0001458412-20-000057 | 10-Q | XBRL Viewer | Crossfirst Bankshares INC

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Cover Page - shares	9 Months Ended
Cover Page - shares	Sep. 30, 2020	Nov. 02, 2020
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2020
Document Transition Report	false
Entity File Number	001-39028
Entity Registrant Name	CROSSFIRST BANKSHARES, INC.
Entity Incorporation, State or Country Code	KS
Entity Tax Identification Number	26-3212879
Entity Address, Address Line One	11440 Tomahawk Creek Parkway
Entity Address, City or Town	Leawood,
Entity Address, State or Province	KS
Entity Address, Postal Zip Code	66211
City Area Code	913
Local Phone Number	312-6822
Title of 12(b) Security	Common Stock, par value $0.01 per share
Trading Symbol	CFB
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		52,195,778
Entity Central Index Key	0001458412
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q3
Amendment Flag	false

Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Assets
Cash and cash equivalents	$ 223,636	$ 187,320
Available-for-sale securities - taxable	214,735	298,208
Available-for-sale securities - tax-exempt	437,411	443,426
Loans, net of allowance for loan losses of $76,035 and $56,896 at September 30, 2020 and December 31, 2019, respectively	4,401,774	3,795,348
Premises and equipment, net	70,599	70,210
Restricted equity securities	20,923	17,278
Interest receivable	19,003	15,716
Foreclosed assets held for sale	2,349	3,619
Deferred tax asset	15,864	13,782
Goodwill and other intangible assets, net	227	7,694
Bank-owned life insurance	67,063	65,689
Other	32,112	12,943
Total assets	5,505,696	4,931,233
Deposits
Noninterest-bearing	754,172	521,826
Savings, NOW and money market	2,597,691	2,162,187
Time	1,140,686	1,239,746
Total deposits	4,492,549	3,923,759
Federal funds purchased and repurchase agreements	13,531	14,921
Federal Home Loan Bank advances	336,100	358,743
Other borrowings	952	921
Interest payable and other liabilities	44,681	31,245
Total liabilities	4,887,813	4,329,589
Stockholders’ equity
Redeemable preferred stock	0	0
Common stock	521	520
Additional paid-in capital	522,226	519,870
Retained earnings	69,355	64,803
Accumulated other comprehensive income	25,781	16,451
Total stockholders’ equity	617,883	601,644
Total liabilities and stockholders’ equity	$ 5,505,696	$ 4,931,233

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Assets
Allowance for loan losses	$ 76,035	$ 56,896
Stockholders’ equity
Redeemable preferred stock par value (in dollars per share)	$ 0.01	$ 0.01
Redeemable preferred stock liquidation value (in dollars per share)	$ 25.00	$ 25.00
Redeemable preferred stock authorized (in shares)	5,000,000	5,000,000
Redeemable preferred stock issued (in shares)	0	0
Common stock par value (in dollars per share)	$ 0.01	$ 0.01
Common stock authorized (in shares)	200,000,000	200,000,000
Common stock issued (in shares)	52,195,778	51,969,203

Consolidated Statements of Income - Unaudited - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Interest Income
Loans, including fees	$ 43,929	$ 49,327	$ 138,591	$ 142,319
Available-for-sale securities - taxable	1,042	1,991	4,174	6,646
Available-for-sale securities - tax-exempt	3,186	2,969	9,758	8,820
Deposits with financial institutions	47	970	583	2,452
Dividends on bank stocks	248	272	808	801
Total interest income	48,452	55,529	153,914	161,038
Interest Expense
Deposits	7,298	18,003	29,975	51,421
Fed funds purchased and repurchase agreements	54	74	162	501
Federal Home Loan Bank Advances	1,749	1,629	4,980	4,739
Other borrowings	24	37	85	112
Total interest expense	9,125	19,743	35,202	56,773
Net Interest Income	39,327	35,786	118,712	104,265
Provision for loan losses	10,875	4,850	45,825	10,550
Net Interest Income after Provision for Loan Losses	28,452	30,936	72,887	93,715
Non-Interest Income
Gain on sale of available-for-sale debt securities	1,012	34	1,725	467
Impairment of premises and equipment held for sale	0	0	0	(424)
Gain on sale of loans	0	49	0	207
Income from bank-owned life insurance	464	476	1,373	1,416
Swap fee income, net	121	1,879	80	2,415
Other non-interest income	192	226	804	695
Total non-interest income	4,063	3,212	8,792	6,529
Non-Interest Expense
Salaries and employee benefits	14,628	14,256	43,022	43,296
Occupancy	2,144	2,080	6,274	6,301
Professional fees	1,132	427	3,098	1,923
Deposit insurance premiums	1,096	302	3,151	2,020
Data processing	652	649	2,065	1,868
Advertising	147	580	870	1,770
Software and communication	959	900	2,772	2,407
Foreclosed assets, net	20	8	1,174	33
Goodwill impairment	0	0	7,397	0
Other non-interest expense	2,233	1,970	6,421	6,145
Total non-interest expense	23,011	21,172	76,244	65,763
Net Income Before Taxes	9,504	12,976	5,435	34,481
Income tax expense	1,498	2,592	928	5,308
Net Income	$ 8,006	$ 10,384	$ 4,507	$ 29,173
Basic Earnings Per Share (in dollars per share)	$ 0.15	$ 0.22	$ 0.09	$ 0.63
Diluted Earnings Per Share (in dollars per share)	$ 0.15	$ 0.21	$ 0.09	$ 0.61
Service charges and fees on customer accounts
Non-Interest Income
Non-interest income	$ 792	$ 72	$ 1,947	$ 441
ATM and credit card interchange income
Non-Interest Income
Non-interest income	$ 1,482	$ 476	$ 2,863	$ 1,312

Consolidated Statements of Comprehensive Income - Unaudited - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 8,006	$ 10,384	$ 4,507	$ 29,173
Other Comprehensive Income
Unrealized gain on available-for-sale debt securities	1,923	5,757	14,073	28,084
Less: income tax	472	1,410	3,440	6,890
Unrealized gain on available-for-sale debt securities, net of income tax	1,451	4,347	10,633	21,194
Reclassification adjustment for realized gains included in income	1,012	34	1,725	467
Less: income tax	248	9	422	115
Less: reclassification adjustment for realized gains included in income, net of income tax	764	25	1,303	352
Other comprehensive income	687	4,322	9,330	20,842
Comprehensive Income	$ 8,693	$ 14,706	$ 13,837	$ 50,015

Consolidated Statements of Stockholders' Equity - Unaudited - USD ($) $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	Preferred Stock	Common Stock	Additional Paid-in Capital	Additional Paid-in Capital Cumulative Effect, Period of Adoption, Adjustment	Retained Earnings	Retained Earnings Cumulative Effect, Period of Adoption, Adjustment	Accumulated Other Comprehensive Income (Loss)	Accumulated Other Comprehensive Income (Loss) Cumulative Effect, Period of Adoption, Adjustment
Beginning balance (in shares) at Dec. 31, 2018			1,200,000	45,074,322
Beginning balance at Dec. 31, 2018	$ 490,336		$ 12	$ 451	$ 454,512		$ 38,371		$ (3,010)
Beginning balance (Adoption of ASU 2016-01) at Dec. 31, 2018		$ 0						$ (69)		$ 69
Beginning balance (Adoption of ASU 2018-07) at Dec. 31, 2018		$ 0				$ 2,159		$ (2,159)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	29,173						29,173
Change in unrealized appreciation on available-for-sale securities	20,842								20,842
Issuance of shares (in shares)				6,851,213
Issuance of shares	88,937			$ 68	88,869
Issuance of shares from equity-based awards (in shares)				53,668
Issuance of shares from equity-based awards	(245)			$ 1	(246)
Retired shares (in shares)			(1,200,000)	(10,000)
Retired shares	(30,155)		$ (12)		(30,088)		(55)
Preferred dividends declared	(175)						(175)
Employee receivables from sale of stock	117				5		112
Stock-based compensation	3,569				3,569
Employee stock purchase plan additions	36				36
Ending balance (in shares) at Sep. 30, 2019			0	51,969,203
Ending balance at Sep. 30, 2019	602,435		$ 0	$ 520	518,816		65,198		17,901
Beginning balance (in shares) at Jun. 30, 2019			0	45,367,641
Beginning balance at Jun. 30, 2019	499,195		$ 0	$ 453	430,347		54,816		13,579
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	10,384						10,384
Change in unrealized appreciation on available-for-sale securities	4,322								4,322
Issuance of shares (in shares)				6,600,245
Issuance of shares	87,220			$ 67	87,154		(1)
Issuance of shares from equity-based awards (in shares)				1,317
Issuance of shares from equity-based awards	(10)				(10)
Employee receivables from sale of stock	0				1		(1)
Stock-based compensation	1,324				1,324
Ending balance (in shares) at Sep. 30, 2019			0	51,969,203
Ending balance at Sep. 30, 2019	602,435		$ 0	$ 520	518,816		65,198		17,901
Beginning balance (in shares) at Dec. 31, 2019			0	51,969,203
Beginning balance at Dec. 31, 2019	601,644		$ 0	$ 520	519,870		64,803		16,451
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	4,507						4,507
Change in unrealized appreciation on available-for-sale securities	9,330								9,330
Issuance of shares from equity-based awards (in shares)				226,575
Issuance of shares from equity-based awards	(868)			$ 1	(869)
Employee receivables from sale of stock	47				2		45
Stock-based compensation	3,202				3,202
Employee stock purchase plan additions	21				21
Ending balance (in shares) at Sep. 30, 2020			0	52,195,778
Ending balance at Sep. 30, 2020	617,883		$ 0	$ 521	522,226		69,355		25,781
Beginning balance (in shares) at Jun. 30, 2020			0	52,167,573
Beginning balance at Jun. 30, 2020	608,092		$ 0	$ 521	521,133		61,344		25,094
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	8,006						8,006
Change in unrealized appreciation on available-for-sale securities	687								687
Issuance of shares from equity-based awards (in shares)				28,205
Issuance of shares from equity-based awards	(115)				(115)
Employee receivables from sale of stock	6				1		5
Stock-based compensation	1,186				1,186
Employee stock purchase plan additions	21				21
Ending balance (in shares) at Sep. 30, 2020			0	52,195,778
Ending balance at Sep. 30, 2020	$ 617,883		$ 0	$ 521	$ 522,226		$ 69,355		$ 25,781

Consolidated Statements of Cash Flows - Unaudited - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Operating Activities
Net income	$ 4,507	$ 29,173
Items not requiring (providing) cash
Depreciation and amortization	3,888	4,015
Provision for loan losses	45,825	10,550
Accretion of discounts and amortization of premiums on securities	4,632	4,098
Equity based compensation	3,223	3,606
Foreclosed asset impairment	1,270	0
Deferred income taxes	(5,098)	2,088
Net realized gains on available-for-sale debt securities	(1,725)	(467)
Goodwill impairment	7,397	0
Changes in
Interest receivable	(3,287)	(1,817)
Other assets	(2,845)	(9,837)
Other liabilities	(4,599)	13,261
Net cash provided by operating activities	53,188	54,670
Investing Activities
Net change in loans	(652,251)	(576,897)
Purchases of available-for-sale securities	(35,326)	(157,492)
Proceeds from maturities of available-for-sale securities	102,529	48,658
Proceeds from sale of available-for-sale securities	31,810	63,515
Purchase of premises and equipment	(4,849)	(649)
Proceeds from the sale of fixed assets	121	3,324
Purchase of restricted equity securities, net	(2,839)	(732)
Net cash used in investing activities	(560,805)	(620,273)
Financing Activities
Net increase in demand deposits, savings, NOW and money market accounts	667,849	237,934
Net increase (decrease) in time deposits	(99,060)	212,077
Net decrease in repurchase agreements and federal funds purchased	(1,390)	(50,596)
Net increase in federal funds sold	0	25,000
Proceeds from Federal Home Loan Bank advances	138,000	45,000
Repayment of Federal Home Loan Bank advances	(160,643)	(50,181)
Retirement of preferred stock	0	(30,000)
Issuance of common shares, net of issuance cost	0	88,782
Acquisition of common stock for tax withholding obligations	(869)	(245)
Net decrease in employee receivables	46	117
Dividends paid on preferred stock	0	(700)
Net cash provided by financing activities	543,933	477,188
Increase (Decrease) in Cash and Cash Equivalents	36,316	(88,415)
Cash and Cash Equivalents, Beginning of Period	187,320	216,541
Cash and Cash Equivalents, End of Period	223,636	128,126
Supplemental Cash Flows Information
Interest paid	37,238	54,998
Income taxes paid	7,335	1,030
Foreclosed assets in settlement of loans	$ 0	$ 2,471

Nature of Operations and Summary of Significant Accounting Policies

9 Months Ended

Sep. 30, 2020

Accounting Policies [Abstract]

Nature of Operations and Summary of Significant Accounting Policies

Organization and Nature of Operations

CrossFirst Bankshares, Inc. (the “Company”) is a bank holding company whose principal activities are the ownership and management of its wholly-owned subsidiaries, CrossFirst Bank (the “Bank”) and CFSA, LLC, which holds cash. In addition, CrossFirst Investments, Inc. (“CFI”) is a wholly-owned subsidiary of the Bank, which holds investments in marketable securities.

Basis of Presentation

The Company’s accounting and reporting policies conform to accounting principles generally accepted in the United States (“GAAP”). The consolidated financial statements include the accounts of the Company, the Bank, CFI and CFSA, LLC. All significant intercompany accounts and transactions have been eliminated in consolidation.

The consolidated interim financial statements are unaudited and certain information and footnote disclosures presented in accordance with GAAP have been condensed or omitted and should be read in conjunction with the Company’s consolidated financial statements, and footnotes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2019 (the “2019 Form 10-K”), filed with the Securities and Exchange Commission (the “SEC”) on March 10, 2020.

In the opinion of management, the interim financial statements include all adjustments which are of a normal, recurring nature necessary for the fair presentation of the financial position, results of operations, and cash flows of the Company and the disclosures made are adequate to make the interim financial information not misleading. The consolidated financial statements have been prepared in accordance with GAAP for interim financial information and the instructions to Form 10-Q adopted by the SEC.

Except for the accounting changes mentioned under “Coronavirus Aid, Relief, and Economic Security Act” and “Change in Accounting Principle” section below, no other significant changes in the accounting policies of the Company occurred since December 31, 2019, the most recent date financial statements were provided within the Company’s 2019 Form 10-K. The information contained in the financial statements and footnotes for the period ended December 31, 2019 included in the Company’s 2019 Form 10-K should be referred to in connection with these unaudited interim consolidated financial statements. Operating results for the interim periods disclosed herein are not necessarily indicative of the results that may be expected for a full year or any future period.

Use of Estimates

The Company identified accounting policies and estimates that, due to the difficult, subjective or complex judgments and assumptions inherent in those policies and estimates and the potential sensitivity of the Company’s financial statements to those judgments and assumptions, are critical to an understanding of the Company’s financial condition and results of operations. Actual results could differ from those estimates. In particular, the novel coronavirus (“COVID-19”) pandemic and resulting impacts to economic conditions, as well as, adverse impacts to the Company’s operations may impact future estimates. The Allowance for Loan and Lease Losses, Deferred Tax Asset, and Fair Value of Financial Instruments are particularly susceptible to significant change.

Cash Equivalents

The Company had $176 million of cash and cash equivalents at the Federal Reserve Bank of Kansas City as of September 30, 2020. The reserve required at September 30, 2020 was $0.

Coronavirus Aid, Relief, and Economic Security Act (“CARES Act”)

The CARES Act allows financial institutions to elect not to consider whether loan modifications relating to the COVID-19 pandemic that they make between March 1, 2020 and the earlier of December 31, 2020 or 60 days after the national emergency related to the COVID-19 pandemic ends are troubled debt restructurings (“TDRs”), which require additional disclosures. The relief can be applied to modifications of loans to borrowers that were not more than 30 days past due as of December 31, 2019. The Company elected to apply the guidance during the first quarter of 2020. The review of loans that meet the criteria is overseen by the Office of the Chief Credit Officer and his team.

Loans Individually Evaluated for Impairment

Prior to the quarter ended June 30, 2020, loans risk rated substandard or lower were considered impaired and evaluated on an individual basis. As of June 30, 2020 and periods going forward, loans risk rated substandard and on accrual were evaluated collectively. The new approach provided a better estimate of potential losses inherent in the substandard portfolio.

A loan is considered impaired when, based on current information and events, it is probable that the Company will be unable to collect the scheduled payments of principal and interest when due according to the contractual terms of the loan agreement. The Company’s definition of a substandard credit was unchanged. Substandard loans exhibit a well-defined weakness or weaknesses that jeopardize repayment. A distinct possibility exists that the Company will sustain some loss if deficiencies are not corrected.

Loss potential, while existing in the aggregate amount of substandard loans, does not have to exist in individual loans classified substandard. As a result, the Company revised its allowance methodology to evaluate substandard, performing loans collectively for impairment as opposed to evaluating these loans individually for impairment. At June 30, 2020, the change in methodology impacted $200 million of performing, substandard loans that were reviewed on a collective basis.

Change in Accounting Principle

On January 1, 2020, the Company adopted the Financial Accounting Standards Board (“FASB”) Accounting Standard Update (“ASU”) 2017-04, Intangibles—Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment, which was applied on a prospective basis. A description of the nature and reason for the change in accounting principle is provided below in the recent accounting pronouncements section.

On January 1, 2020, the Company adopted FASB ASU 2019-12, Simplifying the Accounting for Income Taxes, which was applied as of the adoption date. A description of the nature and reason for the change in accounting principle is provided below in the recent accounting pronouncements section.

Changes Affecting Comparability

Beginning with the quarter ended June 30, 2020, the Company separated the “Foreclosed assets, net” from the “other non-interest expense” category within the Consolidated Statements of Income. The separation was due to an increase in foreclosed asset expenses during 2020. The change had no impact on net income or total stockholders’ equity.

Beginning with the quarter ended June 30, 2020, the Company changed loans individually evaluated for impairment. A discussion regarding this change is provided above under “Loans Individually Evaluated for Impairment” and in “Note 4: Loans and Allowance for Loan Losses (“ALLL”)” within the Notes to the Unaudited Consolidated Financial Statements. The Company separated substandard loans into performing and nonperforming categories that were previously consolidated within the loan footnote disclosures. The change in disclosure did not impact the Company's impaired loan information at December 31, 2019 or ALLL information for the three and nine months ended September 30, 2019 as presented in “Note 4: Loans and Allowance for Loan Losses (“ALLL”)” within the Notes to the Unaudited Consolidated Financial Statements.

Beginning with the quarter ended March 31, 2020, the Company consolidated the “Other” line item previously included in stockholders’ equity into retained earnings within the Consolidated Balance Sheets and the Consolidated Statements of Stockholders’ Equity. The consolidation was made due to the immateriality of the “Other” line item. The change had no impact on net income or total stockholders’ equity.

Emerging Growth Company (“EGC”)

The Company is currently an EGC. An EGC may take advantage of reduced reporting requirements and is relieved of certain other significant requirements that are otherwise generally applicable to public companies. Among the reductions and reliefs, the Company elected to extend the transition period for complying with new or revised accounting standards affecting public companies. This means that the financial statements the Company files or furnishes, will not be subject to all new or revised accounting standards generally applicable to public companies for the transition period for so long as the Company remains an EGC or until the Company affirmatively and irrevocably opts out of the extended transition period under the JOBS Act.

Recent Accounting Pronouncements

The Company has implemented the following ASUs during 2020:

Standard

Date of Adoption

Description

Effect on Financial Statements or Other Significant Matters

ASU 2020-04:

Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting

June 30, 2020

The ASU provides optional expedients and exceptions to contracts, hedging relationships, and other transactions affected by reference rate reform if certain criteria are met.

The ASU only applies to transactions that reference LIBOR or another reference rate expected to be discontinued because of reference rate reform. The expedients and exceptions provided by the amendments do not apply to contract modifications made and hedging relationships entered into or evaluated after December 31, 2022, except for hedging relationships existing as of December 31, 2022, that an entity has elected certain optional expedients for and that are retained through the end of the hedging relationship. The amendments include:

(1) Optional expedients to contract modifications that allow the Company to adjust the effective interest rate of receivables and debt, account for lease modifications as a continuation of the existing lease, and remove the requirement to reassess its original conclusions for contract modifications about whether that contract contains an embedded derivative that is clearly and closely related to the economic characteristics and risks of the host contract under Subtopic 815-15, Derivatives and Hedging—Embedded Derivatives;

(2) Exceptions to the guidance in Topic 815 related to changes in the critical terms of a hedging relationship due to reference rate reform; and

(3) Optional expedients for cash flow and fair value hedges.

The Company had more than $1 billion in loans tied to LIBOR as of September 30, 2020.

The Company does not believe the adoption will have a material accounting impact on the Company’s consolidated financial position or results of operations. Additionally, LIBOR fallback language has been included in key loan provisions of new and renewed loans in preparation for transition from LIBOR to the new benchmark rate when such transition occurs. This standard is expected to ease the administrative burden in accounting for the future effects of reference rate reform.

The ASU allows the Company to recognize the modification related to LIBOR as a continuation of the old contract, rather than a cancellation of the old contract resulting in a write off of unamortized fees and creation of a new contract.

ASU 2019-12:

Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes

January 1, 2020

(Early Adoption)

The ASU simplifies the accounting for income taxes. Among other changes, the ASU:

(1) Removes the exception to the incremental approach for intraperiod tax allocation when there is a loss from continuing operations and income or a gain from other items;

(2) Removes the exception to the general methodology for calculating income taxes in an interim period when a year-to-date loss exceeds the anticipated loss for the year;

(3) Requires an entity to recognize a franchise tax that is partially based on income as an income-based tax and account for any incremental amount incurred as a nonincome based tax; and

(4) Requires an entity to reflect the effect of an enacted change in tax laws or rates in the annual effective tax rate computation in the interim period that includes the enactment date.

The amendments in the ASU did not have a material impact on the Company’s tax methodology, processes, or the Company’s financial statements.

Standard

Date of Adoption

Description

Effect on Financial Statements or Other Significant Matters

ASU 2018-13:

Fair Value Measurement (Topic 820): Disclosure Framework

January 1, 2020

Improves the effectiveness of disclosures in the notes to financial statements by facilitating clear communication of the information. The amendments modify certain disclosure requirements of fair value measurements in Topic 820, Fair Value Measurement.

Entities are no longer required to disclose transfers between Level 1 and Level 2 of the fair value hierarchy or qualitatively disclose the valuation process for Level 3 fair value measurements. The updated guidance requires disclosure of the changes in unrealized gains and losses for the period included in Other Comprehensive Income for recurring Level 3 fair value measurements. Entities are required to disclose the range and weighted average used to develop significant unobservable inputs for Level 3 fair value measurements. The additional provisions of the guidance should be adopted prospectively. The eliminated requirements should be adopted retrospectively.

The adoption did not have a material impact to the Company’s financial statements.

No transfers between Level 1 and Level 2 occurred in 2019 or 2020 and the Company did not have any recurring Level 3 fair value measurements that created an unrealized gain or loss in Other Comprehensive Income. In addition, the Company previously disclosed the range and weighted average used to develop significant unobservable inputs for Level 3 fair value measurements.

ASU 2017-04:

Intangibles—Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment

January 1, 2020

(Early Adoption)

Eliminates Step 2 from the goodwill impairment test which required entities to compute the implied fair value of goodwill. An entity should perform an annual, or interim, goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. An entity should recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value; however, the loss recognized should not exceed the total amount of goodwill allocated to that reporting unit.

On the date of adoption there was no impact to the Company’s financial statements.

The Company’s process for evaluating goodwill impairment was modified to align with the elimination of Step 2. In the second quarter of 2020, the Company performed a Step 0 analysis then a Step 1 analysis and determined that goodwill was fully impaired.

The Company provided updates to the following ASUs that have not been adopted. A complete list of recent, applicable accounting pronouncements was provided in the Company’s 2019 Form 10-K:

Standard

Anticipated Date of Adoption

Description

Effect on Financial Statements or Other Significant Matters

ASU 2016-13

Financial Instruments-Credit Losses

If the Company maintains its EGC status, the Company is not required to implement this standard until January 2023. The Company will continue to monitor its progress and the requirements related to adoption.

Requires an entity to utilize a new impairment model known as the current expected credit loss (“CECL”) model to estimate its lifetime expected credit loss and record an allowance that, when deducted from the amortized cost basis of the financial asset, presents the net amount expected to be collected on the financial asset.

The Company established a committee of individuals from applicable departments to oversee the implementation process. The Company completed the third party software implementation phase that included data capture and portfolio segmentation amongst other items.

The Company completed parallel runs in 2019. During the first nine months of 2020, the Company continued to perform parallel runs using 2020 data and continued to recalibrate inputs as necessary. The Company is evaluating the internal control changes that will be necessary to transition to the third-party platform.

At this time, an estimate of the impact cannot be established as the Company continues to evaluate the inputs into the model. The actual impact could be significantly affected by the composition, characteristics, and quality of the underlying loan portfolio at the time of adoption.

Standard

Anticipated Date of Adoption

Description

Effect on Financial Statements or Other Significant Matters

ASU 2016-02

Leases (Topic 842)

The Company expects to implement this standard on January 1, 2022, unless the Company loses its EGC status during 2021. If EGC status changes, the Company would therefore be required to implement the ASU as of the beginning of 2021.

Requires lessees and lessors to recognize lease assets and lease liabilities on the balance sheet and disclose key information about leasing arrangements.

The update requires lessees and lessors to recognize and measure leases at the beginning of the earliest period presented using a modified retrospective approach with the option to elect certain practical expedients.

The update will also increase disclosures around leases, including qualitative and specific quantitative measures.

The Company expects to apply the update as of the beginning of the period of adoption and the Company does not plan to restate comparative periods. The Company expects to elect certain optional practical expedients.

The Company gathered all potential lease and embedded lease agreements during 2019 and 2020 and is evaluating the applicability and impact to the financial statements.

The Company’s current operating leases relate primarily to four branch locations. Based on the current leases, the Company anticipates recognizing a lease liability and related right-to-use asset on its balance sheet, with an immaterial impact to its income statement compared to the current lease accounting model. However, the ultimate impact of the standard will depend on the Company's lease portfolio as of the adoption date.

Earnings Per Share

9 Months Ended

Sep. 30, 2020

Earnings Per Share [Abstract]

Earnings Per Share

The following table presents the computation of basic and diluted earnings per share:


	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2020		2019		2020		2019
	(Dollars in thousands except per share data)
Earnings per Share
Net income	$	8,006	$	10,384	$	4,507	$	29,173
Less: preferred stock dividends	—		—		—		175
Net income available to common stockholders	$	8,006	$	10,384	$	4,507	$	28,998
Weighted average common shares	52,136,286		48,351,553		52,104,372		46,239,021
Earnings per share	$	0.15	$	0.22	$	0.09	$	0.63
Dilutive Earnings Per Share


Net income available to common stockholders	$	8,006	$	10,384	$	4,507	$	28,998
Weighted average common shares	52,136,286		48,351,553		52,104,372		46,239,021
Effect of dilutive shares	423,840		812,996		463,219		842,706
Weighted average dilutive common shares	52,560,126		49,164,549		52,567,591		47,081,727
Diluted earnings per share	$	0.15	$	0.21	$	0.09	$	0.61

Stock-based awards not included because to do so would be antidilutive	1,214,433		541,556		1,053,393		507,167

Securities

9 Months Ended

Sep. 30, 2020

Investments, Debt and Equity Securities [Abstract]

Securities

The amortized cost and approximate fair values, together with gross unrealized gains and losses, of period end available-for-sale debt and equity securities consisted of the following:


	September 30, 2020
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Approximate Fair Value
	(Dollars in thousands)
Available-for-sale debt securities
Mortgage-backed - GSE residential	$	122,093	$	4,690	$	—	$	126,783
Collateralized mortgage obligations - GSE residential	71,735		1,271		7		72,999
State and political subdivisions	421,075		28,339		220		449,194
Corporate bonds	860		67		2		925
Total available-for-sale debt securities	615,763		34,367		229		649,901
Equity securities
Mutual funds	2,222		23		—		2,245
Total equity securities	2,222		23		—		2,245
Total available-for-sale securities	$	617,985	$	34,390	$	229	$	652,146


	December 31, 2019
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Approximate Fair Value
	(Dollars in thousands)
Available-for-sale debt securities
Mortgage-backed - GSE residential	$	151,037	$	1,668	$	193	$	152,512
Collateralized mortgage obligations - GSE residential	128,876		625		289		129,212
State and political subdivisions	436,448		19,996		104		456,340
Corporate bonds	1,321		88		—		1,409
Total available-for-sale debt securities	717,682		22,377		586		739,473
Equity securities
Mutual funds	2,190		—		29		2,161
Total equity securities	2,190		—		29		2,161
Total available-for-sale securities	$	719,872	$	22,377	$	615	$	741,634

The amortized cost and fair value of available-for-sale debt securities at September 30, 2020, by contractual maturity, are shown below:


	September 30, 2020
	Within			After One to			After Five to			After
	One Year			Five Years			Ten Years			Ten Years			Total
	(Dollars in thousands)
Available-for-sale debt securities
Mortgage-backed - GSE residential(1)
Amortized cost	$	—		$	55		$	199		$	121,839		$	122,093
Estimated fair value	$	—		$	58		$	213		$	126,512		$	126,783
Weighted average yield(2)	—		%	4.57		%	3.91		%	2.03		%	2.06		%
Collateralized mortgage obligations - GSE residential(1)
Amortized cost	$	—		$	—		$	2,496		$	69,239		$	71,735
Estimated fair value	$	—		$	—		$	2,735		$	70,264		$	72,999
Weighted average yield(2)	—		%	—		%	2.77		%	1.10		%	1.16		%
State and political subdivisions
Amortized cost	$	653		$	7,407		$	59,992		$	353,023		$	421,075
Estimated fair value	$	654		$	7,573		$	65,059		$	375,908		$	449,194
Weighted average yield(2)	8.02		%	5.44		%	3.52		%	3.08		%	3.19		%
Corporate bonds
Amortized cost	$	—		$	—		$	860		$	—		$	860
Estimated fair value	$	—		$	—		$	925		$	—		$	925
Weighted average yield(2)	—		%	—		%	5.57		%	—		%	5.57		%
Total available-for-sale debt securities
Amortized cost	$	653		$	7,462		$	63,547		$	544,101		$	615,763
Estimated fair value	$	654		$	7,631		$	68,932		$	572,684		$	649,901
Weighted average yield(2)	8.02		%	5.44		%	3.52		%	2.59		%	2.73		%
(1) Actual maturities may differ from contractual maturities because issuers may have the rights to call or prepay obligations with or without prepayment penalties.
(2) Yields are calculated based on amortized cost.

The following tables show the number of securities, unrealized loss, and fair value of the Company’s investments with unrealized losses that are not deemed to be other-than-temporarily impaired (“OTTI”), aggregated by investment class and length of time that individual securities have been in a continuous unrealized loss position at September 30, 2020 and December 31, 2019:


	September 30, 2020
	Less than 12 Months					12 Months or More					Total
	Fair Value		Unrealized Losses		Number of Securities	Fair Value		Unrealized Losses		Number of Securities	Fair Value		Unrealized Losses		Number of Securities
	(Dollars in thousands)
Available-for-sale debt securities
Mortgage-backed - GSE residential	$	—	$	—	—	$	—	$	—	—	$	—	$	—	—
Collateralized mortgage obligations - GSE residential	3,178		7		1	—		—		—	3,178		7		1
State and political subdivisions	14,998		220		19	26		—		1	15,024		220		20
Corporate bonds	457		2		1	—		—		—	457		2		1
Total temporarily impaired debt securities	$	18,633	$	229	21	$	26	$	—	1	$	18,659	$	229	22


	December 31, 2019
	Less than 12 Months					12 Months or More					Total
	Fair Value		Unrealized Losses		Number of Securities	Fair Value		Unrealized Losses		Number of Securities	Fair Value		Unrealized Losses		Number of Securities
	(Dollars in thousands)
Available-for-sale debt securities
Mortgage-backed - GSE residential	$	7,959	$	38	2	$	20,396	$	155	4	$	28,355	$	193	6
Collateralized mortgage obligations - GSE residential	48,980		199		7	8,622		90		9	57,602		289		16
State and political subdivisions	21,412		102		11	167		2		2	21,579		104		13
Corporate bonds	530		—		1	—		—		—	530		—		1
Total temporarily impaired debt securities	$	78,881	$	339	21	$	29,185	$	247	15	$	108,066	$	586	36

The Company expects to recover the amortized cost basis over the term of the securities. The Company does not intend to sell the investments and it is not more likely than not the Company will be required to sell the investments before recovery of their amortized cost basis, which may be maturity.

Gains and losses on the sale of debt securities are recorded on the trade date and are determined using the specific identification method. Gross gains of $2 million and $506 thousand and gross losses of $60 thousand and $39 thousand resulting from sales of available-for-sale securities were realized for the nine-months ended September 30, 2020 and 2019, respectively. The gross gains as of September 30, 2020, included $75 thousand related to a previously disclosed OTTI municipal security that was settled in 2020.

Loans and Allowance for Loan Losses ("ALLL")

9 Months Ended

Sep. 30, 2020

Receivables [Abstract]

Loans and Allowance for Loan Losses ("ALLL")

Loans and Allowance for Loan Losses (“ALLL”)

Categories of loans at September 30, 2020 and December 31, 2019 include:


	September 30, 2020		December 31, 2019

	(Dollars in thousands)
Commercial	$	1,291,572	$	1,356,817
Energy	384,181		408,573
Commercial real estate	1,195,631		1,024,041
Construction and land development	587,617		628,418
Residential real estate	618,082		398,695
Paycheck Protection Program (“PPP”)	369,260		—


Consumer	46,771		45,163
Gross loans	4,493,114		3,861,707
Less: Allowance for loan losses	76,035		56,896
Less: Net deferred loan fees and costs	15,305		9,463
Net loans	$	4,401,774	$	3,795,348

Allowance for Loan Losses

The ALLL is established as losses are estimated to have occurred through a provision for loan losses charged to income. Loan losses are charged against the allowance when management believes the loan balance is not collectible. Subsequent recoveries, if any, are credited to the allowance.

The ALLL is evaluated on a regular basis by management and is based upon management’s periodic review of its ability to collect the loans in light of historical experience, the nature and volume of the loan portfolio, adverse situations that may affect the borrower’s ability to repay, estimated value of any underlying collateral and prevailing economic conditions. This evaluation is inherently subjective as it requires estimates that are susceptible to significant revision as more information becomes available.

The ALLL consists of allocated and general components. The allocated component relates to loans that are classified as impaired. For those loans that are classified as impaired, an allowance is established when the discounted cash flows (or collateral value or observable market price) of the impaired loan is lower than the carrying value of that loan. The general component covers all loans on accrual and is based on historical charge-off experience and expected loss given default derived from the Company’s internal risk rating process and loan categories. Other adjustments may be made to the allowance for pools of loans after an assessment of internal or external influences on credit quality that are not fully reflected in the historical loss or risk rating data.

The Company evaluates the loan risk grading system definitions, portfolio segment definitions, and ALLL methodology on an ongoing basis. Starting with the quarter ended June 30, 2020, the Company distinguished between performing and nonperforming substandard loans, as previously discussed in “Note 1: Nature of Operations and Summary of Significant Accounting Policies”. In addition, the Company separated PPP loans that are 100% guaranteed by the Small Business Administration (“SBA”). No additional changes to loan definitions, segmentation, and ALLL methodology occurred during the third quarter of 2020.

The following tables summarize the activity in the ALLL by portfolio segment and disaggregated based on the Company’s impairment methodology. The allocation in one portfolio segment does not preclude its availability to absorb losses in other segments:


	Commercial		Energy		Commercial Real Estate		Construction and Land Development		Residential Real Estate		PPP		Consumer		Total
	(Dollars in thousands)
Three months ended September 30, 2020
Allowance for loan losses
Beginning balance	$	26,543	$	17,372	$	16,899	$	5,019	$	4,868	$	—	$	484	$	71,185
Provision charged to expense	7,439		2,168		908		(530)		882		—		8		10,875
Charge-offs	(5,781)		—		—		—		(256)		—		—		(6,037)
Recoveries	2		—		—		—		—		—		10		12
Ending balance	$	28,203	$	19,540	$	17,807	$	4,489	$	5,494	$	—	$	502	$	76,035


	Commercial		Energy		Commercial Real Estate		Construction and Land Development		Residential Real Estate		PPP		Consumer		Total
	(Dollars in thousands)
Three months ended September 30, 2019
Allowance for loan losses
Beginning balance	$	22,975	$	7,300	$	7,533	$	2,602	$	2,138	$	—	$	304	$	42,852
Provision charged to expense	3,535		1,077		(249)		414		82		—		(9)		4,850
Charge-offs	(1,700)		(3,000)		—		—		—		—		(8)		(4,708)
Recoveries	1		—		—		—		—		—		—		1
Ending balance	$	24,811	$	5,377	$	7,284	$	3,016	$	2,220	$	—	$	287	$	42,995


	Commercial		Energy		Commercial Real Estate		Construction and Land Development		Residential Real Estate		PPP		Consumer		Total
	(Dollars in thousands)
Nine months ended September 30, 2020
Allowance for loan losses
Beginning balance	$	35,864	$	6,565	$	8,085	$	3,516	$	2,546	$	—	$	320	$	56,896
Provision charged to expense	16,210		15,253		9,722		973		3,393		—		274		45,825
Charge-offs	(23,946)		(2,278)		—		—		(445)		—		(104)		(26,773)
Recoveries	75		—		—		—		—		—		12		87
Ending balance	$	28,203	$	19,540	$	17,807	$	4,489	$	5,494	$	—	$	502	$	76,035


	Commercial		Energy		Commercial Real Estate		Construction and Land Development		Residential Real Estate		PPP		Consumer		Total
	(Dollars in thousands)
Nine months ended September 30, 2019
Allowance for loan losses
Beginning balance	$	16,584	$	10,262	$	6,755	$	2,475	$	1,464	$	—	$	286	$	37,826
Provision charged to expense	11,166		(2,461)		529		541		756		—		$	19	10,550
Charge-offs	(2,954)		(3,000)		—		—		—		—		(19)		(5,973)
Recoveries	15		576		—		—		—		—		1		592
Ending balance	$	24,811	$	5,377	$	7,284	$	3,016	$	2,220	$	—	$	287	$	42,995


	Commercial		Energy		Commercial Real Estate		Construction and Land Development		Residential Real Estate		PPP		Consumer		Total
	(Dollars in thousands)
September 30, 2020
Period end allowance for loan losses allocated to:
Individually evaluated for impairment	$	2,432	$	2,540	$	1,525	$	—	$	—	$	—	$	—	$	6,497
Collectively evaluated for impairment	$	25,771	$	17,000	$	16,282	$	4,489	$	5,494	$	—	$	502	$	69,538
Ending balance	$	28,203	$	19,540	$	17,807	$	4,489	$	5,494	$	—	$	502	$	76,035

Allocated to loans:
Individually evaluated for impairment	$	38,589	$	21,318	$	17,035	$	—	$	6,406	$	—	$	246	$	83,594
Collectively evaluated for impairment	$	1,252,983	$	362,863	$	1,178,596	$	587,617	$	611,676	$	369,260	$	46,525	$	4,409,520
Ending balance	$	1,291,572	$	384,181	$	1,195,631	$	587,617	$	618,082	$	369,260	$	46,771	$	4,493,114


	Commercial		Energy		Commercial Real Estate		Construction and Land Development		Residential Real Estate		PPP		Consumer		Total
	(Dollars in thousands)
December 31, 2019
Period end allowance for loan losses allocated to:
Individually evaluated for impairment	$	19,942	$	1,949	$	210	$	—	$	197	$	—	$	—	$	22,298
Collectively evaluated for impairment	$	15,922	$	4,616	$	7,875	$	3,516	$	2,349	$	—	$	320	$	34,598
Ending balance	$	35,864	$	6,565	$	8,085	$	3,516	$	2,546	$	—	$	320	$	56,896
Allocated to loans:
Individually evaluated for impairment	$	70,876	9,744		$	10,492	$	—	$	2,388	$	—	$	—	$	93,500
Collectively evaluated for impairment	$	1,285,941	$	398,829	$	1,013,549	$	628,418	$	396,307	$	—	$	45,163	$	3,768,207
Ending balance	$	1,356,817	$	408,573	$	1,024,041	$	628,418	$	398,695	$	—	$	45,163	$	3,861,707

Credit Risk Profile

The Company analyzes its loan portfolio based on internal rating categories (grades 1 - 8), portfolio segmentation and payment activity. These categories are utilized to develop the associated ALLL. A description of the loan grades and segments follows:

Loan Grades

•Pass (risk rating 1-4) - Considered satisfactory. Includes borrowers that generally maintain good liquidity and financial condition or the credit is currently protected with sales trends remaining flat or declining. Most ratios compare favorably with industry norms and Company policies. Debt is programmed and timely repayment is expected.

•Special Mention (risk rating 5) - Borrowers generally exhibit adverse trends in operations or an imbalanced position in their balance sheet that has not reached a point where repayment is jeopardized. Credits are currently protected but, if left uncorrected, the potential weaknesses may result in deterioration of the repayment prospects for the credit or in the Company’s credit or lien position at a future date. These credits are not adversely classified and do not expose the Company to enough risk to warrant adverse classification.

•Substandard (risk rating 6) - Credits generally exhibit well-defined weakness(es) that jeopardize repayment. Credits are inadequately protected by the current worth and paying capacity of the obligor or of the collateral pledged. A distinct possibility exists that the Company will sustain some loss if deficiencies are not corrected. Loss potential, while existing in the aggregate amount of substandard assets, does not have to exist in individual assets classified substandard. Substandard loans include both performing and nonperforming loans and are broken out in the table below.

•Doubtful (risk rating 7) - Credits which exhibit weaknesses inherent in a substandard credit with the added characteristic that these weaknesses make collection or liquidation in full highly questionable or improbable based on existing facts, conditions and values. Because of reasonably specific pending factors, which may work to the advantage and strengthening of the assets, classification as a loss is deferred until its more exact status may be determined.

•Loss (risk rating 8) - Credits which are considered uncollectible or of such little value that their continuance as a bankable asset is not warranted.

Loan Portfolio Segments

•Commercial - Includes loans to commercial customers for use in financing working capital, equipment purchases and expansions. Repayment is primarily from the cash flow of a borrower’s principal business operation. Credit risk is driven by creditworthiness of a borrower and the economic conditions that impact the cash flow stability from business operations.

•Energy - Includes loans to oil and natural gas customers for use in financing working capital needs, exploration and production activities, and acquisitions. The loans are repaid primarily from the conversion of crude oil and natural gas to cash. Credit risk is driven by creditworthiness of a borrower and the economic conditions that impact the cash flow stability from business operations. Energy loans are typically collateralized with the underlying oil and gas reserves.

•Commercial Real Estate - Loans typically involve larger principal amounts, and repayment of these loans is generally dependent on the successful operations of the property securing the loan or the business conducted on the property securing the loan. These are viewed primarily as cash flow loans and secondarily as loans secured by real estate. Credit risk may be impacted by the creditworthiness of a borrower, property values and the local economies in the borrower’s market areas.

•Construction and Land Development - Loans are usually based upon estimates of costs and estimated value of the completed project and include independent appraisal reviews and a financial analysis of the developers and property owners. Sources of repayment include permanent loans, sales of developed property or an interim loan commitment from the Company until permanent financing is obtained. These loans are higher risk than other real estate loans due to their ultimate repayment being sensitive to interest rate changes, general economic conditions and the availability of long-term financing. Credit risk may be impacted by the creditworthiness of a borrower, property values and the local economies in the borrower’s market areas.

•Residential Real Estate - The loans are generally secured by owner-occupied 1-4 family residences or multifamily properties. Repayment of these loans is primarily dependent on the personal income and credit rating of the borrowers or underlying tenants. Credit risk in these loans can be impacted by economic conditions within or outside the borrower’s market areas that might impact either property values, a borrower’s personal income, or residents’ income.

•PPP - The loans were established by the CARES Act which authorized forgivable loans to small businesses to pay their employees during the COVID-19 pandemic. The program requires all loan terms to be the same for everyone. The loans

are 100 percent guaranteed by the SBA and repayment is primarily dependent on the borrower’s cash flow or SBA repayment approval.

•Consumer - The loan portfolio consists of revolving lines of credit and various term loans such as automobile loans and loans for other personal purposes. Repayment is primarily dependent on the personal income and credit rating of the borrowers. Credit risk is driven by consumer economic factors (such as unemployment and general economic conditions in the borrower’s market area) and the creditworthiness of a borrower.

The following tables present the credit risk profile of the Company’s loan portfolio based on internal rating categories (grades 1 - 8), portfolio segmentation, and payment activity:



	Pass		Special Mention		Substandard Performing		Substandard Nonperforming		Doubtful		Loss		Total
	(Dollars in thousands)
September 30, 2020
Commercial	$	1,106,338	$	71,746	$	75,714	$	34,528	$	3,246	$	—	$	1,291,572
Energy	186,881		58,726		117,389		17,435		3,750		—		384,181
Commercial real estate	1,114,802		41,030		26,624		12,377		798		—		1,195,631
Construction and land development	581,160		5,299		1,158		—		—		—		587,617
Residential real estate	610,909		527		3,467		3,179		—		—		618,082
PPP	369,260		—		—		—		—		—		369,260


Consumer	46,525		—		—		246		—		—		46,771
	$	4,015,875	$	177,328	$	224,352	$	67,765	$	7,794	$	—	$	4,493,114



	Pass		Special Mention		Substandard Performing		Substandard Nonperforming		Doubtful		Loss		Total
	(Dollars in thousands)
December 31, 2019
Commercial	$	1,258,952	$	27,069	$	38,666	$	32,130	$	—	$	—	$	1,356,817
Energy	392,233		9,460		2,340		—		4,540		—		408,573
Commercial real estate	1,007,921		9,311		5,746		120		943		—		1,024,041
Construction and land development	628,418		—		—		—		—		—		628,418
Residential real estate	394,495		1,789		469		1,942		—		—		398,695
PPP	—		—		—		—		—		—		—


Consumer	45,163		—		—		—		—		—		45,163
	$	3,727,182	$	47,629	$	47,221	$	34,192	$	5,483	$	—	$	3,861,707

Loan Portfolio Aging Analysis

The following tables present the Company’s loan portfolio aging analysis as of September 30, 2020 and December 31, 2019:


	30-59 Days Past Due		60-89 Days Past Due		90 Days or More		Total Past Due		Current		Total Loans Receivable		Loans >= 90 Days and Accruing
	(Dollars in thousands)
September 30, 2020
Commercial	$	12,274	$	28,487	$	6,641	$	47,402	$	1,244,170	$	1,291,572	$	1,141
Energy	—		1,540		3,055		4,595		379,586		384,181		—
Commercial real estate	1,459		—		4,475		5,934		1,189,697		1,195,631		—
Construction and land development	—		—		—		—		587,617		587,617		—
Residential real estate	1,591		—		6,124		7,715		610,367		618,082		3,183
PPP	—		—		—		—		369,260		369,260		—


Consumer	—		—		—		—		46,771		46,771		—
	$	15,324	$	30,027	$	20,295	$	65,646	$	4,427,468	$	4,493,114	$	4,324


	30-59 Days Past Due		60-89 Days Past Due		90 Days or More		Total Past Due		Current		Total Loans Receivable		Loans >= 90 Days and Accruing
	(Dollars in thousands)
December 31, 2019
Commercial	$	1,091	$	276	$	30,911	$	32,278	$	1,324,539	$	1,356,817	$	37
Energy	2,340		—		4,593		6,933		401,640		408,573		53
Commercial real estate	316		—		4,589		4,905		1,019,136		1,024,041		4,501
Construction and land development	196		—		—		196		628,222		628,418		—
Residential real estate	2,347		—		1,919		4,266		394,429		398,695		—
PPP	—		—		—		—		—		—		—
Consumer	2		254		—		256		44,907		45,163		—
	$	6,292	$	530	$	42,012	$	48,834	$	3,812,873	$	3,861,707	$	4,591

Impaired Loans

A loan is considered impaired, in accordance with the impairment accounting guidance (ASC 310-10-35-16), when based on current information and events, it is probable the Company will be unable to collect all amounts due from the borrower in accordance with the contractual terms of the loan. Impaired loans include nonperforming loans but also include loans modified in troubled debt restructurings where concessions have been granted to borrowers experiencing financial difficulties. The intent of concessions is to maximize collection.

Groups of loans with similar risk characteristics are collectively evaluated for impairment based on the group’s historical loss experience adjusted for changes in trends, conditions and other relevant factors that affect repayment of the loans. The following tables present loans individually evaluated for impairment, including all restructured and formerly restructured loans, for the periods ended September 30, 2020 and December 31, 2019:


			Unpaid
	Recorded Balance		Principal Balance		Specific Allowance
	(Dollars in thousands)
September 30, 2020
Loans without a specific valuation
Commercial	$	29,439	$	35,220	$	—
Energy	—		—		—
Commercial real estate	4,628		4,628		—
Construction and land development	—		—		—
Residential real estate	6,406		6,662		—
PPP	—		—		—


Consumer	246		246		—
Loans with a specific valuation
Commercial	9,150		20,538		2,432
Energy	21,318		26,597		2,540
Commercial real estate	12,407		13,206		1,525
Construction and land development	—		—		—
Residential real estate	—		—		—
PPP	—		—		—


Consumer	—		—		—


Total
Commercial	38,589		55,758		2,432
Energy	21,318		26,597		2,540
Commercial real estate	17,035		17,834		1,525
Construction and land development	—		—		—
Residential real estate	6,406		6,662		—
PPP	—		—		—


Consumer	246		246		—
	$	83,594	$	107,097	$	6,497


			Unpaid
	Recorded Balance		Principal Balance		Specific Allowance
	(Dollars in thousands)
December 31, 2019
Loans without a specific valuation
Commercial	$	35,846	$	35,846	$	—
Energy	2,864		2,864		—
Commercial real estate	9,464		9,464		—
Construction and land development	—		—		—
Residential real estate	2,139		2,139		—
PPP	—		—		—
Consumer	—		—		—
Loans with a specific valuation
Commercial	35,030		40,030		19,942
Energy	6,880		9,880		1,949
Commercial real estate	1,028		1,028		210
Construction and land development	—		—		—
Residential real estate	249		249		197
PPP	—		—		—
Consumer	—		—		—

Total
Commercial	70,876		75,876		19,942
Energy	9,744		12,744		1,949
Commercial real estate	10,492		10,492		210
Construction and land development	—		—		—
Residential real estate	2,388		2,388		197
PPP	—		—		—
Consumer	—		—		—
	$	93,500	$	101,500	$	22,298

The table below shows interest income recognized during the three and nine month periods ended September 30, 2020 and 2019 for impaired loans, including all restructured and formerly restructured loans, held at the end of each period:


	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2020		2019		2020		2019
	(Dollars in thousands)
Commercial	$	12	$	386	$	841	$	862
Energy	2		98		257		324
Commercial real estate	58		200		346		613
Construction and land development	—		—		—		—
Residential real estate	36		8		108		17
PPP	—		—		—		—


Consumer	—		—		—		—
Total interest income recognized	$	108	$	692	$	1,552	$	1,816

The table below shows the three and nine month average balance of impaired loans for the periods ended September 30, 2020 and 2019 by loan category for impaired loans, including all restructured and formerly restructured loans, held at the end of each period:


	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2020		2019		2020		2019
	(Dollars in thousands)
Commercial	$	45,482	$	54,410	$	49,538	$	49,265
Energy	21,396		13,623		23,220		15,091
Commercial real estate	17,937		16,690		18,132		16,528
Construction and land development	—		—		—		—
Residential real estate	6,419		2,538		6,304		2,354
PPP	—		—		—		—
Consumer	248		—		253		—
Total average impaired loans	$	91,482	$	87,261	$	97,447	$	83,238

Non-accrual Loans

Non-accrual loans are loans for which the Company does not record interest income. The accrual of interest on loans is discontinued at the time the loan is 90 days past due unless the credit is well secured and in process of collection. Past due status is based on contractual terms of the loan. In all cases, loans are placed on non-accrual or charged off at an earlier date, if collection of principal or interest is considered doubtful.

All interest accrued but not collected for loans that are placed on non-accrual or charged off are reversed against interest income. The interest on these loans is accounted for on the cash basis or cost-recovery method, until qualifying for return to accrual. Loans are returned to accrual status when all the principal and interest amounts contractually due are brought current and future payments are reasonably assured. The following table presents the Company’s non-accrual loans by loan category at September 30, 2020 and December 31, 2019:



	September 30, 2020		December 31, 2019
	(Dollars in thousands)
Commercial	$	37,774	$	32,130
Energy	21,185		4,540
Commercial real estate	13,176		1,063
Construction and land development	—		—
Residential real estate	3,179		1,942
PPP	—		—
Consumer	246		—
Total non-accrual loans	$	75,560	$	39,675

Troubled Debt Restructurings

Restructured loans are those extended to borrowers who are experiencing financial difficulty and who have been granted a concession, excluding loan modifications as a result of the COVID-19 pandemic. The modification of terms typically includes the extension of maturity, reduction or deferment of monthly payment, or reduction of the stated interest rate.

For the three and nine-month periods ended September 30, 2020, the modifications related to the TDRs below did not impact the ALLL because the loans were previously impaired and evaluated on an individual basis or enough collateral was obtained.

The table below presents loans restructured, excluding loans restructured as a result of the COVID-19 pandemic, during the three and nine months ended September 30, 2020 and 2019, including the post-modification outstanding balance and the type of concession made:


	Three Months Ended				Nine Months Ended
	September 30,		September 30,		September 30,		September 30,
	2020		2019		2020		2019
	(Dollars in thousands)
Commercial
- Interest rate reduction	$	—	$	—	$	3,171	$	—
- Reduction of monthly payment	—		—		—		994
- Extension of maturity date	—		—		—		30,005
Energy
- Extension of maturity date	—		—		2,340		—
Commercial real estate

- Reduction of monthly payment	—		—		—		3,767


Residential real estate
- Payment deferral	—		—		65		—



Total troubled debt restructurings	$	—	$	—	$	5,576	$	34,766

The balance of restructured loans, excluding loans restructured as a result of the COVID-19 pandemic, is provided below as of September 30, 2020 and December 31, 2019. In addition, the balance of those loans that are in default at any time during the past twelve months at September 30, 2020 and December 31, 2019 is provided below:



	September 30, 2020					December 31, 2019
	Number of Loans	Outstanding Balance		Balance 90 days past due at any time during previous 12 months(1)		Number of Loans	Outstanding Balance		Balance 90 days past due at any time during previous 12 months(1)
	(Dollars in thousands)
Commercial	6	$	7,895	$	3,762	7	$	31,770	$	831
Energy	3	3,373		2,713		2	2,864		—
Commercial real estate	3	4,683		—		3	4,909		—
Construction and land development	—	—		—		—	—		—
Residential real estate	2	3,247		45		—	—		—
PPP	—	—		—		—	—		—
Consumer	—	—		—		—	—		—
Total troubled debt restructured loans	14	$	19,198	$	6,520	12	$	39,543	$	831
(1) Default is considered to mean 90 days or more past due as to interest or principal.

The TDRs above had an allowance of $3 million and $18 million as of September 30, 2020 and December 31, 2019, respectively.

Derivatives and Hedging

9 Months Ended

Sep. 30, 2020

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivatives and Hedging

Derivatives and HedgingDerivatives not designated as hedges are not speculative and result from a service the Company provides to clients. The Company executes interest rate swaps with customers to facilitate their respective risk management strategies. Those interest rate swaps are simultaneously hedged by offsetting derivatives that the Company executes with a third party, such that the Company minimizes its net risk exposure resulting from such transactions. As the interest rate derivatives associated with this program do not meet the strict hedge accounting requirements, changes in the fair value of both the customer derivatives and the offsetting derivatives are recognized directly in earnings. The gains and losses are included in “other assets” on the Statements of Cash Flows.

During 2019, the Company changed an input associated with the fair market value related to derivatives not designated as hedges. The model utilized to calculate the non-performance risk, also known as the credit valuation adjustment, or CVA, was adjusted from a more conservative default methodology to a review of the historical defaults recognized by the Company. Management believes this change better aligns with the Company’s credit methodology and underwriting standards.

As of September 30, 2020 and December 31, 2019, the Company had the following outstanding derivatives that were not designated as hedges in qualifying hedging relationships:



	September 30, 2020			December 31, 2019
Product	Number of Instruments	Notional Amount		Number of Instruments	Notional Amount
	(Dollars in thousands)
Back-to-back swaps	60	$	545,559	56	$	380,050

The table below presents the fair value of the Company’s derivative financial instruments and their classification on the Balance Sheet as of September 30, 2020 and December 31, 2019:


	Asset Derivatives					Liability Derivatives
	Balance Sheet	September 30,		December 31,		Balance Sheet	September 30,		December 31,
	Location	2020		2019		Location	2020		2019
	(Dollars in thousands)
Derivatives not designated as hedging instruments
Interest rate products	Other assets	$	27,873	$	9,838	Other liabilities	$	27,949	$	9,907

The effect of the Company’s derivative financial instruments that are not designated as hedging instruments are reported on the Consolidated Statements of Income as swap fee income, net. The effect of the Company’s derivative financial instruments gain (loss) are reported on the Consolidated Statements of Cash Flows within other assets and other liabilities.

Goodwill and Other Intangible Assets

9 Months Ended

Sep. 30, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Other Intangible Assets

In accordance with GAAP, the Company performs annual tests to identify impairment of goodwill and more frequently if events or circumstances indicate a potential impairment may exist. The Company compares the reporting unit’s fair value with its carrying amount, including goodwill. If the carrying amount exceeds fair value, an impairment loss is recognized in an amount equal to that excess.

As a result of the recent economic conditions resulting from the COVID-19 pandemic and oil market volatility, the Company conducted a June 30, 2020 goodwill impairment test. The test required a goodwill impairment charge of $7 million, representing full impairment of goodwill. The primary causes of the goodwill impairment were economic conditions, volatility in the market capitalization of the Company, increased loan provision in light of the COVID-19 pandemic, and other changes in key variables driven by the uncertain macro-environment that when combined, resulted in the reporting unit’s fair value being less than the carrying value. The Tulsa, Oklahoma market represented the reporting unit and included all goodwill previously recorded.

The reporting unit’s fair value was determined using a combination of: (i) the capitalization of earnings method, an income approach, and (ii) the public company method, a market approach. The income approach estimated fair value by determining the cash flow in a single period, adjusted for growth that is adjusted by a capitalization rate. The market approach estimated fair value by averaging the price-to-book multiples from peer, public banks and adding a control premium.

The Company conducted an impairment test of its core deposit intangible (“CDI”) as of June 30, 2020. The Company used an income approach to calculate a CDI fair market value. The results indicated the CDI was not impaired as of June 30, 2020.

Fair value determinations require considerable judgment and are sensitive to changes in underlying assumptions, estimates, and market factors. Estimating the fair value of individual reporting units requires management to make assumptions and estimates regarding the Company’s future plans, as well as industry, economic, and regulatory conditions. These assumptions and estimates include estimated future cash flows, income tax rates, discount rates, growth rates, and other market factors.

The following table summarizes the change in the Company’s goodwill and CDI for the nine-months ended September 30, 2020:


	Goodwill		Core Deposit Intangible		Total Intangible Assets
	(Dollars in thousands)
Balance at December 31, 2019	$	7,397	$	297	$	7,694
Impairment	(7,397)		—		(7,397)
Amortization	—		(70)		(70)
Balance at September 30, 2020	$	—	$	227	$	227

Time Deposits and Borrowings

9 Months Ended

Sep. 30, 2020

Maturities of Time Deposits [Abstract]

Time Deposits and Borrowings

The scheduled maturities, excluding interest, of the Company’s borrowings at September 30, 2020 were as follows:


	September 30, 2020
	Within One Year		One to Two Years		Two to Three Years		Three to Four Years		Four to Five Years		After Five Years		Total
	(Dollars in thousands)
Time deposits	$	948,251	$	115,197	$	52,074	$	24,669	$	495	$	—	$	1,140,686
Fed funds purchased & repurchase agreements	13,531		—		—		—		—		—		13,531
FHLB borrowings	59,500		21,500		35,000		—		5,100		215,000		336,100

Trust preferred securities(1)	—		—		—		—		—		952		952
	$	1,021,282	$	136,697	$	87,074	$	24,669	$	5,595	$	215,952	$	1,491,269

(1) The contract value of the trust preferred securities is $2.6 million and is currently being accreted to the maturity date of 2035.

Change in Accumulated Other Comprehensive Income ("AOCI")

9 Months Ended

Sep. 30, 2020

Equity [Abstract]

Change in Accumulated Other Comprehensive Income ("AOCI")

Change in Accumulated Other Comprehensive Income (“AOCI”)

Amounts reclassified from AOCI and the affected line items in the consolidated Statements of Operations during the three and nine months ended September 30, 2020 and 2019, were as follows:




	Three Months Ended				Nine Months Ended
	September 30,				September 30,				Affected Line Item in the
	2020		2019		2020		2019		Statements of Operations
	(Dollars in thousands)
Unrealized gains on available-for-sale securities	$	1,012	$	34	$	1,725	$	467	Gain on sale of available-for-sale debt securities

Less: tax effect	248		9		422		115		Income tax expense
Net reclassified amount	$	764	$	25	$	1,303	$	352

Regulatory Matters

9 Months Ended

Sep. 30, 2020

Banking Regulation, Risk-Based Information [Abstract]

Regulatory Matters

The Company and the Bank are subject to various regulatory capital requirements administered by the federal banking agencies. Failure to meet minimum capital requirements can initiate certain mandatory and possibly additional discretionary actions by regulators that, if undertaken, could have a direct material effect on the Company’s consolidated financial statements. Management believes that, as of September 30, 2020, the Company and the Bank met all capital adequacy requirements to which they are subject.

The capital rules require the Company to maintain a 2.5% capital conservation buffer with respect to Common Equity Tier I capital, Tier I capital to risk-weighted assets, and total capital to risk-weighted assets, which is included in the column “Minimum Capital Required - Basel III Fully Phased-In” within the table below. A financial institution with a conservation buffer of less than the required amount is subject to limitations on capital distributions, including dividend payments and stock repurchases, as well as certain discretionary bonus payments to executive officers.

The Company’s and the Bank’s actual capital amounts and ratios as of September 30, 2020 and December 31, 2019 are presented in the following table:


	Actual				Minimum Capital Required - Basel III Fully Phased-In			Required to be Considered Well Capitalized
	Amount		Ratio			Amount		Ratio		Amount		Ratio
	(Dollars in thousands)
September 30, 2020
Total Capital to Risk-Weighted Assets
Consolidated	$	652,827	13.2	%		$	518,259	10.5	%	N/A		N/A
Bank	601,491		12.2			518,063		10.5		$	493,393	10.0	%
Tier I Capital to Risk-Weighted Assets
Consolidated	590,952		12.0			419,543		8.5		N/A		N/A
Bank	539,639		10.9			419,384		8.5		394,714		8.0
Common Equity Tier 1 to Risk-Weighted Assets
Consolidated	590,000		12.0			345,506		7.0		N/A		N/A
Bank	539,639		10.9			345,375		7.0		320,706		6.5
Tier I Capital to Average Assets
Consolidated	590,952		10.8			217,932		4.0		N/A		N/A
Bank	$	539,639	9.9	%		$	217,994	4.0	%	$	272,492	5.0	%
December 31, 2019
Total Capital to Risk-Weighted Assets
Consolidated	$	633,228	13.4	%		$	495,095	10.5	%	N/A		N/A
Bank	581,600		12.3			494,954		10.5		$	471,385	10.0	%
Tier I Capital to Risk-Weighted Assets
Consolidated	576,332		12.2			400,791		8.5		N/A		N/A
Bank	524,704		11.1			400,677		8.5		377,108		8.0
Common Equity Tier 1 to Risk-Weighted Assets
Consolidated	575,411		12.2			330,063		7.0		N/A		N/A
Bank	524,704		11.1			329,970		7.0		306,400		6.5
Tier I Capital to Average Assets
Consolidated	576,332		12.1			191,099		4.0		N/A		N/A
Bank	$	524,704	11.0	%		$	191,170	4.0	%	$	238,963	5.0	%

- Definition

The entire disclosure for regulatory capital requirement for depository and lending institutions. Institutions include, but not are not limited to, finance company, insured depository institution, bank holding company, savings and loan association holding company, bank and savings institution not federally insured, mortgage company, foreign financial institution and credit union.

+ References + Details

Stock-Based Compensation

9 Months Ended

Sep. 30, 2020

Share-based Payment Arrangement [Abstract]

Stock-Based Compensation

Stock-Based CompensationThe Company issues stock-based compensation in the form of nonvested restricted stock and stock appreciation rights under the 2018 Omnibus Equity Incentive Plan (“Omnibus Plan”). The Omnibus Plan will expire on the tenth anniversary of its effective date. In addition, the Company has an Employee Stock Purchase Plan that was suspended effective April 1, 2019 and was subsequently reinstated during the third quarter of 2020. The aggregate number of shares authorized for future issuance under the Omnibus Plan is 1,982,634 shares as of September 30, 2020.

The table below summarizes the stock-based compensation for the three and nine-months ended September 30, 2020 and 2019:


	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2020		2019		2020		2019
	(Dollars in thousands)
Stock appreciation rights	$	250	$	446	$	744	$	977
Performance-based stock awards	79		159		175		409
Restricted stock units and awards	857		719		2,283		2,184
Employee stock purchase plan	21		—		21		36
Total stock-based compensation	$	1,207	$	1,324	$	3,223	$	3,606

Performance Based Stock Awards (“PBSAs”)

The Company awards PBSAs to key officers of the Company. The performance-based shares typically cliff-vest at the end of three years based on attainment of certain performance metrics developed by the Compensation Committee. The ultimate number of shares issuable under each performance award is the product of the award target and the award payout percentage given the level of achievement. The award payout percentages by level of achievement range between 0% of target and 150% of target.

During the nine months ended September 30, 2020, the Company granted 41,283 PBSAs. The performance metrics include three year cumulative net income and return on average assets.

The following table summarizes the status of and changes in the performance-based awards:


	Performance Based Stock Awards
	Number of Shares	Weighted-Average Grant Date Fair Value
Unvested, January 1, 2020	192,248	$9.88
Granted	41,283	13.55
Vested	0	0.00
Forfeited	0	0.00
Unvested, September 30, 2020	233,531	$10.53

Unrecognized stock-based compensation related to the performance awards issued through September 30, 2020 was $531 thousand and is expected to be recognized over 2.1 years.

Restricted Stock Units (“RSUs”) and Restricted Stock Awards (“RSAs”)

The Company issues RSUs and RSAs to provide additional incentives to key officers, employees, and nonemployee directors. Awards are typically granted annually as determined by the Compensation Committee. The service based RSUs typically cliff-vest at the end of three years for awards issued prior to 2019 and vest in equal amounts over three years for all other RSUs. The service based RSAs typically cliff-vest after one year.

The following table summarizes the status of and changes in the RSUs and RSAs:


	Restricted Stock Units and Awards
	Number of Shares	Weighted-Average Grant Date Fair Value
Unvested, January 1, 2020	340,780	$15.35
Granted	293,297	11.84
Vested	(106,146)	12.58
Forfeited	(15,086)	14.54
Unvested, September 30, 2020	512,845	$13.38

Unrecognized stock-based compensation related to the RSUs and RSAs issued through September 30, 2020 was $4 million and is expected to be recognized over 1.7 years.

Income Tax

9 Months Ended

Sep. 30, 2020

Income Tax Disclosure [Abstract]

Income Tax

An income tax expense reconciliation at the statutory rate to the Company’s actual income tax expense is shown below:


	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2020		2019		2020		2019
	(Dollars in thousands)
Computed at the statutory rate (21%)	$	1,996	$	2,725	$	1,141	$	7,241
Increase (decrease) resulting from
Tax-exempt income	(766)		(722)		(2,335)		(2,147)
Nondeductible expenses	21		71		119		208
State tax credit	—		—		—		(1,361)
State income taxes	320		566		501		1,526
Equity based compensation	(15)		(5)		24		(66)
Goodwill impairment	—		—		1,553		—
Other adjustments	(58)		(43)		(75)		(93)
Actual tax expense	$	1,498	$	2,592	$	928	$	5,308

The tax effects of temporary differences related to deferred taxes shown on the consolidated Balance Sheets are presented below:



	September 30, 2020		December 31, 2019
	(Dollars in thousands)
Deferred tax assets

Allowance for loan losses	$	18,613	$	13,928
Lease incentive	322		294
Impairment of available-for-sale securities	—		493
Valuation allowance on real estate	269		—
Loan fees	3,747		2,317
Net operating loss carryover	344		339
Accrued expenses	1,485		2,131
Deferred compensation	2,776		2,444

State tax credit	2,519		3,287
Other	60		81
Total deferred tax asset	30,135		25,314
Deferred tax liability
Fair market value adjustments - trust preferred securities	(341)		(348)
Net unrealized gain on securities available-for-sale	(8,357)		(5,339)
FHLB stock basis	(1,194)		(996)
Premises and equipment	(3,150)		(3,620)
Other	(1,229)		(1,229)
Total deferred tax liability	(14,271)		(11,532)
Net deferred tax asset	$	15,864	$	13,782

CARES Act

The CARES Act, enacted on March 27, 2020 in the U.S., includes measures to assist companies, including temporary changes to income and non-income-based tax laws. As a result of the CARES Act, the Company would be able to carry back a portion of a net operating loss if incurred during 2020 to offset income from the prior year.

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References + Details

Disclosures about Fair Value of Financial Instruments

9 Months Ended

Sep. 30, 2020

Fair Value Disclosures [Abstract]

Disclosures about Fair Value of Financial Instruments

Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Fair value measurements must maximize the use of observable inputs and minimize the use of unobservable inputs. There is a hierarchy of three levels of inputs that may be used to measure fair value:

Level 1 Quoted prices in active markets for identical assets or liabilities.

Level 2 Observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.

Level 3 Unobservable inputs supported by little or no market activity and significant to the fair value of the assets or liabilities.

Recurring Measurements

The following list presents the assets and liabilities recognized in the accompanying consolidated Balance Sheets measured at fair value on a recurring basis and the level within the fair value hierarchy in which the fair value measurements fall at September 30, 2020 and December 31, 2019:

Fair Value Description

Valuation Hierarchy Level

Where Fair Value Balance Can Be Found

Available-for-Sale Securities

Where quoted market prices are available in an active market, securities are classified within Level 1 of the valuation hierarchy. If quoted market prices are not available, then fair values are estimated by using quoted prices of securities with similar characteristics or independent asset pricing services and pricing models, the inputs of which are market-based or independently sourced market parameters, including, but not limited to, yield curves, interest rates, volatilities, prepayments, defaults, cumulative loss projections and cash flows.

Level 2

Note 3: Securities

Derivatives

Fair value of the interest rate swaps is obtained from independent pricing services based on quoted market prices for similar derivative contracts.

Level 2

Note 5: Derivatives and Hedging

Nonrecurring Measurements

The following tables present assets measured at fair value on a nonrecurring basis and the level within the fair value hierarchy in which the fair value measurements fall at September 30, 2020 and December 31, 2019:


			September 30, 2020
			Fair Value Measurements Using
	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Unobservable Inputs (Level 3)
	(Dollars in thousands)
Collateral-dependent impaired loans	$	36,378	$	—	$	—	$	36,378


Foreclosed assets held-for-sale	$	2,349	$	—	$	—	$	2,349


			December 31, 2019
			Fair Value Measurements Using
	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Unobservable Inputs (Level 3)
	(Dollars in thousands)
Collateral-dependent impaired loans	$	20,889	$	—	$	—	$	20,889

Following is a description of the valuation methodologies and inputs used for assets measured at fair value on a nonrecurring basis and recognized in the accompanying consolidated Balance Sheets.

Collateral-dependent Impaired Loans, Net of ALLL

The estimated fair value of collateral-dependent impaired loans is based on the appraised fair value of the collateral, less estimated cost to sell. Collateral-dependent impaired loans are classified within Level 3 of the fair value hierarchy.

The Company considers the appraisal or evaluation as the starting point for determining fair value and then considers other factors and events in the environment that may affect the fair value. Appraisals of the collateral underlying collateral-dependent loans are obtained when the loan is determined to be collateral-dependent and subsequently as deemed necessary by the Office of the Chief Credit Officer.

Appraisals are reviewed for accuracy and consistency by the Office of the Chief Credit Officer. Appraisers are selected from the list of approved appraisers maintained by management. The appraised values are reduced by discounts to consider lack of marketability and estimated cost to sell if repayment or satisfaction of the loan is dependent on the sale of the collateral. These discounts and estimates are developed by the Office of the Chief Credit Officer by comparison to historical results.

Foreclosed Assets Held-for-Sale

The estimated fair value of foreclosed assets held-for-sale is based on the appraised fair value of the collateral, less estimated cost to sell and are classified within Level 3 of the fair value hierarchy. The Company considers the appraisal or evaluation as the starting point for determining fair value and then considers other factors and events in the environment that may affect the fair value.

Unobservable (Level 3) Inputs

The following tables present quantitative information about unobservable inputs used in nonrecurring Level 3 fair value measurements at September 30, 2020 and December 31, 2019:

September 30, 2020

Fair Value

Valuation Techniques

Unobservable Inputs

Range
(Weighted Average)

(Dollars in thousands)

Collateral-dependent impaired loans

36,378

Market comparable properties

Marketability discount

10% - 15%

(12%)

Foreclosed assets held-for-sale

2,349

Market comparable properties

Marketability discount

10%

December 31, 2019

Fair Value

Valuation Techniques

Unobservable Inputs

Range
(Weighted Average)

(Dollars in thousands)

Collateral-dependent impaired loans

20,889

Market comparable properties

Marketability discount

10% - 15%

(12%)

The following tables present the estimated fair values of the Company’s financial instruments at September 30, 2020 and December 31, 2019:


	September 30, 2020
	Carrying		Fair Value Measurements
	Amount		Level 1		Level 2		Level 3		Total
	(Dollars in thousands)
Financial Assets
Cash and cash equivalents	$	223,636	$	223,636	$	—	$	—	$	223,636
Available-for-sale securities	652,146		—		652,146		—		652,146
Loans, net of allowance for loan losses	4,401,774		—		—		4,386,027		4,386,027
Restricted equity securities	20,923		—		—		20,923		20,923
Interest receivable	19,003		—		19,003		—		19,003
Derivative assets	27,873		—		27,873		—		27,873
	$	5,345,355	$	223,636	$	699,022	$	4,406,950	$	5,329,608
Financial Liabilities
Deposits	$	4,492,549	$	754,172	$	—	$	3,784,666	$	4,538,838
Federal funds purchased and repurchase agreements	13,531		—		13,531		—		13,531
Federal Home Loan Bank advances	336,100		—		353,309		—		353,309
Other borrowings	952		—		1,897		—		1,897
Interest payable	2,550		—		2,550		—		2,550
Derivative liabilities	27,949		—		27,949		—		27,949
	$	4,873,631	$	754,172	$	399,236	$	3,784,666	$	4,938,074


	December 31, 2019
	Carrying		Fair Value Measurements
	Amount		Level 1		Level 2		Level 3		Total
	(Dollars in thousands)
Financial Assets
Cash and cash equivalents	$	187,320	$	187,320	$	—	$	—	$	187,320
Available-for-sale securities	741,634		—		741,634		—		741,634
Loans, net of allowance for loan losses	3,795,348		—		—		3,810,818		3,810,818
Restricted equity securities	17,278		—		—		17,278		17,278
Interest receivable	15,716		—		15,716		—		15,716
Derivative assets	9,838		—		9,838		—		9,838
	$	4,767,134	$	187,320	$	767,188	$	3,828,096	$	4,782,604
Financial Liabilities
Deposits	$	3,923,759	$	521,826	$	—	$	3,407,012	$	3,928,838
Federal funds purchased and repurchase agreements	14,921		—		14,921		—		14,921
Federal Home Loan Bank advances	358,743		—		357,859		—		357,859
Other borrowings	921		—		2,147		—		2,147
Interest payable	4,584		—		4,584		—		4,584
Derivative liabilities	9,907		—		9,907		—		9,907
	$	4,312,835	$	521,826	$	389,418	$	3,407,012	$	4,318,256

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Commitments and Credit Risk

9 Months Ended

Sep. 30, 2020

Commitments and Contingencies Disclosure [Abstract]

Commitments and Credit Risk

Commitments

The Company had the following commitments at September 30, 2020 and December 31, 2019:


	September 30, 2020		December 31, 2019
	(Dollars in thousands)
Commitments to originate loans	$	188,347	$	134,652
Standby letters of credit	42,204		39,035
Lines of credit	1,362,440		1,351,873
Future lease commitments	—		20,935
Total	$	1,592,991	$	1,546,495

Legal and Regulatory Proceedings	9 Months Ended
Legal and Regulatory Proceedings	Sep. 30, 2020
Commitments and Contingencies Disclosure [Abstract]
Legal and Regulatory Proceedings	Legal and Regulatory Proceedings General Litigation The Company is subject to claims and lawsuits that arise primarily in the ordinary course of business. It is the opinion of management the disposition or ultimate resolution of such claims and lawsuits will not have a material adverse effect on the consolidated financial position, results of operations and cash flows of the Company.

Subsequent Events	9 Months Ended
Subsequent Events	Sep. 30, 2020
Subsequent Events [Abstract]
Subsequent Events	Subsequent EventsOn October 20, 2020, the Company announced that its Board of Directors adopted a new stock repurchase program. Under the repurchase program, the Company may repurchase Company common stock with up to $20 million in value.

Nature of Operations and Summary of Significant Accounting Policies (Policies)

9 Months Ended

Sep. 30, 2020

Accounting Policies [Abstract]

Basis of Presentation

Use of Estimates

Cash Equivalents

Cash EquivalentsThe Company had $176 million of cash and cash equivalents at the Federal Reserve Bank of Kansas City as of September 30, 2020. The reserve required at September 30, 2020 was $0.

Loans Individually Evaluated for Impairment and Impaired Loans

Loans Individually Evaluated for Impairment

Impaired Loans

Change in Accounting Principle and Recent Accounting Pronouncements

Change in Accounting Principle

Recent Accounting Pronouncements

The Company has implemented the following ASUs during 2020:

Standard

Date of Adoption

Description

Effect on Financial Statements or Other Significant Matters

ASU 2020-04:

Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting

June 30, 2020

The Company had more than $1 billion in loans tied to LIBOR as of September 30, 2020.

ASU 2019-12:

Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes

January 1, 2020

(Early Adoption)

The amendments in the ASU did not have a material impact on the Company’s tax methodology, processes, or the Company’s financial statements.

Standard

Date of Adoption

Description

Effect on Financial Statements or Other Significant Matters

ASU 2018-13:

Fair Value Measurement (Topic 820): Disclosure Framework

January 1, 2020

ASU 2017-04:

Intangibles—Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment

January 1, 2020

(Early Adoption)

The Company provided updates to the following ASUs that have not been adopted. A complete list of recent, applicable accounting pronouncements was provided in the Company’s 2019 Form 10-K:

Standard

Anticipated Date of Adoption

Description

Effect on Financial Statements or Other Significant Matters

ASU 2016-13

Financial Instruments-Credit Losses

Standard

Anticipated Date of Adoption

Description

Effect on Financial Statements or Other Significant Matters

ASU 2016-02

Leases (Topic 842)

Changes Affecting Comparability

Allowance for Loan Losses

Non-accrual Loans

Troubled Debt Restructurings

Troubled Debt RestructuringsRestructured loans are those extended to borrowers who are experiencing financial difficulty and who have been granted a concession, excluding loan modifications as a result of the COVID-19 pandemic. The modification of terms typically includes the extension of maturity, reduction or deferment of monthly payment, or reduction of the stated interest rate.

Fair Value Measurement

Level 1 Quoted prices in active markets for identical assets or liabilities.

Level 3 Unobservable inputs supported by little or no market activity and significant to the fair value of the assets or liabilities.

Collateral-dependent Impaired Loans, Net of ALLL

Foreclosed Assets Held-for-Sale

Nature of Operations and Summary of Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2020

Accounting Policies [Abstract]

Schedule of Accounting Pronouncements Adopted and Not Yet Adopted

The Company has implemented the following ASUs during 2020:

Standard

Date of Adoption

Description

Effect on Financial Statements or Other Significant Matters

ASU 2020-04:

Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting

June 30, 2020

The Company had more than $1 billion in loans tied to LIBOR as of September 30, 2020.

ASU 2019-12:

Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes

January 1, 2020

(Early Adoption)

The amendments in the ASU did not have a material impact on the Company’s tax methodology, processes, or the Company’s financial statements.

Standard

Date of Adoption

Description

Effect on Financial Statements or Other Significant Matters

ASU 2018-13:

Fair Value Measurement (Topic 820): Disclosure Framework

January 1, 2020

ASU 2017-04:

Intangibles—Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment

January 1, 2020

(Early Adoption)

The Company provided updates to the following ASUs that have not been adopted. A complete list of recent, applicable accounting pronouncements was provided in the Company’s 2019 Form 10-K:

Standard

Anticipated Date of Adoption

Description

Effect on Financial Statements or Other Significant Matters

ASU 2016-13

Financial Instruments-Credit Losses

Standard

Anticipated Date of Adoption

Description

Effect on Financial Statements or Other Significant Matters

ASU 2016-02

Leases (Topic 842)

Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2020

Earnings Per Share [Abstract]

Schedule of Earnings (Loss) Per Share, Basic and Diluted

The following table presents the computation of basic and diluted earnings per share:


	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2020		2019		2020		2019
	(Dollars in thousands except per share data)
Earnings per Share
Net income	$	8,006	$	10,384	$	4,507	$	29,173
Less: preferred stock dividends	—		—		—		175
Net income available to common stockholders	$	8,006	$	10,384	$	4,507	$	28,998
Weighted average common shares	52,136,286		48,351,553		52,104,372		46,239,021
Earnings per share	$	0.15	$	0.22	$	0.09	$	0.63
Dilutive Earnings Per Share


Net income available to common stockholders	$	8,006	$	10,384	$	4,507	$	28,998
Weighted average common shares	52,136,286		48,351,553		52,104,372		46,239,021
Effect of dilutive shares	423,840		812,996		463,219		842,706
Weighted average dilutive common shares	52,560,126		49,164,549		52,567,591		47,081,727
Diluted earnings per share	$	0.15	$	0.21	$	0.09	$	0.61

Stock-based awards not included because to do so would be antidilutive	1,214,433		541,556		1,053,393		507,167

Securities (Tables)

9 Months Ended

Sep. 30, 2020

Investments, Debt and Equity Securities [Abstract]

Schedule of Available-for-sale Securities Reconciliation

The amortized cost and approximate fair values, together with gross unrealized gains and losses, of period end available-for-sale debt and equity securities consisted of the following:


	September 30, 2020
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Approximate Fair Value
	(Dollars in thousands)
Available-for-sale debt securities
Mortgage-backed - GSE residential	$	122,093	$	4,690	$	—	$	126,783
Collateralized mortgage obligations - GSE residential	71,735		1,271		7		72,999
State and political subdivisions	421,075		28,339		220		449,194
Corporate bonds	860		67		2		925
Total available-for-sale debt securities	615,763		34,367		229		649,901
Equity securities
Mutual funds	2,222		23		—		2,245
Total equity securities	2,222		23		—		2,245
Total available-for-sale securities	$	617,985	$	34,390	$	229	$	652,146


	December 31, 2019
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Approximate Fair Value
	(Dollars in thousands)
Available-for-sale debt securities
Mortgage-backed - GSE residential	$	151,037	$	1,668	$	193	$	152,512
Collateralized mortgage obligations - GSE residential	128,876		625		289		129,212
State and political subdivisions	436,448		19,996		104		456,340
Corporate bonds	1,321		88		—		1,409
Total available-for-sale debt securities	717,682		22,377		586		739,473
Equity securities
Mutual funds	2,190		—		29		2,161
Total equity securities	2,190		—		29		2,161
Total available-for-sale securities	$	719,872	$	22,377	$	615	$	741,634

Investments Classified by Contractual Maturity Date

The amortized cost and fair value of available-for-sale debt securities at September 30, 2020, by contractual maturity, are shown below:


	September 30, 2020
	Within			After One to			After Five to			After
	One Year			Five Years			Ten Years			Ten Years			Total
	(Dollars in thousands)
Available-for-sale debt securities
Mortgage-backed - GSE residential(1)
Amortized cost	$	—		$	55		$	199		$	121,839		$	122,093
Estimated fair value	$	—		$	58		$	213		$	126,512		$	126,783
Weighted average yield(2)	—		%	4.57		%	3.91		%	2.03		%	2.06		%
Collateralized mortgage obligations - GSE residential(1)
Amortized cost	$	—		$	—		$	2,496		$	69,239		$	71,735
Estimated fair value	$	—		$	—		$	2,735		$	70,264		$	72,999
Weighted average yield(2)	—		%	—		%	2.77		%	1.10		%	1.16		%
State and political subdivisions
Amortized cost	$	653		$	7,407		$	59,992		$	353,023		$	421,075
Estimated fair value	$	654		$	7,573		$	65,059		$	375,908		$	449,194
Weighted average yield(2)	8.02		%	5.44		%	3.52		%	3.08		%	3.19		%
Corporate bonds
Amortized cost	$	—		$	—		$	860		$	—		$	860
Estimated fair value	$	—		$	—		$	925		$	—		$	925
Weighted average yield(2)	—		%	—		%	5.57		%	—		%	5.57		%
Total available-for-sale debt securities
Amortized cost	$	653		$	7,462		$	63,547		$	544,101		$	615,763
Estimated fair value	$	654		$	7,631		$	68,932		$	572,684		$	649,901
Weighted average yield(2)	8.02		%	5.44		%	3.52		%	2.59		%	2.73		%
(1) Actual maturities may differ from contractual maturities because issuers may have the rights to call or prepay obligations with or without prepayment penalties.
(2) Yields are calculated based on amortized cost.

Schedule of Unrealized Loss on Investments


	September 30, 2020
	Less than 12 Months					12 Months or More					Total
	Fair Value		Unrealized Losses		Number of Securities	Fair Value		Unrealized Losses		Number of Securities	Fair Value		Unrealized Losses		Number of Securities
	(Dollars in thousands)
Available-for-sale debt securities
Mortgage-backed - GSE residential	$	—	$	—	—	$	—	$	—	—	$	—	$	—	—
Collateralized mortgage obligations - GSE residential	3,178		7		1	—		—		—	3,178		7		1
State and political subdivisions	14,998		220		19	26		—		1	15,024		220		20
Corporate bonds	457		2		1	—		—		—	457		2		1
Total temporarily impaired debt securities	$	18,633	$	229	21	$	26	$	—	1	$	18,659	$	229	22


	December 31, 2019
	Less than 12 Months					12 Months or More					Total
	Fair Value		Unrealized Losses		Number of Securities	Fair Value		Unrealized Losses		Number of Securities	Fair Value		Unrealized Losses		Number of Securities
	(Dollars in thousands)
Available-for-sale debt securities
Mortgage-backed - GSE residential	$	7,959	$	38	2	$	20,396	$	155	4	$	28,355	$	193	6
Collateralized mortgage obligations - GSE residential	48,980		199		7	8,622		90		9	57,602		289		16
State and political subdivisions	21,412		102		11	167		2		2	21,579		104		13
Corporate bonds	530		—		1	—		—		—	530		—		1
Total temporarily impaired debt securities	$	78,881	$	339	21	$	29,185	$	247	15	$	108,066	$	586	36

Loans and Allowance for Loan Losses ("ALLL") (Tables)

9 Months Ended

Sep. 30, 2020

Receivables [Abstract]

Category of Loans

Categories of loans at September 30, 2020 and December 31, 2019 include:


	September 30, 2020		December 31, 2019

	(Dollars in thousands)
Commercial	$	1,291,572	$	1,356,817
Energy	384,181		408,573
Commercial real estate	1,195,631		1,024,041
Construction and land development	587,617		628,418
Residential real estate	618,082		398,695
Paycheck Protection Program (“PPP”)	369,260		—


Consumer	46,771		45,163
Gross loans	4,493,114		3,861,707
Less: Allowance for loan losses	76,035		56,896
Less: Net deferred loan fees and costs	15,305		9,463
Net loans	$	4,401,774	$	3,795,348

Loans, Allowance for Loan Loss


	Commercial		Energy		Commercial Real Estate		Construction and Land Development		Residential Real Estate		PPP		Consumer		Total
	(Dollars in thousands)
Three months ended September 30, 2020
Allowance for loan losses
Beginning balance	$	26,543	$	17,372	$	16,899	$	5,019	$	4,868	$	—	$	484	$	71,185
Provision charged to expense	7,439		2,168		908		(530)		882		—		8		10,875
Charge-offs	(5,781)		—		—		—		(256)		—		—		(6,037)
Recoveries	2		—		—		—		—		—		10		12
Ending balance	$	28,203	$	19,540	$	17,807	$	4,489	$	5,494	$	—	$	502	$	76,035


	Commercial		Energy		Commercial Real Estate		Construction and Land Development		Residential Real Estate		PPP		Consumer		Total
	(Dollars in thousands)
Three months ended September 30, 2019
Allowance for loan losses
Beginning balance	$	22,975	$	7,300	$	7,533	$	2,602	$	2,138	$	—	$	304	$	42,852
Provision charged to expense	3,535		1,077		(249)		414		82		—		(9)		4,850
Charge-offs	(1,700)		(3,000)		—		—		—		—		(8)		(4,708)
Recoveries	1		—		—		—		—		—		—		1
Ending balance	$	24,811	$	5,377	$	7,284	$	3,016	$	2,220	$	—	$	287	$	42,995


	Commercial		Energy		Commercial Real Estate		Construction and Land Development		Residential Real Estate		PPP		Consumer		Total
	(Dollars in thousands)
Nine months ended September 30, 2020
Allowance for loan losses
Beginning balance	$	35,864	$	6,565	$	8,085	$	3,516	$	2,546	$	—	$	320	$	56,896
Provision charged to expense	16,210		15,253		9,722		973		3,393		—		274		45,825
Charge-offs	(23,946)		(2,278)		—		—		(445)		—		(104)		(26,773)
Recoveries	75		—		—		—		—		—		12		87
Ending balance	$	28,203	$	19,540	$	17,807	$	4,489	$	5,494	$	—	$	502	$	76,035


	Commercial		Energy		Commercial Real Estate		Construction and Land Development		Residential Real Estate		PPP		Consumer		Total
	(Dollars in thousands)
Nine months ended September 30, 2019
Allowance for loan losses
Beginning balance	$	16,584	$	10,262	$	6,755	$	2,475	$	1,464	$	—	$	286	$	37,826
Provision charged to expense	11,166		(2,461)		529		541		756		—		$	19	10,550
Charge-offs	(2,954)		(3,000)		—		—		—		—		(19)		(5,973)
Recoveries	15		576		—		—		—		—		1		592
Ending balance	$	24,811	$	5,377	$	7,284	$	3,016	$	2,220	$	—	$	287	$	42,995


	Commercial		Energy		Commercial Real Estate		Construction and Land Development		Residential Real Estate		PPP		Consumer		Total
	(Dollars in thousands)
September 30, 2020
Period end allowance for loan losses allocated to:
Individually evaluated for impairment	$	2,432	$	2,540	$	1,525	$	—	$	—	$	—	$	—	$	6,497
Collectively evaluated for impairment	$	25,771	$	17,000	$	16,282	$	4,489	$	5,494	$	—	$	502	$	69,538
Ending balance	$	28,203	$	19,540	$	17,807	$	4,489	$	5,494	$	—	$	502	$	76,035

Allocated to loans:
Individually evaluated for impairment	$	38,589	$	21,318	$	17,035	$	—	$	6,406	$	—	$	246	$	83,594
Collectively evaluated for impairment	$	1,252,983	$	362,863	$	1,178,596	$	587,617	$	611,676	$	369,260	$	46,525	$	4,409,520
Ending balance	$	1,291,572	$	384,181	$	1,195,631	$	587,617	$	618,082	$	369,260	$	46,771	$	4,493,114


	Commercial		Energy		Commercial Real Estate		Construction and Land Development		Residential Real Estate		PPP		Consumer		Total
	(Dollars in thousands)
December 31, 2019
Period end allowance for loan losses allocated to:
Individually evaluated for impairment	$	19,942	$	1,949	$	210	$	—	$	197	$	—	$	—	$	22,298
Collectively evaluated for impairment	$	15,922	$	4,616	$	7,875	$	3,516	$	2,349	$	—	$	320	$	34,598
Ending balance	$	35,864	$	6,565	$	8,085	$	3,516	$	2,546	$	—	$	320	$	56,896
Allocated to loans:
Individually evaluated for impairment	$	70,876	9,744		$	10,492	$	—	$	2,388	$	—	$	—	$	93,500
Collectively evaluated for impairment	$	1,285,941	$	398,829	$	1,013,549	$	628,418	$	396,307	$	—	$	45,163	$	3,768,207
Ending balance	$	1,356,817	$	408,573	$	1,024,041	$	628,418	$	398,695	$	—	$	45,163	$	3,861,707

Loans, Credit Quality Indicators

The following tables present the credit risk profile of the Company’s loan portfolio based on internal rating categories (grades 1 - 8), portfolio segmentation, and payment activity:



	Pass		Special Mention		Substandard Performing		Substandard Nonperforming		Doubtful		Loss		Total
	(Dollars in thousands)
September 30, 2020
Commercial	$	1,106,338	$	71,746	$	75,714	$	34,528	$	3,246	$	—	$	1,291,572
Energy	186,881		58,726		117,389		17,435		3,750		—		384,181
Commercial real estate	1,114,802		41,030		26,624		12,377		798		—		1,195,631
Construction and land development	581,160		5,299		1,158		—		—		—		587,617
Residential real estate	610,909		527		3,467		3,179		—		—		618,082
PPP	369,260		—		—		—		—		—		369,260


Consumer	46,525		—		—		246		—		—		46,771
	$	4,015,875	$	177,328	$	224,352	$	67,765	$	7,794	$	—	$	4,493,114



	Pass		Special Mention		Substandard Performing		Substandard Nonperforming		Doubtful		Loss		Total
	(Dollars in thousands)
December 31, 2019
Commercial	$	1,258,952	$	27,069	$	38,666	$	32,130	$	—	$	—	$	1,356,817
Energy	392,233		9,460		2,340		—		4,540		—		408,573
Commercial real estate	1,007,921		9,311		5,746		120		943		—		1,024,041
Construction and land development	628,418		—		—		—		—		—		628,418
Residential real estate	394,495		1,789		469		1,942		—		—		398,695
PPP	—		—		—		—		—		—		—


Consumer	45,163		—		—		—		—		—		45,163
	$	3,727,182	$	47,629	$	47,221	$	34,192	$	5,483	$	—	$	3,861,707

Loans, Past Due

The following tables present the Company’s loan portfolio aging analysis as of September 30, 2020 and December 31, 2019:


	30-59 Days Past Due		60-89 Days Past Due		90 Days or More		Total Past Due		Current		Total Loans Receivable		Loans >= 90 Days and Accruing
	(Dollars in thousands)
September 30, 2020
Commercial	$	12,274	$	28,487	$	6,641	$	47,402	$	1,244,170	$	1,291,572	$	1,141
Energy	—		1,540		3,055		4,595		379,586		384,181		—
Commercial real estate	1,459		—		4,475		5,934		1,189,697		1,195,631		—
Construction and land development	—		—		—		—		587,617		587,617		—
Residential real estate	1,591		—		6,124		7,715		610,367		618,082		3,183
PPP	—		—		—		—		369,260		369,260		—


Consumer	—		—		—		—		46,771		46,771		—
	$	15,324	$	30,027	$	20,295	$	65,646	$	4,427,468	$	4,493,114	$	4,324


	30-59 Days Past Due		60-89 Days Past Due		90 Days or More		Total Past Due		Current		Total Loans Receivable		Loans >= 90 Days and Accruing
	(Dollars in thousands)
December 31, 2019
Commercial	$	1,091	$	276	$	30,911	$	32,278	$	1,324,539	$	1,356,817	$	37
Energy	2,340		—		4,593		6,933		401,640		408,573		53
Commercial real estate	316		—		4,589		4,905		1,019,136		1,024,041		4,501
Construction and land development	196		—		—		196		628,222		628,418		—
Residential real estate	2,347		—		1,919		4,266		394,429		398,695		—
PPP	—		—		—		—		—		—		—
Consumer	2		254		—		256		44,907		45,163		—
	$	6,292	$	530	$	42,012	$	48,834	$	3,812,873	$	3,861,707	$	4,591

Loans, Impaired

The following tables present loans individually evaluated for impairment, including all restructured and formerly restructured loans, for the periods ended September 30, 2020 and December 31, 2019:


			Unpaid
	Recorded Balance		Principal Balance		Specific Allowance
	(Dollars in thousands)
September 30, 2020
Loans without a specific valuation
Commercial	$	29,439	$	35,220	$	—
Energy	—		—		—
Commercial real estate	4,628		4,628		—
Construction and land development	—		—		—
Residential real estate	6,406		6,662		—
PPP	—		—		—


Consumer	246		246		—
Loans with a specific valuation
Commercial	9,150		20,538		2,432
Energy	21,318		26,597		2,540
Commercial real estate	12,407		13,206		1,525
Construction and land development	—		—		—
Residential real estate	—		—		—
PPP	—		—		—


Consumer	—		—		—


Total
Commercial	38,589		55,758		2,432
Energy	21,318		26,597		2,540
Commercial real estate	17,035		17,834		1,525
Construction and land development	—		—		—
Residential real estate	6,406		6,662		—
PPP	—		—		—


Consumer	246		246		—
	$	83,594	$	107,097	$	6,497


			Unpaid
	Recorded Balance		Principal Balance		Specific Allowance
	(Dollars in thousands)
December 31, 2019
Loans without a specific valuation
Commercial	$	35,846	$	35,846	$	—
Energy	2,864		2,864		—
Commercial real estate	9,464		9,464		—
Construction and land development	—		—		—
Residential real estate	2,139		2,139		—
PPP	—		—		—
Consumer	—		—		—
Loans with a specific valuation
Commercial	35,030		40,030		19,942
Energy	6,880		9,880		1,949
Commercial real estate	1,028		1,028		210
Construction and land development	—		—		—
Residential real estate	249		249		197
PPP	—		—		—
Consumer	—		—		—

Total
Commercial	70,876		75,876		19,942
Energy	9,744		12,744		1,949
Commercial real estate	10,492		10,492		210
Construction and land development	—		—		—
Residential real estate	2,388		2,388		197
PPP	—		—		—
Consumer	—		—		—
	$	93,500	$	101,500	$	22,298


	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2020		2019		2020		2019
	(Dollars in thousands)
Commercial	$	12	$	386	$	841	$	862
Energy	2		98		257		324
Commercial real estate	58		200		346		613
Construction and land development	—		—		—		—
Residential real estate	36		8		108		17
PPP	—		—		—		—


Consumer	—		—		—		—
Total interest income recognized	$	108	$	692	$	1,552	$	1,816


	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2020		2019		2020		2019
	(Dollars in thousands)
Commercial	$	45,482	$	54,410	$	49,538	$	49,265
Energy	21,396		13,623		23,220		15,091
Commercial real estate	17,937		16,690		18,132		16,528
Construction and land development	—		—		—		—
Residential real estate	6,419		2,538		6,304		2,354
PPP	—		—		—		—
Consumer	248		—		253		—
Total average impaired loans	$	91,482	$	87,261	$	97,447	$	83,238

Loans, Nonaccrual

The following table presents the Company’s non-accrual loans by loan category at September 30, 2020 and December 31, 2019:



	September 30, 2020		December 31, 2019
	(Dollars in thousands)
Commercial	$	37,774	$	32,130
Energy	21,185		4,540
Commercial real estate	13,176		1,063
Construction and land development	—		—
Residential real estate	3,179		1,942
PPP	—		—
Consumer	246		—
Total non-accrual loans	$	75,560	$	39,675

Loans, Troubled Debt Restructuring


	Three Months Ended				Nine Months Ended
	September 30,		September 30,		September 30,		September 30,
	2020		2019		2020		2019
	(Dollars in thousands)
Commercial
- Interest rate reduction	$	—	$	—	$	3,171	$	—
- Reduction of monthly payment	—		—		—		994
- Extension of maturity date	—		—		—		30,005
Energy
- Extension of maturity date	—		—		2,340		—
Commercial real estate

- Reduction of monthly payment	—		—		—		3,767


Residential real estate
- Payment deferral	—		—		65		—



Total troubled debt restructurings	$	—	$	—	$	5,576	$	34,766

In addition, the balance of those loans that are in default at any time during the past twelve months at September 30, 2020 and December 31, 2019 is provided below:



	September 30, 2020					December 31, 2019
	Number of Loans	Outstanding Balance		Balance 90 days past due at any time during previous 12 months(1)		Number of Loans	Outstanding Balance		Balance 90 days past due at any time during previous 12 months(1)
	(Dollars in thousands)
Commercial	6	$	7,895	$	3,762	7	$	31,770	$	831
Energy	3	3,373		2,713		2	2,864		—
Commercial real estate	3	4,683		—		3	4,909		—
Construction and land development	—	—		—		—	—		—
Residential real estate	2	3,247		45		—	—		—
PPP	—	—		—		—	—		—
Consumer	—	—		—		—	—		—
Total troubled debt restructured loans	14	$	19,198	$	6,520	12	$	39,543	$	831
(1) Default is considered to mean 90 days or more past due as to interest or principal.

Derivatives and Hedging (Tables)

9 Months Ended

Sep. 30, 2020

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Derivative Instruments

As of September 30, 2020 and December 31, 2019, the Company had the following outstanding derivatives that were not designated as hedges in qualifying hedging relationships:



	September 30, 2020			December 31, 2019
Product	Number of Instruments	Notional Amount		Number of Instruments	Notional Amount
	(Dollars in thousands)
Back-to-back swaps	60	$	545,559	56	$	380,050

The table below presents the fair value of the Company’s derivative financial instruments and their classification on the Balance Sheet as of September 30, 2020 and December 31, 2019:


	Asset Derivatives					Liability Derivatives
	Balance Sheet	September 30,		December 31,		Balance Sheet	September 30,		December 31,
	Location	2020		2019		Location	2020		2019
	(Dollars in thousands)
Derivatives not designated as hedging instruments
Interest rate products	Other assets	$	27,873	$	9,838	Other liabilities	$	27,949	$	9,907

- Definition

Tabular disclosure of pertinent information about a derivative or group of derivatives on a disaggregated basis, such as for individual instruments, or small groups of similar instruments. May include a combination of the type of instrument, risks being hedged, notional amount, hedge designation, related hedged item, inception date, maturity date, or other relevant item.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4B
-URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624163-113959

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5580258-113959

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=121590274&loc=d3e41620-113959

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5579245-113959

Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=121590274&loc=d3e41638-113959

Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=121590274&loc=d3e41678-113959

Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=121590274&loc=d3e41641-113959

Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624171-113959

Reference 9: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5579240-113959

+ Details

Goodwill and Other Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Intangible Assets and Goodwill

The following table summarizes the change in the Company’s goodwill and CDI for the nine-months ended September 30, 2020:


	Goodwill		Core Deposit Intangible		Total Intangible Assets
	(Dollars in thousands)
Balance at December 31, 2019	$	7,397	$	297	$	7,694
Impairment	(7,397)		—		(7,397)
Amortization	—		(70)		(70)
Balance at September 30, 2020	$	—	$	227	$	227

Time Deposits and Borrowings (Tables)

9 Months Ended

Sep. 30, 2020

Maturities of Time Deposits [Abstract]

Schedule of Time Deposit Maturities and Borrowings

The scheduled maturities, excluding interest, of the Company’s borrowings at September 30, 2020 were as follows:


	September 30, 2020
	Within One Year		One to Two Years		Two to Three Years		Three to Four Years		Four to Five Years		After Five Years		Total
	(Dollars in thousands)
Time deposits	$	948,251	$	115,197	$	52,074	$	24,669	$	495	$	—	$	1,140,686
Fed funds purchased & repurchase agreements	13,531		—		—		—		—		—		13,531
FHLB borrowings	59,500		21,500		35,000		—		5,100		215,000		336,100

Trust preferred securities(1)	—		—		—		—		—		952		952
	$	1,021,282	$	136,697	$	87,074	$	24,669	$	5,595	$	215,952	$	1,491,269

(1) The contract value of the trust preferred securities is $2.6 million and is currently being accreted to the maturity date of 2035.

Change in Accumulated Other Comprehensive Income (AOCI) (Tables)

9 Months Ended

Sep. 30, 2020

Equity [Abstract]

Schedule of Accumulated Other Comprehensive Income

Amounts reclassified from AOCI and the affected line items in the consolidated Statements of Operations during the three and nine months ended September 30, 2020 and 2019, were as follows:




	Three Months Ended				Nine Months Ended
	September 30,				September 30,				Affected Line Item in the
	2020		2019		2020		2019		Statements of Operations
	(Dollars in thousands)
Unrealized gains on available-for-sale securities	$	1,012	$	34	$	1,725	$	467	Gain on sale of available-for-sale debt securities

Less: tax effect	248		9		422		115		Income tax expense
Net reclassified amount	$	764	$	25	$	1,303	$	352

Regulatory Matters (Tables)

9 Months Ended

Sep. 30, 2020

Banking Regulation, Risk-Based Information [Abstract]

Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations

The Company’s and the Bank’s actual capital amounts and ratios as of September 30, 2020 and December 31, 2019 are presented in the following table:


	Actual				Minimum Capital Required - Basel III Fully Phased-In			Required to be Considered Well Capitalized
	Amount		Ratio			Amount		Ratio		Amount		Ratio
	(Dollars in thousands)
September 30, 2020
Total Capital to Risk-Weighted Assets
Consolidated	$	652,827	13.2	%		$	518,259	10.5	%	N/A		N/A
Bank	601,491		12.2			518,063		10.5		$	493,393	10.0	%
Tier I Capital to Risk-Weighted Assets
Consolidated	590,952		12.0			419,543		8.5		N/A		N/A
Bank	539,639		10.9			419,384		8.5		394,714		8.0
Common Equity Tier 1 to Risk-Weighted Assets
Consolidated	590,000		12.0			345,506		7.0		N/A		N/A
Bank	539,639		10.9			345,375		7.0		320,706		6.5
Tier I Capital to Average Assets
Consolidated	590,952		10.8			217,932		4.0		N/A		N/A
Bank	$	539,639	9.9	%		$	217,994	4.0	%	$	272,492	5.0	%
December 31, 2019
Total Capital to Risk-Weighted Assets
Consolidated	$	633,228	13.4	%		$	495,095	10.5	%	N/A		N/A
Bank	581,600		12.3			494,954		10.5		$	471,385	10.0	%
Tier I Capital to Risk-Weighted Assets
Consolidated	576,332		12.2			400,791		8.5		N/A		N/A
Bank	524,704		11.1			400,677		8.5		377,108		8.0
Common Equity Tier 1 to Risk-Weighted Assets
Consolidated	575,411		12.2			330,063		7.0		N/A		N/A
Bank	524,704		11.1			329,970		7.0		306,400		6.5
Tier I Capital to Average Assets
Consolidated	576,332		12.1			191,099		4.0		N/A		N/A
Bank	$	524,704	11.0	%		$	191,170	4.0	%	$	238,963	5.0	%

Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2020

Share-based Payment Arrangement [Abstract]

Schedule of Stock-based Compensation

The table below summarizes the stock-based compensation for the three and nine-months ended September 30, 2020 and 2019:


	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2020		2019		2020		2019
	(Dollars in thousands)
Stock appreciation rights	$	250	$	446	$	744	$	977
Performance-based stock awards	79		159		175		409
Restricted stock units and awards	857		719		2,283		2,184
Employee stock purchase plan	21		—		21		36
Total stock-based compensation	$	1,207	$	1,324	$	3,223	$	3,606

Summary of Status and Changes in Performance-Based Awards

The following table summarizes the status of and changes in the performance-based awards:


	Performance Based Stock Awards
	Number of Shares	Weighted-Average Grant Date Fair Value
Unvested, January 1, 2020	192,248	$9.88
Granted	41,283	13.55
Vested	0	0.00
Forfeited	0	0.00
Unvested, September 30, 2020	233,531	$10.53

Summary of Status and Changes in RSUs and RSAs

The following table summarizes the status of and changes in the RSUs and RSAs:


	Restricted Stock Units and Awards
	Number of Shares	Weighted-Average Grant Date Fair Value
Unvested, January 1, 2020	340,780	$15.35
Granted	293,297	11.84
Vested	(106,146)	12.58
Forfeited	(15,086)	14.54
Unvested, September 30, 2020	512,845	$13.38

Income Tax (Tables)

9 Months Ended

Sep. 30, 2020

Income Tax Disclosure [Abstract]

Schedule of Effective Income Tax Rate Reconciliation

An income tax expense reconciliation at the statutory rate to the Company’s actual income tax expense is shown below:


	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2020		2019		2020		2019
	(Dollars in thousands)
Computed at the statutory rate (21%)	$	1,996	$	2,725	$	1,141	$	7,241
Increase (decrease) resulting from
Tax-exempt income	(766)		(722)		(2,335)		(2,147)
Nondeductible expenses	21		71		119		208
State tax credit	—		—		—		(1,361)
State income taxes	320		566		501		1,526
Equity based compensation	(15)		(5)		24		(66)
Goodwill impairment	—		—		1,553		—
Other adjustments	(58)		(43)		(75)		(93)
Actual tax expense	$	1,498	$	2,592	$	928	$	5,308

Schedule of Deferred Tax Assets and Liabilities

The tax effects of temporary differences related to deferred taxes shown on the consolidated Balance Sheets are presented below:



	September 30, 2020		December 31, 2019
	(Dollars in thousands)
Deferred tax assets

Allowance for loan losses	$	18,613	$	13,928
Lease incentive	322		294
Impairment of available-for-sale securities	—		493
Valuation allowance on real estate	269		—
Loan fees	3,747		2,317
Net operating loss carryover	344		339
Accrued expenses	1,485		2,131
Deferred compensation	2,776		2,444

State tax credit	2,519		3,287
Other	60		81
Total deferred tax asset	30,135		25,314
Deferred tax liability
Fair market value adjustments - trust preferred securities	(341)		(348)
Net unrealized gain on securities available-for-sale	(8,357)		(5,339)
FHLB stock basis	(1,194)		(996)
Premises and equipment	(3,150)		(3,620)
Other	(1,229)		(1,229)
Total deferred tax liability	(14,271)		(11,532)
Net deferred tax asset	$	15,864	$	13,782

Disclosures about Fair Value of Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2020

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis

Fair Value Description

Valuation Hierarchy Level

Where Fair Value Balance Can Be Found

Available-for-Sale Securities

Level 2

Note 3: Securities

Derivatives

Fair value of the interest rate swaps is obtained from independent pricing services based on quoted market prices for similar derivative contracts.

Level 2

Note 5: Derivatives and Hedging

Fair Value Measurements, Nonrecurring


			September 30, 2020
			Fair Value Measurements Using
	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Unobservable Inputs (Level 3)
	(Dollars in thousands)
Collateral-dependent impaired loans	$	36,378	$	—	$	—	$	36,378


Foreclosed assets held-for-sale	$	2,349	$	—	$	—	$	2,349


			December 31, 2019
			Fair Value Measurements Using
	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Unobservable Inputs (Level 3)
	(Dollars in thousands)
Collateral-dependent impaired loans	$	20,889	$	—	$	—	$	20,889

Fair Value, Assets Measured on Nonrecurring Basis, Unobservable Input Reconciliation

The following tables present quantitative information about unobservable inputs used in nonrecurring Level 3 fair value measurements at September 30, 2020 and December 31, 2019:

September 30, 2020

Fair Value

Valuation Techniques

Unobservable Inputs

Range
(Weighted Average)

(Dollars in thousands)

Collateral-dependent impaired loans

36,378

Market comparable properties

Marketability discount

10% - 15%

(12%)

Foreclosed assets held-for-sale

2,349

Market comparable properties

Marketability discount

10%

December 31, 2019

Fair Value

Valuation Techniques

Unobservable Inputs

Range
(Weighted Average)

(Dollars in thousands)

Collateral-dependent impaired loans

20,889

Market comparable properties

Marketability discount

10% - 15%

(12%)

Fair Value, by Balance Sheet Grouping

The following tables present the estimated fair values of the Company’s financial instruments at September 30, 2020 and December 31, 2019:


	September 30, 2020
	Carrying		Fair Value Measurements
	Amount		Level 1		Level 2		Level 3		Total
	(Dollars in thousands)
Financial Assets
Cash and cash equivalents	$	223,636	$	223,636	$	—	$	—	$	223,636
Available-for-sale securities	652,146		—		652,146		—		652,146
Loans, net of allowance for loan losses	4,401,774		—		—		4,386,027		4,386,027
Restricted equity securities	20,923		—		—		20,923		20,923
Interest receivable	19,003		—		19,003		—		19,003
Derivative assets	27,873		—		27,873		—		27,873
	$	5,345,355	$	223,636	$	699,022	$	4,406,950	$	5,329,608
Financial Liabilities
Deposits	$	4,492,549	$	754,172	$	—	$	3,784,666	$	4,538,838
Federal funds purchased and repurchase agreements	13,531		—		13,531		—		13,531
Federal Home Loan Bank advances	336,100		—		353,309		—		353,309
Other borrowings	952		—		1,897		—		1,897
Interest payable	2,550		—		2,550		—		2,550
Derivative liabilities	27,949		—		27,949		—		27,949
	$	4,873,631	$	754,172	$	399,236	$	3,784,666	$	4,938,074


	December 31, 2019
	Carrying		Fair Value Measurements
	Amount		Level 1		Level 2		Level 3		Total
	(Dollars in thousands)
Financial Assets
Cash and cash equivalents	$	187,320	$	187,320	$	—	$	—	$	187,320
Available-for-sale securities	741,634		—		741,634		—		741,634
Loans, net of allowance for loan losses	3,795,348		—		—		3,810,818		3,810,818
Restricted equity securities	17,278		—		—		17,278		17,278
Interest receivable	15,716		—		15,716		—		15,716
Derivative assets	9,838		—		9,838		—		9,838
	$	4,767,134	$	187,320	$	767,188	$	3,828,096	$	4,782,604
Financial Liabilities
Deposits	$	3,923,759	$	521,826	$	—	$	3,407,012	$	3,928,838
Federal funds purchased and repurchase agreements	14,921		—		14,921		—		14,921
Federal Home Loan Bank advances	358,743		—		357,859		—		357,859
Other borrowings	921		—		2,147		—		2,147
Interest payable	4,584		—		4,584		—		4,584
Derivative liabilities	9,907		—		9,907		—		9,907
	$	4,312,835	$	521,826	$	389,418	$	3,407,012	$	4,318,256

Commitments and Credit Risk (Tables)

9 Months Ended

Sep. 30, 2020

Commitments and Contingencies Disclosure [Abstract]

Schedule of Commitments

The Company had the following commitments at September 30, 2020 and December 31, 2019:


	September 30, 2020		December 31, 2019
	(Dollars in thousands)
Commitments to originate loans	$	188,347	$	134,652
Standby letters of credit	42,204		39,035
Lines of credit	1,362,440		1,351,873
Future lease commitments	—		20,935
Total	$	1,592,991	$	1,546,495

Nature of Operations and Summary of Significant Accounting Policies (Details) - USD ($)	Sep. 30, 2020	Jun. 30, 2020	Dec. 31, 2019
Financing Receivable, Credit Quality Indicator [Line Items]
Cash and cash equivalents held at the Federal Reserve Bank of Kansas City	$ 176,000,000
Required reserve	0
Loans reviewed on a collective basis	4,493,114,000		$ 3,861,707,000
Performing \| Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Loans reviewed on a collective basis	224,352,000	$ 200,000,000	$ 47,221,000
London Interbank Offered Rate (LIBOR)
Financing Receivable, Credit Quality Indicator [Line Items]
Loans tied to LIBOR	$ 1,000,000,000

Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Earnings per Share
Net income	$ 8,006	$ 10,384	$ 4,507	$ 29,173
Less: preferred stock dividends	0	0	0	175
Net income available to common stockholders	$ 8,006	$ 10,384	$ 4,507	$ 28,998
Weighted average common shares (in shares)	52,136,286	48,351,553	52,104,372	46,239,021
Earnings per share (in dollars per share)	$ 0.15	$ 0.22	$ 0.09	$ 0.63
Dilutive Earnings Per Share
Net income available to common stockholders	$ 8,006	$ 10,384	$ 4,507	$ 28,998
Weighted average common shares (in shares)	52,136,286	48,351,553	52,104,372	46,239,021
Effect of dilutive shares (in shares)	423,840	812,996	463,219	842,706
Weighted average dilutive common shares (in shares)	52,560,126	49,164,549	52,567,591	47,081,727
Diluted earnings per share (in dollars per share)	$ 0.15	$ 0.21	$ 0.09	$ 0.61
Stock-based awards not included because to do so would be antidilutive (in shares)	1,214,433	541,556	1,053,393	507,167

Securities - Amortized Cost and Fair Value of Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Available-for-sale debt securities
Total	$ 615,763	$ 717,682
Gross Unrealized Gains	34,367	22,377
Gross Unrealized Losses	229	586
Approximate Fair Value	649,901	739,473
Equity securities
Amortized Cost	2,222	2,190
Gross Unrealized Gains	23	0
Gross Unrealized Losses	0	29
Approximate Fair Value	2,245	2,161
Total available-for-sale securities
Amortized Cost	617,985	719,872
Gross Unrealized Gains	34,390	22,377
Gross Unrealized Losses	229	615
Approximate Fair Value	652,146	741,634
Mortgage-backed - GSE residential
Available-for-sale debt securities
Total	122,093	151,037
Gross Unrealized Gains	4,690	1,668
Gross Unrealized Losses	0	193
Approximate Fair Value	126,783	152,512
Collateralized mortgage obligations - GSE residential
Available-for-sale debt securities
Total	71,735	128,876
Gross Unrealized Gains	1,271	625
Gross Unrealized Losses	7	289
Approximate Fair Value	72,999	129,212
State and political subdivisions
Available-for-sale debt securities
Total	421,075	436,448
Gross Unrealized Gains	28,339	19,996
Gross Unrealized Losses	220	104
Approximate Fair Value	449,194	456,340
Corporate bonds
Available-for-sale debt securities
Total	860	1,321
Gross Unrealized Gains	67	88
Gross Unrealized Losses	2	0
Approximate Fair Value	925	1,409
Mutual funds
Equity securities
Amortized Cost	2,222	2,190
Gross Unrealized Gains	23	0
Gross Unrealized Losses	0	29
Approximate Fair Value	$ 2,245	$ 2,161

Securities - Amortized Cost and Fair Value by Maturity Date (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Amortized cost
Within one year	$ 653
After one to five years	7,462
After five to ten years	63,547
After ten years	544,101
Total	615,763	$ 717,682
Estimated fair value
Within one year	654
After one to five years	7,631
After five to ten years	68,932
After ten years	572,684
Total	$ 649,901	739,473
Weighted average yield
Within one year	8.02%
After one to five years	5.44%
After five to ten years	3.52%
After ten years	2.59%
Total	2.73%
Mortgage-backed - GSE residential
Amortized cost
Within one year	$ 0
After one to five years	55
After five to ten years	199
After ten years	121,839
Total	122,093	151,037
Estimated fair value
Within one year	0
After one to five years	58
After five to ten years	213
After ten years	126,512
Total	$ 126,783	152,512
Weighted average yield
Within one year	0.00%
After one to five years	4.57%
After five to ten years	3.91%
After ten years	2.03%
Total	2.06%
Collateralized mortgage obligations - GSE residential
Amortized cost
Within one year	$ 0
After one to five years	0
After five to ten years	2,496
After ten years	69,239
Total	71,735	128,876
Estimated fair value
Within one year	0
After one to five years	0
After five to ten years	2,735
After ten years	70,264
Total	$ 72,999	129,212
Weighted average yield
Within one year	0.00%
After one to five years	0.00%
After five to ten years	2.77%
After ten years	1.10%
Total	1.16%
State and political subdivisions
Amortized cost
Within one year	$ 653
After one to five years	7,407
After five to ten years	59,992
After ten years	353,023
Total	421,075	436,448
Estimated fair value
Within one year	654
After one to five years	7,573
After five to ten years	65,059
After ten years	375,908
Total	$ 449,194	456,340
Weighted average yield
Within one year	8.02%
After one to five years	5.44%
After five to ten years	3.52%
After ten years	3.08%
Total	3.19%
Corporate bonds
Amortized cost
Within one year	$ 0
After one to five years	0
After five to ten years	860
After ten years	0
Total	860	1,321
Estimated fair value
Within one year	0
After one to five years	0
After five to ten years	925
After ten years	0
Total	$ 925	$ 1,409
Weighted average yield
Within one year	0.00%
After one to five years	0.00%
After five to ten years	5.57%
After ten years	0.00%
Total	5.57%

Securities - Unrealized Losses (Details) $ in Thousands	Sep. 30, 2020 USD ($) security	Dec. 31, 2019 USD ($) security
Less than 12 Months
Fair Value	$ 18,633	$ 78,881
Unrealized Losses	$ 229	$ 339
Number of Securities \| security	21	21
12 Months or More
Fair Value	$ 26	$ 29,185
Unrealized Losses	$ 0	$ 247
Number of Securities \| security	1	15
Total
Fair Value	$ 18,659	$ 108,066
Unrealized Losses	$ 229	$ 586
Number of Securities \| security	22	36
Mortgage-backed - GSE residential
Less than 12 Months
Fair Value	$ 0	$ 7,959
Unrealized Losses	$ 0	$ 38
Number of Securities \| security	0	2
12 Months or More
Fair Value	$ 0	$ 20,396
Unrealized Losses	$ 0	$ 155
Number of Securities \| security	0	4
Total
Fair Value	$ 0	$ 28,355
Unrealized Losses	$ 0	$ 193
Number of Securities \| security	0	6
Collateralized mortgage obligations - GSE residential
Less than 12 Months
Fair Value	$ 3,178	$ 48,980
Unrealized Losses	$ 7	$ 199
Number of Securities \| security	1	7
12 Months or More
Fair Value	$ 0	$ 8,622
Unrealized Losses	$ 0	$ 90
Number of Securities \| security	0	9
Total
Fair Value	$ 3,178	$ 57,602
Unrealized Losses	$ 7	$ 289
Number of Securities \| security	1	16
State and political subdivisions
Less than 12 Months
Fair Value	$ 14,998	$ 21,412
Unrealized Losses	$ 220	$ 102
Number of Securities \| security	19	11
12 Months or More
Fair Value	$ 26	$ 167
Unrealized Losses	$ 0	$ 2
Number of Securities \| security	1	2
Total
Fair Value	$ 15,024	$ 21,579
Unrealized Losses	$ 220	$ 104
Number of Securities \| security	20	13
Corporate bonds
Less than 12 Months
Fair Value	$ 457	$ 530
Unrealized Losses	$ 2	$ 0
Number of Securities \| security	1	1
12 Months or More
Fair Value	$ 0	$ 0
Unrealized Losses	$ 0	$ 0
Number of Securities \| security	0	0
Total
Fair Value	$ 457	$ 530
Unrealized Losses	$ 2	$ 0
Number of Securities \| security	1	1

Securities - Narrative (Details) - USD ($) $ in Thousands	9 Months Ended
Securities - Narrative (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Sep. 30, 2019
Investments, Debt and Equity Securities [Abstract]
Gross gains on available-for-sale securities	$ 2,000	$ 506
Gross losses on available-for-sale securities	60	$ 39
Gross gains on available-for-sale- securities included an other-than-temporary impaired municipal security settled in 2020	$ 75

Loans and Allowance for Loan Losses ("ALLL") - Category of Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Jun. 30, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	$ 4,493,114		$ 3,861,707
Less: Allowance for loan losses	76,035	$ 71,185	56,896	$ 42,995	$ 42,852	$ 37,826
Less: Net deferred loan fees and costs	15,305		9,463
Net loans	4,401,774		3,795,348
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	1,291,572		1,356,817
Less: Allowance for loan losses	28,203	26,543	35,864	24,811	22,975	16,584
Energy
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	384,181		408,573
Less: Allowance for loan losses	19,540	17,372	6,565	5,377	7,300	10,262
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	1,195,631		1,024,041
Less: Allowance for loan losses	17,807	16,899	8,085	7,284	7,533	6,755
Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	587,617		628,418
Less: Allowance for loan losses	4,489	5,019	3,516	3,016	2,602	2,475
Residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	618,082		398,695
Less: Allowance for loan losses	5,494	4,868	2,546	2,220	2,138	1,464
Paycheck Protection Program (“PPP”)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	369,260		0
Less: Allowance for loan losses	0	0	0	0	0	0
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	46,771		45,163
Less: Allowance for loan losses	$ 502	$ 484	$ 320	$ 287	$ 304	$ 286

Loans and Allowance for Loan Losses ("ALLL") - Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Dec. 31, 2019
Allowance for loan losses
Beginning balance	$ 71,185	$ 42,852	$ 56,896	$ 37,826
Provision charged to expense	10,875	4,850	45,825	10,550
Charge-offs	(6,037)	(4,708)	(26,773)	(5,973)
Recoveries	12	1	87	592
Ending balance	76,035	42,995	76,035	42,995
Period end allowance for loan losses allocated to:
Individually evaluated for impairment					$ 6,497	$ 22,298
Collectively evaluated for impairment					69,538	34,598
Allowance for loan losses	71,185	42,995	56,896	37,826	76,035	56,896
Allocated to loans:
Individually evaluated for impairment					83,594	93,500
Collectively evaluated for impairment					4,409,520	3,768,207
Total Loans Receivable					4,493,114	3,861,707
Commercial
Allowance for loan losses
Beginning balance	26,543	22,975	35,864	16,584
Provision charged to expense	7,439	3,535	16,210	11,166
Charge-offs	(5,781)	(1,700)	(23,946)	(2,954)
Recoveries	2	1	75	15
Ending balance	28,203	24,811	28,203	24,811
Period end allowance for loan losses allocated to:
Individually evaluated for impairment					2,432	19,942
Collectively evaluated for impairment					25,771	15,922
Allowance for loan losses	28,203	24,811	35,864	16,584	28,203	35,864
Allocated to loans:
Individually evaluated for impairment					38,589	70,876
Collectively evaluated for impairment					1,252,983	1,285,941
Total Loans Receivable					1,291,572	1,356,817
Energy
Allowance for loan losses
Beginning balance	17,372	7,300	6,565	10,262
Provision charged to expense	2,168	1,077	15,253	(2,461)
Charge-offs	0	(3,000)	(2,278)	(3,000)
Recoveries	0	0	0	576
Ending balance	19,540	5,377	19,540	5,377
Period end allowance for loan losses allocated to:
Individually evaluated for impairment					2,540	1,949
Collectively evaluated for impairment					17,000	4,616
Allowance for loan losses	19,540	5,377	6,565	10,262	19,540	6,565
Allocated to loans:
Individually evaluated for impairment					21,318	9,744
Collectively evaluated for impairment					362,863	398,829
Total Loans Receivable					384,181	408,573
Commercial real estate
Allowance for loan losses
Beginning balance	16,899	7,533	8,085	6,755
Provision charged to expense	908	(249)	9,722	529
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Ending balance	17,807	7,284	17,807	7,284
Period end allowance for loan losses allocated to:
Individually evaluated for impairment					1,525	210
Collectively evaluated for impairment					16,282	7,875
Allowance for loan losses	17,807	7,284	8,085	6,755	17,807	8,085
Allocated to loans:
Individually evaluated for impairment					17,035	10,492
Collectively evaluated for impairment					1,178,596	1,013,549
Total Loans Receivable					1,195,631	1,024,041
Construction and land development
Allowance for loan losses
Beginning balance	5,019	2,602	3,516	2,475
Provision charged to expense	(530)	414	973	541
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Ending balance	4,489	3,016	4,489	3,016
Period end allowance for loan losses allocated to:
Individually evaluated for impairment					0	0
Collectively evaluated for impairment					4,489	3,516
Allowance for loan losses	4,489	3,016	3,516	2,475	4,489	3,516
Allocated to loans:
Individually evaluated for impairment					0	0
Collectively evaluated for impairment					587,617	628,418
Total Loans Receivable					587,617	628,418
Residential real estate
Allowance for loan losses
Beginning balance	4,868	2,138	2,546	1,464
Provision charged to expense	882	82	3,393	756
Charge-offs	(256)	0	(445)	0
Recoveries	0	0	0	0
Ending balance	5,494	2,220	5,494	2,220
Period end allowance for loan losses allocated to:
Individually evaluated for impairment					0	197
Collectively evaluated for impairment					5,494	2,349
Allowance for loan losses	5,494	2,220	2,546	1,464	5,494	2,546
Allocated to loans:
Individually evaluated for impairment					6,406	2,388
Collectively evaluated for impairment					611,676	396,307
Total Loans Receivable					618,082	398,695
Paycheck Protection Program (“PPP”)
Allowance for loan losses
Beginning balance	0	0	0	0
Provision charged to expense	0	0	0	0
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Ending balance	0	0	0	0
Period end allowance for loan losses allocated to:
Individually evaluated for impairment					0	0
Collectively evaluated for impairment					0	0
Allowance for loan losses	0	0	0	0	0	0
Allocated to loans:
Individually evaluated for impairment					0	0
Collectively evaluated for impairment					369,260	0
Total Loans Receivable					369,260	0
Consumer
Allowance for loan losses
Beginning balance	484	304	320	286
Provision charged to expense	8	(9)	274	19
Charge-offs	0	(8)	(104)	(19)
Recoveries	10	0	12	1
Ending balance	502	287	502	287
Period end allowance for loan losses allocated to:
Individually evaluated for impairment					0	0
Collectively evaluated for impairment					502	320
Allowance for loan losses	$ 502	$ 287	$ 320	$ 286	502	320
Allocated to loans:
Individually evaluated for impairment					246	0
Collectively evaluated for impairment					46,525	45,163
Total Loans Receivable					$ 46,771	$ 45,163

Loans and Allowance for Loan Losses ("ALLL") - Loan Aging Analysis (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Financing Receivable, Past Due [Line Items]
Total Past Due	$ 65,646	$ 48,834
Current	4,427,468	3,812,873
Total Loans Receivable	4,493,114	3,861,707
Loans >= 90 Days and Accruing	4,324	4,591
30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	15,324	6,292
60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	30,027	530
90 Days or More
Financing Receivable, Past Due [Line Items]
Total Past Due	20,295	42,012
Commercial
Financing Receivable, Past Due [Line Items]
Total Past Due	47,402	32,278
Current	1,244,170	1,324,539
Total Loans Receivable	1,291,572	1,356,817
Loans >= 90 Days and Accruing	1,141	37
Commercial \| 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	12,274	1,091
Commercial \| 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	28,487	276
Commercial \| 90 Days or More
Financing Receivable, Past Due [Line Items]
Total Past Due	6,641	30,911
Energy
Financing Receivable, Past Due [Line Items]
Total Past Due	4,595	6,933
Current	379,586	401,640
Total Loans Receivable	384,181	408,573
Loans >= 90 Days and Accruing	0	53
Energy \| 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	2,340
Energy \| 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	1,540	0
Energy \| 90 Days or More
Financing Receivable, Past Due [Line Items]
Total Past Due	3,055	4,593
Commercial real estate
Financing Receivable, Past Due [Line Items]
Total Past Due	5,934	4,905
Current	1,189,697	1,019,136
Total Loans Receivable	1,195,631	1,024,041
Loans >= 90 Days and Accruing	0	4,501
Commercial real estate \| 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	1,459	316
Commercial real estate \| 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Commercial real estate \| 90 Days or More
Financing Receivable, Past Due [Line Items]
Total Past Due	4,475	4,589
Construction and land development
Financing Receivable, Past Due [Line Items]
Total Past Due	0	196
Current	587,617	628,222
Total Loans Receivable	587,617	628,418
Loans >= 90 Days and Accruing	0	0
Construction and land development \| 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	196
Construction and land development \| 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Construction and land development \| 90 Days or More
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Residential real estate
Financing Receivable, Past Due [Line Items]
Total Past Due	7,715	4,266
Current	610,367	394,429
Total Loans Receivable	618,082	398,695
Loans >= 90 Days and Accruing	3,183	0
Residential real estate \| 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	1,591	2,347
Residential real estate \| 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Residential real estate \| 90 Days or More
Financing Receivable, Past Due [Line Items]
Total Past Due	6,124	1,919
Paycheck Protection Program (“PPP”)
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Current	369,260	0
Total Loans Receivable	369,260	0
Loans >= 90 Days and Accruing	0	0
Paycheck Protection Program (“PPP”) \| 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Paycheck Protection Program (“PPP”) \| 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Paycheck Protection Program (“PPP”) \| 90 Days or More
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Consumer
Financing Receivable, Past Due [Line Items]
Total Past Due	0	256
Current	46,771	44,907
Total Loans Receivable	46,771	45,163
Loans >= 90 Days and Accruing	0	0
Consumer \| 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	2
Consumer \| 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	254
Consumer \| 90 Days or More
Financing Receivable, Past Due [Line Items]
Total Past Due	$ 0	$ 0

Loans and Allowance for Loan Losses ("ALLL") - Impaired Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Recorded Balance
Total	$ 83,594	$ 93,500
Unpaid Principal Balance
Total	107,097	101,500
Specific Allowance	6,497	22,298
Commercial
Recorded Balance
Loans without a specific valuation	29,439	35,846
Loans with a specific valuation	9,150	35,030
Total	38,589	70,876
Unpaid Principal Balance
Loans without a specific valuation	35,220	35,846
Loans with a specific valuation	20,538	40,030
Total	55,758	75,876
Specific Allowance	2,432	19,942
Energy
Recorded Balance
Loans without a specific valuation	0	2,864
Loans with a specific valuation	21,318	6,880
Total	21,318	9,744
Unpaid Principal Balance
Loans without a specific valuation	0	2,864
Loans with a specific valuation	26,597	9,880
Total	26,597	12,744
Specific Allowance	2,540	1,949
Commercial real estate
Recorded Balance
Loans without a specific valuation	4,628	9,464
Loans with a specific valuation	12,407	1,028
Total	17,035	10,492
Unpaid Principal Balance
Loans without a specific valuation	4,628	9,464
Loans with a specific valuation	13,206	1,028
Total	17,834	10,492
Specific Allowance	1,525	210
Construction and land development
Recorded Balance
Loans without a specific valuation	0	0
Loans with a specific valuation	0	0
Total	0	0
Unpaid Principal Balance
Loans without a specific valuation	0	0
Loans with a specific valuation	0	0
Total	0	0
Specific Allowance	0	0
Residential real estate
Recorded Balance
Loans without a specific valuation	6,406	2,139
Loans with a specific valuation	0	249
Total	6,406	2,388
Unpaid Principal Balance
Loans without a specific valuation	6,662	2,139
Loans with a specific valuation	0	249
Total	6,662	2,388
Specific Allowance	0	197
Paycheck Protection Program (“PPP”)
Recorded Balance
Loans without a specific valuation	0	0
Loans with a specific valuation	0	0
Total	0	0
Unpaid Principal Balance
Loans without a specific valuation	0	0
Loans with a specific valuation	0	0
Total	0	0
Specific Allowance	0	0
Consumer
Recorded Balance
Loans without a specific valuation	246	0
Loans with a specific valuation	0	0
Total	246	0
Unpaid Principal Balance
Loans without a specific valuation	246	0
Loans with a specific valuation	0	0
Total	246	0
Specific Allowance	$ 0	$ 0

Loans and Allowance for Loan Losses ("ALLL") - Impaired Loan Interest Income and Average Impaired Loans (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Financing Receivable, Impaired [Line Items]
Total interest income recognized	$ 108	$ 692	$ 1,552	$ 1,816
Total average impaired loans	91,482	87,261	97,447	83,238
Commercial
Financing Receivable, Impaired [Line Items]
Total interest income recognized	12	386	841	862
Total average impaired loans	45,482	54,410	49,538	49,265
Energy
Financing Receivable, Impaired [Line Items]
Total interest income recognized	2	98	257	324
Total average impaired loans	21,396	13,623	23,220	15,091
Commercial real estate
Financing Receivable, Impaired [Line Items]
Total interest income recognized	58	200	346	613
Total average impaired loans	17,937	16,690	18,132	16,528
Construction and land development
Financing Receivable, Impaired [Line Items]
Total interest income recognized	0	0	0	0
Total average impaired loans	0	0	0	0
Residential real estate
Financing Receivable, Impaired [Line Items]
Total interest income recognized	36	8	108	17
Total average impaired loans	6,419	2,538	6,304	2,354
Paycheck Protection Program (“PPP”)
Financing Receivable, Impaired [Line Items]
Total interest income recognized	0	0	0	0
Total average impaired loans	0	0	0	0
Consumer
Financing Receivable, Impaired [Line Items]
Total interest income recognized	0	0	0	0
Total average impaired loans	$ 248	$ 0	$ 253	$ 0

Loans and Allowance for Loan Losses ("ALLL") - Non-Accrual Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Financing Receivable, Nonaccrual [Line Items]
Total non-accrual loans	$ 75,560	$ 39,675
Commercial
Financing Receivable, Nonaccrual [Line Items]
Total non-accrual loans	37,774	32,130
Energy
Financing Receivable, Nonaccrual [Line Items]
Total non-accrual loans	21,185	4,540
Commercial real estate
Financing Receivable, Nonaccrual [Line Items]
Total non-accrual loans	13,176	1,063
Construction and land development
Financing Receivable, Nonaccrual [Line Items]
Total non-accrual loans	0	0
Residential real estate
Financing Receivable, Nonaccrual [Line Items]
Total non-accrual loans	3,179	1,942
Paycheck Protection Program (“PPP”)
Financing Receivable, Nonaccrual [Line Items]
Total non-accrual loans	0	0
Consumer
Financing Receivable, Nonaccrual [Line Items]
Total non-accrual loans	$ 246	$ 0

Loans and Allowance for Loan Losses ("ALLL") - Troubled Debt Restructuring Loans (Details) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($) contract	Sep. 30, 2019 USD ($)	Dec. 31, 2019 USD ($) contract
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings	$ 0	$ 0	$ 5,576	$ 34,766
Number of Loans \| contract			14		12
Outstanding Balance	19,198		$ 19,198		$ 39,543
Balance 90 days past due at any time during previous 12 months			6,520		831
Increase in allowance for loan losses from loan restructuring			$ 3,000		$ 18,000
Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans \| contract			6		7
Outstanding Balance	7,895		$ 7,895		$ 31,770
Balance 90 days past due at any time during previous 12 months			$ 3,762		$ 831
Energy
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans \| contract			3		2
Outstanding Balance	3,373		$ 3,373		$ 2,864
Balance 90 days past due at any time during previous 12 months			$ 2,713		$ 0
Commercial real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans \| contract			3		3
Outstanding Balance	4,683		$ 4,683		$ 4,909
Balance 90 days past due at any time during previous 12 months			$ 0		$ 0
Construction and land development
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans \| contract			0		0
Outstanding Balance	0		$ 0		$ 0
Balance 90 days past due at any time during previous 12 months			$ 0		$ 0
Residential real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans \| contract			2		0
Outstanding Balance	3,247		$ 3,247		$ 0
Balance 90 days past due at any time during previous 12 months			$ 45		$ 0
Paycheck Protection Program (“PPP”)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans \| contract			0		0
Outstanding Balance	0		$ 0		$ 0
Balance 90 days past due at any time during previous 12 months			$ 0		$ 0
Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans \| contract			0		0
Outstanding Balance	0		$ 0		$ 0
Balance 90 days past due at any time during previous 12 months			0		$ 0
Interest Rate Reduction \| Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings	0	0	3,171	0
Reduction of Monthly Payment \| Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings	0	0	0	994
Reduction of Monthly Payment \| Commercial real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings	0	0	0	3,767
Extension of Maturity Date \| Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings	0	0	0	30,005
Extension of Maturity Date \| Energy
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings	0	0	2,340	0
Payment Deferral \| Residential real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings	$ 0	$ 0	$ 65	$ 0

Derivatives and Hedging - Outstanding Derivatives (Details) - Back-to-back swaps - Not Designated as Hedging Instrument $ in Thousands	Sep. 30, 2020 USD ($) derivative	Dec. 31, 2019 USD ($) derivative
Derivative [Line Items]
Number of Instruments \| derivative	60	56
Notional Amount \| $	$ 545,559	$ 380,050

Derivatives and Hedging - Fair Value of Derivatives (Details) - Not Designated as Hedging Instrument - Interest rate products - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Other assets
Derivative [Line Items]
Asset Derivatives	$ 27,873	$ 9,838
Other liabilities
Derivative [Line Items]
Liability Derivatives	$ 27,949	$ 9,907

Goodwill and Other Intangible Assets - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill impairment	$ 0	$ 0	$ 7,397	$ 0

Goodwill and Other Intangible Assets - Schedule of Intangible Assets and Goodwill (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Goodwill [Roll Forward]
Goodwill, beginning balance			$ 7,397
Goodwill impairment	$ 0	$ 0	(7,397)	$ 0
Goodwill, ending balance	0		0
Finite-lived Intangible Assets [Roll Forward]
Amortization of intangible assets			(70)
Intangible Assets, Gross (Including Goodwill) [Roll Forward]
Intangible assets, net (including goodwill), beginning balance			7,694
Goodwill and intangible asset impairment			(7,397)
Amortization of intangible assets			(70)
Intangible assets, net (including goodwill), ending balance	227		227
Core Deposit
Finite-lived Intangible Assets [Roll Forward]
Intangible assets, net (excluding goodwill), beginning balance			297
Intangible assets, impairment			0
Amortization of intangible assets			(70)
Intangible assets, net (excluding goodwill), ending balance	$ 227		227
Intangible Assets, Gross (Including Goodwill) [Roll Forward]
Amortization of intangible assets			$ (70)

Time Deposits and Borrowings (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Time deposits
Within One Year	$ 948,251
One to Two Years	115,197
Two to Three Years	52,074
Three to Four Years	24,669
Four to Five Years	495
After Five Years	0
Total	1,140,686	$ 1,239,746
Fed funds purchased & repurchase agreements	13,531	14,921
FHLB borrowings
Within One Year	59,500
One to Two Years	21,500
Two to Three Years	35,000
Three to Four Years	0
Four to Five Years	5,100
After Five Years	215,000
Total	336,100	$ 358,743
Trust preferred securities
Within One Year	0
One to Two Years	0
Two to Three Years	0
Three to Four Years	0
Four to Five Years	0
After Five Years	952
Total	952
Total
Within One Year	1,021,282
One to Two Years	136,697
Two to Three Years	87,074
Three to Four Years	24,669
Four to Five Years	5,595
After Five Years	215,952
Total	1,491,269
Contract value	$ 2,600

Change in Accumulated Other Comprehensive Income ("AOCI") (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Accumulated Other Comprehensive Income (Loss) [Line Items]
Gain on sale of available-for-sale debt securities	$ 1,012	$ 34	$ 1,725	$ 467
Income tax expense	1,498	2,592	928	5,308
Net Income	8,006	10,384	4,507	29,173
Reclassification out of Accumulated Other Comprehensive Income
Accumulated Other Comprehensive Income (Loss) [Line Items]
Gain on sale of available-for-sale debt securities	1,012	34	1,725	467
Income tax expense	248	9	422	115
Net Income	$ 764	$ 25	$ 1,303	$ 352

- Definition

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References + Details

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

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+ Details

Regulatory Matters (Details) $ in Thousands	Sep. 30, 2020 USD ($)	Dec. 31, 2019 USD ($)
Total Capital to Risk-Weighted Assets
Actual, amount	$ 652,827	$ 633,228
Actual, ratio	0.132	0.134
Tier I Capital to Risk-Weighted Assets
Actual, amount	$ 590,952	$ 576,332
Actual, ratio	0.120	0.122
Common Equity Tier 1 to Risk-Weighted Assets
Actual, amount	$ 590,000	$ 575,411
Actual, ratio	0.120	0.122
Tier I Capital to Average Assets
Actual, amount	$ 590,952	$ 576,332
Actual, ratio	0.108	0.121
Bank
Total Capital to Risk-Weighted Assets
Actual, amount	$ 601,491	$ 581,600
Actual, ratio	0.122	0.123
Required to be considered well capitalized, amount	$ 493,393	$ 471,385
Required to be considered well capitalized, ratio	0.100	0.100
Tier I Capital to Risk-Weighted Assets
Actual, amount	$ 539,639	$ 524,704
Actual, ratio	0.109	0.111
Required to be considered well capitalized, amount	$ 394,714	$ 377,108
Required to be considered well capitalized, ratio	0.080	0.080
Common Equity Tier 1 to Risk-Weighted Assets
Actual, amount	$ 539,639	$ 524,704
Actual, ratio	0.109	0.111
Required to be considered well capitalized, amount	$ 320,706	$ 306,400
Required to be considered well capitalized, ratio	6.50%	6.50%
Tier I Capital to Average Assets
Actual, amount	$ 539,639	$ 524,704
Actual, ratio	0.099	0.110
Required to be considered well capitalized, amount	$ 272,492	$ 238,963
Required to be considered well capitalized, ratio	0.050	0.050
Minimum Capital Required - Basel III Fully Phased-In
Total Capital to Risk-Weighted Assets
Minimum capital required, Basel III fully phased-in, amount	$ 518,259	$ 495,095
Minimum capital required, Basel III fully phased-in, ratio	0.105	0.105
Tier I Capital to Risk-Weighted Assets
Minimum capital required, Basel III fully phased-in, amount	$ 419,543	$ 400,791
Minimum capital required, Basel III fully phased-in, ratio	0.085	0.085
Common Equity Tier 1 to Risk-Weighted Assets
Minimum capital required, Basel III fully phased-in, amount	$ 345,506	$ 330,063
Minimum capital required, Basel III fully phased-in, ratio	7.00%	7.00%
Tier I Capital to Average Assets
Minimum capital required, Basel III fully phased-in, amount	$ 217,932	$ 191,099
Minimum capital required, Basel III fully phased-in, ratio	0.040	0.040
Minimum Capital Required - Basel III Fully Phased-In \| Bank
Total Capital to Risk-Weighted Assets
Minimum capital required, Basel III fully phased-in, amount	$ 518,063	$ 494,954
Minimum capital required, Basel III fully phased-in, ratio	0.105	0.105
Tier I Capital to Risk-Weighted Assets
Minimum capital required, Basel III fully phased-in, amount	$ 419,384	$ 400,677
Minimum capital required, Basel III fully phased-in, ratio	0.085	0.085
Common Equity Tier 1 to Risk-Weighted Assets
Minimum capital required, Basel III fully phased-in, amount	$ 345,375	$ 329,970
Minimum capital required, Basel III fully phased-in, ratio	7.00%	7.00%
Tier I Capital to Average Assets
Minimum capital required, Basel III fully phased-in, amount	$ 217,994	$ 191,170
Minimum capital required, Basel III fully phased-in, ratio	0.040	0.040

Stock-Based Compensation - Narrative (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2020 USD ($) shares
Performance Based Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	3 years
Granted (in shares)	41,283
Award performance metric period	3 years
Unrecognized compensation cost \| $	$ 531
Period for recognizing stock-based compensation expense	2 years 1 month 6 days
Performance Based Stock Awards \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award payout percentage	0.00%
Performance Based Stock Awards \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award payout percentage	150.00%
Restricted Stock Units - Issued Prior to 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	3 years
All Other Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	3 years
Restricted Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	1 year
Restricted Stock Units and Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)	293,297
Unrecognized compensation cost \| $	$ 4,000
Period for recognizing stock-based compensation expense	1 year 8 months 12 days
2018 Omnibus Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized for future issuance (in shares)	1,982,634

Stock-Based Compensation - Total Stock Based Compensation (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation	$ 1,207	$ 1,324	$ 3,223	$ 3,606
Stock appreciation rights
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation	250	446	744	977
Performance-based stock awards
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation	79	159	175	409
Restricted stock units and awards
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation	857	719	2,283	2,184
Employee stock purchase plan
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation	$ 21	$ 0	$ 21	$ 36

Stock-Based Compensation - Status and Changes in Performance-Based Awards (Details) - Performance Based Stock Awards	9 Months Ended
	Sep. 30, 2020 $ / shares shares
Number of Shares
Beginning balance (in shares) \| shares	192,248
Granted (in shares) \| shares	41,283
Vested (in shares) \| shares	0
Forfeited (in shares) \| shares	0
Ending balance (in shares) \| shares	233,531
Weighted-Average Grant Date Fair Value
Beginning balance (in dollars per share) \| $ / shares	$ 9.88
Granted (in dollars per share) \| $ / shares	13.55
Vested (in dollars per share) \| $ / shares	0.00
Forfeited (in dollars per share) \| $ / shares	0.00
Ending balance (in dollars per share) \| $ / shares	$ 10.53

Stock-Based Compensation - Status and Changes in RSUs and RSAs (Details) - Restricted Stock Units and Awards	9 Months Ended
	Sep. 30, 2020 $ / shares shares
Number of Shares
Beginning balance (in shares) \| shares	340,780
Granted (in shares) \| shares	293,297
Vested (in shares) \| shares	(106,146)
Forfeited (in shares) \| shares	(15,086)
Ending balance (in shares) \| shares	512,845
Weighted-Average Grant Date Fair Value
Beginning balance (in dollars per share) \| $ / shares	$ 15.35
Granted (in dollars per share) \| $ / shares	11.84
Vested (in dollars per share) \| $ / shares	12.58
Forfeited (in dollars per share) \| $ / shares	14.54
Ending balance (in dollars per share) \| $ / shares	$ 13.38

Income Tax - Effective Income Tax Reconciliation (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income Tax Disclosure [Abstract]
Computed at the statutory rate (21%)	$ 1,996	$ 2,725	$ 1,141	$ 7,241
Increase (decrease) resulting from
Tax-exempt income	(766)	(722)	(2,335)	(2,147)
Nondeductible expenses	21	71	119	208
State tax credit	0	0	0	(1,361)
State income taxes	320	566	501	1,526
Equity based compensation	(15)	(5)	24	(66)
Goodwill impairment	0	0	1,553	0
Other adjustments	(58)	(43)	(75)	(93)
Income tax expense	$ 1,498	$ 2,592	$ 928	$ 5,308

Income Tax - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Deferred tax assets
Allowance for loan losses	$ 18,613	$ 13,928
Lease incentive	322	294
Impairment of available-for-sale securities	0	493
Valuation allowance on real estate	269	0
Loan fees	3,747	2,317
Net operating loss carryover	344	339
Accrued expenses	1,485	2,131
Deferred compensation	2,776	2,444
State tax credit	2,519	3,287
Other	60	81
Total deferred tax asset	30,135	25,314
Deferred tax liability
Fair market value adjustments - trust preferred securities	(341)	(348)
Net unrealized gain on securities available-for-sale	(8,357)	(5,339)
FHLB stock basis	(1,194)	(996)
Premises and equipment	(3,150)	(3,620)
Other	(1,229)	(1,229)
Total deferred tax liability	(14,271)	(11,532)
Net deferred tax asset	$ 15,864	$ 13,782

Disclosures about Fair Value of Financial Instruments - Nonrecurring Measurements (Details) - Fair Value, Nonrecurring - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent impaired loans	$ 36,378	$ 20,889
Foreclosed assets held-for-sale	2,349
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent impaired loans	0	0
Foreclosed assets held-for-sale	0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent impaired loans	0	0
Foreclosed assets held-for-sale	0
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent impaired loans	36,378	$ 20,889
Foreclosed assets held-for-sale	$ 2,349

Disclosures about Fair Value of Financial Instruments - Unobservable Inputs (Details) - Fair Value, Nonrecurring $ in Thousands	Sep. 30, 2020 USD ($)	Dec. 31, 2019 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent impaired loans	$ 36,378	$ 20,889
Foreclosed assets held-for-sale	2,349
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent impaired loans	36,378	$ 20,889
Foreclosed assets held-for-sale	$ 2,349
Level 3 \| Marketability discount \| Market comparable properties
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreclosed assets held-for-sale, measurement input	0.10
Level 3 \| Marketability discount \| Market comparable properties \| Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent impaired loans, measurement input	0.10	0.10
Level 3 \| Marketability discount \| Market comparable properties \| Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent impaired loans, measurement input	0.15	0.15
Level 3 \| Marketability discount \| Market comparable properties \| Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent impaired loans, measurement input	0.12	0.12

Disclosures about Fair Value of Financial Instruments - Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Financial Assets
Available-for-sale securities	$ 649,901	$ 739,473
Restricted equity securities	20,923	17,278
Carrying Amount
Financial Assets
Cash and cash equivalents	223,636	187,320
Available-for-sale securities	652,146	741,634
Loans, net of allowance for loan losses	4,401,774	3,795,348
Restricted equity securities	20,923	17,278
Interest receivable	19,003	15,716
Derivative assets	27,873	9,838
Total financial assets	5,345,355	4,767,134
Financial Liabilities
Deposits	4,492,549	3,923,759
Federal funds purchased and repurchase agreements	13,531	14,921
Federal Home Loan Bank advances	336,100	358,743
Other borrowings	952	921
Interest payable	2,550	4,584
Derivative liabilities	27,949	9,907
Total financial liabilities	4,873,631	4,312,835
Estimate of Fair Value Measurement
Financial Assets
Cash and cash equivalents	223,636	187,320
Available-for-sale securities	652,146	741,634
Loans, net of allowance for loan losses	4,386,027	3,810,818
Restricted equity securities	20,923	17,278
Interest receivable	19,003	15,716
Derivative assets	27,873	9,838
Total financial assets	5,329,608	4,782,604
Financial Liabilities
Deposits	4,538,838	3,928,838
Federal funds purchased and repurchase agreements	13,531	14,921
Federal Home Loan Bank advances	353,309	357,859
Other borrowings	1,897	2,147
Interest payable	2,550	4,584
Derivative liabilities	27,949	9,907
Total financial liabilities	4,938,074	4,318,256
Estimate of Fair Value Measurement \| Level 1
Financial Assets
Cash and cash equivalents	223,636	187,320
Available-for-sale securities	0	0
Loans, net of allowance for loan losses	0	0
Restricted equity securities	0	0
Interest receivable	0	0
Derivative assets	0	0
Total financial assets	223,636	187,320
Financial Liabilities
Deposits	754,172	521,826
Federal funds purchased and repurchase agreements	0	0
Federal Home Loan Bank advances	0	0
Other borrowings	0	0
Interest payable	0	0
Derivative liabilities	0	0
Total financial liabilities	754,172	521,826
Estimate of Fair Value Measurement \| Level 2
Financial Assets
Cash and cash equivalents	0	0
Available-for-sale securities	652,146	741,634
Loans, net of allowance for loan losses	0	0
Restricted equity securities	0	0
Interest receivable	19,003	15,716
Derivative assets	27,873	9,838
Total financial assets	699,022	767,188
Financial Liabilities
Deposits	0	0
Federal funds purchased and repurchase agreements	13,531	14,921
Federal Home Loan Bank advances	353,309	357,859
Other borrowings	1,897	2,147
Interest payable	2,550	4,584
Derivative liabilities	27,949	9,907
Total financial liabilities	399,236	389,418
Estimate of Fair Value Measurement \| Level 3
Financial Assets
Cash and cash equivalents	0	0
Available-for-sale securities	0	0
Loans, net of allowance for loan losses	4,386,027	3,810,818
Restricted equity securities	20,923	17,278
Interest receivable	0	0
Derivative assets	0	0
Total financial assets	4,406,950	3,828,096
Financial Liabilities
Deposits	3,784,666	3,407,012
Federal funds purchased and repurchase agreements	0	0
Federal Home Loan Bank advances	0	0
Other borrowings	0	0
Interest payable	0	0
Derivative liabilities	0	0
Total financial liabilities	$ 3,784,666	$ 3,407,012

Commitments and Credit Risk (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Loss Contingencies [Line Items]
Total commitments	$ 1,592,991	$ 1,546,495
Commitments to originate loans
Loss Contingencies [Line Items]
Total commitments	188,347	134,652
Standby letters of credit
Loss Contingencies [Line Items]
Total commitments	42,204	39,035
Lines of credit
Loss Contingencies [Line Items]
Total commitments	1,362,440	1,351,873
Future lease commitments
Loss Contingencies [Line Items]
Total commitments	$ 0	$ 20,935

Subsequent Events (Details)	Oct. 20, 2020 USD ($)
Subsequent Event
Subsequent Event [Line Items]
Stock repurchase program, authorized amount	$ 20,000,000