10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C.  20549

FORM 10-Q

(Mark One)

☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2021

OR

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from _____ to _____

 Commission File Number 000-06253

SIMMONS FIRST NATIONAL CORPORATION

(Exact name of registrant as specified in its charter)

Arkansas	71-0407808
(State or other jurisdiction of	(I.R.S. Employer
incorporation or organization)	Identification No.)
501 Main Street	71601
Pine Bluff	(Zip Code)
Arkansas
(Address of principal executive offices)

 (870) 541-1000

(Registrant’s telephone number, including area code)

Not Applicable

(Former name, former address and former fiscal year, if changed since last report) 

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common stock, par value $0.01 per share	SFNC	The Nasdaq Global Select Market

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    ☒ Yes   ☐ No

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).   ☒ Yes   ☐ No

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer	☒	Accelerated filer	☐	Non-accelerated filer	☐
Smaller reporting company	☐	Emerging Growth company	☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act.).  ☐ Yes   ☒ No

The number of shares outstanding of the Registrant’s Common Stock as of November 3, 2021, was 114,829,584.

Simmons First National Corporation

Quarterly Report on Form 10-Q

September 30, 2021

Table of Contents

		Page
Part I:	Financial Information
Item 1.	Financial Statements (Unaudited)
	Consolidated Balance Sheets	3
	Consolidated Statements of Income	4
	Consolidated Statements of Comprehensive Income (Loss)	5
	Consolidated Statements of Cash Flows	6
	Consolidated Statements of Stockholders' Equity	7
	Condensed Notes to Consolidated Financial Statements	9
	Report of Independent Registered Public Accounting Firm	49
Item 2.	Management's Discussion and Analysis of Financial Condition and Results of Operations	50
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	78
Item 4.	Controls and Procedures	80
Part II:	Other Information
Item 1.	Legal Proceedings	80
Item 1A.	Risk Factors	80
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	80
Item 3.	Defaults Upon Senior Securities	*
Item 4.	Mine Safety Disclosures	*
Item 5.	Other Information	*
Item 6.	Exhibits	81
Signatures		83

___________________

*    No reportable information under this item.

Part I:    Financial Information

Item 1.    Financial Statements (Unaudited)

Simmons First National Corporation

Consolidated Balance Sheets

September 30, 2021 and December 31, 2020

	September 30,		December 31,
(In thousands, except share data)	2021		2020
	(Unaudited)
ASSETS
Cash and non-interest bearing balances due from banks	$	225,500	$	217,499
Interest bearing balances due from banks and federal funds sold	1,555,913		3,254,653
Cash and cash equivalents	1,781,413		3,472,152
Interest bearing balances due from banks - time	1,780		1,579
Investment securities:
Held-to-maturity, net of allowance for credit losses of $1,279 and $2,915 at September 30, 2021 and December 31, 2020, respectively	1,516,797		333,031
Available-for-sale, net of allowance for credit losses of $0 and $312 at September 30, 2021 and December 31, 2020, respectively (amortized cost of $6,852,465 and $3,397,043 at September 30, 2021 and December 31, 2020, respectively)	6,822,203		3,473,598
Total investments	8,339,000		3,806,629
Mortgage loans held for sale	34,628		137,378
Loans	10,825,227		12,900,897
Allowance for credit losses on loans	(202,508)		(238,050)
Net loans	10,622,719		12,662,847
Premises and equipment	463,924		441,692
Premises held for sale	—		15,008
Foreclosed assets and other real estate owned	11,759		18,393
Interest receivable	68,405		72,597
Bank owned life insurance	421,762		255,630
Goodwill	1,075,305		1,075,305
Other intangible assets	100,428		111,110
Other assets	304,807		289,432
Total assets	$	23,225,930	$	22,359,752
LIABILITIES AND STOCKHOLDERS’ EQUITY
Deposits:
Non-interest bearing transaction accounts	$	4,918,845	$	4,482,091
Interest bearing transaction accounts and savings deposits	10,697,451		9,672,608
Time deposits	2,455,774		2,832,327
Total deposits	18,072,070		16,987,026
Federal funds purchased and securities sold under agreements to repurchase	217,276		299,111
Other borrowings	1,338,585		1,342,067
Subordinated notes and debentures	383,278		382,874
Other liabilities held for sale	—		154,620
Accrued interest and other liabilities	184,190		217,398
Total liabilities	20,195,399		19,383,096
Stockholders’ equity:
Preferred stock, 40,040,000 shares authorized; Series D, $0.01 par value, $1,000 liquidation value per share; 767 shares issued and outstanding at September 30, 2021 and December 31, 2020	767		767
Common stock, Class A, $0.01 par value; 175,000,000 shares authorized at September 30, 2021 and December 31, 2020; 106,603,231 and 108,077,662 shares issued and outstanding at September 30, 2021 and December 31, 2020, respectively	1,066		1,081
Surplus	1,974,561		2,014,076
Undivided profits	1,065,566		901,006
Accumulated other comprehensive (loss) income	(11,429)		59,726
Total stockholders’ equity	3,030,531		2,976,656
Total liabilities and stockholders’ equity	$	23,225,930	$	22,359,752

See Condensed Notes to Consolidated Financial Statements.

3

Simmons First National Corporation

Consolidated Statements of Income

Three and Nine Months Ended September 30, 2021 and 2020

	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands, except per share data)	2021		2020		2021		2020
	(Unaudited)				(Unaudited)
INTEREST INCOME
Loans, including fees	$	132,216	$	163,180	$	417,444	$	527,656
Interest bearing balances due from banks and federal funds sold	763		623		2,212		3,667
Investment securities	30,717		14,910		79,418		47,326
Mortgage loans held for sale	230		1,012		1,255		1,961
TOTAL INTEREST INCOME	163,926		179,725		500,329		580,610
INTEREST EXPENSE
Deposits	9,116		16,206		33,077		65,489
Federal funds purchased and securities sold under agreements to repurchase	70		335		507		1,431
Other borrowings	4,893		4,943		14,592		14,783
Subordinated notes and debentures	4,610		4,631		13,702		14,133
TOTAL INTEREST EXPENSE	18,689		26,115		61,878		95,836
NET INTEREST INCOME	145,237		153,610		438,451		484,774
Provision for credit losses	(19,890)		22,981		(31,396)		68,030
NET INTEREST INCOME AFTER PROVISION FOR CREDIT LOSSES	165,127		130,629		469,847		416,744
NON-INTEREST INCOME
Trust income	7,145		6,744		21,049		21,148
Service charges on deposit accounts	11,557		10,385		31,322		32,283
Other service charges and fees	1,964		1,764		5,934		4,841
Mortgage lending income	5,818		13,971		16,755		31,476
SBA lending income	191		304		718		845
Investment banking income	732		557		2,081		2,005
Debit and credit card fees	7,102		6,478		20,785		18,296
Bank owned life insurance income	2,573		1,591		6,134		4,334
Gain on sale of securities, net	5,248		22,305		15,846		54,790
Other income	6,220		5,380		24,590		27,990
TOTAL NON-INTEREST INCOME	48,550		69,479		145,214		198,008
NON-INTEREST EXPENSE
Salaries and employee benefits	61,902		61,144		182,503		186,712
Occupancy expense, net	9,361		9,647		27,764		28,374
Furniture and equipment expense	4,895		6,231		15,169		18,098
Other real estate and foreclosure expense	339		602		1,545		1,201
Deposit insurance	1,870		2,244		4,865		7,557
Merger related costs	1,401		902		2,320		3,800
Other operating expenses	34,565		35,807		107,826		113,154
TOTAL NON-INTEREST EXPENSE	114,333		116,577		341,992		358,896
INCOME BEFORE INCOME TAXES	99,344		83,531		273,069		255,856
Provision for income taxes	18,770		17,633		50,151		53,920
NET INCOME	80,574		65,898		222,918		201,936
Preferred stock dividends	13		13		39		39
NET INCOME AVAILABLE TO COMMON STOCKHOLDERS	$	80,561	$	65,885	$	222,879	$	201,897
BASIC EARNINGS PER SHARE	$	0.75	$	0.60	$	2.06	$	1.83
DILUTED EARNINGS PER SHARE	$	0.74	$	0.60	$	2.05	$	1.83

See Condensed Notes to Consolidated Financial Statements.

4

Simmons First National Corporation

Consolidated Statements of Comprehensive Income (Loss)

Three and Nine Months Ended September 30, 2021 and 2020

	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands)	2021		2020		2021		2020
	(Unaudited)				(Unaudited)
NET INCOME	$	80,574	$	65,898	$	222,918	$	201,936
OTHER COMPREHENSIVE INCOME (LOSS)
Unrealized holding gains (losses) arising during the period on available-for-sale securities	(41,398)		4,975		(95,313)		82,703
Less: Reclassification adjustment for realized gains included in net income	5,248		22,305		15,846		54,790
Less: Realized loss on available-for-sale securities interest rate hedges	(13,722)		—		(13,722)		—
Amortization of securities transferred from available for sale to held to maturity	1,106		—		1,106		—
Other comprehensive income (loss), before tax effect	(31,818)		(17,330)		(96,331)		27,913
Less: Tax effect of other comprehensive income (loss)	(8,316)		(4,529)		(25,176)		7,295
TOTAL OTHER COMPREHENSIVE INCOME (LOSS)	(23,502)		(12,801)		(71,155)		20,618
COMPREHENSIVE INCOME	$	57,072	$	53,097	$	151,763	$	222,554

See Condensed Notes to Consolidated Financial Statements.

5

Simmons First National Corporation

Consolidated Statements of Cash Flows

Nine Months Ended September 30, 2021 and 2020

(In thousands)	September 30, 2021		September 30, 2020
	(Unaudited)
OPERATING ACTIVITIES
Net income	$	222,918	$	201,936
Adjustments to reconcile net income to net cash (used in) provided by operating activities:
Depreciation and amortization	35,396		36,590
Provision for credit losses	(31,396)		68,030
Gain on sale of investments	(15,846)		(54,790)
Net accretion of investment securities and assets	(36,929)		(43,286)
Net amortization on borrowings	404		406
Stock-based compensation expense	12,591		10,750
Gain on sale of premises held for sale	(591)		(33)
Gain on sale of foreclosed assets held for sale	(76)		(475)
Gain on sale of mortgage loans held for sale	(29,222)		(28,994)
Gain on sale of other intangibles	—		(301)
Gain on sale of banking operations	(5,316)		(8,094)
Fair value write-down of closed branches	—		1,465
Deferred income taxes	3,585		2,920
Income from bank owned life insurance	(6,229)		(4,983)
Originations of mortgage loans held for sale	(752,480)		(851,356)
Proceeds from sale of mortgage loans held for sale	884,452		745,723
Changes in assets and liabilities:
Interest receivable	4,191		(15,601)
Other assets	(22,677)		(7,009)
Accrued interest and other liabilities	(41,674)		43,696
Income taxes payable	(1,199)		(20,206)
Net cash provided by operating activities	219,902		76,388
INVESTING ACTIVITIES
Net change in loans	2,056,058		243,826
Proceeds from sale of loans	26,472		32,742
Net change in due from banks - time	(201)		493
Purchases of premises and equipment, net	(36,832)		(22,697)
Proceeds from sale of premises held for sale	5,621		123
Proceeds from sale of foreclosed assets held for sale	14,594		9,705
Proceeds from sale of available-for-sale securities	342,577		1,717,364
Proceeds from maturities of available-for-sale securities	559,259		2,218,259
Purchases of available-for-sale securities	(4,786,533)		(3,169,534)
Proceeds from maturities of held-to-maturity securities	13,804		10,520
Purchases of held-to-maturity securities	(694,734)		(16,997)
Purchases of bank owned life insurance	(160,000)		—
Proceeds from bank owned life insurance death benefits	3,814		1,425
Disposition of assets and liabilities held for sale	(134,166)		181,271
Net cash (used in) provided by investing activities	(2,790,267)		1,206,500
FINANCING ACTIVITIES
Net change in deposits	1,075,422		191,714
Repayments of subordinated debentures	—		(5,927)
Dividends paid on preferred stock	(39)		(39)
Dividends paid on common stock	(58,319)		(56,141)
Net change in other borrowed funds	(3,482)		45,170
Net change in federal funds purchased and securities sold under agreements to repurchase	(81,835)		163,549
Net shares issued (cancelled) under stock compensation plans	1,222		(3,355)
Shares issued under employee stock purchase plan	1,170		956
Repurchases of common stock	(54,513)		(93,307)
Net cash provided by financing activities	879,626		242,620
(DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS	(1,690,739)		1,525,508
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	3,472,152		996,623
CASH AND CASH EQUIVALENTS, END OF PERIOD	$	1,781,413	$	2,522,131

See Condensed Notes to Consolidated Financial Statements.

6

Simmons First National Corporation

Consolidated Statements of Stockholders’ Equity

Three Months Ended September 30, 2021 and 2020

(In thousands, except share data)	Preferred Stock		Common Stock		Surplus		Accumulated Other Comprehensive (Loss) Income		Undivided Profits		Total
Three Months Ended September 30, 2021
Balance, June 30, 2021 (Unaudited)	$	767	$	1,084	$	2,021,128	$	12,073	$	1,004,314	$	3,039,366
Comprehensive income	—		—		—		(23,502)		80,574		57,072
Stock-based compensation plans, net – 22,767 shares	—		—		4,848		—		—		4,848
Stock repurchases – 1,806,205 shares	—		(18)		(51,415)		—		—		(51,433)
Dividends on preferred stock	—		—		—		—		(13)		(13)
Dividends on common stock – $0.18 per share	—		—		—		—		(19,309)		(19,309)
Balance, September 30, 2021 (Unaudited)	$	767	$	1,066	$	1,974,561	$	(11,429)	$	1,065,566	$	3,030,531
Three Months Ended September 30, 2020
Balance, June 30, 2020 (Unaudited)	$	767	$	1,090	$	2,029,383	$	54,310	$	819,153	$	2,904,703
Comprehensive income	—		—		—		(12,801)		65,898		53,097
Stock-based compensation plans, net – 29,392 shares	—		—		2,989		—		—		2,989
Dividends on preferred stock	—		—		—		—		(13)		(13)
Dividends on common stock – $0.17 per share	—		—		—		—		(18,535)		(18,535)
Balance, September 30, 2020 (Unaudited)	$	767	$	1,090	$	2,032,372	$	41,509	$	866,503	$	2,942,241

See Condensed Notes to Consolidated Financial Statements.

7

Simmons First National Corporation

Consolidated Statements of Stockholders’ Equity

Nine Months Ended September 30, 2021 and 2020

(In thousands, except share data)	Preferred Stock		Common Stock		Surplus		Accumulated Other Comprehensive (Loss) Income		Undivided Profits		Total
Nine Months Ended September 30, 2021
Balance, December 31, 2020	$	767	$	1,081	$	2,014,076	$	59,726	$	901,006	$	2,976,656
Comprehensive (loss) income	—		—		—		(71,155)		222,918		151,763
Stock issued for employee stock purchase plan – 60,697 shares	—		1		1,169		—		—		1,170
Stock-based compensation plans, net – 401,993 shares	—		3		13,810		—		—		13,813
Stock repurchases – 1,937,121 shares	—		(19)		(54,494)		—		—		(54,513)
Dividends on preferred stock	—		—		—		—		(39)		(39)
Dividends on common stock – $0.54 per share	—		—		—		—		(58,319)		(58,319)
Balance, September 30, 2021 (Unaudited)	$	767	$	1,066	$	1,974,561	$	(11,429)	$	1,065,566	$	3,030,531
Nine Months Ended September 30, 2020
Balance, December 31, 2019	$	767	$	1,136	$	2,117,282	$	20,891	$	848,848	$	2,988,924
Impact of ASU 2016-13 adoption	—		—		—		—		(128,101)		(128,101)
Comprehensive income	—		—		—		20,618		201,936		222,554
Stock issued for employee stock purchase plan – 43,681 shares	—		1		955		—		—		956
Stock-based compensation plans, net – 273,835 shares	—		2		7,393		—		—		7,395
Stock repurchases – 4,922,336 shares	—		(49)		(93,258)		—		—		(93,307)
Dividends on preferred stock	—		—		—		—		(39)		(39)
Dividends on common stock – $0.51 per share	—		—		—		—		(56,141)		(56,141)
Balance, September 30, 2020 (Unaudited)	$	767	$	1,090	$	2,032,372	$	41,509	$	866,503	$	2,942,241

See Condensed Notes to Consolidated Financial Statements.

8

SIMMONS FIRST NATIONAL CORPORATION

CONDENSED NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

NOTE 1: PREPARATION OF INTERIM FINANCIAL STATEMENTS

Description of Business and Organizational Structure

Simmons First National Corporation (“Company”) is a Mid-South financial holding company headquartered in Pine Bluff, Arkansas, and the parent company of Simmons Bank, an Arkansas state-chartered bank that has been in operation since 1903 (“Simmons Bank” or the “Bank”). Simmons First Insurance Services, Inc. and Simmons First Insurance Services of TN, LLC are wholly-owned subsidiaries of Simmons Bank and are insurance agencies that offer various lines of personal and corporate insurance coverage to individual and commercial customers. The Company, through its subsidiaries, offers, among other things, consumer, real estate and commercial loans; checking, savings and time deposits; and specialized products and services (such as credit cards, trust and fiduciary services, investments, agricultural finance lending, equipment lending, insurance and Small Business Administration (“SBA”) lending) from approximately 185 financial centers as of September 30, 2021, located throughout market areas in Arkansas, Kansas, Missouri, Oklahoma, Tennessee and Texas.

Basis of Presentation

The accompanying unaudited consolidated financial statements have been prepared based upon Securities and Exchange Commission (“SEC”) rules that permit reduced disclosures for interim periods. Certain information and footnote disclosures have been condensed or omitted in accordance with those rules and regulations. The accompanying consolidated balance sheet as of December 31, 2020, was derived from audited financial statements. In the opinion of management, these financial statements reflect all adjustments that are necessary for a fair presentation of interim results of operations, including normal recurring accruals. Significant intercompany accounts and transactions have been eliminated in consolidation. The results for the interim periods are not necessarily indicative of results for the full year. For a more complete discussion of significant accounting policies and certain other information, this report should be read in conjunction with the consolidated financial statements and accompanying notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2020, which was filed with the SEC on February 25, 2021.

The preparation of financial statements, in accordance with accounting principles generally accepted in the United States (“US GAAP”), requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, income items and expenses and disclosure of contingent assets and liabilities. The estimates and assumptions used in the accompanying consolidated financial statements are based upon management’s evaluation of the relevant facts and circumstances as of the date of the consolidated financial statements and actual results may differ from these estimates. Such estimates include, but are not limited to, the Company’s allowance for credit losses.

Material estimates that are particularly susceptible to significant change relate to the determination of the allowance for credit losses, the valuation of real estate acquired in connection with foreclosures or in satisfaction of loans and the valuation of acquired loans. Management obtains independent appraisals for significant properties in connection with the determination of the allowance for credit losses and the valuation of foreclosed assets.

During the second and third quarters of 2021, certain debit and credit card transaction fees were reclassified from non-interest expense to non-interest income. These transaction fees, as well as additional certain prior year amounts, have been reclassified to conform to the current year financial statement presentation. These changes and reclassifications did not impact previously reported net income or comprehensive income. 

Recently Adopted Accounting Standards

Reference Rate Reform – In March 2020, the Financial Accounting Standards Board (“FASB”) issued Accounting Standard Update (“ASU”) No. 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting (“ASU 2020-04”), which provides relief for companies preparing for discontinuation of interest rates such as the London Interbank Offered Rate (“LIBOR”). LIBOR is a benchmark interest rate referenced in a variety of agreements that are used by numerous entities. On March 5, 2021, the U.K. Financial Conduct Authority (“FCA”) announced that the majority of LIBOR rates will no longer be published after December 31, 2021, although a number of key settings will continue until June

9

2023, to support the rundown of legacy contracts only. As a result, LIBOR should be discontinued as a reference rate. Other interest rates used globally could also be discontinued for similar reasons. ASU 2020-04 provides optional expedients and exceptions to contracts, hedging relationships and other transactions affected by reference rate reform. The main provisions for contract modifications include optional relief by allowing the modification as a continuation of the existing contract without additional analysis and other optional expedients regarding embedded features. Optional expedients for hedge accounting permits changes to critical terms of hedging relationships and to the designated benchmark interest rate in a fair value hedge and also provides relief for assessing hedge effectiveness for cash flow hedges. Companies are able to apply ASU 2020-04 immediately; however, the guidance will only be available for a limited time (generally through December 31, 2022). The Company formed a LIBOR Transition Team in 2020, has created standard LIBOR replacement language for new and modified loan notes, and is monitoring the remaining loans with LIBOR rates monthly to ensure progress in updating these loans with acceptable LIBOR replacement language or converting them to other interest rates. The Company has not been offering LIBOR-indexed rates originated by other banks, subject to the Company’s determination that the LIBOR replacement language in the loan documents meets the Company’s standards. Pursuant to the Interagency Statement on LIBOR Transition issued in November 2020, the Company will not enter into any new LIBOR-based credit agreements after December 31, 2021. The adoption of ASU 2020-04 has not had a material impact on the Company’s financial position or results of operations.

In January 2021, the FASB issued ASU No. 2021-01, Reference Rate Reform (Topic 848): Scope (“ASU 2021-01”), which clarifies that certain optional expedients and exceptions in Accounting Standard Codification (“ASC”) 848 for contract modifications and hedge accounting apply to derivatives that are affected by the changes in the interest rates used for margining, discounting, or contract price alignment for derivative instruments that are being implemented as part of the market-wide transition to new reference rates (commonly referred to as the “discounting transition”). ASU 2021-01 also amends the expedients and exceptions in ASC 848 to capture the incremental consequences of the scope clarification and to tailor the existing guidance to derivative instruments affected by the discounting transition. ASU 2021-01 was effective upon issuance and generally can be applied through December 31, 2022. ASU 2021-01 did not have a material impact on the Company’s financial position or results of operations.

Income Taxes – In December 2019, the FASB issued ASU No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes (“ASU 2019-12”), that removes certain exceptions for investments, intraperiod allocations and interim calculations, and adds guidance to reduce complexity in accounting for income taxes. ASU 2019-12 introduces the following new guidance: i) guidance to evaluate whether a step-up in tax basis of goodwill relates to a business combination in which book goodwill was recognized or a separate transaction and ii) a policy election to not allocate consolidated income taxes when a member of a consolidated tax return is not subject to income tax. Additionally, ASU 2019-12 changes the following current guidance: i) making an intraperiod allocation, if there is a loss in continuing operations and gains outside of continuing operations, ii) determining when a deferred tax liability is recognized after an investor in a foreign entity transitions to or from the equity method of accounting, iii) accounting for tax law changes and year-to-date losses in interim periods, and iv) determining how to apply the income tax guidance to franchise taxes that are partially based on income. ASU 2019-12 is effective for fiscal years, and interim periods within those fiscal years beginning after December 15, 2020. The adoption of ASU 2019-12 did not have a material impact on the Company’s operations, financial position or disclosures.

Fair Value Measurement Disclosures – In August 2018, the FASB issued ASU No. 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework-Changes to the Disclosure Requirements for Fair Value Measurement (“ASU 2018-13”), that eliminates, amends and adds disclosure requirements for fair value measurements. These amendments are part of FASB’s disclosure review project and are expected to reduce costs for preparers while providing more decision-useful information for financial statement users. The eliminated disclosure requirements include the 1) the amount of, and reasons for, transfers between Level 1 and Level 2 of the fair value hierarchy; 2) the policy of timing of transfers between levels of the fair value hierarchy; and 3) the valuation processes for Level 3 fair value measurements. Among other modifications, the amended disclosure requirements remove the term “at a minimum” from the phrase “an entity shall disclose at a minimum” to promote the appropriate exercise of discretion by entities and clarifies that the measurement uncertainty disclosure is to communicate information about the uncertainty in measurement as of the reporting date. Under the new disclosure requirements, entities must disclose the changes in unrealized gains or losses included in other comprehensive income for recurring Level 3 fair value measurements held at the end of the reporting period and the range and weighted average used to develop significant unobservable inputs for Level 3 fair value measurements. ASU 2018-13 is effective for fiscal years beginning after December 15, 2019, and interim periods within those fiscal years, with early adoption permitted. The adoption of ASU 2018-13 did not have a material impact on the Company’s fair value disclosures.

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Credit Losses on Financial Instruments – In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments (“ASU 2016-13”), which requires earlier measurement of credit losses, expands the range of information considered in determining expected credit losses and enhances disclosures. The main objective of ASU 2016-13 is to provide financial statement users with more decision-useful information about the expected credit losses on financial instruments and other commitments to extend credit held by a reporting entity at each reporting date. The amendments replaced the incurred loss impairment methodology in US GAAP with a methodology (the current expected credit losses, or “CECL”, methodology) that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates.

The CECL methodology utilizes a lifetime “expected credit loss” measurement objective for the recognition of credit losses for loans, held-to-maturity debt securities and other receivables measured at amortized cost at the time the financial asset is originated or acquired. The allowance for credit losses is adjusted each period for changes in expected lifetime credit losses. This methodology replaced the multiple existing impairment methods in previous guidance, which generally required that a loss be incurred before it is recognized. Within the life cycle of a loan or other financial asset, this new guidance will generally result in the earlier recognition of the provision for credit losses and the related allowance for credit losses than previous practice. For available-for-sale debt securities that the Company intends to hold and where fair value is less than cost, credit-related impairment, if any, will be recognized through an allowance for credit losses and adjusted each period for changes in credit risk.

The effective date for these amendments was for fiscal years beginning after December 15, 2019. In preparation for implementation of ASU 2016-13, the Company formed a cross functional team that assessed its data and system needs and evaluated the potential impact of adopting the new guidance. The Company anticipated a significant change in the processes and procedures to calculate the loan losses, including changes in assumptions and estimates to consider expected credit losses over the life of the loan versus the prior accounting practice that utilized the incurred loss model.

On March 27, 2020, the Coronavirus Aid, Relief, and Economic Security Act (“CARES Act”) was signed in to law by the President of the United States (“President”) and allows the option to temporarily defer or suspend the adoption of ASU 2016-13. During the deferral, a registrant would continue to use the incurred loss model for the allowance for loan and lease losses and would be in accordance with US GAAP. The Company did not elect to temporarily defer the adoption of ASU 2016-13 and adopted the new standard as of January 1, 2020. Upon adoption, the Company recorded an additional allowance for credit losses on loans of approximately $151.4 million and an adjustment to the reserve for unfunded commitments recorded in other liabilities of $24.0 million. The Company also recorded an additional allowance for credit losses on investment securities of $742,000. The impact at adoption was reflected as an adjustment to beginning retained earnings, net of income taxes, in the amount of $128.1 million.

The significant impact to the Company’s allowance for credit losses at the date of adoption was driven by the substantial amount of loans acquired held by the Company. The Company had approximately one third of total loans categorized as acquired at the adoption date with very little reserve allocated to them due to the previous incurred loss impairment methodology. As such, the amount of the CECL adoption impact was greater on the Company when compared to a non-acquisitive bank of a similar size.

In December 2018, the Federal Reserve, Office of the Comptroller of the Currency and Federal Deposit Insurance Corporation (“FDIC”) (collectively, the “agencies”) issued a final rule revising regulatory capital rules in anticipation of the adoption of ASU 2016-13 that provided an option to phase in over a three year period on a straight line basis the day-one impact on earnings and Tier 1 capital (the “CECL Transition Provision”).

In March 2020 and in response to the COVID-19 pandemic, the agencies issued a new regulatory capital rule revising the CECL Transition Provision to delay the estimated impact on regulatory capital stemming from the implementation of ASU 2016-13. The rule provides banking organizations that implement CECL before the end of 2020 the option to delay for two years an estimate of CECL’s effect on regulatory capital, followed by a three-year transition period (the “2020 CECL Transition Provision”). The Company elected to apply the 2020 CECL Transition Provision.

The Company used the prospective transition approach for financial assets purchased with credit deterioration (“PCD”) that were previously classified as purchased credit impaired (“PCI”) and accounted for under ASC 310-30, Loans and Debt Securities Acquired with Deteriorated Credit Quality. The Company increased the allowance for credit losses by approximately $5.4 million at adoption for the assets previously identified as PCI. In accordance with ASU 2016-13, the Company did not reassess whether PCI assets met the criteria of PCD assets as of the date of adoption.

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Recently Issued Accounting Standards

Leases - In July 2021, the FASB issued ASU No. 2021-05, Leases (Topic 842): Lessors-Certain Leases with Variable Lease Payments (“ASU 2021-05”), that amends lease classification requirements for lessors. In accordance with ASU 2021-05, lessors should classify and account for a lease that have variable lease payments that do not depend on a reference index rate as an operating lease if both of the following criteria are met: i) the lease would have been classified as a sales-type lease or a direct financing lease under the previous lease classification criteria and ii) sales-type or direct financing lease classification would result in a Day 1 loss. ASU 2021-05 is effective for public business entities for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2021, with early adoption permitted. The Company is currently evaluating the impact of this standard, but the standard is not expected to have a material impact on the Company’s results of operations, financial position or disclosures.

There have been no other significant changes to the Company’s accounting policies from the 2020 Form 10-K. Presently, the Company is not aware of any other changes to the Accounting Standards Codification that will have a material impact on its present or future financial position or results of operations.

NOTE 2: ACQUISITIONS (Subsequent Event)

Landmark Community Bank

On June 4, 2021, the Company and the Bank entered into an Agreement and Plan of Merger (“Landmark Agreement”) with Landmark Community Bank (“Landmark”), headquartered in Collierville, Tennessee. The merger was completed on October 8, 2021, at which time Landmark was merged with and into the Bank, with the Bank continuing as the surviving entity. Pursuant to the terms of the Landmark Agreement, holders of Landmark’s common stock and common stock equivalents received, in the aggregate, 4,499,872 shares of the Company’s common stock and $6,451,727.43 in cash.

Prior to the acquisition, Landmark conducted banking business from 8 branches located in the Memphis and Nashville, Tennessee, metropolitan areas. As of September 30, 2021, Landmark had approximately $978.8 million in assets, $784.4 million in loans and $813.3 million in deposits.

The purchase price allocation and certain fair value measurements remain preliminary due to the timing of the merger. Due to the recent closing, management remains in the early stages of reviewing the estimated fair values and evaluating the assumed tax positions of this merger. The Company expects to finalize its analysis of the acquired assets and assumed liabilities in this transaction within one year of the merger.

Triumph Bancshares, Inc.

On June 4, 2021, the Company entered into an Agreement and Plan of Merger (“Triumph Agreement”) with Triumph Bancshares, Inc. (“Triumph”), the parent company of Triumph Bank, headquartered in Memphis, Tennessee. The merger was completed on October 8, 2021, at which time Triumph was merged with and into the Company, with the Company continuing as the surviving corporation. Pursuant to the terms of the Triumph Agreement, holders of Triumph’s common stock and common stock equivalents received, in the aggregate, 4,164,712 shares of the Company’s common stock and $1,693,402.93 in cash.

Prior to the acquisition, Triumph conducted banking business from 6 branches located in the Memphis and Nashville, Tennessee, metropolitan areas. As of September 30, 2021, Triumph had approximately $855.3 million in assets, $708.0 million in loans and $724.0 million in deposits.

The purchase price allocation and certain fair value measurements remain preliminary due to the timing of the merger. Due to the recent closing, management remains in the early stages of reviewing the estimated fair values and evaluating the assumed tax positions of this merger. The Company expects to finalize its analysis of the acquired assets and assumed liabilities in this transaction within one year of the merger.

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NOTE 3: INVESTMENT SECURITIES

Held-to-maturity securities (“HTM”), which include any security for which the Company has both the positive intent and ability to hold until maturity, are carried at historical cost adjusted for amortization of premiums and accretion of discounts. Premiums and discounts are amortized and accreted, respectively, to interest income using the constant effective yield method over the security’s estimated life. Prepayments are anticipated for mortgage-backed and SBA securities. Premiums on callable securities are amortized to their earliest call date.

Available-for-sale securities (“AFS”), which include any security for which the Company has no immediate plan to sell but which may be sold in the future, are carried at fair value. Realized gains and losses, based on specifically identified amortized cost of the individual security, are included in other income. Unrealized gains and losses are recorded, net of related income tax effects, in stockholders’ equity, further discussed below. Premiums and discounts are amortized and accreted, respectively, to interest income using the constant effective yield method over the estimated life of the security. Prepayments are anticipated for mortgage-backed and SBA securities. Premiums on callable securities are amortized to their earliest call date.

During the third quarter of 2021, the Company transferred, at fair value, $500.8 million of securities from the available-for-sale portfolio to the held-to-maturity portfolio. The related net unrealized gains of $1.1 million remained in accumulated other comprehensive income (loss) and will be amortized over the remaining life of the securities. No gains or losses on these securities were recognized at the time of transfer.

The amortized cost, fair value and allowance for credit losses of investment securities that are classified as HTM are as follows: 

(In thousands)	Amortized Cost		Allowance for Credit Losses		Net Carrying Amount		Gross Unrealized Gains		Gross Unrealized (Losses)		Estimated Fair Value
Held-to-maturity
September 30, 2021
U.S. Government agencies	$	232,549	$	—	$	232,549	$	—	$	(5,179)	$	227,370
Mortgage-backed securities	57,930		—		57,930		417		(1,024)		57,323
State and political subdivisions	1,210,287		(1,196)		1,209,091		2,206		(24,962)		1,186,335
Other securities	17,310		(83)		17,227		—		(339)		16,888
Total HTM	$	1,518,076	$	(1,279)	$	1,516,797	$	2,623	$	(31,504)	$	1,487,916
December 31, 2020
Mortgage-backed securities	$	22,354	$	—	$	22,354	$	683	$	—	$	23,037
State and political subdivisions	312,416		(2,307)		310,109		8,148		(30)		318,227
Other securities	1,176		(608)		568		93		—		661
Total HTM	$	335,946	$	(2,915)	$	333,031	$	8,924	$	(30)	$	341,925

Mortgage-backed securities (“MBS”) are commercial MBS, secured by commercial properties, and residential MBS, generally secured by single-family residential properties. As of September 30, 2021, HTM MBS consists of $5.4 million and $52.5 million of commercial MBS and residential MBS, respectively. As of December 31, 2020, HTM MBS consists of $7.7 million and $14.7 million of commercial MBS and residential MBS, respectively.

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The amortized cost, fair value and allowance for credit losses of investment securities that are classified as AFS are as follows:

(In thousands)	Amortized Cost		Allowance for Credit Losses		Gross Unrealized Gains		Gross Unrealized (Losses)		Estimated Fair Value
Available-for-sale
September 30, 2021
U.S. Treasury	$	300	$	—	$	—	$	—	$	300
U.S. Government agencies	361,452		—		635		(7,705)		354,382
Mortgage-backed securities	4,434,981		—		14,741		(28,102)		4,421,620
State and political subdivisions	1,574,674		—		17,877		(17,343)		1,575,208
Other securities	467,336		—		7,328		(3,971)		470,693
Total AFS	$	6,838,743	$	—	$	40,581	$	(57,121)	$	6,822,203
December 31, 2020
U.S. Government agencies	$	477,693	$	—	$	844	$	(1,300)	$	477,237
Mortgage-backed securities	1,374,769		—		21,261		(1,094)		1,394,936
State and political subdivisions	1,416,136		(217)		55,111		(307)		1,470,723
Other securities	128,445		(95)		2,447		(95)		130,702
Total AFS	$	3,397,043	$	(312)	$	79,663	$	(2,796)	$	3,473,598

As of September 30, 2021, AFS MBS consists of $1.56 billion and $2.86 billion of commercial MBS and residential MBS, respectively. As of December 31, 2020, AFS MBS consists of $406.1 million and $988.8 million of commercial MBS and residential MBS, respectively.

Accrued interest receivable on HTM and AFS securities at September 30, 2021 was $8.3 million and $20.9 million, respectively, and is included in interest receivable on the consolidated balance sheets. The Company has made the election to exclude all accrued interest receivable from securities from the estimate of credit losses.

The following table summarizes the Company’s AFS investments in an unrealized loss position for which an allowance for credit loss has not been recorded as of September 30, 2021, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position:

	Less Than 12 Months				12 Months or More				Total
(In thousands)	Estimated Fair Value		Gross Unrealized Losses		Estimated Fair Value		Gross Unrealized Losses		Estimated Fair Value		Gross Unrealized Losses
Available-for-sale
U.S. Government agencies	$	190,275	$	(3,759)	$	111,662	$	(3,946)	$	301,937	$	(7,705)
Mortgage-backed securities	2,342,244		(27,380)		46,253		(722)		2,388,497		(28,102)
State and political subdivisions	969,120		(16,056)		23,372		(1,287)		992,492		(17,343)
Other securities	157,974		(3,971)		—		—		157,974		(3,971)
Total AFS	$	3,659,613	$	(51,166)	$	181,287	$	(5,955)	$	3,840,900	$	(57,121)

As of September 30, 2021, the Company’s investment portfolio included $6.8 billion of AFS securities, of which $3.8 billion, or 56.3%, were in an unrealized loss position that were not deemed to have credit losses. A portion of the unrealized losses were related to the Company’s MBS, which are issued and guaranteed by U.S. government-sponsored entities and agencies, and the Company’s state and political subdivision securities, specifically investments in insured fixed rate municipal bonds for which the issuers continue to make timely principal and interest payments under the contractual terms of the securities.

Furthermore, the decline in fair value for each of the above AFS securities is attributable to the rates for those investments yielding less than current market rates. Management does not believe any of the securities are impaired due to reasons of credit quality. Management believes the declines in fair value for the securities are temporary. Management does not have the intent to

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sell the securities, and management believes it is more likely than not the Company will not have to sell the securities before recovery of their amortized cost basis.

Allowance for Credit Losses

All MBS held by the Company are issued by U.S. government-sponsored entities and agencies. These securities are either explicitly or implicitly guaranteed by the U.S. government, highly rated by major rating agencies and have a long history of no credit losses. Accordingly, no allowance for credit losses has been recorded for these securities.

Regarding securities issued by state and political subdivisions and other HTM securities, management considers (i) issuer bond ratings, (ii) historical loss rates for given bond ratings, (iii) whether issuers continue to make timely principal and interest payments under the contractual terms of the securities, (iv) internal forecasts, and (v) whether or not such securities provide insurance or other credit enhancement or are pre-refunded by the issuers.

The following table details activity in the allowance for credit losses by investment security type for the three and nine months ended September 30, 2021 on the Company’s HTM and AFS securities portfolios.

(In thousands)	State and Political Subdivisions		Other Securities		Total
Three Months Ended September 30, 2021
Held-to-maturity
Beginning balance, July 1, 2021	$	871	$	261	$	1,132
Provision for credit loss expense	325		(325)		—
Recoveries	—		147		147
Ending balance, September 30, 2021	$	1,196	$	83	$	1,279
Available-for-sale
Beginning balance, July 1, 2021	$	—	$	—	$	—
Net decrease in allowance on previously impaired securities	—		—		—
Ending balance, September 30, 2021	$	—	$	—	$	—
Nine Months Ended September 30, 2021
Held-to-maturity
Beginning balance, January 1, 2021	$	2,307	$	608	$	2,915
Provision for credit loss expense	(1,111)		(72)		(1,183)
Securities charged-off	—		(600)		(600)
Recoveries	—		147		147
Ending balance, September 30, 2021	$	1,196	$	83	$	1,279
Available-for-sale
Beginning balance, January 1, 2021	$	217	$	95	$	312
Reduction due to sales	—		(11)		(11)
Net decrease in allowance on previously impaired securities	(217)		(84)		(301)
Ending balance, September 30, 2021	$	—	$	—	$	—

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Activity in the allowance for credit losses by investment security type for the three and nine months ended September 30, 2020 on the Company’s HTM and AFS securities portfolio was as follows:

(In thousands)	State and Political Subdivisions		Other Securities		Total
Three Months Ended September 30, 2020
Held-to-maturity
Beginning balance, July 1, 2020	$	95	$	212	$	307
Provision for credit loss expense	(22)		88		66
Ending balance, September 30, 2020	$	73	$	300	$	373
Available-for-sale
Beginning balance, July 1, 2020	$	371	$	238	$	609
Credit losses on securities not previously recorded	1,137		23		1,160
Reduction due to sales	$	(294)	$	—	$	(294)
Net decrease in allowance on previously impaired securities	(66)		(201)		(267)
Ending balance, September 30, 2020	$	1,148	$	60	$	1,208
Nine Months Ended September 30, 2020
Held-to-maturity
Beginning balance, January 1, 2020	$	—	$	—	$	—
Impact of ASU 2016-13 adoption	58		311		369
Provision for credit loss expense	15		(11)		4
Ending balance, September 30, 2020	$	73	$	300	$	373
Available-for-sale
Beginning balance, January 1, 2020	$	—	$	—	$	—
Impact of ASU 2016-13 adoption	373		—		373
Credit losses on securities not previously recorded	1,130		78		1,208
Reduction due to sales	(244)		—		(244)
Net increase in allowance on previously impaired securities	(111)		(18)		(129)
Ending balance, September 30, 2020	$	1,148	$	60	$	1,208

Based upon the Company’s analysis of the underlying risk characteristics of its AFS portfolio, including credit ratings and other qualitative factors, as previously discussed, there was no provision for credit losses related to AFS securities recorded in the third quarter of 2021 and it was reduced by $312,000 during the nine months ended September 30, 2021. During the three and nine months ended September 30, 2020, the provision for credit losses was $599,000 and $835,000, respectively, related to AFS securities.

The following table summarizes bond ratings for the Company’s HTM portfolio, based upon amortized cost, issued by state and political subdivisions and other securities as of September 30, 2021:

	State and Political Subdivisions
(In thousands)	Not Guaranteed or Pre-Refunded		Other Credit Enhancement or Insurance		Pre-Refunded		Total		Other Securities
Aaa/AAA	$	130,326	$	114,831	$	—	$	245,157	$	—
Aa/AA	495,498		308,656		—		804,154		—
A	45,229		82,432		—		127,661		—
Baa/BBB	1,049		10,302		—		11,351		—
Not Rated	6,322		15,642		—		21,964		17,310
Total	$	678,424	$	531,863	$	—	$	1,210,287	$	17,310

Historical loss rates associated with securities having similar grades as those in the Company’s portfolio have generally not been significant. Pre-refunded securities, if any, have been defeased by the issuer and are fully secured by cash and/or U.S. Treasury

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securities held in escrow for payment to holders when the underlying call dates of the securities are reached. Securities with other credit enhancement or insurance continue to make timely principal and interest payments under the contractual terms of the securities. Accordingly, no allowance for credit losses has been recorded for these securities as there is no current expectation of credit losses related to these securities.

Income earned on securities for the three and nine months ended September 30, 2021 and 2020, is as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands)	2021		2020		2021		2020
Taxable:
Held-to-maturity	$	1,127	$	256	$	2,477	$	715
Available-for-sale	15,949		6,937		39,313		26,604
Non-taxable:
Held-to-maturity	4,853		65		9,887		205
Available-for-sale	8,788		7,652		27,741		19,802
Total	$	30,717	$	14,910	$	79,418	$	47,326

The amortized cost and estimated fair value by maturity of securities as of September 30, 2021 are shown in the following table. Securities are classified according to their contractual maturities without consideration of principal amortization, potential prepayments or call options. Accordingly, actual maturities may differ from contractual maturities. 

	Held-to-Maturity				Available-for-Sale
(In thousands)	Amortized Cost		Fair Value		Amortized Cost		Fair Value
One year or less	$	5,644	$	5,678	$	8,385	$	8,423
After one through five years	7,676		7,993		53,515		54,008
After five through ten years	27,094		26,019		487,966		492,654
After ten years	1,419,732		1,390,903		1,853,165		1,844,768
Securities not due on a single maturity date	57,930		57,323		4,434,981		4,421,620
Other securities (no maturity)	—		—		731		730
Total	$	1,518,076	$	1,487,916	$	6,838,743	$	6,822,203

The carrying value, which approximates the fair value, of securities pledged as collateral, to secure public deposits and for other purposes, amounted to $3.69 billion at September 30, 2021 and $2.01 billion at December 31, 2020. 

There were approximately $5.3 million of gross realized gains and $24,500 of gross realized losses from the sale of securities during the three months ended September 30, 2021, and approximately $15.9 million of gross realized gains and $63,600 of gross realized losses from the sale of securities during the nine months ended September 30, 2021. The Company sold approximately $342.6 million of investment securities during the nine months ended September 30, 2021. There were approximately $22.3 of gross realized gains and $1,700 of gross realized losses from the sale of securities during the three months ended September 30, 2020, and approximately $54.8 million of gross realized gains and $4,400 of gross realized losses from the sale of securities during the nine months ended September 30, 2020. During the first half of 2020, the Company sold approximately $1.7 billion of investment securities to create additional liquidity. The income tax expense/benefit related to security gains/losses was 26.135% of the gross amounts in 2021 and 2020.

The Company has entered into various fair value hedging transactions to mitigate the impact of changing interest rates on the fair value of AFS securities. See Note 23: Derivative Instruments for disclosure of the gains and losses recognized on derivative instruments and the cumulative fair value hedging adjustments to the carrying amount of the hedged securities.

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NOTE 4: OTHER LIABILITIES HELD FOR SALE

Illinois Branch Sale

On November 30, 2020, the Company’s subsidiary bank, Simmons Bank, entered into a Branch Purchase and Assumption Agreement (the “Citizens Equity Agreement”) with Citizens Equity First Credit Union (“CEFCU”).

On March 12, 2021, CEFCU completed its purchase of certain assets and assumption of certain liabilities (“Illinois Branch Sale”) associated with four Simmons Bank locations in the Metro East area of Southern Illinois, near St. Louis (collectively, the “Illinois Branches”). Pursuant to the terms of the Citizens Equity Agreement, CEFCU assumed certain deposit liabilities and acquired certain loans, as well as cash, personal property and other fixed assets associated with the Illinois Branches. The loan and deposit balances of the Illinois Branches were $354,000 and $137.9 million, respectively.

The Company recognized a gain on sale of $5.3 million related to the Illinois Branches in the nine month period ended September 30, 2021.

As of September 30, 2021, there were no outstanding other liabilities held for sale.

NOTE 5: LOANS AND ALLOWANCE FOR CREDIT LOSSES

At September 30, 2021, the Company’s loan portfolio was $10.83 billion, compared to $12.90 billion at December 31, 2020. The various categories of loans are summarized as follows:

	September 30,		December 31,
(In thousands)	2021		2020
Consumer:
Credit cards	$	175,884	$	188,845
Other consumer	182,492		202,379
Total consumer	358,376		391,224
Real Estate:
Construction and development	1,229,740		1,596,255
Single family residential	1,540,701		1,880,673
Other commercial	5,308,902		5,746,863
Total real estate	8,079,343		9,223,791
Commercial:
Commercial	1,821,905		2,574,386
Agricultural	216,735		175,905
Total commercial	2,038,640		2,750,291
Other	348,868		535,591
Total loans	$	10,825,227	$	12,900,897

The above table presents total loans at amortized cost. The difference between amortized cost and unpaid principal balance is primarily premiums and discounts associated with acquisition date fair value adjustments on acquired loans as well as net deferred origination fees totaling $29.4 million and $57.3 million at September 30, 2021 and December 31, 2020, respectively.

Accrued interest on loans, which is excluded from the amortized cost of loans held for investment, totaled $39.2 million and $54.4 million at September 30, 2021 and December 31, 2020, respectively, and is included in interest receivable on the consolidated balance sheets.

Loan Origination/Risk Management – The Company seeks to manage its credit risk by diversifying its loan portfolio, determining that borrowers have adequate sources of cash flow for loan repayment without liquidation of collateral; obtaining and monitoring collateral; and providing an adequate allowance for credit losses by regularly reviewing loans through the internal loan review process. The loan portfolio is diversified by borrower, purpose and industry. The Company seeks to use diversification within the loan portfolio to reduce its credit risk, thereby minimizing the adverse impact on the portfolio if weaknesses develop in either the

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economy or a particular segment of borrowers. Collateral requirements are based on credit assessments of borrowers and may be used to recover the debt in case of default.

Consumer – The consumer loan portfolio consists of credit card loans and other consumer loans. Credit card loans are diversified by geographic region to reduce credit risk and minimize any adverse impact on the portfolio. Although they are regularly reviewed to facilitate the identification and monitoring of creditworthiness, credit card loans are unsecured loans, making them more susceptible to economic downturns that result in increased unemployment. Other consumer loans include direct and indirect installment loans and account overdrafts. Loans in this portfolio segment are sensitive to unemployment and other key consumer economic measures.

Real estate – The real estate loan portfolio consists of construction and development loans (“C&D”), single family residential loans and commercial loans. C&D and commercial real estate (“CRE”) loans can be particularly sensitive to valuation of real estate. CRE cycles are inevitable. The long planning and production process for new properties and rapid shifts in business conditions and employment create an inherent tension between supply and demand for commercial properties. While general economic trends often move individual markets in the same direction over time, the timing and magnitude of changes are determined by other forces unique to each market. CRE cycles tend to be local in nature and longer than other credit cycles. Factors influencing the CRE market are traditionally different from those affecting residential real estate markets; thereby making predictions for one market based on the other difficult. Additionally, submarkets within CRE – such as office, industrial, apartment, retail and hotel – also experience different cycles, providing an opportunity to lower the overall risk through diversification across types of CRE loans. Management realizes that local demand and supply conditions will also mean that different geographic areas will experience cycles of different amplitude and duration. The Company monitors these loans closely. 

Commercial – The commercial loan portfolio includes commercial and agricultural loans, representing loans to commercial customers and farmers for use in normal business or farming operations to finance working capital needs, equipment purchases or other expansion projects. Paycheck Protection Program (“PPP”) loans are also included in the commercial loan portfolio. Collection risk in this portfolio is driven by the creditworthiness of the underlying borrowers, particularly cash flow from customers’ business or farming operations. The Company continues its efforts to keep loan terms short, reducing the negative impact of upward movement in interest rates. Term loans are generally set up with one or three year balloons, and the Company has instituted a pricing mechanism for commercial loans. It is standard practice to require personal guaranties on commercial loans for closely-held or limited liability entities.

Paycheck Protection Program Loans – The Company originated loans pursuant to multiple PPP appropriations of the CARES Act which provided 100% federally guaranteed loans for small businesses to cover up to 24 weeks of payroll costs and assistance with mortgage interest, rent and utilities. Notably, these small business loans may be forgiven by the SBA if borrowers maintain their payrolls and satisfy certain other conditions. PPP loans have a zero percent risk-weight for regulatory capital ratios. As of September 30, 2021 and December 31, 2020, the total outstanding balance of PPP loans was $212.1 million and $904.7 million, respectively.

Nonaccrual and Past Due Loans – Loans are considered past due if the required principal and interest payments have not been received as of the date such payments were due. Loans are placed on nonaccrual status when, in management’s opinion, the borrower may be unable to meet payment obligations as they become due, as well as when required by regulatory provisions. Loans may be placed on nonaccrual status regardless of whether or not such loans are considered past due. When interest accrual is discontinued, all unpaid accrued interest is reversed. Interest income is subsequently recognized only to the extent cash payments are received in excess of principal due. Loans are returned to accrual status when all the principal and interest amounts contractually due are brought current and future payments are reasonably assured.

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The amortized cost basis of nonaccrual loans segregated by category of loans are as follows:

	September 30,		December 31,
(In thousands)	2021		2020
Consumer:
Credit cards	$	390	$	301
Other consumer	391		1,219
Total consumer	781		1,520
Real estate:
Construction and development	2,330		3,625
Single family residential	21,068		28,062
Other commercial	17,838		24,155
Total real estate	41,236		55,842
Commercial:
Commercial	16,532		65,244
Agricultural	505		273
Total commercial	17,037		65,517
Total	$	59,054	$	122,879

As of September 30, 2021 and December 31, 2020, nonaccrual loans for which there was no related allowance for credit losses had an amortized cost of $20.2 million and $16.8 million, respectively. These loans are individually assessed and do not hold an allowance due to being adequately collateralized under the collateral-dependent valuation method.

An age analysis of the amortized cost basis of past due loans, including nonaccrual loans, segregated by class of loans is as follows: 

(In thousands)	Gross 30-89 Days Past Due		90 Days or More Past Due		Total Past Due		Current		Total Loans		90 Days Past Due & Accruing
September 30, 2021
Consumer:
Credit cards	$	751	$	253	$	1,004	$	174,880	$	175,884	$	154
Other consumer	925		90		1,015		181,477		182,492		1
Total consumer	1,676		343		2,019		356,357		358,376		155
Real estate:
Construction and development	2,854		605		3,459		1,226,281		1,229,740		5
Single family residential	6,546		6,154		12,700		1,528,001		1,540,701		75
Other commercial	2,293		13,620		15,913		5,292,989		5,308,902		—
Total real estate	11,693		20,379		32,072		8,047,271		8,079,343		80
Commercial:
Commercial	2,130		6,639		8,769		1,813,136		1,821,905		99
Agricultural	140		459		599		216,136		216,735		—
Total commercial	2,270		7,098		9,368		2,029,272		2,038,640		99
Other	7		—		7		348,861		348,868		—
Total	$	15,646	$	27,820	$	43,466	$	10,781,761	$	10,825,227	$	334

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(In thousands)	Gross 30-89 Days Past Due		90 Days or More Past Due		Total Past Due		Current		Total Loans		90 Days Past Due & Accruing
December 31, 2020
Consumer:
Credit cards	$	708	$	256	$	964	$	187,881	$	188,845	$	256
Other consumer	2,771		302		3,073		199,306		202,379		13
Total consumer	3,479		558		4,037		387,187		391,224		269
Real estate:
Construction and development	1,375		3,089		4,464		1,591,791		1,596,255		—
Single family residential	23,726		14,339		38,065		1,842,608		1,880,673		253
Other commercial	2,660		9,586		12,246		5,734,617		5,746,863		—
Total real estate	27,761		27,014		54,775		9,169,016		9,223,791		253
Commercial:
Commercial	7,514		7,429		14,943		2,559,443		2,574,386		56
Agricultural	226		187		413		175,492		175,905		—
Total commercial	7,740		7,616		15,356		2,734,935		2,750,291		56
Other	92		—		92		535,499		535,591		—
Total	$	39,072	$	35,188	$	74,260	$	12,826,637	$	12,900,897	$	578

When the Company restructures a loan to a borrower that is experiencing financial difficulty and grants a concession that it would not otherwise consider, a “troubled debt restructuring” (“TDR”) results and the Company classifies the loan as a TDR. The Company grants various types of concessions, primarily interest rate reduction and/or payment modifications or extensions, with an occasional forgiveness of principal.

Once an obligation has been restructured because of such credit problems, it continues to be considered a TDR until paid in full; or, if an obligation yields a market interest rate and no longer has any concession regarding payment amount or amortization, then it is not considered a TDR at the beginning of the calendar year after the year in which the improvement takes place. The Company returns TDRs to accrual status only if (1) all contractual amounts due can reasonably be expected to be repaid within a prudent period and (2) repayment has been in accordance with the contract for a sustained period, typically at least six months.

The provisions in the CARES Act included an election to not apply the guidance on accounting for TDRs to loan modifications, such as extensions or deferrals, related to COVID-19 made between March 1, 2020 and the earlier of (i) December 31, 2020 or (ii) 60 days after the President terminates the COVID-19 national emergency declaration. In March 2020, the federal financial institution regulatory agencies issued an interagency statement encouraging financial institutions to work constructively with borrowers affected by COVID-19 and provided information regarding loan modifications. The relief can only be applied to modifications for borrowers that were not more than 30 days past due as of December 31, 2019. The Company elected to adopt these provisions of the CARES Act. In response to the concerns related to the expiration of the applicable period for which the election to not apply the guidance on accounting for TDRs to loan modifications, the CARES Act was amended in late fourth quarter of 2020 to extend COVID-19 relief related to loan modifications to the earlier of (i) January 1, 2022 or (ii) 60 days after the President terminates the COVID-19 national emergency declaration. As of September 30, 2021, the Company had 35 COVID-19 loan modifications outstanding in the amount of $82.0 million. Deferred interest on these loan modifications will be collected at the end of the note or once regular payments are resumed.

TDRs are individually evaluated for expected credit losses. The Company assesses the exposure for each modification, either by the fair value of the underlying collateral or the present value of expected cash flows, and determines if a specific allowance for credit losses is needed.

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The following table presents a summary of TDRs segregated by class of loans.

	Accruing TDR Loans			Nonaccrual TDR Loans			Total TDR Loans
(Dollars in thousands)	Number	Balance		Number	Balance		Number	Balance
September 30, 2021
Real estate:
Single-family residential	28	$	2,994	12	$	1,141	40	$	4,135
Other commercial	2	820		1	1		3	821
Total real estate	30	3,814		13	1,142		43	4,956
Commercial:
Commercial	2	437		2	1,408		4	1,845
Total commercial	2	437		2	1,408		4	1,845
Total	32	$	4,251	15	$	2,550	47	$	6,801
December 31, 2020
Real estate:
Single-family residential	28	$	2,463	18	$	2,736	46	$	5,199
Other commercial	1	49		1	12		2	61
Total real estate	29	2,512		19	2,748		48	5,260
Commercial:
Commercial	3	626		3	1,627		6	2,253
Total commercial	3	626		3	1,627		6	2,253
Total	32	$	3,138	22	$	4,375	54	$	7,513

The following table presents loans that were restructured as TDRs during the nine month periods ended September 30, 2021 and 2020. There were no loans restructured as TDRs during the three month periods ended September 30, 2021 and 2020.

(Dollars in thousands)	Number of loans	Balance Prior to TDR		Balance at September 30,		Change in Maturity Date		Change in Rate		Financial Impact on Date of Restructure
Nine Months Ended Sept 30, 2021
Real estate:
Other commercial	1	$	784	$	778	$	—	$	778	$	—
Total real estate	1	$	784	$	778	$	—	$	778	$	—
Nine Months Ended Sept 30, 2020
Real estate:
Single-family residential	5	$	1,948	$	1,896	$	1,896	$	—	$	—
Total real estate	5	$	1,948	$	1,896	$	1,896	$	—	$	—

During the nine months ended September 30, 2021, the Company modified one loan with a recorded investment of $784,000 prior to modification which was deemed a TDR. The restructured loan was modified by deferring amortized principal payments and requiring interest only payments for a period of up to 12 months. A specific reserve of approximately $5,100 was recorded with respect to this TDR. Also, there was no immediate financial impact from the restructuring of this loan, as it was not considered necessary to charge-off interest or principal on the date of restructure.

During the nine months ended September 30, 2020, the Company modified five loans with a recorded investment of $1.9 million prior to modification which was deemed troubled debt restructuring. The restructured loan was modified by deferring amortized principal payments, changing the maturity date and requiring interest only payments for a period of up to 12 months. A specific

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reserve of $16,600 was determined necessary for this loan. Also, there was no immediate financial impact from the restructuring of this loan, as it was not considered necessary to charge-off interest or principal on the date of restructure.

Additionally, there were no loans considered TDRs for which a payment default occurred during the nine months ended September 30, 2021. There was one commercial loan considered a TDR for which a payment default occurred during the nine months ended September 30, 2020. The Company defines a payment default as a payment received more than 90 days after its due date.

There were no TDRs with pre-modification loan balances for which Other Real Estate Owned (“OREO”) was received in full or partial satisfaction of the loans during the three and nine month periods ended September 30, 2021 or 2020. At September 30, 2021 and December 31, 2020, the Company had $2.9 million and $7.2 million, respectively, of consumer mortgage loans secured by residential real estate properties for which formal foreclosure proceedings are in process. At September 30, 2021 and December 31, 2020, the Company had $1.6 million and $3.2 million, respectively, of OREO secured by residential real estate properties.

Credit Quality Indicators – As part of the on-going monitoring of the credit quality of the Company’s loan portfolio, management tracks certain credit quality indicators including trends related to (i) the weighted-average risk rating of commercial and real estate loans, (ii) the level of classified commercial and real estate loans, (iii) net charge-offs, (iv) non-performing loans (see details above) and (v) the general economic conditions of the Company’s local markets.

The Company utilizes a risk rating matrix to assign a risk rate to each of its commercial and real estate loans. Risk ratings are updated on an ongoing basis and are subject to change by continuous loan monitoring processes including lending management monitoring, executive management and board committee oversight, and independent credit review. A description of the general characteristics of the risk ratings is as follows:

•Pass (Excellent) – This category includes loans which are virtually free of credit risk. Borrowers in this category represent the highest credit quality and greatest financial strength.

•Pass (Good) - Loans under this category possess a nominal risk of default. This category includes borrowers with strong financial strength and superior financial ratios and trends. These loans are generally fully secured by cash or equivalents (other than those rated “excellent”).

•Pass (Acceptable – Average) - Loans in this category are considered to possess a normal level of risk. Borrowers in this category have satisfactory financial strength and adequate cash flow coverage to service debt requirements. If secured, the perfected collateral should be of acceptable quality and within established borrowing parameters.

•Pass (Monitor) - Loans in the Watch (Monitor) category exhibit an overall acceptable level of risk, but that risk may be increased by certain conditions, which represent “red flags”. These “red flags” require a higher level of supervision or monitoring than the normal “Pass” rated credit. The borrower may be experiencing these conditions for the first time, or it may be recovering from weakness, which at one time justified a higher rating. These conditions may include: weaknesses in financial trends; marginal cash flow; one-time negative operating results; non-compliance with policy or borrowing agreements; poor diversity in operations; lack of adequate monitoring information or lender supervision; questionable management ability/stability.

•Special Mention - A loan in this category has potential weaknesses that deserve management’s close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the asset or in the institution’s credit position at some future date. Special Mention loans are not adversely classified (although they are “criticized”) and do not expose an institution to sufficient risk to warrant adverse classification. Borrowers may be experiencing adverse operating trends or an ill-proportioned balance sheet. Non-financial characteristics of a Special Mention rating may include management problems, pending litigation, a non-existent or ineffective loan agreement or other material structural weakness, and/or other significant deviation from prudent lending practices.

•Substandard - A Substandard loan is inadequately protected by the current sound worth and paying capacity of the borrower or of the collateral pledged, if any. Loans so classified must have a well-defined weakness, or weaknesses, that jeopardize the liquidation of the debt. The loans are characterized by the distinct possibility that the Company will sustain some loss if the deficiencies are not corrected. This does not imply ultimate loss of the principal, but may involve burdensome administrative expenses and the accompanying cost to carry the loan.

•Doubtful - A loan classified Doubtful has all the weaknesses inherent in a substandard loan except that the weaknesses make collection or liquidation in full (on the basis of currently existing facts, conditions, and values) highly questionable and improbable. Doubtful borrowers are usually in default, lack adequate liquidity or capital, and lack the resources necessary to

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remain an operating entity. The possibility of loss is extremely high, but because of specific pending events that may strengthen the asset, its classification as loss is deferred. Pending factors include: proposed merger or acquisition; liquidation procedures; capital injection; perfection of liens on additional collateral; and refinancing plans. Loans classified as Doubtful are placed on nonaccrual status.

•Loss - Loans classified Loss are considered uncollectible and of such little value that their continuance as bankable assets is not warranted. This classification does not mean that the loans has absolutely no recovery or salvage value, but rather it is not practical or desirable to defer writing off this basically worthless loan, even though partial recovery may be affected in the future. Borrowers in the Loss category are often in bankruptcy, have formally suspended debt repayments, or have otherwise ceased normal business operations. Loans should be classified as Loss and charged-off in the period in which they become uncollectible.

The Company monitors credit quality in the consumer portfolio by delinquency status. The delinquency status of loans is updated daily. A description of the delinquency credit quality indicators is as follows:

•Current - Loans in this category are either current in payments or are under 30 days past due. These loans are considered to have a normal level of risk.

•30-89 Days Past Due - Loans in this category are between 30 and 89 days past due and are subject to the Company’s loss mitigation process. These loans are considered to have a moderate level of risk.

•90+ Days Past Due - Loans in this category are 90 days or more past due and are placed on nonaccrual status. These loans have been subject to the Company’s loss mitigation process and foreclosure and/or charge-off proceedings have commenced.

Effective April 2021, the Company implemented an expanded, dual risk rating scale that utilizes quantitative models and qualitative factors (“score cards”) to assist in determining the appropriate risk rating for its commercial loans. This dual risk rating methodology incorporates a “probability of default” analysis which utilizes quantified metrics such as loan terms and financial performance, as well as a “loss given default” analysis which utilizes collateral values and economics of the market, among other attributes. Model outputs are reviewed and analyzed to ensure the projected risk levels are commensurate with underwriting and credit leader expectations. The expanded risk rating scale includes Probability of Default levels of 1 – 16 and Loss Given Default levels of A – I. The expanded scale allows for more granular recognition of risk and diversification of grading among traditional Pass grades. Implementation of the expanded risk rating scale did not have a material impact on the results of the allowance for credit losses calculation.

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The following table presents a summary of loans by credit quality indicator, as of September 30, 2021, segregated by class of loans.

	Term Loans Amortized Cost Basis by Origination Year
(In thousands)	2021 (YTD)		2020		2019		2018		2017		2016 and Prior		Lines of Credit (“LOC”) Amortized Cost Basis		LOC Converted to Term Loans Amortized Cost Basis		Total
Consumer - credit cards
Delinquency:
Current	—		—		—		—		—		—		174,880		—		174,880
30-89 days past due	—		—		—		—		—		—		751		—		751
90+ days past due	—		—		—		—		—		—		253		—		253
Total consumer - credit cards	—		—		—		—		—		—		175,884		—		175,884
Consumer - other
Delinquency:
Current	105,415		26,334		15,158		8,396		7,051		5,138		13,985		—		181,477
30-89 days past due	197		148		113		142		184		129		12		—		925
90+ days past due	—		14		27		9		20		19		1		—		90
Total consumer - other	105,612		26,496		15,298		8,547		7,255		5,286		13,998		—		182,492
Real estate - C&D
Risk rating:
Pass	47,644		94,278		33,487		19,254		12,848		10,030		982,776		21,429		1,221,746
Special mention	—		—		279		—		—		—		—		—		279
Substandard	1,801		83		146		57		328		674		2,673		1,953		7,715
Doubtful and loss	—		—		—		—		—		—		—		—		—
Total real estate - C&D	49,445		94,361		33,912		19,311		13,176		10,704		985,449		23,382		1,229,740
Real estate - SF residential
Delinquency:
Current	223,243		245,410		152,838		229,241		179,874		318,019		169,693		9,683		1,528,001
30-89 days past due	—		217		1,124		704		1,279		2,215		1,007		—		6,546
90+ days past due	67		380		595		1,141		1,528		1,785		586		72		6,154
Total real estate - SF residential	223,310		246,007		154,557		231,086		182,681		322,019		171,286		9,755		1,540,701
Real estate - other commercial
Risk rating:
Pass	712,198		825,416		361,642		305,381		484,230		549,452		1,410,186		217,398		4,865,903
Special mention	32,752		57,067		2,833		7,666		34,164		8,723		91,572		7,194		241,971
Substandard	33,001		25,289		6,172		9,800		33,130		22,630		50,335		20,671		201,028
Doubtful and loss	—		—		—		—		—		—		—		—		—
Total real estate - other commercial	777,951		907,772		370,647		322,847		551,524		580,805		1,552,093		245,263		5,308,902
Commercial
Risk rating:
Pass	419,739		212,161		91,328		66,078		30,687		44,298		852,103		46,186		1,762,580
Special mention	—		2,438		569		210		252		384		106		11,016		14,975
Substandard	3,726		18,934		2,016		1,512		688		978		10,048		6,448		44,350
Doubtful and loss	—		—		—		—		—		—		—		—		—
Total commercial	423,465		233,533		93,913		67,800		31,627		45,660		862,257		63,650		1,821,905
Commercial - agriculture
Risk rating:
Pass	27,000		22,841		11,726		4,599		2,688		655		144,909		1,447		215,865
Special mention	—		—		—		9		—		—		—		—		9
Substandard	192		70		99		254		68		9		99		70		861
Doubtful and loss	—		—		—		—		—		—		—		—		—
Total commercial - agriculture	27,192		22,911		11,825		4,862		2,756		664		145,008		1,517		216,735
Other
Delinquency:
Current	58		4,789		1,287		24,108		5,483		6,111		307,025		—		348,861
30-89 days past due	—		—		—		—		—		7		—		—		7
90+ days past due	—		—		—		—		—		—		—		—		—
Total other	58		4,789		1,287		24,108		5,483		6,118		307,025		—		348,868
Total	$	1,607,033	$	1,535,869	$	681,439	$	678,561	$	794,502	$	971,256	$	4,213,000	$	343,567	$	10,825,227

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The following table presents a summary of loans by credit quality indicator, as of December 31, 2020, segregated by class of loans.

	Term Loans Amortized Cost Basis by Origination Year
(In thousands)	2020		2019		2018		2017		2016		2015 and Prior		Lines of Credit (“LOC”) Amortized Cost Basis		LOC Converted to Term Loans Amortized Cost Basis		Total
Consumer - credit cards
Delinquency:
Current	—		—		—		—		—		—		187,881		—		187,881
30-89 days past due	—		—		—		—		—		—		708		—		708
90+ days past due	—		—		—		—		—		—		256		—		256
Total consumer - credit cards	—		—		—		—		—		—		188,845		—		188,845
Consumer - other
Delinquency:
Current	69,334		44,215		27,525		21,995		19,023		2,530		14,684		—		199,306
30-89 days past due	234		441		327		658		689		84		338		—		2,771
90+ days past due	79		58		25		80		40		12		8		—		302
Total consumer - other	69,647		44,714		27,877		22,733		19,752		2,626		15,030		—		202,379
Real estate - C&D
Risk rating:
Pass	165,990		35,989		31,279		15,960		9,233		4,807		1,272,870		23,251		1,559,379
Special mention	2,728		344		259		2,107		19		—		9,613		—		15,070
Substandard	294		2,069		404		449		342		320		17,914		14		21,806
Doubtful and loss	—		—		—		—		—		—		—		—		—
Total real estate - C&D	169,012		38,402		31,942		18,516		9,594		5,127		1,300,397		23,265		1,596,255
Real estate - SF residential
Delinquency:
Current	473,340		209,810		297,308		235,429		183,229		236,395		196,505		10,592		1,842,608
30-89 days past due	6,300		2,258		2,593		2,610		2,058		6,050		1,781		76		23,726
90+ days past due	557		1,853		2,735		2,582		832		3,852		1,928		—		14,339
Total real estate - SF residential	480,197		213,921		302,636		240,621		186,119		246,297		200,214		10,668		1,880,673
Real estate - other commercial
Risk rating:
Pass	1,563,245		525,750		375,303		518,534		372,679		284,098		1,445,428		181,949		5,266,986
Special mention	100,085		4,346		10,738		19,943		26,245		10,608		63,305		23,435		258,705
Substandard	66,737		9,418		24,380		14,067		3,744		11,158		52,182		39,486		221,172
Doubtful and loss	—		—		—		—		—		—		—		—		—
Total real estate - other commercial	1,730,067		539,514		410,421		552,544		402,668		305,864		1,560,915		244,870		5,746,863
Commercial
Risk rating:
Pass	1,168,085		154,740		110,383		65,757		35,198		45,568		803,751		56,648		2,440,130
Special mention	5,707		342		465		972		54		—		12,318		22,546		42,404
Substandard	23,227		4,495		1,586		730		276		334		53,682		7,522		91,852
Doubtful and loss	—		—		—		—		—		—		—		—		—
Total commercial	1,197,019		159,577		112,434		67,459		35,528		45,902		869,751		86,716		2,574,386
Commercial - agriculture
Risk rating:
Pass	36,128		19,144		10,014		4,671		1,916		340		101,238		1,560		175,011
Special mention	—		79		13		299		—		6		34		—		431
Substandard	86		101		64		47		12		10		68		75		463
Doubtful and loss	—		—		—		—		—		—		—		—		—
Total commercial - agriculture	36,214		19,324		10,091		5,017		1,928		356		101,340		1,635		175,905
Other
Delinquency:
Current	125		4,260		27,256		6,489		2,628		6,065		488,676		—		535,499
30-89 days past due	59		—		—		—		33		—		—		—		92
90+ days past due	—		—		—		—		—		—		—		—		—
Total other	184		4,260		27,256		6,489		2,661		6,065		488,676		—		535,591
Total	$	3,682,340	$	1,019,712	$	922,657	$	913,379	$	658,250	$	612,237	$	4,725,168	$	367,154	$	12,900,897

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Allowance for Credit Losses

Allowance for Credit Losses – The allowance for credit losses is a reserve established through a provision for credit losses charged to expense, which represents management’s best estimate of lifetime expected losses based on reasonable and supportable forecasts, historical loss experience, and other qualitative considerations. The allowance, in the judgment of management, is necessary to reserve for expected loan losses and risks inherent in the loan portfolio. The Company’s allowance for credit loss methodology includes reserve factors calculated to estimate current expected credit losses to amortized cost balances over the remaining contractual life of the portfolio, adjusted for the effective interest rate used to discount prepayments, in accordance with ASC Topic 326-20, Financial Instruments - Credit Losses. Accordingly, the methodology is based on the Company’s reasonable and supportable economic forecasts, historical loss experience, and other qualitative adjustments.

Loans with similar risk characteristics such as loan type, collateral type, and internal risk ratings are aggregated into homogeneous segments for assessment. Reserve factors are based on estimated probability of default and loss given default for each segment. The estimates are determined based on economic forecasts over the reasonable and supportable forecast period based on projected performance of economic variables that have a statistical relationship with the historical loss experience of the segments. For contractual periods that extend beyond the one-year forecast period, the estimates revert to average historical loss experiences over a one-year period on a straight-line basis.

The Company also includes qualitative adjustments to the allowance based on factors and considerations that have not otherwise been fully accounted for. Qualitative adjustments include, but are not limited to:

•Changes in asset quality - Adjustments related to trending credit quality metrics including delinquency, non-performing loans, charge-offs, and risk ratings that may not be fully accounted for in the reserve factor.

•Changes in the nature and volume of the portfolio - Adjustments related to current changes in the loan portfolio that are not fully represented or accounted for in the reserve factors.

•Changes in lending and loan monitoring policies and procedures - Adjustments related to current changes in lending and loan monitoring procedures as well as review of specific internal policy compliance metrics.

•Changes in the experience, ability, and depth of lending management and other relevant staff - Adjustments to measure increasing or decreasing credit risk related to lending and loan monitoring management.

•Changes in the value of underlying collateral of collateralized loans - Adjustments related to improving or deterioration of the value of underlying collateral that are not fully captured in the reserve factors.

•Changes in and the existence and effect of any concentrations of credit - Adjustments related to credit risk of specific industries that are not fully captured in the reserve factors.

•Changes in regional and local economic and business conditions and developments - Adjustments related to expected and current economic conditions at a regional or local-level that are not fully captured within the Company’s reasonable and supportable forecast.

•Data imprecisions due to limited historical loss data - Adjustments related to limited historical loss data that is representative of the collective loan portfolio.

Loans that do not share similar risk characteristics are evaluated on an individual basis. These evaluations are typically performed on loans with a deteriorated internal risk rating or are classified as a troubled debt restructuring. The allowance for credit loss is determined based on several methods including estimating the fair value of the underlying collateral or the present value of expected cash flows.

For a collateral dependent loan, the Company’s evaluation process includes a valuation by appraisal or other collateral analysis adjusted for selling costs, when appropriate. This valuation is compared to the remaining outstanding principal balance of the loan. If a loss is determined to be probable, the loss is included in the allowance for credit losses as a specific allocation. If the loan is not collateral dependent, the measurement of loss is based on the difference between the expected and contractual future cash flows of the loan.

27

Loans for which the repayment is expected to be provided substantially through the operation or sale of collateral and where the borrower is experiencing financial difficulty had an amortized cost of $42.1 million as of September 30, 2021, as further detailed in the table below. The collateral securing these loans consist of commercial real estate properties, residential properties, other business assets, and secured energy production assets.

(In thousands)	Real Estate Collateral		Energy		Other Collateral		Total
Construction and development	$	4,181	$	—	$	—	$	4,181
Single family residential	2,921		—		—		2,921
Other commercial real estate	31,672		—		—		31,672
Commercial	—		—		3,317		3,317
Total	$	38,774	$	—	$	3,317	$	42,091

The following table details activity in the allowance for credit losses by portfolio segment for the three and nine months ended September 30, 2021. Allocation of a portion of the allowance to one category of loans does not preclude its availability to absorb losses in other categories. 

(In thousands)	Commercial		Real Estate		Credit Card		Other Consumer and Other		Total
Allowance for credit losses:
Three Months Ended September 30, 2021
Beginning balance, July 1, 2021	$	29,793	$	188,388	$	5,442	$	3,616	$	227,239
Provision for credit loss expense	(11,853)		(7,668)		(247)		(122)		(19,890)
Charge-offs	(932)		(5,941)		(711)		(463)		(8,047)
Recoveries	463		2,068		267		408		3,206
Net charge-offs	(469)		(3,873)		(444)		(55)		(4,841)
Ending balance, September 30, 2021	$	17,471	$	176,847	$	4,751	$	3,439	$	202,508
Nine Months Ended September 30, 2021
Beginning balance, January 1, 2021	$	42,093	$	182,868	$	7,472	$	5,617	$	238,050
Provision for credit loss expense	(25,453)		(1,948)		(763)		(1,737)		(29,901)
Charge-offs	(2,099)		(8,068)		(2,759)		(1,577)		(14,503)
Recoveries	2,930		3,995		801		1,136		8,862
Net charge-offs	831		(4,073)		(1,958)		(441)		(5,641)
Ending balance, September 30, 2021	$	17,471	$	176,847	$	4,751	$	3,439	$	202,508

Activity in the allowance for credit losses for the three and nine months ended September 30, 2020 was as follows:

(In thousands)	Commercial		Real Estate		Credit Card		Other Consumer and Other		Total
Allowance for credit losses:
Three Months Ended September 30, 2020
Beginning balance, July 1, 2020	$	59,138	$	149,471	$	10,979	$	12,055	$	231,643
Provision for credit losses	(6,499)		33,479		(1,823)		(2,844)		22,313
Charge-offs	(4,327)		(1,153)		(832)		(1,091)		(7,403)
Recoveries	936		120		276		366		1,698
Net (charge-offs) recoveries	(3,391)		(1,033)		(556)		(725)		(5,705)
Ending balance, September 30, 2020	$	49,248	$	181,917	$	8,600	$	8,486	$	248,251

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Nine Months Ended September 30, 2020
Beginning balance, January 1, 2020 - prior to adoption of CECL	$	22,863	$	39,161	$	4,051	$	2,169	$	68,244
Impact of CECL adoption	22,733		114,314		2,232		12,098		151,377
Provision for credit loss expense	42,808		31,341		4,870		(3,829)		75,190
Charge-offs	(40,537)		(3,373)		(3,326)		(3,062)		(50,298)
Recoveries	1,381		474		773		1,110		3,738
Net charge-offs	(39,156)		(2,899)		(2,553)		(1,952)		(46,560)
Ending balance, September 30, 2020	$	49,248	$	181,917	$	8,600	$	8,486	$	248,251

As of September 30, 2021, the Company’s allowance for credit losses was considered sufficient based upon expected loan level cash flows that were supported by economic forecasts. Provision expense was recaptured for the three and nine months ended September 30, 2021 based upon improved asset credit quality metrics combined with improved Moody’s economic modeling scenarios.

The provision for credit losses for the nine months ended September 30, 2020 was primarily related to concern over the economic stresses related to COVID-19 as well as specific provisions for two energy credits that were previously identified as problem loans that were impacted by the sharp decline in commodity pricing. Four energy credits within the Commercial segment were charged off during the second quarter of 2020 for a total of $32.6 million.

Reserve for Unfunded Commitments

In addition to the allowance for credit losses, the Company has established a reserve for unfunded commitments, classified in other liabilities. This reserve is maintained at a level management believes to be sufficient to absorb losses arising from unfunded loan commitments. The reserve for unfunded commitments as of September 30, 2021 and December 31, 2020 was $22.4 million. The adequacy of the reserve for unfunded commitments is determined quarterly based on methodology similar to the methodology for determining the allowance for credit losses. No adjustment was made to the reserve for unfunded commitments during the three and nine months ended September 30, 2021 as it was considered sufficient to cover any loss expectations. For the nine month period ended September 30, 2020, net adjustments to the reserve for unfunded commitments resulted in a benefit $8.0 million and was included in the provision for credit losses in the statement of income.

Provision for Credit Losses

Provision for credit losses is determined by the Company as the amount to be added to the allowance for credit loss accounts for various types of financial instruments including loans, securities and off-balance-sheet credit exposure after net charge-offs have been deducted to bring the allowance to a level which, in management’s best estimate, is necessary to absorb expected credit losses over the lives of the respective financial instruments.

The components of the provision for credit losses for the three and nine month periods ended September 30, 2021 and 2020 were as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands)	2021		2020		2021		2020
Provision for credit losses related to:
Loans	$	(19,890)	$	22,313	$	(29,901)	$	75,190
Unfunded commitments	—		—		—		(8,000)
Securities - HTM	—		66		(1,183)		4
Securities - AFS	—		602		(312)		836
Total	$	(19,890)	$	22,981	$	(31,396)	$	68,030

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NOTE 6: RIGHT-OF-USE LEASE ASSETS AND LEASE LIABILITIES

The Company accounts for its leases in accordance with ASC Topic 842, Leases, which requires recognition of most leases, including operating leases, with a term greater than 12 months on the balance sheet. At lease commencement, the lease contract is reviewed to determine whether the contract is a finance lease or an operating lease; a lease liability is recognized on a discounted basis, related to the Company’s obligation to make lease payments; and a right-of-use asset is also recognized related to the Company’s right to use, or control the use of, a specified asset for the lease term. The Company accounts for lease and non-lease components (such as taxes, insurance and common area maintenance costs) separately as such amounts are generally readily determinable under the lease contracts. Lease payments over the expected term are discounted using the Company’s Federal Home Loan Bank (“FHLB”) advance rates for borrowings of similar term. If it is reasonably certain that a renewal or termination option will be exercised, the effects of such options are included in the determination of the expected lease term. Leases with an initial term of 12 months or less are not recorded on the balance sheet; the Company recognizes lease expense for these leases on a straight-line basis over the lease term.

The Company’s leases are classified as operating leases with a term, including expected renewal or termination options, greater than one year, and are related to certain office facilities and office equipment. The following table presents information as of September 30, 2021 and December 31, 2020 related to the Company’s right-of-use lease assets, included in premises and equipment, and lease liabilities, included in accrued interest and other liabilities.

	September 30,			December 31,
(Dollars in thousands)	2021			2020
Right-of-use lease assets	$	40,700		$	31,348
Lease liabilities	41,110			31,433
Weighted average remaining lease term	8.52 years			6.55 years
Weighted average discount rate	2.43		%	3.09		%

Operating lease cost for the three and nine month periods ended September 30, 2021 was $2.8 million and $8.5 million, respectively, as compared to $3.5 million and $10.1 million for the same periods in 2020.

NOTE 7: PREMISES AND EQUIPMENT

Premises and equipment are stated at cost less accumulated depreciation and amortization. Total premises and equipment, net at September 30, 2021 and December 31, 2020 were as follows:

	September 30,		December 31,
(In thousands)	2021		2020
Right-of-use lease assets	$	40,700	$	31,348
Premises and equipment:
Land	99,317		90,953
Buildings and improvements	313,884		293,338
Furniture, fixtures and equipment	103,946		100,863
Software	65,855		64,877
Construction in progress	3,950		763
Accumulated depreciation and amortization	(163,728)		(140,450)
Total premises and equipment, net	$	463,924	$	441,692

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NOTE 8: GOODWILL AND OTHER INTANGIBLE ASSETS

Goodwill is tested annually, or more often than annually, if circumstances warrant, for impairment. If the implied fair value of goodwill is lower than its carrying amount, goodwill impairment is indicated, and goodwill is written down to its implied fair value. Subsequent increases in goodwill value are not recognized in the financial statements. Goodwill totaled $1.1 billion at September 30, 2021 and December 31, 2020.

Goodwill impairment was neither indicated nor recorded during the nine months ended September 30, 2021 or the year ended December 31, 2020. During the first quarter of 2020, the Company’s share price began to decline as the markets in the United States responded to the global COVID-19 pandemic. As a result of that economic decline, the effect on share price and other factors, the Company performed an interim goodwill impairment assessment during each quarter of 2020 and concluded no impairment existed during each period. While the goodwill impairment analyses indicated no impairment during 2020, the Company’s assessment depended on several assumptions which were dependent on market and economic conditions, and future changes in those conditions could impact the Company’s assessment in the future. The Company will complete an interim goodwill impairment analysis if the stock price falls below the book value per share for a full quarter. Due to the improved market and economic conditions, and the related effects on the Company’s share price, the Company did not perform an interim goodwill impairment assessment during the first or third quarter of 2021. During the second quarter of 2021, the Company performed an annual goodwill impairment analysis and concluded no impairment existed.

Core deposit premiums represent the value of the relationships that acquired banks had with their deposit customers and are amortized over periods ranging from 10 years to 15 years and are periodically evaluated, at least annually, as to the recoverability of their carrying value. Other intangible assets represent the value of other acquired relationships, including relationships with trust and wealth management customers, and are being amortized over various periods ranging from 10 years to 15 years.

Changes in the carrying amount and accumulated amortization of the Company’s core deposit premiums and other intangible assets at September 30, 2021 and December 31, 2020 were as follows: 

	September 30,		December 31,
(In thousands)	2021		2020
Core deposit premiums:
Balance, beginning of year	$	97,363	$	111,808
Disposition of intangible asset(1)	(674)		(2,324)
Amortization	(8,978)		(12,121)
Balance, end of period	87,711		97,363
Books of business and other intangibles:
Balance, beginning of year	13,747		15,532
Disposition of intangible asset	—		(413)
Amortization	(1,030)		(1,372)
Balance, end of period	12,717		13,747
Total other intangible assets, net	$	100,428	$	111,110

_________________________

(1)    Adjustments recorded for the premiums on certain deposit liabilities associated with the sale of banking operations.

31

The carrying basis and accumulated amortization of the Company’s other intangible assets at September 30, 2021 and December 31, 2020 were as follows: 

	September 30,		December 31,
(In thousands)	2021		2020
Core deposit premiums:
Gross carrying amount	$	144,202	$	146,355
Accumulated amortization	(56,491)		(48,992)
Core deposit premiums, net	87,711		97,363
Books of business and other intangibles:
Gross carrying amount	19,937		19,937
Accumulated amortization	(7,220)		(6,190)
Books of business and other intangibles, net	12,717		13,747
Total other intangible assets, net	$	100,428	$	111,110

The Company’s estimated remaining amortization expense on other intangible assets as of September 30, 2021 is as follows:

(In thousands)	Year	Amortization Expense
	Remainder of 2021	$	3,332
	2022	13,275
	2023	12,992
	2024	12,090
	2025	9,505
	Thereafter	49,234
	Total	$	100,428

NOTE 9: TIME DEPOSITS

Time deposits included approximately $1.76 billion and $2.03 billion of certificates of deposit of $100,000 or more, at September 30, 2021, and December 31, 2020, respectively. Of this total, approximately $819.1 million and $889.8 million of certificates of deposit were over $250,000 at September 30, 2021 and December 31, 2020, respectively.

NOTE 10: INCOME TAXES

The provision for income taxes is comprised of the following components for the periods indicated below:

	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands)	2021		2020		2021		2020
Income taxes currently payable	$	21,500	$	19,329	$	46,566	$	51,000
Deferred income taxes	(2,730)		(1,696)		3,585		2,920
Provision for income taxes	$	18,770	$	17,633	$	50,151	$	53,920

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The tax effects of temporary differences between the tax basis of assets and liabilities and their financial reporting amounts that give rise to deferred income tax assets and liabilities, and their approximate tax effects, are as follows: 

	September 30,		December 31,
(In thousands)	2021		2020
Deferred tax assets:
Loans acquired	$	5,882	$	10,100
Allowance for credit losses	47,652		58,028
Valuation of foreclosed assets	1,631		1,673
Tax NOLs from acquisition	13,698		16,028
Deferred compensation payable	3,342		3,060
Accrued equity and other compensation	6,091		5,905
Acquired securities	431		587
Right-of-use lease liability	9,992		7,835
Unrealized loss on AFS securities	3,631		—
Allowance for unfunded commitments	5,444		5,583
Other	8,255		7,600
Gross deferred tax assets	106,049		116,399
Deferred tax liabilities:
Goodwill and other intangible amortization	(36,584)		(38,882)
Accumulated depreciation	(24,510)		(34,667)
Right-of-use lease asset	(9,893)		(7,813)
Unrealized gain on AFS securities	—		(17,521)
Other	(4,001)		(4,021)
Gross deferred tax liabilities	(74,988)		(102,904)
Net deferred tax asset	$	31,061	$	13,495

A reconciliation of income tax expense at the statutory rate to the Company’s actual income tax expense is shown for the periods indicated below:

	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands)	2021		2020		2021		2020
Computed at the statutory rate (21%)	$	20,859	$	17,539	$	57,336	$	53,719
Increase (decrease) in taxes resulting from:
State income taxes, net of federal tax benefit	1,477		1,143		4,855		5,502
Stock-based compensation	(22)		74		15		143
Tax exempt interest income	(2,973)		(1,752)		(8,224)		(4,594)
Tax exempt earnings on BOLI	(435)		(308)		(995)		(839)
Federal tax credits	(491)		(434)		(1,670)		(1,252)
Other differences, net	355		1,371		(1,166)		1,241
Actual tax provision	$	18,770	$	17,633	$	50,151	$	53,920

33

The Company follows ASC Topic 740, Income Taxes, which prescribes a recognition threshold and a measurement attribute for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. Benefits from tax positions should be recognized in the financial statements only when it is more likely than not that the tax position will be sustained upon examination by the appropriate taxing authority that would have full knowledge of all relevant information. A tax position that meets the more-likely-than-not recognition threshold is measured at the largest amount of benefit that is greater than fifty percent likely of being realized upon ultimate settlement. Tax positions that previously failed to meet the more-likely-than-not recognition threshold should be recognized in the first subsequent financial reporting period in which that threshold is met. Previously recognized tax positions that no longer meet the more-likely-than-not recognition threshold should be derecognized in the first subsequent financial reporting period in which that threshold is no longer met. ASC Topic 740 also provides guidance on the accounting for and disclosure of unrecognized tax benefits, interest and penalties. The Company has no history of expiring net operating loss carryforwards and is projecting significant pre-tax and financial taxable income in future years. The Company expects to fully realize its deferred tax assets in the future.

The amount of unrecognized tax benefits may increase or decrease in the future for various reasons including adding amounts for current tax year positions, expiration of open income tax returns due to the statutes of limitation, changes in management’s judgment about the level of uncertainty, status of examinations, litigation and legislative activity and the addition or elimination of uncertain tax positions.

Section 382 of the Internal Revenue Code imposes an annual limit on the ability of a corporation that undergoes an “ownership change” to use its U.S. net operating losses to reduce its tax liability. The Company has engaged in two tax-free reorganization transactions in which acquired net operating losses are limited pursuant to Section 382. In total, approximately $62.1 million of federal net operating losses subject to the IRC Section 382 annual limitation are expected to be utilized by the Company. All of the acquired net operating loss carryforwards are expected to be fully utilized by 2036.

The Company files income tax returns in the U.S. federal jurisdiction. The Company’s U.S. federal income tax returns are open and subject to examinations from the 2017 tax year and forward. The Company’s various state income tax returns are generally open from the 2017 and later tax return years based on individual state statute of limitations.

NOTE 11: SECURITIES SOLD UNDER AGREEMENTS TO REPURCHASE

The Company utilizes securities sold under agreements to repurchase to facilitate the needs of its customers and to facilitate secured short-term funding needs. Securities sold under agreements to repurchase are stated at the amount of cash received in connection with the transaction. The Company monitors collateral levels on a continuous basis. The Company may be required to provide additional collateral based on the fair value of the underlying securities. Securities pledged as collateral under repurchase agreements are maintained with the Company’s safekeeping agents.

The gross amount of recognized liabilities for repurchase agreements was $202.3 million and $248.9 million at September 30, 2021 and December 31, 2020, respectively. The remaining contractual maturity of the securities sold under agreements to repurchase in the consolidated balance sheets as of September 30, 2021 and December 31, 2020 is presented in the following tables.

	Remaining Contractual Maturity of the Agreements
(In thousands)	Overnight and Continuous		Up to 30 Days		30-90 Days		Greater than 90 Days		Total
September 30, 2021
Repurchase agreements:
U.S. Government agencies	$	202,276	$	—	$	—	$	—	$	202,276
December 31, 2020
Repurchase agreements:
U.S. Government agencies	$	248,861	$	—	$	—	$	—	$	248,861

34

NOTE 12: OTHER BORROWINGS AND SUBORDINATED NOTES AND DEBENTURES

Debt at September 30, 2021 and December 31, 2020 consisted of the following components: 

	September 30,		December 31,
(In thousands)	2021		2020
Other Borrowings
FHLB advances, net of discount, due 2022 to 2035, 0.23% to 7.37% secured by real estate loans	$	1,306,360	$	1,308,674
Other long-term debt	32,225		33,393
Total other borrowings	1,338,585		1,342,067
Subordinated Notes and Debentures
Subordinated notes payable, due 4/1/2028, fixed-to-floating rate (fixed rate of 5.00% through 3/31/2023, floating rate of 2.15% above the three month LIBOR rate, reset quarterly)	330,000		330,000
Trust preferred securities, due 9/15/2037, floating rate of 1.37% above the three month LIBOR rate, reset quarterly	10,310		10,310
Trust preferred securities, due 6/6/2037, floating rate of 1.57% above the three month LIBOR rate, reset quarterly, callable without penalty	10,310		10,310
Trust preferred securities, due 12/15/2035, floating rate of 1.45% above the three month LIBOR rate, reset quarterly, callable without penalty	6,702		6,702
Trust preferred securities, net of discount, due 6/15/2037, floating rate of 1.85% above the three month LIBOR rate, reset quarterly, callable without penalty	25,290		25,172
Trust preferred securities, net of discount, due 12/15/2036, floating rate of 1.85% above the three month LIBOR rate, reset quarterly, callable without penalty	3,036		3,023
Unamortized debt issuance costs	(2,370)		(2,643)
Total subordinated notes and debentures	383,278		382,874
Total other borrowings and subordinated debt	$	1,721,863	$	1,724,941

In March 2018, the Company issued $330.0 million in aggregate principal amount, of 5.00% Fixed-to-Floating Rate Subordinated Notes (“Notes”) at a public offering price equal to 100% of the aggregate principal amount of the Notes. The Company incurred $3.6 million in debt issuance costs related to the offering during March 2018. The Notes will mature on April 1, 2028 and will bear interest at an initial fixed rate of 5.00% per annum, payable semi-annually in arrears. From and including April 1, 2023 to, but excluding, the maturity date or the date of earlier redemption, the interest rate will reset quarterly to an annual interest rate equal to the then-current three month LIBOR rate plus 215 basis points, payable quarterly in arrears. The Notes will be subordinated in right of payment to the payment of the Company’s other existing and future senior indebtedness, including all of its general creditors. The Notes are obligations of the Company only and are not obligations of, and are not guaranteed by, any of its subsidiaries. The Company used a portion of the net proceeds from the sale of the Notes to repay certain outstanding indebtedness. The Notes qualify for Tier 2 capital treatment.

The terms of the Company’s Notes and trust preferred securities utilize the three month LIBOR rate to determine the interest rate and expense due each quarter. The Company is currently reviewing all applicable documents and working with the debt holders and all relevant parties to determine the alternate interest rate index to be utilized, or other impacts, when LIBOR is discontinued.

The Company had total FHLB advances of $1.31 billion at September 30, 2021, of which $1.30 billion are FHLB Owns the Option (“FOTO”) advances. FOTO advances are a low cost, fixed-rate source of funding in return for granting to FHLB the flexibility to choose a termination date earlier than the maturity date. Typically, FOTO exercise dates follow a specified lockout period at the beginning of the term when FHLB cannot terminate the FOTO advance. If FHLB exercises its option to terminate the FOTO advance at one of the specified option exercise dates, there is no termination or prepayment fee, and replacement funding will be available at then-prevailing market rates, subject to FHLB’s credit and collateral requirements. The Company’s FOTO advances outstanding at September 30, 2021 have original maturity dates of ten years to fifteen years with lockout periods that have expired. The Company expects the FHLB’s option to terminate the FOTO advances prior to stated maturity dates will not be exercised due to the current low interest rate environment. The possibility of the FHLB exercising the options is continually analyzed by the Company along with the market expected rate outcome. At September 30, 2021, the FHLB advances outstanding were secured by mortgage loans and investment securities totaling approximately $4.4 billion and the Company had approximately $3.0 billion of additional advances available from the FHLB.

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The trust preferred securities are tax-advantaged issues that qualify for inclusion as Tier 2 capital at September 30, 2021. Distributions on these securities are included in interest expense on long-term debt. Each of the trusts is a statutory business trust organized for the sole purpose of issuing trust securities and investing the proceeds thereof in junior subordinated debentures of the Company, the sole asset of each trust. The preferred securities of each trust represent preferred beneficial interests in the assets of the respective trusts and are subject to mandatory redemption upon payment of the junior subordinated debentures held by the trust. The common securities of each trust are wholly-owned by the Company. Each trust’s ability to pay amounts due on the trust preferred securities is solely dependent upon the Company making payments on the related junior subordinated debentures. The Company’s obligations under the junior subordinated securities and other relevant trust agreements, in the aggregate, constitute a full and unconditional guarantee by the Company of each respective trust’s obligations under the trust securities issued by each respective trust.

The Company’s long-term debt primarily includes subordinated debt and long-term FHLB advances with an original maturity of greater than one year. Aggregate annual maturities of long-term debt at September 30, 2021, are as follows: 

Year	(In thousands)
Remainder of 2021	$	451
2022	1,727
2023	1,686
2024	2,327
2025	4,876
Thereafter	1,710,796
Total	$	1,721,863

NOTE 13: CONTINGENT LIABILITIES

In the ordinary course of its operations, the Company and its subsidiaries are parties to various legal proceedings incidental to the conduct of our business, including proceedings based on breach of contract claims, lender liability claims, and other ordinary-course claims, some of which seek substantial relief or damages.

On May 22, 2019, Danny Walkingstick and Whitnye Fort filed a putative class action complaint against Simmons Bank in the United States District Court for the Western District of Missouri. The operative complaint alleges that Simmons Bank improperly charges overdraft fees on transactions that did not actually overdraw customers’ accounts by utilizing the checking account’s “available balance” to assess overdraft fees instead of the “ledger balance.” Plaintiffs’ claims include breach of contract and unjust enrichment, and they seek to represent a proposed class of all Simmons Bank checking account customers who were assessed an overdraft fee on a transaction that purportedly did not overdraw the account. Plaintiffs seek unspecified damages, costs, attorneys’ fees, pre- and post-judgment interest, and other relief as the Court deems proper for themselves and the putative class. Simmons Bank denies the allegations but has reached a settlement in principle with the plaintiffs to resolve this matter, subject to the preparation and execution of a mutually acceptable settlement agreement and release, as well as the court’s approval. The settlement is not expected to have a material adverse effect on the Company’s business, consolidated results of operations, financial condition, or cash flows.

On January 14, 2020, Susanne Pace filed a putative class action complaint in the Circuit Court of Boone County, Missouri against Landmark Bank, formerly a wholly-owned subsidiary of The Landrum Company, to which Simmons Bank is a successor by merger in connection with the Company’s acquisition of The Landrum Company, which closed in October 2019. The complaint alleges that Landmark Bank improperly charged overdraft fees where a transaction was initially authorized on sufficient funds but later settled negative due to intervening transactions. The complaint asserts a claim for breach of contract, which incorporates the implied duty of good faith and fair dealing. Plaintiff seeks to represent a proposed class of all Landmark Bank checking account customers from Missouri who were allegedly charged overdraft fees on transactions that did not overdraw their checking account. Plaintiff seeks unspecified actual, statutory, and punitive damages as well as costs, attorneys’ fees, prejudgment interest, an injunction, and other relief as the Court deems proper for herself and the putative class. Simmons Bank denies the allegations but has reached a settlement in principle with the plaintiff to resolve this matter, subject to the preparation and execution of a mutually acceptable settlement agreement and release, as well as the court’s approval. The settlement is not expected to have a material adverse effect on the Company’s business, consolidated results of operations, financial condition, or cash flows.

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On June 29, 2020, Shunda Wilkins, Diann Graham, and David Watson filed a putative class action complaint against Simmons Bank in the United States District Court for the Eastern District of Arkansas. The complaint alleges that Simmons Bank improperly charges multiple insufficient funds or overdraft fees when a merchant resubmits a rejected payment request. The complaint asserts claims for breach of contract and unjust enrichment. Plaintiffs seek to represent a proposed class of all Simmons Bank checking account customers who were charged multiple insufficient funds or overdraft fees on resubmitted payment requests. Plaintiffs seek unspecified damages, costs, attorney’s fees, pre-judgment interest, an injunction, and other relief as the Court deems proper for themselves and the purported class. Simmons Bank denies the allegations and is vigorously defending the matter.

On May 13, 2021, Susanne Pace filed a second putative class action complaint in the circuit court of Boone County, Missouri against Landmark Bank, to which Simmons Bank is a successor by merger, which has been removed to the United States District Court for the Western District of Missouri, Central Division. The complaint alleges that Landmark Bank improperly charged multiple insufficient funds or overdraft fees when a merchant or other originator resubmits a rejected payment request. The complaint asserts claims for breach of contract, including breach of the covenant of good faith and fair dealing. Plaintiff seeks to represent a proposed class of all Landmark Bank checking account customers who were charged multiple insufficient funds or overdraft fees on resubmitted payment requests. Plaintiff seeks unspecified damages, costs, attorney’s fees, pre- and post-judgment interest, an injunction, and other relief as the Court deems proper for herself and the purported class. Simmons Bank denies the allegations and is vigorously defending the matter.

We establish reserves for legal proceedings when potential losses become probable and can be reasonably estimated. While the ultimate resolution (including amounts thereof) of any legal proceedings, including the matters described above, cannot be determined at this time, based on information presently available and after consultation with legal counsel, management believes that the ultimate outcome in such proceedings, either individually or in the aggregate, will not have a material adverse effect on our business, consolidated results of operations, financial condition, or cash flows. It is possible, however, that future developments could result in an unfavorable outcome for or resolution of any of these proceedings, which may be material to our results of operations for a given fiscal period.

NOTE 14: CAPITAL STOCK

On February 27, 2009, at a special meeting, the Company’s shareholders approved an amendment to the Articles of Incorporation to establish 40,040,000 authorized shares of preferred stock, $0.01 par value. The aggregate liquidation preference of all shares of preferred stock cannot exceed $80,000,000.

On October 29, 2019, the Company filed Amended and Restated Articles of Incorporation (“October Amended Articles”) with the Arkansas Secretary of State. The October Amended Articles classified and designated Series D Preferred Stock, Par Value $0.01 Per Share, out of the Company’s authorized preferred stock.

Effective July 23, 2021, the Company’s Board of Directors approved an amendment to the Company’s current stock repurchase program (“Program”) that increases the amount of the Company’s common stock that may be repurchased under the Program from a maximum of $180 million to a maximum of $276.5 million and extends the term of the Program from October 31, 2021, to October 31, 2022 (unless terminated sooner). The Program was originally approved on October 17, 2019 and first amended in March 2020; and as of September 30, 2021, the Company has repurchased approximately $178.0 million of its common stock under the Program.

Under the Program, the Company may repurchase shares of its common stock through open market and privately negotiated transactions or otherwise. The timing, pricing, and amount of any repurchases under the Program will be determined by the Company’s management at its discretion based on a variety of factors, including, but not limited to, trading volume and market price of the Company’s common stock, corporate considerations, the Company’s working capital and investment requirements, general market and economic conditions, and legal requirements. The Program does not obligate the Company to repurchase any common stock and may be modified, discontinued, or suspended at any time without prior notice. The Company anticipates funding for this Program to come from available sources of liquidity, including cash on hand and future cash flow.

During the three and nine month periods ended September 30, 2021, the Company repurchased 1,806,205 shares at an average price of $28.48 per share and 1,937,121 shares at an average price of $28.14 per share, respectively, under the Program. Market conditions and the Company’s capital needs will drive decisions regarding additional, future stock repurchases. The Company repurchased 4,922,336 shares at an average price of $18.96 per share under the Program during the nine months ended September 30, 2020. No shares were repurchased during the three months ended September 30, 2020.

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NOTE 15: UNDIVIDED PROFITS

Simmons Bank, the Company’s subsidiary bank, is subject to legal limitations on dividends that can be paid to the parent company without prior approval of the applicable regulatory agencies. The approval of the Commissioner of the Arkansas State Bank Department is required if the total of all dividends declared by an Arkansas state bank in any calendar year exceeds seventy-five percent (75%) of the total of its net profits, as defined, for that year combined with seventy-five percent (75%) of its retained net profits of the preceding year. At September 30, 2021, Simmons Bank had approximately $47.0 million available for payment of dividends to the Company, without prior regulatory approval.

The risk-based capital guidelines of the Federal Reserve Board and the Arkansas State Bank Department include the definitions for (1) a well-capitalized institution, (2) an adequately-capitalized institution, and (3) an undercapitalized institution. The criteria for a well-capitalized institution are: a 5% “Tier l leverage capital” ratio, an 8% “Tier 1 risk-based capital” ratio, 10% “total risk-based capital” ratio; and a 6.5% “common equity Tier 1 (CET1)” ratio.

The Company and Simmons Bank, must hold a capital conservation buffer of 2.5% composed of CET1 capital above its minimum risk-based capital requirements. Failure to meet this capital conservation buffer would result in additional limits on dividends, other distributions and discretionary bonuses. As of September 30, 2021, the Company and Simmons Bank met all capital adequacy requirements, including the capital conservation buffer, under the Basel III Capital Rules. The Company’s CET1 ratio was 14.27% at September 30, 2021. 

NOTE 16: STOCK-BASED COMPENSATION

The Company’s Board of Directors has adopted various stock-based compensation plans. The plans provide for the grant of incentive stock options, nonqualified stock options, stock appreciation rights, restricted stock awards, restricted stock units and performance stock units. Pursuant to the plans, shares are reserved for future issuance by the Company upon exercise of stock options or awards of restricted stock, restricted stock units, or performance stock units granted to directors, officers and other key employees.

The table below summarizes the transactions under the Company’s active stock-based compensation plans for the nine months ended September 30, 2021: 

	Stock Options Outstanding			Non-vested Stock Awards Outstanding			Non-vested Stock Units Outstanding
(Shares in thousands)	Number of Shares	Weighted Average Exercise Price		Number of Shares	Weighted Average Grant-Date Fair Value		Number of Shares	Weighted Average Grant-Date Fair Value
Beginning balance, January 1, 2021	658	$	22.48	5	$	22.35	1,032	$	24.53
Granted	—	—		—	—		526	29.00
Stock options exercised	(183)	22.50		—	—		—	—
Stock awards/units vested (earned)	—	—		(3)	22.48		(331)	25.62
Forfeited/expired	—	—		—	—		(77)	25.78
Balance, September 30, 2021	475	$	22.47	2	$	22.20	1,150	$	26.14
Exercisable, September 30, 2021	475	$	22.47

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The following table summarizes information about stock options under the plans outstanding at September 30, 2021:

					Options Outstanding			Options Exercisable
Range of Exercise Prices					Number of Shares (In thousands)	Weighted Average Remaining Contractual Life (Years)	Weighted Average Exercise Price	Number of Shares (In thousands)	Weighted Average Exercise Price
$	9.46	—	$	9.46	1	0.30	$9.46	1	$9.46
10.65		—	10.65		3	1.33	10.65	3	10.65
20.29		—	20.29		47	3.25	20.29	47	20.29
20.36		—	20.36		1	3.13	20.36	1	20.36
22.20		—	22.20		51	3.48	22.20	51	22.20
22.75		—	22.75		293	3.86	22.75	293	22.75
23.51		—	23.51		72	4.30	23.51	72	23.51
24.07		—	24.07		7	3.96	24.07	7	24.07
$	9.46	—	$	24.07	475	3.80	$22.47	475	$22.47

The table below summarizes the Company’s performance stock unit activity for the nine months ended September 30, 2021:

(In thousands)	Performance Stock Units
Non-vested, January 1, 2021	222
Granted	97
Vested (earned)	(57)
Forfeited	(5)
Non-vested, June 30, 2021	257

Stock-based compensation expense was $12.6 million and $10.8 million during the nine month periods ended September 30, 2021 and 2020, respectively. Stock-based compensation expense is recognized ratably over the requisite service period for all stock-based awards. There was no unrecognized stock-based compensation expense related to stock options at September 30, 2021. Unrecognized stock-based compensation expense related to non-vested stock awards and stock units was $15.6 million at September 30, 2021. At such date, the weighted-average period over which this unrecognized expense is expected to be recognized was 1.7 years.

The intrinsic value of stock options outstanding and stock options exercisable at September 30, 2021 was $3.4 million. Aggregate intrinsic value represents the difference between the Company’s closing stock price on the last trading day of the period, which was $29.56 as of September 30, 2021, and the exercise price multiplied by the number of options outstanding. The total intrinsic value of stock options exercised during the nine months ended September 30, 2021 and 2020, was $1.3 million and $5,000, respectively.

The fair value of the Company’s employee stock options granted is estimated on the date of grant using the Black-Scholes option-pricing model. This model requires the input of highly subjective assumptions, changes to which can materially affect the fair value estimate. There were no stock options granted during the nine months ended September 30, 2021 and 2020.

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NOTE 17: EARNINGS PER SHARE (“EPS”)

Basic EPS is computed by dividing reported net income available to common stockholders by weighted average number of common shares outstanding during each period. Diluted EPS is computed by dividing reported net income available to common stockholders by the weighted average common shares and all potential dilutive common shares outstanding during the period.

The computation of earnings per share is as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands, except per share data)	2021		2020		2021		2020
Net income available to common stockholders	$	80,561	$	65,885	$	222,879	$	201,897
Average common shares outstanding	107,822		109,019		108,130		110,292
Average potential dilutive common shares	538		189		538		189
Average diluted common shares	108,360		109,208		108,668		110,481
Basic earnings per share	$	0.75	$	0.60	$	2.06	$	1.83
Diluted earnings per share	$	0.74	$	0.60	$	2.05	$	1.83

There were no stock options excluded from the earnings per share calculation for the three and nine months ended September 30, 2021 due to the average market price exceeding the related stock option exercise price. There were approximately 653,718 stock options excluded from the earnings per share calculation for the three and nine months ended September 30, 2020 due to the related stock option exercise price exceeding the average market price.

NOTE 18: ADDITIONAL CASH FLOW INFORMATION

The following is a summary of the Company’s additional cash flow information:

	Nine Months Ended September 30,
(In thousands)	2021		2020
Interest paid	$	59,535	$	95,040
Income taxes (refunded) paid	46,693		30,708
Transfers of loans to foreclosed assets held for sale	3,516		3,083
Transfers of premises to foreclosed assets and other real estate owned	—		3,120
Transfers of premises to premises held for sale	—		1,072
Transfers of other real estate owned to premises held for sale	—		3,504
Transfers of premises held for sale to other real estate owned	4,368		—
Transfers of premises held for sale to premises	5,610		—
Transfers of loans to other assets held for sale	—		114,925
Transfers of deposits to other liabilities held for sale	—		58,405

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NOTE 19: OTHER INCOME AND OTHER OPERATING EXPENSES

Other income for the three and nine months ended September 30, 2021 was $6.2 million and $24.6 million, respectively. Other income for the same periods in 2020 was $5.4 million and $28.0 million, respectively. During the nine month periods in 2021 and 2020, the Company recognized gains on sale of $5.3 million and $8.1 million, respectively, related to the sale of banking operations and bank branches.

Other operating expenses consisted of the following:

	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands)	2021		2020		2021		2020
Professional services	$	4,399	$	3,779	$	14,207	$	13,529
Postage	1,964		1,932		6,277		5,937
Telephone	1,516		2,103		4,758		6,738
Credit card expense (1)	2,727		2,818		7,588		7,690
Marketing	5,019		3,517		12,912		11,430
Software and technology	10,134		9,552		30,242		29,021
Operating supplies	605		824		2,013		2,588
Amortization of intangibles	3,332		3,362		10,008		10,144
Branch right sizing expense	(3,280)		442		(2,187)		2,401
Other expense	8,149		7,478		22,008		23,676
Total other operating expenses	$	34,565	$	35,807	$	107,826	$	113,154

_________________________

(1)    During the second and third quarters of 2021, certain debit and credit card transaction fees were reclassified from non-interest expense to non-interest income. Prior periods have been adjusted to reflect this reclassification.

NOTE 20: CERTAIN TRANSACTIONS

From time to time, the Company and its subsidiaries have made loans, other extensions of credit, and vendor contracts to directors, officers, their associates and members of their immediate families. Additionally, some directors, officers and their associates and members of their immediate families have placed deposits with the Company’s subsidiary bank, Simmons Bank. Such loans and other extensions of credit, deposits and vendor contracts (which were not material) were made in the ordinary course of business, on substantially the same terms (including interest rates and collateral) as those prevailing at the time for comparable transactions with unrelated persons or through a competitive bid process. Further, in management’s opinion, these extensions of credit did not involve more than normal risk of collectability or present other unfavorable features.

NOTE 21: COMMITMENTS AND CREDIT RISK

The Company grants agribusiness, commercial and residential loans to customers primarily throughout Arkansas, Kansas, Missouri, Oklahoma, Tennessee and Texas, along with credit card loans to customers throughout the United States. Commitments to extend credit are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Since a portion of the commitments may expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements. Each customer’s creditworthiness is evaluated on a case-by-case basis. The amount of collateral obtained, if deemed necessary, is based on management’s credit evaluation of the counterparty. Collateral held varies, but may include accounts receivable, inventory, property, plant and equipment, commercial real estate and residential real estate.

At September 30, 2021, the Company had outstanding commitments to extend credit aggregating approximately $684.6 million and $2.59 billion for credit card commitments and other loan commitments, respectively. At December 31, 2020, the Company had outstanding commitments to extend credit aggregating approximately $671.5 million and $2.36 billion for credit card commitments and other loan commitments, respectively.

As of September 30, 2021, the Company had outstanding commitments to originate fixed rate-rate mortgage loans of approximately $96.6 million. At December 31, 2020, the Company had outstanding commitments to originate fixed-rate mortgage loans of approximately $214.0 million. 

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Standby letters of credit are conditional commitments issued by the Company to guarantee the performance of a customer to a third party. Those guarantees are primarily issued to support public and private borrowing arrangements, including commercial paper, bond financing, and similar transactions. The credit risk involved in issuing letters of credit is essentially the same as that involved in extending loans to customers. The Company had total outstanding letters of credit amounting to $38.8 million and $49.0 million at September 30, 2021, and December 31, 2020, respectively, with terms ranging from 9 months to 15 years. At September 30, 2021 and December 31, 2020, the Company had no deferred revenue under standby letter of credit agreements.

The Company has purchased letters of credit from the FHLB as security for certain public deposits. The amount of the letters of credit was $69.0 million and $1.5 billion at September 30, 2021 and December 31, 2020, respectively, and they expire in less than one year from issuance.

NOTE 22: FAIR VALUE MEASUREMENTS

ASC Topic 820, Fair Value Measurements defines fair value, establishes a framework for measuring fair value and expands disclosures about fair value measurements.

ASC Topic 820 defines fair value as 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. The guidance also establishes a fair value hierarchy that requires the use of observable inputs and minimizes the use of unobservable inputs when measuring fair value. Topic 820 describes three levels of inputs that may be used to measure fair value: 

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

•Level 2 Inputs – Observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities in active markets; quoted prices for similar assets or liabilities 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 Inputs – Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities.

In general, fair value is based upon quoted market prices, where available. If such quoted market prices are not available, fair value is based upon internally developed models that primarily use, as inputs, observable market-based parameters. Valuation adjustments may be made to ensure that financial instruments are recorded at fair value. These adjustments may include amounts to reflect counterparty credit quality and the Company’s creditworthiness, among other things, as well as unobservable parameters. Any such valuation adjustments are applied consistently over time. The Company’s valuation methodologies may produce a fair value calculation that may not be indicative of net realizable value or reflective of future fair values. While management believes the Company’s valuation methodologies are appropriate and consistent with other market participants, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different estimate of fair value at the reporting date. Furthermore, the reported fair value amounts have not been comprehensively revalued since the presentation dates, and therefore, estimates of fair value after the balance sheet date may differ significantly from the amounts presented herein. A more detailed description of the valuation methodologies used for assets and liabilities measured at fair value, as well as the general classification of such instruments pursuant to the valuation hierarchy, is set forth below.

Following is a description of the inputs and valuation methodologies used for assets measured at fair value on a recurring basis and recognized in the accompanying consolidated balance sheets, as well as the general classification of such assets pursuant to the valuation hierarchy.

Available-for-sale securities – Where quoted market prices are available in an active market, securities are classified within Level 1 of the valuation hierarchy. Level 1 securities would include highly liquid government bonds, mortgage products and exchange traded equities. Other securities classified as available-for-sale are reported at fair value utilizing Level 2 inputs. For these securities, the Company obtains fair value measurements from an independent pricing service. The fair value measurements consider observable data that may include dealer quotes, market spreads, cash flows, the U.S. Treasury yield curve, live trading levels, trade execution data, market consensus prepayment speeds, credit information and the security’s terms and conditions, among other things. In order to ensure the fair values are consistent with ASC Topic 820, the Company periodically checks the fair values by comparing them to another pricing source, such as Bloomberg. The availability of pricing confirms Level 2 classification in the fair value hierarchy. The third-party pricing service is subject to an annual review of internal controls. In certain cases where Level 1 or Level 2 inputs are not available, securities are classified within Level 3 of the hierarchy. The Company’s investment in U.S. Treasury securities, if any, is reported at fair value utilizing Level 1 inputs. The remainder of the Company’s available-for-sale securities are reported at fair value utilizing Level 2 inputs.

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Mortgage loans held for sale – Mortgage loans held for sale are reported at fair value on an aggregate basis. Adjustments to fair value are recognized monthly and reflected in earnings. In determining the fair value of loans held for sale, the Company may consider outstanding investor commitments, discounted cash flow analyses with market assumptions or the fair value of the collateral if the loan is collateral dependent. Such loans are classified within either Level 2 or Level 3 of the fair value hierarchy. Where assumptions are made using significant unobservable inputs, such loans held for sale are classified as Level 3. At September 30, 2021 and December 31, 2020, the aggregate fair value of mortgage loans held for sale exceeded their cost.

Derivative instruments – The Company’s derivative instruments are reported at fair value utilizing Level 2 inputs. The Company obtains fair value measurements from dealer quotes.

Other liabilities held for sale – The Company’s other liabilities held for sale are reported at fair value utilizing Level 3 inputs. See Note 4, Other Liabilities Held for Sale.

The following table sets forth the Company’s financial assets by level within the fair value hierarchy that were measured at fair value on a recurring basis as of September 30, 2021 and December 31, 2020.

			Fair Value Measurements Using
(In thousands)	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
September 30, 2021
Available-for-sale securities
U.S. Treasury	$	300	$	300	$	—	$	—
U.S. Government agencies	354,382		—		354,382		—
Mortgage-backed securities	4,421,620		—		4,421,620		—
State and political subdivisions	1,575,208		—		1,575,208		—
Other securities	470,693		—		470,693		—
Mortgage loans held for sale	34,628		—		—		34,628
Derivative asset	31,609		—		31,609		—
Derivative liability	(17,825)		—		(17,825)		—
December 31, 2020
Available-for-sale securities
U.S. Government agencies	$	477,237	$	—	$	477,237	$	—
Mortgage-backed securities	1,394,936		—		1,394,936		—
States and political subdivisions	1,470,723		—		1,470,723		—
Other securities	130,702		—		130,702		—
Mortgage loans held for sale	137,378		—		—		137,378
Derivative asset	35,846		—		35,846		—
Other liabilities held for sale	(154,620)		—		—		(154,620)
Derivative liability	(36,141)		—		(36,141)		—

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Certain financial assets and liabilities are measured at fair value on a nonrecurring basis; that is, the instruments are not measured at fair value on an ongoing basis but are subject to fair value adjustments in certain circumstances. Financial assets and liabilities measured at fair value on a nonrecurring basis include the following:

Individually assessed loans (collateral-dependent) – When the Company has a specific expectation to initiate, or has initiated, foreclosure proceedings, and when the repayment of a loan is expected to be substantially dependent on the liquidation of underlying collateral, the relationship is deemed collateral-dependent. Fair value of the loan is determined by establishing an allowance for credit loss for any exposure based on the valuation of the underlying collateral. The valuation of the collateral is determined by either an independent third-party appraisal or other collateral analysis. Discounts can be made by the Company based upon the overall evaluation of the independent appraisal. Collateral-dependent loans are classified within Level 3 of the fair value hierarchy. Collateral values supporting the individually assessed loans are evaluated quarterly for updates to appraised values or adjustments due to non-current valuations.

Foreclosed assets and other real estate owned – Foreclosed assets and other real estate owned are reported at fair value, less estimated costs to sell. At foreclosure, if the fair value, less estimated costs to sell, of the real estate acquired is less than the Company’s recorded investment in the related loan, a write-down is recognized through a charge to the allowance for credit losses. Additionally, valuations are periodically performed by management and any subsequent reduction in value is recognized by a charge to income. The fair value of foreclosed assets and other real estate owned is estimated using Level 3 inputs based on unobservable market data.

The significant unobservable inputs (Level 3) used in the fair value measurement of collateral for collateral-dependent loans and foreclosed assets primarily relate to the specialized discounting criteria applied to the borrower’s reported amount of collateral. The amount of the collateral discount depends upon the condition and marketability of the collateral, as well as other factors which may affect the collectability of the loan. Management’s assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment and considers factors specific to the asset. It is reasonably possible that a change in the estimated fair value for instruments measured using Level 3 inputs could occur in the future. As the Company’s primary objective in the event of default would be to liquidate the collateral to settle the outstanding balance of the loan, collateral that is less marketable would receive a larger discount.

The following table sets forth the Company’s financial assets by level within the fair value hierarchy that were measured at fair value on a nonrecurring basis as of September 30, 2021 and December 31, 2020. 

			Fair Value Measurements Using
(In thousands)	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
September 30, 2021
Individually assessed loans (1) (2) (collateral-dependent)	$	31,075	$	—	$	—	$	31,075
Foreclosed assets and other real estate owned (1)	2,661		—		—		2,661
December 31, 2020
Individually assessed loans (1) (2) (collateral-dependent)	$	66,209	$	—	$	—	$	66,209
Foreclosed assets and other real estate owned (1)	17,074		—		—		17,074

________________________

(1)These amounts represent the resulting carrying amounts on the consolidated balance sheets for collateral-dependent loans and foreclosed assets and other real estate owned for which fair value re-measurements took place during the period.

(2)Identified reserves of $2,129,000 and $13,725,000 were related to collateral-dependent loans for which fair value re-measurements took place during the periods ended September 30, 2021 and December 31, 2020, respectively.

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ASC Topic 825, Financial Instruments, requires disclosure in annual and interim financial statements of the fair value of financial assets and financial liabilities, including those financial assets and financial liabilities that are not measured and reported at fair value on a recurring basis or nonrecurring basis. The following methods and assumptions were used to estimate the fair value of each class of financial instruments not previously disclosed.

Cash and cash equivalents – The carrying amount for cash and cash equivalents approximates fair value (Level 1).

Interest bearing balances due from banks – The fair value of interest bearing balances due from banks – time is estimated using a discounted cash flow calculation that applies the rates currently offered on deposits of similar remaining maturities (Level 2).

Held-to-maturity securities – Fair values for held-to-maturity securities equal quoted market prices, if available, such as for highly liquid government bonds (Level 1). If quoted market prices are not available, fair values are estimated based on quoted market prices of similar securities. For these securities, the Company obtains fair value measurements from an independent pricing service. The fair value measurements consider observable data that may include dealer quotes, market spreads, cash flows, the U.S. Treasury yield curve, live trading levels, trade execution data, market consensus prepayment speeds, credit information and the security’s terms and conditions, among other things (Level 2). In certain cases where Level 1 or Level 2 inputs are not available, securities are classified within Level 3 of the hierarchy.

Loans – The fair value of loans is estimated by discounting the future cash flows, using the current rates at which similar loans would be made to borrowers with similar credit ratings and for the same remaining maturities. Additional factors considered include the type of loan and related collateral, variable or fixed rate, classification status, remaining term, interest rate, historical delinquencies, loan to value ratios, current market rates and remaining loan balance. The loans were grouped together according to similar characteristics and were treated in the aggregate when applying various valuation techniques. The discount rates used for loans were based on current market rates for new originations of similar loans. Estimated credit losses were also factored into the projected cash flows of the loans. The fair value of loans is estimated on an exit price basis incorporating the above factors (Level 3).

Deposits – The fair value of demand deposits, savings accounts and money market deposits is the amount payable on demand at the reporting date (i.e., their carrying amount) (Level 2). The fair value of fixed-maturity time deposits is estimated using a discounted cash flow calculation that applies the rates currently offered for deposits of similar remaining maturities (Level 3).

Federal Funds purchased, securities sold under agreement to repurchase and short-term debt – The carrying amount for Federal funds purchased, securities sold under agreement to repurchase and short-term debt are a reasonable estimate of fair value (Level 2).

Other borrowings – For short-term instruments, the carrying amount is a reasonable estimate of fair value. For long-term debt, rates currently available to the Company for debt with similar terms and remaining maturities are used to estimate the fair value (Level 2).

Subordinated debentures – The fair value of subordinated debentures is estimated using the rates that would be charged for subordinated debentures of similar remaining maturities (Level 2).

Accrued interest receivable/payable – The carrying amounts of accrued interest approximated fair value (Level 2).

Commitments to extend credit, letters of credit and lines of credit – The fair value of commitments is estimated using the fees currently charged to enter into similar agreements, taking into account the remaining terms of the agreements and the present creditworthiness of the counterparties. For fixed rate loan commitments, fair value also considers the difference between current levels of interest rates and the committed rates. The fair values of letters of credit and lines of credit are based on fees currently charged for similar agreements or on the estimated cost to terminate or otherwise settle the obligations with the counterparties at the reporting date.

The fair value of a financial instrument is the current amount that would be exchanged between willing parties, other than in a forced liquidation. Fair value is best determined based upon quoted market prices. However, in many instances, there are no quoted market prices for the Company’s various financial instruments. In cases where quoted market prices are not available, fair values are based on estimates using present value or other valuation techniques. Those techniques are significantly affected by the assumptions used, including the discount rate and estimates of future cash flows. Accordingly, the fair value estimates may not be realized in an immediate settlement of the instrument.

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The estimated fair values, and related carrying amounts, of the Company’s financial instruments are as follows:

	Carrying		Fair Value Measurements
(In thousands)	Amount		Level 1		Level 2		Level 3		Total
September 30, 2021
Financial assets:
Cash and cash equivalents	$	1,781,413	$	1,781,413	$	—	$	—	$	1,781,413
Interest bearing balances due from banks - time	1,780		—		1,780		—		1,780
Held-to-maturity securities	1,516,797		—		1,487,916		—		1,487,916
Interest receivable	68,405		—		68,405		—		68,405
Loans, net	10,622,719		—		—		10,705,185		10,705,185
Financial liabilities:
Non-interest bearing transaction accounts	4,918,845		—		4,918,845		—		4,918,845
Interest bearing transaction accounts and savings deposits	10,697,451		—		10,697,451		—		10,697,451
Time deposits	2,455,774		—		—		2,460,441		2,460,441
Federal funds purchased and securities sold under agreements to repurchase	217,276		—		217,276		—		217,276
Other borrowings	1,338,585		—		1,408,087		—		1,408,087
Subordinated notes and debentures	383,278		—		395,786		—		395,786
Interest payable	11,230		—		11,230		—		11,230
December 31, 2020
Financial assets:
Cash and cash equivalents	$	3,472,152	$	3,472,152	$	—	$	—	$	3,472,152
Interest bearing balances due from banks - time	1,579		—		1,579		—		1,579
Held-to-maturity securities	333,031		—		341,925		—		341,925
Interest receivable	72,597		—		72,597		—		72,597
Loans, net	12,662,847		—		—		12,736,991		12,736,991
Financial liabilities:
Non-interest bearing transaction accounts	4,482,091		—		4,482,091		—		4,482,091
Interest bearing transaction accounts and savings deposits	9,672,608		—		9,672,608		—		9,672,608
Time deposits	2,832,327		—		—		2,848,621		2,848,621
Federal funds purchased and securities sold under agreements to repurchase	299,111		—		299,111		—		299,111
Other borrowings	1,342,067		—		1,448,625		—		1,448,625
Subordinated notes and debentures	382,874		—		398,827		—		398,827
Interest payable	8,887		—		8,887		—		8,887

The fair value of commitments to extend credit, letters of credit and lines of credit is not presented since management believes the fair value to be insignificant.

NOTE 23: DERIVATIVE INSTRUMENTS

The Company utilizes derivative instruments to manage exposure to various types of interest rate risk for itself and its customers within policy guidelines. Transactions should only be entered into with an associated underlying exposure. All derivative instruments are carried at fair value.

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Derivative contracts involve the risk of dealing with institutional derivative counterparties and their ability to meet contractual terms. Institutional counterparties must have an investment grade credit rating and be approved by the Company’s asset/liability management committee. In arranging these products for its customers, the Company assumes additional credit risk from the customer and from the dealer counterparty with whom the transaction is undertaken. Credit risk exists due to the default credit risk created in the exchange of the payments over a period of time. Credit exposure on interest rate swaps is limited to the net favorable value and interest payments of all swaps with each counterparty. Access to collateral in the event of default is reasonably assured. Therefore, credit exposure may be reduced by the amount of collateral pledged by the counterparty.

Hedge Structures

The Company will seek to enter derivative structures that most effectively address the risk exposure and structural terms of the underlying position being hedged. The term and notional principal amount of a hedge transaction will not exceed the term or principal amount of the underlying exposure. In addition, the Company will use hedge indices which are the same as, or highly correlated to, the index or rate on the underlying exposure. Derivative credit exposure is monitored on an ongoing basis for each customer transaction and aggregate exposure to each counterparty is tracked. The Company has set a maximum outstanding notional contract amount at 10% of the Company’s assets.

Fair Value Hedges

For derivative instruments that are designated and qualify as a fair value hedge, the gain or loss on the derivative instrument as well as the offsetting loss or gain on the hedged asset or liability attributable to the hedged risk are recognized in current earnings. The gain or loss on the derivative instrument is presented on the same income statement line item as the earnings effect of the hedged item. During the third quarter of 2021, the Company began utilizing interest rate swaps designated as fair value hedges to mitigate the effect of changing interest rates on the fair values of fixed rate callable AFS securities. The hedging strategy converts the fixed interest rates to variable interest rates based on federal funds rates.

The following table summarizes the fair value hedges recorded in the accompanying consolidated balance sheets.

				September 30, 2021				December 31, 2020
(In thousands)	Balance Sheet Location	Weighted Average Pay Rate	Receive Rate	Notional		Fair Value		Notional		Fair Value
Derivative assets	Other assets	1.21%	Federal Funds	$	1,001,715	$	13,948	$	—	$	—

Customer Risk Management Interest Rate Swaps

The Company’s qualified loan customers have the opportunity to participate in its interest rate swap program for the purpose of managing interest rate risk on their variable rate loans with the Company. The Company enters into such agreements with customers, then offsetting agreements are executed between the Company and an approved dealer counterparty to minimize market risk from changes in interest rates. The counterparty contracts are identical to customer contracts in terms of notional amounts, interest rates, and maturity dates, except for a fixed pricing spread or fee paid to the Company by the dealer counterparty. These interest rate swaps carry varying degrees of credit, interest rate and market or liquidity risks. The fair value of these derivative instruments is recognized as either derivative assets or liabilities in the accompanying consolidated balance sheets. The Company has a limited number of swaps that are standalone without a similar agreement with the loan customer.

The following table summarizes the fair values of loan derivative contracts recorded in the accompanying consolidated balance sheets.

	September 30, 2021				December 31, 2020
(In thousands)	Notional		Fair Value		Notional		Fair Value
Derivative assets	$	316,357	$	17,661	$	408,881	$	35,846
Derivative liabilities	320,001		17,825		417,941		36,141

Risk Participation Agreements

The Company has a limited number of Risk Participation Agreement swaps, that are associated with loan participations, where the Company is not the counterparty to the interest rate swaps that are associated with the risk participation sold. The interest rate swap mark to market only impacts the Company if the swap is in a liability position to the counterparty and the customer defaults on payments to the counterparty. The notional amount of these contingent agreements is $31.4 million as of September 30, 2021.

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Energy Hedging

The Company provides energy derivative services to qualifying, high quality oil and gas borrowers for hedging purposes. The Company serves as an intermediary on energy derivative products between the Company’s borrowers and dealers. The Company will only enter into back-to-back trades, thus maintaining a balanced book between the dealer and the borrower.

Energy hedging risk exposure to the Company’s customer increases as energy prices for crude oil and natural gas rise. As prices decrease, exposure to the exchange increases. These risks are mitigated by customer credit underwriting policies and establishing a predetermined hedge line for each borrower and by monitoring the exchange margin.

The outstanding notional value as of September 30, 2021 for energy hedging Customer Sell to Company swaps were $18.2 million and the corresponding Company Sell to Dealer swaps were $18.2 million and the corresponding net fair value of the derivative asset and derivative liability was $265,000.

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REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Stockholders, Board of Directors and Audit Committee

Simmons First National Corporation

Pine Bluff, Arkansas

Results of Review of Interim Financial Statements

We have reviewed the condensed consolidated balance sheet of Simmons First National Corporation and subsidiaries (“the Company”) as of September 30, 2021, and the related condensed consolidated statements of income, comprehensive income (loss) and stockholders’ equity for the three-month and nine-month periods ended September 30, 2021 and 2020, and cash flows for the nine-month periods ended September 30, 2021 and 2020, and the related notes (collectively referred to as the “interim financial information or statements”). Based on our reviews, we are not aware of any material modifications that should be made to the condensed consolidated financial statements referred to above for them to be in conformity with accounting principles generally accepted in the United States of America.

We have previously audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (“PCAOB”), the consolidated balance sheet of the Company and subsidiaries as of December 31, 2020, and the related consolidated statements of income, comprehensive income, stockholders’ equity and cash flows for the year then ended (not presented herein), and in our report dated February 25, 2021, we expressed an unqualified opinion on those consolidated financial statements. In our opinion, the information set forth in the accompanying condensed consolidated balance sheet as of December 31, 2020, is fairly stated, in all material respects, in relation to the consolidated balance sheet from which it has been derived.

Basis for Review Results

These financial statements are the responsibility of the Company’s management. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our reviews in accordance with the standards of the PCAOB. A review of interim financial information consists principally of applying analytical procedures and making inquiries of persons responsible for financial and accounting matters. It is substantially less in scope than an audit conducted in accordance with the standards of the PCAOB, the objective of which is the expression of an opinion regarding the financial statements taken as a whole. Accordingly, we do not express such an opinion.

 /s/ BKD, LLP

Little Rock, Arkansas

November 5, 2021

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Item 2.    Management’s Discussion and Analysis of Financial Condition and Results of Operations

OVERVIEW

Our net income for the three months ended September 30, 2021 was $80.6 million, or $0.74 diluted earnings per share, increases of $14.7 million and $0.14, respectively, compared to the third quarter of 2020. Included in both third quarter 2021 and 2020 results were non-core items related to our acquisitions and branch right sizing initiatives. Also included in 2020 results were non-core items related to early retirement programs. Excluding all non-core items, core earnings for the three months ended September 30, 2021 were $79.4 million, or $0.73 core diluted earnings per share, compared to $68.3 million, or $0.63 core diluted earnings per share for the three months ended September 30, 2020.

Net income for the first nine months of 2021 was $222.9 million, or $2.05 diluted earnings per share, compared to $201.9 million, or $1.83 diluted earnings per share, for the same period in 2020. In addition to the non-core items referenced above, gains associated with the sale of branch operations were included in the results for the first nine months of both 2021 and 2020. Excluding these non-core items, year-to-date core earnings were $218.8 million, an increase of $16.5 million compared to the same period in the prior year. Core diluted earnings per share for the first half of 2021 were $2.01 compared to $1.83 for the same period in 2020.

In June 2021, we announced the acquisitions of Landmark, previously based in Collierville, TN, and Triumph, previously based in Memphis, TN. These acquisitions were completed on October 8, 2021. We were able to obtain all necessary approvals, close and simultaneously complete the systems conversions of the two banks within approximately four months of the announcement, which we believe speaks to the outstanding team we have developed.

We continuously evaluate our branch network to ensure it reflects our core footprint and changes in customer behavior which allows us to efficiently serve our customers’ evolving needs. We closed 13 branches during July 2021 as part of our ongoing branch right sizing initiative.

Simmons Bank was named to Forbes magazine’s list of “World’s Best Banks” for the second consecutive year and ranked among the top 30 banks in Forbes’ list of “America’s Best Banks” for 2021. We continue to introduce new and innovative products and services using digital channels to provide an enhanced customer experience to “bank when you want, where you want”.

On March 12, 2021, we completed the sale of four Simmons Bank locations in the Metro East area of Southern Illinois, near St. Louis. We recognized a gain of $5.3 million on the sale of the Illinois branches.

We delivered solid performance in multiple areas while continuing to navigate the challenging environment. We are still feeling the effects of the COVID-19 pandemic in the economy and some industries are still struggling to return to pre-COVID levels of performance; however, our asset quality continued to show marked improvement during the third quarter of 2021. Nonperforming loans declined for the fourth consecutive quarter and are now at their lowest levels since December of 2018.

Stockholders’ equity as of September 30, 2021 was $3.0 billion, book value per share was $28.42 and tangible book value per share was $17.39. Our ratio of common stockholders’ equity to total assets was 13.04% and the ratio of tangible common stockholders’ equity to tangible assets was 8.41% at September 30, 2021. The Company’s Tier 1 leverage ratio of 9.07%, as well as our other regulatory capital ratios, remain significantly above the “well capitalized” guidelines (see Table 12 in the Capital section of this Item). We repurchased approximately 1.8 million shares of our common stock during the third quarter of 2021.

Total deposits were $18.1 billion at September 30, 2021, compared to $17.0 billion at December 31, 2020 and $16.2 billion at September 30, 2020. The increase in total deposits is, in significant part, a reflection of the multiple rounds of economic stimulus legislation in response to the COVID-19 pandemic that have created a rapid rise in liquidity and have led to changes in customer spending habits. Trends affected by the increase in customer cash balances are pay downs on loans, decreased loan demand, reduced credit card balances and fewer overdraft activities.

Total loans were $10.8 billion at September 30, 2021, compared to $12.9 billion at December 31, 2020 and $14.0 billion at September 30, 2020. Total loan production (loan originations and advances) during the third quarter of 2021 totaled $1.5 billion, which along with the production during the first half of the year positions us to exceed loan production volume reported for the full year of 2020. While loan originations and advances are outpacing prior year production, the decline in loan balances reflects, in significant part, the substantial government stimulus to support the economy during the COVID-19 pandemic which contributed to an increase in the level of loan paydowns, payoffs and corresponding sluggish loan demand throughout the financial services industry during the majority of 2021. In addition, the decline in balances has also been due to our strategic right-sizing of our commercial real estate construction portfolio as several large projects were completed.

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Our commercial pipeline rose for the fourth consecutive quarter to $1.5 billion and was up 15% from the prior quarter end and we are seeing activity from repeat customers across most of our business lines. For these reasons, amongst others, we are continuing to actively recruit loan producers across all of our business units.

As of September 30, 2021, we had $212.1 million in loans outstanding under the PPP. The change in total PPP loan balances during the third quarter of 2021 was as follows:

	PPP		PPP		Total
(Dollars in thousands)	Round 1		Round 2		PPP Loans
Beginning balance, January 1, 2021	$	904,673	$	—	$	904,673
PPP loan originations	—		318,919		318,919
PPP loan forgiveness and repayments	(882,295)		(129,210)		(1,011,505)
Ending balance, September 30, 2021	$	22,378	$	189,709	$	212,087

PPP loans are 100% federally guaranteed and have a zero percent risk-weight for regulatory capital ratios. As a result, excluding PPP loans from total assets, common equity to total assets was 13.16% and tangible common equity to tangible assets was 8.49% as of September 30, 2021.

We continue to closely monitor the COVID-19 pandemic and expect to make future changes to respond as this situation continues to evolve. Further economic downturns accompanying this pandemic, or a delayed economic recovery from this pandemic, could result in increased deterioration in credit quality, past due loans, loans charge offs and collateral value declines, which could cause our results of operations and financial condition to be negatively impacted.

In our discussion and analysis of our financial condition and results of operation in this Item 2, “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” we provide certain financial information determined by methods other than in accordance with US GAAP. We believe the presentation of non-GAAP financial measures provides a meaningful basis for period-to-period and company-to-company comparisons, which we believe will assist investors and analysts in analyzing the core financial measures of the Company and predicting future performance. See the GAAP Reconciliation of Non-GAAP Measures section below for additional discussion and reconciliations of non-GAAP measures.

Simmons First National Corporation is a Mid-South based financial holding company that, as of September 30, 2021, has approximately $23.2 billion in consolidated assets and, through its subsidiaries, conducts financial operations in Arkansas, Kansas, Missouri, Oklahoma, Tennessee and Texas.

CRITICAL ACCOUNTING POLICIES

Overview

We follow accounting and reporting policies that conform, in all material respects, to US GAAP and to general practices within the financial services industry. The preparation of financial statements in conformity with US GAAP requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. While we base estimates on historical experience, current information and other factors deemed to be relevant, actual results could differ from those estimates.

We consider accounting estimates to be critical to reported financial results if (i) the accounting estimate requires management to make assumptions about matters that are highly uncertain and (ii) different estimates that management reasonably could have used for the accounting estimate in the current period, or changes in the accounting estimate that are reasonably likely to occur from period to period, could have a material impact on our financial statements. 

The accounting policies that we view as critical to us are those relating to estimates and judgments regarding (a) the determination of the adequacy of the allowance for credit losses, (b) acquisition accounting and valuation of loans, (c) the valuation of goodwill and the useful lives applied to intangible assets, (d) the valuation of stock-based compensation plans and (e) income taxes.

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Allowance for Credit Losses

The allowance for credit losses is a reserve established through a provision for credit losses charged to expense, which represents management’s best estimate of lifetime expected losses based on reasonable and supportable forecasts, historical loss experience, and other qualitative considerations. The allowance, in the judgment of management, is necessary to reserve for expected credit losses and risks inherent in the loan portfolio. Our allowance for credit loss methodology includes reserve factors calculated to estimate current expected credit losses to amortized cost balances over the remaining contractual life of the portfolio, adjusted for prepayments, in accordance with ASC Topic 326-20, Financial Instruments - Credit Losses. Accordingly, the methodology is based on our reasonable and supportable economic forecasts, historical loss experience, and other qualitative adjustments. For further information see the section Allowance for Credit Losses below.

Our evaluation of the allowance for credit losses is inherently subjective as it requires material estimates. The actual amounts of credit losses realized in the near term could differ from the amounts estimated in arriving at the allowance for credit losses reported in the financial statements. On January 1, 2020, the Company adopted the new CECL methodology. See Note 1, Preparation of Interim Financial Statements, in the accompanying Condensed Notes to Consolidated Financial Statements for additional information.

Acquisition Accounting, Loans

We account for our acquisitions under ASC Topic 805, Business Combinations, which requires the use of the acquisition method of accounting. All identifiable assets acquired, including loans, are recorded at fair value. In accordance with ASC 326, we record both a discount and an allowance for credit losses on acquired loans. Loans acquired are recorded at fair value in accordance with the fair value methodology prescribed in ASC Topic 820. The fair value estimates associated with the loans included estimates related to expected prepayments and the amount and timing of undiscounted expected principal, interest and other cash flows.

We evaluate loans acquired in accordance with the provisions of ASC Topic 310-20, Nonrefundable Fees and Other Costs. The fair value discount on these loans is accreted into interest income over the weighted average life of the loans using a constant yield method.

Goodwill and Intangible Assets

Goodwill represents the excess of the cost of an acquisition over the fair value of the net assets acquired. Other intangible assets represent purchased assets that also lack physical substance but can be separately distinguished from goodwill because of contractual or other legal rights or because the asset is capable of being sold or exchanged either on its own or in combination with a related contract, asset or liability. We perform an annual goodwill impairment test, and more than annually if circumstances warrant, in accordance with ASC Topic 350, Intangibles – Goodwill and Other, as amended by ASU 2011-08 – Testing Goodwill for Impairment and ASU 2017-04 - Intangibles – Goodwill and Other. ASC Topic 350 requires that goodwill and intangible assets that have indefinite lives be reviewed for impairment annually or more frequently if certain conditions occur. Impairment losses on recorded goodwill, if any, will be recorded as operating expenses.

Stock-Based Compensation Plans

We have adopted various stock-based compensation plans. The plans provide for the grant of incentive stock options, nonqualified stock options, stock appreciation rights, restricted stock awards, restricted stock units and performance stock units. Pursuant to the plans, shares are reserved for future issuance by the Company upon exercise of stock options or awarding of restricted stock, restricted stock units or performance stock units granted to directors, officers and other key employees.

In accordance with ASC Topic 718, Compensation – Stock Compensation, the fair value of each option award is estimated on the date of grant using the Black-Scholes option-pricing model that uses various assumptions. This model requires the input of highly subjective assumptions, changes to which can materially affect the fair value estimate. For additional information, see Note 16, Stock-Based Compensation, in the accompanying Condensed Notes to Consolidated Financial Statements included elsewhere in this report.

Income Taxes

We are subject to the federal income tax laws of the United States, and the tax laws of the states and other jurisdictions where we conduct business. Due to the complexity of these laws, taxpayers and the taxing authorities may subject these laws to different interpretations. Management must make conclusions and estimates about the application of these innately intricate laws, related regulations, and case law. When preparing the Company’s income tax returns, management attempts to make reasonable

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interpretations of the tax laws. Taxing authorities have the ability to challenge management’s analysis of the tax law or any reinterpretation management makes in its ongoing assessment of facts and the developing case law. Management assesses the reasonableness of its effective tax rate quarterly based on its current estimate of net income and the applicable taxes expected for the full year. On a quarterly basis, management also reviews circumstances and developments in tax law affecting the reasonableness of deferred tax assets and liabilities and reserves for contingent tax liabilities.

NET INTEREST INCOME

Overview

Net interest income, our principal source of earnings, is the difference between the interest income generated by earning assets and the total interest cost of the deposits and borrowings obtained to fund those assets. Factors that determine the level of net interest income include the volume of earning assets and interest bearing liabilities, yields earned and rates paid, the level of non-performing loans and the amount of non-interest bearing liabilities supporting earning assets. Net interest income is analyzed in the discussion and tables below on a fully taxable equivalent basis. The adjustment to convert certain income to a fully taxable equivalent basis consists of dividing tax-exempt income by one minus the combined federal and state income tax rate of 26.135%.

Our practice is to limit exposure to interest rate movements by maintaining a significant portion of earning assets and interest bearing liabilities in short-term repricing. In the last several years, on average, approximately 41% of our loan portfolio and approximately 74% of our time deposits have repriced in one year or less. Our current interest rate sensitivity shows that approximately 43% of our loans and 84% of our time deposits will reprice in the next year.

Net Interest Income Quarter-to-Date Analysis

For the three month period ended September 30, 2021, net interest income on a fully taxable equivalent basis was $150.2 million, a decrease of $6.3 million, or 4.0%, over the same period in 2020. The decrease in net interest income was primarily the result of a $13.7 million decrease in fully tax equivalent interest income partially offset by a $7.4 million decrease in interest expense.

The reduction in interest income primarily resulted from a $31.0 million decrease in interest income on loans partially offset by an increase of $17.9 million in interest income on investment securities. Regarding the decrease in interest income on loans during the third quarter of 2021, the decline in loan volume resulted in a decrease $39.1 million, partially offset by $8.1 million of interest income from a 22 basis point increase in loan yield. The loan yield for the third quarter of 2021 was 4.76% compared to 4.54% from the same period in 2020. We generated additional interest income on investment securities by redeploying a portion of excess cash to purchase $1.2 billion of investment securities during the third quarter of 2021, which included $226.3 million of short-term, variable rate securities.

The $7.4 million decrease in interest expense is mostly due to the decline in our deposit account rates. Interest expense decreased $7.2 million due to the decrease in yield of 27 basis points on interest-bearing deposit accounts.

Net Interest Income Year-to-Date Analysis

For the nine month period ended September 30, 2021, net interest income on a fully taxable equivalent basis was $452.1 million, a decrease of $40.2 million, or 8.2%, over the same period in 2020. The decrease in net interest income was the result of a $74.1 million decrease in fully tax equivalent interest income partially offset by a $34.0 million decrease in interest expense.

The decrease in interest income during the nine month period ended September 30, 2021 primarily resulted from a $110.3 million decrease in interest income on loans, that reflects a decrease in loan volume of $98.2 million coupled with an 11 basis point decline in yield that resulted in a $12.1 million decrease, partially offset by an increase in interest income on investment securities of $38.3 million. The decrease in our loan volume during the first nine months of 2021 was primarily due to weak loan demand throughout 2020 and into the first nine months of 2021 as a result of the COVID-19 pandemic. Furthermore, the decline in loan volume also reflects the substantial governmental stimulus to support the economy during the COVID-19 pandemic which contributed to an increase in the level of loan paydowns and payoffs, including loan forgiveness in accordance with the PPP.

We sold approximately $342.6 million of investment securities during the first nine months of 2021 compared to $1.7 billion of investment securities during the same period in 2020. During the second quarter of 2020, in response to the unfolding events of the COVID-19 pandemic, we focused on the creation of additional liquidity and strengthening our balance sheet. We began to re-invest in our investment security portfolio during the fourth quarter of 2020 and continued throughout the nine month period ended September 30, 2021.

53

The $34.0 million decrease in interest expense is mostly due to the decrease in our deposit account rates. Interest expense decreased $34.5 million due to the decrease in rate of 39 basis points on interest-bearing deposit accounts, partially offset by an increase of $2.1 million related to approximately $1.1 billion in average deposit growth.

Net Interest Margin

Our net interest margin on a fully tax equivalent basis decreased 36 basis points to 2.85% for the three month period ended September 30, 2021, when compared to 3.21% for the same period in 2020. Normalized for all accretion, our core net interest margin for the three months ended September 30, 2021 and 2020 was 2.77% and 3.02%, respectively. For the nine month period ended September 30, 2021, our net interest margin decreased 52 basis points to 2.91% when compared to 3.43% for the same period in 2020.

The decreases in the net interest margin during the three and nine months ended September 30, 2021 compared to the same periods in 2020, were primarily due to the aforementioned decline in net interest income coupled with a $934.7 million increase in average cash and equivalents driven by the lower interest rate environment and additional liquidity created in response to the COVID-19 pandemic. We purchased investment securities which added approximately $3.5 billion to our average investment securities portfolio during the first nine months of 2021. The impact of these items on net interest margin for the nine months ended September 30, 2021 was 18 basis points, bringing the net interest margin adjusted for PPP loans and additional liquidity to 3.09%.

During March 2020, the Federal Open Market Committee, or FOMC, of the Federal Reserve substantially reduced interest rates in response to the economic crisis brought on by the COVID-19 pandemic and rates have continued to remain at historically low levels through the third quarter of 2021. As such, our variable rate loan portfolio has repriced to a lower yield and, in response to offset the decline, we have worked to lower our cost of deposits. In addition, our decreased net interest margin is being driven by the decrease in our non-PPP loan portfolio as a result of COVID-19 but our loan pipeline has started to rebuild and we expect modest organic loan growth during the last quarter of 2021.

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Net Interest Income Tables

Tables 1 and 2 reflect an analysis of net interest income on a fully taxable equivalent basis for the three and nine months ended September 30, 2021 and 2020, respectively.

Table 1: Analysis of Net Interest Margin

(FTE = Fully Taxable Equivalent using an effective tax rate of 26.135%)

	Three Months Ended September 30,						Nine Months Ended September 30,
(In thousands)	2021			2020			2021			2020
Interest income	$	163,926		$	179,725		$	500,329		$	580,610
FTE adjustment	4,941			2,864			13,652			7,519
Interest income – FTE	168,867			182,589			513,981			588,129
Interest expense	18,689			26,115			61,878			95,836
Net interest income – FTE	$	150,178		$	156,474		$	452,103		$	492,293
Yield on earning assets – FTE	3.21		%	3.74		%	3.31		%	4.10		%
Cost of interest bearing liabilities	0.49		%	0.74		%	0.54		%	0.90		%
Net interest spread – FTE	2.72		%	3.00		%	2.77		%	3.20		%
Net interest margin – FTE	2.85		%	3.21		%	2.91		%	3.43		%

Table 2: Changes in Fully Taxable Equivalent Net Interest Margin 

	Three Months Ended September 30,		Nine Months Ended September 30,
(In thousands)	2021 vs. 2020		2021 vs. 2020
Decrease due to change in earning assets	$	(16,818)	$	(43,521)
Increase (decrease) due to change in earning asset yields	3,096		(30,627)
Increase (decrease) due to change in interest bearing liabilities	93		(1,472)
Increase due to change in interest rates paid on interest bearing liabilities	7,333		35,430
Decrease in net interest income	$	(6,296)	$	(40,190)

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Table 3 shows, for each major category of earning assets and interest bearing liabilities, the average (computed on a daily basis) amount outstanding, the interest earned or expensed on such amount and the average rate earned or expensed for the three and nine months ended September 30, 2021 and 2020. The table also shows the average rate earned on all earning assets, the average rate expensed on all interest bearing liabilities, the net interest spread and the net interest margin for the same periods. The analysis is presented on a fully taxable equivalent basis. Nonaccrual loans were included in average loans for the purpose of calculating the rate earned on total loans.

Table 3: Average Balance Sheets and Net Interest Income Analysis

(FTE = Fully Taxable Equivalent using an effective tax rate of 26.135%)

	Three Months Ended September 30,
	2021					2020
	Average		Income/		Yield/	Average		Income/		Yield/
(In thousands)	Balance		Expense		Rate (%)	Balance		Expense		Rate (%)
ASSETS
Earning assets:
Interest bearing balances due from banks and federal funds sold	$	1,866,530	$	763	0.16	$	2,265,233	$	623	0.11
Investment securities - taxable	5,475,932		17,076		1.24	1,534,742		7,193		1.86
Investment securities - non-taxable	2,496,958		18,399		2.92	1,155,099		10,382		3.58
Mortgage loans held for sale	32,134		230		2.84	145,226		1,012		2.77
Loans - including fees	11,030,438		132,399		4.76	14,315,014		163,379		4.54
Total interest earning assets	20,901,992		168,867		3.21	19,415,314		182,589		3.74
Non-earning assets	2,353,549					2,350,007
Total assets	$	23,255,541				$	21,765,321
LIABILITIES AND STOCKHOLDERS’ EQUITY
Liabilities:
Interest bearing liabilities:
Interest bearing transaction and savings deposits	$	10,629,142	$	4,369	0.16	$	8,977,886	$	6,769	0.30
Time deposits	2,645,896		4,747		0.71	2,998,091		9,437		1.25
Total interest bearing deposits	13,275,038		9,116		0.27	11,975,977		16,206		0.54
Federal funds purchased and securities sold under agreements to repurchase	219,604		70		0.13	386,631		335		0.34
Other borrowings	1,338,866		4,893		1.45	1,357,278		4,943		1.45
Subordinated debt and debentures	383,213		4,610		4.77	382,672		4,631		4.81
Total interest bearing liabilities	15,216,721		18,689		0.49	14,102,558		26,115		0.74
Non-interest bearing liabilities:
Non-interest bearing deposits	4,803,171					4,529,782
Other liabilities	167,677					190,169
Total liabilities	20,187,569					18,822,509
Stockholders’ equity	3,067,972					2,942,812
Total liabilities and stockholders’ equity	$	23,255,541				$	21,765,321
Net interest spread – FTE					2.72					3.00
Net interest margin – FTE			$	150,178	2.85			$	156,474	3.21

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	Nine Months Ended September 30,
	2021					2020
	Average		Income/		Yield/	Average		Income/		Yield/
(In thousands)	Balance		Expense		Rate (%)	Balance		Expense		Rate (%)
ASSETS
Earning assets:
Interest bearing balances due from banks and federal funds sold	$	2,676,911	$	2,212	0.11	$	1,742,166	$	3,667	0.28
Investment securities - taxable	4,081,927		41,790		1.37	1,832,577		27,319		1.99
Investment securities - non-taxable	2,193,431		50,737		3.09	974,748		26,888		3.68
Mortgage loans held for sale	59,362		1,255		2.83	91,889		1,961		2.85
Loans - including fees	11,772,077		417,987		4.75	14,530,938		528,294		4.86
Total interest earning assets	20,783,708		513,981		3.31	19,172,318		588,129		4.10
Non-earning assets	2,302,279					2,331,246
Total assets	$	23,085,987				$	21,503,564
LIABILITIES AND STOCKHOLDERS’ EQUITY
Liabilities:
Interest bearing liabilities:
Interest bearing transaction and savings deposits	$	10,377,609	$	15,178	0.20	$	9,040,053	$	31,926	0.47
Time deposits	2,871,519		17,899		0.83	3,068,459		33,563		1.46
Total interest bearing deposits	13,249,128		33,077		0.33	12,108,512		65,489		0.72
Federal funds purchased and securities sold under agreements to repurchase	255,684		507		0.27	370,116		1,431		0.52
Other borrowings	1,339,970		14,592		1.46	1,357,543		14,783		1.45
Subordinated debt and debentures	383,078		13,702		4.78	386,129		14,133		4.89
Total interest bearing liabilities	15,227,860		61,878		0.54	14,222,300		95,836		0.90
Non-interest bearing liabilities:
Non-interest bearing deposits	4,684,485					4,164,189
Other liabilities	165,694					205,942
Total liabilities	20,078,039					18,592,431
Stockholders’ equity	3,007,948					2,911,133
Total liabilities and stockholders’ equity	$	23,085,987				$	21,503,564
Net interest spread – FTE					2.77					3.20
Net interest margin – FTE			$	452,103	2.91			$	492,293	3.43

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Table 4 shows changes in interest income and interest expense resulting from changes in both volume and interest rates for the three and nine month periods ended September 30, 2021, as compared to the same periods of the prior year. The changes in interest rate and volume have been allocated to changes in average volume and changes in average rates in proportion to the relationship of absolute dollar amounts of the changes in rates and volume.

Table 4: Volume/Rate Analysis 

	Three Months Ended September 30,						Nine Months Ended September 30,
	2021 vs. 2020						2021 vs. 2020
(In thousands, on a fully taxable equivalent basis)	Volume		Yield/ Rate		Total		Volume		Yield/ Rate		Total
Increase (decrease) in:
Interest income:
Interest bearing balances due from banks and federal funds sold	$	(124)	$	264	$	140	$	1,407	$	(2,862)	$	(1,455)
Investment securities - taxable	13,003		(3,120)		9,883		25,164		(10,693)		14,471
Investment securities - non-taxable	10,180		(2,163)		8,017		28,811		(4,962)		23,849
Mortgage loans held for sale	(808)		26		(782)		(688)		(18)		(706)
Loans - including fees	(39,069)		8,089		(30,980)		(98,215)		(12,092)		(110,307)
Total	(16,818)		3,096		(13,722)		(43,521)		(30,627)		(74,148)
Interest expense:
Interest bearing transaction and savings accounts	1,082		(3,482)		(2,400)		4,166		(20,914)		(16,748)
Time deposits	(1,007)		(3,683)		(4,690)		(2,034)		(13,630)		(15,664)
Federal funds purchased and securities sold under agreements to repurchase	(108)		(157)		(265)		(358)		(566)		(924)
Other borrowings	(67)		17		(50)		(191)		—		(191)
Subordinated notes and debentures	7		(28)		(21)		(111)		(320)		(431)
Total	(93)		(7,333)		(7,426)		1,472		(35,430)		(33,958)
Decrease in net interest income	$	(16,725)	$	10,429	$	(6,296)	$	(44,993)	$	4,803	$	(40,190)

PROVISION FOR CREDIT LOSSES

The provision for credit losses represents management’s determination of the amount necessary to be charged against the current period’s earnings in order to maintain the allowance for credit losses at a level considered appropriate in relation to the estimated lifetime risk inherent in the loan portfolio. The level of provision to the allowance is based on management’s judgment, with consideration given to the composition, maturity and other qualitative characteristics of the portfolio, assessment of current economic conditions, reasonable and supportable forecasts, past due and non-performing loans and historical net credit loss experience. It is management’s practice to review the allowance on a monthly basis and, after considering the factors previously noted, to determine the level of provision made to the allowance.

The provision for credit losses for the three and nine months ended September 30, 2021 was a recapture of $19.9 million and $31.4 million, respectively, compared to an expense of $23.0 million and $68.0 million for the same periods ended September 30, 2020. The recapture of credit losses was driven by improved credit quality metrics and improved macroeconomic factors. The increase during the nine month period ended September 30, 2020 included provision related to problem energy credits which were negatively impacted by the sharp decline in commodity pricing, and ultimately charged-off during the second quarter of 2020 for a total of $32.6 million. In addition, uncertain economic forecasts during the first nine months of 2020 due to the impact of the COVID-19 pandemic drove higher provisions for credit losses during that period, a portion of which has been subsequently released.

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NON-INTEREST INCOME

Non-interest income is principally derived from recurring fee income, which includes service charges, trust fees and debit and credit card fees. Non-interest income also includes income on the sale of mortgage and SBA loans, investment banking income, income from the increase in cash surrender values of bank owned life insurance and gains (losses) from sales of securities.

Total non-interest income was $48.6 million for the three month period September 30, 2021, a decrease of approximately $20.9 million, or 30.1%, compared to the same period in 2020, primarily driven by decreases in mortgage lending income and the difference in gains on sale of securities recognized during the periods. Conversely, we had increases in total service charges on deposit accounts and fees of $1.4 million, or 11.3%, primarily attributable to additional customer transactions related to changes in customer spending habits during the third quarter of 2021.

For the nine month period ended September 30, 2021, total non-interest income was $145.2 million, a decrease of approximately $52.8 million, or 26.7%, compared to the same period in 2020, primarily due to decreases in the gains on sale of securities and mortgage lending income. During the first nine months of 2021, we sold approximately $342.6 million of investment securities resulting in a net gain of $15.8 million, compared to $1.7 billion of investment securities sold for a net gain of $54.8 million in the first nine months of 2020. Additionally, the gain on sale of branches, which we consider a non-core item, decreased approximately $2.8 million, compared to the same period in 2020. An increase of $2.5 million in debit and credit fees partially offset the overall decrease in non-interest income during the first nine months of 2021 as a result of additional transactions due to the changes in customer spending habits.

Decreases of $8.2 million and $14.7 million in mortgage lending income for the three and nine month periods ended September 30, 2021 were largely a result of decreases in the value of derivative contracts related to the mortgage banking operations partially offset by gains on the sale of mortgage loans that were driven by an increase in volume of loans sold during the first nine months of 2021 compared to the same period in 2020. Beginning in 2020 and continuing into 2021, we experienced an increase in mortgage lending transactions as a result of the low mortgage interest rate environment due to the COVID-19 pandemic. However, we expect mortgage lending volume to continue to decline for the remainder of 2021 given the current environment.

Table 5 shows non-interest income for the three and nine month periods ended September 30, 2021 and 2020, respectively, as well as changes in 2021 from 2020.

Table 5: Non-Interest Income

	Three Months Ended September 30,				2021 Change from			Nine Months Ended September 30,				2021 Change from
(Dollars in thousands)	2021		2020		2020			2021		2020		2020
Trust income	$	7,145	$	6,744	$	401	6.0%	$	21,049	$	21,148	$	(99)	(0.5)%
Service charges on deposit accounts	11,557		10,385		1,172		11.3	31,322		32,283		(961)		(3.0)
Other service charges and fees	1,964		1,764		200		11.3	5,934		4,841		1,093		22.6
Mortgage lending income	5,818		13,971		(8,153)		(58.4)	16,755		31,476		(14,721)		(46.8)
SBA lending income	191		304		(113)		(37.2)	718		845		(127)		(15.0)
Investment banking income	732		557		175		31.4	2,081		2,005		76		3.8
Debit and credit card fees (1)	7,102		6,478		624		9.6	20,785		18,296		2,489		13.6
Bank owned life insurance income	2,573		1,591		982		61.7	6,134		4,334		1,800		41.5
Gain on sale of securities, net	5,248		22,305		(17,057)		(76.5)	15,846		54,790		(38,944)		(71.1)
Gain on sale of branches	—		—		—		—	5,316		8,093		(2,777)		(34.3)
Other income	6,220		5,380		840		15.6	19,274		19,897		(623)		(3.1)
Total non-interest income	$	48,550	$	69,479	$	(20,929)	(30.1)%	$	145,214	$	198,008	$	(52,794)	(26.7)%

_________________________

(1)    During the second and third quarters of 2021, certain debit and credit card transaction fees were reclassified from non-interest expense to non-interest income. Prior periods have been adjusted to reflect this reclassification.

Recurring fee income (total service charges, trust fees, debit and credit card fees) for the three month period ended September 30, 2021 was $27.8 million, an increase of $2.4 million from the same period in 2020. Recurring fee income for the nine month period ended September 30, 2021, was $79.1 million, an increase of $2.5 million from the nine month period ended September 30, 2020. The increases in the periods presented are primarily the result of changes in total service charges and debit and credit card fees, previously discussed.

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NON-INTEREST EXPENSE

Non-interest expense consists of salaries and employee benefits, occupancy, equipment, foreclosure losses and other expenses necessary for our operations. Management remains committed to controlling the level of non-interest expense through the continued use of expense control measures. We utilize an extensive profit planning and reporting system involving all subsidiaries. Based on a needs assessment of the business plan for the upcoming year, monthly and annual profit plans are developed, including manpower and capital expenditure budgets. These profit plans are subject to extensive initial reviews and monitored by management monthly. Variances from the plan are reviewed monthly and, when required, management takes corrective action intended to ensure financial goals are met. We also regularly monitor staffing levels at each subsidiary to ensure productivity and overhead are in line with existing workload requirements.

For the three month period ended September 30, 2021, non-interest expense was $114.3 million, a decrease of $2.2 million, or 1.9%, from the three month period ended September 30, 2020. Salaries and employee benefits expense increased $3.1 million during the three month period of 2021 due to associates being hired in lending, wealth and mortgage as we continue to actively recruit new producers.

Non-interest expense for the nine months ended September 30, 2021 was $342.0 million, a decrease of $16.9 million, or 4.7%, from the same period in 2020. Normalizing for the non-core costs, core non-interest expense for the nine months ended September 30, 2021 decreased $8.0 million, or 2.3%, from the same period in 2020.

The decreases in non-interest expense were primarily related to the realization of expected synergies from the continuous evaluation of our branch network and the branch sales and closures that began in 2020 and have continued in 2021. Additionally, salaries and employee benefits expense during the nine month period September 30, 2021 was impacted by savings resulting from the early retirement program offered in the prior year.

Table 6 below shows non-interest expense for the three and nine month periods ended September 30, 2021 and 2020, respectively, as well as changes in 2021 from 2020.

Table 6: Non-Interest Expense 

	Three Months Ended September 30,				2021 Change from			Nine Months Ended September 30,				2021 Change from
(Dollars in thousands)	2021		2020		2020			2021		2020		2020
Salaries and employee benefits	$	61,902	$	58,798	$	3,104	5.3%	$	182,503	$	183,873	$	(1,370)	(0.8)%
Early retirement expense	—		2,346		(2,346)		(100.0)	—		2,839		(2,839)		(100.0)
Occupancy expense, net	9,361		9,647		(286)		(3.0)	27,764		28,374		(610)		(2.2)
Furniture and equipment expense	4,895		6,231		(1,336)		(21.4)	15,169		18,098		(2,929)		(16.2)
Other real estate and foreclosure expense	339		602		(263)		(43.7)	1,545		1,201		344		28.6
Deposit insurance	1,870		2,244		(374)		(16.7)	4,865		7,557		(2,692)		(35.6)
Merger related costs	1,401		902		499		55.3	2,320		3,800		(1,480)		(39.0)
Other operating expenses:
Professional services	4,399		3,779		620		16.4	14,207		13,529		678		5.0
Postage	1,964		1,932		32		1.7	6,277		5,937		340		5.7
Telephone	1,516		2,103		(587)		(28.0)	4,758		6,738		(1,980)		(29.4)
Debit and credit card (1)	2,727		2,818		(91)		(3.2)	7,588		7,690		(102)		(1.3)
Marketing	5,019		3,517		1,502		42.7	12,912		11,430		1,482		13.0
Software and technology	10,134		9,552		582		6.1	30,242		29,021		1,221		4.2
Operating supplies	605		824		(219)		(26.6)	2,013		2,588		(575)		(22.2)
Amortization of intangibles	3,332		3,362		(30)		(0.9)	10,008		10,144		(136)		(1.3)
Branch right sizing	(3,280)		442		(3,722)		*	(2,187)		2,401		(4,588)		(191.1)
Other	8,149		7,478		671		9.0	22,008		23,676		(1,668)		(7.1)
Total non-interest expense	$	114,333	$	116,577	$	(2,244)	(1.9)%	$	341,992	$	358,896	$	(16,904)	(4.7)%

_________________________

(1)    During the second and third quarters of 2021, certain debit and credit card transaction fees were reclassified from non-interest expense to non-interest income. Prior periods have been adjusted to reflect this reclassification.

*    Not meaningful

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INVESTMENTS AND SECURITIES

Our securities portfolio is the second largest component of earning assets and provides a significant source of revenue. Securities within the portfolio are classified as either HTM or AFS. Our philosophy regarding investments is conservative based on investment type and maturity. Investments in the portfolio primarily include U.S. Treasury securities, U.S. Government agencies, MBS and municipal securities. Our general policy is not to invest in derivative type investments or high-risk securities, except for collateralized MBS for which collection of principal and interest is not subordinated to significant superior rights held by others.

HTM and AFS investment securities were $1.5 billion and $6.8 billion, respectively, at September 30, 2021, compared to the HTM amount of $333.0 million and AFS amount of $3.5 billion at December 31, 2020. As anticipated, our security portfolio increased during the first nine months of 2021 as we reinvested PPP loan repayments and utilized additional liquidity held in cash and cash equivalents. During the third quarter of 2021, we purchased $1.2 billion of investment securities, including strategically redeploying $226.3 million of excess cash into short-term, variable rate securities. We will continue to look for opportunities to maximize the value of the investment portfolio.

Management has the ability and intent to hold the securities classified as HTM until they mature, at which time we expect to receive full value for the securities. The contractual terms of those investments do not permit the issuer to settle the securities at a price less than the amortized cost bases of the investments. Furthermore, as of September 30, 2021, management also had the ability and intent to hold the securities classified as AFS for a period of time sufficient for a recovery of cost. The unrealized losses are largely due to increases in market interest rates over the yields available at the time the underlying securities were purchased. The fair value is expected to recover as the bonds approach their maturity date or repricing date or if market yields for such investments decline. Management does not believe any of the securities are impaired due to reasons of credit quality.

During the third quarter of 2021, the Company began utilizing interest rate swaps designated as fair value hedges to mitigate the effect of changing interest rates on the fair values of $1.0 billion of fixed rate callable municipal securities held in the AFS portfolio. These swap agreements involve the payment of fixed interest rates with a weighted average of 1.21% in exchange for variable interest rates based on federal funds rates and consist of a two year forward start date and maturity dates varying between 2028 and 2029.

LOAN PORTFOLIO

Our loan portfolio averaged $11.77 billion and $14.53 billion during the first nine months of 2021 and 2020, respectively. As of September 30, 2021, total loans were $10.83 billion, a decrease of $2.1 billion from December 31, 2020. The decline in the average loan balance during the first nine months of 2021 when compared to the same period in 2020 was due to the tepid loan demand that began in late first quarter of 2020 and has continued through 2021 largely as a result of the economic uncertainty stemming from the COVID-19 pandemic. The most significant components of the loan portfolio were loans to businesses (commercial loans, commercial real estate loans and agricultural loans) and individuals (consumer loans, credit card loans and single-family residential real estate loans).

We seek to manage our credit risk by diversifying our loan portfolio, determining that borrowers have adequate sources of cash flow for loan repayment without liquidation of collateral, obtaining and monitoring collateral, providing an appropriate allowance for credit losses and regularly reviewing loans through the internal loan review process. The loan portfolio is diversified by borrower, purpose, industry and geographic region. We seek to use diversification within the loan portfolio to reduce credit risk, thereby minimizing the adverse impact on the portfolio, if weaknesses develop in either the economy or a particular segment of borrowers. Collateral requirements are based on credit assessments of borrowers and may be used to recover the debt in case of default. We use the allowance for credit losses as a method to value the loan portfolio at its estimated collectible amount. Loans are regularly reviewed to facilitate the identification and monitoring of deteriorating credits.

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The balances of loans outstanding at the indicated dates are reflected in Table 7, according to type of loan.

Table 7: Loan Portfolio 

	September 30,		December 31,
(In thousands)	2021		2020
Consumer:
Credit cards	$	175,884	$	188,845
Other consumer	182,492		202,379
Total consumer	358,376		391,224
Real estate:
Construction and development	1,229,740		1,596,255
Single family residential	1,540,701		1,880,673
Other commercial	5,308,902		5,746,863
Total real estate	8,079,343		9,223,791
Commercial:
Commercial	1,821,905		2,574,386
Agricultural	216,735		175,905
Total commercial	2,038,640		2,750,291
Other	348,868		535,591
Total loans before allowance for credit losses	$	10,825,227	$	12,900,897

Consumer loans consist of credit card loans and other consumer loans. Consumer loans were $358.4 million at September 30, 2021, or 3.3% of total loans, compared to $391.2 million, or 3.0% of total loans at December 31, 2020. The decrease in consumer loans from December 31, 2020, to September 30, 2021, was primarily due to the expected seasonal decline in our credit card portfolio as well as loan payoffs and pay downs due to additional customer liquidity driven by the government economic stimulus programs in response to the COVID-19 pandemic.

Real estate loans consist of C&D loans, single-family residential loans and CRE loans. Real estate loans were $8.08 billion at September 30, 2021, or 74.6% of total loans, compared to $9.22 billion, or 71.5%, of total loans at December 31, 2020, a decrease of $1.1 billion, or 12.4%. Our C&D loans decreased by $366.5 million, or 23.0%, single family residential loans decreased by $340.0 million, or 18.1%, and CRE loans decreased by $438.0 million, or 7.6%. The decreases were largely due to less activity as a result of the pandemic and our effort to manage our real estate portfolio concentration. In the near term, we expect to continue to manage our C&D and CRE portfolio concentration by developing deeper relationships with our customers.

Commercial loans consist of non-real estate loans related to business and agricultural loans. Total commercial loans were $2.04 billion at September 30, 2021, or 18.8% of total loans, compared to $2.75 billion, or 21.3% of total loans at December 31, 2020, a decrease of $711.7 million, or 25.9%. During the first nine months of 2021, we originated $318.9 million under the PPP Round 2 program. As a result of expected reimbursements from the SBA related to PPP loan forgiveness of both PPP Round 1 and Round 2 loans, PPP loan balances declined by $1.0 billion during the same period. We expect PPP balances to continue to decline through the remainder of the year. Agricultural loans increased $40.8 million, or 23.2%, primarily due to seasonality of the portfolio, which normally peaks in the third quarter. In addition, we are continuing with our planned exit of the energy portfolio.

Other loans mainly consists of mortgage warehouse lending. Mortgage volume, while still strong, declined during the first nine months of 2021 when compared to 2020, leading to a decrease of $186.7 million in other loans primarily from mortgage warehouse lines of credit.

Loan demand appears to be returning to more normalized levels. For the fourth consecutive quarter, we have experienced an increase in commercial loan demand. Our loan pipeline consisting of all loan opportunities was $1.5 billion at September 30, 2021 compared to $673.7 million at December 31, 2020. Loans approved and ready to close at the end of the quarter totaled $492.8 million.

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ASSET QUALITY

Non-performing loans are comprised of (a) nonaccrual loans, (b) loans that are contractually past due 90 days and (c) other loans for which terms have been restructured to provide a reduction or deferral of interest or principal, because of deterioration in the financial position of the borrower. Simmons Bank recognizes income principally on the accrual basis of accounting. When loans are classified as nonaccrual, generally, the accrued interest is charged off and no further interest is accrued. Loans, excluding credit card loans, are placed on a nonaccrual basis either: (1) when there are serious doubts regarding the collectability of principal or interest or (2) when payment of interest or principal is 90 days or more past due and either (i) not fully secured or (ii) not in the process of collection. If a loan is determined by management to be uncollectible, the portion of the loan determined to be uncollectible is then charged to the allowance for credit losses.

When credit card loans reach 90 days past due and there are attachable assets, the accounts are considered for litigation. Credit card loans are generally charged off when payment of interest or principal exceeds 150 days past due. The credit card recovery group pursues account holders until it is determined, on a case-by-case basis, to be uncollectible.

Total non-performing assets decreased $71.0 million from December 31, 2020 to September 30, 2021. Nonaccrual loans decreased by $63.8 million during the period and foreclosed assets held for sale and other real estate owned decreased by $6.6 million. The decrease in nonaccrual loans was primarily due to an overall improvement in economic conditions while the decrease in foreclosed assets held for sale and other real estate owned is mainly the result of the disposition of one commercial building in the St. Louis area.

Non-performing assets, including troubled debt restructurings (“TDRs”) and acquired foreclosed assets, as a percent of total assets were 0.33% at September 30, 2021, compared to 0.66% at December 31, 2020. From time to time, certain borrowers experience declines in income and cash flow. As a result, these borrowers seek to reduce contractual cash outlays, the most prominent being debt payments. In an effort to preserve our net interest margin and earning assets, we are open to working with existing customers in order to maximize the collectability of the debt.

When we restructure a loan for a borrower experiencing financial difficulty and grant a concession we would not otherwise consider, a “troubled debt restructuring” occurs and the loan is classified as a TDR. The Company grants various types of concessions, primarily interest rate reduction and/or payment modifications or extensions, with an occasional forgiveness of principal.

Once an obligation has been restructured due to such credit problems, it continues to be considered a TDR until paid in full; or, if an obligation yields a market interest rate and no longer has any concession regarding payment amount or amortization, then it is not considered a TDR at the beginning of the calendar year after the year in which the improvement takes place. Our TDR balance remained relatively flat at $6.8 million as of September 30, 2021, decreasing $712,000 from December 31, 2020.

TDRs are individually evaluated for expected credit losses. We assess the exposure for each modification, using either the fair value of the underlying collateral or the present value of expected cash flows, and determine if a specific allowance for credit losses is needed.

We return TDRs to accrual status only if (1) all contractual amounts due can reasonably be expected to be repaid within a prudent period, and (2) repayment has been in accordance with the contract for a sustained period, typically at least six months.

The provisions in the CARES Act included an election to not apply the guidance on accounting for TDRs to loan modifications, such as extensions or deferrals, related to COVID-19 made between March 1, 2020 and the earlier of (i) December 31, 2020 or (ii) 60 days after the President terminates the COVID-19 national emergency declaration. The relief can only be applied to modifications for borrowers that were not more than 30 days past due as of December 31, 2019. The Company elected to adopt these provisions of the CARES Act and is following the Interagency Statement on Loan Modifications and Reporting for Financial Institutions Working with Customers Affected by the Coronavirus (Revised) issued by regulatory agencies. In response to the concerns related to the expiration of the applicable period for which the election to not apply the guidance on accounting for TDRs to loan modifications, the CARES Act was amended late in the fourth quarter of 2020 to extend COVID-19 relief related to loan modifications to the earlier of (i) January 1, 2022 or (ii) 60 days after the President terminates the COVID-19 national emergency declaration.

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During 2020 and the first half of 2021, we processed over 3,700 COVID-19 loan modifications in excess of $3.0 billion. At September 30, 2021, the Company had 35 COVID-19 loan modifications outstanding in the amount of $82.0 million. The COVID-19 pandemic has had an unprecedented impact on the hotel, restaurant and retail industries, causing our borrowers in those industries to require loan modifications. At September 30, 2021, the majority of these balances have returned to regular payments and we expect most of the remaining COVID-19 loan modifications to return to regular payments with no credit downgrade or long-term restructure.

We continue to maintain good asset quality compared to the industry and strong asset quality remains a primary focus of our strategy. The allowance for credit losses as a percent of total loans was 1.87% as of September 30, 2021. Non-performing loans equaled 0.55% of total loans. Non-performing assets were 0.31% of total assets, a 33 basis point decrease from December 31, 2020. The allowance for credit losses was 341% of non-performing loans. Our annualized net charge-offs to average total loans for the first nine months of 2021 was 0.06%. Excluding credit cards, the annualized net charge-offs to average total loans for the same period was 0.04%. Annualized net credit card charge-offs to average total credit card loans were 1.38%, compared to 1.60% during the full year 2020, and 116 basis points better than the most recently published industry average charge-off ratio as reported by the Federal Reserve for all banks.

Table 9 presents information concerning non-performing assets, including nonaccrual loans at amortized cost and foreclosed assets held for sale. 

Table 9: Non-performing Assets 

	September 30,			December 31,
(Dollars in thousands)	2021			2020
Nonaccrual loans (1)	$	59,054		$	122,879
Loans past due 90 days or more (principal or interest payments)	334			578
Total non-performing loans	59,388			123,457
Other non-performing assets:
Foreclosed assets held for sale and other real estate owned	11,759			18,393
Other non-performing assets	1,724			2,016
Total other non-performing assets	13,483			20,409
Total non-performing assets	$	72,871		$	143,866
Performing TDRs	$	4,251		$	3,138
Allowance for credit losses to non-performing loans	341		%	193		%
Non-performing loans to total loans	0.55		%	0.96		%
Non-performing assets (including performing TDRs) to total assets	0.33		%	0.66		%
Non-performing assets to total assets	0.31		%	0.64		%

_______________________________________

(1)Includes nonaccrual TDRs of approximately $2,550,000 at September 30, 2021 and $4,375,000 at December 31, 2020.

The interest income on nonaccrual loans is not considered material for the three and nine month periods ended September 30, 2021 and 2020. 

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ALLOWANCE FOR CREDIT LOSSES

The allowance for credit losses is a reserve established through a provision for credit losses charged to expense which represents management’s best estimate of lifetime expected losses based on reasonable and supportable forecasts, historical loss experience, and other qualitative considerations.

Loans with similar risk characteristics such as loan type, collateral type, and internal risk ratings are aggregated into homogeneous segments for assessment. Reserve factors are based on estimated probability of default and loss given default for each segment. The estimates are determined based on economic forecasts over the reasonable and supportable forecast period based on projected performance of economic variables that have a statistical correlation with the historical loss experience of the segments. For contractual periods that extend beyond the one-year forecast period, the estimates revert to average historical loss experiences over a one-year period on a straight-line basis.

We also include qualitative adjustments to the allowance based on factors and considerations that have not otherwise been fully accounted for. Qualitative adjustments include, but are not limited to:

•Changes in asset quality - Adjustments related to trending credit quality metrics including delinquency, non-performing loans, charge-offs, and risk ratings that may not be fully accounted for in the reserve factor.

•Changes in the nature and volume of the portfolio - Adjustments related to current changes in the loan portfolio that are not fully represented or accounted for in the reserve factors.

•Changes in lending and loan monitoring policies and procedures - Adjustments related to current changes in lending and loan monitoring procedures as well as review of specific internal policy compliance metrics.

•Changes in the experience, ability, and depth of lending management and other relevant staff - Adjustments to measure increasing or decreasing credit risk related to lending and loan monitoring management.

•Changes in the value of underlying collateral of collateralized loans - Adjustments related to improving or deterioration of the value of underlying collateral that are not fully captured in the reserve factors.

•Changes in and the existence and effect of any concentrations of credit - Adjustments related to credit risk of specific industries that are not fully captured in the reserve factors.

•Changes in regional and local economic and business conditions and developments - Adjustments related to expected and current economic conditions at a regional or local-level that are not fully captured within our reasonable and supportable forecast.

•Data imprecision due to limited historical loss data - Adjustments related to limited historical loss data that is representative of the collective loan portfolio.

Loans that do not share similar risk characteristics are evaluated on an individual basis. These evaluations are typically performed on loans with a deteriorated internal risk rating or that are classified as a TDR. The allowance for credit loss is determined based on several methods including estimating the fair value of the underlying collateral or the present value of expected cash flows.

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An analysis of the allowance for credit losses on loans is shown in Table 10.

Table 10: Allowance for Credit Losses 

(In thousands)	2021		2020
Balance, beginning of year	$	238,050	$	68,244
Impact of CECL adoption	—		151,377
Loans charged off:
Credit card	2,759		3,326
Other consumer	1,577		3,062
Real estate	8,068		3,373
Commercial	2,099		40,537
Total loans charged off	14,503		50,298
Recoveries of loans previously charged off:
Credit card	801		773
Other consumer	1,136		1,110
Real estate	3,995		474
Commercial	2,930		1,381
Total recoveries	8,862		3,738
Net loans charged off	5,641		46,560
Provision for credit losses	(29,901)		75,190
Balance, September 30,	$	202,508	$	248,251
Loans charged off:
Credit card			787
Other consumer			960
Real estate			10,415
Commercial			8,199
Total loans charged off			20,361
Recoveries of loans previously charged off:
Credit card			241
Other consumer			355
Real estate			431
Commercial			1,835
Total recoveries			2,862
Net loans charged off			17,499
Provision for credit losses			7,298
Balance, end of year			$	238,050

Provision for Credit Losses

The amount of provision added to or released from the allowance during the three and nine months ended September 30, 2021 and 2020, and for the year ended December 31, 2020, was based on management’s judgment, with consideration given to the composition of the portfolio, historical loan loss experience, assessment of current economic forecasts and conditions, past due and non-performing loans and net loss experience. It is management’s practice to review the allowance on a monthly basis, and after considering the factors previously noted, to determine the level of provision made to the allowance. 

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Allowance for Credit Losses Allocation

As of September 30, 2021, the allowance for credit losses reflected a decrease of approximately $35.5 million from December 31, 2020 while total loans decreased $2.1 billion over the same nine month period. The allocation in each category within the allowance generally reflects the overall changes in the loan portfolio mix. During the first quarter of 2020, we recorded an additional allowance for credit losses for loans of approximately $151.4 million due to the adoption of CECL.

The significant impact to the allowance for credit losses at the date of CECL adoption was driven by the substantial amount of loans acquired held by the Company. We had approximately one third of total loans categorized as acquired at the adoption date with very little reserve allocated to them due to the previous incurred loss impairment methodology. As such, the amount of the CECL adoption impact was greater on the Company when compared to a non-acquisitive bank.

The decrease in the allowance for credit losses during the first nine months of 2021 was predominately related to economic recovery from the effects of the COVID-19 pandemic and the decline in our loan portfolio. While the economic conditions appear to be improving, certain industries continue to be more adversely impacted than others by this pandemic, such as the restaurant, retail and hotel industries, and there remains uncertainty regarding how borrowers in these industries will recover. Our allowance for credit losses at September 30, 2021 was considered appropriate given the considerable amount of uncertainty as to the structure and timing of potential economic recovery, the impact of new COVID-19 variants, future of government assistance related to COVID-19 recovery efforts and other related factors.

The following table sets forth the sum of the amounts of the allowance for credit losses attributable to individual loans within each category, or loan categories in general. The table also reflects the percentage of loans in each category to the total loan portfolio for each of the periods indicated. The allowance for credit losses by loan category is determined by i) our estimated reserve factors by category including applicable qualitative adjustments and ii) any specific allowance allocations that are identified on individually evaluated loans. The amounts shown are not necessarily indicative of the actual future losses that may occur within individual categories.

Table 11: Allocation of Allowance for Credit Losses

	September 30, 2021				December 31, 2020
(Dollars in thousands)	Allowance Amount		% of loans (1)		Allowance Amount		% of loans (1)
Credit cards	$	4,751	1.7	%	$	7,472	1.4	%
Other consumer	1,234		1.7	%	4,100		1.6	%
Real estate	176,847		74.6	%	182,868		71.5	%
Commercial	17,471		18.8	%	42,093		21.3	%
Other	2,205		3.2	%	1,517		4.2	%
Total	$	202,508	100.0	%	$	238,050	100.0	%

_______________________________________

(1)Percentage of loans in each category to total loans.

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DEPOSITS

Deposits are our primary source of funding for earning assets and are primarily developed through our network of approximately 185 financial centers as of September 30, 2021. We offer a variety of products designed to attract and retain customers with a continuing focus on developing core deposits. Our core deposits consist of all deposits excluding time deposits of $100,000 or more and brokered deposits. As of September 30, 2021, core deposits comprised 88.1% of our total deposits.

We continually monitor the funding requirements along with competitive interest rates in the markets we serve. Because of our community banking philosophy, our executives in the local markets, with oversight by the Chief Deposit Officer, Asset Liability Committee and the Bank’s Treasury Department, establish the interest rates offered on both core and non-core deposits. This approach ensures that the interest rates being paid are competitively priced for each particular deposit product and structured to meet the funding requirements. We believe we are paying a competitive rate when compared with pricing in those markets.

We manage our interest expense through deposit pricing. We believe that additional funds can be attracted and deposit growth can be accelerated through deposit pricing if we experience increased loan demand or other liquidity needs. We can also utilize brokered deposits as an additional source of funding to meet liquidity needs. We are continually monitoring and looking for opportunities to fairly reprice our deposits while remaining competitive in this current challenging rate environment.

Our total deposits as of September 30, 2021, were $18.07 billion, an increase of $1.09 billion from December 31, 2020, primarily driven by the government economic stimulus programs and changes in customer spending resulting from the COVID-19 pandemic. Non-interest bearing transaction accounts, interest bearing transaction accounts and savings accounts totaled $15.62 billion at September 30, 2021, compared to $14.15 billion at December 31, 2020, an increase of $1.46 billion. Total time deposits decreased $376.6 million to $2.46 billion at September 30, 2021, from $2.83 billion at December 31, 2020. We had $388.6 million and $512.3 million of brokered deposits at September 30, 2021, and December 31, 2020, respectively. Both consumer and commercial deposit balances have grown since the COVID-19 related economic stimulus legislation, including legislation that established the PPP program, was implemented in mid-2020. We are managing our balance sheet and our net interest margin by continuing to eliminate several high-cost deposits related to public funds and brokered deposits.

OTHER BORROWINGS AND SUBORDINATED NOTES AND DEBENTURES

Our total debt was $1.72 billion at September 30, 2021 and December 31, 2020. The outstanding balance for September 30, 2021 includes $1.3 billion in FHLB long-term advances; $330.0 million in subordinated notes; $53.3 million of trust preferred securities and unamortized debt issuance costs; and $32.2 million of other long-term debt.

The FHLB long-term advances outstanding at the end of the third quarter 2021 are primarily FOTO advances which are a low cost, fixed-rate source of funding in return for granting to FHLB the flexibility to choose a termination date earlier than the maturity date. Our FOTO advances outstanding at September 30, 2021 had original maturity dates of 10 years to 15 years with lockout periods that have expired. We expect the FHLB to not exercise the options to terminate the FOTO advances prior to their stated maturity dates due to the current low interest rate environment. We continually analyze the possibility of the FHLB exercising the options along with the market expected rate outcome. As of September 30, 2021, there were no FHLB short-term advances outstanding.

In March 2018, we issued $330 million in aggregate principal amount of 5.00% Fixed-to-Floating Rate Subordinated Notes (“Notes”) at a public offering price equal to 100% of the aggregate principal amount of the Notes. The Company incurred $3.6 million in debt issuance costs related to the offering. The Notes will mature on April 1, 2028 and are subordinated in right of payment to the payment of our other existing and future senior indebtedness, including all our general creditors. The Notes are obligations of the Company only and are not obligations of, and are not guaranteed by, any of its subsidiaries.

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CAPITAL

Overview

At September 30, 2021, total capital was $3.03 billion. Capital represents shareholder ownership in the Company – the book value of assets in excess of liabilities. At September 30, 2021, our common equity to asset ratio was 13.04% compared to 13.31% at year-end 2020.

Capital Stock

On February 27, 2009, at a special meeting, our shareholders approved an amendment to the Articles of Incorporation to establish 40,040,000 authorized shares of preferred stock, $0.01 par value. The aggregate liquidation preference of all shares of preferred stock cannot exceed $80,000,000.

On October 29, 2019, we filed Amended and Restated Articles of Incorporation (“October Amended Articles”) with the Arkansas Secretary of State. The October Amended Articles classified and designated Series D Preferred Stock, Par Value $0.01 Per Share, out of our authorized preferred stock.

Stock Repurchase Program

Effective July 23, 2021, our Board of Directors approved an amendment to the Company’s current stock repurchase program (“Program”) that increases the amount of our common stock that may be repurchased under the Program from a maximum of $180 million to a maximum of $276.5 million and extends the term of the Program from October 31, 2021, to October 31, 2022 (unless terminated sooner). The Program was originally approved on October 17, 2019 and first amended in March 2020.

Under the Program, we may repurchase shares of our common stock through open market and privately negotiated transactions or otherwise. The timing, pricing, and amount of any repurchases under the Program will be determined by management at its discretion based on a variety of factors, including, but not limited to, trading volume and market price of our common stock, corporate considerations, our working capital and investment requirements, general market and economic conditions, and legal requirements. The Program does not obligate us to repurchase any common stock and may be modified, discontinued, or suspended at any time without prior notice. We anticipate funding for this Program to come from available sources of liquidity, including cash on hand and future cash flow.

During the three and nine month periods ended September 30, 2021, we repurchased 1,806,205 shares at an average price per share of $28.48 and 1,937,121 shares at an average price per share of $28.14, respectively, under the Program. During the nine month period ended September 30, 2020, 4,922,336 shares at an average price per share of $18.96 were repurchased under the Program. No shares were repurchased under the Program during the three months ended September 30, 2020.

Cash Dividends

We declared cash dividends on our common stock of $0.54 per share for the first nine months of 2021 compared to $0.51 per share for the first nine months of 2020, an increase of $0.03, or 6%. The timing and amount of future dividends are at the discretion of our Board of Directors and will depend upon our consolidated earnings, financial condition, liquidity and capital requirements, the amount of cash dividends paid to us by our subsidiaries, applicable government regulations and policies and other factors considered relevant by our Board of Directors. Our Board of Directors anticipates that we will continue to pay quarterly dividends in amounts determined based on the factors discussed above. However, there can be no assurance that we will continue to pay dividends on our common stock at the current levels or at all.

Parent Company Liquidity

The primary liquidity needs of the Parent Company are the payment of dividends to shareholders, the funding of debt obligations and cash needs for acquisitions. The primary sources for meeting these liquidity needs are the current cash on hand at the parent company and the future dividends received from Simmons Bank. Payment of dividends by Simmons Bank is subject to various regulatory limitations. See the Liquidity and Market Risk Management discussions of Item 3 – Quantitative and Qualitative Disclosures About Market Risk for additional information regarding the parent company’s liquidity. The Company continually assesses its capital and liquidity needs and the best way to meet them, including, without limitation, through capital raising in the market via stock or debt offerings.

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Risk Based Capital

The Company and Simmons 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 our financial statements. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, we must meet specific capital guidelines that involve quantitative measures of our assets, liabilities and certain off-balance-sheet items as calculated under regulatory accounting practices. Our capital amounts and classifications are also subject to qualitative judgments by the regulators about components, risk weightings and other factors. The Company and Simmons Bank must hold a capital conservation buffer composed of common equity Tier 1 capital above its minimum risk-based capital requirements. Failure to meet this capital conservation buffer would result in additional limits on dividends, other distributions and discretionary bonuses.

Quantitative measures established by regulation to ensure capital adequacy require us to maintain minimum amounts and ratios (set forth in the table below) of total, Tier 1 and common equity Tier 1 capital (as defined in the regulations) to risk-weighted assets (as defined) and of Tier 1 capital (as defined) to average assets (as defined). Management believes that, as of September 30, 2021, we meet all capital adequacy requirements to which we are subject. As of the most recent notification from regulatory agencies, Simmons Bank was well capitalized under the regulatory framework for prompt corrective action. To be categorized as well capitalized, the Company and Simmons Bank must maintain minimum total risk-based, Tier 1 risk-based, common equity Tier 1 risk-based and Tier 1 leverage ratios as set forth in the table. There are no conditions or events since that notification that management believes have changed the institution’s categories.

Our risk-based capital ratios at September 30, 2021 and December 31, 2020 are presented in Table 12 below:

Table 12: Risk-Based Capital

	September 30,			December 31,
(Dollars in thousands)	2021			2020
Tier 1 capital:
Stockholders’ equity	$	3,030,531		$	2,976,656
CECL transition provision	122,787			131,430
Goodwill and other intangible assets	(1,152,688)			(1,163,797)
Unrealized loss (gain) on available-for-sale securities, net of income taxes	11,429			(59,726)
Total Tier 1 capital	2,012,059			1,884,563
Tier 2 capital:
Trust preferred securities and subordinated debt	383,278			382,874
Qualifying allowance for credit losses and reserve for unfunded commitments	60,700			89,546
Total Tier 2 capital	443,978			472,420
Total risk-based capital	$	2,456,037		$	2,356,983
Risk weighted assets	$	14,098,320		$	14,048,608
Assets for leverage ratio	$	22,189,921		$	20,765,127
Ratios at end of period:
Common equity Tier 1 ratio (CET1)	14.27		%	13.41		%
Tier 1 leverage ratio	9.07		%	9.08		%
Tier 1 leverage ratio, excluding average PPP loans (non-GAAP)(1)	9.22		%	9.50		%
Tier 1 risk-based capital ratio	14.27		%	13.41		%
Total risk-based capital ratio	17.42		%	16.78		%
Minimum guidelines:
Common equity Tier 1 ratio (CET1)	4.50		%	4.50		%
Tier 1 leverage ratio	4.00		%	4.00		%
Tier 1 risk-based capital ratio	6.00		%	6.00		%
Total risk-based capital ratio	8.00		%	8.00		%

_______________________________________

(1)PPP loans are 100% federally guaranteed and have a zero percent risk-weight for regulatory capital ratios. Tier 1 leverage ratio, excluding average PPP loans is a non-GAAP measurement.

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Regulatory Capital Changes

In December 2018, the Federal Reserve, Office of the Comptroller of the Currency and Federal Deposit Insurance Corporation (“FDIC”) (collectively, the “agencies”) issued a final rule revising regulatory capital rules in anticipation of the adoption of ASU 2016-13 that provided an option to phase in over a three year period on a straight line basis the day-one impact of the adoption on earnings and Tier 1 capital (the “CECL Transition Provision”).

In March 2020 and in response to the COVID-19 pandemic, the agencies issued a new regulatory capital rule revising the CECL Transition Provision to delay the estimated impact on regulatory capital stemming from the implementation of ASU 2016-13. The rule provides banking organizations that implement CECL before the end of 2020 the option to delay for two years an estimate of CECL’s effect on regulatory capital, followed by a three-year transition period (the “2020 CECL Transition Provision”). The Company elected to apply the 2020 CECL Transition Provision.

In July 2013, the Company’s primary federal regulator, the Federal Reserve, published final rules (the “Basel III Capital Rules”) establishing a new comprehensive capital framework for U.S. banks. The rules implement the Basel Committee’s December 2010 framework known as “Basel III” for strengthening international capital standards. The Basel III Capital Rules introduced substantial revisions to the risk-based capital requirements applicable to bank holding companies and depository institutions.

The Basel III Capital Rules define the components of capital and address other issues affecting the numerator in banking institutions’ regulatory capital ratios. The rules also address risk weights and other issues affecting the denominator in banking institutions’ regulatory capital ratios and replace the existing risk-weighting approach with a more risk-sensitive approach.

The Basel III Capital Rules expanded the risk-weighting categories from four Basel I-derived categories (0%, 20%, 50% and 100%) to a much larger and more risk-sensitive number of categories, depending on the nature of the assets, generally ranging from 0% for U.S. government and agency securities, to 600% for certain equity exposures, and resulting in higher risk weights for a variety of asset categories, including many residential mortgages and certain commercial real estate.

The final rules included a new common equity Tier 1 capital to risk-weighted assets ratio of 4.5% and a common equity Tier 1 capital conservation buffer of 2.5% of risk-weighted assets. The rules also raised the minimum ratio of Tier 1 capital to risk-weighted assets from 4.0% to 6.0% and require a minimum leverage ratio of 4.0%. The Basel III Capital Rules became effective for the Company and its subsidiary bank on January 1, 2015, with full compliance with all of the final rule’s requirements on January 1, 2019.

Prior to December 31, 2017, Tier 1 capital included common equity Tier 1 capital and certain additional Tier 1 items as provided under the Basel III Capital Rules. The Tier 1 capital for the Company consisted of common equity Tier 1 capital and trust preferred securities. The Basel III Capital Rules include certain provisions that require trust preferred securities to be phased out of qualifying Tier 1 capital when assets surpass $15 billion. As of December 31, 2017, the Company exceeded $15 billion in total assets and the grandfather provisions applicable to its trust preferred securities no longer apply and trust preferred securities are no longer included as Tier 1 capital. Trust preferred securities and qualifying subordinated debt of $383.3 million is included as Tier 2 and total capital as of September 30, 2021.

RECENTLY ISSUED ACCOUNTING PRONOUNCEMENTS

See the Recently Issued Accounting Standards section in Note 1, Preparation of Interim Financial Statements, in the accompanying Condensed Notes to Consolidated Financial Statements included elsewhere in this report for details of recently issued accounting pronouncements and their expected impact on the Company’s ongoing financial position and results of operation.

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CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS

Certain statements contained in this quarterly report may not be based on historical facts and should be considered “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. These forward-looking statements may be identified by reference to a future period(s) or by the use of forward-looking terminology, such as “anticipate,” “believe,” “budget,” “contemplate,” “continue,” “estimate,” “expect,” “foresee,” “intend,” “indicate,” “target,” “plan,” positions,” “prospects,” “project,” “predict,” or “potential,” by future conditional verbs such as “could,” “may,” “might,” “should,” “will,” or “would,” or by variations of such words or by similar expressions. These forward-looking statements include, without limitation, those relating to the Company’s future growth, completed acquisitions, revenue, expenses, assets, asset quality, profitability, earnings, accretion, customer service, lending capacity and lending activity, investment in digital channels, critical accounting policies, net interest margin, non-interest revenue, market conditions related to and the impact of the Company’s stock repurchase program, consumer behavior and liquidity, the adequacy of the allowance for credit losses, the impacts of the COVID-19 pandemic and the ability of the Company to manage the impacts of the COVID-19 pandemic, the impacts of the Company’s and its customers’ participation in the Paycheck Protection Program, the expected performance of COVID-19 loan modifications, income tax deductions, credit quality, the level of credit losses from lending commitments, net interest revenue, interest rate sensitivity, loan loss experience, liquidity, the Company’s expectations regarding actions by the FHLB including with respect to the FHLB’s option to terminate FOTO advances, capital resources, market risk, plans for investments in securities, effect of future litigation, including the results of the overdraft fee litigation against the Company that is described in this quarterly report, acquisition strategy and activity, legal and regulatory limitations and compliance and competition.

These forward-looking statements involve risks and uncertainties, and may not be realized due to a variety of factors, including, without limitation: changes in the Company’s operating, acquisition, or expansion strategy; the effects of future economic conditions (including unemployment levels and slowdowns in economic growth), governmental monetary and fiscal policies, as well as legislative and regulatory changes, including in response to the COVID-19 pandemic; the impacts of the COVID-19 pandemic on the Company’s operations and performance; the ultimate effect of measures the Company takes or has taken in response to the COVID-19 pandemic; the severity and duration of the COVID-19 pandemic, including the effectiveness of vaccination efforts and developments with respect to COVID-19 variants; the pace of recovery when the COVID-19 pandemic subsides and the heightened impact it has on many of the risks described herein; changes in real estate values; changes in interest rates; changes in the level and composition of deposits, loan demand, and the values of loan collateral, securities and interest sensitive assets and liabilities; changes in the securities markets generally or the price of the Company’s common stock specifically; developments in information technology affecting the financial industry; cyber threats, attacks or events; reliance on third parties for the provision of key services; further changes in accounting principles relating to loan loss recognition; uncertainty and disruption associated with the discontinued use of the London Inter-Bank Offered Rate; the costs of evaluating possible acquisitions and the risks inherent in integrating acquisitions; possible adverse rulings, judgements, settlements, and other outcomes of pending or future litigation, including litigation or actions arising from the Company’s participation in and administration of programs related to the COVID-19 pandemic (including, among others, the PPP); the effects of competition from other commercial banks, thrifts, mortgage banking firms, consumer finance companies, credit unions, securities brokerage firms, insurance companies, money market and other mutual funds and other financial institutions operating in our market area and elsewhere, including institutions operating regionally, nationally and internationally, together with such competitors offering banking products and services by mail, telephone, computer and the internet; the failure of assumptions underlying the establishment of reserves for possible credit losses, fair value for loans, other real estate owned, and other cautionary statements set forth elsewhere in this report. Please also refer to the “Risk Factors” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” sections of this quarterly report and the Company’s annual report on Form 10-K for the year ended December 31, 2020, and related disclosures in other filings, which have been filed with the SEC and are available on the SEC’s website at www.sec.gov. Many of these factors are beyond our ability to predict or control, and actual results could differ materially from those in the forward-looking statements due to these factors and others. In addition, as a result of these and other factors, our past financial performance should not be relied upon as an indication of future performance.

We believe the assumptions and expectations that underlie or are reflected in our forward-looking statements are reasonable, based on information available to us on the date hereof. However, given the described uncertainties and risks, we cannot guarantee our future performance or results of operations or whether our future performance will differ materially from the performance reflected in or implied by our forward-looking statements, and you should not place undue reliance on these forward-looking statements. Any forward-looking statement speaks only as of the date hereof, and we undertake no obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, and all written or oral forward-looking statements attributable to us are expressly qualified in their entirety by this section.

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GAAP RECONCILIATION OF NON-GAAP FINANCIAL MEASURES

The tables below present computations of core earnings (net income excluding non-core items {gain on sale of branches, merger related costs, early retirement program costs and the net branch right sizing costs}) (non-GAAP) and core diluted earnings per share (non-GAAP) as well as a computation of tangible book value per share (non-GAAP), tangible common equity to tangible assets (non-GAAP), the core net interest margin (non-GAAP), core other income (non-GAAP) and core non-interest expense (non-GAAP). Non-core items are included in financial results presented in accordance with generally accepted accounting principles (US GAAP). The tables below also present computations of certain figures that are exclusive of the impact of PPP loans: the ratios of common equity to total assets and tangible common equity to tangible assets, each adjusted for PPP loans (each non-GAAP), Tier 1 leverage ratio excluding average PPP loans (non-GAAP), and net interest income and net interest margin, each adjusted for PPP loans and additional liquidity (each non-GAAP).

We believe the exclusion of these non-core items in expressing earnings and certain other financial measures, including “core earnings,” provides a meaningful basis for period-to-period and company-to-company comparisons, which management believes will assist investors and analysts in analyzing the core financial measures of the Company and predicting future performance. These non-GAAP financial measures are also used by management to assess the performance of the Company’s business because management does not consider these non-core items to be relevant to ongoing financial performance. Management and the Board of Directors utilize “core earnings” (non-GAAP) for the following purposes:

•   Preparation of the Company’s operating budgets

•   Monthly financial performance reporting

•   Monthly “flash” reporting of consolidated results (management only)

•   Investor presentations of Company performance

We believe the presentation of “core earnings” on a diluted per share basis, “core diluted earnings per share” (non-GAAP) and core net interest margin (non-GAAP), provides a meaningful basis for period-to-period and company-to-company comparisons, which management believes will assist investors and analysts in analyzing the core financial measures of the Company and predicting future performance. These non-GAAP financial measures are also used by management to assess the performance of the Company’s business, because management does not consider these non-core items to be relevant to ongoing financial performance on a per share basis. Management and the Board of Directors utilize “core diluted earnings per share” (non-GAAP) for the following purposes:

•   Calculation of annual performance-based incentives for certain executives

•   Calculation of long-term performance-based incentives for certain executives

•   Investor presentations of Company performance

We have $1.176 billion and $1.186 billion total goodwill and other intangible assets for the periods ended September 30, 2021 and December 31, 2020, respectively. Because our acquisition strategy has resulted in a high level of intangible assets, management believes useful calculations include tangible book value per share (non-GAAP) and tangible common equity to tangible assets (non-GAAP).

We believe the exclusion of PPP loans or their impact, as applicable, in expressing earnings and certain other financial measures provides a meaningful basis for period-to-period and company-to-company comparisons because PPP loans are 100% federally guaranteed and have very low interest rates. The Company’s non-GAAP financial measures that exclude PPP loans or their impact include the ratios of “common equity to total assets” and “tangible common equity to tangible assets,” each adjusted for PPP loans (each non-GAAP), “Tier 1 leverage ratio excluding average PPP loans” (non-GAAP), and “net interest margin,” adjusted for PPP loans and additional liquidity (non-GAAP). Additional liquidity is defined as average interest-bearing balances due from banks greater than normal liquidity levels. Management believes these non-GAAP presentations will assist investors and analysts in analyzing the core financial measures of the Company, including the performance of the Company’s loan portfolio and the Company’s regulatory capital position, and predicting future performance. Management and the Board of Directors utilize these non-GAAP financial measures for financial performance reporting and investor presentations of Company performance.

We believe that presenting these non-GAAP financial measures will permit investors and analysts to assess the performance of the Company on the same basis as that is applied by management and the Board of Directors.

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Non-GAAP financial measures have inherent limitations, are not required to be uniformly applied and are not audited. To mitigate these limitations, we have procedures in place to identify and approve each item that qualifies as non-core to ensure that the Company’s “core” results are properly reflected for period-to-period comparisons. Although these non-GAAP financial measures are frequently used by stakeholders in the evaluation of a company, they have limitations as analytical tools and should not be considered in isolation or as a substitute for analyses of results as reported under GAAP. In particular, a measure of earnings that excludes non-core items does not represent the amount that effectively accrues directly to stockholders (i.e., non-core items are included in earnings and stockholders’ equity). Additionally, similarly titled non-GAAP financial measures used by other companies may not be computed in the same or similar fashion.

See Table 13 below for the reconciliation of non-GAAP financial measures, which exclude non-core items for the periods presented.

Table 13: Reconciliation of Core Earnings (non-GAAP) 

	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands, except per share data)	2021		2020		2021		2020
Net income available to common stockholders	$	80,561	$	65,885	$	222,879	$	201,897
Non-core items:
Gain on sale of branches	—		—		(5,316)		(8,093)
Merger related costs	1,401		902		2,320		3,800
Early retirement program	—		2,346		—		2,839
Branch right sizing (net)	(3,041)		72		(2,554)		2,031
Tax effect (1)	429		(867)		1,451		(151)
Net non-core items	(1,211)		2,453		(4,099)		426
Core earnings (non-GAAP)	$	79,350	$	68,338	$	218,780	$	202,323
Diluted earnings per share(2)	$	0.74	$	0.60	$	2.05	$	1.83
Non-core items:
Gain on sale of branches	—		—		(0.05)		(0.07)
Merger related costs	0.01		0.01		0.02		0.03
Early retirement program	—		0.02		—		0.02
Branch right sizing (net)	(0.03)		—		(0.02)		0.02
Tax effect (1)	0.01		—		0.01		—
Net non-core items	(0.01)		0.03		(0.04)		—
Core diluted earnings per share (non-GAAP)	$	0.73	$	0.63	$	2.01	$	1.83

_______________________________________

(1)Effective tax rate of 26.135%.

(2)See Note 17, Earnings Per Share, for number of shares used to determine EPS.

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See Table 14 below for the reconciliation of core other income and core non-interest expense for the periods presented.

Table 14: Reconciliation of Core Other Income and Core Non-Interest Expense (non-GAAP) 

	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands)	2021		2020		2021		2020
Other income	$	6,220	$	5,380	$	24,590	$	27,990
Gain on sale of branches	—		—		(5,316)		(8,093)
Branch right sizing	239		(370)		(367)		(370)
Core other income (non-GAAP)	$	6,459	$	5,010	$	18,907	$	19,527
Non-interest expense	$	114,333	$	116,577	$	341,992	$	358,896
Non-core items:
Merger related costs	(1,401)		(902)		(2,320)		(3,800)
Early retirement program	—		(2,346)		—		(2,839)
Branch right sizing	3,280		(442)		2,187		(2,401)
Total non-core items	1,879		(3,690)		(133)		(9,040)
Core non-interest expense (non-GAAP)	$	116,212	$	112,887	$	341,859	$	349,856

See Table 15 below for the reconciliation of tangible book value per common share.

Table 15: Reconciliation of Tangible Book Value per Common Share (non-GAAP) 

	September 30,		December 31,
(In thousands, except per share data)	2021		2020
Total stockholders’ equity	$	3,030,531	$	2,976,656
Preferred stock	(767)		(767)
Total common stockholders’ equity	3,029,764		2,975,889
Intangible assets:
Goodwill	(1,075,305)		(1,075,305)
Other intangible assets	(100,428)		(111,110)
Total intangibles	(1,175,733)		(1,186,415)
Tangible common stockholders’ equity	$	1,854,031	$	1,789,474
Shares of common stock outstanding	106,603,231		108,077,662
Book value per common share	$	28.42	$	27.53
Tangible book value per common share (non-GAAP)	$	17.39	$	16.56

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See Table 16 below for the calculation of tangible common equity and the reconciliation of tangible common equity to tangible assets.

Table 16: Reconciliation of Tangible Common Equity and the Ratio of Tangible Common Equity to Tangible Assets (non-GAAP)

	September 30,			December 31,
(Dollars in thousands)	2021			2020
Total common stockholders’ equity	$	3,029,764		$	2,975,889
Intangible assets:
Goodwill	(1,075,305)			(1,075,305)
Other intangible assets	(100,428)			(111,110)
Total intangibles	(1,175,733)			(1,186,415)
Tangible common stockholders’ equity	$	1,854,031		$	1,789,474
Total assets	$	23,225,930		$	22,359,752
Intangible assets:
Goodwill	(1,075,305)			(1,075,305)
Other intangible assets	(100,428)			(111,110)
Total intangibles	(1,175,733)			(1,186,415)
Tangible assets	$	22,050,197		$	21,173,337
Paycheck Protection Program (“PPP”) loans	(212,087)			(904,673)
Total assets excluding PPP loans	$	23,013,843		$	21,455,079
Tangible assets excluding PPP loans	$	21,838,110		$	20,268,664
Ratio of common equity to assets	13.04		%	13.31		%
Ratio of tangible common equity to tangible assets (non-GAAP)	8.41		%	8.45		%
Ratio of common equity to assets excluding PPP loans (non-GAAP)	13.16		%	13.87		%
Ratio of tangible common equity to tangible assets excluding PPP loans (non-GAAP)	8.49		%	8.83		%

See Table 17 below for the calculation of Tier 1 leverage ratio excluding average PPP loans for the period presented.

Table 17: Reconciliation of Tier 1 Leverage Ratio Excluding Average PPP Loans (non-GAAP)

(Dollars in thousands)	Three Months Ended September 30, 2021
Total Tier 1 capital	$	2,012,059
Adjusted average assets for leverage ratio	$	22,189,921
Average PPP loans	(359,828)
Adjusted average assets excluding average PPP loans	$	21,830,093
Tier 1 leverage ratio	9.07		%
Tier 1 leverage ratio excluding average PPP loans (non-GAAP)	9.22		%

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See Table 18 below for the calculation of core net interest margin and net interest margin adjusted for PPP loans and additional liquidity for the periods presented.

Table 18: Reconciliation of Core Net Interest Margin (non-GAAP)

	Three Months Ended September 30,						Nine Months Ended September 30,
(Dollars in thousands)	2021			2020			2021			2020
Net interest income	$	145,237		$	153,610		$	438,451		$	484,774
FTE adjustment	4,941			2,864			13,652			7,519
Fully tax equivalent net interest income	150,178			156,474			452,103			492,293
Total accretable yield	(4,122)			(8,948)			(16,371)			(32,508)
Core net interest income	$	146,056		$	147,526		$	435,732		$	459,785
PPP loan and additional liquidity (1) interest income	(10,064)			(6,131)			(32,013)
Net interest income adjusted for PPP loans and additional liquidity (1)	$	140,114		$	150,343		$	420,090
Average earning assets	$	20,901,992		$	19,415,314		$	20,783,708		$	19,172,318
Average PPP loan balance and additional liquidity (1)	(1,475,098)			(2,359,928)			(2,601,327)
Average earning assets adjusted for PPP loans and additional liquidity (1)	$	19,426,894		$	17,055,386		$	18,182,381
Net interest margin	2.85		%	3.21		%	2.91		%	3.43		%
Core net interest margin (non-GAAP)	2.77		%	3.02		%	2.80		%	3.20		%
Net interest margin adjusted for PPP loans and additional liquidity (1) (non-GAAP)	2.86		%	3.51		%	3.09		%

_______________________________________

(1)Additional liquidity is estimated as the average interest bearing balances due from banks and federal funds sold greater than $750.0 million.

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Item 3.    Quantitative and Qualitative Disclosures About Market Risk

The Company has leveraged its investment in its subsidiary bank and depends upon the dividends paid to it, as the sole shareholder of the subsidiary bank, as a principal source of funds for dividends to shareholders, stock repurchases and debt service requirements. At September 30, 2021, undivided profits of Simmons Bank were approximately $484.4 million, of which approximately $47.0 million was available for the payment of dividends to the Company without regulatory approval. In addition to dividends, other sources of liquidity for the Company are the sale of equity securities and the borrowing of funds.

Subsidiary Bank

Generally speaking, the Company’s subsidiary bank relies upon net inflows of cash from financing activities, supplemented by net inflows of cash from operating activities, to provide cash used in investing activities. Typical of most banking companies, significant financing activities include: deposit gathering; use of short-term borrowing facilities, such as federal funds purchased and repurchase agreements; and the issuance of long-term debt. The subsidiary bank’s primary investing activities include loan originations and purchases of investment securities, offset by loan payoffs and investment cash flows and maturities.

Liquidity represents an institution’s ability to provide funds to satisfy demands from depositors and borrowers by either converting assets into cash or accessing new or existing sources of incremental funds. A major responsibility of management is to maximize net interest income within prudent liquidity constraints. Internal corporate guidelines have been established to constantly measure liquid assets as well as relevant ratios concerning earning asset levels and purchased funds. The management and Board of Directors of the subsidiary bank monitors these same indicators and makes adjustments as needed.

Liquidity Management

The objective of our liquidity management is to access adequate sources of funding to ensure that cash flow requirements of depositors and borrowers are met in an orderly and timely manner. Sources of liquidity are managed so that reliance on any one funding source is kept to a minimum. Our liquidity sources are prioritized for both availability and time to activation.

Our liquidity is a primary consideration in determining funding needs and is an integral part of asset/liability management. Pricing of the liability side is a major component of interest margin and spread management. Adequate liquidity is a necessity in addressing this critical task. There are seven primary and secondary sources of liquidity available to the Company. The particular liquidity need and timeframe determine the use of these sources.

The first source of liquidity available to the Company is federal funds. Federal funds are available on a daily basis and are used to meet the normal fluctuations of a dynamic balance sheet. The Bank has approximately $415 million in federal funds lines of credit from upstream correspondent banks that can be accessed, when needed. In order to ensure availability of these upstream funds we test these borrowing lines at least annually. Historical monitoring of these funds has made it possible for us to project seasonal fluctuations and structure our funding requirements on a month-to-month basis.

Second, Simmons Bank has lines of credit available with the Federal Home Loan Bank. While we use portions of those lines to match off longer-term mortgage loans, we also use those lines to meet liquidity needs. Approximately $3.0 billion of these lines of credit are currently available, if needed, for liquidity.

A third source of liquidity is that we have the ability to access large wholesale deposits from both the public and private sector to fund short-term liquidity needs.

A fourth source of liquidity is the retail deposits available through our network of financial centers throughout Arkansas, Kansas, Missouri, Oklahoma, Tennessee and Texas. Although this method can be a somewhat more expensive alternative to supplying liquidity, this source can be used to meet intermediate term liquidity needs.

Fifth, we use a laddered investment portfolio that ensures there is a steady source of intermediate term liquidity. These funds can be used to meet seasonal loan patterns and other intermediate term balance sheet fluctuations. Approximately 81.8% of the investment portfolio is classified as available-for-sale. We also use securities held in the securities portfolio to pledge when obtaining public funds.

Sixth, we have a network of downstream correspondent banks from which we can access debt to meet liquidity needs.

Finally, we have the ability to access funds through the Federal Reserve Bank Discount Window.

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We believe the various sources available are ample liquidity for short-term, intermediate-term and long-term liquidity.

Market Risk Management

Market risk arises from changes in interest rates. We have risk management policies to monitor and limit exposure to market risk. In asset and liability management activities, policies designed to minimize structural interest rate risk are in place. The measurement of market risk associated with financial instruments is meaningful only when all related and offsetting on- and off-balance-sheet transactions are aggregated, and the resulting net positions are identified.

Interest Rate Sensitivity

Interest rate risk represents the potential impact of interest rate changes on net income and capital resulting from mismatches in repricing opportunities of assets and liabilities over a period of time. A number of tools are used to monitor and manage interest rate risk, including simulation models and interest sensitivity gap analysis. Management uses simulation models to estimate the effects of changing interest rates and various balance sheet strategies on the level of the Company’s net income and capital. As a means of limiting interest rate risk to an acceptable level, management may alter the mix of floating and fixed-rate assets and liabilities, change pricing schedules and manage investment maturities during future security purchases, or enter into derivative contracts such as interest rate swaps.

The simulation model incorporates management’s assumptions regarding the level of interest rates or balance changes for indeterminate maturity deposits for a given level of market rate changes. These assumptions have been developed through anticipated pricing behavior. Key assumptions in the simulation models include the relative timing of prepayments, cash flows and maturities. These assumptions are inherently uncertain and, as a result, the model cannot precisely estimate net interest income or precisely predict the impact of a change in interest rates on net income or capital. Actual results will differ from simulated results due to the timing, magnitude and frequency of interest rate changes and changes in market conditions and management strategies, among other factors.

As of September 30, 2021, the model simulations projected that 100 and 200 basis point increases in interest rates would result in a positive variance in net interest income of 3.04% and 6.65%, respectively, relative to the base case over the next 12 months, while decreases in interest rates of 25 basis points would result in a negative variance in net interest income of (0.18)% relative to the base case over the next 12 months. The likelihood of a decrease in interest rates in excess of 25 basis points as of September 30, 2021, is considered remote given current interest rate levels. These are good faith estimates and assume that the composition of our interest sensitive assets and liabilities existing at each period-end will remain constant over the relevant twelve month measurement period and that changes in market interest rates are instantaneous and sustained across the yield curve regardless of duration of pricing characteristics of specific assets or liabilities. Also, this analysis does not contemplate any actions that we might undertake in response to changes in market interest rates. We believe these estimates are not necessarily indicative of what actually could occur in the event of immediate interest rate increases or decreases of this magnitude. As interest-bearing assets and liabilities reprice in different time frames and proportions to market interest rate movements, various assumptions must be made based on historical relationships of these variables in reaching any conclusion. Since these correlations are based on competitive and market conditions, we anticipate that our future results will likely be different from the foregoing estimates, and such differences could be material.

The table below presents our sensitivity to net interest income at September 30, 2021: 

Table 19: Net Interest Income Sensitivity

Interest Rate Scenario	% Change from Base
Up 200 basis points	6.65%
Up 100 basis points	3.04%
Down 25 basis points	(0.18)%

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Item 4.    Controls and Procedures

Management, under the supervision and with the participation of the Company’s Chief Executive Officer, Chief Financial Officer and Chief Accounting Officer, has reviewed and evaluated the effectiveness of the Company’s disclosure controls and procedures (as defined in Rule 13a-15(e) or Rule 15d-15(e) under the Securities Exchange Act of 1934, as amended (“Exchange Act”)) as of the end of the period covered by this report. Based upon that evaluation, the Chief Executive Officer, Chief Financial Officer and Chief Accounting Officer have concluded that the Company’s current disclosure controls and procedures were effective as of the end of the period covered by this report to ensure that information required to be disclosed by the Company in reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in SEC rules and forms and that such information is accumulated and communicated to management, including the Company’s Chief Executive Officer, Chief Financial Officer and Chief Accounting Officer, as appropriate to allow timely decisions regarding required disclosure. Because of the inherent limitations in all control systems, no evaluation of controls can provide absolute assurance that the Company’s disclosure controls and procedures will detect or uncover every situation involving the failure of persons within the Company or its subsidiary to disclose material information required to be set forth in the Company’s periodic reports.

Changes in Internal Control over Financial Reporting

There were no changes in the Company’s internal controls over financial reporting during the quarter ended September 30, 2021, which materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.

Part II:    Other Information

Item 1.     Legal Proceedings

The information contained in Note 13, Contingent Liabilities, of the Condensed Notes to Consolidated Financial Statements in Part I, Item 1 of this report is incorporated herein by reference.

Item 1A.     Risk Factors

There have been no material changes in the risk factors faced by the Company from those disclosed in the Company’s Annual Report on Form 10-K for the year ended December 31, 2020 (“2020 Form 10-K”).

Item 2.     Unregistered Sales of Equity Securities and Use of Proceeds

Effective July 23, 2021, our Board of Directors approved an amendment to the Company’s current stock repurchase program (“Program”) that increases the amount of our common stock that may be repurchased under the Program from a maximum of $180 million to a maximum of $276.5 million and extends the term of the Program from October 31, 2021, to October 31, 2022 (unless terminated sooner). The Program was originally approved on October 17, 2019 and first amended in March 2020. The timing, pricing, and amount of any repurchases under the Program will be determined by management at its discretion based on a variety of factors, including but not limited to, trading volume and market price of our common stock, corporate considerations, our working capital and investment requirements, general market and economic conditions, and legal requirements.

Information concerning our purchases of common stock during the quarter ended September 30, 2021 is as follows:

Period	Total Number of Shares Purchased	Average Price Paid per Share		Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs	Approximate Dollar Value of Shares that May Yet Be Purchased Under the Plans or Programs
July 1, 2021 - July 31, 2021	22,582	$	27.21	22,582	$	149,349,000
August 1, 2021 - August 31, 2021	858,623	28.62		858,623	$	124,776,000
September 1, 2021 - September 30, 2021	925,000	28.37		925,000	$	98,531,000
Total	1,806,205	$	28.48	1,806,205

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Item 6.     Exhibits

Exhibit No.	Description
2.1	Agreement and Plan of Merger, dated as of June 4, 2021, by and among Simmons First National Corporation, Simmons Bank and Landmark Community Bank (incorporated by reference to Annex A to the Registration Statement on Form S-4 filed under the Securities Act of 1933 by Simmons First National Corporation on July 21, 2021 (File No. 333-258059)).
2.2	Agreement and Plan of Merger, dated as of June 4, 2021, by and among Simmons First National Corporation and Triumph Bancshares, Inc. (incorporated by reference to Annex B to the Registration Statement on Form S-4 filed under the Securities Act of 1933 by Simmons First National Corporation on July 21, 2021 (File No. 333-258059)).
3.1	Amended and Restated Articles of Incorporation of Simmons First National Corporation, as amended on July 14, 2021 (incorporated by reference to Exhibit 3.1 to the Registration Statement on Form S-4 filed under the Securities Act of 1933 by Simmons First National Corporation on July 21, 2021 (File No. 333-258059)).
3.2	As Amended By-Laws of Simmons First National Corporation, as amended on October 21, 2020 (incorporated by reference to Exhibit 3.1 to Simmons First National Corporation’s Current Report on Form 8-K filed October 22, 2020 (File No. 000-06253)).
4.1	Instruments defining the rights of security holders, including indentures. Simmons First National Corporation hereby agrees to furnish copies of instruments defining the rights of holders of long-term debt of the Corporation and its consolidated subsidiaries to the U.S. Securities and Exchange Commission upon request. No issuance of debt exceeds ten percent of the total assets of the Corporation and its subsidiaries on a consolidated basis.
10.1	Indemnification Agreement for James M. Brogdon dated July 30, 2021 (incorporated by reference to Exhibit 10.1 to Simmons First National Corporation’s Current Report on Form 8-K filed August 5, 2021 (File No. 000-06253).
10.2	Executive Change in Control Severance Agreement for James M. Brogdon dated July 30, 2021 (incorporated by reference to Exhibit 10.2 to Simmons First National Corporation’s Current Report on Form 8-K filed August 5, 2021 (File No. 000-06253)).
10.3	Deferred Compensation Agreement for James M. Brogdon dated July 30, 2021 (incorporated by reference to Exhibit 10.3 to Simmons First National Corporation’s Current Report on Form 8-K filed August 5, 2021 (File No. 000-06253).
14.1	Amended and Restated Simmons First National Corporation Code of Ethics (as amended and restated on July 23, 2020) (incorporated by reference to Exhibit 14.1 to Simmons First National Corporation’s Current Report on Form 8-K filed July 28, 2020 (File No. 000-06253)).
15.1	Awareness Letter of BKD, LLP.*
31.1	Rule 13a-15(e) and 15d-15(e) Certification – George A. Makris, Jr., Chairman and Chief Executive Officer.*
31.2	Rule 13a-15(e) and 15d-15(e) Certification – James M. Brogdon, Executive Vice President, Chief Financial Officer, and Treasurer.*
31.3	Rule 13a-15(e) and 15d-15(e) Certification – David W. Garner, Executive Vice President, Executive Director of Finance and Accounting and Chief Accounting Officer.*
32.1	Certification Pursuant to 18 U.S.C. Sections 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 – George A. Makris, Jr., Chairman and Chief Executive Officer.*
32.2	Certification Pursuant to 18 U.S.C. Sections 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 – James M. Brogdon, Executive Vice President, Chief Financial Officer, and Treasurer.*
32.3	Certification Pursuant to 18 U.S.C. Sections 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 – David W. Garner, Executive Vice President, Executive Director of Finance and Accounting and Chief Accounting Officer.*
101.INS	XBRL Instance Document - the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.
101.SCH	Inline XBRL Taxonomy Extension Schema.
101.CAL	Inline XBRL Taxonomy Extension Calculation Linkbase.
101.DEF	Inline XBRL Taxonomy Extension Definition Linkbase.

81

Exhibit No.	Description
101.LAB	Inline XBRL Taxonomy Extension Labels Linkbase.
101.PRE	Inline XBRL Taxonomy Extension Presentation Linkbase.
104	Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101).

________________________________________________________________________________________________________

* Filed herewith

82

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

SIMMONS FIRST NATIONAL CORPORATION

(Registrant)

Date:	November 5, 2021	/s/ George A. Makris, Jr.
		George A. Makris, Jr.
		Chairman and Chief Executive Officer
Date:	November 5, 2021	/s/ James M. Brogdon
		James M. Brogdon
		Executive Vice President, Chief Financial Officer, and Treasurer
Date:	November 5, 2021	/s/ David W. Garner
		David W. Garner
		Executive Vice President, Executive Director of Finance and
		Accounting and Chief Accounting Officer

83

EX-15.1

Exhibit 15.1

Awareness of Independent Registered

Public Accounting Firm

We acknowledge the incorporation by reference on Form S-3ASR (Registration No. 333-254919) and the Registration Statements on Form S-8 (Registration Nos. 333-134240, 333-134241, 333-134276, 333-134301, 333-134356, 333-138629, 333-186253, 333-186254, 333-197708, 333-206160, 333-234166 and 333-239309) of Simmons First National Corporation (the Company) of our report dated November 5, 2021, included with the Quarterly Report on Form 10-Q for the quarter ended September 30, 2021. Pursuant to Rule 436(c) under the Securities Act of 1933 (the Act), this report should not be considered part of the registration statement prepared or certified by us within the meaning of Sections 7 and 11 of the Act.

BKD, LLP

/s/ BKD, LLP

Little Rock, Arkansas

November 5, 2021

EX-31.1

Exhibit 31.1

CERTIFICATION

I, George A. Makris, Jr., certify that:

1. I have reviewed this quarterly report on Form 10-Q of Simmons First National Corporation;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: November 5, 2021

/s/ George A. Makris, Jr.

George A. Makris, Jr.

Chairman and Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATION

I, James M. Brogdon, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Simmons First National Corporation;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: November 5, 2021

/s/ James M. Brogdon

James M. Brogdon

Executive Vice President, Chief Financial Officer,

and Treasurer

EX-31.3

Exhibit 31.3

CERTIFICATION

I, David W. Garner, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Simmons First National Corporation;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: November 5, 2021

/s/ David W. Garner

David W. Garner

Executive Vice President, Executive Director of Finance

and Accounting and Chief Accounting Officer

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350, AS ADOPTED

PURSUANT TO SECTION 906 OF

THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Simmons First National Corporation (the “Company”), on Form 10-Q for the period ended September 30, 2021, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, George A. Makris, Jr., Chairman and Chief Executive Officer of the Company, hereby certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge:

(1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: November 5, 2021

/s/ George A. Makris, Jr.

George A. Makris, Jr.

Chairman and Chief Executive Officer

EX-32.2

Exhibit 32.2

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350, AS ADOPTED

PURSUANT TO SECTION 906 OF

THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Simmons First National Corporation (the “Company”), on Form 10-Q for the period ended September 30, 2021 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, James M. Brogdon, Executive Vice President, Chief Financial Officer, and Treasurer of the Company, hereby certify pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge:

(1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: November 5, 2021

/s/ James M. Brogdon

James M. Brogdon

Executive Vice President, Chief Financial Officer

and Treasurer

EX-32.3

Exhibit 32.3

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350, AS ADOPTED

PURSUANT TO SECTION 906 OF

THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Simmons First National Corporation (the “Company”), on Form 10-Q for the period ended September 30, 2021, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, David W. Garner, Executive Vice President, Executive Director of Finance and Accounting and Chief Accounting Officer of the Company, hereby certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge:

(1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: November 5, 2021

/s/ David W. Garner

David W. Garner

Executive Vice President, Executive Director of Finance

and Accounting and Chief Accounting Officer

XML

Cover Page - shares	9 Months Ended
	Sep. 30, 2021	Nov. 03, 2021
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2021
Document Transition Report	false
Entity File Number	000-06253
Entity Registrant Name	SIMMONS FIRST NATIONAL CORP
Entity Incorporation, State or Country Code	AR
Entity Tax Identification Number	71-0407808
Entity Address, Address Line One	501 Main Street
Entity Address, City or Town	Pine Bluff
Entity Address, State or Province	AR
Entity Address, Postal Zip Code	71601
City Area Code	870
Local Phone Number	541-1000
Title of 12(b) Security	Common stock, par value $0.01 per share
Trading Symbol	SFNC
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding (in shares)		114,829,584
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q3
Amendment Flag	false
Entity Central Index Key	0000090498
Current Fiscal Year End Date	--12-31

XML

Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
ASSETS
Cash and non-interest bearing balances due from banks	$ 225,500	$ 217,499
Interest bearing balances due from banks and federal funds sold	1,555,913	3,254,653
Cash and cash equivalents	1,781,413	3,472,152
Interest bearing balances due from banks - time	1,780	1,579
Investment securities:
Held-to-maturity, net of allowance for credit losses of $1,279 and $2,915 at September 30, 2021 and December 31, 2020, respectively	1,516,797	333,031
Available-for-sale securities	6,822,203	3,473,598
Total investments	8,339,000	3,806,629
Mortgage loans held for sale	34,628	137,378
Loans	10,825,227	12,900,897
Allowance for credit losses on loans	(202,508)	(238,050)
Net loans	10,622,719	12,662,847
Premises and equipment	463,924	441,692
Premises held for sale	0	15,008
Foreclosed assets and other real estate owned	11,759	18,393
Interest receivable	68,405	72,597
Bank owned life insurance	421,762	255,630
Goodwill	1,075,305	1,075,305
Other intangible assets	100,428	111,110
Other assets	304,807	289,432
Total assets	23,225,930	22,359,752
Deposits:
Non-interest bearing transaction accounts	4,918,845	4,482,091
Interest bearing transaction accounts and savings deposits	10,697,451	9,672,608
Time deposits	2,455,774	2,832,327
Total deposits	18,072,070	16,987,026
Federal funds purchased and securities sold under agreements to repurchase	217,276	299,111
Other borrowings	1,338,585	1,342,067
Subordinated notes and debentures	383,278	382,874
Other liabilities held for sale	0	154,620
Accrued interest and other liabilities	184,190	217,398
Total liabilities	20,195,399	19,383,096
Stockholders’ equity:
Preferred stock, 40,040,000 shares authorized; Series D, $0.01 par value, $1,000 liquidation value per share; 767 shares issued and outstanding at September 30, 2021 and December 31, 2020	767	767
Common stock, Class A, $0.01 par value; 175,000,000 shares authorized at September 30, 2021 and December 31, 2020; 106,603,231 and 108,077,662 shares issued and outstanding at September 30, 2021 and December 31, 2020, respectively	1,066	1,081
Surplus	1,974,561	2,014,076
Undivided profits	1,065,566	901,006
Accumulated other comprehensive (loss) income	(11,429)	59,726
Total stockholders’ equity	3,030,531	2,976,656
Total liabilities and stockholders’ equity	$ 23,225,930	$ 22,359,752

XML

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Allowance for credit losses on HTM	$ 1,279	$ 2,915
Available-for-sale, allowance for credit loss	0	312
Available-for-sale, amortized cost	$ 6,852,465	$ 3,397,043
Preferred stock, Series D, shares authorized (in shares)	40,040,000	40,040,000
Preferred stock, Series D, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, Series D, liquidation value (in dollars per share)	$ 1,000	$ 1,000
Preferred stock, Series D, shares issued (in shares)	767	767
Preferred stock, Series D, shares outstanding (in shares)	767	767
Common stock, Class A, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, Class A, shares authorized (in shares)	175,000,000	175,000,000
Common stock, Class A, shares issued (in shares)	106,603,231	108,077,662
Common stock, Class A, shares outstanding (in shares)	106,603,231	108,077,662

XML

Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
INTEREST INCOME
Loans, including fees	$ 132,216	$ 163,180	$ 417,444	$ 527,656
Interest bearing balances due from banks and federal funds sold	763	623	2,212	3,667
Investment securities	30,717	14,910	79,418	47,326
Mortgage loans held for sale	230	1,012	1,255	1,961
TOTAL INTEREST INCOME	163,926	179,725	500,329	580,610
INTEREST EXPENSE
Deposits	9,116	16,206	33,077	65,489
Federal funds purchased and securities sold under agreements to repurchase	70	335	507	1,431
Other borrowings	4,893	4,943	14,592	14,783
Subordinated notes and debentures	4,610	4,631	13,702	14,133
TOTAL INTEREST EXPENSE	18,689	26,115	61,878	95,836
NET INTEREST INCOME	145,237	153,610	438,451	484,774
Provision for credit loss expense	(19,890)	22,981	(31,396)	68,030
NET INTEREST INCOME AFTER PROVISION FOR CREDIT LOSSES	165,127	130,629	469,847	416,744
NON-INTEREST INCOME
Investment banking income	732	557	2,081	2,005
Bank owned life insurance income	2,573	1,591	6,134	4,334
Gain on sale of securities, net	5,248	22,305	15,846	54,790
Other income	6,220	5,380	24,590	27,990
TOTAL NON-INTEREST INCOME	48,550	69,479	145,214	198,008
NON-INTEREST EXPENSE
Salaries and employee benefits	61,902	61,144	182,503	186,712
Occupancy expense, net	9,361	9,647	27,764	28,374
Furniture and equipment expense	4,895	6,231	15,169	18,098
Other real estate and foreclosure expense	339	602	1,545	1,201
Deposit insurance	1,870	2,244	4,865	7,557
Merger related costs	1,401	902	2,320	3,800
Other operating expenses	34,565	35,807	107,826	113,154
TOTAL NON-INTEREST EXPENSE	114,333	116,577	341,992	358,896
INCOME BEFORE INCOME TAXES	99,344	83,531	273,069	255,856
Provision for income taxes	18,770	17,633	50,151	53,920
NET INCOME	80,574	65,898	222,918	201,936
Preferred stock dividends	13	13	39	39
NET INCOME AVAILABLE TO COMMON STOCKHOLDERS	$ 80,561	$ 65,885	$ 222,879	$ 201,897
BASIC EARNINGS PER SHARE (in dollars per share)	$ 0.75	$ 0.60	$ 2.06	$ 1.83
DILUTED EARNINGS PER SHARE (in dollars per share)	$ 0.74	$ 0.60	$ 2.05	$ 1.83
Trust income
NON-INTEREST INCOME
Non-interest income	$ 7,145	$ 6,744	$ 21,049	$ 21,148
Service charges on deposit accounts
NON-INTEREST INCOME
Non-interest income	11,557	10,385	31,322	32,283
Other service charges and fees
NON-INTEREST INCOME
Non-interest income	1,964	1,764	5,934	4,841
Mortgage lending income
NON-INTEREST INCOME
Non-interest income	5,818	13,971	16,755	31,476
SBA lending income
NON-INTEREST INCOME
Non-interest income	191	304	718	845
Debit and credit card fees
NON-INTEREST INCOME
Non-interest income	$ 7,102	$ 6,478	$ 20,785	$ 18,296

XML

Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Statement of Comprehensive Income [Abstract]
Net income	$ 80,574	$ 65,898	$ 222,918	$ 201,936
OTHER COMPREHENSIVE INCOME (LOSS)
Unrealized holding gains (losses) arising during the period on available-for-sale securities	(41,398)	4,975	(95,313)	82,703
Less: Reclassification adjustment for realized gains included in net income	5,248	22,305	15,846	54,790
Less: Realized loss on available-for-sale securities interest rate hedges	(13,722)	0	(13,722)	0
Amortization of securities transferred from available for sale to held to maturity	1,106	0	1,106	0
Other comprehensive income (loss), before tax effect	(31,818)	(17,330)	(96,331)	27,913
Less: Tax effect of other comprehensive income (loss)	(8,316)	(4,529)	(25,176)	7,295
TOTAL OTHER COMPREHENSIVE INCOME (LOSS)	(23,502)	(12,801)	(71,155)	20,618
COMPREHENSIVE INCOME	$ 57,072	$ 53,097	$ 151,763	$ 222,554

XML

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
OPERATING ACTIVITIES
Net income	$ 222,918	$ 201,936
Adjustments to reconcile net income to net cash (used in) provided by operating activities:
Depreciation and amortization	35,396	36,590
Provision for credit losses	(31,396)	68,030
Gain on sale of investments	(15,846)	(54,790)
Net accretion of investment securities and assets	(36,929)	(43,286)
Net amortization on borrowings	404	406
Stock-based compensation expense	12,591	10,750
Gain on sale of premises held for sale	(591)	(33)
Gain on sale of foreclosed assets held for sale	(76)	(475)
Gain on sale of mortgage loans held for sale	(29,222)	(28,994)
Gain on sale of other intangibles	0	(301)
Gain on sale of banking operations	(5,316)	(8,094)
Fair value write-down of closed branches	0	1,465
Deferred income taxes	3,585	2,920
Income from bank owned life insurance	(6,229)	(4,983)
Originations of mortgage loans held for sale	(752,480)	(851,356)
Proceeds from sale of mortgage loans held for sale	884,452	745,723
Changes in assets and liabilities:
Interest receivable	4,191	(15,601)
Other assets	(22,677)	(7,009)
Accrued interest and other liabilities	(41,674)	43,696
Income taxes payable	(1,199)	(20,206)
Net cash provided by operating activities	219,902	76,388
INVESTING ACTIVITIES
Net change in loans	2,056,058	243,826
Proceeds from sale of loans	26,472	32,742
Net change in due from banks - time	(201)	493
Purchases of premises and equipment, net	(36,832)	(22,697)
Proceeds from sale of premises held for sale	5,621	123
Proceeds from sale of foreclosed assets held for sale	14,594	9,705
Proceeds from sale of available-for-sale securities	342,577	1,717,364
Proceeds from maturities of available-for-sale securities	559,259	2,218,259
Purchases of available-for-sale securities	(4,786,533)	(3,169,534)
Proceeds from maturities of held-to-maturity securities	13,804	10,520
Purchases of held-to-maturity securities	(694,734)	(16,997)
Purchases of bank owned life insurance	(160,000)	0
Proceeds from bank owned life insurance death benefits	3,814	1,425
Disposition of assets and liabilities held for sale	(134,166)	181,271
Net cash (used in) provided by investing activities	(2,790,267)	1,206,500
FINANCING ACTIVITIES
Net change in deposits	1,075,422	191,714
Repayments of subordinated debentures	0	(5,927)
Dividends paid on preferred stock	(39)	(39)
Dividends paid on common stock	(58,319)	(56,141)
Net change in other borrowed funds	(3,482)	45,170
Net change in federal funds purchased and securities sold under agreements to repurchase	(81,835)	163,549
Net shares issued (cancelled) under stock compensation plans	1,222	(3,355)
Shares issued under employee stock purchase plan	1,170	956
Repurchases of common stock	(54,513)	(93,307)
Net cash provided by financing activities	879,626	242,620
(DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS	(1,690,739)	1,525,508
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	3,472,152	996,623
CASH AND CASH EQUIVALENTS, END OF PERIOD	$ 1,781,413	$ 2,522,131

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Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Preferred Stock	Common Stock	Surplus	Accumulated Other Comprehensive (Loss) Income	Undivided Profits	Cumulative Effect, Period of Adoption, Adjustment	Cumulative Effect, Period of Adoption, Adjustment Undivided Profits
Balance at Dec. 31, 2019	$ 2,988,924	$ 767	$ 1,136	$ 2,117,282	$ 20,891	$ 848,848	$ (128,101)	$ (128,101)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive (loss) income	222,554				20,618	201,936
Stock issued for employee stock purchase plan	956		1	955
Stock-based compensation plans, net	7,395		2	7,393
Stock repurchases	(93,307)		(49)	(93,258)
Dividends on preferred stock	(39)					(39)
Dividends on common stock	(56,141)					(56,141)
Balance at Sep. 30, 2020	$ 2,942,241	767	1,090	2,032,372	41,509	866,503
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accounting Standards Update [Extensible List]	Accounting Standards Update 2016-13 [Member]
Balance at Jun. 30, 2020	$ 2,904,703	767	1,090	2,029,383	54,310	819,153
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive (loss) income	53,097				(12,801)	65,898
Stock-based compensation plans, net	2,989			2,989
Dividends on preferred stock	(13)					(13)
Dividends on common stock	(18,535)					(18,535)
Balance at Sep. 30, 2020	2,942,241	767	1,090	2,032,372	41,509	866,503
Balance at Dec. 31, 2020	2,976,656	767	1,081	2,014,076	59,726	901,006
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive (loss) income	151,763				(71,155)	222,918
Stock issued for employee stock purchase plan	1,170		1	1,169
Stock-based compensation plans, net	13,813		3	13,810
Stock repurchases	(54,513)		(19)	(54,494)
Dividends on preferred stock	(39)					(39)
Dividends on common stock	(58,319)					(58,319)
Balance at Sep. 30, 2021	3,030,531	767	1,066	1,974,561	(11,429)	1,065,566
Balance at Jun. 30, 2021	3,039,366	767	1,084	2,021,128	12,073	1,004,314
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive (loss) income	57,072				(23,502)	80,574
Stock-based compensation plans, net	4,848			4,848
Stock repurchases	(51,433)		(18)	(51,415)
Dividends on preferred stock	(13)					(13)
Dividends on common stock	(19,309)					(19,309)
Balance at Sep. 30, 2021	$ 3,030,531	$ 767	$ 1,066	$ 1,974,561	$ (11,429)	$ 1,065,566

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Consolidated Statements of Stockholders' Equity (Parenthetical) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Statement of Stockholders' Equity [Abstract]
Stock issued for employee stock purchase plan, shares (in shares)			60,697	43,681
Stock issued for compensation plans, shares (in shares)	22,767	29,392	401,993	273,835
Stock repurchased (in shares)	1,806,205		1,937,121	4,922,336
Cash dividends per share (in dollars per share)	$ 0.18	$ 0.17	$ 0.54	$ 0.51

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Preparation of Interim Financial Statements

9 Months Ended

Sep. 30, 2021

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Preparation of Interim Financial Statements

PREPARATION OF INTERIM FINANCIAL STATEMENTS

Description of Business and Organizational Structure

Simmons First National Corporation (“Company”) is a Mid-South financial holding company headquartered in Pine Bluff, Arkansas, and the parent company of Simmons Bank, an Arkansas state-chartered bank that has been in operation since 1903 (“Simmons Bank” or the “Bank”). Simmons First Insurance Services, Inc. and Simmons First Insurance Services of TN, LLC are wholly-owned subsidiaries of Simmons Bank and are insurance agencies that offer various lines of personal and corporate insurance coverage to individual and commercial customers. The Company, through its subsidiaries, offers, among other things, consumer, real estate and commercial loans; checking, savings and time deposits; and specialized products and services (such as credit cards, trust and fiduciary services, investments, agricultural finance lending, equipment lending, insurance and Small Business Administration (“SBA”) lending) from approximately 185 financial centers as of September 30, 2021, located throughout market areas in Arkansas, Kansas, Missouri, Oklahoma, Tennessee and Texas.

Basis of Presentation

The accompanying unaudited consolidated financial statements have been prepared based upon Securities and Exchange Commission (“SEC”) rules that permit reduced disclosures for interim periods. Certain information and footnote disclosures have been condensed or omitted in accordance with those rules and regulations. The accompanying consolidated balance sheet as of December 31, 2020, was derived from audited financial statements. In the opinion of management, these financial statements reflect all adjustments that are necessary for a fair presentation of interim results of operations, including normal recurring accruals. Significant intercompany accounts and transactions have been eliminated in consolidation. The results for the interim periods are not necessarily indicative of results for the full year. For a more complete discussion of significant accounting policies and certain other information, this report should be read in conjunction with the consolidated financial statements and accompanying notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2020, which was filed with the SEC on February 25, 2021.

The preparation of financial statements, in accordance with accounting principles generally accepted in the United States (“US GAAP”), requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, income items and expenses and disclosure of contingent assets and liabilities. The estimates and assumptions used in the accompanying consolidated financial statements are based upon management’s evaluation of the relevant facts and circumstances as of the date of the consolidated financial statements and actual results may differ from these estimates. Such estimates include, but are not limited to, the Company’s allowance for credit losses.

Material estimates that are particularly susceptible to significant change relate to the determination of the allowance for credit losses, the valuation of real estate acquired in connection with foreclosures or in satisfaction of loans and the valuation of acquired loans. Management obtains independent appraisals for significant properties in connection with the determination of the allowance for credit losses and the valuation of foreclosed assets.

During the second and third quarters of 2021, certain debit and credit card transaction fees were reclassified from non-interest expense to non-interest income. These transaction fees, as well as additional certain prior year amounts, have been reclassified to conform to the current year financial statement presentation. These changes and reclassifications did not impact previously reported net income or comprehensive income. 

Recently Adopted Accounting Standards

Reference Rate Reform – In March 2020, the Financial Accounting Standards Board (“FASB”) issued Accounting Standard Update (“ASU”) No. 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting (“ASU 2020-04”), which provides relief for companies preparing for discontinuation of interest rates such as the London Interbank Offered Rate (“LIBOR”). LIBOR is a benchmark interest rate referenced in a variety of agreements that are used by numerous entities. On March 5, 2021, the U.K. Financial Conduct Authority (“FCA”) announced that the majority of LIBOR rates will no longer be published after December 31, 2021, although a number of key settings will continue until June

2023, to support the rundown of legacy contracts only. As a result, LIBOR should be discontinued as a reference rate. Other interest rates used globally could also be discontinued for similar reasons. ASU 2020-04 provides optional expedients and exceptions to contracts, hedging relationships and other transactions affected by reference rate reform. The main provisions for contract modifications include optional relief by allowing the modification as a continuation of the existing contract without additional analysis and other optional expedients regarding embedded features. Optional expedients for hedge accounting permits changes to critical terms of hedging relationships and to the designated benchmark interest rate in a fair value hedge and also provides relief for assessing hedge effectiveness for cash flow hedges. Companies are able to apply ASU 2020-04 immediately; however, the guidance will only be available for a limited time (generally through December 31, 2022). The Company formed a LIBOR Transition Team in 2020, has created standard LIBOR replacement language for new and modified loan notes, and is monitoring the remaining loans with LIBOR rates monthly to ensure progress in updating these loans with acceptable LIBOR replacement language or converting them to other interest rates. The Company has not been offering LIBOR-indexed rates originated by other banks, subject to the Company’s determination that the LIBOR replacement language in the loan documents meets the Company’s standards. Pursuant to the Interagency Statement on LIBOR Transition issued in November 2020, the Company will not enter into any new LIBOR-based credit agreements after December 31, 2021. The adoption of ASU 2020-04 has not had a material impact on the Company’s financial position or results of operations.

In January 2021, the FASB issued ASU No. 2021-01, Reference Rate Reform (Topic 848): Scope (“ASU 2021-01”), which clarifies that certain optional expedients and exceptions in Accounting Standard Codification (“ASC”) 848 for contract modifications and hedge accounting apply to derivatives that are affected by the changes in the interest rates used for margining, discounting, or contract price alignment for derivative instruments that are being implemented as part of the market-wide transition to new reference rates (commonly referred to as the “discounting transition”). ASU 2021-01 also amends the expedients and exceptions in ASC 848 to capture the incremental consequences of the scope clarification and to tailor the existing guidance to derivative instruments affected by the discounting transition. ASU 2021-01 was effective upon issuance and generally can be applied through December 31, 2022. ASU 2021-01 did not have a material impact on the Company’s financial position or results of operations.

Income Taxes – In December 2019, the FASB issued ASU No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes (“ASU 2019-12”), that removes certain exceptions for investments, intraperiod allocations and interim calculations, and adds guidance to reduce complexity in accounting for income taxes. ASU 2019-12 introduces the following new guidance: i) guidance to evaluate whether a step-up in tax basis of goodwill relates to a business combination in which book goodwill was recognized or a separate transaction and ii) a policy election to not allocate consolidated income taxes when a member of a consolidated tax return is not subject to income tax. Additionally, ASU 2019-12 changes the following current guidance: i) making an intraperiod allocation, if there is a loss in continuing operations and gains outside of continuing operations, ii) determining when a deferred tax liability is recognized after an investor in a foreign entity transitions to or from the equity method of accounting, iii) accounting for tax law changes and year-to-date losses in interim periods, and iv) determining how to apply the income tax guidance to franchise taxes that are partially based on income. ASU 2019-12 is effective for fiscal years, and interim periods within those fiscal years beginning after December 15, 2020. The adoption of ASU 2019-12 did not have a material impact on the Company’s operations, financial position or disclosures.

Fair Value Measurement Disclosures – In August 2018, the FASB issued ASU No. 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework-Changes to the Disclosure Requirements for Fair Value Measurement (“ASU 2018-13”), that eliminates, amends and adds disclosure requirements for fair value measurements. These amendments are part of FASB’s disclosure review project and are expected to reduce costs for preparers while providing more decision-useful information for financial statement users. The eliminated disclosure requirements include the 1) the amount of, and reasons for, transfers between Level 1 and Level 2 of the fair value hierarchy; 2) the policy of timing of transfers between levels of the fair value hierarchy; and 3) the valuation processes for Level 3 fair value measurements. Among other modifications, the amended disclosure requirements remove the term “at a minimum” from the phrase “an entity shall disclose at a minimum” to promote the appropriate exercise of discretion by entities and clarifies that the measurement uncertainty disclosure is to communicate information about the uncertainty in measurement as of the reporting date. Under the new disclosure requirements, entities must disclose the changes in unrealized gains or losses included in other comprehensive income for recurring Level 3 fair value measurements held at the end of the reporting period and the range and weighted average used to develop significant unobservable inputs for Level 3 fair value measurements. ASU 2018-13 is effective for fiscal years beginning after December 15, 2019, and interim periods within those fiscal years, with early adoption permitted. The adoption of ASU 2018-13 did not have a material impact on the Company’s fair value disclosures.

Credit Losses on Financial Instruments – In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments (“ASU 2016-13”), which requires earlier measurement of credit losses, expands the range of information considered in determining expected credit losses and enhances disclosures. The main objective of ASU 2016-13 is to provide financial statement users with more decision-useful information about the expected credit losses on financial instruments and other commitments to extend credit held by a reporting entity at each reporting date. The amendments replaced the incurred loss impairment methodology in US GAAP with a methodology (the current expected credit losses, or “CECL”, methodology) that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates.

The CECL methodology utilizes a lifetime “expected credit loss” measurement objective for the recognition of credit losses for loans, held-to-maturity debt securities and other receivables measured at amortized cost at the time the financial asset is originated or acquired. The allowance for credit losses is adjusted each period for changes in expected lifetime credit losses. This methodology replaced the multiple existing impairment methods in previous guidance, which generally required that a loss be incurred before it is recognized. Within the life cycle of a loan or other financial asset, this new guidance will generally result in the earlier recognition of the provision for credit losses and the related allowance for credit losses than previous practice. For available-for-sale debt securities that the Company intends to hold and where fair value is less than cost, credit-related impairment, if any, will be recognized through an allowance for credit losses and adjusted each period for changes in credit risk.

The effective date for these amendments was for fiscal years beginning after December 15, 2019. In preparation for implementation of ASU 2016-13, the Company formed a cross functional team that assessed its data and system needs and evaluated the potential impact of adopting the new guidance. The Company anticipated a significant change in the processes and procedures to calculate the loan losses, including changes in assumptions and estimates to consider expected credit losses over the life of the loan versus the prior accounting practice that utilized the incurred loss model.

On March 27, 2020, the Coronavirus Aid, Relief, and Economic Security Act (“CARES Act”) was signed in to law by the President of the United States (“President”) and allows the option to temporarily defer or suspend the adoption of ASU 2016-13. During the deferral, a registrant would continue to use the incurred loss model for the allowance for loan and lease losses and would be in accordance with US GAAP. The Company did not elect to temporarily defer the adoption of ASU 2016-13 and adopted the new standard as of January 1, 2020. Upon adoption, the Company recorded an additional allowance for credit losses on loans of approximately $151.4 million and an adjustment to the reserve for unfunded commitments recorded in other liabilities of $24.0 million. The Company also recorded an additional allowance for credit losses on investment securities of $742,000. The impact at adoption was reflected as an adjustment to beginning retained earnings, net of income taxes, in the amount of $128.1 million.

The significant impact to the Company’s allowance for credit losses at the date of adoption was driven by the substantial amount of loans acquired held by the Company. The Company had approximately one third of total loans categorized as acquired at the adoption date with very little reserve allocated to them due to the previous incurred loss impairment methodology. As such, the amount of the CECL adoption impact was greater on the Company when compared to a non-acquisitive bank of a similar size.

In December 2018, the Federal Reserve, Office of the Comptroller of the Currency and Federal Deposit Insurance Corporation (“FDIC”) (collectively, the “agencies”) issued a final rule revising regulatory capital rules in anticipation of the adoption of ASU 2016-13 that provided an option to phase in over a three year period on a straight line basis the day-one impact on earnings and Tier 1 capital (the “CECL Transition Provision”).

In March 2020 and in response to the COVID-19 pandemic, the agencies issued a new regulatory capital rule revising the CECL Transition Provision to delay the estimated impact on regulatory capital stemming from the implementation of ASU 2016-13. The rule provides banking organizations that implement CECL before the end of 2020 the option to delay for two years an estimate of CECL’s effect on regulatory capital, followed by a three-year transition period (the “2020 CECL Transition Provision”). The Company elected to apply the 2020 CECL Transition Provision.

The Company used the prospective transition approach for financial assets purchased with credit deterioration (“PCD”) that were previously classified as purchased credit impaired (“PCI”) and accounted for under ASC 310-30, Loans and Debt Securities Acquired with Deteriorated Credit Quality. The Company increased the allowance for credit losses by approximately $5.4 million at adoption for the assets previously identified as PCI. In accordance with ASU 2016-13, the Company did not reassess whether PCI assets met the criteria of PCD assets as of the date of adoption.

Recently Issued Accounting Standards

Leases - In July 2021, the FASB issued ASU No. 2021-05, Leases (Topic 842): Lessors-Certain Leases with Variable Lease Payments (“ASU 2021-05”), that amends lease classification requirements for lessors. In accordance with ASU 2021-05, lessors should classify and account for a lease that have variable lease payments that do not depend on a reference index rate as an operating lease if both of the following criteria are met: i) the lease would have been classified as a sales-type lease or a direct financing lease under the previous lease classification criteria and ii) sales-type or direct financing lease classification would result in a Day 1 loss. ASU 2021-05 is effective for public business entities for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2021, with early adoption permitted. The Company is currently evaluating the impact of this standard, but the standard is not expected to have a material impact on the Company’s results of operations, financial position or disclosures.

There have been no other significant changes to the Company’s accounting policies from the 2020 Form 10-K. Presently, the Company is not aware of any other changes to the Accounting Standards Codification that will have a material impact on its present or future financial position or results of operations.

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Acquisitions (Subsequent Event)

9 Months Ended

Sep. 30, 2021

Business Combination and Asset Acquisition [Abstract]

Acquisitions (Subsequent Event)

ACQUISITIONS (Subsequent Event)

Landmark Community Bank

On June 4, 2021, the Company and the Bank entered into an Agreement and Plan of Merger (“Landmark Agreement”) with Landmark Community Bank (“Landmark”), headquartered in Collierville, Tennessee. The merger was completed on October 8, 2021, at which time Landmark was merged with and into the Bank, with the Bank continuing as the surviving entity. Pursuant to the terms of the Landmark Agreement, holders of Landmark’s common stock and common stock equivalents received, in the aggregate, 4,499,872 shares of the Company’s common stock and $6,451,727.43 in cash.

Prior to the acquisition, Landmark conducted banking business from 8 branches located in the Memphis and Nashville, Tennessee, metropolitan areas. As of September 30, 2021, Landmark had approximately $978.8 million in assets, $784.4 million in loans and $813.3 million in deposits.

The purchase price allocation and certain fair value measurements remain preliminary due to the timing of the merger. Due to the recent closing, management remains in the early stages of reviewing the estimated fair values and evaluating the assumed tax positions of this merger. The Company expects to finalize its analysis of the acquired assets and assumed liabilities in this transaction within one year of the merger.

Triumph Bancshares, Inc.

On June 4, 2021, the Company entered into an Agreement and Plan of Merger (“Triumph Agreement”) with Triumph Bancshares, Inc. (“Triumph”), the parent company of Triumph Bank, headquartered in Memphis, Tennessee. The merger was completed on October 8, 2021, at which time Triumph was merged with and into the Company, with the Company continuing as the surviving corporation. Pursuant to the terms of the Triumph Agreement, holders of Triumph’s common stock and common stock equivalents received, in the aggregate, 4,164,712 shares of the Company’s common stock and $1,693,402.93 in cash.

Prior to the acquisition, Triumph conducted banking business from 6 branches located in the Memphis and Nashville, Tennessee, metropolitan areas. As of September 30, 2021, Triumph had approximately $855.3 million in assets, $708.0 million in loans and $724.0 million in deposits.

The purchase price allocation and certain fair value measurements remain preliminary due to the timing of the merger. Due to the recent closing, management remains in the early stages of reviewing the estimated fair values and evaluating the assumed tax positions of this merger. The Company expects to finalize its analysis of the acquired assets and assumed liabilities in this transaction within one year of the merger.

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Investment Securities

9 Months Ended

Sep. 30, 2021

Investments, Debt and Equity Securities [Abstract]

Investment Securities

INVESTMENT SECURITIES

Held-to-maturity securities (“HTM”), which include any security for which the Company has both the positive intent and ability to hold until maturity, are carried at historical cost adjusted for amortization of premiums and accretion of discounts. Premiums and discounts are amortized and accreted, respectively, to interest income using the constant effective yield method over the security’s estimated life. Prepayments are anticipated for mortgage-backed and SBA securities. Premiums on callable securities are amortized to their earliest call date.

Available-for-sale securities (“AFS”), which include any security for which the Company has no immediate plan to sell but which may be sold in the future, are carried at fair value. Realized gains and losses, based on specifically identified amortized cost of the individual security, are included in other income. Unrealized gains and losses are recorded, net of related income tax effects, in stockholders’ equity, further discussed below. Premiums and discounts are amortized and accreted, respectively, to interest income using the constant effective yield method over the estimated life of the security. Prepayments are anticipated for mortgage-backed and SBA securities. Premiums on callable securities are amortized to their earliest call date.

During the third quarter of 2021, the Company transferred, at fair value, $500.8 million of securities from the available-for-sale portfolio to the held-to-maturity portfolio. The related net unrealized gains of $1.1 million remained in accumulated other comprehensive income (loss) and will be amortized over the remaining life of the securities. No gains or losses on these securities were recognized at the time of transfer.

The amortized cost, fair value and allowance for credit losses of investment securities that are classified as HTM are as follows: 

(In thousands)	Amortized Cost		Allowance for Credit Losses		Net Carrying Amount		Gross Unrealized Gains		Gross Unrealized (Losses)		Estimated Fair Value
Held-to-maturity
September 30, 2021
U.S. Government agencies	$	232,549	$	—	$	232,549	$	—	$	(5,179)	$	227,370
Mortgage-backed securities	57,930		—		57,930		417		(1,024)		57,323
State and political subdivisions	1,210,287		(1,196)		1,209,091		2,206		(24,962)		1,186,335
Other securities	17,310		(83)		17,227		—		(339)		16,888
Total HTM	$	1,518,076	$	(1,279)	$	1,516,797	$	2,623	$	(31,504)	$	1,487,916
December 31, 2020
Mortgage-backed securities	$	22,354	$	—	$	22,354	$	683	$	—	$	23,037
State and political subdivisions	312,416		(2,307)		310,109		8,148		(30)		318,227
Other securities	1,176		(608)		568		93		—		661
Total HTM	$	335,946	$	(2,915)	$	333,031	$	8,924	$	(30)	$	341,925

Mortgage-backed securities (“MBS”) are commercial MBS, secured by commercial properties, and residential MBS, generally secured by single-family residential properties. As of September 30, 2021, HTM MBS consists of $5.4 million and $52.5 million of commercial MBS and residential MBS, respectively. As of December 31, 2020, HTM MBS consists of $7.7 million and $14.7 million of commercial MBS and residential MBS, respectively.

The amortized cost, fair value and allowance for credit losses of investment securities that are classified as AFS are as follows:

(In thousands)	Amortized Cost		Allowance for Credit Losses		Gross Unrealized Gains		Gross Unrealized (Losses)		Estimated Fair Value
Available-for-sale
September 30, 2021
U.S. Treasury	$	300	$	—	$	—	$	—	$	300
U.S. Government agencies	361,452		—		635		(7,705)		354,382
Mortgage-backed securities	4,434,981		—		14,741		(28,102)		4,421,620
State and political subdivisions	1,574,674		—		17,877		(17,343)		1,575,208
Other securities	467,336		—		7,328		(3,971)		470,693
Total AFS	$	6,838,743	$	—	$	40,581	$	(57,121)	$	6,822,203
December 31, 2020
U.S. Government agencies	$	477,693	$	—	$	844	$	(1,300)	$	477,237
Mortgage-backed securities	1,374,769		—		21,261		(1,094)		1,394,936
State and political subdivisions	1,416,136		(217)		55,111		(307)		1,470,723
Other securities	128,445		(95)		2,447		(95)		130,702
Total AFS	$	3,397,043	$	(312)	$	79,663	$	(2,796)	$	3,473,598

As of September 30, 2021, AFS MBS consists of $1.56 billion and $2.86 billion of commercial MBS and residential MBS, respectively. As of December 31, 2020, AFS MBS consists of $406.1 million and $988.8 million of commercial MBS and residential MBS, respectively.

Accrued interest receivable on HTM and AFS securities at September 30, 2021 was $8.3 million and $20.9 million, respectively, and is included in interest receivable on the consolidated balance sheets. The Company has made the election to exclude all accrued interest receivable from securities from the estimate of credit losses.

The following table summarizes the Company’s AFS investments in an unrealized loss position for which an allowance for credit loss has not been recorded as of September 30, 2021, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position:

	Less Than 12 Months				12 Months or More				Total
(In thousands)	Estimated Fair Value		Gross Unrealized Losses		Estimated Fair Value		Gross Unrealized Losses		Estimated Fair Value		Gross Unrealized Losses
Available-for-sale
U.S. Government agencies	$	190,275	$	(3,759)	$	111,662	$	(3,946)	$	301,937	$	(7,705)
Mortgage-backed securities	2,342,244		(27,380)		46,253		(722)		2,388,497		(28,102)
State and political subdivisions	969,120		(16,056)		23,372		(1,287)		992,492		(17,343)
Other securities	157,974		(3,971)		—		—		157,974		(3,971)
Total AFS	$	3,659,613	$	(51,166)	$	181,287	$	(5,955)	$	3,840,900	$	(57,121)

As of September 30, 2021, the Company’s investment portfolio included $6.8 billion of AFS securities, of which $3.8 billion, or 56.3%, were in an unrealized loss position that were not deemed to have credit losses. A portion of the unrealized losses were related to the Company’s MBS, which are issued and guaranteed by U.S. government-sponsored entities and agencies, and the Company’s state and political subdivision securities, specifically investments in insured fixed rate municipal bonds for which the issuers continue to make timely principal and interest payments under the contractual terms of the securities.

Furthermore, the decline in fair value for each of the above AFS securities is attributable to the rates for those investments yielding less than current market rates. Management does not believe any of the securities are impaired due to reasons of credit quality. Management believes the declines in fair value for the securities are temporary. Management does not have the intent to

sell the securities, and management believes it is more likely than not the Company will not have to sell the securities before recovery of their amortized cost basis.

Allowance for Credit Losses

All MBS held by the Company are issued by U.S. government-sponsored entities and agencies. These securities are either explicitly or implicitly guaranteed by the U.S. government, highly rated by major rating agencies and have a long history of no credit losses. Accordingly, no allowance for credit losses has been recorded for these securities.

Regarding securities issued by state and political subdivisions and other HTM securities, management considers (i) issuer bond ratings, (ii) historical loss rates for given bond ratings, (iii) whether issuers continue to make timely principal and interest payments under the contractual terms of the securities, (iv) internal forecasts, and (v) whether or not such securities provide insurance or other credit enhancement or are pre-refunded by the issuers.

The following table details activity in the allowance for credit losses by investment security type for the three and nine months ended September 30, 2021 on the Company’s HTM and AFS securities portfolios.

(In thousands)	State and Political Subdivisions		Other Securities		Total
Three Months Ended September 30, 2021
Held-to-maturity
Beginning balance, July 1, 2021	$	871	$	261	$	1,132
Provision for credit loss expense	325		(325)		—
Recoveries	—		147		147
Ending balance, September 30, 2021	$	1,196	$	83	$	1,279
Available-for-sale
Beginning balance, July 1, 2021	$	—	$	—	$	—
Net decrease in allowance on previously impaired securities	—		—		—
Ending balance, September 30, 2021	$	—	$	—	$	—
Nine Months Ended September 30, 2021
Held-to-maturity
Beginning balance, January 1, 2021	$	2,307	$	608	$	2,915
Provision for credit loss expense	(1,111)		(72)		(1,183)
Securities charged-off	—		(600)		(600)
Recoveries	—		147		147
Ending balance, September 30, 2021	$	1,196	$	83	$	1,279
Available-for-sale
Beginning balance, January 1, 2021	$	217	$	95	$	312
Reduction due to sales	—		(11)		(11)
Net decrease in allowance on previously impaired securities	(217)		(84)		(301)
Ending balance, September 30, 2021	$	—	$	—	$	—

Activity in the allowance for credit losses by investment security type for the three and nine months ended September 30, 2020 on the Company’s HTM and AFS securities portfolio was as follows:

(In thousands)	State and Political Subdivisions		Other Securities		Total
Three Months Ended September 30, 2020
Held-to-maturity
Beginning balance, July 1, 2020	$	95	$	212	$	307
Provision for credit loss expense	(22)		88		66
Ending balance, September 30, 2020	$	73	$	300	$	373
Available-for-sale
Beginning balance, July 1, 2020	$	371	$	238	$	609
Credit losses on securities not previously recorded	1,137		23		1,160
Reduction due to sales	$	(294)	$	—	$	(294)
Net decrease in allowance on previously impaired securities	(66)		(201)		(267)
Ending balance, September 30, 2020	$	1,148	$	60	$	1,208
Nine Months Ended September 30, 2020
Held-to-maturity
Beginning balance, January 1, 2020	$	—	$	—	$	—
Impact of ASU 2016-13 adoption	58		311		369
Provision for credit loss expense	15		(11)		4
Ending balance, September 30, 2020	$	73	$	300	$	373
Available-for-sale
Beginning balance, January 1, 2020	$	—	$	—	$	—
Impact of ASU 2016-13 adoption	373		—		373
Credit losses on securities not previously recorded	1,130		78		1,208
Reduction due to sales	(244)		—		(244)
Net increase in allowance on previously impaired securities	(111)		(18)		(129)
Ending balance, September 30, 2020	$	1,148	$	60	$	1,208

Based upon the Company’s analysis of the underlying risk characteristics of its AFS portfolio, including credit ratings and other qualitative factors, as previously discussed, there was no provision for credit losses related to AFS securities recorded in the third quarter of 2021 and it was reduced by $312,000 during the nine months ended September 30, 2021. During the three and nine months ended September 30, 2020, the provision for credit losses was $599,000 and $835,000, respectively, related to AFS securities.

The following table summarizes bond ratings for the Company’s HTM portfolio, based upon amortized cost, issued by state and political subdivisions and other securities as of September 30, 2021:

	State and Political Subdivisions
(In thousands)	Not Guaranteed or Pre-Refunded		Other Credit Enhancement or Insurance		Pre-Refunded		Total		Other Securities
Aaa/AAA	$	130,326	$	114,831	$	—	$	245,157	$	—
Aa/AA	495,498		308,656		—		804,154		—
A	45,229		82,432		—		127,661		—
Baa/BBB	1,049		10,302		—		11,351		—
Not Rated	6,322		15,642		—		21,964		17,310
Total	$	678,424	$	531,863	$	—	$	1,210,287	$	17,310

Historical loss rates associated with securities having similar grades as those in the Company’s portfolio have generally not been significant. Pre-refunded securities, if any, have been defeased by the issuer and are fully secured by cash and/or U.S. Treasury

securities held in escrow for payment to holders when the underlying call dates of the securities are reached. Securities with other credit enhancement or insurance continue to make timely principal and interest payments under the contractual terms of the securities. Accordingly, no allowance for credit losses has been recorded for these securities as there is no current expectation of credit losses related to these securities.

Income earned on securities for the three and nine months ended September 30, 2021 and 2020, is as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands)	2021		2020		2021		2020
Taxable:
Held-to-maturity	$	1,127	$	256	$	2,477	$	715
Available-for-sale	15,949		6,937		39,313		26,604
Non-taxable:
Held-to-maturity	4,853		65		9,887		205
Available-for-sale	8,788		7,652		27,741		19,802
Total	$	30,717	$	14,910	$	79,418	$	47,326

The amortized cost and estimated fair value by maturity of securities as of September 30, 2021 are shown in the following table. Securities are classified according to their contractual maturities without consideration of principal amortization, potential prepayments or call options. Accordingly, actual maturities may differ from contractual maturities. 

	Held-to-Maturity				Available-for-Sale
(In thousands)	Amortized Cost		Fair Value		Amortized Cost		Fair Value
One year or less	$	5,644	$	5,678	$	8,385	$	8,423
After one through five years	7,676		7,993		53,515		54,008
After five through ten years	27,094		26,019		487,966		492,654
After ten years	1,419,732		1,390,903		1,853,165		1,844,768
Securities not due on a single maturity date	57,930		57,323		4,434,981		4,421,620
Other securities (no maturity)	—		—		731		730
Total	$	1,518,076	$	1,487,916	$	6,838,743	$	6,822,203

The carrying value, which approximates the fair value, of securities pledged as collateral, to secure public deposits and for other purposes, amounted to $3.69 billion at September 30, 2021 and $2.01 billion at December 31, 2020. 

There were approximately $5.3 million of gross realized gains and $24,500 of gross realized losses from the sale of securities during the three months ended September 30, 2021, and approximately $15.9 million of gross realized gains and $63,600 of gross realized losses from the sale of securities during the nine months ended September 30, 2021. The Company sold approximately $342.6 million of investment securities during the nine months ended September 30, 2021. There were approximately $22.3 of gross realized gains and $1,700 of gross realized losses from the sale of securities during the three months ended September 30, 2020, and approximately $54.8 million of gross realized gains and $4,400 of gross realized losses from the sale of securities during the nine months ended September 30, 2020. During the first half of 2020, the Company sold approximately $1.7 billion of investment securities to create additional liquidity. The income tax expense/benefit related to security gains/losses was 26.135% of the gross amounts in 2021 and 2020.

The Company has entered into various fair value hedging transactions to mitigate the impact of changing interest rates on the fair value of AFS securities. See Note 23: Derivative Instruments for disclosure of the gains and losses recognized on derivative instruments and the cumulative fair value hedging adjustments to the carrying amount of the hedged securities.

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Other Liabilities Held for Sale

9 Months Ended

Sep. 30, 2021

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Other Liabilities Held for Sale

OTHER LIABILITIES HELD FOR SALE

Illinois Branch Sale

On November 30, 2020, the Company’s subsidiary bank, Simmons Bank, entered into a Branch Purchase and Assumption Agreement (the “Citizens Equity Agreement”) with Citizens Equity First Credit Union (“CEFCU”).

On March 12, 2021, CEFCU completed its purchase of certain assets and assumption of certain liabilities (“Illinois Branch Sale”) associated with four Simmons Bank locations in the Metro East area of Southern Illinois, near St. Louis (collectively, the “Illinois Branches”). Pursuant to the terms of the Citizens Equity Agreement, CEFCU assumed certain deposit liabilities and acquired certain loans, as well as cash, personal property and other fixed assets associated with the Illinois Branches. The loan and deposit balances of the Illinois Branches were $354,000 and $137.9 million, respectively.

The Company recognized a gain on sale of $5.3 million related to the Illinois Branches in the nine month period ended September 30, 2021.

As of September 30, 2021, there were no outstanding other liabilities held for sale.

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Loans and Allowance for Credit Losses

9 Months Ended

Sep. 30, 2021

Receivables [Abstract]

Loans and Allowance for Credit Losses

LOANS AND ALLOWANCE FOR CREDIT LOSSES

At September 30, 2021, the Company’s loan portfolio was $10.83 billion, compared to $12.90 billion at December 31, 2020. The various categories of loans are summarized as follows:

	September 30,		December 31,
(In thousands)	2021		2020
Consumer:
Credit cards	$	175,884	$	188,845
Other consumer	182,492		202,379
Total consumer	358,376		391,224
Real Estate:
Construction and development	1,229,740		1,596,255
Single family residential	1,540,701		1,880,673
Other commercial	5,308,902		5,746,863
Total real estate	8,079,343		9,223,791
Commercial:
Commercial	1,821,905		2,574,386
Agricultural	216,735		175,905
Total commercial	2,038,640		2,750,291
Other	348,868		535,591
Total loans	$	10,825,227	$	12,900,897

The above table presents total loans at amortized cost. The difference between amortized cost and unpaid principal balance is primarily premiums and discounts associated with acquisition date fair value adjustments on acquired loans as well as net deferred origination fees totaling $29.4 million and $57.3 million at September 30, 2021 and December 31, 2020, respectively.

Accrued interest on loans, which is excluded from the amortized cost of loans held for investment, totaled $39.2 million and $54.4 million at September 30, 2021 and December 31, 2020, respectively, and is included in interest receivable on the consolidated balance sheets.

Loan Origination/Risk Management – The Company seeks to manage its credit risk by diversifying its loan portfolio, determining that borrowers have adequate sources of cash flow for loan repayment without liquidation of collateral; obtaining and monitoring collateral; and providing an adequate allowance for credit losses by regularly reviewing loans through the internal loan review process. The loan portfolio is diversified by borrower, purpose and industry. The Company seeks to use diversification within the loan portfolio to reduce its credit risk, thereby minimizing the adverse impact on the portfolio if weaknesses develop in either the

economy or a particular segment of borrowers. Collateral requirements are based on credit assessments of borrowers and may be used to recover the debt in case of default.

Consumer – The consumer loan portfolio consists of credit card loans and other consumer loans. Credit card loans are diversified by geographic region to reduce credit risk and minimize any adverse impact on the portfolio. Although they are regularly reviewed to facilitate the identification and monitoring of creditworthiness, credit card loans are unsecured loans, making them more susceptible to economic downturns that result in increased unemployment. Other consumer loans include direct and indirect installment loans and account overdrafts. Loans in this portfolio segment are sensitive to unemployment and other key consumer economic measures.

Real estate – The real estate loan portfolio consists of construction and development loans (“C&D”), single family residential loans and commercial loans. C&D and commercial real estate (“CRE”) loans can be particularly sensitive to valuation of real estate. CRE cycles are inevitable. The long planning and production process for new properties and rapid shifts in business conditions and employment create an inherent tension between supply and demand for commercial properties. While general economic trends often move individual markets in the same direction over time, the timing and magnitude of changes are determined by other forces unique to each market. CRE cycles tend to be local in nature and longer than other credit cycles. Factors influencing the CRE market are traditionally different from those affecting residential real estate markets; thereby making predictions for one market based on the other difficult. Additionally, submarkets within CRE – such as office, industrial, apartment, retail and hotel – also experience different cycles, providing an opportunity to lower the overall risk through diversification across types of CRE loans. Management realizes that local demand and supply conditions will also mean that different geographic areas will experience cycles of different amplitude and duration. The Company monitors these loans closely. 

Commercial – The commercial loan portfolio includes commercial and agricultural loans, representing loans to commercial customers and farmers for use in normal business or farming operations to finance working capital needs, equipment purchases or other expansion projects. Paycheck Protection Program (“PPP”) loans are also included in the commercial loan portfolio. Collection risk in this portfolio is driven by the creditworthiness of the underlying borrowers, particularly cash flow from customers’ business or farming operations. The Company continues its efforts to keep loan terms short, reducing the negative impact of upward movement in interest rates. Term loans are generally set up with one or three year balloons, and the Company has instituted a pricing mechanism for commercial loans. It is standard practice to require personal guaranties on commercial loans for closely-held or limited liability entities.

Paycheck Protection Program Loans – The Company originated loans pursuant to multiple PPP appropriations of the CARES Act which provided 100% federally guaranteed loans for small businesses to cover up to 24 weeks of payroll costs and assistance with mortgage interest, rent and utilities. Notably, these small business loans may be forgiven by the SBA if borrowers maintain their payrolls and satisfy certain other conditions. PPP loans have a zero percent risk-weight for regulatory capital ratios. As of September 30, 2021 and December 31, 2020, the total outstanding balance of PPP loans was $212.1 million and $904.7 million, respectively.

Nonaccrual and Past Due Loans – Loans are considered past due if the required principal and interest payments have not been received as of the date such payments were due. Loans are placed on nonaccrual status when, in management’s opinion, the borrower may be unable to meet payment obligations as they become due, as well as when required by regulatory provisions. Loans may be placed on nonaccrual status regardless of whether or not such loans are considered past due. When interest accrual is discontinued, all unpaid accrued interest is reversed. Interest income is subsequently recognized only to the extent cash payments are received in excess of principal due. 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 amortized cost basis of nonaccrual loans segregated by category of loans are as follows:

	September 30,		December 31,
(In thousands)	2021		2020
Consumer:
Credit cards	$	390	$	301
Other consumer	391		1,219
Total consumer	781		1,520
Real estate:
Construction and development	2,330		3,625
Single family residential	21,068		28,062
Other commercial	17,838		24,155
Total real estate	41,236		55,842
Commercial:
Commercial	16,532		65,244
Agricultural	505		273
Total commercial	17,037		65,517
Total	$	59,054	$	122,879

As of September 30, 2021 and December 31, 2020, nonaccrual loans for which there was no related allowance for credit losses had an amortized cost of $20.2 million and $16.8 million, respectively. These loans are individually assessed and do not hold an allowance due to being adequately collateralized under the collateral-dependent valuation method.

An age analysis of the amortized cost basis of past due loans, including nonaccrual loans, segregated by class of loans is as follows: 

(In thousands)	Gross 30-89 Days Past Due		90 Days or More Past Due		Total Past Due		Current		Total Loans		90 Days Past Due & Accruing
September 30, 2021
Consumer:
Credit cards	$	751	$	253	$	1,004	$	174,880	$	175,884	$	154
Other consumer	925		90		1,015		181,477		182,492		1
Total consumer	1,676		343		2,019		356,357		358,376		155
Real estate:
Construction and development	2,854		605		3,459		1,226,281		1,229,740		5
Single family residential	6,546		6,154		12,700		1,528,001		1,540,701		75
Other commercial	2,293		13,620		15,913		5,292,989		5,308,902		—
Total real estate	11,693		20,379		32,072		8,047,271		8,079,343		80
Commercial:
Commercial	2,130		6,639		8,769		1,813,136		1,821,905		99
Agricultural	140		459		599		216,136		216,735		—
Total commercial	2,270		7,098		9,368		2,029,272		2,038,640		99
Other	7		—		7		348,861		348,868		—
Total	$	15,646	$	27,820	$	43,466	$	10,781,761	$	10,825,227	$	334

(In thousands)	Gross 30-89 Days Past Due		90 Days or More Past Due		Total Past Due		Current		Total Loans		90 Days Past Due & Accruing
December 31, 2020
Consumer:
Credit cards	$	708	$	256	$	964	$	187,881	$	188,845	$	256
Other consumer	2,771		302		3,073		199,306		202,379		13
Total consumer	3,479		558		4,037		387,187		391,224		269
Real estate:
Construction and development	1,375		3,089		4,464		1,591,791		1,596,255		—
Single family residential	23,726		14,339		38,065		1,842,608		1,880,673		253
Other commercial	2,660		9,586		12,246		5,734,617		5,746,863		—
Total real estate	27,761		27,014		54,775		9,169,016		9,223,791		253
Commercial:
Commercial	7,514		7,429		14,943		2,559,443		2,574,386		56
Agricultural	226		187		413		175,492		175,905		—
Total commercial	7,740		7,616		15,356		2,734,935		2,750,291		56
Other	92		—		92		535,499		535,591		—
Total	$	39,072	$	35,188	$	74,260	$	12,826,637	$	12,900,897	$	578

When the Company restructures a loan to a borrower that is experiencing financial difficulty and grants a concession that it would not otherwise consider, a “troubled debt restructuring” (“TDR”) results and the Company classifies the loan as a TDR. The Company grants various types of concessions, primarily interest rate reduction and/or payment modifications or extensions, with an occasional forgiveness of principal.

Once an obligation has been restructured because of such credit problems, it continues to be considered a TDR until paid in full; or, if an obligation yields a market interest rate and no longer has any concession regarding payment amount or amortization, then it is not considered a TDR at the beginning of the calendar year after the year in which the improvement takes place. The Company returns TDRs to accrual status only if (1) all contractual amounts due can reasonably be expected to be repaid within a prudent period and (2) repayment has been in accordance with the contract for a sustained period, typically at least six months.

The provisions in the CARES Act included an election to not apply the guidance on accounting for TDRs to loan modifications, such as extensions or deferrals, related to COVID-19 made between March 1, 2020 and the earlier of (i) December 31, 2020 or (ii) 60 days after the President terminates the COVID-19 national emergency declaration. In March 2020, the federal financial institution regulatory agencies issued an interagency statement encouraging financial institutions to work constructively with borrowers affected by COVID-19 and provided information regarding loan modifications. The relief can only be applied to modifications for borrowers that were not more than 30 days past due as of December 31, 2019. The Company elected to adopt these provisions of the CARES Act. In response to the concerns related to the expiration of the applicable period for which the election to not apply the guidance on accounting for TDRs to loan modifications, the CARES Act was amended in late fourth quarter of 2020 to extend COVID-19 relief related to loan modifications to the earlier of (i) January 1, 2022 or (ii) 60 days after the President terminates the COVID-19 national emergency declaration. As of September 30, 2021, the Company had 35 COVID-19 loan modifications outstanding in the amount of $82.0 million. Deferred interest on these loan modifications will be collected at the end of the note or once regular payments are resumed.

TDRs are individually evaluated for expected credit losses. The Company assesses the exposure for each modification, either by the fair value of the underlying collateral or the present value of expected cash flows, and determines if a specific allowance for credit losses is needed.

The following table presents a summary of TDRs segregated by class of loans.

	Accruing TDR Loans			Nonaccrual TDR Loans			Total TDR Loans
(Dollars in thousands)	Number	Balance		Number	Balance		Number	Balance
September 30, 2021
Real estate:
Single-family residential	28	$	2,994	12	$	1,141	40	$	4,135
Other commercial	2	820		1	1		3	821
Total real estate	30	3,814		13	1,142		43	4,956
Commercial:
Commercial	2	437		2	1,408		4	1,845
Total commercial	2	437		2	1,408		4	1,845
Total	32	$	4,251	15	$	2,550	47	$	6,801
December 31, 2020
Real estate:
Single-family residential	28	$	2,463	18	$	2,736	46	$	5,199
Other commercial	1	49		1	12		2	61
Total real estate	29	2,512		19	2,748		48	5,260
Commercial:
Commercial	3	626		3	1,627		6	2,253
Total commercial	3	626		3	1,627		6	2,253
Total	32	$	3,138	22	$	4,375	54	$	7,513

The following table presents loans that were restructured as TDRs during the nine month periods ended September 30, 2021 and 2020. There were no loans restructured as TDRs during the three month periods ended September 30, 2021 and 2020.

(Dollars in thousands)	Number of loans	Balance Prior to TDR		Balance at September 30,		Change in Maturity Date		Change in Rate		Financial Impact on Date of Restructure
Nine Months Ended Sept 30, 2021
Real estate:
Other commercial	1	$	784	$	778	$	—	$	778	$	—
Total real estate	1	$	784	$	778	$	—	$	778	$	—
Nine Months Ended Sept 30, 2020
Real estate:
Single-family residential	5	$	1,948	$	1,896	$	1,896	$	—	$	—
Total real estate	5	$	1,948	$	1,896	$	1,896	$	—	$	—

During the nine months ended September 30, 2021, the Company modified one loan with a recorded investment of $784,000 prior to modification which was deemed a TDR. The restructured loan was modified by deferring amortized principal payments and requiring interest only payments for a period of up to 12 months. A specific reserve of approximately $5,100 was recorded with respect to this TDR. Also, there was no immediate financial impact from the restructuring of this loan, as it was not considered necessary to charge-off interest or principal on the date of restructure.

During the nine months ended September 30, 2020, the Company modified five loans with a recorded investment of $1.9 million prior to modification which was deemed troubled debt restructuring. The restructured loan was modified by deferring amortized principal payments, changing the maturity date and requiring interest only payments for a period of up to 12 months. A specific

reserve of $16,600 was determined necessary for this loan. Also, there was no immediate financial impact from the restructuring of this loan, as it was not considered necessary to charge-off interest or principal on the date of restructure.

Additionally, there were no loans considered TDRs for which a payment default occurred during the nine months ended September 30, 2021. There was one commercial loan considered a TDR for which a payment default occurred during the nine months ended September 30, 2020. The Company defines a payment default as a payment received more than 90 days after its due date.

There were no TDRs with pre-modification loan balances for which Other Real Estate Owned (“OREO”) was received in full or partial satisfaction of the loans during the three and nine month periods ended September 30, 2021 or 2020. At September 30, 2021 and December 31, 2020, the Company had $2.9 million and $7.2 million, respectively, of consumer mortgage loans secured by residential real estate properties for which formal foreclosure proceedings are in process. At September 30, 2021 and December 31, 2020, the Company had $1.6 million and $3.2 million, respectively, of OREO secured by residential real estate properties.

Credit Quality Indicators – As part of the on-going monitoring of the credit quality of the Company’s loan portfolio, management tracks certain credit quality indicators including trends related to (i) the weighted-average risk rating of commercial and real estate loans, (ii) the level of classified commercial and real estate loans, (iii) net charge-offs, (iv) non-performing loans (see details above) and (v) the general economic conditions of the Company’s local markets.

The Company utilizes a risk rating matrix to assign a risk rate to each of its commercial and real estate loans. Risk ratings are updated on an ongoing basis and are subject to change by continuous loan monitoring processes including lending management monitoring, executive management and board committee oversight, and independent credit review. A description of the general characteristics of the risk ratings is as follows:

•Pass (Excellent) – This category includes loans which are virtually free of credit risk. Borrowers in this category represent the highest credit quality and greatest financial strength.

•Pass (Good) - Loans under this category possess a nominal risk of default. This category includes borrowers with strong financial strength and superior financial ratios and trends. These loans are generally fully secured by cash or equivalents (other than those rated “excellent”).

•Pass (Acceptable – Average) - Loans in this category are considered to possess a normal level of risk. Borrowers in this category have satisfactory financial strength and adequate cash flow coverage to service debt requirements. If secured, the perfected collateral should be of acceptable quality and within established borrowing parameters.

•Pass (Monitor) - Loans in the Watch (Monitor) category exhibit an overall acceptable level of risk, but that risk may be increased by certain conditions, which represent “red flags”. These “red flags” require a higher level of supervision or monitoring than the normal “Pass” rated credit. The borrower may be experiencing these conditions for the first time, or it may be recovering from weakness, which at one time justified a higher rating. These conditions may include: weaknesses in financial trends; marginal cash flow; one-time negative operating results; non-compliance with policy or borrowing agreements; poor diversity in operations; lack of adequate monitoring information or lender supervision; questionable management ability/stability.

•Special Mention - A loan in this category has potential weaknesses that deserve management’s close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the asset or in the institution’s credit position at some future date. Special Mention loans are not adversely classified (although they are “criticized”) and do not expose an institution to sufficient risk to warrant adverse classification. Borrowers may be experiencing adverse operating trends or an ill-proportioned balance sheet. Non-financial characteristics of a Special Mention rating may include management problems, pending litigation, a non-existent or ineffective loan agreement or other material structural weakness, and/or other significant deviation from prudent lending practices.

•Substandard - A Substandard loan is inadequately protected by the current sound worth and paying capacity of the borrower or of the collateral pledged, if any. Loans so classified must have a well-defined weakness, or weaknesses, that jeopardize the liquidation of the debt. The loans are characterized by the distinct possibility that the Company will sustain some loss if the deficiencies are not corrected. This does not imply ultimate loss of the principal, but may involve burdensome administrative expenses and the accompanying cost to carry the loan.

•Doubtful - A loan classified Doubtful has all the weaknesses inherent in a substandard loan except that the weaknesses make collection or liquidation in full (on the basis of currently existing facts, conditions, and values) highly questionable and improbable. Doubtful borrowers are usually in default, lack adequate liquidity or capital, and lack the resources necessary to

remain an operating entity. The possibility of loss is extremely high, but because of specific pending events that may strengthen the asset, its classification as loss is deferred. Pending factors include: proposed merger or acquisition; liquidation procedures; capital injection; perfection of liens on additional collateral; and refinancing plans. Loans classified as Doubtful are placed on nonaccrual status.

•Loss - Loans classified Loss are considered uncollectible and of such little value that their continuance as bankable assets is not warranted. This classification does not mean that the loans has absolutely no recovery or salvage value, but rather it is not practical or desirable to defer writing off this basically worthless loan, even though partial recovery may be affected in the future. Borrowers in the Loss category are often in bankruptcy, have formally suspended debt repayments, or have otherwise ceased normal business operations. Loans should be classified as Loss and charged-off in the period in which they become uncollectible.

The Company monitors credit quality in the consumer portfolio by delinquency status. The delinquency status of loans is updated daily. A description of the delinquency credit quality indicators is as follows:

•Current - Loans in this category are either current in payments or are under 30 days past due. These loans are considered to have a normal level of risk.

•30-89 Days Past Due - Loans in this category are between 30 and 89 days past due and are subject to the Company’s loss mitigation process. These loans are considered to have a moderate level of risk.

•90+ Days Past Due - Loans in this category are 90 days or more past due and are placed on nonaccrual status. These loans have been subject to the Company’s loss mitigation process and foreclosure and/or charge-off proceedings have commenced.

Effective April 2021, the Company implemented an expanded, dual risk rating scale that utilizes quantitative models and qualitative factors (“score cards”) to assist in determining the appropriate risk rating for its commercial loans. This dual risk rating methodology incorporates a “probability of default” analysis which utilizes quantified metrics such as loan terms and financial performance, as well as a “loss given default” analysis which utilizes collateral values and economics of the market, among other attributes. Model outputs are reviewed and analyzed to ensure the projected risk levels are commensurate with underwriting and credit leader expectations. The expanded risk rating scale includes Probability of Default levels of 1 – 16 and Loss Given Default levels of A – I. The expanded scale allows for more granular recognition of risk and diversification of grading among traditional Pass grades. Implementation of the expanded risk rating scale did not have a material impact on the results of the allowance for credit losses calculation.

The following table presents a summary of loans by credit quality indicator, as of September 30, 2021, segregated by class of loans.

	Term Loans Amortized Cost Basis by Origination Year
(In thousands)	2021 (YTD)		2020		2019		2018		2017		2016 and Prior		Lines of Credit (“LOC”) Amortized Cost Basis		LOC Converted to Term Loans Amortized Cost Basis		Total
Consumer - credit cards
Delinquency:
Current	—		—		—		—		—		—		174,880		—		174,880
30-89 days past due	—		—		—		—		—		—		751		—		751
90+ days past due	—		—		—		—		—		—		253		—		253
Total consumer - credit cards	—		—		—		—		—		—		175,884		—		175,884
Consumer - other
Delinquency:
Current	105,415		26,334		15,158		8,396		7,051		5,138		13,985		—		181,477
30-89 days past due	197		148		113		142		184		129		12		—		925
90+ days past due	—		14		27		9		20		19		1		—		90
Total consumer - other	105,612		26,496		15,298		8,547		7,255		5,286		13,998		—		182,492
Real estate - C&D
Risk rating:
Pass	47,644		94,278		33,487		19,254		12,848		10,030		982,776		21,429		1,221,746
Special mention	—		—		279		—		—		—		—		—		279
Substandard	1,801		83		146		57		328		674		2,673		1,953		7,715
Doubtful and loss	—		—		—		—		—		—		—		—		—
Total real estate - C&D	49,445		94,361		33,912		19,311		13,176		10,704		985,449		23,382		1,229,740
Real estate - SF residential
Delinquency:
Current	223,243		245,410		152,838		229,241		179,874		318,019		169,693		9,683		1,528,001
30-89 days past due	—		217		1,124		704		1,279		2,215		1,007		—		6,546
90+ days past due	67		380		595		1,141		1,528		1,785		586		72		6,154
Total real estate - SF residential	223,310		246,007		154,557		231,086		182,681		322,019		171,286		9,755		1,540,701
Real estate - other commercial
Risk rating:
Pass	712,198		825,416		361,642		305,381		484,230		549,452		1,410,186		217,398		4,865,903
Special mention	32,752		57,067		2,833		7,666		34,164		8,723		91,572		7,194		241,971
Substandard	33,001		25,289		6,172		9,800		33,130		22,630		50,335		20,671		201,028
Doubtful and loss	—		—		—		—		—		—		—		—		—
Total real estate - other commercial	777,951		907,772		370,647		322,847		551,524		580,805		1,552,093		245,263		5,308,902
Commercial
Risk rating:
Pass	419,739		212,161		91,328		66,078		30,687		44,298		852,103		46,186		1,762,580
Special mention	—		2,438		569		210		252		384		106		11,016		14,975
Substandard	3,726		18,934		2,016		1,512		688		978		10,048		6,448		44,350
Doubtful and loss	—		—		—		—		—		—		—		—		—
Total commercial	423,465		233,533		93,913		67,800		31,627		45,660		862,257		63,650		1,821,905
Commercial - agriculture
Risk rating:
Pass	27,000		22,841		11,726		4,599		2,688		655		144,909		1,447		215,865
Special mention	—		—		—		9		—		—		—		—		9
Substandard	192		70		99		254		68		9		99		70		861
Doubtful and loss	—		—		—		—		—		—		—		—		—
Total commercial - agriculture	27,192		22,911		11,825		4,862		2,756		664		145,008		1,517		216,735
Other
Delinquency:
Current	58		4,789		1,287		24,108		5,483		6,111		307,025		—		348,861
30-89 days past due	—		—		—		—		—		7		—		—		7
90+ days past due	—		—		—		—		—		—		—		—		—
Total other	58		4,789		1,287		24,108		5,483		6,118		307,025		—		348,868
Total	$	1,607,033	$	1,535,869	$	681,439	$	678,561	$	794,502	$	971,256	$	4,213,000	$	343,567	$	10,825,227

The following table presents a summary of loans by credit quality indicator, as of December 31, 2020, segregated by class of loans.

	Term Loans Amortized Cost Basis by Origination Year
(In thousands)	2020		2019		2018		2017		2016		2015 and Prior		Lines of Credit (“LOC”) Amortized Cost Basis		LOC Converted to Term Loans Amortized Cost Basis		Total
Consumer - credit cards
Delinquency:
Current	—		—		—		—		—		—		187,881		—		187,881
30-89 days past due	—		—		—		—		—		—		708		—		708
90+ days past due	—		—		—		—		—		—		256		—		256
Total consumer - credit cards	—		—		—		—		—		—		188,845		—		188,845
Consumer - other
Delinquency:
Current	69,334		44,215		27,525		21,995		19,023		2,530		14,684		—		199,306
30-89 days past due	234		441		327		658		689		84		338		—		2,771
90+ days past due	79		58		25		80		40		12		8		—		302
Total consumer - other	69,647		44,714		27,877		22,733		19,752		2,626		15,030		—		202,379
Real estate - C&D
Risk rating:
Pass	165,990		35,989		31,279		15,960		9,233		4,807		1,272,870		23,251		1,559,379
Special mention	2,728		344		259		2,107		19		—		9,613		—		15,070
Substandard	294		2,069		404		449		342		320		17,914		14		21,806
Doubtful and loss	—		—		—		—		—		—		—		—		—
Total real estate - C&D	169,012		38,402		31,942		18,516		9,594		5,127		1,300,397		23,265		1,596,255
Real estate - SF residential
Delinquency:
Current	473,340		209,810		297,308		235,429		183,229		236,395		196,505		10,592		1,842,608
30-89 days past due	6,300		2,258		2,593		2,610		2,058		6,050		1,781		76		23,726
90+ days past due	557		1,853		2,735		2,582		832		3,852		1,928		—		14,339
Total real estate - SF residential	480,197		213,921		302,636		240,621		186,119		246,297		200,214		10,668		1,880,673
Real estate - other commercial
Risk rating:
Pass	1,563,245		525,750		375,303		518,534		372,679		284,098		1,445,428		181,949		5,266,986
Special mention	100,085		4,346		10,738		19,943		26,245		10,608		63,305		23,435		258,705
Substandard	66,737		9,418		24,380		14,067		3,744		11,158		52,182		39,486		221,172
Doubtful and loss	—		—		—		—		—		—		—		—		—
Total real estate - other commercial	1,730,067		539,514		410,421		552,544		402,668		305,864		1,560,915		244,870		5,746,863
Commercial
Risk rating:
Pass	1,168,085		154,740		110,383		65,757		35,198		45,568		803,751		56,648		2,440,130
Special mention	5,707		342		465		972		54		—		12,318		22,546		42,404
Substandard	23,227		4,495		1,586		730		276		334		53,682		7,522		91,852
Doubtful and loss	—		—		—		—		—		—		—		—		—
Total commercial	1,197,019		159,577		112,434		67,459		35,528		45,902		869,751		86,716		2,574,386
Commercial - agriculture
Risk rating:
Pass	36,128		19,144		10,014		4,671		1,916		340		101,238		1,560		175,011
Special mention	—		79		13		299		—		6		34		—		431
Substandard	86		101		64		47		12		10		68		75		463
Doubtful and loss	—		—		—		—		—		—		—		—		—
Total commercial - agriculture	36,214		19,324		10,091		5,017		1,928		356		101,340		1,635		175,905
Other
Delinquency:
Current	125		4,260		27,256		6,489		2,628		6,065		488,676		—		535,499
30-89 days past due	59		—		—		—		33		—		—		—		92
90+ days past due	—		—		—		—		—		—		—		—		—
Total other	184		4,260		27,256		6,489		2,661		6,065		488,676		—		535,591
Total	$	3,682,340	$	1,019,712	$	922,657	$	913,379	$	658,250	$	612,237	$	4,725,168	$	367,154	$	12,900,897

Allowance for Credit Losses

Allowance for Credit Losses – The allowance for credit losses is a reserve established through a provision for credit losses charged to expense, which represents management’s best estimate of lifetime expected losses based on reasonable and supportable forecasts, historical loss experience, and other qualitative considerations. The allowance, in the judgment of management, is necessary to reserve for expected loan losses and risks inherent in the loan portfolio. The Company’s allowance for credit loss methodology includes reserve factors calculated to estimate current expected credit losses to amortized cost balances over the remaining contractual life of the portfolio, adjusted for the effective interest rate used to discount prepayments, in accordance with ASC Topic 326-20, Financial Instruments - Credit Losses. Accordingly, the methodology is based on the Company’s reasonable and supportable economic forecasts, historical loss experience, and other qualitative adjustments.

Loans with similar risk characteristics such as loan type, collateral type, and internal risk ratings are aggregated into homogeneous segments for assessment. Reserve factors are based on estimated probability of default and loss given default for each segment. The estimates are determined based on economic forecasts over the reasonable and supportable forecast period based on projected performance of economic variables that have a statistical relationship with the historical loss experience of the segments. For contractual periods that extend beyond the one-year forecast period, the estimates revert to average historical loss experiences over a one-year period on a straight-line basis.

The Company also includes qualitative adjustments to the allowance based on factors and considerations that have not otherwise been fully accounted for. Qualitative adjustments include, but are not limited to:

•Changes in asset quality - Adjustments related to trending credit quality metrics including delinquency, non-performing loans, charge-offs, and risk ratings that may not be fully accounted for in the reserve factor.

•Changes in the nature and volume of the portfolio - Adjustments related to current changes in the loan portfolio that are not fully represented or accounted for in the reserve factors.

•Changes in lending and loan monitoring policies and procedures - Adjustments related to current changes in lending and loan monitoring procedures as well as review of specific internal policy compliance metrics.

•Changes in the experience, ability, and depth of lending management and other relevant staff - Adjustments to measure increasing or decreasing credit risk related to lending and loan monitoring management.

•Changes in the value of underlying collateral of collateralized loans - Adjustments related to improving or deterioration of the value of underlying collateral that are not fully captured in the reserve factors.

•Changes in and the existence and effect of any concentrations of credit - Adjustments related to credit risk of specific industries that are not fully captured in the reserve factors.

•Changes in regional and local economic and business conditions and developments - Adjustments related to expected and current economic conditions at a regional or local-level that are not fully captured within the Company’s reasonable and supportable forecast.

•Data imprecisions due to limited historical loss data - Adjustments related to limited historical loss data that is representative of the collective loan portfolio.

Loans that do not share similar risk characteristics are evaluated on an individual basis. These evaluations are typically performed on loans with a deteriorated internal risk rating or are classified as a troubled debt restructuring. The allowance for credit loss is determined based on several methods including estimating the fair value of the underlying collateral or the present value of expected cash flows.

For a collateral dependent loan, the Company’s evaluation process includes a valuation by appraisal or other collateral analysis adjusted for selling costs, when appropriate. This valuation is compared to the remaining outstanding principal balance of the loan. If a loss is determined to be probable, the loss is included in the allowance for credit losses as a specific allocation. If the loan is not collateral dependent, the measurement of loss is based on the difference between the expected and contractual future cash flows of the loan.

Loans for which the repayment is expected to be provided substantially through the operation or sale of collateral and where the borrower is experiencing financial difficulty had an amortized cost of $42.1 million as of September 30, 2021, as further detailed in the table below. The collateral securing these loans consist of commercial real estate properties, residential properties, other business assets, and secured energy production assets.

(In thousands)	Real Estate Collateral		Energy		Other Collateral		Total
Construction and development	$	4,181	$	—	$	—	$	4,181
Single family residential	2,921		—		—		2,921
Other commercial real estate	31,672		—		—		31,672
Commercial	—		—		3,317		3,317
Total	$	38,774	$	—	$	3,317	$	42,091

The following table details activity in the allowance for credit losses by portfolio segment for the three and nine months ended September 30, 2021. Allocation of a portion of the allowance to one category of loans does not preclude its availability to absorb losses in other categories. 

(In thousands)	Commercial		Real Estate		Credit Card		Other Consumer and Other		Total
Allowance for credit losses:
Three Months Ended September 30, 2021
Beginning balance, July 1, 2021	$	29,793	$	188,388	$	5,442	$	3,616	$	227,239
Provision for credit loss expense	(11,853)		(7,668)		(247)		(122)		(19,890)
Charge-offs	(932)		(5,941)		(711)		(463)		(8,047)
Recoveries	463		2,068		267		408		3,206
Net charge-offs	(469)		(3,873)		(444)		(55)		(4,841)
Ending balance, September 30, 2021	$	17,471	$	176,847	$	4,751	$	3,439	$	202,508
Nine Months Ended September 30, 2021
Beginning balance, January 1, 2021	$	42,093	$	182,868	$	7,472	$	5,617	$	238,050
Provision for credit loss expense	(25,453)		(1,948)		(763)		(1,737)		(29,901)
Charge-offs	(2,099)		(8,068)		(2,759)		(1,577)		(14,503)
Recoveries	2,930		3,995		801		1,136		8,862
Net charge-offs	831		(4,073)		(1,958)		(441)		(5,641)
Ending balance, September 30, 2021	$	17,471	$	176,847	$	4,751	$	3,439	$	202,508

Activity in the allowance for credit losses for the three and nine months ended September 30, 2020 was as follows:

(In thousands)	Commercial		Real Estate		Credit Card		Other Consumer and Other		Total
Allowance for credit losses:
Three Months Ended September 30, 2020
Beginning balance, July 1, 2020	$	59,138	$	149,471	$	10,979	$	12,055	$	231,643
Provision for credit losses	(6,499)		33,479		(1,823)		(2,844)		22,313
Charge-offs	(4,327)		(1,153)		(832)		(1,091)		(7,403)
Recoveries	936		120		276		366		1,698
Net (charge-offs) recoveries	(3,391)		(1,033)		(556)		(725)		(5,705)
Ending balance, September 30, 2020	$	49,248	$	181,917	$	8,600	$	8,486	$	248,251

Nine Months Ended September 30, 2020
Beginning balance, January 1, 2020 - prior to adoption of CECL	$	22,863	$	39,161	$	4,051	$	2,169	$	68,244
Impact of CECL adoption	22,733		114,314		2,232		12,098		151,377
Provision for credit loss expense	42,808		31,341		4,870		(3,829)		75,190
Charge-offs	(40,537)		(3,373)		(3,326)		(3,062)		(50,298)
Recoveries	1,381		474		773		1,110		3,738
Net charge-offs	(39,156)		(2,899)		(2,553)		(1,952)		(46,560)
Ending balance, September 30, 2020	$	49,248	$	181,917	$	8,600	$	8,486	$	248,251

As of September 30, 2021, the Company’s allowance for credit losses was considered sufficient based upon expected loan level cash flows that were supported by economic forecasts. Provision expense was recaptured for the three and nine months ended September 30, 2021 based upon improved asset credit quality metrics combined with improved Moody’s economic modeling scenarios.

The provision for credit losses for the nine months ended September 30, 2020 was primarily related to concern over the economic stresses related to COVID-19 as well as specific provisions for two energy credits that were previously identified as problem loans that were impacted by the sharp decline in commodity pricing. Four energy credits within the Commercial segment were charged off during the second quarter of 2020 for a total of $32.6 million.

Reserve for Unfunded Commitments

In addition to the allowance for credit losses, the Company has established a reserve for unfunded commitments, classified in other liabilities. This reserve is maintained at a level management believes to be sufficient to absorb losses arising from unfunded loan commitments. The reserve for unfunded commitments as of September 30, 2021 and December 31, 2020 was $22.4 million. The adequacy of the reserve for unfunded commitments is determined quarterly based on methodology similar to the methodology for determining the allowance for credit losses. No adjustment was made to the reserve for unfunded commitments during the three and nine months ended September 30, 2021 as it was considered sufficient to cover any loss expectations. For the nine month period ended September 30, 2020, net adjustments to the reserve for unfunded commitments resulted in a benefit $8.0 million and was included in the provision for credit losses in the statement of income.

Provision for Credit Losses

Provision for credit losses is determined by the Company as the amount to be added to the allowance for credit loss accounts for various types of financial instruments including loans, securities and off-balance-sheet credit exposure after net charge-offs have been deducted to bring the allowance to a level which, in management’s best estimate, is necessary to absorb expected credit losses over the lives of the respective financial instruments.

The components of the provision for credit losses for the three and nine month periods ended September 30, 2021 and 2020 were as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands)	2021		2020		2021		2020
Provision for credit losses related to:
Loans	$	(19,890)	$	22,313	$	(29,901)	$	75,190
Unfunded commitments	—		—		—		(8,000)
Securities - HTM	—		66		(1,183)		4
Securities - AFS	—		602		(312)		836
Total	$	(19,890)	$	22,981	$	(31,396)	$	68,030

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Right-Of-Use Lease Assets and Lease Liabilities

9 Months Ended

Sep. 30, 2021

Leases [Abstract]

Right-Of-Use Lease Assets and Lease Liabilities

RIGHT-OF-USE LEASE ASSETS AND LEASE LIABILITIES

The Company accounts for its leases in accordance with ASC Topic 842, Leases, which requires recognition of most leases, including operating leases, with a term greater than 12 months on the balance sheet. At lease commencement, the lease contract is reviewed to determine whether the contract is a finance lease or an operating lease; a lease liability is recognized on a discounted basis, related to the Company’s obligation to make lease payments; and a right-of-use asset is also recognized related to the Company’s right to use, or control the use of, a specified asset for the lease term. The Company accounts for lease and non-lease components (such as taxes, insurance and common area maintenance costs) separately as such amounts are generally readily determinable under the lease contracts. Lease payments over the expected term are discounted using the Company’s Federal Home Loan Bank (“FHLB”) advance rates for borrowings of similar term. If it is reasonably certain that a renewal or termination option will be exercised, the effects of such options are included in the determination of the expected lease term. Leases with an initial term of 12 months or less are not recorded on the balance sheet; the Company recognizes lease expense for these leases on a straight-line basis over the lease term.

The Company’s leases are classified as operating leases with a term, including expected renewal or termination options, greater than one year, and are related to certain office facilities and office equipment. The following table presents information as of September 30, 2021 and December 31, 2020 related to the Company’s right-of-use lease assets, included in premises and equipment, and lease liabilities, included in accrued interest and other liabilities.

	September 30,			December 31,
(Dollars in thousands)	2021			2020
Right-of-use lease assets	$	40,700		$	31,348
Lease liabilities	41,110			31,433
Weighted average remaining lease term	8.52 years			6.55 years
Weighted average discount rate	2.43		%	3.09		%

Operating lease cost for the three and nine month periods ended September 30, 2021 was $2.8 million and $8.5 million, respectively, as compared to $3.5 million and $10.1 million for the same periods in 2020.

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Premises and Equipment

9 Months Ended

Sep. 30, 2021

Property, Plant and Equipment [Abstract]

Premises and Equipment

PREMISES AND EQUIPMENT

Premises and equipment are stated at cost less accumulated depreciation and amortization. Total premises and equipment, net at September 30, 2021 and December 31, 2020 were as follows:

	September 30,		December 31,
(In thousands)	2021		2020
Right-of-use lease assets	$	40,700	$	31,348
Premises and equipment:
Land	99,317		90,953
Buildings and improvements	313,884		293,338
Furniture, fixtures and equipment	103,946		100,863
Software	65,855		64,877
Construction in progress	3,950		763
Accumulated depreciation and amortization	(163,728)		(140,450)
Total premises and equipment, net	$	463,924	$	441,692

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Goodwill and Other Intangible Assets

9 Months Ended

Sep. 30, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Other Intangible Assets

GOODWILL AND OTHER INTANGIBLE ASSETS

Goodwill is tested annually, or more often than annually, if circumstances warrant, for impairment. If the implied fair value of goodwill is lower than its carrying amount, goodwill impairment is indicated, and goodwill is written down to its implied fair value. Subsequent increases in goodwill value are not recognized in the financial statements. Goodwill totaled $1.1 billion at September 30, 2021 and December 31, 2020.

Goodwill impairment was neither indicated nor recorded during the nine months ended September 30, 2021 or the year ended December 31, 2020. During the first quarter of 2020, the Company’s share price began to decline as the markets in the United States responded to the global COVID-19 pandemic. As a result of that economic decline, the effect on share price and other factors, the Company performed an interim goodwill impairment assessment during each quarter of 2020 and concluded no impairment existed during each period. While the goodwill impairment analyses indicated no impairment during 2020, the Company’s assessment depended on several assumptions which were dependent on market and economic conditions, and future changes in those conditions could impact the Company’s assessment in the future. The Company will complete an interim goodwill impairment analysis if the stock price falls below the book value per share for a full quarter. Due to the improved market and economic conditions, and the related effects on the Company’s share price, the Company did not perform an interim goodwill impairment assessment during the first or third quarter of 2021. During the second quarter of 2021, the Company performed an annual goodwill impairment analysis and concluded no impairment existed.

Core deposit premiums represent the value of the relationships that acquired banks had with their deposit customers and are amortized over periods ranging from 10 years to 15 years and are periodically evaluated, at least annually, as to the recoverability of their carrying value. Other intangible assets represent the value of other acquired relationships, including relationships with trust and wealth management customers, and are being amortized over various periods ranging from 10 years to 15 years.

Changes in the carrying amount and accumulated amortization of the Company’s core deposit premiums and other intangible assets at September 30, 2021 and December 31, 2020 were as follows: 

	September 30,		December 31,
(In thousands)	2021		2020
Core deposit premiums:
Balance, beginning of year	$	97,363	$	111,808
Disposition of intangible asset(1)	(674)		(2,324)
Amortization	(8,978)		(12,121)
Balance, end of period	87,711		97,363
Books of business and other intangibles:
Balance, beginning of year	13,747		15,532
Disposition of intangible asset	—		(413)
Amortization	(1,030)		(1,372)
Balance, end of period	12,717		13,747
Total other intangible assets, net	$	100,428	$	111,110

_________________________

(1)    Adjustments recorded for the premiums on certain deposit liabilities associated with the sale of banking operations.

The carrying basis and accumulated amortization of the Company’s other intangible assets at September 30, 2021 and December 31, 2020 were as follows: 

	September 30,		December 31,
(In thousands)	2021		2020
Core deposit premiums:
Gross carrying amount	$	144,202	$	146,355
Accumulated amortization	(56,491)		(48,992)
Core deposit premiums, net	87,711		97,363
Books of business and other intangibles:
Gross carrying amount	19,937		19,937
Accumulated amortization	(7,220)		(6,190)
Books of business and other intangibles, net	12,717		13,747
Total other intangible assets, net	$	100,428	$	111,110

The Company’s estimated remaining amortization expense on other intangible assets as of September 30, 2021 is as follows:

(In thousands)	Year	Amortization Expense
	Remainder of 2021	$	3,332
	2022	13,275
	2023	12,992
	2024	12,090
	2025	9,505
	Thereafter	49,234
	Total	$	100,428

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Time Deposits

9 Months Ended

Sep. 30, 2021

Banking and Thrift, Other Disclosures [Abstract]

Time Deposits

TIME DEPOSITS

Time deposits included approximately $1.76 billion and $2.03 billion of certificates of deposit of $100,000 or more, at September 30, 2021, and December 31, 2020, respectively. Of this total, approximately $819.1 million and $889.8 million of certificates of deposit were over $250,000 at September 30, 2021 and December 31, 2020, respectively.

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Income Taxes

9 Months Ended

Sep. 30, 2021

Income Tax Disclosure [Abstract]

Income Taxes

INCOME TAXES

The provision for income taxes is comprised of the following components for the periods indicated below:

	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands)	2021		2020		2021		2020
Income taxes currently payable	$	21,500	$	19,329	$	46,566	$	51,000
Deferred income taxes	(2,730)		(1,696)		3,585		2,920
Provision for income taxes	$	18,770	$	17,633	$	50,151	$	53,920

The tax effects of temporary differences between the tax basis of assets and liabilities and their financial reporting amounts that give rise to deferred income tax assets and liabilities, and their approximate tax effects, are as follows: 

	September 30,		December 31,
(In thousands)	2021		2020
Deferred tax assets:
Loans acquired	$	5,882	$	10,100
Allowance for credit losses	47,652		58,028
Valuation of foreclosed assets	1,631		1,673
Tax NOLs from acquisition	13,698		16,028
Deferred compensation payable	3,342		3,060
Accrued equity and other compensation	6,091		5,905
Acquired securities	431		587
Right-of-use lease liability	9,992		7,835
Unrealized loss on AFS securities	3,631		—
Allowance for unfunded commitments	5,444		5,583
Other	8,255		7,600
Gross deferred tax assets	106,049		116,399
Deferred tax liabilities:
Goodwill and other intangible amortization	(36,584)		(38,882)
Accumulated depreciation	(24,510)		(34,667)
Right-of-use lease asset	(9,893)		(7,813)
Unrealized gain on AFS securities	—		(17,521)
Other	(4,001)		(4,021)
Gross deferred tax liabilities	(74,988)		(102,904)
Net deferred tax asset	$	31,061	$	13,495

A reconciliation of income tax expense at the statutory rate to the Company’s actual income tax expense is shown for the periods indicated below:

	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands)	2021		2020		2021		2020
Computed at the statutory rate (21%)	$	20,859	$	17,539	$	57,336	$	53,719
Increase (decrease) in taxes resulting from:
State income taxes, net of federal tax benefit	1,477		1,143		4,855		5,502
Stock-based compensation	(22)		74		15		143
Tax exempt interest income	(2,973)		(1,752)		(8,224)		(4,594)
Tax exempt earnings on BOLI	(435)		(308)		(995)		(839)
Federal tax credits	(491)		(434)		(1,670)		(1,252)
Other differences, net	355		1,371		(1,166)		1,241
Actual tax provision	$	18,770	$	17,633	$	50,151	$	53,920

The Company follows ASC Topic 740, Income Taxes, which prescribes a recognition threshold and a measurement attribute for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. Benefits from tax positions should be recognized in the financial statements only when it is more likely than not that the tax position will be sustained upon examination by the appropriate taxing authority that would have full knowledge of all relevant information. A tax position that meets the more-likely-than-not recognition threshold is measured at the largest amount of benefit that is greater than fifty percent likely of being realized upon ultimate settlement. Tax positions that previously failed to meet the more-likely-than-not recognition threshold should be recognized in the first subsequent financial reporting period in which that threshold is met. Previously recognized tax positions that no longer meet the more-likely-than-not recognition threshold should be derecognized in the first subsequent financial reporting period in which that threshold is no longer met. ASC Topic 740 also provides guidance on the accounting for and disclosure of unrecognized tax benefits, interest and penalties. The Company has no history of expiring net operating loss carryforwards and is projecting significant pre-tax and financial taxable income in future years. The Company expects to fully realize its deferred tax assets in the future.

The amount of unrecognized tax benefits may increase or decrease in the future for various reasons including adding amounts for current tax year positions, expiration of open income tax returns due to the statutes of limitation, changes in management’s judgment about the level of uncertainty, status of examinations, litigation and legislative activity and the addition or elimination of uncertain tax positions.

Section 382 of the Internal Revenue Code imposes an annual limit on the ability of a corporation that undergoes an “ownership change” to use its U.S. net operating losses to reduce its tax liability. The Company has engaged in two tax-free reorganization transactions in which acquired net operating losses are limited pursuant to Section 382. In total, approximately $62.1 million of federal net operating losses subject to the IRC Section 382 annual limitation are expected to be utilized by the Company. All of the acquired net operating loss carryforwards are expected to be fully utilized by 2036.

The Company files income tax returns in the U.S. federal jurisdiction. The Company’s U.S. federal income tax returns are open and subject to examinations from the 2017 tax year and forward. The Company’s various state income tax returns are generally open from the 2017 and later tax return years based on individual state statute of limitations.

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Securities Sold Under Agreements to Repurchase

9 Months Ended

Sep. 30, 2021

Disclosure of Repurchase Agreements [Abstract]

Securities Sold Under Agreements to Repurchase

SECURITIES SOLD UNDER AGREEMENTS TO REPURCHASE

The Company utilizes securities sold under agreements to repurchase to facilitate the needs of its customers and to facilitate secured short-term funding needs. Securities sold under agreements to repurchase are stated at the amount of cash received in connection with the transaction. The Company monitors collateral levels on a continuous basis. The Company may be required to provide additional collateral based on the fair value of the underlying securities. Securities pledged as collateral under repurchase agreements are maintained with the Company’s safekeeping agents.

The gross amount of recognized liabilities for repurchase agreements was $202.3 million and $248.9 million at September 30, 2021 and December 31, 2020, respectively. The remaining contractual maturity of the securities sold under agreements to repurchase in the consolidated balance sheets as of September 30, 2021 and December 31, 2020 is presented in the following tables.

	Remaining Contractual Maturity of the Agreements
(In thousands)	Overnight and Continuous		Up to 30 Days		30-90 Days		Greater than 90 Days		Total
September 30, 2021
Repurchase agreements:
U.S. Government agencies	$	202,276	$	—	$	—	$	—	$	202,276
December 31, 2020
Repurchase agreements:
U.S. Government agencies	$	248,861	$	—	$	—	$	—	$	248,861

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Other Borrowings and Subordinated Notes and Debentures

9 Months Ended

Sep. 30, 2021

Debt Disclosure [Abstract]

Other Borrowings and Subordinated Notes and Debentures

OTHER BORROWINGS AND SUBORDINATED NOTES AND DEBENTURES

Debt at September 30, 2021 and December 31, 2020 consisted of the following components: 

	September 30,		December 31,
(In thousands)	2021		2020
Other Borrowings
FHLB advances, net of discount, due 2022 to 2035, 0.23% to 7.37% secured by real estate loans	$	1,306,360	$	1,308,674
Other long-term debt	32,225		33,393
Total other borrowings	1,338,585		1,342,067
Subordinated Notes and Debentures
Subordinated notes payable, due 4/1/2028, fixed-to-floating rate (fixed rate of 5.00% through 3/31/2023, floating rate of 2.15% above the three month LIBOR rate, reset quarterly)	330,000		330,000
Trust preferred securities, due 9/15/2037, floating rate of 1.37% above the three month LIBOR rate, reset quarterly	10,310		10,310
Trust preferred securities, due 6/6/2037, floating rate of 1.57% above the three month LIBOR rate, reset quarterly, callable without penalty	10,310		10,310
Trust preferred securities, due 12/15/2035, floating rate of 1.45% above the three month LIBOR rate, reset quarterly, callable without penalty	6,702		6,702
Trust preferred securities, net of discount, due 6/15/2037, floating rate of 1.85% above the three month LIBOR rate, reset quarterly, callable without penalty	25,290		25,172
Trust preferred securities, net of discount, due 12/15/2036, floating rate of 1.85% above the three month LIBOR rate, reset quarterly, callable without penalty	3,036		3,023
Unamortized debt issuance costs	(2,370)		(2,643)
Total subordinated notes and debentures	383,278		382,874
Total other borrowings and subordinated debt	$	1,721,863	$	1,724,941

In March 2018, the Company issued $330.0 million in aggregate principal amount, of 5.00% Fixed-to-Floating Rate Subordinated Notes (“Notes”) at a public offering price equal to 100% of the aggregate principal amount of the Notes. The Company incurred $3.6 million in debt issuance costs related to the offering during March 2018. The Notes will mature on April 1, 2028 and will bear interest at an initial fixed rate of 5.00% per annum, payable semi-annually in arrears. From and including April 1, 2023 to, but excluding, the maturity date or the date of earlier redemption, the interest rate will reset quarterly to an annual interest rate equal to the then-current three month LIBOR rate plus 215 basis points, payable quarterly in arrears. The Notes will be subordinated in right of payment to the payment of the Company’s other existing and future senior indebtedness, including all of its general creditors. The Notes are obligations of the Company only and are not obligations of, and are not guaranteed by, any of its subsidiaries. The Company used a portion of the net proceeds from the sale of the Notes to repay certain outstanding indebtedness. The Notes qualify for Tier 2 capital treatment.

The terms of the Company’s Notes and trust preferred securities utilize the three month LIBOR rate to determine the interest rate and expense due each quarter. The Company is currently reviewing all applicable documents and working with the debt holders and all relevant parties to determine the alternate interest rate index to be utilized, or other impacts, when LIBOR is discontinued.

The Company had total FHLB advances of $1.31 billion at September 30, 2021, of which $1.30 billion are FHLB Owns the Option (“FOTO”) advances. FOTO advances are a low cost, fixed-rate source of funding in return for granting to FHLB the flexibility to choose a termination date earlier than the maturity date. Typically, FOTO exercise dates follow a specified lockout period at the beginning of the term when FHLB cannot terminate the FOTO advance. If FHLB exercises its option to terminate the FOTO advance at one of the specified option exercise dates, there is no termination or prepayment fee, and replacement funding will be available at then-prevailing market rates, subject to FHLB’s credit and collateral requirements. The Company’s FOTO advances outstanding at September 30, 2021 have original maturity dates of ten years to fifteen years with lockout periods that have expired. The Company expects the FHLB’s option to terminate the FOTO advances prior to stated maturity dates will not be exercised due to the current low interest rate environment. The possibility of the FHLB exercising the options is continually analyzed by the Company along with the market expected rate outcome. At September 30, 2021, the FHLB advances outstanding were secured by mortgage loans and investment securities totaling approximately $4.4 billion and the Company had approximately $3.0 billion of additional advances available from the FHLB.

The trust preferred securities are tax-advantaged issues that qualify for inclusion as Tier 2 capital at September 30, 2021. Distributions on these securities are included in interest expense on long-term debt. Each of the trusts is a statutory business trust organized for the sole purpose of issuing trust securities and investing the proceeds thereof in junior subordinated debentures of the Company, the sole asset of each trust. The preferred securities of each trust represent preferred beneficial interests in the assets of the respective trusts and are subject to mandatory redemption upon payment of the junior subordinated debentures held by the trust. The common securities of each trust are wholly-owned by the Company. Each trust’s ability to pay amounts due on the trust preferred securities is solely dependent upon the Company making payments on the related junior subordinated debentures. The Company’s obligations under the junior subordinated securities and other relevant trust agreements, in the aggregate, constitute a full and unconditional guarantee by the Company of each respective trust’s obligations under the trust securities issued by each respective trust.

The Company’s long-term debt primarily includes subordinated debt and long-term FHLB advances with an original maturity of greater than one year. Aggregate annual maturities of long-term debt at September 30, 2021, are as follows: 

Year	(In thousands)
Remainder of 2021	$	451
2022	1,727
2023	1,686
2024	2,327
2025	4,876
Thereafter	1,710,796
Total	$	1,721,863

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Contingent Liabilities

9 Months Ended

Sep. 30, 2021

Commitments and Contingencies Disclosure [Abstract]

Contingent Liabilities

CONTINGENT LIABILITIES

In the ordinary course of its operations, the Company and its subsidiaries are parties to various legal proceedings incidental to the conduct of our business, including proceedings based on breach of contract claims, lender liability claims, and other ordinary-course claims, some of which seek substantial relief or damages.

On May 22, 2019, Danny Walkingstick and Whitnye Fort filed a putative class action complaint against Simmons Bank in the United States District Court for the Western District of Missouri. The operative complaint alleges that Simmons Bank improperly charges overdraft fees on transactions that did not actually overdraw customers’ accounts by utilizing the checking account’s “available balance” to assess overdraft fees instead of the “ledger balance.” Plaintiffs’ claims include breach of contract and unjust enrichment, and they seek to represent a proposed class of all Simmons Bank checking account customers who were assessed an overdraft fee on a transaction that purportedly did not overdraw the account. Plaintiffs seek unspecified damages, costs, attorneys’ fees, pre- and post-judgment interest, and other relief as the Court deems proper for themselves and the putative class. Simmons Bank denies the allegations but has reached a settlement in principle with the plaintiffs to resolve this matter, subject to the preparation and execution of a mutually acceptable settlement agreement and release, as well as the court’s approval. The settlement is not expected to have a material adverse effect on the Company’s business, consolidated results of operations, financial condition, or cash flows.

On January 14, 2020, Susanne Pace filed a putative class action complaint in the Circuit Court of Boone County, Missouri against Landmark Bank, formerly a wholly-owned subsidiary of The Landrum Company, to which Simmons Bank is a successor by merger in connection with the Company’s acquisition of The Landrum Company, which closed in October 2019. The complaint alleges that Landmark Bank improperly charged overdraft fees where a transaction was initially authorized on sufficient funds but later settled negative due to intervening transactions. The complaint asserts a claim for breach of contract, which incorporates the implied duty of good faith and fair dealing. Plaintiff seeks to represent a proposed class of all Landmark Bank checking account customers from Missouri who were allegedly charged overdraft fees on transactions that did not overdraw their checking account. Plaintiff seeks unspecified actual, statutory, and punitive damages as well as costs, attorneys’ fees, prejudgment interest, an injunction, and other relief as the Court deems proper for herself and the putative class. Simmons Bank denies the allegations but has reached a settlement in principle with the plaintiff to resolve this matter, subject to the preparation and execution of a mutually acceptable settlement agreement and release, as well as the court’s approval. The settlement is not expected to have a material adverse effect on the Company’s business, consolidated results of operations, financial condition, or cash flows.

On June 29, 2020, Shunda Wilkins, Diann Graham, and David Watson filed a putative class action complaint against Simmons Bank in the United States District Court for the Eastern District of Arkansas. The complaint alleges that Simmons Bank improperly charges multiple insufficient funds or overdraft fees when a merchant resubmits a rejected payment request. The complaint asserts claims for breach of contract and unjust enrichment. Plaintiffs seek to represent a proposed class of all Simmons Bank checking account customers who were charged multiple insufficient funds or overdraft fees on resubmitted payment requests. Plaintiffs seek unspecified damages, costs, attorney’s fees, pre-judgment interest, an injunction, and other relief as the Court deems proper for themselves and the purported class. Simmons Bank denies the allegations and is vigorously defending the matter.

On May 13, 2021, Susanne Pace filed a second putative class action complaint in the circuit court of Boone County, Missouri against Landmark Bank, to which Simmons Bank is a successor by merger, which has been removed to the United States District Court for the Western District of Missouri, Central Division. The complaint alleges that Landmark Bank improperly charged multiple insufficient funds or overdraft fees when a merchant or other originator resubmits a rejected payment request. The complaint asserts claims for breach of contract, including breach of the covenant of good faith and fair dealing. Plaintiff seeks to represent a proposed class of all Landmark Bank checking account customers who were charged multiple insufficient funds or overdraft fees on resubmitted payment requests. Plaintiff seeks unspecified damages, costs, attorney’s fees, pre- and post-judgment interest, an injunction, and other relief as the Court deems proper for herself and the purported class. Simmons Bank denies the allegations and is vigorously defending the matter.

We establish reserves for legal proceedings when potential losses become probable and can be reasonably estimated. While the ultimate resolution (including amounts thereof) of any legal proceedings, including the matters described above, cannot be determined at this time, based on information presently available and after consultation with legal counsel, management believes that the ultimate outcome in such proceedings, either individually or in the aggregate, will not have a material adverse effect on our business, consolidated results of operations, financial condition, or cash flows. It is possible, however, that future developments could result in an unfavorable outcome for or resolution of any of these proceedings, which may be material to our results of operations for a given fiscal period.

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Capital Stock

9 Months Ended

Sep. 30, 2021

Equity [Abstract]

Capital Stock

CAPITAL STOCK

On February 27, 2009, at a special meeting, the Company’s shareholders approved an amendment to the Articles of Incorporation to establish 40,040,000 authorized shares of preferred stock, $0.01 par value. The aggregate liquidation preference of all shares of preferred stock cannot exceed $80,000,000.

On October 29, 2019, the Company filed Amended and Restated Articles of Incorporation (“October Amended Articles”) with the Arkansas Secretary of State. The October Amended Articles classified and designated Series D Preferred Stock, Par Value $0.01 Per Share, out of the Company’s authorized preferred stock.

Effective July 23, 2021, the Company’s Board of Directors approved an amendment to the Company’s current stock repurchase program (“Program”) that increases the amount of the Company’s common stock that may be repurchased under the Program from a maximum of $180 million to a maximum of $276.5 million and extends the term of the Program from October 31, 2021, to October 31, 2022 (unless terminated sooner). The Program was originally approved on October 17, 2019 and first amended in March 2020; and as of September 30, 2021, the Company has repurchased approximately $178.0 million of its common stock under the Program.

Under the Program, the Company may repurchase shares of its common stock through open market and privately negotiated transactions or otherwise. The timing, pricing, and amount of any repurchases under the Program will be determined by the Company’s management at its discretion based on a variety of factors, including, but not limited to, trading volume and market price of the Company’s common stock, corporate considerations, the Company’s working capital and investment requirements, general market and economic conditions, and legal requirements. The Program does not obligate the Company to repurchase any common stock and may be modified, discontinued, or suspended at any time without prior notice. The Company anticipates funding for this Program to come from available sources of liquidity, including cash on hand and future cash flow.

During the three and nine month periods ended September 30, 2021, the Company repurchased 1,806,205 shares at an average price of $28.48 per share and 1,937,121 shares at an average price of $28.14 per share, respectively, under the Program. Market conditions and the Company’s capital needs will drive decisions regarding additional, future stock repurchases. The Company repurchased 4,922,336 shares at an average price of $18.96 per share under the Program during the nine months ended September 30, 2020. No shares were repurchased during the three months ended September 30, 2020.

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Undivided Profits

9 Months Ended

Sep. 30, 2021

Equity [Abstract]

Undivided Profits

UNDIVIDED PROFITS

Simmons Bank, the Company’s subsidiary bank, is subject to legal limitations on dividends that can be paid to the parent company without prior approval of the applicable regulatory agencies. The approval of the Commissioner of the Arkansas State Bank Department is required if the total of all dividends declared by an Arkansas state bank in any calendar year exceeds seventy-five percent (75%) of the total of its net profits, as defined, for that year combined with seventy-five percent (75%) of its retained net profits of the preceding year. At September 30, 2021, Simmons Bank had approximately $47.0 million available for payment of dividends to the Company, without prior regulatory approval.

The risk-based capital guidelines of the Federal Reserve Board and the Arkansas State Bank Department include the definitions for (1) a well-capitalized institution, (2) an adequately-capitalized institution, and (3) an undercapitalized institution. The criteria for a well-capitalized institution are: a 5% “Tier l leverage capital” ratio, an 8% “Tier 1 risk-based capital” ratio, 10% “total risk-based capital” ratio; and a 6.5% “common equity Tier 1 (CET1)” ratio.

The Company and Simmons Bank, must hold a capital conservation buffer of 2.5% composed of CET1 capital above its minimum risk-based capital requirements. Failure to meet this capital conservation buffer would result in additional limits on dividends, other distributions and discretionary bonuses. As of September 30, 2021, the Company and Simmons Bank met all capital adequacy requirements, including the capital conservation buffer, under the Basel III Capital Rules. The Company’s CET1 ratio was 14.27% at September 30, 2021.

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Stock-Based Compensation

9 Months Ended

Sep. 30, 2021

Share-based Payment Arrangement [Abstract]

Stock-Based Compensation

STOCK-BASED COMPENSATION

The Company’s Board of Directors has adopted various stock-based compensation plans. The plans provide for the grant of incentive stock options, nonqualified stock options, stock appreciation rights, restricted stock awards, restricted stock units and performance stock units. Pursuant to the plans, shares are reserved for future issuance by the Company upon exercise of stock options or awards of restricted stock, restricted stock units, or performance stock units granted to directors, officers and other key employees.

The table below summarizes the transactions under the Company’s active stock-based compensation plans for the nine months ended September 30, 2021: 

	Stock Options Outstanding			Non-vested Stock Awards Outstanding			Non-vested Stock Units Outstanding
(Shares in thousands)	Number of Shares	Weighted Average Exercise Price		Number of Shares	Weighted Average Grant-Date Fair Value		Number of Shares	Weighted Average Grant-Date Fair Value
Beginning balance, January 1, 2021	658	$	22.48	5	$	22.35	1,032	$	24.53
Granted	—	—		—	—		526	29.00
Stock options exercised	(183)	22.50		—	—		—	—
Stock awards/units vested (earned)	—	—		(3)	22.48		(331)	25.62
Forfeited/expired	—	—		—	—		(77)	25.78
Balance, September 30, 2021	475	$	22.47	2	$	22.20	1,150	$	26.14
Exercisable, September 30, 2021	475	$	22.47

The following table summarizes information about stock options under the plans outstanding at September 30, 2021:

					Options Outstanding			Options Exercisable
Range of Exercise Prices					Number of Shares (In thousands)	Weighted Average Remaining Contractual Life (Years)	Weighted Average Exercise Price	Number of Shares (In thousands)	Weighted Average Exercise Price
$	9.46	—	$	9.46	1	0.30	$9.46	1	$9.46
10.65		—	10.65		3	1.33	10.65	3	10.65
20.29		—	20.29		47	3.25	20.29	47	20.29
20.36		—	20.36		1	3.13	20.36	1	20.36
22.20		—	22.20		51	3.48	22.20	51	22.20
22.75		—	22.75		293	3.86	22.75	293	22.75
23.51		—	23.51		72	4.30	23.51	72	23.51
24.07		—	24.07		7	3.96	24.07	7	24.07
$	9.46	—	$	24.07	475	3.80	$22.47	475	$22.47

The table below summarizes the Company’s performance stock unit activity for the nine months ended September 30, 2021:

(In thousands)	Performance Stock Units
Non-vested, January 1, 2021	222
Granted	97
Vested (earned)	(57)
Forfeited	(5)
Non-vested, June 30, 2021	257

Stock-based compensation expense was $12.6 million and $10.8 million during the nine month periods ended September 30, 2021 and 2020, respectively. Stock-based compensation expense is recognized ratably over the requisite service period for all stock-based awards. There was no unrecognized stock-based compensation expense related to stock options at September 30, 2021. Unrecognized stock-based compensation expense related to non-vested stock awards and stock units was $15.6 million at September 30, 2021. At such date, the weighted-average period over which this unrecognized expense is expected to be recognized was 1.7 years.

The intrinsic value of stock options outstanding and stock options exercisable at September 30, 2021 was $3.4 million. Aggregate intrinsic value represents the difference between the Company’s closing stock price on the last trading day of the period, which was $29.56 as of September 30, 2021, and the exercise price multiplied by the number of options outstanding. The total intrinsic value of stock options exercised during the nine months ended September 30, 2021 and 2020, was $1.3 million and $5,000, respectively.

The fair value of the Company’s employee stock options granted is estimated on the date of grant using the Black-Scholes option-pricing model. This model requires the input of highly subjective assumptions, changes to which can materially affect the fair value estimate. There were no stock options granted during the nine months ended September 30, 2021 and 2020.

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Earnings Per Share ("EPS")

9 Months Ended

Sep. 30, 2021

Earnings Per Share [Abstract]

Earnings Per Share ("EPS")

EARNINGS PER SHARE (“EPS”)

Basic EPS is computed by dividing reported net income available to common stockholders by weighted average number of common shares outstanding during each period. Diluted EPS is computed by dividing reported net income available to common stockholders by the weighted average common shares and all potential dilutive common shares outstanding during the period.

The computation of earnings per share is as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands, except per share data)	2021		2020		2021		2020
Net income available to common stockholders	$	80,561	$	65,885	$	222,879	$	201,897
Average common shares outstanding	107,822		109,019		108,130		110,292
Average potential dilutive common shares	538		189		538		189
Average diluted common shares	108,360		109,208		108,668		110,481
Basic earnings per share	$	0.75	$	0.60	$	2.06	$	1.83
Diluted earnings per share	$	0.74	$	0.60	$	2.05	$	1.83

There were no stock options excluded from the earnings per share calculation for the three and nine months ended September 30, 2021 due to the average market price exceeding the related stock option exercise price. There were approximately 653,718 stock options excluded from the earnings per share calculation for the three and nine months ended September 30, 2020 due to the related stock option exercise price exceeding the average market price.

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Additional Cash Flow Information

9 Months Ended

Sep. 30, 2021

Supplemental Cash Flow Information [Abstract]

Additional Cash Flow Information

ADDITIONAL CASH FLOW INFORMATION

The following is a summary of the Company’s additional cash flow information:

	Nine Months Ended September 30,
(In thousands)	2021		2020
Interest paid	$	59,535	$	95,040
Income taxes (refunded) paid	46,693		30,708
Transfers of loans to foreclosed assets held for sale	3,516		3,083
Transfers of premises to foreclosed assets and other real estate owned	—		3,120
Transfers of premises to premises held for sale	—		1,072
Transfers of other real estate owned to premises held for sale	—		3,504
Transfers of premises held for sale to other real estate owned	4,368		—
Transfers of premises held for sale to premises	5,610		—
Transfers of loans to other assets held for sale	—		114,925
Transfers of deposits to other liabilities held for sale	—		58,405

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Other Income and Other Operating Expenses

9 Months Ended

Sep. 30, 2021

Other Income and Expenses [Abstract]

Other Income and Other Operating Expenses

OTHER INCOME AND OTHER OPERATING EXPENSES

Other income for the three and nine months ended September 30, 2021 was $6.2 million and $24.6 million, respectively. Other income for the same periods in 2020 was $5.4 million and $28.0 million, respectively. During the nine month periods in 2021 and 2020, the Company recognized gains on sale of $5.3 million and $8.1 million, respectively, related to the sale of banking operations and bank branches.

Other operating expenses consisted of the following:

	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands)	2021		2020		2021		2020
Professional services	$	4,399	$	3,779	$	14,207	$	13,529
Postage	1,964		1,932		6,277		5,937
Telephone	1,516		2,103		4,758		6,738
Credit card expense (1)	2,727		2,818		7,588		7,690
Marketing	5,019		3,517		12,912		11,430
Software and technology	10,134		9,552		30,242		29,021
Operating supplies	605		824		2,013		2,588
Amortization of intangibles	3,332		3,362		10,008		10,144
Branch right sizing expense	(3,280)		442		(2,187)		2,401
Other expense	8,149		7,478		22,008		23,676
Total other operating expenses	$	34,565	$	35,807	$	107,826	$	113,154

_________________________

(1)    During the second and third quarters of 2021, certain debit and credit card transaction fees were reclassified from non-interest expense to non-interest income. Prior periods have been adjusted to reflect this reclassification.

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Certain Transactions

9 Months Ended

Sep. 30, 2021

Related Party Transactions [Abstract]

Certain Transactions

CERTAIN TRANSACTIONS

From time to time, the Company and its subsidiaries have made loans, other extensions of credit, and vendor contracts to directors, officers, their associates and members of their immediate families. Additionally, some directors, officers and their associates and members of their immediate families have placed deposits with the Company’s subsidiary bank, Simmons Bank. Such loans and other extensions of credit, deposits and vendor contracts (which were not material) were made in the ordinary course of business, on substantially the same terms (including interest rates and collateral) as those prevailing at the time for comparable transactions with unrelated persons or through a competitive bid process. Further, in management’s opinion, these extensions of credit did not involve more than normal risk of collectability or present other unfavorable features.

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Commitments and Credit Risk

9 Months Ended

Sep. 30, 2021

Commitments and Contingencies Disclosure [Abstract]

Commitments and Credit Risk

COMMITMENTS AND CREDIT RISK

The Company grants agribusiness, commercial and residential loans to customers primarily throughout Arkansas, Kansas, Missouri, Oklahoma, Tennessee and Texas, along with credit card loans to customers throughout the United States. Commitments to extend credit are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Since a portion of the commitments may expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements. Each customer’s creditworthiness is evaluated on a case-by-case basis. The amount of collateral obtained, if deemed necessary, is based on management’s credit evaluation of the counterparty. Collateral held varies, but may include accounts receivable, inventory, property, plant and equipment, commercial real estate and residential real estate.

At September 30, 2021, the Company had outstanding commitments to extend credit aggregating approximately $684.6 million and $2.59 billion for credit card commitments and other loan commitments, respectively. At December 31, 2020, the Company had outstanding commitments to extend credit aggregating approximately $671.5 million and $2.36 billion for credit card commitments and other loan commitments, respectively.

As of September 30, 2021, the Company had outstanding commitments to originate fixed rate-rate mortgage loans of approximately $96.6 million. At December 31, 2020, the Company had outstanding commitments to originate fixed-rate mortgage loans of approximately $214.0 million. 

Standby letters of credit are conditional commitments issued by the Company to guarantee the performance of a customer to a third party. Those guarantees are primarily issued to support public and private borrowing arrangements, including commercial paper, bond financing, and similar transactions. The credit risk involved in issuing letters of credit is essentially the same as that involved in extending loans to customers. The Company had total outstanding letters of credit amounting to $38.8 million and $49.0 million at September 30, 2021, and December 31, 2020, respectively, with terms ranging from 9 months to 15 years. At September 30, 2021 and December 31, 2020, the Company had no deferred revenue under standby letter of credit agreements.

The Company has purchased letters of credit from the FHLB as security for certain public deposits. The amount of the letters of credit was $69.0 million and $1.5 billion at September 30, 2021 and December 31, 2020, respectively, and they expire in less than one year from issuance.

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Fair Value Measurements

9 Months Ended

Sep. 30, 2021

Fair Value Disclosures [Abstract]

Fair Value Measurements

FAIR VALUE MEASUREMENTS

ASC Topic 820, Fair Value Measurements defines fair value, establishes a framework for measuring fair value and expands disclosures about fair value measurements.

ASC Topic 820 defines fair value as 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. The guidance also establishes a fair value hierarchy that requires the use of observable inputs and minimizes the use of unobservable inputs when measuring fair value. Topic 820 describes three levels of inputs that may be used to measure fair value: 

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

•Level 2 Inputs – Observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities in active markets; quoted prices for similar assets or liabilities 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 Inputs – Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities.

In general, fair value is based upon quoted market prices, where available. If such quoted market prices are not available, fair value is based upon internally developed models that primarily use, as inputs, observable market-based parameters. Valuation adjustments may be made to ensure that financial instruments are recorded at fair value. These adjustments may include amounts to reflect counterparty credit quality and the Company’s creditworthiness, among other things, as well as unobservable parameters. Any such valuation adjustments are applied consistently over time. The Company’s valuation methodologies may produce a fair value calculation that may not be indicative of net realizable value or reflective of future fair values. While management believes the Company’s valuation methodologies are appropriate and consistent with other market participants, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different estimate of fair value at the reporting date. Furthermore, the reported fair value amounts have not been comprehensively revalued since the presentation dates, and therefore, estimates of fair value after the balance sheet date may differ significantly from the amounts presented herein. A more detailed description of the valuation methodologies used for assets and liabilities measured at fair value, as well as the general classification of such instruments pursuant to the valuation hierarchy, is set forth below.

Following is a description of the inputs and valuation methodologies used for assets measured at fair value on a recurring basis and recognized in the accompanying consolidated balance sheets, as well as the general classification of such assets pursuant to the valuation hierarchy.

Available-for-sale securities – Where quoted market prices are available in an active market, securities are classified within Level 1 of the valuation hierarchy. Level 1 securities would include highly liquid government bonds, mortgage products and exchange traded equities. Other securities classified as available-for-sale are reported at fair value utilizing Level 2 inputs. For these securities, the Company obtains fair value measurements from an independent pricing service. The fair value measurements consider observable data that may include dealer quotes, market spreads, cash flows, the U.S. Treasury yield curve, live trading levels, trade execution data, market consensus prepayment speeds, credit information and the security’s terms and conditions, among other things. In order to ensure the fair values are consistent with ASC Topic 820, the Company periodically checks the fair values by comparing them to another pricing source, such as Bloomberg. The availability of pricing confirms Level 2 classification in the fair value hierarchy. The third-party pricing service is subject to an annual review of internal controls. In certain cases where Level 1 or Level 2 inputs are not available, securities are classified within Level 3 of the hierarchy. The Company’s investment in U.S. Treasury securities, if any, is reported at fair value utilizing Level 1 inputs. The remainder of the Company’s available-for-sale securities are reported at fair value utilizing Level 2 inputs.

Mortgage loans held for sale – Mortgage loans held for sale are reported at fair value on an aggregate basis. Adjustments to fair value are recognized monthly and reflected in earnings. In determining the fair value of loans held for sale, the Company may consider outstanding investor commitments, discounted cash flow analyses with market assumptions or the fair value of the collateral if the loan is collateral dependent. Such loans are classified within either Level 2 or Level 3 of the fair value hierarchy. Where assumptions are made using significant unobservable inputs, such loans held for sale are classified as Level 3. At September 30, 2021 and December 31, 2020, the aggregate fair value of mortgage loans held for sale exceeded their cost.

Derivative instruments – The Company’s derivative instruments are reported at fair value utilizing Level 2 inputs. The Company obtains fair value measurements from dealer quotes.

Other liabilities held for sale – The Company’s other liabilities held for sale are reported at fair value utilizing Level 3 inputs. See Note 4, Other Liabilities Held for Sale.

The following table sets forth the Company’s financial assets by level within the fair value hierarchy that were measured at fair value on a recurring basis as of September 30, 2021 and December 31, 2020.

			Fair Value Measurements Using
(In thousands)	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
September 30, 2021
Available-for-sale securities
U.S. Treasury	$	300	$	300	$	—	$	—
U.S. Government agencies	354,382		—		354,382		—
Mortgage-backed securities	4,421,620		—		4,421,620		—
State and political subdivisions	1,575,208		—		1,575,208		—
Other securities	470,693		—		470,693		—
Mortgage loans held for sale	34,628		—		—		34,628
Derivative asset	31,609		—		31,609		—
Derivative liability	(17,825)		—		(17,825)		—
December 31, 2020
Available-for-sale securities
U.S. Government agencies	$	477,237	$	—	$	477,237	$	—
Mortgage-backed securities	1,394,936		—		1,394,936		—
States and political subdivisions	1,470,723		—		1,470,723		—
Other securities	130,702		—		130,702		—
Mortgage loans held for sale	137,378		—		—		137,378
Derivative asset	35,846		—		35,846		—
Other liabilities held for sale	(154,620)		—		—		(154,620)
Derivative liability	(36,141)		—		(36,141)		—

Certain financial assets and liabilities are measured at fair value on a nonrecurring basis; that is, the instruments are not measured at fair value on an ongoing basis but are subject to fair value adjustments in certain circumstances. Financial assets and liabilities measured at fair value on a nonrecurring basis include the following:

Individually assessed loans (collateral-dependent) – When the Company has a specific expectation to initiate, or has initiated, foreclosure proceedings, and when the repayment of a loan is expected to be substantially dependent on the liquidation of underlying collateral, the relationship is deemed collateral-dependent. Fair value of the loan is determined by establishing an allowance for credit loss for any exposure based on the valuation of the underlying collateral. The valuation of the collateral is determined by either an independent third-party appraisal or other collateral analysis. Discounts can be made by the Company based upon the overall evaluation of the independent appraisal. Collateral-dependent loans are classified within Level 3 of the fair value hierarchy. Collateral values supporting the individually assessed loans are evaluated quarterly for updates to appraised values or adjustments due to non-current valuations.

Foreclosed assets and other real estate owned – Foreclosed assets and other real estate owned are reported at fair value, less estimated costs to sell. At foreclosure, if the fair value, less estimated costs to sell, of the real estate acquired is less than the Company’s recorded investment in the related loan, a write-down is recognized through a charge to the allowance for credit losses. Additionally, valuations are periodically performed by management and any subsequent reduction in value is recognized by a charge to income. The fair value of foreclosed assets and other real estate owned is estimated using Level 3 inputs based on unobservable market data.

The significant unobservable inputs (Level 3) used in the fair value measurement of collateral for collateral-dependent loans and foreclosed assets primarily relate to the specialized discounting criteria applied to the borrower’s reported amount of collateral. The amount of the collateral discount depends upon the condition and marketability of the collateral, as well as other factors which may affect the collectability of the loan. Management’s assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment and considers factors specific to the asset. It is reasonably possible that a change in the estimated fair value for instruments measured using Level 3 inputs could occur in the future. As the Company’s primary objective in the event of default would be to liquidate the collateral to settle the outstanding balance of the loan, collateral that is less marketable would receive a larger discount.

The following table sets forth the Company’s financial assets by level within the fair value hierarchy that were measured at fair value on a nonrecurring basis as of September 30, 2021 and December 31, 2020. 

			Fair Value Measurements Using
(In thousands)	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
September 30, 2021
Individually assessed loans (1) (2) (collateral-dependent)	$	31,075	$	—	$	—	$	31,075
Foreclosed assets and other real estate owned (1)	2,661		—		—		2,661
December 31, 2020
Individually assessed loans (1) (2) (collateral-dependent)	$	66,209	$	—	$	—	$	66,209
Foreclosed assets and other real estate owned (1)	17,074		—		—		17,074

________________________

(1)These amounts represent the resulting carrying amounts on the consolidated balance sheets for collateral-dependent loans and foreclosed assets and other real estate owned for which fair value re-measurements took place during the period.

(2)Identified reserves of $2,129,000 and $13,725,000 were related to collateral-dependent loans for which fair value re-measurements took place during the periods ended September 30, 2021 and December 31, 2020, respectively.

ASC Topic 825, Financial Instruments, requires disclosure in annual and interim financial statements of the fair value of financial assets and financial liabilities, including those financial assets and financial liabilities that are not measured and reported at fair value on a recurring basis or nonrecurring basis. The following methods and assumptions were used to estimate the fair value of each class of financial instruments not previously disclosed.

Cash and cash equivalents – The carrying amount for cash and cash equivalents approximates fair value (Level 1).

Interest bearing balances due from banks – The fair value of interest bearing balances due from banks – time is estimated using a discounted cash flow calculation that applies the rates currently offered on deposits of similar remaining maturities (Level 2).

Held-to-maturity securities – Fair values for held-to-maturity securities equal quoted market prices, if available, such as for highly liquid government bonds (Level 1). If quoted market prices are not available, fair values are estimated based on quoted market prices of similar securities. For these securities, the Company obtains fair value measurements from an independent pricing service. The fair value measurements consider observable data that may include dealer quotes, market spreads, cash flows, the U.S. Treasury yield curve, live trading levels, trade execution data, market consensus prepayment speeds, credit information and the security’s terms and conditions, among other things (Level 2). In certain cases where Level 1 or Level 2 inputs are not available, securities are classified within Level 3 of the hierarchy.

Loans – The fair value of loans is estimated by discounting the future cash flows, using the current rates at which similar loans would be made to borrowers with similar credit ratings and for the same remaining maturities. Additional factors considered include the type of loan and related collateral, variable or fixed rate, classification status, remaining term, interest rate, historical delinquencies, loan to value ratios, current market rates and remaining loan balance. The loans were grouped together according to similar characteristics and were treated in the aggregate when applying various valuation techniques. The discount rates used for loans were based on current market rates for new originations of similar loans. Estimated credit losses were also factored into the projected cash flows of the loans. The fair value of loans is estimated on an exit price basis incorporating the above factors (Level 3).

Deposits – The fair value of demand deposits, savings accounts and money market deposits is the amount payable on demand at the reporting date (i.e., their carrying amount) (Level 2). The fair value of fixed-maturity time deposits is estimated using a discounted cash flow calculation that applies the rates currently offered for deposits of similar remaining maturities (Level 3).

Federal Funds purchased, securities sold under agreement to repurchase and short-term debt – The carrying amount for Federal funds purchased, securities sold under agreement to repurchase and short-term debt are a reasonable estimate of fair value (Level 2).

Other borrowings – For short-term instruments, the carrying amount is a reasonable estimate of fair value. For long-term debt, rates currently available to the Company for debt with similar terms and remaining maturities are used to estimate the fair value (Level 2).

Subordinated debentures – The fair value of subordinated debentures is estimated using the rates that would be charged for subordinated debentures of similar remaining maturities (Level 2).

Accrued interest receivable/payable – The carrying amounts of accrued interest approximated fair value (Level 2).

Commitments to extend credit, letters of credit and lines of credit – The fair value of commitments is estimated using the fees currently charged to enter into similar agreements, taking into account the remaining terms of the agreements and the present creditworthiness of the counterparties. For fixed rate loan commitments, fair value also considers the difference between current levels of interest rates and the committed rates. The fair values of letters of credit and lines of credit are based on fees currently charged for similar agreements or on the estimated cost to terminate or otherwise settle the obligations with the counterparties at the reporting date.

The fair value of a financial instrument is the current amount that would be exchanged between willing parties, other than in a forced liquidation. Fair value is best determined based upon quoted market prices. However, in many instances, there are no quoted market prices for the Company’s various financial instruments. In cases where quoted market prices are not available, fair values are based on estimates using present value or other valuation techniques. Those techniques are significantly affected by the assumptions used, including the discount rate and estimates of future cash flows. Accordingly, the fair value estimates may not be realized in an immediate settlement of the instrument.

The estimated fair values, and related carrying amounts, of the Company’s financial instruments are as follows:

	Carrying		Fair Value Measurements
(In thousands)	Amount		Level 1		Level 2		Level 3		Total
September 30, 2021
Financial assets:
Cash and cash equivalents	$	1,781,413	$	1,781,413	$	—	$	—	$	1,781,413
Interest bearing balances due from banks - time	1,780		—		1,780		—		1,780
Held-to-maturity securities	1,516,797		—		1,487,916		—		1,487,916
Interest receivable	68,405		—		68,405		—		68,405
Loans, net	10,622,719		—		—		10,705,185		10,705,185
Financial liabilities:
Non-interest bearing transaction accounts	4,918,845		—		4,918,845		—		4,918,845
Interest bearing transaction accounts and savings deposits	10,697,451		—		10,697,451		—		10,697,451
Time deposits	2,455,774		—		—		2,460,441		2,460,441
Federal funds purchased and securities sold under agreements to repurchase	217,276		—		217,276		—		217,276
Other borrowings	1,338,585		—		1,408,087		—		1,408,087
Subordinated notes and debentures	383,278		—		395,786		—		395,786
Interest payable	11,230		—		11,230		—		11,230
December 31, 2020
Financial assets:
Cash and cash equivalents	$	3,472,152	$	3,472,152	$	—	$	—	$	3,472,152
Interest bearing balances due from banks - time	1,579		—		1,579		—		1,579
Held-to-maturity securities	333,031		—		341,925		—		341,925
Interest receivable	72,597		—		72,597		—		72,597
Loans, net	12,662,847		—		—		12,736,991		12,736,991
Financial liabilities:
Non-interest bearing transaction accounts	4,482,091		—		4,482,091		—		4,482,091
Interest bearing transaction accounts and savings deposits	9,672,608		—		9,672,608		—		9,672,608
Time deposits	2,832,327		—		—		2,848,621		2,848,621
Federal funds purchased and securities sold under agreements to repurchase	299,111		—		299,111		—		299,111
Other borrowings	1,342,067		—		1,448,625		—		1,448,625
Subordinated notes and debentures	382,874		—		398,827		—		398,827
Interest payable	8,887		—		8,887		—		8,887

The fair value of commitments to extend credit, letters of credit and lines of credit is not presented since management believes the fair value to be insignificant.

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Derivative Instruments

9 Months Ended

Sep. 30, 2021

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Instruments

DERIVATIVE INSTRUMENTSThe Company utilizes derivative instruments to manage exposure to various types of interest rate risk for itself and its customers within policy guidelines. Transactions should only be entered into with an associated underlying exposure. All derivative instruments are carried at fair value.

Derivative contracts involve the risk of dealing with institutional derivative counterparties and their ability to meet contractual terms. Institutional counterparties must have an investment grade credit rating and be approved by the Company’s asset/liability management committee. In arranging these products for its customers, the Company assumes additional credit risk from the customer and from the dealer counterparty with whom the transaction is undertaken. Credit risk exists due to the default credit risk created in the exchange of the payments over a period of time. Credit exposure on interest rate swaps is limited to the net favorable value and interest payments of all swaps with each counterparty. Access to collateral in the event of default is reasonably assured. Therefore, credit exposure may be reduced by the amount of collateral pledged by the counterparty.

Hedge Structures

The Company will seek to enter derivative structures that most effectively address the risk exposure and structural terms of the underlying position being hedged. The term and notional principal amount of a hedge transaction will not exceed the term or principal amount of the underlying exposure. In addition, the Company will use hedge indices which are the same as, or highly correlated to, the index or rate on the underlying exposure. Derivative credit exposure is monitored on an ongoing basis for each customer transaction and aggregate exposure to each counterparty is tracked. The Company has set a maximum outstanding notional contract amount at 10% of the Company’s assets.

Fair Value Hedges

For derivative instruments that are designated and qualify as a fair value hedge, the gain or loss on the derivative instrument as well as the offsetting loss or gain on the hedged asset or liability attributable to the hedged risk are recognized in current earnings. The gain or loss on the derivative instrument is presented on the same income statement line item as the earnings effect of the hedged item. During the third quarter of 2021, the Company began utilizing interest rate swaps designated as fair value hedges to mitigate the effect of changing interest rates on the fair values of fixed rate callable AFS securities. The hedging strategy converts the fixed interest rates to variable interest rates based on federal funds rates.

The following table summarizes the fair value hedges recorded in the accompanying consolidated balance sheets.

				September 30, 2021				December 31, 2020
(In thousands)	Balance Sheet Location	Weighted Average Pay Rate	Receive Rate	Notional		Fair Value		Notional		Fair Value
Derivative assets	Other assets	1.21%	Federal Funds	$	1,001,715	$	13,948	$	—	$	—

Customer Risk Management Interest Rate Swaps

The Company’s qualified loan customers have the opportunity to participate in its interest rate swap program for the purpose of managing interest rate risk on their variable rate loans with the Company. The Company enters into such agreements with customers, then offsetting agreements are executed between the Company and an approved dealer counterparty to minimize market risk from changes in interest rates. The counterparty contracts are identical to customer contracts in terms of notional amounts, interest rates, and maturity dates, except for a fixed pricing spread or fee paid to the Company by the dealer counterparty. These interest rate swaps carry varying degrees of credit, interest rate and market or liquidity risks. The fair value of these derivative instruments is recognized as either derivative assets or liabilities in the accompanying consolidated balance sheets. The Company has a limited number of swaps that are standalone without a similar agreement with the loan customer.

The following table summarizes the fair values of loan derivative contracts recorded in the accompanying consolidated balance sheets.

	September 30, 2021				December 31, 2020
(In thousands)	Notional		Fair Value		Notional		Fair Value
Derivative assets	$	316,357	$	17,661	$	408,881	$	35,846
Derivative liabilities	320,001		17,825		417,941		36,141

Risk Participation Agreements

The Company has a limited number of Risk Participation Agreement swaps, that are associated with loan participations, where the Company is not the counterparty to the interest rate swaps that are associated with the risk participation sold. The interest rate swap mark to market only impacts the Company if the swap is in a liability position to the counterparty and the customer defaults on payments to the counterparty. The notional amount of these contingent agreements is $31.4 million as of September 30, 2021.

Energy Hedging

The Company provides energy derivative services to qualifying, high quality oil and gas borrowers for hedging purposes. The Company serves as an intermediary on energy derivative products between the Company’s borrowers and dealers. The Company will only enter into back-to-back trades, thus maintaining a balanced book between the dealer and the borrower.

Energy hedging risk exposure to the Company’s customer increases as energy prices for crude oil and natural gas rise. As prices decrease, exposure to the exchange increases. These risks are mitigated by customer credit underwriting policies and establishing a predetermined hedge line for each borrower and by monitoring the exchange margin.

The outstanding notional value as of September 30, 2021 for energy hedging Customer Sell to Company swaps were $18.2 million and the corresponding Company Sell to Dealer swaps were $18.2 million and the corresponding net fair value of the derivative asset and derivative liability was $265,000.

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Preparation of Interim Financial Statements (Policies)

9 Months Ended

Sep. 30, 2021

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Presentation

Basis of Presentation

The accompanying unaudited consolidated financial statements have been prepared based upon Securities and Exchange Commission (“SEC”) rules that permit reduced disclosures for interim periods. Certain information and footnote disclosures have been condensed or omitted in accordance with those rules and regulations. The accompanying consolidated balance sheet as of December 31, 2020, was derived from audited financial statements. In the opinion of management, these financial statements reflect all adjustments that are necessary for a fair presentation of interim results of operations, including normal recurring accruals. Significant intercompany accounts and transactions have been eliminated in consolidation. The results for the interim periods are not necessarily indicative of results for the full year. For a more complete discussion of significant accounting policies and certain other information, this report should be read in conjunction with the consolidated financial statements and accompanying notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2020, which was filed with the SEC on February 25, 2021.

The preparation of financial statements, in accordance with accounting principles generally accepted in the United States (“US GAAP”), requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, income items and expenses and disclosure of contingent assets and liabilities. The estimates and assumptions used in the accompanying consolidated financial statements are based upon management’s evaluation of the relevant facts and circumstances as of the date of the consolidated financial statements and actual results may differ from these estimates. Such estimates include, but are not limited to, the Company’s allowance for credit losses.

Material estimates that are particularly susceptible to significant change relate to the determination of the allowance for credit losses, the valuation of real estate acquired in connection with foreclosures or in satisfaction of loans and the valuation of acquired loans. Management obtains independent appraisals for significant properties in connection with the determination of the allowance for credit losses and the valuation of foreclosed assets.

Reclassification

certain prior year amounts, have been reclassified to conform to the current year financial statement presentation. These changes and reclassifications did not impact previously reported net income or comprehensive income.

Recently Adopted and Issued Accounting Standards

Recently Adopted Accounting Standards

Reference Rate Reform – In March 2020, the Financial Accounting Standards Board (“FASB”) issued Accounting Standard Update (“ASU”) No. 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting (“ASU 2020-04”), which provides relief for companies preparing for discontinuation of interest rates such as the London Interbank Offered Rate (“LIBOR”). LIBOR is a benchmark interest rate referenced in a variety of agreements that are used by numerous entities. On March 5, 2021, the U.K. Financial Conduct Authority (“FCA”) announced that the majority of LIBOR rates will no longer be published after December 31, 2021, although a number of key settings will continue until June

2023, to support the rundown of legacy contracts only. As a result, LIBOR should be discontinued as a reference rate. Other interest rates used globally could also be discontinued for similar reasons. ASU 2020-04 provides optional expedients and exceptions to contracts, hedging relationships and other transactions affected by reference rate reform. The main provisions for contract modifications include optional relief by allowing the modification as a continuation of the existing contract without additional analysis and other optional expedients regarding embedded features. Optional expedients for hedge accounting permits changes to critical terms of hedging relationships and to the designated benchmark interest rate in a fair value hedge and also provides relief for assessing hedge effectiveness for cash flow hedges. Companies are able to apply ASU 2020-04 immediately; however, the guidance will only be available for a limited time (generally through December 31, 2022). The Company formed a LIBOR Transition Team in 2020, has created standard LIBOR replacement language for new and modified loan notes, and is monitoring the remaining loans with LIBOR rates monthly to ensure progress in updating these loans with acceptable LIBOR replacement language or converting them to other interest rates. The Company has not been offering LIBOR-indexed rates originated by other banks, subject to the Company’s determination that the LIBOR replacement language in the loan documents meets the Company’s standards. Pursuant to the Interagency Statement on LIBOR Transition issued in November 2020, the Company will not enter into any new LIBOR-based credit agreements after December 31, 2021. The adoption of ASU 2020-04 has not had a material impact on the Company’s financial position or results of operations.

In January 2021, the FASB issued ASU No. 2021-01, Reference Rate Reform (Topic 848): Scope (“ASU 2021-01”), which clarifies that certain optional expedients and exceptions in Accounting Standard Codification (“ASC”) 848 for contract modifications and hedge accounting apply to derivatives that are affected by the changes in the interest rates used for margining, discounting, or contract price alignment for derivative instruments that are being implemented as part of the market-wide transition to new reference rates (commonly referred to as the “discounting transition”). ASU 2021-01 also amends the expedients and exceptions in ASC 848 to capture the incremental consequences of the scope clarification and to tailor the existing guidance to derivative instruments affected by the discounting transition. ASU 2021-01 was effective upon issuance and generally can be applied through December 31, 2022. ASU 2021-01 did not have a material impact on the Company’s financial position or results of operations.

Income Taxes – In December 2019, the FASB issued ASU No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes (“ASU 2019-12”), that removes certain exceptions for investments, intraperiod allocations and interim calculations, and adds guidance to reduce complexity in accounting for income taxes. ASU 2019-12 introduces the following new guidance: i) guidance to evaluate whether a step-up in tax basis of goodwill relates to a business combination in which book goodwill was recognized or a separate transaction and ii) a policy election to not allocate consolidated income taxes when a member of a consolidated tax return is not subject to income tax. Additionally, ASU 2019-12 changes the following current guidance: i) making an intraperiod allocation, if there is a loss in continuing operations and gains outside of continuing operations, ii) determining when a deferred tax liability is recognized after an investor in a foreign entity transitions to or from the equity method of accounting, iii) accounting for tax law changes and year-to-date losses in interim periods, and iv) determining how to apply the income tax guidance to franchise taxes that are partially based on income. ASU 2019-12 is effective for fiscal years, and interim periods within those fiscal years beginning after December 15, 2020. The adoption of ASU 2019-12 did not have a material impact on the Company’s operations, financial position or disclosures.

Fair Value Measurement Disclosures – In August 2018, the FASB issued ASU No. 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework-Changes to the Disclosure Requirements for Fair Value Measurement (“ASU 2018-13”), that eliminates, amends and adds disclosure requirements for fair value measurements. These amendments are part of FASB’s disclosure review project and are expected to reduce costs for preparers while providing more decision-useful information for financial statement users. The eliminated disclosure requirements include the 1) the amount of, and reasons for, transfers between Level 1 and Level 2 of the fair value hierarchy; 2) the policy of timing of transfers between levels of the fair value hierarchy; and 3) the valuation processes for Level 3 fair value measurements. Among other modifications, the amended disclosure requirements remove the term “at a minimum” from the phrase “an entity shall disclose at a minimum” to promote the appropriate exercise of discretion by entities and clarifies that the measurement uncertainty disclosure is to communicate information about the uncertainty in measurement as of the reporting date. Under the new disclosure requirements, entities must disclose the changes in unrealized gains or losses included in other comprehensive income for recurring Level 3 fair value measurements held at the end of the reporting period and the range and weighted average used to develop significant unobservable inputs for Level 3 fair value measurements. ASU 2018-13 is effective for fiscal years beginning after December 15, 2019, and interim periods within those fiscal years, with early adoption permitted. The adoption of ASU 2018-13 did not have a material impact on the Company’s fair value disclosures.

Credit Losses on Financial Instruments – In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments (“ASU 2016-13”), which requires earlier measurement of credit losses, expands the range of information considered in determining expected credit losses and enhances disclosures. The main objective of ASU 2016-13 is to provide financial statement users with more decision-useful information about the expected credit losses on financial instruments and other commitments to extend credit held by a reporting entity at each reporting date. The amendments replaced the incurred loss impairment methodology in US GAAP with a methodology (the current expected credit losses, or “CECL”, methodology) that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates.

The CECL methodology utilizes a lifetime “expected credit loss” measurement objective for the recognition of credit losses for loans, held-to-maturity debt securities and other receivables measured at amortized cost at the time the financial asset is originated or acquired. The allowance for credit losses is adjusted each period for changes in expected lifetime credit losses. This methodology replaced the multiple existing impairment methods in previous guidance, which generally required that a loss be incurred before it is recognized. Within the life cycle of a loan or other financial asset, this new guidance will generally result in the earlier recognition of the provision for credit losses and the related allowance for credit losses than previous practice. For available-for-sale debt securities that the Company intends to hold and where fair value is less than cost, credit-related impairment, if any, will be recognized through an allowance for credit losses and adjusted each period for changes in credit risk.

The effective date for these amendments was for fiscal years beginning after December 15, 2019. In preparation for implementation of ASU 2016-13, the Company formed a cross functional team that assessed its data and system needs and evaluated the potential impact of adopting the new guidance. The Company anticipated a significant change in the processes and procedures to calculate the loan losses, including changes in assumptions and estimates to consider expected credit losses over the life of the loan versus the prior accounting practice that utilized the incurred loss model.

On March 27, 2020, the Coronavirus Aid, Relief, and Economic Security Act (“CARES Act”) was signed in to law by the President of the United States (“President”) and allows the option to temporarily defer or suspend the adoption of ASU 2016-13. During the deferral, a registrant would continue to use the incurred loss model for the allowance for loan and lease losses and would be in accordance with US GAAP. The Company did not elect to temporarily defer the adoption of ASU 2016-13 and adopted the new standard as of January 1, 2020. Upon adoption, the Company recorded an additional allowance for credit losses on loans of approximately $151.4 million and an adjustment to the reserve for unfunded commitments recorded in other liabilities of $24.0 million. The Company also recorded an additional allowance for credit losses on investment securities of $742,000. The impact at adoption was reflected as an adjustment to beginning retained earnings, net of income taxes, in the amount of $128.1 million.

The significant impact to the Company’s allowance for credit losses at the date of adoption was driven by the substantial amount of loans acquired held by the Company. The Company had approximately one third of total loans categorized as acquired at the adoption date with very little reserve allocated to them due to the previous incurred loss impairment methodology. As such, the amount of the CECL adoption impact was greater on the Company when compared to a non-acquisitive bank of a similar size.

In December 2018, the Federal Reserve, Office of the Comptroller of the Currency and Federal Deposit Insurance Corporation (“FDIC”) (collectively, the “agencies”) issued a final rule revising regulatory capital rules in anticipation of the adoption of ASU 2016-13 that provided an option to phase in over a three year period on a straight line basis the day-one impact on earnings and Tier 1 capital (the “CECL Transition Provision”).

In March 2020 and in response to the COVID-19 pandemic, the agencies issued a new regulatory capital rule revising the CECL Transition Provision to delay the estimated impact on regulatory capital stemming from the implementation of ASU 2016-13. The rule provides banking organizations that implement CECL before the end of 2020 the option to delay for two years an estimate of CECL’s effect on regulatory capital, followed by a three-year transition period (the “2020 CECL Transition Provision”). The Company elected to apply the 2020 CECL Transition Provision.

The Company used the prospective transition approach for financial assets purchased with credit deterioration (“PCD”) that were previously classified as purchased credit impaired (“PCI”) and accounted for under ASC 310-30, Loans and Debt Securities Acquired with Deteriorated Credit Quality. The Company increased the allowance for credit losses by approximately $5.4 million at adoption for the assets previously identified as PCI. In accordance with ASU 2016-13, the Company did not reassess whether PCI assets met the criteria of PCD assets as of the date of adoption.

Recently Issued Accounting Standards

Leases - In July 2021, the FASB issued ASU No. 2021-05, Leases (Topic 842): Lessors-Certain Leases with Variable Lease Payments (“ASU 2021-05”), that amends lease classification requirements for lessors. In accordance with ASU 2021-05, lessors should classify and account for a lease that have variable lease payments that do not depend on a reference index rate as an operating lease if both of the following criteria are met: i) the lease would have been classified as a sales-type lease or a direct financing lease under the previous lease classification criteria and ii) sales-type or direct financing lease classification would result in a Day 1 loss. ASU 2021-05 is effective for public business entities for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2021, with early adoption permitted. The Company is currently evaluating the impact of this standard, but the standard is not expected to have a material impact on the Company’s results of operations, financial position or disclosures.

There have been no other significant changes to the Company’s accounting policies from the 2020 Form 10-K. Presently, the Company is not aware of any other changes to the Accounting Standards Codification that will have a material impact on its present or future financial position or results of operations.

Income Taxes

The Company follows ASC Topic 740, Income Taxes, which prescribes a recognition threshold and a measurement attribute for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. Benefits from tax positions should be recognized in the financial statements only when it is more likely than not that the tax position will be sustained upon examination by the appropriate taxing authority that would have full knowledge of all relevant information. A tax position that meets the more-likely-than-not recognition threshold is measured at the largest amount of benefit that is greater than fifty percent likely of being realized upon ultimate settlement. Tax positions that previously failed to meet the more-likely-than-not recognition threshold should be recognized in the first subsequent financial reporting period in which that threshold is met. Previously recognized tax positions that no longer meet the more-likely-than-not recognition threshold should be derecognized in the first subsequent financial reporting period in which that threshold is no longer met. ASC Topic 740 also provides guidance on the accounting for and disclosure of unrecognized tax benefits, interest and penalties. The Company has no history of expiring net operating loss carryforwards and is projecting significant pre-tax and financial taxable income in future years. The Company expects to fully realize its deferred tax assets in the future.

The amount of unrecognized tax benefits may increase or decrease in the future for various reasons including adding amounts for current tax year positions, expiration of open income tax returns due to the statutes of limitation, changes in management’s judgment about the level of uncertainty, status of examinations, litigation and legislative activity and the addition or elimination of uncertain tax positions.

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Investment Securities (Tables)

9 Months Ended

Sep. 30, 2021

Investments, Debt and Equity Securities [Abstract]

Debt Securities, Held-to-maturity

The amortized cost, fair value and allowance for credit losses of investment securities that are classified as HTM are as follows: 

(In thousands)	Amortized Cost		Allowance for Credit Losses		Net Carrying Amount		Gross Unrealized Gains		Gross Unrealized (Losses)		Estimated Fair Value
Held-to-maturity
September 30, 2021
U.S. Government agencies	$	232,549	$	—	$	232,549	$	—	$	(5,179)	$	227,370
Mortgage-backed securities	57,930		—		57,930		417		(1,024)		57,323
State and political subdivisions	1,210,287		(1,196)		1,209,091		2,206		(24,962)		1,186,335
Other securities	17,310		(83)		17,227		—		(339)		16,888
Total HTM	$	1,518,076	$	(1,279)	$	1,516,797	$	2,623	$	(31,504)	$	1,487,916
December 31, 2020
Mortgage-backed securities	$	22,354	$	—	$	22,354	$	683	$	—	$	23,037
State and political subdivisions	312,416		(2,307)		310,109		8,148		(30)		318,227
Other securities	1,176		(608)		568		93		—		661
Total HTM	$	335,946	$	(2,915)	$	333,031	$	8,924	$	(30)	$	341,925

Debt Securities, Available-for-sale

The amortized cost, fair value and allowance for credit losses of investment securities that are classified as AFS are as follows:

(In thousands)	Amortized Cost		Allowance for Credit Losses		Gross Unrealized Gains		Gross Unrealized (Losses)		Estimated Fair Value
Available-for-sale
September 30, 2021
U.S. Treasury	$	300	$	—	$	—	$	—	$	300
U.S. Government agencies	361,452		—		635		(7,705)		354,382
Mortgage-backed securities	4,434,981		—		14,741		(28,102)		4,421,620
State and political subdivisions	1,574,674		—		17,877		(17,343)		1,575,208
Other securities	467,336		—		7,328		(3,971)		470,693
Total AFS	$	6,838,743	$	—	$	40,581	$	(57,121)	$	6,822,203
December 31, 2020
U.S. Government agencies	$	477,693	$	—	$	844	$	(1,300)	$	477,237
Mortgage-backed securities	1,374,769		—		21,261		(1,094)		1,394,936
State and political subdivisions	1,416,136		(217)		55,111		(307)		1,470,723
Other securities	128,445		(95)		2,447		(95)		130,702
Total AFS	$	3,397,043	$	(312)	$	79,663	$	(2,796)	$	3,473,598

Gross Unrealized Losses and Fair Value of Investments

The following table summarizes the Company’s AFS investments in an unrealized loss position for which an allowance for credit loss has not been recorded as of September 30, 2021, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position:

	Less Than 12 Months				12 Months or More				Total
(In thousands)	Estimated Fair Value		Gross Unrealized Losses		Estimated Fair Value		Gross Unrealized Losses		Estimated Fair Value		Gross Unrealized Losses
Available-for-sale
U.S. Government agencies	$	190,275	$	(3,759)	$	111,662	$	(3,946)	$	301,937	$	(7,705)
Mortgage-backed securities	2,342,244		(27,380)		46,253		(722)		2,388,497		(28,102)
State and political subdivisions	969,120		(16,056)		23,372		(1,287)		992,492		(17,343)
Other securities	157,974		(3,971)		—		—		157,974		(3,971)
Total AFS	$	3,659,613	$	(51,166)	$	181,287	$	(5,955)	$	3,840,900	$	(57,121)

Debt Securities, Allowance for Credit Loss

The following table details activity in the allowance for credit losses by investment security type for the three and nine months ended September 30, 2021 on the Company’s HTM and AFS securities portfolios.

(In thousands)	State and Political Subdivisions		Other Securities		Total
Three Months Ended September 30, 2021
Held-to-maturity
Beginning balance, July 1, 2021	$	871	$	261	$	1,132
Provision for credit loss expense	325		(325)		—
Recoveries	—		147		147
Ending balance, September 30, 2021	$	1,196	$	83	$	1,279
Available-for-sale
Beginning balance, July 1, 2021	$	—	$	—	$	—
Net decrease in allowance on previously impaired securities	—		—		—
Ending balance, September 30, 2021	$	—	$	—	$	—
Nine Months Ended September 30, 2021
Held-to-maturity
Beginning balance, January 1, 2021	$	2,307	$	608	$	2,915
Provision for credit loss expense	(1,111)		(72)		(1,183)
Securities charged-off	—		(600)		(600)
Recoveries	—		147		147
Ending balance, September 30, 2021	$	1,196	$	83	$	1,279
Available-for-sale
Beginning balance, January 1, 2021	$	217	$	95	$	312
Reduction due to sales	—		(11)		(11)
Net decrease in allowance on previously impaired securities	(217)		(84)		(301)
Ending balance, September 30, 2021	$	—	$	—	$	—

Activity in the allowance for credit losses by investment security type for the three and nine months ended September 30, 2020 on the Company’s HTM and AFS securities portfolio was as follows:

(In thousands)	State and Political Subdivisions		Other Securities		Total
Three Months Ended September 30, 2020
Held-to-maturity
Beginning balance, July 1, 2020	$	95	$	212	$	307
Provision for credit loss expense	(22)		88		66
Ending balance, September 30, 2020	$	73	$	300	$	373
Available-for-sale
Beginning balance, July 1, 2020	$	371	$	238	$	609
Credit losses on securities not previously recorded	1,137		23		1,160
Reduction due to sales	$	(294)	$	—	$	(294)
Net decrease in allowance on previously impaired securities	(66)		(201)		(267)
Ending balance, September 30, 2020	$	1,148	$	60	$	1,208
Nine Months Ended September 30, 2020
Held-to-maturity
Beginning balance, January 1, 2020	$	—	$	—	$	—
Impact of ASU 2016-13 adoption	58		311		369
Provision for credit loss expense	15		(11)		4
Ending balance, September 30, 2020	$	73	$	300	$	373
Available-for-sale
Beginning balance, January 1, 2020	$	—	$	—	$	—
Impact of ASU 2016-13 adoption	373		—		373
Credit losses on securities not previously recorded	1,130		78		1,208
Reduction due to sales	(244)		—		(244)
Net increase in allowance on previously impaired securities	(111)		(18)		(129)
Ending balance, September 30, 2020	$	1,148	$	60	$	1,208

Debt Securities, Held-to-maturity, Credit Quality Indicator

The following table summarizes bond ratings for the Company’s HTM portfolio, based upon amortized cost, issued by state and political subdivisions and other securities as of September 30, 2021:

	State and Political Subdivisions
(In thousands)	Not Guaranteed or Pre-Refunded		Other Credit Enhancement or Insurance		Pre-Refunded		Total		Other Securities
Aaa/AAA	$	130,326	$	114,831	$	—	$	245,157	$	—
Aa/AA	495,498		308,656		—		804,154		—
A	45,229		82,432		—		127,661		—
Baa/BBB	1,049		10,302		—		11,351		—
Not Rated	6,322		15,642		—		21,964		17,310
Total	$	678,424	$	531,863	$	—	$	1,210,287	$	17,310

Income Earned on Securities

Income earned on securities for the three and nine months ended September 30, 2021 and 2020, is as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands)	2021		2020		2021		2020
Taxable:
Held-to-maturity	$	1,127	$	256	$	2,477	$	715
Available-for-sale	15,949		6,937		39,313		26,604
Non-taxable:
Held-to-maturity	4,853		65		9,887		205
Available-for-sale	8,788		7,652		27,741		19,802
Total	$	30,717	$	14,910	$	79,418	$	47,326

Amortized Cost and Estimated Fair Value by Maturity of Securities

The amortized cost and estimated fair value by maturity of securities as of September 30, 2021 are shown in the following table. Securities are classified according to their contractual maturities without consideration of principal amortization, potential prepayments or call options. Accordingly, actual maturities may differ from contractual maturities. 

	Held-to-Maturity				Available-for-Sale
(In thousands)	Amortized Cost		Fair Value		Amortized Cost		Fair Value
One year or less	$	5,644	$	5,678	$	8,385	$	8,423
After one through five years	7,676		7,993		53,515		54,008
After five through ten years	27,094		26,019		487,966		492,654
After ten years	1,419,732		1,390,903		1,853,165		1,844,768
Securities not due on a single maturity date	57,930		57,323		4,434,981		4,421,620
Other securities (no maturity)	—		—		731		730
Total	$	1,518,076	$	1,487,916	$	6,838,743	$	6,822,203

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Loans and Allowance for Credit Losses (Tables)

9 Months Ended

Sep. 30, 2021

Receivables [Abstract]

Loan Portfolio

The various categories of loans are summarized as follows:

	September 30,		December 31,
(In thousands)	2021		2020
Consumer:
Credit cards	$	175,884	$	188,845
Other consumer	182,492		202,379
Total consumer	358,376		391,224
Real Estate:
Construction and development	1,229,740		1,596,255
Single family residential	1,540,701		1,880,673
Other commercial	5,308,902		5,746,863
Total real estate	8,079,343		9,223,791
Commercial:
Commercial	1,821,905		2,574,386
Agricultural	216,735		175,905
Total commercial	2,038,640		2,750,291
Other	348,868		535,591
Total loans	$	10,825,227	$	12,900,897

Nonaccrual Loans

The amortized cost basis of nonaccrual loans segregated by category of loans are as follows:

	September 30,		December 31,
(In thousands)	2021		2020
Consumer:
Credit cards	$	390	$	301
Other consumer	391		1,219
Total consumer	781		1,520
Real estate:
Construction and development	2,330		3,625
Single family residential	21,068		28,062
Other commercial	17,838		24,155
Total real estate	41,236		55,842
Commercial:
Commercial	16,532		65,244
Agricultural	505		273
Total commercial	17,037		65,517
Total	$	59,054	$	122,879

Past Due Loans

An age analysis of the amortized cost basis of past due loans, including nonaccrual loans, segregated by class of loans is as follows: 

(In thousands)	Gross 30-89 Days Past Due		90 Days or More Past Due		Total Past Due		Current		Total Loans		90 Days Past Due & Accruing
September 30, 2021
Consumer:
Credit cards	$	751	$	253	$	1,004	$	174,880	$	175,884	$	154
Other consumer	925		90		1,015		181,477		182,492		1
Total consumer	1,676		343		2,019		356,357		358,376		155
Real estate:
Construction and development	2,854		605		3,459		1,226,281		1,229,740		5
Single family residential	6,546		6,154		12,700		1,528,001		1,540,701		75
Other commercial	2,293		13,620		15,913		5,292,989		5,308,902		—
Total real estate	11,693		20,379		32,072		8,047,271		8,079,343		80
Commercial:
Commercial	2,130		6,639		8,769		1,813,136		1,821,905		99
Agricultural	140		459		599		216,136		216,735		—
Total commercial	2,270		7,098		9,368		2,029,272		2,038,640		99
Other	7		—		7		348,861		348,868		—
Total	$	15,646	$	27,820	$	43,466	$	10,781,761	$	10,825,227	$	334

(In thousands)	Gross 30-89 Days Past Due		90 Days or More Past Due		Total Past Due		Current		Total Loans		90 Days Past Due & Accruing
December 31, 2020
Consumer:
Credit cards	$	708	$	256	$	964	$	187,881	$	188,845	$	256
Other consumer	2,771		302		3,073		199,306		202,379		13
Total consumer	3,479		558		4,037		387,187		391,224		269
Real estate:
Construction and development	1,375		3,089		4,464		1,591,791		1,596,255		—
Single family residential	23,726		14,339		38,065		1,842,608		1,880,673		253
Other commercial	2,660		9,586		12,246		5,734,617		5,746,863		—
Total real estate	27,761		27,014		54,775		9,169,016		9,223,791		253
Commercial:
Commercial	7,514		7,429		14,943		2,559,443		2,574,386		56
Agricultural	226		187		413		175,492		175,905		—
Total commercial	7,740		7,616		15,356		2,734,935		2,750,291		56
Other	92		—		92		535,499		535,591		—
Total	$	39,072	$	35,188	$	74,260	$	12,826,637	$	12,900,897	$	578

Troubled Debt Restructuring

The following table presents a summary of TDRs segregated by class of loans.

	Accruing TDR Loans			Nonaccrual TDR Loans			Total TDR Loans
(Dollars in thousands)	Number	Balance		Number	Balance		Number	Balance
September 30, 2021
Real estate:
Single-family residential	28	$	2,994	12	$	1,141	40	$	4,135
Other commercial	2	820		1	1		3	821
Total real estate	30	3,814		13	1,142		43	4,956
Commercial:
Commercial	2	437		2	1,408		4	1,845
Total commercial	2	437		2	1,408		4	1,845
Total	32	$	4,251	15	$	2,550	47	$	6,801
December 31, 2020
Real estate:
Single-family residential	28	$	2,463	18	$	2,736	46	$	5,199
Other commercial	1	49		1	12		2	61
Total real estate	29	2,512		19	2,748		48	5,260
Commercial:
Commercial	3	626		3	1,627		6	2,253
Total commercial	3	626		3	1,627		6	2,253
Total	32	$	3,138	22	$	4,375	54	$	7,513

The following table presents loans that were restructured as TDRs during the nine month periods ended September 30, 2021 and 2020. There were no loans restructured as TDRs during the three month periods ended September 30, 2021 and 2020.

(Dollars in thousands)	Number of loans	Balance Prior to TDR		Balance at September 30,		Change in Maturity Date		Change in Rate		Financial Impact on Date of Restructure
Nine Months Ended Sept 30, 2021
Real estate:
Other commercial	1	$	784	$	778	$	—	$	778	$	—
Total real estate	1	$	784	$	778	$	—	$	778	$	—
Nine Months Ended Sept 30, 2020
Real estate:
Single-family residential	5	$	1,948	$	1,896	$	1,896	$	—	$	—
Total real estate	5	$	1,948	$	1,896	$	1,896	$	—	$	—

Loans by Credit Risk Ratings

	Term Loans Amortized Cost Basis by Origination Year
(In thousands)	2021 (YTD)		2020		2019		2018		2017		2016 and Prior		Lines of Credit (“LOC”) Amortized Cost Basis		LOC Converted to Term Loans Amortized Cost Basis		Total
Consumer - credit cards
Delinquency:
Current	—		—		—		—		—		—		174,880		—		174,880
30-89 days past due	—		—		—		—		—		—		751		—		751
90+ days past due	—		—		—		—		—		—		253		—		253
Total consumer - credit cards	—		—		—		—		—		—		175,884		—		175,884
Consumer - other
Delinquency:
Current	105,415		26,334		15,158		8,396		7,051		5,138		13,985		—		181,477
30-89 days past due	197		148		113		142		184		129		12		—		925
90+ days past due	—		14		27		9		20		19		1		—		90
Total consumer - other	105,612		26,496		15,298		8,547		7,255		5,286		13,998		—		182,492
Real estate - C&D
Risk rating:
Pass	47,644		94,278		33,487		19,254		12,848		10,030		982,776		21,429		1,221,746
Special mention	—		—		279		—		—		—		—		—		279
Substandard	1,801		83		146		57		328		674		2,673		1,953		7,715
Doubtful and loss	—		—		—		—		—		—		—		—		—
Total real estate - C&D	49,445		94,361		33,912		19,311		13,176		10,704		985,449		23,382		1,229,740
Real estate - SF residential
Delinquency:
Current	223,243		245,410		152,838		229,241		179,874		318,019		169,693		9,683		1,528,001
30-89 days past due	—		217		1,124		704		1,279		2,215		1,007		—		6,546
90+ days past due	67		380		595		1,141		1,528		1,785		586		72		6,154
Total real estate - SF residential	223,310		246,007		154,557		231,086		182,681		322,019		171,286		9,755		1,540,701
Real estate - other commercial
Risk rating:
Pass	712,198		825,416		361,642		305,381		484,230		549,452		1,410,186		217,398		4,865,903
Special mention	32,752		57,067		2,833		7,666		34,164		8,723		91,572		7,194		241,971
Substandard	33,001		25,289		6,172		9,800		33,130		22,630		50,335		20,671		201,028
Doubtful and loss	—		—		—		—		—		—		—		—		—
Total real estate - other commercial	777,951		907,772		370,647		322,847		551,524		580,805		1,552,093		245,263		5,308,902
Commercial
Risk rating:
Pass	419,739		212,161		91,328		66,078		30,687		44,298		852,103		46,186		1,762,580
Special mention	—		2,438		569		210		252		384		106		11,016		14,975
Substandard	3,726		18,934		2,016		1,512		688		978		10,048		6,448		44,350
Doubtful and loss	—		—		—		—		—		—		—		—		—
Total commercial	423,465		233,533		93,913		67,800		31,627		45,660		862,257		63,650		1,821,905
Commercial - agriculture
Risk rating:
Pass	27,000		22,841		11,726		4,599		2,688		655		144,909		1,447		215,865
Special mention	—		—		—		9		—		—		—		—		9
Substandard	192		70		99		254		68		9		99		70		861
Doubtful and loss	—		—		—		—		—		—		—		—		—
Total commercial - agriculture	27,192		22,911		11,825		4,862		2,756		664		145,008		1,517		216,735
Other
Delinquency:
Current	58		4,789		1,287		24,108		5,483		6,111		307,025		—		348,861
30-89 days past due	—		—		—		—		—		7		—		—		7
90+ days past due	—		—		—		—		—		—		—		—		—
Total other	58		4,789		1,287		24,108		5,483		6,118		307,025		—		348,868
Total	$	1,607,033	$	1,535,869	$	681,439	$	678,561	$	794,502	$	971,256	$	4,213,000	$	343,567	$	10,825,227

The following table presents a summary of loans by credit quality indicator, as of December 31, 2020, segregated by class of loans.

	Term Loans Amortized Cost Basis by Origination Year
(In thousands)	2020		2019		2018		2017		2016		2015 and Prior		Lines of Credit (“LOC”) Amortized Cost Basis		LOC Converted to Term Loans Amortized Cost Basis		Total
Consumer - credit cards
Delinquency:
Current	—		—		—		—		—		—		187,881		—		187,881
30-89 days past due	—		—		—		—		—		—		708		—		708
90+ days past due	—		—		—		—		—		—		256		—		256
Total consumer - credit cards	—		—		—		—		—		—		188,845		—		188,845
Consumer - other
Delinquency:
Current	69,334		44,215		27,525		21,995		19,023		2,530		14,684		—		199,306
30-89 days past due	234		441		327		658		689		84		338		—		2,771
90+ days past due	79		58		25		80		40		12		8		—		302
Total consumer - other	69,647		44,714		27,877		22,733		19,752		2,626		15,030		—		202,379
Real estate - C&D
Risk rating:
Pass	165,990		35,989		31,279		15,960		9,233		4,807		1,272,870		23,251		1,559,379
Special mention	2,728		344		259		2,107		19		—		9,613		—		15,070
Substandard	294		2,069		404		449		342		320		17,914		14		21,806
Doubtful and loss	—		—		—		—		—		—		—		—		—
Total real estate - C&D	169,012		38,402		31,942		18,516		9,594		5,127		1,300,397		23,265		1,596,255
Real estate - SF residential
Delinquency:
Current	473,340		209,810		297,308		235,429		183,229		236,395		196,505		10,592		1,842,608
30-89 days past due	6,300		2,258		2,593		2,610		2,058		6,050		1,781		76		23,726
90+ days past due	557		1,853		2,735		2,582		832		3,852		1,928		—		14,339
Total real estate - SF residential	480,197		213,921		302,636		240,621		186,119		246,297		200,214		10,668		1,880,673
Real estate - other commercial
Risk rating:
Pass	1,563,245		525,750		375,303		518,534		372,679		284,098		1,445,428		181,949		5,266,986
Special mention	100,085		4,346		10,738		19,943		26,245		10,608		63,305		23,435		258,705
Substandard	66,737		9,418		24,380		14,067		3,744		11,158		52,182		39,486		221,172
Doubtful and loss	—		—		—		—		—		—		—		—		—
Total real estate - other commercial	1,730,067		539,514		410,421		552,544		402,668		305,864		1,560,915		244,870		5,746,863
Commercial
Risk rating:
Pass	1,168,085		154,740		110,383		65,757		35,198		45,568		803,751		56,648		2,440,130
Special mention	5,707		342		465		972		54		—		12,318		22,546		42,404
Substandard	23,227		4,495		1,586		730		276		334		53,682		7,522		91,852
Doubtful and loss	—		—		—		—		—		—		—		—		—
Total commercial	1,197,019		159,577		112,434		67,459		35,528		45,902		869,751		86,716		2,574,386
Commercial - agriculture
Risk rating:
Pass	36,128		19,144		10,014		4,671		1,916		340		101,238		1,560		175,011
Special mention	—		79		13		299		—		6		34		—		431
Substandard	86		101		64		47		12		10		68		75		463
Doubtful and loss	—		—		—		—		—		—		—		—		—
Total commercial - agriculture	36,214		19,324		10,091		5,017		1,928		356		101,340		1,635		175,905
Other
Delinquency:
Current	125		4,260		27,256		6,489		2,628		6,065		488,676		—		535,499
30-89 days past due	59		—		—		—		33		—		—		—		92
90+ days past due	—		—		—		—		—		—		—		—		—
Total other	184		4,260		27,256		6,489		2,661		6,065		488,676		—		535,591
Total	$	3,682,340	$	1,019,712	$	922,657	$	913,379	$	658,250	$	612,237	$	4,725,168	$	367,154	$	12,900,897

Allowance for Loan Losses

The collateral securing these loans consist of commercial real estate properties, residential properties, other business assets, and secured energy production assets.

(In thousands)	Real Estate Collateral		Energy		Other Collateral		Total
Construction and development	$	4,181	$	—	$	—	$	4,181
Single family residential	2,921		—		—		2,921
Other commercial real estate	31,672		—		—		31,672
Commercial	—		—		3,317		3,317
Total	$	38,774	$	—	$	3,317	$	42,091

The following table details activity in the allowance for credit losses by portfolio segment for the three and nine months ended September 30, 2021. Allocation of a portion of the allowance to one category of loans does not preclude its availability to absorb losses in other categories. 

(In thousands)	Commercial		Real Estate		Credit Card		Other Consumer and Other		Total
Allowance for credit losses:
Three Months Ended September 30, 2021
Beginning balance, July 1, 2021	$	29,793	$	188,388	$	5,442	$	3,616	$	227,239
Provision for credit loss expense	(11,853)		(7,668)		(247)		(122)		(19,890)
Charge-offs	(932)		(5,941)		(711)		(463)		(8,047)
Recoveries	463		2,068		267		408		3,206
Net charge-offs	(469)		(3,873)		(444)		(55)		(4,841)
Ending balance, September 30, 2021	$	17,471	$	176,847	$	4,751	$	3,439	$	202,508
Nine Months Ended September 30, 2021
Beginning balance, January 1, 2021	$	42,093	$	182,868	$	7,472	$	5,617	$	238,050
Provision for credit loss expense	(25,453)		(1,948)		(763)		(1,737)		(29,901)
Charge-offs	(2,099)		(8,068)		(2,759)		(1,577)		(14,503)
Recoveries	2,930		3,995		801		1,136		8,862
Net charge-offs	831		(4,073)		(1,958)		(441)		(5,641)
Ending balance, September 30, 2021	$	17,471	$	176,847	$	4,751	$	3,439	$	202,508

Activity in the allowance for credit losses for the three and nine months ended September 30, 2020 was as follows:

(In thousands)	Commercial		Real Estate		Credit Card		Other Consumer and Other		Total
Allowance for credit losses:
Three Months Ended September 30, 2020
Beginning balance, July 1, 2020	$	59,138	$	149,471	$	10,979	$	12,055	$	231,643
Provision for credit losses	(6,499)		33,479		(1,823)		(2,844)		22,313
Charge-offs	(4,327)		(1,153)		(832)		(1,091)		(7,403)
Recoveries	936		120		276		366		1,698
Net (charge-offs) recoveries	(3,391)		(1,033)		(556)		(725)		(5,705)
Ending balance, September 30, 2020	$	49,248	$	181,917	$	8,600	$	8,486	$	248,251

Nine Months Ended September 30, 2020
Beginning balance, January 1, 2020 - prior to adoption of CECL	$	22,863	$	39,161	$	4,051	$	2,169	$	68,244
Impact of CECL adoption	22,733		114,314		2,232		12,098		151,377
Provision for credit loss expense	42,808		31,341		4,870		(3,829)		75,190
Charge-offs	(40,537)		(3,373)		(3,326)		(3,062)		(50,298)
Recoveries	1,381		474		773		1,110		3,738
Net charge-offs	(39,156)		(2,899)		(2,553)		(1,952)		(46,560)
Ending balance, September 30, 2020	$	49,248	$	181,917	$	8,600	$	8,486	$	248,251

The components of the provision for credit losses for the three and nine month periods ended September 30, 2021 and 2020 were as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands)	2021		2020		2021		2020
Provision for credit losses related to:
Loans	$	(19,890)	$	22,313	$	(29,901)	$	75,190
Unfunded commitments	—		—		—		(8,000)
Securities - HTM	—		66		(1,183)		4
Securities - AFS	—		602		(312)		836
Total	$	(19,890)	$	22,981	$	(31,396)	$	68,030

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Right-Of-Use Lease Assets and Lease Liabilities (Tables)

9 Months Ended

Sep. 30, 2021

Leases [Abstract]

Components of Lease Expense and Supplemental Information

The following table presents information as of September 30, 2021 and December 31, 2020 related to the Company’s right-of-use lease assets, included in premises and equipment, and lease liabilities, included in accrued interest and other liabilities.

	September 30,			December 31,
(Dollars in thousands)	2021			2020
Right-of-use lease assets	$	40,700		$	31,348
Lease liabilities	41,110			31,433
Weighted average remaining lease term	8.52 years			6.55 years
Weighted average discount rate	2.43		%	3.09		%

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Premises and Equipment (Tables)

9 Months Ended

Sep. 30, 2021

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

Total premises and equipment, net at September 30, 2021 and December 31, 2020 were as follows:

	September 30,		December 31,
(In thousands)	2021		2020
Right-of-use lease assets	$	40,700	$	31,348
Premises and equipment:
Land	99,317		90,953
Buildings and improvements	313,884		293,338
Furniture, fixtures and equipment	103,946		100,863
Software	65,855		64,877
Construction in progress	3,950		763
Accumulated depreciation and amortization	(163,728)		(140,450)
Total premises and equipment, net	$	463,924	$	441,692

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Goodwill and Other Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Other Intangibles

Changes in the carrying amount and accumulated amortization of the Company’s core deposit premiums and other intangible assets at September 30, 2021 and December 31, 2020 were as follows: 

	September 30,		December 31,
(In thousands)	2021		2020
Core deposit premiums:
Balance, beginning of year	$	97,363	$	111,808
Disposition of intangible asset(1)	(674)		(2,324)
Amortization	(8,978)		(12,121)
Balance, end of period	87,711		97,363
Books of business and other intangibles:
Balance, beginning of year	13,747		15,532
Disposition of intangible asset	—		(413)
Amortization	(1,030)		(1,372)
Balance, end of period	12,717		13,747
Total other intangible assets, net	$	100,428	$	111,110

_________________________

(1)    Adjustments recorded for the premiums on certain deposit liabilities associated with the sale of banking operations.

The carrying basis and accumulated amortization of the Company’s other intangible assets at September 30, 2021 and December 31, 2020 were as follows: 

	September 30,		December 31,
(In thousands)	2021		2020
Core deposit premiums:
Gross carrying amount	$	144,202	$	146,355
Accumulated amortization	(56,491)		(48,992)
Core deposit premiums, net	87,711		97,363
Books of business and other intangibles:
Gross carrying amount	19,937		19,937
Accumulated amortization	(7,220)		(6,190)
Books of business and other intangibles, net	12,717		13,747
Total other intangible assets, net	$	100,428	$	111,110

Estimated Remaining Amortization Expense

The Company’s estimated remaining amortization expense on other intangible assets as of September 30, 2021 is as follows:

(In thousands)	Year	Amortization Expense
	Remainder of 2021	$	3,332
	2022	13,275
	2023	12,992
	2024	12,090
	2025	9,505
	Thereafter	49,234
	Total	$	100,428

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Income Taxes (Tables)

9 Months Ended

Sep. 30, 2021

Income Tax Disclosure [Abstract]

Provision for Income Taxes

The provision for income taxes is comprised of the following components for the periods indicated below:

	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands)	2021		2020		2021		2020
Income taxes currently payable	$	21,500	$	19,329	$	46,566	$	51,000
Deferred income taxes	(2,730)		(1,696)		3,585		2,920
Provision for income taxes	$	18,770	$	17,633	$	50,151	$	53,920

Schedule of Deferred Tax Assets and Liabilities

The tax effects of temporary differences between the tax basis of assets and liabilities and their financial reporting amounts that give rise to deferred income tax assets and liabilities, and their approximate tax effects, are as follows: 

	September 30,		December 31,
(In thousands)	2021		2020
Deferred tax assets:
Loans acquired	$	5,882	$	10,100
Allowance for credit losses	47,652		58,028
Valuation of foreclosed assets	1,631		1,673
Tax NOLs from acquisition	13,698		16,028
Deferred compensation payable	3,342		3,060
Accrued equity and other compensation	6,091		5,905
Acquired securities	431		587
Right-of-use lease liability	9,992		7,835
Unrealized loss on AFS securities	3,631		—
Allowance for unfunded commitments	5,444		5,583
Other	8,255		7,600
Gross deferred tax assets	106,049		116,399
Deferred tax liabilities:
Goodwill and other intangible amortization	(36,584)		(38,882)
Accumulated depreciation	(24,510)		(34,667)
Right-of-use lease asset	(9,893)		(7,813)
Unrealized gain on AFS securities	—		(17,521)
Other	(4,001)		(4,021)
Gross deferred tax liabilities	(74,988)		(102,904)
Net deferred tax asset	$	31,061	$	13,495

Reconciliation of Income Tax Expense

A reconciliation of income tax expense at the statutory rate to the Company’s actual income tax expense is shown for the periods indicated below:

	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands)	2021		2020		2021		2020
Computed at the statutory rate (21%)	$	20,859	$	17,539	$	57,336	$	53,719
Increase (decrease) in taxes resulting from:
State income taxes, net of federal tax benefit	1,477		1,143		4,855		5,502
Stock-based compensation	(22)		74		15		143
Tax exempt interest income	(2,973)		(1,752)		(8,224)		(4,594)
Tax exempt earnings on BOLI	(435)		(308)		(995)		(839)
Federal tax credits	(491)		(434)		(1,670)		(1,252)
Other differences, net	355		1,371		(1,166)		1,241
Actual tax provision	$	18,770	$	17,633	$	50,151	$	53,920

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Securities Sold Under Agreements to Repurchase (Tables)

9 Months Ended

Sep. 30, 2021

Disclosure of Repurchase Agreements [Abstract]

Contractual Maturity of Securities Sold Under Agreements to Repurchase

The remaining contractual maturity of the securities sold under agreements to repurchase in the consolidated balance sheets as of September 30, 2021 and December 31, 2020 is presented in the following tables.

	Remaining Contractual Maturity of the Agreements
(In thousands)	Overnight and Continuous		Up to 30 Days		30-90 Days		Greater than 90 Days		Total
September 30, 2021
Repurchase agreements:
U.S. Government agencies	$	202,276	$	—	$	—	$	—	$	202,276
December 31, 2020
Repurchase agreements:
U.S. Government agencies	$	248,861	$	—	$	—	$	—	$	248,861

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Other Borrowings and Subordinated Notes and Debentures (Tables)

9 Months Ended

Sep. 30, 2021

Debt Disclosure [Abstract]

Debt

Debt at September 30, 2021 and December 31, 2020 consisted of the following components: 

	September 30,		December 31,
(In thousands)	2021		2020
Other Borrowings
FHLB advances, net of discount, due 2022 to 2035, 0.23% to 7.37% secured by real estate loans	$	1,306,360	$	1,308,674
Other long-term debt	32,225		33,393
Total other borrowings	1,338,585		1,342,067
Subordinated Notes and Debentures
Subordinated notes payable, due 4/1/2028, fixed-to-floating rate (fixed rate of 5.00% through 3/31/2023, floating rate of 2.15% above the three month LIBOR rate, reset quarterly)	330,000		330,000
Trust preferred securities, due 9/15/2037, floating rate of 1.37% above the three month LIBOR rate, reset quarterly	10,310		10,310
Trust preferred securities, due 6/6/2037, floating rate of 1.57% above the three month LIBOR rate, reset quarterly, callable without penalty	10,310		10,310
Trust preferred securities, due 12/15/2035, floating rate of 1.45% above the three month LIBOR rate, reset quarterly, callable without penalty	6,702		6,702
Trust preferred securities, net of discount, due 6/15/2037, floating rate of 1.85% above the three month LIBOR rate, reset quarterly, callable without penalty	25,290		25,172
Trust preferred securities, net of discount, due 12/15/2036, floating rate of 1.85% above the three month LIBOR rate, reset quarterly, callable without penalty	3,036		3,023
Unamortized debt issuance costs	(2,370)		(2,643)
Total subordinated notes and debentures	383,278		382,874
Total other borrowings and subordinated debt	$	1,721,863	$	1,724,941

Aggregate Annual Maturities of Long-term Debt

Aggregate annual maturities of long-term debt at September 30, 2021, are as follows: 

Year	(In thousands)
Remainder of 2021	$	451
2022	1,727
2023	1,686
2024	2,327
2025	4,876
Thereafter	1,710,796
Total	$	1,721,863

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Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2021

Share-based Payment Arrangement [Abstract]

Stock Compensation Plans

The table below summarizes the transactions under the Company’s active stock-based compensation plans for the nine months ended September 30, 2021: 

	Stock Options Outstanding			Non-vested Stock Awards Outstanding			Non-vested Stock Units Outstanding
(Shares in thousands)	Number of Shares	Weighted Average Exercise Price		Number of Shares	Weighted Average Grant-Date Fair Value		Number of Shares	Weighted Average Grant-Date Fair Value
Beginning balance, January 1, 2021	658	$	22.48	5	$	22.35	1,032	$	24.53
Granted	—	—		—	—		526	29.00
Stock options exercised	(183)	22.50		—	—		—	—
Stock awards/units vested (earned)	—	—		(3)	22.48		(331)	25.62
Forfeited/expired	—	—		—	—		(77)	25.78
Balance, September 30, 2021	475	$	22.47	2	$	22.20	1,150	$	26.14
Exercisable, September 30, 2021	475	$	22.47

Stock Options

The following table summarizes information about stock options under the plans outstanding at September 30, 2021:

					Options Outstanding			Options Exercisable
Range of Exercise Prices					Number of Shares (In thousands)	Weighted Average Remaining Contractual Life (Years)	Weighted Average Exercise Price	Number of Shares (In thousands)	Weighted Average Exercise Price
$	9.46	—	$	9.46	1	0.30	$9.46	1	$9.46
10.65		—	10.65		3	1.33	10.65	3	10.65
20.29		—	20.29		47	3.25	20.29	47	20.29
20.36		—	20.36		1	3.13	20.36	1	20.36
22.20		—	22.20		51	3.48	22.20	51	22.20
22.75		—	22.75		293	3.86	22.75	293	22.75
23.51		—	23.51		72	4.30	23.51	72	23.51
24.07		—	24.07		7	3.96	24.07	7	24.07
$	9.46	—	$	24.07	475	3.80	$22.47	475	$22.47

Restricted Performance Stock Unit Activity

The table below summarizes the Company’s performance stock unit activity for the nine months ended September 30, 2021:

(In thousands)	Performance Stock Units
Non-vested, January 1, 2021	222
Granted	97
Vested (earned)	(57)
Forfeited	(5)
Non-vested, June 30, 2021	257

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Earnings Per Share ("EPS") (Tables)

9 Months Ended

Sep. 30, 2021

Earnings Per Share [Abstract]

Computation of Earnings Per Share

The computation of earnings per share is as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands, except per share data)	2021		2020		2021		2020
Net income available to common stockholders	$	80,561	$	65,885	$	222,879	$	201,897
Average common shares outstanding	107,822		109,019		108,130		110,292
Average potential dilutive common shares	538		189		538		189
Average diluted common shares	108,360		109,208		108,668		110,481
Basic earnings per share	$	0.75	$	0.60	$	2.06	$	1.83
Diluted earnings per share	$	0.74	$	0.60	$	2.05	$	1.83

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Additional Cash Flow Information (Tables)

9 Months Ended

Sep. 30, 2021

Supplemental Cash Flow Information [Abstract]

Additional Cash Flow Information

The following is a summary of the Company’s additional cash flow information:

	Nine Months Ended September 30,
(In thousands)	2021		2020
Interest paid	$	59,535	$	95,040
Income taxes (refunded) paid	46,693		30,708
Transfers of loans to foreclosed assets held for sale	3,516		3,083
Transfers of premises to foreclosed assets and other real estate owned	—		3,120
Transfers of premises to premises held for sale	—		1,072
Transfers of other real estate owned to premises held for sale	—		3,504
Transfers of premises held for sale to other real estate owned	4,368		—
Transfers of premises held for sale to premises	5,610		—
Transfers of loans to other assets held for sale	—		114,925
Transfers of deposits to other liabilities held for sale	—		58,405

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Other Income and Other Operating Expenses (Tables)

9 Months Ended

Sep. 30, 2021

Other Income and Expenses [Abstract]

Other Operating Expenses

Other operating expenses consisted of the following:

	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands)	2021		2020		2021		2020
Professional services	$	4,399	$	3,779	$	14,207	$	13,529
Postage	1,964		1,932		6,277		5,937
Telephone	1,516		2,103		4,758		6,738
Credit card expense (1)	2,727		2,818		7,588		7,690
Marketing	5,019		3,517		12,912		11,430
Software and technology	10,134		9,552		30,242		29,021
Operating supplies	605		824		2,013		2,588
Amortization of intangibles	3,332		3,362		10,008		10,144
Branch right sizing expense	(3,280)		442		(2,187)		2,401
Other expense	8,149		7,478		22,008		23,676
Total other operating expenses	$	34,565	$	35,807	$	107,826	$	113,154

_________________________

(1)    During the second and third quarters of 2021, certain debit and credit card transaction fees were reclassified from non-interest expense to non-interest income. Prior periods have been adjusted to reflect this reclassification.

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Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2021

Fair Value Disclosures [Abstract]

Financial Instruments Measured on Recurring Basis

The following table sets forth the Company’s financial assets by level within the fair value hierarchy that were measured at fair value on a recurring basis as of September 30, 2021 and December 31, 2020.

			Fair Value Measurements Using
(In thousands)	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
September 30, 2021
Available-for-sale securities
U.S. Treasury	$	300	$	300	$	—	$	—
U.S. Government agencies	354,382		—		354,382		—
Mortgage-backed securities	4,421,620		—		4,421,620		—
State and political subdivisions	1,575,208		—		1,575,208		—
Other securities	470,693		—		470,693		—
Mortgage loans held for sale	34,628		—		—		34,628
Derivative asset	31,609		—		31,609		—
Derivative liability	(17,825)		—		(17,825)		—
December 31, 2020
Available-for-sale securities
U.S. Government agencies	$	477,237	$	—	$	477,237	$	—
Mortgage-backed securities	1,394,936		—		1,394,936		—
States and political subdivisions	1,470,723		—		1,470,723		—
Other securities	130,702		—		130,702		—
Mortgage loans held for sale	137,378		—		—		137,378
Derivative asset	35,846		—		35,846		—
Other liabilities held for sale	(154,620)		—		—		(154,620)
Derivative liability	(36,141)		—		(36,141)		—

Financial Assets Measure on Nonrecurring Basis

The following table sets forth the Company’s financial assets by level within the fair value hierarchy that were measured at fair value on a nonrecurring basis as of September 30, 2021 and December 31, 2020. 

			Fair Value Measurements Using
(In thousands)	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
September 30, 2021
Individually assessed loans (1) (2) (collateral-dependent)	$	31,075	$	—	$	—	$	31,075
Foreclosed assets and other real estate owned (1)	2,661		—		—		2,661
December 31, 2020
Individually assessed loans (1) (2) (collateral-dependent)	$	66,209	$	—	$	—	$	66,209
Foreclosed assets and other real estate owned (1)	17,074		—		—		17,074

________________________

(1)These amounts represent the resulting carrying amounts on the consolidated balance sheets for collateral-dependent loans and foreclosed assets and other real estate owned for which fair value re-measurements took place during the period.

(2)Identified reserves of $2,129,000 and $13,725,000 were related to collateral-dependent loans for which fair value re-measurements took place during the periods ended September 30, 2021 and December 31, 2020, respectively.

Estimated Fair Values and Related Carrying Amounts

The estimated fair values, and related carrying amounts, of the Company’s financial instruments are as follows:

	Carrying		Fair Value Measurements
(In thousands)	Amount		Level 1		Level 2		Level 3		Total
September 30, 2021
Financial assets:
Cash and cash equivalents	$	1,781,413	$	1,781,413	$	—	$	—	$	1,781,413
Interest bearing balances due from banks - time	1,780		—		1,780		—		1,780
Held-to-maturity securities	1,516,797		—		1,487,916		—		1,487,916
Interest receivable	68,405		—		68,405		—		68,405
Loans, net	10,622,719		—		—		10,705,185		10,705,185
Financial liabilities:
Non-interest bearing transaction accounts	4,918,845		—		4,918,845		—		4,918,845
Interest bearing transaction accounts and savings deposits	10,697,451		—		10,697,451		—		10,697,451
Time deposits	2,455,774		—		—		2,460,441		2,460,441
Federal funds purchased and securities sold under agreements to repurchase	217,276		—		217,276		—		217,276
Other borrowings	1,338,585		—		1,408,087		—		1,408,087
Subordinated notes and debentures	383,278		—		395,786		—		395,786
Interest payable	11,230		—		11,230		—		11,230
December 31, 2020
Financial assets:
Cash and cash equivalents	$	3,472,152	$	3,472,152	$	—	$	—	$	3,472,152
Interest bearing balances due from banks - time	1,579		—		1,579		—		1,579
Held-to-maturity securities	333,031		—		341,925		—		341,925
Interest receivable	72,597		—		72,597		—		72,597
Loans, net	12,662,847		—		—		12,736,991		12,736,991
Financial liabilities:
Non-interest bearing transaction accounts	4,482,091		—		4,482,091		—		4,482,091
Interest bearing transaction accounts and savings deposits	9,672,608		—		9,672,608		—		9,672,608
Time deposits	2,832,327		—		—		2,848,621		2,848,621
Federal funds purchased and securities sold under agreements to repurchase	299,111		—		299,111		—		299,111
Other borrowings	1,342,067		—		1,448,625		—		1,448,625
Subordinated notes and debentures	382,874		—		398,827		—		398,827
Interest payable	8,887		—		8,887		—		8,887

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Derivative Instruments (Tables)

9 Months Ended

Sep. 30, 2021

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value

The following table summarizes the fair value hedges recorded in the accompanying consolidated balance sheets.

				September 30, 2021				December 31, 2020
(In thousands)	Balance Sheet Location	Weighted Average Pay Rate	Receive Rate	Notional		Fair Value		Notional		Fair Value
Derivative assets	Other assets	1.21%	Federal Funds	$	1,001,715	$	13,948	$	—	$	—

The following table summarizes the fair values of loan derivative contracts recorded in the accompanying consolidated balance sheets.

	September 30, 2021				December 31, 2020
(In thousands)	Notional		Fair Value		Notional		Fair Value
Derivative assets	$	316,357	$	17,661	$	408,881	$	35,846
Derivative liabilities	320,001		17,825		417,941		36,141

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Preparation of Interim Financial Statements (Details) $ in Thousands	Jan. 01, 2020 USD ($)	Sep. 30, 2021 USD ($) financial_center	Dec. 31, 2020 USD ($)
Lessee, Lease, Description [Line Items]
Number of financial centers | financial_center		185
Allowance for credit loss		$ 202,508	$ 238,050
Unfunded commitments, allowance for credit loss		22,400	22,400
Cumulative effect on retained earnings		$ 1,065,566	$ 901,006
Cumulative Effect, Period of Adoption, Adjustment
Lessee, Lease, Description [Line Items]
Allowance for credit loss	$ 151,400
Unfunded commitments, allowance for credit loss	24,000
Debt securities, allowance for credit loss	742
Cumulative effect on retained earnings	128,100
Purchased with credit deterioration, allowance for credit loss	$ 5,400

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Acquisitions (Subsequent Event) - Textual (Details)	Jun. 04, 2021 USD ($) branch shares	Sep. 30, 2021 USD ($)
Landmark Community Bank
Business Acquisition [Line Items]
Shares issued (in shares) | shares	4,499,872
Payments to acquire businesses, gross	$ 6,451,727.43
Number of bank branches acquired | branch	8
Assets acquired		$ 978,800,000
Loans acquired		784,400,000
Deposits acquired		813,300,000
Triumph Bancshares
Business Acquisition [Line Items]
Shares issued (in shares) | shares	4,164,712
Payments to acquire businesses, gross	$ 1,693,402.93
Number of bank branches acquired | branch	6
Assets acquired		855,300,000
Loans acquired		708,000,000
Deposits acquired		$ 724,000,000

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Investment Securities - Summary of Investment Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Jun. 30, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Dec. 31, 2019
Held-to-maturity
Amortized Cost	$ 1,518,076		$ 335,946
Allowance for credit losses on HTM	(1,279)	$ (1,132)	(2,915)	$ (373)	$ (307)	$ 0
Net Carrying Amount	1,516,797		333,031
Gross Unrealized Gains	2,623		8,924
Gross Unrealized (Losses)	(31,504)		(30)
Estimated Fair Value	1,487,916		341,925
Available-for-sale
Amortized Cost	6,838,743		3,397,043
Allowance for credit losses on AFS	0	0	(312)	(1,208)	(609)	0
Gross Unrealized Gains	40,581		79,663
Gross Unrealized (Losses)	(57,121)		(2,796)
Estimated Fair Value	6,822,203		3,473,598
U.S. Treasury
Available-for-sale
Amortized Cost	300
Allowance for credit losses on AFS	0
Gross Unrealized Gains	0
Gross Unrealized (Losses)	0
Estimated Fair Value	300
U.S. Government agencies
Held-to-maturity
Amortized Cost	232,549
Allowance for credit losses on HTM	0
Net Carrying Amount	232,549
Gross Unrealized Gains	0
Gross Unrealized (Losses)	(5,179)
Estimated Fair Value	227,370
Available-for-sale
Amortized Cost	361,452		477,693
Allowance for credit losses on AFS	0		0
Gross Unrealized Gains	635		844
Gross Unrealized (Losses)	(7,705)		(1,300)
Estimated Fair Value	354,382		477,237
Mortgage-backed securities
Held-to-maturity
Amortized Cost	57,930		22,354
Allowance for credit losses on HTM	0		0
Net Carrying Amount	57,930		22,354
Gross Unrealized Gains	417		683
Gross Unrealized (Losses)	(1,024)		0
Estimated Fair Value	57,323		23,037
Available-for-sale
Amortized Cost	4,434,981		1,374,769
Allowance for credit losses on AFS	0		0
Gross Unrealized Gains	14,741		21,261
Gross Unrealized (Losses)	(28,102)		(1,094)
Estimated Fair Value	4,421,620		1,394,936
State and political subdivisions
Held-to-maturity
Amortized Cost	1,210,287		312,416
Allowance for credit losses on HTM	(1,196)	(871)	(2,307)	(73)	(95)	0
Net Carrying Amount	1,209,091		310,109
Gross Unrealized Gains	2,206		8,148
Gross Unrealized (Losses)	(24,962)		(30)
Estimated Fair Value	1,186,335		318,227
Available-for-sale
Amortized Cost	1,574,674		1,416,136
Allowance for credit losses on AFS	0	0	(217)	(1,148)	(371)	0
Gross Unrealized Gains	17,877		55,111
Gross Unrealized (Losses)	(17,343)		(307)
Estimated Fair Value	1,575,208		1,470,723
Other securities
Held-to-maturity
Amortized Cost	17,310		1,176
Allowance for credit losses on HTM	(83)	(261)	(608)	(300)	(212)	0
Net Carrying Amount	17,227		568
Gross Unrealized Gains	0		93
Gross Unrealized (Losses)	(339)		0
Estimated Fair Value	16,888		661
Available-for-sale
Amortized Cost	467,336		128,445
Allowance for credit losses on AFS	0	$ 0	(95)	$ (60)	$ (238)	$ 0
Gross Unrealized Gains	7,328		2,447
Gross Unrealized (Losses)	(3,971)		(95)
Estimated Fair Value	$ 470,693		$ 130,702

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Investment Securities - Textual (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Jun. 30, 2021	Dec. 31, 2020	Jun. 30, 2020	Dec. 31, 2019
Debt Securities, Available-for-sale [Line Items]
Debt securities, available-for-sale, transfer to held-to-maturity	$ 500,800,000
Amortization of securities transferred from available for sale to held to maturity	1,106,000	$ 0	$ 1,106,000	$ 0
Available-for-sale, transfer to held-to-maturity, gain (loss)	0
Held to maturity mortgage backed securities	1,518,076,000		1,518,076,000			$ 335,946,000
Available for sale mortgage backed securities	6,838,743,000		6,838,743,000			3,397,043,000
Held-to-maturity, interest receivable	8,300,000		8,300,000
Available-for-sale, interest receivable	20,900,000		20,900,000
Available-for-sale securities	6,822,203,000		6,822,203,000			3,473,598,000
Securities valued at less than historical cost, amount	$ 3,840,900,000		$ 3,840,900,000
Securities valued at less than historical cost (as percent)	56.30%		56.30%
Decrease in available-for-sale provision for credit losses	$ 0	602,000	$ (312,000)	836,000
Provision for credit losses		599,000		835,000
Allowance for credit losses on HTM	1,279,000	373,000	1,279,000	373,000	$ 1,132,000	2,915,000	$ 307,000	$ 0
Securities pledged as collateral	3,690,000,000		3,690,000,000			2,010,000,000.00
Realized gains	5,300,000	22,300,000	15,900,000	54,800,000
Realized losses	(24,500)	(1,700)	(63,600)	$ 4,400
Investments sold, amount		1,700,000,000	$ 342,600,000
Income tax benefit related to security gains (losses) (as percent)			26.135%	26.135%
Commercial Mortgage Backed Securities
Debt Securities, Available-for-sale [Line Items]
Held to maturity mortgage backed securities	5,400,000		$ 5,400,000			7,700,000
Available for sale mortgage backed securities	1,560,000,000		1,560,000,000			406,100,000
Residential Mortgage Backed Securities
Debt Securities, Available-for-sale [Line Items]
Held to maturity mortgage backed securities	52,500,000		52,500,000			14,700,000
Available for sale mortgage backed securities	2,860,000,000		2,860,000,000			988,800,000
State and political subdivisions
Debt Securities, Available-for-sale [Line Items]
Held to maturity mortgage backed securities	1,210,287,000		1,210,287,000			312,416,000
Available for sale mortgage backed securities	1,574,674,000		1,574,674,000			1,416,136,000
Available-for-sale securities	1,575,208,000		1,575,208,000			1,470,723,000
Securities valued at less than historical cost, amount	992,492,000		992,492,000
Allowance for credit losses on HTM	1,196,000	$ 73,000	1,196,000	$ 73,000	$ 871,000	$ 2,307,000	$ 95,000	$ 0
State and political subdivisions | Other Credit Enhancement or Insurance
Debt Securities, Available-for-sale [Line Items]
Held to maturity mortgage backed securities	531,863,000		531,863,000
Allowance for credit losses on HTM	$ 0		$ 0

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Investment Securities - Securities With Unrealized Losses (Details) $ in Thousands	Sep. 30, 2021 USD ($)
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, less than 12 months, estimated fair value	$ 3,659,613
Available-for-sale, less than 12 months, gross unrealized losses	(51,166)
Available-for-sale, 12 months or more, estimated fair value	181,287
Available-for-sale, 12 months or more, gross unrealized losses	(5,955)
Available-for-sale, total, estimated fair value	3,840,900
Available-for-sale, total, gross unrealized losses	(57,121)
U.S. Government agencies
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, less than 12 months, estimated fair value	190,275
Available-for-sale, less than 12 months, gross unrealized losses	(3,759)
Available-for-sale, 12 months or more, estimated fair value	111,662
Available-for-sale, 12 months or more, gross unrealized losses	(3,946)
Available-for-sale, total, estimated fair value	301,937
Available-for-sale, total, gross unrealized losses	(7,705)
Mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, less than 12 months, estimated fair value	2,342,244
Available-for-sale, less than 12 months, gross unrealized losses	(27,380)
Available-for-sale, 12 months or more, estimated fair value	46,253
Available-for-sale, 12 months or more, gross unrealized losses	(722)
Available-for-sale, total, estimated fair value	2,388,497
Available-for-sale, total, gross unrealized losses	(28,102)
State and political subdivisions
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, less than 12 months, estimated fair value	969,120
Available-for-sale, less than 12 months, gross unrealized losses	(16,056)
Available-for-sale, 12 months or more, estimated fair value	23,372
Available-for-sale, 12 months or more, gross unrealized losses	(1,287)
Available-for-sale, total, estimated fair value	992,492
Available-for-sale, total, gross unrealized losses	(17,343)
Other securities
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, less than 12 months, estimated fair value	157,974
Available-for-sale, less than 12 months, gross unrealized losses	(3,971)
Available-for-sale, 12 months or more, estimated fair value	0
Available-for-sale, 12 months or more, gross unrealized losses	0
Available-for-sale, total, estimated fair value	157,974
Available-for-sale, total, gross unrealized losses	$ (3,971)

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Investment Securities - Allowance for Credit Losses HTM (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]
Beginning balance	$ 1,132	$ 307	$ 2,915	$ 0
Provision for credit loss expense	0	66	(1,183)	4
Securities charged-off			(600)
Recoveries	147		147
Ending balance	1,279	373	1,279	373
State and political subdivisions
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]
Beginning balance	871	95	2,307	0
Provision for credit loss expense	325	(22)	(1,111)	15
Securities charged-off			0
Recoveries	0		0
Ending balance	1,196	73	1,196	73
Other securities
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]
Beginning balance	261	212	608	0
Provision for credit loss expense	(325)	88	(72)	(11)
Securities charged-off			(600)
Recoveries	147		147
Ending balance	$ 83	$ 300	$ 83	300
Cumulative Effect, Period of Adoption, Adjustment
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]
Beginning balance				369
Cumulative Effect, Period of Adoption, Adjustment | State and political subdivisions
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]
Beginning balance				58
Cumulative Effect, Period of Adoption, Adjustment | Other securities
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]
Beginning balance				$ 311

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Investment Securities - Allowance for Credit Losses AFS (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Debt Securities, Available-for-sale, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 0	$ 609	$ 312	$ 0
Credit losses on securities not previously recorded		1,160		1,208
Reduction due to sales		(294)	(11)	(244)
Net decrease in allowance on previously impaired securities	0	(267)	(301)	(129)
Ending balance	0	1,208	0	1,208
Cumulative Effect, Period of Adoption, Adjustment
Debt Securities, Available-for-sale, Allowance for Credit Loss [Roll Forward]
Beginning balance				373
State and political subdivisions
Debt Securities, Available-for-sale, Allowance for Credit Loss [Roll Forward]
Beginning balance	0	371	217	0
Credit losses on securities not previously recorded		1,137		1,130
Reduction due to sales		(294)	0	(244)
Net decrease in allowance on previously impaired securities	0	(66)	(217)	(111)
Ending balance	0	1,148	0	1,148
State and political subdivisions | Cumulative Effect, Period of Adoption, Adjustment
Debt Securities, Available-for-sale, Allowance for Credit Loss [Roll Forward]
Beginning balance				373
Other securities
Debt Securities, Available-for-sale, Allowance for Credit Loss [Roll Forward]
Beginning balance	0	238	95	0
Credit losses on securities not previously recorded		23		78
Reduction due to sales		0	(11)	0
Net decrease in allowance on previously impaired securities	0	(201)	(84)	(18)
Ending balance	$ 0	$ 60	$ 0	60
Other securities | Cumulative Effect, Period of Adoption, Adjustment
Debt Securities, Available-for-sale, Allowance for Credit Loss [Roll Forward]
Beginning balance				$ 0

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Investment Securities - Credit Quality Indicator (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Amortized Cost	$ 1,518,076	$ 335,946
State and political subdivisions
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Amortized Cost	1,210,287	312,416
Other securities
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Amortized Cost	17,310	$ 1,176
Aaa/AAA | State and political subdivisions
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Amortized Cost	245,157
Aaa/AAA | Other securities
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Amortized Cost	0
Aa/AA | State and political subdivisions
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Amortized Cost	804,154
Aa/AA | Other securities
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Amortized Cost	0
A | State and political subdivisions
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Amortized Cost	127,661
A | Other securities
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Amortized Cost	0
Baa/BBB | State and political subdivisions
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Amortized Cost	11,351
Baa/BBB | Other securities
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Amortized Cost	0
Not Rated | State and political subdivisions
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Amortized Cost	21,964
Not Rated | Other securities
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Amortized Cost	17,310
Not Guaranteed or Pre-Refunded | State and political subdivisions
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Amortized Cost	678,424
Not Guaranteed or Pre-Refunded | Aaa/AAA | State and political subdivisions
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Amortized Cost	130,326
Not Guaranteed or Pre-Refunded | Aa/AA | State and political subdivisions
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Amortized Cost	495,498
Not Guaranteed or Pre-Refunded | A | State and political subdivisions
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Amortized Cost	45,229
Not Guaranteed or Pre-Refunded | Baa/BBB | State and political subdivisions
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Amortized Cost	1,049
Not Guaranteed or Pre-Refunded | Not Rated | State and political subdivisions
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Amortized Cost	6,322
Other Credit Enhancement or Insurance | State and political subdivisions
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Amortized Cost	531,863
Other Credit Enhancement or Insurance | Aaa/AAA | State and political subdivisions
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Amortized Cost	114,831
Other Credit Enhancement or Insurance | Aa/AA | State and political subdivisions
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Amortized Cost	308,656
Other Credit Enhancement or Insurance | A | State and political subdivisions
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Amortized Cost	82,432
Other Credit Enhancement or Insurance | Baa/BBB | State and political subdivisions
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Amortized Cost	10,302
Other Credit Enhancement or Insurance | Not Rated | State and political subdivisions
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Amortized Cost	15,642
Pre-Refunded | State and political subdivisions
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Amortized Cost	0
Pre-Refunded | Aaa/AAA | State and political subdivisions
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Amortized Cost	0
Pre-Refunded | Aa/AA | State and political subdivisions
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Amortized Cost	0
Pre-Refunded | A | State and political subdivisions
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Amortized Cost	0
Pre-Refunded | Baa/BBB | State and political subdivisions
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Amortized Cost	0
Pre-Refunded | Not Rated | State and political subdivisions
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Amortized Cost	$ 0

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Investment Securities - Income Earned on Securities (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Non-taxable:
Total	$ 30,717	$ 14,910	$ 79,418	$ 47,326
Held-to-maturity
Taxable:
Taxable	1,127	256	2,477	715
Non-taxable:
Non-taxable	4,853	65	9,887	205
Available-for-sale
Taxable:
Taxable	15,949	6,937	39,313	26,604
Non-taxable:
Non-taxable	$ 8,788	$ 7,652	$ 27,741	$ 19,802

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Investment Securities - Maturities of Investment Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Investments, Debt and Equity Securities [Abstract]
Held-to-maturity, amortized cost, one year or less	$ 5,644
Held-to-maturity, amortized cost, after one through five years	7,676
Held-to-maturity, amortized cost, after five through ten years	27,094
Held-to-maturity, amortized cost, after ten years	1,419,732
Held-to-maturity, amortized cost, securities not due on a single maturity date	57,930
Amortized Cost	1,518,076	$ 335,946
Held-to-maturity, fair value, one year or less	5,678
Held-to-maturity, fair value, after one through five years	7,993
Held-to-maturity, fair value, after five through ten years	26,019
Held-to-maturity, fair value, after ten years	1,390,903
Held-to-maturity, fair value, securities not due on a single maturity date	57,323
Held-to-maturity, fair value, total	1,487,916	341,925
Available-for-sale, amortized cost, one year or less	8,385
Available-for-sale, amortized cost, after one through five years	53,515
Available-for-sale, amortized cost, after five through ten years	487,966
Available-for-sale, amortized cost, after ten years	1,853,165
Available-for-sale, amortized cost, securities not due on a single maturity date	4,434,981
Available-for-sale, amortized cost, other securities (no maturity)	731
Amortized Cost	6,838,743	3,397,043
Available-for-sale, fair value, one year or less	8,423
Available-for-sale, fair value, after one through five years	54,008
Available-for-sale, fair value, after five through ten years	492,654
Available-for-sale, fair value, after ten years	1,844,768
Available-for-sale, fair value, securities not due on a single maturity date	4,421,620
Available-for-sale, fair value, other securities (no maturity)	730
Available-for-sale, fair value, total	$ 6,822,203	$ 3,473,598

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Other Liabilities Held for Sale (Details)	9 Months Ended
	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Mar. 12, 2021 USD ($) branch
Business Acquisition [Line Items]
Gain on sale of business	$ 5,300,000	$ 8,100,000
Disposal Group, Held-for-sale, Not Discontinued Operations
Business Acquisition [Line Items]
Other liabilities held-for-sale	0
Disposal Group, Held-for-sale, Not Discontinued Operations | Illinois Branches
Business Acquisition [Line Items]
Number of branches sold | branch			4
Loans held for sale			$ 354,000
Deposits held for sale			$ 137,900,000
Gain on sale of business	$ 5,300,000

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Loans and Allowance for Credit Losses - Textual (Details)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2021 USD ($)	Jun. 30, 2020 USD ($) loan	Sep. 30, 2021 USD ($) loan	Sep. 30, 2020 USD ($) loan	Dec. 31, 2020 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 10,825,227,000		$ 10,825,227,000		$ 12,900,897,000
Premiums and discounts associated with acquired loans			29,400,000		57,300,000
Financing receivable, accrued interest excluded from amortized costs	39,200,000		39,200,000		54,400,000
Nonaccrual loans with no allowance for credit loss	20,200,000		$ 20,200,000		16,800,000
Number of loan modifications | loan			1	5
Balance prior to TDR			$ 784,000	$ 1,900,000
Foreclosed assets and other real estate owned	11,759,000		11,759,000		18,393,000
Financing receivable, collateral dependent, amount	42,091,000		42,091,000
Number of energy credits | loan		4
Unfunded commitments, allowance for credit loss	22,400,000		22,400,000		22,400,000
Off-balance sheet, credit loss, liability, credit loss expense (reversal)	0		$ 0	$ (8,000,000)
Minimum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, term of loan			1 year
Maximum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, term of loan			3 years
Extended Maturity and Payment Deferral | COVID-19 Pandemic
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loan modifications | loan			35
Troubled debt, balance	82,000,000		$ 82,000,000
Residential Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans in process of foreclosure, amount	2,900,000		2,900,000		7,200,000
Energy
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, collateral dependent, amount	0		0
OREO Received in Full or Partial Satisfaction of Loans | Residential Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Foreclosed assets and other real estate owned	1,600,000		1,600,000		3,200,000
Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	8,079,343,000		$ 8,079,343,000		9,223,791,000
Number of loan modifications | loan			1	5
Balance prior to TDR			$ 784,000	$ 1,948,000
Real Estate | OREO Received in Full or Partial Satisfaction of Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Balance prior to TDR			0	$ 0
Single family residential | Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	1,540,701,000		1,540,701,000		1,880,673,000
Number of loan modifications | loan				5
Balance prior to TDR				$ 1,948,000
Allowance for credit losses on loans				$ 16,600
Financing receivable, collateral dependent, amount	2,921,000		2,921,000
Single family residential | Real Estate | Energy
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, collateral dependent, amount	0		$ 0
Commercial real estate | Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loans with subsequent default | loan			0	0
Other commercial | Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	5,308,902,000		$ 5,308,902,000		5,746,863,000
Number of loan modifications | loan			1
Balance prior to TDR			$ 784,000
Allowance for credit losses on loans	5,100		5,100
Financing receivable, collateral dependent, amount	31,672,000		31,672,000
Other commercial | Real Estate | Energy
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, collateral dependent, amount	0		0
Charge-offs		$ 32,600,000
Paycheck Protection Program Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 212,100,000		$ 212,100,000		$ 904,700,000

XML

Loans and Allowance for Credit Losses - Loan Portfolio by Categories (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Loans and Leases Receivable Disclosure [Line Items]
Loans	$ 10,825,227	$ 12,900,897
Consumer
Loans and Leases Receivable Disclosure [Line Items]
Loans	358,376	391,224
Consumer | Credit cards
Loans and Leases Receivable Disclosure [Line Items]
Loans	175,884	188,845
Consumer | Other consumer
Loans and Leases Receivable Disclosure [Line Items]
Loans	182,492	202,379
Real Estate
Loans and Leases Receivable Disclosure [Line Items]
Loans	8,079,343	9,223,791
Real Estate | Construction and development
Loans and Leases Receivable Disclosure [Line Items]
Loans	1,229,740	1,596,255
Real Estate | Single family residential
Loans and Leases Receivable Disclosure [Line Items]
Loans	1,540,701	1,880,673
Real Estate | Other commercial
Loans and Leases Receivable Disclosure [Line Items]
Loans	5,308,902	5,746,863
Commercial
Loans and Leases Receivable Disclosure [Line Items]
Loans	2,038,640	2,750,291
Commercial | Commercial
Loans and Leases Receivable Disclosure [Line Items]
Loans	1,821,905	2,574,386
Commercial | Agricultural
Loans and Leases Receivable Disclosure [Line Items]
Loans	216,735	175,905
Other
Loans and Leases Receivable Disclosure [Line Items]
Loans	$ 348,868	$ 535,591

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Loans and Allowance for Credit Losses - Nonaccrual Loans, Excluding Loans Acquired, Segregated by Class of Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Financing Receivable, Past Due [Line Items]
Loans in nonaccrual status	$ 59,054	$ 122,879
Consumer
Financing Receivable, Past Due [Line Items]
Loans in nonaccrual status	781	1,520
Consumer | Credit cards
Financing Receivable, Past Due [Line Items]
Loans in nonaccrual status	390	301
Consumer | Other consumer
Financing Receivable, Past Due [Line Items]
Loans in nonaccrual status	391	1,219
Real Estate
Financing Receivable, Past Due [Line Items]
Loans in nonaccrual status	41,236	55,842
Real Estate | Construction and development
Financing Receivable, Past Due [Line Items]
Loans in nonaccrual status	2,330	3,625
Real Estate | Single family residential
Financing Receivable, Past Due [Line Items]
Loans in nonaccrual status	21,068	28,062
Real Estate | Other commercial
Financing Receivable, Past Due [Line Items]
Loans in nonaccrual status	17,838	24,155
Commercial
Financing Receivable, Past Due [Line Items]
Loans in nonaccrual status	17,037	65,517
Commercial | Commercial
Financing Receivable, Past Due [Line Items]
Loans in nonaccrual status	16,532	65,244
Commercial | Agricultural
Financing Receivable, Past Due [Line Items]
Loans in nonaccrual status	$ 505	$ 273

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Loans and Allowance for Credit Losses - Age Analysis of Past Due Loans, Excluding Loans Acquired, Segregated by Class of Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Financing Receivable, Past Due [Line Items]
Loans	$ 10,825,227	$ 12,900,897
90 Days Past Due & Accruing	334	578
Gross 30-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	15,646	39,072
90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Loans	27,820	35,188
Financial Asset, Past Due
Financing Receivable, Past Due [Line Items]
Loans	43,466	74,260
Current
Financing Receivable, Past Due [Line Items]
Loans	10,781,761	12,826,637
Consumer
Financing Receivable, Past Due [Line Items]
Loans	358,376	391,224
90 Days Past Due & Accruing	155	269
Consumer | Gross 30-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	1,676	3,479
Consumer | 90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Loans	343	558
Consumer | Financial Asset, Past Due
Financing Receivable, Past Due [Line Items]
Loans	2,019	4,037
Consumer | Current
Financing Receivable, Past Due [Line Items]
Loans	356,357	387,187
Consumer | Credit cards
Financing Receivable, Past Due [Line Items]
Loans	175,884	188,845
90 Days Past Due & Accruing	154	256
Consumer | Credit cards | Gross 30-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	751	708
Consumer | Credit cards | 90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Loans	253	256
Consumer | Credit cards | Financial Asset, Past Due
Financing Receivable, Past Due [Line Items]
Loans	1,004	964
Consumer | Credit cards | Current
Financing Receivable, Past Due [Line Items]
Loans	174,880	187,881
Consumer | Other consumer
Financing Receivable, Past Due [Line Items]
Loans	182,492	202,379
90 Days Past Due & Accruing	1	13
Consumer | Other consumer | Gross 30-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	925	2,771
Consumer | Other consumer | 90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Loans	90	302
Consumer | Other consumer | Financial Asset, Past Due
Financing Receivable, Past Due [Line Items]
Loans	1,015	3,073
Consumer | Other consumer | Current
Financing Receivable, Past Due [Line Items]
Loans	181,477	199,306
Real Estate
Financing Receivable, Past Due [Line Items]
Loans	8,079,343	9,223,791
90 Days Past Due & Accruing	80	253
Real Estate | Gross 30-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	11,693	27,761
Real Estate | 90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Loans	20,379	27,014
Real Estate | Financial Asset, Past Due
Financing Receivable, Past Due [Line Items]
Loans	32,072	54,775
Real Estate | Current
Financing Receivable, Past Due [Line Items]
Loans	8,047,271	9,169,016
Real Estate | Construction and development
Financing Receivable, Past Due [Line Items]
Loans	1,229,740	1,596,255
90 Days Past Due & Accruing	5	0
Real Estate | Construction and development | Gross 30-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	2,854	1,375
Real Estate | Construction and development | 90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Loans	605	3,089
Real Estate | Construction and development | Financial Asset, Past Due
Financing Receivable, Past Due [Line Items]
Loans	3,459	4,464
Real Estate | Construction and development | Current
Financing Receivable, Past Due [Line Items]
Loans	1,226,281	1,591,791
Real Estate | Single family residential
Financing Receivable, Past Due [Line Items]
Loans	1,540,701	1,880,673
90 Days Past Due & Accruing	75	253
Real Estate | Single family residential | Gross 30-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	6,546	23,726
Real Estate | Single family residential | 90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Loans	6,154	14,339
Real Estate | Single family residential | Financial Asset, Past Due
Financing Receivable, Past Due [Line Items]
Loans	12,700	38,065
Real Estate | Single family residential | Current
Financing Receivable, Past Due [Line Items]
Loans	1,528,001	1,842,608
Real Estate | Other commercial
Financing Receivable, Past Due [Line Items]
Loans	5,308,902	5,746,863
90 Days Past Due & Accruing	0	0
Real Estate | Other commercial | Gross 30-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	2,293	2,660
Real Estate | Other commercial | 90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Loans	13,620	9,586
Real Estate | Other commercial | Financial Asset, Past Due
Financing Receivable, Past Due [Line Items]
Loans	15,913	12,246
Real Estate | Other commercial | Current
Financing Receivable, Past Due [Line Items]
Loans	5,292,989	5,734,617
Commercial
Financing Receivable, Past Due [Line Items]
Loans	2,038,640	2,750,291
90 Days Past Due & Accruing	99	56
Commercial | Gross 30-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	2,270	7,740
Commercial | 90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Loans	7,098	7,616
Commercial | Financial Asset, Past Due
Financing Receivable, Past Due [Line Items]
Loans	9,368	15,356
Commercial | Current
Financing Receivable, Past Due [Line Items]
Loans	2,029,272	2,734,935
Commercial | Commercial
Financing Receivable, Past Due [Line Items]
Loans	1,821,905	2,574,386
90 Days Past Due & Accruing	99	56
Commercial | Commercial | Gross 30-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	2,130	7,514
Commercial | Commercial | 90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Loans	6,639	7,429
Commercial | Commercial | Financial Asset, Past Due
Financing Receivable, Past Due [Line Items]
Loans	8,769	14,943
Commercial | Commercial | Current
Financing Receivable, Past Due [Line Items]
Loans	1,813,136	2,559,443
Commercial | Agricultural
Financing Receivable, Past Due [Line Items]
Loans	216,735	175,905
90 Days Past Due & Accruing	0	0
Commercial | Agricultural | Gross 30-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	140	226
Commercial | Agricultural | 90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Loans	459	187
Commercial | Agricultural | Financial Asset, Past Due
Financing Receivable, Past Due [Line Items]
Loans	599	413
Commercial | Agricultural | Current
Financing Receivable, Past Due [Line Items]
Loans	216,136	175,492
Other
Financing Receivable, Past Due [Line Items]
Loans	348,868	535,591
90 Days Past Due & Accruing	0	0
Other | Gross 30-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	7	92
Other | 90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Loans	0	0
Other | Financial Asset, Past Due
Financing Receivable, Past Due [Line Items]
Loans	7	92
Other | Current
Financing Receivable, Past Due [Line Items]
Loans	$ 348,861	$ 535,499

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Loans and Allowance for Credit Losses - Troubled Debt Restructurings, Excluding Loans Acquired, Segregated by Class of Loans (Details) $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 30, 2021 USD ($) loan	Sep. 30, 2020 loan	Dec. 31, 2020 USD ($) loan
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of loan modifications	1	5
Extended Maturity and Payment Deferral | COVID-19 Pandemic
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of loan modifications	35
Troubled debt, balance | $	$ 82,000
Loans, Excluding Acquired Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of loan modifications	47		54
Troubled debt, balance | $	$ 6,801		$ 7,513
Loans, Excluding Acquired Loans | Accruing TDR Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of loan modifications	32		32
Troubled debt, balance | $	$ 4,251		$ 3,138
Loans, Excluding Acquired Loans | Nonaccrual TDR Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of loan modifications	15		22
Troubled debt, balance | $	$ 2,550		$ 4,375
Real Estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of loan modifications	1	5
Real Estate | Loans, Excluding Acquired Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of loan modifications	43		48
Troubled debt, balance | $	$ 4,956		$ 5,260
Real Estate | Loans, Excluding Acquired Loans | Accruing TDR Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of loan modifications	30		29
Troubled debt, balance | $	$ 3,814		$ 2,512
Real Estate | Loans, Excluding Acquired Loans | Nonaccrual TDR Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of loan modifications	13		19
Troubled debt, balance | $	$ 1,142		$ 2,748
Real Estate | Single family residential
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of loan modifications		5
Real Estate | Single family residential | Loans, Excluding Acquired Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of loan modifications	40		46
Troubled debt, balance | $	$ 4,135		$ 5,199
Real Estate | Single family residential | Loans, Excluding Acquired Loans | Accruing TDR Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of loan modifications	28		28
Troubled debt, balance | $	$ 2,994		$ 2,463
Real Estate | Single family residential | Loans, Excluding Acquired Loans | Nonaccrual TDR Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of loan modifications	12		18
Troubled debt, balance | $	$ 1,141		$ 2,736
Real Estate | Other commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of loan modifications	1
Real Estate | Other commercial | Loans, Excluding Acquired Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of loan modifications	3		2
Troubled debt, balance | $	$ 821		$ 61
Real Estate | Other commercial | Loans, Excluding Acquired Loans | Accruing TDR Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of loan modifications	2		1
Troubled debt, balance | $	$ 820		$ 49
Real Estate | Other commercial | Loans, Excluding Acquired Loans | Nonaccrual TDR Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of loan modifications	1		1
Troubled debt, balance | $	$ 1		$ 12
Commercial | Loans, Excluding Acquired Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of loan modifications	4		6
Troubled debt, balance | $	$ 1,845		$ 2,253
Commercial | Loans, Excluding Acquired Loans | Accruing TDR Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of loan modifications	2		3
Troubled debt, balance | $	$ 437		$ 626
Commercial | Loans, Excluding Acquired Loans | Nonaccrual TDR Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of loan modifications	2		3
Troubled debt, balance | $	$ 1,408		$ 1,627
Commercial | Commercial | Loans, Excluding Acquired Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of loan modifications	4		6
Troubled debt, balance | $	$ 1,845		$ 2,253
Commercial | Commercial | Loans, Excluding Acquired Loans | Accruing TDR Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of loan modifications	2		3
Troubled debt, balance | $	$ 437		$ 626
Commercial | Commercial | Loans, Excluding Acquired Loans | Nonaccrual TDR Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of loan modifications	2		3
Troubled debt, balance | $	$ 1,408		$ 1,627

XML

Loans and Allowance for Credit Losses - Loans Restructured as TDRs, Excluding Loans Acquired, Segregated by Class of Loans (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2021 USD ($) loan	Sep. 30, 2020 USD ($) loan
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of loans | loan	1	5
Balance Prior to TDR	$ 784	$ 1,900
Real Estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of loans | loan	1	5
Balance Prior to TDR	$ 784	$ 1,948
Balance	778	1,896
Financial Impact on Date of Restructure	0	0
Real Estate | Change in Maturity Date
Financing Receivable, Troubled Debt Restructuring [Line Items]
Balance	0	1,896
Real Estate | Change in Rate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Balance	$ 778	$ 0
Real Estate | Other commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of loans | loan	1
Balance Prior to TDR	$ 784
Balance	778
Financial Impact on Date of Restructure	0
Real Estate | Other commercial | Change in Maturity Date
Financing Receivable, Troubled Debt Restructuring [Line Items]
Balance	0
Real Estate | Other commercial | Change in Rate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Balance	$ 778
Real Estate | Single family residential
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of loans | loan		5
Balance Prior to TDR		$ 1,948
Balance		1,896
Financial Impact on Date of Restructure		0
Real Estate | Single family residential | Change in Maturity Date
Financing Receivable, Troubled Debt Restructuring [Line Items]
Balance		1,896
Real Estate | Single family residential | Change in Rate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Balance		$ 0

XML

Loans and Allowance for Credit Losses - Loans by Credit Risk Rating, Segregated by Class of Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Financing Receivable, Credit Quality Indicator [Line Items]
Total	$ 10,825,227	$ 12,900,897
Loans other than pass or current
Financing Receivable, Credit Quality Indicator [Line Items]
2021 (YTD)	1,607,033	3,682,340
2020	1,535,869	1,019,712
2019	681,439	922,657
2018	678,561	913,379
2017	794,502	658,250
2016 and Prior	971,256	612,237
Lines of Credit (“LOC”) Amortized Cost Basis	4,213,000	4,725,168
LOC Converted to Term Loans Amortized Cost Basis	343,567	367,154
Total	10,825,227	12,900,897
Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total	358,376	391,224
Consumer | Credit cards
Financing Receivable, Credit Quality Indicator [Line Items]
Total	175,884	188,845
Consumer | Other consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total	182,492	202,379
Real Estate
Financing Receivable, Credit Quality Indicator [Line Items]
Total	8,079,343	9,223,791
Real Estate | Construction and development
Financing Receivable, Credit Quality Indicator [Line Items]
Total	1,229,740	1,596,255
Real Estate | Construction and development | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2021 (YTD)	47,644	165,990
2020	94,278	35,989
2019	33,487	31,279
2018	19,254	15,960
2017	12,848	9,233
2016 and Prior	10,030	4,807
Lines of Credit (“LOC”) Amortized Cost Basis	982,776	1,272,870
LOC Converted to Term Loans Amortized Cost Basis	21,429	23,251
Total	1,221,746	1,559,379
Real Estate | Construction and development | Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
2021 (YTD)	0	2,728
2020	0	344
2019	279	259
2018	0	2,107
2017	0	19
2016 and Prior	0	0
Lines of Credit (“LOC”) Amortized Cost Basis	0	9,613
LOC Converted to Term Loans Amortized Cost Basis	0	0
Total	279	15,070
Real Estate | Construction and development | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2021 (YTD)	1,801	294
2020	83	2,069
2019	146	404
2018	57	449
2017	328	342
2016 and Prior	674	320
Lines of Credit (“LOC”) Amortized Cost Basis	2,673	17,914
LOC Converted to Term Loans Amortized Cost Basis	1,953	14
Total	7,715	21,806
Real Estate | Construction and development | Doubtful and loss
Financing Receivable, Credit Quality Indicator [Line Items]
2021 (YTD)	0	0
2020	0	0
2019	0	0
2018	0	0
2017	0	0
2016 and Prior	0	0
Lines of Credit (“LOC”) Amortized Cost Basis	0	0
LOC Converted to Term Loans Amortized Cost Basis	0	0
Total	0	0
Real Estate | Construction and development | Risk rate 5, 6, and 7
Financing Receivable, Credit Quality Indicator [Line Items]
2021 (YTD)	49,445	169,012
2020	94,361	38,402
2019	33,912	31,942
2018	19,311	18,516
2017	13,176	9,594
2016 and Prior	10,704	5,127
Lines of Credit (“LOC”) Amortized Cost Basis	985,449	1,300,397
LOC Converted to Term Loans Amortized Cost Basis	23,382	23,265
Total	1,229,740	1,596,255
Real Estate | Single family residential
Financing Receivable, Credit Quality Indicator [Line Items]
Total	1,540,701	1,880,673
Real Estate | Other commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Total	5,308,902	5,746,863
Real Estate | Other commercial | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2021 (YTD)	712,198	1,563,245
2020	825,416	525,750
2019	361,642	375,303
2018	305,381	518,534
2017	484,230	372,679
2016 and Prior	549,452	284,098
Lines of Credit (“LOC”) Amortized Cost Basis	1,410,186	1,445,428
LOC Converted to Term Loans Amortized Cost Basis	217,398	181,949
Total	4,865,903	5,266,986
Real Estate | Other commercial | Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
2021 (YTD)	32,752	100,085
2020	57,067	4,346
2019	2,833	10,738
2018	7,666	19,943
2017	34,164	26,245
2016 and Prior	8,723	10,608
Lines of Credit (“LOC”) Amortized Cost Basis	91,572	63,305
LOC Converted to Term Loans Amortized Cost Basis	7,194	23,435
Total	241,971	258,705
Real Estate | Other commercial | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2021 (YTD)	33,001	66,737
2020	25,289	9,418
2019	6,172	24,380
2018	9,800	14,067
2017	33,130	3,744
2016 and Prior	22,630	11,158
Lines of Credit (“LOC”) Amortized Cost Basis	50,335	52,182
LOC Converted to Term Loans Amortized Cost Basis	20,671	39,486
Total	201,028	221,172
Real Estate | Other commercial | Doubtful and loss
Financing Receivable, Credit Quality Indicator [Line Items]
2021 (YTD)	0	0
2020	0	0
2019	0	0
2018	0	0
2017	0	0
2016 and Prior	0	0
Lines of Credit (“LOC”) Amortized Cost Basis	0	0
LOC Converted to Term Loans Amortized Cost Basis	0	0
Total	0	0
Real Estate | Other commercial | Risk rate 5, 6, and 7
Financing Receivable, Credit Quality Indicator [Line Items]
2021 (YTD)	777,951	1,730,067
2020	907,772	539,514
2019	370,647	410,421
2018	322,847	552,544
2017	551,524	402,668
2016 and Prior	580,805	305,864
Lines of Credit (“LOC”) Amortized Cost Basis	1,552,093	1,560,915
LOC Converted to Term Loans Amortized Cost Basis	245,263	244,870
Total	5,308,902	5,746,863
Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Total	2,038,640	2,750,291
Commercial | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Total	1,821,905	2,574,386
Commercial | Commercial | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2021 (YTD)	419,739	1,168,085
2020	212,161	154,740
2019	91,328	110,383
2018	66,078	65,757
2017	30,687	35,198
2016 and Prior	44,298	45,568
Lines of Credit (“LOC”) Amortized Cost Basis	852,103	803,751
LOC Converted to Term Loans Amortized Cost Basis	46,186	56,648
Total	1,762,580	2,440,130
Commercial | Commercial | Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
2021 (YTD)	0	5,707
2020	2,438	342
2019	569	465
2018	210	972
2017	252	54
2016 and Prior	384	0
Lines of Credit (“LOC”) Amortized Cost Basis	106	12,318
LOC Converted to Term Loans Amortized Cost Basis	11,016	22,546
Total	14,975	42,404
Commercial | Commercial | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2021 (YTD)	3,726	23,227
2020	18,934	4,495
2019	2,016	1,586
2018	1,512	730
2017	688	276
2016 and Prior	978	334
Lines of Credit (“LOC”) Amortized Cost Basis	10,048	53,682
LOC Converted to Term Loans Amortized Cost Basis	6,448	7,522
Total	44,350	91,852
Commercial | Commercial | Doubtful and loss
Financing Receivable, Credit Quality Indicator [Line Items]
2021 (YTD)	0	0
2020	0	0
2019	0	0
2018	0	0
2017	0	0
2016 and Prior	0	0
Lines of Credit (“LOC”) Amortized Cost Basis	0	0
LOC Converted to Term Loans Amortized Cost Basis	0	0
Total	0	0
Commercial | Commercial | Risk rate 5, 6, and 7
Financing Receivable, Credit Quality Indicator [Line Items]
2021 (YTD)	423,465	1,197,019
2020	233,533	159,577
2019	93,913	112,434
2018	67,800	67,459
2017	31,627	35,528
2016 and Prior	45,660	45,902
Lines of Credit (“LOC”) Amortized Cost Basis	862,257	869,751
LOC Converted to Term Loans Amortized Cost Basis	63,650	86,716
Total	1,821,905	2,574,386
Commercial | Agricultural
Financing Receivable, Credit Quality Indicator [Line Items]
Total	216,735	175,905
Commercial | Agricultural | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2021 (YTD)	27,000	36,128
2020	22,841	19,144
2019	11,726	10,014
2018	4,599	4,671
2017	2,688	1,916
2016 and Prior	655	340
Lines of Credit (“LOC”) Amortized Cost Basis	144,909	101,238
LOC Converted to Term Loans Amortized Cost Basis	1,447	1,560
Total	215,865	175,011
Commercial | Agricultural | Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
2021 (YTD)	0	0
2020	0	79
2019	0	13
2018	9	299
2017	0	0
2016 and Prior	0	6
Lines of Credit (“LOC”) Amortized Cost Basis	0	34
LOC Converted to Term Loans Amortized Cost Basis	0	0
Total	9	431
Commercial | Agricultural | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2021 (YTD)	192	86
2020	70	101
2019	99	64
2018	254	47
2017	68	12
2016 and Prior	9	10
Lines of Credit (“LOC”) Amortized Cost Basis	99	68
LOC Converted to Term Loans Amortized Cost Basis	70	75
Total	861	463
Commercial | Agricultural | Doubtful and loss
Financing Receivable, Credit Quality Indicator [Line Items]
2021 (YTD)	0	0
2020	0	0
2019	0	0
2018	0	0
2017	0	0
2016 and Prior	0	0
Lines of Credit (“LOC”) Amortized Cost Basis	0	0
LOC Converted to Term Loans Amortized Cost Basis	0	0
Total	0	0
Commercial | Agricultural | Risk rate 5, 6, and 7
Financing Receivable, Credit Quality Indicator [Line Items]
2021 (YTD)	27,192	36,214
2020	22,911	19,324
2019	11,825	10,091
2018	4,862	5,017
2017	2,756	1,928
2016 and Prior	664	356
Lines of Credit (“LOC”) Amortized Cost Basis	145,008	101,340
LOC Converted to Term Loans Amortized Cost Basis	1,517	1,635
Total	216,735	175,905
Other
Financing Receivable, Credit Quality Indicator [Line Items]
Total	348,868	535,591
Current
Financing Receivable, Credit Quality Indicator [Line Items]
Total	10,781,761	12,826,637
Current | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total	356,357	387,187
Current | Consumer | Credit cards
Financing Receivable, Credit Quality Indicator [Line Items]
2021 (YTD)	0	0
2020	0	0
2019	0	0
2018	0	0
2017	0	0
2016 and Prior	0	0
Lines of Credit (“LOC”) Amortized Cost Basis	174,880	187,881
LOC Converted to Term Loans Amortized Cost Basis	0	0
Total	174,880	187,881
Current | Consumer | Other consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2021 (YTD)	105,415	69,334
2020	26,334	44,215
2019	15,158	27,525
2018	8,396	21,995
2017	7,051	19,023
2016 and Prior	5,138	2,530
Lines of Credit (“LOC”) Amortized Cost Basis	13,985	14,684
LOC Converted to Term Loans Amortized Cost Basis	0	0
Total	181,477	199,306
Current | Real Estate
Financing Receivable, Credit Quality Indicator [Line Items]
Total	8,047,271	9,169,016
Current | Real Estate | Construction and development
Financing Receivable, Credit Quality Indicator [Line Items]
Total	1,226,281	1,591,791
Current | Real Estate | Single family residential
Financing Receivable, Credit Quality Indicator [Line Items]
2021 (YTD)	223,243	473,340
2020	245,410	209,810
2019	152,838	297,308
2018	229,241	235,429
2017	179,874	183,229
2016 and Prior	318,019	236,395
Lines of Credit (“LOC”) Amortized Cost Basis	169,693	196,505
LOC Converted to Term Loans Amortized Cost Basis	9,683	10,592
Total	1,528,001	1,842,608
Current | Real Estate | Other commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Total	5,292,989	5,734,617
Current | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Total	2,029,272	2,734,935
Current | Commercial | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Total	1,813,136	2,559,443
Current | Commercial | Agricultural
Financing Receivable, Credit Quality Indicator [Line Items]
Total	216,136	175,492
Current | Other
Financing Receivable, Credit Quality Indicator [Line Items]
2021 (YTD)	58	125
2020	4,789	4,260
2019	1,287	27,256
2018	24,108	6,489
2017	5,483	2,628
2016 and Prior	6,111	6,065
Lines of Credit (“LOC”) Amortized Cost Basis	307,025	488,676
LOC Converted to Term Loans Amortized Cost Basis	0	0
Total	348,861	535,499
30-89 days past due | Consumer | Credit cards
Financing Receivable, Credit Quality Indicator [Line Items]
2021 (YTD)	0	0
2020	0	0
2019	0	0
2018	0	0
2017	0	0
2016 and Prior	0	0
Lines of Credit (“LOC”) Amortized Cost Basis	751	708
LOC Converted to Term Loans Amortized Cost Basis	0	0
Total	751	708
30-89 days past due | Consumer | Other consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2021 (YTD)	197	234
2020	148	441
2019	113	327
2018	142	658
2017	184	689
2016 and Prior	129	84
Lines of Credit (“LOC”) Amortized Cost Basis	12	338
LOC Converted to Term Loans Amortized Cost Basis	0	0
Total	925	2,771
30-89 days past due | Real Estate | Single family residential
Financing Receivable, Credit Quality Indicator [Line Items]
2021 (YTD)	0	6,300
2020	217	2,258
2019	1,124	2,593
2018	704	2,610
2017	1,279	2,058
2016 and Prior	2,215	6,050
Lines of Credit (“LOC”) Amortized Cost Basis	1,007	1,781
LOC Converted to Term Loans Amortized Cost Basis	0	76
Total	6,546	23,726
30-89 days past due | Other
Financing Receivable, Credit Quality Indicator [Line Items]
2021 (YTD)	0	59
2020	0	0
2019	0	0
2018	0	0
2017	0	33
2016 and Prior	7	0
Lines of Credit (“LOC”) Amortized Cost Basis	0	0
LOC Converted to Term Loans Amortized Cost Basis	0	0
Total	7	92
90+ days past due
Financing Receivable, Credit Quality Indicator [Line Items]
Total	27,820	35,188
90+ days past due | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total	343	558
90+ days past due | Consumer | Credit cards
Financing Receivable, Credit Quality Indicator [Line Items]
2021 (YTD)	0	0
2020	0	0
2019	0	0
2018	0	0
2017	0	0
2016 and Prior	0	0
Lines of Credit (“LOC”) Amortized Cost Basis	253	256
LOC Converted to Term Loans Amortized Cost Basis	0	0
Total	253	256
90+ days past due | Consumer | Other consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2021 (YTD)	0	79
2020	14	58
2019	27	25
2018	9	80
2017	20	40
2016 and Prior	19	12
Lines of Credit (“LOC”) Amortized Cost Basis	1	8
LOC Converted to Term Loans Amortized Cost Basis	0	0
Total	90	302
90+ days past due | Real Estate
Financing Receivable, Credit Quality Indicator [Line Items]
Total	20,379	27,014
90+ days past due | Real Estate | Construction and development
Financing Receivable, Credit Quality Indicator [Line Items]
Total	605	3,089
90+ days past due | Real Estate | Single family residential
Financing Receivable, Credit Quality Indicator [Line Items]
2021 (YTD)	67	557
2020	380	1,853
2019	595	2,735
2018	1,141	2,582
2017	1,528	832
2016 and Prior	1,785	3,852
Lines of Credit (“LOC”) Amortized Cost Basis	586	1,928
LOC Converted to Term Loans Amortized Cost Basis	72	0
Total	6,154	14,339
90+ days past due | Real Estate | Other commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Total	13,620	9,586
90+ days past due | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Total	7,098	7,616
90+ days past due | Commercial | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Total	6,639	7,429
90+ days past due | Commercial | Agricultural
Financing Receivable, Credit Quality Indicator [Line Items]
Total	459	187
90+ days past due | Other
Financing Receivable, Credit Quality Indicator [Line Items]
2021 (YTD)	0	0
2020	0	0
2019	0	0
2018	0	0
2017	0	0
2016 and Prior	0	0
Lines of Credit (“LOC”) Amortized Cost Basis	0	0
LOC Converted to Term Loans Amortized Cost Basis	0	0
Total	0	0
30 + days past due | Consumer | Credit cards
Financing Receivable, Credit Quality Indicator [Line Items]
2021 (YTD)	0	0
2020	0	0
2019	0	0
2018	0	0
2017	0	0
2016 and Prior	0	0
Lines of Credit (“LOC”) Amortized Cost Basis	175,884	188,845
LOC Converted to Term Loans Amortized Cost Basis	0	0
Total	175,884	188,845
30 + days past due | Consumer | Other consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2021 (YTD)	105,612	69,647
2020	26,496	44,714
2019	15,298	27,877
2018	8,547	22,733
2017	7,255	19,752
2016 and Prior	5,286	2,626
Lines of Credit (“LOC”) Amortized Cost Basis	13,998	15,030
LOC Converted to Term Loans Amortized Cost Basis	0	0
Total	182,492	202,379
30 + days past due | Real Estate | Single family residential
Financing Receivable, Credit Quality Indicator [Line Items]
2021 (YTD)	223,310	480,197
2020	246,007	213,921
2019	154,557	302,636
2018	231,086	240,621
2017	182,681	186,119
2016 and Prior	322,019	246,297
Lines of Credit (“LOC”) Amortized Cost Basis	171,286	200,214
LOC Converted to Term Loans Amortized Cost Basis	9,755	10,668
Total	1,540,701	1,880,673
30 + days past due | Other
Financing Receivable, Credit Quality Indicator [Line Items]
2021 (YTD)	58	184
2020	4,789	4,260
2019	1,287	27,256
2018	24,108	6,489
2017	5,483	2,661
2016 and Prior	6,118	6,065
Lines of Credit (“LOC”) Amortized Cost Basis	307,025	488,676
LOC Converted to Term Loans Amortized Cost Basis	0	0
Total	$ 348,868	$ 535,591

XML

Loans and Allowance for Credit Losses - Collateral Dependent Loans (Details) $ in Thousands	Sep. 30, 2021 USD ($)
Loans and Leases Receivable Disclosure [Line Items]
Financing receivable, collateral dependent, amount	$ 42,091
Real Estate Collateral
Loans and Leases Receivable Disclosure [Line Items]
Financing receivable, collateral dependent, amount	38,774
Energy
Loans and Leases Receivable Disclosure [Line Items]
Financing receivable, collateral dependent, amount	0
Other Collateral
Loans and Leases Receivable Disclosure [Line Items]
Financing receivable, collateral dependent, amount	3,317
Real Estate | Construction and development
Loans and Leases Receivable Disclosure [Line Items]
Financing receivable, collateral dependent, amount	4,181
Real Estate | Construction and development | Real Estate Collateral
Loans and Leases Receivable Disclosure [Line Items]
Financing receivable, collateral dependent, amount	4,181
Real Estate | Construction and development | Energy
Loans and Leases Receivable Disclosure [Line Items]
Financing receivable, collateral dependent, amount	0
Real Estate | Construction and development | Other Collateral
Loans and Leases Receivable Disclosure [Line Items]
Financing receivable, collateral dependent, amount	0
Real Estate | Single family residential
Loans and Leases Receivable Disclosure [Line Items]
Financing receivable, collateral dependent, amount	2,921
Real Estate | Single family residential | Real Estate Collateral
Loans and Leases Receivable Disclosure [Line Items]
Financing receivable, collateral dependent, amount	2,921
Real Estate | Single family residential | Energy
Loans and Leases Receivable Disclosure [Line Items]
Financing receivable, collateral dependent, amount	0
Real Estate | Single family residential | Other Collateral
Loans and Leases Receivable Disclosure [Line Items]
Financing receivable, collateral dependent, amount	0
Real Estate | Other commercial
Loans and Leases Receivable Disclosure [Line Items]
Financing receivable, collateral dependent, amount	31,672
Real Estate | Other commercial | Real Estate Collateral
Loans and Leases Receivable Disclosure [Line Items]
Financing receivable, collateral dependent, amount	31,672
Real Estate | Other commercial | Energy
Loans and Leases Receivable Disclosure [Line Items]
Financing receivable, collateral dependent, amount	0
Real Estate | Other commercial | Other Collateral
Loans and Leases Receivable Disclosure [Line Items]
Financing receivable, collateral dependent, amount	0
Commercial | Commercial
Loans and Leases Receivable Disclosure [Line Items]
Financing receivable, collateral dependent, amount	3,317
Commercial | Commercial | Real Estate Collateral
Loans and Leases Receivable Disclosure [Line Items]
Financing receivable, collateral dependent, amount	0
Commercial | Commercial | Energy
Loans and Leases Receivable Disclosure [Line Items]
Financing receivable, collateral dependent, amount	0
Commercial | Commercial | Other Collateral
Loans and Leases Receivable Disclosure [Line Items]
Financing receivable, collateral dependent, amount	$ 3,317

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Loans and Allowance for Credit Losses - Activity in the Allowance for Loan Losses, by Portfolio Segment, for the Current Year (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of period			$ 238,050
Provision for credit loss expense	$ (19,890)	$ 22,981	(31,396)	$ 68,030
Balance, end of period	202,508		202,508
Loans, Excluding Acquired Loans
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of period	227,239	231,643	238,050	68,244
Provision for credit loss expense	(19,890)	22,313	(29,901)	75,190
Charge-offs	(8,047)	(7,403)	(14,503)	(50,298)
Recoveries	3,206	1,698	8,862	3,738
Net charge-offs	(4,841)	(5,705)	(5,641)	(46,560)
Balance, end of period	202,508	248,251	202,508	248,251
Loans, Excluding Acquired Loans | Other Consumer and Other
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of period	3,616	12,055	5,617	2,169
Provision for credit loss expense	(122)	(2,844)	(1,737)	(3,829)
Charge-offs	(463)	(1,091)	(1,577)	(3,062)
Recoveries	408	366	1,136	1,110
Net charge-offs	(55)	(725)	(441)	(1,952)
Balance, end of period	3,439	8,486	3,439	8,486
Loans, Excluding Acquired Loans | Commercial
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of period	29,793	59,138	42,093	22,863
Provision for credit loss expense	(11,853)	(6,499)	(25,453)	42,808
Charge-offs	(932)	(4,327)	(2,099)	(40,537)
Recoveries	463	936	2,930	1,381
Net charge-offs	(469)	(3,391)	831	(39,156)
Balance, end of period	17,471	49,248	17,471	49,248
Loans, Excluding Acquired Loans | Real Estate
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of period	188,388	149,471	182,868	39,161
Provision for credit loss expense	(7,668)	33,479	(1,948)	31,341
Charge-offs	(5,941)	(1,153)	(8,068)	(3,373)
Recoveries	2,068	120	3,995	474
Net charge-offs	(3,873)	(1,033)	(4,073)	(2,899)
Balance, end of period	176,847	181,917	176,847	181,917
Loans, Excluding Acquired Loans | Consumer | Credit cards
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of period	5,442	10,979	7,472	4,051
Provision for credit loss expense	(247)	(1,823)	(763)	4,870
Charge-offs	(711)	(832)	(2,759)	(3,326)
Recoveries	267	276	801	773
Net charge-offs	(444)	(556)	(1,958)	(2,553)
Balance, end of period	$ 4,751	$ 8,600	$ 4,751	8,600
Cumulative Effect, Period of Adoption, Adjustment | Loans, Excluding Acquired Loans
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of period				151,377
Cumulative Effect, Period of Adoption, Adjustment | Loans, Excluding Acquired Loans | Other Consumer and Other
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of period				12,098
Cumulative Effect, Period of Adoption, Adjustment | Loans, Excluding Acquired Loans | Commercial
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of period				22,733
Cumulative Effect, Period of Adoption, Adjustment | Loans, Excluding Acquired Loans | Real Estate
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of period				114,314
Cumulative Effect, Period of Adoption, Adjustment | Loans, Excluding Acquired Loans | Consumer | Credit cards
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of period				$ 2,232

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Loans and Allowance for Credit Losses - Provision for Credit Losses (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Receivables [Abstract]
Loans	$ (19,890,000)	$ 22,313,000	$ (29,901,000)	$ 75,190,000
Unfunded commitments	0	0	0	(8,000,000)
Securities - HTM	0	66,000	(1,183,000)	4,000
Securities - AFS	0	602,000	(312,000)	836,000
Total	$ (19,890,000)	$ 22,981,000	$ (31,396,000)	$ 68,030,000

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Right-Of-Use Lease Assets and Lease Liabilities - Lease Expense and Supplemental Information (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Leases [Abstract]
Right-of-use lease assets	$ 40,700	$ 31,348
Lease liabilities	$ 41,110	$ 31,433
Weighted average remaining lease term	8 years 6 months 7 days	6 years 6 months 18 days
Weighted average discount rate	2.43%	3.09%
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Accrued interest and other liabilities	Accrued interest and other liabilities

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Right-Of-Use Lease Assets and Lease Liabilities (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Leases [Abstract]
Operating lease cost	$ 2.8	$ 3.5	$ 8.5	$ 10.1

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Premises and Equipment (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Right-of-use lease assets	$ 40,700	$ 31,348
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]
Accumulated depreciation and amortization	$ (163,728)	$ (140,450)
Total premises and equipment, net	463,924	441,692
Land
Property, Plant and Equipment [Line Items]
Premises and equipment	99,317	90,953
Buildings and improvements
Property, Plant and Equipment [Line Items]
Premises and equipment	313,884	293,338
Furniture, fixtures and equipment
Property, Plant and Equipment [Line Items]
Premises and equipment	103,946	100,863
Software
Property, Plant and Equipment [Line Items]
Premises and equipment	65,855	64,877
Construction in progress
Property, Plant and Equipment [Line Items]
Premises and equipment	$ 3,950	$ 763

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Goodwill and Other Intangible Assets - Textual (Details) - USD ($)	3 Months Ended					9 Months Ended	12 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Sep. 30, 2021	Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Goodwill			$ 1,075,305,000			$ 1,075,305,000	$ 1,075,305,000
Goodwill impairment	$ 0	$ 0	$ 0	$ 0	$ 0		$ 0
Minimum
Finite-Lived Intangible Assets [Line Items]
Useful life						10 years
Maximum
Finite-Lived Intangible Assets [Line Items]
Useful life						15 years
Core Deposit Premium | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful life						10 years
Core Deposit Premium | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful life						15 years

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Goodwill and Other Intangible Assets - Changes in Goodwill and Other Intangibles (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Finite-lived Intangible Assets [Roll Forward]
Core deposit premiums, beginning of period			$ 111,110
Amortization of intangibles	$ (3,332)	$ (3,362)	(10,008)	$ (10,144)
Total	100,428		100,428		$ 111,110
Core deposit premiums, end of period	100,428		100,428		111,110
Core Deposit Premium
Finite-lived Intangible Assets [Roll Forward]
Core deposit premiums, beginning of period			97,363	111,808	111,808
Disposition of intangible asset			(674)		(2,324)
Amortization of intangibles			(8,978)		(12,121)
Total	87,711		87,711		97,363
Core deposit premiums, end of period	87,711		87,711		97,363
Books of Business Intangible
Finite-lived Intangible Assets [Roll Forward]
Core deposit premiums, beginning of period			13,747	$ 15,532	15,532
Disposition of intangible asset			0		(413)
Amortization of intangibles			(1,030)		(1,372)
Total	12,717		12,717		13,747
Core deposit premiums, end of period	$ 12,717		$ 12,717		$ 13,747

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Goodwill and Other Intangible Assets - Goodwill and Other Intangibles (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Total	$ 100,428	$ 111,110
Core Deposit Premium
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	144,202	146,355
Accumulated amortization	(56,491)	(48,992)
Total	87,711	97,363	$ 111,808
Books of Business Intangible
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	19,937	19,937
Accumulated amortization	(7,220)	(6,190)
Total	$ 12,717	$ 13,747	$ 15,532

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Goodwill and Other Intangible Assets - Amortization Expense (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Remainder of 2021	$ 3,332
2022	13,275
2023	12,992
2024	12,090
2025	9,505
Thereafter	49,234
Total	$ 100,428	$ 111,110

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Time Deposits - Textual (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Banking and Thrift, Other Disclosures [Abstract]
Time deposits certificates of $100,000 or more	$ 1,760.0	$ 2,030.0
Time deposits certificates over $250,000	$ 819.1	$ 889.8

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Income Taxes - Provision for Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Tax Disclosure [Abstract]
Income taxes currently payable	$ 21,500	$ 19,329	$ 46,566	$ 51,000
Deferred income taxes	(2,730)	(1,696)	3,585	2,920
Actual tax provision	$ 18,770	$ 17,633	$ 50,151	$ 53,920

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Income Taxes - Tax Effects of Temporary Differences Related to Deferred Taxes Included in Other Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Deferred tax assets:
Loans acquired	$ 5,882	$ 10,100
Allowance for credit losses	47,652	58,028
Valuation of foreclosed assets	1,631	1,673
Tax NOLs from acquisition	13,698	16,028
Deferred compensation payable	3,342	3,060
Accrued equity and other compensation	6,091	5,905
Acquired securities	431	587
Right-of-use lease liability	9,992	7,835
Unrealized loss on AFS securities	3,631	0
Allowance for unfunded commitments	5,444	5,583
Other	8,255	7,600
Gross deferred tax assets	106,049	116,399
Deferred tax liabilities:
Goodwill and other intangible amortization	(36,584)	(38,882)
Accumulated depreciation	(24,510)	(34,667)
Right-of-use lease asset	(9,893)	(7,813)
Unrealized gain on available-for-sale securities	0	(17,521)
Other	(4,001)	(4,021)
Gross deferred tax liabilities	(74,988)	(102,904)
Net deferred tax asset	$ 31,061	$ 13,495

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Income Taxes - Reconciliation of Income Tax Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Tax Disclosure [Abstract]
Computed at the statutory rate	$ 20,859	$ 17,539	$ 57,336	$ 53,719
State income taxes, net of federal tax benefit	1,477	1,143	4,855	5,502
Stock-based compensation	(22)	74	15	143
Tax exempt interest income	(2,973)	(1,752)	(8,224)	(4,594)
Tax exempt earnings on BOLI	(435)	(308)	(995)	(839)
Federal tax credits	(491)	(434)	(1,670)	(1,252)
Other differences, net	355	1,371	(1,166)	1,241
Actual tax provision	$ 18,770	$ 17,633	$ 50,151	$ 53,920

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Income Taxes - Textual (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
U.S. federal | Earliest Tax Year
Operating Loss Carryforwards [Line Items]
Open tax year	2017
State | Earliest Tax Year
Operating Loss Carryforwards [Line Items]
Open tax year	2017
Metropolitan
Operating Loss Carryforwards [Line Items]
Net operating losses		$ 62.1

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Securities Sold Under Agreements to Repurchase - Textual (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Disclosure of Repurchase Agreements [Abstract]
Repurchase agreements	$ 202.3	$ 248.9

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Securities Sold Under Agreements to Repurchase - Contractual Maturity of the Agreements (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	$ 202,300	$ 248,900
U.S. Government agencies
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	202,276	248,861
U.S. Government agencies | Overnight and Continuous
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	202,276	248,861
U.S. Government agencies | Up to 30 Days
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	0	0
U.S. Government agencies | 30-90 Days
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	0	0
U.S. Government agencies | Greater than 90 Days
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	$ 0	$ 0

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Other Borrowings and Subordinated Notes and Debentures - Debt Components (Details) - USD ($) $ in Thousands	1 Months Ended	9 Months Ended
	Mar. 31, 2018	Sep. 30, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Total other borrowings and subordinated debt		$ 1,721,863	$ 1,724,941
FHLB advances, net of discount, due 2022 to 2035, 0.23% to 7.37% secured by real estate loans
Debt Instrument [Line Items]
Total other borrowings and subordinated debt		$ 1,306,360	1,308,674
FHLB advances, net of discount, due 2022 to 2035, 0.23% to 7.37% secured by real estate loans | Minimum
Debt Instrument [Line Items]
Fixed rate (as percent)		0.23%
FHLB advances, net of discount, due 2022 to 2035, 0.23% to 7.37% secured by real estate loans | Maximum
Debt Instrument [Line Items]
Fixed rate (as percent)		7.37%
Other long-term debt
Debt Instrument [Line Items]
Total other borrowings and subordinated debt		$ 32,225	33,393
Total other borrowings
Debt Instrument [Line Items]
Total other borrowings and subordinated debt		$ 1,338,585	1,342,067
Subordinated Notes
Debt Instrument [Line Items]
Fixed rate (as percent)	5.00%	5.00%
Subordinated Notes | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Floating rate (as percent)	2.15%
Subordinated Notes | Subordinated notes payable, due 4/1/2028, fixed-to-floating rate (fixed rate of 5.00% through 3/31/2023, floating rate of 2.15% above the three month LIBOR rate, reset quarterly)
Debt Instrument [Line Items]
Long-term debt, gross		$ 330,000	330,000
Subordinated Notes | Subordinated notes payable, due 4/1/2028, fixed-to-floating rate (fixed rate of 5.00% through 3/31/2023, floating rate of 2.15% above the three month LIBOR rate, reset quarterly) | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Floating rate (as percent)		2.15%
Subordinated Notes | Trust preferred securities, due 9/15/2037, floating rate of 1.37% above the three month LIBOR rate, reset quarterly
Debt Instrument [Line Items]
Long-term debt, gross		$ 10,310	10,310
Subordinated Notes | Trust preferred securities, due 9/15/2037, floating rate of 1.37% above the three month LIBOR rate, reset quarterly | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Floating rate (as percent)		1.37%
Subordinated Notes | Trust preferred securities, due 6/6/2037, floating rate of 1.57% above the three month LIBOR rate, reset quarterly, callable without penalty
Debt Instrument [Line Items]
Long-term debt, gross		$ 10,310	10,310
Subordinated Notes | Trust preferred securities, due 6/6/2037, floating rate of 1.57% above the three month LIBOR rate, reset quarterly, callable without penalty | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Floating rate (as percent)		1.57%
Subordinated Notes | Trust preferred securities, due 12/15/2035, floating rate of 1.45% above the three month LIBOR rate, reset quarterly, callable without penalty
Debt Instrument [Line Items]
Long-term debt, gross		$ 6,702	6,702
Subordinated Notes | Trust preferred securities, due 12/15/2035, floating rate of 1.45% above the three month LIBOR rate, reset quarterly, callable without penalty | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Floating rate (as percent)		1.45%
Subordinated Notes | Trust preferred securities, net of discount, due 6/15/2037, floating rate of 1.85% above the three month LIBOR rate, reset quarterly, callable without penalty
Debt Instrument [Line Items]
Long-term debt, gross		$ 25,290	25,172
Subordinated Notes | Trust preferred securities, net of discount, due 6/15/2037, floating rate of 1.85% above the three month LIBOR rate, reset quarterly, callable without penalty | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Floating rate (as percent)		1.85%
Subordinated Notes | Trust preferred securities, net of discount, due 12/15/2036, floating rate of 1.85% above the three month LIBOR rate, reset quarterly, callable without penalty
Debt Instrument [Line Items]
Long-term debt, gross		$ 3,036	3,023
Subordinated Notes | Trust preferred securities, net of discount, due 12/15/2036, floating rate of 1.85% above the three month LIBOR rate, reset quarterly, callable without penalty | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Floating rate (as percent)		1.85%
Total subordinated notes and debentures
Debt Instrument [Line Items]
Total other borrowings and subordinated debt		$ 383,278	382,874
Unamortized debt issuance costs		$ (2,370)	$ (2,643)

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Other Borrowings and Subordinated Notes and Debentures - Textual (Details) - USD ($)	1 Months Ended	9 Months Ended
	Mar. 31, 2018	Sep. 30, 2021
Debt Instrument [Line Items]
FHLB advances		$ 1,310,000,000
FHLB advances outstanding		1,300,000,000
Mortgage loans and investment securities securing FHLB advances		4,400,000,000
Additional advances from FHLB		$ 3,000,000,000
Federal Home Loan Bank Owns the Options (FOTO) Advances | Minimum
Debt Instrument [Line Items]
Debt term		10 years
Federal Home Loan Bank Owns the Options (FOTO) Advances | Maximum
Debt Instrument [Line Items]
Debt term		15 years
Subordinated debt
Debt Instrument [Line Items]
Subordinated debentures	$ 330,000,000
Fixed rate (as percent)	5.00%	5.00%
Debt issuance costs	$ 3,600,000
Subordinated debt | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Floating rate (as percent)	2.15%

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Other Borrowings and Subordinated Notes and Debentures - Aggregate Annual Maturities of Long-term Debt (Details) $ in Thousands	Sep. 30, 2021 USD ($)
Debt Disclosure [Abstract]
Remainder of 2021	$ 451
2022	1,727
2023	1,686
2024	2,327
2025	4,876
Thereafter	1,710,796
Total	$ 1,721,863

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Capital Stock - Textual (Details) - USD ($)	3 Months Ended		9 Months Ended		20 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Jun. 30, 2021	Jul. 23, 2021	Jul. 22, 2021	Dec. 31, 2020	Oct. 29, 2019	Feb. 27, 2009
Class of Stock [Line Items]
Preferred stock, shares authorized (in shares)	40,040,000		40,040,000					40,040,000		40,040,000
Preferred stock, par value (in dollars per share)	$ 0.01		$ 0.01					$ 0.01		$ 0.01
Number of shares authorized to be repurchased (in shares)						276,500,000	180,000,000
Stock repurchases (in shares)	1,806,205	0	1,937,121	4,922,336	178,000,000
Stock repurchases, average price (in dollars per share)	$ 28.48		$ 28.14	$ 18.96
Maximum
Class of Stock [Line Items]
Preferred stock, liquidation preference, value										$ 80,000,000
Reliance Bancshares, Inc. | Series D Preferred Stock
Class of Stock [Line Items]
Preferred stock, par value (in dollars per share)									$ 0.01

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Undivided Profits - Textual (Details) $ in Millions	9 Months Ended
	Sep. 30, 2021 USD ($)
Equity [Abstract]
Threshold percentage of net profits exceeded by dividends declared, any calendar year (as percent)	75.00%
Threshold percentage of net profits exceeded by dividends declared, combined with preceding year (as percent)	75.00%
Statutory accounting practices, statutory amount available for dividend payments without regulatory approval	$ 47.0
Tier 1 leverage capital required to be well capitalized to average assets (as percent)	0.05
Tier 1 risk-based capital required to be well capitalized to risk weighted assets (as percent)	0.08
Capital required to be well-capitalized to risk weighted assets (as percent)	0.10
Common equity Tier 1 ratio required to be well capitalized (as percent)	6.50%
Capital conservation buffer (as percent)	2.50%
CET1 ratio (as percent)	0.1427

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Stock-Based Compensation - Stock Compensation Plans (Details) - $ / shares	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Stock Options Outstanding
Stock options outstanding, number of shares, balance (in shares)	658,000
Stock options granted (in shares)	0	0
Stock options exercised, exercised (in shares)	(183,000)
Stock options forfeited/expired (in shares)	0
Stock options outstanding, number of shares, balance (in shares)	475,000
Stock options outstanding, number of shares, exercisable (in shares)	475,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Stock options, weighted average exercise price, balance (in dollars per share)	$ 22.48
Stock options, weighted average exercise price, granted (in dollars per share)	0
Stock options, weighted average exercise price, exercised (in dollars per share)	22.50
Stock options, weighted average exercise price, forfeited/expired (in dollars per share)	0
Stock options, weighted average exercise price, balance (in dollars per share)	22.47
Stock options outstanding, weighted average exercise price, exercisable (in dollars per share)	$ 22.47
Non-vested Stock Awards Outstanding
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Non-vested shares outstanding, balance (in shares)	5,000
Non-vested shares outstanding, granted (in shares)	0
Non-vested shares outstanding, vested (earned) (in shares)	(3,000)
Non-vested shares outstanding, forfeited/expired (in shares)	0
Non-vested shares outstanding, balance (in shares)	2,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Non-vested shares outstanding. weighted-average grant-date fair value, balance (in dollars per share)	$ 22.35
Non-vested shares outstanding. weighted-average grant-date fair value, granted (in dollars per share)	0
Non-vested shares outstanding. weighted-average grant-date fair value, vested (earned) (in dollars per share)	22.48
Non-vested shares outstanding. weighted-average grant-date fair value, forfeited/expired (in dollars per share)	0
Non-vested shares outstanding. weighted-average grant-date fair value, balance (in dollars per share)	$ 22.20
Non-vested Stock Units Outstanding
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Non-vested shares outstanding, balance (in shares)	1,032,000
Non-vested shares outstanding, granted (in shares)	526,000
Non-vested shares outstanding, vested (earned) (in shares)	(331,000)
Non-vested shares outstanding, forfeited/expired (in shares)	(77,000)
Non-vested shares outstanding, balance (in shares)	1,150,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Non-vested shares outstanding. weighted-average grant-date fair value, balance (in dollars per share)	$ 24.53
Non-vested shares outstanding. weighted-average grant-date fair value, granted (in dollars per share)	29.00
Non-vested shares outstanding. weighted-average grant-date fair value, vested (earned) (in dollars per share)	25.62
Non-vested shares outstanding. weighted-average grant-date fair value, forfeited/expired (in dollars per share)	25.78
Non-vested shares outstanding. weighted-average grant-date fair value, balance (in dollars per share)	$ 26.14

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Stock-Based Compensation - Stock Options (Details) shares in Thousands	9 Months Ended
	Sep. 30, 2021 $ / shares shares
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Options outstanding, range of exercise prices, minimum (in dollars per share)	$ 9.46
Options outstanding, range of exercise prices, maximum (in dollars per share)	$ 24.07
Options outstanding, number of shares (in shares) | shares	475
Options outstanding, weighted average remaining contractual life	3 years 9 months 18 days
Options outstanding, weighted average exercise price (in dollars per share)	$ 22.47
Options exercisable, number of shares (in shares) | shares	475
Options exercisable, weighted average exercise price (in dollars per share)	$ 22.47
Range 01
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Options outstanding, range of exercise prices, minimum (in dollars per share)	9.46
Options outstanding, range of exercise prices, maximum (in dollars per share)	$ 9.46
Options outstanding, number of shares (in shares) | shares	1
Options outstanding, weighted average remaining contractual life	3 months 18 days
Options outstanding, weighted average exercise price (in dollars per share)	$ 9.46
Options exercisable, number of shares (in shares) | shares	1
Options exercisable, weighted average exercise price (in dollars per share)	$ 9.46
Range 02
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Options outstanding, range of exercise prices, minimum (in dollars per share)	10.65
Options outstanding, range of exercise prices, maximum (in dollars per share)	$ 10.65
Options outstanding, number of shares (in shares) | shares	3
Options outstanding, weighted average remaining contractual life	1 year 3 months 29 days
Options outstanding, weighted average exercise price (in dollars per share)	$ 10.65
Options exercisable, number of shares (in shares) | shares	3
Options exercisable, weighted average exercise price (in dollars per share)	$ 10.65
Range 03
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Options outstanding, range of exercise prices, minimum (in dollars per share)	20.29
Options outstanding, range of exercise prices, maximum (in dollars per share)	$ 20.29
Options outstanding, number of shares (in shares) | shares	47
Options outstanding, weighted average remaining contractual life	3 years 3 months
Options outstanding, weighted average exercise price (in dollars per share)	$ 20.29
Options exercisable, number of shares (in shares) | shares	47
Options exercisable, weighted average exercise price (in dollars per share)	$ 20.29
Range 04
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Options outstanding, range of exercise prices, minimum (in dollars per share)	20.36
Options outstanding, range of exercise prices, maximum (in dollars per share)	$ 20.36
Options outstanding, number of shares (in shares) | shares	1
Options outstanding, weighted average remaining contractual life	3 years 1 month 17 days
Options outstanding, weighted average exercise price (in dollars per share)	$ 20.36
Options exercisable, number of shares (in shares) | shares	1
Options exercisable, weighted average exercise price (in dollars per share)	$ 20.36
Range 05
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Options outstanding, range of exercise prices, minimum (in dollars per share)	22.20
Options outstanding, range of exercise prices, maximum (in dollars per share)	$ 22.20
Options outstanding, number of shares (in shares) | shares	51
Options outstanding, weighted average remaining contractual life	3 years 5 months 23 days
Options outstanding, weighted average exercise price (in dollars per share)	$ 22.20
Options exercisable, number of shares (in shares) | shares	51
Options exercisable, weighted average exercise price (in dollars per share)	$ 22.20
Range 06
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Options outstanding, range of exercise prices, minimum (in dollars per share)	22.75
Options outstanding, range of exercise prices, maximum (in dollars per share)	$ 22.75
Options outstanding, number of shares (in shares) | shares	293
Options outstanding, weighted average remaining contractual life	3 years 10 months 9 days
Options outstanding, weighted average exercise price (in dollars per share)	$ 22.75
Options exercisable, number of shares (in shares) | shares	293
Options exercisable, weighted average exercise price (in dollars per share)	$ 22.75
Range 07
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Options outstanding, range of exercise prices, minimum (in dollars per share)	23.51
Options outstanding, range of exercise prices, maximum (in dollars per share)	$ 23.51
Options outstanding, number of shares (in shares) | shares	72
Options outstanding, weighted average remaining contractual life	4 years 3 months 18 days
Options outstanding, weighted average exercise price (in dollars per share)	$ 23.51
Options exercisable, number of shares (in shares) | shares	72
Options exercisable, weighted average exercise price (in dollars per share)	$ 23.51
Range 08
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Options outstanding, range of exercise prices, minimum (in dollars per share)	24.07
Options outstanding, range of exercise prices, maximum (in dollars per share)	$ 24.07
Options outstanding, number of shares (in shares) | shares	7
Options outstanding, weighted average remaining contractual life	3 years 11 months 15 days
Options outstanding, weighted average exercise price (in dollars per share)	$ 24.07
Options exercisable, number of shares (in shares) | shares	7
Options exercisable, weighted average exercise price (in dollars per share)	$ 24.07

XML

Stock-Based Compensation - Summary of Company's Restricted Performance Stock Unit Activity (Details) - Restricted Stock Units (RSUs) shares in Thousands	9 Months Ended
	Sep. 30, 2021 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-vested shares outstanding, balance (in shares)	222
Granted (in shares)	97
Vested (earned) (in shares)	(57)
Forfeited (in shares)	(5)
Non-vested shares outstanding, balance (in shares)	257

XML

Stock-Based Compensation - Textual (Details) - USD ($)	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Share-based Payment Arrangement [Abstract]
Stock-based compensation expense	$ 12,600,000	$ 10,800,000
Unrecognized stock-based compensation expense related to stock options	0
Unrecognized stock-based compensation expense related to non-vested stock awards	$ 15,600,000
Period unrecognized expenses is expected to be recognized	1 year 8 months 12 days
Intrinsic value of stock options outstanding	$ 3,400,000
Intrinsic value of stock options exercisable	$ 3,400,000
Share price (in dollars per share)	$ 29.56
Stock options exercised	$ 1,300,000	$ 5,000
Stock options granted (in shares)	0	0

XML

Earnings Per Share ("EPS") (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Earnings Per Share [Abstract]
Net income available to common stockholders	$ 80,561	$ 65,885	$ 222,879	$ 201,897
Average common shares outstanding (in shares)	107,822	109,019	108,130	110,292
Average potential dilutive common shares (in shares)	538	189	538	189
Average diluted common shares (in shares)	108,360	109,208	108,668	110,481
Basic earnings per share (in dollars per share)	$ 0.75	$ 0.60	$ 2.06	$ 1.83
Diluted earnings per share (in dollars per share)	$ 0.74	$ 0.60	$ 2.05	$ 1.83

XML

Earnings Per Share ("EPS") - Textual (Details) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from earnings per share calculation (in shares)	0	653,718	0	653,718

XML

Additional Cash Flow Information (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Other Significant Noncash Transactions [Line Items]
Interest paid	$ 59,535	$ 95,040
Income taxes (refunded) paid	46,693	30,708
Transfers of premises to premises held for sale	0	1,072
Transfers of other real estate owned to premises held for sale	0	3,504
Transfers of premises held for sale to other real estate owned	4,368	0
Transfers of premises held for sale to premises	5,610	0
Transfers of loans to other assets held for sale	0	114,925
Transfers of deposits to other liabilities held for sale	0	58,405
Transfers of loans to foreclosed assets held for sale
Other Significant Noncash Transactions [Line Items]
Transfers of loans and premises	3,516	3,083
Transfers of premises to foreclosed assets and other real estate owned
Other Significant Noncash Transactions [Line Items]
Transfers of loans and premises	$ 0	$ 3,120

XML

Other Income and Other Operating Expenses - Textual (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Other Income and Expenses [Abstract]
Other income	$ 6,220	$ 5,380	$ 24,590	$ 27,990
Gain on sale of business			$ 5,300	$ 8,100

XML

Other Income and Other Operating Expenses (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Other Income and Expenses [Abstract]
Professional services	$ 4,399	$ 3,779	$ 14,207	$ 13,529
Postage	1,964	1,932	6,277	5,937
Telephone	1,516	2,103	4,758	6,738
Credit card expense	2,727	2,818	7,588	7,690
Marketing	5,019	3,517	12,912	11,430
Software and technology	10,134	9,552	30,242	29,021
Operating supplies	605	824	2,013	2,588
Amortization of intangibles	3,332	3,362	10,008	10,144
Branch right sizing expense	(3,280)	442	(2,187)	2,401
Other expense	8,149	7,478	22,008	23,676
Total other operating expenses	$ 34,565	$ 35,807	$ 107,826	$ 113,154

XML

Commitments and Credit Risk - Textual (Details) - USD ($)	9 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Other Commitments [Line Items]
Outstanding letters of credit	$ 38,800,000	$ 49,000,000
Federal Home Loan Bank Certificates and Obligations (FHLB)
Other Commitments [Line Items]
Outstanding letters of credit	69,000,000	1,500,000,000
Standby Letters of Credit
Other Commitments [Line Items]
Deferred revenue	$ 0	0
Minimum
Other Commitments [Line Items]
Term of letter of credit	9 months
Maximum
Other Commitments [Line Items]
Term of letter of credit	15 years
Credit card commitments
Other Commitments [Line Items]
Outstanding commitments	$ 684,600,000	671,500,000
Other loan commitments
Other Commitments [Line Items]
Outstanding commitments	2,590,000,000	2,360,000,000
Fixed Rate Mortgage Loans
Other Commitments [Line Items]
Outstanding commitments	$ 96,600,000	$ 214,000,000

XML

Fair Value Measurements - Fair Value of Financial Assets Measure on a Recurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	$ 6,822,203	$ 3,473,598
U.S. Treasury
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	300
U.S. Government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	354,382	477,237
Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	4,421,620	1,394,936
State and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	1,575,208	1,470,723
Other securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	470,693	130,702
Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans held for sale	34,628	137,378
Derivative asset	31,609	35,846
Other liabilities held for sale		(154,620)
Derivative liability	(17,825)	(36,141)
Fair Value, Measurements, Recurring | U.S. Treasury
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	300
Fair Value, Measurements, Recurring | U.S. Government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	354,382	477,237
Fair Value, Measurements, Recurring | Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	4,421,620	1,394,936
Fair Value, Measurements, Recurring | State and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	1,575,208	1,470,723
Fair Value, Measurements, Recurring | Other securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	470,693	130,702
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans held for sale	0	0
Derivative asset	0	0
Other liabilities held for sale		0
Derivative liability	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S. Treasury
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	300
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S. Government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | State and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Other securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans held for sale	0	0
Derivative asset	31,609	35,846
Other liabilities held for sale		0
Derivative liability	(17,825)	(36,141)
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | U.S. Treasury
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | U.S. Government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	354,382	477,237
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	4,421,620	1,394,936
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | State and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	1,575,208	1,470,723
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Other securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	470,693	130,702
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans held for sale	34,628	137,378
Derivative asset	0	0
Other liabilities held for sale		(154,620)
Derivative liability	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | U.S. Treasury
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | U.S. Government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | State and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Other securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	$ 0	$ 0

XML

Fair Value Measurements - Fair Value of Financial Assets Measured on a Nonrecurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans (collateral dependent)	$ 31,075	$ 66,209
Foreclosed assets and other real estate owned	2,661	17,074
Quoted Prices in Active Markets for Identical Assets (Level 1) | Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans (collateral dependent)	0	0
Foreclosed assets and other real estate owned	0	0
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans (collateral dependent)	0	0
Foreclosed assets and other real estate owned	0	0
Significant Unobservable Inputs (Level 3) | Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans (collateral dependent)	31,075	66,209
Foreclosed assets and other real estate owned	2,661	17,074
Collateral Pledged
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loan, related allowance	$ 2,129	$ 13,725

XML

Fair Value Measurements - Estimated Fair Values and Related Carrying Amounts of Financial Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Held-to-maturity securities	$ 1,487,916	$ 341,925
Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	1,781,413	3,472,152
Interest bearing balances due from banks - time	1,780	1,579
Held-to-maturity securities	1,516,797	333,031
Interest receivable	68,405	72,597
Loans, net	10,622,719	12,662,847
Federal funds purchased and securities sold under agreements to repurchase	217,276	299,111
Other borrowings	1,338,585	1,342,067
Subordinated notes and debentures	383,278	382,874
Interest payable	11,230	8,887
Carrying Amount | Non-interest bearing transaction accounts
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Deposits	4,918,845	4,482,091
Carrying Amount | Interest bearing transaction accounts and savings deposits
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Deposits	10,697,451	9,672,608
Carrying Amount | Time deposits
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Deposits	2,455,774	2,832,327
Fair Value Measurements
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	1,781,413	3,472,152
Interest bearing balances due from banks - time	1,780	1,579
Held-to-maturity securities	1,487,916	341,925
Interest receivable	68,405	72,597
Loans, net	10,705,185	12,736,991
Federal funds purchased and securities sold under agreements to repurchase	217,276	299,111
Other borrowings	1,408,087	1,448,625
Subordinated notes and debentures	395,786	398,827
Interest payable	11,230	8,887
Fair Value Measurements | Non-interest bearing transaction accounts
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Deposits	4,918,845	4,482,091
Fair Value Measurements | Interest bearing transaction accounts and savings deposits
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Deposits	10,697,451	9,672,608
Fair Value Measurements | Time deposits
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Deposits	2,460,441	2,848,621
Fair Value Measurements | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	1,781,413	3,472,152
Interest bearing balances due from banks - time	0	0
Held-to-maturity securities	0	0
Interest receivable	0	0
Loans, net	0	0
Federal funds purchased and securities sold under agreements to repurchase	0	0
Other borrowings	0	0
Subordinated notes and debentures	0	0
Interest payable	0	0
Fair Value Measurements | Quoted Prices in Active Markets for Identical Assets (Level 1) | Non-interest bearing transaction accounts
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Deposits	0	0
Fair Value Measurements | Quoted Prices in Active Markets for Identical Assets (Level 1) | Interest bearing transaction accounts and savings deposits
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Deposits	0	0
Fair Value Measurements | Quoted Prices in Active Markets for Identical Assets (Level 1) | Time deposits
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Deposits	0	0
Fair Value Measurements | Significant Other Observable Inputs (Level 2)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	0	0
Interest bearing balances due from banks - time	1,780	1,579
Held-to-maturity securities	1,487,916	341,925
Interest receivable	68,405	72,597
Loans, net	0	0
Federal funds purchased and securities sold under agreements to repurchase	217,276	299,111
Other borrowings	1,408,087	1,448,625
Subordinated notes and debentures	395,786	398,827
Interest payable	11,230	8,887
Fair Value Measurements | Significant Other Observable Inputs (Level 2) | Non-interest bearing transaction accounts
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Deposits	4,918,845	4,482,091
Fair Value Measurements | Significant Other Observable Inputs (Level 2) | Interest bearing transaction accounts and savings deposits
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Deposits	10,697,451	9,672,608
Fair Value Measurements | Significant Other Observable Inputs (Level 2) | Time deposits
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Deposits	0	0
Fair Value Measurements | Significant Unobservable Inputs (Level 3)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	0	0
Interest bearing balances due from banks - time	0	0
Held-to-maturity securities	0	0
Interest receivable	0	0
Loans, net	10,705,185	12,736,991
Federal funds purchased and securities sold under agreements to repurchase	0	0
Other borrowings	0	0
Subordinated notes and debentures	0	0
Interest payable	0	0
Fair Value Measurements | Significant Unobservable Inputs (Level 3) | Non-interest bearing transaction accounts
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Deposits	0	0
Fair Value Measurements | Significant Unobservable Inputs (Level 3) | Interest bearing transaction accounts and savings deposits
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Deposits	0	0
Fair Value Measurements | Significant Unobservable Inputs (Level 3) | Time deposits
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Deposits	$ 2,460,441	$ 2,848,621

XML

Derivative Instruments Derivative Instruments - Notional and Fair Value Amounts of Derivative Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Fair Value Hedging
Derivatives, Fair Value [Line Items]
Derivative assets, weighted average pay rate	1.21%
Derivative assets, notional amount	$ 1,001,715	$ 0
Derivative assets, fair value	13,948	0
Interest Rate Swap
Derivatives, Fair Value [Line Items]
Derivative assets, notional amount	316,357	408,881
Derivative assets, fair value	17,661	35,846
Derivative liability, notional amount	320,001	417,941
Derivative liabilities, fair value	$ 17,825	$ 36,141

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Derivative Instruments - Narrative (Details) $ in Thousands	Sep. 30, 2021 USD ($)
Derivatives, Fair Value [Line Items]
Maximum notional contract amount as percent of total assets	10.00%
Risk Participation Agreements
Derivatives, Fair Value [Line Items]
Derivative, notional amount	$ 31,400
Energy Related Derivative
Derivatives, Fair Value [Line Items]
Derivative assets, notional amount	18,200
Derivative liability, notional amount	18,200
Derivative, net fair value	$ 265