Atlantic Union Bankshares (AUB) 10-K 26 Feb 21 2020 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2020	Feb. 17, 2021	Jun. 30, 2020
Entity Registrant Name	ATLANTIC UNION BANKSHARES CORPORATION
Entity Central Index Key	0000883948
Document Type	10-K
Document Annual Report	true
Document Transition Report	false
Entity File Number	001-39325
Entity Tax Identification Number	54-1598552
Entity Incorporation, State or Country Code	VA
Entity Address, Address Line One	1051 East Cary Street
Entity Address, Address Line Two	Suite 1200
Entity Address, City or Town	Richmond
Entity Address, State or Province	VA
Entity Address, Postal Zip Code	23219
City Area Code	804
Local Phone Number	633-5031
Document Period End Date	Dec. 31, 2020
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Amendment Flag	false
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2020
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	Yes
ICFR Auditor Attestation Flag	true
Entity Public Float			$ 1,789,465,089
Entity Common Stock, Shares Outstanding		78,798,747
Common Stock, Class A
Title of 12(b) Security	Common Stock, par value $1.33 per share
Trading Symbol	AUB
Security Exchange Name	NASDAQ
Series A Preferred Stock
Title of 12(b) Security	Depositary Shares, Each Representing a 1/400th Interest in a Share of 6.875% Perpetual Non-Cumulative Preferred Stock, Series A
Trading Symbol	AUBAP
Security Exchange Name	NASDAQ

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($)	Dec. 31, 2020	Dec. 31, 2019
Cash and cash equivalents:
Cash and due from banks	$ 172,307,000	$ 163,050,000
Interest-bearing deposits in other banks	318,974,000	234,810,000
Federal funds sold	2,013,000	38,172,000
Total cash and cash equivalents	493,294,000	436,032,000
Securities available for sale, at fair value	2,540,419,000	1,945,445,000
Securities held to maturity, at carrying value	544,851,000	555,144,000
Restricted stock, at cost	94,782,000	130,848,000
Loans held for sale, at fair value	96,742,000	55,405,000
Loans held for investment, net of deferred fees and costs	14,021,314,000	12,610,936,000
Less allowance for loan and lease losses	160,540,000	42,294,000
Total loans held for investment, net	13,860,774,000	12,568,642,000
Premises and equipment, net	163,829,000	161,073,000
Goodwill	935,560,000	935,560,000
Amortizable intangibles, net	57,185,000	73,669,000
Bank owned life insurance	326,892,000	322,917,000
Other assets	514,121,000	378,255,000
Total assets	19,628,449,000	17,562,990,000
LIABILITIES
Noninterest-bearing demand deposits	4,368,703,000	2,970,139,000
Interest-bearing deposits	11,354,062,000	10,334,842,000
Total deposits	15,722,765,000	13,304,981,000
Securities sold under agreements to repurchase	100,888,000	66,053,000
Other short-term borrowings	250,000,000	370,200,000
Long-term borrowings	489,829,000	1,077,495,000
Other liabilities	356,477,000	231,159,000
Total liabilities	16,919,959,000	15,049,888,000
Commitments and contingencies (Note 10)
STOCKHOLDERS' EQUITY
Preferred stock, $10.00 par value	173,000	0
Common stock, $1.33 par value	104,169,000	105,827,000
Additional paid-in capital	1,917,081,000	1,790,305,000
Retained earnings	616,052,000	581,395,000
Accumulated other comprehensive income (loss)	71,015,000	35,575,000
Total stockholders' equity	2,708,490,000	2,513,102,000
Total liabilities and stockholders' equity	$ 19,628,449,000	$ 17,562,990,000
Common shares outstanding	78,729,212	80,001,185
Common shares authorized	200,000,000	200,000,000
Preferred shares outstanding	17,250	0
Preferred shares authorized	500,000	500,000

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Dec. 31, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Preferred stock, par value (in dollars per share)	$ 10
Common stock, par value (in dollars per share)	$ 1.33	$ 1.33

CONSOLIDATED STATEMENTS OF INCO

CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Interest and dividend income:
Interest and fees on loans		$ 574,871	$ 612,115	$ 469,856
Interest on deposits in other banks		1,270	3,733	2,125
Interest and dividends on securities:
Taxable		43,585	51,437	36,851
Nontaxable		33,728	32,047	19,956
Total interest and dividend income		653,454	699,332	528,788
Interest expense:
Interest on deposits		75,943	114,972	59,336
Interest on short-term borrowings		1,691	15,479	18,458
Interest on long-term borrowings		20,522	31,009	24,303
Total interest expense		98,156	161,460	102,097
Net interest income		555,298	537,872	426,691
Provision for credit losses		87,141	21,092	13,736
Net interest income after provision for credit losses		468,157	516,780	412,955
Noninterest income:
Mortgage banking income		25,857	10,303	0
Gains on securities transactions	[1],[2]	12,294	7,675	383
Bank owned life insurance income		9,554	8,311	7,198
Loan-related interest rate swap fees		15,306	14,126	3,554
Gain on Shore Premier sale		0	0	19,966
Other operating income		6,098	17,791	7,145
Total noninterest income		131,486	132,815	104,241
Noninterest expenses:
Salaries and benefits		206,662	195,349	159,378
Occupancy expenses		28,841	29,793	25,368
Furniture and equipment expenses		14,923	14,216	11,991
Technology and data processing		25,929	23,686	18,397
Professional services		13,007	11,905	10,283
Marketing and advertising expense		9,886	11,566	10,043
FDIC assessment premiums and other insurance		9,971	6,874	6,644
Other taxes		16,483	15,749	11,542
Loan-related expenses		9,515	10,043	7,206
OREO and credit-related expenses		2,023	4,708	4,131
Amortization of intangible assets		16,574	18,521	12,839
Merger-related costs		0	27,824	39,728
Rebranding expense		0	6,455	0
Loss on debt extinguishment	[1],[2]	31,116	16,397	0
Other expenses		28,419	25,254	20,217
Total noninterest expenses		413,349	418,340	337,767
Income from continuing operations before income taxes		186,294	231,255	179,429
Income tax expense		28,066	37,557	30,016
Income from continuing operations		158,228	193,698	149,413
Discontinued operations:
Loss from operations of discontinued mortgage segment		0	(230)	(4,280)
Income tax benefit		0	(60)	(1,115)
Loss on discontinued operations		0	(170)	(3,165)
Net income	[1],[2]	158,228	193,528	146,248
Dividends on preferred stock		5,658	0	0
Net Income available to common shareholders		$ 152,570	$ 193,528	$ 146,248
Basic earnings per common share (in dollars per share)		$ 1.93	$ 2.41	$ 2.22
Diluted earnings per common share (in dollars per share)		1.93	2.41	2.22
Dividends declared per common share (in dollars per share)		$ 1	$ 0.96	$ 0.88
Weighted average shares outstanding, basic (in shares)		78,858,726	80,200,950	65,859,165
Diluted weighted average number of common shares outstanding (in shares)		78,875,668	80,263,557	65,908,573
Service charges on deposit accounts
Noninterest income:
Noninterest income		$ 25,251	$ 30,202	$ 25,439
Other service charges, commissions and fees
Noninterest income:
Noninterest income		6,292	6,423	5,603
Interchange fees
Noninterest income:
Noninterest income		7,184	14,619	18,803
Fiduciary and asset management fees
Noninterest income:
Noninterest income		$ 23,650	$ 23,365	$ 16,150
[1]	Discontinued operations have an immaterial impact to the Company’s Consolidated Statements of Cash Flows. The change in goodwill impairment losses included in the Operating Activities section above are attributable to discontinued operations.
[2]	Loans held for sale activity is included in the Operating Activities section above. Due to the increased mortgage related activity during 2020 and 2019, the loans held for sale activity is segregated between originations and purchases of loans held for sale and proceeds from sales of loans held for sale. 2018 loans held for sale activity is included in the change in loans held for sale and is attributable to discontinued operations which has an immaterial impact on the Company’s Consolidated Statements of Cash Flows.

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Statement of Comprehensive Income [Abstract]
Net income	[1],[2]	$ 158,228	$ 193,528	$ 146,248
Cash flow hedges:
Change in fair value of cash flow hedges		(699)	(5,103)	1,087
Reclassification adjustment for losses included in net income (net of tax, $394, $2,051, and $259 for the years ended December 31, 2020, 2019, 2018 respectively)	[3]	1,481	7,714	975
AFS securities:
Unrealized holding gains (losses) arising during period (net of tax, ($12,227), ($13,262), and $2,847 for the years ended December 31, 2020, 2019, 2018 respectively)		45,996	49,890	(10,711)
Reclassification adjustment for gains included in net income (net of tax, $2,582, $1,611, and $95 for the years ended December 31, 2020, 2019, 2018 respectively)	[4]	(9,712)	(6,064)	(362)
HTM securities:
Reclassification adjustment for accretion of unrealized gain on AFS securities transferred to HTM (net of tax, $5, $5, and $109 for the years ended December 31, 2020, 2019, 2018 respectively)	[5]	(20)	(20)	(408)
Bank owned life insurance:
Unrealized holding losses arising during the period		(2,098)	(646)	0
Reclassification adjustment for losses included in net income	[6]	492	77	76
Other comprehensive income (loss)		35,440	45,848	(9,343)
Comprehensive income		$ 193,668	$ 239,376	$ 136,905
[1]	Discontinued operations have an immaterial impact to the Company’s Consolidated Statements of Cash Flows. The change in goodwill impairment losses included in the Operating Activities section above are attributable to discontinued operations.
[2]	Loans held for sale activity is included in the Operating Activities section above. Due to the increased mortgage related activity during 2020 and 2019, the loans held for sale activity is segregated between originations and purchases of loans held for sale and proceeds from sales of loans held for sale. 2018 loans held for sale activity is included in the change in loans held for sale and is attributable to discontinued operations which has an immaterial impact on the Company’s Consolidated Statements of Cash Flows.
[3]	The gross amounts reclassified into earnings for the year ended December 31, 2020 included a $1.8 million loss related to the termination of a cash flow hedge that is reported in “Other operating income” with the corresponding income tax effect being reflected as a component of income tax expense
[4]	The gross amounts reclassified into earnings are reported as "Gains on securities transactions" on the Company’s Consolidated Statements of Income with the corresponding income tax effect being reflected as a component of income tax expense.
[5]	The gross amounts reclassified into earnings are reported within interest income on the Company’s Consolidated Statements of Income with the corresponding income tax effect being reflected as a component of income tax expense.
[6]	Reclassifications in earnings are reported in "Salaries and benefits" expense on the Company’s Consolidated Statements of Income.

CONSOLIDATED STATEMENTS OF CO_2

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Statement of Comprehensive Income [Abstract]
Tax expense (benefit) related to reclassification adjustment for losses included in net income	$ (394)	$ (2,051)	$ (259)
Tax expense (benefit) related to unrealized holding gains (losses) arising during period	12,227	13,262	(2,847)
Tax expense (benefit) related to gains on the sale of securities	2,582	1,611	95
Tax expense (benefit) related to unrealized gain for AFS securities transferred to HTM	5	$ 5	$ 109
Unrealized gain (loss) within accumulated other comprehensive income, to be reclassified into earnings	$ (1,800)

CONSOLIDATED STATEMENTS OF CHAN

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands		Common Stock	Preferred Stock	Additional Paid-In Capital	Retained EarningsCumulative Effect, Period of Adoption, Adjustment	Retained Earnings	Accumulated Other Comprehensive Income (Loss)Cumulative Effect, Period of Adoption, Adjustment	Accumulated Other Comprehensive Income (Loss)	Cumulative Effect, Period of Adoption, Adjustment	Total
Beginning balance at Dec. 31, 2017		$ 57,744		$ 610,001		$ 379,468		$ (884)		$ 1,046,329
Net income						146,248				146,248	[1],[2]
Other comprehensive income (net of taxes)								(9,343)		(9,343)
Issuance of common stock in regard to acquisitions	[3]	29,156		765,653						794,809
Dividends on common stock						(58,001)				(58,001)
Issuance of common stock under Equity Compensation Plans		162		2,185						2,347
Issuance of common stock for services rendered		31		883						914
Vesting of restricted stock, net of shares held for taxes, under Equity Compensation Plan		157		(3,065)						(2,908)
Cancellation of warrants				(1,530)						(1,530)
Stock-based compensation expense				6,132						6,132
Ending balance at Dec. 31, 2018		87,250		1,380,259	$ (370)	467,345	$ (46)	(10,273)	$ (416)	1,924,581
Net income						193,528				193,528	[1],[2]
Other comprehensive income (net of taxes)								45,848		45,848
Issuance of common stock in regard to acquisitions		21,070		478,904						499,974
Dividends on common stock						(78,345)				(78,345)
Stock purchased under stock repurchase plan		(2,889)		(77,391)						(80,280)
Issuance of common stock under Equity Compensation Plans		104		1,884						1,988
Issuance of common stock for services rendered		34		876						910
Vesting of restricted stock, net of shares held for taxes, under Equity Compensation Plan		258		(2,559)						(2,301)
Stock-based compensation expense				8,332						8,332
Ending balance at Dec. 31, 2019		105,827		1,790,305	(1,133)	581,395		35,575	(1,133)	2,513,102
Net income						158,228				158,228	[1],[2]
Other comprehensive income (net of taxes)								35,440		35,440
Issuance of preferred stock			$ 173	166,183						166,356
Issuance of common stock in regard to acquisitions										0
Dividends on common stock						(78,860)				(78,860)
Dividends on preferred stock						(5,658)				(5,658)
Stock purchased under stock repurchase plan		(1,985)		(47,894)						(49,879)
Issuance of common stock under Equity Compensation Plans		61		952						1,013
Issuance of common stock for services rendered		40		764						804
Vesting of restricted stock, net of shares held for taxes, under Equity Compensation Plan		226		(2,487)						(2,261)
Stock-based compensation expense				9,258						9,258
Ending balance at Dec. 31, 2020		$ 104,169	$ 173	$ 1,917,081	$ (39,053)	$ 616,052		$ 71,015	$ (39,053)	$ 2,708,490
[1]	Discontinued operations have an immaterial impact to the Company’s Consolidated Statements of Cash Flows. The change in goodwill impairment losses included in the Operating Activities section above are attributable to discontinued operations.
[2]	Loans held for sale activity is included in the Operating Activities section above. Due to the increased mortgage related activity during 2020 and 2019, the loans held for sale activity is segregated between originations and purchases of loans held for sale and proceeds from sales of loans held for sale. 2018 loans held for sale activity is included in the change in loans held for sale and is attributable to discontinued operations which has an immaterial impact on the Company’s Consolidated Statements of Cash Flows.
[3]	Includes conversion of Xenith warrants to the Company’s warrants.

CONSOLIDATED STATEMENTS OF CH_2

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Statement of Stockholders' Equity [Abstract]
Other comprehensive income (loss), tax	$ 10,034	$ 13,697	$ 2,792
Issuance of Common Stock in regard to acquisition, shares		15,842,026	21,922,077
Issuance of preferred stock, shares	17,250
Dividends on common stock (in dollars per share)	$ 1	$ 0.96	$ 0.88
Dividends on preferred stock (in dollars per share)	$ 328.48
Issuance of common stock under Equity Compensation Plan, shares	46,010	78,098	121,438
Stock purchased under stock repurchase plan, shares	1,493,472	2,171,944
Issuance of common stock for services rendered, shares	30,780	25,744	23,581
Vesting of restricted stock, including tax effects, under Equity Compensation Plans, shares	169,587	193,884	118,058

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Operating activities:
Net income	[1],[2]	$ 158,228	$ 193,528	$ 146,248
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation of premises and equipment	[1],[2]	15,218	15,032	13,725
Write-down of foreclosed properties and former bank premises	[1],[2]	5,526	1,906	1,324
Amortization, net	[1],[2]	27,888	24,944	12,603
Accretion related to acquisitions, net	[1],[2]	(8,397)	(7,899)	(6,711)
Provision for credit losses	[1],[2]	87,141	21,092	13,551
Gains on securities transactions, net	[1],[2]	(12,294)	(7,675)	(383)
BOLI income	[1],[2]	(9,554)	(8,311)	(7,198)
Deferred tax expense	[1],[2]	2,690	15,057	17,821
Originations and purchases of loans held for sale	[1],[2]	(764,809)	(345,116)	0
Proceeds from sales of loans held for sale	[1],[2]	723,351	312,543	0
Losses (gains) on sales of foreclosed properties and former bank premises, net	[1],[2]	29	102	(220)
Loss on debt extinguishment	[1],[2]	31,116	16,397	0
Gain on sale of Shore Premier loans	[1],[2]	0	0	(19,966)
Goodwill impairment losses	[1],[2]	0	0	864
Stock-based compensation expenses	[1],[2]	9,258	8,332	6,132
Issuance of common stock for services	[1],[2]	804	910	914
Decrease (increase) in loans held for sale from discontinued operations, net	[1],[2]	0	0	40,662
Net decrease (increase) in other assets	[1],[2]	(138,189)	(57,859)	(26,606)
Net increase in other liabilities	[1],[2]	103,916	11,816	24,005
Net cash provided by operating activities	[1],[2]	231,922	194,799	216,765
Investing activities:
Purchases of AFS securities, restricted stock, and other investments		(1,165,302)	(444,398)	(1,047,611)
Purchases of HTM securities		0	(47,217)	(485,629)
Proceeds from sales of AFS securities and restricted stock		257,945	514,070	515,764
Proceeds from maturities, calls and paydowns of AFS securities		395,993	247,770	173,597
Proceeds from maturities, calls and paydowns of HTM securities		6,963	3,142	0
Proceeds from sale of marketable equity securities		0	0	28,913
Proceeds from sale of loans held for investment		0	0	581,324
Net increase in loans held for investment		(1,393,424)	(741,146)	(704,582)
Net increase in premises and equipment		(29,573)	(15,892)	1,698
Proceeds from BOLI settlements		5,029	0	0
Proceeds from sales of foreclosed properties and former bank premises		4,063	12,118	6,295
Cash paid in acquisitions		0	(12)	(14,304)
Cash acquired in acquisitions		0	46,164	174,496
Net cash provided by (used in) investing activities		(1,918,306)	(425,401)	(770,039)
Financing activities:
Net increase in noninterest-bearing deposits		1,398,564	191,125	81,028
Net increase in interest-bearing deposits		1,019,352	916,656	351,084
Net increase (decrease) in short-term borrowings		(85,365)	(872,229)	58,645
Cash paid for contingent consideration		0	(565)	(565)
Proceeds from issuance of long-term debt		0	550,000	225,000
Repayments of long-term debt		(619,616)	(220,614)	(40,000)
Cash dividends paid - common stock		(78,860)	(78,345)	(58,001)
Cash dividends paid - preferred stock		(5,658)	0	0
Cancellation of warrants		0	0	(1,530)
Repurchase of common stock		(49,879)	(80,280)	0
Issuance of common stock		1,013	1,988	2,347
Issuance of preferred stock, net		166,356	0	0
Vesting of restricted stock, net of shares held for taxes		(2,261)	(2,301)	(2,908)
Net cash provided by (used in) financing activities		1,743,646	405,435	615,100
Increase (decrease) in cash and cash equivalents		57,262	174,833	61,826
Cash, cash equivalents and restricted cash at beginning of the period		436,032	261,199	199,373
Cash, cash equivalents and restricted cash at end of the period		493,294	436,032	261,199
Cash payments for:
Interest		101,045	159,934	99,227
Income taxes		26,103	25,058	10,830
Supplemental schedule of noncash investing and financing activities
Transfers from loans (foreclosed properties) to foreclosed properties (loans)		615	1,878	493
Transfers from bank premises to OREO		7,949	0	0
Transfers to LHFI from LHFS		(1,050)	0	0
Stock received as consideration for sale of loans held for investment		0	0	28,913
Securities Transfer From HTM to AFS		0	0	187,425
Issuance of common stock in exchange for net assets in acquisition		0	499,974	794,809	[3]
Transactions related to acquisitions
Assets acquired		0	2,849,673	3,253,328
Liabilities assumed	[4]	$ 0	$ 2,558,063	$ 2,873,718
[1]	Discontinued operations have an immaterial impact to the Company’s Consolidated Statements of Cash Flows. The change in goodwill impairment losses included in the Operating Activities section above are attributable to discontinued operations.
[2]	Loans held for sale activity is included in the Operating Activities section above. Due to the increased mortgage related activity during 2020 and 2019, the loans held for sale activity is segregated between originations and purchases of loans held for sale and proceeds from sales of loans held for sale. 2018 loans held for sale activity is included in the change in loans held for sale and is attributable to discontinued operations which has an immaterial impact on the Company’s Consolidated Statements of Cash Flows.
[3]	Includes conversion of Xenith warrants to the Company’s warrants.
[4]	2018 includes contingent consideration related to DHFB and OAL acquisitions.

SUMMARY OF SIGNIFICANT ACCOUNTI

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	12 Months Ended
	Dec. 31, 2020
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Abstract]
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES The Company Effective May 17, 2019, Union Bankshares Corporation changed its name to Atlantic Union Bankshares Corporation and Union Bank & Trust changed its name to Atlantic Union Bank. Impact of COVID-19 - On March 13, 2020, the United States President declared a national emergency in the face of a growing public health and economic crisis due to the COVID-19 global pandemic. Within a few days of the declaration of a national emergency, governors of states comprising the Company’s geographic footprint issued states of emergency in response to the novel COVID-19. As a result of this pandemic, actions were taken around the world to help mitigate the spread of COVID 19, which have impacted the economies and financial markets of many countries, including the geographical area in which the Company operates. On March 27, 2020, the CARES Act was signed into law. The CARES Act is designated to provide financial relief to the American people and American businesses in response to the economic fallout from COVID-19. On March 22, 2020, the five federal bank regulatory agencies and the Conference of State Bank Supervisors issued joint guidance (subsequently revised on April 7, 2020) with respect to loan modifications for borrowers affected by COVID-19. The CARES Act, as well as the March 22 Joint Guidance, provide enhanced guidelines and accounting for COVID-19 related modifications. The federal banking regulators have confirmed with FASB that short-term loan modifications made on a good faith basis in response to COVID-19 to borrowers who were current (i.e., less than 30 days past due on contractual payments) prior to any loan modification are not considered TDRs. In addition, Section 4013 of the CARES Act, as amended by the CAA, provides banks, savings associations, and credit unions with the ability to make loan modifications related to COVID-19 without categorizing the loan as a TDR or conducting the analysis to make the determination, which is intended to streamline the loan modification process. Any such suspension is effective for the term of the loan modification; however, the suspension is only permitted for loan modifications made during the effective period of Section 4013 and only for those loans that were not more than thirty days past due as of December 31, 2019. The relief afforded by Section 4013 of the CARES Act, as amended by the CAA, is available to loans modified between March 1, 2020 and the earlier of 60 days after the date of termination of the COVID-19 national emergency and January 1, 2022. During 2020, the Company participated in the SBA PPP under the CARES Act, which was intended to provide economic relief to small businesses that have been adversely impacted by the COVID-19 global pandemic. The Company processed over 11,000 PPP loans pursuant to the CARES Act, which totaled $1.7 billion with a recorded investment of $1.2 billion and unamortized deferred fees of $17.6 million as of December 31, 2020. The loans carry a 1% interest rate. In addition to an insignificant amount of PPP loan pay offs, the Company began processing PPP loans for forgiveness during the fourth quarter of 2020. In the aggregate, the Company processed forgiveness for approximately 3,100 PPP loans for an aggregate forgiven principal amount of approximately $429.3 million Certain provisions of the CARES Act, including additional PPP funding, were extended as a result of the CAA, which was signed into law on December 27, 2020. The Company began accepting applications on January 19, 2021 for additional PPP loans pursuant to the CAA. Principles of Consolidation - The accounting policies and practices of Atlantic Union Bankshares Corporation and subsidiaries conform to GAAP and follow general practices within the banking industry. The consolidated financial statements include the accounts of the Company, which is a financial holding company and a bank holding company that owns all of the outstanding common stock of its banking subsidiary, Atlantic Union Bank, which owns Union Insurance Group, LLC, Old Dominion Capital Management, Inc., Dixon, Hubard, Feinour & Brown, Inc., and Atlantic Union Equipment Finance, Inc. Atlantic Union Bank and subsidiary trusts were formed for the purpose of issuing redeemable trust preferred capital notes in connection with two of the Company’s acquisitions prior to 2006. The Company’s subsidiary trusts were formed for the purpose of issuing redeemable trust preferred capital notes, including in connection with prior acquisitions by the Company. ASC 860, Transfers and Servicing Use of Estimates Variable Interest Entities Business Combinations and Divestitures - Merger-related costs are costs the Company incurs to effect a business combination. Those costs include advisory, legal, accounting, valuation, and other professional or consulting fees. Some other examples of costs to the Company include systems conversions, integration planning consultants, contract terminations, and advertising costs. The Company will account for merger-related costs as expenses in the periods in which the costs are incurred and the services are received. There is one exception to the aforementioned policy, which includes the costs to issue debt or equity securities, which will be recognized in accordance with other applicable accounting guidance. These merger-related costs are included on the Company’s Consolidated Statements of Income classified within the noninterest expense caption. Cash and Cash Equivalents - Restricted cash is disclosed in Note 10 “Commitments and Contingencies” and is comprised of cash maintained at various correspondent banks as collateral for the Company’s derivative portfolio and is included in interest-bearing deposits in other banks on the Company’s Consolidated Balance Sheets. In addition, the Company is required to maintain reserve balances with the FRB based on the type and amount of deposits; however, on March 15, 2020 the FRB announced that reserve requirement ratios would be reduced to zero percent effective March 26, 2020 due to economic conditions, which eliminated the reserve requirement for all depository institutions. Investment Securities Available for Sale Held to Maturity Equity Investments Restricted Stock, at cost Interest income includes amortization of purchase premium or discount. Premiums and discounts on securities are generally amortized on the level-yield method without anticipating prepayments, except for mortgage-backed securities where prepayments are anticipated. Premiums on callable debt securities are amortized to their earliest call date. Gains and losses on sales are recorded on the trade date and determined using the specific identification method. The Company regularly evaluates all securities whose values have declined below amortized cost to assess whether the decline in fair value is the result of credit impairment. For AFS securities, the Company evaluates the fair value and credit quality of its AFS securities on at least a quarterly basis. In the event the fair value of a security falls below its amortized cost basis, the security will be evaluated to determine whether the decline in value was caused by changes in market interest rates or security credit quality. The primary indicators of credit quality for the Company’s AFS portfolio are security type and credit rating, which are influenced by a number of security-specific factors that may include obligor cash flow, geography, seniority, structure, credit enhancement and other factors. There is currently no ACL held against the Company’s AFS securities portfolio at December 31, 2020. See Note 3 “Securities,” for additional information on the Company’s ACL analysis. If unrealized losses are related to credit quality, the Company estimates the credit related loss by evaluating the present value of cash flows expected to be collected from the security with the amortized cost basis of the security. If the present value of cash flows expected to be collected is less than the amortized cost basis of the security and a credit loss exists, an ACL shall be recorded for the credit loss, limited by the amount that the fair value is less than amortized cost basis. Non-credit related declines in fair value are recognized in other comprehensive income, net of applicable taxes. Changes in the ACL are recorded as a provision for or reversal of credit loss expense. Charge-offs are recorded against the ACL when management believes the AFS security is no longer collectible. A debt security is placed on nonaccrual status at the time any principal or interest payments become 90 days delinquent. The Company evaluates the credit risk of its HTM securities on at least a quarterly basis. Management estimates expected credit losses on held-to-maturity debt securities based on an individual basis based on the PD/LGD methodology primarily using security-level credit ratings. Management recorded an immaterial ACL on HTM securities as a result of the adoption of ASC 326, and no additional changes were needed at year ended December 31, 2020. Loans Held for Sale Loans Held for Investment Loans that management has the intent and ability to hold for the foreseeable future or until maturity or pay-off generally are reported at their outstanding unpaid principal balances adjusted for any charge-offs, the ALLL, and any deferred fees and costs on originated loans. Interest income is accrued on the unpaid principal balance. Loan origination fees, net of certain direct origination costs, are deferred and recognized as an adjustment of the related loan yield using the interest method. Below is a summary of the current loan portfolios: Construction and Land Development Also, included in this category are loans generally made to residential home builders to support their lot and home construction inventory needs. Repayment relies upon the sale of the underlying residential real estate project. This type of lending carries a higher level of risk as compared to other commercial lending. This class of lending manages risks related to residential real estate market conditions, a functioning primary and secondary market in which to finance the sale of residential properties, and the borrower’s ability to manage inventory and run projects. The Company manages this risk by lending to experienced builders and developers by using specific underwriting policies and procedures for these types of loans and by avoiding excessive concentrations with any particular customer or geographic region. Commercial Real Estate – Owner Occupied Commercial Real Estate – Non-Owner Occupied Multifamily Real Estate Commercial & Industrial Residential 1-4 Family - Commercial Residential 1-4 Family - Consumer Residential 1-4 Family - Revolving Auto Consumer Other Commercial Nonaccruals, Past Dues, and Charge-offs The policy for placing commercial loans on nonaccrual status is generally when the loan is 90 days delinquent unless the credit is well secured and in process of collection. Consumer loans are typically charged-off when management judges the loan to be uncollectible but generally no later than 120 days past due for non-real estate secured loans and 180 days for real estate secured loans. Non-real estate secured consumer loans are generally not placed on nonaccrual status prior to charge off. Commercial loans are typically written down to net realizable value when it is determined that the Company will be unable to collect the principal amount in full and the amount is a confirmed loss. Loans in all classes of portfolios are considered past due or delinquent when a contractual payment has not been satisfied. Loans are placed on nonaccrual status or charged off at an earlier date if collection of principal and interest is considered doubtful and in accordance with regulatory requirements. In response to the COVID-19 pandemic, the Company offered short-term loan modifications to assist borrowers. The Company enhanced the monitoring over loans that received modifications, specifically full principal and interest payment deferrals, and considered nonaccrual treatment at which time the Company no longer expected to collect all principal and interest over the life of the loan. The process for charge-offs is discussed in detail within the “Allowance for Loan and Lease Losses” section of this Note 1. For both the commercial and consumer loan segments, all interest accrued but not collected for loans placed on nonaccrual status or charged-off is reversed against interest income and accrual of interest income is terminated. Payments and interest on these loans are accounted for using the cost-recovery method by applying all payments received as a reduction to the outstanding principal balance until qualifying for return to accrual. Loans are returned to accrual status when all the principal and interest amounts contractually due are brought current and future payments are reasonably assured. The determination of future payments being reasonably assured varies depending on the circumstances present with the loan; however, the timely payment of contractual amounts owed for six consecutive months is a primary indicator. The authority to move loans into or out of accrual status is limited to senior Special Assets Officers and the Chief Credit Officer, though reclassification of certain loans may require approval of the Special Assets Loan Committee. Allowance for Loan and Lease Losses - Management’s determination of the adequacy of the ALLL is based on an evaluation of the composition of the loan portfolio, the value and adequacy of collateral, current economic conditions, historical loan loss experience, reasonable and supportable forecasts, and other risk factors. The ALLL is estimated using a loan-level PD/LGD method for all loans with the exception of its auto and third party consumer lending portfolios. For auto and third party consumer lending portfolios, the Company has elected to pool those loans based on similar risk characteristics to determine the ALLL using vintage and loss rate methods. While management uses available information to estimate expected losses on loans, future changes in the ALLL may be necessary based on changes in portfolio composition, portfolio credit quality, and/or economic conditions. Determining the Contractual Term Expected credit losses are estimated over the contractual term of the loans, adjusted for expected prepayments when appropriate. The contractual term excludes expected extensions, renewals, and modifications unless either of the following applies: management has a reasonable expectation at the reporting date that a troubled debt restructuring will be executed with an individual borrower or the extensions or renewal options are included in the original or modified contract at the reporting date and are not unconditionally legally cancelable by the Company. The Company’s ALLL measures the expected lifetime loss using pooled assumptions and loan-level details for financial assets that share common risk characteristics and evaluates an individual reserve in instances where the financial assets do not share the same risk characteristics. Collectively Assessed Reserve Consideration Loans that share common risk characteristics are considered collectively assessed. Loss estimates within the collectively assessed population are based on a combination of pooled assumptions and loan-level characteristics. Quantitative loss estimation models have been developed based largely on internal historical data at the loan and portfolio levels from 2005 through the current period and the economic conditions during the same time period. Expected losses for the Company’s collectively assessed loan segments are estimated using a number of quantitative methods including PD/LGD, Vintage, and Loss Rate. As part of its qualitative framework, the Company evaluates its current underwriting standards, geographic footprint, national and international current and forecasted economic conditions, expected government stimulus, and other factors to estimate the impact that changes in these factors may have on expected loan losses. The Company’s ALLL for the current period is based on a two-year reasonable and supportable forecast period with a straight-line reversion over the next two years to long-term average loss factors. Individually Assessed Reserve Consideration Loans that do not share risk characteristics are evaluated on an individual basis. The individual reserve component relates to loans that have shown substantial credit deterioration as measured by risk rating and/or delinquency status. In addition, the Company has elected the practical expedient that would include loans for individual assessment consideration if the repayment of the loan is expected substantially through the operation or sale of collateral because the borrower is experiencing financial difficulty. Where the source of repayment is the sale of collateral, the ALLL is based on the fair value of the underlying collateral, less selling costs, compared to the amortized cost basis of the loan. If the ALLL is based on the operation of the collateral, the reserve is calculated based on the fair value of the collateral calculated as the present value of expected cash flows from the operation of the collateral, compared to the amortized cost basis. If the Company determines that the value of a collateral dependent loan is less than the recorded investment in the loan, the Company charges off the deficiency if it is determined that such amount is deemed uncollectible. Typically, a loss is confirmed when the Company is moving toward foreclosure or final disposition. The Company obtains appraisals from a pre-approved list of independent, third party appraisers located in the market in which the collateral is located. The Company’s approved appraiser list is continuously maintained by the Company’s REVG to ensure the list only includes such appraisers that have the experience, reputation, character, and knowledge of the respective real estate market. At a minimum, it is ascertained that the appraiser is currently licensed in the state in which the property is located, experienced in the appraisal of properties similar to the property being appraised, has knowledge of current real estate market conditions and financing trends, and is reputable. The Company’s internal REVG, which reports to the Enterprise Risk Management group, performs either a technical or administrative review of all appraisals obtained in accordance with the Company’s Appraisal Policy. The Appraisal Policy mirrors the Federal regulations governing appraisals, specifically the Interagency Appraisal and Evaluation Guidelines and FIRREA. A technical review will ensure the overall quality of the appraisal, while an administrative review ensures that all of the required components of an appraisal are present. Independent appraisals or valuations are obtained on all individually assessed loans, as well as updated every twelve months for all individually assessed loans. Adjustments to real estate appraised values are only permitted to be made by the REVG. The individually assessed analysis is reviewed and approved by senior Credit Administration officers and the Special Assets Loan Committee. External valuation sources are the primary source to value collateral dependent loans; however, the Company may also utilize values obtained through other valuation sources. These alternative sources of value are used only if deemed to be more representative of value based on updated information regarding collateral resolution. The ALLL on loans individually assessed is updated, reviewed, and approved on a quarterly basis at or near the end of each reporting period. The Company performs regular credit reviews of the loan portfolio to review the credit quality and adherence to its underwriting standards. The credit reviews include annual commercial loan reviews performed by the Company’s commercial bankers in accordance with CLP, relationship reviews that accompany annual loan renewals, and independent reviews by its Loan Review Group. Upon origination, each commercial loan is assigned a risk rating ranging from one to nine, with loans closer to one having less risk. This risk rating scale is the Company’s primary credit quality indicator. Consumer loans are not risk rated unless past due status, bankruptcy, or other event results in the assignment of a Substandard or worse risk rating in accordance with the consumer loan policy. Governance The Company’s Allowance Committee, which reports to the Audit Committee and contains representatives from both the Company’s finance and risk teams, is responsible for approving the Company’s estimate of expected credit losses and resulting ALLL. The Allowance Committee considers the quantitative model results and qualitative factors when approving the final ALLL. The Company’s ALLL model is subject to the Company’s models risk management program which is overseen by the Model Risk Management Committee which reports to the Company’s Board Risk Committee. Acquired Loans – The Company has purchased loans, some of which have experienced more than insignificant credit deterioration since origination. Acquired loans are recorded at their fair value at acquisition date without carryover of the acquiree’s previously established ALLL, as credit discounts are included in the determination of fair value. The fair value of the loans is determined using market participant assumptions in estimating the amount and timing of both principal and interest cash flows expected to be collected on the loans and then applying a market-based discount rate to those cash flows. During evaluation upon acquisition, acquired loans are also classified as either or PCD or acquired performing. The acquired loans are subject to the Company’s ALLL Policy upon acquisition. Acquired performing loans are accounted for under ASC 310-20, Receivables – Nonrefundable Fees and Other Costs PCD loans reflect loans that have experienced more-than-insignificant credit deterioration since origination, as it is probable at acquisition that the Company will not be able to collect all contractually required payments. These PCD loans are accounted for under ASC 326 . The PCD loans are segregated into pools based on loan type and credit risk. Loan type is determined based on collateral type, purpose, and lien position. Credit risk characteristics include risk rating groups, nonaccrual status, and past due status. For valuation purposes, these pools are further disaggregated by maturity, pricing characteristics, and re-payment structure. ​ PCD loans are recorded at the amount paid. An ALLL is determined using the same methodology as other loans held for investment. The initial ALLL is determined on a collective basis and is allocated to individual loans. The sum of the loan's purchase price and ALLL becomes its initial amortized cost basis. The difference between the initial amortized cost basis and the par value of the loan is a noncredit discount or premium, which is amortized into interest income over the life of the loan. Subsequent changes to the ALLL are recorded through provision expense. ​ Troubled Debt Restructurings - The Company reviews previously restructured loans quarterly in order to determine whether any have performed, subsequent to the restructure, at a level that would allow for them to be removed from reportable TDR status. The Company generally would consider a change in this classification if the borrower is no longer experiencing financial difficulty, the loan is current or less than 30 days past due at the time the status change is being considered, and the loan has performed under the restructured terms for a consecutive twelve-month period. A loan may also be considered for removal from TDR status as a result of a subsequent restructure under certain restrictive circumstances. The removal of TDR designations must be approved by the Company's Special Asset Loan Committee. Loan modifications made under the March 22 Joint Guidance and CARES Act, as amended by the CAA, were suspended from TDR evaluation. Reserve for Unfunded Commitments - ​ Accrued Interest Receivable - The Company has elected to exclude accrued interest from the amortized cost basis in its determination of the ALLL, as well as the ACL reserve for securities. Accrued interest receivable totaled $56.7 million on loans held for investment, $6.8 million on HTM securities, and $11.9 million on AFS securities at December 31, 2020 and is included in “Other Assets” on the Company’s Consolidated Balance Sheets. The Company’s policy is to write off accrued interest receivable through reversal of interest income when it becomes probable the Company will not be able to collect the accrued interest. For the year ended December 31, 2020, accrued interest receivable write offs were not material to the Company’s consolidated financial statements. ​ Premises and Equipment - Goodwill and Intangible Assets - Goodwill and Other Intangible Assets, Intangible assets with definite useful lives are amortized over their estimated useful lives, which range from 4 to 10 years, to their estimated residual values. Long-lived assets, including purchased intangible assets subject to amortization, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of an asset to estimated undiscounted future cash flows expected to be generated by the asset. If the carrying amount of an asset exceeds its estimated future cash flows, an impairment charge is recognized in the amount by which the carrying amount of the asset exceeds the fair value of the asset. Assets to be disposed of would be separately presented on the Company’s Consolidated Balance Sheets and reported at the lower of the carrying amount or fair value less costs to sell, would no longer depreciated. Management concluded that no circumstances indicating an impairment of these assets existed as of the balance sheet date. The Company performs the analysis annually on April 30 of each year at the reporting unit level whereby the Company compares the estimated fair value of the reporting unit to its carrying value. If the estimated fair value of a reporting unit exceeds its carrying value, goodwill is not considered impaired. The Company engaged a third-party valuation specialist to assist management in performing its annual goodwill impairment analysis. The last goodwill impairment analysis was conducted on April 30, 2020. To determine the fair value of a reporting unit, the Company utilizes a combination of two separate quantitative methods, the market value approach, which considers comparable publicly-traded companies, and the income approach which estimates future cash flows. Critical assumptions that are used as part of these calculations include: the selection of comparable publicly-traded companies and selection of market comparable acquisition transactions. In addition, other key assumptions include the discount rate, the forecast of future earnings and cash flows of the reporting unit, economic conditions, which impact the assumptions related to interest and growth rates, and loss rates, the cost savings expected to be realized by a market participant, the control premium associated with the reporting unit and a relative weight given to the valuations derived by the two valuation methods. At April 30, 2020, the Company determined that there was no impairment to its goodwill. The Company performed a sensitivity analysis on key assumptions and noted the 2020 forecast was significantly impacted by the uncertain factors associated with COVID-19, as well as macro-economic factors such as the interest rate forecasts and unemployment factors. Management also performed an additional qualitative review through December 31, 2020, and concluded that no impairment existed as of the balance sheet date. Foreclosed Properties Transfers of Financial Assets Bank Owned Life Insurance Derivatives accruals on derivatives related to hedges are recorded as adjustments to the interest income or interest expense associated with the hedged item. During the life of the hedge, the Company formally assesses whether derivatives designated as hedging instruments continue to be highly effective in offsetting changes in the fair value or cash flows of hedged items. If it is determined that a hedge has ceased to be highly effective, the Company will discontinue hedge accounting prospectively. At such time, previous adjustments to the carrying value of the hedged item are reversed into current earnings and the derivative instrument is reclassified to a trading position recorded at fair value. During the normal course of business, the Company enters into commitments to originate mortgage loans whereby the interest rate on the loan is determined prior to funding (“rate lock commitments”). For commitments issued in connection with potential loans intended for sale, the Bank enters into positions of forward month mortgage-backed securities to be announced (“TBA”) contracts on a mandatory basis or on a one-to-one forward sales contract on a best efforts basis. The Company enters into TBA contracts in order to control interest rate risk during the period between the rate lock commitment and mandatory sale of the mortgage loan. Both the rate lock commitment and the forward TBA contract is considered a derivative. A mortgage loan sold on a best efforts basis is locked into a forward sales contract with a counterparty on the same day as the rate lock commitment to control interest rate risk during the period between the commitment and the sale of the mortgage loan. Both the rate lock commitment and the forward sales contract are considered a derivative. As of December 31, 2018, there were no mortgage banking derivatives due to the wind down of UMG. Mortgage banking derivatives as of December 31, 2020 and 2019 did not have a material impact on the Company’s Consolidated Financial Statements. The market values of rate lock commitments and best efforts forward delivery commitments is not readily ascertainable with precision because rate lock commitments and best efforts contracts are not actively traded in stand-alone markets. The Company determines the fair value of rate lock commitments, delivery contracts, and forward sales contracts of MBS by measuring the change in the value of the underlying asset, while taking into consideration the probability that the rate lock commitments will close or will be funded. Certain risks arise from the forward delivery contracts in that the counterparties to the contracts may not be able to meet the terms of the contracts. Additional risks inherent in mandatory delivery programs include the risk that, if the Company does not close the loans subject to rate lock commitments, it will still be obligated to deliver MBS to the counterparty under the forward sales agreement. Affordable Housing Entities - The Company invests in private investment funds that make equity investments in multifamily affordable housing properties that provide affordable housing and historic tax credits for these investments. The activities of these entities are financed with a combination of invested equity capital and debt. The Company accounts for its affordable housing entities using the proportional amortization method. Under the proportional amortization method, the Company amortizes the initial cost of the investment in proportion to the tax credits and other tax benefits received, and recognizes the net investment performance in the income statement as a component of income tax expense (benefit). For the years ended December 31, 2020 and 2019, the Company recognized amortization of $3.0 million and $1.9 million, respectively, and tax credits and tax savings of $3.6 million and $2.9 million, respectively, associated with these investments within “Income tax expense” on the Company’s Consolidated Statements of Income. The carrying value of the Company’s investments in these qualified affordable housing projects were $38.5 million and $29.6 million for the years ended December 31, 2020 and 2019, respectively. At December 31, 2020 and 2019, the Company’s recorded liability totaled $19.1 million and $12.0 million, respectively, for the related unfunded commitments, which are expected to be paid throughout the years 2021 - 2033. ​ Stock Compensation Plan The Company did not issue stock op

ACQUISITIONS

ACQUISITIONS	12 Months Ended
	Dec. 31, 2020
ACQUISITIONS [Abstract]
ACQUISITIONS	2. ACQUISITIONS Access Acquisition On February 1, 2019, the Company completed its acquisition of Access National Corporation (and its subsidiaries), a bank holding company based in Reston, Virginia. Holders of shares of Access’s common stock received 0.75 shares of the Company’s common stock in exchange for each share of Access’s common stock, resulting in the Company issuing 15,842,026 shares of the Company’s common stock at a fair value of approximately $500.0 million. In addition, the Company paid cash of approximately $12,000 in lieu of fractional shares. The transaction was accounted for using the acquisition method of accounting and, accordingly, assets acquired, liabilities assumed, and consideration exchanged were recorded at estimated fair values on the acquisition date. Fair values are preliminary and subject to refinement for up to one year after the closing date of the acquisition, in accordance with ASC 350. The measurement period was formally closed as of February 1, 2020, and the Company did not make any measurement period adjustments in 2020. There were no merger-related costs associated with the acquisition of Access for the year ended December 31, 2020. Merger-related costs associated with the acquisition of Access were $26.2 million for the year ended December 31, 2019. Such costs include legal and accounting fees, lease and contract termination expenses, system conversion, and employee severances, which have been expensed as incurred.

SECURITIES

SECURITIES	12 Months Ended
	Dec. 31, 2020
Securities [Abstract]
SECURITIES	3. SECURITIES On January 1, 2020, the Company adopted ASC 326, which made changes to the accounting for AFS debt securities whereby credit losses should be presented as an allowance, rather than as a write-down when management does not intend to sell and does not believe that it is more likely than not they will be required to sell prior to maturity. In addition, ASC 326 requires financial assets measured at amortized cost, including held-to-maturity debt securities, to measure an expected credit loss under the CECL methodology that requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. For further discussion on the Company’s accounting policies and policy elections related to the accounting standard update refer to Note 1 “Summary of Significant Accounting Policies”. ​ All securities information presented as of December 31, 2020 is in accordance with ASC 326. All securities information presented prior to January 1, 2020 is in accordance with previous applicable GAAP. See the Company’s prior accounting policies in Note 1 “Summary of Significant Accounting Policies” of the Company’s Annual Report on Form 10-K for the year ended December 31, 2019. Available for Sale The Company’s AFS investment portfolio is generally highly-rated or agency backed. All AFS securities were current with no securities past due or on non-accrual as of December 31, 2020. ​ The amortized cost, gross unrealized gains and losses, and estimated fair values of AFS securities as of December 31, 2020 are summarized as follows (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Amortized ​ Gross Unrealized ​ Estimated ​ Cost Gains (Losses) Fair Value December 31, 2020 ​ ​ ​ ​ ​ U.S. government and agency securities ​ $ 13,009 ​ $ 437 ​ $ (52) ​ $ 13,394 Obligations of states and political subdivisions ​ 786,466 ​ 50,878 ​ (18) ​ 837,326 Corporate and other bonds (1) ​ 148,747 ​ 2,430 ​ (99) ​ 151,078 Commercial mortgage-backed securities ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Agency ​ ​ 321,015 ​ 16,277 ​ (2) ​ ​ 337,290 Non-agency ​ ​ 51,244 ​ 167 ​ (17) ​ ​ 51,394 Total commercial mortgage-backed securities ​ ​ 372,259 ​ 16,444 ​ (19) ​ ​ 388,684 Residential mortgage-backed securities ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Agency ​ ​ 1,012,237 ​ 31,816 ​ (1,946) ​ ​ 1,042,107 Non-agency ​ ​ 104,904 ​ 1,507 ​ (206) ​ ​ 106,205 Total residential mortgage-backed securities ​ ​ 1,117,141 ​ 33,323 ​ (2,152) ​ ​ 1,148,312 Other securities ​ 1,625 ​ — ​ — ​ 1,625 Total AFS securities ​ $ 2,439,247 ​ $ 103,512 ​ $ (2,340) ​ $ 2,540,419 (1) Other bonds includes asset-backed securities. ​ The amortized cost, gross unrealized gains and losses, and estimated fair values of AFS securities as of December 31, 2019 are summarized as follows (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Amortized ​ Gross Unrealized ​ Estimated ​ Cost Gains (Losses) Fair Value December 31, 2019 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ U.S. government and agency securities ​ $ 21,149 ​ $ 209 ​ $ (38) ​ $ 21,320 Obligations of states and political subdivisions ​ ​ 421,344 ​ ​ 25,776 ​ ​ (29) ​ ​ 447,091 Corporate and other bonds (1) ​ 134,342 ​ 1,991 ​ (374) ​ 135,959 Commercial mortgage-backed securities ​ ​ ​ ​ ​ ​ ​ ​ Agency ​ ​ 405,731 ​ ​ 8,786 ​ ​ (619) ​ ​ 413,898 Non-agency ​ ​ 11,173 ​ ​ — ​ ​ (24) ​ ​ 11,149 Total commercial mortgage-backed securities ​ ​ 416,904 ​ ​ 8,786 ​ ​ (643) ​ ​ 425,047 Residential mortgage-backed securities ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Agency ​ ​ 852,300 ​ ​ 16,680 ​ ​ (816) ​ ​ 868,164 Non-agency ​ ​ 44,309 ​ ​ 476 ​ ​ — ​ ​ 44,785 Total residential mortgage-backed securities ​ ​ 896,609 ​ ​ 17,156 ​ ​ (816) ​ ​ 912,949 Other securities ​ 3,079 ​ — ​ — ​ 3,079 Total AFS securities ​ $ 1,893,427 ​ $ 53,918 ​ $ (1,900) ​ $ 1,945,445 (1) Other bonds includes asset-backed securities. ​ The following table shows the gross unrealized losses and fair value of the Company’s AFS securities with unrealized losses for which an ACL has not been recorded at December 31, 2020 and that are not deemed to be OTTI as of December 31, 2019. These are aggregated by investment category and length of time that the individual securities have been in a continuous unrealized loss position (dollars in thousands). ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Less than 12 months ​ More than 12 months ​ Total ​ Fair Unrealized Fair Unrealized Fair Unrealized ​ ​ Value ​ Losses ​ Value ​ Losses ​ Value ​ Losses December 31, 2020 ​ ​ ​ ​ ​ ​ U.S. government and agency securities ​ $ — ​ $ — ​ $ 5,456 ​ $ (52) ​ $ 5,456 ​ ​ (52) Obligations of states and political subdivisions ​ ​ 5,091 ​ ​ (18) ​ ​ — ​ ​ — ​ ​ 5,091 ​ $ (18) Corporate and other bonds (1) ​ 17,946 ​ (52) ​ 10,698 ​ (47) ​ 28,644 ​ (99) Commercial mortgage-backed securities ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Agency ​ ​ 5,893 ​ ​ (2) ​ ​ 376 ​ ​ — ​ ​ 6,269 ​ ​ (2) Non-agency ​ ​ 17,654 ​ ​ (17) ​ ​ — ​ ​ — ​ ​ 17,654 ​ ​ (17) Total commercial mortgage-backed securities ​ ​ 23,547 ​ ​ (19) ​ ​ 376 ​ ​ — ​ ​ 23,923 ​ ​ (19) Residential mortgage-backed securities ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Agency ​ ​ 219,388 ​ ​ (1,944) ​ ​ 1,055 ​ ​ (2) ​ ​ 220,443 ​ ​ (1,946) Non-agency ​ ​ 36,942 ​ ​ (206) ​ ​ — ​ ​ — ​ ​ 36,942 ​ ​ (206) Total residential mortgage-backed securities ​ ​ 256,330 ​ ​ (2,150) ​ ​ 1,055 ​ ​ (2) ​ ​ 257,385 ​ ​ (2,152) Total AFS securities ​ $ 302,914 ​ $ (2,239) ​ $ 17,585 ​ $ (101) ​ $ 320,499 ​ $ (2,340) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019 ​ ​ ​ ​ ​ ​ U.S. government and agency securities ​ $ 7,638 ​ $ (38) ​ $ — ​ $ — ​ $ 7,638 ​ $ (38) Obligations of states and political subdivisions ​ ​ 4,526 ​ ​ (29) ​ ​ — ​ ​ — ​ ​ 4,526 ​ ​ (29) Corporate and other bonds (1) ​ 17,323 ​ (83) ​ 19,901 ​ (291) ​ 37,224 ​ (374) Commercial mortgage-backed securities ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Agency ​ ​ 43,552 ​ ​ (530) ​ ​ 14,966 ​ ​ (89) ​ ​ 58,518 ​ ​ (619) Non-agency ​ ​ 11,162 ​ ​ (24) ​ ​ — ​ ​ — ​ ​ 11,162 ​ ​ (24) Total commercial mortgage-backed securities ​ ​ 54,714 ​ ​ (554) ​ ​ 14,966 ​ ​ (89) ​ ​ 69,680 ​ ​ (643) Residential mortgage-backed securities ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Agency ​ ​ 114,147 ​ ​ (500) ​ ​ 40,168 ​ ​ (316) ​ ​ 154,315 ​ ​ (816) Non-agency ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total residential mortgage-backed securities ​ ​ 114,147 ​ ​ (500) ​ ​ 40,168 ​ ​ (316) ​ ​ 154,315 ​ ​ (816) Total AFS securities ​ $ 198,348 ​ $ (1,204) ​ $ 75,035 ​ $ (696) ​ $ 273,383 ​ $ (1,900) ​ (1) Other bonds includes asset-backed securities ​ As of December 31, 2020, there were $17.6 million or 15 instances of individual AFS securities that had been in a continuous loss position for more than 12 months and had an aggregate unrealized loss of $101,000. As of December 31, 2019, there were $75.0 million or 47 instances of individual securities that had been in a continuous loss position for more than 12 months and had an aggregate unrealized loss of $696,000. The Company has evaluated AFS securities in an unrealized loss position for credit related impairment at December 31, 2020 and 2019 and concluded no impairment existed based on several factors which included: (1) the majority of these securities are of high credit quality, (2) unrealized losses are primarily the result of market volatility, (3) the contractual terms of the investments do not permit the issuer(s) to settle the securities at a price less than the cost basis of each investment, (4) issuers continue to make timely principal and interest payments, and (5) the Company does not intend to sell any of the investments and the accounting standard of “more likely than not” has not been met for the Company to be required to sell any of the investments before recovery of its amortized cost basis. ​ Additionally, the majority of the Company’s mortgage-backed securities are issued by FNMA, FHLMC, and GNMA and do not have credit risk given the implicit and explicit government guarantees associated with these agencies. In addition, the non-agency mortgage-backed and asset-backed securities generally received a 20% SSFA rating. ​ The following table presents the amortized cost and estimated fair value of AFS securities as of December 31, 2020 and 2019, by contractual maturity (dollars in thousands). Expected maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020 ​ December 31, 2019 ​ Amortized Estimated Amortized Estimated ​ ​ Cost ​ Fair Value ​ Cost ​ Fair Value Due in one year or less ​ $ 19,875 ​ $ 19,997 ​ $ 35,177 ​ $ 35,329 Due after one year through five years ​ 161,448 ​ 169,103 ​ 164,605 ​ 166,873 Due after five years through ten years ​ 235,021 ​ 242,791 ​ 249,713 ​ 254,790 Due after ten years ​ 2,022,903 ​ 2,108,528 ​ 1,443,932 ​ 1,488,453 Total AFS securities ​ $ 2,439,247 ​ $ 2,540,419 ​ $ 1,893,427 ​ $ 1,945,445 ​ Refer to Note 10 "Commitments and Contingencies" for information regarding the estimated fair value of AFS securities that were pledged to secure public deposits, repurchase agreements, and for other purposes as permitted or required by law as of December 31, 2020 and 2019. Held to Maturity The Company’s HTM investment portfolio primarily consists of highly-rated municipal securities. The Company’s HTM securities were all current, with no securities past due or on non-accrual at December 31, 2020. ​ The Company reports HTM securities on the Company’s Consolidated Balance Sheets at carrying value. Carrying value is amortized cost, which includes any unamortized unrealized gains and losses recognized in accumulated other comprehensive income prior to reclassifying the securities from AFS securities to HTM securities. Investment securities transferred into the HTM category from the AFS category are recorded at fair value at the date of transfer. The unrealized holding gain or loss at the date of transfer is retained in accumulated other comprehensive income and in the carrying value of the HTM securities. Such unrealized gains or losses are accreted over the remaining life of the security with no impact on future net income. ​ The carrying value, gross unrealized gains and losses, and estimated fair values of HTM securities as of December 31, 2020 are summarized as follows (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Carrying ​ Gross Unrealized ​ Estimated ​ Value Gains (Losses) ​ Fair Value December 31, 2020 ​ ​ ​ ​ ​ U.S. government and agency securities ​ $ 2,751 ​ $ — ​ $ (18) ​ $ 2,733 Obligations of states and political subdivisions ​ ​ 536,767 ​ ​ 74,978 ​ ​ — ​ ​ 611,745 Commercial mortgage-backed securities ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Agency ​ ​ 5,333 ​ ​ 4 ​ ​ (50) ​ ​ 5,287 Non-agency ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total commercial mortgage-backed securities ​ ​ 5,333 ​ ​ 4 ​ ​ (50) ​ ​ 5,287 Total held-to-maturity securities ​ $ 544,851 ​ $ 74,982 ​ $ (68) ​ $ 619,765 ​ ​ The carrying value, gross unrealized gains and losses, and estimated fair values of HTM securities as of December 31, 2019 are summarized as follows (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Carrying ​ Gross Unrealized ​ Estimated ​ Value Gains (Losses) Fair Value December 31, 2019 ​ ​ ​ ​ U.S. government and agency securities ​ $ 2,813 ​ $ 26 ​ $ — ​ $ 2,839 Obligations of states and political subdivisions ​ ​ 545,148 ​ ​ 48,274 ​ ​ — ​ ​ 593,422 Commercial mortgage-backed securities ​ ​ ​ ​ ​ ​ ​ ​ ​ Agency ​ ​ 7,183 ​ ​ 59 ​ ​ — ​ ​ 7,242 Non-agency ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total commercial mortgage-backed securities ​ ​ 7,183 ​ ​ 59 ​ ​ — ​ ​ 7,242 Total held-to-maturity securities ​ $ 555,144 ​ $ 48,359 ​ $ — ​ $ 603,503 ​ Credit Quality Indicators & Allowance for Credit Losses - HTM For HTM securities, the Company evaluates the credit risk of its securities on at least a quarterly basis. The Company estimates expected credit losses on HTM debt securities on an individual basis based on the PD/LGD methodology primarily using security-level credit ratings. The Company’s HTM securities ACL was immaterial at the adoption of ASC 326. The Company re-evaluated the HTM securities ACL and concluded no additional reserve was needed at December 31, 2020. The primary indicators of credit quality for the Company’s HTM portfolio are security type and credit rating, which is influenced by a number of factors including obligor cash flow, geography, seniority, and others. The Company’s only HTM securities with credit risk are obligations of states and political subdivisions ​ The following table presents the amortized cost of HTM securities as of December 31, 2020 by security type and credit rating (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ U.S. Government and Agency Obligations of states and political Mortgage-backed Total HTM ​ ​ securities ​ subdivisions ​ securities ​ securities Credit Rating: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ AAA/AA/A ​ $ — ​ $ 532,157 ​ $ — ​ $ 532,157 Not Rated - Agency (1) ​ ​ 2,751 ​ ​ — ​ ​ 5,333 ​ ​ 8,084 Not Rated - Non-Agency ​ ​ — ​ 4,610 ​ ​ — ​ ​ 4,610 Total ​ $ 2,751 ​ $ 536,767 ​ $ 5,333 ​ $ 544,851 (1) Generally considered not to have credit risk given the government guarantees associated with these agencies ​ ​ The following table presents the amortized cost and estimated fair value of HTM securities as of December 31, 2020 and 2019, by contractual maturity (dollars in thousands). Expected maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020 ​ December 31, 2019 ​ Carrying Estimated Carrying Estimated ​ ​ Value ​ Fair Value ​ Value ​ Fair Value Due in one year or less ​ $ 1,443 ​ $ 1,460 ​ $ 502 ​ $ 504 Due after one year through five years ​ 8,577 ​ 8,893 ​ 10,258 ​ 10,539 Due after five years through ten years ​ 1,744 ​ 1,805 ​ 1,768 ​ 1,800 Due after ten years ​ 533,087 ​ 607,607 ​ 542,616 ​ 590,660 Total HTM securities ​ $ 544,851 ​ $ 619,765 ​ $ 555,144 ​ $ 603,503 ​ Refer to Note 10 "Commitments and Contingencies" for information regarding the estimated fair value of HTM securities that were pledged to secure public deposits as permitted or required by law as of December 31, 2020 and December 31, 2019. Restricted Stock, at cost Due to restrictions placed upon the Bank’s common stock investment in the FRB and the FHLB, these securities have been classified as restricted equity securities and carried at cost. These restricted securities are not subject to the investment security classifications and are included as a separate line item on the Company’s Consolidated Balance Sheets. Restricted equity securities consist of FRB stock in the amount of $67.0 million for December 31, 2020 and 2019, and FHLB stock in the amount of $27.8 million and $63.9 million as of December 31, 2020 and 2019, respectively. Realized Gains and Losses The following table presents the gross realized gains and losses on and the proceeds from the sale of securities during the years ended December 31, 2020, 2019, and 2018 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020 2019 2018 Realized gains (losses): ​ ​ ​ ​ ​ ​ ​ ​ ​ Gross realized gains $ 12,522 $ 9,530 $ 4,221 Gross realized losses ​ (228) ​ (1,855) ​ (3,838) Net realized gains $ 12,294 $ 7,675 $ 383 Proceeds from sales of securities $ 257,945 $ 514,070 $ 515,764 ​

LOANS AND ALLOWANCE FOR LOAN LO

LOANS AND ALLOWANCE FOR LOAN LOSSES	12 Months Ended
	Dec. 31, 2020
Loans and Allowance for Loan Losses [Abstract]
LOANS AND ALLOWANCE FOR LOAN LOSSES	4. LOANS AND ALLOWANCE FOR LOAN AND LEASE LOSSES On January 1, 2020, the Company adopted ASC 326. The measurement of expected credit losses under the CECL methodology is applicable to financial assets measured at amortized cost, including loan receivables. For further discussion on the Company’s accounting policies and policy elections related to the accounting standard update refer to Note 1 “Summary of Significant Accounting Policies” in this Form 10-K. All loan information presented as of December 31, 2020 is in accordance with ASC 326. All loan information presented prior to January 1, 2020 is in accordance with previous applicable GAAP. ​ During March 2020, the United States President declared a national emergency in response to COVID-19. The CARES Act was passed by the U.S. Congress and the March 22 Joint Guidance was issued, both in March of 2020, and both provided enhanced guidelines and accounting for COVID-19 related modifications, as well as provided relief for TDR designations and also provided guidance on past due reporting for modified loans. On December 27, 2020, certain provisions of the CARES Act were extended as a result of the CAA. For further discussion on the CARES Act, as amended by the CAA, and the March 22 Joint Guidance and related loan impact refer to Note 1 “Summary of Significant Accounting Polices” in this Form 10-K. The information included below reflects the impact of the CARES Act, as amended by the CAA, and the March 22 Joint Guidance. ​ Loans are stated at their face amount, net of deferred fees and costs, and consist of the following at December 31, 2020 and 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020 2019 Construction and Land Development ​ $ 925,798 ​ $ 1,250,924 Commercial Real Estate - Owner Occupied ​ 2,128,909 ​ 2,041,243 Commercial Real Estate - Non-Owner Occupied ​ 3,657,562 ​ 3,286,098 Multifamily Real Estate ​ 814,745 ​ 633,743 Commercial & Industrial (1) ​ 3,263,460 ​ 2,114,033 Residential 1-4 Family - Commercial ​ 671,949 ​ 724,337 Residential 1-4 Family - Consumer ​ 822,866 ​ 890,503 Residential 1-4 Family - Revolving ​ 596,996 ​ 659,504 Auto ​ 401,324 ​ 350,419 Consumer ​ 247,730 ​ 372,853 Other Commercial (1) ​ 489,975 ​ 287,279 Total loans held for investment, net of deferred fees and costs (2) ​ ​ 14,021,314 ​ ​ 12,610,936 Allowance for loan and lease losses ​ ​ (160,540) ​ ​ (42,294) Total loans held for investment, net ​ $ 13,860,774 ​ $ 12,568,642 (1) Commercial & industrial and other commercial loans include approximately $1.2 billion and $11.3 million, respectively, in loans from the PPP loan program at December 31, 2020. (2) Total loans include unamortized premiums and discounts, and unamortized deferred fees and costs totaling $69.7 million and $69.8 million as of December 31, 2020 and December 31, 2019, respectively. The following table shows the aging of the Company’s loan portfolio, by class, at December 31, 2020 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Greater than ​ ​ ​ ​ ​ ​ ​ ​ ​ 30-59 Days ​ 60-89 Days ​ 90 Days and ​ ​ ​ ​ ​ ​ ​ ​ Current ​ Past Due ​ Past Due ​ still Accruing ​ Nonaccrual ​ Total Loans Construction and Land Development ​ $ 920,276 ​ $ 1,903 ​ $ 547 ​ $ — ​ $ 3,072 ​ $ 925,798 Commercial Real Estate - Owner Occupied ​ 2,114,804 ​ 1,870 ​ 1,380 ​ 3,727 ​ 7,128 ​ 2,128,909 Commercial Real Estate - Non-Owner Occupied ​ 3,651,232 ​ 2,144 ​ 1,721 ​ 148 ​ 2,317 ​ 3,657,562 Multifamily Real Estate ​ 814,095 ​ 617 ​ — ​ — ​ 33 ​ 814,745 Commercial & Industrial ​ 3,257,201 ​ 1,848 ​ 1,190 ​ 1,114 ​ 2,107 ​ 3,263,460 Residential 1-4 Family - Commercial ​ 657,351 ​ 2,227 ​ 818 ​ 1,560 ​ 9,993 ​ 671,949 Residential 1-4 Family - Consumer ​ 792,852 ​ 10,182 ​ 1,533 ​ 5,699 ​ 12,600 ​ 822,866 Residential 1-4 Family - Revolving ​ 587,522 ​ 2,975 ​ 1,044 ​ 826 ​ 4,629 ​ 596,996 Auto ​ 398,206 ​ 2,076 ​ 376 ​ 166 ​ 500 ​ 401,324 Consumer ​ 245,551 ​ 1,166 ​ 550 ​ 394 ​ 69 ​ 247,730 Other Commercial ​ ​ 489,959 ​ ​ 16 ​ ​ — ​ ​ — ​ ​ — ​ ​ 489,975 Total loans held for investment ​ $ 13,929,049 ​ $ 27,024 ​ $ 9,159 ​ $ 13,634 ​ $ 42,448 ​ $ 14,021,314 ​ The following table shows the Company’s amortized cost basis of loans on nonaccrual status as of January 1, 2020 as well as amortized cost basis of loans on nonaccrual status and loans past due 90 days and still accruing as of December 31, 2020 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Nonaccrual ​ ​ ​ ​ ​ ​ ​ ​ January 1, 2020 ​ December 31, 2020 ​ Nonaccrual With No ALLL ​ 90 Days and still Accruing Construction and Land Development ​ $ 4,060 ​ $ 3,072 ​ $ 1,985 ​ $ — Commercial Real Estate - Owner Occupied ​ ​ 13,889 ​ ​ 7,128 ​ ​ 1,994 ​ ​ 3,727 Commercial Real Estate - Non-Owner Occupied ​ ​ 1,368 ​ ​ 2,317 ​ ​ — ​ ​ 148 Multifamily Real Estate ​ ​ — ​ ​ 33 ​ ​ — ​ ​ — Commercial & Industrial ​ ​ 3,037 ​ ​ 2,107 ​ ​ 1 ​ ​ 1,114 Residential 1-4 Family - Commercial ​ ​ 6,492 ​ ​ 9,993 ​ ​ 6,388 ​ ​ 1,560 Residential 1-4 Family - Consumer ​ ​ 13,117 ​ ​ 12,600 ​ ​ 1,069 ​ ​ 5,699 Residential 1-4 Family - Revolving ​ ​ 2,490 ​ ​ 4,629 ​ ​ 60 ​ ​ 826 Auto ​ ​ 565 ​ ​ 500 ​ ​ — ​ ​ 166 Consumer ​ ​ 88 ​ ​ 69 ​ ​ — ​ ​ 394 Other Commercial ​ ​ 98 ​ ​ — ​ ​ — ​ ​ — Total loans held for investment ​ $ 45,204 ​ $ 42,448 ​ $ 11,497 ​ $ 13,634 ​ There was no interest income recognized on nonaccrual loans during the year ended December 31, 2020. See Note 1 “Summary of Significant Accounting Policies” for additional information on the Company’s policies for nonaccrual loans. ​ Troubled Debt Restructurings ​ The CARES Act, as amended by the CAA, permits financial institutions to suspend requirements under GAAP for loan modifications to borrowers affected by COVID-19 that would otherwise be characterized as TDRs and suspend any determination related thereto if (i) the loan modification is made between March 1, 2020 and the earlier of January 1, 2022 or 60 days after the end of the COVID-19 emergency declaration and (ii) the applicable loan was not more than 30 days past due as of December 31, 2019. In addition, federal bank regulatory authorities have issued guidance to encourage financial institutions to make loan modifications for borrowers affected by COVID-19 and have assured financial institutions that they will neither receive supervisory criticism for such prudent loan modifications, nor be required by examiners to automatically categorize COVID-19-related loan modifications as TDRs. As of December 31, 2020, the Company had approximately $146.1 million in loans still under their modified terms. The Company’s modification program primarily included payment deferrals and interest only modifications. In addition to the above mentioned modifications, as of December 31, 2020, the Company has TDRs totaling $20.6 million with an estimated $1.6 million of allowance for those loans for the current period. ​ A modification of a loan’s terms constitutes a TDR if the creditor grants a concession that it would not otherwise consider to the borrower for economic or legal reasons related to the borrower’s financial difficulties. All loans that are considered to be TDRs are evaluated for credit losses in accordance with the Company’s ALLL methodology. For the year ended December 31, 2020, the recorded investment in TDRs prior to modifications was not materially impacted by the modifications. ​ The following table provides a summary, by class, of TDRs that continue to accrue interest under the terms of the applicable restructuring agreement, which are considered to be performing, and TDRs that have been placed on nonaccrual status, which are considered to be nonperforming, as of December 31, 2020 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020 ​ No. of Recorded Outstanding ​ ​ Loans ​ Investment ​ Commitment Performing ​ ​ Construction and Land Development 4 ​ $ 215 ​ $ — Commercial Real Estate - Owner Occupied 6 ​ 2,033 ​ 176 Commercial Real Estate - Non-Owner Occupied 1 ​ 1,089 ​ — Commercial & Industrial 4 ​ 727 ​ — Residential 1-4 Family - Commercial 3 ​ 245 ​ — Residential 1-4 Family - Consumer 77 ​ 8,943 ​ — Residential 1-4 Family - Revolving 3 ​ 277 ​ — Consumer 3 ​ 22 ​ — Other Commercial ​ 1 ​ ​ 410 ​ ​ — Total performing 102 ​ $ 13,961 ​ $ 176 Nonperforming ​ ​ Commercial Real Estate - Owner Occupied 1 ​ $ 20 ​ $ — Commercial Real Estate - Non-Owner Occupied ​ 1 ​ ​ 134 ​ ​ — Commercial & Industrial 3 ​ 237 ​ — Residential 1-4 Family - Commercial 4 ​ 1,296 ​ — Residential 1-4 Family - Consumer 23 ​ 4,865 ​ — Residential 1-4 Family - Revolving 3 ​ 103 ​ — Total nonperforming 35 ​ $ 6,655 ​ $ — Total performing and nonperforming 137 ​ $ 20,616 ​ $ 176 ​ The Company considers a default of a TDR to occur when the borrower is 90 days past due following the restructure or a foreclosure and repossession of the applicable collateral occurs. During the year ended December 31, 2020, the Company did not have any material loans that went into default that had been restructured in the twelve-month period prior to the time of default. ​ The following table shows, by class and modification type, TDRs that occurred during the year ended December 31, 2020 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ All Restructurings ​ ​ 2020 ​ ​ Recorded ​ ​ No. of ​ Investment at ​ ​ Loans ​ Period End Modified to interest only, at a market rate ​ Residential 1-4 Family - Commercial ​ 1 ​ $ 644 Total interest only at market rate of interest 1 ​ $ 644 ​ ​ ​ ​ ​ ​ Term modification, at a market rate ​ Commercial & Industrial 3 ​ $ 103 Residential 1-4 Family - Commercial 1 ​ ​ 294 Residential 1-4 Family - Consumer 4 ​ 320 Consumer ​ 1 ​ ​ 9 Total loan term extended at a market rate 9 ​ $ 726 ​ ​ ​ ​ ​ ​ Term modification, below market rate ​ Construction and Land Development ​ 1 ​ $ 34 Commercial & Industrial 2 ​ 355 Residential 1-4 Family - Commercial ​ 1 ​ ​ 287 Residential 1-4 Family - Consumer 18 ​ ​ 2,519 Residential 1-4 Family - Revolving 2 ​ 275 Total loan term extended at a below market rate 24 ​ $ 3,470 ​ ​ ​ ​ ​ ​ Interest rate modification, below market rate ​ Total interest only at below market rate of interest — ​ $ — ​ ​ ​ ​ ​ ​ Total 34 ​ $ 4,840 ​ ​ ​ Allowance for Loan and Lease Losses ​ ALLL on the loan portfolio is a material estimate for the Company. The Company estimates its ALLL on its loan portfolio on a quarterly basis. The Company models the ALLL using two primary segments, Commercial and Consumer. Within each segment, loan classes are further identified based on similar risk characteristics. The Company has identified the following classes within each segment: ● Commercial : Construction and Land Development, Commercial Real Estate – Owner Occupied, Commercial Real Estate – Non-Owner Occupied, Multifamily Real Estate, Commercial & Industrial, Residential 1-4 Family – Commercial, and Other Commercial ● Consumer : Residential 1-4 Family – Consumer, Residential 1-4 Family – Revolving, Auto, and Consumer ​ The following tables show the ALLL activity by segment for the year ended December 31, 2020 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, 2020 ​ ​ Commercial ​ Consumer ​ Total Balance at beginning of period ​ $ 30,941 ​ $ 11,353 ​ $ 42,294 Impact of ASC 326 adoption on non-PCD loans ​ 4,432 ​ 40,666 ​ 45,098 Impact of ASC 326 adoption on PCD loans ​ 1,752 ​ 634 ​ 2,386 Impact of adopting ASC 326 ​ 6,184 ​ 41,300 ​ 47,484 Loans charged-off ​ (6,671) ​ (11,522) ​ (18,193) Recoveries credited to allowance ​ 3,517 ​ 3,238 ​ 6,755 Provision charged to operations ​ 83,432 ​ (1,232) ​ 82,200 Balance at end of period ​ $ 117,403 ​ $ 43,137 ​ $ 160,540 ​ ​ Credit Quality Indicators ​ Credit quality indicators are utilized to help estimate the collectability of each loan class within the Commercial and Consumer segments. For classes of loans within the Commercial segment, the primary credit quality indicator used for evaluating credit quality and estimating the ALLL is risk rating categories of Pass, Watch, Special Mention, Substandard, and Doubtful. For classes of loans within the Consumer segment, the primary credit quality indicator used for evaluating credit quality and estimating the ALLL is delinquency bands of Current, 30-59, 60-89, 90+, and Nonaccrual. While other credit quality indicators are evaluated and analyzed as part of the Company’s credit risk management activities, these indicators are primarily used in estimating the ALLL. The Company evaluates the credit risk of its loan portfolio on at least a quarterly basis. ​ Commercial Loans ​ The Company uses a risk rating system as the primary credit quality indicator for classes of loans within the Commercial segment. The risk rating system on a scale of 0 through 9 is used to determine risk level as used in the calculation of the allowance for credit loss. The risk levels, as described below, do not necessarily follow the regulatory definitions of risk levels with the same name. A general description of the characteristics of the risk levels follows: ​ Pass is determined by the following criteria: ● Risk rated 0 loans have little or no risk and are with General Obligation Municipal Borrowers; ● Risk rated 1 loans have little or no risk and are generally secured by cash or cash equivalents; ● Risk rated 2 loans have minimal risk to well qualified borrowers and no significant questions as to safety; ● Risk rated 3 loans are satisfactory loans with strong borrowers and secondary sources of repayment; ● Risk rated 4 loans are satisfactory loans with borrowers not as strong as risk rated 3 loans and may exhibit a greater degree of financial risk based on the type of business supporting the loan. ​ ​ ​ Watch is determined by the following criteria: ● Risk rated 5 loans are watch loans that warrant more than the normal level of supervision and have the possibility of an event occurring that may weaken the borrower’s ability to repay; ​ Special Mention ● Risk rated 6 loans have increasing potential weaknesses beyond those at which the loan originally was granted and if not addressed could lead to inadequately protecting the Company’s credit position. ​ Substandard is determined by the following criteria: ● Risk rated 7 loans are substandard loans and are inadequately protected by the current sound worth or paying capacity of the obligor or the collateral pledged; these have well defined weaknesses that jeopardize the liquidation of the debt with the distinct possibility the Company will sustain some loss if the deficiencies are not corrected. ​ Doubtful is determined by the following criteria: ● Risk rated 8 loans are doubtful of collection and the possibility of loss is high but pending specific borrower plans for recovery, its classification as a loss is deferred until its more exact status is determined; ● Risk rated 9 loans are loss loans which are considered uncollectable and of such little value that their continuance as bankable assets is not warranted. ​ The table below details the amortized cost of the classes of loans within the Commercial segment by risk level and year of origination as of December 31, 2020 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020 ​ ​ ​ Term Loans Amortized Cost Basis by Origination Year ​ ​ ​ ​ ​ ​ ​ ​ 2020 ​ 2019 ​ 2018 ​ 2017 ​ 2016 ​ Prior ​ Revolving Loans ​ Total Construction and Land Development ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 316,585 ​ $ 277,142 ​ $ 116,800 ​ $ 24,770 ​ $ 42,970 ​ $ 54,023 ​ $ 23,324 ​ $ 855,614 Watch ​ ​ 1,873 ​ ​ 18,181 ​ ​ 8,434 ​ ​ 344 ​ ​ 2,355 ​ ​ 6,372 ​ ​ 412 ​ ​ 37,971 Special Mention ​ ​ — ​ ​ 5,532 ​ ​ 135 ​ ​ — ​ ​ — ​ ​ 2,655 ​ ​ — ​ ​ 8,322 Substandard ​ ​ — ​ ​ — ​ ​ 17,780 ​ ​ 64 ​ ​ 2,037 ​ ​ 4,010 ​ ​ — ​ ​ 23,891 Total Construction and Land Development ​ $ 318,458 ​ $ 300,855 ​ $ 143,149 ​ $ 25,178 ​ $ 47,362 ​ $ 67,060 ​ $ 23,736 ​ $ 925,798 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial Real Estate - Owner Occupied ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 286,522 ​ $ 375,541 ​ $ 300,583 ​ $ 233,359 ​ $ 128,261 ​ $ 570,361 ​ $ 18,838 ​ $ 1,913,465 Watch ​ ​ 1,942 ​ ​ 14,611 ​ ​ 22,224 ​ ​ 15,623 ​ ​ 24,979 ​ ​ 41,361 ​ ​ 1,648 ​ ​ 122,388 Special Mention ​ ​ 988 ​ ​ 6,052 ​ ​ 5,749 ​ ​ 4,198 ​ ​ 9,907 ​ ​ 30,455 ​ ​ 1,121 ​ ​ 58,470 Substandard ​ ​ — ​ ​ 4,858 ​ ​ 5,159 ​ ​ 914 ​ ​ 1,555 ​ ​ 21,101 ​ ​ 999 ​ ​ 34,586 Total Commercial Real Estate - Owner Occupied ​ $ 289,452 ​ $ 401,062 ​ $ 333,715 ​ $ 254,094 ​ $ 164,702 ​ $ 663,278 ​ $ 22,606 ​ $ 2,128,909 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial Real Estate - Non-Owner Occupied ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 381,849 ​ $ 455,427 ​ $ 433,183 ​ $ 403,677 ​ $ 336,630 ​ $ 850,035 ​ $ 30,421 ​ $ 2,891,222 Watch ​ ​ 28,354 ​ ​ 142,279 ​ ​ 76,838 ​ ​ 59,451 ​ ​ 79,533 ​ ​ 224,944 ​ ​ 16,870 ​ ​ 628,269 Special Mention ​ ​ 702 ​ ​ 11,072 ​ ​ 34,905 ​ ​ 18,073 ​ ​ 40,771 ​ ​ 11,211 ​ ​ 723 ​ ​ 117,457 Substandard ​ ​ 246 ​ ​ — ​ ​ 13,357 ​ ​ — ​ ​ 25 ​ ​ 6,986 ​ ​ — ​ ​ 20,614 Total Commercial Real Estate - Non-Owner Occupied ​ $ 411,151 ​ $ 608,778 ​ $ 558,283 ​ $ 481,201 ​ $ 456,959 ​ $ 1,093,176 ​ $ 48,014 ​ $ 3,657,562 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial & Industrial ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 1,730,876 ​ $ 350,618 ​ $ 199,489 ​ $ 67,035 ​ $ 71,799 ​ $ 140,461 ​ $ 590,701 ​ $ 3,150,979 Watch ​ ​ 4,872 ​ ​ 32,028 ​ ​ 13,073 ​ ​ 6,500 ​ ​ 3,182 ​ ​ 4,906 ​ ​ 19,972 ​ ​ 84,533 Special Mention ​ ​ 1,009 ​ ​ 2,178 ​ ​ 3,890 ​ ​ 1,150 ​ ​ 724 ​ ​ 1,234 ​ ​ 4,755 ​ ​ 14,940 Substandard ​ ​ 534 ​ ​ 4,269 ​ ​ 1,274 ​ ​ 309 ​ ​ 560 ​ ​ 2,676 ​ ​ 3,386 ​ ​ 13,008 Total Commercial & Industrial ​ $ 1,737,291 ​ $ 389,093 ​ $ 217,726 ​ $ 74,994 ​ $ 76,265 ​ $ 149,277 ​ $ 618,814 ​ $ 3,263,460 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Multifamily Real Estate ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 144,805 ​ $ 85,740 ​ $ 150,724 ​ $ 117,881 ​ $ 67,984 ​ $ 231,113 ​ $ 2,311 ​ $ 800,558 Watch ​ ​ — ​ ​ 5,074 ​ ​ 475 ​ ​ — ​ ​ 617 ​ ​ 560 ​ ​ — ​ ​ 6,726 Special Mention ​ ​ 2,280 ​ ​ — ​ ​ 4,388 ​ ​ — ​ ​ — ​ ​ 760 ​ ​ — ​ ​ 7,428 Substandard ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 33 ​ ​ — ​ ​ 33 Total Multifamily Real Estate ​ $ 147,085 ​ $ 90,814 ​ $ 155,587 ​ $ 117,881 ​ $ 68,601 ​ $ 232,466 ​ $ 2,311 ​ $ 814,745 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Residential 1-4 Family - Commercial ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 104,630 ​ $ 89,332 ​ $ 70,310 ​ $ 79,156 ​ $ 68,915 ​ $ 201,492 ​ $ 2,236 ​ $ 616,071 Watch ​ ​ 666 ​ ​ 6,665 ​ ​ 8,252 ​ ​ 4,141 ​ ​ 4,067 ​ ​ 9,307 ​ ​ 195 ​ ​ 33,293 Special Mention ​ ​ — ​ ​ — ​ ​ 601 ​ ​ 663 ​ ​ 468 ​ ​ 5,923 ​ ​ — ​ ​ 7,655 Substandard ​ ​ 644 ​ ​ 793 ​ ​ 4,913 ​ ​ 1,995 ​ ​ 986 ​ ​ 5,111 ​ ​ 488 ​ ​ 14,930 Total Residential 1-4 Family - Commercial ​ $ 105,940 ​ $ 96,790 ​ $ 84,076 ​ $ 85,955 ​ $ 74,436 ​ $ 221,833 ​ $ 2,919 ​ $ 671,949 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other Commercial ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 223,490 ​ $ 112,045 ​ $ 9,549 ​ $ 30,314 ​ $ 16,494 ​ $ 42,158 ​ $ 44,180 ​ $ 478,230 Watch ​ ​ — ​ ​ — ​ ​ 613 ​ ​ 1,299 ​ ​ 1,189 ​ ​ 3,934 ​ ​ — ​ ​ 7,035 Special Mention ​ ​ 10 ​ ​ — ​ ​ — ​ ​ 7 ​ ​ — ​ ​ 4,591 ​ ​ 102 ​ ​ 4,710 Total Other Commercial ​ $ 223,500 ​ $ 112,045 ​ $ 10,162 ​ $ 31,620 ​ $ 17,683 ​ $ 50,683 ​ $ 44,282 ​ $ 489,975 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total Commercial ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 3,188,757 ​ $ 1,745,845 ​ $ 1,280,638 ​ $ 956,192 ​ $ 733,053 ​ $ 2,089,643 ​ $ 712,011 ​ $ 10,706,139 Watch ​ ​ 37,707 ​ ​ 218,838 ​ ​ 129,909 ​ ​ 87,358 ​ ​ 115,922 ​ ​ 291,384 ​ ​ 39,097 ​ ​ 920,215 Special Mention ​ ​ 4,989 ​ ​ 24,834 ​ ​ 49,668 ​ ​ 24,091 ​ ​ 51,870 ​ ​ 56,829 ​ ​ 6,701 ​ ​ 218,982 Substandard ​ ​ 1,424 ​ ​ 9,920 ​ ​ 42,483 ​ ​ 3,282 ​ ​ 5,163 ​ ​ 39,917 ​ ​ 4,873 ​ ​ 107,062 Total Commercial ​ $ 3,232,877 ​ $ 1,999,437 ​ $ 1,502,698 ​ $ 1,070,923 ​ $ 906,008 ​ $ 2,477,773 ​ $ 762,682 ​ $ 11,952,398 ​ ​ Consumer Loans ​ For Consumer loans, the Company evaluates credit quality based on the delinquency status of the loan. The following table details the amortized cost of the classes of loans within the Consumer segment based on their delinquency status and year of origination as of December 31, 2020 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020 ​ ​ ​ Term Loans Amortized Cost Basis by Origination Year ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020 ​ 2019 ​ 2018 ​ 2017 ​ 2016 ​ Prior ​ Revolving Loans ​ Total Residential 1-4 Family - Consumer ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Current ​ $ 213,763 ​ $ 75,133 ​ $ 64,299 ​ $ 68,320 ​ $ 102,123 ​ $ 269,203 ​ $ 11 ​ $ 792,852 30-59 Days Past Due ​ ​ 678 ​ ​ 181 ​ ​ 2,243 ​ ​ 516 ​ ​ 457 ​ ​ 6,107 ​ ​ — ​ ​ 10,182 60-89 Days Past Due ​ ​ 156 ​ ​ — ​ ​ 57 ​ ​ 679 ​ ​ — ​ ​ 641 ​ ​ — ​ ​ 1,533 90+ Days Past Due ​ ​ 608 ​ ​ 1,696 ​ ​ 23 ​ ​ — ​ ​ 1,246 ​ ​ 2,126 ​ ​ — ​ ​ 5,699 Nonaccrual ​ ​ — ​ ​ — ​ ​ 696 ​ ​ 851 ​ ​ 887 ​ ​ 10,166 ​ ​ — ​ ​ 12,600 Total Residential 1-4 Family - Consumer ​ $ 215,205 ​ $ 77,010 ​ $ 67,318 ​ $ 70,366 ​ $ 104,713 ​ $ 288,243 ​ $ 11 ​ $ 822,866 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Residential 1-4 Family - Revolving ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Current ​ $ 13,217 ​ $ 3,916 ​ $ 1,593 ​ $ 300 ​ $ — ​ $ 636 ​ $ 567,860 ​ $ 587,522 30-59 Days Past Due ​ ​ 70 ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 2,905 ​ ​ 2,975 60-89 Days Past Due ​ ​ 53 ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 991 ​ ​ 1,044 90+ Days Past Due ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 826 ​ ​ 826 Nonaccrual ​ ​ — ​ ​ — ​ ​ 21 ​ ​ — ​ ​ — ​ ​ 227 ​ ​ 4,381 ​ ​ 4,629 Total Residential 1-4 Family - Revolving ​ $ 13,340 ​ $ 3,916 ​ $ 1,614 ​ $ 300 ​ $ — ​ $ 863 ​ $ 576,963 ​ $ 596,996 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Consumer ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Current ​ $ 26,498 ​ $ 68,208 ​ $ 67,041 ​ $ 22,464 ​ $ 9,997 ​ $ 15,893 ​ $ 35,450 ​ $ 245,551 30-59 Days Past Due ​ ​ 35 ​ ​ 252 ​ ​ 504 ​ ​ 98 ​ ​ 15 ​ ​ 143 ​ ​ 119 ​ ​ 1,166 60-89 Days Past Due ​ ​ 28 ​ ​ 176 ​ ​ 317 ​ ​ 23 ​ ​ — ​ ​ 3 ​ ​ 3 ​ ​ 550 90+ Days Past Due ​ ​ 5 ​ ​ 84 ​ ​ 242 ​ ​ 4 ​ ​ — ​ ​ 56 ​ ​ 3 ​ ​ 394 Nonaccrual ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 69 ​ ​ — ​ ​ 69 Total Consumer ​ $ 26,566 ​ $ 68,720 ​ $ 68,104 ​ $ 22,589 ​ $ 10,012 ​ $ 16,164 ​ $ 35,575 ​ $ 247,730 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Auto ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Current ​ $ 171,051 ​ $ 115,319 ​ $ 55,886 ​ $ 32,555 ​ $ 17,081 ​ $ 6,314 ​ $ — ​ $ 398,206 30-59 Days Past Due ​ ​ 239 ​ ​ 467 ​ ​ 543 ​ ​ 478 ​ ​ 197 ​ ​ 152 ​ ​ — ​ ​ 2,076 60-89 Days Past Due ​ ​ 124 ​ ​ 150 ​ ​ — ​ ​ 59 ​ ​ 26 ​ ​ 17 ​ ​ — ​ ​ 376 90+ Days Past Due ​ ​ 6 ​ ​ 23 ​ ​ 53 ​ ​ 58 ​ ​ 15 ​ ​ 11 ​ ​ — ​ ​ 166 Nonaccrual ​ ​ 30 ​ ​ 93 ​ ​ 126 ​ ​ 101 ​ ​ 88 ​ ​ 62 ​ ​ — ​ ​ 500 Total Auto ​ $ 171,450 ​ $ 116,052 ​ $ 56,608 ​ $ 33,251 ​ $ 17,407 ​ $ 6,556 ​ $ — ​ $ 401,324 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total Consumer ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Current ​ $ 424,529 ​ $ 262,576 ​ $ 188,819 ​ $ 123,639 ​ $ 129,201 ​ $ 292,046 ​ $ 603,321 ​ $ 2,024,131 30-59 Days Past Due ​ ​ 1,022 ​ ​ 900 ​ ​ 3,290 ​ ​ 1,092 ​ ​ 669 ​ ​ 6,402 ​ ​ 3,024 ​ ​ 16,399 60-89 Days Past Due ​ ​ 361 ​ ​ 326 ​ ​ 374 ​ ​ 761 ​ ​ 26 ​ ​ 661 ​ ​ 994 ​ ​ 3,503 90+ Days Past Due ​ ​ 619 ​ ​ 1,803 ​ ​ 318 ​ ​ 62 ​ ​ 1,261 ​ ​ 2,193 ​ ​ 829 ​ ​ 7,085 Nonaccrual ​ ​ 30 ​ ​ 93 ​ ​ 843 ​ ​ 952 ​ ​ 975 ​ ​ 10,524 ​ ​ 4,381 ​ ​ 17,798 Total Consumer ​ $ 426,561 ​ $ 265,698 ​ $ 193,644 ​ $ 126,506 ​ $ 132,132 ​ $ 311,826 ​ $ 612,549 ​ $ 2,068,916 ​ The Company did not have any material revolving loans convert to term during the year ended December 31, 2020. ​ Acquired Loans ​ The Company has purchased loans that, at the time of acquisition, exhibited more than insignificant credit deterioration since origination. The Company has elected to treat all loans that were previously identified as PCI as PCD. ​ Prior to the adoption of ASC 326 ​ The following table shows the aging of the Company’s loan portfolio, by class, at December 31, 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Greater than ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 30-59 Days ​ 60-89 Days ​ 90 Days and ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Past Due ​ Past Due ​ still Accruing ​ PCI ​ Nonaccrual ​ Current ​ Total Loans Construction and Land Development ​ $ 4,563 ​ $ 482 ​ $ 189 ​ $ 10,944 ​ $ 3,703 ​ $ 1,231,043 ​ $ 1,250,924 Commercial Real Estate - Owner Occupied ​ 3,482 ​ 2,184 ​ 1,062 ​ 27,438 ​ 6,003 ​ 2,001,074 ​ 2,041,243 Commercial Real Estate - Non-Owner Occupied ​ 457 ​ — ​ 1,451 ​ 14,565 ​ 381 ​ 3,269,244 ​ 3,286,098 Multifamily Real Estate ​ 223 ​ — ​ 474 ​ 94 ​ — ​ 632,952 ​ 633,743 Commercial & Industrial ​ 8,698 ​ 1,598 ​ 449 ​ 1,579 ​ 1,735 ​ 2,099,974 ​ 2,114,033 Residential 1-4 Family - Commercial ​ 1,479 ​ 2,207 ​ 674 ​ 12,205 ​ 4,301 ​ 703,471 ​ 724,337 Residential 1-4 Family - Consumer ​ 16,244 ​ 3,072 ​ 4,515 ​ 14,713 ​ 9,292 ​ 842,667 ​ 890,503 Residential 1-4 Family - Revolving ​ 10,190 ​ 1,784 ​ 3,357 ​ 4,127 ​ 2,080 ​ 637,966 ​ 659,504 Auto ​ 2,525 ​ 236 ​ 272 ​ 4 ​ 563 ​ 346,819 ​ 350,419 Consumer ​ 2,128 ​ 1,233 ​ 953 ​ 668 ​ 77 ​ 367,794 ​ 372,853 Other Commercial ​ ​ 464 ​ ​ — ​ ​ — ​ ​ 344 ​ ​ 97 ​ ​ 286,374 ​ ​ 287,279 Total loans held for investment ​ $ 50,453 ​ $ 12,796 ​ $ 13,396 ​ $ 86,681 ​ $ 28,232 ​ $ 12,419,378 ​ $ 12,610,936 ​ ​ Nonaccrual loans totaled $28.2 million and $27.0 million at December 31, 2019 and 2018, respectively. Had these loans performed in accordance with their original terms, interest income of approximately $1.8 million and $2.3 million would have been recorded in 2019 and 2018, respectively. All nonaccrual loans were included in the impaired loan disclosure in 2019 and 2018. ​ The following table shows the PCI loan portfolios, by class and their delinquency status, at December 31, 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 30-89 Days Greater than ​ ​ ​ ​ ​ ​ Past Due ​ 90 Days ​ Current ​ Total Construction and Land Development ​ $ 136 ​ $ 343 ​ $ 10,465 ​ $ 10,944 Commercial Real Estate - Owner Occupied ​ 480 ​ 6,884 ​ 20,074 ​ 27,438 Commercial Real Estate - Non-Owner Occupied ​ 848 ​ 987 ​ 12,730 ​ 14,565 Multifamily Real Estate ​ — ​ — ​ 94 ​ 94 Commercial & Industrial ​ — ​ 989 ​ 590 ​ 1,579 Residential 1-4 Family - Commercial ​ 543 ​ 1,995 ​ 9,667 ​ 12,205 Residential 1-4 Family - Consumer ​ 927 ​ 1,781 ​ 12,005 ​ 14,713 Residential 1-4 Family - Revolving ​ 287 ​ 205 ​ 3,635 ​ 4,127 Auto ​ ​ — ​ ​ — ​ ​ 4 ​ ​ 4 Consumer ​ ​ — ​ ​ 9 ​ ​ 659 ​ ​ 668 Other Commercial ​ — ​ — ​ 344 ​ 344 Total ​ $ 3,221 ​ $ 13,193 ​ $ 70,267 ​ $ 86,681 ​ ​ As of December 31, 2019, the Company measured the amount of impairment by evaluating loans either in their collective homogeneous pools or individually. The following table shows the Company’s impaired loans, excluding PCI loans, by class at December 31, 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019 ​ ​ ​ Unpaid ​ ​ ​ ​ Recorded ​ Principal ​ Related ​ ​ Investment ​ Balance ​ Allowance Loans without a specific allowance ​ ​ ​ Construction and Land Development ​ $ 5,877 ​ $ 7,174 ​ $ — Commercial Real Estate - Owner Occupied ​ 8,801 ​ 9,296 ​ — Commercial Real Estate - Non-Owner Occupied ​ 3,510 ​ 4,059 ​ — Commercial & Industrial ​ 3,668 ​ 3,933 ​ — Residential 1-4 Family - Commercial ​ 4,047 ​ 4,310 ​ — Residential 1-4 Family - Consumer ​ 8,420 ​ 9,018 ​ — Residential 1-4 Family - Revolving ​ 862 ​ 865 ​ — Total impaired loans without a specific allowance ​ $ 35,185 ​ $ 38,655 ​ $ — Loans with a specific allowance ​ ​ ​ Construction and Land Development ​ $ 984 ​ $ 1,032 ​ $ 49 Commercial Real Estate - Owner Occupied ​ 2,820 ​ 3,093 ​ 146 Commercial Real Estate - Non-Owner Occupied ​ 335 ​ 383 ​ 2 Commercial & Industrial ​ 2,568 ​ 2,590 ​ 619 Residential 1-4 Family - Commercial ​ 1,726 ​ 1,819 ​ 162 Residential 1-4 Family - Consumer ​ 12,026 ​ 12,670 ​ 1,242 Residential 1-4 Family - Revolving ​ 2,186 ​ 2,369 ​ 510 Auto ​ 563 ​ 879 ​ 221 Consumer ​ 168 ​ 336 ​ 46 Other Commercial ​ ​ 562 ​ ​ 567 ​ ​ 30 Total impaired loans with a specific allowance ​ $ 23,938 ​ $ 25,738 ​ $ 3,027 Total impaired loans ​ $ 59,123 ​ $ 64,393 ​ $ 3,027 ​ ​ The following table shows the average recorded investment and interest income recognized for the Company’s impaired loans, excluding PCI loans, by class for the years ended December 31, 2019 and 2018 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019 ​ December 31, 2018 ​ ​ ​ Interest ​ ​ Interest ​ ​ Average ​ Income ​ Average ​ Income ​ ​ Investment ​ Recognized ​ Investment ​ Recognized Construction and Land Development ​ $ 6,764 ​ $ 110 ​ $ 11,648 ​ $ 234 Commercial Real Estate - Owner Occupied ​ 12,258 ​ 323 ​ 13,383 ​ 499 Commercial Real Estate - Non-Owner Occupied ​ 4,775 ​ 147 ​ 7,157 ​ 246 Commercial & Industrial ​ 6,438 ​ 293 ​ 4,672 ​ 232 Residential 1-4 Family - Commercial ​ 6,145 ​ 120 ​ 5,667 ​ 180 Residential 1-4 Family - Consumer ​ 20,963 ​ 308 ​ 16,977 ​ 236 Residential 1-4 Family - Revolving ​ 3,256 ​ 82 ​ 2,000 ​ 23 Auto ​ 788 ​ 15 ​ 824 ​ 20 Consumer ​ 187 ​ 5 ​ 263 ​ 5 Other Commercial ​ ​ 584 ​ ​ 22 ​ ​ 486 ​ ​ 27 Total impaired loans ​ $ 62,158 ​ $ 1,425 ​ $ 63,077 ​ $ 1,702 ​ ​ At December 31, 2019, the Company considered TDRs to be impaired loans. A modification of a loan’s terms constitutes a TDR if the creditor grants a concession that it would not otherwise consider to the borrower for economic or legal reasons related to the borrower’s financial difficulties. All loans that are considered to be TDRs are evaluated for impairment in accordance with the Company’s allowance for loan loss methodology and are included in the preceding impaired loan tables. The following table provides a summary, by class, of TDRs that continue to accrue interest under the terms of the applicable restructuring agreement, which are considered to be performing, and TDRs that have been placed in nonaccrual status, which are considered to be nonperforming, as of December 31, 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019 ​ No. of Recorded Outstanding ​ ​ Loans ​ Investment ​ Commitment Performing ​ ​ Construction and Land Development 4 ​ $ 1,114 ​ $ — Commercial Real Estate - Owner Occupied 6 ​ 2,228 ​ 26 Commercial Real Estate - Non-Owner Occupied 1 ​ 1,089 ​ — Commercial & Industrial 4 ​ 1,020 ​ — Residential 1-4 Family - Commercial 5 ​ 290 ​ — Residential 1-4 Family - Consumer 69 ​ 9,396 ​ — Residential 1-4 Family - Revolving 2 ​ 56 ​ — Consumer 4 ​ 29 ​ — Other Commercial ​ 1 ​ ​ 464 ​ ​ — Total performing 96 ​ $ 15,686 ​ $ 26 Nonperforming ​ ​ Commercial Real Estate - Owner Occupied 2 ​ $ 176 ​ $ — Commercial & Industrial 1 ​ 55 ​ — Residential 1-4 Family - Consumer 19 ​ 3,522 ​ — Residential 1-4 Family - Revolving 2 ​ 57 ​ — Total nonperforming 24 ​ $ 3,810 ​ $ — Total performing and nonperforming 120 ​ $ 19,496 ​ $ 26 ​ The Company considers a default of a TDR to occur when the borrower is 90 days past due following the restructuring or a foreclosure and repossession of the applicable collateral occurs. During the year ended December 31, 2019, the Company did not have any material loans that went into default that had been restructured in the twelve-month period prior to the time of default. The following table shows, by class and modification type, TDRs that occurred during the year ended December 31, 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ All Restructurings ​ ​ 2019 ​ ​ Recorded ​ ​ No. of ​ Investment at ​ ​ Loans ​ Period End Modified to interest only, at a market rate ​ Total interest only at market rate of interest — ​ $ — ​ ​ ​ ​ ​ ​ Term modification, at a market rate ​ Commercial & Industrial ​ 1 ​ $ 376 Residential 1-4 Family - Commercial 1 ​ ​ 72 Residential 1-4 Family - Consumer 7 ​ 1,688 Consumer 3 ​ 24 Total loan term extended at a market rate 12 ​ $ 2,160 ​ ​ ​ ​ ​ ​ Term modification, below market rate ​ Construction and Land Development ​ 3 ​ $ 193 Residential 1-4 Family - Consumer 22 ​ ​ 2,658 Consumer ​ 1 ​ ​ 5 Total loan term extended at a below market rate 26 ​ $ 2,856 ​ ​ ​ ​ ​ ​ Total 38 ​ $ 5,016 ​ ​ ​ ​ ​ ​ ​ Allowance for Loan and Lease Losses The following tables show the ALLL activity by class for the y

PREMISES AND EQUIPMENT

PREMISES AND EQUIPMENT	12 Months Ended
	Dec. 31, 2020
Property, Plant and Equipment [Abstract]
PREMISES AND EQUIPMENT	​ 5. PREMISES AND EQUIPMENT Amounts presented as of and for the years ended December 31, 2019 and 2018 exclude discontinued operations. Refer to Note 19 "Segment Reporting & Discontinued Operations" in Item 8 "Financial Statements and Supplementary Data" of this Form 10-K for further discussion regarding discontinued operations. The Company’s premises and equipment as of December 31, 2020 and 2019 are as follows (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020 2019 Land ​ $ 39,845 ​ $ 44,578 Land improvements and buildings ​ 129,497 ​ 123,189 Leasehold improvements ​ 24,037 ​ 20,597 Furniture and equipment ​ 80,191 ​ 71,469 Construction in progress ​ 2,497 ​ 3,549 Total ​ 276,067 ​ 263,382 Accumulated depreciation and amortization ​ (112,238) ​ (102,309) Bank premises and equipment, net ​ $ 163,829 ​ $ 161,073 ​ Depreciation expense for the years ended December 31, 2020, 2019, and 2018 was $15.2 million, $15.0 million, and $13.6 million, respectively. Refer to Note 7 “Leases” in Item 8 “Financial Statements and Supplementary Data” of this Form 10-K for further discussion regarding the Company’s leasing arrangements. ​

GOODWILL AND INTANGIBLE ASSETS

GOODWILL AND INTANGIBLE ASSETS	12 Months Ended
	Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
INTANGIBLE ASSETS	6. GOODWILL AND INTANGIBLE ASSETS The Company’s intangible assets consist of core deposits, goodwill, and other intangibles arising from acquisitions. The Company has determined that core deposit intangibles have finite lives and amortizes them over their estimated useful lives. Core deposit intangibles are being amortized over the period of expected benefit, which ranges from 4 to 10 years, using an accelerated method. Other amortizable intangible assets are being amortized over the period of expected benefit, which ranges from 4 to 10 years, using various methods. The COVID-19 pandemic has disrupted and adversely impacted the economy and created significant volatility in the financial markets. The volatility in the financial markets adversely affected the Company’s expected future cash flows, due to the lower interest rate environment and other factors, and resulted in a decline in the market price of the Company’s common stock, along with others in the financial services industry. The forecasted impact from COVID-19 was included in the Company’s annual goodwill impairment test in the second quarter of 2020, and while the fair value of the reporting unit declined from the prior test, the Company determined that there was Due to the uncertainties driven by COVID-19, the Company analyzed its intangible assets on a quarterly basis throughout 2020, and concluded no impairment existed as of the balance sheet date. Information concerning intangible assets with a finite life is presented in the following table (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Gross ​ ​ Net ​ ​ Carrying ​ Accumulated ​ Carrying ​ ​ Value ​ Amortization ​ Value December 31, 2020 ​ ​ ​ Core deposit intangibles ​ $ 135,300 ​ $ 88,109 ​ $ 47,191 Other amortizable intangibles ​ 15,240 ​ 5,246 ​ 9,994 December 31, 2019 ​ ​ ​ Core deposit intangibles ​ $ 135,300 ​ $ 73,336 ​ $ 61,964 Other amortizable intangibles ​ 15,349 ​ 3,644 ​ 11,705 ​ Amortization expense of intangibles for the years ended December 31, 2020, 2019, and 2018 totaled $16.6 million, $18.5 million, and $12.8 million, respectively. As of December 31, 2020, the estimated remaining amortization expense of intangibles for the years ended is as follows (dollars in thousands): ​ ​ ​ ​ ​ 2021 $ 13,874 2022 ​ ​ 11,490 2023 ​ ​ 9,688 2024 ​ ​ 7,818 2025 ​ ​ 6,221 Thereafter ​ ​ 8,094 Total estimated amortization expense ​ $ 57,185 ​

LEASES

LEASES	12 Months Ended
	Dec. 31, 2020
Leases [Abstract]
LEASES	​ 7. LEASES On January 1, 2019, the Company adopted ASC 842. The Company enters into both lessor and lessee arrangements and determines if an arrangement is a lease at inception. As both a lessee and lessor, the Company elected the practical expedient permitted under the transition guidance within the standard to account for lease and non-lease components as a single lease component for all asset classes. Lessor Arrangements The Company’s lessor arrangements consist of sales-type and direct financing leases for equipment. Lease payment terms are fixed and are typically payable in monthly installments with terms ranging from 31 months to 125 months. The lease arrangements may contain renewal options and purchase options that allow the lessee to purchase the leased equipment at the end of the lease term. The leases generally do not contain non-lease components. The Company has no lease transactions with related parties. At lease inception the Company estimates the expected residual value of the leased property at the end of the lease term by considering both internal and third-party appraisals. In certain cases, the Company obtains lessee-provided residual value guarantees and third-party RVI to reduce its residual asset risk. At December 31, 2020 the carrying value of residual assets covered by residual value guarantees and RVI was $14.7 million. The net investment in sales-type and direct financing leases consists of the carrying amount of the lease receivables plus unguaranteed residual assets, net of unearned income and any deferred selling profit on direct financing leases. The lease receivables include the lessor’s right to receive lease payments and the guaranteed residual asset value the lessor expects to derive from the underlying assets at the end of the lease term. At December 31, 2020, the total net investment in sales-type and direct financing leases was $146.0 million, comprised of $141.2 million in lease receivables and $4.8 million in unguaranteed residuals. There were no significant changes in the balance of the Company’s unguaranteed residual assets for the period ending December 31, 2020. The Company’s net investment in sales-type and direct financing leases are included in Loans Held for Investment (net of deferred fees and costs) on the Company’s Consolidated Balance Sheets. For the year ended December 31, 2020, total lease income was Lessee Arrangements The Company’s lessee arrangements consist of operating and finance leases; however, the majority of the leases have been classified as non-cancellable operating leases and are primarily for real estate leases with remaining lease terms of up to 25 years . The Company’s real estate lease agreements do not contain residual value guarantees and most agreements do not contain restrictive covenants. The Company does not have any material arrangements where the Company is in a sublease contract. Lessee arrangements with an initial term of twelve months or less are not recorded on the Consolidated Balance Sheets. The ROU Assets and lease liabilities associated with operating and finance leases greater than twelve months are recorded in the Company’s Consolidated Balance Sheets; ROU Assets within Other Assets and lease liabilities within Other Liabilities. ROU Assets represent the Company’s right to use an underlying asset over the course of the lease term and lease liabilities represent the Company’s obligation to make lease payments arising from the lease. The initial measurement of lease liabilities and ROU Assets are the same for operating and finance leases. Lease liabilities are recognized at the commencement date based on the present value of the remaining lease payments, discounted using the incremental borrowing rate. As most of the Company’s leases do not provide an implicit rate, the Company uses an incremental borrowing rate based on the information available at commencement date in determining the present value of lease payments. ROU Assets are recognized at commencement date based on the initial measurement of the lease liability, any lease payments made excluding lease incentives, and any initial direct costs incurred. Most of the Company’s operating leases include one or more options to renew. The Company is reasonably certain to exercise those options, they are included in the measurement of the operating ROU Assets and lease liabilities. Lease expense for operating lease payments is recognized on a straight-line basis over the lease term and recorded in Occupancy Expense within noninterest expense on the Company’s Consolidated Statements of Income. Finance lease expenses consist of straight-line amortization expense of the ROU Assets recognized over the lease term and interest expense on the lease liability. Total finance lease expenses for the amortization of the ROU Assets are recorded in Occupancy Expense within noninterest expense on the Company’s Consolidated Statements of Income and interest expense on the finance lease liability is recorded in Interest Expense on Long-Term Borrowings within total interest expense on the Company’s Consolidated Statements of Income. As of December 31, 2020, the Company had no sales leaseback transactions or leases that have not yet commenced that create significant rights and obligations. The tables below provide information about the Company’s lessee lease portfolio and other supplemental lease information (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020 ​ ​ ​ December 31, 2019 ​ ​ Operating ​ ​ Finance ​ ​ ​ Operating (2) Right-of-use-assets ​ $ 48,051 ​ ​ $ 7,425 ​ ​ $ 54,941 ​ Lease liabilities ​ ​ 58,901 ​ ​ ​ 10,621 ​ ​ ​ 66,052 ​ Lease Term and Discount Rate of Operating leases: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted-average remaining lease term (years) ​ 7.27 ​ ​ ​ 8.08 ​ ​ ​ 7.36 ​ Weighted-average discount rate (1) ​ 2.66 % ​ ​ 1.17 % ​ ​ 2.69 % (1) An incremental borrowing rate is used based on information available at commencement date of lease or at remeasurement date. (2) At December 31, 2019, all leases were classified as operating leases. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year ended December 31, ​ 2020 ​ 2019 Cash paid for amounts included in measurement of lease liabilities: ​ ​ ​ ​ ​ ​ Operating Cash Flows from Finance Leases ​ $ 72 ​ $ — Operating Cash Flows from Operating Leases ​ 13,491 ​ ​ 13,697 Right-of-use assets obtained in exchange for lease obligations: ​ ​ ​ ​ ​ Operating leases ​ 4,577 ​ ​ 8,065 Finance leases ​ ​ 10,549 ​ ​ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year ended December 31, ​ ​ ​ 2020 ​ ​ 2019 Net Operating Lease Cost ​ $ 11,006 ​ $ 11,526 Finance Lease Cost: ​ ​ ​ ​ ​ ​ Amortization of right-of-use assets ​ ​ 536 ​ ​ — Interest on lease liabilities ​ ​ 72 ​ ​ — Total Lease Cost ​ $ 11,614 ​ $ 11,526 ​ The maturities of lessor and lessee arrangements outstanding are presented in the table below (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020 ​ ​ Lessor ​ Lessee ​ ​ ​ Sales-type and Direct Financing ​ Operating ​ Finance 2021 ​ $ 30,206 ​ $ 11,912 ​ $ 1,261 2022 ​ 30,969 ​ ​ 10,764 ​ ​ 1,292 2023 ​ 29,306 ​ ​ 9,903 ​ ​ 1,325 2024 ​ 27,355 ​ ​ 8,903 ​ ​ 1,358 2025 ​ ​ 18,540 ​ ​ 6,643 ​ ​ 1,392 Thereafter ​ 14,329 ​ ​ 17,196 ​ ​ 4,515 Total undiscounted cash flows ​ 150,705 ​ ​ 65,321 ​ ​ 11,143 Less: Adjustments (1) ​ 9,525 ​ ​ 6,420 ​ ​ 522 Total (2) ​ $ 141,180 ​ $ 58,901 ​ $ 10,621 (1) Lessor – unearned income and unearned guaranteed residual value; Lessee – imputed interest. (2) Represents lease receivables for lessor arrangements and lease liabilities for lessee arrangements ​

DEPOSITS

DEPOSITS	12 Months Ended
	Dec. 31, 2020
Deposits, Interest-bearing and Noninterest-bearing, Alternative [Abstract]
DEPOSITS	8. DEPOSITS The major types of interest-bearing deposits are as follows for the years ended December 31, (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020 2019 Interest-bearing deposits: ​ ​ NOW accounts ​ $ 3,621,181 ​ $ 2,905,714 Money market accounts ​ 4,248,335 ​ 3,951,856 Savings accounts ​ 904,095 ​ 727,847 Time deposits of $250,000 and over ​ 654,224 ​ 684,797 Other time deposits ​ 1,926,227 ​ 2,064,628 Total interest-bearing deposits ​ $ 11,354,062 ​ $ 10,334,842 ​ As of December 31, 2020, the scheduled maturities of time deposits are as follows for the years ended December 31, (dollars in thousands): ​ ​ ​ ​ ​ 2021 $ 1,846,844 2022 ​ 369,810 2023 ​ 160,021 2024 ​ 171,968 2025 ​ 31,250 Thereafter ​ 558 Total scheduled maturities of time deposits ​ $ 2,580,451 ​ The amount of time deposits held in CDARS accounts was $64.2 million and $73.9 million as of December 31, 2020 and 2019, respectively. The Company classifies deposit overdrafts as loans held for investment within the "Other Commercial" category. As of December 31, 2020 and 2019, these deposits totaled $2.6 million. ​

BORROWINGS

BORROWINGS	12 Months Ended
	Dec. 31, 2020
Debt Disclosure [Abstract]
BORROWINGS	9. BORROWINGS Short-term Borrowings The Company classifies all borrowings that will mature within a year from the date on which the Company enters into them as short-term borrowings. Total short-term borrowings consist primarily of advances from the FHLB, federal funds purchased (which are secured overnight borrowings from other financial institutions), and other lines of credit. Also included in total short-term borrowings are securities sold under agreements to repurchase, which are secured transactions with customers and generally mature the day following the date sold. ​ Total short-term borrowings consist of the following as of December 31, 2020 and 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020 ​ 2019 Securities sold under agreements to repurchase ​ $ 100,888 ​ $ 66,053 ​ Federal Funds Purchased ​ ​ 150,000 ​ ​ — ​ FHLB Advances ​ 100,000 ​ 370,200 ​ Total short-term borrowings ​ $ 350,888 ​ $ 436,253 ​ ​ ​ ​ ​ ​ ​ ​ ​ Average outstanding balance during the period ​ $ 213,932 ​ $ 673,116 ​ Average interest rate (during the period) ​ 0.79 % 2.30 % Average interest rate at end of period ​ 0.13 % 1.52 % ​ The Bank maintains federal funds lines with several correspondent banks; the remaining available balance was $847.0 million and $682.0 million at December 31, 2020 and 2019 respectively. The Company maintains an alternate line of credit at a correspondent bank; the available balance was $25.0 million at both December 31, 2020 and 2019. The Company has certain restrictive covenants related to certain asset quality, capital, and profitability metrics associated with these lines and is considered to be in compliance with these covenants as of December 31, 2020 and 2019. Additionally, the Company had a collateral dependent line of credit with the FHLB of up to $6.0 billion and $5.2 billion at December 31, 2020 and 2019, respectively. Long-term Borrowings In connection with several previous bank acquisitions, the Company issued $58.5 million and acquired $87.0 million of trust preferred capital notes. Most recently, in connection with the acquisition of Access on February 1, 2019, the Company acquired additional trust preferred capital notes totaling $5.0 million. The remaining fair value discount on all acquired trust preferred capital notes was $14.1 million and $14.9 million at December 31, 2020 and 2019, respectively. On August 23, 2012, the Company modified its fixed rate FHLB advances to floating rate advances, which resulted in reducing the Company’s FHLB borrowing costs. In connection with this modification, the Company incurred a prepayment penalty of $19.6 million on the original advances which was deferred and to be amortized over the term of the modified advances using the effective rate method. On August 29, 2019, the Company repaid the floating rate FHLB advances. In connection with this repayment, the remaining unamortized prepayment penalty of $7.4 million was immediately recognized as a component of noninterest expense during the third quarter of 2019. In response to the current rate environment, the Company prepaid $550.0 million of long-term FHLB advances throughout 2020, which resulted in prepayment penalties of $31.2 million. In addition, on November 30, 2020, the Company redeemed $8.5 million in subordinated debt that was originally acquired as part of the Xenith acquisition. ​ ​ Total long-term borrowings consist of the following as of December 31, 2020 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Spread to ​ ​ ​ ​ ​ ​ ​ ​ ​ Principal ​ 3-Month LIBOR ​ Rate (1) ​ Maturity ​ Investment (2) Trust Preferred Capital Securities ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Trust Preferred Capital Note - Statutory Trust I ​ $ 22,500 2.75 % 2.99 % 6/17/2034 ​ $ 696 Trust Preferred Capital Note - Statutory Trust II ​ 36,000 1.40 % 1.64 % 6/15/2036 ​ 1,114 VFG Limited Liability Trust I Indenture ​ 20,000 2.73 % 2.97 % 3/18/2034 ​ 619 FNB Statutory Trust II Indenture ​ 12,000 3.10 % 3.34 % 6/26/2033 ​ 372 Gateway Capital Statutory Trust I ​ 8,000 3.10 % 3.34 % 9/17/2033 ​ 248 Gateway Capital Statutory Trust II ​ 7,000 2.65 % 2.89 % 6/17/2034 ​ 217 Gateway Capital Statutory Trust III ​ 15,000 1.50 % 1.74 % 5/30/2036 ​ 464 Gateway Capital Statutory Trust IV ​ 25,000 1.55 % 1.79 % 7/30/2037 ​ 774 MFC Capital Trust II ​ 5,000 2.85 % 3.09 % 1/23/2034 ​ 155 Total Trust Preferred Capital Securities ​ $ 150,500 ​ $ 4,659 FHLB Advances ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fixed Rate Convertible ​ ​ 200,000 ​ - % 1.78% % 10/26/2028 ​ ​ ​ Total FHLB Advances ​ $ 200,000 ​ ​ ​ ​ ​ ​ ​ ​ ​ Subordinated Debt (3)(4) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2026 Subordinated Debt (5) ​ ​ 150,000 ​ - % 5.00 % 12/15/2026 ​ ​ ​ Total Subordinated Debt ​ $ 150,000 ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Premium (Discount) (6) ​ ​ (15,330) ​ ​ ​ ​ ​ ​ ​ ​ ​ Investment in Trust Preferred Capital Securities ​ ​ 4,659 ​ ​ ​ ​ ​ ​ ​ ​ ​ Total Long-term Borrowings ​ $ 489,829 ​ ​ ​ ​ ​ ​ ​ ​ ​ (1) Rate as of December 31, 2020. Calculated using non-rounded numbers. (2) The total of the trust preferred capital securities and investments in the respective trusts represents the principal asset of the Company’s junior subordinated debt securities with like maturities and like interest rates to the capital securities. The Company’s investment in the trusts is reported in "Other Assets" on the Company’s Consolidated Balance Sheets. (3) The remaining issuance discount as of December 31, 2020 is $1.2 million. (4) Subordinated notes qualify as Tier 2 capital for the Company for regulatory purposes. (5) Fixed-to-floating rate notes. On December 15, 2021, the interest rate will change to a floating rate of LIBOR plus 3.175% through its maturity date. (6) Includes discount on issued subordinated notes. ​ ​ Total long-term borrowings consist of the following as of December 31, 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Spread to ​ ​ ​ ​ ​ ​ ​ ​ ​ Principal ​ 3-Month LIBOR ​ Rate (1) ​ Maturity ​ Investment (2) Trust Preferred Capital Securities ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Trust Preferred Capital Note - Statutory Trust I ​ $ 22,500 2.75 % 4.66 % 6/17/2034 ​ $ 696 Trust Preferred Capital Note - Statutory Trust II ​ 36,000 1.40 % 3.31 % 6/15/2036 ​ 1,114 VFG Limited Liability Trust I Indenture ​ 20,000 2.73 % 4.64 % 3/18/2034 ​ 619 FNB Statutory Trust II Indenture ​ 12,000 3.10 % 5.01 % 6/26/2033 ​ 372 Gateway Capital Statutory Trust I ​ 8,000 3.10 % 5.01 % 9/17/2033 ​ 248 Gateway Capital Statutory Trust II ​ 7,000 2.65 % 4.56 % 6/17/2034 ​ 217 Gateway Capital Statutory Trust III ​ 15,000 1.50 % 3.41 % 5/30/2036 ​ 464 Gateway Capital Statutory Trust IV ​ 25,000 1.55 % 3.46 % 7/30/2037 ​ 774 MFC Capital Trust II ​ 5,000 2.85 % 4.76 % 1/23/2034 ​ 155 Total Trust Preferred Capital Securities ​ $ 150,500 ​ $ 4,659 FHLB Advances (3) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Convertible Flipper ​ $ 50,000 ​ (0.75) % 1.16 % 8/17/2029 ​ ​ ​ Convertible Flipper ​ ​ 200,000 ​ (0.50) % 1.41 % 5/15/2024 ​ ​ ​ Convertible Flipper ​ ​ 150,000 ​ (0.75) % 1.16 % 5/22/2029 ​ ​ ​ Convertible Flipper ​ ​ 50,000 ​ (0.75) % 1.16 % 5/30/2029 ​ ​ ​ Convertible Flipper ​ ​ 100,000 ​ (0.75) % 1.16 % 6/21/2029 ​ ​ ​ Fixed Rate Convertible ​ ​ 200,000 ​ - % 1.78 % 10/26/2028 ​ ​ ​ Fixed Rate Hybrid ​ ​ 20,000 ​ - % 1.58 % 5/18/2020 ​ ​ ​ Fixed Rate Credit ​ ​ 10,000 ​ - % 1.54 % 10/2/2020 ​ ​ ​ Total FHLB Advances ​ $ 780,000 ​ ​ ​ ​ ​ ​ ​ ​ ​ Subordinated Debt (4)(5) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2025 Subordinated Debt ​ $ 8,500 ​ - % 6.75 % 6/30/2025 ​ ​ ​ 2026 Subordinated Debt (6) ​ ​ 150,000 ​ - % 5.00 % 12/15/2026 ​ ​ ​ Total Subordinated Debt ​ $ 158,500 ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Premium (Discount) (7) ​ ​ (16,164) ​ ​ ​ ​ ​ ​ ​ ​ ​ Investment in Trust Preferred Capital Securities ​ ​ 4,659 ​ ​ ​ ​ ​ ​ ​ ​ ​ Total Long-term Borrowings ​ $ 1,077,495 ​ ​ ​ ​ ​ ​ ​ ​ ​ (1) Rate as of December 31, 2019. Calculated using non-rounded numbers. (2) The total of the trust preferred capital securities and investments in the respective trusts represents the principal asset of the Company’s junior subordinated debt securities with like maturities and like interest rates to the capital securities. The Company’s investment in the trusts is reported in "Other Assets" on the Company’s Consolidated Balance Sheets. (3) Convertible Flippers have interest rate floors of 0% . (4) The remaining issuance discount as of December 31, 2019 is $1.4 million. (5) Subordinated notes qualify as Tier 2 capital for the Company for regulatory purposes. (6) Fixed-to-floating rate notes. On December 15, 2021, the interest rate will change to a floating rate of LIBOR plus 3.175% through its maturity date. (7) Includes discount on issued subordinated notes. ​ ​ As of December 31, 2020, the contractual maturities of long-term debt are as follows for the years ending (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Trust ​ ​ ​ ​ ​ Preferred ​ ​ Fair Value Total ​ Capital Subordinated FHLB Premium Long-term ​ Notes Debt Advances (Discount) (1) Borrowings 2021 ​ $ — ​ $ — ​ $ — ​ $ (1,008) ​ $ (1,008) 2022 ​ — ​ — ​ — ​ (1,030) ​ (1,030) 2023 ​ — ​ — ​ — ​ (1,053) ​ (1,053) 2024 ​ — ​ — ​ — ​ (1,078) ​ (1,078) 2025 ​ — ​ — ​ — ​ (1,102) ​ (1,102) Thereafter ​ 155,159 ​ 150,000 ​ 200,000 ​ (10,059) ​ 495,100 Total long-term borrowings ​ $ 155,159 ​ $ 150,000 ​ $ 200,000 ​ $ (15,330) ​ $ 489,829 ​ (1) Includes discount on issued subordinated notes. ​

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	12 Months Ended
	Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENCIES	10. COMMITMENTS AND CONTINGENCIES Litigation Matters In the ordinary course of its operations, the Company and its subsidiaries are parties to various legal proceedings. Based on the information presently available, and after consultation with legal counsel, management believes that the ultimate outcome in such proceedings, in the aggregate, will not have a material adverse effect on the business, financial condition, or results of operations of the Company. Financial Instruments with Off-Balance Sheet Risk The Company is a party to financial instruments with off-balance sheet risk in the normal course of business to meet the financing needs of its customers and to reduce its own exposure to fluctuations in interest rates. These financial instruments include commitments to extend credit and letters of credit. These instruments involve elements of credit and interest rate risk in excess of the amount recognized on the Company’s Consolidated Balance Sheets. The contractual amounts of these instruments reflect the extent of the Company’s involvement in particular classes of financial instruments. The Company’s exposure to credit loss in the event of nonperformance by the other party to the financial instruments for commitments to extend credit and letters of credit written is represented by the contractual amount of these instruments. The Company uses the same credit policies in making commitments and conditional obligations as it does for on-balance sheet instruments. Unless noted otherwise, the Company does not require collateral or other security to support off-balance sheet financial instruments with credit risk. The Company considers credit losses related to off-balance sheet commitments by undergoing a similar process in evaluating losses for loans that are carried on the balance sheet. The Company considers historical loss and funding information, current and future economic conditions, risk ratings, and past due status among other factors in the consideration of expected credit losses in the Company’s off-balance sheet commitments to extend credit. The Company also records an indemnification reserve that includes balances relating to mortgage loans previously sold based on historical statistics and loss rates. As of December 31, 2020 and 2019, the Company’s reserves for unfunded commitment and indemnification were $10.8 million and $2.6 million, respectively. Commitments to extend credit are agreements to lend to customers as long as there are no violations of any conditions established in the contracts. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Because many of the commitments may expire without being completely drawn upon, the total commitment amounts do not necessarily represent future cash requirements. Letters of credit are conditional commitments issued by the Company to guarantee the performance of customers to third parties. The credit risk involved in issuing letters of credit is essentially the same as that involved in extending loans to customers. The following table presents the balances of commitments and contingencies as of December 31, (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020 2019 Commitments with off-balance sheet risk: ​ ​ Commitments to extend credit (1) ​ $ 4,722,412 ​ $ 4,691,272 Letters of credit ​ 161,827 ​ 209,658 Total commitments with off-balance sheet risk ​ $ 4,884,239 ​ $ 4,900,930 (1) Includes unfunded overdraft protection. ​ ​ ​ ​ ​ ​ ​ Prior to the first quarter of 2020, the Company was required to maintain a reserve against its deposits in accordance with Regulation D of the Federal Reserve Act. On March 15, 2020, the Federal Reserve Board announced that reserve requirement ratios would be reduced to zero percent effective March 26, 2020. This action eliminated reserve requirements for all depository institutions. As of December 31, 2020, the Company had approximately $290.5 million in deposits in other financial institutions, of which $251.0 million served as collateral for cash flow and loan swap derivatives. As of December 31, 2019, the Company had approximately $131.4 million in deposits in other financial institutions, of which $116.8 million served as collateral for cash flow and loan swap derivatives. For asset/liability management purposes, the Company uses interest rate swap agreements to hedge various exposures or to modify the interest rate characteristics of various balance sheet accounts. See Note 11 “Derivatives” for additional information. As part of the Company’s liquidity management strategy, it pledges collateral to secure various financing and other activities that occur during the normal course of business. The following tables present the types of collateral pledged, at December 31, 2020 and 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pledged Assets as of December 31, 2020 ​ ​ ​ ​ ​ ​ AFS HTM ​ ​ ​ ​ ​ ​ Cash ​ Securities (1) ​ Securities (1) ​ Loans (2) ​ Total Public deposits ​ $ — ​ $ 469,864 ​ $ 436,449 ​ $ — ​ $ 906,313 Repurchase agreements ​ — ​ 116,876 ​ — ​ — ​ 116,876 FHLB advances ​ — ​ 52,323 ​ — ​ 4,374,383 ​ 4,426,706 Derivatives ​ 251,047 ​ 785 ​ — ​ — ​ 251,832 Fed Funds ​ ​ — ​ ​ — ​ ​ — ​ ​ 340,847 ​ ​ 340,847 Other purposes ​ — ​ ​ 123,388 ​ ​ 8,634 ​ ​ — ​ ​ 132,022 Total pledged assets ​ $ 251,047 ​ $ 763,236 ​ $ 445,083 ​ $ 4,715,230 ​ $ 6,174,596 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (1) Balance represents market value. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (2) Balance represents book value. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pledged Assets as of December 31, 2019 ​ ​ ​ ​ ​ ​ AFS HTM ​ ​ ​ ​ ​ ​ Cash ​ Securities (1) ​ Securities (1) ​ Loans (2) ​ Total Public deposits ​ $ — ​ $ 467,266 ​ $ 292,096 ​ $ — ​ $ 759,362 Repurchase agreements ​ — ​ 79,299 ​ 7,602 ​ — ​ 86,901 FHLB advances ​ — ​ 63,812 ​ — ​ 3,846,934 ​ 3,910,746 Derivatives ​ 116,839 ​ 1,260 ​ — ​ — ​ 118,099 Fed Funds ​ ​ — ​ ​ — ​ ​ — ​ ​ 292,738 ​ ​ 292,738 Other purposes ​ — ​ 122,358 ​ 10,654 ​ — ​ 133,012 Total pledged assets ​ $ 116,839 ​ $ 733,995 ​ $ 310,352 ​ $ 4,139,672 ​ $ 5,300,858 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (1) Balance represents book value. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (2) Balance represents market value. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

DERIVATIVES

DERIVATIVES	12 Months Ended
	Dec. 31, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
DERIVATIVES	​ 11. DERIVATIVES The Company is exposed to economic risks arising from its business operations and uses derivatives primarily to manage risk associated with changing interest rates, and to assist customers with their risk management objectives. The Company designates certain derivatives as hedging instruments in a qualifying hedge accounting relationship (cash flow or fair value hedge). The remaining are classified as free-standing derivatives consisting of customer accommodation loan swaps and interest rate lock commitments that do not qualify for hedge accounting. Derivatives Counterparty Credit Risk Derivative instruments contain an element of credit risk that arises from the potential failure of a counterparty to perform according to the terms of the contract. The Company’s exposure to derivative counterparty credit risk, at any point in time, is equal to the amount reported as a derivative asset on the Company’s Consolidated Balance Sheets, assuming no recoveries of underlying collateral. ​ Effective January 1, 2019, as required under the Dodd-Frank Act, the Company clears eligible derivative transactions through CCPs such as the CME and LCH, which are often referred to as “central clearinghouses”. The Company clears certain OTC derivatives with central clearinghouses through FCMs as part of the regulatory requirement. The use of the CCPs and the FCMs reduces the Company’s bilateral counterparty credit exposures while it increases the Company’s credit exposures to CCPs and FCMs. The Company is required by CCPs to post initial and variation margin to mitigate the risk of non-payment through the Company’s FCMs. The Company’s FCM agreements governing these derivative transactions generally include provisions that may require the Company to post more collateral or otherwise change terms in the Company’s agreements under certain circumstances. For CME and LCH-cleared OTC derivatives, the Company characterizes variation margin cash payments as settlements. ​ The Company also enters into legally enforceable master netting agreements and collateral agreements, where possible, with certain derivative counterparties to mitigate the risk of default on a bilateral basis. These bilateral agreements typically provide the right to offset exposures and require one counterparty to post collateral on derivative instruments in a net liability position to the other counterparty. Cash Flow Hedges The Company designates derivatives as cash flow hedges when they are used to manage exposure to variability in cash flows related to forecasted transactions on variable rate financial instruments. The Company uses interest rate swap agreements as part of its hedging strategy by exchanging a notional amount, equal to the principal amount of the borrowings or commercial loans, for fixed-rate interest based on benchmarked interest rates. The original terms and conditions of the interest rate swaps vary and range in length. Amounts receivable or payable are recognized as accrued under the terms of the agreements. ​ All swaps were entered into with counterparties that met the Company’s credit standards, and the agreements contain collateral provisions protecting the at-risk party. The Company concluded that the credit risk inherent in the contract is not significant. ​ The Company assesses the effectiveness of each hedging relationship on a periodic basis using statistical regression analysis. The Company also measures the ineffectiveness of each hedging relationship using the change in variable cash flows method which compares the cumulative changes in cash flows of the hedging instrument relative to cumulative changes in the hedged item’s cash flows. In accordance with ASC 815, Derivatives and Hedging During the periods ended December 31, 2020 and 2019, the Company terminated interest rate swaps designated as cash flow hedges prior to their respective maturity dates resulting in net losses of approximately $1.8 million and $9.0 million, respectively, which resulted in the losses being recognized immediately in earnings as the forecasted transactions will not occur. The Company did not have any derivatives designated as cash flow hedges outstanding at December 31, 2020. Fair Value Hedge Derivatives are designated as fair value hedges when they are used to manage exposure to changes in the fair value of certain financial assets and liabilities, referred to as the hedged items, which fluctuate in value as a result of movements in interest rates. ​ Loans : ​ AFS Securities: During 2018, the Company entered into a swap agreement to hedge the interest rate risk on a portion of its fixed rate AFS securities. For the years ended December 31, 2020 and 2019, the aggregate notional amount of the related hedged items of the AFS securities totaled ​ The Company applies hedge accounting in accordance with ASC 815, Derivatives and Hedging, Loan Swaps During the normal course of business, the Company enters into interest rate swap loan relationships (“loan swaps”) with borrowers to help meet their financing needs. Upon entering into the loan swaps, the Company enters into offsetting positions with a third party in order to minimize interest rate risk. These back-to-back loan swaps qualify as financial derivatives with fair values as reported in “Other Assets” and “Other Liabilities” on the Company’s Consolidated Balance Sheets. ​ The following table summarizes key elements of the Company’s derivative instruments as of December 31, 2020 and 2019, segregated by derivatives that are considered accounting hedges and those that are not (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020 December 31, 2019 ​ ​ ​ ​ ​ Derivative (2) ​ ​ ​ ​ Derivative (2) ​ Notional or ​ ​ ​ ​ Notional or ​ ​ ​ ​ ​ ​ Contractual ​ ​ ​ ​ ​ ​ ​ Contractual ​ ​ ​ ​ ​ ​ ​ ​ Amount (1) ​ Assets ​ Liabilities ​ Amount (1) ​ Assets ​ Liabilities Derivatives designated as accounting hedges: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest rate contracts: ​ ​ ​ ​ ​ ​ ​ ​ ​ Cash flow hedges ​ $ — ​ $ — ​ $ — ​ $ 100,000 ​ $ — ​ $ 1,147 Fair value hedges ​ 124,726 ​ — ​ 12,483 ​ 133,078 ​ 182 ​ 6,256 Derivatives not designated as accounting hedges: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Loan Swaps : ​ ​ ​ ​ ​ ​ Pay fixed - receive floating interest rate swaps ​ 2,356,453 ​ 212 ​ 163,148 ​ 1,575,149 ​ 753 ​ 53,592 Pay floating - receive fixed interest rate swaps ​ 2,356,453 ​ 163,148 ​ 212 ​ 1,575,149 ​ 53,592 ​ 753 (1) Notional amounts are not recorded on the Company’s Consolidated Balance Sheets and are generally used only as a basis on which interest and other payments are determined. (2) Balances represent fair value of derivative financial instruments. ​ The following table summarizes the carrying value of the Company’s hedged assets in fair value hedges and the associated cumulative basis adjustments included in those carrying values as of December 31, 2020 and 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020 ​ December 31, 2019 ​ ​ ​ Cumulative ​ Cumulative ​ ​ ​ ​ ​ Amount of Basis ​ ​ ​ Amount of Basis ​ ​ ​ ​ ​ Adjustments ​ ​ ​ Adjustments ​ ​ ​ ​ ​ Included in the ​ ​ ​ Included in the ​ ​ Carrying Amount ​ Carrying ​ Carrying Amount ​ Carrying ​ ​ of Hedged ​ Amount of the ​ of Hedged ​ Amount of the ​ ​ Assets/(Liabilities) ​ Hedged ​ Assets/(Liabilities) ​ Hedged ​ ​ Amount (1) Assets/(Liabilities) ​ Amount (1) Assets/(Liabilities) Line items on the Consolidated Balance Sheets in which the hedged item is included: ​ ​ ​ ​ Securities available-for-sale (1) (2) ​ $ 166,413 ​ $ 7,297 ​ $ 206,799 ​ $ 4,072 Loans ​ 74,726 ​ 5,088 ​ 83,078 ​ 1,972 (1) These amounts include the amortized cost basis of the investment securities designated in hedging relationships for which the hedged item is the last layer expected to be remaining at the end of the hedging relationship. For the periods ended December 31, 2020 and 2019, the amortized cost basis of this portfolio was $166 million and $207 million, respectively, and the cumulative basis adjustment associated with this hedge was $ 7.3 million and $4.1 million, respectively. The amount of the designated hedged item at December 31, 2020 and 2019 totaled $50 million. (2) Carrying value represents amortized cost. (3) (4)

STOCKHOLDERS' EQUITY

STOCKHOLDERS' EQUITY	12 Months Ended
	Dec. 31, 2020
Equity [Abstract]
STOCKHOLDERS' EQUITY	12. STOCKHOLDERS’ EQUITY Series A Preferred Stock On June 9, 2020, the Company issued and sold 6,900,000 depositary shares, each representing a 1/400th ownership interest in a share of its Series A preferred stock, with a liquidation preference of $10,000 per share of Series A preferred stock (equivalent to $25 per depositary share), including 900,000 depositary shares pursuant to the exercise in full by the underwriters of their option to purchase additional depositary shares. The total net proceeds to the Company were approximately $166.4 million, after deducting the underwriting discount and other offering expenses payable by the Company. The Company is using the net proceeds of the offering for general corporate purposes in the ordinary course of its business, such as the repayment of debt, loan funding, acquisitions, additions to working capital, capital expenditures and investments in the Company’s subsidiaries. ​ Accumulated Other Comprehensive Income (Loss) The change in accumulated other comprehensive income (loss) for the year ended December 31, 2020 is summarized as follows, net of tax (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Unrealized ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Gains ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (Losses) for ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Unrealized ​ AFS ​ ​ ​ ​ Unrealized ​ ​ ​ ​ ​ Gains (Losses) ​ Securities ​ Change in Fair ​ Gains ​ ​ ​ ​ ​ on AFS ​ Transferred ​ Value of Cash ​ (Losses) ​ ​ ​ ​ ​ Securities ​ to HTM ​ Flow Hedges ​ on BOLI ​ Total Balance - December 31, 2019 ​ $ 37,877 ​ $ 75 ​ $ (782) ​ $ (1,595) ​ $ 35,575 Other comprehensive income (loss): ​ ​ ​ ​ ​ Other comprehensive income (loss) before reclassification ​ 45,996 ​ — ​ (699) ​ (2,098) ​ 43,199 Amounts reclassified from AOCI into earnings ​ (9,712) ​ (20) ​ 1,481 ​ 492 ​ (7,759) Net current period other comprehensive income (loss) ​ 36,284 ​ (20) ​ 782 ​ (1,606) ​ 35,440 Balance - December 31, 2020 ​ $ 74,161 ​ $ 55 ​ $ — ​ $ (3,201) ​ $ 71,015 ​ ​ The change in accumulated other comprehensive income (loss) for the year ended December 31, 2019 is summarized as follows, net of tax (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Unrealized ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Gains ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (Losses) for ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Unrealized ​ AFS ​ ​ ​ ​ Unrealized ​ ​ ​ ​ ​ Gains (Losses) ​ Securities ​ Change in Fair ​ Gains ​ ​ ​ ​ ​ on AFS ​ Transferred ​ Value of Cash ​ (Losses) on ​ ​ ​ ​ ​ Securities ​ to HTM ​ Flow Hedges ​ BOLI ​ Total Balance - December 31, 2018 ​ $ (5,949) ​ $ 95 ​ $ (3,393) ​ $ (1,026) ​ $ (10,273) Other comprehensive income (loss): ​ ​ ​ ​ ​ Other comprehensive income (loss) before reclassification ​ 49,890 ​ — ​ (5,103) ​ (646) ​ 44,141 Amounts reclassified from AOCI into earnings ​ (6,064) ​ (20) ​ 7,714 ​ 77 ​ 1,707 Net current period other comprehensive income (loss) ​ 43,826 ​ (20) ​ 2,611 ​ (569) ​ 45,848 Balance - December 31, 2019 ​ $ 37,877 ​ $ 75 ​ $ (782) ​ $ (1,595) ​ $ 35,575 ​ ​ The change in accumulated other comprehensive income (loss) for the year ended December 31, 2018 is summarized as follows, net of tax (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Unrealized ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Gains ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (Losses) for ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Unrealized ​ AFS ​ ​ ​ ​ Unrealized ​ ​ ​ ​ ​ Gains (Losses) ​ Securities ​ Change in Fair ​ Gains ​ ​ ​ ​ ​ on AFS ​ Transferred ​ Value of Cash ​ (Losses) ​ ​ ​ ​ ​ Securities ​ to HTM ​ Flow Hedges ​ on BOLI ​ Total Balance - December 31, 2017 ​ $ 1,874 ​ $ 2,705 ​ $ (4,361) ​ $ (1,102) ​ $ (884) Transfer of HTM securities to AFS securities (1) ​ 2,785 ​ (2,785) ​ — ​ — ​ — Cumulative effects from adoption of new accounting standards (2) (3) ​ 465 ​ 583 ​ (1,094) ​ — ​ (46) Other comprehensive income (loss): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other comprehensive income (loss) before reclassification ​ (10,711) ​ — ​ 1,087 ​ — ​ (9,624) Amounts reclassified from AOCI into earnings ​ (362) ​ (408) ​ 975 ​ 76 ​ 281 Net current period other comprehensive income (loss) ​ (11,073) ​ (408) ​ 2,062 ​ 76 ​ (9,343) Balance - December 31, 2018 ​ $ (5,949) ​ $ 95 ​ $ (3,393) ​ $ (1,026) ​ $ (10,273) (1) During the second quarter of 2018, the Company adopted ASU No. 2017-12, "Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities". As part of this adoption, the Company made a one-time election to transfer eligible HTM securities to the AFS category. The transfer of these securities resulted in an increase of approximately $400,000 to AOCI and is included as unrealized gains (losses) on AFS securities above. ​ (2) During the second quarter of 2018, the Company adopted ASU No. 2018-02 "Income Statement - Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income." As part of this adoption, the Company reclassified approximately $107,000 of these amounts from AOCI to retained earnings. ​ (3) During the first quarter of 2018, the Company adopted ASU No. 2016-01 "Financial Instruments - Overall (Subtopic 825-10) Recognition and Measurement of Financial Assets and Financial Liabilities." As part of this adoption, the Company reclassified approximately $61,000 of these amounts from AOCI to retained earnings. ​

REGULATORY MATTERS AND CAPITAL

REGULATORY MATTERS AND CAPITAL	12 Months Ended
	Dec. 31, 2020
Regulatory Capital Requirements [Abstract]
REGULATORY MATTERS AND CAPITAL	13. REGULATORY MATTERS AND CAPITAL Capital resources represent funds, earned or obtained, over which financial institutions can exercise greater or longer control in comparison with deposits and borrowed funds. Management seeks to maintain a capital structure that will assure an adequate level of capital to support anticipated asset growth and to absorb potential losses, yet allow management to effectively leverage its capital to maximize return to shareholders. 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 financial statements of the Company and the Bank. Under capital adequacy guidelines and the regulatory framework for PCA, the Company and the Bank must meet specific capital guidelines that involve quantitative measures of their assets, liabilities, and certain off-balance sheet items as calculated under regulatory accounting practices. The capital amounts and classifications are also subject to qualitative judgments by the regulators about components, risk weightings, and other factors. PCA provisions are not applicable to financial holding companies and bank holding companies, but only to their bank subsidiaries. As of December 31, 2020 and 2019, the most recent notification from the FRB categorized the Bank as “well capitalized” under the regulatory framework for PCA. To be categorized as “well-capitalized,” an institution must maintain minimum total risk-based, Tier 1 risk-based, Tier 1 leverage, and common equity Tier 1 ratios as set forth in the following tables. There are no conditions or events since that notification that management believes have changed the Bank’s category. On March 27, 2020, the banking agencies issued an interim final rule that allows the Company to phase in the impact of adopting the CECL methodology up to two years, with a three-year transition period to phase out the cumulative benefit to regulatory capital provided during the two-year delay. The Company is allowed to include the impact of the CECL transition, which is defined as the CECL Day 1 impact to capital plus 25% of the Company’s provision for credit losses during 2020, in regulatory capital through 2021. The Company elected to phase in the regulatory capital impact as permitted under the aforementioned interim final rule. Beginning in 2022, the transition amount will begin to impact regulatory capital by phasing it in over a three-year period ending in 2024. ​ The Company and the Bank’s capital amounts and ratios are also presented in the following table at December 31, 2020 and 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Required in Order to Be ​ ​ ​ ​ ​ ​ ​ Required for Capital ​ Well Capitalized Under ​ ​ Actual ​ Adequacy Purposes ​ PCA ​ Amount Ratio Amount Ratio Amount Ratio As of December 31, 2020 ​ ​ ​ Common equity Tier 1 capital to risk weighted assets: ​ ​ ​ Consolidated ​ $ 1,512,507 10.26 % $ 663,380 4.50 % NA NA ​ Atlantic Union Bank ​ 1,824,693 12.42 % 661,121 4.50 % 954,952 6.50 % Tier 1 capital to risk weighted assets: ​ ​ ​ Consolidated ​ 1,678,863 11.39 % 884,388 6.00 % NA NA ​ Atlantic Union Bank ​ 1,824,693 12.42 % 881,494 6.00 % 1,175,326 8.00 % Total capital to risk weighted assets: ​ ​ ​ Consolidated ​ 2,063,356 14.00 % 1,179,061 8.00 % NA NA ​ Atlantic Union Bank ​ 1,924,016 13.09 % 1,175,869 8.00 % 1,469,837 10.00 % Tier 1 capital to average adjusted assets: ​ ​ ​ Consolidated ​ 1,678,863 8.95 % 750,330 4.00 % NA NA ​ Atlantic Union Bank ​ 1,824,693 9.75 % 748,592 4.00 % 935,740 5.00 % As of December 31, 2019 ​ ​ ​ Common equity Tier 1 capital to risk weighted assets: ​ ​ ​ Consolidated ​ $ 1,437,908 10.24 % $ 631,893 4.50 % NA NA ​ Atlantic Union Bank ​ 1,704,426 12.18 % 629,714 4.50 % 909,587 6.50 % Tier 1 capital to risk weighted assets: ​ ​ ​ Consolidated ​ 1,437,908 10.24 % 842,524 6.00 % NA NA ​ Atlantic Union Bank ​ 1,704,426 12.18 % 839,619 6.00 % 1,119,492 8.00 % Total capital to risk weighted assets: ​ ​ ​ Consolidated ​ 1,773,835 12.63 % 1,123,569 8.00 % NA NA ​ Atlantic Union Bank ​ 1,747,620 12.48 % 1,120,269 8.00 % 1,400,337 10.00 % Tier 1 capital to average adjusted assets: ​ ​ ​ Consolidated ​ 1,437,908 8.79 % 654,338 4.00 % NA NA ​ Atlantic Union Bank ​ 1,704,426 10.45 % 652,412 4.00 % 815,515 5.00 % ​ In July 2013, the FRB issued a final rule that makes technical changes to its market risk capital rules to align them with the Basel III regulatory capital framework and meet certain requirements of the Dodd-Frank Act. The phase-in period for the final rules began on January 1, 2015. Full compliance with the final rules was phased in on January 1, 2019.

FAIR VALUE MEASUREMENTS

FAIR VALUE MEASUREMENTS	12 Months Ended
	Dec. 31, 2020
Fair Value Disclosures [Abstract]
FAIR VALUE MEASUREMENTS	14. FAIR VALUE MEASUREMENTS The Company follows ASC 820 to record fair value adjustments to certain assets and liabilities and to determine fair value disclosures. ASC 820 clarifies that fair value of certain assets and liabilities is an exit price, representing the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between willing market participants. ASC 820 specifies a hierarchy of valuation techniques based on whether the inputs to those valuation techniques are observable or unobservable. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect the Company’s market assumptions. The three levels of the fair value hierarchy under ASC 820 based on these two types of inputs are as follows: ​ ​ Level 1 Valuation is based on quoted prices in active markets for identical assets and liabilities. Level 2 Valuation is based on observable inputs including quoted prices in active markets for similar assets and liabilities, quoted prices for identical or similar assets and liabilities in less active markets, and model-based valuation techniques for which significant assumptions can be derived primarily from or corroborated by observable data in the markets. Level 3 Valuation is based on model-based techniques that use one or more significant inputs or assumptions that are unobservable in the market. These unobservable inputs reflect the Company’s assumptions about what market participants would use and information that is reasonably available under the circumstances without undue cost and effort. ​ Assets and Liabilities Measured at Fair Value on a Recurring Basis The following describes the valuation techniques used by the Company to measure certain financial assets and liabilities recorded at fair value on a recurring basis in the financial statements. Derivative instruments As discussed in Note 11 “Derivatives,” the Company records derivative instruments at fair value on a recurring basis. The Company utilizes derivative instruments as part of the management of interest rate risk to modify the re-pricing characteristics of certain portions of the Company’s interest-bearing assets and liabilities. The Company has contracted with a third-party vendor to provide valuations for derivatives using standard valuation techniques and therefore classifies such valuations as Level 2. Third party valuations are validated by the Company using Bloomberg Valuation Service’s derivative pricing functions. No material differences were identified during the validation as of December 31, 2020 and 2019. The Company has considered counterparty credit risk in the valuation of its derivative assets and has considered its own credit risk in the valuation of its derivative liabilities. Mortgage banking derivatives as of December 31, 2020 and 2019 did not have a material impact on the Company’s Consolidated Financial Statements. ​ AFS Securities AFS securities are recorded at fair value on a recurring basis. Fair value measurement is based upon quoted market prices, when available (Level 1). If quoted market prices are not available, fair values are measured utilizing independent valuation techniques of identical or similar securities for which significant assumptions are derived primarily from or corroborated by observable market data (Level 2). If the inputs used to provide the evaluation for certain securities are unobservable and/or there is little, if any, market activity, then the security would fall to the lowest level of the hierarchy (Level 3). ​ The Company’s investment portfolio is primarily valued using fair value measurements that are considered to be Level 2. The Company has contracted with a third-party portfolio accounting service vendor for valuation of its securities portfolio. The vendor’s primary source for security valuation is ICE Data Services, which evaluates securities based on market data. ICE Data Services utilizes evaluated pricing models that vary by asset class and include available trade, bid, and other market information. Generally, the methodology includes broker quotes, proprietary models, vast descriptive terms and conditions databases, as well as extensive quality control programs. The vendor utilizes proprietary valuation matrices for valuing all municipals securities. The initial curves for determining the price, movement, and yield relationships within the municipal matrices are derived from industry benchmark curves or sourced from a municipal trading desk. The securities are further broken down according to issuer, credit support, state of issuance, and rating to incorporate additional spreads to the industry benchmark curves. The Company primarily uses Bloomberg Valuation Service, an independent information source that draws on quantitative models and market data contributed from over 4,000 market participants, to validate third party valuations. Any material differences between valuation sources are researched by further analyzing the various inputs that are utilized by each pricing source. No material differences were identified during the validation as of December 31, 2020 and 2019. The carrying value of restricted FRB and FHLB stock approximates fair value based on the redemption provisions of each entity and is therefore excluded from the table below. Loans Held for Sale Loans held for sale are carried at fair value. These loans currently consist of residential loans originated for sale in the secondary market. Fair value is based on the price secondary markets are currently offering for similar loans using observable market data which is not materially different than cost due to the short duration between origination and sale (Level 2). Gains and losses on the sale of loans are recorded in current period earnings as a component of "Mortgage banking income" on the Company’s Consolidated Statements of Income. ​ The following table presents the balances of financial assets and liabilities measured at fair value on a recurring basis at December 31, 2020 and 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurements at December 31, 2020 using ​ ​ ​ Significant ​ ​ ​ ​ ​ ​ Quoted Prices in ​ Other ​ Significant ​ ​ ​ ​ ​ Active Markets for ​ Observable ​ Unobservable ​ ​ ​ ​ ​ Identical Assets ​ Inputs ​ Inputs ​ ​ ​ ​ ​ Level 1 ​ Level 2 ​ Level 3 ​ Balance ASSETS ​ ​ ​ ​ ​ AFS securities: ​ ​ ​ ​ ​ U.S. government and agency securities ​ $ — ​ $ 13,394 ​ $ — ​ $ 13,394 Obligations of states and political subdivisions ​ — ​ 837,326 ​ — ​ 837,326 Corporate and other bonds (1) ​ — ​ 151,078 ​ — ​ 151,078 Mortgage-backed securities ​ — ​ 1,536,996 ​ — ​ 1,536,996 Other securities ​ — ​ 1,625 ​ — ​ 1,625 Loans held for sale ​ — ​ 96,742 ​ — ​ 96,742 Derivatives: ​ ​ ​ ​ Interest rate swap ​ — ​ 163,360 ​ — ​ 163,360 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ LIABILITIES ​ ​ ​ ​ Derivatives: ​ ​ ​ ​ Interest rate swap ​ $ — ​ $ 163,360 ​ $ — ​ $ 163,360 Fair value hedges ​ — ​ 12,483 ​ — ​ 12,483 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurements at December 31, 2019 using ​ ​ ​ Significant ​ ​ ​ ​ ​ ​ Quoted Prices in ​ Other ​ Significant ​ ​ ​ ​ ​ Active Markets for ​ Observable ​ Unobservable ​ ​ ​ ​ ​ Identical Assets ​ Inputs ​ Inputs ​ ​ ​ ​ ​ Level 1 ​ Level 2 ​ Level 3 ​ Balance ASSETS ​ ​ ​ ​ ​ AFS securities: ​ ​ ​ ​ ​ U.S. government and agency securities ​ $ — ​ $ 21,320 ​ $ — ​ $ 21,320 Obligations of states and political subdivisions ​ ​ — ​ ​ 447,091 ​ ​ — ​ ​ 447,091 Corporate and other bonds (1) ​ — ​ 135,959 ​ — ​ 135,959 Mortgage-backed securities ​ — ​ 1,337,996 ​ — ​ 1,337,996 Other securities ​ — ​ 3,079 ​ — ​ 3,079 Loans held for sale ​ ​ — ​ ​ 55,405 ​ ​ — ​ ​ 55,405 Derivatives: ​ ​ ​ ​ Interest rate swap ​ — ​ 54,345 ​ — ​ 54,345 Fair value hedges ​ — ​ 182 ​ — ​ 182 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ LIABILITIES ​ ​ ​ ​ Derivatives: ​ ​ ​ ​ Interest rate swap ​ $ — ​ $ 54,345 ​ $ — ​ $ 54,345 Cash flow hedges ​ — ​ 1,147 ​ — ​ 1,147 Fair value hedges ​ — ​ 6,256 ​ — ​ 6,256 (1) Other bonds include asset-backed securities. ​ Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis Certain assets are measured at fair value on a nonrecurring basis in accordance with U.S. GAAP. Adjustments to the fair value of these assets usually result from the application of lower-of-cost-or-market accounting or write-downs of individual assets after they are evaluated for impairment. The primary assets accounted for at fair value on a nonrecurring basis are related to foreclosed properties, former bank premises, and collateral-dependent loans that are individually assessed. When the asset is secured by real estate, the Company measures the fair value utilizing an income or market valuation approach based on an appraisal conducted by an independent, licensed appraiser using observable market data. Management may discount the value from the appraisal in determining the fair value if, based on its understanding of the market conditions, the collateral had been impaired below the appraised value (Level 3). The assets for which a nonrecurring fair value measurement was recorded during the period ended December 31, 2020 and 2019 was million, respectively. The nonrecurring valuation adjustments for these assets did not have a material impact on the Company’s consolidated financial statements. Fair Value of Financial Instruments ASC 825, Financial Instruments Cash and Cash Equivalents For those short-term instruments, the carrying amount is a reasonable estimate of fair value. ​ HTM Securities The Company’s investment portfolio is primarily valued using fair value measurements that are considered to be Level 2. The Company has contracted with a third-party portfolio accounting service vendor for valuation of its securities portfolio. The vendor’s primary source for security valuation is ICE Data Services, which evaluates securities based on market data. ICE Data Services utilizes evaluated pricing models that vary by asset class and include available trade, bid, and other market information. Generally, the methodology includes broker quotes, proprietary models, vast descriptive terms and conditions databases, as well as extensive quality control programs. The vendor utilizes proprietary valuation matrices for valuing all municipals securities. The initial curves for determining the price, movement, and yield relationships within the municipal matrices are derived from industry benchmark curves or sourced from a municipal trading desk. The securities are further broken down according to issuer, credit support, state of issuance, and rating to incorporate additional spreads to the industry benchmark curves. The Company primarily uses Bloomberg Valuation Service, an independent information source that draws on quantitative models and market data contributed from over 4,000 market participants, to validate third party valuations. Any material differences between valuation sources are researched by further analyzing the various inputs that are utilized by each pricing source. No material differences were identified during the validation as of December 31, 2020 and 2019. The Company’s level 3 securities are a result of the Access acquisition and are comprised of asset-backed securities and municipal bonds. Valuations of the asset-backed securities are provided by a third party vendor specializing in the SBA markets, and are based on underlying loan pool information, market data, and recent trading activity for similar securities. Valuations of the municipal bonds are provided by a third party vendor that specializes in hard-to-value securities, and are based on a discounted cash flow model and considerations for the complexity of the instrument, likelihood it will be called and credit ratings. The Company reviews the valuation of both security types for reasonableness in the context of market conditions and to similar bonds in the Company’s portfolio. Any material differences between valuation sources are researched by further analyzing the various inputs that are utilized by each pricing source. No material differences were identified during the validation as of December 31, 2020 and 2019. Loans and Leases The fair value of loans and leases were estimated using an exit price, representing the amount that would be expected to be received if the Company sold the loans and leases. The fair value of performing loans and leases were estimated through use of discounted cash flows. Credit loss assumptions were based on market PD/LGD for loan and lease cohorts. The discount rate was based primarily on recent market origination rates. Fair value of loans and leases individually assessed and their respective levels within the fair value hierarchy are described in the previous section related to fair value measurements of assets that are measured on a nonrecurring basis. Bank owned life insurance The carrying value of BOLI approximates fair value. The Company records these policies at their cash surrender value, which is estimated using information provided by insurance carriers. Deposits The fair value of demand deposits, savings accounts, and certain money market deposits is the amount payable on demand at the reporting date. The fair value of certificates of deposits were valued using a discounted cash flow calculation that includes a market rate analysis of the current rates offered by market participants for certificates of deposits that mature in the same period. Accrued Interest The carrying amounts of accrued interest approximate fair value. ​ The carrying values and estimated fair values of the Company’s financial instruments as of December 31, 2020 and 2019 are as follows (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurements at December 31, 2020 using ​ ​ ​ Quoted Prices Significant ​ ​ ​ ​ ​ ​ ​ ​ ​ in Active ​ Other ​ Significant ​ ​ ​ ​ ​ ​ ​ ​ Markets for ​ Observable ​ Unobservable ​ Total Fair ​ ​ ​ ​ ​ Identical Assets ​ Inputs ​ Inputs ​ Value ​ ​ Carrying ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Value ​ Level 1 ​ Level 2 ​ Level 3 ​ Balance ASSETS ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Cash and cash equivalents ​ $ 493,294 ​ $ 493,294 ​ $ — ​ $ — ​ $ 493,294 AFS securities ​ 2,540,419 ​ — ​ 2,540,419 ​ — ​ 2,540,419 HTM securities ​ 544,851 ​ — ​ 606,496 ​ 13,269 ​ 619,765 Restricted stock ​ 94,782 ​ — ​ 94,782 ​ — ​ 94,782 Loans held for sale ​ 96,742 ​ — ​ 96,742 ​ — ​ 96,742 Net loans ​ 13,860,774 ​ — ​ — ​ 13,710,640 ​ 13,710,640 Derivatives: ​ ​ ​ ​ ​ Interest rate swap ​ 163,360 ​ — ​ 163,360 ​ — ​ 163,360 Accrued interest receivable ​ 75,757 ​ — ​ 75,757 ​ — ​ 75,757 BOLI ​ 326,892 ​ — ​ 326,892 ​ — ​ 326,892 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ LIABILITIES ​ ​ ​ ​ ​ Deposits ​ $ 15,722,765 ​ $ — ​ $ 15,763,991 ​ $ — ​ $ 15,763,991 Borrowings ​ 840,717 ​ — ​ 821,516 ​ — ​ 821,516 Accrued interest payable ​ 2,516 ​ — ​ 2,516 ​ — ​ 2,516 Derivatives: ​ ​ ​ ​ ​ Interest rate swap ​ 163,360 ​ — ​ 163,360 ​ — ​ 163,360 Fair value hedges ​ 12,483 ​ — ​ 12,483 ​ — ​ 12,483 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurements at December 31, 2019 using ​ ​ ​ ​ ​ Quoted Prices ​ Significant ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ in Active ​ Other ​ Significant ​ ​ ​ ​ ​ ​ ​ ​ Markets for ​ Observable ​ Unobservable ​ Total Fair ​ ​ ​ ​ ​ Identical Assets ​ Inputs ​ Inputs ​ Value ​ ​ Carrying ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Value ​ Level 1 ​ Level 2 ​ Level 3 ​ Balance ASSETS ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Cash and cash equivalents ​ $ 436,032 ​ $ 436,032 ​ $ — ​ $ — ​ $ 436,032 AFS securities ​ 1,945,445 ​ — ​ 1,945,445 ​ — ​ 1,945,445 HTM securities ​ 555,144 ​ — ​ 585,820 ​ 17,683 ​ 603,503 Restricted stock ​ 130,848 ​ — ​ 130,848 ​ — ​ 130,848 Loans held for sale ​ ​ 55,405 ​ ​ — ​ 55,405 ​ — ​ ​ 55,405 Net loans ​ 12,568,642 ​ — ​ — ​ 12,449,505 ​ 12,449,505 Derivatives: ​ ​ ​ ​ ​ Interest rate swap ​ 54,345 ​ — ​ 54,345 ​ — ​ 54,345 Fair value hedges ​ 182 ​ — ​ 182 ​ — ​ 182 Accrued interest receivable ​ 52,721 ​ — ​ 52,721 ​ — ​ 52,721 BOLI ​ 322,917 ​ — ​ 322,917 ​ — ​ 322,917 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ LIABILITIES ​ ​ ​ ​ ​ Deposits ​ $ 13,304,981 ​ $ — ​ $ 13,349,943 ​ $ — ​ $ 13,349,943 Borrowings ​ 1,513,748 ​ — ​ 1,479,606 ​ — ​ 1,479,606 Accrued interest payable ​ 6,108 ​ — ​ 6,108 ​ — ​ 6,108 Derivatives: ​ ​ ​ ​ ​ Interest rate swap ​ 54,345 ​ — ​ 54,345 ​ — ​ 54,345 Cash flow hedges ​ 1,147 ​ — ​ 1,147 ​ — ​ 1,147 Fair value hedges ​ 6,256 ​ — ​ 6,256 ​ — ​ 6,256 ​ The Company assumes interest rate risk (the risk that general interest rate levels will change) as a result of its normal operations. As a result, the fair values of the Company’s financial instruments will change when interest rate levels change and that change may be either favorable or unfavorable to the Company. Management attempts to match maturities of assets and liabilities to the extent believed necessary to minimize interest rate risk. Borrowers with fixed rate obligations, however, are less likely to prepay in a rising rate environment and more likely to prepay in a falling rate environment. Conversely, depositors who are receiving fixed rates are more likely to withdraw funds before maturity in a rising rate environment and less likely to do so in a falling rate environment. Management monitors rates and maturities of assets and liabilities and attempts to minimize interest rate risk by adjusting terms of new loans and deposits and by investing in securities with terms that mitigate the Company’s overall interest rate risk.

REVENUE

REVENUE	12 Months Ended
	Dec. 31, 2020
Revenue from Contract with Customer [Abstract]
REVENUE	15. REVENUE The majority of the Company’s noninterest income comes from short term contracts associated with fees for services provided on deposit accounts, credit cards, and wealth management accounts, and mortgage banking and is being accounted for in accordance with Topic 606. Typically, the duration of a contract does not extend beyond the services performed; therefore, the Company concluded that discussion regarding contract balances is immaterial. The Company’s performance obligations on revenue from interchange fees and deposit accounts are generally satisfied immediately, when the transaction occurs, or by month-end. Performance obligations on revenue from fiduciary and asset management fees are generally satisfied monthly or quarterly. For a majority of fee income on deposit accounts the Company is a principal, controlling the promised good or service before transferring it to the customer. For the majority of income related to wealth management income, the Company is an agent, responsible for arranging for the provision of goods and services by another party. Mortgage banking income is earned when the originated loans are sold to an investor on the secondary market. The loans are classified as loans held for sale prior to being sold. Additionally, the changes in fair value of the loans held for sale, loan commitments, and related derivatives are included in mortgage banking income. Noninterest income disaggregated by major source for the years ended December 31, 2020, 2019, and 2018 consisted of the following (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020 ​ 2019 ​ 2018 Noninterest income: ​ ​ ​ Deposit Service Charges (1) ​ ​ ​ Overdraft fees ​ $ 17,792 ​ $ 24,092 ​ $ 21,052 Maintenance fees & other ​ 7,459 ​ 6,110 ​ 4,387 Other service charges, commissions, and fees (1) ​ 6,292 ​ 6,423 ​ 5,603 Interchange fees (1) ​ 7,184 ​ 14,619 ​ 18,803 Fiduciary and asset management fees (1) ​ ​ ​ ​ Trust asset management fees ​ 10,804 ​ 9,141 ​ 5,536 Registered advisor management fees ​ 8,657 ​ 10,107 ​ 6,589 Brokerage management fees ​ 4,189 ​ 4,117 ​ 4,025 Mortgage banking income ​ 25,857 ​ 10,303 ​ — Gains on securities transactions ​ 12,294 ​ 7,675 ​ 383 Bank owned life insurance income ​ 9,554 ​ 8,311 ​ 7,198 Loan-related interest rate swap fees ​ 15,306 ​ 14,126 ​ 3,554 Gain on Shore Premier sale ​ — ​ — ​ 19,966 Other operating income (2)(3) ​ 6,098 ​ 17,791 ​ 7,145 Total noninterest income (4) ​ $ 131,486 ​ $ 132,815 ​ $ 104,241 (1) Income within scope of Topic 606. (2) Includes income within the scope of Topic 606 of $3.5 million, $4.0 million and $4.4 million for the years ended December 31, 2020, 2019, and 2018, respectively. The remaining balance is outside the scope of Topic 606. (3) For the year ended December 31, 2019, the remaining balance outside the scope of Topic 606 includes $9.8 million in life insurance proceeds related to a Xenith-acquired loan that had been charged off prior to the Company’s acquisition of Xenith. (4) Noninterest income for the discontinued mortgage segment is reported in Note 19 “Segment Reporting & Discontinued Operations.” ​

EMPLOYEE BENEFITS AND STOCK BAS

EMPLOYEE BENEFITS AND STOCK BASED COMPENSATION	12 Months Ended
	Dec. 31, 2020
Employee Benefits and Share-based Compensation, Noncash [Abstract]
EMPLOYEE BENEFITS AND STOCK BASED COMPENSATION	16. EMPLOYEE BENEFITS AND STOCK BASED COMPENSATION The Company has a 401(k) Plan designed to qualify under Section 401 of the Code that allows employees to defer a portion of their salary compensation as savings for retirement. The 401(k) Plan provides for the Company to match employee contributions based on each employee’s elected contribution percentage. For each employee’s 1% through 3% dollar contributions, the Company will match 100% of such dollar contributions, and for each employee’s 4% through 5% dollar contributions, the Company will match 50% of such dollar contributions. All employees are eligible to participate in the 401(k) Plan after meeting minimum age and service requirements. The Company also has an ESOP. All employees of the Company meeting minimum age and service requirements are eligible to participate in the ESOP plan. The Company makes discretionary profit-sharing contributions into the 401(k) Plan, ESOP, and in cash bonus payments. Company discretionary contributions to both the 401(k) Plan and the ESOP are allocated to participant accounts in proportion to each participant’s compensation and vest according to the respective plan’s vesting schedule. Employee contributions to the ESOP are not allowed. Amounts presented include discontinued operations. Refer to Note 19 "Segment Reporting & Discontinued Operations" in Item 8 "Financial Statements and Supplementary Data" of this Form 10-K for further discussion regarding discontinued operations. The following 401(k) Plan match and other discretionary contributions were made to the Company’s employees, in accordance with the plans described above, in 2020, 2019, and 2018 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020 2019 2018 401(k) Plan ​ $ 6,265 ​ $ 5,550 ​ $ 4,592 ESOP ​ 1,000 ​ 1,163 ​ 1,005 Cash ​ 697 ​ 780 ​ 1,509 Total ​ $ 7,962 ​ $ 7,493 ​ $ 7,106 ​ The Company maintains certain deferred compensation arrangements with employees and certain current and former members of the Bank’s Boards of Directors. Under these deferred compensation plans, the Company had an obligation of $15.8 million at December 31, 2020 and $15.7 million at December 31, 2019. The Company owns life insurance policies on plan beneficiaries as an informal funding vehicle to meet future benefit obligations. On May 2, 2019, the Company’s Board of Directors authorized the name change of the Company’s equity compensation plan to the Atlantic Union Bankshares Corporation Stock and Incentive Plan (the “Plan”), which became effective on May 20, 2019. The Company may grant awards under the Plan until April 20, 2025. The Plan was previously called the Union Bankshares Corporation Stock and Incentive Plan (the “Amended and Restated SIP”), which amended and restated the former equity compensation plan (the “2011 Plan”). The Amended and Restated SIP became effective on April 21, 2015 upon shareholder approval. The Amended and Restated SIP amended the 2011 Plan to, among other things, increase the maximum number of shares of the Company’s common stock issuable under the plan from The Plan provides for the granting of stock-based awards to key employees and non-employee directors of the Company and its subsidiaries in the form of: (i) stock options; (ii) RSAs, (iii) RSUs, (iv) stock awards; (v) PSUs; and performance cash awards. The Company issues new shares to satisfy stock-based awards. For option awards, the option price cannot be less than the fair market value of the stock on the grant date. Stock option awards have a maximum term of ten years from the date of grant, and generally become exercisable over a 5 year period beginning on the first anniversary of the date of grant. No stock options have been granted since February 2012. In 2019 the Company assumed additional stock options with the acquisition of Access. The stock option awards have a maximum term of five years from the date of grant, and generally become exercisable over a 4 year period beginning on the first anniversary of the date of grant. RSAs and PSUs typically have vesting schedules over For the years ended December 31, 2020, 2019, and 2018, the Company recognized stock-based compensation expense, which is included in salaries and benefits expense on the Company’s Consolidated Statements of Income (dollars in thousands, except per share data) as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, ​ 2020 2019 ​ 2018 Stock-based compensation expense ​ $ 9,258 ​ $ 8,332 ​ $ 6,132 Reduction of income tax expense ​ 1,944 ​ 1,750 ​ 1,287 Per share compensation cost ​ $ 0.09 ​ $ 0.08 ​ $ 0.07 ​ Stock Options The following table summarizes the stock option activity during the year ended December 31, 2020: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted ​ ​ ​ ​ ​ ​ Weighted ​ Average ​ ​ ​ ​ ​ Stock ​ Average ​ Remaining ​ Aggregate ​ ​ Options ​ Exercise ​ Contractual ​ Intrinsic ​ ​ (shares) ​ Price ​ Life ​ Value Outstanding as of December 31, 2019 422,138 ​ $ 32.48 ​ Granted — ​ — ​ Exercised (46,278) ​ 22.04 ​ Forfeited (4,582) ​ 31.83 ​ Expired (22,618) ​ 33.40 ​ Outstanding as of December 31, 2020 348,660 ​ 33.81 1.76 ​ $ 798,340 Exercisable as of December 31, 2020 317,237 ​ 34.00 1.63 ​ 764,501 ​ During the year ended December 31, 2020, there were 46,278 stock options exercised with a total intrinsic value (the amount by which the stock price exceeded the exercise price) and fair value of approximately $555,000 and $1.6 million, respectively. Cash received from the exercise of stock options for the year ended December 31, 2020 was approximately $1.0 million, and the tax benefit realized from tax deductions associated with options exercised during the year was approximately $112,000 . The total intrinsic value of all stock options outstanding was $798,000 During the year ended December 31, 2019, there were 56,619 stock options exercised with a total intrinsic value (the amount by which the stock price exceeded the exercise price) and fair value of approximately $684,000 and $2.1 million, respectively. Cash received from the exercise of stock options for the year ended December 31, 2019 was approximately $1.4 million, and the tax benefit realized from tax deductions associated with options exercised during the year was approximately $127,000. The total intrinsic value of all stock options outstanding was $2.3 million as of December 31, 2019. During the year ended December 31, 2018, there were 72,743 stock options exercised with a total intrinsic value (the amount by which the stock price exceeded the exercise price) and fair value of approximately $1.9 million and $2.8 million, respectively. Cash received from the exercise of stock options for the year ended December 31, 2018 was approximately $983,000, and the tax benefit realized from tax deductions associated with options exercised during the year was approximately $390,000. The total intrinsic value of all stock options outstanding was $656,000 as of December 31, 2018. Restricted Stock The Plan permits the granting of RSAs. Generally, RSAs vest one-third The following table summarizes the restricted stock activity for the year ended December 31, 2020: ​ ​ ​ ​ ​ ​ ​ ​ Weighted ​ ​ Number of ​ Average ​ ​ Shares of ​ Grant-Date Fair ​ ​ RSAs ​ Value Unvested as of December 31, 2019 431,642 ​ $ 34.90 Granted 208,514 ​ 33.63 Net settle for taxes (55,336) ​ 36.40 Vested (161,445) ​ 32.09 Forfeited (16,868) ​ 34.19 Unvested as of December 31, 2020 406,507 ​ 35.61 ​ ​ Performance Stock The Plan permits the granting of PSUs. PSUs are granted to certain employees at no cost to the recipient and are subject to vesting based on achieving certain performance metrics; the grant of PSUs is subject to approval by the Company’s Compensation Committee at its sole discretion. PSUs may be paid in cash or shares of common stock or a combination thereof. Holders of PSUs have no right to vote the shares represented by the units. In 2020, the PSUs awarded were market based awards with the number of PSUs ultimately earned based on the Company’s total shareholder return as measured over the performance period. ​ ​ ​ ​ ​ ​ ​ ​ Number of Weighted Average ​ ​ Shares of ​ Grant- ​ ​ PSUs ​ Date Fair Value Unvested as of December 31, 2019 144,709 ​ $ 37.24 Granted 108,302 ​ 33.99 Net settle for taxes (14,186) ​ 44.72 Vested (38,922) ​ 39.80 Forfeited (2,093) ​ 32.50 Unvested as of December 31, 2020 197,810 ​ 34.84 ​ During years ended December 31, 2020, 2019 and 2018 PSUs were awarded with a market based component based on total shareholder return. The fair value of each PSU granted is estimated on the date of grant using the Monte Carlo simulation lattice model that uses the assumptions noted in the following table: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020 (5) 2019 (5) 2018 (5) Dividend yield (1) 2.83 % 2.57 % 2.25 % Expected life in years (2) 2.86 2.86 2.86 ​ Expected volatility (3) 24.33 % 24.04 % 23.47 % Risk-free interest rate (4) 1.35 % 2.48 % 2.38 % (1) Calculated as the ratio of the current dividend paid per the stock price on the date of grant. (2) Represents the remaining performance period as of the grant date. (3) Based on the historical volatility for the period commensurate with the expected life of the PSUs. (4) Based upon the zero-coupon U.S. Treasury rate commensurate with the expected life of the PSUs on the grant date. (5) Assumptions disclosed represent those used in the primary annual issuance. The estimated unamortized compensation expense, net of estimated forfeitures, related to, restricted stock, performance stock and stock options issued and outstanding as of December 31, 2020 that will be recognized in future periods is as follows (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Restricted Performance ​ ​ Stock ​ ​ ​ ​ Stock ​ Stock ​ ​ Options ​ Total 2021 ​ $ 4,997 ​ $ 1,844 ​ $ 67 ​ $ 6,908 2022 ​ 2,579 ​ 957 ​ ​ 66 ​ 3,602 2023 ​ 434 ​ — ​ ​ 4 ​ 438 2024 ​ 42 ​ — ​ ​ — ​ 42 Total ​ $ 8,052 ​ $ 2,801 ​ $ 137 ​ $ 10,990 ​ ​

INCOME TAXES

INCOME TAXES	12 Months Ended
	Dec. 31, 2020
Income Tax Disclosure [Abstract]
INCOME TAXES	17. INCOME TAXES The Company files income tax returns in the U.S., the Commonwealth of Virginia, and other states. With few exceptions, the Company is no longer subject to U.S. federal or state income tax examinations by tax authorities for years prior to 2017. Net deferred tax assets and liabilities consist of the following components as of December 31, 2020 and 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ 2020 2019 Deferred tax assets: ​ ​ Credit losses ​ $ 48,505 ​ $ 18,938 Benefit plans ​ 3,332 ​ 3,507 Acquisition accounting ​ 10,038 ​ 16,021 Lease right-of-use asset ​ ​ 14,893 ​ ​ 13,507 Stock grants ​ 2,305 ​ 2,032 OREO ​ 2,971 ​ 3,295 Securities available for sale ​ 1,017 ​ 1,169 Net operating losses ​ 47,463 ​ 55,023 Nonaccrual loans ​ 2,011 ​ 3,243 Other ​ 7,287 ​ 4,227 Total deferred tax assets ​ $ 139,822 ​ $ 120,962 Deferred tax liabilities: ​ ​ Acquisition accounting ​ $ 16,271 ​ $ 19,815 Lease right-of-use liability ​ ​ 12,012 ​ ​ 11,191 Premises and equipment ​ 19,066 ​ 6,696 Securities available for sale ​ 19,714 ​ 10,069 Other ​ 674 ​ 511 Total deferred tax liabilities ​ 67,737 ​ 48,282 Net deferred tax asset ​ $ 72,085 ​ $ 72,680 ​ At December 31, 2020, the Company had federal net operating loss carryforwards of approximately $165.2 million, of which approximately $144.4 million under pre-2018 law can be carried forward 20 years, and $20.8 million that can be carried forward indefinitely. The Company also had state net operating loss carryforwards of approximately $334.1 million, of which approximately $226.1 million will begin to expire after 2026 The Company has analyzed the tax positions taken or expected to be taken in its tax returns and concluded it has no liability related to uncertain tax positions in accordance with applicable ASC 740, Accounting for Uncertainty in Income Taxes The provision for income taxes charged to continuing operations for the years ended December 31, 2020, 2019, and 2018 consists of the following (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020 2019 2018 Current tax expense ​ $ 25,376 ​ $ 22,500 ​ $ 12,114 Deferred tax expense ​ 2,690 ​ 15,057 ​ 17,902 Income tax expense ​ $ 28,066 ​ $ 37,557 ​ $ 30,016 ​ The income tax expense differs from the amount of income tax determined by applying the U.S. federal income tax rate to pre-tax income for the years ended December 31, 2020, 2019, and 2018, due to the following (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020 2019 2018 Computed "expected" tax expense ​ $ 39,122 ​ $ 48,564 ​ $ 37,680 (Decrease) in taxes resulting from: ​ ​ ​ Tax-exempt interest income, net ​ (8,844) ​ (8,259) ​ (5,188) State income tax benefit ​ ​ (310) ​ ​ (1,078) ​ ​ (1,133) Other tax exempt income, net ​ (1,902) ​ (1,670) ​ (1,343) Income tax expense ​ $ 28,066 ​ $ 37,557 ​ $ 30,016 ​ The effective tax rates were 15.1%, 16.2% and 16.7% for years ended December 31, 2020, 2019, and 2018, respectively. Tax credits totaled approximately $3.0 million, $2.9 million and $1.1 million for the years ended December 31, 2020, 2019, and 2018, respectively.

EARNINGS PER SHARE

EARNINGS PER SHARE	12 Months Ended
	Dec. 31, 2020
Earnings Per Share [Abstract]
EARNINGS PER SHARE	Basic EPS is computed by dividing net income available to common shareholders by the weighted average number of common shares outstanding during the period. Diluted EPS is computed using the weighted average number of common shares outstanding during the period, including the effect of dilutive potential common shares outstanding attributable to stock awards. ​ The following table presents EPS from continuing operations, discontinued operations and total net income available to common shareholders for the years ended December 31, (in thousands except per share data): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020 2019 2018 Net Income: ​ ​ ​ Income from continuing operations ​ $ 158,228 ​ $ 193,698 ​ $ 149,413 Income (loss) from discontinued operations ​ — ​ (170) ​ (3,165) Net income ​ ​ 158,228 ​ ​ 193,528 ​ ​ 146,248 Preferred Stock Dividends ​ ​ 5,658 ​ ​ — ​ ​ — Net income available to common shareholders ​ $ 152,570 ​ $ 193,528 ​ $ 146,248 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted average shares outstanding, basic ​ 78,859 ​ 80,201 ​ 65,859 Dilutive effect of stock awards and warrants ​ 17 ​ 63 ​ 50 Weighted average shares outstanding, diluted ​ 78,876 ​ 80,264 ​ 65,909 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Basic EPS: ​ ​ ​ EPS from continuing operations ​ $ 1.93 ​ $ 2.41 ​ $ 2.27 EPS from discontinued operations ​ ​ — ​ ​ — ​ ​ (0.05) EPS available to common shareholders ​ $ 1.93 ​ $ 2.41 ​ $ 2.22 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Diluted EPS: ​ ​ ​ EPS from continuing operations ​ $ 1.93 ​ $ 2.41 ​ $ 2.27 EPS from discontinued operations ​ ​ — ​ ​ — ​ ​ (0.05) EPS available to common shareholders ​ $ 1.93 ​ $ 2.41 ​ $ 2.22 ​

SEGMENT REPORTING & DISCONTINUE

SEGMENT REPORTING & DISCONTINUED OPERATIONS	12 Months Ended
	Dec. 31, 2020
Segment Reporting [Abstract]
SEGMENT REPORTING & DISCONTINUED OPERATIONS	19. SEGMENT REPORTING & DISCONTINUED OPERATIONS Operating segments are components of a business about which separate financial information is available and evaluated regularly by the chief operating decision makers in deciding how to allocate resources and assessing performance. The Bank is the Company’s only reportable Prior to the second quarter of 2018, the Company had two reportable operating segments; community banking and mortgage. On May 23, 2018, the Bank announced that it had entered into an agreement with a third-party mortgage company TFSB to allow TFSB to offer residential mortgages from certain Bank locations on the terms and conditions set forth in the agreement. Concurrently with that arrangement, the Bank began the process of winding down the operations of UMG, the Company’s reportable mortgage segment. Effective at the close of business June 1, 2018, UMG was no longer originating mortgages in its name. The decision to wind down the operations of UMG was based on a number of strategic priorities and other factors, including the additional investment in the business required to achieve the necessary scale to be competitive. As a result of this decision, the community bank segment is the only remaining reportable segment and does not require separate reporting disclosures. On May 30, 2019, the Bank notified TFSB that the Bank was terminating its primary agreement with TFSB and will no longer allow TFSB to offer residential mortgages from Bank locations. UMG operations remain discontinued, although the Company continues to offer residential mortgages through a division of the Bank. As of December 31, 2020, the assets and liabilities, as well as the operating results, of the discontinued mortgage segment were not considered material. As of December 31, 2019, the Company’s Consolidated Balance Sheets included assets and liabilities from discontinued operations of $668,000 and $640,000, respectively. Management believes there are no material on-going obligations with respect to UMG’s business that have not been recorded in the Company’s consolidated financial statements. The following table presents summarized operating results of the discontinued mortgage segment at December 31, 2019 and 2018 respectively (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2019 2018 Net interest income ​ ​ $ — ​ $ 850 Provision for credit losses ​ ​ — ​ (185) Net interest income after provision for credit losses ​ ​ — ​ 1,035 Noninterest income ​ ​ 1 ​ 3,882 Noninterest expenses ​ ​ 231 ​ 9,197 Income before income taxes ​ ​ (230) ​ (4,280) Income tax expense (benefit) ​ ​ (60) ​ (1,115) Net income (loss) on discontinued operations ​ ​ $ (170) ​ $ (3,165) ​ ​

RELATED PARTY TRANSACTIONS

RELATED PARTY TRANSACTIONS	12 Months Ended
	Dec. 31, 2020
Related Party Transactions [Abstract]
RELATED PARTY TRANSACTIONS	20. RELATED PARTY TRANSACTIONS In the ordinary course of business, the Company may have loans issued to its executive officers, directors, and principal shareholders. Pursuant to its policy, such loans are made in the ordinary course of business and do not involve more than the normal risk of collectability.

PARENT COMPANY FINANCIAL INFORM

PARENT COMPANY FINANCIAL INFORMATION	12 Months Ended
	Dec. 31, 2020
Condensed Financial Information Disclosure [Abstract]
PARENT COMPANY FINANCIAL INFORMATION	21. PARENT COMPANY FINANCIAL INFORMATION The primary source of funds for the dividends paid by Atlantic Union Bankshares Corporation (for this note only, the “Parent Company”) is dividends received from its subsidiaries. The payments of dividends by the Bank to the Parent Company are subject to certain statutory limitations which contemplate that the current year earnings and earnings retained for the two preceding years may be paid to the Parent Company without regulatory approval. As of December 31, 2020, the aggregate amount of unrestricted funds that could be transferred from the Bank to the Parent Company without prior regulatory approval totaled approximately $370.8 million, or 13.69%, of the consolidated net assets. Financial information for the Parent Company is as follows: PARENT COMPANY CONDENSED BALANCE SHEETS AS OF DECEMBER 31, 2020 and 2019 (Dollars in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020 2019 ASSETS ​ ​ Cash ​ $ 116,748 ​ $ 5,283 Premises and equipment, net ​ 10,435 ​ 10,568 Other assets ​ 30,429 ​ 27,438 Investment in subsidiaries ​ 2,858,608 ​ 2,786,842 Total assets ​ $ 3,016,220 ​ $ 2,830,131 LIABILITIES AND STOCKHOLDERS' EQUITY ​ ​ Long-term borrowings ​ $ 148,806 ​ $ 157,155 Trust preferred capital notes ​ 141,023 ​ 140,237 Other liabilities ​ 17,901 ​ 19,637 Total liabilities ​ 307,730 ​ 317,029 Total stockholders' equity ​ 2,708,490 ​ 2,513,102 Total liabilities and stockholders' equity ​ $ 3,016,220 ​ $ 2,830,131 ​ ​ PARENT COMPANY CONDENSED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME YEARS ENDED DECEMBER 31, 2020, 2019, and 2018 (Dollars in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020 2019 ​ 2018 Income: ​ ​ ​ Interest and dividend income ​ $ — ​ $ 3 ​ $ — Dividends received from subsidiaries ​ 97,880 ​ 160,033 ​ 50,750 Other operating income ​ 1,338 ​ 1,484 ​ 2,719 Total income ​ 99,218 ​ 161,520 ​ 53,469 Expenses: ​ ​ ​ Interest expense ​ 13,506 ​ 15,935 ​ 15,253 Other operating expenses ​ 8,249 ​ 11,434 ​ 13,782 Total expenses ​ 21,755 ​ 27,369 ​ 29,035 Income before income taxes and equity in undistributed net income from subsidiaries ​ 77,463 ​ 134,151 ​ 24,434 Income tax benefit ​ (5,439) ​ (6,499) ​ (6,176) Equity in undistributed net income from subsidiaries ​ 75,326 ​ 52,878 ​ 115,638 Net income ​ $ 158,228 ​ $ 193,528 ​ $ 146,248 Comprehensive income ​ $ 193,668 ​ $ 239,376 ​ $ 136,905 ​ ​ PARENT COMPANY CONDENSED STATEMENTS OF CASH FLOWS YEARS ENDED DECEMBER 31, 2020, 2019, and 2018 (Dollars in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020 2019 2018 Operating activities: ​ ​ ​ Net income ​ $ 158,228 ​ $ 193,528 ​ $ 146,248 Adjustments to reconcile net income to net cash provided by operating activities: ​ ​ ​ Equity in undistributed net income of subsidiaries ​ (75,326) ​ (52,878) ​ (115,638) Depreciation of premises and equipment ​ 439 ​ 424 ​ 424 Acquisition accounting amortization, net ​ 735 ​ 662 ​ 636 Gain on sale of investment ​ — ​ — ​ (1,416) Issuance of common stock for services ​ 804 ​ 910 ​ 914 Net increase in other assets ​ (3,005) ​ (3,256) ​ (584) Net increase (decrease) in other liabilities ​ 10,038 ​ 4,964 ​ (4,159) Net cash provided by (used in) operating activities ​ 91,913 ​ 144,354 ​ 26,425 Investing activities: ​ ​ ​ Net increase in premises and equipment ​ (306) ​ (355) ​ — Proceeds from sale of investment ​ — ​ — ​ 3,761 Increase in equity method investments ​ ​ (2,353) ​ ​ — ​ ​ — Cash paid in acquisitions ​ ​ — ​ ​ (12) ​ ​ — Cash received in acquisitions ​ — ​ 21,553 ​ 25,976 Net cash provided by (used in) investing activities ​ (2,659) ​ 21,186 ​ 29,737 Financing activities: ​ ​ ​ Net increase (decrease) in short-term borrowings ​ — ​ (5,000) ​ 5,000 Repayments of long-term borrowings ​ (8,500) ​ — ​ — Cash dividends paid - common stock ​ (78,860) ​ (78,345) ​ (58,001) Cash dividends paid - preferred stock ​ ​ (5,658) ​ ​ — ​ ​ — Cancellation of warrants ​ — ​ — ​ (1,530) Issuance (repurchase) of common stock ​ (48,866) ​ (78,292) ​ 2,347 Issuance of preferred stock, net ​ ​ 166,356 ​ ​ — ​ ​ — Vesting of restricted stock, net of shares held for taxes ​ (2,261) ​ (2,301) ​ (2,908) Net cash provided by (used in) financing activities ​ 22,211 ​ (163,938) ​ (55,092) Increase (decrease) in cash and cash equivalents ​ 111,465 ​ 1,602 ​ 1,070 Cash, cash equivalents and restricted cash at beginning of the period ​ 5,283 ​ 3,681 ​ 2,611 Cash, cash equivalents and restricted cash at end of the period ​ $ 116,748 ​ $ 5,283 ​ $ 3,681 Supplemental schedule of noncash investing and financing activities ​ ​ ​ Issuance of common stock in exchange for net assets in acquisition ​ $ — ​ $ 499,974 ​ $ 794,809 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Transactions related to bank acquisition ​ ​ ​ Assets acquired ​ — ​ 509,075 ​ 859,176 Liabilities assumed ​ — ​ 9,089 ​ 64,367 ​

SUBSEQUENT EVENTS

SUBSEQUENT EVENTS	12 Months Ended
	Dec. 31, 2020
Subsequent Events [Abstract]
SUBSEQUENT EVENTS	22. SUBSEQUENT EVENTS The Company’s management has evaluated subsequent events through February 26, 2021, the date the financial statements were issued. On January 28, 2021, the Company’s Board of Directors declared a quarterly dividend of $0.25 per share of common stock. The common stock dividend is payable on February 26, 2021 to common shareholders of record as of February 12, 2021. ​ The Company’s Board of Directors also declared a quarterly dividend on the outstanding shares of its Series A preferred stock. The Series A preferred stock is represented by depositary shares, each representing a 1/400th ownership interest in a share of Series A preferred stock. The dividend of $171.88 per share (equivalent to $0.43 per outstanding depositary share) is payable on March 1, 2021 to preferred shareholders of record as of February 12, 2021. ​ The Company consolidated five branch locations in February 2021. ​ In response to the current rate environment, the Company prepaid a $200.0 million long-term FHLB advance in February 2021, which resulted in a prepayment penalty of $14.7 million. ​ ​

SUMMARY OF SIGNIFICANT ACCOUN_2

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	12 Months Ended
	Dec. 31, 2020
The Company	The Company Effective May 17, 2019, Union Bankshares Corporation changed its name to Atlantic Union Bankshares Corporation and Union Bank & Trust changed its name to Atlantic Union Bank.
Impact of COVID-19	Impact of COVID-19 - On March 13, 2020, the United States President declared a national emergency in the face of a growing public health and economic crisis due to the COVID-19 global pandemic. Within a few days of the declaration of a national emergency, governors of states comprising the Company’s geographic footprint issued states of emergency in response to the novel COVID-19. As a result of this pandemic, actions were taken around the world to help mitigate the spread of COVID 19, which have impacted the economies and financial markets of many countries, including the geographical area in which the Company operates. On March 27, 2020, the CARES Act was signed into law. The CARES Act is designated to provide financial relief to the American people and American businesses in response to the economic fallout from COVID-19. On March 22, 2020, the five federal bank regulatory agencies and the Conference of State Bank Supervisors issued joint guidance (subsequently revised on April 7, 2020) with respect to loan modifications for borrowers affected by COVID-19. The CARES Act, as well as the March 22 Joint Guidance, provide enhanced guidelines and accounting for COVID-19 related modifications. The federal banking regulators have confirmed with FASB that short-term loan modifications made on a good faith basis in response to COVID-19 to borrowers who were current (i.e., less than 30 days past due on contractual payments) prior to any loan modification are not considered TDRs. In addition, Section 4013 of the CARES Act, as amended by the CAA, provides banks, savings associations, and credit unions with the ability to make loan modifications related to COVID-19 without categorizing the loan as a TDR or conducting the analysis to make the determination, which is intended to streamline the loan modification process. Any such suspension is effective for the term of the loan modification; however, the suspension is only permitted for loan modifications made during the effective period of Section 4013 and only for those loans that were not more than thirty days past due as of December 31, 2019. The relief afforded by Section 4013 of the CARES Act, as amended by the CAA, is available to loans modified between March 1, 2020 and the earlier of 60 days after the date of termination of the COVID-19 national emergency and January 1, 2022. During 2020, the Company participated in the SBA PPP under the CARES Act, which was intended to provide economic relief to small businesses that have been adversely impacted by the COVID-19 global pandemic. The Company processed over 11,000 PPP loans pursuant to the CARES Act, which totaled $1.7 billion with a recorded investment of $1.2 billion and unamortized deferred fees of $17.6 million as of December 31, 2020. The loans carry a 1% interest rate. In addition to an insignificant amount of PPP loan pay offs, the Company began processing PPP loans for forgiveness during the fourth quarter of 2020. In the aggregate, the Company processed forgiveness for approximately 3,100 PPP loans for an aggregate forgiven principal amount of approximately $429.3 million Certain provisions of the CARES Act, including additional PPP funding, were extended as a result of the CAA, which was signed into law on December 27, 2020. The Company began accepting applications on January 19, 2021 for additional PPP loans pursuant to the CAA.
Principles of Consolidation	Principles of Consolidation - The accounting policies and practices of Atlantic Union Bankshares Corporation and subsidiaries conform to GAAP and follow general practices within the banking industry. The consolidated financial statements include the accounts of the Company, which is a financial holding company and a bank holding company that owns all of the outstanding common stock of its banking subsidiary, Atlantic Union Bank, which owns Union Insurance Group, LLC, Old Dominion Capital Management, Inc., Dixon, Hubard, Feinour & Brown, Inc., and Atlantic Union Equipment Finance, Inc. Atlantic Union Bank and subsidiary trusts were formed for the purpose of issuing redeemable trust preferred capital notes in connection with two of the Company’s acquisitions prior to 2006. The Company’s subsidiary trusts were formed for the purpose of issuing redeemable trust preferred capital notes, including in connection with prior acquisitions by the Company. ASC 860, Transfers and Servicing
Use of Estimates	Use of Estimates
Variable Interest Entities	Variable Interest Entities
Business Combinations and Divestitures	Business Combinations and Divestitures - Merger-related costs are costs the Company incurs to effect a business combination. Those costs include advisory, legal, accounting, valuation, and other professional or consulting fees. Some other examples of costs to the Company include systems conversions, integration planning consultants, contract terminations, and advertising costs. The Company will account for merger-related costs as expenses in the periods in which the costs are incurred and the services are received. There is one exception to the aforementioned policy, which includes the costs to issue debt or equity securities, which will be recognized in accordance with other applicable accounting guidance. These merger-related costs are included on the Company’s Consolidated Statements of Income classified within the noninterest expense caption.
Cash and Cash Equivalents	Cash and Cash Equivalents - Restricted cash is disclosed in Note 10 “Commitments and Contingencies” and is comprised of cash maintained at various correspondent banks as collateral for the Company’s derivative portfolio and is included in interest-bearing deposits in other banks on the Company’s Consolidated Balance Sheets. In addition, the Company is required to maintain reserve balances with the FRB based on the type and amount of deposits; however, on March 15, 2020 the FRB announced that reserve requirement ratios would be reduced to zero percent effective March 26, 2020 due to economic conditions, which eliminated the reserve requirement for all depository institutions.
Investment Securities	Investment Securities Available for Sale Held to Maturity Equity Investments Restricted Stock, at cost Interest income includes amortization of purchase premium or discount. Premiums and discounts on securities are generally amortized on the level-yield method without anticipating prepayments, except for mortgage-backed securities where prepayments are anticipated. Premiums on callable debt securities are amortized to their earliest call date. Gains and losses on sales are recorded on the trade date and determined using the specific identification method. The Company regularly evaluates all securities whose values have declined below amortized cost to assess whether the decline in fair value is the result of credit impairment. For AFS securities, the Company evaluates the fair value and credit quality of its AFS securities on at least a quarterly basis. In the event the fair value of a security falls below its amortized cost basis, the security will be evaluated to determine whether the decline in value was caused by changes in market interest rates or security credit quality. The primary indicators of credit quality for the Company’s AFS portfolio are security type and credit rating, which are influenced by a number of security-specific factors that may include obligor cash flow, geography, seniority, structure, credit enhancement and other factors. There is currently no ACL held against the Company’s AFS securities portfolio at December 31, 2020. See Note 3 “Securities,” for additional information on the Company’s ACL analysis. If unrealized losses are related to credit quality, the Company estimates the credit related loss by evaluating the present value of cash flows expected to be collected from the security with the amortized cost basis of the security. If the present value of cash flows expected to be collected is less than the amortized cost basis of the security and a credit loss exists, an ACL shall be recorded for the credit loss, limited by the amount that the fair value is less than amortized cost basis. Non-credit related declines in fair value are recognized in other comprehensive income, net of applicable taxes. Changes in the ACL are recorded as a provision for or reversal of credit loss expense. Charge-offs are recorded against the ACL when management believes the AFS security is no longer collectible. A debt security is placed on nonaccrual status at the time any principal or interest payments become 90 days delinquent. The Company evaluates the credit risk of its HTM securities on at least a quarterly basis. Management estimates expected credit losses on held-to-maturity debt securities based on an individual basis based on the PD/LGD methodology primarily using security-level credit ratings. Management recorded an immaterial ACL on HTM securities as a result of the adoption of ASC 326, and no additional changes were needed at year ended December 31, 2020. Investment securities – prior to the adoption of ASC 326
Loans Held for Sale	Loans Held for Sale
Loans Held for Investment	Loans Held for Investment Loans that management has the intent and ability to hold for the foreseeable future or until maturity or pay-off generally are reported at their outstanding unpaid principal balances adjusted for any charge-offs, the ALLL, and any deferred fees and costs on originated loans. Interest income is accrued on the unpaid principal balance. Loan origination fees, net of certain direct origination costs, are deferred and recognized as an adjustment of the related loan yield using the interest method. Below is a summary of the current loan portfolios: Construction and Land Development Also, included in this category are loans generally made to residential home builders to support their lot and home construction inventory needs. Repayment relies upon the sale of the underlying residential real estate project. This type of lending carries a higher level of risk as compared to other commercial lending. This class of lending manages risks related to residential real estate market conditions, a functioning primary and secondary market in which to finance the sale of residential properties, and the borrower’s ability to manage inventory and run projects. The Company manages this risk by lending to experienced builders and developers by using specific underwriting policies and procedures for these types of loans and by avoiding excessive concentrations with any particular customer or geographic region. Commercial Real Estate – Owner Occupied Commercial Real Estate – Non-Owner Occupied Multifamily Real Estate Commercial & Industrial Residential 1-4 Family - Commercial Residential 1-4 Family - Consumer Residential 1-4 Family - Revolving Auto Consumer Other Commercial Nonaccruals, Past Dues, and Charge-offs The policy for placing commercial loans on nonaccrual status is generally when the loan is 90 days delinquent unless the credit is well secured and in process of collection. Consumer loans are typically charged-off when management judges the loan to be uncollectible but generally no later than 120 days past due for non-real estate secured loans and 180 days for real estate secured loans. Non-real estate secured consumer loans are generally not placed on nonaccrual status prior to charge off. Commercial loans are typically written down to net realizable value when it is determined that the Company will be unable to collect the principal amount in full and the amount is a confirmed loss. Loans in all classes of portfolios are considered past due or delinquent when a contractual payment has not been satisfied. Loans are placed on nonaccrual status or charged off at an earlier date if collection of principal and interest is considered doubtful and in accordance with regulatory requirements. In response to the COVID-19 pandemic, the Company offered short-term loan modifications to assist borrowers. The Company enhanced the monitoring over loans that received modifications, specifically full principal and interest payment deferrals, and considered nonaccrual treatment at which time the Company no longer expected to collect all principal and interest over the life of the loan. The process for charge-offs is discussed in detail within the “Allowance for Loan and Lease Losses” section of this Note 1. For both the commercial and consumer loan segments, all interest accrued but not collected for loans placed on nonaccrual status or charged-off is reversed against interest income and accrual of interest income is terminated. Payments and interest on these loans are accounted for using the cost-recovery method by applying all payments received as a reduction to the outstanding principal balance until qualifying for return to accrual. Loans are returned to accrual status when all the principal and interest amounts contractually due are brought current and future payments are reasonably assured. The determination of future payments being reasonably assured varies depending on the circumstances present with the loan; however, the timely payment of contractual amounts owed for six consecutive months is a primary indicator. The authority to move loans into or out of accrual status is limited to senior Special Assets Officers and the Chief Credit Officer, though reclassification of certain loans may require approval of the Special Assets Loan Committee.
Allowance for Loan and Lease Losses	Allowance for Loan and Lease Losses - Management’s determination of the adequacy of the ALLL is based on an evaluation of the composition of the loan portfolio, the value and adequacy of collateral, current economic conditions, historical loan loss experience, reasonable and supportable forecasts, and other risk factors. The ALLL is estimated using a loan-level PD/LGD method for all loans with the exception of its auto and third party consumer lending portfolios. For auto and third party consumer lending portfolios, the Company has elected to pool those loans based on similar risk characteristics to determine the ALLL using vintage and loss rate methods. While management uses available information to estimate expected losses on loans, future changes in the ALLL may be necessary based on changes in portfolio composition, portfolio credit quality, and/or economic conditions. Determining the Contractual Term Expected credit losses are estimated over the contractual term of the loans, adjusted for expected prepayments when appropriate. The contractual term excludes expected extensions, renewals, and modifications unless either of the following applies: management has a reasonable expectation at the reporting date that a troubled debt restructuring will be executed with an individual borrower or the extensions or renewal options are included in the original or modified contract at the reporting date and are not unconditionally legally cancelable by the Company. The Company’s ALLL measures the expected lifetime loss using pooled assumptions and loan-level details for financial assets that share common risk characteristics and evaluates an individual reserve in instances where the financial assets do not share the same risk characteristics. Collectively Assessed Reserve Consideration Loans that share common risk characteristics are considered collectively assessed. Loss estimates within the collectively assessed population are based on a combination of pooled assumptions and loan-level characteristics. Quantitative loss estimation models have been developed based largely on internal historical data at the loan and portfolio levels from 2005 through the current period and the economic conditions during the same time period. Expected losses for the Company’s collectively assessed loan segments are estimated using a number of quantitative methods including PD/LGD, Vintage, and Loss Rate. As part of its qualitative framework, the Company evaluates its current underwriting standards, geographic footprint, national and international current and forecasted economic conditions, expected government stimulus, and other factors to estimate the impact that changes in these factors may have on expected loan losses. The Company’s ALLL for the current period is based on a two-year reasonable and supportable forecast period with a straight-line reversion over the next two years to long-term average loss factors. Individually Assessed Reserve Consideration Loans that do not share risk characteristics are evaluated on an individual basis. The individual reserve component relates to loans that have shown substantial credit deterioration as measured by risk rating and/or delinquency status. In addition, the Company has elected the practical expedient that would include loans for individual assessment consideration if the repayment of the loan is expected substantially through the operation or sale of collateral because the borrower is experiencing financial difficulty. Where the source of repayment is the sale of collateral, the ALLL is based on the fair value of the underlying collateral, less selling costs, compared to the amortized cost basis of the loan. If the ALLL is based on the operation of the collateral, the reserve is calculated based on the fair value of the collateral calculated as the present value of expected cash flows from the operation of the collateral, compared to the amortized cost basis. If the Company determines that the value of a collateral dependent loan is less than the recorded investment in the loan, the Company charges off the deficiency if it is determined that such amount is deemed uncollectible. Typically, a loss is confirmed when the Company is moving toward foreclosure or final disposition. The Company obtains appraisals from a pre-approved list of independent, third party appraisers located in the market in which the collateral is located. The Company’s approved appraiser list is continuously maintained by the Company’s REVG to ensure the list only includes such appraisers that have the experience, reputation, character, and knowledge of the respective real estate market. At a minimum, it is ascertained that the appraiser is currently licensed in the state in which the property is located, experienced in the appraisal of properties similar to the property being appraised, has knowledge of current real estate market conditions and financing trends, and is reputable. The Company’s internal REVG, which reports to the Enterprise Risk Management group, performs either a technical or administrative review of all appraisals obtained in accordance with the Company’s Appraisal Policy. The Appraisal Policy mirrors the Federal regulations governing appraisals, specifically the Interagency Appraisal and Evaluation Guidelines and FIRREA. A technical review will ensure the overall quality of the appraisal, while an administrative review ensures that all of the required components of an appraisal are present. Independent appraisals or valuations are obtained on all individually assessed loans, as well as updated every twelve months for all individually assessed loans. Adjustments to real estate appraised values are only permitted to be made by the REVG. The individually assessed analysis is reviewed and approved by senior Credit Administration officers and the Special Assets Loan Committee. External valuation sources are the primary source to value collateral dependent loans; however, the Company may also utilize values obtained through other valuation sources. These alternative sources of value are used only if deemed to be more representative of value based on updated information regarding collateral resolution. The ALLL on loans individually assessed is updated, reviewed, and approved on a quarterly basis at or near the end of each reporting period. The Company performs regular credit reviews of the loan portfolio to review the credit quality and adherence to its underwriting standards. The credit reviews include annual commercial loan reviews performed by the Company’s commercial bankers in accordance with CLP, relationship reviews that accompany annual loan renewals, and independent reviews by its Loan Review Group. Upon origination, each commercial loan is assigned a risk rating ranging from one to nine, with loans closer to one having less risk. This risk rating scale is the Company’s primary credit quality indicator. Consumer loans are not risk rated unless past due status, bankruptcy, or other event results in the assignment of a Substandard or worse risk rating in accordance with the consumer loan policy. Governance The Company’s Allowance Committee, which reports to the Audit Committee and contains representatives from both the Company’s finance and risk teams, is responsible for approving the Company’s estimate of expected credit losses and resulting ALLL. The Allowance Committee considers the quantitative model results and qualitative factors when approving the final ALLL. The Company’s ALLL model is subject to the Company’s models risk management program which is overseen by the Model Risk Management Committee which reports to the Company’s Board Risk Committee.
Acquired Loans	Acquired Loans – The Company has purchased loans, some of which have experienced more than insignificant credit deterioration since origination. Acquired loans are recorded at their fair value at acquisition date without carryover of the acquiree’s previously established ALLL, as credit discounts are included in the determination of fair value. The fair value of the loans is determined using market participant assumptions in estimating the amount and timing of both principal and interest cash flows expected to be collected on the loans and then applying a market-based discount rate to those cash flows. During evaluation upon acquisition, acquired loans are also classified as either or PCD or acquired performing. The acquired loans are subject to the Company’s ALLL Policy upon acquisition. Acquired performing loans are accounted for under ASC 310-20, Receivables – Nonrefundable Fees and Other Costs PCD loans reflect loans that have experienced more-than-insignificant credit deterioration since origination, as it is probable at acquisition that the Company will not be able to collect all contractually required payments. These PCD loans are accounted for under ASC 326 . The PCD loans are segregated into pools based on loan type and credit risk. Loan type is determined based on collateral type, purpose, and lien position. Credit risk characteristics include risk rating groups, nonaccrual status, and past due status. For valuation purposes, these pools are further disaggregated by maturity, pricing characteristics, and re-payment structure. ​
Troubled Debt Restructurings	​ Troubled Debt Restructurings - The Company reviews previously restructured loans quarterly in order to determine whether any have performed, subsequent to the restructure, at a level that would allow for them to be removed from reportable TDR status. The Company generally would consider a change in this classification if the borrower is no longer experiencing financial difficulty, the loan is current or less than 30 days past due at the time the status change is being considered, and the loan has performed under the restructured terms for a consecutive twelve-month period. A loan may also be considered for removal from TDR status as a result of a subsequent restructure under certain restrictive circumstances. The removal of TDR designations must be approved by the Company's Special Asset Loan Committee. Loan modifications made under the March 22 Joint Guidance and CARES Act, as amended by the CAA, were suspended from TDR evaluation.
Allowance for Credit Losses	Allowance for loan and lease losses – prior to the adoption of ASC 326 A loan was considered impaired when, based on current information and events, it was probable that the Company will be unable to collect the scheduled payments of principal or interest when due according to the contractual terms of the loan agreement. Factors considered in determining impairment include payment status, collateral value, and the probability of collecting scheduled principal and interest payments when due. Loans that experienced insignificant payment delays and payment shortfalls generally were not classified as impaired. Management determined the significance of payment delays and payment shortfalls on a case-by-case basis, taking into consideration all of the circumstances surrounding the loan and the borrower, including the length of the delay, the reasons for the delay, the borrower’s prior payment record, and the amount of the shortfall in relation to the principal and interest owed. Impairment was measured on a loan-by-loan basis by either the present value of expected future cash flows discounted at the loan’s effective interest rate, the loan’s obtainable market price, or the fair value of the collateral. The impairment loan policy was the same for all segments within the commercial loan segment. For the consumer loan segment, large groups of smaller balance homogeneous loans were collectively evaluated for impairment. This evaluation subjected each of the Company’s homogenous pools to a historical loss factor derived from net charge-offs experienced over the preceding 24 quarters. The Company applied payments received on impaired loans to principal and interest based on the contractual terms until they were placed on nonaccrual status. All payments received were then applied to reduce the principal balance and recognition of interest income is terminated as previously discussed. The Company’s ALL consisted of specific, general, and qualitative components. The specific reserve component related to impaired loans. Upon being identified as impaired, for loans not considered to be collateral-dependent, an ALL was established when the discounted cash flows of the impaired loan was lower than the carrying value of that loan. The impairment of significant collateral-dependent loans was measured based on the fair value of the underlying collateral, less selling costs, compared to the carrying value of the loan. If the Company determined that the value of an impaired collateral dependent loan was less than the recorded investment in the loan, the Company charged off the deficiency if it was determined that such amount represented a confirmed loss. Typically, a loss was confirmed when the Company was moving towards foreclosure or final disposition. The general reserve component covered non-impaired loans and was quantitatively derived from an estimate of credit losses adjusted for various qualitative factors applicable to both commercial and consumer loan segments. The estimate of credit losses was a function of the net charge-off historical loss experience to the average loan balance of the portfolio averaged during a period that management had determined to adequately reflect the losses inherent in the loan portfolio. The Company had implemented a rolling 24-quarter look back period, which was re-evaluated on a periodic basis to ensure the reasonableness of the period being used. The qualitative component included adjustments for current portfolio specific credit risks and local and national economic trends. Acquired loans were recorded at their fair value at acquisition date without carryover of the acquiree’s previously established ALL, as credit discounts were included in the determination of fair value. The fair value of the loans were determined using market participant assumptions in estimating the amount and timing of both principal and interest cash flows expected to be collected on the loans and then applying a market-based discount rate to those cash flows. During evaluation upon acquisition, acquired loans were also classified as either acquired impaired (or PCI) or acquired performing. Acquired performing loans were accounted for under ASC 310-20, Receivables – Nonrefundable Fees and Other Costs. The difference between the fair value and unpaid principal balance of the loan at acquisition date (premium or discount) was amortized or accreted into interest income over the life of the loans. If the acquired performing loan has revolving privileges, it was accounted for using the straight-line method; otherwise, the effective interest method is used. Acquired impaired loans reflected credit quality deterioration since origination, as it was probable at acquisition that the Company would not be able to collect all contractually required payments. These PCI loans were accounted for under ASC 310-30, Receivables – Loans and Debt Securities Acquired with Deteriorated Credit Quality. The PCI loans were segregated into pools based on loan type and credit risk. Loan type was determined based on collateral type, purpose, and lien position. Credit risk characteristics included risk rating groups, nonaccrual status, and past due status. For valuation purposes, these pools were further disaggregated by maturity, pricing characteristics, and re-payment structure. PCI loans were written down at acquisition to fair value using an estimate of cash flows deemed to be collectible. Accordingly, such loans were no longer classified as nonaccrual even though they may be contractually past due because the Company expected to fully collect the new carrying values of such loans, which is the new cost basis arising from purchase accounting. Quarterly, management performed a recast of PCI loans based on updated future expected cash flows, which was updated through reassessment of default rates, loss severity, and prepayment speed assumptions. The excess of the cash flows expected to be collected over a pool’s carrying value was considered to be the accretable yield and was recognized as interest income over the estimated life of the loan or pool using the effective yield method. The excess of the undiscounted contractual balances due over the cash flows expected to be collected was considered to be the nonaccretable difference, which represented the estimate of credit losses expected to occur and was considered in determining the fair value of loan at the acquisition date. Any subsequent increases in expected cash flows over those expected at the acquisition date in excess of fair value were adjusted through an increase in the accretable yield on a prospective basis; any decreases in expected cash flows attributable to credit deterioration are recognized by recording a provision for loan losses. The PCI loans were subject to the Company’s internal and external credit review and monitoring. If further credit deterioration was experienced, such deterioration was measured and the provision for loan losses was increased. A loan was removed from the pool (at its carrying value) if the loan was sold, foreclosed, or assets were received in full satisfaction of the loan.
Accrued Interest Receivable	Accrued Interest Receivable - The Company has elected to exclude accrued interest from the amortized cost basis in its determination of the ALLL, as well as the ACL reserve for securities. Accrued interest receivable totaled $56.7 million on loans held for investment, $6.8 million on HTM securities, and $11.9 million on AFS securities at December 31, 2020 and is included in “Other Assets” on the Company’s Consolidated Balance Sheets. The Company’s policy is to write off accrued interest receivable through reversal of interest income when it becomes probable the Company will not be able to collect the accrued interest. For the year ended December 31, 2020, accrued interest receivable write offs were not material to the Company’s consolidated financial statements.
Premises and Equipment	Premises and Equipment -
Goodwill and Intangible Assets	Goodwill and Intangible Assets - Goodwill and Other Intangible Assets, Intangible assets with definite useful lives are amortized over their estimated useful lives, which range from 4 to 10 years, to their estimated residual values. Long-lived assets, including purchased intangible assets subject to amortization, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of an asset to estimated undiscounted future cash flows expected to be generated by the asset. If the carrying amount of an asset exceeds its estimated future cash flows, an impairment charge is recognized in the amount by which the carrying amount of the asset exceeds the fair value of the asset. Assets to be disposed of would be separately presented on the Company’s Consolidated Balance Sheets and reported at the lower of the carrying amount or fair value less costs to sell, would no longer depreciated. Management concluded that no circumstances indicating an impairment of these assets existed as of the balance sheet date. The Company performs the analysis annually on April 30 of each year at the reporting unit level whereby the Company compares the estimated fair value of the reporting unit to its carrying value. If the estimated fair value of a reporting unit exceeds its carrying value, goodwill is not considered impaired. The Company engaged a third-party valuation specialist to assist management in performing its annual goodwill impairment analysis. The last goodwill impairment analysis was conducted on April 30, 2020. To determine the fair value of a reporting unit, the Company utilizes a combination of two separate quantitative methods, the market value approach, which considers comparable publicly-traded companies, and the income approach which estimates future cash flows. Critical assumptions that are used as part of these calculations include: the selection of comparable publicly-traded companies and selection of market comparable acquisition transactions. In addition, other key assumptions include the discount rate, the forecast of future earnings and cash flows of the reporting unit, economic conditions, which impact the assumptions related to interest and growth rates, and loss rates, the cost savings expected to be realized by a market participant, the control premium associated with the reporting unit and a relative weight given to the valuations derived by the two valuation methods. At April 30, 2020, the Company determined that there was no impairment to its goodwill. The Company performed a sensitivity analysis on key assumptions and noted the 2020 forecast was significantly impacted by the uncertain factors associated with COVID-19, as well as macro-economic factors such as the interest rate forecasts and unemployment factors. Management also performed an additional qualitative review through December 31, 2020, and concluded that no impairment existed as of the balance sheet date.
Foreclosed Properties	Foreclosed Properties
Transfers of Financial Assets	Transfers of Financial Assets
Bank Owned Life Insurance	Bank Owned Life Insurance
Derivatives	Derivatives accruals on derivatives related to hedges are recorded as adjustments to the interest income or interest expense associated with the hedged item. During the life of the hedge, the Company formally assesses whether derivatives designated as hedging instruments continue to be highly effective in offsetting changes in the fair value or cash flows of hedged items. If it is determined that a hedge has ceased to be highly effective, the Company will discontinue hedge accounting prospectively. At such time, previous adjustments to the carrying value of the hedged item are reversed into current earnings and the derivative instrument is reclassified to a trading position recorded at fair value. During the normal course of business, the Company enters into commitments to originate mortgage loans whereby the interest rate on the loan is determined prior to funding (“rate lock commitments”). For commitments issued in connection with potential loans intended for sale, the Bank enters into positions of forward month mortgage-backed securities to be announced (“TBA”) contracts on a mandatory basis or on a one-to-one forward sales contract on a best efforts basis. The Company enters into TBA contracts in order to control interest rate risk during the period between the rate lock commitment and mandatory sale of the mortgage loan. Both the rate lock commitment and the forward TBA contract is considered a derivative. A mortgage loan sold on a best efforts basis is locked into a forward sales contract with a counterparty on the same day as the rate lock commitment to control interest rate risk during the period between the commitment and the sale of the mortgage loan. Both the rate lock commitment and the forward sales contract are considered a derivative. As of December 31, 2018, there were no mortgage banking derivatives due to the wind down of UMG. Mortgage banking derivatives as of December 31, 2020 and 2019 did not have a material impact on the Company’s Consolidated Financial Statements. The market values of rate lock commitments and best efforts forward delivery commitments is not readily ascertainable with precision because rate lock commitments and best efforts contracts are not actively traded in stand-alone markets. The Company determines the fair value of rate lock commitments, delivery contracts, and forward sales contracts of MBS by measuring the change in the value of the underlying asset, while taking into consideration the probability that the rate lock commitments will close or will be funded. Certain risks arise from the forward delivery contracts in that the counterparties to the contracts may not be able to meet the terms of the contracts. Additional risks inherent in mandatory delivery programs include the risk that, if the Company does not close the loans subject to rate lock commitments, it will still be obligated to deliver MBS to the counterparty under the forward sales agreement.
Affordable Housing Entities	Affordable Housing Entities - The Company invests in private investment funds that make equity investments in multifamily affordable housing properties that provide affordable housing and historic tax credits for these investments. The activities of these entities are financed with a combination of invested equity capital and debt. The Company accounts for its affordable housing entities using the proportional amortization method. Under the proportional amortization method, the Company amortizes the initial cost of the investment in proportion to the tax credits and other tax benefits received, and recognizes the net investment performance in the income statement as a component of income tax expense (benefit). For the years ended December 31, 2020 and 2019, the Company recognized amortization of $3.0 million and $1.9 million, respectively, and tax credits and tax savings of $3.6 million and $2.9 million, respectively, associated with these investments within “Income tax expense” on the Company’s Consolidated Statements of Income. The carrying value of the Company’s investments in these qualified affordable housing projects were $38.5 million and $29.6 million for the years ended December 31, 2020 and 2019, respectively. At December 31, 2020 and 2019, the Company’s recorded liability totaled $19.1 million and $12.0 million, respectively, for the related unfunded commitments, which are expected to be paid throughout the years 2021 - 2033.
Stock Compensation Plan	Stock Compensation Plan The Company did not issue stock options in 2020, 2019 or 2018; however, the Company assumed additional stock options with the acquisition of Access. For the options assumed, the fair value of the stock options is estimated based on the date of acquisition, using the Black-Scholes option valuation. The converted option price of the Company’s common stock at acquisition was used for determining the associated compensation expense for nonvested stock awards. The valuation was used in 2020, 2019, and 2018 to determine the valuation of the stock options. The valuation employs the following assumptions: • • • • ​ The fair value of PSUs granted in the years ended December 31, 2020, 2019, 2018 are determined and fixed on the grant date based on the Company’s stock price, adjusted for the exclusion of dividend equivalents. The Monte Carlo simulation valuation was used to determine the grant date fair value of PSUs granted for the years ended December 31, 2020, 2019 and 2018. The fair value of RSAs and stock awards are based on the trading price of the Company’s stock on the date of the grant. ASC 718 requires the Company to estimate forfeitures when recognizing compensation expense and that this estimate of forfeitures be adjusted over the requisite service period or vesting schedule based on the extent to which actual forfeitures differ from such estimates. Changes in estimated forfeitures are recognized through a cumulative catch-up adjustment, which is recognized in the period of change, and also will affect the amount of estimated unamortized compensation expense to be recognized in future periods. For more information and tables refer to Note 16 “Employee Benefits and Stock Based Compensation.”
Income Taxes	Income Taxes When tax returns are filed, it is highly certain that some positions taken would be sustained upon examination by the taxing authorities, while others are subject to uncertainty about the merits of the position taken or the amount of the position that would be ultimately sustained. The benefit of a tax position is recognized in the financial statements in the period during which, based on all available evidence, management believes it is more likely than not that the position will be sustained upon examination, including the resolution of appeals or litigation processes, if any. Tax positions taken are not offset or aggregated with other positions. Tax positions that meet the more-likely-than-not recognition threshold are measured as the largest amount of tax benefit that is more than 50% likely to be realized upon settlement with the applicable taxing authority. The portion of the benefits associated with tax positions taken that exceeds the amount measured as described above is reflected as a liability for unrecognized tax benefits on the Company’s Consolidated Balance Sheets along with any associated interest and penalties that would be payable to the taxing authorities upon examination. Interest and penalties associated with unrecognized tax benefits are classified as additional income taxes on the Company’s Consolidated Statements of Income. The Company did not record any material interest or penalties for the periods ending December 31, 2020, 2019, or 2018 related to tax positions taken. As of December 31, 2020 and 2019, there were no accruals for uncertain tax positions. The Company and its wholly-owned subsidiaries file a consolidated income tax return. Each entity provides for income taxes based on its contribution to income or loss of the consolidated group.
Advertising Costs	Advertising Costs -
Earnings Per Common Share	Earnings Per Common Share
Comprehensive Income	Comprehensive Income
Off Balance Sheet Credit Related Financial Instruments	Off Balance Sheet Credit Related Financial Instruments
Fair Value	Fair Value ASC 820 specifies a hierarchy of valuation techniques based on whether the inputs to those valuation techniques are observable or unobservable. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect the Company’s market assumptions. The three levels of the fair value hierarchy under ASC 820 based on these two types of inputs are as follows: Level 1 valuation is based on quoted prices in active markets for identical assets and liabilities; Level 2 valuation is based on observable inputs including quoted prices in active markets for similar assets and liabilities, quoted prices for identical or similar assets and liabilities in less active markets, and model-based valuation techniques for which significant assumptions can be derived primarily from or corroborated by observable data in the markets; and Level 3 valuation is based on model-based techniques that use one or more significant inputs or assumptions that are unobservable in the market. These unobservable inputs reflect the Company’s assumptions about what market participants would use and information that is reasonably available under the circumstances without undue cost and effort. For more specific information on the valuation techniques used by the Company to measure certain financial assets and liabilities recorded at fair value in the financial statements refer to Note 14 “Fair Value Measurements.”
Concentrations of Credit Risk	Concentrations of Credit Risk
Reclassifications	Reclassifications – The accompanying consolidated financial statements and notes reflect certain reclassifications in prior periods to conform to the current presentation. Specifically, the Company reclassified Printing, Postage and Supplies and Training and Other Personnel costs from being separately presented to being contained within Other Expenses on the Consolidated Statements of Income. The Company updated the AFS and HTM investment category disclosures to align with Regulatory Reporting requirements. In addition, the Company reclassified the Loans Held for Sale activity previously presented as net on the Consolidated Statements of Cash Flow to origination and Purchases, Proceeds from Sales, Other Assets, and Oother Liabilities.
Adoption of New Accounting Standards	Adoption of New Accounting Standards - The adoption of this standard required lessees to recognize right of use assets and lease liabilities on the Consolidated Balance Sheets and disclose key information about leasing arrangements. The Company adopted this ASU on January 1, 2019 under the modified retrospective approach. The Company elected the package of practical expedients permitted under the transition guidance within the new standard, which allowed the Company to not reassess the lease classification of existing leases, as well as not reassess whether any expired or existing contracts are or contain a lease; and maintain consistent treatment of initial direct costs on existing leases. In addition, the Company elected the short-term lease exemption practical expedient in which leases with an initial term of twelve months or less are not recorded on the Consolidated Balance Sheets. The Company also elected the practical expedient related to accounting for lease and non-lease components as a single lease component. Adoption of this standard resulted in the Company recording a lease liability of $53.2 million and right of use assets of $48.9 million as of January 1, 2019. Operating leases have been included within other assets and other liabilities on the Company’s Consolidated Balance Sheets. The implementation of this standard resulted in a $1.1 million decrease to retained earnings. There was no impact on the Company’s Consolidated Statements of Cash Flows. Refer to Note 7 "Leases" for further discussion regarding the adoption. On January 1, 2020, the Company adopted ASC 326. This ASU updates the existing guidance 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. This ASU replaces the incurred loss impairment methodology in current GAAP with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. The measurement of expected credit losses under the CECL methodology is applicable to financial assets measured at amortized cost, including loan receivables and held-to- maturity debt securities. It also applies to unfunded credit exposures not accounted for as insurance (loan commitments, letters of credit, financial guarantees, and other similar instruments). The Company established a cross-functional governance structure to oversee the Company’s implementation of the CECL methodology, which included evaluating key assumptions used and assessing the internal controls over financial reporting related to the adoption of ASC 326. The Company adopted ASC 326 using the modified retrospective method for all financial assets measured at amortized cost and unfunded credit exposures. Results for reporting periods beginning after January 1, 2020 are presented under ASC 326, while prior period amounts continue to be reported in accordance with previously applicable GAAP. As a result of adopting ASC 326, the Company recorded a net decrease to retained earnings of $39.1 million. ASC 326 also replaced the Company’s current accounting for PCI loans. With the adoption of ASC 326, previously classified PCI loans are now classified as PCD loans. In accordance with ASC 326, the Company did not re-assess whether individual modifications were needed to individual acquired financial assets accounted for in the pools with troubled debt restructurings as of the date of adoption. The Company adopted ASC 326 using the prospective transition approach for financial assets with PCD that were previously identified as PCI and accounted for under ASC 310-30. On January 1, 2020, the amortized cost basis of the PCD assets were adjusted to reflect the addition of $2.4 million to the ALLL. The remaining noncredit discount (based on the adjusted amortized cost basis) will be accreted into interest income at the effective interest rate as of January 1, The Company adopted ASC 326 using the prospective transition approach for debt securities. The effective interest rate on these debt securities was not changed. Upon adoption of ASC 326, the Company did not have any securities included in its portfolio where OTTI had previously been The following table illustrates the impact of ASC ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ January 1, ​ January 1, ​ ​ 2019 ​ 2020 ​ 2020 ​ ​ As Previously Reported (Incurred Loss) ​ Impact of CECL Adoption ​ As Reported Under CECL Assets: ​ ​ ​ ​ ​ ​ Loans ​ ​ ​ ​ ​ ​ Commercial $ 30,941 $ 6,184 $ 37,125 Consumer ​ 11,353 ​ 41,300 ​ 52,653 Allowance for loan and lease losses ​ 42,294 ​ 47,484 ​ 89,778 Liabilities: ​ ​ ​ ​ ​ ​ Allowance for credit losses on unfunded credit exposure ​ 900 ​ 4,160 ​ 5,060 Total Allowance for credit losses $ 43,194 $ 51,644 $ 94,838
Unfunded Commitments
Allowance for Credit Losses	Reserve for Unfunded Commitments -

ACCOUNTING POLICIES (Tables)

ACCOUNTING POLICIES (Tables)	12 Months Ended
	Dec. 31, 2020
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Abstract]
Illustration of the Impact of ASC 326	The following table illustrates the impact of ASC ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ January 1, ​ January 1, ​ ​ 2019 ​ 2020 ​ 2020 ​ ​ As Previously Reported (Incurred Loss) ​ Impact of CECL Adoption ​ As Reported Under CECL Assets: ​ ​ ​ ​ ​ ​ Loans ​ ​ ​ ​ ​ ​ Commercial $ 30,941 $ 6,184 $ 37,125 Consumer ​ 11,353 ​ 41,300 ​ 52,653 Allowance for loan and lease losses ​ 42,294 ​ 47,484 ​ 89,778 Liabilities: ​ ​ ​ ​ ​ ​ Allowance for credit losses on unfunded credit exposure ​ 900 ​ 4,160 ​ 5,060 Total Allowance for credit losses $ 43,194 $ 51,644 $ 94,838

SECURITIES (Tables)

SECURITIES (Tables)	12 Months Ended
	Dec. 31, 2020
Amortized Cost of HTM Securities by Security Type and Credit Rating	The following table presents the amortized cost of HTM securities as of December 31, 2020 by security type and credit rating (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ U.S. Government and Agency Obligations of states and political Mortgage-backed Total HTM ​ ​ securities ​ subdivisions ​ securities ​ securities Credit Rating: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ AAA/AA/A ​ $ — ​ $ 532,157 ​ $ — ​ $ 532,157 Not Rated - Agency (1) ​ ​ 2,751 ​ ​ — ​ ​ 5,333 ​ ​ 8,084 Not Rated - Non-Agency ​ ​ — ​ 4,610 ​ ​ — ​ ​ 4,610 Total ​ $ 2,751 ​ $ 536,767 ​ $ 5,333 ​ $ 544,851 (1) Generally considered not to have credit risk given the government guarantees associated with these agencies
Gross Realized Gain and Losses on the Sale of Securities	The following table presents the gross realized gains and losses on and the proceeds from the sale of securities during the years ended December 31, 2020, 2019, and 2018 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020 2019 2018 Realized gains (losses): ​ ​ ​ ​ ​ ​ ​ ​ ​ Gross realized gains $ 12,522 $ 9,530 $ 4,221 Gross realized losses ​ (228) ​ (1,855) ​ (3,838) Net realized gains $ 12,294 $ 7,675 $ 383 Proceeds from sales of securities $ 257,945 $ 514,070 $ 515,764
Available-for-sale Securities
Amortized Cost, Gross Unrealized Gains and Losses, and Estimated Fair Values of Investment Securities	The amortized cost, gross unrealized gains and losses, and estimated fair values of AFS securities as of December 31, 2020 are summarized as follows (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Amortized ​ Gross Unrealized ​ Estimated ​ Cost Gains (Losses) Fair Value December 31, 2020 ​ ​ ​ ​ ​ U.S. government and agency securities ​ $ 13,009 ​ $ 437 ​ $ (52) ​ $ 13,394 Obligations of states and political subdivisions ​ 786,466 ​ 50,878 ​ (18) ​ 837,326 Corporate and other bonds (1) ​ 148,747 ​ 2,430 ​ (99) ​ 151,078 Commercial mortgage-backed securities ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Agency ​ ​ 321,015 ​ 16,277 ​ (2) ​ ​ 337,290 Non-agency ​ ​ 51,244 ​ 167 ​ (17) ​ ​ 51,394 Total commercial mortgage-backed securities ​ ​ 372,259 ​ 16,444 ​ (19) ​ ​ 388,684 Residential mortgage-backed securities ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Agency ​ ​ 1,012,237 ​ 31,816 ​ (1,946) ​ ​ 1,042,107 Non-agency ​ ​ 104,904 ​ 1,507 ​ (206) ​ ​ 106,205 Total residential mortgage-backed securities ​ ​ 1,117,141 ​ 33,323 ​ (2,152) ​ ​ 1,148,312 Other securities ​ 1,625 ​ — ​ — ​ 1,625 Total AFS securities ​ $ 2,439,247 ​ $ 103,512 ​ $ (2,340) ​ $ 2,540,419 (1) Other bonds includes asset-backed securities. ​ The amortized cost, gross unrealized gains and losses, and estimated fair values of AFS securities as of December 31, 2019 are summarized as follows (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Amortized ​ Gross Unrealized ​ Estimated ​ Cost Gains (Losses) Fair Value December 31, 2019 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ U.S. government and agency securities ​ $ 21,149 ​ $ 209 ​ $ (38) ​ $ 21,320 Obligations of states and political subdivisions ​ ​ 421,344 ​ ​ 25,776 ​ ​ (29) ​ ​ 447,091 Corporate and other bonds (1) ​ 134,342 ​ 1,991 ​ (374) ​ 135,959 Commercial mortgage-backed securities ​ ​ ​ ​ ​ ​ ​ ​ Agency ​ ​ 405,731 ​ ​ 8,786 ​ ​ (619) ​ ​ 413,898 Non-agency ​ ​ 11,173 ​ ​ — ​ ​ (24) ​ ​ 11,149 Total commercial mortgage-backed securities ​ ​ 416,904 ​ ​ 8,786 ​ ​ (643) ​ ​ 425,047 Residential mortgage-backed securities ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Agency ​ ​ 852,300 ​ ​ 16,680 ​ ​ (816) ​ ​ 868,164 Non-agency ​ ​ 44,309 ​ ​ 476 ​ ​ — ​ ​ 44,785 Total residential mortgage-backed securities ​ ​ 896,609 ​ ​ 17,156 ​ ​ (816) ​ ​ 912,949 Other securities ​ 3,079 ​ — ​ — ​ 3,079 Total AFS securities ​ $ 1,893,427 ​ $ 53,918 ​ $ (1,900) ​ $ 1,945,445 (1) Other bonds includes asset-backed securities.
Schedule of Gross Unrealized Losses and Fair Value of Investments	The following table shows the gross unrealized losses and fair value of the Company’s AFS securities with unrealized losses for which an ACL has not been recorded at December 31, 2020 and that are not deemed to be OTTI as of December 31, 2019. These are aggregated by investment category and length of time that the individual securities have been in a continuous unrealized loss position (dollars in thousands). ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Less than 12 months ​ More than 12 months ​ Total ​ Fair Unrealized Fair Unrealized Fair Unrealized ​ ​ Value ​ Losses ​ Value ​ Losses ​ Value ​ Losses December 31, 2020 ​ ​ ​ ​ ​ ​ U.S. government and agency securities ​ $ — ​ $ — ​ $ 5,456 ​ $ (52) ​ $ 5,456 ​ ​ (52) Obligations of states and political subdivisions ​ ​ 5,091 ​ ​ (18) ​ ​ — ​ ​ — ​ ​ 5,091 ​ $ (18) Corporate and other bonds (1) ​ 17,946 ​ (52) ​ 10,698 ​ (47) ​ 28,644 ​ (99) Commercial mortgage-backed securities ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Agency ​ ​ 5,893 ​ ​ (2) ​ ​ 376 ​ ​ — ​ ​ 6,269 ​ ​ (2) Non-agency ​ ​ 17,654 ​ ​ (17) ​ ​ — ​ ​ — ​ ​ 17,654 ​ ​ (17) Total commercial mortgage-backed securities ​ ​ 23,547 ​ ​ (19) ​ ​ 376 ​ ​ — ​ ​ 23,923 ​ ​ (19) Residential mortgage-backed securities ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Agency ​ ​ 219,388 ​ ​ (1,944) ​ ​ 1,055 ​ ​ (2) ​ ​ 220,443 ​ ​ (1,946) Non-agency ​ ​ 36,942 ​ ​ (206) ​ ​ — ​ ​ — ​ ​ 36,942 ​ ​ (206) Total residential mortgage-backed securities ​ ​ 256,330 ​ ​ (2,150) ​ ​ 1,055 ​ ​ (2) ​ ​ 257,385 ​ ​ (2,152) Total AFS securities ​ $ 302,914 ​ $ (2,239) ​ $ 17,585 ​ $ (101) ​ $ 320,499 ​ $ (2,340) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019 ​ ​ ​ ​ ​ ​ U.S. government and agency securities ​ $ 7,638 ​ $ (38) ​ $ — ​ $ — ​ $ 7,638 ​ $ (38) Obligations of states and political subdivisions ​ ​ 4,526 ​ ​ (29) ​ ​ — ​ ​ — ​ ​ 4,526 ​ ​ (29) Corporate and other bonds (1) ​ 17,323 ​ (83) ​ 19,901 ​ (291) ​ 37,224 ​ (374) Commercial mortgage-backed securities ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Agency ​ ​ 43,552 ​ ​ (530) ​ ​ 14,966 ​ ​ (89) ​ ​ 58,518 ​ ​ (619) Non-agency ​ ​ 11,162 ​ ​ (24) ​ ​ — ​ ​ — ​ ​ 11,162 ​ ​ (24) Total commercial mortgage-backed securities ​ ​ 54,714 ​ ​ (554) ​ ​ 14,966 ​ ​ (89) ​ ​ 69,680 ​ ​ (643) Residential mortgage-backed securities ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Agency ​ ​ 114,147 ​ ​ (500) ​ ​ 40,168 ​ ​ (316) ​ ​ 154,315 ​ ​ (816) Non-agency ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total residential mortgage-backed securities ​ ​ 114,147 ​ ​ (500) ​ ​ 40,168 ​ ​ (316) ​ ​ 154,315 ​ ​ (816) Total AFS securities ​ $ 198,348 ​ $ (1,204) ​ $ 75,035 ​ $ (696) ​ $ 273,383 ​ $ (1,900) ​ (1) Other bonds includes asset-backed securities
Schedule of Amortized Cost and Estimated Fair Value of Securities	The following table presents the amortized cost and estimated fair value of AFS securities as of December 31, 2020 and 2019, by contractual maturity (dollars in thousands). Expected maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020 ​ December 31, 2019 ​ Amortized Estimated Amortized Estimated ​ ​ Cost ​ Fair Value ​ Cost ​ Fair Value Due in one year or less ​ $ 19,875 ​ $ 19,997 ​ $ 35,177 ​ $ 35,329 Due after one year through five years ​ 161,448 ​ 169,103 ​ 164,605 ​ 166,873 Due after five years through ten years ​ 235,021 ​ 242,791 ​ 249,713 ​ 254,790 Due after ten years ​ 2,022,903 ​ 2,108,528 ​ 1,443,932 ​ 1,488,453 Total AFS securities ​ $ 2,439,247 ​ $ 2,540,419 ​ $ 1,893,427 ​ $ 1,945,445
Held-to-maturity Securities
Schedule of Amortized Cost and Estimated Fair Value of Securities	The following table presents the amortized cost and estimated fair value of HTM securities as of December 31, 2020 and 2019, by contractual maturity (dollars in thousands). Expected maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020 ​ December 31, 2019 ​ Carrying Estimated Carrying Estimated ​ ​ Value ​ Fair Value ​ Value ​ Fair Value Due in one year or less ​ $ 1,443 ​ $ 1,460 ​ $ 502 ​ $ 504 Due after one year through five years ​ 8,577 ​ 8,893 ​ 10,258 ​ 10,539 Due after five years through ten years ​ 1,744 ​ 1,805 ​ 1,768 ​ 1,800 Due after ten years ​ 533,087 ​ 607,607 ​ 542,616 ​ 590,660 Total HTM securities ​ $ 544,851 ​ $ 619,765 ​ $ 555,144 ​ $ 603,503
Schedule of Carrying Values, Gross Unrealized Gains and Losses and Estimated Fair Value of Securities	The carrying value, gross unrealized gains and losses, and estimated fair values of HTM securities as of December 31, 2020 are summarized as follows (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Carrying ​ Gross Unrealized ​ Estimated ​ Value Gains (Losses) ​ Fair Value December 31, 2020 ​ ​ ​ ​ ​ U.S. government and agency securities ​ $ 2,751 ​ $ — ​ $ (18) ​ $ 2,733 Obligations of states and political subdivisions ​ ​ 536,767 ​ ​ 74,978 ​ ​ — ​ ​ 611,745 Commercial mortgage-backed securities ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Agency ​ ​ 5,333 ​ ​ 4 ​ ​ (50) ​ ​ 5,287 Non-agency ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total commercial mortgage-backed securities ​ ​ 5,333 ​ ​ 4 ​ ​ (50) ​ ​ 5,287 Total held-to-maturity securities ​ $ 544,851 ​ $ 74,982 ​ $ (68) ​ $ 619,765 ​ ​ The carrying value, gross unrealized gains and losses, and estimated fair values of HTM securities as of December 31, 2019 are summarized as follows (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Carrying ​ Gross Unrealized ​ Estimated ​ Value Gains (Losses) Fair Value December 31, 2019 ​ ​ ​ ​ U.S. government and agency securities ​ $ 2,813 ​ $ 26 ​ $ — ​ $ 2,839 Obligations of states and political subdivisions ​ ​ 545,148 ​ ​ 48,274 ​ ​ — ​ ​ 593,422 Commercial mortgage-backed securities ​ ​ ​ ​ ​ ​ ​ ​ ​ Agency ​ ​ 7,183 ​ ​ 59 ​ ​ — ​ ​ 7,242 Non-agency ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total commercial mortgage-backed securities ​ ​ 7,183 ​ ​ 59 ​ ​ — ​ ​ 7,242 Total held-to-maturity securities ​ $ 555,144 ​ $ 48,359 ​ $ — ​ $ 603,503

LOANS AND ALLOWANCE FOR LOAN _2

LOANS AND ALLOWANCE FOR LOAN LOSSES (Tables)	12 Months Ended
	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Stated at Face Amount, Net of Unearned Income	Loans are stated at their face amount, net of deferred fees and costs, and consist of the following at December 31, 2020 and 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020 2019 Construction and Land Development ​ $ 925,798 ​ $ 1,250,924 Commercial Real Estate - Owner Occupied ​ 2,128,909 ​ 2,041,243 Commercial Real Estate - Non-Owner Occupied ​ 3,657,562 ​ 3,286,098 Multifamily Real Estate ​ 814,745 ​ 633,743 Commercial & Industrial (1) ​ 3,263,460 ​ 2,114,033 Residential 1-4 Family - Commercial ​ 671,949 ​ 724,337 Residential 1-4 Family - Consumer ​ 822,866 ​ 890,503 Residential 1-4 Family - Revolving ​ 596,996 ​ 659,504 Auto ​ 401,324 ​ 350,419 Consumer ​ 247,730 ​ 372,853 Other Commercial (1) ​ 489,975 ​ 287,279 Total loans held for investment, net of deferred fees and costs (2) ​ ​ 14,021,314 ​ ​ 12,610,936 Allowance for loan and lease losses ​ ​ (160,540) ​ ​ (42,294) Total loans held for investment, net ​ $ 13,860,774 ​ $ 12,568,642 (1) Commercial & industrial and other commercial loans include approximately $1.2 billion and $11.3 million, respectively, in loans from the PPP loan program at December 31, 2020. (2) Total loans include unamortized premiums and discounts, and unamortized deferred fees and costs totaling $69.7 million and $69.8 million as of December 31, 2020 and December 31, 2019, respectively.
Summary of Aging of the Loan Portfolio by Class	The following table shows the aging of the Company’s loan portfolio, by class, at December 31, 2020 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Greater than ​ ​ ​ ​ ​ ​ ​ ​ ​ 30-59 Days ​ 60-89 Days ​ 90 Days and ​ ​ ​ ​ ​ ​ ​ ​ Current ​ Past Due ​ Past Due ​ still Accruing ​ Nonaccrual ​ Total Loans Construction and Land Development ​ $ 920,276 ​ $ 1,903 ​ $ 547 ​ $ — ​ $ 3,072 ​ $ 925,798 Commercial Real Estate - Owner Occupied ​ 2,114,804 ​ 1,870 ​ 1,380 ​ 3,727 ​ 7,128 ​ 2,128,909 Commercial Real Estate - Non-Owner Occupied ​ 3,651,232 ​ 2,144 ​ 1,721 ​ 148 ​ 2,317 ​ 3,657,562 Multifamily Real Estate ​ 814,095 ​ 617 ​ — ​ — ​ 33 ​ 814,745 Commercial & Industrial ​ 3,257,201 ​ 1,848 ​ 1,190 ​ 1,114 ​ 2,107 ​ 3,263,460 Residential 1-4 Family - Commercial ​ 657,351 ​ 2,227 ​ 818 ​ 1,560 ​ 9,993 ​ 671,949 Residential 1-4 Family - Consumer ​ 792,852 ​ 10,182 ​ 1,533 ​ 5,699 ​ 12,600 ​ 822,866 Residential 1-4 Family - Revolving ​ 587,522 ​ 2,975 ​ 1,044 ​ 826 ​ 4,629 ​ 596,996 Auto ​ 398,206 ​ 2,076 ​ 376 ​ 166 ​ 500 ​ 401,324 Consumer ​ 245,551 ​ 1,166 ​ 550 ​ 394 ​ 69 ​ 247,730 Other Commercial ​ ​ 489,959 ​ ​ 16 ​ ​ — ​ ​ — ​ ​ — ​ ​ 489,975 Total loans held for investment ​ $ 13,929,049 ​ $ 27,024 ​ $ 9,159 ​ $ 13,634 ​ $ 42,448 ​ $ 14,021,314 The following table shows the aging of the Company’s loan portfolio, by class, at December 31, 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Greater than ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 30-59 Days ​ 60-89 Days ​ 90 Days and ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Past Due ​ Past Due ​ still Accruing ​ PCI ​ Nonaccrual ​ Current ​ Total Loans Construction and Land Development ​ $ 4,563 ​ $ 482 ​ $ 189 ​ $ 10,944 ​ $ 3,703 ​ $ 1,231,043 ​ $ 1,250,924 Commercial Real Estate - Owner Occupied ​ 3,482 ​ 2,184 ​ 1,062 ​ 27,438 ​ 6,003 ​ 2,001,074 ​ 2,041,243 Commercial Real Estate - Non-Owner Occupied ​ 457 ​ — ​ 1,451 ​ 14,565 ​ 381 ​ 3,269,244 ​ 3,286,098 Multifamily Real Estate ​ 223 ​ — ​ 474 ​ 94 ​ — ​ 632,952 ​ 633,743 Commercial & Industrial ​ 8,698 ​ 1,598 ​ 449 ​ 1,579 ​ 1,735 ​ 2,099,974 ​ 2,114,033 Residential 1-4 Family - Commercial ​ 1,479 ​ 2,207 ​ 674 ​ 12,205 ​ 4,301 ​ 703,471 ​ 724,337 Residential 1-4 Family - Consumer ​ 16,244 ​ 3,072 ​ 4,515 ​ 14,713 ​ 9,292 ​ 842,667 ​ 890,503 Residential 1-4 Family - Revolving ​ 10,190 ​ 1,784 ​ 3,357 ​ 4,127 ​ 2,080 ​ 637,966 ​ 659,504 Auto ​ 2,525 ​ 236 ​ 272 ​ 4 ​ 563 ​ 346,819 ​ 350,419 Consumer ​ 2,128 ​ 1,233 ​ 953 ​ 668 ​ 77 ​ 367,794 ​ 372,853 Other Commercial ​ ​ 464 ​ ​ — ​ ​ — ​ ​ 344 ​ ​ 97 ​ ​ 286,374 ​ ​ 287,279 Total loans held for investment ​ $ 50,453 ​ $ 12,796 ​ $ 13,396 ​ $ 86,681 ​ $ 28,232 ​ $ 12,419,378 ​ $ 12,610,936
Summary of Loans on Nonaccrual Status	The following table shows the Company’s amortized cost basis of loans on nonaccrual status as of January 1, 2020 as well as amortized cost basis of loans on nonaccrual status and loans past due 90 days and still accruing as of December 31, 2020 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Nonaccrual ​ ​ ​ ​ ​ ​ ​ ​ January 1, 2020 ​ December 31, 2020 ​ Nonaccrual With No ALLL ​ 90 Days and still Accruing Construction and Land Development ​ $ 4,060 ​ $ 3,072 ​ $ 1,985 ​ $ — Commercial Real Estate - Owner Occupied ​ ​ 13,889 ​ ​ 7,128 ​ ​ 1,994 ​ ​ 3,727 Commercial Real Estate - Non-Owner Occupied ​ ​ 1,368 ​ ​ 2,317 ​ ​ — ​ ​ 148 Multifamily Real Estate ​ ​ — ​ ​ 33 ​ ​ — ​ ​ — Commercial & Industrial ​ ​ 3,037 ​ ​ 2,107 ​ ​ 1 ​ ​ 1,114 Residential 1-4 Family - Commercial ​ ​ 6,492 ​ ​ 9,993 ​ ​ 6,388 ​ ​ 1,560 Residential 1-4 Family - Consumer ​ ​ 13,117 ​ ​ 12,600 ​ ​ 1,069 ​ ​ 5,699 Residential 1-4 Family - Revolving ​ ​ 2,490 ​ ​ 4,629 ​ ​ 60 ​ ​ 826 Auto ​ ​ 565 ​ ​ 500 ​ ​ — ​ ​ 166 Consumer ​ ​ 88 ​ ​ 69 ​ ​ — ​ ​ 394 Other Commercial ​ ​ 98 ​ ​ — ​ ​ — ​ ​ — Total loans held for investment ​ $ 45,204 ​ $ 42,448 ​ $ 11,497 ​ $ 13,634
Impaired Loans by Class	As of December 31, 2019, the Company measured the amount of impairment by evaluating loans either in their collective homogeneous pools or individually. The following table shows the Company’s impaired loans, excluding PCI loans, by class at December 31, 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019 ​ ​ ​ Unpaid ​ ​ ​ ​ Recorded ​ Principal ​ Related ​ ​ Investment ​ Balance ​ Allowance Loans without a specific allowance ​ ​ ​ Construction and Land Development ​ $ 5,877 ​ $ 7,174 ​ $ — Commercial Real Estate - Owner Occupied ​ 8,801 ​ 9,296 ​ — Commercial Real Estate - Non-Owner Occupied ​ 3,510 ​ 4,059 ​ — Commercial & Industrial ​ 3,668 ​ 3,933 ​ — Residential 1-4 Family - Commercial ​ 4,047 ​ 4,310 ​ — Residential 1-4 Family - Consumer ​ 8,420 ​ 9,018 ​ — Residential 1-4 Family - Revolving ​ 862 ​ 865 ​ — Total impaired loans without a specific allowance ​ $ 35,185 ​ $ 38,655 ​ $ — Loans with a specific allowance ​ ​ ​ Construction and Land Development ​ $ 984 ​ $ 1,032 ​ $ 49 Commercial Real Estate - Owner Occupied ​ 2,820 ​ 3,093 ​ 146 Commercial Real Estate - Non-Owner Occupied ​ 335 ​ 383 ​ 2 Commercial & Industrial ​ 2,568 ​ 2,590 ​ 619 Residential 1-4 Family - Commercial ​ 1,726 ​ 1,819 ​ 162 Residential 1-4 Family - Consumer ​ 12,026 ​ 12,670 ​ 1,242 Residential 1-4 Family - Revolving ​ 2,186 ​ 2,369 ​ 510 Auto ​ 563 ​ 879 ​ 221 Consumer ​ 168 ​ 336 ​ 46 Other Commercial ​ ​ 562 ​ ​ 567 ​ ​ 30 Total impaired loans with a specific allowance ​ $ 23,938 ​ $ 25,738 ​ $ 3,027 Total impaired loans ​ $ 59,123 ​ $ 64,393 ​ $ 3,027 ​ ​ The following table shows the average recorded investment and interest income recognized for the Company’s impaired loans, excluding PCI loans, by class for the years ended December 31, 2019 and 2018 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019 ​ December 31, 2018 ​ ​ ​ Interest ​ ​ Interest ​ ​ Average ​ Income ​ Average ​ Income ​ ​ Investment ​ Recognized ​ Investment ​ Recognized Construction and Land Development ​ $ 6,764 ​ $ 110 ​ $ 11,648 ​ $ 234 Commercial Real Estate - Owner Occupied ​ 12,258 ​ 323 ​ 13,383 ​ 499 Commercial Real Estate - Non-Owner Occupied ​ 4,775 ​ 147 ​ 7,157 ​ 246 Commercial & Industrial ​ 6,438 ​ 293 ​ 4,672 ​ 232 Residential 1-4 Family - Commercial ​ 6,145 ​ 120 ​ 5,667 ​ 180 Residential 1-4 Family - Consumer ​ 20,963 ​ 308 ​ 16,977 ​ 236 Residential 1-4 Family - Revolving ​ 3,256 ​ 82 ​ 2,000 ​ 23 Auto ​ 788 ​ 15 ​ 824 ​ 20 Consumer ​ 187 ​ 5 ​ 263 ​ 5 Other Commercial ​ ​ 584 ​ ​ 22 ​ ​ 486 ​ ​ 27 Total impaired loans ​ $ 62,158 ​ $ 1,425 ​ $ 63,077 ​ $ 1,702
Summary of Modified Loans that Continue to Accrue Interest Under the Terms of Restructuring Agreement	The following table provides a summary, by class, of TDRs that continue to accrue interest under the terms of the applicable restructuring agreement, which are considered to be performing, and TDRs that have been placed on nonaccrual status, which are considered to be nonperforming, as of December 31, 2020 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020 ​ No. of Recorded Outstanding ​ ​ Loans ​ Investment ​ Commitment Performing ​ ​ Construction and Land Development 4 ​ $ 215 ​ $ — Commercial Real Estate - Owner Occupied 6 ​ 2,033 ​ 176 Commercial Real Estate - Non-Owner Occupied 1 ​ 1,089 ​ — Commercial & Industrial 4 ​ 727 ​ — Residential 1-4 Family - Commercial 3 ​ 245 ​ — Residential 1-4 Family - Consumer 77 ​ 8,943 ​ — Residential 1-4 Family - Revolving 3 ​ 277 ​ — Consumer 3 ​ 22 ​ — Other Commercial ​ 1 ​ ​ 410 ​ ​ — Total performing 102 ​ $ 13,961 ​ $ 176 Nonperforming ​ ​ Commercial Real Estate - Owner Occupied 1 ​ $ 20 ​ $ — Commercial Real Estate - Non-Owner Occupied ​ 1 ​ ​ 134 ​ ​ — Commercial & Industrial 3 ​ 237 ​ — Residential 1-4 Family - Commercial 4 ​ 1,296 ​ — Residential 1-4 Family - Consumer 23 ​ 4,865 ​ — Residential 1-4 Family - Revolving 3 ​ 103 ​ — Total nonperforming 35 ​ $ 6,655 ​ $ — Total performing and nonperforming 137 ​ $ 20,616 ​ $ 176 The following table provides a summary, by class, of TDRs that continue to accrue interest under the terms of the applicable restructuring agreement, which are considered to be performing, and TDRs that have been placed in nonaccrual status, which are considered to be nonperforming, as of December 31, 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019 ​ No. of Recorded Outstanding ​ ​ Loans ​ Investment ​ Commitment Performing ​ ​ Construction and Land Development 4 ​ $ 1,114 ​ $ — Commercial Real Estate - Owner Occupied 6 ​ 2,228 ​ 26 Commercial Real Estate - Non-Owner Occupied 1 ​ 1,089 ​ — Commercial & Industrial 4 ​ 1,020 ​ — Residential 1-4 Family - Commercial 5 ​ 290 ​ — Residential 1-4 Family - Consumer 69 ​ 9,396 ​ — Residential 1-4 Family - Revolving 2 ​ 56 ​ — Consumer 4 ​ 29 ​ — Other Commercial ​ 1 ​ ​ 464 ​ ​ — Total performing 96 ​ $ 15,686 ​ $ 26 Nonperforming ​ ​ Commercial Real Estate - Owner Occupied 2 ​ $ 176 ​ $ — Commercial & Industrial 1 ​ 55 ​ — Residential 1-4 Family - Consumer 19 ​ 3,522 ​ — Residential 1-4 Family - Revolving 2 ​ 57 ​ — Total nonperforming 24 ​ $ 3,810 ​ $ — Total performing and nonperforming 120 ​ $ 19,496 ​ $ 26
Schedule of TDR by Class and Modification Type	The following table shows, by class and modification type, TDRs that occurred during the year ended December 31, 2020 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ All Restructurings ​ ​ 2020 ​ ​ Recorded ​ ​ No. of ​ Investment at ​ ​ Loans ​ Period End Modified to interest only, at a market rate ​ Residential 1-4 Family - Commercial ​ 1 ​ $ 644 Total interest only at market rate of interest 1 ​ $ 644 ​ ​ ​ ​ ​ ​ Term modification, at a market rate ​ Commercial & Industrial 3 ​ $ 103 Residential 1-4 Family - Commercial 1 ​ ​ 294 Residential 1-4 Family - Consumer 4 ​ 320 Consumer ​ 1 ​ ​ 9 Total loan term extended at a market rate 9 ​ $ 726 ​ ​ ​ ​ ​ ​ Term modification, below market rate ​ Construction and Land Development ​ 1 ​ $ 34 Commercial & Industrial 2 ​ 355 Residential 1-4 Family - Commercial ​ 1 ​ ​ 287 Residential 1-4 Family - Consumer 18 ​ ​ 2,519 Residential 1-4 Family - Revolving 2 ​ 275 Total loan term extended at a below market rate 24 ​ $ 3,470 ​ ​ ​ ​ ​ ​ Interest rate modification, below market rate ​ Total interest only at below market rate of interest — ​ $ — ​ ​ ​ ​ ​ ​ Total 34 ​ $ 4,840 The following table shows, by class and modification type, TDRs that occurred during the year ended December 31, 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ All Restructurings ​ ​ 2019 ​ ​ Recorded ​ ​ No. of ​ Investment at ​ ​ Loans ​ Period End Modified to interest only, at a market rate ​ Total interest only at market rate of interest — ​ $ — ​ ​ ​ ​ ​ ​ Term modification, at a market rate ​ Commercial & Industrial ​ 1 ​ $ 376 Residential 1-4 Family - Commercial 1 ​ ​ 72 Residential 1-4 Family - Consumer 7 ​ 1,688 Consumer 3 ​ 24 Total loan term extended at a market rate 12 ​ $ 2,160 ​ ​ ​ ​ ​ ​ Term modification, below market rate ​ Construction and Land Development ​ 3 ​ $ 193 Residential 1-4 Family - Consumer 22 ​ ​ 2,658 Consumer ​ 1 ​ ​ 5 Total loan term extended at a below market rate 26 ​ $ 2,856 ​ ​ ​ ​ ​ ​ Total 38 ​ $ 5,016 ​ ​ ​ ​ ​ ​
Allowance for Loan Loss Activity, by Portfolio Segment, Balances for Allowance for Credit Losses, and Loans Based on Impairment Methodology	The following tables show the ALLL activity by segment for the year ended December 31, 2020 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, 2020 ​ ​ Commercial ​ Consumer ​ Total Balance at beginning of period ​ $ 30,941 ​ $ 11,353 ​ $ 42,294 Impact of ASC 326 adoption on non-PCD loans ​ 4,432 ​ 40,666 ​ 45,098 Impact of ASC 326 adoption on PCD loans ​ 1,752 ​ 634 ​ 2,386 Impact of adopting ASC 326 ​ 6,184 ​ 41,300 ​ 47,484 Loans charged-off ​ (6,671) ​ (11,522) ​ (18,193) Recoveries credited to allowance ​ 3,517 ​ 3,238 ​ 6,755 Provision charged to operations ​ 83,432 ​ (1,232) ​ 82,200 Balance at end of period ​ $ 117,403 ​ $ 43,137 ​ $ 160,540 The following tables show the ALLL activity by class for the year ended December 31, 2019, and 2018. The tables below include the provision for loan losses. Allocation of a portion of the allowance to one category of loans does not preclude its availability to absorb losses in other categories (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, 2019 ​ ​ Allowance for loan losses ​ Balance, Recoveries Loans Provision Balance, ​ ​ beginning of ​ credited to ​ charged ​ charged to ​ end of ​ ​ the year ​ allowance ​ off ​ operations ​ period Construction and Land Development ​ $ 6,803 ​ $ 665 ​ $ (4,218) ​ $ 2,508 ​ $ 5,758 Commercial Real Estate - Owner Occupied ​ 4,023 ​ 456 ​ (1,346) ​ 786 ​ 3,919 Commercial Real Estate - Non-Owner Occupied ​ 8,865 ​ 109 ​ (270) ​ 839 ​ 9,543 Multifamily Real Estate ​ 649 ​ 85 ​ — ​ (102) ​ 632 Commercial & Industrial ​ 7,636 ​ 1,132 ​ (3,096) ​ 2,932 ​ 8,604 Residential 1-4 Family - Commercial ​ 1,692 ​ 372 ​ (472) ​ (227) ​ 1,365 Residential 1-4 Family - Consumer ​ 1,492 ​ 466 ​ (144) ​ 199 ​ 2,013 Residential 1-4 Family - Revolving ​ 1,297 ​ 692 ​ (698) ​ 32 ​ 1,323 Auto ​ 1,443 ​ 549 ​ (1,282) ​ 743 ​ 1,453 Consumer and all other (1) ​ 7,145 ​ 2,706 ​ (16,582) ​ 14,415 ​ 7,684 Total ​ $ 41,045 ​ $ 7,232 ​ $ (28,108) ​ $ 22,125 ​ $ 42,294 (1) Consumer and Other Commercial are grouped together as Consumer and all other for reporting purposes. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, 2018 ​ ​ Allowance for loan losses ​ Balance, Recoveries Loans Provision Balance, ​ ​ beginning ​ credited to ​ charged ​ charged to ​ end of ​ ​ of the year ​ allowance ​ off ​ operations ​ period Construction and Land Development ​ $ 9,709 ​ $ 447 ​ $ (2,005) ​ $ (1,348) ​ $ 6,803 Commercial Real Estate - Owner Occupied ​ 2,931 ​ 610 ​ (709) ​ 1,191 ​ 4,023 Commercial Real Estate - Non-Owner Occupied ​ 7,544 ​ 100 ​ (94) ​ 1,315 ​ 8,865 Multifamily Real Estate ​ 1,092 ​ 5 ​ — ​ (448) ​ 649 Commercial & Industrial ​ 4,552 ​ 534 ​ (833) ​ 3,383 ​ 7,636 Residential 1-4 Family - Commercial ​ 4,437 ​ 353 ​ (176) ​ (2,922) ​ 1,692 Residential 1-4 Family - Consumer ​ 1,524 ​ 310 ​ (852) ​ 510 ​ 1,492 Residential 1-4 Family - Revolving ​ 1,360 ​ 636 ​ (1,206) ​ 507 ​ 1,297 Auto ​ 975 ​ 436 ​ (1,074) ​ 1,106 ​ 1,443 Consumer and all other (1) ​ 4,084 ​ 1,737 ​ (9,281) ​ 10,605 ​ 7,145 Total ​ $ 38,208 ​ $ 5,168 ​ $ (16,230) ​ $ 13,899 ​ $ 41,045 (1) Consumer and Other Commercial are grouped together as Consumer and all other for reporting purposes. ​ The following table shows the loan and ALLL balances based on impairment methodology by segment as of December 31, 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019 ​ ​ Loans individually ​ Loans collectively ​ Loans acquired with ​ ​ ​ ​ ​ ​ ​ ​ evaluated for ​ evaluated for ​ deteriorated credit ​ ​ ​ ​ ​ ​ ​ ​ impairment ​ impairment ​ quality ​ Total ​ Loans ALL Loans ALL Loans ALL Loans ALL Construction and Land Development ​ $ 6,861 ​ $ 49 ​ $ 1,233,119 ​ $ 5,709 ​ $ 10,944 ​ $ — ​ $ 1,250,924 ​ $ 5,758 Commercial Real Estate - Owner Occupied ​ 11,621 ​ 146 ​ 2,002,184 ​ 3,773 ​ 27,438 ​ — ​ 2,041,243 ​ 3,919 Commercial Real Estate - Non-Owner Occupied ​ 3,845 ​ 2 ​ 3,267,688 ​ 9,541 ​ 14,565 ​ — ​ 3,286,098 ​ 9,543 Multifamily Real Estate ​ — ​ — ​ 633,649 ​ 632 ​ 94 ​ — ​ 633,743 ​ 632 Commercial & Industrial ​ 6,236 ​ 619 ​ 2,106,218 ​ 7,768 ​ 1,579 ​ 217 ​ 2,114,033 ​ 8,604 Residential 1-4 Family - Commercial ​ 5,773 ​ 162 ​ 706,359 ​ 1,203 ​ 12,205 ​ — ​ 724,337 ​ 1,365 Residential 1-4 Family - Consumer ​ 20,446 ​ 1,242 ​ 855,344 ​ 771 ​ 14,713 ​ — ​ 890,503 ​ 2,013 Residential 1-4 Family - Revolving ​ 3,048 ​ 510 ​ 652,329 ​ 813 ​ 4,127 ​ — ​ 659,504 ​ 1,323 Auto ​ 563 ​ 221 ​ 349,852 ​ 1,232 ​ 4 ​ — ​ 350,419 ​ 1,453 Consumer and all other (1) ​ 730 ​ 76 ​ 658,390 ​ 7,608 ​ 1,012 ​ — ​ 660,132 ​ 7,684 Total loans held for investment, net ​ $ 59,123 ​ $ 3,027 ​ $ 12,465,132 ​ $ 39,050 ​ $ 86,681 ​ $ 217 ​ $ 12,610,936 ​ $ 42,294 (1) Consumer and Other Commercial are grouped together as Consumer and all other for reporting purposes.
Loans Receivables Related Risk Rating	The following table shows the recorded investment in all loans, excluding PCI loans, by class with their related risk level as of December 31, 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass Watch & Special Mention Substandard Doubtful Total Construction and Land Development ​ $ 1,197,066 ​ $ 37,182 ​ $ 5,732 ​ $ — ​ $ 1,239,980 Commercial Real Estate - Owner Occupied ​ 1,916,492 ​ 87,004 ​ 10,309 ​ — ​ 2,013,805 Commercial Real Estate - Non-Owner Occupied ​ 3,205,463 ​ 62,368 ​ 3,608 ​ 94 ​ 3,271,533 Multifamily Real Estate ​ 613,844 ​ 19,396 ​ 409 ​ — ​ 633,649 Commercial & Industrial ​ 2,043,903 ​ 60,495 ​ 8,048 ​ 8 ​ 2,112,454 Residential 1-4 Family - Commercial ​ 680,894 ​ 24,864 ​ 6,374 ​ — ​ 712,132 Residential 1-4 Family - Consumer ​ 841,408 ​ 13,592 ​ 20,534 ​ 256 ​ 875,790 Residential 1-4 Family - Revolving ​ 641,069 ​ 6,373 ​ 7,935 ​ — ​ 655,377 Auto ​ 345,960 ​ 2,630 ​ 1,825 ​ — ​ 350,415 Consumer ​ 371,315 ​ 550 ​ 320 ​ — ​ 372,185 Other Commercial ​ 284,914 ​ 1,863 ​ 158 ​ — ​ 286,935 Total ​ $ 12,142,328 ​ $ 316,317 ​ $ 65,252 ​ $ 358 ​ $ 12,524,255
Schedule of Acquired Loan Portfolio and Accretable Yield	The following shows changes in the accretable yield for loans accounted for under ASC 310-30, Receivables – Loans and Debt Securities Acquired with Deteriorated Credit Quality, ​ ​ ​ ​ ​ ​ 2019 Balance at beginning of period ​ $ 31,201 Additions ​ 5,060 Accretion ​ (13,432) Reclass of nonaccretable difference due to improvement in expected cash flows ​ 4,485 Measurement period adjustment ​ 631 Other, net (1) ​ 3,329 Balance at end of period ​ $ 31,274 (1) This line item represents changes in the cash flows expected to be collected due to the impact of non-credit changes such as prepayment assumptions, changes in interest rates on variable rate PCI loans, and discounted payoffs that occurred in the year.
Purchased Impaired
Accounts, Notes, Loans and Financing Receivable [Line Items]
Summary of Aging of the Loan Portfolio by Class	The following table shows the PCI loan portfolios, by class and their delinquency status, at December 31, 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 30-89 Days Greater than ​ ​ ​ ​ ​ ​ Past Due ​ 90 Days ​ Current ​ Total Construction and Land Development ​ $ 136 ​ $ 343 ​ $ 10,465 ​ $ 10,944 Commercial Real Estate - Owner Occupied ​ 480 ​ 6,884 ​ 20,074 ​ 27,438 Commercial Real Estate - Non-Owner Occupied ​ 848 ​ 987 ​ 12,730 ​ 14,565 Multifamily Real Estate ​ — ​ — ​ 94 ​ 94 Commercial & Industrial ​ — ​ 989 ​ 590 ​ 1,579 Residential 1-4 Family - Commercial ​ 543 ​ 1,995 ​ 9,667 ​ 12,205 Residential 1-4 Family - Consumer ​ 927 ​ 1,781 ​ 12,005 ​ 14,713 Residential 1-4 Family - Revolving ​ 287 ​ 205 ​ 3,635 ​ 4,127 Auto ​ ​ — ​ ​ — ​ ​ 4 ​ ​ 4 Consumer ​ ​ — ​ ​ 9 ​ ​ 659 ​ ​ 668 Other Commercial ​ — ​ — ​ 344 ​ 344 Total ​ $ 3,221 ​ $ 13,193 ​ $ 70,267 ​ $ 86,681
Loans Receivables Related Risk Rating	The following table shows the recorded investment in only PCI loans by class with their related risk level as of December 31, 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass Watch & Special Mention Substandard Doubtful Total Construction and Land Development ​ $ 1,092 ​ $ 3,692 ​ $ 6,160 ​ $ — ​ $ 10,944 Commercial Real Estate - Owner Occupied ​ 8,264 ​ 10,524 ​ 8,650 ​ — ​ 27,438 Commercial Real Estate - Non-Owner Occupied ​ 3,826 ​ 9,415 ​ 1,324 ​ — ​ 14,565 Multifamily Real Estate ​ — ​ 94 ​ — ​ — ​ 94 Commercial & Industrial ​ 127 ​ 25 ​ 1,427 ​ — ​ 1,579 Residential 1-4 Family - Commercial ​ 6,000 ​ 2,693 ​ 3,512 ​ — ​ 12,205 Residential 1-4 Family - Consumer ​ 9,947 ​ 557 ​ 4,209 ​ — ​ 14,713 Residential 1-4 Family - Revolving ​ 2,887 ​ 707 ​ 533 ​ — ​ 4,127 Auto ​ ​ 2 ​ ​ — ​ ​ 2 ​ ​ — ​ ​ 4 Consumer ​ 657 ​ — ​ 11 ​ — ​ 668 Other Commercial ​ ​ 120 ​ ​ 224 ​ ​ — ​ ​ — ​ ​ 344 Total ​ $ 32,922 ​ $ 27,931 ​ $ 25,828 ​ $ — ​ $ 86,681
Commercial Portfolio
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivables Related Risk Rating	The table below details the amortized cost of the classes of loans within the Commercial segment by risk level and year of origination as of December 31, 2020 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020 ​ ​ ​ Term Loans Amortized Cost Basis by Origination Year ​ ​ ​ ​ ​ ​ ​ ​ 2020 ​ 2019 ​ 2018 ​ 2017 ​ 2016 ​ Prior ​ Revolving Loans ​ Total Construction and Land Development ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 316,585 ​ $ 277,142 ​ $ 116,800 ​ $ 24,770 ​ $ 42,970 ​ $ 54,023 ​ $ 23,324 ​ $ 855,614 Watch ​ ​ 1,873 ​ ​ 18,181 ​ ​ 8,434 ​ ​ 344 ​ ​ 2,355 ​ ​ 6,372 ​ ​ 412 ​ ​ 37,971 Special Mention ​ ​ — ​ ​ 5,532 ​ ​ 135 ​ ​ — ​ ​ — ​ ​ 2,655 ​ ​ — ​ ​ 8,322 Substandard ​ ​ — ​ ​ — ​ ​ 17,780 ​ ​ 64 ​ ​ 2,037 ​ ​ 4,010 ​ ​ — ​ ​ 23,891 Total Construction and Land Development ​ $ 318,458 ​ $ 300,855 ​ $ 143,149 ​ $ 25,178 ​ $ 47,362 ​ $ 67,060 ​ $ 23,736 ​ $ 925,798 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial Real Estate - Owner Occupied ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 286,522 ​ $ 375,541 ​ $ 300,583 ​ $ 233,359 ​ $ 128,261 ​ $ 570,361 ​ $ 18,838 ​ $ 1,913,465 Watch ​ ​ 1,942 ​ ​ 14,611 ​ ​ 22,224 ​ ​ 15,623 ​ ​ 24,979 ​ ​ 41,361 ​ ​ 1,648 ​ ​ 122,388 Special Mention ​ ​ 988 ​ ​ 6,052 ​ ​ 5,749 ​ ​ 4,198 ​ ​ 9,907 ​ ​ 30,455 ​ ​ 1,121 ​ ​ 58,470 Substandard ​ ​ — ​ ​ 4,858 ​ ​ 5,159 ​ ​ 914 ​ ​ 1,555 ​ ​ 21,101 ​ ​ 999 ​ ​ 34,586 Total Commercial Real Estate - Owner Occupied ​ $ 289,452 ​ $ 401,062 ​ $ 333,715 ​ $ 254,094 ​ $ 164,702 ​ $ 663,278 ​ $ 22,606 ​ $ 2,128,909 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial Real Estate - Non-Owner Occupied ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 381,849 ​ $ 455,427 ​ $ 433,183 ​ $ 403,677 ​ $ 336,630 ​ $ 850,035 ​ $ 30,421 ​ $ 2,891,222 Watch ​ ​ 28,354 ​ ​ 142,279 ​ ​ 76,838 ​ ​ 59,451 ​ ​ 79,533 ​ ​ 224,944 ​ ​ 16,870 ​ ​ 628,269 Special Mention ​ ​ 702 ​ ​ 11,072 ​ ​ 34,905 ​ ​ 18,073 ​ ​ 40,771 ​ ​ 11,211 ​ ​ 723 ​ ​ 117,457 Substandard ​ ​ 246 ​ ​ — ​ ​ 13,357 ​ ​ — ​ ​ 25 ​ ​ 6,986 ​ ​ — ​ ​ 20,614 Total Commercial Real Estate - Non-Owner Occupied ​ $ 411,151 ​ $ 608,778 ​ $ 558,283 ​ $ 481,201 ​ $ 456,959 ​ $ 1,093,176 ​ $ 48,014 ​ $ 3,657,562 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial & Industrial ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 1,730,876 ​ $ 350,618 ​ $ 199,489 ​ $ 67,035 ​ $ 71,799 ​ $ 140,461 ​ $ 590,701 ​ $ 3,150,979 Watch ​ ​ 4,872 ​ ​ 32,028 ​ ​ 13,073 ​ ​ 6,500 ​ ​ 3,182 ​ ​ 4,906 ​ ​ 19,972 ​ ​ 84,533 Special Mention ​ ​ 1,009 ​ ​ 2,178 ​ ​ 3,890 ​ ​ 1,150 ​ ​ 724 ​ ​ 1,234 ​ ​ 4,755 ​ ​ 14,940 Substandard ​ ​ 534 ​ ​ 4,269 ​ ​ 1,274 ​ ​ 309 ​ ​ 560 ​ ​ 2,676 ​ ​ 3,386 ​ ​ 13,008 Total Commercial & Industrial ​ $ 1,737,291 ​ $ 389,093 ​ $ 217,726 ​ $ 74,994 ​ $ 76,265 ​ $ 149,277 ​ $ 618,814 ​ $ 3,263,460 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Multifamily Real Estate ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 144,805 ​ $ 85,740 ​ $ 150,724 ​ $ 117,881 ​ $ 67,984 ​ $ 231,113 ​ $ 2,311 ​ $ 800,558 Watch ​ ​ — ​ ​ 5,074 ​ ​ 475 ​ ​ — ​ ​ 617 ​ ​ 560 ​ ​ — ​ ​ 6,726 Special Mention ​ ​ 2,280 ​ ​ — ​ ​ 4,388 ​ ​ — ​ ​ — ​ ​ 760 ​ ​ — ​ ​ 7,428 Substandard ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 33 ​ ​ — ​ ​ 33 Total Multifamily Real Estate ​ $ 147,085 ​ $ 90,814 ​ $ 155,587 ​ $ 117,881 ​ $ 68,601 ​ $ 232,466 ​ $ 2,311 ​ $ 814,745 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Residential 1-4 Family - Commercial ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 104,630 ​ $ 89,332 ​ $ 70,310 ​ $ 79,156 ​ $ 68,915 ​ $ 201,492 ​ $ 2,236 ​ $ 616,071 Watch ​ ​ 666 ​ ​ 6,665 ​ ​ 8,252 ​ ​ 4,141 ​ ​ 4,067 ​ ​ 9,307 ​ ​ 195 ​ ​ 33,293 Special Mention ​ ​ — ​ ​ — ​ ​ 601 ​ ​ 663 ​ ​ 468 ​ ​ 5,923 ​ ​ — ​ ​ 7,655 Substandard ​ ​ 644 ​ ​ 793 ​ ​ 4,913 ​ ​ 1,995 ​ ​ 986 ​ ​ 5,111 ​ ​ 488 ​ ​ 14,930 Total Residential 1-4 Family - Commercial ​ $ 105,940 ​ $ 96,790 ​ $ 84,076 ​ $ 85,955 ​ $ 74,436 ​ $ 221,833 ​ $ 2,919 ​ $ 671,949 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other Commercial ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 223,490 ​ $ 112,045 ​ $ 9,549 ​ $ 30,314 ​ $ 16,494 ​ $ 42,158 ​ $ 44,180 ​ $ 478,230 Watch ​ ​ — ​ ​ — ​ ​ 613 ​ ​ 1,299 ​ ​ 1,189 ​ ​ 3,934 ​ ​ — ​ ​ 7,035 Special Mention ​ ​ 10 ​ ​ — ​ ​ — ​ ​ 7 ​ ​ — ​ ​ 4,591 ​ ​ 102 ​ ​ 4,710 Total Other Commercial ​ $ 223,500 ​ $ 112,045 ​ $ 10,162 ​ $ 31,620 ​ $ 17,683 ​ $ 50,683 ​ $ 44,282 ​ $ 489,975 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total Commercial ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 3,188,757 ​ $ 1,745,845 ​ $ 1,280,638 ​ $ 956,192 ​ $ 733,053 ​ $ 2,089,643 ​ $ 712,011 ​ $ 10,706,139 Watch ​ ​ 37,707 ​ ​ 218,838 ​ ​ 129,909 ​ ​ 87,358 ​ ​ 115,922 ​ ​ 291,384 ​ ​ 39,097 ​ ​ 920,215 Special Mention ​ ​ 4,989 ​ ​ 24,834 ​ ​ 49,668 ​ ​ 24,091 ​ ​ 51,870 ​ ​ 56,829 ​ ​ 6,701 ​ ​ 218,982 Substandard ​ ​ 1,424 ​ ​ 9,920 ​ ​ 42,483 ​ ​ 3,282 ​ ​ 5,163 ​ ​ 39,917 ​ ​ 4,873 ​ ​ 107,062 Total Commercial ​ $ 3,232,877 ​ $ 1,999,437 ​ $ 1,502,698 ​ $ 1,070,923 ​ $ 906,008 ​ $ 2,477,773 ​ $ 762,682 ​ $ 11,952,398
Consumer Portfolio
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivables Related Risk Rating	For Consumer loans, the Company evaluates credit quality based on the delinquency status of the loan. The following table details the amortized cost of the classes of loans within the Consumer segment based on their delinquency status and year of origination as of December 31, 2020 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020 ​ ​ ​ Term Loans Amortized Cost Basis by Origination Year ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020 ​ 2019 ​ 2018 ​ 2017 ​ 2016 ​ Prior ​ Revolving Loans ​ Total Residential 1-4 Family - Consumer ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Current ​ $ 213,763 ​ $ 75,133 ​ $ 64,299 ​ $ 68,320 ​ $ 102,123 ​ $ 269,203 ​ $ 11 ​ $ 792,852 30-59 Days Past Due ​ ​ 678 ​ ​ 181 ​ ​ 2,243 ​ ​ 516 ​ ​ 457 ​ ​ 6,107 ​ ​ — ​ ​ 10,182 60-89 Days Past Due ​ ​ 156 ​ ​ — ​ ​ 57 ​ ​ 679 ​ ​ — ​ ​ 641 ​ ​ — ​ ​ 1,533 90+ Days Past Due ​ ​ 608 ​ ​ 1,696 ​ ​ 23 ​ ​ — ​ ​ 1,246 ​ ​ 2,126 ​ ​ — ​ ​ 5,699 Nonaccrual ​ ​ — ​ ​ — ​ ​ 696 ​ ​ 851 ​ ​ 887 ​ ​ 10,166 ​ ​ — ​ ​ 12,600 Total Residential 1-4 Family - Consumer ​ $ 215,205 ​ $ 77,010 ​ $ 67,318 ​ $ 70,366 ​ $ 104,713 ​ $ 288,243 ​ $ 11 ​ $ 822,866 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Residential 1-4 Family - Revolving ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Current ​ $ 13,217 ​ $ 3,916 ​ $ 1,593 ​ $ 300 ​ $ — ​ $ 636 ​ $ 567,860 ​ $ 587,522 30-59 Days Past Due ​ ​ 70 ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 2,905 ​ ​ 2,975 60-89 Days Past Due ​ ​ 53 ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 991 ​ ​ 1,044 90+ Days Past Due ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 826 ​ ​ 826 Nonaccrual ​ ​ — ​ ​ — ​ ​ 21 ​ ​ — ​ ​ — ​ ​ 227 ​ ​ 4,381 ​ ​ 4,629 Total Residential 1-4 Family - Revolving ​ $ 13,340 ​ $ 3,916 ​ $ 1,614 ​ $ 300 ​ $ — ​ $ 863 ​ $ 576,963 ​ $ 596,996 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Consumer ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Current ​ $ 26,498 ​ $ 68,208 ​ $ 67,041 ​ $ 22,464 ​ $ 9,997 ​ $ 15,893 ​ $ 35,450 ​ $ 245,551 30-59 Days Past Due ​ ​ 35 ​ ​ 252 ​ ​ 504 ​ ​ 98 ​ ​ 15 ​ ​ 143 ​ ​ 119 ​ ​ 1,166 60-89 Days Past Due ​ ​ 28 ​ ​ 176 ​ ​ 317 ​ ​ 23 ​ ​ — ​ ​ 3 ​ ​ 3 ​ ​ 550 90+ Days Past Due ​ ​ 5 ​ ​ 84 ​ ​ 242 ​ ​ 4 ​ ​ — ​ ​ 56 ​ ​ 3 ​ ​ 394 Nonaccrual ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 69 ​ ​ — ​ ​ 69 Total Consumer ​ $ 26,566 ​ $ 68,720 ​ $ 68,104 ​ $ 22,589 ​ $ 10,012 ​ $ 16,164 ​ $ 35,575 ​ $ 247,730 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Auto ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Current ​ $ 171,051 ​ $ 115,319 ​ $ 55,886 ​ $ 32,555 ​ $ 17,081 ​ $ 6,314 ​ $ — ​ $ 398,206 30-59 Days Past Due ​ ​ 239 ​ ​ 467 ​ ​ 543 ​ ​ 478 ​ ​ 197 ​ ​ 152 ​ ​ — ​ ​ 2,076 60-89 Days Past Due ​ ​ 124 ​ ​ 150 ​ ​ — ​ ​ 59 ​ ​ 26 ​ ​ 17 ​ ​ — ​ ​ 376 90+ Days Past Due ​ ​ 6 ​ ​ 23 ​ ​ 53 ​ ​ 58 ​ ​ 15 ​ ​ 11 ​ ​ — ​ ​ 166 Nonaccrual ​ ​ 30 ​ ​ 93 ​ ​ 126 ​ ​ 101 ​ ​ 88 ​ ​ 62 ​ ​ — ​ ​ 500 Total Auto ​ $ 171,450 ​ $ 116,052 ​ $ 56,608 ​ $ 33,251 ​ $ 17,407 ​ $ 6,556 ​ $ — ​ $ 401,324 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total Consumer ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Current ​ $ 424,529 ​ $ 262,576 ​ $ 188,819 ​ $ 123,639 ​ $ 129,201 ​ $ 292,046 ​ $ 603,321 ​ $ 2,024,131 30-59 Days Past Due ​ ​ 1,022 ​ ​ 900 ​ ​ 3,290 ​ ​ 1,092 ​ ​ 669 ​ ​ 6,402 ​ ​ 3,024 ​ ​ 16,399 60-89 Days Past Due ​ ​ 361 ​ ​ 326 ​ ​ 374 ​ ​ 761 ​ ​ 26 ​ ​ 661 ​ ​ 994 ​ ​ 3,503 90+ Days Past Due ​ ​ 619 ​ ​ 1,803 ​ ​ 318 ​ ​ 62 ​ ​ 1,261 ​ ​ 2,193 ​ ​ 829 ​ ​ 7,085 Nonaccrual ​ ​ 30 ​ ​ 93 ​ ​ 843 ​ ​ 952 ​ ​ 975 ​ ​ 10,524 ​ ​ 4,381 ​ ​ 17,798 Total Consumer ​ $ 426,561 ​ $ 265,698 ​ $ 193,644 ​ $ 126,506 ​ $ 132,132 ​ $ 311,826 ​ $ 612,549 ​ $ 2,068,916

PREMISES AND EQUIPMENT (Tables)

PREMISES AND EQUIPMENT (Tables)	12 Months Ended
	Dec. 31, 2020
Property, Plant and Equipment [Abstract]
Summary of Bank Premises and Equipment	The Company’s premises and equipment as of December 31, 2020 and 2019 are as follows (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020 2019 Land ​ $ 39,845 ​ $ 44,578 Land improvements and buildings ​ 129,497 ​ 123,189 Leasehold improvements ​ 24,037 ​ 20,597 Furniture and equipment ​ 80,191 ​ 71,469 Construction in progress ​ 2,497 ​ 3,549 Total ​ 276,067 ​ 263,382 Accumulated depreciation and amortization ​ (112,238) ​ (102,309) Bank premises and equipment, net ​ $ 163,829 ​ $ 161,073 ​

GOODWILL AND INTANGIBLE ASSETS

GOODWILL AND INTANGIBLE ASSETS (Tables)	12 Months Ended
	Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Information Concerning Intangible Assets with Finite Life	Due to the uncertainties driven by COVID-19, the Company analyzed its intangible assets on a quarterly basis throughout 2020, and concluded no impairment existed as of the balance sheet date. Information concerning intangible assets with a finite life is presented in the following table (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Gross ​ ​ Net ​ ​ Carrying ​ Accumulated ​ Carrying ​ ​ Value ​ Amortization ​ Value December 31, 2020 ​ ​ ​ Core deposit intangibles ​ $ 135,300 ​ $ 88,109 ​ $ 47,191 Other amortizable intangibles ​ 15,240 ​ 5,246 ​ 9,994 December 31, 2019 ​ ​ ​ Core deposit intangibles ​ $ 135,300 ​ $ 73,336 ​ $ 61,964 Other amortizable intangibles ​ 15,349 ​ 3,644 ​ 11,705
Estimated Remaining Amortization Expense of Intangibles	As of December 31, 2020, the estimated remaining amortization expense of intangibles for the years ended is as follows (dollars in thousands): ​ ​ ​ ​ ​ 2021 $ 13,874 2022 ​ ​ 11,490 2023 ​ ​ 9,688 2024 ​ ​ 7,818 2025 ​ ​ 6,221 Thereafter ​ ​ 8,094 Total estimated amortization expense ​ $ 57,185

LEASES (Tables)

LEASES (Tables)	12 Months Ended
	Dec. 31, 2020
Leases [Abstract]
Lessee Lease Portfolio and Other Supplemental Lease Information	The tables below provide information about the Company’s lessee lease portfolio and other supplemental lease information (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020 ​ ​ ​ December 31, 2019 ​ ​ Operating ​ ​ Finance ​ ​ ​ Operating (2) Right-of-use-assets ​ $ 48,051 ​ ​ $ 7,425 ​ ​ $ 54,941 ​ Lease liabilities ​ ​ 58,901 ​ ​ ​ 10,621 ​ ​ ​ 66,052 ​ Lease Term and Discount Rate of Operating leases: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted-average remaining lease term (years) ​ 7.27 ​ ​ ​ 8.08 ​ ​ ​ 7.36 ​ Weighted-average discount rate (1) ​ 2.66 % ​ ​ 1.17 % ​ ​ 2.69 % (1) An incremental borrowing rate is used based on information available at commencement date of lease or at remeasurement date. (2) At December 31, 2019, all leases were classified as operating leases.
Other Lease Information	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year ended December 31, ​ 2020 ​ 2019 Cash paid for amounts included in measurement of lease liabilities: ​ ​ ​ ​ ​ ​ Operating Cash Flows from Finance Leases ​ $ 72 ​ $ — Operating Cash Flows from Operating Leases ​ 13,491 ​ ​ 13,697 Right-of-use assets obtained in exchange for lease obligations: ​ ​ ​ ​ ​ Operating leases ​ 4,577 ​ ​ 8,065 Finance leases ​ ​ 10,549 ​ ​ —
Lease Cost	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year ended December 31, ​ ​ ​ 2020 ​ ​ 2019 Net Operating Lease Cost ​ $ 11,006 ​ $ 11,526 Finance Lease Cost: ​ ​ ​ ​ ​ ​ Amortization of right-of-use assets ​ ​ 536 ​ ​ — Interest on lease liabilities ​ ​ 72 ​ ​ — Total Lease Cost ​ $ 11,614 ​ $ 11,526
Maturities of Lessor and Lessee Arrangements Outstanding	The maturities of lessor and lessee arrangements outstanding are presented in the table below (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020 ​ ​ Lessor ​ Lessee ​ ​ ​ Sales-type and Direct Financing ​ Operating ​ Finance 2021 ​ $ 30,206 ​ $ 11,912 ​ $ 1,261 2022 ​ 30,969 ​ ​ 10,764 ​ ​ 1,292 2023 ​ 29,306 ​ ​ 9,903 ​ ​ 1,325 2024 ​ 27,355 ​ ​ 8,903 ​ ​ 1,358 2025 ​ ​ 18,540 ​ ​ 6,643 ​ ​ 1,392 Thereafter ​ 14,329 ​ ​ 17,196 ​ ​ 4,515 Total undiscounted cash flows ​ 150,705 ​ ​ 65,321 ​ ​ 11,143 Less: Adjustments (1) ​ 9,525 ​ ​ 6,420 ​ ​ 522 Total (2) ​ $ 141,180 ​ $ 58,901 ​ $ 10,621 (1) Lessor – unearned income and unearned guaranteed residual value; Lessee – imputed interest. (2) Represents lease receivables for lessor arrangements and lease liabilities for lessee arrangements

DEPOSITS (Tables)

DEPOSITS (Tables)	12 Months Ended
	Dec. 31, 2020
Deposits, Interest-bearing and Noninterest-bearing, Alternative [Abstract]
Schedule of Deposits by Type	The major types of interest-bearing deposits are as follows for the years ended December 31, (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020 2019 Interest-bearing deposits: ​ ​ NOW accounts ​ $ 3,621,181 ​ $ 2,905,714 Money market accounts ​ 4,248,335 ​ 3,951,856 Savings accounts ​ 904,095 ​ 727,847 Time deposits of $250,000 and over ​ 654,224 ​ 684,797 Other time deposits ​ 1,926,227 ​ 2,064,628 Total interest-bearing deposits ​ $ 11,354,062 ​ $ 10,334,842
Scheduled Maturities of Time Deposits	As of December 31, 2020, the scheduled maturities of time deposits are as follows for the years ended December 31, (dollars in thousands): ​ ​ ​ ​ ​ 2021 $ 1,846,844 2022 ​ 369,810 2023 ​ 160,021 2024 ​ 171,968 2025 ​ 31,250 Thereafter ​ 558 Total scheduled maturities of time deposits ​ $ 2,580,451

BORROWINGS (Tables)

BORROWINGS (Tables)	12 Months Ended
	Dec. 31, 2020
Debt Disclosure [Abstract]
Short-Term Borrowings	Total short-term borrowings consist of the following as of December 31, 2020 and 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020 ​ 2019 Securities sold under agreements to repurchase ​ $ 100,888 ​ $ 66,053 ​ Federal Funds Purchased ​ ​ 150,000 ​ ​ — ​ FHLB Advances ​ 100,000 ​ 370,200 ​ Total short-term borrowings ​ $ 350,888 ​ $ 436,253 ​ ​ ​ ​ ​ ​ ​ ​ ​ Average outstanding balance during the period ​ $ 213,932 ​ $ 673,116 ​ Average interest rate (during the period) ​ 0.79 % 2.30 % Average interest rate at end of period ​ 0.13 % 1.52 %
Long-Term Borrowings	​ Total long-term borrowings consist of the following as of December 31, 2020 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Spread to ​ ​ ​ ​ ​ ​ ​ ​ ​ Principal ​ 3-Month LIBOR ​ Rate (1) ​ Maturity ​ Investment (2) Trust Preferred Capital Securities ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Trust Preferred Capital Note - Statutory Trust I ​ $ 22,500 2.75 % 2.99 % 6/17/2034 ​ $ 696 Trust Preferred Capital Note - Statutory Trust II ​ 36,000 1.40 % 1.64 % 6/15/2036 ​ 1,114 VFG Limited Liability Trust I Indenture ​ 20,000 2.73 % 2.97 % 3/18/2034 ​ 619 FNB Statutory Trust II Indenture ​ 12,000 3.10 % 3.34 % 6/26/2033 ​ 372 Gateway Capital Statutory Trust I ​ 8,000 3.10 % 3.34 % 9/17/2033 ​ 248 Gateway Capital Statutory Trust II ​ 7,000 2.65 % 2.89 % 6/17/2034 ​ 217 Gateway Capital Statutory Trust III ​ 15,000 1.50 % 1.74 % 5/30/2036 ​ 464 Gateway Capital Statutory Trust IV ​ 25,000 1.55 % 1.79 % 7/30/2037 ​ 774 MFC Capital Trust II ​ 5,000 2.85 % 3.09 % 1/23/2034 ​ 155 Total Trust Preferred Capital Securities ​ $ 150,500 ​ $ 4,659 FHLB Advances ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fixed Rate Convertible ​ ​ 200,000 ​ - % 1.78% % 10/26/2028 ​ ​ ​ Total FHLB Advances ​ $ 200,000 ​ ​ ​ ​ ​ ​ ​ ​ ​ Subordinated Debt (3)(4) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2026 Subordinated Debt (5) ​ ​ 150,000 ​ - % 5.00 % 12/15/2026 ​ ​ ​ Total Subordinated Debt ​ $ 150,000 ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Premium (Discount) (6) ​ ​ (15,330) ​ ​ ​ ​ ​ ​ ​ ​ ​ Investment in Trust Preferred Capital Securities ​ ​ 4,659 ​ ​ ​ ​ ​ ​ ​ ​ ​ Total Long-term Borrowings ​ $ 489,829 ​ ​ ​ ​ ​ ​ ​ ​ ​ (1) Rate as of December 31, 2020. Calculated using non-rounded numbers. (2) The total of the trust preferred capital securities and investments in the respective trusts represents the principal asset of the Company’s junior subordinated debt securities with like maturities and like interest rates to the capital securities. The Company’s investment in the trusts is reported in "Other Assets" on the Company’s Consolidated Balance Sheets. (3) The remaining issuance discount as of December 31, 2020 is $1.2 million. (4) Subordinated notes qualify as Tier 2 capital for the Company for regulatory purposes. (5) Fixed-to-floating rate notes. On December 15, 2021, the interest rate will change to a floating rate of LIBOR plus 3.175% through its maturity date. (6) Includes discount on issued subordinated notes. ​ ​ Total long-term borrowings consist of the following as of December 31, 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Spread to ​ ​ ​ ​ ​ ​ ​ ​ ​ Principal ​ 3-Month LIBOR ​ Rate (1) ​ Maturity ​ Investment (2) Trust Preferred Capital Securities ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Trust Preferred Capital Note - Statutory Trust I ​ $ 22,500 2.75 % 4.66 % 6/17/2034 ​ $ 696 Trust Preferred Capital Note - Statutory Trust II ​ 36,000 1.40 % 3.31 % 6/15/2036 ​ 1,114 VFG Limited Liability Trust I Indenture ​ 20,000 2.73 % 4.64 % 3/18/2034 ​ 619 FNB Statutory Trust II Indenture ​ 12,000 3.10 % 5.01 % 6/26/2033 ​ 372 Gateway Capital Statutory Trust I ​ 8,000 3.10 % 5.01 % 9/17/2033 ​ 248 Gateway Capital Statutory Trust II ​ 7,000 2.65 % 4.56 % 6/17/2034 ​ 217 Gateway Capital Statutory Trust III ​ 15,000 1.50 % 3.41 % 5/30/2036 ​ 464 Gateway Capital Statutory Trust IV ​ 25,000 1.55 % 3.46 % 7/30/2037 ​ 774 MFC Capital Trust II ​ 5,000 2.85 % 4.76 % 1/23/2034 ​ 155 Total Trust Preferred Capital Securities ​ $ 150,500 ​ $ 4,659 FHLB Advances (3) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Convertible Flipper ​ $ 50,000 ​ (0.75) % 1.16 % 8/17/2029 ​ ​ ​ Convertible Flipper ​ ​ 200,000 ​ (0.50) % 1.41 % 5/15/2024 ​ ​ ​ Convertible Flipper ​ ​ 150,000 ​ (0.75) % 1.16 % 5/22/2029 ​ ​ ​ Convertible Flipper ​ ​ 50,000 ​ (0.75) % 1.16 % 5/30/2029 ​ ​ ​ Convertible Flipper ​ ​ 100,000 ​ (0.75) % 1.16 % 6/21/2029 ​ ​ ​ Fixed Rate Convertible ​ ​ 200,000 ​ - % 1.78 % 10/26/2028 ​ ​ ​ Fixed Rate Hybrid ​ ​ 20,000 ​ - % 1.58 % 5/18/2020 ​ ​ ​ Fixed Rate Credit ​ ​ 10,000 ​ - % 1.54 % 10/2/2020 ​ ​ ​ Total FHLB Advances ​ $ 780,000 ​ ​ ​ ​ ​ ​ ​ ​ ​ Subordinated Debt (4)(5) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2025 Subordinated Debt ​ $ 8,500 ​ - % 6.75 % 6/30/2025 ​ ​ ​ 2026 Subordinated Debt (6) ​ ​ 150,000 ​ - % 5.00 % 12/15/2026 ​ ​ ​ Total Subordinated Debt ​ $ 158,500 ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Premium (Discount) (7) ​ ​ (16,164) ​ ​ ​ ​ ​ ​ ​ ​ ​ Investment in Trust Preferred Capital Securities ​ ​ 4,659 ​ ​ ​ ​ ​ ​ ​ ​ ​ Total Long-term Borrowings ​ $ 1,077,495 ​ ​ ​ ​ ​ ​ ​ ​ ​ (1) Rate as of December 31, 2019. Calculated using non-rounded numbers. (2) The total of the trust preferred capital securities and investments in the respective trusts represents the principal asset of the Company’s junior subordinated debt securities with like maturities and like interest rates to the capital securities. The Company’s investment in the trusts is reported in "Other Assets" on the Company’s Consolidated Balance Sheets. (3) Convertible Flippers have interest rate floors of 0% . (4) The remaining issuance discount as of December 31, 2019 is $1.4 million. (5) Subordinated notes qualify as Tier 2 capital for the Company for regulatory purposes. (6) Fixed-to-floating rate notes. On December 15, 2021, the interest rate will change to a floating rate of LIBOR plus 3.175% through its maturity date. (7) Includes discount on issued subordinated notes.
Contractual Maturities of Long-Term Debt	As of December 31, 2020, the contractual maturities of long-term debt are as follows for the years ending (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Trust ​ ​ ​ ​ ​ Preferred ​ ​ Fair Value Total ​ Capital Subordinated FHLB Premium Long-term ​ Notes Debt Advances (Discount) (1) Borrowings 2021 ​ $ — ​ $ — ​ $ — ​ $ (1,008) ​ $ (1,008) 2022 ​ — ​ — ​ — ​ (1,030) ​ (1,030) 2023 ​ — ​ — ​ — ​ (1,053) ​ (1,053) 2024 ​ — ​ — ​ — ​ (1,078) ​ (1,078) 2025 ​ — ​ — ​ — ​ (1,102) ​ (1,102) Thereafter ​ 155,159 ​ 150,000 ​ 200,000 ​ (10,059) ​ 495,100 Total long-term borrowings ​ $ 155,159 ​ $ 150,000 ​ $ 200,000 ​ $ (15,330) ​ $ 489,829 ​ (1) Includes discount on issued subordinated notes.

COMMITMENTS AND CONTINGENCIES (

COMMITMENTS AND CONTINGENCIES (Tables)	12 Months Ended
	Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Balances of Commitments and Contingencies	The following table presents the balances of commitments and contingencies as of December 31, (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020 2019 Commitments with off-balance sheet risk: ​ ​ Commitments to extend credit (1) ​ $ 4,722,412 ​ $ 4,691,272 Letters of credit ​ 161,827 ​ 209,658 Total commitments with off-balance sheet risk ​ $ 4,884,239 ​ $ 4,900,930 (1) Includes unfunded overdraft protection. ​ ​ ​ ​ ​ ​
Schedule of Pledged Assets, Not Separately Reported on Statement of Financial Position	As part of the Company’s liquidity management strategy, it pledges collateral to secure various financing and other activities that occur during the normal course of business. The following tables present the types of collateral pledged, at December 31, 2020 and 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pledged Assets as of December 31, 2020 ​ ​ ​ ​ ​ ​ AFS HTM ​ ​ ​ ​ ​ ​ Cash ​ Securities (1) ​ Securities (1) ​ Loans (2) ​ Total Public deposits ​ $ — ​ $ 469,864 ​ $ 436,449 ​ $ — ​ $ 906,313 Repurchase agreements ​ — ​ 116,876 ​ — ​ — ​ 116,876 FHLB advances ​ — ​ 52,323 ​ — ​ 4,374,383 ​ 4,426,706 Derivatives ​ 251,047 ​ 785 ​ — ​ — ​ 251,832 Fed Funds ​ ​ — ​ ​ — ​ ​ — ​ ​ 340,847 ​ ​ 340,847 Other purposes ​ — ​ ​ 123,388 ​ ​ 8,634 ​ ​ — ​ ​ 132,022 Total pledged assets ​ $ 251,047 ​ $ 763,236 ​ $ 445,083 ​ $ 4,715,230 ​ $ 6,174,596 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (1) Balance represents market value. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (2) Balance represents book value. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pledged Assets as of December 31, 2019 ​ ​ ​ ​ ​ ​ AFS HTM ​ ​ ​ ​ ​ ​ Cash ​ Securities (1) ​ Securities (1) ​ Loans (2) ​ Total Public deposits ​ $ — ​ $ 467,266 ​ $ 292,096 ​ $ — ​ $ 759,362 Repurchase agreements ​ — ​ 79,299 ​ 7,602 ​ — ​ 86,901 FHLB advances ​ — ​ 63,812 ​ — ​ 3,846,934 ​ 3,910,746 Derivatives ​ 116,839 ​ 1,260 ​ — ​ — ​ 118,099 Fed Funds ​ ​ — ​ ​ — ​ ​ — ​ ​ 292,738 ​ ​ 292,738 Other purposes ​ — ​ 122,358 ​ 10,654 ​ — ​ 133,012 Total pledged assets ​ $ 116,839 ​ $ 733,995 ​ $ 310,352 ​ $ 4,139,672 ​ $ 5,300,858 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (1) Balance represents book value. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (2) Balance represents market value. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

DERIVATIVES (Tables)

DERIVATIVES (Tables)	12 Months Ended
	Dec. 31, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Summary of the Derivatives	The following table summarizes key elements of the Company’s derivative instruments as of December 31, 2020 and 2019, segregated by derivatives that are considered accounting hedges and those that are not (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020 December 31, 2019 ​ ​ ​ ​ ​ Derivative (2) ​ ​ ​ ​ Derivative (2) ​ Notional or ​ ​ ​ ​ Notional or ​ ​ ​ ​ ​ ​ Contractual ​ ​ ​ ​ ​ ​ ​ Contractual ​ ​ ​ ​ ​ ​ ​ ​ Amount (1) ​ Assets ​ Liabilities ​ Amount (1) ​ Assets ​ Liabilities Derivatives designated as accounting hedges: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest rate contracts: ​ ​ ​ ​ ​ ​ ​ ​ ​ Cash flow hedges ​ $ — ​ $ — ​ $ — ​ $ 100,000 ​ $ — ​ $ 1,147 Fair value hedges ​ 124,726 ​ — ​ 12,483 ​ 133,078 ​ 182 ​ 6,256 Derivatives not designated as accounting hedges: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Loan Swaps : ​ ​ ​ ​ ​ ​ Pay fixed - receive floating interest rate swaps ​ 2,356,453 ​ 212 ​ 163,148 ​ 1,575,149 ​ 753 ​ 53,592 Pay floating - receive fixed interest rate swaps ​ 2,356,453 ​ 163,148 ​ 212 ​ 1,575,149 ​ 53,592 ​ 753 (1) Notional amounts are not recorded on the Company’s Consolidated Balance Sheets and are generally used only as a basis on which interest and other payments are determined. (2) Balances represent fair value of derivative financial instruments.
Schedule of Fair Value Hedging Instruments, Statements of Financial Performance and Financial Position, Location	The following table summarizes the carrying value of the Company’s hedged assets in fair value hedges and the associated cumulative basis adjustments included in those carrying values as of December 31, 2020 and 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020 ​ December 31, 2019 ​ ​ ​ Cumulative ​ Cumulative ​ ​ ​ ​ ​ Amount of Basis ​ ​ ​ Amount of Basis ​ ​ ​ ​ ​ Adjustments ​ ​ ​ Adjustments ​ ​ ​ ​ ​ Included in the ​ ​ ​ Included in the ​ ​ Carrying Amount ​ Carrying ​ Carrying Amount ​ Carrying ​ ​ of Hedged ​ Amount of the ​ of Hedged ​ Amount of the ​ ​ Assets/(Liabilities) ​ Hedged ​ Assets/(Liabilities) ​ Hedged ​ ​ Amount (1) Assets/(Liabilities) ​ Amount (1) Assets/(Liabilities) Line items on the Consolidated Balance Sheets in which the hedged item is included: ​ ​ ​ ​ Securities available-for-sale (1) (2) ​ $ 166,413 ​ $ 7,297 ​ $ 206,799 ​ $ 4,072 Loans ​ 74,726 ​ 5,088 ​ 83,078 ​ 1,972 (1) These amounts include the amortized cost basis of the investment securities designated in hedging relationships for which the hedged item is the last layer expected to be remaining at the end of the hedging relationship. For the periods ended December 31, 2020 and 2019, the amortized cost basis of this portfolio was $166 million and $207 million, respectively, and the cumulative basis adjustment associated with this hedge was $ 7.3 million and $4.1 million, respectively. The amount of the designated hedged item at December 31, 2020 and 2019 totaled $50 million. (2) Carrying value represents amortized cost. (3) (4)

STOCKHOLDERS' EQUITY (Tables)

STOCKHOLDERS' EQUITY (Tables)	12 Months Ended
	Dec. 31, 2020
Equity [Abstract]
Change in Accumulated Other Comprehensive Income	The change in accumulated other comprehensive income (loss) for the year ended December 31, 2020 is summarized as follows, net of tax (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Unrealized ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Gains ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (Losses) for ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Unrealized ​ AFS ​ ​ ​ ​ Unrealized ​ ​ ​ ​ ​ Gains (Losses) ​ Securities ​ Change in Fair ​ Gains ​ ​ ​ ​ ​ on AFS ​ Transferred ​ Value of Cash ​ (Losses) ​ ​ ​ ​ ​ Securities ​ to HTM ​ Flow Hedges ​ on BOLI ​ Total Balance - December 31, 2019 ​ $ 37,877 ​ $ 75 ​ $ (782) ​ $ (1,595) ​ $ 35,575 Other comprehensive income (loss): ​ ​ ​ ​ ​ Other comprehensive income (loss) before reclassification ​ 45,996 ​ — ​ (699) ​ (2,098) ​ 43,199 Amounts reclassified from AOCI into earnings ​ (9,712) ​ (20) ​ 1,481 ​ 492 ​ (7,759) Net current period other comprehensive income (loss) ​ 36,284 ​ (20) ​ 782 ​ (1,606) ​ 35,440 Balance - December 31, 2020 ​ $ 74,161 ​ $ 55 ​ $ — ​ $ (3,201) ​ $ 71,015 ​ ​ The change in accumulated other comprehensive income (loss) for the year ended December 31, 2019 is summarized as follows, net of tax (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Unrealized ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Gains ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (Losses) for ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Unrealized ​ AFS ​ ​ ​ ​ Unrealized ​ ​ ​ ​ ​ Gains (Losses) ​ Securities ​ Change in Fair ​ Gains ​ ​ ​ ​ ​ on AFS ​ Transferred ​ Value of Cash ​ (Losses) on ​ ​ ​ ​ ​ Securities ​ to HTM ​ Flow Hedges ​ BOLI ​ Total Balance - December 31, 2018 ​ $ (5,949) ​ $ 95 ​ $ (3,393) ​ $ (1,026) ​ $ (10,273) Other comprehensive income (loss): ​ ​ ​ ​ ​ Other comprehensive income (loss) before reclassification ​ 49,890 ​ — ​ (5,103) ​ (646) ​ 44,141 Amounts reclassified from AOCI into earnings ​ (6,064) ​ (20) ​ 7,714 ​ 77 ​ 1,707 Net current period other comprehensive income (loss) ​ 43,826 ​ (20) ​ 2,611 ​ (569) ​ 45,848 Balance - December 31, 2019 ​ $ 37,877 ​ $ 75 ​ $ (782) ​ $ (1,595) ​ $ 35,575 ​ ​ The change in accumulated other comprehensive income (loss) for the year ended December 31, 2018 is summarized as follows, net of tax (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Unrealized ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Gains ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (Losses) for ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Unrealized ​ AFS ​ ​ ​ ​ Unrealized ​ ​ ​ ​ ​ Gains (Losses) ​ Securities ​ Change in Fair ​ Gains ​ ​ ​ ​ ​ on AFS ​ Transferred ​ Value of Cash ​ (Losses) ​ ​ ​ ​ ​ Securities ​ to HTM ​ Flow Hedges ​ on BOLI ​ Total Balance - December 31, 2017 ​ $ 1,874 ​ $ 2,705 ​ $ (4,361) ​ $ (1,102) ​ $ (884) Transfer of HTM securities to AFS securities (1) ​ 2,785 ​ (2,785) ​ — ​ — ​ — Cumulative effects from adoption of new accounting standards (2) (3) ​ 465 ​ 583 ​ (1,094) ​ — ​ (46) Other comprehensive income (loss): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other comprehensive income (loss) before reclassification ​ (10,711) ​ — ​ 1,087 ​ — ​ (9,624) Amounts reclassified from AOCI into earnings ​ (362) ​ (408) ​ 975 ​ 76 ​ 281 Net current period other comprehensive income (loss) ​ (11,073) ​ (408) ​ 2,062 ​ 76 ​ (9,343) Balance - December 31, 2018 ​ $ (5,949) ​ $ 95 ​ $ (3,393) ​ $ (1,026) ​ $ (10,273) (1) During the second quarter of 2018, the Company adopted ASU No. 2017-12, "Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities". As part of this adoption, the Company made a one-time election to transfer eligible HTM securities to the AFS category. The transfer of these securities resulted in an increase of approximately $400,000 to AOCI and is included as unrealized gains (losses) on AFS securities above. ​ (2) During the second quarter of 2018, the Company adopted ASU No. 2018-02 "Income Statement - Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income." As part of this adoption, the Company reclassified approximately $107,000 of these amounts from AOCI to retained earnings. ​ (3) During the first quarter of 2018, the Company adopted ASU No. 2016-01 "Financial Instruments - Overall (Subtopic 825-10) Recognition and Measurement of Financial Assets and Financial Liabilities." As part of this adoption, the Company reclassified approximately $61,000 of these amounts from AOCI to retained earnings.

REGULATORY MATTERS AND CAPITAL

REGULATORY MATTERS AND CAPITAL (Tables)	12 Months Ended
	Dec. 31, 2020
Regulatory Capital Requirements [Abstract]
Schedule of Bank Capital Amount and Ratio	The Company and the Bank’s capital amounts and ratios are also presented in the following table at December 31, 2020 and 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Required in Order to Be ​ ​ ​ ​ ​ ​ ​ Required for Capital ​ Well Capitalized Under ​ ​ Actual ​ Adequacy Purposes ​ PCA ​ Amount Ratio Amount Ratio Amount Ratio As of December 31, 2020 ​ ​ ​ Common equity Tier 1 capital to risk weighted assets: ​ ​ ​ Consolidated ​ $ 1,512,507 10.26 % $ 663,380 4.50 % NA NA ​ Atlantic Union Bank ​ 1,824,693 12.42 % 661,121 4.50 % 954,952 6.50 % Tier 1 capital to risk weighted assets: ​ ​ ​ Consolidated ​ 1,678,863 11.39 % 884,388 6.00 % NA NA ​ Atlantic Union Bank ​ 1,824,693 12.42 % 881,494 6.00 % 1,175,326 8.00 % Total capital to risk weighted assets: ​ ​ ​ Consolidated ​ 2,063,356 14.00 % 1,179,061 8.00 % NA NA ​ Atlantic Union Bank ​ 1,924,016 13.09 % 1,175,869 8.00 % 1,469,837 10.00 % Tier 1 capital to average adjusted assets: ​ ​ ​ Consolidated ​ 1,678,863 8.95 % 750,330 4.00 % NA NA ​ Atlantic Union Bank ​ 1,824,693 9.75 % 748,592 4.00 % 935,740 5.00 % As of December 31, 2019 ​ ​ ​ Common equity Tier 1 capital to risk weighted assets: ​ ​ ​ Consolidated ​ $ 1,437,908 10.24 % $ 631,893 4.50 % NA NA ​ Atlantic Union Bank ​ 1,704,426 12.18 % 629,714 4.50 % 909,587 6.50 % Tier 1 capital to risk weighted assets: ​ ​ ​ Consolidated ​ 1,437,908 10.24 % 842,524 6.00 % NA NA ​ Atlantic Union Bank ​ 1,704,426 12.18 % 839,619 6.00 % 1,119,492 8.00 % Total capital to risk weighted assets: ​ ​ ​ Consolidated ​ 1,773,835 12.63 % 1,123,569 8.00 % NA NA ​ Atlantic Union Bank ​ 1,747,620 12.48 % 1,120,269 8.00 % 1,400,337 10.00 % Tier 1 capital to average adjusted assets: ​ ​ ​ Consolidated ​ 1,437,908 8.79 % 654,338 4.00 % NA NA ​ Atlantic Union Bank ​ 1,704,426 10.45 % 652,412 4.00 % 815,515 5.00 %

FAIR VALUE MEASUREMENTS (Tables

FAIR VALUE MEASUREMENTS (Tables)	12 Months Ended
	Dec. 31, 2020
Fair Value Disclosures [Abstract]
Schedule of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis	The following table presents the balances of financial assets and liabilities measured at fair value on a recurring basis at December 31, 2020 and 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurements at December 31, 2020 using ​ ​ ​ Significant ​ ​ ​ ​ ​ ​ Quoted Prices in ​ Other ​ Significant ​ ​ ​ ​ ​ Active Markets for ​ Observable ​ Unobservable ​ ​ ​ ​ ​ Identical Assets ​ Inputs ​ Inputs ​ ​ ​ ​ ​ Level 1 ​ Level 2 ​ Level 3 ​ Balance ASSETS ​ ​ ​ ​ ​ AFS securities: ​ ​ ​ ​ ​ U.S. government and agency securities ​ $ — ​ $ 13,394 ​ $ — ​ $ 13,394 Obligations of states and political subdivisions ​ — ​ 837,326 ​ — ​ 837,326 Corporate and other bonds (1) ​ — ​ 151,078 ​ — ​ 151,078 Mortgage-backed securities ​ — ​ 1,536,996 ​ — ​ 1,536,996 Other securities ​ — ​ 1,625 ​ — ​ 1,625 Loans held for sale ​ — ​ 96,742 ​ — ​ 96,742 Derivatives: ​ ​ ​ ​ Interest rate swap ​ — ​ 163,360 ​ — ​ 163,360 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ LIABILITIES ​ ​ ​ ​ Derivatives: ​ ​ ​ ​ Interest rate swap ​ $ — ​ $ 163,360 ​ $ — ​ $ 163,360 Fair value hedges ​ — ​ 12,483 ​ — ​ 12,483 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurements at December 31, 2019 using ​ ​ ​ Significant ​ ​ ​ ​ ​ ​ Quoted Prices in ​ Other ​ Significant ​ ​ ​ ​ ​ Active Markets for ​ Observable ​ Unobservable ​ ​ ​ ​ ​ Identical Assets ​ Inputs ​ Inputs ​ ​ ​ ​ ​ Level 1 ​ Level 2 ​ Level 3 ​ Balance ASSETS ​ ​ ​ ​ ​ AFS securities: ​ ​ ​ ​ ​ U.S. government and agency securities ​ $ — ​ $ 21,320 ​ $ — ​ $ 21,320 Obligations of states and political subdivisions ​ ​ — ​ ​ 447,091 ​ ​ — ​ ​ 447,091 Corporate and other bonds (1) ​ — ​ 135,959 ​ — ​ 135,959 Mortgage-backed securities ​ — ​ 1,337,996 ​ — ​ 1,337,996 Other securities ​ — ​ 3,079 ​ — ​ 3,079 Loans held for sale ​ ​ — ​ ​ 55,405 ​ ​ — ​ ​ 55,405 Derivatives: ​ ​ ​ ​ Interest rate swap ​ — ​ 54,345 ​ — ​ 54,345 Fair value hedges ​ — ​ 182 ​ — ​ 182 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ LIABILITIES ​ ​ ​ ​ Derivatives: ​ ​ ​ ​ Interest rate swap ​ $ — ​ $ 54,345 ​ $ — ​ $ 54,345 Cash flow hedges ​ — ​ 1,147 ​ — ​ 1,147 Fair value hedges ​ — ​ 6,256 ​ — ​ 6,256 (1) Other bonds include asset-backed securities.
Carrying Values and Estimated Fair Values of the Company's Financial Instruments	The carrying values and estimated fair values of the Company’s financial instruments as of December 31, 2020 and 2019 are as follows (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurements at December 31, 2020 using ​ ​ ​ Quoted Prices Significant ​ ​ ​ ​ ​ ​ ​ ​ ​ in Active ​ Other ​ Significant ​ ​ ​ ​ ​ ​ ​ ​ Markets for ​ Observable ​ Unobservable ​ Total Fair ​ ​ ​ ​ ​ Identical Assets ​ Inputs ​ Inputs ​ Value ​ ​ Carrying ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Value ​ Level 1 ​ Level 2 ​ Level 3 ​ Balance ASSETS ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Cash and cash equivalents ​ $ 493,294 ​ $ 493,294 ​ $ — ​ $ — ​ $ 493,294 AFS securities ​ 2,540,419 ​ — ​ 2,540,419 ​ — ​ 2,540,419 HTM securities ​ 544,851 ​ — ​ 606,496 ​ 13,269 ​ 619,765 Restricted stock ​ 94,782 ​ — ​ 94,782 ​ — ​ 94,782 Loans held for sale ​ 96,742 ​ — ​ 96,742 ​ — ​ 96,742 Net loans ​ 13,860,774 ​ — ​ — ​ 13,710,640 ​ 13,710,640 Derivatives: ​ ​ ​ ​ ​ Interest rate swap ​ 163,360 ​ — ​ 163,360 ​ — ​ 163,360 Accrued interest receivable ​ 75,757 ​ — ​ 75,757 ​ — ​ 75,757 BOLI ​ 326,892 ​ — ​ 326,892 ​ — ​ 326,892 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ LIABILITIES ​ ​ ​ ​ ​ Deposits ​ $ 15,722,765 ​ $ — ​ $ 15,763,991 ​ $ — ​ $ 15,763,991 Borrowings ​ 840,717 ​ — ​ 821,516 ​ — ​ 821,516 Accrued interest payable ​ 2,516 ​ — ​ 2,516 ​ — ​ 2,516 Derivatives: ​ ​ ​ ​ ​ Interest rate swap ​ 163,360 ​ — ​ 163,360 ​ — ​ 163,360 Fair value hedges ​ 12,483 ​ — ​ 12,483 ​ — ​ 12,483 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurements at December 31, 2019 using ​ ​ ​ ​ ​ Quoted Prices ​ Significant ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ in Active ​ Other ​ Significant ​ ​ ​ ​ ​ ​ ​ ​ Markets for ​ Observable ​ Unobservable ​ Total Fair ​ ​ ​ ​ ​ Identical Assets ​ Inputs ​ Inputs ​ Value ​ ​ Carrying ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Value ​ Level 1 ​ Level 2 ​ Level 3 ​ Balance ASSETS ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Cash and cash equivalents ​ $ 436,032 ​ $ 436,032 ​ $ — ​ $ — ​ $ 436,032 AFS securities ​ 1,945,445 ​ — ​ 1,945,445 ​ — ​ 1,945,445 HTM securities ​ 555,144 ​ — ​ 585,820 ​ 17,683 ​ 603,503 Restricted stock ​ 130,848 ​ — ​ 130,848 ​ — ​ 130,848 Loans held for sale ​ ​ 55,405 ​ ​ — ​ 55,405 ​ — ​ ​ 55,405 Net loans ​ 12,568,642 ​ — ​ — ​ 12,449,505 ​ 12,449,505 Derivatives: ​ ​ ​ ​ ​ Interest rate swap ​ 54,345 ​ — ​ 54,345 ​ — ​ 54,345 Fair value hedges ​ 182 ​ — ​ 182 ​ — ​ 182 Accrued interest receivable ​ 52,721 ​ — ​ 52,721 ​ — ​ 52,721 BOLI ​ 322,917 ​ — ​ 322,917 ​ — ​ 322,917 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ LIABILITIES ​ ​ ​ ​ ​ Deposits ​ $ 13,304,981 ​ $ — ​ $ 13,349,943 ​ $ — ​ $ 13,349,943 Borrowings ​ 1,513,748 ​ — ​ 1,479,606 ​ — ​ 1,479,606 Accrued interest payable ​ 6,108 ​ — ​ 6,108 ​ — ​ 6,108 Derivatives: ​ ​ ​ ​ ​ Interest rate swap ​ 54,345 ​ — ​ 54,345 ​ — ​ 54,345 Cash flow hedges ​ 1,147 ​ — ​ 1,147 ​ — ​ 1,147 Fair value hedges ​ 6,256 ​ — ​ 6,256 ​ — ​ 6,256

REVENUE (Tables)

REVENUE (Tables)	12 Months Ended
	Dec. 31, 2020
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue	Noninterest income disaggregated by major source for the years ended December 31, 2020, 2019, and 2018 consisted of the following (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020 ​ 2019 ​ 2018 Noninterest income: ​ ​ ​ Deposit Service Charges (1) ​ ​ ​ Overdraft fees ​ $ 17,792 ​ $ 24,092 ​ $ 21,052 Maintenance fees & other ​ 7,459 ​ 6,110 ​ 4,387 Other service charges, commissions, and fees (1) ​ 6,292 ​ 6,423 ​ 5,603 Interchange fees (1) ​ 7,184 ​ 14,619 ​ 18,803 Fiduciary and asset management fees (1) ​ ​ ​ ​ Trust asset management fees ​ 10,804 ​ 9,141 ​ 5,536 Registered advisor management fees ​ 8,657 ​ 10,107 ​ 6,589 Brokerage management fees ​ 4,189 ​ 4,117 ​ 4,025 Mortgage banking income ​ 25,857 ​ 10,303 ​ — Gains on securities transactions ​ 12,294 ​ 7,675 ​ 383 Bank owned life insurance income ​ 9,554 ​ 8,311 ​ 7,198 Loan-related interest rate swap fees ​ 15,306 ​ 14,126 ​ 3,554 Gain on Shore Premier sale ​ — ​ — ​ 19,966 Other operating income (2)(3) ​ 6,098 ​ 17,791 ​ 7,145 Total noninterest income (4) ​ $ 131,486 ​ $ 132,815 ​ $ 104,241 (1) Income within scope of Topic 606. (2) Includes income within the scope of Topic 606 of $3.5 million, $4.0 million and $4.4 million for the years ended December 31, 2020, 2019, and 2018, respectively. The remaining balance is outside the scope of Topic 606. (3) For the year ended December 31, 2019, the remaining balance outside the scope of Topic 606 includes $9.8 million in life insurance proceeds related to a Xenith-acquired loan that had been charged off prior to the Company’s acquisition of Xenith. (4) Noninterest income for the discontinued mortgage segment is reported in Note 19 “Segment Reporting & Discontinued Operations.”

EMPLOYEE BENEFITS AND STOCK B_2

EMPLOYEE BENEFITS AND STOCK BASED COMPENSATION (Tables)	12 Months Ended
	Dec. 31, 2020
Employee Benefits and Share-based Compensation, Noncash [Abstract]
Payment Made for Employee Benefit Plans	The following 401(k) Plan match and other discretionary contributions were made to the Company’s employees, in accordance with the plans described above, in 2020, 2019, and 2018 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020 2019 2018 401(k) Plan ​ $ 6,265 ​ $ 5,550 ​ $ 4,592 ESOP ​ 1,000 ​ 1,163 ​ 1,005 Cash ​ 697 ​ 780 ​ 1,509 Total ​ $ 7,962 ​ $ 7,493 ​ $ 7,106
Schedule of Recognized Stock-Based Compensation Expense	For the years ended December 31, 2020, 2019, and 2018, the Company recognized stock-based compensation expense, which is included in salaries and benefits expense on the Company’s Consolidated Statements of Income (dollars in thousands, except per share data) as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, ​ 2020 2019 ​ 2018 Stock-based compensation expense ​ $ 9,258 ​ $ 8,332 ​ $ 6,132 Reduction of income tax expense ​ 1,944 ​ 1,750 ​ 1,287 Per share compensation cost ​ $ 0.09 ​ $ 0.08 ​ $ 0.07
Summary of Stock Option Activity	The following table summarizes the stock option activity during the year ended December 31, 2020: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted ​ ​ ​ ​ ​ ​ Weighted ​ Average ​ ​ ​ ​ ​ Stock ​ Average ​ Remaining ​ Aggregate ​ ​ Options ​ Exercise ​ Contractual ​ Intrinsic ​ ​ (shares) ​ Price ​ Life ​ Value Outstanding as of December 31, 2019 422,138 ​ $ 32.48 ​ Granted — ​ — ​ Exercised (46,278) ​ 22.04 ​ Forfeited (4,582) ​ 31.83 ​ Expired (22,618) ​ 33.40 ​ Outstanding as of December 31, 2020 348,660 ​ 33.81 1.76 ​ $ 798,340 Exercisable as of December 31, 2020 317,237 ​ 34.00 1.63 ​ 764,501
Summary of Nonvested Stock Activity	The following table summarizes the restricted stock activity for the year ended December 31, 2020: ​ ​ ​ ​ ​ ​ ​ ​ Weighted ​ ​ Number of ​ Average ​ ​ Shares of ​ Grant-Date Fair ​ ​ RSAs ​ Value Unvested as of December 31, 2019 431,642 ​ $ 34.90 Granted 208,514 ​ 33.63 Net settle for taxes (55,336) ​ 36.40 Vested (161,445) ​ 32.09 Forfeited (16,868) ​ 34.19 Unvested as of December 31, 2020 406,507 ​ 35.61
Summary of Performance Stock Activity	The Plan permits the granting of PSUs. PSUs are granted to certain employees at no cost to the recipient and are subject to vesting based on achieving certain performance metrics; the grant of PSUs is subject to approval by the Company’s Compensation Committee at its sole discretion. PSUs may be paid in cash or shares of common stock or a combination thereof. Holders of PSUs have no right to vote the shares represented by the units. In 2020, the PSUs awarded were market based awards with the number of PSUs ultimately earned based on the Company’s total shareholder return as measured over the performance period. ​ ​ ​ ​ ​ ​ ​ ​ Number of Weighted Average ​ ​ Shares of ​ Grant- ​ ​ PSUs ​ Date Fair Value Unvested as of December 31, 2019 144,709 ​ $ 37.24 Granted 108,302 ​ 33.99 Net settle for taxes (14,186) ​ 44.72 Vested (38,922) ​ 39.80 Forfeited (2,093) ​ 32.50 Unvested as of December 31, 2020 197,810 ​ 34.84
Schedule of Performance Stock Units Valuation Assumptions	During years ended December 31, 2020, 2019 and 2018 PSUs were awarded with a market based component based on total shareholder return. The fair value of each PSU granted is estimated on the date of grant using the Monte Carlo simulation lattice model that uses the assumptions noted in the following table: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020 (5) 2019 (5) 2018 (5) Dividend yield (1) 2.83 % 2.57 % 2.25 % Expected life in years (2) 2.86 2.86 2.86 ​ Expected volatility (3) 24.33 % 24.04 % 23.47 % Risk-free interest rate (4) 1.35 % 2.48 % 2.38 % (1) Calculated as the ratio of the current dividend paid per the stock price on the date of grant. (2) Represents the remaining performance period as of the grant date. (3) Based on the historical volatility for the period commensurate with the expected life of the PSUs. (4) Based upon the zero-coupon U.S. Treasury rate commensurate with the expected life of the PSUs on the grant date. (5) Assumptions disclosed represent those used in the primary annual issuance.
Estimated Unamortized Compensation Expense Recognized in Future	The estimated unamortized compensation expense, net of estimated forfeitures, related to, restricted stock, performance stock and stock options issued and outstanding as of December 31, 2020 that will be recognized in future periods is as follows (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Restricted Performance ​ ​ Stock ​ ​ ​ ​ Stock ​ Stock ​ ​ Options ​ Total 2021 ​ $ 4,997 ​ $ 1,844 ​ $ 67 ​ $ 6,908 2022 ​ 2,579 ​ 957 ​ ​ 66 ​ 3,602 2023 ​ 434 ​ — ​ ​ 4 ​ 438 2024 ​ 42 ​ — ​ ​ — ​ 42 Total ​ $ 8,052 ​ $ 2,801 ​ $ 137 ​ $ 10,990

INCOME TAXES (Tables)

INCOME TAXES (Tables)	12 Months Ended
	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Schedule of Deferred Tax Assets and Liabilities	Net deferred tax assets and liabilities consist of the following components as of December 31, 2020 and 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ 2020 2019 Deferred tax assets: ​ ​ Credit losses ​ $ 48,505 ​ $ 18,938 Benefit plans ​ 3,332 ​ 3,507 Acquisition accounting ​ 10,038 ​ 16,021 Lease right-of-use asset ​ ​ 14,893 ​ ​ 13,507 Stock grants ​ 2,305 ​ 2,032 OREO ​ 2,971 ​ 3,295 Securities available for sale ​ 1,017 ​ 1,169 Net operating losses ​ 47,463 ​ 55,023 Nonaccrual loans ​ 2,011 ​ 3,243 Other ​ 7,287 ​ 4,227 Total deferred tax assets ​ $ 139,822 ​ $ 120,962 Deferred tax liabilities: ​ ​ Acquisition accounting ​ $ 16,271 ​ $ 19,815 Lease right-of-use liability ​ ​ 12,012 ​ ​ 11,191 Premises and equipment ​ 19,066 ​ 6,696 Securities available for sale ​ 19,714 ​ 10,069 Other ​ 674 ​ 511 Total deferred tax liabilities ​ 67,737 ​ 48,282 Net deferred tax asset ​ $ 72,085 ​ $ 72,680
Provision for Income Taxes Charged to Operations	The provision for income taxes charged to continuing operations for the years ended December 31, 2020, 2019, and 2018 consists of the following (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020 2019 2018 Current tax expense ​ $ 25,376 ​ $ 22,500 ​ $ 12,114 Deferred tax expense ​ 2,690 ​ 15,057 ​ 17,902 Income tax expense ​ $ 28,066 ​ $ 37,557 ​ $ 30,016 ​ The income tax expense differs from the amount of income tax determined by applying the U.S. federal income tax rate to pre-tax income for the years ended December 31, 2020, 2019, and 2018, due to the following (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020 2019 2018 Computed "expected" tax expense ​ $ 39,122 ​ $ 48,564 ​ $ 37,680 (Decrease) in taxes resulting from: ​ ​ ​ Tax-exempt interest income, net ​ (8,844) ​ (8,259) ​ (5,188) State income tax benefit ​ ​ (310) ​ ​ (1,078) ​ ​ (1,133) Other tax exempt income, net ​ (1,902) ​ (1,670) ​ (1,343) Income tax expense ​ $ 28,066 ​ $ 37,557 ​ $ 30,016
Schedule of Income Tax Expense, Difference in Income Tax Rate to Pretax Income	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020 2019 2018 Current tax expense ​ $ 25,376 ​ $ 22,500 ​ $ 12,114 Deferred tax expense ​ 2,690 ​ 15,057 ​ 17,902 Income tax expense ​ $ 28,066 ​ $ 37,557 ​ $ 30,016

EARNINGS PER SHARE (Tables)

EARNINGS PER SHARE (Tables)	12 Months Ended
	Dec. 31, 2020
Earnings Per Share [Abstract]
Reconciliation of the Denominators of the Basic and Diluted EPS Computations	The following table presents EPS from continuing operations, discontinued operations and total net income available to common shareholders for the years ended December 31, (in thousands except per share data): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020 2019 2018 Net Income: ​ ​ ​ Income from continuing operations ​ $ 158,228 ​ $ 193,698 ​ $ 149,413 Income (loss) from discontinued operations ​ — ​ (170) ​ (3,165) Net income ​ ​ 158,228 ​ ​ 193,528 ​ ​ 146,248 Preferred Stock Dividends ​ ​ 5,658 ​ ​ — ​ ​ — Net income available to common shareholders ​ $ 152,570 ​ $ 193,528 ​ $ 146,248 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted average shares outstanding, basic ​ 78,859 ​ 80,201 ​ 65,859 Dilutive effect of stock awards and warrants ​ 17 ​ 63 ​ 50 Weighted average shares outstanding, diluted ​ 78,876 ​ 80,264 ​ 65,909 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Basic EPS: ​ ​ ​ EPS from continuing operations ​ $ 1.93 ​ $ 2.41 ​ $ 2.27 EPS from discontinued operations ​ ​ — ​ ​ — ​ ​ (0.05) EPS available to common shareholders ​ $ 1.93 ​ $ 2.41 ​ $ 2.22 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Diluted EPS: ​ ​ ​ EPS from continuing operations ​ $ 1.93 ​ $ 2.41 ​ $ 2.27 EPS from discontinued operations ​ ​ — ​ ​ — ​ ​ (0.05) EPS available to common shareholders ​ $ 1.93 ​ $ 2.41 ​ $ 2.22

SEGMENT REPORTING & DISCONTIN_2

SEGMENT REPORTING & DISCONTINUED OPERATIONS (Tables)	12 Months Ended
	Dec. 31, 2020
Segment Reporting [Abstract]
Information About Reportable Segments and Reconciliation	The following table presents summarized operating results of the discontinued mortgage segment at December 31, 2019 and 2018 respectively (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2019 2018 Net interest income ​ ​ $ — ​ $ 850 Provision for credit losses ​ ​ — ​ (185) Net interest income after provision for credit losses ​ ​ — ​ 1,035 Noninterest income ​ ​ 1 ​ 3,882 Noninterest expenses ​ ​ 231 ​ 9,197 Income before income taxes ​ ​ (230) ​ (4,280) Income tax expense (benefit) ​ ​ (60) ​ (1,115) Net income (loss) on discontinued operations ​ ​ $ (170) ​ $ (3,165)

PARENT COMPANY FINANCIAL INFO_2

PARENT COMPANY FINANCIAL INFORMATION (Tables) - Parent Company	12 Months Ended
	Dec. 31, 2020
Financial Information for the Parent Company - Balance Sheets	Financial information for the Parent Company is as follows: PARENT COMPANY CONDENSED BALANCE SHEETS AS OF DECEMBER 31, 2020 and 2019 (Dollars in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020 2019 ASSETS ​ ​ Cash ​ $ 116,748 ​ $ 5,283 Premises and equipment, net ​ 10,435 ​ 10,568 Other assets ​ 30,429 ​ 27,438 Investment in subsidiaries ​ 2,858,608 ​ 2,786,842 Total assets ​ $ 3,016,220 ​ $ 2,830,131 LIABILITIES AND STOCKHOLDERS' EQUITY ​ ​ Long-term borrowings ​ $ 148,806 ​ $ 157,155 Trust preferred capital notes ​ 141,023 ​ 140,237 Other liabilities ​ 17,901 ​ 19,637 Total liabilities ​ 307,730 ​ 317,029 Total stockholders' equity ​ 2,708,490 ​ 2,513,102 Total liabilities and stockholders' equity ​ $ 3,016,220 ​ $ 2,830,131
Financial Information for the Parent Company - Statements of Income and Comprehensive Income	PARENT COMPANY CONDENSED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME YEARS ENDED DECEMBER 31, 2020, 2019, and 2018 (Dollars in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020 2019 ​ 2018 Income: ​ ​ ​ Interest and dividend income ​ $ — ​ $ 3 ​ $ — Dividends received from subsidiaries ​ 97,880 ​ 160,033 ​ 50,750 Other operating income ​ 1,338 ​ 1,484 ​ 2,719 Total income ​ 99,218 ​ 161,520 ​ 53,469 Expenses: ​ ​ ​ Interest expense ​ 13,506 ​ 15,935 ​ 15,253 Other operating expenses ​ 8,249 ​ 11,434 ​ 13,782 Total expenses ​ 21,755 ​ 27,369 ​ 29,035 Income before income taxes and equity in undistributed net income from subsidiaries ​ 77,463 ​ 134,151 ​ 24,434 Income tax benefit ​ (5,439) ​ (6,499) ​ (6,176) Equity in undistributed net income from subsidiaries ​ 75,326 ​ 52,878 ​ 115,638 Net income ​ $ 158,228 ​ $ 193,528 ​ $ 146,248 Comprehensive income ​ $ 193,668 ​ $ 239,376 ​ $ 136,905
Financial Information for the Parent Company - Statements of Cash Flows	PARENT COMPANY CONDENSED STATEMENTS OF CASH FLOWS YEARS ENDED DECEMBER 31, 2020, 2019, and 2018 (Dollars in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020 2019 2018 Operating activities: ​ ​ ​ Net income ​ $ 158,228 ​ $ 193,528 ​ $ 146,248 Adjustments to reconcile net income to net cash provided by operating activities: ​ ​ ​ Equity in undistributed net income of subsidiaries ​ (75,326) ​ (52,878) ​ (115,638) Depreciation of premises and equipment ​ 439 ​ 424 ​ 424 Acquisition accounting amortization, net ​ 735 ​ 662 ​ 636 Gain on sale of investment ​ — ​ — ​ (1,416) Issuance of common stock for services ​ 804 ​ 910 ​ 914 Net increase in other assets ​ (3,005) ​ (3,256) ​ (584) Net increase (decrease) in other liabilities ​ 10,038 ​ 4,964 ​ (4,159) Net cash provided by (used in) operating activities ​ 91,913 ​ 144,354 ​ 26,425 Investing activities: ​ ​ ​ Net increase in premises and equipment ​ (306) ​ (355) ​ — Proceeds from sale of investment ​ — ​ — ​ 3,761 Increase in equity method investments ​ ​ (2,353) ​ ​ — ​ ​ — Cash paid in acquisitions ​ ​ — ​ ​ (12) ​ ​ — Cash received in acquisitions ​ — ​ 21,553 ​ 25,976 Net cash provided by (used in) investing activities ​ (2,659) ​ 21,186 ​ 29,737 Financing activities: ​ ​ ​ Net increase (decrease) in short-term borrowings ​ — ​ (5,000) ​ 5,000 Repayments of long-term borrowings ​ (8,500) ​ — ​ — Cash dividends paid - common stock ​ (78,860) ​ (78,345) ​ (58,001) Cash dividends paid - preferred stock ​ ​ (5,658) ​ ​ — ​ ​ — Cancellation of warrants ​ — ​ — ​ (1,530) Issuance (repurchase) of common stock ​ (48,866) ​ (78,292) ​ 2,347 Issuance of preferred stock, net ​ ​ 166,356 ​ ​ — ​ ​ — Vesting of restricted stock, net of shares held for taxes ​ (2,261) ​ (2,301) ​ (2,908) Net cash provided by (used in) financing activities ​ 22,211 ​ (163,938) ​ (55,092) Increase (decrease) in cash and cash equivalents ​ 111,465 ​ 1,602 ​ 1,070 Cash, cash equivalents and restricted cash at beginning of the period ​ 5,283 ​ 3,681 ​ 2,611 Cash, cash equivalents and restricted cash at end of the period ​ $ 116,748 ​ $ 5,283 ​ $ 3,681 Supplemental schedule of noncash investing and financing activities ​ ​ ​ Issuance of common stock in exchange for net assets in acquisition ​ $ — ​ $ 499,974 ​ $ 794,809 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Transactions related to bank acquisition ​ ​ ​ Assets acquired ​ — ​ 509,075 ​ 859,176 Liabilities assumed ​ — ​ 9,089 ​ 64,367

SUMMARY OF SIGNIFICANT ACCOUN_3

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Narrative) (Details)	Apr. 30, 2020USD ($)	Feb. 01, 2019USD ($)shares	Dec. 31, 2020USD ($)itemloanshares	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)
Accounting Policies [Line Items]
Number of bank branches | item			134
Number of ATM's | item			155
Accruals for uncertain tax positions			$ 0	$ 0
Impairment charges for goodwill	$ 0		0
Available for sale securities, allowance for credit losses			0
Goodwill			935,560,000	935,560,000
Loans held for investment, accrued interest receivable			56,700,000
HTM securities, Accrued interest receivable			6,800,000
AFS securities, accrued interest receivable			11,900,000
Cash paid in acquisition			0	12,000	$ 14,304,000
Liabilities for post retirement benefits payable to other beneficiaries			$ 13,800,000	$ 12,100,000
Stock options granted | shares			0
HTM securities, additional reserve for allowance for credit losses			$ 0
Minimum
Accounting Policies [Line Items]
Intangible assets, amortization period (years)			4 years
Estimated useful life of bank premises			3 years
Percentage of fair value of the derivative instruments for the hedge to be highly effective			80.00%
Maximum
Accounting Policies [Line Items]
Intangible assets, amortization period (years)			10 years
Estimated useful life of bank premises			50 years
Percentage of fair value of the derivative instruments for the hedge to be highly effective			125.00%
Access National Bank
Accounting Policies [Line Items]
Number of shares equivalent to each share of acquired entity | shares		0.75
Company's common shares issued | shares		15,842,026
Cash paid in acquisition		$ 12,000
Paycheck Protection Program (PPP)
Accounting Policies [Line Items]
Loans issued under the CARES Act			$ 1,700,000,000
Loans, recorded investment under the CARES Act			1,200,000,000
Loan origination fees Under the CARES Act			$ 17,600,000
Number of loans forgiven under the CARES Act | loan			3,100
Loans forgiven under the CARES Act			$ 429,300,000
Paycheck Protection Program (PPP) | Minimum
Accounting Policies [Line Items]
Number of loans processed under the CARES Act | loan			11,000

SUMMARY OF SIGNIFICANT ACCOUN_4

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Affordable Housing Entities (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Affordable Housing Projects [Abstract]
Affordable housing projects, recognized amortization	$ 3	$ 1.9
Affordable housing projects, tax credits	3.6	2.9
Affordable housing projects, investment amount	38.5	29.6
Affordable housing projects, liability	$ 19.1	$ 12

SUMMARY OF SIGNIFICANT ACCOUN_5

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - New Accounting Standards (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Jan. 01, 2020	Dec. 31, 2019	Jan. 01, 2019	Dec. 31, 2018	Dec. 31, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Lease liabilities	$ 58,901		$ 66,052
Operating lease, right-of-use asset	48,051		54,941
Allowance for credit losses on loans	160,540	$ 89,778	42,294		$ 41,045	$ 38,208
Available for sale securities, allowance for credit losses	0
Impact of adoption of new guidance	616,052		$ 581,395
Increase in allowance for credit losses on Purchased with Credit Deterioration (PCD) assets	2,386
Accounting Standards Update 2016-13
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for credit losses		2,400
Accounting Standards Update 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Lease liabilities				$ 53,200
Operating lease, right-of-use asset				$ 48,900
Restatement Adjustment | Accounting Standards Update 2016-13
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for credit losses on loans		$ 47,484
Cumulative Effect, Period of Adoption, Adjustment | Accounting Standards Update 2016-13
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Impact of adoption of new guidance	(39,100)
Cumulative Effect, Period of Adoption, Adjustment | Accounting Standards Update 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Impact of adoption of new guidance	$ (1,100)

SUMMARY OF SIGNIFICANT ACCOUN_6

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - New Accounting Standards (Illustration of the Impact of ASC 326) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Jan. 01, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Item Effected [Line Items]
Allowance for credit losses on loans	$ 160,540	$ 89,778	$ 42,294	$ 41,045	$ 38,208
Total Allowance for credit losses	160,540	94,838	42,294
Previous Accounting Guidance
Item Effected [Line Items]
Allowance for credit losses on loans			42,294
Total Allowance for credit losses			43,194
Accounting Standards Update 2016-13 | Restatement Adjustment
Item Effected [Line Items]
Allowance for credit losses on loans		47,484
Total Allowance for credit losses		51,644
Commercial Portfolio
Item Effected [Line Items]
Allowance for credit losses on loans	117,403	37,125	30,941
Commercial Portfolio | Previous Accounting Guidance
Item Effected [Line Items]
Allowance for credit losses on loans			30,941
Commercial Portfolio | Accounting Standards Update 2016-13 | Restatement Adjustment
Item Effected [Line Items]
Allowance for credit losses on loans		6,184
Consumer Portfolio
Item Effected [Line Items]
Allowance for credit losses on loans	$ 43,137	52,653	11,353
Consumer Portfolio | Previous Accounting Guidance
Item Effected [Line Items]
Allowance for credit losses on loans			11,353
Consumer Portfolio | Accounting Standards Update 2016-13 | Restatement Adjustment
Item Effected [Line Items]
Allowance for credit losses on loans		41,300
Unfunded Commitments
Item Effected [Line Items]
Total Allowance for credit losses		5,060
Unfunded Commitments | Previous Accounting Guidance
Item Effected [Line Items]
Total Allowance for credit losses			$ 900
Unfunded Commitments | Accounting Standards Update 2016-13 | Restatement Adjustment
Item Effected [Line Items]
Total Allowance for credit losses		$ 4,160

ACQUISITIONS (Narrative) (Detai

ACQUISITIONS (Narrative) (Details) - USD ($)	Feb. 01, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Business Acquisition [Line Items]
Cash paid in acquisition		$ 0	$ 12,000	$ 14,304,000
Merger-related costs		0	27,824,000	$ 39,728,000
Access National Bank
Business Acquisition [Line Items]
Number of shares equivalent to each share of acquired entity	0.75
Company's common shares issued	15,842,026
Consideration transferred, fair value	$ 500,000,000
Cash paid in acquisition	$ 12,000
Merger-related costs		$ 0	$ 26,200,000

SECURITIES (Narrative) (Details

SECURITIES (Narrative) (Details)	12 Months Ended
	Dec. 31, 2020USD ($)security	Dec. 31, 2019USD ($)security
Schedule of Investments [Line Items]
Available for sale securities that had been in a continuous loss position for more than 12 months	$ 17,600,000	$ 75,000,000
Available-for-sale securities, continuous unrealized loss position, 12 months or longer, accumulated loss	101,000	696,000
AFS securities in an unrealized loss, credit related impairment	0	0
Available for sale securities, allowance for credit losses	0
HTM securities past due or non accrual	0
Available for sale securities past due or non-accrual	0
HTM securities, additional reserve for allowance for credit losses	0
Restricted equity securities consist of Federal Reserve Bank stock	67,000,000
Federal Home Loan Bank Stock	$ 27,800,000	$ 63,900,000
Available-for-sale Securities
Schedule of Investments [Line Items]
Available for sale securities that had been in a continuous loss position for more than 12 months, Number of issues | security	15	47
Non-agency collateralized mortgage obligations
Schedule of Investments [Line Items]
SSFA rating percentage	20.00%

SECURITIES (Amortized Cost, Gro

SECURITIES (Amortized Cost, Gross Unrealized Gains and Losses, and Estimated Fair Values of Investment Securities) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Debt Securities, Available-for-sale Securities, Amortized Cost Basis [Abstract]
Total AFS securities	$ 2,439,247	$ 1,893,427
Gross Unrealized Gains	103,512	53,918
Gross Unrealized (Losses)	(2,340)	(1,900)
Total AFS securities, Estimated Fair Value	2,540,419	1,945,445
U.S. government and agency securities
Debt Securities, Available-for-sale Securities, Amortized Cost Basis [Abstract]
Total AFS securities	13,009	21,149
Gross Unrealized Gains	437	209
Gross Unrealized (Losses)	(52)	(38)
Total AFS securities, Estimated Fair Value	13,394	21,320
Obligations of states and political subdivisions
Debt Securities, Available-for-sale Securities, Amortized Cost Basis [Abstract]
Total AFS securities	786,466	421,344
Gross Unrealized Gains	50,878	25,776
Gross Unrealized (Losses)	(18)	(29)
Total AFS securities, Estimated Fair Value	837,326	447,091
Corporate and other bonds
Debt Securities, Available-for-sale Securities, Amortized Cost Basis [Abstract]
Total AFS securities	148,747	134,342
Gross Unrealized Gains	2,430	1,991
Gross Unrealized (Losses)	(99)	(374)
Total AFS securities, Estimated Fair Value	151,078	135,959
Commercial
Debt Securities, Available-for-sale Securities, Amortized Cost Basis [Abstract]
Total AFS securities	372,259	416,904
Gross Unrealized Gains	16,444	8,786
Gross Unrealized (Losses)	(19)	(643)
Total AFS securities, Estimated Fair Value	388,684	425,047
Commercial | Agency
Debt Securities, Available-for-sale Securities, Amortized Cost Basis [Abstract]
Total AFS securities	321,015	405,731
Gross Unrealized Gains	16,277	8,786
Gross Unrealized (Losses)	(2)	(619)
Total AFS securities, Estimated Fair Value	337,290	413,898
Commercial | Non-agency
Debt Securities, Available-for-sale Securities, Amortized Cost Basis [Abstract]
Total AFS securities	51,244	11,173
Gross Unrealized Gains	167	0
Gross Unrealized (Losses)	(17)	(24)
Total AFS securities, Estimated Fair Value	51,394	11,149
Residential
Debt Securities, Available-for-sale Securities, Amortized Cost Basis [Abstract]
Total AFS securities	1,117,141	896,609
Gross Unrealized Gains	33,323	17,156
Gross Unrealized (Losses)	(2,152)	(816)
Total AFS securities, Estimated Fair Value	1,148,312	912,949
Residential | Agency
Debt Securities, Available-for-sale Securities, Amortized Cost Basis [Abstract]
Total AFS securities	1,012,237	852,300
Gross Unrealized Gains	31,816	16,680
Gross Unrealized (Losses)	(1,946)	(816)
Total AFS securities, Estimated Fair Value	1,042,107	868,164
Residential | Non-agency
Debt Securities, Available-for-sale Securities, Amortized Cost Basis [Abstract]
Total AFS securities	104,904	44,309
Gross Unrealized Gains	1,507	476
Gross Unrealized (Losses)	(206)	0
Total AFS securities, Estimated Fair Value	106,205	44,785
Other securities
Debt Securities, Available-for-sale Securities, Amortized Cost Basis [Abstract]
Total AFS securities	1,625	3,079
Gross Unrealized Gains	0	0
Gross Unrealized (Losses)	0	0
Total AFS securities, Estimated Fair Value	$ 1,625	$ 3,079

SECURITIES (Schedule of Gross U

SECURITIES (Schedule of Gross Unrealized Losses and Fair Value of Investments) (Details) - USD ($)	Dec. 31, 2020	Dec. 31, 2019
Debt and Equity Securities, FV-NI [Line Items]
Less than 12 months, Fair Value	$ 302,914,000	$ 198,348,000
Less than 12 Months, Unrealized Losses	(2,239,000)	(1,204,000)
More than 12 Months, Fair Value	17,585,000	75,035,000
More than 12 Months, Unrealized Losses	(101,000)	(696,000)
Total, Fair Value	320,499,000	273,383,000
Unrealized Losses, Total	(2,340,000)	(1,900,000)
U.S. government and agency securities
Debt and Equity Securities, FV-NI [Line Items]
Less than 12 months, Fair Value	0	7,638,000
Less than 12 Months, Unrealized Losses	0	(38,000)
More than 12 Months, Fair Value	5,456,000	0
More than 12 Months, Unrealized Losses	(52,000)	0
Total, Fair Value	5,456,000	7,638,000
Unrealized Losses, Total	(52,000)	(38,000)
Obligations of states and political subdivisions
Debt and Equity Securities, FV-NI [Line Items]
Less than 12 months, Fair Value	5,091,000	4,526,000
Less than 12 Months, Unrealized Losses	(18,000)	(29,000)
More than 12 Months, Fair Value	0	0
More than 12 Months, Unrealized Losses	0	0
Total, Fair Value	5,091,000	4,526,000
Unrealized Losses, Total	(18,000)	(29,000)
Corporate and other bonds
Debt and Equity Securities, FV-NI [Line Items]
Less than 12 months, Fair Value	17,946,000	17,323,000
Less than 12 Months, Unrealized Losses	(52,000)	(83,000)
More than 12 Months, Fair Value	10,698,000	19,901,000
More than 12 Months, Unrealized Losses	(47,000)	(291,000)
Total, Fair Value	28,644,000	37,224,000
Unrealized Losses, Total	(99,000)	(374,000)
Commercial
Debt and Equity Securities, FV-NI [Line Items]
Less than 12 months, Fair Value	23,547,000	54,714,000
Less than 12 Months, Unrealized Losses	(19,000)	(554,000)
More than 12 Months, Fair Value	376,000	14,966,000
More than 12 Months, Unrealized Losses	0	(89,000)
Total, Fair Value	23,923,000	69,680,000
Unrealized Losses, Total	(19,000)	(643,000)
Residential
Debt and Equity Securities, FV-NI [Line Items]
Less than 12 months, Fair Value	256,330,000	114,147,000
Less than 12 Months, Unrealized Losses	(2,150,000)	(500,000)
More than 12 Months, Fair Value	1,055,000	40,168,000
More than 12 Months, Unrealized Losses	(2,000)	(316,000)
Total, Fair Value	257,385,000	154,315,000
Unrealized Losses, Total	(2,152,000)	(816,000)
Agency | Commercial
Debt and Equity Securities, FV-NI [Line Items]
Less than 12 months, Fair Value	5,893,000	43,552,000
Less than 12 Months, Unrealized Losses	(2,000)	(530,000)
More than 12 Months, Fair Value	376,000	14,966,000
More than 12 Months, Unrealized Losses	0	(89,000)
Total, Fair Value	6,269,000	58,518,000
Unrealized Losses, Total	(2,000)	(619,000)
Agency | Residential
Debt and Equity Securities, FV-NI [Line Items]
Less than 12 months, Fair Value	219,388,000	114,147,000
Less than 12 Months, Unrealized Losses	(1,944,000)	(500,000)
More than 12 Months, Fair Value	1,055,000	40,168,000
More than 12 Months, Unrealized Losses	(2,000)	(316,000)
Total, Fair Value	220,443,000	154,315,000
Unrealized Losses, Total	(1,946,000)	(816,000)
Non-agency | Commercial
Debt and Equity Securities, FV-NI [Line Items]
Less than 12 months, Fair Value	17,654,000	11,162,000
Less than 12 Months, Unrealized Losses	(17,000)	(24,000)
More than 12 Months, Fair Value	0	0
More than 12 Months, Unrealized Losses	0	0
Total, Fair Value	17,654,000	11,162,000
Unrealized Losses, Total	(17,000)	(24,000)
Non-agency | Residential
Debt and Equity Securities, FV-NI [Line Items]
Less than 12 months, Fair Value	36,942,000	0
Less than 12 Months, Unrealized Losses	(206,000)	0
More than 12 Months, Fair Value	0	0
More than 12 Months, Unrealized Losses	0	0
Total, Fair Value	36,942,000	0
Unrealized Losses, Total	$ (206,000)	$ 0

SECURITIES (Schedule of Amortiz

SECURITIES (Schedule of Amortized Cost and Estimated Fair Value of Securities) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
AFS Securities [Abstract]
Due in one year or less, Amortized Cost	$ 19,875	$ 35,177
Due in one year or less, Estimated Fair Value	19,997	35,329
Due after one year through five years, Amortized Cost	161,448	164,605
Due after one year through five years, Estimated Fair Value	169,103	166,873
Due after five years through ten years, Amortized Cost	235,021	249,713
Due after five years through ten years, Estimated Fair Value	242,791	254,790
Due after ten years, Amortized Cost	2,022,903	1,443,932
Due after ten years, Estimated Fair Value	2,108,528	1,488,453
Total AFS securities	2,439,247	1,893,427
Total AFS securities, Estimated Fair Value	2,540,419	1,945,445
HTM Securities [Abstract]
Due in one year or less, Carrying Value	1,443	502
Due in one year or less, Estimated Fair Value	1,460	504
Due after one year through five years, Carrying Value	8,577	10,258
Due after one year through five years, Estimated Fair Value	8,893	10,539
Due after five years through ten years, Carrying Value	1,744	1,768
Due after five years through ten years, Estimated Fair Value	1,805	1,800
Due after ten years, Carrying Value	533,087	542,616
Due after ten years, Estimated Fair Value	607,607	590,660
Total HTM Securities	544,851	555,144
Total HTM securities, Estimated Fair Value	$ 619,765	$ 603,503

SECURITIES (Schedule of Carryin

SECURITIES (Schedule of Carrying Value, Gross Unrealized Gains and Losses and Estimated Fair Value of Securities) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Schedule of Held-to-maturity Securities [Line Items]
Total HTM Securities	$ 544,851	$ 555,144
Gross Unrealized Gains	74,982	48,359
Gross Unrealized Losses	(68)	0
Held-to-maturity Securities, Fair Value	619,765	603,503
U.S. government and agency securities
Schedule of Held-to-maturity Securities [Line Items]
Total HTM Securities	2,751	2,813
Gross Unrealized Gains	0	26
Gross Unrealized Losses	(18)	0
Held-to-maturity Securities, Fair Value	2,733	2,839
Obligations of states and political subdivisions
Schedule of Held-to-maturity Securities [Line Items]
Total HTM Securities	536,767	545,148
Gross Unrealized Gains	74,978	48,274
Gross Unrealized Losses	0	0
Held-to-maturity Securities, Fair Value	611,745	593,422
Commercial
Schedule of Held-to-maturity Securities [Line Items]
Total HTM Securities	5,333	7,183
Gross Unrealized Gains	4	59
Gross Unrealized Losses	(50)	0
Held-to-maturity Securities, Fair Value	5,287	7,242
Agency | Commercial
Schedule of Held-to-maturity Securities [Line Items]
Total HTM Securities	5,333	7,183
Gross Unrealized Gains	4	59
Gross Unrealized Losses	(50)	0
Held-to-maturity Securities, Fair Value	5,287	7,242
Non-agency | Commercial
Schedule of Held-to-maturity Securities [Line Items]
Total HTM Securities	0	0
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Held-to-maturity Securities, Fair Value	$ 0	$ 0

SECURITIES (Amortized Cost of H

SECURITIES (Amortized Cost of HTM Securities by Security Type and Credit Rating) (Details) $ in Thousands	Dec. 31, 2020USD ($)
HTM Securities, Amortized Cost	$ 544,851
Moody's AAA/AA/A
HTM Securities, Amortized Cost	532,157
Moody's Not Rated - Agency
HTM Securities, Amortized Cost	8,084
Moody's Not Rated - Non-Agency
HTM Securities, Amortized Cost	4,610
U.S. government and agency securities
HTM Securities, Amortized Cost	2,751
U.S. government and agency securities | Moody's AAA/AA/A
HTM Securities, Amortized Cost	0
U.S. government and agency securities | Moody's Not Rated - Agency
HTM Securities, Amortized Cost	2,751
U.S. government and agency securities | Moody's Not Rated - Non-Agency
HTM Securities, Amortized Cost	0
Obligations of states and political subdivisions
HTM Securities, Amortized Cost	536,767
Obligations of states and political subdivisions | Moody's AAA/AA/A
HTM Securities, Amortized Cost	532,157
Obligations of states and political subdivisions | Moody's Not Rated - Agency
HTM Securities, Amortized Cost	0
Obligations of states and political subdivisions | Moody's Not Rated - Non-Agency
HTM Securities, Amortized Cost	4,610
Total mortgage-back securities
HTM Securities, Amortized Cost	5,333
Total mortgage-back securities | Moody's AAA/AA/A
HTM Securities, Amortized Cost	0
Total mortgage-back securities | Moody's Not Rated - Agency
HTM Securities, Amortized Cost	5,333
Total mortgage-back securities | Moody's Not Rated - Non-Agency
HTM Securities, Amortized Cost	$ 0

SECURITIES (Gross Realized Gain

SECURITIES (Gross Realized Gains and Losses on the Sale of Securities) (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Securities [Abstract]
Gross realized gains		$ 12,522	$ 9,530	$ 4,221
Gross realized losses		(228)	(1,855)	(3,838)
Gains on securities transactions, net	[1],[2]	12,294	7,675	383
Proceeds from sales of securities		$ 257,945	$ 514,070	$ 515,764
[1]	Discontinued operations have an immaterial impact to the Company’s Consolidated Statements of Cash Flows. The change in goodwill impairment losses included in the Operating Activities section above are attributable to discontinued operations.
[2]	Loans held for sale activity is included in the Operating Activities section above. Due to the increased mortgage related activity during 2020 and 2019, the loans held for sale activity is segregated between originations and purchases of loans held for sale and proceeds from sales of loans held for sale. 2018 loans held for sale activity is included in the change in loans held for sale and is attributable to discontinued operations which has an immaterial impact on the Company’s Consolidated Statements of Cash Flows.

LOANS AND ALLOWANCE FOR LOAN _3

LOANS AND ALLOWANCE FOR LOAN LOSSES (Loans Stated at Face Amount, Net of Unearned Income) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Jan. 01, 2020	Dec. 31, 2019
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment, net of deferred fees and costs	$ 14,021,314		$ 12,610,936
Total Allowance for credit losses	(160,540)	$ (94,838)	(42,294)
Total loans held for investment, net	13,860,774		12,568,642
Loans receivable, deferred fees and costs	69,700		69,800
Construction and Land Development
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment, net of deferred fees and costs	925,798		1,250,924
Commercial Real Estate - Owner Occupied
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment, net of deferred fees and costs	2,128,909		2,041,243
Commercial Real Estate - Non-Owner Occupied
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment, net of deferred fees and costs	3,657,562		3,286,098
Multifamily Real Estate
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment, net of deferred fees and costs	814,745		633,743
Commercial and Industrial
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment, net of deferred fees and costs	3,263,460		2,114,033
Residential 1-4 Family - Commercial
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment, net of deferred fees and costs	671,949		724,337
Residential 1-4 Family - Consumer
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment, net of deferred fees and costs	822,866		890,503
Residential 1-4 Family - Revolving
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment, net of deferred fees and costs	596,996		659,504
Auto
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment, net of deferred fees and costs	401,324		350,419
Consumer
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment, net of deferred fees and costs	247,730		372,853
Other Commercial
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment, net of deferred fees and costs	489,975		$ 287,279
Paycheck Protection Program (PPP) | Commercial and Industrial
Loans and Leases Receivable Disclosure [Line Items]
Total loans held for investment, net	1,200,000
Paycheck Protection Program (PPP) | Other Commercial
Loans and Leases Receivable Disclosure [Line Items]
Total loans held for investment, net	$ 11,300

LOANS AND ALLOWANCE FOR LOAN _4

LOANS AND ALLOWANCE FOR LOAN LOSSES (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Jan. 01, 2020	Dec. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	$ 42,448	$ 28,232	$ 27,000	$ 45,204
Nonaccrual interest income	$ 0	1,800	2,300
Period for restructured loan to be considered default	90 days
Acquired performing loan portfolio	$ 14,021,314	12,610,936
Allowance for credit losses on loans	160,540	42,294	$ 41,045	89,778	$ 38,208
Troubled Debt Restructurings (TDRs)	20,616	19,496
Total Allowance for credit losses	160,540	42,294		$ 94,838
Loans, recorded investment under the Cares Act	13,860,774	12,568,642
Troubled Debt Restructurings [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled Debt Restructurings (TDRs)	20,600
Total Allowance for credit losses	1,600
Acquired Performing Loan Portfolio
Accounts, Notes, Loans and Financing Receivable [Line Items]
Acquired performing loan portfolio		3,000,000
Remaining discount on acquired loans		50,100
Purchased Impaired
Accounts, Notes, Loans and Financing Receivable [Line Items]
Acquired performing loan portfolio		86,681
Allowance for credit losses on loans		217
Purchased impaired loans (gross)		$ 104,900
Paycheck Protection Program (PPP)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans under modified terms	$ 146,100

LOANS AND ALLOWANCE FOR LOAN _5

LOANS AND ALLOWANCE FOR LOAN LOSSES (Summary of Aging of the Loan Portfolio by Class) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Jan. 01, 2020	Dec. 31, 2019	Dec. 31, 2018
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	$ 13,929,049		$ 12,419,378
Greater Than 90 Days and Still Accruing	13,634		13,396
Nonaccrual	42,448	$ 45,204	28,232	$ 27,000
Total Loans	14,021,314		12,610,936
30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	27,024		50,453
60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	9,159		12,796
Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current			70,267
Total Loans			86,681
Purchased Impaired | 30-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due			3,221
Purchased Impaired | 90+ Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due			13,193
Construction and Land Development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	920,276		1,231,043
Greater Than 90 Days and Still Accruing	0		189
Nonaccrual	3,072	4,060	3,703
Total Loans	925,798		1,250,924
Construction and Land Development | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	1,903		4,563
Construction and Land Development | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	547		482
Construction and Land Development | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current			10,465
Total Loans			10,944
Construction and Land Development | Purchased Impaired | 30-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due			136
Construction and Land Development | Purchased Impaired | 90+ Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due			343
Commercial Real Estate - Owner Occupied
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	2,114,804		2,001,074
Greater Than 90 Days and Still Accruing	3,727		1,062
Nonaccrual	7,128	13,889	6,003
Total Loans	2,128,909		2,041,243
Commercial Real Estate - Owner Occupied | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	1,870		3,482
Commercial Real Estate - Owner Occupied | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	1,380		2,184
Commercial Real Estate - Owner Occupied | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current			20,074
Total Loans			27,438
Commercial Real Estate - Owner Occupied | Purchased Impaired | 30-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due			480
Commercial Real Estate - Owner Occupied | Purchased Impaired | 90+ Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due			6,884
Commercial Real Estate - Non-Owner Occupied
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	3,651,232		3,269,244
Greater Than 90 Days and Still Accruing	148		1,451
Nonaccrual	2,317	1,368	381
Total Loans	3,657,562		3,286,098
Commercial Real Estate - Non-Owner Occupied | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	2,144		457
Commercial Real Estate - Non-Owner Occupied | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	1,721		0
Commercial Real Estate - Non-Owner Occupied | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current			12,730
Total Loans			14,565
Commercial Real Estate - Non-Owner Occupied | Purchased Impaired | 30-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due			848
Commercial Real Estate - Non-Owner Occupied | Purchased Impaired | 90+ Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due			987
Multifamily Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	814,095		632,952
Greater Than 90 Days and Still Accruing	0		474
Nonaccrual	33	0	0
Total Loans	814,745		633,743
Multifamily Real Estate | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	617		223
Multifamily Real Estate | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0		0
Multifamily Real Estate | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current			94
Total Loans			94
Multifamily Real Estate | Purchased Impaired | 30-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due			0
Multifamily Real Estate | Purchased Impaired | 90+ Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due			0
Commercial and Industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	3,257,201		2,099,974
Greater Than 90 Days and Still Accruing	1,114		449
Nonaccrual	2,107	3,037	1,735
Total Loans	3,263,460		2,114,033
Commercial and Industrial | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	1,848		8,698
Commercial and Industrial | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	1,190		1,598
Commercial and Industrial | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current			590
Total Loans			1,579
Commercial and Industrial | Purchased Impaired | 30-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due			0
Commercial and Industrial | Purchased Impaired | 90+ Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due			989
Residential 1-4 Family - Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	657,351		703,471
Greater Than 90 Days and Still Accruing	1,560		674
Nonaccrual	9,993	6,492	4,301
Total Loans	671,949		724,337
Residential 1-4 Family - Commercial | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	2,227		1,479
Residential 1-4 Family - Commercial | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	818		2,207
Residential 1-4 Family - Commercial | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current			9,667
Total Loans			12,205
Residential 1-4 Family - Commercial | Purchased Impaired | 30-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due			543
Residential 1-4 Family - Commercial | Purchased Impaired | 90+ Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due			1,995
Residential 1-4 Family - Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	792,852		842,667
Greater Than 90 Days and Still Accruing	5,699		4,515
Nonaccrual	12,600	13,117	9,292
Total Loans	822,866		890,503
Residential 1-4 Family - Consumer | Current
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	792,852
Residential 1-4 Family - Consumer | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	10,182		16,244
Total Loans	10,182
Residential 1-4 Family - Consumer | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	1,533		3,072
Total Loans	1,533
Residential 1-4 Family - Consumer | 90+ Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	5,699
Residential 1-4 Family - Consumer | Nonaccrual
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	12,600
Residential 1-4 Family - Consumer | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current			12,005
Total Loans			14,713
Residential 1-4 Family - Consumer | Purchased Impaired | 30-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due			927
Residential 1-4 Family - Consumer | Purchased Impaired | 90+ Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due			1,781
Residential 1-4 Family - Revolving
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	587,522		637,966
Greater Than 90 Days and Still Accruing	826		3,357
Nonaccrual	4,629	2,490	2,080
Total Loans	596,996		659,504
Residential 1-4 Family - Revolving | Current
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	587,522
Residential 1-4 Family - Revolving | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	2,975		10,190
Total Loans	2,975
Residential 1-4 Family - Revolving | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	1,044		1,784
Total Loans	1,044
Residential 1-4 Family - Revolving | 90+ Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	826
Residential 1-4 Family - Revolving | Nonaccrual
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	4,629
Residential 1-4 Family - Revolving | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current			3,635
Total Loans			4,127
Residential 1-4 Family - Revolving | Purchased Impaired | 30-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due			287
Residential 1-4 Family - Revolving | Purchased Impaired | 90+ Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due			205
Auto
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	398,206		346,819
Greater Than 90 Days and Still Accruing	166		272
Nonaccrual	500	565	563
Total Loans	401,324		350,419
Auto | Current
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	398,206
Auto | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	2,076		2,525
Total Loans	2,076
Auto | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	376		236
Total Loans	376
Auto | 90+ Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	166
Auto | Nonaccrual
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	500
Auto | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current			4
Total Loans			4
Auto | Purchased Impaired | 30-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due			0
Auto | Purchased Impaired | 90+ Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due			0
Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	245,551		367,794
Greater Than 90 Days and Still Accruing	394		953
Nonaccrual	69	88	77
Total Loans	247,730		372,853
Consumer | Current
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	245,551
Consumer | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	1,166		2,128
Total Loans	1,166
Consumer | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	550		1,233
Total Loans	550
Consumer | 90+ Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	394
Consumer | Nonaccrual
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	69
Consumer | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current			659
Total Loans			668
Consumer | Purchased Impaired | 30-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due			0
Consumer | Purchased Impaired | 90+ Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due			9
Other Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	489,959		286,374
Greater Than 90 Days and Still Accruing	0		0
Nonaccrual	0	$ 98	97
Total Loans	489,975		287,279
Other Commercial | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	16		464
Other Commercial | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	$ 0		0
Other Commercial | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current			344
Total Loans			344
Other Commercial | Purchased Impaired | 30-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due			0
Other Commercial | Purchased Impaired | 90+ Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due			$ 0

LOANS AND ALLOWANCE FOR LOAN _6

LOANS AND ALLOWANCE FOR LOAN LOSSES (Summary of Loans on Nonaccrual Status) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Jan. 01, 2020	Dec. 31, 2019	Dec. 31, 2018
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	$ 42,448	$ 45,204	$ 28,232	$ 27,000
Nonaccrual With No Allowance For Credit Losses	11,497
Loans Past Due Over 90 Days Still Accruing	13,634		13,396
Construction and Land Development
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	3,072	4,060	3,703
Nonaccrual With No Allowance For Credit Losses	1,985
Loans Past Due Over 90 Days Still Accruing	0		189
Commercial Real Estate - Owner Occupied
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	7,128	13,889	6,003
Nonaccrual With No Allowance For Credit Losses	1,994
Loans Past Due Over 90 Days Still Accruing	3,727		1,062
Commercial Real Estate - Non-Owner Occupied
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	2,317	1,368	381
Nonaccrual With No Allowance For Credit Losses	0
Loans Past Due Over 90 Days Still Accruing	148		1,451
Multifamily Real Estate
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	33	0	0
Nonaccrual With No Allowance For Credit Losses	0
Loans Past Due Over 90 Days Still Accruing	0		474
Commercial and Industrial
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	2,107	3,037	1,735
Nonaccrual With No Allowance For Credit Losses	1
Loans Past Due Over 90 Days Still Accruing	1,114		449
Residential 1-4 Family - Commercial
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	9,993	6,492	4,301
Nonaccrual With No Allowance For Credit Losses	6,388
Loans Past Due Over 90 Days Still Accruing	1,560		674
Residential 1-4 Family - Consumer
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	12,600	13,117	9,292
Nonaccrual With No Allowance For Credit Losses	1,069
Loans Past Due Over 90 Days Still Accruing	5,699		4,515
Residential 1-4 Family - Revolving
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	4,629	2,490	2,080
Nonaccrual With No Allowance For Credit Losses	60
Loans Past Due Over 90 Days Still Accruing	826		3,357
Auto
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	500	565	563
Nonaccrual With No Allowance For Credit Losses	0
Loans Past Due Over 90 Days Still Accruing	166		272
Consumer
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	69	88	77
Nonaccrual With No Allowance For Credit Losses	0
Loans Past Due Over 90 Days Still Accruing	394		953
Other Commercial
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	0	$ 98	97
Nonaccrual With No Allowance For Credit Losses	0
Loans Past Due Over 90 Days Still Accruing	$ 0		$ 0

LOANS AND ALLOWANCE FOR LOAN _7

LOANS AND ALLOWANCE FOR LOAN LOSSES (Impaired Loans Individually Evaluated for Impairment by Segment) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Recorded Investment
Loans without a specific allowance	$ 35,185
Loans with a specific allowance	23,938
Total impaired loans	59,123
Unpaid Principal Balance
Loans without a specific allowance	38,655
Loans with a specific allowance	25,738
Total impaired loans	64,393
Related Allowance	3,027
Average Investment	62,158	$ 63,077
Interest Income Recognized	1,425	1,702
Construction and Land Development
Recorded Investment
Loans without a specific allowance	5,877
Loans with a specific allowance	984
Unpaid Principal Balance
Loans without a specific allowance	7,174
Loans with a specific allowance	1,032
Related Allowance	49
Average Investment	6,764	11,648
Interest Income Recognized	110	234
Commercial Real Estate - Owner Occupied
Recorded Investment
Loans without a specific allowance	8,801
Loans with a specific allowance	2,820
Unpaid Principal Balance
Loans without a specific allowance	9,296
Loans with a specific allowance	3,093
Related Allowance	146
Average Investment	12,258	13,383
Interest Income Recognized	323	499
Commercial Real Estate - Non-Owner Occupied
Recorded Investment
Loans without a specific allowance	3,510
Loans with a specific allowance	335
Unpaid Principal Balance
Loans without a specific allowance	4,059
Loans with a specific allowance	383
Related Allowance	2
Average Investment	4,775	7,157
Interest Income Recognized	147	246
Commercial and Industrial
Recorded Investment
Loans without a specific allowance	3,668
Loans with a specific allowance	2,568
Unpaid Principal Balance
Loans without a specific allowance	3,933
Loans with a specific allowance	2,590
Related Allowance	619
Average Investment	6,438	4,672
Interest Income Recognized	293	232
Residential 1-4 Family - Commercial
Recorded Investment
Loans without a specific allowance	4,047
Loans with a specific allowance	1,726
Unpaid Principal Balance
Loans without a specific allowance	4,310
Loans with a specific allowance	1,819
Related Allowance	162
Average Investment	6,145	5,667
Interest Income Recognized	120	180
Residential 1-4 Family - Consumer
Recorded Investment
Loans without a specific allowance	8,420
Loans with a specific allowance	12,026
Unpaid Principal Balance
Loans without a specific allowance	9,018
Loans with a specific allowance	12,670
Related Allowance	1,242
Average Investment	20,963	16,977
Interest Income Recognized	308	236
Residential 1-4 Family - Revolving
Recorded Investment
Loans without a specific allowance	862
Loans with a specific allowance	2,186
Unpaid Principal Balance
Loans without a specific allowance	865
Loans with a specific allowance	2,369
Related Allowance	510
Average Investment	3,256	2,000
Interest Income Recognized	82	23
Auto
Recorded Investment
Loans with a specific allowance	563
Unpaid Principal Balance
Loans with a specific allowance	879
Related Allowance	221
Average Investment	788	824
Interest Income Recognized	15	20
Consumer
Recorded Investment
Loans with a specific allowance	168
Unpaid Principal Balance
Loans with a specific allowance	336
Related Allowance	46
Average Investment	187	263
Interest Income Recognized	5	5
Other Commercial
Recorded Investment
Loans with a specific allowance	562
Unpaid Principal Balance
Loans with a specific allowance	567
Related Allowance	30
Average Investment	584	486
Interest Income Recognized	$ 22	$ 27

LOANS AND ALLOWANCE FOR LOAN _8

LOANS AND ALLOWANCE FOR LOAN LOSSES (Summary of Modified Loans that Continue to Accrue Interest Under the Terms of Restructuring Agreement) (Details) $ in Thousands	Dec. 31, 2020USD ($)loan	Dec. 31, 2019USD ($)loan
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	137	120
Recorded Investment	$ 20,616	$ 19,496
Outstanding Commitment	$ 176	$ 26
Performing
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	102	96
Recorded Investment	$ 13,961	$ 15,686
Outstanding Commitment	$ 176	$ 26
Performing | Construction and Land Development
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	4	4
Recorded Investment	$ 215	$ 1,114
Outstanding Commitment	$ 0	$ 0
Performing | Commercial Real Estate - Owner Occupied
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	6	6
Recorded Investment	$ 2,033	$ 2,228
Outstanding Commitment	$ 176	$ 26
Performing | Commercial Real Estate - Non-Owner Occupied
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	1	1
Recorded Investment	$ 1,089	$ 1,089
Outstanding Commitment	$ 0	$ 0
Performing | Commercial and Industrial
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	4	4
Recorded Investment	$ 727	$ 1,020
Outstanding Commitment	$ 0	$ 0
Performing | Residential 1-4 Family - Commercial
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	3	5
Recorded Investment	$ 245	$ 290
Outstanding Commitment	$ 0	$ 0
Performing | Residential 1-4 Family - Consumer
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	77	69
Recorded Investment	$ 8,943	$ 9,396
Outstanding Commitment	$ 0	$ 0
Performing | Residential 1-4 Family - Revolving
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	3	2
Recorded Investment	$ 277	$ 56
Outstanding Commitment	$ 0	$ 0
Performing | Consumer
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	3	4
Recorded Investment	$ 22	$ 29
Outstanding Commitment	$ 0	$ 0
Performing | Other Commercial
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	1	1
Recorded Investment	$ 410	$ 464
Outstanding Commitment	$ 0	$ 0
Nonperforming
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	35	24
Recorded Investment	$ 6,655	$ 3,810
Outstanding Commitment	$ 0	$ 0
Nonperforming | Commercial Real Estate - Owner Occupied
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	1	2
Recorded Investment	$ 20	$ 176
Outstanding Commitment	$ 0	$ 0
Nonperforming | Commercial Real Estate - Non-Owner Occupied
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	1
Recorded Investment	$ 134
Outstanding Commitment	$ 0
Nonperforming | Commercial and Industrial
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	3	1
Recorded Investment	$ 237	$ 55
Outstanding Commitment	$ 0	$ 0
Nonperforming | Residential 1-4 Family - Commercial
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	4
Recorded Investment	$ 1,296
Outstanding Commitment	$ 0
Nonperforming | Residential 1-4 Family - Consumer
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	23	19
Recorded Investment	$ 4,865	$ 3,522
Outstanding Commitment	$ 0	$ 0
Nonperforming | Residential 1-4 Family - Revolving
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	3	2
Recorded Investment	$ 103	$ 57
Outstanding Commitment	$ 0	$ 0

LOANS AND ALLOWANCE FOR LOAN _9

LOANS AND ALLOWANCE FOR LOAN LOSSES (Schedule of TDR by Class and Modification Type) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2020USD ($)loan	Dec. 31, 2019USD ($)loan
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	34	38
Recorded Investment at Period End | $	$ 4,840	$ 5,016
Term modification, at a market rate
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	9	12
Recorded Investment at Period End | $	$ 726	$ 2,160
Term modification, below market rate
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	24	26
Recorded Investment at Period End | $	$ 3,470	$ 2,856
Interest rate modification, below market rate
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	0
Recorded Investment at Period End | $	$ 0
Modified to interest only, at a market rate
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	1	0
Recorded Investment at Period End | $	$ 644	$ 0
Construction and Land Development | Term modification, below market rate
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	1	3
Recorded Investment at Period End | $	$ 34	$ 193
Commercial and Industrial | Term modification, at a market rate
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	3	1
Recorded Investment at Period End | $	$ 103	$ 376
Commercial and Industrial | Term modification, below market rate
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	2
Recorded Investment at Period End | $	$ 355
Residential 1-4 Family - Commercial | Term modification, at a market rate
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	1	1
Recorded Investment at Period End | $	$ 294	$ 72
Residential 1-4 Family - Commercial | Term modification, below market rate
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	1
Recorded Investment at Period End | $	$ 287
Residential 1-4 Family - Commercial | Modified to interest only, at a market rate
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	1
Recorded Investment at Period End | $	$ 644
Residential 1-4 Family - Consumer | Term modification, at a market rate
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	4	7
Recorded Investment at Period End | $	$ 320	$ 1,688
Residential 1-4 Family - Consumer | Term modification, below market rate
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	18	22
Recorded Investment at Period End | $	$ 2,519	$ 2,658
Residential 1-4 Family - Revolving | Term modification, below market rate
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	2
Recorded Investment at Period End | $	$ 275
Consumer | Term modification, at a market rate
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	1	3
Recorded Investment at Period End | $	$ 9	$ 24
Consumer | Term modification, below market rate
Financing Receivable, Modifications [Line Items]
No. of Loans | loan		1
Recorded Investment at Period End | $		$ 5

LOANS AND ALLOWANCE FOR LOAN_10

LOANS AND ALLOWANCE FOR LOAN LOSSES (Allowance for Loan Loss Activity, by Portfolio Segment, Balances for Allowance for Credit Losses, and Loans Based on Impairment Methodology) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2020	Jan. 01, 2020	Dec. 31, 2019
Allowance for loan losses:
Balance, beginning of the year	$ 42,294	$ 41,045	$ 38,208
Impact of ASC 326 adoption on non-PCD loans	45,098
Impact of ASC 326 adoption on PCD loans	2,386
Impact of ASC 326 adoption	47,484
Loans charged off	(18,193)	(28,108)	(16,230)
Recoveries credited to allowance	6,755	7,232	5,168
Provision charged to operations	82,200	22,125	13,899
Balance, end of period	160,540	42,294	41,045
Loans:
Loans individually evaluated for impairment						$ 59,123
ALLL individually evaluated for impairment						3,027
Loans collectively evaluated for impairment						12,465,132
ALLL collectively evaluated for impairment						39,050
Total Loans				$ 14,021,314		12,610,936
Total ALLL	160,540	41,045	41,045	160,540	$ 89,778	42,294
Purchased Impaired
Allowance for loan losses:
Balance, beginning of the year	217
Balance, end of period		217
Loans:
Total Loans						86,681
Total ALLL	217	217				217
Construction and Land Development
Allowance for loan losses:
Balance, beginning of the year	5,758	6,803	9,709
Loans charged off		(4,218)	(2,005)
Recoveries credited to allowance		665	447
Provision charged to operations		2,508	(1,348)
Balance, end of period		5,758	6,803
Loans:
Loans individually evaluated for impairment						6,861
ALLL individually evaluated for impairment						49
Loans collectively evaluated for impairment						1,233,119
ALLL collectively evaluated for impairment						5,709
Total Loans				925,798		1,250,924
Total ALLL	5,758	6,803	6,803			5,758
Construction and Land Development | Purchased Impaired
Allowance for loan losses:
Balance, beginning of the year	0
Balance, end of period		0
Loans:
Total Loans						10,944
Total ALLL	0	0				0
Commercial Real Estate - Owner Occupied
Allowance for loan losses:
Balance, beginning of the year	3,919	4,023	2,931
Loans charged off		(1,346)	(709)
Recoveries credited to allowance		456	610
Provision charged to operations		786	1,191
Balance, end of period		3,919	4,023
Loans:
Loans individually evaluated for impairment						11,621
ALLL individually evaluated for impairment						146
Loans collectively evaluated for impairment						2,002,184
ALLL collectively evaluated for impairment						3,773
Total Loans				2,128,909		2,041,243
Total ALLL	3,919	3,919	2,931			3,919
Commercial Real Estate - Owner Occupied | Purchased Impaired
Allowance for loan losses:
Balance, beginning of the year	0
Balance, end of period		0
Loans:
Total Loans						27,438
Total ALLL	0	0				0
Commercial Real Estate - Non-Owner Occupied
Allowance for loan losses:
Balance, beginning of the year	9,543	8,865	7,544
Loans charged off		(270)	(94)
Recoveries credited to allowance		109	100
Provision charged to operations		839	1,315
Balance, end of period		9,543	8,865
Loans:
Loans individually evaluated for impairment						3,845
ALLL individually evaluated for impairment						2
Loans collectively evaluated for impairment						3,267,688
ALLL collectively evaluated for impairment						9,541
Total Loans				3,657,562		3,286,098
Total ALLL	9,543	8,865	8,865			9,543
Commercial Real Estate - Non-Owner Occupied | Purchased Impaired
Allowance for loan losses:
Balance, beginning of the year	0
Balance, end of period		0
Loans:
Total Loans						14,565
Total ALLL	0	0				0
Multifamily Real Estate
Allowance for loan losses:
Balance, beginning of the year	632	649	1,092
Loans charged off		0	0
Recoveries credited to allowance		85	5
Provision charged to operations		(102)	(448)
Balance, end of period		632	649
Loans:
Loans individually evaluated for impairment						0
ALLL individually evaluated for impairment						0
Loans collectively evaluated for impairment						633,649
ALLL collectively evaluated for impairment						632
Total Loans				814,745		633,743
Total ALLL	632	632	1,092			632
Multifamily Real Estate | Purchased Impaired
Allowance for loan losses:
Balance, beginning of the year	0
Balance, end of period		0
Loans:
Total Loans						94
Total ALLL	0	0				0
Commercial and Industrial
Allowance for loan losses:
Balance, beginning of the year	8,604	7,636	4,552
Loans charged off		(3,096)	(833)
Recoveries credited to allowance		1,132	534
Provision charged to operations		2,932	3,383
Balance, end of period		8,604	7,636
Loans:
Loans individually evaluated for impairment						6,236
ALLL individually evaluated for impairment						619
Loans collectively evaluated for impairment						2,106,218
ALLL collectively evaluated for impairment						7,768
Total Loans				3,263,460		2,114,033
Total ALLL	8,604	7,636	7,636			8,604
Commercial and Industrial | Purchased Impaired
Allowance for loan losses:
Balance, beginning of the year	217
Balance, end of period		217
Loans:
Total Loans						1,579
Total ALLL	217	217				217
Residential 1-4 Family - Commercial
Allowance for loan losses:
Balance, beginning of the year	1,365	1,692	4,437
Loans charged off		(472)	(176)
Recoveries credited to allowance		372	353
Provision charged to operations		(227)	(2,922)
Balance, end of period		1,365	1,692
Loans:
Loans individually evaluated for impairment						5,773
ALLL individually evaluated for impairment						162
Loans collectively evaluated for impairment						706,359
ALLL collectively evaluated for impairment						1,203
Total Loans				671,949		724,337
Total ALLL	1,365	1,365	4,437			1,365
Residential 1-4 Family - Commercial | Purchased Impaired
Allowance for loan losses:
Balance, beginning of the year	0
Balance, end of period		0
Loans:
Total Loans						12,205
Total ALLL	0	0				0
Residential 1-4 Family - Consumer
Allowance for loan losses:
Balance, beginning of the year	2,013	1,492	1,524
Loans charged off		(144)	(852)
Recoveries credited to allowance		466	310
Provision charged to operations		199	510
Balance, end of period		2,013	1,492
Loans:
Loans individually evaluated for impairment						20,446
ALLL individually evaluated for impairment						1,242
Loans collectively evaluated for impairment						855,344
ALLL collectively evaluated for impairment						771
Total Loans				822,866		890,503
Total ALLL	2,013	2,013	1,524			2,013
Residential 1-4 Family - Consumer | Purchased Impaired
Allowance for loan losses:
Balance, beginning of the year	0
Balance, end of period		0
Loans:
Total Loans						14,713
Total ALLL	0	0				0
Auto
Allowance for loan losses:
Balance, beginning of the year	1,453	1,443	975
Loans charged off		(1,282)	(1,074)
Recoveries credited to allowance		549	436
Provision charged to operations		743	1,106
Balance, end of period		1,453	1,443
Loans:
Loans individually evaluated for impairment						563
ALLL individually evaluated for impairment						221
Loans collectively evaluated for impairment						349,852
ALLL collectively evaluated for impairment						1,232
Total Loans				401,324		350,419
Total ALLL	1,453	1,443	1,443			1,453
Auto | Purchased Impaired
Allowance for loan losses:
Balance, beginning of the year	0
Balance, end of period		0
Loans:
Total Loans						4
Total ALLL	0	0				0
Commercial Portfolio
Allowance for loan losses:
Balance, beginning of the year	30,941
Impact of ASC 326 adoption on non-PCD loans	4,432
Impact of ASC 326 adoption on PCD loans	1,752
Impact of ASC 326 adoption	6,184
Loans charged off	(6,671)
Recoveries credited to allowance	3,517
Provision charged to operations	83,432
Balance, end of period	117,403	30,941
Loans:
Total Loans				11,952,398
Total ALLL	117,403	30,941		117,403	37,125	30,941
Consumer
Loans:
Total Loans				247,730		372,853
Consumer | Purchased Impaired
Loans:
Total Loans						668
Consumer Portfolio
Allowance for loan losses:
Balance, beginning of the year	11,353
Impact of ASC 326 adoption on non-PCD loans	40,666
Impact of ASC 326 adoption on PCD loans	634
Impact of ASC 326 adoption	41,300
Loans charged off	(11,522)
Recoveries credited to allowance	3,238
Provision charged to operations	(1,232)
Balance, end of period	43,137	11,353
Loans:
Total Loans				2,068,916
Total ALLL	43,137	11,353		43,137	$ 52,653	11,353
Consumer and all other
Allowance for loan losses:
Balance, beginning of the year	7,684	7,145	4,084
Loans charged off		(16,582)	(9,281)
Recoveries credited to allowance		2,706	1,737
Provision charged to operations		14,415	10,605
Balance, end of period		7,684	7,145
Loans:
Loans individually evaluated for impairment						730
ALLL individually evaluated for impairment						76
Loans collectively evaluated for impairment						658,390
ALLL collectively evaluated for impairment						7,608
Total Loans						660,132
Total ALLL	7,684	7,145	7,145			7,684
Consumer and all other | Purchased Impaired
Allowance for loan losses:
Balance, beginning of the year	0
Balance, end of period		0
Loans:
Total Loans						1,012
Total ALLL	0	0				0
Residential 1-4 Family - Revolving
Allowance for loan losses:
Balance, beginning of the year	1,323	1,297	1,360
Loans charged off		(698)	(1,206)
Recoveries credited to allowance		692	636
Provision charged to operations		32	507
Balance, end of period		1,323	1,297
Loans:
Loans individually evaluated for impairment						3,048
ALLL individually evaluated for impairment						510
Loans collectively evaluated for impairment						652,329
ALLL collectively evaluated for impairment						813
Total Loans				$ 596,996		659,504
Total ALLL	1,323	1,297	$ 1,297			1,323
Residential 1-4 Family - Revolving | Purchased Impaired
Allowance for loan losses:
Balance, beginning of the year	0
Balance, end of period		0
Loans:
Total Loans						4,127
Total ALLL	$ 0	$ 0				$ 0

LOANS AND ALLOWANCE FOR LOAN_11

LOANS AND ALLOWANCE FOR LOAN LOSSES (Loans Receivables Related Risk Rating) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Financing Receivable, Recorded Investment [Line Items]
Loans, Total	$ 14,021,314	$ 12,610,936
Construction and Land Development
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	318,458
Term Loans Amortized Cost Basis by Origination Year, 2019	300,855
Term Loans Amortized Cost Basis by Origination Year, 2018	143,149
Term Loans Amortized Cost Basis by Origination Year, 2017	25,178
Term Loans Amortized Cost Basis by Origination Year, 2016	47,362
Term Loans Amortized Cost Basis by Origination Year, Prior	67,060
Financing Receivable, Revolving	23,736
Loans, Total	925,798	1,250,924
Construction and Land Development | Pass
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	316,585
Term Loans Amortized Cost Basis by Origination Year, 2019	277,142
Term Loans Amortized Cost Basis by Origination Year, 2018	116,800
Term Loans Amortized Cost Basis by Origination Year, 2017	24,770
Term Loans Amortized Cost Basis by Origination Year, 2016	42,970
Term Loans Amortized Cost Basis by Origination Year, Prior	54,023
Financing Receivable, Revolving	23,324
Loans, Total	855,614
Construction and Land Development | Watch
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	1,873
Term Loans Amortized Cost Basis by Origination Year, 2019	18,181
Term Loans Amortized Cost Basis by Origination Year, 2018	8,434
Term Loans Amortized Cost Basis by Origination Year, 2017	344
Term Loans Amortized Cost Basis by Origination Year, 2016	2,355
Term Loans Amortized Cost Basis by Origination Year, Prior	6,372
Financing Receivable, Revolving	412
Loans, Total	37,971
Construction and Land Development | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2019	5,532
Term Loans Amortized Cost Basis by Origination Year, 2018	135
Term Loans Amortized Cost Basis by Origination Year, Prior	2,655
Loans, Total	8,322
Construction and Land Development | Substandard
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2018	17,780
Term Loans Amortized Cost Basis by Origination Year, 2017	64
Term Loans Amortized Cost Basis by Origination Year, 2016	2,037
Term Loans Amortized Cost Basis by Origination Year, Prior	4,010
Loans, Total	23,891
Commercial Real Estate - Owner Occupied
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	289,452
Term Loans Amortized Cost Basis by Origination Year, 2019	401,062
Term Loans Amortized Cost Basis by Origination Year, 2018	333,715
Term Loans Amortized Cost Basis by Origination Year, 2017	254,094
Term Loans Amortized Cost Basis by Origination Year, 2016	164,702
Term Loans Amortized Cost Basis by Origination Year, Prior	663,278
Financing Receivable, Revolving	22,606
Loans, Total	2,128,909	2,041,243
Commercial Real Estate - Owner Occupied | Pass
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	286,522
Term Loans Amortized Cost Basis by Origination Year, 2019	375,541
Term Loans Amortized Cost Basis by Origination Year, 2018	300,583
Term Loans Amortized Cost Basis by Origination Year, 2017	233,359
Term Loans Amortized Cost Basis by Origination Year, 2016	128,261
Term Loans Amortized Cost Basis by Origination Year, Prior	570,361
Financing Receivable, Revolving	18,838
Loans, Total	1,913,465
Commercial Real Estate - Owner Occupied | Watch
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	1,942
Term Loans Amortized Cost Basis by Origination Year, 2019	14,611
Term Loans Amortized Cost Basis by Origination Year, 2018	22,224
Term Loans Amortized Cost Basis by Origination Year, 2017	15,623
Term Loans Amortized Cost Basis by Origination Year, 2016	24,979
Term Loans Amortized Cost Basis by Origination Year, Prior	41,361
Financing Receivable, Revolving	1,648
Loans, Total	122,388
Commercial Real Estate - Owner Occupied | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	988
Term Loans Amortized Cost Basis by Origination Year, 2019	6,052
Term Loans Amortized Cost Basis by Origination Year, 2018	5,749
Term Loans Amortized Cost Basis by Origination Year, 2017	4,198
Term Loans Amortized Cost Basis by Origination Year, 2016	9,907
Term Loans Amortized Cost Basis by Origination Year, Prior	30,455
Financing Receivable, Revolving	1,121
Loans, Total	58,470
Commercial Real Estate - Owner Occupied | Substandard
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2019	4,858
Term Loans Amortized Cost Basis by Origination Year, 2018	5,159
Term Loans Amortized Cost Basis by Origination Year, 2017	914
Term Loans Amortized Cost Basis by Origination Year, 2016	1,555
Term Loans Amortized Cost Basis by Origination Year, Prior	21,101
Financing Receivable, Revolving	999
Loans, Total	34,586
Commercial Real Estate - Non-Owner Occupied
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	411,151
Term Loans Amortized Cost Basis by Origination Year, 2019	608,778
Term Loans Amortized Cost Basis by Origination Year, 2018	558,283
Term Loans Amortized Cost Basis by Origination Year, 2017	481,201
Term Loans Amortized Cost Basis by Origination Year, 2016	456,959
Term Loans Amortized Cost Basis by Origination Year, Prior	1,093,176
Financing Receivable, Revolving	48,014
Loans, Total	3,657,562	3,286,098
Commercial Real Estate - Non-Owner Occupied | Pass
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	381,849
Term Loans Amortized Cost Basis by Origination Year, 2019	455,427
Term Loans Amortized Cost Basis by Origination Year, 2018	433,183
Term Loans Amortized Cost Basis by Origination Year, 2017	403,677
Term Loans Amortized Cost Basis by Origination Year, 2016	336,630
Term Loans Amortized Cost Basis by Origination Year, Prior	850,035
Financing Receivable, Revolving	30,421
Loans, Total	2,891,222
Commercial Real Estate - Non-Owner Occupied | Watch
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	28,354
Term Loans Amortized Cost Basis by Origination Year, 2019	142,279
Term Loans Amortized Cost Basis by Origination Year, 2018	76,838
Term Loans Amortized Cost Basis by Origination Year, 2017	59,451
Term Loans Amortized Cost Basis by Origination Year, 2016	79,533
Term Loans Amortized Cost Basis by Origination Year, Prior	224,944
Financing Receivable, Revolving	16,870
Loans, Total	628,269
Commercial Real Estate - Non-Owner Occupied | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	702
Term Loans Amortized Cost Basis by Origination Year, 2019	11,072
Term Loans Amortized Cost Basis by Origination Year, 2018	34,905
Term Loans Amortized Cost Basis by Origination Year, 2017	18,073
Term Loans Amortized Cost Basis by Origination Year, 2016	40,771
Term Loans Amortized Cost Basis by Origination Year, Prior	11,211
Financing Receivable, Revolving	723
Loans, Total	117,457
Commercial Real Estate - Non-Owner Occupied | Substandard
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	246
Term Loans Amortized Cost Basis by Origination Year, 2018	13,357
Term Loans Amortized Cost Basis by Origination Year, 2016	25
Term Loans Amortized Cost Basis by Origination Year, Prior	6,986
Loans, Total	20,614
Multifamily Real Estate
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	147,085
Term Loans Amortized Cost Basis by Origination Year, 2019	90,814
Term Loans Amortized Cost Basis by Origination Year, 2018	155,587
Term Loans Amortized Cost Basis by Origination Year, 2017	117,881
Term Loans Amortized Cost Basis by Origination Year, 2016	68,601
Term Loans Amortized Cost Basis by Origination Year, Prior	232,466
Financing Receivable, Revolving	2,311
Loans, Total	814,745	633,743
Multifamily Real Estate | Pass
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	144,805
Term Loans Amortized Cost Basis by Origination Year, 2019	85,740
Term Loans Amortized Cost Basis by Origination Year, 2018	150,724
Term Loans Amortized Cost Basis by Origination Year, 2017	117,881
Term Loans Amortized Cost Basis by Origination Year, 2016	67,984
Term Loans Amortized Cost Basis by Origination Year, Prior	231,113
Financing Receivable, Revolving	2,311
Loans, Total	800,558
Multifamily Real Estate | Watch
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2019	5,074
Term Loans Amortized Cost Basis by Origination Year, 2018	475
Term Loans Amortized Cost Basis by Origination Year, 2016	617
Term Loans Amortized Cost Basis by Origination Year, Prior	560
Loans, Total	6,726
Multifamily Real Estate | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	2,280
Term Loans Amortized Cost Basis by Origination Year, 2018	4,388
Term Loans Amortized Cost Basis by Origination Year, Prior	760
Loans, Total	7,428
Multifamily Real Estate | Substandard
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, Prior	33
Loans, Total	33
Commercial and Industrial
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	1,737,291
Term Loans Amortized Cost Basis by Origination Year, 2019	389,093
Term Loans Amortized Cost Basis by Origination Year, 2018	217,726
Term Loans Amortized Cost Basis by Origination Year, 2017	74,994
Term Loans Amortized Cost Basis by Origination Year, 2016	76,265
Term Loans Amortized Cost Basis by Origination Year, Prior	149,277
Financing Receivable, Revolving	618,814
Loans, Total	3,263,460	2,114,033
Commercial and Industrial | Pass
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	1,730,876
Term Loans Amortized Cost Basis by Origination Year, 2019	350,618
Term Loans Amortized Cost Basis by Origination Year, 2018	199,489
Term Loans Amortized Cost Basis by Origination Year, 2017	67,035
Term Loans Amortized Cost Basis by Origination Year, 2016	71,799
Term Loans Amortized Cost Basis by Origination Year, Prior	140,461
Financing Receivable, Revolving	590,701
Loans, Total	3,150,979
Commercial and Industrial | Watch
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	4,872
Term Loans Amortized Cost Basis by Origination Year, 2019	32,028
Term Loans Amortized Cost Basis by Origination Year, 2018	13,073
Term Loans Amortized Cost Basis by Origination Year, 2017	6,500
Term Loans Amortized Cost Basis by Origination Year, 2016	3,182
Term Loans Amortized Cost Basis by Origination Year, Prior	4,906
Financing Receivable, Revolving	19,972
Loans, Total	84,533
Commercial and Industrial | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	1,009
Term Loans Amortized Cost Basis by Origination Year, 2019	2,178
Term Loans Amortized Cost Basis by Origination Year, 2018	3,890
Term Loans Amortized Cost Basis by Origination Year, 2017	1,150
Term Loans Amortized Cost Basis by Origination Year, 2016	724
Term Loans Amortized Cost Basis by Origination Year, Prior	1,234
Financing Receivable, Revolving	4,755
Loans, Total	14,940
Commercial and Industrial | Substandard
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	534
Term Loans Amortized Cost Basis by Origination Year, 2019	4,269
Term Loans Amortized Cost Basis by Origination Year, 2018	1,274
Term Loans Amortized Cost Basis by Origination Year, 2017	309
Term Loans Amortized Cost Basis by Origination Year, 2016	560
Term Loans Amortized Cost Basis by Origination Year, Prior	2,676
Financing Receivable, Revolving	3,386
Loans, Total	13,008
Residential 1-4 Family - Commercial
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	105,940
Term Loans Amortized Cost Basis by Origination Year, 2019	96,790
Term Loans Amortized Cost Basis by Origination Year, 2018	84,076
Term Loans Amortized Cost Basis by Origination Year, 2017	85,955
Term Loans Amortized Cost Basis by Origination Year, 2016	74,436
Term Loans Amortized Cost Basis by Origination Year, Prior	221,833
Financing Receivable, Revolving	2,919
Loans, Total	671,949	724,337
Residential 1-4 Family - Commercial | Pass
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	104,630
Term Loans Amortized Cost Basis by Origination Year, 2019	89,332
Term Loans Amortized Cost Basis by Origination Year, 2018	70,310
Term Loans Amortized Cost Basis by Origination Year, 2017	79,156
Term Loans Amortized Cost Basis by Origination Year, 2016	68,915
Term Loans Amortized Cost Basis by Origination Year, Prior	201,492
Financing Receivable, Revolving	2,236
Loans, Total	616,071
Residential 1-4 Family - Commercial | Watch
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	666
Term Loans Amortized Cost Basis by Origination Year, 2019	6,665
Term Loans Amortized Cost Basis by Origination Year, 2018	8,252
Term Loans Amortized Cost Basis by Origination Year, 2017	4,141
Term Loans Amortized Cost Basis by Origination Year, 2016	4,067
Term Loans Amortized Cost Basis by Origination Year, Prior	9,307
Financing Receivable, Revolving	195
Loans, Total	33,293
Residential 1-4 Family - Commercial | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2018	601
Term Loans Amortized Cost Basis by Origination Year, 2017	663
Term Loans Amortized Cost Basis by Origination Year, 2016	468
Term Loans Amortized Cost Basis by Origination Year, Prior	5,923
Loans, Total	7,655
Residential 1-4 Family - Commercial | Substandard
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	644
Term Loans Amortized Cost Basis by Origination Year, 2019	793
Term Loans Amortized Cost Basis by Origination Year, 2018	4,913
Term Loans Amortized Cost Basis by Origination Year, 2017	1,995
Term Loans Amortized Cost Basis by Origination Year, 2016	986
Term Loans Amortized Cost Basis by Origination Year, Prior	5,111
Financing Receivable, Revolving	488
Loans, Total	14,930
Residential 1-4 Family - Consumer
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	215,205
Term Loans Amortized Cost Basis by Origination Year, 2019	77,010
Term Loans Amortized Cost Basis by Origination Year, 2018	67,318
Term Loans Amortized Cost Basis by Origination Year, 2017	70,366
Term Loans Amortized Cost Basis by Origination Year, 2016	104,713
Term Loans Amortized Cost Basis by Origination Year, Prior	288,243
Financing Receivable, Revolving	11
Loans, Total	822,866	890,503
Residential 1-4 Family - Revolving
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	13,340
Term Loans Amortized Cost Basis by Origination Year, 2019	3,916
Term Loans Amortized Cost Basis by Origination Year, 2018	1,614
Term Loans Amortized Cost Basis by Origination Year, 2017	300
Term Loans Amortized Cost Basis by Origination Year, 2016	0
Term Loans Amortized Cost Basis by Origination Year, Prior	863
Financing Receivable, Revolving	576,963
Loans, Total	596,996	659,504
Auto
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	171,450
Term Loans Amortized Cost Basis by Origination Year, 2019	116,052
Term Loans Amortized Cost Basis by Origination Year, 2018	56,608
Term Loans Amortized Cost Basis by Origination Year, 2017	33,251
Term Loans Amortized Cost Basis by Origination Year, 2016	17,407
Term Loans Amortized Cost Basis by Origination Year, Prior	6,556
Financing Receivable, Revolving	0
Loans, Total	401,324	350,419
Consumer
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	26,566
Term Loans Amortized Cost Basis by Origination Year, 2019	68,720
Term Loans Amortized Cost Basis by Origination Year, 2018	68,104
Term Loans Amortized Cost Basis by Origination Year, 2017	22,589
Term Loans Amortized Cost Basis by Origination Year, 2016	10,012
Term Loans Amortized Cost Basis by Origination Year, Prior	16,164
Financing Receivable, Revolving	35,575
Loans, Total	247,730	372,853
Other Commercial
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	223,500
Term Loans Amortized Cost Basis by Origination Year, 2019	112,045
Term Loans Amortized Cost Basis by Origination Year, 2018	10,162
Term Loans Amortized Cost Basis by Origination Year, 2017	31,620
Term Loans Amortized Cost Basis by Origination Year, 2016	17,683
Term Loans Amortized Cost Basis by Origination Year, Prior	50,683
Financing Receivable, Revolving	44,282
Loans, Total	489,975	287,279
Other Commercial | Pass
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	223,490
Term Loans Amortized Cost Basis by Origination Year, 2019	112,045
Term Loans Amortized Cost Basis by Origination Year, 2018	9,549
Term Loans Amortized Cost Basis by Origination Year, 2017	30,314
Term Loans Amortized Cost Basis by Origination Year, 2016	16,494
Term Loans Amortized Cost Basis by Origination Year, Prior	42,158
Financing Receivable, Revolving	44,180
Loans, Total	478,230
Other Commercial | Watch
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2018	613
Term Loans Amortized Cost Basis by Origination Year, 2017	1,299
Term Loans Amortized Cost Basis by Origination Year, 2016	1,189
Term Loans Amortized Cost Basis by Origination Year, Prior	3,934
Loans, Total	7,035
Other Commercial | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	10
Term Loans Amortized Cost Basis by Origination Year, 2017	7
Term Loans Amortized Cost Basis by Origination Year, Prior	4,591
Financing Receivable, Revolving	102
Loans, Total	4,710
Commercial Portfolio
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	3,232,877
Term Loans Amortized Cost Basis by Origination Year, 2019	1,999,437
Term Loans Amortized Cost Basis by Origination Year, 2018	1,502,698
Term Loans Amortized Cost Basis by Origination Year, 2017	1,070,923
Term Loans Amortized Cost Basis by Origination Year, 2016	906,008
Term Loans Amortized Cost Basis by Origination Year, Prior	2,477,773
Financing Receivable, Revolving	762,682
Loans, Total	11,952,398
Commercial Portfolio | Pass
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	3,188,757
Term Loans Amortized Cost Basis by Origination Year, 2019	1,745,845
Term Loans Amortized Cost Basis by Origination Year, 2018	1,280,638
Term Loans Amortized Cost Basis by Origination Year, 2017	956,192
Term Loans Amortized Cost Basis by Origination Year, 2016	733,053
Term Loans Amortized Cost Basis by Origination Year, Prior	2,089,643
Financing Receivable, Revolving	712,011
Loans, Total	10,706,139
Commercial Portfolio | Watch
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	37,707
Term Loans Amortized Cost Basis by Origination Year, 2019	218,838
Term Loans Amortized Cost Basis by Origination Year, 2018	129,909
Term Loans Amortized Cost Basis by Origination Year, 2017	87,358
Term Loans Amortized Cost Basis by Origination Year, 2016	115,922
Term Loans Amortized Cost Basis by Origination Year, Prior	291,384
Financing Receivable, Revolving	39,097
Loans, Total	920,215
Commercial Portfolio | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	4,989
Term Loans Amortized Cost Basis by Origination Year, 2019	24,834
Term Loans Amortized Cost Basis by Origination Year, 2018	49,668
Term Loans Amortized Cost Basis by Origination Year, 2017	24,091
Term Loans Amortized Cost Basis by Origination Year, 2016	51,870
Term Loans Amortized Cost Basis by Origination Year, Prior	56,829
Financing Receivable, Revolving	6,701
Loans, Total	218,982
Commercial Portfolio | Substandard
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	1,424
Term Loans Amortized Cost Basis by Origination Year, 2019	9,920
Term Loans Amortized Cost Basis by Origination Year, 2018	42,483
Term Loans Amortized Cost Basis by Origination Year, 2017	3,282
Term Loans Amortized Cost Basis by Origination Year, 2016	5,163
Term Loans Amortized Cost Basis by Origination Year, Prior	39,917
Financing Receivable, Revolving	4,873
Loans, Total	$ 107,062
Excluding Purchased Impaired
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		12,524,255
Excluding Purchased Impaired | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		12,142,328
Excluding Purchased Impaired | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		316,317
Excluding Purchased Impaired | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		65,252
Excluding Purchased Impaired | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		358
Excluding Purchased Impaired | Construction and Land Development
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		1,239,980
Excluding Purchased Impaired | Construction and Land Development | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		1,197,066
Excluding Purchased Impaired | Construction and Land Development | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		37,182
Excluding Purchased Impaired | Construction and Land Development | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		5,732
Excluding Purchased Impaired | Construction and Land Development | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		0
Excluding Purchased Impaired | Commercial Real Estate - Owner Occupied
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		2,013,805
Excluding Purchased Impaired | Commercial Real Estate - Owner Occupied | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		1,916,492
Excluding Purchased Impaired | Commercial Real Estate - Owner Occupied | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		87,004
Excluding Purchased Impaired | Commercial Real Estate - Owner Occupied | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		10,309
Excluding Purchased Impaired | Commercial Real Estate - Owner Occupied | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		0
Excluding Purchased Impaired | Commercial Real Estate - Non-Owner Occupied
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		3,271,533
Excluding Purchased Impaired | Commercial Real Estate - Non-Owner Occupied | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		3,205,463
Excluding Purchased Impaired | Commercial Real Estate - Non-Owner Occupied | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		62,368
Excluding Purchased Impaired | Commercial Real Estate - Non-Owner Occupied | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		3,608
Excluding Purchased Impaired | Commercial Real Estate - Non-Owner Occupied | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		94
Excluding Purchased Impaired | Multifamily Real Estate
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		633,649
Excluding Purchased Impaired | Multifamily Real Estate | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		613,844
Excluding Purchased Impaired | Multifamily Real Estate | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		19,396
Excluding Purchased Impaired | Multifamily Real Estate | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		409
Excluding Purchased Impaired | Multifamily Real Estate | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		0
Excluding Purchased Impaired | Commercial and Industrial
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		2,112,454
Excluding Purchased Impaired | Commercial and Industrial | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		2,043,903
Excluding Purchased Impaired | Commercial and Industrial | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		60,495
Excluding Purchased Impaired | Commercial and Industrial | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		8,048
Excluding Purchased Impaired | Commercial and Industrial | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		8
Excluding Purchased Impaired | Residential 1-4 Family - Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		712,132
Excluding Purchased Impaired | Residential 1-4 Family - Commercial | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		680,894
Excluding Purchased Impaired | Residential 1-4 Family - Commercial | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		24,864
Excluding Purchased Impaired | Residential 1-4 Family - Commercial | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		6,374
Excluding Purchased Impaired | Residential 1-4 Family - Commercial | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		0
Excluding Purchased Impaired | Residential 1-4 Family - Consumer
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		875,790
Excluding Purchased Impaired | Residential 1-4 Family - Consumer | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		841,408
Excluding Purchased Impaired | Residential 1-4 Family - Consumer | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		13,592
Excluding Purchased Impaired | Residential 1-4 Family - Consumer | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		20,534
Excluding Purchased Impaired | Residential 1-4 Family - Consumer | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		256
Excluding Purchased Impaired | Residential 1-4 Family - Revolving
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		655,377
Excluding Purchased Impaired | Residential 1-4 Family - Revolving | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		641,069
Excluding Purchased Impaired | Residential 1-4 Family - Revolving | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		6,373
Excluding Purchased Impaired | Residential 1-4 Family - Revolving | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		7,935
Excluding Purchased Impaired | Residential 1-4 Family - Revolving | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		0
Excluding Purchased Impaired | Auto
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		350,415
Excluding Purchased Impaired | Auto | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		345,960
Excluding Purchased Impaired | Auto | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		2,630
Excluding Purchased Impaired | Auto | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		1,825
Excluding Purchased Impaired | Auto | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		0
Excluding Purchased Impaired | Consumer
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		372,185
Excluding Purchased Impaired | Consumer | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		371,315
Excluding Purchased Impaired | Consumer | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		550
Excluding Purchased Impaired | Consumer | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		320
Excluding Purchased Impaired | Consumer | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		0
Excluding Purchased Impaired | Other Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		286,935
Excluding Purchased Impaired | Other Commercial | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		284,914
Excluding Purchased Impaired | Other Commercial | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		1,863
Excluding Purchased Impaired | Other Commercial | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		158
Excluding Purchased Impaired | Other Commercial | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		0
Purchased Impaired
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		86,681
Purchased Impaired | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		32,922
Purchased Impaired | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		27,931
Purchased Impaired | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		25,828
Purchased Impaired | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		0
Purchased Impaired | Construction and Land Development
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		10,944
Purchased Impaired | Construction and Land Development | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		1,092
Purchased Impaired | Construction and Land Development | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		3,692
Purchased Impaired | Construction and Land Development | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		6,160
Purchased Impaired | Construction and Land Development | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		0
Purchased Impaired | Commercial Real Estate - Owner Occupied
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		27,438
Purchased Impaired | Commercial Real Estate - Owner Occupied | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		8,264
Purchased Impaired | Commercial Real Estate - Owner Occupied | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		10,524
Purchased Impaired | Commercial Real Estate - Owner Occupied | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		8,650
Purchased Impaired | Commercial Real Estate - Owner Occupied | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		0
Purchased Impaired | Commercial Real Estate - Non-Owner Occupied
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		14,565
Purchased Impaired | Commercial Real Estate - Non-Owner Occupied | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		3,826
Purchased Impaired | Commercial Real Estate - Non-Owner Occupied | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		9,415
Purchased Impaired | Commercial Real Estate - Non-Owner Occupied | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		1,324
Purchased Impaired | Commercial Real Estate - Non-Owner Occupied | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		0
Purchased Impaired | Multifamily Real Estate
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		94
Purchased Impaired | Multifamily Real Estate | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		94
Purchased Impaired | Multifamily Real Estate | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		0
Purchased Impaired | Commercial and Industrial
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		1,579
Purchased Impaired | Commercial and Industrial | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		127
Purchased Impaired | Commercial and Industrial | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		25
Purchased Impaired | Commercial and Industrial | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		1,427
Purchased Impaired | Commercial and Industrial | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		0
Purchased Impaired | Residential 1-4 Family - Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		12,205
Purchased Impaired | Residential 1-4 Family - Commercial | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		6,000
Purchased Impaired | Residential 1-4 Family - Commercial | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		2,693
Purchased Impaired | Residential 1-4 Family - Commercial | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		3,512
Purchased Impaired | Residential 1-4 Family - Commercial | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		0
Purchased Impaired | Residential 1-4 Family - Consumer
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		14,713
Purchased Impaired | Residential 1-4 Family - Consumer | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		9,947
Purchased Impaired | Residential 1-4 Family - Consumer | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		557
Purchased Impaired | Residential 1-4 Family - Consumer | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		4,209
Purchased Impaired | Residential 1-4 Family - Consumer | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		0
Purchased Impaired | Residential 1-4 Family - Revolving
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		4,127
Purchased Impaired | Residential 1-4 Family - Revolving | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		2,887
Purchased Impaired | Residential 1-4 Family - Revolving | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		707
Purchased Impaired | Residential 1-4 Family - Revolving | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		533
Purchased Impaired | Residential 1-4 Family - Revolving | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		0
Purchased Impaired | Auto
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		4
Purchased Impaired | Auto | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		2
Purchased Impaired | Auto | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		2
Purchased Impaired | Auto | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		0
Purchased Impaired | Consumer
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		668
Purchased Impaired | Consumer | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		657
Purchased Impaired | Consumer | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		11
Purchased Impaired | Consumer | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		0
Purchased Impaired | Other Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		344
Purchased Impaired | Other Commercial | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		120
Purchased Impaired | Other Commercial | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		224
Purchased Impaired | Other Commercial | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		$ 0

LOANS AND ALLOWANCE FOR LOAN_12

LOANS AND ALLOWANCE FOR LOAN LOSSES (Loans Receivables Based on Delinquency Status) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Financing Receivable, Recorded Investment [Line Items]
Loans, Total	$ 14,021,314	$ 12,610,936
Construction and Land Development
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	318,458
Term Loans Amortized Cost Basis by Origination Year, 2019	300,855
Term Loans Amortized Cost Basis by Origination Year, 2018	143,149
Term Loans Amortized Cost Basis by Origination Year, 2017	25,178
Term Loans Amortized Cost Basis by Origination Year, 2016	47,362
Term Loans Amortized Cost Basis by Origination Year, Prior	67,060
Financing Receivable, Revolving	23,736
Loans, Total	925,798	1,250,924
Commercial Real Estate - Owner Occupied
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	289,452
Term Loans Amortized Cost Basis by Origination Year, 2019	401,062
Term Loans Amortized Cost Basis by Origination Year, 2018	333,715
Term Loans Amortized Cost Basis by Origination Year, 2017	254,094
Term Loans Amortized Cost Basis by Origination Year, 2016	164,702
Term Loans Amortized Cost Basis by Origination Year, Prior	663,278
Financing Receivable, Revolving	22,606
Loans, Total	2,128,909	2,041,243
Commercial Real Estate - Non-Owner Occupied
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	411,151
Term Loans Amortized Cost Basis by Origination Year, 2019	608,778
Term Loans Amortized Cost Basis by Origination Year, 2018	558,283
Term Loans Amortized Cost Basis by Origination Year, 2017	481,201
Term Loans Amortized Cost Basis by Origination Year, 2016	456,959
Term Loans Amortized Cost Basis by Origination Year, Prior	1,093,176
Financing Receivable, Revolving	48,014
Loans, Total	3,657,562	3,286,098
Multifamily Real Estate
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	147,085
Term Loans Amortized Cost Basis by Origination Year, 2019	90,814
Term Loans Amortized Cost Basis by Origination Year, 2018	155,587
Term Loans Amortized Cost Basis by Origination Year, 2017	117,881
Term Loans Amortized Cost Basis by Origination Year, 2016	68,601
Term Loans Amortized Cost Basis by Origination Year, Prior	232,466
Financing Receivable, Revolving	2,311
Loans, Total	814,745	633,743
Commercial and Industrial
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	1,737,291
Term Loans Amortized Cost Basis by Origination Year, 2019	389,093
Term Loans Amortized Cost Basis by Origination Year, 2018	217,726
Term Loans Amortized Cost Basis by Origination Year, 2017	74,994
Term Loans Amortized Cost Basis by Origination Year, 2016	76,265
Term Loans Amortized Cost Basis by Origination Year, Prior	149,277
Financing Receivable, Revolving	618,814
Loans, Total	3,263,460	2,114,033
Residential 1-4 Family - Commercial
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	105,940
Term Loans Amortized Cost Basis by Origination Year, 2019	96,790
Term Loans Amortized Cost Basis by Origination Year, 2018	84,076
Term Loans Amortized Cost Basis by Origination Year, 2017	85,955
Term Loans Amortized Cost Basis by Origination Year, 2016	74,436
Term Loans Amortized Cost Basis by Origination Year, Prior	221,833
Financing Receivable, Revolving	2,919
Loans, Total	671,949	724,337
Residential 1-4 Family - Consumer
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	215,205
Term Loans Amortized Cost Basis by Origination Year, 2019	77,010
Term Loans Amortized Cost Basis by Origination Year, 2018	67,318
Term Loans Amortized Cost Basis by Origination Year, 2017	70,366
Term Loans Amortized Cost Basis by Origination Year, 2016	104,713
Term Loans Amortized Cost Basis by Origination Year, Prior	288,243
Financing Receivable, Revolving	11
Loans, Total	822,866	890,503
Residential 1-4 Family - Revolving
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	13,340
Term Loans Amortized Cost Basis by Origination Year, 2019	3,916
Term Loans Amortized Cost Basis by Origination Year, 2018	1,614
Term Loans Amortized Cost Basis by Origination Year, 2017	300
Term Loans Amortized Cost Basis by Origination Year, 2016	0
Term Loans Amortized Cost Basis by Origination Year, Prior	863
Financing Receivable, Revolving	576,963
Loans, Total	596,996	659,504
Consumer
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	26,566
Term Loans Amortized Cost Basis by Origination Year, 2019	68,720
Term Loans Amortized Cost Basis by Origination Year, 2018	68,104
Term Loans Amortized Cost Basis by Origination Year, 2017	22,589
Term Loans Amortized Cost Basis by Origination Year, 2016	10,012
Term Loans Amortized Cost Basis by Origination Year, Prior	16,164
Financing Receivable, Revolving	35,575
Loans, Total	247,730	372,853
Auto
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	171,450
Term Loans Amortized Cost Basis by Origination Year, 2019	116,052
Term Loans Amortized Cost Basis by Origination Year, 2018	56,608
Term Loans Amortized Cost Basis by Origination Year, 2017	33,251
Term Loans Amortized Cost Basis by Origination Year, 2016	17,407
Term Loans Amortized Cost Basis by Origination Year, Prior	6,556
Financing Receivable, Revolving	0
Loans, Total	401,324	350,419
Consumer Portfolio
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	426,561
Term Loans Amortized Cost Basis by Origination Year, 2019	265,698
Term Loans Amortized Cost Basis by Origination Year, 2018	193,644
Term Loans Amortized Cost Basis by Origination Year, 2017	126,506
Term Loans Amortized Cost Basis by Origination Year, 2016	132,132
Term Loans Amortized Cost Basis by Origination Year, Prior	311,826
Financing Receivable, Revolving	612,549
Loans, Total	2,068,916
Purchased Impaired
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		86,681
Purchased Impaired | Construction and Land Development
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		10,944
Purchased Impaired | Commercial Real Estate - Owner Occupied
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		27,438
Purchased Impaired | Commercial Real Estate - Non-Owner Occupied
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		14,565
Purchased Impaired | Multifamily Real Estate
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		94
Purchased Impaired | Commercial and Industrial
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		1,579
Purchased Impaired | Residential 1-4 Family - Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		12,205
Purchased Impaired | Residential 1-4 Family - Consumer
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		14,713
Purchased Impaired | Residential 1-4 Family - Revolving
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		4,127
Purchased Impaired | Consumer
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		668
Purchased Impaired | Auto
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		$ 4
Current | Residential 1-4 Family - Consumer
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	213,763
Term Loans Amortized Cost Basis by Origination Year, 2019	75,133
Term Loans Amortized Cost Basis by Origination Year, 2018	64,299
Term Loans Amortized Cost Basis by Origination Year, 2017	68,320
Term Loans Amortized Cost Basis by Origination Year, 2016	102,123
Term Loans Amortized Cost Basis by Origination Year, Prior	269,203
Financing Receivable, Revolving	11
Loans, Total	792,852
Current | Residential 1-4 Family - Revolving
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	13,217
Term Loans Amortized Cost Basis by Origination Year, 2019	3,916
Term Loans Amortized Cost Basis by Origination Year, 2018	1,593
Term Loans Amortized Cost Basis by Origination Year, 2017	300
Term Loans Amortized Cost Basis by Origination Year, 2016	0
Term Loans Amortized Cost Basis by Origination Year, Prior	636
Financing Receivable, Revolving	567,860
Loans, Total	587,522
Current | Consumer
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	26,498
Term Loans Amortized Cost Basis by Origination Year, 2019	68,208
Term Loans Amortized Cost Basis by Origination Year, 2018	67,041
Term Loans Amortized Cost Basis by Origination Year, 2017	22,464
Term Loans Amortized Cost Basis by Origination Year, 2016	9,997
Term Loans Amortized Cost Basis by Origination Year, Prior	15,893
Financing Receivable, Revolving	35,450
Loans, Total	245,551
Current | Auto
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	171,051
Term Loans Amortized Cost Basis by Origination Year, 2019	115,319
Term Loans Amortized Cost Basis by Origination Year, 2018	55,886
Term Loans Amortized Cost Basis by Origination Year, 2017	32,555
Term Loans Amortized Cost Basis by Origination Year, 2016	17,081
Term Loans Amortized Cost Basis by Origination Year, Prior	6,314
Financing Receivable, Revolving	0
Loans, Total	398,206
Current | Consumer Portfolio
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	424,529
Term Loans Amortized Cost Basis by Origination Year, 2019	262,576
Term Loans Amortized Cost Basis by Origination Year, 2018	188,819
Term Loans Amortized Cost Basis by Origination Year, 2017	123,639
Term Loans Amortized Cost Basis by Origination Year, 2016	129,201
Term Loans Amortized Cost Basis by Origination Year, Prior	292,046
Financing Receivable, Revolving	603,321
Loans, Total	2,024,131
30-59 Days Past Due | Residential 1-4 Family - Consumer
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	678
Term Loans Amortized Cost Basis by Origination Year, 2019	181
Term Loans Amortized Cost Basis by Origination Year, 2018	2,243
Term Loans Amortized Cost Basis by Origination Year, 2017	516
Term Loans Amortized Cost Basis by Origination Year, 2016	457
Term Loans Amortized Cost Basis by Origination Year, Prior	6,107
Financing Receivable, Revolving	0
Loans, Total	10,182
30-59 Days Past Due | Residential 1-4 Family - Revolving
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	70
Term Loans Amortized Cost Basis by Origination Year, 2019	0
Term Loans Amortized Cost Basis by Origination Year, 2018	0
Term Loans Amortized Cost Basis by Origination Year, 2017	0
Term Loans Amortized Cost Basis by Origination Year, 2016	0
Term Loans Amortized Cost Basis by Origination Year, Prior	0
Financing Receivable, Revolving	2,905
Loans, Total	2,975
30-59 Days Past Due | Consumer
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	35
Term Loans Amortized Cost Basis by Origination Year, 2019	252
Term Loans Amortized Cost Basis by Origination Year, 2018	504
Term Loans Amortized Cost Basis by Origination Year, 2017	98
Term Loans Amortized Cost Basis by Origination Year, 2016	15
Term Loans Amortized Cost Basis by Origination Year, Prior	143
Financing Receivable, Revolving	119
Loans, Total	1,166
30-59 Days Past Due | Auto
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	239
Term Loans Amortized Cost Basis by Origination Year, 2019	467
Term Loans Amortized Cost Basis by Origination Year, 2018	543
Term Loans Amortized Cost Basis by Origination Year, 2017	478
Term Loans Amortized Cost Basis by Origination Year, 2016	197
Term Loans Amortized Cost Basis by Origination Year, Prior	152
Financing Receivable, Revolving	0
Loans, Total	2,076
30-59 Days Past Due | Consumer Portfolio
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	1,022
Term Loans Amortized Cost Basis by Origination Year, 2019	900
Term Loans Amortized Cost Basis by Origination Year, 2018	3,290
Term Loans Amortized Cost Basis by Origination Year, 2017	1,092
Term Loans Amortized Cost Basis by Origination Year, 2016	669
Term Loans Amortized Cost Basis by Origination Year, Prior	6,402
Financing Receivable, Revolving	3,024
Loans, Total	16,399
60-89 Days Past Due | Residential 1-4 Family - Consumer
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	156
Term Loans Amortized Cost Basis by Origination Year, 2019	0
Term Loans Amortized Cost Basis by Origination Year, 2018	57
Term Loans Amortized Cost Basis by Origination Year, 2017	679
Term Loans Amortized Cost Basis by Origination Year, 2016	0
Term Loans Amortized Cost Basis by Origination Year, Prior	641
Financing Receivable, Revolving	0
Loans, Total	1,533
60-89 Days Past Due | Residential 1-4 Family - Revolving
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	53
Term Loans Amortized Cost Basis by Origination Year, 2019	0
Term Loans Amortized Cost Basis by Origination Year, 2018	0
Term Loans Amortized Cost Basis by Origination Year, 2017	0
Term Loans Amortized Cost Basis by Origination Year, 2016	0
Term Loans Amortized Cost Basis by Origination Year, Prior	0
Financing Receivable, Revolving	991
Loans, Total	1,044
60-89 Days Past Due | Consumer
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	28
Term Loans Amortized Cost Basis by Origination Year, 2019	176
Term Loans Amortized Cost Basis by Origination Year, 2018	317
Term Loans Amortized Cost Basis by Origination Year, 2017	23
Term Loans Amortized Cost Basis by Origination Year, 2016	0
Term Loans Amortized Cost Basis by Origination Year, Prior	3
Financing Receivable, Revolving	3
Loans, Total	550
60-89 Days Past Due | Auto
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	124
Term Loans Amortized Cost Basis by Origination Year, 2019	150
Term Loans Amortized Cost Basis by Origination Year, 2018	0
Term Loans Amortized Cost Basis by Origination Year, 2017	59
Term Loans Amortized Cost Basis by Origination Year, 2016	26
Term Loans Amortized Cost Basis by Origination Year, Prior	17
Financing Receivable, Revolving	0
Loans, Total	376
60-89 Days Past Due | Consumer Portfolio
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	361
Term Loans Amortized Cost Basis by Origination Year, 2019	326
Term Loans Amortized Cost Basis by Origination Year, 2018	374
Term Loans Amortized Cost Basis by Origination Year, 2017	761
Term Loans Amortized Cost Basis by Origination Year, 2016	26
Term Loans Amortized Cost Basis by Origination Year, Prior	661
Financing Receivable, Revolving	994
Loans, Total	3,503
90+ Days Past Due | Residential 1-4 Family - Consumer
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	608
Term Loans Amortized Cost Basis by Origination Year, 2019	1,696
Term Loans Amortized Cost Basis by Origination Year, 2018	23
Term Loans Amortized Cost Basis by Origination Year, 2017	0
Term Loans Amortized Cost Basis by Origination Year, 2016	1,246
Term Loans Amortized Cost Basis by Origination Year, Prior	2,126
Financing Receivable, Revolving	0
Loans, Total	5,699
90+ Days Past Due | Residential 1-4 Family - Revolving
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	0
Term Loans Amortized Cost Basis by Origination Year, 2019	0
Term Loans Amortized Cost Basis by Origination Year, 2018	0
Term Loans Amortized Cost Basis by Origination Year, 2017	0
Term Loans Amortized Cost Basis by Origination Year, 2016	0
Term Loans Amortized Cost Basis by Origination Year, Prior	0
Financing Receivable, Revolving	826
Loans, Total	826
90+ Days Past Due | Consumer
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	5
Term Loans Amortized Cost Basis by Origination Year, 2019	84
Term Loans Amortized Cost Basis by Origination Year, 2018	242
Term Loans Amortized Cost Basis by Origination Year, 2017	4
Term Loans Amortized Cost Basis by Origination Year, 2016	0
Term Loans Amortized Cost Basis by Origination Year, Prior	56
Financing Receivable, Revolving	3
Loans, Total	394
90+ Days Past Due | Auto
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	6
Term Loans Amortized Cost Basis by Origination Year, 2019	23
Term Loans Amortized Cost Basis by Origination Year, 2018	53
Term Loans Amortized Cost Basis by Origination Year, 2017	58
Term Loans Amortized Cost Basis by Origination Year, 2016	15
Term Loans Amortized Cost Basis by Origination Year, Prior	11
Financing Receivable, Revolving	0
Loans, Total	166
90+ Days Past Due | Consumer Portfolio
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	619
Term Loans Amortized Cost Basis by Origination Year, 2019	1,803
Term Loans Amortized Cost Basis by Origination Year, 2018	318
Term Loans Amortized Cost Basis by Origination Year, 2017	62
Term Loans Amortized Cost Basis by Origination Year, 2016	1,261
Term Loans Amortized Cost Basis by Origination Year, Prior	2,193
Financing Receivable, Revolving	829
Loans, Total	7,085
Nonaccrual | Residential 1-4 Family - Consumer
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	0
Term Loans Amortized Cost Basis by Origination Year, 2019	0
Term Loans Amortized Cost Basis by Origination Year, 2018	696
Term Loans Amortized Cost Basis by Origination Year, 2017	851
Term Loans Amortized Cost Basis by Origination Year, 2016	887
Term Loans Amortized Cost Basis by Origination Year, Prior	10,166
Financing Receivable, Revolving	0
Loans, Total	12,600
Nonaccrual | Residential 1-4 Family - Revolving
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	0
Term Loans Amortized Cost Basis by Origination Year, 2019	0
Term Loans Amortized Cost Basis by Origination Year, 2018	21
Term Loans Amortized Cost Basis by Origination Year, 2017	0
Term Loans Amortized Cost Basis by Origination Year, 2016	0
Term Loans Amortized Cost Basis by Origination Year, Prior	227
Financing Receivable, Revolving	4,381
Loans, Total	4,629
Nonaccrual | Consumer
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	0
Term Loans Amortized Cost Basis by Origination Year, 2019	0
Term Loans Amortized Cost Basis by Origination Year, 2018	0
Term Loans Amortized Cost Basis by Origination Year, 2017	0
Term Loans Amortized Cost Basis by Origination Year, 2016	0
Term Loans Amortized Cost Basis by Origination Year, Prior	69
Financing Receivable, Revolving	0
Loans, Total	69
Nonaccrual | Auto
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	30
Term Loans Amortized Cost Basis by Origination Year, 2019	93
Term Loans Amortized Cost Basis by Origination Year, 2018	126
Term Loans Amortized Cost Basis by Origination Year, 2017	101
Term Loans Amortized Cost Basis by Origination Year, 2016	88
Term Loans Amortized Cost Basis by Origination Year, Prior	62
Financing Receivable, Revolving	0
Loans, Total	500
Nonaccrual | Consumer Portfolio
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	30
Term Loans Amortized Cost Basis by Origination Year, 2019	93
Term Loans Amortized Cost Basis by Origination Year, 2018	843
Term Loans Amortized Cost Basis by Origination Year, 2017	952
Term Loans Amortized Cost Basis by Origination Year, 2016	975
Term Loans Amortized Cost Basis by Origination Year, Prior	10,524
Financing Receivable, Revolving	4,381
Loans, Total	$ 17,798

LOANS AND ALLOWANCE FOR LOAN_13

LOANS AND ALLOWANCE FOR LOAN LOSSES (Schedule of Acquired Loan Portfolio and Accretable Yield) (Details) - Purchased Impaired $ in Thousands	12 Months Ended
	Dec. 31, 2019USD ($)
Accretable Yield
Balance at beginning of period	$ 31,201
Additions	5,060
Accretion	(13,432)
Reclass of nonaccretable difference due to improvement in expected cash flows	4,485
Measurement period adjustment	631
Other, net	3,329
Balance at end of period	$ 31,274

PREMISES AND EQUIPMENT (Narrati

PREMISES AND EQUIPMENT (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Abstract]
Depreciation expense	$ 15.2	$ 15	$ 13.6

PREMISES AND EQUIPMENT (Summary

PREMISES AND EQUIPMENT (Summary of Bank Premises and Equipment) (Details) - USD ($)	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Total	$ 276,067,000	$ 263,382,000
Accumulated depreciation and amortization	(112,238,000)	(102,309,000)
Bank premises and equipment, net	163,829,000	161,073,000
Land
Property, Plant and Equipment [Line Items]
Total	39,845,000	44,578,000
Land Improvements and Buildings
Property, Plant and Equipment [Line Items]
Total	129,497,000	123,189,000
Leasehold Improvements
Property, Plant and Equipment [Line Items]
Total	24,037,000	20,597,000
Furniture and Equipment
Property, Plant and Equipment [Line Items]
Total	80,191,000	71,469,000
Construction in Progress
Property, Plant and Equipment [Line Items]
Total	$ 2,497,000	$ 3,549,000

GOODWILL AND INTANGIBLE ASSET_2

GOODWILL AND INTANGIBLE ASSETS (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Impairment of goodwill or intangible assets	$ 0
Intangible assets, amortization expense	$ 16,574	$ 18,521	$ 12,839
Minimum
Finite-Lived Intangible Assets [Line Items]
Intangible assets, amortization period (years)	4 years
Maximum
Finite-Lived Intangible Assets [Line Items]
Intangible assets, amortization period (years)	10 years
Core Deposits | Minimum
Finite-Lived Intangible Assets [Line Items]
Intangible assets, amortization period (years)	4 years
Core Deposits | Maximum
Finite-Lived Intangible Assets [Line Items]
Intangible assets, amortization period (years)	10 years
Other Amortizable Intangibles | Minimum
Finite-Lived Intangible Assets [Line Items]
Intangible assets, amortization period (years)	4 years
Other Amortizable Intangibles | Maximum
Finite-Lived Intangible Assets [Line Items]
Intangible assets, amortization period (years)	10 years
Core Deposits and Other Intangible Assets
Finite-Lived Intangible Assets [Line Items]
Intangible assets, amortization expense	$ 16,600	$ 18,500	$ 12,800

GOODWILL AND INTANGIBLE ASSET_3

GOODWILL AND INTANGIBLE ASSETS (Information Concerning Intangible Assets with Finite Life) (Details) - USD ($)	Dec. 31, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Total estimated amortization expense	$ 57,185,000
Core Deposits
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	135,300,000	$ 135,300,000
Accumulated Amortization	88,109,000	73,336,000
Total estimated amortization expense	47,191,000	61,964,000
Other Amortizable Intangibles
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	15,240,000	15,349,000
Accumulated Amortization	5,246,000	3,644,000
Total estimated amortization expense	$ 9,994,000	$ 11,705,000

GOODWILL AND INTANGIBLE ASSET_4

GOODWILL AND INTANGIBLE ASSETS (Estimated Remaining Amortization Expense of Intangibles) (Details)	Dec. 31, 2020USD ($)
Estimated Remaining Amortization of Intangibles
2021	$ 13,874,000
2022	11,490,000
2023	9,688,000
2024	7,818,000
Thereafter	6,221,000
Thereafter	8,094,000
Total estimated amortization expense	$ 57,185,000

LEASES (Narrative) (Details)

LEASES (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Jan. 01, 2019
Lessor Disclosure [Abstract]
Residual assets covered by residual value guarantees	$ 14,700
Net Investment in Lease	146,000
Sales-type and direct financing leases, lease receivables	141,180
Sales-type and direct financing leases, unguaranteed residuals	4,800
Sales-type and direct financing leases, lease income	2,000	$ 0
Lessee Disclosure [Abstract]
Operating lease, right-of-use asset	48,051	54,941
Lease liabilities	58,901	$ 66,052
Lessee, operating lease, lease not yet commenced, amount	$ 0
Sale leaseback transaction, number of transactions (transaction)	0
Minimum
Lessor Disclosure [Abstract]
Lessor sales-type and direct financing lease, term of contract	31 months
Maximum
Lessor Disclosure [Abstract]
Lessor sales-type and direct financing lease, term of contract	125 months
Lessee Disclosure [Abstract]
Lessee, operating lease, remaining lease term (years)	25 years
Accounting Standards Update 2016-02
Lessee Disclosure [Abstract]
Operating lease, right-of-use asset			$ 48,900
Lease liabilities			$ 53,200

LEASES (Lessee Lease Portfolio

LEASES (Lessee Lease Portfolio and Other Supplemental Lease Information) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Lessee, Operating Lease
Right-of-use assets	$ 48,051	$ 54,941
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Other Assets	Other Assets
Lease liabilities	$ 58,901	$ 66,052
Operating Lease, Liability, Statement of Financial Position [Extensible List]	Other Liabilities	Other Liabilities
Weighted average remaining lease term (years)	7 years 3 months 7 days	7 years 4 months 9 days
Weighted average discount rate, percent	2.66%	2.69%
Lessee, Finance Lease
Right-of-use-assets	$ 7,425
Lease liabilities	$ 10,621
Weighted-average remaining lease term (years)	8 years 29 days
Weighted-average discount rate, percent	1.17%

LEASES (Other Lease Information

LEASES (Other Lease Information) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Operating Cash Flows from Finance Leases	$ 72	$ 0
Operating Cash Flows from Operating Leases	13,491	13,697
Right-of-use assets obtained in exchange for lease obligations, operating lease	4,577	8,065
Right-of-use assets obtained in exchange for lease obligations, finance leases	$ 10,549	$ 0

LEASES (Lease Cost Information)

LEASES (Lease Cost Information) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Net Operating Lease Cost	$ 11,006	$ 11,526
Finance Lease Cost: Amortization of right-of-use assets	536	0
Finance Lease Cost: Interest on lease liabilities	72	0
Total Lease Cost	$ 11,614	$ 11,526

LEASES (Maturities of Lessor an

LEASES (Maturities of Lessor and Lessee Arrangements Outstanding) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Lessor - Sales-type and Direct Financing Lease Maturities
2021	$ 30,206
2022	30,969
2023	29,306
2024	27,355
2025	18,540
Thereafter	14,329
Total undiscounted cash flows	150,705
Less: Adjustments	9,525
Total	141,180
Lessee - Operating Lease Maturities
2021	11,912
2022	10,764
2023	9,903
2024	8,903
2025	6,643
Thereafter	17,196
Total undiscounted cash flows	65,321
Less: Adjustments	6,420
Total	58,901	$ 66,052
Lessee - Finance Lease Maturities
2021	1,261
2022	1,292
2023	1,325
2024	1,358
2025	1,392
Thereafter	4,515
Total undiscounted cash flows	11,143
Less: Adjustments	522
Total	$ 10,621

DEPOSITS (Narrative) (Details)

DEPOSITS (Narrative) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Cash and Cash Equivalents [Line Items]
Time deposits held in Certificates of Deposit	$ 2,580,451
Deposit overdrafts as other commercial/consumer loans	2,600	$ 2,600
CDARS
Cash and Cash Equivalents [Line Items]
Time deposits held in Certificates of Deposit	$ 64,200	$ 73,900

DEPOSITS (Schedule of Deposits

DEPOSITS (Schedule of Deposits by Type) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Deposits, Interest-bearing and Noninterest-bearing, Alternative [Abstract]
NOW accounts	$ 3,621,181	$ 2,905,714
Money market accounts	4,248,335	3,951,856
Savings accounts	904,095	727,847
Time deposits of $250,000 and over	654,224	684,797
Other time deposits	1,926,227	2,064,628
Total interest-bearing deposits	$ 11,354,062	$ 10,334,842

DEPOSITS (Scheduled Maturities

DEPOSITS (Scheduled Maturities of Time Deposits) (Details) $ in Thousands	Dec. 31, 2020USD ($)
Deposits, Interest-bearing and Noninterest-bearing, Alternative [Abstract]
2021	$ 1,846,844
2022	369,810
2023	160,021
2024	171,968
2025	31,250
Thereafter	558
Total scheduled maturities of time deposits	$ 2,580,451

BORROWINGS (Short-Term Borrowin

BORROWINGS (Short-Term Borrowings) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Debt Disclosure [Abstract]
Securities sold under agreements to repurchase	$ 100,888,000	$ 66,053,000
Federal Funds Purchased	150,000,000	0
FHLB Advances	100,000,000	370,200,000
Total short-term borrowings	350,888,000	436,253,000
Average outstanding balance during the period	$ 213,932,000	$ 673,116,000
Average interest rate (during the period)	0.79%	2.30%
Average interest rate at end of period	0.13%	1.52%

BORROWINGS (Narrative) (Details

BORROWINGS (Narrative) (Details) - USD ($) $ in Thousands	Aug. 29, 2019	Feb. 01, 2019	Aug. 23, 2012	Dec. 31, 2020	Nov. 30, 2020	Dec. 31, 2019
Subordinated Borrowing [Line Items]
Remaining available balance for the federal funds lines				$ 847,000		$ 682,000
Maximum collateral dependent line of credit with the FHLB				6,000,000		5,200,000
Subordinated debt redeemed					$ 8,500
Prepayment of long-term FHLB advances				550,000
FHLB advances, prepayment penalty	$ 7,400		$ 19,600	31,200
Remaining borrowing capacity				25,000		25,000
Trust Preferred Capital Notes
Subordinated Borrowing [Line Items]
Remaining fair value discount on acquired notes				14,100		14,900
Long-term debt borrowings				155,159
Subordinated Debt
Subordinated Borrowing [Line Items]
Remaining fair value discount on acquired notes				1,200		$ 1,400
Long-term debt borrowings				150,000
StellarOne Bank and Xenith | Trust Preferred Capital Notes
Subordinated Borrowing [Line Items]
Trust preferred capital notes principal balance				58,500
Trust preferred securities acquired				$ 87,000
Access National Bank
Subordinated Borrowing [Line Items]
Trust preferred securities acquired		$ 5,000

BORROWINGS (Long-Term Borrowing

BORROWINGS (Long-Term Borrowings) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Trust Preferred Capital Securities	$ 150,500	$ 150,500
FHLB Advances	200,000	780,000
Subordinated Debt	150,000	158,500
Fair Value Premium (Discount)	(15,330)	(16,164)
Investment in Trust Preferred Capital Securities	4,659	4,659
Total Long-term Borrowings	489,829	1,077,495
Remaining borrowing capacity	25,000	25,000
Trust Preferred Capital Notes
Debt Instrument [Line Items]
Remaining issuance discount on debt	14,100	14,900
Statutory Trust I
Debt Instrument [Line Items]
Trust Preferred Capital Securities	22,500	22,500
Investment in Trust Preferred Capital Securities	$ 696	$ 696
Spread to 3-Month LIBOR	2.75%	2.75%
Rate	2.99%	4.66%
Maturity date	Jun. 17, 2034	Jun. 17, 2034
Statutory Trust II
Debt Instrument [Line Items]
Trust Preferred Capital Securities	$ 36,000	$ 36,000
Investment in Trust Preferred Capital Securities	$ 1,114	$ 1,114
Spread to 3-Month LIBOR	1.40%	1.40%
Rate	1.64%	3.31%
Maturity date	Jun. 15, 2036	Jun. 15, 2036
VFG Limited Liability Trust I Indenture
Debt Instrument [Line Items]
Trust Preferred Capital Securities	$ 20,000	$ 20,000
Investment in Trust Preferred Capital Securities	$ 619	$ 619
Spread to 3-Month LIBOR	2.73%	2.73%
Rate	2.97%	4.64%
Maturity date	Mar. 18, 2034	Mar. 18, 2034
FNB Statutory Trust II Indenture
Debt Instrument [Line Items]
Trust Preferred Capital Securities	$ 12,000	$ 12,000
Investment in Trust Preferred Capital Securities	$ 372	$ 372
Spread to 3-Month LIBOR	3.10%	3.10%
Rate	3.34%	5.01%
Maturity date	Jun. 26, 2033	Jun. 26, 2033
Gateway Capital Statutory Trust I
Debt Instrument [Line Items]
Trust Preferred Capital Securities	$ 8,000	$ 8,000
Investment in Trust Preferred Capital Securities	$ 248	$ 248
Spread to 3-Month LIBOR	3.10%	3.10%
Rate	3.34%	5.01%
Maturity date	Sep. 17, 2033	Sep. 17, 2033
Gateway Capital Statutory Trust II
Debt Instrument [Line Items]
Trust Preferred Capital Securities	$ 7,000	$ 7,000
Investment in Trust Preferred Capital Securities	$ 217	$ 217
Spread to 3-Month LIBOR	2.65%	2.65%
Rate	2.89%	4.56%
Maturity date	Jun. 17, 2034	Jun. 17, 2034
Gateway Capital Statutory Trust III
Debt Instrument [Line Items]
Trust Preferred Capital Securities	$ 15,000	$ 15,000
Investment in Trust Preferred Capital Securities	$ 464	$ 464
Spread to 3-Month LIBOR	1.50%	1.50%
Rate	1.74%	3.41%
Maturity date	May 30, 2036	May 30, 2036
Gateway Capital Statutory Trust IV
Debt Instrument [Line Items]
Trust Preferred Capital Securities	$ 25,000	$ 25,000
Investment in Trust Preferred Capital Securities	$ 774	$ 774
Spread to 3-Month LIBOR	1.55%	1.55%
Rate	1.79%	3.46%
Maturity date	Jul. 30, 2037	Jul. 30, 2037
MFC Capital Trust II
Debt Instrument [Line Items]
Trust Preferred Capital Securities	$ 5,000	$ 5,000
Investment in Trust Preferred Capital Securities	$ 155	$ 155
Spread to 3-Month LIBOR	2.85%	2.85%
Rate	3.09%	4.76%
Maturity date	Jan. 23, 2034	Jan. 23, 2034
Subordinated Debt
Debt Instrument [Line Items]
Remaining issuance discount on debt	$ 1,200	$ 1,400
2025 Subordinate Debt
Debt Instrument [Line Items]
Subordinated Debt		$ 8,500
Rate		6.75%
Maturity date		Jun. 30, 2025
2026 Subordinate Debt
Debt Instrument [Line Items]
Subordinated Debt	$ 150,000	$ 150,000
Rate	5.00%	5.00%
Maturity date	Dec. 15, 2026	Dec. 15, 2026
2026 Subordinate Debt | LIBOR | Scenario, Plan
Debt Instrument [Line Items]
Spread to 3-Month LIBOR	3.175%	3.175%
Adjustable Rate Credit One
Debt Instrument [Line Items]
FHLB Advances		$ 50,000
Spread to 3-Month LIBOR		(0.75%)
Rate		1.16%
Maturity date		Aug. 17, 2029
Adjustable Rate Credit Two
Debt Instrument [Line Items]
FHLB Advances		$ 200,000
Spread to 3-Month LIBOR		(0.50%)
Rate		1.41%
Maturity date		May 15, 2024
Adjustable Rate Credit Three
Debt Instrument [Line Items]
FHLB Advances		$ 150,000
Spread to 3-Month LIBOR		(0.75%)
Rate		1.16%
Maturity date		May 22, 2029
Adjustable Rate Credit Four
Debt Instrument [Line Items]
FHLB Advances		$ 50,000
Spread to 3-Month LIBOR		(0.75%)
Rate		1.16%
Maturity date		May 30, 2029
Adjustable Rate Credit Five
Debt Instrument [Line Items]
FHLB Advances		$ 100,000
Spread to 3-Month LIBOR		(0.75%)
Rate		1.16%
Maturity date		Jun. 21, 2029
Fixed Rate Convertible
Debt Instrument [Line Items]
FHLB Advances	$ 200,000	$ 200,000
Rate	1.78%	1.78%
Maturity date	Oct. 26, 2028	Oct. 26, 2028
Fixed Rate Hybrid One
Debt Instrument [Line Items]
FHLB Advances		$ 20,000
Rate		1.58%
Maturity date		May 18, 2020
Fixed Rate Credit
Debt Instrument [Line Items]
FHLB Advances		$ 10,000
Rate		1.54%
Maturity date		Oct. 2, 2020
Interest Rate Floor
Debt Instrument [Line Items]
FHLB interest rate		0.00%

BORROWINGS (Contractual Maturit

BORROWINGS (Contractual Maturities of Long-Term Debt) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Premium (Discount)
2021	$ (1,008)
2022	(1,030)
2023	(1,053)
2024	(1,078)
2025	(1,102)
Thereafter	(10,059)
Total Long-term borrowings	(15,330)	$ (16,164)
Total Long-term Borrowings
2021	(1,008)
2022	(1,030)
2023	(1,053)
2024	(1,078)
2025	(1,102)
Thereafter	495,100
Total Long-term Borrowings	489,829	$ 1,077,495
Trust Preferred Capital Notes
Total Long-term Borrowings, Gross
2021	0
2022	0
2023	0
2024	0
2025	0
Thereafter	155,159
Total Long-term borrowings	155,159
Subordinated Debt
Total Long-term Borrowings, Gross
2021	0
2022	0
2023	0
2024	0
2025	0
Thereafter	150,000
Total Long-term borrowings	150,000
FHLB Advances
Total Long-term Borrowings, Gross
2021	0
2022	0
2023	0
2024	0
2025	0
Thereafter	200,000
Total Long-term borrowings	$ 200,000

COMMITMENTS AND CONTINGENCIES_2

COMMITMENTS AND CONTINGENCIES (Narrative) (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Deposits with other financial institutions	$ 290.5	$ 131.4
Uninsured deposits with other financial institutions	36.4	11.6
Reserve for Off-balance Sheet Activities
Off-balance sheet credit risks, amount, liability	10.8	2.6
Cash Flow Hedging
Deposits with other financial institutions serves as collateral for cash flow hedge	$ 251	$ 116.8

COMMITMENTS AND CONTINGENCIES_3

COMMITMENTS AND CONTINGENCIES (Balances of Commitments and Contingencies) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Commitments with off-balance sheet risk:
Total commitments with off-balance sheet risk	$ 4,884,239	$ 4,900,930
Commitments to Extend Credit
Commitments with off-balance sheet risk:
Total commitments with off-balance sheet risk	4,722,412	4,691,272
Standby Letters of Credit
Commitments with off-balance sheet risk:
Total commitments with off-balance sheet risk	$ 161,827	$ 209,658

COMMITMENTS AND CONTINGENCIES_4

COMMITMENTS AND CONTINGENCIES (Schedule of Securities Pledged as Collateral) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Financial Instruments Owned and Pledged as Collateral [Line Items]
Cash	$ 251,047	$ 116,839
Loans	4,715,230	4,139,672
Total pledged assets	6,174,596	5,300,858
Available-for-sale Securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities pledged	763,236	733,995
Held-to-maturity Securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities pledged	445,083	310,352
Public deposits
Financial Instruments Owned and Pledged as Collateral [Line Items]
Cash	0	0
Loans	0	0
Total pledged assets	906,313	759,362
Public deposits | Available-for-sale Securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities pledged	469,864	467,266
Public deposits | Held-to-maturity Securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities pledged	436,449	292,096
Repurchase agreements
Financial Instruments Owned and Pledged as Collateral [Line Items]
Cash	0	0
Loans	0	0
Total pledged assets	116,876	86,901
Repurchase agreements | Available-for-sale Securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities pledged	116,876	79,299
Repurchase agreements | Held-to-maturity Securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities pledged	0	7,602
FHLB Advances
Financial Instruments Owned and Pledged as Collateral [Line Items]
Cash	0	0
Loans	4,374,383	3,846,934
Total pledged assets	4,426,706	3,910,746
FHLB Advances | Available-for-sale Securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities pledged	52,323	63,812
FHLB Advances | Held-to-maturity Securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities pledged	0	0
Derivatives
Financial Instruments Owned and Pledged as Collateral [Line Items]
Cash	251,047	116,839
Loans	0	0
Total pledged assets	251,832	118,099
Derivatives | Available-for-sale Securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities pledged	785	1,260
Derivatives | Held-to-maturity Securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities pledged	0	0
Fed Funds
Financial Instruments Owned and Pledged as Collateral [Line Items]
Cash	0	0
Loans	340,847	292,738
Total pledged assets	340,847	292,738
Fed Funds | Available-for-sale Securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities pledged	0
Fed Funds | Held-to-maturity Securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities pledged	0	0
Other purposes
Financial Instruments Owned and Pledged as Collateral [Line Items]
Cash	0	0
Loans	0	0
Total pledged assets	132,022	133,012
Other purposes | Available-for-sale Securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities pledged	123,388	122,358
Other purposes | Held-to-maturity Securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities pledged	$ 8,634	$ 10,654

DERIVATIVES (Narrative) (Detail

DERIVATIVES (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Derivatives, Fair Value [Line Items]
Unrealized gain (loss) within accumulated other comprehensive income, to be reclassified into earnings	$ (1,800)
Carrying Amount of Hedged Asset/(Liabilities)	50,000	$ 50,000
Cash Flow Hedging
Derivatives, Fair Value [Line Items]
Unrealized gain (loss) within accumulated other comprehensive income, to be reclassified into earnings	(1,800)	(9,000)
Loans
Derivatives, Fair Value [Line Items]
Carrying Amount of Hedged Asset/(Liabilities)	74,726	83,078
Cumulative Amount of Basis Adjustments Included in the Carrying Amount of the Hedged Asset/(Liabilities)	5,088	1,972
Loans | Fair Value Hedging
Derivatives, Fair Value [Line Items]
Aggregate notional amount of the hedged items	74,700	83,100
Fair value of aggregate notional amount of the hedged items, unrealized loss	(5,100)	(2,000)
Available-for-sale Securities
Derivatives, Fair Value [Line Items]
Carrying Amount of Hedged Asset/(Liabilities)	166,413	206,799
Cumulative Amount of Basis Adjustments Included in the Carrying Amount of the Hedged Asset/(Liabilities)	7,297	4,072
Available-for-sale Securities | Fair Value Hedging
Derivatives, Fair Value [Line Items]
Aggregate notional amount of the hedged items	50,000	50,000
Fair value of aggregate notional amount of the hedged items, unrealized loss	(7,300)	(4,100)
Cumulative Amount of Basis Adjustments Included in the Carrying Amount of the Hedged Asset/(Liabilities)	$ 7,300	$ 4,100

DERIVATIVES (Summary of the Der

DERIVATIVES (Summary of the Derivatives) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Pay Fixed - Receive Floating Interest Rate Swaps | Not Designated as accounting hedges
Summary of the derivative designated as a cash flow hedge
Derivative, amount	$ 2,356,453	$ 1,575,149
Asset	212	753
Liabilities	163,148	53,592
Pay Floating - Receive Fixed Interest Rate Swaps | Not Designated as accounting hedges
Summary of the derivative designated as a cash flow hedge
Derivative, amount	2,356,453	1,575,149
Asset	163,148	53,592
Liabilities	212	753
Cash Flow Hedging | Designated as accounting hedges
Summary of the derivative designated as a cash flow hedge
Derivative, amount	0	100,000
Asset	0	0
Liabilities	0	1,147
Fair Value Hedging | Designated as accounting hedges
Summary of the derivative designated as a cash flow hedge
Derivative, amount	124,726	133,078
Asset		182
Liabilities	$ 12,483	$ 6,256

DERIVATIVES (Summary of the Car

DERIVATIVES (Summary of the Carrying Value of the Company's Hedged Assets in Fair Value Hedges) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Derivative [Line Items]
Carrying Amount of Hedged Asset/(Liabilities)	$ 50,000	$ 50,000
Portfolio, last-of-layer, amortized cost	166,000	207,000
Available-for-sale Securities
Derivative [Line Items]
Carrying Amount of Hedged Asset/(Liabilities)	166,413	206,799
Cumulative Amount of Basis Adjustments Included in the Carrying Amount of the Hedged Asset/(Liabilities)	7,297	4,072
Available-for-sale Securities | Fair Value Hedging
Derivative [Line Items]
Cumulative Amount of Basis Adjustments Included in the Carrying Amount of the Hedged Asset/(Liabilities)	7,300	4,100
Fair value of aggregate notional amount of the hedged items, unrealized loss	(7,300)	(4,100)
Loans
Derivative [Line Items]
Carrying Amount of Hedged Asset/(Liabilities)	74,726	83,078
Cumulative Amount of Basis Adjustments Included in the Carrying Amount of the Hedged Asset/(Liabilities)	5,088	1,972
Loans | Fair Value Hedging
Derivative [Line Items]
Fair value of aggregate notional amount of the hedged items, unrealized loss	$ (5,100)	$ (2,000)

STOCKHOLDERS' EQUITY (Narrative

STOCKHOLDERS' EQUITY (Narrative) (Details) - USD ($)	Jun. 09, 2020	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Accumulated Other Comprehensive Income (Loss) [Line Items]
Preferred stock, shares authorized				500,000	500,000
Shares issued and sold				17,250
Preferred stock, shares outstanding				17,250	0
Net proceeds from issuance of preferred stock				$ 166,356,000	$ 0	$ 0
Accounting Standards Update 2017-12
Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassifications of unrealized gains (losses) on AFS		$ 400,000
Accounting Standards Update 2018-02
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified from AOCI into earnings		$ (107,000)
Accounting Standards Update 2016-01
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified from AOCI into earnings			$ (61,000)
Depositary Shares
Accumulated Other Comprehensive Income (Loss) [Line Items]
Shares issued and sold	6,900,000
Number of shares to be purchased upon the exercise of options	900,000
Preferred stock, liquidation preference (usd per share)	$ 25
Series A Preferred Stock
Accumulated Other Comprehensive Income (Loss) [Line Items]
Number of preferred stock represented by each depositary share	The Series A preferred stock is represented by depositary shares, each representing a 1/400th ownership interest in a share of Series A preferred stock
Preferred stock, liquidation preference (usd per share)	$ 10,000
Net proceeds from issuance of preferred stock	$ 166,400,000

STOCKHOLDERS' EQUITY (Change in

STOCKHOLDERS' EQUITY (Change in Accumulated Other Comprehensive Income) (Details) - USD ($)	3 Months Ended		12 Months Ended
	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance		$ 1,046,329,000	$ 2,513,102,000	$ 1,924,581,000	$ 1,046,329,000
Other comprehensive income (loss)			35,440,000	45,848,000	(9,343,000)
Ending balance			2,708,490,000	2,513,102,000	1,924,581,000
Unrealized Gains (Losses) on AFS Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance		1,874,000	37,877,000	(5,949,000)	1,874,000
Transfer of HTM securities to AFS securities					2,785,000
Other comprehensive income (loss) before reclassification			45,996,000	49,890,000	(10,711,000)
Amounts reclassified from AOCI into earnings			(9,712,000)	(6,064,000)	(362,000)
Other comprehensive income (loss)			36,284,000	43,826,000	(11,073,000)
Ending balance			74,161,000	37,877,000	(5,949,000)
Unrealized Gains (Losses) for AFS Securities Transferred to HTM
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance		2,705,000	75,000	95,000	2,705,000
Transfer of HTM securities to AFS securities					(2,785,000)
Other comprehensive income (loss) before reclassification			0	0	0
Amounts reclassified from AOCI into earnings			(20,000)	(20,000)	(408,000)
Other comprehensive income (loss)			(20,000)	(20,000)	(408,000)
Ending balance			55,000	75,000	95,000
Change in Fair Value of Cash Flow Hedges
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance		(4,361,000)	(782,000)	(3,393,000)	(4,361,000)
Transfer of HTM securities to AFS securities					0
Other comprehensive income (loss) before reclassification			(699,000)	(5,103,000)	1,087,000
Amounts reclassified from AOCI into earnings			1,481,000	7,714,000	975,000
Other comprehensive income (loss)			782,000	2,611,000	2,062,000
Ending balance				(782,000)	(3,393,000)
Unrealized Gains (Losses) on BOLI
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance		(1,102,000)	(1,595,000)	(1,026,000)	(1,102,000)
Transfer of HTM securities to AFS securities					0
Other comprehensive income (loss) before reclassification			(2,098,000)	(646,000)	0
Amounts reclassified from AOCI into earnings			492,000	77,000	76,000
Other comprehensive income (loss)			(1,606,000)	(569,000)	76,000
Ending balance			(3,201,000)	(1,595,000)	(1,026,000)
Accumulated Other Comprehensive Income (Loss)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance		(884,000)	35,575,000	(10,273,000)	(884,000)
Transfer of HTM securities to AFS securities					0
Other comprehensive income (loss) before reclassification			43,199,000	44,141,000	(9,624,000)
Amounts reclassified from AOCI into earnings			(7,759,000)	1,707,000	281,000
Other comprehensive income (loss)			35,440,000	45,848,000	(9,343,000)
Ending balance			71,015,000	35,575,000	(10,273,000)
Accounting Standards Update 2018-02
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Amounts reclassified from AOCI into earnings	$ 107,000
Accounting Standards Update 2016-01
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Amounts reclassified from AOCI into earnings		$ 61,000
Cumulative Effect, Period of Adoption, Adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance			(1,133,000)	(416,000)
Ending balance			$ (39,053,000)	(1,133,000)	(416,000)
Cumulative Effect, Period of Adoption, Adjustment | Unrealized Gains (Losses) on AFS Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance				465,000
Ending balance					465,000
Cumulative Effect, Period of Adoption, Adjustment | Unrealized Gains (Losses) for AFS Securities Transferred to HTM
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance				583,000
Ending balance					583,000
Cumulative Effect, Period of Adoption, Adjustment | Change in Fair Value of Cash Flow Hedges
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance				(1,094,000)
Ending balance					(1,094,000)
Cumulative Effect, Period of Adoption, Adjustment | Unrealized Gains (Losses) on BOLI
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance				0
Ending balance					0
Cumulative Effect, Period of Adoption, Adjustment | Accumulated Other Comprehensive Income (Loss)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance				$ (46,000)
Ending balance					$ (46,000)

REGULATORY MATTERS AND CAPITA_2

REGULATORY MATTERS AND CAPITAL (Schedule of Bank Capital and Ratio) (Details) $ in Thousands	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Common Equity Tier 1 capital to risk weighted assets, actual amount	$ 1,512,507	$ 1,437,908
Common Equity Tier 1 capital to risk weighted assets, actual ratio	10.26	10.24
Common Equity Tier 1 capital to risk weighted assets, required for capital adequacy purposes, amount	$ 663,380	$ 631,893
Common Equity Tier 1 capital to risk weighted assets, required for capital adequacy purposes, ratio	4.50	4.50
Tier 1 capital to risk weighted assets, actual amount	$ 1,678,863	$ 1,437,908
Tier 1 capital to risk weighted assets, actual ratio	11.39	10.24
Tier 1 capital to risk weighted assets, required for capital adequacy purposes, amount	$ 884,388	$ 842,524
Tier 1 capital ratio of risk-weighted assets, required for capital adequacy purposes, ratio	6	6
Total capital to risk weighted assets, actual amount	$ 2,063,356	$ 1,773,835
Total capital to risk weighted assets, actual ratio	14	12.63
Total capital to risk weighted assets, Required for Capital adequacy purposes, amount	$ 1,179,061	$ 1,123,569
Total capital to risk weighted assets, required for capital adequacy purposes, ratio	8	8
Tier 1 capital to average adjusted assets, actual amount	$ 1,678,863	$ 1,437,908
Tier 1 capital to average adjusted assets, actual ratio	8.95	8.79
Tier 1 capital to average adjusted assets, required for capital adequacy purposes, amount	$ 750,330	$ 654,338
Tier 1 capital to average adjusted assets, required for capital adequacy purposes, ratio	4	4
Atlantic Union Bank
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Common Equity Tier 1 capital to risk weighted assets, actual amount	$ 1,824,693	$ 1,704,426
Common Equity Tier 1 capital to risk weighted assets, actual ratio	12.42	12.18
Common Equity Tier 1 capital to risk weighted assets, required for capital adequacy purposes, amount	$ 661,121	$ 629,714
Common Equity Tier 1 capital to risk weighted assets, required for capital adequacy purposes, ratio	4.50	4.50
Common Equity Tier 1 capital to risk weighted assets, required in order to be well capitalized under PCA, amount	$ 954,952	$ 909,587
Common Equity Tier 1 capital to risk weighted assets, required in order to be well capitalized under PCA, ratio	6.50	6.50
Tier 1 capital to risk weighted assets, actual amount	$ 1,824,693	$ 1,704,426
Tier 1 capital to risk weighted assets, actual ratio	12.42	12.18
Tier 1 capital to risk weighted assets, required for capital adequacy purposes, amount	$ 881,494	$ 839,619
Tier 1 capital ratio of risk-weighted assets, required for capital adequacy purposes, ratio	6	6
Tier 1 capital to risk weighted assets, required in order to be well capitalized under PCA, amount	$ 1,175,326	$ 1,119,492
Tier 1 capital to risk weighted assets, required in order to be well capitalized under PCA, ratio	8	8
Total capital to risk weighted assets, actual amount	$ 1,924,016	$ 1,747,620
Total capital to risk weighted assets, actual ratio	13.09	12.48
Total capital to risk weighted assets, Required for Capital adequacy purposes, amount	$ 1,175,869	$ 1,120,269
Total capital to risk weighted assets, required for capital adequacy purposes, ratio	8	8
Total capital to risk weighted assets, required in order to be well capitalized under PCA, amount	$ 1,469,837	$ 1,400,337
Total capital to risk weighted assets, required in order to be well capitalized under PCA, ratio	10	10
Tier 1 capital to average adjusted assets, actual amount	$ 1,824,693	$ 1,704,426
Tier 1 capital to average adjusted assets, actual ratio	9.75	10.45
Tier 1 capital to average adjusted assets, required for capital adequacy purposes, amount	$ 748,592	$ 652,412
Tier 1 capital to average adjusted assets, required for capital adequacy purposes, ratio	4	4
Tier 1 capital to average adjusted assets, required in order to be well capitalized under PCA, amount	$ 935,740	$ 815,515
Tier 1 capital to average adjusted assets, required in order to be well capitalized under PCA, ratio	5	5

FAIR VALUE MEASUREMENTS (Narrat

FAIR VALUE MEASUREMENTS (Narrative) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2020USD ($)item	Dec. 31, 2019USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Minimum number of market participants | item	4,000
Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value | $	$ 12.7	$ 11.9

FAIR VALUE MEASUREMENTS (Schedu

FAIR VALUE MEASUREMENTS (Schedule of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
ASSETS
Securities available for sale, at fair value	$ 2,540,419	$ 1,945,445
Loans held for sale, at fair value	96,742	55,405
Fair value hedges		182
LIABILITIES
Cash flow hedges		1,147
Fair value hedges	12,483	6,256
Quoted Prices in Active Markets for Identical Assets Level 1
ASSETS
Securities available for sale, at fair value	0	0
Loans held for sale, at fair value	0	0
Fair value hedges		0
LIABILITIES
Cash flow hedges		0
Fair value hedges	0	0
Significant Other Observable Inputs Level 2
ASSETS
Securities available for sale, at fair value	2,540,419	1,945,445
Loans held for sale, at fair value	96,742	55,405
Fair value hedges		182
LIABILITIES
Cash flow hedges		1,147
Fair value hedges	12,483	6,256
Significant Unobservable Inputs Level 3
ASSETS
Securities available for sale, at fair value	0	0
Loans held for sale, at fair value	0	0
Fair value hedges		0
LIABILITIES
Cash flow hedges		0
Fair value hedges	0	0
Recurring
ASSETS
Loans held for sale, at fair value	96,742	55,405
Interest rate swap	163,360	54,345
Fair value hedges		182
LIABILITIES
Interest rate swap	163,360	54,345
Cash flow hedges		1,147
Fair value hedges	12,483	6,256
Recurring | Quoted Prices in Active Markets for Identical Assets Level 1
ASSETS
Loans held for sale, at fair value	0	0
Interest rate swap	0	0
Fair value hedges		0
LIABILITIES
Interest rate swap	0	0
Cash flow hedges		0
Fair value hedges	0	0
Recurring | Significant Other Observable Inputs Level 2
ASSETS
Loans held for sale, at fair value	96,742	55,405
Interest rate swap	163,360	54,345
Fair value hedges		182
LIABILITIES
Interest rate swap	163,360	54,345
Cash flow hedges		1,147
Fair value hedges	12,483	6,256
Recurring | Significant Unobservable Inputs Level 3
ASSETS
Loans held for sale, at fair value	0	0
Interest rate swap	0	0
Fair value hedges		0
LIABILITIES
Interest rate swap	0	0
Cash flow hedges		0
Fair value hedges	0	0
U.S. government and agency securities
ASSETS
Securities available for sale, at fair value	13,394	21,320
U.S. government and agency securities | Recurring
ASSETS
Securities available for sale, at fair value	13,394	21,320
U.S. government and agency securities | Recurring | Quoted Prices in Active Markets for Identical Assets Level 1
ASSETS
Securities available for sale, at fair value	0	0
U.S. government and agency securities | Recurring | Significant Other Observable Inputs Level 2
ASSETS
Securities available for sale, at fair value	13,394	21,320
U.S. government and agency securities | Recurring | Significant Unobservable Inputs Level 3
ASSETS
Securities available for sale, at fair value	0	0
Obligations of states and political subdivisions
ASSETS
Securities available for sale, at fair value	837,326	447,091
Obligations of states and political subdivisions | Recurring
ASSETS
Securities available for sale, at fair value	837,326	447,091
Obligations of states and political subdivisions | Recurring | Quoted Prices in Active Markets for Identical Assets Level 1
ASSETS
Securities available for sale, at fair value	0	0
Obligations of states and political subdivisions | Recurring | Significant Other Observable Inputs Level 2
ASSETS
Securities available for sale, at fair value	837,326	447,091
Obligations of states and political subdivisions | Recurring | Significant Unobservable Inputs Level 3
ASSETS
Securities available for sale, at fair value	0	0
Corporate and other bonds
ASSETS
Securities available for sale, at fair value	151,078	135,959
Corporate and other bonds | Recurring
ASSETS
Securities available for sale, at fair value	151,078	135,959
Corporate and other bonds | Recurring | Quoted Prices in Active Markets for Identical Assets Level 1
ASSETS
Securities available for sale, at fair value	0	0
Corporate and other bonds | Recurring | Significant Other Observable Inputs Level 2
ASSETS
Securities available for sale, at fair value	151,078	135,959
Corporate and other bonds | Recurring | Significant Unobservable Inputs Level 3
ASSETS
Securities available for sale, at fair value	0	0
Total mortgage-back securities | Recurring
ASSETS
Securities available for sale, at fair value	1,536,996	1,337,996
Total mortgage-back securities | Recurring | Quoted Prices in Active Markets for Identical Assets Level 1
ASSETS
Securities available for sale, at fair value	0	0
Total mortgage-back securities | Recurring | Significant Other Observable Inputs Level 2
ASSETS
Securities available for sale, at fair value	1,536,996	1,337,996
Total mortgage-back securities | Recurring | Significant Unobservable Inputs Level 3
ASSETS
Securities available for sale, at fair value	0	0
Other securities
ASSETS
Securities available for sale, at fair value	1,625	3,079
Other securities | Recurring
ASSETS
Securities available for sale, at fair value	1,625	3,079
Other securities | Recurring | Quoted Prices in Active Markets for Identical Assets Level 1
ASSETS
Securities available for sale, at fair value	0	0
Other securities | Recurring | Significant Other Observable Inputs Level 2
ASSETS
Securities available for sale, at fair value	1,625	3,079
Other securities | Recurring | Significant Unobservable Inputs Level 3
ASSETS
Securities available for sale, at fair value	0	0
Interest Rate Swap
ASSETS
Interest rate swap	163,360	54,345
LIABILITIES
Interest rate swap	163,360	54,345
Interest Rate Swap | Quoted Prices in Active Markets for Identical Assets Level 1
ASSETS
Interest rate swap	0	0
LIABILITIES
Interest rate swap	0	0
Interest Rate Swap | Significant Other Observable Inputs Level 2
ASSETS
Interest rate swap	163,360	54,345
LIABILITIES
Interest rate swap	163,360	54,345
Interest Rate Swap | Significant Unobservable Inputs Level 3
ASSETS
Interest rate swap	0	0
LIABILITIES
Interest rate swap	$ 0	$ 0

FAIR VALUE MEASUREMENTS (Carryi

FAIR VALUE MEASUREMENTS (Carrying Values and Estimated Fair Values of the Company's Financial Instruments) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
ASSETS
Cash and cash equivalents	$ 493,294	$ 436,032
Securities available for sale, at fair value	2,540,419	1,945,445
HTM securities	619,765	603,503
Restricted stock	94,782	130,848
Loans held for sale, at fair value	96,742	55,405
Net loans	13,710,640	12,449,505
Derivatives:
Fair value hedges		182
Accrued interest receivable	75,757	52,721
Bank owned life insurance	326,892	322,917
LIABILITIES
Deposits	15,763,991	13,349,943
Borrowings	821,516	1,479,606
Accrued interest payable	2,516	6,108
Derivatives:
Cash flow hedges		1,147
Fair value hedges	12,483	6,256
Quoted Prices in Active Markets for Identical Assets Level 1
ASSETS
Cash and cash equivalents	493,294	436,032
Securities available for sale, at fair value	0	0
HTM securities	0	0
Restricted stock	0	0
Loans held for sale, at fair value	0	0
Net loans	0	0
Derivatives:
Fair value hedges		0
Accrued interest receivable	0	0
Bank owned life insurance	0	0
LIABILITIES
Deposits	0	0
Borrowings	0	0
Accrued interest payable	0	0
Derivatives:
Cash flow hedges		0
Fair value hedges	0	0
Significant Other Observable Inputs Level 2
ASSETS
Cash and cash equivalents	0	0
Securities available for sale, at fair value	2,540,419	1,945,445
HTM securities	606,496	585,820
Restricted stock	94,782	130,848
Loans held for sale, at fair value	96,742	55,405
Net loans	0	0
Derivatives:
Fair value hedges		182
Accrued interest receivable	75,757	52,721
Bank owned life insurance	326,892	322,917
LIABILITIES
Deposits	15,763,991	13,349,943
Borrowings	821,516	1,479,606
Accrued interest payable	2,516	6,108
Derivatives:
Cash flow hedges		1,147
Fair value hedges	12,483	6,256
Significant Unobservable Inputs Level 3
ASSETS
Cash and cash equivalents	0	0
Securities available for sale, at fair value	0	0
HTM securities	13,269	17,683
Restricted stock	0	0
Loans held for sale, at fair value	0	0
Net loans	13,710,640	12,449,505
Derivatives:
Fair value hedges		0
Accrued interest receivable	0	0
Bank owned life insurance	0	0
LIABILITIES
Deposits	0	0
Borrowings	0	0
Accrued interest payable	0	0
Derivatives:
Cash flow hedges		0
Fair value hedges	0	0
Interest Rate Swap
Derivatives:
Interest rate swap	163,360	54,345
Derivatives:
Interest rate swap	163,360	54,345
Interest Rate Swap | Quoted Prices in Active Markets for Identical Assets Level 1
Derivatives:
Interest rate swap	0	0
Derivatives:
Interest rate swap	0	0
Interest Rate Swap | Significant Other Observable Inputs Level 2
Derivatives:
Interest rate swap	163,360	54,345
Derivatives:
Interest rate swap	163,360	54,345
Interest Rate Swap | Significant Unobservable Inputs Level 3
Derivatives:
Interest rate swap	0	0
Derivatives:
Interest rate swap	0	0
Carrying Value
ASSETS
Cash and cash equivalents	493,294	436,032
Securities available for sale, at fair value	2,540,419	1,945,445
HTM securities	544,851	555,144
Restricted stock	94,782	130,848
Loans held for sale, at fair value	96,742	55,405
Net loans	13,860,774	12,568,642
Derivatives:
Fair value hedges		182
Accrued interest receivable	75,757	52,721
Bank owned life insurance	326,892	322,917
LIABILITIES
Deposits	15,722,765	13,304,981
Borrowings	840,717	1,513,748
Accrued interest payable	2,516	6,108
Derivatives:
Cash flow hedges		1,147
Fair value hedges	12,483	6,256
Carrying Value | Interest Rate Swap
Derivatives:
Interest rate swap	163,360	54,345
Derivatives:
Interest rate swap	$ 163,360	$ 54,345

REVENUE (Disaggregation of Reve

REVENUE (Disaggregation of Revenue) (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disaggregation of Revenue
Mortgage banking income		$ 25,857	$ 10,303	$ 0
Gains on securities transactions	[1],[2]	12,294	7,675	383
Bank owned life insurance income		9,554	8,311	7,198
Loan-related interest rate swap fees		15,306	14,126	3,554
Gain on Shore Premier sale		0	0	19,966
Other operating income		6,098	17,791	7,145
Total noninterest income		131,486	132,815	104,241
Noninterest income in Scope of Topic 606
Disaggregation of Revenue
Revenue from contract with customer		3,500	4,000	4,400
Overdraft fees
Disaggregation of Revenue
Revenue from contract with customer		17,792	24,092	21,052
Maintenance fees & other
Disaggregation of Revenue
Revenue from contract with customer		7,459	6,110	4,387
Other service charges, commissions and fees
Disaggregation of Revenue
Revenue from contract with customer		6,292	6,423	5,603
Interchange fees
Disaggregation of Revenue
Revenue from contract with customer		7,184	14,619	18,803
Trust asset management fees
Disaggregation of Revenue
Revenue from contract with customer		10,804	9,141	5,536
Registered advisor management fees
Disaggregation of Revenue
Revenue from contract with customer		8,657	10,107	6,589
Brokerage management fees
Disaggregation of Revenue
Revenue from contract with customer		4,189	$ 4,117	$ 4,025
Xenith
Disaggregation of Revenue
Life insurance proceeds		$ 9,800
[1]	Discontinued operations have an immaterial impact to the Company’s Consolidated Statements of Cash Flows. The change in goodwill impairment losses included in the Operating Activities section above are attributable to discontinued operations.
[2]	Loans held for sale activity is included in the Operating Activities section above. Due to the increased mortgage related activity during 2020 and 2019, the loans held for sale activity is segregated between originations and purchases of loans held for sale and proceeds from sales of loans held for sale. 2018 loans held for sale activity is included in the change in loans held for sale and is attributable to discontinued operations which has an immaterial impact on the Company’s Consolidated Statements of Cash Flows.

EMPLOYEE BENEFITS AND STOCK B_3

EMPLOYEE BENEFITS AND STOCK BASED COMPENSATION (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Apr. 20, 2015
Defined Benefit Plan Disclosure [Line Items]
Deferred compensation plans obligation to Board of Directors	$ 15,800,000	$ 15,700,000
Maximum term of stock options	10 years
Stock options granted	0
Vesting period of stock awards	5 years
Number of stock option awards exercised	46,278	56,619	72,743
Intrinsic value of stock options exercised	$ 555,000	$ 684,000	$ 1,900,000
Fair value of stock options exercised	1,600,000	2,100,000	2,800,000
Cash received from the exercise of stock options	1,000,000	1,400,000	983,000
Tax benefit from exercise of equity-based awards	$ 112,000	127,000	390,000
Restricted stock vesting percentage	33.33%
Intrinsic value of stock options outstanding	$ 798,340	$ 2,300,000	$ 656,000
Unamortized compensation costs	$ 10,990,000
Stock and Incentive Plan
Defined Benefit Plan Disclosure [Line Items]
Number of shares authorized to be issued, maximum	2,500,000
Number of shares available for future issuance	666,858
2011 Plan
Defined Benefit Plan Disclosure [Line Items]
Number of shares authorized to be issued, maximum				1,000,000
Restricted Stock
Defined Benefit Plan Disclosure [Line Items]
Restricted stock units, vesting terms	RSAs vest one-third on each of the first, second and third anniversaries from the date of the grant
Restricted Stock and Performance Stock Awards | Minimum
Defined Benefit Plan Disclosure [Line Items]
Vesting period of stock awards	3 years
Restricted Stock and Performance Stock Awards | Maximum
Defined Benefit Plan Disclosure [Line Items]
Vesting period of stock awards	4 years
1% through 3%
Defined Benefit Plan Disclosure [Line Items]
Percentage of employer's match for 401(k) plan	100.00%
1% through 3% | Minimum
Defined Benefit Plan Disclosure [Line Items]
Percentage of employee's gross pay for 401(k) plan	1.00%
1% through 3% | Maximum
Defined Benefit Plan Disclosure [Line Items]
Percentage of employee's gross pay for 401(k) plan	3.00%
4% through 5%
Defined Benefit Plan Disclosure [Line Items]
Percentage of employer's match for 401(k) plan	50.00%
4% through 5% | Minimum
Defined Benefit Plan Disclosure [Line Items]
Percentage of employee's gross pay for 401(k) plan	4.00%
4% through 5% | Maximum
Defined Benefit Plan Disclosure [Line Items]
Percentage of employee's gross pay for 401(k) plan	5.00%
Access National Bank
Defined Benefit Plan Disclosure [Line Items]
Maximum term of stock options		5 years
Vesting period of stock awards		4 years

EMPLOYEE BENEFITS AND STOCK B_4

EMPLOYEE BENEFITS AND STOCK BASED COMPENSATION (Payment Made for Employee Benefit Plans) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Employee Benefits and Share-based Compensation, Noncash [Abstract]
401(K) Plan	$ 6,265	$ 5,550	$ 4,592
ESOP	1,000	1,163	1,005
Cash	697	780	1,509
Total	$ 7,962	$ 7,493	$ 7,106

EMPLOYEE BENEFITS AND STOCK B_5

EMPLOYEE BENEFITS AND STOCK BASED COMPENSATION (Schedule of Recognized Stock-Based Compensation Expense) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Employee Benefits and Share-based Compensation, Noncash [Abstract]
Stock-based compensation expense	$ 9,258	$ 8,332	$ 6,132
Reduction of income tax expense	$ 1,944	$ 1,750	$ 1,287
Per share compensation cost	$ 0.09	$ 0.08	$ 0.07

EMPLOYEE BENEFITS AND STOCK B_6

EMPLOYEE BENEFITS AND STOCK BASED COMPENSATION (Summary of Stock Option Activity) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Stock Options (shares)
Number of Stock Options, Outstanding beginning balance	422,138
Number of Stock Options, Exercised	(46,278)	(56,619)	(72,743)
Number of Stock Options, Forfeited	(4,582)
Number of Stock Options, Expired	(22,618)
Number of Stock Options, Outstanding ending balance	348,660	422,138
Number of Stock Options, Exercisable	317,237
Weighted Average Exercise Price
Weighted Average Exercise Price, Outstanding, beginning balance (in dollars per share)	$ 32.48
Weighted Average Exercise Price, Exercised (in dollars per share)	22.04
Weighted Average Exercise Price, Forfeited (in dollars per share)	31.83
Weighted Average Exercise Price, Expired (in dollars per share)	33.40
Weighted Average Exercise Price, Outstanding, beginning balance (in dollars per share)	33.81	$ 32.48
Weighted Average Exercise Price, Exercisable (in dollars per share)	$ 34
Weighted Average Remaining Contractual Life, Outstanding	1 year 9 months 3 days
Weighted Average Remaining Contractual Life, Exercisable	1 year 7 months 17 days
Aggregate Intrinsic Value, Outstanding	$ 798,340	$ 2,300,000	$ 656,000
Aggregate Intrinsic Value, Exercisable	$ 764,501

EMPLOYEE BENEFITS AND STOCK B_7

EMPLOYEE BENEFITS AND STOCK BASED COMPENSATION (Summary of Nonvested Stock Activity) (Details)	12 Months Ended
	Dec. 31, 2020$ / sharesshares
Restricted Stock
Number of Shares of RSAs
Beginning balance (in shares) | shares	431,642
Granted (in shares) | shares	208,514
Net settle for taxes (in shares) | shares	(55,336)
Vested (in shares) | shares	(161,445)
Forfeited (in shares) | shares	(16,868)
Ending balance (in shares) | shares	406,507
Weighted Average Grant-Date Fair Value
Weighted Average Grant Date Fair Value, Beginning balance (in dollars per share) | $ / shares	$ 34.90
Weighted Average Grant Date Fair Value, Granted (in dollars per share) | $ / shares	33.63
Weighted Average Grant Date Fair Value, Net settle for taxes (in dollars per share) | $ / shares	36.40
Weighted Average Grant Date Fair Value, Vested (in dollars per share) | $ / shares	32.09
Weighted Average Grant Date Fair Value, Forfeited (in dollars per share) | $ / shares	34.19
Weighted Average Grant Date Fair Value, Ending balance (in dollars per share) | $ / shares	$ 35.61
Performance Stock
Number of Shares of RSAs
Beginning balance (in shares) | shares	144,709
Granted (in shares) | shares	108,302
Net settle for taxes (in shares) | shares	(14,186)
Vested (in shares) | shares	(38,922)
Forfeited (in shares) | shares	(2,093)
Ending balance (in shares) | shares	197,810
Weighted Average Grant-Date Fair Value
Weighted Average Grant Date Fair Value, Beginning balance (in dollars per share) | $ / shares	$ 37.24
Weighted Average Grant Date Fair Value, Granted (in dollars per share) | $ / shares	33.99
Weighted Average Grant Date Fair Value, Net settle for taxes (in dollars per share) | $ / shares	44.72
Weighted Average Grant Date Fair Value, Vested (in dollars per share) | $ / shares	39.80
Weighted Average Grant Date Fair Value, Forfeited (in dollars per share) | $ / shares	32.50
Weighted Average Grant Date Fair Value, Ending balance (in dollars per share) | $ / shares	$ 34.84

EMPLOYEE BENEFITS AND STOCK B_8

EMPLOYEE BENEFITS AND STOCK BASED COMPENSATION (Schedule of Performance Stock Units Valuation Assumptions) (Details)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Schedule of Performance Stock Units Valuation Assumptions
Dividend yield	2.83%	2.57%	2.25%
Expected life in years	2 years 10 months 9 days	2 years 10 months 9 days	2 years 10 months 9 days
Expected volatility	24.33%	24.04%	23.47%
Risk-free interest rate	1.35%	2.48%	2.38%

EMPLOYEE BENEFITS AND STOCK B_9

EMPLOYEE BENEFITS AND STOCK BASED COMPENSATION (Estimated Unamortized Compensation Expense Recognized in Future) (Details) $ in Thousands	Dec. 31, 2020USD ($)
Estimated unamortized compensation expense recognized in future
2021	$ 6,908
2022	3,602
2023	438
2024	42
Total	10,990
Restricted Stock
Estimated unamortized compensation expense recognized in future
2021	4,997
2022	2,579
2023	434
2024	42
Total	8,052
Performance Stock
Estimated unamortized compensation expense recognized in future
2021	1,844
2022	957
2023	0
2024	0
Total	2,801
Stock Options
Estimated unamortized compensation expense recognized in future
2021	67
2022	66
2023	4
2024	0
Total	$ 137

INCOME TAXES (Narrative) (Detai

INCOME TAXES (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Examination [Line Items]
Effective income taxes	15.10%	16.20%	16.70%
Tax credits	$ 3,000	$ 2,900	$ 1,100
Accruals for uncertain tax positions	0	$ 0
Federal
Income Tax Examination [Line Items]
Operating loss carryforwards	$ 165,200
Operating loss carryforwards, limitations on use	operating loss carryforwards of approximately $165.2 million, of which approximately $144.4 million under pre-2018 law can be carried forward 20 years, and $20.8 million that can be carried forward indefinitely
State
Income Tax Examination [Line Items]
Operating loss carryforwards	$ 334,100
Operating loss carryforwards, limitations on use	operating loss carryforwards of approximately $334.1 million, of which approximately $226.1 million will begin to expire after 2026, and $108 million that can be carried forward indefinitely.
Operating loss carryforward subject to expiration	$ 226,100
Operating loss carryforward not subject to expiration	$ 108,000
Operating loss carryforwards expiration date	Dec. 31, 2026
Pre-2018 | Federal
Income Tax Examination [Line Items]
Tax carryforward	$ 144,400
Post-2018 | Federal
Income Tax Examination [Line Items]
Tax carryforward	$ 20,800

INCOME TAXES (Schedule of Defer

INCOME TAXES (Schedule of Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Deferred tax assets:
Credit losses	$ 48,505	$ 18,938
Benefit plans	3,332	3,507
Acquisition accounting	10,038	16,021
Lease right-of-Use Asset	14,893	13,507
Stock grants	2,305	2,032
OREO	2,971	3,295
Securities available for sale	1,017	1,169
Net operating losses	47,463	55,023
Nonaccrual loans	2,011	3,243
Other	7,287	4,227
Total deferred tax assets	139,822	120,962
Deferred tax liabilities:
Acquisition accounting	16,271	19,815
Lease right-of-use liability	12,012	11,191
Premises and equipment	19,066	6,696
Securities available for sale	19,714	10,069
Other	674	511
Total deferred tax liabilities	67,737	48,282
Net deferred tax asset	$ 72,085	$ 72,680

INCOME TAXES (Provision for Inc

INCOME TAXES (Provision for Income Taxes Charged to Operations) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Deferred Tax Assets, Net [Abstract]
Current tax expense	$ 25,376	$ 22,500	$ 12,114
Deferred tax expense	2,690	15,057	17,902
Income tax expense	$ 28,066	$ 37,557	$ 30,016

INCOME TAXES (Schedule of Incom

INCOME TAXES (Schedule of Income Tax Expense, Difference in Income Tax Rate to Pretax Income) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Deferred Tax Assets, Net [Abstract]
Computed expected tax expense	$ 39,122	$ 48,564	$ 37,680
Tax-exempt interest income, net	(8,844)	(8,259)	(5,188)
State income tax benefit	(310)	(1,078)	(1,133)
Other, net	(1,902)	(1,670)	(1,343)
Income tax expense	$ 28,066	$ 37,557	$ 30,016

EARNINGS PER SHARE (Reconciliat

EARNINGS PER SHARE (Reconciliation of the Denominators of the Basic and Diluted EPS Computations) (Details) - USD ($) $ / shares in Units, $ in Thousands		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Net Income:
Income from continuing operations		$ 158,228	$ 193,698	$ 149,413
Income (loss) from discontinued operations		0	(170)	(3,165)
Net income	[1],[2]	158,228	193,528	146,248
Preferred Stock Dividends		5,658	0	0
Net Income available to common shareholders		$ 152,570	$ 193,528	$ 146,248
Weighted average shares outstanding, basic (in shares)		78,858,726	80,200,950	65,859,165
Dilutive effect of stock awards and warrants		17,000	63,000	50,000
Weighted average shares outstanding, diluted		78,875,668	80,263,557	65,908,573
Basic EPS:
EPS from continuing operations (dollar per share)		$ 1.93	$ 2.41	$ 2.27
EPS from discontinued operations (dollar per share)		0	0	(0.05)
EPS available to common stockholders (dollar per share)		1.93	2.41	2.22
Diluted EPS:
EPS from continuing operations (dollar per share)		1.93	2.41	2.27
EPS from discontinued operations (dollar per share)		0	0	(0.05)
EPS available to common stockholders (dollar per share)		$ 1.93	$ 2.41	$ 2.22
[1]	Discontinued operations have an immaterial impact to the Company’s Consolidated Statements of Cash Flows. The change in goodwill impairment losses included in the Operating Activities section above are attributable to discontinued operations.
[2]	Loans held for sale activity is included in the Operating Activities section above. Due to the increased mortgage related activity during 2020 and 2019, the loans held for sale activity is segregated between originations and purchases of loans held for sale and proceeds from sales of loans held for sale. 2018 loans held for sale activity is included in the change in loans held for sale and is attributable to discontinued operations which has an immaterial impact on the Company’s Consolidated Statements of Cash Flows.

SEGMENT REPORTING & DISCONTIN_3

SEGMENT REPORTING & DISCONTINUED OPERATIONS (Narrative) (Details)	3 Months Ended	12 Months Ended
	Mar. 31, 2018segment	Dec. 31, 2020segment	Dec. 31, 2019USD ($)
Segment Reporting [Abstract]
Number of reportable operating segments | segment	2	1
Assets of discontinued operations			$ 668,000
Liabilities of discontinued operations			$ 640,000

SEGMENT REPORTING & DISCONTIN_4

SEGMENT REPORTING & DISCONTINUED OPERATIONS (Information About Reportable Segments and Reconciliation) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Segment Reporting Information [Line Items]
Net interest income	$ 555,298	$ 537,872	$ 426,691
Provision for credit losses	87,141	21,092	13,736
Net interest income after provision for credit losses	468,157	516,780	412,955
Noninterest income	131,486	132,815	104,241
Noninterest expenses	413,349	418,340	337,767
Income before income taxes	0	(230)	(4,280)
Income tax expense (benefit)	0	(60)	(1,115)
Loss on discontinued operations	$ 0	(170)	(3,165)
Mortgage | Discontinued Operations
Segment Reporting Information [Line Items]
Net interest income			850
Provision for credit losses			(185)
Net interest income after provision for credit losses			1,035
Noninterest income		1	3,882
Noninterest expenses		231	9,197
Income before income taxes		(230)	(4,280)
Income tax expense (benefit)		(60)	(1,115)
Loss on discontinued operations		$ (170)	$ (3,165)

PARENT COMPANY FINANCIAL INFO_3

PARENT COMPANY FINANCIAL INFORMATION (Narrative) (Details) - Parent Company $ in Millions	Dec. 31, 2020USD ($)
Aggregate amount of unrestricted funds	$ 370.8
Aggregate amount of unrestricted funds percentage	13.69%

PARENT COMPANY FINANCIAL INFO_4

PARENT COMPANY FINANCIAL INFORMATION (CONDENSED BALANCE SHEETS) (Details) - USD ($)	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
ASSETS
Cash	$ 493,294,000	$ 436,032,000
Premises and equipment, net	163,829,000	161,073,000
Other assets	514,121,000	378,255,000
Total assets	19,628,449,000	17,562,990,000
LIABILITIES AND STOCKHOLDERS' EQUITY
Long-term borrowings	489,829,000	1,077,495,000
Other liabilities	356,477,000	231,159,000
Total liabilities	16,919,959,000	15,049,888,000
Total stockholders' equity	2,708,490,000	2,513,102,000	$ 1,924,581,000	$ 1,046,329,000
Total liabilities and stockholders' equity	19,628,449,000	17,562,990,000
Parent Company
ASSETS
Cash	116,748,000	5,283,000
Premises and equipment, net	10,435,000	10,568,000
Other assets	30,429,000	27,438,000
Investment in subsidiaries	2,858,608,000	2,786,842,000
Total assets	3,016,220,000	2,830,131,000
LIABILITIES AND STOCKHOLDERS' EQUITY
Long-term borrowings	148,806,000	157,155,000
Trust preferred capital notes	141,023,000	140,237,000
Other liabilities	17,901,000	19,637,000
Total liabilities	307,730,000	317,029,000
Total stockholders' equity	2,708,490,000	2,513,102,000
Total liabilities and stockholders' equity	$ 3,016,220,000	$ 2,830,131,000

PARENT COMPANY FINANCIAL INFO_5

PARENT COMPANY FINANCIAL INFORMATION (CONDENSED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME) (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income:
Interest and dividend income		$ 653,454	$ 699,332	$ 528,788
Other operating income		6,098	17,791	7,145
Expenses:
Interest expense		98,156	161,460	102,097
Other expenses		28,419	25,254	20,217
Income before income taxes		186,294	231,255	179,429
Income tax benefit		28,066	37,557	30,016
Net income	[1],[2]	158,228	193,528	146,248
Parent Company
Income:
Interest and dividend income		0	3	0
Dividends received from subsidiaries		97,880	160,033	50,750
Other operating income		1,338	1,484	2,719
Total income		99,218	161,520	53,469
Expenses:
Interest expense		13,506	15,935	15,253
Other expenses		8,249	11,434	13,782
Total expenses		21,755	27,369	29,035
Income before income taxes		77,463	134,151	24,434
Income tax benefit		(5,439)	(6,499)	(6,176)
Equity in undistributed net income from subsidiaries		75,326	52,878	115,638
Net income		158,228	193,528	146,248
Comprehensive income		$ 193,668	$ 239,376	$ 136,905
[1]	Discontinued operations have an immaterial impact to the Company’s Consolidated Statements of Cash Flows. The change in goodwill impairment losses included in the Operating Activities section above are attributable to discontinued operations.
[2]	Loans held for sale activity is included in the Operating Activities section above. Due to the increased mortgage related activity during 2020 and 2019, the loans held for sale activity is segregated between originations and purchases of loans held for sale and proceeds from sales of loans held for sale. 2018 loans held for sale activity is included in the change in loans held for sale and is attributable to discontinued operations which has an immaterial impact on the Company’s Consolidated Statements of Cash Flows.

PARENT COMPANY FINANCIAL INFO_6

PARENT COMPANY FINANCIAL INFORMATION (CONDENSED STATEMENTS OF CASH FLOWS) (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Operating activities:
Net income	[1],[2]	$ 158,228	$ 193,528	$ 146,248
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation of premises and equipment	[1],[2]	15,218	15,032	13,725
Accretion related to acquisitions, net	[1],[2]	(8,397)	(7,899)	(6,711)
Issuance of common stock for services	[1],[2]	804	910	914
Net (increase) decrease in other assets	[1],[2]	(138,189)	(57,859)	(26,606)
Net increase in other liabilities	[1],[2]	103,916	11,816	24,005
Net cash and cash equivalents provided by operating activities	[1],[2]	231,922	194,799	216,765
Investing activities:
Net increase in premises and equipment		(29,573)	(15,892)	1,698
Cash paid in acquisitions		0	(12)	(14,304)
Cash received in acquisitions		0	46,164	174,496
Net cash provided by (used in) investing activities		(1,918,306)	(425,401)	(770,039)
Financing activities:
Net increase (decrease) in short-term borrowings		(85,365)	(872,229)	58,645
Repayments of long-term debt		(619,616)	(220,614)	(40,000)
Proceeds from issuance of long-term borrowings		0	550,000	225,000
Cash dividends paid - common stock		(78,860)	(78,345)	(58,001)
Cash dividends paid - preferred stock		(5,658)	0	0
Cancellation of warrants		0	0	(1,530)
Issuance of preferred stock, net		166,356	0	0
Vesting of restricted stock, net of shares held for taxes		(2,261)	(2,301)	(2,908)
Net cash and cash equivalents provided by (used in) financing activities		1,743,646	405,435	615,100
Net increase (decrease) in cash and cash equivalents		57,262	174,833	61,826
Cash, cash equivalents and restricted cash at beginning of the period		436,032	261,199	199,373
Cash, cash equivalents and restricted cash at end of the period		493,294	436,032	261,199
Supplemental schedule of noncash investing and financing activities
Issuance of common stock in regard to acquisitions		0	499,974	794,809	[3]
Assets acquired		0	2,849,673	3,253,328
Liabilities assumed	[4]	0	2,558,063	2,873,718
Parent Company
Operating activities:
Net income		158,228	193,528	146,248
Adjustments to reconcile net income to net cash provided by operating activities:
Equity in undistributed net income of subsidiaries		(75,326)	(52,878)	(115,638)
Depreciation of premises and equipment		439	424	424
Accretion related to acquisitions, net		735	662	636
Gain on sale of investment		0	0	(1,416)
Issuance of common stock for services		804	910	914
Net (increase) decrease in other assets		(3,005)	(3,256)	(584)
Net increase in other liabilities		10,038	4,964	(4,159)
Net cash and cash equivalents provided by operating activities		91,913	144,354	26,425
Investing activities:
Net increase in premises and equipment		(306)	(355)	0
Proceeds from sale of investment		0	0	3,761
Increase in equity method investment		(2,353)	0	0
Cash paid in acquisitions		0	(12)	0
Cash received in acquisitions		0	21,553	25,976
Net cash provided by (used in) investing activities		(2,659)	21,186	29,737
Financing activities:
Net increase (decrease) in short-term borrowings		0	(5,000)	5,000
Repayments of long-term debt		(8,500)	0	0
Cash dividends paid - common stock		(78,860)	(78,345)	(58,001)
Cash dividends paid - preferred stock		(5,658)	0	0
Cancellation of warrants		0	0	(1,530)
Issuance (repurchase) of common stock		(48,866)	(78,292)	2,347
Issuance of preferred stock, net		166,356	0	0
Vesting of restricted stock, net of shares held for taxes		(2,261)	(2,301)	(2,908)
Net cash and cash equivalents provided by (used in) financing activities		22,211	(163,938)	(55,092)
Net increase (decrease) in cash and cash equivalents		111,465	1,602	1,070
Cash, cash equivalents and restricted cash at beginning of the period		5,283	3,681	2,611
Cash, cash equivalents and restricted cash at end of the period		116,748	5,283	3,681
Supplemental schedule of noncash investing and financing activities
Issuance of common stock in regard to acquisitions		0	499,974	794,809
Assets acquired		0	509,075	859,176
Liabilities assumed		$ 0	$ 9,089	$ 64,367
[1]	Discontinued operations have an immaterial impact to the Company’s Consolidated Statements of Cash Flows. The change in goodwill impairment losses included in the Operating Activities section above are attributable to discontinued operations.
[2]	Loans held for sale activity is included in the Operating Activities section above. Due to the increased mortgage related activity during 2020 and 2019, the loans held for sale activity is segregated between originations and purchases of loans held for sale and proceeds from sales of loans held for sale. 2018 loans held for sale activity is included in the change in loans held for sale and is attributable to discontinued operations which has an immaterial impact on the Company’s Consolidated Statements of Cash Flows.
[3]	Includes conversion of Xenith warrants to the Company’s warrants.
[4]	2018 includes contingent consideration related to DHFB and OAL acquisitions.

SUBSEQUENT EVENTS (Narrative) (

SUBSEQUENT EVENTS (Narrative) (Details) $ / shares in Units, $ in Thousands	Feb. 25, 2021USD ($)	Feb. 15, 2021item	Jan. 28, 2021$ / shares	Jun. 09, 2020	Dec. 31, 2020USD ($)$ / shares	Dec. 31, 2019USD ($)$ / shares	Dec. 31, 2018USD ($)$ / shares
Subsequent Event [Line Items]
Dividends on common stock (in dollars per share)					$ 1	$ 0.96	$ 0.88
Dividends on preferred stock (in dollars per share)					$ 328.48
Long-term debt, early repayments | $					$ 619,616	$ 220,614	$ 40,000
Subsequent Event
Subsequent Event [Line Items]
Number of consolidated branch locations | item		5
Long-term debt, early repayments | $	$ 200,000
Long-term debt, prepayment penalties | $	$ 14,700
Common Stock, Class A | Subsequent Event
Subsequent Event [Line Items]
Dividends on common stock (in dollars per share)			$ 0.25
Dividends payable, date declared			Jan. 28, 2021
Dividends payable, date to be paid			Feb. 26, 2021
Dividends payable, date of record			Feb. 12, 2021
Depositary Shares | Subsequent Event
Subsequent Event [Line Items]
Dividends on preferred stock (in dollars per share)			$ 0.43
Series A Preferred Stock
Subsequent Event [Line Items]
Number of preferred stock represented by each depositary share				The Series A preferred stock is represented by depositary shares, each representing a 1/400th ownership interest in a share of Series A preferred stock
Series A Preferred Stock | Subsequent Event
Subsequent Event [Line Items]
Dividends on preferred stock (in dollars per share)			$ 171.88
Dividends payable, date to be paid			Mar. 1, 2021
Dividends payable, date of record			Feb. 12, 2021