Atlantic Union Bankshares (AUB) 10-K 25 Feb 20 2019 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2019	Feb. 19, 2020	Jun. 28, 2019
Document and Entity Information [Abstract]
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	0-20293
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
Title of 12(b) Security	Common Stock, par value $1.33 per share
Trading Symbol	AUB
Security Exchange Name	NASDAQ
Document Period End Date	Dec. 31, 2019
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Amendment Flag	false
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2019
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
Entity Public Float			$ 2,850,450,474
Entity Common Stock, Shares Outstanding		79,216,981

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Cash and cash equivalents:
Cash and due from banks	$ 163,050,000	$ 166,927,000
Interest-bearing deposits in other banks	234,810,000	94,056,000
Federal funds sold	38,172,000	216,000
Total cash and cash equivalents	436,032,000	261,199,000
Securities available for sale, at fair value	1,945,445,000	1,774,821,000
Securities held to maturity, at carrying value	555,144,000	492,272,000
Restricted stock, at cost	130,848,000	124,602,000
Loans held for sale, at fair value	55,405,000
Loans held for investment, net of deferred fees and costs	12,610,936,000	9,716,207,000
Less allowance for loan losses	42,294,000	41,045,000
Total loans held for investment, net	12,568,642,000	9,675,162,000
Premises and equipment, net	161,073,000	146,967,000
Goodwill	935,560,000	727,168,000
Amortizable intangibles, net	73,669,000	48,685,000
Bank owned life insurance	322,917,000	263,034,000
Other assets	377,587,000	250,210,000
Assets of discontinued operations	668,000	1,479,000
Total assets	17,562,990,000	13,765,599,000
LIABILITIES
Noninterest-bearing demand deposits	2,970,139,000	2,094,607,000
Interest-bearing deposits	10,334,842,000	7,876,353,000
Total deposits	13,304,981,000	9,970,960,000
Securities sold under agreements to repurchase	66,053,000	39,197,000
Other short-term borrowings	370,200,000	1,048,600,000
Long-term borrowings	1,077,495,000	668,481,000
Other liabilities	230,519,000	112,093,000
Liabilities of discontinued operations	640,000	1,687,000
Total liabilities	15,049,888,000	11,841,018,000
Commitments and contingencies (Note 10)
STOCKHOLDERS' EQUITY
Common stock, $1.33 par value; shares authorized of 200,000,000 and 100,000,000 at December 31, 2019 and December 31, 2018, respectively; 80,001,185 and 65,977,149 shares issued and outstanding at December 31, 2019 and December 31, 2018, respectively.	105,827,000	87,250,000
Additional paid-in capital	1,790,305,000	1,380,259,000
Retained earnings	581,395,000	467,345,000
Accumulated other comprehensive income (loss)	35,575,000	(10,273,000)
Total stockholders' equity	2,513,102,000	1,924,581,000
Total liabilities and stockholders' equity	$ 17,562,990,000	$ 13,765,599,000

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Dec. 31, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Common stock, par value (in dollars per share)	$ 1.33	$ 1.33
Common stock, shares authorized (in shares)	200,000,000	100,000,000
Common stock, shares issued (in shares)	80,001,185	65,977,149
Common stock, shares outstanding (in shares)	80,001,185	65,977,149

CONSOLIDATED STATEMENTS OF INCO

CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Interest and dividend income:
Interest and fees on loans	$ 612,115	$ 469,856	$ 293,996
Interest on deposits in other banks	3,733	2,125	539
Interest and dividends on securities:
Taxable	51,437	36,851	20,305
Nontaxable	32,047	19,956	14,204
Total interest and dividend income	699,332	528,788	329,044
Interest expense:
Interest on deposits	114,972	59,336	26,106
Interest on short-term borrowings	15,479	18,458	6,035
Interest on long-term borrowings	31,009	24,303	17,896
Total interest expense	161,460	102,097	50,037
Net interest income	537,872	426,691	279,007
Provision for credit losses	21,092	13,736	10,802
Net interest income after provision for credit losses	516,780	412,955	268,205
Noninterest income:
Mortgage banking income	10,303	0	0
Gains (losses) on securities transactions	7,675	383	800
Bank owned life insurance income	8,311	7,198	6,144
Loan-related interest rate swap fees	14,126	3,554	3,051
Gain on Shore Premier sale	0	19,966	0
Other operating income	17,791	7,145	2,772
Total noninterest income	132,815	104,241	62,429
Noninterest expenses:
Salaries and benefits	195,349	159,378	115,968
Occupancy expenses	29,793	25,368	18,558
Furniture and equipment expenses	14,216	11,991	10,047
Printing, postage, and supplies	5,056	4,650	4,901
Technology and data processing	23,686	18,397	16,132
Professional services	11,905	10,283	7,767
Marketing and advertising expense	11,566	10,043	7,795
FDIC assessment premiums and other insurance	6,874	6,644	4,048
Other taxes	15,749	11,542	8,087
Loan-related expenses	10,043	7,206	4,733
OREO and credit-related expenses	4,708	4,131	3,764
Amortization of intangible assets	18,521	12,839	6,088
Training and other personnel costs	6,376	4,259	3,843
Merger-related costs	27,824	39,728	5,393
Rebranding expense	6,455	0	0
Loss on debt extinguishment	16,397	0	0
Other expenses	13,822	11,308	8,544
Total noninterest expenses	418,340	337,767	225,668
Income from continuing operations before income taxes	231,255	179,429	104,966
Income tax expense	37,557	30,016	32,790
Income from continuing operations	193,698	149,413	72,176
Discontinued operations:
Income (loss) from operations of discontinued mortgage segment	(230)	(4,280)	1,344
Income tax expense (benefit)	(60)	(1,115)	597
Income (loss) on discontinued operations	(170)	(3,165)	747
Net income	$ 193,528	$ 146,248	$ 72,923
Basic earnings per common share (in dollars per share)	$ 2.41	$ 2.22	$ 1.67
Diluted earnings per common share (in dollars per share)	2.41	2.22	1.67
Dividends declared per common share (in dollars per share)	$ 0.96	$ 0.88	$ 0.81
Basic weighted average number of common shares outstanding (in shares)	80,200,950	65,859,165	43,698,897
Diluted weighted average number of common shares outstanding (in shares)	80,263,557	65,908,573	43,779,744
Service charges on deposit accounts
Noninterest income:
Noninterest income	$ 30,202	$ 25,439	$ 18,850
Other service charges, commissions and fees
Noninterest income:
Noninterest income	6,423	5,603	4,593
Interchange fees
Noninterest income:
Noninterest income	14,619	18,803	14,974
Fiduciary and asset management fees
Noninterest income:
Noninterest income	$ 23,365	$ 16,150	$ 11,245

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of Comprehensive Income [Abstract]
Net income	$ 193,528	$ 146,248	$ 72,923
Cash flow hedges:
Change in fair value of cash flow hedges	(5,103)	1,087	(44)
Reclassification adjustment for losses included in net income (net of tax, $154, $259, and $464 for the years ended December 31, 2019, 2018, 2017 respectively) (1)	7,714	975	862
AFS securities:
Unrealized holding gains (losses) arising during period (net of tax, ($13,262), $2,847, and $1,580 for the years ended December 31, 2019, 2018, 2017 respectively)	49,890	(10,711)	2,936
Reclassification adjustment for gains included in net income (net of tax, $1,611, $95, and $280 for the years ended December 31, 2019, 2018, 2017 respectively) (2)	(6,064)	(362)	(520)
HTM securities:
Reclassification adjustment for accretion of unrealized gain on AFS securities transferred to HTM (net of tax, $5, $109, and $362 for the years ended December 31, 2019, 2018, 2017 respectively) (3)	(20)	(408)	(672)
Bank owned life insurance:
Unrealized holding gains (losses) arising during period	(646)	0	0
Reclassification adjustment for losses included in net income (4)	77	76	363
Other comprehensive income (loss)	45,848	(9,343)	2,925
Comprehensive income	$ 239,376	$ 136,905	$ 75,848

CONSOLIDATED STATEMENTS OF CO_2

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of Comprehensive Income [Abstract]
Tax expense (benefit) related to reclassification adjustment for losses included in net income	$ (2,051)	$ (259)	$ (464)
Tax expense (benefit) related to unrealized holding gains (losses) arising during period	13,262	(2,847)	1,580
Tax expense (benefit) related to gains on the sale of securities	1,611	95	280
Tax expense (benefit) related to unrealized gain for AFS securities transferred to HTM	$ 5	$ 109	$ 362

CONSOLIDATED STATEMENTS OF CHAN

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Total
Beginning balance at Dec. 31, 2016	$ 57,506	$ 605,397	$ 341,938	$ (3,809)	$ 1,001,032
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income			72,923		72,923
Other comprehensive income (net of taxes)				2,925	2,925
Issuance of common stock in regard to acquisitions					0
Dividends on common stock			(35,393)		(35,393)
Issuance of common stock under Equity Compensation Plans	84	953			1,037
Issuance of common stock for services rendered	28	696			724
Vesting of restricted stock, including tax effects, under Equity Compensation Plan	126	(1,693)			(1,567)
Stock-based compensation expense		4,648			4,648
Ending balance at Dec. 31, 2017	57,744	610,001	379,468	(884)	1,046,329
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income			146,248		146,248
Other comprehensive income (net of taxes)				(9,343)	(9,343)
Issuance of common stock in regard to acquisitions	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, including tax effects, under Equity Compensation Plan	157	(3,065)			(2,908)
Cancellation of warrants		(1,530)			(1,530)
Impact of adoption of new guidance			(370)	(46)	(416)
Stock-based compensation expense		6,132			6,132
Ending balance at Dec. 31, 2018	87,250	1,380,259	467,345	(10,273)	1,924,581
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income			193,528		193,528
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, including tax effects, under Equity Compensation Plan	258	(2,559)			(2,301)
Impact of adoption of new guidance			(1,133)		(1,133)
Stock-based compensation expense		8,332			8,332
Ending balance at Dec. 31, 2019	$ 105,827	$ 1,790,305	$ 581,395	$ 35,575	$ 2,513,102

CONSOLIDATED STATEMENTS OF CH_2

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of Stockholders' Equity [Abstract]
Other comprehensive income (loss), tax	$ 13,697	$ 2,792	$ 1,402
Issuance of Common Stock in regard to acquisition, shares	15,842,026	21,922,077
Dividends on common stock (in dollars per share)	$ 0.96	$ 0.88	$ 0.81
Issuance of common stock under Equity Compensation Plan, shares	78,098	121,438	63,476
Stock purchased under stock repurchase plan, shares	2,171,944
Issuance of common stock for services rendered, shares	25,744	23,581	20,857
Vesting of restricted stock under Equity Compensation Plan, shares	193,884	118,058	94,370

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Operating activities:
Net income	$ 193,528	$ 146,248	$ 72,923
Adjustments to reconcile net income to net cash and cash equivalents provided by (used in) operating activities:
Depreciation of premises and equipment	15,032	13,725	11,183
Write-down of foreclosed properties and former bank premises	1,906	1,324	1,891
Amortization, net	24,944	12,603	14,021
Amortization (accretion) related to acquisition, net	(7,899)	(6,711)	(866)
Provision for credit losses	21,092	13,551	10,756
Gains on securities transactions, net	(7,675)	(383)	(800)
BOLI income	(8,311)	(7,198)	(5,306)
Deferred tax expense (benefit)	15,057	17,821	5,624
Decrease (increase) in loans held for sale, net	(34,178)	40,662	(4,175)
Losses (gains) on sales of foreclosed properties and former bank premises, net	102	(220)	143
Loss on debt extinguishment	16,397	0	0
Gain on sale of Shore Premier loans	0	(19,966)	0
Goodwill impairment losses	0	864	0
Stock-based compensation expenses	8,332	6,132	4,648
Issuance of common stock for services	910	914	724
Net decrease (increase) in other assets	(57,348)	(26,606)	(5,785)
Net increase in other liabilities	12,910	24,005	5,352
Net cash and cash equivalents provided by (used in) operating activities	194,799	216,765	110,333
Investing activities:
Purchases of AFS securities and restricted stock	(444,398)	(1,047,611)	(298,958)
Purchases of HTM securities	(47,217)	(485,629)	(7,836)
Proceeds from sales of AFS securities and restricted stock	514,070	515,764	139,046
Proceeds from maturities, calls and paydowns of AFS securities	247,770	173,597	115,124
Proceeds from maturities, calls and paydowns of HTM securities	3,142	0	5,048
Proceeds from sale of marketable equity securities	0	28,913	0
Proceeds from sale of loans held for investment	0	581,324	0
Net increase in loans held for investment	(741,146)	(704,582)	(838,668)
Net increase in premises and equipment	(15,892)	1,698	(9,261)
Proceeds from BOLI settlements	0	0	2,497
Proceeds from sales of foreclosed properties and former bank premises	12,118	6,295	2,448
Cash paid in acquisitions	(12)	(14,304)	(231)
Cash acquired in acquisitions	46,164	174,496	5,038
Net cash and cash equivalents provided by (used in) investing activities	(425,401)	(770,039)	(885,753)
Financing activities:
Net increase in noninterest-bearing deposits	191,125	81,028	105,093
Net increase in interest-bearing deposits	916,656	351,084	502,018
Net increase (decrease) in short-term borrowings	(872,229)	58,645	217,371
Cash paid for contingent consideration	(565)	(565)	(3,003)
Proceeds from issuance of long-term debt	550,000	225,000	20,000
Repayments of long-term debt	(220,614)	(40,000)	(10,000)
Cash dividends paid - common stock	(78,345)	(58,001)	(35,393)
Cancellation of warrants	0	(1,530)	0
Repurchase of common stock	(80,280)	0	0
Issuance of common stock	1,988	2,347	1,037
Vesting of restricted stock, net of shares held for taxes	(2,301)	(2,908)	(1,567)
Net cash and cash equivalents provided by (used in) financing activities	405,435	615,100	795,556
Increase (decrease) in cash and cash equivalents	174,833	61,826	20,136
Cash and cash equivalents at beginning of the period	261,199	199,373	179,237
Cash and cash equivalents at end of the period	436,032	261,199	199,373
Cash payments for:
Interest	159,934	99,227	47,775
Income taxes	25,058	10,830	24,000
Supplemental schedule of noncash investing and financing activities
Transfers from loans (foreclosed properties) to foreclosed properties (loans)	1,878	493	910
Stock received as consideration for sale of loans held for investment	0	28,913	0
Securities Transfer From HTM to AFS	0	187,425	0
Issuance of common stock in exchange for net assets in acquisition	499,974	794,809	0
Transactions related to acquisitions
Assets acquired	2,849,673	3,253,328	293
Liabilities assumed	$ 2,558,063	$ 2,873,718	$ 5,437

SUMMARY OF SIGNIFICANT ACCOUNTI

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	12 Months Ended
	Dec. 31, 2019
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. Principles of Consolidation Transfers and Servicing Use of Estimates Variable Interest Entities Business Combinations and Divestitures - Business Combinations 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 Investment Securities Available for Sale Held to Maturity Equity Investments Restricted Stock, at cost The Company regularly evaluates all securities whose values have declined below amortized cost to assess whether the decline in fair value represents an OTTI. Declines in the fair value of held to maturity and AFS securities below their cost that are deemed to be other than temporary are reflected in earnings as realized losses. In estimating OTTI losses, an impairment is other-than-temporary if any of the following conditions exist: the entity intends to sell the security; it is more likely than not that the entity will be required to sell the security before recovery of its amortized cost basis; or, the entity does not expect to recover the security’s entire amortized cost basis (even if the entity does not intend to sell). If a credit loss exists, but an entity does not intend to sell the impaired debt security and is not more likely than not to be required to sell before recovery, the impairment is other-than-temporary and should be separated into a credit portion to be recognized in earnings and the remaining amount relating to all other factors recognized as other comprehensive loss. Gains and losses on the sale of securities are recorded on the trade date and are determined using the specific identification method. Purchased premiums and discounts are recognized in interest income using the interest method over the terms of the securities. Loans Held for Sale 14 “Fair Value Measurements.” In addition, the Company requires a firm purchase commitment from an investor before a loan can be closed, thus limiting interest rate risk. Net unrealized losses, if any, are recognized through a valuation allowance by charges to income. The change in fair value of loans held for sale is recorded as a component of “Mortgage banking income” within the Company’s Consolidated Statements of Income. The Company records loans held for sale per the aforementioned policy as of the acquisition date of Access through the year 2019. During 2018, the Company did not have any loans held for sale, due to the wind down of UMG, as noted in Note 19 “Segment Reporting & Discontinued Operations"; therefore, any activity prior to this point would have been reported in discontinued operations. 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 ALL, 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 segments: 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 requirements for multifamily properties are stricter than for other non-owner-occupied property types. The Company manages this risk by avoiding concentrations with any particular customer. Commercial & Industrial Residential 1-4 Family - Commercial Residential 1-4 Family - Consumer Residential 1-4 Family - Revolving Auto Consumer and all other Also included in this category are loans purchased through various third-party lending programs. These portfolios include consumer loans and carry risks associated with the borrower, changes in the economic environment, and the vendors themselves. The Company manages these risks through policies that require minimum credit scores and other underwriting requirements, robust analysis of actual performance versus expected performance, as well as ensuring compliance with the Company’s vendor management program. 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. The process for charge-offs of impaired collateral dependent loans is discussed in detail within the “Allowance for Loan Losses” section of this Note. 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 Impaired Loans A loan is considered impaired when, based on current information and events, it is probable that the Company will be unable to collect the scheduled payments of principal 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 experience insignificant payment delays and payment shortfalls generally are not classified as impaired. Management determines 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 is 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 is the same for all segments within the commercial loan segment. For the consumer loan segment, large groups of smaller balance homogeneous loans are collectively evaluated for impairment. This evaluation subjects 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 applies payments received on impaired loans to principal and interest based on the contractual terms until they are placed on nonaccrual status. All payments received are then applied to reduce the principal balance and recognition of interest income is terminated as previously discussed. Allowance for Loan Losses The provision for loan losses charged to operations is an amount sufficient to bring the ALL to an estimated balance that management considers adequate to absorb probable losses inherent in the portfolio. Loans are charged against the allowance when management believes the collectability of the principal is unlikely, while recoveries of amounts previously charged-off are credited to the ALL. Management’s determination of the adequacy of the ALL 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, and other risk factors. While management uses available information to recognize losses on loans, future additions to the allowance may be necessary based on changes in economic conditions, particularly those affecting real estate values. Management believes that the ALL is adequate. 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 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. The Company has various committees that review and ensure that the ALL methodology is in accordance with GAAP and loss factors used appropriately reflect the risk characteristics of the loan portfolio. Specifically, the Company’s Allowance Committee oversees the Company’s Allowance for Loan Losses (under the Incurred Loss Model framework) and will also oversee the Allowance for Credit Losses (under the CECL framework) processes. The Allowance Committee is the authoritative committee for all quarterly qualitative factors, ALL estimates and changes to the Company’s ALL methodology. The Company’s ALL consists of specific, general, and qualitative components. Specific Reserve Component The specific reserve component relates to impaired loans. Upon being identified as impaired, for loans not considered to be collateral-dependent, an ALL is established when the discounted cash flows of the impaired loan are lower than the carrying value of that loan. The impairment of significant collateral-dependent loans is measured based on the fair value of the underlying collateral, less selling costs, compared to the carrying value of the loan. If the Company determines that the value of an impaired 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 represents a confirmed loss. Typically, a loss is confirmed when the Company is moving towards 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 updated every 12 months for all impaired loans. The Company’s impairment analysis documents the date of the appraisal used in the analysis. Adjustments to real estate appraised values are only permitted to be made by the REVG. The impairment 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. Impairment analyses are updated, reviewed, and approved on a quarterly basis at or near the end of each reporting period. General Reserve Component The general reserve component covers non-impaired loans and is 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 is a function of the net charge-off historical loss experience to the average loan balance of the portfolio averaged during a period that management has determined to be adequately reflective of the losses inherent in the loan portfolio. The Company has implemented a rolling 24-quarter look back period, which is re-evaluated on a periodic basis to ensure the reasonableness of the period being used. The following table shows the types of qualitative factors management considers: ​ ​ ​ ​ ​ QUALITATIVE FACTORS Portfolio National / International Local Experience and ability of lending team ​ Interest rates ​ Gross state product Pace of loan growth ​ Inflation ​ Unemployment rate Footprint and expansion ​ Unemployment ​ Home prices Execution of loan risk rating process ​ Level of economic activity ​ CRE prices Degree of credit oversight ​ Political and trade uncertainty ​ ​ Underwriting standards ​ Asset prices ​ ​ Delinquency levels in portfolio ​ ​ ​ ​ Charge-off trends in portfolio ​ ​ ​ ​ Credit concentrations / nature and volume of the portfolio ​ ​ ​ ​ ​ Acquired Loans 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 acquired impaired (or PCI) or acquired performing. Acquired performing loans are accounted for under ASC 310-20, Receivables – Nonrefundable Fees and Other Costs Acquired impaired loans reflect credit quality deterioration since origination, as it is probable at acquisition that the Company will not be able to collect all contractually required payments. These PCI loans are accounted for under ASC 310-30, Receivables – Loans and Debt Securities Acquired with Deteriorated Credit Quality Quarterly, management performs a recast of PCI loans based on updated future expected cash flows, which are 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 is considered to be the accretable yield and is recognized as interest income over the estimated life of the loan or pool using the effective yield method. The accretable yield may change due to changes in the timing and amounts of expected cash flows; these changes are disclosed in Note 4 “Loans and Allowance for Loan Losses.” The excess of the undiscounted contractual balances due over the cash flows expected to be collected is considered to be the nonaccretable difference, which represents 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 are 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 are and will continue to be subject to the Company’s internal and external credit review and monitoring. If further credit deterioration is experienced, such deterioration will be measured and the provision for loan losses will be increased. A loan will be removed from a pool (at its carrying value) only if the loan is sold, foreclosed, or assets are received in full satisfaction of the loan. Troubled Debt Restructurings - The Company strives to identify borrowers in financial difficulty early and work with them to modify their loan to more affordable terms as early as possible. These modified terms may include extension of terms that are considered to be below market, conversion to interest only, and other actions intended to minimize the economic loss to avoid foreclosure or repossession of the collateral, rate reductions, and principal or interest forgiveness. Restructured loans for which there was no rate concession, and therefore make at market rate of interest, may subsequently be eligible to be removed from reportable TDR status in periods subsequent to the restructuring depending on the performance of the loan. In cases where borrowers are granted new terms that provide for a reduction of either interest or principal, management measures any impairment on the restructuring as noted above for impaired loans. 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 certain restrictive circumstances. The removal of TDR designations must be approved by the Company’s Special Asset Loan Committee. Loans removed from reportable TDR status continue to be evaluated for impairment. The significant majority of these loans have been subject to new credit decisions due to the improvement in the expected future cash flows, the financial condition of the borrower, and other factors considered during the re-underwriting. Premises and Equipment - Goodwill and Intangible Assets - Goodwill resulting from business combinations prior to January 1, 2009 represents the excess of the purchase price over the fair value of the net assets of businesses acquired. Goodwill resulting from business combinations after January 1, 2009 is generally determined as the excess of the fair value of the consideration transferred, plus the fair value of any noncontrolling interests in the acquiree over the fair value of the net assets acquired and liabilities assumed as of the acquisition date. Goodwill and intangible assets acquired in a purchase business combination and determined to have an indefinite useful life are not amortized, but tested for impairment at least annually or more frequently if events and circumstances exists that indicate that a goodwill impairment test should be performed. The Company has selected April 30th as the date to perform the annual impairment test. 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. Goodwill is the only intangible asset with an indefinite life included on the Company’s Consolidated Balance Sheets. 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 performed its annual impairment testing on April 30, 2019 and determined that there was no impairment to its goodwill. Management performed a review through December 31, 2019 and concluded that no impairment existed as of the balance sheet date. Foreclosed Properties Transfers of Financial Assets transferred assets through an agreement to repurchase them before their maturity or the ability to unilaterally cause the holder to return specific assets. Bank Owned Life Insurance Derivatives 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”). The Company commits to deliver the loan if settlement occurs ("best efforts") or commits to deliver the locked loan in a binding ("mandatory") delivery program with an investor. Certain loans under interest rate lock commitments are covered under forward sales contracts of MBS. Rate lock commitments on mortgage loans that are intended to be sold in the secondary market and commitments to deliver loans to investors are considered to be derivatives. The Company uses these derivatives as part of an overall strategy to manage market risk primarily due to fluctuations in interest rates, and to capture improved margins resulting from the mandatory delivery of loans. As of December 31, 2018, there were no mortgage banking derivatives due to the wind down of Union Mortgage Group. Mortgage banking derivatives as of December 31, 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 - investments in these qualified affordable housing projects for the years ended December 31, 2019 and 2018 were $29.6 million and $10.8 million, respectively. At December 31, 2019 and 2018, the Company’s recorded liability totaled $12.0 million and $9.9 million, respectively, for the related unfunded commitments, which are expected to be paid from 2020 to 2036. Loan Fees Stock Compensation Plan Compensation - Stock Compensation The Company did not issue stock options in 2018 or 2019; 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 2019 to determine the valuation of the stock options. The valuation employs the following assumptions: • Dividend yield - calculated as the ratio of forecasted dividend yield per share of common stock; • Expected life (term of the option) - based on the contractual life and vesting schedule for the respective option; • Expected volatility - based on the monthly historical volatility of the Company’s stock price over the expected life of the options; and • Risk-free interest rate - based upon the U. S. Department of the Treasury (the “Treasury”) bill yield curve, for periods within the contractual life of the option, in effect at the time of grant. ​ The fair value of PSUs granted in 2019 and 2018 is 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 in 2019 and 2018. ​ The fair value of restricted stock is 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 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, 2019, 2018, or 2017 related to tax positions taken. As of December 31, 2019 and 2018, 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. On December 22, 2017, the Tax Act was signed into law. Refer to Note 17 “Income Taxes” for additional information on the impact of the Tax Act. Advertising Costs - Earnings Per Common Share Comprehensive Income Off Balance Sheet Credit Related Financial Instruments Fair Value Fair Value Measurements and Disclosures 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 Reclassifications Adoption of New Accounting Standards - "Leases (Topic 842)." 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 In August 2018, the FAS

ACQUISITIONS

ACQUISITIONS	12 Months Ended
	Dec. 31, 2019
Business Combinations [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, Intangibles-Goodwill and Other The following table provides a preliminary assessment of the consideration transferred, assets acquired, and liabilities assumed as of the date of the acquisition (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ Purchase Price: ​ ​ Fair value of shares of the Company's common stock issued ​ ​ $ 499,974 Cash paid for fractional shares ​ ​ 12 Total purchase price ​ ​ $ 499,986 ​ ​ ​ ​ ​ ​ ​ Fair value of assets acquired: ​ ​ Cash and cash equivalents ​ $ 46,164 ​ Investments ​ 464,742 ​ Loans ​ 2,173,060 ​ Premises and equipment ​ 24,198 ​ Core deposit intangibles ​ 40,860 ​ Other assets ​ 100,649 ​ Total assets ​ $ 2,849,673 ​ ​ ​ ​ ​ ​ ​ ​ Fair value of liabilities assumed: ​ ​ Deposits ​ $ 2,227,073 ​ Short-term borrowings ​ 220,685 ​ Long-term borrowings ​ 70,535 ​ Other liabilities ​ 39,770 ​ Total liabilities ​ $ 2,558,063 ​ ​ ​ ​ ​ ​ ​ ​ Net assets acquired ​ ​ $ 291,610 Preliminary goodwill ​ ​ $ 208,376 ​ The acquired loans were recorded at fair value at the acquisition date without carryover of Access’s previously established ALL. The fair value of the loans was 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 leases and then applying a market-based discount rate to those cash flows. In this regard, the acquired 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 (pass rated loans and adversely classified loans) and past due status. For valuation purposes, these pools were further disaggregated by maturity, pricing characteristics (e.g., fixed-rate, adjustable-rate) and re-payment structure (e.g., interest only, fully amortizing, balloon). If new information is obtained about facts and circumstances about expected cash flows that existed as of the acquisition date, management will adjust fair values in accordance with accounting for business combinations. The acquired loans were divided into loans with evidence of credit quality deterioration which are accounted for under ASC 310-30, Receivables - Loans and Debt Securities Acquired with Deteriorated Credit Quality Receivables - Nonrefundable Fees and Other Costs The following table presents the acquired impaired loans receivable at the acquisition date (dollars in thousands): ​ ​ ​ ​ ​ Contractually required principal and interest payments $ 44,429 Nonaccretable difference ​ (6,062) Cash flows expected to be collected ​ 38,367 Accretable difference ​ (5,060) Fair value of loans acquired with a deterioration of credit quality ​ $ 33,307 ​ The following table presents certain pro forma information as if Access had been acquired on January 1, 2017. These results combine the historical results of Access in the Company’s Consolidated Statements of Income and, while certain adjustments were made for the estimated impact of certain fair value adjustments and other acquisition-related activity, they are not indicative of what would have occurred had the acquisition taken place on January 1, 2017. In particular, no adjustments have been made to eliminate the amount of Access’ provision for credit losses that would not have been necessary had the acquired loans been recorded at fair value as of January 1, 2017. Pro forma adjustments below include the net impact of accretion as well as the elimination of merger-related costs. The Company expects to achieve further operating cost savings and other business synergies, including branch closures, as a result of the acquisition which are not reflected in the pro forma amounts below (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ For the years ended ​ ​ December 31, 2019 2018 2017 Total revenues ​ $ 681,306 ​ $ 666,921 ​ $ 468,840 Net income ​ $ 217,075 ​ $ 185,698 ​ $ 91,270 Earnings per share ​ $ 2.53 ​ $ 2.28 ​ $ 1.59 ​ Merger-related costs associated with the acquisition of Access were $26.2 million and $1.8 million for the years ended December 31, 2019 and 2018, respectively. Such costs include legal and accounting fees, lease and contract termination expenses, system conversion, and employee severances, which have been expensed as incurred. The Company completed the conversion of the core information systems during May 2019 which combined the former Access assets and results of operations into those of the Company. Therefore, reporting segregated Access revenue during 2019 is impracticable. Fair Value Premiums and Discounts The net effect of the amortization and accretion of premiums and discounts associated with the Company’s acquisition accounting adjustments, which includes previous acquisitions in addition to Access, had the following impact on the Consolidated Statements of Income during the years ended December 31, 2019, 2018, and 2017 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ For the years ended ​ ​ December 31, ​ 2019 2018 2017 Loans (1) ​ $ 24,846 ​ $ 17,145 ​ $ 6,784 Buildings (2) ​ 50 ​ 228 ​ — Core deposit intangible (3) ​ (16,755) ​ (11,464) ​ (5,603) Other amortizable intangibles (3) ​ (1,766) ​ (1,375) ​ (485) Borrowings (4) ​ (360) ​ (506) ​ 170 Time deposits (5) ​ 833 ​ 2,553 ​ — Leases (2) ​ 1,051 ​ 130 ​ — Net impact to income before taxes ​ $ 7,899 ​ $ 6,711 ​ $ 866 ​ (1) Loan acquisition-related fair value adjustments accretion is included in "Interest and fees on loans" in the "Interest and dividend income" section of the Company’s Consolidated Statements of Income. (2) Building and lease acquisition-related fair value adjustments amortization is included in "Occupancy expenses" in the "Noninterest expense" section of the Company’s Consolidated Statements of Income. (3) Core deposit and other intangible premium amortization is included in "Amortization of intangible assets" in the "Noninterest expense" section of the Company’s Consolidated Statements of Income. (4) Borrowings acquisition-related fair value adjustments (amortization) accretion is included in "Interest on long-term borrowings" in the "Interest Expense" section of the Company’s Consolidated Statements of Income. (5) Certificate of deposit acquisition-related fair value adjustments accretion is included in "Interest on deposits" in the "Interest expense" section of the Company’s Consolidated Statements of Income.

SECURITIES

SECURITIES	12 Months Ended
	Dec. 31, 2019
Investments, Debt and Equity Securities [Abstract]
SECURITIES	3. SECURITIES Available for Sale The amortized cost, gross unrealized gains and losses, and estimated fair values of securities AFS as of December 31, 2019 and 2018 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 ​ $ 4,487 ​ $ 11 ​ $ — ​ $ 4,498 Obligations of states and political subdivisions ​ 417,397 ​ 25,624 ​ (29) ​ 442,992 Corporate and other bonds (1) ​ 259,213 ​ 4,403 ​ (546) ​ 263,070 Mortgage-backed securities ​ 1,209,251 ​ 23,880 ​ (1,325) ​ 1,231,806 Other securities ​ 3,079 ​ — ​ — ​ 3,079 Total AFS securities ​ $ 1,893,427 ​ $ 53,918 ​ $ (1,900) ​ $ 1,945,445 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2018 ​ ​ ​ ​ Obligations of states and political subdivisions ​ $ 466,588 ​ $ 3,844 ​ $ (1,941) ​ $ 468,491 Corporate and other bonds (1) ​ 167,561 ​ 1,118 ​ (983) ​ 167,696 Mortgage-backed securities ​ 1,138,034 ​ 4,452 ​ (12,621) ​ 1,129,865 Other securities ​ 8,769 ​ — ​ — ​ 8,769 Total AFS securities ​ $ 1,780,952 ​ $ 9,414 ​ $ (15,545) ​ $ 1,774,821 (1) Other bonds includes asset-backed securities. ​ The following table shows the gross unrealized losses and fair value (dollars in thousands) of the Company’s AFS securities with unrealized losses that are not deemed to be other-than-temporarily impaired as of December 31, 2019 and 2018. These are aggregated by investment category and length of time that the individual securities have been in a continuous unrealized loss position. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Less than 12 months ​ More than 12 months ​ Total ​ Fair Unrealized Fair Unrealized Fair Unrealized ​ ​ Value ​ Losses ​ Value ​ Losses ​ Value ​ Losses December 31, 2019 ​ ​ ​ ​ ​ ​ Obligations of states and political subdivisions ​ $ 4,526 ​ $ (29) ​ $ — ​ $ — ​ $ 4,526 ​ $ (29) Corporate and other bonds (1) ​ 44,567 ​ (255) ​ 19,902 ​ (291) ​ 64,469 ​ (546) Mortgage-backed securities ​ 149,255 ​ (920) ​ 55,133 ​ (405) ​ 204,388 ​ (1,325) Total AFS securities ​ $ 198,348 ​ $ (1,204) ​ $ 75,035 ​ $ (696) ​ $ 273,383 ​ $ (1,900) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2018 ​ ​ ​ ​ ​ ​ Obligations of states and political subdivisions ​ $ 133,513 ​ $ (1,566) ​ $ 10,145 ​ $ (375) ​ $ 143,658 ​ $ (1,941) Corporate and other bonds (1) ​ 35,478 ​ (315) ​ 33,888 ​ (668) ​ 69,366 ​ (983) Mortgage-backed securities ​ 306,038 ​ (3,480) ​ 341,400 ​ (9,141) ​ 647,438 ​ (12,621) Total AFS securities ​ $ 475,029 ​ $ (5,361) ​ $ 385,433 ​ $ (10,184) ​ $ 860,462 ​ $ (15,545) ​ (1) Other bonds includes asset-backed securities ​ As of December 31, 2019, there were $75.0 million, or 47 issues, of individual AFS securities that had been in a continuous loss position for more than 12 months. These securities had an unrealized loss of $696,000 and consisted of mortgage-backed securities, corporate bonds, and other securities. As of December 31, 2018, there were $385.4 million, or 138 issues, of individual securities that had been in a continuous loss position for more than 12 months. These securities had an unrealized loss of $10.2 million and consisted of municipal obligations, mortgage-backed securities, corporate bonds, and other securities. The Company has determined that these securities are temporarily impaired at December 31, 2019 and 2018 for the reasons set out below: Mortgage-backed securities. Obligations of state and political subdivisions. Corporate and other bonds. The following table presents the amortized cost and estimated fair value of AFS securities as of December 31, 2019 and 2018, 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, 2019 December 31, 2018 ​ Amortized Estimated Amortized Estimated ​ ​ Cost ​ Fair Value ​ Cost ​ Fair Value Due in one year or less ​ $ 35,046 ​ $ 35,197 ​ $ 22,653 ​ $ 22,789 Due after one year through five years ​ 164,605 ​ 166,873 ​ 191,003 ​ 188,999 Due after five years through ten years ​ 249,712 ​ 254,790 ​ 218,211 ​ 217,304 Due after ten years ​ 1,444,064 ​ 1,488,585 ​ 1,349,085 ​ 1,345,729 Total AFS securities ​ $ 1,893,427 ​ $ 1,945,445 ​ $ 1,780,952 ​ $ 1,774,821 ​ For information regarding the estimated fair value of AFS securities which were pledged to secure public deposits, repurchase agreements, and for other purposes as permitted or required by law as of December 31, 2019 and 2018, see Note 10 "Commitments and Contingencies." Held to Maturity 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." The Company reports HTM securities on the 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 securities AFS to securities held to maturity. 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 securities held to maturity as of December 31, 2019 and 2018 are summarized as follows (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Carrying ​ Gross Unrealized ​ Estimated ​ Value Gains (Losses) Fair Value December 31, 2019 ​ ​ ​ ​ Obligations of states and political subdivisions ​ $ 545,148 ​ $ 48,274 ​ $ — ​ $ 593,422 Mortgage-backed securities ​ 9,996 ​ 85 ​ — ​ 10,081 Total held-to-maturity securities ​ $ 555,144 ​ $ 48,359 ​ $ — ​ $ 603,503 December 31, 2018 ​ ​ ​ ​ Obligations of states and political subdivisions ​ $ 492,272 ​ $ 7,375 ​ $ (146) ​ $ 499,501 ​ The following table shows the gross unrealized losses and fair value (dollars in thousands) of the Company’s held to maturity securities with unrealized losses that are not deemed to be other-than-temporarily impaired as of December 31, 2019 and 2018. These are aggregated by investment category and length of time that the individual securities have been in a continuous unrealized loss position. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Less than 12 months ​ More than 12 months ​ Total ​ Fair Unrealized Fair Unrealized Fair Unrealized ​ ​ Value ​ Losses ​ Value ​ Losses ​ Value ​ Losses December 31, 2019 ​ ​ ​ ​ ​ ​ Obligations of states and political subdivisions ​ $ — ​ $ — ​ $ — ​ $ — ​ $ — ​ $ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2018 ​ ​ ​ ​ ​ ​ Obligations of states and political subdivisions ​ $ 43,206 ​ $ (146) ​ $ — ​ $ — ​ $ 43,206 ​ $ (146) ​ The following table presents the amortized cost and estimated fair value of HTM securities as of December 31, 2019 and 2018, 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, 2019 ​ December 31, 2018 ​ Carrying Estimated Carrying Estimated ​ ​ Value ​ Fair Value ​ Value ​ Fair Value Due in one year or less ​ $ 502 ​ $ 504 ​ $ — ​ $ — Due after one year through five years ​ 10,258 ​ 10,539 ​ 3,893 ​ 3,900 Due after five years through ten years ​ 1,768 ​ 1,800 ​ 3,480 ​ 3,507 Due after ten years ​ 542,616 ​ 590,660 ​ 484,899 ​ 492,094 Total HTM securities ​ $ 555,144 ​ $ 603,503 ​ $ 492,272 ​ $ 499,501 ​ For information regarding the estimated fair value of HTM securities which were pledged to secure public deposits, repurchase agreements, and for other purposes as permitted or required by law as of December 31, 2019 and 2018, see Note 10 "Commitments and Contingencies." Restricted Stock, at cost Due to restrictions placed upon the Bank’s common stock investment in the Federal Reserve Bank 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. At both December 31, 2019 and 2018, the FHLB required the Bank to maintain stock in an amount equal to 4.25% of outstanding borrowings and a specific percentage of the Bank’s total assets. The Federal Reserve Bank required the Bank to maintain stock with a par value equal to 6% of its outstanding capital at both December 31, 2019 and 2018. Restricted equity securities consist of Federal Reserve Bank stock in the amount of $67.0 million and $52.6 million for December 31, 2019 and 2018 and FHLB stock in the amount of $63.9 million and $72.0 million as of December 31, 2019 and 2018, respectively. Other-Than-Temporary Impairment During each quarter and at year end the Company conducts an assessment of the securities portfolio for OTTI consideration. The assessment considers factors such as external credit ratings, delinquency coverage ratios, market price, management’s judgment, expectations of future performance, and relevant industry research and analysis. An impairment is other-than-temporary if any of the following conditions exist: the entity intends to sell the security; it is more likely than not that the entity will be required to sell the security before recovery of its amortized cost basis; or the entity does not expect to recover the security’s entire amortized cost basis (even if the entity does not intend to sell). If a credit loss exists, but an entity does not intend to sell the impaired debt security and is not more likely than not to be required to sell before recovery, the impairment is other-than-temporary and should be separated into a credit portion to be recognized in earnings and the remaining amount relating to all other factors recognized as other comprehensive loss. Based on the assessments during the years ended December 31, 2019 and 2018, and in accordance with the guidance, no OTTI was recognized. 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, 2019, 2018, and 2017 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2019 2018 2017 Realized gains (losses): ​ ​ ​ ​ ​ ​ ​ ​ ​ Gross realized gains $ 9,530 $ 4,221 $ 1,170 Gross realized losses ​ (1,855) ​ (3,838) ​ (370) Net realized gains $ 7,675 $ 383 $ 800 Proceeds from sales of securities $ 514,070 $ 515,764 $ 139,046 ​

LOANS AND ALLOWANCE FOR LOAN LO

LOANS AND ALLOWANCE FOR LOAN LOSSES	12 Months Ended
	Dec. 31, 2019
Loans and Leases Receivable Disclosure [Abstract]
LOANS AND ALLOWANCE FOR LOAN LOSSES	​ ​ 4. LOANS AND ALLOWANCE FOR LOAN LOSSES Loans are stated at their face amount, net of deferred fees and costs, and consist of the following at December 31, 2019 and 2018 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2019 2018 Construction and Land Development ​ $ 1,250,924 ​ $ 1,194,821 Commercial Real Estate - Owner Occupied ​ 2,041,243 ​ 1,337,345 Commercial Real Estate - Non-Owner Occupied ​ 3,286,098 ​ 2,467,410 Multifamily Real Estate ​ 633,743 ​ 548,231 Commercial & Industrial ​ 2,114,033 ​ 1,317,135 Residential 1-4 Family - Commercial ​ 724,337 ​ 640,419 Residential 1-4 Family - Consumer ​ 890,503 ​ 673,909 Residential 1-4 Family - Revolving ​ 659,504 ​ 613,383 Auto ​ 350,419 ​ 301,943 Consumer ​ 372,853 ​ 379,694 Other Commercial ​ 287,279 ​ 241,917 Total loans held for investment, net ​ $ 12,610,936 ​ $ 9,716,207 ​ The following table shows the aging of the Company’s loan portfolio, by segment, 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 ​ ​ ​ The following table shows the aging of the Company’s loan portfolio, by segment, at December 31, 2018 (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 ​ $ 759 ​ $ 6 ​ $ 180 ​ $ 8,654 ​ $ 8,018 ​ $ 1,177,204 ​ $ 1,194,821 Commercial Real Estate - Owner Occupied ​ 8,755 ​ 1,142 ​ 3,193 ​ 25,644 ​ 3,636 ​ 1,294,975 ​ 1,337,345 Commercial Real Estate - Non-Owner Occupied ​ 338 ​ 41 ​ — ​ 17,335 ​ 1,789 ​ 2,447,907 ​ 2,467,410 Multifamily Real Estate ​ — ​ 146 ​ — ​ 88 ​ — ​ 547,997 ​ 548,231 Commercial & Industrial ​ 3,353 ​ 389 ​ 132 ​ 2,156 ​ 1,524 ​ 1,309,581 ​ 1,317,135 Residential 1-4 Family - Commercial ​ 6,619 ​ 1,577 ​ 1,409 ​ 13,601 ​ 2,481 ​ 614,732 ​ 640,419 Residential 1-4 Family - Consumer ​ 12,049 ​ 5,143 ​ 2,437 ​ 16,872 ​ 7,276 ​ 630,132 ​ 673,909 Residential 1-4 Family - Revolving ​ 4,611 ​ 1,644 ​ 440 ​ 5,115 ​ 1,518 ​ 600,055 ​ 613,383 Auto ​ 3,320 ​ 403 ​ 195 ​ 7 ​ 576 ​ 297,442 ​ 301,943 Consumer ​ 1,504 ​ 1,096 ​ 870 ​ 32 ​ 135 ​ 376,057 ​ 379,694 Other Commercial ​ ​ 126 ​ ​ — ​ ​ — ​ ​ 717 ​ ​ — ​ ​ 241,074 ​ ​ 241,917 Total loans held for investment ​ $ 41,434 ​ $ 11,587 ​ $ 8,856 ​ $ 90,221 ​ $ 26,953 ​ $ 9,537,156 ​ $ 9,716,207 ​ ​ Nonaccrual loans totaled $28.2 million, $27.0 million, and $21.7 million at December 31, 2019, 2018 and 2017, respectively. Had these loans performed in accordance with their original terms, interest income of approximately $1.8 million, $2.3 million, and $698,000 would have been recorded in 2019, 2018, and 2017, respectively. All nonaccrual loans were included in the impaired loan disclosure in 2019 and 2018. The following table shows the PCI loan portfolios, by segment 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 ​ ​ The following table shows the PCI loan portfolios, by segment and their delinquency status, at December 31, 2018 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 30-89 Days Greater than ​ ​ ​ ​ ​ ​ Past Due ​ 90 Days ​ Current ​ Total Construction and Land Development ​ $ 108 ​ $ 1,424 ​ $ 7,122 ​ $ 8,654 Commercial Real Estate - Owner Occupied ​ 658 ​ 4,281 ​ 20,705 ​ 25,644 Commercial Real Estate - Non-Owner Occupied ​ 61 ​ 1,810 ​ 15,464 ​ 17,335 Multifamily Real Estate ​ — ​ — ​ 88 ​ 88 Commercial & Industrial ​ 47 ​ 1,092 ​ 1,017 ​ 2,156 Residential 1-4 Family - Commercial ​ 871 ​ 3,454 ​ 9,276 ​ 13,601 Residential 1-4 Family - Consumer ​ 1,959 ​ 2,422 ​ 12,491 ​ 16,872 Residential 1-4 Family - Revolving ​ 498 ​ 252 ​ 4,365 ​ 5,115 Auto ​ ​ — ​ ​ — ​ ​ 7 ​ ​ 7 Consumer ​ ​ 5 ​ ​ 9 ​ ​ 18 ​ ​ 32 Other Commercial ​ 57 ​ — ​ 660 ​ 717 Total ​ $ 4,264 ​ $ 14,744 ​ $ 71,213 ​ $ 90,221 ​ ​ The Company measures 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 segment at December 31, 2019 and 2018 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019 ​ December 31, 2018 ​ ​ ​ Unpaid ​ ​ ​ ​ Unpaid ​ ​ ​ ​ Recorded ​ Principal ​ Related ​ Recorded ​ Principal ​ Related ​ ​ Investment ​ Balance ​ Allowance ​ Investment ​ Balance ​ Allowance Loans without a specific allowance ​ ​ ​ ​ ​ ​ Construction and Land Development ​ $ 5,877 ​ $ 7,174 ​ $ — ​ $ 10,290 ​ $ 12,038 ​ $ — Commercial Real Estate - Owner Occupied ​ 8,801 ​ 9,296 ​ — ​ 8,386 ​ 9,067 ​ — Commercial Real Estate - Non-Owner Occupied ​ 3,510 ​ 4,059 ​ — ​ 6,578 ​ 6,929 ​ — Commercial & Industrial ​ 3,668 ​ 3,933 ​ — ​ 3,059 ​ 3,251 ​ — Residential 1-4 Family - Commercial ​ 4,047 ​ 4,310 ​ — ​ 3,378 ​ 3,439 ​ — Residential 1-4 Family - Consumer ​ 8,420 ​ 9,018 ​ — ​ 9,642 ​ 10,317 ​ — Residential 1-4 Family - Revolving ​ 862 ​ 865 ​ — ​ 1,150 ​ 1,269 ​ — Consumer ​ ​ — ​ ​ — ​ ​ — ​ ​ 30 ​ ​ 102 ​ ​ — Other Commercial ​ — ​ — ​ — ​ 478 ​ 478 ​ — Total impaired loans without a specific allowance ​ $ 35,185 ​ $ 38,655 ​ $ — ​ $ 42,991 ​ $ 46,890 ​ $ — Loans with a specific allowance ​ ​ ​ ​ ​ ​ Construction and Land Development ​ $ 984 ​ $ 1,032 ​ $ 49 ​ $ 372 ​ $ 491 ​ $ 63 Commercial Real Estate - Owner Occupied ​ 2,820 ​ 3,093 ​ 146 ​ 4,304 ​ 4,437 ​ 359 Commercial Real Estate - Non-Owner Occupied ​ 335 ​ 383 ​ 2 ​ 391 ​ 391 ​ 1 Commercial & Industrial ​ 2,568 ​ 2,590 ​ 619 ​ 1,183 ​ 1,442 ​ 752 Residential 1-4 Family - Commercial ​ 1,726 ​ 1,819 ​ 162 ​ 2,120 ​ 2,152 ​ 89 Residential 1-4 Family - Consumer ​ 12,026 ​ 12,670 ​ 1,242 ​ 6,389 ​ 6,645 ​ 470 Residential 1-4 Family - Revolving ​ 2,186 ​ 2,369 ​ 510 ​ 724 ​ 807 ​ 188 Auto ​ 563 ​ 879 ​ 221 ​ 576 ​ 830 ​ 231 Consumer ​ 168 ​ 336 ​ 46 ​ 178 ​ 467 ​ 64 Other Commercial ​ ​ 562 ​ ​ 567 ​ ​ 30 ​ ​ — ​ ​ — ​ ​ — Total impaired loans with a specific allowance ​ $ 23,938 ​ $ 25,738 ​ $ 3,027 ​ $ 16,237 ​ $ 17,662 ​ $ 2,217 Total impaired loans ​ $ 59,123 ​ $ 64,393 ​ $ 3,027 ​ $ 59,228 ​ $ 64,552 ​ $ 2,217 ​ ​ The following table shows the average recorded investment and interest income recognized for the Company’s impaired loans, excluding PCI loans, by segment for the years ended December 31, 2019, 2018 and 2017 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019 ​ December 31, 2018 ​ December 31, 2017 ​ ​ ​ Interest ​ ​ Interest ​ ​ Interest ​ ​ Average ​ Income ​ Average ​ Income ​ Average ​ Income ​ ​ Investment ​ Recognized ​ Investment ​ Recognized ​ Investment ​ Recognized Construction and Land Development ​ $ 6,764 ​ $ 110 ​ $ 11,648 ​ $ 234 ​ $ 17,080 ​ $ 590 Commercial Real Estate - Owner Occupied ​ 12,258 ​ 323 ​ 13,383 ​ 499 ​ 6,580 ​ 306 Commercial Real Estate - Non-Owner Occupied ​ 4,775 ​ 147 ​ 7,157 ​ 246 ​ 6,083 ​ 172 Commercial & Industrial ​ 6,438 ​ 293 ​ 4,672 ​ 232 ​ 3,208 ​ 150 Residential 1-4 Family - Commercial ​ 6,145 ​ 120 ​ 5,667 ​ 180 ​ 4,422 ​ 162 Residential 1-4 Family - Consumer ​ 20,963 ​ 308 ​ 16,977 ​ 236 ​ 12,812 ​ 222 Residential 1-4 Family - Revolving ​ 3,256 ​ 82 ​ 2,000 ​ 23 ​ 2,659 ​ 36 Auto ​ 788 ​ 15 ​ 824 ​ 20 ​ 579 ​ 19 Consumer ​ 187 ​ 5 ​ 263 ​ 5 ​ 428 ​ 14 Other Commercial ​ ​ 584 ​ ​ 22 ​ ​ 486 ​ ​ 27 ​ ​ 382 ​ ​ 22 Total impaired loans ​ $ 62,158 ​ $ 1,425 ​ $ 63,077 ​ $ 1,702 ​ $ 54,233 ​ $ 1,693 ​ The Company considers 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. For the year ended December 31, 2019, the recorded investment in TDRs prior to modifications was not materially impacted by the modifications. The following table provides a summary, by segment, of TDRs that continue to accrue interest under the terms of the 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 and 2018 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019 ​ December 31, 2018 ​ No. of Recorded Outstanding No. of Recorded Outstanding ​ ​ Loans ​ Investment ​ Commitment ​ Loans ​ Investment ​ Commitment Performing ​ ​ ​ ​ Construction and Land Development 4 ​ $ 1,114 ​ $ — 5 ​ $ 2,496 ​ $ — Commercial Real Estate - Owner Occupied 6 ​ 2,228 ​ 26 8 ​ 2,783 ​ — Commercial Real Estate - Non-Owner Occupied 1 ​ 1,089 ​ — 4 ​ 4,438 ​ — Commercial & Industrial 4 ​ 1,020 ​ — 4 ​ 978 ​ — Residential 1-4 Family - Commercial 5 ​ 290 ​ — 8 ​ 1,075 ​ — Residential 1-4 Family - Consumer 69 ​ 9,396 ​ — 52 ​ 6,882 ​ — Residential 1-4 Family - Revolving 2 ​ 56 ​ — 2 ​ 58 ​ — Consumer 4 ​ 29 ​ — 1 ​ 13 ​ — Other Commercial ​ 1 ​ ​ 464 ​ ​ — ​ 1 ​ ​ 478 ​ ​ — Total performing 96 ​ $ 15,686 ​ $ 26 85 ​ $ 19,201 ​ $ — Nonperforming ​ ​ ​ ​ Construction and Land Development — ​ $ — ​ $ — 2 ​ $ 3,474 ​ $ — Commercial Real Estate - Owner Occupied 2 ​ 176 ​ — 2 ​ 198 ​ — Commercial & Industrial 1 ​ 55 ​ — 6 ​ 461 ​ — Residential 1-4 Family - Commercial — ​ — ​ — 1 ​ 60 ​ — Residential 1-4 Family - Consumer 19 ​ 3,522 ​ — 15 ​ 3,135 ​ — Residential 1-4 Family - Revolving 2 ​ 57 ​ — 2 ​ 62 ​ — Consumer ​ — ​ ​ — ​ ​ — ​ 1 ​ ​ 7 ​ ​ — Total nonperforming 24 ​ $ 3,810 ​ $ — 29 ​ $ 7,397 ​ $ — Total performing and nonperforming 120 ​ $ 19,496 ​ $ 26 114 ​ $ 26,598 ​ $ — ​ 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 years ended December 31, 2019 and 2018, 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 segment and modification type, TDRs that occurred during the years ended December 31, 2019 and 2018 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ All Restructurings ​ ​ 2019 ​ 2018 ​ ​ Recorded ​ Recorded ​ ​ No. of ​ Investment at ​ No. of ​ Investment at ​ ​ Loans ​ Period End ​ 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 ​ ​ Construction and Land Development — ​ $ — 4 ​ $ 4,675 Commercial Real Estate - Owner Occupied — ​ — 5 ​ 1,365 Commercial Real Estate - Non-Owner Occupied — ​ — 1 ​ 1,089 Commercial & Industrial 1 ​ 376 3 ​ 334 Residential 1-4 Family - Commercial 1 ​ 72 1 ​ 71 Residential 1-4 Family - Consumer 7 ​ 1,688 9 ​ 1,079 Consumer ​ 3 ​ ​ 24 ​ 1 ​ ​ 13 Total loan term extended at a market rate 12 ​ $ 2,160 24 ​ $ 8,626 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Term modification, below market rate ​ ​ Construction and Land Development ​ 3 ​ $ 193 ​ — ​ $ — Commercial Real Estate - Non-Owner Occupied — ​ — 1 ​ ​ 2,782 Residential 1-4 Family - Consumer 22 ​ 2,658 19 ​ 2,783 Residential 1-4 Family - Revolving — ​ — 2 ​ ​ 46 Consumer 1 ​ 5 — ​ — Total loan term extended at a below market rate 26 ​ $ 2,856 22 ​ $ 5,611 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest rate modification, below market rate ​ ​ Residential 1-4 Family - Commercial — ​ $ — 1 ​ $ 265 Total interest only at below market rate of interest — ​ $ — 1 ​ $ 265 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total 38 ​ $ 5,016 47 ​ $ 14,502 ​ ​ The following tables show the allowance for loan loss activity by segment for the year ended December 31, 2019, 2018, and 2017. 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 of ​ credited to ​ charged ​ charged to ​ end 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. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, 2017 ​ ​ 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 ​ $ 10,055 ​ $ 206 ​ $ (2,190) ​ $ 1,638 ​ $ 9,709 Commercial Real Estate - Owner Occupied ​ 3,801 ​ 171 ​ (46) ​ (995) ​ 2,931 Commercial Real Estate - Non-Owner Occupied ​ 6,622 ​ 2 ​ (1,180) ​ 2,100 ​ 7,544 Multifamily Real Estate ​ 1,236 ​ — ​ — ​ (144) ​ 1,092 Commercial & Industrial ​ 4,627 ​ 483 ​ (2,277) ​ 1,719 ​ 4,552 Residential 1-4 Family - Commercial ​ 3,698 ​ 329 ​ (463) ​ 873 ​ 4,437 Residential 1-4 Family - Consumer ​ 2,701 ​ 102 ​ (588) ​ (691) ​ 1,524 Residential 1-4 Family - Revolving ​ 1,328 ​ 314 ​ (1,019) ​ 737 ​ 1,360 Auto ​ 946 ​ 459 ​ (1,038) ​ 608 ​ 975 Consumer and all other (1) ​ 2,178 ​ 1,189 ​ (4,509) ​ 5,226 ​ 4,084 Total ​ $ 37,192 ​ $ 3,255 ​ $ (13,310) ​ $ 11,071 ​ $ 38,208 ​ (1) Consumer and Other Commercial are grouped together as Consumer and all other for reporting purposes. The following tables show the loan and allowance for loan loss balances based on impairment methodology by segment as of December 31, 2019 and 2018 (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. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2018 ​ ​ 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 ​ $ 10,662 ​ $ 63 ​ $ 1,175,505 ​ $ 6,740 ​ $ 8,654 ​ $ — ​ $ 1,194,821 ​ $ 6,803 Commercial Real Estate - Owner Occupied ​ 12,690 ​ 359 ​ 1,299,011 ​ 3,664 ​ 25,644 ​ — ​ 1,337,345 ​ 4,023 Commercial Real Estate - Non-Owner Occupied ​ 6,969 ​ 1 ​ 2,443,106 ​ 8,864 ​ 17,335 ​ — ​ 2,467,410 ​ 8,865 Multifamily Real Estate ​ — ​ — ​ 548,143 ​ 649 ​ 88 ​ — ​ 548,231 ​ 649 Commercial & Industrial ​ 4,242 ​ 752 ​ 1,310,737 ​ 6,884 ​ 2,156 ​ — ​ 1,317,135 ​ 7,636 Residential 1-4 Family - Commercial ​ 5,498 ​ 89 ​ 621,320 ​ 1,603 ​ 13,601 ​ — ​ 640,419 ​ 1,692 Residential 1-4 Family - Consumer ​ 16,031 ​ 470 ​ 641,006 ​ 1,022 ​ 16,872 ​ — ​ 673,909 ​ 1,492 Residential 1-4 Family - Revolving ​ 1,874 ​ 188 ​ 606,394 ​ 1,109 ​ 5,115 ​ — ​ 613,383 ​ 1,297 Auto ​ 576 ​ 231 ​ 301,360 ​ 1,212 ​ 7 ​ — ​ 301,943 ​ 1,443 Consumer and all other (1) ​ 686 ​ 64 ​ 620,176 ​ 7,081 ​ 749 ​ — ​ 621,611 ​ 7,145 Total loans held for investment, net ​ $ 59,228 ​ $ 2,217 ​ $ 9,566,758 ​ $ 38,828 ​ $ 90,221 ​ $ — ​ $ 9,716,207 ​ $ 41,045 (1) Consumer and Other Commercial are grouped together as Consumer and all other for reporting purposes. ​ The Company uses a risk rating system and past due status as the primary credit quality indicators for the loan categories. 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 loan losses; on those loans without a risk rating, the Company uses past due status to determine risk level. 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; or ● Loans that are not risk rated but that are 0 to 29 days past due. Watch & Special Mention 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; ● 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; or ● Loans that are not risk rated but that are 30 to 89 days past due. 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; or ● Loans that are not risk rated but that are 90 to 149 days past due. 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; or ● Loans that are not risk rated but that are over 149 days past due. The following table shows the recorded investment in all loans, excluding PCI loans, by segment 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 ​ The following table shows the recorded investment in all loans, excluding PCI loans, by segment with their related risk level as of December 31, 2018 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass Watch & Special Mention Substandard Doubtful Total Construction and Land Development ​ $ 1,130,577 ​ $ 43,894 ​ $ 11,696 ​ $ — ​ $ 1,186,167 Commercial Real Estate - Owner Occupied ​ 1,231,422 ​ 50,939 ​ 29,340 ​ — ​ 1,311,701 Commercial Real Estate - Non-Owner Occupied ​ 2,425,500 ​ 17,648 ​ 6,927 ​ — ​ 2,450,075 Multifamily Real Estate ​ 537,572 ​ 10,571 ​ — ​ — ​ 548,143 Commercial & Industrial ​ 1,273,549 ​ 34,864 ​ 6,566 ​ — ​ 1,314,979 Residential 1-4 Family - Commercial ​ 606,955 ​ 14,876 ​ 4,987 ​ — ​ 626,818 Residential 1-4 Family - Consumer ​ 624,346 ​ 17,065 ​ 15,626 ​ — ​ 657,037 Residential 1-4 Family - Revolving ​ 598,444 ​ 6,316 ​ 3,508 ​ — ​ 608,268 Auto ​ 296,907 ​ 3,590 ​ 1,439 ​ — ​ 301,936 Consumer ​ 378,873 ​ 547 ​ 242 ​ — ​ 379,662 Other Commercial ​ 239,857 ​ 864 ​ 479 ​ — ​ 241,200 Total ​ $ 9,344,002 ​ $ 201,174 ​ $ 80,810 ​ $ — ​ $ 9,625,986 ​ The following table shows the recorded investment in only PCI loans by segment 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 ​ ​ ​ ​ ​ The following table shows the recorded investment in only PCI loans by segment with their related risk level as of December 31, 2018 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass Watch & Special Mention Substandard Doubtful Total Construction and Land Development ​ $ 1,835 ​ $ 1,308 ​ $ 5,511 ​ $ — ​ $ 8,654 Commercial Real Estate - Owner Occupied ​ 8,347 ​ 6,685 ​ 10,612 ​ — ​ 25,644 Commercial Real Estate - Non-Owner Occupied ​ 4,789 ​ 7,992 ​ 4,554 ​ — ​ 17,335 Multifamily Real Estate ​ — ​ 88 ​ — ​ — ​ 88 Commercial & Industrial ​ 762 ​ 134 ​ 1,260 ​ — ​ 2,156 Residential 1-4 Family - Commercial ​ 6,476 ​ 2,771 ​ 4,354 ​ — ​ 13,601 Residential 1-4 Family - Consumer ​ 9,930 ​ 1,030 ​ 5,912 ​ — ​ 16,872 Residential 1-4 Family - Revolving ​ 3,438 ​ 1,031 ​ 646 ​ — ​ 5,115 Auto ​ ​ 7 ​ ​ — ​ ​ — ​ ​ — ​ ​ 7 Consumer ​ 17 ​ — ​ 15 ​ — ​ 32 Other Commercial ​ ​ 57 ​ ​ 660 ​ ​ — ​ ​ — ​ ​ 717 Total ​ $ 35,658 ​ $ 21,699 ​ $ 32,864 ​ $ — ​ $ 90,221 ​ Loans acquired are originally recorded at fair value, with certain loans being identified as impaired at the date of purchase. The fair values were determined based on the credit quality of the portfolio, expected future cash flows, and timing of those expected future cash flows. 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, ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ For the Year Ended December 31, ​ 2019 2018 Balance at beginning of period ​ $ 31,201 ​ $ 14,563 Additions ​ 5,060 ​ 12,225 Accretion ​ (13,432) ​ (8,654) Reclass of nonaccretable difference due to improvement in expected cash flows ​ 4,485 ​ 1,876 Measurement period adjustment ​ 631 ​ 3,974 Other, net (1) ​ 3,329 ​ 7,217 Balance at end of period ​ $ 31,274 ​ $ 31,201 (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. The carrying value of the Company’s PCI loan portfolio, accounted for under ASC 310-30, totaled $86.7 million at December 31, 2019 and $90.2 million at December 31, 2018. The outstanding balance of the Company’s PCI loan portfolio totaled $104.9 million at December 31, 2019 and $113.5 million at December 31, 2018. The carrying value of the Company’s acquired performing loan portfolio, accounted for under ASC 310-20, Receivables – Nonrefundable Fees and Other Costs

PREMISES AND EQUIPMENT

PREMISES AND EQUIPMENT	12 Months Ended
	Dec. 31, 2019
Property, Plant and Equipment [Abstract]
PREMISES AND EQUIPMENT	​ 5. PREMISES AND EQUIPMENT Amounts presented 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, 2019 and 2018 are as follows (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ 2019 2018 Land ​ $ 44,578 ​ $ 41,494 Land improvements and buildings ​ 123,189 ​ 119,649 Leasehold improvements ​ 20,597 ​ 10,266 Furniture and equipment ​ 71,469 ​ 62,154 Construction in progress ​ 3,549 ​ 6,956 Total ​ 263,382 ​ 240,519 Less accumulated depreciation and amortization ​ 102,309 ​ 93,552 Bank premises and equipment, net ​ $ 161,073 ​ $ 146,967 ​ Depreciation expense for the years ended December 31, 2019, 2018, and 2017 was $15.0 million, $13.6 million, and $10.9 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. ​

INTANGIBLE ASSETS

INTANGIBLE ASSETS	12 Months Ended
	Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
INTANGIBLE ASSETS	6. 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. Refer to Note 2 "Acquisitions" for further information regarding intangible assets. In accordance with ASC 350, Intangibles-Goodwill and Other, 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, 2019 ​ ​ ​ Core deposit intangibles ​ $ 135,300 ​ $ 73,336 ​ $ 61,964 Other amortizable intangibles ​ 15,349 ​ 3,644 ​ 11,705 December 31, 2018 ​ ​ ​ Core deposit intangibles ​ $ 95,152 ​ $ 57,293 ​ $ 37,859 Other amortizable intangibles ​ 12,695 ​ 1,870 ​ 10,825 ​ Amortization expense of intangibles for the years ended December 31, 2019, 2018, and 2017 totaled $18.5 million, $12.8 million, and $6.1 million, respectively. As of December 31, 2019, the estimated remaining amortization expense of intangibles for the years ended is as follows (dollars in thousands): ​ ​ ​ ​ ​ 2020 $ 16,483 2021 ​ ​ 13,874 2022 ​ ​ 11,490 2023 ​ ​ 9,687 2024 ​ ​ 7,819 Thereafter ​ ​ 14,316 Total estimated amortization expense ​ $ 73,669 ​

LEASES

LEASES	12 Months Ended
	Dec. 31, 2019
Leases [Abstract]
LEASES	​ ​ 7. LEASES The Company leases branch locations, office space, land, and equipment. The Company determines if an arrangement is a lease at inception. As of December 31, 2019, all leases have been classified as operating leases with approximately 160 non-cancellable operating leases where the Company is the lessee. The Company does not have any material arrangements where the Company is the lessor or in a sublease contract. Leases where the Company is a lessee are primarily for real estate leases with remaining lease terms of up to 14 years. The Company’s real estate lease agreements do not contain residual value guarantees and most agreements do not contain restrictive covenants. Operating leases have been reported on the Company’s Consolidated Balance Sheets as an operating ROU Asset within Other Assets and an operating lease liability within Other Liabilities. The ROU Asset represents the Company’s right to use an underlying asset over the course of the lease term and operating lease liabilities represent the Company’s obligation to make lease payments arising from the lease. Operating 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. The operating ROU Asset is 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. At December 31, 2019 the total ROU Asset was $54.9 million and total operating lease liabilities were $66.1 million. Most of the Company’s leases include one or more options to renew, however, the Company is not reasonably certain to exercise those options and therefore does not include the renewal options in the measurement of the ROU Asset and lease liabilities Total lease expenses are recorded in Occupancy Expense within noninterest expense on the Company’s Consolidated Statements of Income. Lease expense for lease payments is recognized on a straight-line basis over the lease term. Total operating lease expenses for the year ended December 31, 2019 were $11.5 million. As of December 31, 2019 the Company had no material sales leaseback transactions or operating leases that have not yet commenced that create significant rights and obligations. Maturities of operating lease liabilities as of December 31, 2019 are as follows for the years ending (dollars in thousands): ​ ​ ​ ​ 2020 $ 13,046 2021 ​ 11,321 2022 ​ 10,344 2023 ​ 9,377 2024 ​ 8,065 Thereafter ​ 21,025 Total future lease payments ​ 73,178 Less: Interest ​ 7,126 Present value of lease liabilities ​ $ 66,052 ​ ​ Other lease information is as follows (dollars in thousands): ​ ​ ​ ​ ​ ​ December 31, 2019 Lease Term and Discount Rate of Operating leases: ​ ​ Weighted-average remaining lease term (years) ​ 7.36 ​ Weighted-average discount rate (1) ​ 2.69 % Cash paid for amounts included in measurement of lease liabilities: ​ ​ Operating Cash Flows from Operating Leases ​ $ 13,697 ​ Right-of-use assets obtained in exchange for lease obligations: ​ ​ Operating leases ​ 8,065 ​ ​ (1) An incremental borrowing rate is used based on information available at commencement date of lease.

DEPOSITS

DEPOSITS	12 Months Ended
	Dec. 31, 2019
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): ​ ​ ​ ​ ​ ​ ​ ​ ​ 2019 2018 Interest-bearing deposits: ​ ​ NOW accounts ​ $ 2,905,714 ​ $ 2,288,523 Money market accounts ​ 3,951,856 ​ 2,875,301 Savings accounts ​ 727,847 ​ 622,823 Time deposits of $250,000 and over ​ 684,797 ​ 292,224 Other time deposits ​ 2,064,628 ​ 1,797,482 Total interest-bearing deposits ​ $ 10,334,842 ​ $ 7,876,353 ​ As of December 31, 2019, the scheduled maturities of time deposits are as follows for the years ended December 31, (dollars in thousands): ​ ​ ​ ​ ​ 2020 $ 1,626,492 2021 ​ 621,567 2022 ​ 199,507 2023 ​ 140,722 2024 ​ 160,465 Thereafter ​ 672 Total scheduled maturities of time deposits ​ $ 2,749,425 ​ The amount of time deposits held in CDARS accounts was $73.9 million and $118.3 million as of December 31, 2019 and 2018, respectively. The Company classifies deposit overdrafts as loans held for investment within the "Other Commercial" category. As of December 31, 2019 and 2018, these deposits totaled $2.6 million and $2.0 million, respectively. ​

BORROWINGS

BORROWINGS	12 Months Ended
	Dec. 31, 2019
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, 2019 and 2018 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2019 ​ 2018 Securities sold under agreements to repurchase ​ $ 66,053 ​ $ 39,197 ​ FHLB advances ​ 370,200 ​ 1,043,600 ​ Other short-term borrowings ​ — ​ 5,000 ​ Total short-term borrowings ​ $ 436,253 ​ $ 1,087,797 ​ ​ ​ ​ ​ ​ ​ ​ ​ Average outstanding balance during the period ​ $ 673,116 ​ $ 968,014 ​ Average interest rate (during the period) ​ 2.30 % 1.91 % Average interest rate at end of period ​ 1.52 % 2.43 % ​ The Bank maintains federal funds lines with several correspondent banks; the remaining available balance was $682.0 million and $382.0 million at December 31, 2019 and 2018 respectively. The Company maintains an alternate line of credit at a correspondent bank; the available balance was $25.0 million at both December 31, 2019 and 2018. 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, 2019. Additionally, the Company had a collateral dependent line of credit with the FHLB of up to $5.2 billion and $4.0 billion at December 31, 2019 and 2018, respectively. Long-term Borrowings In connection with several previous bank acquisitions, the Company issued and acquired trust preferred capital notes of $58.5 million and $87.0 million, respectively. 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 $14.9 million at December 31, 2019. The trust preferred capital notes currently qualify for Tier 2 capital of the Company for regulatory purposes. The Company’s trust preferred capital notes consist of the following as of December 31, 2019: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Trust ​ ​ ​ ​ ​ ​ ​ Preferred ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Capital ​ ​ ​ ​ Spread to ​ ​ ​ ​ ​ ​ Securities (1) ​ Investment (1) ​ 3-Month LIBOR ​ Rate (2) ​ Maturity Trust Preferred Capital Note - Statutory Trust I ​ $ 22,500,000 ​ $ 696,000 2.75 % 4.66 % 6/17/2034 Trust Preferred Capital Note - Statutory Trust II ​ 36,000,000 ​ 1,114,000 1.40 % 3.31 % 6/15/2036 VFG Limited Liability Trust I Indenture ​ 20,000,000 ​ 619,000 2.73 % 4.64 % 3/18/2034 FNB Statutory Trust II Indenture ​ 12,000,000 ​ 372,000 3.10 % 5.01 % 6/26/2033 Gateway Capital Statutory Trust I ​ 8,000,000 ​ 248,000 3.10 % 5.01 % 9/17/2033 Gateway Capital Statutory Trust II ​ 7,000,000 ​ 217,000 2.65 % 4.56 % 6/17/2034 Gateway Capital Statutory Trust III ​ 15,000,000 ​ 464,000 1.50 % 3.41 % 5/30/2036 Gateway Capital Statutory Trust IV ​ 25,000,000 ​ 774,000 1.55 % 3.46 % 7/30/2037 MFC Capital Trust II ​ 5,000,000 ​ 155,000 2.85 % 4.76 % 1/23/2034 Total ​ $ 150,500,000 ​ $ 4,659,000 (1) 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 Consolidated Balance Sheets. (2) Rate as of December 31, 2019. ​ During the fourth quarter of 2016, the Company issued $150.0 million of fixed-to-floating rate subordinated notes with an initial fixed interest rate of 5.00% through December 15, 2021. The interest rate then changes to a floating rate of LIBOR plus 3.175% through its maturity date on December 15, 2026. In connection with the acquisition of Xenith on January 1, 2018, the Company acquired $8.5 million of subordinated notes with a fair value premium of $259,000, which was $51,000 at December 31, 2019. The acquired subordinated notes have a fixed interest rate of 6.75% and a maturity date of June 30, 2025. At December 31, 2019 and 2018, the contractual principal reported for all subordinated notes was $158.5 million; remaining issuance discount as of December 31, 2019 and 2018 was $1.4 million and $1.6 million, respectively. The subordinated notes qualify as Tier 2 capital for the Company for regulatory purposes. The Company has certain restrictive covenants related to certain asset quality, capital, and profitability metrics associated with the acquired subordinated notes and was considered to be in compliance with these covenants as of December 31, 2019. 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. As of December 31, 2019, the Company had long-term advances from the FHLB consisting of the following (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Spread to ​ ​ ​ ​ ​ ​ 3-Month ​ Interest ​ ​ ​ ​ ​ Long-term Type ​ LIBOR ​ Rate (1) ​ Maturity Date ​ Advance Amount Convertible Flipper (0.75) % 1.16 % 8/17/2029 ​ $ 50,000 Convertible Flipper (0.50) % 1.41 % 5/15/2024 ​ 200,000 Convertible Flipper (0.75) % 1.16 % 5/22/2029 ​ 150,000 Convertible Flipper (0.75) % 1.16 % 5/30/2029 ​ 50,000 Convertible Flipper ​ (0.75) % 1.16 % 6/21/2029 ​ ​ 100,000 Fixed Rate Convertible ​ - ​ 1.78 % 10/26/2028 ​ ​ 200,000 Fixed Rate Hybrid ​ - ​ 1.58 % 5/18/2020 ​ ​ 20,000 Fixed Rate Credit ​ - ​ 1.54 % 10/2/2020 ​ ​ 10,000 ​ ​ ​ ​ ​ ​ ​ ​ $ 780,000 (1) Interest rates calculated using non-rounded numbers. As of December 31, 2018, the Company had long-term advances from the FHLB consisting of the following (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Spread to ​ ​ ​ ​ ​ ​ 3-Month ​ Interest ​ ​ ​ ​ ​ Long-term Type ​ LIBOR ​ Rate (1) ​ Maturity Date ​ Advance Amount Adjustable Rate Credit 0.44 % 3.25 % 8/23/2022 ​ $ 55,000 Adjustable Rate Credit 0.45 % 3.26 % 11/23/2022 ​ 65,000 Adjustable Rate Credit 0.45 % 3.26 % 11/23/2022 ​ 10,000 Adjustable Rate Credit 0.45 % 3.26 % 11/23/2022 ​ 10,000 Fixed Rate Convertible — 1.78 % 10/26/2028 ​ 200,000 Fixed Rate Hybrid — 2.37 % 10/10/2019 ​ 25,000 Fixed Rate Hybrid — 1.58 % 5/18/2020 ​ 20,000 ​ ​ ​ ​ ​ ​ ​ ​ $ 385,000 (1) Interest rates calculated using non-rounded numbers. For information on the carrying value of loans and securities pledged as collateral on FHLB advances as of December 31, 2019 and 2018, refer to Note 10 "Commitments and Contingencies". As of December 31, 2019, the contractual maturities of long-term debt are as follows for the years ending (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Trust ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Preferred ​ ​ ​ ​ ​ ​ ​ Fair Value ​ ​ ​ ​ ​ Capital ​ Subordinated ​ FHLB ​ Premium ​ Total Long-term ​ ​ Notes ​ Debt ​ Advances ​ (Discount) (1) ​ Borrowings 2020 ​ $ — ​ $ — ​ $ 30,000 ​ $ (834) ​ $ 29,166 2021 ​ — ​ — ​ — ​ (1,008) ​ (1,008) 2022 ​ — ​ — ​ — ​ (1,030) ​ (1,030) 2023 ​ — ​ — ​ — ​ (1,053) ​ (1,053) 2024 ​ — ​ — ​ 200,000 ​ (1,078) ​ 198,922 Thereafter ​ 155,159 ​ 158,500 ​ 550,000 ​ (11,161) ​ 852,498 Total long-term borrowings ​ $ 155,159 ​ $ 158,500 ​ $ 780,000 ​ $ (16,164) ​ $ 1,077,495 ​ (1) Includes discount on issued subordinated notes. ​

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	12 Months Ended
	Dec. 31, 2019
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 standby 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 rates, current economic conditions, risk ratings, and past due status among other factors in the consideration of whether credit losses are inherent 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, 2019 and 2018, the Company’s reserves for off-balance sheet credit risk and indemnification were $2.6 million and $1.4 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): ​ ​ ​ ​ ​ ​ ​ ​ ​ 2019 2018 Commitments with off-balance sheet risk: ​ ​ Commitments to extend credit (1) ​ $ 4,691,272 ​ $ 3,167,085 Standby letters of credit ​ 209,658 ​ 167,597 Total commitments with off-balance sheet risk ​ $ 4,900,930 ​ $ 3,334,682 ​ ​ ​ ​ ​ ​ ​ (1) Includes unfunded overdraft protection. ​ ​ ​ ​ ​ ​ ​ The Company must maintain a reserve against its deposits in accordance with Regulation D of the Federal Reserve Act. For the final weekly reporting period in the periods ended December 31, 2019 and 2018, the aggregate amount of daily average required reserves were approximately $6.3 million and $58.0 million, respectively, and was satisfied by deposits maintained with the Federal Reserve Bank. 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. The Company had approximately $11.6 million and $3.7 million in deposits in other financial institutions that were uninsured at December 31, 2019 and 2018, respectively. At least annually, the Company’s management evaluates the loss risk of its uninsured deposits in financial counterparties. 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, 2019 and 2018 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 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 market value. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (2) Balance represents book value. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pledged Assets as of December 31, 2018 ​ ​ ​ ​ ​ ​ AFS HTM ​ ​ ​ ​ ​ ​ Cash ​ Securities (1) ​ Securities (1) ​ Loans (2) ​ Total Public deposits ​ $ — ​ $ 293,169 ​ $ 7,407 ​ $ — ​ $ 300,576 Repurchase agreements ​ — ​ 55,269 ​ — ​ — ​ 55,269 FHLB advances ​ — ​ 488 ​ — ​ 3,337,289 ​ 3,337,777 Derivatives ​ 13,509 ​ 1,938 ​ — ​ — ​ 15,447 Other purposes ​ — ​ 23,217 ​ — ​ — ​ 23,217 Total pledged assets ​ $ 13,509 ​ $ 374,081 ​ $ 7,407 ​ $ 3,337,289 ​ $ 3,732,286 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (1) Balance represents book value. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (2) Balance represents market value. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

DERIVATIVES

DERIVATIVES	12 Months Ended
	Dec. 31, 2019
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 borrowings such as trust preferred capital notes, FHLB borrowings and certain prime based and commercial loans. 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 with a maximum hedging time through January 2021. 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 believes 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 quarter ended September 30, 2019, the Company terminated four interest rate swaps designated as cash flow hedges prior to their respective maturity dates. The net amount of losses immediately reclassified into earnings as the forecasted transaction will not occur totaled 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: ​ 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 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, 2019 and 2018, segregated by derivatives that are considered accounting hedges and those that are not (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019 December 31, 2018 ​ ​ ​ ​ ​ 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 ​ $ 152,500 ​ $ — ​ $ 4,786 Fair value hedges ​ 133,078 ​ 182 ​ 6,256 ​ 137,596 ​ 1,872 ​ 1,684 Derivatives not designated as accounting hedges: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Loan Swaps : ​ ​ ​ ​ ​ ​ Pay fixed - receive floating interest rate swaps ​ 1,575,149 ​ 753 ​ 53,592 ​ 878,446 ​ 10,120 ​ 9,306 Pay floating - receive fixed interest rate swaps ​ 1,575,149 ​ 53,592 ​ 753 ​ 878,446 ​ 9,306 ​ 10,120 (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, 2019 and 2018 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019 ​ December 31, 2018 ​ ​ ​ 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) ​ $ 206,799 ​ $ 4,072 ​ $ 224,241 ​ $ 1,399 Loans ​ 83,078 ​ 1,972 ​ 87,596 ​ (1,572) (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, 2019 and 2018, the amortized cost basis of this portfolio was $207 million and $224 million, respectively, and the cumulative basis adjustment associated with this hedge was $4.1 million and $1.4 million, respectively. The amount of the designated hedged item at December 31, 2019 and 2018 totaled $50 million. (2) Carrying value represents amortized cost. ​

STOCKHOLDERS' EQUITY

STOCKHOLDERS' EQUITY	12 Months Ended
	Dec. 31, 2019
Equity [Abstract]
STOCKHOLDERS' EQUITY	12. STOCKHOLDERS’ EQUITY Serial Preferred Stock The Company has the authority to issue up to 500,000 shares of serial preferred stock with a par value of $10.00 per share. As of December 31, 2019 and December 31, 2018, the Company had no shares issued or outstanding Accumulated Other Comprehensive Income (Loss) 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) ​ ​ ​ ​ ​ Securities ​ to HTM ​ Flow Hedges ​ on 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) on ​ ​ ​ ​ ​ Securities ​ to HTM ​ Flow Hedges ​ 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. The change in accumulated other comprehensive income (loss) for the year ended December 31, 2017 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, 2016 ​ $ (542) ​ $ 3,377 ​ $ (5,179) ​ $ (1,465) ​ $ (3,809) Other comprehensive income (loss): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other comprehensive income (loss) before reclassification ​ ​ 2,936 ​ — ​ (44) ​ — ​ 2,892 Amounts reclassified from AOCI into earnings ​ (520) ​ (672) ​ 862 ​ 363 ​ 33 Net current period other comprehensive income (loss) ​ ​ 2,416 ​ ​ (672) ​ ​ 818 ​ ​ 363 ​ ​ 2,925 Balance - December 31, 2017 ​ $ 1,874 ​ $ 2,705 ​ $ (4,361) ​ $ (1,102) ​ $ (884) ​

REGULATORY MATTERS AND CAPITAL

REGULATORY MATTERS AND CAPITAL	12 Months Ended
	Dec. 31, 2019
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, 2019, the most recent notification from the Federal Reserve Bank 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. The Company and the Bank’s capital amounts and ratios are also presented in the following table at December 31, 2019 and 2018 (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, 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 % As of December 31, 2018 ​ ​ ​ Common equity Tier 1 capital to risk weighted assets: ​ ​ ​ Consolidated ​ $ 1,106,871 9.93 % $ 501,608 4.50 % NA NA ​ Atlantic Union Bank ​ 1,378,039 12.40 % 500,224 4.50 % 722,546 6.50 % Tier 1 capital to risk weighted assets: ​ ​ ​ Consolidated ​ 1,236,709 11.09 % 668,817 6.00 % NA NA ​ Atlantic Union Bank ​ 1,378,039 12.40 % 666,965 6.00 % 889,287 8.00 % Total capital to risk weighted assets: ​ ​ ​ Consolidated ​ 1,435,711 12.88 % 891,753 8.00 % NA NA ​ Atlantic Union Bank ​ 1,419,984 12.77 % 889,289 8.00 % 1,111,612 10.00 % Tier 1 capital to average adjusted assets: ​ ​ ​ Consolidated ​ 1,236,709 9.71 % 509,678 4.00 % NA NA ​ Atlantic Union Bank ​ 1,378,039 10.84 % 508,412 4.00 % 635,515 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, 2019
Fair Value Disclosures [Abstract]
FAIR VALUE MEASUREMENTS	14. FAIR VALUE MEASUREMENTS The Company follows ASC 820, Fair Value Measurements and Disclosures 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, 2019 and 2018. 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, 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 IDC, which evaluates securities based on market data. IDC 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, 2019 and 2018. The carrying value of restricted Federal Reserve Bank and FHLB stock approximates fair value based on the redemption provisions of each entity and is therefore excluded from the following table. 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 tables present the balances of financial assets and liabilities measured at fair value on a recurring basis at December 31, 2019 and 2018 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 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 ​ $ — ​ $ 4,498 ​ $ — ​ $ 4,498 Obligations of states and political subdivisions ​ — ​ 442,992 ​ — ​ 442,992 Corporate and other bonds (1) ​ — ​ 263,070 ​ — ​ 263,070 Mortgage-backed securities ​ — ​ 1,231,806 ​ — ​ 1,231,806 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 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurements at December 31, 2018 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: ​ ​ ​ ​ ​ Obligations of states and political subdivisions ​ $ — ​ $ 468,491 ​ $ — ​ $ 468,491 Corporate and other bonds (1) ​ — ​ 167,696 ​ — ​ 167,696 Mortgage-backed securities ​ — ​ 1,129,865 ​ — ​ 1,129,865 Other securities ​ — ​ 8,769 ​ — ​ 8,769 Derivatives: ​ ​ ​ ​ Interest rate swap ​ — ​ 19,426 ​ — ​ 19,426 Fair value hedges ​ — ​ 1,872 ​ — ​ 1,872 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ LIABILITIES ​ ​ ​ ​ Derivatives: ​ ​ ​ ​ Interest rate swap ​ $ — ​ $ 19,426 ​ $ — ​ $ 19,426 Cash flow hedges ​ — ​ 4,786 ​ — ​ 4,786 Fair value hedges ​ — ​ 1,684 ​ — ​ 1,684 (1) Other bonds includes 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. The following describes the valuation techniques used by the Company to measure certain assets recorded at fair value on a nonrecurring basis in the financial statements. Impaired loans Loans are designated as impaired when, in the judgment of management based on current information and events, it is probable that all amounts due according to the contractual terms of the loan agreements will not be collected. The measurement of loss associated with impaired loans can be based on either the observable market price of the loan or the fair value of the collateral. Collateral dependent loans are reported at the fair value of the underlying collateral if repayment is solely from the underlying value of the collateral. Collateral may be in the form of real estate or business assets including equipment, inventory, and accounts receivable. The vast majority of the Company’s collateral is real estate. The value of real estate collateral is determined utilizing an income or market valuation approach based on an appraisal conducted by an independent, licensed appraiser using observable market data. When evaluating the fair value, management may discount the appraisal further if, based on their understanding of the market conditions, it is determined the collateral is further impaired below the appraised value (Level 3). For the years ended December 31, 2019 and 2018, the Level 3 weighted average adjustments related to impaired loans were 5.9% and 5.3%, respectively. The value of business equipment is based upon an outside appraisal, of one year or less, if deemed significant, or the net book value on the applicable business’s financial statements if not considered significant using observable market data. Likewise, values for inventory and accounts receivables collateral are based on financial statement balances or aging reports (Level 3). Collateral dependent impaired loans allocated to the ALL are measured at fair value on a nonrecurring basis. Any fair value adjustments are recorded in the period incurred as provision for loan losses on the Company’s Consolidated Statements of Income. ​ Foreclosed Properties & Former Bank Premises Foreclosed properties and former bank premises are evaluated for impairment at least quarterly by the Bank’s Special Asset Loan Committee and any necessary write downs to fair values are recorded as impairment and included as a component of noninterest expense. Foreclosed properties and former bank premises are carried at fair value less selling costs. Fair value is based upon independent market prices, appraised values of the collateral, or management’s estimation of the value of the collateral. When an appraised value is not available or management determines the fair value of the collateral is further impaired below the appraised value and there is no observable market price, the Company records the foreclosed asset as Level 3 valuation. For the years ended December 31, 2019 and 2018, the Level 3 weighted average adjustments related to foreclosed property were approximately 4.5% and 3.7%, respectively. For the years ended December 31, 2019 and 2018, there were no Level 3 weighted average adjustments related to bank premises. ​ Total valuation expenses related to foreclosed properties for the years ended December 31, 2019, 2018, and 2017 were $921,000, $1.3 million, and $1.6 million, respectively. Total valuation expenses related to former bank premises for the years ended December 31, 2019, 2018 and 2017 were $985,000, $0 and $339,000, respectively. The following tables summarize the Company’s financial assets that were measured at fair value on a nonrecurring basis at December 31, 2019 and 2018 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 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 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Impaired loans ​ $ — ​ $ — ​ $ 3,593 ​ $ 3,593 Foreclosed properties ​ — ​ — ​ 4,708 ​ 4,708 Former bank premises ​ — ​ — ​ 3,557 ​ 3,557 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurements at December 31, 2018 using ​ ​ ​ Significant ​ ​ ​ ​ ​ ​ Quoted Prices in ​ Other ​ Significant ​ ​ ​ ​ ​ Active Markets for ​ Observable ​ Unobservable ​ ​ ​ ​ ​ Identical Assets ​ Inputs ​ Inputs ​ ​ ​ ​ ​ Level 1 ​ Level 2 ​ Level 3 ​ Balance ASSETS ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Impaired loans ​ $ — ​ $ — ​ $ 3,734 ​ $ 3,734 Foreclosed properties ​ — ​ — ​ 6,722 ​ 6,722 Former bank premises ​ — ​ — ​ 2,090 ​ 2,090 ​ 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 IDC, which evaluates securities based on market data. IDC 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, 2019 and 2018. 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, 2019. Loans With the adoption of ASU No. 2016-01 in 2018, the fair value of loans at December 31, 2019 were estimated using an exit price, representing the amount that would be expected to be received if the Company sold the loans. Beginning in the first quarter of 2019, the fair value of performing loans were estimated by utilizing two data sources for the selection of discount rates: either the recent origination rates from the Company over a 12-month period or an index to use recent originations from the market over a three-month period. At December 31, 2018, the fair value of performing loans were estimated by discounting expected future cash flows using a yield curve that was constructed by adding a loan spread to a market yield curve. Loan spreads were based on spreads observed in the market for loans of similar type and structure. Fair value for impaired loans and their respective level within the fair value hierarchy are described in the previous disclosure 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, 2019 and 2018 are as follows (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 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 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurements at December 31, 2018 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 ​ $ 261,199 ​ $ 261,199 ​ $ — ​ $ — ​ $ 261,199 AFS securities ​ 1,774,821 ​ — ​ 1,774,821 ​ — ​ 1,774,821 HTM securities ​ 492,272 ​ — ​ 499,501 ​ — ​ 499,501 Restricted stock ​ 124,602 ​ — ​ 124,602 ​ — ​ 124,602 Net loans ​ 9,675,162 ​ — ​ — ​ 9,534,717 ​ 9,534,717 Derivatives: ​ ​ ​ ​ ​ Interest rate swap ​ 19,426 ​ — ​ 19,426 ​ — ​ 19,426 Fair value hedges ​ 1,872 ​ — ​ 1,872 ​ — ​ 1,872 Accrued interest receivable ​ 46,062 ​ — ​ 46,062 ​ — ​ 46,062 BOLI ​ 263,034 ​ — ​ 263,034 ​ — ​ 263,034 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ LIABILITIES ​ ​ ​ ​ ​ Deposits ​ $ 9,970,960 ​ $ — ​ $ 9,989,788 ​ $ — ​ $ 9,989,788 Borrowings ​ 1,756,278 ​ — ​ 1,742,038 ​ — ​ 1,742,038 Accrued interest payable ​ 5,284 ​ — ​ 5,284 ​ — ​ 5,284 Derivatives: ​ ​ ​ ​ ​ Interest rate swap ​ 19,426 ​ — ​ 19,426 ​ — ​ 19,426 Cash flow hedges ​ 4,786 ​ — ​ 4,786 ​ — ​ 4,786 Fair value hedges ​ 1,684 ​ — ​ 1,684 ​ — ​ 1,684 ​ 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, 2019
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 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 however, the Company is an agent, responsible for arranging for the provision of goods and services by another party. Noninterest income disaggregated by major source for the years ended December 31, 2019, 2018, and 2017 consisted of the following (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2019 2018 2017 Noninterest income: ​ ​ ​ Deposit Service Charges (1) ​ ​ ​ Overdraft fees ​ $ 24,092 ​ $ 21,052 ​ $ 15,788 Maintenance fees & other ​ 6,110 ​ 4,387 ​ 3,062 Other service charges and fees (1) ​ 6,423 ​ 5,603 ​ 4,593 Interchange fees (1) ​ 14,619 ​ 18,803 ​ 14,974 Fiduciary and asset management fees (1) ​ ​ ​ ​ Trust asset management fees ​ 9,141 ​ 5,536 ​ 5,128 Registered advisor management fees ​ 10,107 ​ 6,589 ​ 2,692 Brokerage management fees ​ 4,117 ​ 4,025 ​ 3,425 Mortgage banking income ​ 10,303 ​ — ​ — Gains (losses) on securities transactions ​ 7,675 ​ 383 ​ 800 Bank owned life insurance income ​ 8,311 ​ 7,198 ​ 6,144 Loan-related interest rate swap fees ​ 14,126 ​ 3,554 ​ 3,051 Gain on Shore Premier sale ​ — ​ 19,966 ​ — Other operating income (2) ​ 17,791 ​ 7,145 ​ 2,772 Total noninterest income (3) ​ $ 132,815 ​ $ 104,241 ​ $ 62,429 (1) Income within scope of Topic 606. (2) Includes income within the scope of Topic 606 of $4.0 million, $4.4 million and $2.3 million for the years ended December 31, 2019, 201 8, and 2017, respectively. The remaining balance is outside the scope of Topic 606. The December 31, 2019 remaining balance 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. (3) 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, 2019
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 2019, 2018, and 2017 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2019 2018 2017 401(k) Plan ​ $ 5,550 ​ $ 4,592 ​ $ 3,505 ESOP ​ 1,163 ​ 1,005 ​ 1,255 Cash ​ 780 ​ 1,509 ​ 1,461 Total ​ $ 7,493 ​ $ 7,106 ​ $ 6,221 ​ 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 $15.7 million at December 31, 2019 and $11.8 million at December 31, 2018. 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) restricted stock awards (“RSAs”), (iii) restricted stock units (“RSUs”), (iv) stock awards; (v) performance share units (“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. RSAs and PSUs typically have vesting schedules over three For the years ended December 31, 2019, 2018, and 2017, the Company recognized stock-based compensation expense (included in salaries and benefits expense) (dollars in thousands, except per share data) as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, ​ 2019 2018 2017 Stock-based compensation expense ​ $ 8,332 ​ $ 6,132 ​ $ 4,648 Reduction of income tax expense ​ 1,750 ​ 1,287 ​ 1,467 Per share compensation cost ​ $ 0.08 ​ $ 0.07 ​ $ 0.06 ​ Stock Options The following table summarizes the stock option activity during the year ended December 31, 2019: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted ​ ​ ​ ​ ​ ​ Weighted ​ Average ​ ​ ​ ​ ​ Stock ​ Average ​ Remaining ​ Aggregate ​ ​ Options ​ Exercise ​ Contractual ​ Intrinsic ​ ​ (shares) ​ Price ​ Life ​ Value Outstanding as of December 31, 2018 47,585 ​ $ 14.44 ​ Options assumed in the Access acquisition ​ 448,679 ​ ​ 33.45 ​ ​ ​ ​ ​ Granted — ​ — ​ Exercised (56,619) ​ 24.48 ​ Forfeited (9,447) ​ 31.94 ​ Expired (8,060) ​ 36.78 ​ Outstanding as of December 31, 2019 422,138 ​ 32.48 2.55 ​ $ 2,313,739 Exercisable as of December 31, 2019 368,146 ​ 32.57 2.33 ​ 2,006,915 ​ 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 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. During the year ended December 31, 2017, there were 63,476 stock options exercised with a total intrinsic value (the amount by which the stock price exceeded the exercise price) and fair value of approximately $1.2 million and $2.2 million, respectively. Cash received from the exercise of stock options for the year ended December 31, 2017 was approximately $1.0 million, and the tax benefit realized from tax deductions associated with options exercised during the year was approximately $370,000. The total intrinsic value of all stock options outstanding was $2.7 million as of December 31, 2017. 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, 2019: ​ ​ ​ ​ ​ ​ ​ ​ Weighted ​ ​ Number of ​ Average ​ ​ Shares of ​ Grant-Date Fair ​ ​ RSAs ​ Value Unvested as of December 31, 2018 375,414 ​ $ 32.41 Granted 273,718 ​ 35.06 Net settle for taxes (52,253) ​ 52.01 Vested (148,584) ​ 30.78 Forfeited (16,653) ​ 34.31 Unvested as of December 31, 2019 431,642 ​ 34.90 ​ ​ Performance Stock 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 2019, 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, 2018 150,047 ​ $ 31.67 Granted 85,543 ​ 33.66 Net settle for taxes (15,018) ​ 34.63 Vested (69,205) ​ 24.27 Forfeited (6,658) ​ 36.08 Unvested as of December 31, 2019 144,709 ​ 37.24 ​ During years ended December 31, 2019, 2018 and 2017 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: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2019 (5) 2018 (5) 2017 (5) Dividend yield (1) 2.57 % 2.25 % 2.15 % Expected life in years (2) 2.86 2.86 2.85 ​ Expected volatility (3) 24.04 % 23.47 % 23.35 % Risk-free interest rate (4) 2.48 % 2.38 % 1.40 % (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 and performance stock issued and outstanding as of December 31, 2019 that will be recognized in future periods is as follows (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Restricted Performance ​ ​ ​ ​ Stock ​ Stock ​ Total 2020 ​ $ 5,030 ​ $ 1,406 ​ $ 6,436 2021 ​ 3,299 ​ 887 ​ 4,186 2022 ​ 652 ​ — ​ 652 2023 ​ 100 ​ — ​ 100 Total ​ $ 9,081 ​ $ 2,293 ​ $ 11,374 ​ At December 31, 2019, there was $11.4 million of total unrecognized compensation cost related to nonvested stock-based compensation arrangements granted under the Plan. The cost is expected to be recognized through 2023.

INCOME TAXES

INCOME TAXES	12 Months Ended
	Dec. 31, 2019
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 2016. On December 22, 2017, the Tax Act was signed into law. The Company applied the guidance in SAB 118 when accounting for the enactment-date effects of the Tax Act in 2017 and throughout 2018. Among other things, the Tax Act permanently reduced the corporate tax rate to 21% from the prior maximum rate of 35%, effective for tax years including or commencing January 1, 2018. As a result of the reduction of the corporate tax rate to 21%, companies were required to revalue their deferred tax assets and liabilities as of the date of enactment, with resulting tax effects accounted for in the fourth quarter of 2017. During 2017, the Company recorded $6.1 million in additional tax expense based on the Company’s analysis of the impact of the Tax Act. As of December 31, 2018, the Company had to complete our accounting for all of the enactment-date income tax effects of the Tax Act. No additional adjustments related the Tax Act were recorded in 2018. Net deferred tax assets and liabilities consist of the following components as of December 31, 2019 and 2018 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ 2019 2018 Deferred tax assets: ​ ​ Loan losses ​ $ 18,938 ​ $ 19,369 Benefit plans ​ 3,507 ​ 3,925 Acquisition accounting ​ 16,021 ​ 11,788 Lease right-of-use asset ​ ​ 13,507 ​ ​ — Stock grants ​ 2,032 ​ 894 OREO ​ 3,295 ​ 2,515 Securities available for sale ​ 1,169 ​ 1,577 Net operating losses ​ 55,023 ​ 66,037 Nonaccrual loans ​ 3,243 ​ 3,990 Other ​ 4,227 ​ 4,618 Total deferred tax assets ​ $ 120,962 ​ $ 114,713 Deferred tax liabilities: ​ ​ Acquisition accounting ​ $ 19,815 ​ $ 13,053 Lease right-of-use liability ​ ​ 11,191 ​ ​ — Premises and equipment ​ 6,696 ​ 3,877 Securities available for sale ​ 10,069 ​ 25 Other ​ 511 ​ 583 Total deferred tax liabilities ​ 48,282 ​ 17,538 Net deferred tax asset ​ $ 72,680 ​ $ 97,175 ​ At December 31, 2019, the Company had federal net operating loss carryforwards of approximately $222.0 million, of which approximately $201.2 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 $283.6 million, of which approximately $233.2 million will begin to expire after 2026 The Bank is not subject to a state income tax in its primary place of business (Virginia). The Company’s other subsidiaries are subject to state income taxes and historically have generated losses for state income tax purposes. 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, 2019, 2018, and 2017 consists of the following (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2019 2018 2017 Current tax expense ​ $ 22,500 ​ $ 12,114 ​ $ 27,255 Deferred tax expense (1) ​ 15,057 ​ 17,902 ​ 5,535 Income tax expense ​ $ 37,557 ​ $ 30,016 ​ $ 32,790 (1) The deferred tax expense for the year ended December 31, 2017 includes the impact of the Tax Act. 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, 2019, 2018, and 2017, due to the following (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2019 2018 2017 Computed "expected" tax expense ​ $ 48,564 ​ $ 37,680 ​ $ 36,738 (Decrease) in taxes resulting from: ​ ​ ​ Tax-exempt interest income, net ​ (8,259) ​ (5,188) ​ (6,112) Valuation allowance adjustment ​ — ​ — ​ (2,982) Impact of the Tax Act ​ — ​ — ​ 6,105 State income tax benefit ​ ​ (1,078) ​ ​ (1,133) ​ ​ — Other, net ​ (1,670) ​ (1,343) ​ (959) Income tax expense ​ $ 37,557 ​ $ 30,016 ​ $ 32,790 ​ The effective tax rates were 16.2%, 16.7%, and 31.2% for years ended December 31, 2019, 2018, and 2017, respectively. Tax credits totaled approximately $2.9 million, $1.1 million, and $858,000 for the years ended December 31, 2019, 2018, and 2017, respectively. The change in the effective tax rates for 2019 and 2018 are primarily related to the impact of the Tax Act.

EARNINGS PER SHARE

EARNINGS PER SHARE	12 Months Ended
	Dec. 31, 2019
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 earnings per share 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): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2019 2018 2017 Net Income: ​ ​ ​ Income from continuing operations ​ $ 193,698 ​ $ 149,413 ​ $ 72,176 Income (loss) from discontinued operations ​ (170) ​ (3,165) ​ 747 Net income available to common shareholders ​ $ 193,528 ​ $ 146,248 ​ $ 72,923 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted average shares outstanding, basic ​ 80,201 ​ 65,859 ​ 43,699 Dilutive effect of stock awards and warrants ​ 63 ​ 50 ​ 81 Weighted average shares outstanding, diluted ​ 80,264 ​ 65,909 ​ 43,780 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Basic EPS: ​ ​ ​ EPS from continuing operations ​ $ 2.41 ​ $ 2.27 ​ $ 1.65 EPS from discontinued operations ​ ​ — ​ ​ (0.05) ​ ​ 0.02 EPS available to common shareholders ​ $ 2.41 ​ $ 2.22 ​ $ 1.67 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Diluted EPS: ​ ​ ​ EPS from continuing operations ​ $ 2.41 ​ $ 2.27 ​ $ 1.65 EPS from discontinued operations ​ ​ — ​ ​ (0.05) ​ ​ 0.02 EPS available to common shareholders ​ $ 2.41 ​ $ 2.22 ​ $ 1.67 ​

SEGMENT REPORTING & DISCONTINUE

SEGMENT REPORTING & DISCONTINUED OPERATIONS	12 Months Ended
	Dec. 31, 2019
Segment Reporting [Abstract]
SEGMENT REPORTING & DISCONTINUED OPERATIONS	19. SEGMENT REPORTING & DISCONTINUED OPERATIONS 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 this 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, 2019, the Company’s Consolidated Balance Sheets included assets and liabilities from discontinued operations of $668,000 and $640,000, respectively. As of December 31, 2018, the Company’s Consolidated Balance Sheets included assets and liabilities from discontinued operations of $1.5 million and $1.7 million, 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, 2018 and 2017, respectively (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2019 2018 2017 Net interest income ​ $ — ​ $ 850 ​ $ 1,150 Provision for credit losses ​ — ​ (185) ​ (46) Net interest income after provision for credit losses ​ — ​ 1,035 ​ 1,196 Noninterest income ​ 1 ​ 3,882 ​ 9,245 Noninterest expenses ​ 231 ​ 9,197 ​ 9,097 Income before income taxes ​ (230) ​ (4,280) ​ 1,344 Income tax expense (benefit) ​ (60) ​ (1,115) ​ 597 Net income (loss) on discontinued operations ​ $ (170) ​ $ (3,165) ​ $ 747 ​

RELATED PARTY TRANSACTIONS

RELATED PARTY TRANSACTIONS	12 Months Ended
	Dec. 31, 2019
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 issued on the same terms as those prevailing at the time for comparable loans to unrelated persons and do not involve more than the normal risk of collectability.

PARENT COMPANY FINANCIAL INFORM

PARENT COMPANY FINANCIAL INFORMATION	12 Months Ended
	Dec. 31, 2019
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, 2019, the aggregate amount of unrestricted funds that could be transferred from the Bank to the Parent Company without prior regulatory approval totaled approximately $383.7 million, or 15.27%, of the consolidated net assets. Financial information for the Parent Company is as follows: PARENT COMPANY CONDENSED BALANCE SHEETS AS OF DECEMBER 31, 2019 and 2018 (Dollars in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ 2019 2018 ASSETS ​ ​ Cash ​ $ 5,283 ​ $ 3,681 Premises and equipment, net ​ 10,568 ​ 10,637 Other assets ​ 27,438 ​ 13,386 Investment in subsidiaries ​ 2,786,842 ​ 2,202,530 Total assets ​ $ 2,830,131 ​ $ 2,230,234 LIABILITIES AND STOCKHOLDERS' EQUITY ​ ​ Short-term borrowings ​ — ​ 5,000 Long-term borrowings ​ 157,155 ​ 157,057 Trust preferred capital notes ​ 140,237 ​ 134,342 Other liabilities ​ 19,637 ​ 9,254 Total liabilities ​ 317,029 ​ 305,653 Total stockholders' equity ​ 2,513,102 ​ 1,924,581 Total liabilities and stockholders' equity ​ $ 2,830,131 ​ $ 2,230,234 ​ ​ PARENT COMPANY CONDENSED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME YEARS ENDED DECEMBER 31, 2019, 2018, and 2017 (Dollars in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2019 2018 ​ 2017 Income: ​ ​ ​ Interest and dividend income ​ $ 3 ​ $ — ​ $ 3 Dividends received from subsidiaries ​ 160,033 ​ 50,750 ​ 33,350 Other operating income ​ 1,484 ​ 2,719 ​ 1,308 Total income ​ 161,520 ​ 53,469 ​ 34,661 Expenses: ​ ​ ​ Interest expense ​ 15,935 ​ 15,253 ​ 11,423 Other operating expenses ​ 11,434 ​ 13,782 ​ 7,130 Total expenses ​ 27,369 ​ 29,035 ​ 18,553 Income before income taxes and equity in undistributed net income from subsidiaries ​ 134,151 ​ 24,434 ​ 16,108 Income tax benefit ​ (6,499) ​ (6,176) ​ (9,169) Equity in undistributed net income from subsidiaries ​ 52,878 ​ 115,638 ​ 47,646 Net income ​ $ 193,528 ​ $ 146,248 ​ $ 72,923 Comprehensive income ​ $ 239,376 ​ $ 136,905 ​ $ 75,848 ​ ​ PARENT COMPANY CONDENSED STATEMENTS OF CASH FLOWS YEARS ENDED DECEMBER 31, 2019, 2018, and 2017 (Dollars in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2019 2018 2017 Operating activities: ​ ​ ​ Net income ​ $ 193,528 ​ $ 146,248 ​ $ 72,923 Adjustments to reconcile net income to net cash provided by operating activities: ​ ​ ​ Equity in undistributed net income of subsidiaries ​ (52,878) ​ (115,638) ​ (47,646) Depreciation of premises and equipment ​ 424 ​ 424 ​ 439 Acquisition accounting amortization, net ​ 662 ​ 636 ​ 260 Gain on sale of investment ​ — ​ (1,416) ​ — Issuance of common stock for services ​ 910 ​ 914 ​ 724 Net (increase) decrease in other assets ​ (3,256) ​ (584) ​ (4,167) Net increase in other liabilities ​ 4,964 ​ (4,159) ​ 5,283 Net cash and cash equivalents provided by (used in) operating activities ​ 144,354 ​ 26,425 ​ 27,816 Investing activities: ​ ​ ​ Net increase in premises and equipment ​ (355) ​ — ​ (35) Proceeds from sale of investment ​ — ​ 3,761 ​ — Proceeds from (payments for) equity method investment ​ — ​ — ​ 72 Cash paid in acquisitions ​ ​ (12) ​ ​ — ​ ​ — Cash received in acquisitions ​ 21,553 ​ 25,976 ​ — Net cash and cash equivalents provided by (used in) investing activities ​ 21,186 ​ 29,737 ​ 37 Financing activities: ​ ​ ​ Net increase (decrease) in short-term borrowings ​ (5,000) ​ 5,000 ​ — Cash dividends paid - common stock ​ (78,345) ​ (58,001) ​ (35,393) Cancellation of warrants ​ — ​ (1,530) ​ — Issuance (repurchase) of common stock ​ (78,292) ​ 2,347 ​ 1,037 Vesting of restricted stock, net of shares held for taxes ​ (2,301) ​ (2,908) ​ (1,567) Net cash and cash equivalents provided by (used in) financing activities ​ (163,938) ​ (55,092) ​ (35,923) Increase (decrease) in cash and cash equivalents ​ 1,602 ​ 1,070 ​ (8,070) Cash and cash equivalents at beginning of the period ​ 3,681 ​ 2,611 ​ 10,681 Cash and cash equivalents at end of the period ​ $ 5,283 ​ $ 3,681 ​ $ 2,611 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 (Notes)

SUBSEQUENT EVENTS (Notes)	12 Months Ended
	Dec. 31, 2019
Subsequent Events [Abstract]
SUBSEQUENT EVENTS	22. SUBSEQUENT EVENTS The Company’s management has evaluated subsequent events through February 25, 2020, the date the financial statements were available to be issued.

SUMMARY OF SIGNIFICANT ACCOUN_2

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	12 Months Ended
	Dec. 31, 2019
Accounting Policies [Abstract]
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.
Principles of Consolidation	Principles of Consolidation Transfers and Servicing
Use of Estimates	Use of Estimates
Variable Interest Entities	Variable Interest Entities
Business Combinations and Divestitures	Business Combinations and Divestitures - Business Combinations 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
Investment Securities	Investment Securities Available for Sale Held to Maturity Equity Investments Restricted Stock, at cost The Company regularly evaluates all securities whose values have declined below amortized cost to assess whether the decline in fair value represents an OTTI. Declines in the fair value of held to maturity and AFS securities below their cost that are deemed to be other than temporary are reflected in earnings as realized losses. In estimating OTTI losses, an impairment is other-than-temporary if any of the following conditions exist: the entity intends to sell the security; it is more likely than not that the entity will be required to sell the security before recovery of its amortized cost basis; or, the entity does not expect to recover the security’s entire amortized cost basis (even if the entity does not intend to sell). If a credit loss exists, but an entity does not intend to sell the impaired debt security and is not more likely than not to be required to sell before recovery, the impairment is other-than-temporary and should be separated into a credit portion to be recognized in earnings and the remaining amount relating to all other factors recognized as other comprehensive loss. Gains and losses on the sale of securities are recorded on the trade date and are determined using the specific identification method. Purchased premiums and discounts are recognized in interest income using the interest method over the terms of the securities.
Loans Held for Sale	Loans Held for Sale 14 “Fair Value Measurements.” In addition, the Company requires a firm purchase commitment from an investor before a loan can be closed, thus limiting interest rate risk. Net unrealized losses, if any, are recognized through a valuation allowance by charges to income. The change in fair value of loans held for sale is recorded as a component of “Mortgage banking income” within the Company’s Consolidated Statements of Income. The Company records loans held for sale per the aforementioned policy as of the acquisition date of Access through the year 2019. During 2018, the Company did not have any loans held for sale, due to the wind down of UMG, as noted in Note 19 “Segment Reporting & Discontinued Operations"; therefore, any activity prior to this point would have been reported in discontinued operations.
Loans	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 ALL, 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 segments: 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 requirements for multifamily properties are stricter than for other non-owner-occupied property types. The Company manages this risk by avoiding concentrations with any particular customer. Commercial & Industrial Residential 1-4 Family - Commercial Residential 1-4 Family - Consumer Residential 1-4 Family - Revolving Auto Consumer and all other Also included in this category are loans purchased through various third-party lending programs. These portfolios include consumer loans and carry risks associated with the borrower, changes in the economic environment, and the vendors themselves. The Company manages these risks through policies that require minimum credit scores and other underwriting requirements, robust analysis of actual performance versus expected performance, as well as ensuring compliance with the Company’s vendor management program. 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. The process for charge-offs of impaired collateral dependent loans is discussed in detail within the “Allowance for Loan Losses” section of this Note. 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
Impaired Loans	Impaired Loans A loan is considered impaired when, based on current information and events, it is probable that the Company will be unable to collect the scheduled payments of principal 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 experience insignificant payment delays and payment shortfalls generally are not classified as impaired. Management determines 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 is 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 is the same for all segments within the commercial loan segment. For the consumer loan segment, large groups of smaller balance homogeneous loans are collectively evaluated for impairment. This evaluation subjects 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 applies payments received on impaired loans to principal and interest based on the contractual terms until they are placed on nonaccrual status. All payments received are then applied to reduce the principal balance and recognition of interest income is terminated as previously discussed.
Acquired Loans	Acquired Loans 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 acquired impaired (or PCI) or acquired performing. Acquired performing loans are accounted for under ASC 310-20, Receivables – Nonrefundable Fees and Other Costs Acquired impaired loans reflect credit quality deterioration since origination, as it is probable at acquisition that the Company will not be able to collect all contractually required payments. These PCI loans are accounted for under ASC 310-30, Receivables – Loans and Debt Securities Acquired with Deteriorated Credit Quality Quarterly, management performs a recast of PCI loans based on updated future expected cash flows, which are 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 is considered to be the accretable yield and is recognized as interest income over the estimated life of the loan or pool using the effective yield method. The accretable yield may change due to changes in the timing and amounts of expected cash flows; these changes are disclosed in Note 4 “Loans and Allowance for Loan Losses.” The excess of the undiscounted contractual balances due over the cash flows expected to be collected is considered to be the nonaccretable difference, which represents 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 are 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 are and will continue to be subject to the Company’s internal and external credit review and monitoring. If further credit deterioration is experienced, such deterioration will be measured and the provision for loan losses will be increased. A loan will be removed from a pool (at its carrying value) only if the loan is sold, foreclosed, or assets are received in full satisfaction of the loan.
Allowance for Loan Losses	Allowance for Loan Losses The provision for loan losses charged to operations is an amount sufficient to bring the ALL to an estimated balance that management considers adequate to absorb probable losses inherent in the portfolio. Loans are charged against the allowance when management believes the collectability of the principal is unlikely, while recoveries of amounts previously charged-off are credited to the ALL. Management’s determination of the adequacy of the ALL 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, and other risk factors. While management uses available information to recognize losses on loans, future additions to the allowance may be necessary based on changes in economic conditions, particularly those affecting real estate values. Management believes that the ALL is adequate. 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 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. The Company has various committees that review and ensure that the ALL methodology is in accordance with GAAP and loss factors used appropriately reflect the risk characteristics of the loan portfolio. Specifically, the Company’s Allowance Committee oversees the Company’s Allowance for Loan Losses (under the Incurred Loss Model framework) and will also oversee the Allowance for Credit Losses (under the CECL framework) processes. The Allowance Committee is the authoritative committee for all quarterly qualitative factors, ALL estimates and changes to the Company’s ALL methodology. The Company’s ALL consists of specific, general, and qualitative components. Specific Reserve Component The specific reserve component relates to impaired loans. Upon being identified as impaired, for loans not considered to be collateral-dependent, an ALL is established when the discounted cash flows of the impaired loan are lower than the carrying value of that loan. The impairment of significant collateral-dependent loans is measured based on the fair value of the underlying collateral, less selling costs, compared to the carrying value of the loan. If the Company determines that the value of an impaired 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 represents a confirmed loss. Typically, a loss is confirmed when the Company is moving towards 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 updated every 12 months for all impaired loans. The Company’s impairment analysis documents the date of the appraisal used in the analysis. Adjustments to real estate appraised values are only permitted to be made by the REVG. The impairment 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. Impairment analyses are updated, reviewed, and approved on a quarterly basis at or near the end of each reporting period. General Reserve Component The general reserve component covers non-impaired loans and is 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 is a function of the net charge-off historical loss experience to the average loan balance of the portfolio averaged during a period that management has determined to be adequately reflective of the losses inherent in the loan portfolio. The Company has implemented a rolling 24-quarter look back period, which is re-evaluated on a periodic basis to ensure the reasonableness of the period being used. The following table shows the types of qualitative factors management considers: ​ ​ ​ ​ ​ QUALITATIVE FACTORS Portfolio National / International Local Experience and ability of lending team ​ Interest rates ​ Gross state product Pace of loan growth ​ Inflation ​ Unemployment rate Footprint and expansion ​ Unemployment ​ Home prices Execution of loan risk rating process ​ Level of economic activity ​ CRE prices Degree of credit oversight ​ Political and trade uncertainty ​ ​ Underwriting standards ​ Asset prices ​ ​ Delinquency levels in portfolio ​ ​ ​ ​ Charge-off trends in portfolio ​ ​ ​ ​ Credit concentrations / nature and volume of the portfolio ​ ​ ​ ​
Troubled Debt Restructurings	Troubled Debt Restructurings - The Company strives to identify borrowers in financial difficulty early and work with them to modify their loan to more affordable terms as early as possible. These modified terms may include extension of terms that are considered to be below market, conversion to interest only, and other actions intended to minimize the economic loss to avoid foreclosure or repossession of the collateral, rate reductions, and principal or interest forgiveness. Restructured loans for which there was no rate concession, and therefore make at market rate of interest, may subsequently be eligible to be removed from reportable TDR status in periods subsequent to the restructuring depending on the performance of the loan. In cases where borrowers are granted new terms that provide for a reduction of either interest or principal, management measures any impairment on the restructuring as noted above for impaired loans. 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 certain restrictive circumstances. The removal of TDR designations must be approved by the Company’s Special Asset Loan Committee. Loans removed from reportable TDR status continue to be evaluated for impairment. The significant majority of these loans have been subject to new credit decisions due to the improvement in the expected future cash flows, the financial condition of the borrower, and other factors considered during the re-underwriting.
Premises and Equipment	Premises and Equipment -
Goodwill and Intangible Assets	Goodwill and Intangible Assets - Goodwill resulting from business combinations prior to January 1, 2009 represents the excess of the purchase price over the fair value of the net assets of businesses acquired. Goodwill resulting from business combinations after January 1, 2009 is generally determined as the excess of the fair value of the consideration transferred, plus the fair value of any noncontrolling interests in the acquiree over the fair value of the net assets acquired and liabilities assumed as of the acquisition date. Goodwill and intangible assets acquired in a purchase business combination and determined to have an indefinite useful life are not amortized, but tested for impairment at least annually or more frequently if events and circumstances exists that indicate that a goodwill impairment test should be performed. The Company has selected April 30th as the date to perform the annual impairment test. 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. Goodwill is the only intangible asset with an indefinite life included on the Company’s Consolidated Balance Sheets. 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 performed its annual impairment testing on April 30, 2019 and determined that there was no impairment to its goodwill. Management performed a review through December 31, 2019 and concluded that no impairment existed as of the balance sheet date.
Foreclosed Properties	Foreclosed Properties
Transfers of Financial Assets	Transfers of Financial Assets transferred assets through an agreement to repurchase them before their maturity or the ability to unilaterally cause the holder to return specific assets.
Bank Owned Life Insurance	Bank Owned Life Insurance
Derivatives	Derivatives 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”). The Company commits to deliver the loan if settlement occurs ("best efforts") or commits to deliver the locked loan in a binding ("mandatory") delivery program with an investor. Certain loans under interest rate lock commitments are covered under forward sales contracts of MBS. Rate lock commitments on mortgage loans that are intended to be sold in the secondary market and commitments to deliver loans to investors are considered to be derivatives. The Company uses these derivatives as part of an overall strategy to manage market risk primarily due to fluctuations in interest rates, and to capture improved margins resulting from the mandatory delivery of loans. As of December 31, 2018, there were no mortgage banking derivatives due to the wind down of Union Mortgage Group. Mortgage banking derivatives as of December 31, 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 - investments in these qualified affordable housing projects for the years ended December 31, 2019 and 2018 were $29.6 million and $10.8 million, respectively. At December 31, 2019 and 2018, the Company’s recorded liability totaled $12.0 million and $9.9 million, respectively, for the related unfunded commitments, which are expected to be paid from 2020 to 2036.
Loan Fees	Loan Fees
Stock Compensation Plan	Stock Compensation Plan Compensation - Stock Compensation The Company did not issue stock options in 2018 or 2019; 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 2019 to determine the valuation of the stock options. The valuation employs the following assumptions: • Dividend yield - calculated as the ratio of forecasted dividend yield per share of common stock; • Expected life (term of the option) - based on the contractual life and vesting schedule for the respective option; • Expected volatility - based on the monthly historical volatility of the Company’s stock price over the expected life of the options; and • Risk-free interest rate - based upon the U. S. Department of the Treasury (the “Treasury”) bill yield curve, for periods within the contractual life of the option, in effect at the time of grant. ​ The fair value of PSUs granted in 2019 and 2018 is 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 in 2019 and 2018. ​ The fair value of restricted stock is 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, 2019, 2018, or 2017 related to tax positions taken. As of December 31, 2019 and 2018, 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. On December 22, 2017, the Tax Act was signed into law. Refer to Note 17 “Income Taxes” for additional information on the impact of the Tax Act.
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 Fair Value Measurements and Disclosures 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
Adoption of New Accounting Standards and Recent Accounting Pronouncements	Adoption of New Accounting Standards - "Leases (Topic 842)." 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 In August 2018, the FASB issued ASU No. 2018-15, "Intangibles—Goodwill and Other—Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract." This ASU amends the Intangibles—Goodwill and Other Topic of the Accounting Standards Codification to align the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. This ASU is effective for fiscal years beginning after December 15, 2019; however, early adoption is permitted. The Company adopted this standard in the first quarter of 2019 using the prospective approach. The adoption of ASU 2018-15 did not have a material impact on the Company’s consolidated financial statements.

SUMMARY OF SIGNIFICANT ACCOUN_3

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)	12 Months Ended
	Dec. 31, 2019
Accounting Policies [Abstract]
Schedule of Qualitative Factors	The following table shows the types of qualitative factors management considers: ​ ​ ​ ​ ​ QUALITATIVE FACTORS Portfolio National / International Local Experience and ability of lending team ​ Interest rates ​ Gross state product Pace of loan growth ​ Inflation ​ Unemployment rate Footprint and expansion ​ Unemployment ​ Home prices Execution of loan risk rating process ​ Level of economic activity ​ CRE prices Degree of credit oversight ​ Political and trade uncertainty ​ ​ Underwriting standards ​ Asset prices ​ ​ Delinquency levels in portfolio ​ ​ ​ ​ Charge-off trends in portfolio ​ ​ ​ ​ Credit concentrations / nature and volume of the portfolio ​ ​ ​ ​

ACQUISITIONS (Tables)

ACQUISITIONS (Tables)	12 Months Ended
	Dec. 31, 2019
Business Combinations [Abstract]
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed	The following table provides a preliminary assessment of the consideration transferred, assets acquired, and liabilities assumed as of the date of the acquisition (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ Purchase Price: ​ ​ Fair value of shares of the Company's common stock issued ​ ​ $ 499,974 Cash paid for fractional shares ​ ​ 12 Total purchase price ​ ​ $ 499,986 ​ ​ ​ ​ ​ ​ ​ Fair value of assets acquired: ​ ​ Cash and cash equivalents ​ $ 46,164 ​ Investments ​ 464,742 ​ Loans ​ 2,173,060 ​ Premises and equipment ​ 24,198 ​ Core deposit intangibles ​ 40,860 ​ Other assets ​ 100,649 ​ Total assets ​ $ 2,849,673 ​ ​ ​ ​ ​ ​ ​ ​ Fair value of liabilities assumed: ​ ​ Deposits ​ $ 2,227,073 ​ Short-term borrowings ​ 220,685 ​ Long-term borrowings ​ 70,535 ​ Other liabilities ​ 39,770 ​ Total liabilities ​ $ 2,558,063 ​ ​ ​ ​ ​ ​ ​ ​ Net assets acquired ​ ​ $ 291,610 Preliminary goodwill ​ ​ $ 208,376
Outstanding Principal Balance and Carrying Amount of Acquired Impaired Loans	The following table presents the acquired impaired loans receivable at the acquisition date (dollars in thousands): ​ ​ ​ ​ ​ Contractually required principal and interest payments $ 44,429 Nonaccretable difference ​ (6,062) Cash flows expected to be collected ​ 38,367 Accretable difference ​ (5,060) Fair value of loans acquired with a deterioration of credit quality ​ $ 33,307
Business Acquisition, Pro Forma Information	The Company expects to achieve further operating cost savings and other business synergies, including branch closures, as a result of the acquisition which are not reflected in the pro forma amounts below (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ For the years ended ​ ​ December 31, 2019 2018 2017 Total revenues ​ $ 681,306 ​ $ 666,921 ​ $ 468,840 Net income ​ $ 217,075 ​ $ 185,698 ​ $ 91,270 Earnings per share ​ $ 2.53 ​ $ 2.28 ​ $ 1.59
Schedule of Effect of Amortization and Accretion Related to Acquisition	The net effect of the amortization and accretion of premiums and discounts associated with the Company’s acquisition accounting adjustments, which includes previous acquisitions in addition to Access, had the following impact on the Consolidated Statements of Income during the years ended December 31, 2019, 2018, and 2017 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ For the years ended ​ ​ December 31, ​ 2019 2018 2017 Loans (1) ​ $ 24,846 ​ $ 17,145 ​ $ 6,784 Buildings (2) ​ 50 ​ 228 ​ — Core deposit intangible (3) ​ (16,755) ​ (11,464) ​ (5,603) Other amortizable intangibles (3) ​ (1,766) ​ (1,375) ​ (485) Borrowings (4) ​ (360) ​ (506) ​ 170 Time deposits (5) ​ 833 ​ 2,553 ​ — Leases (2) ​ 1,051 ​ 130 ​ — Net impact to income before taxes ​ $ 7,899 ​ $ 6,711 ​ $ 866 ​ (1) Loan acquisition-related fair value adjustments accretion is included in "Interest and fees on loans" in the "Interest and dividend income" section of the Company’s Consolidated Statements of Income. (2) Building and lease acquisition-related fair value adjustments amortization is included in "Occupancy expenses" in the "Noninterest expense" section of the Company’s Consolidated Statements of Income. (3) Core deposit and other intangible premium amortization is included in "Amortization of intangible assets" in the "Noninterest expense" section of the Company’s Consolidated Statements of Income. (4) Borrowings acquisition-related fair value adjustments (amortization) accretion is included in "Interest on long-term borrowings" in the "Interest Expense" section of the Company’s Consolidated Statements of Income. (5) Certificate of deposit acquisition-related fair value adjustments accretion is included in "Interest on deposits" in the "Interest expense" section of the Company’s Consolidated Statements of Income.

SECURITIES (Tables)

SECURITIES (Tables)	12 Months Ended
	Dec. 31, 2019
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, 2019, 2018, and 2017 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2019 2018 2017 Realized gains (losses): ​ ​ ​ ​ ​ ​ ​ ​ ​ Gross realized gains $ 9,530 $ 4,221 $ 1,170 Gross realized losses ​ (1,855) ​ (3,838) ​ (370) Net realized gains $ 7,675 $ 383 $ 800 Proceeds from sales of securities $ 514,070 $ 515,764 $ 139,046
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 securities AFS as of December 31, 2019 and 2018 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 ​ $ 4,487 ​ $ 11 ​ $ — ​ $ 4,498 Obligations of states and political subdivisions ​ 417,397 ​ 25,624 ​ (29) ​ 442,992 Corporate and other bonds (1) ​ 259,213 ​ 4,403 ​ (546) ​ 263,070 Mortgage-backed securities ​ 1,209,251 ​ 23,880 ​ (1,325) ​ 1,231,806 Other securities ​ 3,079 ​ — ​ — ​ 3,079 Total AFS securities ​ $ 1,893,427 ​ $ 53,918 ​ $ (1,900) ​ $ 1,945,445 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2018 ​ ​ ​ ​ Obligations of states and political subdivisions ​ $ 466,588 ​ $ 3,844 ​ $ (1,941) ​ $ 468,491 Corporate and other bonds (1) ​ 167,561 ​ 1,118 ​ (983) ​ 167,696 Mortgage-backed securities ​ 1,138,034 ​ 4,452 ​ (12,621) ​ 1,129,865 Other securities ​ 8,769 ​ — ​ — ​ 8,769 Total AFS securities ​ $ 1,780,952 ​ $ 9,414 ​ $ (15,545) ​ $ 1,774,821 (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 (dollars in thousands) of the Company’s AFS securities with unrealized losses that are not deemed to be other-than-temporarily impaired as of December 31, 2019 and 2018. These are aggregated by investment category and length of time that the individual securities have been in a continuous unrealized loss position. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Less than 12 months ​ More than 12 months ​ Total ​ Fair Unrealized Fair Unrealized Fair Unrealized ​ ​ Value ​ Losses ​ Value ​ Losses ​ Value ​ Losses December 31, 2019 ​ ​ ​ ​ ​ ​ Obligations of states and political subdivisions ​ $ 4,526 ​ $ (29) ​ $ — ​ $ — ​ $ 4,526 ​ $ (29) Corporate and other bonds (1) ​ 44,567 ​ (255) ​ 19,902 ​ (291) ​ 64,469 ​ (546) Mortgage-backed securities ​ 149,255 ​ (920) ​ 55,133 ​ (405) ​ 204,388 ​ (1,325) Total AFS securities ​ $ 198,348 ​ $ (1,204) ​ $ 75,035 ​ $ (696) ​ $ 273,383 ​ $ (1,900) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2018 ​ ​ ​ ​ ​ ​ Obligations of states and political subdivisions ​ $ 133,513 ​ $ (1,566) ​ $ 10,145 ​ $ (375) ​ $ 143,658 ​ $ (1,941) Corporate and other bonds (1) ​ 35,478 ​ (315) ​ 33,888 ​ (668) ​ 69,366 ​ (983) Mortgage-backed securities ​ 306,038 ​ (3,480) ​ 341,400 ​ (9,141) ​ 647,438 ​ (12,621) Total AFS securities ​ $ 475,029 ​ $ (5,361) ​ $ 385,433 ​ $ (10,184) ​ $ 860,462 ​ $ (15,545) ​ (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, 2019 and 2018, 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, 2019 December 31, 2018 ​ Amortized Estimated Amortized Estimated ​ ​ Cost ​ Fair Value ​ Cost ​ Fair Value Due in one year or less ​ $ 35,046 ​ $ 35,197 ​ $ 22,653 ​ $ 22,789 Due after one year through five years ​ 164,605 ​ 166,873 ​ 191,003 ​ 188,999 Due after five years through ten years ​ 249,712 ​ 254,790 ​ 218,211 ​ 217,304 Due after ten years ​ 1,444,064 ​ 1,488,585 ​ 1,349,085 ​ 1,345,729 Total AFS securities ​ $ 1,893,427 ​ $ 1,945,445 ​ $ 1,780,952 ​ $ 1,774,821
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, 2019 and 2018, 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, 2019 ​ December 31, 2018 ​ Carrying Estimated Carrying Estimated ​ ​ Value ​ Fair Value ​ Value ​ Fair Value Due in one year or less ​ $ 502 ​ $ 504 ​ $ — ​ $ — Due after one year through five years ​ 10,258 ​ 10,539 ​ 3,893 ​ 3,900 Due after five years through ten years ​ 1,768 ​ 1,800 ​ 3,480 ​ 3,507 Due after ten years ​ 542,616 ​ 590,660 ​ 484,899 ​ 492,094 Total HTM securities ​ $ 555,144 ​ $ 603,503 ​ $ 492,272 ​ $ 499,501
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 securities held to maturity as of December 31, 2019 and 2018 are summarized as follows (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Carrying ​ Gross Unrealized ​ Estimated ​ Value Gains (Losses) Fair Value December 31, 2019 ​ ​ ​ ​ Obligations of states and political subdivisions ​ $ 545,148 ​ $ 48,274 ​ $ — ​ $ 593,422 Mortgage-backed securities ​ 9,996 ​ 85 ​ — ​ 10,081 Total held-to-maturity securities ​ $ 555,144 ​ $ 48,359 ​ $ — ​ $ 603,503 December 31, 2018 ​ ​ ​ ​ Obligations of states and political subdivisions ​ $ 492,272 ​ $ 7,375 ​ $ (146) ​ $ 499,501
Gross Unrealized Losses and Fair Value of Securities	The following table shows the gross unrealized losses and fair value (dollars in thousands) of the Company’s held to maturity securities with unrealized losses that are not deemed to be other-than-temporarily impaired as of December 31, 2019 and 2018. These are aggregated by investment category and length of time that the individual securities have been in a continuous unrealized loss position. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Less than 12 months ​ More than 12 months ​ Total ​ Fair Unrealized Fair Unrealized Fair Unrealized ​ ​ Value ​ Losses ​ Value ​ Losses ​ Value ​ Losses December 31, 2019 ​ ​ ​ ​ ​ ​ Obligations of states and political subdivisions ​ $ — ​ $ — ​ $ — ​ $ — ​ $ — ​ $ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2018 ​ ​ ​ ​ ​ ​ Obligations of states and political subdivisions ​ $ 43,206 ​ $ (146) ​ $ — ​ $ — ​ $ 43,206 ​ $ (146)

LOANS AND ALLOWANCE FOR LOAN _2

LOANS AND ALLOWANCE FOR LOAN LOSSES (Tables)	12 Months Ended
	Dec. 31, 2019
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, 2019 and 2018 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2019 2018 Construction and Land Development ​ $ 1,250,924 ​ $ 1,194,821 Commercial Real Estate - Owner Occupied ​ 2,041,243 ​ 1,337,345 Commercial Real Estate - Non-Owner Occupied ​ 3,286,098 ​ 2,467,410 Multifamily Real Estate ​ 633,743 ​ 548,231 Commercial & Industrial ​ 2,114,033 ​ 1,317,135 Residential 1-4 Family - Commercial ​ 724,337 ​ 640,419 Residential 1-4 Family - Consumer ​ 890,503 ​ 673,909 Residential 1-4 Family - Revolving ​ 659,504 ​ 613,383 Auto ​ 350,419 ​ 301,943 Consumer ​ 372,853 ​ 379,694 Other Commercial ​ 287,279 ​ 241,917 Total loans held for investment, net ​ $ 12,610,936 ​ $ 9,716,207 ​
Summary of Aging of the Loan Portfolio by Class	The following table shows the aging of the Company’s loan portfolio, by segment, 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 ​ ​ ​ The following table shows the aging of the Company’s loan portfolio, by segment, at December 31, 2018 (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 ​ $ 759 ​ $ 6 ​ $ 180 ​ $ 8,654 ​ $ 8,018 ​ $ 1,177,204 ​ $ 1,194,821 Commercial Real Estate - Owner Occupied ​ 8,755 ​ 1,142 ​ 3,193 ​ 25,644 ​ 3,636 ​ 1,294,975 ​ 1,337,345 Commercial Real Estate - Non-Owner Occupied ​ 338 ​ 41 ​ — ​ 17,335 ​ 1,789 ​ 2,447,907 ​ 2,467,410 Multifamily Real Estate ​ — ​ 146 ​ — ​ 88 ​ — ​ 547,997 ​ 548,231 Commercial & Industrial ​ 3,353 ​ 389 ​ 132 ​ 2,156 ​ 1,524 ​ 1,309,581 ​ 1,317,135 Residential 1-4 Family - Commercial ​ 6,619 ​ 1,577 ​ 1,409 ​ 13,601 ​ 2,481 ​ 614,732 ​ 640,419 Residential 1-4 Family - Consumer ​ 12,049 ​ 5,143 ​ 2,437 ​ 16,872 ​ 7,276 ​ 630,132 ​ 673,909 Residential 1-4 Family - Revolving ​ 4,611 ​ 1,644 ​ 440 ​ 5,115 ​ 1,518 ​ 600,055 ​ 613,383 Auto ​ 3,320 ​ 403 ​ 195 ​ 7 ​ 576 ​ 297,442 ​ 301,943 Consumer ​ 1,504 ​ 1,096 ​ 870 ​ 32 ​ 135 ​ 376,057 ​ 379,694 Other Commercial ​ ​ 126 ​ ​ — ​ ​ — ​ ​ 717 ​ ​ — ​ ​ 241,074 ​ ​ 241,917 Total loans held for investment ​ $ 41,434 ​ $ 11,587 ​ $ 8,856 ​ $ 90,221 ​ $ 26,953 ​ $ 9,537,156 ​ $ 9,716,207
Impaired Loans by Class	The following table shows the Company’s impaired loans, excluding PCI loans, by segment at December 31, 2019 and 2018 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019 ​ December 31, 2018 ​ ​ ​ Unpaid ​ ​ ​ ​ Unpaid ​ ​ ​ ​ Recorded ​ Principal ​ Related ​ Recorded ​ Principal ​ Related ​ ​ Investment ​ Balance ​ Allowance ​ Investment ​ Balance ​ Allowance Loans without a specific allowance ​ ​ ​ ​ ​ ​ Construction and Land Development ​ $ 5,877 ​ $ 7,174 ​ $ — ​ $ 10,290 ​ $ 12,038 ​ $ — Commercial Real Estate - Owner Occupied ​ 8,801 ​ 9,296 ​ — ​ 8,386 ​ 9,067 ​ — Commercial Real Estate - Non-Owner Occupied ​ 3,510 ​ 4,059 ​ — ​ 6,578 ​ 6,929 ​ — Commercial & Industrial ​ 3,668 ​ 3,933 ​ — ​ 3,059 ​ 3,251 ​ — Residential 1-4 Family - Commercial ​ 4,047 ​ 4,310 ​ — ​ 3,378 ​ 3,439 ​ — Residential 1-4 Family - Consumer ​ 8,420 ​ 9,018 ​ — ​ 9,642 ​ 10,317 ​ — Residential 1-4 Family - Revolving ​ 862 ​ 865 ​ — ​ 1,150 ​ 1,269 ​ — Consumer ​ ​ — ​ ​ — ​ ​ — ​ ​ 30 ​ ​ 102 ​ ​ — Other Commercial ​ — ​ — ​ — ​ 478 ​ 478 ​ — Total impaired loans without a specific allowance ​ $ 35,185 ​ $ 38,655 ​ $ — ​ $ 42,991 ​ $ 46,890 ​ $ — Loans with a specific allowance ​ ​ ​ ​ ​ ​ Construction and Land Development ​ $ 984 ​ $ 1,032 ​ $ 49 ​ $ 372 ​ $ 491 ​ $ 63 Commercial Real Estate - Owner Occupied ​ 2,820 ​ 3,093 ​ 146 ​ 4,304 ​ 4,437 ​ 359 Commercial Real Estate - Non-Owner Occupied ​ 335 ​ 383 ​ 2 ​ 391 ​ 391 ​ 1 Commercial & Industrial ​ 2,568 ​ 2,590 ​ 619 ​ 1,183 ​ 1,442 ​ 752 Residential 1-4 Family - Commercial ​ 1,726 ​ 1,819 ​ 162 ​ 2,120 ​ 2,152 ​ 89 Residential 1-4 Family - Consumer ​ 12,026 ​ 12,670 ​ 1,242 ​ 6,389 ​ 6,645 ​ 470 Residential 1-4 Family - Revolving ​ 2,186 ​ 2,369 ​ 510 ​ 724 ​ 807 ​ 188 Auto ​ 563 ​ 879 ​ 221 ​ 576 ​ 830 ​ 231 Consumer ​ 168 ​ 336 ​ 46 ​ 178 ​ 467 ​ 64 Other Commercial ​ ​ 562 ​ ​ 567 ​ ​ 30 ​ ​ — ​ ​ — ​ ​ — Total impaired loans with a specific allowance ​ $ 23,938 ​ $ 25,738 ​ $ 3,027 ​ $ 16,237 ​ $ 17,662 ​ $ 2,217 Total impaired loans ​ $ 59,123 ​ $ 64,393 ​ $ 3,027 ​ $ 59,228 ​ $ 64,552 ​ $ 2,217 ​ ​ The following table shows the average recorded investment and interest income recognized for the Company’s impaired loans, excluding PCI loans, by segment for the years ended December 31, 2019, 2018 and 2017 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019 ​ December 31, 2018 ​ December 31, 2017 ​ ​ ​ Interest ​ ​ Interest ​ ​ Interest ​ ​ Average ​ Income ​ Average ​ Income ​ Average ​ Income ​ ​ Investment ​ Recognized ​ Investment ​ Recognized ​ Investment ​ Recognized Construction and Land Development ​ $ 6,764 ​ $ 110 ​ $ 11,648 ​ $ 234 ​ $ 17,080 ​ $ 590 Commercial Real Estate - Owner Occupied ​ 12,258 ​ 323 ​ 13,383 ​ 499 ​ 6,580 ​ 306 Commercial Real Estate - Non-Owner Occupied ​ 4,775 ​ 147 ​ 7,157 ​ 246 ​ 6,083 ​ 172 Commercial & Industrial ​ 6,438 ​ 293 ​ 4,672 ​ 232 ​ 3,208 ​ 150 Residential 1-4 Family - Commercial ​ 6,145 ​ 120 ​ 5,667 ​ 180 ​ 4,422 ​ 162 Residential 1-4 Family - Consumer ​ 20,963 ​ 308 ​ 16,977 ​ 236 ​ 12,812 ​ 222 Residential 1-4 Family - Revolving ​ 3,256 ​ 82 ​ 2,000 ​ 23 ​ 2,659 ​ 36 Auto ​ 788 ​ 15 ​ 824 ​ 20 ​ 579 ​ 19 Consumer ​ 187 ​ 5 ​ 263 ​ 5 ​ 428 ​ 14 Other Commercial ​ ​ 584 ​ ​ 22 ​ ​ 486 ​ ​ 27 ​ ​ 382 ​ ​ 22 Total impaired loans ​ $ 62,158 ​ $ 1,425 ​ $ 63,077 ​ $ 1,702 ​ $ 54,233 ​ $ 1,693
Summary of Modified Loans that Continue to Accrue Interest Under the Terms of Restructuring Agreement	The following table provides a summary, by segment, of TDRs that continue to accrue interest under the terms of the 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 and 2018 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019 ​ December 31, 2018 ​ No. of Recorded Outstanding No. of Recorded Outstanding ​ ​ Loans ​ Investment ​ Commitment ​ Loans ​ Investment ​ Commitment Performing ​ ​ ​ ​ Construction and Land Development 4 ​ $ 1,114 ​ $ — 5 ​ $ 2,496 ​ $ — Commercial Real Estate - Owner Occupied 6 ​ 2,228 ​ 26 8 ​ 2,783 ​ — Commercial Real Estate - Non-Owner Occupied 1 ​ 1,089 ​ — 4 ​ 4,438 ​ — Commercial & Industrial 4 ​ 1,020 ​ — 4 ​ 978 ​ — Residential 1-4 Family - Commercial 5 ​ 290 ​ — 8 ​ 1,075 ​ — Residential 1-4 Family - Consumer 69 ​ 9,396 ​ — 52 ​ 6,882 ​ — Residential 1-4 Family - Revolving 2 ​ 56 ​ — 2 ​ 58 ​ — Consumer 4 ​ 29 ​ — 1 ​ 13 ​ — Other Commercial ​ 1 ​ ​ 464 ​ ​ — ​ 1 ​ ​ 478 ​ ​ — Total performing 96 ​ $ 15,686 ​ $ 26 85 ​ $ 19,201 ​ $ — Nonperforming ​ ​ ​ ​ Construction and Land Development — ​ $ — ​ $ — 2 ​ $ 3,474 ​ $ — Commercial Real Estate - Owner Occupied 2 ​ 176 ​ — 2 ​ 198 ​ — Commercial & Industrial 1 ​ 55 ​ — 6 ​ 461 ​ — Residential 1-4 Family - Commercial — ​ — ​ — 1 ​ 60 ​ — Residential 1-4 Family - Consumer 19 ​ 3,522 ​ — 15 ​ 3,135 ​ — Residential 1-4 Family - Revolving 2 ​ 57 ​ — 2 ​ 62 ​ — Consumer ​ — ​ ​ — ​ ​ — ​ 1 ​ ​ 7 ​ ​ — Total nonperforming 24 ​ $ 3,810 ​ $ — 29 ​ $ 7,397 ​ $ — Total performing and nonperforming 120 ​ $ 19,496 ​ $ 26 114 ​ $ 26,598 ​ $ —
Schedule of TDR by Class and Modification Type	The following table shows, by segment and modification type, TDRs that occurred during the years ended December 31, 2019 and 2018 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ All Restructurings ​ ​ 2019 ​ 2018 ​ ​ Recorded ​ Recorded ​ ​ No. of ​ Investment at ​ No. of ​ Investment at ​ ​ Loans ​ Period End ​ 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 ​ ​ Construction and Land Development — ​ $ — 4 ​ $ 4,675 Commercial Real Estate - Owner Occupied — ​ — 5 ​ 1,365 Commercial Real Estate - Non-Owner Occupied — ​ — 1 ​ 1,089 Commercial & Industrial 1 ​ 376 3 ​ 334 Residential 1-4 Family - Commercial 1 ​ 72 1 ​ 71 Residential 1-4 Family - Consumer 7 ​ 1,688 9 ​ 1,079 Consumer ​ 3 ​ ​ 24 ​ 1 ​ ​ 13 Total loan term extended at a market rate 12 ​ $ 2,160 24 ​ $ 8,626 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Term modification, below market rate ​ ​ Construction and Land Development ​ 3 ​ $ 193 ​ — ​ $ — Commercial Real Estate - Non-Owner Occupied — ​ — 1 ​ ​ 2,782 Residential 1-4 Family - Consumer 22 ​ 2,658 19 ​ 2,783 Residential 1-4 Family - Revolving — ​ — 2 ​ ​ 46 Consumer 1 ​ 5 — ​ — Total loan term extended at a below market rate 26 ​ $ 2,856 22 ​ $ 5,611 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest rate modification, below market rate ​ ​ Residential 1-4 Family - Commercial — ​ $ — 1 ​ $ 265 Total interest only at below market rate of interest — ​ $ — 1 ​ $ 265 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total 38 ​ $ 5,016 47 ​ $ 14,502
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 allowance for loan loss activity by segment for the year ended December 31, 2019, 2018, and 2017. 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 of ​ credited to ​ charged ​ charged to ​ end 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. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, 2017 ​ ​ 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 ​ $ 10,055 ​ $ 206 ​ $ (2,190) ​ $ 1,638 ​ $ 9,709 Commercial Real Estate - Owner Occupied ​ 3,801 ​ 171 ​ (46) ​ (995) ​ 2,931 Commercial Real Estate - Non-Owner Occupied ​ 6,622 ​ 2 ​ (1,180) ​ 2,100 ​ 7,544 Multifamily Real Estate ​ 1,236 ​ — ​ — ​ (144) ​ 1,092 Commercial & Industrial ​ 4,627 ​ 483 ​ (2,277) ​ 1,719 ​ 4,552 Residential 1-4 Family - Commercial ​ 3,698 ​ 329 ​ (463) ​ 873 ​ 4,437 Residential 1-4 Family - Consumer ​ 2,701 ​ 102 ​ (588) ​ (691) ​ 1,524 Residential 1-4 Family - Revolving ​ 1,328 ​ 314 ​ (1,019) ​ 737 ​ 1,360 Auto ​ 946 ​ 459 ​ (1,038) ​ 608 ​ 975 Consumer and all other (1) ​ 2,178 ​ 1,189 ​ (4,509) ​ 5,226 ​ 4,084 Total ​ $ 37,192 ​ $ 3,255 ​ $ (13,310) ​ $ 11,071 ​ $ 38,208 ​ (1) Consumer and Other Commercial are grouped together as Consumer and all other for reporting purposes. The following tables show the loan and allowance for loan loss balances based on impairment methodology by segment as of December 31, 2019 and 2018 (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. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2018 ​ ​ 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 ​ $ 10,662 ​ $ 63 ​ $ 1,175,505 ​ $ 6,740 ​ $ 8,654 ​ $ — ​ $ 1,194,821 ​ $ 6,803 Commercial Real Estate - Owner Occupied ​ 12,690 ​ 359 ​ 1,299,011 ​ 3,664 ​ 25,644 ​ — ​ 1,337,345 ​ 4,023 Commercial Real Estate - Non-Owner Occupied ​ 6,969 ​ 1 ​ 2,443,106 ​ 8,864 ​ 17,335 ​ — ​ 2,467,410 ​ 8,865 Multifamily Real Estate ​ — ​ — ​ 548,143 ​ 649 ​ 88 ​ — ​ 548,231 ​ 649 Commercial & Industrial ​ 4,242 ​ 752 ​ 1,310,737 ​ 6,884 ​ 2,156 ​ — ​ 1,317,135 ​ 7,636 Residential 1-4 Family - Commercial ​ 5,498 ​ 89 ​ 621,320 ​ 1,603 ​ 13,601 ​ — ​ 640,419 ​ 1,692 Residential 1-4 Family - Consumer ​ 16,031 ​ 470 ​ 641,006 ​ 1,022 ​ 16,872 ​ — ​ 673,909 ​ 1,492 Residential 1-4 Family - Revolving ​ 1,874 ​ 188 ​ 606,394 ​ 1,109 ​ 5,115 ​ — ​ 613,383 ​ 1,297 Auto ​ 576 ​ 231 ​ 301,360 ​ 1,212 ​ 7 ​ — ​ 301,943 ​ 1,443 Consumer and all other (1) ​ 686 ​ 64 ​ 620,176 ​ 7,081 ​ 749 ​ — ​ 621,611 ​ 7,145 Total loans held for investment, net ​ $ 59,228 ​ $ 2,217 ​ $ 9,566,758 ​ $ 38,828 ​ $ 90,221 ​ $ — ​ $ 9,716,207 ​ $ 41,045 (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 segment 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 ​ The following table shows the recorded investment in all loans, excluding PCI loans, by segment with their related risk level as of December 31, 2018 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass Watch & Special Mention Substandard Doubtful Total Construction and Land Development ​ $ 1,130,577 ​ $ 43,894 ​ $ 11,696 ​ $ — ​ $ 1,186,167 Commercial Real Estate - Owner Occupied ​ 1,231,422 ​ 50,939 ​ 29,340 ​ — ​ 1,311,701 Commercial Real Estate - Non-Owner Occupied ​ 2,425,500 ​ 17,648 ​ 6,927 ​ — ​ 2,450,075 Multifamily Real Estate ​ 537,572 ​ 10,571 ​ — ​ — ​ 548,143 Commercial & Industrial ​ 1,273,549 ​ 34,864 ​ 6,566 ​ — ​ 1,314,979 Residential 1-4 Family - Commercial ​ 606,955 ​ 14,876 ​ 4,987 ​ — ​ 626,818 Residential 1-4 Family - Consumer ​ 624,346 ​ 17,065 ​ 15,626 ​ — ​ 657,037 Residential 1-4 Family - Revolving ​ 598,444 ​ 6,316 ​ 3,508 ​ — ​ 608,268 Auto ​ 296,907 ​ 3,590 ​ 1,439 ​ — ​ 301,936 Consumer ​ 378,873 ​ 547 ​ 242 ​ — ​ 379,662 Other Commercial ​ 239,857 ​ 864 ​ 479 ​ — ​ 241,200 Total ​ $ 9,344,002 ​ $ 201,174 ​ $ 80,810 ​ $ — ​ $ 9,625,986
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, ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ For the Year Ended December 31, ​ 2019 2018 Balance at beginning of period ​ $ 31,201 ​ $ 14,563 Additions ​ 5,060 ​ 12,225 Accretion ​ (13,432) ​ (8,654) Reclass of nonaccretable difference due to improvement in expected cash flows ​ 4,485 ​ 1,876 Measurement period adjustment ​ 631 ​ 3,974 Other, net (1) ​ 3,329 ​ 7,217 Balance at end of period ​ $ 31,274 ​ $ 31,201 (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 segment 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 ​ ​ The following table shows the PCI loan portfolios, by segment and their delinquency status, at December 31, 2018 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 30-89 Days Greater than ​ ​ ​ ​ ​ ​ Past Due ​ 90 Days ​ Current ​ Total Construction and Land Development ​ $ 108 ​ $ 1,424 ​ $ 7,122 ​ $ 8,654 Commercial Real Estate - Owner Occupied ​ 658 ​ 4,281 ​ 20,705 ​ 25,644 Commercial Real Estate - Non-Owner Occupied ​ 61 ​ 1,810 ​ 15,464 ​ 17,335 Multifamily Real Estate ​ — ​ — ​ 88 ​ 88 Commercial & Industrial ​ 47 ​ 1,092 ​ 1,017 ​ 2,156 Residential 1-4 Family - Commercial ​ 871 ​ 3,454 ​ 9,276 ​ 13,601 Residential 1-4 Family - Consumer ​ 1,959 ​ 2,422 ​ 12,491 ​ 16,872 Residential 1-4 Family - Revolving ​ 498 ​ 252 ​ 4,365 ​ 5,115 Auto ​ ​ — ​ ​ — ​ ​ 7 ​ ​ 7 Consumer ​ ​ 5 ​ ​ 9 ​ ​ 18 ​ ​ 32 Other Commercial ​ 57 ​ — ​ 660 ​ 717 Total ​ $ 4,264 ​ $ 14,744 ​ $ 71,213 ​ $ 90,221
Loans Receivables Related Risk Rating	The following table shows the recorded investment in only PCI loans by segment 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 ​ ​ ​ ​ ​ The following table shows the recorded investment in only PCI loans by segment with their related risk level as of December 31, 2018 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass Watch & Special Mention Substandard Doubtful Total Construction and Land Development ​ $ 1,835 ​ $ 1,308 ​ $ 5,511 ​ $ — ​ $ 8,654 Commercial Real Estate - Owner Occupied ​ 8,347 ​ 6,685 ​ 10,612 ​ — ​ 25,644 Commercial Real Estate - Non-Owner Occupied ​ 4,789 ​ 7,992 ​ 4,554 ​ — ​ 17,335 Multifamily Real Estate ​ — ​ 88 ​ — ​ — ​ 88 Commercial & Industrial ​ 762 ​ 134 ​ 1,260 ​ — ​ 2,156 Residential 1-4 Family - Commercial ​ 6,476 ​ 2,771 ​ 4,354 ​ — ​ 13,601 Residential 1-4 Family - Consumer ​ 9,930 ​ 1,030 ​ 5,912 ​ — ​ 16,872 Residential 1-4 Family - Revolving ​ 3,438 ​ 1,031 ​ 646 ​ — ​ 5,115 Auto ​ ​ 7 ​ ​ — ​ ​ — ​ ​ — ​ ​ 7 Consumer ​ 17 ​ — ​ 15 ​ — ​ 32 Other Commercial ​ ​ 57 ​ ​ 660 ​ ​ — ​ ​ — ​ ​ 717 Total ​ $ 35,658 ​ $ 21,699 ​ $ 32,864 ​ $ — ​ $ 90,221

PREMISES AND EQUIPMENT (Tables)

PREMISES AND EQUIPMENT (Tables)	12 Months Ended
	Dec. 31, 2019
Property, Plant and Equipment [Abstract]
Summary of Bank Premises and Equipment	The Company’s premises and equipment as of December 31, 2019 and 2018 are as follows (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ 2019 2018 Land ​ $ 44,578 ​ $ 41,494 Land improvements and buildings ​ 123,189 ​ 119,649 Leasehold improvements ​ 20,597 ​ 10,266 Furniture and equipment ​ 71,469 ​ 62,154 Construction in progress ​ 3,549 ​ 6,956 Total ​ 263,382 ​ 240,519 Less accumulated depreciation and amortization ​ 102,309 ​ 93,552 Bank premises and equipment, net ​ $ 161,073 ​ $ 146,967 ​

INTANGIBLE ASSETS (Tables)

INTANGIBLE ASSETS (Tables)	12 Months Ended
	Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Information Concerning Intangible Assets with Finite Life	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, 2019 ​ ​ ​ Core deposit intangibles ​ $ 135,300 ​ $ 73,336 ​ $ 61,964 Other amortizable intangibles ​ 15,349 ​ 3,644 ​ 11,705 December 31, 2018 ​ ​ ​ Core deposit intangibles ​ $ 95,152 ​ $ 57,293 ​ $ 37,859 Other amortizable intangibles ​ 12,695 ​ 1,870 ​ 10,825
Estimated Remaining Amortization Expense of Intangibles	As of December 31, 2019, the estimated remaining amortization expense of intangibles for the years ended is as follows (dollars in thousands): ​ ​ ​ ​ ​ 2020 $ 16,483 2021 ​ ​ 13,874 2022 ​ ​ 11,490 2023 ​ ​ 9,687 2024 ​ ​ 7,819 Thereafter ​ ​ 14,316 Total estimated amortization expense ​ $ 73,669

LEASES (Tables)

LEASES (Tables)	12 Months Ended
	Dec. 31, 2019
Leases [Abstract]
Maturity of Operating Leases	Maturities of operating lease liabilities as of December 31, 2019 are as follows for the years ending (dollars in thousands): ​ ​ ​ ​ 2020 $ 13,046 2021 ​ 11,321 2022 ​ 10,344 2023 ​ 9,377 2024 ​ 8,065 Thereafter ​ 21,025 Total future lease payments ​ 73,178 Less: Interest ​ 7,126 Present value of lease liabilities ​ $ 66,052
Other Lease Information	Other lease information is as follows (dollars in thousands): ​ ​ ​ ​ ​ ​ December 31, 2019 Lease Term and Discount Rate of Operating leases: ​ ​ Weighted-average remaining lease term (years) ​ 7.36 ​ Weighted-average discount rate (1) ​ 2.69 % Cash paid for amounts included in measurement of lease liabilities: ​ ​ Operating Cash Flows from Operating Leases ​ $ 13,697 ​ Right-of-use assets obtained in exchange for lease obligations: ​ ​ Operating leases ​ 8,065 ​ ​ (1) An incremental borrowing rate is used based on information available at commencement date of lease.

DEPOSITS (Tables)

DEPOSITS (Tables)	12 Months Ended
	Dec. 31, 2019
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): ​ ​ ​ ​ ​ ​ ​ ​ ​ 2019 2018 Interest-bearing deposits: ​ ​ NOW accounts ​ $ 2,905,714 ​ $ 2,288,523 Money market accounts ​ 3,951,856 ​ 2,875,301 Savings accounts ​ 727,847 ​ 622,823 Time deposits of $250,000 and over ​ 684,797 ​ 292,224 Other time deposits ​ 2,064,628 ​ 1,797,482 Total interest-bearing deposits ​ $ 10,334,842 ​ $ 7,876,353
Scheduled Maturities of Time Deposits	As of December 31, 2019, the scheduled maturities of time deposits are as follows for the years ended December 31, (dollars in thousands): ​ ​ ​ ​ ​ 2020 $ 1,626,492 2021 ​ 621,567 2022 ​ 199,507 2023 ​ 140,722 2024 ​ 160,465 Thereafter ​ 672 Total scheduled maturities of time deposits ​ $ 2,749,425

BORROWINGS (Tables)

BORROWINGS (Tables)	12 Months Ended
	Dec. 31, 2019
Debt Disclosure [Abstract]
Short-Term Borrowings	Total short-term borrowings consist of the following as of December 31, 2019 and 2018 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2019 ​ 2018 Securities sold under agreements to repurchase ​ $ 66,053 ​ $ 39,197 ​ FHLB advances ​ 370,200 ​ 1,043,600 ​ Other short-term borrowings ​ — ​ 5,000 ​ Total short-term borrowings ​ $ 436,253 ​ $ 1,087,797 ​ ​ ​ ​ ​ ​ ​ ​ ​ Average outstanding balance during the period ​ $ 673,116 ​ $ 968,014 ​ Average interest rate (during the period) ​ 2.30 % 1.91 % Average interest rate at end of period ​ 1.52 % 2.43 %
Trust Preferred Capital Notes Qualify for Tier 2 Capital	The Company’s trust preferred capital notes consist of the following as of December 31, 2019: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Trust ​ ​ ​ ​ ​ ​ ​ Preferred ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Capital ​ ​ ​ ​ Spread to ​ ​ ​ ​ ​ ​ Securities (1) ​ Investment (1) ​ 3-Month LIBOR ​ Rate (2) ​ Maturity Trust Preferred Capital Note - Statutory Trust I ​ $ 22,500,000 ​ $ 696,000 2.75 % 4.66 % 6/17/2034 Trust Preferred Capital Note - Statutory Trust II ​ 36,000,000 ​ 1,114,000 1.40 % 3.31 % 6/15/2036 VFG Limited Liability Trust I Indenture ​ 20,000,000 ​ 619,000 2.73 % 4.64 % 3/18/2034 FNB Statutory Trust II Indenture ​ 12,000,000 ​ 372,000 3.10 % 5.01 % 6/26/2033 Gateway Capital Statutory Trust I ​ 8,000,000 ​ 248,000 3.10 % 5.01 % 9/17/2033 Gateway Capital Statutory Trust II ​ 7,000,000 ​ 217,000 2.65 % 4.56 % 6/17/2034 Gateway Capital Statutory Trust III ​ 15,000,000 ​ 464,000 1.50 % 3.41 % 5/30/2036 Gateway Capital Statutory Trust IV ​ 25,000,000 ​ 774,000 1.55 % 3.46 % 7/30/2037 MFC Capital Trust II ​ 5,000,000 ​ 155,000 2.85 % 4.76 % 1/23/2034 Total ​ $ 150,500,000 ​ $ 4,659,000 (1) 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 Consolidated Balance Sheets. (2) Rate as of December 31, 2019.
Advances from the FHLB	As of December 31, 2019, the Company had long-term advances from the FHLB consisting of the following (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Spread to ​ ​ ​ ​ ​ ​ 3-Month ​ Interest ​ ​ ​ ​ ​ Long-term Type ​ LIBOR ​ Rate (1) ​ Maturity Date ​ Advance Amount Convertible Flipper (0.75) % 1.16 % 8/17/2029 ​ $ 50,000 Convertible Flipper (0.50) % 1.41 % 5/15/2024 ​ 200,000 Convertible Flipper (0.75) % 1.16 % 5/22/2029 ​ 150,000 Convertible Flipper (0.75) % 1.16 % 5/30/2029 ​ 50,000 Convertible Flipper ​ (0.75) % 1.16 % 6/21/2029 ​ ​ 100,000 Fixed Rate Convertible ​ - ​ 1.78 % 10/26/2028 ​ ​ 200,000 Fixed Rate Hybrid ​ - ​ 1.58 % 5/18/2020 ​ ​ 20,000 Fixed Rate Credit ​ - ​ 1.54 % 10/2/2020 ​ ​ 10,000 ​ ​ ​ ​ ​ ​ ​ ​ $ 780,000 (1) Interest rates calculated using non-rounded numbers. As of December 31, 2018, the Company had long-term advances from the FHLB consisting of the following (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Spread to ​ ​ ​ ​ ​ ​ 3-Month ​ Interest ​ ​ ​ ​ ​ Long-term Type ​ LIBOR ​ Rate (1) ​ Maturity Date ​ Advance Amount Adjustable Rate Credit 0.44 % 3.25 % 8/23/2022 ​ $ 55,000 Adjustable Rate Credit 0.45 % 3.26 % 11/23/2022 ​ 65,000 Adjustable Rate Credit 0.45 % 3.26 % 11/23/2022 ​ 10,000 Adjustable Rate Credit 0.45 % 3.26 % 11/23/2022 ​ 10,000 Fixed Rate Convertible — 1.78 % 10/26/2028 ​ 200,000 Fixed Rate Hybrid — 2.37 % 10/10/2019 ​ 25,000 Fixed Rate Hybrid — 1.58 % 5/18/2020 ​ 20,000 ​ ​ ​ ​ ​ ​ ​ ​ $ 385,000 (1) Interest rates calculated using non-rounded numbers.
Contractual Maturities of Long-Term Debt	As of December 31, 2019, the contractual maturities of long-term debt are as follows for the years ending (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Trust ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Preferred ​ ​ ​ ​ ​ ​ ​ Fair Value ​ ​ ​ ​ ​ Capital ​ Subordinated ​ FHLB ​ Premium ​ Total Long-term ​ ​ Notes ​ Debt ​ Advances ​ (Discount) (1) ​ Borrowings 2020 ​ $ — ​ $ — ​ $ 30,000 ​ $ (834) ​ $ 29,166 2021 ​ — ​ — ​ — ​ (1,008) ​ (1,008) 2022 ​ — ​ — ​ — ​ (1,030) ​ (1,030) 2023 ​ — ​ — ​ — ​ (1,053) ​ (1,053) 2024 ​ — ​ — ​ 200,000 ​ (1,078) ​ 198,922 Thereafter ​ 155,159 ​ 158,500 ​ 550,000 ​ (11,161) ​ 852,498 Total long-term borrowings ​ $ 155,159 ​ $ 158,500 ​ $ 780,000 ​ $ (16,164) ​ $ 1,077,495 ​ (1) Includes discount on issued subordinated notes.

COMMITMENTS AND CONTINGENCIES (

COMMITMENTS AND CONTINGENCIES (Tables)	12 Months Ended
	Dec. 31, 2019
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): ​ ​ ​ ​ ​ ​ ​ ​ ​ 2019 2018 Commitments with off-balance sheet risk: ​ ​ Commitments to extend credit (1) ​ $ 4,691,272 ​ $ 3,167,085 Standby letters of credit ​ 209,658 ​ 167,597 Total commitments with off-balance sheet risk ​ $ 4,900,930 ​ $ 3,334,682 ​ ​ ​ ​ ​ ​ ​ (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, 2019 and 2018 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 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 market value. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (2) Balance represents book value. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pledged Assets as of December 31, 2018 ​ ​ ​ ​ ​ ​ AFS HTM ​ ​ ​ ​ ​ ​ Cash ​ Securities (1) ​ Securities (1) ​ Loans (2) ​ Total Public deposits ​ $ — ​ $ 293,169 ​ $ 7,407 ​ $ — ​ $ 300,576 Repurchase agreements ​ — ​ 55,269 ​ — ​ — ​ 55,269 FHLB advances ​ — ​ 488 ​ — ​ 3,337,289 ​ 3,337,777 Derivatives ​ 13,509 ​ 1,938 ​ — ​ — ​ 15,447 Other purposes ​ — ​ 23,217 ​ — ​ — ​ 23,217 Total pledged assets ​ $ 13,509 ​ $ 374,081 ​ $ 7,407 ​ $ 3,337,289 ​ $ 3,732,286 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (1) Balance represents book value. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (2) Balance represents market value. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

DERIVATIVES (Tables)

DERIVATIVES (Tables)	12 Months Ended
	Dec. 31, 2019
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, 2019 and 2018, segregated by derivatives that are considered accounting hedges and those that are not (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019 December 31, 2018 ​ ​ ​ ​ ​ 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 ​ $ 152,500 ​ $ — ​ $ 4,786 Fair value hedges ​ 133,078 ​ 182 ​ 6,256 ​ 137,596 ​ 1,872 ​ 1,684 Derivatives not designated as accounting hedges: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Loan Swaps : ​ ​ ​ ​ ​ ​ Pay fixed - receive floating interest rate swaps ​ 1,575,149 ​ 753 ​ 53,592 ​ 878,446 ​ 10,120 ​ 9,306 Pay floating - receive fixed interest rate swaps ​ 1,575,149 ​ 53,592 ​ 753 ​ 878,446 ​ 9,306 ​ 10,120 (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, 2019 and 2018 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019 ​ December 31, 2018 ​ ​ ​ 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) ​ $ 206,799 ​ $ 4,072 ​ $ 224,241 ​ $ 1,399 Loans ​ 83,078 ​ 1,972 ​ 87,596 ​ (1,572) (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, 2019 and 2018, the amortized cost basis of this portfolio was $207 million and $224 million, respectively, and the cumulative basis adjustment associated with this hedge was $4.1 million and $1.4 million, respectively. The amount of the designated hedged item at December 31, 2019 and 2018 totaled $50 million. (2) Carrying value represents amortized cost.

STOCKHOLDERS' EQUITY (Tables)

STOCKHOLDERS' EQUITY (Tables)	12 Months Ended
	Dec. 31, 2019
Equity [Abstract]
Change in Accumulated Other Comprehensive Income	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) ​ ​ ​ ​ ​ Securities ​ to HTM ​ Flow Hedges ​ on 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) on ​ ​ ​ ​ ​ Securities ​ to HTM ​ Flow Hedges ​ 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. The change in accumulated other comprehensive income (loss) for the year ended December 31, 2017 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, 2016 ​ $ (542) ​ $ 3,377 ​ $ (5,179) ​ $ (1,465) ​ $ (3,809) Other comprehensive income (loss): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other comprehensive income (loss) before reclassification ​ ​ 2,936 ​ — ​ (44) ​ — ​ 2,892 Amounts reclassified from AOCI into earnings ​ (520) ​ (672) ​ 862 ​ 363 ​ 33 Net current period other comprehensive income (loss) ​ ​ 2,416 ​ ​ (672) ​ ​ 818 ​ ​ 363 ​ ​ 2,925 Balance - December 31, 2017 ​ $ 1,874 ​ $ 2,705 ​ $ (4,361) ​ $ (1,102) ​ $ (884)

REGULATORY MATTERS AND CAPITAL

REGULATORY MATTERS AND CAPITAL (Tables)	12 Months Ended
	Dec. 31, 2019
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, 2019 and 2018 (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, 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 % As of December 31, 2018 ​ ​ ​ Common equity Tier 1 capital to risk weighted assets: ​ ​ ​ Consolidated ​ $ 1,106,871 9.93 % $ 501,608 4.50 % NA NA ​ Atlantic Union Bank ​ 1,378,039 12.40 % 500,224 4.50 % 722,546 6.50 % Tier 1 capital to risk weighted assets: ​ ​ ​ Consolidated ​ 1,236,709 11.09 % 668,817 6.00 % NA NA ​ Atlantic Union Bank ​ 1,378,039 12.40 % 666,965 6.00 % 889,287 8.00 % Total capital to risk weighted assets: ​ ​ ​ Consolidated ​ 1,435,711 12.88 % 891,753 8.00 % NA NA ​ Atlantic Union Bank ​ 1,419,984 12.77 % 889,289 8.00 % 1,111,612 10.00 % Tier 1 capital to average adjusted assets: ​ ​ ​ Consolidated ​ 1,236,709 9.71 % 509,678 4.00 % NA NA ​ Atlantic Union Bank ​ 1,378,039 10.84 % 508,412 4.00 % 635,515 5.00 %

FAIR VALUE MEASUREMENTS (Tables

FAIR VALUE MEASUREMENTS (Tables)	12 Months Ended
	Dec. 31, 2019
Fair Value Disclosures [Abstract]
Schedule of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis	The following tables present the balances of financial assets and liabilities measured at fair value on a recurring basis at December 31, 2019 and 2018 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 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 ​ $ — ​ $ 4,498 ​ $ — ​ $ 4,498 Obligations of states and political subdivisions ​ — ​ 442,992 ​ — ​ 442,992 Corporate and other bonds (1) ​ — ​ 263,070 ​ — ​ 263,070 Mortgage-backed securities ​ — ​ 1,231,806 ​ — ​ 1,231,806 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 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurements at December 31, 2018 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: ​ ​ ​ ​ ​ Obligations of states and political subdivisions ​ $ — ​ $ 468,491 ​ $ — ​ $ 468,491 Corporate and other bonds (1) ​ — ​ 167,696 ​ — ​ 167,696 Mortgage-backed securities ​ — ​ 1,129,865 ​ — ​ 1,129,865 Other securities ​ — ​ 8,769 ​ — ​ 8,769 Derivatives: ​ ​ ​ ​ Interest rate swap ​ — ​ 19,426 ​ — ​ 19,426 Fair value hedges ​ — ​ 1,872 ​ — ​ 1,872 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ LIABILITIES ​ ​ ​ ​ Derivatives: ​ ​ ​ ​ Interest rate swap ​ $ — ​ $ 19,426 ​ $ — ​ $ 19,426 Cash flow hedges ​ — ​ 4,786 ​ — ​ 4,786 Fair value hedges ​ — ​ 1,684 ​ — ​ 1,684 (1) Other bonds includes asset-backed securities.
Schedule of Financial Assets Measured at Fair Value on Nonrecurring Basis	The following tables summarize the Company’s financial assets that were measured at fair value on a nonrecurring basis at December 31, 2019 and 2018 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 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 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Impaired loans ​ $ — ​ $ — ​ $ 3,593 ​ $ 3,593 Foreclosed properties ​ — ​ — ​ 4,708 ​ 4,708 Former bank premises ​ — ​ — ​ 3,557 ​ 3,557 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurements at December 31, 2018 using ​ ​ ​ Significant ​ ​ ​ ​ ​ ​ Quoted Prices in ​ Other ​ Significant ​ ​ ​ ​ ​ Active Markets for ​ Observable ​ Unobservable ​ ​ ​ ​ ​ Identical Assets ​ Inputs ​ Inputs ​ ​ ​ ​ ​ Level 1 ​ Level 2 ​ Level 3 ​ Balance ASSETS ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Impaired loans ​ $ — ​ $ — ​ $ 3,734 ​ $ 3,734 Foreclosed properties ​ — ​ — ​ 6,722 ​ 6,722 Former bank premises ​ — ​ — ​ 2,090 ​ 2,090
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, 2019 and 2018 are as follows (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 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 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurements at December 31, 2018 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 ​ $ 261,199 ​ $ 261,199 ​ $ — ​ $ — ​ $ 261,199 AFS securities ​ 1,774,821 ​ — ​ 1,774,821 ​ — ​ 1,774,821 HTM securities ​ 492,272 ​ — ​ 499,501 ​ — ​ 499,501 Restricted stock ​ 124,602 ​ — ​ 124,602 ​ — ​ 124,602 Net loans ​ 9,675,162 ​ — ​ — ​ 9,534,717 ​ 9,534,717 Derivatives: ​ ​ ​ ​ ​ Interest rate swap ​ 19,426 ​ — ​ 19,426 ​ — ​ 19,426 Fair value hedges ​ 1,872 ​ — ​ 1,872 ​ — ​ 1,872 Accrued interest receivable ​ 46,062 ​ — ​ 46,062 ​ — ​ 46,062 BOLI ​ 263,034 ​ — ​ 263,034 ​ — ​ 263,034 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ LIABILITIES ​ ​ ​ ​ ​ Deposits ​ $ 9,970,960 ​ $ — ​ $ 9,989,788 ​ $ — ​ $ 9,989,788 Borrowings ​ 1,756,278 ​ — ​ 1,742,038 ​ — ​ 1,742,038 Accrued interest payable ​ 5,284 ​ — ​ 5,284 ​ — ​ 5,284 Derivatives: ​ ​ ​ ​ ​ Interest rate swap ​ 19,426 ​ — ​ 19,426 ​ — ​ 19,426 Cash flow hedges ​ 4,786 ​ — ​ 4,786 ​ — ​ 4,786 Fair value hedges ​ 1,684 ​ — ​ 1,684 ​ — ​ 1,684

REVENUE (Tables)

REVENUE (Tables)	12 Months Ended
	Dec. 31, 2019
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue	Noninterest income disaggregated by major source for the years ended December 31, 2019, 2018, and 2017 consisted of the following (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2019 2018 2017 Noninterest income: ​ ​ ​ Deposit Service Charges (1) ​ ​ ​ Overdraft fees ​ $ 24,092 ​ $ 21,052 ​ $ 15,788 Maintenance fees & other ​ 6,110 ​ 4,387 ​ 3,062 Other service charges and fees (1) ​ 6,423 ​ 5,603 ​ 4,593 Interchange fees (1) ​ 14,619 ​ 18,803 ​ 14,974 Fiduciary and asset management fees (1) ​ ​ ​ ​ Trust asset management fees ​ 9,141 ​ 5,536 ​ 5,128 Registered advisor management fees ​ 10,107 ​ 6,589 ​ 2,692 Brokerage management fees ​ 4,117 ​ 4,025 ​ 3,425 Mortgage banking income ​ 10,303 ​ — ​ — Gains (losses) on securities transactions ​ 7,675 ​ 383 ​ 800 Bank owned life insurance income ​ 8,311 ​ 7,198 ​ 6,144 Loan-related interest rate swap fees ​ 14,126 ​ 3,554 ​ 3,051 Gain on Shore Premier sale ​ — ​ 19,966 ​ — Other operating income (2) ​ 17,791 ​ 7,145 ​ 2,772 Total noninterest income (3) ​ $ 132,815 ​ $ 104,241 ​ $ 62,429 (1) Income within scope of Topic 606. (2) Includes income within the scope of Topic 606 of $4.0 million, $4.4 million and $2.3 million for the years ended December 31, 2019, 201 8, and 2017, respectively. The remaining balance is outside the scope of Topic 606. The December 31, 2019 remaining balance 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. (3) 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, 2019
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 2019, 2018, and 2017 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2019 2018 2017 401(k) Plan ​ $ 5,550 ​ $ 4,592 ​ $ 3,505 ESOP ​ 1,163 ​ 1,005 ​ 1,255 Cash ​ 780 ​ 1,509 ​ 1,461 Total ​ $ 7,493 ​ $ 7,106 ​ $ 6,221
Schedule of Recognized Stock-Based Compensation Expense	For the years ended December 31, 2019, 2018, and 2017, the Company recognized stock-based compensation expense (included in salaries and benefits expense) (dollars in thousands, except per share data) as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, ​ 2019 2018 2017 Stock-based compensation expense ​ $ 8,332 ​ $ 6,132 ​ $ 4,648 Reduction of income tax expense ​ 1,750 ​ 1,287 ​ 1,467 Per share compensation cost ​ $ 0.08 ​ $ 0.07 ​ $ 0.06
Summary of Stock Option Activity	The following table summarizes the stock option activity during the year ended December 31, 2019: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted ​ ​ ​ ​ ​ ​ Weighted ​ Average ​ ​ ​ ​ ​ Stock ​ Average ​ Remaining ​ Aggregate ​ ​ Options ​ Exercise ​ Contractual ​ Intrinsic ​ ​ (shares) ​ Price ​ Life ​ Value Outstanding as of December 31, 2018 47,585 ​ $ 14.44 ​ Options assumed in the Access acquisition ​ 448,679 ​ ​ 33.45 ​ ​ ​ ​ ​ Granted — ​ — ​ Exercised (56,619) ​ 24.48 ​ Forfeited (9,447) ​ 31.94 ​ Expired (8,060) ​ 36.78 ​ Outstanding as of December 31, 2019 422,138 ​ 32.48 2.55 ​ $ 2,313,739 Exercisable as of December 31, 2019 368,146 ​ 32.57 2.33 ​ 2,006,915
Summary of Nonvested Stock Activity	The following table summarizes the restricted stock activity for the year ended December 31, 2019: ​ ​ ​ ​ ​ ​ ​ ​ Weighted ​ ​ Number of ​ Average ​ ​ Shares of ​ Grant-Date Fair ​ ​ RSAs ​ Value Unvested as of December 31, 2018 375,414 ​ $ 32.41 Granted 273,718 ​ 35.06 Net settle for taxes (52,253) ​ 52.01 Vested (148,584) ​ 30.78 Forfeited (16,653) ​ 34.31 Unvested as of December 31, 2019 431,642 ​ 34.90
Summary of Performance Stock Activity	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 2019, 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, 2018 150,047 ​ $ 31.67 Granted 85,543 ​ 33.66 Net settle for taxes (15,018) ​ 34.63 Vested (69,205) ​ 24.27 Forfeited (6,658) ​ 36.08 Unvested as of December 31, 2019 144,709 ​ 37.24
Schedule of Performance Stock Units Valuation Assumptions	During years ended December 31, 2019, 2018 and 2017 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: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2019 (5) 2018 (5) 2017 (5) Dividend yield (1) 2.57 % 2.25 % 2.15 % Expected life in years (2) 2.86 2.86 2.85 ​ Expected volatility (3) 24.04 % 23.47 % 23.35 % Risk-free interest rate (4) 2.48 % 2.38 % 1.40 % (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 and performance stock issued and outstanding as of December 31, 2019 that will be recognized in future periods is as follows (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Restricted Performance ​ ​ ​ ​ Stock ​ Stock ​ Total 2020 ​ $ 5,030 ​ $ 1,406 ​ $ 6,436 2021 ​ 3,299 ​ 887 ​ 4,186 2022 ​ 652 ​ — ​ 652 2023 ​ 100 ​ — ​ 100 Total ​ $ 9,081 ​ $ 2,293 ​ $ 11,374 ​

INCOME TAXES (Tables)

INCOME TAXES (Tables)	12 Months Ended
	Dec. 31, 2019
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, 2019 and 2018 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ 2019 2018 Deferred tax assets: ​ ​ Loan losses ​ $ 18,938 ​ $ 19,369 Benefit plans ​ 3,507 ​ 3,925 Acquisition accounting ​ 16,021 ​ 11,788 Lease right-of-use asset ​ ​ 13,507 ​ ​ — Stock grants ​ 2,032 ​ 894 OREO ​ 3,295 ​ 2,515 Securities available for sale ​ 1,169 ​ 1,577 Net operating losses ​ 55,023 ​ 66,037 Nonaccrual loans ​ 3,243 ​ 3,990 Other ​ 4,227 ​ 4,618 Total deferred tax assets ​ $ 120,962 ​ $ 114,713 Deferred tax liabilities: ​ ​ Acquisition accounting ​ $ 19,815 ​ $ 13,053 Lease right-of-use liability ​ ​ 11,191 ​ ​ — Premises and equipment ​ 6,696 ​ 3,877 Securities available for sale ​ 10,069 ​ 25 Other ​ 511 ​ 583 Total deferred tax liabilities ​ 48,282 ​ 17,538 Net deferred tax asset ​ $ 72,680 ​ $ 97,175
Provision for Income Taxes Charged to Operations	The provision for income taxes charged to continuing operations for the years ended December 31, 2019, 2018, and 2017 consists of the following (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2019 2018 2017 Current tax expense ​ $ 22,500 ​ $ 12,114 ​ $ 27,255 Deferred tax expense (1) ​ 15,057 ​ 17,902 ​ 5,535 Income tax expense ​ $ 37,557 ​ $ 30,016 ​ $ 32,790 (1) The deferred tax expense for the year ended December 31, 2017 includes the impact of the Tax Act.
Schedule of Income Tax Expense, Difference in Income Tax Rate to Pretax Income	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, 2019, 2018, and 2017, due to the following (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2019 2018 2017 Computed "expected" tax expense ​ $ 48,564 ​ $ 37,680 ​ $ 36,738 (Decrease) in taxes resulting from: ​ ​ ​ Tax-exempt interest income, net ​ (8,259) ​ (5,188) ​ (6,112) Valuation allowance adjustment ​ — ​ — ​ (2,982) Impact of the Tax Act ​ — ​ — ​ 6,105 State income tax benefit ​ ​ (1,078) ​ ​ (1,133) ​ ​ — Other, net ​ (1,670) ​ (1,343) ​ (959) Income tax expense ​ $ 37,557 ​ $ 30,016 ​ $ 32,790

EARNINGS PER SHARE (Tables)

EARNINGS PER SHARE (Tables)	12 Months Ended
	Dec. 31, 2019
Earnings Per Share [Abstract]
Reconciliation of the Denominators of the Basic and Diluted EPS Computations	The following table presents earnings per share 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): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2019 2018 2017 Net Income: ​ ​ ​ Income from continuing operations ​ $ 193,698 ​ $ 149,413 ​ $ 72,176 Income (loss) from discontinued operations ​ (170) ​ (3,165) ​ 747 Net income available to common shareholders ​ $ 193,528 ​ $ 146,248 ​ $ 72,923 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted average shares outstanding, basic ​ 80,201 ​ 65,859 ​ 43,699 Dilutive effect of stock awards and warrants ​ 63 ​ 50 ​ 81 Weighted average shares outstanding, diluted ​ 80,264 ​ 65,909 ​ 43,780 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Basic EPS: ​ ​ ​ EPS from continuing operations ​ $ 2.41 ​ $ 2.27 ​ $ 1.65 EPS from discontinued operations ​ ​ — ​ ​ (0.05) ​ ​ 0.02 EPS available to common shareholders ​ $ 2.41 ​ $ 2.22 ​ $ 1.67 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Diluted EPS: ​ ​ ​ EPS from continuing operations ​ $ 2.41 ​ $ 2.27 ​ $ 1.65 EPS from discontinued operations ​ ​ — ​ ​ (0.05) ​ ​ 0.02 EPS available to common shareholders ​ $ 2.41 ​ $ 2.22 ​ $ 1.67

SEGMENT REPORTING & DISCONTIN_2

SEGMENT REPORTING & DISCONTINUED OPERATIONS (Tables)	12 Months Ended
	Dec. 31, 2019
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, 2018 and 2017, respectively (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2019 2018 2017 Net interest income ​ $ — ​ $ 850 ​ $ 1,150 Provision for credit losses ​ — ​ (185) ​ (46) Net interest income after provision for credit losses ​ — ​ 1,035 ​ 1,196 Noninterest income ​ 1 ​ 3,882 ​ 9,245 Noninterest expenses ​ 231 ​ 9,197 ​ 9,097 Income before income taxes ​ (230) ​ (4,280) ​ 1,344 Income tax expense (benefit) ​ (60) ​ (1,115) ​ 597 Net income (loss) on discontinued operations ​ $ (170) ​ $ (3,165) ​ $ 747

PARENT COMPANY FINANCIAL INFO_2

PARENT COMPANY FINANCIAL INFORMATION (Tables) - Parent Company	12 Months Ended
	Dec. 31, 2019
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, 2019 and 2018 (Dollars in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ 2019 2018 ASSETS ​ ​ Cash ​ $ 5,283 ​ $ 3,681 Premises and equipment, net ​ 10,568 ​ 10,637 Other assets ​ 27,438 ​ 13,386 Investment in subsidiaries ​ 2,786,842 ​ 2,202,530 Total assets ​ $ 2,830,131 ​ $ 2,230,234 LIABILITIES AND STOCKHOLDERS' EQUITY ​ ​ Short-term borrowings ​ — ​ 5,000 Long-term borrowings ​ 157,155 ​ 157,057 Trust preferred capital notes ​ 140,237 ​ 134,342 Other liabilities ​ 19,637 ​ 9,254 Total liabilities ​ 317,029 ​ 305,653 Total stockholders' equity ​ 2,513,102 ​ 1,924,581 Total liabilities and stockholders' equity ​ $ 2,830,131 ​ $ 2,230,234
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, 2019, 2018, and 2017 (Dollars in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2019 2018 ​ 2017 Income: ​ ​ ​ Interest and dividend income ​ $ 3 ​ $ — ​ $ 3 Dividends received from subsidiaries ​ 160,033 ​ 50,750 ​ 33,350 Other operating income ​ 1,484 ​ 2,719 ​ 1,308 Total income ​ 161,520 ​ 53,469 ​ 34,661 Expenses: ​ ​ ​ Interest expense ​ 15,935 ​ 15,253 ​ 11,423 Other operating expenses ​ 11,434 ​ 13,782 ​ 7,130 Total expenses ​ 27,369 ​ 29,035 ​ 18,553 Income before income taxes and equity in undistributed net income from subsidiaries ​ 134,151 ​ 24,434 ​ 16,108 Income tax benefit ​ (6,499) ​ (6,176) ​ (9,169) Equity in undistributed net income from subsidiaries ​ 52,878 ​ 115,638 ​ 47,646 Net income ​ $ 193,528 ​ $ 146,248 ​ $ 72,923 Comprehensive income ​ $ 239,376 ​ $ 136,905 ​ $ 75,848
Financial Information for the Parent Company - Statements of Cash Flows	PARENT COMPANY CONDENSED STATEMENTS OF CASH FLOWS YEARS ENDED DECEMBER 31, 2019, 2018, and 2017 (Dollars in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2019 2018 2017 Operating activities: ​ ​ ​ Net income ​ $ 193,528 ​ $ 146,248 ​ $ 72,923 Adjustments to reconcile net income to net cash provided by operating activities: ​ ​ ​ Equity in undistributed net income of subsidiaries ​ (52,878) ​ (115,638) ​ (47,646) Depreciation of premises and equipment ​ 424 ​ 424 ​ 439 Acquisition accounting amortization, net ​ 662 ​ 636 ​ 260 Gain on sale of investment ​ — ​ (1,416) ​ — Issuance of common stock for services ​ 910 ​ 914 ​ 724 Net (increase) decrease in other assets ​ (3,256) ​ (584) ​ (4,167) Net increase in other liabilities ​ 4,964 ​ (4,159) ​ 5,283 Net cash and cash equivalents provided by (used in) operating activities ​ 144,354 ​ 26,425 ​ 27,816 Investing activities: ​ ​ ​ Net increase in premises and equipment ​ (355) ​ — ​ (35) Proceeds from sale of investment ​ — ​ 3,761 ​ — Proceeds from (payments for) equity method investment ​ — ​ — ​ 72 Cash paid in acquisitions ​ ​ (12) ​ ​ — ​ ​ — Cash received in acquisitions ​ 21,553 ​ 25,976 ​ — Net cash and cash equivalents provided by (used in) investing activities ​ 21,186 ​ 29,737 ​ 37 Financing activities: ​ ​ ​ Net increase (decrease) in short-term borrowings ​ (5,000) ​ 5,000 ​ — Cash dividends paid - common stock ​ (78,345) ​ (58,001) ​ (35,393) Cancellation of warrants ​ — ​ (1,530) ​ — Issuance (repurchase) of common stock ​ (78,292) ​ 2,347 ​ 1,037 Vesting of restricted stock, net of shares held for taxes ​ (2,301) ​ (2,908) ​ (1,567) Net cash and cash equivalents provided by (used in) financing activities ​ (163,938) ​ (55,092) ​ (35,923) Increase (decrease) in cash and cash equivalents ​ 1,602 ​ 1,070 ​ (8,070) Cash and cash equivalents at beginning of the period ​ 3,681 ​ 2,611 ​ 10,681 Cash and cash equivalents at end of the period ​ $ 5,283 ​ $ 3,681 ​ $ 2,611 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_4

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Narrative) (Details)	Apr. 30, 2019USD ($)	Dec. 31, 2005item	Dec. 31, 2019USD ($)item	Dec. 31, 2018USD ($)
Accounting Policies [Line Items]
Number of bank branches | item			149
Number of ATM's | item			170
Number of business acquisitions | item		2
Accruals for uncertain tax positions			$ 0	$ 0
Impairment charges for goodwill or intangible assets	$ 0		0
Goodwill			$ 935,560,000	$ 727,168,000
Commercial loans on nonaccrual status, period			90 days
Number of days past due to charge-off real estate secured loans			180 days
Federal Home Loan Bank requires Bank to maintain percentage of stock equal to outstanding borrowings			4.25%	4.25%
Percentage of Federal Reserve Bank of Richmond reserve			6.00%	6.00%
Future payments, contractual term			6 months
Period of independent appraisal or valuation			12 months
Liabilities for post retirement benefits payable to other beneficiaries			$ 12,100,000	$ 10,500,000
Minimum
Accounting Policies [Line Items]
Intangible assets, amortization period (years)			4 years
Period past due to change TDR status			30 days
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%
Tax position benefit recognition threshold			50.00%
Maximum
Accounting Policies [Line Items]
Intangible assets, amortization period (years)			10 years
Period past due to charge off consumer loans non-real estate secured			120 days
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%

SUMMARY OF SIGNIFICANT ACCOUN_5

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Affordable Housing Entities (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Affordable Housing Projects [Abstract]
Affordable housing projects, recognized amortization	$ 1,900,000	$ 922,000
Affordable housing projects, tax credits	2,900,000	1,100,000
Affordable housing projects, investment amount	29,600,000	10,800,000
Affordable housing projects, liability	$ 12,000,000	$ 9,900,000

SUMMARY OF SIGNIFICANT ACCOUN_6

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - New Accounting Standards (Narrative) (Details) - USD ($)	Dec. 31, 2019	Jan. 01, 2019	Dec. 31, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease, liability	$ 66,052,000
Operating lease, right-of-use asset	54,900,000
Accounting Standards Update 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease, liability		$ 53,200,000
Operating lease, right-of-use asset		$ 48,900,000
Accumulated Other Comprehensive Income (Loss)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effects from adoption of new accounting standards			$ (46,000)
Accumulated Other Comprehensive Income (Loss) | Accounting Standards Update 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effects from adoption of new accounting standards	$ (1,100,000)

ACQUISITIONS (Narrative) (Detai

ACQUISITIONS (Narrative) (Details) - USD ($)	Feb. 01, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Business Acquisition [Line Items]
Cash paid in acquisition		$ 12,000	$ 14,304,000	$ 231,000
Merger-related costs		27,824,000	39,728,000	5,393,000
Goodwill		935,560,000	727,168,000
Issuance of common stock in regard to acquisitions		499,974,000	794,809,000	$ 0
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	$ 499,974,000
Cash paid in acquisition	12,000
Merger-related costs		$ 26,200,000	$ 1,800,000
Goodwill	208,376,000
Minimum
Business Acquisition [Line Items]
Intangible assets, amortization period		4 years
Maximum
Business Acquisition [Line Items]
Intangible assets, amortization period		10 years
Performing | Access National Bank
Business Acquisition [Line Items]
Acquired performing loans, fair value	2,100,000,000
Contractually required principal and interest payments	2,500,000,000
Contractual cash flows not expected to be collected	17,900,000
Nonperforming | Access National Bank
Business Acquisition [Line Items]
Fair value of loans acquired with a deterioration of credit quality	33,307,000
Contractually required principal and interest payments	$ 44,429,000

ACQUISITIONS (Schedule of Busin

ACQUISITIONS (Schedule of Business Acquisition and the Amounts of Acquired Identifiable Assets and Liabilities) (Details) - USD ($)	Feb. 01, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Business Acquisition [Line Items]
Cash paid in acquisition		$ 12,000	$ 14,304,000	$ 231,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]
Goodwill		$ 935,560,000	$ 727,168,000
Access National Bank
Business Acquisition [Line Items]
Fair value of shares of the Company's common stock issued & warrants converted	$ 499,974,000
Cash paid in acquisition	12,000
Total purchase price	499,986,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities [Abstract]
Cash and cash equivalents	46,164,000
Investments	464,742,000
Loans	2,173,060,000
Premises and equipment	24,198,000
Core deposit intangibles	40,860,000
Other assets	100,649,000
Total assets	2,849,673,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]
Deposits	2,227,073,000
Short-term borrowings	220,685,000
Long-term borrowings	70,535,000
Other liabilities	39,770,000
Total liabilities	2,558,063,000
Net identifiable assets acquired	291,610,000
Goodwill	$ 208,376,000

ACQUISITIONS (Schedule of Acqui

ACQUISITIONS (Schedule of Acquired Impaired Loans Receivable) (Details) - Nonperforming - Access National Bank $ in Thousands	Feb. 01, 2019USD ($)
Business Combination, Separately Recognized Transactions [Line Items]
Contractually required principal and interest payments	$ 44,429
Nonaccretable difference	(6,062)
Cash flows expected to be collected	38,367
Accretable difference	(5,060)
Fair value of loans acquired with a deterioration of credit quality	$ 33,307

ACQUISITIONS (Business Acquisit

ACQUISITIONS (Business Acquisition, Pro Forma Information) (Details) - Access National Bank - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Business Acquisition [Line Items]
Total revenues	$ 681,306	$ 666,921	$ 468,840
Net income	$ 217,075	$ 185,698	$ 91,270
Earnings per share (in dollars per share)	$ 2.53	$ 2.28	$ 1.59

ACQUISITIONS (Schedule of Effec

ACQUISITIONS (Schedule of Effect of Amortization and Accretion Related to Acquisition) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Business Combinations [Abstract]
Loans	$ 24,846	$ 17,145	$ 6,784
Buildings	50	228	0
Core deposit intangibles	(16,755)	(11,464)	(5,603)
Other amortizable intangibles	(1,766)	(1,375)	(485)
Borrowings	(360)	(506)	170
Time deposits	833	2,553	0
Leases	1,051	130	0
Net impact to income before taxes	$ 7,899	$ 6,711	$ 866

SECURITIES (Narrative) (Details

SECURITIES (Narrative) (Details)	3 Months Ended	12 Months Ended
	Jun. 30, 2018USD ($)	Dec. 31, 2019USD ($)security	Dec. 31, 2018USD ($)security
Schedule of Investments [Line Items]
Available for sale securities that had been in a continuous loss position for more than 12 months		$ 75,000,000	$ 385,400,000
Available-for-sale securities, continuous unrealized loss position, 12 months or longer, accumulated loss		$ 696,000	$ 10,184,000
Federal Home Loan Bank requires Bank to maintain percentage of stock equal to outstanding borrowings		4.25%	4.25%
Percentage of Federal Reserve Bank of Richmond reserve		6.00%	6.00%
Restricted equity securities consist of Federal Reserve Bank stock		$ 67,000,000	$ 52,600,000
Federal Home Loan Bank Stock		63,900,000	72,000,000
Credit-related OTTI		$ 0	$ 0
Available-for-sale Securities
Schedule of Investments [Line Items]
Available for sale securities that had been in a continuous loss position | security		47	138
Accounting Standards Update 2017-12
Schedule of Investments [Line Items]
Available for sale debt securities, transfer, amount	$ 187,400,000

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, 2019	Dec. 31, 2018
Debt Securities, Available-for-sale Securities, Amortized Cost Basis [Abstract]
Total AFS securities, Amortized Cost	$ 1,893,427	$ 1,780,952
Gross Unrealized Gains	53,918	9,414
Gross Unrealized (Losses)	(1,900)	(15,545)
Total AFS securities, Estimated Fair Value	1,945,445	1,774,821
U.S. government and agency securities
Debt Securities, Available-for-sale Securities, Amortized Cost Basis [Abstract]
Total AFS securities, Amortized Cost	4,487
Gross Unrealized Gains	11
Gross Unrealized (Losses)	0
Total AFS securities, Estimated Fair Value	4,498
Obligations of states and political subdivisions
Debt Securities, Available-for-sale Securities, Amortized Cost Basis [Abstract]
Total AFS securities, Amortized Cost	417,397	466,588
Gross Unrealized Gains	25,624	3,844
Gross Unrealized (Losses)	(29)	(1,941)
Total AFS securities, Estimated Fair Value	442,992	468,491
Corporate and other bonds
Debt Securities, Available-for-sale Securities, Amortized Cost Basis [Abstract]
Total AFS securities, Amortized Cost	259,213	167,561
Gross Unrealized Gains	4,403	1,118
Gross Unrealized (Losses)	(546)	(983)
Total AFS securities, Estimated Fair Value	263,070	167,696
Mortgage-backed securities
Debt Securities, Available-for-sale Securities, Amortized Cost Basis [Abstract]
Total AFS securities, Amortized Cost	1,209,251	1,138,034
Gross Unrealized Gains	23,880	4,452
Gross Unrealized (Losses)	(1,325)	(12,621)
Total AFS securities, Estimated Fair Value	1,231,806	1,129,865
Other securities
Debt Securities, Available-for-sale Securities, Amortized Cost Basis [Abstract]
Total AFS securities, Amortized Cost	3,079	8,769
Gross Unrealized Gains	0	0
Gross Unrealized (Losses)	0	0
Total AFS securities, Estimated Fair Value	$ 3,079	$ 8,769

SECURITIES (Schedule of Gross U

SECURITIES (Schedule of Gross Unrealized Losses and Fair Value of Investments) (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Debt and Equity Securities, FV-NI [Line Items]
Less than 12 months, Fair Value	$ 198,348,000	$ 475,029,000
Less than 12 Months, Unrealized Losses	(1,204,000)	(5,361,000)
More than 12 Months, Fair Value	75,035,000	385,433,000
More than 12 Months, Unrealized Losses	(696,000)	(10,184,000)
Total, Fair Value	273,383,000	860,462,000
Unrealized Losses, Total	(1,900,000)	(15,545,000)
Obligations of states and political subdivisions
Debt and Equity Securities, FV-NI [Line Items]
Less than 12 months, Fair Value	4,526,000	133,513,000
Less than 12 Months, Unrealized Losses	(29,000)	(1,566,000)
More than 12 Months, Fair Value	0	10,145,000
More than 12 Months, Unrealized Losses	0	(375,000)
Total, Fair Value	4,526,000	143,658,000
Unrealized Losses, Total	(29,000)	(1,941,000)
Corporate and other bonds
Debt and Equity Securities, FV-NI [Line Items]
Less than 12 months, Fair Value	44,567,000	35,478,000
Less than 12 Months, Unrealized Losses	(255,000)	(315,000)
More than 12 Months, Fair Value	19,902,000	33,888,000
More than 12 Months, Unrealized Losses	(291,000)	(668,000)
Total, Fair Value	64,469,000	69,366,000
Unrealized Losses, Total	(546,000)	(983,000)
Mortgage-backed securities
Debt and Equity Securities, FV-NI [Line Items]
Less than 12 months, Fair Value	149,255,000	306,038,000
Less than 12 Months, Unrealized Losses	(920,000)	(3,480,000)
More than 12 Months, Fair Value	55,133,000	341,400,000
More than 12 Months, Unrealized Losses	(405,000)	(9,141,000)
Total, Fair Value	204,388,000	647,438,000
Unrealized Losses, Total	$ (1,325,000)	$ (12,621,000)

SECURITIES (Schedule of Amortiz

SECURITIES (Schedule of Amortized Cost and Estimated Fair Value of Securities) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
AFS Securities [Abstract]
Due in one year or less, Amortized Cost	$ 35,046	$ 22,653
Due in one year or less, Estimated Fair Value	35,197	22,789
Due after one year through five years, Amortized Cost	164,605	191,003
Due after one year through five years, Estimated Fair Value	166,873	188,999
Due after five years through ten years, Amortized Cost	249,712	218,211
Due after five years through ten years, Estimated Fair Value	254,790	217,304
Due after ten years, Amortized Cost	1,444,064	1,349,085
Due after ten years, Estimated Fair Value	1,488,585	1,345,729
Total AFS securities, Amortized Cost	1,893,427	1,780,952
Total AFS securities, Estimated Fair Value	1,945,445	1,774,821
HTM Securities [Abstract]
Due in one year or less, Carrying Value	502	0
Due in one year or less, Estimated Fair Value	504	0
Due after one year through five years, Carrying Value	10,258	3,893
Due after one year through five years, Estimated Fair Value	10,539	3,900
Due after five years through ten years, Carrying Value	1,768	3,480
Due after five years through ten years, Estimated Fair Value	1,800	3,507
Due after ten years, Carrying Value	542,616	484,899
Due after ten years, Estimated Fair Value	590,660	492,094
Held-to-maturity Securities, Total	555,144	492,272
Total securities held to maturity, Estimated Fair Value	$ 603,503	$ 499,501

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, 2019	Dec. 31, 2018
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity Securities, Total	$ 555,144	$ 492,272
Gross Unrealized Gains	48,359
Gross Unrealized Losses	0
Held-to-maturity Securities, Fair Value	603,503	499,501
Obligations of states and political subdivisions
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity Securities, Total	545,148	492,272
Gross Unrealized Gains	48,274	7,375
Gross Unrealized Losses	0	(146)
Held-to-maturity Securities, Fair Value	593,422	$ 499,501
Mortgage-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity Securities, Total	9,996
Gross Unrealized Gains	85
Gross Unrealized Losses	0
Held-to-maturity Securities, Fair Value	$ 10,081

SECURITIES (Gross Unrealized Lo

SECURITIES (Gross Unrealized Losses and Fair Value of Securities) (Details) - Obligations of states and political subdivisions - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Schedule of Held-to-maturity Securities [Line Items]
Less than 12 months, Fair Value	$ 0	$ 43,206
Less than 12 months, Unrealized Losses	0	(146)
More than 12 months, Fair Value	0	0
More than 12 months, Unrealized Losses	0	0
Fair Value, Total	0	43,206
Unrealized Losses, Total	$ 0	$ (146)

SECURITIES (Gross Realized Gain

SECURITIES (Gross Realized Gains and Losses on the Sale of Securities) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Investments, Debt and Equity Securities [Abstract]
Gross realized gains	$ 9,530	$ 4,221	$ 1,170
Gross realized losses	(1,855)	(3,838)	(370)
Gains on securities transactions, net	7,675	383	800
Proceeds from sales of securities	$ 514,070	$ 515,764	$ 139,046

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, 2019	Dec. 31, 2018
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment, net of deferred fees and costs	$ 12,610,936	$ 9,716,207
Construction and Land Development
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment, net of deferred fees and costs	1,250,924	1,194,821
Commercial Real Estate - Owner Occupied
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment, net of deferred fees and costs	2,041,243	1,337,345
Commercial Real Estate - Non-Owner Occupied
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment, net of deferred fees and costs	3,286,098	2,467,410
Multifamily Real Estate
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment, net of deferred fees and costs	633,743	548,231
Commercial and Industrial
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment, net of deferred fees and costs	2,114,033	1,317,135
Residential 1-4 Family - Commercial
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment, net of deferred fees and costs	724,337	640,419
Residential 1-4 Family - Consumer
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment, net of deferred fees and costs	890,503	673,909
Residential 1-4 Family - Revolving
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment, net of deferred fees and costs	659,504	613,383
Auto
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment, net of deferred fees and costs	350,419	301,943
Consumer
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment, net of deferred fees and costs	372,853	379,694
Other Commercial
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment, net of deferred fees and costs	$ 287,279	$ 241,917

LOANS AND ALLOWANCE FOR LOAN _4

LOANS AND ALLOWANCE FOR LOAN LOSSES (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	$ 28,232	$ 26,953	$ 21,700
Nonaccrual interest lost	$ 1,800	2,300	$ 698
Period for restructured loan to be considered default	90 days
Acquired performing loan portfolio	$ 12,610,936	9,716,207
Acquired Performing Loan Portfolio
Accounts, Notes, Loans and Financing Receivable [Line Items]
Acquired performing loan portfolio	3,000,000	2,000,000
Remaining discount on acquired loans	50,100	30,300
Purchased Impaired
Accounts, Notes, Loans and Financing Receivable [Line Items]
Acquired performing loan portfolio	86,681	90,221
Purchased impaired loans (gross)	$ 104,900	$ 113,500

LOANS AND ALLOWANCE FOR LOAN _5

LOANS AND ALLOWANCE FOR LOAN LOSSES (Summary of Aging of the Loan Portfolio by Segment) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Financing Receivable, Recorded Investment, Past Due [Line Items]
Greater Than 90 Days and Still Accruing	$ 13,396	$ 8,856
Total Loans	12,610,936	9,716,207
Nonaccrual	28,232	26,953	$ 21,700
Current	12,419,378	9,537,156
30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	50,453	41,434
60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	12,796	11,587
Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	86,681	90,221
Current	70,267	71,213
Construction and Land Development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Greater Than 90 Days and Still Accruing	189	180
Total Loans	1,250,924	1,194,821
Nonaccrual	3,703	8,018
Current	1,231,043	1,177,204
Construction and Land Development | 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	4,563	759
Construction and Land Development | 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	482	6
Construction and Land Development | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	10,944	8,654
Current	10,465	7,122
Commercial Real Estate - Owner Occupied
Financing Receivable, Recorded Investment, Past Due [Line Items]
Greater Than 90 Days and Still Accruing	1,062	3,193
Total Loans	2,041,243	1,337,345
Nonaccrual	6,003	3,636
Current	2,001,074	1,294,975
Commercial Real Estate - Owner Occupied | 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	3,482	8,755
Commercial Real Estate - Owner Occupied | 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	2,184	1,142
Commercial Real Estate - Owner Occupied | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	27,438	25,644
Current	20,074	20,705
Commercial Real Estate - Non-Owner Occupied
Financing Receivable, Recorded Investment, Past Due [Line Items]
Greater Than 90 Days and Still Accruing	1,451	0
Total Loans	3,286,098	2,467,410
Nonaccrual	381	1,789
Current	3,269,244	2,447,907
Commercial Real Estate - Non-Owner Occupied | 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	457	338
Commercial Real Estate - Non-Owner Occupied | 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	41
Commercial Real Estate - Non-Owner Occupied | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	14,565	17,335
Current	12,730	15,464
Multifamily Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Greater Than 90 Days and Still Accruing	474	0
Total Loans	633,743	548,231
Nonaccrual	0	0
Current	632,952	547,997
Multifamily Real Estate | 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	223	0
Multifamily Real Estate | 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	146
Multifamily Real Estate | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	94	88
Current	94	88
Commercial and Industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Greater Than 90 Days and Still Accruing	449	132
Total Loans	2,114,033	1,317,135
Nonaccrual	1,735	1,524
Current	2,099,974	1,309,581
Commercial and Industrial | 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	8,698	3,353
Commercial and Industrial | 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	1,598	389
Commercial and Industrial | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	1,579	2,156
Current	590	1,017
Residential 1-4 Family - Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Greater Than 90 Days and Still Accruing	674	1,409
Total Loans	724,337	640,419
Nonaccrual	4,301	2,481
Current	703,471	614,732
Residential 1-4 Family - Commercial | 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	1,479	6,619
Residential 1-4 Family - Commercial | 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	2,207	1,577
Residential 1-4 Family - Commercial | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	12,205	13,601
Current	9,667	9,276
Residential 1-4 Family - Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Greater Than 90 Days and Still Accruing	4,515	2,437
Total Loans	890,503	673,909
Nonaccrual	9,292	7,276
Current	842,667	630,132
Residential 1-4 Family - Consumer | 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	16,244	12,049
Residential 1-4 Family - Consumer | 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	3,072	5,143
Residential 1-4 Family - Consumer | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	14,713	16,872
Current	12,005	12,491
Residential 1-4 Family - Revolving
Financing Receivable, Recorded Investment, Past Due [Line Items]
Greater Than 90 Days and Still Accruing	3,357	440
Total Loans	659,504	613,383
Nonaccrual	2,080	1,518
Current	637,966	600,055
Residential 1-4 Family - Revolving | 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	10,190	4,611
Residential 1-4 Family - Revolving | 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	1,784	1,644
Residential 1-4 Family - Revolving | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	4,127	5,115
Current	3,635	4,365
Auto
Financing Receivable, Recorded Investment, Past Due [Line Items]
Greater Than 90 Days and Still Accruing	272	195
Total Loans	350,419	301,943
Nonaccrual	563	576
Current	346,819	297,442
Auto | 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	2,525	3,320
Auto | 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	236	403
Auto | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	4	7
Current	4	7
Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Greater Than 90 Days and Still Accruing	953	870
Total Loans	372,853	379,694
Nonaccrual	77	135
Current	367,794	376,057
Consumer | 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	2,128	1,504
Consumer | 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	1,233	1,096
Consumer | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	668	32
Current	659	18
Other Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Greater Than 90 Days and Still Accruing	0	0
Total Loans	287,279	241,917
Nonaccrual	97	0
Current	286,374	241,074
Other Commercial | 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	464	126
Other Commercial | 60 to 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]
Total Loans	344	717
Current	$ 344	$ 660

LOANS AND ALLOWANCE FOR LOAN _6

LOANS AND ALLOWANCE FOR LOAN LOSSES (PCI Loan Portfolios by Segment and Delinquency Status) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	$ 12,419,378	$ 9,537,156
Total Loans	12,610,936	9,716,207
Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	70,267	71,213
Total Loans	86,681	90,221
Construction and Land Development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	1,231,043	1,177,204
Total Loans	1,250,924	1,194,821
Construction and Land Development | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	10,465	7,122
Total Loans	10,944	8,654
Commercial Real Estate - Owner Occupied
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	2,001,074	1,294,975
Total Loans	2,041,243	1,337,345
Commercial Real Estate - Owner Occupied | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	20,074	20,705
Total Loans	27,438	25,644
Commercial Real Estate - Non-Owner Occupied
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	3,269,244	2,447,907
Total Loans	3,286,098	2,467,410
Commercial Real Estate - Non-Owner Occupied | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	12,730	15,464
Total Loans	14,565	17,335
Multifamily Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	632,952	547,997
Total Loans	633,743	548,231
Multifamily Real Estate | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	94	88
Total Loans	94	88
Commercial and Industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	2,099,974	1,309,581
Total Loans	2,114,033	1,317,135
Commercial and Industrial | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	590	1,017
Total Loans	1,579	2,156
Residential 1-4 Family - Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	703,471	614,732
Total Loans	724,337	640,419
Residential 1-4 Family - Commercial | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	9,667	9,276
Total Loans	12,205	13,601
Residential 1-4 Family - Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	842,667	630,132
Total Loans	890,503	673,909
Residential 1-4 Family - Consumer | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	12,005	12,491
Total Loans	14,713	16,872
Residential 1-4 Family - Revolving
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	637,966	600,055
Total Loans	659,504	613,383
Residential 1-4 Family - Revolving | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	3,635	4,365
Total Loans	4,127	5,115
Auto
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	346,819	297,442
Total Loans	350,419	301,943
Auto | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	4	7
Total Loans	4	7
Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	367,794	376,057
Total Loans	372,853	379,694
Consumer | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	659	18
Total Loans	668	32
Other Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	286,374	241,074
Total Loans	287,279	241,917
Other Commercial | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	344	660
Total Loans	344	717
30 To 89 Days Past Due | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	3,221	4,264
30 To 89 Days Past Due | Construction and Land Development | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	136	108
30 To 89 Days Past Due | Commercial Real Estate - Owner Occupied | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	480	658
30 To 89 Days Past Due | Commercial Real Estate - Non-Owner Occupied | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	848	61
30 To 89 Days Past Due | Multifamily Real Estate | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
30 To 89 Days Past Due | Commercial and Industrial | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	47
30 To 89 Days Past Due | Residential 1-4 Family - Commercial | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	543	871
30 To 89 Days Past Due | Residential 1-4 Family - Consumer | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	927	1,959
30 To 89 Days Past Due | Residential 1-4 Family - Revolving | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	287	498
30 To 89 Days Past Due | Auto | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
30 To 89 Days Past Due | Consumer | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	5
30 To 89 Days Past Due | Other Commercial | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	57
Greater Than 90 Days | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	13,193	14,744
Greater Than 90 Days | Construction and Land Development | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	343	1,424
Greater Than 90 Days | Commercial Real Estate - Owner Occupied | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	6,884	4,281
Greater Than 90 Days | Commercial Real Estate - Non-Owner Occupied | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	987	1,810
Greater Than 90 Days | Multifamily Real Estate | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
Greater Than 90 Days | Commercial and Industrial | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	989	1,092
Greater Than 90 Days | Residential 1-4 Family - Commercial | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	1,995	3,454
Greater Than 90 Days | Residential 1-4 Family - Consumer | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	1,781	2,422
Greater Than 90 Days | Residential 1-4 Family - Revolving | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	205	252
Greater Than 90 Days | Auto | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
Greater Than 90 Days | Consumer | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	9	9
Greater Than 90 Days | Other Commercial | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	$ 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	Dec. 31, 2017
Recorded Investment
Loans without a specific allowance	$ 35,185	$ 42,991
Loans with a specific allowance	23,938	16,237
Total impaired loans	59,123	59,228
Unpaid Principal Balance
Loans without a specific allowance	38,655	46,890
Loans with a specific allowance	25,738	17,662
Total impaired loans	64,393	64,552
Related Allowance	3,027	2,217
Average Investment	62,158	63,077	$ 54,233
Interest Income Recognized	1,425	1,702	1,693
Construction and Land Development
Recorded Investment
Loans without a specific allowance	5,877	10,290
Loans with a specific allowance	984	372
Unpaid Principal Balance
Loans without a specific allowance	7,174	12,038
Loans with a specific allowance	1,032	491
Related Allowance	49	63
Average Investment	6,764	11,648	17,080
Interest Income Recognized	110	234	590
Commercial Real Estate - Owner Occupied
Recorded Investment
Loans without a specific allowance	8,801	8,386
Loans with a specific allowance	2,820	4,304
Unpaid Principal Balance
Loans without a specific allowance	9,296	9,067
Loans with a specific allowance	3,093	4,437
Related Allowance	146	359
Average Investment	12,258	13,383	6,580
Interest Income Recognized	323	499	306
Commercial Real Estate - Non-Owner Occupied
Recorded Investment
Loans without a specific allowance	3,510	6,578
Loans with a specific allowance	335	391
Unpaid Principal Balance
Loans without a specific allowance	4,059	6,929
Loans with a specific allowance	383	391
Related Allowance	2	1
Average Investment	4,775	7,157	6,083
Interest Income Recognized	147	246	172
Commercial and Industrial
Recorded Investment
Loans without a specific allowance	3,668	3,059
Loans with a specific allowance	2,568	1,183
Unpaid Principal Balance
Loans without a specific allowance	3,933	3,251
Loans with a specific allowance	2,590	1,442
Related Allowance	619	752
Average Investment	6,438	4,672	3,208
Interest Income Recognized	293	232	150
Residential 1-4 Family - Commercial
Recorded Investment
Loans without a specific allowance	4,047	3,378
Loans with a specific allowance	1,726	2,120
Unpaid Principal Balance
Loans without a specific allowance	4,310	3,439
Loans with a specific allowance	1,819	2,152
Related Allowance	162	89
Average Investment	6,145	5,667	4,422
Interest Income Recognized	120	180	162
Residential 1-4 Family - Consumer
Recorded Investment
Loans without a specific allowance	8,420	9,642
Loans with a specific allowance	12,026	6,389
Unpaid Principal Balance
Loans without a specific allowance	9,018	10,317
Loans with a specific allowance	12,670	6,645
Related Allowance	1,242	470
Average Investment	20,963	16,977	12,812
Interest Income Recognized	308	236	222
Residential 1-4 Family - Revolving
Recorded Investment
Loans without a specific allowance	862	1,150
Loans with a specific allowance	2,186	724
Unpaid Principal Balance
Loans without a specific allowance	865	1,269
Loans with a specific allowance	2,369	807
Related Allowance	510	188
Average Investment	3,256	2,000	2,659
Interest Income Recognized	82	23	36
Auto
Recorded Investment
Loans with a specific allowance	563	576
Unpaid Principal Balance
Loans with a specific allowance	879	830
Related Allowance	221	231
Average Investment	788	824	579
Interest Income Recognized	15	20	19
Consumer
Recorded Investment
Loans without a specific allowance	0	30
Loans with a specific allowance	168	178
Unpaid Principal Balance
Loans without a specific allowance	0	102
Loans with a specific allowance	336	467
Related Allowance	46	64
Average Investment	187	263	428
Interest Income Recognized	5	5	14
Other Commercial
Recorded Investment
Loans without a specific allowance	0	478
Loans with a specific allowance	562	0
Unpaid Principal Balance
Loans without a specific allowance	0	478
Loans with a specific allowance	567	0
Related Allowance	30	0
Average Investment	584	486	382
Interest Income Recognized	$ 22	$ 27	$ 22

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, 2019USD ($)loan	Dec. 31, 2018USD ($)loan
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	120	114
Recorded Investment	$ 19,496	$ 26,598
Outstanding Commitment	$ 26	$ 0
Performing
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	96	85
Recorded Investment	$ 15,686	$ 19,201
Outstanding Commitment	$ 26	$ 0
Performing | Construction and Land Development
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	4	5
Recorded Investment	$ 1,114	$ 2,496
Outstanding Commitment	$ 0	$ 0
Performing | Commercial Real Estate - Owner Occupied
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	6	8
Recorded Investment	$ 2,228	$ 2,783
Outstanding Commitment	$ 26	$ 0
Performing | Commercial Real Estate - Non-Owner Occupied
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	1	4
Recorded Investment	$ 1,089	$ 4,438
Outstanding Commitment	$ 0	$ 0
Performing | Commercial and Industrial
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	4	4
Recorded Investment	$ 1,020	$ 978
Outstanding Commitment	$ 0	$ 0
Performing | Residential 1-4 Family - Commercial
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	5	8
Recorded Investment	$ 290	$ 1,075
Outstanding Commitment	$ 0	$ 0
Performing | Residential 1-4 Family - Consumer
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	69	52
Recorded Investment	$ 9,396	$ 6,882
Outstanding Commitment	$ 0	$ 0
Performing | Residential 1-4 Family - Revolving
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	2	2
Recorded Investment	$ 56	$ 58
Outstanding Commitment	$ 0	$ 0
Performing | Consumer
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	4	1
Recorded Investment	$ 29	$ 13
Outstanding Commitment	$ 0	$ 0
Performing | Other Commercial
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	1	1
Recorded Investment	$ 464	$ 478
Outstanding Commitment	$ 0	$ 0
Nonperforming
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	24	29
Recorded Investment	$ 3,810	$ 7,397
Outstanding Commitment	$ 0	$ 0
Nonperforming | Construction and Land Development
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	0	2
Recorded Investment	$ 0	$ 3,474
Outstanding Commitment	$ 0	$ 0
Nonperforming | Commercial Real Estate - Owner Occupied
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	2	2
Recorded Investment	$ 176	$ 198
Outstanding Commitment	$ 0	$ 0
Nonperforming | Commercial and Industrial
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	1	6
Recorded Investment	$ 55	$ 461
Outstanding Commitment	$ 0	$ 0
Nonperforming | Residential 1-4 Family - Commercial
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	0	1
Recorded Investment	$ 0	$ 60
Outstanding Commitment	$ 0	$ 0
Nonperforming | Residential 1-4 Family - Consumer
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	19	15
Recorded Investment	$ 3,522	$ 3,135
Outstanding Commitment	$ 0	$ 0
Nonperforming | Residential 1-4 Family - Revolving
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	2	2
Recorded Investment	$ 57	$ 62
Outstanding Commitment	$ 0	$ 0
Nonperforming | Consumer
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	0	1
Recorded Investment	$ 0	$ 7
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, 2019USD ($)loan	Dec. 31, 2018USD ($)loan
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	38	47
Recorded Investment at Period End | $	$ 5,016	$ 14,502
Term modification, at a market rate
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	12	24
Recorded Investment at Period End | $	$ 2,160	$ 8,626
Term modification, below market rate
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	26	22
Recorded Investment at Period End | $	$ 2,856	$ 5,611
Interest rate modification, below market rate
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	0	1
Recorded Investment at Period End | $	$ 0	$ 265
Modified to interest only, at a market rate
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	0	0
Recorded Investment at Period End | $	$ 0	$ 0
Construction and Land Development | Term modification, at a market rate
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	0	4
Recorded Investment at Period End | $	$ 0	$ 4,675
Construction and Land Development | Term modification, below market rate
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	3	0
Recorded Investment at Period End | $	$ 193	$ 0
Commercial Real Estate - Owner Occupied | Term modification, at a market rate
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	0	5
Recorded Investment at Period End | $	$ 0	$ 1,365
Commercial Real Estate - Non-Owner Occupied | Term modification, at a market rate
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	0	1
Recorded Investment at Period End | $	$ 0	$ 1,089
Commercial Real Estate - Non-Owner Occupied | Term modification, below market rate
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	0	1
Recorded Investment at Period End | $	$ 0	$ 2,782
Commercial and Industrial | Term modification, at a market rate
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	1	3
Recorded Investment at Period End | $	$ 376	$ 334
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 | $	$ 72	$ 71
Residential 1-4 Family - Commercial | Interest rate modification, below market rate
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	0	1
Recorded Investment at Period End | $	$ 0	$ 265
Residential 1-4 Family - Consumer | Term modification, at a market rate
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	7	9
Recorded Investment at Period End | $	$ 1,688	$ 1,079
Residential 1-4 Family - Consumer | Term modification, below market rate
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	22	19
Recorded Investment at Period End | $	$ 2,658	$ 2,783
Residential 1-4 Family - Revolving | Term modification, below market rate
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	0	2
Recorded Investment at Period End | $	$ 0	$ 46
Consumer | Term modification, at a market rate
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	3	1
Recorded Investment at Period End | $	$ 24	$ 13
Consumer | Term modification, below market rate
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	1	0
Recorded Investment at Period End | $	$ 5	$ 0

LOANS AND ALLOWANCE FOR LOAN_10

LOANS AND ALLOWANCE FOR LOAN LOSSES (Loans Receivables Related Risk Rating Excluding Purchased Impaired Loans) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Financing Receivable, Recorded Investment [Line Items]
Total Loans	$ 12,610,936	$ 9,716,207
Construction and Land Development
Financing Receivable, Recorded Investment [Line Items]
Total Loans	1,250,924	1,194,821
Commercial Real Estate - Owner Occupied
Financing Receivable, Recorded Investment [Line Items]
Total Loans	2,041,243	1,337,345
Commercial Real Estate - Non-Owner Occupied
Financing Receivable, Recorded Investment [Line Items]
Total Loans	3,286,098	2,467,410
Multifamily Real Estate
Financing Receivable, Recorded Investment [Line Items]
Total Loans	633,743	548,231
Commercial and Industrial
Financing Receivable, Recorded Investment [Line Items]
Total Loans	2,114,033	1,317,135
Residential 1-4 Family - Commercial
Financing Receivable, Recorded Investment [Line Items]
Total Loans	724,337	640,419
Residential 1-4 Family - Consumer
Financing Receivable, Recorded Investment [Line Items]
Total Loans	890,503	673,909
Residential 1-4 Family - Revolving
Financing Receivable, Recorded Investment [Line Items]
Total Loans	659,504	613,383
Auto
Financing Receivable, Recorded Investment [Line Items]
Total Loans	350,419	301,943
Consumer
Financing Receivable, Recorded Investment [Line Items]
Total Loans	372,853	379,694
Other Commercial
Financing Receivable, Recorded Investment [Line Items]
Total Loans	287,279	241,917
Excluding Purchased Impaired
Financing Receivable, Recorded Investment [Line Items]
Total Loans	12,524,255	9,625,986
Excluding Purchased Impaired | Pass
Financing Receivable, Recorded Investment [Line Items]
Total Loans	12,142,328	9,344,002
Excluding Purchased Impaired | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total Loans	316,317	201,174
Excluding Purchased Impaired | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total Loans	65,252	80,810
Excluding Purchased Impaired | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total Loans	358	0
Excluding Purchased Impaired | Construction and Land Development
Financing Receivable, Recorded Investment [Line Items]
Total Loans	1,239,980	1,186,167
Excluding Purchased Impaired | Construction and Land Development | Pass
Financing Receivable, Recorded Investment [Line Items]
Total Loans	1,197,066	1,130,577
Excluding Purchased Impaired | Construction and Land Development | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total Loans	37,182	43,894
Excluding Purchased Impaired | Construction and Land Development | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total Loans	5,732	11,696
Excluding Purchased Impaired | Construction and Land Development | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total Loans	0	0
Excluding Purchased Impaired | Commercial Real Estate - Owner Occupied
Financing Receivable, Recorded Investment [Line Items]
Total Loans	2,013,805	1,311,701
Excluding Purchased Impaired | Commercial Real Estate - Owner Occupied | Pass
Financing Receivable, Recorded Investment [Line Items]
Total Loans	1,916,492	1,231,422
Excluding Purchased Impaired | Commercial Real Estate - Owner Occupied | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total Loans	87,004	50,939
Excluding Purchased Impaired | Commercial Real Estate - Owner Occupied | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total Loans	10,309	29,340
Excluding Purchased Impaired | Commercial Real Estate - Owner Occupied | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total Loans	0	0
Excluding Purchased Impaired | Commercial Real Estate - Non-Owner Occupied
Financing Receivable, Recorded Investment [Line Items]
Total Loans	3,271,533	2,450,075
Excluding Purchased Impaired | Commercial Real Estate - Non-Owner Occupied | Pass
Financing Receivable, Recorded Investment [Line Items]
Total Loans	3,205,463	2,425,500
Excluding Purchased Impaired | Commercial Real Estate - Non-Owner Occupied | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total Loans	62,368	17,648
Excluding Purchased Impaired | Commercial Real Estate - Non-Owner Occupied | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total Loans	3,608	6,927
Excluding Purchased Impaired | Commercial Real Estate - Non-Owner Occupied | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total Loans	94	0
Excluding Purchased Impaired | Multifamily Real Estate
Financing Receivable, Recorded Investment [Line Items]
Total Loans	633,649	548,143
Excluding Purchased Impaired | Multifamily Real Estate | Pass
Financing Receivable, Recorded Investment [Line Items]
Total Loans	613,844	537,572
Excluding Purchased Impaired | Multifamily Real Estate | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total Loans	19,396	10,571
Excluding Purchased Impaired | Multifamily Real Estate | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total Loans	409	0
Excluding Purchased Impaired | Multifamily Real Estate | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total Loans	0	0
Excluding Purchased Impaired | Commercial and Industrial
Financing Receivable, Recorded Investment [Line Items]
Total Loans	2,112,454	1,314,979
Excluding Purchased Impaired | Commercial and Industrial | Pass
Financing Receivable, Recorded Investment [Line Items]
Total Loans	2,043,903	1,273,549
Excluding Purchased Impaired | Commercial and Industrial | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total Loans	60,495	34,864
Excluding Purchased Impaired | Commercial and Industrial | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total Loans	8,048	6,566
Excluding Purchased Impaired | Commercial and Industrial | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total Loans	8	0
Excluding Purchased Impaired | Residential 1-4 Family - Commercial
Financing Receivable, Recorded Investment [Line Items]
Total Loans	712,132	626,818
Excluding Purchased Impaired | Residential 1-4 Family - Commercial | Pass
Financing Receivable, Recorded Investment [Line Items]
Total Loans	680,894	606,955
Excluding Purchased Impaired | Residential 1-4 Family - Commercial | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total Loans	24,864	14,876
Excluding Purchased Impaired | Residential 1-4 Family - Commercial | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total Loans	6,374	4,987
Excluding Purchased Impaired | Residential 1-4 Family - Commercial | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total Loans	0	0
Excluding Purchased Impaired | Residential 1-4 Family - Consumer
Financing Receivable, Recorded Investment [Line Items]
Total Loans	875,790	657,037
Excluding Purchased Impaired | Residential 1-4 Family - Consumer | Pass
Financing Receivable, Recorded Investment [Line Items]
Total Loans	841,408	624,346
Excluding Purchased Impaired | Residential 1-4 Family - Consumer | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total Loans	13,592	17,065
Excluding Purchased Impaired | Residential 1-4 Family - Consumer | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total Loans	20,534	15,626
Excluding Purchased Impaired | Residential 1-4 Family - Consumer | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total Loans	256	0
Excluding Purchased Impaired | Residential 1-4 Family - Revolving
Financing Receivable, Recorded Investment [Line Items]
Total Loans	655,377	608,268
Excluding Purchased Impaired | Residential 1-4 Family - Revolving | Pass
Financing Receivable, Recorded Investment [Line Items]
Total Loans	641,069	598,444
Excluding Purchased Impaired | Residential 1-4 Family - Revolving | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total Loans	6,373	6,316
Excluding Purchased Impaired | Residential 1-4 Family - Revolving | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total Loans	7,935	3,508
Excluding Purchased Impaired | Residential 1-4 Family - Revolving | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total Loans	0	0
Excluding Purchased Impaired | Auto
Financing Receivable, Recorded Investment [Line Items]
Total Loans	350,415	301,936
Excluding Purchased Impaired | Auto | Pass
Financing Receivable, Recorded Investment [Line Items]
Total Loans	345,960	296,907
Excluding Purchased Impaired | Auto | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total Loans	2,630	3,590
Excluding Purchased Impaired | Auto | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total Loans	1,825	1,439
Excluding Purchased Impaired | Auto | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total Loans	0	0
Excluding Purchased Impaired | Consumer
Financing Receivable, Recorded Investment [Line Items]
Total Loans	372,185	379,662
Excluding Purchased Impaired | Consumer | Pass
Financing Receivable, Recorded Investment [Line Items]
Total Loans	371,315	378,873
Excluding Purchased Impaired | Consumer | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total Loans	550	547
Excluding Purchased Impaired | Consumer | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total Loans	320	242
Excluding Purchased Impaired | Consumer | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total Loans	0	0
Excluding Purchased Impaired | Other Commercial
Financing Receivable, Recorded Investment [Line Items]
Total Loans	286,935	241,200
Excluding Purchased Impaired | Other Commercial | Pass
Financing Receivable, Recorded Investment [Line Items]
Total Loans	284,914	239,857
Excluding Purchased Impaired | Other Commercial | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total Loans	1,863	864
Excluding Purchased Impaired | Other Commercial | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total Loans	158	479
Excluding Purchased Impaired | Other Commercial | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total Loans	$ 0	$ 0

LOANS AND ALLOWANCE FOR LOAN_11

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, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2019	Dec. 31, 2018
Allowance for loan losses:
Balance, beginning of the year	$ 41,045	$ 38,208	$ 37,192
Recoveries credited to allowance	7,232	5,168	3,255
Loans charged off	(28,108)	(16,230)	(13,310)
Provision charged to operations	22,125	13,899	11,071
Balance, end of period	42,294	41,045	38,208
Loans:
Loans individually evaluated for impairment				$ 59,123	$ 59,228
ALL individually evaluated for impairment				3,027	2,217
Loans collectively evaluated for impairment				12,465,132	9,566,758
ALL collectively evaluated for impairment				39,050	38,828
Total Loans				12,610,936	9,716,207
Total ALL	42,294	38,208	38,208	42,294	41,045
Purchased Impaired
Allowance for loan losses:
Balance, beginning of the year	0
Balance, end of period	217	0
Loans:
Total Loans				86,681	90,221
Total ALL	0	0		217	0
Construction and Land Development
Allowance for loan losses:
Balance, beginning of the year	6,803	9,709	10,055
Recoveries credited to allowance	665	447	206
Loans charged off	(4,218)	(2,005)	(2,190)
Provision charged to operations	2,508	(1,348)	1,638
Balance, end of period	5,758	6,803	9,709
Loans:
Loans individually evaluated for impairment				6,861	10,662
ALL individually evaluated for impairment				49	63
Loans collectively evaluated for impairment				1,233,119	1,175,505
ALL collectively evaluated for impairment				5,709	6,740
Total Loans				1,250,924	1,194,821
Total ALL	5,758	9,709	9,709	5,758	6,803
Construction and Land Development | Purchased Impaired
Allowance for loan losses:
Balance, beginning of the year	0
Balance, end of period	0	0
Loans:
Total Loans				10,944	8,654
Total ALL	0	0		0	0
Commercial Real Estate - Owner Occupied
Allowance for loan losses:
Balance, beginning of the year	4,023	2,931	3,801
Recoveries credited to allowance	456	610	171
Loans charged off	(1,346)	(709)	(46)
Provision charged to operations	786	1,191	(995)
Balance, end of period	3,919	4,023	2,931
Loans:
Loans individually evaluated for impairment				11,621	12,690
ALL individually evaluated for impairment				146	359
Loans collectively evaluated for impairment				2,002,184	1,299,011
ALL collectively evaluated for impairment				3,773	3,664
Total Loans				2,041,243	1,337,345
Total ALL	3,919	2,931	2,931	3,919	4,023
Commercial Real Estate - Owner Occupied | Purchased Impaired
Allowance for loan losses:
Balance, beginning of the year	0
Balance, end of period	0	0
Loans:
Total Loans				27,438	25,644
Total ALL	0	0		0	0
Commercial Real Estate - Non-Owner Occupied
Allowance for loan losses:
Balance, beginning of the year	8,865	7,544	6,622
Recoveries credited to allowance	109	100	2
Loans charged off	(270)	(94)	(1,180)
Provision charged to operations	839	1,315	2,100
Balance, end of period	9,543	8,865	7,544
Loans:
Loans individually evaluated for impairment				3,845	6,969
ALL individually evaluated for impairment				2	1
Loans collectively evaluated for impairment				3,267,688	2,443,106
ALL collectively evaluated for impairment				9,541	8,864
Total Loans				3,286,098	2,467,410
Total ALL	9,543	7,544	6,622	9,543	8,865
Commercial Real Estate - Non-Owner Occupied | Purchased Impaired
Allowance for loan losses:
Balance, beginning of the year	0
Balance, end of period	0	0
Loans:
Total Loans				14,565	17,335
Total ALL	0	0		0	0
Multifamily Real Estate
Allowance for loan losses:
Balance, beginning of the year	649	1,092	1,236
Recoveries credited to allowance	85	5	0
Loans charged off	0	0	0
Provision charged to operations	(102)	(448)	(144)
Balance, end of period	632	649	1,092
Loans:
Loans individually evaluated for impairment				0	0
ALL individually evaluated for impairment				0	0
Loans collectively evaluated for impairment				633,649	548,143
ALL collectively evaluated for impairment				632	649
Total Loans				633,743	548,231
Total ALL	632	1,092	1,092	632	649
Multifamily Real Estate | Purchased Impaired
Allowance for loan losses:
Balance, beginning of the year	0
Balance, end of period	0	0
Loans:
Total Loans				94	88
Total ALL	0	0		0	0
Commercial and Industrial
Allowance for loan losses:
Balance, beginning of the year	7,636	4,552	4,627
Recoveries credited to allowance	1,132	534	483
Loans charged off	(3,096)	(833)	(2,277)
Provision charged to operations	2,932	3,383	1,719
Balance, end of period	8,604	7,636	4,552
Loans:
Loans individually evaluated for impairment				6,236	4,242
ALL individually evaluated for impairment				619	752
Loans collectively evaluated for impairment				2,106,218	1,310,737
ALL collectively evaluated for impairment				7,768	6,884
Total Loans				2,114,033	1,317,135
Total ALL	8,604	4,552	4,552	8,604	7,636
Commercial and Industrial | Purchased Impaired
Allowance for loan losses:
Balance, beginning of the year	0
Balance, end of period	217	0
Loans:
Total Loans				1,579	2,156
Total ALL	0	0		217	0
Residential 1-4 Family - Commercial
Allowance for loan losses:
Balance, beginning of the year	1,692	4,437	3,698
Recoveries credited to allowance	372	353	329
Loans charged off	(472)	(176)	(463)
Provision charged to operations	(227)	(2,922)	873
Balance, end of period	1,365	1,692	4,437
Loans:
Loans individually evaluated for impairment				5,773	5,498
ALL individually evaluated for impairment				162	89
Loans collectively evaluated for impairment				706,359	621,320
ALL collectively evaluated for impairment				1,203	1,603
Total Loans				724,337	640,419
Total ALL	1,365	4,437	4,437	1,365	1,692
Residential 1-4 Family - Commercial | Purchased Impaired
Allowance for loan losses:
Balance, beginning of the year	0
Balance, end of period	0	0
Loans:
Total Loans				12,205	13,601
Total ALL	0	0		0	0
Residential 1-4 Family - Consumer
Allowance for loan losses:
Balance, beginning of the year	1,492	1,524	2,701
Recoveries credited to allowance	466	310	102
Loans charged off	(144)	(852)	(588)
Provision charged to operations	199	510	(691)
Balance, end of period	2,013	1,492	1,524
Loans:
Loans individually evaluated for impairment				20,446	16,031
ALL individually evaluated for impairment				1,242	470
Loans collectively evaluated for impairment				855,344	641,006
ALL collectively evaluated for impairment				771	1,022
Total Loans				890,503	673,909
Total ALL	2,013	1,524	2,701	2,013	1,492
Residential 1-4 Family - Consumer | Purchased Impaired
Allowance for loan losses:
Balance, beginning of the year	0
Balance, end of period	0	0
Loans:
Total Loans				14,713	16,872
Total ALL	0	0		0	0
Auto
Allowance for loan losses:
Balance, beginning of the year	1,443	975	946
Recoveries credited to allowance	549	436	459
Loans charged off	(1,282)	(1,074)	(1,038)
Provision charged to operations	743	1,106	608
Balance, end of period	1,453	1,443	975
Loans:
Loans individually evaluated for impairment				563	576
ALL individually evaluated for impairment				221	231
Loans collectively evaluated for impairment				349,852	301,360
ALL collectively evaluated for impairment				1,232	1,212
Total Loans				350,419	301,943
Total ALL	1,453	975	946	1,453	1,443
Auto | Purchased Impaired
Allowance for loan losses:
Balance, beginning of the year	0
Balance, end of period	0	0
Loans:
Total Loans				4	7
Total ALL	0	0		0	0
Residential 1-4 Family - Revolving
Allowance for loan losses:
Balance, beginning of the year	1,297	1,360	1,328
Recoveries credited to allowance	692	636	314
Loans charged off	(698)	(1,206)	(1,019)
Provision charged to operations	32	507	737
Balance, end of period	1,323	1,297	1,360
Loans:
Loans individually evaluated for impairment				3,048	1,874
ALL individually evaluated for impairment				510	188
Loans collectively evaluated for impairment				652,329	606,394
ALL collectively evaluated for impairment				813	1,109
Total Loans				659,504	613,383
Total ALL	1,323	1,360	1,360	1,323	1,297
Residential 1-4 Family - Revolving | Purchased Impaired
Allowance for loan losses:
Balance, beginning of the year	0
Balance, end of period	0	0
Loans:
Total Loans				4,127	5,115
Total ALL	0	0		0	0
Consumer and all other
Allowance for loan losses:
Balance, beginning of the year	7,145	4,084	2,178
Recoveries credited to allowance	2,706	1,737	1,189
Loans charged off	(16,582)	(9,281)	(4,509)
Provision charged to operations	14,415	10,605	5,226
Balance, end of period	7,684	7,145	4,084
Loans:
Loans individually evaluated for impairment				730	686
ALL individually evaluated for impairment				76	64
Loans collectively evaluated for impairment				658,390	620,176
ALL collectively evaluated for impairment				7,608	7,081
Total Loans				660,132	621,611
Total ALL	7,684	4,084	$ 4,084	7,684	7,145
Consumer and all other | Purchased Impaired
Allowance for loan losses:
Balance, beginning of the year	0
Balance, end of period	0	0
Loans:
Total Loans				1,012	749
Total ALL	$ 0	$ 0		$ 0	$ 0

LOANS AND ALLOWANCE FOR LOAN_12

LOANS AND ALLOWANCE FOR LOAN LOSSES (Loans Receivables Related Risk Rating Including Purchased Impaired Loans) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Financing Receivable, Recorded Investment [Line Items]
Total Loans	$ 12,610,936	$ 9,716,207
Construction and Land Development
Financing Receivable, Recorded Investment [Line Items]
Total Loans	1,250,924	1,194,821
Commercial Real Estate - Owner Occupied
Financing Receivable, Recorded Investment [Line Items]
Total Loans	2,041,243	1,337,345
Commercial Real Estate - Non-Owner Occupied
Financing Receivable, Recorded Investment [Line Items]
Total Loans	3,286,098	2,467,410
Multifamily Real Estate
Financing Receivable, Recorded Investment [Line Items]
Total Loans	633,743	548,231
Commercial and Industrial
Financing Receivable, Recorded Investment [Line Items]
Total Loans	2,114,033	1,317,135
Residential 1-4 Family - Commercial
Financing Receivable, Recorded Investment [Line Items]
Total Loans	724,337	640,419
Residential 1-4 Family - Consumer
Financing Receivable, Recorded Investment [Line Items]
Total Loans	890,503	673,909
Residential 1-4 Family - Revolving
Financing Receivable, Recorded Investment [Line Items]
Total Loans	659,504	613,383
Auto
Financing Receivable, Recorded Investment [Line Items]
Total Loans	350,419	301,943
Consumer and all other
Financing Receivable, Recorded Investment [Line Items]
Total Loans	660,132	621,611
Consumer
Financing Receivable, Recorded Investment [Line Items]
Total Loans	372,853	379,694
Other Commercial
Financing Receivable, Recorded Investment [Line Items]
Total Loans	287,279	241,917
Purchased Impaired
Financing Receivable, Recorded Investment [Line Items]
Total Loans	86,681	90,221
Purchased Impaired | Construction and Land Development
Financing Receivable, Recorded Investment [Line Items]
Total Loans	10,944	8,654
Purchased Impaired | Commercial Real Estate - Owner Occupied
Financing Receivable, Recorded Investment [Line Items]
Total Loans	27,438	25,644
Purchased Impaired | Commercial Real Estate - Non-Owner Occupied
Financing Receivable, Recorded Investment [Line Items]
Total Loans	14,565	17,335
Purchased Impaired | Multifamily Real Estate
Financing Receivable, Recorded Investment [Line Items]
Total Loans	94	88
Purchased Impaired | Commercial and Industrial
Financing Receivable, Recorded Investment [Line Items]
Total Loans	1,579	2,156
Purchased Impaired | Residential 1-4 Family - Commercial
Financing Receivable, Recorded Investment [Line Items]
Total Loans	12,205	13,601
Purchased Impaired | Residential 1-4 Family - Consumer
Financing Receivable, Recorded Investment [Line Items]
Total Loans	14,713	16,872
Purchased Impaired | Residential 1-4 Family - Revolving
Financing Receivable, Recorded Investment [Line Items]
Total Loans	4,127	5,115
Purchased Impaired | Auto
Financing Receivable, Recorded Investment [Line Items]
Total Loans	4	7
Purchased Impaired | Consumer and all other
Financing Receivable, Recorded Investment [Line Items]
Total Loans	1,012	749
Purchased Impaired | Consumer
Financing Receivable, Recorded Investment [Line Items]
Total Loans	668	32
Purchased Impaired | Other Commercial
Financing Receivable, Recorded Investment [Line Items]
Total Loans	344	717
Purchased Impaired | Pass
Financing Receivable, Recorded Investment [Line Items]
Total Loans	32,922	35,658
Purchased Impaired | Pass | Construction and Land Development
Financing Receivable, Recorded Investment [Line Items]
Total Loans	1,092	1,835
Purchased Impaired | Pass | Commercial Real Estate - Owner Occupied
Financing Receivable, Recorded Investment [Line Items]
Total Loans	8,264	8,347
Purchased Impaired | Pass | Commercial Real Estate - Non-Owner Occupied
Financing Receivable, Recorded Investment [Line Items]
Total Loans	3,826	4,789
Purchased Impaired | Pass | Multifamily Real Estate
Financing Receivable, Recorded Investment [Line Items]
Total Loans	0
Purchased Impaired | Pass | Commercial and Industrial
Financing Receivable, Recorded Investment [Line Items]
Total Loans	127	762
Purchased Impaired | Pass | Residential 1-4 Family - Commercial
Financing Receivable, Recorded Investment [Line Items]
Total Loans	6,000	6,476
Purchased Impaired | Pass | Residential 1-4 Family - Consumer
Financing Receivable, Recorded Investment [Line Items]
Total Loans	9,947	9,930
Purchased Impaired | Pass | Residential 1-4 Family - Revolving
Financing Receivable, Recorded Investment [Line Items]
Total Loans	2,887	3,438
Purchased Impaired | Pass | Auto
Financing Receivable, Recorded Investment [Line Items]
Total Loans	2	7
Purchased Impaired | Pass | Consumer
Financing Receivable, Recorded Investment [Line Items]
Total Loans	657	17
Purchased Impaired | Pass | Other Commercial
Financing Receivable, Recorded Investment [Line Items]
Total Loans	120	57
Purchased Impaired | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total Loans	27,931	21,699
Purchased Impaired | Special Mention | Construction and Land Development
Financing Receivable, Recorded Investment [Line Items]
Total Loans	3,692	1,308
Purchased Impaired | Special Mention | Commercial Real Estate - Owner Occupied
Financing Receivable, Recorded Investment [Line Items]
Total Loans	10,524	6,685
Purchased Impaired | Special Mention | Commercial Real Estate - Non-Owner Occupied
Financing Receivable, Recorded Investment [Line Items]
Total Loans	9,415	7,992
Purchased Impaired | Special Mention | Multifamily Real Estate
Financing Receivable, Recorded Investment [Line Items]
Total Loans	94	88
Purchased Impaired | Special Mention | Commercial and Industrial
Financing Receivable, Recorded Investment [Line Items]
Total Loans	25	134
Purchased Impaired | Special Mention | Residential 1-4 Family - Commercial
Financing Receivable, Recorded Investment [Line Items]
Total Loans	2,693	2,771
Purchased Impaired | Special Mention | Residential 1-4 Family - Consumer
Financing Receivable, Recorded Investment [Line Items]
Total Loans	557	1,030
Purchased Impaired | Special Mention | Residential 1-4 Family - Revolving
Financing Receivable, Recorded Investment [Line Items]
Total Loans	707	1,031
Purchased Impaired | Special Mention | Auto
Financing Receivable, Recorded Investment [Line Items]
Total Loans	0
Purchased Impaired | Special Mention | Consumer
Financing Receivable, Recorded Investment [Line Items]
Total Loans	0
Purchased Impaired | Special Mention | Other Commercial
Financing Receivable, Recorded Investment [Line Items]
Total Loans	224	660
Purchased Impaired | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total Loans	25,828	32,864
Purchased Impaired | Substandard | Construction and Land Development
Financing Receivable, Recorded Investment [Line Items]
Total Loans	6,160	5,511
Purchased Impaired | Substandard | Commercial Real Estate - Owner Occupied
Financing Receivable, Recorded Investment [Line Items]
Total Loans	8,650	10,612
Purchased Impaired | Substandard | Commercial Real Estate - Non-Owner Occupied
Financing Receivable, Recorded Investment [Line Items]
Total Loans	1,324	4,554
Purchased Impaired | Substandard | Multifamily Real Estate
Financing Receivable, Recorded Investment [Line Items]
Total Loans	0
Purchased Impaired | Substandard | Commercial and Industrial
Financing Receivable, Recorded Investment [Line Items]
Total Loans	1,427	1,260
Purchased Impaired | Substandard | Residential 1-4 Family - Commercial
Financing Receivable, Recorded Investment [Line Items]
Total Loans	3,512	4,354
Purchased Impaired | Substandard | Residential 1-4 Family - Consumer
Financing Receivable, Recorded Investment [Line Items]
Total Loans	4,209	5,912
Purchased Impaired | Substandard | Residential 1-4 Family - Revolving
Financing Receivable, Recorded Investment [Line Items]
Total Loans	533	646
Purchased Impaired | Substandard | Auto
Financing Receivable, Recorded Investment [Line Items]
Total Loans	2
Purchased Impaired | Substandard | Consumer
Financing Receivable, Recorded Investment [Line Items]
Total Loans	11	15
Purchased Impaired | Substandard | Other Commercial
Financing Receivable, Recorded Investment [Line Items]
Total Loans	0
Purchased Impaired | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total Loans	0	0
Purchased Impaired | Doubtful | Construction and Land Development
Financing Receivable, Recorded Investment [Line Items]
Total Loans	0	0
Purchased Impaired | Doubtful | Commercial Real Estate - Owner Occupied
Financing Receivable, Recorded Investment [Line Items]
Total Loans	0	0
Purchased Impaired | Doubtful | Commercial Real Estate - Non-Owner Occupied
Financing Receivable, Recorded Investment [Line Items]
Total Loans	0	0
Purchased Impaired | Doubtful | Multifamily Real Estate
Financing Receivable, Recorded Investment [Line Items]
Total Loans	0	0
Purchased Impaired | Doubtful | Commercial and Industrial
Financing Receivable, Recorded Investment [Line Items]
Total Loans	0	0
Purchased Impaired | Doubtful | Residential 1-4 Family - Commercial
Financing Receivable, Recorded Investment [Line Items]
Total Loans	0	0
Purchased Impaired | Doubtful | Residential 1-4 Family - Consumer
Financing Receivable, Recorded Investment [Line Items]
Total Loans	0	0
Purchased Impaired | Doubtful | Residential 1-4 Family - Revolving
Financing Receivable, Recorded Investment [Line Items]
Total Loans	0	0
Purchased Impaired | Doubtful | Auto
Financing Receivable, Recorded Investment [Line Items]
Total Loans	0	0
Purchased Impaired | Doubtful | Consumer
Financing Receivable, Recorded Investment [Line Items]
Total Loans	0	0
Purchased Impaired | Doubtful | Other Commercial
Financing Receivable, Recorded Investment [Line Items]
Total Loans	$ 0	$ 0

LOANS AND ALLOWANCE FOR LOAN_13

LOANS AND ALLOWANCE FOR LOAN LOSSES (Schedule of Acquired Loan Portfolio and Accretable Yield) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Accretable Yield
Balance at beginning of period	$ 31,201	$ 14,563
Additions	5,060	12,225
Accretion	(13,432)	(8,654)
Reclass of nonaccretable difference due to improvement in expected cash flows	4,485	1,876
Measurement period adjustment	631	3,974
Other, net	3,329	7,217
Balance at end of period	$ 31,274	$ 31,201

PREMISES AND EQUIPMENT (Narrati

PREMISES AND EQUIPMENT (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment [Abstract]
Depreciation expense	$ 15	$ 13.6	$ 10.9

PREMISES AND EQUIPMENT (Summary

PREMISES AND EQUIPMENT (Summary of Bank Premises and Equipment) (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Total	$ 263,382,000	$ 240,519,000
Less accumulated depreciation and amortization	102,309,000	93,552,000
Bank premises and equipment, net	161,073,000	146,967,000
Land
Property, Plant and Equipment [Line Items]
Total	44,578,000	41,494,000
Land Improvements and Buildings
Property, Plant and Equipment [Line Items]
Total	123,189,000	119,649,000
Leasehold Improvements
Property, Plant and Equipment [Line Items]
Total	20,597,000	10,266,000
Furniture and Equipment
Property, Plant and Equipment [Line Items]
Total	71,469,000	62,154,000
Construction in Progress
Property, Plant and Equipment [Line Items]
Total	$ 3,549,000	$ 6,956,000

INTANGIBLE ASSETS (Narrative) (

INTANGIBLE ASSETS (Narrative) (Details) - USD ($)	3 Months Ended		12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Goodwill, written off	$ 0	$ 864,000
Intangible assets, amortization expense			$ 18,521,000	$ 12,839,000	$ 6,088,000
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 | Access National Bank
Finite-Lived Intangible Assets [Line Items]
Intangible assets, amortization period (years)			4 years
Core Deposits | Maximum | Access National Bank
Finite-Lived Intangible Assets [Line Items]
Intangible assets, amortization period (years)			10 years
Other Amortizable Intangibles | Minimum | Access National Bank
Finite-Lived Intangible Assets [Line Items]
Intangible assets, amortization period (years)			4 years
Other Amortizable Intangibles | Maximum | Access National Bank
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			$ 18,500,000	$ 12,800,000	$ 6,100,000

INTANGIBLE ASSETS (Information

INTANGIBLE ASSETS (Information Concerning Intangible Assets with Finite Life) (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Total estimated amortization expense	$ 73,669,000
Core Deposits
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	135,300,000	$ 95,152,000
Accumulated Amortization	73,336,000	57,293,000
Total estimated amortization expense	61,964,000	37,859,000
Other Amortizable Intangibles
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	15,349,000	12,695,000
Accumulated Amortization	3,644,000	1,870,000
Total estimated amortization expense	$ 11,705,000	$ 10,825,000

INTANGIBLE ASSETS (Estimated Re

INTANGIBLE ASSETS (Estimated Remaining Amortization Expense of Intangibles) (Details)	Dec. 31, 2019USD ($)
Estimated Remaining Amortization of Intangibles
2020	$ 16,483,000
2021	13,874,000
2022	11,490,000
2023	9,687,000
2024	7,819,000
Thereafter	14,316,000
Total estimated amortization expense	$ 73,669,000

LEASES (Narrative) (Details)

LEASES (Narrative) (Details)	12 Months Ended
	Dec. 31, 2019USD ($)lease
Lessee, Lease, Description [Line Items]
Lessee, Operating lease, number of leases | lease	160
Operating lease, right-of-use asset	$ 54,900,000
Operating lease, liability	66,052,000
Operating lease, expense	11,500,000
Lessee, operating lease, lease not yet commenced, amount	$ 0
Maximum
Lessee, Lease, Description [Line Items]
Lessee, operating lease, remaining lease term (years)	14 years

LEASES (Maturity of Operating L

LEASES (Maturity of Operating Leases Under Topic 842) (Details)	Dec. 31, 2019USD ($)
Leases [Abstract]
2020	$ 13,046,000
2021	11,321,000
2022	10,344,000
2023	9,377,000
2024	8,065,000
Thereafter	21,025,000
Total future lease payments	73,178,000
Less: Interest	7,126,000
Present value of lease liabilities	$ 66,052,000

LEASES (Other Lease Information

LEASES (Other Lease Information) (Details)	12 Months Ended
	Dec. 31, 2019USD ($)
Leases [Abstract]
Operating lease, weighted average remaining lease term (years)	7 years 4 months 9 days
Operating lease, weighted average discount rate, percent	2.69%
Operating Cash Flows from Operating Leases	$ 13,697,000
Right-of-use assets obtained in exchange for lease obligations, operating lease	$ 8,065,000

DEPOSITS (Narrative) (Details)

DEPOSITS (Narrative) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Cash and Cash Equivalents [Line Items]
Time deposits held in Certificates of Deposit	$ 2,749,425
Deposit overdrafts as other commercial/consumer loans	2,600	$ 2,000
CDARS
Cash and Cash Equivalents [Line Items]
Time deposits held in Certificates of Deposit	$ 73,900	$ 118,300

DEPOSITS (Schedule of Deposits

DEPOSITS (Schedule of Deposits by Type) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Deposits, Interest-bearing and Noninterest-bearing, Alternative [Abstract]
NOW accounts	$ 2,905,714	$ 2,288,523
Money market accounts	3,951,856	2,875,301
Savings accounts	727,847	622,823
Time deposits of $250,000 and over	684,797	292,224
Other time deposits	2,064,628	1,797,482
Total interest-bearing deposits	$ 10,334,842	$ 7,876,353

DEPOSITS (Scheduled Maturities

DEPOSITS (Scheduled Maturities of Time Deposits) (Details) $ in Thousands	Dec. 31, 2019USD ($)
Deposits, Interest-bearing and Noninterest-bearing, Alternative [Abstract]
2020	$ 1,626,492
2021	621,567
2022	199,507
2023	140,722
2024	160,465
Thereafter	672
Total scheduled maturities of time deposits	$ 2,749,425

BORROWINGS (Short-Term Borrowin

BORROWINGS (Short-Term Borrowings) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Debt Disclosure [Abstract]
Securities sold under agreements to repurchase	$ 66,053,000	$ 39,197,000
FHLB Advances	370,200,000	1,043,600,000
Other short-term borrowings	0	5,000,000
Total short-term borrowings	436,253,000	1,087,797,000
Average outstanding balance during the period	$ 673,116,000	$ 968,014,000
Average interest rate	2.30%	1.91%
Average interest rate at end of period	1.52%	2.43%

BORROWINGS (Narrative) (Details

BORROWINGS (Narrative) (Details) - USD ($)	Aug. 29, 2019	Feb. 01, 2019	Aug. 23, 2012	Dec. 31, 2016	Dec. 31, 2019	Dec. 31, 2018	Jan. 01, 2018
Subordinated Borrowing [Line Items]
Remaining available balance for the federal funds lines					$ 682,000,000	$ 382,000,000
Remaining borrowing capacity with correspondent banks					25,000,000	25,000,000
Maximum collateral dependent line of credit with the FHLB					5,200,000,000	4,000,000,000
Subordinated debt				$ 150,000,000	158,500,000	158,500,000
Prepayment penalty			$ 19,600,000
Unamortized prepayment penalty recognized as a component of noninterest expense	$ 7,400,000
Trust Preferred Capital Notes
Subordinated Borrowing [Line Items]
Trust preferred capital notes principal balance					150,500,000
Remaining fair value discount on acquired notes					14,900,000
Subordinated Debt
Subordinated Borrowing [Line Items]
Remaining fair value discount on acquired notes					$ 1,400,000	$ 1,600,000
Stated percentage on debt instrument				5.00%
Subordinated debt maturity date				Dec. 15, 2021	Dec. 15, 2026
LIBOR | Subordinated Debt
Subordinated Borrowing [Line Items]
Three-month LIBOR rate plus					3.175%
Acquisitions, Prior To 2006
Subordinated Borrowing [Line Items]
Trust preferred capital notes principal balance					$ 58,500,000
StellarOne Bank and Xenith [Member] | Trust Preferred Capital Notes
Subordinated Borrowing [Line Items]
Trust preferred securities acquired					87,000,000
Xenith
Subordinated Borrowing [Line Items]
Subordinated debt							$ 8,500,000
Xenith | Subordinated Debt
Subordinated Borrowing [Line Items]
Remaining fair value discount on acquired notes					$ 51,000		$ 259,000
Stated percentage on debt instrument							6.75%
Access National Bank
Subordinated Borrowing [Line Items]
Trust preferred securities acquired		$ 5,000,000

BORROWINGS (Trust Preferred Cap

BORROWINGS (Trust Preferred Capital Notes Qualify for Tier 1 Capital) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Investment	$ 377,587,000	$ 250,210,000
Trust Preferred Capital Notes
Debt Instrument [Line Items]
Trust preferred capital notes principal balance	150,500,000
Investment	4,659,000
Statutory Trust I
Debt Instrument [Line Items]
Trust preferred capital notes principal balance	22,500,000
Investment	$ 696,000
Rate	4.66%
Subordinated debt maturity date	Jun. 17, 2034
Statutory Trust I | LIBOR
Debt Instrument [Line Items]
Spread on LIBOR	2.75%
Statutory Trust II
Debt Instrument [Line Items]
Trust preferred capital notes principal balance	$ 36,000,000
Investment	$ 1,114,000
Rate	3.31%
Subordinated debt maturity date	Jun. 15, 2036
Statutory Trust II | LIBOR
Debt Instrument [Line Items]
Spread on LIBOR	1.40%
VFG Limited Liability Trust I Indenture
Debt Instrument [Line Items]
Trust preferred capital notes principal balance	$ 20,000,000
Investment	$ 619,000
Rate	4.64%
Subordinated debt maturity date	Mar. 18, 2034
VFG Limited Liability Trust I Indenture | LIBOR
Debt Instrument [Line Items]
Spread on LIBOR	2.73%
FNB Statutory Trust II Indenture
Debt Instrument [Line Items]
Trust preferred capital notes principal balance	$ 12,000,000
Investment	$ 372,000
Rate	5.01%
Subordinated debt maturity date	Jun. 26, 2033
FNB Statutory Trust II Indenture | LIBOR
Debt Instrument [Line Items]
Spread on LIBOR	3.10%
Gateway Capital Statutory Trust I
Debt Instrument [Line Items]
Trust preferred capital notes principal balance	$ 8,000,000
Investment	$ 248,000
Rate	5.01%
Subordinated debt maturity date	Sep. 17, 2033
Gateway Capital Statutory Trust I | LIBOR
Debt Instrument [Line Items]
Spread on LIBOR	3.10%
Gateway Capital Statutory Trust II
Debt Instrument [Line Items]
Trust preferred capital notes principal balance	$ 7,000,000
Investment	$ 217,000
Rate	4.56%
Subordinated debt maturity date	Jun. 17, 2034
Gateway Capital Statutory Trust II | LIBOR
Debt Instrument [Line Items]
Spread on LIBOR	2.65%
Gateway Capital Statutory Trust III
Debt Instrument [Line Items]
Trust preferred capital notes principal balance	$ 15,000,000
Investment	$ 464,000
Rate	3.41%
Subordinated debt maturity date	May 30, 2036
Gateway Capital Statutory Trust III | LIBOR
Debt Instrument [Line Items]
Spread on LIBOR	1.50%
Gateway Capital Statutory Trust IV
Debt Instrument [Line Items]
Trust preferred capital notes principal balance	$ 25,000,000
Investment	$ 774,000
Rate	3.46%
Subordinated debt maturity date	Jul. 30, 2037
Gateway Capital Statutory Trust IV | LIBOR
Debt Instrument [Line Items]
Spread on LIBOR	1.55%
MFC Capital Trust II
Debt Instrument [Line Items]
Trust preferred capital notes principal balance	$ 5,000,000
Investment	$ 155,000
Rate	4.76%
Subordinated debt maturity date	Jan. 23, 2034
MFC Capital Trust II | LIBOR
Debt Instrument [Line Items]
Spread on LIBOR	2.85%

BORROWINGS (Advances from the F

BORROWINGS (Advances from the FHLB) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Advances from the FHLB
Advance Amount	$ 780,000	$ 385,000
Adjustable Rate Credit One
Advances from the FHLB
Interest Rate	1.16%	3.25%
Maturity Date	Aug. 17, 2029	Aug. 23, 2022
Advance Amount	$ 50,000	$ 55,000
Adjustable Rate Credit Two
Advances from the FHLB
Interest Rate	1.41%	3.26%
Maturity Date	May 15, 2024	Nov. 23, 2022
Advance Amount	$ 200,000	$ 65,000
Adjustable Rate Credit Three
Advances from the FHLB
Interest Rate	1.16%	3.26%
Maturity Date	May 22, 2029	Nov. 23, 2022
Advance Amount	$ 150,000	$ 10,000
Adjustable Rate Credit Four
Advances from the FHLB
Interest Rate	1.16%	3.26%
Maturity Date	May 30, 2029	Nov. 23, 2022
Advance Amount	$ 50,000	$ 10,000
Adjustable Rate Credit Five
Advances from the FHLB
Interest Rate	1.16%
Maturity Date	Jun. 21, 2029
Advance Amount	$ 100,000
Fixed Rate Convertible
Advances from the FHLB
Interest Rate	1.78%	1.78%
Maturity Date	Oct. 26, 2028	Oct. 26, 2028
Advance Amount	$ 200,000	$ 200,000
Fixed Rate Hybrid One
Advances from the FHLB
Interest Rate	1.58%	2.37%
Maturity Date	May 18, 2020	Oct. 10, 2019
Advance Amount	$ 20,000	$ 25,000
Fixed Rate Hybrid Two
Advances from the FHLB
Interest Rate		1.58%
Maturity Date		May 18, 2020
Advance Amount		$ 20,000
Fixed Rate Credit
Advances from the FHLB
Interest Rate	1.54%
Maturity Date	Oct. 2, 2020
Advance Amount	$ 10,000
LIBOR | Adjustable Rate Credit One
Advances from the FHLB
Spread on LIBOR	(0.75%)	0.44%
LIBOR | Adjustable Rate Credit Two
Advances from the FHLB
Spread on LIBOR	(0.50%)	0.45%
LIBOR | Adjustable Rate Credit Three
Advances from the FHLB
Spread on LIBOR	(0.75%)	0.45%
LIBOR | Adjustable Rate Credit Four
Advances from the FHLB
Spread on LIBOR	(0.75%)	0.45%
LIBOR | Adjustable Rate Credit Five
Advances from the FHLB
Spread on LIBOR	(0.75%)

BORROWINGS (Contractual Maturit

BORROWINGS (Contractual Maturities of Long-Term Debt) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Premium (Discount)
2020	$ (834)
2021	(1,008)
2022	(1,030)
2023	(1,053)
2024	(1,078)
Thereafter	(11,161)
Total Long-term borrowings	(16,164)
Total Long-term Borrowings
2020	29,166
2021	(1,008)
2022	(1,030)
2023	(1,053)
2024	198,922
Thereafter	852,498
Long-term Debt	1,077,495	$ 668,481
Trust Preferred Capital Notes
Total Long-term Borrowings, Gross
2020	0
2021	0
2022	0
2023	0
2024	0
Thereafter	155,159
Total Long-term borrowings	155,159
Subordinated Debt
Total Long-term Borrowings, Gross
2020	0
2021	0
2022	0
2023	0
2024	0
Thereafter	158,500
Total Long-term borrowings	158,500
FHLB advances
Total Long-term Borrowings, Gross
2020	30,000
2021	0
2022	0
2023	0
2024	200,000
Thereafter	550,000
Total Long-term borrowings	$ 780,000

COMMITMENTS AND CONTINGENCIES_2

COMMITMENTS AND CONTINGENCIES (Narrative) (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Daily average required reserves	$ 6.3	$ 58
Deposits with other financial institutions	131.4
Uninsured deposits with other financial institutions	11.6	3.7
Reserve for Off-balance Sheet Activities
Off-balance sheet credit risks, amount, liability	2.6	$ 1.4
Cash Flow Hedging
Deposits with other financial institutions serves as collateral for cash flow hedge	$ 116.8

COMMITMENTS AND CONTINGENCIES_3

COMMITMENTS AND CONTINGENCIES (Balances of Commitments and Contingencies) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Commitments with off-balance sheet risk:
Total commitments with off-balance sheet risk	$ 4,900,930	$ 3,334,682
Commitments to Extend Credit
Commitments with off-balance sheet risk:
Total commitments with off-balance sheet risk	4,691,272	3,167,085
Standby Letters of Credit
Commitments with off-balance sheet risk:
Total commitments with off-balance sheet risk	$ 209,658	$ 167,597

COMMITMENTS AND CONTINGENCIES_4

COMMITMENTS AND CONTINGENCIES (Schedule of Securities Pledged as Collateral) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Financial Instruments Owned and Pledged as Collateral [Line Items]
Cash	$ 116,839	$ 13,509
Loans	4,139,672	3,337,289
Total pledged assets	5,300,858	3,732,286
Available-for-sale Securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities pledged	733,995	374,081
Held-to-maturity Securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities pledged	310,352	7,407
Public deposits
Financial Instruments Owned and Pledged as Collateral [Line Items]
Cash	0	0
Loans	0	0
Total pledged assets	759,362	300,576
Public deposits | Available-for-sale Securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities pledged	467,266	293,169
Public deposits | Held-to-maturity Securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities pledged	292,096	7,407
Repurchase agreements
Financial Instruments Owned and Pledged as Collateral [Line Items]
Cash	0	0
Loans	0	0
Total pledged assets	86,901	55,269
Repurchase agreements | Available-for-sale Securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities pledged	79,299	55,269
Repurchase agreements | Held-to-maturity Securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities pledged	7,602	0
FHLB advances
Financial Instruments Owned and Pledged as Collateral [Line Items]
Cash	0	0
Loans	3,846,934	3,337,289
Total pledged assets	3,910,746	3,337,777
FHLB advances | Available-for-sale Securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities pledged	63,812	488
FHLB advances | Held-to-maturity Securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities pledged	0	0
Federal Funds [Member]
Financial Instruments Owned and Pledged as Collateral [Line Items]
Cash	0
Loans	292,738
Total pledged assets	292,738
Federal Funds [Member] | Available-for-sale Securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities pledged	0
Federal Funds [Member] | Held-to-maturity Securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities pledged	0
Derivatives
Financial Instruments Owned and Pledged as Collateral [Line Items]
Cash	116,839	13,509
Loans	0	0
Total pledged assets	118,099	15,447
Derivatives | Available-for-sale Securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities pledged	1,260	1,938
Derivatives | 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	133,012	23,217
Other purposes | Available-for-sale Securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities pledged	122,358	23,217
Other purposes | Held-to-maturity Securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities pledged	$ 10,654	$ 0

DERIVATIVES (Narrative) (Detail

DERIVATIVES (Narrative) (Details) $ in Thousands	3 Months Ended	12 Months Ended
	Sep. 30, 2019USD ($)derivative	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)
Derivatives, Fair Value [Line Items]
Carrying Amount of Hedged Asset/(Liabilities)		$ 50,000	$ 50,000
Cash Flow Hedging
Derivatives, Fair Value [Line Items]
Number of interest rate derivatives terminated | derivative	4
Cash Flow Hedging | Operating Income (Loss) [Member]
Derivatives, Fair Value [Line Items]
Unrealized gain within accumulated other comprehensive income, to be reclassified into earnings	$ 9,000
Loans
Derivatives, Fair Value [Line Items]
Carrying Amount of Hedged Asset/(Liabilities)		83,078	87,596
Cumulative Amount of Basis Adjustments Included in the Carrying Amount of the Hedged Asset/(Liabilities)		1,972	(1,572)
Loans | Fair Value Hedging
Derivatives, Fair Value [Line Items]
Aggregate notional amount of the hedged items		83,100	87,600
Fair value of aggregate notional amount of the hedged items, unrealized loss		(2,000)	(1,600)
Available-for-sale Securities
Derivatives, Fair Value [Line Items]
Carrying Amount of Hedged Asset/(Liabilities)		206,799	224,241
Cumulative Amount of Basis Adjustments Included in the Carrying Amount of the Hedged Asset/(Liabilities)		4,072	1,399
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		(4,100)	(1,400)
Cumulative Amount of Basis Adjustments Included in the Carrying Amount of the Hedged Asset/(Liabilities)		$ 4,100	$ 1,400

DERIVATIVES (Summary of the Der

DERIVATIVES (Summary of the Derivatives) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Pay Fixed - Receive Floating Interest Rate Swaps | Not Designated as accounting hedges
Summary of the derivative designated as a cash flow hedge
Derivative, amount	$ 1,575,149	$ 878,446
Asset	753	10,120
Liabilities	53,592	9,306
Pay Floating - Receive Fixed Interest Rate Swaps | Not Designated as accounting hedges
Summary of the derivative designated as a cash flow hedge
Derivative, amount	1,575,149	878,446
Asset	53,592	9,306
Liabilities	753	10,120
Cash Flow Hedging | Designated as accounting hedges
Summary of the derivative designated as a cash flow hedge
Derivative, amount	100,000	152,500
Asset	0	0
Liabilities	1,147	4,786
Fair Value Hedging | Designated as accounting hedges
Summary of the derivative designated as a cash flow hedge
Derivative, amount	133,078	137,596
Asset	182	1,872
Liabilities	$ 6,256	$ 1,684

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, 2019	Dec. 31, 2018
Derivative [Line Items]
Carrying Amount of Hedged Asset/(Liabilities)	$ 50,000	$ 50,000
Portfolio, last-of-layer, amortized cost	207,000	224,000
Available-for-sale Securities
Derivative [Line Items]
Carrying Amount of Hedged Asset/(Liabilities)	206,799	224,241
Cumulative Amount of Basis Adjustments Included in the Carrying Amount of the Hedged Asset/(Liabilities)	4,072	1,399
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)	4,100	1,400
Fair value of aggregate notional amount of the hedged items, unrealized loss	(4,100)	(1,400)
Loans
Derivative [Line Items]
Carrying Amount of Hedged Asset/(Liabilities)	83,078	87,596
Cumulative Amount of Basis Adjustments Included in the Carrying Amount of the Hedged Asset/(Liabilities)	1,972	(1,572)
Loans | Fair Value Hedging
Derivative [Line Items]
Fair value of aggregate notional amount of the hedged items, unrealized loss	$ (2,000)	$ (1,600)

STOCKHOLDERS' EQUITY (Narrative

STOCKHOLDERS' EQUITY (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		12 Months Ended
	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassifications of unrealized gains (losses) on AFS			$ 7,675	$ 383	$ 800
Accounting Standards Update 2017-12
Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassifications of unrealized gains (losses) on AFS	$ 400
Accounting Standards Update 2018-02
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified from accumulated other comprehensive income	$ (107)
Accounting Standards Update 2016-01
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified from accumulated other comprehensive income		$ (61)
Serial Preferred Stock
Accumulated Other Comprehensive Income (Loss) [Line Items]
Preferred stock, shares authorized			500,000
Preferred stock, par value (usd per share)			$ 10
Preferred stock, shares issued			0	0
Preferred stock, shares outstanding			0	0

STOCKHOLDERS' EQUITY (Change in

STOCKHOLDERS' EQUITY (Change in Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 1,924,581	$ 1,046,329	$ 1,001,032
Other comprehensive income (loss)	45,848	(9,343)	2,925
Ending balance	2,513,102	1,924,581	1,046,329
Unrealized Gains (Losses) on AFS Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(5,949)	1,874	(542)
Transfer of HTM securities to AFS securities		2,785
Cumulative effects from adoption of new accounting standards		465
Other comprehensive income (loss) before reclassification	49,890	(10,711)	2,936
Amounts reclassified from accumulated other comprehensive income	(6,064)	(362)	(520)
Other comprehensive income (loss)	43,826	(11,073)	2,416
Ending balance	37,877	(5,949)	1,874
Unrealized Gains (Losses) for AFS Securities Transferred to HTM
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	95	2,705	3,377
Transfer of HTM securities to AFS securities		(2,785)
Cumulative effects from adoption of new accounting standards		583
Other comprehensive income (loss) before reclassification	0	0	0
Amounts reclassified from accumulated other comprehensive income	(20)	(408)	(672)
Other comprehensive income (loss)	(20)	(408)	(672)
Ending balance	75	95	2,705
Change in Fair Value of Cash Flow Hedges
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(3,393)	(4,361)	(5,179)
Transfer of HTM securities to AFS securities		0
Cumulative effects from adoption of new accounting standards		(1,094)
Other comprehensive income (loss) before reclassification	(5,103)	1,087	(44)
Amounts reclassified from accumulated other comprehensive income	7,714	975	862
Other comprehensive income (loss)	2,611	2,062	818
Ending balance	(782)	(3,393)	(4,361)
Unrealized Gains (Losses) on BOLI
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(1,026)	(1,102)	(1,465)
Transfer of HTM securities to AFS securities		0
Cumulative effects from adoption of new accounting standards		0
Other comprehensive income (loss) before reclassification	(646)	0	0
Amounts reclassified from accumulated other comprehensive income	77	76	363
Other comprehensive income (loss)	(569)	76	363
Ending balance	(1,595)	(1,026)	(1,102)
Accumulated Other Comprehensive Income (Loss)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(10,273)	(884)	(3,809)
Transfer of HTM securities to AFS securities		0
Cumulative effects from adoption of new accounting standards		(46)
Other comprehensive income (loss) before reclassification	44,141	(9,624)	2,892
Amounts reclassified from accumulated other comprehensive income	1,707	281	33
Other comprehensive income (loss)	45,848	(9,343)	2,925
Ending balance	$ 35,575	$ (10,273)	$ (884)

REGULATORY MATTERS AND CAPITA_2

REGULATORY MATTERS AND CAPITAL (Schedule of Bank Capital and Ratio) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Common Equity Tier 1 capital to risk weighted assets, actual amount	$ 1,437,908	$ 1,106,871
Common Equity Tier 1 capital to risk weighted assets, actual ratio	10.24%	9.93%
Common Equity Tier 1 capital to risk weighted assets, required for capital adequacy purposes, amount	$ 631,893	$ 501,608
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	$ 1,437,908	$ 1,236,709
Tier 1 capital to risk weighted assets, actual ratio	10.24%	11.09%
Tier 1 capital to risk weighted assets, required for capital adequacy purposes, amount	$ 842,524	$ 668,817
Tier 1 capital ratio of risk-weighted assets, required for capital adequacy purposes, ratio	6.00%	6.00%
Total capital to risk weighted assets, actual amount	$ 1,773,835	$ 1,435,711
Total capital to risk weighted assets, actual ratio	12.63%	12.88%
Total capital to risk weighted assets, Required for Capital adequacy purposes, amount	$ 1,123,569	$ 891,753
Total capital to risk weighted assets, required for capital adequacy purposes, ratio	8.00%	8.00%
Tier 1 capital to average adjusted assets, actual amount	$ 1,437,908	$ 1,236,709
Tier 1 capital to average adjusted assets, actual ratio	8.79%	9.71%
Tier 1 capital to average adjusted assets, required for capital adequacy purposes, amount	$ 654,338	$ 509,678
Tier 1 capital to average adjusted assets, required for capital adequacy purposes, ratio	4.00%	4.00%
Atlantic Union Bank
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Common Equity Tier 1 capital to risk weighted assets, actual amount	$ 1,704,426	$ 1,378,039
Common Equity Tier 1 capital to risk weighted assets, actual ratio	12.18%	12.40%
Common Equity Tier 1 capital to risk weighted assets, required for capital adequacy purposes, amount	$ 629,714	$ 500,224
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	$ 909,587	$ 722,546
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	$ 1,704,426	$ 1,378,039
Tier 1 capital to risk weighted assets, actual ratio	12.18%	12.40%
Tier 1 capital to risk weighted assets, required for capital adequacy purposes, amount	$ 839,619	$ 666,965
Tier 1 capital ratio of risk-weighted assets, required for capital adequacy purposes, ratio	6.00%	6.00%
Tier 1 capital to risk weighted assets, required in order to be well capitalized under PCA, amount	$ 1,119,492	$ 889,287
Tier 1 capital to risk weighted assets, required in order to be well capitalized under PCA, ratio	8.00%	8.00%
Total capital to risk weighted assets, actual amount	$ 1,747,620	$ 1,419,984
Total capital to risk weighted assets, actual ratio	12.48%	12.77%
Total capital to risk weighted assets, Required for Capital adequacy purposes, amount	$ 1,120,269	$ 889,289
Total capital to risk weighted assets, required for capital adequacy purposes, ratio	8.00%	8.00%
Total capital to risk weighted assets, required in order to be well capitalized under PCA, amount	$ 1,400,337	$ 1,111,612
Total capital to risk weighted assets, required in order to be well capitalized under PCA, ratio	10.00%	10.00%
Tier 1 capital to average adjusted assets, actual amount	$ 1,704,426	$ 1,378,039
Tier 1 capital to average adjusted assets, actual ratio	10.45%	10.84%
Tier 1 capital to average adjusted assets, required for capital adequacy purposes, amount	$ 652,412	$ 508,412
Tier 1 capital to average adjusted assets, required for capital adequacy purposes, ratio	4.00%	4.00%
Tier 1 capital to average adjusted assets, required in order to be well capitalized under PCA, amount	$ 815,515	$ 635,515
Tier 1 capital to average adjusted assets, required in order to be well capitalized under PCA, ratio	5.00%	5.00%

FAIR VALUE MEASUREMENTS (Narrat

FAIR VALUE MEASUREMENTS (Narrative) (Details)	12 Months Ended
	Dec. 31, 2019USD ($)item	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)
Fair Value Disclosures [Abstract]
Minimum number of market participants | item	4,000
Level 3 Fair value measurements weighted average related to impaired loans	5.90%	5.30%
Level 3 fair value measurements weighted average related to foreclosed property	4.50%	3.70%
Level 3 fair value measurements weighted average related to former bank premises	0.00%	0.00%
Total valuation expenses related to foreclosed properties	$ 921,000	$ 1,300,000	$ 1,600,000
Total Valuation expenses related to former bank premises	985,000	$ 0	$ 339,000
Loans held for sale, at fair value	$ 55,405,000

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, 2019	Dec. 31, 2018
ASSETS
Securities available for sale, at fair value	$ 1,945,445	$ 1,774,821
Loans held for sale, at fair value	55,405
Fair value hedges	182	1,872
LIABILITIES
Cash flow hedges	1,147	4,786
Fair value hedges	6,256	1,684
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
Fair value hedges	0	0
LIABILITIES
Cash flow hedges	0	0
Fair value hedges	0	0
Significant Other Observable Inputs Level 2
ASSETS
Securities available for sale, at fair value	1,945,445	1,774,821
Loans held for sale, at fair value	55,405
Fair value hedges	182	1,872
LIABILITIES
Cash flow hedges	1,147	4,786
Fair value hedges	6,256	1,684
Significant Unobservable Inputs Level 3
ASSETS
Securities available for sale, at fair value	0	0
Loans held for sale, at fair value	0
Fair value hedges	0	0
LIABILITIES
Cash flow hedges	0	0
Fair value hedges	0	0
Recurring
ASSETS
Loans held for sale, at fair value	55,405
Interest rate swap	54,345	19,426
Fair value hedges	182	1,872
LIABILITIES
Interest rate swap	54,345	19,426
Cash flow hedges	1,147	4,786
Fair value hedges	6,256	1,684
Recurring | Quoted Prices in Active Markets for Identical Assets Level 1
ASSETS
Loans held for sale, at fair value	0
Interest rate swap	0	0
Fair value hedges	0	0
LIABILITIES
Interest rate swap	0	0
Cash flow hedges	0	0
Fair value hedges	0	0
Recurring | Significant Other Observable Inputs Level 2
ASSETS
Loans held for sale, at fair value	55,405
Interest rate swap	54,345	19,426
Fair value hedges	182	1,872
LIABILITIES
Interest rate swap	54,345	19,426
Cash flow hedges	1,147	4,786
Fair value hedges	6,256	1,684
Recurring | Significant Unobservable Inputs Level 3
ASSETS
Loans held for sale, at fair value	0
Interest rate swap	0	0
Fair value hedges	0	0
LIABILITIES
Interest rate swap	0	0
Cash flow hedges	0	0
Fair value hedges	0	0
U.S. government and agency securities
ASSETS
Securities available for sale, at fair value	4,498
U.S. government and agency securities | Recurring
ASSETS
Securities available for sale, at fair value	4,498
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
U.S. government and agency securities | Recurring | Significant Other Observable Inputs Level 2
ASSETS
Securities available for sale, at fair value	4,498
U.S. government and agency securities | Recurring | Significant Unobservable Inputs Level 3
ASSETS
Securities available for sale, at fair value	0
Obligations of states and political subdivisions
ASSETS
Securities available for sale, at fair value	442,992	468,491
Obligations of states and political subdivisions | Recurring
ASSETS
Securities available for sale, at fair value	442,992	468,491
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	442,992	468,491
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	263,070	167,696
Corporate and other bonds | Recurring
ASSETS
Securities available for sale, at fair value	263,070	167,696
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	263,070	167,696
Corporate and other bonds | Recurring | Significant Unobservable Inputs Level 3
ASSETS
Securities available for sale, at fair value	0	0
Mortgage-backed securities
ASSETS
Securities available for sale, at fair value	1,231,806	1,129,865
Mortgage-backed securities | Recurring
ASSETS
Securities available for sale, at fair value	1,231,806	1,129,865
Mortgage-backed securities | Recurring | Quoted Prices in Active Markets for Identical Assets Level 1
ASSETS
Securities available for sale, at fair value	0	0
Mortgage-backed securities | Recurring | Significant Other Observable Inputs Level 2
ASSETS
Securities available for sale, at fair value	1,231,806	1,129,865
Mortgage-backed 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	3,079	8,769
Other securities | Recurring
ASSETS
Securities available for sale, at fair value	3,079	8,769
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	3,079	8,769
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	54,345	19,426
LIABILITIES
Interest rate swap	54,345	19,426
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	54,345	19,426
LIABILITIES
Interest rate swap	54,345	19,426
Interest Rate Swap | Significant Unobservable Inputs Level 3
ASSETS
Interest rate swap	0	0
LIABILITIES
Interest rate swap	$ 0	$ 0

FAIR VALUE MEASUREMENTS (Sche_2

FAIR VALUE MEASUREMENTS (Schedule of Financial Assets Measured at Fair Value on Nonrecurring Basis) (Details) - Fair Value, Measurements, Nonrecurring - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Schedule of financial assets measured at fair value on nonrecurring basis
Impaired loans	$ 3,593	$ 3,734
Foreclosed properties	4,708	6,722
Former bank premises	3,557	2,090
Quoted Prices in Active Markets for Identical Assets Level 1
Schedule of financial assets measured at fair value on nonrecurring basis
Impaired loans	0	0
Foreclosed properties	0	0
Former bank premises	0	0
Significant Other Observable Inputs Level 2
Schedule of financial assets measured at fair value on nonrecurring basis
Impaired loans	0	0
Foreclosed properties	0	0
Former bank premises	0	0
Significant Unobservable Inputs Level 3
Schedule of financial assets measured at fair value on nonrecurring basis
Impaired loans	3,593	3,734
Foreclosed properties	4,708	6,722
Former bank premises	$ 3,557	$ 2,090

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, 2019	Dec. 31, 2018
ASSETS
Cash and cash equivalents	$ 436,032	$ 261,199
Securities available for sale, at fair value	1,945,445	1,774,821
HTM securities	603,503	499,501
Restricted stock	130,848	124,602
Loans held for sale, at fair value	55,405
Net loans	12,449,505	9,534,717
Derivatives:
Fair value hedges	182	1,872
Accrued interest receivable	52,721	46,062
Bank owned life insurance	322,917	263,034
LIABILITIES
Deposits	13,349,943	9,989,788
Borrowings	1,479,606	1,742,038
Accrued interest payable	6,108	5,284
Derivatives:
Cash flow hedges	1,147	4,786
Fair value hedges	6,256	1,684
Quoted Prices in Active Markets for Identical Assets Level 1
ASSETS
Cash and cash equivalents	436,032	261,199
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
Net loans	0	0
Derivatives:
Fair value hedges	0	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	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	1,945,445	1,774,821
HTM securities	585,820	499,501
Restricted stock	130,848	124,602
Loans held for sale, at fair value	55,405
Net loans	0	0
Derivatives:
Fair value hedges	182	1,872
Accrued interest receivable	52,721	46,062
Bank owned life insurance	322,917	263,034
LIABILITIES
Deposits	13,349,943	9,989,788
Borrowings	1,479,606	1,742,038
Accrued interest payable	6,108	5,284
Derivatives:
Cash flow hedges	1,147	4,786
Fair value hedges	6,256	1,684
Significant Unobservable Inputs Level 3
ASSETS
Cash and cash equivalents	0	0
Securities available for sale, at fair value	0	0
HTM securities	17,683	0
Restricted stock	0	0
Loans held for sale, at fair value	0
Net loans	12,449,505	9,534,717
Derivatives:
Fair value hedges	0	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	0
Fair value hedges	0	0
Interest Rate Swap
Derivatives:
Interest rate swap	54,345	19,426
Derivatives:
Interest rate swap	54,345	19,426
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	54,345	19,426
Derivatives:
Interest rate swap	54,345	19,426
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	436,032	261,199
Securities available for sale, at fair value	1,945,445	1,774,821
HTM securities	555,144	492,272
Restricted stock	130,848	124,602
Loans held for sale, at fair value	55,405
Net loans	12,568,642	9,675,162
Derivatives:
Fair value hedges	182	1,872
Accrued interest receivable	52,721	46,062
Bank owned life insurance	322,917	263,034
LIABILITIES
Deposits	13,304,981	9,970,960
Borrowings	1,513,748	1,756,278
Accrued interest payable	6,108	5,284
Derivatives:
Cash flow hedges	1,147	4,786
Fair value hedges	6,256	1,684
Carrying Value | Interest Rate Swap
Derivatives:
Interest rate swap	54,345	19,426
Derivatives:
Interest rate swap	$ 54,345	$ 19,426

REVENUE (Disaggregation of Reve

REVENUE (Disaggregation of Revenue) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disaggregation of Revenue
Mortgage banking income	$ 10,303	$ 0	$ 0
Gains (losses) on securities transactions	7,675	383	800
Bank owned life insurance income	8,311	7,198	6,144
Loan-related interest rate swap fees	14,126	3,554	3,051
Gain on Shore Premier sale	0	19,966	0
Other operating income	17,791	7,145	2,772
Total noninterest income	132,815	104,241	62,429
Noninterest income in Scope of Topic 606
Disaggregation of Revenue
Revenue from contract with customer	4,000	4,400	2,300
Overdraft fees
Disaggregation of Revenue
Revenue from contract with customer	24,092	21,052	15,788
Maintenance fees & other
Disaggregation of Revenue
Revenue from contract with customer	6,110	4,387	3,062
Other service charges, commissions and fees
Disaggregation of Revenue
Revenue from contract with customer	6,423	5,603	4,593
Interchange fees
Disaggregation of Revenue
Revenue from contract with customer	14,619	18,803	14,974
Trust asset management fees
Disaggregation of Revenue
Revenue from contract with customer	9,141	5,536	5,128
Registered advisor management fees
Disaggregation of Revenue
Revenue from contract with customer	10,107	6,589	2,692
Brokerage management fees
Disaggregation of Revenue
Revenue from contract with customer	4,117	$ 4,025	$ 3,425
Xenith
Disaggregation of Revenue
Life insurance proceeds	$ 9,800

EMPLOYEE BENEFITS AND STOCK B_3

EMPLOYEE BENEFITS AND STOCK BASED COMPENSATION (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Apr. 20, 2015
Defined Benefit Plan Disclosure [Line Items]
Deferred compensation plans obligation to Board of Directors	$ 15,700,000	$ 11,800,000
Maximum term of stock options	10 years
Stock options term from the grant date	2 years 6 months 18 days
Number of stock option awards exercised	56,619	72,743	63,476
Intrinsic value of stock options exercised	$ 684,000	$ 1,900,000	$ 1,200,000
Fair value of stock options exercised	2,100,000	2,800,000	2,200,000
Cash received from the exercise of stock options	1,400,000	983,000	1,000,000
Tax benefit from exercise of equity-based awards	$ 127,000	390,000	370,000
Restricted stock vesting percentage	33.33%
Intrinsic value of stock options outstanding	$ 2,313,739	$ 656,000	$ 2,700,000
Unamortized compensation costs	$ 11,374,000
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	964,713
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 restricted stock awards and performance stock units	3 years
Restricted Stock and Performance Stock Awards | Maximum
Defined Benefit Plan Disclosure [Line Items]
Vesting period of restricted stock awards and performance stock units	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%

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, 2019	Dec. 31, 2018	Dec. 31, 2017
Employee Benefits and Share-based Compensation, Noncash [Abstract]
401(K) Plan	$ 5,550	$ 4,592	$ 3,505
ESOP	1,163	1,005	1,255
Cash	780	1,509	1,461
Total	$ 7,493	$ 7,106	$ 6,221

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, 2019	Dec. 31, 2018	Dec. 31, 2017
Employee Benefits and Share-based Compensation, Noncash [Abstract]
Stock-based compensation expense	$ 8,332	$ 6,132	$ 4,648
Reduction of income tax expense	$ 1,750	$ 1,287	$ 1,467
Per share compensation cost	$ 0.08	$ 0.07	$ 0.06

EMPLOYEE BENEFITS AND STOCK B_6

EMPLOYEE BENEFITS AND STOCK BASED COMPENSATION (Summary of Stock Option Activity) (Details) - USD ($)	Feb. 01, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Stock Options (shares)
Number of Stock Options, Outstanding beginning balance		47,585
Number of Stock Options, Exercised		(56,619)	(72,743)	(63,476)
Number of Stock Options, Forfeited		(9,447)
Number of Stock Options, Expired		(8,060)
Number of Stock Options, Outstanding ending balance		422,138	47,585
Number of Stock Options, Exercisable		368,146
Weighted Average Exercise Price
Weighted Average Exercise Price, Outstanding, beginning balance (in dollars per share)		$ 14.44
Weighted Average Exercise Price, Exercised (in dollars per share)		24.48
Weighted Average Exercise Price, Forfeited (in dollars per share)		31.94
Weighted Average Exercise Price, Expired (in dollars per share)		36.78
Weighted Average Exercise Price, Outstanding, beginning balance (in dollars per share)		32.48	$ 14.44
Weighted Average Exercise Price, Exercisable (in dollars per share)		$ 32.57
Weighted Average Remaining Contractual Life, Outstanding		2 years 6 months 18 days
Weighted Average Remaining Contractual Life, Exercisable		2 years 3 months 29 days
Aggregate Intrinsic Value, Outstanding		$ 2,313,739	$ 656,000	$ 2,700,000
Aggregate Intrinsic Value, Exercisable		$ 2,006,915
Access National Bank
Stock Options (shares)
Options assumed in the Access acquisition	448,679
Weighted Average Exercise Price
Weighted average exercise price, Options assumed in the Access acquisition	$ 33.45

EMPLOYEE BENEFITS AND STOCK B_7

EMPLOYEE BENEFITS AND STOCK BASED COMPENSATION (Summary of Nonvested Stock Activity) (Details)	12 Months Ended
	Dec. 31, 2019$ / sharesshares
Restricted Stock
Number of Shares of RSAs
Beginning balance (in shares) | shares	375,414
Granted (in shares) | shares	273,718
Net settle for taxes (in shares) | shares	(52,253)
Vested (in shares) | shares	(148,584)
Forfeited (in shares) | shares	(16,653)
Ending balance (in shares) | shares	431,642
Weighted Average Grant-Date Fair Value
Weighted Average Grant Date Fair Value, Beginning balance (in dollars per share) | $ / shares	$ 32.41
Weighted Average Grant Date Fair Value, Granted (in dollars per share) | $ / shares	35.06
Weighted Average Grant Date Fair Value, Net settle for taxes (in dollars per share) | $ / shares	52.01
Weighted Average Grant Date Fair Value, Vested (in dollars per share) | $ / shares	30.78
Weighted Average Grant Date Fair Value, Forfeited (in dollars per share) | $ / shares	34.31
Weighted Average Grant Date Fair Value, Ending balance (in dollars per share) | $ / shares	$ 34.90
Performance Stock
Number of Shares of RSAs
Beginning balance (in shares) | shares	150,047
Granted (in shares) | shares	85,543
Net settle for taxes (in shares) | shares	(15,018)
Vested (in shares) | shares	(69,205)
Forfeited (in shares) | shares	(6,658)
Ending balance (in shares) | shares	144,709
Weighted Average Grant-Date Fair Value
Weighted Average Grant Date Fair Value, Beginning balance (in dollars per share) | $ / shares	$ 31.67
Weighted Average Grant Date Fair Value, Granted (in dollars per share) | $ / shares	33.66
Weighted Average Grant Date Fair Value, Net settle for taxes (in dollars per share) | $ / shares	34.63
Weighted Average Grant Date Fair Value, Vested (in dollars per share) | $ / shares	24.27
Weighted Average Grant Date Fair Value, Forfeited (in dollars per share) | $ / shares	36.08
Weighted Average Grant Date Fair Value, Ending balance (in dollars per share) | $ / shares	$ 37.24

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, 2019	Dec. 31, 2018	Dec. 31, 2017
Schedule of Performance Stock Units Valuation Assumptions
Dividend yield	2.57%	2.25%	2.15%
Expected life in years	2 years 10 months 9 days	2 years 10 months 9 days	2 years 10 months 6 days
Expected volatility	24.04%	23.47%	23.35%
Risk-free interest rate	2.48%	2.38%	1.40%

EMPLOYEE BENEFITS AND STOCK B_9

EMPLOYEE BENEFITS AND STOCK BASED COMPENSATION (Estimated Unamortized Compensation Expense Recognized in Future) (Details) $ in Thousands	Dec. 31, 2019USD ($)
Estimated unamortized compensation expense recognized in future
2020	$ 6,436
2021	4,186
2022	652
2023	100
Total	11,374
Restricted Stock
Estimated unamortized compensation expense recognized in future
2020	5,030
2021	3,299
2022	652
2023	100
Total	9,081
Performance Stock
Estimated unamortized compensation expense recognized in future
2020	1,406
2021	887
2022	0
2023	0
Total	$ 2,293

INCOME TAXES (Narrative) (Detai

INCOME TAXES (Narrative) (Details) - USD ($)	Dec. 22, 2017	Dec. 21, 2017	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Examination [Line Items]
Federal statutory income tax rate, percent	21.00%	35.00%
Tax expense due to the tax act			$ 0	$ 0	$ 6,105,000
Effective income taxes			16.20%	16.70%	31.20%
Tax credits			$ 2,900,000	$ 1,100,000	$ 858,000
Accruals for uncertain tax positions			0	$ 0
Federal
Income Tax Examination [Line Items]
Operating loss carryforwards			$ 222,000,000
Operating loss carryforwards, limitations on use			operating loss carryforwards of approximately $222.0 million, of which approximately $201.2 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			$ 283,600,000
Operating loss carryforwards, limitations on use			operating loss carryforwards of approximately $283.6 million, of which approximately $233.2 million will begin to expire after 2026, and $50.4 million that can be carried forward indefinitely.
Operating loss carryforward subject to expiration			$ 233,200,000
Operating loss carryforward not subject to expiration			$ 50,400,000
Operating loss carryforwards expiration date			Dec. 31, 2026
Pre-2018 | Federal
Income Tax Examination [Line Items]
Tax carryforward			$ 201,200,000
Post-2018 | Federal
Income Tax Examination [Line Items]
Tax carryforward			$ 20,800,000

INCOME TAXES (Schedule of Defer

INCOME TAXES (Schedule of Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Deferred tax assets:
Allowance for loan losses	$ 18,938	$ 19,369
Benefit plans	3,507	3,925
Acquisition accounting	16,021	11,788
Lease right-of-Use Asset	13,507	0
Stock grants	2,032	894
OREO	3,295	2,515
Securities available for sale	1,169	1,577
Net operating losses	55,023	66,037
Nonaccrual loans	3,243	3,990
Other	4,227	4,618
Total deferred tax assets	120,962	114,713
Deferred tax liabilities:
Acquisition accounting	19,815	13,053
Lease right-of-use liability	11,191	0
Premises and equipment	6,696	3,877
Securities available for sale	10,069	25
Other	511	583
Total deferred tax liabilities	48,282	17,538
Net deferred tax asset	$ 72,680	$ 97,175

INCOME TAXES (Provision for Inc

INCOME TAXES (Provision for Income Taxes Charged to Operations) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Deferred Tax Assets, Net [Abstract]
Current tax expense	$ 22,500	$ 12,114	$ 27,255
Deferred tax expense	15,057	17,902	5,535
Income tax expense	$ 37,557	$ 30,016	$ 32,790

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, 2019	Dec. 31, 2018	Dec. 31, 2017
Deferred Tax Assets, Net [Abstract]
Computed expected tax expense	$ 48,564	$ 37,680	$ 36,738
Tax-exempt interest income, net	(8,259)	(5,188)	(6,112)
Valuation allowance adjustment	0	0	(2,982)
Impact of the Tax Act	0	0	6,105
State income tax benefit	(1,078)	(1,133)	0
Other, net	(1,670)	(1,343)	(959)
Income tax expense	$ 37,557	$ 30,016	$ 32,790

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, 2019	Dec. 31, 2018	Dec. 31, 2017
Net Income:
Income from continuing operations	$ 193,698	$ 149,413	$ 72,176
Income (loss) from discontinued operations	(170)	(3,165)	747
Net Income (Loss) Available to Common Stockholders, Basic, Total	$ 193,528	$ 146,248	$ 72,923
Basic weighted average number of common shares outstanding (in shares)	80,200,950	65,859,165	43,698,897
Dilutive effect of stock awards and warrants	63,000	50,000	81,000
Weighted average shares outstanding, diluted	80,263,557	65,908,573	43,779,744
Basic EPS:
Earnings per share from continuing operations, basic (dollar per share)	$ 2.41	$ 2.27	$ 1.65
Earnings per share from discontinued operations, basic (dollar per share)	0	(0.05)	0.02
Earnings per share available to common shareholders, basic (dollar per share)	2.41	2.22	1.67
Diluted EPS:
Earnings per share from continuing operations, diluted (dollar per share)	2.41	2.27	1.65
Earnings per share from discontinued operations, diluted (dollar per share)	0	(0.05)	0.02
Earnings per share available to common shareholders, diluted (dollar per share)	$ 2.41	$ 2.22	$ 1.67

SEGMENT REPORTING & DISCONTIN_3

SEGMENT REPORTING & DISCONTINUED OPERATIONS (Narrative) (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Segment Reporting [Abstract]
Assets of discontinued operations	$ 668,000	$ 1,479,000
Liabilities of discontinued operations	640,000	$ 1,687,000
Loans held for sale, at fair value	$ 55,405,000

SEGMENT REPORTING & DISCONTIN_4

SEGMENT REPORTING & DISCONTINUED OPERATIONS (Information About Reportable Segments and Reconciliation) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Segment Reporting Information [Line Items]
Net interest income	$ 537,872	$ 426,691	$ 279,007
Provision for credit losses	21,092	13,736	10,802
Net interest income after provision for credit losses	516,780	412,955	268,205
Noninterest income	132,815	104,241	62,429
Noninterest expenses	418,340	337,767	225,668
Income tax expense (benefit)	(60)	(1,115)	597
Mortgage | Discontinued Operations
Segment Reporting Information [Line Items]
Net interest income	0	850	1,150
Provision for credit losses	0	(185)	(46)
Net interest income after provision for credit losses	0	1,035	1,196
Noninterest income	1	3,882	9,245
Noninterest expenses	231	9,197	9,097
Income before income taxes	(230)	(4,280)	1,344
Income tax expense (benefit)	(60)	(1,115)	597
Net income (loss) on discontinued operations	$ (170)	$ (3,165)	$ 747

PARENT COMPANY FINANCIAL INFO_3

PARENT COMPANY FINANCIAL INFORMATION (Narrative) (Details) - Parent Company $ in Millions	Dec. 31, 2019USD ($)
Aggregate amount of unrestricted funds	$ 383.7
Aggregate amount of unrestricted funds percentage	15.27%

PARENT COMPANY FINANCIAL INFO_4

PARENT COMPANY FINANCIAL INFORMATION (Financial Information for the Parent Company - Balance Sheets) (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
ASSETS
Cash	$ 436,032,000	$ 261,199,000	$ 199,373,000	$ 179,237,000
Premises and equipment, net	161,073,000	146,967,000
Other assets	377,587,000	250,210,000
Total assets	17,562,990,000	13,765,599,000
LIABILITIES AND STOCKHOLDERS' EQUITY
Other short-term borrowings	0	5,000,000
Long-term borrowings	1,077,495,000	668,481,000
Other liabilities	230,519,000	112,093,000
Total liabilities	15,049,888,000	11,841,018,000
Total stockholders' equity	2,513,102,000	1,924,581,000	1,046,329,000	1,001,032,000
Total liabilities and stockholders' equity	17,562,990,000	13,765,599,000
Parent Company
ASSETS
Cash	5,283,000	3,681,000	$ 2,611,000	$ 10,681,000
Premises and equipment, net	10,568,000	10,637,000
Other assets	27,438,000	13,386,000
Investment in subsidiaries	2,786,842,000	2,202,530,000
Total assets	2,830,131,000	2,230,234,000
LIABILITIES AND STOCKHOLDERS' EQUITY
Other short-term borrowings	0	5,000,000
Long-term borrowings	157,155,000	157,057,000
Trust preferred capital notes	140,237,000	134,342,000
Other liabilities	19,637,000	9,254,000
Total liabilities	317,029,000	305,653,000
Total stockholders' equity	2,513,102,000	1,924,581,000
Total liabilities and stockholders' equity	$ 2,830,131,000	$ 2,230,234,000

PARENT COMPANY FINANCIAL INFO_5

PARENT COMPANY FINANCIAL INFORMATION (Financial Information for the Parent Company - Statements of Income and Comprehensive Income) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income:
Interest and dividend income	$ 699,332	$ 528,788	$ 329,044
Other operating income	17,791	7,145	2,772
Expenses:
Interest expense	161,460	102,097	50,037
Other expenses	13,822	11,308	8,544
Income before income taxes	231,255	179,429	104,966
Income tax benefit	37,557	30,016	32,790
Net income	193,528	146,248	72,923
Parent Company
Income:
Interest and dividend income	3	0	3
Dividends received from subsidiaries	160,033	50,750	33,350
Other operating income	1,484	2,719	1,308
Total income	161,520	53,469	34,661
Expenses:
Interest expense	15,935	15,253	11,423
Other expenses	11,434	13,782	7,130
Total expenses	27,369	29,035	18,553
Income before income taxes	134,151	24,434	16,108
Income tax benefit	(6,499)	(6,176)	(9,169)
Equity in undistributed net income from subsidiaries	52,878	115,638	47,646
Net income	193,528	146,248	72,923
Comprehensive income	$ 239,376	$ 136,905	$ 75,848

PARENT COMPANY FINANCIAL INFO_6

PARENT COMPANY FINANCIAL INFORMATION (Financial Information for the Parent Company - Statements of Cash Flows) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Operating activities:
Net income	$ 193,528	$ 146,248	$ 72,923
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation of premises and equipment	15,032	13,725	11,183
Amortization (accretion) related to acquisition, net	(7,899)	(6,711)	(866)
Issuance of common stock for services	910	914	724
Net (increase) decrease in other assets	(57,348)	(26,606)	(5,785)
Net increase in other liabilities	12,910	24,005	5,352
Net cash and cash equivalents provided by operating activities	194,799	216,765	110,333
Investing activities:
Net increase in premises and equipment	(15,892)	1,698	(9,261)
Cash paid in acquisitions	(12)	(14,304)	(231)
Cash received in acquisitions	46,164	174,496	5,038
Net cash and cash equivalents provided by (used in) investing activities	(425,401)	(770,039)	(885,753)
Financing activities:
Net increase (decrease) in short-term borrowings	(872,229)	58,645	217,371
Proceeds from issuance of long-term borrowings	550,000	225,000	20,000
Cash dividends paid - common stock	(78,345)	(58,001)	(35,393)
Cancellation of warrants	0	(1,530)	0
Vesting of restricted stock, net of shares held for taxes	(2,301)	(2,908)	(1,567)
Net cash and cash equivalents provided by (used in) financing activities	405,435	615,100	795,556
Net increase (decrease) in cash and cash equivalents	174,833	61,826	20,136
Cash and cash equivalents at beginning of the period	261,199	199,373	179,237
Cash and cash equivalents at end of the period	436,032	261,199	199,373
Supplemental schedule of noncash investing and financing activities
Issuance of common stock in regard to acquisitions	499,974	794,809	0
Assets acquired	2,849,673	3,253,328	293
Liabilities assumed	2,558,063	2,873,718	5,437
Parent Company
Operating activities:
Net income	193,528	146,248	72,923
Adjustments to reconcile net income to net cash provided by operating activities:
Equity in undistributed net income of subsidiaries	(52,878)	(115,638)	(47,646)
Depreciation of premises and equipment	424	424	439
Amortization (accretion) related to acquisition, net	662	636	260
Gain on sale of investment	0	(1,416)	0
Issuance of common stock for services	910	914	724
Net (increase) decrease in other assets	(3,256)	(584)	(4,167)
Net increase in other liabilities	4,964	(4,159)	5,283
Net cash and cash equivalents provided by operating activities	144,354	26,425	27,816
Investing activities:
Net increase in premises and equipment	(355)	0	(35)
Proceeds from sale of investment	0	3,761	0
Proceeds from (payments for) equity method investment	0	0	72
Cash paid in acquisitions	(12)	0	0
Cash received in acquisitions	21,553	25,976	0
Net cash and cash equivalents provided by (used in) investing activities	21,186	29,737	37
Financing activities:
Net increase (decrease) in short-term borrowings	(5,000)	5,000	0
Cash dividends paid - common stock	(78,345)	(58,001)	(35,393)
Cancellation of warrants	0	(1,530)	0
Issuance (repurchase) of common stock	(78,292)	2,347	1,037
Vesting of restricted stock, net of shares held for taxes	(2,301)	(2,908)	(1,567)
Net cash and cash equivalents provided by (used in) financing activities	(163,938)	(55,092)	(35,923)
Net increase (decrease) in cash and cash equivalents	1,602	1,070	(8,070)
Cash and cash equivalents at beginning of the period	3,681	2,611	10,681
Cash and cash equivalents at end of the period	5,283	3,681	2,611
Supplemental schedule of noncash investing and financing activities
Issuance of common stock in regard to acquisitions	499,974	794,809	0
Assets acquired	509,075	859,176	0
Liabilities assumed	$ 9,089	$ 64,367	$ 0