Atlantic Union Bankshares (AUB) 10-Q 5 Aug 20 2020 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2020	Jul. 29, 2020
Entity Registrant Name	ATLANTIC UNION BANKSHARES CORP
Entity Central Index Key	0000883948
Document Type	10-Q
Document Quarterly Report	true
Document Transition Report	false
Entity File Number	000-20293
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
Document Period End Date	Jun. 30, 2020
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Amendment Flag	false
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2020
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		78,711,847
Common Stock, Class A
Title of 12(b) Security	Common Stock, par value $1.33 per share
Trading Symbol	AUB
Security Exchange Name	NASDAQ
Series A Preferred Stock
Title of 12(b) Security	Depositary Shares, Each Representing a 1/400th Interest in a Share of 6.875% Perpetual Non-Cumulative Preferred Stock, Series A
Trading Symbol	AUBAP
Security Exchange Name	NASDAQ

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Cash and cash equivalents:
Cash and due from banks	$ 202,947	$ 163,050
Interest-bearing deposits in other banks	636,211	234,810
Federal funds sold	2,862	38,172
Total cash and cash equivalents	842,020	436,032
Securities available for sale, at fair value	2,019,164	1,945,445
Securities held to maturity, at carrying value	547,561	555,144
Restricted stock, at cost	105,832	130,848
Loans held for sale, at fair value	55,067	55,405
Loans held for investment, net of deferred fees and costs	14,308,646	12,610,936
Less allowance for loan losses	169,977	42,294
Total loans held for investment, net	14,138,669	12,568,642
Premises and equipment, net	164,321	161,073
Goodwill	935,560	935,560
Amortizable intangibles, net	65,105	73,669
Bank owned life insurance	327,075	322,917
Other assets	551,943	378,255
Total assets	19,752,317	17,562,990
LIABILITIES
Noninterest-bearing demand deposits	4,345,960	2,970,139
Interest-bearing deposits	11,259,179	10,334,842
Total deposits	15,605,139	13,304,981
Securities sold under agreements to repurchase	77,216	66,053
Other short-term borrowings	0	370,200
Long-term borrowings	1,047,814	1,077,495
Other liabilities	403,922	231,159
Total liabilities	17,134,091	15,049,888
Commitments and contingencies (Note 8)
STOCKHOLDERS' EQUITY
Preferred stock, $10.00 par value	173	0
Common stock, $1.33 par value	104,126	105,827
Additional paid-in capital	1,911,985	1,790,305
Retained earnings	540,638	581,395
Accumulated other comprehensive income (loss)	61,304	35,575
Total stockholders' equity	2,618,226	2,513,102
Total liabilities and stockholders' equity	$ 19,752,317	$ 17,562,990
Common shares outstanding	78,713,056	80,001,185
Common shares authorized	200,000,000	200,000,000
Preferred shares outstanding	17,250	0
Preferred shares authorized	500,000	500,000

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Jun. 30, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Preferred stock, par value (in dollars per share)	$ 10
Common stock, par value (in dollars per share)	$ 1.33	$ 1.33

CONSOLIDATED STATEMENTS OF INCO

CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Interest and dividend income:
Interest and fees on loans	$ 143,234	$ 158,838	$ 294,361	$ 302,952
Interest on deposits in other banks	155	544	1,017	1,017
Interest and dividends on securities:
Taxable	11,267	13,353	22,895	26,434
Nontaxable	8,211	8,390	15,920	16,374
Total interest and dividend income	162,867	181,125	334,193	346,777
Interest expense:
Interest on deposits	19,861	28,809	48,375	53,239
Interest on short-term borrowings	186	5,563	1,526	12,114
Interest on long-term borrowings	5,515	8,159	11,979	15,283
Total interest expense	25,562	42,531	61,880	80,636
Net interest income	137,305	138,594	272,313	266,141
Provision for credit losses	34,200	5,300	94,396	9,092
Net interest income after provision for credit losses	103,105	133,294	177,917	257,049
Noninterest income:
Mortgage banking income	5,826	2,785	7,847	4,240
Gains on securities transactions	10,339	51	12,275	202
Bank owned life insurance income	2,027	2,075	4,076	4,129
Loan-related interest rate swap fees	5,484	3,716	9,432	5,176
Other operating income	(1,240)	1,440	902	2,337
Total noninterest income	35,932	30,578	64,838	55,515
Noninterest expenses:
Salaries and benefits	49,896	50,390	100,013	98,398
Occupancy expenses	7,224	7,534	14,357	14,935
Furniture and equipment expenses	3,406	3,542	7,147	6,938
Printing, postage, and supplies	999	1,252	2,289	2,494
Technology and data processing	6,454	5,739	12,623	11,415
Professional services	2,989	2,630	6,297	5,587
Marketing and advertising expense	2,043	2,908	4,782	5,291
FDIC assessment premiums and other insurance	2,907	2,601	5,768	5,239
Other taxes	4,120	4,044	8,240	7,808
Loan-related expenses	2,501	2,396	5,198	4,685
OREO and credit-related expenses	411	1,473	1,099	2,157
Amortization of intangible assets	4,223	4,937	8,624	9,154
Training and other personnel costs	876	1,477	2,446	2,621
Merger-related costs	0	6,371	0	24,493
Rebranding expense	0	4,012	0	4,420
Loss on debt extinguishment	10,306		10,306	0
Other expenses	4,459	4,302	9,270	6,700
Total noninterest expenses	102,814	105,608	198,459	212,335
Income from continuing operations before income taxes	36,223	58,264	44,296	100,229
Income tax expense	5,514	9,356	6,498	15,606
Income from continuing operations	30,709	48,908	37,798	84,623
Discontinued operations:
Income (loss) from operations of discontinued mortgage segment	0	(114)	0	(229)
Income tax expense (benefit)	0	(29)	0	(59)
Income (loss) on discontinued operations	0	(85)	0	(170)
Net income	30,709	48,823	37,798	84,453
Net Income available to common shareholders	$ 30,709	$ 48,823	$ 37,798	$ 84,453
Basic earnings per common share (in dollars per share)	$ 0.39	$ 0.59	$ 0.48	$ 1.06
Diluted earnings per common share (in dollars per share)	0.39	0.59	0.48	1.06
Dividends declared per common share (in dollars per share)	$ 0.25	$ 0.23	$ 0.50	$ 0.46
Weighted average shares outstanding, basic (in shares)	78,711,765	82,062,585	79,001,058	79,282,830
Diluted weighted average number of common shares outstanding (in shares)	78,722,690	82,125,194	79,020,036	79,344,573
Service charges on deposit accounts
Noninterest income:
Noninterest income	$ 4,930	$ 7,499	$ 12,508	$ 14,656
Other service charges, commissions and fees
Noninterest income:
Noninterest income	1,354	1,702	2,978	3,367
Interchange fees
Noninterest income:
Noninterest income	1,697	5,612	3,321	10,656
Fiduciary and asset management fees
Noninterest income:
Noninterest income	$ 5,515	$ 5,698	$ 11,499	$ 10,752

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Net income		$ 30,709	$ 48,823	$ 37,798	$ 84,453
Cash flow hedges:
Change in fair value of cash flow hedges		0	(2,595)	(699)	(4,055)
Reclassification adjustment for losses included in net income (net of tax, $0 and $46 for the three months and $394 and $78 for the six months ended June 30, 2020 and 2019, respectively)	[1]	0	173	1,481	293
AFS securities:
Unrealized holding gains arising during period (net of tax, $5,587 and $5,888 for the three months and $9,492 and $11,226 for the six months ended June 30, 2020 and 2019, respectively)		21,019	22,151	35,706	42,233
Reclassification adjustment for gains included in net income (net of tax, $2,171 and $20 for the three months and $2,578 and $42 for the six months ended June 30, 2020 and 2019, respectively)	[2]	(8,168)	(73)	(9,697)	(159)
HTM securities:
Reclassification adjustment for accretion of unrealized gain on AFS securities transferred to HTM (net of tax, $1 and $1 for the three months and $3 and $3 for the six months ended June 30, 2020 and 2019, respectively)	[3]	(5)	(5)	(10)	(10)
Bank owned life insurance:
Unrealized holding losses arising during the period		0	0	(1,289)	0
Reclassification adjustment for losses included in net income	[4]	129	19	237	38
Other comprehensive income (loss)		12,975	19,670	25,729	38,340
Comprehensive income		$ 43,684	$ 68,493	63,527	$ 122,793
Cash Flow Hedging
Bank owned life insurance:
Unrealized gain within accumulated other comprehensive income, to be reclassified into earnings				$ 1,800
[1]	The gross amounts reclassified into earnings for the six months ended June 30, 2020 included a $1.8 million loss related to the termination of a cash flow hedge that is reported in “Other operating income” with the corresponding income tax effect being reflected as a component of income tax expense. The remaining gross amounts are reported in the interest income and interest expense sections of the Company’s Consolidated Statements of Income with the corresponding income tax effect being reflected as a component of income tax expense.
[2]	The gross amounts reclassified into earnings are reported as "Gains (losses) on securities transactions " on the Company’s Consolidated Statements of Income with the corresponding income tax effect being reflected as a component of income tax expense.
[3]	The gross amounts reclassified into earnings are reported within interest income on the Company’s Consolidated Statements of Income with the corresponding income tax effect being reflected as a component of income tax expense.
[4]	Reclassifications in earnings are reported in "Salaries and benefits" expense on the Company’s Consolidated Statements of Income.

CONSOLIDATED STATEMENTS OF CO_2

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Statement of Comprehensive Income [Abstract]
Tax expense (benefit) related to reclassification adjustment for losses included in net income	$ 0	$ (46)	$ (394)	$ (78)
Tax expense (benefit) related to unrealized holding gains (losses) arising during period	5,587	5,888	9,492	11,226
Tax expense (benefit) related to gains on the sale of securities	2,171	20	2,578	42
Tax expense (benefit) related to unrealized gain for AFS securities transferred to HTM	$ 1	$ 1	$ 3	$ 3

CONSOLIDATED STATEMENTS OF CHAN

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock	Preferred Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Total
Beginning balance at Dec. 31, 2018	$ 87,250		$ 1,380,259	$ 467,345	$ (10,273)	$ 1,924,581
Net income				35,631		35,631
Other comprehensive income (net of taxes)					18,670	18,670
Issuance of common stock in regard to acquisitions	21,070		478,904			499,974
Dividends on common stock				(18,838)		(18,838)
Issuance of common stock under Equity Compensation Plans	8		130			138
Issuance of common stock for services rendered	8		211			219
Vesting of restricted stock, including tax effects, under Equity Compensation Plan	139		(1,786)			(1,647)
Impact of adoption of new guidance				(1,133)		(1,133)
Stock-based compensation expense			1,870			1,870
Ending balance at Mar. 31, 2019	108,475		1,859,588	483,005	8,397	2,459,465
Beginning balance at Dec. 31, 2018	87,250		1,380,259	467,345	(10,273)	1,924,581
Net income						84,453
Other comprehensive income (net of taxes)					38,340	38,340
Issuance of common stock in regard to acquisitions						499,974
Ending balance at Jun. 30, 2019	108,560		1,862,716	512,952	28,067	2,512,295
Beginning balance at Mar. 31, 2019	108,475		1,859,588	483,005	8,397	2,459,465
Net income				48,823		48,823
Other comprehensive income (net of taxes)					19,670	19,670
Dividends on common stock				(18,876)		(18,876)
Issuance of common stock under Equity Compensation Plans	48		938			986
Issuance of common stock for services rendered	8		192			200
Vesting of restricted stock, including tax effects, under Equity Compensation Plan	29		(336)			(307)
Stock-based compensation expense			2,334			2,334
Ending balance at Jun. 30, 2019	108,560		1,862,716	512,952	28,067	2,512,295
Beginning balance at Dec. 31, 2019	105,827		1,790,305	581,395	35,575	2,513,102
Net income				7,089		7,089
Other comprehensive income (net of taxes)					12,754	12,754
Dividends on common stock				(19,825)		(19,825)
Stock purchased under stock repurchase plan	(1,985)		(47,894)			(49,879)
Issuance of common stock under Equity Compensation Plans	46		731			777
Issuance of common stock for services rendered	9		195			204
Vesting of restricted stock, including tax effects, under Equity Compensation Plan	189		(2,199)			(2,010)
Impact of adoption of new guidance | Accounting Standards Update 2016-02				(39,053)		(39,053)
Stock-based compensation expense			2,291			2,291
Ending balance at Mar. 31, 2020	104,086		1,743,429	529,606	48,329	2,425,450
Beginning balance at Dec. 31, 2019	105,827		1,790,305	581,395	35,575	2,513,102
Net income						37,798
Other comprehensive income (net of taxes)					25,729	25,729
Issuance of common stock in regard to acquisitions						0
Impact of adoption of new guidance | Accounting Standards Update 2016-13						(39,100)
Ending balance at Jun. 30, 2020	104,126	$ 173	1,911,985	540,638	61,304	2,618,226
Beginning balance at Mar. 31, 2020	104,086		1,743,429	529,606	48,329	2,425,450
Net income				30,709		30,709
Other comprehensive income (net of taxes)					12,975	12,975
Issuance of preferred stock		173	166,190			166,363
Dividends on common stock				(19,677)		(19,677)
Issuance of common stock under Equity Compensation Plans	2		22			24
Issuance of common stock for services rendered	11		189			200
Vesting of restricted stock, including tax effects, under Equity Compensation Plan	27		(206)			(179)
Stock-based compensation expense			2,361			2,361
Ending balance at Jun. 30, 2020	$ 104,126	$ 173	$ 1,911,985	$ 540,638	$ 61,304	$ 2,618,226

CONSOLIDATED STATEMENTS OF CH_2

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019
Statement of Stockholders' Equity [Abstract]
Other comprehensive income (loss), tax	$ 3,415	$ 3,890	$ 5,913	$ 5,346
Issuance of Common Stock in regard to acquisition, shares				15,842,026
Issuance of preferred stock, shares	17,250
Dividends on common stock (in dollars per share)	$ 0.25	$ 0.25	$ 0.23	$ 0.23
Issuance of common stock under Equity Compensation Plan, shares	1,632	34,714	36,551	6,127
Stock purchased under stock repurchase plan, shares		1,493,472
Issuance of common stock for services rendered, shares	8,640	6,860	6,192	6,085
Vesting of restricted stock, net of shares held for taxes, under Equity Compensation Plans, shares	19,848	142,176	21,447	104,151

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Operating activities:
Net income	$ 37,798	$ 84,453
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation of premises and equipment	7,517	7,368
Write-down of foreclosed properties and former bank premises	95	852
Amortization, net	12,749	12,917
Amortization (accretion) related to acquisition, net	(7,591)	(4,704)
Provision for credit losses	94,396	9,092
Gains on securities transactions, net	(12,275)	(202)
BOLI income	(4,076)	(4,129)
Decrease (increase) in loans held for sale, net	338	(41,681)
Losses (gains) on sales of foreclosed properties and former bank premises, net	10	147
Loss on debt extinguishment	10,306	0
Stock-based compensation expenses	4,652	4,204
Issuance of common stock for services	404	419
Net decrease (increase) in other assets	(172,997)	(54,426)
Net increase in other liabilities	151,888	15,710
Net cash provided by (used in) operating activities	123,214	30,020
Investing activities:
Purchases of AFS securities and restricted stock	(403,272)	(253,324)
Purchases of HTM securities	0	(47,217)
Proceeds from sales of AFS securities and restricted stock	228,271	387,949
Proceeds from maturities, calls and paydowns of AFS securities	171,345	108,115
Proceeds from maturities, calls and paydowns of HTM securities	5,927	1,410
Net increase in loans held for investment	(1,687,499)	(348,515)
Net increase in premises and equipment	(10,884)	(5,691)
Proceeds from sales of foreclosed properties and former bank premises	2,452	1,035
Cash paid in acquisitions	0	(12)
Cash acquired in acquisitions	0	46,164
Net cash provided by (used in) investing activities	(1,693,660)	(110,086)
Financing activities:
Net increase in noninterest-bearing deposits	1,375,821	235,882
Net increase in interest-bearing deposits	924,421	82,134
Net increase (decrease) in short-term borrowings	(359,037)	(619,562)
Cash paid for contingent consideration	0	(565)
Proceeds from issuance of long-term debt	189,941	500,000
Repayments of long-term debt	(230,306)	(20,000)
Cash dividends paid - common stock	(39,502)	(37,714)
Repurchase of common stock	(49,879)	0
Issuance of common stock	801	1,124
Issuance of preferred stock, net	166,363	0
Vesting of restricted stock, net of shares held for taxes	(2,189)	(1,954)
Net cash provided by (used in) financing activities	1,976,434	139,345
Increase (decrease) in cash and cash equivalents	405,988	59,279
Cash, cash equivalents and restricted cash at beginning of the period	436,032	261,199
Cash, cash equivalents and restricted cash at end of the period	842,020	320,478
Cash payments for:
Interest	63,198	77,838
Income taxes	106	7,426
Supplemental schedule of noncash investing and financing activities
Transfers from loans (foreclosed properties) to foreclosed properties (loans)	615	1,171
Issuance of common stock in exchange for net assets in acquisition	0	499,974
Transactions related to acquisitions
Assets acquired	0	2,855,359
Liabilities assumed	$ 0	$ 2,558,638

ACCOUNTING POLICIES

ACCOUNTING POLICIES	6 Months Ended
	Jun. 30, 2020
Accounting Policies [Abstract]
ACCOUNTING POLICIES	1. ACCOUNTING POLICIES The Company Headquartered in Richmond, Virginia, Atlantic Union Bankshares Corporation (Nasdaq: AUB) is the holding company for Atlantic Union Bank. Atlantic Union Bank has 149 branches and approximately 170 ATMs located throughout Virginia, and in portions of Maryland and North Carolina. Middleburg Financial is a brand name used by Atlantic Union Bank and certain affiliates when providing trust, wealth management, private banking, and investment advisory products and services. Certain non-bank affiliates of Atlantic Union Bank include: Old Dominion Capital Management, Inc., and its subsidiary, Outfitter Advisors, Ltd., Dixon, Hubard, Feinour, & Brown, Inc., and Middleburg Investment Services, LLC, which provide investment advisory and/or brokerage services; and Union Insurance Group, LLC, which offers various lines of insurance products. ​ The unaudited consolidated financial statements have been prepared in accordance with U.S. GAAP for interim financial information and follow general practice within the banking industry. Accordingly, the unaudited consolidated financial statements do not include all the information and footnotes required by U.S. GAAP for complete financial statements; however, in the opinion of management, all adjustments necessary for a fair presentation of the results of the interim periods presented have been made. The results of operations for the interim periods are not necessarily indicative of the results that may be expected for the full year or any other period. ​ These unaudited consolidated financial statements should be read in conjunction with the Company’s audited consolidated financial statements and notes thereto included in the Company’s 2019 Form 10-K. Certain prior period amounts have been reclassified to conform to current period presentation. ​ Impact of COVID-19 On March 13, 2020, the United States President declared a national emergency in the face of a growing public health and economic crisis due to the COVID-19 global pandemic. Within a few days of the declaration of a national emergency, governors of states comprising the Company’s geographic footprint issued states of emergency in response to the novel COVID-19. As a result of this pandemic, actions were taken around the world to help mitigate the spread of COVID 19, which have impacted the economies and financial markets of many countries, including the geographical area in which the Company operates. On March 27, 2020, the CARES Act was signed into law. The CARES Act is designated to provide financial relief to the American people and American businesses in response to the economic fallout from COVID-19. On March 22, 2020, the five federal bank regulatory agencies and the Conference of State Bank Supervisors issued joint guidance (subsequently revised on April 7, 2020) with respect to loan modifications for borrowers affected by COVID-19. The CARES Act, as well as the March 22 Joint Guidance, provide enhanced guidelines and accounting for COVID-19 related modifications. ​ The federal banking regulators have confirmed with FASB that short-term loan modifications made on a good faith basis in response to COVID-19 to borrowers who were current (i.e., less than 30 days past due on contractual payments) prior to any loan modification are not TDRs. In addition, Section 4013 of the CARES Act provides banks, savings associations, and credit unions with the ability to make loan modifications related to COVID-19 without categorizing the loan as a TDR or conducting the analysis to make the determination, which is intended to streamline the loan modification process. Any such suspension is effective for the term of the loan modification; however, the suspension is only permitted for loan modifications made during the effective period of Section 4013 and only for those loans that were not more than thirty days past due as of December 31, 2019. The Company has made $1.8 billion of loan modifications pursuant to the March 22 Joint Guidance or Section 4013 of the CARES Act and as of June 30, 2020 approximately $1.6 billion remain under their modified terms. ​ During the second quarter of 2020, the Company continued to participate in the SBA PPP under the CARES Act. The Company processed over 11,000 loans, which totaled $1.7 billion with a recorded investment of $1.6 billion as of June 30, 2020, through the SBA PPP. The loans carry a 1% interest rate and the Company recorded net PPP loan origination fees of approximately $50.2 million, which are being amortized over a 24-month period. ​ Adoption of New Accounting Standards On January 1, 2020, the Company adopted ASC 326. This ASU updates the existing guidance to provide financial statement users with more decision-useful information about the expected credit losses on financial instruments and other commitments to extend credit held by a reporting entity at each reporting date. This ASU replaces the incurred loss impairment methodology in current GAAP with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. The measurement of expected credit losses under the CECL methodology is applicable to financial assets measured at amortized cost, including loan receivables and held-to- maturity debt securities. It also applies to unfunded credit exposures not accounted for as insurance (loan commitments, standby letters of credit, financial guarantees, and other similar instruments). The Company established a cross-functional governance structure to oversee the Company’s implementation of the CECL methodology, which included evaluating key assumptions used and assessing the internal controls over financial reporting related to the adoption of ASC 326. The Company adopted ASC 326 using the modified retrospective method for all financial assets measured at amortized cost and unfunded credit exposures. Results for reporting periods beginning after January 1, 2020 are presented under ASC 326, while prior period amounts continue to be reported in accordance with previously applicable GAAP. As a result of adopting ASC 326, the Company recorded a net decrease to retained earnings of $39.1 million. ASC 326 also replaced the Company’s current accounting for PCI loans. With the adoption of ASC 326, previously classified PCI loans are now classified as PCD loans. In accordance with ASC 326, the Company did not re-assess whether individual modifications were needed to individual acquired financial assets accounted for in the pools with troubled debt restructurings as of the date of adoption. The Company adopted ASC 326 using the prospective transition approach for financial assets with PCD that were previously identified as PCI and accounted for under ASC 310-30. On January 1, 2020, the amortized cost basis of the PCD assets were adjusted to reflect the addition of $2.4 million to the ACL. The remaining noncredit discount (based on the adjusted amortized cost basis) will be accreted into interest income at the effective interest rate as of January 1, The Company adopted ASC 326 using the prospective transition approach for debt securities. The effective interest rate on these debt securities was not changed. Upon adoption of ASC 326, the Company did not have any securities included in its portfolio where OTTI had previously been The following table illustrates the impact of ASC ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ January 1, ​ January 1, ​ ​ 2019 ​ 2020 ​ 2020 ​ ​ As Previously Reported (Incurred Loss) ​ Impact of CECL Adoption ​ As Reported Under CECL Assets: ​ ​ ​ ​ ​ ​ Loans ​ ​ ​ ​ ​ ​ Commercial $ 30,941 $ 6,184 $ 37,125 Consumer ​ 11,353 ​ 41,300 ​ 52,653 Allowance for loan and lease losses ​ 42,294 ​ 47,484 ​ 89,778 Liabilities: ​ ​ ​ ​ ​ ​ Allowance for credit losses on unfunded credit exposure ​ 900 ​ 4,160 ​ 5,060 Total Allowance for credit losses $ 43,194 $ 51,644 $ 94,838 ​ Allowance for Loan and Lease Losses The provision for loan losses charged to operations is an amount sufficient to bring the allowance to an estimated balance that management considers adequate to absorb expected losses in the Company’s loan portfolio. The ALLL is a valuation account that is deducted from the loans' amortized cost basis to present the net amount expected to be collected on the loans. Amortized cost is the principal balance outstanding, net of any purchase premiums and discounts and net of any deferred loan fees and costs. The ALLL represents management’s estimate of credit losses over the remaining life of the loan portfolio. Loans are charged off against the ALLL when management believes the loan balance is no longer collectible. Subsequent recoveries of previously charged off amounts are recorded as increases to the Management’s determination of the adequacy of the ALLL is based on an evaluation of the composition of the loan portfolio, the value and adequacy of collateral, current economic conditions, historical loan loss experience, reasonable and supportable forecasts, and other risk factors. The ALLL is estimated by pooling loans by call code and credit risk indicator and applying a loan-level PD/LGD method for all loans with the exception of its auto and third party consumer lending portfolios. For auto and third party consumer portfolios, the Company has elected to pool those loans based on similar risk characteristics to determine the ALLL using vintage and loss rate methods. The Company utilizes a forecast period of two years and then reverts to the mean of historical loss factors on a straight-line basis over the following two-year period. The Company considers economic forecasts and recession probabilities from highly recognized third-parties to inform the model for loss estimation. The Company’s ALLL estimate is particularly impacted by the unemployment rate forecast in its geographic footprint. In the current quarter forecast, the unemployment rate in the Company’s geographic footprint is projected to remain significantly elevated through the forecast period. Management also considers qualitative factors when estimating loan losses to take into account model limitations. For the current quarter, the largest qualitative additions were related to industries that are particularly impacted by the COVID pandemic, and were partially offset by qualitative reductions meant to account for enhanced unemployment benefits, bank deferrals, the PPP loan program and other factors. The Company’s Allowance Committee approves the key methodologies and assumptions, as well as the final ALLL on a quarterly basis. While management uses available information to estimate expected losses on loans, future changes in the ALLL may be necessary based on changes in portfolio composition, portfolio credit quality, and/or economic conditions. Loans that do not share risk characteristics are evaluated on an individual basis. The individual reserve component relates to loans that have shown substantial credit deterioration as measured by risk rating and/or delinquency status. In addition, the Company has elected the practical expedient that would include loans for individual assessment consideration if the repayment of the loan is expected substantially through the operation or sale of collateral because the borrower is experiencing financial difficulty. Where the source of repayment is the sale of collateral, the ALLL is based on the fair value of the underlying collateral, less selling costs, compared to the amortized cost basis of the loan. If the ALLL is based on the operation of the collateral, the reserve is calculated based on the fair value of the collateral calculated as the present value of expected cash flows from the operation of the collateral, compared to the amortized cost basis. If the Company determines that the value of a collateral dependent loan is less than the recorded investment in the loan, the Company charges off the deficiency if it is determined that such amount is deemed to be a confirmed loss. Typically, a loss is confirmed when the Company is moving towards foreclosure (or final disposition). In situations where, for economic or legal reasons related to a borrower’s financial condition, the Company grants a concession in the loan structure to the borrower that it would not otherwise consider, the related loan is classified as a TDR. With the exception of loans with interest rate concessions, the ALLL on a TDR is measured using the same method as all other loans held for investment. For loans with interest rate concessions, the Company uses a discounted cash flow approach using the original interest rate. Reserve for Unfunded Commitments The Company estimates expected credit losses over the contractual period in which the Company is exposed to credit risk via a contractual obligation to extend credit, unless that obligation is unconditionally cancellable by the Company. The reserve for unfunded commitments is adjusted as a provision for credit loss expense and is measured using the same measurement objectives as the ALLL. The estimate includes consideration of the likelihood that funding will occur and an estimate of expected credit losses on commitments expected to be funded and is included in “Other Liabilities” within the Company’s Consolidated Balance Sheets. Accrued Interest Receivable The Company has elected to exclude accrued interest from the amortized cost basis in its determination of the ACL reserve for both loans and HTM securities, as well as elected the policy to write-off accrued interest receivable directly through the reversal of interest income. Accrued interest receivable totaled $45.7 million on loans held for investment and, $6.8 million on HTM securities at June 30, 2020 and is included in “Other Assets” on the Company’s consolidated balance sheet. Acquired Loans The Company has purchased loans, some of which have experienced more than insignificant credit deterioration since origination. Acquired loans are recorded at their fair value at acquisition date without carryover of the acquiree’s previously established ALLL, as credit discounts are included in the determination of fair value. The fair value of the loans is determined using market participant assumptions in estimating the amount and timing of both principal and interest cash flows expected to be collected on the loans and then applying a market-based discount rate to those cash flows. During evaluation upon acquisition, acquired loans are also classified as either PCD or acquired performing. The purchase discount on acquired performing loans is accounted for under ASC 310-20, Receivables – Nonrefundable Fees and Other Costs PCD loans reflect loans that have experienced more-than-insignificant credit deterioration since origination. These PCD loans are accounted for under ASC 326 . PCD loans are recorded at the amount paid. An ALLL is determined using the same methodology as other loans held for investment. For PCD loans not individually assessed, the initial ALLL is determined on a collective basis and is allocated to individual loans. The sum of the loan's purchase price and ALLL becomes its initial amortized cost basis. The difference between the initial amortized cost basis and the par value of the loan is a noncredit discount or premium, which is amortized into interest income over the life of the loan. The Cash and Cash Equivalents For purposes of reporting cash flows, the Company defines cash and cash equivalents as cash, cash due from banks, interest-bearing deposits in other banks, money market investments, other interest-bearing deposits, and federal funds sold. ​ Restricted cash is disclosed in Note 8 “Commitments and Contingencies” and is comprised of cash maintained at various correspondent banks as collateral for the Company’s derivative portfolio and is included in interest-bearing deposits in other banks in the Company’s Consolidated Balance Sheets. In addition, the Company is required to maintain reserve balances with the Federal Reserve Bank based on the type and amount of deposits; however, on March 15, 2020 the Federal Reserve Board announced that reserve requirement ratios would be reduced to zero percent effective March 26, 2020 due to economic conditions, which eliminated the reserve requirement for all depository institutions. ​ Investment Securities Interest income includes amortization of purchase premium or discount. Premiums and discounts on securities are generally amortized on the level-yield method without anticipating prepayments, except for mortgage-backed securities The Company regularly evaluates all securities whose values have declined below amortized cost to assess whether the decline in fair value is the result of credit impairment. For AFS securities, the Company evaluates the fair value and credit quality of its AFS securities on at least a quarterly basis. In the event the fair value of a security falls below its amortized cost basis, the security will be evaluated to determine whether the decline in value was caused by changes in market interest rates or security credit quality. The primary indicators of credit quality for the Company’s AFS portfolio are security type and credit rating, which are influenced by a number of security-specific factors that may include obligor cash flow, geography, seniority, and others. There is currently no ACL held against the Company’s AFS securities portfolio at June 30, 2020. See Note 3 “Securities,” for additional information on the Company’s ACL analysis. If unrealized losses are related to credit quality, the Company estimates the credit related loss by evaluating the present value of cash flows expected to be collected from the security with the amortized cost basis of the security. If the present value of cash flows expected to be collected is less than the amortized cost basis of the security and a credit loss exists, an ACL shall be recorded for the credit loss, limited by the amount that the fair value is less than amortized cost basis. Non-credit related declines in fair value are recognized in other comprehensive income, net of applicable taxes. Changes in the ACL are recorded as provision for (or reversal of) credit loss expense. Charge-offs are recorded against the ACL when management believes the AFS security is no longer collectible. Currently, the Company does not have an ACL on its AFS debt securities portfolio. A debt security is placed on nonaccrual status at the time any principal or interest payments become 90 days delinquent. The Company evaluates the credit risk of its HTM securities on at least a quarterly basis. Management estimates expected credit losses on held-to-maturity debt securities based on an individual basis based on the PD/LGD methodology primarily using security-level credit ratings. Management recorded an immaterial ACL on HTM securities as a result of the adoption of ASC 326, and no additional changes were needed at June 30, 2020.

ACQUISITIONS

ACQUISITIONS	6 Months Ended
	Jun. 30, 2020
ACQUISITIONS [Abstract]
ACQUISITIONS	2. ACQUISITIONS Access Acquisition On February 1, 2019, the Company completed its acquisition of Access National Corporation (and its subsidiaries), a bank holding company based in Reston, Virginia. Holders of shares of Access’s common stock received 0.75 shares of the Company’s common stock in exchange for each share of Access’s common stock, resulting in the Company issuing 15,842,026 shares of the Company’s common stock at a fair value of approximately $500.0 million. In addition, the Company paid cash of approximately $12,000 in lieu of fractional shares. The transaction was accounted for using the acquisition method of accounting and, accordingly, assets acquired, liabilities assumed, and consideration exchanged were recorded at estimated fair values on the acquisition date. Fair values are preliminary and subject to refinement for up to one year after the closing date of the acquisition, in accordance with ASC 350, Intangibles-Goodwill and Other . The measurement period was formally closed as of February 1, 2020, and the Company did not make any measurement period adjustments in 2020. There were no merger-related costs associated with the acquisition of Access during the first six months of 2020. Merger- related costs associated with the acquisition of Access were $5.8 million and $23.6 million for the three and six months ended June 30, 2019, respectively. Such costs include legal and accounting fees, lease and contract termination expenses, system conversion, and employee severances, which have been expensed as incurred. ​

SECURITIES

SECURITIES	6 Months Ended
	Jun. 30, 2020
Securities [Abstract]
SECURITIES	3. SECURITIES On January 1, 2020, the Company adopted ASC 326, which made changes to the accounting for AFS debt securities whereby credit losses should be presented as an allowance, rather than as a write-down when management does not intend to sell and does not believe that it is more likely than not they will be required to sell prior to maturity. In addition, ASC 326 requires financial assets measured at amortized cost, including held-to-maturity debt securities, to measure an expected credit loss under the CECL methodology that requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. For further discussion on the Company’s accounting policies and policy elections related to the accounting standard update refer to Note 1 “Accounting Policies”. ​ All securities information presented as of June 30, 2020 is in accordance with ASC 326. All securities information presented prior to March 31, 2020 is in accordance with previous applicable GAAP. See the Company’s prior accounting policies in Note 1 “Summary of Significant Accounting Policies” of the 2019 Form 10-K. Available for Sale ​ The Company’s AFS investment portfolio is generally highly-rated or agency backed. All AFS securities were current with no securities past due or on non-accrual as of June 30, 2020. ​ The amortized cost, gross unrealized gains and losses, and estimated fair values of AFS securities as of June 30, 2020 are summarized as follows (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Amortized ​ Gross Unrealized ​ Estimated ​ Cost Gains (Losses) Fair Value June 30, 2020 ​ ​ ​ ​ ​ U.S. government and agency securities ​ $ 14,198 ​ $ 505 ​ $ (57) ​ $ 14,646 Obligations of states and political subdivisions ​ 504,866 ​ 34,968 ​ (307) ​ 539,527 Corporate and other bonds (1) ​ 132,489 ​ 1,122 ​ (2,261) ​ 131,350 Commercial mortgage-backed securities ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Agency ​ ​ 337,721 ​ 18,600 ​ (88) ​ ​ 356,233 Non-agency ​ ​ 20,253 ​ 62 ​ — ​ ​ 20,315 Total commercial mortgage-backed securities ​ ​ 357,974 ​ 18,662 ​ (88) ​ ​ 376,548 Residential mortgage-backed securities ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Agency ​ ​ 841,571 ​ 37,643 ​ (415) ​ ​ 878,799 Non-agency ​ ​ 75,790 ​ 494 ​ (1,089) ​ ​ 75,195 Total residential mortgage-backed securities ​ ​ 917,361 ​ 38,137 ​ (1,504) ​ ​ 953,994 Other securities ​ 3,099 ​ — ​ — ​ 3,099 Total AFS securities ​ $ 1,929,987 ​ $ 93,394 ​ $ (4,217) ​ $ 2,019,164 (1) Other bonds include asset-backed securities. The amortized cost, gross unrealized gains and losses, and estimated fair values of AFS securities as of December 31, 2019 are summarized as follows (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Amortized ​ Gross Unrealized ​ Estimated December 31, 2019 Cost Gains (Losses) Fair Value U.S. government and agency securities ​ $ 21,149 ​ $ 209 ​ $ (38) ​ $ 21,320 Obligations of states and political subdivisions ​ ​ 421,344 ​ ​ 25,776 ​ ​ (29) ​ ​ 447,091 Corporate and other bonds (1) ​ 134,342 ​ 1,991 ​ (374) ​ 135,959 Commercial mortgage-backed securities ​ ​ ​ ​ ​ ​ ​ ​ Agency ​ ​ 405,731 ​ ​ 8,786 ​ ​ (619) ​ ​ 413,898 Non-agency ​ ​ 11,173 ​ ​ — ​ ​ (24) ​ ​ 11,149 Total commercial mortgage-backed securities ​ ​ 416,904 ​ ​ 8,786 ​ ​ (643) ​ ​ 425,047 Residential mortgage-backed securities ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Agency ​ ​ 852,300 ​ ​ 16,680 ​ ​ (816) ​ ​ 868,164 Non-agency ​ ​ 44,309 ​ ​ 476 ​ ​ — ​ ​ 44,785 Total residential mortgage-backed securities ​ ​ 896,609 ​ ​ 17,156 ​ ​ (816) ​ ​ 912,949 Other securities ​ 3,079 ​ — ​ — ​ 3,079 Total AFS securities ​ $ 1,893,427 ​ $ 53,918 ​ $ (1,900) ​ $ 1,945,445 (1) Other bonds include asset-backed securities ​ ​ The following table shows the gross unrealized losses and fair value of the Company’s AFS securities with unrealized losses for which an allowance for credit losses has not been recorded at June 30, 2020 and that are not deemed to be other than temporarily impaired as of December 31, 2019. These are aggregated by investment category and length of time that the individual securities have been in a continuous unrealized loss position (dollars in thousands). ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Less than 12 months ​ More than 12 months ​ Total ​ Fair Unrealized Fair Unrealized Fair Unrealized ​ ​ Value ​ Losses ​ Value ​ Losses ​ Value ​ Losses June 30, 2020 ​ ​ ​ ​ ​ ​ U.S. government and agency securities ​ $ 3,771 ​ $ (28) ​ $ 2,444 ​ $ (29) ​ $ 6,215 ​ ​ (57) Obligations of states and political subdivisions ​ ​ 48,653 ​ ​ (307) ​ ​ — ​ ​ — ​ ​ 48,653 ​ $ (307) Corporate and other bonds (1) ​ 76,760 ​ (1,739) ​ 19,515 ​ (522) ​ 96,275 ​ (2,261) Commercial mortgage-backed securities ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Agency ​ ​ 11,086 ​ ​ (88) ​ ​ — ​ ​ — ​ ​ 11,086 ​ ​ (88) Non-agency ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total commercial mortgage-backed securities ​ ​ 11,086 ​ ​ (88) ​ ​ — ​ ​ — ​ ​ 11,086 ​ ​ (88) Residential mortgage-backed securities ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Agency ​ ​ 40,939 ​ ​ (390) ​ ​ 9,744 ​ ​ (25) ​ ​ 50,683 ​ ​ (415) Non-agency ​ ​ 45,642 ​ ​ (1,089) ​ ​ — ​ ​ — ​ ​ 45,642 ​ ​ (1,089) Total residential mortgage-backed securities ​ ​ 86,581 ​ ​ (1,479) ​ ​ 9,744 ​ ​ (25) ​ ​ 96,325 ​ ​ (1,504) Total AFS securities ​ $ 226,851 ​ $ (3,641) ​ $ 31,703 ​ $ (576) ​ $ 258,554 ​ $ (4,217) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019 ​ ​ ​ ​ ​ ​ U.S. government and agency securities ​ $ 7,638 ​ $ (38) ​ $ — ​ $ — ​ $ 7,638 ​ $ (38) Obligations of states and political subdivisions ​ ​ 4,526 ​ ​ (29) ​ ​ — ​ ​ — ​ ​ 4,526 ​ ​ (29) Corporate and other bonds (1) ​ 17,323 ​ (83) ​ 19,901 ​ (291) ​ 37,224 ​ (374) Commercial mortgage-backed securities ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Agency ​ ​ 43,552 ​ ​ (530) ​ ​ 14,966 ​ ​ (89) ​ ​ 58,518 ​ ​ (619) Non-agency ​ ​ 11,162 ​ ​ (24) ​ ​ — ​ ​ — ​ ​ 11,162 ​ ​ (24) Total commercial mortgage-backed securities ​ ​ 54,714 ​ ​ (554) ​ ​ 14,966 ​ ​ (89) ​ ​ 69,680 ​ ​ (643) Residential mortgage-backed securities ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Agency ​ ​ 114,147 ​ ​ (500) ​ ​ 40,168 ​ ​ (316) ​ ​ 154,315 ​ ​ (816) Non-agency ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total residential mortgage-backed securities ​ ​ 114,147 ​ ​ (500) ​ ​ 40,168 ​ ​ (316) ​ ​ 154,315 ​ ​ (816) Total AFS securities ​ $ 198,348 ​ $ (1,204) ​ $ 75,035 ​ $ (696) ​ $ 273,383 ​ $ (1,900) (1) Other bonds includes asset-backed securities. ​ As of June 30, 2020, there were $31.7 million, or 14 issues, of individual AFS securities that had been in a continuous loss position for more than 12 months and had an aggregate unrealized loss of $576,000 . As of December 31, 2019, there were $75.0 million, or 47 issues, of individual securities that had been in a continuous loss position for more than 12 months and had an aggregate unrealized loss of $696,000 . The Company has evaluated AFS securities in an unrealized loss position for credit related impairment at June 30, 2020 and December 31, 2019 and concluded no impairment existed based on several factors which included: (1) the majority of these securities are of high credit quality, (2) unrealized losses are primarily the result of market volatility, (3) the contractual terms of the investments do not permit the issuer(s) to settle the securities at a price less than the cost basis of each investment, (4) issuers continue to make timely principal and interest payments, and (5) the Company does not intend to sell any of the investments and the accounting standard of “more likely than not” has not been met for the Company to be required to sell any of the investments before recovery of its amortized cost basis. Additionally, the majority of the Company’s mortgage-backed securities are issued by FNMA, FHLMC, and GNMA and do not have credit risk given the implicit and explicit government guarantees associated with these agencies. In addition, the non-agency mortgage-backed securities generally received a 20% SSFA rating. ​ The following table presents the amortized cost and estimated fair value of AFS securities as of June 30, 2020 and December 31, 2019, by contractual maturity. 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 (dollars in thousands). ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 December 31, 2019 ​ Amortized Estimated Amortized Estimated ​ ​ Cost ​ Fair Value ​ Cost ​ Fair Value Due in one year or less ​ $ 27,404 ​ $ 27,621 ​ $ 35,177 ​ $ 35,329 Due after one year through five years ​ 148,289 ​ 155,504 ​ 164,605 ​ 166,873 Due after five years through ten years ​ 233,029 ​ 237,974 ​ 249,713 ​ 254,790 Due after ten years ​ 1,521,265 ​ 1,598,065 ​ 1,443,932 ​ 1,488,453 Total AFS securities ​ $ 1,929,987 ​ $ 2,019,164 ​ $ 1,893,427 ​ $ 1,945,445 ​ Refer to Note 8 "Commitments and Contingencies" for information regarding the estimated fair value of AFS securities that were pledged to secure public deposits, repurchase agreements, and for other purposes as permitted or required by law as of June 30, 2020 and December 31, 2019. Held to Maturity The Company’s HTM investment portfolio primarily consists of highly-rated municipal securities and the estimated credit loss inherent in the portfolio is currently immaterial. The Company’s HTM securities were all current, with no securities past due or on non-accrual at June 30, 2020. ​ The Company reports HTM securities on the Company’s Consolidated Balance Sheets at carrying value. Carrying value is amortized cost, which includes any unamortized unrealized gains and losses recognized in accumulated other comprehensive income prior to reclassifying the securities from AFS securities to HTM securities. Investment securities transferred into the HTM category from the AFS category are recorded at fair value at the date of transfer. The unrealized holding gain or loss at the date of transfer is retained in accumulated other comprehensive income and in the carrying value of the HTM securities. Such unrealized gains or losses are accreted over the remaining life of the security with no impact on future net income. ​ The carrying value, gross unrealized gains and losses, and estimated fair values of HTM securities as of June 30, 2020 are summarized as follows (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Carrying ​ Gross Unrealized ​ Estimated ​ Value Gains (Losses) ​ Fair Value June 30, 2020 ​ ​ ​ ​ ​ U.S. government and agency securities ​ $ 2,781 ​ $ — ​ $ (27) ​ $ 2,754 Obligations of states and political subdivisions ​ ​ 539,187 ​ ​ 65,944 ​ ​ — ​ ​ 605,131 Commercial mortgage-backed securities ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Agency ​ ​ 5,593 ​ ​ 1 ​ ​ (50) ​ ​ 5,544 Non-agency ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total commercial mortgage-backed securities ​ ​ 5,593 ​ ​ 1 ​ ​ (50) ​ ​ 5,544 Total held-to-maturity securities ​ $ 547,561 ​ $ 65,945 ​ $ (77) ​ $ 613,429 ​ The carrying value, gross unrealized gains and losses, and estimated fair values of HTM securities as of December 31, 2019 are summarized as follows (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Carrying ​ Gross Unrealized ​ Estimated ​ Value Gains (Losses) Fair Value December 31, 2019 ​ ​ ​ ​ U.S. government and agency securities ​ $ 2,813 ​ $ 26 ​ $ — ​ $ 2,839 Obligations of states and political subdivisions ​ ​ 545,148 ​ ​ 48,274 ​ ​ — ​ ​ 593,422 Commercial mortgage-backed securities ​ ​ ​ ​ ​ ​ ​ ​ ​ Agency ​ ​ 7,183 ​ ​ 59 ​ ​ — ​ ​ 7,242 Non-agency ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total commercial mortgage-backed securities ​ ​ 7,183 ​ ​ 59 ​ ​ — ​ ​ 7,242 Total held-to-maturity securities ​ $ 555,144 ​ $ 48,359 ​ $ — ​ $ 603,503 ​ ​ ​ Credit Quality Indicators & Allowance for Credit Losses - HTM ​ For HTM securities, the Company evaluates the credit risk of its securities on at least a quarterly basis. The Company estimates expected credit losses on HTM debt securities on an individual basis based on the PD/LGD methodology primarily using security-level credit ratings. The Company’s HTM securities ACL was immaterial at the adoption of ASC 326. The Company re-evaluated the HTM securities ACL and concluded no additional reserve was needed at June 30, 2020. The primary indicators of credit quality for the Company’s HTM portfolio are security type and credit rating, which is influenced by a number of factors including obligor cash flow, geography, seniority, and others. The Company’s only HTM securities with credit risk are obligations of states and political subdivisions. ​ The following table presents the amortized cost of HTM securities as of June 30, 2020 by security type and credit rating (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended June 30, 2020 ​ U.S. Government and Agency Obligations of states and political Mortgage-backed ​ Total HTM ​ ​ securities ​ subdivisions ​ securities ​ securities Credit Rating: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ AAA/AA/A ​ $ — ​ $ 534,577 ​ $ — ​ $ 534,577 Not Rated - Agency (1) ​ ​ 2,781 ​ ​ — ​ ​ 5,593 ​ ​ 8,374 Not Rated - Non-Agency ​ ​ — ​ 4,610 ​ ​ — ​ ​ 4,610 Total ​ $ 2,781 ​ $ 539,187 ​ $ 5,593 ​ $ 547,561 (1) Generally considered not to have credit risk given the government guarantees associated with these agencies ​ The following table presents the amortized cost and estimated fair value of HTM securities as of June 30, 2020 and December 31, 2019, by contractual maturity. 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 (dollars in thousands). ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 ​ December 31, 2019 ​ Carrying Estimated Carrying Estimated ​ ​ Value ​ Fair Value ​ Value ​ Fair Value Due in one year or less ​ $ 1,007 ​ $ 1,028 ​ $ 502 ​ $ 504 Due after one year through five years ​ 9,133 ​ 9,490 ​ 10,258 ​ 10,539 Due after five years through ten years ​ 1,754 ​ 1,777 ​ 1,768 ​ 1,800 Due after ten years ​ 535,667 ​ 601,134 ​ 542,616 ​ 590,660 Total HTM securities ​ $ 547,561 ​ $ 613,429 ​ $ 555,144 ​ $ 603,503 ​ Refer to Note 8 "Commitments and Contingencies" for information regarding the estimated fair value of HTM securities that were pledged to secure public deposits as permitted or required by law as of June 30, 2020 and December 31, 2019. Restricted Stock, at cost Due to restrictions placed upon the Bank’s common stock investment in the Federal Reserve Bank and 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 June 30, 2020 and December 31, 2019, 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 the Bank’s outstanding capital at both June 30, 2020 and December 31, 2019. Restricted equity securities consist of Federal Reserve Bank stock in the amount of $67.0 million for June 30, 2020 and December 31, 2019 and FHLB stock in the amount of $38.8 million and $63.9 million as of June 30, 2020 and December 31, 2019, respectively. Realized Gains and Losses The following table presents the gross realized gains and losses on and the proceeds from the sale of securities during the three and six months ended June 30, 2020 and 2019 (dollars in thousands). ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended Six Months Ended ​ ​ June 30, 2020 ​ June 30, 2020 Realized gains (losses): ​ ​ Gross realized gains ​ $ 10,339 ​ $ 12,503 Gross realized losses ​ — ​ (228) Net realized gains ​ $ 10,339 ​ $ 12,275 ​ ​ ​ ​ ​ ​ ​ Proceeds from sales of securities ​ $ 107,570 ​ $ 228,271 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended Six Months Ended ​ ​ June 30, 2019 ​ June 30, 2019 Realized gains (losses): ​ ​ Gross realized gains ​ $ 844 ​ $ 2,057 Gross realized losses ​ (793) ​ (1,855) Net realized gains ​ $ 51 ​ $ 202 ​ ​ ​ ​ ​ ​ ​ Proceeds from sales of securities ​ $ 179,701 ​ $ 387,950 ​ ​

LOANS AND ALLOWANCE FOR LOAN LO

LOANS AND ALLOWANCE FOR LOAN LOSSES	6 Months Ended
	Jun. 30, 2020
Loans and Allowance for Loan Losses [Abstract]
LOANS AND ALLOWANCE FOR LOAN LOSSES	4. LOANS AND ALLOWANCE FOR LOAN AND LEASE LOSSES On January 1, 2020, the Company adopted ASC 326. The measurement of expected credit losses under the CECL methodology is applicable to financial assets measured at amortized cost, including loan receivables. For further discussion on the Company’s accounting policies and policy elections related to the accounting standard update refer to Note 1 “Accounting Policies” in this Quarterly Report. All loan information presented as of June 30, 2020 is in accordance with ASC 326. All loan information presented prior to January 1, 2020 is in accordance with previous applicable GAAP. During March 2020, in response to the economic fallout from the COVID-19 pandemic, the CARES Act was passed by Congress and signed into law by the President along with joint guidance issued by the five federal bank regulatory agencies that provided enhanced guidelines and accounting for COVID-19 related modifications. For further discussion on the CARES Act and the March 22 Joint Guidance and related loan impact refer to Note 1 “Accounting Polices” in this quarterly report. The information included below reflects the impact of the CARES Act and the March 22 Joint Guidance. ​ ​ The Company’s loans are stated at their face amount, net of deferred fees and costs, and consist of the following at June 30, 2020 and December 31, 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 December 31, 2019 Construction and Land Development ​ $ 1,247,939 ​ $ 1,250,924 Commercial Real Estate - Owner Occupied ​ 2,067,087 ​ 2,041,243 Commercial Real Estate - Non-Owner Occupied ​ 3,455,125 ​ 3,286,098 Multifamily Real Estate ​ 717,719 ​ 633,743 Commercial & Industrial (1) ​ 3,555,971 ​ 2,114,033 Residential 1-4 Family - Commercial ​ 715,384 ​ 724,337 Residential 1-4 Family - Consumer ​ 841,051 ​ 890,503 Residential 1-4 Family - Revolving ​ 627,765 ​ 659,504 Auto ​ 380,053 ​ 350,419 Consumer ​ 311,362 ​ 372,853 Other Commercial (1) ​ 389,190 ​ 287,279 Total loans held for investment, net of deferred fees and costs ​ ​ 14,308,646 ​ ​ 12,610,936 Allowance for loan and lease losses ​ ​ (169,977) ​ ​ (42,294) Total loans held for investment, net ​ $ 14,138,669 ​ $ 12,568,642 (1) Commercial & industrial and other commercial loans include approximately $1.6 billion and $20.3 million, respectively, in new loans from the PPP loan program at June 30, 2020. ​ The following table shows the aging of the Company’s loan portfolio, by class, at June 30, 2020 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Greater than ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 30-59 Days ​ 60-89 Days ​ 90 Days and ​ ​ ​ ​ ​ ​ ​ ​ Current ​ Past Due ​ Past Due ​ still Accruing ​ Nonaccrual ​ Total Loans Construction and Land Development ​ $ 1,241,512 ​ $ 1,683 ​ $ 294 ​ $ 473 ​ $ 3,977 ​ $ 1,247,939 Commercial Real Estate - Owner Occupied ​ 2,048,203 ​ 1,679 ​ 430 ​ 7,851 ​ 8,924 ​ 2,067,087 Commercial Real Estate - Non-Owner Occupied ​ 3,451,071 ​ 930 ​ 369 ​ 878 ​ 1,877 ​ 3,455,125 Multifamily Real Estate ​ 717,320 ​ — ​ — ​ 366 ​ 33 ​ 717,719 Commercial & Industrial ​ 3,551,187 ​ 1,602 ​ 296 ​ 178 ​ 2,708 ​ 3,555,971 Residential 1-4 Family - Commercial ​ 706,437 ​ 480 ​ 2,105 ​ 578 ​ 5,784 ​ 715,384 Residential 1-4 Family - Consumer ​ 818,877 ​ 1,229 ​ 3,817 ​ 5,099 ​ 12,029 ​ 841,051 Residential 1-4 Family - Revolving ​ 619,172 ​ 1,924 ​ 1,048 ​ 1,995 ​ 3,626 ​ 627,765 Auto ​ 377,822 ​ 1,176 ​ 290 ​ 181 ​ 584 ​ 380,053 Consumer ​ 308,719 ​ 844 ​ 561 ​ 1,157 ​ 81 ​ 311,362 Other Commercial ​ ​ 388,234 ​ ​ 456 ​ ​ — ​ ​ 499 ​ ​ 1 ​ ​ 389,190 Total loans held for investment ​ $ 14,228,554 ​ $ 12,003 ​ $ 9,210 ​ $ 19,255 ​ $ 39,624 ​ $ 14,308,646 ​ These balances reflect the impact of the CARES Act and the March 22 Joint Guidance which provides relief for TDR designations and also provides guidance on past due reporting for modified loans. ​ The following table shows the Company’s amortized cost basis of loans on nonaccrual status as of January 1, 2020 as well as amortized cost basis of loans on nonaccrual status and loans past due 90 days and still accruing as of June 30, 2020 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Nonaccrual ​ ​ ​ ​ ​ ​ ​ ​ January 1, 2020 ​ June 30, 2020 ​ Nonaccrual With No ALLL ​ 90 Days and still Accruing Construction and Land Development ​ $ 4,060 ​ $ 3,977 ​ $ 1,987 ​ $ 473 Commercial Real Estate - Owner Occupied ​ ​ 13,889 ​ ​ 8,924 ​ ​ 1,990 ​ ​ 7,851 Commercial Real Estate - Non-Owner Occupied ​ ​ 1,368 ​ ​ 1,877 ​ ​ — ​ ​ 878 Multifamily Real Estate ​ ​ — ​ ​ 33 ​ ​ — ​ ​ 366 Commercial & Industrial ​ ​ 3,037 ​ ​ 2,708 ​ ​ — ​ ​ 178 Residential 1-4 Family - Commercial ​ ​ 6,492 ​ ​ 5,784 ​ ​ 1,738 ​ ​ 578 Residential 1-4 Family - Consumer ​ ​ 13,117 ​ ​ 12,029 ​ ​ 1,069 ​ ​ 5,099 Residential 1-4 Family - Revolving ​ ​ 2,490 ​ ​ 3,626 ​ ​ 60 ​ ​ 1,995 Auto ​ ​ 565 ​ ​ 584 ​ ​ — ​ ​ 181 Consumer ​ ​ 88 ​ ​ 81 ​ ​ — ​ ​ 1,157 Other Commercial ​ ​ 98 ​ ​ 1 ​ ​ — ​ ​ 499 Total loans held for investment ​ $ 45,204 ​ $ 39,624 ​ $ 6,844 ​ $ 19,255 ​ ​ There was no interest income recognized on nonaccrual loans during the three or six months ended June 30, 2020. See Note 1 “Summary of Significant Accounting Policies” in the Company’s 2019 Form 10-K for additional information on the Company’s policies for nonaccrual loans. ​ ​ Troubled Debt Restructurings ​ The CARES Act permits financial institutions to suspend requirements under GAAP for loan modifications to borrowers affected by COVID-19 that would otherwise be characterized as TDRs. In addition, federal bank regulatory authorities have issued guidance to encourage financial institutions to make loan modifications for borrowers affected by COVID-19 and have assured financial institutions that they will neither receive supervisory criticism for such prudent loan modifications, nor be required by examiners to automatically categorize COVID-19-related loan modifications as TDRs. As of June 30, 2020, the Company had approximately $1.6 billion in loans still under their modified terms. The Company’s modification program included payment deferrals, interest only, and other forms of modifications. A majority of the modifications were 3-month deferrals. In addition to the above mentioned modifications, as of June 30, 2020, the Company has TDRs totaling $20.3 million with an estimated $1.9 million of allowance for those loans for the current period. ​ A modification of a loan’s terms constitutes a TDR if the creditor grants a concession that it would not otherwise consider to the borrower for economic or legal reasons related to the borrower’s financial difficulties. All loans that are considered to be TDRs are evaluated for credit losses in accordance with the Company’s ALLL methodology. For the three months and six ended June 30, 2020, the recorded investment in TDRs prior to modifications was not materially impacted by the modifications. ​ The following table provides a summary, by class, of TDRs that continue to accrue interest under the terms of the applicable restructuring agreement, which are considered to be performing, and TDRs that have been placed on nonaccrual status, which are considered to be nonperforming, as of June 30, 2020 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 ​ No. of Recorded Outstanding ​ ​ Loans ​ Investment ​ Commitment Performing ​ ​ Construction and Land Development 4 ​ $ 222 ​ $ — Commercial Real Estate - Owner Occupied 6 ​ 2,218 ​ 26 Commercial Real Estate - Non-Owner Occupied 1 ​ 1,089 ​ — Commercial & Industrial 5 ​ 1,129 ​ — Residential 1-4 Family - Commercial 4 ​ 214 ​ — Residential 1-4 Family - Consumer 79 ​ 9,886 ​ — Residential 1-4 Family - Revolving 2 ​ 55 ​ — Consumer 5 ​ 34 ​ — Other Commercial ​ 1 ​ ​ 456 ​ ​ — Total performing 107 ​ $ 15,303 ​ $ 26 Nonperforming ​ ​ Commercial Real Estate - Owner Occupied 2 ​ $ 165 ​ $ — Commercial & Industrial 2 ​ 128 ​ — Residential 1-4 Family - Commercial 1 ​ 71 ​ — Residential 1-4 Family - Consumer 21 ​ 4,572 ​ — Residential 1-4 Family - Revolving 3 ​ 106 ​ — Total nonperforming 29 ​ $ 5,042 ​ $ — Total performing and nonperforming 136 ​ $ 20,345 ​ $ 26 ​ ​ 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 three and six months ended June 30, 2020, the Company did not have any material loans that went into default that had been restructured in the twelve-month period prior to the time of default. ​ The following table shows, by class and modification type, TDRs that occurred during the three and six months ended June 30, 2020 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ All Restructurings ​ ​ Three Months Ended June 30, 2020 ​ Six Months Ended June 30, 2020 ​ ​ 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 ​ ​ Commercial & Industrial 4 ​ $ 353 4 ​ $ 353 Residential 1-4 Family - Consumer 3 ​ 326 3 ​ 326 Consumer ​ 1 ​ ​ 10 ​ 1 ​ ​ 10 Total loan term extended at a market rate 8 ​ $ 689 8 ​ $ 689 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Term modification, below market rate ​ ​ Construction and Land Development ​ — ​ $ — ​ 1 ​ $ 35 Residential 1-4 Family - Consumer 3 ​ ​ 172 13 ​ ​ 1,937 Residential 1-4 Family - Revolving 1 ​ 52 1 ​ 52 Total loan term extended at a below market rate 4 ​ $ 224 15 ​ $ 2,024 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest rate modification, below market rate ​ ​ Total interest only at below market rate of interest — ​ $ — — ​ $ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total 12 ​ $ 913 23 ​ $ 2,713 ​ Allowance for Loan and Lease Losses ​ ALLL on the loan portfolio is a material estimate for the Company. The Company estimates its ALLL on its loan portfolio on a quarterly basis. The Company models the ALLL using two primary segments, Commercial and Consumer. Within each segment, loan classes are further identified based on similar risk characteristics. The Company has identified the following classes within each segment: ● Commercial : Construction and Land Development, Commercial Real Estate – Owner Occupied, Commercial Real Estate – Non-Owner Occupied, Multifamily Real Estate, Commercial & Industrial, Residential 1-4 Family – Commercial, and Other Commercial ● Consumer : Residential 1-4 Family – Consumer, Residential 1-4 Family – Revolving, Auto, and Consumer ​ The following tables show the ALLL activity by segment for the three and six months ended June 30, 2020 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended June 30, 2020 ​ Six Months Ended June 30, 2020 ​ ​ Commercial ​ Consumer ​ Total ​ Commercial ​ Consumer ​ Total Balance at beginning of period ​ $ 77,843 ​ $ 63,200 ​ $ 141,043 ​ $ 30,941 ​ $ 11,353 ​ $ 42,294 Impact of ASC 326 adoption on non-PCD loans ​ — ​ — ​ — ​ 4,432 ​ 40,666 ​ 45,098 Impact of ASC 326 adoption on PCD loans ​ — ​ — ​ — ​ 1,752 ​ 634 ​ 2,386 Impact of adopting ASC 326 ​ — ​ — ​ — ​ 6,184 ​ 41,300 ​ 47,484 Loans charged-off ​ (1,590) ​ (3,087) ​ (4,677) ​ (4,558) ​ (7,270) ​ (11,828) Recoveries credited to allowance ​ 708 ​ 703 ​ 1,411 ​ 1,862 ​ 1,709 ​ 3,571 Provision charged to operations ​ 34,993 ​ (2,793) ​ 32,200 ​ 77,525 ​ 10,931 ​ 88,456 Balance at end of period ​ $ 111,954 ​ $ 58,023 ​ $ 169,977 ​ $ 111,954 ​ $ 58,023 ​ $ 169,977 Credit Quality Indicators ​ Credit quality indicators are utilized to help estimate the collectability of each loan class within the Commercial and Consumer segments. For classes of loans within the Commercial segment, the primary credit quality indicator used for evaluating credit quality and estimating the ALLL is risk rating categories of Pass, Watch & Special Mention, Substandard, and Doubtful. For classes of loans within the Consumer segment, the primary credit quality indicator used for evaluating credit quality and estimating the ALLL is delinquency bands of Current, 30-59, 60-89, 90+, and Nonaccrual. While other credit quality indicators are evaluated and analyzed as part of the Company’s credit risk management activities, these indicators are primarily used in estimating the ALLL. The Company evaluates the credit risk of its loan portfolio on at least a quarterly basis. ​ Commercial Loans ​ The Company uses a risk rating system as the primary credit quality indicator for classes of loans within the Commercial segment. The risk rating system on a scale of 0 through 9 is used to determine risk level as used in the calculation of the allowance for credit loss; The risk levels, as described below, do not necessarily follow the regulatory definitions of risk levels with the same name. A general description of the characteristics of the risk levels follows: ​ Pass is determined by the following criteria: ● Risk rated 0 loans have little or no risk and are with General Obligation Municipal Borrowers; ● Risk rated 1 loans have little or no risk and are generally secured by cash or cash equivalents; ● Risk rated 2 loans have minimal risk to well qualified borrowers and no significant questions as to safety; ● Risk rated 3 loans are satisfactory loans with strong borrowers and secondary sources of repayment; ● Risk rated 4 loans are satisfactory loans with borrowers not as strong as risk rated 3 loans and may exhibit a greater degree of financial risk based on the type of business supporting the loan; ​ Watch & 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; ​ Substandard is determined by the following criteria: ● Risk rated 7 loans are substandard loans and are inadequately protected by the current sound worth or paying capacity of the obligor or the collateral pledged; these have well defined weaknesses that jeopardize the liquidation of the debt with the distinct possibility the Company will sustain some loss if the deficiencies are not corrected; ​ Doubtful is determined by the following criteria: ● Risk rated 8 loans are doubtful of collection and the possibility of loss is high but pending specific borrower plans for recovery, its classification as a loss is deferred until its more exact status is determined; ● Risk rated 9 loans are loss loans which are considered uncollectable and of such little value that their continuance as bankable assets is not warranted ​ The table below details the amortized cost of the classes of loans within the Commercial segment by risk level and year of origination as of June 30, 2020 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 ​ ​ ​ Term Loans Amortized Cost Basis by Origination Year ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020 ​ 2019 ​ 2018 ​ 2017 ​ 2016 ​ Prior ​ Revolving Loans ​ Total Construction and Land Development ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 137,981 ​ $ 453,779 ​ $ 395,935 ​ $ 64,529 ​ $ 47,982 ​ $ 70,524 ​ $ 29,060 ​ $ 1,199,790 Watch & Special Mention ​ ​ 4,492 ​ ​ 6,859 ​ ​ 1,061 ​ ​ 350 ​ ​ 5,759 ​ ​ 16,202 ​ ​ 2,509 ​ ​ 37,232 Substandard ​ ​ — ​ ​ 1 ​ ​ 59 ​ ​ 962 ​ ​ 2,468 ​ ​ 7,427 ​ ​ — ​ ​ 10,917 Total Construction and Land Development ​ $ 142,473 ​ $ 460,639 ​ $ 397,055 ​ $ 65,841 ​ $ 56,209 ​ $ 94,153 ​ $ 31,569 ​ $ 1,247,939 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial Real Estate - Owner Occupied ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 144,263 ​ $ 384,862 ​ $ 290,813 ​ $ 258,877 ​ $ 147,657 ​ $ 658,853 ​ $ 23,773 ​ $ 1,909,098 Watch & Special Mention ​ ​ — ​ ​ 10,694 ​ ​ 24,683 ​ ​ 15,082 ​ ​ 28,604 ​ ​ 57,783 ​ ​ 2,475 ​ ​ 139,321 Substandard ​ ​ — ​ ​ — ​ ​ 1,106 ​ ​ 400 ​ ​ 1,123 ​ ​ 15,664 ​ ​ 375 ​ ​ 18,668 Total Commercial Real Estate - Owner Occupied ​ $ 144,263 ​ $ 395,556 ​ $ 316,602 ​ $ 274,359 ​ $ 177,384 ​ $ 732,300 ​ $ 26,623 ​ $ 2,067,087 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial Real Estate - Non-Owner Occupied ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 214,340 ​ $ 515,046 ​ $ 488,913 ​ $ 498,462 ​ $ 455,214 ​ $ 1,121,284 ​ $ 50,855 ​ $ 3,344,114 Watch & Special Mention ​ ​ 1,265 ​ ​ 17,170 ​ ​ 14,631 ​ ​ 16,585 ​ ​ 20,830 ​ ​ 33,911 ​ ​ 249 ​ ​ 104,641 Substandard ​ ​ — ​ ​ — ​ ​ 164 ​ ​ — ​ ​ 25 ​ ​ 5,981 ​ ​ 200 ​ ​ 6,370 Total Commercial Real Estate - Non-Owner Occupied ​ $ 215,605 ​ $ 532,216 ​ $ 503,708 ​ $ 515,047 ​ $ 476,069 ​ $ 1,161,176 ​ $ 51,304 ​ $ 3,455,125 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial & Industrial ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 1,868,291 ​ $ 439,598 ​ $ 241,038 ​ $ 85,126 ​ $ 82,301 ​ $ 169,136 ​ $ 601,547 ​ $ 3,487,037 Watch & Special Mention ​ ​ 1,630 ​ ​ 4,963 ​ ​ 11,326 ​ ​ 2,963 ​ ​ 5,536 ​ ​ 5,656 ​ ​ 27,680 ​ ​ 59,754 Substandard ​ ​ — ​ ​ 484 ​ ​ 828 ​ ​ 158 ​ ​ 826 ​ ​ 2,806 ​ ​ 4,078 ​ ​ 9,180 Total Commercial & Industrial ​ $ 1,869,921 ​ $ 445,045 ​ $ 253,192 ​ $ 88,247 ​ $ 88,663 ​ $ 177,598 ​ $ 633,305 ​ $ 3,555,971 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Multifamily Real Estate ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 79,312 ​ $ 80,058 ​ $ 70,145 ​ $ 144,193 ​ $ 70,943 ​ $ 245,687 ​ $ 6,904 ​ $ 697,242 Watch & Special Mention ​ ​ — ​ ​ 653 ​ ​ 4,415 ​ ​ 8,254 ​ ​ 1,137 ​ ​ 5,619 ​ ​ — ​ ​ 20,078 Substandard ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 399 ​ ​ — ​ ​ 399 Total Multifamily Real Estate ​ $ 79,312 ​ $ 80,711 ​ $ 74,560 ​ $ 152,447 ​ $ 72,080 ​ $ 251,705 ​ $ 6,904 ​ $ 717,719 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Residential 1-4 Family - Commercial ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 58,222 ​ $ 105,249 ​ $ 78,610 ​ $ 97,653 ​ $ 82,407 ​ $ 244,579 ​ $ 1,721 ​ $ 668,441 Watch & Special Mention ​ ​ 1,214 ​ ​ 5,356 ​ ​ 8,535 ​ ​ 5,022 ​ ​ 2,053 ​ ​ 14,874 ​ ​ — ​ ​ 37,054 Substandard ​ ​ — ​ ​ 485 ​ ​ 324 ​ ​ 630 ​ ​ 1,180 ​ ​ 6,782 ​ ​ 488 ​ ​ 9,889 Total Residential 1-4 Family - Commercial ​ $ 59,436 ​ $ 111,090 ​ $ 87,469 ​ $ 103,305 ​ $ 85,640 ​ $ 266,235 ​ $ 2,209 ​ $ 715,384 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other Commercial ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 121,097 ​ $ 114,883 ​ $ 10,376 ​ $ 40,118 ​ $ 16,919 ​ $ 60,477 ​ $ 18,630 ​ $ 382,500 Watch & Special Mention ​ ​ — ​ ​ — ​ ​ 629 ​ ​ 1,324 ​ ​ 927 ​ ​ 3,251 ​ ​ — ​ ​ 6,131 Substandard ​ ​ — ​ ​ — ​ ​ — ​ ​ 59 ​ ​ — ​ ​ 500 ​ ​ — ​ ​ 559 Total Other Commercial ​ $ 121,097 ​ $ 114,883 ​ $ 11,005 ​ $ 41,501 ​ $ 17,846 ​ $ 64,228 ​ $ 18,630 ​ $ 389,190 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total Commercial ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 2,623,506 ​ $ 2,093,475 ​ $ 1,575,830 ​ $ 1,188,958 ​ $ 903,423 ​ $ 2,570,540 ​ $ 732,490 ​ $ 11,688,222 Watch & Special Mention ​ ​ 8,601 ​ ​ 45,695 ​ ​ 65,280 ​ ​ 49,580 ​ ​ 64,846 ​ ​ 137,296 ​ ​ 32,913 ​ ​ 404,211 Substandard ​ ​ — ​ ​ 970 ​ ​ 2,481 ​ ​ 2,209 ​ ​ 5,622 ​ ​ 39,559 ​ ​ 5,141 ​ ​ 55,982 Total Commercial ​ $ 2,632,107 ​ $ 2,140,140 ​ $ 1,643,591 ​ $ 1,240,747 ​ $ 973,891 ​ $ 2,747,395 ​ $ 770,544 ​ $ 12,148,415 ​ Consumer Loans ​ For Consumer loans, the Company evaluates credit quality based on the delinquency status of the loan. The following table details the amortized cost of the classes of loans within the Consumer segment based on their delinquency status and year of origination as of June 30, 2020 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 ​ ​ ​ Term Loans Amortized Cost Basis by Origination Year ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020 ​ 2019 ​ 2018 ​ 2017 ​ 2016 ​ Prior ​ Revolving Loans ​ Total Residential 1-4 Family - Consumer ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Current ​ $ 91,069 ​ $ 86,537 ​ $ 90,968 ​ $ 87,658 ​ $ 120,412 ​ $ 342,221 ​ $ 12 ​ $ 818,877 30-59 Days Past Due ​ ​ 37 ​ ​ — ​ ​ 20 ​ ​ 90 ​ ​ 185 ​ ​ 897 ​ ​ — ​ ​ 1,229 60-89 Days Past Due ​ ​ — ​ ​ 636 ​ ​ 109 ​ ​ 1,986 ​ ​ 250 ​ ​ 836 ​ ​ — ​ ​ 3,817 90+ Days Past Due ​ ​ 162 ​ ​ 1,756 ​ ​ 151 ​ ​ 446 ​ ​ 223 ​ ​ 2,361 ​ ​ — ​ ​ 5,099 Nonaccrual ​ ​ — ​ ​ — ​ ​ 718 ​ ​ 879 ​ ​ 790 ​ ​ 9,642 ​ ​ — ​ ​ 12,029 Total Residential 1-4 Family - Consumer ​ $ 91,268 ​ $ 88,929 ​ $ 91,966 ​ $ 91,059 ​ $ 121,860 ​ $ 355,957 ​ $ 12 ​ $ 841,051 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Residential 1-4 Family - Revolving ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Current ​ $ 9,667 ​ $ 4,666 ​ $ 2,167 ​ $ 18 ​ $ — ​ $ 653 ​ $ 602,001 ​ $ 619,172 30-59 Days Past Due ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 1,924 ​ ​ 1,924 60-89 Days Past Due ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 1,048 ​ ​ 1,048 90+ Days Past Due ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 1,995 ​ ​ 1,995 Nonaccrual ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 314 ​ ​ 3,312 ​ ​ 3,626 Total Residential 1-4 Family - Revolving ​ $ 9,667 ​ $ 4,666 ​ $ 2,167 ​ $ 18 ​ $ — ​ $ 967 ​ $ 610,280 ​ $ 627,765 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Consumer ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Current ​ $ 24,807 ​ $ 91,712 ​ $ 94,273 ​ $ 30,170 ​ $ 13,211 ​ $ 18,930 ​ $ 35,616 ​ $ 308,719 30-59 Days Past Due ​ ​ 14 ​ ​ 261 ​ ​ 407 ​ ​ 74 ​ ​ 61 ​ ​ 2 ​ ​ 25 ​ ​ 844 60-89 Days Past Due ​ ​ 19 ​ ​ 198 ​ ​ 296 ​ ​ 30 ​ ​ 6 ​ ​ — ​ ​ 12 ​ ​ 561 90+ Days Past Due ​ ​ — ​ ​ 92 ​ ​ 382 ​ ​ 85 ​ ​ 19 ​ ​ 215 ​ ​ 364 ​ ​ 1,157 Nonaccrual ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 2 ​ ​ 79 ​ ​ — ​ ​ 81 Total Consumer ​ $ 24,840 ​ $ 92,263 ​ $ 95,358 ​ $ 30,359 ​ $ 13,299 ​ $ 19,226 ​ $ 36,017 ​ $ 311,362 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Auto ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Current ​ $ 89,044 ​ $ 138,532 ​ $ 70,484 ​ $ 43,386 ​ $ 24,536 ​ $ 11,840 ​ $ — ​ $ 377,822 30-59 Days Past Due ​ ​ 88 ​ ​ 291 ​ ​ 247 ​ ​ 254 ​ ​ 186 ​ ​ 110 ​ ​ — ​ ​ 1,176 60-89 Days Past Due ​ ​ — ​ ​ 90 ​ ​ 21 ​ ​ 41 ​ ​ 84 ​ ​ 54 ​ ​ — ​ ​ 290 90+ Days Past Due ​ ​ — ​ ​ 11 ​ ​ 62 ​ ​ 58 ​ ​ 9 ​ ​ 41 ​ ​ — ​ ​ 181 Nonaccrual ​ ​ — ​ ​ 142 ​ ​ 84 ​ ​ 112 ​ ​ 161 ​ ​ 85 ​ ​ — ​ ​ 584 Total Auto ​ $ 89,132 ​ $ 139,066 ​ $ 70,898 ​ $ 43,851 ​ $ 24,976 ​ $ 12,130 ​ $ — ​ $ 380,053 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total Consumer ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Current ​ $ 214,587 ​ $ 321,447 ​ $ 257,892 ​ $ 161,232 ​ $ 158,159 ​ $ 373,644 ​ $ 637,629 ​ $ 2,124,590 30-59 Days Past Due ​ ​ 139 ​ ​ 552 ​ ​ 674 ​ ​ 418 ​ ​ 432 ​ ​ 1,009 ​ ​ 1,949 ​ ​ 5,173 60-89 Days Past Due ​ ​ 19 ​ ​ 924 ​ ​ 426 ​ ​ 2,057 ​ ​ 340 ​ ​ 890 ​ ​ 1,060 ​ ​ 5,716 90+ Days Past Due ​ ​ 162 ​ ​ 1,859 ​ ​ 595 ​ ​ 589 ​ ​ 251 ​ ​ 2,617 ​ ​ 2,359 ​ ​ 8,432 Nonaccrual ​ ​ — ​ ​ 142 ​ ​ 802 ​ ​ 991 ​ ​ 953 ​ ​ 10,120 ​ ​ 3,312 ​ ​ 16,320 Total Consumer ​ $ 214,907 ​ $ 324,924 ​ $ 260,389 ​ $ 165,287 ​ $ 160,135 ​ $ 388,280 ​ $ 646,309 ​ $ 2,160,231 ​ The Company did not have any material revolving loans convert to term during the three and six months ended June 30, 2020. ​ ​ Acquired Loans ​ The Company has purchased loans that, at the time of acquisition, exhibited more than insignificant credit deterioration since origination. The Company has elected to treat all loans that were previously identified as PCI as PCD. As of June 30, 2020, the amortized cost of the Company’s PCD loans totaled $73.2 million, which had an estimated ALLL of $4.5 million. ​ Prior to the adoption of ASC 326 The following table shows the aging of the Company’s loan portfolio, by class, at December 31, 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Greater than ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 30-59 Days ​ 60-89 Days ​ 90 Days and ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Past Due ​ Past Due ​ still Accruing ​ PCI ​ Nonaccrual ​ Current ​ Total Loans Construction and Land Development ​ $ 4,563 ​ $ 482 ​ $ 189 ​ $ 10,944 ​ $ 3,703 ​ $ 1,231,043 ​ $ 1,250,924 Commercial Real Estate - Owner Occupied ​ 3,482 ​ 2,184 ​ 1,062 ​ 27,438 ​ 6,003 ​ 2,001,074 ​ 2,041,243 Commercial Real Estate - Non-Owner Occupied ​ 457 ​ — ​ 1,451 ​ 14,565 ​ 381 ​ 3,269,244 ​ 3,286,098 Multifamily Real Estate ​ 223 ​ — ​ 474 ​ 94 ​ — ​ 632,952 ​ 633,743 Commercial & Industrial ​ 8,698 ​ 1,598 ​ 449 ​ 1,579 ​ 1,735 ​ 2,099,974 ​ 2,114,033 Residential 1-4 Family - Commercial ​ 1,479 ​ 2,207 ​ 674 ​ 12,205 ​ 4,301 ​ 703,471 ​ 724,337 Residential 1-4 Family - Consumer ​ 16,244 ​ 3,072 ​ 4,515 ​ 14,713 ​ 9,292 ​ 842,667 ​ 890,503 Residential 1-4 Family - Revolving ​ 10,190 ​ 1,784 ​ 3,357 ​ 4,127 ​ 2,080 ​ 637,966 ​ 659,504 Auto ​ 2,525 ​ 236 ​ 272 ​ 4 ​ 563 ​ 346,819 ​ 350,419 Consumer ​ 2,128 ​ 1,233 ​ 953 ​ 668 ​ 77 ​ 367,794 ​ 372,853 Other Commercial ​ ​ 464 ​ ​ — ​ ​ — ​ ​ 344 ​ ​ 97 ​ ​ 286,374 ​ ​ 287,279 Total loans held for investment ​ $ 50,453 ​ $ 12,796 ​ $ 13,396 ​ $ 86,681 ​ $ 28,232 ​ $ 12,419,378 ​ $ 12,610,936 ​ The following table shows the PCI loan portfolios, by class and their delinquency status, at December 31, 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 30-89 Days Greater than ​ ​ ​ ​ ​ ​ Past Due ​ 90 Days ​ Current ​ Total Construction and Land Development ​ $ 136 ​ $ 343 ​ $ 10,465 ​ $ 10,944 Commercial Real Estate - Owner Occupied ​ 480 ​ 6,884 ​ 20,074 ​ 27,438 Commercial Real Estate - Non-Owner Occupied ​ 848 ​ 987 ​ 12,730 ​ 14,565 Multifamily Real Estate ​ — ​ — ​ 94 ​ 94 Commercial & Industrial ​ — ​ 989 ​ 590 ​ 1,579 Residential 1-4 Family - Commercial ​ 543 ​ 1,995 ​ 9,667 ​ 12,205 Residential 1-4 Family - Consumer ​ 927 ​ 1,781 ​ 12,005 ​ 14,713 Residential 1-4 Family - Revolving ​ 287 ​ 205 ​ 3,635 ​ 4,127 Auto ​ ​ — ​ ​ — ​ ​ 4 ​ ​ 4 Consumer ​ ​ — ​ ​ 9 ​ ​ 659 ​ ​ 668 Other Commercial ​ — ​ — ​ 344 ​ 344 Total ​ $ 3,221 ​ $ 13,193 ​ $ 70,267 ​ $ 86,681 ​ ​ As of December 31, 2019, the Company measured the amount of impairment by evaluating loans either in their collective homogeneous pools or individually. The following table shows the Company’s loans, excluding PCI loans, by class at December 31, 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019 ​ ​ ​ Unpaid ​ ​ ​ ​ Recorded ​ Principal ​ Related ​ ​ Investment ​ Balance ​ Allowance Loans without a specific allowance ​ ​ ​ Construction and Land Development ​ $ 5,877 ​ $ 7,174 ​ $ — Commercial Real Estate - Owner Occupied ​ 8,801 ​ 9,296 ​ — Commercial Real Estate - Non-Owner Occupied ​ 3,510 ​ 4,059 ​ — Commercial & Industrial ​ 3,668 ​ 3,933 ​ — Residential 1-4 Family - Commercial ​ 4,047 ​ 4,310 ​ — Residential 1-4 Family - Consumer ​ 8,420 ​ 9,018 ​ — Residential 1-4 Family - Revolving ​ 862 ​ 865 ​ — Total impaired loans without a specific allowance ​ $ 35,185 ​ $ 38,655 ​ $ — Loans with a specific allowance ​ ​ ​ Construction and Land Development ​ $ 984 ​ $ 1,032 ​ $ 49 Commercial Real Estate - Owner Occupied ​ 2,820 ​ 3,093 ​ 146 Commercial Real Estate - Non-Owner Occupied ​ 335 ​ 383 ​ 2 Commercial & Industrial ​ 2,568 ​ 2,590 ​ 619 Residential 1-4 Family - Commercial ​ 1,726 ​ 1,819 ​ 162 Residential 1-4 Family - Consumer ​ 12,026 ​ 12,670 ​ 1,242 Residential 1-4 Family - Revolving ​ 2,186 ​ 2,369 ​ 510 Auto ​ 563 ​ 879 ​ 221 Consumer ​ 168 ​ 336 ​ 46 Other Commercial ​ ​ 562 ​ ​ 567 ​ ​ 30 Total impaired loans with a specific allowance ​ $ 23,938 ​ $ 25,738 ​ $ 3,027 Total impaired loans ​ $ 59,123 ​ $ 64,393 ​ $ 3,027 ​ The following table shows the average recorded investment and interest income recognized for the Company’s loans, excluding PCI loans, by class for the three and six months ended June 30, 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ Six Months Ended ​ ​ June 30, 2019 ​ June 30, 2019 ​ ​ ​ Interest ​ ​ Interest ​ ​ Average ​ Income ​ Average ​ Income ​ ​ Investment ​ Recognized ​ Investment ​ Recognized Construction and Land Development ​ $ 7,811 ​ $ 13 ​ $ 8,167 ​ $ 54 Commercial Real Estate - Owner Occupied ​ 12,002 ​ 91 ​ 12,030 ​ 200 Commercial Real Estate - Non-Owner Occupied ​ 6,931 ​ 60 ​ 6,944 ​ 119 Commercial & Industrial ​ 3,038 ​ 27 ​ 3,081 ​ 59 Residential 1-4 Family - Commercial ​ 6,125 ​ 29 ​ 5,848 ​ 56 Residential 1-4 Family - Consumer ​ 19,830 ​ 50 ​ 19,939 ​ 187 Residential 1-4 Family - Revolving ​ 3,489 ​ 38 ​ 3,506 ​ 78 Auto ​ 493 ​ — ​ 520 ​ 1 Consumer ​ 191 ​ 2 ​ 195 ​ 3 Other Commercial ​ ​ 579 ​ ​ 7 ​ ​ 583 ​ ​ 15 Total impaired loans ​ $ 60,489 ​ $ 317 ​ $ 60,813 ​ $ 772 ​ At December 31, 2019, the Company considered TDRs to be impaired loans. A modification of a loan’s terms constitutes a TDR if the creditor grants a concession that it would not otherwise consider to the borrower for economic or legal reasons related to the borrower’s financial difficulties. All loans that are considered to be TDRs are evaluated for impairment in accordance with the Company’s allowance for credit loss methodology. The following table provides a summary, by class, of TDRs that continue to accrue interest under the terms of the applicable restructuring agreement, which are considered to be performing, and TDRs that have been placed on nonaccrual status, which are considered to be nonperforming, as of December 31, 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019 ​ No. of Recorded Outstanding ​ ​ Loans ​ Investment ​ Commitment Performing ​ ​ Construction and Land Development 4 ​ $ 1,114 ​ $ — Commercial Real Estate - Owner Occupied 6 ​ 2,228 ​ 26 Commercial Real Estate - Non-Owner Occupied 1 ​ 1,089 ​ — Commercial & Industrial 4 ​ 1,020 ​ — Residential 1-4 Family - Commercial 5 ​ 290 ​ — Residential 1-4 Family - Consumer 69 ​ 9,396 ​ — Residential 1-4 Family - Revolving 2 ​ 56 ​ — Consumer 4 ​ 29 ​ — Other Commercial ​ 1 ​ ​ 464 ​ ​ — Total performing 96 ​ $ 15,686 ​ $ 26 Nonperforming ​ ​ Commercial Real Estate - Owner Occupied 2 ​ $ 176 ​ $ — Commercial & Industrial 1 ​ 55 ​ — Residential 1-4 Family - Consumer 19 ​ 3,522 ​ — Residential 1-4 Family - Revolving 2 ​ 57 ​ — Total nonperforming 24 ​ $ 3,810 ​ $ — Total performing and nonperforming 120 ​ $ 19,496 ​ $ 26 ​ The Company considers a default of a TDR to occur when the borrower is 90 days past due following the restructuring or a foreclosure and repossession of the applicable collateral occurs. During the three and six months ended June 30, 2019 the Company did not have any material loans that went into default that had been restructured in the twelve-month period prior to the time of default. ​ The following table shows, by class and modification type, TDRs that occurred during the three and six months ended June 30, 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ All Restructurings ​ ​ Three Months Ended June 30, 2019 ​ Six Months Ended June 30, 2019 ​ ​ 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 ​ ​ Residential 1-4 Family - Commercial — ​ $ — 1 ​ $ 74 Residential 1-4 Family - Consumer 1 ​ 43 3 ​ 299 Consumer — ​ — 1 ​ 9 Total loan term extended at a market rate 1 ​ $ 43 5 ​ $ 382 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Term modification, below market rate ​ ​ Residential 1-4 Family - Consumer 9 ​ $ 483 14 ​ $ 1,410 Consumer ​ — ​ ​ — ​ 1 ​ ​ 6 Total loan term extended at a below market rate 9 ​ $ 483 15 ​ $ 1,416 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total 10 ​ $ 526 20 ​ $ 1,798 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Allowance for Loan and Lease Losses The following table shows the ALLL activity by class for the six months ended June 30, 2019. The table below includes 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): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Six Months Ended June 30, 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 ​ $ 97 ​ $ (800) ​ $ (101) ​ $ 5,999 Commercial Real Estate - Owner Occupied ​ 4,023 ​ 54 ​ (231) ​ 235 ​ 4,081 Commercia

INTANGIBLE ASSETS

INTANGIBLE ASSETS	6 Months Ended
	Jun. 30, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
INTANGIBLE ASSETS	5. 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. In accordance with ASC 350, Intangibles-Goodwill and Other , the Company reviews the carrying value of indefinite lived intangible assets at least annually or more frequently if certain impairment indicators exist. The COVID-19 pandemic has disrupted the economy and created significant volatility in the financial markets. The volatility in the financial markets has adversely affected the Company’s expected future cash flows, due to the lower interest rate environment and other factors, and resulted in a decline in the market price of the Company’s common stock, along with others in the financial services industry. The Company performed its annual impairment testing in the second quarter of 2020 and, while the fair value of the reporting unit declined from the prior test, the Company determined that there was no impairment to its goodwill or intangible assets. In the normal course of business, the Company routinely monitors the impact of the changes in the financial markets and includes these assessments in the Company’s goodwill impairment process. Amortization expense of intangibles for the three and six months ended June 30, 2020 totaled $4.2 million and $8.6 million, respectively; and for the three and six months ended June 30, 2019 totaled $4.9 million and $9.2 million, respectively. As of June 30, 2020, the estimated remaining amortization expense of intangibles is as follows for the years ending (dollars in thousands): ​ ​ ​ ​ For the remaining six months of 2020 $ 7,920 2021 ​ ​ 13,874 2022 ​ ​ 11,490 2023 ​ ​ 9,687 2024 ​ ​ 7,818 Thereafter ​ ​ 14,316 Total estimated amortization expense ​ $ 65,105 ​ ​ ​

LEASES

LEASES	6 Months Ended
	Jun. 30, 2020
Leases [Abstract]
LEASES	6. LEASES The Company enters into both lessor and lessee arrangements and determines if an arrangement is a lease at inception. As both a lessee and lessor, the Company elected the practical expedient permitted under the transition guidance within the standard to account for lease and non-lease components as a single lease component for all asset classes. Lessor Arrangements The Company’s lessor arrangements consist of sales-type and direct financing leases for equipment. Lease payment terms are fixed and are typically payable in monthly installments with terms ranging from 31 to 125 months . The lease arrangements may contain renewal options and purchase options that allow the lessee to purchase the leased equipment at the end of the lease term. The leases generally do not contain non-lease components. The Company has no lease transactions with related parties. At lease inception the Company estimates the expected residual value of the leased property at the end of the lease term by considering both internal and third-party appraisals. In certain cases, the Company obtains lessee-provided residual value guarantees and third-party RVI to reduce its residual asset risk. At June 30, 2020 the carrying value of residual assets covered by residual value guarantees and RVI was $7.5 million. ​ The net investment in sales-type and direct financing leases consists of the carrying amount of the lease receivables plus unguaranteed residual assets, net of unearned income and any deferred selling profit on direct financing leases. The lease receivables include the lessor’s right to receive lease payments and the guaranteed residual asset value the lessor expects to derive from the underlying assets at the end of the lease term. At June 30, 2020, the total net investment in sales-type and direct financing leases was $81.3 million, comprised of $78.7 million in lease receivables and $2.6 million in unguaranteed residuals. There were no significant changes in the balance of the Company’s unguaranteed residual assets for the period ending June 30, 2020. The Company’s net investment in sales-type and direct financing leases are included in Loans Held for Investment (net of deferred fees and costs) on the Company’s Consolidated Balance Sheets. For the three and six months ended June 30, 2020, total lease income was $290,000 and $340,000 , and is recorded within Interest Income on the Company’s Consolidated Statements of Income. There was no lease income for the three and six months ended June 30, 2019. ​ Lessee Arrangements The Company’s lessee arrangements consist of operating and finance leases; however the majority of the leases have been classified as non-cancellable operating leases and are primarily for real estate leases with remaining lease terms of up to 14 years . The Company’s real estate lease agreements do not contain residual value guarantees and most agreements do not contain restrictive covenants. The Company does not have any material arrangements where the Company is in a sublease contract. ​ Lessee arrangements with an initial term of twelve months or less are not recorded on the Consolidated Balance Sheet. The ROU Assets and lease liabilities associated with operating and finance leases greater than twelve months are recorded in the Company’s Consolidated Balance Sheets; ROU Assets within Other Assets and lease liabilities within Other Liabilities. ROU Assets represent the Company’s right to use an underlying asset over the course of the lease term and lease liabilities represent the Company’s obligation to make lease payments arising from the lease. The initial measurement of lease liabilities and ROU Assets are the same for operating and finance leases. Lease liabilities are recognized at the commencement date based on the present value of the remaining lease payments, discounted using the incremental borrowing rate. As most of the Company’s leases do not provide an implicit rate, the Company uses an incremental borrowing rate based on the information available at commencement date in determining the present value of lease payments. ROU Assets are recognized at commencement date based on the initial measurement of the lease liability, any lease payments made excluding lease incentives, and any initial direct costs incurred. Most of the Company’s operating leases include one or more options to renew; however, the Company is not reasonably certain to exercise those options and therefore does not include the renewal options in the measurement of the operating ROU Assets and lease liabilities. ​ Lease expense for operating lease payments is recognized on a straight-line basis over the lease term and recorded in Occupancy Expense within noninterest expense on the Company’s Consolidated Statements of Income. Finance lease expenses consist of straight-line amortization expense of the ROU Assets recognized over the lease term and interest expense on the lease liability. Total finance lease expenses for the amortization of the ROU Assets are recorded in Occupancy Expense within noninterest expense on the Company’s Consolidated Statements of Income and interest expense on the finance lease liability is recorded in Interest Expense on Long-Term Borrowings within total interest expense on the Company’s Consolidated Statements of Income. ​ As of June 30, 2020, the Company had no sales leaseback transactions or leases that have no t yet commenced that create significant rights and obligations. The tables below provide information about the Company’s lessee lease portfolio and other supplemental lease information (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 ​ ​ ​ December 31, 2019 ​ ​ Operating ​ ​ Finance ​ ​ ​ Operating Right-of-use-assets ​ $ 53,208 ​ ​ $ 7,884 ​ ​ $ 54,941 ​ Lease liabilities ​ ​ 63,523 ​ ​ ​ 10,559 ​ ​ ​ 66,052 ​ Lease Term and Discount Rate of Operating leases: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted-average remaining lease term (years) ​ 7.00 ​ ​ ​ 8.58 ​ ​ ​ 7.36 ​ Weighted-average discount rate (1) ​ 2.43 % ​ ​ 1.17 % ​ ​ 2.69 % (1) An incremental borrowing rate is used based on information available at commencement date of lease. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Six months ended June 30, ​ 2020 ​ 2019 Cash paid for amounts included in measurement of lease liabilities: ​ ​ ​ ​ ​ ​ Operating Cash Flows from Finance Leases ​ $ 10 ​ $ - Operating Cash Flows from Operating Leases ​ 6,893 ​ ​ 6,880 Right-of-use assets obtained in exchange for lease obligations: ​ ​ ​ ​ ​ Operating leases ​ 3,183 ​ ​ 3,619 Finance leases ​ ​ 10,549 ​ ​ - ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three months ended June 30, ​ Six months ended June 30, ​ ​ ​ 2020 ​ ​ 2019 ​ ​ 2020 ​ ​ 2019 Net Operating Lease Cost ​ $ 2,928 ​ $ 3,134 ​ $ 5,847 ​ $ 6,136 Finance Lease Cost: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Amortization of right-of-use assets ​ ​ 77 ​ ​ - ​ ​ 77 ​ ​ - Interest on lease liabilities ​ ​ 10 ​ ​ - ​ ​ 10 ​ ​ - Total Lease Cost ​ $ 3,015 ​ $ 3,134 ​ $ 5,934 ​ $ 6,136 ​ The maturities of lessor and lessee arrangements outstanding at June 30, 2020 are presented in the tables below (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 ​ ​ Lessor ​ Lessee ​ ​ ​ Sales-type and Direct Financing ​ Operating ​ Finance For the remaining six months of 2020 $ 7,894 ​ $ 6,526 ​ $ — 2021 ​ 16,216 ​ ​ 12,182 ​ ​ 1,261 2022 ​ 17,093 ​ ​ 10,920 ​ ​ 1,292 2023 ​ 15,503 ​ ​ 9,958 ​ ​ 1,325 2024 ​ 13,130 ​ ​ 8,640 ​ ​ 1,358 2025 ​ ​ 4,310 ​ ​ 6,296 ​ ​ 1,392 Thereafter ​ 10,548 ​ ​ 15,088 ​ ​ 4,515 Total undiscounted cash flows ​ 84,694 ​ ​ 69,610 ​ ​ 11,143 Less: Adjustments (1) ​ 5,996 ​ ​ 6,087 ​ ​ 584 Total (2) ​ $ 78,698 ​ $ 63,523 ​ $ 10,559 (1) Lessor – unearned income and guaranteed residual value; Lessee – imputed interest. (2) Represents lease receivables for lessor arrangements and lease liabilities for lessee arrangements ​

BORROWINGS

BORROWINGS	6 Months Ended
	Jun. 30, 2020
Debt Disclosure [Abstract]
BORROWINGS	7. 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 June 30, 2020 and December 31, 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, ​ December 31, ​ ​ 2020 ​ 2019 Securities sold under agreements to repurchase ​ $ 77,216 ​ $ 66,053 ​ Federal Funds Purchased ​ ​ — ​ ​ — ​ FHLB advances ​ — ​ 370,200 ​ Total short-term borrowings ​ $ 77,216 ​ $ 436,253 ​ ​ ​ ​ ​ ​ ​ ​ ​ Average outstanding balance during the period ​ $ 272,470 ​ $ 673,116 ​ Average interest rate (during the period) ​ 1.13 % 2.30 % Average interest rate at end of period ​ 0.32 % 1.52 % ​ The Bank maintains federal funds lines with several correspondent banks, the remaining available balance was $972.0 million and $682.0 million at June 30, 2020 and December 31, 2019, respectively. The Company maintains an alternate line of credit at a correspondent bank, which had an available balance of $25.0 million at both June 30, 2020 and December 31, 2019. The Company has certain restrictive covenants related to certain asset quality, capital, and profitability metrics associated with these lines and is considered to be in compliance with such covenants as of June 30, 2020. Additionally, the Company had a collateral dependent line of credit with the FHLB of up to $5.3 billion and $5.2 billion at June 30, 2020 and December 31, 2019, 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 $14.5 million at June 30, 2020. ​ 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 June 30, 2020: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Trust ​ ​ ​ ​ ​ ​ ​ Preferred ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Capital ​ ​ ​ ​ Spread to ​ ​ ​ ​ ​ ​ Securities (1) ​ Investment (1) ​ 3-Month LIBOR ​ Rate (2) ​ Maturity Trust Preferred Capital Note - Statutory Trust I ​ $ 22,500 ​ $ 696 2.75 % 3.05 % 6/17/2034 Trust Preferred Capital Note - Statutory Trust II ​ 36,000 ​ 1,114 1.40 % 1.70 % 6/15/2036 VFG Limited Liability Trust I Indenture ​ 20,000 ​ 619 2.73 % 3.03 % 3/18/2034 FNB Statutory Trust II Indenture ​ 12,000 ​ 372 3.10 % 3.40 % 6/26/2033 Gateway Capital Statutory Trust I ​ 8,000 ​ 248 3.10 % 3.40 % 9/17/2033 Gateway Capital Statutory Trust II ​ 7,000 ​ 217 2.65 % 2.95 % 6/17/2034 Gateway Capital Statutory Trust III ​ 15,000 ​ 464 1.50 % 1.80 % 5/30/2036 Gateway Capital Statutory Trust IV ​ 25,000 ​ 774 1.55 % 1.85 % 7/30/2037 MFC Capital Trust II ​ 5,000 ​ 155 2.85 % 3.15 % 1/23/2034 Total ​ $ 150,500 ​ $ 4,659 (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 Company’s Consolidated Balance Sheets. (2) Rate as of June 30, 2020. 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 had been fully amortized at June 30, 2020. The acquired subordinated notes have a fixed interest rate of 6.75% and a maturity date of June 30, 2025. At June 30, 2020 and December 31, 2019, the contractual principal reported for subordinated notes was $158.5 million; remaining issuance discount as of June 30, 2020 and December 31, 2019 is $1.3 million and $1.4 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 June 30, 2020. 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. The amortization expense is included as a component of interest expense on long-term borrowings on the Company’s Consolidated Statements of Income and was $ 502,000 and $994,000 for the three and six months ended June 30, 2019, respectively. On August 29, 2019, the Company repaid the floating rate FHLB advances. As of June 30, 2020, 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)(2) ​ Maturity Date ​ Advance Amount Convertible Flipper (0.75) % — % 8/17/2029 ​ $ 50,000 Convertible Flipper (0.75) % — % 5/22/2029 ​ 150,000 Convertible Flipper (0.75) % — % 5/30/2029 ​ 50,000 Convertible Flipper ​ (0.75) % — % 6/21/2029 ​ ​ 100,000 Fixed Rate Convertible ​ - ​ 1.78 % 10/26/2028 ​ ​ 200,000 Fixed Rate Credit ​ - ​ 1.54 % 10/2/2020 ​ ​ 10,000 ​ ​ ​ ​ ​ ​ ​ ​ $ 560,000 (1) Interest rates calculated using non-rounded numbers. (2) Convertible Flippers have interest rate floor of 0% 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)(2) ​ 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. (2) Convertible Flippers have interest rate floor of 0% ​ For information on the carrying value of loans and securities pledged as collateral on FHLB advances as of June 30, 2020 and December 31, 2019, refer to Note 8 "Commitments and Contingencies." During the second quarter of 2020, in connection with the loans originated as part of the PPP, the Company borrowed under the Federal Reserve’s PPPLF. Under the terms of the PPPLF, the Company can borrow funds which are secured by the Company’s PPP loans. As of June 30, 2020, the Company’s outstanding advances under the PPPLF were $189.9 million. The interest rate on the advances is fixed at a rate of 0.35% through the advance maturities in April 2022. The Company’s available borrowing capacity under the PPPLF as of June 30, 2020 was $1.5 billion. As of June 30, 2020, the contractual maturities of long-term debt are as follows for the years ending (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Trust ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Preferred ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value ​ ​ ​ ​ ​ Capital ​ Subordinated ​ PPPLF ​ FHLB ​ Premium ​ Total Long-term ​ ​ Notes ​ Debt ​ Advances ​ Advances ​ (Discount) (1) ​ Borrowings For the remaining six months of 2020 ​ $ — ​ $ — ​ $ — ​ $ 10,000 ​ $ (456) ​ $ 9,544 2021 ​ — ​ — ​ ​ — ​ — ​ (1,008) ​ (1,008) 2022 ​ — ​ — ​ ​ 189,941 ​ — ​ (1,030) ​ 188,911 2023 ​ — ​ — ​ ​ — ​ — ​ (1,053) ​ (1,053) 2024 ​ — ​ — ​ ​ — ​ — ​ (1,078) ​ (1,078) Thereafter ​ 155,159 ​ 158,500 ​ ​ — ​ 550,000 ​ (11,161) ​ 852,498 Total long-term borrowings ​ $ 155,159 ​ $ 158,500 ​ $ 189,941 ​ $ 560,000 ​ $ (15,786) ​ $ 1,047,814 (1) Includes discount on issued subordinated notes. ​ ​

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	6 Months Ended
	Jun. 30, 2020
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENCIES	8. 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 and funding information, current and future economic conditions, risk ratings, and past due status among other factors in the consideration of expected credit losses in the Company’s off-balance sheet commitments to extend credit. The Company also records an indemnification reserve that includes balances relating to mortgage loans previously sold based on historical statistics and loss rates. As of June 30, 2020 and December 31, 2019, the Company’s reserves for off-balance sheet credit risk and indemnification were $12.9 million and $2.6 million, respectively. Commitments to extend credit are agreements to lend to customers as long as there are no violations of any conditions established in the contracts. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Because many of the commitments may expire without being completely drawn upon, the total commitment amounts do not necessarily represent future cash requirements. Letters of credit are conditional commitments issued by the Company to guarantee the performance of customers to third parties. The credit risk involved in issuing letters of credit is essentially the same as that involved in extending loans to customers. The following table presents the balances of commitments and contingencies (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 December 31, 2019 Commitments with off-balance sheet risk: ​ ​ Commitments to extend credit (1) ​ $ 4,968,910 ​ $ 4,691,272 Standby letters of credit ​ 161,958 ​ 209,658 Total commitments with off-balance sheet risk ​ $ 5,130,868 ​ $ 4,900,930 (1) Includes unfunded overdraft protection. ​ ​ ​ ​ ​ ​ ​ Prior to the first quarter of 2020, the Company was required to maintain a reserve against its deposits in accordance with Regulation D of the Federal Reserve Act. On March 15, 2020, the Federal Reserve Board announced that reserve requirement ratios would be reduced to zero percent effective March 26, 2020. This action eliminated reserve requirements for all depository institutions. As of June 30, 2020, the Company had approximately $ 342.9 million in deposits in other financial institutions, of which $271.6 million served as collateral for cash flow and loan swap derivatives. The Company had approximately $ 68.2 million in deposits in other financial institutions that were uninsured at June 30, 2020. 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. Refer to Note 9 “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 June 30, 2020 and December 31, 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pledged Assets as of June 30, 2020 ​ ​ ​ ​ ​ ​ AFS HTM ​ ​ ​ ​ ​ ​ Cash ​ Securities (1) ​ Securities (1) ​ Loans (2) ​ Total Public deposits ​ $ — ​ $ 454,733 ​ $ 432,310 ​ $ — ​ $ 887,043 Repurchase agreements ​ — ​ 93,551 ​ — ​ — ​ 93,551 FHLB advances ​ — ​ 57,534 ​ — ​ 4,193,380 ​ 4,250,914 Derivatives ​ 271,551 ​ 1,033 ​ — ​ — ​ 272,584 Fed Funds ​ ​ — ​ ​ — ​ ​ — ​ ​ 319,068 ​ ​ 319,068 PPP Loans ​ ​ — ​ ​ — ​ ​ — ​ ​ 189,941 ​ ​ 189,941 Other purposes ​ — ​ ​ 127,384 ​ ​ 8,901 ​ ​ — ​ ​ 136,285 Total pledged assets ​ $ 271,551 ​ $ 734,235 ​ $ 441,211 ​ $ 4,702,389 ​ $ 6,149,386 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (1) Balance represents market value. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (2) Balance represents book value. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pledged Assets as of December 31, 2019 ​ ​ ​ ​ ​ ​ AFS HTM ​ ​ ​ ​ ​ ​ Cash ​ Securities (1) ​ Securities (1) ​ Loans (2) ​ Total Public deposits ​ $ — ​ $ 467,266 ​ $ 292,096 ​ $ — ​ $ 759,362 Repurchase agreements ​ — ​ 79,299 ​ 7,602 ​ — ​ 86,901 FHLB advances ​ — ​ 63,812 ​ — ​ 3,846,934 ​ 3,910,746 Derivatives ​ 116,839 ​ 1,260 ​ — ​ — ​ 118,099 Fed Funds ​ ​ — ​ ​ — ​ ​ — ​ ​ 292,738 ​ ​ 292,738 Other purposes ​ — ​ 122,358 ​ 10,654 ​ — ​ 133,012 Total pledged assets ​ $ 116,839 ​ $ 733,995 ​ $ 310,352 ​ $ 4,139,672 ​ $ 5,300,858 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (1) Balance represents book value. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (2) Balance represents market value. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

DERIVATIVES

DERIVATIVES	6 Months Ended
	Jun. 30, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
DERIVATIVES	9. DERIVATIVES The Company is exposed to economic risks arising from its business operations and uses derivatives primarily to manage risk associated with changing interest rates, and to assist customers with their risk management objectives. The Company designates certain derivatives as hedging instruments in a qualifying hedge accounting relationship (cash flow or fair value hedge). The remaining are classified as free-standing derivatives consisting of customer accommodation loan swaps and interest rate lock commitments that do not qualify for hedge accounting. Derivatives Counterparty Credit Risk Derivative instruments contain an element of credit risk that arises from the potential failure of a counterparty to perform according to the terms of the contract. The Company’s exposure to derivative counterparty credit risk, at any point in time, is equal to the amount reported as a derivative asset on the Company’s Consolidated Balance Sheets, assuming no recoveries of underlying collateral. Effective January 1, 2019, as required under the Dodd-Frank Act, the Company clears eligible derivative transactions through CCPs such as the CME and LCH, which are often referred to as “central clearinghouses”. The Company clears certain OTC derivatives with central clearinghouses through FCMs as part of the regulatory requirement. The use of the CCPs and the FCMs reduces the Company’s bilateral counterparty credit exposures while it increases the Company’s credit exposures to CCPs and FCMs. The Company is required by CCPs to post initial and variation margin to mitigate the risk of non-payment through the Company’s FCMs. The Company’s FCM agreements governing these derivative transactions generally include provisions that may require the Company to post more collateral or otherwise change terms in the Company’s agreements under certain circumstances. For CME and LCH-cleared OTC derivatives, the Company characterizes variation margin cash payments as settlements. The Company also enters into legally enforceable master netting agreements and collateral agreements, where possible, with certain derivative counterparties to mitigate the risk of default on a bilateral basis. These bilateral agreements typically provide the right to offset exposures and require one counterparty to post collateral on derivative instruments in a net liability position to the other counterparty. Cash Flow Hedges The Company designates derivatives as cash flow hedges when they are used to manage exposure to variability in cash flows related to forecasted transactions on variable rate financial instruments. The Company uses interest rate swap agreements as part of its hedging strategy by exchanging a notional amount, equal to the principal amount of the borrowings or commercial loans, for fixed-rate interest based on benchmarked interest rates. The original terms and conditions of the interest rate swaps vary and range in length. Amounts receivable or payable are recognized as accrued under the terms of the agreements. All swaps were entered into with counterparties that met the Company’s credit standards, and the agreements contain collateral provisions protecting the at-risk party. The Company concluded that the credit risk inherent in the contract is not significant. The Company assesses the effectiveness of each hedging relationship on a periodic basis using statistical regression analysis. The Company also measures the ineffectiveness of each hedging relationship using the change in variable cash flows method which compares the cumulative changes in cash flows of the hedging instrument relative to cumulative changes in the hedged item’s cash flows. In accordance with ASC 815, Derivatives and Hedging , the effective portions of the derivatives’ unrealized gains or losses are recorded as a component of other comprehensive income. For the period ended December 31, 2019, the Company’s cash flow hedges were highly effective. The Company did no t have any derivatives designated as cash flow hedges outstanding at June 30, 2020. Fair Value Hedge Derivatives are designated as fair value hedges when they are used to manage exposure to changes in the fair value of certain financial assets and liabilities, referred to as the hedged items, which fluctuate in value as a result of movements in interest rates. Loans: During the normal course of business, the Company enters into swap agreements to convert certain long-term fixed-rate loans to floating rates to hedge the Company’s exposure to interest rate risk. The Company pays a fixed interest rate to the counterparty and receives a floating rate from the same counterparty calculated on the aggregate notional amount. At June 30, 2020 and December 31, 2019, the aggregate notional amount of the related hedged items for certain long-term fixed rate loans totaled $77.2 million and $83.1 million, respectively, and the fair value of the related hedged items was an unrealized loss of $6.2 million and $2.0 million, respectively. AFS Securities: The Company has entered into a swap agreement to hedge the interest rate risk on a portion of its fixed rate available for sale securities. At June 30, 2020 and December 31, 2019, the aggregate notional amount of the related hedged items of the AFS securities totaled $50 million and the fair value of the related hedged items was an unrealized loss of $8.3 million and $4.1 million, respectively. The Company applies hedge accounting in accordance with ASC 815, Derivatives and Hedging , and the fair value hedge and the underlying hedged item, attributable to the risk being hedged, are recorded at fair value with unrealized gains and losses being recorded on the Company’s Consolidated Statements of Income. Statistical regression analysis is used to assess hedge effectiveness, both at inception of the hedging relationship and on an ongoing basis. The regression analysis involves regressing the periodic change in fair value of the hedging instrument against the periodic changes in fair value of the asset being hedged due to changes in the hedged risk. The Company’s fair value hedges continue to be highly effective and had no material impact on the Consolidated Statements of Income, but if any ineffectiveness exists, portions of the unrealized gains or losses would be recorded in interest income or interest expense on the Company’s Consolidated Statements of Income. Loan Swaps During the normal course of business, the Company offers interest rate swap loan relationships (“loan swaps”) to its borrowers to help meet their financing needs. Upon entering into the loan swaps, the Company enters into offsetting positions with a third party in order to minimize interest rate risk. These back-to-back loan swaps qualify as financial derivatives with fair values as reported in “Other Assets” and “Other Liabilities” on the Company’s Consolidated Balance Sheets. The following table summarizes key elements of the Company’s derivative instruments as of June 30, 2020 and December 31, 2019, segregated by derivatives that are considered accounting hedges and those that are not (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 December 31, 2019 ​ ​ ​ ​ ​ Derivative (2) ​ ​ ​ ​ Derivative (2) ​ Notional or ​ ​ ​ ​ Notional or ​ ​ ​ ​ ​ ​ Contractual ​ ​ ​ ​ ​ ​ ​ Contractual ​ ​ ​ ​ ​ ​ ​ ​ Amount (1) ​ Assets ​ Liabilities ​ Amount (1) ​ Assets ​ Liabilities Derivatives designated as accounting hedges: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest rate contracts: ​ ​ ​ ​ ​ ​ ​ ​ ​ Cash flow hedges ​ $ — ​ $ — ​ $ — ​ $ 100,000 ​ $ — ​ $ 1,147 Fair value hedges ​ 127,172 ​ — ​ 14,530 ​ 133,078 ​ 182 ​ 6,256 Derivatives not designated as accounting hedges: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Loan Swaps : ​ ​ ​ ​ ​ ​ Pay fixed - receive floating interest rate swaps ​ 2,064,653 ​ — ​ 194,707 ​ 1,575,149 ​ 753 ​ 53,592 Pay floating - receive fixed interest rate swaps ​ 2,064,653 ​ 194,707 ​ — ​ 1,575,149 ​ 53,592 ​ 753 ​ (1) Notional amounts are not recorded on the Company’s Consolidated Balance Sheets and are generally used only as a basis on which interest and other payments are determined. (2) Balances represent fair value of derivative financial instruments. ​ The following table summarizes the carrying value of the Company’s hedged assets in fair value hedges and the associated cumulative basis adjustments included in those carrying values as of June 30, 2020 and December 31, 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 ​ December 31, 2019 ​ ​ ​ Cumulative ​ Cumulative ​ ​ ​ ​ ​ Amount of Basis ​ ​ ​ Amount of Basis ​ ​ ​ ​ ​ Adjustments ​ ​ ​ Adjustments ​ ​ ​ ​ ​ Included in the ​ ​ ​ Included in the ​ ​ Carrying Amount ​ Carrying ​ Carrying Amount ​ Carrying ​ ​ of Hedged ​ Amount of the ​ of Hedged ​ Amount of the ​ ​ Assets/(Liabilities) ​ Hedged ​ Assets/(Liabilities) ​ Hedged ​ ​ Amount (1) Assets/(Liabilities) ​ Amount (1) Assets/(Liabilities) Line items on the Consolidated Balance Sheets in which the hedged item is included: ​ ​ ​ ​ Securities available-for-sale (1) (2) ​ $ 191,589 ​ $ 8,309 ​ $ 206,799 ​ $ 4,072 Loans ​ 77,172 ​ 6,131 ​ 83,078 ​ 1,972 ​ (1) These amounts include the amortized cost basis of the investment securities designated in hedging relationships for which the hedged item is the last layer expected to be remaining at the end of the hedging relationship. At June 30, 2020 and December 31, 2019, the amortized cost basis of this portfolio was $ 192 million and $ 207 million, respectively and the cumulative basis adjustment associated with this hedge was $8.3 million and $4.1 million, respectively. The amount of the designated hedged item was $50 million. (2) Carrying value represents amortized cost. ​

STOCKHOLDERS' EQUITY

STOCKHOLDERS' EQUITY	6 Months Ended
	Jun. 30, 2020
Equity [Abstract]
STOCKHOLDERS' EQUITY	10. STOCKHOLDERS’ EQUITY Series A Preferred Stock On June 9, 2020, the Company issued and sold 6,900,000 depositary shares, each representing a 1/400th ownership interest in a share of its 6.875% Perpetual Non-Cumulative Preferred Stock, Series A (the “Series A preferred stock”), with a liquidation preference of $10,000 per share of Series A preferred stock (equivalent to $25 per depositary share), including 900,000 depositary shares pursuant to the exercise in full by the underwriters of their option to purchase additional depositary shares. The total net proceeds to the Company were approximately $166.4 million, after deducting the underwriting discount and other offering expenses payable by the Company. The Company intends to use the net proceeds of the offering for general corporate purposes in the ordinary course of its business. General corporate purposes may include repayment of debt, loan funding, acquisitions, additions to working capital, capital expenditures and investments in the Company’s subsidiaries. ​ Accumulated Other Comprehensive Income (Loss) The change in accumulated other comprehensive income (loss) for the three and six months ended June 30, 2020 is summarized as follows, net of tax (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Unrealized Gains ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (Losses) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Unrealized ​ for AFS ​ ​ ​ ​ Unrealized ​ ​ ​ ​ ​ Gains (Losses) ​ Securities ​ Change in Fair ​ Gains ​ ​ ​ ​ ​ on AFS ​ Transferred to ​ Value of Cash ​ (Losses) on ​ ​ ​ ​ ​ Securities ​ HTM ​ Flow Hedge ​ BOLI ​ Total Balance - March 31, 2020 ​ $ 51,035 ​ $ 70 ​ $ — ​ $ (2,776) ​ $ 48,329 Other comprehensive income (loss): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other comprehensive income (loss) before reclassification ​ 21,019 ​ ​ — ​ ​ — ​ ​ — ​ 21,019 Amounts reclassified from AOCI into earnings ​ (8,168) ​ ​ (5) ​ ​ — ​ ​ 129 ​ (8,044) Net current period other comprehensive income (loss) ​ 12,851 ​ (5) ​ — ​ 129 ​ 12,975 Balance - June 30, 2020 ​ $ 63,886 ​ $ 65 ​ $ — ​ $ (2,647) ​ $ 61,304 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Unrealized Gains ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (Losses) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Unrealized ​ for AFS ​ ​ ​ ​ Unrealized ​ ​ ​ ​ ​ Gains (Losses) ​ Securities ​ Change in Fair ​ Gains ​ ​ ​ ​ ​ on AFS ​ Transferred to ​ Value of Cash ​ (Losses) on ​ ​ ​ ​ ​ Securities ​ HTM ​ Flow Hedge ​ BOLI ​ Total Balance - December 31, 2019 ​ $ 37,877 ​ $ 75 ​ $ (782) ​ $ (1,595) ​ $ 35,575 Other comprehensive income (loss): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other comprehensive income (loss) before reclassification ​ 35,706 ​ ​ — ​ ​ (699) ​ ​ (1,289) ​ 33,718 Amounts reclassified from AOCI into earnings ​ (9,697) ​ ​ (10) ​ ​ 1,481 ​ ​ 237 ​ (7,989) Net current period other comprehensive income (loss) ​ 26,009 ​ (10) ​ 782 ​ (1,052) ​ 25,729 Balance - June 30, 2020 ​ $ 63,886 ​ $ 65 ​ $ — ​ $ (2,647) ​ $ 61,304 ​ ​ The change in accumulated other comprehensive income (loss) for the three and six months ended June 30, 2019 is summarized as follows, net of tax (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Unrealized Gain ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (Losses) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Unrealized ​ for AFS ​ ​ ​ ​ Unrealized ​ ​ ​ ​ ​ Gains (Losses) ​ Securities ​ Change in Fair ​ Gains ​ ​ ​ ​ ​ on AFS ​ Transferred to ​ Value of Cash ​ (Losses) ​ ​ ​ ​ ​ Securities ​ HTM ​ Flow Hedge ​ on BOLI ​ Total Balance - March 31, 2019 ​ $ 14,047 ​ $ 90 ​ $ (4,733) ​ $ (1,007) ​ $ 8,397 Other comprehensive income (loss): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other comprehensive income (loss) before reclassification ​ 22,151 ​ ​ — ​ ​ (2,595) ​ ​ — ​ ​ 19,556 Amounts reclassified from AOCI into earnings ​ (73) ​ ​ (5) ​ ​ 173 ​ ​ 19 ​ ​ 114 Net current period other comprehensive income (loss) ​ 22,078 ​ (5) ​ (2,422) ​ 19 ​ 19,670 Balance - June 30, 2019 ​ $ 36,125 ​ $ 85 ​ $ (7,155) ​ $ (988) ​ $ 28,067 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Unrealized Gain ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (Losses) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Unrealized ​ for AFS ​ ​ ​ ​ Unrealized ​ ​ ​ ​ ​ Gains (Losses) ​ Securities ​ Change in Fair ​ Gains ​ ​ ​ ​ ​ on AFS ​ Transferred to ​ Value of Cash ​ (Losses) ​ ​ ​ ​ ​ Securities ​ HTM ​ Flow Hedge ​ 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 ​ 42,233 ​ ​ — ​ ​ (4,055) ​ ​ — ​ ​ 38,178 Amounts reclassified from AOCI into earnings ​ (159) ​ ​ (10) ​ ​ 293 ​ ​ 38 ​ ​ 162 Net current period other comprehensive income (loss) ​ 42,074 ​ (10) ​ (3,762) ​ 38 ​ 38,340 Balance - June 30, 2019 ​ $ 36,125 ​ $ 85 ​ $ (7,155) ​ $ (988) ​ $ 28,067 ​

FAIR VALUE MEASUREMENTS

FAIR VALUE MEASUREMENTS	6 Months Ended
	Jun. 30, 2020
Fair Value Disclosures [Abstract]
FAIR VALUE MEASUREMENTS	11. FAIR VALUE MEASUREMENTS The Company follows ASC 820, Fair Value Measurements and Disclosures , to record fair value adjustments to certain assets and liabilities and to determine fair value disclosures. ASC 820 clarifies that fair value of certain assets and liabilities is an exit price, representing the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between willing market participants. ASC 820 specifies a hierarchy of valuation techniques based on whether the inputs to those valuation techniques are observable or unobservable. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect the Company’s market assumptions. The three levels of the fair value hierarchy under ASC 820 based on these two types of inputs are as follows: Level 1 Valuation is based on quoted prices in active markets for identical assets and liabilities. Level 2 Valuation is based on observable inputs including quoted prices in active markets for similar assets and liabilities, quoted prices for identical or similar assets and liabilities in less active markets, and model-based valuation techniques for which significant assumptions can be derived primarily from or corroborated by observable data in the markets. Level 3 Valuation is based on model-based techniques that use one or more significant inputs or assumptions that are unobservable in the market. These unobservable inputs reflect the Company’s assumptions about what market participants would use and information that is reasonably available under the circumstances without undue cost and effort. Assets and Liabilities Measured at Fair Value on a Recurring Basis The following describes the valuation techniques used by the Company to measure certain financial assets and liabilities recorded at fair value on a recurring basis in the financial statements. Derivative instruments As discussed in Note 9 “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 June 30, 2020 and December 31, 2019 . The Company has considered counterparty credit risk in the valuation of its derivative assets and has considered its own credit risk in the valuation of its derivative liabilities. Mortgage banking derivatives as of June 30, 2020 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 June 30, 2020 and December 31, 2019 . 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 table below. Loans Held for Sale Loans held for sale are carried at fair value. These loans currently consist of residential loans originated for sale in the secondary market. Fair value is based on the price secondary markets are currently offering for similar loans using observable market data which is not materially different than cost due to the short duration between origination and sale (Level 2). Gains and losses on the sale of loans are recorded in current period earnings as a component of "Mortgage banking income" on the Company’s Consolidated Statements of Income. The following table presents the balances of financial assets and liabilities measured at fair value on a recurring basis at June 30, 2020 and December 31, 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurements at June 30, 2020 using ​ ​ ​ Significant ​ ​ ​ ​ ​ ​ Quoted Prices in ​ Other ​ Significant ​ ​ ​ ​ ​ Active Markets for ​ Observable ​ Unobservable ​ ​ ​ ​ ​ Identical Assets ​ Inputs ​ Inputs ​ ​ ​ ​ ​ Level 1 ​ Level 2 ​ Level 3 ​ Balance ASSETS ​ ​ ​ ​ ​ AFS securities: ​ ​ ​ ​ ​ U.S. government and agency securities ​ $ — ​ $ 14,646 ​ $ — ​ $ 14,646 Obligations of states and political subdivisions ​ — ​ 539,527 ​ — ​ 539,527 Corporate and other bonds (1) ​ — ​ 131,350 ​ — ​ 131,350 Mortgage-backed securities ​ — ​ 1,330,542 ​ — ​ 1,330,542 Other securities ​ — ​ 3,099 ​ — ​ 3,099 Loans held for sale ​ — ​ 55,067 ​ — ​ 55,067 Derivatives: ​ ​ ​ ​ Interest rate swap ​ — ​ 194,707 ​ — ​ 194,707 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ LIABILITIES ​ ​ ​ ​ Derivatives: ​ ​ ​ ​ Interest rate swap ​ $ — ​ $ 194,707 ​ $ — ​ $ 194,707 Fair value hedges ​ — ​ 14,530 ​ — ​ 14,530 (1) Other bonds include asset-backed securities. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurements at December 31, 2019 using ​ ​ ​ Significant ​ ​ ​ ​ ​ ​ Quoted Prices in ​ Other ​ Significant ​ ​ ​ ​ ​ Active Markets for ​ Observable ​ Unobservable ​ ​ ​ ​ ​ Identical Assets ​ Inputs ​ Inputs ​ ​ ​ ​ ​ Level 1 ​ Level 2 ​ Level 3 ​ Balance ASSETS ​ ​ ​ ​ ​ AFS securities: ​ ​ ​ ​ ​ U.S. government and agency securities ​ $ — ​ $ 21,320 ​ $ — ​ $ 21,320 Obligations of states and political subdivisions ​ ​ — ​ ​ 447,091 ​ ​ — ​ ​ 447,091 Corporate and other bonds (1) ​ — ​ 135,959 ​ — ​ 135,959 Mortgage-backed securities ​ — ​ 1,337,996 ​ — ​ 1,337,996 Other securities ​ — ​ 3,079 ​ — ​ 3,079 Loans held for sale ​ ​ — ​ ​ 55,405 ​ ​ — ​ ​ 55,405 Derivatives: ​ ​ ​ ​ Interest rate swap ​ — ​ 54,345 ​ — ​ 54,345 Fair value hedges ​ — ​ 182 ​ — ​ 182 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ LIABILITIES ​ ​ ​ ​ Derivatives: ​ ​ ​ ​ Interest rate swap ​ $ — ​ $ 54,345 ​ $ — ​ $ 54,345 Cash flow hedges ​ — ​ 1,147 ​ — ​ 1,147 Fair value hedges ​ — ​ 6,256 ​ — ​ 6,256 (1) Other bonds include asset-backed securities. ​ Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis Certain assets are measured at fair value on a nonrecurring basis in accordance with U.S. GAAP. Adjustments to the fair value of these assets usually result from the application of lower-of-cost-or-market accounting or write-downs of individual assets after they are evaluated for impairment. The primary assets accounted for at fair value on a nonrecurring basis are related to foreclosed properties, former bank premises, and collateral-dependent loans that are individually assessed. When the asset is secured by real estate, the Company measures the fair value utilizing an income or market valuation approach based on an appraisal conducted by an independent, licensed appraiser using observable market data. Management may discount the value from the appraisal in determining the fair value if, based on its understanding of the market conditions, the collateral had been impaired below the appraised value (Level 3). The assets for which a nonrecurring fair value measurement was recorded during the period ended June 30, 2020 and December 31, 2019 was $6.4 million and $11.9 million, respectively. The nonrecurring valuation adjustments for these assets did not have a material impact on the Company’s consolidated financial statements. Fair Value of Financial Instruments ASC 825, Financial Instruments, requires disclosure about fair value of financial instruments for interim periods and excludes certain financial instruments and all non-financial instruments from its disclosure requirements. Accordingly, the aggregate fair value amounts presented may not necessarily represent the underlying fair value of the Company. 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 June 30, 2020 and December 31, 2019 . The Company’s level 3 securities are a result of the Access acquisition and are comprised of asset-backed securities and municipal bonds. Valuations of the asset-backed securities are provided by a third party vendor specializing in the SBA markets, and are based on underlying loan pool information, market data, and recent trading activity for similar securities. Valuations of the municipal bonds are provided by a third party vendor that specializes in hard-to-value securities, and are based on a discounted cash flow model and considerations for the complexity of the instrument, likelihood it will be called and credit ratings. The Company reviews the valuation of both security types for reasonableness in the context of market conditions and to similar bonds in the Company’s portfolio. Any material differences between valuation sources are researched by further analyzing the various inputs that are utilized by each pricing source. No material differences were identified during the validation as of June 30, 2020 . Loans The fair value of loans was estimated using an exit price, representing the amount that would be expected to be received if the Company sold the loans. The fair value of performing loans was estimated through use of discounted cash flows. Credit loss assumptions were based on market PD/LGD for loan cohorts. The discount rate was based primarily on recent market origination rates. Fair value of loans individually assessed for impairment and their respective levels within the fair value hierarchy are described in the previous section related to fair value measurements of assets that are measured on a nonrecurring basis. ​ Bank owned life insurance The carrying value of BOLI approximates fair value. The Company records these policies at their cash surrender value, which is estimated using information provided by insurance carriers. Deposits The fair value of demand deposits, savings accounts, and certain money market deposits is the amount payable on demand at the reporting date. The fair value of certificates of deposits were valued using a discounted cash flow calculation that includes a market rate analysis of the current rates offered by market participants for certificates of deposits that mature in the same period. Accrued Interest The carrying amounts of accrued interest approximate fair value. ​ The carrying values and estimated fair values of the Company’s financial instruments at June 30, 2020 and December 31, 2019 are as follows (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurements at June 30, 2020 using ​ ​ ​ Quoted Prices Significant ​ ​ ​ ​ ​ ​ ​ ​ ​ in Active ​ Other ​ Significant ​ ​ ​ ​ ​ ​ ​ ​ Markets for ​ Observable ​ Unobservable ​ Total Fair ​ ​ ​ ​ ​ Identical Assets ​ Inputs ​ Inputs ​ Value ​ ​ Carrying ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Value ​ Level 1 ​ Level 2 ​ Level 3 ​ Balance ASSETS ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Cash and cash equivalents ​ $ 842,020 ​ $ 842,020 ​ $ — ​ $ — ​ $ 842,020 AFS securities ​ 2,019,164 ​ — ​ 2,019,164 ​ — ​ 2,019,164 HTM securities ​ 547,561 ​ — ​ 600,146 ​ 13,283 ​ 613,429 Restricted stock ​ 105,832 ​ — ​ 105,832 ​ — ​ 105,832 Loans held for sale ​ 55,067 ​ — ​ 55,067 ​ — ​ 55,067 Net loans ​ 14,138,669 ​ — ​ — ​ 13,970,248 ​ 13,970,248 Derivatives: ​ ​ ​ ​ ​ Interest rate swap ​ 194,707 ​ — ​ 194,707 ​ — ​ 194,707 Accrued interest receivable ​ 62,330 ​ — ​ 62,330 ​ — ​ 62,330 BOLI ​ 327,075 ​ — ​ 327,075 ​ — ​ 327,075 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ LIABILITIES ​ ​ ​ ​ ​ Deposits ​ $ 15,605,139 ​ $ — ​ $ 15,653,360 ​ $ — ​ $ 15,653,360 Borrowings ​ 1,125,030 ​ — ​ 1,093,558 ​ — ​ 1,093,558 Accrued interest payable ​ 4,495 ​ — ​ 4,495 ​ — ​ 4,495 Derivatives: ​ ​ ​ ​ ​ Interest rate swap ​ 194,707 ​ — ​ 194,707 ​ — ​ 194,707 Fair value hedges ​ 14,530 ​ — ​ 14,530 ​ — ​ 14,530 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurements at December 31, 2019 using ​ ​ ​ ​ ​ Quoted Prices ​ Significant ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ in Active ​ Other ​ Significant ​ ​ ​ ​ ​ ​ ​ ​ Markets for ​ Observable ​ Unobservable ​ Total Fair ​ ​ ​ ​ ​ Identical Assets ​ Inputs ​ Inputs ​ Value ​ ​ Carrying ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Value ​ Level 1 ​ Level 2 ​ Level 3 ​ Balance ASSETS ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Cash and cash equivalents ​ $ 436,032 ​ $ 436,032 ​ $ — ​ $ — ​ $ 436,032 AFS securities ​ 1,945,445 ​ — ​ 1,945,445 ​ — ​ 1,945,445 HTM securities ​ 555,144 ​ — ​ 585,820 ​ 17,683 ​ 603,503 Restricted stock ​ 130,848 ​ — ​ 130,848 ​ — ​ 130,848 Loans held for sale ​ ​ 55,405 ​ ​ — ​ 55,405 ​ — ​ ​ 55,405 Net loans ​ 12,568,642 ​ — ​ — ​ 12,449,505 ​ 12,449,505 Derivatives: ​ ​ ​ ​ ​ Interest rate swap ​ 54,345 ​ — ​ 54,345 ​ — ​ 54,345 Fair value hedges ​ 182 ​ — ​ 182 ​ — ​ 182 Accrued interest receivable ​ 52,721 ​ — ​ 52,721 ​ — ​ 52,721 BOLI ​ 322,917 ​ — ​ 322,917 ​ — ​ 322,917 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ LIABILITIES ​ ​ ​ ​ ​ Deposits ​ $ 13,304,981 ​ $ — ​ $ 13,349,943 ​ $ — ​ $ 13,349,943 Borrowings ​ 1,513,748 ​ — ​ 1,479,606 ​ — ​ 1,479,606 Accrued interest payable ​ 6,108 ​ — ​ 6,108 ​ — ​ 6,108 Derivatives: ​ ​ ​ ​ ​ Interest rate swap ​ 54,345 ​ — ​ 54,345 ​ — ​ 54,345 Cash flow hedges ​ 1,147 ​ — ​ 1,147 ​ — ​ 1,147 Fair value hedges ​ 6,256 ​ — ​ 6,256 ​ — ​ 6,256 ​ The Company assumes interest rate risk (the risk that general interest rate levels will change) as a result of its normal operations. As a result, the fair values of the Company’s financial instruments will change when interest rate levels change and that change may be either favorable or unfavorable to the Company. Management attempts to match maturities of assets and liabilities to the extent believed necessary to minimize interest rate risk. Borrowers with fixed rate obligations, however, are less likely to prepay in a rising rate environment and more likely to prepay in a falling rate environment. Conversely, depositors who are receiving fixed rates are more likely to withdraw funds before maturity in a rising rate environment and less likely to do so in a falling rate environment. Management monitors rates and maturities of assets and liabilities and attempts to minimize interest rate risk by adjusting terms of new loans and deposits and by investing in securities with terms that mitigate the Company’s overall interest rate risk. ​

REVENUE

REVENUE	6 Months Ended
	Jun. 30, 2020
Revenue from Contract with Customer [Abstract]
REVENUE	12. 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, 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 three and six months ended June 30, 2020 and 2019, consisted of the following (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended Six Months Ended ​ ​ June 30, ​ June 30, June 30, ​ June 30, ​ ​ 2020 ​ 2019 2020 ​ 2019 Noninterest income: ​ ​ ​ ​ ​ Deposit Service Charges (1) ​ ​ ​ ​ ​ Overdraft fees ​ $ 3,245 ​ $ 6,045 ​ $ 9,010 ​ $ 11,827 Maintenance fees & other ​ 1,685 ​ 1,454 ​ 3,498 ​ 2,829 Other service charges, commissions, and fees (1) ​ 1,354 ​ 1,702 ​ 2,978 ​ 3,367 Interchange fees (1) ​ 1,697 ​ 5,612 ​ 3,321 ​ 10,656 Fiduciary and asset management fees (1) ​ ​ ​ ​ ​ ​ ​ ​ Trust asset management fees ​ 2,470 ​ 1,976 ​ 5,298 ​ 3,315 Registered advisor management fees ​ 2,091 ​ 2,825 ​ 4,178 ​ 5,701 Brokerage management fees ​ 954 ​ 897 ​ 2,023 ​ 1,736 Mortgage banking income ​ 5,826 ​ 2,785 ​ 7,847 ​ 4,240 Gains (losses) on securities transactions ​ 10,339 ​ 51 ​ 12,275 ​ 202 Bank owned life insurance income ​ 2,027 ​ 2,075 ​ 4,076 ​ 4,129 Loan-related interest rate swap fees ​ 5,484 ​ 3,716 ​ 9,432 ​ 5,176 Other operating income (2) ​ (1,240) ​ 1,440 ​ 902 ​ 2,337 Total noninterest income (3) ​ $ 35,932 ​ $ 30,578 ​ $ 64,838 ​ $ 55,515 (1) Income within scope of Topic 606. (2) Includes income within the scope of Topic 606 of $645,000 and $1.1 million for the three months ended June 30, 2020 and 2019, respectively, and $1.2 million and $1.9 million for the six months ended June 30, 2020 and 2019, respectively. The remaining balance is outside the scope of Topic 606. (3) Noninterest income for the discontinued mortgage segment is reported in Note 14 "Segment Reporting & Discontinued Operations." ​ ​

EARNINGS PER SHARE

EARNINGS PER SHARE	6 Months Ended
	Jun. 30, 2020
Earnings Per Share [Abstract]
EARNINGS PER SHARE	13. EARNINGS PER SHARE Basic EPS is computed by dividing net income to common shareholders, after deducting dividends on preferred stock by the weighted average number of common shares outstanding during the period. Diluted EPS is computed using the weighted average number of common shares outstanding during the period, including the effect of dilutive potential common shares outstanding attributable to stock awards. ​ The following table presents EPS from continuing operations, discontinued operations and total net income available to common shareholders for the three and six months ended June 30, 2020 and 2019 (dollars in thousands except per share data): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ Six Months Ended ​ ​ June 30, ​ June 30, ​ ​ 2020 ​ 2019 ​ 2020 ​ 2019 Net Income: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Income from continuing operations ​ $ 30,709 ​ $ 48,908 ​ $ 37,798 ​ $ 84,623 Income (loss) from discontinued operations ​ — ​ (85) ​ — ​ (170) Net income available to common shareholders ​ $ 30,709 ​ $ 48,823 ​ $ 37,798 ​ $ 84,453 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted average shares outstanding, basic ​ 78,712 ​ 82,062 ​ 79,001 ​ 79,283 Dilutive effect of stock awards and warrants ​ 11 ​ 63 ​ 19 ​ 62 Weighted average shares outstanding, diluted ​ 78,723 ​ 82,125 ​ 79,020 ​ 79,345 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Basic EPS: ​ ​ ​ ​ EPS from continuing operations ​ $ 0.39 ​ $ 0.59 ​ $ 0.48 ​ $ 1.06 EPS from discontinued operations ​ — ​ — ​ — ​ — EPS available to common shareholders ​ $ 0.39 ​ $ 0.59 ​ $ 0.48 ​ $ 1.06 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Diluted EPS: ​ ​ ​ ​ EPS from continuing operations ​ $ 0.39 ​ $ 0.59 ​ $ 0.48 ​ $ 1.06 EPS from discontinued operations ​ — ​ — ​ — ​ — EPS available to common shareholders ​ $ 0.39 ​ $ 0.59 ​ $ 0.48 ​ $ 1.06 ​

SEGMENT REPORTING & DISCONTINUE

SEGMENT REPORTING & DISCONTINUED OPERATIONS	6 Months Ended
	Jun. 30, 2020
Segment Reporting [Abstract]
SEGMENT REPORTING & DISCONTINUED OPERATIONS	14. 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 that arrangement, the Bank began the process of winding down the operations of UMG, the Company’s reportable mortgage segment. Effective at the close of business June 1, 2018, UMG was no longer originating mortgages in its name. The decision to wind down the operations of UMG was based on a number of strategic priorities and other factors, including the additional investment in the business required to achieve the necessary scale to be competitive. As a result of this decision, the community bank segment is the only remaining reportable segment and does not require separate reporting disclosures. On May 30, 2019, the Bank notified TFSB that the Bank was terminating its primary agreement with TFSB and will no longer allow TFSB to offer residential mortgages from Bank locations. UMG operations remain discontinued, although the Company continues to offer residential mortgages through a division of the Bank. ​ As of and for the three and six months ended June 30, 2020, the assets and liabilities, as well as the operating results, of the discontinued mortgage segment were not considered material. As of December 31, 2019, the Company’s Consolidated Balance Sheets included assets and liabilities from discontinued operations of $668,000 and $640,000 , respectively. Management believes there are no material on-going obligations with respect to UMG’s business that have not been recorded in the Company’s consolidated financial statements. The following table presents summarized operating results of the discontinued mortgage segment for the three and six months ended June 30, 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ Six Months Ended ​ June 30, 2019 June 30, 2019 Net interest income $ — ​ $ — Provision for credit losses ​ — ​ ​ — Net interest income after provision for credit losses ​ — ​ ​ — Noninterest income ​ — ​ ​ 1 Noninterest expenses ​ 114 ​ ​ 230 Income before income taxes ​ (114) ​ ​ (229) Income tax expense (benefit) ​ (29) ​ ​ (59) Net income (loss) on discontinued operations $ (85) ​ $ (170) ​

SUBSEQUENT EVENTS

SUBSEQUENT EVENTS	6 Months Ended
	Jun. 30, 2020
Subsequent Events [Abstract]
SUBSEQUENT EVENTS	15. SUBSEQUENT EVENTS ​ On July 24, 2020 , the Company’s Board of Directors declared a quarterly dividend of $0.25 per share of common stock. The common stock dividend amount is the same as that paid in the prior quarter and the third quarter of 2019 . The common stock dividend is payable on August 21, 2020 to common shareholders of record as of August 7, 2020 . ​ The Board also declared a quarterly dividend on the outstanding shares of its Series A preferred stock. The Series A preferred stock is represented by depositary shares, each representing a 1/400 th ownership interest in a share of Series A preferred stock . The dividend of $156.60 per share (equivalent to $0.39 per outstanding depositary share) is payable on September 1, 2020 to preferred shareholders of record as of August 14, 2020 . ​

ACCOUNTING POLICIES (Policies)

ACCOUNTING POLICIES (Policies)	6 Months Ended
	Jun. 30, 2020
The Company	The Company Headquartered in Richmond, Virginia, Atlantic Union Bankshares Corporation (Nasdaq: AUB) is the holding company for Atlantic Union Bank. Atlantic Union Bank has 149 branches and approximately 170 ATMs located throughout Virginia, and in portions of Maryland and North Carolina. Middleburg Financial is a brand name used by Atlantic Union Bank and certain affiliates when providing trust, wealth management, private banking, and investment advisory products and services. Certain non-bank affiliates of Atlantic Union Bank include: Old Dominion Capital Management, Inc., and its subsidiary, Outfitter Advisors, Ltd., Dixon, Hubard, Feinour, & Brown, Inc., and Middleburg Investment Services, LLC, which provide investment advisory and/or brokerage services; and Union Insurance Group, LLC, which offers various lines of insurance products. ​ The unaudited consolidated financial statements have been prepared in accordance with U.S. GAAP for interim financial information and follow general practice within the banking industry. Accordingly, the unaudited consolidated financial statements do not include all the information and footnotes required by U.S. GAAP for complete financial statements; however, in the opinion of management, all adjustments necessary for a fair presentation of the results of the interim periods presented have been made. The results of operations for the interim periods are not necessarily indicative of the results that may be expected for the full year or any other period. ​ These unaudited consolidated financial statements should be read in conjunction with the Company’s audited consolidated financial statements and notes thereto included in the Company’s 2019 Form 10-K. Certain prior period amounts have been reclassified to conform to current period presentation.
Impact of COVID-19	Impact of COVID-19 On March 13, 2020, the United States President declared a national emergency in the face of a growing public health and economic crisis due to the COVID-19 global pandemic. Within a few days of the declaration of a national emergency, governors of states comprising the Company’s geographic footprint issued states of emergency in response to the novel COVID-19. As a result of this pandemic, actions were taken around the world to help mitigate the spread of COVID 19, which have impacted the economies and financial markets of many countries, including the geographical area in which the Company operates. On March 27, 2020, the CARES Act was signed into law. The CARES Act is designated to provide financial relief to the American people and American businesses in response to the economic fallout from COVID-19. On March 22, 2020, the five federal bank regulatory agencies and the Conference of State Bank Supervisors issued joint guidance (subsequently revised on April 7, 2020) with respect to loan modifications for borrowers affected by COVID-19. The CARES Act, as well as the March 22 Joint Guidance, provide enhanced guidelines and accounting for COVID-19 related modifications. ​ The federal banking regulators have confirmed with FASB that short-term loan modifications made on a good faith basis in response to COVID-19 to borrowers who were current (i.e., less than 30 days past due on contractual payments) prior to any loan modification are not TDRs. In addition, Section 4013 of the CARES Act provides banks, savings associations, and credit unions with the ability to make loan modifications related to COVID-19 without categorizing the loan as a TDR or conducting the analysis to make the determination, which is intended to streamline the loan modification process. Any such suspension is effective for the term of the loan modification; however, the suspension is only permitted for loan modifications made during the effective period of Section 4013 and only for those loans that were not more than thirty days past due as of December 31, 2019. The Company has made $1.8 billion of loan modifications pursuant to the March 22 Joint Guidance or Section 4013 of the CARES Act and as of June 30, 2020 approximately $1.6 billion remain under their modified terms. ​ During the second quarter of 2020, the Company continued to participate in the SBA PPP under the CARES Act. The Company processed over 11,000 loans, which totaled $1.7 billion with a recorded investment of $1.6 billion as of June 30, 2020, through the SBA PPP. The loans carry a 1% interest rate and the Company recorded net PPP loan origination fees of approximately $50.2 million, which are being amortized over a 24-month period.
Adoption of New Accounting Standards	Adoption of New Accounting Standards On January 1, 2020, the Company adopted ASC 326. This ASU updates the existing guidance to provide financial statement users with more decision-useful information about the expected credit losses on financial instruments and other commitments to extend credit held by a reporting entity at each reporting date. This ASU replaces the incurred loss impairment methodology in current GAAP with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. The measurement of expected credit losses under the CECL methodology is applicable to financial assets measured at amortized cost, including loan receivables and held-to- maturity debt securities. It also applies to unfunded credit exposures not accounted for as insurance (loan commitments, standby letters of credit, financial guarantees, and other similar instruments). The Company established a cross-functional governance structure to oversee the Company’s implementation of the CECL methodology, which included evaluating key assumptions used and assessing the internal controls over financial reporting related to the adoption of ASC 326. The Company adopted ASC 326 using the modified retrospective method for all financial assets measured at amortized cost and unfunded credit exposures. Results for reporting periods beginning after January 1, 2020 are presented under ASC 326, while prior period amounts continue to be reported in accordance with previously applicable GAAP. As a result of adopting ASC 326, the Company recorded a net decrease to retained earnings of $39.1 million. ASC 326 also replaced the Company’s current accounting for PCI loans. With the adoption of ASC 326, previously classified PCI loans are now classified as PCD loans. In accordance with ASC 326, the Company did not re-assess whether individual modifications were needed to individual acquired financial assets accounted for in the pools with troubled debt restructurings as of the date of adoption. The Company adopted ASC 326 using the prospective transition approach for financial assets with PCD that were previously identified as PCI and accounted for under ASC 310-30. On January 1, 2020, the amortized cost basis of the PCD assets were adjusted to reflect the addition of $2.4 million to the ACL. The remaining noncredit discount (based on the adjusted amortized cost basis) will be accreted into interest income at the effective interest rate as of January 1, The Company adopted ASC 326 using the prospective transition approach for debt securities. The effective interest rate on these debt securities was not changed. Upon adoption of ASC 326, the Company did not have any securities included in its portfolio where OTTI had previously been The following table illustrates the impact of ASC ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ January 1, ​ January 1, ​ ​ 2019 ​ 2020 ​ 2020 ​ ​ As Previously Reported (Incurred Loss) ​ Impact of CECL Adoption ​ As Reported Under CECL Assets: ​ ​ ​ ​ ​ ​ Loans ​ ​ ​ ​ ​ ​ Commercial $ 30,941 $ 6,184 $ 37,125 Consumer ​ 11,353 ​ 41,300 ​ 52,653 Allowance for loan and lease losses ​ 42,294 ​ 47,484 ​ 89,778 Liabilities: ​ ​ ​ ​ ​ ​ Allowance for credit losses on unfunded credit exposure ​ 900 ​ 4,160 ​ 5,060 Total Allowance for credit losses $ 43,194 $ 51,644 $ 94,838
Allowance for Loan and Lease Losses	Allowance for Loan and Lease Losses The provision for loan losses charged to operations is an amount sufficient to bring the allowance to an estimated balance that management considers adequate to absorb expected losses in the Company’s loan portfolio. The ALLL is a valuation account that is deducted from the loans' amortized cost basis to present the net amount expected to be collected on the loans. Amortized cost is the principal balance outstanding, net of any purchase premiums and discounts and net of any deferred loan fees and costs. The ALLL represents management’s estimate of credit losses over the remaining life of the loan portfolio. Loans are charged off against the ALLL when management believes the loan balance is no longer collectible. Subsequent recoveries of previously charged off amounts are recorded as increases to the Management’s determination of the adequacy of the ALLL is based on an evaluation of the composition of the loan portfolio, the value and adequacy of collateral, current economic conditions, historical loan loss experience, reasonable and supportable forecasts, and other risk factors. The ALLL is estimated by pooling loans by call code and credit risk indicator and applying a loan-level PD/LGD method for all loans with the exception of its auto and third party consumer lending portfolios. For auto and third party consumer portfolios, the Company has elected to pool those loans based on similar risk characteristics to determine the ALLL using vintage and loss rate methods. The Company utilizes a forecast period of two years and then reverts to the mean of historical loss factors on a straight-line basis over the following two-year period. The Company considers economic forecasts and recession probabilities from highly recognized third-parties to inform the model for loss estimation. The Company’s ALLL estimate is particularly impacted by the unemployment rate forecast in its geographic footprint. In the current quarter forecast, the unemployment rate in the Company’s geographic footprint is projected to remain significantly elevated through the forecast period. Management also considers qualitative factors when estimating loan losses to take into account model limitations. For the current quarter, the largest qualitative additions were related to industries that are particularly impacted by the COVID pandemic, and were partially offset by qualitative reductions meant to account for enhanced unemployment benefits, bank deferrals, the PPP loan program and other factors. The Company’s Allowance Committee approves the key methodologies and assumptions, as well as the final ALLL on a quarterly basis. While management uses available information to estimate expected losses on loans, future changes in the ALLL may be necessary based on changes in portfolio composition, portfolio credit quality, and/or economic conditions. Loans that do not share risk characteristics are evaluated on an individual basis. The individual reserve component relates to loans that have shown substantial credit deterioration as measured by risk rating and/or delinquency status. In addition, the Company has elected the practical expedient that would include loans for individual assessment consideration if the repayment of the loan is expected substantially through the operation or sale of collateral because the borrower is experiencing financial difficulty. Where the source of repayment is the sale of collateral, the ALLL is based on the fair value of the underlying collateral, less selling costs, compared to the amortized cost basis of the loan. If the ALLL is based on the operation of the collateral, the reserve is calculated based on the fair value of the collateral calculated as the present value of expected cash flows from the operation of the collateral, compared to the amortized cost basis. If the Company determines that the value of a collateral dependent loan is less than the recorded investment in the loan, the Company charges off the deficiency if it is determined that such amount is deemed to be a confirmed loss. Typically, a loss is confirmed when the Company is moving towards foreclosure (or final disposition). In situations where, for economic or legal reasons related to a borrower’s financial condition, the Company grants a concession in the loan structure to the borrower that it would not otherwise consider, the related loan is classified as a TDR. With the exception of loans with interest rate concessions, the ALLL on a TDR is measured using the same method as all other loans held for investment. For loans with interest rate concessions, the Company uses a discounted cash flow approach using the original interest rate.
Accrued Interest Receivable	Accrued Interest Receivable The Company has elected to exclude accrued interest from the amortized cost basis in its determination of the ACL reserve for both loans and HTM securities, as well as elected the policy to write-off accrued interest receivable directly through the reversal of interest income. Accrued interest receivable totaled $45.7 million on loans held for investment and, $6.8 million on HTM securities at June 30, 2020 and is included in “Other Assets” on the Company’s consolidated balance sheet.
Acquired Loans	Acquired Loans The Company has purchased loans, some of which have experienced more than insignificant credit deterioration since origination. Acquired loans are recorded at their fair value at acquisition date without carryover of the acquiree’s previously established ALLL, as credit discounts are included in the determination of fair value. The fair value of the loans is determined using market participant assumptions in estimating the amount and timing of both principal and interest cash flows expected to be collected on the loans and then applying a market-based discount rate to those cash flows. During evaluation upon acquisition, acquired loans are also classified as either PCD or acquired performing. The purchase discount on acquired performing loans is accounted for under ASC 310-20, Receivables – Nonrefundable Fees and Other Costs PCD loans reflect loans that have experienced more-than-insignificant credit deterioration since origination. These PCD loans are accounted for under ASC 326 . PCD loans are recorded at the amount paid. An ALLL is determined using the same methodology as other loans held for investment. For PCD loans not individually assessed, the initial ALLL is determined on a collective basis and is allocated to individual loans. The sum of the loan's purchase price and ALLL becomes its initial amortized cost basis. The difference between the initial amortized cost basis and the par value of the loan is a noncredit discount or premium, which is amortized into interest income over the life of the loan. The
Cash and Cash Equivalents	Cash and Cash Equivalents For purposes of reporting cash flows, the Company defines cash and cash equivalents as cash, cash due from banks, interest-bearing deposits in other banks, money market investments, other interest-bearing deposits, and federal funds sold. ​ Restricted cash is disclosed in Note 8 “Commitments and Contingencies” and is comprised of cash maintained at various correspondent banks as collateral for the Company’s derivative portfolio and is included in interest-bearing deposits in other banks in the Company’s Consolidated Balance Sheets. In addition, the Company is required to maintain reserve balances with the Federal Reserve Bank based on the type and amount of deposits; however, on March 15, 2020 the Federal Reserve Board announced that reserve requirement ratios would be reduced to zero percent effective March 26, 2020 due to economic conditions, which eliminated the reserve requirement for all depository institutions.
Investment Securities	Investment Securities Interest income includes amortization of purchase premium or discount. Premiums and discounts on securities are generally amortized on the level-yield method without anticipating prepayments, except for mortgage-backed securities The Company regularly evaluates all securities whose values have declined below amortized cost to assess whether the decline in fair value is the result of credit impairment. For AFS securities, the Company evaluates the fair value and credit quality of its AFS securities on at least a quarterly basis. In the event the fair value of a security falls below its amortized cost basis, the security will be evaluated to determine whether the decline in value was caused by changes in market interest rates or security credit quality. The primary indicators of credit quality for the Company’s AFS portfolio are security type and credit rating, which are influenced by a number of security-specific factors that may include obligor cash flow, geography, seniority, and others. There is currently no ACL held against the Company’s AFS securities portfolio at June 30, 2020. See Note 3 “Securities,” for additional information on the Company’s ACL analysis. If unrealized losses are related to credit quality, the Company estimates the credit related loss by evaluating the present value of cash flows expected to be collected from the security with the amortized cost basis of the security. If the present value of cash flows expected to be collected is less than the amortized cost basis of the security and a credit loss exists, an ACL shall be recorded for the credit loss, limited by the amount that the fair value is less than amortized cost basis. Non-credit related declines in fair value are recognized in other comprehensive income, net of applicable taxes. Changes in the ACL are recorded as provision for (or reversal of) credit loss expense. Charge-offs are recorded against the ACL when management believes the AFS security is no longer collectible. Currently, the Company does not have an ACL on its AFS debt securities portfolio. A debt security is placed on nonaccrual status at the time any principal or interest payments become 90 days delinquent. The Company evaluates the credit risk of its HTM securities on at least a quarterly basis. Management estimates expected credit losses on held-to-maturity debt securities based on an individual basis based on the PD/LGD methodology primarily using security-level credit ratings. Management recorded an immaterial ACL on HTM securities as a result of the adoption of ASC 326, and no additional changes were needed at June 30, 2020.
Unfunded Commitments
Allowance for Credit Losses	Reserve for Unfunded Commitments The Company estimates expected credit losses over the contractual period in which the Company is exposed to credit risk via a contractual obligation to extend credit, unless that obligation is unconditionally cancellable by the Company. The reserve for unfunded commitments is adjusted as a provision for credit loss expense and is measured using the same measurement objectives as the ALLL. The estimate includes consideration of the likelihood that funding will occur and an estimate of expected credit losses on commitments expected to be funded and is included in “Other Liabilities” within the Company’s Consolidated Balance Sheets.

ACCOUNTING POLICIES (Tables)

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

SECURITIES (Tables)

SECURITIES (Tables)	6 Months Ended
	Jun. 30, 2020
Amortized Cost of HTM Securities by Security Type and Credit Rating	The following table presents the amortized cost of HTM securities as of June 30, 2020 by security type and credit rating (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended June 30, 2020 ​ U.S. Government and Agency Obligations of states and political Mortgage-backed ​ Total HTM ​ ​ securities ​ subdivisions ​ securities ​ securities Credit Rating: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ AAA/AA/A ​ $ — ​ $ 534,577 ​ $ — ​ $ 534,577 Not Rated - Agency (1) ​ ​ 2,781 ​ ​ — ​ ​ 5,593 ​ ​ 8,374 Not Rated - Non-Agency ​ ​ — ​ 4,610 ​ ​ — ​ ​ 4,610 Total ​ $ 2,781 ​ $ 539,187 ​ $ 5,593 ​ $ 547,561 (1) Generally considered not to have credit risk given the government guarantees associated with these agencies
Gross Realized Gain and Losses on the Sale of Securities	The following table presents the gross realized gains and losses on and the proceeds from the sale of securities during the three and six months ended June 30, 2020 and 2019 (dollars in thousands). ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended Six Months Ended ​ ​ June 30, 2020 ​ June 30, 2020 Realized gains (losses): ​ ​ Gross realized gains ​ $ 10,339 ​ $ 12,503 Gross realized losses ​ — ​ (228) Net realized gains ​ $ 10,339 ​ $ 12,275 ​ ​ ​ ​ ​ ​ ​ Proceeds from sales of securities ​ $ 107,570 ​ $ 228,271 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended Six Months Ended ​ ​ June 30, 2019 ​ June 30, 2019 Realized gains (losses): ​ ​ Gross realized gains ​ $ 844 ​ $ 2,057 Gross realized losses ​ (793) ​ (1,855) Net realized gains ​ $ 51 ​ $ 202 ​ ​ ​ ​ ​ ​ ​ Proceeds from sales of securities ​ $ 179,701 ​ $ 387,950
Available-for-sale Securities
Amortized Cost, Gross Unrealized Gains and Losses, and Estimated Fair Values of Investment Securities	The amortized cost, gross unrealized gains and losses, and estimated fair values of AFS securities as of June 30, 2020 are summarized as follows (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Amortized ​ Gross Unrealized ​ Estimated ​ Cost Gains (Losses) Fair Value June 30, 2020 ​ ​ ​ ​ ​ U.S. government and agency securities ​ $ 14,198 ​ $ 505 ​ $ (57) ​ $ 14,646 Obligations of states and political subdivisions ​ 504,866 ​ 34,968 ​ (307) ​ 539,527 Corporate and other bonds (1) ​ 132,489 ​ 1,122 ​ (2,261) ​ 131,350 Commercial mortgage-backed securities ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Agency ​ ​ 337,721 ​ 18,600 ​ (88) ​ ​ 356,233 Non-agency ​ ​ 20,253 ​ 62 ​ — ​ ​ 20,315 Total commercial mortgage-backed securities ​ ​ 357,974 ​ 18,662 ​ (88) ​ ​ 376,548 Residential mortgage-backed securities ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Agency ​ ​ 841,571 ​ 37,643 ​ (415) ​ ​ 878,799 Non-agency ​ ​ 75,790 ​ 494 ​ (1,089) ​ ​ 75,195 Total residential mortgage-backed securities ​ ​ 917,361 ​ 38,137 ​ (1,504) ​ ​ 953,994 Other securities ​ 3,099 ​ — ​ — ​ 3,099 Total AFS securities ​ $ 1,929,987 ​ $ 93,394 ​ $ (4,217) ​ $ 2,019,164 (1) Other bonds include asset-backed securities. The amortized cost, gross unrealized gains and losses, and estimated fair values of AFS securities as of December 31, 2019 are summarized as follows (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Amortized ​ Gross Unrealized ​ Estimated December 31, 2019 Cost Gains (Losses) Fair Value U.S. government and agency securities ​ $ 21,149 ​ $ 209 ​ $ (38) ​ $ 21,320 Obligations of states and political subdivisions ​ ​ 421,344 ​ ​ 25,776 ​ ​ (29) ​ ​ 447,091 Corporate and other bonds (1) ​ 134,342 ​ 1,991 ​ (374) ​ 135,959 Commercial mortgage-backed securities ​ ​ ​ ​ ​ ​ ​ ​ Agency ​ ​ 405,731 ​ ​ 8,786 ​ ​ (619) ​ ​ 413,898 Non-agency ​ ​ 11,173 ​ ​ — ​ ​ (24) ​ ​ 11,149 Total commercial mortgage-backed securities ​ ​ 416,904 ​ ​ 8,786 ​ ​ (643) ​ ​ 425,047 Residential mortgage-backed securities ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Agency ​ ​ 852,300 ​ ​ 16,680 ​ ​ (816) ​ ​ 868,164 Non-agency ​ ​ 44,309 ​ ​ 476 ​ ​ — ​ ​ 44,785 Total residential mortgage-backed securities ​ ​ 896,609 ​ ​ 17,156 ​ ​ (816) ​ ​ 912,949 Other securities ​ 3,079 ​ — ​ — ​ 3,079 Total AFS securities ​ $ 1,893,427 ​ $ 53,918 ​ $ (1,900) ​ $ 1,945,445 (1) Other bonds include asset-backed securities ​
Schedule of Gross Unrealized Losses and Fair Value of Investments	The following table shows the gross unrealized losses and fair value of the Company’s AFS securities with unrealized losses for which an allowance for credit losses has not been recorded at June 30, 2020 and that are not deemed to be other than temporarily impaired as of December 31, 2019. These are aggregated by investment category and length of time that the individual securities have been in a continuous unrealized loss position (dollars in thousands). ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Less than 12 months ​ More than 12 months ​ Total ​ Fair Unrealized Fair Unrealized Fair Unrealized ​ ​ Value ​ Losses ​ Value ​ Losses ​ Value ​ Losses June 30, 2020 ​ ​ ​ ​ ​ ​ U.S. government and agency securities ​ $ 3,771 ​ $ (28) ​ $ 2,444 ​ $ (29) ​ $ 6,215 ​ ​ (57) Obligations of states and political subdivisions ​ ​ 48,653 ​ ​ (307) ​ ​ — ​ ​ — ​ ​ 48,653 ​ $ (307) Corporate and other bonds (1) ​ 76,760 ​ (1,739) ​ 19,515 ​ (522) ​ 96,275 ​ (2,261) Commercial mortgage-backed securities ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Agency ​ ​ 11,086 ​ ​ (88) ​ ​ — ​ ​ — ​ ​ 11,086 ​ ​ (88) Non-agency ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total commercial mortgage-backed securities ​ ​ 11,086 ​ ​ (88) ​ ​ — ​ ​ — ​ ​ 11,086 ​ ​ (88) Residential mortgage-backed securities ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Agency ​ ​ 40,939 ​ ​ (390) ​ ​ 9,744 ​ ​ (25) ​ ​ 50,683 ​ ​ (415) Non-agency ​ ​ 45,642 ​ ​ (1,089) ​ ​ — ​ ​ — ​ ​ 45,642 ​ ​ (1,089) Total residential mortgage-backed securities ​ ​ 86,581 ​ ​ (1,479) ​ ​ 9,744 ​ ​ (25) ​ ​ 96,325 ​ ​ (1,504) Total AFS securities ​ $ 226,851 ​ $ (3,641) ​ $ 31,703 ​ $ (576) ​ $ 258,554 ​ $ (4,217) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019 ​ ​ ​ ​ ​ ​ U.S. government and agency securities ​ $ 7,638 ​ $ (38) ​ $ — ​ $ — ​ $ 7,638 ​ $ (38) Obligations of states and political subdivisions ​ ​ 4,526 ​ ​ (29) ​ ​ — ​ ​ — ​ ​ 4,526 ​ ​ (29) Corporate and other bonds (1) ​ 17,323 ​ (83) ​ 19,901 ​ (291) ​ 37,224 ​ (374) Commercial mortgage-backed securities ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Agency ​ ​ 43,552 ​ ​ (530) ​ ​ 14,966 ​ ​ (89) ​ ​ 58,518 ​ ​ (619) Non-agency ​ ​ 11,162 ​ ​ (24) ​ ​ — ​ ​ — ​ ​ 11,162 ​ ​ (24) Total commercial mortgage-backed securities ​ ​ 54,714 ​ ​ (554) ​ ​ 14,966 ​ ​ (89) ​ ​ 69,680 ​ ​ (643) Residential mortgage-backed securities ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Agency ​ ​ 114,147 ​ ​ (500) ​ ​ 40,168 ​ ​ (316) ​ ​ 154,315 ​ ​ (816) Non-agency ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total residential mortgage-backed securities ​ ​ 114,147 ​ ​ (500) ​ ​ 40,168 ​ ​ (316) ​ ​ 154,315 ​ ​ (816) Total AFS securities ​ $ 198,348 ​ $ (1,204) ​ $ 75,035 ​ $ (696) ​ $ 273,383 ​ $ (1,900) (1) Other bonds includes asset-backed securities.
Schedule of Amortized Cost and Estimated Fair Value of Securities	The following table presents the amortized cost and estimated fair value of AFS securities as of June 30, 2020 and December 31, 2019, by contractual maturity. 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 (dollars in thousands). ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 December 31, 2019 ​ Amortized Estimated Amortized Estimated ​ ​ Cost ​ Fair Value ​ Cost ​ Fair Value Due in one year or less ​ $ 27,404 ​ $ 27,621 ​ $ 35,177 ​ $ 35,329 Due after one year through five years ​ 148,289 ​ 155,504 ​ 164,605 ​ 166,873 Due after five years through ten years ​ 233,029 ​ 237,974 ​ 249,713 ​ 254,790 Due after ten years ​ 1,521,265 ​ 1,598,065 ​ 1,443,932 ​ 1,488,453 Total AFS securities ​ $ 1,929,987 ​ $ 2,019,164 ​ $ 1,893,427 ​ $ 1,945,445
Held-to-maturity Securities
Schedule of Amortized Cost and Estimated Fair Value of Securities	The following table presents the amortized cost and estimated fair value of HTM securities as of June 30, 2020 and December 31, 2019, by contractual maturity. 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 (dollars in thousands). ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 ​ December 31, 2019 ​ Carrying Estimated Carrying Estimated ​ ​ Value ​ Fair Value ​ Value ​ Fair Value Due in one year or less ​ $ 1,007 ​ $ 1,028 ​ $ 502 ​ $ 504 Due after one year through five years ​ 9,133 ​ 9,490 ​ 10,258 ​ 10,539 Due after five years through ten years ​ 1,754 ​ 1,777 ​ 1,768 ​ 1,800 Due after ten years ​ 535,667 ​ 601,134 ​ 542,616 ​ 590,660 Total HTM securities ​ $ 547,561 ​ $ 613,429 ​ $ 555,144 ​ $ 603,503
Schedule of Carrying Values, Gross Unrealized Gains and Losses and Estimated Fair Value of Securities	The carrying value, gross unrealized gains and losses, and estimated fair values of HTM securities as of June 30, 2020 are summarized as follows (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Carrying ​ Gross Unrealized ​ Estimated ​ Value Gains (Losses) ​ Fair Value June 30, 2020 ​ ​ ​ ​ ​ U.S. government and agency securities ​ $ 2,781 ​ $ — ​ $ (27) ​ $ 2,754 Obligations of states and political subdivisions ​ ​ 539,187 ​ ​ 65,944 ​ ​ — ​ ​ 605,131 Commercial mortgage-backed securities ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Agency ​ ​ 5,593 ​ ​ 1 ​ ​ (50) ​ ​ 5,544 Non-agency ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total commercial mortgage-backed securities ​ ​ 5,593 ​ ​ 1 ​ ​ (50) ​ ​ 5,544 Total held-to-maturity securities ​ $ 547,561 ​ $ 65,945 ​ $ (77) ​ $ 613,429 ​ The carrying value, gross unrealized gains and losses, and estimated fair values of HTM securities as of December 31, 2019 are summarized as follows (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Carrying ​ Gross Unrealized ​ Estimated ​ Value Gains (Losses) Fair Value December 31, 2019 ​ ​ ​ ​ U.S. government and agency securities ​ $ 2,813 ​ $ 26 ​ $ — ​ $ 2,839 Obligations of states and political subdivisions ​ ​ 545,148 ​ ​ 48,274 ​ ​ — ​ ​ 593,422 Commercial mortgage-backed securities ​ ​ ​ ​ ​ ​ ​ ​ ​ Agency ​ ​ 7,183 ​ ​ 59 ​ ​ — ​ ​ 7,242 Non-agency ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total commercial mortgage-backed securities ​ ​ 7,183 ​ ​ 59 ​ ​ — ​ ​ 7,242 Total held-to-maturity securities ​ $ 555,144 ​ $ 48,359 ​ $ — ​ $ 603,503

LOANS AND ALLOWANCE FOR LOAN _2

LOANS AND ALLOWANCE FOR LOAN LOSSES (Tables)	6 Months Ended
	Jun. 30, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Stated at Face Amount, Net of Unearned Income	The Company’s loans are stated at their face amount, net of deferred fees and costs, and consist of the following at June 30, 2020 and December 31, 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 December 31, 2019 Construction and Land Development ​ $ 1,247,939 ​ $ 1,250,924 Commercial Real Estate - Owner Occupied ​ 2,067,087 ​ 2,041,243 Commercial Real Estate - Non-Owner Occupied ​ 3,455,125 ​ 3,286,098 Multifamily Real Estate ​ 717,719 ​ 633,743 Commercial & Industrial (1) ​ 3,555,971 ​ 2,114,033 Residential 1-4 Family - Commercial ​ 715,384 ​ 724,337 Residential 1-4 Family - Consumer ​ 841,051 ​ 890,503 Residential 1-4 Family - Revolving ​ 627,765 ​ 659,504 Auto ​ 380,053 ​ 350,419 Consumer ​ 311,362 ​ 372,853 Other Commercial (1) ​ 389,190 ​ 287,279 Total loans held for investment, net of deferred fees and costs ​ ​ 14,308,646 ​ ​ 12,610,936 Allowance for loan and lease losses ​ ​ (169,977) ​ ​ (42,294) Total loans held for investment, net ​ $ 14,138,669 ​ $ 12,568,642 (1) Commercial & industrial and other commercial loans include approximately $1.6 billion and $20.3 million, respectively, in new loans from the PPP loan program at June 30, 2020.
Summary of Aging of the Loan Portfolio by Class	The following table shows the aging of the Company’s loan portfolio, by class, at June 30, 2020 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Greater than ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 30-59 Days ​ 60-89 Days ​ 90 Days and ​ ​ ​ ​ ​ ​ ​ ​ Current ​ Past Due ​ Past Due ​ still Accruing ​ Nonaccrual ​ Total Loans Construction and Land Development ​ $ 1,241,512 ​ $ 1,683 ​ $ 294 ​ $ 473 ​ $ 3,977 ​ $ 1,247,939 Commercial Real Estate - Owner Occupied ​ 2,048,203 ​ 1,679 ​ 430 ​ 7,851 ​ 8,924 ​ 2,067,087 Commercial Real Estate - Non-Owner Occupied ​ 3,451,071 ​ 930 ​ 369 ​ 878 ​ 1,877 ​ 3,455,125 Multifamily Real Estate ​ 717,320 ​ — ​ — ​ 366 ​ 33 ​ 717,719 Commercial & Industrial ​ 3,551,187 ​ 1,602 ​ 296 ​ 178 ​ 2,708 ​ 3,555,971 Residential 1-4 Family - Commercial ​ 706,437 ​ 480 ​ 2,105 ​ 578 ​ 5,784 ​ 715,384 Residential 1-4 Family - Consumer ​ 818,877 ​ 1,229 ​ 3,817 ​ 5,099 ​ 12,029 ​ 841,051 Residential 1-4 Family - Revolving ​ 619,172 ​ 1,924 ​ 1,048 ​ 1,995 ​ 3,626 ​ 627,765 Auto ​ 377,822 ​ 1,176 ​ 290 ​ 181 ​ 584 ​ 380,053 Consumer ​ 308,719 ​ 844 ​ 561 ​ 1,157 ​ 81 ​ 311,362 Other Commercial ​ ​ 388,234 ​ ​ 456 ​ ​ — ​ ​ 499 ​ ​ 1 ​ ​ 389,190 Total loans held for investment ​ $ 14,228,554 ​ $ 12,003 ​ $ 9,210 ​ $ 19,255 ​ $ 39,624 ​ $ 14,308,646 The following table shows the aging of the Company’s loan portfolio, by class, at December 31, 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Greater than ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 30-59 Days ​ 60-89 Days ​ 90 Days and ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Past Due ​ Past Due ​ still Accruing ​ PCI ​ Nonaccrual ​ Current ​ Total Loans Construction and Land Development ​ $ 4,563 ​ $ 482 ​ $ 189 ​ $ 10,944 ​ $ 3,703 ​ $ 1,231,043 ​ $ 1,250,924 Commercial Real Estate - Owner Occupied ​ 3,482 ​ 2,184 ​ 1,062 ​ 27,438 ​ 6,003 ​ 2,001,074 ​ 2,041,243 Commercial Real Estate - Non-Owner Occupied ​ 457 ​ — ​ 1,451 ​ 14,565 ​ 381 ​ 3,269,244 ​ 3,286,098 Multifamily Real Estate ​ 223 ​ — ​ 474 ​ 94 ​ — ​ 632,952 ​ 633,743 Commercial & Industrial ​ 8,698 ​ 1,598 ​ 449 ​ 1,579 ​ 1,735 ​ 2,099,974 ​ 2,114,033 Residential 1-4 Family - Commercial ​ 1,479 ​ 2,207 ​ 674 ​ 12,205 ​ 4,301 ​ 703,471 ​ 724,337 Residential 1-4 Family - Consumer ​ 16,244 ​ 3,072 ​ 4,515 ​ 14,713 ​ 9,292 ​ 842,667 ​ 890,503 Residential 1-4 Family - Revolving ​ 10,190 ​ 1,784 ​ 3,357 ​ 4,127 ​ 2,080 ​ 637,966 ​ 659,504 Auto ​ 2,525 ​ 236 ​ 272 ​ 4 ​ 563 ​ 346,819 ​ 350,419 Consumer ​ 2,128 ​ 1,233 ​ 953 ​ 668 ​ 77 ​ 367,794 ​ 372,853 Other Commercial ​ ​ 464 ​ ​ — ​ ​ — ​ ​ 344 ​ ​ 97 ​ ​ 286,374 ​ ​ 287,279 Total loans held for investment ​ $ 50,453 ​ $ 12,796 ​ $ 13,396 ​ $ 86,681 ​ $ 28,232 ​ $ 12,419,378 ​ $ 12,610,936
Summary of Loans on Nonaccrual Status	The following table shows the Company’s amortized cost basis of loans on nonaccrual status as of January 1, 2020 as well as amortized cost basis of loans on nonaccrual status and loans past due 90 days and still accruing as of June 30, 2020 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Nonaccrual ​ ​ ​ ​ ​ ​ ​ ​ January 1, 2020 ​ June 30, 2020 ​ Nonaccrual With No ALLL ​ 90 Days and still Accruing Construction and Land Development ​ $ 4,060 ​ $ 3,977 ​ $ 1,987 ​ $ 473 Commercial Real Estate - Owner Occupied ​ ​ 13,889 ​ ​ 8,924 ​ ​ 1,990 ​ ​ 7,851 Commercial Real Estate - Non-Owner Occupied ​ ​ 1,368 ​ ​ 1,877 ​ ​ — ​ ​ 878 Multifamily Real Estate ​ ​ — ​ ​ 33 ​ ​ — ​ ​ 366 Commercial & Industrial ​ ​ 3,037 ​ ​ 2,708 ​ ​ — ​ ​ 178 Residential 1-4 Family - Commercial ​ ​ 6,492 ​ ​ 5,784 ​ ​ 1,738 ​ ​ 578 Residential 1-4 Family - Consumer ​ ​ 13,117 ​ ​ 12,029 ​ ​ 1,069 ​ ​ 5,099 Residential 1-4 Family - Revolving ​ ​ 2,490 ​ ​ 3,626 ​ ​ 60 ​ ​ 1,995 Auto ​ ​ 565 ​ ​ 584 ​ ​ — ​ ​ 181 Consumer ​ ​ 88 ​ ​ 81 ​ ​ — ​ ​ 1,157 Other Commercial ​ ​ 98 ​ ​ 1 ​ ​ — ​ ​ 499 Total loans held for investment ​ $ 45,204 ​ $ 39,624 ​ $ 6,844 ​ $ 19,255
Impaired Loans by Class	As of December 31, 2019, the Company measured the amount of impairment by evaluating loans either in their collective homogeneous pools or individually. The following table shows the Company’s loans, excluding PCI loans, by class at December 31, 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019 ​ ​ ​ Unpaid ​ ​ ​ ​ Recorded ​ Principal ​ Related ​ ​ Investment ​ Balance ​ Allowance Loans without a specific allowance ​ ​ ​ Construction and Land Development ​ $ 5,877 ​ $ 7,174 ​ $ — Commercial Real Estate - Owner Occupied ​ 8,801 ​ 9,296 ​ — Commercial Real Estate - Non-Owner Occupied ​ 3,510 ​ 4,059 ​ — Commercial & Industrial ​ 3,668 ​ 3,933 ​ — Residential 1-4 Family - Commercial ​ 4,047 ​ 4,310 ​ — Residential 1-4 Family - Consumer ​ 8,420 ​ 9,018 ​ — Residential 1-4 Family - Revolving ​ 862 ​ 865 ​ — Total impaired loans without a specific allowance ​ $ 35,185 ​ $ 38,655 ​ $ — Loans with a specific allowance ​ ​ ​ Construction and Land Development ​ $ 984 ​ $ 1,032 ​ $ 49 Commercial Real Estate - Owner Occupied ​ 2,820 ​ 3,093 ​ 146 Commercial Real Estate - Non-Owner Occupied ​ 335 ​ 383 ​ 2 Commercial & Industrial ​ 2,568 ​ 2,590 ​ 619 Residential 1-4 Family - Commercial ​ 1,726 ​ 1,819 ​ 162 Residential 1-4 Family - Consumer ​ 12,026 ​ 12,670 ​ 1,242 Residential 1-4 Family - Revolving ​ 2,186 ​ 2,369 ​ 510 Auto ​ 563 ​ 879 ​ 221 Consumer ​ 168 ​ 336 ​ 46 Other Commercial ​ ​ 562 ​ ​ 567 ​ ​ 30 Total impaired loans with a specific allowance ​ $ 23,938 ​ $ 25,738 ​ $ 3,027 Total impaired loans ​ $ 59,123 ​ $ 64,393 ​ $ 3,027 ​ The following table shows the average recorded investment and interest income recognized for the Company’s loans, excluding PCI loans, by class for the three and six months ended June 30, 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ Six Months Ended ​ ​ June 30, 2019 ​ June 30, 2019 ​ ​ ​ Interest ​ ​ Interest ​ ​ Average ​ Income ​ Average ​ Income ​ ​ Investment ​ Recognized ​ Investment ​ Recognized Construction and Land Development ​ $ 7,811 ​ $ 13 ​ $ 8,167 ​ $ 54 Commercial Real Estate - Owner Occupied ​ 12,002 ​ 91 ​ 12,030 ​ 200 Commercial Real Estate - Non-Owner Occupied ​ 6,931 ​ 60 ​ 6,944 ​ 119 Commercial & Industrial ​ 3,038 ​ 27 ​ 3,081 ​ 59 Residential 1-4 Family - Commercial ​ 6,125 ​ 29 ​ 5,848 ​ 56 Residential 1-4 Family - Consumer ​ 19,830 ​ 50 ​ 19,939 ​ 187 Residential 1-4 Family - Revolving ​ 3,489 ​ 38 ​ 3,506 ​ 78 Auto ​ 493 ​ — ​ 520 ​ 1 Consumer ​ 191 ​ 2 ​ 195 ​ 3 Other Commercial ​ ​ 579 ​ ​ 7 ​ ​ 583 ​ ​ 15 Total impaired loans ​ $ 60,489 ​ $ 317 ​ $ 60,813 ​ $ 772
Summary of Modified Loans that Continue to Accrue Interest Under the Terms of Restructuring Agreement	The following table provides a summary, by class, of TDRs that continue to accrue interest under the terms of the applicable restructuring agreement, which are considered to be performing, and TDRs that have been placed on nonaccrual status, which are considered to be nonperforming, as of June 30, 2020 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 ​ No. of Recorded Outstanding ​ ​ Loans ​ Investment ​ Commitment Performing ​ ​ Construction and Land Development 4 ​ $ 222 ​ $ — Commercial Real Estate - Owner Occupied 6 ​ 2,218 ​ 26 Commercial Real Estate - Non-Owner Occupied 1 ​ 1,089 ​ — Commercial & Industrial 5 ​ 1,129 ​ — Residential 1-4 Family - Commercial 4 ​ 214 ​ — Residential 1-4 Family - Consumer 79 ​ 9,886 ​ — Residential 1-4 Family - Revolving 2 ​ 55 ​ — Consumer 5 ​ 34 ​ — Other Commercial ​ 1 ​ ​ 456 ​ ​ — Total performing 107 ​ $ 15,303 ​ $ 26 Nonperforming ​ ​ Commercial Real Estate - Owner Occupied 2 ​ $ 165 ​ $ — Commercial & Industrial 2 ​ 128 ​ — Residential 1-4 Family - Commercial 1 ​ 71 ​ — Residential 1-4 Family - Consumer 21 ​ 4,572 ​ — Residential 1-4 Family - Revolving 3 ​ 106 ​ — Total nonperforming 29 ​ $ 5,042 ​ $ — Total performing and nonperforming 136 ​ $ 20,345 ​ $ 26 The following table provides a summary, by class, of TDRs that continue to accrue interest under the terms of the applicable restructuring agreement, which are considered to be performing, and TDRs that have been placed on nonaccrual status, which are considered to be nonperforming, as of December 31, 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019 ​ No. of Recorded Outstanding ​ ​ Loans ​ Investment ​ Commitment Performing ​ ​ Construction and Land Development 4 ​ $ 1,114 ​ $ — Commercial Real Estate - Owner Occupied 6 ​ 2,228 ​ 26 Commercial Real Estate - Non-Owner Occupied 1 ​ 1,089 ​ — Commercial & Industrial 4 ​ 1,020 ​ — Residential 1-4 Family - Commercial 5 ​ 290 ​ — Residential 1-4 Family - Consumer 69 ​ 9,396 ​ — Residential 1-4 Family - Revolving 2 ​ 56 ​ — Consumer 4 ​ 29 ​ — Other Commercial ​ 1 ​ ​ 464 ​ ​ — Total performing 96 ​ $ 15,686 ​ $ 26 Nonperforming ​ ​ Commercial Real Estate - Owner Occupied 2 ​ $ 176 ​ $ — Commercial & Industrial 1 ​ 55 ​ — Residential 1-4 Family - Consumer 19 ​ 3,522 ​ — Residential 1-4 Family - Revolving 2 ​ 57 ​ — Total nonperforming 24 ​ $ 3,810 ​ $ — Total performing and nonperforming 120 ​ $ 19,496 ​ $ 26
Schedule of TDR by Class and Modification Type	The following table shows, by class and modification type, TDRs that occurred during the three and six months ended June 30, 2020 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ All Restructurings ​ ​ Three Months Ended June 30, 2020 ​ Six Months Ended June 30, 2020 ​ ​ 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 ​ ​ Commercial & Industrial 4 ​ $ 353 4 ​ $ 353 Residential 1-4 Family - Consumer 3 ​ 326 3 ​ 326 Consumer ​ 1 ​ ​ 10 ​ 1 ​ ​ 10 Total loan term extended at a market rate 8 ​ $ 689 8 ​ $ 689 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Term modification, below market rate ​ ​ Construction and Land Development ​ — ​ $ — ​ 1 ​ $ 35 Residential 1-4 Family - Consumer 3 ​ ​ 172 13 ​ ​ 1,937 Residential 1-4 Family - Revolving 1 ​ 52 1 ​ 52 Total loan term extended at a below market rate 4 ​ $ 224 15 ​ $ 2,024 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest rate modification, below market rate ​ ​ Total interest only at below market rate of interest — ​ $ — — ​ $ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total 12 ​ $ 913 23 ​ $ 2,713 The following table shows, by class and modification type, TDRs that occurred during the three and six months ended June 30, 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ All Restructurings ​ ​ Three Months Ended June 30, 2019 ​ Six Months Ended June 30, 2019 ​ ​ 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 ​ ​ Residential 1-4 Family - Commercial — ​ $ — 1 ​ $ 74 Residential 1-4 Family - Consumer 1 ​ 43 3 ​ 299 Consumer — ​ — 1 ​ 9 Total loan term extended at a market rate 1 ​ $ 43 5 ​ $ 382 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Term modification, below market rate ​ ​ Residential 1-4 Family - Consumer 9 ​ $ 483 14 ​ $ 1,410 Consumer ​ — ​ ​ — ​ 1 ​ ​ 6 Total loan term extended at a below market rate 9 ​ $ 483 15 ​ $ 1,416 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total 10 ​ $ 526 20 ​ $ 1,798 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
Allowance for Loan Loss Activity, by Portfolio Segment, Balances for Allowance for Credit Losses, and Loans Based on Impairment Methodology	The following tables show the ALLL activity by segment for the three and six months ended June 30, 2020 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended June 30, 2020 ​ Six Months Ended June 30, 2020 ​ ​ Commercial ​ Consumer ​ Total ​ Commercial ​ Consumer ​ Total Balance at beginning of period ​ $ 77,843 ​ $ 63,200 ​ $ 141,043 ​ $ 30,941 ​ $ 11,353 ​ $ 42,294 Impact of ASC 326 adoption on non-PCD loans ​ — ​ — ​ — ​ 4,432 ​ 40,666 ​ 45,098 Impact of ASC 326 adoption on PCD loans ​ — ​ — ​ — ​ 1,752 ​ 634 ​ 2,386 Impact of adopting ASC 326 ​ — ​ — ​ — ​ 6,184 ​ 41,300 ​ 47,484 Loans charged-off ​ (1,590) ​ (3,087) ​ (4,677) ​ (4,558) ​ (7,270) ​ (11,828) Recoveries credited to allowance ​ 708 ​ 703 ​ 1,411 ​ 1,862 ​ 1,709 ​ 3,571 Provision charged to operations ​ 34,993 ​ (2,793) ​ 32,200 ​ 77,525 ​ 10,931 ​ 88,456 Balance at end of period ​ $ 111,954 ​ $ 58,023 ​ $ 169,977 ​ $ 111,954 ​ $ 58,023 ​ $ 169,977 The following table shows the ALLL activity by class for the six months ended June 30, 2019. The table below includes 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): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Six Months Ended June 30, 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 ​ $ 97 ​ $ (800) ​ $ (101) ​ $ 5,999 Commercial Real Estate - Owner Occupied ​ 4,023 ​ 54 ​ (231) ​ 235 ​ 4,081 Commercial Real Estate - Non-Owner Occupied ​ 8,865 ​ 92 ​ — ​ 654 ​ 9,611 Multifamily Real Estate ​ 649 ​ 85 ​ — ​ (70) ​ 664 Commercial & Industrial ​ 7,636 ​ 681 ​ (1,858) ​ 1,237 ​ 7,696 Residential 1-4 Family - Commercial ​ 1,692 ​ 127 ​ (267) ​ 66 ​ 1,618 Residential 1-4 Family - Consumer ​ 1,492 ​ 219 ​ (37) ​ 218 ​ 1,892 Residential 1-4 Family - Revolving ​ 1,297 ​ 434 ​ (523) ​ 47 ​ 1,255 Auto ​ 1,443 ​ 339 ​ (703) ​ 334 ​ 1,413 Consumer and all other (1) ​ 7,145 ​ 1,238 ​ (7,454) ​ 7,305 ​ 8,234 Total ​ $ 41,045 ​ $ 3,366 ​ $ (11,873) ​ $ 9,925 ​ $ 42,463 (1) Consumer and Other Commercial are grouped together as Consumer and all other for reporting purposes. ​ The following tables show the loan and ALLL balances based on impairment methodology by class as of December 31, 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019 ​ ​ Loans individually ​ Loans collectively ​ Loans acquired with ​ ​ ​ ​ ​ ​ ​ ​ evaluated for ​ evaluated for ​ deteriorated credit ​ ​ ​ ​ ​ ​ ​ ​ impairment ​ impairment ​ quality ​ Total ​ Loans ALL Loans ALL Loans ALL Loans ALL Construction and Land Development ​ $ 6,861 ​ $ 49 ​ $ 1,233,119 ​ $ 5,709 ​ $ 10,944 ​ $ — ​ $ 1,250,924 ​ $ 5,758 Commercial Real Estate - Owner Occupied ​ 11,621 ​ 146 ​ 2,002,184 ​ 3,773 ​ 27,438 ​ — ​ 2,041,243 ​ 3,919 Commercial Real Estate - Non-Owner Occupied ​ 3,845 ​ 2 ​ 3,267,688 ​ 9,541 ​ 14,565 ​ — ​ 3,286,098 ​ 9,543 Multifamily Real Estate ​ — ​ — ​ 633,649 ​ 632 ​ 94 ​ — ​ 633,743 ​ 632 Commercial & Industrial ​ 6,236 ​ 619 ​ 2,106,218 ​ 7,768 ​ 1,579 ​ 217 ​ 2,114,033 ​ 8,604 Residential 1-4 Family - Commercial ​ 5,773 ​ 162 ​ 706,359 ​ 1,203 ​ 12,205 ​ — ​ 724,337 ​ 1,365 Residential 1-4 Family - Consumer ​ 20,446 ​ 1,242 ​ 855,344 ​ 771 ​ 14,713 ​ — ​ 890,503 ​ 2,013 Residential 1-4 Family - Revolving ​ 3,048 ​ 510 ​ 652,329 ​ 813 ​ 4,127 ​ — ​ 659,504 ​ 1,323 Auto ​ 563 ​ 221 ​ 349,852 ​ 1,232 ​ 4 ​ — ​ 350,419 ​ 1,453 Consumer and all other (1) ​ 730 ​ 76 ​ 658,390 ​ 7,608 ​ 1,012 ​ — ​ 660,132 ​ 7,684 Total loans held for investment, net ​ $ 59,123 ​ $ 3,027 ​ $ 12,465,132 ​ $ 39,050 ​ $ 86,681 ​ $ 217 ​ $ 12,610,936 ​ $ 42,294 (1) Consumer and Other Commercial are grouped together as Consumer and all other for reporting purposes.
Loans Receivables Related Risk Rating	The following table shows the recorded investment in all loans, excluding PCI loans, by 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
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, as of June 30, 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ For the Six Months Ended June 30, ​ 2019 Balance at beginning of period ​ $ 31,201 Additions ​ 2,432 Accretion ​ (6,510) Reclass of nonaccretable difference due to improvement in expected cash flows ​ 716 Measurement period adjustment ​ 2,629 Other, net (1) ​ 2,182 Balance at end of period ​ $ 32,650 (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 quarter.
Purchased Impaired
Accounts, Notes, Loans and Financing Receivable [Line Items]
Summary of Aging of the Loan Portfolio by Class	The following table shows the PCI loan portfolios, by class and their delinquency status, at December 31, 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 30-89 Days Greater than ​ ​ ​ ​ ​ ​ Past Due ​ 90 Days ​ Current ​ Total Construction and Land Development ​ $ 136 ​ $ 343 ​ $ 10,465 ​ $ 10,944 Commercial Real Estate - Owner Occupied ​ 480 ​ 6,884 ​ 20,074 ​ 27,438 Commercial Real Estate - Non-Owner Occupied ​ 848 ​ 987 ​ 12,730 ​ 14,565 Multifamily Real Estate ​ — ​ — ​ 94 ​ 94 Commercial & Industrial ​ — ​ 989 ​ 590 ​ 1,579 Residential 1-4 Family - Commercial ​ 543 ​ 1,995 ​ 9,667 ​ 12,205 Residential 1-4 Family - Consumer ​ 927 ​ 1,781 ​ 12,005 ​ 14,713 Residential 1-4 Family - Revolving ​ 287 ​ 205 ​ 3,635 ​ 4,127 Auto ​ ​ — ​ ​ — ​ ​ 4 ​ ​ 4 Consumer ​ ​ — ​ ​ 9 ​ ​ 659 ​ ​ 668 Other Commercial ​ — ​ — ​ 344 ​ 344 Total ​ $ 3,221 ​ $ 13,193 ​ $ 70,267 ​ $ 86,681
Loans Receivables Related Risk Rating	The following table shows the recorded investment in only PCI loans by 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
Commercial Portfolio
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivables Related Risk Rating	The table below details the amortized cost of the classes of loans within the Commercial segment by risk level and year of origination as of June 30, 2020 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 ​ ​ ​ Term Loans Amortized Cost Basis by Origination Year ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020 ​ 2019 ​ 2018 ​ 2017 ​ 2016 ​ Prior ​ Revolving Loans ​ Total Construction and Land Development ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 137,981 ​ $ 453,779 ​ $ 395,935 ​ $ 64,529 ​ $ 47,982 ​ $ 70,524 ​ $ 29,060 ​ $ 1,199,790 Watch & Special Mention ​ ​ 4,492 ​ ​ 6,859 ​ ​ 1,061 ​ ​ 350 ​ ​ 5,759 ​ ​ 16,202 ​ ​ 2,509 ​ ​ 37,232 Substandard ​ ​ — ​ ​ 1 ​ ​ 59 ​ ​ 962 ​ ​ 2,468 ​ ​ 7,427 ​ ​ — ​ ​ 10,917 Total Construction and Land Development ​ $ 142,473 ​ $ 460,639 ​ $ 397,055 ​ $ 65,841 ​ $ 56,209 ​ $ 94,153 ​ $ 31,569 ​ $ 1,247,939 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial Real Estate - Owner Occupied ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 144,263 ​ $ 384,862 ​ $ 290,813 ​ $ 258,877 ​ $ 147,657 ​ $ 658,853 ​ $ 23,773 ​ $ 1,909,098 Watch & Special Mention ​ ​ — ​ ​ 10,694 ​ ​ 24,683 ​ ​ 15,082 ​ ​ 28,604 ​ ​ 57,783 ​ ​ 2,475 ​ ​ 139,321 Substandard ​ ​ — ​ ​ — ​ ​ 1,106 ​ ​ 400 ​ ​ 1,123 ​ ​ 15,664 ​ ​ 375 ​ ​ 18,668 Total Commercial Real Estate - Owner Occupied ​ $ 144,263 ​ $ 395,556 ​ $ 316,602 ​ $ 274,359 ​ $ 177,384 ​ $ 732,300 ​ $ 26,623 ​ $ 2,067,087 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial Real Estate - Non-Owner Occupied ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 214,340 ​ $ 515,046 ​ $ 488,913 ​ $ 498,462 ​ $ 455,214 ​ $ 1,121,284 ​ $ 50,855 ​ $ 3,344,114 Watch & Special Mention ​ ​ 1,265 ​ ​ 17,170 ​ ​ 14,631 ​ ​ 16,585 ​ ​ 20,830 ​ ​ 33,911 ​ ​ 249 ​ ​ 104,641 Substandard ​ ​ — ​ ​ — ​ ​ 164 ​ ​ — ​ ​ 25 ​ ​ 5,981 ​ ​ 200 ​ ​ 6,370 Total Commercial Real Estate - Non-Owner Occupied ​ $ 215,605 ​ $ 532,216 ​ $ 503,708 ​ $ 515,047 ​ $ 476,069 ​ $ 1,161,176 ​ $ 51,304 ​ $ 3,455,125 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial & Industrial ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 1,868,291 ​ $ 439,598 ​ $ 241,038 ​ $ 85,126 ​ $ 82,301 ​ $ 169,136 ​ $ 601,547 ​ $ 3,487,037 Watch & Special Mention ​ ​ 1,630 ​ ​ 4,963 ​ ​ 11,326 ​ ​ 2,963 ​ ​ 5,536 ​ ​ 5,656 ​ ​ 27,680 ​ ​ 59,754 Substandard ​ ​ — ​ ​ 484 ​ ​ 828 ​ ​ 158 ​ ​ 826 ​ ​ 2,806 ​ ​ 4,078 ​ ​ 9,180 Total Commercial & Industrial ​ $ 1,869,921 ​ $ 445,045 ​ $ 253,192 ​ $ 88,247 ​ $ 88,663 ​ $ 177,598 ​ $ 633,305 ​ $ 3,555,971 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Multifamily Real Estate ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 79,312 ​ $ 80,058 ​ $ 70,145 ​ $ 144,193 ​ $ 70,943 ​ $ 245,687 ​ $ 6,904 ​ $ 697,242 Watch & Special Mention ​ ​ — ​ ​ 653 ​ ​ 4,415 ​ ​ 8,254 ​ ​ 1,137 ​ ​ 5,619 ​ ​ — ​ ​ 20,078 Substandard ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 399 ​ ​ — ​ ​ 399 Total Multifamily Real Estate ​ $ 79,312 ​ $ 80,711 ​ $ 74,560 ​ $ 152,447 ​ $ 72,080 ​ $ 251,705 ​ $ 6,904 ​ $ 717,719 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Residential 1-4 Family - Commercial ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 58,222 ​ $ 105,249 ​ $ 78,610 ​ $ 97,653 ​ $ 82,407 ​ $ 244,579 ​ $ 1,721 ​ $ 668,441 Watch & Special Mention ​ ​ 1,214 ​ ​ 5,356 ​ ​ 8,535 ​ ​ 5,022 ​ ​ 2,053 ​ ​ 14,874 ​ ​ — ​ ​ 37,054 Substandard ​ ​ — ​ ​ 485 ​ ​ 324 ​ ​ 630 ​ ​ 1,180 ​ ​ 6,782 ​ ​ 488 ​ ​ 9,889 Total Residential 1-4 Family - Commercial ​ $ 59,436 ​ $ 111,090 ​ $ 87,469 ​ $ 103,305 ​ $ 85,640 ​ $ 266,235 ​ $ 2,209 ​ $ 715,384 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other Commercial ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 121,097 ​ $ 114,883 ​ $ 10,376 ​ $ 40,118 ​ $ 16,919 ​ $ 60,477 ​ $ 18,630 ​ $ 382,500 Watch & Special Mention ​ ​ — ​ ​ — ​ ​ 629 ​ ​ 1,324 ​ ​ 927 ​ ​ 3,251 ​ ​ — ​ ​ 6,131 Substandard ​ ​ — ​ ​ — ​ ​ — ​ ​ 59 ​ ​ — ​ ​ 500 ​ ​ — ​ ​ 559 Total Other Commercial ​ $ 121,097 ​ $ 114,883 ​ $ 11,005 ​ $ 41,501 ​ $ 17,846 ​ $ 64,228 ​ $ 18,630 ​ $ 389,190 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total Commercial ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 2,623,506 ​ $ 2,093,475 ​ $ 1,575,830 ​ $ 1,188,958 ​ $ 903,423 ​ $ 2,570,540 ​ $ 732,490 ​ $ 11,688,222 Watch & Special Mention ​ ​ 8,601 ​ ​ 45,695 ​ ​ 65,280 ​ ​ 49,580 ​ ​ 64,846 ​ ​ 137,296 ​ ​ 32,913 ​ ​ 404,211 Substandard ​ ​ — ​ ​ 970 ​ ​ 2,481 ​ ​ 2,209 ​ ​ 5,622 ​ ​ 39,559 ​ ​ 5,141 ​ ​ 55,982 Total Commercial ​ $ 2,632,107 ​ $ 2,140,140 ​ $ 1,643,591 ​ $ 1,240,747 ​ $ 973,891 ​ $ 2,747,395 ​ $ 770,544 ​ $ 12,148,415
Consumer Portfolio
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivables Related Risk Rating	For Consumer loans, the Company evaluates credit quality based on the delinquency status of the loan. The following table details the amortized cost of the classes of loans within the Consumer segment based on their delinquency status and year of origination as of June 30, 2020 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 ​ ​ ​ Term Loans Amortized Cost Basis by Origination Year ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020 ​ 2019 ​ 2018 ​ 2017 ​ 2016 ​ Prior ​ Revolving Loans ​ Total Residential 1-4 Family - Consumer ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Current ​ $ 91,069 ​ $ 86,537 ​ $ 90,968 ​ $ 87,658 ​ $ 120,412 ​ $ 342,221 ​ $ 12 ​ $ 818,877 30-59 Days Past Due ​ ​ 37 ​ ​ — ​ ​ 20 ​ ​ 90 ​ ​ 185 ​ ​ 897 ​ ​ — ​ ​ 1,229 60-89 Days Past Due ​ ​ — ​ ​ 636 ​ ​ 109 ​ ​ 1,986 ​ ​ 250 ​ ​ 836 ​ ​ — ​ ​ 3,817 90+ Days Past Due ​ ​ 162 ​ ​ 1,756 ​ ​ 151 ​ ​ 446 ​ ​ 223 ​ ​ 2,361 ​ ​ — ​ ​ 5,099 Nonaccrual ​ ​ — ​ ​ — ​ ​ 718 ​ ​ 879 ​ ​ 790 ​ ​ 9,642 ​ ​ — ​ ​ 12,029 Total Residential 1-4 Family - Consumer ​ $ 91,268 ​ $ 88,929 ​ $ 91,966 ​ $ 91,059 ​ $ 121,860 ​ $ 355,957 ​ $ 12 ​ $ 841,051 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Residential 1-4 Family - Revolving ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Current ​ $ 9,667 ​ $ 4,666 ​ $ 2,167 ​ $ 18 ​ $ — ​ $ 653 ​ $ 602,001 ​ $ 619,172 30-59 Days Past Due ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 1,924 ​ ​ 1,924 60-89 Days Past Due ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 1,048 ​ ​ 1,048 90+ Days Past Due ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 1,995 ​ ​ 1,995 Nonaccrual ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 314 ​ ​ 3,312 ​ ​ 3,626 Total Residential 1-4 Family - Revolving ​ $ 9,667 ​ $ 4,666 ​ $ 2,167 ​ $ 18 ​ $ — ​ $ 967 ​ $ 610,280 ​ $ 627,765 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Consumer ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Current ​ $ 24,807 ​ $ 91,712 ​ $ 94,273 ​ $ 30,170 ​ $ 13,211 ​ $ 18,930 ​ $ 35,616 ​ $ 308,719 30-59 Days Past Due ​ ​ 14 ​ ​ 261 ​ ​ 407 ​ ​ 74 ​ ​ 61 ​ ​ 2 ​ ​ 25 ​ ​ 844 60-89 Days Past Due ​ ​ 19 ​ ​ 198 ​ ​ 296 ​ ​ 30 ​ ​ 6 ​ ​ — ​ ​ 12 ​ ​ 561 90+ Days Past Due ​ ​ — ​ ​ 92 ​ ​ 382 ​ ​ 85 ​ ​ 19 ​ ​ 215 ​ ​ 364 ​ ​ 1,157 Nonaccrual ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 2 ​ ​ 79 ​ ​ — ​ ​ 81 Total Consumer ​ $ 24,840 ​ $ 92,263 ​ $ 95,358 ​ $ 30,359 ​ $ 13,299 ​ $ 19,226 ​ $ 36,017 ​ $ 311,362 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Auto ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Current ​ $ 89,044 ​ $ 138,532 ​ $ 70,484 ​ $ 43,386 ​ $ 24,536 ​ $ 11,840 ​ $ — ​ $ 377,822 30-59 Days Past Due ​ ​ 88 ​ ​ 291 ​ ​ 247 ​ ​ 254 ​ ​ 186 ​ ​ 110 ​ ​ — ​ ​ 1,176 60-89 Days Past Due ​ ​ — ​ ​ 90 ​ ​ 21 ​ ​ 41 ​ ​ 84 ​ ​ 54 ​ ​ — ​ ​ 290 90+ Days Past Due ​ ​ — ​ ​ 11 ​ ​ 62 ​ ​ 58 ​ ​ 9 ​ ​ 41 ​ ​ — ​ ​ 181 Nonaccrual ​ ​ — ​ ​ 142 ​ ​ 84 ​ ​ 112 ​ ​ 161 ​ ​ 85 ​ ​ — ​ ​ 584 Total Auto ​ $ 89,132 ​ $ 139,066 ​ $ 70,898 ​ $ 43,851 ​ $ 24,976 ​ $ 12,130 ​ $ — ​ $ 380,053 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total Consumer ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Current ​ $ 214,587 ​ $ 321,447 ​ $ 257,892 ​ $ 161,232 ​ $ 158,159 ​ $ 373,644 ​ $ 637,629 ​ $ 2,124,590 30-59 Days Past Due ​ ​ 139 ​ ​ 552 ​ ​ 674 ​ ​ 418 ​ ​ 432 ​ ​ 1,009 ​ ​ 1,949 ​ ​ 5,173 60-89 Days Past Due ​ ​ 19 ​ ​ 924 ​ ​ 426 ​ ​ 2,057 ​ ​ 340 ​ ​ 890 ​ ​ 1,060 ​ ​ 5,716 90+ Days Past Due ​ ​ 162 ​ ​ 1,859 ​ ​ 595 ​ ​ 589 ​ ​ 251 ​ ​ 2,617 ​ ​ 2,359 ​ ​ 8,432 Nonaccrual ​ ​ — ​ ​ 142 ​ ​ 802 ​ ​ 991 ​ ​ 953 ​ ​ 10,120 ​ ​ 3,312 ​ ​ 16,320 Total Consumer ​ $ 214,907 ​ $ 324,924 ​ $ 260,389 ​ $ 165,287 ​ $ 160,135 ​ $ 388,280 ​ $ 646,309 ​ $ 2,160,231

INTANGIBLE ASSETS (Tables)

INTANGIBLE ASSETS (Tables)	6 Months Ended
	Jun. 30, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Estimated Remaining Amortization Expense of Intangibles	As of June 30, 2020, the estimated remaining amortization expense of intangibles is as follows for the years ending (dollars in thousands): ​ ​ ​ ​ For the remaining six months of 2020 $ 7,920 2021 ​ ​ 13,874 2022 ​ ​ 11,490 2023 ​ ​ 9,687 2024 ​ ​ 7,818 Thereafter ​ ​ 14,316 Total estimated amortization expense ​ $ 65,105

LEASES (Tables)

LEASES (Tables)	6 Months Ended
	Jun. 30, 2020
Leases [Abstract]
Lessee Lease Portfolio and Other Supplemental Lease Information	The tables below provide information about the Company’s lessee lease portfolio and other supplemental lease information (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 ​ ​ ​ December 31, 2019 ​ ​ Operating ​ ​ Finance ​ ​ ​ Operating Right-of-use-assets ​ $ 53,208 ​ ​ $ 7,884 ​ ​ $ 54,941 ​ Lease liabilities ​ ​ 63,523 ​ ​ ​ 10,559 ​ ​ ​ 66,052 ​ Lease Term and Discount Rate of Operating leases: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted-average remaining lease term (years) ​ 7.00 ​ ​ ​ 8.58 ​ ​ ​ 7.36 ​ Weighted-average discount rate (1) ​ 2.43 % ​ ​ 1.17 % ​ ​ 2.69 % (1) An incremental borrowing rate is used based on information available at commencement date of lease.
Other Lease Information	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Six months ended June 30, ​ 2020 ​ 2019 Cash paid for amounts included in measurement of lease liabilities: ​ ​ ​ ​ ​ ​ Operating Cash Flows from Finance Leases ​ $ 10 ​ $ - Operating Cash Flows from Operating Leases ​ 6,893 ​ ​ 6,880 Right-of-use assets obtained in exchange for lease obligations: ​ ​ ​ ​ ​ Operating leases ​ 3,183 ​ ​ 3,619 Finance leases ​ ​ 10,549 ​ ​ -
Lease Cost	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three months ended June 30, ​ Six months ended June 30, ​ ​ ​ 2020 ​ ​ 2019 ​ ​ 2020 ​ ​ 2019 Net Operating Lease Cost ​ $ 2,928 ​ $ 3,134 ​ $ 5,847 ​ $ 6,136 Finance Lease Cost: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Amortization of right-of-use assets ​ ​ 77 ​ ​ - ​ ​ 77 ​ ​ - Interest on lease liabilities ​ ​ 10 ​ ​ - ​ ​ 10 ​ ​ - Total Lease Cost ​ $ 3,015 ​ $ 3,134 ​ $ 5,934 ​ $ 6,136
Maturities of Lessor and Lessee Arrangements Outstanding	The maturities of lessor and lessee arrangements outstanding at June 30, 2020 are presented in the tables below (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 ​ ​ Lessor ​ Lessee ​ ​ ​ Sales-type and Direct Financing ​ Operating ​ Finance For the remaining six months of 2020 $ 7,894 ​ $ 6,526 ​ $ — 2021 ​ 16,216 ​ ​ 12,182 ​ ​ 1,261 2022 ​ 17,093 ​ ​ 10,920 ​ ​ 1,292 2023 ​ 15,503 ​ ​ 9,958 ​ ​ 1,325 2024 ​ 13,130 ​ ​ 8,640 ​ ​ 1,358 2025 ​ ​ 4,310 ​ ​ 6,296 ​ ​ 1,392 Thereafter ​ 10,548 ​ ​ 15,088 ​ ​ 4,515 Total undiscounted cash flows ​ 84,694 ​ ​ 69,610 ​ ​ 11,143 Less: Adjustments (1) ​ 5,996 ​ ​ 6,087 ​ ​ 584 Total (2) ​ $ 78,698 ​ $ 63,523 ​ $ 10,559 (1) Lessor – unearned income and guaranteed residual value; Lessee – imputed interest. (2) Represents lease receivables for lessor arrangements and lease liabilities for lessee arrangements

BORROWINGS (Tables)

BORROWINGS (Tables)	6 Months Ended
	Jun. 30, 2020
Debt Disclosure [Abstract]
Short-Term Borrowings	Total short-term borrowings consist of the following as of June 30, 2020 and December 31, 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, ​ December 31, ​ ​ 2020 ​ 2019 Securities sold under agreements to repurchase ​ $ 77,216 ​ $ 66,053 ​ Federal Funds Purchased ​ ​ — ​ ​ — ​ FHLB advances ​ — ​ 370,200 ​ Total short-term borrowings ​ $ 77,216 ​ $ 436,253 ​ ​ ​ ​ ​ ​ ​ ​ ​ Average outstanding balance during the period ​ $ 272,470 ​ $ 673,116 ​ Average interest rate (during the period) ​ 1.13 % 2.30 % Average interest rate at end of period ​ 0.32 % 1.52 %
Trust Preferred Capital Notes Qualify for Tier 2 Capital	​ 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 June 30, 2020: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Trust ​ ​ ​ ​ ​ ​ ​ Preferred ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Capital ​ ​ ​ ​ Spread to ​ ​ ​ ​ ​ ​ Securities (1) ​ Investment (1) ​ 3-Month LIBOR ​ Rate (2) ​ Maturity Trust Preferred Capital Note - Statutory Trust I ​ $ 22,500 ​ $ 696 2.75 % 3.05 % 6/17/2034 Trust Preferred Capital Note - Statutory Trust II ​ 36,000 ​ 1,114 1.40 % 1.70 % 6/15/2036 VFG Limited Liability Trust I Indenture ​ 20,000 ​ 619 2.73 % 3.03 % 3/18/2034 FNB Statutory Trust II Indenture ​ 12,000 ​ 372 3.10 % 3.40 % 6/26/2033 Gateway Capital Statutory Trust I ​ 8,000 ​ 248 3.10 % 3.40 % 9/17/2033 Gateway Capital Statutory Trust II ​ 7,000 ​ 217 2.65 % 2.95 % 6/17/2034 Gateway Capital Statutory Trust III ​ 15,000 ​ 464 1.50 % 1.80 % 5/30/2036 Gateway Capital Statutory Trust IV ​ 25,000 ​ 774 1.55 % 1.85 % 7/30/2037 MFC Capital Trust II ​ 5,000 ​ 155 2.85 % 3.15 % 1/23/2034 Total ​ $ 150,500 ​ $ 4,659 (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 Company’s Consolidated Balance Sheets. (2) Rate as of June 30, 2020.
Advances from the FHLB	As of June 30, 2020, 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)(2) ​ Maturity Date ​ Advance Amount Convertible Flipper (0.75) % — % 8/17/2029 ​ $ 50,000 Convertible Flipper (0.75) % — % 5/22/2029 ​ 150,000 Convertible Flipper (0.75) % — % 5/30/2029 ​ 50,000 Convertible Flipper ​ (0.75) % — % 6/21/2029 ​ ​ 100,000 Fixed Rate Convertible ​ - ​ 1.78 % 10/26/2028 ​ ​ 200,000 Fixed Rate Credit ​ - ​ 1.54 % 10/2/2020 ​ ​ 10,000 ​ ​ ​ ​ ​ ​ ​ ​ $ 560,000 (1) Interest rates calculated using non-rounded numbers. (2) Convertible Flippers have interest rate floor of 0% 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)(2) ​ 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. (2) Convertible Flippers have interest rate floor of 0% ​
Contractual Maturities of Long-Term Debt	As of June 30, 2020, the contractual maturities of long-term debt are as follows for the years ending (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Trust ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Preferred ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value ​ ​ ​ ​ ​ Capital ​ Subordinated ​ PPPLF ​ FHLB ​ Premium ​ Total Long-term ​ ​ Notes ​ Debt ​ Advances ​ Advances ​ (Discount) (1) ​ Borrowings For the remaining six months of 2020 ​ $ — ​ $ — ​ $ — ​ $ 10,000 ​ $ (456) ​ $ 9,544 2021 ​ — ​ — ​ ​ — ​ — ​ (1,008) ​ (1,008) 2022 ​ — ​ — ​ ​ 189,941 ​ — ​ (1,030) ​ 188,911 2023 ​ — ​ — ​ ​ — ​ — ​ (1,053) ​ (1,053) 2024 ​ — ​ — ​ ​ — ​ — ​ (1,078) ​ (1,078) Thereafter ​ 155,159 ​ 158,500 ​ ​ — ​ 550,000 ​ (11,161) ​ 852,498 Total long-term borrowings ​ $ 155,159 ​ $ 158,500 ​ $ 189,941 ​ $ 560,000 ​ $ (15,786) ​ $ 1,047,814 (1) Includes discount on issued subordinated notes. ​

COMMITMENTS AND CONTINGENCIES (

COMMITMENTS AND CONTINGENCIES (Tables)	6 Months Ended
	Jun. 30, 2020
Commitments and Contingencies Disclosure [Abstract]
Balances of Commitments and Contingencies	The following table presents the balances of commitments and contingencies (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 December 31, 2019 Commitments with off-balance sheet risk: ​ ​ Commitments to extend credit (1) ​ $ 4,968,910 ​ $ 4,691,272 Standby letters of credit ​ 161,958 ​ 209,658 Total commitments with off-balance sheet risk ​ $ 5,130,868 ​ $ 4,900,930 (1) Includes unfunded overdraft protection. ​ ​ ​ ​ ​ ​
Schedule of Pledged Assets, Not Separately Reported on Statement of Financial Position	As part of the Company’s liquidity management strategy, it pledges collateral to secure various financing and other activities that occur during the normal course of business. The following tables present the types of collateral pledged, at June 30, 2020 and December 31, 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pledged Assets as of June 30, 2020 ​ ​ ​ ​ ​ ​ AFS HTM ​ ​ ​ ​ ​ ​ Cash ​ Securities (1) ​ Securities (1) ​ Loans (2) ​ Total Public deposits ​ $ — ​ $ 454,733 ​ $ 432,310 ​ $ — ​ $ 887,043 Repurchase agreements ​ — ​ 93,551 ​ — ​ — ​ 93,551 FHLB advances ​ — ​ 57,534 ​ — ​ 4,193,380 ​ 4,250,914 Derivatives ​ 271,551 ​ 1,033 ​ — ​ — ​ 272,584 Fed Funds ​ ​ — ​ ​ — ​ ​ — ​ ​ 319,068 ​ ​ 319,068 PPP Loans ​ ​ — ​ ​ — ​ ​ — ​ ​ 189,941 ​ ​ 189,941 Other purposes ​ — ​ ​ 127,384 ​ ​ 8,901 ​ ​ — ​ ​ 136,285 Total pledged assets ​ $ 271,551 ​ $ 734,235 ​ $ 441,211 ​ $ 4,702,389 ​ $ 6,149,386 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (1) Balance represents market value. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (2) Balance represents book value. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pledged Assets as of December 31, 2019 ​ ​ ​ ​ ​ ​ AFS HTM ​ ​ ​ ​ ​ ​ Cash ​ Securities (1) ​ Securities (1) ​ Loans (2) ​ Total Public deposits ​ $ — ​ $ 467,266 ​ $ 292,096 ​ $ — ​ $ 759,362 Repurchase agreements ​ — ​ 79,299 ​ 7,602 ​ — ​ 86,901 FHLB advances ​ — ​ 63,812 ​ — ​ 3,846,934 ​ 3,910,746 Derivatives ​ 116,839 ​ 1,260 ​ — ​ — ​ 118,099 Fed Funds ​ ​ — ​ ​ — ​ ​ — ​ ​ 292,738 ​ ​ 292,738 Other purposes ​ — ​ 122,358 ​ 10,654 ​ — ​ 133,012 Total pledged assets ​ $ 116,839 ​ $ 733,995 ​ $ 310,352 ​ $ 4,139,672 ​ $ 5,300,858 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (1) Balance represents book value. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (2) Balance represents market value. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

DERIVATIVES (Tables)

DERIVATIVES (Tables)	6 Months Ended
	Jun. 30, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Summary of the Derivatives	The following table summarizes key elements of the Company’s derivative instruments as of June 30, 2020 and December 31, 2019, segregated by derivatives that are considered accounting hedges and those that are not (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 December 31, 2019 ​ ​ ​ ​ ​ Derivative (2) ​ ​ ​ ​ Derivative (2) ​ Notional or ​ ​ ​ ​ Notional or ​ ​ ​ ​ ​ ​ Contractual ​ ​ ​ ​ ​ ​ ​ Contractual ​ ​ ​ ​ ​ ​ ​ ​ Amount (1) ​ Assets ​ Liabilities ​ Amount (1) ​ Assets ​ Liabilities Derivatives designated as accounting hedges: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest rate contracts: ​ ​ ​ ​ ​ ​ ​ ​ ​ Cash flow hedges ​ $ — ​ $ — ​ $ — ​ $ 100,000 ​ $ — ​ $ 1,147 Fair value hedges ​ 127,172 ​ — ​ 14,530 ​ 133,078 ​ 182 ​ 6,256 Derivatives not designated as accounting hedges: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Loan Swaps : ​ ​ ​ ​ ​ ​ Pay fixed - receive floating interest rate swaps ​ 2,064,653 ​ — ​ 194,707 ​ 1,575,149 ​ 753 ​ 53,592 Pay floating - receive fixed interest rate swaps ​ 2,064,653 ​ 194,707 ​ — ​ 1,575,149 ​ 53,592 ​ 753 ​ (1) Notional amounts are not recorded on the Company’s Consolidated Balance Sheets and are generally used only as a basis on which interest and other payments are determined. (2) Balances represent fair value of derivative financial instruments.
Schedule of Fair Value Hedging Instruments, Statements of Financial Performance and Financial Position, Location	The following table summarizes the carrying value of the Company’s hedged assets in fair value hedges and the associated cumulative basis adjustments included in those carrying values as of June 30, 2020 and December 31, 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 ​ December 31, 2019 ​ ​ ​ Cumulative ​ Cumulative ​ ​ ​ ​ ​ Amount of Basis ​ ​ ​ Amount of Basis ​ ​ ​ ​ ​ Adjustments ​ ​ ​ Adjustments ​ ​ ​ ​ ​ Included in the ​ ​ ​ Included in the ​ ​ Carrying Amount ​ Carrying ​ Carrying Amount ​ Carrying ​ ​ of Hedged ​ Amount of the ​ of Hedged ​ Amount of the ​ ​ Assets/(Liabilities) ​ Hedged ​ Assets/(Liabilities) ​ Hedged ​ ​ Amount (1) Assets/(Liabilities) ​ Amount (1) Assets/(Liabilities) Line items on the Consolidated Balance Sheets in which the hedged item is included: ​ ​ ​ ​ Securities available-for-sale (1) (2) ​ $ 191,589 ​ $ 8,309 ​ $ 206,799 ​ $ 4,072 Loans ​ 77,172 ​ 6,131 ​ 83,078 ​ 1,972 ​ (1) These amounts include the amortized cost basis of the investment securities designated in hedging relationships for which the hedged item is the last layer expected to be remaining at the end of the hedging relationship. At June 30, 2020 and December 31, 2019, the amortized cost basis of this portfolio was $ 192 million and $ 207 million, respectively and the cumulative basis adjustment associated with this hedge was $8.3 million and $4.1 million, respectively. The amount of the designated hedged item was $50 million. (2) Carrying value represents amortized cost.

STOCKHOLDERS' EQUITY (Tables)

STOCKHOLDERS' EQUITY (Tables)	6 Months Ended
	Jun. 30, 2020
Equity [Abstract]
Change in Accumulated Other Comprehensive Income	Accumulated Other Comprehensive Income (Loss) The change in accumulated other comprehensive income (loss) for the three and six months ended June 30, 2020 is summarized as follows, net of tax (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Unrealized Gains ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (Losses) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Unrealized ​ for AFS ​ ​ ​ ​ Unrealized ​ ​ ​ ​ ​ Gains (Losses) ​ Securities ​ Change in Fair ​ Gains ​ ​ ​ ​ ​ on AFS ​ Transferred to ​ Value of Cash ​ (Losses) on ​ ​ ​ ​ ​ Securities ​ HTM ​ Flow Hedge ​ BOLI ​ Total Balance - March 31, 2020 ​ $ 51,035 ​ $ 70 ​ $ — ​ $ (2,776) ​ $ 48,329 Other comprehensive income (loss): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other comprehensive income (loss) before reclassification ​ 21,019 ​ ​ — ​ ​ — ​ ​ — ​ 21,019 Amounts reclassified from AOCI into earnings ​ (8,168) ​ ​ (5) ​ ​ — ​ ​ 129 ​ (8,044) Net current period other comprehensive income (loss) ​ 12,851 ​ (5) ​ — ​ 129 ​ 12,975 Balance - June 30, 2020 ​ $ 63,886 ​ $ 65 ​ $ — ​ $ (2,647) ​ $ 61,304 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Unrealized Gains ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (Losses) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Unrealized ​ for AFS ​ ​ ​ ​ Unrealized ​ ​ ​ ​ ​ Gains (Losses) ​ Securities ​ Change in Fair ​ Gains ​ ​ ​ ​ ​ on AFS ​ Transferred to ​ Value of Cash ​ (Losses) on ​ ​ ​ ​ ​ Securities ​ HTM ​ Flow Hedge ​ BOLI ​ Total Balance - December 31, 2019 ​ $ 37,877 ​ $ 75 ​ $ (782) ​ $ (1,595) ​ $ 35,575 Other comprehensive income (loss): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other comprehensive income (loss) before reclassification ​ 35,706 ​ ​ — ​ ​ (699) ​ ​ (1,289) ​ 33,718 Amounts reclassified from AOCI into earnings ​ (9,697) ​ ​ (10) ​ ​ 1,481 ​ ​ 237 ​ (7,989) Net current period other comprehensive income (loss) ​ 26,009 ​ (10) ​ 782 ​ (1,052) ​ 25,729 Balance - June 30, 2020 ​ $ 63,886 ​ $ 65 ​ $ — ​ $ (2,647) ​ $ 61,304 ​ ​ The change in accumulated other comprehensive income (loss) for the three and six months ended June 30, 2019 is summarized as follows, net of tax (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Unrealized Gain ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (Losses) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Unrealized ​ for AFS ​ ​ ​ ​ Unrealized ​ ​ ​ ​ ​ Gains (Losses) ​ Securities ​ Change in Fair ​ Gains ​ ​ ​ ​ ​ on AFS ​ Transferred to ​ Value of Cash ​ (Losses) ​ ​ ​ ​ ​ Securities ​ HTM ​ Flow Hedge ​ on BOLI ​ Total Balance - March 31, 2019 ​ $ 14,047 ​ $ 90 ​ $ (4,733) ​ $ (1,007) ​ $ 8,397 Other comprehensive income (loss): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other comprehensive income (loss) before reclassification ​ 22,151 ​ ​ — ​ ​ (2,595) ​ ​ — ​ ​ 19,556 Amounts reclassified from AOCI into earnings ​ (73) ​ ​ (5) ​ ​ 173 ​ ​ 19 ​ ​ 114 Net current period other comprehensive income (loss) ​ 22,078 ​ (5) ​ (2,422) ​ 19 ​ 19,670 Balance - June 30, 2019 ​ $ 36,125 ​ $ 85 ​ $ (7,155) ​ $ (988) ​ $ 28,067 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Unrealized Gain ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (Losses) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Unrealized ​ for AFS ​ ​ ​ ​ Unrealized ​ ​ ​ ​ ​ Gains (Losses) ​ Securities ​ Change in Fair ​ Gains ​ ​ ​ ​ ​ on AFS ​ Transferred to ​ Value of Cash ​ (Losses) ​ ​ ​ ​ ​ Securities ​ HTM ​ Flow Hedge ​ 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 ​ 42,233 ​ ​ — ​ ​ (4,055) ​ ​ — ​ ​ 38,178 Amounts reclassified from AOCI into earnings ​ (159) ​ ​ (10) ​ ​ 293 ​ ​ 38 ​ ​ 162 Net current period other comprehensive income (loss) ​ 42,074 ​ (10) ​ (3,762) ​ 38 ​ 38,340 Balance - June 30, 2019 ​ $ 36,125 ​ $ 85 ​ $ (7,155) ​ $ (988) ​ $ 28,067

FAIR VALUE MEASUREMENTS (Tables

FAIR VALUE MEASUREMENTS (Tables)	6 Months Ended
	Jun. 30, 2020
Fair Value Disclosures [Abstract]
Schedule of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis	The following table presents the balances of financial assets and liabilities measured at fair value on a recurring basis at June 30, 2020 and December 31, 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurements at June 30, 2020 using ​ ​ ​ Significant ​ ​ ​ ​ ​ ​ Quoted Prices in ​ Other ​ Significant ​ ​ ​ ​ ​ Active Markets for ​ Observable ​ Unobservable ​ ​ ​ ​ ​ Identical Assets ​ Inputs ​ Inputs ​ ​ ​ ​ ​ Level 1 ​ Level 2 ​ Level 3 ​ Balance ASSETS ​ ​ ​ ​ ​ AFS securities: ​ ​ ​ ​ ​ U.S. government and agency securities ​ $ — ​ $ 14,646 ​ $ — ​ $ 14,646 Obligations of states and political subdivisions ​ — ​ 539,527 ​ — ​ 539,527 Corporate and other bonds (1) ​ — ​ 131,350 ​ — ​ 131,350 Mortgage-backed securities ​ — ​ 1,330,542 ​ — ​ 1,330,542 Other securities ​ — ​ 3,099 ​ — ​ 3,099 Loans held for sale ​ — ​ 55,067 ​ — ​ 55,067 Derivatives: ​ ​ ​ ​ Interest rate swap ​ — ​ 194,707 ​ — ​ 194,707 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ LIABILITIES ​ ​ ​ ​ Derivatives: ​ ​ ​ ​ Interest rate swap ​ $ — ​ $ 194,707 ​ $ — ​ $ 194,707 Fair value hedges ​ — ​ 14,530 ​ — ​ 14,530 (1) Other bonds include asset-backed securities. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurements at December 31, 2019 using ​ ​ ​ Significant ​ ​ ​ ​ ​ ​ Quoted Prices in ​ Other ​ Significant ​ ​ ​ ​ ​ Active Markets for ​ Observable ​ Unobservable ​ ​ ​ ​ ​ Identical Assets ​ Inputs ​ Inputs ​ ​ ​ ​ ​ Level 1 ​ Level 2 ​ Level 3 ​ Balance ASSETS ​ ​ ​ ​ ​ AFS securities: ​ ​ ​ ​ ​ U.S. government and agency securities ​ $ — ​ $ 21,320 ​ $ — ​ $ 21,320 Obligations of states and political subdivisions ​ ​ — ​ ​ 447,091 ​ ​ — ​ ​ 447,091 Corporate and other bonds (1) ​ — ​ 135,959 ​ — ​ 135,959 Mortgage-backed securities ​ — ​ 1,337,996 ​ — ​ 1,337,996 Other securities ​ — ​ 3,079 ​ — ​ 3,079 Loans held for sale ​ ​ — ​ ​ 55,405 ​ ​ — ​ ​ 55,405 Derivatives: ​ ​ ​ ​ Interest rate swap ​ — ​ 54,345 ​ — ​ 54,345 Fair value hedges ​ — ​ 182 ​ — ​ 182 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ LIABILITIES ​ ​ ​ ​ Derivatives: ​ ​ ​ ​ Interest rate swap ​ $ — ​ $ 54,345 ​ $ — ​ $ 54,345 Cash flow hedges ​ — ​ 1,147 ​ — ​ 1,147 Fair value hedges ​ — ​ 6,256 ​ — ​ 6,256 (1) Other bonds include asset-backed securities.
Carrying Values and Estimated Fair Values of the Company's Financial Instruments	The carrying values and estimated fair values of the Company’s financial instruments at June 30, 2020 and December 31, 2019 are as follows (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurements at June 30, 2020 using ​ ​ ​ Quoted Prices Significant ​ ​ ​ ​ ​ ​ ​ ​ ​ in Active ​ Other ​ Significant ​ ​ ​ ​ ​ ​ ​ ​ Markets for ​ Observable ​ Unobservable ​ Total Fair ​ ​ ​ ​ ​ Identical Assets ​ Inputs ​ Inputs ​ Value ​ ​ Carrying ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Value ​ Level 1 ​ Level 2 ​ Level 3 ​ Balance ASSETS ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Cash and cash equivalents ​ $ 842,020 ​ $ 842,020 ​ $ — ​ $ — ​ $ 842,020 AFS securities ​ 2,019,164 ​ — ​ 2,019,164 ​ — ​ 2,019,164 HTM securities ​ 547,561 ​ — ​ 600,146 ​ 13,283 ​ 613,429 Restricted stock ​ 105,832 ​ — ​ 105,832 ​ — ​ 105,832 Loans held for sale ​ 55,067 ​ — ​ 55,067 ​ — ​ 55,067 Net loans ​ 14,138,669 ​ — ​ — ​ 13,970,248 ​ 13,970,248 Derivatives: ​ ​ ​ ​ ​ Interest rate swap ​ 194,707 ​ — ​ 194,707 ​ — ​ 194,707 Accrued interest receivable ​ 62,330 ​ — ​ 62,330 ​ — ​ 62,330 BOLI ​ 327,075 ​ — ​ 327,075 ​ — ​ 327,075 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ LIABILITIES ​ ​ ​ ​ ​ Deposits ​ $ 15,605,139 ​ $ — ​ $ 15,653,360 ​ $ — ​ $ 15,653,360 Borrowings ​ 1,125,030 ​ — ​ 1,093,558 ​ — ​ 1,093,558 Accrued interest payable ​ 4,495 ​ — ​ 4,495 ​ — ​ 4,495 Derivatives: ​ ​ ​ ​ ​ Interest rate swap ​ 194,707 ​ — ​ 194,707 ​ — ​ 194,707 Fair value hedges ​ 14,530 ​ — ​ 14,530 ​ — ​ 14,530 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurements at December 31, 2019 using ​ ​ ​ ​ ​ Quoted Prices ​ Significant ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ in Active ​ Other ​ Significant ​ ​ ​ ​ ​ ​ ​ ​ Markets for ​ Observable ​ Unobservable ​ Total Fair ​ ​ ​ ​ ​ Identical Assets ​ Inputs ​ Inputs ​ Value ​ ​ Carrying ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Value ​ Level 1 ​ Level 2 ​ Level 3 ​ Balance ASSETS ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Cash and cash equivalents ​ $ 436,032 ​ $ 436,032 ​ $ — ​ $ — ​ $ 436,032 AFS securities ​ 1,945,445 ​ — ​ 1,945,445 ​ — ​ 1,945,445 HTM securities ​ 555,144 ​ — ​ 585,820 ​ 17,683 ​ 603,503 Restricted stock ​ 130,848 ​ — ​ 130,848 ​ — ​ 130,848 Loans held for sale ​ ​ 55,405 ​ ​ — ​ 55,405 ​ — ​ ​ 55,405 Net loans ​ 12,568,642 ​ — ​ — ​ 12,449,505 ​ 12,449,505 Derivatives: ​ ​ ​ ​ ​ Interest rate swap ​ 54,345 ​ — ​ 54,345 ​ — ​ 54,345 Fair value hedges ​ 182 ​ — ​ 182 ​ — ​ 182 Accrued interest receivable ​ 52,721 ​ — ​ 52,721 ​ — ​ 52,721 BOLI ​ 322,917 ​ — ​ 322,917 ​ — ​ 322,917 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ LIABILITIES ​ ​ ​ ​ ​ Deposits ​ $ 13,304,981 ​ $ — ​ $ 13,349,943 ​ $ — ​ $ 13,349,943 Borrowings ​ 1,513,748 ​ — ​ 1,479,606 ​ — ​ 1,479,606 Accrued interest payable ​ 6,108 ​ — ​ 6,108 ​ — ​ 6,108 Derivatives: ​ ​ ​ ​ ​ Interest rate swap ​ 54,345 ​ — ​ 54,345 ​ — ​ 54,345 Cash flow hedges ​ 1,147 ​ — ​ 1,147 ​ — ​ 1,147 Fair value hedges ​ 6,256 ​ — ​ 6,256 ​ — ​ 6,256

REVENUE (Tables)

REVENUE (Tables)	6 Months Ended
	Jun. 30, 2020
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue	Noninterest income disaggregated by major source, for the three and six months ended June 30, 2020 and 2019, consisted of the following (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended Six Months Ended ​ ​ June 30, ​ June 30, June 30, ​ June 30, ​ ​ 2020 ​ 2019 2020 ​ 2019 Noninterest income: ​ ​ ​ ​ ​ Deposit Service Charges (1) ​ ​ ​ ​ ​ Overdraft fees ​ $ 3,245 ​ $ 6,045 ​ $ 9,010 ​ $ 11,827 Maintenance fees & other ​ 1,685 ​ 1,454 ​ 3,498 ​ 2,829 Other service charges, commissions, and fees (1) ​ 1,354 ​ 1,702 ​ 2,978 ​ 3,367 Interchange fees (1) ​ 1,697 ​ 5,612 ​ 3,321 ​ 10,656 Fiduciary and asset management fees (1) ​ ​ ​ ​ ​ ​ ​ ​ Trust asset management fees ​ 2,470 ​ 1,976 ​ 5,298 ​ 3,315 Registered advisor management fees ​ 2,091 ​ 2,825 ​ 4,178 ​ 5,701 Brokerage management fees ​ 954 ​ 897 ​ 2,023 ​ 1,736 Mortgage banking income ​ 5,826 ​ 2,785 ​ 7,847 ​ 4,240 Gains (losses) on securities transactions ​ 10,339 ​ 51 ​ 12,275 ​ 202 Bank owned life insurance income ​ 2,027 ​ 2,075 ​ 4,076 ​ 4,129 Loan-related interest rate swap fees ​ 5,484 ​ 3,716 ​ 9,432 ​ 5,176 Other operating income (2) ​ (1,240) ​ 1,440 ​ 902 ​ 2,337 Total noninterest income (3) ​ $ 35,932 ​ $ 30,578 ​ $ 64,838 ​ $ 55,515 (1) Income within scope of Topic 606. (2) Includes income within the scope of Topic 606 of $645,000 and $1.1 million for the three months ended June 30, 2020 and 2019, respectively, and $1.2 million and $1.9 million for the six months ended June 30, 2020 and 2019, respectively. The remaining balance is outside the scope of Topic 606. (3) Noninterest income for the discontinued mortgage segment is reported in Note 14 "Segment Reporting & Discontinued Operations."

EARNINGS PER SHARE (Tables)

EARNINGS PER SHARE (Tables)	6 Months Ended
	Jun. 30, 2020
Earnings Per Share [Abstract]
Reconciliation of the Denominators of the Basic and Diluted EPS Computations	The following table presents EPS from continuing operations, discontinued operations and total net income available to common shareholders for the three and six months ended June 30, 2020 and 2019 (dollars in thousands except per share data): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ Six Months Ended ​ ​ June 30, ​ June 30, ​ ​ 2020 ​ 2019 ​ 2020 ​ 2019 Net Income: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Income from continuing operations ​ $ 30,709 ​ $ 48,908 ​ $ 37,798 ​ $ 84,623 Income (loss) from discontinued operations ​ — ​ (85) ​ — ​ (170) Net income available to common shareholders ​ $ 30,709 ​ $ 48,823 ​ $ 37,798 ​ $ 84,453 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted average shares outstanding, basic ​ 78,712 ​ 82,062 ​ 79,001 ​ 79,283 Dilutive effect of stock awards and warrants ​ 11 ​ 63 ​ 19 ​ 62 Weighted average shares outstanding, diluted ​ 78,723 ​ 82,125 ​ 79,020 ​ 79,345 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Basic EPS: ​ ​ ​ ​ EPS from continuing operations ​ $ 0.39 ​ $ 0.59 ​ $ 0.48 ​ $ 1.06 EPS from discontinued operations ​ — ​ — ​ — ​ — EPS available to common shareholders ​ $ 0.39 ​ $ 0.59 ​ $ 0.48 ​ $ 1.06 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Diluted EPS: ​ ​ ​ ​ EPS from continuing operations ​ $ 0.39 ​ $ 0.59 ​ $ 0.48 ​ $ 1.06 EPS from discontinued operations ​ — ​ — ​ — ​ — EPS available to common shareholders ​ $ 0.39 ​ $ 0.59 ​ $ 0.48 ​ $ 1.06

SEGMENT REPORTING & DISCONTIN_2

SEGMENT REPORTING & DISCONTINUED OPERATIONS (Tables)	6 Months Ended
	Jun. 30, 2020
Segment Reporting [Abstract]
Information About Reportable Segments and Reconciliation	The following table presents summarized operating results of the discontinued mortgage segment for the three and six months ended June 30, 2019 (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ Six Months Ended ​ June 30, 2019 June 30, 2019 Net interest income $ — ​ $ — Provision for credit losses ​ — ​ ​ — Net interest income after provision for credit losses ​ — ​ ​ — Noninterest income ​ — ​ ​ 1 Noninterest expenses ​ 114 ​ ​ 230 Income before income taxes ​ (114) ​ ​ (229) Income tax expense (benefit) ​ (29) ​ ​ (59) Net income (loss) on discontinued operations $ (85) ​ $ (170)

ACCOUNTING POLICIES (Narrative)

ACCOUNTING POLICIES (Narrative) (Details) $ in Thousands	Jun. 09, 2020USD ($)	Feb. 01, 2019USD ($)shares	Jun. 30, 2020USD ($)loan	Jun. 30, 2020USD ($)item	Jun. 30, 2019USD ($)	Dec. 31, 2019USD ($)
Accounting Policies [Line Items]
Number of bank branches | item				149
Number of ATM's | item				170
Goodwill			$ 935,560	$ 935,560		$ 935,560
Cash paid in acquisition				0	$ 12
Issuance of preferred stock			173	173		$ 0
Net proceeds from issuance of preferred stock				166,363	$ 0
Available-for-sale Securities
Accounting Policies [Line Items]
Accrued interest receivable			45,700	45,700
Held-to-maturity Securities
Accounting Policies [Line Items]
Accrued interest receivable			6,800	6,800
Access National Bank
Accounting Policies [Line Items]
Number of shares equivalent to each share of acquired entity | shares		0.75
Company's common shares issued | shares		15,842,026
Cash paid in acquisition		$ 12
Paycheck Protection Program (PPP)
Accounting Policies [Line Items]
Total value loans approved by SBA under the CARES Act			1,800,000	1,800,000
Loans issued under the CARES Act			1,700,000	1,700,000
Loans, recorded investment under the CARES Act			1,600,000	$ 1,600,000
Loan origination fees Under the CARES Act			$ 50,200
Paycheck Protection Program (PPP) | Minimum
Accounting Policies [Line Items]
Number of loans processed under the CARES Act | loan			11,000
Series A Preferred Stock
Accounting Policies [Line Items]
Net proceeds from issuance of preferred stock	$ 166,400

ACCOUNTING POLICIES - New Accou

ACCOUNTING POLICIES - New Accounting Standards (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Mar. 31, 2019	Jun. 30, 2020	Mar. 31, 2020	Jan. 01, 2020	Dec. 31, 2019	Jun. 30, 2019	Dec. 31, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for credit losses on loans		$ 169,977	$ 141,043	$ 89,778	$ 42,294	$ 42,463	$ 41,045
Impact of adoption of new guidance	$ (1,133)
Increase in allowance for credit losses on Purchased with Credit Deterioration (PCD) assets		2,386
Accounting Standards Update 2016-13
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for credit losses				2,400
Impact of adoption of new guidance		$ (39,100)
Restatement Adjustment | Accounting Standards Update 2016-13
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for credit losses on loans				$ 47,484

ACCOUNTING POLICIES - New Acc_2

ACCOUNTING POLICIES - New Accounting Standards (Illustration of the Impact of ASC 326) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Mar. 31, 2020	Jan. 01, 2020	Dec. 31, 2019	Jun. 30, 2019	Dec. 31, 2018
Item Effected [Line Items]
Allowance for credit losses on loans	$ 169,977	$ 141,043	$ 89,778	$ 42,294	$ 42,463	$ 41,045
Total Allowance for credit losses	169,977		94,838	42,294
Previous Accounting Guidance
Item Effected [Line Items]
Allowance for credit losses on loans				42,294
Total Allowance for credit losses				43,194
Accounting Standards Update 2016-13 | Restatement Adjustment
Item Effected [Line Items]
Allowance for credit losses on loans			47,484
Total Allowance for credit losses			51,644
Commercial Portfolio
Item Effected [Line Items]
Allowance for credit losses on loans	111,954	77,843	37,125	30,941
Commercial Portfolio | Previous Accounting Guidance
Item Effected [Line Items]
Allowance for credit losses on loans				30,941
Commercial Portfolio | Accounting Standards Update 2016-13 | Restatement Adjustment
Item Effected [Line Items]
Allowance for credit losses on loans			6,184
Consumer Portfolio
Item Effected [Line Items]
Allowance for credit losses on loans	$ 58,023	$ 63,200	52,653	11,353
Consumer Portfolio | Previous Accounting Guidance
Item Effected [Line Items]
Allowance for credit losses on loans				11,353
Consumer Portfolio | Accounting Standards Update 2016-13 | Restatement Adjustment
Item Effected [Line Items]
Allowance for credit losses on loans			41,300
Unfunded Commitments
Item Effected [Line Items]
Total Allowance for credit losses			5,060
Unfunded Commitments | Previous Accounting Guidance
Item Effected [Line Items]
Total Allowance for credit losses				$ 900
Unfunded Commitments | Accounting Standards Update 2016-13 | Restatement Adjustment
Item Effected [Line Items]
Total Allowance for credit losses			$ 4,160

ACQUISITIONS (Narrative) (Detai

ACQUISITIONS (Narrative) (Details) - USD ($) $ in Thousands	Feb. 01, 2019	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Business Acquisition [Line Items]
Cash paid in acquisition				$ 0	$ 12
Merger-related costs		$ 0	$ 6,371	0	24,493
Access National Bank
Business Acquisition [Line Items]
Number of shares equivalent to each share of acquired entity	0.75
Company's common shares issued	15,842,026
Consideration transferred, fair value	$ 500,000
Cash paid in acquisition	$ 12
Merger-related costs			$ 5,800	$ 0	$ 23,600

SECURITIES (Narrative) (Details

SECURITIES (Narrative) (Details)	6 Months Ended	12 Months Ended
	Jun. 30, 2020USD ($)security	Dec. 31, 2019USD ($)security
Schedule of Investments [Line Items]
Available for sale securities that had been in a continuous loss position for more than 12 months	$ 31,700,000	$ 75,000,000
Available-for-sale securities, continuous unrealized loss position, 12 months or longer, accumulated loss	576,000	696,000
AFS securities in an unrealized loss, credit related impairment	0	$ 0
Available for sale securities past due or non-accrual	0
HTM securities, additional reserve for allowance for credit losses	0
Held to maturity securities, past due	$ 0
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	$ 67,000,000
Federal Home Loan Bank Stock	$ 38,800,000	$ 63,900,000
Available-for-sale Securities
Schedule of Investments [Line Items]
Available for sale securities that had been in a continuous loss position for more than 12 months, Number of issues | security	14	47
Non-agency collateralized mortgage obligations
Schedule of Investments [Line Items]
SSFA rating percentage	20.00%

SECURITIES (Amortized Cost, Gro

SECURITIES (Amortized Cost, Gross Unrealized Gains and Losses, and Estimated Fair Values of Investment Securities) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Debt Securities, Available-for-sale Securities, Amortized Cost Basis [Abstract]
Total AFS securities	$ 1,929,987	$ 1,893,427
Gross Unrealized Gains	93,394	53,918
Gross Unrealized (Losses)	(4,217)	(1,900)
Total AFS securities, Estimated Fair Value	2,019,164	1,945,445
U.S. government and agency securities
Debt Securities, Available-for-sale Securities, Amortized Cost Basis [Abstract]
Total AFS securities	14,198	21,149
Gross Unrealized Gains	505	209
Gross Unrealized (Losses)	(57)	(38)
Total AFS securities, Estimated Fair Value	14,646	21,320
Obligations of states and political subdivisions
Debt Securities, Available-for-sale Securities, Amortized Cost Basis [Abstract]
Total AFS securities	504,866	421,344
Gross Unrealized Gains	34,968	25,776
Gross Unrealized (Losses)	(307)	(29)
Total AFS securities, Estimated Fair Value	539,527	447,091
Corporate and other bonds
Debt Securities, Available-for-sale Securities, Amortized Cost Basis [Abstract]
Total AFS securities	132,489	134,342
Gross Unrealized Gains	1,122	1,991
Gross Unrealized (Losses)	(2,261)	(374)
Total AFS securities, Estimated Fair Value	131,350	135,959
Commercial
Debt Securities, Available-for-sale Securities, Amortized Cost Basis [Abstract]
Total AFS securities	357,974	416,904
Gross Unrealized Gains	18,662	8,786
Gross Unrealized (Losses)	(88)	(643)
Total AFS securities, Estimated Fair Value	376,548	425,047
Commercial | Agency
Debt Securities, Available-for-sale Securities, Amortized Cost Basis [Abstract]
Total AFS securities	337,721	405,731
Gross Unrealized Gains	18,600	8,786
Gross Unrealized (Losses)	(88)	(619)
Total AFS securities, Estimated Fair Value	356,233	413,898
Commercial | Non-agency
Debt Securities, Available-for-sale Securities, Amortized Cost Basis [Abstract]
Total AFS securities	20,253	11,173
Gross Unrealized Gains	62
Gross Unrealized (Losses)		(24)
Total AFS securities, Estimated Fair Value	20,315	11,149
Residential
Debt Securities, Available-for-sale Securities, Amortized Cost Basis [Abstract]
Total AFS securities	917,361	896,609
Gross Unrealized Gains	38,137	17,156
Gross Unrealized (Losses)	(1,504)	(816)
Total AFS securities, Estimated Fair Value	953,994	912,949
Residential | Agency
Debt Securities, Available-for-sale Securities, Amortized Cost Basis [Abstract]
Total AFS securities	841,571	852,300
Gross Unrealized Gains	37,643	16,680
Gross Unrealized (Losses)	(415)	(816)
Total AFS securities, Estimated Fair Value	878,799	868,164
Residential | Non-agency
Debt Securities, Available-for-sale Securities, Amortized Cost Basis [Abstract]
Total AFS securities	75,790	44,309
Gross Unrealized Gains	494	476
Gross Unrealized (Losses)	(1,089)
Total AFS securities, Estimated Fair Value	75,195	44,785
Other securities
Debt Securities, Available-for-sale Securities, Amortized Cost Basis [Abstract]
Total AFS securities	3,099	3,079
Gross Unrealized Gains	0	0
Gross Unrealized (Losses)	0	0
Total AFS securities, Estimated Fair Value	$ 3,099	$ 3,079

SECURITIES (Schedule of Gross U

SECURITIES (Schedule of Gross Unrealized Losses and Fair Value of Investments) (Details) - USD ($)	Jun. 30, 2020	Dec. 31, 2019
Debt and Equity Securities, FV-NI [Line Items]
Less than 12 months, Fair Value	$ 226,851,000	$ 198,348,000
Less than 12 Months, Unrealized Losses	(3,641,000)	(1,204,000)
More than 12 Months, Fair Value	31,703,000	75,035,000
More than 12 Months, Unrealized Losses	(576,000)	(696,000)
Total, Fair Value	258,554,000	273,383,000
Unrealized Losses, Total	(4,217,000)	(1,900,000)
U.S. government and agency securities
Debt and Equity Securities, FV-NI [Line Items]
Less than 12 months, Fair Value	3,771,000	7,638,000
Less than 12 Months, Unrealized Losses	(28,000)	(38,000)
More than 12 Months, Fair Value	2,444,000	0
More than 12 Months, Unrealized Losses	(29,000)	0
Total, Fair Value	6,215,000	7,638,000
Unrealized Losses, Total	(57,000)	(38,000)
Obligations of states and political subdivisions
Debt and Equity Securities, FV-NI [Line Items]
Less than 12 months, Fair Value	48,653,000	4,526,000
Less than 12 Months, Unrealized Losses	(307,000)	(29,000)
More than 12 Months, Fair Value	0	0
More than 12 Months, Unrealized Losses	0	0
Total, Fair Value	48,653,000	4,526,000
Unrealized Losses, Total	(307,000)	(29,000)
Corporate and other bonds
Debt and Equity Securities, FV-NI [Line Items]
Less than 12 months, Fair Value	76,760,000	17,323,000
Less than 12 Months, Unrealized Losses	(1,739,000)	(83,000)
More than 12 Months, Fair Value	19,515,000	19,901,000
More than 12 Months, Unrealized Losses	(522,000)	(291,000)
Total, Fair Value	96,275,000	37,224,000
Unrealized Losses, Total	(2,261,000)	(374,000)
Commercial
Debt and Equity Securities, FV-NI [Line Items]
Less than 12 months, Fair Value	11,086,000	54,714,000
Less than 12 Months, Unrealized Losses	(88,000)	(554,000)
More than 12 Months, Fair Value	0	14,966,000
More than 12 Months, Unrealized Losses	0	(89,000)
Total, Fair Value	11,086,000	69,680,000
Unrealized Losses, Total	(88,000)	(643,000)
Residential
Debt and Equity Securities, FV-NI [Line Items]
Less than 12 months, Fair Value	86,581,000	114,147,000
Less than 12 Months, Unrealized Losses	(1,479,000)	(500,000)
More than 12 Months, Fair Value	9,744,000	40,168,000
More than 12 Months, Unrealized Losses	(25,000)	(316,000)
Total, Fair Value	96,325,000	154,315,000
Unrealized Losses, Total	(1,504,000)	(816,000)
Agency | Commercial
Debt and Equity Securities, FV-NI [Line Items]
Less than 12 months, Fair Value	11,086,000	43,552,000
Less than 12 Months, Unrealized Losses	(88,000)	(530,000)
More than 12 Months, Fair Value	0	14,966,000
More than 12 Months, Unrealized Losses	0	(89,000)
Total, Fair Value	11,086,000	58,518,000
Unrealized Losses, Total	(88,000)	(619,000)
Agency | Residential
Debt and Equity Securities, FV-NI [Line Items]
Less than 12 months, Fair Value	40,939,000	114,147,000
Less than 12 Months, Unrealized Losses	(390,000)	(500,000)
More than 12 Months, Fair Value	9,744,000	40,168,000
More than 12 Months, Unrealized Losses	(25,000)	(316,000)
Total, Fair Value	50,683,000	154,315,000
Unrealized Losses, Total	(415,000)	(816,000)
Non-agency | Commercial
Debt and Equity Securities, FV-NI [Line Items]
Less than 12 months, Fair Value	0	11,162,000
Less than 12 Months, Unrealized Losses	0	(24,000)
More than 12 Months, Fair Value	0	0
More than 12 Months, Unrealized Losses	0	0
Total, Fair Value	0	11,162,000
Unrealized Losses, Total	0	(24,000)
Non-agency | Residential
Debt and Equity Securities, FV-NI [Line Items]
Less than 12 months, Fair Value	45,642,000	0
Less than 12 Months, Unrealized Losses	(1,089,000)	0
More than 12 Months, Fair Value	0	0
More than 12 Months, Unrealized Losses	0	0
Total, Fair Value	45,642,000	0
Unrealized Losses, Total	$ (1,089,000)	$ 0

SECURITIES (Amortized Cost of A

SECURITIES (Amortized Cost of AFS Securities by Security Type and Credit Rating) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Debt Securities, Available-for-sale, Allowance for Credit Loss [Line Items]
AFS Securities, Amortized Cost	$ 1,929,987	$ 1,893,427
U.S. government and agency securities
Debt Securities, Available-for-sale, Allowance for Credit Loss [Line Items]
AFS Securities, Amortized Cost	14,198	21,149
Obligations of states and political subdivisions
Debt Securities, Available-for-sale, Allowance for Credit Loss [Line Items]
AFS Securities, Amortized Cost	504,866	421,344
Corporate and other bonds
Debt Securities, Available-for-sale, Allowance for Credit Loss [Line Items]
AFS Securities, Amortized Cost	132,489	134,342
Other securities
Debt Securities, Available-for-sale, Allowance for Credit Loss [Line Items]
AFS Securities, Amortized Cost	$ 3,099	$ 3,079

SECURITIES (Schedule of Amortiz

SECURITIES (Schedule of Amortized Cost and Estimated Fair Value of Securities) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
AFS Securities [Abstract]
Due in one year or less, Amortized Cost	$ 27,404	$ 35,177
Due in one year or less, Estimated Fair Value	27,621	35,329
Due after one year through five years, Amortized Cost	148,289	164,605
Due after one year through five years, Estimated Fair Value	155,504	166,873
Due after five years through ten years, Amortized Cost	233,029	249,713
Due after five years through ten years, Estimated Fair Value	237,974	254,790
Due after ten years, Amortized Cost	1,521,265	1,443,932
Due after ten years, Estimated Fair Value	1,598,065	1,488,453
Total AFS securities	1,929,987	1,893,427
Total AFS securities, Estimated Fair Value	2,019,164	1,945,445
HTM Securities [Abstract]
Due in one year or less, Carrying Value	1,007	502
Due in one year or less, Estimated Fair Value	1,028	504
Due after one year through five years, Carrying Value	9,133	10,258
Due after one year through five years, Estimated Fair Value	9,490	10,539
Due after five years through ten years, Carrying Value	1,754	1,768
Due after five years through ten years, Estimated Fair Value	1,777	1,800
Due after ten years, Carrying Value	535,667	542,616
Due after ten years, Estimated Fair Value	601,134	590,660
Total HTM Securities	547,561	555,144
Total HTM securities, Estimated Fair Value	$ 613,429	$ 603,503

SECURITIES (Schedule of Carryin

SECURITIES (Schedule of Carrying Value, Gross Unrealized Gains and Losses and Estimated Fair Value of Securities) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Schedule of Held-to-maturity Securities [Line Items]
Total HTM Securities	$ 547,561	$ 555,144
Gross Unrealized Gains	65,945	48,359
Gross Unrealized Losses	(77)	0
Held-to-maturity Securities, Fair Value	613,429	603,503
U.S. government and agency securities
Schedule of Held-to-maturity Securities [Line Items]
Total HTM Securities	2,781	2,813
Gross Unrealized Gains	0	26
Gross Unrealized Losses	(27)	0
Held-to-maturity Securities, Fair Value	2,754	2,839
Obligations of states and political subdivisions
Schedule of Held-to-maturity Securities [Line Items]
Total HTM Securities	539,187	545,148
Gross Unrealized Gains	65,944	48,274
Gross Unrealized Losses	0	0
Held-to-maturity Securities, Fair Value	605,131	593,422
Commercial
Schedule of Held-to-maturity Securities [Line Items]
Total HTM Securities	5,593	7,183
Gross Unrealized Gains	1	59
Gross Unrealized Losses	(50)	0
Held-to-maturity Securities, Fair Value	5,544	7,242
Agency | Commercial
Schedule of Held-to-maturity Securities [Line Items]
Total HTM Securities	5,593	7,183
Gross Unrealized Gains	1	59
Gross Unrealized Losses	(50)	0
Held-to-maturity Securities, Fair Value	5,544	7,242
Non-agency | Commercial
Schedule of Held-to-maturity Securities [Line Items]
Total HTM Securities	0	0
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Held-to-maturity Securities, Fair Value	$ 0	$ 0

SECURITIES (Amortized Cost of H

SECURITIES (Amortized Cost of HTM Securities by Security Type and Credit Rating) (Details) $ in Thousands	Jun. 30, 2020USD ($)
HTM Securities, Amortized Cost	$ 547,561
Moody's AAA/AA/A | Standard & Poor's AAA/AA/A
HTM Securities, Amortized Cost	534,577
Moody's Not Rated - Agency [Member] | Standard Poors Not Rated - Agency [Member]
HTM Securities, Amortized Cost	8,374
Moody's Not Rated - Non-Agency [Member] | Standard Poors Not Rated - Non-Agency [Member]
HTM Securities, Amortized Cost	4,610
U.S. government and agency securities
HTM Securities, Amortized Cost	2,781
U.S. government and agency securities | Moody's AAA/AA/A | Standard & Poor's AAA/AA/A
HTM Securities, Amortized Cost	0
U.S. government and agency securities | Moody's Not Rated - Agency [Member] | Standard Poors Not Rated - Agency [Member]
HTM Securities, Amortized Cost	2,781
U.S. government and agency securities | Moody's Not Rated - Non-Agency [Member] | Standard Poors Not Rated - Non-Agency [Member]
HTM Securities, Amortized Cost	0
Obligations of states and political subdivisions
HTM Securities, Amortized Cost	539,187
Obligations of states and political subdivisions | Moody's AAA/AA/A | Standard & Poor's AAA/AA/A
HTM Securities, Amortized Cost	534,577
Obligations of states and political subdivisions | Moody's Not Rated - Agency [Member] | Standard Poors Not Rated - Agency [Member]
HTM Securities, Amortized Cost	0
Obligations of states and political subdivisions | Moody's Not Rated - Non-Agency [Member] | Standard Poors Not Rated - Non-Agency [Member]
HTM Securities, Amortized Cost	4,610
Total mortgage-back securities
HTM Securities, Amortized Cost	5,593
Total mortgage-back securities | Moody's AAA/AA/A | Standard & Poor's AAA/AA/A
HTM Securities, Amortized Cost	0
Total mortgage-back securities | Moody's Not Rated - Agency [Member] | Standard Poors Not Rated - Agency [Member]
HTM Securities, Amortized Cost	5,593
Total mortgage-back securities | Moody's Not Rated - Non-Agency [Member] | Standard Poors Not Rated - Non-Agency [Member]
HTM Securities, Amortized Cost	$ 0

SECURITIES (Gross Realized Gain

SECURITIES (Gross Realized Gains and Losses on the Sale of Securities) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Securities [Abstract]
Gross realized gains	$ 10,339	$ 844	$ 12,503	$ 2,057
Gross realized losses	0	(793)	(228)	(1,855)
Gains on securities transactions, net	10,339	51	12,275	202
Proceeds from sales of securities	$ 107,570	$ 179,701	$ 228,271	$ 387,950

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	Jun. 30, 2020	Jan. 01, 2020	Dec. 31, 2019
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment, net of deferred fees and costs	$ 14,308,646		$ 12,610,936
Total Allowance for credit losses	(169,977)	$ (94,838)	(42,294)
Total loans held for investment, net	14,138,669		12,568,642
Loans, recorded investment under the Cares Act	14,138,669		12,568,642
Construction and Land Development
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment, net of deferred fees and costs	1,247,939		1,250,924
Commercial Real Estate - Owner Occupied
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment, net of deferred fees and costs	2,067,087		2,041,243
Commercial Real Estate - Non-Owner Occupied
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment, net of deferred fees and costs	3,455,125		3,286,098
Multifamily Real Estate
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment, net of deferred fees and costs	717,719		633,743
Commercial and Industrial
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment, net of deferred fees and costs	3,555,971		2,114,033
Residential 1-4 Family - Commercial
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment, net of deferred fees and costs	715,384		724,337
Residential 1-4 Family - Consumer
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment, net of deferred fees and costs	841,051		890,503
Residential 1-4 Family - Revolving
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment, net of deferred fees and costs	627,765		659,504
Auto
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment, net of deferred fees and costs	380,053		350,419
Consumer
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment, net of deferred fees and costs	311,362		372,853
Other Commercial
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment, net of deferred fees and costs	389,190		$ 287,279
Paycheck Protection Program (PPP)
Loans and Leases Receivable Disclosure [Line Items]
Total loans held for investment, net	1,600,000
Loans, recorded investment under the Cares Act	1,600,000
Paycheck Protection Program (PPP) | Commercial and Industrial
Loans and Leases Receivable Disclosure [Line Items]
Total loans held for investment, net	1,600,000
Loans, recorded investment under the Cares Act	1,600,000
Paycheck Protection Program (PPP) | Other Commercial
Loans and Leases Receivable Disclosure [Line Items]
Total loans held for investment, net	20,300
Loans, recorded investment under the Cares Act	$ 20,300

LOANS AND ALLOWANCE FOR LOAN _4

LOANS AND ALLOWANCE FOR LOAN LOSSES (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Jan. 01, 2020	Dec. 31, 2019	Jun. 30, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	$ 39,624	$ 39,624		$ 45,204	$ 28,232
Nonaccrual interest income	0	$ 0
Period for restructured loan to be considered default		90 days
Acquired performing loan portfolio	14,308,646	$ 14,308,646			12,610,936
Allowance for credit losses on loans	169,977	169,977	$ 141,043	89,778	42,294	$ 42,463	$ 41,045
Troubled Debt Restructurings (TDRs)	20,345	20,345			19,496
Total Allowance for credit losses	169,977	169,977		$ 94,838	42,294
Loans, recorded investment under the Cares Act	14,138,669	14,138,669			12,568,642
Troubled Debt Restructurings [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled Debt Restructurings (TDRs)	20,300	20,300
Total Allowance for credit losses	1,900	1,900
Acquired Performing Loan Portfolio
Accounts, Notes, Loans and Financing Receivable [Line Items]
Acquired performing loan portfolio					3,000,000
Remaining discount on acquired loans					50,100
Purchased Impaired
Accounts, Notes, Loans and Financing Receivable [Line Items]
Acquired performing loan portfolio	73,200	73,200			86,681
Allowance for credit losses on loans	4,500	4,500			217
Purchased impaired loans (gross)					$ 104,900
Paycheck Protection Program (PPP)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, recorded investment under the Cares Act	$ 1,600,000	$ 1,600,000

LOANS AND ALLOWANCE FOR LOAN _5

LOANS AND ALLOWANCE FOR LOAN LOSSES (Summary of Aging of the Loan Portfolio by Class) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Jan. 01, 2020	Dec. 31, 2019
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	$ 14,228,554		$ 12,419,378
Greater Than 90 Days and Still Accruing	19,255		13,396
Nonaccrual	39,624	$ 45,204	28,232
Total Loans	14,308,646		12,610,936
30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	12,003		50,453
60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	9,210		12,796
Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current			70,267
Total Loans	73,200		86,681
Purchased Impaired | 30-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due			3,221
Purchased Impaired | 90+ Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due			13,193
Construction and Land Development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	1,241,512		1,231,043
Greater Than 90 Days and Still Accruing	473		189
Nonaccrual	3,977	4,060	3,703
Total Loans	1,247,939		1,250,924
Construction and Land Development | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	1,683		4,563
Construction and Land Development | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	294		482
Construction and Land Development | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current			10,465
Total Loans			10,944
Construction and Land Development | Purchased Impaired | 30-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due			136
Construction and Land Development | Purchased Impaired | 90+ Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due			343
Commercial Real Estate - Owner Occupied
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	2,048,203		2,001,074
Greater Than 90 Days and Still Accruing	7,851		1,062
Nonaccrual	8,924	13,889	6,003
Total Loans	2,067,087		2,041,243
Commercial Real Estate - Owner Occupied | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	1,679		3,482
Commercial Real Estate - Owner Occupied | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	430		2,184
Commercial Real Estate - Owner Occupied | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current			20,074
Total Loans			27,438
Commercial Real Estate - Owner Occupied | Purchased Impaired | 30-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due			480
Commercial Real Estate - Owner Occupied | Purchased Impaired | 90+ Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due			6,884
Commercial Real Estate - Non-Owner Occupied
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	3,451,071		3,269,244
Greater Than 90 Days and Still Accruing	878		1,451
Nonaccrual	1,877	1,368	381
Total Loans	3,455,125		3,286,098
Commercial Real Estate - Non-Owner Occupied | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	930		457
Commercial Real Estate - Non-Owner Occupied | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	369		0
Commercial Real Estate - Non-Owner Occupied | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current			12,730
Total Loans			14,565
Commercial Real Estate - Non-Owner Occupied | Purchased Impaired | 30-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due			848
Commercial Real Estate - Non-Owner Occupied | Purchased Impaired | 90+ Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due			987
Multifamily Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	717,320		632,952
Greater Than 90 Days and Still Accruing	366		474
Nonaccrual	33	0	0
Total Loans	717,719		633,743
Multifamily Real Estate | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due			223
Multifamily Real Estate | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due			0
Multifamily Real Estate | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current			94
Total Loans			94
Multifamily Real Estate | Purchased Impaired | 30-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due			0
Multifamily Real Estate | Purchased Impaired | 90+ Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due			0
Commercial and Industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	3,551,187		2,099,974
Greater Than 90 Days and Still Accruing	178		449
Nonaccrual	2,708	3,037	1,735
Total Loans	3,555,971		2,114,033
Commercial and Industrial | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	1,602		8,698
Commercial and Industrial | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	296		1,598
Commercial and Industrial | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current			590
Total Loans			1,579
Commercial and Industrial | Purchased Impaired | 90+ Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due			989
Residential 1-4 Family - Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	706,437		703,471
Greater Than 90 Days and Still Accruing	578		674
Nonaccrual	5,784	6,492	4,301
Total Loans	715,384		724,337
Residential 1-4 Family - Commercial | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	480		1,479
Residential 1-4 Family - Commercial | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	2,105		2,207
Residential 1-4 Family - Commercial | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current			9,667
Total Loans			12,205
Residential 1-4 Family - Commercial | Purchased Impaired | 30-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due			543
Residential 1-4 Family - Commercial | Purchased Impaired | 90+ Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due			1,995
Residential 1-4 Family - Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	818,877		842,667
Greater Than 90 Days and Still Accruing	5,099		4,515
Nonaccrual	12,029	13,117	9,292
Total Loans	841,051		890,503
Residential 1-4 Family - Consumer | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	1,229		16,244
Total Loans	1,229
Residential 1-4 Family - Consumer | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	3,817		3,072
Total Loans	3,817
Residential 1-4 Family - Consumer | 90+ Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	5,099
Residential 1-4 Family - Consumer | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current			12,005
Total Loans			14,713
Residential 1-4 Family - Consumer | Purchased Impaired | 30-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due			927
Residential 1-4 Family - Consumer | Purchased Impaired | 90+ Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due			1,781
Residential 1-4 Family - Revolving
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	619,172		637,966
Greater Than 90 Days and Still Accruing	1,995		3,357
Nonaccrual	3,626	2,490	2,080
Total Loans	627,765		659,504
Residential 1-4 Family - Revolving | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	1,924		10,190
Total Loans	1,924
Residential 1-4 Family - Revolving | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	1,048		1,784
Total Loans	1,048
Residential 1-4 Family - Revolving | 90+ Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	1,995
Residential 1-4 Family - Revolving | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current			3,635
Total Loans			4,127
Residential 1-4 Family - Revolving | Purchased Impaired | 30-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due			287
Residential 1-4 Family - Revolving | Purchased Impaired | 90+ Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due			205
Auto
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	377,822		346,819
Greater Than 90 Days and Still Accruing	181		272
Nonaccrual	584	565	563
Total Loans	380,053		350,419
Auto | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	1,176		2,525
Total Loans	1,176
Auto | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	290		236
Total Loans	290
Auto | 90+ Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	181
Auto | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current			4
Total Loans			4
Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	308,719		367,794
Greater Than 90 Days and Still Accruing	1,157		953
Nonaccrual	81	88	77
Total Loans	311,362		372,853
Consumer | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	844		2,128
Total Loans	844
Consumer | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	561		1,233
Total Loans	561
Consumer | 90+ Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	1,157
Consumer | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current			659
Total Loans			668
Consumer | Purchased Impaired | 90+ Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due			9
Other Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	388,234		286,374
Greater Than 90 Days and Still Accruing	499		0
Nonaccrual	1	$ 98	97
Total Loans	389,190		287,279
Other Commercial | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	$ 456		464
Other Commercial | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due			0
Other Commercial | Purchased Impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current			344
Total Loans			344
Other Commercial | Purchased Impaired | 30-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due			0
Other Commercial | Purchased Impaired | 90+ Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due			$ 0

LOANS AND ALLOWANCE FOR LOAN _6

LOANS AND ALLOWANCE FOR LOAN LOSSES (Summary of Loans on Nonaccrual Status) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Jan. 01, 2020	Dec. 31, 2019
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	$ 39,624	$ 45,204	$ 28,232
Nonaccrual With No Allowance For Credit Losses	6,844
Loans Past Due Over 89 Days Still Accruing	19,255		13,396
Construction and Land Development
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	3,977	4,060	3,703
Nonaccrual With No Allowance For Credit Losses	1,987
Loans Past Due Over 89 Days Still Accruing	473		189
Commercial Real Estate - Owner Occupied
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	8,924	13,889	6,003
Nonaccrual With No Allowance For Credit Losses	1,990
Loans Past Due Over 89 Days Still Accruing	7,851		1,062
Commercial Real Estate - Non-Owner Occupied
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	1,877	1,368	381
Nonaccrual With No Allowance For Credit Losses	0
Loans Past Due Over 89 Days Still Accruing	878		1,451
Multifamily Real Estate
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	33	0	0
Nonaccrual With No Allowance For Credit Losses	0
Loans Past Due Over 89 Days Still Accruing	366		474
Commercial and Industrial
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	2,708	3,037	1,735
Nonaccrual With No Allowance For Credit Losses	0
Loans Past Due Over 89 Days Still Accruing	178		449
Residential 1-4 Family - Commercial
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	5,784	6,492	4,301
Nonaccrual With No Allowance For Credit Losses	1,738
Loans Past Due Over 89 Days Still Accruing	578		674
Residential 1-4 Family - Consumer
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	12,029	13,117	9,292
Nonaccrual With No Allowance For Credit Losses	1,069
Loans Past Due Over 89 Days Still Accruing	5,099		4,515
Residential 1-4 Family - Revolving
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	3,626	2,490	2,080
Nonaccrual With No Allowance For Credit Losses	60
Loans Past Due Over 89 Days Still Accruing	1,995		3,357
Auto
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	584	565	563
Nonaccrual With No Allowance For Credit Losses	0
Loans Past Due Over 89 Days Still Accruing	181		272
Consumer
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	81	88	77
Nonaccrual With No Allowance For Credit Losses	0
Loans Past Due Over 89 Days Still Accruing	1,157		953
Other Commercial
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	1	$ 98	97
Nonaccrual With No Allowance For Credit Losses	0
Loans Past Due Over 89 Days Still Accruing	$ 499		$ 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	3 Months Ended	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2019	Dec. 31, 2019
Recorded Investment
Loans without a specific allowance			$ 35,185
Loans with a specific allowance			23,938
Total impaired loans			59,123
Unpaid Principal Balance
Loans without a specific allowance			38,655
Loans with a specific allowance			25,738
Total impaired loans			64,393
Related Allowance			3,027
Average Investment	$ 60,489	$ 60,813
Interest Income Recognized	317	772
Construction and Land Development
Recorded Investment
Loans without a specific allowance			5,877
Loans with a specific allowance			984
Unpaid Principal Balance
Loans without a specific allowance			7,174
Loans with a specific allowance			1,032
Related Allowance			49
Average Investment	7,811	8,167
Interest Income Recognized	13	54
Commercial Real Estate - Owner Occupied
Recorded Investment
Loans without a specific allowance			8,801
Loans with a specific allowance			2,820
Unpaid Principal Balance
Loans without a specific allowance			9,296
Loans with a specific allowance			3,093
Related Allowance			146
Average Investment	12,002	12,030
Interest Income Recognized	91	200
Commercial Real Estate - Non-Owner Occupied
Recorded Investment
Loans without a specific allowance			3,510
Loans with a specific allowance			335
Unpaid Principal Balance
Loans without a specific allowance			4,059
Loans with a specific allowance			383
Related Allowance			2
Average Investment	6,931	6,944
Interest Income Recognized	60	119
Commercial and Industrial
Recorded Investment
Loans without a specific allowance			3,668
Loans with a specific allowance			2,568
Unpaid Principal Balance
Loans without a specific allowance			3,933
Loans with a specific allowance			2,590
Related Allowance			619
Average Investment	3,038	3,081
Interest Income Recognized	27	59
Residential 1-4 Family - Commercial
Recorded Investment
Loans without a specific allowance			4,047
Loans with a specific allowance			1,726
Unpaid Principal Balance
Loans without a specific allowance			4,310
Loans with a specific allowance			1,819
Related Allowance			162
Average Investment	6,125	5,848
Interest Income Recognized	29	56
Residential 1-4 Family - Consumer
Recorded Investment
Loans without a specific allowance			8,420
Loans with a specific allowance			12,026
Unpaid Principal Balance
Loans without a specific allowance			9,018
Loans with a specific allowance			12,670
Related Allowance			1,242
Average Investment	19,830	19,939
Interest Income Recognized	50	187
Residential 1-4 Family - Revolving
Recorded Investment
Loans without a specific allowance			862
Loans with a specific allowance			2,186
Unpaid Principal Balance
Loans without a specific allowance			865
Loans with a specific allowance			2,369
Related Allowance			510
Average Investment	493	520
Interest Income Recognized		1
Auto
Recorded Investment
Loans with a specific allowance			563
Unpaid Principal Balance
Loans with a specific allowance			879
Related Allowance			221
Average Investment	3,489	3,506
Interest Income Recognized	38	78
Consumer
Recorded Investment
Loans with a specific allowance			168
Unpaid Principal Balance
Loans with a specific allowance			336
Related Allowance			46
Average Investment	191	195
Interest Income Recognized	2	3
Other Commercial
Recorded Investment
Loans with a specific allowance			562
Unpaid Principal Balance
Loans with a specific allowance			567
Related Allowance			$ 30
Average Investment	579	583
Interest Income Recognized	$ 7	$ 15

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	Jun. 30, 2020USD ($)	Dec. 31, 2019USD ($)loan
Financing Receivable, Modifications [Line Items]
No. of Loans	136	120
Recorded Investment	$ 20,345	$ 19,496
Outstanding Commitment	$ 26	$ 26
Performing
Financing Receivable, Modifications [Line Items]
No. of Loans	107	96
Recorded Investment	$ 15,303	$ 15,686
Outstanding Commitment	$ 26	$ 26
Performing | Construction and Land Development
Financing Receivable, Modifications [Line Items]
No. of Loans	4	4
Recorded Investment	$ 222	$ 1,114
Outstanding Commitment	$ 0	$ 0
Performing | Commercial Real Estate - Owner Occupied
Financing Receivable, Modifications [Line Items]
No. of Loans	6	6
Recorded Investment	$ 2,218	$ 2,228
Outstanding Commitment	$ 26	$ 26
Performing | Commercial Real Estate - Non-Owner Occupied
Financing Receivable, Modifications [Line Items]
No. of Loans	1	1
Recorded Investment	$ 1,089	$ 1,089
Outstanding Commitment	$ 0	$ 0
Performing | Commercial and Industrial
Financing Receivable, Modifications [Line Items]
No. of Loans	5	4
Recorded Investment	$ 1,129	$ 1,020
Outstanding Commitment	$ 0	$ 0
Performing | Residential 1-4 Family - Commercial
Financing Receivable, Modifications [Line Items]
No. of Loans	4	5
Recorded Investment	$ 214	$ 290
Outstanding Commitment	$ 0	$ 0
Performing | Residential 1-4 Family - Consumer
Financing Receivable, Modifications [Line Items]
No. of Loans	79	69
Recorded Investment	$ 9,886	$ 9,396
Outstanding Commitment	$ 0	$ 0
Performing | Residential 1-4 Family - Revolving
Financing Receivable, Modifications [Line Items]
No. of Loans	2	2
Recorded Investment	$ 55	$ 56
Outstanding Commitment	$ 0	$ 0
Performing | Consumer
Financing Receivable, Modifications [Line Items]
No. of Loans	5	4
Recorded Investment	$ 34	$ 29
Outstanding Commitment	$ 0	$ 0
Performing | Other Commercial
Financing Receivable, Modifications [Line Items]
No. of Loans	1	1
Recorded Investment	$ 456	$ 464
Outstanding Commitment	$ 0	$ 0
Nonperforming
Financing Receivable, Modifications [Line Items]
No. of Loans	29	24
Recorded Investment	$ 5,042	$ 3,810
Outstanding Commitment	$ 0	$ 0
Nonperforming | Commercial Real Estate - Owner Occupied
Financing Receivable, Modifications [Line Items]
No. of Loans	2	2
Recorded Investment	$ 165	$ 176
Outstanding Commitment	$ 0	$ 0
Nonperforming | Commercial and Industrial
Financing Receivable, Modifications [Line Items]
No. of Loans	2	1
Recorded Investment	$ 128	$ 55
Outstanding Commitment	$ 0	$ 0
Nonperforming | Residential 1-4 Family - Commercial
Financing Receivable, Modifications [Line Items]
No. of Loans	1
Recorded Investment	$ 71
Outstanding Commitment	$ 0
Nonperforming | Residential 1-4 Family - Consumer
Financing Receivable, Modifications [Line Items]
No. of Loans	21	19
Recorded Investment	$ 4,572	$ 3,522
Outstanding Commitment	$ 0	$ 0
Nonperforming | Residential 1-4 Family - Revolving
Financing Receivable, Modifications [Line Items]
No. of Loans	3	2
Recorded Investment	$ 106	$ 57
Outstanding Commitment	$ 0	$ 0

LOANS AND ALLOWANCE FOR LOAN _9

LOANS AND ALLOWANCE FOR LOAN LOSSES (Schedule of TDR by Class and Modification Type) (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020USD ($)loan	Jun. 30, 2019USD ($)loan	Jun. 30, 2020USD ($)loan	Jun. 30, 2019USD ($)loan
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	12	10	23	20
Recorded Investment at Period End | $	$ 913	$ 526	$ 2,713	$ 1,798
Term modification, at a market rate
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	8	1	8	5
Recorded Investment at Period End | $	$ 689	$ 43	$ 689	$ 382
Term modification, below market rate
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	4	9	15	15
Recorded Investment at Period End | $	$ 224	$ 483	$ 2,024	$ 1,416
Interest rate modification, below market rate
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	0		0
Recorded Investment at Period End | $	$ 0		$ 0
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, below market rate
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	0		1
Recorded Investment at Period End | $	$ 0		$ 35
Commercial and Industrial | Term modification, at a market rate
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	4		4
Recorded Investment at Period End | $	$ 353		$ 353
Residential 1-4 Family - Commercial | Term modification, at a market rate
Financing Receivable, Modifications [Line Items]
No. of Loans | loan				1
Recorded Investment at Period End | $				$ 74
Residential 1-4 Family - Consumer | Term modification, at a market rate
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	3	1	3	3
Recorded Investment at Period End | $	$ 326	$ 43	$ 326	$ 299
Residential 1-4 Family - Consumer | Term modification, below market rate
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	3	9	13	14
Recorded Investment at Period End | $	$ 172	$ 483	$ 1,937	$ 1,410
Residential 1-4 Family - Revolving | Term modification, below market rate
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	1		1
Recorded Investment at Period End | $	$ 52		$ 52
Consumer | Term modification, at a market rate
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	1		1	1
Recorded Investment at Period End | $	$ 10		$ 10	$ 9
Consumer | Term modification, below market rate
Financing Receivable, Modifications [Line Items]
No. of Loans | loan				1
Recorded Investment at Period End | $				$ 6

LOANS AND ALLOWANCE FOR LOAN_10

LOANS AND ALLOWANCE FOR LOAN LOSSES (Allowance for Loan Loss Activity, by Portfolio Segment, Balances for Allowance for Credit Losses, and Loans Based on Impairment Methodology) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jan. 01, 2020	Dec. 31, 2019
Allowance for loan losses:
Balance, beginning of the year	$ 141,043	$ 42,294	$ 41,045
Impact of ASC 326 adoption on non-PCD loans				$ 45,098
Impact of ASC 326 adoption on PCD loans		2,386
Impact of ASC 326 adoption		47,484
Loans charged off	(4,677)	(11,828)	(11,873)
Recoveries credited to allowance	1,411	3,571	3,366
Provision charged to operations	32,200	88,456	9,925
Balance, end of period	169,977	169,977	42,463
Loans:
Loans individually evaluated for impairment						$ 59,123
ALLL individually evaluated for impairment						3,027
Loans collectively evaluated for impairment						12,465,132
ALLL collectively evaluated for impairment						39,050
Total Loans				14,308,646		12,610,936
Total ALLL	169,977	169,977	42,463	169,977	$ 89,778	42,294
Purchased Impaired
Allowance for loan losses:
Balance, beginning of the year		217
Balance, end of period	4,500	4,500
Loans:
Total Loans				73,200		86,681
Total ALLL	4,500	217		4,500		217
Construction and Land Development
Allowance for loan losses:
Balance, beginning of the year		5,758	6,803
Loans charged off			(800)
Recoveries credited to allowance			97
Provision charged to operations			(101)
Balance, end of period			5,999
Loans:
Loans individually evaluated for impairment						6,861
ALLL individually evaluated for impairment						49
Loans collectively evaluated for impairment						1,233,119
ALLL collectively evaluated for impairment						5,709
Total Loans				1,247,939		1,250,924
Total ALLL		5,758	5,999			5,758
Construction and Land Development | Purchased Impaired
Allowance for loan losses:
Balance, beginning of the year		0
Loans:
Total Loans						10,944
Total ALLL		0				0
Commercial Real Estate - Owner Occupied
Allowance for loan losses:
Balance, beginning of the year		3,919	4,023
Loans charged off			(231)
Recoveries credited to allowance			54
Provision charged to operations			235
Balance, end of period			4,081
Loans:
Loans individually evaluated for impairment						11,621
ALLL individually evaluated for impairment						146
Loans collectively evaluated for impairment						2,002,184
ALLL collectively evaluated for impairment						3,773
Total Loans				2,067,087		2,041,243
Total ALLL		3,919	4,081			3,919
Commercial Real Estate - Owner Occupied | Purchased Impaired
Allowance for loan losses:
Balance, beginning of the year		0
Loans:
Total Loans						27,438
Total ALLL		0				0
Commercial Real Estate - Non-Owner Occupied
Allowance for loan losses:
Balance, beginning of the year		9,543	8,865
Loans charged off			0
Recoveries credited to allowance			92
Provision charged to operations			654
Balance, end of period			9,611
Loans:
Loans individually evaluated for impairment						3,845
ALLL individually evaluated for impairment						2
Loans collectively evaluated for impairment						3,267,688
ALLL collectively evaluated for impairment						9,541
Total Loans				3,455,125		3,286,098
Total ALLL		9,543	9,611			9,543
Commercial Real Estate - Non-Owner Occupied | Purchased Impaired
Allowance for loan losses:
Balance, beginning of the year		0
Loans:
Total Loans						14,565
Total ALLL		0				0
Multifamily Real Estate
Allowance for loan losses:
Balance, beginning of the year		632	649
Loans charged off			0
Recoveries credited to allowance			85
Provision charged to operations			(70)
Balance, end of period			664
Loans:
Loans individually evaluated for impairment						0
ALLL individually evaluated for impairment						0
Loans collectively evaluated for impairment						633,649
ALLL collectively evaluated for impairment						632
Total Loans				717,719		633,743
Total ALLL		632	664			632
Multifamily Real Estate | Purchased Impaired
Allowance for loan losses:
Balance, beginning of the year		0
Loans:
Total Loans						94
Total ALLL		0				0
Commercial and Industrial
Allowance for loan losses:
Balance, beginning of the year		8,604	7,636
Loans charged off			(1,858)
Recoveries credited to allowance			681
Provision charged to operations			1,237
Balance, end of period			7,696
Loans:
Loans individually evaluated for impairment						6,236
ALLL individually evaluated for impairment						619
Loans collectively evaluated for impairment						2,106,218
ALLL collectively evaluated for impairment						7,768
Total Loans				3,555,971		2,114,033
Total ALLL		8,604	7,696			8,604
Commercial and Industrial | Purchased Impaired
Allowance for loan losses:
Balance, beginning of the year		217
Loans:
Total Loans						1,579
Total ALLL		217				217
Residential 1-4 Family - Commercial
Allowance for loan losses:
Balance, beginning of the year		1,365	1,692
Loans charged off			(267)
Recoveries credited to allowance			127
Provision charged to operations			66
Balance, end of period			1,618
Loans:
Loans individually evaluated for impairment						5,773
ALLL individually evaluated for impairment						162
Loans collectively evaluated for impairment						706,359
ALLL collectively evaluated for impairment						1,203
Total Loans				715,384		724,337
Total ALLL		1,365	1,618			1,365
Residential 1-4 Family - Commercial | Purchased Impaired
Allowance for loan losses:
Balance, beginning of the year		0
Loans:
Total Loans						12,205
Total ALLL		0				0
Residential 1-4 Family - Consumer
Allowance for loan losses:
Balance, beginning of the year		2,013	1,492
Loans charged off			(37)
Recoveries credited to allowance			219
Provision charged to operations			218
Balance, end of period			1,892
Loans:
Loans individually evaluated for impairment						20,446
ALLL individually evaluated for impairment						1,242
Loans collectively evaluated for impairment						855,344
ALLL collectively evaluated for impairment						771
Total Loans				841,051		890,503
Total ALLL		2,013	1,892			2,013
Residential 1-4 Family - Consumer | Purchased Impaired
Allowance for loan losses:
Balance, beginning of the year		0
Loans:
Total Loans						14,713
Total ALLL		0				0
Auto
Allowance for loan losses:
Balance, beginning of the year		1,453	1,443
Loans charged off			(703)
Recoveries credited to allowance			339
Provision charged to operations			334
Balance, end of period			1,413
Loans:
Loans individually evaluated for impairment						563
ALLL individually evaluated for impairment						221
Loans collectively evaluated for impairment						349,852
ALLL collectively evaluated for impairment						1,232
Total Loans				380,053		350,419
Total ALLL		1,453	1,413			1,453
Auto | Purchased Impaired
Allowance for loan losses:
Balance, beginning of the year		0
Loans:
Total Loans						4
Total ALLL		0				0
Commercial Portfolio
Allowance for loan losses:
Balance, beginning of the year	77,843	30,941
Impact of ASC 326 adoption on non-PCD loans				4,432
Impact of ASC 326 adoption on PCD loans		1,752
Impact of ASC 326 adoption		6,184
Loans charged off	(1,590)	(4,558)
Recoveries credited to allowance	708	1,862
Provision charged to operations	34,993	77,525
Balance, end of period	111,954	111,954
Loans:
Total Loans				12,148,415
Total ALLL	111,954	111,954		111,954	37,125	30,941
Commercial Portfolio | Purchased Impaired
Loans:
Total Loans						86,681
Consumer
Loans:
Total Loans				311,362		372,853
Consumer | Purchased Impaired
Loans:
Total Loans						668
Consumer Portfolio
Allowance for loan losses:
Balance, beginning of the year	63,200	11,353
Impact of ASC 326 adoption on non-PCD loans				40,666
Impact of ASC 326 adoption on PCD loans		634
Impact of ASC 326 adoption		41,300
Loans charged off	(3,087)	(7,270)
Recoveries credited to allowance	703	1,709
Provision charged to operations	(2,793)	10,931
Balance, end of period	58,023	58,023
Loans:
Total Loans				2,160,231
Total ALLL	$ 58,023	58,023		58,023	$ 52,653	11,353
Consumer and all other
Allowance for loan losses:
Balance, beginning of the year		7,684	7,145
Loans charged off			(7,454)
Recoveries credited to allowance			1,238
Provision charged to operations			7,305
Balance, end of period			8,234
Loans:
Loans individually evaluated for impairment						730
ALLL individually evaluated for impairment						76
Loans collectively evaluated for impairment						658,390
ALLL collectively evaluated for impairment						7,608
Total Loans						660,132
Total ALLL		7,684	8,234			7,684
Consumer and all other | Purchased Impaired
Allowance for loan losses:
Balance, beginning of the year		0
Loans:
Total Loans						1,012
Total ALLL		0				0
Residential 1-4 Family - Revolving
Allowance for loan losses:
Balance, beginning of the year		1,323	1,297
Loans charged off			(523)
Recoveries credited to allowance			434
Provision charged to operations			47
Balance, end of period			1,255
Loans:
Loans individually evaluated for impairment						3,048
ALLL individually evaluated for impairment						510
Loans collectively evaluated for impairment						652,329
ALLL collectively evaluated for impairment						813
Total Loans				$ 627,765		659,504
Total ALLL		1,323	$ 1,255			1,323
Residential 1-4 Family - Revolving | Purchased Impaired
Allowance for loan losses:
Balance, beginning of the year		0
Loans:
Total Loans						4,127
Total ALLL		$ 0				$ 0

LOANS AND ALLOWANCE FOR LOAN_11

LOANS AND ALLOWANCE FOR LOAN LOSSES (Loans Receivables Related Risk Rating) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Financing Receivable, Recorded Investment [Line Items]
Loans, Total	$ 14,308,646	$ 12,610,936
Construction and Land Development
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	142,473
Term Loans Amortized Cost Basis by Origination Year, 2019	460,639
Term Loans Amortized Cost Basis by Origination Year, 2018	397,055
Term Loans Amortized Cost Basis by Origination Year, 2017	65,841
Term Loans Amortized Cost Basis by Origination Year, 2016	56,209
Term Loans Amortized Cost Basis by Origination Year, Prior	94,153
Financing Receivable, Revolving	31,569
Loans, Total	1,247,939	1,250,924
Construction and Land Development | Pass
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	137,981
Term Loans Amortized Cost Basis by Origination Year, 2019	453,779
Term Loans Amortized Cost Basis by Origination Year, 2018	395,935
Term Loans Amortized Cost Basis by Origination Year, 2017	64,529
Term Loans Amortized Cost Basis by Origination Year, 2016	47,982
Term Loans Amortized Cost Basis by Origination Year, Prior	70,524
Financing Receivable, Revolving	29,060
Loans, Total	1,199,790
Construction and Land Development | Watch & Special Mention
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	4,492
Term Loans Amortized Cost Basis by Origination Year, 2019	6,859
Term Loans Amortized Cost Basis by Origination Year, 2018	1,061
Term Loans Amortized Cost Basis by Origination Year, 2017	350
Term Loans Amortized Cost Basis by Origination Year, 2016	5,759
Term Loans Amortized Cost Basis by Origination Year, Prior	16,202
Financing Receivable, Revolving	2,509
Loans, Total	37,232
Construction and Land Development | Substandard
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	0
Term Loans Amortized Cost Basis by Origination Year, 2019	1
Term Loans Amortized Cost Basis by Origination Year, 2018	59
Term Loans Amortized Cost Basis by Origination Year, 2017	962
Term Loans Amortized Cost Basis by Origination Year, 2016	2,468
Term Loans Amortized Cost Basis by Origination Year, Prior	7,427
Financing Receivable, Revolving	0
Loans, Total	10,917
Commercial Real Estate - Owner Occupied
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	144,263
Term Loans Amortized Cost Basis by Origination Year, 2019	395,556
Term Loans Amortized Cost Basis by Origination Year, 2018	316,602
Term Loans Amortized Cost Basis by Origination Year, 2017	274,359
Term Loans Amortized Cost Basis by Origination Year, 2016	177,384
Term Loans Amortized Cost Basis by Origination Year, Prior	732,300
Financing Receivable, Revolving	26,623
Loans, Total	2,067,087	2,041,243
Commercial Real Estate - Owner Occupied | Pass
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	144,263
Term Loans Amortized Cost Basis by Origination Year, 2019	384,862
Term Loans Amortized Cost Basis by Origination Year, 2018	290,813
Term Loans Amortized Cost Basis by Origination Year, 2017	258,877
Term Loans Amortized Cost Basis by Origination Year, 2016	147,657
Term Loans Amortized Cost Basis by Origination Year, Prior	658,853
Financing Receivable, Revolving	23,773
Loans, Total	1,909,098
Commercial Real Estate - Owner Occupied | Watch & Special Mention
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	0
Term Loans Amortized Cost Basis by Origination Year, 2019	10,694
Term Loans Amortized Cost Basis by Origination Year, 2018	24,683
Term Loans Amortized Cost Basis by Origination Year, 2017	15,082
Term Loans Amortized Cost Basis by Origination Year, 2016	28,604
Term Loans Amortized Cost Basis by Origination Year, Prior	57,783
Financing Receivable, Revolving	2,475
Loans, Total	139,321
Commercial Real Estate - Owner Occupied | Substandard
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	0
Term Loans Amortized Cost Basis by Origination Year, 2019	0
Term Loans Amortized Cost Basis by Origination Year, 2018	1,106
Term Loans Amortized Cost Basis by Origination Year, 2017	400
Term Loans Amortized Cost Basis by Origination Year, 2016	1,123
Term Loans Amortized Cost Basis by Origination Year, Prior	15,664
Financing Receivable, Revolving	375
Loans, Total	18,668
Commercial Real Estate - Non-Owner Occupied
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	215,605
Term Loans Amortized Cost Basis by Origination Year, 2019	532,216
Term Loans Amortized Cost Basis by Origination Year, 2018	503,708
Term Loans Amortized Cost Basis by Origination Year, 2017	515,047
Term Loans Amortized Cost Basis by Origination Year, 2016	476,069
Term Loans Amortized Cost Basis by Origination Year, Prior	1,161,176
Financing Receivable, Revolving	51,304
Loans, Total	3,455,125	3,286,098
Commercial Real Estate - Non-Owner Occupied | Pass
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	214,340
Term Loans Amortized Cost Basis by Origination Year, 2019	515,046
Term Loans Amortized Cost Basis by Origination Year, 2018	488,913
Term Loans Amortized Cost Basis by Origination Year, 2017	498,462
Term Loans Amortized Cost Basis by Origination Year, 2016	455,214
Term Loans Amortized Cost Basis by Origination Year, Prior	1,121,284
Financing Receivable, Revolving	50,855
Loans, Total	3,344,114
Commercial Real Estate - Non-Owner Occupied | Watch & Special Mention
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	1,265
Term Loans Amortized Cost Basis by Origination Year, 2019	17,170
Term Loans Amortized Cost Basis by Origination Year, 2018	14,631
Term Loans Amortized Cost Basis by Origination Year, 2017	16,585
Term Loans Amortized Cost Basis by Origination Year, 2016	20,830
Term Loans Amortized Cost Basis by Origination Year, Prior	33,911
Financing Receivable, Revolving	249
Loans, Total	104,641
Commercial Real Estate - Non-Owner Occupied | Substandard
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	0
Term Loans Amortized Cost Basis by Origination Year, 2019	0
Term Loans Amortized Cost Basis by Origination Year, 2018	164
Term Loans Amortized Cost Basis by Origination Year, 2017	0
Term Loans Amortized Cost Basis by Origination Year, 2016	25
Term Loans Amortized Cost Basis by Origination Year, Prior	5,981
Financing Receivable, Revolving	200
Loans, Total	6,370
Multifamily Real Estate
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	79,312
Term Loans Amortized Cost Basis by Origination Year, 2019	80,711
Term Loans Amortized Cost Basis by Origination Year, 2018	74,560
Term Loans Amortized Cost Basis by Origination Year, 2017	152,447
Term Loans Amortized Cost Basis by Origination Year, 2016	72,080
Term Loans Amortized Cost Basis by Origination Year, Prior	251,705
Financing Receivable, Revolving	6,904
Loans, Total	717,719	633,743
Multifamily Real Estate | Pass
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	79,312
Term Loans Amortized Cost Basis by Origination Year, 2019	80,058
Term Loans Amortized Cost Basis by Origination Year, 2018	70,145
Term Loans Amortized Cost Basis by Origination Year, 2017	144,193
Term Loans Amortized Cost Basis by Origination Year, 2016	70,943
Term Loans Amortized Cost Basis by Origination Year, Prior	245,687
Financing Receivable, Revolving	6,904
Loans, Total	697,242
Multifamily Real Estate | Watch & Special Mention
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	0
Term Loans Amortized Cost Basis by Origination Year, 2019	653
Term Loans Amortized Cost Basis by Origination Year, 2018	4,415
Term Loans Amortized Cost Basis by Origination Year, 2017	8,254
Term Loans Amortized Cost Basis by Origination Year, 2016	1,137
Term Loans Amortized Cost Basis by Origination Year, Prior	5,619
Financing Receivable, Revolving	0
Loans, Total	20,078
Multifamily Real Estate | Substandard
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	0
Term Loans Amortized Cost Basis by Origination Year, 2019	0
Term Loans Amortized Cost Basis by Origination Year, 2018	0
Term Loans Amortized Cost Basis by Origination Year, 2017	0
Term Loans Amortized Cost Basis by Origination Year, 2016	0
Term Loans Amortized Cost Basis by Origination Year, Prior	399
Financing Receivable, Revolving	0
Loans, Total	399
Commercial and Industrial
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	1,869,921
Term Loans Amortized Cost Basis by Origination Year, 2019	445,045
Term Loans Amortized Cost Basis by Origination Year, 2018	253,192
Term Loans Amortized Cost Basis by Origination Year, 2017	88,247
Term Loans Amortized Cost Basis by Origination Year, 2016	88,663
Term Loans Amortized Cost Basis by Origination Year, Prior	177,598
Financing Receivable, Revolving	633,305
Loans, Total	3,555,971	2,114,033
Commercial and Industrial | Pass
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	1,868,291
Term Loans Amortized Cost Basis by Origination Year, 2019	439,598
Term Loans Amortized Cost Basis by Origination Year, 2018	241,038
Term Loans Amortized Cost Basis by Origination Year, 2017	85,126
Term Loans Amortized Cost Basis by Origination Year, 2016	82,301
Term Loans Amortized Cost Basis by Origination Year, Prior	169,136
Financing Receivable, Revolving	601,547
Loans, Total	3,487,037
Commercial and Industrial | Watch & Special Mention
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	1,630
Term Loans Amortized Cost Basis by Origination Year, 2019	4,963
Term Loans Amortized Cost Basis by Origination Year, 2018	11,326
Term Loans Amortized Cost Basis by Origination Year, 2017	2,963
Term Loans Amortized Cost Basis by Origination Year, 2016	5,536
Term Loans Amortized Cost Basis by Origination Year, Prior	5,656
Financing Receivable, Revolving	27,680
Loans, Total	59,754
Commercial and Industrial | Substandard
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	0
Term Loans Amortized Cost Basis by Origination Year, 2019	484
Term Loans Amortized Cost Basis by Origination Year, 2018	828
Term Loans Amortized Cost Basis by Origination Year, 2017	158
Term Loans Amortized Cost Basis by Origination Year, 2016	826
Term Loans Amortized Cost Basis by Origination Year, Prior	2,806
Financing Receivable, Revolving	4,078
Loans, Total	9,180
Residential 1-4 Family - Commercial
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	59,436
Term Loans Amortized Cost Basis by Origination Year, 2019	111,090
Term Loans Amortized Cost Basis by Origination Year, 2018	87,469
Term Loans Amortized Cost Basis by Origination Year, 2017	103,305
Term Loans Amortized Cost Basis by Origination Year, 2016	85,640
Term Loans Amortized Cost Basis by Origination Year, Prior	266,235
Financing Receivable, Revolving	2,209
Loans, Total	715,384	724,337
Residential 1-4 Family - Commercial | Pass
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	58,222
Term Loans Amortized Cost Basis by Origination Year, 2019	105,249
Term Loans Amortized Cost Basis by Origination Year, 2018	78,610
Term Loans Amortized Cost Basis by Origination Year, 2017	97,653
Term Loans Amortized Cost Basis by Origination Year, 2016	82,407
Term Loans Amortized Cost Basis by Origination Year, Prior	244,579
Financing Receivable, Revolving	1,721
Loans, Total	668,441
Residential 1-4 Family - Commercial | Watch & Special Mention
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	1,214
Term Loans Amortized Cost Basis by Origination Year, 2019	5,356
Term Loans Amortized Cost Basis by Origination Year, 2018	8,535
Term Loans Amortized Cost Basis by Origination Year, 2017	5,022
Term Loans Amortized Cost Basis by Origination Year, 2016	2,053
Term Loans Amortized Cost Basis by Origination Year, Prior	14,874
Financing Receivable, Revolving	0
Loans, Total	37,054
Residential 1-4 Family - Commercial | Substandard
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	0
Term Loans Amortized Cost Basis by Origination Year, 2019	485
Term Loans Amortized Cost Basis by Origination Year, 2018	324
Term Loans Amortized Cost Basis by Origination Year, 2017	630
Term Loans Amortized Cost Basis by Origination Year, 2016	1,180
Term Loans Amortized Cost Basis by Origination Year, Prior	6,782
Financing Receivable, Revolving	488
Loans, Total	9,889
Residential 1-4 Family - Consumer
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	91,268
Term Loans Amortized Cost Basis by Origination Year, 2019	88,929
Term Loans Amortized Cost Basis by Origination Year, 2018	91,966
Term Loans Amortized Cost Basis by Origination Year, 2017	91,059
Term Loans Amortized Cost Basis by Origination Year, 2016	121,860
Term Loans Amortized Cost Basis by Origination Year, Prior	355,957
Financing Receivable, Revolving	12
Loans, Total	841,051	890,503
Residential 1-4 Family - Revolving
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	9,667
Term Loans Amortized Cost Basis by Origination Year, 2019	4,666
Term Loans Amortized Cost Basis by Origination Year, 2018	2,167
Term Loans Amortized Cost Basis by Origination Year, 2017	18
Term Loans Amortized Cost Basis by Origination Year, 2016	0
Term Loans Amortized Cost Basis by Origination Year, Prior	967
Financing Receivable, Revolving	610,280
Loans, Total	627,765	659,504
Auto
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	89,132
Term Loans Amortized Cost Basis by Origination Year, 2019	139,066
Term Loans Amortized Cost Basis by Origination Year, 2018	70,898
Term Loans Amortized Cost Basis by Origination Year, 2017	43,851
Term Loans Amortized Cost Basis by Origination Year, 2016	24,976
Term Loans Amortized Cost Basis by Origination Year, Prior	12,130
Financing Receivable, Revolving	0
Loans, Total	380,053	350,419
Consumer
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	24,840
Term Loans Amortized Cost Basis by Origination Year, 2019	92,263
Term Loans Amortized Cost Basis by Origination Year, 2018	95,358
Term Loans Amortized Cost Basis by Origination Year, 2017	30,359
Term Loans Amortized Cost Basis by Origination Year, 2016	13,299
Term Loans Amortized Cost Basis by Origination Year, Prior	19,226
Financing Receivable, Revolving	36,017
Loans, Total	311,362	372,853
Other Commercial
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	121,097
Term Loans Amortized Cost Basis by Origination Year, 2019	114,883
Term Loans Amortized Cost Basis by Origination Year, 2018	11,005
Term Loans Amortized Cost Basis by Origination Year, 2017	41,501
Term Loans Amortized Cost Basis by Origination Year, 2016	17,846
Term Loans Amortized Cost Basis by Origination Year, Prior	64,228
Financing Receivable, Revolving	18,630
Loans, Total	389,190	287,279
Other Commercial | Pass
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	121,097
Term Loans Amortized Cost Basis by Origination Year, 2019	114,883
Term Loans Amortized Cost Basis by Origination Year, 2018	10,376
Term Loans Amortized Cost Basis by Origination Year, 2017	40,118
Term Loans Amortized Cost Basis by Origination Year, 2016	16,919
Term Loans Amortized Cost Basis by Origination Year, Prior	60,477
Financing Receivable, Revolving	18,630
Loans, Total	382,500
Other Commercial | Watch & Special Mention
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	0
Term Loans Amortized Cost Basis by Origination Year, 2019	0
Term Loans Amortized Cost Basis by Origination Year, 2018	629
Term Loans Amortized Cost Basis by Origination Year, 2017	1,324
Term Loans Amortized Cost Basis by Origination Year, 2016	927
Term Loans Amortized Cost Basis by Origination Year, Prior	3,251
Financing Receivable, Revolving	0
Loans, Total	6,131
Other Commercial | Substandard
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	0
Term Loans Amortized Cost Basis by Origination Year, 2019	0
Term Loans Amortized Cost Basis by Origination Year, 2018	0
Term Loans Amortized Cost Basis by Origination Year, 2017	59
Term Loans Amortized Cost Basis by Origination Year, 2016	0
Term Loans Amortized Cost Basis by Origination Year, Prior	500
Financing Receivable, Revolving	0
Loans, Total	559
Commercial Portfolio
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	2,632,107
Term Loans Amortized Cost Basis by Origination Year, 2019	2,140,140
Term Loans Amortized Cost Basis by Origination Year, 2018	1,643,591
Term Loans Amortized Cost Basis by Origination Year, 2017	1,240,747
Term Loans Amortized Cost Basis by Origination Year, 2016	973,891
Term Loans Amortized Cost Basis by Origination Year, Prior	2,747,395
Financing Receivable, Revolving	770,544
Loans, Total	12,148,415
Commercial Portfolio | Pass
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	2,623,506
Term Loans Amortized Cost Basis by Origination Year, 2019	2,093,475
Term Loans Amortized Cost Basis by Origination Year, 2018	1,575,830
Term Loans Amortized Cost Basis by Origination Year, 2017	1,188,958
Term Loans Amortized Cost Basis by Origination Year, 2016	903,423
Term Loans Amortized Cost Basis by Origination Year, Prior	2,570,540
Financing Receivable, Revolving	732,490
Loans, Total	11,688,222
Commercial Portfolio | Watch & Special Mention
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	8,601
Term Loans Amortized Cost Basis by Origination Year, 2019	45,695
Term Loans Amortized Cost Basis by Origination Year, 2018	65,280
Term Loans Amortized Cost Basis by Origination Year, 2017	49,580
Term Loans Amortized Cost Basis by Origination Year, 2016	64,846
Term Loans Amortized Cost Basis by Origination Year, Prior	137,296
Financing Receivable, Revolving	32,913
Loans, Total	404,211
Commercial Portfolio | Substandard
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	0
Term Loans Amortized Cost Basis by Origination Year, 2019	970
Term Loans Amortized Cost Basis by Origination Year, 2018	2,481
Term Loans Amortized Cost Basis by Origination Year, 2017	2,209
Term Loans Amortized Cost Basis by Origination Year, 2016	5,622
Term Loans Amortized Cost Basis by Origination Year, Prior	39,559
Financing Receivable, Revolving	5,141
Loans, Total	55,982
Excluding Purchased Impaired
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		12,524,255
Excluding Purchased Impaired | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		12,142,328
Excluding Purchased Impaired | Watch & Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		316,317
Excluding Purchased Impaired | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		65,252
Excluding Purchased Impaired | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		358
Excluding Purchased Impaired | Construction and Land Development
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		1,239,980
Excluding Purchased Impaired | Construction and Land Development | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		1,197,066
Excluding Purchased Impaired | Construction and Land Development | Watch & Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		37,182
Excluding Purchased Impaired | Construction and Land Development | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		5,732
Excluding Purchased Impaired | Construction and Land Development | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		0
Excluding Purchased Impaired | Commercial Real Estate - Owner Occupied
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		2,013,805
Excluding Purchased Impaired | Commercial Real Estate - Owner Occupied | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		1,916,492
Excluding Purchased Impaired | Commercial Real Estate - Owner Occupied | Watch & Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		87,004
Excluding Purchased Impaired | Commercial Real Estate - Owner Occupied | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		10,309
Excluding Purchased Impaired | Commercial Real Estate - Owner Occupied | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		0
Excluding Purchased Impaired | Commercial Real Estate - Non-Owner Occupied
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		3,271,533
Excluding Purchased Impaired | Commercial Real Estate - Non-Owner Occupied | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		3,205,463
Excluding Purchased Impaired | Commercial Real Estate - Non-Owner Occupied | Watch & Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		62,368
Excluding Purchased Impaired | Commercial Real Estate - Non-Owner Occupied | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		3,608
Excluding Purchased Impaired | Commercial Real Estate - Non-Owner Occupied | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		94
Excluding Purchased Impaired | Multifamily Real Estate
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		633,649
Excluding Purchased Impaired | Multifamily Real Estate | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		613,844
Excluding Purchased Impaired | Multifamily Real Estate | Watch & Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		19,396
Excluding Purchased Impaired | Multifamily Real Estate | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		409
Excluding Purchased Impaired | Multifamily Real Estate | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		0
Excluding Purchased Impaired | Commercial and Industrial
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		2,112,454
Excluding Purchased Impaired | Commercial and Industrial | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		2,043,903
Excluding Purchased Impaired | Commercial and Industrial | Watch & Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		60,495
Excluding Purchased Impaired | Commercial and Industrial | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		8,048
Excluding Purchased Impaired | Commercial and Industrial | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		8
Excluding Purchased Impaired | Residential 1-4 Family - Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		712,132
Excluding Purchased Impaired | Residential 1-4 Family - Commercial | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		680,894
Excluding Purchased Impaired | Residential 1-4 Family - Commercial | Watch & Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		24,864
Excluding Purchased Impaired | Residential 1-4 Family - Commercial | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		6,374
Excluding Purchased Impaired | Residential 1-4 Family - Commercial | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		0
Excluding Purchased Impaired | Residential 1-4 Family - Consumer
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		875,790
Excluding Purchased Impaired | Residential 1-4 Family - Consumer | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		841,408
Excluding Purchased Impaired | Residential 1-4 Family - Consumer | Watch & Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		13,592
Excluding Purchased Impaired | Residential 1-4 Family - Consumer | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		20,534
Excluding Purchased Impaired | Residential 1-4 Family - Consumer | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		256
Excluding Purchased Impaired | Residential 1-4 Family - Revolving
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		655,377
Excluding Purchased Impaired | Residential 1-4 Family - Revolving | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		641,069
Excluding Purchased Impaired | Residential 1-4 Family - Revolving | Watch & Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		6,373
Excluding Purchased Impaired | Residential 1-4 Family - Revolving | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		7,935
Excluding Purchased Impaired | Residential 1-4 Family - Revolving | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		0
Excluding Purchased Impaired | Auto
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		350,415
Excluding Purchased Impaired | Auto | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		345,960
Excluding Purchased Impaired | Auto | Watch & Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		2,630
Excluding Purchased Impaired | Auto | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		1,825
Excluding Purchased Impaired | Auto | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		0
Excluding Purchased Impaired | Consumer
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		372,185
Excluding Purchased Impaired | Consumer | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		371,315
Excluding Purchased Impaired | Consumer | Watch & Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		550
Excluding Purchased Impaired | Consumer | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		320
Excluding Purchased Impaired | Consumer | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		0
Excluding Purchased Impaired | Other Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		286,935
Excluding Purchased Impaired | Other Commercial | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		284,914
Excluding Purchased Impaired | Other Commercial | Watch & Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		1,863
Excluding Purchased Impaired | Other Commercial | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		158
Excluding Purchased Impaired | Other Commercial | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		0
Purchased Impaired
Financing Receivable, Recorded Investment [Line Items]
Loans, Total	$ 73,200	86,681
Purchased Impaired | Construction and Land Development
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		10,944
Purchased Impaired | Construction and Land Development | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		1,092
Purchased Impaired | Construction and Land Development | Watch & Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		3,692
Purchased Impaired | Construction and Land Development | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		6,160
Purchased Impaired | Construction and Land Development | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		0
Purchased Impaired | Commercial Real Estate - Owner Occupied
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		27,438
Purchased Impaired | Commercial Real Estate - Owner Occupied | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		8,264
Purchased Impaired | Commercial Real Estate - Owner Occupied | Watch & Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		10,524
Purchased Impaired | Commercial Real Estate - Owner Occupied | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		8,650
Purchased Impaired | Commercial Real Estate - Owner Occupied | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		0
Purchased Impaired | Commercial Real Estate - Non-Owner Occupied
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		14,565
Purchased Impaired | Commercial Real Estate - Non-Owner Occupied | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		3,826
Purchased Impaired | Commercial Real Estate - Non-Owner Occupied | Watch & Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		9,415
Purchased Impaired | Commercial Real Estate - Non-Owner Occupied | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		1,324
Purchased Impaired | Commercial Real Estate - Non-Owner Occupied | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		0
Purchased Impaired | Multifamily Real Estate
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		94
Purchased Impaired | Multifamily Real Estate | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		0
Purchased Impaired | Multifamily Real Estate | Watch & Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		94
Purchased Impaired | Multifamily Real Estate | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		0
Purchased Impaired | Multifamily Real Estate | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		0
Purchased Impaired | Commercial and Industrial
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		1,579
Purchased Impaired | Commercial and Industrial | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		127
Purchased Impaired | Commercial and Industrial | Watch & Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		25
Purchased Impaired | Commercial and Industrial | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		1,427
Purchased Impaired | Commercial and Industrial | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		0
Purchased Impaired | Residential 1-4 Family - Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		12,205
Purchased Impaired | Residential 1-4 Family - Commercial | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		6,000
Purchased Impaired | Residential 1-4 Family - Commercial | Watch & Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		2,693
Purchased Impaired | Residential 1-4 Family - Commercial | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		3,512
Purchased Impaired | Residential 1-4 Family - Commercial | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		0
Purchased Impaired | Residential 1-4 Family - Consumer
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		14,713
Purchased Impaired | Residential 1-4 Family - Consumer | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		9,947
Purchased Impaired | Residential 1-4 Family - Consumer | Watch & Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		557
Purchased Impaired | Residential 1-4 Family - Consumer | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		4,209
Purchased Impaired | Residential 1-4 Family - Consumer | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		0
Purchased Impaired | Residential 1-4 Family - Revolving
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		4,127
Purchased Impaired | Residential 1-4 Family - Revolving | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		2,887
Purchased Impaired | Residential 1-4 Family - Revolving | Watch & Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		707
Purchased Impaired | Residential 1-4 Family - Revolving | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		533
Purchased Impaired | Residential 1-4 Family - Revolving | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		0
Purchased Impaired | Auto
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		4
Purchased Impaired | Auto | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		2
Purchased Impaired | Auto | Watch & Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		0
Purchased Impaired | Auto | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		2
Purchased Impaired | Auto | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		0
Purchased Impaired | Consumer
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		668
Purchased Impaired | Consumer | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		657
Purchased Impaired | Consumer | Watch & Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		0
Purchased Impaired | Consumer | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		11
Purchased Impaired | Consumer | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		0
Purchased Impaired | Other Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		344
Purchased Impaired | Other Commercial | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		120
Purchased Impaired | Other Commercial | Watch & Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		224
Purchased Impaired | Other Commercial | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		0
Purchased Impaired | Other Commercial | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		0
Purchased Impaired | Commercial Portfolio
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		86,681
Purchased Impaired | Commercial Portfolio | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		32,922
Purchased Impaired | Commercial Portfolio | Watch & Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		27,931
Purchased Impaired | Commercial Portfolio | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		25,828
Purchased Impaired | Commercial Portfolio | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		$ 0

LOANS AND ALLOWANCE FOR LOAN_12

LOANS AND ALLOWANCE FOR LOAN LOSSES (Loans Receivables Based on Delinquency Status) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Financing Receivable, Recorded Investment [Line Items]
Loans, Total	$ 14,308,646	$ 12,610,936
Construction and Land Development
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	142,473
Term Loans Amortized Cost Basis by Origination Year, 2019	460,639
Term Loans Amortized Cost Basis by Origination Year, 2018	397,055
Term Loans Amortized Cost Basis by Origination Year, 2017	65,841
Term Loans Amortized Cost Basis by Origination Year, 2016	56,209
Term Loans Amortized Cost Basis by Origination Year, Prior	94,153
Financing Receivable, Revolving	31,569
Loans, Total	1,247,939	1,250,924
Commercial Real Estate - Owner Occupied
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	144,263
Term Loans Amortized Cost Basis by Origination Year, 2019	395,556
Term Loans Amortized Cost Basis by Origination Year, 2018	316,602
Term Loans Amortized Cost Basis by Origination Year, 2017	274,359
Term Loans Amortized Cost Basis by Origination Year, 2016	177,384
Term Loans Amortized Cost Basis by Origination Year, Prior	732,300
Financing Receivable, Revolving	26,623
Loans, Total	2,067,087	2,041,243
Commercial Real Estate - Non-Owner Occupied
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	215,605
Term Loans Amortized Cost Basis by Origination Year, 2019	532,216
Term Loans Amortized Cost Basis by Origination Year, 2018	503,708
Term Loans Amortized Cost Basis by Origination Year, 2017	515,047
Term Loans Amortized Cost Basis by Origination Year, 2016	476,069
Term Loans Amortized Cost Basis by Origination Year, Prior	1,161,176
Financing Receivable, Revolving	51,304
Loans, Total	3,455,125	3,286,098
Multifamily Real Estate
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	79,312
Term Loans Amortized Cost Basis by Origination Year, 2019	80,711
Term Loans Amortized Cost Basis by Origination Year, 2018	74,560
Term Loans Amortized Cost Basis by Origination Year, 2017	152,447
Term Loans Amortized Cost Basis by Origination Year, 2016	72,080
Term Loans Amortized Cost Basis by Origination Year, Prior	251,705
Financing Receivable, Revolving	6,904
Loans, Total	717,719	633,743
Commercial and Industrial
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	1,869,921
Term Loans Amortized Cost Basis by Origination Year, 2019	445,045
Term Loans Amortized Cost Basis by Origination Year, 2018	253,192
Term Loans Amortized Cost Basis by Origination Year, 2017	88,247
Term Loans Amortized Cost Basis by Origination Year, 2016	88,663
Term Loans Amortized Cost Basis by Origination Year, Prior	177,598
Financing Receivable, Revolving	633,305
Loans, Total	3,555,971	2,114,033
Residential 1-4 Family - Commercial
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	59,436
Term Loans Amortized Cost Basis by Origination Year, 2019	111,090
Term Loans Amortized Cost Basis by Origination Year, 2018	87,469
Term Loans Amortized Cost Basis by Origination Year, 2017	103,305
Term Loans Amortized Cost Basis by Origination Year, 2016	85,640
Term Loans Amortized Cost Basis by Origination Year, Prior	266,235
Financing Receivable, Revolving	2,209
Loans, Total	715,384	724,337
Residential 1-4 Family - Consumer
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	91,268
Term Loans Amortized Cost Basis by Origination Year, 2019	88,929
Term Loans Amortized Cost Basis by Origination Year, 2018	91,966
Term Loans Amortized Cost Basis by Origination Year, 2017	91,059
Term Loans Amortized Cost Basis by Origination Year, 2016	121,860
Term Loans Amortized Cost Basis by Origination Year, Prior	355,957
Financing Receivable, Revolving	12
Loans, Total	841,051	890,503
Residential 1-4 Family - Revolving
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	9,667
Term Loans Amortized Cost Basis by Origination Year, 2019	4,666
Term Loans Amortized Cost Basis by Origination Year, 2018	2,167
Term Loans Amortized Cost Basis by Origination Year, 2017	18
Term Loans Amortized Cost Basis by Origination Year, 2016	0
Term Loans Amortized Cost Basis by Origination Year, Prior	967
Financing Receivable, Revolving	610,280
Loans, Total	627,765	659,504
Consumer
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	24,840
Term Loans Amortized Cost Basis by Origination Year, 2019	92,263
Term Loans Amortized Cost Basis by Origination Year, 2018	95,358
Term Loans Amortized Cost Basis by Origination Year, 2017	30,359
Term Loans Amortized Cost Basis by Origination Year, 2016	13,299
Term Loans Amortized Cost Basis by Origination Year, Prior	19,226
Financing Receivable, Revolving	36,017
Loans, Total	311,362	372,853
Auto
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	89,132
Term Loans Amortized Cost Basis by Origination Year, 2019	139,066
Term Loans Amortized Cost Basis by Origination Year, 2018	70,898
Term Loans Amortized Cost Basis by Origination Year, 2017	43,851
Term Loans Amortized Cost Basis by Origination Year, 2016	24,976
Term Loans Amortized Cost Basis by Origination Year, Prior	12,130
Financing Receivable, Revolving	0
Loans, Total	380,053	350,419
Consumer Portfolio
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	214,907
Term Loans Amortized Cost Basis by Origination Year, 2019	324,924
Term Loans Amortized Cost Basis by Origination Year, 2018	260,389
Term Loans Amortized Cost Basis by Origination Year, 2017	165,287
Term Loans Amortized Cost Basis by Origination Year, 2016	160,135
Term Loans Amortized Cost Basis by Origination Year, Prior	388,280
Financing Receivable, Revolving	646,309
Loans, Total	2,160,231
Purchased Impaired
Financing Receivable, Recorded Investment [Line Items]
Loans, Total	73,200	86,681
Purchased Impaired | Construction and Land Development
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		10,944
Purchased Impaired | Commercial Real Estate - Owner Occupied
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		27,438
Purchased Impaired | Commercial Real Estate - Non-Owner Occupied
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		14,565
Purchased Impaired | Multifamily Real Estate
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		94
Purchased Impaired | Commercial and Industrial
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		1,579
Purchased Impaired | Residential 1-4 Family - Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		12,205
Purchased Impaired | Residential 1-4 Family - Consumer
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		14,713
Purchased Impaired | Residential 1-4 Family - Revolving
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		4,127
Purchased Impaired | Consumer
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		668
Purchased Impaired | Auto
Financing Receivable, Recorded Investment [Line Items]
Loans, Total		$ 4
Current | Residential 1-4 Family - Consumer
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	91,069
Term Loans Amortized Cost Basis by Origination Year, 2019	86,537
Term Loans Amortized Cost Basis by Origination Year, 2018	90,968
Term Loans Amortized Cost Basis by Origination Year, 2017	87,658
Term Loans Amortized Cost Basis by Origination Year, 2016	120,412
Term Loans Amortized Cost Basis by Origination Year, Prior	342,221
Financing Receivable, Revolving	12
Loans, Total	818,877
Current | Residential 1-4 Family - Revolving
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	9,667
Term Loans Amortized Cost Basis by Origination Year, 2019	4,666
Term Loans Amortized Cost Basis by Origination Year, 2018	2,167
Term Loans Amortized Cost Basis by Origination Year, 2017	18
Term Loans Amortized Cost Basis by Origination Year, 2016	0
Term Loans Amortized Cost Basis by Origination Year, Prior	653
Financing Receivable, Revolving	602,001
Loans, Total	619,172
Current | Consumer
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	24,807
Term Loans Amortized Cost Basis by Origination Year, 2019	91,712
Term Loans Amortized Cost Basis by Origination Year, 2018	94,273
Term Loans Amortized Cost Basis by Origination Year, 2017	30,170
Term Loans Amortized Cost Basis by Origination Year, 2016	13,211
Term Loans Amortized Cost Basis by Origination Year, Prior	18,930
Financing Receivable, Revolving	35,616
Loans, Total	308,719
Current | Auto
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	89,044
Term Loans Amortized Cost Basis by Origination Year, 2019	138,532
Term Loans Amortized Cost Basis by Origination Year, 2018	70,484
Term Loans Amortized Cost Basis by Origination Year, 2017	43,386
Term Loans Amortized Cost Basis by Origination Year, 2016	24,536
Term Loans Amortized Cost Basis by Origination Year, Prior	11,840
Financing Receivable, Revolving	0
Loans, Total	377,822
Current | Consumer Portfolio
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	214,587
Term Loans Amortized Cost Basis by Origination Year, 2019	321,447
Term Loans Amortized Cost Basis by Origination Year, 2018	257,892
Term Loans Amortized Cost Basis by Origination Year, 2017	161,232
Term Loans Amortized Cost Basis by Origination Year, 2016	158,159
Term Loans Amortized Cost Basis by Origination Year, Prior	373,644
Financing Receivable, Revolving	637,629
Loans, Total	2,124,590
30-59 Days Past Due | Residential 1-4 Family - Consumer
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	37
Term Loans Amortized Cost Basis by Origination Year, 2019	0
Term Loans Amortized Cost Basis by Origination Year, 2018	20
Term Loans Amortized Cost Basis by Origination Year, 2017	90
Term Loans Amortized Cost Basis by Origination Year, 2016	185
Term Loans Amortized Cost Basis by Origination Year, Prior	897
Financing Receivable, Revolving	0
Loans, Total	1,229
30-59 Days Past Due | Residential 1-4 Family - Revolving
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	0
Term Loans Amortized Cost Basis by Origination Year, 2019	0
Term Loans Amortized Cost Basis by Origination Year, 2018	0
Term Loans Amortized Cost Basis by Origination Year, 2017	0
Term Loans Amortized Cost Basis by Origination Year, 2016	0
Term Loans Amortized Cost Basis by Origination Year, Prior	0
Financing Receivable, Revolving	1,924
Loans, Total	1,924
30-59 Days Past Due | Consumer
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	14
Term Loans Amortized Cost Basis by Origination Year, 2019	261
Term Loans Amortized Cost Basis by Origination Year, 2018	407
Term Loans Amortized Cost Basis by Origination Year, 2017	74
Term Loans Amortized Cost Basis by Origination Year, 2016	61
Term Loans Amortized Cost Basis by Origination Year, Prior	2
Financing Receivable, Revolving	25
Loans, Total	844
30-59 Days Past Due | Auto
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	88
Term Loans Amortized Cost Basis by Origination Year, 2019	291
Term Loans Amortized Cost Basis by Origination Year, 2018	247
Term Loans Amortized Cost Basis by Origination Year, 2017	254
Term Loans Amortized Cost Basis by Origination Year, 2016	186
Term Loans Amortized Cost Basis by Origination Year, Prior	110
Financing Receivable, Revolving	0
Loans, Total	1,176
30-59 Days Past Due | Consumer Portfolio
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	139
Term Loans Amortized Cost Basis by Origination Year, 2019	552
Term Loans Amortized Cost Basis by Origination Year, 2018	674
Term Loans Amortized Cost Basis by Origination Year, 2017	418
Term Loans Amortized Cost Basis by Origination Year, 2016	432
Term Loans Amortized Cost Basis by Origination Year, Prior	1,009
Financing Receivable, Revolving	1,949
Loans, Total	5,173
60-89 Days Past Due | Residential 1-4 Family - Consumer
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	0
Term Loans Amortized Cost Basis by Origination Year, 2019	636
Term Loans Amortized Cost Basis by Origination Year, 2018	109
Term Loans Amortized Cost Basis by Origination Year, 2017	1,986
Term Loans Amortized Cost Basis by Origination Year, 2016	250
Term Loans Amortized Cost Basis by Origination Year, Prior	836
Financing Receivable, Revolving	0
Loans, Total	3,817
60-89 Days Past Due | Residential 1-4 Family - Revolving
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	0
Term Loans Amortized Cost Basis by Origination Year, 2019	0
Term Loans Amortized Cost Basis by Origination Year, 2018	0
Term Loans Amortized Cost Basis by Origination Year, 2017	0
Term Loans Amortized Cost Basis by Origination Year, 2016	0
Term Loans Amortized Cost Basis by Origination Year, Prior	0
Financing Receivable, Revolving	1,048
Loans, Total	1,048
60-89 Days Past Due | Consumer
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	19
Term Loans Amortized Cost Basis by Origination Year, 2019	198
Term Loans Amortized Cost Basis by Origination Year, 2018	296
Term Loans Amortized Cost Basis by Origination Year, 2017	30
Term Loans Amortized Cost Basis by Origination Year, 2016	6
Term Loans Amortized Cost Basis by Origination Year, Prior	0
Financing Receivable, Revolving	12
Loans, Total	561
60-89 Days Past Due | Auto
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	0
Term Loans Amortized Cost Basis by Origination Year, 2019	90
Term Loans Amortized Cost Basis by Origination Year, 2018	21
Term Loans Amortized Cost Basis by Origination Year, 2017	41
Term Loans Amortized Cost Basis by Origination Year, 2016	84
Term Loans Amortized Cost Basis by Origination Year, Prior	54
Financing Receivable, Revolving	0
Loans, Total	290
60-89 Days Past Due | Consumer Portfolio
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	19
Term Loans Amortized Cost Basis by Origination Year, 2019	924
Term Loans Amortized Cost Basis by Origination Year, 2018	426
Term Loans Amortized Cost Basis by Origination Year, 2017	2,057
Term Loans Amortized Cost Basis by Origination Year, 2016	340
Term Loans Amortized Cost Basis by Origination Year, Prior	890
Financing Receivable, Revolving	1,060
Loans, Total	5,716
90+ Days Past Due | Residential 1-4 Family - Consumer
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	162
Term Loans Amortized Cost Basis by Origination Year, 2019	1,756
Term Loans Amortized Cost Basis by Origination Year, 2018	151
Term Loans Amortized Cost Basis by Origination Year, 2017	446
Term Loans Amortized Cost Basis by Origination Year, 2016	223
Term Loans Amortized Cost Basis by Origination Year, Prior	2,361
Financing Receivable, Revolving	0
Loans, Total	5,099
90+ Days Past Due | Residential 1-4 Family - Revolving
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	0
Term Loans Amortized Cost Basis by Origination Year, 2019	0
Term Loans Amortized Cost Basis by Origination Year, 2018	0
Term Loans Amortized Cost Basis by Origination Year, 2017	0
Term Loans Amortized Cost Basis by Origination Year, 2016	0
Term Loans Amortized Cost Basis by Origination Year, Prior	0
Financing Receivable, Revolving	1,995
Loans, Total	1,995
90+ Days Past Due | Consumer
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	0
Term Loans Amortized Cost Basis by Origination Year, 2019	92
Term Loans Amortized Cost Basis by Origination Year, 2018	382
Term Loans Amortized Cost Basis by Origination Year, 2017	85
Term Loans Amortized Cost Basis by Origination Year, 2016	19
Term Loans Amortized Cost Basis by Origination Year, Prior	215
Financing Receivable, Revolving	364
Loans, Total	1,157
90+ Days Past Due | Auto
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	0
Term Loans Amortized Cost Basis by Origination Year, 2019	11
Term Loans Amortized Cost Basis by Origination Year, 2018	62
Term Loans Amortized Cost Basis by Origination Year, 2017	58
Term Loans Amortized Cost Basis by Origination Year, 2016	9
Term Loans Amortized Cost Basis by Origination Year, Prior	41
Financing Receivable, Revolving	0
Loans, Total	181
90+ Days Past Due | Consumer Portfolio
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	162
Term Loans Amortized Cost Basis by Origination Year, 2019	1,859
Term Loans Amortized Cost Basis by Origination Year, 2018	595
Term Loans Amortized Cost Basis by Origination Year, 2017	589
Term Loans Amortized Cost Basis by Origination Year, 2016	251
Term Loans Amortized Cost Basis by Origination Year, Prior	2,617
Financing Receivable, Revolving	2,359
Loans, Total	8,432
Nonaccrual | Residential 1-4 Family - Consumer
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	0
Term Loans Amortized Cost Basis by Origination Year, 2019	0
Term Loans Amortized Cost Basis by Origination Year, 2018	718
Term Loans Amortized Cost Basis by Origination Year, 2017	879
Term Loans Amortized Cost Basis by Origination Year, 2016	790
Term Loans Amortized Cost Basis by Origination Year, Prior	9,642
Financing Receivable, Revolving	0
Loans, Total	12,029
Nonaccrual | Residential 1-4 Family - Revolving
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	0
Term Loans Amortized Cost Basis by Origination Year, 2019	0
Term Loans Amortized Cost Basis by Origination Year, 2018	0
Term Loans Amortized Cost Basis by Origination Year, 2017	0
Term Loans Amortized Cost Basis by Origination Year, 2016	0
Term Loans Amortized Cost Basis by Origination Year, Prior	314
Financing Receivable, Revolving	3,312
Loans, Total	3,626
Nonaccrual | Consumer
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	0
Term Loans Amortized Cost Basis by Origination Year, 2019	0
Term Loans Amortized Cost Basis by Origination Year, 2018	0
Term Loans Amortized Cost Basis by Origination Year, 2017	0
Term Loans Amortized Cost Basis by Origination Year, 2016	2
Term Loans Amortized Cost Basis by Origination Year, Prior	79
Financing Receivable, Revolving	0
Loans, Total	81
Nonaccrual | Auto
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	0
Term Loans Amortized Cost Basis by Origination Year, 2019	142
Term Loans Amortized Cost Basis by Origination Year, 2018	84
Term Loans Amortized Cost Basis by Origination Year, 2017	112
Term Loans Amortized Cost Basis by Origination Year, 2016	161
Term Loans Amortized Cost Basis by Origination Year, Prior	85
Financing Receivable, Revolving	0
Loans, Total	584
Nonaccrual | Consumer Portfolio
Financing Receivable, Recorded Investment [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	0
Term Loans Amortized Cost Basis by Origination Year, 2019	142
Term Loans Amortized Cost Basis by Origination Year, 2018	802
Term Loans Amortized Cost Basis by Origination Year, 2017	991
Term Loans Amortized Cost Basis by Origination Year, 2016	953
Term Loans Amortized Cost Basis by Origination Year, Prior	10,120
Financing Receivable, Revolving	3,312
Loans, Total	$ 16,320

LOANS AND ALLOWANCE FOR LOAN_13

LOANS AND ALLOWANCE FOR LOAN LOSSES (Schedule of Acquired Loan Portfolio and Accretable Yield) (Details) - Purchased Impaired $ in Thousands	6 Months Ended
	Jun. 30, 2019USD ($)
Accretable Yield
Balance at beginning of period	$ 31,201
Additions	2,432
Accretion	(6,510)
Reclass of nonaccretable difference due to improvement in expected cash flows	716
Measurement period adjustment	2,629
Other, net	2,182
Balance at end of period	$ 32,650

INTANGIBLE ASSETS (Narrative) (

INTANGIBLE ASSETS (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Finite-Lived Intangible Assets [Line Items]
Impairment of goodwill or intangible assets	$ 0
Intangible assets, amortization expense	4,223	$ 4,937	$ 8,624	$ 9,154
Core Deposits | Minimum
Finite-Lived Intangible Assets [Line Items]
Intangible assets, amortization period (years)			4 years
Core Deposits | Maximum
Finite-Lived Intangible Assets [Line Items]
Intangible assets, amortization period (years)			10 years
Other Amortizable Intangibles | Minimum
Finite-Lived Intangible Assets [Line Items]
Intangible assets, amortization period (years)			4 years
Other Amortizable Intangibles | Maximum
Finite-Lived Intangible Assets [Line Items]
Intangible assets, amortization period (years)			10 years
Core Deposits and Other Intangible Assets
Finite-Lived Intangible Assets [Line Items]
Intangible assets, amortization expense	$ 4,200	$ 4,900	$ 8,600	$ 9,200

INTANGIBLE ASSETS (Estimated Re

INTANGIBLE ASSETS (Estimated Remaining Amortization Expense of Intangibles) (Details) $ in Thousands	Jun. 30, 2020USD ($)
Estimated Remaining Amortization of Intangibles
For the remaining six months of 2020	$ 7,920
2021	13,874
2022	11,490
2023	9,687
2024	7,818
Thereafter	14,316
Total estimated amortization expense	$ 65,105

LEASES (Narrative) (Details)

LEASES (Narrative) (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2020USD ($)	Jun. 30, 2019USD ($)	Jun. 30, 2020USD ($)lease	Jun. 30, 2019USD ($)	Dec. 31, 2019USD ($)
Lessor Disclosure [Abstract]
Residual assets covered by residual value guarantees	$ 7,500,000		$ 7,500,000
Net Investment in Lease	81,300,000		81,300,000
Sales-type and direct financing leases, lease receivables	78,698,000		78,698,000
Sales-type and direct financing leases, unguaranteed residuals	2,600,000		2,600,000
Sales-type and direct financing leases, lease income	290,000	$ 0	340,000	$ 0
Lessee Disclosure [Abstract]
Operating lease, right-of-use asset	53,208,000		53,208,000		$ 54,941,000
Lease liabilities	63,523,000		63,523,000		$ 66,052,000
Lessee, operating lease, lease not yet commenced, amount	$ 0		$ 0
Sale leaseback transaction, number of transactions (transaction) | lease			0
Minimum
Lessor Disclosure [Abstract]
Lessor sales-type and direct financing lease, term of contract			31 months
Maximum
Lessor Disclosure [Abstract]
Lessor sales-type and direct financing lease, term of contract			125 months
Lessee Disclosure [Abstract]
Lessee, operating lease, remaining lease term (years)			14 years

LEASES (Lessee Lease Portfolio

LEASES (Lessee Lease Portfolio and Other Supplemental Lease Information) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Lessee, Operating Lease
Right-of-use assets	$ 53,208	$ 54,941
Lease liabilities	$ 63,523	$ 66,052
Weighted average remaining lease term (years)	7 years	7 years 4 months 9 days
Weighted average discount rate, percent	2.43%	2.69%
Lessee, Finance Lease
Right-of-use-assets	$ 7,884
Lease liabilities	$ 10,559
Weighted-average remaining lease term (years)	8 years 6 months 29 days
Weighted-average discount rate, percent	1.17%

LEASES (Other Lease Information

LEASES (Other Lease Information) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Leases [Abstract]
Operating Cash Flows from Finance Leases	$ 10
Operating Cash Flows from Operating Leases	6,893	$ 6,880
Right-of-use assets obtained in exchange for lease obligations, operating lease	3,183	$ 3,619
Right-of-use assets obtained in exchange for lease obligations, finance leases	$ 10,549

LEASES (Lease Cost Information)

LEASES (Lease Cost Information) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Leases [Abstract]
Net Operating Lease Cost	$ 2,928	$ 3,134	$ 5,847	$ 6,136
Finance Lease Cost: Amortization of right-of-use assets	77		77
Finance Lease Cost: Interest on lease liabilities	10		10
Total Lease Cost	$ 3,015	$ 3,134	$ 5,934	$ 6,136

LEASES (Maturities of Lessor an

LEASES (Maturities of Lessor and Lessee Arrangements Outstanding) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Lessor - Sales-type and Direct Financing Lease Maturities
For the remaining six months of 2020	$ 7,894
2021	16,216
2022	17,093
2023	15,503
2024	13,130
2025	4,310
Thereafter	10,548
Total undiscounted cash flows	84,694
Less: Adjustments	5,996
Total	78,698
Lessee - Operating Lease Maturities
For the remaining six months of 2020	6,526
2021	12,182
2022	10,920
2023	9,958
2024	8,640
2025	6,296
Thereafter	15,088
Total undiscounted cash flows	69,610
Less: Adjustments	6,087
Total	63,523	$ 66,052
Lessee - Finance Lease Maturities
For the remaining six months of 2020	0
2021	1,261
2022	1,292
2023	1,325
2024	1,358
2025	1,392
Thereafter	4,515
Total undiscounted cash flows	11,143
Less: Adjustments	584
Total	$ 10,559

BORROWINGS (Short-Term Borrowin

BORROWINGS (Short-Term Borrowings) (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Debt Disclosure [Abstract]
Securities sold under agreements to repurchase	$ 77,216	$ 66,053
FHLB Advances		370,200
Total short-term borrowings	77,216	436,253
Average outstanding balance during the period	$ 272,470	$ 673,116
Average interest rate (during the period)	1.13%	2.30%
Average interest rate at end of period	0.32%	1.52%

BORROWINGS (Narrative) (Details

BORROWINGS (Narrative) (Details) - USD ($)	Feb. 01, 2019	Aug. 23, 2012	Jun. 30, 2019	Dec. 31, 2016	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019	Jan. 01, 2018
Subordinated Borrowing [Line Items]
Remaining available balance for the federal funds lines					$ 972,000,000		$ 682,000,000
Maximum collateral dependent line of credit with the FHLB					5,300,000,000		5,200,000,000
Subordinated debt				$ 150,000,000	158,500,000
Prepayment penalty		$ 19,600,000
Amortization expense included as a component of interest expense			$ 502,000			$ 994,000
Remaining borrowing capacity					25,000,000		25,000,000
Trust Preferred Capital Notes
Subordinated Borrowing [Line Items]
Trust preferred capital notes principal balance					150,500,000
Remaining fair value discount on acquired notes					14,500,000
Long-term debt borrowings					155,159,000
Subordinated Debt
Subordinated Borrowing [Line Items]
Remaining fair value discount on acquired notes					$ 1,300,000		$ 1,400,000
Stated percentage on debt instrument				5.00%
Debt maturity date				Dec. 15, 2021	Dec. 15, 2026
Long-term debt borrowings					$ 158,500,000
PPPLF Advances
Subordinated Borrowing [Line Items]
Stated percentage on debt instrument					0.35%
Long-term debt borrowings					$ 189,941,000
Remaining borrowing capacity					$ 1,500,000,000
LIBOR | Subordinated Debt
Subordinated Borrowing [Line Items]
Three-month LIBOR rate plus					3.175%
StellarOne Bank and Xenith [Member] | Trust Preferred Capital Notes
Subordinated Borrowing [Line Items]
Trust preferred capital notes principal balance					$ 58,500,000
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								$ 259,000
Stated percentage on debt instrument								6.75%
Access National Bank
Subordinated Borrowing [Line Items]
Trust preferred capital notes principal balance	$ 5,000,000

BORROWINGS (Trust Preferred Cap

BORROWINGS (Trust Preferred Capital Notes Qualify for Tier 1 Capital) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Investment	$ 551,943	$ 378,255
Trust Preferred Capital Notes
Debt Instrument [Line Items]
Trust preferred capital notes principal balance	150,500
Investment	4,659
Statutory Trust I
Debt Instrument [Line Items]
Trust preferred capital notes principal balance	22,500
Investment	$ 696
Rate	3.05%
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
Investment	$ 1,114
Rate	1.70%
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
Investment	$ 619
Rate	3.03%
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
Investment	$ 372
Rate	3.40%
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
Investment	$ 248
Rate	3.40%
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
Investment	$ 217
Rate	2.95%
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
Investment	$ 464
Rate	1.80%
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
Investment	$ 774
Rate	1.85%
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
Investment	$ 155
Rate	3.15%
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	6 Months Ended	12 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Advances from the FHLB
Advance Amount	$ 560,000	$ 780,000
Interest Rate Floor [Member]
Advances from the FHLB
Interest Rate	0.00%	0.00%
Adjustable Rate Credit One
Advances from the FHLB
Interest Rate		1.16%
Maturity Date	Aug. 17, 2029	Aug. 17, 2029
Advance Amount	$ 50,000	$ 50,000
Adjustable Rate Credit Two
Advances from the FHLB
Interest Rate		1.41%
Maturity Date		May 15, 2024
Advance Amount		$ 200,000
Adjustable Rate Credit Three
Advances from the FHLB
Interest Rate		1.16%
Maturity Date	May 22, 2029	May 22, 2029
Advance Amount	$ 150,000	$ 150,000
Adjustable Rate Credit Four
Advances from the FHLB
Interest Rate		1.16%
Maturity Date	May 30, 2029	May 30, 2029
Advance Amount	$ 50,000	$ 50,000
Adjustable Rate Credit Five
Advances from the FHLB
Interest Rate		1.16%
Maturity Date	Jun. 21, 2029	Jun. 21, 2029
Advance Amount	$ 100,000	$ 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%
Maturity Date		May 18, 2020
Advance Amount		$ 20,000
Fixed Rate Credit
Advances from the FHLB
Interest Rate	1.54%	1.54%
Maturity Date	Oct. 2, 2020	Oct. 2, 2020
Advance Amount	$ 10,000	$ 10,000
LIBOR | Adjustable Rate Credit One
Advances from the FHLB
Spread on LIBOR	(0.75%)	(0.75%)
LIBOR | Adjustable Rate Credit Two
Advances from the FHLB
Spread on LIBOR		(0.50%)
LIBOR | Adjustable Rate Credit Three
Advances from the FHLB
Spread on LIBOR	(0.75%)	(0.75%)
LIBOR | Adjustable Rate Credit Four
Advances from the FHLB
Spread on LIBOR	(0.75%)	(0.75%)
LIBOR | Adjustable Rate Credit Five
Advances from the FHLB
Spread on LIBOR	(0.75%)	(0.75%)

BORROWINGS (Contractual Maturit

BORROWINGS (Contractual Maturities of Long-Term Debt) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Premium (Discount)
For the remaining six months of 2020	$ (456)
2021	(1,008)
2022	(1,030)
2023	(1,053)
2024	(1,078)
Thereafter	(11,161)
Total Long-term borrowings	(15,786)
Total Long-term Borrowings
For the remaining six months of 2020	9,544
2021	(1,008)
2022	188,911
2023	(1,053)
2024	(1,078)
Thereafter	852,498
Long-term Debt	1,047,814	$ 1,077,495
Trust Preferred Capital Notes
Total Long-term Borrowings, Gross
For the remaining six months of 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
For the remaining six months of 2020	0
2021	0
2022	0
2023	0
2024	0
Thereafter	158,500
Total Long-term borrowings	158,500
PPPLF Advances
Total Long-term Borrowings, Gross
2022	189,941
Total Long-term borrowings	189,941
FHLB Advances
Total Long-term Borrowings, Gross
For the remaining six months of 2020	10,000
2021	0
2022	0
2023	0
2024	0
Thereafter	550,000
Total Long-term borrowings	$ 560,000

COMMITMENTS AND CONTINGENCIES_2

COMMITMENTS AND CONTINGENCIES (Narrative) (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Deposits with other financial institutions	$ 342.9
Uninsured deposits with other financial institutions	68.2
Reserve for Off-balance Sheet Activities
Off-balance sheet credit risks, amount, liability	12.9	$ 2.6
Cash Flow Hedging
Deposits with other financial institutions serves as collateral for cash flow hedge	$ 271.6

COMMITMENTS AND CONTINGENCIES_3

COMMITMENTS AND CONTINGENCIES (Balances of Commitments and Contingencies) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Commitments with off-balance sheet risk:
Total commitments with off-balance sheet risk	$ 5,130,868	$ 4,900,930
Commitments to Extend Credit
Commitments with off-balance sheet risk:
Total commitments with off-balance sheet risk	4,968,910	4,691,272
Standby Letters of Credit
Commitments with off-balance sheet risk:
Total commitments with off-balance sheet risk	$ 161,958	$ 209,658

COMMITMENTS AND CONTINGENCIES_4

COMMITMENTS AND CONTINGENCIES (Schedule of Securities Pledged as Collateral) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Financial Instruments Owned and Pledged as Collateral [Line Items]
Cash	$ 271,551	$ 116,839
Loans	4,702,389	4,139,672
Total pledged assets	6,149,386	5,300,858
Available-for-sale Securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities pledged	734,235	733,995
Held-to-maturity Securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities pledged	441,211	310,352
Public deposits
Financial Instruments Owned and Pledged as Collateral [Line Items]
Cash	0	0
Loans	0	0
Total pledged assets	887,043	759,362
Public deposits | Available-for-sale Securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities pledged	454,733	467,266
Public deposits | Held-to-maturity Securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities pledged	432,310	292,096
Repurchase agreements
Financial Instruments Owned and Pledged as Collateral [Line Items]
Cash	0	0
Loans	0	0
Total pledged assets	93,551	86,901
Repurchase agreements | Available-for-sale Securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities pledged	93,551	79,299
Repurchase agreements | Held-to-maturity Securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities pledged	0	7,602
FHLB Advances
Financial Instruments Owned and Pledged as Collateral [Line Items]
Cash	0	0
Loans	4,193,380	3,846,934
Total pledged assets	4,250,914	3,910,746
FHLB Advances | Available-for-sale Securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities pledged	57,534	63,812
FHLB Advances | Held-to-maturity Securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities pledged	0	0
Fed Funds
Financial Instruments Owned and Pledged as Collateral [Line Items]
Cash	0	0
Loans	319,068	292,738
Total pledged assets	319,068	292,738
Fed Funds | Available-for-sale Securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities pledged	0	0
Fed Funds | Held-to-maturity Securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities pledged	0	0
Derivatives
Financial Instruments Owned and Pledged as Collateral [Line Items]
Cash	271,551	116,839
Loans	0	0
Total pledged assets	272,584	118,099
Derivatives | Available-for-sale Securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities pledged	1,033	1,260
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	136,285	133,012
Other purposes | Available-for-sale Securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities pledged	127,384	122,358
Other purposes | Held-to-maturity Securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities pledged	8,901	$ 10,654
PPPLF Advances
Financial Instruments Owned and Pledged as Collateral [Line Items]
Cash	0
Loans	189,941
Total pledged assets	189,941
PPPLF Advances | Available-for-sale Securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities pledged	0
PPPLF Advances | Held-to-maturity Securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities pledged	$ 0

DERIVATIVES (Narrative) (Detail

DERIVATIVES (Narrative) (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Derivatives, Fair Value [Line Items]
Carrying Amount of Hedged Asset/(Liabilities)	$ 50,000
Cash Flow Hedging
Derivatives, Fair Value [Line Items]
Unrealized gain within accumulated other comprehensive income, to be reclassified into earnings	1,800
Derivative, amount	0
Fair Value Hedging
Derivatives, Fair Value [Line Items]
Aggregate notional amount of the hedged items	77,200	$ 83,100
Fair value of aggregate notional amount of the hedged items, unrealized loss	6,200	2,000
Loans
Derivatives, Fair Value [Line Items]
Carrying Amount of Hedged Asset/(Liabilities)	77,172	83,078
Cumulative Amount of Basis Adjustments Included in the Carrying Amount of the Hedged Asset/(Liabilities)	6,131	1,972
Available-for-sale Securities
Derivatives, Fair Value [Line Items]
Fair value of aggregate notional amount of the hedged items, unrealized loss	8,300	4,100
Carrying Amount of Hedged Asset/(Liabilities)	191,589	206,799
Cumulative Amount of Basis Adjustments Included in the Carrying Amount of the Hedged Asset/(Liabilities)	8,309	4,072
Available-for-sale Securities | Fair Value Hedging
Derivatives, Fair Value [Line Items]
Aggregate notional amount of the hedged items	50,000	50,000
Fair value of aggregate notional amount of the hedged items, unrealized loss	$ 8,300	$ 4,100

DERIVATIVES (Summary of the Der

DERIVATIVES (Summary of the Derivatives) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Pay Fixed - Receive Floating Interest Rate Swaps | Not Designated as accounting hedges
Summary of the derivative designated as a cash flow hedge
Derivative, amount	$ 2,064,653	$ 1,575,149
Asset		753
Liabilities	194,707	53,592
Pay Floating - Receive Fixed Interest Rate Swaps | Not Designated as accounting hedges
Summary of the derivative designated as a cash flow hedge
Derivative, amount	2,064,653	1,575,149
Asset	194,707	53,592
Liabilities		753
Cash Flow Hedging
Summary of the derivative designated as a cash flow hedge
Derivative, amount	0
Cash Flow Hedging | Designated as accounting hedges
Summary of the derivative designated as a cash flow hedge
Derivative, amount	0	100,000
Asset	0	0
Liabilities	0	1,147
Fair Value Hedging | Designated as accounting hedges
Summary of the derivative designated as a cash flow hedge
Derivative, amount	127,172	133,078
Asset		182
Liabilities	$ 14,530	$ 6,256

DERIVATIVES (Summary of the Car

DERIVATIVES (Summary of the Carrying Value of the Company's Hedged Assets in Fair Value Hedges) (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Derivative [Line Items]
Carrying Amount of Hedged Asset/(Liabilities)	$ 50,000
Portfolio, last-of-layer, amortized cost	192,000	$ 207,000
Fair Value Hedging
Derivative [Line Items]
Fair value of aggregate notional amount of the hedged items, unrealized loss	6,200	2,000
Available-for-sale Securities
Derivative [Line Items]
Carrying Amount of Hedged Asset/(Liabilities)	191,589	206,799
Cumulative Amount of Basis Adjustments Included in the Carrying Amount of the Hedged Asset/(Liabilities)	8,309	4,072
Fair value of aggregate notional amount of the hedged items, unrealized loss	8,300	4,100
Available-for-sale Securities | Fair Value Hedging
Derivative [Line Items]
Fair value of aggregate notional amount of the hedged items, unrealized loss	8,300	4,100
Loans
Derivative [Line Items]
Carrying Amount of Hedged Asset/(Liabilities)	77,172	83,078
Cumulative Amount of Basis Adjustments Included in the Carrying Amount of the Hedged Asset/(Liabilities)	$ 6,131	$ 1,972

STOCKHOLDERS' EQUITY (Narrative

STOCKHOLDERS' EQUITY (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands	Jun. 09, 2020	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Accumulated Other Comprehensive Income (Loss) [Line Items]
Preferred stock, shares authorized		500,000		500,000		500,000
Shares issued and sold		17,250
Preferred stock, par value (in dollars per share)		$ 10		$ 10
Preferred stock, shares outstanding		17,250		17,250		0
Net proceeds from issuance of preferred stock				$ 166,363	$ 0
Reclassifications of unrealized gains (losses) on AFS		$ 10,339	$ 51	$ 12,275	$ 202
Depositary Shares
Accumulated Other Comprehensive Income (Loss) [Line Items]
Shares issued and sold	6,900,000
Number of shares to be purchased upon the exercise of options	900,000
Preferred stock, liquidation preference (usd per share)	$ 25
Series A Preferred Stock
Accumulated Other Comprehensive Income (Loss) [Line Items]
Number of preferred stock represented by each depositary share	The Series A preferred stock is represented by depositary shares, each representing a 1/400th ownership interest in a share of Series A preferred stock
Preferred stock, liquidation preference (usd per share)	$ 10,000
Net proceeds from issuance of preferred stock	$ 166,400

STOCKHOLDERS' EQUITY (Change in

STOCKHOLDERS' EQUITY (Change in Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2020	Jun. 30, 2019
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 2,425,450	$ 2,513,102	$ 2,459,465	$ 1,924,581	$ 2,513,102	$ 1,924,581
Other comprehensive income (loss)	12,975	12,754	19,670	18,670	25,729	38,340
Ending balance	2,618,226	2,425,450	2,512,295	2,459,465	2,618,226	2,512,295
Unrealized Gains (Losses) on AFS Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	51,035	37,877	14,047	(5,949)	37,877	(5,949)
Other comprehensive income (loss) before reclassification	21,019		22,151		35,706	42,233
Amounts reclassified from AOCI into earnings	(8,168)		(73)		(9,697)	(159)
Other comprehensive income (loss)	12,851		22,078		26,009	42,074
Ending balance	63,886	51,035	36,125	14,047	63,886	36,125
Unrealized Gains (Losses) for AFS Securities Transferred to HTM
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	70	75	90	95	75	95
Other comprehensive income (loss) before reclassification	0		0		0	0
Amounts reclassified from AOCI into earnings	(5)		(5)		(10)	(10)
Other comprehensive income (loss)	(5)		(5)		(10)	(10)
Ending balance	65	70	85	90	65	85
Change in Fair Value of Cash Flow Hedges
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	0	(782)	(4,733)	(3,393)	(782)	(3,393)
Other comprehensive income (loss) before reclassification	0		(2,595)		(699)	(4,055)
Amounts reclassified from AOCI into earnings	0		173		1,481	293
Other comprehensive income (loss)	0		(2,422)		782	(3,762)
Ending balance	0	0	(7,155)	(4,733)	0	(7,155)
Unrealized Gains (Losses) on BOLI
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(2,776)	(1,595)	(1,007)	(1,026)	(1,595)	(1,026)
Other comprehensive income (loss) before reclassification	0		0		(1,289)	0
Amounts reclassified from AOCI into earnings	129		19		237	38
Other comprehensive income (loss)	129		19		(1,052)	38
Ending balance	(2,647)	(2,776)	(988)	(1,007)	(2,647)	(988)
Accumulated Other Comprehensive Income (Loss)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	48,329	35,575	8,397	(10,273)	35,575	(10,273)
Other comprehensive income (loss) before reclassification	21,019		19,556		33,718	38,178
Amounts reclassified from AOCI into earnings	(8,044)		114		(7,989)	162
Other comprehensive income (loss)	12,975	12,754	19,670	18,670	25,729	38,340
Ending balance	$ 61,304	$ 48,329	$ 28,067	$ 8,397	$ 61,304	$ 28,067

FAIR VALUE MEASUREMENTS (Narrat

FAIR VALUE MEASUREMENTS (Narrative) (Details) item in Thousands, $ in Millions	6 Months Ended
	Jun. 30, 2020USD ($)item	Dec. 31, 2019USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Minimum number of market participants | item	4
Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value | $	$ 6.4	$ 11.9

FAIR VALUE MEASUREMENTS (Schedu

FAIR VALUE MEASUREMENTS (Schedule of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
ASSETS
Securities available for sale, at fair value	$ 2,019,164	$ 1,945,445
Loans held for sale, at fair value	55,067	55,405
Fair value hedges		182
LIABILITIES
Cash flow hedges		1,147
Fair value hedges	14,530	6,256
Quoted Prices in Active Markets for Identical Assets Level 1
ASSETS
Securities available for sale, at fair value	0	0
Loans held for sale, at fair value	0	0
Fair value hedges		0
LIABILITIES
Cash flow hedges		0
Fair value hedges	0	0
Significant Other Observable Inputs Level 2
ASSETS
Securities available for sale, at fair value	2,019,164	1,945,445
Loans held for sale, at fair value	55,067	55,405
Fair value hedges		182
LIABILITIES
Cash flow hedges		1,147
Fair value hedges	14,530	6,256
Significant Unobservable Inputs Level 3
ASSETS
Securities available for sale, at fair value	0	0
Loans held for sale, at fair value	0	0
Fair value hedges		0
LIABILITIES
Cash flow hedges		0
Fair value hedges	0	0
Recurring
ASSETS
Loans held for sale, at fair value	55,067	55,405
Fair value hedges		182
LIABILITIES
Cash flow hedges		1,147
Fair value hedges	14,530	6,256
Recurring | Quoted Prices in Active Markets for Identical Assets Level 1
ASSETS
Loans held for sale, at fair value	0	0
Fair value hedges		0
LIABILITIES
Cash flow hedges		0
Fair value hedges	0	0
Recurring | Significant Other Observable Inputs Level 2
ASSETS
Loans held for sale, at fair value	55,067	55,405
Fair value hedges		182
LIABILITIES
Cash flow hedges		1,147
Fair value hedges	14,530	6,256
Recurring | Significant Unobservable Inputs Level 3
ASSETS
Loans held for sale, at fair value	0	0
Fair value hedges		0
LIABILITIES
Cash flow hedges		0
Fair value hedges	0	0
U.S. government and agency securities
ASSETS
Securities available for sale, at fair value	14,646	21,320
U.S. government and agency securities | Recurring
ASSETS
Securities available for sale, at fair value	14,646	21,320
U.S. government and agency securities | Recurring | Quoted Prices in Active Markets for Identical Assets Level 1
ASSETS
Securities available for sale, at fair value	0
U.S. government and agency securities | Recurring | Significant Other Observable Inputs Level 2
ASSETS
Securities available for sale, at fair value	14,646	21,320
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	539,527	447,091
Obligations of states and political subdivisions | Recurring
ASSETS
Securities available for sale, at fair value	539,527	447,091
Obligations of states and political subdivisions | Recurring | Quoted Prices in Active Markets for Identical Assets Level 1
ASSETS
Securities available for sale, at fair value	0	0
Obligations of states and political subdivisions | Recurring | Significant Other Observable Inputs Level 2
ASSETS
Securities available for sale, at fair value	539,527	447,091
Obligations of states and political subdivisions | Recurring | Significant Unobservable Inputs Level 3
ASSETS
Securities available for sale, at fair value	0	0
Corporate and other bonds
ASSETS
Securities available for sale, at fair value	131,350	135,959
Corporate and other bonds | Recurring
ASSETS
Securities available for sale, at fair value	131,350	135,959
Corporate and other bonds | Recurring | Quoted Prices in Active Markets for Identical Assets Level 1
ASSETS
Securities available for sale, at fair value	0	0
Corporate and other bonds | Recurring | Significant Other Observable Inputs Level 2
ASSETS
Securities available for sale, at fair value	131,350	135,959
Corporate and other bonds | Recurring | Significant Unobservable Inputs Level 3
ASSETS
Securities available for sale, at fair value	0	0
Total mortgage-back securities | Recurring
ASSETS
Securities available for sale, at fair value	1,330,542	1,337,996
Total mortgage-back securities | Recurring | Quoted Prices in Active Markets for Identical Assets Level 1
ASSETS
Securities available for sale, at fair value	0	0
Total mortgage-back securities | Recurring | Significant Other Observable Inputs Level 2
ASSETS
Securities available for sale, at fair value	1,330,542	1,337,996
Total mortgage-back securities | Recurring | Significant Unobservable Inputs Level 3
ASSETS
Securities available for sale, at fair value	0	0
Other securities
ASSETS
Securities available for sale, at fair value	3,099	3,079
Other securities | Recurring
ASSETS
Securities available for sale, at fair value	3,099	3,079
Other securities | Recurring | Quoted Prices in Active Markets for Identical Assets Level 1
ASSETS
Securities available for sale, at fair value	0	0
Other securities | Recurring | Significant Other Observable Inputs Level 2
ASSETS
Securities available for sale, at fair value	3,099	3,079
Other securities | Recurring | Significant Unobservable Inputs Level 3
ASSETS
Securities available for sale, at fair value	0	0
Interest Rate Swap
ASSETS
Interest rate swap	194,707	54,345
LIABILITIES
Interest rate swap	194,707	54,345
Interest Rate Swap | Quoted Prices in Active Markets for Identical Assets Level 1
ASSETS
Interest rate swap	0	0
LIABILITIES
Interest rate swap	0	0
Interest Rate Swap | Significant Other Observable Inputs Level 2
ASSETS
Interest rate swap	194,707	54,345
LIABILITIES
Interest rate swap	194,707	54,345
Interest Rate Swap | Significant Unobservable Inputs Level 3
ASSETS
Interest rate swap	0	0
LIABILITIES
Interest rate swap	0	0
Interest Rate Swap | Recurring
ASSETS
Interest rate swap	194,707	54,345
LIABILITIES
Interest rate swap	194,707	54,345
Interest Rate Swap | Recurring | 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 | Recurring | Significant Other Observable Inputs Level 2
ASSETS
Interest rate swap	194,707	54,345
LIABILITIES
Interest rate swap	194,707	54,345
Interest Rate Swap | Recurring | Significant Unobservable Inputs Level 3
ASSETS
Interest rate swap	0	0
LIABILITIES
Interest rate swap	$ 0	$ 0

FAIR VALUE MEASUREMENTS (Carryi

FAIR VALUE MEASUREMENTS (Carrying Values and Estimated Fair Values of the Company's Financial Instruments) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
ASSETS
Cash and cash equivalents	$ 842,020	$ 436,032
Securities available for sale, at fair value	2,019,164	1,945,445
HTM securities	613,429	603,503
Restricted stock	105,832	130,848
Loans held for sale, at fair value	55,067	55,405
Net loans	13,970,248	12,449,505
Derivatives:
Fair value hedges		182
Accrued interest receivable	62,330	52,721
Bank owned life insurance	327,075	322,917
LIABILITIES
Deposits	15,653,360	13,349,943
Borrowings	1,093,558	1,479,606
Accrued interest payable	4,495	6,108
Derivatives:
Cash flow hedges		1,147
Fair value hedges	14,530	6,256
Quoted Prices in Active Markets for Identical Assets Level 1
ASSETS
Cash and cash equivalents	842,020	436,032
Securities available for sale, at fair value	0	0
HTM securities	0	0
Restricted stock	0	0
Loans held for sale, at fair value	0	0
Net loans	0	0
Derivatives:
Fair value hedges		0
Accrued interest receivable	0	0
Bank owned life insurance	0	0
LIABILITIES
Deposits	0	0
Borrowings	0	0
Accrued interest payable	0	0
Derivatives:
Cash flow hedges		0
Fair value hedges	0	0
Significant Other Observable Inputs Level 2
ASSETS
Cash and cash equivalents	0	0
Securities available for sale, at fair value	2,019,164	1,945,445
HTM securities	600,146	585,820
Restricted stock	105,832	130,848
Loans held for sale, at fair value	55,067	55,405
Net loans	0	0
Derivatives:
Fair value hedges		182
Accrued interest receivable	62,330	52,721
Bank owned life insurance	327,075	322,917
LIABILITIES
Deposits	15,653,360	13,349,943
Borrowings	1,093,558	1,479,606
Accrued interest payable	4,495	6,108
Derivatives:
Cash flow hedges		1,147
Fair value hedges	14,530	6,256
Significant Unobservable Inputs Level 3
ASSETS
Cash and cash equivalents	0	0
Securities available for sale, at fair value	0	0
HTM securities	13,283	17,683
Restricted stock	0	0
Loans held for sale, at fair value	0	0
Net loans	13,970,248	12,449,505
Derivatives:
Fair value hedges		0
Accrued interest receivable	0	0
Bank owned life insurance	0	0
LIABILITIES
Deposits	0	0
Borrowings	0	0
Accrued interest payable	0	0
Derivatives:
Cash flow hedges		0
Fair value hedges	0	0
Interest Rate Swap
Derivatives:
Interest rate swap	194,707	54,345
Derivatives:
Interest rate swap	194,707	54,345
Interest Rate Swap | Quoted Prices in Active Markets for Identical Assets Level 1
Derivatives:
Interest rate swap	0	0
Derivatives:
Interest rate swap	0	0
Interest Rate Swap | Significant Other Observable Inputs Level 2
Derivatives:
Interest rate swap	194,707	54,345
Derivatives:
Interest rate swap	194,707	54,345
Interest Rate Swap | Significant Unobservable Inputs Level 3
Derivatives:
Interest rate swap	0	0
Derivatives:
Interest rate swap	0	0
Carrying Value
ASSETS
Cash and cash equivalents	842,020	436,032
Securities available for sale, at fair value	2,019,164	1,945,445
HTM securities	547,561	555,144
Restricted stock	105,832	130,848
Loans held for sale, at fair value	55,067	55,405
Net loans	14,138,669	12,568,642
Derivatives:
Fair value hedges		182
Accrued interest receivable	62,330	52,721
Bank owned life insurance	327,075	322,917
LIABILITIES
Deposits	15,605,139	13,304,981
Borrowings	1,125,030	1,513,748
Accrued interest payable	4,495	6,108
Derivatives:
Cash flow hedges		1,147
Fair value hedges	14,530	6,256
Carrying Value | Interest Rate Swap
Derivatives:
Interest rate swap	194,707	54,345
Derivatives:
Interest rate swap	$ 194,707	$ 54,345

REVENUE (Disaggregation of Reve

REVENUE (Disaggregation of Revenue) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Disaggregation of Revenue
Mortgage banking income	$ 5,826,000	$ 2,785,000	$ 7,847,000	$ 4,240,000
Gains on securities transactions	10,339,000	51,000	12,275,000	202,000
Bank owned life insurance income	2,027,000	2,075,000	4,076,000	4,129,000
Loan-related interest rate swap fees	5,484,000	3,716,000	9,432,000	5,176,000
Other operating income	(1,240,000)	1,440,000	902,000	2,337,000
Total noninterest income	35,932,000	30,578,000	64,838,000	55,515,000
Noninterest income in Scope of Topic 606
Disaggregation of Revenue
Other operating income	645,000	1,100,000	1,200,000	1,900,000
Overdraft fees | Noninterest income in Scope of Topic 606
Disaggregation of Revenue
Revenue from contract with customer	3,245,000	6,045,000	9,010,000	11,827,000
Maintenance fees & other | Noninterest income in Scope of Topic 606
Disaggregation of Revenue
Revenue from contract with customer	1,685,000	1,454,000	3,498,000	2,829,000
Other service charges, commissions and fees | Noninterest income in Scope of Topic 606
Disaggregation of Revenue
Revenue from contract with customer	1,354,000	1,702,000	2,978,000	3,367,000
Interchange fees | Noninterest income in Scope of Topic 606
Disaggregation of Revenue
Revenue from contract with customer	1,697,000	5,612,000	3,321,000	10,656,000
Trust asset management fees | Noninterest income in Scope of Topic 606
Disaggregation of Revenue
Revenue from contract with customer	2,470,000	1,976,000	5,298,000	3,315,000
Registered advisor management fees | Noninterest income in Scope of Topic 606
Disaggregation of Revenue
Revenue from contract with customer	2,091,000	2,825,000	4,178,000	5,701,000
Brokerage management fees | Noninterest income in Scope of Topic 606
Disaggregation of Revenue
Revenue from contract with customer	$ 954,000	$ 897,000	$ 2,023,000	$ 1,736,000

EARNINGS PER SHARE (Narrative)

EARNINGS PER SHARE (Narrative) (Details) $ in Thousands	3 Months Ended
	Jun. 30, 2020USD ($)
Earnings Per Share [Abstract]
Issuance of preferred stock	$ 166,363

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	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Net Income:
Income from continuing operations	$ 30,709	$ 48,908	$ 37,798	$ 84,623
Income (loss) from discontinued operations	0	(85)	0	(170)
Net Income available to common shareholders	$ 30,709	$ 48,823	$ 37,798	$ 84,453
Weighted average shares outstanding, basic (in shares)	78,711,765	82,062,585	79,001,058	79,282,830
Dilutive effect of stock awards and warrants	11,000	63,000	19,000	62,000
Weighted average shares outstanding, diluted	78,722,690	82,125,194	79,020,036	79,344,573
Basic EPS:
EPS from continuing operations (dollar per share)	$ 0.39	$ 0.59	$ 0.48	$ 1.06
EPS from discontinued operations (dollar per share)	0	0	0	0
EPS available to common stockholders (dollar per share)	0.39	0.59	0.48	1.06
Diluted EPS:
EPS from continuing operations (dollar per share)	0.39	0.59	0.48	1.06
EPS from discontinued operations (dollar per share)	0	0	0	0
EPS available to common stockholders (dollar per share)	$ 0.39	$ 0.59	$ 0.48	$ 1.06

SEGMENT REPORTING & DISCONTIN_3

SEGMENT REPORTING & DISCONTINUED OPERATIONS (Narrative) (Details)	Dec. 31, 2019USD ($)
Segment Reporting [Abstract]
Assets of discontinued operations	$ 668,000
Liabilities of discontinued operations	$ 640,000

SEGMENT REPORTING & DISCONTIN_4

SEGMENT REPORTING & DISCONTINUED OPERATIONS (Information About Reportable Segments and Reconciliation) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Segment Reporting Information [Line Items]
Net interest income	$ 137,305	$ 138,594	$ 272,313	$ 266,141
Provision for credit losses	34,200	5,300	94,396	9,092
Net interest income after provision for credit losses	103,105	133,294	177,917	257,049
Noninterest income	35,932	30,578	64,838	55,515
Noninterest expenses	102,814	105,608	198,459	212,335
Income before income taxes	0	(114)	0	(229)
Income tax expense (benefit)	0	(29)	0	(59)
Income (loss) on discontinued operations	$ 0	(85)	$ 0	(170)
Mortgage | Discontinued Operations
Segment Reporting Information [Line Items]
Net interest income		0		0
Provision for credit losses		0		0
Net interest income after provision for credit losses		0		0
Noninterest income		0		1
Noninterest expenses		114		230
Income before income taxes		(114)		(229)
Income tax expense (benefit)		(29)		(59)
Income (loss) on discontinued operations		$ (85)		$ (170)

SUBSEQUENT EVENTS (Narrative) (

SUBSEQUENT EVENTS (Narrative) (Details) - $ / shares	Jul. 24, 2020	Jun. 09, 2020	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2020	Jun. 30, 2019
Subsequent Event [Line Items]
Dividends on common stock (in dollars per share)			$ 0.25	$ 0.25	$ 0.23	$ 0.23	$ 0.50	$ 0.46
Subsequent Event
Subsequent Event [Line Items]
Dividends payable, date declared	Jul. 24, 2020
Common Stock, Class A | Subsequent Event
Subsequent Event [Line Items]
Dividends on common stock (in dollars per share)	$ 0.25
Dividends payable, date to be paid	Aug. 21, 2020
Dividends payable, date of record	Aug. 7, 2020
Depositary Shares | Subsequent Event
Subsequent Event [Line Items]
Dividends on preferred stock (in dollars per share)	$ 0.39
Series A Preferred Stock
Subsequent Event [Line Items]
Number of preferred stock represented by each depositary share		The Series A preferred stock is represented by depositary shares, each representing a 1/400th ownership interest in a share of Series A preferred stock
Series A Preferred Stock | Subsequent Event
Subsequent Event [Line Items]
Dividends on preferred stock (in dollars per share)	$ 156.60
Dividends payable, date to be paid	Sep. 1, 2020
Dividends payable, date of record	Aug. 14, 2020