Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss.

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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Amount of expense related to estimated loss from loan and lease transactions.

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LOANS - Allowance for Loan Losses Activity and Allocation to Loan Segments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Dec. 31, 2020
Activity in the allowance for loan losses
Balance	$ 55,395	$ 24,060
Provision (credit) for loan losses	91	3,749
Charge-offs	(240)	(1,724)
Recoveries	138	304
Balance	55,384	26,389
Allocation of the allowance to loan segments
Total loans			$ 3,461,479	$ 3,494,642
Total allowance for loan losses	55,395	26,389	55,384	55,395
Impaired loans
Activity in the allowance for loan losses
Balance	2,678
Balance	3,903
Allocation of the allowance to loan segments
Total loans			42,606	46,256
Total allowance for loan losses	2,678		3,903	2,678
Non-impaired loans
Activity in the allowance for loan losses
Balance	52,717
Balance	51,481
Allocation of the allowance to loan segments
Total loans			3,418,873	3,448,386
Total allowance for loan losses	52,717		51,481	52,717
Residential
Activity in the allowance for loan losses
Balance	7,419	3,178
Provision (credit) for loan losses	(221)	(49)
Recoveries	71	48
Balance	7,269	3,177
Allocation of the allowance to loan segments
Total loans			1,062,229	1,105,823
Total allowance for loan losses	7,269	3,177	7,269	7,419
Residential \| Impaired loans
Activity in the allowance for loan losses
Balance	802
Balance	720
Allocation of the allowance to loan segments
Total loans			22,033	24,384
Total allowance for loan losses	802		720	802
Residential \| Non-impaired loans
Activity in the allowance for loan losses
Balance	6,617
Balance	6,549
Allocation of the allowance to loan segments
Total loans			1,040,196	1,081,439
Total allowance for loan losses	6,617		6,549	6,617
Commercial
Allocation of the allowance to loan segments
Total loans			2,170,971	2,114,989
Commercial \| Commercial real estate
Activity in the allowance for loan losses
Balance	34,765	12,875
Provision (credit) for loan losses	218	2,940
Charge-offs		(1,174)
Recoveries	4	1
Balance	34,987	14,642
Allocation of the allowance to loan segments
Total loans			1,559,056	1,551,265
Total allowance for loan losses	34,987	14,642	34,987	34,765
Commercial \| Commercial real estate \| Impaired loans
Activity in the allowance for loan losses
Balance	1,845
Balance	1,797
Allocation of the allowance to loan segments
Total loans			12,502	12,513
Total allowance for loan losses	1,845		1,797	1,845
Commercial \| Commercial real estate \| Non-impaired loans
Activity in the allowance for loan losses
Balance	32,920
Balance	33,190
Allocation of the allowance to loan segments
Total loans			1,546,554	1,538,752
Total allowance for loan losses	32,920		33,190	32,920
Commercial \| Commercial construction
Activity in the allowance for loan losses
Balance	1,955	2,526
Provision (credit) for loan losses	282	(4)
Balance	2,237	2,522
Allocation of the allowance to loan segments
Total loans			112,187	99,331
Total allowance for loan losses	2,237	2,522	2,237	1,955
Commercial \| Commercial construction \| Non-impaired loans
Activity in the allowance for loan losses
Balance	1,955
Balance	2,237
Allocation of the allowance to loan segments
Total loans			112,187	99,331
Total allowance for loan losses	1,955		2,237	1,955
Commercial \| Commercial and industrial
Activity in the allowance for loan losses
Balance	5,311	2,977
Provision (credit) for loan losses	1,494	(159)
Charge-offs	(185)	(297)
Recoveries	7	219
Balance	6,627	2,740
Allocation of the allowance to loan segments
Total loans			499,728	464,393
Total allowance for loan losses	6,627	2,740	6,627	5,311
Commercial \| Commercial and industrial \| Impaired loans
Activity in the allowance for loan losses
Balance	31
Balance	1,386
Allocation of the allowance to loan segments
Total loans			8,071	9,359
Total allowance for loan losses	31		1,386	31
Commercial \| Commercial and industrial \| Non-impaired loans
Activity in the allowance for loan losses
Balance	5,280
Balance	5,241
Allocation of the allowance to loan segments
Total loans			491,657	455,034
Total allowance for loan losses	5,280		5,241	5,280
Consumer loans
Activity in the allowance for loan losses
Balance	2,475	1,010
Provision (credit) for loan losses	(412)	691
Charge-offs	(55)	(253)
Recoveries	56	36
Balance	2,064	1,484
Allocation of the allowance to loan segments
Total loans			228,279	273,830
Total allowance for loan losses	2,064	1,484	2,064	2,475
Consumer loans \| Non-impaired loans
Activity in the allowance for loan losses
Balance	2,475
Balance	2,064
Allocation of the allowance to loan segments
Total loans			228,279	273,830
Total allowance for loan losses	2,475		2,064	2,475
Unallocated
Activity in the allowance for loan losses
Balance	3,470	1,494
Provision (credit) for loan losses	(1,270)	330
Balance	2,200	1,824
Allocation of the allowance to loan segments
Total allowance for loan losses	2,200	$ 1,824	2,200	3,470
Unallocated \| Non-impaired loans
Activity in the allowance for loan losses
Balance	3,470
Balance	2,200
Allocation of the allowance to loan segments
Total allowance for loan losses	$ 3,470		$ 2,200	$ 3,470