LOANS - Loans Evaluated for Impairment (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Allowance for loan losses
Total loans	$ 2,729,417	$ 2,641,092
Total commercial real estate
Allowance for loan losses
Total loans	982,070	930,661
Total commercial and industrial
Allowance for loan losses
Total loans	539,442	423,291
Total residential real estate
Allowance for loan losses
Total loans	1,083,708	1,151,857
Total consumer
Allowance for loan losses
Total loans	124,197	135,283
Business Activities Loans
Allowance for loan losses
Individually evaluated for impairment	5,940	7,950
Collectively evaluated	2,013,662	1,827,280
Total loans	2,019,602	1,835,230
Business Activities Loans \| Total commercial real estate
Allowance for loan losses
Individually evaluated for impairment	2,482	3,964
Collectively evaluated	780,563	693,474
Total loans	783,045	697,438
Business Activities Loans \| Total commercial and industrial
Allowance for loan losses
Individually evaluated for impairment	1,049	1,353
Collectively evaluated	441,960	325,217
Total loans	443,009	326,570
Business Activities Loans \| Total residential real estate
Allowance for loan losses
Individually evaluated for impairment	2,396	2,620
Collectively evaluated	723,054	738,067
Total loans	725,450	740,687
Business Activities Loans \| Total consumer
Allowance for loan losses
Individually evaluated for impairment	13	13
Collectively evaluated	68,085	70,522
Total loans	68,098	70,535
Acquired Loans
Allowance for loan losses
Individually evaluated for impairment	3,683	1,675
Purchased credit impaired	14,770	18,553
Collectively evaluated	691,362	785,634
Total loans	709,815	805,862
Acquired Loans \| Total commercial real estate
Allowance for loan losses
Individually evaluated for impairment	2,402	258
Purchased credit impaired	7,262	8,673
Collectively evaluated	189,361	224,292
Total loans	199,025	233,223
Acquired Loans \| Total commercial and industrial
Allowance for loan losses
Individually evaluated for impairment	356	385
Purchased credit impaired	1,980	2,932
Collectively evaluated	94,097	93,404
Total loans	96,433	96,721
Acquired Loans \| Total residential real estate
Allowance for loan losses
Individually evaluated for impairment	925	1,032
Purchased credit impaired	4,715	5,591
Collectively evaluated	352,618	404,547
Total loans	358,258	411,170
Acquired Loans \| Total consumer
Allowance for loan losses
Purchased credit impaired	813	1,357
Collectively evaluated	55,286	63,391
Total loans	$ 56,099	$ 64,748

The carrying amount as of the balance sheet date of loans not accounted for as debt securities, with evidence of deterioration of credit quality since origination that were acquired by completion of a transfer, for which it was deemed probable at acquisition that the investor would be unable to collect all contractually required payments, and to which the income recognition total model was not applied.

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The balance of financing receivables that were collectively evaluated for impairment.

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

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