LOANS - Loans Evaluated for Impairment (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Loans receivable: balance at end of period
Total	$ 2,526,959	$ 2,490,227
Commercial real estate
Loans receivable: balance at end of period
Total	821,567	826,699
Commercial and industrial
Loans receivable: balance at end of period
Total	409,937	404,870
Residential real estate
Loans receivable: balance at end of period
Total	1,184,053	1,144,698
Consumer
Loans receivable: balance at end of period
Total	111,402	113,960
Business Activities Loans
Loans receivable: balance at end of period
Individually evaluated for impairment	13,273	13,855
Collectively evaluated	1,682,596	1,617,042
Total	1,695,869	1,630,897
Business Activities Loans \| Commercial real estate
Loans receivable: balance at end of period
Individually evaluated for impairment	9,204	9,835
Collectively evaluated	570,729	569,899
Total	579,933	579,734
Business Activities Loans \| Commercial and industrial
Loans receivable: balance at end of period
Individually evaluated for impairment	1,361	1,445
Collectively evaluated	323,642	312,217
Total	325,003	313,662
Business Activities Loans \| Residential real estate
Loans receivable: balance at end of period
Individually evaluated for impairment	2,695	2,562
Collectively evaluated	720,730	667,627
Total	723,425	670,189
Business Activities Loans \| Consumer
Loans receivable: balance at end of period
Individually evaluated for impairment	13	13
Collectively evaluated	67,495	67,299
Total	67,508	67,312
Acquired Loans
Loans receivable: balance at end of period
Individually evaluated for impairment	1,322	1,358
Purchased credit impaired	9,975	10,106
Collectively evaluated	819,793	847,866
Total	831,090	859,330
Acquired Loans \| Commercial real estate
Loans receivable: balance at end of period
Individually evaluated for impairment	188	188
Purchased credit impaired	6,375	6,307
Collectively evaluated	235,071	240,470
Total	241,634	246,965
Acquired Loans \| Commercial and industrial
Loans receivable: balance at end of period
Individually evaluated for impairment	405	426
Purchased credit impaired	466	679
Collectively evaluated	84,063	90,103
Total	84,934	91,208
Acquired Loans \| Residential real estate
Loans receivable: balance at end of period
Individually evaluated for impairment	729	744
Purchased credit impaired	3,112	3,095
Collectively evaluated	456,787	470,670
Total	460,628	474,509
Acquired Loans \| Consumer
Loans receivable: balance at end of period
Individually evaluated for impairment	0	0
Purchased credit impaired	22	25
Collectively evaluated	43,872	46,623
Total	$ 43,894	$ 46,648

Financing Receivable, Purchased Credit-Impaired Loans

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (h)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524

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- Definition

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

+ References

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- Definition

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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=82891408&loc=d3e4428-111522

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- References

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