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LOANS - Non-accrual Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	$ 39,640	$ 32,425
Business Activities Loans
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	32,536	26,478
Acquired Loans
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	7,104	5,947
Commercial real estate loans
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	20,119	20,371
Commercial real estate loans | Business Activities Loans
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	15,623	17,840
Commercial real estate loans | Acquired Loans
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	4,496	2,531
Commercial real estate loans | Construction
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	0	0
Commercial real estate loans | Construction | Business Activities Loans
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	0	0
Commercial real estate loans | Construction | Acquired Loans
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	0	0
Commercial real estate loans | Commercial real estate
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	20,119	20,371
Commercial real estate loans | Commercial real estate | Business Activities Loans
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	15,623	17,840
Commercial real estate loans | Commercial real estate | Acquired Loans
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	4,496	2,531
Commercial and industrial
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	11,373	6,003
Commercial and industrial | Business Activities Loans
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	10,540	4,632
Commercial and industrial | Acquired Loans
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	833	1,371
Residential
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	3,343	2,217
Residential | Business Activities Loans
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	2,550	1,374
Residential | Acquired Loans
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	793	843
Residential | Construction
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	0	0
Residential | Construction | Business Activities Loans
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	0	0
Residential | Construction | Acquired Loans
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	0	0
Residential | 1-4 family
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	3,343	2,217
Residential | 1-4 family | Business Activities Loans
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	2,550	1,374
Residential | 1-4 family | Acquired Loans
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	793	843
Consumer
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	4,805	3,834
Consumer | Business Activities Loans
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	3,823	2,632
Consumer | Acquired Loans
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	982	1,202
Consumer | Home equity
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	1,812	1,684
Consumer | Home equity | Business Activities Loans
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	1,095	933
Consumer | Home equity | Acquired Loans
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	717	751
Consumer | Auto and other
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	2,993	2,150
Consumer | Auto and other | Business Activities Loans
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	2,728	1,699
Consumer | Auto and other | Acquired Loans
Financing Receivable, Past Due [Line Items]
Total non-accrual loans	$ 265	$ 451

X

- Definition

Amount of financing receivable on nonaccrual status.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118936363&loc=d3e5111-111524

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 16
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919258-210447

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