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LOANS - Summary of Total Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	$ 2,526,959	$ 2,490,227
Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	1,695,869	1,630,897
Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	831,090	859,330
Total commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	821,567	826,699
Total commercial real estate | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	579,933	579,734
Total commercial real estate | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	241,634	246,965
Total commercial real estate | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	37,633	26,644
Total commercial real estate | Construction and land development | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	34,782	23,754
Total commercial real estate | Construction and land development | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	2,851	2,890
Total commercial real estate | Other commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	783,934	800,055
Total commercial real estate | Other commercial real estate | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	545,151	555,980
Total commercial real estate | Other commercial real estate | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	238,783	244,075
Total commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	409,937	404,870
Total commercial and industrial | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	325,003	313,662
Total commercial and industrial | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	84,934	91,208
Total commercial and industrial | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	282,977	287,227
Total commercial and industrial | Commercial | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	236,068	234,757
Total commercial and industrial | Commercial | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	46,909	52,470
Total commercial and industrial | Agricultural
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	22,208	22,317
Total commercial and industrial | Agricultural | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	22,208	22,317
Total commercial and industrial | Agricultural | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	0	0
Total commercial and industrial | Tax exempt
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	104,752	95,326
Total commercial and industrial | Tax exempt | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	66,727	56,588
Total commercial and industrial | Tax exempt | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	38,025	38,738
Total commercial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	1,231,504	1,231,569
Total commercial loans | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	904,936	893,396
Total commercial loans | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	326,568	338,173
Total residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	1,184,053	1,144,698
Total residential real estate | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	723,425	670,189
Total residential real estate | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	460,628	474,509
Total residential real estate | Residential mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	1,184,053	1,144,698
Total residential real estate | Residential mortgages | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	723,425	670,189
Total residential real estate | Residential mortgages | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	460,628	474,509
Total consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	111,402	113,960
Total consumer | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	67,508	67,312
Total consumer | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	43,894	46,648
Total consumer | Home equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	101,379	103,189
Total consumer | Home equity | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	58,696	57,898
Total consumer | Home equity | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	42,683	45,291
Total consumer | Other consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	10,023	10,771
Total consumer | Other consumer | Business Activities Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	8,812	9,414
Total consumer | Other consumer | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, gross	$ 1,211	$ 1,357

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No definition available.

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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.

+ 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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