COMMITMENTS AND CONTINGENCIES (Summary of Contractual and Notional Amounts of Financial Instruments) (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Interest rate swaps
Financial Instruments [Line Items]
Notional amount of derivative financial instruments	$ 43,000	$ 43,000
Forward-Starting Interest Rate Swap
Financial Instruments [Line Items]
Notional amount of derivative financial instruments	50,000	0
Customer loan swaps
Financial Instruments [Line Items]
Notional amount of derivative financial instruments	171,302	58,234
Other Commitments
Financial Instruments [Line Items]
Notional amount of derivative financial instruments	651	1,305
Letters of Credit
Financial Instruments [Line Items]
Notional amount of derivative financial instruments	2,436	3,103
Home Equity
Financial Instruments [Line Items]
Notional amount of derivative financial instruments	336,459	303,815
Commercial and commercial real estate
Financial Instruments [Line Items]
Notional amount of derivative financial instruments	45,729	47,066
Residential
Financial Instruments [Line Items]
Notional amount of derivative financial instruments	$ 17,608	$ 10,975