COMMITMENTS AND CONTINGENCIES (Summary of Contractual and Notional Amounts of Financial Instruments) (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Customer loan swaps
Financial Instruments [Line Items]
Notional amount of derivative	$ 464,514	$ 285,888
Forward-Starting Interest Rate Swap
Financial Instruments [Line Items]
Notional amount of derivative	50,000	50,000
Interest rate swaps
Financial Instruments [Line Items]
Notional amount of derivative	43,000	43,000
Interest rate lock commitments
Financial Instruments [Line Items]
Notional amount of derivative	49,113	20,735
Other Commitments
Financial Instruments [Line Items]
Notional amount of derivative	442	433
Letters of Credit
Financial Instruments [Line Items]
Notional amount of derivative	3,009	4,468
Home Equity
Financial Instruments [Line Items]
Notional amount of derivative	464,991	464,701
Commercial and commercial real estate
Financial Instruments [Line Items]
Notional amount of derivative	52,268	94,791
Residential
Financial Instruments [Line Items]
Notional amount of derivative	$ 28,809	$ 16,256