SECURITIES (Available-for-sale Securities Debt Maturities) (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]
Maturing in one year or less, amortized cost	$ 17,491
Maturing after one year thorugh five years, amortized cost	250,837
Maturing after five years through ten years, amortized cost	37,545
Maturing after ten years through twenty years, amortized cost	30,856
Maturing after twenty years, amortized cost	80,002
Amoritzed cost	416,731
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Maturing one year or less, fair value	17,462
Maturing after one year through five years, fair value	251,489
Maturing after five years through ten years, fair value	37,541
Maturing after ten years through twenty years, fair value	31,376
Maturing after twenty years, fair value	80,386
Fair Value	$ 418,254	$ 411,021