SECURITIES (Schedule of Amortized Cost and Estimated Fair Values of Debt Securities by Contractual Maturity) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Available-for-sale, Amortized Cost
Due in one year or less	$ 961
Due after one year through five years	61,077
Due after five years through ten years	116,946
Due after ten years	594,934
Amortized cost, total	773,918
Available-for-sale, Fair Value
Due in one year or less	983
Due after one year through five years	61,665
Due after five years through ten years	118,558
Due after ten years	591,261
Fair value, total	772,467
Held-to-maturity Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis [Abstract]
Due in one year or less	0
Due after one year through five years	0
Due after five years through ten years	1,179
Due after ten years	8,619
Held-to-maturity Securities, Fair Value	9,798	0
Held-to-maturity Securities, Debt Maturities, Single Maturity Date, Fair Value [Abstract]
Due in one year or less	0
Due after one year through five years	0
Due after five years through ten years	1,187
Due after ten years	8,705
Held-to-maturity Securities, Fair Value	$ 9,892