SECURITIES (Details 4) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013 holding	Dec. 31, 2012 holding
Summary of gross unrealized losses and fair value of investments
No of holdings	221	38
Fair value, less than 12 months	$ 433,230	$ 50,344
Unrealized losses, less than 12 months	(13,520)	(225)
Fair value, 12 months or longer	10,928	2,069
Unrealized losses, 12 months or longer	(2,490)	(2,415)
Fair value, Total	444,158	52,413
Unrealized losses, Total	(16,010)	(2,640)
US Government Agencies Debt Securities [Member]
Summary of gross unrealized losses and fair value of investments
No of holdings	39
Fair value, less than 12 months	39,950
Unrealized losses, less than 12 months	(885)
Fair value, 12 months or longer	0
Unrealized losses, 12 months or longer	0
Fair value, Total	39,950
Unrealized losses, Total	(885)
Agency mortgage-backed securities [Member]
Summary of gross unrealized losses and fair value of investments
No of holdings	124	17
Fair value, less than 12 months	202,004	23,814
Unrealized losses, less than 12 months	(5,217)	(114)
Fair value, 12 months or longer	5,108	0
Unrealized losses, 12 months or longer	(372)	0
Fair value, Total	207,112	23,814
Unrealized losses, Total	(5,589)	(114)
Agency collateralized mortgage obligations [Member]
Summary of gross unrealized losses and fair value of investments
No of holdings	19	2
Fair value, less than 12 months	183,721	17,677
Unrealized losses, less than 12 months	(7,278)	(39)
Fair value, 12 months or longer	0	0
Unrealized losses, 12 months or longer	0	0
Fair value, Total	183,721	17,677
Unrealized losses, Total	(7,278)	(39)
US States and Political Subdivisions Debt Securities [Member]
Summary of gross unrealized losses and fair value of investments
No of holdings	13
Fair value, less than 12 months	3,838
Unrealized losses, less than 12 months	(28)
Fair value, 12 months or longer	0
Unrealized losses, 12 months or longer	0
Fair value, Total	3,838
Unrealized losses, Total	(28)
Single issuer trust preferred securities issued by banks [Member]
Summary of gross unrealized losses and fair value of investments
No of holdings	2	2
Fair value, less than 12 months	1,341	2,240
Unrealized losses, less than 12 months	(22)	(15)
Fair value, 12 months or longer	0	0
Unrealized losses, 12 months or longer	0	0
Fair value, Total	1,341	2,240
Unrealized losses, Total	(22)	(15)
Pooled trust preferred securities issued by banks and insurers [Member]
Summary of gross unrealized losses and fair value of investments
No of holdings	2	2
Fair value, less than 12 months	0	0
Unrealized losses, less than 12 months	0	0
Fair value, 12 months or longer	2,300	2,069
Unrealized losses, 12 months or longer	(1,913)	(2,415)
Fair value, Total	2,300	2,069
Unrealized losses, Total	(1,913)	(2,415)
Marketable securities [Member]
Summary of gross unrealized losses and fair value of investments
No of holdings	22	15
Fair value, less than 12 months	2,376	6,613
Unrealized losses, less than 12 months	(90)	(57)
Fair value, 12 months or longer	3,520
Unrealized losses, 12 months or longer	205
Fair value, Total	5,896	6,613
Unrealized losses, Total	$ (295)	$ (57)