Securities (Details 2) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Less Than 12 Months
Fair Value	$ 179,567	$ 57,332
Unrealized Losses	(6,072)	(163)
More Than 12 Months
Fair Value	232,107	299,536
Unrealized Losses	(2,831)	(8,026)
Total
Fair Value	411,674	356,868
Unrealized Losses	(8,903)	(8,189)
Mortgage Backed Securities - Residential
Less Than 12 Months
Fair Value	18,799	0
Unrealized Losses	(478)	0
More Than 12 Months
Fair Value	45,963	23,849
Unrealized Losses	(436)	(330)
Total
Fair Value	64,762	23,849
Unrealized Losses	(914)	(330)
Collateralized Mortgage Obligations
Less Than 12 Months
Fair Value	156,426	50,832
Unrealized Losses	(5,449)	(128)
More Than 12 Months
Fair Value	151,452	264,940
Unrealized Losses	(1,665)	(7,495)
Total
Fair Value	307,878	315,772
Unrealized Losses	(7,114)	(7,623)
State and Municipal Obligations
Less Than 12 Months
Fair Value	4,342	6,500
Unrealized Losses	(145)	(35)
More Than 12 Months
Fair Value	34,636	10,547
Unrealized Losses	(728)	(184)
Total
Fair Value	38,978	17,047
Unrealized Losses	(873)	(219)
Collateralized Debt Obligations
Less Than 12 Months
Fair Value	0	0
Unrealized Losses	0	0
More Than 12 Months
Fair Value	56	200
Unrealized Losses	(2)	(17)
Total
Fair Value	56	200
Unrealized Losses	$ (2)	$ (17)