CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Statement of Comprehensive Income [Abstract]
Net income	$ 10,741	$ 3,210	$ 20,991	$ 5,445
Securities available for sale:
Unrealized net gains (losses) on available for sale securities	(6,518)	4,067	(2,196)	7,380
Tax effect	2,502	(1,566)	954	(2,845)
Reclassification of gains on sales of securities	(84)	(218)	(85)	(218)
Tax effect	32	84	33	84
Net of tax amount	(4,068)	2,367	(1,294)	4,401
Cash flow hedges:
Unrealized net gains (losses) on cash flow hedges	3,493	(1,292)	(670)	(2,241)
Tax effect	(1,347)	498	258	864
Reclassification of amounts into interest expense from termination of interest rate swaps	8	0	8	0
Tax effect	(3)	0	(3)	0
Net of tax amount	2,151	(794)	(407)	(1,377)
Total other comprehensive income (loss)	(1,917)	1,573	(1,701)	3,024
Comprehensive income	$ 8,824	$ 4,783	$ 19,290	$ 8,469