Consolidated Statements of Shareholders' Equity Statement - 6 months ended Jun. 30, 2016 - USD ($) $ in Thousands	Total	Preferred Stock Including Additional Paid in Capital	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit	Total Shareholders' Equity
Balance at Dec. 31, 2015	$ 492,025	$ 109,658	$ 490	$ 725,358	$ (12,768)	$ (330,713)	$ 492,025
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock issuance		0	0	77			77
Restricted stock granted, net of amortization			2	1,441			1,443
Adjustments for tax withholding on share-based compensation			(1)	(484)			(485)
Stock issuance costs amortization				(19)			(19)
Common stock repurchased			0	(310)			(310)
Net loss	(40,662)					(40,662)	(40,662)
Dividends on preferred stock						(4,588)	(4,588)
Dividends on common stock						(20,631)	(20,631)
Other comprehensive income	64,676				64,676		64,676
Balance at Jun. 30, 2016	$ 491,526	$ 109,658	$ 491	$ 726,063	$ 51,908	$ (396,594)	$ 491,526