Consolidated Statements of Shareholders' Equity Statement - 3 months ended Mar. 31, 2016 - USD ($) $ in Thousands	Total	Preferred Stock Including Additional Paid in Capital [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Accumulated Deficit [Member]	Total Shareholders' Equity [Member]
Balance at Dec. 31, 2015	$ 492,025	$ 109,658	$ 490	$ 725,358	$ (12,768)	$ (330,713)	$ 492,025
Stock issuance		0	0	56			56
Restricted stock granted, net of amortization			2	827			829
Adjustments for tax withholding on share-based compensation			(1)	(484)			(485)
Stock issuance costs amortization				(9)			(9)
Common stock repurchased			0	(310)			(310)
Net loss	(37,431)					(37,431)	(37,431)
Dividends on preferred stock						(2,294)	(2,294)
Dividends on common stock						(10,310)	(10,310)
Other comprehensive income	41,728				41,728		41,728
Balance at Mar. 31, 2016	$ 483,799	$ 109,658	$ 491	$ 725,438	$ 28,960	$ (380,748)	$ 483,799