Consolidated Statements of Shareholders' Equity Statement - 9 months ended Sep. 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
Balance at Dec. 31, 2015	$ 492,025	$ 109,658	$ 490	$ 725,358	$ (12,768)	$ (330,713)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock issuance	102	0	0	102
Restricted stock granted, net of amortization	2,066		2	2,064
Adjustments for tax withholding on share-based compensation	(485)		(1)	(484)
Stock issuance costs amortization	(29)			(29)
Common stock repurchased	(310)		0	(310)
Net loss	(25,962)					(25,962)
Dividends on preferred stock	(6,882)					(6,882)
Dividends on common stock	(30,952)					(30,952)
Other comprehensive income	65,346				65,346
Balance at Sep. 30, 2016	$ 494,919	$ 109,658	$ 491	$ 726,701	$ 52,578	$ (394,509)