Condensed Consolidated Statements of Changes in Stockholders' Equity (USD $) In Thousands, except Share data	Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings (Accumulated Deficit) [Member]	Accumulated Other Comprehensive Loss [Member]	Treasury Stock, at Cost [Member]
Beginning Balance at Dec. 31, 2014	$ 579,535	$ 902	$ 655,471	$ 33,516	$ (483)	$ (109,871)
Beginning Balance, shares at Dec. 31, 2014	90,191,100	90,191,100
Equity-based compensation	1,853		1,853
Unrealized loss on derivatives, net of tax	(873)				(873)
Vesting of restricted shares
Vesting of restricted shares, shares		13,547
Shares withheld for tax withholdings	(5)		(5)
Shares withheld for tax withholdings, shares		(296)
Cash dividends declared to stockholders, net of forfeitures	(36,299)		(18,205)	(18,094)
Net loss	(43,598)			(43,598)
Ending Balance at Mar. 31, 2015	$ 500,613	$ 902	$ 639,114	$ (28,176)	$ (1,356)	$ (109,871)
Ending Balance, shares at Mar. 31, 2015	90,204,351	90,204,351