Condensed Consolidated Statements of Changes in Shareholders' Deficit - USD ($) $ in Thousands	Preferred Stock	Common Stock	Treasury Stock	Additional Paid-in Capital	Retained (Deficit) Earnings	Accumulated Other Comprehensive (Loss) Income	Total
Balance at Dec. 31, 2015		$ 830	$ (28,414)	$ 988,686	$ (1,634,591)	$ (4,554)	$ (678,043)
Balance (in shares) at Dec. 31, 2015	8,624	80,889,275
Increase (Decrease) in Shareholders' Deficit
Share-based compensation arrangements, net of tax benefits of $689 for the period ended March 31, 2016		$ 4		3,922			3,926
Share-based compensation arrangements (in shares)		394,906
Foreign currency translation adjustment						1,312	1,312
Net income					23,708		23,708
Balance at Mar. 31, 2016		$ 834	(28,414)	992,608	(1,610,883)	(3,242)	(649,097)
Balance (in shares) at Mar. 31, 2016	8,624	81,284,181
Balance at Dec. 31, 2016		$ 932	(28,414)	1,014,119	(1,525,281)	(4,676)	(543,320)
Balance (in shares) at Dec. 31, 2016		91,122,308
Increase (Decrease) in Shareholders' Deficit
Repurchase of Preferred Stock		$ (4)		(5,790)			(5,794)
Repurchase of Preferred Stock (in shares)		(416,886)
Share-based compensation arrangements, net of tax benefits of $689 for the period ended March 31, 2016		$ 3		2,838			2,841
Share-based compensation arrangements (in shares)		253,344
Foreign currency translation adjustment						437	437
Net income					5,104		5,104
Balance at Mar. 31, 2017		$ 931	$ (28,414)	$ 1,011,167	$ (1,520,177)	$ (4,239)	$ (540,732)
Balance (in shares) at Mar. 31, 2017		90,958,766