Condensed Consolidated Statement of Stockholders' Deficit (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	Total	Common Stock	Additional Paid-in Capital	Retained deficit	Accumulated other comprehensive loss
Beginning Balance at Dec. 31, 2012	$ (317,813)	$ 262	$ 506,153	$ (568,239)	$ (255,989)
Beginning Balance, Shares at Dec. 31, 2012	26,288,998	26,289,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(99,553)	0	0	(99,553)	0
Issuance of common stock, Shares		178,000
Issuance of common stock	0	2	(2)	0	0
Exercise of stock options, Shares		11,000
Exercise of stock options	53	0	53	0	0
Stock based compensation expense, Shares		0
Stock based compensation expense	4,524	0	4,524	0	0
Interest rate swaps (net of $(0.4) million and $(0.4) million tax expense, respectively, for three months and nine months ended September 30, 2013)	(542)	0	0	0	(542)
Employee benefit adjustment to comprehensive income, Shares		0
Employee benefit other comprehensive loss before reclassifications	(2,429)	0	0	0	(2,429)
Employee benefit amounts reclassified from accumulated other comprehensive loss	9,034	0	0	0	9,034
Ending Balance at Sep. 30, 2013	$ (406,726)	$ 264	$ 510,728	$ (667,792)	$ (249,926)
Ending Balance, Shares at Sep. 30, 2013	26,478,175	26,478,000