Consolidated Statements of Changes in Deficit (USD $) In Thousands, except Share data, unless otherwise specified	Total USD ($)	Member Units	Accumulated Members' Deficit USD ($)	Accumulated Other Comprehensive Loss USD ($)	Non-Controlling Interest USD ($)	Comprehensive Income (Loss) USD ($)
Balance at Dec. 31, 2009	$ (110,818)		$ (104,912)	$ (5,810)	$ (96)
Balance (in shares) at Dec. 31, 2009		132,174
Increase (Decrease) in Stockholders' Equity
Distributions to members	(17,937)		(17,937)
Disposal of non-controlling interest	180				180
Net (loss) income	(11,149)		(11,065)		(84)	(11,149)
Other comprehensive (loss)/income:
Pension and postretirement health liabilities	(3,089)			(3,089)		(3,089)
Foreign currency translation	1,415			1,415		1,415
Comprehensive loss	(12,823)					(12,823)
Balance at Dec. 31, 2010	(141,398)		(133,914)	(7,484)
Balance (in shares) at Dec. 31, 2010		132,174
Increase (Decrease) in Stockholders' Equity
Distributions to members	(778)		(778)
Net (loss) income	4,988		4,988			4,988
Other comprehensive (loss)/income:
Pension and postretirement health liabilities	(5,202)			(5,202)		(5,202)
Foreign currency translation	(444)			(444)		(444)
Comprehensive loss	(658)					(658)
Balance at Dec. 31, 2011	(142,834)		(129,704)	(13,130)
Balance (in shares) at Dec. 31, 2011	132,174	132,174
Increase (Decrease) in Stockholders' Equity
Common unit compensation expense	17		17
Distributions to members	(704)		(704)
Net (loss) income	(7,055)		(7,055)			(7,055)
Other comprehensive (loss)/income:
Pension and postretirement health liabilities	(1,229)			(1,229)		(1,229)
Foreign currency translation	518			518		518
Comprehensive loss	(7,766)					(7,766)
Balance at Dec. 31, 2012	$ (151,287)		$ (137,446)	$ (13,841)
Balance (in shares) at Dec. 31, 2012	132,174	132,174