Supplemental Guarantor Condensed Financial Information - Consolidated Statements of Comprehensive (Loss) Income (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 28, 2012	Sep. 30, 2011	Sep. 28, 2012	Sep. 30, 2011
Condensed Financial Statements, Captions [Line Items]
Net loss	$ (1,175)	$ (27,045)	$ (24,887)	$ (37,502)
Foreign currency translation adjustment	26	(1,866)	(176)	2,893
Net change in pension and other benefit liabilities, net of tax	86	11	256	32
Total comprehensive (loss) income	(1,063)	(28,900)	(24,807)	(34,577)
Parent
Condensed Financial Statements, Captions [Line Items]
Net loss	(1,175)	(27,045)	(24,887)	(37,502)
Foreign currency translation adjustment	26	(1,866)	(176)	2,893
Net change in pension and other benefit liabilities, net of tax	86	11	256	32
Total comprehensive (loss) income	(1,063)	(28,900)	(24,807)	(34,577)
Subsidiary Issuer
Condensed Financial Statements, Captions [Line Items]
Net loss	(1,025)	(26,897)	(24,440)	(37,057)
Foreign currency translation adjustment	26	(1,866)	(176)	2,893
Net change in pension and other benefit liabilities, net of tax	86	11	256	32
Total comprehensive (loss) income	(913)	(28,752)	(24,360)	(34,132)
Non-Guarantor
Condensed Financial Statements, Captions [Line Items]
Net loss	(2,055)	(1,397)	(6,145)	1,687
Foreign currency translation adjustment	26	(1,866)	112	2,631
Net change in pension and other benefit liabilities, net of tax	24	0	70	0
Total comprehensive (loss) income	(2,005)	(3,263)	(5,963)	4,318
Eliminations
Condensed Financial Statements, Captions [Line Items]
Net loss	3,080	28,294	30,585	35,370
Foreign currency translation adjustment	(52)	3,732	64	(5,524)
Net change in pension and other benefit liabilities, net of tax	(110)	(11)	(326)	(32)
Total comprehensive (loss) income	$ 2,918	$ 32,015	$ 30,323	$ 29,814