Supplemental Guarantor Condensed Financial Information - Consolidated Statements of Comprehensive (Loss) Income (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 29, 2012	Jul. 01, 2011	Jun. 29, 2012	Jul. 01, 2011
Condensed Financial Statements, Captions [Line Items]
Net loss	$ (15,592)	$ (2,126)	$ (23,712)	$ (10,457)
Foreign currency translation adjustment	(1,165)	463	(202)	4,759
Net change in pension and other benefit liabilities, net of tax	85	21	170	21
Total comprehensive (loss) income	(16,672)	(1,642)	(23,744)	(5,677)
Parent
Condensed Financial Statements, Captions [Line Items]
Net loss	(15,592)	(2,126)	(23,712)	(10,457)
Foreign currency translation adjustment	(1,165)	463	(202)	4,759
Net change in pension and other benefit liabilities, net of tax	85	21	170	21
Total comprehensive (loss) income	(16,672)	(1,642)	(23,744)	(5,677)
Subsidiary Issuer
Condensed Financial Statements, Captions [Line Items]
Net loss	(15,444)	(1,977)	(23,415)	(10,160)
Foreign currency translation adjustment	(1,165)	463	(202)	4,759
Net change in pension and other benefit liabilities, net of tax	85	21	170	21
Total comprehensive (loss) income	(16,524)	(1,493)	(23,447)	(5,380)
Non-Guarantor
Condensed Financial Statements, Captions [Line Items]
Net loss	(1,101)	(2,314)	(4,090)	3,084
Foreign currency translation adjustment	(699)	132	86	4,497
Net change in pension and other benefit liabilities, net of tax	23	0	46	0
Total comprehensive (loss) income	(1,777)	(2,182)	(3,958)	7,581
Eliminations
Condensed Financial Statements, Captions [Line Items]
Net loss	16,545	4,291	27,505	7,076
Foreign currency translation adjustment	1,864	(595)	116	(9,256)
Net change in pension and other benefit liabilities, net of tax	(108)	(21)	(216)	(21)
Total comprehensive (loss) income	$ 18,301	$ 3,675	$ 27,405	$ (2,201)