Subsidiary Guarantors - Condensed Consolidating Statement of Comprehensive Loss (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 29, 2014	Mar. 30, 2013
Condensed Financial Statements, Captions [Line Items]
Net sales	$ 196,589	$ 208,984
Cost of sales	162,174	164,230
Gross profit	34,415	44,754
Selling, general and administrative expenses	58,996	56,835
Manufacturing restructuring costs	(331)	0
Income from operations	(24,250)	(12,081)
Interest expense, net	20,320	18,841
Foreign currency loss	338	253
Income (loss) before income taxes	(44,908)	(31,175)
Income tax expense (benefit)	1,441	169
(Loss) income before equity income (loss) from subsidiaries	(46,349)	(31,344)
Equity income (loss) from subsidiaries	0	0
Net income (loss)	(46,349)	(31,344)
Other comprehensive income (loss):
Pension and other postretirement benefit adjustments, net of tax	3	153
Foreign currency translation adjustments, net of tax	(9,054)	(5,543)
Total comprehensive (loss) income	(55,400)	(36,734)
Company
Condensed Financial Statements, Captions [Line Items]
Net sales	156,939	161,763
Cost of sales	134,318	128,301
Gross profit	22,621	33,462
Selling, general and administrative expenses	48,130	44,404
Manufacturing restructuring costs	(331)
Income from operations	(25,178)	(10,942)
Interest expense, net	19,972	18,453
Foreign currency loss	0	0
Income (loss) before income taxes	(45,150)	(29,395)
Income tax expense (benefit)	1,634	946
(Loss) income before equity income (loss) from subsidiaries	(46,784)	(30,341)
Equity income (loss) from subsidiaries	435	(1,003)
Net income (loss)	(46,349)	(31,344)
Other comprehensive income (loss):
Pension and other postretirement benefit adjustments, net of tax	3	153
Foreign currency translation adjustments, net of tax	(9,054)	(5,543)
Total comprehensive (loss) income	(55,400)	(36,734)
Co-Issuer
Condensed Financial Statements, Captions [Line Items]
Net sales	0	0
Cost of sales	0	0
Gross profit	0	0
Selling, general and administrative expenses	0	0
Manufacturing restructuring costs	0
Income from operations	0	0
Interest expense, net	0	0
Foreign currency loss	0	0
Income (loss) before income taxes	0	0
Income tax expense (benefit)	0	0
(Loss) income before equity income (loss) from subsidiaries	0	0
Equity income (loss) from subsidiaries	0	0
Net income (loss)	0	0
Other comprehensive income (loss):
Pension and other postretirement benefit adjustments, net of tax	0	0
Foreign currency translation adjustments, net of tax	0	0
Total comprehensive (loss) income	0	0
Subsidiary Guarantors
Condensed Financial Statements, Captions [Line Items]
Net sales	30,662	35,830
Cost of sales	28,950	33,327
Gross profit	1,712	2,503
Selling, general and administrative expenses	942	1,435
Manufacturing restructuring costs	0
Income from operations	770	1,068
Interest expense, net	1	0
Foreign currency loss	0	0
Income (loss) before income taxes	769	1,068
Income tax expense (benefit)	(27)	(34)
(Loss) income before equity income (loss) from subsidiaries	796	1,102
Equity income (loss) from subsidiaries	(361)	(2,105)
Net income (loss)	435	(1,003)
Other comprehensive income (loss):
Pension and other postretirement benefit adjustments, net of tax	12	110
Foreign currency translation adjustments, net of tax	(9,054)	(5,543)
Total comprehensive (loss) income	(8,607)	(6,436)
Non-Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Net sales	44,694	46,200
Cost of sales	34,612	37,411
Gross profit	10,082	8,789
Selling, general and administrative expenses	9,924	10,996
Manufacturing restructuring costs	0
Income from operations	158	(2,207)
Interest expense, net	347	388
Foreign currency loss	338	253
Income (loss) before income taxes	(527)	(2,848)
Income tax expense (benefit)	(166)	(743)
(Loss) income before equity income (loss) from subsidiaries	(361)	(2,105)
Equity income (loss) from subsidiaries	0	0
Net income (loss)	(361)	(2,105)
Other comprehensive income (loss):
Pension and other postretirement benefit adjustments, net of tax	14	102
Foreign currency translation adjustments, net of tax	(9,054)	(5,543)
Total comprehensive (loss) income	(9,401)	(7,546)
Reclassification/Eliminations
Condensed Financial Statements, Captions [Line Items]
Net sales	(35,706)	(34,809)
Cost of sales	(35,706)	(34,809)
Gross profit	0	0
Selling, general and administrative expenses	0	0
Manufacturing restructuring costs	0
Income from operations	0	0
Interest expense, net	0	0
Foreign currency loss	0	0
Income (loss) before income taxes	0	0
Income tax expense (benefit)	0	0
(Loss) income before equity income (loss) from subsidiaries	0	0
Equity income (loss) from subsidiaries	(74)	3,108
Net income (loss)	(74)	3,108
Other comprehensive income (loss):
Pension and other postretirement benefit adjustments, net of tax	(26)	(212)
Foreign currency translation adjustments, net of tax	18,108	11,086
Total comprehensive (loss) income	$ 18,008	$ 13,982