Condensed Consolidated Statements of Comprehensive Loss (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 29, 2014	Mar. 30, 2013
Statement of Comprehensive Income [Abstract]
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 (gain)	338	253
Income (loss) before income taxes	(44,908)	(31,175)
Income tax expense	1,441	169
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 income (loss)	$ (55,400)	$ (36,734)