Consolidated Statements Of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended
	Mar. 29, 2015	Mar. 30, 2014
Statement of Comprehensive Income [Abstract]
Net loss	$ (2,559)	$ (129)
Other comprehensive (loss) income, net of tax:
Pension liability adjustments, net of tax benefit of $3 and $110	4,431	328
Foreign currency translation adjustment	(14,899)	355
Total other comprehensive (loss) income, net of tax	(10,468)	683
Comprehensive (loss) income	$ (13,027)	$ 554