Accumulated Other Comprehensive Income (Loss) (Details) $ in Thousands	3 Months Ended
	Apr. 01, 2016 USD ($)
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	$ (18,830)
Other comprehensive income (loss)	321
Amounts reclassified from other comprehensive income (loss)	193	[1]
Ending Balance	(18,316)
Foreign currency translation adjustments
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	(9,698)
Other comprehensive income (loss)	65
Ending Balance	(9,633)
Pension liability
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	(9,132)
Other comprehensive income (loss)	256
Amounts reclassified from other comprehensive income (loss)	193	[1]
Ending Balance	$ (8,683)

[1] The amounts reclassified from other comprehensive income (loss) were included in selling, general and administrative expenses in the consolidated statements of operations.