Accumulated Other Comprehensive Income (Details) (USD $)	3 Months Ended
	Mar. 29, 2013	Dec. 31, 2012
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance, beginning of period	$ 10,805,000
Other comprehensive income (loss) before reclassifications	(185,000)
Amounts reclassified from accumulated other comprehensive income (loss)	84,000
Net other comprehensive income (loss)	(101,000)
Balance, end of period	10,704,000
Other comprehensive income (loss), pension and other postretirement benefit plans, tax	900,000	900,000
Accumulated Translation Adjustment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance, beginning of period	20,096,000
Other comprehensive income (loss) before reclassifications	(185,000)
Amounts reclassified from accumulated other comprehensive income (loss)	0
Net other comprehensive income (loss)	(185,000)
Balance, end of period	19,911,000
Accumulated Defined Benefit Plans Adjustment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance, beginning of period	(9,291,000)
Other comprehensive income (loss) before reclassifications	0
Amounts reclassified from accumulated other comprehensive income (loss)	84,000
Net other comprehensive income (loss)	84,000
Balance, end of period	$ (9,207,000)