Condensed Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 29, 2013	Sep. 23, 2012	Sep. 29, 2013	Sep. 23, 2012
Net income	$ 5,171	$ 15,056	$ 16,429	$ 28,204
Other comprehensive income (loss), net of tax:
Foreign currency translation gain	2,068	6,098	375	4,994
Defined benefit pension plan:
Adjustment to unrealized loss for unvested termination	522	0	522	0
Amortization of amounts resulting from changes in actuarial assumptions	135	67	404	198
Tax provision	(233)	(24)	(333)	(76)
Pension changes, net of tax	424	43	593	122
Other comprehensive income, net of tax	2,492	6,141	968	5,116
Comprehensive income	$ 7,663	$ 21,197	$ 17,397	$ 33,320