Condensed Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 24, 2012	Jun. 30, 2013	Jun. 24, 2012
Net income	$ 6,324	$ 6,414	$ 11,258	$ 13,147
Foreign currency translation gain (loss)	(7,633)	(3,441)	(1,693)	(1,104)
Amortization of amounts resulting from changes in actuarial assumptions	134	65	269	131
Tax provision	(50)	(26)	(100)	(52)
Pension changes, net of tax	84	39	169	79
Other comprehensive income (loss), net of tax	(7,549)	(3,402)	(1,524)	(1,025)
Comprehensive income (loss)	$ (1,225)	$ 3,012	$ 9,734	$ 12,122