Income Taxes Components of Income from Continuing Operations Before Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 26, 2015	Dec. 27, 2014	Dec. 28, 2013
Income from continuing operations before income taxes:
U.S.	$ 76,157	$ 71,002	$ 39,900
Non-U.S.	119,271	106,593	98,427
Income from continuing operations, before income taxes	195,428	177,595	138,327
Current:
Federal	23,687	13,733	10,832
Foreign	8,572	20,364	18,370
State	6,819	4,746	4,240
Total current	39,078	38,843	33,442
Deferred:
Federal	1,790	12,982	5,468
Foreign	3,064	(4,672)	(6,431)
State	(541)	518	432
Total deferred	4,313	8,828	(531)
Provision for income taxes	$ 43,391	$ 47,671	$ 32,911