Changes in Accumulated Other Comprehensive Income by Component Changes in AOCI by Component (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 25, 2018	Mar. 26, 2017
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Net current-period other comprehensive income	$ 6,622	$ 1,334
Reclassification of stranded tax effect	(400)
Provision (benefit) for taxes	19,199	27,719
OCI before reclassifications, tax		1,145
Gains and Losses on Cash Flow Hedges [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance, beginning	(7,975)	(15,950)
Other comprehensive income before reclassifications	0	0
Amounts reclassified from accumulated other comprehensive income	2,018	1,994
Net current-period other comprehensive income	2,018	1,994
Reclassification of stranded tax effect	(391)
Balance, ending	(6,348)	(13,956)
Foreign Currency Items [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance, beginning	4,042	18,891
Other comprehensive income before reclassifications	4,604	(660)
Amounts reclassified from accumulated other comprehensive income	0	0
Net current-period other comprehensive income	4,604	(660)
Reclassification of stranded tax effect	0
Balance, ending	8,646	18,231
AOCI Attributable to Parent [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance, beginning	(3,933)	2,941
Other comprehensive income before reclassifications	4,604	(660)
Amounts reclassified from accumulated other comprehensive income	2,018	1,994
Net current-period other comprehensive income	6,622	1,334
Reclassification of stranded tax effect	(391)
Balance, ending	$ 2,298	$ 4,275