Changes in Accumulated Other Comprehensive Income by Component Changes in AOCI by Component (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 24, 2017	Sep. 25, 2016	Sep. 24, 2017	Sep. 25, 2016
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Net current-period other comprehensive income	$ (9,149)	$ 3,391	$ (7,104)	$ (4,091)
Other comprehensive income before reclassification tax effect	0	0	0	711
Provision (benefit) for taxes	(73,747)	(62,918)	(63,769)	(65,339)
Foreign currency translation adjustment, tax		(803)	0	3,131
Gains and Losses on Cash Flow Hedges [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance, beginning	(11,963)	(19,938)	(15,950)	(19,300)
Other comprehensive income before reclassifications	0	0	0	(3,960)
Amounts reclassified from accumulated other comprehensive income	1,994	1,994	5,981	5,316
Net current-period other comprehensive income	1,994	1,994	5,981	1,356
Balance, ending	(9,969)	(17,944)	(9,969)	(17,944)
Foreign Currency Items [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance, beginning	16,949	15,747	18,891	22,591
Other comprehensive income before reclassifications	(11,143)	1,397	(13,085)	(5,447)
Amounts reclassified from accumulated other comprehensive income	0	0	0	0
Net current-period other comprehensive income	(11,143)	1,397	(13,085)	(5,447)
Balance, ending	5,806	17,144	5,806	17,144
AOCI Attributable to Parent [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance, beginning	4,986	(4,191)	2,941	3,291
Other comprehensive income before reclassifications	(11,143)	1,397	(13,085)	(9,407)
Amounts reclassified from accumulated other comprehensive income	1,994	1,994	5,981	5,316
Net current-period other comprehensive income	(9,149)	3,391	(7,104)	(4,091)
Balance, ending	$ (4,163)	$ (800)	$ (4,163)	$ (800)