Changes in Accumulated Other Comprehensive Income by Component Changes in AOCI by Component (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 27, 2016	Mar. 29, 2015
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance, beginning	$ 3,291	$ (10,630)
Other comprehensive income before reclassifications	(8,355)	3,313
Amounts reclassified from accumulated other comprehensive income	1,329	1,462
Net current-period other comprehensive income	(7,026)	4,775
Balance, ending	(3,735)	(5,855)
Other Comprehensive income before reclassification tax effect	711	701
Foreign currency translation adjustment, tax	2,520	(4,147)
Benefit for taxes	(19,382)	(44,394)
Gains and Losses on Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance, beginning	(19,300)	(16,566)
Other comprehensive income before reclassifications	(3,960)	(3,901)
Amounts reclassified from accumulated other comprehensive income	1,329	1,462
Net current-period other comprehensive income	(2,631)	(2,439)
Balance, ending	(21,931)	(19,005)
Foreign Currency Items [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance, beginning	22,591	5,936
Other comprehensive income before reclassifications	(4,395)	7,214
Amounts reclassified from accumulated other comprehensive income	0	0
Net current-period other comprehensive income	(4,395)	7,214
Balance, ending	18,196	13,150
Reclassification out of Accumulated Other Comprehensive Income [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Benefit for taxes	$ (247)	$ (224)