CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 29, 2014	Mar. 30, 2013
Statement of Partners' Capital [Abstract]
Net income	$ 24,833	$ 49,759
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment	(4,974)	(19,083)
Net unrealized gain on foreign currency forward contracts designated as cash flow hedges	0	422
Other comprehensive loss, net of tax	(4,974)	(18,661)
Comprehensive income	$ 19,859	$ 31,098