Consolidated Statements of Comprehensive Income Statement - USD ($)	3 Months Ended		9 Months Ended
	Sep. 29, 2015	Sep. 30, 2014	Sep. 29, 2015	Sep. 30, 2014
Statement of Comprehensive Income [Abstract]
Net Income	$ 32,393,000	$ 39,214,000	$ 106,182,000	$ 130,801,000
Unrealized gains (losses) on cash flow hedging instruments	(4,908,000)		(4,908,000)
Unrealized Gain (Loss) on Cash Flow Hedging Instruments		0		0
Tax (expense) benefit	1,941,000	0	1,941,000	0
Foreign currency translation adjustment	(963,000)	(570,000)	(1,666,000)	(514,000)
Other comprehensive income (loss)	(3,930,000)	(570,000)	(4,633,000)	(514,000)
Comprehensive income	$ 28,463,000	$ 38,644,000	$ 101,549,000	$ 130,287,000