Consolidated Statements of Comprehensive (Loss) Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 04, 2015	Jun. 28, 2014	Jul. 04, 2015	Jun. 28, 2014
Statement of Comprehensive Income [Abstract]
Net (loss) income	$ (76,258)	$ 27,557	$ (101,555)	$ 69,163
Other comprehensive (loss) income, net of tax:
Unrealized (loss) gain on anticipated sales hedging transactions	(4,642)	776	(2,952)	1,389
Unrealized gain (loss) on forward interest rate swaps hedging transactions	3,164	0	(3,887)	0
Unrealized holding (loss) gain on investments	0	348	(16)	496
Foreign currency translation adjustment	(8,532)	(29)	(10,244)	(196)
Comprehensive (loss) income	$ (86,268)	$ 28,652	$ (118,654)	$ 70,852