Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 01, 2017	Jul. 02, 2016	Jul. 01, 2017	Jul. 02, 2016
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (58,240)	$ 6,341	$ (118,319)	$ 17,376
Cash flow hedges:
Change in unrealized gain (loss) on cash flow hedges, net of tax benefit (expense) of $404, $(245), $202 and $1,469, respectively	(12,629)	5,538	(13,789)	3,005
Less: reclassification for realized net gains included in net income, net of tax expense (benefit) of $(46), $(216), $(8) and $509, respectively	1,430	(407)	1,647	(1,978)
Net change, net of tax	(11,199)	5,131	(12,142)	1,027
Change in foreign currency translation adjustment	585	(88)	314	(160)
Change in unrealized loss on available-for-sale investments, net of tax	9	67	85	126
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, Net of Tax	(3)	0	(12)	0
Other comprehensive income (loss)	6	67	73	126
Comprehensive income (loss)	$ (68,848)	$ 11,451	$ (130,074)	$ 18,369