CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 01, 2016	Jul. 03, 2015	Jul. 01, 2016	Jul. 03, 2015
Net loss	$ (20,679)	$ (994)	$ (45,859)	$ (3,651)
Other comprehensive income (loss) before tax:
Unrealized gains (losses) arising during the period	(165)	516	158	332
Losses (gains) reclassified into earnings	22	(138)	100	(187)
Change in unrealized gains (losses) on cash flow hedges:	(143)	378	258	145
Unrealized gains (losses) arising during the period	(49)	460	30	945
Loss reclassified into earnings	0	0	1,476	0
Change in unrealized gains (losses) on available-for-sale securities:	(49)	460	1,506	945
Change in foreign currency translation adjustments	(2,611)	582	(677)	(402)
Other comprehensive income (loss) before tax	(2,803)	1,420	1,087	688
Less: Provision for (benefit from) income taxes	5	(10)	23	(6)
Other comprehensive income (loss), net of tax	(2,808)	1,430	1,064	694
Total comprehensive income (losses)	$ (23,487)	$ 436	$ (44,795)	$ (2,957)