Condensed Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 28, 2019	Sep. 29, 2018	Sep. 28, 2019	Sep. 29, 2018
Statement of Comprehensive Income [Abstract]
Net loss	$ (51,893)	$ (2,056)	$ (199,876)	$ (201,201)
Cash flow hedges:
Change in unrealized gain (loss) on cash flow hedges, net of tax benefit of $0, $43, $0 and $709, respectively	(66)	868	(66)	6,780
Less: reclassification for realized net loss included in net loss, net of tax benefit of $0, $(115), $0 and $(244), respectively	0	(2,334)	0	(3,362)
Net change, net of tax	(66)	(1,466)	(66)	3,418
Available-for-sale investments:
Change in unrealized gain (loss) on investments	35	120	364	(88)
Less reclassification for realized net gain included in net loss	0	0	0	12
Net change, net of tax	35	120	364	(76)
Comprehensive loss	$ (51,924)	$ (3,402)	$ (199,578)	$ (197,859)

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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