Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands		3 Months Ended
		Apr. 04, 2021	Mar. 31, 2020
Condensed Consolidated Statements of Comprehensive Income (Loss)
Net loss		$ (95,839)	$ (84,546)
Other comprehensive (loss) income, net of tax:
Foreign currency translation adjustment	[1]	(1,973)	(14,198)
Defined benefit retirement plan	[2]	255	193
Change in cash flow hedging	[3]	3,927	(21,708)
Other comprehensive income (loss), net of tax		2,209	(35,713)
Comprehensive loss		$ (93,630)	$ (120,259)

[1] Foreign currency translation adjustment is presented net of tax benefit of $0.4 million for the three months ended April 4, 2021, and tax benefit of $3.8 million for the three months ended March 31, 2020

[2] Defined benefit retirement plan is presented net of tax expense of $0.1 million for the three months ended April 4, 2021 and March 31, 2020.

[3] Change in cash flow hedging is presented net of tax expense of $1.3 million for the three months ended April 4, 2021 and tax benefit of $7.2 million for the three months ended March 31, 2020, respectively.