Condensed Consolidated Statements of Comprehensive Loss - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 03, 2021	Jun. 27, 2020	Jul. 03, 2021	Jun. 27, 2020
Statement of Comprehensive Income [Abstract]
Net loss	$ (8.3)	$ (136.0)	$ (18.5)	$ (132.5)
Other comprehensive income (loss):
Currency translation adjustment	2.0	8.4	8.5	(10.3)
Loss on derivative instruments, net of tax	0.0	0.0	0.0	(11.2)	[1]
Comprehensive loss	$ (6.3)	$ (127.6)	$ (10.0)	$ (154.0)

[1] Net of the effect of $3.0 million tax benefit and of $1.3 million associated tax impact that resulted in a decrease to the gain on sale of discontinued operations for the six months ended June 27, 2020.