Income Taxes - Provisions for Income Taxes (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Current expense:
Federal	$ 10.6	$ 6.7	$ 48.1
State	0.5	2.4	1.9
Foreign	12.5	10.9	14.0
Deferred expense (credit):
Federal	(5.8)	2.1	(72.0)
State	(2.0)	3.3	(0.2)
Foreign	1.2	1.7	(1.7)
Total provision for income taxes	$ 17.0	$ 27.1	$ (9.9)