Retirement Plans - Schedule of Amounts Included in Accumulated Other Comprehensive Loss, Net of Tax which have Not yet been Recognized in Net Periodic Benefit Cost (Detail) - USD ($) $ in Millions	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Benefit Plans [Line Items]
Unrecognized net actuarial (loss) income	$ 0.3	$ (16.8)	$ (14.4)
Total accumulated other comprehensive (loss) income	0.3	(16.8)	(14.4)
U.S.
Benefit Plans [Line Items]
Unrecognized net actuarial (loss) income	(0.1)	(0.6)	(1.2)
Total accumulated other comprehensive (loss) income	(0.1)	(0.6)	(1.2)
International
Benefit Plans [Line Items]
Unrecognized net actuarial (loss) income	0.4	(16.2)	(13.2)
Total accumulated other comprehensive (loss) income	$ 0.4	$ (16.2)	$ (13.2)