Fair Value Measurements - Fair Values of Assets and Liabilities Measured on a Recurring Basis (Detail) - USD ($) $ in Millions	Dec. 27, 2019	Dec. 28, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency cash flow hedge derivative at fair value, net	$ 1.7	$ 1.6
Fair Value Measurements, Recurring Basis | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency cash flow hedge derivative at fair value, net	0.0	0.0
Interest rate contracts, net asset (liability)	0.0	0.0
Fair Value Measurements, Recurring Basis | Significant Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency cash flow hedge derivative at fair value, net	1.0	0.8
Interest rate contracts, net asset (liability)	(30.3)	7.6
Fair Value Measurements, Recurring Basis | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency cash flow hedge derivative at fair value, net	0.0	0.0
Interest rate contracts, net asset (liability)	$ 0.0	$ 0.0