Fair Value Measurements and Other Financial Instruments - Fair Value Hierarchy of Financial Instruments (Detail) - USD ($) $ in Millions	Mar. 31, 2017	Dec. 31, 2016
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Cash equivalents	$ 40.8	$ 71.3
Compensating balance deposits	54.1	52.9
Level 1 [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Cash equivalents	40.8	71.3
Compensating balance deposits	54.1	52.9
Foreign Currency Forward Contracts and Options [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair Value of (Liability) Derivatives	17.1
Foreign Currency Forward Contracts and Options [Member] | Level 2 [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair Value of (Liability) Derivatives	17.1
Interest Rate and Currency Swap [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair Value of (Liability) Derivatives	20.0	23.9
Interest Rate and Currency Swap [Member] | Level 2 [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair Value of (Liability) Derivatives	20.0	23.9
Cross-Currency Swaps [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair Value of (Liability) Derivatives	(7.0)	(5.3)
Cross-Currency Swaps [Member] | Level 2 [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair Value of (Liability) Derivatives	$ (7.0)	(5.3)
Foreign Currency Forward Contracts [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair Value of (Liability) Derivatives		4.7
Foreign Currency Forward Contracts [Member] | Level 2 [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair Value of (Liability) Derivatives		$ 4.7