Basis of Presentation - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Income tax provision	$ (23.4)	$ (26.7)
New Accounting Pronouncement, 2016-16
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect on retained earnings, net of tax	5.2
Impact on other current assets	5.4
Deferred tax liability, intra-entity transfer, asset other than inventory	0.2
New Accounting Pronouncement, 2016-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Income tax provision	27.0
New Accounting Pronouncement, 2016-18
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Change in restricted cash	$ 130.2