Recently Issued Accounting Pronouncements - Additional Information (Detail) - USD ($) $ in Millions		Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015
Recently Issued Accounting Pronouncements [Line Items]
Debt liability	[1]	$ 1,460.0		$ 1,499.4
ASU 2015-17, Balance Sheet Classification of Deferred Taxes | Restatement Adjustment
Recently Issued Accounting Pronouncements [Line Items]
Current deferred tax assets			$ (70.0)
Non-current deferred tax assets			70.0
Current deferred tax liabilities			(20.0)
Non-current deferred tax liabilities			20.0
ASU 2015-03 - Simplifying the Presentation of Debt Issuance Costs | Restatement Adjustment
Recently Issued Accounting Pronouncements [Line Items]
Debt issuance cost asset		(1.7)	(1.7)
Debt liability		$ 1.7	$ 1.7

[1] Debt as reported in balance sheet.