Property and Equipment, net - Schedule of Property and Equipment, Net (Parenthetical) (Detail) - USD ($) $ in Millions		Sep. 30, 2016	Dec. 31, 2015
Property Plant And Equipment [Line Items]
Accumulated depreciation and amortization	[1]	$ 2,291.2	$ 2,219.1	[2]
Restatement Adjustment [Member]
Property Plant And Equipment [Line Items]
Increase to property and equipment, net			15.0
Increase to other non-current liabilities			$ 15.0
Venezuela [Member]
Property Plant And Equipment [Line Items]
Accumulated depreciation and amortization		$ 0.5

[1] As of September 30, 2016 this amount includes $0.5 million related to the accelerated depreciation and amortization of fixed assets related to ceasing operations in Venezuela. Refer to Note 1 of the Condensed Consolidated Statement of Operations for further details.

[2] Amounts related to asset retirement obligations were recorded as of December 31, 2015. This resulted in an increase to property and equipment, net and other non-current liabilities of $15.0 million.