Financial Instruments - Fair Value of Derivative Financial Instruments in Consolidated Balance Sheet (Details) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Interest Rate Swap | Designated as Hedging Instrument | Prepaid expenses and other
Derivative Instruments [Abstract]
Fair value of gross derivative asset	$ 0.0	$ 0.0
Interest Rate Swap | Designated as Hedging Instrument | Other assets
Derivative Instruments [Abstract]
Fair value of gross derivative asset	0.0	0.0
Interest Rate Swap | Designated as Hedging Instrument | Accrued Expenses
Derivative Instruments [Abstract]
Fair value of gross derivative liabilities	4.2	2.1
Interest Rate Swap | Designated as Hedging Instrument | Other long-term liabilities
Derivative Instruments [Abstract]
Fair value of gross derivative liabilities	4.1	1.4
Foreign exchange contracts | Not Designated as Hedging Instrument | Prepaid expenses and other
Derivative Instruments [Abstract]
Fair value of gross derivative asset	2.8	0.2
Foreign exchange contracts | Not Designated as Hedging Instrument | Accrued Expenses
Derivative Instruments [Abstract]
Fair value of gross derivative liabilities	$ 0.6	$ 0.0