Financial Instruments - Fair Value of Derivative Financial Instruments in Consolidated Balance Sheet (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012
Derivative Instruments [Abstract]
Derivative Asset, Fair Value, Gross Asset	$ 3.5		$ 0.1
Interest Rate Swap | Designated as Hedging Instrument | Other assets
Derivative Instruments [Abstract]
Derivative Asset, Fair Value, Gross Asset	2.5	[1]	0	[1]
Foreign exchange contracts | Not Designated as Hedging Instrument | Prepaid expenses and other
Derivative Instruments [Abstract]
Derivative Asset, Fair Value, Gross Asset	1.0	[2]	0.1	[2]
Foreign exchange contracts | Not Designated as Hedging Instrument | Accrued Expenses
Derivative Instruments [Abstract]
Derivative Liability, Fair Value, Gross Liability	$ 0.2	[2]	$ 0.4	[2]

[1] The fair value of the 2013 Interest Rate Swap at December 31, 2013 was measured based on the implied forward rates from the U.S. Dollar three-month LIBOR yield curve at December 31, 2013.

[2] The fair values of the FX Contracts at December 31, 2013 and December 31, 2012 were measured based on observable market transactions of spot and forward rates at December 31, 2013 and December 31, 2012, respectively.