Derivative Instruments and Hedging Activities (Fair Value of Derivative Instruments Outstanding) (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Derivatives not designated as hedges, asset	$ 0.9	$ 3.4
Derivatives not designated as hedges, liability	4.7	0.3
Total derivatives, asset	0.9	3.4
Total derivatives, liability	4.7	0.3
Foreign Exchange Forward Contracts [Member] | Prepaid expenses and other [Member]
Derivatives not designated as hedges, asset	0.9	3.4
Foreign Exchange Forward Contracts [Member] | Accounts payable [Member]
Derivatives not designated as hedges, liability	$ 4.7	$ 0.3