Hedging Transactions and Derivative Financial Instruments - Cash Flow Hedges in AOCI and Statement of Operations (Details) (Cash flow hedging, USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Foreign currency contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Recognized in Other Comprehensive Income (OCI)	$ (0.4)
Foreign currency contracts | Costs and expenses
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Reclassified from AOCI into Income (Effective Portion)	(0.4)
Interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Recognized in Other Comprehensive Income (OCI)	(0.8)	(0.8)	(0.7)
Interest rate contracts | Interest expense
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Reclassified from AOCI into Income (Effective Portion)	$ (2.5)	$ (2.8)	$ 0