Derivatives and Hedging Activities (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Forward Currency Forward Contracts [Abstract]
Unrealized Gain on Foreign Currency Derivatives, before Tax	$ (0.6)	$ (0.2)		$ (0.4)
Unrealized Gain (Loss) on Price Risk Cash Flow Derivatives, before Tax	(0.6)	(0.7)	$ 0.0	(0.9)
Foreign Currency Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net			0.6	(0.6)
Foreign Currency Fair Value Hedge Asset at Fair Value	0.7		0.7		$ 0.6
Derivative, Notional Amount	270.8		270.8		194.1
Gain (Loss) on Foreign Currency Derivative Instruments Not Designated as Hedging Instruments	(6.7)	0.1	6.6	4.3
Foreign Currency Fair Value Hedge Liability at Fair Value	0.7		0.7		0.0
Derivative Instruments in Hedges, Assets, at Fair Value	0.7		0.7		0.6
Derivative Instruments in Hedges, Liabilities, at Fair Value	0.7		0.7		0.0
Foreign Currency Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value	19.9		19.9		11.8
Foreign Currency Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value	1.9		1.9		0.3
Derivative Asset	20.6		20.6		12.4
Derivative Liability	2.6		2.6		$ 0.3
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net			0.5	(0.6)
Derivative Instruments Not Designated as Hedging Instruments, Gain	(6.7)	0.1	6.6	4.3
Interest Rate Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net	$ (0.1)	$ 0.0	$ (0.1)	$ 0.0