Derivative Instruments (Details 2) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Derivative Instruments, Gain (Loss)
Derivative Instruments, Gain (Loss) Recognized in Income, Net	$ 1.9	$ 2.0	$ 6.2	$ 6.0
Designated as Hedging Instrument [Member] | Interest-rate swap
Derivative Instruments, Gain (Loss)
Derivative Instruments, Gain (Loss) Recognized in Income, Net	1.7	2.0	5.6	6.2
Derivatives not designated as hedging instruments | Forward exchange contracts
Derivative Instruments, Gain (Loss)
Derivative Instruments, Gain (Loss) Recognized in Income, Net	$ 0.2	$ 0.0	$ 0.6	$ (0.2)