Derivative Instruments (Details 2) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Derivative Instruments, Gain (Loss)
Derivative Instruments, Gain (Loss) Recognized in Income, Net	$ 1.7	$ 2.1	$ 4.3	$ 3.9
Designated as Hedging Instrument [Member] | Interest-rate swap
Derivative Instruments, Gain (Loss)
Derivative Instruments, Gain (Loss) Recognized in Income, Net	1.9	2.1	3.9	4.2
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	$ 0.4	$ (0.3)