Derivative Financial Instruments - Schedule of Change in Fair Value of Foreign Currency Forward Exchange Contracts Under Hedge Designations (Details) - Designated as Hedging Instrument - Foreign Currency Forward Exchange Contracts - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Derivative [Line Items]
Unrealized (losses) gains at beginning of period, net of tax	$ (25.2)	$ 6.7	$ (9.2)	$ 7.2
Losses (gains) reclassified to net sales	4.6	(1.3)	7.4	(2.3)
Increase (decrease) in fair value	5.3	0.7	(13.5)	1.2
Unrealized (losses) gains at end of period, net of tax	$ (15.3)	$ 6.1	$ (15.3)	$ 6.1