Derivative Financial Instruments and Risk Management - Fair Value of Foreign Currency Derivatives in Balance Sheet (Details) - USD ($) $ in Millions	Jun. 30, 2016	Dec. 31, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative asset, current	$ 4.7	$ 5.8
Derivative liability, current	4.6	1.3
Derivative asset, noncurrent	0.9	1.2
Derivative liability, noncurrent	0.0	0.1
Total derivative asset	5.6	7.0
Total derivative liability	$ 4.6	$ 1.4