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Derivative Instruments and Hedging Activity (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Dec. 31, 2016
Maximum [Member]          
Derivative instruments and hedging activity for the period [Abstract]          
Number of months for contracts to mature     18 months    
Forward Exchange Contracts [Member]          
Derivative instruments and hedging activity for the period [Abstract]          
Amount of gain (loss) reclassified into net earnings $ 0.2 $ (0.2) $ 0.2 $ (0.7)  
Forward Exchange Contracts [Member] | Cash Flow Hedges [Member]          
Derivative instruments and hedging activity for the period [Abstract]          
Derivative, fair value 23.0   23.0   $ 25.4
Foreign Currency Denominated Debt, Net Investment Hedging [Member]          
Derivative instruments and hedging activity for the period [Abstract]          
Carrying value of foreign denominated debt 251.1   251.1   $ 195.6
Impact of foreign exchange rates on debt instruments recorded in Other Comprehensive Income $ 15.5   $ 18.1