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Derivative Financial Instruments and Hedging Activities - Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Derivative [Line Items]    
Deferred unrealized losses $ (1.7) $ (8.8)
Deferred unrealized losses, tax 0.1 $ 0.5
Amortization of accumulated losses on cash flow hedges from AOCL to other income (expense), net, projection $ 0.2