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Employee Benefit Plans - Accumulated Benefit Obligations in Excess of Plan Assets (Details) - Foreign Pension Plan - USD ($)
$ in Millions
Dec. 31, 2015
Dec. 31, 2014
Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets [Abstract]    
Projected benefit obligation $ 32.4 $ 58.3
Accumulated benefit obligation 31.0 56.2
Fair value of plan assets $ 25.0 $ 45.9