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Employee Benefit Plan (Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets) (Details) - USD ($)
$ in Millions
Jun. 30, 2016
Jun. 30, 2015
Compensation and Retirement Disclosure [Abstract]    
Projected benefit obligation $ 165.7 $ 131.5
Accumulated benefit obligation 148.2 117.4
Fair value of plan assets $ 21.6 $ 4.5