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Accounts Payable and Accrued Expenses (Details) - USD ($)
$ in Millions
Sep. 30, 2016
Dec. 31, 2015
Payables and Accruals [Abstract]    
Trade accounts payable $ 184.3 $ 268.5
Employee related expenses 30.2 35.0
Accrued vacation 23.4 25.1
Miscellaneous accrued expenses 112.4 107.7
Total $ 350.3 $ 436.3