Debt - Schedule of Debt (Details) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Principal	$ 894.6	$ 945.1
Unamortized Discount and Debt Issuance Costs	10.2	11.9
Net	884.4	933.2
Principal, Current portion	(7.0)	(16.9)
Unamortized Discount and Debt Issuance Costs, Current portion	0.0	(0.1)
Net, Current portion	(7.0)	(16.8)
Principal, Net	887.6	928.2
Unamortized Discount and Debt Issuance Costs, Net	10.2	11.8
Net	877.4	916.4
Secured Debt [Member] | Senior Secured Term Loan Facility Due September 2023 [Member]
Debt Instrument [Line Items]
Principal	887.5	937.5
Unamortized Discount and Debt Issuance Costs	10.2	11.9
Net	877.3	925.6
Line of Credit [Member] | Other Lines of Credit [Member]
Debt Instrument [Line Items]
Principal	6.9	7.4
Unamortized Discount and Debt Issuance Costs	0.0	0.0
Net	6.9	7.4
Capital Lease Obligations and Other [Member]
Debt Instrument [Line Items]
Principal	0.2	0.2
Unamortized Discount and Debt Issuance Costs	0.0	0.0
Net	$ 0.2	$ 0.2