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Debt Obligations - Schedule of Debt Obligations (Details) - USD ($)
$ in Millions
Jun. 30, 2018
Mar. 31, 2018
Debt Instrument [Line Items]    
Total debt $ 826.8 $ 880.7
Less: Unamortized debt issuance costs 3.7 4.2
Less: Unamortized discount on long-term debt 2.0 2.1
Total carrying value of debt 821.1 874.4
Less: Short-term debt 266.9 200.0
Long-term debt 554.2 674.4
Term Loan    
Debt Instrument [Line Items]    
Total debt 109.0 229.8
4.000% Senior Notes    
Debt Instrument [Line Items]    
Total debt $ 450.0 450.0
Stated interest rate percentage 4.00%  
Other    
Debt Instrument [Line Items]    
Total debt $ 0.9 $ 0.9