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Borrowing Arrangements - Schedule of Long-Term Borrowing (Details) - USD ($)
$ in Millions
Sep. 30, 2017
Dec. 31, 2016
Debt Instrument [Line Items]    
Long-term debt $ 173.4 $ 195.1
Less: Current portion of obligations under Restated Credit Facility and other borrowings 20.4 20.4
Total long-term obligations under Restated Credit Facility and other borrowings 153.0 174.7
Restated Credit Facility, net of original discount on borrowings and deferred financing costs    
Debt Instrument [Line Items]    
Long-term debt 172.0 193.4
Other borrowings    
Debt Instrument [Line Items]    
Long-term debt $ 1.4 $ 1.7