Borrowing Arrangements - Long-Term Borrowings Table (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Total obligations under credit facility and other borrowings	$ 386.7	$ 153.8
Less: Current portion of obligations under credit facility and other borrowings	13.2	20.6
Total long-term obligations under credit facility and other borrowings	373.5	133.2
Credit facility, net of original discount on borrowings and deferred financing costs
Debt Instrument [Line Items]
Total obligations under credit facility and other borrowings	371.2	151.0
Other borrowings
Debt Instrument [Line Items]
Total obligations under credit facility and other borrowings	$ 15.5	$ 2.8