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Commitments and Contingencies - Summary of Changes in Warranty Liabilities (Details) - USD ($)
$ in Millions
9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]    
Balance at January 1 $ 6.4 $ 7.4
Provisions to expense 4.3 4.0
Acquisitions 1.4 0.0
Payments (4.7) (4.7)
Balance at September 30 $ 7.4 $ 6.7