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Commitments and Contingencies - Summary of Changes in Warranty Liabilities (Details) - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]    
Balance at January 1 $ 6.4 $ 7.4
Provisions to expense 2.3 2.8
Acquisitions 1.5 0.0
Payments (2.8) (3.0)
Balance at June 30 $ 7.4 $ 7.2