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Commitments and Contingencies - Changes in Carrying Amount of Service and Product Warranties (Detail)
$ in Millions
3 Months Ended
Mar. 31, 2019
USD ($)
Movement in Standard Product Warranty Accrual [Roll Forward]  
Beginning balance $ 33.9
Service and product warranty provision 11.2
Payments (10.5)
Foreign currency translation 0.0
Ending balance $ 34.6