Accrued Liabilities and Other Non-Current Liabilities - Accrued Liabilities and Other Non-Current Liabilities, Net (Detail) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Payables and Accruals [Abstract]
Compensation and other employee-related benefits	$ 152.2	$ 147.2
Asbestos-related liability	74.2	77.1
Contract liabilities and other customer-related liabilities (see Note 2)	82.2	45.5
Accrued income taxes and other tax-related liabilities	33.7	36.1
Environmental and other legal matters	24.0	22.8
Accrued warranty costs	16.2	17.0
Other accrued liabilities	34.2	38.7
Accrued and other current liabilities	416.7	384.4
Environmental liabilities	59.5	63.6
Compensation and other employee-related benefits	34.2	36.4
Deferred income taxes and other tax-related liabilities	25.0	19.3
Other	47.8	56.3
Other non-current liabilities	$ 166.5	$ 175.6