Accrued Liabilities and Other Non-Current Liabilities - Accrued Liabilities and Other Non-Current Liabilities, Net (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Payables and Accruals [Abstract]
Compensation and other employee-related benefits	$ 145.4	$ 152.2
Contract liabilities and other customer-related liabilities	74.6	82.2
Asbestos-related liability	86.0	74.2
Accrued income taxes and other tax-related liabilities	27.0	33.7
Operating lease liabilities (see Note 2)	19.9	0.0
Environmental and other legal matters	17.9	24.0
Accrued warranty costs	18.5	16.2
Other	41.5	34.2
Accrued and other current liabilities	430.8	416.7
Environmental liabilities	55.8	59.5
Operating lease liabilities (see Note 2)	76.0	0.0
Compensation and other employee-related benefits	32.4	34.2
Deferred income taxes and other tax-related liabilities	24.0	25.0
Other	46.5	47.8
Other non-current liabilities	$ 234.7	$ 166.5