Supplemental Balance Sheet Information (Detail) - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Inventories
Raw materials and supplies	$ 198.0	$ 191.3
Work-in-process	63.4	64.0
Finished goods	128.9	132.2
Total inventories	390.3	387.5
Other current assets
Cost in excess of billings	37.3	36.5
Prepaid expenses	42.7	36.7
Prepaid income taxes	9.4	8.5
Other current assets	5.7	7.7
Total other current assets	95.1	89.4
Property, plant and equipment, net
Land and land improvements	33.1	33.5
Buildings and leasehold improvements	186.4	178.9
Machinery and equipment	608.7	593.8
Construction in progress	40.1	35.7
Total property, plant and equipment	868.3	841.9
Accumulated depreciation and amortization	590.4	569.3
Total property, plant and equipment, net	277.9	272.6
Operating Lease, Right-of-Use Asset	80.0	0.0
Other non-current assets
Prepaid income taxes	26.3	26.2
Deferred compensation plan assets	20.0	20.9
Other non-current assets	71.2	98.4
Total other non-current assets	197.5	145.5
Other current liabilities
Dividends payable	30.3	30.8
Accrued warranty	30.6	33.9
Accrued rebates and incentives	105.1	76.9
Billings in excess of cost	21.5	21.3
Operating Lease, Liability, Current	19.8	0.0
Income taxes payable	12.0	10.4
Accrued restructuring	17.0	27.1
Other current liabilities	133.8	128.0
Total other current liabilities	370.1	328.4
Operating Lease, Liability, Noncurrent	63.0	0.0
Other non-current liabilities
Income taxes payable	45.8	46.8
Self-insurance liabilities	43.1	47.7
Deferred compensation plan liabilities	20.0	20.9
Foreign currency contract liabilities	1.9	30.6
Other non-current liabilities	25.4	22.2
Total other non-current liabilities	$ 199.2	$ 168.2