Supplemental Balance Sheet Information (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Inventories
Raw materials and supplies	$ 71.6	$ 67.1
Work-in-process	25.8	25.6
Finished goods	150.1	152.0
Total inventories	247.5	244.7
Other current assets
Contract assets	56.1	69.4
Prepaid expenses	32.3	32.5
Prepaid income taxes	9.4	9.0
Other current assets	2.6	2.4
Total other current assets	100.4	113.3
Property, plant and equipment, net
Land and land improvements	39.8	40.6
Buildings and leasehold improvements	177.3	181.6
Machinery and equipment	450.5	440.4
Construction in progress	17.6	16.5
Total property, plant and equipment	685.2	679.1
Accumulated depreciation and amortization	408.4	394.6
Total property, plant and equipment, net	276.8	284.5
Other non-current assets
Deferred compensation plan assets	16.3	17.3
Lease right-of-use assets	47.3	44.2
Deferred tax assets	24.8	40.9
Other non-current assets	27.2	15.1
Total other non-current assets	115.6	117.5
Other current liabilities
Dividends payable	29.7	29.7
Accrued rebates	31.5	44.1
Contract liabilities	13.1	13.7
Accrued taxes payable	19.2	24.8
Current lease liabilities	14.4	14.7
Other current liabilities	61.9	58.7
Total other current liabilities	169.8	185.7
Other non-current liabilities
Income taxes payable	34.3	31.9
Deferred compensation plan liabilities	16.3	17.3
Non-current lease liabilities	37.1	33.7
Other non-current liabilities	7.9	10.6
Total other non-current liabilities	$ 95.6	$ 93.5