Acquisitions - Purchase Price Allocation Identifiable Intangible Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Business Acquisition [Line Items]
Goodwill	$ 1,022.7	$ 1,047.6	$ 993.7
Other intangible assets		0.0
Bargain purchase price gain	(0.9)	(11.1)	0.0
Cash paid for acquisitions, net of cash acquired	7.5	24.0	$ 226.5
2021 Acquisitions
Business Acquisition [Line Items]
Accounts receivable	0.2
Inventories	1.1
Other current assets	0.0
Property, plant and equipment	0.6
Operating lease assets	0.2
Goodwill	5.4
Other intangible assets	2.2
Total assets acquired	9.7
Accounts payable, trade	0.3
Other current liabilities	0.0
Accrued postretirement liability	1.5
Long-term operating lease liabilities	0.2
Total liabilities assumed	2.0
Net assets acquired	7.7
Working capital adjustment related to 2019 acquisitions paid in 2020	0.0
Working capital adjustment related to 2020 acquisition received in 2021	(0.2)
Bargain purchase price gain	0.0
Cash paid for acquisitions, net of cash acquired	$ 7.5
2020 Acquisitions
Business Acquisition [Line Items]
Accounts receivable		2.7
Inventories		16.9
Other current assets		0.1
Property, plant and equipment		10.9
Operating lease assets		0.0
Goodwill		0.0
Other intangible assets		0.0
Total assets acquired		30.6
Accounts payable, trade		0.8
Other current liabilities		0.5
Accrued postretirement liability		0.0
Long-term operating lease liabilities		0.0
Total liabilities assumed		1.3
Net assets acquired		29.3
Working capital adjustment related to 2019 acquisitions paid in 2020		6.7
Working capital adjustment related to 2020 acquisition received in 2021		0.0
Bargain purchase price gain		(12.0)
Cash paid for acquisitions, net of cash acquired		$ 24.0