Acquisitions - Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Millions			12 Months Ended
	Aug. 31, 2022	Sep. 01, 2021	Dec. 31, 2022	Aug. 31, 2022	Dec. 31, 2023	Nov. 08, 2023	Dec. 31, 2021
Recognized amounts of identifiable assets acquired and liabilities assumed:
Other intangible assets		$ 1,181.0
Accrued and other current liabilities						$ (0.2)
Goodwill			$ 1,177.6		$ 1,202.5		$ 1,172.6
Measurement period adjustments, goodwill			$ 1.3
ASP Henry Holdings, Inc.
Acquisitions
Consideration transferred	$ 1,605.6	1,608.2
Recognized amounts of identifiable assets acquired and liabilities assumed:
Cash and cash equivalents	34.3	34.3		$ 34.3
Receivables, net	79.0	79.0		79.0
Inventories	50.0	59.4		50.0
Prepaid expenses and other current assets	10.5	10.5		10.5
Property, plant and equipment	61.8	53.6		61.8
Other intangible assets	1,181.0	735.1		1,181.0
Other long-term assets	11.9	3.6		11.9
Accounts payable	(75.6)	(77.9)		(75.6)
Accrued and other current liabilities	(29.1)	(28.7)		(29.1)
Short-term debt	(1.0)	(1.0)		(1.0)
Contract liabilities	(2.6)	(2.6)		(2.6)
Other long-term debt	(0.8)	(0.8)		(0.8)
Other long-term liabilities	(15.7)	(5.9)		(15.7)
Deferred income taxes	(263.1)	(153.4)		(263.1)
Total identifiable net assets	1,040.6	705.2		1,040.6
Goodwill	$ 565.0	$ 903.0		565.0
ASP Henry Holdings, Inc. | Adjustment
Acquisitions
Measurement period adjustments, total consideration transferred				(2.6)
Recognized amounts of identifiable assets acquired and liabilities assumed:
Measurement period adjustments, cash and cash equivalents				0.0
Measurement period adjustments, receivables, net				0.0
Measurement period adjustments, inventories, net				(9.4)
Measurement period adjustments, prepaid expenses and other current assets				0.0
Measurement period adjustments, property, plant and equipment				8.2
Measurement period adjustments, intangibles, net				445.9
Measurement period adjustments, other long-term assets				8.3
Measurement period adjustments, accounts payable				2.3
Measurement period adjustments, accrued and other current liabilities				(0.4)
Measurement period adjustments, short-term debt				0.0
Measurement period adjustments, contract liabilities				0.0
Measurement period adjustments, other long-term debt				0.0
Measurement period adjustments, other long-term liabilities				(9.8)
Measurement period adjustments, deferred income taxes				(109.7)
Measurement period adjustments, total identifiable net assets				335.4
Measurement period adjustments, goodwill				$ (338.0)