Acquisitions - Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Millions			10 Months Ended
	Jun. 30, 2022	Sep. 01, 2021	Jun. 30, 2022	Dec. 31, 2021
Recognized amounts of identifiable assets acquired and liabilities assumed:
Goodwill	$ 2,201.6		$ 2,201.6	$ 2,199.0
ASP Henry Holdings, Inc.
Acquisitions
Consideration paid	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	51.5	59.4	51.5
Prepaid expenses and other current assets	10.7	10.5	10.7
Property, plant and equipment	61.8	53.6	61.8
Intangible assets	1,181.0	735.1	1,181.0
Other long-term assets	11.9	3.6	11.9
Accounts payable	(75.7)	(77.9)	(75.7)
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	(261.2)	(153.4)	(261.2)
Total identifiable net assets	1,044.1	705.2	1,044.1
Goodwill	$ 561.5	$ 903.0	561.5
ASP Henry Holdings, Inc. | Adjustment
Acquisitions
Consideration paid			(2.6)
Recognized amounts of identifiable assets acquired and liabilities assumed:
Measurement period adjustments, inventory			(7.9)
Measurement period adjustments, prepaid expenses and other current assets			0.2
Measurement period adjustments, property, plant and equipment			8.2
Measurement period adjustments, definite-lived intangible assets			445.9
Measurement period adjustments, other long-term assets			8.3
Measurement period adjustments, accounts payable			2.2
Measurement period adjustments, accrued and other current liabilities			(0.4)
Measurement period adjustments, other long-term liabilities			(9.8)
Measurement period adjustments, deferred income taxes			(107.8)
Measurement period adjustments, total identifiable assets			338.9
Measurement period adjustments, goodwill			$ (341.5)