Business Combinations - Narratives (Details) - USD ($) $ in Millions				6 Months Ended	9 Months Ended
	Mar. 17, 2023	May 31, 2022	May 16, 2022	Sep. 30, 2023	Sep. 30, 2023	Sep. 30, 2022	Mar. 31, 2023	Dec. 31, 2022	Apr. 30, 2021	Dec. 23, 2020	Nov. 03, 2020
Business Acquisition
Acquisition of businesses, net of cash acquired					$ 4,322.3	$ 25.8
Contingent consideration				$ 7.0	7.0			$ 17.3
Howden Industries
Business Acquisition
Total consideration	$ 4,387.4
Revenue, actual				1,028.1
Operating income, actual				46.2
Transaction costs							$ 25.4	4.9
Pension assets	38.7
Pension liabilities	41.1
Pension assets and pension liabilities, net	2.4
Cash consideration	$ 2,788.3
Identifiable intangible assets				2,442.5	2,442.5
Other assets				168.2	168.2
Contingent consideration									$ 1.2
Earn out provision									$ 1.7
Fronti Fabrications, Inc.
Business Acquisition
Voting percentage acquired		100.00%
Cash consideration		$ 20.6
Acquisition of businesses, net of cash acquired		20.4
Cash acquired from acquisition		0.2
Net assets acquired		14.4
Identifiable intangible assets		5.3
Other assets		0.9
Fronti Fabrications, Inc. | Previously Reported
Business Acquisition
Net assets acquired		14.3
Identifiable intangible assets		5.3
Other assets		$ 1.0
CSC Cryogenic Service Center AB
Business Acquisition
Voting percentage acquired			100.00%
Cash consideration			$ 3.8
SES
Business Acquisition
Contingent consideration				7.0	7.0			16.3		$ 16.9
SES | Minimum
Business Acquisition
Contingent consideration				0.0	0.0
SES | Maximum
Business Acquisition
Contingent consideration				25.0	25.0
BIG
Business Acquisition
Contingent consideration				$ 0.0	$ 0.0			$ 1.0			$ 3.2
Earthly Labs Inc.
Business Acquisition
Contingent percent (percent)				4.00%	4.00%