Reportable Segments - Assets (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Assets
Assets	$ 9,020.2	$ 5,901.9
Goodwill	2,809.3	992.0
Identifiable intangible assets, net	2,812.2	535.3
Insurance receivable, net of tax	0.0	251.4
Cryo Tank Solutions
Assets
Goodwill	198.4	79.1
Heat Transfer Systems
Assets
Goodwill	451.3	430.5
Specialty Products
Assets
Goodwill	577.2	304.0
Repair, Service & Leasing
Assets
Goodwill	1,582.4	178.4
Operating Segments
Assets
Assets	2,924.9	1,292.5
Operating Segments | Cryo Tank Solutions
Assets
Assets	612.5	382.0
Operating Segments | Heat Transfer Systems
Assets
Assets	673.2	298.6
Operating Segments | Specialty Products
Assets
Assets	820.8	429.8
Operating Segments | Repair, Service & Leasing
Assets
Assets	818.4	182.1
Corporate
Assets
Assets	$ 473.8	$ 2,830.7