Reportable Segments - Assets (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Assets
Assets	$ 2,830.0	$ 2,570.5
Goodwill	896.1	865.9
Identifiable intangible assets, net	491.0	493.1
Cryo Tank Solutions
Assets
Goodwill	89.8	93.2
Heat Transfer Systems
Assets
Goodwill	433.3	435.2
Specialty Products
Assets
Goodwill	207.9	172.4
Repair, Service & Leasing
Assets
Goodwill	165.1	165.1
Operating Segments
Assets
Assets	1,084.2	967.3
Operating Segments \| Cryo Tank Solutions
Assets
Assets	400.4	399.2
Operating Segments \| Heat Transfer Systems
Assets
Assets	243.0	247.2
Operating Segments \| Specialty Products
Assets
Assets	265.6	178.3
Operating Segments \| Repair, Service & Leasing
Assets
Assets	175.2	142.6
Corporate
Assets
Assets	$ 358.7	$ 244.2

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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