Restructuring Activities - Restructuring Accruals (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Restructuring Reserve
Restructuring reserve, beginning balance	$ 2.3	$ 0.8	$ 0.9
Restructuring charges	(1.0)	3.5	13.6
Cash payments and other	(1.1)	(2.0)	(13.7)
Restructuring reserve, ending balance	0.2	2.3	0.8
Operating Segments | Cryo Tank Solutions
Restructuring Reserve
Restructuring reserve, beginning balance	0.4	0.5	0.5
Restructuring charges	0.1	0.3	2.7
Cash payments and other	(0.4)	(0.4)	(2.7)
Restructuring reserve, ending balance	0.1	0.4	0.5
Operating Segments | Heat Transfer Systems
Restructuring Reserve
Restructuring reserve, beginning balance	0.5	0.2	0.2
Restructuring charges	0.3	1.7	7.4
Cash payments and other	(0.8)	(1.4)	(7.4)
Restructuring reserve, ending balance	0.0	0.5	0.2
Operating Segments | Specialty Products
Restructuring Reserve
Restructuring reserve, beginning balance	0.0	0.0	0.0
Restructuring charges	0.0	0.0	0.7
Cash payments and other	0.1	0.0	(0.7)
Restructuring reserve, ending balance	0.1	0.0	0.0
Operating Segments | Repair, Service & Leasing
Restructuring Reserve
Restructuring reserve, beginning balance	1.4	0.0	0.0
Restructuring charges	(1.4)	1.5	0.2
Cash payments and other	0.0	(0.1)	(0.2)
Restructuring reserve, ending balance	0.0	1.4	0.0
Corporate
Restructuring Reserve
Restructuring reserve, beginning balance	0.0	0.1	0.2
Restructuring charges	0.0	0.0	2.6
Cash payments and other	0.0	(0.1)	(2.7)
Restructuring reserve, ending balance	$ 0.0	$ 0.0	$ 0.1