Revenue - Disaggregation by Timing (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disaggregation of Revenue
Sales to external customers	$ 378.9	$ 328.3	$ 322.0	$ 288.5	$ 312.4	$ 273.2	$ 289.6	$ 301.9	$ 1,317.7	$ 1,177.1	$ 1,215.5
Point in time
Disaggregation of Revenue
Sales to external customers									835.7	697.3	685.1
Over time
Disaggregation of Revenue
Sales to external customers									482.0	479.8	530.4
Operating Segments | Cryo Tank Solutions
Disaggregation of Revenue
Sales to external customers									447.4	415.8	409.9
Operating Segments | Cryo Tank Solutions | Point in time
Disaggregation of Revenue
Sales to external customers									407.6	378.3	385.2
Operating Segments | Cryo Tank Solutions | Over time
Disaggregation of Revenue
Sales to external customers									39.8	37.5	24.7
Operating Segments | Heat Transfer Systems
Disaggregation of Revenue
Sales to external customers									262.7	369.8	441.7
Operating Segments | Heat Transfer Systems | Point in time
Disaggregation of Revenue
Sales to external customers									19.2	28.6	26.3
Operating Segments | Heat Transfer Systems | Over time
Disaggregation of Revenue
Sales to external customers									243.5	341.2	415.4
Operating Segments | Specialty Products
Disaggregation of Revenue
Sales to external customers									432.9	242.6	207.9
Operating Segments | Specialty Products | Point in time
Disaggregation of Revenue
Sales to external customers									300.5	184.6	161.2
Operating Segments | Specialty Products | Over time
Disaggregation of Revenue
Sales to external customers									132.4	58.0	46.7
Operating Segments | Repair, Service & Leasing
Disaggregation of Revenue
Sales to external customers									187.0	158.3	162.6
Operating Segments | Repair, Service & Leasing | Point in time
Disaggregation of Revenue
Sales to external customers									119.1	110.3	117.6
Operating Segments | Repair, Service & Leasing | Over time
Disaggregation of Revenue
Sales to external customers									67.9	48.0	45.0
Intersegment Eliminations
Disaggregation of Revenue
Sales to external customers									(12.3)	(9.4)	(6.6)
Intersegment Eliminations | Point in time
Disaggregation of Revenue
Sales to external customers									(10.7)	(4.5)	(5.2)
Intersegment Eliminations | Over time
Disaggregation of Revenue
Sales to external customers									$ (1.6)	$ (4.9)	$ (1.4)