Reportable Segments - Product Sales Information (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2021	Mar. 31, 2020
Segment Reporting Information
Sales to external customers	$ 288.5	$ 301.9
North America
Segment Reporting Information
Sales to external customers	140.8	178.5
Europe, Middle East, Africa and India
Segment Reporting Information
Sales to external customers	100.6	75.4
Asia-Pacific
Segment Reporting Information
Sales to external customers	45.8	44.4
Rest of the World
Segment Reporting Information
Sales to external customers	1.3	3.6
Operating Segments \| Cryo Tank Solutions
Segment Reporting Information
Sales to external customers	103.9	98.0
Operating Segments \| Cryo Tank Solutions \| North America
Segment Reporting Information
Sales to external customers	41.1	40.6
Operating Segments \| Cryo Tank Solutions \| Europe, Middle East, Africa and India
Segment Reporting Information
Sales to external customers	37.7	34.3
Operating Segments \| Cryo Tank Solutions \| Asia-Pacific
Segment Reporting Information
Sales to external customers	24.2	20.1
Operating Segments \| Cryo Tank Solutions \| Rest of the World
Segment Reporting Information
Sales to external customers	0.9	3.0
Operating Segments \| Heat Transfer Systems
Segment Reporting Information
Sales to external customers	69.2	112.9
Operating Segments \| Heat Transfer Systems \| North America
Segment Reporting Information
Sales to external customers	46.3	82.2
Operating Segments \| Heat Transfer Systems \| Europe, Middle East, Africa and India
Segment Reporting Information
Sales to external customers	7.8	9.5
Operating Segments \| Heat Transfer Systems \| Asia-Pacific
Segment Reporting Information
Sales to external customers	14.8	20.9
Operating Segments \| Heat Transfer Systems \| Rest of the World
Segment Reporting Information
Sales to external customers	0.3	0.3
Operating Segments \| Specialty Products
Segment Reporting Information
Sales to external customers	77.3	52.9
Operating Segments \| Specialty Products \| North America
Segment Reporting Information
Sales to external customers	26.1	24.9
Operating Segments \| Specialty Products \| Europe, Middle East, Africa and India
Segment Reporting Information
Sales to external customers	45.6	25.6
Operating Segments \| Specialty Products \| Asia-Pacific
Segment Reporting Information
Sales to external customers	5.6	2.2
Operating Segments \| Specialty Products \| Rest of the World
Segment Reporting Information
Sales to external customers	0.0	0.2
Operating Segments \| Repair, Service & Leasing
Segment Reporting Information
Sales to external customers	41.4	40.7
Operating Segments \| Repair, Service & Leasing \| North America
Segment Reporting Information
Sales to external customers	29.0	32.1
Operating Segments \| Repair, Service & Leasing \| Europe, Middle East, Africa and India
Segment Reporting Information
Sales to external customers	10.5	6.7
Operating Segments \| Repair, Service & Leasing \| Asia-Pacific
Segment Reporting Information
Sales to external customers	1.8	1.7
Operating Segments \| Repair, Service & Leasing \| Rest of the World
Segment Reporting Information
Sales to external customers	0.1	0.2
Intersegment Eliminations
Segment Reporting Information
Sales to external customers	(3.3)	(2.6)
Intersegment Eliminations \| North America
Segment Reporting Information
Sales to external customers	(1.7)	(1.3)
Intersegment Eliminations \| Europe, Middle East, Africa and India
Segment Reporting Information
Sales to external customers	(1.0)	(0.7)
Intersegment Eliminations \| Asia-Pacific
Segment Reporting Information
Sales to external customers	(0.6)	(0.5)
Intersegment Eliminations \| Rest of the World
Segment Reporting Information
Sales to external customers	$ 0.0	$ (0.1)