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Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Disaggregation of Revenue |  |  |  |
Sales to external customers | $ 322.0 | $ 289.5 | $ 610.5 | $ 591.4
Point in time |  |  |  |
Disaggregation of Revenue |  |  |  |
Sales to external customers | 204.7 | 160.3 | 394.7 | 322.5
Over time |  |  |  |
Disaggregation of Revenue |  |  |  |
Sales to external customers | 117.3 | 129.2 | 215.8 | 268.9
Operating Segments | Cryo Tank Solutions |  |  |  |
Disaggregation of Revenue |  |  |  |
Sales to external customers | 97.8 | 105.3 | 201.7 | 203.3
Operating Segments | Cryo Tank Solutions | Point in time |  |  |  |
Disaggregation of Revenue |  |  |  |
Sales to external customers | 89.8 | 94.4 | 188.5 | 184.2
Operating Segments | Cryo Tank Solutions | Over time |  |  |  |
Disaggregation of Revenue |  |  |  |
Sales to external customers | 8.0 | 10.9 | 13.2 | 19.1
Operating Segments | Heat Transfer Systems |  |  |  |
Disaggregation of Revenue |  |  |  |
Sales to external customers | 65.2 | 97.3 | 134.4 | 210.2
Operating Segments | Heat Transfer Systems | Point in time |  |  |  |
Disaggregation of Revenue |  |  |  |
Sales to external customers | 5.2 | 8.1 | 10.8 | 15.2
Operating Segments | Heat Transfer Systems | Over time |  |  |  |
Disaggregation of Revenue |  |  |  |
Sales to external customers | 60.0 | 89.2 | 123.6 | 195.0
Operating Segments | Specialty Products |  |  |  |
Disaggregation of Revenue |  |  |  |
Sales to external customers | 106.8 | 48.6 | 184.1 | 101.5
Operating Segments | Specialty Products | Point in time |  |  |  |
Disaggregation of Revenue |  |  |  |
Sales to external customers | 73.4 | 32.6 | 135.3 | 71.4
Operating Segments | Specialty Products | Over time |  |  |  |
Disaggregation of Revenue |  |  |  |
Sales to external customers | 33.4 | 16.0 | 48.8 | 30.1
Operating Segments | Repair, Service & Leasing |  |  |  |
Disaggregation of Revenue |  |  |  |
Sales to external customers | 54.6 | 40.1 | 96.0 | 80.8
Operating Segments | Repair, Service & Leasing | Point in time |  |  |  |
Disaggregation of Revenue |  |  |  |
Sales to external customers | 37.8 | 25.9 | 64.5 | 53.9
Operating Segments | Repair, Service & Leasing | Over time |  |  |  |
Disaggregation of Revenue |  |  |  |
Sales to external customers | 16.8 | 14.2 | 31.5 | 26.9
Intersegment Eliminations |  |  |  |
Disaggregation of Revenue |  |  |  |
Sales to external customers | (2.4) | (1.8) | (5.7) | (4.4)
Intersegment Eliminations | Point in time |  |  |  |
Disaggregation of Revenue |  |  |  |
Sales to external customers | (1.5) | (0.7) | (4.4) | (2.2)
Intersegment Eliminations | Over time |  |  |  |
Disaggregation of Revenue |  |  |  |
Sales to external customers | $ (0.9) | $ (1.1) | $ (1.3) | $ (2.2)

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