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Goodwill and Intangible Assets - Goodwill Rollforward (Details) $ in Millions |  |  |  | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | ---
Oct. 01, 2020 USD ($) segment | Sep. 30, 2020 USD ($) | Jul. 01, 2019 segment | Dec. 31, 2020 USD ($) | Sep. 30, 2020 USD ($) | Dec. 31, 2020 USD ($) segment | Dec. 31, 2019 USD ($) segment
Goodwill |  |  |  |  |  |  |
Beginning balance, goodwill | $ 817.6 |  |  | $ 817.6 | $ 811.4 | $ 811.4 | $ 487.2
Foreign currency translation adjustments and other |  |  |  | 9.5 | 5.8 |  |
Goodwill acquired during the period |  |  |  | 38.8 |  |  | 287.5
Purchase price adjustments |  |  |  |  | 0.4 |  | 38.4
Ending balance, goodwill | 817.6 | $ 817.6 |  | 865.9 | 817.6 | 865.9 | 811.4
Goodwill Impaired |  |  |  |  |  |  |
Beginning Balance, accumulated goodwill impairment loss | $ 129.0 |  |  | 129.0 | 129.0 | 129.0 | 129.0
Ending Balance, accumulated goodwill impairment loss |  | 129.0 |  | 129.0 | 129.0 | $ 129.0 | $ 129.0
Number of reportable segments (segment) | segment | 4 |  |  |  |  | 4 | 4
Adjustment |  |  |  |  |  |  |
Goodwill Impaired |  |  |  |  |  |  |
Number of reportable segments (segment) | segment |  |  | 2 |  |  |  |
D&S East |  |  |  |  |  |  |
Goodwill |  |  |  |  |  |  |
Beginning balance, goodwill | $ 121.5 |  |  | 121.5 | 117.0 | $ 117.0 | $ 73.6
Goodwill, transfers |  | (121.5) |  |  |  |  |
Foreign currency translation adjustments and other |  |  |  | 0.0 | 4.5 |  | (0.9)
Goodwill acquired during the period |  |  |  | 0.0 |  |  | 0.0
Purchase price adjustments |  |  |  |  | 0.0 |  | 44.3
Ending balance, goodwill | 0.0 | 121.5 |  | 0.0 | 121.5 | 0.0 | 117.0
Goodwill Impaired |  |  |  |  |  |  |
Beginning Balance, accumulated goodwill impairment loss | 0.0 |  |  | 0.0 | 0.0 | 0.0 | 0.0
Ending Balance, accumulated goodwill impairment loss |  | 0.0 |  | 0.0 | 0.0 | 0.0 | 0.0
D&S West |  |  |  |  |  |  |
Goodwill |  |  |  |  |  |  |
Beginning balance, goodwill | 118.6 |  |  | 118.6 | 118.6 | 118.6 | 117.8
Goodwill, transfers |  | (118.6) |  |  |  |  |
Foreign currency translation adjustments and other |  |  |  | 0.0 |  |  | 0.0
Goodwill acquired during the period |  |  |  | 0.0 |  |  | 0.0
Purchase price adjustments |  |  |  |  |  |  | 0.8
Ending balance, goodwill | 0.0 | 118.6 |  | 0.0 | 118.6 | 0.0 | 118.6
Goodwill Impaired |  |  |  |  |  |  |
Beginning Balance, accumulated goodwill impairment loss | 64.4 |  |  | 64.4 | 64.4 | 64.4 | 64.4
Goodwill Impaired Reallocation Amount |  |  |  | (64.4) |  |  |
Ending Balance, accumulated goodwill impairment loss |  | 64.4 |  | 0.0 | 64.4 | 0.0 | 64.4
E&C |  |  |  |  |  |  |
Goodwill |  |  |  |  |  |  |
Beginning balance, goodwill |  |  |  |  | 0.0 | 0.0 | 295.8
Goodwill, transfers |  |  |  |  |  |  | (295.8)
Foreign currency translation adjustments and other |  |  |  |  |  |  | 0.0
Goodwill acquired during the period |  |  |  |  |  |  | 0.0
Purchase price adjustments |  |  |  |  |  |  | 0.0
Ending balance, goodwill |  |  |  |  |  |  | 0.0
Goodwill Impaired |  |  |  |  |  |  |
Beginning Balance, accumulated goodwill impairment loss |  |  |  |  | 0.0 | 0.0 | 64.6
Ending Balance, accumulated goodwill impairment loss |  |  |  |  |  |  | 0.0
E&C Cryogenics |  |  |  |  |  |  |
Goodwill |  |  |  |  |  |  |
Beginning balance, goodwill | 176.2 |  |  | 176.2 | 176.2 | 176.2 | 0.0
Goodwill, transfers |  | (176.2) |  |  |  |  | 183.5
Foreign currency translation adjustments and other |  |  |  | 0.0 |  |  | (0.6)
Goodwill acquired during the period |  |  |  | 0.0 |  |  | 0.0
Purchase price adjustments |  |  |  |  |  |  | (6.7)
Ending balance, goodwill | 0.0 | 176.2 |  | 0.0 | 176.2 | 0.0 | 176.2
Goodwill Impaired |  |  |  |  |  |  |
Beginning Balance, accumulated goodwill impairment loss | 40.9 |  |  | 40.9 | 40.9 | 40.9 | 0.0
Goodwill Impaired Reallocation Amount |  |  |  | (40.9) |  |  |
Ending Balance, accumulated goodwill impairment loss |  | 40.9 |  | 0.0 | 40.9 | 0.0 | 40.9
E&C FinFans |  |  |  |  |  |  |
Goodwill |  |  |  |  |  |  |
Beginning balance, goodwill | 401.3 |  |  | 401.3 | 399.6 | 399.6 | 0.0
Goodwill, transfers |  | (401.3) |  |  |  |  | 112.3
Foreign currency translation adjustments and other |  |  |  | 0.0 | 1.3 |  | (0.2)
Goodwill acquired during the period |  |  |  | 0.0 |  |  | 287.5
Purchase price adjustments |  |  |  |  | 0.4 |  | 0.0
Ending balance, goodwill | 0.0 | 401.3 |  | 0.0 | 401.3 | 0.0 | 399.6
Goodwill Impaired |  |  |  |  |  |  |
Beginning Balance, accumulated goodwill impairment loss | 23.7 |  |  | 23.7 | 23.7 | 23.7 | 0.0
Goodwill Impaired Reallocation Amount |  |  |  | (23.7) |  |  |
Ending Balance, accumulated goodwill impairment loss |  | 23.7 |  | 0.0 | 23.7 | 0.0 | 23.7
Cryo Tank Solutions |  |  |  |  |  |  |
Goodwill |  |  |  |  |  |  |
Beginning balance, goodwill | 0.0 |  |  | 0.0 | 0.0 | 0.0 |
Foreign currency translation adjustments and other |  |  |  | 6.7 |  |  |
Goodwill acquired during the period |  |  |  | 0.0 |  |  |
Ending balance, goodwill | 86.5 | 0.0 |  | 93.2 | 0.0 | 93.2 | 0.0
Goodwill Impaired |  |  |  |  |  |  |
Beginning Balance, accumulated goodwill impairment loss | 0.0 |  |  | 0.0 | 0.0 | 0.0 |
Ending Balance, accumulated goodwill impairment loss |  | 0.0 |  | 23.5 | 0.0 | 23.5 | 0.0
Cryo Tank Solutions | D&S East |  |  |  |  |  |  |
Goodwill |  |  |  |  |  |  |
Goodwill, transfers |  | 43.3 |  |  |  |  |
Cryo Tank Solutions | D&S West |  |  |  |  |  |  |
Goodwill |  |  |  |  |  |  |
Goodwill, transfers |  | 43.2 |  |  |  |  |
Goodwill Impaired |  |  |  |  |  |  |
Goodwill Impaired Reallocation Amount |  |  |  | 23.5 |  |  |
Heat Transfer Systems |  |  |  |  |  |  |
Goodwill |  |  |  |  |  |  |
Beginning balance, goodwill | 0.0 |  |  | 0.0 | 0.0 | 0.0 |
Foreign currency translation adjustments and other |  |  |  | 2.6 |  |  |
Goodwill acquired during the period |  |  |  | 0.0 |  |  |
Ending balance, goodwill | 432.6 | 0.0 |  | 435.2 | 0.0 | 435.2 | 0.0
Goodwill Impaired |  |  |  |  |  |  |
Beginning Balance, accumulated goodwill impairment loss | 0.0 |  |  | 0.0 | 0.0 | 0.0 |
Ending Balance, accumulated goodwill impairment loss |  | 0.0 |  | 49.3 | 0.0 | 49.3 | 0.0
Heat Transfer Systems | Cryo Tank Solutions |  |  |  |  |  |  |
Goodwill Impaired |  |  |  |  |  |  |
Goodwill Impaired Reallocation Amount |  |  |  | 31.8 |  |  |
Heat Transfer Systems | E&C Cryogenics |  |  |  |  |  |  |
Goodwill |  |  |  |  |  |  |
Goodwill, transfers |  | 137.0 |  |  |  |  |
Heat Transfer Systems | E&C FinFans |  |  |  |  |  |  |
Goodwill |  |  |  |  |  |  |
Goodwill, transfers |  | 295.6 |  |  |  |  |
Goodwill Impaired |  |  |  |  |  |  |
Goodwill Impaired Reallocation Amount |  |  |  | 17.5 |  |  |
Specialty Products |  |  |  |  |  |  |
Goodwill |  |  |  |  |  |  |
Beginning balance, goodwill | 0.0 |  |  | 0.0 | 0.0 | 0.0 |
Foreign currency translation adjustments and other |  |  |  | (0.2) |  |  |
Goodwill acquired during the period |  |  |  | 38.8 |  |  |
Ending balance, goodwill | 133.8 | 0.0 |  | 172.4 | 0.0 | 172.4 | 0.0
Goodwill Impaired |  |  |  |  |  |  |
Beginning Balance, accumulated goodwill impairment loss | 0.0 |  |  | 0.0 | 0.0 | 0.0 |
Ending Balance, accumulated goodwill impairment loss |  | 0.0 |  | 35.8 | 0.0 | 35.8 | 0.0
Specialty Products | D&S East |  |  |  |  |  |  |
Goodwill |  |  |  |  |  |  |
Goodwill, transfers |  | 64.6 |  |  |  |  |
Specialty Products | D&S West |  |  |  |  |  |  |
Goodwill |  |  |  |  |  |  |
Goodwill, transfers |  | 63.6 |  |  |  |  |
Goodwill Impaired |  |  |  |  |  |  |
Goodwill Impaired Reallocation Amount |  |  |  | 34.5 |  |  |
Specialty Products | E&C Cryogenics |  |  |  |  |  |  |
Goodwill |  |  |  |  |  |  |
Goodwill, transfers |  | 5.6 |  |  |  |  |
Goodwill Impaired |  |  |  |  |  |  |
Goodwill Impaired Reallocation Amount |  |  |  | 1.3 |  |  |
Repair, Service & Leasing |  |  |  |  |  |  |
Goodwill |  |  |  |  |  |  |
Beginning balance, goodwill | 0.0 |  |  | 0.0 | 0.0 | 0.0 |
Foreign currency translation adjustments and other |  |  |  | 0.4 |  |  | (1.7)
Goodwill acquired during the period |  |  |  | 0.0 |  |  |
Ending balance, goodwill | 164.7 | 0.0 |  | 165.1 | 0.0 | 165.1 | 0.0
Goodwill Impaired |  |  |  |  |  |  |
Beginning Balance, accumulated goodwill impairment loss | $ 0.0 |  |  | 0.0 | 0.0 | 0.0 |
Ending Balance, accumulated goodwill impairment loss |  | 0.0 |  | 20.4 | $ 0.0 | $ 20.4 | $ 0.0
Repair, Service & Leasing | D&S East |  |  |  |  |  |  |
Goodwill |  |  |  |  |  |  |
Goodwill, transfers |  | 13.6 |  |  |  |  |
Repair, Service & Leasing | D&S West |  |  |  |  |  |  |
Goodwill |  |  |  |  |  |  |
Goodwill, transfers |  | 11.8 |  |  |  |  |
Goodwill Impaired |  |  |  |  |  |  |
Goodwill Impaired Reallocation Amount |  |  |  | 6.4 |  |  |
Repair, Service & Leasing | E&C Cryogenics |  |  |  |  |  |  |
Goodwill |  |  |  |  |  |  |
Goodwill, transfers |  | 33.6 |  |  |  |  |
Goodwill Impaired |  |  |  |  |  |  |
Goodwill Impaired Reallocation Amount |  |  |  | 7.8 |  |  |
Repair, Service & Leasing | E&C FinFans |  |  |  |  |  |  |
Goodwill |  |  |  |  |  |  |
Goodwill, transfers |  | $ 105.7 |  |  |  |  |
Goodwill Impaired |  |  |  |  |  |  |
Goodwill Impaired Reallocation Amount |  |  |  | $ 6.2 |  |  |

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