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v3.25.0.1

Goodwill (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Sep. 30, 2023 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Goodwill |  |  |  |
Beginning Balance |  | $ 222.1 | $ 186.3 |
Goodwill, Transfers |  |  | 0.0 |
Goodwill, Written off Related to Sale of Business Unit |  | (4.6) | (4.6) |
Goodwill, Acquired During Period |  |  | 40.4 |
Goodwill, adjustment |  | (2.1) |  |
Ending Balance |  | 220.0 | 222.1 |
Goodwill, accumulated impairment losses |  |  |  | $ 32.7
AES |  |  |  |
Goodwill |  |  |  |
Beginning Balance |  | 40.4 |  |
Goodwill, adjustment |  | (2.1) |  |
Ending Balance |  | 38.3 | 40.4 |
Discontinued Operations, Disposed of by Sale [Member] | European Commercial HVAC and Refrigeration Operations |  |  |  |
Goodwill |  |  |  |
Impairment of Long-Lived Assets to be Disposed of, Goodwill | $ 2.3 |  |  |
Segment Reporting, Reconciling Item, Corporate Nonsegment |  |  |  |
Goodwill |  |  |  |
Beginning Balance |  | 0.0 | 0.0 |
Goodwill, Transfers |  |  | 4.6 |
Goodwill, Written off Related to Sale of Business Unit |  |  | (4.6) |
Goodwill, Acquired During Period |  |  | 0.0 |
Goodwill, adjustment |  |  |  |
Ending Balance |  | 0.0 | 0.0 |
Residential Heating & Cooling [Member] | Operating Segments |  |  |  |
Goodwill |  |  |  |
Beginning Balance |  | 26.1 | 26.1 |
Goodwill, Transfers |  |  | 0.0 |
Goodwill, Written off Related to Sale of Business Unit |  |  | 0.0 |
Goodwill, Acquired During Period |  |  | 0.0 |
Goodwill, adjustment |  | 0.0 |  |
Ending Balance |  | 26.1 | 26.1 |
Commercial Heating & Cooling [Member] | Operating Segments |  |  |  |
Goodwill |  |  |  |
Beginning Balance |  | 196.0 | 61.1 |
Goodwill, Transfers |  |  | 94.5 |
Goodwill, Written off Related to Sale of Business Unit |  |  | 0.0 |
Goodwill, Acquired During Period |  |  | 40.4 |
Goodwill, adjustment |  | (2.1) |  |
Ending Balance |  | 193.9 | 196.0 |
Refrigeration [Member] | Operating Segments |  |  |  |
Goodwill |  |  |  |
Beginning Balance |  | 0.0 | 99.1 |
Goodwill, Transfers |  |  | (99.1) |
Goodwill, Written off Related to Sale of Business Unit |  |  | 0.0 |
Goodwill, Acquired During Period |  |  | 0.0 |
Goodwill, adjustment |  | 0.0 |  |
Ending Balance |  | $ 0.0 | $ 0.0 |

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