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v3.25.1

Goodwill (Details) $ in Millions | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2023 facility | Jun. 30, 2024 USD ($) | Mar. 31, 2025 USD ($) | Mar. 31, 2024 USD ($)
Goodwill [Roll Forward] |  |  |  |
Beginning balance |  | $ 230.9 | $ 230.9 |
Ending balance |  |  | 233.9 | $ 230.9
Number of coatings facilities sold | facility | 2 |  |  |
Climate Solutions |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Beginning balance |  | 230.9 | 230.9 | 165.6
Acquisitions |  |  |  | 66.2
Dispositions |  |  |  | (0.7)
Acquisition adjustment |  |  | 7.4 |
Effect of exchange rate changes |  |  | (4.4) | (0.2)
Ending balance |  |  | 233.9 | 230.9
Performance Technologies |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Dispositions |  |  |  | (0.7)
Accumulated impairment losses |  |  | 40.8 | 40.8
Scott Springfield Manufacturing |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Beginning balance |  | 65.2 | 65.2 |
Acquisition adjustment |  | $ 7.4 |  |
Ending balance |  |  |  | 65.2
Scott Springfield Manufacturing | Climate Solutions |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Acquisitions |  |  |  | 65.2
Acquisition adjustment |  |  | $ 7.4 |
Napps | Climate Solutions |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Acquisitions |  |  |  | $ 1.0

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