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Goodwill and Intangible Assets (Tables) | 9 Months Ended
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Dec. 31, 2024
Goodwill and Intangible Assets |
Changes in Carrying value of Goodwill | ​
​ | ​ | ​ | ​
​ |  | Climate Solutions
Goodwill, March 31, 2024 | ​ | $ | 230.9
Acquisition adjustment | ​ |  | 7.4
Effect of exchange rate changes | ​ |  | (5.7)
Goodwill, December 31, 2024 | ​ | $ | 232.6
Intangible Assets | Intangible assets consisted of the following: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2024 | ​ | March 31, 2024
​ |  | Gross |  | ​ | ​ |  | Net |  | Gross |  |  | ​ |  | Net
​ | ​ | Carrying | ​ | Accumulated | ​ | Intangible | ​ | Carrying | ​ | Accumulated | ​ | Intangible
​ | ​ | Value | ​ | Amortization | ​ | Assets | ​ | Value | ​ | Amortization | ​ | Assets
Customer relationships | ​ | $ | 144.3 | ​ | $ | (41.7) | ​ | $ | 102.6 | ​ | $ | 150.5 | ​ | $ | (26.3) | ​ | $ | 124.2
Trade names | ​ |  | 52.5 | ​ |  | (20.3) | ​ |  | 32.2 | ​ |  | 62.8 | ​ |  | (18.5) | ​ |  | 44.3
Acquired technology | ​ |  | 32.1 | ​ |  | (14.6) | ​ |  | 17.5 | ​ |  | 32.5 | ​ |  | (12.7) | ​ |  | 19.8
Total intangible assets | ​ | $ | 228.9 | ​ | $ | (76.6) | ​ | $ | 152.3 | ​ | $ | 245.8 | ​ | $ | (57.5) | ​ | $ | 188.3

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