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Segment and Geographic Information, Capital Expenditures and Depreciation and Amortization Expense by Segment (Details) - USD ($) $ in Millions | 12 Months Ended
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Mar. 31, 2024 | Mar. 31, 2023 | Mar. 31, 2022
Segment and Geographic Information [Abstract] |  |  |  |
Capital expenditures | $ 87.7 |  | $ 50.7 | $ 40.3
Depreciation and amortization | 56.1 |  | 54.5 | 54.8
Operating Segments [Member] | Climate Solutions [Member] |  |  |  |
Segment and Geographic Information [Abstract] |  |  |  |
Capital expenditures | 50.6 | [1] | 24.2 | 9.9
Depreciation and amortization | 23.5 |  | 21.7 | 23.6
Operating Segments [Member] | Performance Technologies [Member] |  |  |  |
Segment and Geographic Information [Abstract] |  |  |  |
Capital expenditures | 36.4 |  | 25.2 | 29.2
Depreciation and amortization | 31.7 |  | 31.8 | 29.9
Corporate [Member] |  |  |  |
Segment and Geographic Information [Abstract] |  |  |  |
Capital expenditures | 0.7 |  | 1.3 | 1.2
Depreciation and amortization | $ 0.9 |  | $ 1.0 | $ 1.3
[1] | In March 2024, the Company purchased a manufacturing site in the U.K. for $13.4 million in order to expand its production capacity for data center cooling products.

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