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RESTRUCTURING, IMPAIRMENT AND OTHER CHARGES - Schedule of Gains, Losses and Other Items (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023 | Mar. 31, 2024 | Mar. 31, 2023
Restructuring and Related Activities [Abstract] |  |  |  |  |  |
Employee-related restructuring plan charges | $ 397 | $ 1,383 | $ 575 | $ 1,471 |  |
Lease-related restructuring plan charges and adjustments | 0 | 398 | 0 | 398 |  |
ROU asset group impairments and adjustments | 0 | 1,918 | 0 | 1,946 | $ 26,500 | $ 26,500
Goodwill impairment | 0 | 2,875 | 0 | 2,875 |  |
Other | 0 | 0 | 28 | 0 |  |
Gains, losses and other items, net | $ 397 | $ 6,574 | $ 603 | $ 6,690 |  |

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