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Fair Value Measurements (Tables) | 6 Months Ended
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Sep. 30, 2025
Fair Value Disclosures [Abstract] |
Schedule of Carrying Values and Estimated Fair Values of Debt Instruments | The summary below details the carrying amounts and estimated fair values of these instruments at September 30, 2025 and March 31, 2025.
|  | September 30, 2025 |  | March 31, 2025
(In thousands) |  | Carrying Value |  | Fair Value |  | Carrying Value |  | Fair Value
2019 Senior Notes |  | 400,000 |  |  | 397,000 |  |  | 400,000 |  |  | 392,000 |
2021 Senior Notes |  | 600,000 |  |  | 553,500 |  |  | 600,000 |  |  | 537,750 |

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- Definition Tabular disclosure of information pertaining to carrying amount and estimated fair value of short-term and long-term debt instruments or arrangements, including but not limited to, identification of terms, features, and collateral requirements. + References No definition available. + Details
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