FAIR VALUE MEASUREMENTS - Narrative (Details) - USD ($) $ in Thousands |
12 Months Ended | |
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Mar. 31, 2026 |
Mar. 31, 2025 |
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| Debt Instrument [Line Items] | ||
| Investment income, interest | $ 13,900 | |
| Restricted investments | 605,396 | $ 0 |
| Senior Notes | ||
| Debt Instrument [Line Items] | ||
| Long-term debt, fair value | 1,002,600 | $ 583,900 |
| Reported Value Measurement | ||
| Debt Instrument [Line Items] | ||
| Restricted investments, at fair value | $ 10,800 |
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The aggregate value of all restricted investments. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition This element represents the current portion of investments which are not defined as or included in marketable (debt, equity, or other) securities that are pledged or subject to withdrawal restrictions. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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