Investments - Narrative (Details) - USD ($) |
Jun. 30, 2024 |
Mar. 31, 2024 |
|---|---|---|
| Investments, Debt and Equity Securities [Abstract] | ||
| Accrued interest | $ 4,500,000 | $ 3,800,000 |
| Debt securities, gross unrealized losses | 1,481,000 | 3,698,000 |
| Impairment on debt securities | 0 | 0 |
| Debt securities credit losses | 0 | 0 |
| Debt securities, available-for-sale, unrealized loss position | $ 486,829,000 | $ 547,490,000 |
| X | ||||||||||
- Definition Debt Securities, Available-for-Sale, Impairment Loss No definition available.
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| X | ||||||||||
- Definition Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount, after allowance for credit loss, of accrued interest on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount excluding accrued interest, of allowance for credit loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position without allowance for credit loss. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- References No definition available.
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