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Investments, at Fair Value - Continuous Loss Position (Details) - USD ($) $ in Thousands | Jun. 30, 2025 | Mar. 31, 2025
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Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Fair Value, Total available-for-sale debt securities with unrealized losses | $ 1,687 | $ 1,687
Unrealized Losses, Total available-for-sale debt securities with unrealized losses | 998 | 998
Other debt securities |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Fair Value, Less than twelve months | 0 | 0
Fair Value, Twelve months or longer | 1,687 | 1,687
Unrealized Losses, Less than twelve months | 0 | 0
Unrealized Losses, Twelve months or longer | $ 998 | $ 998

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