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Investments, at Fair Value - Amortized Cost vs Fair Value (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Mar. 31, 2025
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Amortized Cost Basis	$ 1,687	$ 2,685
Gross Unrealized Gains	90	0
Gross Unrealized Losses	0	(998)
Fair Value	1,777	1,687
Other debt securities
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Amortized Cost Basis	1,687	2,685
Gross Unrealized Gains	90	0
Gross Unrealized Losses	0	(998)
Fair Value	$ 1,777	$ 1,687

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Amount, before tax, of unrealized gain 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).

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