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Variable Interest Entities - Narrative (Details) - USD ($)	Jun. 30, 2025	Mar. 31, 2025
Variable Interest Entity [Line Items]
Total assets	$ 334,506,000	$ 354,875,000
Variable Interest Entity, Primary Beneficiary | CT Risk Management, L.L.C.
Variable Interest Entity [Line Items]
Total assets	$ 0	$ 0

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