Fair Value of Financial Assets and Liabilities - Schedule of Adverse Changes in Estimates for Securitization Notes and Residual Trust Certificates (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Jun. 30, 2025
Discount Rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securitization notes and residual trust certificates, effect of 25% increase (decrease) in measurement input	$ (518)	$ (727)
Securitization notes and residual trust certificates, effect of 50% increase (decrease) in measurement input	(1,013)	(1,427)
Default Rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securitization notes and residual trust certificates, effect of 25% increase (decrease) in measurement input	(2,806)	(2,688)
Securitization notes and residual trust certificates, effect of 50% increase (decrease) in measurement input	(3,526)	(3,698)
Prepayment Rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securitization notes and residual trust certificates, change of 25%	(155)	(130)
Securitization notes and residual trust certificates, change of 50%	$ (313)	$ (259)

- 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.

+ References + Details