Fair Value of Financial Assets and Liabilities - Schedule of Adverse Changes in the Fair Value of Risk Sharing Assets and Liabilities (Details) - USD ($) $ in Thousands |
Dec. 31, 2025 |
Jun. 30, 2025 |
|---|---|---|
| Risk Sharing Arrangement | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Loss rate increase of 25% | $ 5,384 | $ 16,946 |
| Loss rate increase of 50% | 10,534 | 24,676 |
| Discount rate increase of 25% | 0 | 0 |
| Discount rate increase of 50% | 0 | 0 |
| Risk Sharing Arrangement | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Prepayment rate decrease of 25% | (1,813) | (1,896) |
| Prepayment rate decrease of 50% | (3,751) | (3,923) |
| Loss rate increase of 25% | (14,821) | (15,150) |
| Loss rate increase of 50% | (29,640) | (30,277) |
| Discount rate increase of 25% | (583) | (903) |
| Discount rate increase of 50% | $ (1,130) | $ (1,745) |