Borrowings - Schedule of Borrowings (Details) - USD ($) $ in Thousands |
Jun. 30, 2025 |
Jun. 30, 2024 |
|---|---|---|
| Short-term Debt [Line Items] | ||
| Borrowings | $ 1,256,491 | $ 1,709,789 |
| Total fixed-rate advances | ||
| Short-term Debt [Line Items] | ||
| Borrowings | 1,106,491 | 1,534,789 |
| FHLB advances | ||
| Short-term Debt [Line Items] | ||
| Borrowings | 1,106,491 | 1,434,789 |
| Federal Reserve Bank Term Funding Program ("BTFP") | ||
| Short-term Debt [Line Items] | ||
| Borrowings | 0 | 100,000 |
| Overnight borrowings | ||
| Short-term Debt [Line Items] | ||
| Borrowings | $ 150,000 | $ 175,000 |