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BORROWINGS - Schedule of Borrowings (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Jun. 30, 2025
Debt Instrument [Line Items]
Borrowings	$ 1,206,497	$ 1,256,491
Overnight borrowings
Debt Instrument [Line Items]
Borrowings	200,000	150,000
FHLB advances
Debt Instrument [Line Items]
Borrowings	1,006,497	1,106,491
Line of Credit | Overnight borrowings | FHLB Overnight Line of Credit Borrowings
Debt Instrument [Line Items]
Borrowings	200,000	150,000
Total Fixed-Rate Advances
Debt Instrument [Line Items]
Borrowings	$ 1,006,497	$ 1,106,491

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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.

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