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LOANS RECEIVABLE - Amortized Cost of Loans to Borrowers, Modified (Details) - Commercial - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Mar. 31, 2026 | Mar. 31, 2025 | Mar. 31, 2026 | Mar. 31, 2025
Financing Receivable Modifications [Line Items] |  |  |  |
Financing receivable, modified in period | $ 24,678 | $ 7,181 | $ 27,807 | $ 34,004
Payment Delay |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Financing receivable, modified in period | 0 | 7,181 | 3,129 | 31,398
Term Extension |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Financing receivable, modified in period | 0 | 0 | 0 | 0
Payment Delay, Term Extension, and Interest Rate Reductions |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Financing receivable, modified in period | 24,678 | 0 | 24,678 | 2,606
Multi-family mortgage |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Financing receivable, modified in period | $ 24,678 | $ 7,137 | $ 27,091 | $ 33,787
Financing receivable, percent of total class | 0.97% | 0.26% | 1.06% | 1.24%
Multi-family mortgage | Payment Delay |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Financing receivable, modified in period | $ 0 | $ 7,137 | $ 2,413 | $ 31,181
Multi-family mortgage | Term Extension |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Financing receivable, modified in period | 0 | 0 | 0 | 0
Multi-family mortgage | Payment Delay, Term Extension, and Interest Rate Reductions |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Financing receivable, modified in period | $ 24,678 | 0 | 24,678 | 2,606
Nonresidential mortgage |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Financing receivable, modified in period |  |  |  | $ 173
Financing receivable, percent of total class |  |  |  | 0.02%
Nonresidential mortgage | Payment Delay |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Financing receivable, modified in period |  |  |  | $ 173
Nonresidential mortgage | Term Extension |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Financing receivable, modified in period |  |  |  | 0
Nonresidential mortgage | Payment Delay, Term Extension, and Interest Rate Reductions |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Financing receivable, modified in period |  |  |  | 0
Commercial business |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Financing receivable, modified in period |  | $ 44 | $ 716 | $ 44
Financing receivable, percent of total class |  | 0.03% | 0.36% | 0.03%
Commercial business | Payment Delay |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Financing receivable, modified in period |  | $ 44 | $ 716 | $ 44
Commercial business | Term Extension |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Financing receivable, modified in period |  | 0 | 0 | 0
Commercial business | Payment Delay, Term Extension, and Interest Rate Reductions |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Financing receivable, modified in period |  | $ 0 | $ 0 | $ 0

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