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LOANS RECEIVABLE - Performance Status of Loans Receivable (Details) - USD ($) $ in Thousands | Mar. 31, 2025 | Jun. 30, 2024
--- | --- | ---
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, before allowance for credit loss, fee and loan in process | $ 5,850,449 | $ 5,748,750
Commercial |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, before allowance for credit loss, fee and loan in process | 4,036,426 | 3,945,910
Residential |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, before allowance for credit loss, fee and loan in process | 1,761,465 | 1,756,051
Consumer |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, before allowance for credit loss, fee and loan in process | 52,558 | 46,789
Nonperforming |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
90 Days and Over Past Due Accruing | 0 | 0
Nonaccrual Loans with Allowance for Credit Losses | 2,562 | 8,704
Nonaccrual Loans with no Allowance for Credit Losses | 35,121 | 31,178
Financing receivable, before allowance for credit loss, fee and loan in process | 37,683 | 39,882
Nonperforming | Residential |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
90 Days and Over Past Due Accruing | 0 | 0
Nonaccrual Loans with Allowance for Credit Losses | 801 | 2,295
Nonaccrual Loans with no Allowance for Credit Losses | 4,375 | 4,410
Financing receivable, before allowance for credit loss, fee and loan in process | 5,176 | 6,705
Performing |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, before allowance for credit loss, fee and loan in process | 5,812,766 | 5,708,868
Performing | Residential |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, before allowance for credit loss, fee and loan in process | 1,756,289 | 1,749,346
Multi-family mortgage | Commercial |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, before allowance for credit loss, fee and loan in process | 2,733,406 | 2,645,851
Multi-family mortgage | Nonperforming | Commercial |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
90 Days and Over Past Due Accruing | 0 | 0
Nonaccrual Loans with Allowance for Credit Losses | 1,245 | 0
Nonaccrual Loans with no Allowance for Credit Losses | 23,542 | 22,591
Financing receivable, before allowance for credit loss, fee and loan in process | 24,787 | 22,591
Multi-family mortgage | Performing | Commercial |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, before allowance for credit loss, fee and loan in process | 2,708,619 | 2,623,260
Nonresidential mortgage | Commercial |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, before allowance for credit loss, fee and loan in process | 988,074 | 948,075
Nonresidential mortgage | Nonperforming | Commercial |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
90 Days and Over Past Due Accruing | 0 | 0
Nonaccrual Loans with Allowance for Credit Losses | 0 | 5,695
Nonaccrual Loans with no Allowance for Credit Losses | 5,793 | 4,128
Financing receivable, before allowance for credit loss, fee and loan in process | 5,793 | 9,823
Nonresidential mortgage | Performing | Commercial |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, before allowance for credit loss, fee and loan in process | 982,281 | 938,252
Commercial business | Commercial |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, before allowance for credit loss, fee and loan in process | 140,224 | 142,747
Commercial business | Nonperforming | Commercial |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
90 Days and Over Past Due Accruing | 0 | 0
Nonaccrual Loans with Allowance for Credit Losses | 516 | 714
Nonaccrual Loans with no Allowance for Credit Losses | 1,283 | 0
Financing receivable, before allowance for credit loss, fee and loan in process | 1,799 | 714
Commercial business | Performing | Commercial |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, before allowance for credit loss, fee and loan in process | 138,425 | 142,033
Construction | Commercial |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, before allowance for credit loss, fee and loan in process | 174,722 | 209,237
Construction | Nonperforming | Commercial |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
90 Days and Over Past Due Accruing | 0 | 0
Nonaccrual Loans with Allowance for Credit Losses | 0 | 0
Nonaccrual Loans with no Allowance for Credit Losses | 0 | 0
Financing receivable, before allowance for credit loss, fee and loan in process | 0 | 0
Construction | Performing | Commercial |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, before allowance for credit loss, fee and loan in process | 174,722 | 209,237
Home equity loans | Consumer |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, before allowance for credit loss, fee and loan in process | 49,699 | 44,104
Home equity loans | Nonperforming | Consumer |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
90 Days and Over Past Due Accruing | 0 | 0
Nonaccrual Loans with Allowance for Credit Losses | 0 | 0
Nonaccrual Loans with no Allowance for Credit Losses | 125 | 44
Financing receivable, before allowance for credit loss, fee and loan in process | 125 | 44
Home equity loans | Performing | Consumer |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, before allowance for credit loss, fee and loan in process | 49,574 | 44,060
Other consumer | Consumer |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, before allowance for credit loss, fee and loan in process | 2,859 | 2,685
Other consumer | Nonperforming | Consumer |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
90 Days and Over Past Due Accruing | 0 | 0
Nonaccrual Loans with Allowance for Credit Losses | 0 | 0
Nonaccrual Loans with no Allowance for Credit Losses | 3 | 5
Financing receivable, before allowance for credit loss, fee and loan in process | 3 | 5
Other consumer | Performing | Consumer |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, before allowance for credit loss, fee and loan in process | $ 2,856 | $ 2,680

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