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LOANS RECEIVABLE - Performance Status of Loans Receivable (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Jun. 30, 2023
--- | --- | ---
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, before allowance for credit loss, fee and loan in process | $ 5,775,090 | $ 5,850,476
Commercial |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, before allowance for credit loss, fee and loan in process | 3,987,517 | 4,103,819
Residential |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, before allowance for credit loss, fee and loan in process | 1,741,644 | 1,700,559
Consumer |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, before allowance for credit loss, fee and loan in process | 45,929 | 46,098
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 | 4,284 | 19,212
Nonaccrual Loans with no Allowance for Credit Losses | 35,262 | 23,415
Financing receivable, before allowance for credit loss, fee and loan in process | 39,546 | 42,627
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 | 1,379 | 1,640
Nonaccrual Loans with no Allowance for Credit Losses | 4,263 | 5,031
Financing receivable, before allowance for credit loss, fee and loan in process | 5,642 | 6,671
Performing |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, before allowance for credit loss, fee and loan in process | 5,735,544 | 5,807,849
Performing | Residential |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, before allowance for credit loss, fee and loan in process | 1,736,002 | 1,693,888
Multi-family mortgage | Commercial |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, before allowance for credit loss, fee and loan in process | 2,645,195 | 2,761,775
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 | 1,904 | 5,686
Nonaccrual Loans with no Allowance for Credit Losses | 23,278 | 13,428
Financing receivable, before allowance for credit loss, fee and loan in process | 25,182 | 19,114
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 | 2,620,013 | 2,742,661
Nonresidential mortgage | Commercial |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, before allowance for credit loss, fee and loan in process | 965,539 | 968,574
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 | 174 | 11,815
Nonaccrual Loans with no Allowance for Credit Losses | 4,314 | 4,725
Financing receivable, before allowance for credit loss, fee and loan in process | 4,488 | 16,540
Nonresidential mortgage | Performing | Commercial |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, before allowance for credit loss, fee and loan in process | 961,051 | 952,034
Commercial business | Commercial |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, before allowance for credit loss, fee and loan in process | 147,326 | 146,861
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 | 827 | 71
Nonaccrual Loans with no Allowance for Credit Losses | 3,362 | 181
Financing receivable, before allowance for credit loss, fee and loan in process | 4,189 | 252
Commercial business | Performing | Commercial |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, before allowance for credit loss, fee and loan in process | 143,137 | 146,609
Construction | Commercial |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, before allowance for credit loss, fee and loan in process | 229,457 | 226,609
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 | 229,457 | 226,609
Home equity loans | Consumer |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, before allowance for credit loss, fee and loan in process | 42,731 | 43,549
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 | 45 | 50
Financing receivable, before allowance for credit loss, fee and loan in process | 45 | 50
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 | 42,686 | 43,499
Other consumer | Consumer |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, before allowance for credit loss, fee and loan in process | 3,198 | 2,549
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 | 0 | 0
Financing receivable, before allowance for credit loss, fee and loan in process | 0 | 0
Other consumer | Performing | Consumer |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, before allowance for credit loss, fee and loan in process | $ 3,198 | $ 2,549

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