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Loans Receivable - Schedule of Loans Receivable (Details) - USD ($) $ in Thousands | Jun. 30, 2023 | Jun. 30, 2022
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Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing receivable, before allowance for credit loss, fee and loan in process | $ 5,850,476 | $ 5,436,576
Unaccreted yield adjustments | (21,055) | (18,731)
Total loans receivable, net of yield adjustments | 5,829,421 | 5,417,845
Commercial loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing receivable, before allowance for credit loss, fee and loan in process | 4,103,819 | 3,745,866
Commercial loans | Multi-family mortgage |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing receivable, before allowance for credit loss, fee and loan in process | 2,761,775 | 2,409,090
Commercial loans | Nonresidential mortgage |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing receivable, before allowance for credit loss, fee and loan in process | 968,574 | 1,019,838
Commercial loans | Commercial business |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing receivable, before allowance for credit loss, fee and loan in process | 146,861 | 176,807
Commercial loans | Construction |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing receivable, before allowance for credit loss, fee and loan in process | 226,609 | 140,131
Residential mortgage |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing receivable, before allowance for credit loss, fee and loan in process | 1,700,559 | 1,645,816
Consumer loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing receivable, before allowance for credit loss, fee and loan in process | 46,098 | 44,894
Consumer loans | Home equity loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing receivable, before allowance for credit loss, fee and loan in process | 43,549 | 42,028
Consumer loans | Other consumer |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing receivable, before allowance for credit loss, fee and loan in process | $ 2,549 | $ 2,866

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- Definition Amortized cost, before allowance for credit loss, fee, and loan in process, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-5 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481990/310-10-45-2 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(7)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1 + Details
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