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LOANS HELD FOR INVESTMENT, NET - Performance of Modified Loans, After 12 Months (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Jun. 30, 2024
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans that defaulted during the quarter and were modified in the 12 months before default to borrowers experiencing financial difficulty	$ 117,841	$ 117,854
Current
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans that defaulted during the quarter and were modified in the 12 months before default to borrowers experiencing financial difficulty	74,967	87,646
60 to 89 Days Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans that defaulted during the quarter and were modified in the 12 months before default to borrowers experiencing financial difficulty	27,605	27,577
Non-Accrual
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans that defaulted during the quarter and were modified in the 12 months before default to borrowers experiencing financial difficulty	15,269	2,631
Business Loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans that defaulted during the quarter and were modified in the 12 months before default to borrowers experiencing financial difficulty	18,763	5,470
Business Loans | Current
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans that defaulted during the quarter and were modified in the 12 months before default to borrowers experiencing financial difficulty	18,481	3,743
Business Loans | Non-Accrual
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans that defaulted during the quarter and were modified in the 12 months before default to borrowers experiencing financial difficulty	282	1,727
One-to-Four Family Residential and Cooperative/Condominium Apartment
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans that defaulted during the quarter and were modified in the 12 months before default to borrowers experiencing financial difficulty		4,293
One-to-Four Family Residential and Cooperative/Condominium Apartment | Current
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans that defaulted during the quarter and were modified in the 12 months before default to borrowers experiencing financial difficulty		3,389
One-to-Four Family Residential and Cooperative/Condominium Apartment | Non-Accrual
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans that defaulted during the quarter and were modified in the 12 months before default to borrowers experiencing financial difficulty		904
Multifamily Residential and Residential Mixed-Use
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans that defaulted during the quarter and were modified in the 12 months before default to borrowers experiencing financial difficulty	56,336	52,290
Multifamily Residential and Residential Mixed-Use | Current
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans that defaulted during the quarter and were modified in the 12 months before default to borrowers experiencing financial difficulty	28,731	24,713
Multifamily Residential and Residential Mixed-Use | 60 to 89 Days Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans that defaulted during the quarter and were modified in the 12 months before default to borrowers experiencing financial difficulty	27,605	27,577
Non-Owner-Occupied Commercial Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans that defaulted during the quarter and were modified in the 12 months before default to borrowers experiencing financial difficulty	42,742	55,801
Non-Owner-Occupied Commercial Real Estate | Current
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans that defaulted during the quarter and were modified in the 12 months before default to borrowers experiencing financial difficulty	27,755	$ 55,801
Non-Owner-Occupied Commercial Real Estate | Non-Accrual
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans that defaulted during the quarter and were modified in the 12 months before default to borrowers experiencing financial difficulty	$ 14,987

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- Definition

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Name Regulation S-K (SK)
-Number 229
-Section 1405
-Paragraph c
-Publisher SEC

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 42
-Subparagraph (a)(3)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481962/310-10-50-42

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