Loans Receivable - Modified Loans (Details) $ in Thousands	Jun. 30, 2026 USD ($)
Financing Receivable Modifications [Line Items]
Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months	$ 2,404
Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months, Non Accrual	141
Current
Financing Receivable Modifications [Line Items]
Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months	25,601
30-89 Days Past Due
Financing Receivable Modifications [Line Items]
Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months	2,404
90 Days and Over
Financing Receivable Modifications [Line Items]
Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months	0
Multi-family mortgage
Financing Receivable Modifications [Line Items]
Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months	2,404
Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months, Non Accrual	0
Multi-family mortgage \| Current
Financing Receivable Modifications [Line Items]
Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months	24,678
Multi-family mortgage \| 30-89 Days Past Due
Financing Receivable Modifications [Line Items]
Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months	2,404
Multi-family mortgage \| 90 Days and Over
Financing Receivable Modifications [Line Items]
Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months	0
Commercial and industrial
Financing Receivable Modifications [Line Items]
Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months	0
Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months, Non Accrual	0
Commercial and industrial \| Current
Financing Receivable Modifications [Line Items]
Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months	696
Commercial and industrial \| 30-89 Days Past Due
Financing Receivable Modifications [Line Items]
Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months	0
Commercial and industrial \| 90 Days and Over
Financing Receivable Modifications [Line Items]
Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months	0
One- to four-family residential mortgage
Financing Receivable Modifications [Line Items]
Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months	0
Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months, Non Accrual	141
One- to four-family residential mortgage \| Current
Financing Receivable Modifications [Line Items]
Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months	227
One- to four-family residential mortgage \| 30-89 Days Past Due
Financing Receivable Modifications [Line Items]
Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months	0
One- to four-family residential mortgage \| 90 Days and Over
Financing Receivable Modifications [Line Items]
Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months	$ 0