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Loans - Amortized Cost of Collateral (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	$ 6,742,067	$ 6,747,873
Basis adjustments	232	2,025
Portfolio Layer Hedges on Closed Portfolio of Loans | Designated as hedging instrument
Accounts, Notes, Loans and Financing Receivable [Line Items]
Basis adjustments	200	2,000
Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	38,592	22,896
Business Assets
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	8,548	11,101
Multi-family Residential Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	2,536,046	2,531,613
Multi-family Residential Portfolio Segment [Member] | Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	26,752	11,707
Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	1,955,236	1,974,622
Commercial Real Estate | Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	6,824	6,376
1-4 Family Mixed-Use Property
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	504,091	513,938
1-4 Family Mixed-Use Property | Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	442	117
1-4 Family Residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	269,710	244,593
1-4 Family Residential | Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	635	812
Construction Portfolio Segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	63,234	60,114
Small Business Administration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	14,930	20,195
Small Business Administration | Business Assets
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	2,529	2,531
Commercial Business and Other Portfolio Segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	1,398,820	1,402,798
Commercial Business and Other Portfolio Segment | Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	3,939	3,884
Commercial Business and Other Portfolio Segment | Business Assets
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	$ 6,019	$ 8,570

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Amount of portfolio layer basis adjustments, of financing receivable. Excludes net investment in lease.

+ References

No definition available.

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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 310
-SubTopic 20
-Name Accounting Standards Codification
-Section 40
-Paragraph 7
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481628/310-20-40-7

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-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

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- Definition

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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479344/326-20-45-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3B
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-5

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