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Loans - Non-Accrual at Amortized Cost (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2025	Dec. 31, 2024
Financing Receivable, Excluding Accrued Interest, Nonaccrual
Non-accrual amortized cost beginning of the reporting period	$ 33,997	$ 23,659
Non-accrual amortized cost end of the reporting period	47,140	33,997
Non-accrual with no related allowance	38,386	22,358
Interest income recognized	25	11
Multi-family residential
Financing Receivable, Excluding Accrued Interest, Nonaccrual
Non-accrual amortized cost beginning of the reporting period	11,707	3,640
Non-accrual amortized cost end of the reporting period	26,752	11,707
Non-accrual with no related allowance	21,432	6,476
Interest income recognized	24	5
Commercial Real Estate
Financing Receivable, Excluding Accrued Interest, Nonaccrual
Non-accrual amortized cost beginning of the reporting period	6,376
Non-accrual amortized cost end of the reporting period	6,824	6,376
Non-accrual with no related allowance	6,824	6,376
One-to-four family - mixed- use property
Financing Receivable, Excluding Accrued Interest, Nonaccrual
Non-accrual amortized cost beginning of the reporting period	117	1,005
Non-accrual amortized cost end of the reporting period	442	117
Non-accrual with no related allowance	442	117
Interest income recognized		1
One-to-four family - residential
Financing Receivable, Excluding Accrued Interest, Nonaccrual
Non-accrual amortized cost beginning of the reporting period	812	4,670
Non-accrual amortized cost end of the reporting period	635	812
Non-accrual with no related allowance	635	812
Interest income recognized	1	2
Small Business Administration
Financing Receivable, Excluding Accrued Interest, Nonaccrual
Non-accrual amortized cost beginning of the reporting period	2,531	2,576
Non-accrual amortized cost end of the reporting period	2,529	2,531
Non-accrual with no related allowance	2,529	2,531
Commercial business and other
Financing Receivable, Excluding Accrued Interest, Nonaccrual
Non-accrual amortized cost beginning of the reporting period	12,454	11,768
Non-accrual amortized cost end of the reporting period	9,958	12,454
Non-accrual with no related allowance	$ 6,524	6,046
Interest income recognized		$ 3

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+ References

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- Definition

Amortized cost excluding accrued interest, of financing receivable on nonaccrual status. Excludes 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 16
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-16

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- Definition

Amortized cost excluding accrued interest, of financing receivable on nonaccrual status with no allowance for credit loss. Excludes 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 16
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-16

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