Loans Receivable and Allowance for Credit Losses - Interest Income on Impaired Loans (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	$ 23,730	$ 51,465	$ 23,915	$ 54,847
Interest Income Recognized	253	536	594	1,089
Real estate loans \| One-to-four family
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	4,577	6,149	4,779	6,518
Interest Income Recognized	46	102	101	170
Real estate loans \| Multifamily
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	731	16,468	741	16,468
Interest Income Recognized	11	177	22	349
Real estate loans \| Commercial real estate
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	16,176	25,030	16,061	27,617
Interest Income Recognized	164	198	406	462
Commercial business loans
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	1,373	2,295	1,517	2,679
Interest Income Recognized	22	41	44	70
Consumer loans \| Home equity loans and advances
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	873	1,523	817	1,565
Interest Income Recognized	$ 10	$ 18	$ 21	$ 38

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- Definition

Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)(1)
-URI https://asc.fasb.org/extlink&oid=123577603&loc=d3e5212-111524

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 17
-URI https://asc.fasb.org/extlink&oid=123577603&loc=d3e5258-111524

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Amount of interest income recognized that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired.

+ References

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