Allowance for Credit Losses on Loans and Off-Balance Sheet Credit Exposures - Schedule of Financing Receivable, Modifications (Details) - Commercial Real Estate - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2023	Jun. 30, 2023
Non-residential commercial real estate \| Contractual Interest Rate Reduction
Financing Receivable, Modifications [Line Items]
Amortized Cost Basis	$ 0	$ 413
% of Loan Class	0.00%	0.14%
Non-residential commercial real estate \| Contractual Interest Rate Reduction \| Maximum
Financing Receivable, Modifications [Line Items]
Weighted average interest rate decrease to modification	8.75%	8.75%
Non-residential commercial real estate \| Contractual Interest Rate Reduction \| Minimum
Financing Receivable, Modifications [Line Items]
Weighted average interest rate decrease to modification	6.85%	6.85%
Non-residential commercial real estate \| Extended Maturity
Financing Receivable, Modifications [Line Items]
Amortized Cost Basis	$ 3,383	$ 3,383
% of Loan Class	1.17%	1.17%
Modification allowed interest period	7 months	7 months
Multi-family residential real estate \| Contractual Interest Rate Reduction
Financing Receivable, Modifications [Line Items]
Amortized Cost Basis	$ 0	$ 446
% of Loan Class	0.00%	0.45%
Multi-family residential real estate \| Contractual Interest Rate Reduction \| Maximum
Financing Receivable, Modifications [Line Items]
Weighted average interest rate decrease to modification	9.25%	9.25%
Multi-family residential real estate \| Contractual Interest Rate Reduction \| Minimum
Financing Receivable, Modifications [Line Items]
Weighted average interest rate decrease to modification	7.75%	7.75%

Amortized cost excluding accrued interest, of financing receivable modified during period for debtor experiencing financial difficulty.

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- Definition

Percentage, excluding accrued interest, of financing receivable modified during period for debtor experiencing financial difficulty to total financing receivables.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Section 50
-Paragraph 42
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Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Topic 310
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-Section 55
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-URI https://asc.fasb.org//1943274/2147481933/310-10-55-12A

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
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-Paragraph 34
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-34

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- Definition

Percentage of decrease in weighted average contractual interest rate of financing receivable modified for debtor experiencing financial difficulty.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 12A
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481933/310-10-55-12A

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- Definition

Period of increase in weighted average maturity of financing receivable modified for debtor experiencing financial difficulty, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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