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Bank segment - Allowance for Loan Commitments (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Allowance for loan commitments: |  |  |  |
Beginning balance | $ 4,200 | $ 4,600 | $ 5,100 | $ 4,400
Provision | 0 | 500 | (900) | 700
Ending balance | 4,200 | 5,100 | 4,200 | 5,100
Real estate | Home equity line of credit |  |  |  |
Allowance for loan commitments: |  |  |  |
Beginning balance | 700 | 600 | 600 | 400
Provision | 0 | 0 | 100 | 200
Ending balance | 700 | 600 | 700 | 600
Real estate | Commercial construction |  |  |  |
Allowance for loan commitments: |  |  |  |
Beginning balance | 3,100 | 3,800 | 4,300 | 2,600
Provision | 0 | 500 | (1,200) | 1,700
Ending balance | 3,100 | 4,300 | 3,100 | 4,300
Commercial |  |  |  |
Allowance for loan commitments: |  |  |  |
Beginning balance | 400 | 200 | 200 | 1,400
Provision | 0 | 0 | 200 | (1,200)
Ending balance | $ 400 | $ 200 | $ 400 | $ 200

X
- Definition Amount of expected credit loss for credit exposure on off-balance-sheet commitment, including but not limited to, loan commitment, standby letter of credit, financial guarantee not accounted for as insurance. Excludes off-balance sheet credit exposure accounted for as insurance and instrument accounted for under derivatives and hedging. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479344/326-20-45-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 460 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482454/460-10-45-1 + Details
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- Definition Amount of expense (reversal of expense) for expected credit loss for off-balance sheet credit exposure. Excludes off-balance sheet credit exposure accounted for as insurance and instrument accounted for under derivatives and hedging. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-13 + Details
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