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Bank segment - Collateral - Dependent loans (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Financing Receivable, Nonaccrual [Line Items] |  |
Consumer mortgage loans collateralized by residential real estate property in foreclosure process | $ 4,800 | $ 3,400
Residential real estate property | Real estate | Residential 1-4 family |  |
Financing Receivable, Nonaccrual [Line Items] |  |
Collateral-dependent loans, amortized cost | 5,731 | 2,272
Residential real estate property | Real estate | Home equity line of credit |  |
Financing Receivable, Nonaccrual [Line Items] |  |
Collateral-dependent loans, amortized cost | 1,674 | 1,135
Collateral pledged |  |
Financing Receivable, Nonaccrual [Line Items] |  |
Collateral-dependent loans, amortized cost | 18,739 | 14,756
Collateral pledged | Real estate |  |
Financing Receivable, Nonaccrual [Line Items] |  |
Collateral-dependent loans, amortized cost | 18,453 | 14,455
Commercial real estate | Real estate | Commercial real estate |  |
Financing Receivable, Nonaccrual [Line Items] |  |
Collateral-dependent loans, amortized cost | 11,048 | 11,048
Business assets | Commercial |  |
Financing Receivable, Nonaccrual [Line Items] |  |
Collateral-dependent loans, amortized cost | $ 286 | $ 301

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