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v3.24.2

Investments - Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2024 | Jun. 30, 2024 | Jun. 30, 2023 | Dec. 31, 2023
Debt Securities, Available-for-sale [Line Items] |  |  |  |
Cumulative net unamortized unrealized gain | $ 519 | $ 519 |  | $ 1,603
Maximum percentage of shareholders' equity security holdings held of one issuer | 10.00% | 10.00% |  | 10.00%
Securities pledged | $ 1,200,000 | $ 1,200,000 |  | $ 1,600,000
Mortgage-backed securities, weighted average life |  | 4 years |  |
Allowance for credit losses on available-for-sale securities | 0 | $ 0 |  | 0
Accrued interest receivable, held-to-maturity securities | 6,900 | 6,900 |  | 6,500
Allowance for credit losses on held-to-maturity securities | 314 | 314 |  | 785
Sale of debt securities, available-for-sale | 0 |  | $ 28,400 |
Debt Securities, Available-for-sale, Realized Gain |  |  | $ 400 |
Other investments, at cost | 71,971 | 71,971 |  | 66,195
Reclassified to Held to Maturity |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |
Cumulative net unamortized unrealized gain | 12,500 | 12,500 |  | 14,100
Des Moines |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |
Other investments, at cost | $ 12,200 | $ 12,200 |  | $ 7,800

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