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Noninterest Income (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Noninterest income |  |  |
Mortgage banking | $ 8,411 | $ 16,921 | $ 48,502
Net gains (losses) on investment securities | (24,643) |  | 125
Bank-owned life insurance income | 877 | 836 | 793
Total noninterest income | 80,229 | 111,223 | 147,387
Retirement and benefit services |  |  |
Noninterest income |  |  |
Revenue | 65,294 | 67,135 | 71,709
Wealth management |  |  |
Noninterest income |  |  |
Revenue | 21,855 | 20,870 | 21,052
Deposit Account |  |  |
Noninterest income |  |  |
Revenue | 1,280 | 1,434 | 1,395
Interchange fees |  |  |
Noninterest income |  |  |
Revenue | 2,222 | 2,246 | 2,180
Misc. transactional fees |  |  |
Noninterest income |  |  |
Revenue | 1,433 | 1,429 | 1,218
Other noninterest income |  |  |
Noninterest income |  |  |
Revenue | $ 3,500 | $ 352 | $ 413

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- Definition Amount of realized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), investment in debt security measured at amortized cost (held-to-maturity) and investment in debt security measured at fair value with change in fair value recognized in net income (trading). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(7)(c)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483621/220-10-S99-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(9)(a)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483621/220-10-S99-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(3)(d)(1)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483586/944-220-S99-1 + Details
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