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Noninterest Income (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2020 | Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Noninterest income |  |  |  |  |  |  |  |  |  |  |
Mortgage banking |  |  |  |  |  |  |  |  | $ 61,641 | $ 25,805 | $ 17,630
Net gains (losses) on investment securities |  |  |  |  |  |  |  |  | 2,737 | 357 | 85
Bank-owned life insurance income |  |  |  |  |  |  |  |  | 797 | 803 | 804
Total noninterest income | $ 38,696 | $ 45,256 | $ 38,230 | $ 27,189 | $ 29,556 | $ 29,580 | $ 29,984 | $ 25,074 | 149,371 | 114,194 | 102,749
Retirement and Benefit Services |  |  |  |  |  |  |  |  |  |  |
Noninterest income |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 60,956 | 63,811 | 63,316
Wealth Management |  |  |  |  |  |  |  |  |  |  |
Noninterest income |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 17,451 | 15,502 | 14,900
Deposit Account |  |  |  |  |  |  |  |  |  |  |
Noninterest income |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 1,409 | 1,772 | 1,808
Interchange Fees |  |  |  |  |  |  |  |  |  |  |
Noninterest income |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 2,140 | 1,972 | 2,005
Transactional Fees |  |  |  |  |  |  |  |  |  |  |
Noninterest income |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 1,246 | 1,236 | 1,106
Other Noninterest |  |  |  |  |  |  |  |  |  |  |
Noninterest income |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | $ 994 | $ 2,936 | $ 1,096

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- Definition Earnings on or other increases in the value of the cash surrender value of bank owned life insurance policies. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.13) -URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 + Details
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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 No definition available. + Details
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- Definition The total amount of noninterest income which may be derived from: (1) fees and commissions; (2) premiums earned; (3) insurance policy charges; (4) the sale or disposal of assets; and (5) other sources not otherwise specified. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.13) -URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 + Details
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