Noninterest Income (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Noninterest income
Mortgage banking	$ 16,921	$ 48,502	$ 61,641
Net gains (losses) on investment securities		125	2,737
Bank-owned life insurance income	835	793	797
Total noninterest income	111,223	147,387	149,371
Retirement and benefits
Noninterest income
Revenue	67,135	71,709	60,956
Wealth management
Noninterest income
Revenue	20,870	21,052	17,451
Deposit Account
Noninterest income
Revenue	1,434	1,395	1,409
Interchange fees
Noninterest income
Revenue	2,246	2,180	2,140
Misc. transactional fees
Noninterest income
Revenue	1,429	1,218	1,246
Other noninterest income
Noninterest income
Revenue	$ 353	$ 413	$ 994

The amount of non interest income on mortgage banking.

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Earnings on or other increases in the value of the cash surrender value of bank owned life insurance policies.

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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).

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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

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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