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REVENUE (Disaggregation of Revenue) (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020
Disaggregation of Revenue |  |
Mortgage banking income | $ 8,255 | $ 2,022
Gains on securities transactions | 78 | 1,936
Bank owned life insurance income | 2,265 | 2,049
Loan-related interest rate swap fees | 1,754 | 3,948
Other operating income | 3,101 | 2,141
Total noninterest income | 30,985 | 28,907
Noninterest income in Scope of Topic 606 |  |
Disaggregation of Revenue |  |
Other operating income | 1,000 | 2,400
Overdraft fees | Noninterest income in Scope of Topic 606 |  |
Disaggregation of Revenue |  |
Revenue from contract with customer | 3,081 | 5,765
Maintenance fees & other | Noninterest income in Scope of Topic 606 |  |
Disaggregation of Revenue |  |
Revenue from contract with customer | 2,428 | 1,813
Other service charges, commissions and fees | Noninterest income in Scope of Topic 606 |  |
Disaggregation of Revenue |  |
Revenue from contract with customer | 1,701 | 1,624
Interchange fees | Noninterest income in Scope of Topic 606 |  |
Disaggregation of Revenue |  |
Revenue from contract with customer | 1,847 | 1,625
Trust asset management fees | Noninterest income in Scope of Topic 606 |  |
Disaggregation of Revenue |  |
Revenue from contract with customer | 2,908 | 2,827
Registered advisor management fees | Noninterest income in Scope of Topic 606 |  |
Disaggregation of Revenue |  |
Revenue from contract with customer | 2,327 | 2,088
Brokerage management fees | Noninterest income in Scope of Topic 606 |  |
Disaggregation of Revenue |  |
Revenue from contract with customer | $ 1,240 | $ 1,069

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