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CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Interest income |  |  |  |
Interest and fees on loans | $ 65,163 | $ 69,809 | $ 189,132 | $ 213,434
Interest and dividends on investment securities: |  |  |  |
Taxable interest income | 11,324 | 8,466 | 29,016 | 26,807
Non-taxable interest income | 915 | 1,141 | 2,878 | 3,458
Other interest income | 462 | 213 | 857 | 1,596
Total interest income | 77,864 | 79,629 | 221,883 | 245,295
Interest expense |  |  |  |
Deposits | 3,059 | 6,105 | 10,086 | 26,053
Federal funds purchased and securities sold under agreements to repurchase | 60 | 88 | 177 | 596
Short-term borrowings | 112 | 30 | 195 | 215
Long-term debt | 270 | 38 | 415 | 495
Senior notes | 400 | 400 | 1,199 | 1,199
Subordinated notes | 2,480 | 2,475 | 7,436 | 4,518
Junior subordinated debt owed to unconsolidated trusts | 728 | 740 | 2,185 | 2,220
Total interest expense | 7,109 | 9,876 | 21,693 | 35,296
Net interest income | 70,755 | 69,753 | 200,190 | 209,999
Provision for credit losses | (1,869) | 5,549 | (10,365) | 35,656
Net interest income after provision for credit losses | 72,624 | 64,204 | 210,555 | 174,343
Noninterest income |  |  |  |
Income on bank owned life insurance | 999 | 1,022 | 3,439 | 4,361
Net gains (losses) on sales of securities | (5) | 11 | 114 | 1,710
Unrealized gains (losses) recognized on equity securities | 62 | (437) | 2,482 | (1,234)
Other income | 3,071 | 3,339 | 7,134 | 5,888
Total noninterest income | 33,259 | 32,285 | 97,715 | 87,766
Noninterest expense |  |  |  |
Salaries, wages, and employee benefits | 41,949 | 32,839 | 107,222 | 95,397
Data processing | 7,782 | 3,937 | 16,881 | 12,383
Net occupancy expense of premises | 4,797 | 4,256 | 13,606 | 13,419
Furniture and equipment expenses | 2,208 | 2,325 | 6,300 | 7,311
Professional fees | 1,361 | 1,698 | 5,617 | 5,508
Amortization of intangible assets | 3,149 | 2,493 | 8,200 | 7,569
Interchange expense | 1,434 | 1,223 | 4,360 | 3,590
Other expense | 10,807 | 7,771 | 28,425 | 24,947
Total noninterest expense | 73,487 | 56,542 | 190,611 | 170,124
Income before income taxes | 32,396 | 39,947 | 117,659 | 91,985
Income taxes | 6,455 | 9,118 | 24,136 | 19,986
Net income | $ 25,941 | $ 30,829 | $ 93,523 | $ 71,999
Basic earnings per common share (in dollars per share) | $ 0.46 | $ 0.56 | $ 1.69 | $ 1.32
Diluted earnings per common share (in dollars per share) | 0.46 | 0.56 | 1.67 | 1.31
Dividends declared per share of common stock (in dollars per share) | $ 0.23 | $ 0.22 | $ 0.69 | $ 0.66
Wealth management fees |  |  |  |
Noninterest income |  |  |  |
Non-interest income | $ 13,749 | $ 10,548 | $ 39,335 | $ 32,296
Fees for customer services |  |  |  |
Noninterest income |  |  |  |
Non-interest income | 9,288 | 8,014 | 25,936 | 23,400
Remittance processing |  |  |  |
Noninterest income |  |  |  |
Non-interest income | 4,355 | 3,995 | 13,122 | 11,466
Mortgage revenue |  |  |  |
Noninterest income |  |  |  |
Mortgage revenue | $ 1,740 | $ 5,793 | $ 6,153 | $ 9,879

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