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CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Interest income: |  |  |  |
Loans, including fees | $ 232,788 | $ 226,281 | $ 460,160 | $ 462,701
Securities: |  |  |  |
Taxable | 8,359 | 9,589 | 16,087 | 19,857
Tax-exempt | 16,546 | 14,596 | 32,044 | 28,420
Federal funds sold and other | 1,543 | 1,272 | 2,862 | 3,829
Total interest income | 259,236 | 251,738 | 511,153 | 514,807
Interest expense: |  |  |  |
Deposits | 13,861 | 33,727 | 31,329 | 84,425
Securities sold under agreements to repurchase | 56 | 94 | 128 | 209
Federal Home Loan Bank advances and other borrowings | 12,094 | 17,260 | 23,601 | 35,964
Total interest expense | 26,011 | 51,081 | 55,058 | 120,598
Net interest income | 233,225 | 200,657 | 456,095 | 394,209
Provision for credit losses | 2,834 | 68,332 | 10,069 | 168,221
Net interest income after provision for credit losses | 230,391 | 132,325 | 446,026 | 225,988
Noninterest income: |  |  |  |
Total noninterest income | 98,207 | 72,954 | 190,916 | 143,331
Noninterest expense: |  |  |  |
Salaries and employee benefits | 110,824 | 73,887 | 213,552 | 154,367
Equipment and occupancy | 23,321 | 22,026 | 46,541 | 43,004
Other real estate (income) expense, net | (657) | 2,888 | (670) | 5,303
Marketing and other business development | 2,652 | 2,142 | 5,001 | 5,393
Postage and supplies | 2,115 | 2,070 | 3,921 | 4,060
Amortization of intangibles | 2,167 | 2,479 | 4,373 | 4,999
Other noninterest expense | 25,718 | 26,113 | 48,118 | 51,828
Total noninterest expense | 166,140 | 131,605 | 320,836 | 268,954
Income before income taxes | 162,458 | 73,674 | 316,106 | 100,365
Income tax expense | 30,668 | 11,230 | 58,888 | 9,565
Net income | 131,790 | 62,444 | 257,218 | 90,800
Preferred stock dividends | (3,798) | 0 | (7,596) | 0
Net income available to common shareholders | $ 127,992 | $ 62,444 | $ 249,622 | $ 90,800
Per share information: |  |  |  |
Basic net income per common share | $ 1.70 | $ 0.83 | $ 3.31 | $ 1.20
Diluted net income per common share | $ 1.69 | $ 0.83 | $ 3.30 | $ 1.20
Weighted average common shares outstanding: |  |  |  |
Basic | 75,481,198 | 75,210,869 | 75,427,340 | 75,507,136
Diluted | 75,809,974 | 75,323,259 | 75,735,763 | 75,645,768
Service charges on deposit accounts |  |  |  |
Noninterest income: |  |  |  |
Total noninterest income | $ 8,906 | $ 6,910 | $ 17,213 | $ 15,942
Investment services |  |  |  |
Noninterest income: |  |  |  |
Total noninterest income | 8,997 | 5,971 | 17,188 | 15,210
Insurance sales commissions |  |  |  |
Noninterest income: |  |  |  |
Total noninterest income | 2,406 | 2,231 | 5,631 | 5,471
Gain on mortgage loans sold, net |  |  |  |
Noninterest income: |  |  |  |
Total noninterest income | 6,700 | 19,619 | 20,366 | 28,202
Investment gains (losses) on sales, net |  |  |  |
Noninterest income: |  |  |  |
Total noninterest income | 366 | (128) | 366 | 335
Trust fees |  |  |  |
Noninterest income: |  |  |  |
Total noninterest income | 5,062 | 3,958 | 9,749 | 8,128
Income from equity method investment |  |  |  |
Noninterest income: |  |  |  |
Total noninterest income | 32,071 | 17,208 | 61,021 | 32,800
Other noninterest income |  |  |  |
Noninterest income: |  |  |  |
Total noninterest income | $ 33,699 | $ 17,185 | $ 59,382 | $ 37,243

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