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Renasant Corporation (Parent Company Only) Condensed Financial Information - Statements of 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
Income |  |  |  |  |  |  |  |  |  |  |
Other dividends |  |  |  |  |  |  |  |  | $ 1,189 | $ 5,892 | $ 3,076
Total noninterest income | $ 62,864 | $ 70,928 | $ 64,170 | $ 37,570 | $ 37,456 | $ 37,953 | $ 41,960 | $ 35,885 | 235,532 | 153,254 | 143,961
Expenses | 13,799 | 15,792 | 18,173 | 23,571 | 24,263 | 25,651 | 25,062 | 23,947 | 71,335 | 98,923 | 65,329
Income before income tax benefit and equity in undistributed net income of bank subsidiary | 38,339 | 37,604 | 24,767 | 2,781 | 47,839 | 48,578 | 60,570 | 58,700 | 103,491 | 215,687 | 188,647
Income tax benefit | 6,818 | 7,612 | 4,637 | 773 | 9,424 | 11,132 | 13,945 | 13,590 | 19,840 | 48,091 | 41,727
Net income | $ 31,521 | $ 29,992 | $ 20,130 | $ 2,008 | $ 38,415 | $ 37,446 | $ 46,625 | $ 45,110 | 83,651 | 167,596 | 146,920
Renasant Corporation |  |  |  |  |  |  |  |  |  |  |
Income |  |  |  |  |  |  |  |  |  |  |
Dividends from bank subsidiary |  |  |  |  |  |  |  |  | 81,443 | 132,563 | 53,381
Interest income from bank subsidiary |  |  |  |  |  |  |  |  | 9 | 9 | 8
Other dividends |  |  |  |  |  |  |  |  | 93 | 175 | 137
Other income |  |  |  |  |  |  |  |  | 74 | 138 | 121
Total noninterest income |  |  |  |  |  |  |  |  | 81,619 | 132,885 | 53,647
Expenses |  |  |  |  |  |  |  |  | 15,179 | 16,050 | 13,869
Income before income tax benefit and equity in undistributed net income of bank subsidiary |  |  |  |  |  |  |  |  | 66,440 | 116,835 | 39,778
Income tax benefit |  |  |  |  |  |  |  |  | (3,889) | (4,077) | (3,523)
Equity in undistributed net income of bank subsidiary |  |  |  |  |  |  |  |  | 13,322 | 46,684 | 103,619
Net income |  |  |  |  |  |  |  |  | $ 83,651 | $ 167,596 | $ 146,920

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