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Condensed Financial Information of Synovus Financial Corp. (Parent Company only) - Condensed Statements Of Income (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Expense |  |  |
Interest expense | $ 1,233,703 | $ 278,887 | $ 120,396
Other expense | 1,335,424 | 1,157,506 | 1,099,904
Net income attributable to Synovus Financial Corp. | 543,705 | 757,902 | 760,467
Net income available to common shareholders | 507,755 | 724,739 | 727,304
Parent Company |  |  |
Income |  |  |
Cash dividends received from subsidiaries | 435,000 | 350,000 | 420,000
Interest income | 6,129 | 1,841 | 777
Other income (loss) | (101) | (7,203) | 1,070
Total income | 441,028 | 344,638 | 421,847
Expense |  |  |
Interest expense | 36,849 | 34,154 | 27,616
Other expense | 12,494 | 17,804 | 10,300
Total expense | 49,343 | 51,958 | 37,916
Income before income taxes and equity in undistributed income of subsidiaries | 391,685 | 292,680 | 383,931
Allocated income tax benefit | (10,026) | (16,667) | (7,834)
Income before equity in undistributed income of subsidiaries | 401,711 | 309,347 | 391,765
Equity in undistributed income (loss) of subsidiaries | 141,994 | 448,555 | 368,702
Net income attributable to Synovus Financial Corp. | 543,705 | 757,902 | 760,467
Less: Preferred stock dividends | 35,950 | 33,163 | 33,163
Net income available to common shareholders | $ 507,755 | $ 724,739 | $ 727,304

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