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Condensed Financial Information Of Synovus Financial Corp. (Parent Company Only) - Condensed Statements of Cash Flows (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Operating Activities |  |  |
Net income | $ 760,467 | $ 373,695 | $ 563,780
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Other | 0 | 55,343 | 4,592
Net cash provided by operating activities | 794,016 | 17,032 | 621,050
Investing Activities |  |  |
Proceeds from sales of investment securities available for sale | 565,400 | 2,649,686 | 2,923,787
Net cash used in investing activities | (4,384,166) | (2,352,973) | (2,153,862)
Financing Activities |  |  |
Repurchase of common stock | (199,932) | (16,246) | (725,398)
Repayments and redemption of long-term debt | 0 | (2,408,939) | (157,226)
Proceeds from issuance of long-term debt, net | 0 | 1,445,492 | 497,045
Proceeds from issuance of preferred stock, net | 0 | 0 | 342,005
Other | (8,624) | (1,552) | (1,947)
Net cash provided by financing activities | 2,347,086 | 5,401,940 | 1,576,166
Increase (decrease) in cash and cash equivalents including restricted cash | (1,243,064) | 3,065,999 | 43,354
Cash, cash equivalents, and restricted cash at beginning of year | 4,252,917 | 1,186,918 | 1,143,564
Cash, cash equivalents, and restricted cash at end of year | 3,009,853 | 4,252,917 | 1,186,918
Income taxes paid | 204,214 | 110,828 | 101,781
Interest paid | 132,923 | 319,282 | 464,712
Parent Company |  |  |
Operating Activities |  |  |
Net income | 760,467 | 373,695 | 563,780
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Equity in undistributed (income) loss of subsidiaries | (368,702) | 140,819 | (191,373)
Deferred income tax expense (benefit) | (7,296) | 3,962 | 1,775
Net increase (decrease) in other liabilities | (2,082) | 11,243 | 43,617
Net decrease in other assets | 5,280 | 17,441 | 3,367
Other | 928 | (5,132) | 1,037
Net cash provided by operating activities | 388,595 | 542,028 | 422,203
Investing Activities |  |  |
Proceeds from sales of investment securities available for sale | 0 | 0 | 97,389
Advance of long-term note receivable due from bank subsidiary | 0 | 0 | (100,000)
Return of investment non-bank subsidiary | 0 | 0 | 790
Proceeds from sales of equity securities | 0 | 23,141 | 0
Increase in other investments | (10,000) | 0 | 0
Net cash received in business combination, net of cash paid | 0 | 0 | 4,813
Net cash used in investing activities | (10,000) | 23,141 | 2,992
Financing Activities |  |  |
Dividends paid to common and preferred shareholders | (227,840) | (223,130) | (185,664)
Repurchase of common stock | (199,932) | (16,246) | (725,398)
Repayments and redemption of long-term debt | 0 | (250,000) | 0
Proceeds from issuance of long-term debt, net | 0 | 0 | 297,174
Proceeds from issuance of preferred stock, net | 0 | 0 | 342,005
Other | (1,104) | (1,552) | (1,947)
Net cash provided by financing activities | (428,876) | (490,928) | (273,830)
Increase (decrease) in cash and cash equivalents including restricted cash | (50,281) | 74,241 | 151,365
Cash, cash equivalents, and restricted cash at beginning of year | 448,629 | 374,388 | 223,023
Cash, cash equivalents, and restricted cash at end of year | 398,348 | 448,629 | 374,388
Income taxes paid | 203,200 | 119,100 | 101,600
Interest paid | $ 27,300 | $ 42,000 | $ 33,100

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- Definition The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3255-108585 + Details
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