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Condensed Parent Company Only Financial Statements - Condensed Cash Flow Statements (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2017 | Sep. 30, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Operating activities |  |  |  |  |  |  |  |  |  |  |
Net Income | $ 18,911 | $ 20,902 | $ 22,059 | $ 20,436 | $ 2,457 | $ 17,394 | $ 16,926 | $ 15,717 | $ 82,308 | $ 52,494 | $ 59,340
Adjustments to reconcile net income to net cash provided by operating activities |  |  |  |  |  |  |  |  |  |  |
Other, net |  |  |  |  |  |  |  |  | (3,468) | 1,057 | (2,093)
Investing activities |  |  |  |  |  |  |  |  |  |  |
Other, net |  |  |  |  |  |  |  |  | 216 | 2,576 | 119
Financing activities |  |  |  |  |  |  |  |  |  |  |
Cash dividends |  |  |  |  |  |  |  |  | (29,634) | (27,627) | (26,603)
Repurchase of common shares |  |  |  |  |  |  |  |  | (2,448) | 0 | (1,166)
Redemption of trust preferred debentures |  |  |  |  |  |  |  |  | 0 | (21,161) | 0
Shares issued for dividend reinvestment plans |  |  |  |  |  |  |  |  | 0 | 2,872 | 3,201
Shares issued for employee stock ownership plan |  |  |  |  |  |  |  |  | 3,073 | 2,296 | 1,938
Proceeds from stock option exercises |  |  |  |  |  |  |  |  | (540) | (641) | (806)
Net (Decrease) Increase Cash and Cash Equivalents |  |  |  |  |  |  |  |  | (3,914) | 20,349 | 5,697
Cash and cash equivalents at beginning of year |  |  |  | 84,303 |  |  |  | 63,954 | 84,303 | 63,954 | 58,257
Total Cash & Cash Equivalents at End of Year | 80,389 |  |  |  | 84,303 |  |  |  | 80,389 | 84,303 | 63,954
Tompkins (the Parent Company) |  |  |  |  |  |  |  |  |  |  |
Operating activities |  |  |  |  |  |  |  |  |  |  |
Net Income |  |  |  |  |  |  |  |  | 82,308 | 52,494 | 59,340
Adjustments to reconcile net income to net cash provided by operating activities |  |  |  |  |  |  |  |  |  |  |
Equity in undistributed earnings of subsidiaries |  |  |  |  |  |  |  |  | (44,461) | (24,494) | (16,770)
Other, net |  |  |  |  |  |  |  |  | 1,014 | (1,569) | 1,826
Net Cash Provided by Operating Activities |  |  |  |  |  |  |  |  | 38,861 | 26,431 | 44,396
Investing activities |  |  |  |  |  |  |  |  |  |  |
Other, net |  |  |  |  |  |  |  |  | 0 | 1,052 | 24
Net Cash Provided by Investing Activities |  |  |  |  |  |  |  |  | 0 | 1,052 | 24
Financing activities |  |  |  |  |  |  |  |  |  |  |
Borrowings, net |  |  |  |  |  |  |  |  | (5,000) | (28,161) | 2,490
Cash dividends |  |  |  |  |  |  |  |  | (29,634) | (27,627) | (26,603)
Repurchase of common shares |  |  |  |  |  |  |  |  | (2,448) | 0 | (1,166)
Redemption of trust preferred debentures |  |  |  |  |  |  |  |  | (1,403) | (1,294) | (835)
Shares issued for dividend reinvestment plans |  |  |  |  |  |  |  |  | 0 | 2,872 | 3,201
Shares issued for employee stock ownership plan |  |  |  |  |  |  |  |  | 3,073 | 2,296 | 1,938
Proceeds from stock option exercises |  |  |  |  |  |  |  |  | (540) | (641) | (806)
Net Cash Used in Financing Activities |  |  |  |  |  |  |  |  | (35,952) | (52,555) | (21,781)
Net (Decrease) Increase Cash and Cash Equivalents |  |  |  |  |  |  |  |  | 2,909 | (25,072) | 22,639
Cash and cash equivalents at beginning of year |  |  |  | $ 3,326 |  |  |  | $ 28,398 | 3,326 | 28,398 | 5,759
Total Cash & Cash Equivalents at End of Year | $ 6,235 |  |  |  | $ 3,326 |  |  |  | $ 6,235 | $ 3,326 | $ 28,398

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