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City Holding Company (Parent Company Only) Financial Information (Condensed Statements Of Cash Flows) (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended | 13 Months Ended
--- | --- | --- | ---
Dec. 31, 2017 | Sep. 30, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2017
Operating Activities |  |  |  |  |  |  |  |  |  |  |  |
Net Income Available to Common Shareholders | $ 9,669 | $ 13,932 | $ 14,685 | $ 16,026 | $ 14,656 | $ 13,232 | $ 12,541 | $ 11,702 | $ 54,310 | $ 52,128 | $ 54,097 |
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |  |  |  |  |  |  |  |  |  |
Realized investment securities gains |  |  |  |  |  |  |  |  | (4,476) | (3,978) | (2,130) |
Deferred income tax expense |  |  |  |  |  |  |  |  | 14,909 | 3,817 | 6,627 |
Stock based compensation |  |  |  |  |  |  |  |  | 2,097 | 2,018 | 1,793 |
Depreciation |  |  |  |  |  |  |  |  | 5,884 | 6,235 | 6,088 |
Asset write down |  |  |  |  |  |  |  |  | 0 | 444 | 1,449 |
Change in other assets |  |  |  |  |  |  |  |  | 1,277 | (1,556) | (976) |
Change in other liabilities |  |  |  |  |  |  |  |  | (426) | 5,581 | (8,478) |
Net Cash Provided by Operating Activities |  |  |  |  |  |  |  |  | 77,843 | 65,330 | 47,895 |
Investing Activities |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from sales of available for sale securities |  |  |  |  |  |  |  |  | 5,776 | 30,850 | 389 |
Net Cash Provided by Investing Activities |  |  |  |  |  |  |  |  | (173,405) | (261,293) | (184,080) |
Financing Activities |  |  |  |  |  |  |  |  |  |  |  |
Dividends paid |  |  |  |  |  |  |  |  | (27,120) | (25,718) | (25,304) |
Issuance of common stock |  |  |  |  |  |  |  |  | 28,408 | 6,864 | 0 | $ 36,400
Purchases of treasury stock |  |  |  |  |  |  |  |  | 0 | (10,018) | (7,055) |
Exercise of stock options |  |  |  |  |  |  |  |  | 600 | 1,200 | 3,000 |
Proceeds from exercise of warrants |  |  |  |  |  |  |  |  | 0 | 0 | 1,896 |
Net Cash Provided by (Used in) Financing Activities |  |  |  |  |  |  |  |  | 89,931 | 213,989 | 58,070 |
Increase (decrease) in Cash and Cash Equivalents |  |  |  |  |  |  |  |  | (5,631) | 18,026 | (78,115) |
Cash and cash equivalents at beginning of period |  |  |  | 88,139 |  |  |  | 70,113 | 88,139 | 70,113 | 148,228 |
Cash and Cash Equivalents at End of Period | 82,508 |  |  |  | 88,139 |  |  |  | 82,508 | 88,139 | 70,113 | 82,508
Parent Company |  |  |  |  |  |  |  |  |  |  |  |
Operating Activities |  |  |  |  |  |  |  |  |  |  |  |
Net Income Available to Common Shareholders |  |  |  |  |  |  |  |  | 54,310 | 52,128 | 54,097 |
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |  |  |  |  |  |  |  |  |  |
Realized investment securities gains |  |  |  |  |  |  |  |  | (200) | 0 | 0 |
Deferred income tax expense |  |  |  |  |  |  |  |  | 1,347 | (241) | (148) |
Amortization and accretion |  |  |  |  |  |  |  |  | 0 | (5) | 0 |
Stock based compensation |  |  |  |  |  |  |  |  | 2,097 | 2,018 | 3 |
Depreciation |  |  |  |  |  |  |  |  | 1 | 1 | 1 |
Asset write down |  |  |  |  |  |  |  |  | 0 | 444 | 0 |
Change in other assets |  |  |  |  |  |  |  |  | (405) | 260 | 13,338 |
Change in other liabilities |  |  |  |  |  |  |  |  | (1,660) | (2,288) | 462 |
Equity In Undistributed Earnings Of Subsidiaries |  |  |  |  |  |  |  |  | (25,199) | (44,752) | (6,118) |
Net Cash Provided by Operating Activities |  |  |  |  |  |  |  |  | 30,291 | 7,565 | 61,635 |
Investing Activities |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from sales of available for sale securities |  |  |  |  |  |  |  |  | 200 | 0 | 0 |
Net Cash Provided by Investing Activities |  |  |  |  |  |  |  |  | 200 | 0 | 0 |
Financing Activities |  |  |  |  |  |  |  |  |  |  |  |
Dividends paid |  |  |  |  |  |  |  |  | (27,120) | (25,718) | (25,304) |
Issuance of common stock |  |  |  |  |  |  |  |  | 28,408 | 6,864 | 0 |
Purchases of treasury stock |  |  |  |  |  |  |  |  | 0 | (10,018) | (7,055) |
Exercise of stock options |  |  |  |  |  |  |  |  | 732 | 1,155 | 2,979 |
Proceeds from exercise of warrants |  |  |  |  |  |  |  |  | 0 | 0 | 1,896 |
Net Cash Provided by (Used in) Financing Activities |  |  |  |  |  |  |  |  | 2,020 | (27,717) | (27,484) |
Increase (decrease) in Cash and Cash Equivalents |  |  |  |  |  |  |  |  | 32,511 | (20,152) | 34,151 |
Cash and cash equivalents at beginning of period |  |  |  | $ 26,520 |  |  |  | $ 46,672 | 26,520 | 46,672 | 12,521 |
Cash and Cash Equivalents at End of Period | $ 59,031 |  |  |  | $ 26,520 |  |  |  | $ 59,031 | $ 26,520 | $ 46,672 | $ 59,031

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