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City Holding Company (Parent Company Only) Financial Information (Condensed Statements Of Comprehensive Income) (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |
Investment securities gains | $ 0 | $ 2,668 | $ 845 | $ 0 | $ 0 | $ 0 | $ 2,116 | $ 14 |  |  |
Interest expense | 3,504 | 3,268 | 3,264 | 3,169 | 3,010 | 2,910 | 2,937 | 2,973 | $ 13,207 | $ 11,830 | $ 11,960
Income tax benefit | 6,338 | 6,577 | 6,303 | 5,866 | 5,793 | 5,129 | 6,125 | 11,367 | 25,083 | 28,414 | 24,271
Net income available to common shareholders | $ 14,656 | $ 13,232 | $ 12,541 | $ 11,702 | $ 13,515 | $ 10,607 | $ 11,983 | $ 17,992 | 52,128 | 54,097 | 52,962
Total Comprehensive Income |  |  |  |  |  |  |  |  | 48,948 | 54,424 | 53,793
Parent Company |  |  |  |  |  |  |  |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |
Dividends from subsidiaries |  |  |  |  |  |  |  |  | 8,600 | 48,950 | 46,050
Investment securities gains |  |  |  |  |  |  |  |  | 0 | 0 | 1,130
Other income |  |  |  |  |  |  |  |  | 320 | 22 | 65
Income |  |  |  |  |  |  |  |  | 8,920 | 48,972 | 47,245
Interest expense |  |  |  |  |  |  |  |  | 683 | 618 | 605
Other expenses |  |  |  |  |  |  |  |  | 1,957 | 1,170 | 849
Expenses |  |  |  |  |  |  |  |  | 2,640 | 1,788 | 1,454
Income Before Income Tax Benefit and Equity in Undistributed Net Income of Subsidiaries |  |  |  |  |  |  |  |  | 6,280 | 47,184 | 45,791
Income tax benefit |  |  |  |  |  |  |  |  | (1,096) | (795) | (231)
Income Before Equity in Undistributed Net Income of Subsidiaries |  |  |  |  |  |  |  |  | 7,376 | 47,979 | 46,022
Equity in undistributed net income of subsidiaries |  |  |  |  |  |  |  |  | 44,752 | 6,118 | 6,940
Net income available to common shareholders |  |  |  |  |  |  |  |  | 52,128 | 54,097 | 52,962
Total Comprehensive Income |  |  |  |  |  |  |  |  | $ 48,948 | $ 54,424 | $ 53,793

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- Definition Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Other Comprehensive Income -URI http://asc.fasb.org/extlink&oid=51831270 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Comprehensive Income -URI http://asc.fasb.org/extlink&oid=51831223 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e557-108580 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Net Income -URI http://asc.fasb.org/extlink&oid=51831255 + Details
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