Regulatory Requirements And Capital Ratios (Tables)

12 Months Ended

Dec. 31, 2017

Regulatory Capital Requirements [Abstract]

Schedule Of Capital Amounts And Ratios

December 31, 2017	Actual				Minimum Required - Basel III Phase-In Schedule				Minimum Required - Basel III Fully Phased-In (*)				Required to be Considered Well Capitalized
	Capital Amount		Ratio		Capital Amount		Ratio		Capital Amount		Ratio		Capital Amount		Ratio
CET 1 Capital
City Holding Company	$	430,154	15.1	%	$	163,441	5.75	%	$	198,972	7.0	%	$	184,760	6.5	%
City National Bank	338,105		12.0	%	162,164		5.75	%	197,418		7.0	%	183,316		6.5	%
Tier 1 Capital
City Holding Company	446,154		15.7	%	206,078		7.25	%	241,609		8.5	%	227,397		8.0	%
City National Bank	338,105		12.0	%	204,468		7.25	%	239,721		8.5	%	225,620		8.0	%
Total Capital
City Holding Company	465,292		16.4	%	262,927		9.25	%	298,458		10.5	%	284,246		10.0	%
City National Bank	357,243		12.7	%	260,873		9.25	%	296,126		10.5	%	282,025		10.0	%
Tier 1 Leverage Ratio
City Holding Company	446,154		11.0	%	161,834		4.00	%	161,834		4.0	%	202,293		5.0	%
City National Bank	338,105		8.5	%	159,625		4.00	%	159,625		4.0	%	199,531		5.0	%
(*) Represents the minimum required capital levels as of January 1, 2019 when Basel III Capital Rules have been fully phased in.

December 31, 2016:	Actual				Minimum Required - Basel III Phase-In Schedule				Minimum Required - Basel III Fully Phased-In (*)				Required to be Considered Well Capitalized
	Capital Amount		Ratio		Capital Amount		Ratio		Capital Amount		Ratio		Capital Amount		Ratio
CET 1 Capital
City Holding Company	$	371,677	13.3	%	$	142,845	5.125	%	$	195,105	7.0	%	$	181,169	6.5	%
City National Bank	310,912		11.2	%	141,860		5.125	%	193,761		7.0	%	179,921		6.5	%
Tier 1 Capital
City Holding Company	387,677		13.9	%	184,653		6.625	%	236,913		8.5	%	222,977		8.0	%
City National Bank	318,872		11.5	%	183,381		6.625	%	235,281		8.5	%	221,441		8.0	%
Total Capital
City Holding Company	408,406		14.7	%	240,397		8.625	%	292,658		10.5	%	278,722		10.0	%
City National Bank	338,675		12.2	%	238,741		8.625	%	290,641		10.5	%	276,801		10.0	%
Tier 1 Leverage Ratio
City Holding Company	387,677		10.1	%	153,864		4.000	%	153,864		4.0	%	192,330		5.0	%
City National Bank	318,872		8.3	%	153,088		4.000	%	153,088		4.0	%	191,359		5.0	%
(*) Represents the minimum required capital levels as of January 1, 2019 when Basel III Capital Rules have been fully phased in.