CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Interest Income
Loans and leases	$ 184,032	$ 169,696
Securities	42,072	41,576
Due from banks - interest-bearing	136	443
Federal funds sold and securities purchased under resale agreements	1,241	1,370
Total interest income	227,481	213,085
Interest Expense
Deposits	1,920	2,134
Federal funds purchased and securities sold under repurchase agreements	71
Subordinated debt	3,746	6,104
Other long-term debt	5,164	5,049
Total interest expense	10,901	13,287
Net interest income	216,580	199,798
Provision for losses on covered loans	497	4,655
Net interest income after provision	216,083	195,143
Noninterest Income
Trust and investment fees	55,521	53,306
Brokerage and mutual fund fees	10,598	10,042
Cash management and deposit transaction charges	12,633	12,033
International services	10,668	10,395
FDIC loss sharing expense, net	(6,688)	(7,083)
Gain on disposal of assets	110	2,826
Gain on sale of securities	3,376	2,122
Other	24,922	17,607
Impairment loss on securities:
Total other-than-temporary impairment loss on securities	(293)
Less: Portion of loss recognized in other comprehensive income	228	0
Net impairment loss recognized in earnings	(65)	0
Total noninterest income	111,075	101,248
Noninterest Expense
Salaries and employee benefits	144,568	136,833
Net occupancy of premises	16,073	16,094
Legal and professional fees	16,938	12,950
Information services	9,860	9,346
Depreciation and amortization	14,982	7,828
Amortization of intangibles	1,377	1,487
Marketing and advertising	8,830	9,775
Office services and equipment	5,136	4,910
Other real estate owned	2,731	1,433
FDIC assessments	5,094	1,391
Other operating	8,853	8,805
Total noninterest expense	234,442	210,852
Income before income taxes	92,716	85,539
Income taxes	30,597	31,010
Net income	62,119	54,529
Less: Net income attributable to noncontrolling interest	553	699
Net income attributable to City National Corporation	61,566	53,830
Less: Dividends on preferred stock	4,094	4,094
Net income available to common shareholders	$ 57,472	$ 49,736
Net income per common share, basic (in dollars per share)	$ 1.03	$ 0.90
Net income per common share, diluted (in dollars per share)	$ 1.01	$ 0.89
Weighted-average common shares outstanding, basic (in shares)	55,422	54,689
Weighted-average common shares outstanding, diluted (in shares)	56,306	55,429
Dividends per common share (in dollars per share)	$ 0.35	$ 0.33