City National 10-Q 7 Nov 14 2014 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	9 Months Ended
	Sep. 30, 2014	Oct. 31, 2014
Document and Entity Information	'	'
Entity Registrant Name	'CITY NATIONAL CORP	'
Entity Central Index Key	'0000201461	'
Document Type	'10-Q	'
Document Period End Date	30-Sep-14	'
Amendment Flag	'false	'
Current Fiscal Year End Date	'--12-31	'
Entity Current Reporting Status	'Yes	'
Entity Filer Category	'Large Accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	55,114,531
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q3	'

CONSOLIDATED_BALANCE_SHEETS

CONSOLIDATED BALANCE SHEETS (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Assets	'	'
Cash and due from banks	$503,647	$183,227
Due from banks - interest-bearing	625,183	552,719
Federal funds sold and securities purchased under resale agreements	200,000	200,000
Securities available-for-sale - cost $5,641,894 and $6,267,691 at September 30, 2014 and December 31, 2013, respectively:	'	'
Securities pledged as collateral	11,684	12,376
Held in portfolio	5,617,492	6,228,741
Securities held-to-maturity - fair value $3,461,988 and $2,883,935 at September 30, 2014 and December 31, 2013, respectively:	'	'
Securities pledged as collateral	528,916	'
Held in portfolio	2,921,635	2,957,843
Trading securities	125,910	82,357
Loans and leases, excluding covered loans	19,347,988	17,170,438
Less: Allowance for loan and lease losses	312,703	302,584
Loans and leases, excluding covered loans, net	19,035,285	16,867,854
Covered loans, net of allowance for loan losses	543,347	700,989
Net loans and leases	19,578,632	17,568,843
Premises and equipment, net	208,711	198,398
Deferred tax asset	215,951	217,990
Goodwill	635,868	642,622
Customer-relationship intangibles, net	36,255	40,621
Affordable housing investments	203,208	188,207
Customers' acceptance liability	2,137	10,521
Other real estate owned ($14,487 and $25,481 covered by FDIC loss share at September 30, 2014 and December 31, 2013, respectively)	24,602	38,092
FDIC indemnification asset	59,917	89,227
Other assets	515,852	506,167
Total assets	32,015,600	29,717,951
Liabilities	'	'
Demand deposits	17,827,649	16,058,968
Interest checking deposits	2,520,761	2,467,890
Money market deposits	6,540,000	6,022,457
Savings deposits	473,150	441,521
Time deposits-under $100,000	162,522	176,488
Time deposits-$100,000 and over	431,898	512,113
Total deposits	27,955,980	25,679,437
Short-term borrowings	4,635	3,889
Long-term debt	631,434	735,968
Reserve for off-balance sheet credit commitments	25,910	33,944
Acceptances outstanding	2,137	10,521
Other liabilities	448,853	473,438
Total liabilities	29,068,949	26,937,197
Redeemable noncontrolling interest	47,222	39,768
Commitments and contingencies	'	'
Shareholders' equity	'	'
Preferred stock, par value $1.00 per share; 5,000,000 shares authorized; 275,000 shares issued at September 30, 2014 and December 31, 2013	267,616	267,616
Common stock, par value $1.00 per share; 75,000,000 shares authorized; 55,057,737 and 54,667,295 shares issued at September 30, 2014 and December 31, 2013, respectively	55,058	54,667
Additional paid-in capital	565,822	541,210
Accumulated other comprehensive loss	-7,592	-15,641
Retained earnings	2,040,868	1,918,163
Treasury shares, at cost - 378,456 and 483,523 shares at September 30, 2014 and December 31, 2013, respectively	-22,343	-25,029
Total common shareholders' equity	2,631,813	2,473,370
Total shareholders' equity	2,899,429	2,740,986
Total liabilities and shareholders' equity	$32,015,600	$29,717,951

CONSOLIDATED_BALANCE_SHEETS_Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, except Share data, unless otherwise specified
CONSOLIDATED BALANCE SHEETS	'	'
Securities available-for-sale, cost (in dollars)	$5,641,894	$6,267,691
Securities held-to-maturity, fair value (in dollars)	3,461,988	2,883,935
Other real estate owned, covered by FDIC loss share (in dollars)	$14,487	$25,481
Preferred stock, par value (in dollars per share)	$1	$1
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	275,000	275,000
Common stock, par value (in dollars per share)	$1	$1
Common stock, shares authorized	75,000,000	75,000,000
Common stock, shares issued	55,057,737	54,667,295
Treasury shares	378,456	483,523

CONSOLIDATED_STATEMENTS_OF_INC

CONSOLIDATED STATEMENTS OF INCOME (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Interest income	'	'	'	'
Loans and leases	$181,647	$186,049	$538,343	$530,398
Securities	43,863	40,078	128,910	125,563
Due from banks - interest-bearing	363	403	1,183	674
Federal funds sold and securities purchased under resale agreements	1,721	1,563	4,568	4,253
Total interest income	227,594	228,093	673,004	660,888
Interest expense	'	'	'	'
Deposits	2,033	2,927	6,227	8,856
Federal funds purchased and securities sold under repurchase agreements	'	1	'	401
Subordinated debt	4,722	6,129	16,943	18,352
Other long-term debt	5,063	4,765	15,158	14,467
Other short-term borrowings	'	'	'	549
Total interest expense	11,818	13,822	38,328	42,625
Net interest income	215,776	214,271	634,676	618,263
(Reversal of) provision for credit losses on loans and leases, excluding covered loans	-8,000	'	-9,000	'
Provision for losses on covered loans	589	2,496	3,783	461
Net interest income after provision	223,187	211,775	639,893	617,802
Noninterest income	'	'	'	'
Trust and investment fees	56,834	49,430	164,739	145,913
Brokerage and mutual fund fees	11,021	7,307	35,303	23,480
Cash management and deposit transaction charges	12,200	12,263	36,361	38,152
International services	12,233	10,932	34,111	31,462
FDIC loss sharing expense, net	-9,606	-20,992	-40,850	-51,821
Gain on disposal of assets	2,985	3,092	12,649	5,155
Gain on sale of securities	14	5,788	7,503	12,624
Other	22,311	21,207	60,771	59,981
Impairment loss on securities:	'	'	'	'
Total other-than-temporary impairment loss on securities	-318	-144	-566	-326
Less: Portion of loss recognized in other comprehensive income	243	'	243	'
Net impairment loss recognized in earnings	-75	-144	-323	-326
Total noninterest income	107,917	88,883	310,264	264,620
Noninterest expense	'	'	'	'
Salaries and employee benefits	142,210	129,049	417,902	384,412
Net occupancy of premises	15,862	16,074	48,551	48,268
Legal and professional fees	14,350	10,731	45,693	36,197
Information services	10,260	9,876	29,069	28,450
Depreciation and amortization	8,276	7,827	23,989	24,248
Amortization of intangibles	1,426	1,932	4,367	5,795
Marketing and advertising	7,576	7,887	26,333	24,156
Office services and equipment	5,038	4,821	15,235	14,801
Other real estate owned	2,360	5,196	6,165	14,831
FDIC assessments	4,629	3,776	8,785	12,920
Other operating	15,215	12,195	41,628	38,055
Total noninterest expense	227,202	209,364	667,717	632,133
Income before income taxes	103,902	91,294	282,440	250,289
Income taxes	34,404	27,052	90,521	73,735
Net income	69,498	64,242	191,919	176,554
Less: Net income attributable to noncontrolling interest	847	609	2,056	1,657
Net income attributable to City National Corporation	68,651	63,633	189,863	174,897
Less: Dividends on preferred stock	4,093	2,407	12,281	7,219
Net income available to common shareholders	$64,558	$61,226	$177,582	$167,678
Net income per common share, basic (in dollars per share)	$1.16	$1.12	$3.20	$3.07
Net income per common share, diluted (in dollars per share)	$1.15	$1.10	$3.16	$3.04
Weighted average common shares outstanding, basic (in shares)	55,031	54,274	54,893	54,039
Weighted average common shares outstanding, diluted (in shares)	55,765	54,820	55,616	54,464
Dividends per common share (in dollars per share)	$0.33	$0.25	$0.99	$0.50

CONSOLIDATED_STATEMENTS_OF_COM

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME	'	'	'	'
Net income	$69,498	$64,242	$191,919	$176,554
Securities available-for-sale:	'	'	'	'
Net unrealized (losses) gains arising during the period	-9,547	-13,573	12,586	-90,215
Reclassification adjustment for net gains included in net income	-4	-3,367	-4,396	-6,666
Non-credit related impairment loss	-141	'	-141	'
Net change on cash flow hedges	'	'	'	-56
Total other comprehensive (loss) income	-9,692	-16,940	8,049	-96,937
Comprehensive income	59,806	47,302	199,968	79,617
Less: Comprehensive income attributable to noncontrolling interest	847	609	2,056	1,657
Comprehensive income attributable to City National Corporation	$58,959	$46,693	$197,912	$77,960

CONSOLIDATED_STATEMENTS_OF_CAS

CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Cash Flows From Operating Activities	'	'	'	'
Net income	$69,498	$64,242	$191,919	$176,554
Adjustments to net income:	'	'	'	'
(Reversal of) provision for credit losses on loans and leases, excluding covered loans	-8,000	'	-9,000	'
Provision for losses on covered loans	589	2,496	3,783	461
Amortization of intangibles	1,426	1,932	4,367	5,795
Depreciation and amortization	8,276	7,827	23,989	24,248
Share-based employee compensation expense	'	'	16,116	16,283
Deferred income tax benefit	'	'	-3,758	-1,888
Gain on disposal of assets	-2,985	-3,092	-12,649	-5,155
Gain on sale of securities	-14	-5,788	-7,503	-12,624
Impairment loss on securities	75	144	323	326
Other, net	'	'	21,706	24,759
Net change in:	'	'	'	'
Trading securities	'	'	-43,608	64,772
Other assets and other liabilities, net	'	'	-44,477	81,814
Net cash provided by operating activities	'	'	141,208	375,345
Cash Flows From Investing Activities	'	'	'	'
Purchase of securities available-for-sale	'	'	-1,537,655	-1,775,702
Sales of securities available-for-sale	1,000	584,700	627,102	1,835,775
Maturities and paydowns of securities available-for-sale	'	'	1,527,117	2,064,288
Purchase of securities held-to-maturity	'	'	-615,295	-277,199
Maturities and paydowns of securities held-to-maturity	'	'	119,727	23,826
Loan originations, net of principal collections	'	'	-1,970,596	-1,436,714
Net payments for premises and equipment	'	'	-34,446	-43,415
Proceeds from sale of business	'	'	7,053	'
Other investing activities, net	'	'	13,976	48,429
Net cash (used in) provided by investing activities	'	'	-1,863,017	439,288
Cash Flows From Financing Activities	'	'	'	'
Net increase in deposits	'	'	2,276,543	1,734,514
Net decrease in federal funds purchased	'	'	'	-1,214,200
Issuance of long-term debt	'	'	31,759	35,289
Repayment of long-term debt	'	'	-135,473	-231,382
Proceeds from exercise of stock options	'	'	21,734	24,963
Tax benefit from exercise of stock options	'	'	4,022	3,749
Cash dividends paid	'	'	-66,624	-34,355
Other financing activities, net	'	'	-17,268	-1,902
Net cash provided by financing activities	'	'	2,114,693	316,676
Net increase in cash and cash equivalents	'	'	392,884	1,131,309
Cash and cash equivalents at beginning of year	'	'	935,946	415,405
Cash and cash equivalents at end of period	1,328,830	1,546,714	1,328,830	1,546,714
Cash paid during the period for:	'	'	'	'
Interest	'	'	48,019	56,100
Income taxes	'	'	102,757	11,478
Non-cash investing activities:	'	'	'	'
Transfer of loans to other real estate owned	'	'	$11,364	$18,637

CONSOLIDATED_STATEMENTS_OF_CHA

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (USD $)		Total	Preferred stock	Common stock	Additional paid-in capital	Accumulated other comprehensive income (loss)	Retained earnings	Treasury shares
In Thousands, except Share data, unless otherwise specified
Balance at Dec. 31, 2012		$2,505,318	$169,920	$53,886	$490,339	$86,582	$1,738,957	($34,366)
Balance (in shares) at Dec. 31, 2012		'	'	53,885,886	'	'	'	'
Increase (Decrease) in Stockholders' Equity		'	'	'	'	'	'	'
Net income	[1]	174,897	'	'	'	'	174,897	'
Other comprehensive income (loss), net of tax		-96,937	'	'	'	-96,937	'	'
Issuance of shares under share-based compensation plans		21,546	'	514	11,742	'	'	9,290
Issuance of shares under share-based compensation plans (in shares)		'	'	514,161	'	'	'	'
Share-based employee compensation expense		13,241	'	'	13,241	'	'	'
Tax benefit from share-based compensation plans		3,646	'	'	3,646	'	'	'
Dividends: Preferred		-7,219	'	'	'	'	-7,219	'
Dividends: Common		-27,395	'	'	'	'	-27,395	'
Net change in deferred compensation plans		772	'	'	773	'	'	-1
Change in redeemable noncontrolling interest		19	'	'	19	'	'	'
Balance at Sep. 30, 2013		2,587,888	169,920	54,400	519,760	-10,355	1,879,240	-25,077
Balance (in shares) at Sep. 30, 2013		'	'	54,400,047	'	'	'	'
Balance at Dec. 31, 2013		2,740,986	267,616	54,667	541,210	-15,641	1,918,163	-25,029
Balance (in shares) at Dec. 31, 2013		'	'	54,667,295	'	'	'	'
Increase (Decrease) in Stockholders' Equity		'	'	'	'	'	'	'
Net income	[1]	189,863	'	'	'	'	189,863	'
Other comprehensive income (loss), net of tax		8,049	'	'	'	8,049	'	'
Issuance of shares under share-based compensation plans		17,481	'	391	14,402	'	'	2,688
Issuance of shares under share-based compensation plans (in shares)		'	'	390,442	'	'	'	'
Share-based employee compensation expense		13,305	'	'	13,305	'	'	'
Tax benefit from share-based compensation plans		4,188	'	'	4,188	'	'	'
Dividends: Preferred		-12,281	'	'	'	'	-12,281	'
Dividends: Common		-54,877	'	'	'	'	-54,877	'
Net change in deferred compensation plans		882	'	'	884	'	'	-2
Change in redeemable noncontrolling interest		-8,167	'	'	-8,167	'	'	'
Balance at Sep. 30, 2014		$2,899,429	$267,616	$55,058	$565,822	($7,592)	$2,040,868	($22,343)
Balance (in shares) at Sep. 30, 2014		'	'	55,057,737	'	'	'	'
[1]	Net income excludes net income attributable to redeemable noncontrolling interest of $2,056 and $1,657 for the nine month periods ended September 30, 2014 and 2013, respectively. Redeemable noncontrolling interest is reflected in the mezzanine section of the consolidated balance sheets. See Note 17 of the Notes to the Unaudited Consolidated Financial Statements.

CONSOLIDATED_STATEMENTS_OF_CHA1

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Parenthetical) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY	'	'
Net income attributable to redeemable noncontrolling interest	$2,056	$1,657

Summary_of_Significant_Account

Summary of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2014
Summary of Significant Accounting Policies	'
Summary of Significant Accounting Policies	'
	Note 1. Summary of Significant Accounting Policies
	Organization
	City National Corporation (the “Corporation”) is the holding company for City National Bank (the “Bank”). The Bank delivers banking, trust and investment services through 77 offices in Southern California, the San Francisco Bay area, Nevada, New York City, Nashville, Tennessee and Atlanta, Georgia. As of September 30, 2014, the Corporation had four consolidated investment advisory affiliates and one unconsolidated subsidiary, Business Bancorp Capital Trust I. Because the Bank comprises substantially all of the business of the Corporation, references to the “Company” mean the Corporation and the Bank together. The Corporation is approved as a financial holding company pursuant to the Gramm-Leach-Bliley Act of 1999.
	Consolidation
	The consolidated financial statements of the Company include the accounts of the Corporation, its non-bank subsidiaries, the Bank and the Bank’s wholly owned subsidiaries, after the elimination of all material intercompany transactions. It also includes noncontrolling interest, which is the portion of equity in a subsidiary not attributable to a parent. Redeemable noncontrolling interests are noncontrolling ownership interests that are redeemable at the option of the holder or outside the control of the issuer. The redeemable noncontrolling interests of third parties in the Corporation’s investment advisory affiliates are not considered to be permanent equity and are reflected in the mezzanine section between liabilities and equity in the consolidated balance sheets. Noncontrolling interests’ share of subsidiary earnings is reflected as Net income attributable to noncontrolling interest in the consolidated statements of income.
	The Company’s investment management and wealth advisory affiliates are organized as limited liability companies. The Corporation generally owns a majority position in each affiliate and certain management members of each affiliate own the remaining shares. The Corporation has contractual arrangements with its affiliates whereby a percentage of revenue is allocable to fund affiliate operating expenses (“operating share”) while the remaining portion of revenue (“distributable revenue”) is allocable to the Corporation and the noncontrolling owners. All majority-owned affiliates that meet the prescribed criteria for consolidation are consolidated. The Corporation’s interests in investment management affiliates in which it holds a noncontrolling share are accounted for using the equity method. Additionally, the Company has various interests in variable interest entities (“VIEs”) that are not required to be consolidated. See Note 16 for a more detailed discussion on VIEs.
	Use of Estimates
	The Company’s accounting and reporting policies conform to generally accepted accounting principles (“GAAP”) and practices in the financial services industry. To prepare the financial statements in conformity with GAAP, management must make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements, and income and expenses during the reporting period. Circumstances and events that differ significantly from those underlying the Company’s estimates and assumptions could cause actual financial results to differ from those estimates. The material estimates included in the financial statements relate to the allowance for loan and lease losses, the reserve for off-balance sheet credit commitments, other real estate owned (“OREO”), valuation of share-based compensation awards, income taxes, goodwill and intangible asset impairment, securities impairment, private equity and alternative investment impairment, valuation of assets and liabilities acquired in business combinations, including contingent consideration liabilities, subsequent valuations of acquired impaired loans, Federal Deposit Insurance Corporation (“FDIC”) indemnification asset, valuation of noncontrolling interest, and the valuation of financial assets and liabilities reported at fair value.
	The Company has applied its critical accounting policies and estimation methods consistently in all periods presented in these financial statements. The Company’s estimates and assumptions are expected to change as changes in market conditions and the Company’s portfolio occur in subsequent periods.
	Basis of Presentation
	The Company is on the accrual basis of accounting for income and expenses. The results of operations reflect any adjustments, all of which are of a normal recurring nature, unless otherwise disclosed in this Form 10-Q, and which, in the opinion of management, are necessary for a fair presentation of the results for the periods presented. In accordance with the usual practice of banks, assets and liabilities of individual trust, agency and fiduciary funds have not been included in the financial statements. These unaudited consolidated financial statements should be read in conjunction with the audited consolidated financial statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2013.
	The results for the 2014 interim periods are not necessarily indicative of the results expected for the full year. The Company has not made any significant changes in its critical accounting policies or in its estimates and assumptions from those disclosed in its 2013 Annual Report other than the adoption of new accounting pronouncements and other authoritative guidance that became effective for the Company on or after January 1, 2014. Refer to Accounting Pronouncements for discussion of accounting pronouncements adopted in 2014.
	Certain prior period amounts have been reclassified to conform to the current period presentation.
	Accounting Pronouncements
	The following is a summary of accounting pronouncements that became effective during the nine months ended September 30, 2014:
	·         In February 2013, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2013-04, Liabilities (Topic 405): Obligations Resulting from Joint and Several Liability Arrangements for Which the Total Amount of the Obligation is Fixed at the Reporting Date (“ASU 2013-04”). ASU 2013-04 provides guidance for the recognition, measurement and disclosure of obligations resulting from joint and several liability arrangements. Examples of obligations within the scope of the ASU include debt arrangements, other contractual obligations and settled litigation. ASU 2013-04 requires entities to measure obligations resulting from joint and several liability arrangements for which the total amount of the obligation within the scope of the guidance is fixed at the reporting date, as the sum of (1) the amount the reporting entity agreed to pay on the basis of its arrangement among its co-obligors, and (2) any additional amount the reporting entity expects to pay on behalf of its co-obligors. Required disclosures include a description of the joint-and-several arrangement and the total outstanding amount of the obligation for all joint parties. Adoption of the new guidance on January 1, 2014 did not have a significant impact on the Company’s consolidated financial statements.
	·         In July 2013, the FASB issued ASU 2013-11, Income Taxes (Topic 740): Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists. The new guidance requires an entity to present liabilities for unrecognized tax benefits in the statement of financial position as a reduction to a deferred tax asset for a net operating loss carryforward or a tax credit carryforward, except as follows: (1) to the extent a net operating loss carryforward or tax credit carryforward is not available at the reporting date under the tax law of the applicable jurisdiction to settle any additional income taxes that would result from the disallowance of a tax position, or (2) the tax law of the applicable jurisdiction does not require the entity to use and the entity does not intend to use the deferred tax asset for such purpose. In these situations, the unrecognized tax benefit should be presented in the balance sheet as a liability and should not be combined with deferred tax assets. Adoption of the new guidance on January 1, 2014 did not have a significant impact on the Company’s consolidated financial statements.
	The following is a summary of recently issued accounting pronouncements:
	·         In January 2014, the FASB issued ASU 2014-01, Investments-Equity Method and Joint Ventures (Topic 323), Accounting for Investments in Qualified Affordable Housing Projects (“ASU 2014-01”). ASU 2014-01 permits an entity to make an accounting policy election to apply a proportionate amortization method to the low income housing tax credit investments if certain conditions are met. Under the proportionate amortization method, an investor amortizes the initial cost of the investment in proportion to the tax credits and other tax benefits received, and recognizes the amortization in the income statement as a component of income taxes attributable to continuing operations. The ASU becomes effective for the Company for annual periods, and interim periods within those annual periods, beginning after December 15, 2014. The provisions of ASU 2014-01 must be applied retrospectively to all periods presented. Early adoption is permitted. The Company is assessing the impact of the new guidance on its consolidated financial statements.
	·         In January 2014, the FASB issued ASU 2014-04, Receivables-Troubled Debt Restructurings by Creditors (Subtopic 310-40), Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure (“ASU 2014-04”). ASU 2014-04 requires entities to reclassify consumer mortgage loans collateralized by residential real estate to OREO when either (1) the creditor obtains legal title to the residential real estate property or (2) the borrower conveys all interest in the property to the creditor to satisfy the loan by completing a deed in lieu of foreclosure or similar agreement. The ASU becomes effective for the Company for annual periods, and interim periods within those annual periods, beginning after December 15, 2014. Entities will have the option of adopting the guidance using either a modified retrospective transition method or a prospective transition method. Early adoption is permitted. Adoption of the new guidance is not expected to have a significant impact on the Company’s consolidated financial statements.
	·         In April 2014, the FASB issued ASU 2014-08, Presentation of Financial Statements (Topic 205) and Property, Plant and Equipment (Topic 360): Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity (“ASU 2014-08”). ASU 2014-08 raises the threshold for a disposal to qualify as a discontinued operation and requires new disclosures of both discontinued operations and certain other disposals that do not meet the definition of a discontinued operation. Under the revised standard, a discontinued operation is (1) a component of an entity or group of components that has been disposed of by sale, disposed of other than by sale or is classified as held for sale that represents a strategic shift that has or will have a major effect on an entity’s operations and financial results or (2) an acquired business or nonprofit activity that is classified as held for sale on the date of the acquisition. ASU 2014-08 is effective for annual periods beginning on or after December 15, 2014, and interim periods therein. The new guidance will be applied prospectively. Early adoption is permitted. Adoption of the new guidance is not expected to have a significant impact on the Company’s consolidated financial statements.
	·         In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers: Topic 606 (“ASU 2014-09”). The standard outlines a single comprehensive model for entities to use in accounting for revenue arising from contracts with customers and supersedes most current revenue recognition guidance, including industry-specific guidance. The ASU outlines a five-step process for applying the new revenue model and expands required disclosures on revenue recognition. The ASU is effective for annual reporting periods, and interim reporting periods within those periods, beginning after December 15, 2016. Entities have the option of using either a full or modified retrospective approach for adoption. Early application is not permitted. The Company is assessing the impact of the new guidance on its consolidated financial statements.
	·         In June 2014, the FASB issued ASU 2014-11, Transfers and Servicing (Topic 860), Repurchase-to-Maturity Transactions, Repurchase Financings, and Disclosures (“ASU 2014-11”). ASU 2014-11 aligns the accounting for repurchase-to-maturity transactions and repurchase agreements executed as a repurchase financing with the accounting for other repurchase agreements. Going forward, these transactions will all be accounted for as secured borrowings. Under the new guidance, parties to a repurchase financing transaction will be required to separately account for the initial transfer of the financial asset and the related repurchase agreement. The initial transfer of the financial asset would be accounted for as a sale by the transferor only if all criteria for derecognition have been met. ASU 2014-11 requires new or expanded disclosures for repurchase agreements and similar transactions accounted for as secured borrowings. The ASU becomes effective for the Company for the first interim or annual period beginning after December 15, 2014. Adoption of the new guidance is not expected to have a significant impact on the Company’s consolidated financial statements.
	·         In August 2014, the FASB issued ASU 2014-15, Presentation of Financial Statements — Going Concern (Subtopic 205-40): Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern (“ASU 2014-15”). ASU 2014-15 incorporates into U.S. GAAP a requirement that management complete a going concern evaluation similar to that performed by an entity’s external auditor. Under the new guidance, management will be required to perform interim and annual assessments of an entity’s ability to continue as a going concern within one year of the date of issuance of the entity’s financial statements. Further, an entity must provide certain disclosures if there is substantial doubt about the entity’s ability to continue as a going concern. ASU 2014-15 is effective for annual periods ending after December 15, 2016, and interim periods thereafter. Adoption of the new guidance is not expected to have a significant impact on the Company’s consolidated financial statements.

Fair_Value_Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2014
Fair Value Measurements	'
Fair Value Measurements	'
	Note 2. Fair Value Measurements
	The following tables summarize assets and liabilities measured at fair value as of September 30, 2014 and December 31, 2013 by level in the fair value hierarchy:
					Fair Value Measurements at Reporting Date Using
	(in thousands)	Balance as of			Quoted Prices in			Significant Other			Significant
		September 30,			Active Markets			Observable			Unobservable
		2014			Level 1			Inputs			Inputs
								Level 2			Level 3
	Measured on a Recurring Basis
	Assets
	Securities available-for-sale:
	U.S. Treasury	$	46,765		$	46,765		$	—		$	—
	Federal agency - Debt	1,326,728			—			1,326,728			—
	Federal agency - MBS	106,976			—			106,976			—
	CMOs - Federal agency	3,559,078			—			3,559,078			—
	CMOs - Non-agency	25,282			—			25,282			—
	State and municipal	381,993			—			378,469			3,524
	Other debt securities	177,042			—			177,042			—
	Equity securities and mutual funds	5,312			5,312			—			—
	Trading securities	125,910			122,145			3,765			—
	Derivative assets (1)	39,580			4,814			34,086			680
	Contingent consideration asset (1)	2,930			—			—			2,930
	Total assets at fair value	$	5,797,596		$	179,036		$	5,611,426		$	7,134
	Liabilities
	Derivative liabilities	$	39,463		$	5,735		$	33,728		$	—
	Contingent consideration liability	34,493			—			—			34,493
	FDIC clawback liability	14,524			—			—			14,524
	Other liabilities	901			—			901			—
	Total liabilities at fair value (2)	$	89,381		$	5,735		$	34,629		$	49,017
	Redeemable noncontrolling interest	$	47,222		$	—		$	—		$	47,222
	Measured on a Nonrecurring Basis
	Assets
	Other real estate owned (3)	$	8,101		$	—		$	—		$	8,101
	Total assets at fair value	$	8,101		$	—		$	—		$	8,101
	(1)     Reported in Other assets in the consolidated balance sheets.
	(2)     Reported in Other liabilities in the consolidated balance sheets.
	(3)     Includes covered OREO.
					Fair Value Measurements at Reporting Date Using
	(in thousands)	Balance as of			Quoted Prices in			Significant Other			Significant
		December 31,			Active Markets			Observable			Unobservable
		2013			Level 1			Inputs			Inputs
								Level 2			Level 3
	Measured on a Recurring Basis
	Assets
	Securities available-for-sale:
	U.S. Treasury	$	35,335		$	35,335		$	—		$	—
	Federal agency - Debt	1,410,536			—			1,410,536			—
	Federal agency - MBS	157,226			—			157,226			—
	CMOs - Federal agency	3,997,298			—			3,997,298			—
	CMOs - Non-agency	37,462			—			37,462			—
	State and municipal	415,995			—			412,362			3,633
	Other debt securities	178,822			—			178,822			—
	Equity securities and mutual funds	8,443			8,443			—			—
	Trading securities	82,357			80,659			1,698			—
	Derivative assets (1)	34,613			3,487			31,126			—
	Total assets at fair value	$	6,358,087		$	127,924		$	6,226,530		$	3,633
	Liabilities
	Derivative liabilities	$	32,970		$	3,333		$	29,637		$	—
	Contingent consideration liability	49,900			—			—			49,900
	FDIC clawback liability	11,967			—			—			11,967
	Other liabilities	1,044			—			1,044			—
	Total liabilities at fair value (2)	$	95,881		$	3,333		$	30,681		$	61,867
	Redeemable noncontrolling interest	$	39,768		$	—		$	—		$	39,768
	Measured on a Nonrecurring Basis
Assets
Collateral dependent impaired loans (3):
Commercial real estate mortgages	$	1,220		$	—		$	—		$	1,220
Residential mortgages	1,300			—			—			1,300
Other real estate owned (4)	18,251			—			—			18,251
Private equity and alternative investments	895			—			—			895
Total assets at fair value	$	21,666		$	—		$	—		$	21,666
(1)     Reported in Other assets in the consolidated balance sheets.
(2)     Reported in Other liabilities in the consolidated balance sheets.
(3)     Impaired loans for which fair value was calculated using the collateral valuation method.
(4)     Includes covered OREO.
At September 30, 2014, $5.80 billion, or approximately 18 percent, of the Company’s total assets were recorded at fair value on a recurring basis, compared with $6.36 billion, or 21 percent, at December 31, 2013. The majority of these financial assets were valued using Level 1 or Level 2 inputs. Less than one percent of total assets were measured using Level 3 inputs. At September 30, 2014, $89.4 million of the Company’s total liabilities were recorded at fair value using mostly Level 2 or Level 3 inputs, compared with $95.9 million at December 31, 2013. There were no transfers between Level 1 and Level 2 of the fair value hierarchy for assets or liabilities measured on a recurring basis during the nine months ended September 30, 2014. At September 30, 2014, $8.1 million of the Company’s total assets were recorded at fair value on a nonrecurring basis, compared with $21.7 million at December 31, 2013. These assets represent less than one percent of total assets and were measured using Level 3 inputs.
Recurring Fair Value Measurements
Assets and liabilities for which fair value measurement is based on significant unobservable inputs are classified as Level 3 in the fair value hierarchy. The following table provides a reconciliation of the beginning and ending balances for Level 3 assets and liabilities measured at fair value on a recurring basis for the nine months ended September 30, 2014 and 2013.
Level 3 Assets and Liabilities Measured on a Recurring Basis
	For the nine months ended
	September 30, 2014
(in thousands)	Securities			Contingent			Equity			Contingent			FDIC
	Available-for-			Consideration			Warrants			Consideration			Clawback
	Sale			Asset						Liability			Liability
Balance, beginning of period	$	3,633		$	—		$	—		$	(49,900	)	$	(11,967	)
Total realized/unrealized gains (losses):
Included in earnings	—			—			78			—			(2,557		)
Included in other comprehensive income	(9		)	—			—			—			—
Additions	—			2,930			631			—			—
Settlements	(100		)	—			(29		)	17,266			—
Other (1)	—			—			—			(1,859		)	—
Balance, end of period	$	3,524		$	2,930		$	680		$	(34,493	)	$	(14,524	)
	For the nine months ended
	September 30, 2013
(in thousands)	Securities			Contingent			FDIC
	Available-for-			Consideration			Clawback
	Sale			Liability			Liability
Balance, beginning of period	$	65,187		$	(47,724	)	$	(9,970	)
Total realized/unrealized gains (losses):
Included in earnings	—			—			(1,309		)
Included in other comprehensive income	(35		)	—			—
Settlements	(3,655		)	—			—
Other (1)	91			(1,626		)	—
Balance, end of period	$	61,588		$	(49,350	)	$	(11,279	)
(1)     Other rollforward activity consists of amortization of premiums and accretion of discounts recognized on the initial purchase of securities available-for-sale and accretion of discount and valuation adjustment related to the contingent consideration liability.
Redeemable noncontrolling interest is classified as Level 3 in the fair value hierarchy and measured on a recurring basis. Redeemable noncontrolling interest is valued based on a combination of factors, including but not limited to, observable valuation of firms similar to the affiliates, multiples of revenue or profit, unique investment products or performance track records, strength in the marketplace, projected discounted cash flow scenarios, strategic value of affiliates to other entities, as well as unique sources of value specific to an individual firm. The methodology used to fair value these interests is consistent with the industry practice of valuing similar types of instruments. Refer to Note 17, Noncontrolling Interest, for a rollforward of activity for the nine months ended September 30, 2014 and 2013.
Level 3 assets measured at fair value on a recurring basis include municipal auction rate securities that are classified in securities available-for-sale, a contingent consideration asset and equity warrants. Municipal auction rate securities were valued using an average yield on California variable rate notes that were comparable in credit rating and maturity to the securities held, plus a liquidity premium. The contingent consideration asset represents the fair value of future payments to be received on the sale of the Company’s retirement services business. The fair value of contingent consideration was determined by discounting the expected future cash flows using a bond rate for an investment grade finance company. Equity warrants in private companies obtained in association with certain loan transactions are classified as derivative assets and are measured at fair value on a recurring basis. The Black-Scholes option pricing model is used to value the warrants. Key inputs to the valuation model include current share estimated fair value, strike price, volatility, expected life, risk-free interest rate, market and liquidity discounts. Several of the inputs to the valuation model incorporate assumptions by management that are not observable in the market; consequently, the valuation of warrants is classified in Level 3 of the fair value hierarchy. The grant date fair value of a warrant is deemed to be a loan fee and is recognized in interest income over the life of the loan as an adjustment to loan yield. Refer to Note 11, Derivative Instruments, for additional discussion of Equity Warrants. During the nine months ended September 30, 2013, Level 3 assets measured on a recurring basis also included a collateralized debt obligation senior note classified as an available-for-sale security. This security was sold during the fourth quarter of 2013.
Level 3 liabilities measured at fair value on a recurring basis consist of contingent consideration and an FDIC clawback liability that are included in other liabilities. As part of its acquisition of Rochdale Investment Management, LLC and associated entities (collectively, “Rochdale”), the Company entered into a contingent consideration arrangement that requires the Company to pay additional cash consideration to Rochdale’s former shareholders at certain points in time over the six years after the date of acquisition if certain criteria, such as revenue growth and pre-tax margin, are met. During the nine months ended September 30, 2014, the Company made total contingent consideration payments to Rochdale’s former shareholders of approximately $17.3 million. The fair value of the remaining contingent consideration was estimated using a probability-weighted discounted cash flow model. Although the acquisition agreement does not set a limit on the total payment, the Company estimates that the remaining consideration payment could be in the range of $26 million to $55 million, but will ultimately be determined based on actual future results. The contingent consideration liability is remeasured to fair value at each reporting date until its settlement.
The FDIC clawback liability was valued using the discounted cash flow method based on the terms specified in loss-sharing agreements with the FDIC, the actual FDIC payments collected, and the following unobservable inputs: (1) risk-adjusted discount rate reflecting the Bank’s credit risk, plus a liquidity premium, (2) prepayment assumptions, and (3) credit assumptions.
During the nine months ended September 30, 2014, a $2.9 million contingent consideration asset and $0.6 million of equity warrants were added to Level 3 assets measured on a recurring basis. There were no other purchases or transfers out of Level 3 assets measured on a recurring basis during the nine months ended September 30, 2014 and 2013. Paydowns totaling $0.1 million and $3.7 million were received on Level 3 assets measured on a recurring basis for the nine months ended September 30, 2014 and 2013, respectively.
Nonrecurring Fair Value Measurements
Assets measured at fair value on a nonrecurring basis using significant unobservable inputs include certain collateral dependent impaired loans, OREO for which fair value is not solely based on market observable inputs, and certain private equity and alternative investments. Private equity and alternative investments do not have readily determinable fair values. These investments are carried at cost and evaluated for impairment on a quarterly basis. Due to the lack of readily determinable fair values for these investments, the impairment assessment is based primarily on a review of investment performance and the likelihood that the capital invested would be recovered.
The table below provides information about valuation method, inputs and assumptions for nonrecurring Level 3 fair value measurements. The weight assigned to each input is based on the facts and circumstances that exist at the date of measurement.
Information About Nonrecurring Level 3 Fair Value Measurements
(in thousands)	Fair Value at			Valuation		Unobservable Inputs
	September 30,			Method
	2014
Other real estate owned	$	8,101		Third-party appraisal		- Fair values are primarily based on unadjusted appraised values.
For assets measured at fair value on a nonrecurring basis, the following table presents the total net gains and losses, which include charge-offs, recoveries, specific reserves, OREO valuation write-downs and write-ups, gains and losses on sales of OREO, and impairment write-downs on private equity investments, recognized in the three and nine months ended September 30, 2014 and 2013:
	For the three months ended						For the nine months ended
	September 30,						September 30,
(in thousands)	2014			2013			2014			2013
Collateral dependent impaired loans:
Commercial real estate mortgages	$	—		$	(934	)	$	(5	)	$	(641	)
Residential mortgages	7			(2		)	81			(224		)
Home equity loans and lines of credit	—			—			—			116
Installment	—			—			—			(138		)
Other real estate owned (1)	(283		)	(364		)	784			(5,075		)
Private equity and alternative investments	—			(109		)	—			(508		)
Total net gains (losses) recognized	$	(276	)	$	(1,409	)	$	860		$	(6,470	)
(1)     Net gains and losses on OREO include amounts related to covered OREO, a significant portion of which is payable to or reimbursable by the FDIC.
Fair Value of Financial Instruments
A financial instrument is broadly defined as cash, evidence of an ownership interest in another entity, or a contract that imposes a contractual obligation on one entity and conveys a corresponding right to a second entity to require delivery or exchange of a financial instrument. Refer to Note 1, Summary of Significant Accounting Policies, in the Company’s 2013 Form 10-K for additional information on fair value measurements.
The disclosure does not include estimated fair value amounts for assets and liabilities which are not defined as financial instruments but which have significant value. These assets and liabilities include the value of customer-relationship intangibles, goodwill, affordable housing investments carried at cost, other assets, deferred taxes and other liabilities. Accordingly, the total of the fair values presented does not represent the underlying value of the Company.
The following tables summarize the carrying amounts and estimated fair values of those financial instruments that are reported at amortized cost in the Company’s consolidated balance sheets. The tables also provide information on the level in the fair value hierarchy for inputs used in determining the fair value of those financial instruments. Most financial assets and financial liabilities for which carrying amount equals fair value are considered by the Company to be Level 1 measurements in the fair value hierarchy.
	September 30, 2014
	Carrying			Total			Fair Value Measurements Using
(in millions)	Amount			Fair Value			Level 1			Level 2			Level 3
Financial Assets:
Cash and due from banks	$	503.6		$	503.6		$	503.6		$	—		$	—
Due from banks - interest bearing	625.2			625.2			625.2			—			—
Securities purchased under resale agreements	200			199.3			—			199.3			—
Securities held-to-maturity	3,450.60			3,462.00			—			3,462.00			—
Loans and leases, net of allowance	19,035.30			19,612.60			—			—			19,612.60
Covered loans, net of allowance	543.3			590.3			—			—			590.3
FDIC indemnification asset	59.9			48.3			—			—			48.3
Investment in FHLB and FRB stock	58.4			58.4			—			58.4			—
Financial Liabilities:
Deposits	$	27,956.00		$	27,957.80		$	—		$	27,361.60		$	596.2
Short-term borrowings	4.6			4.6			—			—			4.6
Long-term debt	631.4			697.1			—			605.5			91.6
	December 31, 2013
	Carrying			Total			Fair Value Measurements Using
(in millions)	Amount			Fair Value			Level 1			Level 2			Level 3
Financial Assets:
Cash and due from banks	$	183.2		$	183.2		$	183.2		$	—		$	—
Due from banks - interest bearing	552.7			552.7			552.7			—			—
Securities purchased under resale agreements	200			200.5			—			200.5			—
Securities held-to-maturity	2,957.80			2,883.90			—			2,883.90			—
Loans and leases, net of allowance	16,867.90			17,362.90			—			—			17,362.90
Covered loans, net of allowance	701			739.5			—			—			739.5
FDIC indemnification asset	89.2			74.3			—			—			74.3
Investment in FHLB and FRB stock	64.4			64.4			—			64.4			—
Financial Liabilities:
Deposits	$	25,679.40		$	25,682.20		$	—		$	24,990.80		$	691.4
Short-term borrowings	3.9			3.9			—			—			3.9
Long-term debt	736			788.9			—			697.8			91.1
Following is a description of the methods and assumptions used in estimating the fair values of these financial instruments:
Cash and due from banks and Due from banks—interest bearing — For these short-term instruments, the carrying amount is a reasonable estimate of fair value.
Securities purchased under resale agreements— The fair value of securities purchased under term resale agreements is determined using a combination of quoted market prices and observable market inputs such as interest rates and credit spreads.
Securities held-to-maturity — For securities held-to-maturity, the fair value is generally determined by quoted market prices, where available, or on observable market inputs appropriate for the type of security.
Loans and leases — Loans and leases, excluding covered loans, are not recorded at fair value on a recurring basis. Nonrecurring fair value adjustments are periodically recorded on impaired loans that are measured for impairment based on the fair value of collateral. Due to the lack of activity in the secondary market for the types of loans in the Company’s portfolio, a model-based approach is used for determining the fair value of loans for purposes of the disclosures in the previous table. The fair value of loans is estimated by discounting future cash flows using discount rates that incorporate the Company’s assumptions for current market yields, credit risk and liquidity premiums. Loan cash flow projections are based on contractual loan terms adjusted for the impact of current interest rate levels on borrower behavior, including prepayments. Loan prepayment assumptions are based on industry standards for the type of loans being valued. Projected cash flows are discounted using yield curves based on current market conditions. Yield curves are constructed by product type using the Bank’s loan pricing model for like-quality credits. The discount rates used in the Company’s model represent the rates the Bank would offer to current borrowers for like-quality credits. These rates could be different from what other financial institutions could offer for these loans.
Covered loans — The fair value of covered loans is based on estimates of future loan cash flows and appropriate discount rates, which incorporate the Company’s assumptions about market funding cost and liquidity premium. The estimates of future loan cash flows are determined using the Company’s assumptions concerning the amount and timing of principal and interest payments, prepayments and credit losses.
FDIC indemnification asset — The fair value of the FDIC indemnification asset is estimated by discounting estimated future cash flows based on estimated current market rates.
Investment in FHLB and FRB stock — Investments in Federal Home Loan Bank of San Francisco (“FHLB”) and Federal Reserve Bank (“FRB”) stock are recorded at cost. Ownership of these securities is restricted to member banks and the securities do not have a readily determinable market value. Purchases and sales of these securities are at par value with the issuer. The fair value of investments in FHLB and FRB stock is equal to the carrying amount.
Deposits — The fair value of demand and interest checking deposits, savings deposits, and certain money market accounts is the amount payable on demand at the reporting date. The fair value of fixed-maturity certificates of deposit (“CD”) is determined by discounting expected future cash flows using the rates offered by the Bank for deposits of similar type and remaining maturity at the measurement date. This value is compared to the termination value of each CD given the Bank’s standard early withdrawal penalties. The fair value reported is the higher of the discounted present value of each CD and the termination value after the recovery of prepayment penalties. The Bank reviews pricing for its CD products weekly. This review gives consideration to market pricing for products of similar type and maturity offered by other financial institutions.
Short-term borrowings — The fair value of the current portion of long-term debt classified in short-term borrowings is obtained through third-party pricing sources. The fair value of nonrecourse debt is determined by discounting estimated future cash flows based on estimated current market rates. The carrying amount of the remaining other short-term borrowings is a reasonable estimate of fair value.
Long-term debt — The fair value of long-term debt, excluding nonrecourse debt, is obtained through third-party pricing sources. The fair value of nonrecourse debt is determined by discounting estimated future cash flows based on estimated current market rates.
Off-balance sheet commitments, which include commitments to extend credit, are excluded from the table. A reasonable estimate of fair value for these instruments is the carrying amount of deferred fees and the reserve for any credit losses related to these off-balance sheet instruments. This estimate is not material to the Company’s financial position.

Securities

Securities	9 Months Ended
	Sep. 30, 2014
Securities	'
Securities	'
	Note 3. Securities
	At September 30, 2014, the Company had total securities of $9.21 billion, comprised of securities available-for-sale at fair value of $5.63 billion, securities held-to-maturity at amortized cost of $3.45 billion and trading securities at fair value of $125.9 million. At December 31, 2013, the Company had total securities of $9.28 billion, comprised of securities available-for-sale at fair value of $6.24 billion, securities held-to-maturity at amortized cost of $2.96 billion and trading securities at fair value of $82.4 million.
	The following is a summary of amortized cost and estimated fair value for the major categories of securities available-for-sale and securities held-to-maturity at September 30, 2014 and December 31, 2013:
					Gross			Gross
		Amortized			Unrealized			Unrealized
	(in thousands)	Cost			Gains			Losses			Fair Value
	September 30, 2014
	Securities available-for-sale:
	U.S. Treasury	$	46,716		$	49		$	—		$	46,765
	Federal agency - Debt	1,329,891			581			(3,744		)	1,326,728
	Federal agency - MBS	105,992			2,826			(1,842		)	106,976
	CMOs - Federal agency	3,583,667			23,201			(47,790		)	3,559,078
	CMOs - Non-agency	25,521			128			(367		)	25,282
	State and municipal	374,948			7,131			(86		)	381,993
	Other debt securities	174,538			2,504			—			177,042
	Total debt securities	5,641,273			36,420			(53,829		)	5,623,864
	Equity securities and mutual funds	621			4,691			—			5,312
	Total securities available-for-sale	$	5,641,894		$	41,111		$	(53,829	)	$	5,629,176
	Securities held-to-maturity (1):
	Federal agency - Debt	$	296,900		$	4,013		$	(1,154	)	$	299,759
	Federal agency - MBS	582,365			7,137			(5,186		)	584,316
	CMOs - Federal agency	1,847,655			14,816			(23,018		)	1,839,453
	State and municipal	625,860			17,884			(2,925		)	640,819
	Other debt securities	97,771			60			(190		)	97,641
	Total securities held-to-maturity	$	3,450,551		$	43,910		$	(32,473	)	$	3,461,988
	December 31, 2013
	Securities available-for-sale:
	U.S. Treasury	$	35,312		$	23		$	—		$	35,335
	Federal agency - Debt	1,417,509			938			(7,911		)	1,410,536
	Federal agency - MBS	156,399			3,615			(2,788		)	157,226
	CMOs - Federal agency	4,037,348			30,721			(70,771		)	3,997,298
	CMOs - Non-agency	38,383			127			(1,048		)	37,462
	State and municipal	407,312			8,806			(123		)	415,995
	Other debt securities	175,091			3,731			—			178,822
	Total debt securities	6,267,354			47,961			(82,641		)	6,232,674
	Equity securities and mutual funds	337			8,106			—			8,443
	Total securities available-for-sale	$	6,267,691		$	56,067		$	(82,641	)	$	6,241,117
	Securities held-to-maturity (1):
	Federal agency - Debt	$	178,413		$	133		$	(5,122	)	$	173,424
	Federal agency - MBS	445,360			1,005			(11,930		)	434,435
	CMOs - Federal agency	1,781,219			1,839			(40,621		)	1,742,437
	State and municipal	454,155			421			(19,014		)	435,562
	Other debt securities	98,696			—			(619		)	98,077
	Total securities held-to-maturity	$	2,957,843		$	3,398		$	(77,306	)	$	2,883,935
	(1)     Securities held-to-maturity are presented in the consolidated balance sheets at amortized cost.
	Proceeds from sales of securities available-for-sale were $1.0 million and $627.1 million for the three and nine months ended September 30, 2014, respectively, compared with $584.7 million and $1.84 billion for the three and nine months ended September 30, 2013. There were no sales of securities held-to-maturity during the three and nine months ended September 30, 2014 and 2013. The following table provides the gross realized gains and losses on the sales and calls of securities (including trading securities):
		For the three months ended						For the nine months ended
		September 30,						September 30,
	(in thousands)	2014			2013			2014			2013
	Gross realized gains	$	19		$	17,533		$	7,989		$	24,369
	Gross realized losses	(5		)	(11,745		)	(486		)	(11,745		)
	Net realized gains	$	14		$	5,788		$	7,503		$	12,624
	Interest income on securities for the three months ended September 30, 2014 and 2013 is comprised of: (i) taxable interest income of $37.5 million and $35.5 million, respectively, (ii) nontaxable interest income of $6.4 million and $4.5 million, respectively, and (iii) dividend income of $22 thousand and $19 thousand, respectively. Interest income on securities for the nine months ended September 30, 2014 and 2013 is comprised of: (i) taxable interest income of $111.0 million and $112.1 million, respectively, (ii) nontaxable interest income of $17.9 million and $13.3 million, respectively, and (iii) dividend income of $47 thousand and $0.1 million, respectively.
	The following table provides the expected remaining maturities of debt securities included in the securities portfolio at September 30, 2014, except for maturities of mortgage-backed securities which are allocated according to the average life of expected cash flows. Average expected maturities will differ from contractual maturities because of the amortizing nature of the loan collateral and prepayment behavior of borrowers.
	(in thousands)	One year or			Over 1 year			Over 5 years			Over 10			Total
		less			through			through			years
					5 years			10 years
	Securities available-for-sale:
	U.S. Treasury	$	23,134		$	23,631		$	—		$	—		$	46,765
	Federal agency - Debt	188,384			1,099,385			38,959			—			1,326,728
	Federal agency - MBS	—			89,263			17,713			—			106,976
	CMOs - Federal agency	70,795			3,218,376			269,907			—			3,559,078
	CMOs - Non-agency	1,853			23,429			—			—			25,282
State and municipal	131,825			246,842			—			3,326			381,993
Other	88,678			88,364			—			—			177,042
Total debt securities available-for-sale	$	504,669		$	4,789,290		$	326,579		$	3,326		$	5,623,864
Amortized cost	$	501,637		$	4,801,098		$	335,138		$	3,400		$	5,641,273
Securities held-to-maturity:
Federal agency - Debt	$	—		$	—		$	93,517		$	203,383		$	296,900
Federal agency - MBS	—			84,998			492,868			4,499			582,365
CMOs - Federal agency	—			720,174			1,127,481			—			1,847,655
State and municipal	—			103,459			449,877			72,524			625,860
Other	—			97,771			—			—			97,771
Total debt securities held-to-maturity at amortized cost	$	—		$	1,006,402		$	2,163,743		$	280,406		$	3,450,551
Impairment Assessment
The Company performs a quarterly assessment of debt and equity securities in its investment portfolio to determine whether a decline in fair value below amortized cost is other-than-temporary. The Company’s impairment assessment of debt securities takes the following factors into consideration: the length of time and the extent to which the market value has been less than cost; the financial condition and near-term prospects of the issuer, including events specific to the issuer or industry; defaults or deferrals of scheduled interest and principal payments; external credit ratings; and whether the Company intends to sell the security or more likely than not will be required to sell the security before recovery of its amortized cost basis. For equity securities, the evaluation of whether an impairment is other than temporary is based on whether and when an equity security will recover in value and whether the Company has the intent and ability to hold the equity security until the anticipated recovery in value occurs. If a decline in fair value is determined to be other-than-temporary, the cost basis of the individual security is written down to fair value which then becomes the security’s new cost basis. The new cost basis is not adjusted for subsequent recoveries in fair value.
Other-than-temporary impairment losses on equity securities are recognized in earnings. For debt securities, if the Company intends to sell an impaired security or it is more likely than not it will be required to sell a security prior to recovery of its amortized cost, an impairment loss is recognized in earnings for the entire difference between the amortized cost and fair value of the security on the measurement date. If the Company does not intend to sell the security or it is not more likely than not it will be required to sell the security prior to recovery of its amortized cost, the credit loss component of impairment is recognized in earnings. Impairment associated with factors other than credit, such as market liquidity, is recognized in other comprehensive income, net of tax.
Securities Deemed to be Other-Than-Temporarily Impaired
The Company recorded impairment losses in earnings on securities available-for-sale of $0.1 million and $0.3 million for the three and nine months ended September 30, 2014, respectively. Impairment losses of $0.1 million and $0.3 million were recognized in earnings for the three and nine months ended September 30, 2013. The Company recognized $0.2 million of non-credit-related other-than-temporary impairment in accumulated other comprehensive income or loss (“AOCI”) on non-agency CMO securities classified as available-for-sale at September 30, 2014. There was no non-credit related other-than-temporary impairment recognized in AOCI on securities available-for-sale at September 30, 2013. No impairment losses were recognized in earnings or AOCI for securities held-to-maturity during the three and nine months ended September 30, 2014 and 2013.
The following table summarizes the changes in cumulative credit-related other-than-temporary impairment recognized in earnings for debt securities for the three and nine months ended September 30, 2014 and 2013. Credit-related other-than-temporary impairment that was recognized in earnings is reflected as an “Initial credit-related impairment” if the period reported is the first time the security had a credit impairment. A credit-related other-than-temporary impairment is reflected as a “Subsequent credit-related impairment” if the period reported is not the first time the security had a credit impairment. Cumulative impairment is reduced for securities with previously recognized credit-related impairment that were sold or redeemed during the period. Cumulative impairment is further adjusted for other changes in expected cash flows.
	For the three months ended						For the nine months ended
	September 30,						September 30,
(in thousands)	2014			2013			2014			2013
Balance, beginning of period	$	2,395		$	3,654		$	4,549		$	16,486
Subsequent credit-related impairment	75			144			323			326
Reduction for securities sold or redeemed	—			—			(2,402		)	(12,761		)
Reduction for increase in expected cash flows on securities for which OTTI was previously recognized	—			(421		)	—			(674		)
Balance, end of period	$	2,470		$	3,377		$	2,470		$	3,377
The following table provides a summary of the gross unrealized losses and fair value of investment securities that are not deemed to be other-than-temporarily impaired aggregated by investment category and length of time that the securities have been in a continuous unrealized loss position as of September 30, 2014 and December 31, 2013. The table also includes investment securities that had both a credit-related impairment recognized in earnings and a non-credit-related impairment recognized in AOCI.
	Less than 12 months						12 months or greater						Total
(in thousands)	Fair Value			Estimated			Fair Value			Estimated			Fair Value		Estimated
				Unrealized						Unrealized					Unrealized
				Loss						Loss					Loss
September 30, 2014
Securities available-for-sale:
Federal agency - Debt	$	844,088		$	1,412		$	271,824		$	2,332		$	1,115,912	$	3,744
Federal agency - MBS	17,748			64			40,660			1,778			58,408		1,842
CMOs - Federal agency	651,362			3,535			1,270,590			44,255			1,921,952		47,790
CMOs - Non-agency	1,983			3			12,979			364			14,962		367
State and municipal	—			—			4,164			86			4,164		86
Total securities available-for-sale	$	1,515,181		$	5,014		$	1,600,217		$	48,815		$	3,115,398	$	53,829
Securities held-to-maturity:
Federal agency - Debt	$	25,034		$	22		$	72,829		$	1,132		$	97,863	$	1,154
Federal agency - MBS	119,935			726			122,965			4,460			242,900		5,186
CMOs - Federal agency	743,948			12,015			353,787			11,003			1,097,735		23,018
State and municipal	22,365			124			119,691			2,801			142,056		2,925
Other debt securities	79,147			190			—			—			79,147		190
Total securities held-to-maturity	$	990,429		$	13,077		$	669,272		$	19,396		$	1,659,701	$	32,473
December 31, 2013
Securities available-for-sale:
Federal agency - Debt	$	1,026,142		$	7,911		$	—		$	—		$	1,026,142	$	7,911
Federal agency - MBS	17,962			85			43,492			2,703			61,454		2,788
CMOs - Federal agency	1,637,994			35,922			728,101			34,849			2,366,095		70,771
CMOs - Non-agency	10,056			319			8,483			729			18,539		1,048
State and municipal	16,521			39			4,266			84			20,787		123
Total securities available-for-sale	$	2,708,675		$	44,276		$	784,342		$	38,365		$	3,493,017	$	82,641
Securities held-to-maturity:
Federal agency - Debt	$	156,290		$	5,122		$	—		$	—		$	156,290	$	5,122
Federal agency - MBS	321,090			10,513			15,338			1,417			336,428		11,930
CMOs - Federal agency	1,539,464			36,435			63,276			4,186			1,602,740		40,621
State and municipal	347,305			14,190			41,102			4,824			388,407		19,014
Other debt securities	98,077			619			—			—			98,077		619
Total securities held-to-maturity	$	2,462,226		$	66,879		$	119,716		$	10,427		$	2,581,942	$	77,306
At September 30, 2014, the Company had $3.12 billion of securities available-for-sale and $1.66 billion of securities held-to-maturity in an unrealized loss position. The debt securities in an unrealized loss position totaled 497 and included 49 federal agency debt securities, 44 federal agency MBS securities, 145 federal agency CMOs, 3 non-agency CMOs, 249 state and municipal securities and 7 other debt securities.
At December 31, 2013, the Company had $3.49 billion of securities available-for-sale and $2.58 billion of securities held-to-maturity in an unrealized loss position. The debt securities in an unrealized loss position totaled 809 and included 47 federal agency debt securities, 44 federal agency MBS, 182 federal agency CMOs, 4 non-agency CMOs, 520 state and municipal securities and 12 other debt securities.

Other_Investments

Other Investments	9 Months Ended
	Sep. 30, 2014
Other Investments	'
Other Investments	'
	Note 4. Other Investments
	FHLB and FRB Stock
	The Company’s investment in stock issued by the FHLB and FRB totaled $58.4 million and $64.4 million at September 30, 2014 and December 31, 2013, respectively. Ownership of government agency securities is restricted to member banks, and the securities do not have readily determinable market values. The Company records investments in FHLB and FRB stock at cost in Other assets of the consolidated balance sheets and evaluates these investments for impairment. The Company expects to recover the full amount invested in FHLB and FRB stock.
	Private Equity and Alternative Investments
	The Company has ownership interests in a limited number of private equity, venture capital, real estate and hedge funds that are not publicly traded and do not have readily determinable fair values. These investments are carried at cost in the Other assets section of the consolidated balance sheets and are net of impairment write-downs, if applicable. The Company’s investments in these funds totaled $29.0 million at September 30, 2014 and $34.0 million at December 31, 2013. A summary of investments by fund type is provided below:
	(in thousands)	September 30,		December 31,
	Fund Type	2014		2013
	Private equity and venture capital	$	18,284	$	20,298
	Real estate	7,114		7,646
	Hedge	1,684		2,733
	Other	1,895		3,275
	Total	$	28,977	$	33,952
	Management reviews these investments quarterly for impairment. The impairment assessment includes a review of the most recent financial statements and investment reports for each fund and discussions with fund management. An impairment loss is recognized if it is deemed probable that the Company will not recover the cost of an investment. The impairment loss is recognized in Other noninterest income in the consolidated statements of income. The new cost basis of the investment is not adjusted for subsequent recoveries in value. The Company recognized no impairment losses on other investments during the three and nine months ended September 30, 2014. The Company recognized impairment losses of $0.1 million and $0.5 million on other investments during the three and nine months ended September 30, 2013, respectively.

Loans_Allowance_for_Loan_and_L

Loans, Allowance for Loan and Lease Losses, and Reserve for Off-Balance Sheet Credit Commitments	9 Months Ended
	Sep. 30, 2014
Loans, Allowance for Loan and Lease Losses, and Reserve for Off-Balance Sheet Credit Commitments	'
Loans, Allowance for Loan and Lease Losses, and Reserve for Off-Balance Sheet Credit Commitments	'
	Note 5. Loans, Allowance for Loan and Lease Losses, and Reserve for Off-Balance Sheet Credit Commitments
	The following is a summary of the major categories of loans:
	Loans and Leases
		September 30,			December 31,
	(in thousands) (1)	2014			2013
	Commercial	$	8,612,691		$	7,562,300
	Commercial real estate mortgages	3,565,188			3,223,001
	Residential mortgages	5,023,213			4,554,311
	Real estate construction	585,232			367,004
	Home equity loans and lines of credit	759,258			709,344
	Installment	178,803			151,955
	Lease financing	623,603			602,523
	Loans and leases, excluding covered loans	19,347,988			17,170,438
	Less: Allowance for loan and lease losses	(312,703		)	(302,584		)
	Loans and leases, excluding covered loans, net	19,035,285			16,867,854
	Covered loans	552,715			716,911
	Less: Allowance for loan losses	(9,368		)	(15,922		)
	Covered loans, net	543,347			700,989
	Total loans and leases	$	19,900,703		$	17,887,349
	Total loans and leases, net	$	19,578,632		$	17,568,843
	(1)     Commercial loans as of December 31, 2013 have been corrected to include $158.2 million of loans that were previously reported as lease financing.
	The loan amounts above include unamortized fees, net of deferred costs, of $0.8 million and $2.3 million as of September 30, 2014 and December 31, 2013, respectively.
	Concentrations of credit risk arise when a number of clients are engaged in similar business activities, or activities in the same geographic region, or have similar economic features that would cause their ability to meet contractual obligations to be similarly affected by changes in economic conditions. Although the Company’s lending activities are predominantly in California, and to a lesser extent, New York, the Company has various specialty lending businesses that lend to businesses located throughout the United States of America. Excluding covered loans, at September 30, 2014, California represented 74 percent of total loans outstanding and New York represented 9 percent. The remaining 17 percent of total loans outstanding represented other states. Although the Company has a diversified loan portfolio, a substantial portion of the loan portfolio and credit performance depends on the economic stability of Southern California. Credit performance also depends, to a lesser extent, on economic conditions in the San Francisco Bay area and New York.
	Within the Company’s covered loan portfolio at September 30, 2014, the five states with the largest concentration were California (32 percent), Texas (12 percent), Nevada (7 percent), Arizona (6 percent) and Ohio (6 percent). The remaining 37 percent of total covered loans outstanding represented other states.
	Covered Loans
	Covered loans represent loans acquired from the FDIC that are subject to loss-sharing agreements. Covered loans were $552.7 million as of September 30, 2014 and $716.9 million as of December 31, 2013. Covered loans, net of allowance for loan losses, were $543.3 million at September 30, 2014 and $701.0 million at December 31, 2013.
	The following is a summary of the major categories of covered loans:
		September 30,			December 31,
	(in thousands)	2014			2013
	Commercial	$	2,273		$	10,009
	Commercial real estate mortgages	522,883			666,628
	Residential mortgages	5,203			4,976
	Real estate construction	19,016			31,184
	Home equity loans and lines of credit	3,089			3,695
	Installment	251			419
	Covered loans	552,715			716,911
	Less: Allowance for loan losses	(9,368		)	(15,922		)
	Covered loans, net	$	543,347		$	700,989
	The following table provides information on covered loans and loss-sharing terms by acquired entity:
	(in thousands)	Imperial			1st Pacific			Sun West			Nevada			Total
		Capital			Bank			Bank			Commerce
		Bank									Bank
	Covered loans as of:
	September 30, 2014	$	492,445		$	24,748		$	13,025		$	22,497		$	552,715
	December 31, 2013	630,754			40,110			18,761			27,286			716,911
	As of September 30, 2014:
	FDIC indemnification asset	$	51,074		$	2,431		$	3,105		$	3,307		$	59,917
	FDIC clawback liability	—			12,240			2,131			153			14,524
	Expiration date of FDIC loss sharing:
	Commercial (1)	12/31/16			6/30/15			6/30/15			6/30/16
	Residential	12/31/19			5/31/20			5/31/20			4/30/21
	Termination date of FDIC loss-sharing agreements:
	Commercial (1)	12/19/17			5/8/18			5/29/18			6/30/19
	Residential	12/31/19			5/31/20			5/31/20			4/30/21
	(1)     The Company is subject to sharing 80 percent of its recoveries with the FDIC up to the last day of the quarter in which the termination dates of the commercial loss-sharing agreements occur.
	The Company evaluated the acquired loans from its FDIC-assisted acquisitions and concluded that all loans, with the exception of a small population of acquired loans, would be accounted for under Accounting Standards Codification Topic 310-30, Loans and Debt Securities Acquired with Deteriorated Credit Quality (“ASC 310-30”). Loans are accounted for under ASC 310-30 when there is evidence of credit deterioration since origination and for which it is probable, at acquisition, that the Company would be unable to collect all contractually required payments. Interest income is recognized on all acquired impaired loans through accretion of the difference between the carrying amount of the loans and their expected cash flows.
	The excess of cash flows expected to be collected over the carrying value of the underlying acquired impaired loans is referred to as the accretable yield. This amount is not reported in the consolidated balance sheets but is accreted into interest income over the remaining estimated lives of the underlying pools of loans. Changes in the accretable yield for acquired impaired loans were as follows for the nine months ended September 30, 2014 and 2013:
		For the nine months ended
		September 30,
	(in thousands)	2014			2013
	Balance, beginning of period	$	219,018		$	295,813
	Accretion	(36,067		)	(49,395		)
	Reclassifications from nonaccretable difference	25,636			26,990
Disposals and other	(28,628		)	(40,959		)
Balance, end of period	$	179,959		$	232,449
The factors that most significantly affect estimates of cash flows expected to be collected, and accordingly the accretable yield balance, include: (i) changes in credit assumptions, including both credit loss amounts and timing; (ii) changes in prepayment assumptions; and (iii) changes in interest rates for variable-rate loans. Reclassifications between accretable yield and nonaccretable difference may vary from period to period as the Company periodically updates its cash flow projections. The reclassification of nonaccretable difference to accretable yield during 2014 was principally driven by positive changes in cash flows, resulting mainly from changes in credit assumptions.
The Company recorded an indemnification asset related to its FDIC-assisted acquisitions, which represents the present value of the expected reimbursement from the FDIC for expected losses on acquired loans, OREO and unfunded commitments. The difference between the carrying value of the FDIC indemnification asset and the undiscounted cash flow that the Company expects to collect from the FDIC is accreted or amortized into noninterest income up until the expiration date of the FDIC loss sharing. Refer to the preceding table for a list of expiration dates of FDIC loss sharing by acquired entity. The FDIC indemnification asset is reviewed on a quarterly basis and adjusted based on changes in cash flow projections. The FDIC indemnification asset from all FDIC-assisted acquisitions was $59.9 million at September 30, 2014 and $89.2 million at December 31, 2013.
Credit Quality on Loans and Leases, Excluding Covered Loans
Allowance for Loan and Lease Losses and Reserve for Off-Balance Sheet Credit Commitments
The Company accounts for the credit risk associated with lending activities through its allowance for loan and lease losses, reserve for off-balance sheet credit commitments and provision for credit losses. The provision is the expense recognized in the consolidated statements of income to adjust the allowance and reserve to the levels deemed appropriate by management, as determined through application of the Company’s allowance methodology procedures. The provision for credit losses reflects management’s judgment of the adequacy of the allowance for loan and lease losses and the reserve for off-balance sheet credit commitments. It is determined through quarterly analytical reviews of the loan and commitment portfolios and consideration of such other factors as the Company’s loan and lease loss experience, trends in problem loans, concentrations of credit risk, underlying collateral values, and current economic conditions, as well as the results of the Company’s ongoing credit review process. As conditions change, the Company’s level of provisioning and the allowance for loan and lease losses and reserve for off-balance sheet credit commitments may change.
The relative significance of risk considerations used in measuring the allowance for loan and lease losses will vary by portfolio segment. For commercial loans, the primary risk consideration is a borrower’s ability to generate sufficient cash flows to repay their loan. Secondary considerations include the creditworthiness of guarantors and the valuation of collateral. In addition to the creditworthiness of a borrower, the type and location of real estate collateral is an important risk factor for commercial real estate and real estate construction loans. The primary risk considerations for consumer loans are a borrower’s personal cash flow and liquidity, as well as collateral value.
For commercial, non-homogenous loans that are not impaired, the Bank derives loss factors for each risk grade and loan type via a process that begins with estimates of probable losses inherent in the portfolio based upon various statistical analyses. The factors considered in the analysis include loan type, migration analysis, in which historical delinquency and credit loss experience is applied to the portfolio, as well as analyses that reflect current trends and conditions. Each portfolio of smaller balance homogeneous loans, including residential first mortgages, installment, revolving credit and most other consumer loans, is collectively evaluated for loss potential. The quantitative portion of the allowance for loan and lease losses is adjusted for qualitative factors to account for model imprecision and to incorporate the range of probable outcomes inherent in the estimates used for the allowance. The qualitative portion of the allowance attempts to incorporate the risks inherent in the portfolio, economic uncertainties, competition, and regulatory requirements and other subjective factors such as changes in underwriting standards. It also considers overall portfolio indicators, including current and historical credit losses; delinquent, nonperforming and criticized loans; portfolio concentrations; trends in volumes and terms of loans; and economic trends in the broad market and in specific industries.
A portion of the allowance for loan and lease losses is attributed to impaired loans that are individually measured for impairment. This measurement is based on the present value of expected future cash flows discounted using the loan’s contractual effective rate, the fair value of collateral or the secondary market value of the loan.
The allowance for loan and lease losses is decreased by the amount of charge-offs and increased by the amount of recoveries. Generally, commercial, commercial real estate and real estate construction loans are charged off immediately when it is determined that advances to the borrower are in excess of the calculated current fair value of the collateral and if a borrower is deemed incapable of repayment of unsecured debt, there is little or no prospect for near term improvement and no realistic strengthening action of significance pending. Consumer loans are charged-off based on delinquency, ranging from 60 days for overdrafts to 180 days for secured consumer loans, or earlier when it is determined that the loan is uncollectible due to a triggering event, such as bankruptcy, fraud or death.
The following is a summary of activity in the allowance for loan and lease losses and period-end recorded investment balances of loans evaluated for impairment, excluding covered loans, for the three and nine months ended September 30, 2014 and 2013. Activity is provided by loan portfolio segment which is consistent with the Company’s methodology for determining the allowance for loan and lease losses.
(in thousands)	Commercial			Commercial			Residential			Real Estate			Home Equity			Installment			Qualitative			Total
	-1			Real Estate			Mortgages			Construction			Loans and Lines
				Mortgages									of Credit
Three months ended September 30, 2014
Allowance for loan and lease losses:
Beginning balance	$	126,279		$	50,651		$	10,296		$	7,191		$	6,575		$	2,284		$	108,000		$	311,276
Charge-offs	(3,773		)	—			—			—			—			(76		)	—			(3,849		)
Recoveries	6,202			225			33			7,729			52			158			—			14,399
Net recoveries	2,429			225			33			7,729			52			82			—			10,550
(Reversal of) provision for credit losses	(5,762		)	113			1,138			(6,175		)	401			18			2,267			(8,000		)
Transfers to reserve for off-balance sheet credit commitments	—			—			—			—			—			—			(1,123		)	(1,123		)
Ending balance	$	122,946		$	50,989		$	11,467		$	8,745		$	7,028		$	2,384		$	109,144		$	312,703
Nine months ended September 30, 2014
Allowance for loan and lease losses:
Beginning balance	$	117,103		$	50,678		$	11,540		$	6,351		$	6,677		$	1,842		$	108,393		$	302,584
Charge-offs	(18,594		)	(5		)	(482		)	—			(165		)	(264		)	—			(19,510		)
Recoveries	15,437			352			258			12,804			254			1,490			—			30,595
Net (charge-offs) recoveries	(3,157		)	347			(224		)	12,804			89			1,226			—			11,085
(Reversal of) provision for credit losses	(353		)	(36		)	151			(10,410		)	262			(684		)	2,070			(9,000		)
Transfers from (to) reserve for off-balance sheet credit commitments	9,353			—			—			—			—			—			(1,319		)	8,034
Ending balance	$	122,946		$	50,989		$	11,467		$	8,745		$	7,028		$	2,384		$	109,144		$	312,703
Ending balance of allowance:
Individually evaluated for impairment	$	1,304		$	291		$	—		$	—		$	—		$	—		$	—		$	1,595
Collectively evaluated for impairment	121,642			50,698			11,467			8,745			7,028			2,384			109,144			311,108
Loans and leases, excluding covered loans
Ending balance of loans and leases:
Loans and leases, excluding covered loans	$	9,236,294		$	3,565,188		$	5,023,213		$	585,232		$	759,258		$	178,803		$	—		$	19,347,988
Individually evaluated for impairment	16,316			25,551			7,785			6,610			2,313			—			—			58,575
Collectively evaluated for impairment	9,219,978			3,539,637			5,015,428			578,622			756,945			178,803			—			19,289,413
(1)       Includes lease financing loans.
(in thousands)	Commercial			Commercial			Residential			Real Estate			Home Equity			Installment			Qualitative			Total
	-1			Real Estate			Mortgages			Construction			Loans and Lines
				Mortgages									of Credit
Three months ended September 30, 2013
Allowance for loan and lease losses:
Beginning balance	$	116,619		$	53,339		$	8,004		$	8,335		$	5,400		$	1,355		$	96,862		$	289,914
Charge-offs	(488		)	(1,270		)	—			—			(225		)	(18		)	—			(2,001		)
Recoveries	4,863			686			40			2,945			31			218			—			8,783
Net recoveries (charge-offs)	4,375			(584		)	40			2,945			(194		)	200			—			6,782
(Reversal of) provision for credit losses	(14,173		)	(2,829		)	5,070			(1,589		)	3,092			317			10,112			—
Transfers to reserve for off-balance sheet credit commitments	—			—			—			—			—			—			(749		)	(749		)
Ending balance	$	106,821		$	49,926		$	13,114		$	9,691		$	8,298		$	1,872		$	106,225		$	295,947
Nine months ended September 30, 2013
Allowance for loan and lease losses:
Beginning balance	$	104,731		$	48,901		$	10,558		$	11,784		$	7,283		$	1,858		$	92,773		$	277,888
Charge-offs	(4,719		)	(1,315		)	(106		)	(100		)	(500		)	(370		)	—			(7,110		)
Recoveries	14,122			1,768			115			8,393			569			1,238			—			26,205
Net recoveries	9,403			453			9			8,293			69			868			—			19,095
(Reversal of) provision for credit losses	(7,313		)	572			2,547			(10,386		)	946			(854		)	14,488			—
Transfers to reserve for off-balance sheet credit commitments	—			—			—			—			—			—			(1,036		)	(1,036		)
Ending balance	$	106,821		$	49,926		$	13,114		$	9,691		$	8,298		$	1,872		$	106,225		$	295,947
Ending balance of allowance:
Individually evaluated for impairment	$	344		$	602		$	232		$	—		$	—		$	—		$	—		$	1,178
Collectively evaluated for impairment	106,477			49,324			12,882			9,691			8,298			1,872			106,225			294,769
Loans and leases, excluding covered loans
Ending balance of loans and leases:
Loans and leases, excluding covered loans	$	7,856,244		$	3,077,183		$	4,418,231		$	380,489		$	681,879		$	152,107		$	—		$	16,566,133
Individually evaluated for impairment	32,727			38,546			6,767			30,190			2,350			—			—			110,580
Collectively evaluated for impairment	7,823,517			3,038,637			4,411,464			350,299			679,529			152,107			—			16,455,553
(1)         Includes lease financing loans.
Off-balance sheet credit exposures include loan commitments and letters of credit. The following table provides a summary of activity in the reserve for off-balance sheet credit commitments for the three and nine months ended September 30, 2014 and 2013:
	For the three months ended						For the nine months ended
	September 30,						September 30,
(in thousands)	2014			2013			2014			2013
Balance, beginning of period	$	24,787		$	25,124		$	33,944		$	24,837
Transfers from (to) allowance for loan and lease losses	1,123			749			(8,034		)	1,036
Balance, end of period	$	25,910		$	25,873		$	25,910		$	25,873
The reserve for off-balance sheet credit commitments increased $1.1 million and decreased $8.0 million during the three and nine months ended September 30, 2014, respectively. The year to date decrease was primarily due to the conversion of an undrawn letter of credit that had a specific reserve to an on-balance sheet loan, and normal fluctuations in the amount of reserves required due to changes in the composition, amount and quality of risk ratings of borrowers associated with the off-balance sheet commitments. Increases and decreases in the reserve for off-balance sheet credit commitments are reflected as an allocation of provision expense from or to the allowance for loan and lease losses.
Impaired Loans and Leases
The Company considers a loan to be impaired when it is probable that it will be unable to collect all amounts due according to the contractual terms of the loan agreement. Once a loan is determined to be impaired, the impairment is measured based on the present value of the expected future cash flows discounted at the loan’s effective interest rate, except that if the loan is collateral dependent, the impairment is measured by using the fair value of the loan’s collateral. As a final alternative, the observable market price of the debt may be used to assess impairment. Nonperforming loans greater than $1 million are individually evaluated for impairment based upon the borrower’s overall financial condition, resources, and payment record, and the prospects for support from any financially responsible guarantors. Loans under $1 million are measured for impairment using historical loss factors. When the measurement of the impaired loan is less than the recorded amount of the loan, an impairment is recognized by creating a valuation allowance with a corresponding charge to the allowance for loan and lease losses or by adjusting an existing valuation allowance for the impaired loan.
Information on impaired loans, excluding covered loans, at September 30, 2014, December 31, 2013 and September 30, 2013 is provided in the following tables:
				Unpaid						For the three months ended						For the nine months ended
										September 30, 2014						September 30, 2014
(in thousands)	Recorded			Contractual			Related			Average			Interest			Average			Interest
	Investment			Principal			Allowance			Recorded			Income			Recorded			Income
				Balance						Investment			Recognized			Investment			Recognized
September 30, 2014
With no related allowance recorded:
Commercial	$	6,653		$	6,684		$	—		$	6,817		$	38		$	10,653		$	205
Commercial real estate mortgages	20,347			22,698			—			24,290			219			29,478			903
Residential mortgages:
Fixed	2,015			2,254			—			3,406			10			3,459			30
Variable	5,770			5,885			—			3,784			40			3,997			68
Total residential mortgages	7,785			8,139			—			7,190			50			7,456			98
Real estate construction:
Construction	—			—			—			—			—			2,742			76
Land	6,610			8,758			—			9,728			35			11,593			104
Total real estate construction	6,610			8,758			—			9,728			35			14,335			180
Home equity loans and lines of credit	2,313			3,375			—			2,874			—			2,881			—
Installment:
Consumer	—			—			—			—			1			4			1
Total installment	—			—			—			—			1			4			1
Total with no related allowance	$	43,708		$	49,654		$	—		$	50,899		$	343		$	64,807		$	1,387
With an allowance recorded:
Commercial	$	9,663		$	12,134		$	1,304		$	15,957		$	—		$	15,869		$	—
Commercial real estate mortgages	5,204			5,557			291			5,214			73			5,293			191
Residential mortgages:
Variable	—			—			—			2,000			—			1,419			11
Total residential mortgages	—			—			—			2,000			—			1,419			11
Installment:
Consumer	—			—			—			25			—			12			1
Total installment	—			—			—			25			—			12			1
Total with an allowance	$	14,867		$	17,691		$	1,595		$	23,196		$	73		$	22,593		$	203
Total impaired loans by type:
Commercial	$	16,316		$	18,818		$	1,304		$	22,774		$	38		$	26,522		$	205
Commercial real estate mortgages	25,551			28,255			291			29,504			292			34,771			1,094
Residential mortgages	7,785			8,139			—			9,190			50			8,875			109
Real estate construction	6,610			8,758			—			9,728			35			14,335			180
Home equity loans and lines of credit	2,313			3,375			—			2,874			—			2,881			—
Installment	—			—			—			25			1			16			2
Total impaired loans	$	58,575		$	67,345		$	1,595		$	74,095		$	416		$	87,400		$	1,590
(in thousands)	Recorded			Unpaid			Related
	Investment			Contractual			Allowance
				Principal
				Balance
Year ended December 31, 2013
With no related allowance recorded:
Commercial	$	17,721		$	18,041		$	—
Commercial real estate mortgages	32,770			37,555			—
Residential mortgages:
Fixed	2,135			2,295			—
Variable	5,402			5,783			—
Total residential mortgages	7,537			8,078			—
Real estate construction:
Construction	5,485			6,766			—
Land	13,612			26,928			—
Total real estate construction	19,097			33,694			—
Home equity loans and lines of credit	2,329			3,375			—
Installment:
Consumer	16			24			—
Total installment	16			24			—
Total with no related allowance	$	79,470		$	100,767		$	—
With an allowance recorded:
Commercial	$	14,136		$	18,156		$	1,961
Commercial real estate mortgages	5,384			5,764			586
Residential mortgages:
Variable	1,674			1,687			478
Total residential mortgages	1,674			1,687			478
Total with an allowance	$	21,194		$	25,607		$	3,025
Total impaired loans by type:
Commercial	$	31,857		$	36,197		$	1,961
Commercial real estate mortgages	38,154			43,319			586
Residential mortgages	9,211			9,765			478
Real estate construction	19,097			33,694			—
Home equity loans and lines of credit	2,329			3,375			—
Installment	16			24			—
Total impaired loans	$	100,664		$	126,374		$	3,025
				Unpaid						For the three months ended						For the nine months ended
										September 30, 2013						September 30, 2013
(in thousands)	Recorded			Contractual			Related			Average			Interest			Average			Interest
	Investment			Principal			Allowance			Recorded			Income			Recorded			Income
				Balance						Investment			Recognized			Investment			Recognized
September 30, 2013
With no related allowance recorded:
Commercial	$	25,233		$	25,488		$	—		$	26,255		$	593		$	22,584		$	1,440
Commercial real estate mortgages	33,133			37,754			—			29,977			440			33,060			1,102
Residential mortgages:
Fixed	2,031			2,155			—			2,019			33			2,860			75
Variable	3,062			3,418			—			3,670			47			4,062			116
Total residential mortgages	5,093			5,573			—			5,689			80			6,922			191
Real estate construction:
Construction	16,259			21,064			—			16,262			233			17,904			791
Land	13,931			27,092			—			14,056			224			16,506			511
Total real estate construction	30,190			48,156			—			30,318			457			34,410			1,302
Home equity loans and lines of credit	2,350			3,375			—			2,803			47			2,827			81
Installment:
Consumer	—			—			—			—			—			112			—
Total installment	—			—			—			—			—			112			—
Total with no related allowance	$	95,999		$	120,346		$	—		$	95,042		$	1,617		$	99,915		$	4,116
With an allowance recorded:
Commercial	$	7,494		$	9,168		$	344		$	7,567		$	156		$	7,556		$	513
Commercial real estate mortgages	5,413			5,810			602			10,262			45			11,018			361
Residential mortgages:
Fixed	—			—			—			—			—			116			—
Variable	1,674			1,688			232			1,684			14			842			55
Total residential mortgages	1,674			1,688			232			1,684			14			958			55
Real estate construction:
Land	—			—			—			—			—			3,213			213
Total real estate construction	—			—			—			—			—			3,213			213
Home equity loans and lines of credit	—			—			—			—			—			225			—
Total with an allowance	$	14,581		$	16,666		$	1,178		$	19,513		$	215		$	22,970		$	1,142
Total impaired loans by type:
Commercial	$	32,727		$	34,656		$	344		$	33,822		$	749		$	30,140		$	1,953
Commercial real estate mortgages	38,546			43,564			602			40,239			485			44,078			1,463
Residential mortgages	6,767			7,261			232			7,373			94			7,880			246
Real estate construction	30,190			48,156			—			30,318			457			37,623			1,515
Home equity loans and lines of credit	2,350			3,375			—			2,803			47			3,052			81
Installment	—			—			—			—			—			112			—
Total impaired loans	$	110,580		$	137,012		$	1,178		$	114,555		$	1,832		$	122,885		$	5,258
Impaired loans at September 30, 2014 and December 31, 2013 included $32.0 million and $42.1 million, respectively, of loans that are on accrual status. With the exception of restructured loans on accrual status and a limited number of loans on cash basis nonaccrual for which the full collection of principal and interest is expected, interest income is not recognized on impaired loans until the principal balance of these loans is paid off.
Troubled Debt Restructured Loans
There were no loans modified in a troubled debt restructuring during the three months ended September 30, 2014. The following table provides a summary of loans modified in a troubled debt restructuring during the three months ended September 30, 2013:
(in thousands)	Number of		Pre-Modification			Period-End			Financial
	Contracts		Outstanding			Outstanding			Effects (1)
			Principal			Principal
Three months ended September 30, 2013
Commercial	2		$	7,575		$	7,486		$	344
Total troubled debt restructured loans	2		$	7,575		$	7,486		$	344
(1)     Financial effects are comprised of charge-offs and specific reserves recognized on TDR loans at modification date.
The following table provides a summary of loans modified in a troubled debt restructuring during the nine months ended September 30, 2014 and 2013:
(in thousands)	Number of		Pre-Modification			Period-End			Financial
	Contracts		Outstanding			Outstanding			Effects (1)
			Principal			Principal
Nine months ended September 30, 2014
Commercial	2		$	4,098		$	3,799		$	—
Residential mortgages:
Variable	2		4,676			4,647			5
Installment:
Consumer	1		50			—			50
Total troubled debt restructured loans	5		$	8,824		$	8,446		$	55
Nine months ended September 30, 2013
Commercial	12		$	16,258		$	13,624		$	344
Commercial real estate mortgages	1		547			533			—
Home equity loans and lines of credit	1		345			—			—
Total troubled debt restructured loans	14		$	17,150		$	14,157		$	344
(1)     Financial effects are comprised of charge-offs and specific reserves recognized on TDR loans at modification date.
A restructuring constitutes a troubled debt restructuring when a lender, for reasons related to a borrower’s financial difficulties, grants a concession to the borrower that it would not otherwise consider. Loans with pre-modification outstanding balances totaling $8.8 million were modified in troubled debt restructurings during the nine months ended September 30, 2014. Loans with pre-modification outstanding balances totaling $7.6 million and $17.2 million were modified in troubled debt restructurings during the three and nine months ended September 30, 2013, respectively. The concessions granted in the restructurings completed in 2014 consisted of maturity extensions and rate modifications.
The unpaid principal balance of troubled debt restructured (“TDR”) loans was $35.9 million, before specific reserves of $0.9 million, at September 30, 2014 and $52.2 million, before specific reserves of $0.8 million, at December 31, 2013. The net decrease in TDR loans from the prior year-end was primarily attributable to payoffs and payments received on existing TDR loans totaling $25.9 million and the removal of $0.5 million of loans that were restructured in an A/B note structure in prior year that are no longer reported as TDRs. These decreases were partially offset by additions totaling $8.8 million and advances on existing TDR loans totaling $1.5 million. Loans modified in troubled debt restructurings are impaired loans at the time of restructuring and subject to the same measurement criteria as all other impaired loans.
The Company had no TDR loans that subsequently defaulted during the three and nine months ended September 30, 2014, and no TDR loans that subsequently defaulted during the three months ended September 30, 2013. The following table provides a summary of TDR loans that subsequently defaulted during the nine months ended September 30, 2013, that had been modified as a troubled debt restructuring during the 12 months prior to their default. A TDR loan is considered to be in default when payments are 90 days or more past due.
	For nine months ended September 30, 2013
(in thousands)	Number of		Period-End			Period-End
	Contracts		Outstanding			Specific
			Principal			Reserve
Commercial	4		$	896		$	—
Real estate construction:
Land	1		7,244			—
Home equity loans and lines of credit	1		139			—
Total loans that subsequently defaulted	6		$	8,279		$	—
All TDR loans were performing in accordance with their restructured terms at September 30, 2014. As of September 30, 2014, commitments to lend additional funds on restructured loans totaled $0.2 million.
Past Due and Nonaccrual Loans and Leases
Loans are considered past due following the date when either interest or principal is contractually due and unpaid. The following tables provide a summary of past due and nonaccrual loans, excluding covered loans, at September 30, 2014 and December 31, 2013 based upon the length of time the loans have been past due:
(in thousands)	30-59 Days			60-89 Days			Greater			Nonaccrual			Total Past			Current			Total Loans and
	Past Due			Past Due			Than 90						Due and						Leases
							Days and						Nonaccrual
							Accruing						Loans
September 30, 2014
Commercial	$	4,017		$	2,971		$	—		$	14,578		$	21,566		$	8,591,125		$	8,612,691
Commercial real estate mortgages	265			501			—			3,691			4,457			3,560,731			3,565,188
Residential mortgages:
Fixed	—			3,625			6,145			3,911			13,681			1,410,232			1,423,913
Variable	—			5,259			—			2,257			7,516			3,591,784			3,599,300
Total residential mortgages	—			8,884			6,145			6,168			21,197			5,002,016			5,023,213
Real estate construction:
Construction	—			—			—			—			—			565,507			565,507
Land	—			—			—			6,598			6,598			13,127			19,725
Total real estate construction	—			—			—			6,598			6,598			578,634			585,232
Home equity loans and lines of credit	100			1,972			387			4,776			7,235			752,023			759,258
Installment:
Commercial	—			—			—			—			—			303			303
Consumer	280			85			292			42			699			177,801			178,500
Total installment	280			85			292			42			699			178,104			178,803
Lease financing	63			18			—			66			147			623,456			623,603
Total	$	4,725		$	14,431		$	6,824		$	35,919		$	61,899		$	19,286,089		$	19,347,988
(in thousands) (1)	30-59 Days			60-89 Days			Greater			Nonaccrual			Total Past			Current			Total Loans and
	Past Due			Past Due			Than 90						Due and						Leases
							Days and						Nonaccrual
							Accruing						Loans
December 31, 2013
Commercial	$	6,582		$	362		$	—		$	14,248		$	21,192		$	7,541,108		$	7,562,300
Commercial real estate mortgages	1,197			1,633			—			18,449			21,279			3,201,722			3,223,001
Residential mortgages:
Fixed	—			—			379			3,789			4,168			1,436,283			1,440,451
Variable	—			—			—			7,872			7,872			3,105,988			3,113,860
Total residential mortgages	—			—			379			11,661			12,040			4,542,271			4,554,311
Real estate construction:
Construction	—			—			—			5,467			5,467			332,131			337,598
Land	—			797			—			13,600			14,397			15,009			29,406
Total real estate construction	—			797			—			19,067			19,864			347,140			367,004
Home equity loans and lines of credit	—			—			74			5,144			5,218			704,126			709,344
Installment:
Commercial	1			—			—			—			1			361			362
Consumer	10			7			—			32			49			151,544			151,593
Total installment	11			7			—			32			50			151,905			151,955
Lease financing	401			126			—			50			577			601,946			602,523
Total	$	8,191		$	2,925		$	453		$	68,651		$	80,220		$	17,090,218		$	17,170,438
(1)     Commercial loans as of December 31, 2013 have been corrected to include $158.2 million of loans that were previously reported as lease financing.
Credit Quality Monitoring
The Company closely monitors and assesses credit quality and credit risk in the loan and lease portfolio on an ongoing basis. Loan risk classifications are continuously reviewed and updated. The following table provides a summary of the loan and lease portfolio, excluding covered loans, by loan type and credit quality classification as of September 30, 2014 and December 31, 2013. Nonclassified loans generally include those loans that are expected to be repaid in accordance with contractual loan terms. Classified loans are those loans that are classified as substandard or doubtful consistent with regulatory guidelines.
	September 30, 2014									December 31, 2013
(in thousands) (1)	Nonclassified			Classified			Total			Nonclassified			Classified			Total
Commercial	$	8,533,130		$	79,561		$	8,612,691		$	7,416,487		$	145,813		$	7,562,300
Commercial real estate mortgages	3,524,848			40,340			3,565,188			3,139,707			83,294			3,223,001
Residential mortgages:
Fixed	1,396,708			27,205			1,423,913			1,425,087			15,364			1,440,451
Variable	3,567,505			31,795			3,599,300			3,087,636			26,224			3,113,860
Total residential mortgages	4,964,213			59,000			5,023,213			4,512,723			41,588			4,554,311
Real estate construction:
Construction	565,507			—			565,507			332,131			5,467			337,598
Land	13,127			6,598			19,725			15,522			13,884			29,406
Total real estate construction	578,634			6,598			585,232			347,653			19,351			367,004
Home equity loans and lines of credit	728,078			31,180			759,258			687,732			21,612			709,344
Installment:
Commercial	303			—			303			362			—			362
Consumer	177,407			1,093			178,500			151,468			125			151,593
Total installment	177,710			1,093			178,803			151,830			125			151,955
Lease financing	619,664			3,939			623,603			598,821			3,702			602,523
Total	$	19,126,277		$	221,711		$	19,347,988		$	16,854,953		$	315,485		$	17,170,438
(1)     Commercial loans as of December 31, 2013 have been corrected to include $158.2 million of loans that were previously reported as lease financing.
Credit Quality on Covered Loans
The following is a summary of activity in the allowance for losses on covered loans:
	For the three months ended						For the nine months ended
	September 30,						September 30,
(in thousands)	2014			2013			2014			2013
Balance, beginning of period	$	9,103		$	24,414		$	15,922		$	44,781
Provision for losses	589			2,496			3,783			461
Reduction in allowance due to loan removals	(324		)	(1,028		)	(10,337		)	(19,360		)
Balance, end of period	$	9,368		$	25,882		$	9,368		$	25,882
The allowance for losses on covered loans was $9.4 million, $15.9 million and $25.9 million as of September 30, 2014, December 31, 2013 and September 30, 2013, respectively. The Company recorded provision expense of $0.6 million and $3.8 million during the three and nine months ended September 30, 2014, respectively. Provision expense was $2.5 million and $0.5 million on covered loans during the three and nine months ended September 30, 2013, respectively. The Company updates its cash flow projections for covered loans accounted for under ASC 310-30 on a quarterly basis, and may recognize provision expense or reversal of provision for loan losses as a result of that analysis. The provision expense or reversal of provision for losses on covered loans is the result of changes in expected cash flows, both amount and timing, due to actual loan performance and the Company’s revised loan loss and prepayment forecasts. The revisions of these forecasts were based on the results of management’s review of market conditions, the credit quality of outstanding covered loans and the analysis of loan performance data since the acquisition of covered loans. The allowance for losses on covered loans is reversed for any loan removals, which occur when a loan has been fully paid off, fully charged off, sold or transferred to OREO.
Covered loans accounted for under ASC 310-30 are generally considered accruing and performing loans as the loans accrete interest income over the estimated life of the loan when cash flows are reasonably estimable. Accordingly, acquired impaired loans that are contractually past due are still considered to be accruing and performing loans. If the timing and amount of future cash flows is not reasonably estimable, the loans may be classified as nonaccrual loans and interest income is not recognized until the timing and amount of future cash flows can be reasonably estimated. There were no covered loans that were on nonaccrual status as of September 30, 2014 and December 31, 2013.
At September 30, 2014, covered loans that were 30 to 89 days delinquent totaled $2.5 million and covered loans that were 90 days or more past due on accrual status totaled $38.5 million. At December 31, 2013, covered loans that were 30 to 89 days delinquent totaled $15.5 million and covered loans that were 90 days or more past due on accrual status totaled $45.7 million.

Other_Real_Estate_Owned

Other Real Estate Owned	9 Months Ended
	Sep. 30, 2014
Other Real Estate Owned	'
Other Real Estate Owned	'
	Note 6. Other Real Estate Owned
	The following table provides a summary of OREO activity for the three months ended September 30, 2014 and 2013:
		For the three months ended									For the three months ended
		September 30, 2014									September 30, 2013
	(in thousands)	Non-Covered			Covered			Total			Non-Covered			Covered			Total
		OREO			OREO						OREO			OREO
	Balance, beginning of period	$	4,269		$	17,944		$	22,213		$	19,676		$	41,801		$	61,477
	Additions	5,957			1,276			7,233			—			4,008			4,008
	Sales	(83		)	(4,366		)	(4,449		)	(771		)	(14,435		)	(15,206		)
	Valuation adjustments	(28		)	(367		)	(395		)	—			(1,556		)	(1,556		)
	Balance, end of period	$	10,115		$	14,487		$	24,602		$	18,905		$	29,818		$	48,723
	The following table provides a summary of OREO activity for the nine months ended September 30, 2014 and 2013:
		For the nine months ended									For the nine months ended
		September 30, 2014									September 30, 2013
	(in thousands)	Non-Covered			Covered			Total			Non-Covered			Covered			Total
		OREO			OREO						OREO			OREO
	Balance, beginning of period	$	12,611		$	25,481		$	38,092		$	21,027		$	58,276		$	79,303
	Additions	6,068			5,296			11,364			723			17,914			18,637
	Sales	(8,523		)	(14,834		)	(23,357		)	(2,552		)	(39,597		)	(42,149		)
	Valuation adjustments	(41		)	(1,456		)	(1,497		)	(293		)	(6,775		)	(7,068		)
	Balance, end of period	$	10,115		$	14,487		$	24,602		$	18,905		$	29,818		$	48,723
	At September 30, 2014, OREO was $24.6 million and included $14.5 million of covered OREO. At December 31, 2013, OREO was $38.1 million and included $25.5 million of covered OREO. The balance of OREO at September 30, 2014 and December 31, 2013 is net of valuation allowances of $9.9 million and $17.4 million, respectively.
	Covered OREO expenses and valuation write-downs are recorded in the noninterest expense section of the consolidated statements of income and gains or losses on sale of covered OREO are recognized in the noninterest income section. Under the loss sharing agreements, 80 percent of eligible covered OREO expenses, valuation write-downs, and losses on sales are reimbursable to the Company from the FDIC and 80 percent of covered gains on sales are payable to the FDIC. The portion of these expenses and income shared with the FDIC is recorded in FDIC loss sharing income (expense), net in the noninterest income section of the consolidated statements of income.

Borrowed_Funds

Borrowed Funds	9 Months Ended
	Sep. 30, 2014
Borrowed Funds	'
Borrowed Funds	'
	Note 7. Borrowed Funds
	Short-term borrowings consist of funds with remaining maturities of one year or less and long-term debt consists of borrowings with remaining maturities greater than one year. The components of short-term borrowings and long-term debt as of September 30, 2014 and December 31, 2013 are provided below:
		September 30,		December 31,
	(in thousands) (1)	2014		2013
	Short-term borrowings
	Current portion of nonrecourse debt (5)	$	4,635	$	3,889
	Total short-term borrowings	$	4,635	$	3,889
	Long-term debt
	Senior notes:
	City National Corporation - 5.25% Senior Notes Due September 2020	$	299,521	$	299,463
	Subordinated debt:
	City National Bank - 9.00% Subordinated Notes Due July 2019 (2)	—		50,000
	City National Bank - 9.00% Subordinated Notes Due August 2019	75,000		75,000
	City National Bank - Fixed and Floating Subordinated Notes due August 2019 (3)	—		55,000
	City National Bank - 5.375% Subordinated Notes Due July 2022	149,994		149,994
	Junior subordinated debt:
	Floating Rate Business Bancorp Capital Trust I Securities due November 2034 (4)	5,155		5,155
	Nonrecourse debt (5)	91,941		91,388
	Other long-term debt (6)	9,823		9,968
	Total long-term debt	$	631,434	$	735,968
	(1)The carrying value of certain borrowed funds is net of discount which is being amortized into interest expense.
	(2)These notes bore a fixed interest rate of 9 percent for the initial five years from the date of issuance (July 15, 2009). The Bank redeemed the notes in accordance with their terms and procedures on July 15, 2014.
	(3)These notes bore a fixed interest rate of 9 percent for the initial five years from the date of issuance (August 12, 2009). The Bank redeemed the notes in accordance with their terms and procedures on August 12, 2014.
	(4)These floating rate securities pay interest of three-month LIBOR plus 1.965 percent which is reset quarterly.  As of September 30, 2014, the interest rate was approximately 2.20 percent.
	(5)Nonrecourse debt bears interest at an average rate of 3.85 percent as of September 30, 2014 and has maturity dates ranging from November 2014 to February 2023.
	(6)Other long-term debt includes a note payable that bears a fixed interest rate of 5.64 percent and is scheduled to mature on June 2017.
	The Company holds debt affiliated with First American Equipment Finance (“FAEF”), its wholly-owned equipment finance subsidiary. FAEF assigns the future rentals of certain lease financing loans to financial institutions on a nonrecourse basis at fixed interest rates. In return for future minimum lease rentals assigned, FAEF receives a discounted cash payment. Proceeds from discounting are reflected in the table above as nonrecourse debt.

Shareholders_Equity

Shareholders' Equity	9 Months Ended
	Sep. 30, 2014
Shareholders' Equity	'
Shareholders' Equity	'
	Note 8. Shareholders’ Equity
	On November 7, 2013, the Corporation issued 4 million depositary shares, each representing a 1/40th interest in a share of 6.75 percent Series D fixed-to-floating rate non-cumulative perpetual preferred stock with a liquidation preference of $1,000 per share (equivalent to $25.00 per depositary share). Net proceeds, after issuance cost, were approximately $97.7 million. Dividends on the preferred stock are payable quarterly, in arrears, if declared by the Corporation’s Board of Directors at an annual rate of 6.75 percent. Effective for the February 7, 2024 dividend payment, the annual rate will adjust to three-month LIBOR plus 4.052 percent. The preferred stock has no maturity date and may be redeemed in whole or in part at the option of the Corporation on any dividend payment date after 10 years from the date of issuance, or in whole but not in part within 90 days following a determination by the Corporation that the Corporation will not be entitled to treat the full liquidation preference amount then outstanding as “tier 1 capital” for purposes of the capital adequacy guidelines of the Federal Reserve (or its equivalent).
	At September 30, 2014 and December 31, 2013, AOCI was comprised of net unrealized losses on securities available-for-sale of $7.6 million and $15.6 million, respectively.
	The following table presents the tax effects allocated to each component of other comprehensive income (loss) for the three and nine month periods ended September 30, 2014 and 2013:
		For the three months ended									For the three months ended
		September 30, 2014									September 30, 2013
	(in thousands)	Pre-tax			Tax expense			Net-of-tax			Pre-tax			Tax expense			Net-of-tax
					(benefit)									(benefit)
	Securities available-for-sale:
	Net unrealized losses arising during the period	$	(16,386	)	$	(6,839	)	$	(9,547	)	$	(23,334	)	$	(9,761	)	$	(13,573	)
	Reclassification adjustment for net gains included in net income (1)	(7		)	(3		)	(4		)	(5,788		)	(2,421		)	(3,367		)
	Non-credit related impairment loss	(243		)	(102		)	(141		)	—			—			—
	Total securities available-for-sale	(16,636		)	(6,944		)	(9,692		)	(29,122		)	(12,182		)	(16,940		)
	Total other comprehensive loss	$	(16,636	)	$	(6,944	)	$	(9,692	)	$	(29,122	)	$	(12,182	)	$	(16,940	)
		For the nine months ended									For the nine months ended
		September 30, 2014									September 30, 2013
	(in thousands)	Pre-tax			Tax expense			Net-of-tax			Pre-tax			Tax expense			Net-of-tax
					(benefit)									(benefit)
	Securities available-for-sale:
	Net unrealized gains (losses) arising during the period	$	21,646		$	9,060		$	12,586		$	(155,089	)	$	(64,874	)	$	(90,215	)
	Reclassification adjustment for net gains included in net income (1)	(7,558		)	(3,162		)	(4,396		)	(11,460		)	(4,794		)	(6,666		)
	Non-credit related impairment loss	(243		)	(102		)	(141		)	—			—			—
	Total securities available-for-sale	13,845			5,796			8,049			(166,549		)	(69,668		)	(96,881		)
	Net change on cash flow hedges	—			—			—			(56		)	—			(56		)
	Total other comprehensive income (loss)	$	13,845		$	5,796		$	8,049		$	(166,605	)	$	(69,668	)	$	(96,937	)
	(1)     Recognized in Gain on sale of securities in the consolidated statements of income.
	The following table summarizes the Company’s share repurchases for the three months ended September 30, 2014. All repurchases relate to shares withheld or previously owned shares used to pay taxes due upon vesting of restricted stock. There were no issuer repurchases of the Corporation’s common stock as part of its repurchase plan for the three months ended September 30, 2014.
	Period	Total Number		Average
		of Shares		Price Paid
		(or Units)		per Share
		Purchased		(or Unit)
	July 1, 2014 to July 31, 2014	2,085		$	74.64
	August 1, 2014 to August 31, 2014	12		75.88
	September 1, 2014 to September 30, 2014	3,003		77.46
	Total share repurchases	5,100		76.3

Earnings_per_Common_Share

Earnings per Common Share	9 Months Ended
	Sep. 30, 2014
Earnings per Common Share	'
Earnings per Common Share	'
	Note 9. Earnings per Common Share
	The Company applies the two-class method of computing basic and diluted EPS. Under the two-class method, EPS is determined for each class of common stock and participating security according to dividends declared and participation rights in undistributed earnings. The Company grants restricted stock and restricted stock units under a share-based compensation plan that qualify as participating securities.
	The computation of basic and diluted EPS is presented in the following table:
		For the three months ended				For the nine months ended
		September 30,				September 30,
	(in thousands, except per share amounts)	2014		2013		2014		2013
	Basic EPS:
	Net income attributable to City National Corporation	$	68,651	$	63,633	$	189,863	$	174,897
	Less: Dividends on preferred stock	4,093		2,407		12,281		7,219
	Net income available to common shareholders	$	64,558	$	61,226	$	177,582	$	167,678
	Less: Earnings allocated to participating securities	632		688		1,808		1,975
	Earnings allocated to common shareholders	$	63,926	$	60,538	$	175,774	$	165,703
	Weighted average common shares outstanding	55,031		54,274		54,893		54,039
	Basic earnings per common share	$	1.16	$	1.12	$	3.20	$	3.07
	Diluted EPS:
	Earnings allocated to common shareholders (1)	$	63,932	$	60,543	$	175,790	$	165,716
	Weighted average common shares outstanding	55,031		54,274		54,893		54,039
	Dilutive effect of equity awards	734		546		723		425
	Weighted average diluted common shares outstanding	55,765		54,820		55,616		54,464
	Diluted earnings per common share	$	1.15	$	1.1	$	3.16	$	3.04
	(1)     Earnings allocated to common shareholders for basic and diluted EPS may differ under the two-class method as a result of adding common stock equivalents for options to dilutive shares outstanding, which alters the ratio used to allocate earnings to common shareholders and participating securities for the purposes of calculating diluted EPS.
	The average price of the Company’s common stock for the period is used to determine the dilutive effect of outstanding stock options. Antidilutive stock options are not included in the calculation of diluted EPS. There were 0.7 million and 1.0 million average outstanding stock options that were antidilutive for the three months ended September 30, 2014 and 2013, respectively. There were 0.7 million and 1.9 million average outstanding stock options that were antidilutive for the nine months ended September 30, 2014 and 2013, respectively.

ShareBased_Compensation

Share-Based Compensation	9 Months Ended
	Sep. 30, 2014
Share-Based Compensation	'
Share-Based Compensation	'
	Note 10. Share-Based Compensation
	On September 30, 2014, the Company had one share-based compensation plan, the Amended and Restated City National Corporation 2008 Omnibus Plan (the “Plan”), which was originally approved by the Company’s shareholders on April 23, 2008. No new awards have been or will be granted under predecessor plans since the adoption of the Plan. The Plan permits the grant of stock options, restricted stock, restricted stock units, cash-settled restricted stock units, performance shares, performance share units, performance units and stock appreciation rights, or any combination thereof, to the Company’s eligible employees and non-employee directors. No grants of performance shares, performance share units or stock appreciation rights had been made as of September 30, 2014. At September 30, 2014, there were approximately 2.8 million shares available for future grants. Refer to the Company’s Annual Report on Form 10-K for the year ended December 31, 2013 for further discussion of the Company’s share-based compensation plan.
	The compensation cost recognized for all share-based awards was $5.5 million and $16.1 million for the three and nine months ended September 30, 2014, respectively, compared with $5.7 million and $16.3 million for the three and nine months ended September 30, 2013, respectively. The total income tax benefit recognized in the consolidated statements of income for share-based compensation arrangements was $2.3 million and $6.7 million for the three and nine months ended September 30, 2014, respectively, compared with $2.4 million and $6.8 million for the three and nine months ended September 30, 2013, respectively. The Company received $21.7 million and $25.0 million in cash for the exercise of stock options during the nine months ended September 30, 2014 and 2013, respectively. The actual tax benefit realized for the tax deductions from stock option exercises was $3.2 million and $4.2 million for the nine months ended September 30, 2014 and 2013, respectively.
	To estimate the fair value of stock option awards, the Company uses the Black-Scholes methodology, which incorporates the assumptions summarized in the table below:
		For the three months ended				For the nine months ended
		September 30,				September 30,
		2014		2013		2014		2013
	Weighted-average volatility	27.08	%	—		27.35	%	28.12	%
	Dividend yield	1.72	%	—		1.79	%	2.15	%
	Expected term (in years)	5.46		—		6.06		6.15
	Risk-free interest rate	1.97	%	—		1.99	%	1.24	%
	Using the Black-Scholes methodology, the weighted-average grant-date fair values of options granted during the nine months ended September 30, 2014 and 2013 were $17.93 and $12.57, respectively. The total intrinsic value of options exercised during the nine months ended September 30, 2014 and 2013 was $7.7 million and $10.2 million, respectively.
	A summary of option activity and related information for the nine months ended September 30, 2014 is presented below:
				Weighted						Weighted
				Average			Aggregate			Average
		Number of		Exercise			Intrinsic			Remaining
		Shares		Price			Value			Contractual
	Options	(in thousands)		(per share)			(in thousands) (1)			Term
	Outstanding at January 1, 2014	4,075		$	55.5
	Granted	455		73.65
	Exercised	(390	)	55.71
	Forfeited or expired	(51	)	58.52
	Outstanding at September 30, 2014	4,089		$	57.46		$	74,730		5.53
	Exercisable at September 30, 2014	2,801		$	56.11		$	55,037		4.23
	(1)     Includes in-the-money options only.
	A summary of changes in unvested options and related information for the nine months ended September 30, 2014 is presented below:
				Weighted Average
		Number of		Grant Date
		Shares		Fair Value
	Unvested Options	(in thousands)		(per share)
	Unvested at January 1, 2014	1,425		$	13.64
	Granted	455		17.93
	Vested	(552	)	14.58
	Forfeited	(40	)	13.13
	Unvested at September 30, 2014	1,288		$	14.77
	The number of options vested during the nine months ended September 30, 2014 and 2013 was 551,992 and 681,816, respectively. The total fair value of options vested during the nine months ended September 30, 2014 and 2013 was $8.1 million and $8.4 million, respectively. As of September 30, 2014, there was $13.2 million of unrecognized compensation cost related to unvested stock options granted under the Company’s plans. That cost is expected to be recognized over a weighted-average period of 2.5 years.
	A summary of changes in restricted stock and related information for the nine months ended September 30, 2014 is presented below:
				Weighted Average
		Number of		Grant Date
		Shares		Fair Value
	Restricted Stock (1)	(in thousands)		(per share)
	Unvested at January 1, 2014	608		$	53.03
	Granted	119		73.64
	Vested	(181	)	44.43
	Forfeited	(11	)	55.88
	Unvested at September 30, 2014	535		$	60.47
	(1)     Includes restricted stock units.
	Restricted stock is valued at the closing price of the Company’s stock on the date of award. The weighted-average grant-date fair value of restricted stock granted during the nine months ended September 30, 2014 and 2013 was $73.64 and $56.01, respectively. The number of restricted shares vested during the nine months ended September 30, 2014 and 2013 was 180,799 and 198,268, respectively. The total fair value of restricted stock vested during the nine months ended September 30, 2014 and 2013 was $8.0 million and $9.1 million, respectively. As of September 30, 2014, the unrecognized compensation cost related to restricted stock granted under the Company’s plans was $17.0 million. That cost is expected to be recognized over a weighted-average period of 2.9 years.
	Cash-settled restricted stock units are initially valued at the closing price of the Company’s stock on the date of award. They are subsequently remeasured to the closing price of the Company’s stock at each reporting date until settlement. A summary of changes in cash-settled restricted stock units for the nine months ended September 30, 2014 is presented below:
		Number of
		Shares
	Cash-Settled Restricted Stock Units	(in thousands)
	Unvested at January 1, 2014	190
	Granted	15
	Vested	(24	)
	Forfeited	(4	)
	Unvested at September 30, 2014	177

Derivative_Instruments

Derivative Instruments	9 Months Ended
	Sep. 30, 2014
Derivative Instruments	'
Derivative Instruments	'
	Note 11. Derivative Instruments
	The Company may use interest-rate swaps to mitigate interest-rate risk associated with changes to (1) the fair value of certain fixed-rate deposits and borrowings (fair value hedges) and (2) certain cash flows related to future interest payments on variable rate loans (cash flow hedges). Interest-rate swap agreements involve the exchange of fixed and variable rate interest payments between counterparties based upon a notional principal amount and maturity date. The Company recognizes derivatives as assets or liabilities on the consolidated balance sheets at their fair value. The treatment of changes in the fair value of derivatives depends on the character of the transaction. The Company also offers various derivative products to clients and enters into derivative transactions in due course. These transactions are not linked to specific Company assets or liabilities in the consolidated balance sheets or to forecasted transactions in a hedge relationship and, therefore, do not qualify for hedge accounting.
	The following table summarizes the fair value and balance sheet classification of derivative instruments as of September 30, 2014 and December 31, 2013. The notional amount of the contract is not recorded on the consolidated balance sheets, but is used as the basis for determining the amount of interest payments to be exchanged between the counterparties. If a counterparty fails to perform, the Company’s counterparty credit risk is equal to the amount reported as a derivative asset.
	Notional Amounts and Fair Values of Derivative Instruments
		September 30, 2014									December 31, 2013
	(in millions) (1)	Notional			Derivative			Derivative			Notional			Derivative		Derivative
		Amount			Assets			Liabilities			Amount			Assets		Liabilities
	Derivatives not designated as hedging instruments
	Interest rate contracts:
	Swaps	$	2,975.30		$	37.9		$	37.8		$	2,769.40		$	42.7	$	41.7
	Interest-rate caps, floors and collars	310.2			0.9			0.9			251.6			0.5		0.5
	Options purchased	0.2			0.1			0.2			1.5			0.6		0.6
	Options written	0.2			—			—			1.5			—		—
	Total interest-rate contracts	$	3,285.90		$	38.9		$	38.9		$	3,024.00		$	43.8	$	42.8
	Option contracts	$	2.1		$	0.3		$	—		$	1.9		$	0.4	$	—
	Foreign exchange contracts:
	Spot and forward contracts	$	651.6		$	4.8		$	5.7		$	461.4		$	3.5	$	3.3
	Options purchased	3			—			—			6.3			—		—
	Options written	3			0.2			0.2			6.3			0.2		0.2
	Total foreign exchange contracts	$	657.6		$	5		$	5.9		$	474		$	3.7	$	3.5
	Equity warrants	$	1.8		$	0.7		$	—		$	—		$	—	$	—
	Total derivatives not designated as hedging instruments	$	3,947.40		$	44.9		$	44.8		$	3,499.90		$	47.9	$	46.3
	(1)     The Company offsets mark-to-market adjustments, interest receivable, interest payable and cash collateral received on interest-rate swaps that are executed with the same counterparty under a master netting agreement, and reports the net balance in other assets or other liabilities in the consolidated balance sheets. For purposes of this disclosure, mark-to-market adjustments, interest receivable and interest payable are presented on a gross basis and cash collateral is excluded from fair value amounts.
	Derivatives Designated as Hedging Instruments
	The Company had no hedging instruments as of September 30, 2014 and December 31, 2013.
	The periodic net settlement of interest-rate swaps is recorded as an adjustment to interest income or interest expense. There was no net interest income recognized on interest rate swaps for the three and nine months ended September 30, 2014. Interest rate swaps increased net interest income by $1.1 million for the nine months ended September 30, 2013.
	Changes in fair value of the effective portion of cash flow hedges are reported in AOCI. When the cash flows associated with the hedged item are realized, the gain or loss included in AOCI is recognized in Interest income on loans and leases, the same location in the consolidated statements of income as the income on the hedged item. There were no cash flow hedges outstanding during the nine-month periods ended September 30, 2014 and 2013. The $0.1 million of gains on cash flow hedges reclassified from AOCI to interest income for the nine months ended September 30, 2013 represents the amortization of deferred gains on cash flow hedges that were terminated in 2010 prior to their respective maturity dates for which the hedge transactions had yet to occur. The balance of deferred gain on terminated swaps was fully amortized in 2013.
	Derivatives Not Designated as Hedging Instruments
	Derivative contracts not designated as hedges are composed primarily of interest-rate contracts with certain commercial clients that are offset by paired trades with unrelated bank counterparties. The Company also enters into foreign-exchange contracts with its clients and counterparty banks primarily for the purpose of offsetting or economically hedging the clients’ transaction and economic exposures arising out of commercial transactions. The Company also obtains equity warrants in association with certain lending transactions. Derivative contracts not designated as hedges are carried at fair value each reporting period with changes in fair value recorded as a part of Noninterest income in the consolidated statements of income.
	The table below provides the amount of gains and losses on these derivative contracts for the three and nine months ended September 30, 2014 and 2013:
	(in millions)	Location in Consolidated		For the three months ended						For the nine months ended
	Derivatives Not Designated			September 30,						September 30,
	as Hedging Instruments	Statements of Income		2014			2013			2014			2013
	Interest-rate contracts	Other noninterest income		$	—		$	(0.3	)	$	(1.0	)	$	0.9
	Option contracts	Other noninterest income		0.1			(0.1		)	0.1			0.3
	Foreign exchange contracts	International services income		8.7			7.2			24.2			20.4
	Equity warrants	Other noninterest income		—			—			0.1			—
	Total income			$	8.8		$	6.8		$	23.4		$	21.6
	In the course of negotiating credit facilities, the Company may obtain rights to acquire stock in the form of equity warrants in primarily private, venture-backed technology companies. The warrants grant the Company an option to purchase a specific number of shares of stock in the underlying company at a specific price within a specific time period. The warrant agreements typically contain a net share settlement provision (cashless exercise) which gives the Company the option to receive at exercise a number of shares equal to the intrinsic value of the warrant divided by the share price. Equity warrants are accounted for as derivatives under ASC Topic 815, Derivatives and Hedging, and are recorded as derivative assets at their estimated fair value on the grant date. The warrant portfolio is reviewed quarterly for changes in fair value. Subsequent changes in the fair value of warrants are recognized in Other noninterest income. If a warrant is exercised or paid out for cash, the gain is recorded in Other noninterest income.
	Credit Risk Exposure and Collateral
	The Company’s swap agreements require the deposit of cash or marketable debt securities as collateral based on certain risk thresholds. These requirements apply individually to the Corporation and to the Bank. Additionally, certain of the Company’s swap contracts contain security agreements that include credit-risk-related contingent features. Under these agreements, the collateral requirements are based on the Company’s credit rating from the major credit rating agencies. The amount of collateral required may vary by counterparty based on a range of credit ratings that correspond with exposure thresholds established in the derivative agreements. If the credit ratings on the Company’s debt were to fall below the level associated with a particular exposure threshold and the derivatives with a counterparty are in a net liability position that exceeds that threshold, the counterparty could request immediate payment or delivery of collateral for the difference between the net liability amount and the exposure threshold. The aggregate fair value of all derivative instruments with credit-risk-related contingent features that were in a net liability position on September 30, 2014 was $9.0 million. The Company delivered collateral in the form of securities valued at $4.1 million and cash totaling $17.7 million on swap agreements that had credit-risk contingent features that were in a net liability position at September 30, 2014.
	The Company’s interest-rate swaps had $1.0 million and $2.4 million of credit risk exposure at September 30, 2014 and December 31, 2013, respectively. The credit exposure represents the cost to replace, on a present value basis and at current market rates, all contracts by trading counterparty having an aggregate positive market value, net of margin collateral received. The Company enters into master netting agreements with swap counterparties to mitigate credit risk. Under these agreements, the net amount due from or payable to each counterparty is settled on the contract payment date. No collateral had been received from swap counterparties at September 30, 2014 and December 31, 2013. The Company delivered collateral valued at $7.6 million on swap agreements that did not have credit-risk contingent features at September 30, 2014.
	See Note 12, Balance Sheet Offsetting, of the Notes to the Unaudited Consolidated Financial Statements for additional information about the Company’s derivative instruments subject to master netting agreements.

Balance_Sheet_Offsetting

Balance Sheet Offsetting	9 Months Ended
	Sep. 30, 2014
Balance Sheet Offsetting	'
Balance Sheet Offsetting	'
	Note 12. Balance Sheet Offsetting
	Assets and liabilities relating to certain financial instruments, including derivatives, securities purchased under resale agreements (“reverse repurchase agreements”) and securities sold under repurchase agreements (“repurchase agreements”), may be eligible for offset in the consolidated balance sheet as permitted under accounting guidance. The Company is party to transactions involving derivative instruments that are subject to enforceable master netting arrangements or similar agreements. Under these agreements, the Company may have the right to net settle multiple contracts with the same counterparty. Certain derivative transactions may require the Company to receive or pledge marketable debt securities as collateral based on certain risk thresholds. The Company also enters into reverse repurchase agreements to invest available liquidity and collateral swap agreements. Under reverse repurchase agreements the Company has the right to claim securities collateral if the counterparty fails to perform. Collateral swap agreements involve the exchange of securities collateral under simultaneous repurchase and reverse repurchase agreements with the same bank counterparty. These agreements have the same principal amounts, inception dates and maturity dates and have been offset against each other in the balance sheet as permitted under the netting provisions of ASC Topic 210-20-45. Securities swaps totaled $500.0 million at September 30, 2014. At September 30, 2014, the Company had delivered collateral of approximately $531.0 million on the repurchase agreement and accepted collateral of approximately $526.5 million on the reverse repurchase agreement. The collateral consisted of agency mortgage-backed securities. Securities that have been pledged by counterparties as collateral are not recorded in the Company’s consolidated balance sheet unless the counterparty defaults. Securities that have been pledged by the Company to counterparties continue to be reported in the Company’s consolidated balance sheet unless the Company defaults.
	The Company also offers various derivative products to clients and enters into derivative transactions in due course. These derivative contracts are offset by paired trades with unrelated bank counterparties. Certain derivative transactions with clients are not subject to master netting arrangements and have been excluded from the balance sheet offsetting table below.
	The following table provides information about financial instruments that are eligible for offset at September 30, 2014 and December 31, 2013:
		Gross		Gross			Net Amount		Gross Amounts
							Presented		Not Offset in the
									Balance Sheet
	(in thousands)	Amount		Amount			in the		Securities			Cash			Net
		Recognized		Offset			Balance Sheet		Collateral			Collateral			Amount
	September 30, 2014
	Financial assets:
	Reverse repurchase agreements	$	700,462	$	(500,156	)	$	200,306	$	(200,000	)	$	—		$	306
	Derivatives not designated as hedging instruments	10,838		(5,318		)	5,520		—			—			5,520
	Total financial assets	$	711,300	$	(505,474	)	$	205,826	$	(200,000	)	$	—		$	5,826
	Financial liabilities:
	Repurchase agreements	$	500,156	$	(500,156	)	$	—	$	—		$	—		$	—
	Derivatives not designated as hedging instruments	39,432		(5,318		)	34,114		(11,684		)	(17,707		)	4,723
	Total financial liabilities	$	539,588	$	(505,474	)	$	34,114	$	(11,684	)	$	(17,707	)	$	4,723
	December 31, 2013
	Financial assets:
	Reverse repurchase agreements	$	200,000	$	—		$	200,000	$	(200,000	)	$	—		$	—
	Derivatives not designated as hedging instruments	18,749		(13,323		)	5,426		—			—			5,426
	Total financial assets	$	218,749	$	(13,323	)	$	205,426	$	(200,000	)	$	—		$	5,426
	Financial liabilities:
	Derivatives not designated as hedging instruments	$	32,193	$	(13,323	)	$	18,870	$	(12,376	)	$	(7,761	)	$	(1,267	)
	Total financial liabilities	$	32,193	$	(13,323	)	$	18,870	$	(12,376	)	$	(7,761	)	$	(1,267	)

Income_Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2014
Income Taxes	'
Income Taxes	'
	Note 13. Income Taxes
	The Company recognized income tax expense of $34.4 million and $90.5 million for the three and nine months ended September 30, 2014, respectively. The Company recognized income tax expense of $27.1 million and $73.7 million for the same periods in 2013.
	The Company recognizes accrued interest and penalties relating to uncertain tax positions as an income tax provision expense. The Company recognized a benefit on interest and penalties of $0.3 million and $0.4 million for the nine months ended September 30, 2014 and 2013, respectively. The Company had approximately $2.7 million and $3.0 million of accrued interest and penalties as of September 30, 2014 and December 31, 2013, respectively.
	The Company and its subsidiaries file federal and various state income tax returns. The Company is currently being audited by the Internal Revenue Service (“IRS”) for the tax year 2014. The Company is also under audit with the California Franchise Tax Board for the tax years 2005 to 2007. The financial statement impact resulting from completion of these audits is not expected to be material.
	From time to time, there may be differences in opinion with respect to the tax treatment of certain transactions. If a tax position which was previously recognized on the consolidated financial statements is no longer more likely than not to be sustained upon a challenge from the taxing authorities, the tax benefit from the tax position will be derecognized. The Company did not have any material tax positions for which previously recognized benefits were derecognized during the nine month period ended September 30, 2014.

Employee_Benefit_Plans

Employee Benefit Plans	9 Months Ended
	Sep. 30, 2014
Employee Benefit Plans	'
Employee Benefit Plans	'
	Note 14. Employee Benefit Plans
	Defined Contribution Plan
	The Company has a profit-sharing retirement plan with an Internal Revenue Code Section 401(k) feature covering eligible employees. Employer contributions are made annually into a trust fund and are allocated to participants based on their salaries. The profit sharing contribution requirement is based on a percentage of annual operating income subject to a percentage of salary cap. Eligible employees may contribute up to 50 percent of their salary to the 401(k) plan, but not more than the maximum allowed under IRS regulations. The Company matches 50 percent of the first 6 percent of covered compensation. The Company recorded total profit sharing and matching contribution expense of $6.1 million and $16.8 million for the three and nine months ended September 30, 2014, respectively. Profit sharing and matching contribution expense was $5.5 million and $15.5 million for the same periods in 2013, respectively.
	Deferred Compensation Plan
	The Company offers a deferred compensation plan for eligible employees and non-employee directors. Participants under the employee plan may make an annual irrevocable election to defer a portion of base salary and up to 100 percent of commission and incentive compensation while employed with the Company. Participants under the non-employee director plan also may make an annual irrevocable election to defer all or part of annual retainers, annual awards, committee chair retainers and meeting fees (collectively, “directors’ fees”) until board service with the Company ceases. The deferred compensation plans are nonqualified plans under IRS regulations. Deferrals are made on a pretax basis and are allocated among the investment crediting options available under the plans as directed by the plan participants. The Company informally funds plan benefits through the purchase of life insurance policies which are recorded in Other assets on the consolidated balance sheets. Participant deferrals are recorded in Other liabilities on the consolidated balance sheets. Employee salaries and non-employee directors’ fees deferred under the plan are charged to Salaries and employee benefits and Other operating expense, respectively, on the consolidated statements of income. Earnings on plan assets, net of benefits payable to plan participants, are reported in Salaries and employee benefits on the consolidated statements of income, and were $0.1 million and $0.6 million for the three and nine months ended September 30, 2014, respectively. Earnings on plan assets, net of benefits payable to plan participants, were $0.2 million and $0.7 million for the same periods in 2013, respectively.

Contingencies

Contingencies	9 Months Ended
	Sep. 30, 2014
Contingencies	'
Contingencies	'
	Note 15. Contingencies
	In the normal course of business, the Company issues financial guarantees in the form of letters of credit. Standby letters of credit are commitments issued by the Company to guarantee the obligations of its customer to beneficiaries. Commercial letters of credit are issued on behalf of customers to ensure payment in connection with trade transactions. Exposure to credit loss in the event of nonperformance by the other party to the letters of credit is represented by the contractual notional amount. At September 30, 2014, the Company had $683.4 million in letters of credit, of which $577.9 million relate to standby letters of credit and $105.5 million relate to commercial letters of credit. The Company had $733.5 million outstanding in letters of credit at December 31, 2013, of which $617.3 million relate to standby letters of credit and $116.2 million relate to commercial letters of credit.
	In connection with the liquidation of an investment acquired in a previous bank merger, the Company has an outstanding long-term indemnity. The maximum liability under the indemnity is $23.0 million, but the Company does not expect to make any payments of more than nominal amounts under the terms of this indemnity.

Variable_Interest_Entities

Variable Interest Entities	9 Months Ended
	Sep. 30, 2014
Variable Interest Entities	'
Variable Interest Entities	'
	Note 16. Variable Interest Entities
	The Company holds ownership interests in certain special-purpose entities formed to provide affordable housing. The Company evaluates its interest in these entities to determine whether they meet the definition of a VIE and whether the Company is required to consolidate these entities. The Company is not the primary beneficiary of the affordable housing VIEs in which it holds interests and is therefore not required to consolidate these entities. The investment in these entities is initially recorded at cost, which approximates the maximum exposure to loss as a result of the Company’s involvement with these unconsolidated entities. Subsequently, the carrying value is amortized over the stream of available tax credits and benefits. The Company expects to recover its investments over time, primarily through realization of federal low-income housing tax credits. The balance of the investments in these entities was $203.2 million and $188.2 million at September 30, 2014 and December 31, 2013, respectively, and is included in Affordable housing investments in the consolidated balance sheets. Unfunded commitments for affordable housing investments were $74.3 million at September 30, 2014. These unfunded commitments are recorded in Other liabilities in the consolidated balance sheets.
	Of the affordable housing investments held as of September 30, 2014, the Company had a significant variable interest in four affordable housing partnerships. These interests were acquired at various times from 1998 to 2001. The Company’s maximum exposure to loss as a result of its involvement with these entities is limited to the $0.7 million aggregate carrying value of these investments at September 30, 2014. There were no unfunded commitments for these affordable housing investments at September 30, 2014.
	The Company also has ownership interests in several private equity and alternative investment funds that are VIEs. The Company is not a primary beneficiary and, therefore, is not required to consolidate these VIEs. The investment in these entities is carried at cost and net of impairments, which approximates the maximum exposure to loss as a result of the Company’s involvement with these entities. The Company expects to recover its investments over time, primarily through the allocation of fund income, gains or losses on the sale of fund assets, dividends or interest income. The balance in these entities was $29.0 million and $34.0 million at September 30, 2014 and December 31, 2013, respectively, and is included in Other assets in the consolidated balance sheets. Income associated with these investments is reported in Other noninterest income in the consolidated statements of income.

Noncontrolling_Interest

Noncontrolling Interest	9 Months Ended
	Sep. 30, 2014
Noncontrolling Interest	'
Noncontrolling Interest	'
	Note 17. Noncontrolling Interest
	In accordance with ASC Topic 810, Consolidation, and EITF Topic D-98, Classification and Measurement of Redeemable Securities (“Topic D-98”), the Company reports noncontrolling interest in its majority-owned affiliates as Redeemable noncontrolling interest in the mezzanine section between liabilities and equity in the consolidated financial statements. Topic D-98 specifies that securities that are redeemable at the option of the holder or outside the control of the issuer are not considered permanent equity and should be classified in the mezzanine section.
	The Corporation holds a majority ownership interest in four investment management and wealth advisory affiliates that it consolidates. In general, the management of each majority-owned affiliate has a significant noncontrolling ownership position in its firm and supervises the day-to-day operations of the affiliate. The Corporation is in regular contact with each affiliate regarding its operations and is an active participant in the management of the affiliates through its position on each firm’s board.
	The Corporation’s investment in each affiliate is governed by operating agreements and other arrangements which provide the Corporation certain rights, benefits and obligations. The Corporation determines the appropriate method of accounting based upon these agreements and the factors contained therein. All majority-owned affiliates that have met the criteria for consolidation are included in the consolidated financial statements. All material intercompany balances and transactions are eliminated. The Company applies the equity method of accounting for certain investments where it holds a noncontrolling interest. For equity method investments, the Company’s portion of income before taxes is included in Trust and investment fees in the consolidated statements of income.
	As of September 30, 2014, affiliate noncontrolling owners held equity interests with an estimated fair value of $47.2 million. This estimate reflects the maximum obligation to purchase equity interests in the affiliates. The events which would require the Company to purchase the equity interests may occur in the near term or over a longer period of time. The terms of the put provisions vary by agreement, but the value of the put is at the approximate fair value of the interests. The parent company carries key man life insurance policies to fund a portion of these conditional purchase obligations in the event of the death of certain key holders.
	The following is a summary of activity for redeemable noncontrolling interest for the nine months ended September 30, 2014 and 2013:
		For the nine months ended
		September 30,
	(in thousands)	2014			2013
	Balance, beginning of period	$	39,768		$	41,112
	Net income	2,056			1,657
	Distributions to redeemable noncontrolling interest	(2,366		)	(1,285		)
	Additions and redemptions, net	(403		)	(1,625		)
	Adjustments to fair value	8,167			(19		)
	Balance, end of period	$	47,222		$	39,840

Segment_Results

Segment Results	9 Months Ended
	Sep. 30, 2014
Segment Results	'
Segment Results	'
	Note 18. Segment Results
	The Company has three reportable segments: Commercial and Private Banking, Wealth Management and Other. The factors considered in determining whether individual operating segments could be aggregated include that the operating segments: (i) offer the same products and services, (ii) offer services to the same types of clients, (iii) provide services in the same manner and (iv) operate in the same regulatory environment. The management accounting process measures the performance of the operating segments based on the Company’s management structure and is not necessarily comparable with similar information for other financial services companies. If the management structures and/or the allocation process changes, allocations, transfers and assignments may change.
	The Commercial and Private Banking reportable segment is the aggregation of the Commercial and Private Banking, Real Estate, Entertainment, Corporate Banking, Core Branch Banking and FAEF operating segments. The Commercial and Private Banking segment provides banking products and services, including commercial and mortgage lending, lines of credit, equipment lease financing, deposits, cash management services, international trade finance and letters of credit to small and medium-sized businesses, entrepreneurs and affluent individuals. This segment primarily serves clients in California, New York, Nevada, Tennessee and Georgia. FAEF serves clients nationwide.
	The Wealth Management segment includes the Corporation’s investment advisory affiliates and the Bank’s Wealth Management Services. The asset management affiliates and the Wealth Management division of the Bank make the following investment advisory and wealth management resources and expertise available to individual and institutional clients: investment management, wealth advisory services, brokerage, retirement, estate and financial planning and personal, business, custodial and employee trust services. The Wealth Management segment also advises and makes available mutual funds under the name of City National Rochdale Funds. Both the asset management affiliates and the Bank’s Wealth Management division provide proprietary and nonproprietary products and offer a full spectrum of investment solutions in multiple asset classes and investment styles, including fixed-income instruments, mutual funds, domestic and international equities, and alternative investments such as hedge funds. This segment serves clients nationwide.
	The Other segment includes all other subsidiaries of the Company, the corporate administration departments, including the Treasury Department and the Asset Liability Funding Center, that have not been allocated to the other segments, and inter-segment eliminations for revenue recognized in multiple segments for management reporting purposes. The Company uses traditional matched-maturity funds transfer pricing methodology. However, both positive and negative variances occur over time when transfer pricing non-maturing balance sheet items such as demand deposits. These variances, offset in the Funding Center, are evaluated at least annually by management and allocated back to the business segments as deemed necessary.
	Business segment earnings are the primary measure of the segment’s performance as evaluated by management. Business segment earnings include direct revenue and expenses of the segment as well as corporate and inter-company cost allocations. Allocations of corporate expenses, such as data processing and human resources, are calculated based on estimated activity or usage levels for the fiscal year. Costs associated with intercompany support and services groups, such as Operational Services, are allocated to each business segment based on actual services used. Capital is allocated based on the estimated risk within each business segment. The methodology of allocating capital is based on each business segment’s credit, market, and operational risk profile. If applicable, any provision for credit losses is allocated based on various credit factors, including but not limited to, credit risk ratings, credit rating fluctuation, charge-offs and recoveries and loan growth.
	Effective with second quarter 2013 reporting, the methodology for allocating the provision for income taxes to the segments was revised to base the allocation on the Company’s effective tax rate. The allocation was previously based on the statutory tax rate. Prior period segment results have been revised to reflect this change in methodology.
	Exposure to market risk is managed in the Company’s Treasury department. Interest rate risk is mostly removed from the Commercial and Private Banking segment and transferred to the Funding Center through a fund transfer pricing (“FTP”) methodology and allocation model. The FTP model records a cost of funds or credit for funds using a combination of matched maturity funding for fixed term assets and liabilities and a blended rate for the remaining assets and liabilities with varying maturities.
	The Bank’s investment portfolio and unallocated equity are included in the Other segment. Amortization expense associated with customer-relationship intangibles is charged to the affected operating segments.
	Selected financial information for each segment is presented in the following tables. Commercial and Private Banking includes all revenue and costs from products and services utilized by clients of Commercial and Private Banking, including both revenue and costs for Wealth Management products and services. The revenues and costs associated with Wealth Management products and services that are allocated to Commercial and Private Banking for management reporting purposes are eliminated in the Other segment. The current period reflects any changes made in the process or methodology for allocations to the reportable segments. Prior period segment results have been revised to conform to current period presentation.
		For the three months ended September 30, 2014
		Commercial and			Wealth					Consolidated
	(in thousands)	Private Banking			Management		Other			Company
	Earnings Summary:
	Net interest income	$	204,965		$	452	$	10,359		$	215,776
	(Reversal of) provision for credit losses on loans and leases, excluding covered loans	(8,000		)	—		—			(8,000		)
	Provision for losses on covered loans	589			—		—			589
	Noninterest income	53,391			69,974		(15,448		)	107,917
	Depreciation and amortization	2,786			1,797		5,119			9,702
	Noninterest expense	181,632			57,726		(21,858		)	217,500
	Income before income taxes	81,349			10,903		11,650			103,902
	Provision for income taxes	27,158			3,357		3,889			34,404
	Net income	54,191			7,546		7,761			69,498
	Less: Net income attributable to noncontrolling interest	—			847		—			847
	Net income attributable to City National Corporation	$	54,191		$	6,699	$	7,761		$	68,651
	Selected Average Balances:
	Loans and leases, excluding covered loans	$	18,777,758		$	—	$	60,002		$	18,837,760
	Covered loans	580,200			—		—			580,200
	Total assets	19,482,692			738,013		10,689,909			30,910,614
	Deposits	26,481,108			71,595		277,930			26,830,633
	Goodwill	393,176			249,079		—			642,255
	Customer-relationship intangibles, net	2,335			34,689		—			37,024
		For the three months ended September 30, 2013
		Commercial and			Wealth					Consolidated
	(in thousands)	Private Banking			Management		Other			Company
	Earnings Summary:
	Net interest income	$	195,112		$	242	$	18,917		$	214,271
	Provision for losses on covered loans	2,496			—		—			2,496
	Noninterest income	38,602			57,535		(7,254		)	88,883
	Depreciation and amortization	3,263			1,878		4,618			9,759
	Noninterest expense	169,862			48,341		(18,598		)	199,605
	Income before income taxes	58,093			7,558		25,643			91,294
	Provision for income taxes	17,329			2,073		7,650			27,052
	Net income	40,764			5,485		17,993			64,242
	Less: Net income attributable to noncontrolling interest	—			609		—			609
	Net income attributable to City National Corporation	$	40,764		$	4,876	$	17,993		$	63,633
	Selected Average Balances:
	Loans and leases, excluding covered loans	$	15,989,181		$	—	$	50,572		$	16,039,753
	Covered loans	818,928			—		—			818,928
	Total assets	17,011,547			644,677		10,404,910			28,061,134
	Deposits	23,817,083			76,052		408,512			24,301,647
	Goodwill	393,176			249,446		—			642,622
	Customer-relationship intangibles, net	4,445			39,024		—			43,469
		For the nine months ended September 30, 2014
		Commercial and			Wealth					Consolidated
	(in thousands)	Private Banking			Management		Other			Company
	Earnings Summary:
	Net interest income	$	603,170		$	1,253	$	30,253		$	634,676
	(Reversal of) provision for credit losses on loans and leases, excluding covered loans	(9,000		)	—		—			(9,000		)
	Provision for losses on covered loans	3,783			—		—			3,783
	Noninterest income	142,536			203,538		(35,810		)	310,264
	Depreciation and amortization	8,381			5,310		14,665			28,356
	Noninterest expense	533,442			167,858		(61,939		)	639,361
Income before income taxes	209,100			31,623		41,717			282,440
Provision for income taxes	67,507			9,546		13,468			90,521
Net income	141,593			22,077		28,249			191,919
Less: Net income attributable to noncontrolling interest	—			2,056		—			2,056
Net income attributable to City National Corporation	$	141,593		$	20,021	$	28,249		$	189,863
Selected Average Balances:
Loans and leases, excluding covered loans	$	17,993,033		$	—	$	57,583		$	18,050,616
Covered loans	639,592			—		—			639,592
Total assets	18,814,042			696,527		10,600,175			30,110,744
Deposits	25,710,863			77,657		254,929			26,043,449
Goodwill	393,176			249,322		—			642,498
Customer-relationship intangibles, net	2,717			35,788		—			38,505
	For the nine months ended September 30, 2013
	Commercial and			Wealth					Consolidated
(in thousands)	Private Banking			Management		Other			Company
Earnings Summary:
Net interest income	$	564,132		$	803	$	53,328		$	618,263
Provision for losses on covered loans	461			—		—			461
Noninterest income	119,418			171,461		(26,259		)	264,620
Depreciation and amortization	10,505			5,654		13,884			30,043
Noninterest expense	511,703			144,480		(54,093		)	602,090
Income before income taxes	160,881			22,130		67,278			250,289
Provision for income taxes	47,712			6,071		19,952			73,735
Net income	113,169			16,059		47,326			176,554
Less: Net income attributable to noncontrolling interest	—			1,657		—			1,657
Net income attributable to City National Corporation	$	113,169		$	14,402	$	47,326		$	174,897
Selected Average Balances:
Loans and leases, excluding covered loans	$	15,378,936		$	—	$	53,303		$	15,432,239
Covered loans	905,411			—		—			905,411
Total assets	16,502,985			647,273		10,597,656			27,747,914
Deposits	22,696,050			100,922		487,093			23,284,065
Goodwill	393,176			249,446		—			642,622
Customer-relationship intangibles, net	5,174			40,197		—			45,371

Sale_of_Business

Sale of Business	9 Months Ended
	Sep. 30, 2014
Sale of Business	'
Sale of Business	'
	Note 19. Sale of Business
	On September 1, 2014, the Company completed the sale of its retirement services recordkeeping business to OneAmerica Retirement Services, LLC (“OneAmerica”). The $1.4 million gain recognized on the sale was offset by transaction-related expenses. The sale resulted in the transfer of approximately $6.96 billion of assets under administration to OneAmerica.

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2014
Summary of Significant Accounting Policies	'
Organization	'
	Organization
	City National Corporation (the “Corporation”) is the holding company for City National Bank (the “Bank”). The Bank delivers banking, trust and investment services through 77 offices in Southern California, the San Francisco Bay area, Nevada, New York City, Nashville, Tennessee and Atlanta, Georgia. As of September 30, 2014, the Corporation had four consolidated investment advisory affiliates and one unconsolidated subsidiary, Business Bancorp Capital Trust I. Because the Bank comprises substantially all of the business of the Corporation, references to the “Company” mean the Corporation and the Bank together. The Corporation is approved as a financial holding company pursuant to the Gramm-Leach-Bliley Act of 1999.
Consolidation	'
	Consolidation
	The consolidated financial statements of the Company include the accounts of the Corporation, its non-bank subsidiaries, the Bank and the Bank’s wholly owned subsidiaries, after the elimination of all material intercompany transactions. It also includes noncontrolling interest, which is the portion of equity in a subsidiary not attributable to a parent. Redeemable noncontrolling interests are noncontrolling ownership interests that are redeemable at the option of the holder or outside the control of the issuer. The redeemable noncontrolling interests of third parties in the Corporation’s investment advisory affiliates are not considered to be permanent equity and are reflected in the mezzanine section between liabilities and equity in the consolidated balance sheets. Noncontrolling interests’ share of subsidiary earnings is reflected as Net income attributable to noncontrolling interest in the consolidated statements of income.
	The Company’s investment management and wealth advisory affiliates are organized as limited liability companies. The Corporation generally owns a majority position in each affiliate and certain management members of each affiliate own the remaining shares. The Corporation has contractual arrangements with its affiliates whereby a percentage of revenue is allocable to fund affiliate operating expenses (“operating share”) while the remaining portion of revenue (“distributable revenue”) is allocable to the Corporation and the noncontrolling owners. All majority-owned affiliates that meet the prescribed criteria for consolidation are consolidated. The Corporation’s interests in investment management affiliates in which it holds a noncontrolling share are accounted for using the equity method. Additionally, the Company has various interests in variable interest entities (“VIEs”) that are not required to be consolidated. See Note 16 for a more detailed discussion on VIEs.
Use of Estimates	'
	Use of Estimates
	The Company’s accounting and reporting policies conform to generally accepted accounting principles (“GAAP”) and practices in the financial services industry. To prepare the financial statements in conformity with GAAP, management must make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements, and income and expenses during the reporting period. Circumstances and events that differ significantly from those underlying the Company’s estimates and assumptions could cause actual financial results to differ from those estimates. The material estimates included in the financial statements relate to the allowance for loan and lease losses, the reserve for off-balance sheet credit commitments, other real estate owned (“OREO”), valuation of share-based compensation awards, income taxes, goodwill and intangible asset impairment, securities impairment, private equity and alternative investment impairment, valuation of assets and liabilities acquired in business combinations, including contingent consideration liabilities, subsequent valuations of acquired impaired loans, Federal Deposit Insurance Corporation (“FDIC”) indemnification asset, valuation of noncontrolling interest, and the valuation of financial assets and liabilities reported at fair value.
	The Company has applied its critical accounting policies and estimation methods consistently in all periods presented in these financial statements. The Company’s estimates and assumptions are expected to change as changes in market conditions and the Company’s portfolio occur in subsequent periods.
Basis of Presentation	'
	Basis of Presentation
	The Company is on the accrual basis of accounting for income and expenses. The results of operations reflect any adjustments, all of which are of a normal recurring nature, unless otherwise disclosed in this Form 10-Q, and which, in the opinion of management, are necessary for a fair presentation of the results for the periods presented. In accordance with the usual practice of banks, assets and liabilities of individual trust, agency and fiduciary funds have not been included in the financial statements. These unaudited consolidated financial statements should be read in conjunction with the audited consolidated financial statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2013.
	The results for the 2014 interim periods are not necessarily indicative of the results expected for the full year. The Company has not made any significant changes in its critical accounting policies or in its estimates and assumptions from those disclosed in its 2013 Annual Report other than the adoption of new accounting pronouncements and other authoritative guidance that became effective for the Company on or after January 1, 2014. Refer to Accounting Pronouncements for discussion of accounting pronouncements adopted in 2014.
	Certain prior period amounts have been reclassified to conform to the current period presentation.

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2014
Fair Value Measurements	'
Summary of assets and liabilities measured at fair value by level	'
					Fair Value Measurements at Reporting Date Using
	(in thousands)	Balance as of			Quoted Prices in			Significant Other			Significant
		September 30,			Active Markets			Observable			Unobservable
		2014			Level 1			Inputs			Inputs
								Level 2			Level 3
	Measured on a Recurring Basis
	Assets
	Securities available-for-sale:
	U.S. Treasury	$	46,765		$	46,765		$	—		$	—
	Federal agency - Debt	1,326,728			—			1,326,728			—
	Federal agency - MBS	106,976			—			106,976			—
	CMOs - Federal agency	3,559,078			—			3,559,078			—
	CMOs - Non-agency	25,282			—			25,282			—
	State and municipal	381,993			—			378,469			3,524
	Other debt securities	177,042			—			177,042			—
	Equity securities and mutual funds	5,312			5,312			—			—
	Trading securities	125,910			122,145			3,765			—
	Derivative assets (1)	39,580			4,814			34,086			680
	Contingent consideration asset (1)	2,930			—			—			2,930
	Total assets at fair value	$	5,797,596		$	179,036		$	5,611,426		$	7,134
	Liabilities
	Derivative liabilities	$	39,463		$	5,735		$	33,728		$	—
	Contingent consideration liability	34,493			—			—			34,493
	FDIC clawback liability	14,524			—			—			14,524
	Other liabilities	901			—			901			—
	Total liabilities at fair value (2)	$	89,381		$	5,735		$	34,629		$	49,017
	Redeemable noncontrolling interest	$	47,222		$	—		$	—		$	47,222
	Measured on a Nonrecurring Basis
	Assets
	Other real estate owned (3)	$	8,101		$	—		$	—		$	8,101
	Total assets at fair value	$	8,101		$	—		$	—		$	8,101
	(1)     Reported in Other assets in the consolidated balance sheets.
	(2)     Reported in Other liabilities in the consolidated balance sheets.
	(3)     Includes covered OREO.
					Fair Value Measurements at Reporting Date Using
	(in thousands)	Balance as of			Quoted Prices in			Significant Other			Significant
		December 31,			Active Markets			Observable			Unobservable
		2013			Level 1			Inputs			Inputs
								Level 2			Level 3
	Measured on a Recurring Basis
	Assets
	Securities available-for-sale:
	U.S. Treasury	$	35,335		$	35,335		$	—		$	—
	Federal agency - Debt	1,410,536			—			1,410,536			—
	Federal agency - MBS	157,226			—			157,226			—
	CMOs - Federal agency	3,997,298			—			3,997,298			—
	CMOs - Non-agency	37,462			—			37,462			—
	State and municipal	415,995			—			412,362			3,633
	Other debt securities	178,822			—			178,822			—
	Equity securities and mutual funds	8,443			8,443			—			—
	Trading securities	82,357			80,659			1,698			—
	Derivative assets (1)	34,613			3,487			31,126			—
	Total assets at fair value	$	6,358,087		$	127,924		$	6,226,530		$	3,633
	Liabilities
	Derivative liabilities	$	32,970		$	3,333		$	29,637		$	—
	Contingent consideration liability	49,900			—			—			49,900
	FDIC clawback liability	11,967			—			—			11,967
	Other liabilities	1,044			—			1,044			—
	Total liabilities at fair value (2)	$	95,881		$	3,333		$	30,681		$	61,867
	Redeemable noncontrolling interest	$	39,768		$	—		$	—		$	39,768
	Measured on a Nonrecurring Basis
	Assets
	Collateral dependent impaired loans (3):
Commercial real estate mortgages	$	1,220		$	—		$	—		$	1,220
Residential mortgages	1,300			—			—			1,300
Other real estate owned (4)	18,251			—			—			18,251
Private equity and alternative investments	895			—			—			895
Total assets at fair value	$	21,666		$	—		$	—		$	21,666
(1)     Reported in Other assets in the consolidated balance sheets.
(2)     Reported in Other liabilities in the consolidated balance sheets.
(3)     Impaired loans for which fair value was calculated using the collateral valuation method.
(4)     Includes covered OREO.
Schedule of reconciliation of Level 3 assets and liabilities measured on a recurring basis	'
		For the nine months ended
		September 30, 2014
	(in thousands)	Securities			Contingent			Equity			Contingent			FDIC
		Available-for-			Consideration			Warrants			Consideration			Clawback
		Sale			Asset						Liability			Liability
	Balance, beginning of period	$	3,633		$	—		$	—		$	(49,900	)	$	(11,967	)
	Total realized/unrealized gains (losses):
	Included in earnings	—			—			78			—			(2,557		)
	Included in other comprehensive income	(9		)	—			—			—			—
	Additions	—			2,930			631			—			—
	Settlements	(100		)	—			(29		)	17,266			—
	Other (1)	—			—			—			(1,859		)	—
	Balance, end of period	$	3,524		$	2,930		$	680		$	(34,493	)	$	(14,524	)
		For the nine months ended
		September 30, 2013
	(in thousands)	Securities			Contingent			FDIC
		Available-for-			Consideration			Clawback
		Sale			Liability			Liability
	Balance, beginning of period	$	65,187		$	(47,724	)	$	(9,970	)
	Total realized/unrealized gains (losses):
	Included in earnings	—			—			(1,309		)
	Included in other comprehensive income	(35		)	—			—
	Settlements	(3,655		)	—			—
	Other (1)	91			(1,626		)	—
	Balance, end of period	$	61,588		$	(49,350	)	$	(11,279	)
	(1)     Other rollforward activity consists of amortization of premiums and accretion of discounts recognized on the initial purchase of securities available-for-sale and accretion of discount and valuation adjustment related to the contingent consideration liability.
Information About Nonrecurring Level 3 Fair Value Measurements	'
	(in thousands)	Fair Value at			Valuation		Unobservable Inputs
		September 30,			Method
		2014
	Other real estate owned	$	8,101		Third-party appraisal		- Fair values are primarily based on unadjusted appraised values.
Schedule of total gains and losses for assets measured at fair value on a nonrecurring basis	'
		For the three months ended						For the nine months ended
		September 30,						September 30,
	(in thousands)	2014			2013			2014			2013
	Collateral dependent impaired loans:
	Commercial real estate mortgages	$	—		$	(934	)	$	(5	)	$	(641	)
	Residential mortgages	7			(2		)	81			(224		)
	Home equity loans and lines of credit	—			—			—			116
	Installment	—			—			—			(138		)
	Other real estate owned (1)	(283		)	(364		)	784			(5,075		)
	Private equity and alternative investments	—			(109		)	—			(508		)
	Total net gains (losses) recognized	$	(276	)	$	(1,409	)	$	860		$	(6,470	)
	(1)     Net gains and losses on OREO include amounts related to covered OREO, a significant portion of which is payable to or reimbursable by the FDIC.
Schedule of carrying amounts and fair values of financial instruments	'
		September 30, 2014
		Carrying			Total			Fair Value Measurements Using
	(in millions)	Amount			Fair Value			Level 1			Level 2			Level 3
	Financial Assets:
	Cash and due from banks	$	503.6		$	503.6		$	503.6		$	—		$	—
	Due from banks - interest bearing	625.2			625.2			625.2			—			—
	Securities purchased under resale agreements	200			199.3			—			199.3			—
	Securities held-to-maturity	3,450.60			3,462.00			—			3,462.00			—
	Loans and leases, net of allowance	19,035.30			19,612.60			—			—			19,612.60
	Covered loans, net of allowance	543.3			590.3			—			—			590.3
	FDIC indemnification asset	59.9			48.3			—			—			48.3
	Investment in FHLB and FRB stock	58.4			58.4			—			58.4			—
	Financial Liabilities:
	Deposits	$	27,956.00		$	27,957.80		$	—		$	27,361.60		$	596.2
	Short-term borrowings	4.6			4.6			—			—			4.6
	Long-term debt	631.4			697.1			—			605.5			91.6
		December 31, 2013
		Carrying			Total			Fair Value Measurements Using
	(in millions)	Amount			Fair Value			Level 1			Level 2			Level 3
	Financial Assets:
	Cash and due from banks	$	183.2		$	183.2		$	183.2		$	—		$	—
	Due from banks - interest bearing	552.7			552.7			552.7			—			—
	Securities purchased under resale agreements	200			200.5			—			200.5			—
	Securities held-to-maturity	2,957.80			2,883.90			—			2,883.90			—
	Loans and leases, net of allowance	16,867.90			17,362.90			—			—			17,362.90
	Covered loans, net of allowance	701			739.5			—			—			739.5
	FDIC indemnification asset	89.2			74.3			—			—			74.3
	Investment in FHLB and FRB stock	64.4			64.4			—			64.4			—
	Financial Liabilities:
	Deposits	$	25,679.40		$	25,682.20		$	—		$	24,990.80		$	691.4
	Short-term borrowings	3.9			3.9			—			—			3.9
	Long-term debt	736			788.9			—			697.8			91.1

Securities_Tables

Securities (Tables)	9 Months Ended
	Sep. 30, 2014
Securities	'
Summary of amortized cost and estimated fair value for the major categories of securities available-for-sale and held-to-maturity	'
					Gross			Gross
		Amortized			Unrealized			Unrealized
	(in thousands)	Cost			Gains			Losses			Fair Value
	September 30, 2014
	Securities available-for-sale:
	U.S. Treasury	$	46,716		$	49		$	—		$	46,765
	Federal agency - Debt	1,329,891			581			(3,744		)	1,326,728
	Federal agency - MBS	105,992			2,826			(1,842		)	106,976
	CMOs - Federal agency	3,583,667			23,201			(47,790		)	3,559,078
	CMOs - Non-agency	25,521			128			(367		)	25,282
	State and municipal	374,948			7,131			(86		)	381,993
	Other debt securities	174,538			2,504			—			177,042
	Total debt securities	5,641,273			36,420			(53,829		)	5,623,864
	Equity securities and mutual funds	621			4,691			—			5,312
	Total securities available-for-sale	$	5,641,894		$	41,111		$	(53,829	)	$	5,629,176
	Securities held-to-maturity (1):
	Federal agency - Debt	$	296,900		$	4,013		$	(1,154	)	$	299,759
	Federal agency - MBS	582,365			7,137			(5,186		)	584,316
	CMOs - Federal agency	1,847,655			14,816			(23,018		)	1,839,453
	State and municipal	625,860			17,884			(2,925		)	640,819
	Other debt securities	97,771			60			(190		)	97,641
	Total securities held-to-maturity	$	3,450,551		$	43,910		$	(32,473	)	$	3,461,988
	December 31, 2013
	Securities available-for-sale:
	U.S. Treasury	$	35,312		$	23		$	—		$	35,335
	Federal agency - Debt	1,417,509			938			(7,911		)	1,410,536
	Federal agency - MBS	156,399			3,615			(2,788		)	157,226
	CMOs - Federal agency	4,037,348			30,721			(70,771		)	3,997,298
	CMOs - Non-agency	38,383			127			(1,048		)	37,462
	State and municipal	407,312			8,806			(123		)	415,995
	Other debt securities	175,091			3,731			—			178,822
	Total debt securities	6,267,354			47,961			(82,641		)	6,232,674
	Equity securities and mutual funds	337			8,106			—			8,443
	Total securities available-for-sale	$	6,267,691		$	56,067		$	(82,641	)	$	6,241,117
	Securities held-to-maturity (1):
	Federal agency - Debt	$	178,413		$	133		$	(5,122	)	$	173,424
	Federal agency - MBS	445,360			1,005			(11,930		)	434,435
	CMOs - Federal agency	1,781,219			1,839			(40,621		)	1,742,437
	State and municipal	454,155			421			(19,014		)	435,562
	Other debt securities	98,696			—			(619		)	98,077
	Total securities held-to-maturity	$	2,957,843		$	3,398		$	(77,306	)	$	2,883,935
	(1)     Securities held-to-maturity are presented in the consolidated balance sheets at amortized cost.
Schedule of gross realized gains and losses on sales and calls of securities (including trading securities) available-for-sale	'
		For the three months ended						For the nine months ended
		September 30,						September 30,
	(in thousands)	2014			2013			2014			2013
	Gross realized gains	$	19		$	17,533		$	7,989		$	24,369
	Gross realized losses	(5		)	(11,745		)	(486		)	(11,745		)
	Net realized gains	$	14		$	5,788		$	7,503		$	12,624
Schedule of remaining maturities of debt securities included in the securities portfolio	'
	(in thousands)	One year or			Over 1 year			Over 5 years			Over 10			Total
		less			through			through			years
					5 years			10 years
	Securities available-for-sale:
	U.S. Treasury	$	23,134		$	23,631		$	—		$	—		$	46,765
	Federal agency - Debt	188,384			1,099,385			38,959			—			1,326,728
	Federal agency - MBS	—			89,263			17,713			—			106,976
	CMOs - Federal agency	70,795			3,218,376			269,907			—			3,559,078
	CMOs - Non-agency	1,853			23,429			—			—			25,282
	State and municipal	131,825			246,842			—			3,326			381,993
	Other	88,678			88,364			—			—			177,042
	Total debt securities available-for-sale	$	504,669		$	4,789,290		$	326,579		$	3,326		$	5,623,864
	Amortized cost	$	501,637		$	4,801,098		$	335,138		$	3,400		$	5,641,273
	Securities held-to-maturity:
	Federal agency - Debt	$	—		$	—		$	93,517		$	203,383		$	296,900
	Federal agency - MBS	—			84,998			492,868			4,499			582,365
	CMOs - Federal agency	—			720,174			1,127,481			—			1,847,655
	State and municipal	—			103,459			449,877			72,524			625,860
	Other	—			97,771			—			—			97,771
	Total debt securities held-to-maturity at amortized cost	$	—		$	1,006,402		$	2,163,743		$	280,406		$	3,450,551
Schedule of roll forward of credit-related other-than-temporary impairment recognized in earnings for debt securities	'
		For the three months ended						For the nine months ended
		September 30,						September 30,
	(in thousands)	2014			2013			2014			2013
	Balance, beginning of period	$	2,395		$	3,654		$	4,549		$	16,486
	Subsequent credit-related impairment	75			144			323			326
	Reduction for securities sold or redeemed	—			—			(2,402		)	(12,761		)
	Reduction for increase in expected cash flows on securities for which OTTI was previously recognized	—			(421		)	—			(674		)
	Balance, end of period	$	2,470		$	3,377		$	2,470		$	3,377
Summary of the gross unrealized losses and fair value of investment securities that are in an unrealized loss position aggregated by investment category and length of time	'
		Less than 12 months						12 months or greater						Total
	(in thousands)	Fair Value			Estimated			Fair Value			Estimated			Fair Value		Estimated
					Unrealized						Unrealized					Unrealized
					Loss						Loss					Loss
	September 30, 2014
	Securities available-for-sale:
	Federal agency - Debt	$	844,088		$	1,412		$	271,824		$	2,332		$	1,115,912	$	3,744
	Federal agency - MBS	17,748			64			40,660			1,778			58,408		1,842
	CMOs - Federal agency	651,362			3,535			1,270,590			44,255			1,921,952		47,790
	CMOs - Non-agency	1,983			3			12,979			364			14,962		367
	State and municipal	—			—			4,164			86			4,164		86
	Total securities available-for-sale	$	1,515,181		$	5,014		$	1,600,217		$	48,815		$	3,115,398	$	53,829
	Securities held-to-maturity:
	Federal agency - Debt	$	25,034		$	22		$	72,829		$	1,132		$	97,863	$	1,154
	Federal agency - MBS	119,935			726			122,965			4,460			242,900		5,186
	CMOs - Federal agency	743,948			12,015			353,787			11,003			1,097,735		23,018
	State and municipal	22,365			124			119,691			2,801			142,056		2,925
	Other debt securities	79,147			190			—			—			79,147		190
	Total securities held-to-maturity	$	990,429		$	13,077		$	669,272		$	19,396		$	1,659,701	$	32,473
	December 31, 2013
	Securities available-for-sale:
	Federal agency - Debt	$	1,026,142		$	7,911		$	—		$	—		$	1,026,142	$	7,911
	Federal agency - MBS	17,962			85			43,492			2,703			61,454		2,788
	CMOs - Federal agency	1,637,994			35,922			728,101			34,849			2,366,095		70,771
	CMOs - Non-agency	10,056			319			8,483			729			18,539		1,048
	State and municipal	16,521			39			4,266			84			20,787		123
	Total securities available-for-sale	$	2,708,675		$	44,276		$	784,342		$	38,365		$	3,493,017	$	82,641
	Securities held-to-maturity:
	Federal agency - Debt	$	156,290		$	5,122		$	—		$	—		$	156,290	$	5,122
	Federal agency - MBS	321,090			10,513			15,338			1,417			336,428		11,930
	CMOs - Federal agency	1,539,464			36,435			63,276			4,186			1,602,740		40,621
	State and municipal	347,305			14,190			41,102			4,824			388,407		19,014
	Other debt securities	98,077			619			—			—			98,077		619
	Total securities held-to-maturity	$	2,462,226		$	66,879		$	119,716		$	10,427		$	2,581,942	$	77,306

Other_Investments_Tables

Other Investments (Tables)	9 Months Ended
	Sep. 30, 2014
Other Investments	'
Summary of investments by fund type	'
	(in thousands)	September 30,		December 31,
	Fund Type	2014		2013
	Private equity and venture capital	$	18,284	$	20,298
	Real estate	7,114		7,646
	Hedge	1,684		2,733
	Other	1,895		3,275
	Total	$	28,977	$	33,952

Loans_Allowance_for_Loan_and_L1

Loans, Allowance for Loan and Lease Losses, and Reserve for Off-Balance Sheet Credit Commitments (Tables)	9 Months Ended
	Sep. 30, 2014
Loans, Allowance for Loan and Lease Losses, and Reserve for Off-Balance Sheet Credit Commitments	'
Summary of loans	'
	Loans and Leases
		September 30,			December 31,
	(in thousands) (1)	2014			2013
	Commercial	$	8,612,691		$	7,562,300
	Commercial real estate mortgages	3,565,188			3,223,001
	Residential mortgages	5,023,213			4,554,311
	Real estate construction	585,232			367,004
	Home equity loans and lines of credit	759,258			709,344
	Installment	178,803			151,955
	Lease financing	623,603			602,523
	Loans and leases, excluding covered loans	19,347,988			17,170,438
	Less: Allowance for loan and lease losses	(312,703		)	(302,584		)
	Loans and leases, excluding covered loans, net	19,035,285			16,867,854
	Covered loans	552,715			716,911
	Less: Allowance for loan losses	(9,368		)	(15,922		)
	Covered loans, net	543,347			700,989
	Total loans and leases	$	19,900,703		$	17,887,349
	Total loans and leases, net	$	19,578,632		$	17,568,843
	(1)     Commercial loans as of December 31, 2013 have been corrected to include $158.2 million of loans that were previously reported as lease financing.
Summary of major categories of covered loans	'
		September 30,			December 31,
	(in thousands)	2014			2013
	Commercial	$	2,273		$	10,009
	Commercial real estate mortgages	522,883			666,628
	Residential mortgages	5,203			4,976
	Real estate construction	19,016			31,184
	Home equity loans and lines of credit	3,089			3,695
	Installment	251			419
	Covered loans	552,715			716,911
	Less: Allowance for loan losses	(9,368		)	(15,922		)
	Covered loans, net	$	543,347		$	700,989
Schedule of information on covered loans and loss-sharing terms by acquired entity	'
	(in thousands)	Imperial			1st Pacific			Sun West			Nevada			Total
		Capital			Bank			Bank			Commerce
		Bank									Bank
	Covered loans as of:
	September 30, 2014	$	492,445		$	24,748		$	13,025		$	22,497		$	552,715
	December 31, 2013	630,754			40,110			18,761			27,286			716,911
	As of September 30, 2014:
	FDIC indemnification asset	$	51,074		$	2,431		$	3,105		$	3,307		$	59,917
	FDIC clawback liability	—			12,240			2,131			153			14,524
	Expiration date of FDIC loss sharing:
	Commercial (1)	12/31/16			6/30/15			6/30/15			6/30/16
	Residential	12/31/19			5/31/20			5/31/20			4/30/21
	Termination date of FDIC loss-sharing agreements:
	Commercial (1)	12/19/17			5/8/18			5/29/18			6/30/19
	Residential	12/31/19			5/31/20			5/31/20			4/30/21
	(1)     The Company is subject to sharing 80 percent of its recoveries with the FDIC up to the last day of the quarter in which the termination dates of the commercial loss-sharing agreements occur.
Summary of accretable yield for acquired impaired loans	'
		For the nine months ended
		September 30,
	(in thousands)	2014			2013
	Balance, beginning of period	$	219,018		$	295,813
	Accretion	(36,067		)	(49,395		)
	Reclassifications from nonaccretable difference	25,636			26,990
	Disposals and other	(28,628		)	(40,959		)
	Balance, end of period	$	179,959		$	232,449
Summary of allowance for loan and lease losses on non-covered loans	'
	(in thousands)	Commercial			Commercial			Residential			Real Estate			Home Equity			Installment			Qualitative			Total
		-1			Real Estate			Mortgages			Construction			Loans and Lines
					Mortgages									of Credit
	Three months ended September 30, 2014
	Allowance for loan and lease losses:
	Beginning balance	$	126,279		$	50,651		$	10,296		$	7,191		$	6,575		$	2,284		$	108,000		$	311,276
	Charge-offs	(3,773		)	—			—			—			—			(76		)	—			(3,849		)
	Recoveries	6,202			225			33			7,729			52			158			—			14,399
	Net recoveries	2,429			225			33			7,729			52			82			—			10,550
	(Reversal of) provision for credit losses	(5,762		)	113			1,138			(6,175		)	401			18			2,267			(8,000		)
	Transfers to reserve for off-balance sheet credit commitments	—			—			—			—			—			—			(1,123		)	(1,123		)
	Ending balance	$	122,946		$	50,989		$	11,467		$	8,745		$	7,028		$	2,384		$	109,144		$	312,703
	Nine months ended September 30, 2014
	Allowance for loan and lease losses:
	Beginning balance	$	117,103		$	50,678		$	11,540		$	6,351		$	6,677		$	1,842		$	108,393		$	302,584
	Charge-offs	(18,594		)	(5		)	(482		)	—			(165		)	(264		)	—			(19,510		)
	Recoveries	15,437			352			258			12,804			254			1,490			—			30,595
	Net (charge-offs) recoveries	(3,157		)	347			(224		)	12,804			89			1,226			—			11,085
	(Reversal of) provision for credit losses	(353		)	(36		)	151			(10,410		)	262			(684		)	2,070			(9,000		)
	Transfers from (to) reserve for off-balance sheet credit commitments	9,353			—			—			—			—			—			(1,319		)	8,034
	Ending balance	$	122,946		$	50,989		$	11,467		$	8,745		$	7,028		$	2,384		$	109,144		$	312,703
	Ending balance of allowance:
	Individually evaluated for impairment	$	1,304		$	291		$	—		$	—		$	—		$	—		$	—		$	1,595
	Collectively evaluated for impairment	121,642			50,698			11,467			8,745			7,028			2,384			109,144			311,108
	Loans and leases, excluding covered loans
	Ending balance of loans and leases:
	Loans and leases, excluding covered loans	$	9,236,294		$	3,565,188		$	5,023,213		$	585,232		$	759,258		$	178,803		$	—		$	19,347,988
	Individually evaluated for impairment	16,316			25,551			7,785			6,610			2,313			—			—			58,575
	Collectively evaluated for impairment	9,219,978			3,539,637			5,015,428			578,622			756,945			178,803			—			19,289,413
	(1)       Includes lease financing loans.
	(in thousands)	Commercial			Commercial			Residential			Real Estate			Home Equity			Installment			Qualitative			Total
		-1			Real Estate			Mortgages			Construction			Loans and Lines
					Mortgages									of Credit
	Three months ended September 30, 2013
	Allowance for loan and lease losses:
	Beginning balance	$	116,619		$	53,339		$	8,004		$	8,335		$	5,400		$	1,355		$	96,862		$	289,914
	Charge-offs	(488		)	(1,270		)	—			—			(225		)	(18		)	—			(2,001		)
	Recoveries	4,863			686			40			2,945			31			218			—			8,783
	Net recoveries (charge-offs)	4,375			(584		)	40			2,945			(194		)	200			—			6,782
	(Reversal of) provision for credit losses	(14,173		)	(2,829		)	5,070			(1,589		)	3,092			317			10,112			—
	Transfers to reserve for off-balance sheet credit commitments	—			—			—			—			—			—			(749		)	(749		)
	Ending balance	$	106,821		$	49,926		$	13,114		$	9,691		$	8,298		$	1,872		$	106,225		$	295,947
	Nine months ended September 30, 2013
	Allowance for loan and lease losses:
	Beginning balance	$	104,731		$	48,901		$	10,558		$	11,784		$	7,283		$	1,858		$	92,773		$	277,888
	Charge-offs	(4,719		)	(1,315		)	(106		)	(100		)	(500		)	(370		)	—			(7,110		)
	Recoveries	14,122			1,768			115			8,393			569			1,238			—			26,205
	Net recoveries	9,403			453			9			8,293			69			868			—			19,095
	(Reversal of) provision for credit losses	(7,313		)	572			2,547			(10,386		)	946			(854		)	14,488			—
	Transfers to reserve for off-balance sheet credit commitments	—			—			—			—			—			—			(1,036		)	(1,036		)
	Ending balance	$	106,821		$	49,926		$	13,114		$	9,691		$	8,298		$	1,872		$	106,225		$	295,947
	Ending balance of allowance:
	Individually evaluated for impairment	$	344		$	602		$	232		$	—		$	—		$	—		$	—		$	1,178
	Collectively evaluated for impairment	106,477			49,324			12,882			9,691			8,298			1,872			106,225			294,769
	Loans and leases, excluding covered loans
	Ending balance of loans and leases:
	Loans and leases, excluding covered loans	$	7,856,244		$	3,077,183		$	4,418,231		$	380,489		$	681,879		$	152,107		$	—		$	16,566,133
	Individually evaluated for impairment	32,727			38,546			6,767			30,190			2,350			—			—			110,580
	Collectively evaluated for impairment	7,823,517			3,038,637			4,411,464			350,299			679,529			152,107			—			16,455,553
	(1)         Includes lease financing loans.
Summary of activity in the reserve for off-balance sheet credit commitments	'
		For the three months ended						For the nine months ended
		September 30,						September 30,
	(in thousands)	2014			2013			2014			2013
	Balance, beginning of period	$	24,787		$	25,124		$	33,944		$	24,837
	Transfers from (to) allowance for loan and lease losses	1,123			749			(8,034		)	1,036
	Balance, end of period	$	25,910		$	25,873		$	25,910		$	25,873
Schedule of impaired loans, excluding covered loans	'
					Unpaid						For the three months ended						For the nine months ended
											September 30, 2014						September 30, 2014
	(in thousands)	Recorded			Contractual			Related			Average			Interest			Average			Interest
		Investment			Principal			Allowance			Recorded			Income			Recorded			Income
					Balance						Investment			Recognized			Investment			Recognized
	September 30, 2014
	With no related allowance recorded:
	Commercial	$	6,653		$	6,684		$	—		$	6,817		$	38		$	10,653		$	205
	Commercial real estate mortgages	20,347			22,698			—			24,290			219			29,478			903
	Residential mortgages:
	Fixed	2,015			2,254			—			3,406			10			3,459			30
	Variable	5,770			5,885			—			3,784			40			3,997			68
	Total residential mortgages	7,785			8,139			—			7,190			50			7,456			98
	Real estate construction:
	Construction	—			—			—			—			—			2,742			76
	Land	6,610			8,758			—			9,728			35			11,593			104
	Total real estate construction	6,610			8,758			—			9,728			35			14,335			180
	Home equity loans and lines of credit	2,313			3,375			—			2,874			—			2,881			—
	Installment:
	Consumer	—			—			—			—			1			4			1
	Total installment	—			—			—			—			1			4			1
	Total with no related allowance	$	43,708		$	49,654		$	—		$	50,899		$	343		$	64,807		$	1,387
	With an allowance recorded:
	Commercial	$	9,663		$	12,134		$	1,304		$	15,957		$	—		$	15,869		$	—
	Commercial real estate mortgages	5,204			5,557			291			5,214			73			5,293			191
	Residential mortgages:
	Variable	—			—			—			2,000			—			1,419			11
	Total residential mortgages	—			—			—			2,000			—			1,419			11
	Installment:
	Consumer	—			—			—			25			—			12			1
	Total installment	—			—			—			25			—			12			1
	Total with an allowance	$	14,867		$	17,691		$	1,595		$	23,196		$	73		$	22,593		$	203
	Total impaired loans by type:
	Commercial	$	16,316		$	18,818		$	1,304		$	22,774		$	38		$	26,522		$	205
	Commercial real estate mortgages	25,551			28,255			291			29,504			292			34,771			1,094
	Residential mortgages	7,785			8,139			—			9,190			50			8,875			109
	Real estate construction	6,610			8,758			—			9,728			35			14,335			180
	Home equity loans and lines of credit	2,313			3,375			—			2,874			—			2,881			—
	Installment	—			—			—			25			1			16			2
	Total impaired loans	$	58,575		$	67,345		$	1,595		$	74,095		$	416		$	87,400		$	1,590
	(in thousands)	Recorded			Unpaid			Related
		Investment			Contractual			Allowance
					Principal
					Balance
	Year ended December 31, 2013
	With no related allowance recorded:
	Commercial	$	17,721		$	18,041		$	—
	Commercial real estate mortgages	32,770			37,555			—
	Residential mortgages:
	Fixed	2,135			2,295			—
	Variable	5,402			5,783			—
	Total residential mortgages	7,537			8,078			—
	Real estate construction:
	Construction	5,485			6,766			—
	Land	13,612			26,928			—
	Total real estate construction	19,097			33,694			—
	Home equity loans and lines of credit	2,329			3,375			—
	Installment:
	Consumer	16			24			—
	Total installment	16			24			—
	Total with no related allowance	$	79,470		$	100,767		$	—
	With an allowance recorded:
	Commercial	$	14,136		$	18,156		$	1,961
Commercial real estate mortgages	5,384			5,764			586
Residential mortgages:
Variable	1,674			1,687			478
Total residential mortgages	1,674			1,687			478
Total with an allowance	$	21,194		$	25,607		$	3,025
Total impaired loans by type:
Commercial	$	31,857		$	36,197		$	1,961
Commercial real estate mortgages	38,154			43,319			586
Residential mortgages	9,211			9,765			478
Real estate construction	19,097			33,694			—
Home equity loans and lines of credit	2,329			3,375			—
Installment	16			24			—
Total impaired loans	$	100,664		$	126,374		$	3,025
				Unpaid						For the three months ended						For the nine months ended
										September 30, 2013						September 30, 2013
(in thousands)	Recorded			Contractual			Related			Average			Interest			Average			Interest
	Investment			Principal			Allowance			Recorded			Income			Recorded			Income
				Balance						Investment			Recognized			Investment			Recognized
September 30, 2013
With no related allowance recorded:
Commercial	$	25,233		$	25,488		$	—		$	26,255		$	593		$	22,584		$	1,440
Commercial real estate mortgages	33,133			37,754			—			29,977			440			33,060			1,102
Residential mortgages:
Fixed	2,031			2,155			—			2,019			33			2,860			75
Variable	3,062			3,418			—			3,670			47			4,062			116
Total residential mortgages	5,093			5,573			—			5,689			80			6,922			191
Real estate construction:
Construction	16,259			21,064			—			16,262			233			17,904			791
Land	13,931			27,092			—			14,056			224			16,506			511
Total real estate construction	30,190			48,156			—			30,318			457			34,410			1,302
Home equity loans and lines of credit	2,350			3,375			—			2,803			47			2,827			81
Installment:
Consumer	—			—			—			—			—			112			—
Total installment	—			—			—			—			—			112			—
Total with no related allowance	$	95,999		$	120,346		$	—		$	95,042		$	1,617		$	99,915		$	4,116
With an allowance recorded:
Commercial	$	7,494		$	9,168		$	344		$	7,567		$	156		$	7,556		$	513
Commercial real estate mortgages	5,413			5,810			602			10,262			45			11,018			361
Residential mortgages:
Fixed	—			—			—			—			—			116			—
Variable	1,674			1,688			232			1,684			14			842			55
Total residential mortgages	1,674			1,688			232			1,684			14			958			55
Real estate construction:
Land	—			—			—			—			—			3,213			213
Total real estate construction	—			—			—			—			—			3,213			213
Home equity loans and lines of credit	—			—			—			—			—			225			—
Total with an allowance	$	14,581		$	16,666		$	1,178		$	19,513		$	215		$	22,970		$	1,142
Total impaired loans by type:
Commercial	$	32,727		$	34,656		$	344		$	33,822		$	749		$	30,140		$	1,953
Commercial real estate mortgages	38,546			43,564			602			40,239			485			44,078			1,463
Residential mortgages	6,767			7,261			232			7,373			94			7,880			246
Real estate construction	30,190			48,156			—			30,318			457			37,623			1,515
Home equity loans and lines of credit	2,350			3,375			—			2,803			47			3,052			81
Installment	—			—			—			—			—			112			—
Total impaired loans	$	110,580		$	137,012		$	1,178		$	114,555		$	1,832		$	122,885		$	5,258
Schedule of troubled debt restructured loans	'
	The following table provides a summary of loans modified in a troubled debt restructuring during the three months ended September 30, 2013:
	(in thousands)	Number of		Pre-Modification			Period-End			Financial
		Contracts		Outstanding			Outstanding			Effects (1)
				Principal			Principal
	Three months ended September 30, 2013
	Commercial	2		$	7,575		$	7,486		$	344
	Total troubled debt restructured loans	2		$	7,575		$	7,486		$	344
	(1)     Financial effects are comprised of charge-offs and specific reserves recognized on TDR loans at modification date.
	The following table provides a summary of loans modified in a troubled debt restructuring during the nine months ended September 30, 2014 and 2013:
	(in thousands)	Number of		Pre-Modification			Period-End			Financial
		Contracts		Outstanding			Outstanding			Effects (1)
				Principal			Principal
	Nine months ended September 30, 2014
	Commercial	2		$	4,098		$	3,799		$	—
	Residential mortgages:
	Variable	2		4,676			4,647			5
	Installment:
	Consumer	1		50			—			50
	Total troubled debt restructured loans	5		$	8,824		$	8,446		$	55
	Nine months ended September 30, 2013
	Commercial	12		$	16,258		$	13,624		$	344
	Commercial real estate mortgages	1		547			533			—
	Home equity loans and lines of credit	1		345			—			—
	Total troubled debt restructured loans	14		$	17,150		$	14,157		$	344
	(1)     Financial effects are comprised of charge-offs and specific reserves recognized on TDR loans at modification date.
Schedule of troubled debt restructured loans that have subsequently defaulted	'
		For nine months ended September 30, 2013
	(in thousands)	Number of		Period-End			Period-End
		Contracts		Outstanding			Specific
				Principal			Reserve
	Commercial	4		$	896		$	—
	Real estate construction:
	Land	1		7,244			—
	Home equity loans and lines of credit	1		139			—
	Total loans that subsequently defaulted	6		$	8,279		$	—
Summary of past due loans, excluding covered loans, based upon the length of time the loans have been past due	'
	(in thousands)	30-59 Days			60-89 Days			Greater			Nonaccrual			Total Past			Current			Total Loans and
		Past Due			Past Due			Than 90						Due and						Leases
								Days and						Nonaccrual
								Accruing						Loans
	September 30, 2014
	Commercial	$	4,017		$	2,971		$	—		$	14,578		$	21,566		$	8,591,125		$	8,612,691
	Commercial real estate mortgages	265			501			—			3,691			4,457			3,560,731			3,565,188
	Residential mortgages:
	Fixed	—			3,625			6,145			3,911			13,681			1,410,232			1,423,913
	Variable	—			5,259			—			2,257			7,516			3,591,784			3,599,300
	Total residential mortgages	—			8,884			6,145			6,168			21,197			5,002,016			5,023,213
	Real estate construction:
	Construction	—			—			—			—			—			565,507			565,507
	Land	—			—			—			6,598			6,598			13,127			19,725
	Total real estate construction	—			—			—			6,598			6,598			578,634			585,232
	Home equity loans and lines of credit	100			1,972			387			4,776			7,235			752,023			759,258
	Installment:
	Commercial	—			—			—			—			—			303			303
	Consumer	280			85			292			42			699			177,801			178,500
	Total installment	280			85			292			42			699			178,104			178,803
	Lease financing	63			18			—			66			147			623,456			623,603
	Total	$	4,725		$	14,431		$	6,824		$	35,919		$	61,899		$	19,286,089		$	19,347,988
	(in thousands) (1)	30-59 Days			60-89 Days			Greater			Nonaccrual			Total Past			Current			Total Loans and
		Past Due			Past Due			Than 90						Due and						Leases
								Days and						Nonaccrual
								Accruing						Loans
	December 31, 2013
	Commercial	$	6,582		$	362		$	—		$	14,248		$	21,192		$	7,541,108		$	7,562,300
	Commercial real estate mortgages	1,197			1,633			—			18,449			21,279			3,201,722			3,223,001
	Residential mortgages:
	Fixed	—			—			379			3,789			4,168			1,436,283			1,440,451
	Variable	—			—			—			7,872			7,872			3,105,988			3,113,860
	Total residential mortgages	—			—			379			11,661			12,040			4,542,271			4,554,311
	Real estate construction:
	Construction	—			—			—			5,467			5,467			332,131			337,598
	Land	—			797			—			13,600			14,397			15,009			29,406
	Total real estate construction	—			797			—			19,067			19,864			347,140			367,004
	Home equity loans and lines of credit	—			—			74			5,144			5,218			704,126			709,344
	Installment:
	Commercial	1			—			—			—			1			361			362
	Consumer	10			7			—			32			49			151,544			151,593
	Total installment	11			7			—			32			50			151,905			151,955
	Lease financing	401			126			—			50			577			601,946			602,523
	Total	$	8,191		$	2,925		$	453		$	68,651		$	80,220		$	17,090,218		$	17,170,438
	(1)     Commercial loans as of December 31, 2013 have been corrected to include $158.2 million of loans that were previously reported as lease financing.
Summary of the loan and lease portfolio, excluding covered loans, by loan type and credit quality classification	'
		September 30, 2014									December 31, 2013
	(in thousands) (1)	Nonclassified			Classified			Total			Nonclassified			Classified			Total
	Commercial	$	8,533,130		$	79,561		$	8,612,691		$	7,416,487		$	145,813		$	7,562,300
	Commercial real estate mortgages	3,524,848			40,340			3,565,188			3,139,707			83,294			3,223,001
	Residential mortgages:
	Fixed	1,396,708			27,205			1,423,913			1,425,087			15,364			1,440,451
	Variable	3,567,505			31,795			3,599,300			3,087,636			26,224			3,113,860
	Total residential mortgages	4,964,213			59,000			5,023,213			4,512,723			41,588			4,554,311
	Real estate construction:
	Construction	565,507			—			565,507			332,131			5,467			337,598
	Land	13,127			6,598			19,725			15,522			13,884			29,406
	Total real estate construction	578,634			6,598			585,232			347,653			19,351			367,004
	Home equity loans and lines of credit	728,078			31,180			759,258			687,732			21,612			709,344
	Installment:
	Commercial	303			—			303			362			—			362
	Consumer	177,407			1,093			178,500			151,468			125			151,593
	Total installment	177,710			1,093			178,803			151,830			125			151,955
	Lease financing	619,664			3,939			623,603			598,821			3,702			602,523
	Total	$	19,126,277		$	221,711		$	19,347,988		$	16,854,953		$	315,485		$	17,170,438
	(1)     Commercial loans as of December 31, 2013 have been corrected to include $158.2 million of loans that were previously reported as lease financing.
Summary of the allowance for loan losses on covered loans	'
		For the three months ended						For the nine months ended
		September 30,						September 30,
	(in thousands)	2014			2013			2014			2013
	Balance, beginning of period	$	9,103		$	24,414		$	15,922		$	44,781
	Provision for losses	589			2,496			3,783			461
	Reduction in allowance due to loan removals	(324		)	(1,028		)	(10,337		)	(19,360		)
	Balance, end of period	$	9,368		$	25,882		$	9,368		$	25,882

Other_Real_Estate_Owned_Tables

Other Real Estate Owned (Tables)	9 Months Ended
	Sep. 30, 2014
Other Real Estate Owned	'
Summary of OREO activity	'
	The following table provides a summary of OREO activity for the three months ended September 30, 2014 and 2013:
		For the three months ended									For the three months ended
		September 30, 2014									September 30, 2013
	(in thousands)	Non-Covered			Covered			Total			Non-Covered			Covered			Total
		OREO			OREO						OREO			OREO
	Balance, beginning of period	$	4,269		$	17,944		$	22,213		$	19,676		$	41,801		$	61,477
	Additions	5,957			1,276			7,233			—			4,008			4,008
	Sales	(83		)	(4,366		)	(4,449		)	(771		)	(14,435		)	(15,206		)
	Valuation adjustments	(28		)	(367		)	(395		)	—			(1,556		)	(1,556		)
	Balance, end of period	$	10,115		$	14,487		$	24,602		$	18,905		$	29,818		$	48,723
	The following table provides a summary of OREO activity for the nine months ended September 30, 2014 and 2013:
		For the nine months ended									For the nine months ended
		September 30, 2014									September 30, 2013
	(in thousands)	Non-Covered			Covered			Total			Non-Covered			Covered			Total
		OREO			OREO						OREO			OREO
	Balance, beginning of period	$	12,611		$	25,481		$	38,092		$	21,027		$	58,276		$	79,303
	Additions	6,068			5,296			11,364			723			17,914			18,637
	Sales	(8,523		)	(14,834		)	(23,357		)	(2,552		)	(39,597		)	(42,149		)
	Valuation adjustments	(41		)	(1,456		)	(1,497		)	(293		)	(6,775		)	(7,068		)
	Balance, end of period	$	10,115		$	14,487		$	24,602		$	18,905		$	29,818		$	48,723

Borrowed_Funds_Tables

Borrowed Funds (Tables)	9 Months Ended
	Sep. 30, 2014
Borrowed Funds	'
Schedule of short-term borrowings and long-term debt	'
		September 30,		December 31,
	(in thousands) (1)	2014		2013
	Short-term borrowings
	Current portion of nonrecourse debt (5)	$	4,635	$	3,889
	Total short-term borrowings	$	4,635	$	3,889
	Long-term debt
	Senior notes:
	City National Corporation - 5.25% Senior Notes Due September 2020	$	299,521	$	299,463
	Subordinated debt:
	City National Bank - 9.00% Subordinated Notes Due July 2019 (2)	—		50,000
	City National Bank - 9.00% Subordinated Notes Due August 2019	75,000		75,000
	City National Bank - Fixed and Floating Subordinated Notes due August 2019 (3)	—		55,000
	City National Bank - 5.375% Subordinated Notes Due July 2022	149,994		149,994
	Junior subordinated debt:
	Floating Rate Business Bancorp Capital Trust I Securities due November 2034 (4)	5,155		5,155
	Nonrecourse debt (5)	91,941		91,388
	Other long-term debt (6)	9,823		9,968
	Total long-term debt	$	631,434	$	735,968
	(1)The carrying value of certain borrowed funds is net of discount which is being amortized into interest expense.
	(2)These notes bore a fixed interest rate of 9 percent for the initial five years from the date of issuance (July 15, 2009). The Bank redeemed the notes in accordance with their terms and procedures on July 15, 2014.
	(3)These notes bore a fixed interest rate of 9 percent for the initial five years from the date of issuance (August 12, 2009). The Bank redeemed the notes in accordance with their terms and procedures on August 12, 2014.
	(4)These floating rate securities pay interest of three-month LIBOR plus 1.965 percent which is reset quarterly.  As of September 30, 2014, the interest rate was approximately 2.20 percent.
	(5)Nonrecourse debt bears interest at an average rate of 3.85 percent as of September 30, 2014 and has maturity dates ranging from November 2014 to February 2023.
	(6)Other long-term debt includes a note payable that bears a fixed interest rate of 5.64 percent and is scheduled to mature on June 2017.

Shareholders_Equity_Tables

Shareholders' Equity (Tables)	9 Months Ended
	Sep. 30, 2014
Shareholders' Equity	'
Schedule of components of total comprehensive income (loss)	'
		For the three months ended									For the three months ended
		September 30, 2014									September 30, 2013
	(in thousands)	Pre-tax			Tax expense			Net-of-tax			Pre-tax			Tax expense			Net-of-tax
					(benefit)									(benefit)
	Securities available-for-sale:
	Net unrealized losses arising during the period	$	(16,386	)	$	(6,839	)	$	(9,547	)	$	(23,334	)	$	(9,761	)	$	(13,573	)
	Reclassification adjustment for net gains included in net income (1)	(7		)	(3		)	(4		)	(5,788		)	(2,421		)	(3,367		)
	Non-credit related impairment loss	(243		)	(102		)	(141		)	—			—			—
	Total securities available-for-sale	(16,636		)	(6,944		)	(9,692		)	(29,122		)	(12,182		)	(16,940		)
	Total other comprehensive loss	$	(16,636	)	$	(6,944	)	$	(9,692	)	$	(29,122	)	$	(12,182	)	$	(16,940	)
		For the nine months ended									For the nine months ended
		September 30, 2014									September 30, 2013
	(in thousands)	Pre-tax			Tax expense			Net-of-tax			Pre-tax			Tax expense			Net-of-tax
					(benefit)									(benefit)
	Securities available-for-sale:
	Net unrealized gains (losses) arising during the period	$	21,646		$	9,060		$	12,586		$	(155,089	)	$	(64,874	)	$	(90,215	)
	Reclassification adjustment for net gains included in net income (1)	(7,558		)	(3,162		)	(4,396		)	(11,460		)	(4,794		)	(6,666		)
	Non-credit related impairment loss	(243		)	(102		)	(141		)	—			—			—
	Total securities available-for-sale	13,845			5,796			8,049			(166,549		)	(69,668		)	(96,881		)
	Net change on cash flow hedges	—			—			—			(56		)	—			(56		)
	Total other comprehensive income (loss)	$	13,845		$	5,796		$	8,049		$	(166,605	)	$	(69,668	)	$	(96,937	)
	(1)     Recognized in Gain on sale of securities in the consolidated statements of income.
Summary of entity's share repurchases activity	'
	Period	Total Number		Average
		of Shares		Price Paid
		(or Units)		per Share
		Purchased		(or Unit)
	July 1, 2014 to July 31, 2014	2,085		$	74.64
	August 1, 2014 to August 31, 2014	12		75.88
	September 1, 2014 to September 30, 2014	3,003		77.46
	Total share repurchases	5,100		76.3

Earnings_per_Common_Share_Tabl

Earnings per Common Share (Tables)	9 Months Ended
	Sep. 30, 2014
Earnings per Common Share	'
Schedule of basic and diluted EPS	'
		For the three months ended				For the nine months ended
		September 30,				September 30,
	(in thousands, except per share amounts)	2014		2013		2014		2013
	Basic EPS:
	Net income attributable to City National Corporation	$	68,651	$	63,633	$	189,863	$	174,897
	Less: Dividends on preferred stock	4,093		2,407		12,281		7,219
	Net income available to common shareholders	$	64,558	$	61,226	$	177,582	$	167,678
	Less: Earnings allocated to participating securities	632		688		1,808		1,975
	Earnings allocated to common shareholders	$	63,926	$	60,538	$	175,774	$	165,703
	Weighted average common shares outstanding	55,031		54,274		54,893		54,039
	Basic earnings per common share	$	1.16	$	1.12	$	3.20	$	3.07
	Diluted EPS:
	Earnings allocated to common shareholders (1)	$	63,932	$	60,543	$	175,790	$	165,716
	Weighted average common shares outstanding	55,031		54,274		54,893		54,039
	Dilutive effect of equity awards	734		546		723		425
	Weighted average diluted common shares outstanding	55,765		54,820		55,616		54,464
	Diluted earnings per common share	$	1.15	$	1.1	$	3.16	$	3.04
	(1)     Earnings allocated to common shareholders for basic and diluted EPS may differ under the two-class method as a result of adding common stock equivalents for options to dilutive shares outstanding, which alters the ratio used to allocate earnings to common shareholders and participating securities for the purposes of calculating diluted EPS.

ShareBased_Compensation_Tables

Share-Based Compensation (Tables)	9 Months Ended
	Sep. 30, 2014
Share-Based Compensation	'
Summary of assumptions to estimate the fair value of stock option awards	'
		For the three months ended				For the nine months ended
		September 30,				September 30,
		2014		2013		2014		2013
	Weighted-average volatility	27.08	%	—		27.35	%	28.12	%
	Dividend yield	1.72	%	—		1.79	%	2.15	%
	Expected term (in years)	5.46		—		6.06		6.15
	Risk-free interest rate	1.97	%	—		1.99	%	1.24	%
Summary of options activity and related information under the Plan	'
				Weighted						Weighted
				Average			Aggregate			Average
		Number of		Exercise			Intrinsic			Remaining
		Shares		Price			Value			Contractual
	Options	(in thousands)		(per share)			(in thousands) (1)			Term
	Outstanding at January 1, 2014	4,075		$	55.5
	Granted	455		73.65
	Exercised	(390	)	55.71
	Forfeited or expired	(51	)	58.52
	Outstanding at September 30, 2014	4,089		$	57.46		$	74,730		5.53
	Exercisable at September 30, 2014	2,801		$	56.11		$	55,037		4.23
	(1)     Includes in-the-money options only.
Summary of changes in unvested options and related information under the Plan	'
				Weighted Average
		Number of		Grant Date
		Shares		Fair Value
	Unvested Options	(in thousands)		(per share)
	Unvested at January 1, 2014	1,425		$	13.64
	Granted	455		17.93
	Vested	(552	)	14.58
	Forfeited	(40	)	13.13
	Unvested at September 30, 2014	1,288		$	14.77
Share-based compensation	'
Summary of changes in restricted stock and related information under the Plan	'
				Weighted Average
		Number of		Grant Date
		Shares		Fair Value
	Restricted Stock (1)	(in thousands)		(per share)
	Unvested at January 1, 2014	608		$	53.03
	Granted	119		73.64
	Vested	(181	)	44.43
	Forfeited	(11	)	55.88
	Unvested at September 30, 2014	535		$	60.47
	(1)     Includes restricted stock units.
Cash-settled restricted stock units	'
Share-based compensation	'
Summary of changes in restricted stock and related information under the Plan	'
		Number of
		Shares
	Cash-Settled Restricted Stock Units	(in thousands)
	Unvested at January 1, 2014	190
	Granted	15
	Vested	(24	)
	Forfeited	(4	)
	Unvested at September 30, 2014	177

Derivative_Instruments_Tables

Derivative Instruments (Tables)	9 Months Ended
	Sep. 30, 2014
Derivative Instruments	'
Summary of notional amount and fair values of derivative instruments	'
		September 30, 2014									December 31, 2013
	(in millions) (1)	Notional			Derivative			Derivative			Notional			Derivative		Derivative
		Amount			Assets			Liabilities			Amount			Assets		Liabilities
	Derivatives not designated as hedging instruments
	Interest rate contracts:
	Swaps	$	2,975.30		$	37.9		$	37.8		$	2,769.40		$	42.7	$	41.7
	Interest-rate caps, floors and collars	310.2			0.9			0.9			251.6			0.5		0.5
	Options purchased	0.2			0.1			0.2			1.5			0.6		0.6
	Options written	0.2			—			—			1.5			—		—
	Total interest-rate contracts	$	3,285.90		$	38.9		$	38.9		$	3,024.00		$	43.8	$	42.8
	Option contracts	$	2.1		$	0.3		$	—		$	1.9		$	0.4	$	—
	Foreign exchange contracts:
	Spot and forward contracts	$	651.6		$	4.8		$	5.7		$	461.4		$	3.5	$	3.3
	Options purchased	3			—			—			6.3			—		—
	Options written	3			0.2			0.2			6.3			0.2		0.2
	Total foreign exchange contracts	$	657.6		$	5		$	5.9		$	474		$	3.7	$	3.5
	Equity warrants	$	1.8		$	0.7		$	—		$	—		$	—	$	—
	Total derivatives not designated as hedging instruments	$	3,947.40		$	44.9		$	44.8		$	3,499.90		$	47.9	$	46.3
	(1)     The Company offsets mark-to-market adjustments, interest receivable, interest payable and cash collateral received on interest-rate swaps that are executed with the same counterparty under a master netting agreement, and reports the net balance in other assets or other liabilities in the consolidated balance sheets. For purposes of this disclosure, mark-to-market adjustments, interest receivable and interest payable are presented on a gross basis and cash collateral is excluded from fair value amounts.
Schedule of the amount of gains and losses on derivative contracts not designated as hedges	'
	(in millions)	Location in Consolidated		For the three months ended						For the nine months ended
	Derivatives Not Designated			September 30,						September 30,
	as Hedging Instruments	Statements of Income		2014			2013			2014			2013
	Interest-rate contracts	Other noninterest income		$	—		$	(0.3	)	$	(1.0	)	$	0.9
	Option contracts	Other noninterest income		0.1			(0.1		)	0.1			0.3
	Foreign exchange contracts	International services income		8.7			7.2			24.2			20.4
	Equity warrants	Other noninterest income		—			—			0.1			—
	Total income			$	8.8		$	6.8		$	23.4		$	21.6

Balance_Sheet_Offsetting_Table

Balance Sheet Offsetting (Tables)	9 Months Ended
	Sep. 30, 2014
Balance Sheet Offsetting	'
Schedule of information about financial instruments that are eligible for offset	'
		Gross		Gross			Net Amount		Gross Amounts
							Presented		Not Offset in the
									Balance Sheet
	(in thousands)	Amount		Amount			in the		Securities			Cash			Net
		Recognized		Offset			Balance Sheet		Collateral			Collateral			Amount
	September 30, 2014
	Financial assets:
	Reverse repurchase agreements	$	700,462	$	(500,156	)	$	200,306	$	(200,000	)	$	—		$	306
	Derivatives not designated as hedging instruments	10,838		(5,318		)	5,520		—			—			5,520
	Total financial assets	$	711,300	$	(505,474	)	$	205,826	$	(200,000	)	$	—		$	5,826
	Financial liabilities:
	Repurchase agreements	$	500,156	$	(500,156	)	$	—	$	—		$	—		$	—
	Derivatives not designated as hedging instruments	39,432		(5,318		)	34,114		(11,684		)	(17,707		)	4,723
	Total financial liabilities	$	539,588	$	(505,474	)	$	34,114	$	(11,684	)	$	(17,707	)	$	4,723
	December 31, 2013
	Financial assets:
	Reverse repurchase agreements	$	200,000	$	—		$	200,000	$	(200,000	)	$	—		$	—
	Derivatives not designated as hedging instruments	18,749		(13,323		)	5,426		—			—			5,426
	Total financial assets	$	218,749	$	(13,323	)	$	205,426	$	(200,000	)	$	—		$	5,426
	Financial liabilities:
	Derivatives not designated as hedging instruments	$	32,193	$	(13,323	)	$	18,870	$	(12,376	)	$	(7,761	)	$	(1,267	)
	Total financial liabilities	$	32,193	$	(13,323	)	$	18,870	$	(12,376	)	$	(7,761	)	$	(1,267	)

Noncontrolling_Interest_Tables

Noncontrolling Interest (Tables)	9 Months Ended
	Sep. 30, 2014
Noncontrolling Interest	'
Schedule of summary for redeemable noncontrolling interest	'
		For the nine months ended
		September 30,
	(in thousands)	2014			2013
	Balance, beginning of period	$	39,768		$	41,112
	Net income	2,056			1,657
	Distributions to redeemable noncontrolling interest	(2,366		)	(1,285		)
	Additions and redemptions, net	(403		)	(1,625		)
	Adjustments to fair value	8,167			(19		)
	Balance, end of period	$	47,222		$	39,840

Segment_Results_Tables

Segment Results (Tables)	9 Months Ended
	Sep. 30, 2014
Segment Results	'
Schedule of segment results	'
		For the three months ended September 30, 2014
		Commercial and			Wealth					Consolidated
	(in thousands)	Private Banking			Management		Other			Company
	Earnings Summary:
	Net interest income	$	204,965		$	452	$	10,359		$	215,776
	(Reversal of) provision for credit losses on loans and leases, excluding covered loans	(8,000		)	—		—			(8,000		)
	Provision for losses on covered loans	589			—		—			589
	Noninterest income	53,391			69,974		(15,448		)	107,917
	Depreciation and amortization	2,786			1,797		5,119			9,702
	Noninterest expense	181,632			57,726		(21,858		)	217,500
	Income before income taxes	81,349			10,903		11,650			103,902
	Provision for income taxes	27,158			3,357		3,889			34,404
	Net income	54,191			7,546		7,761			69,498
	Less: Net income attributable to noncontrolling interest	—			847		—			847
	Net income attributable to City National Corporation	$	54,191		$	6,699	$	7,761		$	68,651
	Selected Average Balances:
	Loans and leases, excluding covered loans	$	18,777,758		$	—	$	60,002		$	18,837,760
	Covered loans	580,200			—		—			580,200
	Total assets	19,482,692			738,013		10,689,909			30,910,614
	Deposits	26,481,108			71,595		277,930			26,830,633
	Goodwill	393,176			249,079		—			642,255
	Customer-relationship intangibles, net	2,335			34,689		—			37,024
		For the three months ended September 30, 2013
		Commercial and			Wealth					Consolidated
	(in thousands)	Private Banking			Management		Other			Company
	Earnings Summary:
	Net interest income	$	195,112		$	242	$	18,917		$	214,271
	Provision for losses on covered loans	2,496			—		—			2,496
	Noninterest income	38,602			57,535		(7,254		)	88,883
	Depreciation and amortization	3,263			1,878		4,618			9,759
	Noninterest expense	169,862			48,341		(18,598		)	199,605
	Income before income taxes	58,093			7,558		25,643			91,294
	Provision for income taxes	17,329			2,073		7,650			27,052
	Net income	40,764			5,485		17,993			64,242
	Less: Net income attributable to noncontrolling interest	—			609		—			609
	Net income attributable to City National Corporation	$	40,764		$	4,876	$	17,993		$	63,633
	Selected Average Balances:
	Loans and leases, excluding covered loans	$	15,989,181		$	—	$	50,572		$	16,039,753
	Covered loans	818,928			—		—			818,928
	Total assets	17,011,547			644,677		10,404,910			28,061,134
	Deposits	23,817,083			76,052		408,512			24,301,647
	Goodwill	393,176			249,446		—			642,622
	Customer-relationship intangibles, net	4,445			39,024		—			43,469
		For the nine months ended September 30, 2014
		Commercial and			Wealth					Consolidated
	(in thousands)	Private Banking			Management		Other			Company
	Earnings Summary:
	Net interest income	$	603,170		$	1,253	$	30,253		$	634,676
	(Reversal of) provision for credit losses on loans and leases, excluding covered loans	(9,000		)	—		—			(9,000		)
	Provision for losses on covered loans	3,783			—		—			3,783
	Noninterest income	142,536			203,538		(35,810		)	310,264
	Depreciation and amortization	8,381			5,310		14,665			28,356
	Noninterest expense	533,442			167,858		(61,939		)	639,361
	Income before income taxes	209,100			31,623		41,717			282,440
	Provision for income taxes	67,507			9,546		13,468			90,521
	Net income	141,593			22,077		28,249			191,919
	Less: Net income attributable to noncontrolling interest	—			2,056		—			2,056
	Net income attributable to City National Corporation	$	141,593		$	20,021	$	28,249		$	189,863
	Selected Average Balances:
	Loans and leases, excluding covered loans	$	17,993,033		$	—	$	57,583		$	18,050,616
	Covered loans	639,592			—		—			639,592
	Total assets	18,814,042			696,527		10,600,175			30,110,744
	Deposits	25,710,863			77,657		254,929			26,043,449
Goodwill	393,176			249,322		—			642,498
Customer-relationship intangibles, net	2,717			35,788		—			38,505
	For the nine months ended September 30, 2013
	Commercial and			Wealth					Consolidated
(in thousands)	Private Banking			Management		Other			Company
Earnings Summary:
Net interest income	$	564,132		$	803	$	53,328		$	618,263
Provision for losses on covered loans	461			—		—			461
Noninterest income	119,418			171,461		(26,259		)	264,620
Depreciation and amortization	10,505			5,654		13,884			30,043
Noninterest expense	511,703			144,480		(54,093		)	602,090
Income before income taxes	160,881			22,130		67,278			250,289
Provision for income taxes	47,712			6,071		19,952			73,735
Net income	113,169			16,059		47,326			176,554
Less: Net income attributable to noncontrolling interest	—			1,657		—			1,657
Net income attributable to City National Corporation	$	113,169		$	14,402	$	47,326		$	174,897
Selected Average Balances:
Loans and leases, excluding covered loans	$	15,378,936		$	—	$	53,303		$	15,432,239
Covered loans	905,411			—		—			905,411
Total assets	16,502,985			647,273		10,597,656			27,747,914
Deposits	22,696,050			100,922		487,093			23,284,065
Goodwill	393,176			249,446		—			642,622
Customer-relationship intangibles, net	5,174			40,197		—			45,371

Summary_of_Significant_Account2

Summary of Significant Accounting Policies (Details)	9 Months Ended
	Sep. 30, 2014
	item
Summary of Significant Accounting Policies	'
Number of offices for delivery of banking, investment and trust services	77
Number of investment advisory affiliates	4
Number of unconsolidated subsidiary	1

Fair_Value_Measurements_Detail

Fair Value Measurements (Details) (USD $)

9 Months Ended

12 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

In Thousands, unless otherwise specified

Sep. 30, 2013

Dec. 31, 2013

Sep. 30, 2014

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2014

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Dec. 31, 2013

U.S. Treasury

U.S. Treasury

Federal agency - Debt

Federal agency - Debt

Federal agency - MBS

Federal agency - MBS

CMOs - Federal agency

CMOs - Federal agency

CMOs - Non-agency

CMOs - Non-agency

State and municipal

State and municipal

Other debt securities

Other debt securities

Equity securities and mutual funds

Equity securities and mutual funds

Measured on a Recurring Basis

Measured on a Recurring Basis

Measured on a Recurring Basis

Measured on a Recurring Basis

Measured on a Recurring Basis

Measured on a Recurring Basis

Measured on a Recurring Basis

Measured on a Recurring Basis

Measured on a Recurring Basis

Measured on a Recurring Basis

Measured on a Recurring Basis

Measured on a Recurring Basis

Measured on a Recurring Basis

Measured on a Recurring Basis

Measured on a Recurring Basis

Measured on a Recurring Basis

Measured on a Recurring Basis

Measured on a Recurring Basis

Measured on a Recurring Basis

Measured on a Recurring Basis

Measured on a Recurring Basis

Measured on a Recurring Basis

Measured on a Recurring Basis

Measured on a Recurring Basis

Measured on a Recurring Basis

Measured on a Recurring Basis

Measured on a Recurring Basis

Measured on a Recurring Basis

Measured on a Recurring Basis

Measured on a Recurring Basis

Measured on a Recurring Basis

Measured on a Recurring Basis

Measured on a Recurring Basis

Measured on a Recurring Basis

Measured on a Recurring Basis

Measured on a Recurring Basis

Measured on a Recurring Basis

Measured on a Recurring Basis

Measured on a Recurring Basis

Measured on a Recurring Basis

Measured on a Recurring Basis

Measured on a Recurring Basis

Measured on a Nonrecurring Basis

Measured on a Nonrecurring Basis

Measured on a Nonrecurring Basis

Measured on a Nonrecurring Basis

Measured on a Nonrecurring Basis

Measured on a Nonrecurring Basis

Measured on a Nonrecurring Basis

Measured on a Nonrecurring Basis

Measured on a Nonrecurring Basis

Measured on a Nonrecurring Basis

Measured on a Nonrecurring Basis

Measured on a Nonrecurring Basis

Measured on a Nonrecurring Basis

Measured on a Nonrecurring Basis

Measured on a Nonrecurring Basis

Measured on a Nonrecurring Basis

Measured on a Nonrecurring Basis

Measured on a Nonrecurring Basis

Measured on a Nonrecurring Basis

Measured on a Nonrecurring Basis

Measured on a Nonrecurring Basis

Measured on a Nonrecurring Basis

Measured on a Nonrecurring Basis

Measured on a Nonrecurring Basis

Measured on a Nonrecurring Basis

Measured on a Nonrecurring Basis

Measured on a Nonrecurring Basis

Measured on a Nonrecurring Basis

Measured on a Nonrecurring Basis

Measured on a Nonrecurring Basis

Measured on a Nonrecurring Basis

Measured on a Nonrecurring Basis

Measured on a Nonrecurring Basis

Measured on a Nonrecurring Basis

Measured on a Nonrecurring Basis

Fair Value

Fair Value

Fair Value

Fair Value

Fair Value

Fair Value

Fair Value

Fair Value

Fair Value

Fair Value

Fair Value

Fair Value

Fair Value

Fair Value

Fair Value

Fair Value

Fair Value

Fair Value

Quoted Prices in Active Markets Level 1

Quoted Prices in Active Markets Level 1

Quoted Prices in Active Markets Level 1

Quoted Prices in Active Markets Level 1

Quoted Prices in Active Markets Level 1

Quoted Prices in Active Markets Level 1

Significant Other Observable Inputs Level 2

Significant Other Observable Inputs Level 2

Significant Other Observable Inputs Level 2

Significant Other Observable Inputs Level 2

Significant Other Observable Inputs Level 2

Significant Other Observable Inputs Level 2

Significant Other Observable Inputs Level 2

Significant Other Observable Inputs Level 2

Significant Other Observable Inputs Level 2

Significant Other Observable Inputs Level 2

Significant Other Observable Inputs Level 2

Significant Other Observable Inputs Level 2

Significant Other Observable Inputs Level 2

Significant Other Observable Inputs Level 2

Significant Unobservable Inputs Level 3

Significant Unobservable Inputs Level 3

Significant Unobservable Inputs Level 3

Significant Unobservable Inputs Level 3

Commercial real estate mortgages

Commercial real estate mortgages

Commercial real estate mortgages

Residential mortgages

Residential mortgages

Residential mortgages

Residential mortgages

Home equity loans and lines of credit

Installment

Other real estate owned

Other real estate owned

Other real estate owned

Other real estate owned

Private equity and alternative investments

Private equity and alternative investments

Fair Value

Fair Value

Fair Value

Fair Value

Fair Value

Fair Value

Fair Value

Significant Unobservable Inputs Level 3

Significant Unobservable Inputs Level 3

Significant Unobservable Inputs Level 3

Significant Unobservable Inputs Level 3

Significant Unobservable Inputs Level 3

Significant Unobservable Inputs Level 3

Significant Unobservable Inputs Level 3

Significant Unobservable Inputs Level 3

Significant Unobservable Inputs Level 3

U.S. Treasury

U.S. Treasury

Federal agency - Debt

Federal agency - Debt

Federal agency - MBS

Federal agency - MBS

CMOs - Federal agency

CMOs - Federal agency

CMOs - Non-agency

CMOs - Non-agency

State and municipal

State and municipal

Other debt securities

Other debt securities

Equity securities and mutual funds

Equity securities and mutual funds

U.S. Treasury

U.S. Treasury

Equity securities and mutual funds

Equity securities and mutual funds

Federal agency - Debt

Federal agency - Debt

Federal agency - MBS

Federal agency - MBS

CMOs - Federal agency

CMOs - Federal agency

CMOs - Non-agency

CMOs - Non-agency

State and municipal

State and municipal

Other debt securities

Other debt securities

State and municipal

State and municipal

Commercial real estate mortgages

Residential mortgages

Other real estate owned

Other real estate owned

Private equity and alternative investments

Maximum

Maximum

Commercial real estate mortgages

Residential mortgages

Other real estate owned

Other real estate owned

Private equity and alternative investments

Fair Value Measurements

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Fair value of assets transfers from Level 1 to Level 2

'

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$0

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Fair value of assets transfers from Level 2 to Level 1

'

'

0

'

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'

'

'

'

'

'

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'

'

'

'

'

'

'

Fair value of liabilities transfers from Level 1 to Level 2

'

'

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

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'

Fair value of liabilities transfers from Level 2 to Level 1

'

'

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

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'

'

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'

'

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'

'

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'

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Assets

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

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'

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'

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'

'

'

'

'

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'

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'

'

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'

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'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Securities available-for-sale

'

6,241,117

5,629,176

46,765

35,335

1,326,728

1,410,536

106,976

157,226

3,559,078

3,997,298

25,282

37,462

381,993

415,995

177,042

178,822

5,312

8,443

'

'

46,765

35,335

1,326,728

1,410,536

106,976

157,226

3,559,078

3,997,298

25,282

37,462

381,993

415,995

177,042

178,822

5,312

8,443

'

'

46,765

35,335

5,312

8,443

'

'

1,326,728

1,410,536

106,976

157,226

3,559,078

3,997,298

25,282

37,462

378,469

412,362

177,042

178,822

'

'

3,524

3,633

'

'

'

'

'

'

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'

'

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'

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'

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'

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Trading securities

'

82,357

125,910

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

125,910

82,357

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

122,145

80,659

'

'

'

'

3,765

1,698

'

'

'

'

'

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'

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Derivatives assets

'

'

'

'

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'

'

'

'

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'

'

'

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'

'

39,580

34,613

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

4,814

3,487

'

'

'

'

34,086

31,126

'

'

'

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'

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'

'

680

'

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Contingent consideration asset

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2,930

'

'

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2,930

'

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'

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'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Collateral dependent impaired loans

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,220

1,300

'

'

'

'

'

'

'

1,220

1,300

'

'

'

Total assets at fair value

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

5,797,596

6,358,087

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

179,036

127,924

'

'

'

'

5,611,426

6,226,530

'

'

'

'

'

'

'

'

'

'

'

'

7,134

3,633

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

8,101

21,666

'

'

8,101

18,251

895

8,101

21,666

'

'

'

'

8,101

18,251

895

Percent of total assets

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

18.00%

21.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1.00%

1.00%

'

'

'

'

'

Assets purchases measured on fair value of Level 3 on a recurring basis

0

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Liabilities

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Derivatives liabilities

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

39,463

32,970

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

5,735

3,333

'

'

'

'

33,728

29,637

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Contingent consideration liability

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

34,493

49,900

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

34,493

49,900

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

FDIC clawback liability

'

'

14,524

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

14,524

11,967

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

14,524

11,967

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Other liabilities

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

901

1,044

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

901

1,044

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total liabilities at fair value

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

89,381

95,881

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

5,735

3,333

'

'

'

'

34,629

30,681

'

'

'

'

'

'

'

'

'

'

'

'

49,017

61,867

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Redeemable noncontrolling interest

'

39,768

47,222

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

47,222

39,768

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

47,222

39,768

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Net (losses) gains recognized for assets measured at fair value on nonrecurring basis

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Collateral dependent impaired loans:

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-934

-5

-641

7

-2

81

-224

116

-138

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total net gains (losses) recognized

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

($276)

($1,409)

$860

($6,470)

'

'

'

'

'

'

'

'

'

($283)

($364)

$784

($5,075)

($109)

($508)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Fair_Value_Measurements_Detail1

Fair Value Measurements (Details 2) (Other real estate owned, USD $)	Sep. 30, 2014
In Thousands, unless otherwise specified
Other real estate owned	'
Information about valuation method, inputs and assumptions for nonrecurring Level 3 fair value measurements	'
Fair value of assets	$8,101

Fair_Value_Measurements_Detail2

Fair Value Measurements (Details 3) (USD $)	9 Months Ended		12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Total realized/unrealized gains (losses):	'	'	'
Additions / Purchases	'	$0	$0
Transfers	0	0	'
Paydowns received on Level 3 assets measured on a recurring basis	100,000	3,700,000	'
Securities Available-for-Sale	'	'	'
Level 3 Assets Measured on a Recurring Basis	'	'	'
Balance, beginning of period	3,633,000	65,187,000	65,187,000
Total realized/unrealized gains (losses):	'	'	'
Included in other comprehensive income	-9,000	-35,000	'
Settlements	-100,000	-3,655,000	'
Other (1)	'	91,000	'
Balance, end of period	3,524,000	61,588,000	'
Contingent Consideration Asset	'	'	'
Total realized/unrealized gains (losses):	'	'	'
Additions / Purchases	2,930,000	'	'
Balance, end of period	2,930,000	'	'
Equity Warrants	'	'	'
Total realized/unrealized gains (losses):	'	'	'
Included in earnings	78,000	'	'
Additions / Purchases	631,000	'	'
Settlements	-29,000	'	'
Balance, end of period	$680,000	'	'

Fair_Value_Measurements_Detail3

Fair Value Measurements (Details 4) (USD $)	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Contingent Consideration Liability	'	'
Level 3 Liabilities Measured on a Recurring Basis	'	'
Balance, beginning of period	($49,900,000)	($47,724,000)
Total realized/unrealized gains (losses):	'	'
Settlements	17,266,000	'
Other (1)	-1,859,000	-1,626,000
Balance, end of period	-34,493,000	-49,350,000
Contingent Consideration Liability | Rochdale Investment Management, LLC	'	'
Total realized/unrealized gains (losses):	'	'
Period of additional cash consideration payment	'6 years	'
Low-end of the potential range of estimate of total consideration payment	26,000,000	'
High-end of the potential range of estimate of total consideration payment	55,000,000	'
FDIC Clawback Liability	'	'
Level 3 Liabilities Measured on a Recurring Basis	'	'
Balance, beginning of period	-11,967,000	-9,970,000
Total realized/unrealized gains (losses):	'	'
Included in earnings	-2,557,000	-1,309,000
Balance, end of period	($14,524,000)	($11,279,000)

Fair_Value_Measurements_Detail4

Fair Value Measurements (Details 5) (USD $)	Sep. 30, 2014	Dec. 31, 2013
Financial Assets:	'	'
Cash and due from banks	$503,647,000	$183,227,000
Due from banks - interest-bearing	625,183,000	552,719,000
Securities purchased under resale agreements	200,306,000	200,000,000
Securities held-to-maturity	3,461,988,000	2,883,935,000
Loans and leases, net of allowance	19,035,285,000	16,867,854,000
Covered loans, net of allowance	543,347,000	700,989,000
FDIC indemnification asset	59,917,000	89,227,000
Investment in FHLB and FRB stock	58,400,000	64,400,000
Quoted Prices in Active Markets Level 1	'	'
Financial Assets:	'	'
Cash and due from banks	503,600,000	183,200,000
Due from banks - interest-bearing	625,200,000	552,700,000
Significant Other Observable Inputs Level 2	'	'
Financial Assets:	'	'
Securities purchased under resale agreements	199,300,000	200,500,000
Securities held-to-maturity	3,462,000,000	2,883,900,000
Investment in FHLB and FRB stock	58,400,000	64,400,000
Financial Liabilities:	'	'
Deposits	27,361,600,000	24,990,800,000
Long-term debt	605,500,000	697,800,000
Significant Unobservable Inputs Level 3	'	'
Financial Assets:	'	'
Loans and leases, net of allowance	19,612,600,000	17,362,900,000
Covered loans, net of allowance	590,300,000	739,500,000
FDIC indemnification asset	48,300,000	74,300,000
Financial Liabilities:	'	'
Deposits	596,200,000	691,400,000
Short-term borrowings	4,600,000	3,900,000
Long-term debt	91,600,000	91,100,000
Carrying Amount	'	'
Financial Assets:	'	'
Cash and due from banks	503,600,000	183,200,000
Due from banks - interest-bearing	625,200,000	552,700,000
Securities purchased under resale agreements	200,000,000	200,000,000
Securities held-to-maturity	3,450,600,000	2,957,800,000
Loans and leases, net of allowance	19,035,300,000	16,867,900,000
Covered loans, net of allowance	543,300,000	701,000,000
FDIC indemnification asset	59,900,000	89,200,000
Investment in FHLB and FRB stock	58,400,000	64,400,000
Financial Liabilities:	'	'
Deposits	27,956,000,000	25,679,400,000
Short-term borrowings	4,600,000	3,900,000
Long-term debt	631,400,000	736,000,000
Fair Value	'	'
Financial Assets:	'	'
Cash and due from banks	503,600,000	183,200,000
Due from banks - interest-bearing	625,200,000	552,700,000
Securities purchased under resale agreements	199,300,000	200,500,000
Securities held-to-maturity	3,462,000,000	2,883,900,000
Loans and leases, net of allowance	19,612,600,000	17,362,900,000
Covered loans, net of allowance	590,300,000	739,500,000
FDIC indemnification asset	48,300,000	74,300,000
Investment in FHLB and FRB stock	58,400,000	64,400,000
Financial Liabilities:	'	'
Deposits	27,957,800,000	25,682,200,000
Short-term borrowings	4,600,000	3,900,000
Long-term debt	$697,100,000	$788,900,000

Securities_Details

Securities (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Securities	'	'	'	'	'
Total securities	$9,210,000,000	'	$9,210,000,000	'	$9,280,000,000
Trading securities, at fair value	125,910,000	'	125,910,000	'	82,357,000
Securities available-for-sale:	'	'	'	'	'
Amortized Cost	5,641,894,000	'	5,641,894,000	'	6,267,691,000
Gross Unrealized Gains	41,111,000	'	41,111,000	'	56,067,000
Gross Unrealized Losses	-53,829,000	'	-53,829,000	'	-82,641,000
Fair Value	5,629,176,000	'	5,629,176,000	'	6,241,117,000
Proceeds from sales of securities	1,000,000	584,700,000	627,102,000	1,835,775,000	'
Securities held-to-maturity:	'	'	'	'	'
Total of debt securities held-to-maturity, amortized cost	3,450,551,000	'	3,450,551,000	'	2,957,843,000
Gross Unrealized Gains	43,910,000	'	43,910,000	'	3,398,000
Gross Unrealized Losses	-32,473,000	'	-32,473,000	'	-77,306,000
Fair Value	3,461,988,000	'	3,461,988,000	'	2,883,935,000
Realized gains and losses	'	'	'	'	'
Gross realized gains	19,000	17,533,000	7,989,000	24,369,000	'
Gross realized losses	-5,000	-11,745,000	-486,000	-11,745,000	'
Net realized gains	14,000	5,788,000	7,503,000	12,624,000	'
Interest and dividend income on securities (including trading securities)	'	'	'	'	'
Taxable interest income	37,500,000	35,500,000	111,000,000	112,100,000	'
Nontaxable interest income	6,400,000	4,500,000	17,900,000	13,300,000	'
Dividend income	22,000	19,000	47,000	100,000	'
Total debt securities	'	'	'	'	'
Securities available-for-sale:	'	'	'	'	'
Amortized Cost	5,641,273,000	'	5,641,273,000	'	6,267,354,000
Gross Unrealized Gains	36,420,000	'	36,420,000	'	47,961,000
Gross Unrealized Losses	-53,829,000	'	-53,829,000	'	-82,641,000
Fair Value	5,623,864,000	'	5,623,864,000	'	6,232,674,000
U.S. Treasury	'	'	'	'	'
Securities available-for-sale:	'	'	'	'	'
Amortized Cost	46,716,000	'	46,716,000	'	35,312,000
Gross Unrealized Gains	49,000	'	49,000	'	23,000
Fair Value	46,765,000	'	46,765,000	'	35,335,000
Federal agency - Debt	'	'	'	'	'
Securities available-for-sale:	'	'	'	'	'
Amortized Cost	1,329,891,000	'	1,329,891,000	'	1,417,509,000
Gross Unrealized Gains	581,000	'	581,000	'	938,000
Gross Unrealized Losses	-3,744,000	'	-3,744,000	'	-7,911,000
Fair Value	1,326,728,000	'	1,326,728,000	'	1,410,536,000
Securities held-to-maturity:	'	'	'	'	'
Total of debt securities held-to-maturity, amortized cost	296,900,000	'	296,900,000	'	178,413,000
Gross Unrealized Gains	4,013,000	'	4,013,000	'	133,000
Gross Unrealized Losses	-1,154,000	'	-1,154,000	'	-5,122,000
Fair Value	299,759,000	'	299,759,000	'	173,424,000
Federal agency - MBS	'	'	'	'	'
Securities available-for-sale:	'	'	'	'	'
Amortized Cost	105,992,000	'	105,992,000	'	156,399,000
Gross Unrealized Gains	2,826,000	'	2,826,000	'	3,615,000
Gross Unrealized Losses	-1,842,000	'	-1,842,000	'	-2,788,000
Fair Value	106,976,000	'	106,976,000	'	157,226,000
Securities held-to-maturity:	'	'	'	'	'
Total of debt securities held-to-maturity, amortized cost	582,365,000	'	582,365,000	'	445,360,000
Gross Unrealized Gains	7,137,000	'	7,137,000	'	1,005,000
Gross Unrealized Losses	-5,186,000	'	-5,186,000	'	-11,930,000
Fair Value	584,316,000	'	584,316,000	'	434,435,000
CMOs - Federal agency	'	'	'	'	'
Securities available-for-sale:	'	'	'	'	'
Amortized Cost	3,583,667,000	'	3,583,667,000	'	4,037,348,000
Gross Unrealized Gains	23,201,000	'	23,201,000	'	30,721,000
Gross Unrealized Losses	-47,790,000	'	-47,790,000	'	-70,771,000
Fair Value	3,559,078,000	'	3,559,078,000	'	3,997,298,000
Securities held-to-maturity:	'	'	'	'	'
Total of debt securities held-to-maturity, amortized cost	1,847,655,000	'	1,847,655,000	'	1,781,219,000
Gross Unrealized Gains	14,816,000	'	14,816,000	'	1,839,000
Gross Unrealized Losses	-23,018,000	'	-23,018,000	'	-40,621,000
Fair Value	1,839,453,000	'	1,839,453,000	'	1,742,437,000
CMOs - Non-agency	'	'	'	'	'
Securities available-for-sale:	'	'	'	'	'
Amortized Cost	25,521,000	'	25,521,000	'	38,383,000
Gross Unrealized Gains	128,000	'	128,000	'	127,000
Gross Unrealized Losses	-367,000	'	-367,000	'	-1,048,000
Fair Value	25,282,000	'	25,282,000	'	37,462,000
State and municipal	'	'	'	'	'
Securities available-for-sale:	'	'	'	'	'
Amortized Cost	374,948,000	'	374,948,000	'	407,312,000
Gross Unrealized Gains	7,131,000	'	7,131,000	'	8,806,000
Gross Unrealized Losses	-86,000	'	-86,000	'	-123,000
Fair Value	381,993,000	'	381,993,000	'	415,995,000
Securities held-to-maturity:	'	'	'	'	'
Total of debt securities held-to-maturity, amortized cost	625,860,000	'	625,860,000	'	454,155,000
Gross Unrealized Gains	17,884,000	'	17,884,000	'	421,000
Gross Unrealized Losses	-2,925,000	'	-2,925,000	'	-19,014,000
Fair Value	640,819,000	'	640,819,000	'	435,562,000
Other debt securities	'	'	'	'	'
Securities available-for-sale:	'	'	'	'	'
Amortized Cost	174,538,000	'	174,538,000	'	175,091,000
Gross Unrealized Gains	2,504,000	'	2,504,000	'	3,731,000
Fair Value	177,042,000	'	177,042,000	'	178,822,000
Securities held-to-maturity:	'	'	'	'	'
Total of debt securities held-to-maturity, amortized cost	97,771,000	'	97,771,000	'	98,696,000
Gross Unrealized Gains	60,000	'	60,000	'	'
Gross Unrealized Losses	-190,000	'	-190,000	'	-619,000
Fair Value	97,641,000	'	97,641,000	'	98,077,000
Equity securities and mutual funds	'	'	'	'	'
Securities available-for-sale:	'	'	'	'	'
Amortized Cost	621,000	'	621,000	'	337,000
Gross Unrealized Gains	4,691,000	'	4,691,000	'	8,106,000
Fair Value	$5,312,000	'	$5,312,000	'	$8,443,000

Securities_Details_2

Securities (Details 2) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Expected remaining maturities of debt securities available-for-sale, fair value	'	'
Fair Value	$5,629,176	$6,241,117
Expected remaining maturities of debt securities held-to-maturity, amortized cost	'	'
Total of debt securities held-to-maturity, amortized cost	3,450,551	2,957,843
Total debt securities	'	'
Expected remaining maturities of debt securities available-for-sale, fair value	'	'
Securities available-for-sale, One year or less, fair value	504,669	'
Securities available-for-sale, Over 1 year through 5 years, fair value	4,789,290	'
Securities available-for-sale, Over 5 years through 10 years, fair value	326,579	'
Securities available-for-sale, Over 10 years, fair value	3,326	'
Fair Value	5,623,864	6,232,674
Expected remaining maturities of debt securities available-for-sale, amortized cost	'	'
Securities available-for-sale, One year or less, amortized cost	501,637	'
Securities available-for-sale, Over 1 year through 5 years, amortized cost	4,801,098	'
Securities available-for-sale, Over 5 years through 10 years, amortized cost	335,138	'
Securities available-for-sale, Over 10 years, amortized cost	3,400	'
Total of debt securities available-for-sale, amortized cost	5,641,273	'
Expected remaining maturities of debt securities held-to-maturity, amortized cost	'	'
Securities held-to-maturity, Over 1 year through 5 years, amortized cost	1,006,402	'
Securities held-to-maturity, Over 5 years through 10 years, amortized cost	2,163,743	'
Securities held-to-maturity, Over 10 years, amortized cost	280,406	'
U.S. Treasury	'	'
Expected remaining maturities of debt securities available-for-sale, fair value	'	'
Securities available-for-sale, One year or less, fair value	23,134	'
Securities available-for-sale, Over 1 year through 5 years, fair value	23,631	'
Fair Value	46,765	35,335
Federal agency - Debt	'	'
Expected remaining maturities of debt securities available-for-sale, fair value	'	'
Securities available-for-sale, One year or less, fair value	188,384	'
Securities available-for-sale, Over 1 year through 5 years, fair value	1,099,385	'
Securities available-for-sale, Over 5 years through 10 years, fair value	38,959	'
Fair Value	1,326,728	1,410,536
Expected remaining maturities of debt securities held-to-maturity, amortized cost	'	'
Securities held-to-maturity, Over 5 years through 10 years, amortized cost	93,517	'
Securities held-to-maturity, Over 10 years, amortized cost	203,383	'
Total of debt securities held-to-maturity, amortized cost	296,900	178,413
Federal agency - MBS	'	'
Expected remaining maturities of debt securities available-for-sale, fair value	'	'
Securities available-for-sale, Over 1 year through 5 years, fair value	89,263	'
Securities available-for-sale, Over 5 years through 10 years, fair value	17,713	'
Fair Value	106,976	157,226
Expected remaining maturities of debt securities held-to-maturity, amortized cost	'	'
Securities held-to-maturity, Over 1 year through 5 years, amortized cost	84,998	'
Securities held-to-maturity, Over 5 years through 10 years, amortized cost	492,868	'
Securities held-to-maturity, Over 10 years, amortized cost	4,499	'
Total of debt securities held-to-maturity, amortized cost	582,365	445,360
CMOs - Federal agency	'	'
Expected remaining maturities of debt securities available-for-sale, fair value	'	'
Securities available-for-sale, One year or less, fair value	70,795	'
Securities available-for-sale, Over 1 year through 5 years, fair value	3,218,376	'
Securities available-for-sale, Over 5 years through 10 years, fair value	269,907	'
Fair Value	3,559,078	3,997,298
Expected remaining maturities of debt securities held-to-maturity, amortized cost	'	'
Securities held-to-maturity, Over 1 year through 5 years, amortized cost	720,174	'
Securities held-to-maturity, Over 5 years through 10 years, amortized cost	1,127,481	'
Total of debt securities held-to-maturity, amortized cost	1,847,655	1,781,219
CMOs - Non-agency	'	'
Expected remaining maturities of debt securities available-for-sale, fair value	'	'
Securities available-for-sale, One year or less, fair value	1,853	'
Securities available-for-sale, Over 1 year through 5 years, fair value	23,429	'
Fair Value	25,282	37,462
State and municipal	'	'
Expected remaining maturities of debt securities available-for-sale, fair value	'	'
Securities available-for-sale, One year or less, fair value	131,825	'
Securities available-for-sale, Over 1 year through 5 years, fair value	246,842	'
Securities available-for-sale, Over 10 years, fair value	3,326	'
Fair Value	381,993	415,995
Expected remaining maturities of debt securities held-to-maturity, amortized cost	'	'
Securities held-to-maturity, Over 1 year through 5 years, amortized cost	103,459	'
Securities held-to-maturity, Over 5 years through 10 years, amortized cost	449,877	'
Securities held-to-maturity, Over 10 years, amortized cost	72,524	'
Total of debt securities held-to-maturity, amortized cost	625,860	454,155
Other debt securities	'	'
Expected remaining maturities of debt securities available-for-sale, fair value	'	'
Securities available-for-sale, One year or less, fair value	88,678	'
Securities available-for-sale, Over 1 year through 5 years, fair value	88,364	'
Fair Value	177,042	178,822
Expected remaining maturities of debt securities held-to-maturity, amortized cost	'	'
Securities held-to-maturity, Over 1 year through 5 years, amortized cost	97,771	'
Total of debt securities held-to-maturity, amortized cost	$97,771	$98,696

Securities_Details_3

Securities (Details 3) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Available-for-sale securities	'	'	'	'
Impairment losses recognized in earnings on other-than-temporarily impaired securities	$75	$144	$323	$326
Non-credit-related losses other-than-temporary impairment on available-for-sale securities	243	'	243	'
Impairment losses recognized in other comprehensive income for securities held- to-maturity	0	0	0	0
Total debt securities	'	'	'	'
Credit related other-than-temporary impairment recognized in earnings	'	'	'	'
Balance, beginning of period	2,395	3,654	4,549	16,486
Subsequent credit-related impairment	75	144	323	326
Reduction for securities sold or redeemed	'	'	-2,402	-12,761
Reduction for increase in expected cash flows on securities for which OTTI was previously recognized	'	-421	'	-674
Balance, end of period	$2,470	$3,377	$2,470	$3,377

Securities_Details_4

Securities (Details 4) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Securities available-for-sale:	'	'
Securities available-for-sale, Fair Value, Less than 12 months	$1,515,181	$2,708,675
Securities available-for-sale, Estimated Unrealized Loss, Less than 12 months	5,014	44,276
Securities available-for-sale, Fair Value, 12 months or greater	1,600,217	784,342
Securities available-for-sale, Estimated Unrealized Loss, 12 months or greater	48,815	38,365
Securities available-for-sale, Fair Value, Total	3,115,398	3,493,017
Securities available-for-sale, Estimated Unrealized Loss, Total	53,829	82,641
Securities held-to-maturity:	'	'
Securities held-to-maturity, Fair Value, Less than 12 months	990,429	2,462,226
Securities held-to-maturity, Estimated Unrealized Loss, Less than 12 months	13,077	66,879
Securities held-to-maturity, Fair Value, 12 months or greater	669,272	119,716
Securities held-to-maturity, Estimated Unrealized Loss, 12 months or greater	19,396	10,427
Securities held-to-maturity, Fair Value, Total	1,659,701	2,581,942
Securities held-to-maturity, Estimated Unrealized Loss, Total	32,473	77,306
Federal agency - Debt	'	'
Securities available-for-sale:	'	'
Securities available-for-sale, Fair Value, Less than 12 months	844,088	1,026,142
Securities available-for-sale, Estimated Unrealized Loss, Less than 12 months	1,412	7,911
Securities available-for-sale, Fair Value, 12 months or greater	271,824	'
Securities available-for-sale, Estimated Unrealized Loss, 12 months or greater	2,332	'
Securities available-for-sale, Fair Value, Total	1,115,912	1,026,142
Securities available-for-sale, Estimated Unrealized Loss, Total	3,744	7,911
Securities held-to-maturity:	'	'
Securities held-to-maturity, Fair Value, Less than 12 months	25,034	156,290
Securities held-to-maturity, Estimated Unrealized Loss, Less than 12 months	22	5,122
Securities held-to-maturity, Fair Value, 12 months or greater	72,829	'
Securities held-to-maturity, Estimated Unrealized Loss, 12 months or greater	1,132	'
Securities held-to-maturity, Fair Value, Total	97,863	156,290
Securities held-to-maturity, Estimated Unrealized Loss, Total	1,154	5,122
Other information	'	'
Number of available-for-sale and held-to-maturity securities in the unrealized loss position	49	47
Federal agency - MBS	'	'
Securities available-for-sale:	'	'
Securities available-for-sale, Fair Value, Less than 12 months	17,748	17,962
Securities available-for-sale, Estimated Unrealized Loss, Less than 12 months	64	85
Securities available-for-sale, Fair Value, 12 months or greater	40,660	43,492
Securities available-for-sale, Estimated Unrealized Loss, 12 months or greater	1,778	2,703
Securities available-for-sale, Fair Value, Total	58,408	61,454
Securities available-for-sale, Estimated Unrealized Loss, Total	1,842	2,788
Securities held-to-maturity:	'	'
Securities held-to-maturity, Fair Value, Less than 12 months	119,935	321,090
Securities held-to-maturity, Estimated Unrealized Loss, Less than 12 months	726	10,513
Securities held-to-maturity, Fair Value, 12 months or greater	122,965	15,338
Securities held-to-maturity, Estimated Unrealized Loss, 12 months or greater	4,460	1,417
Securities held-to-maturity, Fair Value, Total	242,900	336,428
Securities held-to-maturity, Estimated Unrealized Loss, Total	5,186	11,930
Other information	'	'
Number of available-for-sale and held-to-maturity securities in the unrealized loss position	44	44
CMOs - Federal agency	'	'
Securities available-for-sale:	'	'
Securities available-for-sale, Fair Value, Less than 12 months	651,362	1,637,994
Securities available-for-sale, Estimated Unrealized Loss, Less than 12 months	3,535	35,922
Securities available-for-sale, Fair Value, 12 months or greater	1,270,590	728,101
Securities available-for-sale, Estimated Unrealized Loss, 12 months or greater	44,255	34,849
Securities available-for-sale, Fair Value, Total	1,921,952	2,366,095
Securities available-for-sale, Estimated Unrealized Loss, Total	47,790	70,771
Securities held-to-maturity:	'	'
Securities held-to-maturity, Fair Value, Less than 12 months	743,948	1,539,464
Securities held-to-maturity, Estimated Unrealized Loss, Less than 12 months	12,015	36,435
Securities held-to-maturity, Fair Value, 12 months or greater	353,787	63,276
Securities held-to-maturity, Estimated Unrealized Loss, 12 months or greater	11,003	4,186
Securities held-to-maturity, Fair Value, Total	1,097,735	1,602,740
Securities held-to-maturity, Estimated Unrealized Loss, Total	23,018	40,621
Other information	'	'
Number of available-for-sale and held-to-maturity securities in the unrealized loss position	145	182
CMOs - Non-agency	'	'
Securities available-for-sale:	'	'
Securities available-for-sale, Fair Value, Less than 12 months	1,983	10,056
Securities available-for-sale, Estimated Unrealized Loss, Less than 12 months	3	319
Securities available-for-sale, Fair Value, 12 months or greater	12,979	8,483
Securities available-for-sale, Estimated Unrealized Loss, 12 months or greater	364	729
Securities available-for-sale, Fair Value, Total	14,962	18,539
Securities available-for-sale, Estimated Unrealized Loss, Total	367	1,048
Other information	'	'
Number of available-for-sale and held-to-maturity securities in the unrealized loss position	3	4
State and municipal	'	'
Securities available-for-sale:	'	'
Securities available-for-sale, Fair Value, Less than 12 months	'	16,521
Securities available-for-sale, Estimated Unrealized Loss, Less than 12 months	'	39
Securities available-for-sale, Fair Value, 12 months or greater	4,164	4,266
Securities available-for-sale, Estimated Unrealized Loss, 12 months or greater	86	84
Securities available-for-sale, Fair Value, Total	4,164	20,787
Securities available-for-sale, Estimated Unrealized Loss, Total	86	123
Securities held-to-maturity:	'	'
Securities held-to-maturity, Fair Value, Less than 12 months	22,365	347,305
Securities held-to-maturity, Estimated Unrealized Loss, Less than 12 months	124	14,190
Securities held-to-maturity, Fair Value, 12 months or greater	119,691	41,102
Securities held-to-maturity, Estimated Unrealized Loss, 12 months or greater	2,801	4,824
Securities held-to-maturity, Fair Value, Total	142,056	388,407
Securities held-to-maturity, Estimated Unrealized Loss, Total	2,925	19,014
Other information	'	'
Number of available-for-sale and held-to-maturity securities in the unrealized loss position	249	520
Other debt securities	'	'
Securities held-to-maturity:	'	'
Securities held-to-maturity, Fair Value, Less than 12 months	79,147	98,077
Securities held-to-maturity, Estimated Unrealized Loss, Less than 12 months	190	619
Securities held-to-maturity, Fair Value, Total	79,147	98,077
Securities held-to-maturity, Estimated Unrealized Loss, Total	$190	$619
Other information	'	'
Number of available-for-sale and held-to-maturity securities in the unrealized loss position	7	12
Total debt securities	'	'
Other information	'	'
Number of available-for-sale and held-to-maturity securities in the unrealized loss position	497	809

Other_Investments_Details

Other Investments (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
FHLB and FRB Stock	'	'	'	'	'
Investment in FRB and FHLB stock	$58,400,000	'	$58,400,000	'	$64,400,000
Private Equity and Alternative Investments	'	'	'	'	'
Investments carried at cost	28,977,000	'	28,977,000	'	33,952,000
Recognized impairment losses on cost method investments	0	100,000	0	500,000	'
Private equity and venture capital	'	'	'	'	'
Private Equity and Alternative Investments	'	'	'	'	'
Investments carried at cost	18,284,000	'	18,284,000	'	20,298,000
Real estate	'	'	'	'	'
Private Equity and Alternative Investments	'	'	'	'	'
Investments carried at cost	7,114,000	'	7,114,000	'	7,646,000
Hedge	'	'	'	'	'
Private Equity and Alternative Investments	'	'	'	'	'
Investments carried at cost	1,684,000	'	1,684,000	'	2,733,000
Other	'	'	'	'	'
Private Equity and Alternative Investments	'	'	'	'	'
Investments carried at cost	$1,895,000	'	$1,895,000	'	$3,275,000

Loans_Allowance_for_Loan_and_L2

Loans, Allowance for Loan and Lease Losses, and Reserve for Off-Balance Sheet Credit Commitments (Details) (USD $)

Sep. 30, 2014

Jun. 30, 2014

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Dec. 31, 2012

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Dec. 31, 2013

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Jun. 30, 2014

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Dec. 31, 2012

Sep. 30, 2014

Jun. 30, 2014

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Dec. 31, 2012

Sep. 30, 2014

Jun. 30, 2014

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Dec. 31, 2012

Sep. 30, 2014

Jun. 30, 2014

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Dec. 31, 2012

Sep. 30, 2014

Jun. 30, 2014

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Dec. 31, 2012

Sep. 30, 2014

Dec. 31, 2013

Dec. 31, 2013

Imperial Capital Bank

Imperial Capital Bank

1st Pacific Bank of California

1st Pacific Bank of California

Sun West Bank

Sun West Bank

Nevada Commerce Bank

Nevada Commerce Bank

Commercial

Commercial

Commercial

Commercial

Commercial

Commercial

Commercial

Commercial real estate mortgages

Commercial real estate mortgages

Commercial real estate mortgages

Commercial real estate mortgages

Commercial real estate mortgages

Commercial real estate mortgages

Residential mortgages

Residential mortgages

Residential mortgages

Residential mortgages

Residential mortgages

Residential mortgages

Real estate construction

Real estate construction

Real estate construction

Real estate construction

Real estate construction

Real estate construction

Home equity loans and lines of credit

Home equity loans and lines of credit

Home equity loans and lines of credit

Home equity loans and lines of credit

Home equity loans and lines of credit

Home equity loans and lines of credit

Installment

Installment

Installment

Installment

Installment

Installment

Lease financing

Lease financing

Lease financing

Loans previously reported as lease financing

Imperial Capital Bank

1st Pacific Bank of California

Sun West Bank

Nevada Commerce Bank

Loans previously reported as lease financing

Accounts notes and loans receivable

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'

'

'

'

'

Loans and leases, excluding covered loans

$19,347,988,000

'

$17,170,438,000

$16,566,133,000

'

'

'

'

'

'

'

'

'

'

$8,612,691,000

$7,562,300,000

$158,200,000

'

'

'

'

$3,565,188,000

'

$3,223,001,000

$3,077,183,000

'

'

$5,023,213,000

'

$4,554,311,000

$4,418,231,000

'

'

$585,232,000

'

$367,004,000

$380,489,000

'

'

$759,258,000

'

$709,344,000

$681,879,000

'

'

$178,803,000

'

$151,955,000

$152,107,000

'

'

$623,603,000

$602,523,000

($158,200,000)

Less: Allowance for loan and lease losses

-312,703,000

-311,276,000

-302,584,000

-295,947,000

-289,914,000

-277,888,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-50,989,000

-50,651,000

-50,678,000

-49,926,000

-53,339,000

-48,901,000

-11,467,000

-10,296,000

-11,540,000

-13,114,000

-8,004,000

-10,558,000

-8,745,000

-7,191,000

-6,351,000

-9,691,000

-8,335,000

-11,784,000

-7,028,000

-6,575,000

-6,677,000

-8,298,000

-5,400,000

-7,283,000

-2,384,000

-2,284,000

-1,842,000

-1,872,000

-1,355,000

-1,858,000

'

'

'

Loans and leases, excluding covered loans, net

19,035,285,000

'

16,867,854,000

'

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'

'

'

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'

'

'

'

'

Covered loans

552,715,000

'

716,911,000

'

'

'

492,445,000

630,754,000

24,748,000

40,110,000

13,025,000

18,761,000

22,497,000

27,286,000

2,273,000

10,009,000

'

'

'

'

'

522,883,000

'

666,628,000

'

'

'

5,203,000

'

4,976,000

'

'

'

19,016,000

'

31,184,000

'

'

'

3,089,000

'

3,695,000

'

'

'

251,000

'

419,000

'

'

'

'

'

'

Less: Allowance for loan losses

-9,368,000

-9,103,000

-15,922,000

-25,882,000

-24,414,000

-44,781,000

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Covered loans, net

543,347,000

'

700,989,000

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Total loans and leases

19,900,703,000

'

17,887,349,000

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Net loans and leases

19,578,632,000

'

17,568,843,000

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Unamortized fees, net of deferred costs

800,000

'

2,300,000

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FDIC indemnification asset

59,917,000

'

89,227,000

'

'

'

51,074,000

'

2,431,000

'

3,105,000

'

3,307,000

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FDIC clawback liability

$14,524,000

'

'

'

'

'

'

'

$12,240,000

'

$2,131,000

'

$153,000

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Sharing of recoveries with FDIC on expiration date (as a percent)

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80.00%

80.00%

80.00%

80.00%

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Sharing of recoveries with FDIC on termination date (as a percent)

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80.00%

80.00%

80.00%

80.00%

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'

Loans_Allowance_for_Loan_and_L3

Loans, Allowance for Loan and Lease Losses, and Reserve for Off-Balance Sheet Credit Commitments (Details 2) (Credit Risk)	9 Months Ended
	Sep. 30, 2014
Covered loans	'
Concentrations of credit risk	'
Number of states with largest concentration by loan type	5
Total loans outstanding | Noncovered loans | California	'
Concentrations of credit risk	'
Percent of total loans outstanding (as a percent)	74.00%
Total loans outstanding | Noncovered loans | New York	'
Concentrations of credit risk	'
Percent of total loans outstanding (as a percent)	9.00%
Total loans outstanding | Noncovered loans | Other states	'
Concentrations of credit risk	'
Percent of total loans outstanding (as a percent)	17.00%
Total loans outstanding | Covered loans | California	'
Concentrations of credit risk	'
Percent of total loans outstanding (as a percent)	32.00%
Total loans outstanding | Covered loans | Texas	'
Concentrations of credit risk	'
Percent of total loans outstanding (as a percent)	12.00%
Total loans outstanding | Covered loans | Nevada	'
Concentrations of credit risk	'
Percent of total loans outstanding (as a percent)	7.00%
Total loans outstanding | Covered loans | Arizona	'
Concentrations of credit risk	'
Percent of total loans outstanding (as a percent)	6.00%
Total loans outstanding | Covered loans | Ohio	'
Concentrations of credit risk	'
Percent of total loans outstanding (as a percent)	6.00%
Total loans outstanding | Covered loans | Other states	'
Concentrations of credit risk	'
Percent of total loans outstanding (as a percent)	37.00%

Loans_Allowance_for_Loan_and_L4

Loans, Allowance for Loan and Lease Losses, and Reserve for Off-Balance Sheet Credit Commitments (Details 3) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Changes in Accretable Yield for Acquired Impaired Loans	'	'	'
Balance at the beginning of the period	$219,018	$295,813	'
Accretion	-36,067	-49,395	'
Reclassifications from nonaccretable difference	25,636	26,990	'
Disposals and other	-28,628	-40,959	'
Balance at the end of the period	179,959	232,449	'
Acquired loans	'	'	'
FDIC indemnification asset	$59,917	'	$89,227
Charge off of consumer loans, delinquency period for overdrafts, low end of range	'60 days	'	'
Charge off of consumer loans, delinquency period for secured consumer loans	'180 days	'	'

Loans_Allowance_for_Loan_and_L5

Loans, Allowance for Loan and Lease Losses, and Reserve for Off-Balance Sheet Credit Commitments (Details 4) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Allowance for Loan and Lease Losses	'	'	'	'	'
Beginning Balance	$311,276	$289,914	$302,584	$277,888	'
Charge-offs	-3,849	-2,001	-19,510	-7,110	'
Recoveries	14,399	8,783	30,595	26,205	'
Net (charge-offs) recoveries	10,550	6,782	11,085	19,095	'
(Reversal of) provision for credit losses	-8,000	'	-9,000	'	'
Transfers from reserve for off-balance sheet credit commitments	-1,123	-749	8,034	-1,036	'
Ending Balance	312,703	295,947	312,703	295,947	'
Allowance individually evaluated for impairment	1,595	1,178	1,595	1,178	'
Allowance collectively evaluated for impairment	311,108	294,769	311,108	294,769	'
Loans and leases, excluding covered loans	19,347,988	16,566,133	19,347,988	16,566,133	17,170,438
Loans and leases, individually evaluated for impairment	58,575	110,580	58,575	110,580	'
Loans and leases, collectively evaluated for impairment	19,289,413	16,455,553	19,289,413	16,455,553	'
Provision for credit losses in the allowance	'	'	0	0	'
Reserve for Off Balance Sheet Credit Commitments	'	'	'	'	'
Balance, beginning of the year	24,787	25,124	33,944	24,837	'
Transfers from (to) allowance for loan and lease losses	1,123	749	-8,034	1,036	'
Balance, end of the year	25,910	25,873	25,910	25,873	'
Commercial (includes lease financing)	'	'	'	'	'
Allowance for Loan and Lease Losses	'	'	'	'	'
Beginning Balance	126,279	116,619	117,103	104,731	'
Charge-offs	-3,773	-488	-18,594	-4,719	'
Recoveries	6,202	4,863	15,437	14,122	'
Net (charge-offs) recoveries	2,429	4,375	-3,157	9,403	'
(Reversal of) provision for credit losses	-5,762	-14,173	-353	-7,313	'
Transfers from (to) reserve for off-balance sheet credit commitments	'	'	9,353	'	'
Ending Balance	122,946	106,821	122,946	106,821	'
Allowance individually evaluated for impairment	1,304	344	1,304	344	'
Allowance collectively evaluated for impairment	121,642	106,477	121,642	106,477	'
Loans and leases, excluding covered loans	9,236,294	7,856,244	9,236,294	7,856,244	'
Loans and leases, individually evaluated for impairment	16,316	32,727	16,316	32,727	'
Loans and leases, collectively evaluated for impairment	9,219,978	7,823,517	9,219,978	7,823,517	'
Commercial real estate mortgages	'	'	'	'	'
Allowance for Loan and Lease Losses	'	'	'	'	'
Beginning Balance	50,651	53,339	50,678	48,901	'
Charge-offs	'	-1,270	-5	-1,315	'
Recoveries	225	686	352	1,768	'
Net (charge-offs) recoveries	225	-584	347	453	'
(Reversal of) provision for credit losses	113	-2,829	-36	572	'
Ending Balance	50,989	49,926	50,989	49,926	'
Allowance individually evaluated for impairment	291	602	291	602	'
Allowance collectively evaluated for impairment	50,698	49,324	50,698	49,324	'
Loans and leases, excluding covered loans	3,565,188	3,077,183	3,565,188	3,077,183	3,223,001
Loans and leases, individually evaluated for impairment	25,551	38,546	25,551	38,546	'
Loans and leases, collectively evaluated for impairment	3,539,637	3,038,637	3,539,637	3,038,637	'
Residential mortgages	'	'	'	'	'
Allowance for Loan and Lease Losses	'	'	'	'	'
Beginning Balance	10,296	8,004	11,540	10,558	'
Charge-offs	'	'	-482	-106	'
Recoveries	33	40	258	115	'
Net (charge-offs) recoveries	33	40	-224	9	'
(Reversal of) provision for credit losses	1,138	5,070	151	2,547	'
Ending Balance	11,467	13,114	11,467	13,114	'
Allowance individually evaluated for impairment	'	232	'	232	'
Allowance collectively evaluated for impairment	11,467	12,882	11,467	12,882	'
Loans and leases, excluding covered loans	5,023,213	4,418,231	5,023,213	4,418,231	4,554,311
Loans and leases, individually evaluated for impairment	7,785	6,767	7,785	6,767	'
Loans and leases, collectively evaluated for impairment	5,015,428	4,411,464	5,015,428	4,411,464	'
Real estate construction	'	'	'	'	'
Allowance for Loan and Lease Losses	'	'	'	'	'
Beginning Balance	7,191	8,335	6,351	11,784	'
Charge-offs	'	'	'	-100	'
Recoveries	7,729	2,945	12,804	8,393	'
Net (charge-offs) recoveries	7,729	2,945	12,804	8,293	'
(Reversal of) provision for credit losses	-6,175	-1,589	-10,410	-10,386	'
Ending Balance	8,745	9,691	8,745	9,691	'
Allowance collectively evaluated for impairment	8,745	9,691	8,745	9,691	'
Loans and leases, excluding covered loans	585,232	380,489	585,232	380,489	367,004
Loans and leases, individually evaluated for impairment	6,610	30,190	6,610	30,190	'
Loans and leases, collectively evaluated for impairment	578,622	350,299	578,622	350,299	'
Home Equity Loans and Lines of Credit	'	'	'	'	'
Allowance for Loan and Lease Losses	'	'	'	'	'
Beginning Balance	6,575	5,400	6,677	7,283	'
Charge-offs	'	-225	-165	-500	'
Recoveries	52	31	254	569	'
Net (charge-offs) recoveries	52	-194	89	69	'
(Reversal of) provision for credit losses	401	3,092	262	946	'
Ending Balance	7,028	8,298	7,028	8,298	'
Allowance collectively evaluated for impairment	7,028	8,298	7,028	8,298	'
Loans and leases, excluding covered loans	759,258	681,879	759,258	681,879	709,344
Loans and leases, individually evaluated for impairment	2,313	2,350	2,313	2,350	'
Loans and leases, collectively evaluated for impairment	756,945	679,529	756,945	679,529	'
Installment	'	'	'	'	'
Allowance for Loan and Lease Losses	'	'	'	'	'
Beginning Balance	2,284	1,355	1,842	1,858	'
Charge-offs	-76	-18	-264	-370	'
Recoveries	158	218	1,490	1,238	'
Net (charge-offs) recoveries	82	200	1,226	868	'
(Reversal of) provision for credit losses	18	317	-684	-854	'
Ending Balance	2,384	1,872	2,384	1,872	'
Allowance collectively evaluated for impairment	2,384	1,872	2,384	1,872	'
Loans and leases, excluding covered loans	178,803	152,107	178,803	152,107	151,955
Loans and leases, collectively evaluated for impairment	178,803	152,107	178,803	152,107	'
Qualitative	'	'	'	'	'
Allowance for Loan and Lease Losses	'	'	'	'	'
Beginning Balance	108,000	96,862	108,393	92,773	'
(Reversal of) provision for credit losses	2,267	10,112	2,070	14,488	'
Transfers from (to) reserve for off-balance sheet credit commitments	-1,123	-749	-1,319	-1,036	'
Ending Balance	109,144	106,225	109,144	106,225	'
Allowance collectively evaluated for impairment	$109,144	$106,225	$109,144	$106,225	'

Loans_Allowance_for_Loan_and_L6

Loans, Allowance for Loan and Lease Losses, and Reserve for Off-Balance Sheet Credit Commitments (Details 5) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Loans, Allowance for Loan and Lease Losses, and Reserve for Off-Balance Sheet Credit Commitments	'	'	'	'	'
Minimum nonperforming loans to be individually evaluated for impairment	$1,000,000	'	$1,000,000	'	'
Maximum loans to be measured for impairment using historical loss factors	1,000,000	'	1,000,000	'	'
Recorded Investment	'	'	'	'	'
With no related allowance recorded	43,708,000	95,999,000	43,708,000	95,999,000	79,470,000
With an allowance recorded	14,867,000	14,581,000	14,867,000	14,581,000	21,194,000
Total impaired loans	58,575,000	110,580,000	58,575,000	110,580,000	100,664,000
Unpaid Contractual Principal Balance	'	'	'	'	'
With no related allowance recorded	49,654,000	120,346,000	49,654,000	120,346,000	100,767,000
With an allowance recorded	17,691,000	16,666,000	17,691,000	16,666,000	25,607,000
Total impaired loans	67,345,000	137,012,000	67,345,000	137,012,000	126,374,000
Related Allowance	'	'	'	'	'
Total impaired loans	1,595,000	1,178,000	1,595,000	1,178,000	3,025,000
Average Recorded Investment	'	'	'	'	'
With no related allowance recorded	50,899,000	95,042,000	64,807,000	99,915,000	'
With an allowance recorded	23,196,000	19,513,000	22,593,000	22,970,000	'
Total impaired loans	74,095,000	114,555,000	87,400,000	122,885,000	'
Interest Income Recognized	'	'	'	'	'
With no related allowance recorded	343,000	1,617,000	1,387,000	4,116,000	'
With an allowance recorded	73,000	215,000	203,000	1,142,000	'
Total impaired loans	416,000	1,832,000	1,590,000	5,258,000	'
Commercial	'	'	'	'	'
Recorded Investment	'	'	'	'	'
With no related allowance recorded	6,653,000	25,233,000	6,653,000	25,233,000	17,721,000
With an allowance recorded	9,663,000	7,494,000	9,663,000	7,494,000	14,136,000
Total impaired loans	16,316,000	32,727,000	16,316,000	32,727,000	31,857,000
Unpaid Contractual Principal Balance	'	'	'	'	'
With no related allowance recorded	6,684,000	25,488,000	6,684,000	25,488,000	18,041,000
With an allowance recorded	12,134,000	9,168,000	12,134,000	9,168,000	18,156,000
Total impaired loans	18,818,000	34,656,000	18,818,000	34,656,000	36,197,000
Related Allowance	'	'	'	'	'
Total impaired loans	1,304,000	344,000	1,304,000	344,000	1,961,000
Average Recorded Investment	'	'	'	'	'
With no related allowance recorded	6,817,000	26,255,000	10,653,000	22,584,000	'
With an allowance recorded	15,957,000	7,567,000	15,869,000	7,556,000	'
Total impaired loans	22,774,000	33,822,000	26,522,000	30,140,000	'
Interest Income Recognized	'	'	'	'	'
With no related allowance recorded	38,000	593,000	205,000	1,440,000	'
With an allowance recorded	'	156,000	'	513,000	'
Total impaired loans	38,000	749,000	205,000	1,953,000	'
Commercial real estate mortgages	'	'	'	'	'
Recorded Investment	'	'	'	'	'
With no related allowance recorded	20,347,000	33,133,000	20,347,000	33,133,000	32,770,000
With an allowance recorded	5,204,000	5,413,000	5,204,000	5,413,000	5,384,000
Total impaired loans	25,551,000	38,546,000	25,551,000	38,546,000	38,154,000
Unpaid Contractual Principal Balance	'	'	'	'	'
With no related allowance recorded	22,698,000	37,754,000	22,698,000	37,754,000	37,555,000
With an allowance recorded	5,557,000	5,810,000	5,557,000	5,810,000	5,764,000
Total impaired loans	28,255,000	43,564,000	28,255,000	43,564,000	43,319,000
Related Allowance	'	'	'	'	'
Total impaired loans	291,000	602,000	291,000	602,000	586,000
Average Recorded Investment	'	'	'	'	'
With no related allowance recorded	24,290,000	29,977,000	29,478,000	33,060,000	'
With an allowance recorded	5,214,000	10,262,000	5,293,000	11,018,000	'
Total impaired loans	29,504,000	40,239,000	34,771,000	44,078,000	'
Interest Income Recognized	'	'	'	'	'
With no related allowance recorded	219,000	440,000	903,000	1,102,000	'
With an allowance recorded	73,000	45,000	191,000	361,000	'
Total impaired loans	292,000	485,000	1,094,000	1,463,000	'
Residential mortgage	'	'	'	'	'
Recorded Investment	'	'	'	'	'
With no related allowance recorded	7,785,000	5,093,000	7,785,000	5,093,000	7,537,000
With an allowance recorded	'	1,674,000	'	1,674,000	1,674,000
Total impaired loans	7,785,000	6,767,000	7,785,000	6,767,000	9,211,000
Unpaid Contractual Principal Balance	'	'	'	'	'
With no related allowance recorded	8,139,000	5,573,000	8,139,000	5,573,000	8,078,000
With an allowance recorded	'	1,688,000	'	1,688,000	1,687,000
Total impaired loans	8,139,000	7,261,000	8,139,000	7,261,000	9,765,000
Related Allowance	'	'	'	'	'
Total impaired loans	'	232,000	'	232,000	478,000
Average Recorded Investment	'	'	'	'	'
With no related allowance recorded	7,190,000	5,689,000	7,456,000	6,922,000	'
With an allowance recorded	2,000,000	1,684,000	1,419,000	958,000	'
Total impaired loans	9,190,000	7,373,000	8,875,000	7,880,000	'
Interest Income Recognized	'	'	'	'	'
With no related allowance recorded	50,000	80,000	98,000	191,000	'
With an allowance recorded	'	14,000	11,000	55,000	'
Total impaired loans	50,000	94,000	109,000	246,000	'
Fixed	'	'	'	'	'
Recorded Investment	'	'	'	'	'
With no related allowance recorded	2,015,000	2,031,000	2,015,000	2,031,000	2,135,000
Unpaid Contractual Principal Balance	'	'	'	'	'
With no related allowance recorded	2,254,000	2,155,000	2,254,000	2,155,000	2,295,000
Average Recorded Investment	'	'	'	'	'
With no related allowance recorded	3,406,000	2,019,000	3,459,000	2,860,000	'
With an allowance recorded	'	'	'	116,000	'
Interest Income Recognized	'	'	'	'	'
With no related allowance recorded	10,000	33,000	30,000	75,000	'
Variable	'	'	'	'	'
Recorded Investment	'	'	'	'	'
With no related allowance recorded	5,770,000	3,062,000	5,770,000	3,062,000	5,402,000
With an allowance recorded	'	1,674,000	'	1,674,000	1,674,000
Unpaid Contractual Principal Balance	'	'	'	'	'
With no related allowance recorded	5,885,000	3,418,000	5,885,000	3,418,000	5,783,000
With an allowance recorded	'	1,688,000	'	1,688,000	1,687,000
Related Allowance	'	'	'	'	'
Total impaired loans	'	'	'	'	478,000
Average Recorded Investment	'	'	'	'	'
With no related allowance recorded	3,784,000	3,670,000	3,997,000	4,062,000	'
With an allowance recorded	2,000,000	1,684,000	1,419,000	842,000	'
Interest Income Recognized	'	'	'	'	'
With no related allowance recorded	40,000	47,000	68,000	116,000	'
With an allowance recorded	'	14,000	11,000	55,000	'
Real estate construction	'	'	'	'	'
Recorded Investment	'	'	'	'	'
With no related allowance recorded	6,610,000	30,190,000	6,610,000	30,190,000	19,097,000
Total impaired loans	6,610,000	30,190,000	6,610,000	30,190,000	19,097,000
Unpaid Contractual Principal Balance	'	'	'	'	'
With no related allowance recorded	8,758,000	48,156,000	8,758,000	48,156,000	33,694,000
Total impaired loans	8,758,000	48,156,000	8,758,000	48,156,000	33,694,000
Average Recorded Investment	'	'	'	'	'
With no related allowance recorded	9,728,000	30,318,000	14,335,000	34,410,000	'
With an allowance recorded	'	'	'	3,213,000	'
Total impaired loans	9,728,000	30,318,000	14,335,000	37,623,000	'
Interest Income Recognized	'	'	'	'	'
With no related allowance recorded	35,000	457,000	180,000	1,302,000	'
With an allowance recorded	'	'	'	213,000	'
Total impaired loans	35,000	457,000	180,000	1,515,000	'
Construction	'	'	'	'	'
Recorded Investment	'	'	'	'	'
With no related allowance recorded	'	16,259,000	'	16,259,000	5,485,000
Unpaid Contractual Principal Balance	'	'	'	'	'
With no related allowance recorded	'	21,064,000	'	21,064,000	6,766,000
Average Recorded Investment	'	'	'	'	'
With no related allowance recorded	'	16,262,000	2,742,000	17,904,000	'
Interest Income Recognized	'	'	'	'	'
With no related allowance recorded	'	233,000	76,000	791,000	'
Land	'	'	'	'	'
Recorded Investment	'	'	'	'	'
With no related allowance recorded	6,610,000	13,931,000	6,610,000	13,931,000	13,612,000
Unpaid Contractual Principal Balance	'	'	'	'	'
With no related allowance recorded	8,758,000	27,092,000	8,758,000	27,092,000	26,928,000
Average Recorded Investment	'	'	'	'	'
With no related allowance recorded	9,728,000	14,056,000	11,593,000	16,506,000	'
With an allowance recorded	'	'	'	3,213,000	'
Interest Income Recognized	'	'	'	'	'
With no related allowance recorded	35,000	224,000	104,000	511,000	'
With an allowance recorded	'	'	'	213,000	'
Home equity loans and lines of credit	'	'	'	'	'
Recorded Investment	'	'	'	'	'
With no related allowance recorded	2,313,000	2,350,000	2,313,000	2,350,000	2,329,000
Total impaired loans	2,313,000	2,350,000	2,313,000	2,350,000	2,329,000
Unpaid Contractual Principal Balance	'	'	'	'	'
With no related allowance recorded	3,375,000	3,375,000	3,375,000	3,375,000	3,375,000
Total impaired loans	3,375,000	3,375,000	3,375,000	3,375,000	3,375,000
Average Recorded Investment	'	'	'	'	'
With no related allowance recorded	2,874,000	2,803,000	2,881,000	2,827,000	'
With an allowance recorded	'	'	'	225,000	'
Total impaired loans	2,874,000	2,803,000	2,881,000	3,052,000	'
Interest Income Recognized	'	'	'	'	'
With no related allowance recorded	'	47,000	'	81,000	'
Total impaired loans	'	47,000	'	81,000	'
Installment	'	'	'	'	'
Recorded Investment	'	'	'	'	'
With no related allowance recorded	'	'	'	'	16,000
Total impaired loans	'	'	'	'	16,000
Unpaid Contractual Principal Balance	'	'	'	'	'
With no related allowance recorded	'	'	'	'	24,000
Total impaired loans	'	'	'	'	24,000
Average Recorded Investment	'	'	'	'	'
With no related allowance recorded	'	'	4,000	112,000	'
With an allowance recorded	25,000	'	12,000	'	'
Total impaired loans	25,000	'	16,000	112,000	'
Interest Income Recognized	'	'	'	'	'
With no related allowance recorded	1,000	'	1,000	'	'
With an allowance recorded	'	'	1,000	'	'
Total impaired loans	1,000	'	2,000	'	'
Consumer	'	'	'	'	'
Recorded Investment	'	'	'	'	'
With no related allowance recorded	'	'	'	'	16,000
Unpaid Contractual Principal Balance	'	'	'	'	'
With no related allowance recorded	'	'	'	'	24,000
Average Recorded Investment	'	'	'	'	'
With no related allowance recorded	'	'	4,000	112,000	'
With an allowance recorded	25,000	'	12,000	'	'
Interest Income Recognized	'	'	'	'	'
With no related allowance recorded	1,000	'	1,000	'	'
With an allowance recorded	'	'	$1,000	'	'

Loans_Allowance_for_Loan_and_L7

Loans, Allowance for Loan and Lease Losses, and Reserve for Off-Balance Sheet Credit Commitments (Details 6) (USD $)

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2014

Total Troubled Debt Restructured Loans

Total Troubled Debt Restructured Loans

Total Troubled Debt Restructured Loans

Commercial

Commercial

Commercial

Commercial real estate mortgages

Home equity loans and lines of credit

Variable

Consumer

item

item

item

item

item

item

item

item

item

item

Financing Receivable, Impaired

'

'

'

'

'

'

'

'

'

'

'

'

Impaired loans on accrual status

$32,000,000

$42,100,000

'

'

'

'

'

'

'

'

'

'

TDR loans

35,900,000

52,200,000

'

'

'

'

'

'

'

'

'

'

Specific Reserves

900,000

800,000

'

'

'

'

'

'

'

'

'

'

Number of Contracts

'

'

2

5

14

2

2

12

1

1

2

1

Pre-Modification Outstanding Principal

'

'

7,575,000

8,824,000

17,150,000

7,575,000

4,098,000

16,258,000

547,000

345,000

4,676,000

50,000

Period-End Outstanding Principal

'

'

7,486,000

8,446,000

14,157,000

7,486,000

3,799,000

13,624,000

533,000

'

4,647,000

'

Financial Effects

'

'

$344,000

$55,000

$344,000

$344,000

'

$344,000

'

'

$5,000

$50,000

Loans_Allowance_for_Loan_and_L8

Loans, Allowance for Loan and Lease Losses, and Reserve for Off-Balance Sheet Credit Commitments (Details 7) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2013	Sep. 30, 2013	Sep. 30, 2013
				Total Troubled Debt Restructured Loans That Subsequently Defaulted	Commercial	Land	Home equity loans and lines of credit
				item	item	item	item
Troubled debt restructured loans	'	'	'	'	'	'	'
Number of contracts	'	'	'	6	4	1	1
Period-End Outstanding Principal	'	'	'	$8,279,000	$896,000	$7,244,000	$139,000
Decrease to TDR loans	'	'	25,900,000	'	'	'	'
Removal of TDR loans that are nonreportable as TDR	'	'	500,000	'	'	'	'
Additions to TDR loans	'	'	8,800,000	'	'	'	'
Advances on existing TDR loans	'	'	1,500,000	'	'	'	'
Amount of defaulted TDR loans	0	0	0	'	'	'	'
Commitments to lend additional funds on restructured loans	$200,000	'	$200,000	'	'	'	'

Loans_Allowance_for_Loan_and_L9

Loans, Allowance for Loan and Lease Losses, and Reserve for Off-Balance Sheet Credit Commitments (Details 8) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
In Thousands, unless otherwise specified
Past Due Loans and Leases	'	'	'
30-59 Days Past Due	$4,725	$8,191	'
60-89 Days Past Due	14,431	2,925	'
Greater Than 90 Days and Accruing	6,824	453	'
Nonaccrual	35,919	68,651	'
Total Past Due and Nonaccrual Loans	61,899	80,220	'
Current	19,286,089	17,090,218	'
Total Loans and Leases	19,347,988	17,170,438	16,566,133
Commercial	'	'	'
Past Due Loans and Leases	'	'	'
30-59 Days Past Due	4,017	6,582	'
60-89 Days Past Due	2,971	362	'
Nonaccrual	14,578	14,248	'
Total Past Due and Nonaccrual Loans	21,566	21,192	'
Current	8,591,125	7,541,108	'
Total Loans and Leases	8,612,691	7,562,300	'
Commercial | Loans previously reported as lease financing	'	'	'
Past Due Loans and Leases	'	'	'
Total Loans and Leases	'	158,200	'
Commercial real estate mortgages	'	'	'
Past Due Loans and Leases	'	'	'
30-59 Days Past Due	265	1,197	'
60-89 Days Past Due	501	1,633	'
Nonaccrual	3,691	18,449	'
Total Past Due and Nonaccrual Loans	4,457	21,279	'
Current	3,560,731	3,201,722	'
Total Loans and Leases	3,565,188	3,223,001	3,077,183
Residential mortgages	'	'	'
Past Due Loans and Leases	'	'	'
60-89 Days Past Due	8,884	'	'
Greater Than 90 Days and Accruing	6,145	379	'
Nonaccrual	6,168	11,661	'
Total Past Due and Nonaccrual Loans	21,197	12,040	'
Current	5,002,016	4,542,271	'
Total Loans and Leases	5,023,213	4,554,311	4,418,231
Fixed	'	'	'
Past Due Loans and Leases	'	'	'
60-89 Days Past Due	3,625	'	'
Greater Than 90 Days and Accruing	6,145	379	'
Nonaccrual	3,911	3,789	'
Total Past Due and Nonaccrual Loans	13,681	4,168	'
Current	1,410,232	1,436,283	'
Total Loans and Leases	1,423,913	1,440,451	'
Variable	'	'	'
Past Due Loans and Leases	'	'	'
60-89 Days Past Due	5,259	'	'
Nonaccrual	2,257	7,872	'
Total Past Due and Nonaccrual Loans	7,516	7,872	'
Current	3,591,784	3,105,988	'
Total Loans and Leases	3,599,300	3,113,860	'
Real estate construction	'	'	'
Past Due Loans and Leases	'	'	'
60-89 Days Past Due	'	797	'
Nonaccrual	6,598	19,067	'
Total Past Due and Nonaccrual Loans	6,598	19,864	'
Current	578,634	347,140	'
Total Loans and Leases	585,232	367,004	380,489
Construction	'	'	'
Past Due Loans and Leases	'	'	'
Nonaccrual	'	5,467	'
Total Past Due and Nonaccrual Loans	'	5,467	'
Current	565,507	332,131	'
Total Loans and Leases	565,507	337,598	'
Land	'	'	'
Past Due Loans and Leases	'	'	'
60-89 Days Past Due	'	797	'
Nonaccrual	6,598	13,600	'
Total Past Due and Nonaccrual Loans	6,598	14,397	'
Current	13,127	15,009	'
Total Loans and Leases	19,725	29,406	'
Home equity loans and lines of credit	'	'	'
Past Due Loans and Leases	'	'	'
30-59 Days Past Due	100	'	'
60-89 Days Past Due	1,972	'	'
Greater Than 90 Days and Accruing	387	74	'
Nonaccrual	4,776	5,144	'
Total Past Due and Nonaccrual Loans	7,235	5,218	'
Current	752,023	704,126	'
Total Loans and Leases	759,258	709,344	681,879
Installment	'	'	'
Past Due Loans and Leases	'	'	'
30-59 Days Past Due	280	11	'
60-89 Days Past Due	85	7	'
Greater Than 90 Days and Accruing	292	'	'
Nonaccrual	42	32	'
Total Past Due and Nonaccrual Loans	699	50	'
Current	178,104	151,905	'
Total Loans and Leases	178,803	151,955	152,107
Commercial Installment loan	'	'	'
Past Due Loans and Leases	'	'	'
30-59 Days Past Due	'	1	'
Total Past Due and Nonaccrual Loans	'	1	'
Current	303	361	'
Total Loans and Leases	303	362	'
Consumer Installment loan	'	'	'
Past Due Loans and Leases	'	'	'
30-59 Days Past Due	280	10	'
60-89 Days Past Due	85	7	'
Greater Than 90 Days and Accruing	292	'	'
Nonaccrual	42	32	'
Total Past Due and Nonaccrual Loans	699	49	'
Current	177,801	151,544	'
Total Loans and Leases	178,500	151,593	'
Lease financing	'	'	'
Past Due Loans and Leases	'	'	'
30-59 Days Past Due	63	401	'
60-89 Days Past Due	18	126	'
Nonaccrual	66	50	'
Total Past Due and Nonaccrual Loans	147	577	'
Current	623,456	601,946	'
Total Loans and Leases	623,603	602,523	'
Lease financing | Loans previously reported as lease financing	'	'	'
Past Due Loans and Leases	'	'	'
Total Loans and Leases	'	($158,200)	'

Recovered_Sheet1

Loans, Allowance for Loan and Lease Losses, and Reserve for Off-Balance Sheet Credit Commitments (Details 9) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Financing Receivable, Recorded Investment	'	'	'	'	'
Loans and leases, excluding covered loans	$19,347,988,000	$16,566,133,000	$19,347,988,000	$16,566,133,000	$17,170,438,000
Covered Loans Allowance	'	'	'	'	'
Balance, beginning of period	9,103,000	24,414,000	15,922,000	44,781,000	'
Provision for losses	589,000	2,496,000	3,783,000	461,000	'
Reduction in allowance due to loan removals	-324,000	-1,028,000	-10,337,000	-19,360,000	'
Balance, end of period	9,368,000	25,882,000	9,368,000	25,882,000	'
Covered loans	'	'	'	'	'
Covered Loans Allowance	'	'	'	'	'
Loans on nonaccrual status	0	'	0	'	0
Covered loans 30 to 89 days delinquent	2,500,000	'	2,500,000	'	15,500,000
Loans 90 days or more past due on accrual status	38,500,000	'	38,500,000	'	45,700,000
Commercial	'	'	'	'	'
Financing Receivable, Recorded Investment	'	'	'	'	'
Loans and leases, excluding covered loans	8,612,691,000	'	8,612,691,000	'	7,562,300,000
Commercial | Loans previously reported as lease financing	'	'	'	'	'
Financing Receivable, Recorded Investment	'	'	'	'	'
Loans and leases, excluding covered loans	'	'	'	'	158,200,000
Commercial real estate mortgages	'	'	'	'	'
Financing Receivable, Recorded Investment	'	'	'	'	'
Loans and leases, excluding covered loans	3,565,188,000	3,077,183,000	3,565,188,000	3,077,183,000	3,223,001,000
Residential mortgages	'	'	'	'	'
Financing Receivable, Recorded Investment	'	'	'	'	'
Loans and leases, excluding covered loans	5,023,213,000	4,418,231,000	5,023,213,000	4,418,231,000	4,554,311,000
Fixed	'	'	'	'	'
Financing Receivable, Recorded Investment	'	'	'	'	'
Loans and leases, excluding covered loans	1,423,913,000	'	1,423,913,000	'	1,440,451,000
Variable	'	'	'	'	'
Financing Receivable, Recorded Investment	'	'	'	'	'
Loans and leases, excluding covered loans	3,599,300,000	'	3,599,300,000	'	3,113,860,000
Real estate construction	'	'	'	'	'
Financing Receivable, Recorded Investment	'	'	'	'	'
Loans and leases, excluding covered loans	585,232,000	380,489,000	585,232,000	380,489,000	367,004,000
Construction	'	'	'	'	'
Financing Receivable, Recorded Investment	'	'	'	'	'
Loans and leases, excluding covered loans	565,507,000	'	565,507,000	'	337,598,000
Land	'	'	'	'	'
Financing Receivable, Recorded Investment	'	'	'	'	'
Loans and leases, excluding covered loans	19,725,000	'	19,725,000	'	29,406,000
Home equity loans and lines of credit	'	'	'	'	'
Financing Receivable, Recorded Investment	'	'	'	'	'
Loans and leases, excluding covered loans	759,258,000	681,879,000	759,258,000	681,879,000	709,344,000
Installment	'	'	'	'	'
Financing Receivable, Recorded Investment	'	'	'	'	'
Loans and leases, excluding covered loans	178,803,000	152,107,000	178,803,000	152,107,000	151,955,000
Commercial Installment loan	'	'	'	'	'
Financing Receivable, Recorded Investment	'	'	'	'	'
Loans and leases, excluding covered loans	303,000	'	303,000	'	362,000
Consumer Installment loan	'	'	'	'	'
Financing Receivable, Recorded Investment	'	'	'	'	'
Loans and leases, excluding covered loans	178,500,000	'	178,500,000	'	151,593,000
Lease financing	'	'	'	'	'
Financing Receivable, Recorded Investment	'	'	'	'	'
Loans and leases, excluding covered loans	623,603,000	'	623,603,000	'	602,523,000
Lease financing | Loans previously reported as lease financing	'	'	'	'	'
Financing Receivable, Recorded Investment	'	'	'	'	'
Loans and leases, excluding covered loans	'	'	'	'	-158,200,000
Nonclassified	'	'	'	'	'
Financing Receivable, Recorded Investment	'	'	'	'	'
Loans and leases, excluding covered loans	19,126,277,000	'	19,126,277,000	'	16,854,953,000
Nonclassified | Commercial	'	'	'	'	'
Financing Receivable, Recorded Investment	'	'	'	'	'
Loans and leases, excluding covered loans	8,533,130,000	'	8,533,130,000	'	7,416,487,000
Nonclassified | Commercial real estate mortgages	'	'	'	'	'
Financing Receivable, Recorded Investment	'	'	'	'	'
Loans and leases, excluding covered loans	3,524,848,000	'	3,524,848,000	'	3,139,707,000
Nonclassified | Residential mortgages	'	'	'	'	'
Financing Receivable, Recorded Investment	'	'	'	'	'
Loans and leases, excluding covered loans	4,964,213,000	'	4,964,213,000	'	4,512,723,000
Nonclassified | Fixed	'	'	'	'	'
Financing Receivable, Recorded Investment	'	'	'	'	'
Loans and leases, excluding covered loans	1,396,708,000	'	1,396,708,000	'	1,425,087,000
Nonclassified | Variable	'	'	'	'	'
Financing Receivable, Recorded Investment	'	'	'	'	'
Loans and leases, excluding covered loans	3,567,505,000	'	3,567,505,000	'	3,087,636,000
Nonclassified | Real estate construction	'	'	'	'	'
Financing Receivable, Recorded Investment	'	'	'	'	'
Loans and leases, excluding covered loans	578,634,000	'	578,634,000	'	347,653,000
Nonclassified | Construction	'	'	'	'	'
Financing Receivable, Recorded Investment	'	'	'	'	'
Loans and leases, excluding covered loans	565,507,000	'	565,507,000	'	332,131,000
Nonclassified | Land	'	'	'	'	'
Financing Receivable, Recorded Investment	'	'	'	'	'
Loans and leases, excluding covered loans	13,127,000	'	13,127,000	'	15,522,000
Nonclassified | Home equity loans and lines of credit	'	'	'	'	'
Financing Receivable, Recorded Investment	'	'	'	'	'
Loans and leases, excluding covered loans	728,078,000	'	728,078,000	'	687,732,000
Nonclassified | Installment	'	'	'	'	'
Financing Receivable, Recorded Investment	'	'	'	'	'
Loans and leases, excluding covered loans	177,710,000	'	177,710,000	'	151,830,000
Nonclassified | Commercial Installment loan	'	'	'	'	'
Financing Receivable, Recorded Investment	'	'	'	'	'
Loans and leases, excluding covered loans	303,000	'	303,000	'	362,000
Nonclassified | Consumer Installment loan	'	'	'	'	'
Financing Receivable, Recorded Investment	'	'	'	'	'
Loans and leases, excluding covered loans	177,407,000	'	177,407,000	'	151,468,000
Nonclassified | Lease financing	'	'	'	'	'
Financing Receivable, Recorded Investment	'	'	'	'	'
Loans and leases, excluding covered loans	619,664,000	'	619,664,000	'	598,821,000
Classified	'	'	'	'	'
Financing Receivable, Recorded Investment	'	'	'	'	'
Loans and leases, excluding covered loans	221,711,000	'	221,711,000	'	315,485,000
Classified | Commercial	'	'	'	'	'
Financing Receivable, Recorded Investment	'	'	'	'	'
Loans and leases, excluding covered loans	79,561,000	'	79,561,000	'	145,813,000
Classified | Commercial real estate mortgages	'	'	'	'	'
Financing Receivable, Recorded Investment	'	'	'	'	'
Loans and leases, excluding covered loans	40,340,000	'	40,340,000	'	83,294,000
Classified | Residential mortgages	'	'	'	'	'
Financing Receivable, Recorded Investment	'	'	'	'	'
Loans and leases, excluding covered loans	59,000,000	'	59,000,000	'	41,588,000
Classified | Fixed	'	'	'	'	'
Financing Receivable, Recorded Investment	'	'	'	'	'
Loans and leases, excluding covered loans	27,205,000	'	27,205,000	'	15,364,000
Classified | Variable	'	'	'	'	'
Financing Receivable, Recorded Investment	'	'	'	'	'
Loans and leases, excluding covered loans	31,795,000	'	31,795,000	'	26,224,000
Classified | Real estate construction	'	'	'	'	'
Financing Receivable, Recorded Investment	'	'	'	'	'
Loans and leases, excluding covered loans	6,598,000	'	6,598,000	'	19,351,000
Classified | Construction	'	'	'	'	'
Financing Receivable, Recorded Investment	'	'	'	'	'
Loans and leases, excluding covered loans	'	'	'	'	5,467,000
Classified | Land	'	'	'	'	'
Financing Receivable, Recorded Investment	'	'	'	'	'
Loans and leases, excluding covered loans	6,598,000	'	6,598,000	'	13,884,000
Classified | Home equity loans and lines of credit	'	'	'	'	'
Financing Receivable, Recorded Investment	'	'	'	'	'
Loans and leases, excluding covered loans	31,180,000	'	31,180,000	'	21,612,000
Classified | Installment	'	'	'	'	'
Financing Receivable, Recorded Investment	'	'	'	'	'
Loans and leases, excluding covered loans	1,093,000	'	1,093,000	'	125,000
Classified | Consumer Installment loan	'	'	'	'	'
Financing Receivable, Recorded Investment	'	'	'	'	'
Loans and leases, excluding covered loans	1,093,000	'	1,093,000	'	125,000
Classified | Lease financing	'	'	'	'	'
Financing Receivable, Recorded Investment	'	'	'	'	'
Loans and leases, excluding covered loans	$3,939,000	'	$3,939,000	'	$3,702,000

Other_Real_Estate_Owned_Detail

Other Real Estate Owned (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
OREO activity	'	'	'	'	'
Balance, beginning of period	$22,213,000	$61,477,000	$38,092,000	$79,303,000	'
Additions	7,233,000	4,008,000	11,364,000	18,637,000	'
Sales	-4,449,000	-15,206,000	-23,357,000	-42,149,000	'
Valuation adjustments	-395,000	-1,556,000	-1,497,000	-7,068,000	'
Balance, end of period	24,602,000	48,723,000	24,602,000	48,723,000	'
OREO Valuation Allowances	9,900,000	'	9,900,000	'	17,400,000
Non-Covered OREO	'	'	'	'	'
OREO activity	'	'	'	'	'
Balance, beginning of period	4,269,000	19,676,000	12,611,000	21,027,000	'
Additions	5,957,000	'	6,068,000	723,000	'
Sales	-83,000	-771,000	-8,523,000	-2,552,000	'
Valuation adjustments	-28,000	'	-41,000	-293,000	'
Balance, end of period	10,115,000	18,905,000	10,115,000	18,905,000	'
Covered OREO	'	'	'	'	'
OREO activity	'	'	'	'	'
Balance, beginning of period	17,944,000	41,801,000	25,481,000	58,276,000	'
Additions	1,276,000	4,008,000	5,296,000	17,914,000	'
Sales	-4,366,000	-14,435,000	-14,834,000	-39,597,000	'
Valuation adjustments	-367,000	-1,556,000	-1,456,000	-6,775,000	'
Balance, end of period	$14,487,000	$29,818,000	$14,487,000	$29,818,000	'
FDIC reimbursement (as a percent)	'	'	80.00%	'	'
Payable to FDIC (as a percent)	'	'	80.00%	'	'

Borrowed_Funds_Details

Borrowed Funds (Details) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Short-term borrowings	'	'
Total short-term borrowings	$4,635	$3,889
Long-term debt	'	'
Long-term debt	631,434	735,968
5.25% Senior Notes Due September 2020 | City National Corporation	'	'
Long-term debt	'	'
Long-term debt	299,521	299,463
Fixed interest rate (as a percent)	5.25%	5.25%
9.00% Subordinated Notes Due July 2019 | City National Bank	'	'
Long-term debt	'	'
Long-term debt	'	50,000
Fixed interest rate (as a percent)	'	9.00%
Interest rate for initial period (as a percent)	9.00%	'
Initial interest rate period	'5 years	'
9.00% Subordinated Notes Due August 2019 | City National Bank	'	'
Long-term debt	'	'
Long-term debt	75,000	75,000
Fixed interest rate (as a percent)	9.00%	9.00%
Fixed and Floating Subordinated Notes due August 2019 | City National Bank	'	'
Long-term debt	'	'
Long-term debt	'	55,000
Interest rate for initial period (as a percent)	9.00%	'
Initial interest rate period	'5 years	'
5.375% Subordinated Notes Due July 2022 | City National Bank	'	'
Long-term debt	'	'
Long-term debt	149,994	149,994
Fixed interest rate (as a percent)	5.38%	5.38%
Floating Rate Securities Due November 2034 | Business Bancorp Capital Trust I	'	'
Long-term debt	'	'
Long-term debt	5,155	5,155
Variable rate basis	'three-month LIBOR	'
Basis spread (as a percent)	1.97%	'
Interest rate as of reporting date (as a percent)	2.20%	'
Nonrecourse debt	'	'
Short-term borrowings	'	'
Current portion of subordinated debt	4,635	3,889
Long-term debt	'	'
Long-term debt	91,941	91,388
Average interest rate (as a percent)	3.85%	'
Other long-term debt	'	'
Long-term debt	'	'
Long-term debt	$9,823	$9,968
Fixed interest rate (as a percent)	5.64%	'

Shareholders_Equity_Details

Shareholders' Equity (Details) (USD $)	0 Months Ended	1 Months Ended			3 Months Ended		9 Months Ended
	Nov. 07, 2013	Sep. 30, 2014	Aug. 31, 2014	Jul. 31, 2014	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Shareholders' Equity	'	'	'	'	'	'	'	'	'
Percentage of dividend on preferred stock	6.75%	'	'	'	'	'	'	'	'
Preferred stock, liquidation preference per share (in dollars per share)	$1,000	'	'	'	'	'	'	'	'
Net unrealized losses on securities available-for-sale	'	($7,600,000)	'	'	($7,600,000)	'	($7,600,000)	'	($15,600,000)
Securities available-for-sale:	'	'	'	'	'	'	'	'	'
Net unrealized losses arising during the period	'	'	'	'	-16,386,000	-23,334,000	21,646,000	-155,089,000	'
Reclassification adjustment for net gains included in net income	'	'	'	'	-7,000	-5,788,000	-7,558,000	-11,460,000	'
Non-credit related impairment loss	'	'	'	'	-243,000	'	-243,000	'	'
Total securities available for sale	'	'	'	'	-16,636,000	-29,122,000	13,845,000	-166,549,000	'
Net change on cash flow hedges	'	'	'	'	'	'	'	-56,000	'
Total other comprehensive income (loss)	'	'	'	'	-16,636,000	-29,122,000	13,845,000	-166,605,000	'
Components and related tax effects of other comprehensive income	'	'	'	'	'	'	'	'	'
Net unrealized gain (losses) arising during the period	'	'	'	'	-6,839,000	-9,761,000	9,060,000	-64,874,000	'
Reclassification adjustment for net gains included in net income, taxes	'	'	'	'	-3,000	-2,421,000	-3,162,000	-4,794,000	'
Non-credit related impairment loss, taxes	'	'	'	'	-102,000	'	-102,000	'	'
Total securities available for sale	'	'	'	'	-6,944,000	-12,182,000	5,796,000	-69,668,000	'
Total other comprehensive income (loss)	'	'	'	'	-6,944,000	-12,182,000	5,796,000	-69,668,000	'
Components and related tax effects of other comprehensive income	'	'	'	'	'	'	'	'	'
Net unrealized gain (losses) arising during the period	'	'	'	'	-9,547,000	-13,573,000	12,586,000	-90,215,000	'
Reclassification adjustment for net gains included in net income	'	'	'	'	-4,000	-3,367,000	-4,396,000	-6,666,000	'
Non-credit related impairment loss	'	'	'	'	-141,000	'	-141,000	'	'
Total securities available for sale	'	'	'	'	-9,692,000	-16,940,000	8,049,000	-96,881,000	'
Net change on cash flow hedges	'	'	'	'	'	'	'	-56,000	'
Total other comprehensive (loss) income	'	'	'	'	-9,692,000	-16,940,000	8,049,000	-96,937,000	'
Common shares repurchased	'	'	'	'	'	'	'	'	'
Total number of Shares (or Units) Purchased	'	3,003	12	2,085	5,100	'	'	'	'
Average Price Paid per Share (or Unit) (in dollars per share)	'	$77.46	$75.88	$74.64	$76.30	'	'	'	'
Depositary shares	'	'	'	'	'	'	'	'	'
Shareholders' Equity	'	'	'	'	'	'	'	'	'
Depositary shares of preferred stock issued	4,000,000	'	'	'	'	'	'	'	'
Interest of each depositary share in a share of preferred stock public offered	0.025	'	'	'	'	'	'	'	'
Depositary shares (in dollars per share)	$25	'	'	'	'	'	'	'	'
Net proceeds from issuance of depositary shares	$97,700,000	'	'	'	'	'	'	'	'
Preferred stock, redemption period	'10 years	'	'	'	'	'	'	'	'
Depositary shares | Maximum	'	'	'	'	'	'	'	'	'
Shareholders' Equity	'	'	'	'	'	'	'	'	'
Preferred stock, alternate redemption period	'90 days	'	'	'	'	'	'	'	'
Depositary shares | LIBOR	'	'	'	'	'	'	'	'	'
Shareholders' Equity	'	'	'	'	'	'	'	'	'
Preferred stock, variable rate basis effective for February 7, 2024	'three-month LIBOR	'	'	'	'	'	'	'	'
Preferred stock, basis spread effective for February 7, 2024 (as a percent)	4.05%	'	'	'	'	'	'	'	'

Earnings_per_Common_Share_Deta

Earnings per Common Share (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Basic EPS:	'	'	'	'
Net income attributable to City National Corporation	$68,651	$63,633	$189,863	$174,897
Less: Dividends on preferred stock	4,093	2,407	12,281	7,219
Net income available to common shareholders	64,558	61,226	177,582	167,678
Less: Earnings allocated to participating securities	632	688	1,808	1,975
Earnings allocated to common shareholders	63,926	60,538	175,774	165,703
Weighted average common shares outstanding	55,031,000	54,274,000	54,893,000	54,039,000
Basic earnings per common share (in dollars per share)	$1.16	$1.12	$3.20	$3.07
Diluted EPS:	'	'	'	'
Earnings allocated to common shareholders	$63,932	$60,543	$175,790	$165,716
Weighted average common shares outstanding	55,031,000	54,274,000	54,893,000	54,039,000
Dilutive effect of equity awards (in shares)	734,000	546,000	723,000	425,000
Weighted average diluted common shares outstanding	55,765,000	54,820,000	55,616,000	54,464,000
Diluted earnings per common share (in dollars per share)	$1.15	$1.10	$3.16	$3.04
Average outstanding stock options	'	'	'	'
Antidilutive securities not included in calculation of diluted EPS:	'	'	'	'
Antidilutive securities not included in calculation of diluted EPS (in shares)	700,000	1,000,000	700,000	1,900,000

ShareBased_Compensation_Detail

Share-Based Compensation (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
	plan		plan
Share-Based Compensation	'	'	'	'
Number of share-based compensation plans	1	'	1	'
Shares available for future grants	2,800,000	'	2,800,000	'
Compensation cost recognized for share-based awards	$5,500,000	$5,700,000	$16,100,000	$16,300,000
Total income tax benefit recognized for share-based compensation arrangements	2,300,000	2,400,000	6,700,000	6,800,000
Cash received from the exercise of stock options	'	'	21,734,000	24,963,000
Actual tax benefit realized for the tax deductions from stock option exercises	'	'	3,200,000	4,200,000
Amended and Restated City National Corporation 2008 Omnibus Plan	'	'	'	'
Share-based compensation	'	'	'	'
Granted (in shares)	'	'	0	'
Stock options	'	'	'	'
Share-based compensation, fair value	'	'	'	'
Weighted-average volatility (as a percent)	27.08%	'	27.35%	28.12%
Dividend yield (as a percent)	1.72%	'	1.79%	2.15%
Expected term	'5 years 5 months 16 days	'	'6 years 22 days	'6 years 1 month 24 days
Risk-free interest rate (as a percent)	1.97%	'	1.99%	1.24%
Weighted-average grant-date fair values of options granted (in dollars per share)	'	'	$17.93	$12.57
Total intrinsic value of options exercised	'	'	$7,700,000	$10,200,000

ShareBased_Compensation_Detail1

Share-Based Compensation (Details 2) (Stock options, USD $)	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Stock options	'	'
Summary of option activity and related information	'	'
Number of Options Outstanding, beginning of the period (in shares)	4,075,000	'
Number of options granted (in shares)	455,000	'
Number of options exercised (in shares)	-390,000	'
Number of options forfeited or expired (in shares)	-51,000	'
Number of Options Outstanding, end of the period (in shares)	4,089,000	'
Weighted Average Exercise Price of Options Outstanding, beginning of the period (in dollars per share)	$55.50	'
Weighted Average Exercise Price of Options Granted (in dollars per share)	$73.65	'
Weighted Average Exercise Price of Options Exercised (in dollars per share)	$55.71	'
Weighted Average Exercise Price of Options Forfeited or expired (in dollars per share)	$58.52	'
Weighted Average Exercise Price of Options Outstanding, end of the period (in dollars per share)	$57.46	'
Outstanding Aggregate Intrinsic Value of in-the-money Options	$74,730,000	'
Weighted Average Remaining Contractual Term Outstanding	'5 years 6 months 11 days	'
Number of Options Exercisable (in shares)	2,801,000	'
Weighted Average Exercise Price of options exercisable (in dollars per share)	$56.11	'
Aggregate Intrinsic Value of in-the-money Options Exercisable	55,037,000	'
Weighted Average Remaining Contractual Term Exercisable	'4 years 2 months 23 days	'
Share-based Compensation Arrangement by Share-based Payment Award, Options Unvested and related information	'	'
Unvested at the beginning of the period (in shares)	1,425,000	'
Granted (in shares)	455,000	'
Vested (in shares)	-551,992	-681,816
Forfeited (in shares)	-40,000	'
Unvested at the end of the period (in shares)	1,288,000	'
Unvested at the beginning of the period (in dollars per share)	$13.64	'
Granted (in dollars per share)	$17.93	$12.57
Vested (in dollars per share)	$14.58	'
Forfeited (in dollars per share)	$13.13	'
Unvested at the end of the period (in dollars per share)	$14.77	'
Total fair value of options vested	8,100,000	8,400,000
Unrecognized compensation cost related to unvested stock options granted	$13,200,000	'
Period of recognition for unrecognized compensation cost related to unvested stock options granted	'2 years 6 months	'

ShareBased_Compensation_Detail2

Share-Based Compensation (Details 3) (USD $)	9 Months Ended
In Millions, except Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Restricted stock	'	'
Summary of changes in restricted stock and related information	'	'
Unvested at the beginning of the period (in shares)	608,000	'
Granted (in shares)	119,000	'
Vested (in shares)	-180,799	-198,268
Forfeited (in shares)	-11,000	'
Unvested at the end of the period (in shares)	535,000	'
Weighted Average Grant Date Fair Value, beginning of the period (in dollars per share)	$53.03	'
Weighted Average Grant Date Fair Value Granted (in dollars per share)	$73.64	$56.01
Weighted Average Grant Date Fair Value Vested (in dollars per share)	$44.43	'
Weighted Average Grant Date Fair Value Forfeited (in dollars per share)	$55.88	'
Weighted Average Grant Date Fair Value, end of the period (in dollars per share)	$60.47	'
Total fair value of awards vested during the period	$8	$9.10
Unrecognized compensation cost	$17	'
Period for recognition of unrecognized compensation cost	'2 years 10 months 24 days	'
Cash-settled restricted stock units	'	'
Summary of changes in restricted stock and related information	'	'
Unvested at the beginning of the period (in shares)	190,000	'
Granted (in shares)	15,000	'
Vested (in shares)	-24,000	'
Forfeited (in shares)	-4,000	'
Unvested at the end of the period (in shares)	177,000	'

Derivative_Instruments_Details

Derivative Instruments (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Millions, unless otherwise specified	item	item
Derivative	'	'
Number of Hedging instruments	0	0
Derivatives not designated as hedging instruments	'	'
Derivative	'	'
Notional Amount	3,947.40	3,499.90
Derivative Assets	44.9	47.9
Derivative Liabilities	44.8	46.3
Derivatives not designated as hedging instruments | Equity Warrants	'	'
Derivative	'	'
Notional Amount	1.8	'
Derivative Assets	0.7	'
Derivatives not designated as hedging instruments | Option contracts	'	'
Derivative	'	'
Notional Amount	2.1	1.9
Derivative Assets	0.3	0.4
Derivatives not designated as hedging instruments | Interest Rate Contracts	'	'
Derivative	'	'
Notional Amount	3,285.90	3,024
Derivative Assets	38.9	43.8
Derivative Liabilities	38.9	42.8
Derivatives not designated as hedging instruments | Interest Rate Contracts | Options purchased | Purchase	'	'
Derivative	'	'
Notional Amount	0.2	1.5
Derivative Assets	0.1	0.6
Derivative Liabilities	0.2	0.6
Derivatives not designated as hedging instruments | Interest Rate Contracts | Options purchased | Sale	'	'
Derivative	'	'
Notional Amount	0.2	1.5
Derivatives not designated as hedging instruments | Interest Rate Swaps	'	'
Derivative	'	'
Notional Amount	2,975.30	2,769.40
Derivative Assets	37.9	42.7
Derivative Liabilities	37.8	41.7
Derivatives not designated as hedging instruments | Interest Rate Caps, Floors and Collars	'	'
Derivative	'	'
Notional Amount	310.2	251.6
Derivative Assets	0.9	0.5
Derivative Liabilities	0.9	0.5
Derivatives not designated as hedging instruments | Spot and forward contracts	'	'
Derivative	'	'
Notional Amount	651.6	461.4
Derivative Assets	4.8	3.5
Derivative Liabilities	5.7	3.3
Derivatives not designated as hedging instruments | Foreign exchange contracts	'	'
Derivative	'	'
Notional Amount	657.6	474
Derivative Assets	5	3.7
Derivative Liabilities	5.9	3.5
Derivatives not designated as hedging instruments | Foreign exchange contracts | Options purchased | Purchase	'	'
Derivative	'	'
Notional Amount	3	6.3
Derivatives not designated as hedging instruments | Foreign exchange contracts | Options purchased | Sale	'	'
Derivative	'	'
Notional Amount	3	6.3
Derivative Assets	0.2	0.2
Derivative Liabilities	0.2	0.2

Derivative_Instruments_Details1

Derivative Instruments (Details 2) (USD $)

9 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

In Millions, unless otherwise specified

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2014

Dec. 31, 2013

Derivatives designated as hedging instruments

Derivatives designated as hedging instruments

Derivatives not designated as hedging instruments

Derivatives not designated as hedging instruments

Derivatives not designated as hedging instruments

Derivatives not designated as hedging instruments

Derivatives not designated as hedging instruments

Derivatives not designated as hedging instruments

Derivatives not designated as hedging instruments

Derivatives not designated as hedging instruments

Derivatives not designated as hedging instruments

Derivatives not designated as hedging instruments

Derivatives not designated as hedging instruments

Derivatives not designated as hedging instruments

Derivatives not designated as hedging instruments

Derivatives not designated as hedging instruments

Derivatives not designated as hedging instruments

Derivatives not designated as hedging instruments

Derivatives designated and not designated as hedging instruments

Derivatives designated and not designated as hedging instruments

Derivatives designated and not designated as hedging instruments

Cash Flow Hedge

Other noninterest income

Interest Rate Contracts

Interest Rate Contracts

Interest Rate Contracts

Option contracts

Option contracts

Option contracts

Option contracts

Foreign Exchange Contracts

Foreign Exchange Contracts

Foreign Exchange Contracts

Foreign Exchange Contracts

Interest Rate Swaps

Interest Rate Swaps

Interest income

Equity Warrants

Other noninterest income

Other noninterest income

Other noninterest income

Other noninterest income

Other noninterest income

Other noninterest income

Other noninterest income

International services income

International services income

International services income

International services income

Derivative instruments gain (loss)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Derivative Instruments, Gain (Loss) Recognized in Income, Net

$1.10

'

$8.80

$6.80

$23.40

$21.60

$0.10

($0.30)

($1)

$0.90

$0.10

($0.10)

$0.10

$0.30

$8.70

$7.20

$24.20

$20.40

'

'

'

Amount of gains reclassified from AOCI to Interest

'

0.1

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Credit Risk Exposure and Collateral

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Aggregate fair value of derivatives with credit-risk-related contingent features, net liability position

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

9

'

'

Collateral delivered on swap agreements in the form of securities, with credit-risk-related contingent features

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

4.1

'

'

Collateral delivered on swap agreements in the form of cash, with credit-risk-related contingent features

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

17.7

'

'

Interest rate swap credit risk exposure

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1

2.4

Collateral received from swap counterparties

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0

0

Collateral delivered on swap agreements, without credit-risk contingent features

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$7.60

'

Balance_Sheet_Offsetting_Detai

Balance Sheet Offsetting (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
Reverse repurchase agreements	'	'
Gross Amount Recognized	$700,462,000	$200,000,000
Gross Amount Offset	-500,156,000	'
Net Amount Presented in the Balance Sheet	200,306,000	200,000,000
Gross Amounts Not Offset in the Balance Sheet, Securities Collateral	-200,000,000	-200,000,000
Net Amount	306,000	'
Repurchase agreements	'	'
Gross Amount Recognized	500,156,000	'
Gross Amount Offset	-500,156,000	'
Derivatives not designated as hedging instruments | Securities swaps	'	'
Financial instruments that are eligible for offset	'	'
Principal amount of collateral swap agreement	500,000,000	'
Financial assets	'	'
Fair Value of Securities Pledged as Collateral	531,000,000	'
Financial liabilities	'	'
Fair Value of Securities Received as Collateral	526,500,000	'
Derivatives not designated as hedging instruments | Master netting arrangements and similar agreements	'	'
Financial assets	'	'
Gross Amount Recognized	10,838,000	18,749,000
Gross Amount Offset	-5,318,000	-13,323,000
Net Amount Presented in the Balance Sheet	5,520,000	5,426,000
Net Amount	5,520,000	5,426,000
Financial liabilities	'	'
Gross Amount Recognized	39,432,000	32,193,000
Gross Amount Offset	-5,318,000	-13,323,000
Net Amount Presented in the Balance Sheet	34,114,000	18,870,000
Gross Amounts Not Offset in the Balance Sheet, Securities Collateral	-11,684,000	-12,376,000
Gross Amounts Not Offset in the Balance Sheet, Cash Collateral	-17,707,000	-7,761,000
Net Amount	4,723,000	-1,267,000
Total financial assets and total financial liabilities | Master netting arrangements and similar agreements	'	'
Financial assets	'	'
Gross Amount Recognized	711,300,000	218,749,000
Gross Amount Offset	-505,474,000	-13,323,000
Net Amount Presented in the Balance Sheet	205,826,000	205,426,000
Gross Amounts Not Offset in the Balance Sheet, Securities Collateral	-200,000,000	-200,000,000
Net Amount	5,826,000	5,426,000
Financial Liabilities	'	'
Gross Amount Recognized	539,588,000	32,193,000
Gross Amount Offset	-505,474,000	-13,323,000
Net Amount Presented in the Balance Sheet	34,114,000	18,870,000
Gross Amounts Not Offset in the Balance Sheet, Securities Collateral	-11,684,000	-12,376,000
Gross Amounts Not Offset in the Balance Sheet, Cash Collateral	-17,707,000	-7,761,000
Net Amount	$4,723,000	($1,267,000)

Income_Taxes_Details

Income Taxes (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Income Taxes	'	'	'	'	'
Income tax expense	$34,404,000	$27,052,000	$90,521,000	$73,735,000	'
Accrued interest and penalties relating to uncertain tax positions	2,700,000	'	2,700,000	'	3,000,000
Interest and penalties expense or benefit relating to uncertain tax positions	'	'	$300,000	$400,000	'

Employee_Benefit_Plans_Details

Employee Benefit Plans (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Employee Benefit Plans	'	'	'	'
Maximum contribution by employee (as a percent)	'	'	50.00%	'
Percentage of employer contribution of first 6 percent of covered compensation	'	'	50.00%	'
Maximum employee contribution matched by employer as a percentage of covered compensation	'	'	6.00%	'
Profit sharing and matching contribution expense	$6.10	$5.50	$16.80	$15.50
Percentage of incentive compensation	100.00%	'	100.00%	'
Net deferred compensation expense	$0.10	$0.20	$0.60	$0.70

Contingencies_Details

Contingencies (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Commitments and Contingencies	'	'
Maximum liability under indemnity in connection with liquidation of an investment acquired	$23	'
Letters of Credit	'	'
Commitments and Contingencies	'	'
Commitments	683.4	733.5
Standby letters of credit, included within letters of credit	'	'
Commitments and Contingencies	'	'
Commitments	577.9	617.3
Commercial letters of credit, including within letters of credit	'	'
Commitments and Contingencies	'	'
Commitments	$105.50	$116.20

Variable_Interest_Entities_Det

Variable Interest Entities (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
Variable Interest Entities	'	'
Affordable housing investments	$203,208,000	$188,207,000
Affordable Housing VIEs - not primary beneficiary	'	'
Variable Interest Entities	'	'
Affordable housing investments	203,200,000	188,200,000
Unfunded commitments for affordable housing investments	74,300,000	'
Number of significant variable interest in affordable housing partnerships (in entities)	4	'
Maximum exposure to loss	700,000	'
Unfunded commitments for affordable housing investments with significant variable interest	0	'
Aggregate carrying value of private equity and alternative investment funds	$29,000,000	$34,000,000

Noncontrolling_Interest_Detail

Noncontrolling Interest (Details) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
	item
Redeemable Noncontrolling Interest	'	'
Number of firms in which entity holds majority ownership interest	4	'
Fair value of noncontrolling owners equity interests	$47,222	'
Redeemable noncontrolling interest	'	'
Balance, beginning of period	39,768	'
Net income	2,056	1,657
Balance, end of period	47,222	'
Redeemable Noncontrolling Interest	'	'
Redeemable Noncontrolling Interest	'	'
Number of firms in which entity holds majority ownership interest	4	'
Fair value of noncontrolling owners equity interests	47,222	39,840
Redeemable noncontrolling interest	'	'
Balance, beginning of period	39,768	41,112
Net income	2,056	1,657
Distributions to redeemable noncontrolling interest	-2,366	-1,285
Additions and redemptions, net	-403	-1,625
Adjustments to fair value	8,167	-19
Balance, end of period	$47,222	$39,840

Segment_Results_Details

Segment Results (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
			item
Segment Results	'	'	'	'
Number of reportable segments	'	'	3	'
Earnings Summary:	'	'	'	'
Net interest income	$215,776	$214,271	$634,676	$618,263
(Reversal of) provision for credit losses on loans and leases, excluding covered loans	-8,000	'	-9,000	'
Provision for losses on covered loans	589	2,496	3,783	461
Noninterest income	107,917	88,883	310,264	264,620
Depreciation and amortization	9,702	9,759	28,356	30,043
Noninterest expense	217,500	199,605	639,361	602,090
Income before income taxes	103,902	91,294	282,440	250,289
Provision for income taxes	34,404	27,052	90,521	73,735
Net income	69,498	64,242	191,919	176,554
Less: Net income attributable to noncontrolling interest	847	609	2,056	1,657
Net income attributable to City National Corporation	68,651	63,633	189,863	174,897
Selected Average Balances:	'	'	'	'
Loans and leases, excluding covered loans	18,837,760	16,039,753	18,050,616	15,432,239
Covered loans	580,200	818,928	639,592	905,411
Total assets	30,910,614	28,061,134	30,110,744	27,747,914
Deposits	26,830,633	24,301,647	26,043,449	23,284,065
Goodwill	642,255	642,622	642,498	642,622
Customer-relationship intangibles, net	37,024	43,469	38,505	45,371
Other segment	'	'	'	'
Earnings Summary:	'	'	'	'
Net interest income	10,359	18,917	30,253	53,328
Noninterest income	-15,448	-7,254	-35,810	-26,259
Depreciation and amortization	5,119	4,618	14,665	13,884
Noninterest expense	-21,858	-18,598	-61,939	-54,093
Income before income taxes	11,650	25,643	41,717	67,278
Provision for income taxes	3,889	7,650	13,468	19,952
Net income	7,761	17,993	28,249	47,326
Net income attributable to City National Corporation	7,761	17,993	28,249	47,326
Selected Average Balances:	'	'	'	'
Loans and leases, excluding covered loans	60,002	50,572	57,583	53,303
Total assets	10,689,909	10,404,910	10,600,175	10,597,656
Deposits	277,930	408,512	254,929	487,093
Commercial and Private Banking	'	'	'	'
Earnings Summary:	'	'	'	'
Net interest income	204,965	195,112	603,170	564,132
(Reversal of) provision for credit losses on loans and leases, excluding covered loans	-8,000	'	-9,000	'
Provision for losses on covered loans	589	2,496	3,783	461
Noninterest income	53,391	38,602	142,536	119,418
Depreciation and amortization	2,786	3,263	8,381	10,505
Noninterest expense	181,632	169,862	533,442	511,703
Income before income taxes	81,349	58,093	209,100	160,881
Provision for income taxes	27,158	17,329	67,507	47,712
Net income	54,191	40,764	141,593	113,169
Net income attributable to City National Corporation	54,191	40,764	141,593	113,169
Selected Average Balances:	'	'	'	'
Loans and leases, excluding covered loans	18,777,758	15,989,181	17,993,033	15,378,936
Covered loans	580,200	818,928	639,592	905,411
Total assets	19,482,692	17,011,547	18,814,042	16,502,985
Deposits	26,481,108	23,817,083	25,710,863	22,696,050
Goodwill	393,176	393,176	393,176	393,176
Customer-relationship intangibles, net	2,335	4,445	2,717	5,174
Wealth Management	'	'	'	'
Earnings Summary:	'	'	'	'
Net interest income	452	242	1,253	803
Noninterest income	69,974	57,535	203,538	171,461
Depreciation and amortization	1,797	1,878	5,310	5,654
Noninterest expense	57,726	48,341	167,858	144,480
Income before income taxes	10,903	7,558	31,623	22,130
Provision for income taxes	3,357	2,073	9,546	6,071
Net income	7,546	5,485	22,077	16,059
Less: Net income attributable to noncontrolling interest	847	609	2,056	1,657
Net income attributable to City National Corporation	6,699	4,876	20,021	14,402
Selected Average Balances:	'	'	'	'
Total assets	738,013	644,677	696,527	647,273
Deposits	71,595	76,052	77,657	100,922
Goodwill	249,079	249,446	249,322	249,446
Customer-relationship intangibles, net	$34,689	$39,024	$35,788	$40,197

Sale_of_Business_Details

Sale of Business (Details) (OneAmerica, USD $)	0 Months Ended
	Sep. 02, 2014
OneAmerica	'
Sale of business	'
Gain on sale of asset	$1,400,000
Assets under administration	$6,960,000,000