Zions Bancorporation, National Association (ZION) 10-Q 6 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 [Abstract]	'	'
Document Type	'10-Q	'
Amendment Flag	'false	'
Document Period End Date	30-Sep-14	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q3	'
Trading Symbol	'zion	'
Entity Registrant Name	'ZIONS BANCORPORATION /UT/	'
Entity Central Index Key	'0000109380	'
Current Fiscal Year End Date	'--12-31	'
Entity Filer Category	'Large Accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	202,932,251

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
ASSETS	'	'
Cash and due from banks	$588,691	$1,175,083
Money market investments:	'	'
Interest-bearing deposits	7,464,865	8,175,048
Federal funds sold and security resell agreements	355,844	282,248
Investment securities:	'	'
Held-to-maturity, at adjusted cost (approximate fair value $642,529 and $609,547)	609,758	588,981
Available-for-sale, at fair value	3,563,408	3,701,886
Trading account, at fair value	55,419	34,559
Marketable securities, total	4,228,585	4,325,426
Loans held for sale	109,139	171,328
Loans and leases, net of unearned income and fees:	'	'
Loans and leases receivable, net of unearned income and fees	39,739,795	39,043,365
Less allowance for loan losses	610,277	746,291
Loans, net of allowance	39,129,518	38,297,074
Other noninterest-bearing investments	855,743	855,642
Premises and equipment, net	811,127	726,372
Goodwill	1,014,129	1,014,129
Core deposit and other intangibles	28,160	36,444
Other real estate owned	27,418	46,105
Other assets	845,651	926,228
Total assets	55,458,870	56,031,127
LIABILITIES AND SHAREHOLDERS' EQUITY	'	'
Noninterest-bearing demand	19,770,405	18,758,753
Interest-bearing:	'	'
Savings and money market	23,742,911	23,029,928
Time	2,441,756	2,593,038
Foreign	310,264	1,980,161
Total deposits	46,265,336	46,361,880
Federal funds and other short-term borrowings	191,798	340,348
Long-term debt	1,113,677	2,273,575
Reserve for unfunded lending commitments	79,377	89,705
Other liabilities	486,523	501,056
Total liabilities	48,136,711	49,566,564
Shareholders' equity:	'	'
Preferred stock, without par value, authorized 4,400,000 shares	1,004,006	1,003,970
Common stock, without par value; authorized 350,000,000 shares; issued and outstanding 202,898,491 and 184,677,696 shares	4,717,295	4,179,024
Retained earnings	1,711,785	1,473,670
Accumulated other comprehensive income (loss)	-110,927	-192,101
Total shareholders' equity	7,322,159	6,464,563
Total liabilities and shareholders' equity	$55,458,870	$56,031,127

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, except Share data, unless otherwise specified
Statement of Financial Position [Abstract]	'	'
Held-to-maturity, fair value	$642,529	$609,547
Preferred stock, authorized shares	4,400,000	4,400,000
Common stock, authorized shares	350,000,000	350,000,000
Common stock, issued shares	202,898,491	184,677,696
Common stock, outstanding shares	202,898,491	184,677,696

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
Document Fiscal Year Focus	'	'	'2014	'
Interest income:	'	'	'	'
Interest and fees on loans	$430,415	$442,366	$1,298,560	$1,356,107
Interest on money market investments	5,483	6,175	15,501	17,378
Investment Income, Interest	24,377	24,866	76,973	77,903
Interest expense:	'	'	'	'
Interest on deposits	12,313	14,506	37,188	45,291
Interest on short- and long-term borrowings	31,144	43,380	104,280	141,804
Total interest expense	43,457	57,886	141,468	187,095
Net interest income	416,818	415,521	1,249,566	1,264,293
Provision for loan losses	-54,643	-5,573	-109,669	-56,598
Net interest income after provision for loan losses	471,461	421,094	1,359,235	1,320,891
Noninterest income:	'	'	'	'
Service charges and fees on deposit accounts	44,941	44,701	130,408	132,610
Other service charges, commissions and fees	51,005	45,977	142,037	134,596
Wealth management income	7,438	7,120	22,495	21,846
Capital markets and foreign exchange	5,361	7,309	16,203	21,535
Dividends and other investment income	11,324	12,101	27,183	36,164
Loan sales and servicing income	6,793	8,464	19,602	30,138
Fair value and nonhedge derivative income (loss)	44	-4,403	-10,429	-12,805
Equity securities gains, net	440	3,165	3,865	8,206
Fixed income securities gains (losses), net	-13,901	1,580	22,039	3,726
Impairment losses on investment securities:	'	'	'	'
Impairment losses on investment securities	0	-10,470	-27	-46,873
Non-credit losses on secutities not expectd to be sold (recognized in other comprehensive income)	0	1,403	0	23,472
Net impairment losses on investment securities	0	-9,067	-27	-23,401
Other	2,627	5,243	5,865	15,942
Total noninterest income	116,072	122,190	379,241	368,557
Noninterest expense:	'	'	'	'
Salaries and employee benefits	245,520	229,185	717,690	686,302
Occupancy, net	28,495	28,230	85,739	83,570
Furniture, equipment and software	28,524	26,560	84,454	79,179
Other real estate expense	875	-831	2,216	2,736
Credit-related expense	6,475	7,265	20,520	27,144
Provision for unfunded lending commitments	-16,095	-19,935	-10,328	-22,662
Professional and legal services	16,588	16,462	39,754	44,082
Advertising	6,094	6,091	19,295	17,791
FDIC premiums	8,204	9,395	24,143	29,230
Amortization of core deposit and other intangibles	2,665	3,570	8,283	11,151
Debt extinguishment cost	44,422	0	44,422	40,282
Other	66,769	64,671	206,438	220,884
Total noninterest expense	438,536	370,663	1,242,626	1,219,689
Income before income taxes	148,997	172,621	495,850	469,759
Income taxes	53,109	61,107	179,202	164,832
Net income	95,888	111,514	316,648	304,927
Net loss applicable to noncontrolling interests	0	0	0	-336
Net income applicable to controlling interest	95,888	111,514	316,648	305,263
Preferred stock dividends	-16,761	-27,507	-56,841	-77,547
Preferred Stock Redemption	0	125,700	0	125,700
Net earnings applicable to common shareholders	79,127	209,707	259,807	353,416
Weighted average common shares outstanding during the period:	'	'	'	'
Basic shares	196,687	184,112	188,643	183,721
Diluted shares	197,271	184,742	189,260	184,144
Net earnings per common share:	'	'	'	'
Basic	$0.40	$1.13	$1.36	$1.90
Diluted	$0.40	$1.12	$1.36	$1.90
Interest and Dividend Income, Operating	$460,275	$473,407	$1,391,034	$1,451,388

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
Net income	$95,888	$111,514	$316,648	$304,927
Other comprehensive income (loss), net of tax:	'	'	'	'
Unrealized holding gains (losses) on investment securities	18,265	-10,564	100,723	67,646
Noncredit Related Losses On Securities Not Expected To Be Sold	0	-867	0	-13,751
Reclassification to earnings for realized net fixed income securities losses (gains)	7,886	-976	-20,058	-2,301
Reclassification to earnings for net credit-related impairment losses on investment securities	0	5,588	17	14,136
Accretion of securities with noncredit-related impairment losses not expected to be sold	276	285	835	880
Net unrealized holding gains (losses) on derivative instruments	-508	239	1,011	236
Net unrealized gains (losses) on other noninterest-bearing investments	454	-3,595	-333	-3,709
Reclassification adjustment for increase in interest income recognized in earnings on derivatives instruments	-463	-57	-1,021	-1,483
Other comprehensive income (loss)	25,910	-9,947	81,174	61,654
Comprehensive income	121,798	101,567	397,822	366,581
Comprehensive loss applicable to noncontrolling interests	0	0	0	-336
Comprehensive income applicable to controlling interest	$121,798	$101,567	$397,822	$366,917

Consolidated_Statements_Of_Cha

Consolidated Statements Of Changes In Shareholders' Equity (USD $)	Total	Preferred Stock [Member]	Common Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Noncontrolling Interests [Member]
In Thousands, except Share data, unless otherwise specified
Balance at Dec. 31, 2012	$6,048,641	$1,128,302	$4,166,109	$1,203,815	($446,157)	($3,428)
Balance (in shares) at Dec. 31, 2012	'	'	184,199,198	'	'	'
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'	'	'
Net income (loss) for the period	304,927	'	'	305,263	'	-336
Other comprehensive income, net of tax	61,654	'	'	'	61,654	'
Stock Issued During Period, Value, New Issues	784,373	800,000	15,627	'	'	'
Stock Redeemed or Called During Period, Value	-799,468	-925,748	580	125,700	'	'
Subordinated debt converted to preferred stock	1,210	1,416	-206	'	'	'
Net activity under employee plans and related tax benefits, shares	'	'	400,807	'	'	'
Net activity under employee plans and related tax benefits	26,197	'	26,197	'	'	'
Dividends on preferred stock	-77,547	'	'	-77,547	'	'
Dividends on common stock	-16,667	'	'	-16,667	'	'
Change in deferred compensation	-109	'	'	-109	'	'
Other changes in noncontrolling interests	-402	'	-4,166	'	'	3,764
Balance at Sep. 30, 2013	6,332,809	1,003,970	4,172,887	1,540,455	-384,503	0
Balance (in shares) at Sep. 30, 2013	'	'	184,600,005	'	'	'
Balance at Dec. 31, 2013	6,464,563	1,003,970	4,179,024	1,473,670	-192,101	0
Balance (in shares) at Dec. 31, 2013	184,677,696	'	184,677,696	'	'	'
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'	'	'
Net income (loss) for the period	316,648	'	'	316,648	'	'
Other comprehensive income, net of tax	81,174	'	'	'	81,174	'
Stock Issued During Period, Shares, New Issues	'	'	17,617,450	'	'	'
Stock Issued During Period, Value, New Issues	515,856	'	'	'	'	'
Subordinated debt converted to preferred stock	31	36	-5	'	'	'
Net activity under employee plans and related tax benefits, shares	'	'	603,345	'	'	'
Net activity under employee plans and related tax benefits	22,420	'	22,420	'	'	'
Dividends on preferred stock	-56,841	'	'	-56,841	'	'
Dividends on common stock	-23,039	'	'	-23,039	'	'
Change in deferred compensation	1,347	'	'	1,347	'	'
Balance at Sep. 30, 2014	$7,322,159	$1,004,006	$4,717,295	$1,711,785	($110,927)	$0
Balance (in shares) at Sep. 30, 2014	202,898,491	'	202,898,491	'	'	'

Consolidated_Statements_Of_Cha1

Consolidated Statements Of Changes In Shareholders' Equity (Parenthetical) (USD $)	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Dividends on common stock, per share	$0.12	$0.09

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
Document Fiscal Year Focus	'	'	'2014	'
CASH FLOWS FROM OPERATING ACTIVITIES	'	'	'	'
Net income for the period	$95,888	$111,514	$316,648	$304,927
Adjustments to reconcile net income to net cash provided by operating activities:	'	'	'	'
Debt extinguishment costs	44,422	0	44,422	40,282
Net impairment losses on investment securities	0	9,067	27	23,401
Provision for credit losses	-70,738	-25,508	-119,997	-79,260
Depreciation and amortization	33,860	42,667	97,414	102,860
Fixed income securities losses (gains), net	13,901	-1,580	-22,039	-3,726
Deferred income tax expense (benefit)	2,960	5,832	22,368	-612
Net decrease (increase) in trading securities	1,241	-11,876	-20,868	-10,005
Net decrease in loans held for sale	44,162	49,696	46,035	173,142
Change in other liabilities	33,619	28,047	-24,375	-17,463
Change in other assets	4,678	70,753	-8,904	243,428
Other, net	-5,745	-5,606	6,501	-14,174
Net cash provided by operating activities	198,248	273,006	337,232	762,800
CASH FLOWS FROM INVESTING ACTIVITIES	'	'	'	'
Net decrease (increase) in money market investments	-955,821	12,100	636,587	364,623
Proceeds from maturities and paydowns of investment securities held-to-maturity	20,796	14,404	58,921	95,841
Purchases of investment securities held-to-maturity	-14,964	-8,121	-78,228	-128,089
Proceeds from sales, maturities, and paydowns of investment securities available-for-sale	374,973	246,147	1,417,234	864,643
Purchases of investment securities available-for-sale	-451,212	-408,333	-1,125,036	-1,019,454
Loans purchased	-251,325	0	-251,325	0
Net loan and lease collections (originations)	-134,871	107,808	472,459	697,132
Net purchases of premises and equipment	-26,153	-20,905	-138,884	-63,438
Proceeds from sales of other real estate owned	8,200	27,417	37,112	80,076
Net cash received from divestitures	0	3,786	0	3,786
Other, net	12,799	-62	19,796	19,972
Net cash provided by (used in) investing activities	-1,147,836	-241,375	103,718	-479,172
CASH FLOWS FROM FINANCING ACTIVITIES	'	'	'	'
Net increase (decrease) in deposits	594,722	653,311	-96,544	-463,707
Net change in short-term funds borrowed	-66,603	17,159	-148,550	-78,848
Proceeds from issuance of long-term debt	0	116,461	0	484,408
Repayments of long-term debt	-834,964	-153	-1,196,123	-570,167
Debt extinguishment costs paid	-35,435	0	-35,435	-23,305
Cash paid for preferred stock redemption	0	-799,468	0	-799,468
Proceeds from issuances of common and preferred stock	519,559	200,040	524,080	792,557
Dividends paid on common and preferred stock	-23,243	-34,935	-71,191	-94,214
Other, net	112	-2,061	-3,579	-7,709
Net cash provided by (used in) financing activities	154,148	150,354	-1,027,342	-760,453
Net increase (decrease) in cash and due from banks	-795,440	181,985	-586,392	-476,825
Cash and due from banks at beginning of period	1,384,131	1,183,097	1,175,083	1,841,907
Cash and due from banks at end of period	588,691	1,365,082	588,691	1,365,082
Cash paid for interest	41,138	45,134	122,807	149,047
Net cash paid for income taxes	$58,645	$32,453	$181,301	$156,456

Basis_of_Presentaion

Basis of Presentaion	9 Months Ended
	Sep. 30, 2014
Basis Of Presentation [Abstract]	'
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]	'
	BASIS OF PRESENTATION
	The accompanying unaudited consolidated financial statements of Zions Bancorporation (“the Parent”) and its majority-owned subsidiaries (collectively “the Company,” “Zions,” “we,” “our,” “us”) have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. References to GAAP, including standards promulgated by the Financial Accounting Standards Board (“FASB”) are made according to sections of the Accounting Standards Codification (“ASC”) and to Accounting Standards Updates (“ASU”), which include consensus issues of the Emerging Issues Task Force (“EITF”). In certain cases, ASUs are issued jointly with International Financial Reporting Standards (“IFRS”). Certain prior period amounts have been reclassified to conform with the current period presentation.
	Operating results for the three and nine months ended September 30, 2014 and 2013 are not necessarily indicative of the results that may be expected in future periods. The consolidated balance sheet at December 31, 2013 is from the audited financial statements at that date, but does not include all of the information and footnotes required by GAAP for complete financial statements. For further information, refer to the consolidated financial statements and footnotes thereto included in the Company’s 2013 Annual Report on Form 10-K.
	The Company provides a full range of banking and related services through subsidiary banks in 11 Western and Southwestern states as follows: Zions First National Bank (“Zions Bank”), in Utah, Idaho and Wyoming; California Bank & Trust (“CB&T”); Amegy Corporation (“Amegy”) and its subsidiary, Amegy Bank, in Texas; National Bank of Arizona (“NBAZ”); Nevada State Bank (“NSB”); Vectra Bank Colorado (“Vectra”), in Colorado and New Mexico; The Commerce Bank of Washington (“TCBW”); and The Commerce Bank of Oregon (“TCBO”). The Parent and its subsidiary banks also own and operate certain nonbank subsidiaries that engage in financial services.

Certain_Recent_Accounting_Pron

Certain Recent Accounting Pronouncements (Notes)	9 Months Ended
	Sep. 30, 2014
Certain Recent Accounting Pronouncements [Abstract]	'
Certain Recent Accounting Pronouncements [Text Block]	'
	2	CERTAIN RECENT ACCOUNTING PRONOUNCEMENTS
	In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers. The new standard was issued jointly with IFRS and creates a single source of revenue recognition guidance across all companies in all industries. The core principle is that a company will recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services. The banking industry does not expect significant changes because major sources of revenue are from financial instruments that have been excluded from the scope of the new guidance, (including loans, derivatives, debt and equity securities, etc.). However, the new guidance affects other fees charged by banks, such as asset management fees, credit card interchange fees, deposit account fees, etc. For public companies, adoption is required for interim or annual periods beginning after December 15, 2016, with no early adoption permitted. Adoption may be made on a full retrospective basis with practical expedients, or on a modified retrospective basis with a cumulative effect adjustment. Management is currently evaluating the impact this new guidance may have on the Company’s financial statements.
	In January 2014, the FASB issued ASU 2014-04, Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure. This new guidance under ASC 310-40, Receivables – Troubled Debt Restructurings by Creditors, clarifies that a creditor should be considered to have physical possession of a residential real estate property collateralizing a residential mortgage loan and thus would reclassify the loan to other real estate owned when certain conditions are satisfied. The new amendments will require additional financial statement disclosures and may be applied on either a prospective or a modified retrospective basis, with early adoption permitted. For public companies, adoption is required for interim or annual periods beginning after December 15, 2014. Management does not currently believe this new guidance will have a significant effect on the Company’s financial statement disclosures.
	In January 2014, the FASB issued ASU 2014-01, Accounting for Investments in Qualified Affordable Housing Projects. This new accounting guidance under ASC 323, Investments – Equity Method and Joint Ventures, revised the conditions that an entity must meet to elect to use the effective yield method when accounting for qualified affordable housing project investments. The final consensus of the EITF changed the method of amortizing a Low-Income Housing Tax Credit (“LIHTC”) investment from the effective yield method to a proportional amortization method. The amortization would be proportional to the tax credits and tax benefits received but, under a practical expedient that would be available in certain circumstances, amortization could be proportional to only the tax credits. Reporting entities that invest in LIHTC investments through a limited liability entity could elect the proportional amortization method if certain conditions are met. The guidance would not extend to other types of tax credit investments. The final consensus would be applied retrospectively with early adoption and other adjustments permitted. For public companies, adoption is required for interim or annual periods beginning after December 15, 2014. Management does not currently believe this new guidance will have a significant effect on the Company’s financial statements.

Supplemental_Cash_Flow_Informa

Supplemental Cash Flow Information	9 Months Ended
	Sep. 30, 2014
Supplemental Cash Flow Information [Abstract]	'
Cash Flow, Supplemental Disclosures [Text Block]	'
	.	SUPPLEMENTAL CASH FLOW INFORMATION
	Noncash activities are summarized as follows:
	(In thousands)	Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2014			2013			2014			2013
	Loans and leases transferred to other real estate owned	$	8,954		$	12,098		$	20,197		$	52,916
	Loans and leases transferred to (from) loans held for sale	(9,658		)	(113		)	(14,739		)	36,301
	Beneficial conversion feature transferred from common stock to preferred stock as a result of subordinated debt conversions	—			—			5			206
	Subordinated debt converted to preferred stock	—			—			31			1,210
	Preferred stock transferred to common stock as a result of the	—			580			—			580
	Series C preferred stock redemption
	Preferred stock/beneficial conversion feature transferred to retained earnings as a result of the Series C preferred stock redemption	—			125,700			—			125,700

Offsetting_Assets_and_Liabilit

Offsetting Assets and Liabilities (Notes)	9 Months Ended
	Sep. 30, 2014
Offsetting Assets and Liabilities [Abstract]	'
Cash, Cash Equivalents, and Short-term Investments [Text Block]	'
	.	OFFSETTING ASSETS AND LIABILITIES
	Gross and net information for selected financial instruments in the balance sheet is as follows:
			September 30, 2014
	(In thousands)								Gross amounts not offset in the balance sheet
	Description		Gross amounts recognized		Gross amounts offset in the balance sheet		Net amounts presented in the balance sheet		Financial instruments			Cash collateral received/pledged			Net amount
	Assets:
	Federal funds sold and security resell agreements		$	355,844	$	—	$	355,844	$	—		$	—		$	355,844
	Derivatives (included in other assets)		54,720		—		54,720		(5,701		)	250			49,269
			$	410,564	$	—	$	410,564	$	(5,701	)	$	250		$	405,113
	Liabilities:
	Federal funds and other short-term borrowings		$	191,798	$	—	$	191,798	$	—		$	—		$	191,798
	Derivatives (included in other liabilities)		56,036		—		56,036		(5,701		)	(27,362		)	22,973
			$	247,834	$	—	$	247,834	$	(5,701	)	$	(27,362	)	$	214,771
			December 31, 2013
	(In thousands)								Gross amounts not offset in the balance sheet
	Description		Gross amounts recognized		Gross amounts offset in the balance sheet		Net amounts presented in the balance sheet		Financial instruments			Cash collateral received/pledged			Net amount
	Assets:
	Federal funds sold and security resell agreements		$	282,248	$	—	$	282,248	$	—		$	—		$	282,248
	Derivatives (included in other assets)		65,683		—		65,683		(11,650		)	2,210			56,243
			$	347,931	$	—	$	347,931	$	(11,650	)	$	2,210		$	338,491
	Liabilities:
	Federal funds and other short-term borrowings		$	340,348	$	—	$	340,348	$	—		$	—		$	340,348
	Derivatives (included in other liabilities)		68,397		—		68,397		(11,650		)	(26,997		)	29,750
			$	408,745	$	—	$	408,745	$	(11,650	)	$	(26,997	)	$	370,098
	Security resell and repurchase agreements are offset, when applicable, in the balance sheet according to master netting agreements. Security repurchase agreements are included with “Federal funds and other short-term borrowings.” Derivative instruments may be offset under their master netting agreements; however, for accounting purposes, we present these items on a gross basis in the Company’s balance sheet. See Note 7 for further information regarding derivative instruments.

Investment_Securities

Investment Securities	9 Months Ended
	Sep. 30, 2014
Investments [Abstract]	'
Investment Securities	'
	INVESTMENT SECURITIES
	Investment securities are summarized below. Note 10 discusses the process to estimate fair value for investment securities.
		September 30, 2014
					Recognized in OCI 1												Not recognized in OCI
	(In thousands)	Amortized			Gross				Gross				Carrying				Gross			Gross				Estimated
		cost			unrealized				unrealized				value				unrealized			unrealized				fair
					gains				losses								gains			losses				value
	Held-to-maturity
	Municipal securities	$	570,527		$	—			$	—			$	570,527			$	14,096		$	829			$	583,794
	Asset-backed securities:
	Trust preferred securities – banks and insurance	79,302			—				40,171			2	39,131				20,465			961				58,635
	Other debt securities	100			—				—				100				—			—				100
		649,929			—				40,171				609,758				34,561			1,790				642,529
	Available-for-sale
	U.S. Treasury securities	1,530			16				—				1,546											1,546
	U.S. Government agencies and corporations:
	Agency securities	617,844			1,992				7,861				611,975											611,975
	Agency guaranteed mortgage-backed securities	465,516			10,593				596				475,513											475,513
	Small Business Administration loan-backed securities	1,507,510			18,005				6,139				1,519,376											1,519,376
	Municipal securities	187,792			1,300				731				188,361											188,361
	Asset-backed securities:
	Trust preferred securities – banks and insurance	708,716			9,071				129,284				588,503											588,503
	Auction rate securities	5,596			118				—				5,714											5,714
	Other	635			153				—				788											788
		3,495,139			41,248				144,611				3,391,776											3,391,776
	Mutual funds and other	173,863			55				2,286				171,632											171,632
		3,669,002			41,303				146,897				3,563,408											3,563,408
	Total	$	4,318,931		$	41,303			$	187,068			$	4,173,166										$	4,205,937
		December 31, 2013
					Recognized in OCI 1												Not recognized in OCI
	(In thousands)	Amortized			Gross				Gross				Carrying				Gross			Gross				Estimated
		cost			unrealized				unrealized				value				unrealized			unrealized				fair
					gains				losses								gains			losses				value
	Held-to-maturity
	Municipal securities	$	551,055		$	—			$	—			$	551,055			$	11,295		$	4,616			$	557,734
	Asset-backed securities:
	Trust preferred securities – banks and insurance	79,419			—				41,593			2	37,826				15,195			1,308				51,713
	Other debt securities	100			—				—				100				—			—				100
		630,574			—				41,593				588,981				26,490			5,924				609,547
	Available-for-sale
	U.S. Treasury securities	1,442			104				—				1,546											1,546
	U.S. Government agencies and
	corporations:
	Agency securities	517,905			1,920				901				518,924											518,924
	Agency guaranteed mortgage-backed securities	308,687			9,926				1,237				317,376											317,376
	Small Business Administration loan-backed securities	1,202,901			21,129				2,771				1,221,259											1,221,259
	Municipal securities	65,425			1,329				490				66,264											66,264
	Asset-backed securities:
	Trust preferred securities – banks and insurance	1,508,224			13,439				282,843				1,238,820											1,238,820
	Trust preferred securities – real estate investment trusts	22,996			—				—				22,996											22,996
	Auction rate securities	6,507			118				26				6,599											6,599
	Other	27,540			359				—				27,899											27,899
		3,661,627			48,324				288,268				3,421,683											3,421,683
	Mutual funds and other	287,603			21				7,421				280,203											280,203
		3,949,230			48,345				295,689				3,701,886											3,701,886
	Total	$	4,579,804		$	48,345			$	337,282			$	4,290,867										$	4,311,433
	1	Other comprehensive income
	2	The gross unrealized losses recognized in OCI on held-to-maturity (“HTM”) securities resulted from a previous transfer of available-for-sale (“AFS”) securities to HTM, and from OTTI.
	The amortized cost and estimated fair value of investment debt securities are shown subsequently as of September 30, 2014 by expected maturity distribution for collateralized debt obligations (“CDOs”) and by contractual maturity for other debt securities. Actual maturities may differ from expected or contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.
		Held-to-maturity							Available-for-sale
	(In thousands)	Amortized			Estimated				Amortized				Estimated
		cost			fair				cost				fair
					value								value
Due in one year or less	$	77,219		$	77,458			$	528,660			$	519,418
Due after one year through five years	199,307			205,355				1,328,670				1,323,839
Due after five years through ten years	139,558			143,066				805,257				797,432
Due after ten years	233,845			216,650				832,552				751,087
	$	649,929		$	642,529			$	3,495,139			$	3,391,776
The following is a summary of the amount of gross unrealized losses for investment securities and the estimated fair value by length of time the securities have been in an unrealized loss position:
	September 30, 2014
	Less than 12 months							12 months or more								Total
(In thousands)	Gross			Estimated				Gross				Estimated				Gross			Estimated
	unrealized			fair				unrealized				fair				unrealized			fair
	losses			value				losses				value				losses			value
Held-to-maturity
Municipal securities	$	275		$	15,546			$	554			$	17,334			$	829		$	32,880
Asset-backed securities:
Trust preferred securities – banks and insurance	54			92				41,078				58,543				41,132			58,635
	329			15,638				41,632				75,877				41,961			91,515
Available-for-sale
U.S. Government agencies and corporations:
Agency securities	6,936			336,846				925				25,295				7,861			362,141
Agency guaranteed mortgage-backed securities	264			87,575				332				15,809				596			103,384
Small Business Administration loan-backed securities	3,741			426,197				2,398				127,107				6,139			553,304
Municipal securities	164			23,538				567				4,381				731			27,919
Asset-backed securities:
Trust preferred securities – banks and insurance	—			—				129,284				507,065				129,284			507,065
Auction rate securities	—			—				—				—				—			—
	11,105			874,156				133,506				679,657				144,611			1,553,813
Mutual funds and other	664			27,817				1,622				48,471				2,286			76,288
	11,769			901,973				135,128				728,128				146,897			1,630,101
Total	$	12,098		$	917,611			$	176,760			$	804,005			$	188,858		$	1,721,616
		December 31, 2013
		Less than 12 months							12 months or more								Total
	(In thousands)	Gross			Estimated				Gross				Estimated				Gross			Estimated
		unrealized			fair				unrealized				fair				unrealized			fair
		losses			value				losses				value				losses			value
	Held-to-maturity
	Municipal securities	$	4,025		$	70,400			$	591			$	9,103			$	4,616		$	79,503
	Asset-backed securities:
	Trust preferred securities – banks and insurance	—			—				42,901				51,319				42,901			51,319
		4,025			70,400				43,492				60,422				47,517			130,822
	Available-for-sale
	U.S. Government agencies and corporations:
	Agency securities	828			47,862				73				5,874				901			53,736
	Agency guaranteed mortgage-backed securities	1,231			64,533				6				935				1,237			65,468
	Small Business Administration loan-backed securities	1,709			187,680				1,062				39,256				2,771			226,936
	Municipal securities	73			8,834				417				3,179				490			12,013
	Asset-backed securities:
	Trust preferred securities – banks and insurance	2,539			51,911				280,304				847,990				282,843			899,901
	Auction rate securities	5			1,609				21				892				26			2,501
		6,385			362,429				281,883				898,126				288,268			1,260,555
	Mutual funds and other	943			24,057				6,478				103,614				7,421			127,671
		7,328			386,486				288,361				1,001,740				295,689			1,388,226
	Total	$	11,353		$	456,886			$	331,853			$	1,062,162			$	343,206		$	1,519,048
At September 30, 2014 and December 31, 2013, respectively, 53 and 157 HTM and 395 and 317 AFS investment securities were in an unrealized loss position.
Other-Than-Temporary Impairment
Ongoing Policy
We conduct a formal review of investment securities on a quarterly basis for the presence of other-than-temporary impairment (“OTTI”). We assess whether OTTI is present when the fair value of a debt security is less than its amortized cost basis at the balance sheet date (the vast majority of the investment portfolio are debt securities). Under these circumstances, OTTI is considered to have occurred if (1) we intend to sell the security; (2) it is “more likely than not” we will be required to sell the security before recovery of its amortized cost basis; or (3) the present value of expected cash flows is not sufficient to recover the entire amortized cost basis.
Noncredit-related OTTI in securities we intend to sell is recognized in earnings as is any credit-related OTTI in securities, regardless of our intent. Noncredit-related OTTI on AFS securities not expected to be sold is recognized in OCI. The amount of noncredit-related OTTI in a security is quantified as the difference in a security’s amortized cost after adjustment for credit impairment, and its lower fair value. Presentation of OTTI is made in the statement of income on a gross basis with an offset for the amount of OTTI recognized in OCI. For securities classified as HTM, the amount of noncredit-related OTTI recognized in OCI is accreted using the effective interest rate method to the credit-adjusted expected cash flow amounts of the securities over future periods.
Effect of Volcker Rule, CDO Sales and Paydowns
On December 10, 2013, the final Volcker Rule (“VR”) was published pursuant to the Dodd-Frank Wall Street Reform and Consumer Protection Act (“Dodd-Frank Act”). The VR significantly restricted certain activities by covered bank holding companies, including restrictions on certain types of securities, proprietary trading, and private equity investing. On January 14, 2014, the VR’s application to certain CDO securities was revised by an Interim Final Rule (“IFR”) related primarily to bank trust preferred CDO securities.
Certain of the Company’s CDO securities backed primarily by insurance trust preferred securities, real estate investment trust (“REIT”) securities, and asset-backed securities (“ABS”) became disallowed to be held effective July 21, 2015 under the VR and the IFR. This regulatory change resulted in the Company no longer being able to hold these securities to maturity. Further, to reduce the risk profile of the portfolio, we determined as of December 31, 2013 an intent to sell certain disallowed as well as other allowed CDO securities.
During the first quarter of 2014, we recorded a total of $993 million par amount of sales and paydowns of CDO securities. Included in this amount were $631 million par amount that had been identified for sale as of December 31, 2013 and their amortized cost was adjusted to fair value as of that date. Another $301 million par amount of primarily insurance CDOs were not adjusted to fair value at December 31, 2013 because the Company did not, at that date, intend to sell these securities. Net gains for the first quarter were approximately $31 million.
During the second quarter of 2014, we recorded $25 million par amount of paydowns of CDO securities, which resulted in gains of approximately $5 million. No CDO securities were sold during the second quarter.
During the third quarter of 2014, we recorded $37 million par amount of paydowns of CDO securities, which resulted in gains of approximately $5 million. We sold $239 million par amount ($174 million amortized cost) of CDO securities, resulting in losses of $19 million.
See discussion following regarding certain private equity and other noninterest-bearing investments that are prohibited by the Volcker Rule.
OTTI Conclusions
Our 2013 Annual Report on Form 10-K describes in more detail our OTTI evaluation process. The following summarizes the conclusions from our OTTI evaluation according to the security type that has significant gross unrealized losses at September 30, 2014:
OTTI – Asset-Backed Securities
Trust preferred securities – banks and insurance: These CDO securities are interests in variable rate pools of trust preferred securities issued by trusts related to bank holding companies and insurance companies (“collateral issuers”). They are rated by one or more Nationally Recognized Statistical Rating Organizations (“NRSROs”), which are rating agencies registered with the Securities and Exchange Commission (“SEC”). The more junior securities were purchased generally at par, while the senior securities were purchased from Lockhart Funding LLC (“Lockhart”), a previously consolidated qualifying special-purpose entity securities conduit, at their carrying values (generally par) and then adjusted to their lower fair values. The primary drivers that have given rise to the unrealized losses on CDOs with bank and insurance collateral are listed below:
1)	Market yield requirements for bank CDO securities remain elevated. The financial crisis and economic downturn resulted in significant utilization of both the unique five-year deferral option, which each collateral issuer maintains during the life of the CDO, and the payment in kind (“PIK”) feature described subsequently. The resulting increase in the rate of return demanded by the market for trust preferred CDOs remains substantially higher than the contractual interest rates. CDO tranches backed by bank trust preferred securities continue to be characterized by uncertainty surrounding collateral behavior, specifically including, but not limited to, prepayments; the future number, size and timing of bank failures; holding company bankruptcies; and allowed deferrals and subsequent resumption of payment or default due to nonpayment of contractual interest.
2)	Structural features of the collateral make these CDO tranches difficult for market participants to model. The first feature unique to bank CDOs is the interest deferral feature previously noted. Throughout the crisis starting in 2008, certain banks within our CDO pools have exercised this prerogative. The extent to which these deferrals are likely to either transition to default or, alternatively, come current prior to the five-year deadline is extremely difficult for market participants to assess.
A second structural feature that is difficult to model is the PIK feature, which provides that upon reaching certain levels of collateral default or deferral, certain junior CDO tranches will not receive current interest but will instead have the interest amount that is unpaid capitalized or deferred. The delay in payment caused by PIKing results in lower security fair values even if PIKing is projected to be fully cured.
3)	Although we continue to see ratings upgrades of securities held in our CDO portfolio every quarter, the ratings from one NRSRO remain below-investment-grade for even some of the most senior tranches that originally were rated AAA. Ratings on a number of CDO tranches vary significantly among rating agencies. The presence of a below-investment-grade rating by even a single rating agency generally reduces the pool of buyers, which causes greater illiquidity and therefore most likely a higher implicit discount rate/lower price with regard to that CDO tranche.
Our ongoing review of these securities determined that no OTTI should be recorded in the third quarter of 2014. For year-to-date, an immaterial amount was recorded in the first quarter of 2014.
The following is a tabular rollforward of the total amount of credit-related OTTI:
(In thousands)	Three Months Ended											Nine Months Ended
	30-Sep-14											30-Sep-14
	HTM			AFS				Total				HTM				AFS			Total
Balance of credit-related OTTI at beginning	$	(9,079	)	$	(163,914	)		$	(172,993	)		$	(9,052	)		$	(176,833	)	$	(185,885	)
of period
Additions recognized in earnings during the period:
Credit-related OTTI on securities not previously impaired	—			—				—				—				—			—
Additional credit-related OTTI on securities previously impaired	—			—				—				(27		)		—			(27		)
Subtotal of amounts recognized in earnings	—			—				—				(27		)		—			(27		)
Reductions for securities sold or paid off during the period	—			44,929				44,929				—				57,848			57,848
Balance of credit-related OTTI at end of period	$	(9,079	)	$	(118,985	)		$	(128,064	)		$	(9,079	)		$	(118,985	)	$	(128,064	)
(In thousands)	Three Months Ended											Nine Months Ended
	30-Sep-13											30-Sep-13
	HTM			AFS				Total				HTM				AFS			Total
Balance of credit-related OTTI at beginning	$	(13,952	)	$	(406,577	)		$	(420,529	)		$	(13,549	)		$	(394,494	)	$	(408,043	)
of period
Additions recognized in earnings during the period:
Credit-related OTTI on securities not previously impaired	—			(168		)		(168		)		(403		)		(168		)	(571		)
Additional credit-related OTTI on securities previously impaired	—			(8,899		)		(8,899		)		—				(22,830		)	(22,830		)
Subtotal of amounts recognized in earnings	—			(9,067		)		(9,067		)		(403		)		(22,998		)	(23,401		)
Reductions for securities sold or paid off during the period	—			—				—				—				1,848			1,848
Balance of credit-related OTTI at end of period	$	(13,952	)	$	(415,644	)		$	(429,596	)		$	(13,952	)		$	(415,644	)	$	(429,596	)
To determine the credit component of OTTI for all security types, we utilize projected cash flows. These cash flows are credit adjusted using, among other things, assumptions for default probability and loss severity. Certain other unobservable inputs such as prepayment rate assumptions are utilized. In addition, certain internal and external models may be utilized. See Note 10 for further discussion. To determine the credit-related portion of OTTI in accordance with applicable accounting guidance, we use the security specific effective interest rate when estimating the present value of cash flows.
For those securities with credit-related OTTI recognized in the statement of income, the amounts of pretax noncredit-related OTTI recognized in OCI were as follows:
(In thousands)	Three Months Ended							Nine Months Ended
	September 30,							September 30,
	2014			2013				2014				2013
HTM	$	—		$	—			$	—			$	16,114
AFS	—			1,403				—				7,358
	$	—		$	1,403			$	—			$	23,472
The following summarizes gains and losses, including OTTI, that were recognized in the statement of income:
		Three Months Ended															Nine Months Ended
		September 30, 2014							September 30, 2013								September 30, 2014							September 30, 2013
	(In thousands)	Gross gains			Gross losses				Gross gains				Gross losses				Gross gains			Gross losses				Gross gains		Gross losses
	Investment securities:
	Held-to-maturity	$	2		$	—			$	32			$	—			$	2		$	27			$	63	$	403
	Available-for-sale	5,873			20,063				1,551				9,070				83,466			62,948				7,989		27,324
	Other noninterest-bearing investments:
	Nonmarketable equity securities	5,911			5,184				4,802				1,637				10,568			5,184				9,868		1,662
		11,786			25,247				6,385				10,707				94,036			68,159				17,920		29,389
	Net gains (losses)				$	(13,461	)						$	(4,322	)					$	25,877					$	(11,469	)
	Statement of income information:
	Net impairment losses on investment securities				$	—							$	(9,067	)					$	(27	)				$	(23,401	)
	Equity securities gains, net				440								3,165							3,865						8,206
	Fixed income securities gains (losses), net				(13,901		)						1,580							22,039						3,726
	Net gains (losses)				$	(13,461	)						$	(4,322	)					$	25,877					$	(11,469	)
Gross gains for nonmarketable equity securities in the three months ended September 30, 2014 included approximately $4.4 million resulting from the sale of $6.5 million of private equity and other noninterest-bearing investments that are prohibited by the Volcker Rule. At September 30, 2014, the remaining amount of these prohibited investments was approximately $51 million. We are taking steps to sell these investments by the required deadline of July 21, 2015. We do not expect that the total result of such sales will ultimately have a material effect on the Company’s financial statements. See further discussions in Notes 10 and 11.
Interest income by security type is as follows:
(In thousands)	Three Months Ended											Nine Months Ended
	30-Sep-14											30-Sep-14
	Taxable			Nontaxable				Total				Taxable				Nontaxable			Total
Investment securities:
Held-to-maturity	$	3,597		$	2,805			$	6,402			$	11,146			$	8,448		$	19,594
Available-for-sale	16,895			677				17,572				54,099				1,829			55,928
Trading	403			—				403				1,451				—			1,451
	$	20,895		$	3,482			$	24,377			$	66,696			$	10,277		$	76,973
(In thousands)	Three Months Ended											Nine Months Ended
	30-Sep-13											30-Sep-13
	Taxable			Nontaxable				Total				Taxable				Nontaxable			Total
Investment securities:
Held-to-maturity	$	4,872		$	2,867			$	7,739			$	14,957			$	8,602		$	23,559
Available-for-sale	16,425			492				16,917				52,115				1,542			53,657
Trading	210			—				210				687				—			687
	$	21,507		$	3,359			$	24,866			$	67,759			$	10,144		$	77,903
Securities with a carrying value of $1.2 billion at September 30, 2014 and $1.5 billion at December 31, 2013 were pledged to secure public and trust deposits, advances, and for other purposes as required by law. Securities are also pledged as collateral for security repurchase agreements.

Loans_And_Allowance_For_Credit

Loans And Allowance For Credit Losses	9 Months Ended
	Sep. 30, 2014
Loans And Allowance For Credit Losses [Abstract]	'
Loans And Allowance For Credit Losses	'
	LOANS AND ALLOWANCE FOR CREDIT LOSSES
	Loans and Loans Held for Sale
	Loans are summarized as follows according to major portfolio segment and specific loan class:
	(In thousands)	September 30,			December 31,
		2014			2013
	Loans held for sale	$	109,139		$	171,328
	Commercial:
	Commercial and industrial	$	12,896,517		$	12,481,083
	Leasing	404,542			387,929
	Owner occupied	7,334,498			7,437,195
	Municipal	517,953			449,418
	Total commercial	21,153,510			20,755,625
	Commercial real estate:
	Construction and land development	1,892,723			2,182,821
	Term	8,165,723			8,005,837
	Total commercial real estate	10,058,446			10,188,658
	Consumer:
	Home equity credit line	2,255,172			2,133,120
	1-4 family residential	5,152,872			4,736,665
	Construction and other consumer real estate	350,248			324,922
	Bankcard and other revolving plans	388,588			356,240
	Other	190,518			197,864
	Total consumer	8,337,398			7,748,811
	FDIC-supported/PCI loans	190,441			350,271
	Total loans	$	39,739,795		$	39,043,365
	Loan balances are presented net of unearned income and fees, which amounted to $147.3 million at September 30, 2014 and $141.7 million at December 31, 2013.
	Owner occupied and commercial real estate (“CRE”) loans include unamortized premiums of approximately $39.2 million at September 30, 2014 and $47.2 million at December 31, 2013.
	Municipal loans generally include loans to municipalities with the debt service being repaid from general funds or pledged revenues of the municipal entity, or to private commercial entities or 501(c)(3) not-for-profit entities utilizing a pass-through municipal entity to achieve favorable tax treatment.
	Land development loans included in the construction and land development loan class were $497.9 million at September 30, 2014 and $561.3 million at December 31, 2013.
	FDIC-supported loans were acquired during 2009 and, prior to October 1, 2014, were indemnified by the Federal Deposit Insurance Corporation (“FDIC”) under loss sharing agreements. The FDIC-supported loan balances presented in the accompanying schedules include purchased credit-impaired (“PCI”) loans accounted for at their carrying values rather than their outstanding balances. See subsequent discussion under Purchased Loans.
	Loans with a carrying value of approximately $23.2 billion at September 30, 2014 and $23.0 billion at December 31, 2013 have been pledged at the Federal Reserve and various Federal Home Loan Banks (“FHLB”) as collateral for current and potential borrowings. Note 8 presents the balance of FHLB advances made to the Company against this pledged collateral.
	We sold loans with a carrying value of $341.3 million and $939.0 million for the three and nine months ended September 30, 2014, and $421.0 million and $1,315.3 million for the three and nine months ended September 30, 2013, respectively, that were classified as loans held for sale. The sold loans were derecognized from the balance sheet. Loans classified as loans held for sale primarily consist of conforming residential mortgages. The principal balance of sold loans for which we retain servicing was approximately $1.2 billion at both September 30, 2014 and December 31, 2013.
	Amounts added to loans held for sale during these periods were $297.8 million and $894.9 million for the three and nine months ended September 30, 2014, and $374.2 million and $1,152.0 million for the three and nine months ended September 30, 2013, respectively. Income from loans sold, excluding servicing, was $4.2 million and $11.3 million for the three and nine months ended September 30, 2014, and $5.4 million and $22.0 million for the three and nine months ended September 30, 2013, respectively.
	During the third quarter of 2014, construction and land development loans decreased by $447 million due to conversions to term loans, and increased syndication and participation arrangements. Additionally, 1-4 family residential loans increased by $326 million, primarily due to the purchase of $249 million par amount of high quality jumbo ARM loans from another bank. Management took these actions to improve the risk profile of the Company’s loans and reduce portfolio concentration risk.
	Allowance for Credit Losses
	The allowance for credit losses (“ACL”) consists of the allowance for loan and lease losses (“ALLL”) (also referred to as the allowance for loan losses) and the reserve for unfunded lending commitments (“RULC”).
	Allowance for Loan and Lease Losses
	The ALLL represents our estimate of probable and estimable losses inherent in the loan and lease portfolio as of the balance sheet date. Losses are charged to the ALLL when recognized. Generally, commercial loans are charged off or charged down at the point at which they are determined to be uncollectible in whole or in part, or when 180 days past due unless the loan is well secured and in the process of collection. Consumer loans are either charged off or charged down to net realizable value no later than the month in which they become 180 days past due. Closed-end consumer loans that are not secured by residential real estate are either charged off or charged down to net realizable value no later than the month in which they become 120 days past due. We establish the amount of the ALLL by analyzing the portfolio at least quarterly, and we adjust the provision for loan losses so the ALLL is at an appropriate level at the balance sheet date.
	We determine our ALLL as the best estimate within a range of estimated losses. The methodologies we use to estimate the ALLL depend upon the impairment status and portfolio segment of the loan. The methodology for impaired loans is discussed subsequently. For the commercial and CRE segments, we use a comprehensive loan grading system to assign probability of default (“PD”) and loss given default (“LGD”) grades to each loan. The credit quality indicators discussed subsequently are based on this grading system. In addition, loan officers utilize “expert judgment” in assigning PD and LGD grades, subject to confirmation of the PD and LGD by either credit risk or credit examination. We create groupings of these grades for each subsidiary bank and loan class and calculate historic loss rates using a loss migration analysis that attributes historic realized losses to these loan grade groupings over the period of January 2008 through the most recent full quarter.
	For the consumer loan segment, we use roll rate models to forecast probable inherent losses. Roll rate models measure the rate at which consumer loans migrate from one delinquency category to the next worse delinquency category, and eventually to loss. We estimate roll rates for consumer loans using recent delinquency and loss experience by segmenting our consumer loan portfolio into separate pools based on common risk characteristics and separately calculating historical delinquency and loss experience for each pool. These roll rates are then applied to current delinquency levels to estimate probable inherent losses. Roll rates incorporate housing market trends inasmuch as these trends manifest themselves in charge-offs and delinquencies. In addition, our qualitative and environmental factors discussed subsequently incorporate the most recent housing market trends.
	For FDIC-supported/PCI loans purchased with evidence of credit deterioration, we determine the ALLL according to separate accounting guidance. The accounting for these loans, including the allowance calculation, is described in the Purchased Loans section following.
	The current status and historical changes in qualitative and environmental factors may not be reflected in our quantitative models. Thus, after applying historical loss experience, as described above, we review the quantitatively derived level of ALLL for each segment using qualitative criteria and use those criteria to determine our estimate within the range. We track various risk factors that influence our judgment regarding the level of the ALLL across the portfolio segments. These factors primarily include:
	•	Asset quality trends
	•	Risk management and loan administration practices
	•	Risk identification practices
	•	Effect of changes in the nature and volume of the portfolio
	•	Existence and effect of any portfolio concentrations
	•	National economic and business conditions
	•	Regional and local economic and business conditions
	•	Data availability and applicability
	•	Effects of other external factors
	The magnitude of the impact of these factors on our qualitative assessment of the ALLL changes from quarter to quarter according to the extent these factors are already reflected in historic loss rates and according to the extent these factors diverge from one to another. We also consider the uncertainty inherent in the estimation process when evaluating the ALLL.
	During the three and nine months ended September 30, the provision for loan losses was $(54.6) million and $(109.7) million in 2014, and $(5.6) million and $(56.6) million in 2013, respectively. The negative provisions are due to continued significant improvement in portfolio-specific credit quality metrics, sustained improvement in broader economic and credit quality indicators, and changes in the portfolio mix resulting from the construction and land development loan participations and the jumbo ARM loan purchase previously discussed.
	Reserve for Unfunded Lending Commitments
	We also estimate a reserve for potential losses associated with off-balance sheet commitments, including standby letters of credit. We determine the RULC using the same procedures and methodologies that we use for the ALLL. The loss factors used in the RULC are the same as the loss factors used in the ALLL, and the qualitative adjustments used in the RULC are the same as the qualitative adjustments used in the ALLL. We adjust the Company’s unfunded lending commitments that are not unconditionally cancelable to an outstanding amount equivalent using credit conversion factors, and we apply the loss factors to the outstanding equivalents.
	During the three and nine months ended September 30, the provision for unfunded lending commitments was $(16.1) million and $(10.3) million in 2014, and $(19.9) million and $(22.7) million in 2013, respectively. The negative provisions are due to the same reasons as the provision for loan losses previously discussed.
	Changes in the allowance for credit losses are summarized as follows:
		Three Months Ended September 30, 2014
	(In thousands)	Commercial			Commercial				Consumer			FDIC-				Total
					real estate							supported/PCI 1
	Allowance for loan losses:
	Balance at beginning of period	$	440,234		$	187,261			$	44,535		$	3,877			$	675,907
	Additions:
Provision for loan losses	(20,073		)	(34,179		)		(422		)	31				(54,643		)
Adjustment for FDIC-supported/PCI loans											(25		)		(25		)
Deductions:
Gross loan and lease charge-offs	(18,575		)	(3,320		)		(3,061		)	(1,515		)		(26,471		)
Recoveries	8,870			3,332				3,028			279				15,509
Net loan and lease charge-offs	(9,705		)	12				(33		)	(1,236		)		(10,962		)
Balance at end of period	$	410,456		$	153,094			$	44,080		$	2,647			$	610,277
Reserve for unfunded lending commitments:
Balance at beginning of period	$	52,801		$	38,689			$	3,982		$	—			$	95,472
Provision charged (credited) to earnings	1,651			(14,390		)		(3,356		)	—				(16,095		)
Balance at end of period	$	54,452		$	24,299			$	626		$	—			$	79,377
Total allowance for credit losses at end of period:
Allowance for loan losses	$	410,456		$	153,094			$	44,080		$	2,647			$	610,277
Reserve for unfunded lending commitments	54,452			24,299				626			—				79,377
Total allowance for credit losses	$	464,908		$	177,393			$	44,706		$	2,647			$	689,654
	Nine Months Ended September 30, 2014
(In thousands)	Commercial			Commercial				Consumer			FDIC-				Total
				real estate							supported/PCI 1
Allowance for loan losses:
Balance at beginning of period	$	465,145		$	213,363			$	60,865		$	6,918			$	746,291
Additions:
Provision for loan losses	(38,269		)	(55,094		)		(14,522		)	(1,784		)		(109,669		)
Adjustment for FDIC-supported/PCI loans	—			—				—			(1,286		)		(1,286		)
Deductions:
Gross loan and lease charge-offs	(42,702		)	(14,135		)		(10,433		)	(3,396		)		(70,666		)
Recoveries	26,282			8,960				8,170			2,195				45,607
Net loan and lease charge-offs	(16,420		)	(5,175		)		(2,263		)	(1,201		)		(25,059		)
Balance at end of period	$	410,456		$	153,094			$	44,080		$	2,647			$	610,277
Reserve for unfunded lending commitments:
Balance at beginning of period	$	48,345		$	37,485			$	3,875		$	—			$	89,705
Provision charged (credited) to earnings	6,107			(13,186		)		(3,249		)	—				(10,328		)
Balance at end of period	$	54,452		$	24,299			$	626		$	—			$	79,377
Total allowance for credit losses at end of period:
Allowance for loan losses	$	410,456		$	153,094			$	44,080		$	2,647			$	610,277
Reserve for unfunded lending commitments	54,452			24,299				626			—				79,377
Total allowance for credit losses	$	464,908		$	177,393			$	44,706		$	2,647			$	689,654
	Three Months Ended September 30, 2013
(In thousands)	Commercial			Commercial				Consumer			FDIC-				Total
				real estate							supported/PCI 1
Allowance for loan losses:
Balance at beginning of period	$	486,353		$	251,278			$	70,366		$	5,915			$	813,912
Additions:
Provision for loan losses	(1,768		)	(4,520		)		569			146				(5,573		)
Adjustment for FDIC-supported/PCI loans	—			—				—			(2,118		)		(2,118		)
Deductions:
Gross loan and lease charge-offs	(11,465		)	(5,738		)		(5,535		)	(88		)		(22,826		)
Recoveries	6,155			2,988				3,109			1,876				14,128
Net loan and lease charge-offs	(5,310		)	(2,750		)		(2,426		)	1,788				(8,698		)
Balance at end of period	$	479,275		$	244,008			$	68,509		$	5,731			$	797,523
Reserve for unfunded lending commitments:
Balance at beginning of period	$	63,272		$	39,454			$	1,356		$	—			$	104,082
Provision charged (credited) to earnings	(16,133		)	(6,010		)		2,208			—				(19,935		)
Balance at end of period	$	47,139		$	33,444			$	3,564		$	—			$	84,147
Total allowance for credit losses at end of period:
Allowance for loan losses	$	479,275		$	244,008			$	68,509		$	5,731			$	797,523
Reserve for unfunded lending commitments	47,139			33,444				3,564			—				84,147
Total allowance for credit losses	$	526,414		$	277,452			$	72,073		$	5,731			$	881,670
	Nine Months Ended September 30, 2013
(In thousands)	Commercial			Commercial				Consumer			FDIC-				Total
				real estate							supported/PCI 1
Allowance for loan losses:
Balance at beginning of period	$	510,908		$	276,976			$	95,656		$	12,547			$	896,087
Additions:
Provision for loan losses	(10,179		)	(34,370		)		(12,725		)	676				(56,598		)
Adjustment for FDIC-supported/PCI loans	—			—				—			(9,756		)		(9,756		)
Deductions:
Gross loan and lease charge-offs	(48,073		)	(19,069		)		(24,574		)	(1,676		)		(93,392		)
Recoveries	26,619			20,471				10,152			3,940				61,182
Net loan and lease charge-offs	(21,454		)	1,402				(14,422		)	2,264				(32,210		)
Balance at end of period	$	479,275		$	244,008			$	68,509		$	5,731			$	797,523
Reserve for unfunded lending commitments:
Balance at beginning of period	$	67,374		$	37,852			$	1,583		$	—			$	106,809
Provision charged (credited) to earnings	(20,235		)	(4,408		)		1,981			—				(22,662		)
Balance at end of period	$	47,139		$	33,444			$	3,564		$	—			$	84,147
Total allowance for credit losses at end of period:
Allowance for loan losses	$	479,275		$	244,008			$	68,509		$	5,731			$	797,523
Reserve for unfunded lending commitments	47,139			33,444				3,564			—				84,147
Total allowance for credit losses	$	526,414		$	277,452			$	72,073		$	5,731			$	881,670
1 The Purchased Loans section following contains further discussion related to FDIC-supported/PCI loans.
The ALLL and outstanding loan balances according to the Company’s impairment method are summarized as follows:
	September 30, 2014
(In thousands)	Commercial			Commercial				Consumer			FDIC-				Total
				real estate							supported/PCI
Allowance for loan losses:
Individually evaluated for impairment	$	30,239		$	5,874			$	9,072		$	—			$	45,185
Collectively evaluated for impairment	380,217			147,220				35,008			41				562,486
Purchased loans with evidence of credit deterioration	—			—				—			2,606				2,606
Total	$	410,456		$	153,094			$	44,080		$	2,647			$	610,277
Outstanding loan balances:
Individually evaluated for impairment	$	270,559		$	183,579			$	94,360		$	5			$	548,503
Collectively evaluated for impairment	20,882,951			9,874,867				8,243,038			5,480				39,006,336
Purchased loans with evidence of credit deterioration	—			—				—			184,956				184,956
Total	$	21,153,510		$	10,058,446			$	8,337,398		$	190,441			$	39,739,795
	December 31, 2013
(In thousands)	Commercial			Commercial				Consumer			FDIC-				Total
				real estate							supported/PCI
Allowance for loan losses:
Individually evaluated for impairment	$	39,288		$	12,510			$	10,701		$	—			$	62,499
Collectively evaluated for impairment	425,857			200,853				50,164			392				677,266
Purchased loans with evidence of credit deterioration	—			—				—			6,526				6,526
Total	$	465,145		$	213,363			$	60,865		$	6,918			$	746,291
Outstanding loan balances:
Individually evaluated for impairment	$	315,604		$	262,907			$	101,545		$	1,224			$	681,280
Collectively evaluated for impairment	20,440,021			9,925,751				7,647,266			37,963				38,051,001
Purchased loans with evidence of credit deterioration	—			—				—			311,084				311,084
Total	$	20,755,625		$	10,188,658			$	7,748,811		$	350,271			$	39,043,365
Nonaccrual and Past Due Loans
Loans are generally placed on nonaccrual status when payment in full of principal and interest is not expected, or the loan is 90 days or more past due as to principal or interest, unless the loan is both well secured and in the process of collection. Factors we consider in determining whether a loan is placed on nonaccrual include delinquency status, collateral value, borrower or guarantor financial statement information, bankruptcy status, and other information which would indicate that the full and timely collection of interest and principal is uncertain.
A nonaccrual loan may be returned to accrual status when all delinquent interest and principal become current in accordance with the terms of the loan agreement; the loan, if secured, is well secured; the borrower has paid according to the contractual terms for a minimum of six months; and analysis of the borrower indicates a reasonable assurance of the ability and willingness to maintain payments. Payments received on nonaccrual loans are applied as a reduction to the principal outstanding.
Closed-end loans with payments scheduled monthly are reported as past due when the borrower is in arrears for two or more monthly payments. Similarly, open-end credit such as charge-card plans and other revolving credit plans are reported as past due when the minimum payment has not been made for two or more billing cycles. Other multi-payment obligations (i.e., quarterly, semiannual, etc.), single payment, and demand notes are reported as past due when either principal or interest is due and unpaid for a period of 30 days or more.
Nonaccrual loans are summarized as follows:
(In thousands)	September 30,			December 31,
	2014			2013
Commercial:
Commercial and industrial	$	87,810		$	97,960
Leasing	369			757
Owner occupied	97,749			136,281
Municipal	8,684			9,986
Total commercial	194,612			244,984
Commercial real estate:
Construction and land development	22,728			29,205
Term	29,704			60,380
Total commercial real estate	52,432			89,585
Consumer:
Home equity credit line	11,756			8,969
1-4 family residential	43,445			53,002
Construction and other consumer real estate	2,037			3,510
Bankcard and other revolving plans	254			1,365
Other	140			804
Total consumer loans	57,632			67,650
FDIC-supported/PCI loans	2,554			4,394
Total	$	307,230		$	406,613
Past due loans (accruing and nonaccruing) are summarized as follows:
	September 30, 2014
(In thousands)	Current			30-89 days				90+ days			Total				Total			Accruing		Nonaccrual
				past due				past due			past due				loans			loans		loans
																		90+ days		that are
																		past due		current 1
Commercial:
Commercial and industrial	$	12,819,580		$	36,177			$	40,760		$	76,937			$	12,896,517		$	2,157	$	45,530
Leasing	404,501			15				26			41				404,542			—		343
Owner occupied	7,270,149			26,660				37,689			64,349				7,334,498			1,969		54,316
Municipal	517,953			—				—			—				517,953			—		8,684
Total commercial	21,012,183			62,852				78,475			141,327				21,153,510			4,126		108,873
Commercial real estate:
Construction and land development	1,881,153			1,965				9,605			11,570				1,892,723			—		13,002
Term	8,126,717			22,052				16,954			39,006				8,165,723			852		12,040
Total commercial real estate	10,007,870			24,017				26,559			50,576				10,058,446			852		25,042
Consumer:
Home equity credit line	2,241,766			3,625				9,781			13,406				2,255,172			—		1,534
1-4 family residential	5,119,368			8,818				24,686			33,504				5,152,872			1,623		16,619
Construction and other consumer real estate	348,408			617				1,223			1,840				350,248			585		1,329
Bankcard and other revolving plans	385,918			1,755				915			2,670				388,588			771		65
Other	189,921			537				60			597				190,518			17		93
Total consumer loans	8,285,381			15,352				36,665			52,017				8,337,398			2,996		19,640
FDIC-supported/PCI loans	160,850			4,301				25,290			29,591				190,441			22,781		—
Total	$	39,466,284		$	106,522			$	166,989		$	273,511			$	39,739,795		$	30,755	$	153,555
	December 31, 2013
(In thousands)	Current			30-89 days				90+ days			Total				Total			Accruing		Nonaccrual
				past due				past due			past due				loans			loans		loans
																		90+ days		that are
																		past due		current 1
Commercial:
Commercial and industrial	$	12,387,546		$	48,811			$	44,726		$	93,537			$	12,481,083		$	1,855	$	52,412
Leasing	387,526			173				230			403				387,929			36		563
Owner occupied	7,357,618			36,718				42,859			79,577				7,437,195			744		82,072
Municipal	440,608			3,307				5,503			8,810				449,418			—		1,176
Total commercial	20,573,298			89,009				93,318			182,327				20,755,625			2,635		136,223
Commercial real estate:
Construction and land development	2,162,018			8,967				11,836			20,803				2,182,821			23		17,311
Term	7,971,327			15,362				19,148			34,510				8,005,837			5,580		42,624
Total commercial real estate	10,133,345			24,329				30,984			55,313				10,188,658			5,603		59,935
Consumer:
Home equity credit line	2,122,549			8,001				2,570			10,571				2,133,120			98		2,868
1-4 family residential	4,704,852			8,526				23,287			31,813				4,736,665			667		27,592
Construction and other consumer real estate	322,807			1,038				1,077			2,115				324,922			—		2,232
Bankcard and other revolving plans	353,060			2,093				1,087			3,180				356,240			900		1,105
Other	196,327			827				710			1,537				197,864			54		125
Total consumer loans	7,699,595			20,485				28,731			49,216				7,748,811			1,719		33,922
FDIC-supported/PCI loans	305,709			12,026				32,536			44,562				350,271			30,391		1,975
Total	$	38,711,947		$	145,849			$	185,569		$	331,418			$	39,043,365		$	40,348	$	232,055
1 Represents nonaccrual loans that are not past due more than 30 days; however, full payment of principal and interest is still not expected.
Credit Quality Indicators
In addition to the past due and nonaccrual criteria, we also analyze loans using loan risk grading systems, which vary based on the size and type of credit risk exposure. The internal risk grades assigned to loans follow our definitions of Pass, Special Mention, Substandard, and Doubtful, which are consistent with published definitions of regulatory risk classifications.
Definitions of Pass, Special Mention, Substandard, and Doubtful are summarized as follows:
Pass – A Pass asset is higher quality and does not fit any of the other categories described below. The likelihood of loss is considered remote.
Special Mention – A Special Mention asset has potential weaknesses that deserve management’s close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the asset or in the bank’s credit position at some future date.
Substandard – A Substandard asset is inadequately protected by the current sound worth and paying capacity of the obligor or of the collateral pledged, if any. Assets so classified have well defined weaknesses and are characterized by the distinct possibility that the bank may sustain some loss if deficiencies are not corrected.
Doubtful – A Doubtful asset has all the weaknesses inherent in a Substandard asset with the added characteristics that the weaknesses make collection or liquidation in full highly questionable and improbable.
We generally assign internal risk grades to commercial and CRE loans with commitments equal to or greater than $750,000 based on financial and statistical models, individual credit analysis, and loan officer judgment. For these larger loans, we assign one of multiple grades within the Pass classification or one of the following four grades: Special Mention, Substandard, Doubtful, and Loss. Loss indicates that the outstanding balance has been charged off. We confirm our internal risk grades quarterly, or as soon as we identify information that affects the credit risk of the loan.
For consumer loans or certain small commercial loans with commitments equal to or less than $750,000, we generally assign internal risk grades similar to those described previously based on automated rules that depend on refreshed credit scores, payment performance, and other risk indicators. These are generally assigned either a Pass or Substandard grade and are reviewed as we identify information that might warrant a grade change.
Outstanding loan balances (accruing and nonaccruing) categorized by these credit quality indicators are summarized as follows:
	September 30, 2014
(In thousands)	Pass			Special				Sub-			Doubtful				Total			Total
				Mention				standard							loans			allowance
Commercial:
Commercial and industrial	$	12,245,426		$	234,086			$	406,326		$	10,679			$	12,896,517
Leasing	395,119			6,950				2,473			—				404,542
Owner occupied	6,779,463			192,458				362,577			—				7,334,498
Municipal	507,955			1,314				8,684			—				517,953
Total commercial	19,927,963			434,808				780,060			10,679				21,153,510			$	410,456
Commercial real estate:
Construction and land development	1,834,329			13,845				44,549			—				1,892,723
Term	7,845,622			109,929				210,172			—				8,165,723
Total commercial real estate	9,679,951			123,774				254,721			—				10,058,446			153,094
Consumer:
Home equity credit line	2,232,497			—				22,675			—				2,255,172
1-4 family residential	5,097,336			—				55,536			—				5,152,872
Construction and other consumer real estate	344,024			—				6,224			—				350,248
Bankcard and other revolving plans	386,887			—				1,701			—				388,588
Other	190,085			—				433			—				190,518
Total consumer loans	8,250,829			—				86,569			—				8,337,398			44,080
FDIC-supported/PCI loans	121,968			13,095				55,378			—				190,441			2,647
Total	$	37,980,711		$	571,677			$	1,176,728		$	10,679			$	39,739,795		$	610,277
	December 31, 2013
(In thousands)	Pass			Special				Sub-			Doubtful				Total			Total
				Mention				standard							loans			allowance
Commercial:
Commercial and industrial	$	11,807,825		$	303,598			$	360,391		$	9,269			$	12,481,083
Leasing	380,268			2,050				5,611			—				387,929
Owner occupied	6,827,464			184,328				425,403			—				7,437,195
Municipal	439,432			—				9,986			—				449,418
Total commercial	19,454,989			489,976				801,391			9,269				20,755,625			$	465,145
Commercial real estate:
Construction and land development	2,107,828			15,010				59,983			—				2,182,821
Term	7,569,472			172,856				263,509			—				8,005,837
Total commercial real estate	9,677,300			187,866				323,492			—				10,188,658			213,363
Consumer:
Home equity credit line	2,111,475			—				21,645			—				2,133,120
1-4 family residential	4,668,841			—				67,824			—				4,736,665
Construction and other consumer real estate	313,881			—				11,041			—				324,922
Bankcard and other revolving plans	353,618			—				2,622			—				356,240
Other	196,770			—				1,094			—				197,864
Total consumer loans	7,644,585			—				104,226			—				7,748,811			60,865
FDIC-supported/PCI loans	232,893			22,532				94,846			—				350,271			6,918
Total	$	37,009,767		$	700,374			$	1,323,955		$	9,269			$	39,043,365		$	746,291
Impaired Loans
Loans are considered impaired when, based on current information and events, it is probable that we will be unable to collect all amounts due in accordance with the contractual terms of the loan agreement, including scheduled interest payments. For our non-purchased credit-impaired loans, if a nonaccrual loan has a balance greater than $1 million or if a loan is a troubled debt restructuring (“TDR”), including TDRs that subsequently default, we individually evaluate the loan for impairment and estimate a specific reserve for the loan for all portfolio segments under applicable accounting guidance. Smaller nonaccrual loans are pooled for ALLL estimation purposes. PCI loans in our FDIC-supported/PCI portfolio segment are included in impaired loans and are accounted for under separate accounting guidance. See subsequent discussion under Purchased Loans.
When a loan is impaired, we estimate a specific reserve for the loan based on the projected present value of the loan’s future cash flows discounted at the loan’s effective interest rate, the observable market price of the loan, or the fair value of the loan’s underlying collateral. The process of estimating future cash flows also incorporates the same determining factors discussed previously under nonaccrual loans. When we base the impairment amount on the fair value of the loan’s underlying collateral, we generally charge off the portion of the balance that is impaired, such that these loans do not have a specific reserve in the ALLL. Payments received on impaired loans that are accruing are recognized in interest income, according to the contractual loan agreement. Payments received on impaired loans that are on nonaccrual are not recognized in interest income, but are applied as a reduction to the principal outstanding. The amount of interest income recognized on a cash basis during the time the loans were impaired within the three and nine months ended September 30, 2014 and 2013 was not significant.
Information on impaired loans individually evaluated is summarized as follows, including the average recorded investment and interest income recognized for the nine months ended September 30, 2014 and 2013:
	September 30, 2014
(In thousands)	Unpaid			Recorded investment							Total				Related
	principal										recorded				allowance
	balance			with no				with			investment
				allowance				allowance
Commercial:
Commercial and industrial	$	221,275		$	26,195			$	103,919		$	130,114			$	21,692
Owner occupied	130,606			52,893				55,433			108,326				5,479
Municipal	9,164			1,076				7,609			8,685				1,816
Total commercial	361,045			80,164				166,961			247,125				28,987
Commercial real estate:
Construction and land development	53,702			14,805				29,869			44,674				2,589
Term	134,557			56,490				33,878			90,368				2,635
Total commercial real estate	188,259			71,295				63,747			135,042				5,224
Consumer:
Home equity credit line	22,105			14,048				2,997			17,045				128
1-4 family residential	85,431			37,308				33,998			71,306				8,426
Construction and other consumer real estate	4,218			1,602				1,190			2,792				197
Bankcard and other revolving plans	—			—				—			—				—
Total consumer loans	111,754			52,958				38,185			91,143				8,751
FDIC-supported/PCI loans	245,687			72,728				112,233			184,961				2,606
Total	$	906,745		$	277,145			$	381,126		$	658,271			$	45,568
	December 31, 2013
(In thousands)	Unpaid			Recorded investment							Total				Related
	principal										recorded				allowance
	balance			with no				with			investment
				allowance				allowance
Commercial:
Commercial and industrial	$	167,816		$	28,917			$	117,881		$	146,798			$	22,462
Owner occupied	151,499			50,361				88,584			138,945				13,900
Municipal	10,465			1,175				8,811			9,986				1,225
Total commercial	329,780			80,453				215,276			295,729				37,587
Commercial real estate:
Construction and land development	85,440			19,206				50,744			69,950				3,483
Term	171,826			34,258				112,330			146,588				7,981
Total commercial real estate	257,266			53,464				163,074			216,538				11,464
Consumer:
Home equity credit line	17,547			12,568				2,200			14,768				178
1-4 family residential	95,613			38,775				42,132			80,907				10,276
Construction and other consumer real estate	4,713			2,643				933			3,576				175
Bankcard and other revolving plans	726			726				—			726				—
Total consumer loans	118,599			54,712				45,265			99,977				10,629
FDIC-supported/PCI loans	404,308			83,917				228,392			312,309				6,526
Total	$	1,109,953		$	272,546			$	652,007		$	924,553			$	66,206
	Three Months Ended							Nine Months Ended
	30-Sep-14							30-Sep-14
(In thousands)	Average			Interest				Average			Interest
	recorded			income				recorded			income
	investment			recognized				investment			recognized
Commercial:
Commercial and industrial	$	176,526		$	1,232			$	168,181		$	2,812
Owner occupied	144,302			777				141,734			2,252
Municipal	8,798			—				9,343			—
Total commercial	329,626			2,009				319,258			5,064
Commercial real estate:
Construction and land development	57,408			367				59,422			1,256
Term	142,471			1,001				136,677			3,000
Total commercial real estate	199,879			1,368				196,099			4,256
Consumer:
Home equity credit line	17,217			145				16,203			411
1-4 family residential	79,523			490				78,750			1,352
Construction and other consumer real estate	3,066			40				2,953			106
Other	—			—				—			—
Total consumer loans	99,806			675				97,906			1,869
FDIC-supported/PCI loans	200,222			10,335			1	239,953			47,074			1
Total	$	829,533		$	14,387			$	853,216		$	58,263
	Three Months Ended							Nine Months Ended
	30-Sep-13							30-Sep-13
(In thousands)	Average			Interest				Average			Interest
	recorded			income				recorded			income
	investment			recognized				investment			recognized
Commercial:
Commercial and industrial	$	199,217		$	1,105			$	175,040		$	2,594
Owner occupied	217,439			915				211,225			2,810
Municipal	—			—				—			—
Total commercial	416,656			2,020				386,265			5,404
Commercial real estate:
Construction and land development	135,013			623				139,194			2,754
Term	288,980			1,969				285,307			5,571
Total commercial real estate	423,993			2,592				424,501			8,325
Consumer:
Home equity credit line	14,606			120				12,943			262
1-4 family residential	103,379			457				100,012			1,171
Construction and other consumer real estate	5,501			49				5,767			141
Other	1,751			—				1,784			—
Total consumer loans	125,237			626				120,506			1,574
FDIC-supported/PCI loans	363,293			20,004			1	404,826			79,153			1
Total	$	1,329,179		$	25,242			$	1,336,098		$	94,456
1	The balance of interest income recognized results primarily from accretion of interest income on impaired FDIC-supported/PCI loans.
Modified and Restructured Loans
Loans may be modified in the normal course of business for competitive reasons or to strengthen the Company’s position. Loan modifications and restructurings may also occur when the borrower experiences financial difficulty and needs temporary or permanent relief from the original contractual terms of the loan. These modifications are structured on a loan-by-loan basis and, depending on the circumstances, may include extended payment terms, a modified interest rate, forgiveness of principal, or other concessions. Loans that have been modified to accommodate a borrower who is experiencing financial difficulties, and for which the Company has granted a concession that it would not otherwise consider, are considered TDRs.
We consider many factors in determining whether to agree to a loan modification involving concessions, and seek a solution that will both minimize potential loss to the Company and attempt to help the borrower. We evaluate borrowers’ current and forecasted future cash flows, their ability and willingness to make current contractual or proposed modified payments, the value of the underlying collateral (if applicable), the possibility of obtaining additional security or guarantees, and the potential costs related to a repossession or foreclosure and the subsequent sale of the collateral.
TDRs are classified as either accrual or nonaccrual loans. A loan on nonaccrual and restructured as a TDR will remain on nonaccrual status until the borrower has proven the ability to perform under the modified structure for a minimum of six months, and there is evidence that such payments can and are likely to continue as agreed. Performance prior to the restructuring, or significant events that coincide with the restructuring, are included in assessing whether the borrower can meet the new terms and may result in the loan being returned to accrual at the time of restructuring or after a shorter performance period. If the borrower’s ability to meet the revised payment schedule is uncertain, the loan remains classified as a nonaccrual loan. A TDR loan that specifies an interest rate that at the time of the restructuring is greater than or equal to the rate the bank is willing to accept for a new loan with comparable risk may not be reported as a TDR or an impaired loan in the calendar years subsequent to the restructuring if it is in compliance with its modified terms.
Selected information on TDRs that includes the recorded investment on an accruing and nonaccruing basis by loan class and modification type is summarized in the following schedules:
	September 30, 2014
	Recorded investment resulting from the following modification types:
(In thousands)	Interest			Maturity				Principal			Payment				Other1			Multiple		Total
	rate below			or term				forgiveness			deferral							modification
	market			extension														types2
Accruing
Commercial:
Commercial and industrial	$	2,627		$	8,346			$	19		$	3,076			$	3,829		$	42,312	$	60,209
Owner occupied	20,615			1,314				967			1,262				11,530			17,008		52,696
Total commercial	23,242			9,660				986			4,338				15,359			59,320		112,905
Commercial real estate:
Construction and land development	—			6,322				—			—				535			16,549		23,406
Term	7,414			9,098				184			3,612				5,304			41,628		67,240
Total commercial real estate	7,414			15,420				184			3,612				5,839			58,177		90,646
Consumer:
Home equity credit line	742			71				10,706			—				274			421		12,214
1-4 family residential	2,411			384				7,286			449				1,119			35,348		46,997
Construction and other consumer real estate	290			652				44			—				—			1,246		2,232
Total consumer loans	3,443			1,107				18,036			449				1,393			37,015		61,443
Total accruing	34,099			26,187				19,206			8,399				22,591			154,512		264,994
Nonaccruing
Commercial:
Commercial and industrial	564			593				—			990				5,264			26,785		34,196
Owner occupied	2,786			857				—			913				6,165			12,171		22,892
Municipal	—			1,076				—			—				—			—		1,076
Total commercial	3,350			2,526				—			1,903				11,429			38,956		58,164
Commercial real estate:
Construction and land development	11,237			71				—			—				3,342			6,776		21,426
Term	2,953			—				—			15				291			6,321		9,580
Total commercial real estate	14,190			71				—			15				3,633			13,097		31,006
Consumer:
Home equity credit line	—			—				648			45				218			305		1,216
1-4 family residential	3,380			47				1,106			200				3,853			9,848		18,434
Construction and other consumer real estate	3			613				39			90				—			108		853
Bankcard and other revolving plans	—			—				—			—				—			—		—
Total consumer loans	3,383			660				1,793			335				4,071			10,261		20,503
Total nonaccruing	20,923			3,257				1,793			2,253				19,133			62,314		109,673
Total	$	55,022		$	29,444			$	20,999		$	10,652			$	41,724		$	216,826	$	374,667
	December 31, 2013
	Recorded investment resulting from the following modification types:
(In thousands)	Interest			Maturity				Principal			Payment				Other1			Multiple		Total
	rate below			or term				forgiveness			deferral							modification
	market			extension														types2
Accruing
Commercial:
Commercial and industrial	$	1,143		$	9,848			$	11,491		$	3,217			$	4,308		$	53,117	$	83,124
Owner occupied	22,841			1,482				987			1,291				9,659			23,576		59,836
Total commercial	23,984			11,330				12,478			4,508				13,967			76,693		142,960
Commercial real estate:
Construction and land development	1,067			8,231				—			1,063				4,119			28,295		42,775
Term	7,542			9,241				190			3,783				14,932			61,024		96,712
Total commercial real estate	8,609			17,472				190			4,846				19,051			89,319		139,487
Consumer:
Home equity credit line	743			—				9,438			—				323			332		10,836
1-4 family residential	2,628			997				6,814			643				3,083			35,869		50,034
Construction and other consumer real estate	128			329				11			—				—			1,514		1,982
Total consumer loans	3,499			1,326				16,263			643				3,406			37,715		62,852
Total accruing	36,092			30,128				28,931			9,997				36,424			203,727		345,299
Nonaccruing
Commercial:
Commercial and industrial	2,028			5,814				—			473				8,948			10,395		27,658
Owner occupied	3,020			1,489				1,043			1,593				10,482			14,927		32,554
Municipal	—			1,175				—			—				—			—		1,175
Total commercial	5,048			8,478				1,043			2,066				19,430			25,322		61,387
Commercial real estate:
Construction and land development	11,699			1,555				—			—				5,303			8,617		27,174
Term	2,126			—				—			1,943				315			14,861		19,245
Total commercial real estate	13,825			1,555				—			1,943				5,618			23,478		46,419
Consumer:
Home equity credit line	—			—				1,036			—				221			—		1,257
1-4 family residential	4,315			1,396				1,606			—				3,901			14,109		25,327
Construction and other consumer real estate	4			1,260				—			—				—			229		1,493
Bankcard and other revolving plans	—			252				—			—				—			—		252
Total consumer loans	4,319			2,908				2,642			—				4,122			14,338		28,329
Total nonaccruing	23,192			12,941				3,685			4,009				29,170			63,138		136,135
Total	$	59,284		$	43,069			$	32,616		$	14,006			$	65,594		$	266,865	$	481,434
1	Includes TDRs that resulted from other modification types including, but not limited to, a legal judgment awarded on different terms, a bankruptcy plan confirmed on different terms, a settlement that includes the delivery of collateral in exchange for debt reduction, etc.
2	Includes TDRs that resulted from a combination of any of the previous modification types.
Unused commitments to extend credit on TDRs amounted to approximately $4.4 million at September 30, 2014 and $5.6 million at December 31, 2013.
The total recorded investment of all TDRs in which interest rates were modified below market was $166.5 million at September 30, 2014 and $172.6 million at December 31, 2013. These loans are included in the previous schedule in the columns for interest rate below market and multiple modification types.
The net financial impact on interest income due to interest rate modifications below market for accruing TDRs is summarized in the following schedule:
	Three Months Ended							Nine Months Ended
	September 30,							September 30,
(In thousands)	2014			2013				2014			2013
Commercial:
Commercial and industrial	$	(440	)	$	(107	)		$	(396	)	$	(308	)
Owner occupied	(1,487		)	(1,061		)		(4,797		)	(3,158		)
Total commercial	(1,927		)	(1,168		)		(5,193		)	(3,466		)
Commercial real estate:
Construction and land development	(578		)	(237		)		(1,850		)	(755		)
Term	(1,798		)	(2,134		)		(5,224		)	(7,285		)
Total commercial real estate	(2,376		)	(2,371		)		(7,074		)	(8,040		)
Consumer:
Home equity credit line	(7		)	(24		)		(50		)	(97		)
1-4 family residential	(3,318		)	(3,700		)		(10,359		)	(11,313		)
Construction and other consumer real estate	(93		)	(106		)		(300		)	(324		)
Total consumer loans	(3,418		)	(3,830		)		(10,709		)	(11,734		)
Total decrease to interest income1	$	(7,721	)	$	(7,369	)		$	(22,976	)	$	(23,240	)
1Calculated based on the difference between the modified rate and the premodified rate applied to the recorded investment.
On an ongoing basis, we monitor the performance of all TDRs according to their restructured terms. Subsequent payment default is defined in terms of delinquency, when principal or interest payments are past due 90 days or more for commercial loans, or 60 days or more for consumer loans.
The recorded investment of accruing and nonaccruing TDRs that had a payment default during the period listed below (and are still in default at period end) and are within 12 months or less of being modified as TDRs is as follows:
	Three Months Ended										Nine Months Ended
	30-Sep-14										30-Sep-14
(In thousands)	Accruing			Nonaccruing				Total			Accruing				Nonaccruing			Total
Commercial:
Commercial and industrial	$	96		$	633			$	729		$	96			$	752		$	848
Owner occupied	—			1,025				1,025			—				1,025			1,025
Total commercial	96			1,658				1,754			96				1,777			1,873
Consumer:
Home equity credit line	—			158				158			—				201			201
1-4 family residential	—			353				353			—				353			353
Construction and other consumer real estate	—			—				—			—				39			39
Total consumer loans	—			511				511			—				593			593
Total	$	96		$	2,169			$	2,265		$	96			$	2,370		$	2,466
	Three Months Ended										Nine Months Ended
	30-Sep-13										30-Sep-13
(In thousands)	Accruing			Nonaccruing				Total			Accruing				Nonaccruing			Total
Commercial:
Commercial and industrial	$	—		$	660			$	660		$	—			$	660		$	660
Owner occupied	—			—				—			—				511			511
Total commercial	—			660				660			—				1,171			1,171
Consumer:
Home equity credit line	—			222				222			—				307			307
1-4 family residential	—			—				—			—				1,372			1,372
Construction and other consumer real estate								—										—
Total consumer loans	—			222				222			—				1,679			1,679
Total	$	—		$	882			$	882		$	—			$	2,850		$	2,850
Note: Total loans modified as TDRs during the 12 months previous to September 30, 2014 and 2013 were $97.3 million and $178.8 million, respectively.
Concentrations of Credit Risk
Credit risk is the possibility of loss from the failure of a borrower, guarantor, or another obligor to fully perform under the terms of a credit-related contract. Credit risks (whether on- or off-balance sheet) may occur when individual borrowers, groups of borrowers, or counterparties have similar economic characteristics, including industries, geographies, collateral types, sponsors, etc., and are similarly affected by changes in economic or other conditions. Credit risk also includes the loss that would be recognized subsequent to the reporting date if counterparties failed to perform as contracted. See Note 7 for a discussion of counterparty risk associated with the Company’s derivative transactions.
We perform an ongoing analysis of our loan portfolio to evaluate whether there is any significant exposure to any concentrations of credit risk. Based on this analysis, we believe that the loan portfolio is generally well diversified; however, due to the nature of the Company’s geographical footprint, there are certain significant concentrations primarily in CRE and energy-related lending. Further, we cannot guarantee that we have fully understood or mitigated all risk concentrations or correlated risks. We have adopted and adhere to concentration limits on various types of CRE lending, particularly construction and land development lending, leveraged lending, municipal lending, and energy-related lending. All of these limits are continually monitored and revised as necessary. These concentration limits, particularly the various types of CRE and real estate development loan limits, are materially lower than they were just prior to the emergence of the recent economic downturn.
Purchased Loans
Background and Accounting
We purchase loans in the ordinary course of business and account for them and the related interest income based on their performing status at the time of acquisition. PCI loans have evidence of credit deterioration at the time of acquisition and it is probable that not all contractual payments will be collected. Interest income for PCI loans is accounted for on an expected cash flow basis. Certain other loans acquired by the Company that are not credit-impaired include loans with revolving privileges and are excluded from the PCI tabular disclosures following. Interest income for these loans is accounted for on a contractual cash flow basis. Upon acquisition, in accordance with applicable accounting guidance, the acquired loans were recorded at their fair value without a corresponding ALLL. Certain acquired loans with similar characteristics such as risk exposure, type, size, etc., are grouped and accounted for in loan pools.
During 2009, CB&T and NSB acquired failed banks from the FDIC as receiver and entered into loss sharing agreements with the FDIC for the acquired loans and foreclosed assets. In general, the FDIC assumed 80% of credit losses up to a specified threshold and 95% above that threshold. The five-year agreements for commercial loans, which comprised the major portion of the covered portfolio, expired as of September 30, 2014. The 10-year agreements for single family residential loans, which amounted to approximately $18.3 million at September 30, 2014, will expire in 2019. Due to their declining balances, the “FDIC-supported/PCI loans” are included with “Loans and leases” in the Company’s balance sheet. However, they continue to be shown separately in this footnote and in other disclosures, and include both PCI and certain other acquired loans.
Outstanding Balances and Accretable Yield
The outstanding balances of all required payments and the related carrying amounts for PCI loans are as follows:
(In thousands)	September 30,			December 31,
	2014			2013
Commercial	$	116,955		$	150,191
Commercial real estate	115,320			233,720
Consumer	19,752			28,608
Outstanding balance	$	252,027		$	412,519
Carrying amount	$	184,956		$	311,797
ALLL	2,606			6,478
Carrying amount, net	$	182,350		$	305,319
At the time of acquisition of PCI loans, we determine the loan’s contractually required payments in excess of all cash flows expected to be collected as an amount that should not be accreted (nonaccretable difference). With respect to the cash flows expected to be collected, the portion representing the excess of the loan’s expected cash flows over our initial investment (accretable yield) is accreted into interest income on a level yield basis over the remaining expected life of the loan or pool of loans. The effects of estimated prepayments are considered in estimating the expected cash flows.
Certain PCI loans are not accounted for as previously described because the estimation of cash flows to be collected involves a high degree of uncertainty. Under these circumstances, the accounting guidance provides that interest income is recognized on a cash basis similar to the cost recovery methodology for nonaccrual loans. The net carrying amounts in the preceding schedule also include the amounts for these loans, which were not significant at September 30, 2014 and December 31, 2013.
Changes in the accretable yield for PCI loans were as follows:
(In thousands)	Three Months Ended							Nine Months Ended
	September 30,							September 30,
	2014			2013				2014			2013
Balance at beginning of period	$	60,834		$	104,483			$	77,528		$	134,461
Accretion	(10,279		)	(19,941		)		(46,767		)	(78,994		)
Reclassification from nonaccretable difference	2,955			7,908				17,406			31,092
Disposals and other	(38		)	3,308				5,305			9,199
Balance at end of period	$	53,472		$	95,758			$	53,472		$	95,758
Note: Amounts have been adjusted based on refinements to the original estimates of the accretable yield.
The primary drivers of reclassification to accretable yield from nonaccretable difference and increases in disposals and other resulted primarily from (1) changes in estimated cash flows, (2) unexpected payments on nonaccrual loans, and (3) recoveries on zero balance loans pools. See subsequent discussion under changes in cash flow estimates.
ALLL Determination
For all acquired loans, the ALLL is only established for credit deterioration subsequent to the date of acquisition and represents our estimate of the inherent losses in excess of the book value of acquired loans. The ALLL for acquired loans is determined without giving consideration to the amounts recoverable from the FDIC through loss sharing agreements. These amounts recoverable were separately accounted for in the FDIC indemnification asset (“IA”) and are thus presented “gross” in the balance sheet. The FDIC IA is included in other assets in the balance sheet and is discussed subsequently. The ALLL for acquired loans is included in the overall ALLL in the balance sheet. The provision for loan losses is reported net of changes in the amounts recoverable under the loss sharing agreements.
We adjusted the ALLL for acquired loans by recording a negative provision for loan losses of $2.5 million for the nine months ended September 30, 2014, and $2.0 million and $9.1 million for the three and nine months ended September 30, 2013, respectively. The provision for the three months ended September 30, 2014 was not significant. The provision is net of the ALLL reversals discussed subsequently. As separately discussed and in accordance with the loss sharing agreements, portions of the provision reductions result in a corresponding decrease of the FDIC IA. For the three and nine months ended September 30, these adjustments resulted in net charge-offs of $0.9 million and net recoveries of $0.8 million in 2014, and net recoveries of $1.9 million and $2.5 million in 2013, respectively.
Changes in the provision for loan losses and related ALLL are driven in large part by the same factors that affect the changes in reclassification from nonaccretable difference to accretable yield, as discussed under changes in cash flow estimates.
Changes in Cash Flow Estimates
Over the life of the loan or loan pool, we continue to estimate cash flows expected to be collected. We evaluate quarterly at the balance sheet date whether the estimated present values of these loans using the effective interest rates have decreased below their carrying values. If so, we record a provision for loan losses.
For increases in carrying values that resulted from better-than-expected cash flows, we use such increases first to reverse any existing ALLL. During the three and nine months ended September 30, total reversals to the ALLL were $0.8 million and $4.4 million in 2014 and $2.3 million and $13.2 million in 2013, respectively. When there is no current ALLL, we increase the amount of accretable yield on a prospective basis over the remaining life of the loan and recognize this increase in interest income. Any related decrease to the FDIC IA is recorded through a charge to other noninterest expense. Changes that increase cash flows have been due primarily to (1) the enhanced economic status of borrowers compared to original evaluations, (2) improvements in the Southern California market where the majority of these loans were originated, and (3) efforts by our credit officers and loan workout professionals to resolve problem loans.
For the three and nine months ended September 30, the impact of increased cash flow estimates recognized in the statement of income for acquired loans with no ALLL was approximately $7.7 million and $37.9 million in 2014 and $15.0 million and $62.4 million in 2013, respectively, of additional interest income; and $5.9 million and $31.2 million in 2014 and $13.0 million and $55.1 million in 2013, respectively, of additional other noninterest expense due to the reduction of the FDIC IA.
FDIC Indemnification Asset
The balance of the FDIC IA was $0.8 million at September 30, 2014 and $26.4 million at December 31, 2013. In accordance with applicable accounting guidance, the balance was reduced to a de minimus level due to the expiration at September 30, 2014 of the final commercial loan loss sharing agreement.

Derivative_Instruments_And_Hed

Derivative Instruments And Hedging Activities	9 Months Ended
	Sep. 30, 2014
Summary of Derivative Instruments [Abstract]	'
Derivative Instruments And Hedging Activities	'
		DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES
	We record all derivatives on the balance sheet at fair value. Note 10 discusses the process to estimate fair value for derivatives. The accounting for changes in the fair value of derivatives depends on the intended use of the derivative and the resulting designation. Derivatives used to hedge the exposure to changes in the fair value of an asset, liability, or firm commitment attributable to a particular risk, such as interest rate risk, are considered fair value hedges. Derivatives used to hedge the exposure to variability in expected future cash flows, or other types of forecasted transactions, are considered cash flow hedges.
	For derivatives designated as fair value hedges, the effective portion of changes in the fair value of the derivative are recognized in earnings together with changes in the fair value of the related hedged item. The net amount, if any, representing hedge ineffectiveness, is reflected in earnings. In previous periods, we used fair value hedges to manage interest rate exposure to certain long-term debt. These hedges have been terminated and their remaining balances are being amortized to earnings, as discussed subsequently.
	For derivatives designated as cash flow hedges, the effective portion of changes in the fair value of the derivative is recorded in OCI and recognized in earnings when the hedged transaction affects earnings. The ineffective portion of changes in the fair value of cash flow hedges is recognized directly in earnings.
	No derivatives have been designated for hedges of investments in foreign operations.
	We assess the effectiveness of each hedging relationship by comparing the changes in fair value or cash flows on the derivative hedging instrument with the changes in fair value or cash flows on the designated hedged item or transaction. For derivatives not designated as accounting hedges, changes in fair value are recognized in earnings.
	Our objectives in using derivatives are to add stability to interest income or expense, to modify the duration of specific assets or liabilities as we consider advisable, to manage exposure to interest rate movements or other identified risks, and/or to directly offset derivatives sold to our customers. To accomplish these objectives, we use interest rate swaps as part of our cash flow hedging strategy. These derivatives are used to hedge the variable cash flows associated with designated loans.
	Exposure to credit risk arises from the possibility of nonperformance by counterparties. These counterparties primarily consist of financial institutions that are well established and well capitalized. We control this credit risk through credit approvals, limits, pledges of collateral, and monitoring procedures. No losses on derivative instruments have occurred as a result of counterparty nonperformance. Nevertheless, the related credit risk is considered and measured when and where appropriate.
	Our derivative contracts require us to pledge collateral for derivatives that are in a net liability position at a given balance sheet date. Certain of these derivative contracts contain credit-risk-related contingent features that include the requirement to maintain a minimum debt credit rating. We may be required to pledge additional collateral if a credit-risk-related feature were triggered, such as a downgrade of our credit rating. However, in past situations, not all counterparties have demanded that additional collateral be pledged when provided for under their contracts. At September 30, 2014, the fair value of our derivative liabilities was $56.0 million, for which we were required to pledge cash collateral of approximately $40.7 million in the normal course of business. If our credit rating were downgraded one notch by either Standard & Poor’s or Moody’s at September 30, 2014, the additional amount of collateral we could be required to pledge is approximately $1.4 million. Since July 2013, as required by the Dodd-Frank Act, all newly eligible derivatives entered into are cleared through a central clearinghouse. Derivatives that are centrally cleared do not have credit-risk-related features that require additional collateral if our credit rating were downgraded.
	Interest rate swap agreements designated as cash flow hedges involve the receipt of fixed-rate amounts in exchange for variable rate payments over the life of the agreements without exchange of the underlying principal amount. Derivatives not designated as accounting hedges, including basis swap agreements, are not speculative and are used to economically manage our exposure to interest rate movements and other identified risks, but do not meet the strict hedge accounting requirements.
	Selected information with respect to notional amounts and recorded gross fair values at September 30, 2014 and December 31, 2013, and the related gain (loss) of derivative instruments for the three and nine months ended September 30, 2014 and 2013 is summarized as follows:
		September 30, 2014								December 31, 2013
		Notional			Fair value					Notional		Fair value
	(In thousands)	amount			Other		Other			amount		Other		Other
					assets		liabilities					assets		liabilities
	Derivatives designated as hedging instruments
	Asset derivatives
	Cash flow hedges:
	Interest rate swaps	$	225,000		$	271	$	670		$	100,000	$	202	$	583
	Total derivatives designated as hedging instruments	225,000			271		670			100,000		202		583
	Derivatives not designated as hedging instruments
	Interest rate swaps	14,301			—		67			65,850		420		421
	Interest rate swaps for customers 2	2,773,340			45,132		46,552			2,902,776		55,447		54,688
	Foreign exchange	281,022			9,317		8,747			751,066		9,614		8,643
	Total return swap	—			—		—			1,159,686		—		4,062
	Total derivatives not designated as hedging instruments	3,068,663			54,449		55,366			4,879,378		65,481		67,814
	Total derivatives	$	3,293,663		$	54,720	$	56,036		$	4,979,378	$	65,683	$	68,397
		Three Months Ended September 30, 2014										Nine Months Ended September 30, 2014
		Amount of derivative gain (loss) recognized/reclassified
	(In thousands)	OCI			Reclassified		Noninterest			Offset to		OCI		Reclassified		Noninterest			Offset to
					from AOCI		income			interest				from AOCI		income			interest
					to interest		(expense)			expense				to interest		(expense)			expense
					income 3									income 3
	Derivatives designated as hedging instruments
	Asset derivatives
	Cash flow hedges 1:
	Interest rate swaps	$	(845	)	$	770	$	—				$	1,681	$	1,698	$	—
		(845		)	770		—					1,681		1,698		—
	Liability derivatives
	Fair value hedges:
	Terminated swaps on long-term debt									$	496								$	1,822
	Total derivatives designated as hedging instruments	(845		)	770		—			496		1,681		1,698		—			1,822
	Derivatives not designated as hedging instruments
	Interest rate swaps						1									355
	Interest rate swaps for customers 2						1,419									493
	Foreign exchange						2,242									5,951
	Total return swap						—									(7,894		)
	Total derivatives not designated as hedging instruments						3,662									(1,095		)
	Total derivatives	$	(845	)	$	770	$	3,662		$	496	$	1,681	$	1,698	$	(1,095	)	$	1,822
		Three Months Ended September 30, 2013										Nine Months Ended September 30, 2013
		Amount of derivative gain (loss) recognized/reclassified
	(In thousands)	OCI			Reclassified		Noninterest			Offset to		OCI		Reclassified		Noninterest			Offset to
					from AOCI		income			interest				from AOCI		income			interest
					to interest		(expense)			expense				to interest		(expense)			expense
					income 3									income 3
	Derivatives designated as hedging instruments
	Asset derivatives
	Cash flow hedges 1:
	Interest rate swaps	$	414		$	97	$	—				$	408	$	2,479	$	—
		414			97		—					408		2,479		—
	Liability derivatives
	Fair value hedges:
	Terminated swaps on long-term debt									$	796								$	2,342
Total derivatives designated as hedging instruments	414			97		—			796		408		2,479		—			2,342
Derivatives not designated as hedging instruments
Interest rate swaps						765									678
Interest rate swaps for customers 2						883									6,631
Futures contracts						2									2
Foreign exchange						(536		)							7,072
Total return swap						(5,342		)							(16,350		)
Total derivatives not designated as hedging instruments						(4,228		)							(1,967		)
Total derivatives	$	414		$	97	$	(4,228	)	$	796	$	408	$	2,479	$	(1,967	)	$	2,342
Note: These schedules are not intended to present at any given time the Company’s long/short position with respect to its derivative contracts.
1	Amounts recognized in OCI and reclassified from accumulated OCI (“AOCI”) represent the effective portion of the derivative gain (loss).
2	Amounts include both the customer swaps and the offsetting derivative contracts.
3	Amounts for the three and nine months ended September 30, of $0.8 million and $1.7 million in 2014, and $0.1 million and $2.5 million in 2013, respectively, are the amounts of reclassification to earnings from AOCI presented in Note 8.
At September 30, the fair values of derivative assets and liabilities were reduced by net credit valuation adjustments of $1.7 million and $0.3 million in 2014, and $2.4 million and $2.0 million in 2013, respectively. These adjustments are required to reflect both our own nonperformance risk and the respective counterparty’s nonperformance risk.
We offer interest rate swaps to our customers to assist them in managing their exposure to changing interest rates. Upon issuance, all of these customer swaps are immediately “hedged” by offsetting derivative contracts, such that the Company minimizes its net interest rate risk exposure resulting from such transactions. Fee income from customer swaps is included in other service charges, commissions and fees. As with other derivative instruments, we have credit risk for any nonperformance by counterparties.
The remaining balances of any derivative instruments terminated prior to maturity, including amounts in AOCI for swap hedges, are accreted or amortized to interest income or expense over the period corresponding to their previously stated maturity dates.
Amounts in AOCI are reclassified to interest income as interest is earned on variable rate loans and as amounts for terminated hedges are accreted or amortized to earnings. For the 12 months following September 30, 2014, we estimate that an additional $2.9 million will be reclassified.
Total Return Swap
Effective April 28, 2014, we canceled the total return swap and related interest rate swaps (“TRS”) relating to a portfolio of $1.16 billion notional amount of our bank and insurance trust preferred CDOs. Prior to cancellation of the TRS, the actual portfolio par balance had been reduced to $545 million due to sales, paydowns and payoffs. Following the cancellation, the TRS derivative liability was extinguished and the Company’s regulatory risk weighted assets increased by approximately $0.9 billion.

Debt_And_Shareholders_Equity

Debt And Shareholders' Equity	9 Months Ended
	Sep. 30, 2014
Capitalization, Long-term Debt and Equity [Abstract]	'
Debt And Shareholders' Equity	'
	DEBT AND SHAREHOLDERS’ EQUITY
	Long-term debt is summarized as follows:
	(In thousands)		30-Sep-14				31-Dec-13
	Junior subordinated debentures related to trust preferred securities		$	168,043			$	168,043
	Convertible subordinated notes		127,679				184,147
	Subordinated notes		336,250				443,231
	Senior notes		458,798				1,454,779
	FHLB advances		22,302				22,736
	Capital lease obligations and other		605				639
			$	1,113,677			$	2,273,575
	The preceding amounts represent the par value of the debt adjusted for any unamortized premium or discount or other basis adjustments, including the value of associated hedges.
	Debt Redemptions
	Senior Notes
	During the three and nine months ended September 30, 2014, we redeemed a total of $760 million and $1,015 million par amount of long-term senior notes as follows:
	•	$500 million – purchased on September 29, 2014 through tender offers approximating 56% of our 4.0% and 4.5% senior notes due in June 2016, March 2017, and June 2023; debt extinguishment costs of approximately $44 million consisted of $34 million of early tender premiums, $9 million of unamortized discount and debt issuance costs, and $1 million of commissions and fees;
	•	$242 million, 7.75% – redeemed at maturity on September 23, 2014;
	•	$18 million, 3.05% – redeemed on August 15, 2014 at their initial call date; and
	•	$255 million, 2.75%-5.50% – redeemed during the first and second quarters at maturity ($50 million) or at their initial call dates ($205 million).
	On September 18, 2014, we gave notice that we would redeem in full $27 million of 4.15% long-term senior notes on their initial call date of November 15, 2014.
	Subordinated Notes
	During the three and nine months ended September 30, 2014, we redeemed the entire $75 million of Amegy’s subordinated notes 3mL + 1.25% at their maturity on September 22, 2014. During the second quarter, we redeemed at maturity the entire 5.65% subordinated notes ($30 million par amount) and 5.65% convertible subordinated notes ($76 million par amount).
	Common Stock Issuance
	On July 28, 2014, we issued $525 million of common stock, which consisted of approximately 17.6 million shares at a price of $29.80 per share. Net of commissions and fees, this issuance added approximately $516 million to common stock. We increased the issuance amount following the Federal Reserve’s announcement on July 25, 2014 that it had not objected to our resubmitted 2014 Capital Plan, which included the issuance of $400 million of new common equity in the third quarter of 2014.
	Accumulated Other Comprehensive Income
	Changes in AOCI by component are as follows:
	(In thousands)		Net unrealized gains (losses) on investment securities						Net unrealized gains (losses) on derivatives and other					Pension and post-retirement			Total
	Nine Months Ended September 30, 2014
	Balance at December 31, 2013			$	(168,805	)				$	1,556			$	(24,852	)	$	(192,101	)
	Other comprehensive income before reclassifications, net of tax			100,723						678				—			101,401
	Amounts reclassified from AOCI, net of tax			(19,206		)				(1,021		)		—			(20,227		)
	Other comprehensive income (loss)			81,517						(343		)		—			81,174
	Balance at September 30, 2014			$	(87,288	)				$	1,213			$	(24,852	)	$	(110,927	)
	Income tax expense (benefit) included in other comprehensive income (loss)			$	61,714					$	(214	)		$	—		$	61,500
	Nine Months Ended September 30, 2013
	Balance at December 31, 2012			$	(403,893	)				$	8,071			$	(50,335	)	$	(446,157	)
	Other comprehensive income (loss) before reclassifications, net of tax			53,896						(3,474		)		—			50,422
	Amounts reclassified from AOCI, net of tax			12,715						(1,483		)		—			11,232
	Other comprehensive income (loss)			66,611						(4,957		)		—			61,654
	Balance at September 30, 2013			$	(337,282	)				$	3,114			$	(50,335	)	$	(384,503	)
	Income tax expense (benefit) included in other comprehensive income (loss)			$	40,354					$	(3,123	)		$	—		$	37,231
			Amounts reclassified from AOCI 1														Statement of income (SI) Balance sheet
	(In thousands)		Three Months Ended								Nine Months Ended						(BS)
			September 30,								September 30,
	Details about AOCI components		2014				2013				2014			2013					Affected line item
	Net realized gains (losses) on investment securities		$	(13,901	)		$	1,580			$	22,039		$	3,726		SI		Fixed income securities gains (losses), net
	Income tax expense (benefit)		(6,015		)		604				1,981			1,425
			(7,886		)		976				20,058			2,301
	Net unrealized losses on investment		—				(9,067		)		(27		)	(22,999		)	SI		Net impairment losses on investment securities
	securities
	Income tax benefit		—				(3,479		)		(10		)	(8,863		)
			—				(5,588		)		(17		)	(14,136		)
	Accretion of securities with noncredit-related impairment losses not expected to be sold		(467		)		(496		)		(1,411		)	(1,477		)	BS		Investment securities, held-to-maturity
	Deferred income taxes		191				211				576			597			BS		Other assets
			$	(8,162	)		$	(4,897	)		$	19,206		$	(12,715	)
	Net unrealized gains on derivative instruments		$	770			$	97			$	1,698		$	2,479		SI		Interest and fees on loans
	Income tax expense		307				40				677			996
			$	463			$	57			$	1,021		$	1,483
	1 Negative reclassification amounts indicate decreases to earnings in the statement of income and increases to balance sheet assets. The opposite applies to positive reclassification amounts.
	Basel III Capital Framework
	The Federal Reserve has published final rules establishing a new capital framework for U.S. banking organizations. These new rules implement the Basel Committee’s December 2010 framework, commonly referred to as Basel III, which will become effective for the Company on January 1, 2015, with the fully phased-in requirements becoming effective in 2018.
	Among other things, the new rules revise capital adequacy guidelines and the regulatory framework for prompt corrective action, and they modify specified quantitative measures of our assets, liabilities, and capital. The impact of these new rules will require the Company to maintain capital in excess of current “well-capitalized” regulatory standards, and in excess of historical levels.

Income_Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2014
Income Tax Disclosure [Abstract]	'
Income Taxes	'
		INCOME TAXES
	The income tax expense rate for the three and nine months ended September 30, 2014 and 2013 was lower than the blended statutory rate of 38.25% primarily because of the nontaxability of certain income items. However, the effective tax rate for the three and nine months ended September 30, 2014 was higher than the comparable periods in 2013 primarily because of a slight decrease in the amount of nontaxable items relative to pretax income and an accrual of $2.5 million of interest expense at September 30, 2014 to settle certain income tax examinations.
	Net deferred tax assets were approximately $219 million at September 30, 2014 and $304 million at December 31, 2013. We evaluate net deferred tax assets on a regular basis to determine whether an additional valuation allowance is required. Based on this evaluation, and considering the weight of the positive evidence compared to the negative evidence, we have concluded that an additional valuation allowance is not required as of September 30, 2014.

Fair_Value

Fair Value	9 Months Ended
	Sep. 30, 2014
Fair Value Disclosures [Abstract]	'
Fair Value	'
	Fair Value Measurement
	Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. To measure fair value, a hierarchy has been established that requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs. This hierarchy uses three levels of inputs to measure the fair value of assets and liabilities as follows:
	Level 1 – Quoted prices in active markets for identical assets or liabilities in active markets that the Company has the ability to access;
	Level 2 – Observable inputs other than Level 1 including quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in less active markets, observable inputs other than quoted prices that are used in the valuation of an asset or liability, and inputs that are derived principally from or corroborated by observable market data by correlation or other means; and
	Level 3 – Unobservable inputs supported by little or no market activity for financial instruments whose value is determined by pricing models, discounted cash flow methodologies, or similar techniques, as well as instruments for which the determination of fair value requires significant management judgment or estimation.
	The level in the fair value hierarchy within which the fair value measurement is classified is determined based on the lowest level input that is significant to the fair value measure in its entirety. Market activity is presumed to be orderly in the absence of evidence of forced or disorderly sales, although such sales may still be indicative of fair value. Applicable accounting guidance precludes the use of blockage factors or liquidity adjustments due to the quantity of securities held by an entity.
	We use fair value to measure certain assets and liabilities on a recurring basis when fair value is the primary measure for accounting. Fair value is used on a nonrecurring basis to measure certain assets when adjusting carrying values, such as the application of lower of cost or fair value accounting, including recognition of impairment on assets. Fair value is also used when providing required disclosures for certain financial instruments.
	Fair Value Policies and Procedures
	We have various policies, processes and controls in place to ensure that fair values are reasonably developed, reviewed and approved for use. These include a Securities Valuation and Securitization Oversight Committee (“SOC”) comprised of executive management appointed by the Board of Directors. The SOC reviews and approves on a quarterly basis the key components of fair value estimation, including critical valuation assumptions for Level 3 modeling. Attribution analyses are completed when significant changes occur between quarters. The SOC also requires quarterly back testing of certain significant assumptions. A Model Risk Management Group conducts model validations, including the internal model, and sets policies and procedures for revalidation, including the timing of revalidation.
	Third Party Service Providers
	We use a third party pricing service to provide pricing for approximately 89% of our AFS Level 2 securities, and an internal model to estimate fair value for approximately 97% of our AFS Level 3 securities. Fair values for the remaining AFS Level 2 and Level 3 securities generally use standard form discounted cash flow modeling with certain inputs corroborated by market data.
	For Level 2 securities, the third party pricing service provides documentation on an ongoing basis that presents market corroborative data, including detail pricing information and market reference data. The documentation includes benchmark yields, reported trades, broker/dealer quotes, issuer spreads, two-sided markets, benchmark securities, bids, offers, and reference data, including information from the vendor trading platform. We review, test and validate this information as appropriate. Absent observable trade data, we do not adjust prices from our third party sources.
	For Level 3 securities, we review and evaluate on a quarterly basis the relevant modeling assumptions. These include PDs, loss given default rates, over-collateralization levels, and rating transition probability matrices from ratings agencies. In addition, we also compare the results and valuation with our information about market trends and trading data. This includes information regarding trading prices, implied discounts, outlier information, valuation assumptions, etc.
	The following describes the hierarchy designations, valuation methodologies, and key inputs to measure fair value on a recurring basis for designated financial instruments:
	Available-for-Sale and Trading
	U.S. Treasury, Agencies and Corporations
	U.S. Treasury securities are measured under Level 1 using quoted market prices. U.S. agencies and corporations are measured under Level 2 generally using the previously-discussed third party pricing service.
	Municipal Securities
	Municipal securities are measured under Level 2 using the third party pricing service, or under Level 3 using a discounted cash flow approach. Valuation inputs include BBB and Baa municipal curves, as well as FHLB and London Interbank Offered Rate (“LIBOR”) swap curves. Additional valuation inputs include internal credit scoring, and security- and client-type groupings.
	Asset-Backed Securities: Trust Preferred Collateralized Debt Obligations
	The majority of the CDO portfolio is measured under Level 3 primarily with the internal model using an income-based cash flow modeling approach incorporating several methodologies. The Company inputs its own key valuation assumptions:
	Trust preferred – banks and insurance – We primarily use an internal model for our bank and insurance CDO securities. Our “ratio-based approach” utilizes a statistical regression of regulatory ratios we have identified as predictive of future bank failures and bank holding company defaults to create a credit-specific PD for each bank issuer. The approach generally references trailing quarter regulatory data, financial ratios and macroeconomic factors.
	The PDs used depend on whether the collateral is performing or deferring. Deferring PDs increase, all else being equal, as the deferral ages and approaches the end of its allowable five-year deferral period. The internal model includes the expectation that deferrals that do not default will pay their contractually required back interest and return to a current status at the end of five years. Estimates of loss for the individual pieces of underlying collateral are aggregated to arrive at a pool-level loss rate for each CDO. These loss assumptions are applied to the CDO’s structure to generate cash flow projections for each tranche of the CDO.
	We utilize a present value technique to identify both the OTTI present in the CDO tranches and to estimate fair value. To estimate fair value, we discount the credit-adjusted cash flows of each CDO tranche at a tranche-specific discount rate derived from trading data and a measure of the credit risk in the CDO tranche. Because these securities are not traded on exchanges and trading prices are not posted on the TRACE® system (Trade Reporting and Compliance Engine®), we seek information from market participants to obtain trade price information.
	Trading data is generally limited and may include trades of tranches within our same CDO. We use this limited trade data along with our modeled expected credit adjusted cash flows to determine a relationship between the market required yield and the downside variability of the returns of each CDO security. The loss/downside variability for this purpose is a measure of the downside variability of cash flows from the mean estimate of cash flow.
	During the first quarter of 2014, two insurance CDO securities and two single-name bank trust preferred securities, were transferred from Level 3 to Level 2 primarily due to the increasing ability to utilize fair value inputs corroborated by observed market data. The securities remain at Level 2 at September 30, 2014 as shown in the Level 3 reconciliation schedules following. The securities constitute the Company’s entire holding of each asset class.
	Trust preferred – REITS, Other – During the first quarter of 2014, substantially all of these securities were sold, as discussed in Note 5.
	Auction Rate Securities
	Auction rate securities are measured under Level 3 primarily using valuation inputs that include AAA corporate bond yield curves, municipal yield curves, credit ratings and leverage of each closed-end fund, market yields for commercial paper, and any observable trade commentaries.
	Bank-Owned Life Insurance
	Bank-owned life insurance is measured under Level 2 according to cash surrender values (“CSVs”) of the insurance policies that are provided by a third party service. Nearly all CSVs are computed based on valuations and earnings of the underlying assets in the insurance companies’ general accounts. The underlying investments include predominantly fixed income securities consisting of investment grade corporate bonds and various types of mortgage instruments. Average duration ranges from five to eight years. Management regularly reviews investment performance, including concentrations of investments and regulatory restrictions.
	Private Equity Investments
	Private equity investments are measured under Level 2 or Level 3. The Equity Investments Committee, consisting of executives familiar with the investments, reviews periodic financial information, including audited financial statements when available. The amount of unfunded commitments is disclosed in Note 11. Certain restrictions apply for the redemption of these investments and certain investments are prohibited by the Volcker Rule. See discussions in Notes 5 and 11.
	Private equity investments under Level 2 include partnerships that invest in certain financial services and real estate companies, some of which are publicly traded. Fair values are determined from net asset values, or their equivalents, provided by the partnerships. These fair values are determined on the last business day of the month using values from the primary exchange. In the case of illiquid or nontraded assets, the partnerships obtain fair values from independent sources.
	Private equity investments are measured under Level 3 primarily using current and projected financial performance, recent financing activities, economic and market conditions, market comparables, market liquidity, sales restrictions, and other factors.
	Agriculture Loan Servicing
	This asset results from our servicing of agriculture loans approved by the Federal Agricultural Mortgage Corporation (“FAMC,” or “Farmer Mac”) and funded by them. We provide this servicing under an agreement with Farmer Mac for loans they own. The asset’s fair value represents our projection of the present value of future cash flows measured under Level 3 using discounted cash flow methodologies.
	Interest-Only Strips
	Interest-only strips are created as a by-product of the securitization process. When the guaranteed portions of Small Business Administration (“SBA”) 7(a) loans are pooled, interest-only strips may be created in the pooling process. The asset’s fair value represents our projection of the present value of future cash flows measured under Level 3 using discounted cash flow methodologies.
	Deferred Compensation Plan Assets and Obligations
	Invested assets in the deferred compensation plan consists of shares of registered investment companies. These mutual funds are valued under Level 1 at quoted market prices, which represents the net asset value of shares held by the plan at the end of the period.
	Derivatives
	Derivatives are measured according to their classification as either exchange-traded or over-the-counter (“OTC”). Exchange-traded derivatives consist of forward currency exchange contracts measured under Level 1 because they are traded in active markets. OTC derivatives, including those for customers, consist of interest rate swaps and options. These derivatives are measured under Level 2 using third party services. Observable market inputs include yield curves (the LIBOR swap curve and relevant overnight index swap curves), foreign exchange rates, commodity prices, option volatilities, counterparty credit risk, and other related data. Credit valuation adjustments are required to reflect nonperformance risk for both the Company and the respective counterparty. These adjustments are determined generally by applying a credit spread to the total expected exposure of the derivative.
	Securities Sold, Not Yet Purchased
	Securities sold, not yet purchased, are measured under Level 1 using quoted market prices. If not available, quoted prices under Level 2 for similar securities are used.
	Quantitative Disclosure of Fair Value Measurements
	Assets and liabilities measured at fair value by class on a recurring basis are summarized as follows:
	(In thousands)	September 30, 2014
		Level 1			Level 2			Level 3				Total
	ASSETS
	Investment securities:
	Available-for-sale:
	U.S. Treasury, agencies and corporations				$	2,608,410						$	2,608,410
	Municipal securities				178,433			$	9,928			188,361
	Asset-backed securities:
	Trust preferred – banks and insurance				63,033			525,470				588,503
	Auction rate							5,714				5,714
	Other				761			27				788
	Mutual funds and stock	$	166,158		5,474							171,632
		166,158			2,856,111			541,139				3,563,408
	Trading account				55,419							55,419
	Other noninterest-bearing investments:
	Bank-owned life insurance				475,304							475,304
Private equity							83,885				83,885
Other assets:
Agriculture loan servicing and interest-only strips							11,918				11,918
Deferred compensation plan assets	88,273										88,273
Derivatives:
Interest rate related and other				271							271
Interest rate swaps for customers				45,132							45,132
Foreign currency exchange contracts	9,317										9,317
	9,317			45,403							54,720
	$	263,748		$	3,432,237		$	636,942			$	4,332,927
LIABILITIES
Securities sold, not yet purchased	$	26,251									$	26,251
Other liabilities:
Deferred compensation plan obligations	88,273										88,273
Derivatives:
Interest rate related and other				$	734						734
Interest rate swaps for customers				46,552							46,552
Foreign currency exchange contracts	8,747										8,747
	8,747			47,286							56,033
Other							$	67			67
	$	123,271		$	47,286		$	67			$	170,624
(In thousands)	December 31, 2013
	Level 1			Level 2			Level 3				Total
ASSETS
Investment securities:
Available-for-sale:
U.S. Treasury, agencies and corporations				$	2,059,105						$	2,059,105
Municipal securities				55,602			$	10,662			66,264
Asset-backed securities:
Trust preferred – banks and insurance							1,238,820				1,238,820
Trust preferred – real estate investment trusts							22,996				22,996
Auction rate							6,599				6,599
Other				2,099			25,800				27,899
Mutual funds and stock	$	259,750		20,453							280,203
	259,750			2,137,259			1,304,877				3,701,886
Trading account				34,559							34,559
Other noninterest-bearing investments:
Bank-owned life insurance				466,428							466,428
Private equity				4,822			82,410				87,232
Other assets:
Agriculture loan servicing and interest-only strips							8,852				8,852
Deferred compensation plan assets	86,184										86,184
Derivatives:
Interest rate related and other				1,100							1,100
Interest rate swaps for customers				55,447							55,447
Foreign currency exchange contracts	9,614										9,614
	9,614			56,547							66,161
	$	355,548		$	2,699,615		$	1,396,139			$	4,451,302
LIABILITIES
Securities sold, not yet purchased	$	73,606									$	73,606
Other liabilities:
Deferred compensation plan obligations	86,184										86,184
Derivatives:
Interest rate related and other				$	1,004						1,004
Interest rate swaps for customers				54,688							54,688
Foreign currency exchange contracts	8,643										8,643
Total return swap							$	4,062			4,062
	8,643			55,692			4,062				68,397
Other							241				241
	$	168,433		$	55,692		$	4,303			$	228,428
The fair value of the Level 3 bank and insurance CDO portfolio would generally be adversely affected by significant increases in the constant default rate (“CDR”) for performing collateral, the loss percentage expected from deferring collateral, and the discount rate used. The fair value of the portfolio would generally be positively affected by increases in interest rates and prepayment rates. For a specific tranche within a CDO, the directionality of the fair value change for a given assumption change may differ depending on the seniority level of the tranche. For example, faster prepayment may increase the fair value of a senior most tranche of a CDO while decreasing the fair value of a more junior tranche.
Reconciliation of Level 3 Fair Value Measurements
The following reconciles the beginning and ending balances of assets and liabilities that are measured at fair value by class on a recurring basis using Level 3 inputs:
	Level 3 Instruments
	Three Months Ended September 30, 2014
(In thousands)	Municipal			Trust			Trust				Auction				Other			Private			Ag loan svcg and int-only strips			Derivatives
	securities			preferred – banks and insurance			preferred				rate				asset-backed			equity						and other
							– REIT											investments						liabilities
Balance at June 30, 2014	$	10,038		$	685,805		$	—			$	6,578			$	28		$	82,256		$	11,461		$	(132	)
Net gains (losses) included in:
Statement of income:
Accretion of purchase discount on securities available-for-sale	9			480							1
Dividends and other investment income																		1,451
Equity securities losses, net																		(3,684		)
Fixed income securities gains (losses), net	2			(13,956		)					37
Other noninterest income																					139
Other noninterest expense																								65
Other comprehensive income	4			45,521							48
Purchases																		4,438			531
Sales				(155,869		)					(950		)		(1		)	(476		)
Redemptions and paydowns	(125		)	(36,511		)												(100		)	(213		)
Balance at September 30, 2014	$	9,928		$	525,470		$	—			$	5,714			$	27		$	83,885		$	11,918		$	(67	)
	Level 3 Instruments
	Nine Months Ended September 30, 2014
(In thousands)	Municipal			Trust			Trust				Auction				Other			Private			Ag loan svcg and int-only strips			Derivatives
	securities			preferred – banks and insurance			preferred				rate				asset-backed			equity						and other
							– REIT											investments						liabilities
Balance at December 31, 2013	$	10,662		$	1,238,820		$	22,996			$	6,599			$	25,800		$	82,410		$	8,852		$	(4,303	)
Net gains (losses) included in:
Statement of income:
Accretion of purchase discount on securities available-for-sale	27			1,833							3
Dividends and other investment income (loss)																		(1,296		)
Fair value and nonhedge derivative loss																								(7,894		)
Equity securities losses, net																		(3,100		)
Fixed income securities gains, net	18			9,009			1,399				37				10,917
Other noninterest income																					665
Other noninterest expense																								174
Other comprehensive income (loss)	(178		)	146,861							25				(15		)
Purchases																		12,898			2,987
Sales				(702,257		)	(24,395		)		(950		)		(36,670		)	(1,315		)
Redemptions and paydowns	(601		)	(99,603		)									(5		)	(5,712		)	(586		)	11,956
Transfers to Level 2				(69,193		)
Balance at September 30, 2014	$	9,928		$	525,470		$	—			$	5,714			$	27		$	83,885		$	11,918		$	(67	)
	Level 3 Instruments
	Three Months Ended September 30, 2013
(In thousands)	Municipal			Trust			Trust				Auction				Other			Private			Ag loan svcg and int-only strips			Derivatives
	securities			preferred – banks and insurance			preferred – REIT				rate				asset-backed			equity						and other
																		investments						liabilities
Balance at June 30, 2013	$	13,544		$	1,030,293		$	18,499			$	6,554			$	17,324		$	75,517		$	8,338		$	(5,118	)
Net gains (losses) included in:
Statement of income:
Accretion of purchase discount on securities available-for-sale	10			783			64				1				50
Dividends and other investment income																		306
Fair value and nonhedge derivative loss																								(5,342		)
Fixed income securities gains, net	2			1,494											10
Net impairment losses on investment securities				(7,787		)	(1,112		)						(168		)
Other noninterest income																					578
Other noninterest expense																								92
Other comprehensive income	64			(3,934		)	2,067				70				(476		)
Purchases																		2,064
Sales																		(249		)
Redemptions and paydowns	(100		)	(18,954		)									(3,193		)	(82		)	(341		)	5,932
Balance at September 30, 2013	$	13,520		$	1,001,895		$	19,518			$	6,625			$	13,547		$	77,556		$	8,575		$	(4,436	)
	Level 3 Instruments
	Nine Months Ended September 30, 2013
(In thousands)	Municipal			Trust			Trust				Auction				Other			Private			Ag loan svcg and int-only strips			Derivatives
	securities			preferred – banks and insurance			preferred – REIT				rate				asset-backed			equity						and other
																		investments						liabilities
Balance at December 31, 2012	$	16,551		$	949,271		$	16,403			$	6,515			$	15,160		$	64,223		$	8,334		$	(5,251	)
Net gains (losses) included in:
Statement of income:
Accretion of purchase discount on securities available-for-sale	31			2,395			190				2				64
Dividends and other investment income																		5,455
Fair value and nonhedge derivative loss																								(16,350		)
Equity securities gains, net																		3,739
Fixed income securities gains, net	38			3,530											54
Net impairment losses on investment securities				(21,548		)	(1,282		)						(168		)
Other noninterest income																					1,081
Other noninterest expense																								(73		)
Other comprehensive income	986			127,028			4,207				108				4,147
Purchases																		5,905
Sales				(7,015		)												(1,369		)
Redemptions and paydowns	(4,086		)	(51,766		)									(5,710		)	(397		)	(840		)	17,238
Balance at September 30, 2013	$	13,520		$	1,001,895		$	19,518			$	6,625			$	13,547		$	77,556		$	8,575		$	(4,436	)
The preceding reconciling amounts using Level 3 inputs include the following realized amounts in the statement of income:
(In thousands)	Three Months Ended September 30,						Nine Months Ended September 30,
	2014			2013			2014				2013
Dividends and other investment income (loss)	$	—		$	—		$	34			$	(45	)
Fixed income securities gains (losses), net	(13,917		)	1,506			21,380				3,622
Except as previously discussed, no other transfers of assets or liabilities occurred among Levels 1, 2 or 3 for the three and nine months ended September 30, 2014 and 2013. Transfers are considered to have occurred as of the end of the reporting period.
Following is a summary of quantitative information relating to the principal valuation techniques and significant unobservable inputs for Level 3 instruments measured on a recurring and nonrecurring basis:
	Level 3 Instruments
	Quantitative information at September 30, 2014
(Dollar amounts in thousands)	Fair value			Principal valuation techniques		Significant unobservable inputs	Range of inputs
							(% annually)
Asset-backed securities:
Trust preferred – predominantly banks	$	584,104		Discounted cash flow		Constant prepayment rate	until 2016 – 4.0% to 26.0%
				Market comparables
							2016 to maturity – 3.0%
						Constant default rate	yr 1 – 0.3% to 2.47%
							yrs 2-5 – 0.48% to 0.74%
							yrs 6 to maturity – 0.60% to 0.65%
						Loss given default	100%
						Loss given deferral	35.43% to 100%
						Discount rate	4.5% to 5.1%
						(spread over forward LIBOR)
	Level 3 Instruments
	Quantitative information at December 31, 2013
(Dollar amounts in thousands)	Fair value			Principal valuation techniques		Significant unobservable inputs	Range of inputs
							(% annually)
Asset-backed securities:
Trust preferred – predominantly banks	$	921,819		Discounted cash flow		Constant prepayment rate	until 2016 – 5.50% to 20.73%
				Market comparables
							2016 to maturity – 3.0%
						Constant default rate	yr 1 – 0.30% to 1.94%
							yrs 2-5 – 0.49% to 1.14%
							yrs 6 to maturity – 0.58% to 0.65%
						Loss given default	100%
						Loss given deferral	14.39% to 100%
						Discount rate	5.6% to 7.7%
						(spread over forward LIBOR)
Trust preferred – predominantly insurance	346,390			Discounted cash flow		Constant prepayment rate	until maturity – 5.0%
				Market comparables
						Constant default rate	yr 1 – 0.38% to 1.03%
							yrs 2-5 – 0.53% to 0.89%
							yrs 6 to maturity – 0.50% to 0.55%
						Loss given default	100%
						Loss given deferral	2.18% to 30.13%
						Discount rate	3.72% to 6.49%
						(spread over forward LIBOR)
Trust preferred – individual banks	22,324			Market comparables		Yield	6.6% to 7.8%
						Price	81.25% to 109.6%
Trust preferred – real estate investment trust	22,996			Discounted cash flow		Constant prepayment rate	until maturity – 0.0%
				Market comparables
						Constant default rate	yr 1 – 4.1% to 10.6%
							yrs 2-3 – 4.6% to 5.5%
							yrs 4-6 – 1.0%
							yrs 7 to maturity – 0.50%
						Loss given default	60% to 100%
						Discount rate	5.5% to 15%
						(spread over forward LIBOR)
Other (predominantly ABS CDOs)	25,800			Discounted cash flow		Constant default rate	0.01% to 100%
						Loss given default	70% to 92%
						Discount rate	9% to 22%
						(spread over forward LIBOR)
Nonrecurring Fair Value Measurements
Included in the balance sheet amounts are the following amounts of assets that had fair value changes during the year-to-date period measured on a nonrecurring basis.
(In thousands)	Fair value at September 30, 2014														Fair value at December 31, 2013
	Level 1			Level 2			Level 3				Total				Level 1			Level 2			Level 3			Total
ASSETS
HTM securities adjusted for OTTI	$	—		$	—		$	—			$	—			$	—		$	—		$	8,483		$	8,483
Private equity investments, carried at cost	—			—			3,419				3,419				—			—			13,270			13,270
Impaired loans	—			26,444			—				26,444				—			11,765			—			11,765
Other real estate owned	—			7,398			—				7,398				—			24,684			—			24,684
	$	—		$	33,842		$	3,419			$	37,261			$	—		$	36,449		$	21,753		$	58,202
The previous fair values may not be current as of the dates indicated, but rather as of the date the fair value change occurred, such as a charge for impairment. Accordingly, carrying values may not equal current fair value.
	Gains (losses) from fair value changes
(In thousands)	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2014			2013			2014				2013
ASSETS
HTM securities adjusted for OTTI	$	—		$	—		$	—			$	(403	)
Private equity investments, carried at cost	(339		)	(2,826		)	(471		)		(4,254		)
Impaired loans	(815		)	(35		)	(3,097		)		(1,463		)
Other real estate owned	(3,088		)	(1,749		)	(6,259		)		(8,217		)
	$	(4,242	)	$	(4,610	)	$	(9,827	)		$	(14,337	)
During the three and nine months ended September 30, we recognized net gains of $1.9 million and $4.4 million in 2014, and $3.5 million and $9.8 million in 2013 from the sale of other real estate owned (“OREO”) properties that had a carrying value at the time of sale of approximately $30.7 million and $61.1 million during the nine months ended September 30, 2014 and 2013, respectively. Previous to their sale, we recognized impairment on these properties of $0.5 million for the nine months ended September 30, 2014, and $0.2 million and $0.6 million for the three and nine months ended September 30, 2013, respectively. Impairment for the three months ended September 30, 2014 was not significant.
HTM securities adjusted for OTTI were measured at fair value using the same methodology for trust preferred CDO securities.
Private equity investments carried at cost were measured at fair value for impairment purposes according to the methodology previously discussed for these investments. Amounts of private equity investments carried at cost were $46.8 million at September 30, 2014 and $53.6 million at December 31, 2013. Amounts of other noninterest-bearing investments carried at cost were $249.8 million at September 30, 2014 and $248.4 million at December 31, 2013, which were comprised of Federal Reserve, Federal Home Loan Bank, and Farmer Mac stock.
Impaired (or nonperforming) loans that are collateral-dependent were measured at fair value based on the fair value of the collateral. OREO was measured at fair value at the lower of cost or fair value based on property appraisals at the time the property is recorded in OREO and as appropriate thereafter.
Measurement of fair value for collateral-dependent loans and OREO was based on third party appraisals that utilize one or more valuation techniques (income, market and/or cost approaches). Any adjustments to calculated fair value were made based on recently completed and validated third party appraisals, third party appraisal services, automated valuation services, or our informed judgment. Evaluations were made to determine that the appraisal process met the relevant concepts and requirements of applicable accounting guidance.
Automated valuation services may be used primarily for residential properties when values from any of the previous methods were not available within 90 days of the balance sheet date. These services use models based on market, economic, and demographic values. The use of these models has only occurred in a very few instances and the related property valuations have not been significant to consider disclosure under Level 3 rather than Level 2.
Impaired loans not collateral-dependent were measured at fair valued based on the present value of future cash flows discounted at the expected coupon rates over the lives of the loans. Because the loans were not discounted at market interest rates, the valuations do not represent fair value and have been excluded from the nonrecurring fair value balance in the preceding schedules.
Fair Value of Certain Financial Instruments
Following is a summary of the carrying values and estimated fair values of certain financial instruments:
	September 30, 2014								December 31, 2013
(In thousands)	Carrying			Estimated			Level		Carrying				Estimated				Level
	value			fair value					value				fair value
Financial assets:
HTM investment securities	$	609,758		$	642,529		3		$	588,981			$	609,547			3
Loans and leases (including loans held for sale), net of allowance	39,238,657			39,148,605			3		38,468,402				38,088,242				3
Financial liabilities:
Time deposits	2,441,756			2,444,415			2		2,593,038				2,602,955				2
Foreign deposits	310,264			310,344			2		1,980,161				1,979,805				2
Long-term debt (less fair value hedges)	1,111,686			1,204,079			2		2,269,762				2,423,643				2
This summary excludes financial assets and liabilities for which carrying value approximates fair value. For financial assets, these include cash and due from banks and money market investments. For financial liabilities, these include demand, savings and money market deposits, and federal funds purchased and security repurchase agreements. The estimated fair value of demand, savings and money market deposits is the amount payable on demand at the reporting date. Carrying value is used because the accounts have no stated maturity and the customer has the ability to withdraw funds immediately. Also excluded from the summary are financial instruments recorded at fair value on a recurring basis, as previously described.
HTM investment securities primarily consist of municipal securities and bank and insurance trust preferred CDOs. They were measured at fair value according to the methodologies previously discussed for these investment types.
Loans are measured at fair value according to their status as nonimpaired or impaired. For nonimpaired loans, fair value is estimated by discounting future cash flows using the LIBOR yield curve adjusted by a factor which reflects the credit and interest rate risk inherent in the loan. These future cash flows are then reduced by the estimated “life-of-the-loan” aggregate credit losses in the loan portfolio. These adjustments for lifetime future credit losses are derived from the methods used to estimate the ALLL for our loan portfolio and are adjusted quarterly as necessary to reflect the most recent loss experience. Impaired loans are already considered to be held at fair value, except those whose fair value is determined by discounting cash flows, as discussed previously. See Impaired Loans in Note 6 for details on the impairment measurement method for impaired loans. Loans, other than those held for sale, are not normally purchased and sold by the Company, and there are no active trading markets for most of this portfolio.
Time and foreign deposits, and any other short-term borrowings, are measured at fair value by discounting future cash flows using the LIBOR yield curve to the given maturity dates.
Long-term debt is measured at fair value based on actual market trades (i.e., an asset value) when available, or discounting cash flows to maturity using the LIBOR yield curve adjusted for credit spreads.
These fair value disclosures represent our best estimates based on relevant market information and information about the financial instruments. Fair value estimates are based on judgments regarding current economic conditions, future expected loss experience, risk characteristics of the various instruments, and other factors. These estimates are subjective in nature, involve uncertainties and matters of significant judgment, and cannot be determined with precision. Changes in these methodologies and assumptions could significantly affect the estimates.

Commitments_Guarantees_And_Con

Commitments, Guarantees, And Contingent Liabilities	9 Months Ended
	Sep. 30, 2014
Guarantees, Commitments And Contingencies [Abstract]	'
Guarantees, Commitments And Contingencies	'
	COMMITMENTS, GUARANTEES AND CONTINGENT LIABILITIES
	Commitments and Guarantees
	Contractual amounts of off-balance sheet financial instruments used to meet the financing needs of our customers are as follows:
	(In thousands)	September 30,		December 31,
		2014		2013
	Net unfunded commitments to extend credit 1	$	16,600,064	$	16,174,326
	Standby letters of credit:
	Financial	721,045		779,811
	Performance	190,871		159,485
	Commercial letters of credit	33,819		80,218
	Total unfunded lending commitments	$	17,545,799	$	17,193,840
	1	Net of participations
	The Company’s 2013 Annual Report on Form 10-K contains further information about these commitments and guarantees including their terms and collateral requirements. At September 30, 2014, the Company had recorded approximately $82.5 million as a liability for the guarantees associated with the standby letters of credit, which consisted of $79.4 million attributable to the RULC and $3.1 million of deferred commitment fees.
	At September 30, 2014, the Parent has guaranteed $15.0 million of debt of affiliated trusts issuing trust preferred securities.
	At September 30, 2014, we had unfunded commitments for private equity and other noninterest-bearing investments of $23.0 million. These obligations have no stated maturity. However, at September 30, 2014, substantially all of the private equity investments related to these commitments were prohibited by the Volcker Rule. See previous discussions in Notes 5 and 10.
	Legal Matters
	We are subject to litigation in court and arbitral proceedings, as well as proceedings, investigations, examinations and other actions brought or considered by governmental and self-regulatory agencies. At any given time, litigation may relate to lending, deposit and other customer relationships, vendor and contractual issues, employee matters, intellectual property matters, personal injuries and torts, regulatory and legal compliance, and other matters. While most matters relate to individual claims, we are also subject to putative class action claims and similar broader claims. Current putative class actions and similar claims include the following:
	•	a complaint relating to our banking relationships with customers that allegedly engaged in wrongful telemarketing practices in which the plaintiff seeks a trebled monetary award under the federal RICO Act, Reyes v. Zions First National Bank, et. al., brought in the United States District Court for the Eastern District of Pennsylvania; and
	•	a complaint arising from our banking relationships with Frederick Berg and a number of investment funds controlled by him using the “Meridian” brand name, in which the liquidating trustee for the funds seeks an award from us, on the basis of aiding and abetting and other claims, for monetary damages suffered by victims of a fraud allegedly perpetrated by Berg, In re Consolidated Meridian Funds a/k/a Meridian Investors Trust, Mark Calvert as Liquidating Trustee, et. al. vs. Zions Bancorporation and The Commerce Bank of Washington, N.A., pending in the United States Bankruptcy Court for the Western District of Washington.
	In the third quarter of 2013, the District Court denied the plaintiff’s motion for class certification in the Reyes case. In the third quarter of 2014, the Third Circuit Court of Appeals heard an appeal by the plaintiff of the District Court decision.
	Discovery has been completed in the Reyes case and continues in the Meridian Funds case.
	At any given time, proceedings, investigations, examinations and other actions brought or considered by governmental and self-regulatory agencies may relate to our banking, investment advisory, trust, securities, and other products and services; our customers’ involvement in money-laundering, fraud, securities violations and other illicit activities or our policies and practices relating to such customer activities; and our compliance with the broad range of banking, securities and other laws and regulations applicable to us. At any given time, we may be in the process of responding to subpoenas, requests for documents, data and testimony relating to such matters and engaging in discussions to resolve the matters. Significant investigations and similar inquiries to which we are currently subject relate to:
	•	possible money laundering activities of a customer of one of our subsidiary banks and the anti-money laundering practices of that bank (conducted by the United States Attorney’s Office for the Southern District of New York); and
	•	the practices of our subsidiary, Zions Bank; our former subsidiary, NetDeposit, LLC; and possibly other of our affiliates relating primarily to payment processing for allegedly fraudulent telemarketers and other customer types (conducted by the Department of Justice).
	These two matters appear to be ongoing.
	At least quarterly, we review outstanding and new legal matters, utilizing then available information. In accordance with applicable accounting guidance, if we determine that a loss from a matter is probable and the amount of the loss can be reasonably estimated, we establish an accrual for the loss. In the absence of such a determination, no accrual is made. Once established, accruals are adjusted to reflect developments relating to the matters.
	In our review, we also assess whether we can determine the range of reasonably possible losses for significant matters in which we are unable to determine that the likelihood of a loss is remote. Because of the difficulty of predicting the outcome of legal matters, discussed subsequently, we are able to meaningfully estimate such a range only for a limited number of matters. We currently estimate the aggregate range of reasonably possible losses for those matters to be from $0 million to roughly $50 million in excess of amounts accrued. This estimated range of reasonably possible losses is based on information currently available as of September 30, 2014. The matters underlying the estimated range will change from time to time, and actual results may vary significantly from this estimate. Those matters for which an estimate is not possible are not included within this estimated range and, therefore, this estimated range does not represent our maximum loss exposure.
	Based on our current knowledge, we believe that our current estimated liability for litigation and other legal actions and claims, reflected in our accruals and determined in accordance with applicable accounting guidance, is adequate and that liabilities in excess of the amounts currently accrued, if any, arising from litigation and other legal actions and claims for which an estimate as previously described is possible, will not have a material impact on our financial condition, results of operations, or cash flows. However, in light of the significant uncertainties involved in these matters, and the very large or indeterminate damages sought in some of these matters, an adverse outcome in one or more of these matters could be material to our financial condition, results of operations, or cash flows for any given reporting period.
	Any estimate or determination relating to the future resolution of litigation, arbitration, governmental or self-regulatory examinations, investigations or actions or similar matters is inherently uncertain and involves significant judgment. This is particularly true in the early stages of a legal matter, when legal issues and facts have not been well articulated, reviewed, analyzed, and vetted through discovery, preparation for trial or hearings, substantive and productive mediation or settlement discussions, or other actions. It is also particularly true with respect to class action and similar claims involving multiple defendants, matters with complex procedural requirements or substantive issues or novel legal theories, and examinations, investigations and other actions conducted or brought by governmental and self-regulatory agencies, in which the normal adjudicative process is not applicable. Accordingly, we usually are unable to determine whether a favorable or unfavorable outcome is remote, reasonably likely, or probable, or to estimate the amount or range of a probable or reasonably likely loss, until relatively late in the course of a legal matter, sometimes not until a number of years have elapsed. Accordingly, our judgments and estimates relating to claims will change from time to time in light of developments and actual outcomes will differ from our estimates. These differences may be material.

Retirement_Plans

Retirement Plans	9 Months Ended
	Sep. 30, 2014
Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]	'
Retirement Plans	'
	RETIREMENT PLANS
	The following discloses the net periodic benefit cost (credit) and its components for the Company’s pension and postretirement plans:
		Pension benefits						Supplemental				Postretirement						Pension benefits						Supplemental				Postretirement
								retirement				benefits												retirement				benefits
								benefits																benefits
	(In thousands)	Three Months Ended September 30,																Nine Months Ended September 30,
		2014			2013			2014		2013		2014			2013			2014			2013			2014		2013		2014			2013
	Service cost	$	—		$	—		$	—	$	—	$	8		$	8		$	—		$	—		$	—	$	—	$	23		$	24
	Interest cost	1,869			1,721			113		101		12			10			5,608			5,164			340		303		35			31
	Expected return on plan assets	(3,326		)	(3,027		)											(9,979		)	(9,082		)
	Amortization of prior service							13		31		—			(37		)							38		93		—			(113		)
	cost (credit)
	Amortization of net actuarial	735			2,033			5		17		(18		)	(19		)	2,206			6,099			14		52		(53		)	(56		)
	(gain) loss
	Net periodic benefit cost (credit)	$	(722	)	$	727		$	131	$	149	$	2		$	(38	)	$	(2,165	)	$	2,181		$	392	$	448	$	5		$	(114	)
	As disclosed in the Company’s 2013 Annual Report on Form 10-K, the Company has frozen its participation and benefit accruals for the pension plan and its contributions for individual benefit payments in the postretirement benefit plan.

Operating_Segment_Information

Operating Segment Information	9 Months Ended
	Sep. 30, 2014
Operating Segment Information [Abstract]	'
Operating Segment Information	'
	.	OPERATING SEGMENT INFORMATION
	We manage our operations and prepare management reports and other information with a primary focus on geographical area. As of September 30, 2014, we operate eight community/regional banks in distinct geographical areas. Performance assessment and resource allocation are based upon this geographical structure. Zions Bank operates 100 branches in Utah, 26 branches in Idaho, and one branch in Wyoming. CB&T operates 95 branches in California. Amegy operates 84 branches in Texas. NBAZ operates 71 branches in Arizona. NSB operates 50 branches in Nevada. Vectra operates 36 branches in Colorado and one branch in New Mexico. TCBW operates one branch in the state of Washington. TCBO operates one branch in Oregon.
	The operating segment identified as “Other” includes the Parent, Zions Management Services Company (“ZMSC”), certain nonbank financial service subsidiaries, TCBO, and eliminations of transactions between segments. The Parent’s operations are significant to the Other segment. Net interest income is substantially affected by the Parent’s interest on long-term debt. Net impairment losses on investment securities relate to the Parent. ZMSC provides internal technology and operational services to affiliated operating businesses of the Company. ZMSC charges most of its costs to the affiliates on an approximate break-even basis.
	The accounting policies of the individual operating segments are the same as those of the Company. Transactions between operating segments are primarily conducted at fair value, resulting in profits that are eliminated for reporting consolidated results of operations. Operating segments pay for centrally provided services based upon estimated or actual usage of those services.
	The following schedule presents selected operating segment information for the three months ended September 30, 2014 and 2013:
	(In millions)	Zions Bank						CB&T						Amegy						NBAZ						NSB
		2014			2013			2014			2013			2014			2013			2014			2013			2014			2013
	CONDENSED INCOME STATEMENT
	Net interest income	$	146.7		$	145.1		$	98.9		$	109.8		$	95.8		$	95.5		$	40.3		$	40.5		$	28.4		$	28.4
	Provision for loan losses	(27.7		)	(9.5		)	(10.1		)	(3.0		)	(3.5		)	12.8			(4.5		)	(7.3		)	(4.9		)	—
	Net interest income after provision for loan losses	174.4			154.6			109			112.8			99.3			82.7			44.8			47.8			33.3			28.4
	Net impairment losses on investment securities	—			—			—			—			—			—			—			—			—			—
	Loss on sale of investment securities to Parent	—			—			—			—			—			—			—			—			—			—
	Other noninterest income	44.8			47.7			17.5			20.8			39.4			37.1			9.6			8.6			9.6			11.4
	Noninterest expense	123.4			119.1			77.1			75.9			79.1			75.3			33.2			35.3			31.8			32
	Income (loss) before income taxes	95.8			83.2			49.4			57.7			59.6			44.5			21.2			21.1			11.1			7.8
	Income tax expense (benefit)	35.4			30.2			19.1			23			20.4			14.9			7.9			7.7			3.7			2.6
	Net income (loss)	$	60.4		$	53		$	30.3		$	34.7		$	39.2		$	29.6		$	13.3		$	13.4		$	7.4		$	5.2
	AVERAGE BALANCE SHEET DATA
	Total assets	$	18,083		$	18,237		$	11,252		$	10,869		$	13,861		$	13,453		$	4,710		$	4,624		$	4,074		$	4,022
	Cash and due from banks	323			339			134			164			172			255			73			70			95			87
	Money market investments	3,079			3,868			1,577			1,288			2,555			2,823			401			444			738			883
	Total securities	1,814			1,287			258			321			266			285			380			320			799			785
	Total loans	12,312			12,271			8,520			8,328			9,721			8,981			3,660			3,600			2,318			2,158
	Total deposits	15,829			15,951			9,592			9,261			11,384			11,024			4,081			3,945			3,670			3,600
	Shareholder’s equity:
	Preferred equity	280			280			162			162			226			248			85			153			50			90
	Common equity	1,578			1,530			1,386			1,326			1,903			1,805			465			410			330			310
	Total shareholder’s equity	1,858			1,810			1,548			1,488			2,129			2,053			550			563			380			400
		Vectra						TCBW						Other						Consolidated
																				Company
		2014			2013			2014			2013			2014			2013			2014			2013
	CONDENSED INCOME STATEMENT
	Net interest income	$	25.4		$	25.8		$	7.6		$	7		$	(26.4	)	$	(36.6	)	$	416.7		$	415.5
	Provision for loan losses	(3.2		)	1.8			(0.6		)	(0.3		)	(0.2		)	(0.1		)	(54.7		)	(5.6		)
	Net interest income after provision for loan losses	28.6			24			8.2			7.3			(26.2		)	(36.5		)	471.4			421.1
	Net impairment losses on investment securities	—			—			—			—			—			(9.1		)	—			(9.1		)
	Loss on sale of investment	—			—			—			(2.7		)	—			2.7			—			—
	securities to Parent
	Other noninterest income	6			6.5			1			1			(11.9		)	(1.8		)	116			131.3
	Noninterest expense	24.2			24.4			4.7			4.8			65			3.9			438.5			370.7
	Income (loss) before income taxes	10.4			6.1			4.5			0.8			(103.1		)	(48.6		)	148.9			172.6
	Income tax expense (benefit)	3.6			2.1			1.5			0.3			(38.5		)	(19.7		)	53.1			61.1
	Net income (loss)	$	6.8		$	4		$	3		$	0.5		$	(64.6	)	$	(28.9	)	$	95.8		$	111.5
	AVERAGE BALANCE SHEET DATA
	Total assets	$	2,751		$	2,630		$	892		$	882		$	505		$	798		$	56,128		$	55,515
	Cash and due from banks	41			48			27			19			(3		)	(6		)	862			976
	Money market investments	176			127			127			121			(164		)	(100		)	8,489			9,454
	Total securities	152			184			73			101			305			592			4,047			3,875
	Total loans	2,319			2,195			654			627			64			64			39,568			38,224
	Total deposits	2,339			2,258			759			743			(1,364		)	(1,194		)	46,290			45,588
	Shareholder’s equity:
	Preferred equity	26			70			3			3			172			680			1,004			1,686
	Common equity	307			241			93			86			159			(518		)	6,221			5,190
	Total shareholder’s equity	333			311			96			89			331			162			7,225			6,876
	The following schedule presents selected operating segment information for the nine months ended September 30, 2014 and 2013:
	(In millions)	Zions Bank						CB&T						Amegy						NBAZ						NSB
		2014			2013			2014			2013			2014			2013			2014			2013			2014			2013
	CONDENSED INCOME STATEMENT
	Net interest income	$	434.8		$	447.4		$	311.8		$	347		$	285.9		$	284.9		$	120.9		$	122.4		$	84.6		$	84.4
	Provision for loan losses	(51.8		)	(18.4		)	(25.1		)	(12.8		)	5.9			4.7			(15.5		)	(12.0		)	(13.2		)	(8.9		)
	Net interest income after provision for loan losses	486.6			465.8			336.9			359.8			280			280.2			136.4			134.4			97.8			93.3
	Net impairment losses on investment securities	—			—			—			—			—			—			—			—			—			—
Loss on sale of investment securities to Parent	—			—			—			—			—			—			—			—			—			—
Other noninterest income	139			152.2			37.1			62.1			107.7			111			26.2			25.6			23.4			30
Noninterest expense	366			362.1			244.8			260.7			258.6			251.4			109.4			104.9			97.9			97.9
Income (loss) before income taxes	259.6			255.9			129.2			161.2			129.1			139.8			53.2			55.1			23.3			25.4
Income tax expense (benefit)	95.4			93.3			50.2			63.7			43.6			46.8			19.7			20.5			7.7			8.6
Net income (loss)	$	164.2		$	162.6		$	79		$	97.5		$	85.5		$	93		$	33.5		$	34.6		$	15.6		$	16.8
AVERAGE BALANCE SHEET DATA
Total assets	$	17,983		$	17,609		$	11,063		$	10,871		$	13,650		$	13,122		$	4,673		$	4,612		$	4,046		$	4,046
Cash and due from banks	333			347			152			168			235			283			73			70			89			85
Money market investments	3,099			3,113			1,321			1,284			2,498			2,563			368			452			734			944
Total securities	1,720			1,279			274			333			256			336			372			298			789			769
Total loans	12,292			12,330			8,571			8,297			9,550			8,790			3,668			3,588			2,314			2,127
Total deposits	15,709			15,314			9,421			9,267			11,217			10,707			4,016			3,919			3,648			3,606
Shareholder’s equity:
Preferred equity	280			280			162			162			202			250			101			171			50			114
Common equity	1,556			1,524			1,368			1,324			1,875			1,775			447			406			324			304
Noncontrolling interests	—			—			—			—			—			—			—			—			—			—
Total shareholder’s equity	1,836			1,804			1,530			1,486			2,077			2,025			548			577			374			418
	Vectra						TCBW						Other						Consolidated
																			Company
	2014			2013			2014			2013			2014			2013			2014			2013
CONDENSED INCOME STATEMENT
Net interest income	$	76.1		$	76.5		$	21.9		$	20.3		$	(86.5	)	$	(118.6	)	$	1,249.50		$	1,264.30
Provision for loan losses	(9.5		)	(7.6		)	(0.3		)	(1.1		)	(0.2		)	(0.5		)	(109.7		)	(56.6		)
Net interest income after provision for loan losses	85.6			84.1			22.2			21.4			(86.3		)	(118.1		)	1,359.20			1,320.90
Net impairment losses on investment securities	—			—			—			—			—			(23.4		)	—			(23.4		)
Loss on sale of investment	—			—			—			(2.7		)	—			2.7			—			—
securities to Parent
Other noninterest income	15.7			19.6			1			3			29.1			(11.6		)	379.2			391.9
Noninterest expense	73.2			75			14.2			13.6			78.5			54.1			1,242.60			1,219.70
Income (loss) before income taxes	28.1			28.7			9			8.1			(135.7		)	(204.5		)	495.8			469.7
Income tax expense (benefit)	9.7			10			3.1			2.8			(50.2		)	(80.9		)	179.2			164.8
Net income (loss)	$	18.4		$	18.7		$	5.9		$	5.3		$	(85.5	)	$	(123.6	)	$	316.6		$	304.9
AVERAGE BALANCE SHEET DATA
Total assets	$	2,639		$	2,541		$	878		$	866		$	603		$	1,019		$	55,535		$	54,686
Cash and due from banks	45			50			23			19			(9		)	(9		)	941			1,013
Money market investments	70			84			113			135			(159		)	169			8,044			8,744
Total securities	158			184			79			103			414			551			4,062			3,853
Total loans	2,305			2,142			650			596			64			63			39,414			37,933
Total deposits	2,231			2,177			745			727			(1,143		)	(718		)	45,844			44,999
Shareholder’s equity:
Preferred equity	46			70			3			3			160			429			1,004			1,479
Common equity	279			235			91			84			(84		)	(557		)	5,856			5,095
Noncontrolling interests	—			—			—			—			—			(2		)	—			(2		)
Total shareholder’s equity	325			305			94			87			76			(130		)	6,860			6,572

Basis_of_Presentaion_Organizat

Basis of Presentaion Organization and Presentation (Policies)	9 Months Ended
	Sep. 30, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]	'
	BASIS OF PRESENTATION
	The accompanying unaudited consolidated financial statements of Zions Bancorporation (“the Parent”) and its majority-owned subsidiaries (collectively “the Company,” “Zions,” “we,” “our,” “us”) have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. References to GAAP, including standards promulgated by the Financial Accounting Standards Board (“FASB”) are made according to sections of the Accounting Standards Codification (“ASC”) and to Accounting Standards Updates (“ASU”), which include consensus issues of the Emerging Issues Task Force (“EITF”). In certain cases, ASUs are issued jointly with International Financial Reporting Standards (“IFRS”). Certain prior period amounts have been reclassified to conform with the current period presentation.
	Operating results for the three and nine months ended September 30, 2014 and 2013 are not necessarily indicative of the results that may be expected in future periods. The consolidated balance sheet at December 31, 2013 is from the audited financial statements at that date, but does not include all of the information and footnotes required by GAAP for complete financial statements. For further information, refer to the consolidated financial statements and footnotes thereto included in the Company’s 2013 Annual Report on Form 10-K.
	The Company provides a full range of banking and related services through subsidiary banks in 11 Western and Southwestern states as follows: Zions First National Bank (“Zions Bank”), in Utah, Idaho and Wyoming; California Bank & Trust (“CB&T”); Amegy Corporation (“Amegy”) and its subsidiary, Amegy Bank, in Texas; National Bank of Arizona (“NBAZ”); Nevada State Bank (“NSB”); Vectra Bank Colorado (“Vectra”), in Colorado and New Mexico; The Commerce Bank of Washington (“TCBW”); and The Commerce Bank of Oregon (“TCBO”). The Parent and its subsidiary banks also own and operate certain nonbank subsidiaries that engage in financial services.

Supplemental_Cash_Flow_Informa1

Supplemental Cash Flow Information (Tables)	9 Months Ended
	Sep. 30, 2014
Supplemental Cash Flow Information [Abstract]	'
Schedule of Other Significant Noncash Transactions [Table Text Block]	'
	(In thousands)	Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2014			2013			2014			2013
	Loans and leases transferred to other real estate owned	$	8,954		$	12,098		$	20,197		$	52,916
	Loans and leases transferred to (from) loans held for sale	(9,658		)	(113		)	(14,739		)	36,301
	Beneficial conversion feature transferred from common stock to preferred stock as a result of subordinated debt conversions	—			—			5			206
	Subordinated debt converted to preferred stock	—			—			31			1,210
	Preferred stock transferred to common stock as a result of the	—			580			—			580
	Series C preferred stock redemption
	Preferred stock/beneficial conversion feature transferred to retained earnings as a result of the Series C preferred stock redemption	—			125,700			—			125,700

Offsetting_Assets_and_Liabilit1

Offsetting Assets and Liabilities (Tables)	9 Months Ended
	Sep. 30, 2014
Offsetting Assets and Liabilities [Abstract]	'
Fair Value, by Balance Sheet Grouping [Table Text Block]	'
			September 30, 2014
	(In thousands)											Gross amounts not offset in the balance sheet
	Description		Gross amounts recognized			Gross amounts offset in the balance sheet			Net amounts presented in the balance sheet			Financial instruments			Cash collateral received/pledged			Net amount
	Assets:
	Federal funds sold and security resell agreements		$	355,844		$	—		$	355,844		$	—		$	—		$	355,844
	Derivatives (included in other assets)		54,720			—			54,720			(5,701		)	250			49,269
			$	410,564		$	—		$	410,564		$	(5,701	)	$	250		$	405,113
	Liabilities:
	Federal funds and other short-term borrowings		$	191,798		$	—		$	191,798		$	—		$	—		$	191,798
	Derivatives (included in other liabilities)		56,036			—			56,036			(5,701		)	(27,362		)	22,973
			$	247,834		$	—		$	247,834		$	(5,701	)	$	(27,362	)	$	214,771
			December 31, 2013
	(In thousands)											Gross amounts not offset in the balance sheet
	Description		Gross amounts recognized			Gross amounts offset in the balance sheet			Net amounts presented in the balance sheet			Financial instruments			Cash collateral received/pledged			Net amount
	Assets:
	Federal funds sold and security resell agreements		$	282,248		$	—		$	282,248		$	—		$	—		$	282,248
	Derivatives (included in other assets)		65,683			—			65,683			(11,650		)	2,210			56,243
			$	347,931		$	—		$	347,931		$	(11,650	)	$	2,210		$	338,491
	Liabilities:
	Federal funds and other short-term borrowings		$	340,348		$	—		$	340,348		$	—		$	—		$	340,348
	Derivatives (included in other liabilities)		68,397			—			68,397			(11,650		)	(26,997		)	29,750
			$	408,745		$	—		$	408,745		$	(11,650	)	$	(26,997	)	$	370,098
		September 30, 2014								December 31, 2013
	(In thousands)	Carrying			Estimated			Level		Carrying			Estimated			Level
		value			fair value					value			fair value
	Financial assets:
	HTM investment securities	$	609,758		$	642,529		3		$	588,981		$	609,547		3
	Loans and leases (including loans held for sale), net of allowance	39,238,657			39,148,605			3		38,468,402			38,088,242			3
	Financial liabilities:
	Time deposits	2,441,756			2,444,415			2		2,593,038			2,602,955			2
	Foreign deposits	310,264			310,344			2		1,980,161			1,979,805			2
	Long-term debt (less fair value hedges)	1,111,686			1,204,079			2		2,269,762			2,423,643			2

Investment_Securities_Tables

Investment Securities (Tables)	9 Months Ended
	Sep. 30, 2014																													Sep. 30, 2013
Investments [Abstract]	'																													'
Summary Of Investment Securities	'																													'
		September 30, 2014
					Recognized in OCI 1												Not recognized in OCI
	(In thousands)	Amortized			Gross				Gross				Carrying				Gross			Gross				Estimated
		cost			unrealized				unrealized				value				unrealized			unrealized				fair
					gains				losses								gains			losses				value
	Held-to-maturity
	Municipal securities	$	570,527		$	—			$	—			$	570,527			$	14,096		$	829			$	583,794
	Asset-backed securities:
	Trust preferred securities – banks and insurance	79,302			—				40,171			2	39,131				20,465			961				58,635
	Other debt securities	100			—				—				100				—			—				100
		649,929			—				40,171				609,758				34,561			1,790				642,529
	Available-for-sale
	U.S. Treasury securities	1,530			16				—				1,546											1,546
	U.S. Government agencies and corporations:
	Agency securities	617,844			1,992				7,861				611,975											611,975
	Agency guaranteed mortgage-backed securities	465,516			10,593				596				475,513											475,513
	Small Business Administration loan-backed securities	1,507,510			18,005				6,139				1,519,376											1,519,376
	Municipal securities	187,792			1,300				731				188,361											188,361
	Asset-backed securities:
	Trust preferred securities – banks and insurance	708,716			9,071				129,284				588,503											588,503
	Auction rate securities	5,596			118				—				5,714											5,714
	Other	635			153				—				788											788
		3,495,139			41,248				144,611				3,391,776											3,391,776
	Mutual funds and other	173,863			55				2,286				171,632											171,632
		3,669,002			41,303				146,897				3,563,408											3,563,408
	Total	$	4,318,931		$	41,303			$	187,068			$	4,173,166										$	4,205,937
		December 31, 2013
					Recognized in OCI 1												Not recognized in OCI
	(In thousands)	Amortized			Gross				Gross				Carrying				Gross			Gross				Estimated
		cost			unrealized				unrealized				value				unrealized			unrealized				fair
					gains				losses								gains			losses				value
	Held-to-maturity
	Municipal securities	$	551,055		$	—			$	—			$	551,055			$	11,295		$	4,616			$	557,734
	Asset-backed securities:
	Trust preferred securities – banks and insurance	79,419			—				41,593			2	37,826				15,195			1,308				51,713
	Other debt securities	100			—				—				100				—			—				100
		630,574			—				41,593				588,981				26,490			5,924				609,547
	Available-for-sale
	U.S. Treasury securities	1,442			104				—				1,546											1,546
	U.S. Government agencies and
	corporations:
	Agency securities	517,905			1,920				901				518,924											518,924
	Agency guaranteed mortgage-backed securities	308,687			9,926				1,237				317,376											317,376
	Small Business Administration loan-backed securities	1,202,901			21,129				2,771				1,221,259											1,221,259
	Municipal securities	65,425			1,329				490				66,264											66,264
	Asset-backed securities:
	Trust preferred securities – banks and insurance	1,508,224			13,439				282,843				1,238,820											1,238,820
	Trust preferred securities – real estate investment trusts	22,996			—				—				22,996											22,996
	Auction rate securities	6,507			118				26				6,599											6,599
	Other	27,540			359				—				27,899											27,899
		3,661,627			48,324				288,268				3,421,683											3,421,683
	Mutual funds and other	287,603			21				7,421				280,203											280,203
		3,949,230			48,345				295,689				3,701,886											3,701,886
	Total	$	4,579,804		$	48,345			$	337,282			$	4,290,867										$	4,311,433
Contractual Maturities Debt Securities	'																													'
		Held-to-maturity							Available-for-sale
	(In thousands)	Amortized			Estimated				Amortized				Estimated
		cost			fair				cost				fair
					value								value
	Due in one year or less	$	77,219		$	77,458			$	528,660			$	519,418
	Due after one year through five years	199,307			205,355				1,328,670				1,323,839
	Due after five years through ten years	139,558			143,066				805,257				797,432
	Due after ten years	233,845			216,650				832,552				751,087
		$	649,929		$	642,529			$	3,495,139			$	3,391,776
Summary Of Amount Of Gross Unrealized Losses For Debt Securities And Estimated Fair Value	'																													'
			December 31, 2013
			Less than 12 months							12 months or more								Total
		(In thousands)	Gross			Estimated				Gross				Estimated				Gross			Estimated
			unrealized			fair				unrealized				fair				unrealized			fair
			losses			value				losses				value				losses			value
		Held-to-maturity
		Municipal securities	$	4,025		$	70,400			$	591			$	9,103			$	4,616		$	79,503
		Asset-backed securities:
		Trust preferred securities – banks and insurance	—			—				42,901				51,319				42,901			51,319
			4,025			70,400				43,492				60,422				47,517			130,822
		Available-for-sale
		U.S. Government agencies and corporations:
		Agency securities	828			47,862				73				5,874				901			53,736
		Agency guaranteed mortgage-backed securities	1,231			64,533				6				935				1,237			65,468
		Small Business Administration loan-backed securities	1,709			187,680				1,062				39,256				2,771			226,936
		Municipal securities	73			8,834				417				3,179				490			12,013
		Asset-backed securities:
		Trust preferred securities – banks and insurance	2,539			51,911				280,304				847,990				282,843			899,901
		Auction rate securities	5			1,609				21				892				26			2,501
			6,385			362,429				281,883				898,126				288,268			1,260,555
		Mutual funds and other	943			24,057				6,478				103,614				7,421			127,671
			7,328			386,486				288,361				1,001,740				295,689			1,388,226
		Total	$	11,353		$	456,886			$	331,853			$	1,062,162			$	343,206		$	1,519,048
	The following is a summary of the amount of gross unrealized losses for investment securities and the estimated fair value by length of time the securities have been in an unrealized loss position:
		September 30, 2014
		Less than 12 months							12 months or more								Total
	(In thousands)	Gross			Estimated				Gross				Estimated				Gross			Estimated
		unrealized			fair				unrealized				fair				unrealized			fair
		losses			value				losses				value				losses			value
	Held-to-maturity
	Municipal securities	$	275		$	15,546			$	554			$	17,334			$	829		$	32,880
	Asset-backed securities:
	Trust preferred securities – banks and insurance	54			92				41,078				58,543				41,132			58,635
		329			15,638				41,632				75,877				41,961			91,515
	Available-for-sale
	U.S. Government agencies and corporations:
	Agency securities	6,936			336,846				925				25,295				7,861			362,141
	Agency guaranteed mortgage-backed securities	264			87,575				332				15,809				596			103,384
	Small Business Administration loan-backed securities	3,741			426,197				2,398				127,107				6,139			553,304
	Municipal securities	164			23,538				567				4,381				731			27,919
	Asset-backed securities:
	Trust preferred securities – banks and insurance	—			—				129,284				507,065				129,284			507,065
	Auction rate securities	—			—				—				—				—			—
		11,105			874,156				133,506				679,657				144,611			1,553,813
	Mutual funds and other	664			27,817				1,622				48,471				2,286			76,288
		11,769			901,973				135,128				728,128				146,897			1,630,101
	Total	$	12,098		$	917,611			$	176,760			$	804,005			$	188,858		$	1,721,616
Rollforward Of Total Amount Of Credit-Related OTTI	'																													'
	(In thousands)	Three Months Ended											Nine Months Ended																	(In thousands)	Three Months Ended									Nine Months Ended
		30-Sep-14											30-Sep-14																		30-Sep-14									30-Sep-14
		HTM			AFS				Total				HTM				AFS			Total											HTM			AFS			Total			HTM			AFS			Total
	Balance of credit-related OTTI at beginning	$	(9,079	)	$	(163,914	)		$	(172,993	)		$	(9,052	)		$	(176,833	)	$	(185,885	)								Balance of credit-related OTTI at beginning	$	(9,079	)	$	(163,914	)	$	(172,993	)	$	(9,052	)	$	(176,833	)	$	(185,885	)
	of period																													of period
	Additions recognized in earnings during the period:																													Additions recognized in earnings during the period:
	Credit-related OTTI on securities not previously impaired	—			—				—				—				—			—										Credit-related OTTI on securities not previously impaired	—			—			—			—			—			—
	Additional credit-related OTTI on securities previously impaired	—			—				—				(27		)		—			(27		)								Additional credit-related OTTI on securities previously impaired	—			—			—			(27		)	—			(27		)
	Subtotal of amounts recognized in earnings	—			—				—				(27		)		—			(27		)								Subtotal of amounts recognized in earnings	—			—			—			(27		)	—			(27		)
	Reductions for securities sold or paid off during the period	—			44,929				44,929				—				57,848			57,848										Reductions for securities sold or paid off during the period	—			44,929			44,929			—			57,848			57,848
	Balance of credit-related OTTI at end of period	$	(9,079	)	$	(118,985	)		$	(128,064	)		$	(9,079	)		$	(118,985	)	$	(128,064	)								Balance of credit-related OTTI at end of period	$	(9,079	)	$	(118,985	)	$	(128,064	)	$	(9,079	)	$	(118,985	)	$	(128,064	)
																														(In thousands)	Three Months Ended									Nine Months Ended
																															30-Sep-13									30-Sep-13
																															HTM			AFS			Total			HTM			AFS			Total
																														Balance of credit-related OTTI at beginning	$	(13,952	)	$	(406,577	)	$	(420,529	)	$	(13,549	)	$	(394,494	)	$	(408,043	)
																														of period
																														Additions recognized in earnings during the period:
																														Credit-related OTTI on securities not previously impaired	—			(168		)	(168		)	(403		)	(168		)	(571		)
																														Additional credit-related OTTI on securities previously impaired	—			(8,899		)	(8,899		)	—			(22,830		)	(22,830		)
																														Subtotal of amounts recognized in earnings	—			(9,067		)	(9,067		)	(403		)	(22,998		)	(23,401		)
																														Reductions for securities sold or paid off during the period	—			—			—			—			1,848			1,848
																														Balance of credit-related OTTI at end of period	$	(13,952	)	$	(415,644	)	$	(429,596	)	$	(13,952	)	$	(415,644	)	$	(429,596	)
Noncredit Related OTTI	'																													'
	(In thousands)	Three Months Ended							Nine Months Ended
		September 30,							September 30,
		2014			2013				2014				2013
	HTM	$	—		$	—			$	—			$	16,114
	AFS	—			1,403				—				7,358
		$	—		$	1,403			$	—			$	23,472
Gains And Losses, Including OTTI, Recognized In Statement Of Income	'																													'
			Three Months Ended															Nine Months Ended
			September 30, 2014							September 30, 2013								September 30, 2014							September 30, 2013
		(In thousands)	Gross gains			Gross losses				Gross gains				Gross losses				Gross gains			Gross losses				Gross gains		Gross losses
		Investment securities:
		Held-to-maturity	$	2		$	—			$	32			$	—			$	2		$	27			$	63	$	403
		Available-for-sale	5,873			20,063				1,551				9,070				83,466			62,948				7,989		27,324
		Other noninterest-bearing investments:
		Nonmarketable equity securities	5,911			5,184				4,802				1,637				10,568			5,184				9,868		1,662
			11,786			25,247				6,385				10,707				94,036			68,159				17,920		29,389
		Net gains (losses)				$	(13,461	)						$	(4,322	)					$	25,877					$	(11,469	)
		Statement of income information:
		Net impairment losses on investment securities				$	—							$	(9,067	)					$	(27	)				$	(23,401	)
		Equity securities gains, net				440								3,165							3,865						8,206
		Fixed income securities gains (losses), net				(13,901		)						1,580							22,039						3,726
		Net gains (losses)				$	(13,461	)						$	(4,322	)					$	25,877					$	(11,469	)
Tax and Nontaxable Interest Income by Investment Type [Table Text Block]	'																													'
	(In thousands)	Three Months Ended											Nine Months Ended
		30-Sep-14											30-Sep-14
		Taxable			Nontaxable				Total				Taxable				Nontaxable			Total
	Investment securities:
	Held-to-maturity	$	3,597		$	2,805			$	6,402			$	11,146			$	8,448		$	19,594
	Available-for-sale	16,895			677				17,572				54,099				1,829			55,928
	Trading	403			—				403				1,451				—			1,451
		$	20,895		$	3,482			$	24,377			$	66,696			$	10,277		$	76,973

Loans_And_Allowance_For_Credit1

Loans And Allowance For Credit Losses (Tables)	9 Months Ended
	Sep. 30, 2014																				Sep. 30, 2013
Financing Receivable, Modifications [Line Items]	'																				'
Troubled Debt Restructuring and Financing Receivables, 12 months or less [Table Text Block]	'																				'
		Three Months Ended									Nine Months Ended
		30-Sep-14									30-Sep-14
	(In thousands)	Accruing			Nonaccruing			Total			Accruing			Nonaccruing			Total
	Commercial:
	Commercial and industrial	$	96		$	633		$	729		$	96		$	752		$	848
	Owner occupied	—			1,025			1,025			—			1,025			1,025
	Total commercial	96			1,658			1,754			96			1,777			1,873
	Consumer:
	Home equity credit line	—			158			158			—			201			201
	1-4 family residential	—			353			353			—			353			353
	Construction and other consumer real estate	—			—			—			—			39			39
	Total consumer loans	—			511			511			—			593			593
	Total	$	96		$	2,169		$	2,265		$	96		$	2,370		$	2,466
		Three Months Ended									Nine Months Ended
		30-Sep-13									30-Sep-13
	(In thousands)	Accruing			Nonaccruing			Total			Accruing			Nonaccruing			Total
	Commercial:
	Commercial and industrial	$	—		$	660		$	660		$	—		$	660		$	660
	Owner occupied	—			—			—			—			511			511
	Total commercial	—			660			660			—			1,171			1,171
	Consumer:
	Home equity credit line	—			222			222			—			307			307
	1-4 family residential	—			—			—			—			1,372			1,372
	Construction and other consumer real estate							—									—
	Total consumer loans	—			222			222			—			1,679			1,679
	Total	$	—		$	882		$	882		$	—		$	2,850		$	2,850
	Note: Total loans modified as TDRs during the 12 months previous to September 30, 2014 and 2013 were $97.3 million and
Schedule of Quantitative Information about Derecognized Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together [Table Text Block]	'																				'
	(In billions)	September 30,			December 31,
		2014			2013
	Loan Servicing Assets	$	1.2		$	1.2
Summary Of Major Portfolio Segment And Specific Loan Class	'																				'
	(In thousands)	September 30,			December 31,
		2014			2013
	Loans held for sale	$	109,139		$	171,328
	Commercial:
	Commercial and industrial	$	12,896,517		$	12,481,083
	Leasing	404,542			387,929
	Owner occupied	7,334,498			7,437,195
	Municipal	517,953			449,418
	Total commercial	21,153,510			20,755,625
	Commercial real estate:
	Construction and land development	1,892,723			2,182,821
	Term	8,165,723			8,005,837
	Total commercial real estate	10,058,446			10,188,658
	Consumer:
	Home equity credit line	2,255,172			2,133,120
	1-4 family residential	5,152,872			4,736,665
	Construction and other consumer real estate	350,248			324,922
	Bankcard and other revolving plans	388,588			356,240
	Other	190,518			197,864
	Total consumer	8,337,398			7,748,811
	FDIC-supported/PCI loans	190,441			350,271
	Total loans	$	39,739,795		$	39,043,365
Summary Of Changes in The Allowance For Credit Losses	'																				'
	Changes in the allowance for credit losses are summarized as follows:
		Three Months Ended September 30, 2014
	(In thousands)	Commercial			Commercial			Consumer			FDIC-			Total
					real estate						supported/PCI 1
	Allowance for loan losses:
	Balance at beginning of period	$	440,234		$	187,261		$	44,535		$	3,877		$	675,907
	Additions:
	Provision for loan losses	(20,073		)	(34,179		)	(422		)	31			(54,643		)
	Adjustment for FDIC-supported/PCI loans										(25		)	(25		)
	Deductions:
	Gross loan and lease charge-offs	(18,575		)	(3,320		)	(3,061		)	(1,515		)	(26,471		)
	Recoveries	8,870			3,332			3,028			279			15,509
	Net loan and lease charge-offs	(9,705		)	12			(33		)	(1,236		)	(10,962		)
	Balance at end of period	$	410,456		$	153,094		$	44,080		$	2,647		$	610,277
	Reserve for unfunded lending commitments:
	Balance at beginning of period	$	52,801		$	38,689		$	3,982		$	—		$	95,472
	Provision charged (credited) to earnings	1,651			(14,390		)	(3,356		)	—			(16,095		)
	Balance at end of period	$	54,452		$	24,299		$	626		$	—		$	79,377
	Total allowance for credit losses at end of period:
	Allowance for loan losses	$	410,456		$	153,094		$	44,080		$	2,647		$	610,277
	Reserve for unfunded lending commitments	54,452			24,299			626			—			79,377
	Total allowance for credit losses	$	464,908		$	177,393		$	44,706		$	2,647		$	689,654
		Nine Months Ended September 30, 2014
	(In thousands)	Commercial			Commercial			Consumer			FDIC-			Total
					real estate						supported/PCI 1
	Allowance for loan losses:
	Balance at beginning of period	$	465,145		$	213,363		$	60,865		$	6,918		$	746,291
	Additions:
	Provision for loan losses	(38,269		)	(55,094		)	(14,522		)	(1,784		)	(109,669		)
	Adjustment for FDIC-supported/PCI loans	—			—			—			(1,286		)	(1,286		)
	Deductions:
	Gross loan and lease charge-offs	(42,702		)	(14,135		)	(10,433		)	(3,396		)	(70,666		)
	Recoveries	26,282			8,960			8,170			2,195			45,607
	Net loan and lease charge-offs	(16,420		)	(5,175		)	(2,263		)	(1,201		)	(25,059		)
	Balance at end of period	$	410,456		$	153,094		$	44,080		$	2,647		$	610,277
	Reserve for unfunded lending commitments:
	Balance at beginning of period	$	48,345		$	37,485		$	3,875		$	—		$	89,705
	Provision charged (credited) to earnings	6,107			(13,186		)	(3,249		)	—			(10,328		)
	Balance at end of period	$	54,452		$	24,299		$	626		$	—		$	79,377
	Total allowance for credit losses at end of period:
	Allowance for loan losses	$	410,456		$	153,094		$	44,080		$	2,647		$	610,277
	Reserve for unfunded lending commitments	54,452			24,299			626			—			79,377
	Total allowance for credit losses	$	464,908		$	177,393		$	44,706		$	2,647		$	689,654
		Three Months Ended September 30, 2013
	(In thousands)	Commercial			Commercial			Consumer			FDIC-			Total
					real estate						supported/PCI 1
	Allowance for loan losses:
	Balance at beginning of period	$	486,353		$	251,278		$	70,366		$	5,915		$	813,912
	Additions:
	Provision for loan losses	(1,768		)	(4,520		)	569			146			(5,573		)
	Adjustment for FDIC-supported/PCI loans	—			—			—			(2,118		)	(2,118		)
	Deductions:
	Gross loan and lease charge-offs	(11,465		)	(5,738		)	(5,535		)	(88		)	(22,826		)
	Recoveries	6,155			2,988			3,109			1,876			14,128
	Net loan and lease charge-offs	(5,310		)	(2,750		)	(2,426		)	1,788			(8,698		)
	Balance at end of period	$	479,275		$	244,008		$	68,509		$	5,731		$	797,523
	Reserve for unfunded lending commitments:
	Balance at beginning of period	$	63,272		$	39,454		$	1,356		$	—		$	104,082
	Provision charged (credited) to earnings	(16,133		)	(6,010		)	2,208			—			(19,935		)
	Balance at end of period	$	47,139		$	33,444		$	3,564		$	—		$	84,147
	Total allowance for credit losses at end of period:
	Allowance for loan losses	$	479,275		$	244,008		$	68,509		$	5,731		$	797,523
	Reserve for unfunded lending commitments	47,139			33,444			3,564			—			84,147
Total allowance for credit losses	$	526,414		$	277,452		$	72,073		$	5,731		$	881,670
	Nine Months Ended September 30, 2013
(In thousands)	Commercial			Commercial			Consumer			FDIC-			Total
				real estate						supported/PCI 1
Allowance for loan losses:
Balance at beginning of period	$	510,908		$	276,976		$	95,656		$	12,547		$	896,087
Additions:
Provision for loan losses	(10,179		)	(34,370		)	(12,725		)	676			(56,598		)
Adjustment for FDIC-supported/PCI loans	—			—			—			(9,756		)	(9,756		)
Deductions:
Gross loan and lease charge-offs	(48,073		)	(19,069		)	(24,574		)	(1,676		)	(93,392		)
Recoveries	26,619			20,471			10,152			3,940			61,182
Net loan and lease charge-offs	(21,454		)	1,402			(14,422		)	2,264			(32,210		)
Balance at end of period	$	479,275		$	244,008		$	68,509		$	5,731		$	797,523
Reserve for unfunded lending commitments:
Balance at beginning of period	$	67,374		$	37,852		$	1,583		$	—		$	106,809
Provision charged (credited) to earnings	(20,235		)	(4,408		)	1,981			—			(22,662		)
Balance at end of period	$	47,139		$	33,444		$	3,564		$	—		$	84,147
Total allowance for credit losses at end of period:
Allowance for loan losses	$	479,275		$	244,008		$	68,509		$	5,731		$	797,523
Reserve for unfunded lending commitments	47,139			33,444			3,564			—			84,147
Total allowance for credit losses	$	526,414		$	277,452		$	72,073		$	5,731		$	881,670
1 The Purchased Loans section following contains further discussion related to FDIC-supported/PCI loans.
Summary Of Nonaccrual Loans	'																				'
	Nonaccrual loans are summarized as follows:
	(In thousands)	September 30,			December 31,
		2014			2013
	Commercial:
	Commercial and industrial	$	87,810		$	97,960
	Leasing	369			757
	Owner occupied	97,749			136,281
	Municipal	8,684			9,986
	Total commercial	194,612			244,984
	Commercial real estate:
	Construction and land development	22,728			29,205
	Term	29,704			60,380
	Total commercial real estate	52,432			89,585
	Consumer:
	Home equity credit line	11,756			8,969
	1-4 family residential	43,445			53,002
	Construction and other consumer real estate	2,037			3,510
	Bankcard and other revolving plans	254			1,365
	Other	140			804
	Total consumer loans	57,632			67,650
	FDIC-supported/PCI loans	2,554			4,394
	Total	$	307,230		$	406,613
Summary Of Past Due Loans (Accruing And Nonaccruing)	'																				'
	Past due loans (accruing and nonaccruing) are summarized as follows:
		September 30, 2014
	(In thousands)	Current			30-89 days			90+ days			Total			Total			Accruing		Nonaccrual
					past due			past due			past due			loans			loans		loans
																	90+ days		that are
																	past due		current 1
	Commercial:
	Commercial and industrial	$	12,819,580		$	36,177		$	40,760		$	76,937		$	12,896,517		$	2,157	$	45,530
	Leasing	404,501			15			26			41			404,542			—		343
	Owner occupied	7,270,149			26,660			37,689			64,349			7,334,498			1,969		54,316
	Municipal	517,953			—			—			—			517,953			—		8,684
	Total commercial	21,012,183			62,852			78,475			141,327			21,153,510			4,126		108,873
	Commercial real estate:
	Construction and land development	1,881,153			1,965			9,605			11,570			1,892,723			—		13,002
	Term	8,126,717			22,052			16,954			39,006			8,165,723			852		12,040
	Total commercial real estate	10,007,870			24,017			26,559			50,576			10,058,446			852		25,042
	Consumer:
	Home equity credit line	2,241,766			3,625			9,781			13,406			2,255,172			—		1,534
	1-4 family residential	5,119,368			8,818			24,686			33,504			5,152,872			1,623		16,619
	Construction and other consumer real estate	348,408			617			1,223			1,840			350,248			585		1,329
	Bankcard and other revolving plans	385,918			1,755			915			2,670			388,588			771		65
	Other	189,921			537			60			597			190,518			17		93
	Total consumer loans	8,285,381			15,352			36,665			52,017			8,337,398			2,996		19,640
	FDIC-supported/PCI loans	160,850			4,301			25,290			29,591			190,441			22,781		—
	Total	$	39,466,284		$	106,522		$	166,989		$	273,511		$	39,739,795		$	30,755	$	153,555
		December 31, 2013
	(In thousands)	Current			30-89 days			90+ days			Total			Total			Accruing		Nonaccrual
					past due			past due			past due			loans			loans		loans
																	90+ days		that are
																	past due		current 1
	Commercial:
	Commercial and industrial	$	12,387,546		$	48,811		$	44,726		$	93,537		$	12,481,083		$	1,855	$	52,412
	Leasing	387,526			173			230			403			387,929			36		563
	Owner occupied	7,357,618			36,718			42,859			79,577			7,437,195			744		82,072
	Municipal	440,608			3,307			5,503			8,810			449,418			—		1,176
	Total commercial	20,573,298			89,009			93,318			182,327			20,755,625			2,635		136,223
	Commercial real estate:
	Construction and land development	2,162,018			8,967			11,836			20,803			2,182,821			23		17,311
	Term	7,971,327			15,362			19,148			34,510			8,005,837			5,580		42,624
	Total commercial real estate	10,133,345			24,329			30,984			55,313			10,188,658			5,603		59,935
	Consumer:
	Home equity credit line	2,122,549			8,001			2,570			10,571			2,133,120			98		2,868
	1-4 family residential	4,704,852			8,526			23,287			31,813			4,736,665			667		27,592
	Construction and other consumer real estate	322,807			1,038			1,077			2,115			324,922			—		2,232
	Bankcard and other revolving plans	353,060			2,093			1,087			3,180			356,240			900		1,105
	Other	196,327			827			710			1,537			197,864			54		125
	Total consumer loans	7,699,595			20,485			28,731			49,216			7,748,811			1,719		33,922
	FDIC-supported/PCI loans	305,709			12,026			32,536			44,562			350,271			30,391		1,975
	Total	$	38,711,947		$	145,849		$	185,569		$	331,418		$	39,043,365		$	40,348	$	232,055
	1 Represents nonaccrual loans that are not past due more than 30 days; however, full payment of principal and interest is still not expected.
Summary Of Outstanding Loan Balances (Accruing And Nonaccruing) Categorized By Credit Quality Indicators	'																				'
		September 30, 2014
	(In thousands)	Pass			Special			Sub-			Doubtful			Total			Total
					Mention			standard						loans			allowance
	Commercial:
	Commercial and industrial	$	12,245,426		$	234,086		$	406,326		$	10,679		$	12,896,517
	Leasing	395,119			6,950			2,473			—			404,542
	Owner occupied	6,779,463			192,458			362,577			—			7,334,498
	Municipal	507,955			1,314			8,684			—			517,953
	Total commercial	19,927,963			434,808			780,060			10,679			21,153,510			$	410,456
	Commercial real estate:
	Construction and land development	1,834,329			13,845			44,549			—			1,892,723
	Term	7,845,622			109,929			210,172			—			8,165,723
	Total commercial real estate	9,679,951			123,774			254,721			—			10,058,446			153,094
	Consumer:
	Home equity credit line	2,232,497			—			22,675			—			2,255,172
	1-4 family residential	5,097,336			—			55,536			—			5,152,872
	Construction and other consumer real estate	344,024			—			6,224			—			350,248
	Bankcard and other revolving plans	386,887			—			1,701			—			388,588
	Other	190,085			—			433			—			190,518
	Total consumer loans	8,250,829			—			86,569			—			8,337,398			44,080
	FDIC-supported/PCI loans	121,968			13,095			55,378			—			190,441			2,647
	Total	$	37,980,711		$	571,677		$	1,176,728		$	10,679		$	39,739,795		$	610,277
		December 31, 2013
	(In thousands)	Pass			Special			Sub-			Doubtful			Total			Total
					Mention			standard						loans			allowance
	Commercial:
	Commercial and industrial	$	11,807,825		$	303,598		$	360,391		$	9,269		$	12,481,083
	Leasing	380,268			2,050			5,611			—			387,929
	Owner occupied	6,827,464			184,328			425,403			—			7,437,195
	Municipal	439,432			—			9,986			—			449,418
	Total commercial	19,454,989			489,976			801,391			9,269			20,755,625			$	465,145
	Commercial real estate:
	Construction and land development	2,107,828			15,010			59,983			—			2,182,821
	Term	7,569,472			172,856			263,509			—			8,005,837
	Total commercial real estate	9,677,300			187,866			323,492			—			10,188,658			213,363
	Consumer:
	Home equity credit line	2,111,475			—			21,645			—			2,133,120
	1-4 family residential	4,668,841			—			67,824			—			4,736,665
	Construction and other consumer real estate	313,881			—			11,041			—			324,922
	Bankcard and other revolving plans	353,618			—			2,622			—			356,240
	Other	196,770			—			1,094			—			197,864
	Total consumer loans	7,644,585			—			104,226			—			7,748,811			60,865
	FDIC-supported/PCI loans	232,893			22,532			94,846			—			350,271			6,918
	Total	$	37,009,767		$	700,374		$	1,323,955		$	9,269		$	39,043,365		$	746,291
Summary Of Information On Impaired Loans	'																				'
	The ALLL and outstanding loan balances according to the Company’s impairment method are summarized as follows:
		September 30, 2014																				September 30, 2014
	(In thousands)	Commercial			Commercial			Consumer			FDIC-			Total							(In thousands)	Unpaid		Recorded investment					Total			Related
					real estate						supported/PCI											principal							recorded			allowance
	Allowance for loan losses:																					balance		with no			with		investment
	Individually evaluated for impairment	$	30,239		$	5,874		$	9,072		$	—		$	45,185									allowance			allowance
																					Commercial:
	Collectively evaluated for impairment	380,217			147,220			35,008			41			562,486							Commercial and industrial	$	221,275	$	26,195		$	103,919	$	130,114		$	21,692
	Purchased loans with evidence of credit deterioration	—			—			—			2,606			2,606							Owner occupied	130,606		52,893			55,433		108,326			5,479
	Total	$	410,456		$	153,094		$	44,080		$	2,647		$	610,277						Municipal	9,164		1,076			7,609		8,685			1,816
																					Total commercial	361,045		80,164			166,961		247,125			28,987
	Outstanding loan balances:
	Individually evaluated for impairment	$	270,559		$	183,579		$	94,360		$	5		$	548,503						Commercial real estate:
																					Construction and land development	53,702		14,805			29,869		44,674			2,589
	Collectively evaluated for impairment	20,882,951			9,874,867			8,243,038			5,480			39,006,336
																					Term	134,557		56,490			33,878		90,368			2,635
	Purchased loans with evidence of credit deterioration	—			—			—			184,956			184,956
																					Total commercial real estate	188,259		71,295			63,747		135,042			5,224
	Total	$	21,153,510		$	10,058,446		$	8,337,398		$	190,441		$	39,739,795
																					Consumer:
																					Home equity credit line	22,105		14,048			2,997		17,045			128
																					1-4 family residential	85,431		37,308			33,998		71,306			8,426
		December 31, 2013
	(In thousands)	Commercial			Commercial			Consumer			FDIC-			Total							Construction and other consumer real estate	4,218		1,602			1,190		2,792			197
					real estate						supported/PCI
	Allowance for loan losses:																				Bankcard and other revolving plans	—		—			—		—			—
	Individually evaluated for impairment	$	39,288		$	12,510		$	10,701		$	—		$	62,499
																					Total consumer loans	111,754		52,958			38,185		91,143			8,751
	Collectively evaluated for impairment	425,857			200,853			50,164			392			677,266
																					FDIC-supported/PCI loans	245,687		72,728			112,233		184,961			2,606
	Purchased loans with evidence of credit deterioration	—			—			—			6,526			6,526
																					Total	$	906,745	$	277,145		$	381,126	$	658,271		$	45,568
	Total	$	465,145		$	213,363		$	60,865		$	6,918		$	746,291
	Outstanding loan balances:
	Individually evaluated for impairment	$	315,604		$	262,907		$	101,545		$	1,224		$	681,280							December 31, 2013
																					(In thousands)	Unpaid		Recorded investment					Total			Related
	Collectively evaluated for impairment	20,440,021			9,925,751			7,647,266			37,963			38,051,001								principal							recorded			allowance
																						balance		with no			with		investment
	Purchased loans with evidence of credit deterioration	—			—			—			311,084			311,084										allowance			allowance
																					Commercial:
	Total	$	20,755,625		$	10,188,658		$	7,748,811		$	350,271		$	39,043,365						Commercial and industrial	$	167,816	$	28,917		$	117,881	$	146,798		$	22,462
																					Owner occupied	151,499		50,361			88,584		138,945			13,900
																					Municipal	10,465		1,175			8,811		9,986			1,225
																					Total commercial	329,780		80,453			215,276		295,729			37,587
																					Commercial real estate:
																					Construction and land development	85,440		19,206			50,744		69,950			3,483
																					Term	171,826		34,258			112,330		146,588			7,981
																					Total commercial real estate	257,266		53,464			163,074		216,538			11,464
																					Consumer:
																					Home equity credit line	17,547		12,568			2,200		14,768			178
																					1-4 family residential	95,613		38,775			42,132		80,907			10,276
																					Construction and other consumer real estate	4,713		2,643			933		3,576			175
																					Bankcard and other revolving plans	726		726			—		726			—
																					Total consumer loans	118,599		54,712			45,265		99,977			10,629
																					FDIC-supported/PCI loans	404,308		83,917			228,392		312,309			6,526
																					Total	$	1,109,953	$	272,546		$	652,007	$	924,553		$	66,206
																						Three Months Ended					Nine Months Ended
																						30-Sep-14					30-Sep-14
																					(In thousands)	Average		Interest			Average		Interest
																						recorded		income			recorded		income
																						investment		recognized			investment		recognized
																					Commercial:
																					Commercial and industrial	$	176,526	$	1,232		$	168,181	$	2,812
																				Owner occupied	144,302		777			141,734		2,252
																				Municipal	8,798		—			9,343		—
																				Total commercial	329,626		2,009			319,258		5,064
																				Commercial real estate:
																				Construction and land development	57,408		367			59,422		1,256
																				Term	142,471		1,001			136,677		3,000
																				Total commercial real estate	199,879		1,368			196,099		4,256
																				Consumer:
																				Home equity credit line	17,217		145			16,203		411
																				1-4 family residential	79,523		490			78,750		1,352
																				Construction and other consumer real estate	3,066		40			2,953		106
																				Other	—		—			—		—
																				Total consumer loans	99,806		675			97,906		1,869
																				FDIC-supported/PCI loans	200,222		10,335		1	239,953		47,074		1
																				Total	$	829,533	$	14,387		$	853,216	$	58,263
																					Three Months Ended					Nine Months Ended
																					30-Sep-13					30-Sep-13
																				(In thousands)	Average		Interest			Average		Interest
																					recorded		income			recorded		income
																					investment		recognized			investment		recognized
																				Commercial:
																				Commercial and industrial	$	199,217	$	1,105		$	175,040	$	2,594
																				Owner occupied	217,439		915			211,225		2,810
																				Municipal	—		—			—		—
																				Total commercial	416,656		2,020			386,265		5,404
																				Commercial real estate:
																				Construction and land development	135,013		623			139,194		2,754
																				Term	288,980		1,969			285,307		5,571
																				Total commercial real estate	423,993		2,592			424,501		8,325
																				Consumer:
																				Home equity credit line	14,606		120			12,943		262
																				1-4 family residential	103,379		457			100,012		1,171
																				Construction and other consumer real estate	5,501		49			5,767		141
																				Other	1,751		—			1,784		—
																				Total consumer loans	125,237		626			120,506		1,574
																				FDIC-supported/PCI loans	363,293		20,004		1	404,826		79,153		1
																				Total	$	1,329,179	$	25,242		$	1,336,098	$	94,456
																				1	The balance of interest income recognized results primarily from accretion of interest income on impaired FDIC-supported/PCI loans.
Summary Of Selected Information On TDRs That Includes Recorded Investment On An Accruing And Nonaccruing Basis By Loan Class And Modification Type	'																				'
		September 30, 2014
		Recorded investment resulting from the following modification types:
	(In thousands)	Interest			Maturity			Principal			Payment			Other1			Multiple		Total
		rate below			or term			forgiveness			deferral						modification
		market			extension												types2
	Accruing
	Commercial:
	Commercial and industrial	$	2,627		$	8,346		$	19		$	3,076		$	3,829		$	42,312	$	60,209
	Owner occupied	20,615			1,314			967			1,262			11,530			17,008		52,696
	Total commercial	23,242			9,660			986			4,338			15,359			59,320		112,905
	Commercial real estate:
	Construction and land development	—			6,322			—			—			535			16,549		23,406
	Term	7,414			9,098			184			3,612			5,304			41,628		67,240
	Total commercial real estate	7,414			15,420			184			3,612			5,839			58,177		90,646
	Consumer:
	Home equity credit line	742			71			10,706			—			274			421		12,214
	1-4 family residential	2,411			384			7,286			449			1,119			35,348		46,997
	Construction and other consumer real estate	290			652			44			—			—			1,246		2,232
	Total consumer loans	3,443			1,107			18,036			449			1,393			37,015		61,443
	Total accruing	34,099			26,187			19,206			8,399			22,591			154,512		264,994
	Nonaccruing
	Commercial:
	Commercial and industrial	564			593			—			990			5,264			26,785		34,196
	Owner occupied	2,786			857			—			913			6,165			12,171		22,892
	Municipal	—			1,076			—			—			—			—		1,076
	Total commercial	3,350			2,526			—			1,903			11,429			38,956		58,164
	Commercial real estate:
	Construction and land development	11,237			71			—			—			3,342			6,776		21,426
	Term	2,953			—			—			15			291			6,321		9,580
	Total commercial real estate	14,190			71			—			15			3,633			13,097		31,006
	Consumer:
	Home equity credit line	—			—			648			45			218			305		1,216
	1-4 family residential	3,380			47			1,106			200			3,853			9,848		18,434
	Construction and other consumer real estate	3			613			39			90			—			108		853
	Bankcard and other revolving plans	—			—			—			—			—			—		—
	Total consumer loans	3,383			660			1,793			335			4,071			10,261		20,503
	Total nonaccruing	20,923			3,257			1,793			2,253			19,133			62,314		109,673
	Total	$	55,022		$	29,444		$	20,999		$	10,652		$	41,724		$	216,826	$	374,667
		December 31, 2013
		Recorded investment resulting from the following modification types:
	(In thousands)	Interest			Maturity			Principal			Payment			Other1			Multiple		Total
		rate below			or term			forgiveness			deferral						modification
		market			extension												types2
	Accruing
	Commercial:
	Commercial and industrial	$	1,143		$	9,848		$	11,491		$	3,217		$	4,308		$	53,117	$	83,124
	Owner occupied	22,841			1,482			987			1,291			9,659			23,576		59,836
	Total commercial	23,984			11,330			12,478			4,508			13,967			76,693		142,960
	Commercial real estate:
	Construction and land development	1,067			8,231			—			1,063			4,119			28,295		42,775
	Term	7,542			9,241			190			3,783			14,932			61,024		96,712
	Total commercial real estate	8,609			17,472			190			4,846			19,051			89,319		139,487
	Consumer:
	Home equity credit line	743			—			9,438			—			323			332		10,836
	1-4 family residential	2,628			997			6,814			643			3,083			35,869		50,034
	Construction and other consumer real estate	128			329			11			—			—			1,514		1,982
	Total consumer loans	3,499			1,326			16,263			643			3,406			37,715		62,852
	Total accruing	36,092			30,128			28,931			9,997			36,424			203,727		345,299
	Nonaccruing
	Commercial:
	Commercial and industrial	2,028			5,814			—			473			8,948			10,395		27,658
	Owner occupied	3,020			1,489			1,043			1,593			10,482			14,927		32,554
	Municipal	—			1,175			—			—			—			—		1,175
Total commercial	5,048			8,478			1,043			2,066			19,430			25,322		61,387
Commercial real estate:
Construction and land development	11,699			1,555			—			—			5,303			8,617		27,174
Term	2,126			—			—			1,943			315			14,861		19,245
Total commercial real estate	13,825			1,555			—			1,943			5,618			23,478		46,419
Consumer:
Home equity credit line	—			—			1,036			—			221			—		1,257
1-4 family residential	4,315			1,396			1,606			—			3,901			14,109		25,327
Construction and other consumer real estate	4			1,260			—			—			—			229		1,493
Bankcard and other revolving plans	—			252			—			—			—			—		252
Total consumer loans	4,319			2,908			2,642			—			4,122			14,338		28,329
Total nonaccruing	23,192			12,941			3,685			4,009			29,170			63,138		136,135
Total	$	59,284		$	43,069		$	32,616		$	14,006		$	65,594		$	266,865	$	481,434
1	Includes TDRs that resulted from other modification types including, but not limited to, a legal judgment awarded on different terms, a bankruptcy plan confirmed on different terms, a settlement that includes the delivery of collateral in exchange for debt reduction, etc.
2	Includes TDRs that resulted from a combination of any of the previous modification types.
Schedule Of Net Financial Impact On Interest Income Due To Interest Rate Modifications Below Market For Accruing TDR Loans	'																				'
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
	(In thousands)	2014			2013			2014			2013
	Commercial:
	Commercial and industrial	$	(440	)	$	(107	)	$	(396	)	$	(308	)
	Owner occupied	(1,487		)	(1,061		)	(4,797		)	(3,158		)
	Total commercial	(1,927		)	(1,168		)	(5,193		)	(3,466		)
	Commercial real estate:
	Construction and land development	(578		)	(237		)	(1,850		)	(755		)
	Term	(1,798		)	(2,134		)	(5,224		)	(7,285		)
	Total commercial real estate	(2,376		)	(2,371		)	(7,074		)	(8,040		)
	Consumer:
	Home equity credit line	(7		)	(24		)	(50		)	(97		)
	1-4 family residential	(3,318		)	(3,700		)	(10,359		)	(11,313		)
	Construction and other consumer real estate	(93		)	(106		)	(300		)	(324		)
	Total consumer loans	(3,418		)	(3,830		)	(10,709		)	(11,734		)
	Total decrease to interest income1	$	(7,721	)	$	(7,369	)	$	(22,976	)	$	(23,240	)
	1Calculated based on the difference between the modified rate and the premodified rate applied to the recorded investment.
Schedule Of Outstanding Balances Of All Required Payments And The Related Carrying Amounts For PCI Loans	'																				'
	(In thousands)	September 30,			December 31,
		2014			2013
	Commercial	$	116,955		$	150,191
	Commercial real estate	115,320			233,720
	Consumer	19,752			28,608
	Outstanding balance	$	252,027		$	412,519
	Carrying amount	$	184,956		$	311,797
	ALLL	2,606			6,478
	Carrying amount, net	$	182,350		$	305,319
Schedule Of Changes In The Accretable Yield For PCI Loans	'																				'
	(In thousands)	Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2014			2013			2014			2013
	Balance at beginning of period	$	60,834		$	104,483		$	77,528		$	134,461
	Accretion	(10,279		)	(19,941		)	(46,767		)	(78,994		)
	Reclassification from nonaccretable difference	2,955			7,908			17,406			31,092
	Disposals and other	(38		)	3,308			5,305			9,199
	Balance at end of period	$	53,472		$	95,758		$	53,472		$	95,758

Derivative_Instruments_And_Hed1

Derivative Instruments And Hedging Activities Derivative Instruments and Hedging Activities (Tables)	9 Months Ended
	Sep. 30, 2014
Summary of Derivative Instruments [Abstract]	'
Schedule of Derivative Instruments	'
		September 30, 2014								December 31, 2013
		Notional			Fair value					Notional		Fair value
	(In thousands)	amount			Other		Other			amount		Other		Other
					assets		liabilities					assets		liabilities
	Derivatives designated as hedging instruments
	Asset derivatives
	Cash flow hedges:
	Interest rate swaps	$	225,000		$	271	$	670		$	100,000	$	202	$	583
	Total derivatives designated as hedging instruments	225,000			271		670			100,000		202		583
	Derivatives not designated as hedging instruments
	Interest rate swaps	14,301			—		67			65,850		420		421
	Interest rate swaps for customers 2	2,773,340			45,132		46,552			2,902,776		55,447		54,688
	Foreign exchange	281,022			9,317		8,747			751,066		9,614		8,643
	Total return swap	—			—		—			1,159,686		—		4,062
	Total derivatives not designated as hedging instruments	3,068,663			54,449		55,366			4,879,378		65,481		67,814
	Total derivatives	$	3,293,663		$	54,720	$	56,036		$	4,979,378	$	65,683	$	68,397
Schedule Of Gain (Loss) Of Derivative Instruments	'
		Three Months Ended September 30, 2014										Nine Months Ended September 30, 2014
		Amount of derivative gain (loss) recognized/reclassified
	(In thousands)	OCI			Reclassified		Noninterest			Offset to		OCI		Reclassified		Noninterest			Offset to
					from AOCI		income			interest				from AOCI		income			interest
					to interest		(expense)			expense				to interest		(expense)			expense
					income 3									income 3
	Derivatives designated as hedging instruments
	Asset derivatives
	Cash flow hedges 1:
	Interest rate swaps	$	(845	)	$	770	$	—				$	1,681	$	1,698	$	—
		(845		)	770		—					1,681		1,698		—
	Liability derivatives
	Fair value hedges:
	Terminated swaps on long-term debt									$	496								$	1,822
	Total derivatives designated as hedging instruments	(845		)	770		—			496		1,681		1,698		—			1,822
	Derivatives not designated as hedging instruments
	Interest rate swaps						1									355
	Interest rate swaps for customers 2						1,419									493
	Foreign exchange						2,242									5,951
	Total return swap						—									(7,894		)
	Total derivatives not designated as hedging instruments						3,662									(1,095		)
	Total derivatives	$	(845	)	$	770	$	3,662		$	496	$	1,681	$	1,698	$	(1,095	)	$	1,822
		Three Months Ended September 30, 2013										Nine Months Ended September 30, 2013
		Amount of derivative gain (loss) recognized/reclassified
	(In thousands)	OCI			Reclassified		Noninterest			Offset to		OCI		Reclassified		Noninterest			Offset to
					from AOCI		income			interest				from AOCI		income			interest
					to interest		(expense)			expense				to interest		(expense)			expense
					income 3									income 3
	Derivatives designated as hedging instruments
	Asset derivatives
	Cash flow hedges 1:
	Interest rate swaps	$	414		$	97	$	—				$	408	$	2,479	$	—
		414			97		—					408		2,479		—
	Liability derivatives
	Fair value hedges:
	Terminated swaps on long-term debt									$	796								$	2,342
	Total derivatives designated as hedging instruments	414			97		—			796		408		2,479		—			2,342
	Derivatives not designated as hedging instruments
	Interest rate swaps						765									678
	Interest rate swaps for customers 2						883									6,631
	Futures contracts						2									2
	Foreign exchange						(536		)							7,072
	Total return swap						(5,342		)							(16,350		)
	Total derivatives not designated as hedging instruments						(4,228		)							(1,967		)
	Total derivatives	$	414		$	97	$	(4,228	)	$	796	$	408	$	2,479	$	(1,967	)	$	2,342
	Note: These schedules are not intended to present at any given time the Company’s long/short position with respect to its derivative contracts.
	1	Amounts recognized in OCI and reclassified from accumulated OCI (“AOCI”) represent the effective portion of the derivative gain (loss).
	2	Amounts include both the customer swaps and the offsetting derivative contracts.
	3	Amounts for the three and nine months ended September 30, of $0.8 million and $1.7 million in 2014, and $0.1 million and $2.5 million in 2013, respectively, are the amounts of reclassification to earnings from AOCI presented in Note 8.

Debt_And_Shareholders_Equity_T

Debt And Shareholders' Equity (Tables)	9 Months Ended
	Sep. 30, 2014
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]	'
Minimum and Maximum Interest Rate on debt repayment [Table Text Block]	'
	Interest rate	Minimum interest rate			Maximum interest rate
	Minimum and maximum Interest rates on long-term senior debt redemptions during 1st and 2nd quarters	2.75	%		5.5	%
Schedule of Long-term Debt Instruments [Table Text Block]	'
	Long-term debt is summarized as follows:
	(In thousands)		30-Sep-14				31-Dec-13
	Junior subordinated debentures related to trust preferred securities		$	168,043			$	168,043
	Convertible subordinated notes		127,679				184,147
	Subordinated notes		336,250				443,231
	Senior notes		458,798				1,454,779
	FHLB advances		22,302				22,736
	Capital lease obligations and other		605				639
			$	1,113,677			$	2,273,575
Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]	'
			Amounts reclassified from AOCI 1														Statement of income (SI) Balance sheet
	(In thousands)		Three Months Ended								Nine Months Ended						(BS)
			September 30,								September 30,
	Details about AOCI components		2014				2013				2014			2013					Affected line item
	Net realized gains (losses) on investment securities		$	(13,901	)		$	1,580			$	22,039		$	3,726		SI		Fixed income securities gains (losses), net
	Income tax expense (benefit)		(6,015		)		604				1,981			1,425
			(7,886		)		976				20,058			2,301
	Net unrealized losses on investment		—				(9,067		)		(27		)	(22,999		)	SI		Net impairment losses on investment securities
	securities
	Income tax benefit		—				(3,479		)		(10		)	(8,863		)
			—				(5,588		)		(17		)	(14,136		)
	Accretion of securities with noncredit-related impairment losses not expected to be sold		(467		)		(496		)		(1,411		)	(1,477		)	BS		Investment securities, held-to-maturity
	Deferred income taxes		191				211				576			597			BS		Other assets
			$	(8,162	)		$	(4,897	)		$	19,206		$	(12,715	)
	Net unrealized gains on derivative instruments		$	770			$	97			$	1,698		$	2,479		SI		Interest and fees on loans
	Income tax expense		307				40				677			996
			$	463			$	57			$	1,021		$	1,483
Schedule Of Changes In Accumulated Other Comprehensive Income (Loss)	'
	(In thousands)		Net unrealized gains (losses) on investment securities						Net unrealized gains (losses) on derivatives and other					Pension and post-retirement			Total
	Nine Months Ended September 30, 2014
	Balance at December 31, 2013			$	(168,805	)				$	1,556			$	(24,852	)	$	(192,101	)
	Other comprehensive income before reclassifications, net of tax			100,723						678				—			101,401
	Amounts reclassified from AOCI, net of tax			(19,206		)				(1,021		)		—			(20,227		)
	Other comprehensive income (loss)			81,517						(343		)		—			81,174
	Balance at September 30, 2014			$	(87,288	)				$	1,213			$	(24,852	)	$	(110,927	)
	Income tax expense (benefit) included in other comprehensive income (loss)			$	61,714					$	(214	)		$	—		$	61,500
	Nine Months Ended September 30, 2013
	Balance at December 31, 2012			$	(403,893	)				$	8,071			$	(50,335	)	$	(446,157	)
	Other comprehensive income (loss) before reclassifications, net of tax			53,896						(3,474		)		—			50,422
	Amounts reclassified from AOCI, net of tax			12,715						(1,483		)		—			11,232
	Other comprehensive income (loss)			66,611						(4,957		)		—			61,654
	Balance at September 30, 2013			$	(337,282	)				$	3,114			$	(50,335	)	$	(384,503	)
	Income tax expense (benefit) included in other comprehensive income (loss)			$	40,354					$	(3,123	)		$	—		$	37,231

Fair_Value_Tables

Fair Value (Tables)	9 Months Ended
	Sep. 30, 2014
Fair Value Disclosures [Abstract]	'
Schedule Of Assets And Liabilities Measured At Fair Value By Class On A Recurring Basis	'
	(In thousands)	September 30, 2014
		Level 1			Level 2			Level 3				Total
	ASSETS
	Investment securities:
	Available-for-sale:
	U.S. Treasury, agencies and corporations				$	2,608,410						$	2,608,410
	Municipal securities				178,433			$	9,928			188,361
	Asset-backed securities:
	Trust preferred – banks and insurance				63,033			525,470				588,503
	Auction rate							5,714				5,714
	Other				761			27				788
	Mutual funds and stock	$	166,158		5,474							171,632
		166,158			2,856,111			541,139				3,563,408
	Trading account				55,419							55,419
	Other noninterest-bearing investments:
	Bank-owned life insurance				475,304							475,304
	Private equity							83,885				83,885
	Other assets:
	Agriculture loan servicing and interest-only strips							11,918				11,918
	Deferred compensation plan assets	88,273										88,273
	Derivatives:
	Interest rate related and other				271							271
	Interest rate swaps for customers				45,132							45,132
	Foreign currency exchange contracts	9,317										9,317
		9,317			45,403							54,720
		$	263,748		$	3,432,237		$	636,942			$	4,332,927
	LIABILITIES
	Securities sold, not yet purchased	$	26,251									$	26,251
	Other liabilities:
	Deferred compensation plan obligations	88,273										88,273
	Derivatives:
	Interest rate related and other				$	734						734
	Interest rate swaps for customers				46,552							46,552
	Foreign currency exchange contracts	8,747										8,747
		8,747			47,286							56,033
	Other							$	67			67
		$	123,271		$	47,286		$	67			$	170,624
	(In thousands)	December 31, 2013
		Level 1			Level 2			Level 3				Total
	ASSETS
	Investment securities:
	Available-for-sale:
	U.S. Treasury, agencies and corporations				$	2,059,105						$	2,059,105
	Municipal securities				55,602			$	10,662			66,264
	Asset-backed securities:
	Trust preferred – banks and insurance							1,238,820				1,238,820
	Trust preferred – real estate investment trusts							22,996				22,996
	Auction rate							6,599				6,599
	Other				2,099			25,800				27,899
	Mutual funds and stock	$	259,750		20,453							280,203
		259,750			2,137,259			1,304,877				3,701,886
	Trading account				34,559							34,559
	Other noninterest-bearing investments:
	Bank-owned life insurance				466,428							466,428
	Private equity				4,822			82,410				87,232
	Other assets:
	Agriculture loan servicing and interest-only strips							8,852				8,852
	Deferred compensation plan assets	86,184										86,184
	Derivatives:
	Interest rate related and other				1,100							1,100
	Interest rate swaps for customers				55,447							55,447
	Foreign currency exchange contracts	9,614										9,614
		9,614			56,547							66,161
	$	355,548		$	2,699,615		$	1,396,139			$	4,451,302
LIABILITIES
Securities sold, not yet purchased	$	73,606									$	73,606
Other liabilities:
Deferred compensation plan obligations	86,184										86,184
Derivatives:
Interest rate related and other				$	1,004						1,004
Interest rate swaps for customers				54,688							54,688
Foreign currency exchange contracts	8,643										8,643
Total return swap							$	4,062			4,062
	8,643			55,692			4,062				68,397
Other							241				241
	$	168,433		$	55,692		$	4,303			$	228,428
Schedule Of Assets And Liabilities Measured At Fair Value By Class On A Recurring Basis Using Level 3 Inputs	'
		Level 3 Instruments
		Three Months Ended September 30, 2014
	(In thousands)	Municipal			Trust			Trust				Auction				Other				Private			Ag loan svcg and int-only strips			Derivatives
		securities			preferred – banks and insurance			preferred				rate				asset-backed				equity						and other
								– REIT												investments						liabilities
	Balance at June 30, 2014	$	10,038		$	685,805		$	—			$	6,578			$	28			$	82,256		$	11,461		$	(132	)
	Net gains (losses) included in:
	Statement of income:
	Accretion of purchase discount on securities available-for-sale	9			480							1
	Dividends and other investment income																			1,451
	Equity securities losses, net																			(3,684		)
	Fixed income securities gains (losses), net	2			(13,956		)					37
	Other noninterest income																						139
	Other noninterest expense																									65
	Other comprehensive income	4			45,521							48
	Purchases																			4,438			531
	Sales				(155,869		)					(950		)		(1		)		(476		)
	Redemptions and paydowns	(125		)	(36,511		)													(100		)	(213		)
	Balance at September 30, 2014	$	9,928		$	525,470		$	—			$	5,714			$	27			$	83,885		$	11,918		$	(67	)
		Level 3 Instruments
		Nine Months Ended September 30, 2014
	(In thousands)	Municipal			Trust			Trust				Auction				Other				Private			Ag loan svcg and int-only strips			Derivatives
		securities			preferred – banks and insurance			preferred				rate				asset-backed				equity						and other
								– REIT												investments						liabilities
	Balance at December 31, 2013	$	10,662		$	1,238,820		$	22,996			$	6,599			$	25,800			$	82,410		$	8,852		$	(4,303	)
	Net gains (losses) included in:
	Statement of income:
	Accretion of purchase discount on securities available-for-sale	27			1,833							3
	Dividends and other investment income (loss)																			(1,296		)
	Fair value and nonhedge derivative loss																									(7,894		)
	Equity securities losses, net																			(3,100		)
	Fixed income securities gains, net	18			9,009			1,399				37				10,917
	Other noninterest income																						665
	Other noninterest expense																									174
	Other comprehensive income (loss)	(178		)	146,861							25				(15		)
	Purchases																			12,898			2,987
	Sales				(702,257		)	(24,395		)		(950		)		(36,670		)		(1,315		)
	Redemptions and paydowns	(601		)	(99,603		)									(5		)		(5,712		)	(586		)	11,956
	Transfers to Level 2				(69,193		)
	Balance at September 30, 2014	$	9,928		$	525,470		$	—			$	5,714			$	27			$	83,885		$	11,918		$	(67	)
		Level 3 Instruments
		Three Months Ended September 30, 2013
	(In thousands)	Municipal			Trust			Trust				Auction				Other				Private			Ag loan svcg and int-only strips			Derivatives
		securities			preferred – banks and insurance			preferred – REIT				rate				asset-backed				equity						and other
																				investments						liabilities
	Balance at June 30, 2013	$	13,544		$	1,030,293		$	18,499			$	6,554			$	17,324			$	75,517		$	8,338		$	(5,118	)
	Net gains (losses) included in:
	Statement of income:
	Accretion of purchase discount on securities available-for-sale	10			783			64				1				50
	Dividends and other investment income																			306
	Fair value and nonhedge derivative loss																									(5,342		)
	Fixed income securities gains, net	2			1,494											10
	Net impairment losses on investment securities				(7,787		)	(1,112		)						(168		)
	Other noninterest income																						578
	Other noninterest expense																									92
	Other comprehensive income	64			(3,934		)	2,067				70				(476		)
	Purchases																			2,064
	Sales																			(249		)
	Redemptions and paydowns	(100		)	(18,954		)									(3,193		)		(82		)	(341		)	5,932
	Balance at September 30, 2013	$	13,520		$	1,001,895		$	19,518			$	6,625			$	13,547			$	77,556		$	8,575		$	(4,436	)
		Level 3 Instruments
		Nine Months Ended September 30, 2013
	(In thousands)	Municipal			Trust			Trust				Auction				Other				Private			Ag loan svcg and int-only strips			Derivatives
securities			preferred – banks and insurance			preferred – REIT			rate			asset-backed				equity				and other
																investments				liabilities
Balance at December 31, 2012	$	16,551		$	949,271		$	16,403			$	6,515			$	15,160			$	64,223		$	8,334		$	(5,251	)
Net gains (losses) included in:
Statement of income:
Accretion of purchase discount on securities available-for-sale	31			2,395			190				2				64
Dividends and other investment income																			5,455
Fair value and nonhedge derivative loss																									(16,350		)
Equity securities gains, net																			3,739
Fixed income securities gains, net	38			3,530											54
Net impairment losses on investment securities				(21,548		)	(1,282		)						(168		)
Other noninterest income																						1,081
Other noninterest expense																									(73		)
Other comprehensive income	986			127,028			4,207				108				4,147
Purchases																			5,905
Sales				(7,015		)													(1,369		)
Redemptions and paydowns	(4,086		)	(51,766		)									(5,710		)		(397		)	(840		)	17,238
Balance at September 30, 2013	$	13,520		$	1,001,895		$	19,518			$	6,625			$	13,547			$	77,556		$	8,575		$	(4,436	)
Schedule Of Realized Gains (Losses) Using Level 3 Inputs	'
	(In thousands)	Three Months Ended September 30,						Nine Months Ended September 30,
		2014			2013			2014				2013
	Dividends and other investment income (loss)	$	—		$	—		$	34			$	(45	)
	Fixed income securities gains (losses), net	(13,917		)	1,506			21,380				3,622
Summary of Quantitative Information Relating to the Principal Valuation Techniques and Significant Unobservable Inputs for Level 3 [Table Text Block]	'
		Level 3 Instruments
		Quantitative information at September 30, 2014
	(Dollar amounts in thousands)	Fair value			Principal valuation techniques		Significant unobservable inputs	Range of inputs
								(% annually)
	Asset-backed securities:
	Trust preferred – predominantly banks	$	584,104		Discounted cash flow		Constant prepayment rate	until 2016 – 4.0% to 26.0%
					Market comparables
								2016 to maturity – 3.0%
							Constant default rate	yr 1 – 0.3% to 2.47%
								yrs 2-5 – 0.48% to 0.74%
								yrs 6 to maturity – 0.60% to 0.65%
							Loss given default	100%
							Loss given deferral	35.43% to 100%
							Discount rate	4.5% to 5.1%
							(spread over forward LIBOR)
		Level 3 Instruments
		Quantitative information at December 31, 2013
	(Dollar amounts in thousands)	Fair value			Principal valuation techniques		Significant unobservable inputs	Range of inputs
								(% annually)
	Asset-backed securities:
	Trust preferred – predominantly banks	$	921,819		Discounted cash flow		Constant prepayment rate	until 2016 – 5.50% to 20.73%
					Market comparables
								2016 to maturity – 3.0%
							Constant default rate	yr 1 – 0.30% to 1.94%
								yrs 2-5 – 0.49% to 1.14%
								yrs 6 to maturity – 0.58% to 0.65%
							Loss given default	100%
							Loss given deferral	14.39% to 100%
							Discount rate	5.6% to 7.7%
							(spread over forward LIBOR)
	Trust preferred – predominantly insurance	346,390			Discounted cash flow		Constant prepayment rate	until maturity – 5.0%
					Market comparables
							Constant default rate	yr 1 – 0.38% to 1.03%
								yrs 2-5 – 0.53% to 0.89%
								yrs 6 to maturity – 0.50% to 0.55%
							Loss given default	100%
							Loss given deferral	2.18% to 30.13%
							Discount rate	3.72% to 6.49%
							(spread over forward LIBOR)
	Trust preferred – individual banks	22,324			Market comparables		Yield	6.6% to 7.8%
							Price	81.25% to 109.6%
	Trust preferred – real estate investment trust	22,996			Discounted cash flow		Constant prepayment rate	until maturity – 0.0%
					Market comparables
							Constant default rate	yr 1 – 4.1% to 10.6%
								yrs 2-3 – 4.6% to 5.5%
								yrs 4-6 – 1.0%
								yrs 7 to maturity – 0.50%
							Loss given default	60% to 100%
							Discount rate	5.5% to 15%
							(spread over forward LIBOR)
	Other (predominantly ABS CDOs)	25,800			Discounted cash flow		Constant default rate	0.01% to 100%
							Loss given default	70% to 92%
							Discount rate	9% to 22%
							(spread over forward LIBOR)
Schedule Of Assets With Fair Value Changes On Nonrecurring Basis	'
	(In thousands)	Fair value at September 30, 2014														Fair value at December 31, 2013
		Level 1			Level 2			Level 3				Total				Level 1				Level 2			Level 3			Total
	ASSETS
	HTM securities adjusted for OTTI	$	—		$	—		$	—			$	—			$	—			$	—		$	8,483		$	8,483
	Private equity investments, carried at cost	—			—			3,419				3,419				—				—			13,270			13,270
	Impaired loans	—			26,444			—				26,444				—				11,765			—			11,765
	Other real estate owned	—			7,398			—				7,398				—				24,684			—			24,684
		$	—		$	33,842		$	3,419			$	37,261			$	—			$	36,449		$	21,753		$	58,202
	The previous fair values may not be current as of the dates indicated, but rather as of the date the fair value change occurred, such as a charge for impairment. Accordingly, carrying values may not equal current fair value.
		Gains (losses) from fair value changes
	(In thousands)	Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2014			2013			2014				2013
	ASSETS
	HTM securities adjusted for OTTI	$	—		$	—		$	—			$	(403	)
	Private equity investments, carried at cost	(339		)	(2,826		)	(471		)		(4,254		)
	Impaired loans	(815		)	(35		)	(3,097		)		(1,463		)
	Other real estate owned	(3,088		)	(1,749		)	(6,259		)		(8,217		)
		$	(4,242	)	$	(4,610	)	$	(9,827	)		$	(14,337	)
Fair Value, by Balance Sheet Grouping [Table Text Block]	'
			September 30, 2014
	(In thousands)												Gross amounts not offset in the balance sheet
	Description		Gross amounts recognized			Gross amounts offset in the balance sheet			Net amounts presented in the balance sheet				Financial instruments				Cash collateral received/pledged				Net amount
	Assets:
	Federal funds sold and security resell agreements		$	355,844		$	—		$	355,844			$	—			$	—			$	355,844
	Derivatives (included in other assets)		54,720			—			54,720				(5,701		)		250				49,269
			$	410,564		$	—		$	410,564			$	(5,701	)		$	250			$	405,113
	Liabilities:
	Federal funds and other short-term borrowings		$	191,798		$	—		$	191,798			$	—			$	—			$	191,798
	Derivatives (included in other liabilities)		56,036			—			56,036				(5,701		)		(27,362		)		22,973
			$	247,834		$	—		$	247,834			$	(5,701	)		$	(27,362	)		$	214,771
			December 31, 2013
	(In thousands)												Gross amounts not offset in the balance sheet
	Description		Gross amounts recognized			Gross amounts offset in the balance sheet			Net amounts presented in the balance sheet				Financial instruments				Cash collateral received/pledged				Net amount
	Assets:
	Federal funds sold and security resell agreements		$	282,248		$	—		$	282,248			$	—			$	—			$	282,248
	Derivatives (included in other assets)		65,683			—			65,683				(11,650		)		2,210				56,243
			$	347,931		$	—		$	347,931			$	(11,650	)		$	2,210			$	338,491
	Liabilities:
	Federal funds and other short-term borrowings		$	340,348		$	—		$	340,348			$	—			$	—			$	340,348
	Derivatives (included in other liabilities)		68,397			—			68,397				(11,650		)		(26,997		)		29,750
			$	408,745		$	—		$	408,745			$	(11,650	)		$	(26,997	)		$	370,098
		September 30, 2014								December 31, 2013
	(In thousands)	Carrying			Estimated			Level		Carrying				Estimated				Level
		value			fair value					value				fair value
	Financial assets:
	HTM investment securities	$	609,758		$	642,529		3		$	588,981			$	609,547			3
	Loans and leases (including loans held for sale), net of allowance	39,238,657			39,148,605			3		38,468,402				38,088,242				3
	Financial liabilities:
	Time deposits	2,441,756			2,444,415			2		2,593,038				2,602,955				2
	Foreign deposits	310,264			310,344			2		1,980,161				1,979,805				2
	Long-term debt (less fair value hedges)	1,111,686			1,204,079			2		2,269,762				2,423,643				2

Commitments_Guarantees_And_Con1

Commitments, Guarantees, And Contingent Liabilities (Tables)	9 Months Ended
	Sep. 30, 2014
Guarantees, Commitments And Contingencies [Abstract]	'
Schedule Of Guarantees Issued	'
	(In thousands)	September 30,		December 31,
		2014		2013
	Net unfunded commitments to extend credit 1	$	16,600,064	$	16,174,326
	Standby letters of credit:
	Financial	721,045		779,811
	Performance	190,871		159,485
	Commercial letters of credit	33,819		80,218
	Total unfunded lending commitments	$	17,545,799	$	17,193,840

Retirement_Plans_Tables

Retirement Plans (Tables)	9 Months Ended
	Sep. 30, 2014
Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]	'
Schedule Of Net Periodic Benefit Cost (Credit) For Pension And Postretirement Plans	'
		Pension benefits						Supplemental				Postretirement						Pension benefits						Supplemental				Postretirement
								retirement				benefits												retirement				benefits
								benefits																benefits
	(In thousands)	Three Months Ended September 30,																Nine Months Ended September 30,
		2014			2013			2014		2013		2014			2013			2014			2013			2014		2013		2014			2013
	Service cost	$	—		$	—		$	—	$	—	$	8		$	8		$	—		$	—		$	—	$	—	$	23		$	24
	Interest cost	1,869			1,721			113		101		12			10			5,608			5,164			340		303		35			31
	Expected return on plan assets	(3,326		)	(3,027		)											(9,979		)	(9,082		)
	Amortization of prior service							13		31		—			(37		)							38		93		—			(113		)
	cost (credit)
	Amortization of net actuarial	735			2,033			5		17		(18		)	(19		)	2,206			6,099			14		52		(53		)	(56		)
	(gain) loss
	Net periodic benefit cost (credit)	$	(722	)	$	727		$	131	$	149	$	2		$	(38	)	$	(2,165	)	$	2,181		$	392	$	448	$	5		$	(114	)

Operating_Segment_Information_

Operating Segment Information (Tables)	9 Months Ended
	Sep. 30, 2014
Operating Segment Information [Abstract]	'
Schedule of Segment Reporting Information, by Segment	'
	(In millions)	Zions Bank						CB&T						Amegy						NBAZ						NSB
		2014			2013			2014			2013			2014			2013			2014			2013			2014			2013
	CONDENSED INCOME STATEMENT
	Net interest income	$	146.7		$	145.1		$	98.9		$	109.8		$	95.8		$	95.5		$	40.3		$	40.5		$	28.4		$	28.4
	Provision for loan losses	(27.7		)	(9.5		)	(10.1		)	(3.0		)	(3.5		)	12.8			(4.5		)	(7.3		)	(4.9		)	—
	Net interest income after provision for loan losses	174.4			154.6			109			112.8			99.3			82.7			44.8			47.8			33.3			28.4
	Net impairment losses on investment securities	—			—			—			—			—			—			—			—			—			—
	Loss on sale of investment securities to Parent	—			—			—			—			—			—			—			—			—			—
	Other noninterest income	44.8			47.7			17.5			20.8			39.4			37.1			9.6			8.6			9.6			11.4
	Noninterest expense	123.4			119.1			77.1			75.9			79.1			75.3			33.2			35.3			31.8			32
	Income (loss) before income taxes	95.8			83.2			49.4			57.7			59.6			44.5			21.2			21.1			11.1			7.8
	Income tax expense (benefit)	35.4			30.2			19.1			23			20.4			14.9			7.9			7.7			3.7			2.6
	Net income (loss)	$	60.4		$	53		$	30.3		$	34.7		$	39.2		$	29.6		$	13.3		$	13.4		$	7.4		$	5.2
	AVERAGE BALANCE SHEET DATA
	Total assets	$	18,083		$	18,237		$	11,252		$	10,869		$	13,861		$	13,453		$	4,710		$	4,624		$	4,074		$	4,022
	Cash and due from banks	323			339			134			164			172			255			73			70			95			87
	Money market investments	3,079			3,868			1,577			1,288			2,555			2,823			401			444			738			883
	Total securities	1,814			1,287			258			321			266			285			380			320			799			785
	Total loans	12,312			12,271			8,520			8,328			9,721			8,981			3,660			3,600			2,318			2,158
	Total deposits	15,829			15,951			9,592			9,261			11,384			11,024			4,081			3,945			3,670			3,600
	Shareholder’s equity:
	Preferred equity	280			280			162			162			226			248			85			153			50			90
	Common equity	1,578			1,530			1,386			1,326			1,903			1,805			465			410			330			310
	Total shareholder’s equity	1,858			1,810			1,548			1,488			2,129			2,053			550			563			380			400
		Vectra						TCBW						Other						Consolidated
																				Company
		2014			2013			2014			2013			2014			2013			2014			2013
	CONDENSED INCOME STATEMENT
	Net interest income	$	25.4		$	25.8		$	7.6		$	7		$	(26.4	)	$	(36.6	)	$	416.7		$	415.5
	Provision for loan losses	(3.2		)	1.8			(0.6		)	(0.3		)	(0.2		)	(0.1		)	(54.7		)	(5.6		)
	Net interest income after provision for loan losses	28.6			24			8.2			7.3			(26.2		)	(36.5		)	471.4			421.1
	Net impairment losses on investment securities	—			—			—			—			—			(9.1		)	—			(9.1		)
	Loss on sale of investment	—			—			—			(2.7		)	—			2.7			—			—
	securities to Parent
	Other noninterest income	6			6.5			1			1			(11.9		)	(1.8		)	116			131.3
	Noninterest expense	24.2			24.4			4.7			4.8			65			3.9			438.5			370.7
	Income (loss) before income taxes	10.4			6.1			4.5			0.8			(103.1		)	(48.6		)	148.9			172.6
	Income tax expense (benefit)	3.6			2.1			1.5			0.3			(38.5		)	(19.7		)	53.1			61.1
	Net income (loss)	$	6.8		$	4		$	3		$	0.5		$	(64.6	)	$	(28.9	)	$	95.8		$	111.5
	AVERAGE BALANCE SHEET DATA
	Total assets	$	2,751		$	2,630		$	892		$	882		$	505		$	798		$	56,128		$	55,515
	Cash and due from banks	41			48			27			19			(3		)	(6		)	862			976
	Money market investments	176			127			127			121			(164		)	(100		)	8,489			9,454
	Total securities	152			184			73			101			305			592			4,047			3,875
	Total loans	2,319			2,195			654			627			64			64			39,568			38,224
	Total deposits	2,339			2,258			759			743			(1,364		)	(1,194		)	46,290			45,588
	Shareholder’s equity:
	Preferred equity	26			70			3			3			172			680			1,004			1,686
	Common equity	307			241			93			86			159			(518		)	6,221			5,190
	Total shareholder’s equity	333			311			96			89			331			162			7,225			6,876

Basis_of_Presentaion_Details

Basis of Presentaion (Details)	Sep. 30, 2014
	States
Basis Of Presentation [Abstract]	'
Number of States in which Entity Operates	11

Supplemental_Cash_Flow_Informa2

Supplemental Cash Flow Information (Schedule Of Noncash Activities) (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
Other Significant Noncash Transactions [Line Items]	'	'	'	'
Loans Transfered to Other Real Estate Owned	$8,954	$12,098	$20,197	$52,916
Transfer of Portfolio Loans and Leases to Held-for-sale	9,658	113	14,739	36,301
Beneficial Conversion Feature Transferred From Common Stock to Preferred Stock as a Result of Subordinated Debt Conversions	0	0	5	206
Subordinated debt converted to preferred stock	0	0	31	1,210
PreferredStockTransferredToCommonStockAsAAresultOfPreferredStockRedeumption	0	580	0	580
PreferredStockTransferredToRetainedEarningsAsAResultOfPreferredStockRedemption	$0	$125,700	$0	$125,700

Offsetting_Assets_and_Liabilit2

Offsetting Assets and Liabilities (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Federal Funds Sold and Securities Borrowed or Purchased under Agreements to Resell [Member] | Assets [Member]	'	'
Offsetting Assets [Line Items]	'	'
Net amount	$355,844	$282,248
Gross amounts recognized	355,844	282,248
Gross amounts offset in the balance sheet	0	0
Net amounts presented in the balance sheet	355,844	282,248
Gross amounts not offset in the balance sheet	0	0
Cash Collateral Received/Pledged	0	0
Derivative Financial Instruments, Assets [Member] | Assets [Member]	'	'
Offsetting Assets [Line Items]	'	'
Net amount	49,269	56,243
Gross amounts recognized	54,720	65,683
Gross amounts offset in the balance sheet	0	0
Net amounts presented in the balance sheet	54,720	65,683
Gross amounts not offset in the balance sheet	-5,701	-11,650
Cash Collateral Received/Pledged	250	2,210
Assets, Total [Member] | Assets [Member]	'	'
Offsetting Assets [Line Items]	'	'
Net amount	405,113	338,491
Gross amounts recognized	410,564	347,931
Gross amounts offset in the balance sheet	0	0
Net amounts presented in the balance sheet	410,564	347,931
Gross amounts not offset in the balance sheet	-5,701	-11,650
Cash Collateral Received/Pledged	250	2,210
Federal Funds Purchased and Securities Sold under Agreements to Repurchase [Member] | Other Liabilities [Member]	'	'
Offsetting Assets [Line Items]	'	'
Net amount	191,798	340,348
Gross amounts recognized	191,798	340,348
Gross amounts offset in the balance sheet	0	0
Net amounts presented in the balance sheet	191,798	340,348
Gross amounts not offset in the balance sheet	0	0
Cash Collateral Received/Pledged	0	0
Derivative Financial Instruments, Liabilities [Member] | Other Liabilities [Member]	'	'
Offsetting Assets [Line Items]	'	'
Net amount	22,973	29,750
Gross amounts recognized	56,036	68,397
Gross amounts offset in the balance sheet	0	0
Net amounts presented in the balance sheet	56,036	68,397
Gross amounts not offset in the balance sheet	-5,701	-11,650
Cash Collateral Received/Pledged	-27,362	-26,997
Liabilities, Total [Member] | Other Liabilities [Member]	'	'
Offsetting Assets [Line Items]	'	'
Net amount	214,771	370,098
Gross amounts recognized	247,834	408,745
Gross amounts offset in the balance sheet	0	0
Net amounts presented in the balance sheet	247,834	408,745
Gross amounts not offset in the balance sheet	-5,701	-11,650
Cash Collateral Received/Pledged	($27,362)	($26,997)

Investment_Securities_Narrativ

Investment Securities (Narrative) (Details) (USD $)	1 Months Ended	3 Months Ended			9 Months Ended
	Feb. 12, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Sep. 30, 2014	Dec. 31, 2013
		Securities			Securities	Securities
Investment [Line Items]	'	'	'	'	'	'
Other Noninterest Bearing Investments Nonmarketable Equity Securities Gross Gains	'	$4,400,000	'	'	'	'
Nonmarketable equity securities and other noninterest-bearing investments, sale	'	6,500,000	'	'	'	'
Private equity investments prohibited by Volker rule	'	51,000,000	'	'	51,000,000	'
Number of HTM investment securities in an unrealized loss position	'	53	'	'	53	157
Number of AFS investment securities in an unrealized loss position	'	395	'	'	395	317
Carrying value of pledged securities	'	1,200,000,000	'	'	1,200,000,000	1,500,000,000
Par Value of CDO Securities Sold	631,000,000	239,000,000	'	993,000,000	'	'
Net Gains on Sales of CDOs	'	5,000,000	5,000,000	31,000,000	'	'
Par Value of CDO Securities paydown	'	37,000,000	25,000,000	'	'	'
amortized cost of investment securities	'	174,000,000	'	'	174,000,000	'
Par Amount of Primarily Insurance CDOs Sold	'	'	'	'	301,000,000	'
Realized Losses on Sales of CDOs	'	($19,000,000)	'	'	'	'

Investment_Securities_Summary_

Investment Securities (Summary Of Investment Securities) (Details) (USD $)	0 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Investment [Line Items]	'	'
Held-to-maturity, fair value	$642,529	$609,547
Held-to-maturity, Amortized cost	649,929	630,574
Held To Maturity Securities Gross Unrealized Gains	0	'
Held To Maturity Securities Gross Unrealized Gains Losses 1	'	0
Held To Maturity Securities Gross Unrealized Losses	40,171	'
Held To Maturity Securities Gross Unrealized Losses 1	'	41,593
Held-to-maturity, Carrying value	609,758	588,981
Available-for-sale debt securities, Amortized cost	3,495,139	3,661,627
Available-For-Sale Debt Securities, Gross Unrealized Gains, Recognized In O C I	41,248	'
Available-For-Sale Debt Securities, Gross Unrealized Losses, Recognized In O C I	144,611	'
Available-For-Sale Securities, Debt Securities, Net Carrying Amount	3,391,776	'
Available-for-sale debt securities, Estimated fair value	3,391,776	3,421,683
Available-for-sale Securities, Gross Unrealized Gain	41,303	48,345
Gross Unrealized Gains on Debt Securities	'	48,324
Gross Unrealized Losses on AFS Debt Securities	'	288,268
Available-for-sale equity securities, Carrying value	'	3,421,683
Available-for-sale, Amortized cost	3,669,002	3,949,230
Available-for-sale, Gross unrealized losses, Recognized in OCI	146,897	295,689
Carrying value	3,563,408	3,701,886
Available-for-sale securities, Estimated fair value	3,563,408	3,701,886
Held-to-maturity Securities, Unrecognized Holding Gain	34,561	26,490
Held-to-maturity Securities, Unrecognized Holding Loss	1,790	5,924
amortized cost of investment securities	4,318,931	4,579,804
Gross Unrealized Gains of Investment Securities Recognized in OCI	41,303	48,345
Gross Unrealized Losses of Investment Securities Recognized in OCI	187,068	337,282
Carrying Value of Investment Securities	4,173,166	4,290,867
Estimated Fair Value of Investment Securities	4,205,937	4,311,433
Municipal Securities [Member]	'	'
Investment [Line Items]	'	'
Held-to-maturity, fair value	583,794	557,734
Held-to-maturity, Amortized cost	570,527	551,055
Held To Maturity Securities Gross Unrealized Gains	0	'
Held To Maturity Securities Gross Unrealized Gains Losses 1	'	0
Held To Maturity Securities Gross Unrealized Losses	0	'
Held To Maturity Securities Gross Unrealized Losses 1	'	0
Held-to-maturity, Carrying value	570,527	551,055
Available-for-sale debt securities, Amortized cost	187,792	65,425
Available-For-Sale Debt Securities, Gross Unrealized Gains, Recognized In O C I	1,300	'
Available-For-Sale Debt Securities, Gross Unrealized Losses, Recognized In O C I	731	'
Available-For-Sale Securities, Debt Securities, Net Carrying Amount	188,361	66,264
Available-for-sale debt securities, Estimated fair value	188,361	66,264
Available-for-sale Securities, Gross Unrealized Gain	'	1,329
Available-for-sale, Gross unrealized losses, Recognized in OCI	'	490
Held-to-maturity Securities, Unrecognized Holding Gain	14,096	11,295
Held-to-maturity Securities, Unrecognized Holding Loss	829	4,616
Trust Preferred Securities - Banks And Insurance [Member] | Asset-Backed Securities [Member]	'	'
Investment [Line Items]	'	'
Held-to-maturity, fair value	58,635	51,713
Held-to-maturity, Amortized cost	79,302	79,419
Held To Maturity Securities Gross Unrealized Gains	0	'
Held To Maturity Securities Gross Unrealized Gains Losses 1	'	0
Held To Maturity Securities Gross Unrealized Losses	40,171	'
Held To Maturity Securities Gross Unrealized Losses 1	'	41,593
Held-to-maturity, Carrying value	39,131	37,826
Available-for-sale debt securities, Amortized cost	708,716	'
Available-For-Sale Debt Securities, Gross Unrealized Gains, Recognized In O C I	9,071	'
Available-For-Sale Debt Securities, Gross Unrealized Losses, Recognized In O C I	129,284	'
Available-For-Sale Securities, Debt Securities, Net Carrying Amount	588,503	'
Available-for-sale debt securities, Estimated fair value	588,503	'
Available-for-sale Securities, Gross Unrealized Gain	'	13,439
Available-for-sale equity securities, Carrying value	'	1,238,820
Available-for-sale, Amortized cost	'	1,508,224
Available-for-sale, Gross unrealized losses, Recognized in OCI	'	282,843
Available-for-sale securities, Estimated fair value	'	1,238,820
Held-to-maturity Securities, Unrecognized Holding Gain	20,465	15,195
Held-to-maturity Securities, Unrecognized Holding Loss	961	1,308
Other [Member] | Asset-Backed Securities [Member]	'	'
Investment [Line Items]	'	'
Available-for-sale debt securities, Amortized cost	635	'
Available-For-Sale Debt Securities, Gross Unrealized Gains, Recognized In O C I	153	'
Available-For-Sale Debt Securities, Gross Unrealized Losses, Recognized In O C I	0	'
Available-For-Sale Securities, Debt Securities, Net Carrying Amount	788	'
Available-for-sale debt securities, Estimated fair value	788	'
Available-for-sale Securities, Gross Unrealized Gain	'	359
Available-for-sale equity securities, Carrying value	'	27,899
Available-for-sale, Amortized cost	'	27,540
Available-for-sale, Gross unrealized losses, Recognized in OCI	'	0
Available-for-sale securities, Estimated fair value	'	27,899
Other Debt Securities [Member] | Asset-Backed Securities [Member]	'	'
Investment [Line Items]	'	'
Held-to-maturity, fair value	100	100
Held-to-maturity, Amortized cost	100	100
Held To Maturity Securities Gross Unrealized Gains	0	'
Held To Maturity Securities Gross Unrealized Gains Losses 1	'	0
Held To Maturity Securities Gross Unrealized Losses	0	'
Held To Maturity Securities Gross Unrealized Losses 1	'	0
Held-to-maturity, Carrying value	100	100
Held-to-maturity Securities, Unrecognized Holding Gain	0	0
Held-to-maturity Securities, Unrecognized Holding Loss	0	0
U.S. Treasury Securities [Member]	'	'
Investment [Line Items]	'	'
Available-for-sale debt securities, Amortized cost	1,530	1,442
Available-For-Sale Debt Securities, Gross Unrealized Gains, Recognized In O C I	16	'
Available-For-Sale Debt Securities, Gross Unrealized Losses, Recognized In O C I	0	'
Available-For-Sale Securities, Debt Securities, Net Carrying Amount	1,546	1,546
Available-for-sale debt securities, Estimated fair value	1,546	1,546
Available-for-sale Securities, Gross Unrealized Gain	'	104
Available-for-sale, Gross unrealized losses, Recognized in OCI	'	0
Agency Securities [Member]	'	'
Investment [Line Items]	'	'
Available-for-sale debt securities, Amortized cost	617,844	517,905
Available-For-Sale Debt Securities, Gross Unrealized Gains, Recognized In O C I	1,992	'
Available-For-Sale Debt Securities, Gross Unrealized Losses, Recognized In O C I	7,861	'
Available-For-Sale Securities, Debt Securities, Net Carrying Amount	611,975	518,924
Available-for-sale debt securities, Estimated fair value	611,975	518,924
Available-for-sale Securities, Gross Unrealized Gain	'	1,920
Available-for-sale, Gross unrealized losses, Recognized in OCI	'	901
Agency Guaranteed Mortgage-Backed Securities [Member]	'	'
Investment [Line Items]	'	'
Available-for-sale debt securities, Amortized cost	465,516	308,687
Available-For-Sale Debt Securities, Gross Unrealized Gains, Recognized In O C I	10,593	'
Available-For-Sale Debt Securities, Gross Unrealized Losses, Recognized In O C I	596	'
Available-For-Sale Securities, Debt Securities, Net Carrying Amount	475,513	317,376
Available-for-sale debt securities, Estimated fair value	475,513	317,376
Available-for-sale Securities, Gross Unrealized Gain	'	9,926
Available-for-sale, Gross unrealized losses, Recognized in OCI	'	1,237
Small Business Administration Loan-Backed Securities [Member]	'	'
Investment [Line Items]	'	'
Available-for-sale debt securities, Amortized cost	1,507,510	1,202,901
Available-For-Sale Debt Securities, Gross Unrealized Gains, Recognized In O C I	18,005	'
Available-For-Sale Debt Securities, Gross Unrealized Losses, Recognized In O C I	6,139	'
Available-For-Sale Securities, Debt Securities, Net Carrying Amount	1,519,376	1,221,259
Available-for-sale debt securities, Estimated fair value	1,519,376	1,221,259
Available-for-sale Securities, Gross Unrealized Gain	'	21,129
Available-for-sale, Gross unrealized losses, Recognized in OCI	'	2,771
Trust Preferred Securities - Real Estate Investment Trusts [Member] | Asset-Backed Securities [Member]	'	'
Investment [Line Items]	'	'
Available-for-sale Securities, Gross Unrealized Gain	'	0
Available-for-sale equity securities, Carrying value	'	22,996
Available-for-sale, Amortized cost	'	22,996
Available-for-sale, Gross unrealized losses, Recognized in OCI	'	0
Available-for-sale securities, Estimated fair value	'	22,996
Auction Rate Securities [Member] | Asset-Backed Securities [Member]	'	'
Investment [Line Items]	'	'
Available-for-sale debt securities, Amortized cost	5,596	'
Available-For-Sale Debt Securities, Gross Unrealized Gains, Recognized In O C I	118	'
Available-For-Sale Debt Securities, Gross Unrealized Losses, Recognized In O C I	0	'
Available-For-Sale Securities, Debt Securities, Net Carrying Amount	5,714	'
Available-for-sale debt securities, Estimated fair value	5,714	'
Available-for-sale Securities, Gross Unrealized Gain	'	118
Available-for-sale equity securities, Carrying value	'	6,599
Available-for-sale, Amortized cost	'	6,507
Available-for-sale, Gross unrealized losses, Recognized in OCI	'	26
Available-for-sale securities, Estimated fair value	'	6,599
Mutual Funds And Other [Member]	'	'
Investment [Line Items]	'	'
Available-for-sale Securities, Gross Unrealized Gain	'	21
Available-for-sale, Amortized cost	'	287,603
Available-for-sale, Gross unrealized losses, Recognized in OCI	'	7,421
Carrying value	'	280,203
Available-for-sale securities, Estimated fair value	'	280,203
Mutual Funds And Stock [Member]	'	'
Investment [Line Items]	'	'
Available-for-sale Securities, Gross Unrealized Gain	55	'
Available-for-sale, Amortized cost	173,863	'
Available-for-sale, Gross unrealized losses, Recognized in OCI	2,286	'
Carrying value	171,632	'
Available-for-sale securities, Estimated fair value	$171,632	'

Investment_Securities_Contract

Investment Securities (Contractual Maturities Debt Securities) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Investments [Abstract]	'	'
Held-to-maturity, Due in one year or less, Amortized cost	$77,219	'
Held-to-maturity, Due in one year or less, Estimated fair value	77,458	'
Held-to-maturity, Due after one year through five years, Amortized cost	199,307	'
Held-to-maturity, Due after one year through five years, Estimated fair value	205,355	'
Held-to-maturity, Due after five years through ten years, Amortized cost	139,558	'
Held-to-maturity, Due after five years through ten years, Estimated fair value	143,066	'
Held-to-maturity, Due after ten years, Amortized cost	233,845	'
Held-to-maturity, Due after ten years, Estimated fair value	216,650	'
Held-to-maturity, Amortized cost	649,929	630,574
Held-to-maturity, fair value	642,529	609,547
Available-for-sale, Due in one year or less, Amortized cost	528,660	'
Available-for-sale, Due in one year or less, Estimated fair value	519,418	'
Available-for-sale, Due after one year through five years, Amortized cost	1,328,670	'
Available-for-sale, Due after one year through five years, Estimated fair value	1,323,839	'
Available-for-sale, Due after five years through ten years, Amortized cost	805,257	'
Available-for-sale, Due after five years through ten years, Estimated fair value	797,432	'
Available-for-sale, Due after ten years, Amortized cost	832,552	'
Available-for-sale, Due after ten years, Estimated fair value	751,087	'
Available-for-sale, Amortized cost	3,495,139	3,661,627
Available-for-sale, Estimated fair value	$3,391,776	$3,421,683

Investment_Securities_Summary_1

Investment Securities (Summary Of Amount Of Gross Unrealized Losses For Debt Securities And Estimated Fair Value) (Details) (USD $)	9 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Investment [Line Items]	'	'
Available-for-sale, Less than 12 months - Gross unrealized losses	$11,769	$7,328
Available-for-sale, Less than 12 months - Estimated fair value	901,973	386,486
Available-for-sale, 12 months or more - Gross unrealized losses	135,128	288,361
Available-for-sale, 12 months or more - Estimated fair value	728,128	1,001,740
Available-for-sale, Total - Gross unrealized losses	146,897	295,689
Available-for-sale, Total - Estimated fair value	1,630,101	1,388,226
Investment Securities Gross Unrealized Losses Less Than 12 Months	12,098	11,353
Investment Securities Estimated Fair Value Less Than 12 Months	917,611	456,886
Investment Securities Gross Unrealized Losses 12 Months or More	176,760	331,853
Investment Securities Estimated Fair Value 12 Months or More	804,005	1,062,162
Investment Securities Gross Unrealized Losses Total	188,858	343,206
Investment Securities Estimated Fair Value Total	1,721,616	1,519,048
Municipal Securities [Member]	'	'
Investment [Line Items]	'	'
Held-to-maturity, Less than 12 months - Gross unrealized losses	275	4,025
Held-to-maturity, Less than 12 months - Estimated fair value	15,546	70,400
Held-to-maturity, 12 months or more - Gross unrealized losses	554	591
Held-to-maturity, 12 months or more - Estimated fair value	17,334	9,103
Held-to-maturity, Total - Gross unrealized losses	829	4,616
Held-to-maturity, Total - Estimated fair value	32,880	79,503
Available-for-sale, Less than 12 months - Gross unrealized losses	164	73
Available-for-sale, Less than 12 months - Estimated fair value	23,538	8,834
Available-for-sale, 12 months or more - Gross unrealized losses	567	417
Available-for-sale, 12 months or more - Estimated fair value	4,381	3,179
Available-for-sale, Total - Gross unrealized losses	731	490
Available-for-sale, Total - Estimated fair value	27,919	12,013
Agency Securities [Member]	'	'
Investment [Line Items]	'	'
Available-for-sale, Less than 12 months - Gross unrealized losses	6,936	828
Available-for-sale, Less than 12 months - Estimated fair value	336,846	47,862
Available-for-sale, 12 months or more - Gross unrealized losses	925	73
Available-for-sale, 12 months or more - Estimated fair value	25,295	5,874
Available-for-sale, Total - Gross unrealized losses	7,861	901
Available-for-sale, Total - Estimated fair value	362,141	53,736
Agency Guaranteed Mortgage-Backed Securities [Member]	'	'
Investment [Line Items]	'	'
Available-for-sale, Less than 12 months - Gross unrealized losses	264	1,231
Available-for-sale, Less than 12 months - Estimated fair value	87,575	64,533
Available-for-sale, 12 months or more - Gross unrealized losses	332	6
Available-for-sale, 12 months or more - Estimated fair value	15,809	935
Available-for-sale, Total - Gross unrealized losses	596	1,237
Available-for-sale, Total - Estimated fair value	103,384	65,468
Small Business Administration Loan-Backed Securities [Member]	'	'
Investment [Line Items]	'	'
Available-for-sale, Less than 12 months - Gross unrealized losses	3,741	1,709
Available-for-sale, Less than 12 months - Estimated fair value	426,197	187,680
Available-for-sale, 12 months or more - Gross unrealized losses	2,398	1,062
Available-for-sale, 12 months or more - Estimated fair value	127,107	39,256
Available-for-sale, Total - Gross unrealized losses	6,139	2,771
Available-for-sale, Total - Estimated fair value	553,304	226,936
Mutual Funds And Other [Member]	'	'
Investment [Line Items]	'	'
Available-for-sale, Less than 12 months - Gross unrealized losses	664	943
Available-for-sale, Less than 12 months - Estimated fair value	27,817	24,057
Available-for-sale, 12 months or more - Gross unrealized losses	1,622	6,478
Available-for-sale, 12 months or more - Estimated fair value	48,471	103,614
Available-for-sale, Total - Gross unrealized losses	2,286	7,421
Available-for-sale, Total - Estimated fair value	76,288	127,671
Held-to-maturity Securities [Member]	'	'
Investment [Line Items]	'	'
Held-to-maturity, Less than 12 months - Gross unrealized losses	329	4,025
Held-to-maturity, Less than 12 months - Estimated fair value	15,638	70,400
Held-to-maturity, 12 months or more - Gross unrealized losses	41,632	43,492
Held-to-maturity, 12 months or more - Estimated fair value	75,877	60,422
Held-to-maturity, Total - Gross unrealized losses	41,961	47,517
Held-to-maturity, Total - Estimated fair value	91,515	130,822
Available-for-sale Securities [Member]	'	'
Investment [Line Items]	'	'
Available-for-sale, Less than 12 months - Gross unrealized losses	11,105	6,385
Available-for-sale, Less than 12 months - Estimated fair value	874,156	362,429
Available-for-sale, 12 months or more - Gross unrealized losses	133,506	281,883
Available-for-sale, 12 months or more - Estimated fair value	679,657	898,126
Available-for-sale, Total - Gross unrealized losses	144,611	288,268
Available-for-sale, Total - Estimated fair value	1,553,813	1,260,555
Asset-Backed Securities [Member] | Trust Preferred Securities - Banks And Insurance [Member]	'	'
Investment [Line Items]	'	'
Held-to-maturity, Less than 12 months - Gross unrealized losses	54	0
Held-to-maturity, Less than 12 months - Estimated fair value	92	0
Held-to-maturity, 12 months or more - Gross unrealized losses	41,078	42,901
Held-to-maturity, 12 months or more - Estimated fair value	58,543	51,319
Held-to-maturity, Total - Gross unrealized losses	41,132	42,901
Held-to-maturity, Total - Estimated fair value	58,635	51,319
Available-for-sale, Less than 12 months - Gross unrealized losses	0	2,539
Available-for-sale, Less than 12 months - Estimated fair value	0	51,911
Available-for-sale, 12 months or more - Gross unrealized losses	129,284	280,304
Available-for-sale, 12 months or more - Estimated fair value	507,065	847,990
Available-for-sale, Total - Gross unrealized losses	129,284	282,843
Available-for-sale, Total - Estimated fair value	507,065	899,901
Asset-Backed Securities [Member] | Auction Rate Securities [Member]	'	'
Investment [Line Items]	'	'
Available-for-sale, Less than 12 months - Gross unrealized losses	0	5
Available-for-sale, Less than 12 months - Estimated fair value	0	1,609
Available-for-sale, 12 months or more - Gross unrealized losses	0	21
Available-for-sale, 12 months or more - Estimated fair value	0	892
Available-for-sale, Total - Gross unrealized losses	0	26
Available-for-sale, Total - Estimated fair value	$0	$2,501

Investment_Securities_Rollforw

Investment Securities (Rollforward Of Total Amount Of Credit-Related OTTI) (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
Investment [Line Items]	'	'	'	'
Balance of credit-related OTTI at beginning of period	($172,993)	($420,529)	($185,885)	($408,043)
Credit-related OTTI not previously recognized	0	-168	0	-571
Credit-related OTTI previously recognized when there is no intent to sell and no requirement to sell before recovery of amortized cost basis	0	-8,899	-27	-22,830
Subtotal of amounts recognized in earnings	0	-9,067	-27	-23,401
Reductions for securities sold during the period	44,929	0	57,848	1,848
Balance of credit-related OTTI at end of period	-128,064	-429,596	-128,064	-429,596
Held-to-maturity Securities [Member]	'	'	'	'
Investment [Line Items]	'	'	'	'
Balance of credit-related OTTI at beginning of period	-9,079	-13,952	-9,052	-13,549
Credit-related OTTI not previously recognized	0	0	0	-403
Credit-related OTTI previously recognized when there is no intent to sell and no requirement to sell before recovery of amortized cost basis	0	0	-27	0
Subtotal of amounts recognized in earnings	0	0	-27	-403
Reductions for securities sold during the period	0	0	0	0
Balance of credit-related OTTI at end of period	-9,079	-13,952	-9,079	-13,952
Available-for-sale Securities [Member]	'	'	'	'
Investment [Line Items]	'	'	'	'
Balance of credit-related OTTI at beginning of period	-163,914	-406,577	-176,833	-394,494
Credit-related OTTI not previously recognized	0	-168	0	-168
Credit-related OTTI previously recognized when there is no intent to sell and no requirement to sell before recovery of amortized cost basis	0	-8,899	0	-22,830
Subtotal of amounts recognized in earnings	0	-9,067	0	-22,998
Reductions for securities sold during the period	44,929	0	57,848	1,848
Balance of credit-related OTTI at end of period	($118,985)	($415,644)	($118,985)	($415,644)

Investment_Securities_Gains_An

Investment Securities (Gains And Losses, Including OTTI, Recognized In Statement Of Income) (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
Investments [Abstract]	'	'	'	'
Investment securities, Held-to-maturity, Gross gains	$2	$32	$2	$63
Other than Temporary Impairment Losses, Investments, Held-to-maturity Securities	0	0	27	403
Investment securities, Available-for-sale, Gross gains	5,873	1,551	83,466	7,989
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net, Available-for-sale Securities	20,063	9,070	62,948	27,324
Other noninterest-bearing investments, Nonmarketable equity securities, Gross gains	5,911	4,802	10,568	9,868
Other noninterest-bearing investments, Nonmarketable equity securities, Gross losses	5,184	1,637	5,184	1,662
Total investment securities and other noninterest-bearing investments, Gross gains	11,786	6,385	94,036	17,920
Total investment securities and other noninterest-bearing investments, Gross losses	25,247	10,707	68,159	29,389
Net losses	-13,461	-4,322	25,877	-11,469
Net impairment losses on investment securities	0	-9,067	-27	-23,401
Equity securities gains (losses)	440	3,165	3,865	8,206
Fixed income securities gains (losses), net	($13,901)	$1,580	$22,039	$3,726

Investment_Securities_Taxable_

Investment Securities Taxable and Nontaxable Interest Income by Investment Type (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
Noninterest Income	$24,377	$24,866	$76,973	$77,903
Taxable [Member]	'	'	'	'
Noninterest Income	20,895	21,507	66,696	67,759
Nontaxable [Member]	'	'	'	'
Noninterest Income	3,482	3,359	10,277	10,144
Held-to-maturity Securities [Member]	'	'	'	'
Noninterest Income	6,402	7,739	19,594	23,559
Held-to-maturity Securities [Member] | Taxable [Member]	'	'	'	'
Noninterest Income	3,597	4,872	11,146	14,957
Held-to-maturity Securities [Member] | Nontaxable [Member]	'	'	'	'
Noninterest Income	2,805	2,867	8,448	8,602
Available-for-sale Securities [Member]	'	'	'	'
Noninterest Income	17,572	16,917	55,928	53,657
Available-for-sale Securities [Member] | Taxable [Member]	'	'	'	'
Noninterest Income	16,895	16,425	54,099	52,115
Available-for-sale Securities [Member] | Nontaxable [Member]	'	'	'	'
Noninterest Income	677	492	1,829	1,542
Trading Securities [Member]	'	'	'	'
Noninterest Income	403	210	1,451	687
Trading Securities [Member] | Taxable [Member]	'	'	'	'
Noninterest Income	403	210	1,451	687
Trading Securities [Member] | Nontaxable [Member]	'	'	'	'
Noninterest Income	$0	$0	$0	$0

Investment_Securities_Noncredi

Investment Securities Noncredit impairment recognized in Accumulated Other Comprehensive Income (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
Noncredit related impairment losses [Line Items]	'	'	'	'
Noncredit Related Losses On Securities Not Expected To Be Sold	$0	$1,403	$0	$23,472
Available-for-sale Securities [Member]	'	'	'	'
Noncredit related impairment losses [Line Items]	'	'	'	'
Noncredit Related Losses On Securities Not Expected To Be Sold	'	1,403	0	7,358
Held-to-maturity Securities [Member]	'	'	'	'
Noncredit related impairment losses [Line Items]	'	'	'	'
Noncredit Related Losses On Securities Not Expected To Be Sold	$0	$0	$0	$16,114

Loans_And_Allowance_For_Credit2

Loans And Allowance For Credit Losses (Narrative) (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2013
			M
			Payments
			D
			Billing_Cycles
Loans And Allowance For Credit Losses [Line Items]	'	'	'	'	'	'	'
Threshold for Internal risk grades assigned to commercial and commercial real estate loans	$750,000	'	$750,000	'	'	'	'
Unused Commitments to Extend Credit	4,400,000	'	4,400,000	'	'	'	5,600,000
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Provision for Loan Losses	'	-2,000,000	-2,500,000	-9,100,000	'	'	'
Document Fiscal Year Focus	'	'	'2014	'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	2,265,000	882,000	2,466,000	2,850,000	97,300,000	178,800,000	'
Unearned income and fees, net of related costs	147,300,000	'	147,300,000	'	'	'	141,700,000
Owner occupied and commercial real estate loans, unamortized premiums	39,200,000	'	39,200,000	'	'	'	47,200,000
Land Development Loans	497,900,000	'	497,900,000	'	'	'	561,300,000
Loans at carrying value pledged as collateral for current and potential borrowings	23,200,000,000	'	23,200,000,000	'	'	'	23,000,000,000
Payments for Origination and Purchases of Loans Held-for-sale	297,800,000	374,200,000	894,900,000	1,152,000,000	'	'	'
Loans and Leases Receivable, Gain (Loss) on Sales, Net	4,200,000	5,400,000	11,300,000	22,000,000	'	'	'
Construction and land development loans, decrease	447,000,000	'	'	'	'	'	'
Residential loans, increase	326,000,000	'	'	'	'	'	'
Loans purchased	-248,626,000	'	'	'	'	'	'
Principle amount of loans held for sale sold	341,300,000	421,000,000	939,000,000	1,315,300,000	'	'	'
Servicing Asset at Amortized Cost	0	'	0	'	'	'	0
Number of days for consumer loans to be charged off	'	'	180	'	'	'	'
Number of days for closed-end loans to be charged off	'	'	120	'	'	'	'
Minimum number of days past due for nonaccrual status	'	'	90	'	'	'	'
Minimum number of monthly payments in arrears when reporting past due	'	'	2	'	'	'	'
Minimum number of billing cycles in arrears when reported as past due	'	'	2	'	'	'	'
Minimum number of days unpaid when reported as past due	'	'	30	'	'	'	'
Threshold for nonaccrual loans for evaluation of impairment	'	'	1,000,000	'	'	'	'
Minimum number of months for borrower to meet terms For TDR status	'	'	6	'	'	'	'
Recorded investment in TDR loans modified with interest rates below market	166,500,000	'	166,500,000	'	'	'	172,600,000
Charge-offs (recoveries), net before FDIC indemnification	900,000	1,900,000	-800,000	2,500,000	'	'	'
Total reversal amount to ALLL	800,000	2,300,000	4,400,000	13,200,000	'	'	'
Additional interest income due to increased cash flows from acquired loans	7,700,000	15,000,000	37,900,000	62,400,000	'	'	'
Additional noninterest expense due to increased cash flows from acquired loans	5,900,000	13,000,000	31,200,000	55,100,000	'	'	'
Loss sharing reimbursement, minimum	80.00%	'	80.00%	'	'	'	'
Loss sharing reimbursement, maximum	95.00%	'	95.00%	'	'	'	'
FDIC Indemnification Asset	800,000	'	800,000	'	'	'	26,400,000
Provision for Loan and Lease Losses	-54,643,000	-5,573,000	-109,669,000	-56,598,000	'	'	'
Provision for Unfunded Lending Commitments	-16,095,000	19,935,000	-10,328,000	-22,662,000	'	'	'
10 year single family residential agreement	'	'	18,300,000	'	'	'	'
Commercial [Member]	'	'	'	'	'	'	'
Loans And Allowance For Credit Losses [Line Items]	'	'	'	'	'	'	'
Subsequent payment default period, number of days	'	'	90	'	'	'	'
Provision for Loan and Lease Losses	-20,073,000	-1,768,000	38,269,000	10,179,000	'	'	'
Provision for Unfunded Lending Commitments	1,651,000	-16,133,000	6,107,000	20,235,000	'	'	'
Consumer Portfolio Segment [Member]	'	'	'	'	'	'	'
Loans And Allowance For Credit Losses [Line Items]	'	'	'	'	'	'	'
Subsequent payment default period, number of days	'	'	60	'	'	'	'
Provision for Loan and Lease Losses	-422,000	569,000	14,522,000	12,725,000	'	'	'
Provision for Unfunded Lending Commitments	$3,356,000	$2,208,000	$3,249,000	$1,981,000	'	'	'

Loans_And_Allowance_For_Credit3

Loans And Allowance For Credit Losses (Summary Of Major Portfolio Segment And Specific Loan Class) (Details) (USD $)

3 Months Ended

9 Months Ended

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2013

Dec. 31, 2012

Financing Receivable, Allowance for Credit Losses [Line Items]

'

'

'

'

'

'

'

'

Balance at end of period

$610,277,000

$797,523,000

$610,277,000

$797,523,000

$675,907,000

$746,291,000

$813,912,000

$896,087,000

Loans held for sale

109,139,000

'

109,139,000

'

'

171,328,000

'

'

Commercial and industrial

12,896,517,000

'

12,896,517,000

'

'

12,481,083,000

'

'

Leasing

404,542,000

'

404,542,000

'

'

387,929,000

'

'

Owner occupied

7,334,498,000

'

7,334,498,000

'

'

7,437,195,000

'

'

Municipal

517,953,000

'

517,953,000

'

'

449,418,000

'

'

Total commercial

21,153,510,000

'

21,153,510,000

'

'

20,755,625,000

'

'

Construction and land development

1,892,723,000

'

1,892,723,000

'

'

2,182,821,000

'

'

Term

8,165,723,000

'

8,165,723,000

'

'

8,005,837,000

'

'

Total commercial real estate

10,058,446,000

'

10,058,446,000

'

'

10,188,658,000

'

'

Home equity credit line

2,255,172,000

'

2,255,172,000

'

'

2,133,120,000

'

'

1-4 family residential

5,152,872,000

'

5,152,872,000

'

'

4,736,665,000

'

'

Construction and other consumer real estate

350,248,000

'

350,248,000

'

'

324,922,000

'

'

Bankcard and other revolving plans

388,588,000

'

388,588,000

'

'

356,240,000

'

'

Other

190,518,000

'

190,518,000

'

'

197,864,000

'

'

Total consumer

8,337,398,000

'

8,337,398,000

'

'

7,748,811,000

'

'

FDIC-supported loans

190,441,000

'

190,441,000

'

'

350,271,000

'

'

Total loans

39,739,795,000

'

39,739,795,000

'

'

39,043,365,000

'

'

Provision for loan losses

54,643,000

5,573,000

109,669,000

56,598,000

'

'

'

'

Change In Allowance Covered By F D I C Indemnification

25,000

2,118,000

1,286,000

9,756,000

'

'

'

'

Allowance for Loan and Lease Losses, Write-offs

-26,471,000

-22,826,000

-70,666,000

-93,392,000

'

'

'

'

Allowance for Loan and Lease Losses, Recoveries of Bad Debts

15,509,000

14,128,000

45,607,000

61,182,000

'

'

'

'

Net loan and lease charge-offs

-10,962,000

-8,698,000

-25,059,000

-32,210,000

'

'

'

'

Reserve for unfunded lending commitments

79,377,000

84,147,000

79,377,000

84,147,000

95,472,000

89,705,000

104,082,000

106,809,000

Provision for Unfunded Lending Commitments

-16,095,000

19,935,000

-10,328,000

-22,662,000

'

'

'

'

Total allowance for credit losses

689,654,000

881,670,000

689,654,000

881,670,000

'

'

'

'

FDIC- Supported [Member]

'

'

'

'

'

'

'

'

Financing Receivable, Allowance for Credit Losses [Line Items]

'

'

'

'

'

'

'

'

Balance at end of period

2,647,000

[1]

5,731,000

[1]

2,647,000

[1]

5,731,000

[1]

3,877,000

[1]

6,918,000

[1]

5,915,000

[1]

12,547,000

[1]

Total loans

190,441,000

'

190,441,000

'

'

350,271,000

'

'

Provision for loan losses

-31,000

[1]

-146,000

[1]

-1,784,000

-676,000

[1]

'

'

'

'

Change In Allowance Covered By F D I C Indemnification

25,000

[1]

2,118,000

[1]

1,286,000

[1]

-9,756,000

[1]

'

'

'

'

Allowance for Loan and Lease Losses, Write-offs

-1,515,000

[1]

-88,000

[1]

-3,396,000

[1]

-1,676,000

[1]

'

'

'

'

Allowance for Loan and Lease Losses, Recoveries of Bad Debts

279,000

[1]

1,876,000

[1]

2,195,000

[1]

3,940,000

[1]

'

'

'

'

Net loan and lease charge-offs

-1,236,000

[1]

1,788,000

[1]

-1,201,000

[1]

2,264,000

[1]

'

'

'

'

Reserve for unfunded lending commitments

0

[1]

0

[1]

0

[1]

0

[1]

0

[1]

0

0

[1]

0

[1]

Provision for Unfunded Lending Commitments

0

[1]

0

[1]

0

[1]

0

[1]

'

'

'

'

Total allowance for credit losses

2,647,000

[1]

5,731,000

[1]

2,647,000

[1]

5,731,000

[1]

'

'

'

'

Consumer Portfolio Segment [Member]

'

'

'

'

'

'

'

'

Financing Receivable, Allowance for Credit Losses [Line Items]

'

'

'

'

'

'

'

'

Balance at end of period

44,080,000

68,509,000

44,080,000

68,509,000

44,535,000

60,865,000

70,366,000

95,656,000

Home equity credit line

2,255,172,000

'

2,255,172,000

'

'

2,133,120,000

'

'

1-4 family residential

5,152,872,000

'

5,152,872,000

'

'

4,736,665,000

'

'

Construction and other consumer real estate

350,248,000

'

350,248,000

'

'

324,922,000

'

'

Bankcard and other revolving plans

388,588,000

'

388,588,000

'

'

356,240,000

'

'

Other

190,518,000

'

190,518,000

'

'

197,864,000

'

'

Total consumer

8,337,398,000

'

8,337,398,000

'

'

7,748,811,000

'

'

Total loans

8,337,398,000

'

8,337,398,000

'

'

7,748,811,000

'

'

Provision for loan losses

422,000

-569,000

-14,522,000

-12,725,000

'

'

'

'

Change In Allowance Covered By F D I C Indemnification

'

0

0

0

'

'

'

'

Allowance for Loan and Lease Losses, Write-offs

-3,061,000

-5,535,000

-10,433,000

-24,574,000

'

'

'

'

Allowance for Loan and Lease Losses, Recoveries of Bad Debts

3,028,000

3,109,000

8,170,000

10,152,000

'

'

'

'

Net loan and lease charge-offs

-33,000

-2,426,000

-2,263,000

-14,422,000

'

'

'

'

Reserve for unfunded lending commitments

626,000

3,564,000

626,000

3,564,000

3,982,000

3,875,000

1,356,000

1,583,000

Provision for Unfunded Lending Commitments

3,356,000

2,208,000

3,249,000

1,981,000

'

'

'

'

Total allowance for credit losses

44,706,000

72,073,000

44,706,000

72,073,000

'

'

'

'

Commercial Real Estate [Member]

'

'

'

'

'

'

'

'

Financing Receivable, Allowance for Credit Losses [Line Items]

'

'

'

'

'

'

'

'

Balance at end of period

153,094,000

244,008,000

153,094,000

244,008,000

187,261,000

213,363,000

251,278,000

276,976,000

Term

8,165,723,000

'

8,165,723,000

'

'

8,005,837,000

'

'

Total commercial real estate

10,058,446,000

'

10,058,446,000

'

'

10,188,658,000

'

'

Total loans

10,058,446,000

'

10,058,446,000

'

'

10,188,658,000

'

'

Provision for loan losses

-34,179,000

4,520,000

-55,094,000

34,370,000

'

'

'

'

Change In Allowance Covered By F D I C Indemnification

'

0

0

0

'

'

'

'

Allowance for Loan and Lease Losses, Write-offs

-3,320,000

-5,738,000

-14,135,000

-19,069,000

'

'

'

'

Allowance for Loan and Lease Losses, Recoveries of Bad Debts

3,332,000

2,988,000

8,960,000

20,471,000

'

'

'

'

Net loan and lease charge-offs

12,000

-2,750,000

-5,175,000

1,402,000

'

'

'

'

Reserve for unfunded lending commitments

24,299,000

33,444,000

24,299,000

33,444,000

38,689,000

37,485,000

39,454,000

37,852,000

Provision for Unfunded Lending Commitments

14,390,000

6,010,000

13,186,000

4,408,000

'

'

'

'

Total allowance for credit losses

177,393,000

277,452,000

177,393,000

277,452,000

'

'

'

'

Commercial [Member]

'

'

'

'

'

'

'

'

Financing Receivable, Allowance for Credit Losses [Line Items]

'

'

'

'

'

'

'

'

Balance at end of period

410,456,000

479,275,000

410,456,000

479,275,000

440,234,000

465,145,000

486,353,000

510,908,000

Commercial and industrial

12,896,517,000

'

12,896,517,000

'

'

12,481,083,000

'

'

Leasing

404,542,000

'

404,542,000

'

'

387,929,000

'

'

Owner occupied

7,334,498,000

'

7,334,498,000

'

'

7,437,195,000

'

'

Municipal

517,953,000

'

517,953,000

'

'

449,418,000

'

'

Total commercial

21,153,510,000

'

21,153,510,000

'

'

20,755,625,000

'

'

Total loans

21,153,510,000

'

21,153,510,000

'

'

20,755,625,000

'

'

Provision for loan losses

20,073,000

1,768,000

-38,269,000

-10,179,000

'

'

'

'

Change In Allowance Covered By F D I C Indemnification

'

0

0

0

'

'

'

'

Allowance for Loan and Lease Losses, Write-offs

-18,575,000

-11,465,000

-42,702,000

-48,073,000

'

'

'

'

Allowance for Loan and Lease Losses, Recoveries of Bad Debts

8,870,000

6,155,000

26,282,000

26,619,000

'

'

'

'

Net loan and lease charge-offs

-9,705,000

-5,310,000

-16,420,000

-21,454,000

'

'

'

'

Reserve for unfunded lending commitments

54,452,000

47,139,000

54,452,000

47,139,000

52,801,000

48,345,000

63,272,000

67,374,000

Provision for Unfunded Lending Commitments

1,651,000

-16,133,000

6,107,000

20,235,000

'

'

'

'

Total allowance for credit losses

$464,908,000

$526,414,000

$464,908,000

$526,414,000

'

'

'

'

[1]

The Purchased Loans section following contains further discussion related to FDIC-supported/PCI loans.

Loans_And_Allowance_For_Credit4

Loans And Allowance For Credit Losses (Summary Of Changes In The Allowance For Credit Losses) (Details) (USD $)

3 Months Ended

9 Months Ended

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2013

Dec. 31, 2012

Financing Receivable, Allowance for Credit Losses [Line Items]

'

'

'

'

'

'

'

'

Allowance for Loan and Lease Losses, Provision for Loss, Gross

$54,643,000

$5,573,000

$109,669,000

$56,598,000

'

'

'

'

Change In Allowance Covered By F D I C Indemnification

-25,000

-2,118,000

-1,286,000

-9,756,000

'

'

'

'

Allowance for Loan and Lease Losses, Write-offs

-26,471,000

-22,826,000

-70,666,000

-93,392,000

'

'

'

'

Allowance for Credit Losses [Roll Forward]

'

'

'

'

'

'

'

'

Balance at beginning of period

675,907,000

813,912,000

746,291,000

896,087,000

'

'

'

'

Net loan and lease charge-offs

-10,962,000

-8,698,000

-25,059,000

-32,210,000

'

'

'

'

Balance at end of period

79,377,000

84,147,000

79,377,000

84,147,000

95,472,000

89,705,000

104,082,000

106,809,000

Allowance for loan losses

610,277,000

797,523,000

610,277,000

797,523,000

'

'

'

'

Reserve for unfunded lending commitments

79,377,000

84,147,000

79,377,000

84,147,000

95,472,000

89,705,000

104,082,000

106,809,000

Total allowance for credit losses

689,654,000

881,670,000

689,654,000

881,670,000

'

'

'

'

Allowance for Loan and Lease Losses, Recoveries of Bad Debts

15,509,000

14,128,000

45,607,000

61,182,000

'

'

'

'

Provision for Unfunded Lending Commitments

-16,095,000

19,935,000

-10,328,000

-22,662,000

'

'

'

'

Balance at end of period

610,277,000

797,523,000

610,277,000

797,523,000

'

'

'

'

Commercial [Member]

'

'

'

'

'

'

'

'

Financing Receivable, Allowance for Credit Losses [Line Items]

'

'

'

'

'

'

'

'

Allowance for Loan and Lease Losses, Provision for Loss, Gross

20,073,000

1,768,000

-38,269,000

-10,179,000

'

'

'

'

Change In Allowance Covered By F D I C Indemnification

'

0

0

0

'

'

'

'

Allowance for Loan and Lease Losses, Write-offs

-18,575,000

-11,465,000

-42,702,000

-48,073,000

'

'

'

'

Allowance for Credit Losses [Roll Forward]

'

'

'

'

'

'

'

'

Balance at beginning of period

440,234,000

486,353,000

465,145,000

510,908,000

'

'

'

'

Net loan and lease charge-offs

-9,705,000

-5,310,000

-16,420,000

-21,454,000

'

'

'

'

Balance at end of period

54,452,000

47,139,000

54,452,000

47,139,000

52,801,000

48,345,000

63,272,000

67,374,000

Allowance for loan losses

410,456,000

479,275,000

410,456,000

479,275,000

'

'

'

'

Reserve for unfunded lending commitments

54,452,000

47,139,000

54,452,000

47,139,000

52,801,000

48,345,000

63,272,000

67,374,000

Total allowance for credit losses

464,908,000

526,414,000

464,908,000

526,414,000

'

'

'

'

Allowance for Loan and Lease Losses, Recoveries of Bad Debts

8,870,000

6,155,000

26,282,000

26,619,000

'

'

'

'

Provision for Unfunded Lending Commitments

1,651,000

-16,133,000

6,107,000

20,235,000

'

'

'

'

Balance at end of period

410,456,000

479,275,000

410,456,000

479,275,000

'

'

'

'

Commercial Real Estate [Member]

'

'

'

'

'

'

'

'

Financing Receivable, Allowance for Credit Losses [Line Items]

'

'

'

'

'

'

'

'

Allowance for Loan and Lease Losses, Provision for Loss, Gross

-34,179,000

4,520,000

-55,094,000

34,370,000

'

'

'

'

Change In Allowance Covered By F D I C Indemnification

'

0

0

0

'

'

'

'

Allowance for Loan and Lease Losses, Write-offs

-3,320,000

-5,738,000

-14,135,000

-19,069,000

'

'

'

'

Allowance for Credit Losses [Roll Forward]

'

'

'

'

'

'

'

'

Balance at beginning of period

187,261,000

251,278,000

213,363,000

276,976,000

'

'

'

'

Net loan and lease charge-offs

12,000

-2,750,000

-5,175,000

1,402,000

'

'

'

'

Balance at end of period

24,299,000

33,444,000

24,299,000

33,444,000

38,689,000

37,485,000

39,454,000

37,852,000

Allowance for loan losses

153,094,000

244,008,000

153,094,000

244,008,000

'

'

'

'

Reserve for unfunded lending commitments

24,299,000

33,444,000

24,299,000

33,444,000

38,689,000

37,485,000

39,454,000

37,852,000

Total allowance for credit losses

177,393,000

277,452,000

177,393,000

277,452,000

'

'

'

'

Allowance for Loan and Lease Losses, Recoveries of Bad Debts

3,332,000

2,988,000

8,960,000

20,471,000

'

'

'

'

Provision for Unfunded Lending Commitments

14,390,000

6,010,000

13,186,000

4,408,000

'

'

'

'

Balance at end of period

153,094,000

244,008,000

153,094,000

244,008,000

'

'

'

'

Consumer Portfolio Segment [Member]

'

'

'

'

'

'

'

'

Financing Receivable, Allowance for Credit Losses [Line Items]

'

'

'

'

'

'

'

'

Allowance for Loan and Lease Losses, Provision for Loss, Gross

422,000

-569,000

-14,522,000

-12,725,000

'

'

'

'

Change In Allowance Covered By F D I C Indemnification

'

0

0

0

'

'

'

'

Allowance for Loan and Lease Losses, Write-offs

-3,061,000

-5,535,000

-10,433,000

-24,574,000

'

'

'

'

Allowance for Credit Losses [Roll Forward]

'

'

'

'

'

'

'

'

Balance at beginning of period

44,535,000

70,366,000

60,865,000

95,656,000

'

'

'

'

Net loan and lease charge-offs

-33,000

-2,426,000

-2,263,000

-14,422,000

'

'

'

'

Balance at end of period

626,000

3,564,000

626,000

3,564,000

3,982,000

3,875,000

1,356,000

1,583,000

Allowance for loan losses

44,080,000

68,509,000

44,080,000

68,509,000

'

'

'

'

Reserve for unfunded lending commitments

626,000

3,564,000

626,000

3,564,000

3,982,000

3,875,000

1,356,000

1,583,000

Total allowance for credit losses

44,706,000

72,073,000

44,706,000

72,073,000

'

'

'

'

Allowance for Loan and Lease Losses, Recoveries of Bad Debts

3,028,000

3,109,000

8,170,000

10,152,000

'

'

'

'

Provision for Unfunded Lending Commitments

3,356,000

2,208,000

3,249,000

1,981,000

'

'

'

'

Balance at end of period

44,080,000

68,509,000

44,080,000

68,509,000

'

'

'

'

FDIC- Supported [Member]

'

'

'

'

'

'

'

'

Financing Receivable, Allowance for Credit Losses [Line Items]

'

'

'

'

'

'

'

'

Allowance for Loan and Lease Losses, Provision for Loss, Gross

-31,000

[1]

-146,000

[1]

-1,784,000

-676,000

[1]

'

'

'

'

Change In Allowance Covered By F D I C Indemnification

-25,000

[1]

-2,118,000

[1]

-1,286,000

[1]

9,756,000

[1]

'

'

'

'

Allowance for Loan and Lease Losses, Write-offs

-1,515,000

[1]

-88,000

[1]

-3,396,000

[1]

-1,676,000

[1]

'

'

'

'

Allowance for Credit Losses [Roll Forward]

'

'

'

'

'

'

'

'

Balance at beginning of period

3,877,000

[1]

5,915,000

[1]

6,918,000

[1]

12,547,000

[1]

'

'

'

'

Net loan and lease charge-offs

-1,236,000

[1]

1,788,000

[1]

-1,201,000

[1]

2,264,000

[1]

'

'

'

'

Balance at end of period

0

[1]

0

[1]

0

[1]

0

[1]

0

[1]

0

0

[1]

0

[1]

Allowance for loan losses

2,647,000

[1]

5,731,000

[1]

2,647,000

[1]

5,731,000

[1]

'

'

'

'

Reserve for unfunded lending commitments

0

[1]

0

[1]

0

[1]

0

[1]

0

[1]

0

0

[1]

0

[1]

Total allowance for credit losses

2,647,000

[1]

5,731,000

[1]

2,647,000

[1]

5,731,000

[1]

'

'

'

'

Allowance for Loan and Lease Losses, Recoveries of Bad Debts

279,000

[1]

1,876,000

[1]

2,195,000

[1]

3,940,000

[1]

'

'

'

'

Provision for Unfunded Lending Commitments

0

[1]

0

[1]

0

[1]

0

[1]

'

'

'

'

Balance at end of period

$2,647,000

[1]

$5,731,000

[1]

$2,647,000

[1]

$5,731,000

[1]

'

'

'

'

[1]

The Purchased Loans section following contains further discussion related to FDIC-supported/PCI loans.

Loans_And_Allowance_For_Credit5

Loans And Allowance For Credit Losses (Summary Of ALLL And Outstanding Loan Balances According To The Company's Impairment Method) (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

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2013

Dec. 31, 2012

Financing Receivable, Allowance for Credit Losses [Line Items]

'

'

'

'

'

'

'

'

Impaired Financing Receivable, Average Recorded Investment

$829,533

$1,329,179

$853,216

$1,336,098

'

'

'

'

Impaired Financing Receivable, Interest Income, Accrual Method

14,387

25,242

58,263

94,456

'

'

'

'

Allowance for loan losses: Individually evaluated for impairment

-45,185

'

-45,185

'

'

-62,499

'

'

Allowance for loan losses: Collectively evaluated for impairment

562,486

'

562,486

'

'

677,266

'

'

Allowance for loan losses: Purchased loans with evidence of credit deterioration

2,606

'

2,606

'

'

6,526

'

'

Allowance for loan losses: Total

610,277

797,523

610,277

797,523

675,907

746,291

813,912

896,087

Outstanding loan balances: Individually evaluated for impairment

548,503

'

548,503

'

'

681,280

'

'

Outstanding loan balances: Collectively evaluated for impairment

39,006,336

'

39,006,336

'

'

38,051,001

'

'

Outstanding loan balances: Purchased loans with evidence of credit deterioration

184,956

'

184,956

'

'

311,084

'

'

Total loans

39,739,795

'

39,739,795

'

'

39,043,365

'

'

Commercial And Industrial [Member]

'

'

'

'

'

'

'

'

Financing Receivable, Allowance for Credit Losses [Line Items]

'

'

'

'

'

'

'

'

Impaired Financing Receivable, Average Recorded Investment

176,526

199,217

168,181

175,040

'

'

'

'

Impaired Financing Receivable, Interest Income, Accrual Method

1,232

1,105

2,812

2,594

'

'

'

'

Total loans

12,896,517

'

12,896,517

'

'

12,481,083

'

'

Owner Occupied [Member]

'

'

'

'

'

'

'

'

Financing Receivable, Allowance for Credit Losses [Line Items]

'

'

'

'

'

'

'

'

Impaired Financing Receivable, Average Recorded Investment

144,302

217,439

141,734

211,225

'

'

'

'

Impaired Financing Receivable, Interest Income, Accrual Method

777

915

2,252

2,810

'

'

'

'

Total loans

7,334,498

'

7,334,498

'

'

7,437,195

'

'

Commercial [Member]

'

'

'

'

'

'

'

'

Financing Receivable, Allowance for Credit Losses [Line Items]

'

'

'

'

'

'

'

'

Allowance for loan losses: Individually evaluated for impairment

-30,239

'

-30,239

'

'

-39,288

'

'

Allowance for loan losses: Collectively evaluated for impairment

380,217

'

380,217

'

'

425,857

'

'

Allowance for loan losses: Purchased loans with evidence of credit deterioration

0

'

0

'

'

0

'

'

Allowance for loan losses: Total

410,456

479,275

410,456

479,275

440,234

465,145

486,353

510,908

Outstanding loan balances: Individually evaluated for impairment

270,559

'

270,559

'

'

315,604

'

'

Outstanding loan balances: Collectively evaluated for impairment

20,882,951

'

20,882,951

'

'

20,440,021

'

'

Outstanding loan balances: Purchased loans with evidence of credit deterioration

0

'

0

'

'

0

'

'

Total loans

21,153,510

'

21,153,510

'

'

20,755,625

'

'

Commercial Real Estate [Member]

'

'

'

'

'

'

'

'

Financing Receivable, Allowance for Credit Losses [Line Items]

'

'

'

'

'

'

'

'

Allowance for loan losses: Individually evaluated for impairment

-5,874

'

-5,874

'

'

-12,510

'

'

Allowance for loan losses: Collectively evaluated for impairment

147,220

'

147,220

'

'

200,853

'

'

Allowance for loan losses: Purchased loans with evidence of credit deterioration

0

'

0

'

'

0

'

'

Allowance for loan losses: Total

153,094

244,008

153,094

244,008

187,261

213,363

251,278

276,976

Outstanding loan balances: Individually evaluated for impairment

183,579

'

183,579

'

'

262,907

'

'

Outstanding loan balances: Collectively evaluated for impairment

9,874,867

'

9,874,867

'

'

9,925,751

'

'

Outstanding loan balances: Purchased loans with evidence of credit deterioration

0

'

0

'

'

0

'

'

Total loans

10,058,446

'

10,058,446

'

'

10,188,658

'

'

Consumer Portfolio Segment [Member]

'

'

'

'

'

'

'

'

Financing Receivable, Allowance for Credit Losses [Line Items]

'

'

'

'

'

'

'

'

Allowance for loan losses: Individually evaluated for impairment

-9,072

'

-9,072

'

'

-10,701

'

'

Allowance for loan losses: Collectively evaluated for impairment

35,008

'

35,008

'

'

50,164

'

'

Allowance for loan losses: Purchased loans with evidence of credit deterioration

0

'

0

'

'

0

'

'

Allowance for loan losses: Total

44,080

68,509

44,080

68,509

44,535

60,865

70,366

95,656

Outstanding loan balances: Individually evaluated for impairment

94,360

'

94,360

'

'

101,545

'

'

Outstanding loan balances: Collectively evaluated for impairment

8,243,038

'

8,243,038

'

'

7,647,266

'

'

Outstanding loan balances: Purchased loans with evidence of credit deterioration

0

'

0

'

'

0

'

'

Total loans

8,337,398

'

8,337,398

'

'

7,748,811

'

'

FDIC- Supported [Member]

'

'

'

'

'

'

'

'

Financing Receivable, Allowance for Credit Losses [Line Items]

'

'

'

'

'

'

'

'

Allowance for loan losses: Individually evaluated for impairment

0

'

0

'

'

0

'

'

Allowance for loan losses: Collectively evaluated for impairment

41

'

41

'

'

392

'

'

Allowance for loan losses: Purchased loans with evidence of credit deterioration

2,606

'

2,606

'

'

6,526

'

'

Allowance for loan losses: Total

2,647

[1]

5,731

[1]

2,647

[1]

5,731

[1]

3,877

[1]

6,918

[1]

5,915

[1]

12,547

[1]

Outstanding loan balances: Individually evaluated for impairment

5

'

5

'

'

1,224

'

'

Outstanding loan balances: Collectively evaluated for impairment

5,480

'

5,480

'

'

37,963

'

'

Outstanding loan balances: Purchased loans with evidence of credit deterioration

184,956

'

184,956

'

'

311,084

'

'

Total loans

190,441

'

190,441

'

'

350,271

'

'

Municipal [Member]

'

'

'

'

'

'

'

'

Financing Receivable, Allowance for Credit Losses [Line Items]

'

'

'

'

'

'

'

'

Impaired Financing Receivable, Average Recorded Investment

8,798

0

9,343

0

'

'

'

'

Impaired Financing Receivable, Interest Income, Accrual Method

0

0

0

0

'

'

'

'

Total loans

517,953

'

517,953

'

'

449,418

'

'

Commercial Loan [Member]

'

'

'

'

'

'

'

'

Financing Receivable, Allowance for Credit Losses [Line Items]

'

'

'

'

'

'

'

'

Impaired Financing Receivable, Average Recorded Investment

329,626

416,656

319,258

386,265

'

'

'

'

Impaired Financing Receivable, Interest Income, Accrual Method

2,009

2,020

5,064

5,404

'

'

'

'

Total loans

21,153,510

'

21,153,510

'

'

20,755,625

'

'

Commercial Real Estate Construction Financing Receivable [Member]

'

'

'

'

'

'

'

'

Financing Receivable, Allowance for Credit Losses [Line Items]

'

'

'

'

'

'

'

'

Impaired Financing Receivable, Average Recorded Investment

57,408

135,013

59,422

139,194

'

'

'

'

Impaired Financing Receivable, Interest Income, Accrual Method

367

623

1,256

2,754

'

'

'

'

Total loans

1,892,723

'

1,892,723

'

'

2,182,821

'

'

Term [Member]

'

'

'

'

'

'

'

'

Financing Receivable, Allowance for Credit Losses [Line Items]

'

'

'

'

'

'

'

'

Impaired Financing Receivable, Average Recorded Investment

142,471

288,980

136,677

285,307

'

'

'

'

Impaired Financing Receivable, Interest Income, Accrual Method

1,001

1,969

3,000

5,571

'

'

'

'

Total loans

8,165,723

'

8,165,723

'

'

8,005,837

'

'

Commercial Real Estate [Member]

'

'

'

'

'

'

'

'

Financing Receivable, Allowance for Credit Losses [Line Items]

'

'

'

'

'

'

'

'

Impaired Financing Receivable, Average Recorded Investment

199,879

423,993

196,099

424,501

'

'

'

'

Impaired Financing Receivable, Interest Income, Accrual Method

1,368

2,592

4,256

8,325

'

'

'

'

Total loans

10,058,446

'

10,058,446

'

'

10,188,658

'

'

Home Equity Line of Credit [Member]

'

'

'

'

'

'

'

'

Financing Receivable, Allowance for Credit Losses [Line Items]

'

'

'

'

'

'

'

'

Impaired Financing Receivable, Average Recorded Investment

17,217

14,606

16,203

12,943

'

'

'

'

Impaired Financing Receivable, Interest Income, Accrual Method

145

120

411

262

'

'

'

'

Total loans

2,255,172

'

2,255,172

'

'

2,133,120

'

'

One Through Four Family Residential [Member]

'

'

'

'

'

'

'

'

Financing Receivable, Allowance for Credit Losses [Line Items]

'

'

'

'

'

'

'

'

Impaired Financing Receivable, Average Recorded Investment

79,523

103,379

78,750

100,012

'

'

'

'

Impaired Financing Receivable, Interest Income, Accrual Method

490

457

1,352

1,171

'

'

'

'

Total loans

5,152,872

'

5,152,872

'

'

4,736,665

'

'

Construction And Other Consumer Real Estate [Member]

'

'

'

'

'

'

'

'

Financing Receivable, Allowance for Credit Losses [Line Items]

'

'

'

'

'

'

'

'

Impaired Financing Receivable, Average Recorded Investment

3,066

5,501

2,953

5,767

'

'

'

'

Impaired Financing Receivable, Interest Income, Accrual Method

40

49

106

141

'

'

'

'

Total loans

350,248

'

350,248

'

'

324,922

'

'

Revolving Credit Facility [Member]

'

'

'

'

'

'

'

'

Financing Receivable, Allowance for Credit Losses [Line Items]

'

'

'

'

'

'

'

'

Total loans

388,588

'

388,588

'

'

356,240

'

'

Consumer Other Financing Receivable [Member]

'

'

'

'

'

'

'

'

Financing Receivable, Allowance for Credit Losses [Line Items]

'

'

'

'

'

'

'

'

Impaired Financing Receivable, Average Recorded Investment

0

1,751

0

1,784

'

'

'

'

Impaired Financing Receivable, Interest Income, Accrual Method

0

0

0

0

'

'

'

'

Total loans

190,518

'

190,518

'

'

197,864

'

'

Consumer Loan [Member]

'

'

'

'

'

'

'

'

Financing Receivable, Allowance for Credit Losses [Line Items]

'

'

'

'

'

'

'

'

Impaired Financing Receivable, Average Recorded Investment

99,806

125,237

97,906

120,506

'

'

'

'

Impaired Financing Receivable, Interest Income, Accrual Method

675

626

1,869

1,574

'

'

'

'

Total loans

8,337,398

'

8,337,398

'

'

7,748,811

'

'

Fdic Supported Loans [Member]

'

'

'

'

'

'

'

'

Financing Receivable, Allowance for Credit Losses [Line Items]

'

'

'

'

'

'

'

'

Impaired Financing Receivable, Average Recorded Investment

200,222

363,293

239,953

404,826

'

'

'

'

Impaired Financing Receivable, Interest Income, Accrual Method

10,335

[2]

20,004

[2]

47,074

[2]

79,153

[2]

'

'

'

'

Total loans

$190,441

'

$190,441

'

'

$350,271

'

'

[1]

The Purchased Loans section following contains further discussion related to FDIC-supported/PCI loans.

[2]

The balance of interest income recognized results primarily from accretion of interest income on impaired FDIC-supported/PCI loans.

Loans_And_Allowance_For_Credit6

Loans And Allowance For Credit Losses (Summary Of Nonaccrual Loans) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Total	$307,230	$406,613
Commercial And Industrial [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Total	87,810	97,960
Leasing [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Total	369	757
Owner Occupied [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Total	97,749	136,281
Municipal [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Total	8,684	9,986
Commercial Loan [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Total	194,612	244,984
Commercial Real Estate Construction Financing Receivable [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Total	22,728	29,205
Term [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Total	29,704	60,380
Commercial Real Estate [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Total	52,432	89,585
Home Equity Line of Credit [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Total	11,756	8,969
One Through Four Family Residential [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Total	43,445	53,002
Construction And Other Consumer Real Estate [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Total	2,037	3,510
Revolving Credit Facility [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Total	254	1,365
Consumer Other Financing Receivable [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Total	140	804
Consumer Loan [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Total	57,632	67,650
Fdic Supported Loans [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Total	$2,554	$4,394

Loans_And_Allowance_For_Credit7

Loans And Allowance For Credit Losses (Summary Of Past Due Loans (Accruing And Nonaccruing)) (Details) (USD $)	Sep. 30, 2014		Dec. 31, 2013
In Thousands, unless otherwise specified
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'
Current	$39,466,284		$38,711,947
30-89 days past due	106,522		145,849
90+ days past due	166,989		185,569
Total past due	273,511		331,418
Total loans	39,739,795		39,043,365
Accruing loans 90+ days past due	30,755		40,348
Financing Receivable Recorded Investment Nonaccrual Status That Are Current	153,555	[1]	232,055	[1]
Financing Receivable, Recorded Investment, Nonaccrual Status	307,230		406,613
Commercial [Member]	'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'
Total loans	21,153,510		20,755,625
Commercial Loan [Member]	'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'
Current	21,012,183		20,573,298
30-89 days past due	62,852		89,009
90+ days past due	78,475		93,318
Total past due	141,327		182,327
Total loans	21,153,510		20,755,625
Accruing loans 90+ days past due	4,126		2,635
Financing Receivable Recorded Investment Nonaccrual Status That Are Current	108,873	[1]	136,223	[1]
Financing Receivable, Recorded Investment, Nonaccrual Status	194,612		244,984
Commercial Real Estate [Member]	'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'
Total loans	10,058,446		10,188,658
Consumer Portfolio Segment [Member]	'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'
Total loans	8,337,398		7,748,811
Consumer Loan [Member]	'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'
Current	8,285,381		7,699,595
30-89 days past due	15,352		20,485
90+ days past due	36,665		28,731
Total past due	52,017		49,216
Total loans	8,337,398		7,748,811
Accruing loans 90+ days past due	2,996		1,719
Financing Receivable Recorded Investment Nonaccrual Status That Are Current	19,640	[1]	33,922	[1]
Financing Receivable, Recorded Investment, Nonaccrual Status	57,632		67,650
Commercial And Industrial [Member]	'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'
Current	12,819,580		12,387,546
30-89 days past due	36,177		48,811
90+ days past due	40,760		44,726
Total past due	76,937		93,537
Total loans	12,896,517		12,481,083
Accruing loans 90+ days past due	2,157		1,855
Financing Receivable Recorded Investment Nonaccrual Status That Are Current	45,530	[1]	52,412	[1]
Financing Receivable, Recorded Investment, Nonaccrual Status	87,810		97,960
Leasing [Member]	'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'
Current	404,501		387,526
30-89 days past due	15		173
90+ days past due	26		230
Total past due	41		403
Total loans	404,542		387,929
Accruing loans 90+ days past due	0		36
Financing Receivable Recorded Investment Nonaccrual Status That Are Current	343	[1]	563	[1]
Financing Receivable, Recorded Investment, Nonaccrual Status	369		757
Owner Occupied [Member]	'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'
Current	7,270,149		7,357,618
30-89 days past due	26,660		36,718
90+ days past due	37,689		42,859
Total past due	64,349		79,577
Total loans	7,334,498		7,437,195
Accruing loans 90+ days past due	1,969		744
Financing Receivable Recorded Investment Nonaccrual Status That Are Current	54,316	[1]	82,072	[1]
Financing Receivable, Recorded Investment, Nonaccrual Status	97,749		136,281
Municipal [Member]	'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'
Current	517,953		440,608
30-89 days past due	0		3,307
90+ days past due	0		5,503
Total past due	0		8,810
Total loans	517,953		449,418
Accruing loans 90+ days past due	0		0
Financing Receivable Recorded Investment Nonaccrual Status That Are Current	8,684	[1]	1,176	[1]
Financing Receivable, Recorded Investment, Nonaccrual Status	8,684		9,986
Commercial Real Estate Construction Financing Receivable [Member]	'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'
Current	1,881,153		2,162,018
30-89 days past due	1,965		8,967
90+ days past due	9,605		11,836
Total past due	11,570		20,803
Total loans	1,892,723		2,182,821
Accruing loans 90+ days past due	0		23
Financing Receivable Recorded Investment Nonaccrual Status That Are Current	13,002	[1]	17,311	[1]
Financing Receivable, Recorded Investment, Nonaccrual Status	22,728		29,205
Term [Member]	'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'
Current	8,126,717		7,971,327
30-89 days past due	22,052		15,362
90+ days past due	16,954		19,148
Total past due	39,006		34,510
Total loans	8,165,723		8,005,837
Accruing loans 90+ days past due	852		5,580
Financing Receivable Recorded Investment Nonaccrual Status That Are Current	12,040	[1]	42,624	[1]
Financing Receivable, Recorded Investment, Nonaccrual Status	29,704		60,380
Commercial Real Estate [Member]	'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'
Current	10,007,870		10,133,345
30-89 days past due	24,017		24,329
90+ days past due	26,559		30,984
Total past due	50,576		55,313
Total loans	10,058,446		10,188,658
Accruing loans 90+ days past due	852		5,603
Financing Receivable Recorded Investment Nonaccrual Status That Are Current	25,042	[1]	59,935	[1]
Financing Receivable, Recorded Investment, Nonaccrual Status	52,432		89,585
Home Equity Line of Credit [Member]	'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'
Current	2,241,766		2,122,549
30-89 days past due	3,625		8,001
90+ days past due	9,781		2,570
Total past due	13,406		10,571
Total loans	2,255,172		2,133,120
Accruing loans 90+ days past due	0		98
Financing Receivable Recorded Investment Nonaccrual Status That Are Current	1,534	[1]	2,868	[1]
Financing Receivable, Recorded Investment, Nonaccrual Status	11,756		8,969
One Through Four Family Residential [Member]	'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'
Current	5,119,368		4,704,852
30-89 days past due	8,818		8,526
90+ days past due	24,686		23,287
Total past due	33,504		31,813
Total loans	5,152,872		4,736,665
Accruing loans 90+ days past due	1,623		667
Financing Receivable Recorded Investment Nonaccrual Status That Are Current	16,619	[1]	27,592	[1]
Financing Receivable, Recorded Investment, Nonaccrual Status	43,445		53,002
Construction And Other Consumer Real Estate [Member]	'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'
Current	348,408		322,807
30-89 days past due	617		1,038
90+ days past due	1,223		1,077
Total past due	1,840		2,115
Total loans	350,248		324,922
Accruing loans 90+ days past due	585		0
Financing Receivable Recorded Investment Nonaccrual Status That Are Current	1,329	[1]	2,232	[1]
Financing Receivable, Recorded Investment, Nonaccrual Status	2,037		3,510
Revolving Credit Facility [Member]	'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'
Current	385,918		353,060
30-89 days past due	1,755		2,093
90+ days past due	915		1,087
Total past due	2,670		3,180
Total loans	388,588		356,240
Accruing loans 90+ days past due	771		900
Financing Receivable Recorded Investment Nonaccrual Status That Are Current	65	[1]	1,105	[1]
Financing Receivable, Recorded Investment, Nonaccrual Status	254		1,365
Consumer Other Financing Receivable [Member]	'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'
Current	189,921		196,327
30-89 days past due	537		827
90+ days past due	60		710
Total past due	597		1,537
Total loans	190,518		197,864
Accruing loans 90+ days past due	17		54
Financing Receivable Recorded Investment Nonaccrual Status That Are Current	93	[1]	125	[1]
Financing Receivable, Recorded Investment, Nonaccrual Status	140		804
Fdic Supported Loans [Member]	'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'
Current	160,850		305,709
30-89 days past due	4,301		12,026
90+ days past due	25,290		32,536
Total past due	29,591		44,562
Total loans	190,441		350,271
Accruing loans 90+ days past due	22,781		30,391
Financing Receivable Recorded Investment Nonaccrual Status That Are Current	0	[1]	1,975	[1]
Financing Receivable, Recorded Investment, Nonaccrual Status	$2,554		$4,394
[1]	Represents nonaccrual loans that are not past due more than 30 days; however, full payment of principal and interest is still not expected.

Loans_And_Allowance_For_Credit8

Loans And Allowance For Credit Losses (Summary Of Outstanding Loan Balances (Accruing And Nonaccruing) Categorized By Credit Quality Indicators) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Loans held for sale	$109,139	$171,328
Commercial and industrial	12,896,517	12,481,083
Leasing	404,542	387,929
Owner occupied	7,334,498	7,437,195
Municipal	517,953	449,418
Total commercial	21,153,510	20,755,625
Construction and land development	1,892,723	2,182,821
Term	8,165,723	8,005,837
Total commercial real estate	10,058,446	10,188,658
Home equity credit line	2,255,172	2,133,120
1-4 family residential	5,152,872	4,736,665
Construction and other consumer real estate	350,248	324,922
Bankcard and other revolving plans	388,588	356,240
Other	190,518	197,864
Total consumer	8,337,398	7,748,811
FDIC-supported loans	190,441	350,271
Total loans	39,739,795	39,043,365
FDIC-Supported Loans [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
FDIC-supported loans	190,441	'
FDIC-supported loans	'	350,271
Consumer Portfolio Segment [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Home equity credit line	2,255,172	2,133,120
1-4 family residential	5,152,872	4,736,665
Construction and other consumer real estate	350,248	324,922
Bankcard and other revolving plans	388,588	356,240
Other	190,518	197,864
Total consumer	8,337,398	7,748,811
Total loans	8,337,398	7,748,811
Commercial Real Estate [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Term	8,165,723	8,005,837
Total commercial real estate	10,058,446	10,188,658
Total loans	10,058,446	10,188,658
Commercial Real Estate Construction Financing Receivable [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Construction and land development	1,892,723	2,182,821
Total loans	1,892,723	2,182,821
Commercial [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Commercial and industrial	12,896,517	12,481,083
Leasing	404,542	387,929
Owner occupied	7,334,498	7,437,195
Municipal	517,953	449,418
Total commercial	21,153,510	20,755,625
Total loans	21,153,510	20,755,625
Pass [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Total loans	37,980,711	37,009,767
Pass [Member] | FDIC-Supported Loans [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
FDIC-supported loans	121,968	'
FDIC-supported loans	'	232,893
Pass [Member] | Consumer Portfolio Segment [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Home equity credit line	2,232,497	2,111,475
1-4 family residential	5,097,336	4,668,841
Construction and other consumer real estate	344,024	313,881
Bankcard and other revolving plans	386,887	353,618
Other	190,085	196,770
Total consumer	8,250,829	7,644,585
Pass [Member] | Commercial Real Estate [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Term	7,845,622	7,569,472
Total commercial real estate	9,679,951	9,677,300
Pass [Member] | Commercial Real Estate Construction Financing Receivable [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Construction and land development	1,834,329	2,107,828
Pass [Member] | Commercial [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Commercial and industrial	12,245,426	11,807,825
Leasing	395,119	380,268
Owner occupied	6,779,463	6,827,464
Municipal	507,955	439,432
Total commercial	19,927,963	19,454,989
Special Mention [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Total loans	571,677	700,374
Special Mention [Member] | FDIC-Supported Loans [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
FDIC-supported loans	13,095	'
FDIC-supported loans	'	22,532
Special Mention [Member] | Consumer Portfolio Segment [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Home equity credit line	0	0
1-4 family residential	0	0
Construction and other consumer real estate	0	0
Bankcard and other revolving plans	0	0
Other	0	0
Total consumer	0	0
Special Mention [Member] | Commercial Real Estate [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Term	109,929	172,856
Total commercial real estate	123,774	187,866
Special Mention [Member] | Commercial Real Estate Construction Financing Receivable [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Construction and land development	13,845	15,010
Special Mention [Member] | Commercial [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Commercial and industrial	234,086	303,598
Leasing	6,950	2,050
Owner occupied	192,458	184,328
Municipal	1,314	0
Total commercial	434,808	489,976
Total Allowance [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Total loans	610,277	746,291
Total Allowance [Member] | FDIC-Supported Loans [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
FDIC-supported loans	2,647	'
FDIC-supported loans	'	6,918
Total Allowance [Member] | Consumer Portfolio Segment [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Total consumer	44,080	60,865
Total Allowance [Member] | Commercial Real Estate [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Total commercial real estate	153,094	213,363
Total Allowance [Member] | Commercial [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Total commercial	410,456	465,145
Doubtful [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Total loans	10,679	9,269
Doubtful [Member] | FDIC-Supported Loans [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
FDIC-supported loans	0	0
Doubtful [Member] | Consumer Portfolio Segment [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Home equity credit line	0	0
1-4 family residential	0	0
Construction and other consumer real estate	0	0
Bankcard and other revolving plans	0	0
Other	0	0
Total consumer	0	0
Doubtful [Member] | Commercial Real Estate [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Term	0	0
Total commercial real estate	0	0
Doubtful [Member] | Commercial Real Estate Construction Financing Receivable [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Construction and land development	0	0
Doubtful [Member] | Commercial [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Commercial and industrial	10,679	9,269
Leasing	0	0
Owner occupied	0	0
Municipal	0	0
Total commercial	10,679	9,269
Substandard [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Total loans	1,176,728	1,323,955
Substandard [Member] | FDIC-Supported Loans [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
FDIC-supported loans	55,378	'
FDIC-supported loans	'	94,846
Substandard [Member] | Consumer Portfolio Segment [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Home equity credit line	22,675	21,645
1-4 family residential	55,536	67,824
Construction and other consumer real estate	6,224	11,041
Bankcard and other revolving plans	1,701	2,622
Other	433	1,094
Total consumer	86,569	104,226
Substandard [Member] | Commercial Real Estate [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Term	210,172	263,509
Total commercial real estate	254,721	323,492
Substandard [Member] | Commercial Real Estate Construction Financing Receivable [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Construction and land development	44,549	59,983
Substandard [Member] | Commercial [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Commercial and industrial	406,326	360,391
Leasing	2,473	5,611
Owner occupied	362,577	425,403
Municipal	8,684	9,986
Total commercial	$780,060	$801,391

Loans_And_Allowance_For_Credit9

Loans And Allowance For Credit Losses (Summary Of Information On Impaired Loans) (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		Dec. 31, 2013
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'		'		'		'
Loans and Leases Receivable, Gross, Consumer, Home Equity	$2,255,172		'		$2,255,172		'		$2,133,120
Unpaid principal balance	906,745		'		906,745		'		1,109,953
Recorded investment	658,271		'		658,271		'		924,553
Impaired Financing Receivable, Related Allowance	45,568		'		45,568		'		66,206
Average recorded investment	829,533		1,329,179		853,216		1,336,098		'
Interest income recognized	14,387		25,242		58,263		94,456		'
Commercial And Industrial [Member]	'		'		'		'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'		'		'		'
Unpaid principal balance	221,275		'		221,275		'		167,816
Recorded investment	130,114		'		130,114		'		146,798
Impaired Financing Receivable, Related Allowance	21,692		'		21,692		'		22,462
Average recorded investment	176,526		199,217		168,181		175,040		'
Interest income recognized	1,232		1,105		2,812		2,594		'
Owner Occupied [Member]	'		'		'		'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'		'		'		'
Unpaid principal balance	130,606		'		130,606		'		151,499
Recorded investment	108,326		'		108,326		'		138,945
Impaired Financing Receivable, Related Allowance	5,479		'		5,479		'		13,900
Average recorded investment	144,302		217,439		141,734		211,225		'
Interest income recognized	777		915		2,252		2,810		'
Municipal [Member]	'		'		'		'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'		'		'		'
Unpaid principal balance	9,164		'		9,164		'		10,465
Recorded investment	8,685		'		8,685		'		9,986
Impaired Financing Receivable, Related Allowance	1,816		'		1,816		'		1,225
Average recorded investment	8,798		0		9,343		0		'
Interest income recognized	0		0		0		0		'
Commercial Loan [Member]	'		'		'		'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'		'		'		'
Unpaid principal balance	361,045		'		361,045		'		329,780
Recorded investment	247,125		'		247,125		'		295,729
Impaired Financing Receivable, Related Allowance	28,987		'		28,987		'		37,587
Average recorded investment	329,626		416,656		319,258		386,265		'
Interest income recognized	2,009		2,020		5,064		5,404		'
Commercial Real Estate Construction Financing Receivable [Member]	'		'		'		'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'		'		'		'
Unpaid principal balance	53,702		'		53,702		'		85,440
Recorded investment	44,674		'		44,674		'		69,950
Impaired Financing Receivable, Related Allowance	2,589		'		2,589		'		3,483
Average recorded investment	57,408		135,013		59,422		139,194		'
Interest income recognized	367		623		1,256		2,754		'
Term [Member]	'		'		'		'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'		'		'		'
Unpaid principal balance	134,557		'		134,557		'		171,826
Recorded investment	90,368		'		90,368		'		146,588
Impaired Financing Receivable, Related Allowance	2,635		'		2,635		'		7,981
Average recorded investment	142,471		288,980		136,677		285,307		'
Interest income recognized	1,001		1,969		3,000		5,571		'
Commercial Real Estate [Member]	'		'		'		'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'		'		'		'
Unpaid principal balance	188,259		'		188,259		'		257,266
Recorded investment	135,042		'		135,042		'		216,538
Impaired Financing Receivable, Related Allowance	5,224		'		5,224		'		11,464
Average recorded investment	199,879		423,993		196,099		424,501		'
Interest income recognized	1,368		2,592		4,256		8,325		'
Home Equity Line of Credit [Member]	'		'		'		'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'		'		'		'
Unpaid principal balance	22,105		'		22,105		'		17,547
Recorded investment	17,045		'		17,045		'		14,768
Impaired Financing Receivable, Related Allowance	128		'		128		'		178
Average recorded investment	17,217		14,606		16,203		12,943		'
Interest income recognized	145		120		411		262		'
Consumer Portfolio Segment [Member]	'		'		'		'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'		'		'		'
Loans and Leases Receivable, Gross, Consumer, Home Equity	2,255,172		'		2,255,172		'		2,133,120
One Through Four Family Residential [Member]	'		'		'		'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'		'		'		'
Unpaid principal balance	85,431		'		85,431		'		95,613
Recorded investment	71,306		'		71,306		'		80,907
Impaired Financing Receivable, Related Allowance	8,426		'		8,426		'		10,276
Average recorded investment	79,523		103,379		78,750		100,012		'
Interest income recognized	490		457		1,352		1,171		'
Construction And Other Consumer Real Estate [Member]	'		'		'		'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'		'		'		'
Unpaid principal balance	4,218		'		4,218		'		4,713
Recorded investment	2,792		'		2,792		'		3,576
Impaired Financing Receivable, Related Allowance	197		'		197		'		175
Average recorded investment	3,066		5,501		2,953		5,767		'
Interest income recognized	40		49		106		141		'
Revolving Credit Facility [Member]	'		'		'		'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'		'		'		'
Unpaid principal balance	0		'		0		'		726
Recorded investment	0		'		0		'		726
Impaired Financing Receivable, Related Allowance	0		'		0		'		0
Consumer Other Financing Receivable [Member]	'		'		'		'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'		'		'		'
Average recorded investment	0		1,751		0		1,784		'
Interest income recognized	0		0		0		0		'
Consumer Loan [Member]	'		'		'		'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'		'		'		'
Unpaid principal balance	111,754		'		111,754		'		118,599
Recorded investment	91,143		'		91,143		'		99,977
Impaired Financing Receivable, Related Allowance	8,751		'		8,751		'		10,629
Average recorded investment	99,806		125,237		97,906		120,506		'
Interest income recognized	675		626		1,869		1,574		'
Fdic Supported Loans [Member]	'		'		'		'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'		'		'		'
Unpaid principal balance	245,687		'		245,687		'		404,308
Recorded investment	184,961		'		184,961		'		312,309
Impaired Financing Receivable, Related Allowance	2,606		'		2,606		'		6,526
Average recorded investment	200,222		363,293		239,953		404,826		'
Interest income recognized	10,335	[1]	20,004	[1]	47,074	[1]	79,153	[1]	'
Impaired Financing Receivable Related Allowance [Member]	'		'		'		'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'		'		'		'
Recorded investment	381,126		'		381,126		'		652,007
Impaired Financing Receivable Related Allowance [Member] | Commercial And Industrial [Member]	'		'		'		'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'		'		'		'
Recorded investment	103,919		'		103,919		'		117,881
Impaired Financing Receivable Related Allowance [Member] | Owner Occupied [Member]	'		'		'		'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'		'		'		'
Recorded investment	55,433		'		55,433		'		88,584
Impaired Financing Receivable Related Allowance [Member] | Municipal [Member]	'		'		'		'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'		'		'		'
Recorded investment	7,609		'		7,609		'		8,811
Impaired Financing Receivable Related Allowance [Member] | Commercial Loan [Member]	'		'		'		'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'		'		'		'
Recorded investment	166,961		'		166,961		'		215,276
Impaired Financing Receivable Related Allowance [Member] | Commercial Real Estate Construction Financing Receivable [Member]	'		'		'		'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'		'		'		'
Recorded investment	29,869		'		29,869		'		50,744
Impaired Financing Receivable Related Allowance [Member] | Term [Member]	'		'		'		'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'		'		'		'
Recorded investment	33,878		'		33,878		'		112,330
Impaired Financing Receivable Related Allowance [Member] | Commercial Real Estate [Member]	'		'		'		'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'		'		'		'
Recorded investment	63,747		'		63,747		'		163,074
Impaired Financing Receivable Related Allowance [Member] | Home Equity Line of Credit [Member]	'		'		'		'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'		'		'		'
Recorded investment	2,997		'		2,997		'		2,200
Impaired Financing Receivable Related Allowance [Member] | One Through Four Family Residential [Member]	'		'		'		'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'		'		'		'
Recorded investment	33,998		'		33,998		'		42,132
Impaired Financing Receivable Related Allowance [Member] | Construction And Other Consumer Real Estate [Member]	'		'		'		'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'		'		'		'
Recorded investment	1,190		'		1,190		'		933
Impaired Financing Receivable Related Allowance [Member] | Revolving Credit Facility [Member]	'		'		'		'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'		'		'		'
Recorded investment	0		'		0		'		0
Impaired Financing Receivable Related Allowance [Member] | Consumer Loan [Member]	'		'		'		'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'		'		'		'
Recorded investment	38,185		'		38,185		'		45,265
Impaired Financing Receivable Related Allowance [Member] | Fdic Supported Loans [Member]	'		'		'		'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'		'		'		'
Recorded investment	112,233		'		112,233		'		228,392
Impaired Financing Receivable Recorded Investment With No Allowance [Member]	'		'		'		'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'		'		'		'
Recorded investment	277,145		'		277,145		'		272,546
Impaired Financing Receivable Recorded Investment With No Allowance [Member] | Commercial And Industrial [Member]	'		'		'		'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'		'		'		'
Recorded investment	26,195		'		26,195		'		28,917
Impaired Financing Receivable Recorded Investment With No Allowance [Member] | Owner Occupied [Member]	'		'		'		'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'		'		'		'
Recorded investment	52,893		'		52,893		'		50,361
Impaired Financing Receivable Recorded Investment With No Allowance [Member] | Municipal [Member]	'		'		'		'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'		'		'		'
Recorded investment	1,076		'		1,076		'		1,175
Impaired Financing Receivable Recorded Investment With No Allowance [Member] | Commercial Loan [Member]	'		'		'		'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'		'		'		'
Recorded investment	80,164		'		80,164		'		80,453
Impaired Financing Receivable Recorded Investment With No Allowance [Member] | Commercial Real Estate Construction Financing Receivable [Member]	'		'		'		'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'		'		'		'
Recorded investment	14,805		'		14,805		'		19,206
Impaired Financing Receivable Recorded Investment With No Allowance [Member] | Term [Member]	'		'		'		'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'		'		'		'
Recorded investment	56,490		'		56,490		'		34,258
Impaired Financing Receivable Recorded Investment With No Allowance [Member] | Commercial Real Estate [Member]	'		'		'		'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'		'		'		'
Recorded investment	71,295		'		71,295		'		53,464
Impaired Financing Receivable Recorded Investment With No Allowance [Member] | Home Equity Line of Credit [Member]	'		'		'		'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'		'		'		'
Recorded investment	14,048		'		14,048		'		12,568
Impaired Financing Receivable Recorded Investment With No Allowance [Member] | One Through Four Family Residential [Member]	'		'		'		'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'		'		'		'
Recorded investment	37,308		'		37,308		'		38,775
Impaired Financing Receivable Recorded Investment With No Allowance [Member] | Construction And Other Consumer Real Estate [Member]	'		'		'		'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'		'		'		'
Recorded investment	1,602		'		1,602		'		2,643
Impaired Financing Receivable Recorded Investment With No Allowance [Member] | Revolving Credit Facility [Member]	'		'		'		'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'		'		'		'
Recorded investment	0		'		0		'		726
Impaired Financing Receivable Recorded Investment With No Allowance [Member] | Consumer Loan [Member]	'		'		'		'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'		'		'		'
Recorded investment	52,958		'		52,958		'		54,712
Impaired Financing Receivable Recorded Investment With No Allowance [Member] | Fdic Supported Loans [Member]	'		'		'		'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'		'		'		'
Recorded investment	72,728		'		72,728		'		83,917
Nonaccruing [Member] | Home Equity Credit Line [Member]	'		'		'		'		'
Financing Receivable, Allowance for Credit Losses [Line Items]	'		'		'		'		'
Loans and Leases Receivable, Gross, Consumer, Home Equity	'		'		'		'		$1,257
[1]	The balance of interest income recognized results primarily from accretion of interest income on impaired FDIC-supported/PCI loans.

Recovered_Sheet1

Loans And Allowance For Credit Losses (Summary Of Selected Information On TDRs That Includes Recorded Investment On An Accruing And Nonaccruing Basis By Loan Class And Modification Type) (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	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2013
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$2,265		$882	$2,466		$2,850	$97,300	$178,800	'
Recorded investment resulting from the following modification types	374,667		'	374,667		'	'	'	481,434
1-4 family residential	5,152,872		'	5,152,872		'	'	'	4,736,665
Construction and other consumer real estate	350,248		'	350,248		'	'	'	324,922
Commercial and industrial	12,896,517		'	12,896,517		'	'	'	12,481,083
Home equity credit line	2,255,172		'	2,255,172		'	'	'	2,133,120
Bankcard and other revolving plans	388,588		'	388,588		'	'	'	356,240
Commercial [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Commercial and industrial	12,896,517		'	12,896,517		'	'	'	12,481,083
Consumer Portfolio Segment [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
1-4 family residential	5,152,872		'	5,152,872		'	'	'	4,736,665
Construction and other consumer real estate	350,248		'	350,248		'	'	'	324,922
Home equity credit line	2,255,172		'	2,255,172		'	'	'	2,133,120
Bankcard and other revolving plans	388,588		'	388,588		'	'	'	356,240
Commercial And Industrial [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	729		660	848		660	'	'	'
Owner Occupied [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	1,025		0	1,025		511	'	'	'
Commercial Loan [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	1,754		660	1,873		1,171	'	'	'
Home Equity Line of Credit [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	158		222	201		307	'	'	'
One Through Four Family Residential [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	353		0	353		1,372	'	'	'
Construction And Other Consumer Real Estate [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0		0	39		0	'	'	'
Consumer Loan [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	511		222	593		1,679	'	'	'
Accruing [Member] | Commercial And Industrial [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Commercial and industrial	60,209		'	60,209		'	'	'	'
Accruing [Member] | Owner Occupied [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	52,696		'	52,696		'	'	'	'
Accruing [Member] | Commercial Real Estate Construction Financing Receivable [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	23,406		'	23,406		'	'	'	'
Accruing [Member] | Term [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	67,240		'	67,240		'	'	'	'
Accruing [Member] | Home Equity Credit Line [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	12,214		'	12,214		'	'	'	'
Accruing [Member] | One Through Four Family Residential [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
1-4 family residential	46,997		'	46,997		'	'	'	'
Accruing [Member] | Construction And Other Consumer Real Estate [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Construction and other consumer real estate	2,232		'	2,232		'	'	'	'
Nonaccruing [Member] | Commercial And Industrial [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Commercial and industrial	34,196		'	34,196		'	'	'	'
Nonaccruing [Member] | Owner Occupied [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	22,892		'	22,892		'	'	'	'
Nonaccruing [Member] | Municipal [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	1,076		'	1,076		'	'	'	1,175
Nonaccruing [Member] | Commercial Real Estate Construction Financing Receivable [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	21,426		'	21,426		'	'	'	'
Nonaccruing [Member] | Term [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	9,580		'	9,580		'	'	'	'
Nonaccruing [Member] | Home Equity Line of Credit [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Home equity credit line	1,216		'	1,216		'	'	'	'
Nonaccruing [Member] | One Through Four Family Residential [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
1-4 family residential	18,434		'	18,434		'	'	'	'
Nonaccruing [Member] | Construction And Other Consumer Real Estate [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Construction and other consumer real estate	853		'	853		'	'	'	'
Nonaccruing [Member] | ERROR in label resolution.	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Bankcard and other revolving plans	0		'	0		'	'	'	252
Interest Rate Below Market [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	55,022		'	55,022		'	'	'	59,284
Interest Rate Below Market [Member] | Accruing [Member] | Commercial And Industrial [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Commercial and industrial	2,627		'	2,627		'	'	'	'
Interest Rate Below Market [Member] | Accruing [Member] | Owner Occupied [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	20,615		'	20,615		'	'	'	'
Interest Rate Below Market [Member] | Accruing [Member] | Commercial Real Estate Construction Financing Receivable [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	0		'	0		'	'	'	'
Interest Rate Below Market [Member] | Accruing [Member] | Term [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	7,414		'	7,414		'	'	'	'
Interest Rate Below Market [Member] | Accruing [Member] | Home Equity Credit Line [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	742		'	742		'	'	'	'
Interest Rate Below Market [Member] | Accruing [Member] | One Through Four Family Residential [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
1-4 family residential	2,411		'	2,411		'	'	'	'
Interest Rate Below Market [Member] | Accruing [Member] | Construction And Other Consumer Real Estate [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Construction and other consumer real estate	290		'	290		'	'	'	'
Interest Rate Below Market [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	0		'	0		'	'	'	'
Interest Rate Below Market [Member] | Nonaccruing [Member] | Commercial And Industrial [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Commercial and industrial	564		'	564		'	'	'	'
Interest Rate Below Market [Member] | Nonaccruing [Member] | Owner Occupied [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	2,786		'	2,786		'	'	'	'
Interest Rate Below Market [Member] | Nonaccruing [Member] | Municipal [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	'		'	'		'	'	'	0
Interest Rate Below Market [Member] | Nonaccruing [Member] | Commercial Real Estate Construction Financing Receivable [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	11,237		'	11,237		'	'	'	'
Interest Rate Below Market [Member] | Nonaccruing [Member] | Term [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	2,953		'	2,953		'	'	'	'
Interest Rate Below Market [Member] | Nonaccruing [Member] | Home Equity Line of Credit [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Home equity credit line	0		'	0		'	'	'	'
Interest Rate Below Market [Member] | Nonaccruing [Member] | One Through Four Family Residential [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
1-4 family residential	3,380		'	3,380		'	'	'	'
Interest Rate Below Market [Member] | Nonaccruing [Member] | Construction And Other Consumer Real Estate [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Construction and other consumer real estate	3		'	3		'	'	'	'
Interest Rate Below Market [Member] | Nonaccruing [Member] | ERROR in label resolution.	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Bankcard and other revolving plans	0		'	0		'	'	'	0
Maturity Or Term Extension [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	29,444		'	29,444		'	'	'	43,069
Maturity Or Term Extension [Member] | Accruing [Member] | Commercial And Industrial [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Commercial and industrial	8,346		'	8,346		'	'	'	'
Maturity Or Term Extension [Member] | Accruing [Member] | Owner Occupied [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	1,314		'	1,314		'	'	'	'
Maturity Or Term Extension [Member] | Accruing [Member] | Commercial Real Estate Construction Financing Receivable [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	6,322		'	6,322		'	'	'	'
Maturity Or Term Extension [Member] | Accruing [Member] | Term [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	9,098		'	9,098		'	'	'	'
Maturity Or Term Extension [Member] | Accruing [Member] | Home Equity Credit Line [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	71		'	71		'	'	'	'
Maturity Or Term Extension [Member] | Accruing [Member] | One Through Four Family Residential [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
1-4 family residential	384		'	384		'	'	'	'
Maturity Or Term Extension [Member] | Accruing [Member] | Construction And Other Consumer Real Estate [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Construction and other consumer real estate	652		'	652		'	'	'	'
Maturity Or Term Extension [Member] | Nonaccruing [Member] | Commercial And Industrial [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Commercial and industrial	593		'	593		'	'	'	'
Maturity Or Term Extension [Member] | Nonaccruing [Member] | Owner Occupied [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	857		'	857		'	'	'	'
Maturity Or Term Extension [Member] | Nonaccruing [Member] | Municipal [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	1,076		'	1,076		'	'	'	1,175
Maturity Or Term Extension [Member] | Nonaccruing [Member] | Commercial Real Estate Construction Financing Receivable [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	71		'	71		'	'	'	'
Maturity Or Term Extension [Member] | Nonaccruing [Member] | Term [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	0		'	0		'	'	'	'
Maturity Or Term Extension [Member] | Nonaccruing [Member] | Home Equity Line of Credit [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Home equity credit line	0		'	0		'	'	'	'
Maturity Or Term Extension [Member] | Nonaccruing [Member] | One Through Four Family Residential [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
1-4 family residential	47		'	47		'	'	'	'
Maturity Or Term Extension [Member] | Nonaccruing [Member] | Construction And Other Consumer Real Estate [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Construction and other consumer real estate	613		'	613		'	'	'	'
Maturity Or Term Extension [Member] | Nonaccruing [Member] | ERROR in label resolution.	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Bankcard and other revolving plans	0		'	0		'	'	'	252
Principal Forgiveness [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	20,999		'	20,999		'	'	'	32,616
Principal Forgiveness [Member] | Accruing [Member] | Commercial And Industrial [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Commercial and industrial	19		'	19		'	'	'	'
Principal Forgiveness [Member] | Accruing [Member] | Owner Occupied [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	967		'	967		'	'	'	'
Principal Forgiveness [Member] | Accruing [Member] | Commercial Real Estate Construction Financing Receivable [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	0		'	0		'	'	'	'
Principal Forgiveness [Member] | Accruing [Member] | Term [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	184		'	184		'	'	'	'
Principal Forgiveness [Member] | Accruing [Member] | Home Equity Credit Line [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	10,706		'	10,706		'	'	'	'
Principal Forgiveness [Member] | Accruing [Member] | One Through Four Family Residential [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
1-4 family residential	7,286		'	7,286		'	'	'	'
Principal Forgiveness [Member] | Accruing [Member] | Construction And Other Consumer Real Estate [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Construction and other consumer real estate	44		'	44		'	'	'	'
Principal Forgiveness [Member] | Nonaccruing [Member] | Commercial And Industrial [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Commercial and industrial	0		'	0		'	'	'	'
Principal Forgiveness [Member] | Nonaccruing [Member] | Owner Occupied [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	0		'	0		'	'	'	'
Principal Forgiveness [Member] | Nonaccruing [Member] | Municipal [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	0		'	0		'	'	'	0
Principal Forgiveness [Member] | Nonaccruing [Member] | Commercial Real Estate Construction Financing Receivable [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	0		'	0		'	'	'	'
Principal Forgiveness [Member] | Nonaccruing [Member] | Term [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	0		'	0		'	'	'	'
Principal Forgiveness [Member] | Nonaccruing [Member] | Home Equity Line of Credit [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Home equity credit line	648		'	648		'	'	'	'
Principal Forgiveness [Member] | Nonaccruing [Member] | One Through Four Family Residential [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
1-4 family residential	1,106		'	1,106		'	'	'	'
Principal Forgiveness [Member] | Nonaccruing [Member] | Construction And Other Consumer Real Estate [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Construction and other consumer real estate	39		'	39		'	'	'	'
Principal Forgiveness [Member] | Nonaccruing [Member] | ERROR in label resolution.	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Bankcard and other revolving plans	0		'	0		'	'	'	0
Payment Deferral [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	10,652		'	10,652		'	'	'	14,006
Payment Deferral [Member] | Accruing [Member] | Commercial And Industrial [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Commercial and industrial	3,076		'	3,076		'	'	'	'
Payment Deferral [Member] | Accruing [Member] | Owner Occupied [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	1,262		'	1,262		'	'	'	'
Payment Deferral [Member] | Accruing [Member] | Commercial Real Estate Construction Financing Receivable [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	0		'	0		'	'	'	'
Payment Deferral [Member] | Accruing [Member] | Term [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	3,612		'	3,612		'	'	'	'
Payment Deferral [Member] | Accruing [Member] | Home Equity Credit Line [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	0		'	0		'	'	'	'
Payment Deferral [Member] | Accruing [Member] | One Through Four Family Residential [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
1-4 family residential	449		'	449		'	'	'	'
Payment Deferral [Member] | Accruing [Member] | Construction And Other Consumer Real Estate [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Construction and other consumer real estate	0		'	0		'	'	'	'
Payment Deferral [Member] | Nonaccruing [Member] | Commercial And Industrial [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Commercial and industrial	990		'	990		'	'	'	'
Payment Deferral [Member] | Nonaccruing [Member] | Owner Occupied [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	913		'	913		'	'	'	'
Payment Deferral [Member] | Nonaccruing [Member] | Municipal [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	0		'	0		'	'	'	0
Payment Deferral [Member] | Nonaccruing [Member] | Commercial Real Estate Construction Financing Receivable [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	0		'	0		'	'	'	'
Payment Deferral [Member] | Nonaccruing [Member] | Term [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	15		'	15		'	'	'	'
Payment Deferral [Member] | Nonaccruing [Member] | Home Equity Line of Credit [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Home equity credit line	45		'	45		'	'	'	'
Payment Deferral [Member] | Nonaccruing [Member] | One Through Four Family Residential [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
1-4 family residential	200		'	200		'	'	'	'
Payment Deferral [Member] | Nonaccruing [Member] | Construction And Other Consumer Real Estate [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Construction and other consumer real estate	90		'	90		'	'	'	'
Payment Deferral [Member] | Nonaccruing [Member] | ERROR in label resolution.	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Bankcard and other revolving plans	0		'	0		'	'	'	0
Other Recorded Investment Resulting From Following Modification [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	41,724	[1]	'	41,724	[1]	'	'	'	65,594	[1]
Other Recorded Investment Resulting From Following Modification [Member] | Accruing [Member] | Commercial And Industrial [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Commercial and industrial	3,829	[1]	'	3,829	[1]	'	'	'	'
Other Recorded Investment Resulting From Following Modification [Member] | Accruing [Member] | Owner Occupied [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	11,530	[1]	'	11,530	[1]	'	'	'	'
Other Recorded Investment Resulting From Following Modification [Member] | Accruing [Member] | Commercial Real Estate Construction Financing Receivable [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	535	[1]	'	535	[1]	'	'	'	'
Other Recorded Investment Resulting From Following Modification [Member] | Accruing [Member] | Term [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	5,304	[1]	'	5,304	[1]	'	'	'	'
Other Recorded Investment Resulting From Following Modification [Member] | Accruing [Member] | Home Equity Credit Line [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	274	[1]	'	274	[1]	'	'	'	'
Other Recorded Investment Resulting From Following Modification [Member] | Accruing [Member] | One Through Four Family Residential [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
1-4 family residential	1,119	[1]	'	1,119	[1]	'	'	'	'
Other Recorded Investment Resulting From Following Modification [Member] | Accruing [Member] | Construction And Other Consumer Real Estate [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Construction and other consumer real estate	0	[1]	'	0	[1]	'	'	'	'
Other Recorded Investment Resulting From Following Modification [Member] | Nonaccruing [Member] | Commercial And Industrial [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Commercial and industrial	5,264	[1]	'	5,264	[1]	'	'	'	'
Other Recorded Investment Resulting From Following Modification [Member] | Nonaccruing [Member] | Owner Occupied [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	6,165	[1]	'	6,165	[1]	'	'	'	'
Other Recorded Investment Resulting From Following Modification [Member] | Nonaccruing [Member] | Municipal [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	0		'	0		'	'	'	0
Other Recorded Investment Resulting From Following Modification [Member] | Nonaccruing [Member] | Commercial Real Estate Construction Financing Receivable [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	3,342	[1]	'	3,342	[1]	'	'	'	'
Other Recorded Investment Resulting From Following Modification [Member] | Nonaccruing [Member] | Term [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	291	[1]	'	291	[1]	'	'	'	'
Other Recorded Investment Resulting From Following Modification [Member] | Nonaccruing [Member] | Home Equity Line of Credit [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Home equity credit line	218	[1]	'	218	[1]	'	'	'	'
Other Recorded Investment Resulting From Following Modification [Member] | Nonaccruing [Member] | One Through Four Family Residential [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
1-4 family residential	3,853	[1]	'	3,853	[1]	'	'	'	'
Other Recorded Investment Resulting From Following Modification [Member] | Nonaccruing [Member] | Construction And Other Consumer Real Estate [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Construction and other consumer real estate	0	[1]	'	0	[1]	'	'	'	'
Other Recorded Investment Resulting From Following Modification [Member] | Nonaccruing [Member] | ERROR in label resolution.	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Bankcard and other revolving plans	0	[1]	'	0	[1]	'	'	'	0	[1]
Multiple Modification Types [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	216,826	[2]	'	216,826	[2]	'	'	'	266,865	[2]
Multiple Modification Types [Member] | Accruing [Member] | Commercial And Industrial [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Commercial and industrial	42,312	[2]	'	42,312	[2]	'	'	'	'
Multiple Modification Types [Member] | Accruing [Member] | Owner Occupied [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	17,008	[2]	'	17,008	[2]	'	'	'	'
Multiple Modification Types [Member] | Accruing [Member] | Commercial Real Estate Construction Financing Receivable [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	16,549	[2]	'	16,549	[2]	'	'	'	'
Multiple Modification Types [Member] | Accruing [Member] | Term [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	41,628	[2]	'	41,628	[2]	'	'	'	'
Multiple Modification Types [Member] | Accruing [Member] | Home Equity Credit Line [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	421	[2]	'	421	[2]	'	'	'	'
Multiple Modification Types [Member] | Accruing [Member] | One Through Four Family Residential [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
1-4 family residential	35,348	[2]	'	35,348	[2]	'	'	'	'
Multiple Modification Types [Member] | Accruing [Member] | Construction And Other Consumer Real Estate [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Construction and other consumer real estate	1,246	[2]	'	1,246	[2]	'	'	'	'
Multiple Modification Types [Member] | Nonaccruing [Member] | Commercial And Industrial [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Commercial and industrial	26,785	[2]	'	26,785	[2]	'	'	'	'
Multiple Modification Types [Member] | Nonaccruing [Member] | Owner Occupied [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	12,171	[2]	'	12,171	[2]	'	'	'	'
Multiple Modification Types [Member] | Nonaccruing [Member] | Municipal [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	0		'	0		'	'	'	0
Multiple Modification Types [Member] | Nonaccruing [Member] | Commercial Real Estate Construction Financing Receivable [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	6,776	[2]	'	6,776	[2]	'	'	'	'
Multiple Modification Types [Member] | Nonaccruing [Member] | Term [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Recorded investment resulting from the following modification types	6,321	[2]	'	6,321	[2]	'	'	'	'
Multiple Modification Types [Member] | Nonaccruing [Member] | Home Equity Line of Credit [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Home equity credit line	305	[2]	'	305	[2]	'	'	'	'
Multiple Modification Types [Member] | Nonaccruing [Member] | One Through Four Family Residential [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
1-4 family residential	9,848	[2]	'	9,848	[2]	'	'	'	'
Multiple Modification Types [Member] | Nonaccruing [Member] | Construction And Other Consumer Real Estate [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Construction and other consumer real estate	108	[2]	'	108	[2]	'	'	'	'
Multiple Modification Types [Member] | Nonaccruing [Member] | ERROR in label resolution.	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Bankcard and other revolving plans	$0	[2]	'	$0	[2]	'	'	'	$0	[2]
[1]	Includes TDRs that resulted from other modification types including, but not limited to, a legal judgment awarded on different terms, a bankruptcy plan confirmed on different terms, a settlement that includes the delivery of collateral in exchange for debt reduction, etc.
[2]	Includes TDRs that resulted from a combination of any of the previous modification types.

Recovered_Sheet2

Loans And Allowance For Credit Losses (Summary Of Net Financial Impact On Interest Income Due To Interest Rate Modifications Below Market For Accruing TDR Loans) (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	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2013
Financing Receivable, Modifications [Line Items]	'	'	'	'	'	'	'
Document Fiscal Year Focus	'	'	'2014	'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$2,265	$882	$2,466	$2,850	$97,300	$178,800	'
Loans and Leases Receivable, Gross, Consumer, Home Equity	2,255,172	'	2,255,172	'	'	'	2,133,120
Net financial impact on interest income	7,721	7,369	22,976	23,240	'	'	'
Commercial [Member]	'	'	'	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'	'	'	'
Net financial impact on interest income	1,927	1,168	5,193	3,466	'	'	'
Commercial Real Estate [Member]	'	'	'	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'	'	'	'
Net financial impact on interest income	2,376	2,371	7,074	8,040	'	'	'
Consumer Portfolio Segment [Member]	'	'	'	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Home Equity	2,255,172	'	2,255,172	'	'	'	2,133,120
Net financial impact on interest income	3,418	3,830	10,709	11,734	'	'	'
Commercial And Industrial [Member]	'	'	'	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	729	660	848	660	'	'	'
Net financial impact on interest income	-440	-107	-396	-308	'	'	'
Owner Occupied [Member]	'	'	'	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	1,025	0	1,025	511	'	'	'
Net financial impact on interest income	-1,487	-1,061	-4,797	-3,158	'	'	'
Commercial Loan [Member]	'	'	'	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	1,754	660	1,873	1,171	'	'	'
Commercial Real Estate Construction Financing Receivable [Member]	'	'	'	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'	'	'	'
Net financial impact on interest income	-578	-237	-1,850	-755	'	'	'
Term [Member]	'	'	'	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'	'	'	'
Net financial impact on interest income	-1,798	-2,134	-5,224	-7,285	'	'	'
Home Equity Credit Line [Member]	'	'	'	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'	'	'	'
Net financial impact on interest income	-7	-24	-50	-97	'	'	'
One Through Four Family Residential [Member]	'	'	'	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	353	0	353	1,372	'	'	'
Net financial impact on interest income	-3,318	-3,700	-10,359	-11,313	'	'	'
Construction And Other Consumer Real Estate [Member]	'	'	'	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	0	39	0	'	'	'
Net financial impact on interest income	-93	-106	-300	-324	'	'	'
Home Equity Line of Credit [Member]	'	'	'	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	158	222	201	307	'	'	'
Consumer Loan [Member]	'	'	'	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	511	222	593	1,679	'	'	'
Nonaccruing [Member]	'	'	'	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	2,169	882	2,370	2,850	'	'	'
Nonaccruing [Member] | Commercial And Industrial [Member]	'	'	'	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	633	660	752	660	'	'	'
Nonaccruing [Member] | Owner Occupied [Member]	'	'	'	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	1,025	0	1,025	511	'	'	'
Nonaccruing [Member] | Commercial Loan [Member]	'	'	'	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	1,658	660	1,777	1,171	'	'	'
Nonaccruing [Member] | Home Equity Credit Line [Member]	'	'	'	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Home Equity	'	'	'	'	'	'	1,257
Nonaccruing [Member] | One Through Four Family Residential [Member]	'	'	'	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	353	0	353	1,372	'	'	'
Nonaccruing [Member] | Construction And Other Consumer Real Estate [Member]	'	'	'	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	'	39	'	'	'	'
Nonaccruing [Member] | Home Equity Line of Credit [Member]	'	'	'	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	158	222	201	307	'	'	'
Nonaccruing [Member] | Consumer Loan [Member]	'	'	'	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	511	222	593	1,679	'	'	'
Nonaccruing [Member] | Principal Forgiveness [Member] | Home Equity Credit Line [Member]	'	'	'	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Home Equity	'	'	'	'	'	'	1,036
Nonaccruing [Member] | Interest Rate Below Market [Member] | Home Equity Credit Line [Member]	'	'	'	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Home Equity	'	'	'	'	'	'	0
Nonaccruing [Member] | Maturity Or Term Extension [Member] | Home Equity Credit Line [Member]	'	'	'	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Home Equity	'	'	'	'	'	'	0
Nonaccruing [Member] | Payment Deferral [Member] | Home Equity Credit Line [Member]	'	'	'	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Home Equity	'	'	'	'	'	'	0
Nonaccruing [Member] | Other Recorded Investment Resulting From Following Modification [Member] | Home Equity Credit Line [Member]	'	'	'	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Home Equity	'	'	'	'	'	'	221	[1]
Nonaccruing [Member] | Multiple Modification Types [Member] | Home Equity Credit Line [Member]	'	'	'	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Home Equity	'	'	'	'	'	'	0	[2]
Accruing [Member]	'	'	'	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	96	0	96	0	'	'	'
Accruing [Member] | Commercial And Industrial [Member]	'	'	'	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	96	0	96	0	'	'	'
Accruing [Member] | Owner Occupied [Member]	'	'	'	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	0	0	0	'	'	'
Accruing [Member] | Commercial Loan [Member]	'	'	'	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	96	0	96	0	'	'	'
Accruing [Member] | One Through Four Family Residential [Member]	'	'	'	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	0	0	0	'	'	'
Accruing [Member] | Construction And Other Consumer Real Estate [Member]	'	'	'	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	'	0	'	'	'	'
Accruing [Member] | Home Equity Line of Credit [Member]	'	'	'	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	0	0	0	'	'	'
Accruing [Member] | Consumer Loan [Member]	'	'	'	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$0	$0	$0	$0	'	'	'
[1]	Includes TDRs that resulted from other modification types including, but not limited to, a legal judgment awarded on different terms, a bankruptcy plan confirmed on different terms, a settlement that includes the delivery of collateral in exchange for debt reduction, etc.
[2]	Includes TDRs that resulted from a combination of any of the previous modification types.

Recovered_Sheet3

Loans And Allowance For Credit Losses (Schedule Of Investment Of Accruing And Nonaccruing Loans Modified As Troubled Debt Restructurings) (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	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2013
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$2,265		$882	$2,466		$2,850	$97,300	$178,800	'
Loans Receivable, Gross, Commercial and Industrial	12,896,517		'	12,896,517		'	'	'	12,481,083
Financing Receivable, Modifications, Recorded Investment	374,667		'	374,667		'	'	'	481,434
Loans and Leases Receivable, Gross, Consumer, Home Equity	2,255,172		'	2,255,172		'	'	'	2,133,120
Loans and Leases Receivable, Gross, Consumer, Mortgage	5,152,872		'	5,152,872		'	'	'	4,736,665
Loans and Leases Receivable, Gross, Consumer, Construction	350,248		'	350,248		'	'	'	324,922
Loans and Leases Receivable, Gross, Consumer, Revolving, Credit Card	388,588		'	388,588		'	'	'	356,240
Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	96		0	96		0	'	'	'
Financing Receivable, Modifications, Recorded Investment	264,994		'	264,994		'	'	'	345,299
Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	2,169		882	2,370		2,850	'	'	'
Financing Receivable, Modifications, Recorded Investment	109,673		'	109,673		'	'	'	136,135
Commercial [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans Receivable, Gross, Commercial and Industrial	12,896,517		'	12,896,517		'	'	'	12,481,083
Consumer Portfolio Segment [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Home Equity	2,255,172		'	2,255,172		'	'	'	2,133,120
Loans and Leases Receivable, Gross, Consumer, Mortgage	5,152,872		'	5,152,872		'	'	'	4,736,665
Loans and Leases Receivable, Gross, Consumer, Construction	350,248		'	350,248		'	'	'	324,922
Loans and Leases Receivable, Gross, Consumer, Revolving, Credit Card	388,588		'	388,588		'	'	'	356,240
Commercial And Industrial [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	729		660	848		660	'	'	'
Commercial And Industrial [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	96		0	96		0	'	'	'
Loans Receivable, Gross, Commercial and Industrial	'		'	'		'	'	'	83,124
Commercial And Industrial [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	633		660	752		660	'	'	'
Loans Receivable, Gross, Commercial and Industrial	'		'	'		'	'	'	27,658
Owner Occupied [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	1,025		0	1,025		511	'	'	'
Owner Occupied [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0		0	0		0	'	'	'
Financing Receivable, Modifications, Recorded Investment	'		'	'		'	'	'	59,836
Owner Occupied [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	1,025		0	1,025		511	'	'	'
Financing Receivable, Modifications, Recorded Investment	'		'	'		'	'	'	32,554
Commercial Loan [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	1,754		660	1,873		1,171	'	'	'
Commercial Loan [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	96		0	96		0	'	'	'
Financing Receivable, Modifications, Recorded Investment	112,905		'	112,905		'	'	'	142,960
Commercial Loan [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	1,658		660	1,777		1,171	'	'	'
Financing Receivable, Modifications, Recorded Investment	58,164		'	58,164		'	'	'	61,387
Commercial Real Estate Construction Financing Receivable [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	'		'	'		'	'	'	42,775
Commercial Real Estate Construction Financing Receivable [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	'		'	'		'	'	'	27,174
Term [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	'		'	'		'	'	'	96,712
Term [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	'		'	'		'	'	'	19,245
Commercial Real Estate [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	90,646		'	90,646		'	'	'	139,487
Commercial Real Estate [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	31,006		'	31,006		'	'	'	46,419
Home Equity Line of Credit [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	158		222	201		307	'	'	'
Home Equity Line of Credit [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0		0	0		0	'	'	'
Financing Receivable, Modifications, Recorded Investment	'		'	'		'	'	'	10,836
Home Equity Line of Credit [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	158		222	201		307	'	'	'
One Through Four Family Residential [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	353		0	353		1,372	'	'	'
One Through Four Family Residential [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0		0	0		0	'	'	'
Loans and Leases Receivable, Gross, Consumer, Mortgage	'		'	'		'	'	'	50,034
One Through Four Family Residential [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	353		0	353		1,372	'	'	'
Loans and Leases Receivable, Gross, Consumer, Mortgage	'		'	'		'	'	'	25,327
Construction And Other Consumer Real Estate [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0		0	39		0	'	'	'
Construction And Other Consumer Real Estate [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0		'	0		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Construction	'		'	'		'	'	'	1,982
Construction And Other Consumer Real Estate [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0		'	39		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Construction	'		'	'		'	'	'	1,493
Consumer Loan [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	511		222	593		1,679	'	'	'
Consumer Loan [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0		0	0		0	'	'	'
Financing Receivable, Modifications, Recorded Investment	61,443		'	61,443		'	'	'	62,852
Consumer Loan [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	511		222	593		1,679	'	'	'
Financing Receivable, Modifications, Recorded Investment	20,503		'	20,503		'	'	'	28,329
Maturity Or Term Extension [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	29,444		'	29,444		'	'	'	43,069
Maturity Or Term Extension [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	26,187		'	26,187		'	'	'	30,128
Maturity Or Term Extension [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	3,257		'	3,257		'	'	'	12,941
Maturity Or Term Extension [Member] | Commercial And Industrial [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans Receivable, Gross, Commercial and Industrial	'		'	'		'	'	'	9,848
Maturity Or Term Extension [Member] | Commercial And Industrial [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans Receivable, Gross, Commercial and Industrial	'		'	'		'	'	'	5,814
Maturity Or Term Extension [Member] | Owner Occupied [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	'		'	'		'	'	'	1,482
Maturity Or Term Extension [Member] | Owner Occupied [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	'		'	'		'	'	'	1,489
Maturity Or Term Extension [Member] | Commercial Loan [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	9,660		'	9,660		'	'	'	11,330
Maturity Or Term Extension [Member] | Commercial Loan [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	2,526		'	2,526		'	'	'	8,478
Maturity Or Term Extension [Member] | Commercial Real Estate Construction Financing Receivable [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	'		'	'		'	'	'	8,231
Maturity Or Term Extension [Member] | Commercial Real Estate Construction Financing Receivable [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	'		'	'		'	'	'	1,555
Maturity Or Term Extension [Member] | Term [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	'		'	'		'	'	'	9,241
Maturity Or Term Extension [Member] | Term [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	'		'	'		'	'	'	0
Maturity Or Term Extension [Member] | Commercial Real Estate [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	15,420		'	15,420		'	'	'	17,472
Maturity Or Term Extension [Member] | Commercial Real Estate [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	71		'	71		'	'	'	1,555
Maturity Or Term Extension [Member] | Home Equity Line of Credit [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	'		'	'		'	'	'	0
Maturity Or Term Extension [Member] | One Through Four Family Residential [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Mortgage	'		'	'		'	'	'	997
Maturity Or Term Extension [Member] | One Through Four Family Residential [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Mortgage	'		'	'		'	'	'	1,396
Maturity Or Term Extension [Member] | Construction And Other Consumer Real Estate [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Construction	'		'	'		'	'	'	329
Maturity Or Term Extension [Member] | Construction And Other Consumer Real Estate [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Construction	'		'	'		'	'	'	1,260
Maturity Or Term Extension [Member] | Consumer Loan [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	1,107		'	1,107		'	'	'	1,326
Maturity Or Term Extension [Member] | Consumer Loan [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	660		'	660		'	'	'	2,908
Other Recorded Investment Resulting From Following Modification [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	41,724	[1]	'	41,724	[1]	'	'	'	65,594	[1]
Other Recorded Investment Resulting From Following Modification [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	22,591	[1]	'	22,591	[1]	'	'	'	36,424	[1]
Other Recorded Investment Resulting From Following Modification [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	19,133	[1]	'	19,133	[1]	'	'	'	29,170	[1]
Other Recorded Investment Resulting From Following Modification [Member] | Commercial And Industrial [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans Receivable, Gross, Commercial and Industrial	'		'	'		'	'	'	4,308	[1]
Other Recorded Investment Resulting From Following Modification [Member] | Commercial And Industrial [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans Receivable, Gross, Commercial and Industrial	'		'	'		'	'	'	8,948	[1]
Other Recorded Investment Resulting From Following Modification [Member] | Owner Occupied [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	'		'	'		'	'	'	9,659	[1]
Other Recorded Investment Resulting From Following Modification [Member] | Owner Occupied [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	'		'	'		'	'	'	10,482	[1]
Other Recorded Investment Resulting From Following Modification [Member] | Commercial Loan [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	15,359	[1]	'	15,359	[1]	'	'	'	13,967	[1]
Other Recorded Investment Resulting From Following Modification [Member] | Commercial Loan [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	11,429	[1]	'	11,429	[1]	'	'	'	19,430	[1]
Other Recorded Investment Resulting From Following Modification [Member] | Commercial Real Estate Construction Financing Receivable [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	'		'	'		'	'	'	4,119	[1]
Other Recorded Investment Resulting From Following Modification [Member] | Commercial Real Estate Construction Financing Receivable [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	'		'	'		'	'	'	5,303	[1]
Other Recorded Investment Resulting From Following Modification [Member] | Term [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	'		'	'		'	'	'	14,932	[1]
Other Recorded Investment Resulting From Following Modification [Member] | Term [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	'		'	'		'	'	'	315	[1]
Other Recorded Investment Resulting From Following Modification [Member] | Commercial Real Estate [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	5,839	[1]	'	5,839	[1]	'	'	'	19,051	[1]
Other Recorded Investment Resulting From Following Modification [Member] | Commercial Real Estate [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	3,633	[1]	'	3,633	[1]	'	'	'	5,618	[1]
Other Recorded Investment Resulting From Following Modification [Member] | Home Equity Line of Credit [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	'		'	'		'	'	'	323	[1]
Other Recorded Investment Resulting From Following Modification [Member] | One Through Four Family Residential [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Mortgage	'		'	'		'	'	'	3,083	[1]
Other Recorded Investment Resulting From Following Modification [Member] | One Through Four Family Residential [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Mortgage	'		'	'		'	'	'	3,901	[1]
Other Recorded Investment Resulting From Following Modification [Member] | Construction And Other Consumer Real Estate [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Construction	'		'	'		'	'	'	0	[1]
Other Recorded Investment Resulting From Following Modification [Member] | Construction And Other Consumer Real Estate [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Construction	'		'	'		'	'	'	0	[1]
Other Recorded Investment Resulting From Following Modification [Member] | Consumer Loan [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	1,393	[1]	'	1,393	[1]	'	'	'	3,406	[1]
Other Recorded Investment Resulting From Following Modification [Member] | Consumer Loan [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	4,071	[1]	'	4,071	[1]	'	'	'	4,122	[1]
Multiple Modification Types [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	216,826	[2]	'	216,826	[2]	'	'	'	266,865	[2]
Multiple Modification Types [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	154,512	[2]	'	154,512	[2]	'	'	'	203,727	[2]
Multiple Modification Types [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	62,314	[2]	'	62,314	[2]	'	'	'	63,138	[2]
Multiple Modification Types [Member] | Commercial And Industrial [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans Receivable, Gross, Commercial and Industrial	'		'	'		'	'	'	53,117	[2]
Multiple Modification Types [Member] | Commercial And Industrial [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans Receivable, Gross, Commercial and Industrial	'		'	'		'	'	'	10,395	[2]
Multiple Modification Types [Member] | Owner Occupied [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	'		'	'		'	'	'	23,576	[2]
Multiple Modification Types [Member] | Owner Occupied [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	'		'	'		'	'	'	14,927	[2]
Multiple Modification Types [Member] | Commercial Loan [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	59,320	[2]	'	59,320	[2]	'	'	'	76,693	[2]
Multiple Modification Types [Member] | Commercial Loan [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	38,956	[2]	'	38,956	[2]	'	'	'	25,322	[2]
Multiple Modification Types [Member] | Commercial Real Estate Construction Financing Receivable [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	'		'	'		'	'	'	28,295	[2]
Multiple Modification Types [Member] | Commercial Real Estate Construction Financing Receivable [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	'		'	'		'	'	'	8,617	[2]
Multiple Modification Types [Member] | Term [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	'		'	'		'	'	'	61,024	[2]
Multiple Modification Types [Member] | Term [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	'		'	'		'	'	'	14,861	[2]
Multiple Modification Types [Member] | Commercial Real Estate [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	58,177	[2]	'	58,177	[2]	'	'	'	89,319	[2]
Multiple Modification Types [Member] | Commercial Real Estate [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	13,097	[2]	'	13,097	[2]	'	'	'	23,478	[2]
Multiple Modification Types [Member] | Home Equity Line of Credit [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	'		'	'		'	'	'	332	[2]
Multiple Modification Types [Member] | One Through Four Family Residential [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Mortgage	'		'	'		'	'	'	35,869	[2]
Multiple Modification Types [Member] | One Through Four Family Residential [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Mortgage	'		'	'		'	'	'	14,109	[2]
Multiple Modification Types [Member] | Construction And Other Consumer Real Estate [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Construction	'		'	'		'	'	'	1,514	[2]
Multiple Modification Types [Member] | Construction And Other Consumer Real Estate [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Construction	'		'	'		'	'	'	229	[2]
Multiple Modification Types [Member] | Consumer Loan [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	37,015	[2]	'	37,015	[2]	'	'	'	37,715	[2]
Multiple Modification Types [Member] | Consumer Loan [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	10,261	[2]	'	10,261	[2]	'	'	'	14,338	[2]
Interest Rate Below Market [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	55,022		'	55,022		'	'	'	59,284
Interest Rate Below Market [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	34,099		'	34,099		'	'	'	36,092
Interest Rate Below Market [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	20,923		'	20,923		'	'	'	23,192
Interest Rate Below Market [Member] | Commercial And Industrial [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans Receivable, Gross, Commercial and Industrial	'		'	'		'	'	'	1,143
Interest Rate Below Market [Member] | Commercial And Industrial [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans Receivable, Gross, Commercial and Industrial	'		'	'		'	'	'	2,028
Interest Rate Below Market [Member] | Owner Occupied [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	'		'	'		'	'	'	22,841
Interest Rate Below Market [Member] | Owner Occupied [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	'		'	'		'	'	'	3,020
Interest Rate Below Market [Member] | Commercial Loan [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	23,242		'	23,242		'	'	'	23,984
Interest Rate Below Market [Member] | Commercial Loan [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	3,350		'	3,350		'	'	'	5,048
Interest Rate Below Market [Member] | Commercial Real Estate Construction Financing Receivable [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	'		'	'		'	'	'	1,067
Interest Rate Below Market [Member] | Commercial Real Estate Construction Financing Receivable [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	'		'	'		'	'	'	11,699
Interest Rate Below Market [Member] | Term [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	'		'	'		'	'	'	7,542
Interest Rate Below Market [Member] | Term [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	'		'	'		'	'	'	2,126
Interest Rate Below Market [Member] | Commercial Real Estate [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	7,414		'	7,414		'	'	'	8,609
Interest Rate Below Market [Member] | Commercial Real Estate [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	14,190		'	14,190		'	'	'	13,825
Interest Rate Below Market [Member] | Home Equity Line of Credit [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	'		'	'		'	'	'	743
Interest Rate Below Market [Member] | One Through Four Family Residential [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Mortgage	'		'	'		'	'	'	2,628
Interest Rate Below Market [Member] | One Through Four Family Residential [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Mortgage	'		'	'		'	'	'	4,315
Interest Rate Below Market [Member] | Construction And Other Consumer Real Estate [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Construction	'		'	'		'	'	'	128
Interest Rate Below Market [Member] | Construction And Other Consumer Real Estate [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Construction	'		'	'		'	'	'	4
Interest Rate Below Market [Member] | Consumer Loan [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	3,443		'	3,443		'	'	'	3,499
Interest Rate Below Market [Member] | Consumer Loan [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	3,383		'	3,383		'	'	'	4,319
Principal Forgiveness [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	20,999		'	20,999		'	'	'	32,616
Principal Forgiveness [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	19,206		'	19,206		'	'	'	28,931
Principal Forgiveness [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	1,793		'	1,793		'	'	'	3,685
Principal Forgiveness [Member] | Commercial And Industrial [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans Receivable, Gross, Commercial and Industrial	'		'	'		'	'	'	11,491
Principal Forgiveness [Member] | Commercial And Industrial [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans Receivable, Gross, Commercial and Industrial	'		'	'		'	'	'	0
Principal Forgiveness [Member] | Owner Occupied [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	'		'	'		'	'	'	987
Principal Forgiveness [Member] | Owner Occupied [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	'		'	'		'	'	'	1,043
Principal Forgiveness [Member] | Commercial Loan [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	986		'	986		'	'	'	12,478
Principal Forgiveness [Member] | Commercial Loan [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	0		'	0		'	'	'	1,043
Principal Forgiveness [Member] | Commercial Real Estate Construction Financing Receivable [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	'		'	'		'	'	'	0
Principal Forgiveness [Member] | Commercial Real Estate Construction Financing Receivable [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	'		'	'		'	'	'	0
Principal Forgiveness [Member] | Term [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	'		'	'		'	'	'	190
Principal Forgiveness [Member] | Term [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	'		'	'		'	'	'	0
Principal Forgiveness [Member] | Commercial Real Estate [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	184		'	184		'	'	'	190
Principal Forgiveness [Member] | Commercial Real Estate [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	0		'	0		'	'	'	0
Principal Forgiveness [Member] | Home Equity Line of Credit [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	'		'	'		'	'	'	9,438
Principal Forgiveness [Member] | One Through Four Family Residential [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Mortgage	'		'	'		'	'	'	6,814
Principal Forgiveness [Member] | One Through Four Family Residential [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Mortgage	'		'	'		'	'	'	1,606
Principal Forgiveness [Member] | Construction And Other Consumer Real Estate [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Construction	'		'	'		'	'	'	11
Principal Forgiveness [Member] | Construction And Other Consumer Real Estate [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Construction	'		'	'		'	'	'	0
Principal Forgiveness [Member] | Consumer Loan [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	18,036		'	18,036		'	'	'	16,263
Principal Forgiveness [Member] | Consumer Loan [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	1,793		'	1,793		'	'	'	2,642
Payment Deferral [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	10,652		'	10,652		'	'	'	14,006
Payment Deferral [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	8,399		'	8,399		'	'	'	9,997
Payment Deferral [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	2,253		'	2,253		'	'	'	4,009
Payment Deferral [Member] | Commercial And Industrial [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans Receivable, Gross, Commercial and Industrial	'		'	'		'	'	'	3,217
Payment Deferral [Member] | Commercial And Industrial [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans Receivable, Gross, Commercial and Industrial	'		'	'		'	'	'	473
Payment Deferral [Member] | Owner Occupied [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	'		'	'		'	'	'	1,291
Payment Deferral [Member] | Owner Occupied [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	'		'	'		'	'	'	1,593
Payment Deferral [Member] | Commercial Loan [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	4,338		'	4,338		'	'	'	4,508
Payment Deferral [Member] | Commercial Loan [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	1,903		'	1,903		'	'	'	2,066
Payment Deferral [Member] | Commercial Real Estate Construction Financing Receivable [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	'		'	'		'	'	'	1,063
Payment Deferral [Member] | Commercial Real Estate Construction Financing Receivable [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	'		'	'		'	'	'	0
Payment Deferral [Member] | Term [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	'		'	'		'	'	'	3,783
Payment Deferral [Member] | Term [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	'		'	'		'	'	'	1,943
Payment Deferral [Member] | Commercial Real Estate [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	3,612		'	3,612		'	'	'	4,846
Payment Deferral [Member] | Commercial Real Estate [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	15		'	15		'	'	'	1,943
Payment Deferral [Member] | Home Equity Line of Credit [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	'		'	'		'	'	'	0
Payment Deferral [Member] | One Through Four Family Residential [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Mortgage	'		'	'		'	'	'	643
Payment Deferral [Member] | One Through Four Family Residential [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Mortgage	'		'	'		'	'	'	0
Payment Deferral [Member] | Construction And Other Consumer Real Estate [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Construction	'		'	'		'	'	'	0
Payment Deferral [Member] | Construction And Other Consumer Real Estate [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Construction	'		'	'		'	'	'	0
Payment Deferral [Member] | Consumer Loan [Member] | Accruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	449		'	449		'	'	'	643
Payment Deferral [Member] | Consumer Loan [Member] | Nonaccruing [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	335		'	335		'	'	'	0
Nonaccruing [Member] | Commercial And Industrial [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans Receivable, Gross, Commercial and Industrial	34,196		'	34,196		'	'	'	'
Nonaccruing [Member] | Owner Occupied [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	22,892		'	22,892		'	'	'	'
Nonaccruing [Member] | Municipal [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	1,076		'	1,076		'	'	'	1,175
Nonaccruing [Member] | Commercial Real Estate Construction Financing Receivable [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	21,426		'	21,426		'	'	'	'
Nonaccruing [Member] | Term [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	9,580		'	9,580		'	'	'	'
Nonaccruing [Member] | Home Equity Line of Credit [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Home Equity	1,216		'	1,216		'	'	'	'
Nonaccruing [Member] | One Through Four Family Residential [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Mortgage	18,434		'	18,434		'	'	'	'
Nonaccruing [Member] | Construction And Other Consumer Real Estate [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Construction	853		'	853		'	'	'	'
Nonaccruing [Member] | Revolving Credit Facility [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Revolving, Credit Card	0		'	0		'	'	'	252
Nonaccruing [Member] | Maturity Or Term Extension [Member] | Commercial And Industrial [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans Receivable, Gross, Commercial and Industrial	593		'	593		'	'	'	'
Nonaccruing [Member] | Maturity Or Term Extension [Member] | Owner Occupied [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	857		'	857		'	'	'	'
Nonaccruing [Member] | Maturity Or Term Extension [Member] | Municipal [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	1,076		'	1,076		'	'	'	1,175
Nonaccruing [Member] | Maturity Or Term Extension [Member] | Commercial Real Estate Construction Financing Receivable [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	71		'	71		'	'	'	'
Nonaccruing [Member] | Maturity Or Term Extension [Member] | Term [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	0		'	0		'	'	'	'
Nonaccruing [Member] | Maturity Or Term Extension [Member] | Home Equity Line of Credit [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Home Equity	0		'	0		'	'	'	'
Nonaccruing [Member] | Maturity Or Term Extension [Member] | One Through Four Family Residential [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Mortgage	47		'	47		'	'	'	'
Nonaccruing [Member] | Maturity Or Term Extension [Member] | Construction And Other Consumer Real Estate [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Construction	613		'	613		'	'	'	'
Nonaccruing [Member] | Maturity Or Term Extension [Member] | Revolving Credit Facility [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Revolving, Credit Card	0		'	0		'	'	'	252
Nonaccruing [Member] | Other Recorded Investment Resulting From Following Modification [Member] | Commercial And Industrial [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans Receivable, Gross, Commercial and Industrial	5,264	[1]	'	5,264	[1]	'	'	'	'
Nonaccruing [Member] | Other Recorded Investment Resulting From Following Modification [Member] | Owner Occupied [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	6,165	[1]	'	6,165	[1]	'	'	'	'
Nonaccruing [Member] | Other Recorded Investment Resulting From Following Modification [Member] | Municipal [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	0		'	0		'	'	'	0
Nonaccruing [Member] | Other Recorded Investment Resulting From Following Modification [Member] | Commercial Real Estate Construction Financing Receivable [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	3,342	[1]	'	3,342	[1]	'	'	'	'
Nonaccruing [Member] | Other Recorded Investment Resulting From Following Modification [Member] | Term [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	291	[1]	'	291	[1]	'	'	'	'
Nonaccruing [Member] | Other Recorded Investment Resulting From Following Modification [Member] | Home Equity Line of Credit [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Home Equity	218	[1]	'	218	[1]	'	'	'	'
Nonaccruing [Member] | Other Recorded Investment Resulting From Following Modification [Member] | One Through Four Family Residential [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Mortgage	3,853	[1]	'	3,853	[1]	'	'	'	'
Nonaccruing [Member] | Other Recorded Investment Resulting From Following Modification [Member] | Construction And Other Consumer Real Estate [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Construction	0	[1]	'	0	[1]	'	'	'	'
Nonaccruing [Member] | Other Recorded Investment Resulting From Following Modification [Member] | Revolving Credit Facility [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Revolving, Credit Card	0	[1]	'	0	[1]	'	'	'	0	[1]
Nonaccruing [Member] | Multiple Modification Types [Member] | Commercial And Industrial [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans Receivable, Gross, Commercial and Industrial	26,785	[2]	'	26,785	[2]	'	'	'	'
Nonaccruing [Member] | Multiple Modification Types [Member] | Owner Occupied [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	12,171	[2]	'	12,171	[2]	'	'	'	'
Nonaccruing [Member] | Multiple Modification Types [Member] | Municipal [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	0		'	0		'	'	'	0
Nonaccruing [Member] | Multiple Modification Types [Member] | Commercial Real Estate Construction Financing Receivable [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	6,776	[2]	'	6,776	[2]	'	'	'	'
Nonaccruing [Member] | Multiple Modification Types [Member] | Term [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	6,321	[2]	'	6,321	[2]	'	'	'	'
Nonaccruing [Member] | Multiple Modification Types [Member] | Home Equity Line of Credit [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Home Equity	305	[2]	'	305	[2]	'	'	'	'
Nonaccruing [Member] | Multiple Modification Types [Member] | One Through Four Family Residential [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Mortgage	9,848	[2]	'	9,848	[2]	'	'	'	'
Nonaccruing [Member] | Multiple Modification Types [Member] | Construction And Other Consumer Real Estate [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Construction	108	[2]	'	108	[2]	'	'	'	'
Nonaccruing [Member] | Multiple Modification Types [Member] | Revolving Credit Facility [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Revolving, Credit Card	0	[2]	'	0	[2]	'	'	'	0	[2]
Nonaccruing [Member] | Interest Rate Below Market [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	0		'	0		'	'	'	'
Nonaccruing [Member] | Interest Rate Below Market [Member] | Commercial And Industrial [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans Receivable, Gross, Commercial and Industrial	564		'	564		'	'	'	'
Nonaccruing [Member] | Interest Rate Below Market [Member] | Owner Occupied [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	2,786		'	2,786		'	'	'	'
Nonaccruing [Member] | Interest Rate Below Market [Member] | Municipal [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	'		'	'		'	'	'	0
Nonaccruing [Member] | Interest Rate Below Market [Member] | Commercial Real Estate Construction Financing Receivable [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	11,237		'	11,237		'	'	'	'
Nonaccruing [Member] | Interest Rate Below Market [Member] | Term [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	2,953		'	2,953		'	'	'	'
Nonaccruing [Member] | Interest Rate Below Market [Member] | Home Equity Line of Credit [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Home Equity	0		'	0		'	'	'	'
Nonaccruing [Member] | Interest Rate Below Market [Member] | One Through Four Family Residential [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Mortgage	3,380		'	3,380		'	'	'	'
Nonaccruing [Member] | Interest Rate Below Market [Member] | Construction And Other Consumer Real Estate [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Construction	3		'	3		'	'	'	'
Nonaccruing [Member] | Interest Rate Below Market [Member] | Revolving Credit Facility [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Revolving, Credit Card	0		'	0		'	'	'	0
Nonaccruing [Member] | Principal Forgiveness [Member] | Commercial And Industrial [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans Receivable, Gross, Commercial and Industrial	0		'	0		'	'	'	'
Nonaccruing [Member] | Principal Forgiveness [Member] | Owner Occupied [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	0		'	0		'	'	'	'
Nonaccruing [Member] | Principal Forgiveness [Member] | Municipal [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	0		'	0		'	'	'	0
Nonaccruing [Member] | Principal Forgiveness [Member] | Commercial Real Estate Construction Financing Receivable [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	0		'	0		'	'	'	'
Nonaccruing [Member] | Principal Forgiveness [Member] | Term [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	0		'	0		'	'	'	'
Nonaccruing [Member] | Principal Forgiveness [Member] | Home Equity Line of Credit [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Home Equity	648		'	648		'	'	'	'
Nonaccruing [Member] | Principal Forgiveness [Member] | One Through Four Family Residential [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Mortgage	1,106		'	1,106		'	'	'	'
Nonaccruing [Member] | Principal Forgiveness [Member] | Construction And Other Consumer Real Estate [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Construction	39		'	39		'	'	'	'
Nonaccruing [Member] | Principal Forgiveness [Member] | Revolving Credit Facility [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Revolving, Credit Card	0		'	0		'	'	'	0
Nonaccruing [Member] | Payment Deferral [Member] | Commercial And Industrial [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans Receivable, Gross, Commercial and Industrial	990		'	990		'	'	'	'
Nonaccruing [Member] | Payment Deferral [Member] | Owner Occupied [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	913		'	913		'	'	'	'
Nonaccruing [Member] | Payment Deferral [Member] | Municipal [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	0		'	0		'	'	'	0
Nonaccruing [Member] | Payment Deferral [Member] | Commercial Real Estate Construction Financing Receivable [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	0		'	0		'	'	'	'
Nonaccruing [Member] | Payment Deferral [Member] | Term [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Financing Receivable, Modifications, Recorded Investment	15		'	15		'	'	'	'
Nonaccruing [Member] | Payment Deferral [Member] | Home Equity Line of Credit [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Home Equity	45		'	45		'	'	'	'
Nonaccruing [Member] | Payment Deferral [Member] | One Through Four Family Residential [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Mortgage	200		'	200		'	'	'	'
Nonaccruing [Member] | Payment Deferral [Member] | Construction And Other Consumer Real Estate [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Construction	90		'	90		'	'	'	'
Nonaccruing [Member] | Payment Deferral [Member] | Revolving Credit Facility [Member]	'		'	'		'	'	'	'
Financing Receivable, Modifications [Line Items]	'		'	'		'	'	'	'
Loans and Leases Receivable, Gross, Consumer, Revolving, Credit Card	$0		'	$0		'	'	'	$0
[1]	Includes TDRs that resulted from other modification types including, but not limited to, a legal judgment awarded on different terms, a bankruptcy plan confirmed on different terms, a settlement that includes the delivery of collateral in exchange for debt reduction, etc.
[2]	Includes TDRs that resulted from a combination of any of the previous modification types.

Recovered_Sheet4

Loans And Allowance For Credit Losses (Schedule Of Outstanding Balances Of All Required Payments And The Related Carrying Amounts For PCI Loans) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Loans And Allowance For Credit Losses [Abstract]	'	'
Commercial	$116,955	$150,191
Commercial real estate	115,320	233,720
Consumer	19,752	28,608
Outstanding balance	252,027	412,519
Certain Loans Acquired in Transfer Accounted for as Debt Securities, Carrying Amount, Net	184,956	311,797
ALLL	2,606	6,478
Carrying amount, net	$182,350	$305,319

Recovered_Sheet5

Loans And Allowance For Credit Losses (Schedule Of Changes In The Accretable Yield For PCI Loans) (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
Loans And Allowance For Credit Losses [Abstract]	'	'	'	'
Document Fiscal Year Focus	'	'	'2014	'
Changes in Accretable Yield [Roll Forward]	'	'	'	'
Balance at beginning of period	$60,834	$104,483	$77,528	$134,461
Accretion	-10,279	-19,941	-46,767	-78,994
Reclassification from nonaccretable difference	2,955	7,908	17,406	31,092
Disposals and other	-38	3,308	-5,305	9,199
Balance at end of period	$53,472	$95,758	$53,472	$95,758

Recovered_Sheet6

Loans And Allowance For Credit Losses (Schedule Of Changes In The FDIC Indemnification Asset) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Loans And Allowance For Credit Losses [Abstract]	'	'
FDIC Indemnification Asset	$0.80	$26.40

Derivative_Instruments_And_Hed2

Derivative Instruments And Hedging Activities (Narrative) (Details) (USD $)

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Dec. 31, 2013

Jul. 28, 2010

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Dec. 31, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Interest Rate Swaps [Member]

Derivatives Designated As Hedging Instruments [Member]

Derivatives Designated As Hedging Instruments [Member]

Derivatives Designated As Hedging Instruments [Member]

Derivatives Designated As Hedging Instruments [Member]

Derivatives Designated As Hedging Instruments [Member]

Derivatives Designated As Hedging Instruments [Member]

Derivatives Designated As Hedging Instruments [Member]

Derivatives Designated As Hedging Instruments [Member]

Derivatives Designated As Hedging Instruments [Member]

Other Liabilities [Member]

Other Liabilities [Member]

Other Liabilities [Member]

Other Liabilities [Member]

Other Liabilities [Member]

Other Liabilities [Member]

Total Return Swap [Member]

Cash Flow Hedging [Member]

Cash Flow Hedging [Member]

Cash Flow Hedging [Member]

Cash Flow Hedging [Member]

Derivatives Designated As Hedging Instruments [Member]

Derivatives Designated As Hedging Instruments [Member]

Derivative Financial Instruments, Liabilities [Member]

Derivative Financial Instruments, Liabilities [Member]

Derivative [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Derivative Instruments in Hedges, Net Investment in Foreign Operations, Assets, Fair Value

$0

'

$0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Losses on derivative instruments from counterparty nonperformance

0

'

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Gross amounts recognized

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

56,036,000

68,397,000

Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net

770,000

97,000

1,698,000

2,479,000

'

'

770,000

97,000

1,698,000

2,479,000

'

770,000

[1]

97,000

[1]

1,698,000

[1]

2,479,000

[1]

'

'

'

'

'

'

Derivative Liability, Fair Value, Gross Liability

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

56,036,000

68,397,000

670,000

583,000

'

'

Fair values of derivative assets reduced (increased) by net credit valuation adjustments

1,700,000

2,400,000

1,700,000

2,400,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Fair values of derivative liabilities reduced (increased) by net credit valuation adjustments

300,000

2,000,000

300,000

2,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Future Expected

'

'

2,900,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total derivatives, Notional amount

3,293,663,000

'

3,293,663,000

'

4,979,378,000

1,160,000,000

225,000,000

'

225,000,000

'

100,000,000

'

'

'

'

'

'

'

'

'

'

Cash collateral pledged for derivative liabilities

40,700,000

'

40,700,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Additional collateral that would be required to be pledge if credit rating was downgraded by one notch

1,400,000

'

1,400,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Par Amount of Portfolio Covered by TRS

545,000,000

'

545,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Reduction of Risk-weighted Assets from TRS

$900,000,000

'

$900,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

[1]

Amounts recognized in OCI and reclassified from accumulated OCI (bAOCIb) represent the effective portion of the derivative gain (loss).

Derivative_Instruments_And_Hed3

Derivative Instruments And Hedging Activities (Schedule Of Notional Amounts And Recorded Gross Fair Values And Related Gain (Loss) Of Derivative Instruments) (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		Dec. 31, 2013
Derivative [Line Items]	'		'		'		'		'
Total derivatives, Notional amount	$3,293,663		'		$3,293,663		'		$4,979,378
Amount of derivative gain (loss), recognized in OCI	-845		414		1,681		408		'
Amount of derivative gain (loss), Reclassified from AOCI to interest income	770		97		1,698		2,479		'
Derivatives instruments, Noninterest income (expense)	3,662		-4,228		-1,095		-1,967		'
Derivatives designated as hedging instruments, Offset to interest expense	496		796		1,822		2,342		'
Cash Flow Hedging [Member]	'		'		'		'		'
Derivative [Line Items]	'		'		'		'		'
Derivatives instruments, Noninterest income (expense)	0	[1]	0	[1]	0	[1]	0	[1]	'
Other Assets [Member]	'		'		'		'		'
Derivative [Line Items]	'		'		'		'		'
Derivatives hedging instruments, assets	54,720		'		54,720		'		65,683
Other Liabilities [Member]	'		'		'		'		'
Derivative [Line Items]	'		'		'		'		'
Derivatives hedging instruments, liabilities	56,036		'		56,036		'		68,397
Derivatives Designated As Hedging Instruments [Member]	'		'		'		'		'
Derivative [Line Items]	'		'		'		'		'
Total derivatives, Notional amount	225,000		'		225,000		'		100,000
Amount of derivative gain (loss), recognized in OCI	-845		414		1,681		408		'
Amount of derivative gain (loss), Reclassified from AOCI to interest income	770		97		1,698		2,479		'
Derivatives instruments, Noninterest income (expense)	0		0		0		0		'
Derivatives designated as hedging instruments, Offset to interest expense	496		796		1,822		2,342		'
Derivatives Designated As Hedging Instruments [Member] | Cash Flow Hedging [Member]	'		'		'		'		'
Derivative [Line Items]	'		'		'		'		'
Amount of derivative gain (loss), recognized in OCI	-845	[1]	414	[1]	1,681	[1]	408	[1]	'
Amount of derivative gain (loss), Reclassified from AOCI to interest income	770	[1]	97	[1]	1,698	[1]	2,479	[1]	'
Derivatives Designated As Hedging Instruments [Member] | Other Assets [Member]	'		'		'		'		'
Derivative [Line Items]	'		'		'		'		'
Derivatives hedging instruments, assets	271		'		271		'		202
Derivatives Designated As Hedging Instruments [Member] | Other Liabilities [Member]	'		'		'		'		'
Derivative [Line Items]	'		'		'		'		'
Derivatives hedging instruments, liabilities	670		'		670		'		583
Derivatives Designated As Hedging Instruments [Member] | Interest Rate Swaps [Member] | Cash Flow Hedging [Member]	'		'		'		'		'
Derivative [Line Items]	'		'		'		'		'
Total derivatives, Notional amount	225,000	[1]	'		225,000	[1]	'		100,000	[1]
Amount of derivative gain (loss), recognized in OCI	-845	[1]	414	[1]	1,681		408		'
Amount of derivative gain (loss), Reclassified from AOCI to interest income	770	[1]	97	[1]	1,698		2,479		'
Derivatives instruments, Noninterest income (expense)	0	[1]	0	[1]	0		0		'
Derivatives Designated As Hedging Instruments [Member] | Interest Rate Swaps [Member] | Other Assets [Member] | Cash Flow Hedging [Member]	'		'		'		'		'
Derivative [Line Items]	'		'		'		'		'
Derivatives hedging instruments, assets	271	[1]	'		271	[1]	'		202	[1]
Derivatives Designated As Hedging Instruments [Member] | Interest Rate Swaps [Member] | Other Liabilities [Member] | Cash Flow Hedging [Member]	'		'		'		'		'
Derivative [Line Items]	'		'		'		'		'
Derivatives hedging instruments, liabilities	670	[1]	'		670	[1]	'		583	[1]
Derivatives Designated As Hedging Instruments [Member] | Terminated Swaps On Long-Term Debt [Member] | Fair Value Hedges [Member]	'		'		'		'		'
Derivative [Line Items]	'		'		'		'		'
Derivatives designated as hedging instruments, Offset to interest expense	496		796		1,822		2,342		'
Derivatives Not Designated As Hedging Instruments [Member]	'		'		'		'		'
Derivative [Line Items]	'		'		'		'		'
Total derivatives, Notional amount	3,068,663		'		3,068,663		'		4,879,378
Derivatives instruments, Noninterest income (expense)	3,662		-4,228		-1,095		-1,967		'
Derivatives Not Designated As Hedging Instruments [Member] | Other Assets [Member]	'		'		'		'		'
Derivative [Line Items]	'		'		'		'		'
Derivatives hedging instruments, assets	54,449		'		54,449		'		65,481
Derivatives Not Designated As Hedging Instruments [Member] | Other Liabilities [Member]	'		'		'		'		'
Derivative [Line Items]	'		'		'		'		'
Derivatives hedging instruments, liabilities	55,366		'		55,366		'		67,814
Derivatives Not Designated As Hedging Instruments [Member] | Foreign Exchange [Member]	'		'		'		'		'
Derivative [Line Items]	'		'		'		'		'
Total derivatives, Notional amount	281,022		'		281,022		'		751,066
Derivatives instruments, Noninterest income (expense)	2,242		-536		5,951		-16,350		'
Derivatives Not Designated As Hedging Instruments [Member] | Foreign Exchange [Member] | Other Assets [Member]	'		'		'		'		'
Derivative [Line Items]	'		'		'		'		'
Derivatives hedging instruments, assets	9,317		'		9,317		'		9,614
Derivatives Not Designated As Hedging Instruments [Member] | Foreign Exchange [Member] | Other Liabilities [Member]	'		'		'		'		'
Derivative [Line Items]	'		'		'		'		'
Derivatives hedging instruments, liabilities	8,747		'		8,747		'		8,643
Derivatives Not Designated As Hedging Instruments [Member] | Interest Rate Swaps [Member]	'		'		'		'		'
Derivative [Line Items]	'		'		'		'		'
Total derivatives, Notional amount	14,301		'		14,301		'		65,850
Derivatives instruments, Noninterest income (expense)	1		765		355		678		'
Derivatives Not Designated As Hedging Instruments [Member] | Interest Rate Swaps [Member] | Other Assets [Member]	'		'		'		'		'
Derivative [Line Items]	'		'		'		'		'
Derivatives hedging instruments, assets	0		'		0		'		420
Derivatives Not Designated As Hedging Instruments [Member] | Interest Rate Swaps [Member] | Other Liabilities [Member]	'		'		'		'		'
Derivative [Line Items]	'		'		'		'		'
Derivatives hedging instruments, liabilities	67		'		67		'		421
Derivatives Not Designated As Hedging Instruments [Member] | Interest Rate Swaps For Customers [Member]	'		'		'		'		'
Derivative [Line Items]	'		'		'		'		'
Total derivatives, Notional amount	2,773,340	[2]	'		2,773,340	[2]	'		2,902,776	[2]
Derivatives instruments, Noninterest income (expense)	1,419	[2]	883	[2]	493		6,631		'
Derivatives Not Designated As Hedging Instruments [Member] | Interest Rate Swaps For Customers [Member] | Other Assets [Member]	'		'		'		'		'
Derivative [Line Items]	'		'		'		'		'
Derivatives hedging instruments, assets	45,132	[2]	'		45,132	[2]	'		55,447	[2]
Derivatives Not Designated As Hedging Instruments [Member] | Interest Rate Swaps For Customers [Member] | Other Liabilities [Member]	'		'		'		'		'
Derivative [Line Items]	'		'		'		'		'
Derivatives hedging instruments, liabilities	46,552	[2]	'		46,552	[2]	'		54,688	[2]
Derivatives Not Designated As Hedging Instruments [Member] | Futures Contracts [Member]	'		'		'		'		'
Derivative [Line Items]	'		'		'		'		'
Derivatives instruments, Noninterest income (expense)	'		2		'		7,072		'
Derivatives Not Designated As Hedging Instruments [Member] | Total Return Swap [Member]	'		'		'		'		'
Derivative [Line Items]	'		'		'		'		'
Total derivatives, Notional amount	0		'		0		'		1,159,686
Derivatives instruments, Noninterest income (expense)	0		-5,342		-7,894		'		'
Derivatives Not Designated As Hedging Instruments [Member] | Total Return Swap [Member] | Other Assets [Member]	'		'		'		'		'
Derivative [Line Items]	'		'		'		'		'
Derivatives hedging instruments, assets	0		'		0		'		0
Derivatives Not Designated As Hedging Instruments [Member] | Total Return Swap [Member] | Other Liabilities [Member]	'		'		'		'		'
Derivative [Line Items]	'		'		'		'		'
Derivatives hedging instruments, liabilities	$0		'		$0		'		$4,062
[1]	Amounts recognized in OCI and reclassified from accumulated OCI (bAOCIb) represent the effective portion of the derivative gain (loss).
[2]	Amounts include both the customer swaps and the offsetting derivative contracts.

Debt_And_Shareholders_Equity_N

Debt And Shareholders' Equity (Narrative) (Details) (USD $)

0 Months Ended

3 Months Ended

6 Months Ended

9 Months Ended

0 Months Ended

Sep. 30, 2014

Sep. 23, 2014

Aug. 16, 2014

Jul. 29, 2014

15-May-14

Sep. 30, 2014

Mar. 31, 2014

Sep. 30, 2013

Jun. 30, 2014

Sep. 30, 2014

Sep. 30, 2013

Sep. 22, 2014

Jul. 28, 2014

Dec. 31, 2013

Aug. 16, 2014

Nov. 15, 2014

Long-Term Senior Notes [Member]

Scenario, Forecast [Member]

Debt And Shareholders' Equity [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Minimum Interest rate on Long-Term Senior Debt Repayments

'

'

'

'

'

'

'

'

2.80%

'

'

'

'

'

'

'

Schedule of Long-term Debt Instruments [Table Text Block]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Long-term debt is summarized as follows:

(In thousands)

30-Sep-14

31-Dec-13

Junior subordinated debentures related to trust preferred securities

$

168,043

$

168,043

Convertible subordinated notes

127,679

184,147

Subordinated notes

336,250

443,231

Senior notes

458,798

1,454,779

FHLB advances

22,302

22,736

Capital lease obligations and other

605

639

$

1,113,677

$

2,273,575

Long-term Senior notes redeemed

'

'

'

'

'

$760,000,000

'

'

'

$1,015,000,000

'

'

'

'

'

'

Senior Notes, early tender offer

500,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Senior Notes, percentage tendered

56.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Senior Notes, rate

4.00%

7.80%

3.10%

'

'

'

'

'

'

4.50%

'

'

'

'

'

4.20%

Debt extinguishment cost

'

'

'

'

'

44,422,000

'

0

'

44,422,000

40,282,000

'

'

'

'

'

Debt extinguishment early tender premiums

'

'

'

'

'

34,000,000

'

'

'

'

'

'

'

'

'

'

Debt Instrument, Unamortized Discount

9,000,000

'

'

'

'

9,000,000

'

'

'

9,000,000

'

'

'

'

'

'

Debt Instrument, Fee Amount

1,000,000

'

'

'

'

1,000,000

'

'

'

1,000,000

'

'

'

'

'

'

Junior Subordinated Notes

168,043,000

'

'

'

'

168,043,000

'

'

'

168,043,000

'

'

'

168,043,000

'

'

Convertible Subordinated Debt

127,679,000

'

'

'

'

127,679,000

'

'

'

127,679,000

'

'

'

184,147,000

'

'

Subordinated Debt

336,250,000

'

'

'

'

336,250,000

'

'

'

336,250,000

'

'

'

443,231,000

'

'

Stock Issued During Period, Value, New Issues

'

'

'

'

'

400,000,000

'

'

'

'

'

'

'

'

'

'

Common Stock, Value, Issued

4,717,295,000

'

'

'

'

4,717,295,000

'

'

'

4,717,295,000

'

'

525,000,000

4,179,024,000

'

'

Common stock, issued shares

202,898,491

'

'

'

'

202,898,491

'

'

'

202,898,491

'

'

17,600,000

184,677,696

'

'

Other Comprehensive Income (Loss), before Reclassifications, Net of Tax

'

'

'

'

'

'

'

'

'

101,401,000

50,422,000

'

'

'

'

'

Debt [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Repayments of notes

'

'

'

'

'

'

'

'

'

'

'

'

'

'

18,000,000

'

Repayments of Medium-term Notes

'

'

'

'

'

'

50,000,000

'

205,000,000

255,000,000

'

'

'

'

'

'

Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax

'

'

'

'

'

'

'

'

'

-20,227,000

11,232,000

'

'

'

'

'

Senior Notes, Current

'

242,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Long-term Senior Notes, optional early redemption

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

27,000,000

Subordinate notes redeemed at maturity

'

'

'

'

'

'

'

'

'

'

'

75,000,000

'

'

'

'

Debt Instrument, Interest Rate Terms

'

'3mL + 1.25%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Subordinated Borrowing, Interest Rate

'

'

'

'

0.00%

'

'

'

'

'

'

'

'

'

'

'

Subordinated Debt

'

'

'

'

30,000,000

'

'

'

'

'

'

'

'

'

'

'

Convertible Subordinated Debt

'

'

'

'

76,000,000

'

'

'

'

'

'

'

'

'

'

'

Common Stock Price Per Share

'

'

'

'

'

'

'

'

'

'

'

'

$29.80

'

'

'

Common stock value net of commission and fees

'

'

'

516,000,000

'

'

'

'

'

'

'

'

'

'

'

'

Senior Notes

458,798,000

'

'

'

'

458,798,000

'

'

'

458,798,000

'

'

'

1,454,779,000

'

'

Federal Home Loan Bank, Advances, Branch of FHLB Bank, Amount of Advances

22,302,000

'

'

'

'

22,302,000

'

'

'

22,302,000

'

'

'

22,736,000

'

'

Capital Lease Obligations

605,000

'

'

'

'

605,000

'

'

'

605,000

'

'

'

639,000

'

'

Long-term Debt, Gross

$1,113,677,000

'

'

'

'

$1,113,677,000

'

'

'

$1,113,677,000

'

'

'

$2,273,575,000

'

'

Maximum Interest Rate on Long-Term Senior Debt Repayments

'

'

'

'

'

'

'

'

5.50%

'

'

'

'

'

'

'

Debt_And_Shareholders_Equity_S

Debt And Shareholders' Equity (Schedule Of Changes In Accumulated Other Comprehensive Income (Loss)) (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
Debt And Shareholders' Equity [Line Items]	'	'	'	'
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Tax	'	'	$61,714	$40,354
Interest income expense, net, after tax	79,127	209,707	259,807	353,416
Income Tax Expense (Benefit)	53,109	61,107	179,202	164,832
Interest Income (Expense), Net	416,818	415,521	1,249,566	1,264,293
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net	0	9,067	27	23,401
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	'	'	101,401	50,422
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	'	'	-20,227	11,232
Beginning balance	'	'	-192,101	-446,157
Other comprehensive income (loss)	25,910	-9,947	81,174	61,654
Ending balance	-110,927	-384,503	-110,927	-384,503
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Tax	'	'	-214	-3,123
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Tax	'	'	0	0
Other Comprehensive Income (Loss), Tax	'	'	61,500	37,231
Accumulated Net Unrealized Investment Gain (Loss) [Member]	'	'	'	'
Debt And Shareholders' Equity [Line Items]	'	'	'	'
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	'	'	100,723	53,896
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	'	'	-19,206	12,715
Beginning balance	'	'	-168,805	-403,893
Other comprehensive income (loss)	'	'	81,517	66,611
Ending balance	-87,288	-337,282	-87,288	-337,282
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]	'	'	'	'
Debt And Shareholders' Equity [Line Items]	'	'	'	'
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	'	'	678	-3,474
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	'	'	-1,021	-1,483
Beginning balance	'	'	1,556	8,071
Other comprehensive income (loss)	'	'	-343	-4,957
Ending balance	1,213	3,114	1,213	3,114
Accumulated Defined Benefit Plans Adjustment [Member]	'	'	'	'
Debt And Shareholders' Equity [Line Items]	'	'	'	'
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	'	'	0	0
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	'	'	0	0
Beginning balance	'	'	-24,852	-50,335
Other comprehensive income (loss)	'	'	0	0
Ending balance	-24,852	-50,335	-24,852	-50,335
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Net Unrealized Investment Gain (Loss) [Member]	'	'	'	'
Debt And Shareholders' Equity [Line Items]	'	'	'	'
Gain (Loss) on Investments, Excluding Other than Temporary Impairments	-13,901	1,580	22,039	3,726
Interest income expense, net, after tax	0	-5,588	-17	-14,136
Income Tax Expense (Benefit)	0	-3,479	-10	-8,863
Other than temporary impairment losses investments accretion of noncreidt portion held to maturity securities, after tax	-8,162	-4,897	19,206	-12,715
Other than temporary impairment losses investments accretion of noncredit portion held to maturity securities, tax	191	211	576	597
Other than Temporary Impairment Losses, Investments, Accretion of Noncredit Portion, Held-to-maturity Securities, before Tax	-467	-496	-1,411	-1,477
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net	0	-9,067	-27	-22,999
Interest Rate Contract [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]	'	'	'	'
Debt And Shareholders' Equity [Line Items]	'	'	'	'
Interest income expense, net, after tax	463	57	1,021	1,483
Income Tax Expense (Benefit)	307	40	677	996
Interest Income (Expense), Net	770	97	1,698	2,479
Fixed income securities gain loss [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Net Unrealized Investment Gain (Loss) [Member]	'	'	'	'
Debt And Shareholders' Equity [Line Items]	'	'	'	'
Interest income expense, net, after tax	-7,886	976	20,058	2,301
Income Tax Expense (Benefit)	($6,015)	$604	$1,981	$1,425

Income_Taxes_Details

Income Taxes (Details) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]	'	'
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	38.25%	'
Income Tax Examination, Interest Expense	$2.50	'
Net deferred tax assets	$219	$304

Fair_Value_Narrative_Details

Fair Value (Narrative) (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Derivatives, Fair Value [Line Items]	'	'	'	'	'
Fair Value Level Transfers Among Levels 1, 2, and 3	0	0	0	0	'
Other noninterest-bearing investments valued under the cost method	$46,800,000	'	$46,800,000	'	$53,600,000
Federal Home Loan Bank Stock and Federal Reserve Bank Stock	249,800,000	'	249,800,000	'	248,400,000
Net gains on sale of OREO properties	-875,000	831,000	-2,216,000	-2,736,000	'
Principal amount of other real estate owned property sold	'	'	30,700,000	61,100,000	'
OREO Properties [Member]	'	'	'	'	'
Derivatives, Fair Value [Line Items]	'	'	'	'	'
Net gains on sale of OREO properties	1,900,000	3,500,000	4,400,000	9,800,000	'
Impairment of OREO properties	'	-200,000	-500,000	-600,000	'
Level 2 [Member]	'	'	'	'	'
Derivatives, Fair Value [Line Items]	'	'	'	'	'
Fair value of AFS securities	2,856,111,000	'	2,856,111,000	'	2,137,259,000
Level 3 [Member]	'	'	'	'	'
Derivatives, Fair Value [Line Items]	'	'	'	'	'
Fair value of AFS securities	541,139,000	'	541,139,000	'	1,304,877,000
Third Party Pricing Service [Member] | Level 2 [Member]	'	'	'	'	'
Derivatives, Fair Value [Line Items]	'	'	'	'	'
Fair value of AFS securities	0	'	0	'	'
Third Party Pricing Service [Member] | Level 3 [Member]	'	'	'	'	'
Derivatives, Fair Value [Line Items]	'	'	'	'	'
Fair value of AFS securities	$0	'	$0	'	'

Fair_Value_Schedule_Of_Assets_

Fair Value (Schedule Of Assets And Liabilities Measured At Fair Value By Class On A Recurring Basis) (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	Dec. 31, 2013
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'	'
Fair Value Level Transfers Among Levels 1, 2, and 3	0	0	0	0	'
Trading account	$55,419	'	$55,419	'	$34,559
Level 1 [Member]	'	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'	'
Investments, Fair Value Disclosure	166,158	'	166,158	'	259,750
Total assets	263,748	'	263,748	'	355,548
Securities sold, not yet purchased	26,251	'	26,251	'	73,606
Total liabilities	123,271	'	123,271	'	168,433
Level 1 [Member] | Mutual Funds And Other [Member]	'	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'	'
Investments, Fair Value Disclosure	166,158	'	166,158	'	259,750
Level 1 [Member] | Other Postretirement Benefits, Individual Contracts, Type of Deferred Compensation [Domain]	'	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'	'
Other assets	88,273	'	88,273	'	86,184
Other liabilities	88,273	'	88,273	'	86,184
Level 1 [Member] | Available-for-sale Securities [Member] | U.S. Treasury, Agencies And Corporations [Member]	'	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'	'
Investments, Fair Value Disclosure	'	'	'	'	'
Level 1 [Member] | Derivatives [Member]	'	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'	'
Other assets	9,317	'	9,317	'	9,614
Other liabilities	8,747	'	8,747	'	8,643
Level 1 [Member] | Derivatives [Member] | Foreign Currency Exchange Contracts [Member]	'	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'	'
Other assets	9,317	'	9,317	'	9,614
Other liabilities	8,747	'	8,747	'	8,643
Level 2 [Member]	'	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'	'
Investments, Fair Value Disclosure	2,856,111	'	2,856,111	'	2,137,259
Trading account	55,419	'	55,419	'	34,559
Total assets	3,432,237	'	3,432,237	'	2,699,615
Securities sold, not yet purchased	'	'	'	'	'
Total liabilities	47,286	'	47,286	'	55,692
Level 2 [Member] | Mutual Funds And Other [Member]	'	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'	'
Investments, Fair Value Disclosure	5,474	'	5,474	'	20,453
Level 2 [Member] | Bank-owned life insurance [Member]	'	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'	'
Other noninterest-bearing investments	475,304	'	475,304	'	466,428
Level 2 [Member] | Private Equity [Member]	'	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'	'
Other noninterest-bearing investments	'	'	'	'	4,822
Level 2 [Member] | Available-for-sale Securities [Member] | U.S. Treasury, Agencies And Corporations [Member]	'	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'	'
Investments, Fair Value Disclosure	2,608,410	'	2,608,410	'	2,059,105
Level 2 [Member] | Available-for-sale Securities [Member] | Municipal Securities [Member]	'	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'	'
Investments, Fair Value Disclosure	178,433	'	178,433	'	55,602
Level 2 [Member] | Asset-Backed Securities [Member] | Trust Preferred - Banks And Insurance [Member]	'	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'	'
Investments, Fair Value Disclosure	63,033	'	63,033	'	'
Level 2 [Member] | Asset-Backed Securities [Member] | Other (Including ABS CDOs) [Member]	'	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'	'
Investments, Fair Value Disclosure	'	'	'	'	2,099
Level 2 [Member] | Asset-Backed Securities [Member] | Other [Member]	'	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'	'
Investments, Fair Value Disclosure	761	'	761	'	'
Level 2 [Member] | Derivatives [Member]	'	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'	'
Other assets	45,403	'	45,403	'	56,547
Other liabilities	47,286	'	47,286	'	55,692
Level 2 [Member] | Derivatives [Member] | Interest Rate Related And Other [Member]	'	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'	'
Other assets	271	'	271	'	1,100
Other liabilities	734	'	734	'	1,004
Level 2 [Member] | Derivatives [Member] | Interest Rate Swaps [Member]	'	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'	'
Other assets	45,132	'	45,132	'	55,447
Other liabilities	46,552	'	46,552	'	54,688
Level 3 [Member]	'	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'	'
Investments, Fair Value Disclosure	541,139	'	541,139	'	1,304,877
Total assets	636,942	'	636,942	'	1,396,139
Other liabilities	67	'	67	'	241
Total liabilities	67	'	67	'	4,303
Level 3 [Member] | Private Equity [Member]	'	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'	'
Other noninterest-bearing investments	83,885	'	83,885	'	82,410
Level 3 [Member] | Interest-Only-Strip [Member]	'	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'	'
Other assets	11,918	'	11,918	'	8,852
Level 3 [Member] | Available-for-sale Securities [Member] | Municipal Securities [Member]	'	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'	'
Investments, Fair Value Disclosure	9,928	'	9,928	'	10,662
Level 3 [Member] | Asset-Backed Securities [Member] | Trust Preferred - Banks And Insurance [Member]	'	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'	'
Investments, Fair Value Disclosure	525,470	'	525,470	'	1,238,820
Level 3 [Member] | Asset-Backed Securities [Member] | Trust Preferred - Real Estate Investment Trusts [Member]	'	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'	'
Investments, Fair Value Disclosure	'	'	'	'	22,996
Level 3 [Member] | Asset-Backed Securities [Member] | Auction Rate Securities [Member]	'	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'	'
Investments, Fair Value Disclosure	5,714	'	5,714	'	6,599
Level 3 [Member] | Asset-Backed Securities [Member] | Other (Including ABS CDOs) [Member]	'	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'	'
Investments, Fair Value Disclosure	'	'	'	'	25,800
Level 3 [Member] | Asset-Backed Securities [Member] | Other [Member]	'	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'	'
Investments, Fair Value Disclosure	27	'	27	'	'
Level 3 [Member] | Derivatives [Member]	'	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'	'
Other liabilities	'	'	'	'	4,062
Level 3 [Member] | Derivatives [Member] | Total Return Swap [Member]	'	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'	'
Other liabilities	'	'	'	'	4,062
Estimated Fair Value [Member]	'	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'	'
Investments, Fair Value Disclosure	3,563,408	'	3,563,408	'	3,701,886
Trading account	55,419	'	55,419	'	34,559
Total assets	4,332,927	'	4,332,927	'	4,451,302
Securities sold, not yet purchased	26,251	'	26,251	'	73,606
Other liabilities	67	'	67	'	241
Total liabilities	170,624	'	170,624	'	228,428
Estimated Fair Value [Member] | Mutual Funds And Other [Member]	'	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'	'
Investments, Fair Value Disclosure	171,632	'	171,632	'	280,203
Estimated Fair Value [Member] | Bank-owned life insurance [Member]	'	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'	'
Other noninterest-bearing investments	475,304	'	475,304	'	466,428
Estimated Fair Value [Member] | Private Equity [Member]	'	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'	'
Other noninterest-bearing investments	83,885	'	83,885	'	87,232
Estimated Fair Value [Member] | Interest-Only-Strip [Member]	'	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'	'
Other assets	11,918	'	11,918	'	8,852
Estimated Fair Value [Member] | Other Postretirement Benefits, Individual Contracts, Type of Deferred Compensation [Domain]	'	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'	'
Other assets	88,273	'	88,273	'	86,184
Other liabilities	88,273	'	88,273	'	86,184
Estimated Fair Value [Member] | Available-for-sale Securities [Member] | U.S. Treasury, Agencies And Corporations [Member]	'	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'	'
Investments, Fair Value Disclosure	2,608,410	'	2,608,410	'	2,059,105
Estimated Fair Value [Member] | Available-for-sale Securities [Member] | Municipal Securities [Member]	'	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'	'
Investments, Fair Value Disclosure	188,361	'	188,361	'	66,264
Estimated Fair Value [Member] | Asset-Backed Securities [Member] | Trust Preferred - Banks And Insurance [Member]	'	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'	'
Investments, Fair Value Disclosure	588,503	'	588,503	'	1,238,820
Estimated Fair Value [Member] | Asset-Backed Securities [Member] | Trust Preferred - Real Estate Investment Trusts [Member]	'	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'	'
Investments, Fair Value Disclosure	'	'	'	'	22,996
Estimated Fair Value [Member] | Asset-Backed Securities [Member] | Auction Rate Securities [Member]	'	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'	'
Investments, Fair Value Disclosure	5,714	'	5,714	'	6,599
Estimated Fair Value [Member] | Asset-Backed Securities [Member] | Other [Member]	'	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'	'
Investments, Fair Value Disclosure	788	'	788	'	27,899
Estimated Fair Value [Member] | Derivatives [Member]	'	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'	'
Other assets	54,720	'	54,720	'	66,161
Other liabilities	56,033	'	56,033	'	68,397
Estimated Fair Value [Member] | Derivatives [Member] | Interest Rate Related And Other [Member]	'	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'	'
Other assets	271	'	271	'	1,100
Other liabilities	734	'	734	'	1,004
Estimated Fair Value [Member] | Derivatives [Member] | Interest Rate Swaps [Member]	'	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'	'
Other assets	45,132	'	45,132	'	55,447
Other liabilities	46,552	'	46,552	'	54,688
Estimated Fair Value [Member] | Derivatives [Member] | Foreign Currency Exchange Contracts [Member]	'	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'	'
Other assets	9,317	'	9,317	'	9,614
Other liabilities	8,747	'	8,747	'	8,643
Estimated Fair Value [Member] | Derivatives [Member] | Total Return Swap [Member]	'	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'	'
Other liabilities	'	'	'	'	$4,062

Fair_Value_Schedule_Of_Key_Mod

Fair Value (Schedule Of Key Model Inputs And Assumptions Used To Fair Value Certain Asset-Backed Securities) (Details)	9 Months Ended	12 Months Ended
	Sep. 30, 2014	Dec. 31, 2013
Trust Preferred - Predominantly Insurance [Member]	'	'
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]	'	'
Assumption for Fair Value of Assets or Liabilities that relate to Transferor's Continuing Involvement, Prepayment Speed	'	5.00%
Trust Preferred Real Estate Investment Trusts [Member]	'	'
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]	'	'
Assumption for Fair Value of Assets or Liabilities that relate to Transferor's Continuing Involvement, Prepayment Speed	'	0.00%
Asset-Backed Securities [Member] | Trust Preferred - Predominantly Banks [Member]	'	'
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]	'	'
Asset-backed securities, Loss severity	100.00%	100.00%
Asset-Backed Securities [Member] | Trust Preferred - Predominantly Insurance [Member]	'	'
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]	'	'
Asset-backed securities, Loss severity	'	100.00%
Minimum [Member] | Asset-Backed Securities [Member] | Trust Preferred Securities - Real Estate Investment Trusts [Member]	'	'
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]	'	'
Asset-backed securities, Loss severity	'	60.00%
Maximum [Member] | Asset-Backed Securities [Member] | Trust Preferred Securities - Real Estate Investment Trusts [Member]	'	'
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]	'	'
Asset-backed securities, Loss severity	'	100.00%
Constant Default Rate Year 1 [Member] | Minimum [Member] | Trust Preferred - Predominantly Banks [Member]	'	'
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]	'	'
Asset-backed securities, Constant default rate	0.30%	0.30%
Constant Default Rate Year 1 [Member] | Minimum [Member] | Trust Preferred - Predominantly Insurance [Member]	'	'
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]	'	'
Asset-backed securities, Constant default rate	'	0.38%
Constant Default Rate Year 1 [Member] | Minimum [Member] | Trust Preferred Real Estate Investment Trusts [Member]	'	'
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]	'	'
Asset-backed securities, Constant default rate	'	4.10%
Constant Default Rate Year 1 [Member] | Maximum [Member] | Trust Preferred - Predominantly Banks [Member]	'	'
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]	'	'
Asset-backed securities, Constant default rate	2.47%	1.94%
Constant Default Rate Year 1 [Member] | Maximum [Member] | Trust Preferred - Predominantly Insurance [Member]	'	'
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]	'	'
Asset-backed securities, Constant default rate	'	1.03%
Constant Default Rate Year 1 [Member] | Maximum [Member] | Trust Preferred Real Estate Investment Trusts [Member]	'	'
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]	'	'
Asset-backed securities, Constant default rate	'	10.60%
Constant Default Rate Year 2 to 3 [Member] | Minimum [Member] | Trust Preferred Real Estate Investment Trusts [Member]	'	'
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]	'	'
Asset-backed securities, Constant default rate	'	4.60%
Constant Default Rate Year 2 to 3 [Member] | Maximum [Member] | Trust Preferred Real Estate Investment Trusts [Member]	'	'
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]	'	'
Asset-backed securities, Constant default rate	'	5.50%
Constant Default Rate Year 2 to 5 [Member] | Minimum [Member] | Trust Preferred - Predominantly Banks [Member]	'	'
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]	'	'
Asset-backed securities, Constant default rate	0.48%	0.49%
Constant Default Rate Year 2 to 5 [Member] | Minimum [Member] | Trust Preferred - Predominantly Insurance [Member]	'	'
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]	'	'
Asset-backed securities, Constant default rate	'	0.53%
Constant Default Rate Year 2 to 5 [Member] | Maximum [Member] | Trust Preferred - Predominantly Banks [Member]	'	'
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]	'	'
Asset-backed securities, Constant default rate	0.74%	1.14%
Constant Default Rate Year 2 to 5 [Member] | Maximum [Member] | Trust Preferred - Predominantly Insurance [Member]	'	'
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]	'	'
Asset-backed securities, Constant default rate	'	0.89%
Constant Default Rate Year 4 to 6 [Member] | Trust Preferred Real Estate Investment Trusts [Member]	'	'
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]	'	'
Asset-backed securities, Constant default rate	'	1.00%
Constant Default Rate Year 6 to Maturity [Member] | Minimum [Member] | Trust Preferred - Predominantly Banks [Member]	'	'
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]	'	'
Asset-backed securities, Constant default rate	0.60%	0.58%
Constant Default Rate Year 6 to Maturity [Member] | Minimum [Member] | Trust Preferred - Predominantly Insurance [Member]	'	'
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]	'	'
Asset-backed securities, Constant default rate	'	0.50%
Constant Default Rate Year 6 to Maturity [Member] | Maximum [Member] | Trust Preferred - Predominantly Banks [Member]	'	'
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]	'	'
Asset-backed securities, Constant default rate	0.65%	0.65%
Constant Default Rate Year 6 to Maturity [Member] | Maximum [Member] | Trust Preferred - Predominantly Insurance [Member]	'	'
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]	'	'
Asset-backed securities, Constant default rate	'	0.55%
Constant Default Rate Until 2016 [Member] | Minimum [Member] | Trust Preferred - Predominantly Banks [Member]	'	'
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]	'	'
Assumption for Fair Value of Assets or Liabilities that relate to Transferor's Continuing Involvement, Prepayment Speed	4.00%	5.50%
Constant Default Rate Until 2016 [Member] | Maximum [Member] | Trust Preferred - Predominantly Banks [Member]	'	'
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]	'	'
Assumption for Fair Value of Assets or Liabilities that relate to Transferor's Continuing Involvement, Prepayment Speed	26.00%	20.73%
Constant Default Rate 2016 to Maturity [Member] | Trust Preferred - Predominantly Banks [Member]	'	'
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]	'	'
Assumption for Fair Value of Assets or Liabilities that relate to Transferor's Continuing Involvement, Prepayment Speed	3.00%	3.00%

Fair_Value_Schedule_Of_Assets_1

Fair Value (Schedule Of Assets And Liabilities Measured At Fair Value By Class On A Recurring Basis Using Level 3 Inputs) (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
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'
Total net gains (losses) included in, Other noninterest expense	$66,769	$64,671	$206,438	$220,884
Municipal Securities [Member]	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'
Fair value of assets, Beginning balance	10,038	13,544	10,662	16,551
Total net gains (losses) included in, Accretion of purchase discount on securities available-for-sale	9	10	27	31
Total net gains (losses) included in, Fixed income securities gains (losses), net	2	2	18	38
Total net gains (losses) included in, Other comprehensive income (loss)	4	64	-178	986
Total net gains (losses) included in, Sales	'	'	'	'
Total net gains (losses) included in, Redemptions and paydowns	-125	-100	-601	4,086
Fair value of assets, Ending balance	9,928	13,520	9,928	13,520
Trust Preferred - Banks And Insurance [Member]	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'
Fair value of assets, Beginning balance	685,805	1,030,293	1,238,820	949,271
Total net gains (losses) included in, Accretion of purchase discount on securities available-for-sale	480	783	1,833	2,395
Total net gains (losses) included in, Fixed income securities gains (losses), net	-13,956	1,494	9,009	3,530
Total net gains (losses) included in, Net impairment losses on investment securities	'	-7,787	'	-21,548
Total net gains (losses) included in, Other comprehensive income (loss)	45,521	-3,934	146,861	127,028
Total net gains (losses) included in, Sales	155,869	'	702,257	7,015
Total net gains (losses) included in, Redemptions and paydowns	-36,511	-18,954	-99,603	51,766
Fair value of assets, Ending balance	525,470	1,001,895	525,470	1,001,895
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3	'	'	69,193	'
Trust Preferred Securities - Real Estate Investment Trusts [Member]	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'
Fair value of assets, Beginning balance	0	18,499	22,996	16,403
Total net gains (losses) included in, Accretion of purchase discount on securities available-for-sale	'	64	'	190
Total net gains (losses) included in, Fixed income securities gains (losses), net	'	'	1,399	'
Total net gains (losses) included in, Net impairment losses on investment securities	'	-1,112	'	-1,282
Total net gains (losses) included in, Other comprehensive income (loss)	'	2,067	'	4,207
Total net gains (losses) included in, Sales	'	'	24,395	'
Total net gains (losses) included in, Redemptions and paydowns	'	'	'	'
Fair value of assets, Ending balance	0	19,518	0	19,518
Auction Rate Securities [Member]	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'
Fair value of assets, Beginning balance	6,578	6,554	6,599	6,515
Total net gains (losses) included in, Accretion of purchase discount on securities available-for-sale	1	1	3	2
Total net gains (losses) included in, Fixed income securities gains (losses), net	37	'	37	'
Total net gains (losses) included in, Other comprehensive income (loss)	48	70	25	108
Total net gains (losses) included in, Sales	950	'	950	'
Total net gains (losses) included in, Redemptions and paydowns	'	'	'	'
Fair value of assets, Ending balance	5,714	6,625	5,714	6,625
Other Asset-Backed [Member]	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'
Fair value of assets, Beginning balance	28	17,324	25,800	15,160
Total net gains (losses) included in, Accretion of purchase discount on securities available-for-sale	'	50	'	64
Total net gains (losses) included in, Fixed income securities gains (losses), net	'	10	10,917	54
Total net gains (losses) included in, Net impairment losses on investment securities	'	-168	'	-168
Total net gains (losses) included in, Other comprehensive income (loss)	'	-476	-15	4,147
Total net gains (losses) included in, Sales	1	'	36,670	'
Total net gains (losses) included in, Redemptions and paydowns	'	-3,193	-5	5,710
Fair value of assets, Ending balance	27	13,547	27	13,547
Private Equity Investments [Member]	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'
Fair value of assets, Beginning balance	82,256	75,517	82,410	64,223
Total net gains (losses) included in, Dividends and other investment income	1,451	306	-1,296	5,455
Total net gains (losses) included in, Equity securities gains, net	-3,684	'	-3,100	3,739
Total net gains (losses) included in, Purchases	4,438	2,064	12,898	5,905
Total net gains (losses) included in, Sales	-476	-249	-1,315	1,369
Total net gains (losses) included in, Redemptions and paydowns	-100	-82	-5,712	397
Fair value of assets, Ending balance	83,885	77,556	83,885	77,556
Servicing Contracts [Member]	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'
Fair value of liabilities, Beginning balance	11,461	8,338	8,852	-8,334
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Noninterest Income	139	578	665	1,081
Total net gains (losses) included in, Purchases	531	'	2,987	'
Total net gains (losses) included in, Redemptions and paydowns	-213	-341	-586	840
Fair value of liabilities, Ending balance	11,918	8,575	11,918	8,575
Derivatives [Member]	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'
Fair value of liabilities, Beginning balance	-132	-5,118	-4,303	5,251
Derivative, Gain (Loss) on Derivative, Net	'	-5,342	-7,894	-16,350
Total net gains (losses) included in, Other noninterest expense	65	92	174	-73
Total net gains (losses) included, in Redemptions and paydowns, Liabilities	'	-5,932	-11,956	-17,238
Fair value of liabilities, Ending balance	($67)	($4,436)	($67)	($4,436)

Fair_Value_Schedule_Of_Realize

Fair Value (Schedule Of Realized Gains (Losses) Using Level 3 Inputs) (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
Dividends and Other Investment Income (Loss) [Member]	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'
Realized gains (losses) from Level 3 inputs	$0	$0	$34	($45)
Fixed Income Securities Gains (Losses), Net [Member]	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'
Realized gains (losses) from Level 3 inputs	-13,917	1,506	21,380	3,622
US States and Political Subdivisions Debt Securities [Member]	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'
Fair Value Assets Measured On Recurring Basis And Gain Loss Included In Fixed Income Securities Gains (Losses), Net	2	2	18	38
Fair Value, Assets Measured On Recurring Basis, And Gain (Loss) Included In Accretion Of Purchase Discount On Securities Available-For-Sale	9	10	27	31
Trust Preferred Securities Real Estate Investment Trusts [Member]	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'
Fair Value Assets Measured On Recurring Basis And Gain Loss Included In Fixed Income Securities Gains (Losses), Net	'	'	1,399	'
Fair Value, Assets Measured On Recurring Basis, And Gain (Loss) Included In Accretion Of Purchase Discount On Securities Available-For-Sale	'	$64	'	$190

Fair_Value_Summary_of_Quantita

Fair Value Summary of Quantitative Information Relating to the Principal Valuation Techniques and Significant Unobservable Inputs for Level 3 (Details) (USD $)	9 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Trust Preferred - Real Estate Investment Trusts [Member]	'	'
Summary of Quantitative Information Relating to the Principal Valuation Techniques and Significant Unobservable Inputs for Level 3 [Line Items]	'	'
Assumption for Fair Value of Assets or Liabilities that relate to Transferor's Continuing Involvement, Prepayment Speed	'	0.00%
Trust Preferred - Real Estate Investment Trusts [Member] | Constant Default Rate Year 4 to 6 [Member]	'	'
Summary of Quantitative Information Relating to the Principal Valuation Techniques and Significant Unobservable Inputs for Level 3 [Line Items]	'	'
Assumption For Fair Value Of Assets Or Liabilities Constant Default Rate	'	1.00%
Trust Preferred - Real Estate Investment Trusts [Member] | Constant Default Rate Years 7 to Maturity [Member]	'	'
Summary of Quantitative Information Relating to the Principal Valuation Techniques and Significant Unobservable Inputs for Level 3 [Line Items]	'	'
Assumption For Fair Value Of Assets Or Liabilities Constant Default Rate	'	0.50%
Trust Preferred - Predominantly Insurance [Member]	'	'
Summary of Quantitative Information Relating to the Principal Valuation Techniques and Significant Unobservable Inputs for Level 3 [Line Items]	'	'
Assumption for Fair Value of Assets or Liabilities that relate to Transferor's Continuing Involvement, Prepayment Speed	'	5.00%
Trust Preferred - Predominantly Banks [Member] | Constant Default Rate 2016 to Maturity [Member]	'	'
Summary of Quantitative Information Relating to the Principal Valuation Techniques and Significant Unobservable Inputs for Level 3 [Line Items]	'	'
Assumption for Fair Value of Assets or Liabilities that relate to Transferor's Continuing Involvement, Prepayment Speed	3.00%	3.00%
Minimum [Member] | Other Predominantly ABS CODs [Member]	'	'
Summary of Quantitative Information Relating to the Principal Valuation Techniques and Significant Unobservable Inputs for Level 3 [Line Items]	'	'
Assumption For Fair Value Of Assets Or Liabilities Constant Default Rate	'	0.01%
Discount rate range of LIBOR utilized for fair value purposes	'	9.00%
Minimum [Member] | Trust Preferred - Real Estate Investment Trusts [Member]	'	'
Summary of Quantitative Information Relating to the Principal Valuation Techniques and Significant Unobservable Inputs for Level 3 [Line Items]	'	'
Discount rate range of LIBOR utilized for fair value purposes	'	5.50%
Minimum [Member] | Trust Preferred - Real Estate Investment Trusts [Member] | Constant Default Rate Year 1 [Member]	'	'
Summary of Quantitative Information Relating to the Principal Valuation Techniques and Significant Unobservable Inputs for Level 3 [Line Items]	'	'
Assumption For Fair Value Of Assets Or Liabilities Constant Default Rate	'	4.10%
Minimum [Member] | Trust Preferred - Real Estate Investment Trusts [Member] | Constant Default Rate Year 2 to 3 [Member]	'	'
Summary of Quantitative Information Relating to the Principal Valuation Techniques and Significant Unobservable Inputs for Level 3 [Line Items]	'	'
Assumption For Fair Value Of Assets Or Liabilities Constant Default Rate	'	4.60%
Minimum [Member] | Trust Preferred - Individual Banks [Member]	'	'
Summary of Quantitative Information Relating to the Principal Valuation Techniques and Significant Unobservable Inputs for Level 3 [Line Items]	'	'
Significant Unobservable Inputs, Yield Rate	'	6.60%
Significant Unobservable Inputs, Price Rate	'	81.25%
Minimum [Member] | Trust Preferred - Predominantly Insurance [Member]	'	'
Summary of Quantitative Information Relating to the Principal Valuation Techniques and Significant Unobservable Inputs for Level 3 [Line Items]	'	'
Significant Unobservable Inputs, Loss Given Deferral Rate	'	2.18%
Discount rate range of LIBOR utilized for fair value purposes	'	3.72%
Minimum [Member] | Trust Preferred - Predominantly Insurance [Member] | Constant Default Rate Year 1 [Member]	'	'
Summary of Quantitative Information Relating to the Principal Valuation Techniques and Significant Unobservable Inputs for Level 3 [Line Items]	'	'
Assumption For Fair Value Of Assets Or Liabilities Constant Default Rate	'	0.38%
Minimum [Member] | Trust Preferred - Predominantly Insurance [Member] | Constant Default Rate Year 2 to 5 [Member]	'	'
Summary of Quantitative Information Relating to the Principal Valuation Techniques and Significant Unobservable Inputs for Level 3 [Line Items]	'	'
Assumption For Fair Value Of Assets Or Liabilities Constant Default Rate	'	0.53%
Minimum [Member] | Trust Preferred - Predominantly Insurance [Member] | Constant Default Rate Year 6 to Maturity [Member]	'	'
Summary of Quantitative Information Relating to the Principal Valuation Techniques and Significant Unobservable Inputs for Level 3 [Line Items]	'	'
Assumption For Fair Value Of Assets Or Liabilities Constant Default Rate	'	0.50%
Minimum [Member] | Trust Preferred - Predominantly Banks [Member]	'	'
Summary of Quantitative Information Relating to the Principal Valuation Techniques and Significant Unobservable Inputs for Level 3 [Line Items]	'	'
Significant Unobservable Inputs, Loss Given Deferral Rate	35.43%	14.39%
Discount rate range of LIBOR utilized for fair value purposes	4.50%	5.60%
Minimum [Member] | Trust Preferred - Predominantly Banks [Member] | Constant Default Rate Until 2016 [Member]	'	'
Summary of Quantitative Information Relating to the Principal Valuation Techniques and Significant Unobservable Inputs for Level 3 [Line Items]	'	'
Assumption for Fair Value of Assets or Liabilities that relate to Transferor's Continuing Involvement, Prepayment Speed	4.00%	5.50%
Minimum [Member] | Trust Preferred - Predominantly Banks [Member] | Constant Default Rate Year 1 [Member]	'	'
Summary of Quantitative Information Relating to the Principal Valuation Techniques and Significant Unobservable Inputs for Level 3 [Line Items]	'	'
Assumption For Fair Value Of Assets Or Liabilities Constant Default Rate	0.30%	0.30%
Minimum [Member] | Trust Preferred - Predominantly Banks [Member] | Constant Default Rate Year 2 to 5 [Member]	'	'
Summary of Quantitative Information Relating to the Principal Valuation Techniques and Significant Unobservable Inputs for Level 3 [Line Items]	'	'
Assumption For Fair Value Of Assets Or Liabilities Constant Default Rate	0.48%	0.49%
Minimum [Member] | Trust Preferred - Predominantly Banks [Member] | Constant Default Rate Year 6 to Maturity [Member]	'	'
Summary of Quantitative Information Relating to the Principal Valuation Techniques and Significant Unobservable Inputs for Level 3 [Line Items]	'	'
Assumption For Fair Value Of Assets Or Liabilities Constant Default Rate	0.60%	0.58%
Maximum [Member] | Other Predominantly ABS CODs [Member]	'	'
Summary of Quantitative Information Relating to the Principal Valuation Techniques and Significant Unobservable Inputs for Level 3 [Line Items]	'	'
Assumption For Fair Value Of Assets Or Liabilities Constant Default Rate	'	100.00%
Discount rate range of LIBOR utilized for fair value purposes	'	22.00%
Maximum [Member] | Trust Preferred - Real Estate Investment Trusts [Member]	'	'
Summary of Quantitative Information Relating to the Principal Valuation Techniques and Significant Unobservable Inputs for Level 3 [Line Items]	'	'
Discount rate range of LIBOR utilized for fair value purposes	'	15.00%
Maximum [Member] | Trust Preferred - Real Estate Investment Trusts [Member] | Constant Default Rate Year 1 [Member]	'	'
Summary of Quantitative Information Relating to the Principal Valuation Techniques and Significant Unobservable Inputs for Level 3 [Line Items]	'	'
Assumption For Fair Value Of Assets Or Liabilities Constant Default Rate	'	10.60%
Maximum [Member] | Trust Preferred - Real Estate Investment Trusts [Member] | Constant Default Rate Year 2 to 3 [Member]	'	'
Summary of Quantitative Information Relating to the Principal Valuation Techniques and Significant Unobservable Inputs for Level 3 [Line Items]	'	'
Assumption For Fair Value Of Assets Or Liabilities Constant Default Rate	'	5.50%
Maximum [Member] | Trust Preferred - Individual Banks [Member]	'	'
Summary of Quantitative Information Relating to the Principal Valuation Techniques and Significant Unobservable Inputs for Level 3 [Line Items]	'	'
Significant Unobservable Inputs, Yield Rate	'	7.80%
Significant Unobservable Inputs, Price Rate	'	109.60%
Maximum [Member] | Trust Preferred - Predominantly Insurance [Member]	'	'
Summary of Quantitative Information Relating to the Principal Valuation Techniques and Significant Unobservable Inputs for Level 3 [Line Items]	'	'
Significant Unobservable Inputs, Loss Given Deferral Rate	'	30.13%
Discount rate range of LIBOR utilized for fair value purposes	'	6.49%
Maximum [Member] | Trust Preferred - Predominantly Insurance [Member] | Constant Default Rate Year 1 [Member]	'	'
Summary of Quantitative Information Relating to the Principal Valuation Techniques and Significant Unobservable Inputs for Level 3 [Line Items]	'	'
Assumption For Fair Value Of Assets Or Liabilities Constant Default Rate	'	1.03%
Maximum [Member] | Trust Preferred - Predominantly Insurance [Member] | Constant Default Rate Year 2 to 5 [Member]	'	'
Summary of Quantitative Information Relating to the Principal Valuation Techniques and Significant Unobservable Inputs for Level 3 [Line Items]	'	'
Assumption For Fair Value Of Assets Or Liabilities Constant Default Rate	'	0.89%
Maximum [Member] | Trust Preferred - Predominantly Insurance [Member] | Constant Default Rate Year 6 to Maturity [Member]	'	'
Summary of Quantitative Information Relating to the Principal Valuation Techniques and Significant Unobservable Inputs for Level 3 [Line Items]	'	'
Assumption For Fair Value Of Assets Or Liabilities Constant Default Rate	'	0.55%
Maximum [Member] | Trust Preferred - Predominantly Banks [Member]	'	'
Summary of Quantitative Information Relating to the Principal Valuation Techniques and Significant Unobservable Inputs for Level 3 [Line Items]	'	'
Significant Unobservable Inputs, Loss Given Deferral Rate	100.00%	100.00%
Discount rate range of LIBOR utilized for fair value purposes	5.10%	7.70%
Maximum [Member] | Trust Preferred - Predominantly Banks [Member] | Constant Default Rate Until 2016 [Member]	'	'
Summary of Quantitative Information Relating to the Principal Valuation Techniques and Significant Unobservable Inputs for Level 3 [Line Items]	'	'
Assumption for Fair Value of Assets or Liabilities that relate to Transferor's Continuing Involvement, Prepayment Speed	26.00%	20.73%
Maximum [Member] | Trust Preferred - Predominantly Banks [Member] | Constant Default Rate Year 1 [Member]	'	'
Summary of Quantitative Information Relating to the Principal Valuation Techniques and Significant Unobservable Inputs for Level 3 [Line Items]	'	'
Assumption For Fair Value Of Assets Or Liabilities Constant Default Rate	2.47%	1.94%
Maximum [Member] | Trust Preferred - Predominantly Banks [Member] | Constant Default Rate Year 2 to 5 [Member]	'	'
Summary of Quantitative Information Relating to the Principal Valuation Techniques and Significant Unobservable Inputs for Level 3 [Line Items]	'	'
Assumption For Fair Value Of Assets Or Liabilities Constant Default Rate	0.74%	1.14%
Maximum [Member] | Trust Preferred - Predominantly Banks [Member] | Constant Default Rate Year 6 to Maturity [Member]	'	'
Summary of Quantitative Information Relating to the Principal Valuation Techniques and Significant Unobservable Inputs for Level 3 [Line Items]	'	'
Assumption For Fair Value Of Assets Or Liabilities Constant Default Rate	0.65%	0.65%
Asset-Backed Securities [Member] | Trust Preferred - Predominantly Insurance [Member]	'	'
Summary of Quantitative Information Relating to the Principal Valuation Techniques and Significant Unobservable Inputs for Level 3 [Line Items]	'	'
Assumption for Fair Value of Assets or Liabilities that relate to Transferor's Continuing Involvement, Static Pool Losses	'	100.00%
Asset-Backed Securities [Member] | Trust Preferred - Predominantly Banks [Member]	'	'
Summary of Quantitative Information Relating to the Principal Valuation Techniques and Significant Unobservable Inputs for Level 3 [Line Items]	'	'
Assumption for Fair Value of Assets or Liabilities that relate to Transferor's Continuing Involvement, Static Pool Losses	100.00%	100.00%
Asset-Backed Securities [Member] | Minimum [Member] | Other Predominantly ABS CODs [Member]	'	'
Summary of Quantitative Information Relating to the Principal Valuation Techniques and Significant Unobservable Inputs for Level 3 [Line Items]	'	'
Assumption for Fair Value of Assets or Liabilities that relate to Transferor's Continuing Involvement, Static Pool Losses	'	70.00%
Asset-Backed Securities [Member] | Minimum [Member] | Trust Preferred Securities - Real Estate Investment Trusts [Member]	'	'
Summary of Quantitative Information Relating to the Principal Valuation Techniques and Significant Unobservable Inputs for Level 3 [Line Items]	'	'
Assumption for Fair Value of Assets or Liabilities that relate to Transferor's Continuing Involvement, Static Pool Losses	'	60.00%
Asset-Backed Securities [Member] | Maximum [Member] | Other Predominantly ABS CODs [Member]	'	'
Summary of Quantitative Information Relating to the Principal Valuation Techniques and Significant Unobservable Inputs for Level 3 [Line Items]	'	'
Assumption for Fair Value of Assets or Liabilities that relate to Transferor's Continuing Involvement, Static Pool Losses	'	92.00%
Asset-Backed Securities [Member] | Maximum [Member] | Trust Preferred Securities - Real Estate Investment Trusts [Member]	'	'
Summary of Quantitative Information Relating to the Principal Valuation Techniques and Significant Unobservable Inputs for Level 3 [Line Items]	'	'
Assumption for Fair Value of Assets or Liabilities that relate to Transferor's Continuing Involvement, Static Pool Losses	'	100.00%
Level 3 [Member]	'	'
Summary of Quantitative Information Relating to the Principal Valuation Techniques and Significant Unobservable Inputs for Level 3 [Line Items]	'	'
Investments, Fair Value Disclosure	541,139	1,304,877
Level 3 [Member] | Other Predominantly ABS CODs [Member] | Asset-Backed Securities [Member]	'	'
Summary of Quantitative Information Relating to the Principal Valuation Techniques and Significant Unobservable Inputs for Level 3 [Line Items]	'	'
Investments, Fair Value Disclosure	'	25,800
Level 3 [Member] | Trust Preferred - Predominantly Insurance [Member] | Asset-Backed Securities [Member]	'	'
Summary of Quantitative Information Relating to the Principal Valuation Techniques and Significant Unobservable Inputs for Level 3 [Line Items]	'	'
Investments, Fair Value Disclosure	'	346,390
Level 3 [Member] | Trust Preferred - Predominantly Banks [Member] | Asset-Backed Securities [Member]	'	'
Summary of Quantitative Information Relating to the Principal Valuation Techniques and Significant Unobservable Inputs for Level 3 [Line Items]	'	'
Investments, Fair Value Disclosure	584,104	921,819
Level 3 [Member] | Trust Preferred - Individual Banks [Member] | Asset-Backed Securities [Member]	'	'
Summary of Quantitative Information Relating to the Principal Valuation Techniques and Significant Unobservable Inputs for Level 3 [Line Items]	'	'
Investments, Fair Value Disclosure	'	22,324
Level 3 [Member] | Trust Preferred - Real Estate Investment Trusts [Member] | Asset-Backed Securities [Member]	'	'
Summary of Quantitative Information Relating to the Principal Valuation Techniques and Significant Unobservable Inputs for Level 3 [Line Items]	'	'
Investments, Fair Value Disclosure	'	22,996
Level 3 [Member] | Other Credit Derivatives [Member] | Asset-Backed Securities [Member]	'	'
Summary of Quantitative Information Relating to the Principal Valuation Techniques and Significant Unobservable Inputs for Level 3 [Line Items]	'	'
Investments, Fair Value Disclosure	27	'

Fair_Value_Schedule_Of_Assets_2

Fair Value (Schedule Of Assets With Fair Value Changes On Nonrecurring Basis) (Details) (USD $)

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

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, 2013

Sep. 30, 2014

Sep. 30, 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

HTM Securities Adjusted For OTTI [Member]

HTM Securities Adjusted For OTTI [Member]

HTM Securities Adjusted For OTTI [Member]

HTM Securities Adjusted For OTTI [Member]

Impaired Loans [Member]

Impaired Loans [Member]

Impaired Loans [Member]

Impaired Loans [Member]

Private Equity Investments [Member]

Private Equity Investments [Member]

Private Equity Investments [Member]

Private Equity Investments [Member]

Other Real Estate Owned [Member]

Other Real Estate Owned [Member]

Other Real Estate Owned [Member]

Other Real Estate Owned [Member]

Level 1 [Member]

Level 1 [Member]

Level 1 [Member]

Level 1 [Member]

Level 1 [Member]

Level 1 [Member]

Level 1 [Member]

Level 1 [Member]

Level 1 [Member]

Level 1 [Member]

Level 2 [Member]

Level 2 [Member]

Level 2 [Member]

Level 2 [Member]

Level 2 [Member]

Level 2 [Member]

Level 2 [Member]

Level 2 [Member]

Level 2 [Member]

Level 2 [Member]

Level 3 [Member]

Level 3 [Member]

Level 3 [Member]

Level 3 [Member]

Level 3 [Member]

Level 3 [Member]

Level 3 [Member]

Level 3 [Member]

Level 3 [Member]

Level 3 [Member]

Estimated Fair Value [Member]

Estimated Fair Value [Member]

Estimated Fair Value [Member]

Estimated Fair Value [Member]

Estimated Fair Value [Member]

Estimated Fair Value [Member]

Estimated Fair Value [Member]

Estimated Fair Value [Member]

Estimated Fair Value [Member]

Estimated Fair Value [Member]

HTM Securities Adjusted For OTTI [Member]

HTM Securities Adjusted For OTTI [Member]

Impaired Loans [Member]

Impaired Loans [Member]

Private Equity Investments [Member]

Private Equity Investments [Member]

Other Real Estate Owned [Member]

Other Real Estate Owned [Member]

HTM Securities Adjusted For OTTI [Member]

HTM Securities Adjusted For OTTI [Member]

Impaired Loans [Member]

Impaired Loans [Member]

Private Equity Investments [Member]

Private Equity Investments [Member]

Other Real Estate Owned [Member]

Other Real Estate Owned [Member]

HTM Securities Adjusted For OTTI [Member]

HTM Securities Adjusted For OTTI [Member]

Impaired Loans [Member]

Impaired Loans [Member]

Private Equity Investments [Member]

Private Equity Investments [Member]

Other Real Estate Owned [Member]

Other Real Estate Owned [Member]

HTM Securities Adjusted For OTTI [Member]

HTM Securities Adjusted For OTTI [Member]

Impaired Loans [Member]

Impaired Loans [Member]

Private Equity Investments [Member]

Private Equity Investments [Member]

Other Real Estate Owned [Member]

Other Real Estate Owned [Member]

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

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'

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'

'

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'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Principal amount of other real estate owned property sold

'

'

$30,700,000

$61,100,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

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'

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'

'

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'

'

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Fair value of assets measured on nonrecurring basis

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0

0

0

0

0

0

0

0

0

0

33,842,000

36,449,000

0

0

26,444,000

11,765,000

0

0

7,398,000

24,684,000

3,419,000

21,753,000

0

8,483,000

0

0

3,419,000

13,270,000

0

0

37,261,000

58,202,000

0

8,483,000

26,444,000

11,765,000

3,419,000

13,270,000

7,398,000

24,684,000

Gains (losses) from fair value changes

($4,242,000)

($4,610,000)

($9,827,000)

($14,337,000)

$0

$0

$0

($403,000)

($815,000)

($35,000)

($3,097,000)

($1,463,000)

($339,000)

($2,826,000)

($471,000)

($4,254,000)

($3,088,000)

($1,749,000)

($6,259,000)

($8,217,000)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

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Fair_Value_Schedule_Of_Carryin

Fair Value (Schedule Of Carrying Values And Estimated Fair Values Of Financial Instruments) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Fair Value, Estimate Not Practicable, Financial Statement Captions [Line Items]	'	'
Held-to-maturity, fair value	$642,529	$609,547
Time deposits	2,441,756	2,593,038
Long-term debt (less fair value hedges)	1,113,677	2,273,575
Carrying Value [Member]	'	'
Fair Value, Estimate Not Practicable, Financial Statement Captions [Line Items]	'	'
Held-to-maturity, fair value	609,758	588,981
Loans and leases (including loans held for sale), net of allowance	39,238,657	38,468,402
Time deposits	2,441,756	2,593,038
Foreign deposits	310,264	1,980,161
Long-term debt (less fair value hedges)	1,111,686	2,269,762
Estimated Fair Value [Member]	'	'
Fair Value, Estimate Not Practicable, Financial Statement Captions [Line Items]	'	'
Held-to-maturity, fair value	642,529	609,547
Loans and leases (including loans held for sale), net of allowance	39,148,605	38,088,242
Time deposits	2,444,415	2,602,955
Foreign deposits	310,344	1,979,805
Long-term debt (less fair value hedges)	$1,204,079	$2,423,643

Commitments_Guarantees_And_Con2

Commitments, Guarantees, And Contingent Liabilities (Narrative) (Details) (USD $)	Sep. 30, 2014
In Millions, unless otherwise specified
Guarantees, Commitments And Contingencies [Abstract]	'
Letters of credit, accrued liability	$82.50
Reserve for unfunded lending commitments	79.4
Deferred commitment fees	3.1
Guarantee of trust preferred securities issued by affiliated trusts	15
Commitments for Private Equity and Other Noninterest-bearing Investments	23
Range of possible loss, minimum	0
Range of possible loss, maximum	$50

Commitments_Guarantees_And_Con3

Commitments, Guarantees, And Contingent Liabilities (Schedule Of Guarantees Issued) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Liabilities for Guarantees on Long-Duration Contracts [Line Items]	'	'
Commitments To Extend Credit	$16,600,064	$16,174,326
Commercial Letters Of Credit	33,819	80,218
Total Unfunded Lending Commitments	17,545,799	17,193,840
Financial [Member]	'	'
Liabilities for Guarantees on Long-Duration Contracts [Line Items]	'	'
Standby letters of credit	721,045	779,811
Performance [Member]	'	'
Liabilities for Guarantees on Long-Duration Contracts [Line Items]	'	'
Standby letters of credit	$190,871	$159,485

Retirement_Plans_Schedule_Of_N

Retirement Plans (Schedule Of Net Periodic Benefit Cost (Credit) For Pension And Postretirement Plans) (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
Pension Benefits [Member]	'	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'	'
Service cost	$0	$0	$0	$0
Interest cost	1,869	1,721	5,608	5,164
Expected return on plan assets	-3,326	-3,027	-9,979	-9,082
Amortization of net actuarial (gain) loss	735	2,033	2,206	6,099
Net periodic benefit cost (credit)	-722	727	-2,165	2,181
Supplemental Retirement Benefits [Member]	'	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'	'
Service cost	0	0	0	0
Interest cost	113	101	340	303
Amortization of prior service cost (credit)	13	31	38	93
Amortization of net actuarial (gain) loss	5	17	14	52
Net periodic benefit cost (credit)	131	149	392	448
Postretirement Benefits [Member]	'	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'	'
Service cost	8	8	23	24
Interest cost	12	10	35	31
Amortization of prior service cost (credit)	0	-37	0	-113
Amortization of net actuarial (gain) loss	-18	-19	-53	-56
Net periodic benefit cost (credit)	$2	($38)	$5	($114)

Operating_Segment_Information_1

Operating Segment Information (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
	Banks		Banks
Segment Reporting Information [Line Items]	'	'	'	'
Net interest income	$416,818,000	$415,521,000	$1,249,566,000	$1,264,293,000
Provision for loan losses	-54,643,000	-5,573,000	-109,669,000	-56,598,000
Net interest income after provision for loan losses	471,461,000	421,094,000	1,359,235,000	1,320,891,000
Net impairment losses on investment securities	0	-10,470,000	-27,000	-46,873,000
Other noninterest income	2,627,000	5,243,000	5,865,000	15,942,000
Noninterest expense	438,536,000	370,663,000	1,242,626,000	1,219,689,000
Income before income taxes	148,997,000	172,621,000	495,850,000	469,759,000
Income Tax Expense (Benefit)	53,109,000	61,107,000	179,202,000	164,832,000
Net income	95,888,000	111,514,000	316,648,000	304,927,000
Number of community/regional banks operating in distinct geographical areas	8	'	8	'
Zions Bank [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Net interest income	146,700,000	145,100,000	434,800,000	447,400,000
Provision for loan losses	-27,700,000	-9,500,000	-51,800,000	-18,400,000
Net interest income after provision for loan losses	174,400,000	154,600,000	486,600,000	465,800,000
Net impairment losses on investment securities	0	0	0	0
Gain (Loss) on Sale of Securities, Net	0	0	0	0
Other noninterest income	44,800,000	47,700,000	139,000,000	152,200,000
Noninterest expense	123,400,000	119,100,000	366,000,000	362,100,000
Income before income taxes	95,800,000	83,200,000	259,600,000	255,900,000
Income Tax Expense (Benefit)	35,400,000	30,200,000	95,400,000	93,300,000
Net income	60,400,000	53,000,000	164,200,000	162,600,000
Total assets	18,083,000,000	18,237,000,000	17,983,000,000	17,609,000,000
Average cash and due from banks	323,000,000	339,000,000	333,000,000	347,000,000
Average money market investments	3,079,000,000	3,868,000,000	3,099,000,000	3,113,000,000
Average Securities	1,814,000,000	1,287,000,000	1,720,000,000	1,279,000,000
Total loans	12,312,000,000	12,271,000,000	12,292,000,000	12,330,000,000
Total deposits	15,829,000,000	15,951,000,000	15,709,000,000	15,314,000,000
Preferred equity	280,000,000	280,000,000	280,000,000	280,000,000
Common equity	1,578,000,000	1,530,000,000	1,556,000,000	1,524,000,000
Noncontrolling interests	'	'	0	0
Total shareholders' equity	1,858,000,000	1,810,000,000	1,836,000,000	1,804,000,000
CB&T [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Net interest income	98,900,000	109,800,000	311,800,000	347,000,000
Provision for loan losses	-10,100,000	-3,000,000	-25,100,000	-12,800,000
Net interest income after provision for loan losses	109,000,000	112,800,000	336,900,000	359,800,000
Net impairment losses on investment securities	0	0	0	0
Gain (Loss) on Sale of Securities, Net	0	0	0	0
Other noninterest income	17,500,000	20,800,000	37,100,000	62,100,000
Noninterest expense	77,100,000	75,900,000	244,800,000	260,700,000
Income before income taxes	49,400,000	57,700,000	129,200,000	161,200,000
Income Tax Expense (Benefit)	19,100,000	23,000,000	50,200,000	63,700,000
Net income	30,300,000	34,700,000	79,000,000	97,500,000
Total assets	11,252,000,000	10,869,000,000	11,063,000,000	10,871,000,000
Average cash and due from banks	134,000,000	164,000,000	152,000,000	168,000,000
Average money market investments	1,577,000,000	1,288,000,000	1,321,000,000	1,284,000,000
Average Securities	258,000,000	321,000,000	274,000,000	333,000,000
Total loans	8,520,000,000	8,328,000,000	8,571,000,000	8,297,000,000
Total deposits	9,592,000,000	9,261,000,000	9,421,000,000	9,267,000,000
Preferred equity	162,000,000	162,000,000	162,000,000	162,000,000
Common equity	1,386,000,000	1,326,000,000	1,368,000,000	1,324,000,000
Noncontrolling interests	'	'	0	0
Total shareholders' equity	1,548,000,000	1,488,000,000	1,530,000,000	1,486,000,000
Number of branches	95	'	95	'
Amegy [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Net interest income	95,800,000	95,500,000	285,900,000	284,900,000
Provision for loan losses	-3,500,000	12,800,000	5,900,000	4,700,000
Net interest income after provision for loan losses	99,300,000	82,700,000	280,000,000	280,200,000
Net impairment losses on investment securities	0	0	0	0
Gain (Loss) on Sale of Securities, Net	0	0	0	0
Other noninterest income	39,400,000	37,100,000	107,700,000	111,000,000
Noninterest expense	79,100,000	75,300,000	258,600,000	251,400,000
Income before income taxes	59,600,000	44,500,000	129,100,000	139,800,000
Income Tax Expense (Benefit)	20,400,000	14,900,000	43,600,000	46,800,000
Net income	39,200,000	29,600,000	85,500,000	93,000,000
Total assets	13,861,000,000	13,453,000,000	13,650,000,000	13,122,000,000
Average cash and due from banks	172,000,000	255,000,000	235,000,000	283,000,000
Average money market investments	2,555,000,000	2,823,000,000	2,498,000,000	2,563,000,000
Average Securities	266,000,000	285,000,000	256,000,000	336,000,000
Total loans	9,721,000,000	8,981,000,000	9,550,000,000	8,790,000,000
Total deposits	11,384,000,000	11,024,000,000	11,217,000,000	10,707,000,000
Preferred equity	226,000,000	248,000,000	202,000,000	250,000,000
Common equity	1,903,000,000	1,805,000,000	1,875,000,000	1,775,000,000
Noncontrolling interests	'	'	0	0
Total shareholders' equity	2,129,000,000	2,053,000,000	2,077,000,000	2,025,000,000
Number of branches	84	'	84	'
NBA [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Net interest income	40,300,000	40,500,000	120,900,000	122,400,000
Provision for loan losses	-4,500,000	-7,300,000	-15,500,000	-12,000,000
Net interest income after provision for loan losses	44,800,000	47,800,000	136,400,000	134,400,000
Net impairment losses on investment securities	0	0	0	0
Gain (Loss) on Sale of Securities, Net	0	0	0	0
Other noninterest income	9,600,000	8,600,000	26,200,000	25,600,000
Noninterest expense	33,200,000	35,300,000	109,400,000	104,900,000
Income before income taxes	21,200,000	21,100,000	53,200,000	55,100,000
Income Tax Expense (Benefit)	7,900,000	7,700,000	19,700,000	20,500,000
Net income	13,300,000	13,400,000	33,500,000	34,600,000
Total assets	4,710,000,000	4,624,000,000	4,673,000,000	4,612,000,000
Average cash and due from banks	73,000,000	70,000,000	73,000,000	70,000,000
Average money market investments	401,000,000	444,000,000	368,000,000	452,000,000
Average Securities	380,000,000	320,000,000	372,000,000	298,000,000
Total loans	3,660,000,000	3,600,000,000	3,668,000,000	3,588,000,000
Total deposits	4,081,000,000	3,945,000,000	4,016,000,000	3,919,000,000
Preferred equity	85,000,000	153,000,000	101,000,000	171,000,000
Common equity	465,000,000	410,000,000	447,000,000	406,000,000
Noncontrolling interests	'	'	0	0
Total shareholders' equity	550,000,000	563,000,000	548,000,000	577,000,000
Number of branches	71	'	71	'
NSB [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Net interest income	28,400,000	28,400,000	84,600,000	84,400,000
Provision for loan losses	-4,900,000	0	-13,200,000	-8,900,000
Net interest income after provision for loan losses	33,300,000	28,400,000	97,800,000	93,300,000
Net impairment losses on investment securities	0	0	0	0
Gain (Loss) on Sale of Securities, Net	0	0	0	0
Other noninterest income	9,600,000	11,400,000	23,400,000	30,000,000
Noninterest expense	31,800,000	32,000,000	97,900,000	97,900,000
Income before income taxes	11,100,000	7,800,000	23,300,000	25,400,000
Income Tax Expense (Benefit)	3,700,000	2,600,000	7,700,000	8,600,000
Net income	7,400,000	5,200,000	15,600,000	16,800,000
Total assets	4,074,000,000	4,022,000,000	4,046,000,000	4,046,000,000
Average cash and due from banks	95,000,000	87,000,000	89,000,000	85,000,000
Average money market investments	738,000,000	883,000,000	734,000,000	944,000,000
Average Securities	799,000,000	785,000,000	789,000,000	769,000,000
Total loans	2,318,000,000	2,158,000,000	2,314,000,000	2,127,000,000
Total deposits	3,670,000,000	3,600,000,000	3,648,000,000	3,606,000,000
Preferred equity	50,000,000	90,000,000	50,000,000	114,000,000
Common equity	330,000,000	310,000,000	324,000,000	304,000,000
Noncontrolling interests	'	'	0	0
Total shareholders' equity	380,000,000	400,000,000	374,000,000	418,000,000
Number of branches	50	'	50	'
Vectra [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Net interest income	25,400,000	25,800,000	76,100,000	76,500,000
Provision for loan losses	-3,200,000	1,800,000	-9,500,000	-7,600,000
Net interest income after provision for loan losses	28,600,000	24,000,000	85,600,000	84,100,000
Net impairment losses on investment securities	0	0	0	0
Gain (Loss) on Sale of Securities, Net	0	0	0	0
Other noninterest income	6,000,000	6,500,000	15,700,000	19,600,000
Noninterest expense	24,200,000	24,400,000	73,200,000	75,000,000
Income before income taxes	10,400,000	6,100,000	28,100,000	28,700,000
Income Tax Expense (Benefit)	3,600,000	2,100,000	9,700,000	10,000,000
Net income	6,800,000	4,000,000	18,400,000	18,700,000
Total assets	2,751,000,000	2,630,000,000	2,639,000,000	2,541,000,000
Average cash and due from banks	41,000,000	48,000,000	45,000,000	50,000,000
Average money market investments	176,000,000	127,000,000	70,000,000	84,000,000
Average Securities	152,000,000	184,000,000	158,000,000	184,000,000
Total loans	2,319,000,000	2,195,000,000	2,305,000,000	2,142,000,000
Total deposits	2,339,000,000	2,258,000,000	2,231,000,000	2,177,000,000
Preferred equity	26,000,000	70,000,000	46,000,000	70,000,000
Common equity	307,000,000	241,000,000	279,000,000	235,000,000
Noncontrolling interests	'	'	0	0
Total shareholders' equity	333,000,000	311,000,000	325,000,000	305,000,000
TCBW [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Net interest income	7,600,000	7,000,000	21,900,000	20,300,000
Provision for loan losses	-600,000	-300,000	-300,000	-1,100,000
Net interest income after provision for loan losses	8,200,000	7,300,000	22,200,000	21,400,000
Net impairment losses on investment securities	0	0	0	0
Gain (Loss) on Sale of Securities, Net	0	-2,700,000	0	-2,700,000
Other noninterest income	1,000,000	1,000,000	1,000,000	3,000,000
Noninterest expense	4,700,000	4,800,000	14,200,000	13,600,000
Income before income taxes	4,500,000	800,000	9,000,000	8,100,000
Income Tax Expense (Benefit)	1,500,000	300,000	3,100,000	2,800,000
Net income	3,000,000	500,000	5,900,000	5,300,000
Total assets	892,000,000	882,000,000	878,000,000	866,000,000
Average cash and due from banks	27,000,000	19,000,000	23,000,000	19,000,000
Average money market investments	127,000,000	121,000,000	113,000,000	135,000,000
Average Securities	73,000,000	101,000,000	79,000,000	103,000,000
Total loans	654,000,000	627,000,000	650,000,000	596,000,000
Total deposits	759,000,000	743,000,000	745,000,000	727,000,000
Preferred equity	3,000,000	3,000,000	3,000,000	3,000,000
Common equity	93,000,000	86,000,000	91,000,000	84,000,000
Noncontrolling interests	'	'	0	0
Total shareholders' equity	96,000,000	89,000,000	94,000,000	87,000,000
Number of branches	1	'	1	'
Other Banks [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Net interest income	-26,400,000	-36,600,000	-86,500,000	-118,600,000
Provision for loan losses	-200,000	-100,000	-200,000	-500,000
Net interest income after provision for loan losses	-26,200,000	-36,500,000	-86,300,000	-118,100,000
Net impairment losses on investment securities	0	-9,100,000	0	-23,400,000
Gain (Loss) on Sale of Securities, Net	0	2,700,000	0	2,700,000
Other noninterest income	-11,900,000	-1,800,000	29,100,000	-11,600,000
Noninterest expense	65,000,000	3,900,000	78,500,000	54,100,000
Income before income taxes	-103,100,000	-48,600,000	-135,700,000	-204,500,000
Income Tax Expense (Benefit)	-38,500,000	-19,700,000	-50,200,000	-80,900,000
Net income	-64,600,000	-28,900,000	-85,500,000	-123,600,000
Total assets	505,000,000	798,000,000	603,000,000	1,019,000,000
Average cash and due from banks	-3,000,000	-6,000,000	-9,000,000	-9,000,000
Average money market investments	-164,000,000	-100,000,000	-159,000,000	169,000,000
Average Securities	305,000,000	592,000,000	414,000,000	551,000,000
Total loans	64,000,000	64,000,000	64,000,000	63,000,000
Total deposits	-1,364,000,000	-1,194,000,000	-1,143,000,000	-718,000,000
Preferred equity	172,000,000	680,000,000	160,000,000	429,000,000
Common equity	159,000,000	-518,000,000	-84,000,000	-557,000,000
Noncontrolling interests	'	'	0	-2,000,000
Total shareholders' equity	331,000,000	162,000,000	76,000,000	-130,000,000
Consolidated Company [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Net interest income	416,700,000	415,500,000	1,249,500,000	1,264,300,000
Provision for loan losses	-54,700,000	-5,600,000	-109,700,000	-56,600,000
Net interest income after provision for loan losses	471,400,000	421,100,000	1,359,200,000	1,320,900,000
Net impairment losses on investment securities	0	-9,100,000	0	-23,400,000
Gain (Loss) on Sale of Securities, Net	0	0	0	0
Other noninterest income	116,000,000	131,300,000	379,200,000	391,900,000
Noninterest expense	438,500,000	370,700,000	1,242,600,000	1,219,700,000
Income before income taxes	148,900,000	172,600,000	495,800,000	469,700,000
Income Tax Expense (Benefit)	53,100,000	61,100,000	179,200,000	164,800,000
Net income	95,800,000	111,500,000	316,600,000	304,900,000
Total assets	56,128,000,000	55,515,000,000	55,535,000,000	54,686,000,000
Average cash and due from banks	862,000,000	976,000,000	941,000,000	1,013,000,000
Average money market investments	8,489,000,000	9,454,000,000	8,044,000,000	8,744,000,000
Average Securities	4,047,000,000	3,875,000,000	4,062,000,000	3,853,000,000
Total loans	39,568,000,000	38,224,000,000	39,414,000,000	37,933,000,000
Total deposits	46,290,000,000	45,588,000,000	45,844,000,000	44,999,000,000
Preferred equity	1,004,000,000	1,686,000,000	1,004,000,000	1,479,000,000
Common equity	6,221,000,000	5,190,000,000	5,856,000,000	5,095,000,000
Noncontrolling interests	'	'	0	-2,000,000
Total shareholders' equity	$7,225,000,000	$6,876,000,000	$6,860,000,000	$6,572,000,000
TCBO [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Number of branches	1	'	1	'
Utah [Member] | Zions Bank [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Number of branches	100	'	100	'
Idaho [Member] | Zions Bank [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Number of branches	26	'	26	'
WYOMING | Zions Bank [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Number of branches	1	'	1	'
Colorado [Member] | Vectra [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Number of branches	36	'	36	'
New Mexico [Member] | Vectra [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Number of branches	1	'	1	'