10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

ý QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2015

or

¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from to

COMMISSION FILE NUMBER 001-12307

ZIONS BANCORPORATION

(Exact name of registrant as specified in its charter)

UTAH	87-0227400
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
One South Main, 15th Floor Salt Lake City, Utah	84133
(Address of principal executive offices)	(Zip Code)

Registrant’s telephone number, including area code: (801) 844-7637

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  ý    No  ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  ý    No  ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer	ý	Accelerated filer	¨
Non-accelerated filer	¨	Smaller reporting company	¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ¨    No  ý

Indicate the number of shares outstanding of each of the issuer’s classes of common stock, as of the latest practicable date.

Common Stock, without par value, outstanding at November 2, 2015 204,294,516 shares

ZIONS BANCORPORATION AND SUBSIDIARIES

Table of Contents

		Page
PART  I. FINANCIAL INFORMATION
Item 1.	Financial Statements (Unaudited)
	Consolidated Balance Sheets	3
	Consolidated Statements of Income	4
	Consolidated Statements of Comprehensive Income	5
	Consolidated Statements of Changes in Shareholders’ Equity	6
	Consolidated Statements of Cash Flows	7
	Notes to Consolidated Financial Statements	8
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	52
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	92
Item 4.	Controls and Procedures	92
PART II. OTHER INFORMATION
Item 1.	Legal Proceedings	92
Item 1A.	Risk Factors	92
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	93
Item 6.	Exhibits	94
Signatures		95

2

PART I. FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS (Unaudited)

ZIONS BANCORPORATION AND SUBSIDIARIES CONSOLIDATED BALANCE SHEETS
(In thousands, except shares)	September 30, 2015			December 31, 2014
	(Unaudited)
ASSETS
Cash and due from banks	$	602,694		$	841,942
Money market investments:
Interest-bearing deposits	6,558,678			7,178,097
Federal funds sold and security resell agreements	1,325,501			1,386,291
Investment securities:
Held-to-maturity, at amortized cost (approximate fair value $553,088 and $677,196)	544,168			647,252
Available-for-sale, at fair value	6,000,011			3,844,248
Trading account, at fair value	73,521			70,601
	6,617,700			4,562,101
Loans held for sale	139,122			132,504
Loans and leases, net of unearned income and fees	40,113,123			40,063,658
Less allowance for loan losses	596,440			604,663
Loans, net of allowance	39,516,683			39,458,995
Other noninterest-bearing investments	851,225			865,950
Premises and equipment, net	873,800			829,809
Goodwill	1,014,129			1,014,129
Core deposit and other intangibles	18,546			25,520
Other real estate owned	12,799			18,916
Other assets	880,050			894,620
	$	58,410,927		$	57,208,874
LIABILITIES AND SHAREHOLDERS’ EQUITY
Deposits:
Noninterest-bearing demand	$	21,572,022		$	20,529,124
Interest-bearing:
Savings and money market	24,690,359			24,583,636
Time	2,216,206			2,406,924
Foreign	441,560			328,391
	48,920,147			47,848,075
Federal funds and other short-term borrowings	272,391			244,223
Long-term debt	944,752			1,092,282
Reserve for unfunded lending commitments	81,389			81,076
Other liabilities	554,153			573,688
Total liabilities	50,772,832			49,839,344
Shareholders’ equity:
Preferred stock, without par value, authorized 4,400,000 shares	1,004,159			1,004,011
Common stock, without par value; authorized 350,000,000 shares; issued and outstanding 204,278,594 and 203,014,903 shares	4,756,288			4,723,855
Retained earnings	1,894,623			1,769,705
Accumulated other comprehensive income (loss)	(16,975		)	(128,041		)
Total shareholders’ equity	7,638,095			7,369,530
	$	58,410,927		$	57,208,874

See accompanying notes to consolidated financial statements.

3

ZIONS BANCORPORATION AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF INCOME (Unaudited)
(In thousands, except per share amounts)	Three Months Ended September 30,						Nine Months Ended September 30,
	2015			2014			2015			2014
Interest income:
Interest and fees on loans	$	419,981		$	430,416		$	1,256,378		$	1,298,567
Interest on money market investments	6,018			5,483			17,021			15,501
Interest on securities	30,231			24,377			86,513			76,973
Total interest income	456,230			460,276			1,359,912			1,391,041
Interest expense:
Interest on deposits	12,542			12,313			36,967			37,188
Interest on short- and long-term borrowings	18,311			31,144			56,518			104,280
Total interest expense	30,853			43,457			93,485			141,468
Net interest income	425,377			416,819			1,266,427			1,249,573
Provision for loan losses	18,262			(54,643		)	17,334			(109,669		)
Net interest income after provision for loan losses	407,115			471,462			1,249,093			1,359,242
Noninterest income:
Service charges and fees on deposit accounts	43,196			43,468			126,006			126,068
Other service charges, commissions and fees	52,837			51,639			152,028			143,847
Wealth management income	7,496			7,438			23,271			22,495
Loan sales and servicing income	7,728			7,592			23,816			22,020
Capital markets and foreign exchange	6,624			5,400			19,400			16,319
Dividends and other investment income	8,449			11,324			27,164			27,183
Fair value and nonhedge derivative income (loss)	(1,555		)	44			(799		)	(10,429		)
Equity securities gains, net	3,630			440			11,822			3,865
Fixed income securities gains (losses), net	(53		)	(13,901		)	(138,728		)	22,039
Impairment losses on investment securities	—			—			—			(27		)
Less amounts recognized in other comprehensive income	—						—			—
Net impairment losses on investment securities	—			—			—			(27		)
Other	2,461			2,627			9,076			5,854
Total noninterest income	130,813			116,071			253,056			379,234
Noninterest expense:
Salaries and employee benefits	242,023			245,518			736,675			717,680
Occupancy, net	29,477			28,495			88,911			85,739
Furniture, equipment and software	30,416			28,524			91,376			84,454
Other real estate expense, net	(40		)	875			(111		)	2,216
Credit-related expense	6,914			6,508			20,959			20,615
Provision for unfunded lending commitments	1,428			(16,095		)	313			(10,328		)
Professional and legal services	12,699			16,588			37,292			39,754
Advertising	6,136			6,094			19,622			19,295
FDIC premiums	8,500			8,204			25,228			24,143
Amortization of core deposit and other intangibles	2,298			2,665			6,974			8,283
Debt extinguishment cost	—			44,422			2,395			44,422
Other	56,298			66,738			168,076			206,353
Total noninterest expense	396,149			438,536			1,197,710			1,242,626
Income before income taxes	141,779			148,997			304,439			495,850
Income taxes	40,780			53,109			97,455			179,202
Net income	100,999			95,888			206,984			316,648
Dividends on preferred stock	(16,761		)	(16,761		)	(48,567		)	(56,841		)
Net earnings applicable to common shareholders	$	84,238		$	79,127		$	158,417		$	259,807
Weighted average common shares outstanding during the period:
Basic shares	203,668			196,687			203,057			188,643
Diluted shares	204,155			197,271			203,511			189,260
Net earnings per common share:
Basic	$	0.41		$	0.40		$	0.77		$	1.36
Diluted	0.41			0.40			0.77			1.36

See accompanying notes to consolidated financial statements.

4

ZIONS BANCORPORATION AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited)
	Three Months Ended September 30,						Nine Months Ended September 30,
(In thousands)	2015			2014			2015			2014
Net income for the period	$	100,999		$	95,888		$	206,984		$	316,648
Other comprehensive income, net of tax:
Net unrealized holding gains on investment securities	11,268			18,265			4,460			100,723
Reclassification of HTM securities to AFS securities	—			—			10,938			—
Reclassification to earnings for realized net fixed income securities losses (gains)	33			7,886			85,845			(20,058		)
Reclassification to earnings for net credit-related impairment losses on investment securities	—			—			—			17
Accretion of securities with noncredit-related impairment losses not expected to be sold	—			276			—			835
Net unrealized gains (losses) on other noninterest-bearing investments	(1,881		)	454			94			(333		)
Net unrealized holding gains (losses) on derivative instruments	10,607			(508		)	12,941			1,011
Reclassification adjustment for increase in interest income recognized in earnings on derivative instruments	(1,830		)	(463		)	(3,212		)	(1,021		)
Other comprehensive income	18,197			25,910			111,066			81,174
Comprehensive income	$	119,196		$	121,798		$	318,050		$	397,822

See accompanying notes to consolidated financial statements.

5

ZIONS BANCORPORATION AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS’ EQUITY (Unaudited)
(In thousands, except shares and per share amounts)	Preferred stock		Common stock				Retained earnings			Accumulated other comprehensive income (loss)				Total shareholders’ equity
			Shares	Amount
Balance at December 31, 2014	$	1,004,011	203,014,903	$	4,723,855		$	1,769,705			$	(128,041	)	$	7,369,530
Net income for the period							206,984							206,984
Other comprehensive income, net of tax											111,066			111,066
Subordinated debt converted to preferred stock	148			(44		)								104
Net activity under employee plans and related tax benefits			1,263,691	32,477										32,477
Dividends on preferred stock							(48,567		)					(48,567		)
Dividends on common stock, $0.16 per share							(32,785		)					(32,785		)
Change in deferred compensation							(714		)					(714		)
Balance at September 30, 2015	$	1,004,159	204,278,594	$	4,756,288		$	1,894,623			$	(16,975	)	$	7,638,095
Balance at December 31, 2013	$	1,003,970	184,677,696	$	4,179,024		$	1,473,670			$	(192,101	)	$	6,464,563
Net income for the period							316,648							316,648
Other comprehensive income, net of tax											81,174			81,174
Issuance of common stock			17,617,450	515,856										515,856
Subordinated debt converted to preferred stock	36			(5		)								31
Net activity under employee plans and related tax benefits			603,345	22,420										22,420
Dividends on preferred stock							(56,841		)					(56,841		)
Dividends on common stock, $0.12 per share							(23,039		)					(23,039		)
Change in deferred compensation							1,347							1,347
Balance at September 30, 2014	$	1,004,006	202,898,491	$	4,717,295		$	1,711,785			$	(110,927	)	$	7,322,159

See accompanying notes to consolidated financial statements.

6

ZIONS BANCORPORATION AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)
(In thousands)	Three Months Ended September 30,						Nine Months Ended September 30,
	2015			2014			2015			2014
CASH FLOWS FROM OPERATING ACTIVITIES
Net income for the period	$	100,999		$	95,888		$	206,984		$	316,648
Adjustments to reconcile net income to net cash provided by operating activities:
Debt extinguishment cost	—			44,422			2,395			44,422
Provision for credit losses	19,690			(70,738		)	17,647			(119,997		)
Depreciation and amortization	40,281			33,860			109,563			97,414
Fixed income securities losses (gains), net	53			13,901			138,728			(22,039		)
Deferred income tax expense (benefit)	(10,027		)	2,960			(51,056		)	22,368
Net decrease (increase) in trading securities	970			1,241			(2,950		)	(20,868		)
Net decrease in loans held for sale	23,314			53,820			3,263			60,774
Change in other liabilities	21,525			33,919			(14,738		)	(24,598		)
Change in other assets	31,178			4,739			(1,991		)	(8,721		)
Other, net	(15,461		)	(5,745		)	(21,475		)	6,528
Net cash provided by operating activities	212,522			208,267			386,370			351,931
CASH FLOWS FROM INVESTING ACTIVITIES
Net decrease (increase) in money market investments	1,181,378			(955,971		)	680,209			635,594
Proceeds from maturities and paydowns of investment securities held-to-maturity	26,875			20,796			87,785			58,921
Purchases of investment securities held-to-maturity	(142		)	(14,964		)	(24,203		)	(78,228		)
Proceeds from sales, maturities, and paydowns of investment securities available-for-sale	385,584			374,973			1,365,851			1,417,234
Purchases of investment securities available-for-sale	(1,728,939		)	(451,212		)	(3,486,509		)	(1,125,036		)
Net change in loans and leases	(122,868		)	(126,173		)	(74,974		)	(738,706		)
Purchases of premises and equipment	(38,747		)	(26,153		)	(106,115		)	(138,884		)
Proceeds from sales of other real estate owned	8,019			8,200			16,592			37,112
Other, net	17,610			12,799			46,935			19,796
Net cash provided by (used in) investing activities	(271,230		)	(1,157,705		)	(1,494,429		)	87,803
CASH FLOWS FROM FINANCING ACTIVITIES
Net increase (decrease) in deposits	(16,977		)	594,422			1,072,072			(96,321		)
Net change in short-term funds borrowed	45,267			(66,603		)	28,168			(148,550		)
Repayments of long-term debt	(111,477		)	(834,964		)	(164,082		)	(1,196,123		)
Debt extinguishment costs paid	—			(35,435		)	(2,395		)	(35,435		)
Proceeds from the issuance of common stock	13,599			519,559			19,631			524,080
Dividends paid on common and preferred stock	(27,420		)	(23,243		)	(79,699		)	(71,191		)
Other, net	172			112			(4,884		)	(3,579		)
Net cash provided by (used in) financing activities	(96,836		)	153,848			868,811			(1,027,119		)
Net decrease in cash and due from banks	(155,544		)	(795,590		)	(239,248		)	(587,385		)
Cash and due from banks at beginning of period	758,238			1,381,262			841,942			1,173,057
Cash and due from banks at end of period	$	602,694		$	585,672		$	602,694		$	585,672
Cash paid for interest	$	22,162		$	41,138		$	73,219		$	122,807
Net cash paid for income taxes	8,679			58,645			100,505			181,301

See accompanying notes to consolidated financial statements.

7

ZIONS BANCORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

September 30, 2015

1. 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. These reclassifications did not affect net income.

Operating results for the three and nine months endedSeptember 30, 2015 and 2014 are not necessarily indicative of the results that may be expected in future periods. The consolidated balance sheet at December 31, 2014 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 2014 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; Amegy Corporation (“Amegy”) and its subsidiary, Amegy Bank, in Texas; California Bank & Trust (“CB&T”); National Bank of Arizona (“NBAZ”); Nevada State Bank (“NSB”); Vectra Bank Colorado (“Vectra”), in Colorado and New Mexico; and The Commerce Bank of Washington (“TCBW”), in Washington and Oregon. Effective April 1, 2015, The Commerce Bank of Oregon (“TCBO”) was merged into TCBW. The Parent and its subsidiary banks also own and operate certain nonbank subsidiaries that engage in financial services. On June 1, 2015, the Company announced certain efficiency and restructuring initiatives that included, among other things, the mergers of its seven subsidiary banks into Zions Bank, whose name will be changed to ZB, N.A. Regional brand names according to geographic location will continue to be used. The Company has received approvals from the Office of the Comptroller of the Currency and the Federal Deposit Insurance Corporation and expects to complete the mergers following the close of business on December 31, 2015.

2. RECENT ACCOUNTING PRONOUNCEMENTS

Standard	Description	Date of adoption	Effect on the financial statements or other significant matters
Standards not yet adopted by the Company
ASU 2015-07, Disclosures for Investments in Certain Entities That Calculate Net Asset Value per Share (or its Equivalent), (Topic 820)	The guidance eliminates the current requirement to categorize within the fair value hierarchy investments whose fair values are measured at net asset value (“NAV”) using the practical expedient in ASC 820. Fair value disclosure of these investments will be made to facilitate reconciliation to amounts reported on the balance sheet. Other related disclosures will continue when the NAV practical expedient is used. Adoption is retrospective and early adoption is permitted.	January 1, 2016	We do not currently expect this new disclosure guidance will have a material impact on the Company’s financial statements.

8

ZIONS BANCORPORATION AND SUBSIDIARIES

Standard	Description	Date of adoption	Effect on the financial statements or other significant matters
Standards not yet adopted by the Company (continued)
ASU 2015-05, Customer’s Accounting for Fees Paid in a Cloud Computing Arrangement (Subtopic 350-40)	The standard provides guidance to determine whether an arrangement includes a software license. If it does, the customer accounts for it the same way as for other software licenses. If no software license is included, the customer accounts for it as a service contract. Adoption may be retrospective or prospective. Early adoption is permitted.	January 1, 2016	We are currently evaluating the impact this new guidance may have on the Company’s financial statements.
ASU 2015-03, Simplifying the Presentation of Debt Issuance Costs (Subtopic 835-30)	The standard requires that debt issuance costs be presented in the balance sheet as a direct deduction from the carrying amount of the associated debt liability, consistent with debt discounts. Adoption is retrospective and early adoption is permitted.	January 1, 2016	We currently include debt issuance costs in other assets. The amount to be reclassified to the debt liability is not material to the Company’s financial statements.
ASU 2015-02, Amendments to the Consolidation Analysis (Topic 810)	The new standard changes certain criteria in the variable interest model and the voting model to determine whether certain legal entities are variable interest entities (“VIEs”) and whether they should be consolidated. Additional disclosures are required for entities not currently considered VIEs, but may become VIEs under the new guidance and may be subject to consolidation. Adoption may be retrospective or modified retrospective with a cumulative effect adjustment. Early adoption is permitted.	January 1, 2016	We currently do not consolidate any VIEs and do not expect this new guidance will have a material impact on the Company’s financial statements.
ASU 2014-09, Revenue from Contracts with Customers (Topic 606)	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 standard, (including loans, derivatives, debt and equity securities, etc.). However, the new standard affects other fees charged by banks, such as asset management fees, credit card interchange fees, deposit account fees, etc. Adoption may be made on a full retrospective basis with practical expedients, or on a modified retrospective basis with a cumulative effect adjustment. Early adoption of the guidance is permitted as of January 1, 2017.	January 1, 2018, as extended in August 2015 by ASU 2015-14	While we currently do not expect this standard will have a material impact on the Company’s financial statements, we are still in process of conducting our evaluation.
Standards adopted by the Company
ASU 2014-14, Classification of Certain Government-Guaranteed Mortgage Loans upon Foreclosure (Subtopic 310-40)	The standard addresses the classification of certain foreclosed mortgage loans fully or partially guaranteed under government programs. Under certain such programs, qualifying creditors can extend mortgage loans with a guarantee entitling the creditor to recover all or a portion of the unpaid principal balance from the government if the borrower defaults. A separate other receivable is established that is measured based on the amount of the loans expected to be recovered.	January 1, 2015	Our adoption of this standard had no impact on the accompanying financial statements.

9

ZIONS BANCORPORATION AND SUBSIDIARIES

Standard	Description	Date of adoption	Effect on the financial statements or other significant matters
Standards adopted by the Company (continued)
ASU 2014-04, Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure (Subtopic 310-40)	The standard 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. Additional financial statement disclosures will be required.	January 1, 2015	Our adoption of this standard added a nominal amount of additional disclosure to Note 6.
ASU 2014-01, Accounting for Investments in Qualified Affordable Housing Projects (Topic 323)	The standard revised conditions an entity must meet to elect the effective yield method when accounting for qualified affordable housing project investments. The EITF final consensus changed the method of amortizing a Low-Income Housing Tax Credit (“LIHTC”) investment from the effective yield method to a proportional amorti-zation method. Amortization would be proportional to the tax credits and tax benefits received but, under a practical expedient 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.	January 1, 2015	Our adoption of this standard did not have a material impact on the accompanying financial statements.

3. SUPPLEMENTAL CASH FLOW INFORMATION

Noncash activities are summarized as follows:

(In thousands)	Three Months Ended September 30,				Nine Months Ended September 30,
	2015		2014		2015		2014
Loans and leases transferred to other real estate owned	$	3,446	$	8,954	$	10,098	$	20,197
Loans held for sale reclassified as loans and leases	22,299		9,658		33,042		14,739
Amortized cost of HTM securities reclassified as AFS securities	—		—		79,276		—

4. OFFSETTING ASSETS AND LIABILITIES

Gross and net information for selected financial instruments in the balance sheet is as follows:

	September 30, 2015
(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	$	1,325,501	$	—	$	1,325,501	$	—		$	—		$	1,325,501
Derivatives (included in other assets)	103,119		—		103,119		(17,207		)	—			85,912
	$	1,428,620	$	—	$	1,428,620	$	(17,207	)	$	—		$	1,411,413
Liabilities:
Federal funds and other short-term borrowings	$	272,391	$	—	$	272,391	$	—		$	—		$	272,391
Derivatives (included in other liabilities)	86,363		—		86,363		(17,207		)	(37,109		)	32,047
	$	358,754	$	—	$	358,754	$	(17,207	)	$	(37,109	)	$	304,438

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	December 31, 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	$	1,386,291	$	—	$	1,386,291	$	—		$	—		$	1,386,291
Derivatives (included in other assets)	66,420		—		66,420		(3,755		)				62,665
	$	1,452,711	$	—	$	1,452,711	$	(3,755	)	$	—		$	1,448,956
Liabilities:
Federal funds and other short-term borrowings	$	244,223	$	—	$	244,223	$	—		$	—		$	244,223
Derivatives (included in other liabilities)	66,064		—		66,064		(3,755		)	(31,968		)	30,341
	$	310,287	$	—	$	310,287	$	(3,755	)	$	(31,968	)	$	274,564

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.

5. INVESTMENTS

Investment Securities

Investment securities are summarized below. Note 10 discusses the process to estimate fair value for investment securities.

	September 30, 2015
(In thousands)	Amortized cost		Gross unrealized gains		Gross unrealized losses		Estimated fair value
Held-to-maturity
Municipal securities	$	544,168	$	9,976	$	1,056	$	553,088
Available-for-sale
U.S. Government agencies and corporations:
Agency securities	1,102,978		7,147		578		1,109,547
Agency guaranteed mortgage-backed securities	2,805,901		12,989		5,619		2,813,271
Small Business Administration loan-backed securities	1,815,766		14,177		10,779		1,819,164
Municipal securities	212,698		1,059		359		213,398
Other debt securities	25,485		187		2,905		22,767
	5,962,828		35,559		20,240		5,978,147
Money market mutual funds and other	21,773		91		—		21,864
	5,984,601		35,650		20,240		6,000,011
Total	$	6,528,769	$	45,626	$	21,296	$	6,553,099

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	December 31, 2014
			Recognized in OCI 1						Not recognized in OCI
(In thousands)	Amortized cost		Gross unrealized gains		Gross unrealized losses		Carrying value		Gross unrealized gains		Gross unrealized losses		Estimated fair value
Held-to-maturity
Municipal securities	$	607,675	$	—	$	—	$	607,675	$	13,018	$	804	$	619,889
Asset-backed securities:
Trust preferred securities – banks and insurance	79,276		—		39,699		39,577		18,393		663		57,307
	686,951		—		39,699		647,252		$	31,411	$	1,467	677,196
Available-for-sale
U.S. Government agencies and corporations:
Agency securities	607,523		1,572		8,343		600,752						600,752
Agency guaranteed mortgage-backed securities	935,164		12,132		2,105		945,191						945,191
Small Business Administration loan-backed securities	1,544,710		16,446		8,891		1,552,265						1,552,265
Municipal securities	189,059		1,143		945		189,257						189,257
Asset-backed securities:
Trust preferred securities – banks and insurance	537,589		103		121,984		415,708						415,708
Other	5,252		207		7		5,452						5,452
	3,819,297		31,603		142,275		3,708,625						3,708,625
Money market mutual funds and other	136,591		76		1,044		135,623						135,623
	3,955,888		31,679		143,319		3,844,248						3,844,248
Total	$	4,642,839	$	31,679	$	183,018	$	4,491,500					$	4,521,444

¹  Other comprehensive income

CDO Sales and Paydowns

During the second quarter of 2015, we sold the remaining portfolio of our collateralized debt obligation (“CDO”) securities, or $574 million at amortized cost, and realized net losses of approximately $137 million.

During the first quarter of 2015, we reclassified all of the remaining held-to-maturity (“HTM”) CDO securities, or approximately $79 million at amortized cost, to available-for-sale (“AFS”) securities. The reclassification resulted from increased risk weights for these securities under the new Basel III capital rules, and was made in accordance with applicable accounting guidance that allows for such reclassifications when increased risk weights of debt securities must be used for regulatory risk-based capital purposes. No gain or loss was recognized in the statement of income at the time of reclassification.

During the first nine months of 2014, we recorded a total of $1,294 million par amount of sales and paydowns of CDO securities, resulting in net gains of approximately $22 million. These sales were made in part as a result of the Volcker Rule (“VR”).

Maturities

The amortized cost and estimated fair value of investment debt securities are shown subsequently as of September 30, 2015 by expected timing of principal payments. Actual principal payments may differ from contractual or expected principal payments because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.

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	Held-to-maturity				Available-for-sale
(In thousands)	Amortized cost		Estimated fair value		Amortized cost		Estimated fair value
Principal return in one year or less	$	88,169	$	88,714	$	822,647	$	824,744
Principal return after one year through five years	168,734		171,164		2,314,091		2,319,836
Principal return after five years through ten years	152,942		158,331		1,857,898		1,862,624
Principal return after ten years	134,323		134,879		968,192		970,943
	$	544,168	$	553,088	$	5,962,828	$	5,978,147

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, 2015
	Less than 12 months				12 months or more				Total
(In thousands)	Gross unrealized losses		Estimated fair value		Gross unrealized losses		Estimated fair value		Gross unrealized losses		Estimated fair value
Held-to-maturity
Municipal securities	$	901	$	55,763	$	155	$	11,681	$	1,056	$	67,444
Available-for-sale
U.S. Government agencies and corporations:
Agency securities	65		34,737		513		137,964		578		172,701
Agency guaranteed mortgage-backed securities	5,361		1,330,271		258		15,351		5,619		1,345,622
Small Business Administration loan-backed securities	4,550		453,651		6,229		452,275		10,779		905,926
Municipal securities	305		34,703		54		4,125		359		38,828
Other debt securities	—		—		2,905		12,097		2,905		12,097
	10,281		1,853,362		9,959		621,812		20,240		2,475,174
Total	$	11,182	$	1,909,125	$	10,114	$	633,493	$	21,296	$	2,542,618

	December 31, 2014
	Less than 12 months				12 months or more				Total
(In thousands)	Gross unrealized losses		Estimated  fair  value		Gross unrealized losses		Estimated  fair  value		Gross unrealized losses		Estimated  fair  value
Held-to-maturity
Municipal securities	$	527	$	62,762	$	277	$	14,003	$	804	$	76,765
Asset-backed securities:
Trust preferred securities – banks and insurance	53		122		40,309		57,186		40,362		57,308
	580		62,884		40,586		71,189		41,166		134,073
Available-for-sale
U.S. Government agencies and corporations:
Agency securities	4,510		295,694		3,833		101,188		8,343		396,882
Agency guaranteed mortgage-backed securities	1,914		425,114		191		12,124		2,105		437,238
Small Business Administration loan-backed securities	5,869		495,817		3,022		175,523		8,891		671,340
Municipal securities	258		36,551		687		4,616		945		41,167
Asset-backed securities:
Trust preferred securities – banks and insurance	—		—		121,984		405,605		121,984		405,605
Other	7		1,607		—		—		7		1,607
	12,558		1,254,783		129,717		699,056		142,275		1,953,839
Money market mutual funds and other	1,044		71,907		—		—		1,044		71,907
	13,602		1,326,690		129,717		699,056		143,319		2,025,746
Total	$	14,182	$	1,389,574	$	170,303	$	770,245	$	184,485	$	2,159,819

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At September 30, 2015 and December 31, 2014, respectively, 146 and 153 HTM and 460 and 458 AFS investment securities were in an unrealized loss position.

Other-Than-Temporary Impairment

Ongoing Policy

We review 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 majority of the investment portfolio are debt securities). Under these circumstances, OTTI is considered to have occurred if (1) we have formed a documented intent to sell identified securities or initiated such sales; (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.

OTTI Conclusions

Our 2014 Annual Report on Form 10-K describes in more detail our OTTI evaluation process. The following summarizes the conclusions from our OTTI evaluation by each security type that has significant gross unrealized losses at September 30, 2015:

OTTI – U.S. Government Agencies and Corporations

Agency Guaranteed Mortgage-Backed Securities: These pass-through securities are comprised largely of fixed and floating-rate residential mortgage-backed securities issued by the Government National Mortgage Association (“GNMA”), the Federal National Mortgage Association, or the Federal Home Loan Mortgage Corporation. They were generally purchased at premiums with maturity dates from 10 to 15 years for fixed-rate securities and 30 years for floating-rate securities. These securities benefit from certain guarantee provisions or, in the case of GNMA, direct U.S. government guarantees. Unrealized losses relate to changes in interest rates subsequent to purchase and are not attributable to credit. At September 30, 2015, we did not have an intent to sell identified securities with unrealized losses or initiate such sales, and we believe it is more likely than not we would not be required to sell such securities before recovery of their amortized cost basis. Therefore, we did not record OTTI for these securities during the third quarter of 2015.

Small Business Administration (“SBA”) Loan-Backed Securities: These securities were generally purchased at premiums with maturities from 5 to 25 years and have principal cash flows guaranteed by the SBA. Unrealized losses relate to changes in interest rates subsequent to purchase and are not attributable to credit. At September 30, 2015, we did not have an intent to sell identified SBA securities with unrealized losses or initiate such sales, and we believe it is more likely than not we would not be required to sell such securities before recovery of their amortized cost basis. Therefore, we did not record OTTI for these securities during the third quarter of 2015.

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The following is a tabular rollforward of the total amount of credit-related OTTI:

(In thousands)	Three Months Ended September 30, 2015						Nine Months Ended September 30, 2015
	HTM		AFS		Total		HTM			AFS			Total
Balance of credit-related OTTI at beginning of period	$	—	$	—	$	—	$	(9,079	)	$	(95,472	)	$	(104,551	)
Reductions for securities sold or paid off during the period	—		—		—		—			104,551			104,551
Reclassification of securities from HTM to AFS	—		—		—		9,079			(9,079		)	—
Balance of credit-related OTTI at end of period	$	—	$	—	$	—	$	—		$	—		$	—

(In thousands)	Three Months Ended September 30, 2014									Nine Months Ended September 30, 2014
	HTM			AFS			Total			HTM			AFS			Total
Balance of credit-related OTTI at beginning of period	$	(9,079	)	$	(163,914	)	$	(172,993	)	$	(9,052	)	$	(176,833	)	$	(185,885	)
Additions recognized in earnings during the period:
Additional credit-related OTTI on securities previously impaired	—			—			—			(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	)

The following summarizes gains and losses, including OTTI, that were recognized in the statement of income:

	Three Months Ended										Nine Months Ended
	September 30, 2015					September 30, 2014					September 30, 2015					September 30, 2014
(In thousands)	Gross gains		Gross losses			Gross gains		Gross losses			Gross gains		Gross losses			Gross gains		Gross losses
Investment securities:
Held-to-maturity	$	—	$	—		$	2	$	—		$	1	$	—		$	2	$	27
Available-for-sale	6		59			5,873		20,063			8,366		147,572			83,466		62,948
Other noninterest-bearing investments	14,267		10,637			5,911		5,184			23,870		11,571			10,568		5,184
	14,273		10,696			11,786		25,247			32,237		159,143			94,036		68,159
Net gains (losses)			$	3,577				$	(13,461	)			$	(126,906	)			$	25,877
Statement of income information:
Net impairment losses on investment securities			$	—				$	—				$	—				$	(27	)
Equity securities gains, net			3,630					440					11,822					3,865
Fixed income securities gains (losses), net			(53		)			(13,901		)			(138,728		)			22,039
Net gains (losses)			$	3,577				$	(13,461	)			$	(126,906	)			$	25,877

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Interest income by security type is as follows:

(In thousands)	Three Months Ended September 30, 2015						Nine Months Ended September 30, 2015
	Taxable		Nontaxable		Total		Taxable		Nontaxable		Total
Investment securities:
Held-to-maturity	$	3,031	$	2,629	$	5,660	$	9,716	$	8,265	$	17,981
Available-for-sale	23,427		699		24,126		64,832		2,047		66,879
Trading	445		—		445		1,653		—		1,653
	$	26,903	$	3,328	$	30,231	$	76,201	$	10,312	$	86,513

(In thousands)	Three Months Ended September 30, 2014						Nine Months Ended September 30, 2014
	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

Investment securities with a carrying value of $1.9 billion at September 30, 2015 and $1.4 billion at December 31, 2014 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.

Private Equity Investments

Effect of Volcker Rule

The VR, as published pursuant to the Dodd-Frank Act in December 2013 and amended in January 2014, significantly restricted certain activities by covered bank holding companies, including restrictions on certain types of securities, proprietary trading, and private equity investing. The Company’s private equity investments (“PEIs”) consist of Small Business Investment Companies (“SBICs”) and non-SBICs. Following the sales of its CDO securities, the only prohibited investments under the VR requiring divestiture by the Company were certain of its PEIs. Of the recorded PEIs of $140 million at September 30, 2015, approximately $24 million remain prohibited by the VR.

As of September 30, 2015, we have sold a total of approximately $17 million of PEIs, including $9 million during the first half of 2015 and $8 million during 2014. None were sold during the third quarter of 2015. All of these sales related to prohibited PEIs. The 2015 sales resulted in insignificant amounts of realized gains or losses. We will dispose of the remaining $24 million of prohibited PEIs before the required deadline. However, the required deadline has been extended to July 21, 2016 from July 21, 2015 and the Federal Reserve has announced its intention to act in 2015 to grant an additional one-year extension to July 21, 2017. See other discussions in Notes 10 and 11.

As discussed in Note 11, we have $48 million at September 30, 2015 of unfunded commitments for PEIs, of which approximately $8 million relate to prohibited PEIs. Until we dispose of the prohibited PEIs, we expect to fund these commitments if and as the capital calls are made, as allowed under the VR.

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6. 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, 2015		December 31, 2014
Loans held for sale	$	139,122	$	132,504
Commercial:
Commercial and industrial	$	13,035,251	$	13,162,955
Leasing	426,781		408,974
Owner occupied	7,141,360		7,351,548
Municipal	600,258		520,887
Total commercial	21,203,650		21,444,364
Commercial real estate:
Construction and land development	2,213,465		1,986,408
Term	8,089,258		8,126,600
Total commercial real estate	10,302,723		10,113,008
Consumer:
Home equity credit line	2,347,061		2,321,150
1-4 family residential	5,268,840		5,200,882
Construction and other consumer real estate	370,015		370,542
Bankcard and other revolving plans	427,849		401,352
Other	192,985		212,360
Total consumer	8,606,750		8,506,286
Total loans	$	40,113,123	$	40,063,658

Loan balances are presented net of unearned income and fees, which amounted to $144.1 million at September 30, 2015 and $144.7 million at December 31, 2014.

Owner occupied and commercial real estate (“CRE”) loans include unamortized premiums of approximately $28.8 million at September 30, 2015 and $36.5 million at December 31, 2014.

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 $383.1 million at September 30, 2015 and $484.9 million at December 31, 2014.

Loans with a carrying value of approximately $22.3 billion at September 30, 2015 and $22.5 billion at December 31, 2014 have been pledged at the Federal Reserve and various Federal Home Loan Banks (“FHLBs”) as collateral for potential borrowings.

We sold loans with a carrying value of $434.1 million and $1,070.2 million for the three and nine months endedSeptember 30, 2015, and $341.3 million and $939.0 million, for the three and nine months endedSeptember 30, 2014, 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 and the guaranteed portion of SBA loans. The principal balance of sold loans for which we retain servicing was approximately $1.2 billion at both September 30, 2015 and December 31, 2014.

Amounts added to loans held for sale during these periods were $442.4 million and $1,111.0 million for the three and nine months endedSeptember 30, 2015, and $297.8 million and $894.9 million for the three and nine months endedSeptember 30, 2014, respectively. Income from loans sold, excluding servicing, was $5.0 million and $13.9

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million for the three and nine months endedSeptember 30, 2015, and $4.2 million and $11.3 million for the three and nine months endedSeptember 30, 2014, respectively.

Since 2009, CB&T and NSB have had loss sharing agreements with the Federal Deposit Insurance Corporation (“FDIC”), which provided indemnification for credit losses of acquired loans and foreclosed assets up to specified thresholds. The last of the agreements for commercial loans, which comprised the major portion of the acquired portfolio, expired as of September 30, 2014. The agreements for 1-4 family residential loans will expire in 2019. In previous periods, the FDIC-supported loan balances were presented separately in this footnote and in other disclosures, and included purchased credit-impaired (“PCI”) loans, as subsequently discussed in Purchased Loans. Due to declining balances, for all periods presented herein, the FDIC-supported/PCI loans have been reclassified to their respective loan segments and classes.

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 and CRE loans are charged off or charged down when 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 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 their experience and 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. When long-term average losses exceed those losses estimated through roll rates, we use long-term average loss rates for the applicable pools. 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.

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:

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• 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 changes made by management in its assessment of these factors, the extent these factors are already reflected in historic loss rates, and the extent changes in these factors diverge from one to another. We also consider the uncertainty inherent in the estimation process when evaluating the ALLL.

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.

Changes in the allowance for credit losses are summarized as follows:
	Three Months Ended September 30, 2015
(In thousands)	Commercial			Commercial real estate			Consumer			Total
Allowance for loan losses
Balance at beginning of period	$	437,770		$	125,796		$	45,809		$	609,375
Additions:
Provision for loan losses	22,417			(6,621		)	2,466			18,262
Adjustment for FDIC-supported/PCI loans	—			—			—			—
Deductions:
Gross loan and lease charge-offs	(36,961		)	(1,068		)	(4,330		)	(42,359		)
Recoveries	4,471			4,162			2,529			11,162
Net loan and lease charge-offs	(32,490		)	3,094			(1,801		)	(31,197		)
Balance at end of period	$	427,697		$	122,269		$	46,474		$	596,440
Reserve for unfunded lending commitments
Balance at beginning of period	$	60,774		$	18,639		$	548		$	79,961
Provision charged (credited) to earnings	2,808			(1,467		)	87			1,428
Balance at end of period	$	63,582		$	17,172		$	635		$	81,389
Total allowance for credit losses at end of period
Allowance for loan losses	$	427,697		$	122,269		$	46,474		$	596,440
Reserve for unfunded lending commitments	63,582			17,172			635			81,389
Total allowance for credit losses	$	491,279		$	139,441		$	47,109		$	677,829

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	Nine Months Ended September 30, 2015
(In thousands)	Commercial			Commercial real estate			Consumer			Total
Allowance for loan losses
Balance at beginning of period	$	412,514		$	145,009		$	47,140		$	604,663
Additions:
Provision for loan losses	53,292			(38,491		)	2,533			17,334
Adjustment for FDIC-supported/PCI loans	(57		)	57			—			—
Deductions:
Gross loan and lease charge-offs	(76,734		)	(5,637		)	(11,224		)	(93,595		)
Recoveries	38,682			21,331			8,025			68,038
Net loan and lease charge-offs	(38,052		)	15,694			(3,199		)	(25,557		)
Balance at end of period	$	427,697		$	122,269		$	46,474		$	596,440
Reserve for unfunded lending commitments
Balance at beginning of period	$	58,931		$	21,517		$	628		$	81,076
Provision charged (credited) to earnings	4,651			(4,345		)	7			313
Balance at end of period	$	63,582		$	17,172		$	635		$	81,389
Total allowance for credit losses at end of period
Allowance for loan losses	$	427,697		$	122,269		$	46,474		$	596,440
Reserve for unfunded lending commitments	63,582			17,172			635			81,389
Total allowance for credit losses	$	491,279		$	139,441		$	47,109		$	677,829

	Three Months Ended September 30, 2014
(In thousands)	Commercial			Commercial real estate			Consumer			Total
Allowance for loan losses
Balance at beginning of period	$	442,965		$	187,940		$	45,002		$	675,907
Additions:
Provision for loan losses	(19,960		)	(34,187		)	(496		)	(54,643		)
Adjustment for FDIC-supported/PCI loans	(25		)	—			—			(25		)
Deductions:
Gross loan and lease charge-offs	(20,084		)	(3,320		)	(3,067		)	(26,471		)
Recoveries	9,149			3,332			3,028			15,509
Net loan and lease charge-offs	(10,935		)	12			(39		)	(10,962		)
Balance at end of period	$	412,045		$	153,765		$	44,467		$	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	$	412,045		$	153,765		$	44,467		$	610,277
Reserve for unfunded lending commitments	54,452			24,299			626			79,377
Total allowance for credit losses	$	466,497		$	178,064		$	45,093		$	689,654

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	Nine Months Ended September 30, 2014
(In thousands)	Commercial			Commercial real estate			Consumer			Total
Allowance for loan losses
Balance at beginning of period	$	469,213		$	216,012		$	61,066		$	746,291
Additions:
Provision for loan losses	(38,274		)	(57,350		)	(14,045		)	(109,669		)
Adjustment for FDIC-supported/PCI loans	(1,190		)	—			(96		)	(1,286		)
Deductions:
Gross loan and lease charge-offs	(45,903		)	(14,135		)	(10,628		)	(70,666		)
Recoveries	28,199			9,238			8,170			45,607
Net loan and lease charge-offs	(17,704		)	(4,897		)	(2,458		)	(25,059		)
Balance at end of period	$	412,045		$	153,765		$	44,467		$	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	$	412,045		$	153,765		$	44,467		$	610,277
Reserve for unfunded lending commitments	54,452			24,299			626			79,377
Total allowance for credit losses	$	466,497		$	178,064		$	45,093		$	689,654

The ALLL and outstanding loan balances according to the Company’s impairment method are summarized as follows:
	September 30, 2015
(In thousands)	Commercial		Commercial real estate		Consumer		Total
Allowance for loan losses:
Individually evaluated for impairment	$	32,191	$	2,898	$	11,014	$	46,103
Collectively evaluated for impairment	394,836		119,286		35,010		549,132
Purchased loans with evidence of credit deterioration	670		85		450		1,205
Total	$	427,697	$	122,269	$	46,474	$	596,440
Outstanding loan balances:
Individually evaluated for impairment	$	279,928	$	122,063	$	92,612	$	494,603
Collectively evaluated for impairment	20,859,442		10,122,697		8,503,160		39,485,299
Purchased loans with evidence of credit deterioration	64,280		57,963		10,978		133,221
Total	$	21,203,650	$	10,302,723	$	8,606,750	$	40,113,123

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	December 31, 2014
(In thousands)	Commercial		Commercial real estate		Consumer		Total
Allowance for loan losses:
Individually evaluated for impairment	$	28,627	$	4,027	$	9,059	$	41,713
Collectively evaluated for impairment	382,552		140,090		37,508		560,150
Purchased loans with evidence of credit deterioration	1,335		892		573		2,800
Total	$	412,514	$	145,009	$	47,140	$	604,663
Outstanding loan balances:
Individually evaluated for impairment	$	259,207	$	167,435	$	95,267	$	521,909
Collectively evaluated for impairment	21,105,217		9,861,862		8,395,371		39,362,450
Purchased loans with evidence of credit deterioration	79,940		83,711		15,648		179,299
Total	$	21,444,364	$	10,113,008	$	8,506,286	$	40,063,658

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, 2015		December 31, 2014
Commercial:
Commercial and industrial	$	167,136	$	105,591
Leasing	306		295
Owner occupied	76,624		87,243
Municipal	967		1,056
Total commercial	245,033		194,185
Commercial real estate:
Construction and land development	15,202		23,880
Term	39,053		25,107
Total commercial real estate	54,255		48,987
Consumer:
Home equity credit line	9,792		11,430
1-4 family residential	48,592		49,861
Construction and other consumer real estate	765		1,735
Bankcard and other revolving plans	563		196
Other	272		254
Total consumer loans	59,984		63,476
Total	$	359,272	$	306,648

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Past due loans (accruing and nonaccruing) are summarized as follows:
	September 30, 2015
(In thousands)	Current		30-89 days past due		90+ days past due		Total past due		Total loans		Accruing loans 90+ days past due		Nonaccrual loans that are current 1
Commercial:
Commercial and industrial	$	12,909,622	$	79,246	$	46,383	$	125,629	$	13,035,251	$	4,951	$	90,584
Leasing	423,071		3,557		153		3,710		426,781		—		55
Owner occupied	7,077,386		33,198		30,776		63,974		7,141,360		5,443		46,283
Municipal	600,210		48		—		48		600,258		—		967
Total commercial	21,010,289		116,049		77,312		193,361		21,203,650		10,394		137,889
Commercial real estate:
Construction and land development	2,195,193		12,447		5,825		18,272		2,213,465		2,296		10,914
Term	8,039,923		15,578		33,757		49,335		8,089,258		20,503		23,188
Total commercial real estate	10,235,116		28,025		39,582		67,607		10,302,723		22,799		34,102
Consumer:
Home equity credit line	2,336,740		4,694		5,627		10,321		2,347,061		—		2,592
1-4 family residential	5,231,005		10,137		27,698		37,835		5,268,840		877		18,739
Construction and other consumer real estate	364,283		5,524		208		5,732		370,015		—		401
Bankcard and other revolving plans	425,041		1,621		1,187		2,808		427,849		787		114
Other	192,042		877		66		943		192,985		—		46
Total consumer loans	8,549,111		22,853		34,786		57,639		8,606,750		1,664		21,892
Total	$	39,794,516	$	166,927	$	151,680	$	318,607	$	40,113,123	$	34,857	$	193,883

	December 31, 2014
(In thousands)	Current		30-89 days past due		90+ days past due		Total past due		Total loans		Accruing loans 90+ days past due		Nonaccrual loans that are current 1
Commercial:
Commercial and industrial	$	13,092,731	$	28,295	$	41,929	$	70,224	$	13,162,955	$	4,677	$	64,385
Leasing	408,724		225		25		250		408,974		—		270
Owner occupied	7,275,842		29,182		46,524		75,706		7,351,548		3,334		39,649
Municipal	520,887		—		—		—		520,887		—		1,056
Total commercial	21,298,184		57,702		88,478		146,180		21,444,364		8,011		105,360
Commercial real estate:
Construction and land development	1,972,206		2,711		11,491		14,202		1,986,408		92		12,481
Term	8,082,940		14,415		29,245		43,660		8,126,600		19,700		13,787
Total commercial real estate	10,055,146		17,126		40,736		57,862		10,113,008		19,792		26,268
Consumer:
Home equity credit line	2,309,967		4,503		6,680		11,183		2,321,150		1		1,779
1-4 family residential	5,163,610		12,416		24,856		37,272		5,200,882		318		20,599
Construction and other consumer real estate	359,723		9,675		1,144		10,819		370,542		160		608
Bankcard and other revolving plans	397,882		2,425		1,045		3,470		401,352		946		80
Other	211,560		644		156		800		212,360		—		84
Total consumer loans	8,442,742		29,663		33,881		63,544		8,506,286		1,425		23,150
Total	$	39,796,072	$	104,491	$	163,095	$	267,586	$	40,063,658	$	29,228	$	154,778

¹  Represents nonaccrual loans that are not past due more than 30 days; however, full payment of principal and interest is still not expected.

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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 $750,000based 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.

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Outstanding loan balances (accruing and nonaccruing) categorized by these credit quality indicators are summarized as follows:

	September 30, 2015
(In thousands)	Pass		Special Mention		Sub- standard		Doubtful		Total loans		Total allowance
Commercial:
Commercial and industrial	$	12,037,219	$	281,696	$	709,086	$	7,250	$	13,035,251
Leasing	400,233		3,015		23,533		—		426,781
Owner occupied	6,684,216		142,204		314,940		—		7,141,360
Municipal	599,243		48		967		—		600,258
Total commercial	19,720,911		426,963		1,048,526		7,250		21,203,650		$	427,697
Commercial real estate:
Construction and land development	2,166,381		19,138		27,946		—		2,213,465
Term	7,862,956		59,689		166,613		—		8,089,258
Total commercial real estate	10,029,337		78,827		194,559		—		10,302,723		122,269
Consumer:
Home equity credit line	2,333,240		—		13,821		—		2,347,061
1-4 family residential	5,214,015		—		54,825		—		5,268,840
Construction and other consumer real estate	368,363		—		1,652		—		370,015
Bankcard and other revolving plans	425,979		—		1,870		—		427,849
Other	192,564		—		421		—		192,985
Total consumer loans	8,534,161		—		72,589		—		8,606,750		46,474
Total	$	38,284,409	$	505,790	$	1,315,674	$	7,250	$	40,113,123	$	596,440

	December 31, 2014
(In thousands)	Pass		Special Mention		Sub- standard		Doubtful		Total loans		Total allowance
Commercial:
Commercial and industrial	$	12,515,846	$	209,215	$	426,002	$	11,892	$	13,162,955
Leasing	399,032		4,868		5,074		—		408,974
Owner occupied	6,844,310		168,423		338,815		—		7,351,548
Municipal	518,513		1,318		1,056		—		520,887
Total commercial	20,277,701		383,824		770,947		11,892		21,444,364		$	412,514
Commercial real estate:
Construction and land development	1,925,685		8,464		52,259		—		1,986,408
Term	7,802,571		96,347		223,324		4,358		8,126,600
Total commercial real estate	9,728,256		104,811		275,583		4,358		10,113,008		145,009
Consumer:
Home equity credit line	2,304,352		—		16,798		—		2,321,150
1-4 family residential	5,138,660		—		62,222		—		5,200,882
Construction and other consumer real estate	367,932		—		2,610		—		370,542
Bankcard and other revolving plans	399,446		—		1,906		—		401,352
Other	211,811		—		549		—		212,360
Total consumer loans	8,422,201		—		84,085		—		8,506,286		47,140
Total	$	38,428,158	$	488,635	$	1,130,615	$	16,250	$	40,063,658	$	604,663

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, or if the loan is no longer reported as a TDR, we individually evaluate the loan for impairment and estimate a specific

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reserve for the loan for all portfolio segments under applicable accounting guidance. Smaller nonaccrual loans are pooled for ALLL estimation purposes. PCI loans 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 endedSeptember 30, 2015 and 2014 was not significant.

Information on impaired loans individually evaluated is summarized as follows at September 30, 2015 and December 31, 2014, including the average recorded investment and interest income recognized for the three and nine months endedSeptember 30, 2015 and 2014:

	September 30, 2015
(In thousands)	Unpaid principal balance		Recorded investment				Total recorded investment		Related allowance
			with no allowance		with allowance
Commercial:
Commercial and industrial	$	245,404	$	37,843	$	156,665	$	194,508	$	26,888
Owner occupied	151,243		83,527		48,400		131,927		5,091
Municipal	1,446		967		—		967		—
Total commercial	398,093		122,337		205,065		327,402		31,979
Commercial real estate:
Construction and land development	47,876		7,486		23,800		31,286		1,068
Term	138,865		90,294		27,856		118,150		1,463
Total commercial real estate	186,741		97,780		51,656		149,436		2,531
Consumer:
Home equity credit line	28,358		20,672		4,703		25,375		419
1-4 family residential	72,855		29,257		40,465		69,722		10,090
Construction and other consumer real estate	2,966		1,069		1,106		2,175		181
Other	3,843		36		3,162		3,198		294
Total consumer loans	108,022		51,034		49,436		100,470		10,984
Total	$	692,856	$	271,151	$	306,157	$	577,308	$	45,494

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	December 31, 2014
(In thousands)	Unpaid principal balance		Recorded investment				Total recorded investment		Related allowance
			with no allowance		with allowance
Commercial:
Commercial and industrial	$	185,520	$	43,257	$	103,565	$	146,822	$	22,852
Owner occupied	198,231		83,179		86,382		169,561		6,087
Municipal	1,535		1,056		—		1,056		—
Total commercial	385,286		127,492		189,947		317,439		28,939
Commercial real estate:
Construction and land development	60,993		16,500		26,977		43,477		1,773
Term	203,788		96,351		63,740		160,091		2,345
Total commercial real estate	264,781		112,851		90,717		203,568		4,118
Consumer:
Home equity credit line	30,209		14,798		11,883		26,681		437
1-4 family residential	86,575		37,096		35,831		72,927		8,494
Construction and other consumer real estate	3,902		1,449		1,410		2,859		233
Other	6,580		—		5,254		5,254		133
Total consumer loans	127,266		53,343		54,378		107,721		9,297
Total	$	777,333	$	293,686	$	335,042	$	628,728	$	42,354

	Three Months Ended September 30, 2015				Nine Months Ended September 30, 2015
(In thousands)	Average recorded investment		Interest income recognized		Average recorded investment		Interest income recognized
Commercial:
Commercial and industrial	$	191,642	$	1,314	$	158,825	$	5,525
Owner occupied	138,194		2,752		135,212		9,706
Municipal	978		—		1,007		—
Total commercial	330,814		4,066		295,044		15,231
Commercial real estate:
Construction and land development	31,506		499		31,920		2,691
Term	119,694		3,705		124,446		13,383
Total commercial real estate	151,200		4,204		156,366		16,074
Consumer:
Home equity credit line	25,095		401		24,329		1,206
1-4 family residential	90,240		398		91,671		1,803
Construction and other consumer real estate	5,540		32		2,342		91
Bankcard and other revolving plans	—		1		1		101
Other	36		177		4,109		692
Total consumer loans	120,911		1,009		122,452		3,893
Total	$	602,925	$	9,279	$	573,862	$	35,198

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	Three Months Ended September 30, 2014				Nine Months Ended September 30, 2014
(In thousands)	Average recorded investment		Interest income recognized		Average recorded investment		Interest income recognized
Commercial:
Commercial and industrial	$	186,026	$	2,335	$	180,130	$	8,819
Owner occupied	232,484		4,514		235,380		13,774
Municipal	8,798		—		9,343		—
Total commercial	427,308		6,849		424,853		22,593
Commercial real estate:
Construction and land development	59,735		515		62,404		5,398
Term	225,536		5,670		248,587		26,118
Total commercial real estate	285,271		6,185		310,991		31,516
Consumer:
Home equity credit line	26,328		369		25,756		1,139
1-4 family residential	81,116		556		81,168		1,583
Construction and other consumer real estate	3,226		43		3,112		115
Bankcard and other revolving plans	—		1		3		2
Other	6,284		384		7,333		1,315
Total consumer loans	116,954		1,353		117,372		4,154
Total	$	829,533	$	14,387	$	853,216	$	58,263

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.

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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, 2015
	Recorded investment resulting from the following modification types:
(In thousands)	Interest rate below market		Maturity or term extension		Principal forgiveness		Payment deferral		Other1		Multiple modification types2		Total
Accruing
Commercial:
Commercial and industrial	$	455	$	3,906	$	14	$	108	$	223	$	35,228	$	39,934
Owner occupied	2,034		701		938		—		8,151		17,172		28,996
Total commercial	2,489		4,607		952		108		8,374		52,400		68,930
Commercial real estate:
Construction and land development	97		—		—		—		—		13,431		13,528
Term	4,758		766		170		975		2,409		20,825		29,903
Total commercial real estate	4,855		766		170		975		2,409		34,256		43,431
Consumer:
Home equity credit line	192		1,060		11,143		—		164		2,360		14,919
1-4 family residential	2,482		358		7,388		435		3,474		34,901		49,038
Construction and other consumer real estate	177		488		—		—		—		1,153		1,818
Total consumer loans	2,851		1,906		18,531		435		3,638		38,414		65,775
Total accruing	10,195		7,279		19,653		1,518		14,421		125,070		178,136
Nonaccruing
Commercial:
Commercial and industrial	90		471		—		2,018		5,351		37,950		45,880
Owner occupied	1,220		1,742		—		5,833		36		9,060		17,891
Municipal	—		967		—		—		—		—		967
Total commercial	1,310		3,180		—		7,851		5,387		47,010		64,738
Commercial real estate:
Construction and land development	10,512		354		—		—		3,197		968		15,031
Term	2,456		—		833		—		2,899		9,919		16,107
Total commercial real estate	12,968		354		833		—		6,096		10,887		31,138
Consumer:
Home equity credit line	8		514		512		58		—		48		1,140
1-4 family residential	—		268		2,085		173		1,227		7,325		11,078
Construction and other consumer real estate	—		143		18		60		—		72		293
Total consumer loans	8		925		2,615		291		1,227		7,445		12,511
Total nonaccruing	14,286		4,459		3,448		8,142		12,710		65,342		108,387
Total	$	24,481	$	11,738	$	23,101	$	9,660	$	27,131	$	190,412	$	286,523

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	December 31, 2014
	Recorded investment resulting from the following modification types:
(In thousands)	Interest rate below market		Maturity or term extension		Principal forgiveness		Payment deferral		Other1		Multiple modification types2		Total
Accruing
Commercial:
Commercial and industrial	$	2,611	$	6,509	$	18	$	3,203	$	3,855	$	34,585	$	50,781
Owner occupied	19,981		1,124		960		1,251		10,960		17,505		51,781
Total commercial	22,592		7,633		978		4,454		14,815		52,090		102,562
Commercial real estate:
Construction and land development	—		—		—		—		521		19,854		20,375
Term	7,328		9,027		179		3,153		2,546		39,007		61,240
Total commercial real estate	7,328		9,027		179		3,153		3,067		58,861		81,615
Consumer:
Home equity credit line	742		70		11,320		—		166		1,281		13,579
1-4 family residential	2,425		552		6,828		446		753		34,719		45,723
Construction and other consumer real estate	290		422		42		90		—		1,227		2,071
Total consumer loans	3,457		1,044		18,190		536		919		37,227		61,373
Total accruing	33,377		17,704		19,347		8,143		18,801		148,178		245,550
Nonaccruing
Commercial:
Commercial and industrial	442		576		—		611		5,199		20,410		27,238
Owner occupied	2,714		1,219		—		883		2,852		12,040		19,708
Municipal	—		1,056		—		—		—		—		1,056
Total commercial	3,156		2,851		—		1,494		8,051		32,450		48,002
Commercial real estate:
Construction and land development	11,080		68		—		93		3,300		6,427		20,968
Term	2,851		—		—		—		277		4,607		7,735
Total commercial real estate	13,931		68		—		93		3,577		11,034		28,703
Consumer:
Home equity credit line	—		—		420		203		—		399		1,022
1-4 family residential	3,378		1,029		1,951		191		3,527		9,413		19,489
Construction and other consumer real estate	—		463		—		—		—		100		563
Total consumer loans	3,378		1,492		2,371		394		3,527		9,912		21,074
Total nonaccruing	20,465		4,411		2,371		1,981		15,155		53,396		97,779
Total	$	53,842	$	22,115	$	21,718	$	10,124	$	33,956	$	201,574	$	343,329

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.

Unfunded lending commitments on TDRs amounted to approximately $3.6 million at September 30, 2015 and $6.1 millionat December 31, 2014.

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The total recorded investment of all TDRs in which interest rates were modified below market was $190.7 million at September 30, 2015 and $219.3 million at December 31, 2014. 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 September 30,						Nine Months Ended September 30,
(In thousands)	2015			2014			2015			2014
Commercial:
Commercial and industrial	$	(67	)	$	(36	)	$	(189	)	$	(34	)
Owner occupied	(46		)	(124		)	(230		)	(400		)
Total commercial	(113		)	(160		)	(419		)	(434		)
Commercial real estate:
Construction and land development	(26		)	(48		)	(88		)	(154		)
Term	(84		)	(150		)	(295		)	(435		)
Total commercial real estate	(110		)	(198		)	(383		)	(589		)
Consumer:
Home equity credit line	—			(1		)	(1		)	(4		)
1-4 family residential	(260		)	(276		)	(800		)	(863		)
Construction and other consumer real estate	(7		)	(8		)	(21		)	(25		)
Total consumer loans	(267		)	(285		)	(822		)	(892		)
Total decrease to interest income1	$	(490	)	$	(643	)	$	(1,624	)	$	(1,915	)

¹  Calculated 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 September 30, 2015						Nine Months Ended September 30, 2015
(In thousands)	Accruing		Nonaccruing		Total		Accruing		Nonaccruing		Total
Commercial:
Commercial and industrial	$	—	$	9	$	9	$	—	$	104	$	104
Owner occupied	—		—		—		—		943		943
Total commercial	—		9		9		—		1,047		1,047
Commercial real estate:
Construction and land development	—		—		—		—		—		—
Term	—		—		—		—		833		833
Total commercial real estate	—		—		—		—		833		833
Consumer:
Home equity credit line	—		—		—		—		—		—
1-4 family residential	—		595		595		—		595		595
Construction and other consumer real estate	—		—		—		—		—		—
Total consumer loans	—		595		595		—		595		595
Total	$	—	$	604	$	604	$	—	$	2,475	$	2,475

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	Three Months Ended September 30, 2014						Nine Months Ended September 30, 2014
(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
Commercial real estate:
Construction and land development	—		—		—		—		—		—
Term	—		—		—		—		—		—
Total commercial real estate	—		—		—		—		—		—
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

Note: Total loans modified as TDRs during the 12 months previous to September 30, 2015 and 2014 were $93.4 millionand $97.3 million, respectively.

As of September 30, 2015, the amount of foreclosed residential real estate property held by the Company was approximately $1.6 million, and the recorded investment in consumer mortgage loans collateralized by residential real estate property that are in the process of foreclosure was approximately $9.3 million.

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, there are certain significant concentrations 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 and enterprise value lending, municipal lending, and energy-related lending. All of these limits are continually monitored and revised as necessary.

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

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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.

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, 2015			December 31, 2014
Commercial		$	78,180		$	104,942
Commercial real estate		81,012			118,217
Consumer		12,204			17,910
Outstanding balance		$	171,396		$	241,069
Carrying amount		$	133,221		$	179,299
Less ALLL		1,205			2,800
Carrying amount, net		$	132,016		$	176,499

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. There were no amounts of these loans at September 30, 2015 and $5.3 million at December 31, 2014.

Changes in the accretable yield for PCI loans were as follows: 

(In thousands)	Three Months Ended September 30,						Nine Months Ended September 30,
	2015			2014			2015			2014
Balance at beginning of period	$	46,702		$	60,834		$	45,055		$	77,528
Accretion	(7,535		)	(10,279		)	(28,792		)	(46,767		)
Reclassification from nonaccretable difference	1,005			2,955			18,865			17,406
Disposals and other	1,126			(38		)	6,170			5,305
Balance at end of period	$	41,298		$	53,472		$	41,298		$	53,472

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 included in the overall ALLL in the balance sheet.

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During the three and nine months endedSeptember 30, 2015, we adjusted the ALLL for acquired loans by recording a provision for loan losses of $0.8 million and $0.3 million, respectively. No adjustment was made during the three months endedSeptember 30, 2014 and $(2.5) million was made during the nine months endedSeptember 30, 2014. The provision is net of the ALLL reversals discussed subsequently.

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 endedSeptember 30, total reversals to the ALLL, including the impact of increases in estimated cash flows, were $0.6 million and $3.1 million in 2015 and $0.8 million and $4.4 million in 2014, 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.

For the three and nine months endedSeptember 30, the impact of increased cash flow estimates recognized in the statement of income for acquired loans with no ALLL was approximately $5.4 million and $22.1 million in 2015and $7.7 million and $37.9 million in 2014, respectively, of additional interest income.

7. DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES

Objectives

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 commercial loans.

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.

Accounting

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 cash flows, or other types of forecasted transactions, are considered cash flow hedges.

For derivatives designated as fair value hedges, 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 years, we used fair value hedges to manage interest rate

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exposure to certain long-term debt. These hedges have been terminated and their remaining balances are being amortized into earnings, as discussed subsequently.

For derivatives designated as cash flow hedges, the effective portion of changes in the fair value of the derivative are 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.

The remaining balances of any derivative instruments terminated prior to maturity, including amounts in accumulated other comprehensive income (“AOCI”) for swap hedges, are accreted or amortized to interest income or expense over the period 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, 2015, we estimate that an additional$11.6 millionwill be reclassified.

Collateral and Credit Risk

Exposure to credit risk arises from the possibility of nonperformance by counterparties. Financial institutions which are well capitalized and well established are the counterparties for those derivatives entered into for asset liability management and to offset derivatives sold to our customers. The Company reduces its counterparty exposure for derivative contracts by centrally clearing all eligible derivatives.

For those derivatives that are not centrally cleared, the counterparties are typically financial institutions or customers of the Company. For those that are financial institutions, we manage our credit exposure through the use of a Credit Support Annex (“CSA”) to International Swaps and Derivative Association (“ISDA”) master agreements. Eligible collateral types are documented by the CSA and controlled under the Company’s general credit policies. They are typically monitored on a daily basis. A valuation haircut policy reflects the fact that collateral may fall in value between the date the collateral is called and the date of liquidation or enforcement. In practice, all of the Company’s collateral held as credit risk mitigation under a CSA is cash.

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 offset through matching derivative contracts, such that the Company minimizes its interest rate risk exposure resulting from such transactions. Most of these customers do not have the capability for centralized clearing. Therefore we manage the credit risk through loan underwriting which includes a credit risk exposure formula for the swap, the same collateral and guarantee protection applicable to the loan and credit approvals, limits, and monitoring procedures. Fee income from customer swaps is included in other service charges, commissions and fees. No significant 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. See Note 6 for further discussion of our underwriting, collateral requirements, and other procedures used to address credit risk.

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, 2015, the fair value of our derivative liabilities was $86.4 million, for which we were required to pledge cash collateral of approximately $61.0 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, 2015, the additional amount of

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collateral we could be required to pledge is approximately $1.9 million. As a result of 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.

Derivative Amounts

Selected information with respect to notional amounts and recorded gross fair values at September 30, 2015 and December 31, 2014, and the related gain (loss) of derivative instruments for the three and nine months endedSeptember 30, 2015 and 2014 is summarized as follows:

	September 30, 2015						December 31, 2014
	Notional amount		Fair value				Notional amount		Fair value
(In thousands)			Other assets		Other liabilities				Other assets		Other liabilities
Derivatives designated as hedging instruments
Asset derivatives
Cash flow hedges:
Interest rate swaps	$	1,387,500	$	17,367	$	—	$	275,000	$	1,508	$	123
Total derivatives designated as hedging instruments	1,387,500		17,367		—		275,000		1,508		123
Derivatives not designated as hedging instruments
Interest rate swaps for customers 2	3,237,694		66,805		69,991		2,770,052		48,287		50,669
Foreign exchange	340,818		18,947		16,372		443,721		16,625		15,272
Total derivatives not designated as hedging instruments	3,578,512		85,752		86,363		3,213,773		64,912		65,941
Total derivatives	$	4,966,012	$	103,119	$	86,363	$	3,488,773	$	66,420	$	66,064

	Three Months Ended September 30, 2015								Nine Months Ended September 30, 2015
	Amount of derivative gain (loss) recognized/reclassified
(In thousands)	OCI		Reclassified from AOCI to interest income 3		Noninterest income (expense)		Offset to interest expense		OCI		Reclassified from AOCI to interest income 3		Noninterest income (expense)		Offset to interest expense
Derivatives designated as hedging instruments
Asset derivatives
Cash flow hedges 1:
Interest rate swaps	$	17,343	$	2,957					$	21,172	$	5,191
	17,343		2,957						21,172		5,191
Liability derivatives
Fair value hedges:
Terminated swaps on long-term debt							$	431							$	1,364
Total derivatives designated as hedging instruments	17,343		2,957				431		21,172		5,191				1,364
Derivatives not designated as hedging instruments
Interest rate swaps for customers 2					$	939							$	5,329
Futures contracts					1								2
Foreign exchange					2,506								6,938
Total derivatives not designated as hedging instruments					3,446								12,269
Total derivatives	$	17,343	$	2,957	$	3,446	$	431	$	21,172	$	5,191	$	12,269	$	1,364

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	Three Months Ended September 30, 2014									Nine Months Ended September 30, 2014
	Amount of derivative gain (loss) recognized/reclassified
(In thousands)	OCI			Reclassified from AOCI to interest income 3		Noninterest income (expense)		Offset to interest expense		OCI		Reclassified from AOCI to interest income 3		Noninterest income (expense)			Offset to interest expense
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

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 AOCI represent the effective portion of the derivative gain.

²  Notional amounts include both the customer swaps and the offsetting derivative contracts.

³  Amounts for the three and nine months endedSeptember 30, of $3.0 million and $5.2 millionin 2015, and $0.8 million and $1.7 million in 2014, respectively, are the amounts of reclassification to earnings from AOCI presented in Note 8.

At September 30,2015, the fair value of derivative assets was reduced by a net credit valuation adjustment of $3.0 million. The adjustment for derivative liabilities was not significant. At September 30,2014, these same adjustments were $1.7 million and $0.3 million, respectively. These adjustments are required to reflect both our own nonperformance risk and the respective counterparty’s nonperformance risk.

8. DEBT AND SHAREHOLDERS’ EQUITY

Long-term debt is summarized as follows:

(In thousands)	September 30, 2015		December 31, 2014
Junior subordinated debentures related to trust preferred securities	$	164,950	$	168,043
Convertible subordinated notes	70,119		132,838
Subordinated notes	302,102		335,798
Senior notes	406,631		432,385
FHLB advances	—		22,156
Capital lease obligations	950		1,062
Total	$	944,752	$	1,092,282

The preceding carrying values represent the par value of the debt adjusted for any unamortized premium or discount or other basis adjustments, including the value of associated hedges.

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Debt Redemptions and Maturities

During the third quarter of 2015, approximately $109 million carrying value of 6.0% subordinated and convertible subordinated notes matured. During the first half of 2015, we redeemed approximately $27 million of long-term senior notes at their initial call dates, and we redeemed $3.1 million of trust preferred securities and the entire $22 million of FHLB advances; the FHLB redemption resulted in debt extinguishment cost of $2.4 million.

On November 16, 2015, approximately $122 million carrying value at September 30, 2015 of 5.5% subordinated and convertible subordinated notes will mature.

Preferred Stock

On October, 19 2015, we announced the commencement of a $180 million cash tender offer to purchase certain outstanding preferred stock and depositary shares. The tender offer will expire on November 16, 2015.

Basel III Capital Framework

Effective January 1, 2015, we adopted the new Basel III capital framework that was issued by the Federal Reserve for U.S. banking organizations. We adopted the new capital rules on a 2015 phase-in basis and will adopt the fully phased-in requirements effective January 1, 2019. During the first quarter of 2015, we made the “opt-out” election with respect to the regulatory capital treatment of AOCI under the Basel III framework.

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.

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, 2015
Balance at December 31, 2014		$	(91,921	)		$	2,226		$	(38,346	)	$	(128,041	)
Other comprehensive income before reclassifications, net of tax		15,398				13,035			—			28,433
Amounts reclassified from AOCI, net of tax		85,845				(3,212		)	—			82,633
Other comprehensive income		101,243				9,823			—			111,066
Balance at September 30, 2015		$	9,322			$	12,049		$	(38,346	)	$	(16,975	)
Income tax expense included in other comprehensive income		$	65,549			$	6,311		$	—		$	71,860
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

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	Amounts reclassified from AOCI 1												Statement of income (SI) Balance sheet (BS)
(In thousands)	Three Months Ended September 30,						Nine Months Ended September 30,
Details about AOCI components	2015			2014			2015			2014				Affected line item
Net realized gains (losses) on investment securities	$	(53	)	$	(13,901	)	$	(138,728	)	$	22,039		SI	Fixed income securities gains (losses), net
Income tax expense (benefit)	(20		)	(6,015		)	(52,883		)	1,981
	(33		)	(7,886		)	(85,845		)	20,058
Net unrealized losses on investment securities	—			—			—			(27		)	SI	Net impairment losses on investment securities
Income tax benefit	—			—			—			(10		)
	—			—			—			(17		)
Accretion of securities with noncredit-related impairment losses not expected to be sold	—			(467		)	—			(1,411		)	BS	Investment securities, held-to-maturity
Deferred income taxes	—			191			—			576			BS	Other assets
	$	(33	)	$	(8,162	)	$	(85,845	)	$	19,206
Net unrealized gains on derivative instruments	$	2,957		$	770		$	5,191		$	1,698		SI	Interest and fees on loans
Income tax expense	1,127			307			1,979			677
	$	1,830		$	463		$	3,212		$	1,021

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.

9. INCOME TAXES

The effective income tax rate of 28.8% for the third quarter of 2015 was lower than the 2014 third quarter rate of 35.6%, primarily due to the recognition of tax credits for certain research and development initiatives and for a project related to alternative energy that was placed in service during the third quarter of 2015. On a year-to-date basis, the 2015 tax rate of 32.0% was lower than the 2014 rate of 36.1% due primarily to the tax credit projects and to an increase in the proportion of nontaxable items relative to pretax income.

Net deferred tax assets were approximately $201 million at September 30, 2015 and $224 million at December 31, 2014. We evaluate 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, 2015.

10. FAIR VALUE

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 Committee (“SVC”) comprised of executive management appointed by the Board of Directors. The SVC reviews and approves on a quarterly basis the key components of fair value estimation, including critical valuation assumptions for Level 3 modeling. A Model Risk Management Group conducts model validations, including internal models, 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 92% of our AFS Level 2 securities. Fair values for other AFS Level 2 and for Level 3 securities generally use certain inputs corroborated by market data and include standard form discounted cash flow modeling.

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.

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

U.S. Treasury, Agencies and Corporations

U.S. Treasury securities are measured under Level 1 using quoted market prices when available. 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 generally using the third party pricing service. Valuation inputs include Baa municipal curves, as well as FHLB and London Interbank Offered Rate (“LIBOR”) swap curves.

Money Market Mutual Funds and Other

Money market mutual funds and other securities are measured under Level 1 or Level 2. For Level 1, quoted market prices are used which may include net asset values or their equivalents. Level 2 valuations generally use quoted prices for similar securities.

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Trading Account

Securities in the trading account are measured under Level 1 using quoted market prices. If not available, quoted prices under Level 2 for similar securities are used.

Bank-Owned Life Insurance

Bank-owned life insurance (“BOLI”) 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 policies are general account policies with CSVs based on the Company’s claims on the assets of the insurance companies. The insurance companies’ investments include predominantly fixed income securities consisting of investment-grade corporate bonds and various types of mortgage instruments. Management regularly reviews its BOLI investment performance, including concentrations among insurance providers.

Private Equity Investments

Private equity investments are measured under Level 3. The Equity Investments Committee, consisting of executives familiar with the investments, reviews periodic financial information, including audited financial statements when available. Certain analytics may be employed that include current and projected financial performance, recent financing activities, economic and market conditions, market comparables, market liquidity, sales restrictions, and other factors. The amount of unfunded commitments to invest 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.

Agriculture Loan Servicing

This asset results from our servicing of agriculture loans approved and funded by Federal Agricultural Mortgage Corporation (“FAMC”). We provide this servicing under an agreement with FAMC 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 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 consist of shares of registered investment companies. These mutual funds are valued under Level 1 at quoted market prices, which represents the NAV 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 foreign 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, included in “Federal funds and other short-term borrowings” on the balance sheet, are measured under Level 1 using quoted market prices. If not available, quoted prices under Level 2 for similar securities are used.

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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, 2015
	Level 1		Level 2		Level 3		Total
ASSETS
Investment securities:
Available-for-sale:
U.S. Treasury, agencies and corporations	$	—	$	5,741,982	$	—	$	5,741,982
Municipal securities			213,398				213,398
Other debt securities			22,767				22,767
Money market mutual funds and other	18,509		3,355				21,864
	18,509		5,981,502		—		6,000,011
Trading account			73,521				73,521
Other noninterest-bearing investments:
Bank-owned life insurance			482,199				482,199
Private equity investments					120,195		120,195
Other assets:
Agriculture loan servicing and interest-only strips					13,161		13,161
Deferred compensation plan assets	83,703						83,703
Derivatives:
Interest rate related and other			18,270				18,270
Interest rate swaps for customers			66,805				66,805
Foreign currency exchange contracts	18,947						18,947
	18,947		85,075		—		104,022
	$	121,159	$	6,622,297	$	133,356	$	6,876,812
LIABILITIES
Securities sold, not yet purchased	$	29,566	$	—	$	—	$	29,566
Other liabilities:
Deferred compensation plan obligations	83,703						83,703
Derivatives:
Interest rate related and other			245				245
Interest rate swaps for customers			69,991				69,991
Foreign currency exchange contracts	16,372						16,372
	16,372		70,236		—		86,608
	$	129,641	$	70,236	$	—	$	199,877

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(In thousands)	December 31, 2014
	Level 1		Level 2		Level 3		Total
ASSETS
Investment securities:
Available-for-sale:
U.S. Treasury, agencies and corporations	$	—	$	3,098,208	$	—	$	3,098,208
Municipal securities			185,093		4,164		189,257
Asset-backed securities:
Trust preferred – banks and insurance			22,701		393,007		415,708
Auction rate					4,761		4,761
Other			666		25		691
Money market mutual funds and other	105,348		30,275				135,623
	105,348		3,336,943		401,957		3,844,248
Trading account			70,601				70,601
Other noninterest-bearing investments:
Bank-owned life insurance			476,290				476,290
Private equity investments					99,865		99,865
Other assets:
Agriculture loan servicing and interest-only strips					12,227		12,227
Deferred compensation plan assets	88,878						88,878
Derivatives:
Interest rate related and other			1,508				1,508
Interest rate swaps for customers			48,287				48,287
Foreign currency exchange contracts	16,625						16,625
	16,625		49,795		—		66,420
	$	210,851	$	3,933,629	$	514,049	$	4,658,529
LIABILITIES
Securities sold, not yet purchased	$	24,230	$	—	$	—	$	24,230
Other liabilities:
Deferred compensation plan obligations	88,878						88,878
Derivatives:
Interest rate related and other			297				297
Interest rate swaps for customers			50,669				50,669
Foreign currency exchange contracts	15,272						15,272
	15,272		50,966		—		66,238
Other					13		13
	$	128,380	$	50,966	$	13	$	179,359

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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, 2015
(In thousands)	Municipal securities		Trust  preferred – banks and insurance		Other		Private equity investments			Ag loan svcg and int-only strips			Derivatives and other liabilities
Balance at June 30, 2015	$	—	$	—	$	—	$	110,115		$	13,502		$	—
Net gains (losses) included in:
Statement of income:
Dividends and other investment income (loss)							(620		)
Equity securities gains, net							3,587
Other noninterest loss, net										(375		)
Purchases							8,184			234
Sales							(126		)
Redemptions and paydowns							(945		)	(200		)
Balance at September 30, 2015	$	—	$	—	$	—	$	120,195		$	13,161		$	—

	Level 3 Instruments
	Nine Months Ended September 30, 2015
(In thousands)	Municipal securities			Trust  preferred – banks and insurance			Other			Private equity investments			Ag loan svcg and int-only strips			Derivatives and other liabilities
Balance at December 31, 2014	$	4,164		$	393,007		$	4,761		$	97,649		$	12,227		$	(13	)
Net gains (losses) included in:
Statement of income:
Accretion of purchase discount on securities available-for-sale	3			471
Dividends and other investment loss										(1,179		)
Equity securities gains, net										7,554
Fixed income securities losses, net	(344		)	(136,691		)	(606		)
Other noninterest income, net													1,112
Other noninterest expense																13
Other comprehensive income (loss)	687			141,547			(74		)
Fair value of HTM securities reclassified as AFS				57,308
Purchases										20,498			615
Sales	(2,651		)	(440,055		)	(4,081		)	(2,634		)
Redemptions and paydowns	(1,859		)	(15,587		)				(1,693		)	(793		)
Balance at September 30, 2015	$	—		$	—		$	—		$	120,195		$	13,161		$	—

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	Level 3 Instruments
	Three Months Ended September 30, 2014
(In thousands)	Municipal securities			Trust  preferred – banks and insurance			Trust preferred – REIT 1		Auction rate			Other asset-backed			Private equity investments			Ag loan svcg and int-only strips			Derivatives and other 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 securities			Trust  preferred – banks and insurance			Trust preferred – REIT 1			Auction rate			Other asset-backed			Private equity investments			Ag loan svcg and int-only strips			Derivatives and other 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 gains, 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	)

¹  Real Estate Investment Trust

Except for the transfers included in the previous schedule, no transfers of assets or liabilities occurred among Levels 1, 2 or 3 for the three and nine months endedSeptember 30, 2015 and 2014. Transfers are considered to have occurred as of the end of the reporting period.

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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,
	2015			2014			2015			2014
Dividends and other investment income	$	(6	)	$	—		$	(2	)	$	34
Fixed income securities gains (losses), net	—			(13,917		)	(137,641		)	21,380
Equity securities losses, net	(10,637		)	—			(11,311		)	—

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, 2015								Fair value at December 31, 2014
	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
ASSETS
Private equity investments, carried at cost	$	—	$	—	$	2,974	$	2,974	$	—	$	—	$	23,454	$	23,454
Impaired loans	—		14,419		—		14,419		—		16,574		—		16,574
Other real estate owned	—		2,221		—		2,221		—		8,034		—		8,034
	$	—	$	16,640	$	2,974	$	19,614	$	—	$	24,608	$	23,454	$	48,062

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 September 30,						Nine Months Ended September 30,
	2015			2014			2015			2014
ASSETS
HTM securities adjusted for OTTI	$	—		$	—		$	—		$	(27	)
Private equity investments, carried at cost	(625		)	(339		)	(2,903		)	(471		)
Impaired loans	(7,666		)	(807		)	(12,682		)	(12,126		)
Other real estate owned	(565		)	(3,088		)	(1,883		)	(6,259		)
	$	(8,856	)	$	(4,234	)	$	(17,468	)	$	(18,883	)

During the three and nine months endedSeptember 30, we recognized net gains of $0.8 million and $2.7 million in 2015 and $1.9 million and $4.4 million in 2014 from the sale of other real estate owned (“OREO”) properties that had a carrying value at the time of sale of approximately $13.1 million and $30.7 million during the nine months endedSeptember 30, 2015 and 2014, respectively. Previous to their sale in these periods, we recognized impairment on these properties that was not significant for the three months ended September 30, 2015 and 2014, and was $0.4 million and $0.5 million for the nine months ended September 30, 2015 and 2014, respectively.

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 $28.7 million at September 30, 2015 and $39.1 million at December 31, 2014. Amounts of other noninterest-bearing investments carried at cost were $220.2 million at September 30, 2015 and $250.7 million at December 31, 2014, 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 initially at fair value based on property appraisals at the time of transfer and subsequently at the lower of cost or fair value.

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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, 2015					December 31, 2014
(In thousands)	Carrying value		Estimated fair value		Level	Carrying value		Estimated fair value		Level
Financial assets:
HTM investment securities	$	544,168	$	553,088	3	$	647,252	$	677,196	3
Loans and leases (including loans held for sale), net of allowance	39,655,805		39,414,672		3	39,591,499		39,426,498		3
Financial liabilities:
Time deposits	2,216,206		2,223,094		2	2,406,924		2,408,550		2
Foreign deposits	441,560		441,548		2	328,391		328,447		2
Long-term debt (less fair value hedges)	944,613		975,642		2	1,090,778		1,159,287		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. 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.

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ZIONS BANCORPORATION AND SUBSIDIARIES

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.

11. 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, 2015		December 31, 2014
Net unfunded commitments to extend credit 1	$	16,969,127	$	16,658,757
Standby letters of credit:
Financial	701,945		745,895
Performance	204,949		183,482
Commercial letters of credit	77,874		32,144
Total unfunded lending commitments	$	17,953,895	$	17,620,278

¹  Net of participations

The Company’s 2014 Annual Report on Form 10-K contains further information about these commitments and guarantees including their terms and collateral requirements. At September 30, 2015, the Company had recorded approximately $15.2 million as a liability for the guarantees associated with the standby letters of credit, which consisted of $12.0 million attributable to the RULC and $3.2 million of deferred commitment fees.

At September 30, 2015, the Parent has guaranteed $15 million of debt of affiliated trusts issuing trust preferred securities.

At September 30, 2015, we had unfunded commitments for private equity investments of approximately $48 million. These obligations have no stated maturity. Certain PEIs related to these commitments are prohibited by the Volcker Rule. See related discussions about these investments 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. 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. 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.

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ZIONS BANCORPORATION AND SUBSIDIARIES

As of September 30, 2015, we were subject to the following material litigation and governmental inquiries:

• a class action case, Reyes v. Zions First National Bank, et. al., which was brought in the United States District Court for the Eastern District of Pennsylvania in early 2010. This case relates to our banking relationships with customers that allegedly engaged in wrongful telemarketing practices. The plaintiff is seeking a trebled monetary award under the federal RICO Act. In the third quarter of 2013, the District Court denied the plaintiff’s motion for class certification in the Reyes case. The plaintiff appealed the District Court decision to the Third Circuit Court of Appeals. In the third quarter of 2015, the Third Circuit vacated the District Court’s decision denying class certification and remanded the matter to the District Court with instructions to reconsider the class certification determination in light of particular standards articulated by the Third Circuit in its opinion. The District Court judge has directed the parties to participate in a settlement conference with a federal magistrate judge in the fourth quarter of 2015.

• a governmental inquiry into 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). Our first contact with the United States Attorney’s Office relating to this matter occurred in early 2012. We are unclear about the status of this inquiry.

• a governmental inquiry into 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). This inquiry has been directed towards the banking industry generally, including numerous banks unrelated to us, and has led to a number of enforcement actions. Our first contact with the Department of Justice relating to this matter occurred in early 2013. We are unclear about the status of the inquiry as it relates to us.

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. Based on information available as of September 30, 2015, we estimated the aggregate range of reasonably possible losses for those matters to be from $0 million to roughly $50 million in excess of amounts accrued. 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

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ZIONS BANCORPORATION AND SUBSIDIARIES

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.

12. 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 retirement benefits				Postretirement benefits						Pension benefits						Supplemental retirement benefits				Postretirement benefits
(In thousands)	Three Months Ended September 30,																Nine Months Ended September 30,
	2015			2014			2015		2014		2015			2014			2015			2014			2015		2014		2015			2014
Service cost	$	—		$	—		$	—	$	—	$	8		$	8		$	—		$	—		$	—	$	—	$	25		$	23
Interest cost	1,755			1,869			101		113		10			12			5,320			5,608			302		340		30			35
Expected return on plan assets	(3,090		)	(3,326		)											(9,270		)	(9,979		)
Amortization of prior service cost							—		13		—			—									—		38		—			—
Amortization of net actuarial (gain) loss	1,297			735			31		5		(13		)	(18		)	4,445			2,206			92		14		(40		)	(53		)
Net periodic benefit cost (credit)	$	(38	)	$	(722	)	$	132	$	131	$	5		$	2		$	495		$	(2,165	)	$	394	$	392	$	15		$	5

As disclosed in the Company’s 2014 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.

13. 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, 2015, we operate seven community/regional banks in distinct geographical areas. Performance assessment and resource allocation are based upon this geographical structure. Zions Bank operates 99 branches in Utah, 24 branches in Idaho, and one branch in Wyoming. Amegy operates 77 branches in Texas. CB&T operates 94 branches in California. NBAZ operates 66 branches in Arizona. NSB operates 49 branches in Nevada. Vectra operates 36 branches in Colorado and one branch in New Mexico. TCBW operates one branch in Washington and one branch in Oregon. Effective April 1, 2015, TCBO was merged into TCBW. Note 1 discusses the approval to merge the Company’s seven subsidiary banks into Zions Bank following the close of business on December 31, 2015. This consolidation will affect the presentation of segment reporting, although certain geographical information will continue.

The operating segment identified as “Other” includes the Parent, Zions Management Services Company (“ZMSC”), certain nonbank financial service subsidiaries, 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. 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.

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ZIONS BANCORPORATION AND SUBSIDIARIES

The following schedule presents selected operating segment information for the three months ended September 30, 2015 and 2014:

(In millions)	Zions Bank						Amegy						CB&T						NBAZ						NSB
	2015			2014			2015			2014			2015			2014			2015			2014			2015			2014
CONDENSED INCOME STATEMENT
Net interest income	$	145.9		$	146.7		$	99.9		$	95.8		$	95.0		$	98.9		$	40.4		$	40.3		$	27.6		$	28.4
Provision for loan losses	(5.7		)	(27.7		)	31.8			(3.5		)	1.1			(10.1		)	(2.4		)	(4.5		)	(3.7		)	(4.9		)
Net interest income after provision for loan losses	151.6			174.4			68.1			99.3			93.9			109.0			42.8			44.8			31.3			33.3
Noninterest income	50.4			44.8			33.4			39.4			18.6			17.5			9.9			9.6			9.4			9.6
Noninterest expense	128.8			123.4			90.2			79.1			70.6			77.1			35.8			33.2			32.3			31.8
Income before income taxes	73.2			95.8			11.3			59.6			41.9			49.4			16.9			21.2			8.4			11.1
Income taxes (benefit)	26.4			35.4			3.5			20.4			16.4			19.1			2.6			7.9			2.8			3.7
Net income (loss)	46.8			60.4			7.8			39.2			25.5			30.3			14.3			13.3			5.6			7.4
Net income (loss) applicable to noncontrolling interests	0.6			—			—			—			—			—			—			—			—			—
Net income (loss) applicable to controlling interest	$	46.2		$	60.4		$	7.8		$	39.2		$	25.5		$	30.3		$	14.3		$	13.3		$	5.6		$	7.4
AVERAGE BALANCE SHEET DATA
Total assets	$	18,437		$	18,083		$	13,901		$	13,861		$	11,846		$	11,252		$	5,018		$	4,710		$	4,354		$	4,074
Cash and due from banks	241			322			101			172			88			134			43			70			70			94
Money market investments	2,064			3,083			2,230			2,555			1,944			1,577			441			401			961			741
Total securities	3,211			1,814			319			266			538			258			535			380			864			799
Total loans	12,200			12,312			10,078			9,721			8,532			8,520			3,799			3,660			2,321			2,318
Total deposits	15,944			15,827			11,411			11,382			10,181			9,592			4,360			4,081			3,951			3,670
Shareholder’s equity:
Preferred equity	280			280			226			226			162			162			85			85			50			50
Common equity	1,689			1,578			1,967			1,903			1,415			1,386			500			465			326			330
Noncontrolling interests	17			—			—			—			—			—			—			—			—			—
Total shareholder’s equity	1,986			1,858			2,193			2,129			1,577			1,548			585			550			376			380
	Vectra						TCBW						Other						Consolidated Company
	2015			2014			2015			2014			2015			2014			2015			2014
CONDENSED INCOME STATEMENT
Net interest income	$	25.5		$	25.4		$	7.5		$	8.3		$	(16.4	)	$	(27.1	)	$	425.4		$	416.7
Provision for loan losses	(1.6		)	(3.2		)	(1.2		)	(0.7		)	—			(0.1		)	18.3			(54.7		)
Net interest income after provision for loan losses	27.1			28.6			8.7			9.0			(16.4		)	(27.0		)	407.1			471.4
Noninterest income	5.8			6.0			1.1			1.1			2.2			(12.0		)	130.8			116.0
Noninterest expense	24.7			24.2			5.3			5.7			8.4			64.0			396.1			438.5
Income (loss) before income taxes	8.2			10.4			4.5			4.4			(22.6		)	(103.0		)	141.8			148.9
Income taxes (benefit)	2.7			3.6			1.5			1.5			(15.1		)	(38.5		)	40.8			53.1
Net income (loss)	5.5			6.8			3.0			2.9			(7.5		)	(64.5		)	101.0			95.8
Net income (loss) applicable to noncontrolling interests	—			—			—			—			(0.6		)	—			—			—
Net income (loss) applicable to controlling interest	$	5.5		$	6.8		$	3.0		$	2.9		$	(6.9	)	$	(64.5	)	$	101.0		$	95.8
AVERAGE BALANCE SHEET DATA
Total assets	$	3,246		$	2,751		$	1,058		$	977		$	546		$	420		$	58,406		$	56,128
Cash and due from banks	26			41			29			34			(14		)	(9		)	584			858
Money market investments	514			174			227			140			395			(178		)	8,776			8,493
Total securities	247			152			86			78			56			300			5,856			4,047
Total loans	2,397			2,319			702			712			(4		)	5			40,025			39,567
Total deposits	2,834			2,339			906			827			(668		)	(1,427		)	48,919			46,291
Shareholder’s equity:
Preferred equity	25			26			3			3			173			172			1,004			1,004
Common equity	324			307			111			107			324			145			6,656			6,221
Noncontrolling interests	—			—			—			—			(17		)	—			—			—
Total shareholder’s equity	349			333			114			110			480			317			7,660			7,225

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ZIONS BANCORPORATION AND SUBSIDIARIES

The following schedule presents selected operating segment information for the nine months ended September 30, 2015 and 2014:

(In millions)	Zions Bank						Amegy						CB&T						NBAZ					NSB
	2015			2014			2015			2014			2015			2014			2015		2014			2015			2014
CONDENSED INCOME STATEMENT
Net interest income	$	431.2		$	434.8		$	291.6		$	285.9		$	289.4		$	311.8		$	119.7	$	120.9		$	83.9		$	84.6
Provision for loan losses	(18.7		)	(51.8		)	56.9			5.9			(6.5		)	(25.1		)	1.0		(15.5		)	(15.4		)	(13.2		)
Net interest income after provision for loan losses	449.9			486.6			234.7			280.0			295.9			336.9			118.7		136.4			99.3			97.8
Noninterest income 1	90.6			139.0			101.2			107.7			56.5			37.1			29.2		26.2			26.8			23.4
Noninterest expense	385.5			366.0			280.9			258.6			224.4			244.8			109.5		109.4			98.0			97.9
Income before income taxes	155.0			259.6			55.0			129.1			128.0			129.2			38.4		53.2			28.1			23.3
Income taxes (benefit)	54.4			95.4			17.2			43.6			50.0			50.2			10.0		19.7			9.4			7.7
Net income (loss)	100.6			164.2			37.8			85.5			78.0			79.0			28.4		33.5			18.7			15.6
Net income (loss) applicable to noncontrolling interests	2.0			—			—			—			—			—			—		—			—			—
Net income (loss) applicable to controlling interest	$	98.6		$	164.2		$	37.8		$	85.5		$	78.0		$	79.0		$	28.4	$	33.5		$	18.7		$	15.6
AVERAGE BALANCE SHEET DATA
Total assets	$	18,628		$	17,983		$	13,846		$	13,650		$	11,578		$	11,063		$	4,929	$	4,673		$	4,277		$	4,046
Cash and due from banks	263			332			127			235			88			152			45		72			72			88
Money market investments	2,664			3,101			2,086			2,498			1,794			1,321			413		368			861			735
Total securities	2,827			1,720			295			256			434			274			466		372			854			789
Total loans	12,184			12,292			10,170			9,550			8,502			8,571			3,803		3,668			2,354			2,314
Total deposits	16,186			15,709			11,362			11,217			9,917			9,421			4,277		4,016			3,870			3,648
Shareholder’s equity:
Preferred equity	280			280			226			202			162			162			85		101			50			50
Common equity	1,654			1,556			1,953			1,875			1,405			1,368			492		447			330			324
Noncontrolling interests	13			—			—			—			—			—			—		—			—			—
Total shareholder’s equity	1,947			1,836			2,179			2,077			1,567			1,530			577		548			380			374
	Vectra						TCBW						Other						Consolidated Company
	2015			2014			2015			2014			2015			2014			2015		2014
CONDENSED INCOME STATEMENT
Net interest income	$	77.6		$	76.1		$	22.6		$	24.0		$	(49.6	)	$	(88.6	)	$	1,266.4	$	1,249.5
Provision for loan losses	1.9			(9.5		)	(1.8		)	(0.4		)	(0.1		)	(0.1		)	17.3		(109.7		)
Net interest income after provision for loan losses	75.7			85.6			24.4			24.4			(49.5		)	(88.5		)	1,249.1		1,359.2
Noninterest income 1	15.6			15.7			3.3			1.4			(70.1		)	28.7			253.1		379.2
Noninterest expense	73.0			73.2			11.6			17.1			14.8			75.6			1,197.7		1,242.6
Income (loss) before income taxes	18.3			28.1			16.1			8.7			(134.4		)	(135.4		)	304.5		495.8
Income taxes (benefit)	5.8			9.7			5.5			3.0			(54.8		)	(50.1		)	97.5		179.2
Net income (loss)	12.5			18.4			10.6			5.7			(79.6		)	(85.3		)	207.0		316.6
Net income (loss) applicable to noncontrolling interests	—			—			—			—			(2.0		)	—			—		—
Net income (loss) applicable to controlling interest	$	12.5		$	18.4		$	10.6		$	5.7		$	(77.6	)	$	(85.3	)	$	207.0	$	316.6
AVERAGE BALANCE SHEET DATA
Total assets	$	3,154		$	2,639		$	1,007		$	957		$	154		$	524		$	57,573	$	55,535
Cash and due from banks	28			45			33			28			(17		)	(14		)	639		938
Money market investments	459			70			166			122			(39		)	(168		)	8,404		8,047
Total securities	221			158			82			84			120			409			5,299		4,062
Total loans	2,385			2,305			712			710			1			4			40,111		39,414
Total deposits	2,745			2,231			863			809			(1,039		)	(1,205		)	48,181		45,846
Shareholder’s equity:
Preferred equity	25			46			3			3			173			160			1,004		1,004
Common equity	320			279			107			105			258			(98		)	6,519		5,856
Noncontrolling interests	—			—			—			—			(13		)	—			—		—
Total shareholder’s equity	345			325			110			108			418			62			7,523		6,860

¹  Includes loss on sale of CDOs in the second quarter of 2015 of (in millions) $62.5 (Zions Bank), $0.6 (NSB), $0.6 (Vectra) and $73.1 (Other).

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ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

FORWARD-LOOKING INFORMATION

Statements in this Quarterly Report on Form 10-Q that are based on other than historical data are forward-looking within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements provide current expectations or forecasts of future events and include, among others:

• statements with respect to the beliefs, plans, objectives, goals, guidelines, expectations, anticipations, and future financial condition, results of operations and performance of Zions Bancorporation (“the Parent”) and its subsidiaries (collectively “the Company,” “Zions,” “we,” “our,” “us”); and

• statements preceded by, followed by, or that include the words “may,” “could,” “should,” “would,” “believe,” “anticipate,” “estimate,” “expect,” “intend,” “plan,” “target,” “projects,” or similar expressions.

These forward-looking statements are not guarantees of future performance, nor should they be relied upon as representing management’s views as of any subsequent date. Forward-looking statements involve significant risks and uncertainties and actual results may differ materially from those presented, either expressed or implied, including, but not limited to, those presented in Management’s Discussion and Analysis. Factors that might cause such differences include, but are not limited to:

• the Company’s ability to successfully execute its business plans, manage its risks, and achieve its objectives, including its restructuring and efficiency initiatives and its tender offer for certain of its preferred stock;

• changes in local, national and international political and economic conditions, including without limitation the political and economic effects of the recent economic crisis, delay of recovery from that crisis, economic and fiscal imbalances in the United States and other countries, potential or actual downgrades in ratings of sovereign debt issued by the United States and other countries, and other major developments, including wars, military actions, and terrorist attacks;

• changes in financial and commodity market prices and conditions, either internationally, nationally or locally in areas in which the Company conducts its operations, including without limitation reduced rates of business formation and growth, commercial and residential real estate development and real estate prices, and energy-related commodity prices, including the actual amount and duration of declines in the price of oil and gas;

• changes in markets for debt, equity, and securities, including availability, market liquidity levels, and pricing;

• changes in interest rates, the quality and composition of the loan and securities portfolios, demand for loan products, deposit flows and competition;

• acquisitions and integration of acquired businesses;

• increases in the levels of losses, customer bankruptcies, bank failures, claims, and assessments;

• changes in fiscal, monetary, regulatory, trade and tax policies and laws, and regulatory assessments and fees, including policies of the U.S. Department of Treasury, the OCC, the Board of Governors of the Federal Reserve Board System, the FDIC, the SEC, and the CFPB; 

• the impact of executive compensation rules under the Dodd-Frank Act and banking regulations which may impact the ability of the Company and other American financial institutions to retain and recruit executives and other personnel necessary for their businesses and competitiveness;

• the impact of the Dodd-Frank Act and Basel III, and rules and regulations thereunder, on our required regulatory capital and liquidity levels, governmental assessments on us (including, but not limited to, the Federal Reserve reviews of our annual capital plan), the scope of business activities in which we may engage, the manner in which we engage in such activities, the fees we may charge for certain products and services, and other matters affected by the Dodd-Frank Act and these international standards;

• continuing consolidation in the financial services industry;

• new legal claims against the Company, including litigation, arbitration and proceedings brought by governmental or self-regulatory agencies, or changes in existing legal matters;

• success in gaining regulatory approvals, when required;

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• changes in consumer spending and savings habits;

• increased competitive challenges and expanding product and pricing pressures among financial institutions;

• inflation and deflation;

• technological changes and the Company’s implementation of new technologies;

• the Company’s ability to develop and maintain secure and reliable information technology systems;

• legislation or regulatory changes which adversely affect the Company’s operations or business;

• the Company’s ability to comply with applicable laws and regulations;

• changes in accounting policies or procedures as may be required by the FASB or regulatory agencies; and

• costs of deposit insurance and changes with respect to FDIC insurance coverage levels.

Except to the extent required by law, the Company specifically disclaims any obligation to update any factors or to publicly announce the result of revisions to any of the forward-looking statements included herein to reflect future events or developments.

GLOSSARY OF ACRONYMS

ACL	Allowance for Credit Losses	EVE	Economic Value of Equity at Risk
AFS	Available-for-Sale	FAMC	Federal Agricultural Mortgage Corporation, or “Farmer Mac”
ALCO	Asset/Liability Committee	FASB	Financial Accounting Standards Board
ALLL	Allowance for Loan and Lease Losses	FDIC	Federal Deposit Insurance Corporation
Amegy	Amegy Corporation	FHLB	Federal Home Loan Bank
AOCI	Accumulated Other Comprehensive Income	FHLMC	Federal Home Loan Mortgage Corporation, or “Freddie Mac”
ASC	Accounting Standards Codification	FNMA	Federal National Mortgage Association, or “Fannie Mae”
ASU	Accounting Standards Update	FRB	Federal Reserve Board
ATM	Automated Teller Machine	GAAP	Generally Accepted Accounting Principles
BOLI	Bank-Owned Life Insurance	GNMA	Government National Mortgage Association, or “Ginnie Mae”
bps	basis points	HECL	Home Equity Credit Line
CB&T	California Bank & Trust	HQLA	High Quality Liquid Assets
CCAC	Corporate Credit Administration Committee	HTM	Held-to-Maturity
CCAR	Comprehensive Capital Analysis and Review	IFRS	International Financial Reporting Standards
CDO	Collateralized Debt Obligation	ISDA	International Swap and Derivative Association
CET1	Common Equity Tier 1 (Basel III)	LCR	Liquidity Coverage Ratio
CFPB	Consumer Financial Protection Bureau	LGD	Loss Given Default
CLTV	Combined Loan-to-Value Ratio	LIBOR	London Interbank Offered Rate
COSO	Committee of Sponsoring Organizations of the Treadway Commission	LIHTC	Low-Income Housing Tax Credit
CRE	Commercial Real Estate	MD&A	Management’s Discussion and Analysis
CSA	Credit Support Annex	NAV	Net Asset Value
CSV	Cash Surrender Value	NBAZ	National Bank of Arizona
DBRS	Dominion Bond Rating Service	NSFR	Net Stable Funding Ratio
DFAST	Dodd-Frank Act Stress Test	NSB	Nevada State Bank
Dodd-Frank Act	Dodd-Frank Wall Street Reform and Consumer Protection Act	NYMEX	New York Mercantile Exchange
DTA	Deferred Tax Asset	OCC	Office of the Comptroller of the Currency
EITF	Emerging Issues Task Force	OCI	Other Comprehensive Income
ERM	Enterprise Risk Management	OREO	Other Real Estate Owned
ERMC	Enterprise Risk Management Committee	OTC	Over-the-Counter

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OTTI	Other-Than-Temporary Impairment	SVC	Securitization Valuation Committee
Parent	Zions Bancorporation	T1C	Tier 1 Common (Basel I)
PCI	Purchase Credit-Impaired	TCBO	The Commerce Bank of Oregon
PD	Probability of Default	TCBW	The Commerce Bank of Washington
PEIs	Private Equity Investments	TDR	Troubled Debt Restructuring
REIT	Real Estate Investment Trust	Vectra	Vectra Bank Colorado
ROC	Risk Oversight Committee	VIE	Variable Interest Entity
RULC	Reserve for Unfunded Lending Commitments	VR	Volcker Rule
SBA	Small Business Administration	Zions Bank	Zions First National Bank
SBIC	Small Business Investment Company	ZMFU	Zions Municipal Funding
SEC	Securities and Exchange Commission	ZMSC	Zions Management Services Company
SNC	Shared National Credit

CRITICAL ACCOUNTING POLICIES AND SIGNIFICANT ESTIMATES

The Company has made no significant changes in its critical accounting policies and significant estimates from those disclosed in its 2014 Annual Report on Form 10-K.

RESULTS OF OPERATIONS

Executive Summary

Net earnings applicable to common shareholders for the third quarter of 2015 were $84.2 million, or $0.41 per diluted common share, compared to a net loss applicable to common shareholders of $(1.1) million, or $(0.01) per diluted common share, for the second quarter of 2015 and net income of $79.1 million, or $0.40 per diluted common share for the third quarter of 2014. The Company’s second quarter results included a $137 million loss, or $0.42 per diluted share, from the sale of remaining collateralized debt obligation (“CDO”) securities. Excluding this loss, net earnings applicable to common shareholders was $83.4 million, or $0.41 per diluted common share, for the second quarter of 2015.

Highlights from the third quarter include:

• Total noninterest expense was $396 million during the third quarter and $1,198 million year-to-date, compared to $404 million and $802 million last quarter, and $439 million and $1,243 million during the third quarter of 2014. As previously committed, the Company is on track to achieve 50% of its gross $120 million expense reduction by the end of 2015 and to hold adjusted noninterest expense below $1.6 billion in 2015.

• The efficiency ratio improved to 69.5% during the third quarter, compared to 71.4% during the second quarter, and 73.0% for the third quarter of 2014, reflecting progress towards the Company’s commitment to have this ratio be at or less than 70% for the second half of 2015.

• The credit quality of the Company’s overall loan portfolio remained strong, with moderate deterioration in energy loans as explained subsequently. When compared to the prior quarter’s level, classified loans increased 2%, nonperforming assets declined 4%, and net charge-offs excluding energy loans were stable. Compared to the same prior year period, classified loans and nonperforming assets each increased 11%.

• Energy loan net charge-offs were $17 million during the third quarter; there were no energy loan net charge-offs during the second quarter. The Company increased the allowance for credit losses (“ACL”) on its energy portfolio in part due to the decline in energy prices during the third quarter. This contributed to an increased provision for loan losses of $18.3 million during the third quarter, compared to $0.6 million during the second quarter. The overall performance of the energy loan portfolio has been substantially consistent with the Company’s initial communications in late 2014, which concluded that some deterioration was expected from

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declining energy prices; however, we expect disciplined underwriting and strong reserves will keep the impact relatively modest to net charge-offs and overall profitability.

• Net interest income increased slightly from the prior quarter while the net interest margin declined to 3.11% from 3.18%, primarily driven by an increased concentration of cash and securities and a decline in the yield of the loan portfolio attributable primarily to the waning benefit from loans purchased from the Federal Deposit Insurance Corporation (“FDIC”) in 2009. Net interest income increased in the third quarter by $8.6 million, or 2%, compared to the same prior year period primarily as a result of the extinguishment of certain long-term debt.

• Loans held for investment increased $89 million during the third quarter. Excluding the effect of attrition in energy-related loans and the National Real Estate portfolio, loans increased $285 million during the third quarter, compared to a $259 million increase during the second quarter calculated on the same basis. Loans held for investment increased $374 million during the third quarter compared to the same prior year period primarily from increased construction and land development and commercial and industrial loans.

Efficiency Initiatives

During the second quarter of 2015, we announced a corporate restructuring in conjunction with several expense and revenue initiatives that are expected to substantially improve our profitability metrics, including:

• consolidate bank charters from seven to one while maintaining local leadership, local product pricing, and local brands;

• create a chief banking officer position, with responsibility for retail banking, wealth management, and residential mortgage lending;

• consolidate risk functions, while emphasizing local credit decision-making;

• consolidate various non-customer facing operations; and

• continue to invest in building best-in-class technology.

We have received approvals from the OCC and the FDIC and expect to complete the mergers following the close of business on December 31, 2015. We will continue to emphasize our locally-oriented leadership structure and the power of our strong local brands in each market we serve. The consolidation of our bank charters will facilitate a simpler and more responsive operating environment and the realization of efficiencies more quickly and in greater measure than is possible under the status quo.

These changes are designed to improve the customer experience (e.g., faster turnaround times), simplify the corporate structure and how we do business, and drive substantial positive operating leverage. The increase in operating leverage is expected to come through increased revenue from growth in loans, deployment of cash to mortgage-backed securities, increased use of interest rate swaps, and improvement in core fee income.

Once implemented, these changes should ultimately produce better revenue and expense trajectories. The following are the targeted financial performance outcomes of these organizational changes, and associated operational and technological initiatives with some brief comments regarding current performance against these measures:

• Achieve an efficiency ratio in the low 60s by fiscal year 2017, driven by expense and revenue initiatives detailed below; the announced target assumes a slight increase in interest rates. We also have intermediate goals of an efficiency ratio less than or equal to 70% in the second half of 2015 and less than or equal to 66% in 2016. The efficiency ratio improved to 69.5% during the third quarter, compared to 71.4% during the second quarter. See “GAAP to Non-GAAP Reconciliations” on page 90 for more information regarding the calculation of the efficiency ratio.

• Increase returns on tangible common equity over the long term to double digit levels. For the third quarter, the tangible return on average tangible common equity was 6.05%, compared to 0.03% for the second quarter (decreased due to the loss from sales of CDO securities), and 6.19% for the third quarter of 2014.

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• Maintain noninterest expense below $1.6 billion in 2015 and 2016, and increasing somewhat in 2017; this target excludes those same expense items excluded in arriving at the efficiency ratio (see “GAAP to Non-GAAP Reconciliations” on page 90 for more information regarding the calculation of the efficiency ratio). We are encouraged with the achievement of noninterest expenses at or below the $400 million level for the third quarter. We are working to realize the remainder of the gross cost savings for 2015 and to keep noninterest expense below $1.6 billion in 2016 as well.

• Achieve gross pretax cost savings of $120 million annually from operational expense initiatives by fiscal year 2017, which include overhauling technology, consolidating legal charters, and improving operating efficiency across the Company. We are on track to achieve half of the targeted cost reductions by year-end.

Net Interest Income, Margin and Interest Rate Spreads

Net interest income is the difference between interest earned on interest-earning assets and interest paid on interest-bearing liabilities; net interest income is the largest portion of our revenue. For the third quarter of 2015, taxable-equivalent net interest income was $429.8 million, compared to $428.0 million for the second quarter of 2015, and $420.9 million for the third quarter of 2014.

Net interest margin in 2015 vs. 2014

The net interest margin was 3.11% and 3.20% for the third quarter of 2015 and 2014, respectively, and 3.18% for the second quarter of 2015. The decreased net interest margin for the third quarter of 2015, compared to the same prior year period, resulted primarily from lower yields on loans held for investment and an increased concentration of available-for-sale (“AFS”) securities.

Even though our average loan portfolio was $458 million higher during the third quarter of 2015, compared to the third quarter of 2014, the average interest rate earned on those assets was 4.18%, which is 15 bps lower than the comparable prior year period. This decline in interest income was primarily caused by reduced interest income on loans purchased from the FDIC in 2009, as those acquired portfolios were successfully managed down, and new loans being originated at lower yields than those that are prepaying and maturing.

The average balance of AFS securities for the third quarter of 2015 increased by $1.9 billion, or 55.3%, while the average yield was 25 bps lower compared to the same prior year period. The decline in the average yield and the changes in the average balance are a result of changes in the composition of the AFS portfolio and the yields of the securities sold and purchased. Beginning in the second half of 2014, to improve the yield of the securities portfolio while maintaining holdings of high quality liquid assets (“HQLA”) securities, we started purchasing U.S. agency pass-through securities. These increases were partially offset by CDO sales and paydowns.

Average noninterest-bearing demand deposits provided us with low cost funding and comprised 44.1% of average total deposits for the third quarter of 2015, compared to 43.1% for third quarter of 2014. Average interest-bearing deposits increased by 3.8% in the third quarter of 2015, compared to the same prior year period, while the average rate paid declined by 1 bp to 18 bps.

The average balance of long-term debt was $844 million lower for the third quarter of 2015 compared to the same prior year period. The reduced balance was a result of tender offers, early calls, and maturities, including $835 million during the third quarter of 2014. The average interest rate paid on long-term debt for the third quarter of 2015 increased by 43 bps compared to the same prior year period. This is due to the remaining average balance of long-term debt being at a higher interest rate than the debt that was redeemed during the past year. Some of the higher cost long-term debt matured in the latter part of the third quarter and more will mature in the fourth quarter. On September 15, 2015, approximately $109 million carrying value of 6.0% subordinated and convertible subordinated notes matured. The total effective cost of this debt was approximately 17% during 2015; the higher effective cost was due to the amortization of debt discount. On November 16, 2015, approximately $124 million par amount of similar 5.5% notes that currently have an effective cost of approximately 14% will mature. We continue

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to look for opportunities to manage down the cost of funds. Refer to the “Liquidity Risk Management” section beginning on page 84 for more information.

During the third quarter of 2015, most of our cash in excess of that needed to fund other interest-earning assets was invested in money market assets, primarily deposits with the Federal Reserve Bank. Average money market investments were 16.0% of total interest-earning assets, compared to 16.3% in the same prior year period.

See “Interest Rate and Market Risk Management” on page 80 for further discussion of how we manage the portfolios of interest-earning assets, interest-bearing liabilities, and the associated risk.

The spread on average interest-bearing funds was 2.91% and 2.92% for the third quarters of 2015 and 2014, respectively. The rate on interest-earning assets in the third quarter of 2015 of 3.34% was 19 bps lower than that in the same prior year period, and the cost on interest-bearing liabilities declined by 18 bps during the same comparable periods.

We expect the mix of interest-earning assets to continue to change over the next several quarters due to slight-to-moderate loan growth in the commercial and industrial portfolios, accompanied by somewhat less growth in commercial real estate loans. In addition, as discussed below, we are incrementally investing in short-to-medium duration U.S. agency pass-through securities that qualify as HQLA; over time we expect these investments to reduce the proportion of earning assets in money market investments, and increase the proportion of AFS securities. Average yields on the loan portfolio may continue to experience modest downward pressure due to competitive pricing, lower benchmark indices (such as LIBOR), and growth in lower-yielding residential mortgages; however, we expect this pressure to be somewhat less compared to the prior two years. We believe that some of the downward pressure on the net interest margin will be mitigated by lower interest expense on reduced levels of long-term debt due to maturities that occurred late in the third quarter of 2015 and will occur in the fourth quarter. We also believe we can offset some of the pressure on the net interest margin through loan growth, purchases of AFS securities, and employment of interest rate swaps designated as cash flow hedges.

We expect to remain “asset-sensitive” (which refers to net interest income increasing as a result of a rising interest rate environment) with regard to interest rate risk. In response to new liquidity and liquidity stress-testing regulations, which elevate, relative to historic levels, the proportion of HQLA we will be required to hold, we decided in the second half of 2014 to begin deploying cash into short-to-medium duration U.S. agency pass-through securities. In the third quarter of 2015, we purchased HQLA securities of $1.6 billion at amortized cost, increasing HQLA securities by $1.4 billion after paydowns and payoffs during the quarter, and we are continuing these purchases. Over time these purchases are expected to somewhat reduce our asset sensitivity compared to previous periods. Our estimates of the Company’s actual interest rate risk position are highly dependent upon a number of assumptions regarding the repricing behavior of various deposit and loan types in response to changes in both short-term and long-term interest rates, balance sheet composition, and other modeling assumptions, as well as the actions of competitors and customers in response to those changes. In addition, our modeled projections for noninterest-bearing demand deposits, a substantial portion of our deposit balances are particularly reliant on assumptions for which there is little historical experience due to the prolonged period of very low interest rates. Further detail on interest rate risk is discussed in “Interest Rate Risk” on page 80.

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The following schedule summarizes the average balances, the amount of interest earned or incurred, and the applicable yields for interest-earning assets and the costs of interest-bearing liabilities that generate taxable-equivalent net interest income.

CONSOLIDATED AVERAGE BALANCE SHEETS, YIELDS AND RATES

(Unaudited)

	Three Months Ended September 30, 2015							Three Months Ended September 30, 2014
(In thousands)	Average balance			Amount of interest 1		Average yield/rate		Average balance			Amount of interest 1		Average yield/rate
ASSETS
Money market investments	$	8,775,823		$	6,018	0.27	%	$	8,492,772		$	5,483	0.26	%
Securities:
Held-to-maturity	553,615			7,075		5.07	%	612,244			7,912		5.13	%
Available-for-sale	5,254,986			24,502		1.85	%	3,383,618			17,937		2.10	%
Trading account	47,235			445		3.74	%	50,970			403		3.14	%
Total securities	5,855,836			32,022		2.17	%	4,046,832			26,252		2.57	%
Loans held for sale	131,113			1,222		3.70	%	124,347			1,179		3.76	%
Loans and leases 2
Commercial	21,289,641			222,478		4.15	%	21,125,766			232,290		4.36	%
Commercial real estate	10,170,539			114,695		4.47	%	10,378,969			117,290		4.48	%
Consumer	8,565,075			84,200		3.90	%	8,062,690			81,813		4.03	%
Total loans and leases	40,025,255			421,373		4.18	%	39,567,425			431,393		4.33	%
Total interest-earning assets	54,788,027			460,635		3.34	%	52,231,376			464,307		3.53	%
Cash and due from banks	583,936							858,179
Allowance for loan losses	(602,677		)					(674,590		)
Goodwill	1,014,129							1,014,129
Core deposit and other intangibles	19,726							29,535
Other assets	2,602,639							2,669,260
Total assets	$	58,405,780						$	56,127,889
LIABILITIES AND SHAREHOLDERS’ EQUITY
Interest-bearing deposits:
Savings and money market	$	24,676,897		9,895		0.16	%	$	23,637,158		9,404		0.16	%
Time	2,242,064			2,445		0.43	%	2,466,552			2,809		0.45	%
Foreign	441,670			202		0.18	%	254,549			100		0.16	%
Total interest-bearing deposits	27,360,631			12,542		0.18	%	26,358,259			12,313		0.19	%
Borrowed funds:
Federal funds and other short-term borrowings	211,322			76		0.14	%	176,383			52		0.12	%
Long-term debt	1,033,818			18,235		7.00	%	1,878,247			31,092		6.57	%
Total borrowed funds	1,245,140			18,311		5.83	%	2,054,630			31,144		6.01	%
Total interest-bearing liabilities	28,605,771			30,853		0.43	%	28,412,889			43,457		0.61	%
Noninterest-bearing deposits	21,558,557							19,933,228
Other liabilities	581,880							556,416
Total liabilities	50,746,208							48,902,533
Shareholders’ equity:
Preferred equity	1,004,059							1,004,012
Common equity	6,655,513							6,221,344
Total shareholders’ equity	7,659,572							7,225,356
Total liabilities and shareholders’ equity	$	58,405,780						$	56,127,889
Spread on average interest-bearing funds						2.91	%						2.92	%
Taxable-equivalent net interest income and net yield on interest-earning assets				$	429,782	3.11	%				$	420,850	3.20	%

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	Nine Months Ended September 30, 2015							Nine Months Ended September 30, 2014
(In thousands)	Average balance			Amount of interest 1		Average yield/rate		Average balance			Amount of interest 1		Average yield/rate
ASSETS
Money market investments	$	8,404,053		$	17,021	0.27	%	$	8,046,760		$	15,501	0.26	%
Securities:
Held-to-maturity	589,673			22,431		5.09	%	600,127			24,143		5.38	%
Available-for-sale	4,644,554			67,981		1.96	%	3,403,117			56,913		2.24	%
Trading account	64,534			1,653		3.42	%	58,786			1,451		3.30	%
Total securities	5,298,761			92,065		2.32	%	4,062,030			82,507		2.72	%
Loans held for sale	117,351			3,138		3.58	%	131,575			3,600		3.66	%
Loans and leases 2
Commercial	21,463,558			672,468		4.19	%	21,062,688			691,357		4.39	%
Commercial real estate	10,115,149			337,980		4.47	%	10,417,054			367,710		4.72	%
Consumer	8,532,595			250,191		3.92	%	7,933,810			242,150		4.08	%
Total loans and leases	40,111,302			1,260,639		4.20	%	39,413,552			1,301,217		4.41	%
Total interest-earning assets	53,931,467			1,372,863		3.40	%	51,653,917			1,402,825		3.63	%
Cash and due from banks	639,049							937,858
Allowance for loan losses	(611,062		)					(717,999		)
Goodwill	1,014,129							1,014,129
Core deposit and other intangibles	22,055							32,260
Other assets	2,577,128							2,614,959
Total assets	$	57,572,766						$	55,535,124
LIABILITIES AND SHAREHOLDERS’ EQUITY
Interest-bearing deposits:
Savings and money market	$	24,470,254		29,083		0.16	%	$	23,344,375		27,325		0.16	%
Time	2,304,572			7,447		0.43	%	2,511,098			8,810		0.47	%
Foreign	373,390			437		0.16	%	749,413			1,053		0.19	%
Total interest-bearing deposits	27,148,216			36,967		0.18	%	26,604,886			37,188		0.19	%
Borrowed funds:
Federal funds and other short-term borrowings	215,088			228		0.14	%	228,546			182		0.11	%
Long-term debt	1,068,891			56,290		7.04	%	2,050,189			104,098		6.79	%
Total borrowed funds	1,283,979			56,518		5.89	%	2,278,735			104,280		6.12	%
Total interest-bearing liabilities	28,432,195			93,485		0.44	%	28,883,621			141,468		0.65	%
Noninterest-bearing deposits	21,033,053							19,240,639
Other liabilities	584,672							550,780
Total liabilities	50,049,920							48,675,040
Shareholders’ equity:
Preferred equity	1,004,035							1,003,990
Common equity	6,518,811							5,856,094
Total shareholders’ equity	7,522,846							6,860,084
Total liabilities and shareholders’ equity	$	57,572,766						$	55,535,124
Spread on average interest-bearing funds						2.96	%						2.98	%
Taxable-equivalent net interest income and net yield on interest-earning assets				$	1,279,378	3.17	%				$	1,261,357	3.26	%

¹  Taxable-equivalent rates used where applicable.

²  Net of unearned income and fees, net of related costs. Loans include nonaccrual and restructured loans.

Provisions for Credit Losses

The provision for loan losses is the amount of expense that, in our judgment, is required to maintain the allowance for loan losses at an adequate level based on the inherent risks in the loan portfolio. The provision for unfunded lending commitments is used to maintain the reserve for unfunded lending commitments (“RULC”) at an adequate level based on the inherent risks associated with such commitments. In determining adequate levels of the

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allowance and reserve, we perform periodic evaluations of our various loan portfolios, the levels of actual charge-offs, credit trends, and external factors. See Note 6of the Notes to Consolidated Financial Statements and “Credit Risk Management” on page 69 for more information on how we determine the appropriate level for the allowance for loan and lease losses (“ALLL”) and the RULC.

During the past few years, we have experienced a significant improvement in credit quality metrics; however, recently we have experienced deterioration in various credit quality metrics primarily associated with energy-related loans at Amegy Bank. Overall credit quality metrics for the third quarter of 2015 compared to the same prior year period deteriorated moderately. Gross loan and lease charge-offs increased to $42 million in the third quarter of 2015, compared to $26 million in the same prior year period. Additionally, we had gross recoveries of $11 million in the third quarter of 2015, compared to $16 million in the same prior year period.

Nonperforming assets increased to $372 million at September 30, 2015 from $326 million at December 31, 2014. The ratio of nonperforming assets to loans and leases and other real estate owned (“OREO”) increased to 0.92% at September 30, 2015 from 0.81% at December 31, 2014. Classified loans increased to $1.3 billion at September 30, 2015 from $1.1 billion at December 31, 2014. Approximately 84% of classified loans at September 30, 2015 were current as to principal and interest payments, compared to 83% at December 31, 2014. Classified loans are loans with well-defined credit weaknesses that are risk graded Substandard or Doubtful.

The allowance for loan losses decreased by approximately $8.2 million since December 31, 2014, due to improvements in credit quality metrics outside of the energy portfolio, which outweighed deterioration within the energy portfolio. This resulted in a provision of $18.3 million in the third quarter of 2015, compared to a provision of $(54.6) million in the third quarter of 2014. The negative provision in the third quarter of 2014 was due to the continued improvement in portfolio-specific credit quality metrics and sustained improvement in broader economic and credit quality indicators up to that point. During the third quarter of 2015, the provision increased by $17.7 million compared to the second quarter of 2015 due to an increase in charge-offs, particularly in the energy portfolio. We continue to exercise caution with regard to the appropriate level of the allowance for loan losses, given the state of the economy and the sensitivity of the energy loan portfolio to oil and gas prices. Refer to the “Energy-Related Exposure” section on page 70 for more information.

During the third quarter of 2015, we recorded a $1.4 million provision for unfunded lending commitments compared to $(16.1) million in the third quarter of 2014. The provision recognized in the third quarter of 2015 is primarily due to the proportionally large amount of unfunded commitments in the energy portfolio compared to the rest of the portfolio. The negative provision in the third quarter of 2014 was primarily due to significant improvement in portfolio-specific credit quality metrics, sustained improvement in broader economic and credit quality indicators, and changes in the portfolio mix. From quarter to quarter, the provision for unfunded lending commitments may be subject to sizable fluctuations due to changes in the timing and volume of loan commitments, originations, funding, and changes in credit quality.

Noninterest Income

Noninterest income represents revenues we earn for products and services that have no associated interest rate or yield. For the third quarter of 2015, noninterest income was $130.8 million, compared to $116.1 million for the same prior year period. The $14.7 million increase was primarily attributable to $13.9 million of fixed income securities losses during the third quarter of 2014 related to the sales of certain CDO securities. The following are the other major components of noninterest income line items impacting the third quarter change.

Equity securities gains increased by $3.2 million in the third quarter of 2015 compared to the same prior year period. The equity securities gains were primarily due to unrealized gains on the Company’s Small Business Investment Company (“SBIC”) investments.

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Dividends and other investment income declined by $2.9 million in the third quarter of 2015 compared to the same prior year period. The decline was primarily a result of lower income from the Company’s private equity investments (“PEIs”). As part of the Company’s initiative to consolidate its charters into a single charter, the Company expects to only have shares in the Federal Home Loan Bank (“FHLB”) in Des Moines, and the Company’s subsidiary banks are expected to redeem their shares in the other respective FHLBs, most likely in the second quarter of 2016. As a result of this consolidation, the amount of FHLB dividends received is expected to be reduced in 2016. For the first nine months of 2015, we received approximately $6.0 million of FHLB dividend income. Additionally, Congress is considering reducing the dividends that certain banks receive from shares held in the Federal Reserve Board (“FRB”). For the first nine months of 2015, we received approximately $5.5 million of FRB dividend income.

For the first nine months of 2015, noninterest income decreased by $126.2 million, compared to the first nine months of 2014. The decrease was primarily a result of a one-time loss related to the sale of CDO securities, resulting in a decline of $160.8 million in fixed securities gains compared to the first nine months of 2014. These losses were partially offset by an increase in other service charges, commissions and fees, fair value and nonhedge derivative income, and equity securities gains. All significant components impacting the first nine months of the year not explained above are as follows.

Other service charges, commissions and fees, which are comprised of ATM fees, insurance commissions, bankcard merchant fees, debit and credit card interchange fees, cash management fees, lending commitment fees, syndication and servicing fees, and other miscellaneous fees, increased by $8.2 million in the first nine months of 2015, compared to the same prior year period. The increase was primarily due to increased interchange and merchant fees from commercial credit cards and from interest rate swap management fees.

Fair value and nonhedge derivative income represents the fair value gains and losses from nonhedge credit derivatives as well as the fees on a total return swap. Fair value and nonhedge derivative income improved by $9.6 million to a loss of $(0.8) million for the first nine months of 2015 from a loss of $(10.4) million for the first nine months of 2014. The improvement was primarily due to fees paid on the total return swap in 2014; the total return swap was terminated in the second quarter of 2014 and, therefore, there were no fees on the swap in 2015.

Noninterest Expense

Noninterest expense decreased by $42.4 million, or 9.7%, to $396.1 million in the third quarter of 2015, compared to the same prior year period. The decline in noninterest expense was primarily caused by a decline in debt extinguishment cost and other noninterest expense. The decline was partially offset by an increase in the provision for unfunded lending commitments. The following are major components of noninterest expense line items impacting the third quarter change.

We did not have any debt extinguishment cost in the third quarter of 2015 compared to $44.4 million in the third quarter of 2014 when the Company redeemed approximately $500 million par amount of senior notes through tender offers.

Other noninterest expense for the third quarter of 2015 was $56.3 million, compared to $66.7 million for the same prior year period. The decrease is primarily due to decreased write-downs of the FDIC indemnification asset. The balance of FDIC-supported/PCI loans has declined significantly since the third quarter of 2014, primarily due to paydowns and payoffs. Additionally the decrease was due to a decline in travel expenses as we continue to focus on cost savings across the Company.

For the first nine months of 2015, noninterest expense decreased by $44.9 million, compared to the first nine months of 2014. The decrease was primarily related to a decrease of $42.0 million debt extinguishment cost and $38.2 million in other noninterest expense for the first nine months of 2015, compared to the first nine months of 2014. The decrease in noninterest expense for the first nine months of 2015, compared to the first nine months of

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2014, was partially offset by a $19.0 million increase in salaries and employee benefits. Most of the increase in salaries and employee benefits can be attributed to higher base salaries even though the number of full-time equivalent employees declined by 276 in the third quarter of 2015, compared to the third quarter of 2014. Our overall headcount was 10,219 full-time equivalent employees as of September 30, 2015, compared to 10,495 at September 30, 2014. Staff reductions, primarily at several subsidiary banks, were partially offset by increased headcount in specific areas, including our major systems projects, compliance, and build-out of enterprise risk management and stress-testing functions. As discussed previously, efforts are underway to streamline some of these functions across the Company.

The FDIC has proposed a change in deposit insurance assessments that implements a Dodd-Frank Act provision requiring banks with over $10 billion in assets to be responsible for recapitalizing the FDIC insurance fund to 1.35% of insured deposits by the end of 2018, after it reaches a 1.15% reserve ratio. If the rule is finalized, it may go into effect in the first or second quarter of 2016.

We plan to hold noninterest expense to below $1.6 billion, adjusted for certain expense items, in 2015 and 2016, with a slight increase in 2017. The expense items that we exclude from the targeted noninterest expense of $1.6 billion are the same as those excluded in arriving at the efficiency ratio (see “GAAP to Non-GAAP Reconciliations” on page 90 for more information regarding the calculation of the efficiency ratio).

Income Taxes

Income tax expense for the third quarter of 2015 was $40.8 million, compared to $53.1 million for the same period in 2014. The effective income tax rates for these periods were 28.8% and 35.6%, respectively. The 2015 tax rate was lower primarily due to the recognition of tax credits for certain research and development initiatives and for a project related to alternative energy that was placed in service during the third quarter of 2015. The year-to-date tax rates for 2015 and 2014 were 32.0% and 36.1%, respectively. The 2015 tax rate was lower due to the recognition of tax credits and to an increase in the proportion of nontaxable items relative to pretax income, as well as the 2014 accrual of $2.3 million of interest expense reflected in tax expense.

We had a net deferred tax asset (“DTA”) balance of $201 million at September 30, 2015, compared to $224 million at December 31, 2014. The decrease resulted primarily from items related to loan charge-offs in excess of loan loss provisions, earning differences from equity investments, the payout of accrued compensation, and the realization of losses related to the sale of CDO securities in 2015. The decrease in the DTA was partially offset by decreases in deferred tax liabilities related to premises and equipment and the deferred gain on the Company’s 2009 debt exchange.

Preferred Dividends

On October 19, 2015, we announced the commencement of a $180 million cash tender offer to purchase certain outstanding preferred stock and depositary shares. The ultimate amount purchased will be determined by the success of the tender offer, which will expire on November 16, 2015. Depending upon the total amount and mix of series of preferred stock purchased from this offer, preferred stock dividends during 2016 may be reduced by approximately $10 million.

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BALANCE SHEET ANALYSIS

Interest-Earning Assets

Interest-earning assets are those assets that have interest rates or yields associated with them. One of our goals is to maintain a high level of interest-earning assets relative to total assets while keeping nonearning assets at a minimum. Interest-earning assets consist of money market investments, securities, loans, and leases.

The schedulereferred to in our discussion of net interest income includes the average balances of our interest earning assets, the amount of revenue generated by them, and their respective yields. Another goal is to maintain a higher-yielding mix of interest-earning assets, such as loans, relative to lower-yielding assets, such as money market investments or securities, while maintaining adequate levels of highly liquid assets. The current period of slow economic growth accompanied by the moderate loan demand experienced in recent quarters has made it difficult to achieve these goals. In 2014, we began to incrementally deploy some of our excess cash into short-to-medium duration pass-through U.S. agency securities that qualify as HQLA under new Liquidity Coverage Ratio (“LCR”) and liquidity stress-testing regulations. As a result of this, in the third quarter of 2015, we purchased HQLA securities of $1.6 billion at amortized cost, increasing HQLA securities by $1.4 billion after paydowns and payoffs during the quarter, and we are continuing these purchases.

Average interest-earning assets were $53.9 billion for the first nine months of 2015, compared to $51.7 billion for the first nine months of 2014. Average interest-earning assets as a percentage of total average assets for the first nine months of 2015 were 93.7%, compared to 93.0% in the corresponding prior year period.

Average loans were $40.1 billion and $39.4 billion for the first nine months of 2015 and 2014, respectively. Average loans as a percentage of total average assets for the first nine months of 2015 were 69.7%, compared to 71.0% in the corresponding prior year period.

Average money market investments, consisting of interest-bearing deposits, federal funds sold, and security resell agreements, increased by 4.4% to $8.4 billion for the first nine months of 2015, compared to $8.0 billion for the first nine months of 2014. Average securities increased by 30.4% for the first nine months of 2015, compared to the first nine months of 2014. Average total deposits increased by 5.1% resulting from an increase in noninterest-bearing deposits and savings and money market deposits.

Investment Securities Portfolio

We invest in securities to actively manage liquidity and interest rate risk, in addition to generating revenues for the Company. Refer to the “Liquidity Risk Management” section on page 84 for additional information on management of liquidity and funding and compliance with Basel III and LCR requirements. The following schedule presents a profile of our investment securities portfolio. The amortized cost amounts represent the original cost of the investments, adjusted for related accumulated amortization or accretion of any yield adjustments, and for impairment losses, including credit-related impairment. The estimated fair value measurement levels and methodology are discussed in Note 10of the Notes to Consolidated Financial Statements.

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INVESTMENT SECURITIES PORTFOLIO

	September 30, 2015								December 31, 2014
(In millions)	Par value		Amortized cost		Carrying value		Estimated fair value		Par value		Amortized cost		Carrying value		Estimated fair value
Held-to-maturity
Municipal securities	$	545	$	544	$	544	$	553	$	608	$	608	$	608	$	620
Asset-backed securities:
Trust preferred securities – banks and insurance	—		—		—		—		89		79		39		57
	545		544		544		553		697		687		647		677
Available-for-sale
U.S. Government agencies and corporations:
Agency securities	1,103		1,103		1,110		1,110		606		607		601		601
Agency guaranteed mortgage-backed securities	2,695		2,806		2,813		2,813		899		935		945		945
Small Business Administration loan-backed securities	1,636		1,816		1,819		1,819		1,400		1,544		1,552		1,552
Municipal securities	208		213		213		213		187		189		189		189
Other debt securities	26		25		23		23		—		—		—		—
Asset-backed securities:
Trust preferred securities – banks and insurance	—		—		—		—		659		538		415		415
Other	—		—		—		—		7		6		6		6
	5,668		5,963		5,978		5,978		3,758		3,819		3,708		3,708
Money market mutual funds and other	22		22		22		22		137		137		136		136
	5,690		5,985		6,000		6,000		3,895		3,956		3,844		3,844
Total	$	6,235	$	6,529	$	6,544	$	6,553	$	4,592	$	4,643	$	4,491	$	4,521

The amortized cost of investment securities at September 30, 2015 increased by 40.6% from the balances at December 31, 2014, primarily due to purchases of agency guaranteed mortgage-backed securities. There were additional increases in agency securities and Small Business Administration (“SBA”) loan-backed securities. These increases were partially offset by the sale of the remaining CDO portfolio during the second quarter of 2015.

The investment securities portfolio includes $294 million of net premium almost exclusively from SBA loan-backed securities and agency guaranteed mortgage-backed securities. Recent purchases of these securities have occurred at a premium to the respective par amount. The amortization of these premiums each quarter is dependent upon borrower prepayment behavior. Premium amortization for the third quarter of 2015 was approximately $14 million, compared to approximately $10 million in the second quarter of 2015, and is included in portfolio yields. The increased premium amortization is due to both an increased amount of agency guaranteed mortgage-backed securities and SBA loan-backed securities and changes in prepayment rates of the underlying loans.

During the first quarter of 2015, we reclassified all of the remaining held-to-maturity (“HTM”) CDO securities, or approximately $79 million at amortized cost, to AFS securities. See Note 5 of the Notes to Consolidated Financial Statements for further discussion regarding this reclassification.

As of September 30, 2015, under the GAAP fair value accounting hierarchy, 0.3% of the $6.0 billion fair value of the AFS securities portfolio was valued at Level 1, 99.7% was valued at Level 2, and there were no Level 3 AFS securities as a result of the sale of the remaining CDO securities. At December 31, 2014, 2.7% of the $3.8 billion fair value of AFS securities portfolio was valued at Level 1, 86.8% was valued at Level 2, and 10.5% was valued at Level 3. See Note 10 of the Notes to Consolidated Financial Statements for further discussion of fair value accounting.

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Exposure to State and Local Governments

We provide multiple products and services to state and local governments (referred together as “municipalities”), including deposit services, loans, and investment banking services, and we invest in securities issued by the municipalities.

The following schedule summarizes our exposure to state and local municipalities:

MUNICIPALITIES

(In millions)	September 30, 2015			December 31, 2014
Loans and leases		$	600		$	521
Held-to-maturity – municipal securities		544			608
Available-for-sale – municipal securities		213			189
Available-for-sale – auction rate securities		—			5
Trading account – municipal securities		58			53
Unfunded lending commitments		83			58
Total direct exposure to municipalities		$	1,498		$	1,434

At September 30, 2015, $1.0 million of loans to one municipality were on nonaccrual. A significant amount of the municipal loan and lease portfolio is secured by real estate and equipment, and approximately 86% of the outstanding credits were originated by CB&T, Zions Bank, Vectra, and NBAZ. See Note 6 of the Notes to Consolidated Financial Statements for additional information about the credit quality of these municipal loans.

All municipal securities are reviewed quarterly for OTTI; see Note 5 of the Notes to Consolidated Financial Statements for more information. HTM securities consist of unrated bonds issued by small local government entities. Prior to purchase, the issuers of municipal securities are evaluated by the Company for their creditworthiness, and some of the securities are guaranteed by third parties. As of September 30, 2015, the AFS municipal securities were issued by issuers with investment-grade ratings from one or more major credit rating agencies.

Foreign Exposure and Operations

We have de minimis credit exposure to foreign sovereign risks and we do not believe our total foreign credit exposure is material. We also do not have significant foreign exposure to derivative counterparties. Foreign loans to non-sovereign entities consist primarily of commercial and industrial loans and totaled $183million at September 30, 2015 and $144 million at December 31, 2014.

Our foreign operations are comprised of Amegy Bank operating a branch in Grand Cayman, Grand Cayman Islands, B.W.I. Amegy Bank’s foreign branch only accepts deposits from qualified domestic customers. While deposits in this branch are not subject to FRB reserve requirements, there are no federal or state income tax benefits to the Company as a result of these operations. Foreign deposits were $442 million at September 30, 2015 and $328 million at December 31, 2014.

Loan Portfolio

For the first nine months of 2015 and 2014, average loans accounted for 69.7% and 71.0%, respectively, of total average assets. As presented in the following schedule, commercial and industrial loans were the largest category and constituted 32.5% of our loan portfolio at September 30, 2015.

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LOAN PORTFOLIO

	September 30, 2015				December 31, 2014
(Amounts in millions)	Amount		% of total loans		Amount		% of total loans
Commercial:
Commercial and industrial	$	13,035	32.5	%	$	13,163	32.9	%
Leasing	427		1.1		409		1.0
Owner occupied	7,141		17.8		7,351		18.3
Municipal	600		1.5		521		1.3
Total commercial	21,203		52.9		21,444		53.5
Commercial real estate:
Construction and land development	2,214		5.5		1,986		5.0
Term	8,089		20.2		8,127		20.3
Total commercial real estate	10,303		25.7		10,113		25.3
Consumer:
Home equity credit line	2,347		5.8		2,321		5.8
1-4 family residential	5,269		13.1		5,201		13.0
Construction and other consumer real estate	370		0.9		371		0.9
Bankcard and other revolving plans	428		1.1		401		1.0
Other	193		0.5		213		0.5
Total consumer	8,607		21.4		8,507		21.2
Total net loans	$	40,113	100.0	%	$	40,064	100.0	%

Net loans and leases remained relatively constant at $40.1 billion at September 30, 2015 compared to December 31, 2014.

Most of the loan portfolio growth during the first nine months of 2015 occurred inmunicipal,commercial construction and land development, and 1-4 family residential loans. The impact of these increases was partially offset by decreases in commercial and industrial, commercial owner occupied, and commercial real estate term loans. The loan portfolio increased primarily at CB&T, NBAZ, and Vectra, while balances declined at Amegy Bank and NSB.

Commercial owner occupied loans declined due primarily to the runoff and attrition of the National Real Estate portfolio at Zions Bank, which is expected to continue throughout 2015. The National Real Estate business is a wholesale business that depends on loan referrals from other community banking institutions. Due to generally soft loan demand nationally, many community banking institutions are retaining, rather than selling, their loan production.

We expect slight-to-moderate overall loan and lease growth during the rest of 2015. We also expect to continue to limit construction and land development loan commitment growth for the foreseeable future as part of management’s actions to improve the risk profile of the Company’s loans and to reduce portfolio concentration risk.

Since 2009, CB&T and NSB have had loss sharing agreements with the FDIC that provided indemnification for credit losses of acquired loans and foreclosed assets up to specified thresholds. The last of the agreements for commercial loans, which comprised the major portion of the acquired portfolio, expired as of September 30, 2014. The agreements for 1-4 family residential loans will expire in 2019. In previous periods, the FDIC-supported loan balances were presented separately in schedules within MD&A and in other disclosures, and included purchase credit-impaired (“PCI”) loans, as discussed in Note 6 of the Notes to Consolidated Financial Statements. Due to declining balances, for all periods presented herein, the FDIC-supported/PCI loans have been reclassified to their respective loan segments and classes.

Other Noninterest-Bearing Investments

As part of the Company’s initiative to consolidate its charters into a single charter, the Company will have shares in a single FHLB (Des Moines) and the Company’s subsidiary banks are expected to redeem their shares of the other

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respective FHLBs, most likely in the second quarter of 2016. Our investment balance in Federal Reserve stock is expected to remain relatively stable. The following schedule sets forth the Company’s other noninterest-bearing investments.

OTHER NONINTEREST-BEARING INVESTMENTS

(In millions)	September 30, 2015			December 31, 2014
Bank-owned life insurance		$	482		$	476
Federal Home Loan Bank stock		68			104
Federal Reserve stock		123			121
Farmer Mac stock		29			26
SBIC investments		112			86
Non-SBIC investment funds		28			44
Others		9			9
		$	851		$	866

Premises and Equipment

Premises and equipment increased $44 million, or 5.3%, during the first nine months of 2015 primarily due to capitalized costs associated with the development of a new corporate facility for Amegy Bank in Texas, and additionally from the capitalization of eligible costs related to the development of new lending, deposit and reporting systems.

Deposits

Deposits, both interest-bearing and noninterest-bearing, are a primary source of funding for the Company. Average total deposits for the first nine months of 2015 increased by 5.1%, compared to the first nine months of 2014, with average interest-bearing deposits increasing by 2.0% and average noninterest-bearing deposits increasing by 9.3%. The increase in noninterest-bearing deposits was largely driven by increased deposits from business customers. The average interest rate paid for interest-bearing deposits was 1 bp lower during the third quarter of 2015, compared to the third quarter of 2014.

Deposits at September 30, 2015, excluding time deposits $100,000 and over and brokered deposits, increased by 2.6%, or $1.2 billion, from December 31, 2014. The increase was mainly due to an increase in noninterest-bearing demand deposits, interest-bearing domestic savings and money market, and a slight increase in foreign deposits, offset by a decrease in time deposits under $100,000.

Demand and savings and money market deposits were 94.6% and 94.3% of total deposits at September 30, 2015 and December 31, 2014, respectively.

During the first nine months of 2015, and throughout 2014, we maintained a low level of brokered deposits with the primary purpose of keeping that funding source available in case of a future need. At September 30, 2015 and December 31, 2014, total deposits included $118 million and $108 million, respectively, of brokered deposits.

See “Liquidity Risk Management” on page 84 for additional information on funding and borrowed funds.

RISK ELEMENTS

Since risk is inherent in substantially all of the Company’s operations, management of risk is an integral part of its operations and is also a key determinant of its overall performance. The Board of Directors has appointed a Risk Oversight Committee (“ROC”) that consists of appointed Board members who oversee the Company’s risk management processes. The ROC meets on a regular basis to monitor and review Enterprise Risk Management (“ERM”) activities. As required by its charter, the ROC performs oversight for various ERM activities and approves ERM policies and activities as detailed in the ROC charter.

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Management applies various strategies to reduce the risks to which the Company’s operations are exposed, including credit, interest rate and market, liquidity, and operational risks. These risks are overseen by the various management committees of which the Enterprise Risk Management Committee (“ERMC”) is the focal point for the monitoring and review of enterprise risk.

Credit Risk Management

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 risk arises primarily from the Company’s lending activities, as well as from off-balance sheet credit instruments.

The Board of Directors, through the ROC, is responsible for approving the overall policies relating to the management of the credit risk of the Company. In addition, the ROC oversees and monitors adherence to key policies and the credit risk appetite which is defined in the Risk Appetite Framework. Additionally, the Board has established the Corporate Credit Administration Committee (“CCAC”), consisting of members of management, to which it has delegated the responsibility for managing credit risk for the company.

Centralized oversight of credit risk is provided through credit policies, credit administration, and credit examination functions at the Parent. We separate the lending function from the credit administration function, which strengthens control over, and the independent evaluation of, credit activities. Formal loan policies and procedures provide the Company with a framework for consistent underwriting and a basis for sound credit decisions at the local subsidiary bank level. In addition, we have a well-defined set of standards for evaluating our loan portfolio and we utilize a comprehensive loan grading system to determine the risk potential in the portfolio. Furthermore, an independent internal credit examination department periodically conducts examinations of the Company’s lending departments. These examinations are designed to review credit quality, adequacy of documentation, appropriate loan grading administration, and compliance with lending policies. Reports are submitted to management and to the ROC on a regular basis. New, expanded, or modified products and services, as well as new lines of business, are approved by the corporate New Product Review Committee.

Both the credit policy and the credit examination functions are managed centrally. Each subsidiary bank can be more conservative in its operations under the corporate credit policy; however, formal corporate approval must be obtained if a bank wishes to invoke a more liberal policy. Historically, there have been only a limited number of such approvals. This entire process has been designed to place an emphasis on strong underwriting standards and early detection of potential problem credits in order to develop and implement action plans on a timely basis to mitigate any potential losses.

Our credit risk management strategy includes diversification of our loan portfolio. We attempt to avoid the risk of an undue concentration of credits in a particular collateral type or with an individual customer or counterparty. Generally, our loan portfolio is well diversified; however, due to the nature of our geographical footprint, there are certain significant concentrations primarily in commercial real estate (“CRE”) and energy-related lending. 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. The recent growth in construction and land development loan commitments is within the established concentration limits. Our business activity is primarily with customers located within the geographical footprint of our subsidiary banks.

The credit quality of our loan portfolio remained generally strong during the first nine months of 2015, although we have recently experienced deterioration in various credit quality metrics primarily associated with energy-related loans at Amegy Bank. Nonperforming assets as a percentage of loans and leases and OREO increased slightly to 0.92% at September 30, 2015, compared to 0.81% at December 31, 2014. Gross charge-offs for the third quarter of 2015 increased to $42.4 million from $35.5 million in the fourth quarter of 2014. Net charge-offs increased to $31.2 million from $17.2 million for the same periods, primarily due to deterioration in energy-related loans.

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Government Agency Guaranteed Loans

We participate in various guaranteed lending programs sponsored by U.S. government agencies, such as the SBA, FDIC, Federal Housing Authority, Veterans’ Administration, Export-Import Bank of the U.S., and the U.S. Department of Agriculture. As of September 30, 2015, the guaranteed portion of these loans was approximately $421 million. Most of these loans were guaranteed by the SBA.

The following schedule presents the composition of government agency guaranteed loans.

GOVERNMENT GUARANTEES

(Amounts in millions)	September 30, 2015			Percent guaranteed			December 31, 2014			Percent guaranteed
Commercial		$	520		76	%		$	539		76	%
Commercial real estate		18			77			19			77
Consumer		15			88			17			86
Total loans		$	553		76	%		$	575		76	%

Commercial Lending

The following schedule provides selected information regarding lending concentrations to certain industries in our commercial lending portfolio.

COMMERCIAL LENDING BY INDUSTRY GROUP

	September 30, 2015				December 31, 2014
(Amounts in millions)	Amount		Percent		Amount		Percent
Real estate, rental and leasing	$	2,387	11.3	%	$	2,418	11.4	%
Manufacturing	2,344		11.0		2,305		10.7
Mining, quarrying and oil and gas extraction 1	1,965		9.3		2,277		10.6
Retail trade	1,942		9.2		1,924		9.0
Wholesale trade	1,647		7.8		1,638		7.6
Healthcare and social assistance	1,315		6.2		1,347		6.3
Finance and insurance	1,287		6.1		1,168		5.5
Transportation and warehousing	1,170		5.5		1,294		6.0
Construction	1,060		5.0		1,027		4.8
Accommodation and food services	946		4.4		911		4.2
Professional, scientific and technical services	876		4.1		884		4.1
Other 2	4,265		20.1		4,251		19.8
Total	$	21,204	100.0	%	$	21,444	100.0	%

¹  Certain energy-related market segments (e.g. energy services) are also represented in other industry groups within this schedule.

²  No other industry group exceeds 4%.

Energy-Related Exposure

Various industries represented in the previous schedule, including mining, quarrying and oil and gas extraction; manufacturing; and transportation and warehousing, contain certain loans we categorize as energy-related. At September 30, 2015, we had approximately $5.4 billion of total energy-related credit exposure and $2.8 billion of primarily oil and gas energy-related loan balances.

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The distribution of energy-related loans by customer market segment is shown in the following schedule:

ENERGY-RELATED EXPOSURE ¹ 

				% of total oil and gas- related					% of total oil and gas- related					% of total oil and gas- related
(Amounts in millions)	September 30, 2015					June 30, 2015					March 31, 2015
Loans and leases
Oil and gas-related:
Upstream – exploration and production		$	924	33	%		$	954	33	%		$	1,078	34	%
Midstream – marketing and transportation		626		22			589		20			654		21
Downstream – refining		124		5			131		5			140		4
Other non-services		55		2			75		3			57		2
Oilfield services		825		29			879		30			959		30
Energy service manufacturing		251		9			255		9			269		9
Total oil and gas-related		2,805		100	%		2,883		100	%		3,157		100	%
Alternative energy		214					222					232
Total loans and leases		3,019					3,105					3,389
Unfunded lending commitments		2,364					2,403					2,451
Total credit exposure		$	5,383				$	5,508				$	5,840
Private equity investments		$	17				$	18				$	20

Credit quality measures of oil and gas
Classified loan ratio	15.7	%	11.3	%	9.3	%
Nonperforming loan ratio	3.0	%	2.3	%	2.1	%
Net charge-off ratio, annualized	2.4	%	—	%	0.3	%

¹  Because many borrowers operate in multiple businesses, judgment has been applied in characterizing a borrower as energy-related, including a particular segment of energy-related activity, e.g., upstream or downstream.

During the third quarter of 2015, our overall balance of oil and gas-related loans decreased 2.7% to $2.8 billion, compared to a decrease of 8.7% during the second quarter of 2015. In the third quarter of 2015, exploration and production loan balances decreased 3.1%, compared to a decrease of 11.6% in the second quarter of 2015. Energy service loan balances declined 5.1% in the third quarter of 2015, compared to a decrease of 7.6% in the second quarter of 2015. Unfunded energy-related lending commitments declined by $39 million, or 1.6%, during the third quarter of 2015, compared to a decline of $48 million, or 2.0%, during the second quarter of 2015. The decline in oil and gas-related credit exposure during the third quarter was consistent with expectations, and further attrition over the next several quarters is likely.

Our assessment of credit quality of the energy loan portfolio was consistent with the second quarter of 2015. At September 30, 2015, approximately $84.5 million, or 3.0%, of the energy-related loan balances were nonaccruing; an increase from June 30, 2015, when $66.4 million, or 2.3%, were nonaccruing. Approximately 45% of energy-related nonaccruing loans were current as to principal and interest payments at September 30, 2015, down from approximately 87% at June 30, 2015.

Classified energy-related credits increased to $441.4 million at September 30, 2015, from $324.8 million at June 30, 2015. Energy loan net charge-offs were $16.9 million in the third quarter of 2015, compared to none in the second quarter. Generally consistent with expectations, the majority of loan downgrades in the third quarter reflected deterioration in the financial condition of oilfield services companies and, to a lesser degree, a small number of downgrades in the upstream portfolio. Further downgrades are likely; however, the Company currently believes it has established an appropriate reserve for the portfolio. The pattern of a significant increase in graded or classified energy loans as well as the increase in nonaccrual energy loans is generally consistent with prior cycles.

Our historical energy lending performance has been strong despite significant volatility in both oil and natural gas prices. Losses following the 2008-2009 period of oil and gas price declines and volatility were modest. Energy-

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related classified loans increased significantly during this last economic downturn, nonperforming loans increased much more modestly, and annual losses were relatively minor (approximately 1% in the peak year of 2010). Our cumulative energy-related net charge-offs over the last five years have been lower than the cumulative net loss rate of general commercial and industrial lending during that same period.

Upstream

Upstream exploration and production loans comprised approximately 33% of the energy-related exposure at both September 30 and June 30, 2015. Many upstream borrowers have relatively balanced production between oil and gas.

We use disciplined underwriting practices to mitigate the risk associated with upstream lending activities. Upstream loans are made to reserve-based borrowers where approximately 90% of those loans are collateralized by the value of the borrower’s oil and gas reserves. Our oil and gas price deck, the pricing applied to a borrower’s reserves for underwriting purposes, has generally been below the NYMEX strip, i.e., the average of the daily settlement prices of the next 12 months’ futures contracts. Through the use of independent and third party engineers and conservative underwriting, we apply multiple discounts. These discounts often range from 10-40% of the value of the collateral in determining the borrowing base (commitment), and help protect credit quality against significant commodity price declines. Further, reserve-based commitments are subject to a borrowing base redetermination based on then-current energy prices, typically every six months. Generally, we have, at our option, the right to conduct additional redeterminations during the year. Borrowing bases for clients are usually set at 60-70% of available collateral after an adjustment for the discounts described above.

Upstream borrowers generally do not draw the maximum available funding on their lines, which provides the borrower additional liquidity and flexibility. The line utilization rate for upstream borrowers was approximately 61% at both September 30 and June 30, 2015. This unused commitment gives us the ability in some cases to reduce the borrowing base commitment through the redetermination process without creating a borrowing base deficiency (where outstanding debt exceeds the new borrowing base). Nevertheless, our loan agreements generally require the borrowers to maintain a certain amount of equity. Therefore, if the loan to collateral value exceeds an acceptable limit, we work with the borrowers to reinstate an acceptable collateral-value threshold.

An additional metric we consider in our underwriting is a borrower’s oil and gas price hedging practices. A considerable portion of our reserve-based borrowers are hedged. Of the upstream borrower’s risk-based estimated oil production projected in 2015, approximately 55% is hedged based on weighted average commitments and the latest data provided by the borrowers.

Midstream

Midstream marketing and transportation loans comprised approximately 22% of our energy-related exposure as of September 30, 2015, compared to 20% as of June 30, 2015. Loans in this segment are made to companies that gather, transport, treat and blend oil and natural gas, or that provide services to similar companies. The assets owned by these borrowers, which make this activity possible, are field-level gathering systems (small diameter pipe), pipelines (medium/large diameter pipe), tanks, trucks, rail cars, various water-based vessels, and natural gas treatment plants. Our midstream loans are secured by these assets, unless the borrower is rated investment-grade. A significant portion of our midstream borrowers’ revenues are derived from fee-based contracts, giving them limited exposure to commodity price risk. Since lower oil and gas prices slow the drilling and development of new oil and natural gas, but do not normally result in significant numbers of producing wells being shut in, volumes of oil and gas flowing through midstream systems usually remain relatively stable throughout oil and natural gas price cycles. During the 2008-2009 period of oil and gas price volatility, classified loans in the midstream segment peaked at a lower level than the upstream and energy services segments.

Energy Services

Energy service loans, which include oilfield services and energy service manufacturing comprised approximately 38% of our energy-related exposure as of September 30, 2015, compared to 39% as of June 30, 2015. Energy service loans include borrowers that have a concentration of revenues in the energy industry. However, many of

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these borrowers provide a broad range of products and services to the energy industry and are not subject to the same volatility as new drilling activities. Many of these borrowers are diversified geographically and service both oil and gas-related drilling and production.

For energy service loans, underwriting criteria require lower leverage to compensate for the cyclical nature of the industry. During the underwriting process, we use sensitivity analysis to consider revenue and cash flow impacts resulting from oil and gas price cycles. Generally, we underwrite energy service loans to withstand a 20-50% decline in cash flows, with higher discounts for those borrowers subject to greater cyclicality.

Risk Management of the Energy-Related Portfolio

We apply concentration limits and disciplined underwriting to the entire energy-related portfolio to limit our risk exposure. Concentration limits on energy-related lending, coupled with adherence to our underwriting standards, served to constrain loan growth during the past several quarters. As an indicator of the diversity in the size of our energy-related portfolio’s size, the average amount of our commitments is approximately $7 million, with approximately 64% of the commitments less than $30 million. The portfolio contains only senior loans – no junior or second lien positions; additionally, we cautiously approach making first-lien loans to borrowers that employ excessive leverage through the use of junior lien loans or unsecured layers of debt. Approximately 90% of the total energy-related portfolio is secured by reserves, equipment, real estate, and other collateral, or a combination of collateral types. Lending arrangements not secured are generally to investment-grade borrowers.

We participate as a lender in loans and commitments designated as Shared National Credits (“SNCs”), which generally consist of larger and more diversified borrowers that have better access to capital markets. SNCs are loans or loan commitments of at least $20 million that are shared by three or more federally supervised institutions. The percentage of SNCs is approximately 80% of the upstream portfolio, 79% of the midstream portfolio, and 51% of the energy services portfolio. Our bankers have direct access and contact with the management of these SNC borrowers, and as such, are active participants. In many cases, we provide ancillary banking services to these borrowers, further evidencing this direct relationship.

As a secondary source of support, many of our energy-related borrowers have access to capital markets and private equity sources. Private sponsors tend to be large funds, often with assets under management of more than $1 billion, managed by individuals with a great deal of energy expertise and experience and who have successfully managed energy investments through previous energy price cycles. The investors in the funds are primarily institutional investors, such as large pensions, foundations, trusts, and high net worth family offices.

We expect some further downgrades in the energy portfolio as we begin to see third and fourth quarter results from the oilfield services companies, although we currently believe we have appropriately reserved for these downgrades. The deterioration of energy credits is transpiring consistently with our outlook and expectations from the fourth quarter of 2014; although, future energy price volatility may result in further credit deterioration. When establishing the level of the ACL, we consider multiple factors, including reduced drilling activity and additional capital raises. Since September 30, 2014, when energy prices began to decline significantly, Amegy Bank has increased its ACL by $68 million. During the third quarter of 2015, we increased the ACL on the energy portfolio in part due to the decline in energy prices during the third quarter. This contributed to an increased provision for loan losses during the third quarter.

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Commercial Real Estate Loans

Selected information indicative of credit quality regarding our CRE loan portfolio is presented in the following schedule.

COMMERCIAL REAL ESTATE PORTFOLIO BY LOAN TYPE AND COLLATERAL LOCATION

(Amounts in millions)		Collateral Location
Loan type	As of date	Arizona			California			Colorado			Nevada			Texas			Utah/ Idaho			Wash-ington			Other 1			Total			% of  total CRE
Commercial term
Balance outstanding	9/30/2015	$	1,101		$	2,776		$	361		$	548		$	1,335		$	1,137		$	253		$	578		$	8,089		78.5	%
% of loan type		13.6		%	34.3		%	4.5		%	6.8		%	16.5		%	14.1		%	3.1		%	7.1		%	100.0		%
Delinquency rates 2:
30-89 days	9/30/2015	0.4		%	0.1		%	0.5		%	0.3		%	0.2		%	—		%	0.2		%	0.4		%	0.2		%
	12/31/2014	—		%	0.1		%	—		%	0.4		%	—		%	0.6		%	0.3		%	0.2		%	0.2		%
≥ 90 days	9/30/2015	—		%	0.5		%	2.1		%	0.1		%	0.1		%	0.3		%	0.9		%	1.0		%	0.4		%
	12/31/2014	0.1		%	0.6		%	—		%	0.6		%	0.1		%	0.3		%	0.3		%	1.0		%	0.4		%
Accruing loans past due 90 days or more	9/30/2015	$	—		$	13		$	—		$	1		$	—		$	3		$	2		$	2		$	21
	12/31/2014	—			12			—			3			—			3			1			1			20
Nonaccrual loans	9/30/2015	$	5		$	5		$	8		$	2		$	5		$	5		$	—		$	9		$	39
	12/31/2014	2			8			1			1			2			1			—			10			25
Residential construction and land development
Balance outstanding	9/30/2015	$	60		$	353		$	72		$	6		$	256		$	66		$	13		$	8		$	834		8.1	%
% of loan type		7.2		%	42.3		%	8.6		%	0.7		%	30.7		%	7.9		%	1.6		%	1.0		%	100.0		%
Delinquency rates 2:
30-89 days	9/30/2015	1.7		%	0.5		%	0.7		%	—		%	1.8		%	—		%	—		%	—		%	1.0		%
	12/31/2014	—		%	—		%	—		%	—		%	—		%	—		%	—		%	—		%	—		%
≥ 90 days	9/30/2015	—		%	—		%	—		%	—		%	—		%	—		%	—		%	—		%	—		%
	12/31/2014	—		%	—		%	—		%	—		%	2.6		%	—		%	—		%	—		%	0.8		%
Accruing loans past due 90 days or more	9/30/2015	$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	—
	12/31/2014	—			—			—			—			—			—			—			—			—
Nonaccrual loans	9/30/2015	$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	—
	12/31/2014	—			—			—			—			7			—			—			—			7
Commercial construction and land development
Balance outstanding	9/30/2015	$	88		$	221		$	125		$	62		$	492		$	304		$	23		$	65		$	1,380		13.4	%
% of loan type		6.4		%	16.0		%	9.1		%	4.5		%	35.7		%	22.0		%	1.6		%	4.7		%	100.0		%
Delinquency rates 2:
30-89 days	9/30/2015	0.1		%	0.5		%	—		%	1.2		%	0.3		%	0.3		%	—		%	—		%	0.3		%
	12/31/2014	—		%	0.5		%	0.1		%	—		%	0.2		%	0.1		%	—		%	—		%	0.2		%
≥ 90 days	9/30/2015	—		%	1.0		%	—		%	—		%	0.7		%	—		%	—		%	—		%	0.4		%
	12/31/2014	—		%	0.9		%	—		%	—		%	0.9		%	—		%	—		%	—		%	0.5		%
Accruing loans past due 90 days or more	9/30/2015	$	—		$	2		$	—		$	—		$	—		$	—		$	—		$	—		$	2
	12/31/2014	—			—			—			—			—			—			—			—			—
Nonaccrual loans	9/30/2015	$	—		$	—		$	—		$	1		$	4		$	10		$	—		$	—		$	15
	12/31/2014	—			2			—			—			4			11			—			—			17
Total construction and land development	9/30/2015	$	148		$	574		$	197		$	68		$	748		$	370		$	36		$	73		$	2,214
Total commercial real estate	9/30/2015	$	1,249		$	3,350		$	558		$	616		$	2,083		$	1,507		$	289		$	651		$	10,303		100.0	%

¹  No other geography exceeds $79 million for all three loan types.

²  Delinquency rates include nonaccrual loans.

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Approximately 22% of the CRE term loans consist of mini-perm loans as of September 30, 2015. For such loans, construction has been completed and the project has stabilized to a level that supports the granting of a mini-perm loan in accordance with our underwriting standards. Mini-perm loans generally have initial maturities of three to seven years. The remaining 78% of CRE loans are term loans with initial maturities generally of 5 to 20 years. The stabilization criteria for a project to qualify for a term loan differ by product type and include criteria related to the cash flow generated by the project, loan-to-value ratio, and occupancy rates.

Approximately $184 million, or 13%, of the commercial construction and land development portfolio at September 30, 2015 consists of acquisition and development loans. Most of these acquisition and development loans are secured by specific retail, apartment, office, or other projects. Underwriting on commercial properties is primarily based on the economic viability of the project with heavy consideration given to the creditworthiness and experience of the sponsor. We generally require that the owner’s equity be injected prior to bank advances. Remargining requirements (required equity infusions upon a decline in value of the collateral) are often included in the loan agreement along with guarantees of the sponsor. Recognizing that debt is paid via cash flow, the projected cash flows of the project are critical in the underwriting because these determine the ultimate value of the property and its ability to service debt. Therefore, in most projects (with the exception of multifamily projects) we look for substantial pre-leasing in our underwriting and we generally require a minimum projected stabilized debt service coverage ratio of 1.20 or higher, depending on the project asset class.

Within the residential construction and development sector, many of the requirements previously mentioned, such as creditworthiness and experience of the developer, up-front injection of the developer’s equity, principal curtailment requirements, and the viability of the project are also important in underwriting a residential development loan. Significant consideration is given to the likely market acceptance of the product, location, strength of the developer, and the ability of the developer to stay within budget. Progress inspections by qualified independent inspectors are routinely performed before disbursements are made.

Real estate appraisals are ordered and validated independent of the loan officer and the borrower, generally by each bank’s internal appraisal review function, which is staffed by licensed appraisers. In some cases, reports from automated valuation services are used. Appraisals are ordered from outside appraisers at the inception, renewal or, for CRE loans, upon the occurrence of any event causing a downgrade to an adverse grade (i.e., “criticized” or “classified”). We increase the frequency of obtaining updated appraisals for adversely graded credits when declining market conditions exist.

Advance rates (i.e., loan commitments) will vary based on the viability of the project and the creditworthiness of the sponsor, but our guidelines generally limit advances to 50% for raw land, 65% for land development, 65% for finished commercial lots, 75% for finished residential lots, 80% for pre-sold homes, 75% for models and homes not under contract, and 75% for commercial properties. Exceptions may be granted on a case-by-case basis.

Loan agreements require regular financial information on the project and the sponsor in addition to lease schedules, rent rolls and, on construction projects, independent progress inspection reports. The receipt of this financial information is monitored and calculations are made to determine adherence to the covenants set forth in the loan agreement. Additionally, loan-by-loan reviews of pass grade loans for all commercial and residential construction and land development loans are performed semiannually at all subsidiary banks except TCBW, which performs such reviews annually.

CRE loans are sometimes modified to increase the likelihood of collecting the maximum possible amount of our investment in the loan. In general, the existence of a guarantee that improves the likelihood of repayment is taken into consideration when analyzing a loan for impairment. If the support of the guarantor is quantifiable and documented, it is included in the potential cash flows and liquidity available for debt repayment and our impairment methodology takes into consideration this repayment source.

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Additionally, when we modify or extend a loan, we give consideration to whether the borrower is in financial difficulty, and whether we have granted a concession. In determining if an interest rate concession has been granted, we consider whether the interest rate on the modified loan is equivalent to current market rates for new debt with similar risk characteristics. If the rate in the modification is less than current market rates, it may indicate that a concession was granted and impairment exists. However, if additional collateral is obtained or if a strong guarantor exists who is believed to be able and willing to support the loan on an extended basis, we also consider the nature and amount of the additional collateral and guarantees in the ultimate determination of whether a concession has been granted.

In general, we obtain and consider updated financial information for the guarantor as part of our determination to extend a loan. The quality and frequency of financial reporting collected and analyzed varies depending on the contractual requirements for reporting, the size of the transaction, and the strength of the guarantor.

Complete underwriting of the guarantor includes, but is not limited to, an analysis of the guarantor’s current financial statements, leverage, liquidity, global cash flow, global debt service coverage, contingent liabilities, etc. The assessment also includes a qualitative analysis of the guarantor’s willingness to perform in the event of a problem and demonstrated history of performing in similar situations. Additional analysis may include personal financial statements, tax returns, liquidity (brokerage) confirmations, and other reports, as appropriate.

A qualitative assessment is performed on a case-by-case basis to evaluate the guarantor’s experience, performance track record, reputation, performance of other related projects with which we are familiar, and willingness to work with us. We also utilize market information sources, rating, and scoring services in our assessment. This qualitative analysis coupled with a documented quantitative ability to support the loan may result in a higher-quality internal loan grade, which may reduce the level of allowance we estimate. Previous documentation of the guarantor’s financial ability to support the loan is discounted if there is any indication of a lack of willingness by the guarantor to support the loan.

In the event of default, we evaluate the pursuit of any and all appropriate potential sources of repayment, which may come from multiple sources, including the guarantee. A number of factors are considered when deciding whether or not to pursue a guarantor, including, but not limited to, the value and liquidity of other sources of repayment (collateral), the financial strength and liquidity of the guarantor, possible statutory limitations (e.g., single action rule on real estate) and the overall cost of pursuing a guarantee compared to the ultimate amount we may be able to recover. In other instances, the guarantor may voluntarily support a loan without any formal pursuit of remedies.

Consumer Loans

We have mainly been an originator of first and second mortgages, generally considered to be of prime quality. Historically, our practice has been to sell “conforming” fixed-rate loans to third parties, including Fannie Mae and Freddie Mac, for which we make representations and warranties that the loans meet certain underwriting and collateral documentation standards. It has also been our practice historically to hold variable rate loans in our portfolio. We actively monitor loan “put-backs” (required repurchases of loans previously sold to Fannie Mae or Freddie Mac due to inadequate documentation or other reasons). Loan put-backs have been minimal over a multiple-year period. We estimate that we do not have any material risk as a result of either our foreclosure practices or loan put-backs and we have not established any reserves related to these items.

We are engaged in home equity credit line (“HECL”) lending. At September 30, 2015, our HECL portfolio totaled $2.3 billion. Approximately $1.2 billion of the portfolio is secured by first deeds of trust, while the remaining $1.1 billion is secured by junior liens.

As of September 30, 2015, loans representing approximately 2% of the outstanding balance in the HECL portfolio were estimated to have combined loan-to-value ratios (“CLTV”) above 100%. An estimated CLTV ratio is the ratio of our loan plus any prior lien amounts divided by the estimated current collateral value. At origination,

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underwriting standards for the HECL portfolio generally include a maximum 80% CLTV with high credit scores at origination.

Approximately 95% of our HECL portfolio is still in the draw period, and approximately 32% is scheduled to begin amortizing within the next five years. We regularly analyze the risk of borrower default in the event of a loan becoming fully amortizing and the risk of higher interest rates. The analysis indicates that the risk of loss from this factor is minimal in the current economic environment. For the first nine months of 2015 and 2014, the annualized credit losses for the HECL portfolio were -3 bps and 6 bps, respectively. See Note 6 of the Notes to Consolidated Financial Statements for additional information on the credit quality of this portfolio.

Nonperforming Assets

Nonperforming assets as a percentage of loans and leases and OREO increased slightly to 0.92% at September 30, 2015, compared to 0.81% at December 31, 2014.

Total nonaccrual loans at September 30, 2015 increased by $52.6 million from December 31, 2014. The increase is primarily due to increases in energy-related loans at Amegy Bank, the vast majority of which are current with payments, while other commercial and industrial loans, and commercial real estate term loans also experienced modest increases. Aside from Amegy Bank, the largest total increases in nonaccrual loans occurred at Zions Bank, NBAZ and Vectra.

The balance of nonaccrual loans can decrease due to paydowns, charge-offs, and the return of loans to accrual status under certain conditions. If a nonaccrual loan is refinanced or restructured, the new note is immediately placed on nonaccrual. If a restructured loan performs under the new terms for at least a period of six months, the loan can be considered for return to accrual status. See “Restructured Loans” following for more information. Company policy does not allow for the conversion of nonaccrual construction and land development loans to commercial real estate term loans. See Note 6 of the Notes to Consolidated Financial Statements for more information.

The following schedule sets forth our nonperforming assets:

NONPERFORMING ASSETS

(Amounts in millions)	September 30, 2015			December 31, 2014
Nonaccrual loans 1	$	359		$	307
Other real estate owned	13			19
Total nonperforming assets	$	372		$	326
Ratio of nonperforming assets to net loans and leases1 and other real estate owned	0.92		%	0.81		%
Accruing loans past due 90 days or more	$	35		$	29
Ratio of accruing loans past due 90 days or more to loans and leases1	0.09		%	0.07		%
Nonaccrual loans and accruing loans past due 90 days or more	$	394		$	336
Ratio of nonaccrual loans and accruing loans past due 90 days or more to loans and leases1	0.98		%	0.84		%
Accruing loans past due 30-89 days	$	118		$	86
Nonaccrual loans current as to principal and interest payments	53.9		%	50.4		%

¹ Includes loans held for sale.

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Restructured Loans

TDRs are loans that have been modified to accommodate a borrower who is experiencing financial difficulties, and for whom we have granted a concession that we would not otherwise consider. TDRs declined 17% during the first nine months of 2015, mainly due to payments and payoffs. Commercial loans may be modified to provide the borrower more time to complete the project, to achieve a higher lease-up percentage, to sell the property, or for other reasons. Consumer loan TDRs represent loan modifications in which a concession has been granted to the borrower who is unable to refinance the loan with another lender, or who is experiencing economic hardship. Such consumer loan TDRs may include first-lien residential mortgage loans and home equity loans.

For certain TDRs, we split the loan into two new notes – an “A” note and a “B” note. The A note is structured to comply with our current lending standards at current market rates, and is tailored to suit the customer’s ability to make timely principal and interest payments. The B note includes the granting of the concession to the borrower and varies by situation. We may defer principal and interest payments on the B note until the A note has been paid in full. At the time of restructuring, the A note is identified and classified as a TDR. The B note is charged off, but the obligation is not forgiven to the borrower, and any payments collected on the B note are accounted for as recoveries. The outstanding carrying value of loans restructured using the A/B note strategy was approximately $79 million at September 30, 2015 and $112 million at December 31, 2014.

If the restructured loan performs for at least six months according to the modified terms, and an analysis of the customer’s financial condition indicates that we are reasonably assured of repayment of the modified principal and interest, the loan may be returned to accrual status. The borrower’s payment performance prior to and following the restructuring is taken into account to determine whether a loan should be returned to accrual status.

ACCRUING AND NONACCRUING TROUBLED DEBT RESTRUCTURED LOANS

	September 30, 2015			December 31, 2014
(In millions)
Restructured loans – accruing		$	178		$	245
Restructured loans – nonaccruing		108			98
Total		$	286		$	343

In the periods following the calendar year in which a loan was restructured, a loan may no longer be reported as a TDR if it is on accrual, is in compliance with its modified terms, and yields a market rate (as determined and documented at the time of the modification or restructure). Company policy requires that the removal of TDR status be approved at the same management level that approved the upgrading of a loan’s classification. See Note 6 of the Notes to Consolidated Financial Statements for additional information regarding TDRs.

TROUBLED DEBT RESTRUCTURED LOANS ROLLFORWARD

	Three Months Ended September 30,						Nine Months Ended September 30,
(In millions)	2015			2014			2015			2014
Balance at beginning of period	$	298		$	423		$	343		$	481
New identified TDRs and principal increases	31			17			83			71
Payments and payoffs	(27		)	(53		)	(115		)	(125		)
Charge-offs	(6		)	(2		)	(11		)	(4		)
No longer reported as TDRs	(10		)	(7		)	(12		)	(32		)
Sales and other	—			(3		)	(2		)	(16		)
Balance at end of period	$	286		$	375		$	286		$	375

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Allowance and Reserve for Credit Losses

In analyzing the adequacy of the allowance for loan losses, we utilize a comprehensive loan grading system to determine the risk potential in the portfolio and also consider the results of independent internal credit reviews. To determine the adequacy of the allowance, our loan and lease portfolio is broken into segments based on loan type.

The following schedule shows the changes in the allowance for loan losses and a summary of loan loss experience:

SUMMARY OF LOAN LOSS EXPERIENCE

(Amounts in millions)	Nine Months Ended September 30, 2015			Twelve Months Ended December 31, 2014			Nine Months Ended September 30, 2014
Loans and leases outstanding (net of unearned income)	$	40,113		$	40,064		$	39,740
Average loans and leases outstanding (net of unearned income)	$	40,111		$	39,523		$	39,414
Allowance for loan losses:
Balance at beginning of period	$	605		$	746		$	746
Provision charged (credited) to earnings	17			(98		)	(110		)
Adjustment for FDIC-supported/PCI loans	—			(1		)	(1		)
Charge-offs:
Commercial	(77		)	(77		)	(46		)
Commercial real estate	(6		)	(15		)	(14		)
Consumer	(10		)	(14		)	(10		)
Total	(93		)	(106		)	(70		)
Recoveries:
Commercial	39			41			28
Commercial real estate	21			12			9
Consumer	8			11			8
Total	68			64			45
Net loan and lease charge-offs	(25		)	(42		)	(25		)
Balance at end of period	$	597		$	605		$	610
Ratio of annualized net charge-offs to average loans and leases	0.08		%	0.11		%	0.08		%
Ratio of allowance for loan losses to net loans and leases, at period end	1.49		%	1.51		%	1.53		%
Ratio of allowance for loan losses to nonperforming loans, at period end	166.01		%	197.18		%	198.64		%
Ratio of allowance for loan losses to nonaccrual loans and accruing loans past due 90 days or more, at period end	151.33		%	180.03		%	180.56		%

The total ALLL decreased slightly during the first nine months of 2015 by $8.2 million. We increased the ALLL on our energy portfolio in part due to the decline in energy prices during the third quarter. This increase was partially offset by a reduction in the ALLL elsewhere, which was due to favorable changes in credit quality outside of the energy industry.

The RULC represents a reserve for potential losses associated with off-balance sheet commitments and standby letters of credit. The reserve is separately shown in the balance sheet and any related increases or decreases in the reserve are shown separately in the statement of income. At September 30, 2015, the reserve remained stable compared to December 31, 2014, and increased by $2.0 million from September 30, 2014.

See Note 6 of the Notes to Consolidated Financial Statements for additional information related to the ACL and credit trends experienced in each portfolio segment.

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Interest Rate and Market Risk Management

Interest rate and market risk are managed centrally. The Board of Directors is responsible for approving the overall policies relating to the management of the financial risk of the Company, including interest rate and market risk management. In addition, the Board establishes and periodically revises policy limits and reviews limit exceptions reported by management. The Board has established the Asset/Liability Committee (“ALCO”), consisting of members of management, to which it has delegated the responsibility of managing interest rate and market risk for the Company.

Interest Rate Risk

Interest rate risk is one of the most significant risks to which we are regularly exposed. In general, our goal in managing interest rate risk is to have net interest income increase in a rising interest rate environment. We refer to this goal as being “asset-sensitive.” This approach is based on our belief that in a rising interest rate environment, the market cost of equity, or implied rate at which future earnings are discounted, would also tend to rise.

Due to the low level of rates and the natural lower bound of zero for market indices, there is limited sensitivity to falling rates at the current time, and we have tended to operate near interest rate risk “triggers” and appetites to be appropriately positioned in light of prevailing market conditions in order to maximize shareholder value. However, if interest rates remain at their current historically low levels, given our asset sensitivity, we would expect the net interest margin to be under continuing modest pressure assuming a balance sheet that is static in size. In order to mitigate this pressure and to increase holdings in HQLA securities, in 2014, we began deploying cash into short-to-medium duration agency pass-through securities. In the third quarter of 2015, we purchased HQLA securities of $1.6 billion at amortized cost, increasing HQLA securities by $1.4 billion after paydowns and payoffs during the quarter, and we are continuing these purchases. Additionally, we have increased the use of interest rate swaps designated as cash flow hedges to synthetically convert floating-rate assets to fixed-rate. Over time these actions are expected to somewhat reduce our asset sensitivity compared to previous periods, while improving current earnings.

Interest Rate Risk Measurement

We monitor interest rate risk through the use of two complementary measurement methods: net interest income simulation and Economic Value of Equity at Risk (“EVE”). In the net interest income simulation method, we analyze the expected change in net interest income in response to changes in interest rates. In the EVE method, we measure the expected changes in the fair value of equity in response to changes in interest rates.

Net interest income simulation is an estimate of the total net interest income that would be recognized under different rate environments. Net interest income is measured under several parallel and nonparallel interest rate environments and deposit repricing assumptions, taking into account an estimate of the possible exercise of embedded options within the portfolio (e.g., a borrower’s ability to refinance a loan under a lower rate environment). Our policy contains a trigger for a 10% decline in rate sensitive income as well as a risk capacity of a 13% decline if rates were to immediately rise or fall in parallel by 200 bps. This trigger and risk capacity apply to both the fast and the slow deposit assumptions.

EVE is calculated as the fair value of all assets minus the fair value of liabilities. We measure changes in the dollar amount of EVE for parallel shifts in interest rates. Due to embedded optionality and asymmetric rate risk, changes in EVE can be useful in quantifying risks not apparent for small rate changes. Examples of such risks may include out-of-the-money interest rate caps (or limits) on loans, which have little effect under small rate movements but may become important if large rate changes were to occur, or substantial prepayment deceleration for low rate mortgages in a higher rate environment.

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The following schedule presents the formal EVE limits adopted by the Company. Exceptions to the EVE limits are subject to notification and approval by the ROC. In the normal course of business, the Company evaluated its limits and made changes to reflect its current balance sheet management objectives. These changes are reflected in the following schedule.

ECONOMIC VALUE OF EQUITY DECLINE LIMITS

Parallel change in interest rates	Trigger decline in EVE		Risk capacity decline in EVE
+/- 200 bps	8	%	10	%
+/- 400 bps	21	%	25	%

New Interest Rate Risk Model and Comparisons

In the first quarter of 2015, we adopted a new model to estimate the impact to net interest income and to EVE from changes in interest rates. We made the change because the new model is believed to better reflect customer behavior, particularly with regard to dynamic prepayment speeds (i.e., incrementally slower prepayment speeds on mortgages with incrementally higher interest rate changes) and deposit characteristics (i.e., faster deposit product migration to interest-bearing accounts for larger deposit balances). We ran both models in parallel for several months and members of ALCO scrutinized the results. Additionally, rigorous statistical validation of the new model was conducted prior to its adoption.

Regardless of the model used, estimating the impact on net interest income and EVE requires that we assess a number of variables and make various assumptions in managing our exposure to changes in interest rates. The assessments address deposit withdrawals and deposit product migration (e.g., customers moving money from checking accounts to certificates of deposit), competitive pricing (e.g., existing loans and deposits are assumed to roll into new loans and deposits at similar spreads relative to benchmark interest rates), loan and security prepayments, and the effects of other similar embedded options. As a result of uncertainty about the maturity and repricing characteristics of both deposits and loans, we estimate ranges of possible net interest income and EVE results under a variety of assumptions and scenarios. The modeled results are highly sensitive to the assumptions used for deposits that do not have specific maturities, such as checking, savings and money market accounts, and also to prepayment assumptions used for loans with prepayment options. We use historical regression analysis as a guide to setting such assumptions; however, due to the current low interest rate environment, which has little historical precedent, estimated deposit durations may not reflect actual future results. Additionally, competition for funding in the marketplace has and may again result in changes of deposit pricing on interest-bearing accounts that is greater or less than changes in benchmark interest rates such as LIBOR or the federal funds rate.

Under most rising interest rate environments, we would expect some customers to move balances in demand deposits to interest-bearing accounts such as money market, savings, or CDs. The models are particularly sensitive to the assumption about the rate of such migration. In order to capture the sensitivity of our models to this risk, we estimate a range of possible outcomes for interest sensitivity under “fast” and “slow” movements of client funds out of noninterest-bearing deposits and into interest-bearing sources of funds.

In addition, we assume certain correlation rates, often referred to as a “deposit beta,” of interest-bearing deposits, wherein the rates paid to customers change at a different pace when compared to changes in benchmark interest rates. Generally, certificates of deposit are assumed to have a high correlation rate, while interest-on-checking accounts are assumed to have a lower correlation rate. Actual results may differ materially due to factors including competitive pricing, money supply, credit worthiness of the Company, and so forth; however, we use our historical experience as well as industry data to inform our assumptions.

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The aforementioned migration and correlation assumptions result in deposit durations presented in the following schedule:

	September 30, 2015
	Fast				Slow
Product	Effective duration (unchanged)		Effective duration (+200 bps)		Effective duration (unchanged)		Effective duration (+200 bps)
Demand deposits	2.0	%	1.3	%	2.5	%	2.0	%
Money market	1.5	%	1.2	%	1.9	%	1.6	%
Savings and interest on checking	2.7	%	1.9	%	3.2	%	2.6	%

As of the dates indicated and incorporating the assumptions previously described, the following schedule shows our estimated percentage change in net interest income, based on a static balance sheet size, in the first year after the interest rate change if interest rates were to sustain immediate parallel changes ranging from -100 bps to +300 bps.

INCOME SIMULATION – CHANGE IN NET INTEREST INCOME

	September 30, 2015
	Parallel shift in rates (in basis points)1
Repricing scenario	-100		0		+100		+200		+300
Fast	(2.9	)%	—	%	6.8	%	12.3	%	16.5	%
Slow	(3.1	)%	—	%	9.6	%	18.7	%	27.2	%

¹  Assumes rates cannot go below zero in the negative rate shift.

For comparative purposes, we applied the new model to the December 31, 2014 balances; these results are presented in the following schedule.

	December 31, 2014
	Parallel shift in rates (in basis points)1
Repricing scenario	-100		0		+100		+200		+300
Fast	(2.6	)%	—	%	7.8	%	14.1	%	18.7	%
Slow	(3.0	)%	—	%	10.7	%	20.7	%	29.6	%

¹  Assumes rates cannot go below zero in the negative rate shift.

The decrease in interest rate sensitivity was driven by purchases of securities, addition of swap contracts in which we receive a fixed rate, and the previously mentioned changes in modeled demand deposit behavior.

As of the dates indicated and incorporating the assumptions previously described, the following schedule shows our estimated percentage change in EVE under parallel interest rate changes ranging from -100 bps to +300 bps.

CHANGES IN ECONOMIC VALUE OF EQUITY

	September 30, 2015
Repricing scenario	-100 bps		0 bps		+100 bps		+200 bps		+300 bps
Fast	2.7	%	—	%	1.3	%	0.7	%	(1.4	)%
Slow	1.6	%	—	%	4.4	%	7.3	%	8.8	%

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For comparative purposes, we applied the new model to the December 31, 2014 balances; these results are presented in the following schedule.

	December 31, 2014
Repricing scenario	-100 bps		0 bps		+100 bps		+200 bps		+300 bps
Fast	(0.8	)%	—	%	2.4	%	3.1	%	2.2	%
Slow	(2.4	)%	—	%	5.1	%	9.0	%	11.4	%

Market Risk – Fixed Income

We engage in the underwriting and trading of municipal securities. This trading activity exposes us to a risk of loss arising from adverse changes in the prices of these fixed income securities.

At September 30, 2015, we had a relatively small amount, $74 million, of trading assets and $30 million of securities sold, not yet purchased, compared with $71 million and $24 million, at December 31, 2014.

We are exposed to market risk through changes in fair value. We are also exposed to market risk for interest rate swaps used to hedge interest rate risk. Changes in the fair value of AFS securities and in interest rate swaps that qualify as cash flow hedges are included in accumulated other comprehensive income (“AOCI”) for each financial reporting period. During the third quarter of 2015, the after-tax change in AOCI attributable to AFS and HTM securities was an increase of $11 million compared to a $26 million increase in the same prior year period.

Market Risk – Equity Investments

Through our equity investment activities, we own equity securities that are publicly traded. In addition, we own equity securities in companies and governmental entities, e.g., Federal Reserve Bank and FHLBs, that are not publicly traded. The accounting for equity investments may use the cost, fair value, equity, or full consolidation methods of accounting, depending on our ownership position and degree of involvement in influencing the investees’ affairs. Regardless of the accounting method, the value of our investment is subject to fluctuation. Because the fair value of these securities may fall below our investment costs, we are exposed to the possibility of loss. Equity investments in private and public companies are approved, monitored and evaluated by the Company’s Equity Investment Committee consisting of members of management.

We hold investments in pre-public companies through various predominantly SBIC venture capital funds. Our equity exposure to these investments was approximately $112 million at September 30, 2015 and $86 million at December 31, 2014.

Additionally, Amegy has an alternative investments portfolio. These investments are primarily directed towards equity buyout and mezzanine funds with a key strategy of deriving ancillary commercial banking business from the portfolio companies. Early stage venture capital funds are generally not a part of the strategy because the underlying companies are typically not creditworthy. The carrying value of Amegy’s equity investments was $25 million at September 30, 2015 and $38 million at December 31, 2014.

These PEIs are subject to the provisions of the Dodd-Frank Act. The Volcker Rule of the Dodd-Frank Act, as published in December 2013 and amended in January 2014, prohibits banks and bank holding companies from holding PEIs beyond July 21, 2016, as currently extended, except for SBIC funds. The FRB has announced its intention to act in 2015 to grant an additional one-year extension to July 21, 2017. As of September 30, 2015, such prohibited PEIs amounted to $24 million, with an additional $8 million of unfunded commitments (see Notes 5 and 11 of the Notes to Consolidated Financial Statements for more information). We currently do not believe that this divestiture requirement will ultimately have a material impact on our financial statements.

Our earnings from these investments, and the potential volatility of these earnings, are expected to decline over the next several years and will ultimately cease.

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Liquidity Risk Management

Liquidity risk is the possibility that our cash flows may not be adequate to fund our ongoing operations and meet our commitments in a timely and cost-effective manner. Since liquidity risk is closely linked to both credit risk and market risk, many of the previously discussed risk control mechanisms also apply to the monitoring and management of liquidity risk. We manage our liquidity to provide adequate funds to meet our anticipated financial and contractual obligations, including withdrawals by depositors, debt and capital service requirements, and lease obligations, as well as to fund customers’ needs for credit. The management of liquidity and funding is performed centrally for the Parent and jointly by the Parent and bank management for its subsidiary banks.

Consolidated cash, interest-bearing deposits held as investments, and security resell agreements at the Parent and its subsidiaries decreased to $8.3 billion at September 30, 2015 from $9.7 billion at June 30, 2015, and $9.2 billion at December 31, 2014. The $0.9 billion decrease during the first nine months of 2015 resulted primarily from (1) an increase in investment securities, (2) repayment of long-term debt, (3) net loan originations and (4) dividends on common and preferred stock. These decreases were partially offset by an increase in deposits and net cash provided by operating activities.

During the first nine months of 2015, our AFS investment securities increased by $2.2 billion. This increase was primarily due to an increase in the purchases of short-to-medium duration agency guaranteed mortgage-backed securities, partially offset by the sale of the remaining portfolio of CDOs. We have been adding to our investment portfolio during the past several quarters as a result of the need for a permanent HQLA position in light of the new LCR rules and more broadly, to manage balance sheet liquidity more effectively. We expect to continue to deploy cash and short-term investments into HQLA in the next several quarters.

During the first nine months of 2015, we made cash payments totaling $164 million for our long-term debt which matured or were redeemed and did not incur any new long-term debt during the same time period. See Note 8 for additional detail about debt redemptions and maturities during the first nine months of 2015.

Liquidity Regulation

In September 2014, U.S. banking regulators issued a final rule that implements a quantitative liquidity requirement in the U.S. generally consistent with the LCR minimum liquidity measure established under the Basel III liquidity framework. Under this rule, we are subject to a modified LCR standard, which requires a financial institution to hold an adequate amount of unencumbered HQLA that can be converted into cash easily and immediately in private markets to meet our liquidity needs for a short-term liquidity stress scenario. This rule becomes applicable to us on January 1, 2016. We have calculated that if the rule were applicable to us now, we would be in compliance with the requirement to maintain a modified LCR of at least 100%.

We are required to and are conducting monthly liquidity stress tests as of January 2015. These tests incorporate scenarios designed by us subject to review by the FRB.

The Basel III liquidity framework includes a second minimum liquidity measure, the Net Stable Funding Ratio (“NSFR”), which requires a financial institution to maintain a stable funding profile in relation to the characteristics of its on- and off-balance sheet activities. On October 31, 2014, the Basel Committee on Banking Supervision issued its final standards for this ratio, entitled Basel III: The Net Stable Funding Ratio. Based on this Basel III publication, we believe we would meet the minimum NSFR if such requirement were currently effective. However, the FRB has not yet proposed regulations to implement these Basel Committee standards. We continue to monitor these developments.

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Parent Company Liquidity

The Parent’s cash requirements consist primarily of debt service, investments in and advances to subsidiaries, operating expenses, income taxes, and dividends to preferred and common shareholders. The Parent’s cash needs are usually met through dividends from its subsidiaries, interest and investment income, subsidiaries’ proportionate share of current income taxes, and long-term debt and equity issuances.

Cash, interest-bearing deposits held as investments, and security resell agreements at the Parent were $1.1 billion at both September 30, 2015 and June 30, 2015, compared to $1.0 billion at December 31, 2014. This $0.1 billion increase resulted primarily from (1) dividends received from subsidiary banks on common and preferred stock, (2) an increase in security resell agreements, and (3) a decrease in investment securities. These increases were partially offset by debt and interest payments as well as dividends on our common and preferred stock.

At September 30, 2015, the Parent’s long-term debt maturities during the remainder of 2015 consist of $122 million carrying value of subordinated/convertible subordinated notes due on November 16, 2015. The Parent’s long-term debt maturities during 2016 consist of $89 million senior notes due on June 20, 2016.

See “Capital Management” for discussion regarding the tender offer of $180 million for certain of the Company’s preferred stock.

During the first nine months of 2015, the Parent received dividends on common stock and return of common equity totaling $125 million and dividends on preferred stock totaling $31 million from its subsidiary banks. During the first nine months of 2014, the Parent received $145 million from its subsidiaries for dividends on common stock and return of common equity and $36 million from dividends on preferred stock. The dividends that our subsidiary banks can pay to the Parent are restricted by current and historical earning levels, retained earnings, and risk-based and other regulatory capital requirements and limitations. During the first nine months of 2015, all of our subsidiary banks recorded a profit. We expect that this profitability will be sustained, thus permitting continued payments of dividends by the subsidiaries to the Parent. As discussed in Note 1 of the Notes to Consolidated Financial Statements, we have announced certain efficiency and restructuring initiatives that included, among other things, the mergers of our seven subsidiary banks into Zions Bank, whose name will be changed to ZB, N.A. The Company has received approvals from the OCC and the FDIC and expects to complete the mergers following the close of business on December 31, 2015. After completion of these mergers, the single charter bank dividend capacity to the Parent may change.

General financial market and economic conditions impact our access to, and cost of, external financing. Access to funding markets for the Parent and subsidiary banks is also directly affected by the credit ratings received from various rating agencies. The ratings not only influence the costs associated with the borrowings, but can also influence the sources of the borrowings. The debt ratings and outlooks issued by the various rating agencies for the Company did not change during the first nine months of 2015, except Moody’s upgraded the Company’s subordinated debt to Ba1 from Ba2 and revised its outlook to positive from stable. Standard & Poor’s, Fitch, Dominion Bond Rating Service, and Kroll all rate the Company’s senior debt at an investment-grade level, while Moody’s rates the Company’s senior debt as Ba1 (one notch below investment-grade). In addition, all of the previously mentioned rating agencies, except Kroll, rate the Company’s subordinated debt as noninvestment-grade.

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The following schedule presents the Parent’s balance sheets as of September 30, 2015, December 31, 2014, and September 30, 2014.

PARENT ONLY CONDENSED BALANCE SHEETS
(In thousands)	September 30, 2015			December 31, 2014			September 30, 2014
ASSETS
Cash and due from banks	$	2,132		$	2,023		$	2,008
Interest-bearing deposits	478,136			1,007,916			872,543
Security resell agreements	650,000			—			—
Investment securities:
Held-to-maturity, at adjusted cost (approximate fair value of $0, $34,691 and $36,277)	—			17,292			17,307
Available-for-sale, at fair value	45,889			130,964			208,009
Other noninterest-bearing investments	27,512			29,091			29,164
Investments in subsidiaries:
Commercial banks and bank holding company	7,194,426			6,995,000			6,964,420
Other operating companies	27,800			22,948			23,885
Nonoperating – ZMFU II, Inc. 1	44,948			44,792			44,808
Receivables from subsidiaries:
Other operating companies	6,060			15,060			10,060
Other assets	78,044			106,224			190,166
	$	8,554,947		$	8,371,310		$	8,362,370
LIABILITIES AND SHAREHOLDERS’ EQUITY
Other liabilities	$	122,485		$	85,275		$	101,944
Subordinated debt to affiliated trusts	15,464			15,464			15,464
Long-term debt:
Due to affiliates	50			20			76
Due to others	778,853			901,021			922,727
Total liabilities	916,852			1,001,780			1,040,211
Shareholders’ equity:
Preferred stock	1,004,159			1,004,011			1,004,006
Common stock	4,756,288			4,723,855			4,717,295
Retained earnings	1,894,623			1,769,705			1,711,785
Accumulated other comprehensive loss	(16,975		)	(128,041		)	(110,927		)
Total shareholders’ equity	7,638,095			7,369,530			7,322,159
	$	8,554,947		$	8,371,310		$	8,362,370

¹  ZMFU II, Inc. is a wholly-owned nonoperating subsidiary whose sole purpose is to hold a portfolio of municipal bonds, loans and leases.

The Parent’s cash payments for interest, reflected in operating expenses, decreased to $33 million during the first nine months of 2015 from $80 million during the first nine months of 2014 due to continued maturity and repayment of debt. The Parent’s cash payments for interest are expected to continue to decrease over the next several quarters as a result of scheduled debt maturities and repayments. Additionally, the Parent paid approximately $80 million and $71 million of total dividends on preferred stock and common stock for the same periods.

At September 30, 2015, maturities of the Parent’s long-term senior and subordinated debt ranged from November 2015 to September 2028.

Subsidiary Bank Liquidity

The subsidiary banks’ primary source of funding is their core deposits, consisting of demand, savings and money market deposits, and time deposits under $250,000. On a consolidated basis, the Company’s loan to total deposit ratio decreased to 82.0% at September 30, 2015, compared to 83.7% at December 31, 2014 and 85.9% at September 30, 2014.

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Total deposits increased by $1.1 billion to $48.9 billion at September 30, 2015, compared to $47.8 billion at December 31, 2014, primarily due to a $1.0 billion increase in noninterest-bearing demand deposits. This increase was partially offset by a $191 million decrease in time deposits.

The FHLB system and Federal Reserve Banks have been and are a source of back-up liquidity, and from time to time, have been a significant source of funding for each of our subsidiary banks. Zions Bank and TCBW are members of the FHLB of Seattle. CB&T, NSB, and NBAZ are members of the FHLB of San Francisco. Vectra is a member of the FHLB of Topeka and Amegy Bank is a member of the FHLB of Dallas. The FHLB allows member banks to borrow against their eligible loans to satisfy liquidity and funding requirements. The subsidiary banks are required to invest in FHLB and Federal Reserve stock to maintain their borrowing capacity. We do not believe that the subsidiary bank mergers will adversely impact bank liquidity.

At September 30, 2015, the amount available for additional FHLB and Federal Reserve borrowings was approximately $16.2 billion. The amount available for additional FHLB and Federal Reserve borrowings is not expected to decrease as a result of the subsidiary bank mergers. Loans with a carrying value of approximately $22.3 billion at September 30, 2015, $22.4 billion at June 30, 2015, and $22.5 billion at December 31, 2014, have been pledged at the Federal Reserve and various FHLBs as collateral for current and potential borrowings. During the second quarter of 2015, we repaid our outstanding $22 million of long-term borrowings with the FHLB. We had no short-term FHLB or Federal Reserve borrowings outstanding at September 30, 2015, which was unchanged from December 31, 2014. At September 30, 2015, the subsidiary banks’ total investment in FHLB and Federal Reserve stock was $68 million and $123 million, respectively, compared to $104 million and $121 million at December 31, 2014.

Our investment activities can provide or use cash, depending on the asset liability management posture taken. During the first nine months of 2015, HTM and AFS investment securities’ activities resulted in a net increase in investment securities and a net $2.1 billion decrease in cash, compared with a net $273 million increase in cash for the first nine months of 2014, reflecting our purchase of HQLAs.

Maturing balances in our subsidiary banks’ loan portfolios also provide additional flexibility in managing cash flows. Lending and purchase activity for the first nine months of 2015 resulted in a net cash outflow of $75 million compared to a net cash outflow of $739 million for the first nine months of 2014.

A more comprehensive discussion of our liquidity management is contained in our 2014 Annual Report on

Form 10-K.

Operational Risk Management

Operational risk is the risk to current or anticipated earnings or capital arising from inadequate or failed internal processes or systems, human errors or misconduct, or adverse external events. In our ongoing efforts to identify and manage operational risk, we have an Enterprise Risk Management department whose responsibility is to help employees, management and the Board of Directors to assess, understand, measure, and monitor risk in accordance with our Risk Appetite Framework. We have documented both controls and the Control Self-Assessment related to financial reporting under the 2013 framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (“COSO”) and the Federal Deposit Insurance Corporation Improvement Act of 1991.

To manage and minimize our operational risk, we have in place transactional documentation requirements; systems and procedures to monitor transactions and positions; systems and procedures to detect and mitigate attempts to commit fraud, penetrate our systems or telecommunications, access customer data, and/or deny normal access to those systems to our legitimate customers; regulatory compliance reviews; and periodic reviews by the Company’s Internal Audit and Credit Examination departments. Reconciliation procedures have been established to ensure that data processing systems consistently and accurately capture critical data. Further, we undertake significant efforts to

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maintain contingency and business continuity plans for operational support in the event of natural or other disasters. We also mitigate operational risk through the purchase of insurance, including errors and omissions and professional liability insurance.

We are continually improving our oversight of operational risk, including enhancement of risk identification, risk and control self-assessments, and antifraud measures, which are reported on a regular basis to two management committees. The Operational Risk Committee reports to the Enterprise Risk Management Committee, which reports to the ROC.

The number and sophistication of attempts to disrupt or penetrate our critical systems, sometimes referred to as hacking, cyberfraud, cyberattacks, cyberterrorism, or other similar names, also continue to grow. On a daily basis, the Company, its customers, and other financial institutions are subject to a large number of such attempts. We have established systems and procedures to monitor, thwart or mitigate damage from such attempts. However, in some instances we, or our customers, have been victimized by cyberfraud (our related losses have not been material), or some of our customers have been temporarily unable to routinely access our online systems as a result of, for example, distributed denial of service attacks. We continue to review this area of our operations to help ensure that it manages this risk in an effective manner.

CAPITAL MANAGEMENT

We believe that a strong capital position is vital to continued profitability and to promoting depositor and investor confidence.

Capital Plan and Stress Tests

As a bank holding company with assets greater than $50 billion, we are required by the Dodd-Frank Act to participate in annual stress tests known as the Dodd-Frank Act Stress Test (“DFAST”) and Federal Reserve’s Comprehensive Capital Analysis and Review (“CCAR”). We timely submitted our 2015 capital plan and stress test results to the FRB on January 5, 2015. In our capital plan, we were required to forecast under a variety of economic scenarios for nine quarters ending the fourth quarter of 2016 our estimated regulatory capital ratios, including our tier 1 common ratio under Basel I rules, our estimated regulatory capital ratios, including our Common Equity Tier 1 (“CET1”) ratio, under Basel III rules, and our GAAP tangible common equity ratio. During the second quarter of 2015, we completed our mid-cycle capital stress test as required under DFAST. The results demonstrated that we maintained sufficient capital to withstand a severe economic downturn. Detailed disclosure of the mid-cycle stress test results can be found on the Company’s website. Under the implementing regulations for CCAR, a bank holding company may generally raise and redeem capital, pay dividends, and repurchase stock and take similar capital-related actions only under a capital plan as to which the FRB has not objected.

On March 11, 2015, we announced that the Federal Reserve notified us that it did not object to the capital actions outlined in our 2015 capital plan. The plan included (1) the increase of the quarterly common dividend to $0.06 per share beginning in the second quarter of 2015; (2) the continued payment of preferred dividends at the current rates; and (3) up to $300 million in total reduction of preferred equity. As previously discussed, on October 19, 2015, we announced that we will deploy $180 million of cash through a tender offer to purchase certain outstanding preferred stock and depositary shares. We expect to redeem the remaining balance of the $300 million redemption included in our capital plan during the first half of 2016; however, the method and specific timing have not yet been determined. The ultimate determination of future preferred stock reductions will depend on a number of factors, including market conditions and the receptivity of preferred investors to the terms of any preferred stock redemption offers, as well as the effect of other steps we may explore as we seek to manage our capital in light of the most recent round of stress tests, any of which could result in a reduction or delay of further preferred equity reductions. We expect to manage any further reduction of preferred equity such that total tier 1 capital does not decline materially during the period covered by our CCAR 2015 capital plan.

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Basel III

The Basel III capital rules, which effectively replaced the Basel I rules, became effective for the Company on January 1, 2015 (subject to phase-in periods for certain of their components). In 2013, the FRB, FDIC, and OCC published final rules (the “Basel III Capital Rules”) establishing a new comprehensive capital framework for U.S. banking organizations. The rules implement the Basel Committee’s December 2010 framework, commonly referred to as Basel III, for strengthening international capital standards as well as certain provisions of the Dodd-Frank Act. The Basel III capital rules substantially revised the risk-based capital requirements applicable to bank holding companies and depository institutions, including the Company, compared to the Basel I U.S. risk-based capital rules.

Under prior Basel I capital standards, the effects of AOCI items included in capital were excluded for purposes of determining regulatory capital and capital ratios. As a “non-advanced approaches banking organization,” we made a one-time permanent election as of January 1, 2015 to continue to exclude these items, as allowed under the Basel III Capital Rules.

We met all capital adequacy requirements under the Basel III Capital Rules based upon a 2015 phase-in as of September 30, 2015, and believe that we would meet all capital adequacy requirements on a fully phased-in basis if such requirements were currently effective.

A detailed discussion of Basel III requirements, including implications for the Company, is contained on page 8 in “Supervision and Regulation” under Part 1, Item 1 in our 2014 Annual Report on Form 10-K.

Capital Management Actions

Total shareholders’ equity increased by $269 million to $7.6 billion at September 30, 2015 from $7.4 billion at December 31, 2014. The increase in total shareholders’ equity is primarily due to net income of $207 million and to the sale of the Company’s remaining portfolio of CDO securities, which was the primary driver of the $111 million increase in AOCI, partially offset by $81 million of dividends recorded on preferred and common stock.

Our quarterly dividend on common stock remained at $0.06 per share during the third quarter of 2015. The dividend rate was increased to $0.06 per share during the second quarter of 2015 from $0.04 per share paid since the second quarter of 2013. We paid $32.8 million in dividends on common stock during the first nine months of 2015, compared to $23.1 million during the first nine months of 2014. During its October 2015 meeting, the Board of Directors declared a quarterly dividend of $0.06 per common share payable on November 25, 2015 to shareholders of record on November 18, 2015.

We recorded dividends on preferred stock of $48.6 million and $56.8 million for the first nine months of 2015 and 2014, respectively. Dividends on preferred stock recorded in the first nine months of 2015 and 2014 included accruals of $1.7 million and $8.7 million, respectively. Our 2015 capital plan, to which the Federal Reserve did not object, includes the reduction of up to $300 million in preferred stock. See discussion under “Capital Plan and Stress Tests” following. On October 19, 2015, we announced the commencement of a $180 million cash tender offer to purchase certain outstanding preferred stock and depositary shares. The ultimate amount purchased will be determined by the success of the tender offer, which will expire on November 16, 2015. Depending upon the total amount and mix of series of preferred stock purchased from this offer, preferred stock dividends during 2016 may be reduced by approximately $10 million.

Capital Ratios

Banking organizations are required by capital regulations to maintain adequate levels of capital as measured by several regulatory capital ratios.

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The following schedule shows the Company’s capital and performance ratios as of September 30, 2015, December 31, 2014, and September 30, 2014.

CAPITAL RATIOS

	September 30, 2015		December 31, 2014		September 30, 2014
Tangible common equity ratio	9.76	%	9.48	%	9.70	%
Tangible equity ratio	11.51	%	11.27	%	11.54	%
Average equity to average assets (three months ended)	13.11	%	13.21	%	12.87	%
Basel III risk-based capital ratios1:
Common equity tier 1 capital	12.16%
Tier 1 leverage	11.63%
Tier 1 risk-based	14.41%
Total risk-based	16.46%
Basel I risk-based capital ratios:
Tier 1 common			11.92	%	11.86	%
Tier 1 leverage			11.82	%	11.87	%
Tier 1 risk-based			14.47	%	14.43	%
Total risk-based			16.27	%	16.28	%
Return on average common equity (three months ended)	5.02	%	4.06	%	5.05	%
Tangible return on average tangible common equity (three months ended)	6.05	%	4.95	%	6.19	%

¹  Basel III capital ratios became effective January 1, 2015 and are based upon a 2015 phase-in.

At September 30, 2015, Basel III regulatory tier 1 risk-based capital and total risk-based capital was $6.7 billion and $7.6 billion, respectively. Basel I regulatory tier 1 risk-based capital and total risk-based capital at December 31, 2014 was $6.6 billion and $7.4 billion, respectively.

A more comprehensive discussion of our capital management is contained in our 2014 Annual Report on

Form 10-K.

GAAP to NON-GAAP RECONCILIATIONS

1. Basel I tier 1 common capital

The Basel I capital rules were replaced by the new Basel III capital rules that became effective for the Company on January 1, 2015 (subject to phase-in periods for certain of their components). The Basel III capital rules include the CET1 capital ratio, which is the core capital component of the Basel III rules and a key ratio considered by regulators, investors and analysts. The calculation of the CET1 capital ratio, as defined under Basel III rules, is considered an acceptable ratio by GAAP for financial institutions and, accordingly, does not require reconciliation to GAAP.

There is a difference in the calculation of the CET1 capital ratio under Basel III rules and the calculation of the tier 1 common (“T1C”) capital ratio under Basel I rules. We present the calculation of key regulatory capital ratios, including the T1C capital ratio, using the governing definition at the end of each quarter, taking into account applicable phase-in rules.

While we were subject to Basel I capital rules prior to 2015, the Federal Reserve and other banking regulators assessed a bank’s capital adequacy based on tier 1 capital, the calculation of which was codified in federal banking regulations. However, Basel I rules did not include a definition for T1C capital and thus it was considered a non-GAAP measure requiring reconciliation to GAAP. The following schedule provides a reconciliation for prior

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periods of total shareholders’ equity (GAAP) to tier 1 capital (regulatory at the subject dates) and to T1C capital (non-GAAP) using Basel I U.S. regulatory treatment, and the resulting T1C capital ratio.

BASEL I TIER 1 COMMON CAPITAL (NON-GAAP)

(Amounts in millions)	December 31, 2014			September 30, 2014
Total shareholders’ equity (GAAP)	$	7,370		$	7,322
Accumulated other comprehensive loss	128			111
Nonqualifying goodwill and intangibles	(1,040		)	(1,043		)
Other regulatory adjustments	(1		)	(1		)
Qualifying trust preferred securities	163			163
Tier 1 capital (regulatory)	6,620			6,552
Qualifying trust preferred securities	(163		)	(163		)
Preferred stock	(1,004		)	(1,004		)
Tier 1 common capital (non-GAAP)	$	5,453		$	5,385
Risk-weighted assets (regulatory)	$	45,738		$	45,409
Tier 1 common capital to risk-weighted assets (non-GAAP)	11.92		%	11.86		%

2. Tangible return on average tangible common equity

This Form 10-Q presents “tangible return on average tangible common equity” which excludes, net of tax, the amortization of core deposit and other intangibles from net earnings applicable to common shareholders, and average goodwill and core deposit and other intangibles from average common equity.

The following schedule provides a reconciliation of net earnings applicable to common shareholders (GAAP) to net earnings applicable to common shareholders, excluding net of tax, the effects of amortization of core deposit and other intangibles (non-GAAP), and average common equity (GAAP) to average tangible common equity (non-GAAP).

TANGIBLE RETURN ON AVERAGE TANGIBLE COMMON EQUITY (NON-GAAP)

		Three Months Ended
(Amounts in thousands)		September 30, 2015			December 31, 2014			September 30, 2014
Net earnings applicable to common shareholders (GAAP)		$	84,238		$	66,761		$	79,127
Adjustment, net of tax:
Amortization of core deposit and other intangibles		1,461			1,676			1,690
Net earnings applicable to common shareholders, excluding the effects of the adjustment, net of tax (non-GAAP)	(a)	$	85,699		$	68,437		$	80,817
Average common equity (GAAP)		$	6,655,513		$	6,521,187		$	6,221,344
Average goodwill		(1,014,129		)	(1,014,129		)	(1,014,129		)
Average core deposit and other intangibles		(19,726		)	(26,848		)	(29,535		)
Average tangible common equity (non-GAAP)	(b)	$	5,621,658		$	5,480,210		$	5,177,680
Number of days in quarter	(c)	92			92			92
Number of days in year	(d)	365			365			365
Tangible return on average tangible common equity (non-GAAP)	(a/b/c*d)	6.05		%	4.95		%	6.19		%

3. Total shareholders’ equity to tangible equity and tangible common equity

This Form 10-Q presents “tangible equity” and “tangible common equity” which excludes goodwill and core deposit and other intangibles for both measures and preferred stock for tangible common equity.

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The following schedule provides a reconciliation of total shareholders’ equity (GAAP) to both tangible equity (non-GAAP) and tangible common equity (non-GAAP).

TANGIBLE EQUITY (NON-GAAP) AND TANGIBLE COMMON EQUITY (NON-GAAP)

(Amounts in millions)		September 30, 2015			December 31, 2014			September 30, 2014
Total shareholders’ equity (GAAP)		$	7,638		$	7,370		$	7,322
Goodwill		(1,014		)	(1,014		)	(1,014		)
Core deposit and other intangibles		(19		)	(26		)	(28		)
Tangible equity (non-GAAP)	(a)	6,605			6,330			6,280
Preferred stock		(1,004		)	(1,004		)	(1,004		)
Tangible common equity (non-GAAP)	(b)	$	5,601		$	5,326		$	5,276
Total assets (GAAP)		$	58,411		$	57,209		$	55,459
Goodwill		(1,014		)	(1,014		)	(1,014		)
Core deposit and other intangibles		(19		)	(26		)	(28		)
Tangible assets (non-GAAP)	(c)	$	57,378		$	56,169		$	54,417
Tangible equity ratio	(a/c)	11.51		%	11.27		%	11.54		%
Tangible common equity ratio	(b/c)	9.76		%	9.48		%	9.70		%

4. Efficiency ratio

This Form 10-Q presents an “efficiency ratio” whose calculation includes adjustments for certain line items and amounts in noninterest expense and noninterest income. The following schedule provides a reconciliation of noninterest expense (GAAP), taxable-equivalent net interest income (GAAP) and noninterest income (GAAP) to the efficiency ratio (non-GAAP).

EFFICIENCY RATIO

(Amounts in thousands)		Three Months Ended September 30,						Nine Months Ended September 30,
		2015			2014			2015			2014
Noninterest expense (GAAP)	(a)	$	396,149		$	438,536		$	1,197,710		$	1,242,626
Adjustments:
Severance costs		3,464			4,919			7,424			6,897
Other real estate expense, net		(40		)	875			(111		)	2,216
Provision for unfunded lending commitments		1,428			(16,095		)	313			(10,328		)
Debt extinguishment cost		—			44,422			2,395			44,422
Amortization of core deposit and other intangibles		2,298			2,665			6,974			8,283
Restructuring costs		833			—			1,483			—
Total adjustments		7,983			36,786			18,478			51,490
Add-back of adjustments	(b)	(7,983		)	(36,786		)	(18,478		)	(51,490		)
Adjusted noninterest expense (non-GAAP)	(a+b)=(c)	$	388,166		$	401,750		$	1,179,232		$	1,191,136
Taxable-equivalent net interest income (GAAP)	(d)	$	429,782		$	420,850		$	1,279,378		$	1,261,357
Noninterest income (GAAP)	(e)	130,813			116,071			253,056			379,234
Adjustments:
Fair value and nonhedge derivative income (loss)		(1,555		)	44			(799		)	(10,429		)
Equity securities gains, net		3,630			440			11,822			3,865
Fixed income securities gains (losses), net		(53		)	(13,901		)	(138,728		)	22,039
Total adjustments		2,022			(13,417		)	(127,705		)	15,475
Add-back of adjustments	(f)	(2,022		)	13,417			127,705			(15,475		)
Adjusted taxable-equivalent net interest income and noninterest income (non-GAAP)	(d+e+f)=(g)	$	558,573		$	550,338		$	1,660,139		$	1,625,116
Efficiency ratio	(c/g)	69.5		%	73.0		%	71.0		%	73.3		%

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For items 2, 3 and 4, the identified adjustments to reconcile from the applicable GAAP financial measures to the non-GAAP financial measures are included where applicable in financial results or in the balance sheet presented in accordance with GAAP. We consider these adjustments to be relevant to ongoing operating results and financial position.

We believe that excluding the amounts associated with these adjustments to present the non-GAAP financial measures provides a meaningful base for period-to-period and company-to-company comparisons, which will assist regulators, investors, and analysts in analyzing our operating results or financial position and in predicting future performance. These non-GAAP financial measures are used by management to assess the performance of the Company’s business or its financial position for evaluating bank reporting segment performance, for presentations of our performance to investors, and for other reasons as may be requested by investors and analysts. We further believe that presenting these non-GAAP financial measures will permit investors and analysts to assess our performance on the same basis as that applied by management.

Non-GAAP financial measures have inherent limitations, are not required to be uniformly applied, and are not audited. Although these non-GAAP financial measures are frequently used by stakeholders to evaluate a company, they have limitations as an analytical tool, and should not be considered in isolation or as a substitute for analysis of results reported under GAAP.

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Interest rate and market risks are among the most significant risks regularly undertaken by us, and they are closely monitored as previously discussed. A discussion regarding our management of interest rate and market risk is included in the section entitled “Interest Rate and Market Risk Management” in this Form 10-Q.

ITEM 4. CONTROLS AND PROCEDURES

The Company’s management, with the participation of the Company’s Chief Executive Officer and Chief Financial Officer, has evaluated the effectiveness of the Company’s disclosure controls and procedures as of September 30, 2015. Based on that evaluation, the Company’s Chief Executive Officer and Chief Financial Officer concluded that the Company’s disclosure controls and procedures were effective as of September 30, 2015. There were no changes in the Company’s internal control over financial reporting during the third quarter of 2015 that have materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.

PART II. OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

The information contained in Note 11 of the Notes to Consolidated Financial Statements is incorporated by reference herein.

ITEM 1A. RISK FACTORS

We believe there have been no material changes in the risk factors included in Zions Bancorporation’s 2014 Annual Report on Form 10-K. However, the following is updated risk factor disclosure related to certain management actions:

We are making significant changes to the Company that include, among other things, the combination of certain of our subsidiary companies into a single entity, other organizational restructurings, efficiency initiatives, and replacement or upgrades of certain core technological systems. The ultimate success and completion of these changes, and their effect on the Company, may vary significantly from initial planning, which could materially adversely affect the Company, including its control environment, operating efficiency, and results of operations.

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ZIONS BANCORPORATION AND SUBSIDIARIES

During 2013, our Board of Directors approved a significant investment by us to replace our loan and deposit systems and to upgrade our accounting systems. The new integrated system for most of our loans and deposits is expected to employ technology that is a significant improvement over our current systems. In addition, we are implementing operational changes relating to our loan and deposit activities. These initiatives will be completed in phases to allow for appropriate testing and implementation so as to minimize time delays and cost overruns. In June of this year, the Company announced that our Board of Directors approved the consolidation of our seven subsidiary banks and our service company into a single bank. The Company also decided to make other organizational changes such as the realignment of management responsibilities and the rationalization of support functions, including accounting and risk, and back office operations. Also in June of this year, management announced certain efficiency initiatives to improve operating results and return on equity.

These changes continue to be developed and some are in their early stages. By their very nature, projections of duration, cost, expected savings, expected efficiencies, and related items are subject to change and significant variability.

We may encounter significant adverse developments in the completion and implementation of these changes. These may include significant time delays, cost overruns, loss of key people, technological problems, processing failures, and other adverse developments. Our ability to attract key employees with appropriate talent to implement these changes may also be challenged. Further, our ability to maintain an adequate control environment may be impacted. Any or all of these issues could result in disruptions to our systems, processes, controls, procedures, and employees, which may adversely impact our customers and ability to conduct business.

We have plans and procedures designed to prevent or limit the negative effect of these adverse developments. However, there can be no assurance that any such adverse developments will not occur or, if they do occur, that they will be adequately remediated. The ultimate effect of any adverse development could damage our reputation, result in a loss of customer business, subject us to additional regulatory scrutiny, or expose us to civil litigation and possible financial liability, any of which could materially affect the Company, including its control environment, operating efficiency, and results of operations.

ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

The following schedule summarizes the Company’s share repurchases for the third quarter of 2015:

SHARE REPURCHASES

Period	Total number of shares repurchased 1		Average price paid per share		Total number of shares purchased as part of publicly announced plans or programs		Approximate dollar value of shares that may yet be purchased under the plan
July		545	$	31.76		—		$	—
August		22,176	30.83			—		—
September		1,012	28.24			—		—
Third quarter		23,733	30.74			—

¹  Represents common shares acquired from employees in connection with our stock compensation plan. Shares were acquired from employees to pay for their payroll taxes and stock option exercise cost upon the vesting of restricted stock and restricted stock units, and the exercise of stock options, under provisions of an employee share-based compensation plan.

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ITEM 6. EXHIBITS

a)Exhibits

Exhibit Number	Description
3.1	Restated Articles of Incorporation of Zions Bancorporation dated July 8, 2014, incorporated by reference to Exhibit 3.1 of Form 8-K/A filed on July 18, 2014.	*
3.2	Restated Bylaws of Zions Bancorporation dated February 27, 2015, incorporated by reference to Exhibit 3.2 of Form 10-Q for the quarter ended March 31, 2015.	*
10.1	Sixth Amendment to Trust Agreement between Fidelity Management Trust Company and Zions Bancorporation for the Deferred Compensation Plans, dated August 17, 2015 (filed herewith).
10.2	Sixth Amendment to the Zions Bancorporation Payshelter 401(k) and Employee Stock Ownership Plan Trust Agreement between Zions Bancorporation and Fidelity Management Trust Company, dated August 17, 2015 (filed herewith).
31.1	Certification by Chief Executive Officer required by Rules 13a-15(f) and 15d-15(f) under the Securities Exchange Act of 1934 (filed herewith).
31.2	Certification by Chief Financial Officer required by Rules 13a-15(f) and 15d-15(f) under the Securities Exchange Act of 1934 (filed herewith).
32	Certification by Chief Executive Officer and Chief Financial Officer required by Sections 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934 (15 U.S.C. 78m) and 18 U.S.C. Section 1350 (furnished herewith).
101	Interactive data files pursuant to Rule 405 of Regulation S-T: (i) the Consolidated Balance Sheets as of September 30, 2015 and December 31, 2014, (ii) the Consolidated Statements of Income for the three months ended September 30, 2015 and September 30, 2014 and the nine months ended September 30, 2015 and September 30, 2014, (iii) the Consolidated Statements of Comprehensive Income for the three months ended September 30, 2015 and September 30, 2014 and the nine months ended September 30, 2015 and September 30, 2014, (iv) the Consolidated Statements of Changes in Shareholders’ Equity for the nine months ended September 30, 2015 and September 30, 2014, (v) the Consolidated Statements of Cash Flows for the three months ended September 30, 2015 and September 30, 2014 and the nine months ended September 30, 2015 and September 30, 2014, and (vi) the Notes to Consolidated Financial Statements (filed herewith).

* Incorporated by reference

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

ZIONS BANCORPORATION

/s/ Harris H. Simmons

Harris H. Simmons, Chairman and

Chief Executive Officer

/s/ Paul E. Burdiss

Paul E. Burdiss, Executive Vice President and Chief Financial Officer

Date: November 6, 2015

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EX-10.1

EXHIBIT 10.1

SIXTH AMENDMENT TO TRUST AGREEMENT BETWEEN

FIDELITY MANAGEMENT TRUST COMPANY AND

ZIONS BANCORPORATION

THIS SIXTH AMENDMENT, dated and effective as of the seventeenth day of August, 2015, and effective on that date unless otherwise stated herein, by and between Fidelity Management Trust Company (the “Trustee”) and Zions Bancorporation (the “Sponsor”);

WITNESSETH:

WHEREAS, the Trustee and the Sponsor heretofore entered into a Master Trust Agreement dated September 1, 2006, with regard to the Zions Bancorporation Restated Deferred Compensation Plan, Zions Bancorporation Restated Deferred Compensation Plan for Directors, and the Restated Amegy Bancorporation, Inc. Non-Employees Directors Deferred Fee Plan (collectively and individually, the “Plan”); and

WHEREAS, the parties have agreed that effective August 17, 2015, Portfolio Advisory Service will be provided to Zions Bancorporation Restated Deferred Compensation Plan (29149); and

WHEREAS, the Trustee’s address has changed to 245 Summer Street, Boston, MA 02210, and the parties wish to amend the Agreement to reflect the same; and

WHEREAS, the Trustee and the Sponsor now desire to amend said Trust Agreement as provided for in Section 13thereof;

NOW THEREFORE, in consideration of the above premises, the Trustee and the Sponsor hereby amend the Trust Agreement by:

(1) Amending Section 5(a), Selection Investment Options, by restating as follows:

(a)    Selection of Investment Options or Portfolio Advisory Service^®.

The Trustee shall have no responsibility for the selection of investment options under the Trust or the decision to offer Portfolio Advisory Service^®, and shall not render investment advice to any person in connection with the selection of such options or service. The parties acknowledge that the Sponsor is capable of evaluating investment risks independently.  The Sponsor affirms that at all times all decisions concerning the plan's investment line-up or its investment strategies, including, but not limited to, evaluations of information provided by Trustee or its affiliates, shall be made by exercising independent judgment.

“Portfolio Advisory Service^®” shall mean Fidelity Portfolio Advisory Service^® at Work, a discretionary investment management service provided by Strategic Advisers in accordance with the investment management agreement as attached, to eligible Participants who elect the service. “Strategic Advisers” shall mean Strategic Advisers, Inc., an affiliate of the Trustee, and a registered investment adviser, or its successors or assigns.

₁ 

(2)    Amending Section 5(c), Investment Direction, by restating as follows:

(c)    Investment Direction.

As authorized under the Plan, each Participant shall direct the Trustee in which investment option(s) to invest the assets in the Participant’s individual accounts, or shall direct the Trustee to invest such Participant’s individual accounts among the Plan’s available investment options in accordance with investment directions provided by Strategic Advisers under Portfolio Advisory Service^®. In the event the Participant elects to participate in Portfolio Advisory Service^®, he or she may not exercise investment direction over his or her Plan account (except for assets held in Sponsor Stock) until his or her participation in such Portfolio Advisory Service^® has terminated. Investment directions may be made by Participants by use of the telephone exchange system, the internet, or in such other manner as may be agreed upon from time to time by the Sponsor and the Trustee. Participant direction to participate in Portfolio Advisory Service^® (or to cease such participation) shall be made by use of the telephone exchange system, or in such other manner as may be agreed upon from time to time by the Sponsor and the Trustee. Any direction from Participants contemplated by this paragraph shall be made in accordance with the fund exchange provisions set forth in the Plan Administration Manual. The Trustee shall not be liable for any loss or expense that arises from a Participant’s exercise or non-exercise of rights under this Section 5 over the assets in the Participant’s accounts. In the event that the Trustee fails to receive a proper direction from the Participant, the assets shall be invested in the investment option set forth for such purpose on Schedule “C”, until the Trustee receives a proper direction.

(3)    Amending Section 5(e)(i), Execution of Purchases and Sales, by restating as follows:

(i) Execution of Purchases and Sales of Mutual Funds

Purchases and sales of Mutual Funds (other than for exchanges) shall be made on the date on which the Trustee receives from the Administrator In Good Order all information, documentation and wire transfer of funds (if applicable), necessary to accurately effect such transactions. Exchanges of Mutual Funds pursuant to Participant request shall be processed in accordance with the fund exchange provisions set forth in the Plan Administration Manual.

(4) Amending Section 5, Investment of Trust, to add a new subsection (j), as follows:

(j) Portfolio Advisory Service^® (for Zions Bancorporation Restated Deferred Compensation Plan only).

(i) This section is intended to authorize appointment of an investment manager as contemplated in Section 402(c)(3) of ERISA. The Sponsor may appoint an investment manager, and, pursuant to the agreement in the Schedule titled “Investment Management Agreement”, the Sponsor has so appointed Strategic Advisers with respect to assets held in the individual Plan accounts of participants enrolled in Portfolio Advisory Service^®. That appointment extends only to Managed Assets, as defined below. Trustee will implement

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the addition of Portfolio Advisory Service^® on August 17, 2015. In the event the implementation date above is no longer reasonably practicable, the parties will establish another date for implementation.

(ii) Managed Assets shall be comprised of those assets held in or contributed to the individual plan accounts of eligible Participants (other than Sponsor Stock)from whom the Trustee or its agent has received In Good Order an election to participate in the Portfolio Advisory Service^®, and whose participation has not been terminated in accordance with subparagraph (iv). All Participants are eligible for Portfolio Advisory Service^®. In order to be eligible for the service, a Participant must have a Plan account balance equal to or greater than an amount as the Trustee and Strategic Advisers may determine in their sole discretion. Participants who hold non-traditional investment options in their Plan account, such as self-directed brokerage assets, are ineligible for the service until such holdings are liquidated.

(iii) Purchases and sales of investment options initiated by Portfolio Advisory Service^® shall be governed by the operating guidelines set out in the Schedule titled “Operating Guidelines for Investment Options Exchanges -Portfolio Advisory Service^®”.

(iv) For so long as Portfolio Advisory Service^® is offered, Strategic Advisers’ authority with respect to Managed Assets shall begin when Fidelity has confirmed receipt of an election In Good Order from an eligible Participant who has elected to participate in the service (and in the case of plans or portions thereof transferring to Fidelity recordkeeping services, at the conclusion of the Participant Recordkeeping Reconciliation Period). Strategic Advisers’ authority with respect to Managed Assets shall end with respect to a Participant when (A) the Participant terminates his or her election to participate in Portfolio Advisory Service^®; (B) Managed Assets are withdrawn (through loan, withdrawal or distribution) or otherwise transferred out of the Participant’s account for any reason (but only to the extent of such withdrawal or transfer); (C) the Participant’s account is transferred to another plan; (D) Strategic Advisers receives notice from the Trustee or its agent of a Participant’s death, after the Trustee or its agent has been so notified; (E) Strategic Advisers notifies a Participant that the Participant is no longer eligible for the service, or that it will no longer provide the service to such Participant for any reason; (F) when the Plan’s Sponsor directs Strategic Advisers to discontinue its service to any Participant (whether through termination of Strategic Advisers as investment manager with respect to Portfolio Advisory Service^®, or otherwise); or (G) when an affiliate of the Trustee ceases to provide recordkeeping services for the Plan.A Participant’s termination of his or her election to participate in Portfolio Advisory Service^® shall be effective immediately after the Trustee confirms receipt of such election, provided that if confirmation is received after market close and one or more exchange transactions initiated by Strategic Advisers are pending for processing in

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the nightly cycle for such date, such exchanges shall be processed as of the market close on such date.

(v) The Managed Assets shall be identified on the books and records of the Trust separately from all other assets held by the Trustee under this Agreement. Strategic Advisers shall have the duty and power to direct the Trustee and its affiliates as to the investment of Managed Assets among available investment options, in accordance with governing investment guidelines, but shall have no authority with respect to the exercise of shareholder rights such as voting, or other rights that arise out of the Trust’s ownership of certain securities, such as the right to participate in bankruptcy or other litigation. The Trustee shall follow the direction of Strategic Advisers or its agent regarding the investment and reinvestment of the Managed Assets. The Trustee shall have no authority or responsibility to review, question or countermand any instruction provided by Strategic Advisers to it, unless it has knowledge that by its action or failure to act, it will be participating in or undertaking to conceal a breach of fiduciary duty by Strategic Advisers.

(vi) The Trustee may execute such documents and powers of attorney as may be necessary to authorize Strategic Advisers or its agents, to exercise the investment management duties of Strategic Advisers.

(vii) It is acknowledged that the Strategic Advisers may appoint as its agent any entity, including FIIOC that is also used by the Trustee in performing its duties hereunder.

(viii) Neither the Trustee nor its affiliates performing recordkeeping and administrative services for the Plan shall have any obligation to provide any information concerning an enrolled Participant to Strategic Advisers (including, without limitation, any holdings of such Participant outside of the assets allocated to Portfolio Advisory Service^®), provided, however, that the Trustee and such affiliates shall be obligated to notify Strategic Advisers of an event terminating some or all of its management responsibilities for enrolled Participants.

(ix) A Participant may elect to participate in Portfolio Advisory Service^® by enrolling via the internet, by completing a paper enrollment form, via telephone, or by other means as agreed to by the Sponsor and the Trustee. After the conclusion of any Participant Recordkeeping Reconciliation Period, exchanges shall be made at the NAV next calculated after a Participant has provided In Good Order all information necessary for the service to determine an appropriate target asset mix and model portfolio, and the receipt of his or her election to participate in Portfolio Advisory Service^® has been confirmed. A Participant may elect to terminate participation in Portfolio Advisory Service^® via telephone, the internet, or such other means agreed to by the Sponsor and the Trustee and such termination shall be effective immediately when the Trustee confirms receipt of such instruction, provided that if any exchange transactions are

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pending at the time the Participant elects to terminate the service, the pending transactions shall be processed at the market close on such date unless the Participant requests cancellation of such transactions. In the absence of such pending transactions, upon completion of unenrollment process of his or her participation in the Portfolio Advisory Service^®, a Participant may request exchanges immediately, and such transactions shall be implemented in accordance with the guidelines set forth in the Plan Administration Manual for such investment option. For so long as a Participant participates in Portfolio Advisory Service^®, he or she may not make exchanges in his or her account (except for exchanges related to Sponsor Stock).

(x) The Sponsor may direct the Trustee in writing to automatically enroll some or all of the Participants into Portfolio Advisory Service^®. If the Sponsor directs the Trustee to automatically enroll any or all of the Participants into Portfolio Advisory Service^®, the Trustee shall re-direct contributions to the Plan accounts of such Participants, and shall re-allocate existing account balances of such Participants, among the Plan’s available investment options in accordance with the investment directions provided by Strategic Advisers unless or until the Participant opts out of Portfolio Advisory Service^®. Assets held in or contributed to the accounts of a Participant who has been automatically enrolled in the Service pursuant to the Sponor’s direction shall be Managed Assets as described in (ii) above, subject to investment direction by Strategic Advisers until such time as the Participant opts out of participation in Portfolio Advisory Service^® and so notifies the Trustee. Participant direction to opt out of Portfolio Advisory Service^® may be made via the telephone, the internet or in such other manner as may be agreed to from time to time between the Sponsor and the Trustee. Upon receipt and processing of a Participant’s election to opt out of Portfolio Advisory Service^®, the Trustee shall thereafter invest the Participant’s accounts among the investment options under the Plan in accordance with the Participant’s investment instructions. A Participant’s election to opt out of enrollment in Portfolio Advisory Service^® shall be effective immediately after the Trustee confirms receipt of such election, provided that if confirmation is received after market close on a Business Day and one or more exchange transactions initiated by Strategic Advisers are processing in the nightly cycle for such date, such exchanges shall be processed as of the market close of the next Business Day.

(5) Restating Section 11, Resignation, Removal, and Termination Notices, in its entirety, to read as follows:

Section 11. Resignation, Removal, and Termination Notices.

All notices of resignation, removal, or termination under this Agreement must be in writing and mailed to the party to which the notice is being given by certified or registered mail, return receipt requested, to the Sponsor c/o Senior Vice President Corporate Benefits Director, Zions Bancorporation, One South Main Street, Suite 600, Salt Lake City, Utah

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84111, and to the Trustee c/o Fidelity Workplace Services LLC, PWI Risk & Compliance, 245 Summer Street, V7B, Boston, Massachusetts 02210, or to such other addresses as the parties have notified each other of in the foregoing manner.

(6)    Adding a new Section 22, Investment Management Communications, as follows:

Section 22.     Investment Management Communications.

Notwithstanding any provision of the Agreement to the contrary, Sponsor hereby authorizes the Trustee and affiliates of the Trustee, throughout the term of this Agreement and any extensions thereto, to provide Participants with communications related to workplace and/or personal investment management products or services. The Trustee and affiliates of the Trustee may use for such purpose any information received hereunder or otherwise related to the Plan or Sponsor; all such information collected or used shall be treated in accordance with Fidelity Investments’ privacy policy.

(7) Amending Schedule “B”, Fee Schedule, to add the following:

Portfolio Advisory Service^® 

The fees for Portfolio Advisory Service^® are set forth in the Investment Management Agreement Schedule.

Unless paid by the Sponsor or deducted from the Plan pursuant to alternative, valid direction from the Plan’s Sponsor, the quarterly fees for Portfolio Advisory Service^® applicable to each Participant will be calculated, based on a Participant’s daily balances for all days not previously billed, generally on the 25^th day (or next available Business Day) of the final month of the Participant statement cycle quarter. The Trustee shall redeem investments in the amount of such fee pro rata from the investment options in the electing Participant’s Plan account on the Business Day following the fee calculation. This amount will be noted on the Participant’s statement. In the event a Participant’s participation in the service is terminated before the end of a quarter, the fee will be prorated based on the number of days the account was managed during the quarter. Failure to deduct fees shall not constitute a fee waiver.

(8) Adding the Schedule titled “Operating Guidelines for Investment Options Exchanges -Portfolio Advisory Service^®”, as attached hereto.

(9) Adding the Schedule titled "Investment Managemeng Agreement", as attached hereto.

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IN WITNESS WHEREOF, the Trustee and the Sponsor have caused this Sixth Amendment to be executed by their duly authorized officers effective as of the day and year first above written. By signing below, the undersigned represent that they are authorized to execute this document on behalf of the respective parties. Notwithstanding any contradictory provision of the agreement that this document amends, each party may rely without duty of inquiry on the foregoing representation.

ZIONS BANCORPORATION FIDELITY MANAGEMENT TRUST COMPANY

By: /s/ Dianne James    By: /s/ Mary Beth Davies 7/1/15

__________________________________ ________________________________________

Authorized Signatory Date        FMTC Authorized Signatory Date

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SCHEDULE - OPERATING GUIDELINES FOR INVESTMENT OPTIONS EXCHANGES - PORTFOLIO ADVISORY SERVICE^® 

The following operating guidelines shall govern exchanges of investment options for Participants enrolled in Portfolio Advisory Service^®. These guidelines are subject to change upon written notice to the Sponsor.

(a) Rebalancing Participant Accounts:

Assets in the Participant’s Plan account are rebalanced on an ongoing basis to ensure alignment with the assigned asset allocation strategy and the current model portfolio. There are two primary types of rebalancing activities:

• Portfolios are rebalanced periodically (generally 3-4 times per year) to account for changes in market valuations, to ensure Participant accounts are properly aligned to their model portfolio allocations.

• Portfolios are also monitored each Business Day to ensure that any Participant directed activities (such as withdrawals or loans) have not caused the Participant account to vary from the assigned market-adjusted model portfolio by more than a drift allowance specified under the Portfolio Advisory Service^® .

Rebalance transactions shall be created in the nightly cycle for processing on the following Business Day, and will be reflected in Participant accounts on the day following the rebalance transaction date.

(b)Reallocation of Model Portfolios:

If there is a reallocation of the model portfolio (resulting from review of the Plan’s investment options or a change in the Plan investment option menu), those Participant accounts that vary from the revised model portfolio by more than a drift allowance specified under the Portfolio Advisory Service^® shall be flagged for reallocation. Reallocation transactions shall be processed using the same rules as for rebalance transactions.

(c) Changes to Investor Profile:

If a change in model portfolios is required as a result of an annual or ad hoc review of the Participant’s investor profile completed before the close of the New York Stock Exchange (“Market Close”) on a Business Day, the required exchanges shall be processed in that night’s nightly cycle, and reflected in the Participant’s account within the two to three Business Days.

(d) Termination of Service:

If receipt of a Participant’s election to terminate the Portfolio Advisory Service^® is confirmed before Market Close, the account will not be flagged for rebalancing or reallocation. If receipt of a Participant’s election to terminate Portfolio Advisory Service^® is received while transactions are pending, the pending transactions will proceed as outlined above unless the Participant requests cancellation of such transaction. After the transactions are settled, the termination will be processed pursuant to the language above.

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SCHEDULE

INVESTMENT MANAGEMENT AGREEMENT

AGREEMENT, dated as of the date signed by Strategic Advisers, Inc., by and between Strategic Advisers, Inc., an investment adviser registered under the Investment Advisers Act of 1940, as amended (the “Advisers Act”), with its principal offices at 245 Summer Street, Boston, Massachusetts (“Strategic Advisers”) and Zions Bancorporation, the entity with authority to appoint an investment manager provided in Section 1(c) below (the “Authorizing Party”), with principal offices at One South Main Street, Salt Lake City, Utah 84111, and Zions Bancorporation (the “Sponsor”), with its principal offices at One South Main Street, Salt Lake City, Utah 84111. To the extent that the Authorizing Party and the Sponsor are the same, the Authorizing Party’s execution of this Agreement shall also bind the Sponsor.

WITNESSETH

WHEREAS, the Sponsor has established one or more trusts or accounts in connection with Plans listed in Exhibit C pursuant to agreements which permit certain assets of retirement plans (collectively and individually, the “Plan”) held in such trust or account to be managed by a duly-appointed investment manager; and

WHEREAS, pursuant to the instrument governing each of the Plans and associated trusts or accounts, the Authorizing Party has the authority to appoint investment managers with respect to the assets held in such trust or account; and

WHEREAS, the Authorizing Party desires to appoint Strategic Advisers as investment manager to provide discretionary investment management services (the “Managed Account Service”) with respect to trust or account assets allocated to eligible participants in the Plan, and the Sponsor or the Authorizing Party has entered into or amended service, trust or custody agreements for the Plan in contemplation thereof; and

WHEREAS, the Authorizing Party and Strategic Advisers wish to enter into this Investment Management Agreement (the “Agreement”) for the purpose of effecting such appointment and setting forth the obligations of Strategic Advisers in connection with the Managed Account Service;

NOW THEREFORE, in consideration of the promises and the mutual covenants contained herein, the Authorizing Party, the Sponsor, and Strategic Advisers hereby agree as follows:

SECTION 1. Definitions

a. The term “Service Agreement” shall mean the trust, custodial or recordkeeping agreement governing servicing of the Plan by affiliates of Strategic Advisers.

b. The term “Plan” shall mean, collectively and individually, the Plans listed in Exhibit C.

c. The term “Authorizing Party” with respect to a Plan shall mean the entity with authority to retain an investment manager for the trust or account under the governing documents, and in the case of a Plan governed by ERISA, shall be the named fiduciary. Authorizing Parties for each Plan shall be listed in Exhibit C.

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d. to the extent the Plan is intended to be a nonqualified plan that is not funded for tax purposes, the term “investment option” offered to or available to Participants shall mean those hypothetical investment options in which a Participant is allowed to direct his or her hypothetical account for purposes of measuring his or her benefit entitlement under the Plan.

e. To the extent the Plan is intended to be a nonqualified plan that is not funded for tax purposes, the term “individual account” “individual Plan account” or “Participant account” shall mean the notional amount that measures the Participant’s entitlement to benefits under the terms of the Plan.

f. unless otherwise defined herein, the terms used in this Agreement shall have the same meaning as in the trust, custodial or service agreements governing servicing of the Plan by affiliates of Strategic Advisers.

SECTION 2. Appointment of Strategic Advisers.

With respect to each Plan described in Exhibit C, the Authorizing Party hereby appoints Strategic Advisers to manage, pursuant to the guidelines set out in Exhibit B hereof (the “Investment Guidelines”), such of the assets of each trust of account associated with the Plan as may constitute Managed Assets from time to time. “Managed Assets” shall be comprised of all assets of the trust or account associated with each Plan in individual accounts of eligible Participants enrolled in the Managed Account Service, subject to the limitations discussed in Investment Guidelines (excluding securities that are or were formerly employer securities within the meaning of ERISA (“Sponsor Stock”) and assets over which the Participant has no authority to provide investment directions under the terms of the Plan). The conditions for eligibility, enrollment and termination of participation in the Managed Account Service are set forth in the Service Agreement governing the Plan, as it may be amended from time to time.

The Authorizing Party acknowledges receipt of Strategic Advisers’ Part II of Form ADV, or a written disclosure statement containing the information required by such form at least 48 hours prior to entering into this Agreement.

SECTION 3. Acceptance of Appointment as Adviser.

Strategic Advisers accepts the appointment to manage the Managed Assets pursuant to the Investment Guidelines in accordance with the terms and conditions set forth in this Agreement. Strategic Advisers represents that it is an investment adviser registered under the Advisers Act, and that it has full power and authority to enter into this Agreement. Strategic Advisers acknowledges that it is a fiduciary with respect to each of the trusts or accounts to the extent of its discretionary authority and responsibility for investment management of Managed Assets. To the extent the Plan is governed by ERISA, Strategic Advisers acknowledges that it is a fiduciary to the Plan within the meaning of Section 3(21) of ERISA to the extent of its discretionary authority and responsibility for investment management of Managed Assets, and that upon execution of this agreement, it shall function as an investment manager with respect to the Plan within the meaning of Section 3(38) of ERISA.

SECTION 4. Powers, Rights and Duties of Strategic Advisers.

(a) Subject to the provisions hereof pertaining to the responsibilities of fiduciaries, Strategic Advisers shall use its best efforts to provide an opportunity for enhanced returns, consistent

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with appropriate risk diversification, by causing the Managed Assets to be invested and reinvested from time to time only in investment options offered to Participants under the Plan.

(b) Strategic Advisers shall manage the Managed Assets in accordance with the Investment Guidelines, and make investment decisions consistent therewith, but otherwise shall have sole and exclusive authority and discretion to manage and control the investment of the Managed Assets consistent with the provisions of this Agreement. The Investment Guidelines may be changed upon sixty (60) days written notice to the Authorizing Party from Strategic Advisers.

(c) In order to perform its duties hereunder, Strategic Advisers shall have full power and authority to:

(1) direct the trustee, custodian or either of their agents to make purchases and sales of securities or other property for the individual Plan accounts of Participants that are enrolled in the Managed Account Service;

(2) instruct or direct the trustee, custodian or either of their agents to perform any or all of the powers, duties, and authority given to such trustee, custodian or agent in the relevant agreements which are therein subjected to direction by Strategic Advisers and to enforce performance by such trustee, custodian or agent of such powers, duties, and authority;

(3) execute any and all documents necessary to make investments within the scope of the Investment Guidelines, or to carry out other duties of Strategic Advisers hereunder.

(d) Limitations on Duties

(1) Strategic Advisers shall have no responsibility or authority to exercise any shareholder rights that arise with respect to investments in which Managed Assets are invested, nor shall it have responsibility or authority to make decisions with respect to matters, such as litigation or bankruptcy, arising out of the trust’s or account’s ownership of any such investments.

(2) Strategic Advisers shall have no duty or responsibility to manage assets other than Managed Assets (“Other Assets”), including in particular, Sponsor Stock or except as directed in the Investment Guidelines by the Sponsor with respect to Sponsor Stock, to make investment decisions with respect to Managed Assets that offset or counterbalance the specific investment characteristics or behavior of any investment of such Other Assets, even if (i) Strategic Advisers manages such Other Assets pursuant to a separate advisory agreement, or (ii) if those Other Assets are reflected as being owned by or attributable to the Participant on books and records maintained by Strategic Advisers or any of its affiliates. If Strategic Advisers manages Participant accounts in multiple Plans under this Agreement, it shall make investment decisions on each individual Plan account separately.

(3) Notwithstanding any provision of this Agreement, Strategic Advisers shall have no duty to advise the Authorizing Party or any other person with respect to the investment options available under the Plan, or to exercise management authority to add or remove any such investment options to or from the Plan. Strategic Advisers shall have no duty or authority to advise or make recommendations to the Authorizing Party or the Sponsor with respect to any other matter, including without limitation, the impact of Plan rules on the management or diversification of Managed Assets.

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SECTION 5. Strategic Advisers Standard of Care.

Strategic Advisers shall comply with all laws and regulations issued from time to time applicable to the discharge of its duties under this Agreement and shall discharge such duties:

(a) solely in the interest of the Participants and for the exclusive purpose of providing benefits to such Participants and their beneficiaries and defraying reasonable expense of administering the Plan, subject to the provisions in Section 9;

(b) with the care, skill, prudence and diligence under the circumstances then prevailing that a prudent man acting in a like capacity and familiar with such matters would use in the conduct of an enterprise of a like character and with like aims;

(c) by diversifying the Managed Assets in the individual account of each Participant enrolled in the Managed Account Service so as to minimize the risk of large losses, unless under the circumstances it is clearly prudent not to do so, to the extent such diversification is appropriate and achievable with the investment options made available under the Plan, consistent with the Investment Guidelines attached as Exhibit B hereto; and

(d) in accordance with the documents and instruments governing the Plan provided to Strategic Advisers or its agents insofar as such documents and instruments are consistent with the provisions of ERISA if applicable; provided, however, that the duties of Strategic Advisers shall be governed exclusively by this Agreement to the extent that the provisions of any such Plan documents are inconsistent with this Agreement.

Regardless of whether the Plan is subject to ERISA, Strategic Advisers will perform all of its duties hereunder as if the Plan were subject to ERISA, provided, however, that governing Plan documents need not be consistent with ERISA.

SECTION 6. Duties of the Authorizing Party.

The Authorizing Party shall:

(a) direct, or cause to be directed, the trustee, custodian, recordkeeper or their agent to invest the Managed Assets at the direction of Strategic Advisers;

(b) authorize the trustee, custodian or recordkeeper to provide, Strategic Advisers with such information pertaining to the Managed Assets and the Plan as Strategic Advisers may reasonably request, which information Strategic Advisers shall keep as confidential and shall not disclose, except as required by law, to any party other than its subsidiaries or affiliates, without the prior consent of the Authorizing Party;

(c) to the extent not paid by the Sponsor, compensate Strategic Advisers, or cause the trustee, custodian to compensate Strategic Advisers from the trust or account, by deduction from the accounts of Participants enrolled in the Managed Account Service, for Strategic Adviser services under this Agreement in the amounts set forth on Exhibit A as it may be amended by Strategic Advisers in its sole discretion from time to time in accordance with the notice provisions of this Agreement;

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(d) provide, or cause to be provided, such information to Participants as is delivered for that purpose by Strategic Advisers, and

(e) maintain a menu of investment options for the Plan that meets the minimum requirements for implementation of the Managed Account Service, as determined in the sole discretion of Strategic Advisers, and provide at least thirty (30) days’ prior written notice to Strategic Advisers with respect to any change in the menu of investment options available under the Plan. To the extent that the Authorizing Party provides less than thirty (30) days’ notice with respect to changes in the investment options available under the Plan, Strategic Advisers shall be under no obligation to manage the Managed Assets until thirty (30) days from such line-up change has elapsed. If at any time the Authorizing Party fails to maintain a menu of investment options for the Plan that meets the minimum requirements for implementation of the Managed Account Service, as determined by Strategic Advisers in its sole discretion, Strategic Advisers shall be under no obligation to manage the Managed Assets until such time as the Authorizing Party modifies the investment options available under the plan to meet such minimum requirements.

(f) fulfill or comply with such other obligations or restrictions as are outlined in Exhibit B.

SECTION 7. Liability and Indemnification

(a) Strategic Advisers shall indemnify the Authorizing Party and the Sponsor against, and hold the Authorizing Party and the Sponsor harmless from, any and all penalties, damages, losses, liabilities or other expenses (including reasonable attorneys’ fees) (“Losses”) that may be incurred by, imposed upon, or asserted against the Authorizing Party and the Sponsor by reason of any claim, regulatory proceeding, or litigation arising from Strategic Advisers’ breach of this agreement, negligence, breach of fiduciary duty, willful misconduct or bad faith in the provision of the Managed Account Service.

Except for liability under ERISA § 405 that may be imposed with respect to Strategic Advisers’ conduct related to ERISA-governed Plans, Strategic Advisers shall have no responsibility for the acts or omissions of the Authorizing Party, the Sponsor, the trustee, custodian or any of its agents. Strategic Advisers shall have no responsibility for any loss resulting from (i) any breach of fiduciary duty of the Authorizing Party in selecting and monitoring Strategic Advisers, the selection of investment alternatives or the administration of the Plan, (ii) anything done or omitted to be done in good faith reliance on any written, electronic or telephonic directions from the Authorizing Party or any authorized representative thereof or any information provided by a Participant who is enrolled in the Managed Account Service, (iii) anything done or omitted to be done in good faith reliance on any inaccurate, outdated or incomplete employee, Participant or Plan data provided by the Sponsors, the Authorizing Party or Participant as the case may be, or (iv) the Authorizing Party’s failure to perform its obligations hereunder.

(b) the Authorizing Party and the Sponsor shall indemnify Strategic Advisers against and hold it harmless from any and all Losses arising out of a) the failure of either the Authorizing Party or the Sponsor to fulfill its obligations; or b) Strategic Advisers’ action or inaction based on good faith reliance on instructions or information from the Authorizing Party or any authorized representative thereof.

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(c) federal and state securities laws impose liability, under certain circumstances, on persons who act in good faith. Nothing in this Agreement shall waive or limit any rights that the Authorizing Party and Sponsor may have under those laws.

SECTION 8. Compensation

Fees associated with the Managed Account Service are attached hereto as Exhibit A. To the extent that the Trust contains more than one Plan, a separate Exhibit A shall be attached hereto for each such Plan. Strategic Advisers may change the fees associated with the service as described on Exhibit A once per year upon sixty (60) days prior written notice to the Sponsor; provided, however, that should the Authorizing Party change or modify the investment options available through the Plan, Strategic Advisers shall have the right to modify this pricing schedule at any time upon sixty (60) days written notice to the Authorizing Party. Any other changes to the fee schedule shall require written consent of the parties to this Agreement.

SECTION 9. Confidential Information; Other Clients and Services.

Any information or recommendations supplied by or through Strategic Advisers in connection with the Managed Account Service, which are not otherwise in the public domain or previously known to the Authorizing Party or the Sponsor, are to be regarded as proprietary and confidential to Strategic Advisers and its affiliates, and for use only in connection with Managed Assets by Participants, the Authorizing Party, the Sponsor or such persons as any of them may designate in connection with the Managed Assets.

The parties acknowledge that Strategic Advisers may provide similar services to other trusts, accounts and plans, and that nothing in this Agreement shall require Strategic Advisers to disclose to the Authorizing Party or the Sponsor, the Plan or its Participants the existence of such other engagements, or prohibit Strategic Advisers from rendering services to such other clients. The Authorizing Party and the Sponsor acknowledge that Strategic Advisers may use identical, similar or different investment methodologies in providing education or other investment services to the Plan(s) or its (their) Participants, or to other plans, participants or clients. With respect to the allocation of trades among clients, Strategic Advisers will treat each of its client accounts in a fair and equitable manner when allocating orders for the purchase and sale of securities, including mutual fund shares. All allocations among client accounts will be made in a manner consistent with Strategic Advisers’ fiduciary duties, taking into account all relevant factors.

SECTION 10. ERISA, Tax and Other Considerations.

The Authorizing Party and the Sponsor acknowledge that Strategic Advisers is affiliated with other entities that may receive asset-based compensation in connection with the investment options offered under the Plan, including, but not limited to, Fidelity Mutual Funds.

To the extent that the Plans are governed by ERISA, the parties acknowledge that the Managed Account Service, to the extent it would otherwise constitute a prohibited transaction, is intended to comply with Prohibited Transaction Class Exemption 77-4, as it may be amended from time to time (PTCE 77-4), with respect to Fidelity Mutual Funds. To that end, the Authorizing Party acknowledges that it is the named fiduciary of the Plans that are ERISA-governed, it is independent of Strategic Advisers within the meaning of PTCE 77-4, that it has received prospectuses for the Fidelity Mutual Funds available under the Plan, and a full and detailed disclosure of the investment advisory and other fees charged to or paid by the Plan with respect to the Managed Account Service and the investment company(ies). The Authorizing Party further acknowledges that it has received an explanation of the reasons why Strategic Advisers may consider purchases or sales of Fidelity Mutual Funds for accounts of Plan participants electing the Managed Account

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Service. On the basis of such disclosures, the Authorizing Party hereby authorizes the purchase and sale of Fidelity Mutual Funds for accounts of Participants electing the Managed Account Service.

To the extent any of the Plans identified in Exhibit C are intended to be nonqualified deferred compensation plans that are unfunded for tax purposes, no provision herein shall be deemed to cause the Plan to be funded for tax purposes, nor shall any provision herein be deemed to grant Participants in such Plan any rights to assets of the trust or custodial account associated with such Plan.

SECTION 11. Inspection

During and for a reasonable time after the term of this Agreement, Strategic Advisers or its agents shall permit the Authorizing Party or the Sponsor, or either of their agents (including independent public accountants selected by the Authorizing Party or the Sponsor) during business hours to inspect, at the expense of the Sponsor, Strategic Advisers’ records of investment direction provided pursuant to this Agreement.

SECTION 12. Assignment of Agreement or Duties.

No party may assign this Agreement, in whole or in part, nor delegate except as contemplated herein, all or part of the performance of duties required of it by this Agreement without the consent of the other party, except as permitted by applicable law or regulation, provided, however, that Strategic Advisers may assign this Agreement to any affiliate using a negative consent process whereby the Authorizing Party has no less than sixty (60) days to respond to a notice of intended assignment, and failure to respond to any such notice of such intended assignment shall constitute assent to such proposed assignment.

SECTION 13. Applicable Law.

This Agreement shall be administered and construed according to the laws of the Commonwealth of Massachusetts, except as superseded and preempted by ERISA.

SECTION 14. Construction; Validity.

Wherever possible, this Agreement shall be construed in a manner that is consistent with the Managed Account provisions in the Service Agreement. An adjudication or other determination that a provision of this Agreement is invalid or unenforceable shall not affect the validity or enforceability of any remaining provision of this Agreement.

SECTION 15. Termination.

(a) This Agreement shall continue in effect until 1) the termination of recordkeeping services to the Plan by an affiliate of Strategic Advisers; or 2) a specified date at least sixty (60) days after notice of termination has been provided from any party to the other party.

(b) Notwithstanding the foregoing, the Authorizing Party may at any time without prior notice order Strategic Advisers to cease activity, subject to completion of the execution of investment directions already in process with respect to the Managed Assets. Such order to cease activity may be communicated orally subject to immediate written confirmation to Strategic Advisers.

(c) Notwithstanding the foregoing, Strategic Advisers may cease to provide models for the Managed Account Service pursuant to the terms of Section 6(e) of this Agreement.

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(d) Nothing herein shall prohibit Strategic Advisers from terminating management of any individual Participant’s Plan account in accordance with the provisions governing termination of the Managed Account Service to a Participant set forth in the Service Agreement.

(e) If this Agreement is terminated during any period of time for which Strategic Advisers has not been compensated, the fee due to Strategic Advisers for such period shall be prorated to the date of termination.

(f)The indemnification obligations hereunder shall survive termination.

SECTION 16. Notices.

Any notice, instruction, request, consent, demand or other communication required or contemplated by this Agreement to be in writing, shall be given or made if communicated by United States first class mail (or by FAX followed immediately by United States first class mail), addressed as follows:

If to the Authorizing Party

or to the Sponsor:        Sponsor c/o Vice President, Corporate Benefits

One South Main Street, Suite 600

Salt Lake City, Utah, 84111

If to Strategic Advisers:    Strategic Advisers, Inc.

c/o B2B Risk Management - Contracts

245 Summer Street, V7B

Boston, Massachusetts 02210

provided (i) that each party shall, by written notice, promptly inform the other party of any change of address and provided further that any written communication from the Authorizing Party or the Sponsor contemplated hereunder shall be signed by a person authorized to act on behalf of the Authorizing Party or Sponsor under governing documents, and (ii) notwithstanding anything in this Agreement to the contrary and subject to the provisions of the Service Agreement, any communication provided by another party required to be in writing may be provided through any medium that is permitted under applicable law or regulation in lieu of writing.

SECTION 17. Due Authorization.

The Authorizing Party represents and warrants to Strategic Advisers that the Authorizing Party has full power and authority under governing documents to appoint an investment manager for the trust or account associated with the Plan for which it serves as Authorizing Party, and to enter into this Agreement with respect to and on behalf of the Plan. To the extent the Plan is associated with a trust for which the trustee is not an affiliate of Strategic Advisers, the Authorizing Party represents that the provisions of the trust authorize the appointment of an investment manager. To the extent that the Plan is governed by ERISA, the Authorizing Party represents that it is the Plan’s named fiduciary acting in accordance with its duties and obligations under ERISA and the Plan.

All parties to this Agreement hereby represent to the others that it is duly authorized by all applicable laws and regulations to enter into this Agreement, and to be bound thereby, including the indemnification provision set forth in Section 7.

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SECTION 18. Entire Agreement; Amendment.

This Agreement and any exhibits hereto, as well as any provisions of any Service Agreement governing the Managed Account Service, constitute the entire agreement and understanding among the parties hereto, and may not be modified or amended except by a writing executed by the parties.

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IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be executed by their duly authorized officers as of the day and year first above written. By signing below, the undersigned represent that they are authorized to execute this Agreement on behalf of the respective parties. Each party may rely without duty of inquiry on the foregoing representation.

AUTHORIZING PARTY

Signature:	/s/ Dianne James
Print Name:	Diane James
Title:	EVP, Chief HR Officer
Date:	6/3/15

STRATEGIC ADVISERS, INC.

Signature:	/s/ Janet McCormick
Print Name:	Janet McCormick
Title:	Portfolio Manager
Date:	June 23, 2015

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EXHIBIT A

FEES FOR MANAGED ACCOUNT SERVICE

PLAN NAME: Zions Bancorporation Restated Deferred Compensation Plan

PLAN NUMBER: 29149

Beginning upon the Plan’s enrollment in the Managed Account Service, the annual advisory fee for the Managed Account Service will be assessed based on a percentage of the average daily balance of Managed Assets of enrolled Participants. The advisory fee will be charged to cover ongoing management of the Managed Assets, and related servicing and Participant communication. The fee is payable quarterly in arrears, and will be calculated on the basis of daily Participant balances, generally on the 25th day of the last month of the Participant statement cycle quarter (or the next Business Day if the 25^th is not a Business Day).

Unless paid by the Sponsor, the Trustee or its agent will redeem investments in the amount of the net advisory fee directly from enrolled Participants’ Plan accounts on the Business Day following the fee calculation. The amount of the fee deducted from a Participant’s account will be noted on the Participant’s statement.

The annual net advisory fee for the Managed Account Service will be calculated by deducting a Plan Credit Amount (as defined below) from the Plan’s annual gross advisory fee set forth in the table below:

ANNUAL GROSS ADVISORY FEE SCHEDULE

Average daily account balance	Less than 20% eligible participant enrollment	Greater than 20% eligible participant enrollment*
For the first $100,000 or portion thereof	0.61%	0.56%
For the next $100,000 to $250,000, or portion thereof	0.56%	0.46%
All additional assets over $250,000	0.41%	0.31%

*The Gross Advisory fees applicable to plans that exceed 20% enrollment will take effect beginning with the first day of the quarter in which the 20% threshold was exceeded.

Plan Credit Amount and Net Advisory Fee. The purpose of the Plan Credit Amount is to reduce the annual gross advisory fee payable by the Plan by the amount of asset-based fees, if any, Strategic Advisers or its affiliates receive for management of Fidelity Mutual Funds in which Managed Assets are invested, and for other services related to any other investment option offered under the Plan in which Managed Assets are invested.

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This Plan Credit Amount will be calculated daily in the following manner: For each investment option in which Managed Assets are invested, an amount will be calculated equal to the sum of (a) the actual underlying investment management fees paid to Strategic Advisers or its affiliates from such investment if it is a Fidelity Mutual Fund (but not other fund expenses such as transfer agency fees); and (b) the servicing or other fees paid to and retained by Strategic Advisers and its affiliates based on assets or Participants in any investment option other than Fidelity Mutual Funds. The resulting amounts for all investments of Managed Assets will be added together to arrive at the Plan Credit Amount. The Plan Credit Amount will be applied (as a percentage) equally across all Participant accounts to arrive at the annual net advisory fee for that Participant. It is expected that the Plan Credit Amount will vary over time, based upon the funds selected for investment of Managed Assets.

In the event a Participant’s participation in the Managed Account Service is terminated before the end of a quarter but such Participant remains enrolled in the Plan, the gross advisory fee applicable to that quarter will be prorated based on the number of days the account was managed during the quarter, and such Participant’s net advisory fees for the pro-rated quarter will be calculated using the Plan Credit Amount applicable to the prior quarter.

If, prior to the end of a billing quarter, either, (a) a Participant’s participation in the Managed Account Service is terminated simultaneously with that Participant’s enrollment in the Plan, or (b) the Plan terminates the Managed Account Service in its entirety, then the gross advisory fee applicable to that quarter will be prorated based on the number of days the account was managed during the quarter. In such cases, a Participant’s gross advisory fees for the pro-rated quarter will be reduced by a credit amount equal to (a) the actual underlying investment management fees paid to Strategic Advisers or its affiliates from investments in such Participant’s account for Fidelity Mutual Funds (but not other fund expenses such as transfer agency fees); and (b) the servicing or other fees paid to and retained by Strategic Advisers and its affiliates based on assets from such Participant’s account invested in any investment option other than Fidelity Mutual Funds.

As noted above, the Plan’s annual gross advisory fee has been determined based on the composition of the Plan’s available investment options. The Plan’s annual gross advisory fee has been set at a level that, when reduced by the Plan Credit Amount, should result in Participants paying approximately the annual target net fee shown below. Note that, because the Plan Credit Amount will vary over time, the actual amount of net advisory fee paid by any Participant will vary based upon, among other things, the funds selected for investment by the Service and the number and asset allocations of Participants enrolled in the Plan. As a result, a Participant’s net advisory fee may be higher or lower than the target net advisory shown in the table below:

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TARGET ANNUAL NET ADVISORY FEE SCHEDULE

Average daily account balance	Less than 20% eligible participant enrollment	Greater than 20% eligible participant enrollment
For the first $100,000 or portion thereof	0.50%	0.45%
For the next $100,000 to $250,000, or portion thereof	0.45%	0.35%
All additional assets over $250,000	0.30%	0.20%

As noted above, the Plan Credit Amount and annual net advisory fee will vary over time. However, given the investment options available in the Plan as of the date of this Agreement and expected rates of enrollment in the Service, Strategic Advisers anticipates that the annual net advisory fees paid by any Participant in the Plan will fall within the ranges shown below.

TARGET RANGE OF ANNUAL NET ADVISORY FEES

Average daily account balance	Less than 20% eligible participant enrollment	Greater than 20% eligible participant enrollment
For the first $100,000 or portion thereof	0.61% -0.35%	0.56% -0.30%
For the next $100,000 to $250,000, or portion thereof	0.56% -0.30%	0.46% -0.20%
All additional assets over $250,000	0.41% -0.15%	0.31% -0.05%

In rare circumstances, due to the variable nature of the Plan Credit Amount, the net advisory fee payable by Participants may fall outside of the ranges shown above.

The annual net advisory fee shall be charged in addition to any applicable management fees, purchase fee, short-term trading fee, or similar fee payable to the applicable mutual fund, or any fee paid to Strategic Advisers or its affiliates for services rendered to the Plan (including trustee or recordkeeping services) or to the investment options offered under the Plan.

Note: Should the Sponsor or Authorizing Party modify the investment options available through the Plan, Strategic Advisers shall have the right to modify this pricing schedule upon sixty (60) days’ notice.

From time to time, Strategic Advisers may provide a pricing incentive to encourage enrollment in the service. Unless otherwise specified, the pricing incentives will either allow eligible Plan participants who are not

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enrolled in the service to have the Service free of Advisory Fees for a stated period of time, or will allow eligible participants who are not enrolled in the service a stated discount from the plan’s Gross Advisory fee during a specified period. The Authorizing Party will receive prior notice of any pricing incentive. In the unlikely event that the Plan Credit Amount exceeds the Gross Advisory Fees for any quarter in which a pricing incentive is in effect, the excess shall be added to the Plan Credit Amount for the following quarter. In such event, no new pricing incentives will be initiated until any previously unused Plan Credit Amount has been used to offset Gross Advisory Fees. In the event that there is unused Plan Credit Amounts for three successive quarters, the amount shall be converted to a Service Credit, which may be applied exclusively for any Plan-related service obtained by the Plan from Strategic Advisers or any Strategic Advisers affiliate that would otherwise be payable under the terms of existing agreements (other than non-SAI investment management fees, expenses already deducted from Participant accounts, or expenses incorporated into a mil rate). The Service Credit will be credited to a non-interest bearing hypothetical account in respect of the Plan, and will expire twelve months after the end of the quarter in which it was credited.

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EXHIBIT B

INVESTMENT GUIDELINES FOR MANAGED ACCOUNT SERVICE

Strategic Advisers shall manage Managed Assets in an enrolled Participant’s Plan account by selecting from among the investment options available to enrolled Participants in order to provide diversification appropriate for the enrolled Participant.

Strategic Advisers will allocate the Participant’s portfolio across various asset classes to try to achieve the long-term goal of seeking an appropriate level of returns for a given level of risk. Strategic Advisers shall assign the Participant to an appropriate asset mix based on the appropriate risk/reward trade-offs for the Participant. To determine the appropriate mix, Strategic Advisers will consider the Participant’s date of birth, assumed retirement age, plan account balance, and other personal information provided by the record keeper or by the Participant directly through a series of questions or through the incorporation of available online information. This profile information may include the Participant’s risk preferences, investment experience, current and future income, and potential withdrawal needs depending on availability of such information and the willingness of the participant to provide such information. It may also include information about assets held by the participant in other accounts (including amounts held in other plans or accounts serviced by its affiliates) and the asset allocation of these accounts. Strategic Advisers will base its proposed asset mix based on the amount of information provided by the Participant, but shall not require information from the Participant beyond (i) correct date of birth information for each plan Participant, (ii) designating the expected retirement age for each Participant.

Strategic Advisers shall design model portfolios for the plan by selecting a combination of available investment options that track the risk and diversification attributes of the targeted asset allocation within an appropriate range. Based on the information outlined above, Strategic Advisers will assign the Participant to one of the model portfolios.

Participant asset allocation assignments will be reviewed annually, and Participants may be reassigned to an asset allocation that matches his or her updated profile. In addition, a Participant may be reassigned to an appropriate asset allocation and portfolio any time the Participant informs Strategic Advisers of a change to his or her profile. Unless provided by the Participant, Authorizing Party shall be responsible for providing (i) correct date of birth information for each plan Participant, (ii) designating the expected retirement age for each Participant

Authorizing Party shall be responsible for providing correct date of birth information for each Participant. In addition, if the Participant does not provide information designating their expected retirement date, the Authorizing Party will either (i) provide a default retirement date to be used in scoring Participants or (ii) direct Strategic Advisers to use the default retirement date designated by the Social Security Administration for such Participant.

Strategic Advisers shall invest eligible amounts held in, or contributed to, the accounts of enrolled Participants in accordance with the model portfolio, as it may be adjusted from time to time for market fluctuation, provided that Strategic Advisers shall not manage amounts held in Company Stock (if applicable), or contributions required to be invested in Company Stock, except to counterbalance against such Company Stock as described below. Enrolled Participant accounts may be rebalanced periodically to align their accounts to their assigned model portfolio, or if their accounts drift materially from the market-adjusted model portfolio designated by Strategic Advisers. Strategic Advisers may change the

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model portfolios as appropriate for changes in the Plan’s investment options, market performance or economic conditions.

Strategic Advisers shall have no independent obligation under this Agreement to value assets under its management, but shall instead rely upon valuations provided by the Trustee or its agent, or an external money manager, if applicable.

Special Guidelines for Company Stock Holdings (if applicable): Strategic Advisers will not invest Managed Assets in Company Stock. An enrolled Participant whose Plan account is invested in Company Stock will be offered the choice whether to (i) have Strategic Advisers ignore such holdings in assigning an asset allocation to the Participant or (ii) assign an asset allocation that attempts to offset the risk characteristics associated with an investment in a security. If a Participant elects to offset the Company Stock holdings, Strategic Advisers will assign the Participant to a portfolio that attempts to account for their holdings in Company Stock, based on the Participant’s level of Company Stock holdings in his or her Plan account. If a Participant fails to direct Strategic Advisers as to whether to offset or ignore his or her Company Stock positions, the Authorizing Party hereby directs Strategic Advisers to assign the Participant into a portfolio that attempts to offset the risk characteristics of the Participant’s Company Stock position.

Strategic Advisers shall not make decisions with respect to the exercise of any rights accruing to investment options, including without limitation, shareholder rights to vote proxies or tender or exchange shares, or rights arising out of bankruptcy or litigation. Decisions with respect to the exercise of any such rights shall be made in accordance with the provisions of the Trust Agreement, and Strategic Advisers shall not be required to take such matters into account in making its investment decisions.

Universe: Managed Assets of enrolled Participants may be invested in any investment options available for new investment by enrolled Participants other than assets held in or investment options available in self-directed brokerage accounts (and Company Stock, if applicable) subject to the restrictions described below.

Use of Participant Data: To the extent a Participant is enrolled in more than one account within the Managed Account Service, Strategic Advisers will share such Participant data across accounts and Plans. Strategic Advisers will use such Participant’s data provided in connection with one account for updating or management purposes in other accounts of such Participant that are also managed by the Managed Account Service.

Restrictions: Managed Assets of enrolled Participants will not be invested in any investment option that is closed to new investment by eligible Participants. Certain investments – such as “investment strategy options” – may be excluded from the model portfolio construction process. The Authorizing Party shall have the right to impose reasonable restrictions upon Strategic Advisers with respect to investment management, other than those set out here, provided that it shall first propose such restrictions in writing to Strategic Advisers, and provided that Strategic Advisers shall have thirty (30) Business Days to determine whether such restriction is reasonable.

With respect to any stable value option or custom fund option within a plan line-up, Strategic Advisers will use such stable value option in constructing its portfolios if information regarding the composition of such stable value option is made available to Strategic Advisers by the Authorizing Party on an annual basis. If such information regarding the composition of the stable value option is not made available to Strategic Advisers, Strategic Advisers will look for other cash equivalent funds within the plan line-up.

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If none are available, Strategic Advisers will be unable to create appropriate models for the Plan. The plan Fiduciary shall be responsible for obtaining the approval of the stable value option or custom fund provider prior to the implementation of the Service.

The Managed Account Service only considers Fidelity Mutual Funds that have been included in the investment menu chosen by the plan sponsor (or other responsible plan fiduciary) to be offered to plan participants and beneficiaries. To the extent that the Managed Account Service includes one or more Fidelity Mutual Funds in model portfolios utilized by Plan participants, Strategic Advisers believes such fund or funds are appropriate for the Plan because each such fund is an investment option available in the Plan that, in combination with other available investment options in the model portfolio, provide a resulting portfolio that tracks the risk and diversification attributes of the targeted asset allocation. Strategic Advisers constructs and manages each model portfolio by applying a quantitative investment methodology. In constructing model portfolios, Strategic Advisers employs a process that is independent with respect to fund family or investment manager.

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EXHIBIT C

PLAN NAMES AND AUTHORIZING PARTY

Plan Name: Zions Bancorporation Restated Deferred Compensation Plan

Authorizing Party: Zions Bancorporation

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EX-10.2

EXHIBIT 10.2

SIXTH AMENDMENT TO TRUST AGREEMENT BETWEEN

FIDELITY MANAGEMENT TRUST COMPANY AND

ZIONS BANCORPORATION

THIS SIXTH AMENDMENT, dated and effective as of the seventeenth day of August, 2015, by and between Fidelity Management Trust Company (the “Trustee”) and Zions Bancorporation (the “Sponsor”);

WITNESSETH:

WHEREAS, the Trustee and the Sponsor heretofore entered into a Trust Agreement dated July 3, 2006, with regard to the Zions Bancorporation Payshelter 401(k) and Employee Stock Ownership Plan (the “Plan”); and

WHEREAS, the Trustee’s address has changed to 245 Summer Street, Boston, MA 02210, and the parties wish to amend the Agreement to reflect the same; and

WHEREAS, the Trustee and the Sponsor now desire to amend said Trust Agreement as provided for in Section 13thereof;

NOW THEREFORE, in consideration of the above premises, the Trustee and the Sponsor hereby amend the Trust Agreement by:

(1) Amending Section 5(a), Selection of Investments or Investment Options, by restating as follows:

(a)    Selection of Investment Options or Portfolio Advisory Service^®.

The Trustee shall have no responsibility for the selection of investment options under the Trust or the decision to offer Portfolio Advisory Service^®, and shall not render investment advice to any person in connection with the selection of such options or service. The parties acknowledge that the Sponsor is capable of evaluating investment risks independently.  The Sponsor affirms that at all times all decisions concerning the plan's investment line-up or its investment strategies, including, but not limited to, evaluations of information provided by Trustee or its affiliates, shall be made by exercising independent judgment.

“Portfolio Advisory Service^®” shall mean Fidelity Portfolio Advisory Service^® at Work, a discretionary investment management service provided by Strategic Advisers in accordance with the investment management agreement as attached, to eligible Participants who elect the service. “Strategic Advisers” shall mean Strategic Advisers, Inc., an affiliate of the Trustee, and a registered investment adviser, or its successors or assigns.

(2)    Amending Section 5(c), Participant Direction, by restating as follows:

(c)    Participant Direction.

1

As authorized under the Plan, each Participant shall direct the Trustee in which investment option(s) to invest the assets in the Participant’s individual accounts, or shall direct the Trustee to invest such Participant’s individual accounts among the Plan’s available investment options in accordance with investment directions provided by Strategic Advisers under Portfolio Advisory Service^®. In the event the Participant elects to participate in Portfolio Advisory Service^®, he or she may not exercise investment direction over his or her Plan account (except for assets held in Sponsor Stock) until his or her participation in such Portfolio Advisory Service^® has terminated. Investment directions may be made by Participants by use of the telephone exchange system, the internet, or in such other manner as may be agreed upon from time to time by the Sponsor and the Trustee. Participant direction to participate in Portfolio Advisory Service^® (or to cease such participation) shall be made by use of the telephone exchange system, or in such other manner as may be agreed upon from time to time by the Sponsor and the Trustee. Any direction from Participants contemplated by this paragraph shall be made in accordance with the fund exchange provisions set forth in the Plan Administration Manual. The Trustee shall not be liable for any loss or expense that arises from a Participant’s exercise or non-exercise of rights under this Section 5 over the assets in the Participant’s accounts. In the event that the Trustee fails to receive a proper direction from the Participant, the assets shall be invested in the investment option set forth for such purpose on Schedule “C”, until the Trustee receives a proper direction.

(3)    Amending Section 5(d)(i), Execution of Purchases and Sales, by restating as follows:

(i) Execution of Purchases and Sales of Mutual Funds

Purchases and sales of Mutual Funds (other than for exchanges) shall be made on the date on which the Trustee receives from the Administrator In Good Order all information, documentation and wire transfer of funds (if applicable), necessary to accurately effect such transactions. Exchanges of Mutual Funds pursuant to Participant request shall be processed in accordance with the fund exchange provisions set forth in the Plan Administration Manual.

(4) Amending Section 5, Investment of Trust, to add a new subsection (i), as follows:

(i)    Portfolio Advisory Service^®.

(i) This section is intended to authorize appointment of an investment manager as contemplated in Section 402(c)(3) of ERISA. The Sponsor may appoint an investment manager, and, pursuant to the agreement in the Schedule titled “Investment Management Agreement”, the Sponsor has so appointed Strategic Advisers with respect to assets held in the individual Plan accounts of participants enrolled in Portfolio Advisory Service^®. That appointment extends only to Managed Assets, as defined below. Trustee will implement the addition of Portfolio Advisory Service^® on August 17, 2015. In the event the implementation date above is no longer reasonably practicable, the parties will establish another date for implementation.

(ii) Managed Assets shall be comprised of those assets held in or contributed to the individual plan accounts of eligible Participants (other than Sponsor

2

Stock)from whom the Trustee or its agent has received In Good Order an election to participate in the Portfolio Advisory Service^®, and whose participation has not been terminated in accordance with subparagraph (iv). All Participants are eligible for Portfolio Advisory Service^®. In order to be eligible for the service, a Participant must have a Plan account balance equal to or greater than an amount as the Trustee and Strategic Advisers may determine in their sole discretion. Participants who hold non-traditional investment options in their Plan account, such as self-directed brokerage assets, are ineligible for the service until such holdings are liquidated.

(iii) Purchases and sales of investment options initiated by Portfolio Advisory Service^® shall be governed by the operating guidelines set out in the Schedule titled “Operating Guidelines for Investment Options Exchanges -Portfolio Advisory Service^®”.

(iv) For so long as Portfolio Advisory Service^® is offered, Strategic Advisers’ authority with respect to Managed Assets shall begin when Fidelity has confirmed receipt of an election In Good Order from an eligible Participant who has elected to participate in the service (and in the case of plans or portions thereof transferring to Fidelity recordkeeping services, at the conclusion of the Participant Recordkeeping Reconciliation Period). Strategic Advisers’ authority with respect to Managed Assets shall end with respect to a Participant when (A) the Participant terminates his or her election to participate in Portfolio Advisory Service^®; (B) Managed Assets are withdrawn (through loan, withdrawal or distribution) or otherwise transferred out of the Participant’s account for any reason (but only to the extent of such withdrawal or transfer); (C) the Participant’s account is transferred to another plan; (D) Strategic Advisers receives notice from the Trustee or its agent of a Participant’s death, after the Trustee or its agent has been so notified; (E) Strategic Advisers notifies a Participant that the Participant is no longer eligible for the service, or that it will no longer provide the service to such Participant for any reason; (F) when the Plan’s Named Fiduciary directs Strategic Advisers to discontinue its service to any Participant (whether through termination of Strategic Advisers as investment manager with respect to Portfolio Advisory Service^®, or otherwise); or (G) when an affiliate of the Trustee ceases to provide recordkeeping services for the Plan.A Participant’s termination of his or her election to participate in Portfolio Advisory Service^® shall be effective immediately after the Trustee confirms receipt of such election, provided that if confirmation is received after market close and one or more exchange transactions initiated by Strategic Advisers are pending for processing in the nightly cycle for such date, such exchanges shall be processed as of the market close on such date.

(v) The Managed Assets shall be identified on the books and records of the Trust separately from all other assets held by the Trustee under this Agreement. Strategic Advisers shall have the duty and power to direct the Trustee and its affiliates as to the investment of Managed Assets among available investment options, in accordance with governing investment

3

guidelines, but shall have no authority with respect to the exercise of shareholder rights such as voting, or other rights that arise out of the Trust’s ownership of certain securities, such as the right to participate in bankruptcy or other litigation. The Trustee shall follow the direction of Strategic Advisers or its agent regarding the investment and reinvestment of the Managed Assets. The Trustee shall have no authority or responsibility to review, question or countermand any instruction provided by Strategic Advisers to it, unless it has knowledge that by its action or failure to act, it will be participating in or undertaking to conceal a breach of fiduciary duty by Strategic Advisers.

(vi) The Trustee may execute such documents and powers of attorney as may be necessary to authorize Strategic Advisers or its agents, to exercise the investment management duties of Strategic Advisers.

(vii) It is acknowledged that the Strategic Advisers may appoint as its agent any entity, including FIIOC that is also used by the Trustee in performing its duties hereunder.

(viii) Neither the Trustee nor its affiliates performing recordkeeping and administrative services for the Plan shall have any obligation to provide any information concerning an enrolled Participant to Strategic Advisers (including, without limitation, any holdings of such Participant outside of the assets allocated to Portfolio Advisory Service^®), provided, however, that the Trustee and such affiliates shall be obligated to notify Strategic Advisers of an event terminating some or all of its management responsibilities for enrolled Participants.

(ix) A Participant may elect to participate in Portfolio Advisory Service^® by enrolling via the internet, by completing a paper enrollment form, via telephone, or by other means as agreed to by the Sponsor and the Trustee. After the conclusion of any Participant Recordkeeping Reconciliation Period, exchanges shall be made at the NAV next calculated after a Participant has provided In Good Order all information necessary for the service to determine an appropriate target asset mix and model portfolio, and the receipt of his or her election to participate in Portfolio Advisory Service^® has been confirmed. A Participant may elect to terminate participation in Portfolio Advisory Service^® via telephone, the internet, or such other means agreed to by the Sponsor and the Trustee and such termination shall be effective immediately when the Trustee confirms receipt of such instruction, provided that if any exchange transactions are pending at the time the Participant elects to terminate the service, the pending transactions shall be processed at the market close on such date unless the Participant requests cancellation of such transactions. In the absence of such pending transactions, upon completion of unenrollment process of his or her participation in the Portfolio Advisory Service^®, a Participant may request exchanges immediately, and such transactions shall be implemented in accordance with the guidelines set forth in the Plan Administration Manual for such investment option. For so long as a

4

Participant participates in Portfolio Advisory Service^®, he or she may not make exchanges in his or her account (except for exchanges related to Sponsor Stock).

(x) The Named Fiduciary may direct the Trustee in writing to automatically enroll some or all of the Participants into Portfolio Advisory Service^®. If the Named Fiduciary directs the Trustee to automatically enroll any or all of the Participants into Portfolio Advisory Service^®, the Trustee shall re-direct contributions to the Plan accounts of such Participants, and shall re-allocate existing account balances of such Participants, among the Plan’s available investment options in accordance with the investment directions provided by Strategic Advisers unless or until the Participant opts out of Portfolio Advisory Service^®. Assets held in or contributed to the accounts of a Participant who has been automatically enrolled in the Service pursuant to the Named Fiduciary’s direction shall be Managed Assets as described in (ii) above, subject to investment direction by Strategic Advisers until such time as the Participant opts out of participation in Portfolio Advisory Service^® and so notifies the Trustee. Participant direction to opt out of Portfolio Advisory Service^® may be made via the telephone, the internet or in such other manner as may be agreed to from time to time between the Named Fiduciary and the Trustee. Upon receipt and processing of a Participant’s election to opt out of Portfolio Advisory Service^®, the Trustee shall thereafter invest the Participant’s accounts among the investment options under the Plan in accordance with the Participant’s investment instructions. A Participant’s election to opt out of enrollment in Portfolio Advisory Service^® shall be effective immediately after the Trustee confirms receipt of such election, provided that if confirmation is received after market close on a Business Day and one or more exchange transactions initiated by Strategic Advisers are processing in the nightly cycle for such date, such exchanges shall be processed as of the market close of the next Business Day.

(5) Restating Section 11, Resignation, Removal, and Termination Notices, in its entirety, to read as follows:

Section 11. Resignation, Removal, and Termination Notices.

All notices of resignation, removal, or termination under this Agreement must be in writing and mailed to the party to which the notice is being given by certified or registered mail, return receipt requested, to the Sponsor c/o Corporate Benefits Director, One South Main Street, Suite 600, Salt Lake City, Utah, 84111, and to the Trustee c/o Fidelity Workplace Services LLC, PWI Risk & Compliance, 245 Summer Street, V7B, Boston, Massachusetts 02210, or to such other addresses as the parties have notified each other of in the foregoing manner.

(6)    Adding a new Section 23, Investment Management Communications, as follows:

Section 23.     Investment Management Communications.

5

Notwithstanding any provision of the Agreement to the contrary, Sponsor hereby authorizes the Trustee and affiliates of the Trustee, throughout the term of this Agreement and any extensions thereto, to provide Participants with communications related to workplace and/or personal investment management products or services. The Trustee and affiliates of the Trustee may use for such purpose any information received hereunder or otherwise related to the Plan or Sponsor; all such information collected or used shall be treated in accordance with Fidelity Investments’ privacy policy.

(7) Amending Schedule “B”, Fee Schedule, to add the following:

Portfolio Advisory Service^® 

The fees for Portfolio Advisory Service^® are set forth in the Investment Management Agreement Schedule.

Unless paid by the Sponsor or deducted from the Plan pursuant to alternative, valid direction from the Plan’s Named Fiduciary, the quarterly fees for Portfolio Advisory Service^® applicable to each Participant will be calculated, based on a Participant’s daily balances for all days not previously billed, generally on the 25^th day (or next available Business Day) of the final month of the Participant statement cycle quarter. The Trustee shall redeem investments in the amount of such fee pro rata from the investment options in the electing Participant’s Plan account on the Business Day following the fee calculation. This amount will be noted on the Participant’s statement. In the event a Participant’s participation in the service is terminated before the end of a quarter, the fee will be prorated based on the number of days the account was managed during the quarter. Failure to deduct fees shall not constitute a fee waiver.

(8) Adding the Schedule titled “Operating Guidelines for Investment Options Exchanges -Portfolio Advisory Service^®”, as attached hereto.

(9) Adding the Schedule titled "Investment Management Agreement", as attached hereto.

6

IN WITNESS WHEREOF, the Trustee and the Sponsor have caused this Sixth Amendment to be executed by their duly authorized officers effective as of the day and year first above written. By signing below, the undersigned represent that they are authorized to execute this document on behalf of the respective parties. Notwithstanding any contradictory provision of the agreement that this document amends, each party may rely without duty of inquiry on the foregoing representation.

ZIONS BANCORPORATION FIDELITY MANAGEMENT TRUST

COMPANY

By: Dianne James 6/3/15By: Mary Beth Davies 7/1/15

Authorized Signatory Date        FMTC Authorized Signatory Date

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SCHEDULE - OPERATING GUIDELINES FOR INVESTMENT OPTIONS EXCHANGES - PORTFOLIO ADVISORY SERVICE^® 

The following operating guidelines shall govern exchanges of investment options for Participants enrolled in Portfolio Advisory Service^®. These guidelines are subject to change upon written notice to the Sponsor.

(a) Rebalancing Participant Accounts:

Assets in the Participant’s Plan account are rebalanced on an ongoing basis to ensure alignment with the assigned asset allocation strategy and the current model portfolio. There are two primary types of rebalancing activities:

• Portfolios are rebalanced periodically (generally 3-4 times per year) to account for changes in market valuations, to ensure Participant accounts are properly aligned to their model portfolio allocations.

• Portfolios are also monitored each Business Day to ensure that any Participant directed activities (such as withdrawals or loans) have not caused the Participant account to vary from the assigned market-adjusted model portfolio by more than a drift allowance specified under the Portfolio Advisory Service^® .

Rebalance transactions shall be created in the nightly cycle for processing on the following Business Day, and will be reflected in Participant accounts on the day following the rebalance transaction date.

(b)Reallocation of Model Portfolios:

If there is a reallocation of the model portfolio (resulting from review of the Plan’s investment options or a change in the Plan investment option menu), those Participant accounts that vary from the revised model portfolio by more than a drift allowance specified under the Portfolio Advisory Service^® shall be flagged for reallocation. Reallocation transactions shall be processed using the same rules as for rebalance transactions.

(c) Changes to Investor Profile:

If a change in model portfolios is required as a result of an annual or ad hoc review of the Participant’s investor profile completed before the close of the New York Stock Exchange (“Market Close”) on a Business Day, the required exchanges shall be processed in that night’s nightly cycle, and reflected in the Participant’s account within the two to three Business Days.

(d) Termination of Service:

If receipt of a Participant’s election to terminate the Portfolio Advisory Service^® is confirmed before Market Close, the account will not be flagged for rebalancing or reallocation. If receipt of a Participant’s election to terminate Portfolio Advisory Service^® is received while transactions are pending, the pending transactions will proceed as outlined above unless the Participant requests cancellation of such transaction. After the transactions are settled, the termination will be processed pursuant to the language above.

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SCHEDULE

INVESTMENT MANAGEMENT AGREEMENT

AGREEMENT, dated as of the date signed by Strategic Advisers, Inc., by and between Strategic Advisers, Inc., an investment adviser registered under the Investment Advisers Act of 1940, as amended (the “Advisers Act”), with its principal offices at 245 Summer Street, Boston, Massachusetts (“Strategic Advisers”) and Zions Bancorporation, the entity with authority to appoint an investment manager provided in Section 1(c) below (the “Authorizing Party”), with principal offices at One South Main Street, Salt Lake City, Utah 84111, and Zions Bancorporation (the “Sponsor”), with its principal offices at One South Main Street, Salt Lake City, Utah 84111. To the extent that the Authorizing Party and the Sponsor are the same, the Authorizing Party’s execution of this Agreement shall also bind the Sponsor.

WITNESSETH

WHEREAS, the Sponsor has established one or more trusts or accounts in connection with Plans listed in Exhibit C pursuant to agreements which permit certain assets of retirement plans (collectively and individually, the “Plan”) held in such trust or account to be managed by a duly-appointed investment manager; and

WHEREAS, pursuant to the instrument governing each of the Plans and associated trusts or accounts, the Authorizing Party has the authority to appoint investment managers with respect to the assets held in such trust or account; and

WHEREAS, the Authorizing Party desires to appoint Strategic Advisers as investment manager to provide discretionary investment management services (the “Managed Account Service”) with respect to trust or account assets allocated to eligible participants in the Plan, and the Sponsor or the Authorizing Party has entered into or amended service, trust or custody agreements for the Plan in contemplation thereof; and

WHEREAS, the Authorizing Party and Strategic Advisers wish to enter into this Investment Management Agreement (the “Agreement”) for the purpose of effecting such appointment and setting forth the obligations of Strategic Advisers in connection with the Managed Account Service;

NOW THEREFORE, in consideration of the promises and the mutual covenants contained herein, the Authorizing Party, the Sponsor, and Strategic Advisers hereby agree as follows:

SECTION 1. Definitions

a. The term “Service Agreement” shall mean the trust, custodial or recordkeeping agreement governing servicing of the Plan by affiliates of Strategic Advisers.

b. The term “Plan” shall mean, collectively and individually, the Plans listed in Exhibit C.

c. The term “Authorizing Party” with respect to a Plan shall mean the entity with authority to retain an investment manager for the trust or account under the governing documents, and in the case of a Plan governed by ERISA, shall be the named fiduciary. Authorizing Parties for each Plan shall be listed in Exhibit C.

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d. to the extent the Plan is intended to be a nonqualified plan that is not funded for tax purposes, the term “investment option” offered to or available to Participants shall mean those hypothetical investment options in which a Participant is allowed to direct his or her hypothetical account for purposes of measuring his or her benefit entitlement under the Plan.

e. To the extent the Plan is intended to be a nonqualified plan that is not funded for tax purposes, the term “individual account” “individual Plan account” or “Participant account” shall mean the notional amount that measures the Participant’s entitlement to benefits under the terms of the Plan.

f. unless otherwise defined herein, the terms used in this Agreement shall have the same meaning as in the trust, custodial or service agreements governing servicing of the Plan by affiliates of Strategic Advisers.

SECTION 2. Appointment of Strategic Advisers.

With respect to each Plan described in Exhibit C, the Authorizing Party hereby appoints Strategic Advisers to manage, pursuant to the guidelines set out in Exhibit B hereof (the “Investment Guidelines”), such of the assets of each trust of account associated with the Plan as may constitute Managed Assets from time to time. “Managed Assets” shall be comprised of all assets of the trust or account associated with each Plan in individual accounts of eligible Participants enrolled in the Managed Account Service, subject to the limitations discussed in Investment Guidelines (excluding securities that are or were formerly employer securities within the meaning of ERISA (“Sponsor Stock”) and assets over which the Participant has no authority to provide investment directions under the terms of the Plan). The conditions for eligibility, enrollment and termination of participation in the Managed Account Service are set forth in the Service Agreement governing the Plan, as it may be amended from time to time.

The Authorizing Party acknowledges receipt of Strategic Advisers’ Part II of Form ADV, or a written disclosure statement containing the information required by such form at least 48 hours prior to entering into this Agreement.

SECTION 3. Acceptance of Appointment as Adviser.

Strategic Advisers accepts the appointment to manage the Managed Assets pursuant to the Investment Guidelines in accordance with the terms and conditions set forth in this Agreement. Strategic Advisers represents that it is an investment adviser registered under the Advisers Act, and that it has full power and authority to enter into this Agreement. Strategic Advisers acknowledges that it is a fiduciary with respect to each of the trusts or accounts to the extent of its discretionary authority and responsibility for investment management of Managed Assets. To the extent the Plan is governed by ERISA, Strategic Advisers acknowledges that it is a fiduciary to the Plan within the meaning of Section 3(21) of ERISA to the extent of its discretionary authority and responsibility for investment management of Managed Assets, and that upon execution of this agreement, it shall function as an investment manager with respect to the Plan within the meaning of Section 3(38) of ERISA.

SECTION 4. Powers, Rights and Duties of Strategic Advisers.

(a) Subject to the provisions hereof pertaining to the responsibilities of fiduciaries, Strategic Advisers shall use its best efforts to provide an opportunity for enhanced returns, consistent

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with appropriate risk diversification, by causing the Managed Assets to be invested and reinvested from time to time only in investment options offered to Participants under the Plan.

(b) Strategic Advisers shall manage the Managed Assets in accordance with the Investment Guidelines, and make investment decisions consistent therewith, but otherwise shall have sole and exclusive authority and discretion to manage and control the investment of the Managed Assets consistent with the provisions of this Agreement. The Investment Guidelines may be changed upon sixty (60) days written notice to the Authorizing Party from Strategic Advisers.

(c) In order to perform its duties hereunder, Strategic Advisers shall have full power and authority to:

(1) direct the trustee, custodian or either of their agents to make purchases and sales of securities or other property for the individual Plan accounts of Participants that are enrolled in the Managed Account Service;

(2) instruct or direct the trustee, custodian or either of their agents to perform any or all of the powers, duties, and authority given to such trustee, custodian or agent in the relevant agreements which are therein subjected to direction by Strategic Advisers and to enforce performance by such trustee, custodian or agent of such powers, duties, and authority;

(3) execute any and all documents necessary to make investments within the scope of the Investment Guidelines, or to carry out other duties of Strategic Advisers hereunder.

(d) Limitations on Duties

(1) Strategic Advisers shall have no responsibility or authority to exercise any shareholder rights that arise with respect to investments in which Managed Assets are invested, nor shall it have responsibility or authority to make decisions with respect to matters, such as litigation or bankruptcy, arising out of the trust’s or account’s ownership of any such investments.

(2) Strategic Advisers shall have no duty or responsibility to manage assets other than Managed Assets (“Other Assets”), including in particular, Sponsor Stock or except as directed in the Investment Guidelines by the Sponsor with respect to Sponsor Stock, to make investment decisions with respect to Managed Assets that offset or counterbalance the specific investment characteristics or behavior of any investment of such Other Assets, even if (i) Strategic Advisers manages such Other Assets pursuant to a separate advisory agreement, or (ii) if those Other Assets are reflected as being owned by or attributable to the Participant on books and records maintained by Strategic Advisers or any of its affiliates. If Strategic Advisers manages Participant accounts in multiple Plans under this Agreement, it shall make investment decisions on each individual Plan account separately.

(3) Notwithstanding any provision of this Agreement, Strategic Advisers shall have no duty to advise the Authorizing Party or any other person with respect to the investment options available under the Plan, or to exercise management authority to add or remove any such investment options to or from the Plan. Strategic Advisers shall have no duty or authority to advise or make recommendations to the Authorizing Party or the Sponsor with respect to any other matter, including without limitation, the impact of Plan rules on the management or diversification of Managed Assets.

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SECTION 5. Strategic Advisers Standard of Care.

Strategic Advisers shall comply with all laws and regulations issued from time to time applicable to the discharge of its duties under this Agreement and shall discharge such duties:

(a) solely in the interest of the Participants and for the exclusive purpose of providing benefits to such Participants and their beneficiaries and defraying reasonable expense of administering the Plan, subject to the provisions in Section 9;

(b) with the care, skill, prudence and diligence under the circumstances then prevailing that a prudent man acting in a like capacity and familiar with such matters would use in the conduct of an enterprise of a like character and with like aims;

(c) by diversifying the Managed Assets in the individual account of each Participant enrolled in the Managed Account Service so as to minimize the risk of large losses, unless under the circumstances it is clearly prudent not to do so, to the extent such diversification is appropriate and achievable with the investment options made available under the Plan, consistent with the Investment Guidelines attached as Exhibit B hereto; and

(d) in accordance with the documents and instruments governing the Plan provided to Strategic Advisers or its agents insofar as such documents and instruments are consistent with the provisions of ERISA if applicable; provided, however, that the duties of Strategic Advisers shall be governed exclusively by this Agreement to the extent that the provisions of any such Plan documents are inconsistent with this Agreement.

Regardless of whether the Plan is subject to ERISA, Strategic Advisers will perform all of its duties hereunder as if the Plan were subject to ERISA, provided, however, that governing Plan documents need not be consistent with ERISA.

SECTION 6. Duties of the Authorizing Party.

The Authorizing Party shall:

(a) direct, or cause to be directed, the trustee, custodian, recordkeeper or their agent to invest the Managed Assets at the direction of Strategic Advisers;

(b) authorize the trustee, custodian or recordkeeper to provide, Strategic Advisers with such information pertaining to the Managed Assets and the Plan as Strategic Advisers may reasonably request, which information Strategic Advisers shall keep as confidential and shall not disclose, except as required by law, to any party other than its subsidiaries or affiliates, without the prior consent of the Authorizing Party;

(c) to the extent not paid by the Sponsor, compensate Strategic Advisers, or cause the trustee, custodian to compensate Strategic Advisers from the trust or account, by deduction from the accounts of Participants enrolled in the Managed Account Service, for Strategic Adviser services under this Agreement in the amounts set forth on Exhibit A as it may be amended by Strategic Advisers in its sole discretion from time to time in accordance with the notice provisions of this Agreement;

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(d) provide, or cause to be provided, such information to Participants as is delivered for that purpose by Strategic Advisers, and

(e) maintain a menu of investment options for the Plan that meets the minimum requirements for implementation of the Managed Account Service, as determined in the sole discretion of Strategic Advisers, and provide at least thirty (30) days’ prior written notice to Strategic Advisers with respect to any change in the menu of investment options available under the Plan. To the extent that the Authorizing Party provides less than thirty (30) days’ notice with respect to changes in the investment options available under the Plan, Strategic Advisers shall be under no obligation to manage the Managed Assets until thirty (30) days from such line-up change has elapsed. If at any time the Authorizing Party fails to maintain a menu of investment options for the Plan that meets the minimum requirements for implementation of the Managed Account Service, as determined by Strategic Advisers in its sole discretion, Strategic Advisers shall be under no obligation to manage the Managed Assets until such time as the Authorizing Party modifies the investment options available under the plan to meet such minimum requirements.

(f) fulfill or comply with such other obligations or restrictions as are outlined in Exhibit B.

SECTION 7. Liability and Indemnification

(a) Strategic Advisers shall indemnify the Authorizing Party and the Sponsor against, and hold the Authorizing Party and the Sponsor harmless from, any and all penalties, damages, losses, liabilities or other expenses (including reasonable attorneys’ fees) (“Losses”) that may be incurred by, imposed upon, or asserted against the Authorizing Party and the Sponsor by reason of any claim, regulatory proceeding, or litigation arising from Strategic Advisers’ breach of this agreement, negligence, breach of fiduciary duty, willful misconduct or bad faith in the provision of the Managed Account Service.

Except for liability under ERISA § 405 that may be imposed with respect to Strategic Advisers’ conduct related to ERISA-governed Plans, Strategic Advisers shall have no responsibility for the acts or omissions of the Authorizing Party, the Sponsor, the trustee, custodian or any of its agents. Strategic Advisers shall have no responsibility for any loss resulting from (i) any breach of fiduciary duty of the Authorizing Party in selecting and monitoring Strategic Advisers, the selection of investment alternatives or the administration of the Plan, (ii) anything done or omitted to be done in good faith reliance on any written, electronic or telephonic directions from the Authorizing Party or any authorized representative thereof or any information provided by a Participant who is enrolled in the Managed Account Service, (iii) anything done or omitted to be done in good faith reliance on any inaccurate, outdated or incomplete employee, Participant or Plan data provided by the Sponsors, the Authorizing Party or Participant as the case may be, or (iv) the Authorizing Party’s failure to perform its obligations hereunder.

(b) the Authorizing Party and the Sponsor shall indemnify Strategic Advisers against and hold it harmless from any and all Losses arising out of a) the failure of either the Authorizing Party or the Sponsor to fulfill its obligations; or b) Strategic Advisers’ action or inaction based on good faith reliance on instructions or information from the Authorizing Party or any authorized representative thereof.

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(c) federal and state securities laws impose liability, under certain circumstances, on persons who act in good faith. Nothing in this Agreement shall waive or limit any rights that the Authorizing Party and Sponsor may have under those laws.

SECTION 8. Compensation

Fees associated with the Managed Account Service are attached hereto as Exhibit A. To the extent that the Trust contains more than one Plan, a separate Exhibit A shall be attached hereto for each such Plan. Strategic Advisers may change the fees associated with the service as described on Exhibit A once per year upon sixty (60) days prior written notice to the Sponsor; provided, however, that should the Authorizing Party change or modify the investment options available through the Plan, Strategic Advisers shall have the right to modify this pricing schedule at any time upon sixty (60) days written notice to the Authorizing Party. Any other changes to the fee schedule shall require written consent of the parties to this Agreement.

SECTION 9. Confidential Information; Other Clients and Services.

Any information or recommendations supplied by or through Strategic Advisers in connection with the Managed Account Service, which are not otherwise in the public domain or previously known to the Authorizing Party or the Sponsor, are to be regarded as proprietary and confidential to Strategic Advisers and its affiliates, and for use only in connection with Managed Assets by Participants, the Authorizing Party, the Sponsor or such persons as any of them may designate in connection with the Managed Assets.

The parties acknowledge that Strategic Advisers may provide similar services to other trusts, accounts and plans, and that nothing in this Agreement shall require Strategic Advisers to disclose to the Authorizing Party or the Sponsor, the Plan or its Participants the existence of such other engagements, or prohibit Strategic Advisers from rendering services to such other clients. The Authorizing Party and the Sponsor acknowledge that Strategic Advisers may use identical, similar or different investment methodologies in providing education or other investment services to the Plan(s) or its (their) Participants, or to other plans, participants or clients. With respect to the allocation of trades among clients, Strategic Advisers will treat each of its client accounts in a fair and equitable manner when allocating orders for the purchase and sale of securities, including mutual fund shares. All allocations among client accounts will be made in a manner consistent with Strategic Advisers’ fiduciary duties, taking into account all relevant factors.

SECTION 10. ERISA, Tax and Other Considerations.

The Authorizing Party and the Sponsor acknowledge that Strategic Advisers is affiliated with other entities that may receive asset-based compensation in connection with the investment options offered under the Plan, including, but not limited to, Fidelity Mutual Funds.

To the extent that the Plans are governed by ERISA, the parties acknowledge that the Managed Account Service, to the extent it would otherwise constitute a prohibited transaction, is intended to comply with Prohibited Transaction Class Exemption 77-4, as it may be amended from time to time (PTCE 77-4), with respect to Fidelity Mutual Funds. To that end, the Authorizing Party acknowledges that it is the named fiduciary of the Plans that are ERISA-governed, it is independent of Strategic Advisers within the meaning of PTCE 77-4, that it has received prospectuses for the Fidelity Mutual Funds available under the Plan, and a full and detailed disclosure of the investment advisory and other fees charged to or paid by the Plan with respect to the Managed Account Service and the investment company(ies). The Authorizing Party further acknowledges that it has received an explanation of the reasons why Strategic Advisers may consider purchases or sales of Fidelity Mutual Funds for accounts of Plan participants electing the Managed Account

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Service. On the basis of such disclosures, the Authorizing Party hereby authorizes the purchase and sale of Fidelity Mutual Funds for accounts of Participants electing the Managed Account Service.

To the extent any of the Plans identified in Exhibit C are intended to be nonqualified deferred compensation plans that are unfunded for tax purposes, no provision herein shall be deemed to cause the Plan to be funded for tax purposes, nor shall any provision herein be deemed to grant Participants in such Plan any rights to assets of the trust or custodial account associated with such Plan.

SECTION 11. Inspection

During and for a reasonable time after the term of this Agreement, Strategic Advisers or its agents shall permit the Authorizing Party or the Sponsor, or either of their agents (including independent public accountants selected by the Authorizing Party or the Sponsor) during business hours to inspect, at the expense of the Sponsor, Strategic Advisers’ records of investment direction provided pursuant to this Agreement.

SECTION 12. Assignment of Agreement or Duties.

No party may assign this Agreement, in whole or in part, nor delegate except as contemplated herein, all or part of the performance of duties required of it by this Agreement without the consent of the other party, except as permitted by applicable law or regulation, provided, however, that Strategic Advisers may assign this Agreement to any affiliate using a negative consent process whereby the Authorizing Party has no less than sixty (60) days to respond to a notice of intended assignment, and failure to respond to any such notice of such intended assignment shall constitute assent to such proposed assignment.

SECTION 13. Applicable Law.

This Agreement shall be administered and construed according to the laws of the Commonwealth of Massachusetts, except as superseded and preempted by ERISA.

SECTION 14. Construction; Validity.

Wherever possible, this Agreement shall be construed in a manner that is consistent with the Managed Account provisions in the Service Agreement. An adjudication or other determination that a provision of this Agreement is invalid or unenforceable shall not affect the validity or enforceability of any remaining provision of this Agreement.

SECTION 15. Termination.

(a) This Agreement shall continue in effect until 1) the termination of recordkeeping services to the Plan by an affiliate of Strategic Advisers; or 2) a specified date at least sixty (60) days after notice of termination has been provided from any party to the other party.

(b) Notwithstanding the foregoing, the Authorizing Party may at any time without prior notice order Strategic Advisers to cease activity, subject to completion of the execution of investment directions already in process with respect to the Managed Assets. Such order to cease activity may be communicated orally subject to immediate written confirmation to Strategic Advisers.

(c) Notwithstanding the foregoing, Strategic Advisers may cease to provide models for the Managed Account Service pursuant to the terms of Section 6(e) of this Agreement.

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(d) Nothing herein shall prohibit Strategic Advisers from terminating management of any individual Participant’s Plan account in accordance with the provisions governing termination of the Managed Account Service to a Participant set forth in the Service Agreement.

(e) If this Agreement is terminated during any period of time for which Strategic Advisers has not been compensated, the fee due to Strategic Advisers for such period shall be prorated to the date of termination.

(f)The indemnification obligations hereunder shall survive termination.

SECTION 16. Notices.

Any notice, instruction, request, consent, demand or other communication required or contemplated by this Agreement to be in writing, shall be given or made if communicated by United States first class mail (or by FAX followed immediately by United States first class mail), addressed as follows:

If to the Authorizing Party

or to the Sponsor: Sponsor c/o Corporate Benefits Director

One South Main Street, Suite 600

Salt Lake City, Utah, 84111

If to Strategic Advisers:    Strategic Advisers, Inc.

c/o B2B Risk Management - Contracts

245 Summer Street, V7B

Boston, Massachusetts 02210

provided (i) that each party shall, by written notice, promptly inform the other party of any change of address and provided further that any written communication from the Authorizing Party or the Sponsor contemplated hereunder shall be signed by a person authorized to act on behalf of the Authorizing Party or Sponsor under governing documents, and (ii) notwithstanding anything in this Agreement to the contrary and subject to the provisions of the Service Agreement, any communication provided by another party required to be in writing may be provided through any medium that is permitted under applicable law or regulation in lieu of writing.

SECTION 17. Due Authorization.

The Authorizing Party represents and warrants to Strategic Advisers that the Authorizing Party has full power and authority under governing documents to appoint an investment manager for the trust or account associated with the Plan for which it serves as Authorizing Party, and to enter into this Agreement with respect to and on behalf of the Plan. To the extent the Plan is associated with a trust for which the trustee is not an affiliate of Strategic Advisers, the Authorizing Party represents that the provisions of the trust authorize the appointment of an investment manager. To the extent that the Plan is governed by ERISA, the Authorizing Party represents that it is the Plan’s named fiduciary acting in accordance with its duties and obligations under ERISA and the Plan.

All parties to this Agreement hereby represent to the others that it is duly authorized by all applicable laws and regulations to enter into this Agreement, and to be bound thereby, including the indemnification provision set forth in Section 7.

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SECTION 18. Entire Agreement; Amendment.

This Agreement and any exhibits hereto, as well as any provisions of any Service Agreement governing the Managed Account Service, constitute the entire agreement and understanding among the parties hereto, and may not be modified or amended except by a writing executed by the parties.

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IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be executed by their duly authorized officers as of the day and year first above written. By signing below, the undersigned represent that they are authorized to execute this Agreement on behalf of the respective parties. Each party may rely without duty of inquiry on the foregoing representation.

AUTHORIZING PARTY

Signature:	/s/ Dianne James
Print Name:	Diane James
Title:	EVP, Chief HR Officer
Date:	6/3/15

STRATEGIC ADVISERS, INC.

Signature:	/s/ Janet McCormick
Print Name:	Janet McCormick
Title:	Portfolio Manager
Date:	June 23, 2015

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EXHIBIT A

FEES FOR MANAGED ACCOUNT SERVICE

PLAN NAME: Zions Bancorporation Payshelter 401(k) and Employee Stock Ownership Plan

PLAN NUMBER: 29148

Beginning upon the Plan’s enrollment in the Managed Account Service, the annual advisory fee for the Managed Account Service will be assessed based on a percentage of the average daily balance of Managed Assets of enrolled Participants. The advisory fee will be charged to cover ongoing management of the Managed Assets, and related servicing and Participant communication. The fee is payable quarterly in arrears, and will be calculated on the basis of daily Participant balances, generally on the 25th day of the last month of the Participant statement cycle quarter (or the next Business Day if the 25^th is not a Business Day).

Unless paid by the Sponsor, the Trustee or its agent will redeem investments in the amount of the net advisory fee directly from enrolled Participants’ Plan accounts on the Business Day following the fee calculation. The amount of the fee deducted from a Participant’s account will be noted on the Participant’s statement.

The annual net advisory fee for the Managed Account Service will be calculated by deducting a Plan Credit Amount (as defined below) from the Plan’s annual gross advisory fee set forth in the table below:

ANNUAL GROSS ADVISORY FEE SCHEDULE

Average daily account balance	Less than 20% eligible participant enrollment	Greater than 20% eligible participant enrollment*
For the first $100,000 or portion thereof	0.59%	0.54%
For the next $100,000 to $250,000, or portion thereof	0.54%	0.44%
All additional assets over $250,000	0.39%	0.29%

*The Gross Advisory fees applicable to plans that exceed 20% enrollment will take effect beginning with the first day of the quarter in which the 20% threshold was exceeded.

Plan Credit Amount and Net Advisory Fee. The purpose of the Plan Credit Amount is to reduce the annual gross advisory fee payable by the Plan by the amount of asset-based fees, if any, Strategic Advisers or its affiliates receive for management of Fidelity Mutual Funds in which Managed Assets are invested, and for other services related to any other investment option offered under the Plan in which Managed Assets are invested.

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This Plan Credit Amount will be calculated daily in the following manner: For each investment option in which Managed Assets are invested, an amount will be calculated equal to the sum of (a) the actual underlying investment management fees paid to Strategic Advisers or its affiliates from such investment if it is a Fidelity Mutual Fund (but not other fund expenses such as transfer agency fees); and (b) the servicing or other fees paid to and retained by Strategic Advisers and its affiliates based on assets or Participants in any investment option other than Fidelity Mutual Funds. The resulting amounts for all investments of Managed Assets will be added together to arrive at the Plan Credit Amount. The Plan Credit Amount will be applied (as a percentage) equally across all Participant accounts to arrive at the annual net advisory fee for that Participant. It is expected that the Plan Credit Amount will vary over time, based upon the funds selected for investment of Managed Assets.

In the event a Participant’s participation in the Managed Account Service is terminated before the end of a quarter but such Participant remains enrolled in the Plan, the gross advisory fee applicable to that quarter will be prorated based on the number of days the account was managed during the quarter, and such Participant’s net advisory fees for the pro-rated quarter will be calculated using the Plan Credit Amount applicable to the prior quarter.

If, prior to the end of a billing quarter, either, (a) a Participant’s participation in the Managed Account Service is terminated simultaneously with that Participant’s enrollment in the Plan, or (b) the Plan terminates the Managed Account Service in its entirety, then the gross advisory fee applicable to that quarter will be prorated based on the number of days the account was managed during the quarter. In such cases, a Participant’s gross advisory fees for the pro-rated quarter will be reduced by a credit amount equal to (a) the actual underlying investment management fees paid to Strategic Advisers or its affiliates from investments in such Participant’s account for Fidelity Mutual Funds (but not other fund expenses such as transfer agency fees); and (b) the servicing or other fees paid to and retained by Strategic Advisers and its affiliates based on assets from such Participant’s account invested in any investment option other than Fidelity Mutual Funds.

As noted above, the Plan’s annual gross advisory fee has been determined based on the composition of the Plan’s available investment options. The Plan’s annual gross advisory fee has been set at a level that, when reduced by the Plan Credit Amount, should result in Participants paying approximately the annual target net fee shown below. Note that, because the Plan Credit Amount will vary over time, the actual amount of net advisory fee paid by any Participant will vary based upon, among other things, the funds selected for investment by the Service and the number and asset allocations of Participants enrolled in the Plan. As a result, a Participant’s net advisory fee may be higher or lower than the target net advisory shown in the table below:

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TARGET ANNUAL NET ADVISORY FEE SCHEDULE

Average daily account balance	Less than 20% eligible participant enrollment	Greater than 20% eligible participant enrollment
For the first $100,000 or portion thereof	0.50%	0.45%
For the next $100,000 to $250,000, or portion thereof	0.45%	0.35%
All additional assets over $250,000	0.30%	0.20%

As noted above, the Plan Credit Amount and annual net advisory fee will vary over time. However, given the investment options available in the Plan as of the date of this Agreement and expected rates of enrollment in the Service, Strategic Advisers anticipates that the annual net advisory fees paid by any Participant in the Plan will fall within the ranges shown below.

TARGET RANGE OF ANNUAL NET ADVISORY FEES

Average daily account balance	Less than 20% eligible participant enrollment	Greater than 20% eligible participant enrollment
For the first $100,000 or portion thereof	0.59% -0.35%	0.54% -0.30%
For the next $100,000 to $250,000, or portion thereof	0.54% -0.30%	0.44% -0.20%
All additional assets over $250,000	0.39% -0.15%	0.29% -0.05%

In rare circumstances, due to the variable nature of the Plan Credit Amount, the net advisory fee payable by Participants may fall outside of the ranges shown above.

The annual net advisory fee shall be charged in addition to any applicable management fees, purchase fee, short-term trading fee, or similar fee payable to the applicable mutual fund, or any fee paid to Strategic Advisers or its affiliates for services rendered to the Plan (including trustee or recordkeeping services) or to the investment options offered under the Plan.

Note: Should the Sponsor or Authorizing Party modify the investment options available through the Plan, Strategic Advisers shall have the right to modify this pricing schedule upon sixty (60) days’ notice.

From time to time, Strategic Advisers may provide a pricing incentive to encourage enrollment in the service. Unless otherwise specified, the pricing incentives will either allow eligible Plan participants who are not

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enrolled in the service to have the Service free of Advisory Fees for a stated period of time, or will allow eligible participants who are not enrolled in the service a stated discount from the plan’s Gross Advisory fee during a specified period. The Authorizing Party will receive prior notice of any pricing incentive. In the unlikely event that the Plan Credit Amount exceeds the Gross Advisory Fees for any quarter in which a pricing incentive is in effect, the excess shall be added to the Plan Credit Amount for the following quarter. In such event, no new pricing incentives will be initiated until any previously unused Plan Credit Amount has been used to offset Gross Advisory Fees. In the event that there is unused Plan Credit Amounts for three successive quarters, the amount shall be converted to a Service Credit, which may be applied exclusively for any Plan-related service obtained by the Plan from Strategic Advisers or any Strategic Advisers affiliate that would otherwise be payable under the terms of existing agreements (other than non-SAI investment management fees, expenses already deducted from Participant accounts, or expenses incorporated into a mil rate). The Service Credit will be credited to a non-interest bearing hypothetical account in respect of the Plan, and will expire twelve months after the end of the quarter in which it was credited.

22

EXHIBIT B

INVESTMENT GUIDELINES FOR MANAGED ACCOUNT SERVICE

Strategic Advisers shall manage Managed Assets in an enrolled Participant’s Plan account by selecting from among the investment options available to enrolled Participants in order to provide diversification appropriate for the enrolled Participant.

Strategic Advisers will allocate the Participant’s portfolio across various asset classes to try to achieve the long-term goal of seeking an appropriate level of returns for a given level of risk. Strategic Advisers shall assign the Participant to an appropriate asset mix based on the appropriate risk/reward trade-offs for the Participant. To determine the appropriate mix, Strategic Advisers will consider the Participant’s date of birth, assumed retirement age, plan account balance, and other personal information provided by the record keeper or by the Participant directly through a series of questions or through the incorporation of available online information. This profile information may include the Participant’s risk preferences, investment experience, current and future income, and potential withdrawal needs depending on availability of such information and the willingness of the participant to provide such information. It may also include information about assets held by the participant in other accounts (including amounts held in other plans or accounts serviced by its affiliates) and the asset allocation of these accounts. Strategic Advisers will base its proposed asset mix based on the amount of information provided by the Participant, but shall not require information from the Participant beyond (i) correct date of birth information for each plan Participant, (ii) designating the expected retirement age for each Participant.

Strategic Advisers shall design model portfolios for the plan by selecting a combination of available investment options that track the risk and diversification attributes of the targeted asset allocation within an appropriate range. Based on the information outlined above, Strategic Advisers will assign the Participant to one of the model portfolios.

Participant asset allocation assignments will be reviewed annually, and Participants may be reassigned to an asset allocation that matches his or her updated profile. In addition, a Participant may be reassigned to an appropriate asset allocation and portfolio any time the Participant informs Strategic Advisers of a change to his or her profile. Unless provided by the Participant, Authorizing Party shall be responsible for providing (i) correct date of birth information for each plan Participant, (ii) designating the expected retirement age for each Participant

Authorizing Party shall be responsible for providing correct date of birth information for each Participant. In addition, if the Participant does not provide information designating their expected retirement date, the Authorizing Party will either (i) provide a default retirement date to be used in scoring Participants or (ii) direct Strategic Advisers to use the default retirement date designated by the Social Security Administration for such Participant.

Strategic Advisers shall invest eligible amounts held in, or contributed to, the accounts of enrolled Participants in accordance with the model portfolio, as it may be adjusted from time to time for market fluctuation, provided that Strategic Advisers shall not manage amounts held in Company Stock (if applicable), or contributions required to be invested in Company Stock, except to counterbalance against such Company Stock as described below. Enrolled Participant accounts may be rebalanced periodically to align their accounts to their assigned model portfolio, or if their accounts drift materially from the market-adjusted model portfolio designated by Strategic Advisers. Strategic Advisers may change the

23

model portfolios as appropriate for changes in the Plan’s investment options, market performance or economic conditions.

Strategic Advisers shall have no independent obligation under this Agreement to value assets under its management, but shall instead rely upon valuations provided by the Trustee or its agent, or an external money manager, if applicable.

Special Guidelines for Company Stock Holdings (if applicable): Strategic Advisers will not invest Managed Assets in Company Stock. An enrolled Participant whose Plan account is invested in Company Stock will be offered the choice whether to (i) have Strategic Advisers ignore such holdings in assigning an asset allocation to the Participant or (ii) assign an asset allocation that attempts to offset the risk characteristics associated with an investment in a security. If a Participant elects to offset the Company Stock holdings, Strategic Advisers will assign the Participant to a portfolio that attempts to account for their holdings in Company Stock, based on the Participant’s level of Company Stock holdings in his or her Plan account. If a Participant fails to direct Strategic Advisers as to whether to offset or ignore his or her Company Stock positions, the Authorizing Party hereby directs Strategic Advisers to assign the Participant into a portfolio that attempts to offset the risk characteristics of the Participant’s Company Stock position.

Strategic Advisers shall not make decisions with respect to the exercise of any rights accruing to investment options, including without limitation, shareholder rights to vote proxies or tender or exchange shares, or rights arising out of bankruptcy or litigation. Decisions with respect to the exercise of any such rights shall be made in accordance with the provisions of the Trust Agreement, and Strategic Advisers shall not be required to take such matters into account in making its investment decisions.

Universe: Managed Assets of enrolled Participants may be invested in any investment options available for new investment by enrolled Participants other than assets held in or investment options available in self-directed brokerage accounts (and Company Stock, if applicable) subject to the restrictions described below.

Use of Participant Data: To the extent a Participant is enrolled in more than one account within the Managed Account Service, Strategic Advisers will share such Participant data across accounts and Plans. Strategic Advisers will use such Participant’s data provided in connection with one account for updating or management purposes in other accounts of such Participant that are also managed by the Managed Account Service.

Restrictions: Managed Assets of enrolled Participants will not be invested in any investment option that is closed to new investment by eligible Participants. Certain investments – such as “investment strategy options” – may be excluded from the model portfolio construction process. The Authorizing Party shall have the right to impose reasonable restrictions upon Strategic Advisers with respect to investment management, other than those set out here, provided that it shall first propose such restrictions in writing to Strategic Advisers, and provided that Strategic Advisers shall have thirty (30) Business Days to determine whether such restriction is reasonable.

With respect to any stable value option or custom fund option within a plan line-up, Strategic Advisers will use such stable value option in constructing its portfolios if information regarding the composition of such stable value option is made available to Strategic Advisers by the Authorizing Party on an annual basis. If such information regarding the composition of the stable value option is not made available to Strategic Advisers, Strategic Advisers will look for other cash equivalent funds within the plan line-up.

24

If none are available, Strategic Advisers will be unable to create appropriate models for the Plan. The plan Fiduciary shall be responsible for obtaining the approval of the stable value option or custom fund provider prior to the implementation of the Service.

The Managed Account Service only considers Fidelity Mutual Funds that have been included in the investment menu chosen by the plan sponsor (or other responsible plan fiduciary) to be offered to plan participants and beneficiaries. To the extent that the Managed Account Service includes one or more Fidelity Mutual Funds in model portfolios utilized by Plan participants, Strategic Advisers believes such fund or funds are appropriate for the Plan because each such fund is an investment option available in the Plan that, in combination with other available investment options in the model portfolio, provide a resulting portfolio that tracks the risk and diversification attributes of the targeted asset allocation. Strategic Advisers constructs and manages each model portfolio by applying a quantitative investment methodology. In constructing model portfolios, Strategic Advisers employs a process that is independent with respect to fund family or investment manager.

25

EXHIBIT C

PLAN NAMES AND AUTHORIZING PARTY

Plan Name: Zions Bancorporation Payshelter 401(k) and Employee Stock Ownership Plan

Authorizing Party: Zions Bancorporation

26

EX-31.1

EXHIBIT 31.1

CERTIFICATION

Principal Executive Officer

I, Harris H. Simmons, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Zions Bancorporation;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: November 6, 2015

/s/ Harris H. Simmons

Harris H. Simmons, Chairman and Chief Executive Officer

EX-31.2

EXHIBIT 31.2

CERTIFICATION

Principal Financial Officer

I, Paul E. Burdiss, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Zions Bancorporation;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: November 6, 2015

/s/ Paul E. Burdiss

Paul E. Burdiss, Executive Vice President and Chief Financial Officer

EX-32

EXHIBIT 32

CERTIFICATION

Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, 18 U.S.C. §1350, the undersigned officers of Zions Bancorporation (the “Company”) hereby certify that, to the best of their knowledge, the Company’s Quarterly Report for the three months ended September 30, 2015 (the “Report”) fully complies with the requirements of Section 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934 (15 U.S.C. 78m) and that the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: November 6, 2015

/s/ Harris H. Simmons
Name:	Harris H. Simmons
Title:	Chairman and Chief Executive Officer
/s/ Paul E. Burdiss
Name:	Paul E. Burdiss
Title:	Executive Vice President and Chief Financial Officer

The foregoing certification is being furnished solely pursuant to 18 U.S.C. §1350 and is not being filed as part of the Report or as a separate disclosure document.

XML

Investment Securities (Contractual Maturities Debt Securities) (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Investments [Abstract]
Held-to-maturity Securities, Debt Maturities, Next Rolling Twelve Months, Amortized Cost	$ 88,169
Held-to-maturity, Due in one year or less, Estimated fair value	88,714
Held-to-maturity, Due after one year through five years, Amortized cost	168,734
Held-to-maturity, Due after one year through five years, Estimated fair value	171,164
Held-to-maturity, Due after five years through ten years, Amortized cost	152,942
Held-to-maturity, Due after five years through ten years, Estimated fair value	158,331
Held-to-maturity Securities, Debt Maturities, Rolling after Ten Years, Amortized Cost	134,323
Held-to-maturity, Due after ten years, Estimated fair value	134,879
Held-to-maturity, Amortized cost	544,168	$ 686,951
Held-to-maturity, fair value	553,088
Available-for-sale, Due in one year or less, Amortized cost	822,647
Available-for-sale, Due in one year or less, Estimated fair value	824,744
Available-for-sale, Due after one year through five years, Amortized cost	2,314,091
Available-for-sale, Due after one year through five years, Estimated fair value	2,319,836
Available-for-sale, Due after five years through ten years, Amortized cost	1,857,898
Available-for-sale, Due after five years through ten years, Estimated fair value	1,862,624
Available-for-sale, Due after ten years, Amortized cost	968,192
Available-for-sale, Due after ten years, Estimated fair value	970,943
Available-for-sale, Amortized cost	5,962,828	3,819,297
Available-for-sale, Estimated fair value	$ 5,978,147	$ 3,708,625

XML

Loans And Allowance For Credit Losses (Schedule Of Investment Of Accruing And Nonaccruing Loans Modified As Troubled Debt Restructurings) (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended		12 Months Ended
		Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		$ 604	$ 2,265	$ 2,475	$ 2,466	$ 93,400	$ 97,300
Loans Receivable, Gross, Commercial and Industrial		13,035,251		13,035,251		13,035,251		$ 13,162,955
Loans and Leases Receivable, Gross, Consumer, Home Equity		2,347,061		2,347,061		2,347,061		2,321,150
Loans and Leases Receivable, Gross, Consumer, Mortgage		5,268,840		5,268,840		5,268,840		5,200,882
Loans and Leases Receivable, Gross, Consumer, Construction		370,015		370,015		370,015		370,542
Loans and Leases Receivable, Gross, Consumer, Revolving, Credit Card		427,849		427,849		427,849		401,352
Commercial [Member]
Financing Receivable, Modifications [Line Items]
Loans Receivable, Gross, Commercial and Industrial		13,035,251		13,035,251		13,035,251		13,162,955
Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	0	0
Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		9	729	104	848
Owner Occupied [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	1,025	943	1,025
Commercial Loan [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		9	1,754	1,047	1,873
Term [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	833	0
Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	833	0
Home Equity Line of Credit [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	158	0	201
One Through Four Family Residential [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		595	353	595	353
Construction And Other Consumer Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	0	39
ERROR in label resolution.
Financing Receivable, Modifications [Line Items]
Loans and Leases Receivable, Gross, Consumer, Home Equity		2,347,061		2,347,061		2,347,061		2,321,150
Loans and Leases Receivable, Gross, Consumer, Mortgage		5,268,840		5,268,840		5,268,840		5,200,882
Loans and Leases Receivable, Gross, Consumer, Construction		370,015		370,015		370,015		370,542
Loans and Leases Receivable, Gross, Consumer, Revolving, Credit Card		427,849		427,849		427,849		401,352
Consumer Loan [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		595	511	595	593
Accruing [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	96	0	96
Financing Receivable, Modifications, Recorded Investment		178,136		178,136		178,136		245,550
Accruing [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	0	0
Financing Receivable, Modifications, Recorded Investment		13,528		13,528		13,528		20,375
Accruing [Member] | Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	96	0	96
Loans Receivable, Gross, Commercial and Industrial		39,934		39,934		39,934		50,781
Accruing [Member] | Owner Occupied [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	0	0
Financing Receivable, Modifications, Recorded Investment		28,996		28,996		28,996		51,781
Accruing [Member] | Commercial Loan [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	96	0	96
Financing Receivable, Modifications, Recorded Investment		68,930		68,930		68,930		102,562
Accruing [Member] | Term [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	0	0
Financing Receivable, Modifications, Recorded Investment		29,903		29,903		29,903		61,240
Accruing [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	0	0
Financing Receivable, Modifications, Recorded Investment		43,431		43,431		43,431		81,615
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] | One Through Four Family Residential [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	0	0
Loans and Leases Receivable, Gross, Consumer, Home Equity		14,919		14,919		14,919		13,579
Accruing [Member] | Construction And Other Consumer Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	0	0
Loans and Leases Receivable, Gross, Consumer, Mortgage		49,038		49,038		49,038		45,723
Accruing [Member] | ERROR in label resolution.
Financing Receivable, Modifications [Line Items]
Loans and Leases Receivable, Gross, Consumer, Construction		1,818		1,818		1,818		2,071
Accruing [Member] | Consumer Loan [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	0	0
Financing Receivable, Modifications, Recorded Investment		65,775		65,775		65,775		61,373
Accruing [Member] | Interest Rate Below Market [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		10,195		10,195		10,195		33,377
Accruing [Member] | Interest Rate Below Market [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		97		97		97		0
Accruing [Member] | Interest Rate Below Market [Member] | Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Loans Receivable, Gross, Commercial and Industrial		455		455		455		2,611
Accruing [Member] | Interest Rate Below Market [Member] | Owner Occupied [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		2,034		2,034		2,034		19,981
Accruing [Member] | Interest Rate Below Market [Member] | Commercial Loan [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		2,489		2,489		2,489		22,592
Accruing [Member] | Interest Rate Below Market [Member] | Term [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		4,758		4,758		4,758		7,328
Accruing [Member] | Interest Rate Below Market [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		4,855		4,855		4,855		7,328
Accruing [Member] | Interest Rate Below Market [Member] | One Through Four Family Residential [Member]
Financing Receivable, Modifications [Line Items]
Loans and Leases Receivable, Gross, Consumer, Home Equity		192		192		192		742
Accruing [Member] | Interest Rate Below Market [Member] | Construction And Other Consumer Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Loans and Leases Receivable, Gross, Consumer, Mortgage		2,482		2,482		2,482		2,425
Accruing [Member] | Interest Rate Below Market [Member] | ERROR in label resolution.
Financing Receivable, Modifications [Line Items]
Loans and Leases Receivable, Gross, Consumer, Construction		177		177		177		290
Accruing [Member] | Interest Rate Below Market [Member] | Consumer Loan [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		2,851		2,851		2,851		3,457
Accruing [Member] | Multiple Modification Types [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	[1]	125,070		125,070		125,070		148,178
Accruing [Member] | Multiple Modification Types [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	[1]	13,431		13,431		13,431		19,854
Accruing [Member] | Multiple Modification Types [Member] | Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Loans Receivable, Gross, Commercial and Industrial	[1]	35,228		35,228		35,228		34,585
Accruing [Member] | Multiple Modification Types [Member] | Owner Occupied [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	[1]	17,172		17,172		17,172		17,505
Accruing [Member] | Multiple Modification Types [Member] | Commercial Loan [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	[1]	52,400		52,400		52,400		52,090
Accruing [Member] | Multiple Modification Types [Member] | Term [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	[1]	20,825		20,825		20,825		39,007
Accruing [Member] | Multiple Modification Types [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	[1]	34,256		34,256		34,256		58,861
Accruing [Member] | Multiple Modification Types [Member] | One Through Four Family Residential [Member]
Financing Receivable, Modifications [Line Items]
Loans and Leases Receivable, Gross, Consumer, Home Equity	[1]	2,360		2,360		2,360		1,281
Accruing [Member] | Multiple Modification Types [Member] | Construction And Other Consumer Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Loans and Leases Receivable, Gross, Consumer, Mortgage	[1]	34,901		34,901		34,901		34,719
Accruing [Member] | Multiple Modification Types [Member] | ERROR in label resolution.
Financing Receivable, Modifications [Line Items]
Loans and Leases Receivable, Gross, Consumer, Construction	[1]	1,153		1,153		1,153		1,227
Accruing [Member] | Multiple Modification Types [Member] | Consumer Loan [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	[1]	38,414		38,414		38,414		37,227
Accruing [Member] | Other Recorded Investment Resulting From Following Modification [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	[2]	14,421		14,421		14,421		18,801
Accruing [Member] | Other Recorded Investment Resulting From Following Modification [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	[2]	0		0		0		521
Accruing [Member] | Other Recorded Investment Resulting From Following Modification [Member] | Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Loans Receivable, Gross, Commercial and Industrial	[2]	223		223		223		3,855
Accruing [Member] | Other Recorded Investment Resulting From Following Modification [Member] | Owner Occupied [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	[2]	8,151		8,151		8,151		10,960
Accruing [Member] | Other Recorded Investment Resulting From Following Modification [Member] | Commercial Loan [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	[2]	8,374		8,374		8,374		14,815
Accruing [Member] | Other Recorded Investment Resulting From Following Modification [Member] | Term [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	[2]	2,409		2,409		2,409		2,546
Accruing [Member] | Other Recorded Investment Resulting From Following Modification [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	[2]	2,409		2,409		2,409		3,067
Accruing [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, Home Equity	[2]	164		164		164		166
Accruing [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, Mortgage	[2]	3,474		3,474		3,474		753
Accruing [Member] | Other Recorded Investment Resulting From Following Modification [Member] | ERROR in label resolution.
Financing Receivable, Modifications [Line Items]
Loans and Leases Receivable, Gross, Consumer, Construction	[2]	0		0		0		0
Accruing [Member] | Other Recorded Investment Resulting From Following Modification [Member] | Consumer Loan [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	[2]	3,638		3,638		3,638		919
Accruing [Member] | Payment Deferral [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		1,518		1,518		1,518		8,143
Accruing [Member] | Payment Deferral [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		0		0		0		0
Accruing [Member] | Payment Deferral [Member] | Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Loans Receivable, Gross, Commercial and Industrial		108		108		108		3,203
Accruing [Member] | Payment Deferral [Member] | Owner Occupied [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		0		0		0		1,251
Accruing [Member] | Payment Deferral [Member] | Commercial Loan [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		108		108		108		4,454
Accruing [Member] | Payment Deferral [Member] | Term [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		975		975		975		3,153
Accruing [Member] | Payment Deferral [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		975		975		975		3,153
Accruing [Member] | Payment Deferral [Member] | One Through Four Family Residential [Member]
Financing Receivable, Modifications [Line Items]
Loans and Leases Receivable, Gross, Consumer, Home Equity		0		0		0		0
Accruing [Member] | Payment Deferral [Member] | Construction And Other Consumer Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Loans and Leases Receivable, Gross, Consumer, Mortgage		435		435		435		446
Accruing [Member] | Payment Deferral [Member] | ERROR in label resolution.
Financing Receivable, Modifications [Line Items]
Loans and Leases Receivable, Gross, Consumer, Construction		0		0		0		90
Accruing [Member] | Payment Deferral [Member] | Consumer Loan [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		435		435		435		536
Accruing [Member] | Principal Forgiveness [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		19,653		19,653		19,653		19,347
Accruing [Member] | Principal Forgiveness [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		0		0		0		0
Accruing [Member] | Principal Forgiveness [Member] | Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Loans Receivable, Gross, Commercial and Industrial		14		14		14		18
Accruing [Member] | Principal Forgiveness [Member] | Owner Occupied [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		938		938		938		960
Accruing [Member] | Principal Forgiveness [Member] | Commercial Loan [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		952		952		952		978
Accruing [Member] | Principal Forgiveness [Member] | Term [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		170		170		170		179
Accruing [Member] | Principal Forgiveness [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		170		170		170		179
Accruing [Member] | Principal Forgiveness [Member] | One Through Four Family Residential [Member]
Financing Receivable, Modifications [Line Items]
Loans and Leases Receivable, Gross, Consumer, Home Equity		11,143		11,143		11,143		11,320
Accruing [Member] | Principal Forgiveness [Member] | Construction And Other Consumer Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Loans and Leases Receivable, Gross, Consumer, Mortgage		7,388		7,388		7,388		6,828
Accruing [Member] | Principal Forgiveness [Member] | ERROR in label resolution.
Financing Receivable, Modifications [Line Items]
Loans and Leases Receivable, Gross, Consumer, Construction		0		0		0		42
Accruing [Member] | Principal Forgiveness [Member] | Consumer Loan [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		18,531		18,531		18,531		18,190
Accruing [Member] | Maturity Or Team Extension [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		7,279		7,279		7,279		17,704
Accruing [Member] | Maturity Or Team Extension [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		0		0		0		0
Accruing [Member] | Maturity Or Team Extension [Member] | Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Loans Receivable, Gross, Commercial and Industrial		3,906		3,906		3,906		6,509
Accruing [Member] | Maturity Or Team Extension [Member] | Owner Occupied [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		701		701		701		1,124
Accruing [Member] | Maturity Or Team Extension [Member] | Commercial Loan [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		4,607		4,607		4,607		7,633
Accruing [Member] | Maturity Or Team Extension [Member] | Term [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		766		766		766		9,027
Accruing [Member] | Maturity Or Team Extension [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		766		766		766		9,027
Accruing [Member] | Maturity Or Team Extension [Member] | One Through Four Family Residential [Member]
Financing Receivable, Modifications [Line Items]
Loans and Leases Receivable, Gross, Consumer, Home Equity		1,060		1,060		1,060		70
Accruing [Member] | Maturity Or Team Extension [Member] | Construction And Other Consumer Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Loans and Leases Receivable, Gross, Consumer, Mortgage		358		358		358		552
Accruing [Member] | Maturity Or Team Extension [Member] | ERROR in label resolution.
Financing Receivable, Modifications [Line Items]
Loans and Leases Receivable, Gross, Consumer, Construction		488		488		488		422
Accruing [Member] | Maturity Or Team Extension [Member] | Consumer Loan [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		1,906		1,906		1,906		1,044
Nonaccruing [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		604	2,169	2,475	2,370
Financing Receivable, Modifications, Recorded Investment		286,523		286,523		286,523		343,329
Nonaccruing [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	0	0
Financing Receivable, Modifications, Recorded Investment		15,031		15,031		15,031		20,968
Nonaccruing [Member] | Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		9	633	104	752
Loans Receivable, Gross, Commercial and Industrial		45,880		45,880		45,880		27,238
Nonaccruing [Member] | Owner Occupied [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	1,025	943	1,025
Financing Receivable, Modifications, Recorded Investment		17,891		17,891		17,891		19,708
Nonaccruing [Member] | Municipal [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		967		967		967		1,056
Nonaccruing [Member] | Commercial Loan [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		9	1,658	1,047	1,777
Financing Receivable, Modifications, Recorded Investment		64,738		64,738		64,738		48,002
Nonaccruing [Member] | Term [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	833	0
Financing Receivable, Modifications, Recorded Investment		16,107		16,107		16,107		7,735
Nonaccruing [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	833	0
Financing Receivable, Modifications, Recorded Investment		31,138		31,138		31,138		28,703
Nonaccruing [Member] | Home Equity Credit Line [Member]
Financing Receivable, Modifications [Line Items]
Loans and Leases Receivable, Gross, Consumer, Home Equity		1,140		1,140		1,140		1,022
Nonaccruing [Member] | Home Equity Line of Credit [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	158	0	201
Nonaccruing [Member] | One Through Four Family Residential [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		595	353	595	353
Loans and Leases Receivable, Gross, Consumer, Mortgage		11,078		11,078		11,078		19,489
Nonaccruing [Member] | Construction And Other Consumer Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	0	39
Loans and Leases Receivable, Gross, Consumer, Construction		293		293		293		563
Nonaccruing [Member] | ERROR in label resolution.
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		12,511		12,511		12,511		21,074
Nonaccruing [Member] | Consumer Loan [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		595	$ 511	595	$ 593
Financing Receivable, Modifications, Recorded Investment		108,387		108,387		108,387		97,779
Nonaccruing [Member] | Interest Rate Below Market [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		24,481		24,481		24,481		53,842
Nonaccruing [Member] | Interest Rate Below Market [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		10,512		10,512		10,512		11,080
Nonaccruing [Member] | Interest Rate Below Market [Member] | Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Loans Receivable, Gross, Commercial and Industrial		90		90		90		442
Nonaccruing [Member] | Interest Rate Below Market [Member] | Owner Occupied [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		1,220		1,220		1,220		2,714
Nonaccruing [Member] | Interest Rate Below Market [Member] | Municipal [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		0		0		0		0
Nonaccruing [Member] | Interest Rate Below Market [Member] | Commercial Loan [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		1,310		1,310		1,310		3,156
Nonaccruing [Member] | Interest Rate Below Market [Member] | Term [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		2,456		2,456		2,456		2,851
Nonaccruing [Member] | Interest Rate Below Market [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		12,968		12,968		12,968		13,931
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		8		8		8		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		0		0		0		3,378
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		0		0		0		0
Nonaccruing [Member] | Interest Rate Below Market [Member] | ERROR in label resolution.
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		8		8		8		3,378
Nonaccruing [Member] | Interest Rate Below Market [Member] | Consumer Loan [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		14,286		14,286		14,286		20,465
Nonaccruing [Member] | Multiple Modification Types [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	[1]	190,412		190,412		190,412		201,574
Nonaccruing [Member] | Multiple Modification Types [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	[1]	968		968		968		6,427
Nonaccruing [Member] | Multiple Modification Types [Member] | Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Loans Receivable, Gross, Commercial and Industrial	[1]	37,950		37,950		37,950		20,410
Nonaccruing [Member] | Multiple Modification Types [Member] | Owner Occupied [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	[1]	9,060		9,060		9,060		12,040
Nonaccruing [Member] | Multiple Modification Types [Member] | Municipal [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		0		0		0		0
Nonaccruing [Member] | Multiple Modification Types [Member] | Commercial Loan [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	[1]	47,010		47,010		47,010		32,450
Nonaccruing [Member] | Multiple Modification Types [Member] | Term [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	[1]	9,919		9,919		9,919		4,607
Nonaccruing [Member] | Multiple Modification Types [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	[1]	10,887		10,887		10,887		11,034
Nonaccruing [Member] | Multiple Modification Types [Member] | Home Equity Credit Line [Member]
Financing Receivable, Modifications [Line Items]
Loans and Leases Receivable, Gross, Consumer, Home Equity	[1]	48		48		48		399
Nonaccruing [Member] | Multiple Modification Types [Member] | One Through Four Family Residential [Member]
Financing Receivable, Modifications [Line Items]
Loans and Leases Receivable, Gross, Consumer, Mortgage	[1]	7,325		7,325		7,325		9,413
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	[1]	72		72		72		100
Nonaccruing [Member] | Multiple Modification Types [Member] | ERROR in label resolution.
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	[1]	7,445		7,445		7,445		9,912
Nonaccruing [Member] | Multiple Modification Types [Member] | Consumer Loan [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	[1]	65,342		65,342		65,342		53,396
Nonaccruing [Member] | Other Recorded Investment Resulting From Following Modification [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	[2]	27,131		27,131		27,131		33,956
Nonaccruing [Member] | Other Recorded Investment Resulting From Following Modification [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	[2]	3,197		3,197		3,197		3,300
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	[2]	5,351		5,351		5,351		5,199
Nonaccruing [Member] | Other Recorded Investment Resulting From Following Modification [Member] | Owner Occupied [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	[2]	36		36		36		2,852
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		0
Nonaccruing [Member] | Other Recorded Investment Resulting From Following Modification [Member] | Commercial Loan [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	[2]	5,387		5,387		5,387		8,051
Nonaccruing [Member] | Other Recorded Investment Resulting From Following Modification [Member] | Term [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	[2]	2,899		2,899		2,899		277
Nonaccruing [Member] | Other Recorded Investment Resulting From Following Modification [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	[2]	6,096		6,096		6,096		3,577
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	[2]	0		0		0		0
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	[2]	1,227		1,227		1,227		3,527
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	[2]	0		0		0		0
Nonaccruing [Member] | Other Recorded Investment Resulting From Following Modification [Member] | ERROR in label resolution.
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	[2]	1,227		1,227		1,227		3,527
Nonaccruing [Member] | Other Recorded Investment Resulting From Following Modification [Member] | Consumer Loan [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	[2]	12,710		12,710		12,710		15,155
Nonaccruing [Member] | Payment Deferral [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		9,660		9,660		9,660		10,124
Nonaccruing [Member] | Payment Deferral [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		0		0		0		93
Nonaccruing [Member] | Payment Deferral [Member] | Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Loans Receivable, Gross, Commercial and Industrial		2,018		2,018		2,018		611
Nonaccruing [Member] | Payment Deferral [Member] | Owner Occupied [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		5,833		5,833		5,833		883
Nonaccruing [Member] | Payment Deferral [Member] | Municipal [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		0		0		0		0
Nonaccruing [Member] | Payment Deferral [Member] | Commercial Loan [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		7,851		7,851		7,851		1,494
Nonaccruing [Member] | Payment Deferral [Member] | Term [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		0		0		0		0
Nonaccruing [Member] | Payment Deferral [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		0		0		0		93
Nonaccruing [Member] | Payment Deferral [Member] | Home Equity Credit Line [Member]
Financing Receivable, Modifications [Line Items]
Loans and Leases Receivable, Gross, Consumer, Home Equity		58		58		58		203
Nonaccruing [Member] | Payment Deferral [Member] | One Through Four Family Residential [Member]
Financing Receivable, Modifications [Line Items]
Loans and Leases Receivable, Gross, Consumer, Mortgage		173		173		173		191
Nonaccruing [Member] | Payment Deferral [Member] | Construction And Other Consumer Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Loans and Leases Receivable, Gross, Consumer, Construction		60		60		60		0
Nonaccruing [Member] | Payment Deferral [Member] | ERROR in label resolution.
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		291		291		291		394
Nonaccruing [Member] | Payment Deferral [Member] | Consumer Loan [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		8,142		8,142		8,142		1,981
Nonaccruing [Member] | Principal Forgiveness [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		23,101		23,101		23,101		21,718
Nonaccruing [Member] | Principal Forgiveness [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		0		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		0		0
Nonaccruing [Member] | Principal Forgiveness [Member] | Owner Occupied [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		0		0		0		0
Nonaccruing [Member] | Principal Forgiveness [Member] | Municipal [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		0		0		0		0
Nonaccruing [Member] | Principal Forgiveness [Member] | Commercial Loan [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		0		0		0		0
Nonaccruing [Member] | Principal Forgiveness [Member] | Term [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		833		833		833		0
Nonaccruing [Member] | Principal Forgiveness [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		833		833		833		0
Nonaccruing [Member] | Principal Forgiveness [Member] | Home Equity Credit Line [Member]
Financing Receivable, Modifications [Line Items]
Loans and Leases Receivable, Gross, Consumer, Home Equity		512		512		512		420
Nonaccruing [Member] | Principal Forgiveness [Member] | One Through Four Family Residential [Member]
Financing Receivable, Modifications [Line Items]
Loans and Leases Receivable, Gross, Consumer, Mortgage		2,085		2,085		2,085		1,951
Nonaccruing [Member] | Principal Forgiveness [Member] | Construction And Other Consumer Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Loans and Leases Receivable, Gross, Consumer, Construction		18		18		18		0
Nonaccruing [Member] | Principal Forgiveness [Member] | ERROR in label resolution.
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		2,615		2,615		2,615		2,371
Nonaccruing [Member] | Principal Forgiveness [Member] | Consumer Loan [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		3,448		3,448		3,448		2,371
Nonaccruing [Member] | Maturity Or Team Extension [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		11,738		11,738		11,738		22,115
Nonaccruing [Member] | Maturity Or Team Extension [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		354		354		354		68
Nonaccruing [Member] | Maturity Or Team Extension [Member] | Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Loans Receivable, Gross, Commercial and Industrial		471		471		471		576
Nonaccruing [Member] | Maturity Or Team Extension [Member] | Owner Occupied [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		1,742		1,742		1,742		1,219
Nonaccruing [Member] | Maturity Or Team Extension [Member] | Municipal [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		967		967		967		1,056
Nonaccruing [Member] | Maturity Or Team Extension [Member] | Commercial Loan [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		3,180		3,180		3,180		2,851
Nonaccruing [Member] | Maturity Or Team Extension [Member] | Term [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		0		0		0		0
Nonaccruing [Member] | Maturity Or Team Extension [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		354		354		354		68
Nonaccruing [Member] | Maturity Or Team Extension [Member] | Home Equity Credit Line [Member]
Financing Receivable, Modifications [Line Items]
Loans and Leases Receivable, Gross, Consumer, Home Equity		514		514		514		0
Nonaccruing [Member] | Maturity Or Team Extension [Member] | One Through Four Family Residential [Member]
Financing Receivable, Modifications [Line Items]
Loans and Leases Receivable, Gross, Consumer, Mortgage		268		268		268		1,029
Nonaccruing [Member] | Maturity Or Team Extension [Member] | Construction And Other Consumer Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Loans and Leases Receivable, Gross, Consumer, Construction		143		143		143		463
Nonaccruing [Member] | Maturity Or Team Extension [Member] | ERROR in label resolution.
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		925		925		925		1,492
Nonaccruing [Member] | Maturity Or Team Extension [Member] | Consumer Loan [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		$ 4,459		$ 4,459		$ 4,459		$ 4,411

[1] Includes TDRs that resulted from a combination of any of the previous modification types.

[2] 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.

XML

Loans And Allowance For Credit Losses (Summary Of Nonaccrual Loans) (Details) - USD ($) $ in Thousands		Sep. 30, 2015	Dec. 31, 2014
Financing Receivable, Allowance for Credit Losses [Line Items]
Total	[1]	$ 193,883	$ 154,778
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total		15,202	23,880
Consumer Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total		272	254
Commercial and Industrial Sector [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total		167,136	105,591
Finance Leases Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total		306	295
Owner Occupied [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total		76,624	87,243
Municipal [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total		967	1,056
Commercial Loan [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total		245,033	194,185
Term [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total		39,053	25,107
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total		54,255	48,987
Home Equity Line of Credit [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total		9,792	11,430
One Through Four Family Residential [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total		48,592	49,861
Construction And Other Consumer Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total		765	1,735
Revolving Credit Facility [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total		563	196
Consumer Loan [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total		59,984	63,476
Financing Receivables, Total [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total		$ 359,272	$ 306,648

[1] Represents nonaccrual loans that are not past due more than 30 days; however, full payment of principal and interest is still not expected.

XML

Fair Value (Schedule Of Assets With Fair Value Changes On Nonrecurring Basis) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Principal amount of other real estate owned property sold			$ 13,100	$ 30,700
Gains (losses) from fair value changes	$ (8,856)	$ (4,234)	(17,468)	(18,883)
HTM Securities Adjusted For OTTI [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Gains (losses) from fair value changes	0	0	0	(27)
Impaired Loans [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Gains (losses) from fair value changes	(7,666)	(807)	(12,682)	(12,126)
Private Equity Investments [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Gains (losses) from fair value changes	(625)	(339)	(2,903)	(471)
Other Real Estate Owned [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Gains (losses) from fair value changes	(565)	$ (3,088)	(1,883)	$ (6,259)
Fair Value, Inputs, Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of assets measured on nonrecurring basis	0		0		$ 0
Fair Value, Inputs, Level 1 [Member] | Impaired Loans [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of assets measured on nonrecurring basis	0		0		0
Fair Value, Inputs, Level 1 [Member] | Private Equity Investments [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of assets measured on nonrecurring basis	0		0		0
Fair Value, Inputs, Level 1 [Member] | Other Real Estate Owned [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of assets measured on nonrecurring basis	0		0		0
Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of assets measured on nonrecurring basis	16,640		16,640		24,608
Level 2 [Member] | Impaired Loans [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of assets measured on nonrecurring basis	14,419		14,419		16,574
Level 2 [Member] | Private Equity Investments [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of assets measured on nonrecurring basis	0		0		0
Level 2 [Member] | Other Real Estate Owned [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of assets measured on nonrecurring basis	2,221		2,221		8,034
Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of assets measured on nonrecurring basis	2,974		2,974		23,454
Level 3 [Member] | Impaired Loans [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of assets measured on nonrecurring basis	0		0		0
Level 3 [Member] | Private Equity Investments [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of assets measured on nonrecurring basis	2,974		2,974		23,454
Level 3 [Member] | Other Real Estate Owned [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of assets measured on nonrecurring basis	0		0		0
Estimate of Fair Value Measurement [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of assets measured on nonrecurring basis	19,614		19,614		48,062
Estimate of Fair Value Measurement [Member] | Impaired Loans [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of assets measured on nonrecurring basis	14,419		14,419		16,574
Estimate of Fair Value Measurement [Member] | Private Equity Investments [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of assets measured on nonrecurring basis	2,974		2,974		23,454
Estimate of Fair Value Measurement [Member] | Other Real Estate Owned [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of assets measured on nonrecurring basis	$ 2,221		$ 2,221		$ 8,034

XML

Loans And Allowance For Credit Losses (Schedule Of Outstanding Balances Of All Required Payments And The Related Carrying Amounts For PCI Loans) (Details) - USD ($) $ in Thousands		Sep. 30, 2015	Dec. 31, 2014
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Financing Receivable, Recorded Investment, Past Due		$ 318,607	$ 267,586
Financing Receivable, Recorded Investment, Current		39,794,516	39,796,072
Financing Receivable Recorded Investment Thirty To Eighty Nine Days Past Due		166,927	104,491
Financing Receivable Recorded Investments, Equal To and Greater Than 90 Days Past Due		151,680	163,095
Loans and Leases Receivable, Gross		40,113,123	40,063,658
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing		34,857	29,228
Financing Receivable, Recorded Investment, Nonaccrual Status	[1]	193,883	154,778
Commercial		78,180	104,942
Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Commercial Real Estate		81,012	118,217
Consumer		12,204	17,910
Outstanding balance		171,396	241,069
Certain Loans Acquired in Transfer Accounted for as Debt Securities, Carrying Amount, Net		133,221	179,299
ALLL		1,205	2,800
Carrying amount, net		132,016	176,499
Commercial and Industrial Sector [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Financing Receivable, Recorded Investment, Past Due		125,629	70,224
Financing Receivable, Recorded Investment, Current		12,909,622	13,092,731
Financing Receivable Recorded Investment Thirty To Eighty Nine Days Past Due		79,246	28,295
Financing Receivable Recorded Investments, Equal To and Greater Than 90 Days Past Due		46,383	41,929
Loans and Leases Receivable, Gross		13,035,251	13,162,955
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing		4,951	4,677
Financing Receivable, Recorded Investment, Nonaccrual Status	[1]	90,584	64,385
Finance Leases Portfolio Segment [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Financing Receivable, Recorded Investment, Past Due		3,710	250
Financing Receivable, Recorded Investment, Current		423,071	408,724
Financing Receivable Recorded Investment Thirty To Eighty Nine Days Past Due		3,557	225
Financing Receivable Recorded Investments, Equal To and Greater Than 90 Days Past Due		153	25
Loans and Leases Receivable, Gross		426,781	408,974
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing		0	0
Financing Receivable, Recorded Investment, Nonaccrual Status	[1]	55	270
Owner Occupied [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Financing Receivable, Recorded Investment, Past Due		63,974	75,706
Financing Receivable, Recorded Investment, Current		7,077,386	7,275,842
Financing Receivable Recorded Investment Thirty To Eighty Nine Days Past Due		33,198	29,182
Financing Receivable Recorded Investments, Equal To and Greater Than 90 Days Past Due		30,776	46,524
Loans and Leases Receivable, Gross		7,141,360	7,351,548
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing		5,443	3,334
Financing Receivable, Recorded Investment, Nonaccrual Status	[1]	46,283	39,649
Municipal [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Financing Receivable, Recorded Investment, Past Due		48	0
Financing Receivable, Recorded Investment, Current		600,210	520,887
Financing Receivable Recorded Investment Thirty To Eighty Nine Days Past Due		48	0
Financing Receivable Recorded Investments, Equal To and Greater Than 90 Days Past Due		0	0
Loans and Leases Receivable, Gross		600,258	520,887
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing		0	0
Financing Receivable, Recorded Investment, Nonaccrual Status	[1]	967	1,056
Commercial Loan [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Financing Receivable, Recorded Investment, Past Due		193,361	146,180
Financing Receivable, Recorded Investment, Current		21,010,289	21,298,184
Financing Receivable Recorded Investment Thirty To Eighty Nine Days Past Due		116,049	57,702
Financing Receivable Recorded Investments, Equal To and Greater Than 90 Days Past Due		77,312	88,478
Loans and Leases Receivable, Gross		21,203,650	21,444,364
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing		10,394	8,011
Financing Receivable, Recorded Investment, Nonaccrual Status	[1]	137,889	105,360
Commercial Real Estate [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Financing Receivable, Recorded Investment, Past Due		18,272	14,202
Financing Receivable, Recorded Investment, Current		2,195,193	1,972,206
Financing Receivable Recorded Investment Thirty To Eighty Nine Days Past Due		12,447	2,711
Financing Receivable Recorded Investments, Equal To and Greater Than 90 Days Past Due		5,825	11,491
Loans and Leases Receivable, Gross		2,213,465	1,986,408
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing		2,296	92
Financing Receivable, Recorded Investment, Nonaccrual Status	[1]	10,914	12,481
Term [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Financing Receivable, Recorded Investment, Past Due		49,335	43,660
Financing Receivable, Recorded Investment, Current		8,039,923	8,082,940
Financing Receivable Recorded Investment Thirty To Eighty Nine Days Past Due		15,578	14,415
Financing Receivable Recorded Investments, Equal To and Greater Than 90 Days Past Due		33,757	29,245
Loans and Leases Receivable, Gross		8,089,258	8,126,600
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing		20,503	19,700
Financing Receivable, Recorded Investment, Nonaccrual Status	[1]	23,188	13,787
Commercial Real Estate [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Financing Receivable, Recorded Investment, Past Due		67,607	57,862
Financing Receivable, Recorded Investment, Current		10,235,116	10,055,146
Financing Receivable Recorded Investment Thirty To Eighty Nine Days Past Due		28,025	17,126
Financing Receivable Recorded Investments, Equal To and Greater Than 90 Days Past Due		39,582	40,736
Loans and Leases Receivable, Gross		10,302,723	10,113,008
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing		22,799	19,792
Financing Receivable, Recorded Investment, Nonaccrual Status	[1]	34,102	26,268
Home Equity Line of Credit [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Financing Receivable, Recorded Investment, Past Due		10,321	11,183
Financing Receivable, Recorded Investment, Current		2,336,740	2,309,967
Financing Receivable Recorded Investment Thirty To Eighty Nine Days Past Due		4,694	4,503
Financing Receivable Recorded Investments, Equal To and Greater Than 90 Days Past Due		5,627	6,680
Loans and Leases Receivable, Gross		2,347,061	2,321,150
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing		0	1
Financing Receivable, Recorded Investment, Nonaccrual Status	[1]	2,592	1,779
One Through Four Family Residential [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Financing Receivable, Recorded Investment, Past Due		37,835	37,272
Financing Receivable, Recorded Investment, Current		5,231,005	5,163,610
Financing Receivable Recorded Investment Thirty To Eighty Nine Days Past Due		10,137	12,416
Financing Receivable Recorded Investments, Equal To and Greater Than 90 Days Past Due		27,698	24,856
Loans and Leases Receivable, Gross		5,268,840	5,200,882
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing		877	318
Financing Receivable, Recorded Investment, Nonaccrual Status	[1]	18,739	20,599
Construction And Other Consumer Real Estate [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Financing Receivable, Recorded Investment, Past Due		5,732	10,819
Financing Receivable, Recorded Investment, Current		364,283	359,723
Financing Receivable Recorded Investment Thirty To Eighty Nine Days Past Due		5,524	9,675
Financing Receivable Recorded Investments, Equal To and Greater Than 90 Days Past Due		208	1,144
Loans and Leases Receivable, Gross		370,015	370,542
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing		0	160
Financing Receivable, Recorded Investment, Nonaccrual Status	[1]	401	608
Revolving Credit Facility [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Financing Receivable, Recorded Investment, Past Due		2,808	3,470
Financing Receivable, Recorded Investment, Current		425,041	397,882
Financing Receivable Recorded Investment Thirty To Eighty Nine Days Past Due		1,621	2,425
Financing Receivable Recorded Investments, Equal To and Greater Than 90 Days Past Due		1,187	1,045
Loans and Leases Receivable, Gross		427,849	401,352
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing		787	946
Financing Receivable, Recorded Investment, Nonaccrual Status	[1]	114	80
Consumer Portfolio Segment [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Financing Receivable, Recorded Investment, Past Due		943	800
Financing Receivable, Recorded Investment, Current		192,042	211,560
Financing Receivable Recorded Investment Thirty To Eighty Nine Days Past Due		877	644
Financing Receivable Recorded Investments, Equal To and Greater Than 90 Days Past Due		66	156
Loans and Leases Receivable, Gross		192,985	212,360
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing		0	0
Financing Receivable, Recorded Investment, Nonaccrual Status	[1]	46	84
Consumer Loan [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Financing Receivable, Recorded Investment, Past Due		57,639	63,544
Financing Receivable, Recorded Investment, Current		8,549,111	8,442,742
Financing Receivable Recorded Investment Thirty To Eighty Nine Days Past Due		22,853	29,663
Financing Receivable Recorded Investments, Equal To and Greater Than 90 Days Past Due		34,786	33,881
Loans and Leases Receivable, Gross		8,606,750	8,506,286
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing		1,664	1,425
Financing Receivable, Recorded Investment, Nonaccrual Status	[1]	$ 21,892	$ 23,150

[1] Represents nonaccrual loans that are not past due more than 30 days; however, full payment of principal and interest is still not expected.

XML

Loans And Allowance For Credit Losses (Summary Of Changes In The Allowance For Credit Losses) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Jun. 30, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Dec. 31, 2013
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan and Lease Losses, Provision for Loss, Gross	$ (18,262)	$ 54,643	$ (17,334)	$ 109,669
Change In Allowance Covered By F D I C Indemnification	0	(25)	0	(1,286)
Allowance for Loan and Lease Losses, Write-offs	(42,359)	(26,471)	(93,595)	(70,666)
Allowance for Credit Losses [Roll Forward]
Balance at beginning of period	609,375	675,907	604,663	746,291
Net loan and lease charge-offs	(31,197)	(10,962)	(25,557)	(25,059)
Balance at end of period	81,389	79,377	81,389	79,377
Allowance for loan losses	609,375	675,907	604,663	746,291	$ 596,440	$ 609,375	$ 604,663	$ 610,277	$ 675,907	$ 746,291
Reserve for unfunded lending commitments	81,389	79,377	81,389	79,377	81,389	79,961	81,076	79,377	95,472	89,705
Total allowance for credit losses					677,829			689,654
Allowance for Loan and Lease Losses, Recoveries of Bad Debts	11,162	15,509	68,038	45,607
Provision for Unfunded Lending Commitments	1,428	(16,095)	313	(10,328)
Balance at end of period	596,440	610,277	596,440	610,277
Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan and Lease Losses, Provision for Loss, Gross	(22,417)	19,960	(53,292)	38,274
Change In Allowance Covered By F D I C Indemnification	0	(25)	(57)	(1,190)
Allowance for Loan and Lease Losses, Write-offs	(36,961)	(20,084)	(76,734)	(45,903)
Allowance for Credit Losses [Roll Forward]
Balance at beginning of period	437,770	442,965	412,514	469,213
Net loan and lease charge-offs	(32,490)	(10,935)	(38,052)	(17,704)
Balance at end of period	63,582	54,452	63,582	54,452
Allowance for loan losses	437,770	442,965	412,514	469,213	427,697	437,770	412,514	412,045	442,965	469,213
Reserve for unfunded lending commitments	63,582	54,452	63,582	54,452	63,582	60,774	58,931	54,452	52,801	48,345
Total allowance for credit losses					491,279			466,497
Allowance for Loan and Lease Losses, Recoveries of Bad Debts	4,471	9,149	38,682	28,199
Provision for Unfunded Lending Commitments	2,808	1,651	4,651	6,107
Balance at end of period	427,697	412,045	427,697	412,045
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan and Lease Losses, Provision for Loss, Gross	6,621	34,187	38,491	57,350
Change In Allowance Covered By F D I C Indemnification	0	0	57	0
Allowance for Loan and Lease Losses, Write-offs	(1,068)	(3,320)	(5,637)	(14,135)
Allowance for Credit Losses [Roll Forward]
Balance at beginning of period	125,796	187,940	145,009	216,012
Net loan and lease charge-offs	3,094	12	15,694	(4,897)
Balance at end of period	17,172	24,299	17,172	24,299
Allowance for loan losses	125,796	187,940	145,009	216,012	122,269	125,796	145,009	153,765	187,940	216,012
Reserve for unfunded lending commitments	17,172	24,299	17,172	24,299	17,172	18,639	21,517	24,299	38,689	37,485
Total allowance for credit losses					139,441			178,064
Allowance for Loan and Lease Losses, Recoveries of Bad Debts	4,162	3,332	21,331	9,238
Provision for Unfunded Lending Commitments	(1,467)	(14,390)	(4,345)	(13,186)
Balance at end of period	122,269	153,765	122,269	153,765
Consumer Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan and Lease Losses, Provision for Loss, Gross	(2,466)	496	(2,533)	14,045
Change In Allowance Covered By F D I C Indemnification	0	0	0	(96)
Allowance for Loan and Lease Losses, Write-offs	(4,330)	(3,067)	(11,224)	(10,628)
Allowance for Credit Losses [Roll Forward]
Balance at beginning of period	45,809	45,002	47,140	61,066
Net loan and lease charge-offs	(1,801)	(39)	(3,199)	(2,458)
Balance at end of period	635	626	635	626
Allowance for loan losses	45,809	45,002	47,140	61,066	46,474	45,809	47,140	44,467	45,002	61,066
Reserve for unfunded lending commitments	635	626	635	626	635	$ 548	$ 628	626	$ 3,982	$ 3,875
Total allowance for credit losses					$ 47,109			$ 45,093
Allowance for Loan and Lease Losses, Recoveries of Bad Debts	2,529	3,028	8,025	8,170
Provision for Unfunded Lending Commitments	87	(3,356)	7	(3,249)
Balance at end of period	$ 46,474	$ 44,467	$ 46,474	$ 44,467

XML

Operating Segment Information (Tables)

9 Months Ended

Sep. 30, 2015

Segment Reporting Information [Line Items]

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, 2015, we operate seven community/regional banks in distinct geographical areas. Performance assessment and resource allocation are based upon this geographical structure. Zions Bank operates 99 branches in Utah, 24 branches in Idaho, and one branch in Wyoming. Amegy operates 77 branches in Texas. CB&T operates 94 branches in California. NBAZ operates 66 branches in Arizona. NSB operates 49 branches in Nevada. Vectra operates 36 branches in Colorado and one branch in New Mexico. TCBW operates one branch in Washington and one branch in Oregon. Effective April 1, 2015, TCBO was merged into TCBW. Note 1 discusses the approval to merge the Company’s seven subsidiary banks into Zions Bank following the close of business on December 31, 2015. This consolidation will affect the presentation of segment reporting, although certain geographical information will continue.

The operating segment identified as “Other” includes the Parent, Zions Management Services Company (“ZMSC”), certain nonbank financial service subsidiaries, 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. 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, 2015 and 2014:

(In millions)	Zions Bank						Amegy						CB&T						NBAZ						NSB
	2015			2014			2015			2014			2015			2014			2015			2014			2015			2014
CONDENSED INCOME STATEMENT
Net interest income	$	145.9		$	146.7		$	99.9		$	95.8		$	95.0		$	98.9		$	40.4		$	40.3		$	27.6		$	28.4
Provision for loan losses	(5.7		)	(27.7		)	31.8			(3.5		)	1.1			(10.1		)	(2.4		)	(4.5		)	(3.7		)	(4.9		)
Net interest income after provision for loan losses	151.6			174.4			68.1			99.3			93.9			109.0			42.8			44.8			31.3			33.3
Noninterest income	50.4			44.8			33.4			39.4			18.6			17.5			9.9			9.6			9.4			9.6
Noninterest expense	128.8			123.4			90.2			79.1			70.6			77.1			35.8			33.2			32.3			31.8
Income before income taxes	73.2			95.8			11.3			59.6			41.9			49.4			16.9			21.2			8.4			11.1
Income taxes (benefit)	26.4			35.4			3.5			20.4			16.4			19.1			2.6			7.9			2.8			3.7
Net income (loss)	46.8			60.4			7.8			39.2			25.5			30.3			14.3			13.3			5.6			7.4
Net income (loss) applicable to noncontrolling interests	0.6			—			—			—			—			—			—			—			—			—
Net income (loss) applicable to controlling interest	$	46.2		$	60.4		$	7.8		$	39.2		$	25.5		$	30.3		$	14.3		$	13.3		$	5.6		$	7.4
AVERAGE BALANCE SHEET DATA
Total assets	$	18,437		$	18,083		$	13,901		$	13,861		$	11,846		$	11,252		$	5,018		$	4,710		$	4,354		$	4,074
Cash and due from banks	241			322			101			172			88			134			43			70			70			94
Money market investments	2,064			3,083			2,230			2,555			1,944			1,577			441			401			961			741
Total securities	3,211			1,814			319			266			538			258			535			380			864			799
Total loans	12,200			12,312			10,078			9,721			8,532			8,520			3,799			3,660			2,321			2,318
Total deposits	15,944			15,827			11,411			11,382			10,181			9,592			4,360			4,081			3,951			3,670
Shareholder’s equity:
Preferred equity	280			280			226			226			162			162			85			85			50			50
Common equity	1,689			1,578			1,967			1,903			1,415			1,386			500			465			326			330
Noncontrolling interests	17			—			—			—			—			—			—			—			—			—
Total shareholder’s equity	1,986			1,858			2,193			2,129			1,577			1,548			585			550			376			380
	Vectra						TCBW						Other						Consolidated Company
	2015			2014			2015			2014			2015			2014			2015			2014
CONDENSED INCOME STATEMENT
Net interest income	$	25.5		$	25.4		$	7.5		$	8.3		$	(16.4	)	$	(27.1	)	$	425.4		$	416.7
Provision for loan losses	(1.6		)	(3.2		)	(1.2		)	(0.7		)	—			(0.1		)	18.3			(54.7		)
Net interest income after provision for loan losses	27.1			28.6			8.7			9.0			(16.4		)	(27.0		)	407.1			471.4
Noninterest income	5.8			6.0			1.1			1.1			2.2			(12.0		)	130.8			116.0
Noninterest expense	24.7			24.2			5.3			5.7			8.4			64.0			396.1			438.5
Income (loss) before income taxes	8.2			10.4			4.5			4.4			(22.6		)	(103.0		)	141.8			148.9
Income taxes (benefit)	2.7			3.6			1.5			1.5			(15.1		)	(38.5		)	40.8			53.1
Net income (loss)	5.5			6.8			3.0			2.9			(7.5		)	(64.5		)	101.0			95.8
Net income (loss) applicable to noncontrolling interests	—			—			—			—			(0.6		)	—			—			—
Net income (loss) applicable to controlling interest	$	5.5		$	6.8		$	3.0		$	2.9		$	(6.9	)	$	(64.5	)	$	101.0		$	95.8
AVERAGE BALANCE SHEET DATA
Total assets	$	3,246		$	2,751		$	1,058		$	977		$	546		$	420		$	58,406		$	56,128
Cash and due from banks	26			41			29			34			(14		)	(9		)	584			858
Money market investments	514			174			227			140			395			(178		)	8,776			8,493
Total securities	247			152			86			78			56			300			5,856			4,047
Total loans	2,397			2,319			702			712			(4		)	5			40,025			39,567
Total deposits	2,834			2,339			906			827			(668		)	(1,427		)	48,919			46,291
Shareholder’s equity:
Preferred equity	25			26			3			3			173			172			1,004			1,004
Common equity	324			307			111			107			324			145			6,656			6,221
Noncontrolling interests	—			—			—			—			(17		)	—			—			—
Total shareholder’s equity	349			333			114			110			480			317			7,660			7,225

The following schedule presents selected operating segment information for the nine months ended September 30, 2015 and 2014:

(In millions)	Zions Bank						Amegy						CB&T						NBAZ					NSB
	2015			2014			2015			2014			2015			2014			2015		2014			2015			2014
CONDENSED INCOME STATEMENT
Net interest income	$	431.2		$	434.8		$	291.6		$	285.9		$	289.4		$	311.8		$	119.7	$	120.9		$	83.9		$	84.6
Provision for loan losses	(18.7		)	(51.8		)	56.9			5.9			(6.5		)	(25.1		)	1.0		(15.5		)	(15.4		)	(13.2		)
Net interest income after provision for loan losses	449.9			486.6			234.7			280.0			295.9			336.9			118.7		136.4			99.3			97.8
Noninterest income 1	90.6			139.0			101.2			107.7			56.5			37.1			29.2		26.2			26.8			23.4
Noninterest expense	385.5			366.0			280.9			258.6			224.4			244.8			109.5		109.4			98.0			97.9
Income before income taxes	155.0			259.6			55.0			129.1			128.0			129.2			38.4		53.2			28.1			23.3
Income taxes (benefit)	54.4			95.4			17.2			43.6			50.0			50.2			10.0		19.7			9.4			7.7
Net income (loss)	100.6			164.2			37.8			85.5			78.0			79.0			28.4		33.5			18.7			15.6
Net income (loss) applicable to noncontrolling interests	2.0			—			—			—			—			—			—		—			—			—
Net income (loss) applicable to controlling interest	$	98.6		$	164.2		$	37.8		$	85.5		$	78.0		$	79.0		$	28.4	$	33.5		$	18.7		$	15.6
AVERAGE BALANCE SHEET DATA
Total assets	$	18,628		$	17,983		$	13,846		$	13,650		$	11,578		$	11,063		$	4,929	$	4,673		$	4,277		$	4,046
Cash and due from banks	263			332			127			235			88			152			45		72			72			88
Money market investments	2,664			3,101			2,086			2,498			1,794			1,321			413		368			861			735
Total securities	2,827			1,720			295			256			434			274			466		372			854			789
Total loans	12,184			12,292			10,170			9,550			8,502			8,571			3,803		3,668			2,354			2,314
Total deposits	16,186			15,709			11,362			11,217			9,917			9,421			4,277		4,016			3,870			3,648
Shareholder’s equity:
Preferred equity	280			280			226			202			162			162			85		101			50			50
Common equity	1,654			1,556			1,953			1,875			1,405			1,368			492		447			330			324
Noncontrolling interests	13			—			—			—			—			—			—		—			—			—
Total shareholder’s equity	1,947			1,836			2,179			2,077			1,567			1,530			577		548			380			374
	Vectra						TCBW						Other						Consolidated Company
	2015			2014			2015			2014			2015			2014			2015		2014
CONDENSED INCOME STATEMENT
Net interest income	$	77.6		$	76.1		$	22.6		$	24.0		$	(49.6	)	$	(88.6	)	$	1,266.4	$	1,249.5
Provision for loan losses	1.9			(9.5		)	(1.8		)	(0.4		)	(0.1		)	(0.1		)	17.3		(109.7		)
Net interest income after provision for loan losses	75.7			85.6			24.4			24.4			(49.5		)	(88.5		)	1,249.1		1,359.2
Noninterest income 1	15.6			15.7			3.3			1.4			(70.1		)	28.7			253.1		379.2
Noninterest expense	73.0			73.2			11.6			17.1			14.8			75.6			1,197.7		1,242.6
Income (loss) before income taxes	18.3			28.1			16.1			8.7			(134.4		)	(135.4		)	304.5		495.8
Income taxes (benefit)	5.8			9.7			5.5			3.0			(54.8		)	(50.1		)	97.5		179.2
Net income (loss)	12.5			18.4			10.6			5.7			(79.6		)	(85.3		)	207.0		316.6
Net income (loss) applicable to noncontrolling interests	—			—			—			—			(2.0		)	—			—		—
Net income (loss) applicable to controlling interest	$	12.5		$	18.4		$	10.6		$	5.7		$	(77.6	)	$	(85.3	)	$	207.0	$	316.6
AVERAGE BALANCE SHEET DATA
Total assets	$	3,154		$	2,639		$	1,007		$	957		$	154		$	524		$	57,573	$	55,535
Cash and due from banks	28			45			33			28			(17		)	(14		)	639		938
Money market investments	459			70			166			122			(39		)	(168		)	8,404		8,047
Total securities	221			158			82			84			120			409			5,299		4,062
Total loans	2,385			2,305			712			710			1			4			40,111		39,414
Total deposits	2,745			2,231			863			809			(1,039		)	(1,205		)	48,181		45,846
Shareholder’s equity:
Preferred equity	25			46			3			3			173			160			1,004		1,004
Common equity	320			279			107			105			258			(98		)	6,519		5,856
Noncontrolling interests	—			—			—			—			(13		)	—			—		—
Total shareholder’s equity	345			325			110			108			418			62			7,523		6,860

¹  Includes loss on sale of CDOs in the second quarter of 2015 of (in millions) $62.5 (Zions Bank), $0.6 (NSB), $0.6 (Vectra) and $73.1 (Other).

Schedule of Segment Reporting Information, by Segment

(In millions)	Zions Bank						Amegy						CB&T						NBAZ						NSB
	2015			2014			2015			2014			2015			2014			2015			2014			2015			2014
CONDENSED INCOME STATEMENT
Net interest income	$	145.9		$	146.7		$	99.9		$	95.8		$	95.0		$	98.9		$	40.4		$	40.3		$	27.6		$	28.4
Provision for loan losses	(5.7		)	(27.7		)	31.8			(3.5		)	1.1			(10.1		)	(2.4		)	(4.5		)	(3.7		)	(4.9		)
Net interest income after provision for loan losses	151.6			174.4			68.1			99.3			93.9			109.0			42.8			44.8			31.3			33.3
Noninterest income	50.4			44.8			33.4			39.4			18.6			17.5			9.9			9.6			9.4			9.6
Noninterest expense	128.8			123.4			90.2			79.1			70.6			77.1			35.8			33.2			32.3			31.8
Income before income taxes	73.2			95.8			11.3			59.6			41.9			49.4			16.9			21.2			8.4			11.1
Income taxes (benefit)	26.4			35.4			3.5			20.4			16.4			19.1			2.6			7.9			2.8			3.7
Net income (loss)	46.8			60.4			7.8			39.2			25.5			30.3			14.3			13.3			5.6			7.4
Net income (loss) applicable to noncontrolling interests	0.6			—			—			—			—			—			—			—			—			—
Net income (loss) applicable to controlling interest	$	46.2		$	60.4		$	7.8		$	39.2		$	25.5		$	30.3		$	14.3		$	13.3		$	5.6		$	7.4
AVERAGE BALANCE SHEET DATA
Total assets	$	18,437		$	18,083		$	13,901		$	13,861		$	11,846		$	11,252		$	5,018		$	4,710		$	4,354		$	4,074
Cash and due from banks	241			322			101			172			88			134			43			70			70			94
Money market investments	2,064			3,083			2,230			2,555			1,944			1,577			441			401			961			741
Total securities	3,211			1,814			319			266			538			258			535			380			864			799
Total loans	12,200			12,312			10,078			9,721			8,532			8,520			3,799			3,660			2,321			2,318
Total deposits	15,944			15,827			11,411			11,382			10,181			9,592			4,360			4,081			3,951			3,670
Shareholder’s equity:
Preferred equity	280			280			226			226			162			162			85			85			50			50
Common equity	1,689			1,578			1,967			1,903			1,415			1,386			500			465			326			330
Noncontrolling interests	17			—			—			—			—			—			—			—			—			—
Total shareholder’s equity	1,986			1,858			2,193			2,129			1,577			1,548			585			550			376			380
	Vectra						TCBW						Other						Consolidated Company
	2015			2014			2015			2014			2015			2014			2015			2014
CONDENSED INCOME STATEMENT
Net interest income	$	25.5		$	25.4		$	7.5		$	8.3		$	(16.4	)	$	(27.1	)	$	425.4		$	416.7
Provision for loan losses	(1.6		)	(3.2		)	(1.2		)	(0.7		)	—			(0.1		)	18.3			(54.7		)
Net interest income after provision for loan losses	27.1			28.6			8.7			9.0			(16.4		)	(27.0		)	407.1			471.4
Noninterest income	5.8			6.0			1.1			1.1			2.2			(12.0		)	130.8			116.0
Noninterest expense	24.7			24.2			5.3			5.7			8.4			64.0			396.1			438.5
Income (loss) before income taxes	8.2			10.4			4.5			4.4			(22.6		)	(103.0		)	141.8			148.9
Income taxes (benefit)	2.7			3.6			1.5			1.5			(15.1		)	(38.5		)	40.8			53.1
Net income (loss)	5.5			6.8			3.0			2.9			(7.5		)	(64.5		)	101.0			95.8
Net income (loss) applicable to noncontrolling interests	—			—			—			—			(0.6		)	—			—			—
Net income (loss) applicable to controlling interest	$	5.5		$	6.8		$	3.0		$	2.9		$	(6.9	)	$	(64.5	)	$	101.0		$	95.8
AVERAGE BALANCE SHEET DATA
Total assets	$	3,246		$	2,751		$	1,058		$	977		$	546		$	420		$	58,406		$	56,128
Cash and due from banks	26			41			29			34			(14		)	(9		)	584			858
Money market investments	514			174			227			140			395			(178		)	8,776			8,493
Total securities	247			152			86			78			56			300			5,856			4,047
Total loans	2,397			2,319			702			712			(4		)	5			40,025			39,567
Total deposits	2,834			2,339			906			827			(668		)	(1,427		)	48,919			46,291
Shareholder’s equity:
Preferred equity	25			26			3			3			173			172			1,004			1,004
Common equity	324			307			111			107			324			145			6,656			6,221
Noncontrolling interests	—			—			—			—			(17		)	—			—			—
Total shareholder’s equity	349			333			114			110			480			317			7,660			7,225

The following schedule presents selected operating segment information for the nine months ended September 30, 2015 and 2014:

(In millions)	Zions Bank						Amegy						CB&T						NBAZ					NSB
	2015			2014			2015			2014			2015			2014			2015		2014			2015			2014
CONDENSED INCOME STATEMENT
Net interest income	$	431.2		$	434.8		$	291.6		$	285.9		$	289.4		$	311.8		$	119.7	$	120.9		$	83.9		$	84.6
Provision for loan losses	(18.7		)	(51.8		)	56.9			5.9			(6.5		)	(25.1		)	1.0		(15.5		)	(15.4		)	(13.2		)
Net interest income after provision for loan losses	449.9			486.6			234.7			280.0			295.9			336.9			118.7		136.4			99.3			97.8
Noninterest income 1	90.6			139.0			101.2			107.7			56.5			37.1			29.2		26.2			26.8			23.4
Noninterest expense	385.5			366.0			280.9			258.6			224.4			244.8			109.5		109.4			98.0			97.9
Income before income taxes	155.0			259.6			55.0			129.1			128.0			129.2			38.4		53.2			28.1			23.3
Income taxes (benefit)	54.4			95.4			17.2			43.6			50.0			50.2			10.0		19.7			9.4			7.7
Net income (loss)	100.6			164.2			37.8			85.5			78.0			79.0			28.4		33.5			18.7			15.6
Net income (loss) applicable to noncontrolling interests	2.0			—			—			—			—			—			—		—			—			—
Net income (loss) applicable to controlling interest	$	98.6		$	164.2		$	37.8		$	85.5		$	78.0		$	79.0		$	28.4	$	33.5		$	18.7		$	15.6
AVERAGE BALANCE SHEET DATA
Total assets	$	18,628		$	17,983		$	13,846		$	13,650		$	11,578		$	11,063		$	4,929	$	4,673		$	4,277		$	4,046
Cash and due from banks	263			332			127			235			88			152			45		72			72			88
Money market investments	2,664			3,101			2,086			2,498			1,794			1,321			413		368			861			735
Total securities	2,827			1,720			295			256			434			274			466		372			854			789
Total loans	12,184			12,292			10,170			9,550			8,502			8,571			3,803		3,668			2,354			2,314
Total deposits	16,186			15,709			11,362			11,217			9,917			9,421			4,277		4,016			3,870			3,648
Shareholder’s equity:
Preferred equity	280			280			226			202			162			162			85		101			50			50
Common equity	1,654			1,556			1,953			1,875			1,405			1,368			492		447			330			324
Noncontrolling interests	13			—			—			—			—			—			—		—			—			—
Total shareholder’s equity	1,947			1,836			2,179			2,077			1,567			1,530			577		548			380			374
	Vectra						TCBW						Other						Consolidated Company
	2015			2014			2015			2014			2015			2014			2015		2014
CONDENSED INCOME STATEMENT
Net interest income	$	77.6		$	76.1		$	22.6		$	24.0		$	(49.6	)	$	(88.6	)	$	1,266.4	$	1,249.5
Provision for loan losses	1.9			(9.5		)	(1.8		)	(0.4		)	(0.1		)	(0.1		)	17.3		(109.7		)
Net interest income after provision for loan losses	75.7			85.6			24.4			24.4			(49.5		)	(88.5		)	1,249.1		1,359.2
Noninterest income 1	15.6			15.7			3.3			1.4			(70.1		)	28.7			253.1		379.2
Noninterest expense	73.0			73.2			11.6			17.1			14.8			75.6			1,197.7		1,242.6
Income (loss) before income taxes	18.3			28.1			16.1			8.7			(134.4		)	(135.4		)	304.5		495.8
Income taxes (benefit)	5.8			9.7			5.5			3.0			(54.8		)	(50.1		)	97.5		179.2
Net income (loss)	12.5			18.4			10.6			5.7			(79.6		)	(85.3		)	207.0		316.6
Net income (loss) applicable to noncontrolling interests	—			—			—			—			(2.0		)	—			—		—
Net income (loss) applicable to controlling interest	$	12.5		$	18.4		$	10.6		$	5.7		$	(77.6	)	$	(85.3	)	$	207.0	$	316.6
AVERAGE BALANCE SHEET DATA
Total assets	$	3,154		$	2,639		$	1,007		$	957		$	154		$	524		$	57,573	$	55,535
Cash and due from banks	28			45			33			28			(17		)	(14		)	639		938
Money market investments	459			70			166			122			(39		)	(168		)	8,404		8,047
Total securities	221			158			82			84			120			409			5,299		4,062
Total loans	2,385			2,305			712			710			1			4			40,111		39,414
Total deposits	2,745			2,231			863			809			(1,039		)	(1,205		)	48,181		45,846
Shareholder’s equity:
Preferred equity	25			46			3			3			173			160			1,004		1,004
Common equity	320			279			107			105			258			(98		)	6,519		5,856
Noncontrolling interests	—			—			—			—			(13		)	—			—		—
Total shareholder’s equity	345			325			110			108			418			62			7,523		6,860

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Commitments, Guarantees, And Contingent Liabilities (Schedule Of Guarantees Issued) (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Liabilities for Guarantees on Long-Duration Contracts [Line Items]
Unused Commitments to Extend Credit	$ 16,969,127	$ 16,658,757
Commercial Letters Of Credit	77,874	32,144
Total Unfunded Lending Commitments	17,953,895	17,620,278
Financial [Member]
Liabilities for Guarantees on Long-Duration Contracts [Line Items]
Standby letters of credit	701,945	745,895
Performance [Member]
Liabilities for Guarantees on Long-Duration Contracts [Line Items]
Standby letters of credit	$ 204,949	$ 183,482

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Derivative Instruments And Hedging Activities (Narrative) (Details) - USD ($)		3 Months Ended				9 Months Ended
		Sep. 30, 2015		Sep. 30, 2014		Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net		$ 17,343,000		$ (845,000)		$ 21,172,000	$ 1,681,000
Derivative Instruments in Hedges, Net Investment in Foreign Operations, Assets, Fair Value		0				0
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net		2,957,000		770,000		5,191,000	1,698,000
Fair values of derivative assets reduced (increased) by net credit valuation adjustments		3,000,000		1,700,000		3,000,000	1,700,000
Fair values of derivative liabilities reduced (increased) by net credit valuation adjustments				300,000			300,000
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Future Expected						11,600,000
Total derivatives, Notional amount		4,966,012,000				4,966,012,000		$ 3,488,773,000
Cash collateral pledged for derivative liabilities		61,000,000				61,000,000
Additional collateral that would be required to be pledge if credit rating was downgraded by one notch		1,900,000				1,900,000
Derivative Instrument, Noninterest Income (Expense)		3,446,000		3,662,000		12,269,000	(1,095,000)
Derivatives Designated As Hedging Instrument Offset To Interest Expense		$ 431,000		496,000		$ 1,364,000	1,822,000
Cash Flow Hedging [Member]
Derivative [Line Items]
Derivative Instrument, Noninterest Income (Expense)	[1]
Derivatives Designated As Hedging Instruments [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net		$ 17,343,000		(845,000)		$ 21,172,000	1,681,000
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net		2,957,000		770,000		5,191,000	1,698,000
Total derivatives, Notional amount		$ 1,387,500,000				$ 1,387,500,000		275,000,000
Derivative Instrument, Noninterest Income (Expense)
Derivatives Designated As Hedging Instrument Offset To Interest Expense		$ 431,000		496,000		$ 1,364,000	1,822,000
Derivatives Designated As Hedging Instruments [Member] | Cash Flow Hedging [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net	[1]	17,343,000		(845,000)		21,172,000	1,681,000
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	[1]	2,957,000		770,000		5,191,000	1,698,000
Derivatives Designated As Hedging Instruments [Member] | Cash Flow Hedging [Member] | Interest Rate Swaps [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net		17,343,000		(845,000)		21,172,000	1,681,000
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net		2,957,000	[1]	770,000	[1]	5,191,000	1,698,000
Total derivatives, Notional amount		1,387,500,000				1,387,500,000		275,000,000
Derivatives Designated As Hedging Instruments [Member] | Fair Value Hedging [Member] | Terminated Swaps On Long Term Debt [Member]
Derivative [Line Items]
Derivatives Designated As Hedging Instrument Offset To Interest Expense		431,000		496,000		1,364,000	1,822,000
Derivatives Not Designated As Hedging Instruments [Member]
Derivative [Line Items]
Total derivatives, Notional amount		3,578,512,000				3,578,512,000		3,213,773,000
Derivative Instrument, Noninterest Income (Expense)		3,446,000		3,662,000		12,269,000	(1,095,000)
Derivatives Not Designated As Hedging Instruments [Member] | Interest Rate Swaps [Member]
Derivative [Line Items]
Derivative Instrument, Noninterest Income (Expense)				1,000			355,000
Derivatives Not Designated As Hedging Instruments [Member] | Total Return Swap [Member]
Derivative [Line Items]
Derivative Instrument, Noninterest Income (Expense)				0			(7,894,000)
Derivatives Not Designated As Hedging Instruments [Member] | Interest Rate Swaps For Customers [Member]
Derivative [Line Items]
Total derivatives, Notional amount		3,237,694,000				3,237,694,000		2,770,052,000
Derivative Instrument, Noninterest Income (Expense)		939,000		1,419,000		5,329,000	493,000
Derivatives Not Designated As Hedging Instruments [Member] | Foreign Exchange [Member]
Derivative [Line Items]
Total derivatives, Notional amount		340,818,000				340,818,000		443,721,000
Derivative Instrument, Noninterest Income (Expense)		2,506,000		$ 2,242,000		6,938,000	$ 5,951,000
Other Liabilities [Member]
Derivative [Line Items]
Derivative Liability, Fair Value, Gross Liability		86,363,000				86,363,000		66,064,000
Other Liabilities [Member] | Derivatives Designated As Hedging Instruments [Member]
Derivative [Line Items]
Derivative Liability, Fair Value, Gross Liability		0				0		123,000
Other Liabilities [Member] | Derivatives Designated As Hedging Instruments [Member] | Cash Flow Hedging [Member] | Interest Rate Swaps [Member]
Derivative [Line Items]
Derivative Liability, Fair Value, Gross Liability		0				0		123,000
Other Liabilities [Member] | Derivatives Not Designated As Hedging Instruments [Member]
Derivative [Line Items]
Derivative Liability, Fair Value, Gross Liability		86,363,000				86,363,000		65,941,000
Other Liabilities [Member] | Derivatives Not Designated As Hedging Instruments [Member] | Interest Rate Swaps For Customers [Member]
Derivative [Line Items]
Derivative Liability, Fair Value, Gross Liability		69,991,000				69,991,000		50,669,000
Other Liabilities [Member] | Derivatives Not Designated As Hedging Instruments [Member] | Foreign Exchange [Member]
Derivative [Line Items]
Derivative Liability, Fair Value, Gross Liability		16,372,000				16,372,000		15,272,000
Other Liabilities [Member] | Derivative Financial Instruments, Liabilities [Member]
Derivative [Line Items]
Gross amounts recognized		$ 86,363,000				$ 86,363,000		$ 66,064,000

[1] Amounts recognized in OCI and reclassified from AOCI represent the effective portion of the derivative gain.

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Fair Value (Schedule Of Carrying Values And Estimated Fair Values Of Financial Instruments) (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Fair Value, Estimate Not Practicable, Financial Statement Captions [Line Items]
Held-to-maturity, fair value	$ 553,088	$ 677,196
Time deposits	2,216,206	2,406,924
Long-term debt (less fair value hedges)	944,752	1,092,282
Carrying Value [Member]
Fair Value, Estimate Not Practicable, Financial Statement Captions [Line Items]
Held-to-maturity, fair value	544,168	647,252
Loans and leases (including loans held for sale), net of allowance	39,655,805	39,591,499
Time deposits	2,216,206	2,406,924
Foreign deposits	441,560	328,391
Long-term debt (less fair value hedges)	944,613	1,090,778
Estimate of Fair Value Measurement [Member]
Fair Value, Estimate Not Practicable, Financial Statement Captions [Line Items]
Held-to-maturity, fair value	553,088	677,196
Loans and leases (including loans held for sale), net of allowance	39,414,672	39,426,498
Time deposits	2,223,094	2,408,550
Foreign deposits	441,548	328,447
Long-term debt (less fair value hedges)	$ 975,642	$ 1,159,287

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Investment Securities (Tables)

9 Months Ended

Sep. 30, 2015

Sep. 30, 2014

Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]

Summary Of Investment Securities

	September 30, 2015
(In thousands)	Amortized cost		Gross unrealized gains		Gross unrealized losses		Estimated fair value
Held-to-maturity
Municipal securities	$	544,168	$	9,976	$	1,056	$	553,088
Available-for-sale
U.S. Government agencies and corporations:
Agency securities	1,102,978		7,147		578		1,109,547
Agency guaranteed mortgage-backed securities	2,805,901		12,989		5,619		2,813,271
Small Business Administration loan-backed securities	1,815,766		14,177		10,779		1,819,164
Municipal securities	212,698		1,059		359		213,398
Other debt securities	25,485		187		2,905		22,767
	5,962,828		35,559		20,240		5,978,147
Money market mutual funds and other	21,773		91		—		21,864
	5,984,601		35,650		20,240		6,000,011
Total	$	6,528,769	$	45,626	$	21,296	$	6,553,099

	December 31, 2014
			Recognized in OCI 1						Not recognized in OCI
(In thousands)	Amortized cost		Gross unrealized gains		Gross unrealized losses		Carrying value		Gross unrealized gains		Gross unrealized losses		Estimated fair value
Held-to-maturity
Municipal securities	$	607,675	$	—	$	—	$	607,675	$	13,018	$	804	$	619,889
Asset-backed securities:
Trust preferred securities – banks and insurance	79,276		—		39,699		39,577		18,393		663		57,307
	686,951		—		39,699		647,252		$	31,411	$	1,467	677,196
Available-for-sale
U.S. Government agencies and corporations:
Agency securities	607,523		1,572		8,343		600,752						600,752
Agency guaranteed mortgage-backed securities	935,164		12,132		2,105		945,191						945,191
Small Business Administration loan-backed securities	1,544,710		16,446		8,891		1,552,265						1,552,265
Municipal securities	189,059		1,143		945		189,257						189,257
Asset-backed securities:
Trust preferred securities – banks and insurance	537,589		103		121,984		415,708						415,708
Other	5,252		207		7		5,452						5,452
	3,819,297		31,603		142,275		3,708,625						3,708,625
Money market mutual funds and other	136,591		76		1,044		135,623						135,623
	3,955,888		31,679		143,319		3,844,248						3,844,248
Total	$	4,642,839	$	31,679	$	183,018	$	4,491,500					$	4,521,444

¹  Other comprehensive income

Contractual Maturities Debt Securities

	Held-to-maturity				Available-for-sale
(In thousands)	Amortized cost		Estimated fair value		Amortized cost		Estimated fair value
Principal return in one year or less	$	88,169	$	88,714	$	822,647	$	824,744
Principal return after one year through five years	168,734		171,164		2,314,091		2,319,836
Principal return after five years through ten years	152,942		158,331		1,857,898		1,862,624
Principal return after ten years	134,323		134,879		968,192		970,943
	$	544,168	$	553,088	$	5,962,828	$	5,978,147

Summary Of Amount Of Gross Unrealized Losses For Debt Securities And Estimated Fair Value

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, 2015
	Less than 12 months				12 months or more				Total
(In thousands)	Gross unrealized losses		Estimated fair value		Gross unrealized losses		Estimated fair value		Gross unrealized losses		Estimated fair value
Held-to-maturity
Municipal securities	$	901	$	55,763	$	155	$	11,681	$	1,056	$	67,444
Available-for-sale
U.S. Government agencies and corporations:
Agency securities	65		34,737		513		137,964		578		172,701
Agency guaranteed mortgage-backed securities	5,361		1,330,271		258		15,351		5,619		1,345,622
Small Business Administration loan-backed securities	4,550		453,651		6,229		452,275		10,779		905,926
Municipal securities	305		34,703		54		4,125		359		38,828
Other debt securities	—		—		2,905		12,097		2,905		12,097
	10,281		1,853,362		9,959		621,812		20,240		2,475,174
Total	$	11,182	$	1,909,125	$	10,114	$	633,493	$	21,296	$	2,542,618

	December 31, 2014
	Less than 12 months				12 months or more				Total
(In thousands)	Gross unrealized losses		Estimated  fair  value		Gross unrealized losses		Estimated  fair  value		Gross unrealized losses		Estimated  fair  value
Held-to-maturity
Municipal securities	$	527	$	62,762	$	277	$	14,003	$	804	$	76,765
Asset-backed securities:
Trust preferred securities – banks and insurance	53		122		40,309		57,186		40,362		57,308
	580		62,884		40,586		71,189		41,166		134,073
Available-for-sale
U.S. Government agencies and corporations:
Agency securities	4,510		295,694		3,833		101,188		8,343		396,882
Agency guaranteed mortgage-backed securities	1,914		425,114		191		12,124		2,105		437,238
Small Business Administration loan-backed securities	5,869		495,817		3,022		175,523		8,891		671,340
Municipal securities	258		36,551		687		4,616		945		41,167
Asset-backed securities:
Trust preferred securities – banks and insurance	—		—		121,984		405,605		121,984		405,605
Other	7		1,607		—		—		7		1,607
	12,558		1,254,783		129,717		699,056		142,275		1,953,839
Money market mutual funds and other	1,044		71,907		—		—		1,044		71,907
	13,602		1,326,690		129,717		699,056		143,319		2,025,746
Total	$	14,182	$	1,389,574	$	170,303	$	770,245	$	184,485	$	2,159,819

Rollforward Of Total Amount Of Credit-Related OTTI

(In thousands)	Three Months Ended September 30, 2015						Nine Months Ended September 30, 2015
	HTM		AFS		Total		HTM			AFS			Total
Balance of credit-related OTTI at beginning of period	$	—	$	—	$	—	$	(9,079	)	$	(95,472	)	$	(104,551	)
Reductions for securities sold or paid off during the period	—		—		—		—			104,551			104,551
Reclassification of securities from HTM to AFS	—		—		—		9,079			(9,079		)	—
Balance of credit-related OTTI at end of period	$	—	$	—	$	—	$	—		$	—		$	—

(In thousands)	Three Months Ended September 30, 2014									Nine Months Ended September 30, 2014
	HTM			AFS			Total			HTM			AFS			Total
Balance of credit-related OTTI at beginning of period	$	(9,079	)	$	(163,914	)	$	(172,993	)	$	(9,052	)	$	(176,833	)	$	(185,885	)
Additions recognized in earnings during the period:
Additional credit-related OTTI on securities previously impaired	—			—			—			(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	)

Gains And Losses, Including OTTI, Recognized In Statement Of Income

	Three Months Ended										Nine Months Ended
	September 30, 2015					September 30, 2014					September 30, 2015					September 30, 2014
(In thousands)	Gross gains		Gross losses			Gross gains		Gross losses			Gross gains		Gross losses			Gross gains		Gross losses
Investment securities:
Held-to-maturity	$	—	$	—		$	2	$	—		$	1	$	—		$	2	$	27
Available-for-sale	6		59			5,873		20,063			8,366		147,572			83,466		62,948
Other noninterest-bearing investments	14,267		10,637			5,911		5,184			23,870		11,571			10,568		5,184
	14,273		10,696			11,786		25,247			32,237		159,143			94,036		68,159
Net gains (losses)			$	3,577				$	(13,461	)			$	(126,906	)			$	25,877
Statement of income information:
Net impairment losses on investment securities			$	—				$	—				$	—				$	(27	)
Equity securities gains, net			3,630					440					11,822					3,865
Fixed income securities gains (losses), net			(53		)			(13,901		)			(138,728		)			22,039
Net gains (losses)			$	3,577				$	(13,461	)			$	(126,906	)			$	25,877

Tax and Nontaxable Interest Income by Investment Type [Table Text Block]

(In thousands)	Three Months Ended September 30, 2015						Nine Months Ended September 30, 2015
	Taxable		Nontaxable		Total		Taxable		Nontaxable		Total
Investment securities:
Held-to-maturity	$	3,031	$	2,629	$	5,660	$	9,716	$	8,265	$	17,981
Available-for-sale	23,427		699		24,126		64,832		2,047		66,879
Trading	445		—		445		1,653		—		1,653
	$	26,903	$	3,328	$	30,231	$	76,201	$	10,312	$	86,513

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Loans And Allowance For Credit Losses (Summary Of Outstanding Loan Balances (Accruing And Nonaccruing) Categorized By Credit Quality Indicators) (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended		12 Months Ended
		Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		$ 604	$ 2,265	$ 2,475	$ 2,466	$ 93,400	$ 97,300
Financing Receivable, Recorded Investment, Current		39,794,516		39,794,516		39,794,516		$ 39,796,072
Loans held for sale		139,122		139,122		139,122		132,504
Commercial and industrial		13,035,251		13,035,251		13,035,251		13,162,955
Leasing		426,781		426,781		426,781		408,974
Owner occupied		7,141,360		7,141,360		7,141,360		7,351,548
Municipal		600,258		600,258		600,258		520,887
Total commercial		21,203,650		21,203,650		21,203,650		21,444,364
Construction and land development		2,213,465		2,213,465		2,213,465		1,986,408
Term		8,089,258		8,089,258		8,089,258		8,126,600
Loans Receivable, Gross, Commercial, Real Estate		10,302,723		10,302,723		10,302,723		10,113,008
Loans and Leases Receivable, Gross, Consumer, Home Equity		2,347,061		2,347,061		2,347,061		2,321,150
1-4 family residential		5,268,840		5,268,840		5,268,840		5,200,882
Loans and Leases Receivable, Gross, Consumer, Construction		370,015		370,015		370,015		370,542
Bankcard and other revolving plans		427,849		427,849		427,849		401,352
Other		192,985		192,985		192,985		212,360
Total consumer		8,606,750		8,606,750		8,606,750		8,506,286
Total loans		40,113,123		40,113,123		40,113,123		40,063,658
Financing Receivable Recorded Investment Thirty To Eighty Nine Days Past Due		166,927		166,927		166,927		104,491
Financing Receivable Recorded Investments, Equal To and Greater Than 90 Days Past Due		151,680		151,680		151,680		163,095
Financing Receivable, Recorded Investment, Past Due		318,607		318,607		318,607		267,586
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing		34,857		34,857		34,857		29,228
Financing Receivable, Recorded Investment, Nonaccrual Status	[1]	193,883		193,883		193,883		154,778
Consumer Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Consumer, Home Equity		2,347,061		2,347,061		2,347,061		2,321,150
1-4 family residential		5,268,840		5,268,840		5,268,840		5,200,882
Loans and Leases Receivable, Gross, Consumer, Construction		370,015		370,015		370,015		370,542
Bankcard and other revolving plans		427,849		427,849		427,849		401,352
Other		192,985		192,985		192,985		212,360
Total consumer		8,606,750		8,606,750		8,606,750		8,506,286
Total loans		8,606,750		8,606,750		8,606,750		8,506,286
Financing Receivable, Recorded Investment, Nonaccrual Status		272		272		272		254
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	$ 0	0	$ 0
Construction and land development		2,213,465		2,213,465		2,213,465		1,986,408
Term		8,089,258		8,089,258		8,089,258		8,126,600
Loans Receivable, Gross, Commercial, Real Estate		10,302,723		10,302,723		10,302,723		10,113,008
Financing Receivable, Recorded Investment, Nonaccrual Status		15,202		15,202		15,202		23,880
Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Commercial and industrial		13,035,251		13,035,251		13,035,251		13,162,955
Leasing		426,781		426,781		426,781		408,974
Owner occupied		7,141,360		7,141,360		7,141,360		7,351,548
Municipal		600,258		600,258		600,258		520,887
Total commercial		21,203,650		21,203,650		21,203,650		21,444,364
Total loans		21,203,650		21,203,650		21,203,650		21,444,364
Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans		38,284,409		38,284,409		38,284,409		38,428,158
Pass [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Consumer, Home Equity		2,333,240		2,333,240		2,333,240		2,304,352
1-4 family residential		5,214,015		5,214,015		5,214,015		5,138,660
Loans and Leases Receivable, Gross, Consumer, Construction		368,363		368,363		368,363		367,932
Bankcard and other revolving plans		425,979		425,979		425,979		399,446
Other		192,564		192,564		192,564		211,811
Total consumer		8,534,161		8,534,161		8,534,161		8,422,201
Pass [Member] | Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Construction and land development		2,166,381		2,166,381		2,166,381		1,925,685
Term		7,862,956		7,862,956		7,862,956		7,802,571
Loans Receivable, Gross, Commercial, Real Estate		10,029,337		10,029,337		10,029,337		9,728,256
Pass [Member] | Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Commercial and industrial		12,037,219		12,037,219		12,037,219		12,515,846
Leasing		400,233		400,233		400,233		399,032
Owner occupied		6,684,216		6,684,216		6,684,216		6,844,310
Municipal		599,243		599,243		599,243		518,513
Total commercial		19,720,911		19,720,911		19,720,911		20,277,701
Special Mention [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans		505,790		505,790		505,790		488,635
Special Mention [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Consumer, Home Equity		0		0		0		0
1-4 family residential		0		0		0		0
Loans and Leases Receivable, Gross, Consumer, Construction		0		0		0		0
Bankcard and other revolving plans		0		0		0		0
Other		0		0		0		0
Total consumer		0		0		0		0
Special Mention [Member] | Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Construction and land development		19,138		19,138		19,138		8,464
Term		59,689		59,689		59,689		96,347
Loans Receivable, Gross, Commercial, Real Estate		78,827		78,827		78,827		104,811
Special Mention [Member] | Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Commercial and industrial		281,696		281,696		281,696		209,215
Leasing		3,015		3,015		3,015		4,868
Owner occupied		142,204		142,204		142,204		168,423
Municipal		48		48		48		1,318
Total commercial		426,963		426,963		426,963		383,824
Total Allowance [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans		596,440		596,440		596,440		604,663
Total Allowance [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total consumer		46,474		46,474		46,474		47,140
Total Allowance [Member] | Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans Receivable, Gross, Commercial, Real Estate		122,269		122,269		122,269		145,009
Total Allowance [Member] | Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total commercial		427,697		427,697		427,697		412,514
Doubtful [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans		7,250		7,250		7,250		16,250
Doubtful [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Consumer, Home Equity		0		0		0		0
1-4 family residential		0		0		0		0
Loans and Leases Receivable, Gross, Consumer, Construction		0		0		0		0
Bankcard and other revolving plans		0		0		0		0
Other		0		0		0		0
Total consumer		0		0		0		0
Doubtful [Member] | Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Construction and land development		0		0		0		0
Term		0		0		0		4,358
Loans Receivable, Gross, Commercial, Real Estate		0		0		0		4,358
Doubtful [Member] | Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Commercial and industrial		7,250		7,250		7,250		11,892
Leasing		0		0		0		0
Owner occupied		0		0		0		0
Municipal		0		0		0		0
Total commercial		7,250		7,250		7,250		11,892
Substandard [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans		1,315,674		1,315,674		1,315,674		1,130,615
Substandard [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Consumer, Home Equity		13,821		13,821		13,821		16,798
1-4 family residential		54,825		54,825		54,825		62,222
Loans and Leases Receivable, Gross, Consumer, Construction		1,652		1,652		1,652		2,610
Bankcard and other revolving plans		1,870		1,870		1,870		1,906
Other		421		421		421		549
Total consumer		72,589		72,589		72,589		84,085
Substandard [Member] | Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Construction and land development		27,946		27,946		27,946		52,259
Term		166,613		166,613		166,613		223,324
Loans Receivable, Gross, Commercial, Real Estate		194,559		194,559		194,559		275,583
Substandard [Member] | Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Commercial and industrial		709,086		709,086		709,086		426,002
Leasing		23,533		23,533		23,533		5,074
Owner occupied		314,940		314,940		314,940		338,815
Municipal		967		967		967		1,056
Total commercial		1,048,526		1,048,526		1,048,526		770,947
Consumer Loan [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Recorded Investment, Current		8,549,111		8,549,111		8,549,111		8,442,742
Total loans		8,606,750		8,606,750		8,606,750		8,506,286
Financing Receivable Recorded Investment Thirty To Eighty Nine Days Past Due		22,853		22,853		22,853		29,663
Financing Receivable Recorded Investments, Equal To and Greater Than 90 Days Past Due		34,786		34,786		34,786		33,881
Financing Receivable, Recorded Investment, Past Due		57,639		57,639		57,639		63,544
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing		1,664		1,664		1,664		1,425
Financing Receivable, Recorded Investment, Nonaccrual Status	[1]	21,892		21,892		21,892		23,150
Consumer Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Recorded Investment, Current		192,042		192,042		192,042		211,560
Total loans		192,985		192,985		192,985		212,360
Financing Receivable Recorded Investment Thirty To Eighty Nine Days Past Due		877		877		877		644
Financing Receivable Recorded Investments, Equal To and Greater Than 90 Days Past Due		66		66		66		156
Financing Receivable, Recorded Investment, Past Due		943		943		943		800
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing		0		0		0		0
Financing Receivable, Recorded Investment, Nonaccrual Status	[1]	46		46		46		84
Term [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Recorded Investment, Current		8,039,923		8,039,923		8,039,923		8,082,940
Total loans		8,089,258		8,089,258		8,089,258		8,126,600
Financing Receivable Recorded Investment Thirty To Eighty Nine Days Past Due		15,578		15,578		15,578		14,415
Financing Receivable Recorded Investments, Equal To and Greater Than 90 Days Past Due		33,757		33,757		33,757		29,245
Financing Receivable, Recorded Investment, Past Due		49,335		49,335		49,335		43,660
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing		20,503		20,503		20,503		19,700
Financing Receivable, Recorded Investment, Nonaccrual Status	[1]	23,188		23,188		23,188		13,787
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Recorded Investment, Current		2,195,193		2,195,193		2,195,193		1,972,206
Total loans		2,213,465		2,213,465		2,213,465		1,986,408
Financing Receivable Recorded Investment Thirty To Eighty Nine Days Past Due		12,447		12,447		12,447		2,711
Financing Receivable Recorded Investments, Equal To and Greater Than 90 Days Past Due		5,825		5,825		5,825		11,491
Financing Receivable, Recorded Investment, Past Due		18,272		18,272		18,272		14,202
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing		2,296		2,296		2,296		92
Financing Receivable, Recorded Investment, Nonaccrual Status	[1]	10,914		10,914		10,914		12,481
Commercial and Industrial Sector [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Recorded Investment, Current		12,909,622		12,909,622		12,909,622		13,092,731
Total loans		13,035,251		13,035,251		13,035,251		13,162,955
Financing Receivable Recorded Investment Thirty To Eighty Nine Days Past Due		79,246		79,246		79,246		28,295
Financing Receivable Recorded Investments, Equal To and Greater Than 90 Days Past Due		46,383		46,383		46,383		41,929
Financing Receivable, Recorded Investment, Past Due		125,629		125,629		125,629		70,224
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing		4,951		4,951		4,951		4,677
Financing Receivable, Recorded Investment, Nonaccrual Status	[1]	90,584		90,584		90,584		64,385
Finance Leases Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Recorded Investment, Current		423,071		423,071		423,071		408,724
Total loans		426,781		426,781		426,781		408,974
Financing Receivable Recorded Investment Thirty To Eighty Nine Days Past Due		3,557		3,557		3,557		225
Financing Receivable Recorded Investments, Equal To and Greater Than 90 Days Past Due		153		153		153		25
Financing Receivable, Recorded Investment, Past Due		3,710		3,710		3,710		250
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing		0		0		0		0
Financing Receivable, Recorded Investment, Nonaccrual Status	[1]	55		55		55		270
Owner Occupied [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Recorded Investment, Current		7,077,386		7,077,386		7,077,386		7,275,842
Total loans		7,141,360		7,141,360		7,141,360		7,351,548
Financing Receivable Recorded Investment Thirty To Eighty Nine Days Past Due		33,198		33,198		33,198		29,182
Financing Receivable Recorded Investments, Equal To and Greater Than 90 Days Past Due		30,776		30,776		30,776		46,524
Financing Receivable, Recorded Investment, Past Due		63,974		63,974		63,974		75,706
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing		5,443		5,443		5,443		3,334
Financing Receivable, Recorded Investment, Nonaccrual Status	[1]	46,283		46,283		46,283		39,649
Municipal [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Recorded Investment, Current		600,210		600,210		600,210		520,887
Total loans		600,258		600,258		600,258		520,887
Financing Receivable Recorded Investment Thirty To Eighty Nine Days Past Due		48		48		48		0
Financing Receivable Recorded Investments, Equal To and Greater Than 90 Days Past Due		0		0		0		0
Financing Receivable, Recorded Investment, Past Due		48		48		48		0
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing		0		0		0		0
Financing Receivable, Recorded Investment, Nonaccrual Status	[1]	967		967		967		1,056
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Recorded Investment, Current		10,235,116		10,235,116		10,235,116		10,055,146
Total loans		10,302,723		10,302,723		10,302,723		10,113,008
Financing Receivable Recorded Investment Thirty To Eighty Nine Days Past Due		28,025		28,025		28,025		17,126
Financing Receivable Recorded Investments, Equal To and Greater Than 90 Days Past Due		39,582		39,582		39,582		40,736
Financing Receivable, Recorded Investment, Past Due		67,607		67,607		67,607		57,862
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing		22,799		22,799		22,799		19,792
Financing Receivable, Recorded Investment, Nonaccrual Status	[1]	34,102		34,102		34,102		26,268
Home Equity Line of Credit [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Recorded Investment, Current		2,336,740		2,336,740		2,336,740		2,309,967
Total loans		2,347,061		2,347,061		2,347,061		2,321,150
Financing Receivable Recorded Investment Thirty To Eighty Nine Days Past Due		4,694		4,694		4,694		4,503
Financing Receivable Recorded Investments, Equal To and Greater Than 90 Days Past Due		5,627		5,627		5,627		6,680
Financing Receivable, Recorded Investment, Past Due		10,321		10,321		10,321		11,183
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing		0		0		0		1
Financing Receivable, Recorded Investment, Nonaccrual Status	[1]	2,592		2,592		2,592		1,779
Commercial Loan [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Recorded Investment, Current		21,010,289		21,010,289		21,010,289		21,298,184
Total loans		21,203,650		21,203,650		21,203,650		21,444,364
Financing Receivable Recorded Investment Thirty To Eighty Nine Days Past Due		116,049		116,049		116,049		57,702
Financing Receivable Recorded Investments, Equal To and Greater Than 90 Days Past Due		77,312		77,312		77,312		88,478
Financing Receivable, Recorded Investment, Past Due		193,361		193,361		193,361		146,180
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing		10,394		10,394		10,394		8,011
Financing Receivable, Recorded Investment, Nonaccrual Status	[1]	137,889		137,889		137,889		105,360
One Through Four Family Residential [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Recorded Investment, Current		5,231,005		5,231,005		5,231,005		5,163,610
Total loans		5,268,840		5,268,840		5,268,840		5,200,882
Financing Receivable Recorded Investment Thirty To Eighty Nine Days Past Due		10,137		10,137		10,137		12,416
Financing Receivable Recorded Investments, Equal To and Greater Than 90 Days Past Due		27,698		27,698		27,698		24,856
Financing Receivable, Recorded Investment, Past Due		37,835		37,835		37,835		37,272
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing		877		877		877		318
Financing Receivable, Recorded Investment, Nonaccrual Status	[1]	18,739		18,739		18,739		20,599
Construction And Other Consumer Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Recorded Investment, Current		364,283		364,283		364,283		359,723
Total loans		370,015		370,015		370,015		370,542
Financing Receivable Recorded Investment Thirty To Eighty Nine Days Past Due		5,524		5,524		5,524		9,675
Financing Receivable Recorded Investments, Equal To and Greater Than 90 Days Past Due		208		208		208		1,144
Financing Receivable, Recorded Investment, Past Due		5,732		5,732		5,732		10,819
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing		0		0		0		160
Financing Receivable, Recorded Investment, Nonaccrual Status	[1]	$ 401		$ 401		$ 401		$ 608

[1] Represents nonaccrual loans that are not past due more than 30 days; however, full payment of principal and interest is still not expected.

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Investment Securities (Gains And Losses, Including OTTI, Recognized In Statement Of Income) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Investments [Abstract]
Investment securities, Held-to-maturity, Gross gains	$ 0	$ 2	$ 1	$ 2
Other than Temporary Impairment Losses, Investments, Held-to-maturity Securities	0	0	0	27
Investment securities, Available-for-sale, Gross gains	6	5,873	8,366	83,466
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net, Available-for-sale Securities	59	20,063	147,572	62,948
Other noninterest-bearing investments, Nonmarketable equity securities, Gross gains	14,267	5,911	23,870	10,568
Other noninterest-bearing investments, Nonmarketable equity securities, Gross losses	10,637	5,184	11,571	5,184
Total investment securities and other noninterest-bearing investments, Gross gains	14,273	11,786	32,237	94,036
Total investment securities and other noninterest-bearing investments, Gross losses	10,696	25,247	159,143	68,159
Net losses	3,577	(13,461)	(126,906)	25,877
Net impairment losses on investment securities	0	0	0	(27)
Equity securities gains (losses)	3,630	440	11,822	3,865
Fixed income securities gains (losses), net	$ (53)	$ (13,901)	$ (138,728)	$ 22,039

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Operating Segment Information (Details) $ in Thousands	3 Months Ended			6 Months Ended	9 Months Ended
	Sep. 30, 2015 USD ($) Branches Banks	Jun. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Jun. 30, 2015 USD ($)	Sep. 30, 2015 USD ($) Branches Banks	Sep. 30, 2014 USD ($)
Segment Reporting Information [Line Items]
Realized Losses on Sales of CDOs				$ 137,000
Net interest income	$ 425,377		$ 416,819		$ 1,266,427	$ 1,249,573
Provision for loan losses	18,262		(54,643)		17,334	(109,669)
Net interest income after provision for loan losses	407,115		471,462		1,249,093	1,359,242
Other noninterest income	2,461		2,627		9,076	5,854
Noninterest expense	396,149		438,536		1,197,710	1,242,626
Income before income taxes	141,779		148,997		304,439	495,850
Income Tax Expense (Benefit)	40,780		53,109		97,455	179,202
Net income	$ 100,999		95,888		$ 206,984	316,648
Number of community/regional banks operating in distinct geographical areas | Banks	7				7
Zions Bank [Member]
Segment Reporting Information [Line Items]
Net interest income	$ 145,900		146,700		$ 431,200	434,800
Provision for loan losses	(5,700)		(27,700)		(18,700)	(51,800)
Net interest income after provision for loan losses	151,600		174,400		449,900	486,600
Other noninterest income	50,400		44,800		90,600	139,000
Noninterest expense	128,800		123,400		385,500	366,000
Income before income taxes	73,200		95,800		155,000	259,600
Income Tax Expense (Benefit)	26,400		35,400		54,400	95,400
Net income	46,800		60,400		100,600	164,200
Net Income (Loss) Attributable to Noncontrolling Interest	600		0		2,000	0
Net income (loss) applicable to controlling interest	46,200		60,400		98,600	164,200
Total assets	18,437,000		18,083,000		18,628,000	17,983,000
Average cash and due from banks	241,000		322,000		263,000	332,000
Average money market investments	2,064,000		3,083,000		2,664,000	3,101,000
Average Securities	3,211,000		1,814,000		2,827,000	1,720,000
Total loans	12,200,000		12,312,000		12,184,000	12,292,000
Total deposits	15,944,000		15,827,000		16,186,000	15,709,000
Preferred equity	280,000		280,000		280,000	280,000
Common equity	1,689,000		1,578,000		1,654,000	1,556,000
Noncontrolling interests	17,000		0		13,000	0
Total shareholders' equity	1,986,000		1,858,000		1,947,000	1,836,000
Amegy [Member]
Segment Reporting Information [Line Items]
Net interest income	99,900		95,800		291,600	285,900
Provision for loan losses	31,800		(3,500)		56,900	5,900
Net interest income after provision for loan losses	68,100		99,300		234,700	280,000
Other noninterest income	33,400		39,400		101,200	107,700
Noninterest expense	90,200		79,100		280,900	258,600
Income before income taxes	11,300		59,600		55,000	129,100
Income Tax Expense (Benefit)	3,500		20,400		17,200	43,600
Net income	7,800		39,200		37,800	85,500
Net Income (Loss) Attributable to Noncontrolling Interest	0		0		0	0
Net income (loss) applicable to controlling interest	7,800		39,200		37,800	85,500
Total assets	13,901,000		13,861,000		13,846,000	13,650,000
Average cash and due from banks	101,000		172,000		127,000	235,000
Average money market investments	2,230,000		2,555,000		2,086,000	2,498,000
Average Securities	319,000		266,000		295,000	256,000
Total loans	10,078,000		9,721,000		10,170,000	9,550,000
Total deposits	11,411,000		11,382,000		11,362,000	11,217,000
Preferred equity	226,000		226,000		226,000	202,000
Common equity	1,967,000		1,903,000		1,953,000	1,875,000
Noncontrolling interests	0		0		0	0
Total shareholders' equity	$ 2,193,000		2,129,000		$ 2,179,000	2,077,000
Number of branches | Branches	77				77
California Bank Trust [Member]
Segment Reporting Information [Line Items]
Net interest income	$ 95,000		98,900		$ 289,400	311,800
Provision for loan losses	1,100		(10,100)		(6,500)	(25,100)
Net interest income after provision for loan losses	93,900		109,000		295,900	336,900
Other noninterest income	18,600		17,500		56,500	37,100
Noninterest expense	70,600		77,100		224,400	244,800
Income before income taxes	41,900		49,400		128,000	129,200
Income Tax Expense (Benefit)	16,400		19,100		50,000	50,200
Net income	25,500		30,300		78,000	79,000
Net Income (Loss) Attributable to Noncontrolling Interest	0		0		0	0
Net income (loss) applicable to controlling interest	25,500		30,300		78,000	79,000
Total assets	11,846,000		11,252,000		11,578,000	11,063,000
Average cash and due from banks	88,000		134,000		88,000	152,000
Average money market investments	1,944,000		1,577,000		1,794,000	1,321,000
Average Securities	538,000		258,000		434,000	274,000
Total loans	8,532,000		8,520,000		8,502,000	8,571,000
Total deposits	10,181,000		9,592,000		9,917,000	9,421,000
Preferred equity	162,000		162,000		162,000	162,000
Common equity	1,415,000		1,386,000		1,405,000	1,368,000
Noncontrolling interests	0		0		0	0
Total shareholders' equity	$ 1,577,000		1,548,000		$ 1,567,000	1,530,000
Number of branches | Branches	94				94
NBA [Member]
Segment Reporting Information [Line Items]
Net interest income	$ 40,400		40,300		$ 119,700	120,900
Provision for loan losses	(2,400)		(4,500)		1,000	(15,500)
Net interest income after provision for loan losses	42,800		44,800		118,700	136,400
Other noninterest income	9,900		9,600		29,200	26,200
Noninterest expense	35,800		33,200		109,500	109,400
Income before income taxes	16,900		21,200		38,400	53,200
Income Tax Expense (Benefit)	2,600		7,900		10,000	19,700
Net income	14,300		13,300		28,400	33,500
Net Income (Loss) Attributable to Noncontrolling Interest	0		0		0	0
Net income (loss) applicable to controlling interest	14,300		13,300		28,400	33,500
Total assets	5,018,000		4,710,000		4,929,000	4,673,000
Average cash and due from banks	43,000		70,000		45,000	72,000
Average money market investments	441,000		401,000		413,000	368,000
Average Securities	535,000		380,000		466,000	372,000
Total loans	3,799,000		3,660,000		3,803,000	3,668,000
Total deposits	4,360,000		4,081,000		4,277,000	4,016,000
Preferred equity	85,000		85,000		85,000	101,000
Common equity	500,000		465,000		492,000	447,000
Noncontrolling interests	0		0		0	0
Total shareholders' equity	$ 585,000		550,000		$ 577,000	548,000
Number of branches | Branches	66				66
Nevada State Bank [Member]
Segment Reporting Information [Line Items]
Net interest income	$ 27,600		28,400		$ 83,900	84,600
Provision for loan losses	(3,700)		(4,900)		(15,400)	(13,200)
Net interest income after provision for loan losses	31,300		33,300		99,300	97,800
Other noninterest income	9,400		9,600		26,800	23,400
Noninterest expense	32,300		31,800		98,000	97,900
Income before income taxes	8,400		11,100		28,100	23,300
Income Tax Expense (Benefit)	2,800		3,700		9,400	7,700
Net income	5,600		7,400		18,700	15,600
Net Income (Loss) Attributable to Noncontrolling Interest	0		0		0	0
Net income (loss) applicable to controlling interest	5,600		7,400		18,700	15,600
Total assets	4,354,000		4,074,000		4,277,000	4,046,000
Average cash and due from banks	70,000		94,000		72,000	88,000
Average money market investments	961,000		741,000		861,000	735,000
Average Securities	864,000		799,000		854,000	789,000
Total loans	2,321,000		2,318,000		2,354,000	2,314,000
Total deposits	3,951,000		3,670,000		3,870,000	3,648,000
Preferred equity	50,000		50,000		50,000	50,000
Common equity	326,000		330,000		330,000	324,000
Noncontrolling interests	0		0		0	0
Total shareholders' equity	$ 376,000		380,000		$ 380,000	374,000
Number of branches | Branches	49				49
Vectra Bank Colorado [Member]
Segment Reporting Information [Line Items]
Net interest income	$ 25,500		25,400		$ 77,600	76,100
Provision for loan losses	(1,600)		(3,200)		1,900	(9,500)
Net interest income after provision for loan losses	27,100		28,600		75,700	85,600
Other noninterest income	5,800		6,000		15,600	15,700
Noninterest expense	24,700		24,200		73,000	73,200
Income before income taxes	8,200		10,400		18,300	28,100
Income Tax Expense (Benefit)	2,700		3,600		5,800	9,700
Net income	5,500		6,800		12,500	18,400
Net Income (Loss) Attributable to Noncontrolling Interest	0		0		0	0
Net income (loss) applicable to controlling interest	5,500		6,800		12,500	18,400
Total assets	3,246,000		2,751,000		3,154,000	2,639,000
Average cash and due from banks	26,000		41,000		28,000	45,000
Average money market investments	514,000		174,000		459,000	70,000
Average Securities	247,000		152,000		221,000	158,000
Total loans	2,397,000		2,319,000		2,385,000	2,305,000
Total deposits	2,834,000		2,339,000		2,745,000	2,231,000
Preferred equity	25,000		26,000		25,000	46,000
Common equity	324,000		307,000		320,000	279,000
Noncontrolling interests	0		0		0	0
Total shareholders' equity	349,000		333,000		345,000	325,000
TCBW [Member]
Segment Reporting Information [Line Items]
Net interest income	7,500		8,300		22,600	24,000
Provision for loan losses	(1,200)		(700)		(1,800)	(400)
Net interest income after provision for loan losses	8,700		9,000		24,400	24,400
Other noninterest income	1,100		1,100		3,300	1,400
Noninterest expense	5,300		5,700		11,600	17,100
Income before income taxes	4,500		4,400		16,100	8,700
Income Tax Expense (Benefit)	1,500		1,500		5,500	3,000
Net income	3,000		2,900		10,600	5,700
Net Income (Loss) Attributable to Noncontrolling Interest	0		0		0	0
Net income (loss) applicable to controlling interest	3,000		2,900		10,600	5,700
Total assets	1,058,000		977,000		1,007,000	957,000
Average cash and due from banks	29,000		34,000		33,000	28,000
Average money market investments	227,000		140,000		166,000	122,000
Average Securities	86,000		78,000		82,000	84,000
Total loans	702,000		712,000		712,000	710,000
Total deposits	906,000		827,000		863,000	809,000
Preferred equity	3,000		3,000		3,000	3,000
Common equity	111,000		107,000		107,000	105,000
Noncontrolling interests	0		0		0	0
Total shareholders' equity	114,000		110,000		110,000	108,000
Other Segment [Member]
Segment Reporting Information [Line Items]
Net interest income	(16,400)		(27,100)		(49,600)	(88,600)
Provision for loan losses	0		(100)		(100)	(100)
Net interest income after provision for loan losses	(16,400)		(27,000)		(49,500)	(88,500)
Other noninterest income	2,200		(12,000)		(70,100)	28,700
Noninterest expense	8,400		64,000		14,800	75,600
Income before income taxes	(22,600)		(103,000)		(134,400)	(135,400)
Income Tax Expense (Benefit)	(15,100)		(38,500)		(54,800)	(50,100)
Net income	(7,500)		(64,500)		(79,600)	(85,300)
Net Income (Loss) Attributable to Noncontrolling Interest	(600)		0		(2,000)	0
Net income (loss) applicable to controlling interest	(6,900)		(64,500)		(77,600)	(85,300)
Total assets	546,000		420,000		154,000	524,000
Average cash and due from banks	(14,000)		(9,000)		(17,000)	(14,000)
Average money market investments	395,000		(178,000)		(39,000)	(168,000)
Average Securities	56,000		300,000		120,000	409,000
Total loans	(4,000)		5,000		1,000	4,000
Total deposits	(668,000)		(1,427,000)		(1,039,000)	(1,205,000)
Preferred equity	173,000		172,000		173,000	160,000
Common equity	324,000		145,000		258,000	(98,000)
Noncontrolling interests	(17,000)		0		(13,000)	0
Total shareholders' equity	480,000		317,000		418,000	62,000
Consolidated Company [Member]
Segment Reporting Information [Line Items]
Net interest income					1,266,400	1,249,500
Provision for loan losses					17,300	(109,700)
Net interest income after provision for loan losses					1,249,100	1,359,200
Other noninterest income					253,100	379,200
Noninterest expense					1,197,700	1,242,600
Income before income taxes					304,500	495,800
Income Tax Expense (Benefit)					97,500	179,200
Net income					207,000	316,600
Net Income (Loss) Attributable to Noncontrolling Interest					0	0
Net income (loss) applicable to controlling interest					207,000	316,600
Total assets					57,573,000	55,535,000
Average cash and due from banks					639,000	938,000
Average money market investments					8,404,000	8,047,000
Average Securities					5,299,000	4,062,000
Total loans					40,111,000	39,414,000
Total deposits					48,181,000	45,846,000
Preferred equity					1,004,000	1,004,000
Common equity					6,519,000	5,856,000
Noncontrolling interests					0	0
Total shareholders' equity					$ 7,523,000	$ 6,860,000
Consolidated Entities [Member]
Segment Reporting Information [Line Items]
Net interest income	425,400		416,700
Provision for loan losses	18,300		(54,700)
Net interest income after provision for loan losses	407,100		471,400
Other noninterest income	130,800		116,000
Noninterest expense	396,100		438,500
Income before income taxes	141,800		148,900
Income Tax Expense (Benefit)	40,800		53,100
Net income	101,000		95,800
Net Income (Loss) Attributable to Noncontrolling Interest	0		0
Net income (loss) applicable to controlling interest	101,000		95,800
Total assets	58,406,000		56,128,000
Average cash and due from banks	584,000		858,000
Average money market investments	8,776,000		8,493,000
Average Securities	5,856,000		4,047,000
Total loans	40,025,000		39,567,000
Total deposits	48,919,000		46,291,000
Preferred equity	1,004,000		1,004,000
Common equity	6,656,000		6,221,000
Noncontrolling interests	0		0
Total shareholders' equity	$ 7,660,000		$ 7,225,000
Utah [Member] | Zions Bank [Member]
Segment Reporting Information [Line Items]
Number of branches | Branches	99				99
Idaho [Member] | Zions Bank [Member]
Segment Reporting Information [Line Items]
Number of branches | Branches	24				24
WYOMING | Zions Bank [Member]
Segment Reporting Information [Line Items]
Number of branches | Branches	1				1
Colorado [Member] | Vectra Bank Colorado [Member]
Segment Reporting Information [Line Items]
Number of branches | Branches	36				36
New Mexico [Member] | Vectra Bank Colorado [Member]
Segment Reporting Information [Line Items]
Number of branches | Branches	1				1
WASHINGTON | TCBW [Member]
Segment Reporting Information [Line Items]
Number of branches | Branches	1				1
OREGON | TCBW [Member]
Segment Reporting Information [Line Items]
Number of branches | Branches	1				1
Other Segment [Member]
Segment Reporting Information [Line Items]
Realized Losses on Sales of CDOs		$ 73,100
Vectra Bank Colorado [Member]
Segment Reporting Information [Line Items]
Realized Losses on Sales of CDOs		600
Nevada State Bank [Member]
Segment Reporting Information [Line Items]
Realized Losses on Sales of CDOs		600
Zions Bank [Member]
Segment Reporting Information [Line Items]
Realized Losses on Sales of CDOs		$ 62,500

XML

Investment Securities (Narrative) (Details) $ in Thousands			6 Months Ended	9 Months Ended		12 Months Ended
	Sep. 30, 2015 USD ($) Securities yr	Dec. 31, 2014 USD ($) Securities	Jun. 30, 2015 USD ($)	Sep. 30, 2015 USD ($) Securities	Sep. 30, 2014 USD ($)	Dec. 31, 2014 USD ($) Securities	Mar. 31, 2015 USD ($)
Investment [Line Items]
Sale of CDO, Amortized Cost			$ 574,000
Held-to-maturity, Amortized cost	$ 544,168	$ 686,951		$ 544,168		$ 686,951
Private equity investments prohibited by Volker rule	$ 24,000			$ 24,000
Number of HTM investment securities in an unrealized loss position | Securities	146	153		146		153
Number of AFS investment securities in an unrealized loss position | Securities	460	458		460		458
Carrying value of pledged securities	$ 1,900,000	$ 1,400,000		$ 1,900,000		$ 1,400,000
Private Equity Investments	140,000			140,000
Par Value of CDO Securities Sold					$ 1,294,000
Realized Losses on Sales of CDOs			(137,000)
Held To Maturity Securities Gross Unrealized Losses		39,699
Private Equity Investments Sold Prohibited by Volcker Rule			$ 9,000	17,000	$ 22,000	8,000
Commitments for Private Equity and Other Noninterest-bearing Investments	48,000			48,000
Commitments for Private Equity or Other Non-Interest Bearing Investments Prohibited by the Volcker Rule	$ 8,000			8,000
Small Business Administration Loan-Backed Securities [Member] | Minimum [Member]
Investment [Line Items]
Investment term of maturity | yr	5
Small Business Administration Loan-Backed Securities [Member] | Maximum [Member]
Investment [Line Items]
Investment term of maturity | yr	25
Municipal Securities [Member]
Investment [Line Items]
Held-to-maturity, Amortized cost	$ 544,168	607,675		$ 544,168		$ 607,675
Held To Maturity Securities Gross Unrealized Losses		0
Asset-backed Securities [Member] | Trust Preferred Securities - Banks And Insurance [Member]
Investment [Line Items]
Held-to-maturity, Amortized cost							$ 79,276
Held To Maturity Securities Gross Unrealized Losses		$ 39,699

XML

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 ($) $ in Thousands		3 Months Ended		9 Months Ended		12 Months Ended
		Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		$ 604	$ 2,265	$ 2,475	$ 2,466	$ 93,400	$ 97,300
1-4 family residential		5,268,840		5,268,840		5,268,840		$ 5,200,882
Construction and other consumer real estate		370,015		370,015		370,015		370,542
Commercial and industrial		13,035,251		13,035,251		13,035,251		13,162,955
Home equity credit line		2,347,061		2,347,061		2,347,061		2,321,150
Bankcard and other revolving plans		427,849		427,849		427,849		401,352
Commercial [Member]
Financing Receivable, Modifications [Line Items]
Commercial and industrial		13,035,251		13,035,251		13,035,251		13,162,955
Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	0	0
Consumer Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
1-4 family residential		5,268,840		5,268,840		5,268,840		5,200,882
Construction and other consumer real estate		370,015		370,015		370,015		370,542
Home equity credit line		2,347,061		2,347,061		2,347,061		2,321,150
Bankcard and other revolving plans		427,849		427,849		427,849		401,352
Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		9	729	104	848
Owner Occupied [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	1,025	943	1,025
Commercial Loan [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		9	1,754	1,047	1,873
Term [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	833	0
Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	833	0
Home Equity Line of Credit [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	158	0	201
One Through Four Family Residential [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		595	353	595	353
Construction And Other Consumer Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	0	39
Consumer Loan [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		595	511	595	593
Accruing [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	96	0	96
Recorded investment resulting from the following modification types		178,136		178,136		178,136		245,550
Accruing [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	0	0
Recorded investment resulting from the following modification types		13,528		13,528		13,528		20,375
Accruing [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Construction and other consumer real estate		1,818		1,818		1,818		2,071
Accruing [Member] | Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	96	0	96
Commercial and industrial		39,934		39,934		39,934		50,781
Accruing [Member] | Owner Occupied [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	0	0
Recorded investment resulting from the following modification types		28,996		28,996		28,996		51,781
Accruing [Member] | Commercial Loan [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	96	0	96
Recorded investment resulting from the following modification types		68,930		68,930		68,930		102,562
Accruing [Member] | Term [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	0	0
Recorded investment resulting from the following modification types		29,903		29,903		29,903		61,240
Accruing [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	0	0
Recorded investment resulting from the following modification types		43,431		43,431		43,431		81,615
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] | One Through Four Family Residential [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	0	0
Home equity credit line		14,919		14,919		14,919		13,579
Accruing [Member] | Construction And Other Consumer Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	0	0
1-4 family residential		49,038		49,038		49,038		45,723
Accruing [Member] | Consumer Loan [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	0	0
Recorded investment resulting from the following modification types		65,775		65,775		65,775		61,373
Accruing [Member] | Interest Rate Below Market [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		10,195		10,195		10,195		33,377
Accruing [Member] | Interest Rate Below Market [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		97		97		97		0
Accruing [Member] | Interest Rate Below Market [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Construction and other consumer real estate		177		177		177		290
Accruing [Member] | Interest Rate Below Market [Member] | Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Commercial and industrial		455		455		455		2,611
Accruing [Member] | Interest Rate Below Market [Member] | Owner Occupied [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		2,034		2,034		2,034		19,981
Accruing [Member] | Interest Rate Below Market [Member] | Commercial Loan [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		2,489		2,489		2,489		22,592
Accruing [Member] | Interest Rate Below Market [Member] | Term [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		4,758		4,758		4,758		7,328
Accruing [Member] | Interest Rate Below Market [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		4,855		4,855		4,855		7,328
Accruing [Member] | Interest Rate Below Market [Member] | One Through Four Family Residential [Member]
Financing Receivable, Modifications [Line Items]
Home equity credit line		192		192		192		742
Accruing [Member] | Interest Rate Below Market [Member] | Construction And Other Consumer Real Estate [Member]
Financing Receivable, Modifications [Line Items]
1-4 family residential		2,482		2,482		2,482		2,425
Accruing [Member] | Interest Rate Below Market [Member] | Consumer Loan [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		2,851		2,851		2,851		3,457
Accruing [Member] | Maturity Or Team Extension [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		7,279		7,279		7,279		17,704
Accruing [Member] | Maturity Or Team Extension [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		0		0		0		0
Accruing [Member] | Maturity Or Team Extension [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Construction and other consumer real estate		488		488		488		422
Accruing [Member] | Maturity Or Team Extension [Member] | Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Commercial and industrial		3,906		3,906		3,906		6,509
Accruing [Member] | Maturity Or Team Extension [Member] | Owner Occupied [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		701		701		701		1,124
Accruing [Member] | Maturity Or Team Extension [Member] | Commercial Loan [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		4,607		4,607		4,607		7,633
Accruing [Member] | Maturity Or Team Extension [Member] | Term [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		766		766		766		9,027
Accruing [Member] | Maturity Or Team Extension [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		766		766		766		9,027
Accruing [Member] | Maturity Or Team Extension [Member] | One Through Four Family Residential [Member]
Financing Receivable, Modifications [Line Items]
Home equity credit line		1,060		1,060		1,060		70
Accruing [Member] | Maturity Or Team Extension [Member] | Construction And Other Consumer Real Estate [Member]
Financing Receivable, Modifications [Line Items]
1-4 family residential		358		358		358		552
Accruing [Member] | Maturity Or Team Extension [Member] | Consumer Loan [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		1,906		1,906		1,906		1,044
Accruing [Member] | Principal Forgiveness [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		19,653		19,653		19,653		19,347
Accruing [Member] | Principal Forgiveness [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		0		0		0		0
Accruing [Member] | Principal Forgiveness [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Construction and other consumer real estate		0		0		0		42
Accruing [Member] | Principal Forgiveness [Member] | Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Commercial and industrial		14		14		14		18
Accruing [Member] | Principal Forgiveness [Member] | Owner Occupied [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		938		938		938		960
Accruing [Member] | Principal Forgiveness [Member] | Commercial Loan [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		952		952		952		978
Accruing [Member] | Principal Forgiveness [Member] | Term [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		170		170		170		179
Accruing [Member] | Principal Forgiveness [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		170		170		170		179
Accruing [Member] | Principal Forgiveness [Member] | One Through Four Family Residential [Member]
Financing Receivable, Modifications [Line Items]
Home equity credit line		11,143		11,143		11,143		11,320
Accruing [Member] | Principal Forgiveness [Member] | Construction And Other Consumer Real Estate [Member]
Financing Receivable, Modifications [Line Items]
1-4 family residential		7,388		7,388		7,388		6,828
Accruing [Member] | Principal Forgiveness [Member] | Consumer Loan [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		18,531		18,531		18,531		18,190
Accruing [Member] | Payment Deferral [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		1,518		1,518		1,518		8,143
Accruing [Member] | Payment Deferral [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		0		0		0		0
Accruing [Member] | Payment Deferral [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Construction and other consumer real estate		0		0		0		90
Accruing [Member] | Payment Deferral [Member] | Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Commercial and industrial		108		108		108		3,203
Accruing [Member] | Payment Deferral [Member] | Owner Occupied [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		0		0		0		1,251
Accruing [Member] | Payment Deferral [Member] | Commercial Loan [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		108		108		108		4,454
Accruing [Member] | Payment Deferral [Member] | Term [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		975		975		975		3,153
Accruing [Member] | Payment Deferral [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		975		975		975		3,153
Accruing [Member] | Payment Deferral [Member] | One Through Four Family Residential [Member]
Financing Receivable, Modifications [Line Items]
Home equity credit line		0		0		0		0
Accruing [Member] | Payment Deferral [Member] | Construction And Other Consumer Real Estate [Member]
Financing Receivable, Modifications [Line Items]
1-4 family residential		435		435		435		446
Accruing [Member] | Payment Deferral [Member] | Consumer Loan [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		435		435		435		536
Accruing [Member] | Other Recorded Investment Resulting From Following Modification [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types	[1]	14,421		14,421		14,421		18,801
Accruing [Member] | Other Recorded Investment Resulting From Following Modification [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types	[1]	0		0		0		521
Accruing [Member] | Other Recorded Investment Resulting From Following Modification [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Construction and other consumer real estate	[1]	0		0		0		0
Accruing [Member] | Other Recorded Investment Resulting From Following Modification [Member] | Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Commercial and industrial	[1]	223		223		223		3,855
Accruing [Member] | Other Recorded Investment Resulting From Following Modification [Member] | Owner Occupied [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types	[1]	8,151		8,151		8,151		10,960
Accruing [Member] | Other Recorded Investment Resulting From Following Modification [Member] | Commercial Loan [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types	[1]	8,374		8,374		8,374		14,815
Accruing [Member] | Other Recorded Investment Resulting From Following Modification [Member] | Term [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types	[1]	2,409		2,409		2,409		2,546
Accruing [Member] | Other Recorded Investment Resulting From Following Modification [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types	[1]	2,409		2,409		2,409		3,067
Accruing [Member] | Other Recorded Investment Resulting From Following Modification [Member] | One Through Four Family Residential [Member]
Financing Receivable, Modifications [Line Items]
Home equity credit line	[1]	164		164		164		166
Accruing [Member] | Other Recorded Investment Resulting From Following Modification [Member] | Construction And Other Consumer Real Estate [Member]
Financing Receivable, Modifications [Line Items]
1-4 family residential	[1]	3,474		3,474		3,474		753
Accruing [Member] | Other Recorded Investment Resulting From Following Modification [Member] | Consumer Loan [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types	[1]	3,638		3,638		3,638		919
Accruing [Member] | Multiple Modification Types [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types	[2]	125,070		125,070		125,070		148,178
Accruing [Member] | Multiple Modification Types [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types	[2]	13,431		13,431		13,431		19,854
Accruing [Member] | Multiple Modification Types [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Construction and other consumer real estate	[2]	1,153		1,153		1,153		1,227
Accruing [Member] | Multiple Modification Types [Member] | Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Commercial and industrial	[2]	35,228		35,228		35,228		34,585
Accruing [Member] | Multiple Modification Types [Member] | Owner Occupied [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types	[2]	17,172		17,172		17,172		17,505
Accruing [Member] | Multiple Modification Types [Member] | Commercial Loan [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types	[2]	52,400		52,400		52,400		52,090
Accruing [Member] | Multiple Modification Types [Member] | Term [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types	[2]	20,825		20,825		20,825		39,007
Accruing [Member] | Multiple Modification Types [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types	[2]	34,256		34,256		34,256		58,861
Accruing [Member] | Multiple Modification Types [Member] | One Through Four Family Residential [Member]
Financing Receivable, Modifications [Line Items]
Home equity credit line	[2]	2,360		2,360		2,360		1,281
Accruing [Member] | Multiple Modification Types [Member] | Construction And Other Consumer Real Estate [Member]
Financing Receivable, Modifications [Line Items]
1-4 family residential	[2]	34,901		34,901		34,901		34,719
Accruing [Member] | Multiple Modification Types [Member] | Consumer Loan [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types	[2]	38,414		38,414		38,414		37,227
Nonaccruing [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		604	2,169	2,475	2,370
Recorded investment resulting from the following modification types		286,523		286,523		286,523		343,329
Nonaccruing [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	0	0
Recorded investment resulting from the following modification types		15,031		15,031		15,031		20,968
Nonaccruing [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		12,511		12,511		12,511		21,074
Nonaccruing [Member] | Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		9	633	104	752
Commercial and industrial		45,880		45,880		45,880		27,238
Nonaccruing [Member] | Owner Occupied [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	1,025	943	1,025
Recorded investment resulting from the following modification types		17,891		17,891		17,891		19,708
Nonaccruing [Member] | Municipal [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		967		967		967		1,056
Nonaccruing [Member] | Commercial Loan [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		9	1,658	1,047	1,777
Recorded investment resulting from the following modification types		64,738		64,738		64,738		48,002
Nonaccruing [Member] | Term [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	833	0
Recorded investment resulting from the following modification types		16,107		16,107		16,107		7,735
Nonaccruing [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	833	0
Recorded investment resulting from the following modification types		31,138		31,138		31,138		28,703
Nonaccruing [Member] | Home Equity Line of Credit [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	158	0	201
Nonaccruing [Member] | Home Equity Credit Line [Member]
Financing Receivable, Modifications [Line Items]
Home equity credit line		1,140		1,140		1,140		1,022
Nonaccruing [Member] | One Through Four Family Residential [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		595	353	595	353
1-4 family residential		11,078		11,078		11,078		19,489
Nonaccruing [Member] | Construction And Other Consumer Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	0	39
Construction and other consumer real estate		293		293		293		563
Nonaccruing [Member] | Consumer Loan [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		595	$ 511	595	$ 593
Recorded investment resulting from the following modification types		108,387		108,387		108,387		97,779
Nonaccruing [Member] | Interest Rate Below Market [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		24,481		24,481		24,481		53,842
Nonaccruing [Member] | Interest Rate Below Market [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		10,512		10,512		10,512		11,080
Nonaccruing [Member] | Interest Rate Below Market [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		8		8		8		3,378
Nonaccruing [Member] | Interest Rate Below Market [Member] | Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Commercial and industrial		90		90		90		442
Nonaccruing [Member] | Interest Rate Below Market [Member] | Owner Occupied [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		1,220		1,220		1,220		2,714
Nonaccruing [Member] | Interest Rate Below Market [Member] | Municipal [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		0		0		0		0
Nonaccruing [Member] | Interest Rate Below Market [Member] | Commercial Loan [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		1,310		1,310		1,310		3,156
Nonaccruing [Member] | Interest Rate Below Market [Member] | Term [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		2,456		2,456		2,456		2,851
Nonaccruing [Member] | Interest Rate Below Market [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		12,968		12,968		12,968		13,931
Nonaccruing [Member] | Interest Rate Below Market [Member] | Home Equity Credit Line [Member]
Financing Receivable, Modifications [Line Items]
Home equity credit line		8		8		8		0
Nonaccruing [Member] | Interest Rate Below Market [Member] | One Through Four Family Residential [Member]
Financing Receivable, Modifications [Line Items]
1-4 family residential		0		0		0		3,378
Nonaccruing [Member] | Interest Rate Below Market [Member] | Construction And Other Consumer Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Construction and other consumer real estate		0		0		0		0
Nonaccruing [Member] | Interest Rate Below Market [Member] | Consumer Loan [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		14,286		14,286		14,286		20,465
Nonaccruing [Member] | Maturity Or Team Extension [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		11,738		11,738		11,738		22,115
Nonaccruing [Member] | Maturity Or Team Extension [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		354		354		354		68
Nonaccruing [Member] | Maturity Or Team Extension [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		925		925		925		1,492
Nonaccruing [Member] | Maturity Or Team Extension [Member] | Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Commercial and industrial		471		471		471		576
Nonaccruing [Member] | Maturity Or Team Extension [Member] | Owner Occupied [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		1,742		1,742		1,742		1,219
Nonaccruing [Member] | Maturity Or Team Extension [Member] | Municipal [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		967		967		967		1,056
Nonaccruing [Member] | Maturity Or Team Extension [Member] | Commercial Loan [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		3,180		3,180		3,180		2,851
Nonaccruing [Member] | Maturity Or Team Extension [Member] | Term [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		0		0		0		0
Nonaccruing [Member] | Maturity Or Team Extension [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		354		354		354		68
Nonaccruing [Member] | Maturity Or Team Extension [Member] | Home Equity Credit Line [Member]
Financing Receivable, Modifications [Line Items]
Home equity credit line		514		514		514		0
Nonaccruing [Member] | Maturity Or Team Extension [Member] | One Through Four Family Residential [Member]
Financing Receivable, Modifications [Line Items]
1-4 family residential		268		268		268		1,029
Nonaccruing [Member] | Maturity Or Team Extension [Member] | Construction And Other Consumer Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Construction and other consumer real estate		143		143		143		463
Nonaccruing [Member] | Maturity Or Team Extension [Member] | Consumer Loan [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		4,459		4,459		4,459		4,411
Nonaccruing [Member] | Principal Forgiveness [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		23,101		23,101		23,101		21,718
Nonaccruing [Member] | Principal Forgiveness [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		0		0		0		0
Nonaccruing [Member] | Principal Forgiveness [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		2,615		2,615		2,615		2,371
Nonaccruing [Member] | Principal Forgiveness [Member] | Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Commercial and industrial		0		0		0		0
Nonaccruing [Member] | Principal Forgiveness [Member] | Owner Occupied [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		0		0		0		0
Nonaccruing [Member] | Principal Forgiveness [Member] | Municipal [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		0		0		0		0
Nonaccruing [Member] | Principal Forgiveness [Member] | Commercial Loan [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		0		0		0		0
Nonaccruing [Member] | Principal Forgiveness [Member] | Term [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		833		833		833		0
Nonaccruing [Member] | Principal Forgiveness [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		833		833		833		0
Nonaccruing [Member] | Principal Forgiveness [Member] | Home Equity Credit Line [Member]
Financing Receivable, Modifications [Line Items]
Home equity credit line		512		512		512		420
Nonaccruing [Member] | Principal Forgiveness [Member] | One Through Four Family Residential [Member]
Financing Receivable, Modifications [Line Items]
1-4 family residential		2,085		2,085		2,085		1,951
Nonaccruing [Member] | Principal Forgiveness [Member] | Construction And Other Consumer Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Construction and other consumer real estate		18		18		18		0
Nonaccruing [Member] | Principal Forgiveness [Member] | Consumer Loan [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		3,448		3,448		3,448		2,371
Nonaccruing [Member] | Payment Deferral [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		9,660		9,660		9,660		10,124
Nonaccruing [Member] | Payment Deferral [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		0		0		0		93
Nonaccruing [Member] | Payment Deferral [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		291		291		291		394
Nonaccruing [Member] | Payment Deferral [Member] | Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Commercial and industrial		2,018		2,018		2,018		611
Nonaccruing [Member] | Payment Deferral [Member] | Owner Occupied [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		5,833		5,833		5,833		883
Nonaccruing [Member] | Payment Deferral [Member] | Municipal [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		0		0		0		0
Nonaccruing [Member] | Payment Deferral [Member] | Commercial Loan [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		7,851		7,851		7,851		1,494
Nonaccruing [Member] | Payment Deferral [Member] | Term [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		0		0		0		0
Nonaccruing [Member] | Payment Deferral [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		0		0		0		93
Nonaccruing [Member] | Payment Deferral [Member] | Home Equity Credit Line [Member]
Financing Receivable, Modifications [Line Items]
Home equity credit line		58		58		58		203
Nonaccruing [Member] | Payment Deferral [Member] | One Through Four Family Residential [Member]
Financing Receivable, Modifications [Line Items]
1-4 family residential		173		173		173		191
Nonaccruing [Member] | Payment Deferral [Member] | Construction And Other Consumer Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Construction and other consumer real estate		60		60		60		0
Nonaccruing [Member] | Payment Deferral [Member] | Consumer Loan [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		8,142		8,142		8,142		1,981
Nonaccruing [Member] | Other Recorded Investment Resulting From Following Modification [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types	[1]	27,131		27,131		27,131		33,956
Nonaccruing [Member] | Other Recorded Investment Resulting From Following Modification [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types	[1]	3,197		3,197		3,197		3,300
Nonaccruing [Member] | Other Recorded Investment Resulting From Following Modification [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types	[1]	1,227		1,227		1,227		3,527
Nonaccruing [Member] | Other Recorded Investment Resulting From Following Modification [Member] | Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Commercial and industrial	[1]	5,351		5,351		5,351		5,199
Nonaccruing [Member] | Other Recorded Investment Resulting From Following Modification [Member] | Owner Occupied [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types	[1]	36		36		36		2,852
Nonaccruing [Member] | Other Recorded Investment Resulting From Following Modification [Member] | Municipal [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		0		0		0		0
Nonaccruing [Member] | Other Recorded Investment Resulting From Following Modification [Member] | Commercial Loan [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types	[1]	5,387		5,387		5,387		8,051
Nonaccruing [Member] | Other Recorded Investment Resulting From Following Modification [Member] | Term [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types	[1]	2,899		2,899		2,899		277
Nonaccruing [Member] | Other Recorded Investment Resulting From Following Modification [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types	[1]	6,096		6,096		6,096		3,577
Nonaccruing [Member] | Other Recorded Investment Resulting From Following Modification [Member] | Home Equity Credit Line [Member]
Financing Receivable, Modifications [Line Items]
Home equity credit line	[1]	0		0		0		0
Nonaccruing [Member] | Other Recorded Investment Resulting From Following Modification [Member] | One Through Four Family Residential [Member]
Financing Receivable, Modifications [Line Items]
1-4 family residential	[1]	1,227		1,227		1,227		3,527
Nonaccruing [Member] | Other Recorded Investment Resulting From Following Modification [Member] | Construction And Other Consumer Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Construction and other consumer real estate	[1]	0		0		0		0
Nonaccruing [Member] | Other Recorded Investment Resulting From Following Modification [Member] | Consumer Loan [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types	[1]	12,710		12,710		12,710		15,155
Nonaccruing [Member] | Multiple Modification Types [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types	[2]	190,412		190,412		190,412		201,574
Nonaccruing [Member] | Multiple Modification Types [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types	[2]	968		968		968		6,427
Nonaccruing [Member] | Multiple Modification Types [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types	[2]	7,445		7,445		7,445		9,912
Nonaccruing [Member] | Multiple Modification Types [Member] | Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Commercial and industrial	[2]	37,950		37,950		37,950		20,410
Nonaccruing [Member] | Multiple Modification Types [Member] | Owner Occupied [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types	[2]	9,060		9,060		9,060		12,040
Nonaccruing [Member] | Multiple Modification Types [Member] | Municipal [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types		0		0		0		0
Nonaccruing [Member] | Multiple Modification Types [Member] | Commercial Loan [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types	[2]	47,010		47,010		47,010		32,450
Nonaccruing [Member] | Multiple Modification Types [Member] | Term [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types	[2]	9,919		9,919		9,919		4,607
Nonaccruing [Member] | Multiple Modification Types [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types	[2]	10,887		10,887		10,887		11,034
Nonaccruing [Member] | Multiple Modification Types [Member] | Home Equity Credit Line [Member]
Financing Receivable, Modifications [Line Items]
Home equity credit line	[2]	48		48		48		399
Nonaccruing [Member] | Multiple Modification Types [Member] | One Through Four Family Residential [Member]
Financing Receivable, Modifications [Line Items]
1-4 family residential	[2]	7,325		7,325		7,325		9,413
Nonaccruing [Member] | Multiple Modification Types [Member] | Construction And Other Consumer Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Construction and other consumer real estate	[2]	72		72		72		100
Nonaccruing [Member] | Multiple Modification Types [Member] | Consumer Loan [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment resulting from the following modification types	[2]	$ 65,342		$ 65,342		$ 65,342		$ 53,396

[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.

XML

Fair Value (Schedule Of Assets And Liabilities Measured At Fair Value By Class On A Recurring Basis Using Level 3 Inputs) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total net gains (losses) included in, Other noninterest expense	$ 56,298	$ 66,738	$ 168,076	$ 206,353
Municipal Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of assets, Beginning balance	$ 0	10,038	4,164	10,662
Total net gains (losses) included in, Accretion of purchase discount on securities available-for-sale		9	3	27
Total net gains (losses) included in, Fixed income securities gains (losses), net		2	(344)	18
Total net gains (losses) included in, Other comprehensive income (loss)		4	687	(178)
Total net gains (losses) included in, Sales			2,651
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements		(125)	(1,859)	(601)
Fair value of assets, Ending balance	$ 0	9,928	0	9,928
Banks, Trust and Insurance, Equities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of assets, Beginning balance	$ 0	685,805	393,007	1,238,820
Total net gains (losses) included in, Accretion of purchase discount on securities available-for-sale		480	471	1,833
Total net gains (losses) included in, Fixed income securities gains (losses), net		(13,956)	(136,691)	9,009
Total net gains (losses) included in, Other noninterest expense			57,308
Total net gains (losses) included in, Other comprehensive income (loss)		45,521	141,547	146,861
Total net gains (losses) included in, Sales		155,869	440,055	702,257
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements		(36,511)	(15,587)	(99,603)
Fair value of assets, Ending balance	$ 0	525,470	0	525,470
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		$ 22,996
Total net gains (losses) included in, Accretion of purchase discount on securities available-for-sale
Total net gains (losses) included in, Fixed income securities gains (losses), net				$ 1,399
Total net gains (losses) included in, Other comprehensive income (loss)
Total net gains (losses) included in, Sales				$ 24,395
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements
Fair value of assets, Ending balance		$ 0		$ 0
Auction Rate Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of assets, Beginning balance		6,578		6,599
Total net gains (losses) included in, Accretion of purchase discount on securities available-for-sale		1		3
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		25
Total net gains (losses) included in, Sales		$ 950		950
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements
Fair value of assets, Ending balance		$ 5,714		5,714
Other Asset-Backed [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of assets, Beginning balance	$ 0	$ 28	4,761	$ 25,800
Total net gains (losses) included in, Accretion of purchase discount on securities available-for-sale
Total net gains (losses) included in, Fixed income securities gains (losses), net			(606)	$ 10,917
Total net gains (losses) included in, Other comprehensive income (loss)			(74)	(15)
Total net gains (losses) included in, Sales		$ 1	$ 4,081	36,670
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements				(5)
Fair value of assets, Ending balance	$ 0	$ 27	$ 0	27
Private Equity Investments [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of assets, Beginning balance	110,115	82,256	97,649	82,410
Total net gains (losses) included in, Dividends and other investment income	(620)	1,451	(1,179)	(1,296)
Total net gains (losses) included in, Equity securities gains, net	3,587	(3,684)	7,554	(3,100)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases	8,184	4,438	20,498	12,898
Total net gains (losses) included in, Sales	(126)	(476)	(2,634)	(1,315)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements	(945)	(100)	(1,693)	(5,712)
Fair value of assets, Ending balance	120,195	83,885	120,195	83,885
Servicing Contracts [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of liabilities, Beginning balance	13,502	11,461	12,227	8,852
Total net gains (losses) included in, Fixed income securities gains (losses), net			1,112
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Noninterest Income	(375)	139		665
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases	234	531	615	2,987
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements	(200)	(213)	(793)	(586)
Fair value of liabilities, Ending balance	13,161	11,918	13,161	11,918
Derivatives [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of liabilities, Beginning balance	$ 0	(132)	(13)	(4,303)
Derivative, Gain (Loss) on Derivative, Net				(7,894)
Total net gains (losses) included in, Other noninterest expense		$ 65		174
Total net gains (losses) included in, Purchases				11,956
Fair value of liabilities, Ending balance	$ 0	$ (67)	0	$ (67)
Fair Value, Assets Measured On Recurring Basis, And Gain (Loss) Included In Net Impairment Losses On Investment Securities			13
Estimate of Fair Value Measurement [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other Liabilities, Fair Value Disclosure					$ 13
Other Postretirement Benefits, Individual Contracts, Type of Deferred Compensation [Domain] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other Assets, Fair Value Disclosure	83,703		83,703		88,878
Other Liabilities, Fair Value Disclosure	83,703		83,703		88,878
Other Postretirement Benefits, Individual Contracts, Type of Deferred Compensation [Domain] | Estimate of Fair Value Measurement [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other Assets, Fair Value Disclosure	83,703		83,703		88,878
Other Liabilities, Fair Value Disclosure	$ 83,703		$ 83,703		$ 88,878

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Debt And Shareholders' Equity Schedule of Long-Term Debt Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Debt Instrument [Line Items]
Junior Subordinated Notes	$ 164,950	$ 168,043
Convertible Subordinated Debt	70,119	132,838
Subordinated Debt	302,102	335,798
Senior Notes	406,631	432,385
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Amount of Advances	0	22,156
Capital Lease Obligations	950	1,062
Long-term Debt, Gross	$ 944,752	$ 1,092,282

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Loans And Allowance For Credit Losses (Summary Of ALLL And Outstanding Loan Balances According To The Company's Impairment Method) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014	Dec. 31, 2013
Financing Receivable, Allowance for Credit Losses [Line Items]
Impaired Financing Receivable, Average Recorded Investment	$ 602,925	$ 829,533	$ 573,862	$ 853,216
Impaired Financing Receivable, Interest Income, Accrual Method	9,279	14,387	35,198	58,263
Allowance for loan losses: Individually evaluated for impairment	(46,103)		(46,103)			$ (41,713)
Allowance for loan losses: Collectively evaluated for impairment	549,132		549,132			560,150
Allowance for loan losses: Purchased loans with evidence of credit deterioration	1,205		1,205			2,800
Allowance for loan losses: Total	596,440	610,277	596,440	610,277	$ 609,375	604,663	$ 675,907	$ 746,291
Outstanding loan balances: Individually evaluated for impairment	494,603		494,603			521,909
Outstanding loan balances: Collectively evaluated for impairment	39,485,299		39,485,299			39,362,450
Financing Receivable Allowance For Credit Losses and Receivables Acquired With Deteriorated Credit Quality	133,221		133,221			179,299
Total loans	40,113,123		40,113,123			40,063,658
Commercial and Industrial Sector [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Impaired Financing Receivable, Average Recorded Investment	191,642	186,026	158,825	180,130
Impaired Financing Receivable, Interest Income, Accrual Method	1,314	2,335	5,525	8,819
Owner Occupied [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Impaired Financing Receivable, Average Recorded Investment	138,194	232,484	135,212	235,380
Impaired Financing Receivable, Interest Income, Accrual Method	2,752	4,514	9,706	13,774
Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses: Individually evaluated for impairment	(32,191)		(32,191)			(28,627)
Allowance for loan losses: Collectively evaluated for impairment	394,836		394,836			382,552
Allowance for loan losses: Purchased loans with evidence of credit deterioration	670		670			1,335
Allowance for loan losses: Total	427,697	412,045	427,697	412,045	437,770	412,514	442,965	469,213
Outstanding loan balances: Individually evaluated for impairment	279,928		279,928			259,207
Outstanding loan balances: Collectively evaluated for impairment	20,859,442		20,859,442			21,105,217
Financing Receivable Allowance For Credit Losses and Receivables Acquired With Deteriorated Credit Quality	64,280		64,280			79,940
Total loans	21,203,650		21,203,650			21,444,364
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Impaired Financing Receivable, Average Recorded Investment	31,506	59,735	31,920	62,404
Impaired Financing Receivable, Interest Income, Accrual Method	499	515	2,691	5,398
Allowance for loan losses: Total	122,269	153,765	122,269	153,765	125,796	145,009	187,940	216,012
Consumer Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Impaired Financing Receivable, Average Recorded Investment	36	6,284	4,109	7,333
Impaired Financing Receivable, Interest Income, Accrual Method	177	384	692	1,315
Allowance for loan losses: Individually evaluated for impairment	(11,014)		(11,014)			(9,059)
Allowance for loan losses: Collectively evaluated for impairment	35,010		35,010			37,508
Allowance for loan losses: Purchased loans with evidence of credit deterioration	450		450			573
Allowance for loan losses: Total	46,474	44,467	46,474	44,467	$ 45,809	47,140	$ 45,002	$ 61,066
Outstanding loan balances: Individually evaluated for impairment	92,612		92,612			95,267
Outstanding loan balances: Collectively evaluated for impairment	8,503,160		8,503,160			8,395,371
Financing Receivable Allowance For Credit Losses and Receivables Acquired With Deteriorated Credit Quality	10,978		10,978			15,648
Total loans	8,606,750		8,606,750			8,506,286
Commercial Loan [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Impaired Financing Receivable, Average Recorded Investment	330,814	427,308	295,044	424,853
Impaired Financing Receivable, Interest Income, Accrual Method	4,066	6,849	15,231	22,593
Term [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Impaired Financing Receivable, Average Recorded Investment	119,694	225,536	124,446	248,587
Impaired Financing Receivable, Interest Income, Accrual Method	3,705	5,670	13,383	26,118
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Impaired Financing Receivable, Average Recorded Investment	151,200	285,271	156,366	310,991
Impaired Financing Receivable, Interest Income, Accrual Method	4,204	6,185	16,074	31,516
Allowance for loan losses: Individually evaluated for impairment	(2,898)		(2,898)			(4,027)
Allowance for loan losses: Collectively evaluated for impairment	119,286		119,286			140,090
Allowance for loan losses: Purchased loans with evidence of credit deterioration	85		85			892
Allowance for loan losses: Total	122,269		122,269			145,009
Outstanding loan balances: Individually evaluated for impairment	122,063		122,063			167,435
Outstanding loan balances: Collectively evaluated for impairment	10,122,697		10,122,697			9,861,862
Financing Receivable Allowance For Credit Losses and Receivables Acquired With Deteriorated Credit Quality	57,963		57,963			83,711
Total loans	10,302,723		10,302,723			$ 10,113,008
Home Equity Line of Credit [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Impaired Financing Receivable, Average Recorded Investment	25,095	26,328	24,329	25,756
Impaired Financing Receivable, Interest Income, Accrual Method	401	369	1,206	1,139
One Through Four Family Residential [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Impaired Financing Receivable, Average Recorded Investment	90,240	81,116	91,671	81,168
Impaired Financing Receivable, Interest Income, Accrual Method	398	556	1,803	1,583
Construction And Other Consumer Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Impaired Financing Receivable, Average Recorded Investment	5,540	3,226	2,342	3,112
Impaired Financing Receivable, Interest Income, Accrual Method	32	43	91	115
Revolving Credit Facility [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Impaired Financing Receivable, Average Recorded Investment	0	0	1	3
Impaired Financing Receivable, Interest Income, Accrual Method	1	1	101	2
Consumer Loan [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Impaired Financing Receivable, Average Recorded Investment	120,911	116,954	122,452	117,372
Impaired Financing Receivable, Interest Income, Accrual Method	1,009	1,353	3,893	4,154
Municipal [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Impaired Financing Receivable, Average Recorded Investment	978	8,798	1,007	9,343
Impaired Financing Receivable, Interest Income, Accrual Method	$ 0	$ 0	$ 0	$ 0

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Basis of Presentaion

9 Months Ended

Sep. 30, 2015

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. These reclassifications did not affect net income.

Operating results for the three and nine months endedSeptember 30, 2015 and 2014 are not necessarily indicative of the results that may be expected in future periods. The consolidated balance sheet at December 31, 2014 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 2014 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; Amegy Corporation (“Amegy”) and its subsidiary, Amegy Bank, in Texas; California Bank & Trust (“CB&T”); National Bank of Arizona (“NBAZ”); Nevada State Bank (“NSB”); Vectra Bank Colorado (“Vectra”), in Colorado and New Mexico; and The Commerce Bank of Washington (“TCBW”), in Washington and Oregon. Effective April 1, 2015, The Commerce Bank of Oregon (“TCBO”) was merged into TCBW. The Parent and its subsidiary banks also own and operate certain nonbank subsidiaries that engage in financial services. On June 1, 2015, the Company announced certain efficiency and restructuring initiatives that included, among other things, the mergers of its seven subsidiary banks into Zions Bank, whose name will be changed to ZB, N.A. Regional brand names according to geographic location will continue to be used. The Company has received approvals from the Office of the Comptroller of the Currency and the Federal Deposit Insurance Corporation and expects to complete the mergers following the close of business on December 31, 2015.

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Debt And Shareholders' Equity Debt Disclosures (Details) $ in Millions	6 Months Ended
	Jun. 30, 2015 USD ($)
Debt Instrument, Redemption [Line Items]
Trust Preferred Securities, Redeemed	$ 3.1
Federal Home Loan Bank Advances, Redeemed	22.0
Debt extinguishment early tender premiums	2.4
Senior medium-term notes, optional early redemptions in 2015 [Member]
Debt Instrument, Redemption [Line Items]
Long-term Senior notes redeemed	$ 27.0

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Investment Securities Taxable and Nontaxable Interest Income by Investment Type (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Noninterest Income	$ 30,231	$ 24,377	$ 86,513	$ 76,973
Taxable [Member]
Noninterest Income	26,903	20,895	76,201	66,696
Nontaxable [Member]
Noninterest Income	3,328	3,482	10,312	10,277
Held-to-maturity Securities [Member]
Noninterest Income	5,660	6,402	17,981	19,594
Held-to-maturity Securities [Member] | Taxable [Member]
Noninterest Income	3,031	3,597	9,716	11,146
Held-to-maturity Securities [Member] | Nontaxable [Member]
Noninterest Income	2,629	2,805	8,265	8,448
Available-for-sale Securities [Member]
Noninterest Income	24,126	17,572	66,879	55,928
Available-for-sale Securities [Member] | Taxable [Member]
Noninterest Income	23,427	16,895	64,832	54,099
Available-for-sale Securities [Member] | Nontaxable [Member]
Noninterest Income	699	677	2,047	1,829
Trading Securities [Member]
Noninterest Income	445	403	1,653	1,451
Trading Securities [Member] | Taxable [Member]
Noninterest Income	445	403	1,653	1,451
Trading Securities [Member] | Nontaxable [Member]
Noninterest Income	$ 0	$ 0	$ 0	$ 0

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Debt And Shareholders' Equity Schedule of Long-term Debt Instruments (Tables)

9 Months Ended

Sep. 30, 2015

Debt Instrument [Line Items]

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

Long-term debt is summarized as follows:

(In thousands)	September 30, 2015		December 31, 2014
Junior subordinated debentures related to trust preferred securities	$	164,950	$	168,043
Convertible subordinated notes	70,119		132,838
Subordinated notes	302,102		335,798
Senior notes	406,631		432,385
FHLB advances	—		22,156
Capital lease obligations	950		1,062
Total	$	944,752	$	1,092,282

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Debt And Shareholders' Equity (Tables)

9 Months Ended

Sep. 30, 2015

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

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

Long-term debt is summarized as follows:

(In thousands)	September 30, 2015		December 31, 2014
Junior subordinated debentures related to trust preferred securities	$	164,950	$	168,043
Convertible subordinated notes	70,119		132,838
Subordinated notes	302,102		335,798
Senior notes	406,631		432,385
FHLB advances	—		22,156
Capital lease obligations	950		1,062
Total	$	944,752	$	1,092,282

Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]

	Amounts reclassified from AOCI 1												Statement of income (SI) Balance sheet (BS)
(In thousands)	Three Months Ended September 30,						Nine Months Ended September 30,
Details about AOCI components	2015			2014			2015			2014				Affected line item
Net realized gains (losses) on investment securities	$	(53	)	$	(13,901	)	$	(138,728	)	$	22,039		SI	Fixed income securities gains (losses), net
Income tax expense (benefit)	(20		)	(6,015		)	(52,883		)	1,981
	(33		)	(7,886		)	(85,845		)	20,058
Net unrealized losses on investment securities	—			—			—			(27		)	SI	Net impairment losses on investment securities
Income tax benefit	—			—			—			(10		)
	—			—			—			(17		)
Accretion of securities with noncredit-related impairment losses not expected to be sold	—			(467		)	—			(1,411		)	BS	Investment securities, held-to-maturity
Deferred income taxes	—			191			—			576			BS	Other assets
	$	(33	)	$	(8,162	)	$	(85,845	)	$	19,206
Net unrealized gains on derivative instruments	$	2,957		$	770		$	5,191		$	1,698		SI	Interest and fees on loans
Income tax expense	1,127			307			1,979			677
	$	1,830		$	463		$	3,212		$	1,021

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.

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, 2015
Balance at December 31, 2014		$	(91,921	)		$	2,226		$	(38,346	)	$	(128,041	)
Other comprehensive income before reclassifications, net of tax		15,398				13,035			—			28,433
Amounts reclassified from AOCI, net of tax		85,845				(3,212		)	—			82,633
Other comprehensive income		101,243				9,823			—			111,066
Balance at September 30, 2015		$	9,322			$	12,049		$	(38,346	)	$	(16,975	)
Income tax expense included in other comprehensive income		$	65,549			$	6,311		$	—		$	71,860
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

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Loans And Allowance For Credit Losses (Schedule Of Changes In The Accretable Yield For PCI Loans) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Loans And Allowance For Credit Losses [Abstract]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Accretion	$ (7,535)	$ (10,279)	$ (28,792)	$ (46,767)
Changes in Accretable Yield [Roll Forward]
Balance at beginning of period	46,702	60,834	45,055	77,528
Disposals and other	1,126	(38)	6,170	5,305
Balance at end of period	41,298	53,472	41,298	53,472
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Reclassifications from Nonaccretable Difference	$ 1,005	$ 2,955	$ 18,865	$ 17,406

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Loans And Allowance For Credit Losses (Narrative) (Details)		3 Months Ended		9 Months Ended		12 Months Ended
		Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Sep. 30, 2015 USD ($) mo Billing_Cycles d Payments	Sep. 30, 2014 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Dec. 31, 2014 USD ($)
Loans And Allowance For Credit Losses [Line Items]
Unfunded Lending Commitments on Troubled Debt Restructuring		$ 3,600,000		$ 3,600,000		$ 3,600,000		$ 6,100,000
Loans and Leases Receivable, Gross		40,113,123,000		40,113,123,000		40,113,123,000		40,063,658,000
Financing Receivable, Recorded Investment, Current		39,794,516,000		39,794,516,000		39,794,516,000		39,796,072,000
Certain Loans Account for as Cash Basis, Net Carrying Amounts								5,300,000
Threshold for Internal risk grades assigned to commercial and commercial real estate loans		750,000		750,000		750,000
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Provision for Loan Losses		800,000	$ 0	300,000	$ (2,500,000)
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		604,000	2,265,000	2,475,000	2,466,000	93,400,000	$ 97,300,000
Unearned income and fees, net of related costs		144,100,000		144,100,000		144,100,000		144,700,000
Owner occupied and commercial real estate loans, unamortized premiums		28,800,000		28,800,000		28,800,000		36,500,000
Land Development Loans		383,100,000		383,100,000		383,100,000		484,900,000
Loans at carrying value pledged as collateral for current and potential borrowings		22,300,000,000		22,300,000,000		22,300,000,000		22,500,000,000
Payments for Origination and Purchases of Loans Held-for-sale		442,400,000	297,800,000	1,111,000,000	894,900,000
Loans and Leases Receivable, Gain (Loss) on Sales, Net		5,000,000	4,200,000	13,900,000	11,300,000
Principle amount of loans held for sale sold		434,100,000	341,300,000	1,070,200,000	939,000,000
Servicing Retained for Loans Sold		1,200,000,000		1,200,000,000		1,200,000,000
Servicing Asset at Amortized Cost		0		$ 0		0		0
Number of days for consumer loans to be charged off | d				180
Number of days for closed-end loans to be charged off | d				120
Minimum number of days past due for nonaccrual status | d				90
Minimum number of monthly payments in arrears when reporting past due | Payments				2
Minimum number of billing cycles in arrears when reported as past due | Billing_Cycles				2
Minimum number of days unpaid when reported as past due | d				30
Threshold for nonaccrual loans for evaluation of impairment				$ 1,000,000
Minimum number of months for borrower to meet terms For TDR status | mo				6
Recorded investment in TDR loans modified with interest rates below market		190,700,000		$ 190,700,000		190,700,000		219,300,000
Total reversal amount to ALLL		600,000	800,000	3,100,000	4,400,000
Additional interest income due to increased cash flows from acquired loans		5,400,000	7,700,000	22,100,000	37,900,000
Provision for Loan and Lease Losses		18,262,000	(54,643,000)	17,334,000	(109,669,000)
Provision for Unfunded Lending Commitments		(1,428,000)	16,095,000	(313,000)	10,328,000
Other Real Estate, Foreclosed Assets, and Repossessed Assets		1,600,000		1,600,000		1,600,000
Other Real Estate, In Process of Forecloseing Assets		9,300,000		9,300,000		9,300,000
Financing Receivable Recorded Investment Thirty To Eighty Nine Days Past Due		166,927,000		166,927,000		166,927,000		104,491,000
Financing Receivable Recorded Investments, Equal To and Greater Than 90 Days Past Due		151,680,000		151,680,000		151,680,000		163,095,000
Financing Receivable, Recorded Investment, Past Due		318,607,000		318,607,000		318,607,000		267,586,000
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing		34,857,000		34,857,000		34,857,000		29,228,000
Financing Receivable, Recorded Investment, Nonaccrual Status	[1]	193,883,000		193,883,000		193,883,000		154,778,000
Commercial [Member]
Loans And Allowance For Credit Losses [Line Items]
Loans and Leases Receivable, Gross		21,203,650,000		$ 21,203,650,000		21,203,650,000		21,444,364,000
Subsequent payment default period, number of days | d				90
Provision for Loan and Lease Losses		22,417,000	(19,960,000)	$ 53,292,000	(38,274,000)
Provision for Unfunded Lending Commitments		(2,808,000)	(1,651,000)	(4,651,000)	(6,107,000)
Consumer Portfolio Segment [Member]
Loans And Allowance For Credit Losses [Line Items]
Loans and Leases Receivable, Gross		8,606,750,000		$ 8,606,750,000		8,606,750,000		8,506,286,000
Subsequent payment default period, number of days | d				60
Provision for Loan and Lease Losses		2,466,000	(496,000)	$ 2,533,000	(14,045,000)
Provision for Unfunded Lending Commitments		(87,000)	3,356,000	(7,000)	3,249,000
Financing Receivable, Recorded Investment, Nonaccrual Status		272,000		272,000		272,000		254,000
Consumer Loan [Member]
Loans And Allowance For Credit Losses [Line Items]
Loans and Leases Receivable, Gross		8,606,750,000		8,606,750,000		8,606,750,000		8,506,286,000
Financing Receivable, Recorded Investment, Current		8,549,111,000		8,549,111,000		8,549,111,000		8,442,742,000
Financing Receivable Recorded Investment Thirty To Eighty Nine Days Past Due		22,853,000		22,853,000		22,853,000		29,663,000
Financing Receivable Recorded Investments, Equal To and Greater Than 90 Days Past Due		34,786,000		34,786,000		34,786,000		33,881,000
Financing Receivable, Recorded Investment, Past Due		57,639,000		57,639,000		57,639,000		63,544,000
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing		1,664,000		1,664,000		1,664,000		1,425,000
Financing Receivable, Recorded Investment, Nonaccrual Status	[1]	21,892,000		21,892,000		21,892,000		23,150,000
Consumer Portfolio Segment [Member]
Loans And Allowance For Credit Losses [Line Items]
Loans and Leases Receivable, Gross		192,985,000		192,985,000		192,985,000		212,360,000
Financing Receivable, Recorded Investment, Current		192,042,000		192,042,000		192,042,000		211,560,000
Financing Receivable Recorded Investment Thirty To Eighty Nine Days Past Due		877,000		877,000		877,000		644,000
Financing Receivable Recorded Investments, Equal To and Greater Than 90 Days Past Due		66,000		66,000		66,000		156,000
Financing Receivable, Recorded Investment, Past Due		943,000		943,000		943,000		800,000
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing		0		0		0		0
Financing Receivable, Recorded Investment, Nonaccrual Status	[1]	46,000		46,000		46,000		84,000
Commercial and Industrial Sector [Member]
Loans And Allowance For Credit Losses [Line Items]
Loans and Leases Receivable, Gross		13,035,251,000		13,035,251,000		13,035,251,000		13,162,955,000
Financing Receivable, Recorded Investment, Current		12,909,622,000		12,909,622,000		12,909,622,000		13,092,731,000
Financing Receivable Recorded Investment Thirty To Eighty Nine Days Past Due		79,246,000		79,246,000		79,246,000		28,295,000
Financing Receivable Recorded Investments, Equal To and Greater Than 90 Days Past Due		46,383,000		46,383,000		46,383,000		41,929,000
Financing Receivable, Recorded Investment, Past Due		125,629,000		125,629,000		125,629,000		70,224,000
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing		4,951,000		4,951,000		4,951,000		4,677,000
Financing Receivable, Recorded Investment, Nonaccrual Status	[1]	90,584,000		90,584,000		90,584,000		64,385,000
Finance Leases Portfolio Segment [Member]
Loans And Allowance For Credit Losses [Line Items]
Loans and Leases Receivable, Gross		426,781,000		426,781,000		426,781,000		408,974,000
Financing Receivable, Recorded Investment, Current		423,071,000		423,071,000		423,071,000		408,724,000
Financing Receivable Recorded Investment Thirty To Eighty Nine Days Past Due		3,557,000		3,557,000		3,557,000		225,000
Financing Receivable Recorded Investments, Equal To and Greater Than 90 Days Past Due		153,000		153,000		153,000		25,000
Financing Receivable, Recorded Investment, Past Due		3,710,000		3,710,000		3,710,000		250,000
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing		0		0		0		0
Financing Receivable, Recorded Investment, Nonaccrual Status	[1]	55,000		55,000		55,000		270,000
Owner Occupied [Member]
Loans And Allowance For Credit Losses [Line Items]
Loans and Leases Receivable, Gross		7,141,360,000		7,141,360,000		7,141,360,000		7,351,548,000
Financing Receivable, Recorded Investment, Current		7,077,386,000		7,077,386,000		7,077,386,000		7,275,842,000
Financing Receivable Recorded Investment Thirty To Eighty Nine Days Past Due		33,198,000		33,198,000		33,198,000		29,182,000
Financing Receivable Recorded Investments, Equal To and Greater Than 90 Days Past Due		30,776,000		30,776,000		30,776,000		46,524,000
Financing Receivable, Recorded Investment, Past Due		63,974,000		63,974,000		63,974,000		75,706,000
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing		5,443,000		5,443,000		5,443,000		3,334,000
Financing Receivable, Recorded Investment, Nonaccrual Status	[1]	46,283,000		46,283,000		46,283,000		39,649,000
Municipal [Member]
Loans And Allowance For Credit Losses [Line Items]
Loans and Leases Receivable, Gross		600,258,000		600,258,000		600,258,000		520,887,000
Financing Receivable, Recorded Investment, Current		600,210,000		600,210,000		600,210,000		520,887,000
Financing Receivable Recorded Investment Thirty To Eighty Nine Days Past Due		48,000		48,000		48,000		0
Financing Receivable Recorded Investments, Equal To and Greater Than 90 Days Past Due		0		0		0		0
Financing Receivable, Recorded Investment, Past Due		48,000		48,000		48,000		0
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing		0		0		0		0
Financing Receivable, Recorded Investment, Nonaccrual Status	[1]	967,000		967,000		967,000		1,056,000
Commercial Loan [Member]
Loans And Allowance For Credit Losses [Line Items]
Loans and Leases Receivable, Gross		21,203,650,000		21,203,650,000		21,203,650,000		21,444,364,000
Financing Receivable, Recorded Investment, Current		21,010,289,000		21,010,289,000		21,010,289,000		21,298,184,000
Financing Receivable Recorded Investment Thirty To Eighty Nine Days Past Due		116,049,000		116,049,000		116,049,000		57,702,000
Financing Receivable Recorded Investments, Equal To and Greater Than 90 Days Past Due		77,312,000		77,312,000		77,312,000		88,478,000
Financing Receivable, Recorded Investment, Past Due		193,361,000		193,361,000		193,361,000		146,180,000
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing		10,394,000		10,394,000		10,394,000		8,011,000
Financing Receivable, Recorded Investment, Nonaccrual Status	[1]	137,889,000		137,889,000		137,889,000		105,360,000
Commercial Real Estate [Member]
Loans And Allowance For Credit Losses [Line Items]
Loans and Leases Receivable, Gross		2,213,465,000		2,213,465,000		2,213,465,000		1,986,408,000
Financing Receivable, Recorded Investment, Current		2,195,193,000		2,195,193,000		2,195,193,000		1,972,206,000
Financing Receivable Recorded Investment Thirty To Eighty Nine Days Past Due		12,447,000		12,447,000		12,447,000		2,711,000
Financing Receivable Recorded Investments, Equal To and Greater Than 90 Days Past Due		5,825,000		5,825,000		5,825,000		11,491,000
Financing Receivable, Recorded Investment, Past Due		18,272,000		18,272,000		18,272,000		14,202,000
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing		2,296,000		2,296,000		2,296,000		92,000
Financing Receivable, Recorded Investment, Nonaccrual Status	[1]	10,914,000		10,914,000		10,914,000		12,481,000
Term [Member]
Loans And Allowance For Credit Losses [Line Items]
Loans and Leases Receivable, Gross		8,089,258,000		8,089,258,000		8,089,258,000		8,126,600,000
Financing Receivable, Recorded Investment, Current		8,039,923,000		8,039,923,000		8,039,923,000		8,082,940,000
Financing Receivable Recorded Investment Thirty To Eighty Nine Days Past Due		15,578,000		15,578,000		15,578,000		14,415,000
Financing Receivable Recorded Investments, Equal To and Greater Than 90 Days Past Due		33,757,000		33,757,000		33,757,000		29,245,000
Financing Receivable, Recorded Investment, Past Due		49,335,000		49,335,000		49,335,000		43,660,000
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing		20,503,000		20,503,000		20,503,000		19,700,000
Financing Receivable, Recorded Investment, Nonaccrual Status	[1]	23,188,000		23,188,000		23,188,000		13,787,000
Commercial Real Estate [Member]
Loans And Allowance For Credit Losses [Line Items]
Loans and Leases Receivable, Gross		10,302,723,000		10,302,723,000		10,302,723,000		10,113,008,000
Financing Receivable, Recorded Investment, Current		10,235,116,000		10,235,116,000		10,235,116,000		10,055,146,000
Financing Receivable Recorded Investment Thirty To Eighty Nine Days Past Due		28,025,000		28,025,000		28,025,000		17,126,000
Financing Receivable Recorded Investments, Equal To and Greater Than 90 Days Past Due		39,582,000		39,582,000		39,582,000		40,736,000
Financing Receivable, Recorded Investment, Past Due		67,607,000		67,607,000		67,607,000		57,862,000
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing		22,799,000		22,799,000		22,799,000		19,792,000
Financing Receivable, Recorded Investment, Nonaccrual Status	[1]	34,102,000		34,102,000		34,102,000		26,268,000
Home Equity Line of Credit [Member]
Loans And Allowance For Credit Losses [Line Items]
Loans and Leases Receivable, Gross		2,347,061,000		2,347,061,000		2,347,061,000		2,321,150,000
Financing Receivable, Recorded Investment, Current		2,336,740,000		2,336,740,000		2,336,740,000		2,309,967,000
Financing Receivable Recorded Investment Thirty To Eighty Nine Days Past Due		4,694,000		4,694,000		4,694,000		4,503,000
Financing Receivable Recorded Investments, Equal To and Greater Than 90 Days Past Due		5,627,000		5,627,000		5,627,000		6,680,000
Financing Receivable, Recorded Investment, Past Due		10,321,000		10,321,000		10,321,000		11,183,000
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing		0		0		0		1,000
Financing Receivable, Recorded Investment, Nonaccrual Status	[1]	2,592,000		2,592,000		2,592,000		1,779,000
One Through Four Family Residential [Member]
Loans And Allowance For Credit Losses [Line Items]
Loans and Leases Receivable, Gross		5,268,840,000		5,268,840,000		5,268,840,000		5,200,882,000
Financing Receivable, Recorded Investment, Current		5,231,005,000		5,231,005,000		5,231,005,000		5,163,610,000
Financing Receivable Recorded Investment Thirty To Eighty Nine Days Past Due		10,137,000		10,137,000		10,137,000		12,416,000
Financing Receivable Recorded Investments, Equal To and Greater Than 90 Days Past Due		27,698,000		27,698,000		27,698,000		24,856,000
Financing Receivable, Recorded Investment, Past Due		37,835,000		37,835,000		37,835,000		37,272,000
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing		877,000		877,000		877,000		318,000
Financing Receivable, Recorded Investment, Nonaccrual Status	[1]	18,739,000		18,739,000		18,739,000		20,599,000
Construction And Other Consumer Real Estate [Member]
Loans And Allowance For Credit Losses [Line Items]
Loans and Leases Receivable, Gross		370,015,000		370,015,000		370,015,000		370,542,000
Financing Receivable, Recorded Investment, Current		364,283,000		364,283,000		364,283,000		359,723,000
Financing Receivable Recorded Investment Thirty To Eighty Nine Days Past Due		5,524,000		5,524,000		5,524,000		9,675,000
Financing Receivable Recorded Investments, Equal To and Greater Than 90 Days Past Due		208,000		208,000		208,000		1,144,000
Financing Receivable, Recorded Investment, Past Due		5,732,000		5,732,000		5,732,000		10,819,000
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing		0		0		0		160,000
Financing Receivable, Recorded Investment, Nonaccrual Status	[1]	401,000		401,000		401,000		608,000
Revolving Credit Facility [Member]
Loans And Allowance For Credit Losses [Line Items]
Loans and Leases Receivable, Gross		427,849,000		427,849,000		427,849,000		401,352,000
Financing Receivable, Recorded Investment, Current		425,041,000		425,041,000		425,041,000		397,882,000
Financing Receivable Recorded Investment Thirty To Eighty Nine Days Past Due		1,621,000		1,621,000		1,621,000		2,425,000
Financing Receivable Recorded Investments, Equal To and Greater Than 90 Days Past Due		1,187,000		1,187,000		1,187,000		1,045,000
Financing Receivable, Recorded Investment, Past Due		2,808,000		2,808,000		2,808,000		3,470,000
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing		787,000		787,000		787,000		946,000
Financing Receivable, Recorded Investment, Nonaccrual Status	[1]	114,000		114,000		114,000		80,000
Accruing [Member]
Loans And Allowance For Credit Losses [Line Items]
Financing Receivable, Modifications, Recorded Investment		178,136,000		178,136,000		178,136,000		245,550,000
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	96,000	0	96,000
Nonaccruing [Member]
Loans And Allowance For Credit Losses [Line Items]
Financing Receivable, Modifications, Recorded Investment		286,523,000		286,523,000		286,523,000		343,329,000
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		604,000	$ 2,169,000	2,475,000	$ 2,370,000
Nonaccruing [Member] | Consumer Portfolio Segment [Member]
Loans And Allowance For Credit Losses [Line Items]
Financing Receivable, Modifications, Recorded Investment		$ 12,511,000		$ 12,511,000		$ 12,511,000		$ 21,074,000

[1] Represents nonaccrual loans that are not past due more than 30 days; however, full payment of principal and interest is still not expected.

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Fair Value (Tables)

9 Months Ended

Sep. 30, 2015

Fair Value Disclosures [Abstract]

Schedule Of Assets And Liabilities Measured At Fair Value By Class On A Recurring Basis

(In thousands)	September 30, 2015
	Level 1		Level 2		Level 3		Total
ASSETS
Investment securities:
Available-for-sale:
U.S. Treasury, agencies and corporations	$	—	$	5,741,982	$	—	$	5,741,982
Municipal securities			213,398				213,398
Other debt securities			22,767				22,767
Money market mutual funds and other	18,509		3,355				21,864
	18,509		5,981,502		—		6,000,011
Trading account			73,521				73,521
Other noninterest-bearing investments:
Bank-owned life insurance			482,199				482,199
Private equity investments					120,195		120,195
Other assets:
Agriculture loan servicing and interest-only strips					13,161		13,161
Deferred compensation plan assets	83,703						83,703
Derivatives:
Interest rate related and other			18,270				18,270
Interest rate swaps for customers			66,805				66,805
Foreign currency exchange contracts	18,947						18,947
	18,947		85,075		—		104,022
	$	121,159	$	6,622,297	$	133,356	$	6,876,812
LIABILITIES
Securities sold, not yet purchased	$	29,566	$	—	$	—	$	29,566
Other liabilities:
Deferred compensation plan obligations	83,703						83,703
Derivatives:
Interest rate related and other			245				245
Interest rate swaps for customers			69,991				69,991
Foreign currency exchange contracts	16,372						16,372
	16,372		70,236		—		86,608
	$	129,641	$	70,236	$	—	$	199,877

(In thousands)	December 31, 2014
	Level 1		Level 2		Level 3		Total
ASSETS
Investment securities:
Available-for-sale:
U.S. Treasury, agencies and corporations	$	—	$	3,098,208	$	—	$	3,098,208
Municipal securities			185,093		4,164		189,257
Asset-backed securities:
Trust preferred – banks and insurance			22,701		393,007		415,708
Auction rate					4,761		4,761
Other			666		25		691
Money market mutual funds and other	105,348		30,275				135,623
	105,348		3,336,943		401,957		3,844,248
Trading account			70,601				70,601
Other noninterest-bearing investments:
Bank-owned life insurance			476,290				476,290
Private equity investments					99,865		99,865
Other assets:
Agriculture loan servicing and interest-only strips					12,227		12,227
Deferred compensation plan assets	88,878						88,878
Derivatives:
Interest rate related and other			1,508				1,508
Interest rate swaps for customers			48,287				48,287
Foreign currency exchange contracts	16,625						16,625
	16,625		49,795		—		66,420
	$	210,851	$	3,933,629	$	514,049	$	4,658,529
LIABILITIES
Securities sold, not yet purchased	$	24,230	$	—	$	—	$	24,230
Other liabilities:
Deferred compensation plan obligations	88,878						88,878
Derivatives:
Interest rate related and other			297				297
Interest rate swaps for customers			50,669				50,669
Foreign currency exchange contracts	15,272						15,272
	15,272		50,966		—		66,238
Other					13		13
	$	128,380	$	50,966	$	13	$	179,359

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, 2015
(In thousands)	Municipal securities		Trust  preferred – banks and insurance		Other		Private equity investments			Ag loan svcg and int-only strips			Derivatives and other liabilities
Balance at June 30, 2015	$	—	$	—	$	—	$	110,115		$	13,502		$	—
Net gains (losses) included in:
Statement of income:
Dividends and other investment income (loss)							(620		)
Equity securities gains, net							3,587
Other noninterest loss, net										(375		)
Purchases							8,184			234
Sales							(126		)
Redemptions and paydowns							(945		)	(200		)
Balance at September 30, 2015	$	—	$	—	$	—	$	120,195		$	13,161		$	—

	Level 3 Instruments
	Nine Months Ended September 30, 2015
(In thousands)	Municipal securities			Trust  preferred – banks and insurance			Other			Private equity investments			Ag loan svcg and int-only strips			Derivatives and other liabilities
Balance at December 31, 2014	$	4,164		$	393,007		$	4,761		$	97,649		$	12,227		$	(13	)
Net gains (losses) included in:
Statement of income:
Accretion of purchase discount on securities available-for-sale	3			471
Dividends and other investment loss										(1,179		)
Equity securities gains, net										7,554
Fixed income securities losses, net	(344		)	(136,691		)	(606		)
Other noninterest income, net													1,112
Other noninterest expense																13
Other comprehensive income (loss)	687			141,547			(74		)
Fair value of HTM securities reclassified as AFS				57,308
Purchases										20,498			615
Sales	(2,651		)	(440,055		)	(4,081		)	(2,634		)
Redemptions and paydowns	(1,859		)	(15,587		)				(1,693		)	(793		)
Balance at September 30, 2015	$	—		$	—		$	—		$	120,195		$	13,161		$	—

	Level 3 Instruments
	Three Months Ended September 30, 2014
(In thousands)	Municipal securities			Trust  preferred – banks and insurance			Trust preferred – REIT 1		Auction rate			Other asset-backed			Private equity investments			Ag loan svcg and int-only strips			Derivatives and other 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 securities			Trust  preferred – banks and insurance			Trust preferred – REIT 1			Auction rate			Other asset-backed			Private equity investments			Ag loan svcg and int-only strips			Derivatives and other 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 gains, 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	)

¹  Real Estate Investment Trust

Schedule Of Realized Gains (Losses) Using Level 3 Inputs

(In thousands)	Three Months Ended September 30,						Nine Months Ended September 30,
	2015			2014			2015			2014
Dividends and other investment income	$	(6	)	$	—		$	(2	)	$	34
Fixed income securities gains (losses), net	—			(13,917		)	(137,641		)	21,380
Equity securities losses, net	(10,637		)	—			(11,311		)	—

Schedule Of Assets With Fair Value Changes On Nonrecurring Basis

(In thousands)	Fair value at September 30, 2015								Fair value at December 31, 2014
	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
ASSETS
Private equity investments, carried at cost	$	—	$	—	$	2,974	$	2,974	$	—	$	—	$	23,454	$	23,454
Impaired loans	—		14,419		—		14,419		—		16,574		—		16,574
Other real estate owned	—		2,221		—		2,221		—		8,034		—		8,034
	$	—	$	16,640	$	2,974	$	19,614	$	—	$	24,608	$	23,454	$	48,062

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 September 30,						Nine Months Ended September 30,
	2015			2014			2015			2014
ASSETS
HTM securities adjusted for OTTI	$	—		$	—		$	—		$	(27	)
Private equity investments, carried at cost	(625		)	(339		)	(2,903		)	(471		)
Impaired loans	(7,666		)	(807		)	(12,682		)	(12,126		)
Other real estate owned	(565		)	(3,088		)	(1,883		)	(6,259		)
	$	(8,856	)	$	(4,234	)	$	(17,468	)	$	(18,883	)

Fair Value, by Balance Sheet Grouping [Table Text Block]

	September 30, 2015
(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	$	1,325,501	$	—	$	1,325,501	$	—		$	—		$	1,325,501
Derivatives (included in other assets)	103,119		—		103,119		(17,207		)	—			85,912
	$	1,428,620	$	—	$	1,428,620	$	(17,207	)	$	—		$	1,411,413
Liabilities:
Federal funds and other short-term borrowings	$	272,391	$	—	$	272,391	$	—		$	—		$	272,391
Derivatives (included in other liabilities)	86,363		—		86,363		(17,207		)	(37,109		)	32,047
	$	358,754	$	—	$	358,754	$	(17,207	)	$	(37,109	)	$	304,438

	December 31, 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	$	1,386,291	$	—	$	1,386,291	$	—		$	—		$	1,386,291
Derivatives (included in other assets)	66,420		—		66,420		(3,755		)				62,665
	$	1,452,711	$	—	$	1,452,711	$	(3,755	)	$	—		$	1,448,956
Liabilities:
Federal funds and other short-term borrowings	$	244,223	$	—	$	244,223	$	—		$	—		$	244,223
Derivatives (included in other liabilities)	66,064		—		66,064		(3,755		)	(31,968		)	30,341
	$	310,287	$	—	$	310,287	$	(3,755	)	$	(31,968	)	$	274,564

	September 30, 2015					December 31, 2014
(In thousands)	Carrying value		Estimated fair value		Level	Carrying value		Estimated fair value		Level
Financial assets:
HTM investment securities	$	544,168	$	553,088	3	$	647,252	$	677,196	3
Loans and leases (including loans held for sale), net of allowance	39,655,805		39,414,672		3	39,591,499		39,426,498		3
Financial liabilities:
Time deposits	2,216,206		2,223,094		2	2,406,924		2,408,550		2
Foreign deposits	441,560		441,548		2	328,391		328,447		2
Long-term debt (less fair value hedges)	944,613		975,642		2	1,090,778		1,159,287		2

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Commitments, Guarantees, And Contingent Liabilities (Tables)

9 Months Ended

Sep. 30, 2015

Guarantees, Commitments And Contingencies [Abstract]

Schedule Of Guarantees Issued

(In thousands)	September 30, 2015		December 31, 2014
Net unfunded commitments to extend credit 1	$	16,969,127	$	16,658,757
Standby letters of credit:
Financial	701,945		745,895
Performance	204,949		183,482
Commercial letters of credit	77,874		32,144
Total unfunded lending commitments	$	17,953,895	$	17,620,278

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Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
CASH FLOWS FROM OPERATING ACTIVITIES
Net income for the period	$ 100,999	$ 95,888	$ 206,984	$ 316,648
Adjustments to reconcile net income to net cash provided by operating activities:
Debt extinguishment cost	0	(44,422)	(2,395)	(44,422)
Provision for credit losses	19,690	(70,738)	17,647	(119,997)
Depreciation and amortization	40,281	33,860	109,563	97,414
Fixed income securities losses (gains), net	53	13,901	138,728	(22,039)
Deferred income tax expense (benefit)	(10,027)	2,960	(51,056)	22,368
Net decrease (increase) in trading securities	970	1,241	(2,950)	(20,868)
Net decrease (increase) in loans held for sale	23,314	53,820	3,263	60,774
Change in other liabilities	21,525	33,919	(14,738)	(24,598)
Change in other assets	31,178	4,739	(1,991)	(8,721)
Other, net	(15,461)	(5,745)	(21,475)	6,528
Net cash provided by operating activities	212,522	208,267	386,370	351,931
CASH FLOWS FROM INVESTING ACTIVITIES
Net decrease (increase) in money market investments	1,181,378	(955,971)	680,209	635,594
Proceeds from maturities and paydowns of investment securities held-to-maturity	26,875	20,796	87,785	58,921
Purchases of investment securities held-to-maturity	(142)	(14,964)	(24,203)	(78,228)
Proceeds from sales, maturities, and paydowns of investment securities available-for-sale	385,584	374,973	1,365,851	1,417,234
Purchases of investment securities available-for-sale	(1,728,939)	(451,212)	(3,486,509)	(1,125,036)
Net change in loans and leases	(122,868)	(126,173)	(74,974)	(738,706)
Purchases of premises and equipment	(38,747)	(26,153)	(106,115)	(138,884)
Proceeds from sales of other real estate owned	8,019	8,200	16,592	37,112
Other, net	17,610	12,799	46,935	19,796
Net cash provided by (used in) investing activities	(271,230)	(1,157,705)	(1,494,429)	87,803
CASH FLOWS FROM FINANCING ACTIVITIES
Net increase (decrease) in deposits	(16,977)	594,422	1,072,072	(96,321)
Net change in short-term funds borrowed	45,267	(66,603)	28,168	(148,550)
Repayments of long-term debt	(111,477)	(834,964)	(164,082)	(1,196,123)
Debt extinguishment costs paid	0	35,435	2,395	35,435
Proceeds from issuances of common stock	13,599	519,559	19,631	524,080
Dividends paid on common and preferred stock	(27,420)	(23,243)	(79,699)	(71,191)
Other, net	172	112	(4,884)	(3,579)
Net cash provided by (used in) financing activities	(96,836)	153,848	868,811	(1,027,119)
Net increase (decrease) in cash and due from banks	(155,544)	(795,590)	(239,248)	(587,385)
Cash and due from banks at beginning of period	758,238	1,381,262	841,942	1,173,057
Cash and due from banks at end of period	602,694	585,672	602,694	585,672
Cash paid for interest	22,162	41,138	73,219	122,807
Net cash paid for income taxes	$ 8,679	$ 58,645	$ 100,505	$ 181,301

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Retirement Plans (Tables)

9 Months Ended

Sep. 30, 2015

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 retirement benefits				Postretirement benefits						Pension benefits						Supplemental retirement benefits				Postretirement benefits
(In thousands)	Three Months Ended September 30,																Nine Months Ended September 30,
	2015			2014			2015		2014		2015			2014			2015			2014			2015		2014		2015			2014
Service cost	$	—		$	—		$	—	$	—	$	8		$	8		$	—		$	—		$	—	$	—	$	25		$	23
Interest cost	1,755			1,869			101		113		10			12			5,320			5,608			302		340		30			35
Expected return on plan assets	(3,090		)	(3,326		)											(9,270		)	(9,979		)
Amortization of prior service cost							—		13		—			—									—		38		—			—
Amortization of net actuarial (gain) loss	1,297			735			31		5		(13		)	(18		)	4,445			2,206			92		14		(40		)	(53		)
Net periodic benefit cost (credit)	$	(38	)	$	(722	)	$	132	$	131	$	5		$	2		$	495		$	(2,165	)	$	394	$	392	$	15		$	5

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Investment Securities (Summary Of Amount Of Gross Unrealized Losses For Debt Securities And Estimated Fair Value) (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2015	Dec. 31, 2014
Investment [Line Items]
Available-for-sale, Less than 12 months - Gross unrealized losses		$ 13,602
Available-for-sale, Less than 12 months - Estimated fair value		1,326,690
Available-for-sale, 12 months or more - Gross unrealized losses		129,717
Available-for-sale, 12 months or more - Estimated fair value		699,056
Available-for-sale, Total - Gross unrealized losses		143,319
Available-for-sale, Total - Estimated fair value		2,025,746
Investment Securities Gross Unrealized Losses Less Than 12 Months	$ 11,182	14,182
Investment Securities Estimated Fair Value Less Than 12 Months	1,909,125	1,389,574
Investment Securities Gross Unrealized Losses 12 Months or More	10,114	170,303
Investment Securities Estimated Fair Value 12 Months or More	633,493	770,245
Investment Securities Gross Unrealized Losses Total	21,296	184,485
Investment Securities Estimated Fair Value Total	2,542,618	2,159,819
Municipal Securities [Member]
Investment [Line Items]
Held-to-maturity, Less than 12 months - Gross unrealized losses	901	527
Held-to-maturity, Less than 12 months - Estimated fair value	55,763	62,762
Held-to-maturity, 12 months or more - Gross unrealized losses	155	277
Held-to-maturity, 12 months or more - Estimated fair value	11,681	14,003
Held-to-maturity, Total - Gross unrealized losses	1,056	804
Held-to-maturity, Total - Estimated fair value	67,444	76,765
Available-for-sale, Less than 12 months - Gross unrealized losses	305	258
Available-for-sale, Less than 12 months - Estimated fair value	34,703	36,551
Available-for-sale, 12 months or more - Gross unrealized losses	54	687
Available-for-sale, 12 months or more - Estimated fair value	4,125	4,616
Available-for-sale, Total - Gross unrealized losses	359	945
Available-for-sale, Total - Estimated fair value	38,828	41,167
Available-for-sale Securities [Member]
Investment [Line Items]
Available-for-sale, Less than 12 months - Gross unrealized losses	0
Available-for-sale, Less than 12 months - Estimated fair value	0
Agency Securities [Member]
Investment [Line Items]
Available-for-sale, Less than 12 months - Gross unrealized losses	65	4,510
Available-for-sale, Less than 12 months - Estimated fair value	34,737	295,694
Available-for-sale, 12 months or more - Gross unrealized losses	513	3,833
Available-for-sale, 12 months or more - Estimated fair value	137,964	101,188
Available-for-sale, Total - Gross unrealized losses	578	8,343
Available-for-sale, Total - Estimated fair value	172,701	396,882
Agency Guaranteed Mortgage-Backed Securities [Member]
Investment [Line Items]
Available-for-sale, Less than 12 months - Gross unrealized losses	5,361	1,914
Available-for-sale, Less than 12 months - Estimated fair value	1,330,271	425,114
Available-for-sale, 12 months or more - Gross unrealized losses	258	191
Available-for-sale, 12 months or more - Estimated fair value	15,351	12,124
Available-for-sale, Total - Gross unrealized losses	5,619	2,105
Available-for-sale, Total - Estimated fair value	1,345,622	437,238
Small Business Administration Loan-Backed Securities [Member]
Investment [Line Items]
Available-for-sale, Less than 12 months - Gross unrealized losses	4,550	5,869
Available-for-sale, Less than 12 months - Estimated fair value	453,651	495,817
Available-for-sale, 12 months or more - Gross unrealized losses	6,229	3,022
Available-for-sale, 12 months or more - Estimated fair value	452,275	175,523
Available-for-sale, Total - Gross unrealized losses	10,779	8,891
Available-for-sale, Total - Estimated fair value	905,926	671,340
Mutual Funds And Other [Member]
Investment [Line Items]
Available-for-sale, Less than 12 months - Gross unrealized losses		1,044
Available-for-sale, Less than 12 months - Estimated fair value		71,907
Available-for-sale, 12 months or more - Gross unrealized losses		0
Available-for-sale, 12 months or more - Estimated fair value		0
Available-for-sale, Total - Gross unrealized losses		1,044
Available-for-sale, Total - Estimated fair value		71,907
Held-to-maturity Securities [Member]
Investment [Line Items]
Held-to-maturity, Less than 12 months - Gross unrealized losses		580
Held-to-maturity, Less than 12 months - Estimated fair value		62,884
Held-to-maturity, 12 months or more - Gross unrealized losses		40,586
Held-to-maturity, 12 months or more - Estimated fair value		71,189
Held-to-maturity, Total - Gross unrealized losses		41,166
Held-to-maturity, Total - Estimated fair value		134,073
Available-for-sale Securities [Member]
Investment [Line Items]
Available-for-sale, Less than 12 months - Gross unrealized losses	10,281	12,558
Available-for-sale, Less than 12 months - Estimated fair value	1,853,362	1,254,783
Available-for-sale, 12 months or more - Gross unrealized losses	9,959	129,717
Available-for-sale, 12 months or more - Estimated fair value	621,812	699,056
Available-for-sale, Total - Gross unrealized losses	20,240	142,275
Available-for-sale, Total - Estimated fair value	2,475,174	1,953,839
Available-for-sale Securities [Member] | Municipal Securities [Member]
Investment [Line Items]
Available-for-sale, 12 months or more - Gross unrealized losses	2,905
Available-for-sale, 12 months or more - Estimated fair value	12,097
Available-for-sale, Total - Gross unrealized losses	2,905
Available-for-sale, Total - Estimated fair value	$ 12,097
Asset-backed Securities [Member] | Trust Preferred Securities - Banks And Insurance [Member]
Investment [Line Items]
Held-to-maturity, Less than 12 months - Gross unrealized losses		53
Held-to-maturity, Less than 12 months - Estimated fair value		122
Held-to-maturity, 12 months or more - Gross unrealized losses		40,309
Held-to-maturity, 12 months or more - Estimated fair value		57,186
Held-to-maturity, Total - Gross unrealized losses		40,362
Held-to-maturity, Total - Estimated fair value		57,308
Available-for-sale, Less than 12 months - Gross unrealized losses		0
Available-for-sale, Less than 12 months - Estimated fair value		0
Available-for-sale, 12 months or more - Gross unrealized losses		121,984
Available-for-sale, 12 months or more - Estimated fair value		405,605
Available-for-sale, Total - Gross unrealized losses		121,984
Available-for-sale, Total - Estimated fair value		405,605
Asset-backed Securities [Member] | Auction Rate Securities [Member]
Investment [Line Items]
Available-for-sale, Less than 12 months - Gross unrealized losses		7
Available-for-sale, Less than 12 months - Estimated fair value		1,607
Available-for-sale, 12 months or more - Gross unrealized losses		0
Available-for-sale, 12 months or more - Estimated fair value		0
Available-for-sale, Total - Gross unrealized losses		7
Available-for-sale, Total - Estimated fair value		$ 1,607

XML

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 ($) $ in Thousands		3 Months Ended		9 Months Ended		12 Months Ended
		Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		$ 604	$ 2,265	$ 2,475	$ 2,466	$ 93,400	$ 97,300
Loans and Leases Receivable, Gross, Consumer, Home Equity		2,347,061		2,347,061		2,347,061		$ 2,321,150
Net financial impact on interest income		490	643	1,624	1,915
Commercial [Member]
Financing Receivable, Modifications [Line Items]
Net financial impact on interest income		113	160	419	434
Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Net financial impact on interest income		(26)	(48)	(88)	(154)
Consumer Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Loans and Leases Receivable, Gross, Consumer, Home Equity		2,347,061		2,347,061		2,347,061		2,321,150
Net financial impact on interest income		267	285	822	892
Commercial and Industrial Sector [Member]
Financing Receivable, Modifications [Line Items]
Net financial impact on interest income		(67)	(36)	(189)	(34)
Owner Occupied [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	1,025	943	1,025
Net financial impact on interest income		(46)	(124)	(230)	(400)
Commercial Loan [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		9	1,754	1,047	1,873
Term [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	833	0
Net financial impact on interest income		(84)	(150)	(295)	(435)
One Through Four Family Residential [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		595	353	595	353
Net financial impact on interest income		(260)	(276)	(800)	(863)
Construction And Other Consumer Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	0	39
Net financial impact on interest income		(7)	(8)	(21)	(25)
Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	833	0
Net financial impact on interest income		110	198	383	589
Home Equity Line of Credit [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	158	0	201
Net financial impact on interest income		0	(1)	(1)	(4)
Consumer Loan [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		595	511	595	593
Nonaccruing [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		604	2,169	2,475	2,370
Nonaccruing [Member] | Owner Occupied [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	1,025	943	1,025
Nonaccruing [Member] | Commercial Loan [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		9	1,658	1,047	1,777
Nonaccruing [Member] | Term [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	833	0
Nonaccruing [Member] | One Through Four Family Residential [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		595	353	595	353
Nonaccruing [Member] | Construction And Other Consumer Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	0	39
Nonaccruing [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	833	0
Nonaccruing [Member] | Home Equity Line of Credit [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	158	0	201
Nonaccruing [Member] | Consumer Loan [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		595	511	595	593
Accruing [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	96	0	96
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		0	96	0	96
Accruing [Member] | Term [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	0	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
Loans and Leases Receivable, Gross, Consumer, Home Equity		14,919		14,919		14,919		13,579
Accruing [Member] | Construction And Other Consumer Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	0	0
Accruing [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	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
Accruing [Member] | Principal Forgiveness [Member] | One Through Four Family Residential [Member]
Financing Receivable, Modifications [Line Items]
Loans and Leases Receivable, Gross, Consumer, Home Equity		11,143		11,143		11,143		11,320
Accruing [Member] | Interest Rate Below Market [Member] | One Through Four Family Residential [Member]
Financing Receivable, Modifications [Line Items]
Loans and Leases Receivable, Gross, Consumer, Home Equity		192		192		192		742
Accruing [Member] | Maturity Or Team Extension [Member] | One Through Four Family Residential [Member]
Financing Receivable, Modifications [Line Items]
Loans and Leases Receivable, Gross, Consumer, Home Equity		1,060		1,060		1,060		70
Accruing [Member] | Payment Deferral [Member] | One Through Four Family Residential [Member]
Financing Receivable, Modifications [Line Items]
Loans and Leases Receivable, Gross, Consumer, Home Equity		0		0		0		0
Accruing [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, Home Equity	[1]	164		164		164		166
Accruing [Member] | Multiple Modification Types [Member] | One Through Four Family Residential [Member]
Financing Receivable, Modifications [Line Items]
Loans and Leases Receivable, Gross, Consumer, Home Equity	[2]	$ 2,360		$ 2,360		$ 2,360		$ 1,281

[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.

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Commitments, Guarantees, And Contingent Liabilities (Narrative) (Details) $ in Millions	Sep. 30, 2015 USD ($)
Guarantor Obligations [Line Items]
Letters of credit, accrued liability	$ 15.2
Reserve for unfunded lending commitments	12.0
Deferred commitment fees	3.2
Guarantee of trust preferred securities issued by affiliated trusts	15.0
Commitments for Private Equity and Other Noninterest-bearing Investments	48.0
Range of possible loss, minimum	0.0
Range of possible loss, maximum	$ 50.0

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Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
ASSETS
Cash and due from banks	$ 602,694	$ 841,942
Money market investments:
Interest-bearing deposits	6,558,678	7,178,097
Federal funds sold and security resell agreements	1,325,501	1,386,291
Investment securities:
Held-to-maturity, at adjusted cost (approximate fair value $553,088 and $677,196)	544,168	647,252
Available-for-sale, at fair value	6,000,011	3,844,248
Trading account, at fair value	73,521	70,601
Marketable securities, total	6,617,700	4,562,101
Loans held for sale	139,122	132,504
Loans and leases, net of unearned income and fees:
Loans and leases receivable, net of unearned income and fees	40,113,123	40,063,658
Less allowance for loan losses	596,440	604,663
Loans, net of allowance	39,516,683	39,458,995
Other noninterest-bearing investments	851,225	865,950
Premises and equipment, net	873,800	829,809
Goodwill	1,014,129	1,014,129
Core deposit and other intangibles	18,546	25,520
Other real estate owned	12,799	18,916
Other assets	880,050	894,620
Total assets	58,410,927	57,208,874
LIABILITIES AND SHAREHOLDERS' EQUITY
Noninterest-bearing demand	21,572,022	20,529,124
Interest-bearing:
Savings and money market	24,690,359	24,583,636
Time	2,216,206	2,406,924
Foreign	441,560	328,391
Total deposits	48,920,147	47,848,075
Federal funds and other short-term borrowings	272,391	244,223
Long-term debt	944,752	1,092,282
Reserve for unfunded lending commitments	81,389	81,076
Other liabilities	554,153	573,688
Total liabilities	50,772,832	49,839,344
Shareholders' equity:
Preferred stock, without par value, authorized 4,400,000 shares	1,004,159	1,004,011
Common stock, without par value; authorized 350,000,000 shares; issued and outstanding 204,278,594 and 203,014,903 shares	4,756,288	4,723,855
Retained earnings	1,894,623	1,769,705
Accumulated other comprehensive income (loss)	(16,975)	(128,041)
Total shareholders' equity	7,638,095	7,369,530
Total liabilities and shareholders' equity	$ 58,410,927	$ 57,208,874

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Loans And Allowance For Credit Losses (Summary Of Major Portfolio Segment And Specific Loan Class) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014	Dec. 31, 2013
Financing Receivable, Allowance for Credit Losses [Line Items]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Provision for Loan Losses	$ 800	$ 0	$ 300	$ (2,500)
Balance at end of period	596,440	610,277	596,440	610,277
Loans held for sale	139,122		139,122			$ 132,504
Commercial and industrial	13,035,251		13,035,251			13,162,955
Leasing	426,781		426,781			408,974
Owner occupied	7,141,360		7,141,360			7,351,548
Municipal	600,258		600,258			520,887
Construction and land development	2,213,465		2,213,465			1,986,408
Term	8,089,258		8,089,258			8,126,600
Provision for loan losses	(18,262)	54,643	(17,334)	109,669
Change In Allowance Covered By F D I C Indemnification	0	25	0	1,286
Allowance for Loan and Lease Losses, Write-offs	(42,359)	(26,471)	(93,595)	(70,666)
Allowance for Loan and Lease Losses, Recoveries of Bad Debts	11,162	15,509	68,038	45,607
Net loan and lease charge-offs	(31,197)	(10,962)	(25,557)	(25,059)
Reserve for unfunded lending commitments	81,389	79,377	81,389	79,377	$ 79,961	81,076	$ 95,472	$ 89,705
Provision for Unfunded Lending Commitments	(1,428)	16,095	(313)	10,328
Total allowance for credit losses	677,829	689,654	677,829	689,654
Consumer Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at end of period	46,474	44,467	46,474	44,467
Provision for loan losses	(2,466)	496	(2,533)	14,045
Change In Allowance Covered By F D I C Indemnification	0	0	0	96
Allowance for Loan and Lease Losses, Write-offs	(4,330)	(3,067)	(11,224)	(10,628)
Allowance for Loan and Lease Losses, Recoveries of Bad Debts	2,529	3,028	8,025	8,170
Net loan and lease charge-offs	(1,801)	(39)	(3,199)	(2,458)
Reserve for unfunded lending commitments	635	626	635	626	548	628	3,982	3,875
Provision for Unfunded Lending Commitments	(87)	3,356	(7)	3,249
Total allowance for credit losses	47,109	45,093	47,109	45,093
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at end of period	122,269	153,765	122,269	153,765
Construction and land development	2,213,465		2,213,465			1,986,408
Term	8,089,258		8,089,258			8,126,600
Provision for loan losses	6,621	34,187	38,491	57,350
Change In Allowance Covered By F D I C Indemnification	0	0	(57)	0
Allowance for Loan and Lease Losses, Write-offs	(1,068)	(3,320)	(5,637)	(14,135)
Allowance for Loan and Lease Losses, Recoveries of Bad Debts	4,162	3,332	21,331	9,238
Net loan and lease charge-offs	3,094	12	15,694	(4,897)
Reserve for unfunded lending commitments	17,172	24,299	17,172	24,299	18,639	21,517	38,689	37,485
Provision for Unfunded Lending Commitments	1,467	14,390	4,345	13,186
Total allowance for credit losses	139,441	178,064	139,441	178,064
Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at end of period	427,697	412,045	427,697	412,045
Commercial and industrial	13,035,251		13,035,251			13,162,955
Leasing	426,781		426,781			408,974
Owner occupied	7,141,360		7,141,360			7,351,548
Municipal	600,258		600,258			520,887
Provision for loan losses	(22,417)	19,960	(53,292)	38,274
Change In Allowance Covered By F D I C Indemnification	0	25	57	1,190
Allowance for Loan and Lease Losses, Write-offs	(36,961)	(20,084)	(76,734)	(45,903)
Allowance for Loan and Lease Losses, Recoveries of Bad Debts	4,471	9,149	38,682	28,199
Net loan and lease charge-offs	(32,490)	(10,935)	(38,052)	(17,704)
Reserve for unfunded lending commitments	63,582	54,452	63,582	54,452	$ 60,774	$ 58,931	$ 52,801	$ 48,345
Provision for Unfunded Lending Commitments	(2,808)	(1,651)	(4,651)	(6,107)
Total allowance for credit losses	$ 491,279	$ 466,497	$ 491,279	$ 466,497

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Consolidated Statements Of Changes In Shareholders' Equity - USD ($) $ in Thousands	Total	Preferred Stock [Member]	Common Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Stock Issued During Period, Value, New Issues	$ 515,856		$ 515,856
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock Issued During Period, Shares, New Issues			17,617,450
Balance at Dec. 31, 2013	6,464,563	$ 1,003,970	$ 4,179,024	$ 1,473,670	$ (192,101)
Balance (in shares) at Dec. 31, 2013			184,677,696
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income for the period	316,648			316,648
Other comprehensive income, net of tax	81,174				81,174
Subordinated debt converted to preferred stock	31	$ 36	$ (5)
Net activity under employee plans and related tax benefits	22,420		$ 22,420
Net activity under employee plans and related tax benefits, shares			603,345
Dividends on preferred stock	(56,841)			(56,841)
Dividends on common stock, $0.16 per share	(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)
Balance (in shares) at Sep. 30, 2014			202,898,491
Balance at Dec. 31, 2014	$ 7,369,530	1,004,011	$ 4,723,855	1,769,705	(128,041)
Balance (in shares) at Dec. 31, 2014	203,014,903		203,014,903
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income for the period	$ 206,984			206,984
Other comprehensive income, net of tax	111,066				111,066
Subordinated debt converted to preferred stock	104	148	$ (44)
Net activity under employee plans and related tax benefits	32,477		$ 32,477
Net activity under employee plans and related tax benefits, shares			1,263,691
Dividends on preferred stock	(48,567)			(48,567)
Dividends on common stock, $0.16 per share	(32,785)			(32,785)
Change in deferred compensation	(714)			(714)
Balance at Sep. 30, 2015	$ 7,638,095	$ 1,004,159	$ 4,756,288	$ 1,894,623	$ (16,975)
Balance (in shares) at Sep. 30, 2015	204,278,594		204,278,594

XML

Debt And Shareholders' Equity (Narrative) (Details) - USD ($)
$ in Thousands

3 Months Ended

6 Months Ended

9 Months Ended

Dec. 31, 2015

Sep. 30, 2015

Jun. 30, 2015

Sep. 30, 2015

Sep. 30, 2014

Dec. 31, 2014

Debt And Shareholders' Equity [Line Items]

Subordinate notes redeemed at maturity

$ 122,000

$ 109,000

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

Long-term debt is summarized as follows:

(In thousands)	September 30, 2015		December 31, 2014
Junior subordinated debentures related to trust preferred securities	$	164,950	$	168,043
Convertible subordinated notes	70,119		132,838
Subordinated notes	302,102		335,798
Senior notes	406,631		432,385
FHLB advances	—		22,156
Capital lease obligations	950		1,062
Total	$	944,752	$	1,092,282

Junior Subordinated Notes

164,950

$ 164,950

$ 168,043

Convertible Subordinated Debt

70,119

70,119

132,838

Subordinated Debt

302,102

302,102

335,798

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

28,433

$ 101,401

Stockholders' Equity [Abstract]

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

82,633

$ (20,227)

Senior Notes

406,631

406,631

432,385

Federal Home Loan Bank Advances, Redeemed

$ 22,000

Capital Lease Obligations

950

950

1,062

Long-term Debt, Gross

$ 944,752

$ 944,752

$ 1,092,282

Trust Preferred Securities, Redeemed

3,100

Preferred Stock, Tender Offer

$ 180,000

Senior medium-term notes, optional early redemptions in 2015 [Member]

Debt And Shareholders' Equity [Line Items]

Long-term Senior notes redeemed

$ 27,000

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Supplemental Cash Flow Information (Schedule Of Noncash Activities) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Other Significant Noncash Transactions [Line Items]
Loans Transfered to Other Real Estate Owned	$ 3,446	$ 8,954	$ 10,098	$ 20,197
Transfer of Portfolio Loans and Leases to Held-for-sale	22,299	9,658	(33,042)	14,739
Subordinated debt converted to preferred stock			104	31
Amortized Cost of Securities Reclassified from HTM to AFS	$ 0	$ 0	$ 79,276	$ 0

XML

Fair Value (Schedule Of Assets And Liabilities Measured At Fair Value By Class On A Recurring Basis) (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Trading account	$ 73,521	$ 70,601
Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Fair Value Disclosure	5,981,502	3,336,943
Trading account	73,521	70,601
Total assets	6,622,297	3,933,629
Securities sold, not yet purchased	0	0
Total liabilities	70,236	50,966
Level 2 [Member] | Mutual Funds And Other [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Fair Value Disclosure	3,355	30,275
Level 2 [Member] | Bank-owned life insurance [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other noninterest-bearing investments	$ 482,199	$ 476,290
Level 2 [Member] | Private Equity [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other noninterest-bearing investments
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	$ 5,741,982	$ 3,098,208
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	213,398	185,093
Level 2 [Member] | Available-for-sale Securities [Member] | Debt Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Fair Value Disclosure	22,767
Level 2 [Member] | Asset-Backed Securities [Member] | Banks, Trust and Insurance, Equities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Fair Value Disclosure		22,701
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		666
Level 2 [Member] | Derivatives [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other Assets, Fair Value Disclosure	85,075	49,795
Other Liabilities, Fair Value Disclosure	70,236	50,966
Level 2 [Member] | Derivatives [Member] | Interest Rate Related And Other [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other Assets, Fair Value Disclosure	18,270	1,508
Other Liabilities, Fair Value Disclosure	245	297
Level 2 [Member] | Derivatives [Member] | Interest Rate Swaps [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other Assets, Fair Value Disclosure	66,805	48,287
Other Liabilities, Fair Value Disclosure	69,991	50,669
Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Fair Value Disclosure	0	401,957
Total assets	133,356	514,049
Securities sold, not yet purchased	0	0
Other Liabilities, Fair Value Disclosure		13
Total liabilities	0	13
Level 3 [Member] | Private Equity [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other noninterest-bearing investments	120,195	99,865
Level 3 [Member] | Interest-Only-Strip [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other Assets, Fair Value Disclosure	13,161	12,227
Level 3 [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	$ 0	0
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		4,164
Level 3 [Member] | Asset-Backed Securities [Member] | Banks, Trust and Insurance, Equities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Fair Value Disclosure		393,007
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		4,761
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
Level 3 [Member] | Derivatives [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other Assets, Fair Value Disclosure	$ 0	0
Other Liabilities, Fair Value Disclosure	0	0
Estimate of Fair Value Measurement [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Fair Value Disclosure	6,000,011	3,844,248
Trading account	73,521	70,601
Total assets	6,876,812	4,658,529
Securities sold, not yet purchased	29,566	24,230
Other Liabilities, Fair Value Disclosure		13
Total liabilities	199,877	179,359
Estimate of Fair Value Measurement [Member] | Mutual Funds And Other [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Fair Value Disclosure	21,864	135,623
Estimate of Fair Value Measurement [Member] | Bank-owned life insurance [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other noninterest-bearing investments	482,199	476,290
Estimate of Fair Value Measurement [Member] | Private Equity [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other noninterest-bearing investments	120,195	99,865
Estimate of Fair Value Measurement [Member] | Interest-Only-Strip [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other Assets, Fair Value Disclosure	13,161	12,227
Estimate of Fair Value Measurement [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	5,741,982	3,098,208
Estimate of Fair Value Measurement [Member] | Available-for-sale Securities [Member] | Municipal Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Fair Value Disclosure	213,398	189,257
Estimate of Fair Value Measurement [Member] | Available-for-sale Securities [Member] | Debt Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Fair Value Disclosure	22,767
Estimate of Fair Value Measurement [Member] | Asset-Backed Securities [Member] | Banks, Trust and Insurance, Equities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Fair Value Disclosure		415,708
Estimate of Fair Value Measurement [Member] | Asset-Backed Securities [Member] | Auction Rate Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Fair Value Disclosure		4,761
Estimate of Fair Value Measurement [Member] | Asset-Backed Securities [Member] | Other [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Fair Value Disclosure		691
Estimate of Fair Value Measurement [Member] | Derivatives [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other Assets, Fair Value Disclosure	104,022	66,420
Other Liabilities, Fair Value Disclosure	86,608	66,238
Estimate of Fair Value Measurement [Member] | Derivatives [Member] | Interest Rate Related And Other [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other Assets, Fair Value Disclosure	18,270	1,508
Other Liabilities, Fair Value Disclosure	245	297
Estimate of Fair Value Measurement [Member] | Derivatives [Member] | Interest Rate Swaps [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other Assets, Fair Value Disclosure	66,805	48,287
Other Liabilities, Fair Value Disclosure	69,991	50,669
Estimate of Fair Value Measurement [Member] | Derivatives [Member] | Foreign Currency Exchange Contracts [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other Assets, Fair Value Disclosure	18,947	16,625
Other Liabilities, Fair Value Disclosure	16,372	15,272
Fair Value, Inputs, Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Fair Value Disclosure	18,509	105,348
Total assets	121,159	210,851
Securities sold, not yet purchased	29,566	24,230
Total liabilities	129,641	128,380
Fair Value, Inputs, Level 1 [Member] | Mutual Funds And Other [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Fair Value Disclosure	18,509	105,348
Fair Value, Inputs, 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	0	0
Fair Value, Inputs, Level 1 [Member] | Derivatives [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other Assets, Fair Value Disclosure	18,947	16,625
Other Liabilities, Fair Value Disclosure	16,372	15,272
Fair Value, Inputs, Level 1 [Member] | Derivatives [Member] | Foreign Currency Exchange Contracts [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other Assets, Fair Value Disclosure	18,947	16,625
Other Liabilities, Fair Value Disclosure	$ 16,372	$ 15,272

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Basis of Presentaion Organization and Presentation (Policies)

9 Months Ended

Sep. 30, 2015

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. These reclassifications did not affect net income.

Operating results for the three and nine months endedSeptember 30, 2015 and 2014 are not necessarily indicative of the results that may be expected in future periods. The consolidated balance sheet at December 31, 2014 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 2014 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; Amegy Corporation (“Amegy”) and its subsidiary, Amegy Bank, in Texas; California Bank & Trust (“CB&T”); National Bank of Arizona (“NBAZ”); Nevada State Bank (“NSB”); Vectra Bank Colorado (“Vectra”), in Colorado and New Mexico; and The Commerce Bank of Washington (“TCBW”), in Washington and Oregon. Effective April 1, 2015, The Commerce Bank of Oregon (“TCBO”) was merged into TCBW. The Parent and its subsidiary banks also own and operate certain nonbank subsidiaries that engage in financial services. On June 1, 2015, the Company announced certain efficiency and restructuring initiatives that included, among other things, the mergers of its seven subsidiary banks into Zions Bank, whose name will be changed to ZB, N.A. Regional brand names according to geographic location will continue to be used. The Company has received approvals from the Office of the Comptroller of the Currency and the Federal Deposit Insurance Corporation and expects to complete the mergers following the close of business on December 31, 2015.

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Offsetting Assets and Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Federal Funds Sold and Securities Borrowed or Purchased under Agreements to Resell [Member] | Assets [Member]
Offsetting Assets [Line Items]
Net amount	$ 1,325,501	$ 1,386,291
Gross amounts recognized	1,325,501	1,386,291
Gross amounts offset in the balance sheet	0	0
Net amounts presented in the balance sheet	1,325,501	1,386,291
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	85,912	62,665
Gross amounts recognized	103,119	66,420
Gross amounts offset in the balance sheet	0	0
Net amounts presented in the balance sheet	103,119	66,420
Gross amounts not offset in the balance sheet	(17,207)	$ (3,755)
Cash Collateral Received/Pledged	0
Assets, Total [Member] | Assets [Member]
Offsetting Assets [Line Items]
Net amount	1,411,413	$ 1,448,956
Gross amounts recognized	1,428,620	1,452,711
Gross amounts offset in the balance sheet	0	0
Net amounts presented in the balance sheet	1,428,620	1,452,711
Gross amounts not offset in the balance sheet	(17,207)	(3,755)
Cash Collateral Received/Pledged	0	0
Federal Funds Purchased and Securities Sold under Agreements to Repurchase [Member] | Other Liabilities [Member]
Offsetting Assets [Line Items]
Net amount	272,391	244,223
Gross amounts recognized	272,391	244,223
Gross amounts offset in the balance sheet	0	0
Net amounts presented in the balance sheet	272,391	244,223
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	32,047	30,341
Gross amounts recognized	86,363	66,064
Gross amounts offset in the balance sheet	0	0
Net amounts presented in the balance sheet	86,363	66,064
Gross amounts not offset in the balance sheet	(17,207)	(3,755)
Cash Collateral Received/Pledged	(37,109)	(31,968)
Liabilities, Total [Member] | Other Liabilities [Member]
Offsetting Assets [Line Items]
Net amount	304,438	274,564
Gross amounts recognized	358,754	310,287
Gross amounts offset in the balance sheet	0	0
Net amounts presented in the balance sheet	358,754	310,287
Gross amounts not offset in the balance sheet	(17,207)	(3,755)
Cash Collateral Received/Pledged	$ (37,109)	$ (31,968)

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Offsetting Assets and Liabilities (Tables)

9 Months Ended

Sep. 30, 2015

Offsetting Assets and Liabilities [Abstract]

Fair Value, by Balance Sheet Grouping [Table Text Block]

	September 30, 2015
(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	$	1,325,501	$	—	$	1,325,501	$	—		$	—		$	1,325,501
Derivatives (included in other assets)	103,119		—		103,119		(17,207		)	—			85,912
	$	1,428,620	$	—	$	1,428,620	$	(17,207	)	$	—		$	1,411,413
Liabilities:
Federal funds and other short-term borrowings	$	272,391	$	—	$	272,391	$	—		$	—		$	272,391
Derivatives (included in other liabilities)	86,363		—		86,363		(17,207		)	(37,109		)	32,047
	$	358,754	$	—	$	358,754	$	(17,207	)	$	(37,109	)	$	304,438

	December 31, 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	$	1,386,291	$	—	$	1,386,291	$	—		$	—		$	1,386,291
Derivatives (included in other assets)	66,420		—		66,420		(3,755		)				62,665
	$	1,452,711	$	—	$	1,452,711	$	(3,755	)	$	—		$	1,448,956
Liabilities:
Federal funds and other short-term borrowings	$	244,223	$	—	$	244,223	$	—		$	—		$	244,223
Derivatives (included in other liabilities)	66,064		—		66,064		(3,755		)	(31,968		)	30,341
	$	310,287	$	—	$	310,287	$	(3,755	)	$	(31,968	)	$	274,564

	September 30, 2015					December 31, 2014
(In thousands)	Carrying value		Estimated fair value		Level	Carrying value		Estimated fair value		Level
Financial assets:
HTM investment securities	$	544,168	$	553,088	3	$	647,252	$	677,196	3
Loans and leases (including loans held for sale), net of allowance	39,655,805		39,414,672		3	39,591,499		39,426,498		3
Financial liabilities:
Time deposits	2,216,206		2,223,094		2	2,406,924		2,408,550		2
Foreign deposits	441,560		441,548		2	328,391		328,447		2
Long-term debt (less fair value hedges)	944,613		975,642		2	1,090,778		1,159,287		2

XML

Fair Value (Schedule Of Realized Gains (Losses) Using Level 3 Inputs) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Dividends and Other Investment Income (Loss) [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Realized gains (losses) from Level 3 inputs	$ (6)	$ 0	$ (2)	$ 34
Fixed Income Securities Gains (Losses), Net [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Realized gains (losses) from Level 3 inputs	0	(13,917)	(137,641)	21,380
Level 3 Equity Securities Gains (Losses), Net [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Realized gains (losses) from Level 3 inputs	(10,637)	0	(11,311)	0
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	(344)	18
Fair Value, Assets Measured On Recurring Basis, And Gain (Loss) Included In Accretion Of Purchase Discount On Securities Available-For-Sale		$ 9	3	27
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
Estimate of Fair Value Measurement [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other Liabilities, Fair Value Disclosure					$ 13
Estimate of Fair Value Measurement [Member] | Other Postretirement Benefits, Individual Contracts, Type of Deferred Compensation [Domain]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other Assets, Fair Value Disclosure	83,703		83,703		88,878
Other Liabilities, Fair Value Disclosure	$ 83,703		$ 83,703		$ 88,878

XML

Consolidated Statements Of Changes In Shareholders' Equity (Parenthetical) - $ / shares	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Dividends on common stock, per share	$ 0.16	$ 0.12

XML

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Statement of Financial Position [Abstract]
Held-to-maturity, fair value	$ 553,088	$ 677,196
Preferred stock, authorized shares	4,400,000	4,400,000
Common stock, authorized shares	350,000,000	350,000,000
Common stock, issued shares	204,278,594	203,014,903
Common stock, outstanding shares	204,278,594	203,014,903

XML

Income Taxes

9 Months Ended

Sep. 30, 2015

Income Tax Disclosure [Abstract]

Income Taxes

INCOME TAXES

The effective income tax rate of 28.8% for the third quarter of 2015 was lower than the 2014 third quarter rate of 35.6%, primarily due to the recognition of tax credits for certain research and development initiatives and for a project related to alternative energy that was placed in service during the third quarter of 2015. On a year-to-date basis, the 2015 tax rate of 32.0% was lower than the 2014 rate of 36.1% due primarily to the tax credit projects and to an increase in the proportion of nontaxable items relative to pretax income.

Net deferred tax assets were approximately $201 million at September 30, 2015 and $224 million at December 31, 2014. We evaluate 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, 2015.

XML

Document And Entity Information - shares	9 Months Ended
	Sep. 30, 2015	Nov. 02, 2015
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2015
Document Fiscal Year Focus	2015
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		204,294,516

XML

Fair Value

9 Months Ended

Sep. 30, 2015

Fair Value Disclosures [Abstract]

Fair Value

FAIR VALUE

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 Committee (“SVC”) comprised of executive management appointed by the Board of Directors. The SVC reviews and approves on a quarterly basis the key components of fair value estimation, including critical valuation assumptions for Level 3 modeling. A Model Risk Management Group conducts model validations, including internal models, 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 92% of our AFS Level 2 securities. Fair values for other AFS Level 2 and for Level 3 securities generally use certain inputs corroborated by market data and include standard form discounted cash flow modeling.

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.

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

U.S. Treasury, Agencies and Corporations

U.S. Treasury securities are measured under Level 1 using quoted market prices when available. 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 generally using the third party pricing service. Valuation inputs include Baa municipal curves, as well as FHLB and London Interbank Offered Rate (“LIBOR”) swap curves.

Money Market Mutual Funds and Other

Money market mutual funds and other securities are measured under Level 1 or Level 2. For Level 1, quoted market prices are used which may include net asset values or their equivalents. Level 2 valuations generally use quoted prices for similar securities.

Trading Account

Securities in the trading account are measured under Level 1 using quoted market prices. If not available, quoted prices under Level 2 for similar securities are used.

Bank-Owned Life Insurance

Bank-owned life insurance (“BOLI”) 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 policies are general account policies with CSVs based on the Company’s claims on the assets of the insurance companies. The insurance companies’ investments include predominantly fixed income securities consisting of investment-grade corporate bonds and various types of mortgage instruments. Management regularly reviews its BOLI investment performance, including concentrations among insurance providers.

Private Equity Investments

Private equity investments are measured under Level 3. The Equity Investments Committee, consisting of executives familiar with the investments, reviews periodic financial information, including audited financial statements when available. Certain analytics may be employed that include current and projected financial performance, recent financing activities, economic and market conditions, market comparables, market liquidity, sales restrictions, and other factors. The amount of unfunded commitments to invest 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.

Agriculture Loan Servicing

This asset results from our servicing of agriculture loans approved and funded by Federal Agricultural Mortgage Corporation (“FAMC”). We provide this servicing under an agreement with FAMC 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 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 consist of shares of registered investment companies. These mutual funds are valued under Level 1 at quoted market prices, which represents the NAV 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 foreign 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, included in “Federal funds and other short-term borrowings” on the balance sheet, 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, 2015
	Level 1		Level 2		Level 3		Total
ASSETS
Investment securities:
Available-for-sale:
U.S. Treasury, agencies and corporations	$	—	$	5,741,982	$	—	$	5,741,982
Municipal securities			213,398				213,398
Other debt securities			22,767				22,767
Money market mutual funds and other	18,509		3,355				21,864
	18,509		5,981,502		—		6,000,011
Trading account			73,521				73,521
Other noninterest-bearing investments:
Bank-owned life insurance			482,199				482,199
Private equity investments					120,195		120,195
Other assets:
Agriculture loan servicing and interest-only strips					13,161		13,161
Deferred compensation plan assets	83,703						83,703
Derivatives:
Interest rate related and other			18,270				18,270
Interest rate swaps for customers			66,805				66,805
Foreign currency exchange contracts	18,947						18,947
	18,947		85,075		—		104,022
	$	121,159	$	6,622,297	$	133,356	$	6,876,812
LIABILITIES
Securities sold, not yet purchased	$	29,566	$	—	$	—	$	29,566
Other liabilities:
Deferred compensation plan obligations	83,703						83,703
Derivatives:
Interest rate related and other			245				245
Interest rate swaps for customers			69,991				69,991
Foreign currency exchange contracts	16,372						16,372
	16,372		70,236		—		86,608
	$	129,641	$	70,236	$	—	$	199,877

(In thousands)	December 31, 2014
	Level 1		Level 2		Level 3		Total
ASSETS
Investment securities:
Available-for-sale:
U.S. Treasury, agencies and corporations	$	—	$	3,098,208	$	—	$	3,098,208
Municipal securities			185,093		4,164		189,257
Asset-backed securities:
Trust preferred – banks and insurance			22,701		393,007		415,708
Auction rate					4,761		4,761
Other			666		25		691
Money market mutual funds and other	105,348		30,275				135,623
	105,348		3,336,943		401,957		3,844,248
Trading account			70,601				70,601
Other noninterest-bearing investments:
Bank-owned life insurance			476,290				476,290
Private equity investments					99,865		99,865
Other assets:
Agriculture loan servicing and interest-only strips					12,227		12,227
Deferred compensation plan assets	88,878						88,878
Derivatives:
Interest rate related and other			1,508				1,508
Interest rate swaps for customers			48,287				48,287
Foreign currency exchange contracts	16,625						16,625
	16,625		49,795		—		66,420
	$	210,851	$	3,933,629	$	514,049	$	4,658,529
LIABILITIES
Securities sold, not yet purchased	$	24,230	$	—	$	—	$	24,230
Other liabilities:
Deferred compensation plan obligations	88,878						88,878
Derivatives:
Interest rate related and other			297				297
Interest rate swaps for customers			50,669				50,669
Foreign currency exchange contracts	15,272						15,272
	15,272		50,966		—		66,238
Other					13		13
	$	128,380	$	50,966	$	13	$	179,359

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, 2015
(In thousands)	Municipal securities		Trust  preferred – banks and insurance		Other		Private equity investments			Ag loan svcg and int-only strips			Derivatives and other liabilities
Balance at June 30, 2015	$	—	$	—	$	—	$	110,115		$	13,502		$	—
Net gains (losses) included in:
Statement of income:
Dividends and other investment income (loss)							(620		)
Equity securities gains, net							3,587
Other noninterest loss, net										(375		)
Purchases							8,184			234
Sales							(126		)
Redemptions and paydowns							(945		)	(200		)
Balance at September 30, 2015	$	—	$	—	$	—	$	120,195		$	13,161		$	—

	Level 3 Instruments
	Nine Months Ended September 30, 2015
(In thousands)	Municipal securities			Trust  preferred – banks and insurance			Other			Private equity investments			Ag loan svcg and int-only strips			Derivatives and other liabilities
Balance at December 31, 2014	$	4,164		$	393,007		$	4,761		$	97,649		$	12,227		$	(13	)
Net gains (losses) included in:
Statement of income:
Accretion of purchase discount on securities available-for-sale	3			471
Dividends and other investment loss										(1,179		)
Equity securities gains, net										7,554
Fixed income securities losses, net	(344		)	(136,691		)	(606		)
Other noninterest income, net													1,112
Other noninterest expense																13
Other comprehensive income (loss)	687			141,547			(74		)
Fair value of HTM securities reclassified as AFS				57,308
Purchases										20,498			615
Sales	(2,651		)	(440,055		)	(4,081		)	(2,634		)
Redemptions and paydowns	(1,859		)	(15,587		)				(1,693		)	(793		)
Balance at September 30, 2015	$	—		$	—		$	—		$	120,195		$	13,161		$	—

	Level 3 Instruments
	Three Months Ended September 30, 2014
(In thousands)	Municipal securities			Trust  preferred – banks and insurance			Trust preferred – REIT 1		Auction rate			Other asset-backed			Private equity investments			Ag loan svcg and int-only strips			Derivatives and other 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 securities			Trust  preferred – banks and insurance			Trust preferred – REIT 1			Auction rate			Other asset-backed			Private equity investments			Ag loan svcg and int-only strips			Derivatives and other 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 gains, 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	)

¹  Real Estate Investment Trust

Except for the transfers included in the previous schedule, no transfers of assets or liabilities occurred among Levels 1, 2 or 3 for the three and nine months endedSeptember 30, 2015 and 2014. Transfers are considered to have occurred as of the end of the reporting period.

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,
	2015			2014			2015			2014
Dividends and other investment income	$	(6	)	$	—		$	(2	)	$	34
Fixed income securities gains (losses), net	—			(13,917		)	(137,641		)	21,380
Equity securities losses, net	(10,637		)	—			(11,311		)	—

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, 2015								Fair value at December 31, 2014
	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
ASSETS
Private equity investments, carried at cost	$	—	$	—	$	2,974	$	2,974	$	—	$	—	$	23,454	$	23,454
Impaired loans	—		14,419		—		14,419		—		16,574		—		16,574
Other real estate owned	—		2,221		—		2,221		—		8,034		—		8,034
	$	—	$	16,640	$	2,974	$	19,614	$	—	$	24,608	$	23,454	$	48,062

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 September 30,						Nine Months Ended September 30,
	2015			2014			2015			2014
ASSETS
HTM securities adjusted for OTTI	$	—		$	—		$	—		$	(27	)
Private equity investments, carried at cost	(625		)	(339		)	(2,903		)	(471		)
Impaired loans	(7,666		)	(807		)	(12,682		)	(12,126		)
Other real estate owned	(565		)	(3,088		)	(1,883		)	(6,259		)
	$	(8,856	)	$	(4,234	)	$	(17,468	)	$	(18,883	)

During the three and nine months endedSeptember 30, we recognized net gains of $0.8 million and $2.7 million in 2015 and $1.9 million and $4.4 million in 2014 from the sale of other real estate owned (“OREO”) properties that had a carrying value at the time of sale of approximately $13.1 million and $30.7 million during the nine months endedSeptember 30, 2015 and 2014, respectively. Previous to their sale in these periods, we recognized impairment on these properties that was not significant for the three months ended September 30, 2015 and 2014, and was $0.4 million and $0.5 million for the nine months ended September 30, 2015 and 2014, respectively.

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 $28.7 million at September 30, 2015 and $39.1 million at December 31, 2014. Amounts of other noninterest-bearing investments carried at cost were $220.2 million at September 30, 2015 and $250.7 million at December 31, 2014, 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 initially at fair value based on property appraisals at the time of transfer and subsequently at the lower of cost or fair value.

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, 2015					December 31, 2014
(In thousands)	Carrying value		Estimated fair value		Level	Carrying value		Estimated fair value		Level
Financial assets:
HTM investment securities	$	544,168	$	553,088	3	$	647,252	$	677,196	3
Loans and leases (including loans held for sale), net of allowance	39,655,805		39,414,672		3	39,591,499		39,426,498		3
Financial liabilities:
Time deposits	2,216,206		2,223,094		2	2,406,924		2,408,550		2
Foreign deposits	441,560		441,548		2	328,391		328,447		2
Long-term debt (less fair value hedges)	944,613		975,642		2	1,090,778		1,159,287		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. 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.

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Consolidated Statements Of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Interest income:
Interest and fees on loans	$ 419,981	$ 430,416	$ 1,256,378	$ 1,298,567
Interest on money market investments	6,018	5,483	17,021	15,501
Interest on Securities	30,231	24,377	86,513	76,973
Interest expense:
Interest on deposits	12,542	12,313	36,967	37,188
Interest on short- and long-term borrowings	18,311	31,144	56,518	104,280
Total interest expense	30,853	43,457	93,485	141,468
Net interest income	425,377	416,819	1,266,427	1,249,573
Provision for loan losses	18,262	(54,643)	17,334	(109,669)
Net interest income after provision for loan losses	407,115	471,462	1,249,093	1,359,242
Noninterest income:
Service charges and fees on deposit accounts	43,196	43,468	126,006	126,068
Other service charges, commissions and fees	52,837	51,639	152,028	143,847
Wealth management income	7,496	7,438	23,271	22,495
Loan sales and servicing income	7,728	7,592	23,816	22,020
Capital markets and foreign exchange	6,624	5,400	19,400	16,319
Dividends and other investment income	8,449	11,324	27,164	27,183
Fair value and nonhedge derivative income (loss)	(1,555)	44	(799)	(10,429)
Equity securities gains, net	3,630	440	11,822	3,865
Fixed income securities gains (losses), net	(53)	(13,901)	(138,728)	22,039
Impairment losses on investment securities:
Impairment losses on investment securities	0	$ 0	0	(27)
Less amounts recognized in other comprehensive income	0		0	0
Net impairment losses on investment securities	0	$ 0	0	(27)
Other	2,461	2,627	9,076	5,854
Total noninterest income	130,813	116,071	253,056	379,234
Noninterest expense:
Salaries and employee benefits	242,023	245,518	736,675	717,680
Occupancy, net	29,477	28,495	88,911	85,739
Furniture, equipment and software	30,416	28,524	91,376	84,454
Other real estate expense, net	(40)	875	(111)	2,216
Credit-related expense	6,914	6,508	20,959	20,615
Provision for Unfunded Lending Commitments	(1,428)	16,095	(313)	10,328
Professional and legal services	12,699	16,588	37,292	39,754
Advertising	6,136	6,094	19,622	19,295
FDIC premiums	8,500	8,204	25,228	24,143
Amortization of core deposit and other intangibles	2,298	2,665	6,974	8,283
Debt extinguishment cost	0	44,422	2,395	44,422
Other	56,298	66,738	168,076	206,353
Total noninterest expense	396,149	438,536	1,197,710	1,242,626
Income before income taxes	141,779	148,997	304,439	495,850
Income taxes	40,780	53,109	97,455	179,202
Net income	100,999	95,888	206,984	316,648
Dividends on preferred stock	(16,761)	(16,761)	(48,567)	(56,841)
Net earnings applicable to common shareholders	$ 84,238	$ 79,127	$ 158,417	$ 259,807
Weighted average common shares outstanding during the period:
Basic shares	203,668	196,687	203,057	188,643
Diluted shares	204,155	197,271	203,511	189,260
Net earnings per common share:
Basic	$ 0.41	$ 0.40	$ 0.77	$ 1.36
Diluted	$ 0.41	$ 0.40	$ 0.77	$ 1.36
Interest and Dividend Income, Operating	$ 456,230	$ 460,276	$ 1,359,912	$ 1,391,041

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Offsetting Assets and Liabilities (Notes)

9 Months Ended

Sep. 30, 2015

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, 2015
(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	$	1,325,501	$	—	$	1,325,501	$	—		$	—		$	1,325,501
Derivatives (included in other assets)	103,119		—		103,119		(17,207		)	—			85,912
	$	1,428,620	$	—	$	1,428,620	$	(17,207	)	$	—		$	1,411,413
Liabilities:
Federal funds and other short-term borrowings	$	272,391	$	—	$	272,391	$	—		$	—		$	272,391
Derivatives (included in other liabilities)	86,363		—		86,363		(17,207		)	(37,109		)	32,047
	$	358,754	$	—	$	358,754	$	(17,207	)	$	(37,109	)	$	304,438

	December 31, 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	$	1,386,291	$	—	$	1,386,291	$	—		$	—		$	1,386,291
Derivatives (included in other assets)	66,420		—		66,420		(3,755		)				62,665
	$	1,452,711	$	—	$	1,452,711	$	(3,755	)	$	—		$	1,448,956
Liabilities:
Federal funds and other short-term borrowings	$	244,223	$	—	$	244,223	$	—		$	—		$	244,223
Derivatives (included in other liabilities)	66,064		—		66,064		(3,755		)	(31,968		)	30,341
	$	310,287	$	—	$	310,287	$	(3,755	)	$	(31,968	)	$	274,564

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.

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Supplemental Cash Flow Information

9 Months Ended

Sep. 30, 2015

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 September 30,				Nine Months Ended September 30,
	2015		2014		2015		2014
Loans and leases transferred to other real estate owned	$	3,446	$	8,954	$	10,098	$	20,197
Loans held for sale reclassified as loans and leases	22,299		9,658		33,042		14,739
Amortized cost of HTM securities reclassified as AFS securities	—		—		79,276		—

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Supplemental Cash Flow Information (Tables)

9 Months Ended

Sep. 30, 2015

Supplemental Cash Flow Information [Abstract]

Schedule of Other Significant Noncash Transactions [Table Text Block]

(In thousands)	Three Months Ended September 30,				Nine Months Ended September 30,
	2015		2014		2015		2014
Loans and leases transferred to other real estate owned	$	3,446	$	8,954	$	10,098	$	20,197
Loans held for sale reclassified as loans and leases	22,299		9,658		33,042		14,739
Amortized cost of HTM securities reclassified as AFS securities	—		—		79,276		—

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Commitments, Guarantees, And Contingent Liabilities

9 Months Ended

Sep. 30, 2015

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, 2015		December 31, 2014
Net unfunded commitments to extend credit 1	$	16,969,127	$	16,658,757
Standby letters of credit:
Financial	701,945		745,895
Performance	204,949		183,482
Commercial letters of credit	77,874		32,144
Total unfunded lending commitments	$	17,953,895	$	17,620,278

¹  Net of participations

The Company’s 2014 Annual Report on Form 10-K contains further information about these commitments and guarantees including their terms and collateral requirements. At September 30, 2015, the Company had recorded approximately $15.2 million as a liability for the guarantees associated with the standby letters of credit, which consisted of $12.0 million attributable to the RULC and $3.2 million of deferred commitment fees.

At September 30, 2015, the Parent has guaranteed $15 million of debt of affiliated trusts issuing trust preferred securities.

At September 30, 2015, we had unfunded commitments for private equity investments of approximately $48 million. These obligations have no stated maturity. Certain PEIs related to these commitments are prohibited by the Volcker Rule. See related discussions about these investments 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. 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. 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.

As of September 30, 2015, we were subject to the following material litigation and governmental inquiries:

• a class action case, Reyes v. Zions First National Bank, et. al., which was brought in the United States District Court for the Eastern District of Pennsylvania in early 2010. This case relates to our banking relationships with customers that allegedly engaged in wrongful telemarketing practices. The plaintiff is seeking a trebled monetary award under the federal RICO Act. In the third quarter of 2013, the District Court denied the plaintiff’s motion for class certification in the Reyes case. The plaintiff appealed the District Court decision to the Third Circuit Court of Appeals. In the third quarter of 2015, the Third Circuit vacated the District Court’s decision denying class certification and remanded the matter to the District Court with instructions to reconsider the class certification determination in light of particular standards articulated by the Third Circuit in its opinion. The District Court judge has directed the parties to participate in a settlement conference with a federal magistrate judge in the fourth quarter of 2015.

• a governmental inquiry into 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). Our first contact with the United States Attorney’s Office relating to this matter occurred in early 2012. We are unclear about the status of this inquiry.

• a governmental inquiry into 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). This inquiry has been directed towards the banking industry generally, including numerous banks unrelated to us, and has led to a number of enforcement actions. Our first contact with the Department of Justice relating to this matter occurred in early 2013. We are unclear about the status of the inquiry as it relates to us.

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. Based on information available as of September 30, 2015, we estimated the aggregate range of reasonably possible losses for those matters to be from $0 million to roughly $50 million in excess of amounts accrued. 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.

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Derivative Instruments And Hedging Activities

9 Months Ended

Sep. 30, 2015

Summary of Derivative Instruments [Abstract]

Derivative Instruments And Hedging Activities

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES

Objectives

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 commercial loans.

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.

Accounting

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 cash flows, or other types of forecasted transactions, are considered cash flow hedges.

For derivatives designated as fair value hedges, 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 years, 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 into earnings, as discussed subsequently.

For derivatives designated as cash flow hedges, the effective portion of changes in the fair value of the derivative are 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.

The remaining balances of any derivative instruments terminated prior to maturity, including amounts in accumulated other comprehensive income (“AOCI”) for swap hedges, are accreted or amortized to interest income or expense over the period 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, 2015, we estimate that an additional$11.6 millionwill be reclassified.

Collateral and Credit Risk

Exposure to credit risk arises from the possibility of nonperformance by counterparties. Financial institutions which are well capitalized and well established are the counterparties for those derivatives entered into for asset liability management and to offset derivatives sold to our customers. The Company reduces its counterparty exposure for derivative contracts by centrally clearing all eligible derivatives.

For those derivatives that are not centrally cleared, the counterparties are typically financial institutions or customers of the Company. For those that are financial institutions, we manage our credit exposure through the use of a Credit Support Annex (“CSA”) to International Swaps and Derivative Association (“ISDA”) master agreements. Eligible collateral types are documented by the CSA and controlled under the Company’s general credit policies. They are typically monitored on a daily basis. A valuation haircut policy reflects the fact that collateral may fall in value between the date the collateral is called and the date of liquidation or enforcement. In practice, all of the Company’s collateral held as credit risk mitigation under a CSA is cash.

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 offset through matching derivative contracts, such that the Company minimizes its interest rate risk exposure resulting from such transactions. Most of these customers do not have the capability for centralized clearing. Therefore we manage the credit risk through loan underwriting which includes a credit risk exposure formula for the swap, the same collateral and guarantee protection applicable to the loan and credit approvals, limits, and monitoring procedures. Fee income from customer swaps is included in other service charges, commissions and fees. No significant 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. See Note 6 for further discussion of our underwriting, collateral requirements, and other procedures used to address credit risk.

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, 2015, the fair value of our derivative liabilities was $86.4 million, for which we were required to pledge cash collateral of approximately $61.0 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, 2015, the additional amount of collateral we could be required to pledge is approximately $1.9 million. As a result of 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.

Derivative Amounts

Selected information with respect to notional amounts and recorded gross fair values at September 30, 2015 and December 31, 2014, and the related gain (loss) of derivative instruments for the three and nine months endedSeptember 30, 2015 and 2014 is summarized as follows:

	September 30, 2015						December 31, 2014
	Notional amount		Fair value				Notional amount		Fair value
(In thousands)			Other assets		Other liabilities				Other assets		Other liabilities
Derivatives designated as hedging instruments
Asset derivatives
Cash flow hedges:
Interest rate swaps	$	1,387,500	$	17,367	$	—	$	275,000	$	1,508	$	123
Total derivatives designated as hedging instruments	1,387,500		17,367		—		275,000		1,508		123
Derivatives not designated as hedging instruments
Interest rate swaps for customers 2	3,237,694		66,805		69,991		2,770,052		48,287		50,669
Foreign exchange	340,818		18,947		16,372		443,721		16,625		15,272
Total derivatives not designated as hedging instruments	3,578,512		85,752		86,363		3,213,773		64,912		65,941
Total derivatives	$	4,966,012	$	103,119	$	86,363	$	3,488,773	$	66,420	$	66,064

	Three Months Ended September 30, 2015								Nine Months Ended September 30, 2015
	Amount of derivative gain (loss) recognized/reclassified
(In thousands)	OCI		Reclassified from AOCI to interest income 3		Noninterest income (expense)		Offset to interest expense		OCI		Reclassified from AOCI to interest income 3		Noninterest income (expense)		Offset to interest expense
Derivatives designated as hedging instruments
Asset derivatives
Cash flow hedges 1:
Interest rate swaps	$	17,343	$	2,957					$	21,172	$	5,191
	17,343		2,957						21,172		5,191
Liability derivatives
Fair value hedges:
Terminated swaps on long-term debt							$	431							$	1,364
Total derivatives designated as hedging instruments	17,343		2,957				431		21,172		5,191				1,364
Derivatives not designated as hedging instruments
Interest rate swaps for customers 2					$	939							$	5,329
Futures contracts					1								2
Foreign exchange					2,506								6,938
Total derivatives not designated as hedging instruments					3,446								12,269
Total derivatives	$	17,343	$	2,957	$	3,446	$	431	$	21,172	$	5,191	$	12,269	$	1,364

	Three Months Ended September 30, 2014									Nine Months Ended September 30, 2014
	Amount of derivative gain (loss) recognized/reclassified
(In thousands)	OCI			Reclassified from AOCI to interest income 3		Noninterest income (expense)		Offset to interest expense		OCI		Reclassified from AOCI to interest income 3		Noninterest income (expense)			Offset to interest expense
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

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 AOCI represent the effective portion of the derivative gain.

²  Notional amounts include both the customer swaps and the offsetting derivative contracts.

³  Amounts for the three and nine months endedSeptember 30, of $3.0 million and $5.2 millionin 2015, and $0.8 million and $1.7 million in 2014, respectively, are the amounts of reclassification to earnings from AOCI presented in Note 8.

At September 30,2015, the fair value of derivative assets was reduced by a net credit valuation adjustment of $3.0 million. The adjustment for derivative liabilities was not significant. At September 30,2014, these same adjustments were $1.7 million and $0.3 million, respectively. These adjustments are required to reflect both our own nonperformance risk and the respective counterparty’s nonperformance risk.

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Debt And Shareholders' Equity (Schedule Of Changes In Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Debt And Shareholders' Equity [Line Items]
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Tax			$ 65,549	$ 61,714
Interest income expense, net, after tax	$ 84,238	$ 79,127	158,417	259,807
Income Tax Expense (Benefit)	40,780	53,109	97,455	179,202
Interest Income (Expense), Net	425,377	416,819	1,266,427	1,249,573
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net	0	0	0	27
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax			28,433	101,401
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax			82,633	(20,227)
Beginning balance			(128,041)	(192,101)
Other comprehensive income (loss)	18,197	25,910	111,066	81,174
Ending balance	(16,975)	(110,927)	(16,975)	(110,927)
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Tax			6,311	(214)
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Tax			0	0
Other Comprehensive Income (Loss), Tax			71,860	61,500
Accumulated Net Unrealized Investment Gain (Loss) [Member]
Debt And Shareholders' Equity [Line Items]
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax			15,398	100,723
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax			85,845	(19,206)
Beginning balance			(91,921)	(168,805)
Other comprehensive income (loss)			101,243	81,517
Ending balance	9,322	(87,288)	9,322	(87,288)
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			13,035	678
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax			(3,212)	(1,021)
Beginning balance			2,226	1,556
Other comprehensive income (loss)			9,823	(343)
Ending balance	12,049	1,213	12,049	1,213
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			(38,346)	(24,852)
Other comprehensive income (loss)			0	0
Ending balance	(38,346)	(24,852)	(38,346)	(24,852)
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	(53)	(13,901)	(138,728)	22,039
Interest income expense, net, after tax	0	0	0	(17)
Income Tax Expense (Benefit)	0	0	0	(10)
Other than temporary impairment losses investments accretion of noncreidt portion held to maturity securities, after tax	(33)	(8,162)	(85,845)	19,206
Other than temporary impairment losses investments accretion of noncredit portion held to maturity securities, tax	0	191	0	576
Other than Temporary Impairment Losses, Investments, Accretion of Noncredit Portion, Held-to-maturity Securities, before Tax	0	(467)	0	(1,411)
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net	0	0	0	(27)
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	1,830	463	3,212	1,021
Income Tax Expense (Benefit)	1,127	307	1,979	677
Interest Income (Expense), Net	2,957	770	5,191	1,698
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	(33)	(7,886)	(85,845)	20,058
Income Tax Expense (Benefit)	$ (20)	$ (6,015)	$ (52,883)	$ 1,981

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Investment Securities

9 Months Ended

Sep. 30, 2015

Investments [Abstract]

Investment Securities

INVESTMENTS

Investment Securities

Investment securities are summarized below. Note 10 discusses the process to estimate fair value for investment securities.

	September 30, 2015
(In thousands)	Amortized cost		Gross unrealized gains		Gross unrealized losses		Estimated fair value
Held-to-maturity
Municipal securities	$	544,168	$	9,976	$	1,056	$	553,088
Available-for-sale
U.S. Government agencies and corporations:
Agency securities	1,102,978		7,147		578		1,109,547
Agency guaranteed mortgage-backed securities	2,805,901		12,989		5,619		2,813,271
Small Business Administration loan-backed securities	1,815,766		14,177		10,779		1,819,164
Municipal securities	212,698		1,059		359		213,398
Other debt securities	25,485		187		2,905		22,767
	5,962,828		35,559		20,240		5,978,147
Money market mutual funds and other	21,773		91		—		21,864
	5,984,601		35,650		20,240		6,000,011
Total	$	6,528,769	$	45,626	$	21,296	$	6,553,099

	December 31, 2014
			Recognized in OCI 1						Not recognized in OCI
(In thousands)	Amortized cost		Gross unrealized gains		Gross unrealized losses		Carrying value		Gross unrealized gains		Gross unrealized losses		Estimated fair value
Held-to-maturity
Municipal securities	$	607,675	$	—	$	—	$	607,675	$	13,018	$	804	$	619,889
Asset-backed securities:
Trust preferred securities – banks and insurance	79,276		—		39,699		39,577		18,393		663		57,307
	686,951		—		39,699		647,252		$	31,411	$	1,467	677,196
Available-for-sale
U.S. Government agencies and corporations:
Agency securities	607,523		1,572		8,343		600,752						600,752
Agency guaranteed mortgage-backed securities	935,164		12,132		2,105		945,191						945,191
Small Business Administration loan-backed securities	1,544,710		16,446		8,891		1,552,265						1,552,265
Municipal securities	189,059		1,143		945		189,257						189,257
Asset-backed securities:
Trust preferred securities – banks and insurance	537,589		103		121,984		415,708						415,708
Other	5,252		207		7		5,452						5,452
	3,819,297		31,603		142,275		3,708,625						3,708,625
Money market mutual funds and other	136,591		76		1,044		135,623						135,623
	3,955,888		31,679		143,319		3,844,248						3,844,248
Total	$	4,642,839	$	31,679	$	183,018	$	4,491,500					$	4,521,444

¹  Other comprehensive income

CDO Sales and Paydowns

During the second quarter of 2015, we sold the remaining portfolio of our collateralized debt obligation (“CDO”) securities, or $574 million at amortized cost, and realized net losses of approximately $137 million.

During the first quarter of 2015, we reclassified all of the remaining held-to-maturity (“HTM”) CDO securities, or approximately $79 million at amortized cost, to available-for-sale (“AFS”) securities. The reclassification resulted from increased risk weights for these securities under the new Basel III capital rules, and was made in accordance with applicable accounting guidance that allows for such reclassifications when increased risk weights of debt securities must be used for regulatory risk-based capital purposes. No gain or loss was recognized in the statement of income at the time of reclassification.

During the first nine months of 2014, we recorded a total of $1,294 million par amount of sales and paydowns of CDO securities, resulting in net gains of approximately $22 million. These sales were made in part as a result of the Volcker Rule (“VR”).

Maturities

The amortized cost and estimated fair value of investment debt securities are shown subsequently as of September 30, 2015 by expected timing of principal payments. Actual principal payments may differ from contractual or expected principal payments 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 cost		Estimated fair value		Amortized cost		Estimated fair value
Principal return in one year or less	$	88,169	$	88,714	$	822,647	$	824,744
Principal return after one year through five years	168,734		171,164		2,314,091		2,319,836
Principal return after five years through ten years	152,942		158,331		1,857,898		1,862,624
Principal return after ten years	134,323		134,879		968,192		970,943
	$	544,168	$	553,088	$	5,962,828	$	5,978,147

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, 2015
	Less than 12 months				12 months or more				Total
(In thousands)	Gross unrealized losses		Estimated fair value		Gross unrealized losses		Estimated fair value		Gross unrealized losses		Estimated fair value
Held-to-maturity
Municipal securities	$	901	$	55,763	$	155	$	11,681	$	1,056	$	67,444
Available-for-sale
U.S. Government agencies and corporations:
Agency securities	65		34,737		513		137,964		578		172,701
Agency guaranteed mortgage-backed securities	5,361		1,330,271		258		15,351		5,619		1,345,622
Small Business Administration loan-backed securities	4,550		453,651		6,229		452,275		10,779		905,926
Municipal securities	305		34,703		54		4,125		359		38,828
Other debt securities	—		—		2,905		12,097		2,905		12,097
	10,281		1,853,362		9,959		621,812		20,240		2,475,174
Total	$	11,182	$	1,909,125	$	10,114	$	633,493	$	21,296	$	2,542,618

	December 31, 2014
	Less than 12 months				12 months or more				Total
(In thousands)	Gross unrealized losses		Estimated  fair  value		Gross unrealized losses		Estimated  fair  value		Gross unrealized losses		Estimated  fair  value
Held-to-maturity
Municipal securities	$	527	$	62,762	$	277	$	14,003	$	804	$	76,765
Asset-backed securities:
Trust preferred securities – banks and insurance	53		122		40,309		57,186		40,362		57,308
	580		62,884		40,586		71,189		41,166		134,073
Available-for-sale
U.S. Government agencies and corporations:
Agency securities	4,510		295,694		3,833		101,188		8,343		396,882
Agency guaranteed mortgage-backed securities	1,914		425,114		191		12,124		2,105		437,238
Small Business Administration loan-backed securities	5,869		495,817		3,022		175,523		8,891		671,340
Municipal securities	258		36,551		687		4,616		945		41,167
Asset-backed securities:
Trust preferred securities – banks and insurance	—		—		121,984		405,605		121,984		405,605
Other	7		1,607		—		—		7		1,607
	12,558		1,254,783		129,717		699,056		142,275		1,953,839
Money market mutual funds and other	1,044		71,907		—		—		1,044		71,907
	13,602		1,326,690		129,717		699,056		143,319		2,025,746
Total	$	14,182	$	1,389,574	$	170,303	$	770,245	$	184,485	$	2,159,819

At September 30, 2015 and December 31, 2014, respectively, 146 and 153 HTM and 460 and 458 AFS investment securities were in an unrealized loss position.

Other-Than-Temporary Impairment

Ongoing Policy

We review 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 majority of the investment portfolio are debt securities). Under these circumstances, OTTI is considered to have occurred if (1) we have formed a documented intent to sell identified securities or initiated such sales; (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.

OTTI Conclusions

Our 2014 Annual Report on Form 10-K describes in more detail our OTTI evaluation process. The following summarizes the conclusions from our OTTI evaluation by each security type that has significant gross unrealized losses at September 30, 2015:

OTTI – U.S. Government Agencies and Corporations

Agency Guaranteed Mortgage-Backed Securities: These pass-through securities are comprised largely of fixed and floating-rate residential mortgage-backed securities issued by the Government National Mortgage Association (“GNMA”), the Federal National Mortgage Association, or the Federal Home Loan Mortgage Corporation. They were generally purchased at premiums with maturity dates from 10 to 15 years for fixed-rate securities and 30 years for floating-rate securities. These securities benefit from certain guarantee provisions or, in the case of GNMA, direct U.S. government guarantees. Unrealized losses relate to changes in interest rates subsequent to purchase and are not attributable to credit. At September 30, 2015, we did not have an intent to sell identified securities with unrealized losses or initiate such sales, and we believe it is more likely than not we would not be required to sell such securities before recovery of their amortized cost basis. Therefore, we did not record OTTI for these securities during the third quarter of 2015.

Small Business Administration (“SBA”) Loan-Backed Securities: These securities were generally purchased at premiums with maturities from 5 to 25 years and have principal cash flows guaranteed by the SBA. Unrealized losses relate to changes in interest rates subsequent to purchase and are not attributable to credit. At September 30, 2015, we did not have an intent to sell identified SBA securities with unrealized losses or initiate such sales, and we believe it is more likely than not we would not be required to sell such securities before recovery of their amortized cost basis. Therefore, we did not record OTTI for these securities during the third quarter of 2015.

The following is a tabular rollforward of the total amount of credit-related OTTI:

(In thousands)	Three Months Ended September 30, 2015						Nine Months Ended September 30, 2015
	HTM		AFS		Total		HTM			AFS			Total
Balance of credit-related OTTI at beginning of period	$	—	$	—	$	—	$	(9,079	)	$	(95,472	)	$	(104,551	)
Reductions for securities sold or paid off during the period	—		—		—		—			104,551			104,551
Reclassification of securities from HTM to AFS	—		—		—		9,079			(9,079		)	—
Balance of credit-related OTTI at end of period	$	—	$	—	$	—	$	—		$	—		$	—

(In thousands)	Three Months Ended September 30, 2014									Nine Months Ended September 30, 2014
	HTM			AFS			Total			HTM			AFS			Total
Balance of credit-related OTTI at beginning of period	$	(9,079	)	$	(163,914	)	$	(172,993	)	$	(9,052	)	$	(176,833	)	$	(185,885	)
Additions recognized in earnings during the period:
Additional credit-related OTTI on securities previously impaired	—			—			—			(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	)

The following summarizes gains and losses, including OTTI, that were recognized in the statement of income:

	Three Months Ended										Nine Months Ended
	September 30, 2015					September 30, 2014					September 30, 2015					September 30, 2014
(In thousands)	Gross gains		Gross losses			Gross gains		Gross losses			Gross gains		Gross losses			Gross gains		Gross losses
Investment securities:
Held-to-maturity	$	—	$	—		$	2	$	—		$	1	$	—		$	2	$	27
Available-for-sale	6		59			5,873		20,063			8,366		147,572			83,466		62,948
Other noninterest-bearing investments	14,267		10,637			5,911		5,184			23,870		11,571			10,568		5,184
	14,273		10,696			11,786		25,247			32,237		159,143			94,036		68,159
Net gains (losses)			$	3,577				$	(13,461	)			$	(126,906	)			$	25,877
Statement of income information:
Net impairment losses on investment securities			$	—				$	—				$	—				$	(27	)
Equity securities gains, net			3,630					440					11,822					3,865
Fixed income securities gains (losses), net			(53		)			(13,901		)			(138,728		)			22,039
Net gains (losses)			$	3,577				$	(13,461	)			$	(126,906	)			$	25,877

Interest income by security type is as follows:

(In thousands)	Three Months Ended September 30, 2015						Nine Months Ended September 30, 2015
	Taxable		Nontaxable		Total		Taxable		Nontaxable		Total
Investment securities:
Held-to-maturity	$	3,031	$	2,629	$	5,660	$	9,716	$	8,265	$	17,981
Available-for-sale	23,427		699		24,126		64,832		2,047		66,879
Trading	445		—		445		1,653		—		1,653
	$	26,903	$	3,328	$	30,231	$	76,201	$	10,312	$	86,513

(In thousands)	Three Months Ended September 30, 2014						Nine Months Ended September 30, 2014
	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

Investment securities with a carrying value of $1.9 billion at September 30, 2015 and $1.4 billion at December 31, 2014 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.

Private Equity Investments

Effect of Volcker Rule

The VR, as published pursuant to the Dodd-Frank Act in December 2013 and amended in January 2014, significantly restricted certain activities by covered bank holding companies, including restrictions on certain types of securities, proprietary trading, and private equity investing. The Company’s private equity investments (“PEIs”) consist of Small Business Investment Companies (“SBICs”) and non-SBICs. Following the sales of its CDO securities, the only prohibited investments under the VR requiring divestiture by the Company were certain of its PEIs. Of the recorded PEIs of $140 million at September 30, 2015, approximately $24 million remain prohibited by the VR.

As of September 30, 2015, we have sold a total of approximately $17 million of PEIs, including $9 million during the first half of 2015 and $8 million during 2014. None were sold during the third quarter of 2015. All of these sales related to prohibited PEIs. The 2015 sales resulted in insignificant amounts of realized gains or losses. We will dispose of the remaining $24 million of prohibited PEIs before the required deadline. However, the required deadline has been extended to July 21, 2016 from July 21, 2015 and the Federal Reserve has announced its intention to act in 2015 to grant an additional one-year extension to July 21, 2017. See other discussions in Notes 10 and 11.

As discussed in Note 11, we have $48 million at September 30, 2015 of unfunded commitments for PEIs, of which approximately $8 million relate to prohibited PEIs. Until we dispose of the prohibited PEIs, we expect to fund these commitments if and as the capital calls are made, as allowed under the VR.

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Loans And Allowance For Credit Losses

9 Months Ended

Sep. 30, 2015

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, 2015		December 31, 2014
Loans held for sale	$	139,122	$	132,504
Commercial:
Commercial and industrial	$	13,035,251	$	13,162,955
Leasing	426,781		408,974
Owner occupied	7,141,360		7,351,548
Municipal	600,258		520,887
Total commercial	21,203,650		21,444,364
Commercial real estate:
Construction and land development	2,213,465		1,986,408
Term	8,089,258		8,126,600
Total commercial real estate	10,302,723		10,113,008
Consumer:
Home equity credit line	2,347,061		2,321,150
1-4 family residential	5,268,840		5,200,882
Construction and other consumer real estate	370,015		370,542
Bankcard and other revolving plans	427,849		401,352
Other	192,985		212,360
Total consumer	8,606,750		8,506,286
Total loans	$	40,113,123	$	40,063,658

Loan balances are presented net of unearned income and fees, which amounted to $144.1 million at September 30, 2015 and $144.7 million at December 31, 2014.

Owner occupied and commercial real estate (“CRE”) loans include unamortized premiums of approximately $28.8 million at September 30, 2015 and $36.5 million at December 31, 2014.

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 $383.1 million at September 30, 2015 and $484.9 million at December 31, 2014.

Loans with a carrying value of approximately $22.3 billion at September 30, 2015 and $22.5 billion at December 31, 2014 have been pledged at the Federal Reserve and various Federal Home Loan Banks (“FHLBs”) as collateral for potential borrowings.

We sold loans with a carrying value of $434.1 million and $1,070.2 million for the three and nine months endedSeptember 30, 2015, and $341.3 million and $939.0 million, for the three and nine months endedSeptember 30, 2014, 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 and the guaranteed portion of SBA loans. The principal balance of sold loans for which we retain servicing was approximately $1.2 billion at both September 30, 2015 and December 31, 2014.

Amounts added to loans held for sale during these periods were $442.4 million and $1,111.0 million for the three and nine months endedSeptember 30, 2015, and $297.8 million and $894.9 million for the three and nine months endedSeptember 30, 2014, respectively. Income from loans sold, excluding servicing, was $5.0 million and $13.9 million for the three and nine months endedSeptember 30, 2015, and $4.2 million and $11.3 million for the three and nine months endedSeptember 30, 2014, respectively.

Since 2009, CB&T and NSB have had loss sharing agreements with the Federal Deposit Insurance Corporation (“FDIC”), which provided indemnification for credit losses of acquired loans and foreclosed assets up to specified thresholds. The last of the agreements for commercial loans, which comprised the major portion of the acquired portfolio, expired as of September 30, 2014. The agreements for 1-4 family residential loans will expire in 2019. In previous periods, the FDIC-supported loan balances were presented separately in this footnote and in other disclosures, and included purchased credit-impaired (“PCI”) loans, as subsequently discussed in Purchased Loans. Due to declining balances, for all periods presented herein, the FDIC-supported/PCI loans have been reclassified to their respective loan segments and classes.

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 and CRE loans are charged off or charged down when 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 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 their experience and 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. When long-term average losses exceed those losses estimated through roll rates, we use long-term average loss rates for the applicable pools. 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.

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 changes made by management in its assessment of these factors, the extent these factors are already reflected in historic loss rates, and the extent changes in these factors diverge from one to another. We also consider the uncertainty inherent in the estimation process when evaluating the ALLL.

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.

Changes in the allowance for credit losses are summarized as follows:
	Three Months Ended September 30, 2015
(In thousands)	Commercial			Commercial real estate			Consumer			Total
Allowance for loan losses
Balance at beginning of period	$	437,770		$	125,796		$	45,809		$	609,375
Additions:
Provision for loan losses	22,417			(6,621		)	2,466			18,262
Adjustment for FDIC-supported/PCI loans	—			—			—			—
Deductions:
Gross loan and lease charge-offs	(36,961		)	(1,068		)	(4,330		)	(42,359		)
Recoveries	4,471			4,162			2,529			11,162
Net loan and lease charge-offs	(32,490		)	3,094			(1,801		)	(31,197		)
Balance at end of period	$	427,697		$	122,269		$	46,474		$	596,440
Reserve for unfunded lending commitments
Balance at beginning of period	$	60,774		$	18,639		$	548		$	79,961
Provision charged (credited) to earnings	2,808			(1,467		)	87			1,428
Balance at end of period	$	63,582		$	17,172		$	635		$	81,389
Total allowance for credit losses at end of period
Allowance for loan losses	$	427,697		$	122,269		$	46,474		$	596,440
Reserve for unfunded lending commitments	63,582			17,172			635			81,389
Total allowance for credit losses	$	491,279		$	139,441		$	47,109		$	677,829

	Nine Months Ended September 30, 2015
(In thousands)	Commercial			Commercial real estate			Consumer			Total
Allowance for loan losses
Balance at beginning of period	$	412,514		$	145,009		$	47,140		$	604,663
Additions:
Provision for loan losses	53,292			(38,491		)	2,533			17,334
Adjustment for FDIC-supported/PCI loans	(57		)	57			—			—
Deductions:
Gross loan and lease charge-offs	(76,734		)	(5,637		)	(11,224		)	(93,595		)
Recoveries	38,682			21,331			8,025			68,038
Net loan and lease charge-offs	(38,052		)	15,694			(3,199		)	(25,557		)
Balance at end of period	$	427,697		$	122,269		$	46,474		$	596,440
Reserve for unfunded lending commitments
Balance at beginning of period	$	58,931		$	21,517		$	628		$	81,076
Provision charged (credited) to earnings	4,651			(4,345		)	7			313
Balance at end of period	$	63,582		$	17,172		$	635		$	81,389
Total allowance for credit losses at end of period
Allowance for loan losses	$	427,697		$	122,269		$	46,474		$	596,440
Reserve for unfunded lending commitments	63,582			17,172			635			81,389
Total allowance for credit losses	$	491,279		$	139,441		$	47,109		$	677,829

	Three Months Ended September 30, 2014
(In thousands)	Commercial			Commercial real estate			Consumer			Total
Allowance for loan losses
Balance at beginning of period	$	442,965		$	187,940		$	45,002		$	675,907
Additions:
Provision for loan losses	(19,960		)	(34,187		)	(496		)	(54,643		)
Adjustment for FDIC-supported/PCI loans	(25		)	—			—			(25		)
Deductions:
Gross loan and lease charge-offs	(20,084		)	(3,320		)	(3,067		)	(26,471		)
Recoveries	9,149			3,332			3,028			15,509
Net loan and lease charge-offs	(10,935		)	12			(39		)	(10,962		)
Balance at end of period	$	412,045		$	153,765		$	44,467		$	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	$	412,045		$	153,765		$	44,467		$	610,277
Reserve for unfunded lending commitments	54,452			24,299			626			79,377
Total allowance for credit losses	$	466,497		$	178,064		$	45,093		$	689,654

	Nine Months Ended September 30, 2014
(In thousands)	Commercial			Commercial real estate			Consumer			Total
Allowance for loan losses
Balance at beginning of period	$	469,213		$	216,012		$	61,066		$	746,291
Additions:
Provision for loan losses	(38,274		)	(57,350		)	(14,045		)	(109,669		)
Adjustment for FDIC-supported/PCI loans	(1,190		)	—			(96		)	(1,286		)
Deductions:
Gross loan and lease charge-offs	(45,903		)	(14,135		)	(10,628		)	(70,666		)
Recoveries	28,199			9,238			8,170			45,607
Net loan and lease charge-offs	(17,704		)	(4,897		)	(2,458		)	(25,059		)
Balance at end of period	$	412,045		$	153,765		$	44,467		$	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	$	412,045		$	153,765		$	44,467		$	610,277
Reserve for unfunded lending commitments	54,452			24,299			626			79,377
Total allowance for credit losses	$	466,497		$	178,064		$	45,093		$	689,654

The ALLL and outstanding loan balances according to the Company’s impairment method are summarized as follows:
	September 30, 2015
(In thousands)	Commercial		Commercial real estate		Consumer		Total
Allowance for loan losses:
Individually evaluated for impairment	$	32,191	$	2,898	$	11,014	$	46,103
Collectively evaluated for impairment	394,836		119,286		35,010		549,132
Purchased loans with evidence of credit deterioration	670		85		450		1,205
Total	$	427,697	$	122,269	$	46,474	$	596,440
Outstanding loan balances:
Individually evaluated for impairment	$	279,928	$	122,063	$	92,612	$	494,603
Collectively evaluated for impairment	20,859,442		10,122,697		8,503,160		39,485,299
Purchased loans with evidence of credit deterioration	64,280		57,963		10,978		133,221
Total	$	21,203,650	$	10,302,723	$	8,606,750	$	40,113,123

	December 31, 2014
(In thousands)	Commercial		Commercial real estate		Consumer		Total
Allowance for loan losses:
Individually evaluated for impairment	$	28,627	$	4,027	$	9,059	$	41,713
Collectively evaluated for impairment	382,552		140,090		37,508		560,150
Purchased loans with evidence of credit deterioration	1,335		892		573		2,800
Total	$	412,514	$	145,009	$	47,140	$	604,663
Outstanding loan balances:
Individually evaluated for impairment	$	259,207	$	167,435	$	95,267	$	521,909
Collectively evaluated for impairment	21,105,217		9,861,862		8,395,371		39,362,450
Purchased loans with evidence of credit deterioration	79,940		83,711		15,648		179,299
Total	$	21,444,364	$	10,113,008	$	8,506,286	$	40,063,658

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, 2015		December 31, 2014
Commercial:
Commercial and industrial	$	167,136	$	105,591
Leasing	306		295
Owner occupied	76,624		87,243
Municipal	967		1,056
Total commercial	245,033		194,185
Commercial real estate:
Construction and land development	15,202		23,880
Term	39,053		25,107
Total commercial real estate	54,255		48,987
Consumer:
Home equity credit line	9,792		11,430
1-4 family residential	48,592		49,861
Construction and other consumer real estate	765		1,735
Bankcard and other revolving plans	563		196
Other	272		254
Total consumer loans	59,984		63,476
Total	$	359,272	$	306,648

Past due loans (accruing and nonaccruing) are summarized as follows:
	September 30, 2015
(In thousands)	Current		30-89 days past due		90+ days past due		Total past due		Total loans		Accruing loans 90+ days past due		Nonaccrual loans that are current 1
Commercial:
Commercial and industrial	$	12,909,622	$	79,246	$	46,383	$	125,629	$	13,035,251	$	4,951	$	90,584
Leasing	423,071		3,557		153		3,710		426,781		—		55
Owner occupied	7,077,386		33,198		30,776		63,974		7,141,360		5,443		46,283
Municipal	600,210		48		—		48		600,258		—		967
Total commercial	21,010,289		116,049		77,312		193,361		21,203,650		10,394		137,889
Commercial real estate:
Construction and land development	2,195,193		12,447		5,825		18,272		2,213,465		2,296		10,914
Term	8,039,923		15,578		33,757		49,335		8,089,258		20,503		23,188
Total commercial real estate	10,235,116		28,025		39,582		67,607		10,302,723		22,799		34,102
Consumer:
Home equity credit line	2,336,740		4,694		5,627		10,321		2,347,061		—		2,592
1-4 family residential	5,231,005		10,137		27,698		37,835		5,268,840		877		18,739
Construction and other consumer real estate	364,283		5,524		208		5,732		370,015		—		401
Bankcard and other revolving plans	425,041		1,621		1,187		2,808		427,849		787		114
Other	192,042		877		66		943		192,985		—		46
Total consumer loans	8,549,111		22,853		34,786		57,639		8,606,750		1,664		21,892
Total	$	39,794,516	$	166,927	$	151,680	$	318,607	$	40,113,123	$	34,857	$	193,883

	December 31, 2014
(In thousands)	Current		30-89 days past due		90+ days past due		Total past due		Total loans		Accruing loans 90+ days past due		Nonaccrual loans that are current 1
Commercial:
Commercial and industrial	$	13,092,731	$	28,295	$	41,929	$	70,224	$	13,162,955	$	4,677	$	64,385
Leasing	408,724		225		25		250		408,974		—		270
Owner occupied	7,275,842		29,182		46,524		75,706		7,351,548		3,334		39,649
Municipal	520,887		—		—		—		520,887		—		1,056
Total commercial	21,298,184		57,702		88,478		146,180		21,444,364		8,011		105,360
Commercial real estate:
Construction and land development	1,972,206		2,711		11,491		14,202		1,986,408		92		12,481
Term	8,082,940		14,415		29,245		43,660		8,126,600		19,700		13,787
Total commercial real estate	10,055,146		17,126		40,736		57,862		10,113,008		19,792		26,268
Consumer:
Home equity credit line	2,309,967		4,503		6,680		11,183		2,321,150		1		1,779
1-4 family residential	5,163,610		12,416		24,856		37,272		5,200,882		318		20,599
Construction and other consumer real estate	359,723		9,675		1,144		10,819		370,542		160		608
Bankcard and other revolving plans	397,882		2,425		1,045		3,470		401,352		946		80
Other	211,560		644		156		800		212,360		—		84
Total consumer loans	8,442,742		29,663		33,881		63,544		8,506,286		1,425		23,150
Total	$	39,796,072	$	104,491	$	163,095	$	267,586	$	40,063,658	$	29,228	$	154,778

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 $750,000based 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, 2015
(In thousands)	Pass		Special Mention		Sub- standard		Doubtful		Total loans		Total allowance
Commercial:
Commercial and industrial	$	12,037,219	$	281,696	$	709,086	$	7,250	$	13,035,251
Leasing	400,233		3,015		23,533		—		426,781
Owner occupied	6,684,216		142,204		314,940		—		7,141,360
Municipal	599,243		48		967		—		600,258
Total commercial	19,720,911		426,963		1,048,526		7,250		21,203,650		$	427,697
Commercial real estate:
Construction and land development	2,166,381		19,138		27,946		—		2,213,465
Term	7,862,956		59,689		166,613		—		8,089,258
Total commercial real estate	10,029,337		78,827		194,559		—		10,302,723		122,269
Consumer:
Home equity credit line	2,333,240		—		13,821		—		2,347,061
1-4 family residential	5,214,015		—		54,825		—		5,268,840
Construction and other consumer real estate	368,363		—		1,652		—		370,015
Bankcard and other revolving plans	425,979		—		1,870		—		427,849
Other	192,564		—		421		—		192,985
Total consumer loans	8,534,161		—		72,589		—		8,606,750		46,474
Total	$	38,284,409	$	505,790	$	1,315,674	$	7,250	$	40,113,123	$	596,440

	December 31, 2014
(In thousands)	Pass		Special Mention		Sub- standard		Doubtful		Total loans		Total allowance
Commercial:
Commercial and industrial	$	12,515,846	$	209,215	$	426,002	$	11,892	$	13,162,955
Leasing	399,032		4,868		5,074		—		408,974
Owner occupied	6,844,310		168,423		338,815		—		7,351,548
Municipal	518,513		1,318		1,056		—		520,887
Total commercial	20,277,701		383,824		770,947		11,892		21,444,364		$	412,514
Commercial real estate:
Construction and land development	1,925,685		8,464		52,259		—		1,986,408
Term	7,802,571		96,347		223,324		4,358		8,126,600
Total commercial real estate	9,728,256		104,811		275,583		4,358		10,113,008		145,009
Consumer:
Home equity credit line	2,304,352		—		16,798		—		2,321,150
1-4 family residential	5,138,660		—		62,222		—		5,200,882
Construction and other consumer real estate	367,932		—		2,610		—		370,542
Bankcard and other revolving plans	399,446		—		1,906		—		401,352
Other	211,811		—		549		—		212,360
Total consumer loans	8,422,201		—		84,085		—		8,506,286		47,140
Total	$	38,428,158	$	488,635	$	1,130,615	$	16,250	$	40,063,658	$	604,663

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, or if the loan is no longer reported as a TDR, 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 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 endedSeptember 30, 2015 and 2014 was not significant.

Information on impaired loans individually evaluated is summarized as follows at September 30, 2015 and December 31, 2014, including the average recorded investment and interest income recognized for the three and nine months endedSeptember 30, 2015 and 2014:

	September 30, 2015
(In thousands)	Unpaid principal balance		Recorded investment				Total recorded investment		Related allowance
			with no allowance		with allowance
Commercial:
Commercial and industrial	$	245,404	$	37,843	$	156,665	$	194,508	$	26,888
Owner occupied	151,243		83,527		48,400		131,927		5,091
Municipal	1,446		967		—		967		—
Total commercial	398,093		122,337		205,065		327,402		31,979
Commercial real estate:
Construction and land development	47,876		7,486		23,800		31,286		1,068
Term	138,865		90,294		27,856		118,150		1,463
Total commercial real estate	186,741		97,780		51,656		149,436		2,531
Consumer:
Home equity credit line	28,358		20,672		4,703		25,375		419
1-4 family residential	72,855		29,257		40,465		69,722		10,090
Construction and other consumer real estate	2,966		1,069		1,106		2,175		181
Other	3,843		36		3,162		3,198		294
Total consumer loans	108,022		51,034		49,436		100,470		10,984
Total	$	692,856	$	271,151	$	306,157	$	577,308	$	45,494

	December 31, 2014
(In thousands)	Unpaid principal balance		Recorded investment				Total recorded investment		Related allowance
			with no allowance		with allowance
Commercial:
Commercial and industrial	$	185,520	$	43,257	$	103,565	$	146,822	$	22,852
Owner occupied	198,231		83,179		86,382		169,561		6,087
Municipal	1,535		1,056		—		1,056		—
Total commercial	385,286		127,492		189,947		317,439		28,939
Commercial real estate:
Construction and land development	60,993		16,500		26,977		43,477		1,773
Term	203,788		96,351		63,740		160,091		2,345
Total commercial real estate	264,781		112,851		90,717		203,568		4,118
Consumer:
Home equity credit line	30,209		14,798		11,883		26,681		437
1-4 family residential	86,575		37,096		35,831		72,927		8,494
Construction and other consumer real estate	3,902		1,449		1,410		2,859		233
Other	6,580		—		5,254		5,254		133
Total consumer loans	127,266		53,343		54,378		107,721		9,297
Total	$	777,333	$	293,686	$	335,042	$	628,728	$	42,354

	Three Months Ended September 30, 2015				Nine Months Ended September 30, 2015
(In thousands)	Average recorded investment		Interest income recognized		Average recorded investment		Interest income recognized
Commercial:
Commercial and industrial	$	191,642	$	1,314	$	158,825	$	5,525
Owner occupied	138,194		2,752		135,212		9,706
Municipal	978		—		1,007		—
Total commercial	330,814		4,066		295,044		15,231
Commercial real estate:
Construction and land development	31,506		499		31,920		2,691
Term	119,694		3,705		124,446		13,383
Total commercial real estate	151,200		4,204		156,366		16,074
Consumer:
Home equity credit line	25,095		401		24,329		1,206
1-4 family residential	90,240		398		91,671		1,803
Construction and other consumer real estate	5,540		32		2,342		91
Bankcard and other revolving plans	—		1		1		101
Other	36		177		4,109		692
Total consumer loans	120,911		1,009		122,452		3,893
Total	$	602,925	$	9,279	$	573,862	$	35,198

	Three Months Ended September 30, 2014				Nine Months Ended September 30, 2014
(In thousands)	Average recorded investment		Interest income recognized		Average recorded investment		Interest income recognized
Commercial:
Commercial and industrial	$	186,026	$	2,335	$	180,130	$	8,819
Owner occupied	232,484		4,514		235,380		13,774
Municipal	8,798		—		9,343		—
Total commercial	427,308		6,849		424,853		22,593
Commercial real estate:
Construction and land development	59,735		515		62,404		5,398
Term	225,536		5,670		248,587		26,118
Total commercial real estate	285,271		6,185		310,991		31,516
Consumer:
Home equity credit line	26,328		369		25,756		1,139
1-4 family residential	81,116		556		81,168		1,583
Construction and other consumer real estate	3,226		43		3,112		115
Bankcard and other revolving plans	—		1		3		2
Other	6,284		384		7,333		1,315
Total consumer loans	116,954		1,353		117,372		4,154
Total	$	829,533	$	14,387	$	853,216	$	58,263

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, 2015
	Recorded investment resulting from the following modification types:
(In thousands)	Interest rate below market		Maturity or term extension		Principal forgiveness		Payment deferral		Other1		Multiple modification types2		Total
Accruing
Commercial:
Commercial and industrial	$	455	$	3,906	$	14	$	108	$	223	$	35,228	$	39,934
Owner occupied	2,034		701		938		—		8,151		17,172		28,996
Total commercial	2,489		4,607		952		108		8,374		52,400		68,930
Commercial real estate:
Construction and land development	97		—		—		—		—		13,431		13,528
Term	4,758		766		170		975		2,409		20,825		29,903
Total commercial real estate	4,855		766		170		975		2,409		34,256		43,431
Consumer:
Home equity credit line	192		1,060		11,143		—		164		2,360		14,919
1-4 family residential	2,482		358		7,388		435		3,474		34,901		49,038
Construction and other consumer real estate	177		488		—		—		—		1,153		1,818
Total consumer loans	2,851		1,906		18,531		435		3,638		38,414		65,775
Total accruing	10,195		7,279		19,653		1,518		14,421		125,070		178,136
Nonaccruing
Commercial:
Commercial and industrial	90		471		—		2,018		5,351		37,950		45,880
Owner occupied	1,220		1,742		—		5,833		36		9,060		17,891
Municipal	—		967		—		—		—		—		967
Total commercial	1,310		3,180		—		7,851		5,387		47,010		64,738
Commercial real estate:
Construction and land development	10,512		354		—		—		3,197		968		15,031
Term	2,456		—		833		—		2,899		9,919		16,107
Total commercial real estate	12,968		354		833		—		6,096		10,887		31,138
Consumer:
Home equity credit line	8		514		512		58		—		48		1,140
1-4 family residential	—		268		2,085		173		1,227		7,325		11,078
Construction and other consumer real estate	—		143		18		60		—		72		293
Total consumer loans	8		925		2,615		291		1,227		7,445		12,511
Total nonaccruing	14,286		4,459		3,448		8,142		12,710		65,342		108,387
Total	$	24,481	$	11,738	$	23,101	$	9,660	$	27,131	$	190,412	$	286,523

	December 31, 2014
	Recorded investment resulting from the following modification types:
(In thousands)	Interest rate below market		Maturity or term extension		Principal forgiveness		Payment deferral		Other1		Multiple modification types2		Total
Accruing
Commercial:
Commercial and industrial	$	2,611	$	6,509	$	18	$	3,203	$	3,855	$	34,585	$	50,781
Owner occupied	19,981		1,124		960		1,251		10,960		17,505		51,781
Total commercial	22,592		7,633		978		4,454		14,815		52,090		102,562
Commercial real estate:
Construction and land development	—		—		—		—		521		19,854		20,375
Term	7,328		9,027		179		3,153		2,546		39,007		61,240
Total commercial real estate	7,328		9,027		179		3,153		3,067		58,861		81,615
Consumer:
Home equity credit line	742		70		11,320		—		166		1,281		13,579
1-4 family residential	2,425		552		6,828		446		753		34,719		45,723
Construction and other consumer real estate	290		422		42		90		—		1,227		2,071
Total consumer loans	3,457		1,044		18,190		536		919		37,227		61,373
Total accruing	33,377		17,704		19,347		8,143		18,801		148,178		245,550
Nonaccruing
Commercial:
Commercial and industrial	442		576		—		611		5,199		20,410		27,238
Owner occupied	2,714		1,219		—		883		2,852		12,040		19,708
Municipal	—		1,056		—		—		—		—		1,056
Total commercial	3,156		2,851		—		1,494		8,051		32,450		48,002
Commercial real estate:
Construction and land development	11,080		68		—		93		3,300		6,427		20,968
Term	2,851		—		—		—		277		4,607		7,735
Total commercial real estate	13,931		68		—		93		3,577		11,034		28,703
Consumer:
Home equity credit line	—		—		420		203		—		399		1,022
1-4 family residential	3,378		1,029		1,951		191		3,527		9,413		19,489
Construction and other consumer real estate	—		463		—		—		—		100		563
Total consumer loans	3,378		1,492		2,371		394		3,527		9,912		21,074
Total nonaccruing	20,465		4,411		2,371		1,981		15,155		53,396		97,779
Total	$	53,842	$	22,115	$	21,718	$	10,124	$	33,956	$	201,574	$	343,329

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.

Unfunded lending commitments on TDRs amounted to approximately $3.6 million at September 30, 2015 and $6.1 millionat December 31, 2014.

The total recorded investment of all TDRs in which interest rates were modified below market was $190.7 million at September 30, 2015 and $219.3 million at December 31, 2014. 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 September 30,						Nine Months Ended September 30,
(In thousands)	2015			2014			2015			2014
Commercial:
Commercial and industrial	$	(67	)	$	(36	)	$	(189	)	$	(34	)
Owner occupied	(46		)	(124		)	(230		)	(400		)
Total commercial	(113		)	(160		)	(419		)	(434		)
Commercial real estate:
Construction and land development	(26		)	(48		)	(88		)	(154		)
Term	(84		)	(150		)	(295		)	(435		)
Total commercial real estate	(110		)	(198		)	(383		)	(589		)
Consumer:
Home equity credit line	—			(1		)	(1		)	(4		)
1-4 family residential	(260		)	(276		)	(800		)	(863		)
Construction and other consumer real estate	(7		)	(8		)	(21		)	(25		)
Total consumer loans	(267		)	(285		)	(822		)	(892		)
Total decrease to interest income1	$	(490	)	$	(643	)	$	(1,624	)	$	(1,915	)

¹  Calculated 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 September 30, 2015						Nine Months Ended September 30, 2015
(In thousands)	Accruing		Nonaccruing		Total		Accruing		Nonaccruing		Total
Commercial:
Commercial and industrial	$	—	$	9	$	9	$	—	$	104	$	104
Owner occupied	—		—		—		—		943		943
Total commercial	—		9		9		—		1,047		1,047
Commercial real estate:
Construction and land development	—		—		—		—		—		—
Term	—		—		—		—		833		833
Total commercial real estate	—		—		—		—		833		833
Consumer:
Home equity credit line	—		—		—		—		—		—
1-4 family residential	—		595		595		—		595		595
Construction and other consumer real estate	—		—		—		—		—		—
Total consumer loans	—		595		595		—		595		595
Total	$	—	$	604	$	604	$	—	$	2,475	$	2,475

	Three Months Ended September 30, 2014						Nine Months Ended September 30, 2014
(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
Commercial real estate:
Construction and land development	—		—		—		—		—		—
Term	—		—		—		—		—		—
Total commercial real estate	—		—		—		—		—		—
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

Note: Total loans modified as TDRs during the 12 months previous to September 30, 2015 and 2014 were $93.4 millionand $97.3 million, respectively.

As of September 30, 2015, the amount of foreclosed residential real estate property held by the Company was approximately $1.6 million, and the recorded investment in consumer mortgage loans collateralized by residential real estate property that are in the process of foreclosure was approximately $9.3 million.

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, there are certain significant concentrations 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 and enterprise value lending, municipal lending, and energy-related lending. All of these limits are continually monitored and revised as necessary.

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.

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, 2015			December 31, 2014
Commercial		$	78,180		$	104,942
Commercial real estate		81,012			118,217
Consumer		12,204			17,910
Outstanding balance		$	171,396		$	241,069
Carrying amount		$	133,221		$	179,299
Less ALLL		1,205			2,800
Carrying amount, net		$	132,016		$	176,499

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. There were no amounts of these loans at September 30, 2015 and $5.3 million at December 31, 2014.

Changes in the accretable yield for PCI loans were as follows: 

(In thousands)	Three Months Ended September 30,						Nine Months Ended September 30,
	2015			2014			2015			2014
Balance at beginning of period	$	46,702		$	60,834		$	45,055		$	77,528
Accretion	(7,535		)	(10,279		)	(28,792		)	(46,767		)
Reclassification from nonaccretable difference	1,005			2,955			18,865			17,406
Disposals and other	1,126			(38		)	6,170			5,305
Balance at end of period	$	41,298		$	53,472		$	41,298		$	53,472

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 included in the overall ALLL in the balance sheet.

During the three and nine months endedSeptember 30, 2015, we adjusted the ALLL for acquired loans by recording a provision for loan losses of $0.8 million and $0.3 million, respectively. No adjustment was made during the three months endedSeptember 30, 2014 and $(2.5) million was made during the nine months endedSeptember 30, 2014. The provision is net of the ALLL reversals discussed subsequently.

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 endedSeptember 30, total reversals to the ALLL, including the impact of increases in estimated cash flows, were $0.6 million and $3.1 million in 2015 and $0.8 million and $4.4 million in 2014, 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.

For the three and nine months endedSeptember 30, the impact of increased cash flow estimates recognized in the statement of income for acquired loans with no ALLL was approximately $5.4 million and $22.1 million in 2015and $7.7 million and $37.9 million in 2014, respectively, of additional interest income.

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Debt And Shareholders' Equity

9 Months Ended

Sep. 30, 2015

Capitalization, Long-term Debt and Equity [Abstract]

Debt And Shareholders' Equity

DEBT AND SHAREHOLDERS’ EQUITY

Long-term debt is summarized as follows:

(In thousands)	September 30, 2015		December 31, 2014
Junior subordinated debentures related to trust preferred securities	$	164,950	$	168,043
Convertible subordinated notes	70,119		132,838
Subordinated notes	302,102		335,798
Senior notes	406,631		432,385
FHLB advances	—		22,156
Capital lease obligations	950		1,062
Total	$	944,752	$	1,092,282

The preceding carrying values 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 and Maturities

During the third quarter of 2015, approximately $109 million carrying value of 6.0% subordinated and convertible subordinated notes matured. During the first half of 2015, we redeemed approximately $27 million of long-term senior notes at their initial call dates, and we redeemed $3.1 million of trust preferred securities and the entire $22 million of FHLB advances; the FHLB redemption resulted in debt extinguishment cost of $2.4 million.

On November 16, 2015, approximately $122 million carrying value at September 30, 2015 of 5.5% subordinated and convertible subordinated notes will mature.

Preferred Stock

On October, 19 2015, we announced the commencement of a $180 million cash tender offer to purchase certain outstanding preferred stock and depositary shares. The tender offer will expire on November 16, 2015.

Basel III Capital Framework

Effective January 1, 2015, we adopted the new Basel III capital framework that was issued by the Federal Reserve for U.S. banking organizations. We adopted the new capital rules on a 2015 phase-in basis and will adopt the fully phased-in requirements effective January 1, 2019. During the first quarter of 2015, we made the “opt-out” election with respect to the regulatory capital treatment of AOCI under the Basel III framework.

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.

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, 2015
Balance at December 31, 2014		$	(91,921	)		$	2,226		$	(38,346	)	$	(128,041	)
Other comprehensive income before reclassifications, net of tax		15,398				13,035			—			28,433
Amounts reclassified from AOCI, net of tax		85,845				(3,212		)	—			82,633
Other comprehensive income		101,243				9,823			—			111,066
Balance at September 30, 2015		$	9,322			$	12,049		$	(38,346	)	$	(16,975	)
Income tax expense included in other comprehensive income		$	65,549			$	6,311		$	—		$	71,860
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

	Amounts reclassified from AOCI 1												Statement of income (SI) Balance sheet (BS)
(In thousands)	Three Months Ended September 30,						Nine Months Ended September 30,
Details about AOCI components	2015			2014			2015			2014				Affected line item
Net realized gains (losses) on investment securities	$	(53	)	$	(13,901	)	$	(138,728	)	$	22,039		SI	Fixed income securities gains (losses), net
Income tax expense (benefit)	(20		)	(6,015		)	(52,883		)	1,981
	(33		)	(7,886		)	(85,845		)	20,058
Net unrealized losses on investment securities	—			—			—			(27		)	SI	Net impairment losses on investment securities
Income tax benefit	—			—			—			(10		)
	—			—			—			(17		)
Accretion of securities with noncredit-related impairment losses not expected to be sold	—			(467		)	—			(1,411		)	BS	Investment securities, held-to-maturity
Deferred income taxes	—			191			—			576			BS	Other assets
	$	(33	)	$	(8,162	)	$	(85,845	)	$	19,206
Net unrealized gains on derivative instruments	$	2,957		$	770		$	5,191		$	1,698		SI	Interest and fees on loans
Income tax expense	1,127			307			1,979			677
	$	1,830		$	463		$	3,212		$	1,021

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.

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Fair Value (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Derivatives, Fair Value [Line Items]
Other noninterest-bearing investments valued under the cost method	$ 28,700		$ 28,700		$ 39,100
Federal Home Loan Bank Stock and Federal Reserve Bank Stock	220,200		220,200		250,700
Net gains on sale of OREO properties	40	$ (875)	111	$ (2,216)
Principal amount of other real estate owned property sold			13,100	30,700
OREO Properties [Member]
Derivatives, Fair Value [Line Items]
Net gains on sale of OREO properties	800	$ 1,900	2,700	4,400
Impairment of OREO properties			(400)	$ (500)
Level 2 [Member]
Derivatives, Fair Value [Line Items]
Fair value of AFS securities	5,981,502		5,981,502		3,336,943
Level 3 [Member]
Derivatives, Fair Value [Line Items]
Fair value of AFS securities	0		0		$ 401,957
Third Party Pricing Service [Member] | Level 2 [Member]
Derivatives, Fair Value [Line Items]
Fair value of AFS securities	$ 0		$ 0
Trust Preferred Predominantly Banks [Member] | Minimum [Member]
Derivatives, Fair Value [Line Items]
Significant Unobservable Inputs, Loss Given Deferral Rate			11.90%		14.50%
Discount Rate Range Of Libor Utilized For Fair Value Purposes			3.70%		3.40%
Trust Preferred Predominantly Banks [Member] | Maximum [Member]
Derivatives, Fair Value [Line Items]
Significant Unobservable Inputs, Loss Given Deferral Rate			100.00%		100.00%
Discount Rate Range Of Libor Utilized For Fair Value Purposes			5.40%		5.60%
Constant Prepayment Rate Until Maturity [Member] | Trust Preferred Predominantly Banks [Member]
Derivatives, Fair Value [Line Items]
Assumption for Fair Value of Assets or Liabilities that relate to Transferor's Continuing Involvement, Prepayment Speed			2.00%		2.00%

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Fair Value (Schedule Of Key Model Inputs And Assumptions Used To Fair Value Certain Asset-Backed Securities) (Details) - Trust Preferred Predominantly Banks [Member]	9 Months Ended	12 Months Ended
	Sep. 30, 2015	Dec. 31, 2014
Asset-Backed Securities [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%
Constant Default Rate Year 1 [Member] | Minimum [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] | Maximum [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%	0.80%
Constant Default Rate Year 2 to 5 [Member] | Minimum [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%	0.50%
Constant Default Rate Year 2 to 5 [Member] | Maximum [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	0.70%	0.90%
Constant Default Rate Year 6 to Maturity [Member] | Minimum [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%	0.60%
Constant Default Rate Year 6 to Maturity [Member] | Maximum [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	0.70%	0.70%
Constant Default Rate Until 2016 [Member] | Minimum [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
Constant Default Rate Until 2016 [Member] | Maximum [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

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Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Effective Income Tax Rate Reconciliation, Percent	28.76%	35.64%	32.01%	36.14%
Deferred Tax Assets, Net	$ 201		$ 201		$ 224

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Basis of Presentaion (Details)	Sep. 30, 2015 States
Basis Of Presentation [Abstract]
Number of States in which Entity Operates	11

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Loans And Allowance For Credit Losses (Summary Of Information On Impaired Loans) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Consumer, Home Equity	$ 2,347,061		$ 2,347,061		$ 2,321,150
Unpaid principal balance	692,856		692,856		777,333
Recorded investment	577,308		577,308		628,728
Impaired Financing Receivable, Related Allowance	45,494		45,494		42,354
Average recorded investment	602,925	$ 829,533	573,862	$ 853,216
Interest income recognized	9,279	14,387	35,198	58,263
Commercial and Industrial Sector [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	245,404		245,404		185,520
Recorded investment	194,508		194,508		146,822
Impaired Financing Receivable, Related Allowance	26,888		26,888		22,852
Average recorded investment	191,642	186,026	158,825	180,130
Interest income recognized	1,314	2,335	5,525	8,819
Owner Occupied [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	151,243		151,243		198,231
Recorded investment	131,927		131,927		169,561
Impaired Financing Receivable, Related Allowance	5,091		5,091		6,087
Average recorded investment	138,194	232,484	135,212	235,380
Interest income recognized	2,752	4,514	9,706	13,774
Municipal [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	1,446		1,446		1,535
Recorded investment	967		967		1,056
Impaired Financing Receivable, Related Allowance	0		0		0
Average recorded investment	978	8,798	1,007	9,343
Interest income recognized	0	0	0	0
Commercial Loan [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	398,093		398,093		385,286
Recorded investment	327,402		327,402		317,439
Impaired Financing Receivable, Related Allowance	31,979		31,979		28,939
Average recorded investment	330,814	427,308	295,044	424,853
Interest income recognized	4,066	6,849	15,231	22,593
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	47,876		47,876		60,993
Recorded investment	31,286		31,286		43,477
Impaired Financing Receivable, Related Allowance	1,068		1,068		1,773
Average recorded investment	31,506	59,735	31,920	62,404
Interest income recognized	499	515	2,691	5,398
Term [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	138,865		138,865		203,788
Recorded investment	118,150		118,150		160,091
Impaired Financing Receivable, Related Allowance	1,463		1,463		2,345
Average recorded investment	119,694	225,536	124,446	248,587
Interest income recognized	3,705	5,670	13,383	26,118
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	186,741		186,741		264,781
Recorded investment	149,436		149,436		203,568
Impaired Financing Receivable, Related Allowance	2,531		2,531		4,118
Average recorded investment	151,200	285,271	156,366	310,991
Interest income recognized	4,204	6,185	16,074	31,516
Home Equity Line of Credit [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	28,358		28,358		30,209
Recorded investment	25,375		25,375		26,681
Impaired Financing Receivable, Related Allowance	419		419		437
Average recorded investment	25,095	26,328	24,329	25,756
Interest income recognized	401	369	1,206	1,139
Consumer Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Consumer, Home Equity	2,347,061		2,347,061		2,321,150
Unpaid principal balance	3,843		3,843		6,580
Recorded investment	3,198		3,198		5,254
Impaired Financing Receivable, Related Allowance	294		294		133
Average recorded investment	36	6,284	4,109	7,333
Interest income recognized	177	384	692	1,315
One Through Four Family Residential [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	72,855		72,855		86,575
Recorded investment	69,722		69,722		72,927
Impaired Financing Receivable, Related Allowance	10,090		10,090		8,494
Average recorded investment	90,240	81,116	91,671	81,168
Interest income recognized	398	556	1,803	1,583
Construction And Other Consumer Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	2,966		2,966		3,902
Recorded investment	2,175		2,175		2,859
Impaired Financing Receivable, Related Allowance	181		181		233
Average recorded investment	5,540	3,226	2,342	3,112
Interest income recognized	32	43	91	115
Revolving Credit Facility [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Average recorded investment	0	0	1	3
Interest income recognized	1	1	101	2
Consumer Loan [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	108,022		108,022		127,266
Recorded investment	100,470		100,470		107,721
Impaired Financing Receivable, Related Allowance	10,984		10,984		9,297
Average recorded investment	120,911	116,954	122,452	117,372
Interest income recognized	1,009	$ 1,353	3,893	$ 4,154
Impaired Financing Receivable Related Allowance [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Recorded investment	306,157		306,157		335,042
Impaired Financing Receivable Related Allowance [Member] | Commercial and Industrial Sector [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Recorded investment	156,665		156,665		103,565
Impaired Financing Receivable Related Allowance [Member] | Owner Occupied [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Recorded investment	48,400		48,400		86,382
Impaired Financing Receivable Related Allowance [Member] | Municipal [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Recorded investment	0		0		0
Impaired Financing Receivable Related Allowance [Member] | Commercial Loan [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Recorded investment	205,065		205,065		189,947
Impaired Financing Receivable Related Allowance [Member] | Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Recorded investment	23,800		23,800		26,977
Impaired Financing Receivable Related Allowance [Member] | Term [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Recorded investment	27,856		27,856		63,740
Impaired Financing Receivable Related Allowance [Member] | Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Recorded investment	51,656		51,656		90,717
Impaired Financing Receivable Related Allowance [Member] | Home Equity Line of Credit [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Recorded investment	4,703		4,703		11,883
Impaired Financing Receivable Related Allowance [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Recorded investment	3,162		3,162		5,254
Impaired Financing Receivable Related Allowance [Member] | One Through Four Family Residential [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Recorded investment	40,465		40,465		35,831
Impaired Financing Receivable Related Allowance [Member] | Construction And Other Consumer Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Recorded investment	1,106		1,106		1,410
Impaired Financing Receivable Related Allowance [Member] | Consumer Loan [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Recorded investment	49,436		49,436		54,378
Impaired Financing Receivable Recorded Investment With No Allowance [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Recorded investment	271,151		271,151		293,686
Impaired Financing Receivable Recorded Investment With No Allowance [Member] | Commercial and Industrial Sector [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Recorded investment	37,843		37,843		43,257
Impaired Financing Receivable Recorded Investment With No Allowance [Member] | Owner Occupied [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Recorded investment	83,527		83,527		83,179
Impaired Financing Receivable Recorded Investment With No Allowance [Member] | Municipal [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Recorded investment	967		967		1,056
Impaired Financing Receivable Recorded Investment With No Allowance [Member] | Commercial Loan [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Recorded investment	122,337		122,337		127,492
Impaired Financing Receivable Recorded Investment With No Allowance [Member] | Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Recorded investment	7,486		7,486		16,500
Impaired Financing Receivable Recorded Investment With No Allowance [Member] | Term [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Recorded investment	90,294		90,294		96,351
Impaired Financing Receivable Recorded Investment With No Allowance [Member] | Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Recorded investment	97,780		97,780		112,851
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	20,672		20,672		14,798
Impaired Financing Receivable Recorded Investment With No Allowance [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Recorded investment	36		36		0
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	29,257		29,257		37,096
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	1,069		1,069		1,449
Impaired Financing Receivable Recorded Investment With No Allowance [Member] | Consumer Loan [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Recorded investment	$ 51,034		$ 51,034		$ 53,343

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Operating Segment Information

9 Months Ended

Sep. 30, 2015

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, 2015, we operate seven community/regional banks in distinct geographical areas. Performance assessment and resource allocation are based upon this geographical structure. Zions Bank operates 99 branches in Utah, 24 branches in Idaho, and one branch in Wyoming. Amegy operates 77 branches in Texas. CB&T operates 94 branches in California. NBAZ operates 66 branches in Arizona. NSB operates 49 branches in Nevada. Vectra operates 36 branches in Colorado and one branch in New Mexico. TCBW operates one branch in Washington and one branch in Oregon. Effective April 1, 2015, TCBO was merged into TCBW. Note 1 discusses the approval to merge the Company’s seven subsidiary banks into Zions Bank following the close of business on December 31, 2015. This consolidation will affect the presentation of segment reporting, although certain geographical information will continue.

The operating segment identified as “Other” includes the Parent, Zions Management Services Company (“ZMSC”), certain nonbank financial service subsidiaries, 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. 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, 2015 and 2014:

(In millions)	Zions Bank						Amegy						CB&T						NBAZ						NSB
	2015			2014			2015			2014			2015			2014			2015			2014			2015			2014
CONDENSED INCOME STATEMENT
Net interest income	$	145.9		$	146.7		$	99.9		$	95.8		$	95.0		$	98.9		$	40.4		$	40.3		$	27.6		$	28.4
Provision for loan losses	(5.7		)	(27.7		)	31.8			(3.5		)	1.1			(10.1		)	(2.4		)	(4.5		)	(3.7		)	(4.9		)
Net interest income after provision for loan losses	151.6			174.4			68.1			99.3			93.9			109.0			42.8			44.8			31.3			33.3
Noninterest income	50.4			44.8			33.4			39.4			18.6			17.5			9.9			9.6			9.4			9.6
Noninterest expense	128.8			123.4			90.2			79.1			70.6			77.1			35.8			33.2			32.3			31.8
Income before income taxes	73.2			95.8			11.3			59.6			41.9			49.4			16.9			21.2			8.4			11.1
Income taxes (benefit)	26.4			35.4			3.5			20.4			16.4			19.1			2.6			7.9			2.8			3.7
Net income (loss)	46.8			60.4			7.8			39.2			25.5			30.3			14.3			13.3			5.6			7.4
Net income (loss) applicable to noncontrolling interests	0.6			—			—			—			—			—			—			—			—			—
Net income (loss) applicable to controlling interest	$	46.2		$	60.4		$	7.8		$	39.2		$	25.5		$	30.3		$	14.3		$	13.3		$	5.6		$	7.4
AVERAGE BALANCE SHEET DATA
Total assets	$	18,437		$	18,083		$	13,901		$	13,861		$	11,846		$	11,252		$	5,018		$	4,710		$	4,354		$	4,074
Cash and due from banks	241			322			101			172			88			134			43			70			70			94
Money market investments	2,064			3,083			2,230			2,555			1,944			1,577			441			401			961			741
Total securities	3,211			1,814			319			266			538			258			535			380			864			799
Total loans	12,200			12,312			10,078			9,721			8,532			8,520			3,799			3,660			2,321			2,318
Total deposits	15,944			15,827			11,411			11,382			10,181			9,592			4,360			4,081			3,951			3,670
Shareholder’s equity:
Preferred equity	280			280			226			226			162			162			85			85			50			50
Common equity	1,689			1,578			1,967			1,903			1,415			1,386			500			465			326			330
Noncontrolling interests	17			—			—			—			—			—			—			—			—			—
Total shareholder’s equity	1,986			1,858			2,193			2,129			1,577			1,548			585			550			376			380
	Vectra						TCBW						Other						Consolidated Company
	2015			2014			2015			2014			2015			2014			2015			2014
CONDENSED INCOME STATEMENT
Net interest income	$	25.5		$	25.4		$	7.5		$	8.3		$	(16.4	)	$	(27.1	)	$	425.4		$	416.7
Provision for loan losses	(1.6		)	(3.2		)	(1.2		)	(0.7		)	—			(0.1		)	18.3			(54.7		)
Net interest income after provision for loan losses	27.1			28.6			8.7			9.0			(16.4		)	(27.0		)	407.1			471.4
Noninterest income	5.8			6.0			1.1			1.1			2.2			(12.0		)	130.8			116.0
Noninterest expense	24.7			24.2			5.3			5.7			8.4			64.0			396.1			438.5
Income (loss) before income taxes	8.2			10.4			4.5			4.4			(22.6		)	(103.0		)	141.8			148.9
Income taxes (benefit)	2.7			3.6			1.5			1.5			(15.1		)	(38.5		)	40.8			53.1
Net income (loss)	5.5			6.8			3.0			2.9			(7.5		)	(64.5		)	101.0			95.8
Net income (loss) applicable to noncontrolling interests	—			—			—			—			(0.6		)	—			—			—
Net income (loss) applicable to controlling interest	$	5.5		$	6.8		$	3.0		$	2.9		$	(6.9	)	$	(64.5	)	$	101.0		$	95.8
AVERAGE BALANCE SHEET DATA
Total assets	$	3,246		$	2,751		$	1,058		$	977		$	546		$	420		$	58,406		$	56,128
Cash and due from banks	26			41			29			34			(14		)	(9		)	584			858
Money market investments	514			174			227			140			395			(178		)	8,776			8,493
Total securities	247			152			86			78			56			300			5,856			4,047
Total loans	2,397			2,319			702			712			(4		)	5			40,025			39,567
Total deposits	2,834			2,339			906			827			(668		)	(1,427		)	48,919			46,291
Shareholder’s equity:
Preferred equity	25			26			3			3			173			172			1,004			1,004
Common equity	324			307			111			107			324			145			6,656			6,221
Noncontrolling interests	—			—			—			—			(17		)	—			—			—
Total shareholder’s equity	349			333			114			110			480			317			7,660			7,225

The following schedule presents selected operating segment information for the nine months ended September 30, 2015 and 2014:

(In millions)	Zions Bank						Amegy						CB&T						NBAZ					NSB
	2015			2014			2015			2014			2015			2014			2015		2014			2015			2014
CONDENSED INCOME STATEMENT
Net interest income	$	431.2		$	434.8		$	291.6		$	285.9		$	289.4		$	311.8		$	119.7	$	120.9		$	83.9		$	84.6
Provision for loan losses	(18.7		)	(51.8		)	56.9			5.9			(6.5		)	(25.1		)	1.0		(15.5		)	(15.4		)	(13.2		)
Net interest income after provision for loan losses	449.9			486.6			234.7			280.0			295.9			336.9			118.7		136.4			99.3			97.8
Noninterest income 1	90.6			139.0			101.2			107.7			56.5			37.1			29.2		26.2			26.8			23.4
Noninterest expense	385.5			366.0			280.9			258.6			224.4			244.8			109.5		109.4			98.0			97.9
Income before income taxes	155.0			259.6			55.0			129.1			128.0			129.2			38.4		53.2			28.1			23.3
Income taxes (benefit)	54.4			95.4			17.2			43.6			50.0			50.2			10.0		19.7			9.4			7.7
Net income (loss)	100.6			164.2			37.8			85.5			78.0			79.0			28.4		33.5			18.7			15.6
Net income (loss) applicable to noncontrolling interests	2.0			—			—			—			—			—			—		—			—			—
Net income (loss) applicable to controlling interest	$	98.6		$	164.2		$	37.8		$	85.5		$	78.0		$	79.0		$	28.4	$	33.5		$	18.7		$	15.6
AVERAGE BALANCE SHEET DATA
Total assets	$	18,628		$	17,983		$	13,846		$	13,650		$	11,578		$	11,063		$	4,929	$	4,673		$	4,277		$	4,046
Cash and due from banks	263			332			127			235			88			152			45		72			72			88
Money market investments	2,664			3,101			2,086			2,498			1,794			1,321			413		368			861			735
Total securities	2,827			1,720			295			256			434			274			466		372			854			789
Total loans	12,184			12,292			10,170			9,550			8,502			8,571			3,803		3,668			2,354			2,314
Total deposits	16,186			15,709			11,362			11,217			9,917			9,421			4,277		4,016			3,870			3,648
Shareholder’s equity:
Preferred equity	280			280			226			202			162			162			85		101			50			50
Common equity	1,654			1,556			1,953			1,875			1,405			1,368			492		447			330			324
Noncontrolling interests	13			—			—			—			—			—			—		—			—			—
Total shareholder’s equity	1,947			1,836			2,179			2,077			1,567			1,530			577		548			380			374
	Vectra						TCBW						Other						Consolidated Company
	2015			2014			2015			2014			2015			2014			2015		2014
CONDENSED INCOME STATEMENT
Net interest income	$	77.6		$	76.1		$	22.6		$	24.0		$	(49.6	)	$	(88.6	)	$	1,266.4	$	1,249.5
Provision for loan losses	1.9			(9.5		)	(1.8		)	(0.4		)	(0.1		)	(0.1		)	17.3		(109.7		)
Net interest income after provision for loan losses	75.7			85.6			24.4			24.4			(49.5		)	(88.5		)	1,249.1		1,359.2
Noninterest income 1	15.6			15.7			3.3			1.4			(70.1		)	28.7			253.1		379.2
Noninterest expense	73.0			73.2			11.6			17.1			14.8			75.6			1,197.7		1,242.6
Income (loss) before income taxes	18.3			28.1			16.1			8.7			(134.4		)	(135.4		)	304.5		495.8
Income taxes (benefit)	5.8			9.7			5.5			3.0			(54.8		)	(50.1		)	97.5		179.2
Net income (loss)	12.5			18.4			10.6			5.7			(79.6		)	(85.3		)	207.0		316.6
Net income (loss) applicable to noncontrolling interests	—			—			—			—			(2.0		)	—			—		—
Net income (loss) applicable to controlling interest	$	12.5		$	18.4		$	10.6		$	5.7		$	(77.6	)	$	(85.3	)	$	207.0	$	316.6
AVERAGE BALANCE SHEET DATA
Total assets	$	3,154		$	2,639		$	1,007		$	957		$	154		$	524		$	57,573	$	55,535
Cash and due from banks	28			45			33			28			(17		)	(14		)	639		938
Money market investments	459			70			166			122			(39		)	(168		)	8,404		8,047
Total securities	221			158			82			84			120			409			5,299		4,062
Total loans	2,385			2,305			712			710			1			4			40,111		39,414
Total deposits	2,745			2,231			863			809			(1,039		)	(1,205		)	48,181		45,846
Shareholder’s equity:
Preferred equity	25			46			3			3			173			160			1,004		1,004
Common equity	320			279			107			105			258			(98		)	6,519		5,856
Noncontrolling interests	—			—			—			—			(13		)	—			—		—
Total shareholder’s equity	345			325			110			108			418			62			7,523		6,860

¹  Includes loss on sale of CDOs in the second quarter of 2015 of (in millions) $62.5 (Zions Bank), $0.6 (NSB), $0.6 (Vectra) and $73.1 (Other).

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Loans And Allowance For Credit Losses (Tables)

9 Months Ended

Sep. 30, 2015

Accounts, Notes, Loans and Financing Receivable [Line Items]

Quantitative Information about Transferred Financial Assets that have been Derecognized and Other Financial Assets Managed Together [Table Text Block]

(In billions)	September 30, 2015		December 31, 2014
Loan Servicing Assets	$	1.2	$	1.2

Summary Of Major Portfolio Segment And Specific Loan Class

(In thousands)	September 30, 2015		December 31, 2014
Loans held for sale	$	139,122	$	132,504
Commercial:
Commercial and industrial	$	13,035,251	$	13,162,955
Leasing	426,781		408,974
Owner occupied	7,141,360		7,351,548
Municipal	600,258		520,887
Total commercial	21,203,650		21,444,364
Commercial real estate:
Construction and land development	2,213,465		1,986,408
Term	8,089,258		8,126,600
Total commercial real estate	10,302,723		10,113,008
Consumer:
Home equity credit line	2,347,061		2,321,150
1-4 family residential	5,268,840		5,200,882
Construction and other consumer real estate	370,015		370,542
Bankcard and other revolving plans	427,849		401,352
Other	192,985		212,360
Total consumer	8,606,750		8,506,286
Total loans	$	40,113,123	$	40,063,658

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, 2015
(In thousands)	Commercial			Commercial real estate			Consumer			Total
Allowance for loan losses
Balance at beginning of period	$	437,770		$	125,796		$	45,809		$	609,375
Additions:
Provision for loan losses	22,417			(6,621		)	2,466			18,262
Adjustment for FDIC-supported/PCI loans	—			—			—			—
Deductions:
Gross loan and lease charge-offs	(36,961		)	(1,068		)	(4,330		)	(42,359		)
Recoveries	4,471			4,162			2,529			11,162
Net loan and lease charge-offs	(32,490		)	3,094			(1,801		)	(31,197		)
Balance at end of period	$	427,697		$	122,269		$	46,474		$	596,440
Reserve for unfunded lending commitments
Balance at beginning of period	$	60,774		$	18,639		$	548		$	79,961
Provision charged (credited) to earnings	2,808			(1,467		)	87			1,428
Balance at end of period	$	63,582		$	17,172		$	635		$	81,389
Total allowance for credit losses at end of period
Allowance for loan losses	$	427,697		$	122,269		$	46,474		$	596,440
Reserve for unfunded lending commitments	63,582			17,172			635			81,389
Total allowance for credit losses	$	491,279		$	139,441		$	47,109		$	677,829

	Nine Months Ended September 30, 2015
(In thousands)	Commercial			Commercial real estate			Consumer			Total
Allowance for loan losses
Balance at beginning of period	$	412,514		$	145,009		$	47,140		$	604,663
Additions:
Provision for loan losses	53,292			(38,491		)	2,533			17,334
Adjustment for FDIC-supported/PCI loans	(57		)	57			—			—
Deductions:
Gross loan and lease charge-offs	(76,734		)	(5,637		)	(11,224		)	(93,595		)
Recoveries	38,682			21,331			8,025			68,038
Net loan and lease charge-offs	(38,052		)	15,694			(3,199		)	(25,557		)
Balance at end of period	$	427,697		$	122,269		$	46,474		$	596,440
Reserve for unfunded lending commitments
Balance at beginning of period	$	58,931		$	21,517		$	628		$	81,076
Provision charged (credited) to earnings	4,651			(4,345		)	7			313
Balance at end of period	$	63,582		$	17,172		$	635		$	81,389
Total allowance for credit losses at end of period
Allowance for loan losses	$	427,697		$	122,269		$	46,474		$	596,440
Reserve for unfunded lending commitments	63,582			17,172			635			81,389
Total allowance for credit losses	$	491,279		$	139,441		$	47,109		$	677,829

	Three Months Ended September 30, 2014
(In thousands)	Commercial			Commercial real estate			Consumer			Total
Allowance for loan losses
Balance at beginning of period	$	442,965		$	187,940		$	45,002		$	675,907
Additions:
Provision for loan losses	(19,960		)	(34,187		)	(496		)	(54,643		)
Adjustment for FDIC-supported/PCI loans	(25		)	—			—			(25		)
Deductions:
Gross loan and lease charge-offs	(20,084		)	(3,320		)	(3,067		)	(26,471		)
Recoveries	9,149			3,332			3,028			15,509
Net loan and lease charge-offs	(10,935		)	12			(39		)	(10,962		)
Balance at end of period	$	412,045		$	153,765		$	44,467		$	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	$	412,045		$	153,765		$	44,467		$	610,277
Reserve for unfunded lending commitments	54,452			24,299			626			79,377
Total allowance for credit losses	$	466,497		$	178,064		$	45,093		$	689,654

	Nine Months Ended September 30, 2014
(In thousands)	Commercial			Commercial real estate			Consumer			Total
Allowance for loan losses
Balance at beginning of period	$	469,213		$	216,012		$	61,066		$	746,291
Additions:
Provision for loan losses	(38,274		)	(57,350		)	(14,045		)	(109,669		)
Adjustment for FDIC-supported/PCI loans	(1,190		)	—			(96		)	(1,286		)
Deductions:
Gross loan and lease charge-offs	(45,903		)	(14,135		)	(10,628		)	(70,666		)
Recoveries	28,199			9,238			8,170			45,607
Net loan and lease charge-offs	(17,704		)	(4,897		)	(2,458		)	(25,059		)
Balance at end of period	$	412,045		$	153,765		$	44,467		$	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	$	412,045		$	153,765		$	44,467		$	610,277
Reserve for unfunded lending commitments	54,452			24,299			626			79,377
Total allowance for credit losses	$	466,497		$	178,064		$	45,093		$	689,654

The ALLL and outstanding loan balances according to the Company’s impairment method are summarized as follows:
	September 30, 2015
(In thousands)	Commercial		Commercial real estate		Consumer		Total
Allowance for loan losses:
Individually evaluated for impairment	$	32,191	$	2,898	$	11,014	$	46,103
Collectively evaluated for impairment	394,836		119,286		35,010		549,132
Purchased loans with evidence of credit deterioration	670		85		450		1,205
Total	$	427,697	$	122,269	$	46,474	$	596,440
Outstanding loan balances:
Individually evaluated for impairment	$	279,928	$	122,063	$	92,612	$	494,603
Collectively evaluated for impairment	20,859,442		10,122,697		8,503,160		39,485,299
Purchased loans with evidence of credit deterioration	64,280		57,963		10,978		133,221
Total	$	21,203,650	$	10,302,723	$	8,606,750	$	40,113,123

Summary Of Nonaccrual Loans

Nonaccrual loans are summarized as follows:
(In thousands)	September 30, 2015		December 31, 2014
Commercial:
Commercial and industrial	$	167,136	$	105,591
Leasing	306		295
Owner occupied	76,624		87,243
Municipal	967		1,056
Total commercial	245,033		194,185
Commercial real estate:
Construction and land development	15,202		23,880
Term	39,053		25,107
Total commercial real estate	54,255		48,987
Consumer:
Home equity credit line	9,792		11,430
1-4 family residential	48,592		49,861
Construction and other consumer real estate	765		1,735
Bankcard and other revolving plans	563		196
Other	272		254
Total consumer loans	59,984		63,476
Total	$	359,272	$	306,648

Summary Of Past Due Loans (Accruing And Nonaccruing)

Past due loans (accruing and nonaccruing) are summarized as follows:
	September 30, 2015
(In thousands)	Current		30-89 days past due		90+ days past due		Total past due		Total loans		Accruing loans 90+ days past due		Nonaccrual loans that are current 1
Commercial:
Commercial and industrial	$	12,909,622	$	79,246	$	46,383	$	125,629	$	13,035,251	$	4,951	$	90,584
Leasing	423,071		3,557		153		3,710		426,781		—		55
Owner occupied	7,077,386		33,198		30,776		63,974		7,141,360		5,443		46,283
Municipal	600,210		48		—		48		600,258		—		967
Total commercial	21,010,289		116,049		77,312		193,361		21,203,650		10,394		137,889
Commercial real estate:
Construction and land development	2,195,193		12,447		5,825		18,272		2,213,465		2,296		10,914
Term	8,039,923		15,578		33,757		49,335		8,089,258		20,503		23,188
Total commercial real estate	10,235,116		28,025		39,582		67,607		10,302,723		22,799		34,102
Consumer:
Home equity credit line	2,336,740		4,694		5,627		10,321		2,347,061		—		2,592
1-4 family residential	5,231,005		10,137		27,698		37,835		5,268,840		877		18,739
Construction and other consumer real estate	364,283		5,524		208		5,732		370,015		—		401
Bankcard and other revolving plans	425,041		1,621		1,187		2,808		427,849		787		114
Other	192,042		877		66		943		192,985		—		46
Total consumer loans	8,549,111		22,853		34,786		57,639		8,606,750		1,664		21,892
Total	$	39,794,516	$	166,927	$	151,680	$	318,607	$	40,113,123	$	34,857	$	193,883

	December 31, 2014
(In thousands)	Current		30-89 days past due		90+ days past due		Total past due		Total loans		Accruing loans 90+ days past due		Nonaccrual loans that are current 1
Commercial:
Commercial and industrial	$	13,092,731	$	28,295	$	41,929	$	70,224	$	13,162,955	$	4,677	$	64,385
Leasing	408,724		225		25		250		408,974		—		270
Owner occupied	7,275,842		29,182		46,524		75,706		7,351,548		3,334		39,649
Municipal	520,887		—		—		—		520,887		—		1,056
Total commercial	21,298,184		57,702		88,478		146,180		21,444,364		8,011		105,360
Commercial real estate:
Construction and land development	1,972,206		2,711		11,491		14,202		1,986,408		92		12,481
Term	8,082,940		14,415		29,245		43,660		8,126,600		19,700		13,787
Total commercial real estate	10,055,146		17,126		40,736		57,862		10,113,008		19,792		26,268
Consumer:
Home equity credit line	2,309,967		4,503		6,680		11,183		2,321,150		1		1,779
1-4 family residential	5,163,610		12,416		24,856		37,272		5,200,882		318		20,599
Construction and other consumer real estate	359,723		9,675		1,144		10,819		370,542		160		608
Bankcard and other revolving plans	397,882		2,425		1,045		3,470		401,352		946		80
Other	211,560		644		156		800		212,360		—		84
Total consumer loans	8,442,742		29,663		33,881		63,544		8,506,286		1,425		23,150
Total	$	39,796,072	$	104,491	$	163,095	$	267,586	$	40,063,658	$	29,228	$	154,778

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, 2015
(In thousands)	Pass		Special Mention		Sub- standard		Doubtful		Total loans		Total allowance
Commercial:
Commercial and industrial	$	12,037,219	$	281,696	$	709,086	$	7,250	$	13,035,251
Leasing	400,233		3,015		23,533		—		426,781
Owner occupied	6,684,216		142,204		314,940		—		7,141,360
Municipal	599,243		48		967		—		600,258
Total commercial	19,720,911		426,963		1,048,526		7,250		21,203,650		$	427,697
Commercial real estate:
Construction and land development	2,166,381		19,138		27,946		—		2,213,465
Term	7,862,956		59,689		166,613		—		8,089,258
Total commercial real estate	10,029,337		78,827		194,559		—		10,302,723		122,269
Consumer:
Home equity credit line	2,333,240		—		13,821		—		2,347,061
1-4 family residential	5,214,015		—		54,825		—		5,268,840
Construction and other consumer real estate	368,363		—		1,652		—		370,015
Bankcard and other revolving plans	425,979		—		1,870		—		427,849
Other	192,564		—		421		—		192,985
Total consumer loans	8,534,161		—		72,589		—		8,606,750		46,474
Total	$	38,284,409	$	505,790	$	1,315,674	$	7,250	$	40,113,123	$	596,440

	December 31, 2014
(In thousands)	Pass		Special Mention		Sub- standard		Doubtful		Total loans		Total allowance
Commercial:
Commercial and industrial	$	12,515,846	$	209,215	$	426,002	$	11,892	$	13,162,955
Leasing	399,032		4,868		5,074		—		408,974
Owner occupied	6,844,310		168,423		338,815		—		7,351,548
Municipal	518,513		1,318		1,056		—		520,887
Total commercial	20,277,701		383,824		770,947		11,892		21,444,364		$	412,514
Commercial real estate:
Construction and land development	1,925,685		8,464		52,259		—		1,986,408
Term	7,802,571		96,347		223,324		4,358		8,126,600
Total commercial real estate	9,728,256		104,811		275,583		4,358		10,113,008		145,009
Consumer:
Home equity credit line	2,304,352		—		16,798		—		2,321,150
1-4 family residential	5,138,660		—		62,222		—		5,200,882
Construction and other consumer real estate	367,932		—		2,610		—		370,542
Bankcard and other revolving plans	399,446		—		1,906		—		401,352
Other	211,811		—		549		—		212,360
Total consumer loans	8,422,201		—		84,085		—		8,506,286		47,140
Total	$	38,428,158	$	488,635	$	1,130,615	$	16,250	$	40,063,658	$	604,663

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, 2015
(In thousands)	Commercial		Commercial real estate		Consumer		Total
Allowance for loan losses:
Individually evaluated for impairment	$	32,191	$	2,898	$	11,014	$	46,103
Collectively evaluated for impairment	394,836		119,286		35,010		549,132
Purchased loans with evidence of credit deterioration	670		85		450		1,205
Total	$	427,697	$	122,269	$	46,474	$	596,440
Outstanding loan balances:
Individually evaluated for impairment	$	279,928	$	122,063	$	92,612	$	494,603
Collectively evaluated for impairment	20,859,442		10,122,697		8,503,160		39,485,299
Purchased loans with evidence of credit deterioration	64,280		57,963		10,978		133,221
Total	$	21,203,650	$	10,302,723	$	8,606,750	$	40,113,123

	December 31, 2014
(In thousands)	Commercial		Commercial real estate		Consumer		Total
Allowance for loan losses:
Individually evaluated for impairment	$	28,627	$	4,027	$	9,059	$	41,713
Collectively evaluated for impairment	382,552		140,090		37,508		560,150
Purchased loans with evidence of credit deterioration	1,335		892		573		2,800
Total	$	412,514	$	145,009	$	47,140	$	604,663
Outstanding loan balances:
Individually evaluated for impairment	$	259,207	$	167,435	$	95,267	$	521,909
Collectively evaluated for impairment	21,105,217		9,861,862		8,395,371		39,362,450
Purchased loans with evidence of credit deterioration	79,940		83,711		15,648		179,299
Total	$	21,444,364	$	10,113,008	$	8,506,286	$	40,063,658

	September 30, 2015
(In thousands)	Unpaid principal balance		Recorded investment				Total recorded investment		Related allowance
			with no allowance		with allowance
Commercial:
Commercial and industrial	$	245,404	$	37,843	$	156,665	$	194,508	$	26,888
Owner occupied	151,243		83,527		48,400		131,927		5,091
Municipal	1,446		967		—		967		—
Total commercial	398,093		122,337		205,065		327,402		31,979
Commercial real estate:
Construction and land development	47,876		7,486		23,800		31,286		1,068
Term	138,865		90,294		27,856		118,150		1,463
Total commercial real estate	186,741		97,780		51,656		149,436		2,531
Consumer:
Home equity credit line	28,358		20,672		4,703		25,375		419
1-4 family residential	72,855		29,257		40,465		69,722		10,090
Construction and other consumer real estate	2,966		1,069		1,106		2,175		181
Other	3,843		36		3,162		3,198		294
Total consumer loans	108,022		51,034		49,436		100,470		10,984
Total	$	692,856	$	271,151	$	306,157	$	577,308	$	45,494

	December 31, 2014
(In thousands)	Unpaid principal balance		Recorded investment				Total recorded investment		Related allowance
			with no allowance		with allowance
Commercial:
Commercial and industrial	$	185,520	$	43,257	$	103,565	$	146,822	$	22,852
Owner occupied	198,231		83,179		86,382		169,561		6,087
Municipal	1,535		1,056		—		1,056		—
Total commercial	385,286		127,492		189,947		317,439		28,939
Commercial real estate:
Construction and land development	60,993		16,500		26,977		43,477		1,773
Term	203,788		96,351		63,740		160,091		2,345
Total commercial real estate	264,781		112,851		90,717		203,568		4,118
Consumer:
Home equity credit line	30,209		14,798		11,883		26,681		437
1-4 family residential	86,575		37,096		35,831		72,927		8,494
Construction and other consumer real estate	3,902		1,449		1,410		2,859		233
Other	6,580		—		5,254		5,254		133
Total consumer loans	127,266		53,343		54,378		107,721		9,297
Total	$	777,333	$	293,686	$	335,042	$	628,728	$	42,354

	Three Months Ended September 30, 2015				Nine Months Ended September 30, 2015
(In thousands)	Average recorded investment		Interest income recognized		Average recorded investment		Interest income recognized
Commercial:
Commercial and industrial	$	191,642	$	1,314	$	158,825	$	5,525
Owner occupied	138,194		2,752		135,212		9,706
Municipal	978		—		1,007		—
Total commercial	330,814		4,066		295,044		15,231
Commercial real estate:
Construction and land development	31,506		499		31,920		2,691
Term	119,694		3,705		124,446		13,383
Total commercial real estate	151,200		4,204		156,366		16,074
Consumer:
Home equity credit line	25,095		401		24,329		1,206
1-4 family residential	90,240		398		91,671		1,803
Construction and other consumer real estate	5,540		32		2,342		91
Bankcard and other revolving plans	—		1		1		101
Other	36		177		4,109		692
Total consumer loans	120,911		1,009		122,452		3,893
Total	$	602,925	$	9,279	$	573,862	$	35,198

	Three Months Ended September 30, 2014				Nine Months Ended September 30, 2014
(In thousands)	Average recorded investment		Interest income recognized		Average recorded investment		Interest income recognized
Commercial:
Commercial and industrial	$	186,026	$	2,335	$	180,130	$	8,819
Owner occupied	232,484		4,514		235,380		13,774
Municipal	8,798		—		9,343		—
Total commercial	427,308		6,849		424,853		22,593
Commercial real estate:
Construction and land development	59,735		515		62,404		5,398
Term	225,536		5,670		248,587		26,118
Total commercial real estate	285,271		6,185		310,991		31,516
Consumer:
Home equity credit line	26,328		369		25,756		1,139
1-4 family residential	81,116		556		81,168		1,583
Construction and other consumer real estate	3,226		43		3,112		115
Bankcard and other revolving plans	—		1		3		2
Other	6,284		384		7,333		1,315
Total consumer loans	116,954		1,353		117,372		4,154
Total	$	829,533	$	14,387	$	853,216	$	58,263

Summary Of Selected Information On TDRs That Includes Recorded Investment On An Accruing And Nonaccruing Basis By Loan Class And Modification Type

	Three Months Ended September 30, 2015						Nine Months Ended September 30, 2015
(In thousands)	Accruing		Nonaccruing		Total		Accruing		Nonaccruing		Total
Commercial:
Commercial and industrial	$	—	$	9	$	9	$	—	$	104	$	104
Owner occupied	—		—		—		—		943		943
Total commercial	—		9		9		—		1,047		1,047
Commercial real estate:
Construction and land development	—		—		—		—		—		—
Term	—		—		—		—		833		833
Total commercial real estate	—		—		—		—		833		833
Consumer:
Home equity credit line	—		—		—		—		—		—
1-4 family residential	—		595		595		—		595		595
Construction and other consumer real estate	—		—		—		—		—		—
Total consumer loans	—		595		595		—		595		595
Total	$	—	$	604	$	604	$	—	$	2,475	$	2,475

	Three Months Ended September 30, 2014						Nine Months Ended September 30, 2014
(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
Commercial real estate:
Construction and land development	—		—		—		—		—		—
Term	—		—		—		—		—		—
Total commercial real estate	—		—		—		—		—		—
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

Note: Total loans modified as TDRs during the 12 months previous to September 30, 2015 and 2014 were $93.4 millionand

	September 30, 2015
	Recorded investment resulting from the following modification types:
(In thousands)	Interest rate below market		Maturity or term extension		Principal forgiveness		Payment deferral		Other1		Multiple modification types2		Total
Accruing
Commercial:
Commercial and industrial	$	455	$	3,906	$	14	$	108	$	223	$	35,228	$	39,934
Owner occupied	2,034		701		938		—		8,151		17,172		28,996
Total commercial	2,489		4,607		952		108		8,374		52,400		68,930
Commercial real estate:
Construction and land development	97		—		—		—		—		13,431		13,528
Term	4,758		766		170		975		2,409		20,825		29,903
Total commercial real estate	4,855		766		170		975		2,409		34,256		43,431
Consumer:
Home equity credit line	192		1,060		11,143		—		164		2,360		14,919
1-4 family residential	2,482		358		7,388		435		3,474		34,901		49,038
Construction and other consumer real estate	177		488		—		—		—		1,153		1,818
Total consumer loans	2,851		1,906		18,531		435		3,638		38,414		65,775
Total accruing	10,195		7,279		19,653		1,518		14,421		125,070		178,136
Nonaccruing
Commercial:
Commercial and industrial	90		471		—		2,018		5,351		37,950		45,880
Owner occupied	1,220		1,742		—		5,833		36		9,060		17,891
Municipal	—		967		—		—		—		—		967
Total commercial	1,310		3,180		—		7,851		5,387		47,010		64,738
Commercial real estate:
Construction and land development	10,512		354		—		—		3,197		968		15,031
Term	2,456		—		833		—		2,899		9,919		16,107
Total commercial real estate	12,968		354		833		—		6,096		10,887		31,138
Consumer:
Home equity credit line	8		514		512		58		—		48		1,140
1-4 family residential	—		268		2,085		173		1,227		7,325		11,078
Construction and other consumer real estate	—		143		18		60		—		72		293
Total consumer loans	8		925		2,615		291		1,227		7,445		12,511
Total nonaccruing	14,286		4,459		3,448		8,142		12,710		65,342		108,387
Total	$	24,481	$	11,738	$	23,101	$	9,660	$	27,131	$	190,412	$	286,523

	December 31, 2014
	Recorded investment resulting from the following modification types:
(In thousands)	Interest rate below market		Maturity or term extension		Principal forgiveness		Payment deferral		Other1		Multiple modification types2		Total
Accruing
Commercial:
Commercial and industrial	$	2,611	$	6,509	$	18	$	3,203	$	3,855	$	34,585	$	50,781
Owner occupied	19,981		1,124		960		1,251		10,960		17,505		51,781
Total commercial	22,592		7,633		978		4,454		14,815		52,090		102,562
Commercial real estate:
Construction and land development	—		—		—		—		521		19,854		20,375
Term	7,328		9,027		179		3,153		2,546		39,007		61,240
Total commercial real estate	7,328		9,027		179		3,153		3,067		58,861		81,615
Consumer:
Home equity credit line	742		70		11,320		—		166		1,281		13,579
1-4 family residential	2,425		552		6,828		446		753		34,719		45,723
Construction and other consumer real estate	290		422		42		90		—		1,227		2,071
Total consumer loans	3,457		1,044		18,190		536		919		37,227		61,373
Total accruing	33,377		17,704		19,347		8,143		18,801		148,178		245,550
Nonaccruing
Commercial:
Commercial and industrial	442		576		—		611		5,199		20,410		27,238
Owner occupied	2,714		1,219		—		883		2,852		12,040		19,708
Municipal	—		1,056		—		—		—		—		1,056
Total commercial	3,156		2,851		—		1,494		8,051		32,450		48,002
Commercial real estate:
Construction and land development	11,080		68		—		93		3,300		6,427		20,968
Term	2,851		—		—		—		277		4,607		7,735
Total commercial real estate	13,931		68		—		93		3,577		11,034		28,703
Consumer:
Home equity credit line	—		—		420		203		—		399		1,022
1-4 family residential	3,378		1,029		1,951		191		3,527		9,413		19,489
Construction and other consumer real estate	—		463		—		—		—		100		563
Total consumer loans	3,378		1,492		2,371		394		3,527		9,912		21,074
Total nonaccruing	20,465		4,411		2,371		1,981		15,155		53,396		97,779
Total	$	53,842	$	22,115	$	21,718	$	10,124	$	33,956	$	201,574	$	343,329

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 September 30,						Nine Months Ended September 30,
(In thousands)	2015			2014			2015			2014
Commercial:
Commercial and industrial	$	(67	)	$	(36	)	$	(189	)	$	(34	)
Owner occupied	(46		)	(124		)	(230		)	(400		)
Total commercial	(113		)	(160		)	(419		)	(434		)
Commercial real estate:
Construction and land development	(26		)	(48		)	(88		)	(154		)
Term	(84		)	(150		)	(295		)	(435		)
Total commercial real estate	(110		)	(198		)	(383		)	(589		)
Consumer:
Home equity credit line	—			(1		)	(1		)	(4		)
1-4 family residential	(260		)	(276		)	(800		)	(863		)
Construction and other consumer real estate	(7		)	(8		)	(21		)	(25		)
Total consumer loans	(267		)	(285		)	(822		)	(892		)
Total decrease to interest income1	$	(490	)	$	(643	)	$	(1,624	)	$	(1,915	)

¹  Calculated 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, 2015			December 31, 2014
Commercial		$	78,180		$	104,942
Commercial real estate		81,012			118,217
Consumer		12,204			17,910
Outstanding balance		$	171,396		$	241,069
Carrying amount		$	133,221		$	179,299
Less ALLL		1,205			2,800
Carrying amount, net		$	132,016		$	176,499

Schedule Of Changes In The Accretable Yield For PCI Loans

(In thousands)	Three Months Ended September 30,						Nine Months Ended September 30,
	2015			2014			2015			2014
Balance at beginning of period	$	46,702		$	60,834		$	45,055		$	77,528
Accretion	(7,535		)	(10,279		)	(28,792		)	(46,767		)
Reclassification from nonaccretable difference	1,005			2,955			18,865			17,406
Disposals and other	1,126			(38		)	6,170			5,305
Balance at end of period	$	41,298		$	53,472		$	41,298		$	53,472

Note: Amounts have been adjusted based on refinements to the original estimates of the accretable yield.

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Loans And Allowance For Credit Losses (Summary Of Past Due Loans (Accruing And Nonaccruing)) (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended		12 Months Ended
		Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		$ 604	$ 2,265	$ 2,475	$ 2,466	$ 93,400	$ 97,300
Financing Receivable, Recorded Investment, Current		39,794,516		39,794,516		39,794,516		$ 39,796,072
Financing Receivable Recorded Investment Thirty To Eighty Nine Days Past Due		166,927		166,927		166,927		104,491
Financing Receivable Recorded Investments, Equal To and Greater Than 90 Days Past Due		151,680		151,680		151,680		163,095
Total past due		318,607		318,607		318,607		267,586
Total loans		40,113,123		40,113,123		40,113,123		40,063,658
Accruing loans 90+ days past due		34,857		34,857		34,857		29,228
Financing Receivable, Recorded Investment, Nonaccrual Status	[1]	193,883		193,883		193,883		154,778
Commercial And Industrial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		9	729	104	848
Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans		21,203,650		21,203,650		21,203,650		21,444,364
Commercial Loan [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		9	1,754	1,047	1,873
Financing Receivable, Recorded Investment, Nonaccrual Status		245,033		245,033		245,033		194,185
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	0	0
Financing Receivable, Recorded Investment, Nonaccrual Status		15,202		15,202		15,202		23,880
Consumer Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans		8,606,750		8,606,750		8,606,750		8,506,286
Financing Receivable, Recorded Investment, Nonaccrual Status		272		272		272		254
Consumer Loan [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		595	511	595	593
Financing Receivable, Recorded Investment, Nonaccrual Status		59,984		59,984		59,984		63,476
Commercial and Industrial Sector [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status		167,136		167,136		167,136		105,591
Finance Leases Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status		306		306		306		295
Owner Occupied [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	1,025	943	1,025
Financing Receivable, Recorded Investment, Nonaccrual Status		76,624		76,624		76,624		87,243
Municipal [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status		967		967		967		1,056
Term [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	833	0
Financing Receivable, Recorded Investment, Nonaccrual Status		39,053		39,053		39,053		25,107
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	833	0
Total loans		10,302,723		10,302,723		10,302,723		10,113,008
Financing Receivable, Recorded Investment, Nonaccrual Status		54,255		54,255		54,255		48,987
Home Equity Line of Credit [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	158	0	201
Financing Receivable, Recorded Investment, Nonaccrual Status		9,792		9,792		9,792		11,430
One Through Four Family Residential [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		595	353	595	353
Financing Receivable, Recorded Investment, Nonaccrual Status		48,592		48,592		48,592		49,861
Construction And Other Consumer Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	0	39
Financing Receivable, Recorded Investment, Nonaccrual Status		765		765		765		1,735
Revolving Credit Facility [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status		563		563		$ 563		$ 196
Accruing [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	96	0	96
Accruing [Member] | Commercial And Industrial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	96	0	96
Accruing [Member] | Commercial Loan [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	96	0	96
Accruing [Member] | Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	0	0
Accruing [Member] | Consumer Loan [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	0	0
Accruing [Member] | Owner Occupied [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	0	0
Accruing [Member] | Term [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	0	0
Accruing [Member] | Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	0	0
Accruing [Member] | Home Equity Line of Credit [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	0	0
Accruing [Member] | One Through Four Family Residential [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	0	0
Accruing [Member] | Construction And Other Consumer Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	0	0
Nonaccruing [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		604	2,169	2,475	2,370
Nonaccruing [Member] | Commercial And Industrial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		9	633	104	752
Nonaccruing [Member] | Commercial Loan [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		9	1,658	1,047	1,777
Nonaccruing [Member] | Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	0	0
Nonaccruing [Member] | Consumer Loan [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		595	511	595	593
Nonaccruing [Member] | Owner Occupied [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	1,025	943	1,025
Nonaccruing [Member] | Term [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	833	0
Nonaccruing [Member] | Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	0	833	0
Nonaccruing [Member] | Home Equity Line of Credit [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		0	158	0	201
Nonaccruing [Member] | One Through Four Family Residential [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		595	353	595	353
Nonaccruing [Member] | Construction And Other Consumer Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		$ 0	$ 0	$ 0	$ 39

[1] Represents nonaccrual loans that are not past due more than 30 days; however, full payment of principal and interest is still not expected.

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Investment Securities (Rollforward Of Total Amount Of Credit-Related OTTI) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Investment [Line Items]
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Additions, Additional Credit Losses		$ 0		$ (27)
Balance of credit-related OTTI at beginning of period	$ 0	(172,993)	$ 104,551	185,885
Reductions for securities sold during the period	0	44,929	104,551	57,848
Balance of credit-related OTTI at end of period	0	(128,064)	0	(128,064)
Transfer of Securities from HTM to AFS	0		0
Held-to-maturity Securities [Member]
Investment [Line Items]
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Additions, Additional Credit Losses		0		(27)
Balance of credit-related OTTI at beginning of period	0	(9,079)	9,079	9,052
Reductions for securities sold during the period	0	0	0	0
Balance of credit-related OTTI at end of period	0	(9,079)	0	(9,079)
Transfer of Securities from HTM to AFS	0		9,079
Available-for-sale Securities [Member]
Investment [Line Items]
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Additions, Additional Credit Losses		0		0
Balance of credit-related OTTI at beginning of period	0	(163,914)	95,472	176,833
Reductions for securities sold during the period	0	44,929	104,551	57,848
Balance of credit-related OTTI at end of period	0	$ (118,985)	0	$ (118,985)
Transfer of Securities from HTM to AFS	$ 0		$ (9,079)

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Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Net income for the period	$ 100,999	$ 95,888	$ 206,984	$ 316,648
Other comprehensive income, net of tax:
Unrealized holding gains on investment securities	11,268	18,265	4,460	100,723
Reclassification of HTM securities to AFS Securities	0	0	10,938	0
Reclassification to earnings for realized net fixed income securities losses (gains)	33	7,886	85,845	(20,058)
Reclassification to earnings for net credit-related impairment losses on investment securities	0	0	0	17
Accretion of securities with noncredit-related impairment losses not expected to be sold	0	276	0	835
Net unrealized gains (losses) on other noninterest-bearing investments	(1,881)	454	94	(333)
Net unrealized holding gains (losses) on derivative instruments	10,607	(508)	12,941	1,011
Reclassification adjustment for increase in interest income recognized in earnings on derivatives instruments	(1,830)	(463)	(3,212)	(1,021)
Other comprehensive income	18,197	25,910	111,066	81,174
Comprehensive income	$ 119,196	$ 121,798	$ 318,050	$ 397,822

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Certain Recent Accounting Pronouncements (Notes)

9 Months Ended

Sep. 30, 2015

Certain Recent Accounting Pronouncements [Abstract]

Certain Recent Accounting Pronouncements [Text Block]

RECENT ACCOUNTING PRONOUNCEMENTS

Standard	Description	Date of adoption	Effect on the financial statements or other significant matters
Standards not yet adopted by the Company
ASU 2015-07, Disclosures for Investments in Certain Entities That Calculate Net Asset Value per Share (or its Equivalent), (Topic 820)	The guidance eliminates the current requirement to categorize within the fair value hierarchy investments whose fair values are measured at net asset value (“NAV”) using the practical expedient in ASC 820. Fair value disclosure of these investments will be made to facilitate reconciliation to amounts reported on the balance sheet. Other related disclosures will continue when the NAV practical expedient is used. Adoption is retrospective and early adoption is permitted.	January 1, 2016	We do not currently expect this new disclosure guidance will have a material impact on the Company’s financial statements.

Standard	Description	Date of adoption	Effect on the financial statements or other significant matters
Standards not yet adopted by the Company (continued)
ASU 2015-05, Customer’s Accounting for Fees Paid in a Cloud Computing Arrangement (Subtopic 350-40)	The standard provides guidance to determine whether an arrangement includes a software license. If it does, the customer accounts for it the same way as for other software licenses. If no software license is included, the customer accounts for it as a service contract. Adoption may be retrospective or prospective. Early adoption is permitted.	January 1, 2016	We are currently evaluating the impact this new guidance may have on the Company’s financial statements.
ASU 2015-03, Simplifying the Presentation of Debt Issuance Costs (Subtopic 835-30)	The standard requires that debt issuance costs be presented in the balance sheet as a direct deduction from the carrying amount of the associated debt liability, consistent with debt discounts. Adoption is retrospective and early adoption is permitted.	January 1, 2016	We currently include debt issuance costs in other assets. The amount to be reclassified to the debt liability is not material to the Company’s financial statements.
ASU 2015-02, Amendments to the Consolidation Analysis (Topic 810)	The new standard changes certain criteria in the variable interest model and the voting model to determine whether certain legal entities are variable interest entities (“VIEs”) and whether they should be consolidated. Additional disclosures are required for entities not currently considered VIEs, but may become VIEs under the new guidance and may be subject to consolidation. Adoption may be retrospective or modified retrospective with a cumulative effect adjustment. Early adoption is permitted.	January 1, 2016	We currently do not consolidate any VIEs and do not expect this new guidance will have a material impact on the Company’s financial statements.
ASU 2014-09, Revenue from Contracts with Customers (Topic 606)	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 standard, (including loans, derivatives, debt and equity securities, etc.). However, the new standard affects other fees charged by banks, such as asset management fees, credit card interchange fees, deposit account fees, etc. Adoption may be made on a full retrospective basis with practical expedients, or on a modified retrospective basis with a cumulative effect adjustment. Early adoption of the guidance is permitted as of January 1, 2017.	January 1, 2018, as extended in August 2015 by ASU 2015-14	While we currently do not expect this standard will have a material impact on the Company’s financial statements, we are still in process of conducting our evaluation.
Standards adopted by the Company
ASU 2014-14, Classification of Certain Government-Guaranteed Mortgage Loans upon Foreclosure (Subtopic 310-40)	The standard addresses the classification of certain foreclosed mortgage loans fully or partially guaranteed under government programs. Under certain such programs, qualifying creditors can extend mortgage loans with a guarantee entitling the creditor to recover all or a portion of the unpaid principal balance from the government if the borrower defaults. A separate other receivable is established that is measured based on the amount of the loans expected to be recovered.	January 1, 2015	Our adoption of this standard had no impact on the accompanying financial statements.

Standard	Description	Date of adoption	Effect on the financial statements or other significant matters
Standards adopted by the Company (continued)
ASU 2014-04, Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure (Subtopic 310-40)	The standard 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. Additional financial statement disclosures will be required.	January 1, 2015	Our adoption of this standard added a nominal amount of additional disclosure to Note 6.
ASU 2014-01, Accounting for Investments in Qualified Affordable Housing Projects (Topic 323)	The standard revised conditions an entity must meet to elect the effective yield method when accounting for qualified affordable housing project investments. The EITF final consensus changed the method of amortizing a Low-Income Housing Tax Credit (“LIHTC”) investment from the effective yield method to a proportional amorti-zation method. Amortization would be proportional to the tax credits and tax benefits received but, under a practical expedient 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.	January 1, 2015	Our adoption of this standard did not have a material impact on the accompanying financial statements.

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Derivative Instruments And Hedging Activities (Schedule Of Notional Amounts And Recorded Gross Fair Values And Related Gain (Loss) Of Derivative Instruments) (Details) - USD ($) $ in Thousands		3 Months Ended				9 Months Ended
		Sep. 30, 2015		Sep. 30, 2014		Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Derivative [Line Items]
Total derivatives, Notional amount		$ 4,966,012				$ 4,966,012		$ 3,488,773
Amount of derivative gain (loss), recognized in OCI		17,343		$ (845)		21,172	$ 1,681
Amount of derivative gain (loss), Reclassified from AOCI to interest income		2,957		770		5,191	1,698
Derivatives instruments, Noninterest income (expense)		3,446		3,662		12,269	(1,095)
Derivatives designated as hedging instruments, Offset to interest expense		$ 431		496		$ 1,364	1,822
Cash Flow Hedging [Member]
Derivative [Line Items]
Derivatives instruments, Noninterest income (expense)	[1]
Other Assets [Member]
Derivative [Line Items]
Derivatives hedging instruments, assets		$ 103,119				$ 103,119		66,420
Other Liabilities [Member]
Derivative [Line Items]
Derivatives hedging instruments, liabilities		86,363				86,363		66,064
Derivatives Designated As Hedging Instruments [Member]
Derivative [Line Items]
Total derivatives, Notional amount		1,387,500				1,387,500		275,000
Amount of derivative gain (loss), recognized in OCI		17,343		(845)		21,172	1,681
Amount of derivative gain (loss), Reclassified from AOCI to interest income		$ 2,957		770		$ 5,191	1,698
Derivatives instruments, Noninterest income (expense)
Derivatives designated as hedging instruments, Offset to interest expense		$ 431		496		$ 1,364	1,822
Derivatives Designated As Hedging Instruments [Member] | Cash Flow Hedging [Member]
Derivative [Line Items]
Amount of derivative gain (loss), recognized in OCI	[1]	17,343		(845)		21,172	1,681
Amount of derivative gain (loss), Reclassified from AOCI to interest income	[1]	2,957		770		5,191	1,698
Derivatives Designated As Hedging Instruments [Member] | Other Assets [Member]
Derivative [Line Items]
Derivatives hedging instruments, assets		17,367				17,367		1,508
Derivatives Designated As Hedging Instruments [Member] | Other Liabilities [Member]
Derivative [Line Items]
Derivatives hedging instruments, liabilities		0				0		123
Derivatives Designated As Hedging Instruments [Member] | Interest Rate Swaps [Member] | Cash Flow Hedging [Member]
Derivative [Line Items]
Total derivatives, Notional amount		1,387,500				1,387,500		275,000
Amount of derivative gain (loss), recognized in OCI		17,343		(845)		21,172	1,681
Amount of derivative gain (loss), Reclassified from AOCI to interest income		2,957	[1]	770	[1]	5,191	1,698
Derivatives Designated As Hedging Instruments [Member] | Interest Rate Swaps [Member] | Other Assets [Member] | Cash Flow Hedging [Member]
Derivative [Line Items]
Derivatives hedging instruments, assets		17,367				17,367		1,508
Derivatives Designated As Hedging Instruments [Member] | Interest Rate Swaps [Member] | Other Liabilities [Member] | Cash Flow Hedging [Member]
Derivative [Line Items]
Derivatives hedging instruments, liabilities		0				0		123
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		431		496		1,364	1,822
Derivatives Not Designated As Hedging Instruments [Member]
Derivative [Line Items]
Total derivatives, Notional amount		3,578,512				3,578,512		3,213,773
Derivatives instruments, Noninterest income (expense)		3,446		3,662		12,269	(1,095)
Derivatives Not Designated As Hedging Instruments [Member] | Other Assets [Member]
Derivative [Line Items]
Derivatives hedging instruments, assets		85,752				85,752		64,912
Derivatives Not Designated As Hedging Instruments [Member] | Other Liabilities [Member]
Derivative [Line Items]
Derivatives hedging instruments, liabilities		86,363				86,363		65,941
Derivatives Not Designated As Hedging Instruments [Member] | Foreign Exchange [Member]
Derivative [Line Items]
Total derivatives, Notional amount		340,818				340,818		443,721
Derivatives instruments, Noninterest income (expense)		2,506		2,242		6,938	5,951
Derivatives Not Designated As Hedging Instruments [Member] | Foreign Exchange [Member] | Other Assets [Member]
Derivative [Line Items]
Derivatives hedging instruments, assets		18,947				18,947		16,625
Derivatives Not Designated As Hedging Instruments [Member] | Foreign Exchange [Member] | Other Liabilities [Member]
Derivative [Line Items]
Derivatives hedging instruments, liabilities		16,372				16,372		15,272
Derivatives Not Designated As Hedging Instruments [Member] | Interest Rate Swaps [Member]
Derivative [Line Items]
Derivatives instruments, Noninterest income (expense)				1			355
Derivatives Not Designated As Hedging Instruments [Member] | Interest Rate Swaps For Customers [Member]
Derivative [Line Items]
Total derivatives, Notional amount		3,237,694				3,237,694		2,770,052
Derivatives instruments, Noninterest income (expense)		939		1,419		5,329	493
Derivatives Not Designated As Hedging Instruments [Member] | Interest Rate Swaps For Customers [Member] | Other Assets [Member]
Derivative [Line Items]
Derivatives hedging instruments, assets		66,805				66,805		48,287
Derivatives Not Designated As Hedging Instruments [Member] | Interest Rate Swaps For Customers [Member] | Other Liabilities [Member]
Derivative [Line Items]
Derivatives hedging instruments, liabilities		69,991				69,991		$ 50,669
Derivatives Not Designated As Hedging Instruments [Member] | Future [Member]
Derivative [Line Items]
Derivatives instruments, Noninterest income (expense)		$ 1				$ 2
Derivatives Not Designated As Hedging Instruments [Member] | Total Return Swap [Member]
Derivative [Line Items]
Derivatives instruments, Noninterest income (expense)				$ 0			$ (7,894)

[1] Amounts recognized in OCI and reclassified from AOCI represent the effective portion of the derivative gain.

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Fair Value Fair Value (Summary of Quantitative Information Relating to the Principal Valuation Techniques and Significant Unobservable Inputs for Level 3) (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2015	Dec. 31, 2014
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
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	0.50%	0.50%
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%	0.60%
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
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	0.50%	0.80%
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	0.70%	0.90%
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	0.70%	0.70%
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%
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	$ 0	$ 401,957
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		$ 393,007

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Derivative Instruments And Hedging Activities Derivative Instruments and Hedging Activities (Tables)

9 Months Ended

Sep. 30, 2015

Summary of Derivative Instruments [Abstract]

Schedule of Derivative Instruments

	September 30, 2015						December 31, 2014
	Notional amount		Fair value				Notional amount		Fair value
(In thousands)			Other assets		Other liabilities				Other assets		Other liabilities
Derivatives designated as hedging instruments
Asset derivatives
Cash flow hedges:
Interest rate swaps	$	1,387,500	$	17,367	$	—	$	275,000	$	1,508	$	123
Total derivatives designated as hedging instruments	1,387,500		17,367		—		275,000		1,508		123
Derivatives not designated as hedging instruments
Interest rate swaps for customers 2	3,237,694		66,805		69,991		2,770,052		48,287		50,669
Foreign exchange	340,818		18,947		16,372		443,721		16,625		15,272
Total derivatives not designated as hedging instruments	3,578,512		85,752		86,363		3,213,773		64,912		65,941
Total derivatives	$	4,966,012	$	103,119	$	86,363	$	3,488,773	$	66,420	$	66,064

Schedule Of Gain (Loss) Of Derivative Instruments

	Three Months Ended September 30, 2015								Nine Months Ended September 30, 2015
	Amount of derivative gain (loss) recognized/reclassified
(In thousands)	OCI		Reclassified from AOCI to interest income 3		Noninterest income (expense)		Offset to interest expense		OCI		Reclassified from AOCI to interest income 3		Noninterest income (expense)		Offset to interest expense
Derivatives designated as hedging instruments
Asset derivatives
Cash flow hedges 1:
Interest rate swaps	$	17,343	$	2,957					$	21,172	$	5,191
	17,343		2,957						21,172		5,191
Liability derivatives
Fair value hedges:
Terminated swaps on long-term debt							$	431							$	1,364
Total derivatives designated as hedging instruments	17,343		2,957				431		21,172		5,191				1,364
Derivatives not designated as hedging instruments
Interest rate swaps for customers 2					$	939							$	5,329
Futures contracts					1								2
Foreign exchange					2,506								6,938
Total derivatives not designated as hedging instruments					3,446								12,269
Total derivatives	$	17,343	$	2,957	$	3,446	$	431	$	21,172	$	5,191	$	12,269	$	1,364

	Three Months Ended September 30, 2014									Nine Months Ended September 30, 2014
	Amount of derivative gain (loss) recognized/reclassified
(In thousands)	OCI			Reclassified from AOCI to interest income 3		Noninterest income (expense)		Offset to interest expense		OCI		Reclassified from AOCI to interest income 3		Noninterest income (expense)			Offset to interest expense
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

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 AOCI represent the effective portion of the derivative gain.

²  Notional amounts include both the customer swaps and the offsetting derivative contracts.

³  Amounts for the three and nine months endedSeptember 30, of $3.0 million and $5.2 millionin 2015, and $0.8 million and $1.7 million in 2014, respectively, are the amounts of reclassification to earnings from AOCI presented in Note 8.

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Retirement Plans (Schedule Of Net Periodic Benefit Cost (Credit) For Pension And Postretirement Plans) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 0	$ 0	$ 0	$ 0
Interest cost	1,755	1,869	5,320	5,608
Expected return on plan assets	(3,090)	(3,326)	(9,270)	(9,979)
Amortization of net actuarial (gain) loss	1,297	735	4,445	2,206
Net periodic benefit cost (credit)	(38)	(722)	495	(2,165)
Supplemental Retirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	0	0	0
Interest cost	101	113	302	340
Amortization of prior service cost (credit)	0	13	0	38
Amortization of net actuarial (gain) loss	31	5	92	14
Net periodic benefit cost (credit)	132	131	394	392
Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	8	8	25	23
Interest cost	10	12	30	35
Amortization of prior service cost (credit)	0	0	0	0
Amortization of net actuarial (gain) loss	(13)	(18)	(40)	(53)
Net periodic benefit cost (credit)	$ 5	$ 2	$ 15	$ 5

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Investment Securities (Summary Of Investment Securities) (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014	Mar. 31, 2015
Investment [Line Items]
Held-to-maturity, fair value	$ 553,088	$ 677,196
Held-to-maturity, Amortized cost	544,168	686,951
Held To Maturity Securities Gross Unrealized Gains Losses 1		0
Held To Maturity Securities Gross Unrealized Losses		39,699
Held-to-maturity, Carrying value	544,168	647,252
Available-for-sale Debt Securities, Amortized Cost Basis	5,962,828	3,819,297
Available-For-Sale Debt Securities, Gross Unrealized Gains, Recognized In O C I	35,559	31,603
Available-For-Sale Debt Securities, Gross Unrealized Losses, Recognized In O C I	20,240	142,275
Available-For-Sale Securities, Debt Securities, Net Carrying Amount	5,978,147
Available-for-sale debt securities, Estimated fair value	5,978,147	3,708,625
Available-for-sale Securities, Gross Unrealized Gain	35,650	31,679
Available-for-sale equity securities, Carrying value		3,708,625
Available-for-sale, Amortized cost	5,984,601	3,955,888
Available-for-sale, Gross unrealized losses, Recognized in OCI	20,240	143,319
Carrying value	6,000,011	3,844,248
Available-for-sale securities, Estimated fair value	6,000,011	3,844,248
Held-to-maturity Securities, Unrecognized Holding Gain		31,411
Held-to-maturity Securities, Unrecognized Holding Loss		1,467
amortized cost of investment securities	6,528,769	4,642,839
Gross Unrealized Gains of Investment Securities Recognized in OCI	45,626	31,679
Gross Unrealized Losses of Investment Securities Recognized in OCI	21,296	183,018
Carrying Value of Investment Securities	6,553,099	4,491,500
Estimated Fair Value of Investment Securities		4,521,444
Money Market Mutual Funds and Other [Member]
Investment [Line Items]
Available-for-sale Securities, Gross Unrealized Gain	91
Available-for-sale, Amortized cost	21,773
Available-for-sale, Gross unrealized losses, Recognized in OCI	0
Carrying value	21,864
Municipal Securities [Member]
Investment [Line Items]
Held-to-maturity, fair value		619,889
Held-to-maturity, Amortized cost	544,168	607,675
Held To Maturity Securities Gross Unrealized Gains Losses 1		0
Held To Maturity Securities Gross Unrealized Losses		0
Held-to-maturity, Carrying value	553,088	607,675
Available-for-sale Debt Securities, Amortized Cost Basis	212,698	189,059
Available-For-Sale Debt Securities, Gross Unrealized Gains, Recognized In O C I	1,059	1,143
Available-For-Sale Debt Securities, Gross Unrealized Losses, Recognized In O C I	359	945
Available-For-Sale Securities, Debt Securities, Net Carrying Amount	213,398	189,257
Available-for-sale debt securities, Estimated fair value		189,257
Held-to-maturity Securities, Unrecognized Holding Gain	9,976	13,018
Held-to-maturity Securities, Unrecognized Holding Loss	1,056	804
Available-for-sale Securities [Member]
Investment [Line Items]
Available-for-sale Debt Securities, Amortized Cost Basis	25,485
Available-For-Sale Debt Securities, Gross Unrealized Gains, Recognized In O C I	187
Available-For-Sale Debt Securities, Gross Unrealized Losses, Recognized In O C I	2,905
Available-For-Sale Securities, Debt Securities, Net Carrying Amount	22,767
Trust Preferred Securities - Banks And Insurance [Member] | Asset-backed Securities [Member]
Investment [Line Items]
Held-to-maturity, fair value		57,307
Held-to-maturity, Amortized cost			$ 79,276
Held To Maturity Securities Gross Unrealized Gains Losses 1		0
Held To Maturity Securities Gross Unrealized Losses		39,699
Held-to-maturity, Carrying value		39,577
Available-For-Sale Debt Securities, Gross Unrealized Gains, Recognized In O C I		103
Available-For-Sale Debt Securities, Gross Unrealized Losses, Recognized In O C I		121,984
Available-for-sale equity securities, Carrying value		415,708
Available-for-sale, Amortized cost		537,589
Available-for-sale securities, Estimated fair value		415,708
Held-to-maturity Securities, Unrecognized Holding Gain		18,393
Held-to-maturity Securities, Unrecognized Holding Loss		663
Agency Securities [Member]
Investment [Line Items]
Available-for-sale Debt Securities, Amortized Cost Basis	1,102,978	607,523
Available-For-Sale Debt Securities, Gross Unrealized Gains, Recognized In O C I	7,147	1,572
Available-For-Sale Debt Securities, Gross Unrealized Losses, Recognized In O C I	578	8,343
Available-For-Sale Securities, Debt Securities, Net Carrying Amount	1,109,547	600,752
Available-for-sale debt securities, Estimated fair value		600,752
Agency Guaranteed Mortgage-Backed Securities [Member]
Investment [Line Items]
Available-for-sale Debt Securities, Amortized Cost Basis	2,805,901	935,164
Available-For-Sale Debt Securities, Gross Unrealized Gains, Recognized In O C I	12,989	12,132
Available-For-Sale Debt Securities, Gross Unrealized Losses, Recognized In O C I	5,619	2,105
Available-For-Sale Securities, Debt Securities, Net Carrying Amount	2,813,271	945,191
Available-for-sale debt securities, Estimated fair value		945,191
Small Business Administration Loan-Backed Securities [Member]
Investment [Line Items]
Available-for-sale Debt Securities, Amortized Cost Basis	1,815,766	1,544,710
Available-For-Sale Debt Securities, Gross Unrealized Gains, Recognized In O C I	14,177	16,446
Available-For-Sale Debt Securities, Gross Unrealized Losses, Recognized In O C I	10,779	8,891
Available-For-Sale Securities, Debt Securities, Net Carrying Amount	$ 1,819,164	1,552,265
Available-for-sale debt securities, Estimated fair value		1,552,265
Auction Rate Securities [Member] | Asset-backed Securities [Member]
Investment [Line Items]
Available-For-Sale Debt Securities, Gross Unrealized Gains, Recognized In O C I		207
Available-For-Sale Debt Securities, Gross Unrealized Losses, Recognized In O C I		7
Available-for-sale equity securities, Carrying value		5,452
Available-for-sale, Amortized cost		5,252
Available-for-sale securities, Estimated fair value		5,452
Mutual Funds And Other [Member]
Investment [Line Items]
Available-for-sale Securities, Gross Unrealized Gain		76
Available-for-sale, Amortized cost		136,591
Available-for-sale, Gross unrealized losses, Recognized in OCI		1,044
Carrying value		135,623
Available-for-sale securities, Estimated fair value		$ 135,623

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Retirement Plans

9 Months Ended

Sep. 30, 2015

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 retirement benefits				Postretirement benefits						Pension benefits						Supplemental retirement benefits				Postretirement benefits
(In thousands)	Three Months Ended September 30,																Nine Months Ended September 30,
	2015			2014			2015		2014		2015			2014			2015			2014			2015		2014		2015			2014
Service cost	$	—		$	—		$	—	$	—	$	8		$	8		$	—		$	—		$	—	$	—	$	25		$	23
Interest cost	1,755			1,869			101		113		10			12			5,320			5,608			302		340		30			35
Expected return on plan assets	(3,090		)	(3,326		)											(9,270		)	(9,979		)
Amortization of prior service cost							—		13		—			—									—		38		—			—
Amortization of net actuarial (gain) loss	1,297			735			31		5		(13		)	(18		)	4,445			2,206			92		14		(40		)	(53		)
Net periodic benefit cost (credit)	$	(38	)	$	(722	)	$	132	$	131	$	5		$	2		$	495		$	(2,165	)	$	394	$	392	$	15		$	5

As disclosed in the Company’s 2014 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.