10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

____________________________________________________

FORM 10-Q

____________________________________________________

xQuarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the quarterly period ended March 31, 2016

or

¨Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Commission File Number: 001-16715

____________________________________________________

First Citizens BancShares, Inc.

(Exact name of Registrant as specified in its charter)

____________________________________________________

Delaware	56-1528994
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification Number)
4300 Six Forks Road, Raleigh, North Carolina	27609
(Address of principle executive offices)	(Zip code)

(919) 716-7000

(Registrant’s telephone number, including area code)

____________________________________________________

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 twelve 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 ninety days.    Yes  x   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 such shorter period that the Registrant was required to submit and post such files)    Yes  x    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 definition of ‘accelerated filer’ and ‘large accelerated filer’ in Rule 12b-2 of the Exchange Act:

Large accelerated filer	x	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  x

Class A Common Stock—$1 Par Value—11,005,220 shares

Class B Common Stock—$1 Par Value—1,005,185 shares

(Number of shares outstanding, by class, as of May 4, 2016)

INDEX

		Page No.
PART I.	FINANCIAL INFORMATION
Item 1.	Financial Statements
	Consolidated Balance Sheets (Unaudited)	3
	Consolidated Statements of Income (Unaudited)	4
	Consolidated Statements of Comprehensive Income (Unaudited)	5
	Consolidated Statements of Changes in Shareholders’ Equity (Unaudited)	6
	Consolidated Statements of Cash Flows (Unaudited)	7
	Notes to Consolidated Financial Statements (Unaudited)	8
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	37
Item 3.	Quantitative and Qualitative Disclosures about Market Risk	58
Item 4.	Controls and Procedures	58
PART II.	OTHER INFORMATION
Item 1.	Legal Proceedings	59
Item 1A.	Risk Factors	59
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	59
Item 6.	Exhibits	59

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PART I

Item 1. Financial Statements

First Citizens BancShares, Inc. and Subsidiaries

Consolidated Balance Sheets

(Dollars in thousands, unaudited)	March 31, 2016			December 31, 2015
Assets
Cash and due from banks	$	457,758		$	534,086
Overnight investments	2,871,105			2,063,132
Investment securities available for sale	6,687,289			6,861,293
Investment securities held to maturity	194			255
Loans held for sale	66,988			59,766
Loans and leases	20,417,689			20,239,990
Allowance for loan and lease losses	(206,783		)	(206,216		)
Net loans and leases	20,210,906			20,033,774
Premises and equipment	1,127,371			1,135,829
Other real estate owned	65,068			65,559
Income earned not collected	73,518			70,036
FDIC loss share receivable	7,474			4,054
Goodwill	139,773			139,773
Other intangible assets	84,743			90,986
Other assets	403,470			417,391
Total assets	$	32,195,657		$	31,475,934
Liabilities
Deposits:
Noninterest-bearing	$	9,661,441		$	9,274,470
Interest-bearing	17,703,804			17,656,285
Total deposits	27,365,245			26,930,755
Short-term borrowings	689,236			594,733
Long-term obligations	779,087			704,155
FDIC loss share payable	128,243			126,453
Other liabilities	272,652			247,729
Total liabilities	29,234,463			28,603,825
Shareholders’ equity
Common stock:
Class A - $1 par value (16,000,000 shares authorized; 11,005,220 shares issued and outstanding at March 31, 2016 and December 31, 2015)	11,005			11,005
Class B - $1 par value (2,000,000 shares authorized; 1,005,185 shares issued and outstanding at March 31, 2016 and December 31, 2015)	1,005			1,005
Surplus	658,918			658,918
Retained earnings	2,314,090			2,265,621
Accumulated other comprehensive loss	(23,824		)	(64,440		)
Total shareholders’ equity	2,961,194			2,872,109
Total liabilities and shareholders’ equity	$	32,195,657		$	31,475,934

See accompanying Notes to Consolidated Financial Statements.

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First Citizens BancShares, Inc. and Subsidiaries

Consolidated Statements of Income

	Three months ended March 31
(Dollars in thousands, except per share data, unaudited)	2016			2015
Interest income
Loans and leases	$	216,404		$	210,862
Investment securities and dividend income	23,042			19,310
Overnight investments	3,666			1,338
Total interest income	243,112			231,510
Interest expense
Deposits	4,659			5,629
Short-term borrowings	434			1,934
Long-term obligations	5,299			3,782
Total interest expense	10,392			11,345
Net interest income	232,720			220,165
Provision for loan and lease losses	4,843			5,792
Net interest income after provision for loan and lease losses	227,877			214,373
Noninterest income
Gain on acquisition	1,704			42,930
Cardholder services	19,358			18,401
Merchant services	21,977			18,880
Service charges on deposit accounts	21,850			22,058
Wealth management services	19,634			20,880
Securities gains	4,628			5,126
Other service charges and fees	6,989			5,455
Mortgage income	1,311			4,549
Insurance commissions	3,178			3,297
ATM income	1,765			1,664
Adjustments to FDIC loss share receivable	(2,533		)	(1,047		)
Other	5,421			8,560
Total noninterest income	105,282			150,753
Noninterest expense
Salaries and wages	103,899			105,471
Employee benefits	27,350			31,218
Occupancy expense	25,012			25,620
Equipment expense	22,345			23,541
FDIC insurance expense	4,789			4,271
Foreclosure-related expenses	1,731			2,557
Merger-related expenses	38			2,997
Other	66,507			62,491
Total noninterest expense	251,671			258,166
Income before income taxes	81,488			106,960
Income taxes	29,416			39,802
Net income	$	52,072		$	67,158
Average shares outstanding	12,010,405			12,010,405
Net income per share	$	4.34		$	5.59

See accompanying Notes to Consolidated Financial Statements.

4

First Citizens BancShares, Inc. and Subsidiaries

Consolidated Statements of Comprehensive Income

	Three months ended March 31
(Dollars in thousands, unaudited)	2016			2015
Net income	$	52,072		$	67,158
Other comprehensive income:
Unrealized gains on securities:
Change in unrealized securities gains arising during period	68,033			30,415
Tax effect	(26,016		)	(11,813		)
Reclassification adjustment for net gains realized and included in income before income taxes	(4,628		)	(5,126		)
Tax effect	1,770			1,977
Total change in unrealized gains on securities, net of tax	39,159			15,453
Change in fair value of cash flow hedges:
Change in unrecognized loss on cash flow hedges	700			576
Tax effect	(263		)	(222		)
Total change in unrecognized loss on cash flow hedges, net of tax	437			354
Change in pension obligation:
Amortization of actuarial losses and prior service cost	1,652			2,886
Tax effect	(632		)	(1,123		)
Total change in pension obligation, net of tax	1,020			1,763
Other comprehensive income	40,616			17,570
Total comprehensive income	$	92,688		$	84,728

See accompanying Notes to Consolidated Financial Statements.

5

First Citizens BancShares, Inc. and Subsidiaries

Consolidated Statements of Changes in Shareholders’ Equity

(Dollars in thousands, unaudited)	Class A Common Stock		Class B Common Stock		Surplus		Retained Earnings			Accumulated Other Comprehensive (Loss) Income			Total Shareholders’ Equity
Balance at December 31, 2014	$	11,005	$	1,005	$	658,918	$	2,069,647		$	(52,981	)	$	2,687,594
Net income	—		—		—		67,158			—			67,158
Other comprehensive income, net of tax	—		—		—		—			17,570			17,570
Cash dividends ($0.30 per share)	—		—		—		(3,603		)	—			(3,603		)
Balance at March 31, 2015	$	11,005	$	1,005	$	658,918	$	2,133,202		$	(35,411	)	$	2,768,719
Balance at December 31, 2015	$	11,005	$	1,005	$	658,918	$	2,265,621		$	(64,440	)	$	2,872,109
Net income	—		—		—		52,072			—			52,072
Other comprehensive income, net of tax	—		—		—		—			40,616			40,616
Cash dividends ($0.30 per share)	—		—		—		(3,603		)	—			(3,603		)
Balance at March 31, 2016	$	11,005	$	1,005	$	658,918	$	2,314,090		$	(23,824	)	$	2,961,194

See accompanying Notes to Consolidated Financial Statements.

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First Citizens BancShares, Inc. and Subsidiaries

Consolidated Statements of Cash Flows

	Three months ended March 31
(Dollars in thousands, unaudited)	2016			2015
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$	52,072		$	67,158
Adjustments to reconcile net income to cash provided by operating activities:
Provision for loan and lease losses	4,843			5,792
Deferred tax benefit	(8,806		)	(10,203		)
Net change in current taxes	35,678			15,437
Depreciation	22,053			21,965
Net change in accrued interest payable	324			176
Net increase in income earned not collected	(3,482		)	(5,988		)
Gain on acquisition	(1,704		)	(42,930		)
Securities gains	(4,628		)	(5,126		)
Origination of loans held for sale	(144,895		)	(126,547		)
Proceeds from sale of loans	140,160			127,203
Gain on sale of loans	(2,487		)	(3,468		)
Net writedowns/losses on other real estate	2,599			1,978
Net amortization of premiums and discounts	(12,201		)	(17,150		)
Amortization of intangible assets	5,586			5,206
Reduction in FDIC receivable for loss share agreements	4,076			8,092
Increase in FDIC payable for loss share agreements	1,790			2,110
Net change in other assets	(19,678		)	15,223
Net change in other liabilities	3,857			3,804
Net cash provided by operating activities	75,157			62,732
CASH FLOWS FROM INVESTING ACTIVITIES
Net increase in loans outstanding	(131,923		)	(168,341		)
Purchases of investment securities available for sale	(1,139,933		)	(626,268		)
Proceeds from maturities/calls of investment securities held to maturity	61			77
Proceeds from maturities/calls of investment securities available for sale	396,211			330,500
Proceeds from sales of investment securities available for sale	987,260			481,708
Net change in overnight investments	(805,699		)	(734,004		)
Cash paid to the FDIC for loss share agreements	(9,871		)	(5,762		)
Proceeds from sales of other real estate	8,202			22,794
Additions to premises and equipment	(13,595		)	(13,177		)
Business acquisition, net cash acquired	14,745			123,137
Net cash used by investing activities	(694,542		)	(589,336		)
CASH FLOWS FROM FINANCING ACTIVITIES
Net decrease in time deposits	(84,802		)	(189,906		)
Net increase in demand and other interest-bearing deposits	460,086			545,807
Net change in short-term borrowings	92,841			(50,835		)
Repayment of long-term obligations	(68		)	(3,140		)
Origination of long-term obligations	75,000			120,000
Cash dividends paid	—			(3,603		)
Net cash provided by financing activities	543,057			418,323
Change in cash and due from banks	(76,328		)	(108,281		)
Cash and due from banks at beginning of period	534,086			604,182
Cash and due from banks at end of period	$	457,758		$	495,901
SUPPLEMENTAL DISCLOSURE OF NONCASH INVESTING AND FINANCING ACTIVITIES:
Transfers of loans to other real estate	$	9,980		$	21,300
Dividends declared but not paid	3,603			3,603

See accompanying Notes to Consolidated Financial Statements.

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First Citizens BancShares, Inc. and Subsidiaries

Notes to Unaudited Consolidated Financial Statements

NOTE A - ACCOUNTING POLICIES AND BASIS OF PRESENTATION

First Citizens BancShares, Inc. (BancShares) is a financial holding company organized under the laws of Delaware and conducts operations through its banking subsidiary, First-Citizens Bank & Trust Company (FCB), which is headquartered in Raleigh, North Carolina.

General

These consolidated financial statements and notes thereto are presented in accordance with instructions for Form 10-Q and Article 10 of Regulation S-X and, therefore, do not include all information and notes necessary for a complete presentation of financial position, results of operations and cash flow activity required in accordance with accounting principles generally accepted in the United States of America (GAAP). In the opinion of management, all normal recurring adjustments necessary for a fair presentation of the consolidated financial position and consolidated results of operations have been made. The unaudited interim consolidated financial statements included in this Form 10-Q should be read in conjunction with the consolidated financial statements and footnotes included in BancShares' Annual Report on Form 10-K for the year ended December 31, 2015.

Reclassifications

In certain instances, amounts reported in prior years' consolidated financial statements have been reclassified to conform to the current financial statement presentation. Such reclassifications had no effect on previously reported shareholders' equity or net income.

Use of Estimates in the Preparation of Financial Statements

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenues and expenses during the reporting periods. Actual results could differ from those estimates, and different assumptions in the application of these policies could result in material changes in BancShares' consolidated financial position, the consolidated results of operations or related disclosures. Material estimates that are particularly susceptible to significant change include:

• Allowance for loan and lease losses

• Fair value of financial instruments, including acquired assets and assumed liabilities

• Pension plan assumptions

• Cash flow estimates on purchased credit-impaired loans

• Receivable from and payable to the FDIC for loss share agreements

• Income tax assets, liabilities and expense

Recently Adopted Accounting Pronouncements

Financial Accounting Standards Board (FASB) Accounting Standards Update (ASU) 2015-16, Business Combinations (Topic 805): Simplifying the Accounting for Measurement-Period Adjustments

This ASU eliminates the requirement to retrospectively account for adjustments made to provisional amounts recognized in a business combination and requires that an acquirer recognize adjustments to provisional amounts that are identified during the measurement period in the reporting period in which the adjustment amounts are determined. The effect on earnings of changes in depreciation, amortization, or other income effects, if any, as a result of the change to the provisional amounts must be calculated as if the accounting had been completed at the acquisition date.

The amendments in this ASU are effective for public business entities for fiscal years beginning after December 15, 2015, including interim periods within those fiscal years. The amendments in this ASU should be applied prospectively to adjustments to provisional amounts that occur after the effective date of this ASU with earlier application permitted for financial statements that have not been issued. We adopted the guidance effective in the first quarter of 2016. The initial adoption did not have an impact on our consolidated financial position or consolidated results of operations.

8

FASB ASU 2015-03, Interest–Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs

This ASU simplifies the presentation of debt issuance costs by requiring that debt issuance costs be presented in the balance sheet as a direct deduction from the carrying amount of debt liability, consistent with debt discounts or premiums. The recognition and measurement guidance for debt issuance costs are not affected by the amendments in this update.

This ASU is effective for fiscal years beginning after December 15, 2015 for public business entities, including interim periods within those fiscal years, and is to be applied retrospectively. We adopted the guidance effective in the first quarter of 2016. The initial adoption did not have an impact on our consolidated financial position or consolidated results of operations.

FASB ASU 2015-02, Consolidation (Topic 810): Amendments to the Consolidation Analysis

This ASU improves targeted areas of consolidation guidance for reporting organizations that are required to evaluate whether they should consolidate certain legal entities. In addition to reducing the number of consolidation models from four to two, the new standard places more emphasis on risk of loss when determining a controlling financial interest, reducing the frequency of the application of related-party guidance when determining a controlling financial interest in a variable interest entity (VIE), and changing consolidation conclusions for public and private companies in several industries that typically make use of limited partnerships or VIEs.

The amendments in this ASU are effective for fiscal years beginning after December 15, 2015 for public business entities, including interim periods within those fiscal years. We adopted the guidance effective in the first quarter of 2016. The initial adoption did not have an impact on our consolidated financial position or consolidated results of operations.

Recently Issued Accounting Pronouncements

FASB ASU 2016-07, Investments—Equity Method and Joint Ventures (Topic 323): Simplifying the Transition to the Equity Method of Accounting

This ASU eliminates the requirement that when an investment qualifies for use of the equity method as a result of an increase in the level of ownership interest or degree of influence, an investor must adjust the investment, results of operations, and retained earnings retroactively on a step-by-step basis as if the equity method had been in effect during all previous periods that the investment had been held. The ASU requires that the equity method investor add the cost of acquiring the additional interest in the investee to the current basis of the investor's previously held interest and adopt the equity method of accounting as of the date the investment becomes qualified for equity method accounting. Therefore, upon qualifying for the equity method of accounting, no retroactive adjustment of the investment is required. Further, the ASU requires that an entity that has an available-for-sale equity security that becomes qualified for the equity method of accounting recognizes through earnings, the unrealized gain or loss in accumulated other comprehensive income at the date the investment becomes qualified for use of the equity method.

The amendments in this ASU are effective for all entities for fiscal years beginning after December 15, 2016, including interim periods within those fiscal years. Early adoption is permitted. We are currently evaluating the impact of the new standard and will adopt the guidance during the first quarter of 2017.

FASB ASU 2016-06, Derivatives and Hedging (Topic 815): Contingent Put and Call Options in Debt Instruments

This ASU clarifies what steps are required when assessing whether the economic characteristics and risks of call (put) options are clearly and closely related to the economic characteristics and risks of their debt hosts, which is one of the criteria for bifurcating an embedded derivative. When a call (put) option is contingently exercisable, an entity does not have to assess whether the event that triggers the ability to exercise a call (put) option is related to interest rates or credit risks.

The amendments in the ASU are effective for public business entities for fiscal years beginning after December 15, 2016, including interim periods within those fiscal years. Early adoption is permitted. We will adopt the guidance during the first quarter of 2017. BancShares does not anticipate any effect on our consolidated financial position or consolidated results of options as a result of adoption.

FASB ASU 2016-02, Leases (Topic 842)

This ASU increases transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet and disclosing key information about leasing arrangements. The key difference between existing standards and this ASU is the requirement for lessees to recognize on their balance sheet all lease contracts with lease terms greater than 12 months, including operating leases. Both a right-of-use asset, representing the right to use the leased asset, and a lease liability, representing the contractual obligation, are required to be recognized on the balance sheet of the lessee at lease commencement. Further, this ASU requires lessees to classify leases as either operating or finance leases, which are substantially similar to the current operating and capital leases classifications. The distinction between these two classifications under the new standard does not relate to balance sheet treatment, but relates to treatment in the statements of income and cash flows. Lessor guidance remains largely

9

unchanged with the exception of how a lessor determines the appropriate lease classification for each lease to better align the lessor guidance with revised lessee classification guidance.

The amendments in this ASU are effective for public business entities for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. Early adoption is permitted. We are currently evaluating the impact of the new standard and we will adopt during the first quarter of 2019.

FASB ASU 2016-01, Financial Instruments—Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities

This ASU addresses certain aspects of recognition, measurement, presentation and disclosure. The amendments in this ASU (1) require equity investments to be measured at fair value with changes in fair value recognized in net income; (2) simplify the impairment assessment of equity investments without readily determinable fair value; (3) require public business entities to use exit prices, rather than entry prices, when measuring fair value of financial instruments for disclosure purposes; (4) require separate presentation of financial assets and financial liabilities by measurement category and form of financial assets on the balance sheet or the accompanying notes to the financial statements; (5) eliminate the requirement to disclose the method(s) and significant assumptions used to estimate the fair value for financial instruments measured at amortized cost on the balance sheet; (6) require separate presentation in other comprehensive income of the portion of the total change in the fair value of a liability resulting from a change in the instrument-specific credit risk when the organization has elected to measure the liability at fair value in accordance with the fair value option for financial instruments; and (7) state that a valuation allowance on deferred tax assets related to available-for-sale securities should be evaluated in combination with other deferred tax assets.

The amendments in this ASU are effective for public business entities for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. The ASU only permits early adoption of the instrument-specific credit risk provision. We are currently evaluating the impact of the new standard and we will adopt during the first quarter of 2018.

FASB ASU 2014-09, Revenue from Contracts with Customers (Topic 606)

In May 2014, the FASB issued a standard on the recognition of revenue from contracts with customers with the core principle being for companies to recognize revenue to depict the transfer of goods or services to customers in amounts that reflect the consideration to which the company expects to be entitled in exchange for those goods or services. The new standard also results in enhanced disclosures about revenue, provides guidance for transactions that were not previously addressed comprehensively and improves guidance for multiple-element arrangements. In March 2016, the FASB issued ASU 2016-08, Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations, to improve the operability and understandability of the implementation guidance on principal versus agent considerations.

Per ASU 2015-14, Deferral of the Effective Date, this guidance was deferred and is effective for fiscal periods beginning after December 15, 2017, including interim reporting periods within that reporting period. Early adoption is permitted for fiscal periods beginning after December 15, 2016. We are currently evaluating the impact of the new standard and we will adopt during the first quarter of 2018 using one of two retrospective application methods.

NOTE B - BUSINESS COMBINATIONS

North Milwaukee State Bank

On March 11, 2016, FCB entered into an agreement with the Federal Deposit Insurance Corporation (FDIC), as Receiver, to purchase certain assets and assume certain liabilities of North Milwaukee State Bank (NMSB) of Milwaukee, Wisconsin. The acquisition provided FCB with value enhancement.

The NMSB transaction was accounted for under the acquisition method of accounting and, accordingly, assets acquired and liabilities assumed were recorded at their estimated fair values on the acquisition date. Fair values are preliminary and subject to refinement for up to one year after the closing date of the acquisition as additional information regarding closing date fair values becomes available.

The fair value of the assets acquired was $52.4 million, including $35.4 million in loans and $240 thousand of identifiable intangible assets. Liabilities assumed were $60.9 million of which $59.2 million were deposits. As a result of the transaction, FCB recorded a gain on the acquisition of $1.7 million which is included in noninterest income in the Consolidated Statements of Income.

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The following table provides the identifiable assets acquired and liabilities assumed at their estimated fair values as of the acquisition date.

(Dollars in thousands)	As recorded by FCB
Assets
Cash and cash equivalents	$	4,545
Overnight investments	2,274
Investment securities	9,425
Loans	35,416
Other real estate owned	330
Intangible assets	240
Other assets	216
Total assets acquired	52,446
Liabilities
Deposits	59,206
Short-term borrowings	1,662
Other liabilities	74
Total liabilities assumed	60,942
Fair value of net liabilities assumed	(8,496		)
Cash received from FDIC	10,200
Gain on acquisition of NMSB	$	1,704

Merger-related expenses of $38 thousand were recorded in the Consolidated Statements of Income for the three months ended March 31, 2016. Loan-related interest income generated from NMSB was approximately $123 thousand since the acquisition date.

All loans resulting from the NMSB transaction were recorded at the acquisition date with a discount attributable, at least in part, to credit quality, and are therefore accounted for as purchased credit-impaired (PCI) loans under ASC 310-30.

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NOTE C - INVESTMENTS

The amortized cost and fair value of investment securities classified as available for sale and held to maturity at March 31, 2016 and December 31, 2015, are as follows:

	March 31, 2016
(Dollars in thousands)	Cost		Gross unrealized gains		Gross unrealized losses		Fair value
Investment securities available for sale
U.S. Treasury	$	1,538,907	$	2,308	$	—	$	1,541,215
Government agency	355,488		669		—		356,157
Mortgage-backed securities	4,693,313		37,375		3,406		4,727,282
Equity securities	50,066		2,314		285		52,095
Other	10,615		—		75		10,540
Total investment securities available for sale	$	6,648,389	$	42,666	$	3,766	$	6,687,289
	December 31, 2015
	Cost		Gross unrealized gains		Gross unrealized losses		Fair value
U.S. Treasury	$	1,675,996	$	4	$	1,118	$	1,674,882
Government agency	498,804		230		374		498,660
Mortgage-backed securities	4,692,447		5,120		29,369		4,668,198
Equity securities	7,935		968		10		8,893
Other	10,615		45		—		10,660
Total investment securities available for sale	$	6,885,797	$	6,367	$	30,871	$	6,861,293
	March 31, 2016
	Cost		Gross unrealized gains		Gross unrealized losses		Fair value
Investment securities held to maturity
Mortgage-backed securities	$	194	$	9	$	—	$	203
	December 31, 2015
	Cost		Gross unrealized gains		Gross unrealized losses		Fair value
Mortgage-backed securities	$	255	$	10	$	—	$	265

Investments in mortgage-backed securities primarily represent securities issued by the Government National Mortgage Association, Federal National Mortgage Association and Federal Home Loan Mortgage Corporation.The following table provides the amortized cost and fair value by contractual maturity. Expected maturities will differ from contractual maturities on certain securities because borrowers and issuers may have the right to call or prepay obligations with or without prepayment penalties. Repayments of mortgage-backed securities are dependent on the repayments of the underlying loan balances. Equity securities do not have a stated maturity date.

	March 31, 2016				December 31, 2015
(Dollars in thousands)	Cost		Fair value		Cost		Fair value
Investment securities available for sale
Non-amortizing securities maturing in:
One year or less	$	1,554,483	$	1,556,414	$	1,255,714	$	1,255,094
One through five years	339,912		340,958		919,086		918,448
Five through 10 years	8,500		8,500		8,500		8,500
Over 10 years	2,115		2,040		2,115		2,160
Mortgage-backed securities	4,693,313		4,727,282		4,692,447		4,668,198
Equity securities	50,066		52,095		7,935		8,893
Total investment securities available for sale	$	6,648,389	$	6,687,289	$	6,885,797	$	6,861,293
Investment securities held to maturity
Mortgage-backed securities held to maturity	$	194	$	203	$	255	$	265

12

For each period presented, securities gains (losses) included the following:

	Three months ended March 31
(Dollars in thousands)	2016			2015
Gross gains on sales of investment securities available for sale	$	4,933		$	5,135
Gross losses on sales of investment securities available for sale	(305		)	(9		)
Total securities gains	$	4,628		$	5,126

The following table provides information regarding securities with unrealized losses as of March 31, 2016 and December 31, 2015.

	March 31, 2016
	Less than 12 months				12 months or more				Total
(Dollars in thousands)	Fair value		Unrealized losses		Fair value		Unrealized losses		Fair value		Unrealized losses
Investment securities available for sale:
Mortgage-backed securities	$	417,711	$	1,071	$	291,021	$	2,335	$	708,732	$	3,406
Equity securities	13,037		285		—		—		13,037		285
Other	2,040		75		—		—		2,040		75
Total	$	432,788	$	1,431	$	291,021	$	2,335	$	723,809	$	3,766
	December 31, 2015
	Less than 12 months				12 months or more				Total
	Fair value		Unrealized losses		Fair value		Unrealized losses		Fair value		Unrealized losses
Investment securities available for sale:
U.S. Treasury	$	1,539,637	$	1,118	$	—	$	—	$	1,539,637	$	1,118
Government agency	229,436		374		—		—		229,436		374
Mortgage-backed securities	3,570,470		23,275		280,126		6,094		3,850,596		29,369
Equity securities	728		10		—		—		728		10
Total	$	5,340,271	$	24,777	$	280,126	$	6,094	$	5,620,397	$	30,871

Investment securities with an aggregate fair value of $291.0 million and $280.1 million had continuous unrealized losses for more than 12 months with a corresponding aggregate unrealized loss of $2.3 million and $6.1 million as of March 31, 2016 and December 31, 2015, respectively. As of March 31, 2016, all 52 of these investments are government sponsored enterprise-issued mortgage-backed securities. None of the unrealized losses identified as of March 31, 2016 or December 31, 2015 relate to the marketability of the securities or the issuer’s ability to honor redemption obligations. Rather, the unrealized losses relate to changes in interest rates relative to when the investment securities were purchased. For all periods presented, BancShares had the ability and intent to retain these securities for a period of time sufficient to recover all unrealized losses. Therefore, none of the securities were deemed to be other than temporarily impaired.

Investment securities having an aggregate carrying value of $4.94 billion at March 31, 2016 and $4.73 billion at December 31, 2015 were pledged as collateral to secure public funds on deposit and certain short-term borrowings, and for other purposes as required by law.

13

NOTE D - LOANS AND LEASES

BancShares' accounting methods for loans and leases differ depending on whether they are purchased credit-impaired (PCI) or non-PCI. Non-PCI loans and leases include originated commercial, originated noncommercial, purchased non-impaired loans, purchased leases and certain purchased revolving credit. For purchased non-impaired loans to be included as non-PCI, it must be determined that the loans do not have a discount due, at least in part, to credit quality at the time of acquisition. Conversely, loans for which it is probable at acquisition that all required payments will not be collected in accordance with contractual terms are considered PCI loans. PCI loans are evaluated at acquisition and where a discount is required at least in part due to credit quality, the nonrevolving loans are accounted for under the guidance in ASC Topic 310-30, Loans and Debt Securities Acquired with Deteriorated Credit Quality. PCI loans and leases are recorded at fair value at the date of acquisition. No allowance for loan and lease losses is recorded on the acquisition date as the fair value of the acquired assets incorporates assumptions regarding credit risk. An allowance is recorded if there is additional credit deterioration after the acquisition date.

BancShares reports PCI and non-PCI loan portfolios separately, and each portfolio is further divided into commercial and non-commercial based on the type of borrower, purpose, collateral, and/or our underlying credit management processes. Additionally, loans are assigned to loan classes, which further disaggregate loans based upon common risk characteristics.

Commercial –Commercial loans include construction and land development, mortgage, other commercial real estate, commercial and industrial, lease financing and other.

Construction and land development – Construction and land development consists of loans to finance land for development, investment, and use in a commercial business enterprise; multifamily apartments; and other commercial buildings that may be owner-occupied or income generating investments for the owner.

Commercial mortgage – Commercial mortgage consists of loans to purchase or refinance owner-occupied nonresidential and investment properties. Investment properties include office buildings and other facilities that are rented or leased to unrelated parties.

Other commercial real estate – Other commercial real estate consists of loans secured by farmland (including residential farms and other improvements) and multifamily (5 or more) residential properties.

Commercial and industrial – Commercial and industrial consists of loans or lines of credit to finance corporate credit cards, accounts receivable, inventory and other general business purposes.

Lease financing – Lease financing consists solely of lease financing agreements for business equipment, vehicles and other assets.

Other – Other consists of all other commercial loans not classified in one of the preceding classes. These typically include loans to non-profit organizations such as churches, hospitals, educational and charitable organizations.

Noncommercial – Noncommercial consist of residential and revolving mortgage, construction and land development, and consumer loans.

Residential mortgage – Residential real estate consists of loans to purchase, construct or refinance the borrower's primary dwelling, second residence or vacation home.

Revolving mortgage – Revolving mortgage consists of home equity lines of credit that are secured by first or second liens on the borrower's primary residence.

Construction and land development – Construction and land development consists of loans to construct the borrower's primary or secondary residence or vacant land upon which the owner intends to construct a dwelling at a future date.

Consumer – Consumer loans consist of installment loans to finance purchases of vehicles, unsecured home improvements and revolving lines of credit that can be secured or unsecured, including personal credit cards.

14

Loans and leases outstanding included the following at March 31, 2016 and December 31, 2015:

(Dollars in thousands)	March 31, 2016		December 31, 2015
Non-PCI loans and leases:
Commercial:
Construction and land development	$	626,311	$	620,352
Commercial mortgage	8,353,631		8,274,548
Other commercial real estate	324,858		321,021
Commercial and industrial	2,389,946		2,368,958
Lease financing	751,292		730,778
Other	343,877		314,832
Total commercial loans	12,789,915		12,630,489
Noncommercial:
Residential mortgage	2,718,208		2,695,985
Revolving mortgage	2,521,902		2,523,106
Construction and land development	213,232		220,073
Consumer	1,228,545		1,219,821
Total noncommercial loans	6,681,887		6,658,985
Total non-PCI loans and leases	19,471,802		19,289,474
PCI loans:
Commercial:
Construction and land development	32,799		33,880
Commercial mortgage	526,776		525,468
Other commercial real estate	18,050		17,076
Commercial and industrial	14,742		15,182
Other	1,860		2,008
Total commercial loans	594,227		593,614
Noncommercial:
Residential mortgage	298,662		302,158
Revolving mortgage	50,574		52,471
Consumer	2,424		2,273
Total noncommercial loans	351,660		356,902
Total PCI loans	945,887		950,516
Total loans and leases	$	20,417,689	$	20,239,990

At March 31, 2016, $258.2 million of total loans and leases were covered under loss share agreements, compared to $272.6 million at December 31, 2015. Loss share protection for United Western Bank (UWB), Atlantic Bank & Trust (ABT) and Colorado Capital Bank (CCB) non-single family residential loans with balances of $113.7 million, $9.0 million and $2.7 million at March 31, 2016 will expire at the beginning of the second quarter of 2016, third quarter of 2016 and fourth quarter of 2016, respectively.

At March 31, 2016, $8.51 billion in noncovered loans with a lendable collateral value of $6.08 billion were used to secure $585.3 million in Federal Home Loan Bank (FHLB) of Atlanta advances, resulting in additional borrowing capacity of $5.50 billion. At December 31, 2015, $8.58 billion in noncovered loans with a lendable collateral value of $6.08 billion were used to secure $510.3 million in FHLB of Atlanta advances, resulting additional borrowing capacity of $5.57 billion.

Net deferred fees on originated non-PCI loans and leases, including unearned income and unamortized costs, fees, premiums and discounts, were $13.2 million and $16.6 million at March 31, 2016 and December 31, 2015, respectively. The unamortized discount related to the non-PCI loans and leases acquired in the First Citizens Bancorporation, Inc. (Bancorporation) merger was $37.9 million and $41.1 million at March 31, 2016 and December 31, 2015, respectively. During the three months ended March 31, 2016 and March 31, 2015, accretion income on non-PCI loans was $3.2 million and $5.6 million, respectively.

15

Credit quality indicators

Loans and leases are monitored for credit quality on a recurring basis. The credit quality indicators used are dependent on the portfolio segment to which the loan relates. Commercial and noncommercial loans and leases have different credit quality indicators as a result of the unique characteristics of the loan segment being evaluated. The credit quality indicators for non-PCI and PCI commercial loans and leases are developed through a review of individual borrowers on an ongoing basis. Each commercial loan is evaluated annually with more frequent evaluation of more severely criticized loans or leases. The credit quality indicators for non-PCI and PCI noncommercial loans are based on the delinquency status of the borrower. As the borrower becomes more delinquent, the likelihood of loss increases. The indicators represent the rating for loans or leases as of the date presented based on the most recent assessment performed. These credit quality indicators are defined as follows:

Pass – A pass rated asset is not adversely classified because it does not display any of the characteristics for adverse classification.

Special mention – A special mention asset has potential weaknesses that deserve management’s close attention. If left uncorrected, such potential weaknesses may result in deterioration of the repayment prospects or collateral position at some future date. Special mention assets are not adversely classified and do not warrant adverse classification.

Substandard – A substandard asset is inadequately protected by the current net worth and paying capacity of the borrower or of the collateral pledged, if any. Assets classified as substandard generally have a well-defined weakness, or weaknesses, that jeopardize the liquidation of the debt. These assets are characterized by the distinct possibility of loss if the deficiencies are not corrected.

Doubtful – An asset classified as doubtful has all the weaknesses inherent in an asset classified substandard with the added characteristic that the weaknesses make collection or liquidation in full highly questionable and improbable on the basis of currently existing facts, conditions and values.

Loss – Assets classified as loss are considered uncollectible and of such little value that it is inappropriate to be carried as an asset. This classification is not necessarily equivalent to no potential for recovery or salvage value, but rather that it is not appropriate to defer a full charge-off even though partial recovery may be effected in the future.

Ungraded – Ungraded loans represent loans that are not included in the individual credit grading process due to their relatively small balances or borrower type. The majority of ungraded loans at March 31, 2016 and December 31, 2015 relate to business credit cards. Business credit card loans are subject to automatic charge-off when they become 120 days past due in the same manner as unsecured consumer lines of credit. The remaining balance is comprised of a small amount of commercial mortgage and other commercial real estate loans.

16

Non-PCI loans and leases outstanding at March 31, 2016 and December 31, 2015 by credit quality indicator are provided below:

	March 31, 2016
(Dollars in thousands)	Non-PCI commercial loans and leases
Grade:	Construction  and land development		Commercial mortgage		Other commercial real estate		Commercial  and industrial		Lease financing		Other		Total non-PCI commercial loans and leases
Pass	$	622,312	$	8,102,908	$	321,375	$	2,241,626	$	744,585	$	341,300	$	12,374,106
Special mention	1,926		97,425		1,294		14,003		3,698		1,334		119,680
Substandard	2,073		149,651		1,030		20,070		2,639		1,243		176,706
Doubtful	—		458		—		399		46		—		903
Ungraded	—		3,189		1,159		113,848		324		—		118,520
Total	$	626,311	$	8,353,631	$	324,858	$	2,389,946	$	751,292	$	343,877	$	12,789,915
	December 31, 2015
	Non-PCI commercial loans and leases
	Construction  and land development		Commercial mortgage		Other commercial real estate		Commercial  and industrial		Lease financing		Other		Total non-PCI commercial loans and leases
Pass	$	611,314	$	8,024,831	$	318,187	$	2,219,606	$	719,338	$	311,401	$	12,204,677
Special mention	5,191		100,220		475		19,361		4,869		1,905		132,021
Substandard	3,847		146,071		959		21,322		6,375		1,526		180,100
Doubtful	—		599		—		408		169		—		1,176
Ungraded	—		2,827		1,400		108,261		27		—		112,515
Total	$	620,352	$	8,274,548	$	321,021	$	2,368,958	$	730,778	$	314,832	$	12,630,489

	March 31, 2016
	Non-PCI noncommercial loans and leases
(Dollars in thousands)	Residential mortgage		Revolving mortgage		Construction and land development		Consumer		Total non-PCI noncommercial loans and leases
Current	$	2,673,451	$	2,501,519	$	208,944	$	1,220,091	$	6,604,005
30-59 days past due	24,701		11,219		3,121		5,339		44,380
60-89 days past due	7,041		2,396		325		1,722		11,484
90 days or greater past due	13,015		6,768		842		1,393		22,018
Total	$	2,718,208	$	2,521,902	$	213,232	$	1,228,545	$	6,681,887
	December 31, 2015
	Non-PCI noncommercial loans and leases
	Residential mortgage		Revolving mortgage		Construction and land development		Consumer		Total non-PCI noncommercial loans and leases
Current	$	2,651,209	$	2,502,065	$	214,555	$	1,210,832	$	6,578,661
30-59 days past due	23,960		11,706		3,211		5,545		44,422
60-89 days past due	7,536		3,704		669		1,822		13,731
90 days or greater past due	13,280		5,631		1,638		1,622		22,171
Total	$	2,695,985	$	2,523,106	$	220,073	$	1,219,821	$	6,658,985

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PCI loans outstanding at March 31, 2016 and December 31, 2015 by credit quality indicator are provided below:

	March 31, 2016
(Dollars in thousands)	PCI commercial loans
Grade:	Construction and land development		Commercial mortgage		Other commercial real estate		Commercial and industrial		Other		Total PCI commercial loans
Pass	$	12,797	$	261,904	$	8,500	$	8,595	$	623	$	292,419
Special mention	1,781		87,801		59		548		—		90,189
Substandard	14,056		159,083		9,081		4,292		1,237		187,749
Doubtful	4,165		17,656		—		1,240		—		23,061
Ungraded	—		332		410		67		—		809
Total	$	32,799	$	526,776	$	18,050	$	14,742	$	1,860	$	594,227
	December 31, 2015
	PCI commercial loans
	Construction and land development		Commercial mortgage		Other commercial real estate		Commercial and industrial		Other		Total PCI commercial loans
Pass	$	14,710	$	262,579	$	7,366	$	9,302	$	706	$	294,663
Special mention	758		87,870		60		937		—		89,625
Substandard	14,131		163,801		9,229		4,588		1,302		193,051
Doubtful	4,281		10,875		—		282		—		15,438
Ungraded	—		343		421		73		—		837
Total	$	33,880	$	525,468	$	17,076	$	15,182	$	2,008	$	593,614

	March 31, 2016
	PCI noncommercial loans
(Dollars in thousands)	Residential mortgage		Revolving mortgage		Consumer		Total PCI noncommercial loans
Current	$	261,230	$	44,401	$	2,254	$	307,885
30-59 days past due	10,307		1,544		123		11,974
60-89 days past due	3,191		1,306		45		4,542
90 days or greater past due	23,934		3,323		2		27,259
Total	$	298,662	$	50,574	$	2,424	$	351,660
	December 31, 2015
	PCI noncommercial loans
	Residential mortgage		Revolving mortgage		Consumer		Total PCI noncommercial loans
Current	$	257,207	$	47,901	$	1,981	$	307,089
30-59 days past due	12,318		1,127		86		13,531
60-89 days past due	4,441		501		132		5,074
90 days or greater past due	28,192		2,942		74		31,208
Total	$	302,158	$	52,471	$	2,273	$	356,902

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The aging of the outstanding non-PCI loans and leases, by class, at March 31, 2016 and December 31, 2015 is provided in the table below.

The calculation of days past due begins on the day after payment is due and includes all days through which all required interest or principal has not been paid. Loans and leases 30 days or less past due are considered current as various grace periods allow borrowers to make payments within a stated period after the due date and still remain in compliance with the loan agreement.

	March 31, 2016
(Dollars in thousands)	30-59 days past due		60-89 days past due		90 days or greater		Total past due		Current		Total loans and leases
Non-PCI loans and leases:
Construction and land development - commercial	$	1,039	$	9	$	312	$	1,360	$	624,951	$	626,311
Commercial mortgage	14,243		1,817		17,637		33,697		8,319,934		8,353,631
Other commercial real estate	1,144		248		27		1,419		323,439		324,858
Commercial and industrial	7,874		2,049		1,194		11,117		2,378,829		2,389,946
Lease financing	712		202		44		958		750,334		751,292
Residential mortgage	24,701		7,041		13,015		44,757		2,673,451		2,718,208
Revolving mortgage	11,219		2,396		6,768		20,383		2,501,519		2,521,902
Construction and land development - noncommercial	3,121		325		842		4,288		208,944		213,232
Consumer	5,339		1,722		1,393		8,454		1,220,091		1,228,545
Other	107		—		333		440		343,437		343,877
Total non-PCI loans and leases	$	69,499	$	15,809	$	41,565	$	126,873	$	19,344,929	$	19,471,802
	December 31, 2015
	30-59 days past due		60-89 days past due		90 days or greater		Total past due		Current		Total loans and leases
Non-PCI loans and leases:
Construction and land development - commercial	$	987	$	283	$	463	$	1,733	$	618,619	$	620,352
Commercial mortgage	13,023		3,446		14,495		30,964		8,243,584		8,274,548
Other commercial real estate	884		—		142		1,026		319,995		321,021
Commercial and industrial	2,133		1,079		1,780		4,992		2,363,966		2,368,958
Lease financing	2,070		2		164		2,236		728,542		730,778
Residential mortgage	23,960		7,536		13,280		44,776		2,651,209		2,695,985
Revolving mortgage	11,706		3,704		5,631		21,041		2,502,065		2,523,106
Construction and land development - noncommercial	3,211		669		1,638		5,518		214,555		220,073
Consumer	5,545		1,822		1,622		8,989		1,210,832		1,219,821
Other	3		164		134		301		314,531		314,832
Total non-PCI loans and leases	$	63,522	$	18,705	$	39,349	$	121,576	$	19,167,898	$	19,289,474

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The recorded investment, by class, in loans and leases on nonaccrual status, and loans and leases greater than 90 days past due and still accruing at March 31, 2016 and December 31, 2015 for non-PCI loans and leases, were as follows:

	March 31, 2016				December 31, 2015
(Dollars in thousands)	Nonaccrual loans and leases		Loans and leases > 90 days and accruing		Nonaccrual loans and leases		Loans and leases > 90 days and accruing
Non-PCI loans and leases:
Construction and land development - commercial	$	534	$	23	$	425	$	273
Commercial mortgage	35,861		2,671		42,116		242
Other commercial real estate	134		—		239		—
Commercial and industrial	4,127		680		6,235		953
Lease financing	254		—		389		—
Residential mortgage	31,262		561		29,977		838
Revolving mortgage	14,159		—		12,704		—
Construction and land development - noncommercial	2,224		—		2,164		—
Consumer	1,632		792		1,472		1,007
Other	268		155		133		2
Total non-PCI loans and leases	$	90,455	$	4,882	$	95,854	$	3,315

Purchased credit-impaired loans (PCI) loans

The following table relates to PCI loans acquired in the NMSB acquisition and summarizes the contractually required payments, which include principal and interest, expected cash flows to be collected, and the fair value of PCI loans and leases at the acquisition date.

(Dollars in thousands)
Contractually required payments	$	51,098
Cash flows expected to be collected	$	41,592
Fair value of loans at acquisition	$	35,416

The recorded fair values of PCI loans acquired in the NMSB acquisition as of the acquisition date were as follows:

(Dollars in thousands)
Commercial:
Construction and land development	$	139
Commercial mortgage	25,237
Other commercial real estate	1,479
Commercial and industrial	1,520
Total commercial loans	28,375
Noncommercial:
Residential mortgage	6,128
Revolving mortgage	234
Consumer	679
Total noncommercial loans	7,041
Total PCI loans and leases	$	35,416

The following table provides changes in the carrying value of all purchased credit-impaired loans during the three months ended March 31, 2016 and March 31, 2015:

(Dollars in thousands)	2016			2015
Balance at January 1	$	950,516		$	1,186,498
Fair value of acquired loans	35,416			154,496
Accretion	21,398			25,067
Payments received and other changes, net	(61,443		)	(113,516		)
Balance at March 31	$	945,887		$	1,252,545
Unpaid principal balance at March 31	$	1,665,896		$	2,092,936

The carrying value of loans on the cost recovery method was $1.1 million at March 31, 2016 and $5.3 million at December 31, 2015. The cost recovery method is applied to loans when the timing of future cash flows is not reasonably estimable due to

20

borrower nonperformance or uncertainty in the ultimate disposition of the asset. The recorded investment of PCI loans on nonaccrual status was $7.3 million and $7.6 million at March 31, 2016 and December 31, 2015, respectively.

For PCI loans, improved credit loss expectations generally result in the reclassification of nonaccretable difference to accretable yield. Changes in expected cash flows not related to credit improvements or deterioration do not affect the nonaccretable difference.

The following table documents changes to the amount of accretable yield for the first three months of 2016 and 2015.

(Dollars in thousands)	2016			2015
Balance at January 1	$	343,856		$	418,160
Additions from acquisitions	6,176			55,186
Accretion	(21,398		)	(25,067		)
Reclassifications from nonaccretable difference	9,905			1,294
Changes in expected cash flows that do not affect nonaccretable difference	4,418			(27,287		)
Balance at March 31	$	342,957		$	422,286

NOTE E - ALLOWANCE FOR LOAN AND LEASE LOSSES (ALLL)

The following tables present the activity in the ALLL for non-PCI loan and lease losses by loan class for the three months ended March 31, 2016 and March 31, 2015:

	Three months ended March 31, 2016
(Dollars in thousands)	Construction and land development - commercial			Commercial mortgage			Other commercial real estate			Commercial and industrial			Lease financing			Other			Residential mortgage			Revolving mortgage			Construction and land development - non- commercial			Consumer			Total
Non-PCI Loans
Allowance for loan and lease losses:
Balance at January 1	$	16,288		$	69,896		$	2,168		$	43,116		$	5,524		$	1,855		$	14,105		$	15,971		$	1,485		$	19,496		$	189,904
Provision	943			394			(104		)	2,201			(282		)	(328		)	776			1,158			87			1,995			6,840
Charge-offs	(426		)	(90		)	—			(1,317		)	—			(71		)	(174		)	(1,036		)	—			(3,108		)	(6,222		)
Recoveries	80			256			143			479			180			321			20			32			3			990			2,504
Balance at March 31	$	16,885		$	70,456		$	2,207		$	44,479		$	5,422		$	1,777		$	14,727		$	16,125		$	1,575		$	19,373		$	193,026
	Three months ended March 31, 2015
	Construction and land development - commercial			Commercial mortgage			Other commercial real estate			Commercial and industrial			Lease financing			Other			Residential mortgage			Revolving mortgage			Construction and land development - non- commercial			Consumer			Total
Balance at January 1	$	11,961		$	85,189		$	732		$	30,727		$	4,286		$	3,184		$	10,661		$	18,650		$	892		$	16,555		$	182,837
Provision	1,103			(3,679		)	458			7,546			11			(218		)	813			(462		)	118			2,966			8,656
Charge-offs	(18		)	(233		)	(169		)	(1,713		)	(15		)	—			(284		)	(793		)	(22		)	(2,783		)	(6,030		)
Recoveries	62			761			10			394			11			15			138			134			68			878			2,471
Balance at March 31	$	13,108		$	82,038		$	1,031		$	36,954		$	4,293		$	2,981		$	11,328		$	17,529		$	1,056		$	17,616		$	187,934

21

The following tables present the allowance for non-PCI loan losses and the recorded investment in loans, by loan class, based on impairment method as of March 31, 2016 and December 31, 2015:

	March 31, 2016
(Dollars in thousands)	Construction and land development - commercial		Commercial mortgage		Other commercial real estate		Commercial and industrial		Lease financing		Other		Residential mortgage		Revolving mortgage		Construction and land development - non-commercial		Consumer		Total
Allowance for loan and lease losses:
ALLL for loans and leases individually evaluated for impairment	$	83	$	3,467	$	282	$	650	$	191	$	49	$	1,203	$	310	$	27	$	514	$	6,776
ALLL for loans and leases collectively evaluated for impairment	16,802		66,989		1,925		43,829		5,231		1,728		13,524		15,815		1,548		18,859		186,250
Total allowance for loan and lease losses	$	16,885	$	70,456	$	2,207	$	44,479	$	5,422	$	1,777	$	14,727	$	16,125	$	1,575	$	19,373	$	193,026
Loans and leases:
Loans and leases individually evaluated for impairment	$	3,247	$	88,448	$	418	$	13,720	$	1,528	$	960	$	24,025	$	6,594	$	416	$	1,324	$	140,680
Loans and leases collectively evaluated for impairment	623,064		8,265,183		324,440		2,376,226		749,764		342,917		2,694,183		2,515,308		212,816		1,227,221		19,331,122
Total loan and leases	$	626,311	$	8,353,631	$	324,858	$	2,389,946	$	751,292	$	343,877	$	2,718,208	$	2,521,902	$	213,232	$	1,228,545	$	19,471,802
	December 31, 2015
(Dollars in thousands)	Construction and land development - commercial		Commercial mortgage		Other commercial real estate		Commercial and industrial		Lease financing		Other		Residential mortgage		Revolving mortgage		Construction and land development - non-commercial		Consumer		Total
Allowance for loan and lease losses:
ALLL for loans and leases individually evaluated for impairment	$	123	$	3,370	$	289	$	1,118	$	213	$	—	$	1,212	$	299	$	49	$	527	$	7,200
ALLL for loans and leases collectively evaluated for impairment	16,165		66,526		1,879		41,998		5,311		1,855		12,893		15,672		1,436		18,969		182,704
Total allowance for loan and lease losses	$	16,288	$	69,896	$	2,168	$	43,116	$	5,524	$	1,855	$	14,105	$	15,971	$	1,485	$	19,496	$	189,904
Loans and leases:
Loans and leases individually evaluated for impairment	$	3,094	$	95,107	$	427	$	17,910	$	1,755	$	1,183	$	22,986	$	5,883	$	784	$	1,238	$	150,367
Loans and leases collectively evaluated for impairment	617,258		8,179,441		320,594		2,351,048		729,023		313,649		2,672,999		2,517,223		219,289		1,218,583		19,139,107
Total loan and leases	$	620,352	$	8,274,548	$	321,021	$	2,368,958	$	730,778	$	314,832	$	2,695,985	$	2,523,106	$	220,073	$	1,219,821	$	19,289,474

22

The following tables show the activity in the allowance for PCI loan and lease losses by loan class for the three months ended March 31, 2016 and March 31, 2015.

	Three months ended March 31, 2016
(Dollars in thousands)	Construction and land development - commercial			Commercial mortgage			Other commercial real estate			Commercial and industrial			Residential mortgage			Revolving mortgage			Construction and land development - noncommercial			Consumer and other			Total
PCI Loans
Allowance for loan and lease losses:
Balance at January 1	$	1,082		$	7,838		$	773		$	445		$	5,398		$	523		$	—		$	253		$	16,312
Provision	(349		)	(980		)	2			(220		)	(347		)	(108		)	—			5			(1,997		)
Charge-offs	—			(108		)	(5		)	—			(371		)	—			—			(74		)	(558		)
Recoveries	—			—			—			—			—			—			—			—			—
Balance at March 31	$	733		$	6,750		$	770		$	225		$	4,680		$	415		$	—		$	184		$	13,757
	Three months ended March 31, 2015
(Dollars in thousands)	Construction and land development - commercial			Commercial mortgage			Other commercial real estate			Commercial and industrial			Residential mortgage			Revolving mortgage			Construction and land development - noncommercial			Consumer and other			Total
Balance at January 1	$	150		$	10,135		$	75		$	1,240		$	5,820		$	3,999		$	183		$	27		$	21,629
Provision	191			(925		)	119			(1,031		)	(863		)	(655		)	(152		)	452			(2,864		)
Charge-offs	—			(334		)	—			(198		)	(85		)	(73		)	—			(456		)	(1,146		)
Recoveries	—			—			—			—			—			—			—			—			—
Balance at March 31	$	341		$	8,876		$	194		$	11		$	4,872		$	3,271		$	31		$	23		$	17,619

The following tables show the ending balances of PCI loans and leases and related allowance by class of loans as of March 31, 2016 and December 31, 2015:

	March 31, 2016
(Dollars in thousands)	Construction and land development - commercial		Commercial mortgage		Other commercial real estate		Commercial and industrial		Residential mortgage		Revolving mortgage		Consumer and other		Total
ALLL for loans and leases acquired with deteriorated credit quality	$	733	$	6,750	$	770	$	225	$	4,680	$	415	$	184	$	13,757
Loans and leases acquired with deteriorated credit quality	32,799		526,776		18,050		14,742		298,662		50,574		4,284		945,887
	December 31, 2015
(Dollars in thousands)	Construction and land development - commercial		Commercial mortgage		Other commercial real estate		Commercial and industrial		Residential mortgage		Revolving mortgage		Consumer and other		Total
ALLL for loans and leases acquired with deteriorated credit quality	$	1,082	$	7,838	$	773	$	445	$	5,398	$	523	$	253	$	16,312
Loans and leases acquired with deteriorated credit quality	33,880		525,468		17,076		15,182		302,158		52,471		4,281		950,516

As of March 31, 2016, and December 31, 2015, $479.2 million and $469.3 million, respectively, in PCI loans experienced an adverse change in expected cash flows since the date of acquisition. The corresponding valuation reserve was $13.8 million and $16.3 million, respectively.

23

The following tables provide information on non-PCI impaired loans and leases, exclusive of loans and leases evaluated collectively as a homogeneous group, as of March 31, 2016 and December 31, 2015 including interest income recognized in the period during which the loans and leases were considered impaired.

	March 31, 2016
(Dollars in thousands)	With a recorded allowance		With no recorded allowance		Total		Unpaid principal balance		Related allowance recorded
Non-PCI impaired loans and leases:
Construction and land development - commercial	$	1,356	$	1,891	$	3,247	$	4,602	$	83
Commercial mortgage	37,464		50,984		88,448		97,320		3,467
Other commercial real estate	297		121		418		858		282
Commercial and industrial	5,356		8,364		13,720		16,692		650
Lease financing	1,304		224		1,528		1,577		191
Other	898		62		960		1,037		49
Residential mortgage	10,001		14,024		24,025		24,989		1,203
Revolving mortgage	1,059		5,535		6,594		8,049		310
Construction and land development - noncommercial	416		—		416		416		27
Consumer	962		362		1,324		1,401		514
Total non-PCI impaired loans and leases	$	59,113	$	81,567	$	140,680	$	156,941	$	6,776
	December 31, 2015
(Dollars in thousands)	With a recorded allowance		With no recorded allowance		Total		Unpaid principal balance		Related allowance recorded
Non-PCI impaired loans and leases:
Construction and land development - commercial	$	1,623	$	1,471	$	3,094	$	4,428	$	123
Commercial mortgage	41,793		53,314		95,107		103,763		3,370
Other commercial real estate	305		122		427		863		289
Commercial and industrial	8,544		9,366		17,910		21,455		1,118
Lease financing	1,651		104		1,755		1,956		213
Other	—		1,183		1,183		1,260		—
Residential mortgage	10,097		12,889		22,986		25,043		1,212
Revolving mortgage	1,105		4,778		5,883		7,120		299
Construction and land development - noncommercial	693		91		784		784		49
Consumer	1,050		188		1,238		1,294		527
Total non-PCI impaired loans and leases	$	66,861	$	83,506	$	150,367	$	167,966	$	7,200

The following tables show the average non-PCI impaired loan balance and the interest income recognized by loan class for the three months ended March 31, 2016 and March 31, 2015:

	Three months ended March 31, 2016				Three months ended March 31, 2015
(Dollars in thousands)	Average balance		Interest income recognized		Average balance		Interest income recognized
Non-PCI impaired loans and leases:
Construction and land development - commercial	$	3,164	$	41	$	3,052	$	35
Commercial mortgage	92,945		766		80,553		769
Other commercial real estate	423		5		551		1
Commercial and industrial	15,551		151		14,229		103
Lease financing	1,657		20		1,590		18
Other	1,072		14		1,990		—
Residential mortgage	23,500		172		15,364		125
Revolving mortgage	6,309		32		2,986		16
Construction and land development - noncommercial	556		6		658		7
Consumer	1,265		18		1,022		19
Total non-PCI impaired loans and leases	$	146,442	$	1,225	$	121,995	$	1,093

24

Troubled Debt Restructurings

BancShares accounts for certain loan modifications or restructurings as troubled debt restructurings (TDRs). In general, the modification or restructuring of a loan is considered a TDR if, for economic reasons or legal reasons related to a borrower's financial difficulties, a concession is granted to the borrower that creditors would not otherwise grant. Concessions may relate to the contractual interest rate, maturity date, payment structure or other actions. In accordance with GAAP, acquired loans accounted for under ASC 310-30, Loans and Debt Securities Acquired with Deteriorated Credit Quality, are not initially considered to be TDRs, but can be classified as such if a modification is made subsequent to acquisition. Subsequent modifications of a PCI loan accounted for in a pool that would otherwise meet the definition of a TDR is not reported, or accounted for, as a TDR since pooled PCI loans are excluded from the scope of TDR accounting.

The following table provides a summary of total TDRs by accrual status.

	March 31, 2016						December 31, 2015
(Dollars in thousands)	Accruing		Nonaccruing		Total		Accruing		Nonaccruing		Total
Commercial loans
Construction and land development - commercial	$	3,637	$	268	$	3,905	$	3,624	$	257	$	3,881
Commercial mortgage	66,385		17,588		83,973		65,812		18,728		84,540
Other commercial real estate	1,614		84		1,698		1,751		89		1,840
Commercial and industrial	8,139		783		8,922		8,833		3,341		12,174
Lease	1,136		46		1,182		1,191		169		1,360
Other	960		—		960		1,183		—		1,183
Total commercial TDRs	81,871		18,769		100,640		82,394		22,584		104,978
Noncommercial
Residential mortgage	26,685		6,546		33,231		25,427		7,129		32,556
Revolving mortgage	3,624		2,179		5,803		3,600		1,705		5,305
Construction and land development - noncommercial	416		—		416		784		—		784
Consumer and other	1,133		174		1,307		1,091		129		1,220
Total noncommercial TDRs	31,858		8,899		40,757		30,902		8,963		39,865
Total TDRs	$	113,729	$	27,668	$	141,397	$	113,296	$	31,547	$	144,843

The majority of TDRs are included in the special mention, substandard or doubtful grading categories. When a restructured loan subsequently defaults, it is evaluated and downgraded if appropriate. The more severely graded the loan, the lower the estimated expected cash flows and the greater the allowance recorded. Further, TDRs over $500,000 and graded substandard or lower are evaluated individually for impairment through a review of collateral values or analysis of cash flows.

The following table shows the accrual status of non-PCI and PCI TDRs.

(Dollars in thousands)	March 31, 2016		December 31, 2015
Accruing TDRs:
PCI	$	29,410	$	29,231
Non-PCI	84,319		84,065
Total accruing TDRs	113,729		113,296
Nonaccruing TDRs:
PCI	923		1,420
Non-PCI	26,745		30,127
Total nonaccruing TDRs	27,668		31,547
All TDRs:
PCI	30,333		30,651
Non-PCI	111,064		114,192
Total TDRs	$	141,397	$	144,843

25

The following tables provide the types of TDRs made during the three months ended March 31, 2016 and March 31, 2015, as well as a summary of loans that were modified as a TDR during the twelve months ended March 31, 2016 and March 31, 2015 that subsequently defaulted during the three months ended March 31, 2016 and March 31, 2015. BancShares defines payment default as movement of the TDR to nonaccrual status, which is generally 90 days past due for TDRs, foreclosure or charge-off, whichever occurs first.

	Three months ended March 31, 2016						Three months ended March 31, 2015
	All restructurings			Restructurings with payment default			All restructurings			Restructurings with payment default
(Dollars in thousands)	Number of Loans	Recorded investment at period end		Number of Loans	Recorded investment at period end		Number of Loans	Recorded investment at period end		Number of Loans	Recorded investment at period end
Non-PCI loans and leases
Interest only period provided
Commercial mortgage	1	$	252	1	$	252	—	$	—	—	$	—
Commercial and industrial	—	—		—	—		1	3,796		1	3,796
Total interest only	1	252		1	252		1	3,796		1	3,796
Loan term extension
Construction and land development - commercial	1	404		—	—		1	220		1	220
Commercial mortgage	1	—		—	—		3	535		—	—
Revolving mortgage	—	—		—	—		1	10		—	—
Residential mortgage	1	34		—	—		—	—		—	—
Consumer	—	—		—	—		1	5		—	—
Total loan term extension	3	438		—	—		6	770		1	220
Below market interest rate
Construction and land development - commercial	1	18		1	18		2	47		—	—
Commercial mortgage	10	1,422		4	511		9	3,541		2	733
Commercial and industrial	3	12		—	—		3	172		—	—
Residential mortgage	46	3,288		13	841		23	708		2	45
Revolving mortgage	—	—		—	—		2	18		—	—
Construction and land development - noncommercial	—	—		—	—		2	396		—	—
Consumer	2	73		—	—		3	34		—	—
Other	—	—		—	—		1	1,950		—	—
Total below market interest rate	62	4,813		18	1,370		45	6,866		4	778
Discharged from bankruptcy
Construction and land development - commercial	—	—		1	16		—	—		—	—
Residential mortgage	1	144		—	—		2	68		—	—
Revolving mortgage	8	347		8	277		5	218		2	147
Consumer	7	68		4	59		—	—		—	—
Total discharged from bankruptcy	16	559		13	352		7	286		2	147
Total non-PCI restructurings	82	$	6,062	32	$	1,974	59	$	11,718	8	$	4,941

26

	Three months ended March 31, 2016						Three months ended March 31, 2015
	All restructurings			Restructurings with payment default			All restructurings			Restructurings with payment default
(Dollars in thousands)	Number of loans	Recorded investment at period end		Number of loans	Recorded investment at period end		Number of loans	Recorded investment at period end		Number of loans	Recorded investment at period end
PCI loans
Below market interest rate
Construction and land development - commercial	1	$	14	—	$	—	—	$	—	—	$	—
Commercial mortgage	3	2,016		—	—		—	—		—	—
Commercial and industrial	—	—		—	—		—	—		1	65
Residential mortgage	—	—		—	—		7	470		—	—
Total below market interest rate	4	2,030		—	—		7	470		1	65
Total PCI restructurings	4	$	2,030	—	$	—	7	$	470	1	$	65

For the three months ended March 31, 2016 and March 31, 2015, the recorded investment in TDRs subsequent to modification was not materially impacted by the modification since forgiveness of principal is not a restructuring option frequently used by BancShares.

NOTE F - OTHER REAL ESTATE OWNED (OREO)

The following table explains changes in other real estate owned during the three months ended March 31, 2016 and March 31, 2015.

(Dollars in thousands)	Covered			Noncovered			Total
Balance at December 31, 2014	$	22,982		$	70,454		$	93,436
Additions	4,244			17,084			21,328
Sales	(8,970		)	(13,573		)	(22,543		)
Writedowns	(954		)	(1,275		)	(2,229		)
Balance at March 31, 2015	$	17,302		$	72,690		$	89,992
Balance at December 31, 2015	$	6,817		$	58,742		$	65,559
Additions	3,936			6,044			9,980
Additions acquired in the North Milwaukee State Bank acquisition	—			330			330
Sales	(523		)	(7,547		)	(8,070		)
Writedowns	(496		)	(2,235		)	(2,731		)
Balance at March 31, 2016	$	9,734		$	55,334		$	65,068

At March 31, 2016 and December 31, 2015, BancShares had $14.9 million and $16.1 million, respectively, of foreclosed residential real estate property in OREO. The recorded investment in consumer mortgage loans collateralized by residential real estate property in the process of foreclosure was $17.6 million and $15.6 million at March 31, 2016 and December 31, 2015, respectively.

27

NOTE G - FDIC LOSS SHARE RECEIVABLE

The following table provides changes in the receivable from the FDIC for the three months ended March 31, 2016 and March 31, 2015.

	Three months ended March 31
(Dollars in thousands)	2016			2015
Beginning balance	$	4,054		$	28,701
Amortization	(2,375		)	(5,031		)
Net cash payments to FDIC	9,871			5,762
Post-acquisition adjustments	(4,076		)	(8,092		)
Ending balance	$	7,474		$	21,340

The receivable from the FDIC for loss share agreements is measured separately from the related covered assets and is recorded at fair value at the acquisition date using projected cash flows based on the expected reimbursements for losses and the applicable loss share percentages. See Note Lfor information related to FCB's recorded payable to the FDIC for loss share agreements.

Amortization reflects changes in the FDIC loss share receivable due to improvements in expected cash flows that are being recognized over the remaining term of the loss share agreement. Cash payments to FDIC represent the net impact of loss share loan recoveries, charge-offs and related expenses as calculated and reported in FDIC loss share certificates. Post-acquisition adjustments represent the net change in loss estimates related to acquired loans and covered OREO as a result of changes in expected cash flows and the ALLL related to those covered loans. At the beginning of the second, third and fourth quarters of 2016, the loss share protection will expire for non-single family residential loans acquired from UWB, ABT and CCB, respectively. At December 31, 2016, loss share protection will have expired for all non-single family residential loans and loss share protection will remain only for single family residential loans acquired with loss share agreements.

NOTE H - MORTGAGE SERVICING RIGHTS

Our portfolio of residential mortgage loans serviced for third parties was $2.20 billion and $2.15 billion as of March 31, 2016 and December 31, 2015, respectively.  These loans were originated by BancShares and sold to third parties on a non-recourse basis with servicing rights retained.  These retained servicing rights are recorded as a servicing asset on the Consolidated Balance Sheets and are initially recorded at fair value.

The activity of the servicing asset for the three months ended March 31, 2016 and 2015 is presented in the following table:

	Three months ended March 31
(Dollars in thousands)	2016			2015
Beginning balance	$	19,351		$	16,688
Servicing rights originated	977			662
Amortization	(1,268		)	(852		)
Valuation allowance provision	(1,874		)	(62		)
Ending balance	$	17,186		$	16,436

The following table presents the activity in the servicing asset valuation allowance for the three months ended March 31, 2016 and 2015:

	Three months ended March 31
(Dollars in thousands)	2016		2015
Beginning balance	$	95	$	850
Valuation allowance provision	1,874		62
Ending balance	$	1,969	$	912

As of March 31, 2016, the carrying value of BancShares' mortgage servicing rights was $17.2 million. Contractually specified mortgage servicing fees, late fees, and ancillary fees earned for the three months ended March 31, 2016 and 2015 were $1.4 million and $1.3 million, respectively, and are included in mortgage income in the Consolidated Statements of Income.

The amortization expense related to mortgage servicing rights, included as a reduction of mortgage income in the Consolidated Statements of Income, was $1.3 million and $852 thousand for the three months ended March 31, 2016 and 2015, respectively.

28

Mortgage income included an impairment of $1.9 million and $62 thousand for the three months ended March 31, 2016 and 2015, respectively.

Valuation of mortgage servicing rights is performed using a pooling methodology. Similar loans are pooled together and evaluated on a discounted earnings basis to determine the present value of future earnings. Key economic assumptions used to value mortgage servicing rights as of March 31, 2016 and December 31, 2015 were as follows:

	March 31, 2016			December 31, 2015
Discount rate - conventional fixed loans	8.77		%	9.31		%
Discount rate - all loans excluding conventional fixed loans	9.77		%	10.31		%
Weighted average constant prepayment rate	13.32		%	11.01		%
Weighted average cost to service a loan	$	62.75		$	56.61

NOTE I - REPURCHASE AGREEMENTS

BancShares utilizes securities sold under agreements to repurchase to facilitate the needs of customers and secure long-term funding needs. Repurchase agreements are transactions whereby BancShares offers to sell to a counterparty an undivided interest in an eligible security at an agreed upon purchase price, and which obligates BancShares to repurchase the security on an agreed upon date at an agreed upon repurchase price plus interest at an agreed upon rate. Securities sold under agreements to repurchase are recorded at the amount of cash received in connection with the transaction and are generally reflected as short-term borrowings on the Consolidated Balance Sheets.

BancShares monitors collateral levels on a continuous basis and maintains records of each transaction specifically describing the applicable security and the counterparty’s fractional interest in that security, and segregate the security from general assets in accordance with regulations governing custodial holdings of securities. The primary risk with repurchase agreements is market risk associated with the investments securing the transactions, as additional collateral may be required based on fair value changes of the underlying investments. Securities pledged as collateral under repurchase agreements are maintained with safekeeping agents. The carrying value of available for sale investment securities pledged as collateral under repurchase agreements was $787.0 million and $722.0 million at March 31, 2016 and December 31, 2015, respectively.

The remaining contractual maturity of the securities sold under agreements to repurchase by class of collateral pledged included in the Consolidated Balance Sheets as of March 31, 2016 and December 31, 2015 is presented in the following tables.

	March 31, 2016
	Remaining Contractual Maturity of the Agreements
(Dollars in thousands)	Overnight and continuous		Up to 30 Days		30-90 Days		Greater than 90 Days		Total
Repurchase agreements
U.S. Treasury	$	686,685	$	—	$	—	$	25,720	$	712,405
Government agency	—		—		—		4,280		4,280
Total borrowings	$	686,685	$	—	$	—	$	30,000	$	716,685
Gross amount of recognized liabilities for repurchase agreements									$	716,685
	December 31, 2015
	Remaining Contractual Maturity of the Agreements
	Overnight and continuous		Up to 30 Days		30-90 Days		Greater than 90 Days		Total
Repurchase agreements
U.S. Treasury	$	592,182	$	—	$	—	$	25,724	$	617,906
Government agency	—		—		—		4,276		4,276
Total borrowings	$	592,182	$	—	$	—	$	30,000	$	622,182
Gross amount of recognized liabilities for repurchase agreements									$	622,182

29

NOTE J - ESTIMATED FAIR VALUES

Fair value estimates are intended to represent the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants as of the measurement date. Where there is no active market for a financial instrument, BancShares has made estimates using discounted cash flows or other valuation techniques. Inputs to these valuation methods are subjective in nature, involve uncertainties and require significant judgment and therefore cannot be determined with precision. Accordingly, the derived fair value estimates presented below are not necessarily indicative of the amounts BancShares could realize in a current market exchange.

ASC 820, Fair Value Measurements and Disclosures, indicates that assets and liabilities are recorded at fair value according to a fair value hierarchy comprised of three levels. The levels are based on the markets in which the assets and liabilities are traded and the reliability of the assumptions used to determine fair value. The level within the fair value hierarchy for an asset or liability is based on the highest level of input that is significant to the fair value measurement (with level 1 considered highest and level 3 considered lowest). A brief description of each level follows:

• Level 1 values are based on quoted prices for identical instruments in active markets.

• Level 2 values are based on quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active and model-based valuation techniques for which all significant assumptions are observable in the market.

• Level 3 values are generated from model-based techniques that use at least one significant assumption not observable in the market. These unobservable assumptions reflect estimates that market participants would use in pricing the asset or liability. Valuation techniques include the use of discounted cash flow models and similar techniques.

Valuation adjustments, such as those pertaining to counterparty and BancShares' own credit quality and liquidity, may be necessary to ensure that assets and liabilities are recorded at fair value. Credit valuation adjustments are made when market pricing does not accurately reflect the counterparty's credit quality. As determined by BancShares management, liquidity valuation adjustments may be made to the fair value of certain assets to reflect the uncertainty in the pricing and trading of the instruments when we are unable to observe recent market transactions for identical or similar instruments.

BancShares management reviews any changes to its valuation methodologies to ensure they are appropriate and justified, and refines valuation methodologies as more market-based data becomes available. Transfers between levels of the fair value hierarchy are recognized at the end of the reporting period.

The methodologies used to estimate the fair value of financial assets and financial liabilities are discussed below:

Investment securities available for sale. U.S.Treasury, government agency, mortgage-backed securities, municipal securities and trust preferred securities are generally measured at fair value using a third party pricing service or recent comparable market transactions in similar or identical securities and are classified as level 2 instruments. Equity securities are measured at fair value using observable closing prices and the valuation also considers the amount of market activity by examining the trade volume of each security. Equity securities are classified as Level 1 if they are traded on a heavily active market and as Level 2 if the observable closing price is from a less than active market.

Loans held for sale. Certain residential real estate loans are originated to be sold to investors, which are carried at fair value as BancShares elected the fair value option on loans held for sale. The fair value is based on quoted market prices for similar types of loans. Accordingly, the inputs used to calculate fair value of residential real estate loans held for sale are classified as level 2 inputs.

Net loans and leases (PCI and Non-PCI). Fair value is estimated based on discounted future cash flows using the current interest rates at which loans with similar terms would be made to borrowers of similar credit quality. An additional valuation adjustment is made for liquidity. The inputs used in the fair value measurements for loans and leases are considered level 3 inputs.

FHLB stock. The carrying amount of FHLB stock is a reasonable estimate of fair value as these securities are not readily marketable and are evaluated for impairment based on the ultimate recoverability of the par value. BancShares considers positive and negative evidence, including the profitability and asset quality of the issuer, dividend payment history and recent redemption experience, when determining the ultimate recoverability of the par value. BancShares believes its investment in FHLB stock is ultimately recoverable at par. The inputs used in the fair value measurement for the FHLB stock are considered level 2 inputs.

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Mortgage servicing rights. Mortgage servicing rights are carried at the lower of amortized cost or market and are, therefore, carried at fair value only when fair value is less than the asset cost. The fair value of mortgage servicing rights is performed using a pooling methodology. Similar loans are pooled together and a model that relies on discount rates, estimates of prepayment rates and the weighted average cost to service the loans is used to determine the fair value. The inputs used in the fair value measurement for mortgage servicing rights are considered level 3 inputs.

Deposits. For non-time deposits, carrying value is a reasonable estimate of fair value. The fair value of time deposits is estimated by discounting future cash flows using the interest rates currently offered for deposits of similar remaining maturities. The inputs used in the fair value measurement for deposits are considered level 2 inputs.    

Long-term obligations. For fixed rate trust preferred securities, the fair values are determined based on recent trades of the actual security if available. For other long-term obligations, fair values are estimated by discounting future cash flows using current interest rates for similar financial instruments. The inputs used in the fair value measurement for long-term obligations are considered level 2 inputs.

Payable to the FDIC for loss share agreements. The fair value of the payable to the FDIC for loss share agreements is determined by the projected cash flows based on expected payments to the FDIC in accordance with the loss share agreements. Cash flows are discounted using current discount rates to reflect the timing of the estimated amounts due to the FDIC. The inputs used in the fair value measurement for the payable to the FDIC are considered level 3 inputs.

Interest rate swap. Under the terms of the existing cash flow hedge, BancShares pays a fixed payment to the counterparty in exchange for receipt of a variable payment that is determined based on the three-month LIBOR rate. The fair value of the cash flow hedge is, therefore, based on projected LIBOR rates for the duration of the hedge, values that, while observable in the market, are subject to adjustment due to pricing considerations for the specific instrument. The inputs used in the fair value measurement of the interest rate swap are considered level 2 inputs.

Off-balance-sheet commitments and contingencies. Carrying amounts are reasonable estimates of the fair values for such financial instruments. Carrying amounts include unamortized fee income and, in some cases, reserves for any credit losses from those financial instruments. These amounts are not material to BancShares' financial position.

For all other financial assets and financial liabilities, the carrying value is a reasonable estimate of the fair value as of March 31, 2016 and December 31, 2015. The carrying value and fair value for these assets and liabilities are equivalent because they are relatively short term in nature and there is no interest rate or credit risk that would cause the fair value to differ from the carrying value. Cash and due from banks is classified on the fair value hierarchy as level 1. Overnight investments, income earned not collected, short-term borrowings and accrued interest payable are considered level 2. Lastly, the receivable from the FDIC for loss share agreements is designated as level 3.

(Dollars in thousands)	March 31, 2016				December 31, 2015
	Carrying value		Fair value		Carrying value		Fair value
Cash and due from banks	$	457,758	$	457,758	$	534,086	$	534,086
Overnight investments	2,871,105		2,871,105		2,063,132		2,063,132
Investment securities available for sale	6,687,289		6,687,289		6,861,293		6,861,293
Investment securities held to maturity	194		203		255		265
Loans held for sale	66,988		66,988		59,766		59,766
Net loans and leases	20,210,906		19,703,240		20,033,774		19,353,325
Receivable from the FDIC for loss share agreements (1)	7,474		7,474		4,054		4,054
Income earned not collected	73,518		73,518		70,036		70,036
Federal Home Loan Bank stock	40,407		40,407		37,511		37,511
Mortgage servicing rights	17,186		17,234		19,351		19,495
Deposits	27,365,245		26,904,946		26,930,755		26,164,472
Short-term borrowings	689,236		689,236		594,733		594,733
Long-term obligations	779,087		808,765		704,155		718,102
Payable to the FDIC for loss share agreements	128,243		136,646		126,453		131,894
Accrued interest payable	6,037		6,037		5,713		5,713
Interest rate swap	729		729		1,429		1,429

⁽¹⁾ At March 31, 2016 and December 31, 2015, the carrying value of the FDIC receivable approximates the fair value due to the short term nature of the majority of loss share agreements.

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Among BancShares' assets and liabilities, investment securities available for sale, loans held for sale and interest rates swaps accounted for as cash flow hedges are reported at their fair values on a recurring basis. For assets and liabilities carried at fair value on a recurring basis, the following table provides fair value information as of March 31, 2016 and December 31, 2015.

	March 31, 2016
			Fair value measurements using:
(Dollars in thousands)	Fair value		Level 1 inputs		Level 2 inputs		Level 3 inputs
Assets measured at fair value
Investment securities available for sale
U.S. Treasury	$	1,541,215	$	—	$	1,541,215	$	—
Government agency	356,157		—		356,157		—
Mortgage-backed securities	4,727,282		—		4,727,282		—
Equity securities	52,095		7,400		44,695		—
Other	10,540		—		10,540		—
Total investment securities available for sale	$	6,687,289	$	7,400	$	6,679,889	$	—
Loans held for sale	$	66,988	$	—	$	66,988	$	—
Liabilities measured at fair value
Interest rate swaps accounted for as cash flow hedges	$	729	$	—	$	729	$	—
	December 31, 2015
			Fair value measurements using:
	Fair value		Level 1 inputs		Level 2 inputs		Level 3 inputs
Assets measured at fair value
Investment securities available for sale
U.S. Treasury	$	1,674,882	$	—	$	1,674,882	$	—
Government agency	498,660		—		498,660		—
Mortgage-backed securities	4,668,198		—		4,668,198		—
Equity securities	8,893		1,668		7,225		—
Other	10,660		—		10,660		—
Total investment securities available for sale	$	6,861,293	$	1,668	$	6,859,625	$	—
Loans held for sale	$	59,766	$	—	$	59,766	$	—
Liabilities measured at fair value
Interest rate swaps accounted for as cash flow hedges	$	1,429	$	—	$	1,429	$	—

There were no transfers between levels during the three months ended March 31, 2016.

Fair Value Option

BancShares has elected the fair value option for residential real estate loans held for sale. This election reduces certain timing differences in the Consolidated Statement of Income and better aligns with the management of the portfolio from a business perspective.

The following table summarizes the difference between the aggregate fair value and the aggregate unpaid principal balance for residential real estate loans held for sale measured at fair value as of March 31, 2016 and December 31, 2015.

	March 31, 2016
(Dollars in thousands)	Fair Value		Aggregate Unpaid Principal Balance		Difference
Loans held for sale	$	66,988	$	65,350	$	1,638
	December 31, 2015
	Fair Value		Aggregate Unpaid Principal Balance		Difference
Loans held for sale	$	59,766	$	58,890	$	876

No loans held for sale were 90 or more days past due or on nonaccrual status as of March 31, 2016 or December 31, 2015.

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The changes in fair value for residential real estate loans held for sale for which we elected the fair value option are included in the table below for the three months ended March 31, 2016 and 2015.

	Three months ended March 31
(Dollars in thousands)	2016		2015
Gains (losses) from fair value changes on loans held for sale	$	763	$	430

The changes in fair value in the table above are recorded as a component of mortgage income on the Consolidated Statements of Income.

Certain other assets are adjusted to their fair value on a nonrecurring basis, including impaired loans, OREO, goodwill, which are periodically tested for impairment, and mortgage servicing rights, which are carried at the lower of amortized cost or market. Non-impaired loans held for investment, deposits, short-term borrowings and long-term obligations are not reported at fair value.

Impaired loans are deemed to be at fair value if an associated allowance or current period charge-off has been recorded. The value of impaired loans is determined by either collateral valuations or discounted present value of the expected cash flow calculations. Collateral values are determined using appraisals or other third-party value estimates of the subject property with discounts generally between 10 and 14 percent applied for estimated holding and selling costs and other external factors that may impact the marketability of the property. Expected cash flows are determined using expected payment information at the individual loan level, discounted using the effective interest rate. The effective interest rate generally ranges between 2 and 16 percent.

OREO is measured and reported at fair value using collateral valuations. Collateral values are determined using appraisals or other third-party value estimates of the subject property with discounts generally between 10 and 14 percent applied for estimated holding and selling costs and other external factors that may impact the marketability of the property. Changes to the value of the assets between scheduled valuation dates are monitored through continued communication with brokers and monthly reviews by the asset manager assigned to each asset. If there are any significant changes in the market or the subject property, valuations are adjusted or new appraisals ordered to ensure the reported values reflect the most current information. OREO that has been acquired or written down in the current year is deemed to be at fair value and included in the table below.

Mortgage servicing rights are carried at the lower of cost or market and are, therefore, carried at fair value only when fair value is less than the amortized asset cost. The fair value of mortgage servicing rights is performed using a pooling methodology. Similar loans are pooled together and a discounted cash flow model, which takes into consideration discount rates, prepayment rates, and the weighted average cost to service the loans, is used to determine the fair value.

For financial assets and liabilities carried at fair value on a nonrecurring basis, the following table provides fair value information as of March 31, 2016 and December 31, 2015.

	March 31, 2016
			Fair value measurements using:
(Dollars in thousands)	Fair value		Level 1 inputs		Level 2 inputs		Level 3 inputs
Impaired loans	$	52,337	$	—	$	—	$	52,337
Other real estate not covered under loss share agreements remeasured during current year	17,278		—		—		17,278
Other real estate covered under loss share agreements remeasured during current year	6,247		—		—		6,247
Mortgage servicing rights	16,800		—		—		16,800
	December 31, 2015
			Fair value measurements using:
	Fair value		Level 1 inputs		Level 2 inputs		Level 3 inputs
Impaired loans	$	64,197	$	—	$	—	$	64,197
Other real estate not covered under loss share agreements remeasured during current year	44,571		—		—		44,571
Other real estate covered under loss share agreements remeasured during current year	4,403		—		—		4,403
Mortgage servicing rights	17,997		—		—		17,997

No financial liabilities were carried at fair value on a nonrecurring basis as of March 31, 2016 and December 31, 2015.

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NOTE K - EMPLOYEE BENEFIT PLANS

BancShares sponsors noncontributory defined benefit pension plans for its qualifying employees (BancShares Plan) and legacy Bancorporation employees (Bancorporation Plan). Net periodic benefit cost is a component of employee benefits expense.

BancShares Plan

For the three months ended March 31, 2016 and 2015, the components of net periodic benefit cost are as follows:

	Three months ended March 31
(Dollars in thousands)	2016			2015
Service cost	$	3,220		$	3,600
Interest cost	7,180			6,748
Expected return on assets	(9,159		)	(8,295		)
Amortization of prior service cost	52			53
Amortization of net actuarial loss	1,600			2,833
Net periodic benefit cost	$	2,893		$	4,939

Bancorporation Plan

For the three months ended March 31, 2016 and 2015, the components of net periodic benefit cost are as follows:

	Three months ended March 31
(Dollars in thousands)	2016			2015
Service cost	$	650		$	933
Interest cost	1,675			1,628
Expected return on assets	(2,779		)	(2,869		)
Net periodic benefit cost	$	(454	)	$	(308	)

No contributions were made during the three months ended March 31, 2016 to the BancShares or Bancorporation pension plans. BancShares does not expect to make any contributions to either of the defined benefit pension plans during 2016.

NOTE L - COMMITMENTS AND CONTINGENCIES

To meet the financing needs of its customers, BancShares and its subsidiaries have financial instruments with off-balance sheet risk. These financial instruments include commitments to extend credit, standby letters of credit and recourse obligations on mortgage loans sold. These instruments involve elements of credit, interest rate or liquidity risk.

Commitments to extend credit are legally binding agreements to lend to customers. Commitments generally have fixed expiration dates or other termination clauses and may require payment of fees. Since many of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future liquidity requirements. Established credit standards control the credit risk exposure associated with these commitments. In some cases, BancShares requires that collateral be pledged to secure the commitment, including cash deposits, securities and other assets. At March 31, 2016, BancShares had unused commitments that were $8.08 billion, compared to $7.95 billion at December 31, 2015. Total unfunded commitments relating to investments in affordable housing projects was $58.1 million and $41.8 million at March 31, 2016 and December 31, 2015, respectively, and are included in other liabilities on BancShares' Consolidated Balance Sheets. Affordable housing project investments were $110.0 million and $85.6 million at March 31, 2016 and December 31, 2015, respectively, and are included in other assets on the Consolidated Balance Sheets.

Standby letters of credit are commitments guaranteeing performance of a customer to a third party. Those commitments are primarily issued to support public and private borrowing arrangements. To mitigate its risk, BancShares’ follows its credit policies in the issuance of standby letters of credit. At March 31, 2016 and December 31, 2015, BancShares had standby letters of credit amounting to $80.3 million and $77.9 million, respectively. The credit risk related to the issuance of these letters of credit is essentially the same as that involved in extending loans to clients and, therefore, these letters of credit are collateralized when necessary.

Pursuant to standard representations and warranties relating to residential mortgage loan sales, contingent obligations exist for various events that may occur following the loan sale. If underwriting or documentation deficiencies are discovered at any point in the life of the loan or if the loan becomes nonperforming within 120 days of its sale, the investor may require BancShares to repurchase the loan or to repay a portion of the sale proceeds. Other liabilities included reserves of $3.0 million as of March 31, 2016 and December 31, 2015 for estimated losses arising from these standard representation and warranty provisions.

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BancShares has recorded a receivable from the FDIC totaling $7.5 million and $4.1 million as of March 31, 2016 and December 31, 2015, respectively, for the expected reimbursement of losses on assets covered under the various loss share agreements. These loss share agreements impose certain obligations on us that, in the event of noncompliance, could result in the delay or disallowance of some or all of our rights under those agreements. Requests for reimbursement are subject to FDIC review and may be delayed or disallowed for noncompliance. The loss share agreements are subject to interpretation by both the FDIC and BancShares, and disagreements may arise regarding coverage of losses, expenses and contingencies.

The loss share agreements for five FDIC-assisted transactions include provisions related to payments that may be owed to the FDIC at the termination of the agreements (clawback liability).The clawback liability represents a payment by BancShares to the FDIC if actual cumulative losses on acquired covered assets are lower than the cumulative losses originally estimated by the FDIC at the time of acquisition. The clawback liability is estimated by discounting estimated future payments and is recorded in the Consolidated Balance Sheets as a payable to the FDIC under the relevant loss share agreements. As of March 31, 2016 and December 31, 2015, the estimated clawback liability was $128.2 million and $126.5 million, respectively.

BancShares and various subsidiaries have been named as defendants in legal actions arising from their normal business activities in which damages in various amounts are claimed. BancShares is also exposed to litigation risk relating to the prior business activities of banks from which assets were acquired and liabilities assumed in the various FDIC-assisted transactions. Although the amount of any ultimate liability with respect to such matters cannot be determined, in the opinion of management, any such liability will not have a material effect on BancShares’ consolidated financial statements.

NOTE M - DERIVATIVES

At March 31, 2016, BancShares had an interest rate swap entered into during 2011 that qualifies as a cash flow hedge under GAAP. For all periods presented, the fair value of the outstanding derivative is included in other liabilities in the consolidated balance sheets, and the net change in fair value is included in the consolidated statements of cash flows under the caption net change in other liabilities.

The following table provides the notional amount of the interest rate swap and the fair value of the liability as of March 31, 2016 and December 31, 2015.

	March 31, 2016				December 31, 2015
(Dollars in thousands)	Notional  amount		Estimated fair value of liability		Notional  amount		Estimated fair value of liability
2011 interest rate swap hedging variable rate exposure on trust preferred securities 2011-2016	$	93,500	$	729	$	93,500	$	1,429

The interest rate swap is used for interest rate risk management purposes and converts variable-rate exposure on outstanding debt to a fixed rate. The interest rate swap has a notional amount of $93.5 million, representing the amount of variable rate trust preferred capital securities issued during 2006 and still outstanding at the swap inception date. The interest rate swap hedges interest payments through June 2016 and requires fixed-rate payments by BancShares at 5.50 percent in exchange for variable-rate payments of 175 basis points above the three-month LIBOR, which is equal to the interest paid to the holders of the trust preferred capital securities. Settlement of the swap occurs quarterly. The interest rate swap obligation did not meet the threshold to require pledged collateral to secure the obligation at March 31, 2016. At December 31, 2015, collateral with a fair value of $2.0 million was pledged to secure the existing obligation under the interest rate swap.

For cash flow hedges, the effective portion of the gain or loss due to changes in the fair value of the derivative hedging instrument is included in other comprehensive income, while the ineffective portion, representing the excess of the cumulative change in the fair value of the derivative over the cumulative change in expected future discounted cash flows on the hedged transaction, is recorded in the consolidated statement of income. BancShares’ interest rate swap has been fully effective since inception. Therefore, changes in the fair value of the interest rate swap have had no impact on net income. For the three months ended March 31, 2016 and 2015, BancShares recognized interest expense of $743 thousand and $826 thousand, respectively, resulting from incremental interest paid to the interest rate swap counterparty, none of which related to ineffectiveness.

BancShares monitors the credit risk of the interest rate swap counterparty.

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NOTE N - ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)

Accumulated other comprehensive income (loss) included the following as of March 31, 2016 and December 31, 2015:

	March 31, 2016									December 31, 2015
(Dollars in thousands)	Accumulated other comprehensive income (loss)			Deferred tax expense (benefit)			Accumulated other comprehensive income (loss), net of tax			Accumulated other comprehensive loss			Deferred tax benefit			Accumulated other comprehensive loss, net of tax
Unrealized gains (losses) on investment securities available for sale, net	$	38,900		$	14,866		$	24,034		$	(24,504	)	$	(9,379	)	$	(15,125	)
Unrealized loss on cash flow hedge	(729		)	(274		)	(455		)	(1,429		)	(537		)	(892		)
Funded status of defined benefit plans	(76,767		)	(29,364		)	(47,403		)	(78,419		)	(29,996		)	(48,423		)
Total	$	(38,596	)	$	(14,772	)	$	(23,824	)	$	(104,352	)	$	(39,912	)	$	(64,440	)

The following table highlights changes in accumulated other comprehensive (loss) income by component for the three months ended March 31, 2016 and March 31, 2015:

	Three months ended March 31, 2016
(Dollars in thousands)	Unrealized gains (losses) on available for sale securities1			Gains (losses) on cash flow hedges1			Defined benefit pension items1			Total
Beginning balance	$	(15,125	)	$	(892	)	$	(48,423	)	$	(64,440	)
Other comprehensive income before reclassifications	42,017			437			—			42,454
Amounts reclassified from accumulated other comprehensive (loss) income	(2,858		)	—			1,020			(1,838		)
Net current period other comprehensive income	39,159			437			1,020			40,616
Ending balance	$	24,034		$	(455	)	$	(47,403	)	$	(23,824	)
	Three months ended March 31, 2015
	Unrealized gains (losses) on available for sale securities1			Gains (losses) on cash flow hedges1			Defined benefit pension items1			Total
Beginning balance	$	5,098		$	(2,664	)	$	(55,415	)	$	(52,981	)
Other comprehensive income before reclassifications	18,602			354			—			18,956
Amounts reclassified from accumulated other comprehensive (loss) income	(3,149		)	—			1,763			(1,386		)
Net current period other comprehensive income	15,453			354			1,763			17,570
Ending balance	$	20,551		$	(2,310	)	$	(53,652	)	$	(35,411	)

¹ All amounts are net of tax. Amounts in parentheses indicate debits.

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The following table presents the amounts reclassified from accumulated other comprehensive (loss) income and the line item affected in the statement where net income is presented for the three months ended March 31, 2016 and March 31, 2015:

(Dollars in thousands)	Three months ended March 31, 2016
Details about accumulated other comprehensive income (loss)	Amounts reclassified from accumulated other comprehensive income (loss)1			Affected line item in the statement where net income is presented
Unrealized gains and losses on available for sale securities	$	4,628		Securities gains
	(1,770		)	Income taxes
	$	2,858		Net income
Amortization of defined benefit pension items
Prior service costs	$	(52	)	Employee benefits
Actuarial losses	(1,600		)	Employee benefits
	(1,652		)	Employee benefits
	632			Income taxes
	$	(1,020	)	Net income
Total reclassifications for the period	$	1,838
	Three months ended March 31, 2015
Details about accumulated other comprehensive income (loss)	Amounts reclassified from accumulated other comprehensive income (loss)1			Affected line item in the statement where net income is presented
Unrealized gains and losses on available for sale securities	$	5,126		Securities gains
	(1,977		)	Income taxes
	$	3,149		Net income
Amortization of defined benefit pension items
Prior service costs	$	(53	)	Employee benefits
Actuarial losses	(2,833		)	Employee benefits
	(2,886		)	Employee benefits
	1,123			Income taxes
	$	(1,763	)	Net income
Total reclassifications for the period	$	1,386

¹ Amounts in parentheses indicate debits to profit/loss.

Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

Management’s discussion and analysis (MD&A) of earnings and related financial data are presented to assist in understanding the financial condition and results of operations of First Citizens BancShares, Inc. and Subsidiaries (BancShares). This discussion and analysis should be read in conjunction with the unaudited consolidated financial statements and related notes presented within this report along with our financial statements and related MD&A of financial condition and results of operations included in our 2015 Annual Report on Form 10-K. Intercompany accounts and transactions have been eliminated. Although certain amounts for prior years have been reclassified to conform to statement presentations for 2016, the reclassifications had no material effect on shareholders’ equity or net income as previously reported. Unless otherwise noted, the terms "we," "us" and "BancShares" refer to the consolidated financial position and consolidated results of operations for BancShares.

EXECUTIVE OVERVIEW

BancShares’ earnings and cash flows are primarily derived from commercial and retail banking activities. We gather deposits from retail and commercial customers and also secure funding through various non-deposit sources. We invest the liquidity generated from these funding sources in interest-earning assets, including loans and leases, investment securities and overnight investments. We also invest in bank premises, hardware, software, furniture and equipment used to conduct our commercial and retail banking business. We provide treasury services products, cardholder and merchant services, wealth management services and various other products and services typically offered by commercial banks.

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BancShares conducts its banking operations through its wholly-owned subsidiary First-Citizens Bank & Trust Company (FCB), a state-chartered bank organized under the laws of the state of North Carolina.

In March 2016, FCB entered into an agreement with the Federal Deposit Insurance Corporation (FDIC) to purchase certain assets and assume certain liabilities of North Milwaukee State Bank of Milwaukee, Wisconsin (NMSB). As a result of the NMSB transaction, FCB recorded loans with a fair value of $35.4 million and investment securities with a fair value of $9.4 million. The fair value of deposits assumed was $59.2 million. In accordance with the acquisition method of accounting, all assets and liabilities were recorded at their fair value as of the acquisition date. As a result, an acquisition gain of $1.7 million was recorded in the first quarter of 2016. Per the acquisition method of accounting, these fair values are preliminary and subject to refinement for up to one year after the acquisition date as additional information relative to closing date fair values become available.

Interest rates have presented significant challenges to commercial banks’ efforts to generate earnings and shareholder value. Management has embarked on several strategic initiatives to better position the company to counter these challenges. The initiatives focus on core revenue growth through broader products and services, control of noninterest expenses, optimization of our branch network, and further enhancements to our technology. Additionally, we continue to pursue strategic acquisitions and mergers to expand our customer base and increase efficiency and productivity. Refer to our Form 10-K for the year ended December 31, 2015 for further discussion of our strategy.

RECENT ECONOMIC AND INDUSTRY DEVELOPMENTS

Various external factors influence the focus of our business efforts, and the results of our operations can change significantly based on those external factors. First quarter2016 results indicate stable labor conditions despite global economic instability in recent months as the unemployment rate remained unchanged at 5.0 percent. According to the U.S. Department of Labor, the economy added approximately 628,000 new nonfarm payroll jobs during the first quarter of 2016 and labor force participation increased. The U.S. housing market experienced a slowdown of activity as a lack of available inventory of for-sale homes constrained many markets, although the outlook remains positive as a result of solid housing demand fueled by low mortgage interest rates, economic growth and job creation.

The Federal Reserve’s Federal Open Market Committee (FOMC) indicated in the first quarter that economic activity has been expanding at a moderate pace despite global economic and financial developments in recent months. Household spending has been increasing moderately and the housing sector shows further improvement, while business fixed investment and net exports have been soft. The FOMC decided to maintain the target range for the federal funds rate and will continue to assess realized and expected economic conditions relative to its objectives of maximum employment and 2.0 percent inflation in determining the timing and size of future adjustments to the target range. The FOMC anticipates that economic conditions will evolve in a manner that will warrant only gradual increases in the federal funds rate in the future.

The trends in the banking industry are similar to those of the broader economy as shown in the latest national banking results from the fourth quarter of 2015. FDIC-insured institutions reported an 11.9 percent increase in net income compared to the fourth quarter of 2014. Interest-earning assets contributed to an increase in net interest income compared to a year earlier and bank average net interest margin was 3.13 percent in the fourth quarter of 2015, up slightly from 3.12 percent in the fourth quarter of 2014. Banks minimally reduced their allowance for loan losses during the fourth quarter, as quarterly loan loss provisions exceeded quarterly net charge-offs for the first time in six years.

EARNINGS PERFORMANCE SUMMARY

BancShares' consolidated net income for the first quarter of 2016 was $52.1 million, or $4.34 per share, compared to $42.7 million, or $3.56 per share, for the fourth quarter of 2015, and $67.2 million, or $5.59 per share, for the corresponding period of 2015. BancShares’ current quarter results generated an annualized return on average assets of 0.66 percent and an annualized return on average equity of 7.17 percent, compared to respective returns of 0.53 percent and 5.92 percent for the fourth quarter of 2015 and 0.90 percent and 10.00 percent for the first quarter of 2015. Net interest margin for the first quarter of 2016 was 3.18 percent, compared to 3.12 percent for the fourth quarter of 2015 and 3.18 percent for the first quarter of the prior year.

Earnings for the first quarter of 2016 included an acquisition gain of $1.7 million recognized in connection with an FDIC-assisted transaction involving certain assets and liabilities assumed of North Milwaukee State Bank (NMSB) of Milwaukee, Wisconsin, acquired on March 11, 2016. The NMSB acquisition contributed $35.3 million in loans and $46.3 million in deposit balances at March 31, 2016. Earnings for the first quarter of 2015 included a $42.9 million gain on the February 13, 2015 acquisition of Capitol City Bank & Trust (CCBT).

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Key highlights in the first quarter of 2016 include:

• Loans grew by $177.7 million to $20.42 billion during the first quarter of 2016, reflecting originated portfolio growth and the NMSB acquisition.

• Deposits increased $434.5 million, or by 6.4 percent on an annualized basis, from December 31, 2015 primarily due to organic growth in low-cost demand deposit and savings accounts.

• Net charge-offs were $4.3 million, or 0.08 percent of average loans and leases on an annualized basis, compared to $6.3 million, or 0.12 percent, during the fourth quarter of 2015.

• The taxable-equivalent net interest margin increased by 6 basis points to 3.18 percent from the fourth quarter of 2015 due to originated loan growth and improvement in the overnight investment yield, partially offset by continued runoff of the purchased credit impaired (PCI) loan portfolio.

• Noninterest income was $105.3 million and $99.1 million in the first quarter of 2016 and fourth quarter of 2015, respectively. The increase was driven primarily by investment securities gains of $4.6 million, lower adjustments to the FDIC receivable and the $1.7 million gain on the acquisition of NMSB in the current quarter.

• BancShares remained well-capitalized under Basel III capital requirements with a Tier 1 risk-based capital ratio of 12.58 percent, common equity Tier 1 ratio of 12.58 percent, total risk-based capital ratio of 14.09 percent and leverage capital ratio of 9.00 percent at March 31, 2016.

39

Table 1

Selected Quarterly Data

	2016			2015
	First			Fourth			Third			Second			First
(Dollars in thousands, except share data)	Quarter			Quarter			Quarter			Quarter			Quarter
SUMMARY OF OPERATIONS
Interest income	$	243,112		$	241,861		$	249,825		$	246,013		$	231,510
Interest expense	10,392			11,142			10,454			11,363			11,345
Net interest income	232,720			230,719			239,371			234,650			220,165
Provision for loan and lease losses	4,843			7,046			107			7,719			5,792
Net interest income after provision for loan and lease losses	227,877			223,673			239,264			226,931			214,373
Gain on acquisition	1,704			—			—			—			42,930
Noninterest income excluding gain on acquisition	103,578			99,135			109,750			107,450			107,823
Noninterest expense	251,671			255,886			260,172			264,691			258,166
Income before income taxes	81,488			66,922			88,842			69,690			106,960
Income taxes	29,416			24,174			32,884			25,168			39,802
Net income	$	52,072		$	42,748		$	55,958		$	44,522		$	67,158
Net interest income, taxable equivalent	$	234,187		$	232,147		$	240,930		$	236,456		$	221,452
PER SHARE DATA
Net income	$	4.34		$	3.56		$	4.66		$	3.71		$	5.59
Cash dividends	0.30			0.30			0.30			0.30			0.30
Market price at period end (Class A)	251.07			258.17			226.00			263.04			259.69
Book value at period end	246.55			239.14			238.34			232.62			230.53
SELECTED QUARTERLY AVERAGE BALANCES
Total assets	$	31,705,658		$	31,753,223		$	31,268,774		$	30,835,749		$	30,414,322
Investment securities	6,510,248			6,731,183			7,275,290			7,149,691			6,889,752
Loans and leases	20,349,091			20,059,556			19,761,145			19,354,823			18,922,028
Interest-earning assets	29,558,629			29,565,715			29,097,839			28,660,246			28,231,923
Deposits	26,998,026			27,029,650			26,719,713			26,342,821			25,833,068
Long-term obligations	750,446			704,465			548,214			473,434			460,713
Interest-bearing liabilities	19,067,251			18,933,443			18,911,455			18,933,611			19,171,958
Shareholders' equity	$	2,920,611		$	2,867,177		$	2,823,967		$	2,781,648		$	2,724,719
Shares outstanding	12,010,405			12,010,405			12,010,405			12,010,405			12,010,405
SELECTED QUARTER-END BALANCES
Total assets	$	32,195,657		$	31,475,934		$	31,449,824		$	30,896,855		$	30,862,932
Investment securities	6,687,483			6,861,548			6,690,879			7,350,545			7,045,550
Loans and leases:
PCI	945,887			950,516			1,044,064			1,123,239			1,252,545
Non-PCI	19,471,802			19,289,474			18,811,742			18,396,946			17,844,414
Deposits	27,365,245			26,930,755			26,719,375			26,511,896			26,300,830
Long-term obligations	779,087			704,155			705,418			475,568			468,180
Shareholders' equity	$	2,961,194		$	2,872,109		$	2,862,528		$	2,793,890		$	2,768,719
Shares outstanding	12,010,405			12,010,405			12,010,405			12,010,405			12,010,405
SELECTED RATIOS AND OTHER DATA
Rate of return on average assets (annualized)	0.66		%	0.53		%	0.71		%	0.58		%	0.90		%
Rate of return on average shareholders' equity (annualized)	7.17			5.92			7.86			6.42			10.00
Net yield on interest-earning assets (taxable equivalent)	3.18			3.12			3.29			3.31			3.18
Allowance for loan and lease losses to total loans and leases:
PCI	1.45			1.72			1.68			1.38			1.41
Non-PCI	0.99			0.98			1.00			1.05			1.05
Total	1.01			1.02			1.03			1.07			1.08
Nonperforming assets to total loans and leases and other real estate at period end:
Covered	4.74			3.51			3.72			4.70			8.42
Noncovered	0.74			0.79			0.77			0.73			0.77
Total	0.80			0.83			0.82			0.79			0.95
Tier 1 risk-based capital ratio	12.58			12.65			12.77			12.66			12.92
Common equity Tier 1 ratio	12.58			12.51			12.63			12.52			12.77
Total risk-based capital ratio	14.09			14.03			14.18			14.10			14.42
Leverage capital ratio	9.00			8.96			8.97			8.92			8.90
Dividend payout ratio	6.91			8.43			6.44			8.09			5.37
Average loans and leases to average deposits	75.37			74.21			73.96			73.47			73.25

Loans and leases include PCI loans, non-PCI loans, nonaccrual loans and loans held for sale.

40

BUSINESS COMBINATIONS

North Milwaukee State Bank

In March 2016, FCB entered into an agreement with the FDIC to purchase certain assets and assume certain liabilities of NMSB. The acquisition provided FCB with value enhancement. This is an FDIC-assisted transaction; however, it has no loss share agreement.

The NMSB transaction was accounted for under the acquisition method of accounting and, accordingly, assets acquired and liabilities assumed were recorded at their estimated fair values on the acquisition date. Fair values are preliminary and subject to refinement for up to one year after the closing date of the acquisition as additional information regarding closing date fair values becomes available.

The following table provides the identifiable assets acquired and liabilities assumed at their estimated fair values as of the acquisition date.

Table 2

North Milwaukee State Bank

(Dollars in thousands)	As recorded by FCB
Assets
Cash and cash equivalents	$	4,545
Overnight investments	2,274
Investment securities	9,425
Loans	35,416
Other real estate owned	330
Intangible assets	240
Other assets	216
Total assets acquired	52,446
Liabilities
Deposits	59,206
Short-term borrowings	1,662
Other liabilities	74
Total liabilities assumed	60,942
Fair value of net liabilities assumed	(8,496		)
Cash received from FDIC	10,200
Gain on acquisition of NMSB	$	1,704

Merger-related expenses of $38 thousand were recorded in the Consolidated Statements of Income for the first quarter of 2016. Loan-related interest income generated from NMSB was approximately $123 thousand since the acquisition date.

All loans resulting from the NMSB transaction were recognized upon acquisition date with a discount attributable, at least in part, to credit quality, and are therefore accounted for as PCI loans.

FDIC-Assisted Transactions

BancShares completed seven FDIC-assisted transactions during the period beginning in 2009 through 2015, and it acquired NMSB in its eighth such transaction during the first quarter of 2016. These transactions provided us significant growth opportunities, have continued to provide significant contributions to our results of operations and have allowed us to increase our presence in existing markets and expand our banking presence to adjacent markets. Prior to its merger into BancShares, First Citizens Bancorporation, Inc. (Bancorporation) completed three FDIC-assisted transactions: Georgian Bank of Atlanta, Georgia (acquired in 2009); Williamsburg First National Bank of Williamsburg, South Carolina (acquired in 2010); and Atlantic Bank & Trust of Charleston, South Carolina (acquired in 2011). Nine of the eleven FDIC-assisted transactions (including the three completed by Bancorporation) included loss share agreements that, for their terms, protect us from a portion of the credit and asset quality risk we would otherwise incur. The CCBT and NMSB transactions did not include a loss share agreement.

For those acquired loans with loss share agreements, generally, losses on single family residential loans are covered for ten years. All other loans are generally covered for five years. At March 31, 2016, $258.2 million of total loans and leases remain covered under loss share agreements. At the beginning of the second, third and fourth quarters of 2016, the loss share protection will expire for non-single family residential loans acquired from United Western Bank (UWB), Atlantic Bank and Trust (ABT) and Colorado Capital Bank (CCB), respectively. The loan balances at March 31, 2016 for the expiring agreements from UWB, ABT and CCB were $113.7 million, $9.0 million and $2.7 million, respectively. At December 31, 2016, loss share protection

41

will have expired for all non-single family residential loans and loss share protection will remain only for single family residential loans acquired with loss share agreements. We will process all necessary filings in accordance with the agreements before expiration to collect the earned loss share receivables. Going forward, we will continue to manage these loans and loan relationships for which loss share has expired in accordance with our standard credit administration policies and procedures.

Table 3

Consolidated Quarter-to-Date Average Taxable-Equivalent Balance Sheets

	Three months ended
	March 31, 2016							December 31, 2015							March 31, 2015
				Interest							Interest							Interest
	Average			Income/		Yield/		Average			Income/		Yield/		Average			Income/		Yield/
(Dollars in thousands)	Balance			Expense		Rate		Balance			Expense		Rate		Balance			Expense		Rate
Assets
Loans and leases	$	20,349,091		$	217,732	4.30		$	20,059,556		$	218,048	4.32	%	$	18,922,028		$	211,885	4.54	%
Investment securities:
U. S. Treasury	1,533,028			2,880		0.76		1,686,269			3,092		0.73		2,355,234			4,593		0.79
Government agency	463,597			1,031		0.89		599,048			1,282		0.86		938,356			1,708		0.73
Mortgage-backed securities	4,467,186			19,012		1.70		4,437,936			18,632		1.68		3,592,499			13,220		1.47
State, county and municipal	196			1		2.73		—			—		—		3,663			53		5.77
Other	46,241			257		2.24		7,930			205		10.30		—			—		—
Total investment securities	6,510,248			23,181		1.43		6,731,183			23,211		1.38		6,889,752			19,574		1.14
Overnight investments	2,699,290			3,666		0.54		2,774,976			2,030		0.29		2,420,143			1,338		0.22
Total interest-earning assets	29,558,629			$	244,579	3.32	%	29,565,715			$	243,289	3.27	%	28,231,923			$	232,797	3.34	%
Cash and due from banks	470,159							492,663							463,784
Premises and equipment	1,131,235							1,129,809							1,123,323
FDIC loss share receivable	8,742							11,773							28,430
Allowance for loan and lease losses	(206,338		)					(205,876		)					(203,389		)
Other real estate owned	65,616							65,043							91,729
Other assets	677,615							694,096							678,522
Total assets	$	31,705,658						$	31,753,223						$	30,414,322
Liabilities
Interest-bearing deposits:
Checking with interest	$	4,317,299		$	200	0.02	%	$	4,234,147		$	204	0.02	%	$	4,608,049		$	415	0.04	%
Savings	1,944,805			145		0.03		1,887,520			142		0.03		1,765,540			92		0.02
Money market accounts	8,335,030			1,642		0.08		8,175,228			1,605		0.08		7,821,438			1,641		0.09
Time deposits	3,061,333			2,672		0.35		3,200,354			2,900		0.36		3,515,525			3,481		0.40
Total interest-bearing deposits	17,658,467			4,659		0.11		17,497,249			4,851		0.11		17,710,552			5,629		0.13
Repurchase agreements	655,787			433		0.27		728,526			471		0.26		305,918			121		0.16
Other short-term borrowings	2,551			1		0.12		3,203			7		1.39		694,775			1,813		1.05
Long-term obligations	750,446			5,299		2.82		704,465			5,813		3.30		460,713			3,782		3.28
Total interest-bearing liabilities	19,067,251			$	10,392	0.22		18,933,443			$	11,142	0.23		19,171,958			$	11,345	0.24
Demand deposits	9,339,559							9,532,401							8,122,516
Other liabilities	378,237							420,202							395,129
Shareholders' equity	2,920,611							2,867,177							2,724,719
Total liabilities and shareholders'  equity	$	31,705,658						$	31,753,223						$	30,414,322
Interest rate spread						3.10	%						3.04	%						3.10	%
Net interest income and net yield on interest-earning assets				$	234,187	3.18	%				$	232,147	3.12	%				$	221,452	3.18	%

Loans and leases include PCI loans, non-PCI loans, nonaccrual loans and loans held for sale. Yields related to loans, leases and securities exempt from both federal and state income taxes, federal income taxes only, or state income taxes only are stated on a taxable-equivalent basis assuming statutory federal income tax rates of 35.0 percent for each period and state income tax rates of 5.5 percent, 5.5 percent and 6.0 percent for the three months ended March 31, 2016, December 31, 2015 and March 31, 2015, respectively. The taxable-equivalent adjustment was $1,467, $1,428 and $1,287 for the three months ended March 31, 2016, December 31, 2015 and March 31, 2015, respectively.

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Table 4

Changes in Consolidated Taxable Equivalent Net Interest Income

	Three months ended March 31, 2016
	Change from prior year period due to:
(Dollars in thousands)	Volume			Yield/Rate			Total Change
Assets
Loans and leases	$	16,623		$	(10,776	)	$	5,847
Investment securities:
U. S. Treasury	(1,576		)	(137		)	(1,713		)
Government agency	(959		)	282			(677		)
Mortgage-backed securities	3,470			2,322			5,792
State, county and municipal	(37		)	(15		)	(52		)
Other	257			—			257
Total investment securities	1,155			2,452			3,607
Overnight investments	278			2,050			2,328
Total interest-earning assets	$	18,056		$	(6,274	)	$	11,782
Liabilities
Interest-bearing deposits:
Checking with interest	$	(7	)	$	(208	)	$	(215	)
Savings	9			44			53
Money market accounts	155			(154		)	1
Time deposits	(412		)	(397		)	(809		)
Total interest-bearing deposits	(255		)	(715		)	(970		)
Repurchase agreements	184			128			312
Other short-term borrowings	(1,006		)	(806		)	(1,812		)
Long-term obligations	2,211			(694		)	1,517
Total interest-bearing liabilities	1,134			(2,087		)	(953		)
Change in net interest income	$	16,922		$	(4,187	)	$	12,735

The rate/volume variance is allocated equally between the changes in volume and rate.

RESULTS OF OPERATIONS

Net Interest Income and Margin

First Quarter 2016

Net interest income was $232.7 million, an increase of $12.6 million, or by 5.7 percent, from the first quarter of 2015. On a taxable-equivalent basis, net interest income was $234.2 million, an increase of $12.7 million, or 5.8 percent, from the first quarter of 2015. Loan interest income increased $5.5 million from the first quarter of 2015 as a result of originated loan growth and investment securities interest income improved by $3.7 million as proceeds from sales and maturities were reinvested into higher yielding investments. Net interest income also benefited from higher income earned on overnight investments as a result of the December 2015 increase in the federal funds rate and lower interest expense due to reduced interest-bearing deposit costs. These favorable impacts were offset by lower PCI loan accretion income resulting from PCI loan portfolio runoff. Accretion income on PCI loans was $21.4 million, compared to $25.1 million during the first quarter of 2015.

Net interest income increased $2.0 million, or by 0.9 percent, to $232.7 million from the fourth quarter of 2015. On a taxable-equivalent basis, net interest income increased $2.0 million, or by 0.9 percent, from $232.1 million during the fourth quarter of 2015. The increase in net interest income primarily resulted from higher interest income earned on excess cash held in overnight investments of $1.6 million and lower interest expense of $750 thousand due to reduced borrowing and deposit funding costs. The December 2015 increase in federal funds rate of 25 basis points contributed to higher interest income earned on overnight investments. These favorable impacts were offset by lower PCI loan accretion income resulting from PCI loan portfolio runoff. Accretion income on PCI loans was $21.4 million, compared to $22.9 million during the fourth quarter of 2015.

Accretion income on acquired loans, which is included in interest income and includes accretion income on both PCI and non-PCI loans and leases, declined by $2.2 million and $6.1 million from the fourth quarter of 2015 and the first quarter of 2015, respectively, primarily due to the continued runoff of acquired loans. Non-PCI accretion income was $3.2 million, compared to $3.9 million and $5.6 million in the fourth quarter of 2015 and first quarter of 2015, respectively. The current quarter decrease from both periods relates to the continued runoff of non-PCI loans acquired in the Bancorporation merger.

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The taxable-equivalent net interest margin increased 6 basis points to 3.18 percent in the first quarter of 2016, compared to the fourth quarter of 2015. The margin improvement was due to continued originated loan growth, improvement in investment yields and lower borrowing costs, partially offset by PCI loan portfolio runoff. The December 2015 increase in federal funds rate of 25 basis points contributed to higher interest income earned on overnight investments. The taxable equivalent net interest margin was unchanged from 3.18 percent from the same quarter in the prior year.

Average quarter-to-date interest earning assets decreased by $7.1 million since the fourth quarter of 2015, reflecting a $220.9 million decline in average investment securities and a reduction in average overnight investments of $75.7 million. These decreases were partially offset by a $289.5 million increase in average outstanding loans due to originated loan growth. Average investment securities declined as sales, maturities and paydowns exceeded purchases during the quarter. Average quarter-to-date interest earning assets increased by $1.33 billion compared to the same quarter in the prior year. Growth in average interest-earning assets was primarily funded by growth in deposits. Within interest-earning assets, loans experienced the most significant increase, primarily due to originated loan growth.

Average interest-bearing liabilities increased by $133.8 million compared to the fourth quarter of 2015, due to a $161.2 million increase in average interest-bearing deposits and a $46.0 million increase in average long-term obligations, partially offset by a $73.4 million decline in average short-term borrowings. The decline in short-term borrowings was due to a reduction in average repurchase obligations, while the increase in long-term obligations was due to the addition of $75.0 million Federal Home Loan Bank (FHLB) advances during the first quarter of 2016 to mitigate interest rate risk from long-term fixed rate loans. When compared to the same quarter in the prior year, average interest-bearing liabilities decreased $104.7 million and the rate on interest-bearing liabilities decreased 2 basis points to 0.22 percent. The decline in the rate on interest-bearing liabilities was the result of lower borrowings levels and funding costs in the first quarter of 2016.

Noninterest Income

Noninterest income is an essential component of our total revenue and is critical to our ability to sustain adequate profitability levels. The primary sources of noninterest income have traditionally consisted of cardholder services income, merchant services income, service charges on deposit accounts and revenues derived from wealth management services. Recoveries on PCI loans that have been previously charged-off are additional sources of noninterest income. BancShares records the portion of recoveries not covered under loss share agreements as noninterest income rather than as an adjustment to the allowance for loan losses since charge-offs on PCI loans are recorded against the discount recognized on the date of acquisition versus the allowance for loan losses.

Table 5

Noninterest Income

	Three months ended
(Dollars in thousands)	March 31, 2016			December 31, 2015			March 31, 2015
Gain on acquisition	$	1,704		$	—		$	42,930
Cardholder services	19,358			20,139			18,401
Merchant services	21,977			21,252			18,880
Service charges on deposit accounts	21,850			22,974			22,058
Wealth management services	19,634			18,207			20,880
Securities gains (losses)	4,628			(20		)	5,126
Other service charges and fees	6,989			6,504			5,455
Mortgage income	1,311			3,196			4,549
Insurance commissions	3,178			3,059			3,297
ATM income	1,765			1,830			1,664
Adjustments to FDIC receivable for loss share agreements	(2,533		)	(9,279		)	(1,047		)
Recoveries of PCI loans previously charged off	2,884			5,209			5,498
Other	2,537			6,064			3,062
Total noninterest income	$	105,282		$	99,135		$	150,753

In the first quarter of 2016, noninterest income was $105.3 million, an increase of $6.1 million from the fourth quarter of 2015. The change from the fourth quarter of 2015 was attributable to the following drivers:

• Gains on sales of investment securities were $4.6 million triggered in response to changing market conditions and to better position the investment portfolio for a rising rate environment.

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• Lower FDIC receivable adjustments of $6.7 million resulting from net losses on sales of covered other real estate owned (OREO) in the current quarter.

• The $1.7 million gain on acquisition of NMSB in the current quarter.

• Recoveries of PCI loans previously charged off declined $2.3 million.

• Mortgage income declined $1.9 million due to a $1.9 million impairment charge on mortgage servicing assets driven by a decline in interest rates during the quarter.

Noninterest income excluding acquisition gains decreased by $4.2 million from the same quarter in the prior year. The decrease was primarily driven by a $3.2 million decline in mortgage income due to declines in interest rates, a $2.6 million decrease in recoveries of PCI loans previously charged-off, higher unfavorable adjustments to the FDIC receivable of $1.5 million, and a decline in wealth management income of $1.2 million. The decreases were partially offset by a $3.1 million increase in merchant income due to higher sales volumes.

Noninterest Expense

The primary components of noninterest expense are salaries and related employee benefits, occupancy costs, facilities and equipment expense and merchant processing expenses.

Table 6

Noninterest Expense

	Three months ended
(Dollars in thousands)	March 31, 2016		December 31, 2015			March 31, 2015
Salaries and wages	$	103,899	$	105,384		$	105,471
Employee benefits	27,350		26,968			31,218
Occupancy expense	25,012		24,779			25,620
Equipment expense	22,345		23,355			23,541
FDIC insurance expense	4,789		4,585			4,271
Foreclosure-related expenses	1,731		(2,001		)	2,557
Merger-related expenses	38		2,925			2,997
Merchant processing expense	15,087		14,140			13,856
Processing fees paid to third parties	4,102		4,269			5,395
Card processing expense	6,084		6,476			4,941
Consultant expense	1,771		2,501			2,128
Collection expense	2,581		2,522			2,300
Advertising expense	2,055		4,756			1,913
Core deposit intangible amortization	4,318		4,487			4,955
Other	30,509		30,740			27,003
Total noninterest expense	$	251,671	$	255,886		$	258,166

Noninterest expense was $251.7 million in the first quarter of 2016, a decline of $4.2 million from the fourth quarter of 2015. The following items impacted various noninterest expense categories:

• Merger-related expenses declined $2.9 million primarily due to costs associated with the Bancorporation merger.

• Advertising costs decreased by $2.7 million primarily as a result of a corporate sponsorship campaign in the fourth quarter of 2015.

• Personnel expenses declined $1.1 million primarily due to one additional business day in the fourth quarter of 2015 and higher deferrals of salary costs related to loan origination activity.

• Equipment expense decreased $1.0 million primarily due to a reduction in depreciation and maintenance expense.

• Foreclosure-related expenses increased $3.7 million primarily due to a net loss on sales of acquired OREO during the current quarter.

Noninterest expense decreased $6.5 million in the first quarter of 2016 from $258.2 million in the first quarter of 2015. The decrease was due to a decline in personnel expenses of $5.4 million related to lower pension and higher deferrals of salary costs

45

for loan originations and $3.0 million decrease in merger-related expenses. These declines were partially offset by a $1.2 million increase in merchant processing and $1.1 million increase in card processing expenses due to higher sales volumes.

Income Taxes

Income tax expense was $29.4 million, $24.2 million and $39.8 million for the first quarter of 2016, fourth quarter of 2015 and first quarter of 2015, representing effective tax rates of 36.1 percent, 36.1 percent and 37.2 percent during the respective periods. The higher effective tax rate for the first quarter of 2015 was primarily attributable to increased pre-tax earnings as a result of the CCBT acquisition gain.

We monitor and evaluate the potential impact of current events on the estimates used to establish income tax expenses and income tax liabilities. On a periodic basis, we evaluate our income tax positions based on current tax law, positions taken by various tax auditors within the jurisdictions where BancShares is required to file income tax returns, as well as potential or pending audits or assessments by tax auditors.

INTEREST-EARNING ASSETS

Interest-earning assets include loans and leases, investment securities, and overnight investments, all of which reflect varying interest rates based on the risk level and repricing characteristics of the underlying asset. Riskier investments typically carry a higher interest rate but expose us to higher levels of market risk.

We have historically focused on maintaining high-asset quality, which results in a loan and lease portfolio subjected to strenuous underwriting and monitoring procedures. We avoid high-risk industry concentrations, but we do maintain a concentration of owner-occupied real estate loans to borrowers in medical and medical-related fields. Our focus on asset quality also influences the composition of our investment securities portfolio.

Interest-earning assets averaged $29.56 billion and $29.57 billion for the quarter ended March 31, 2016 and December 31, 2015, respectively. The $7.1 million decline from December 31, 2015 was due to a $296.6 million decline in investment securities and overnight investments, partially offset by a $289.5 million increase in loans and leases as a result of originated loan growth.

Investment Securities

Investment securities were $6.69 billion at March 31, 2016, compared to $6.86 billion and $7.05 billion at December 31, 2015 and March 31, 2015, respectively. The $174.0 million and $357.8 million decrease in the portfolio from December 31, 2015 and March 31, 2015, respectively, was attributable to reinvesting a portion of the proceeds from sales, maturities and calls into overnight investments pending reinvestment. The yield on overnight investments benefited from the December 2015 increase in the federal funds rate of 25 basis points.

Available for sale securities are reported at fair value and unrealized gains and losses are included as a component of other comprehensive income, net of deferred taxes. As of March 31, 2016, investment securities available for sale had a net pre-tax unrealized gain of $38.9 million, compared to a net pre-tax unrealized loss of $24.5 million as of December 31, 2015 and a net unrealized gain of $33.6 million as of March 31, 2015. After evaluating the securities with unrealized losses, management concluded that no other than temporary impairment existed as of March 31, 2016.

At March 31, 2016, mortgage-backed securities represented 70.7 percent of investment securities available for sale, compared to U.S. Treasury, government agency securities, equity securities and other, which represented 23.0 percent, 5.3 percent, 0.8 percent and 0.2 percent of the portfolio, respectively. Overnight investments are with the Federal Reserve Bank and other financial institutions.

Since December 31, 2015, cash flows from the sales, maturities and calls of U.S. Treasury and government agency securities were reinvested into mortgage-backed securities and equity securities in order to optimize earnings and manage overall risk of the investment portfolio. As a result, the carrying value of mortgage-backed securities issued by government sponsored enterprises and equity securities increased by $59.1 million and $43.2 million, respectively, while U.S. Treasury securities decreased $133.7 million and government agency securities declined $142.5 million.

The primary objective of the investment portfolio is to generate incremental income by deploying excess funds into securities that have minimal liquidity and credit risk and low to moderate interest rate risk. Other objectives include acting as a stable source of liquidity, serving as a tool for asset and liability management and maintaining an interest rate risk profile compatible

46

with BancShares' objectives. Changes in the total balance of our investment securities portfolio result from trends among loans and leases, deposits and short-term borrowings. Generally, when inflows arising from deposit and treasury services products exceed loan and lease demand, we invest excess funds into the securities portfolio or into overnight investments. Conversely, when loan demand exceeds growth in deposits and short-term borrowings, we allow any overnight investments to decline and use proceeds from maturing securities and prepayments to fund loan demand.

Table 7

Investment Securities

	March 31, 2016				December 31, 2015				March 31, 2015
(Dollars in thousands)	Cost		Fair value		Cost		Fair value		Cost		Fair Value
Investment securities available for sale:
U.S. Treasury	$	1,538,907	$	1,541,215	$	1,675,996	$	1,674,882	$	2,237,002	$	2,246,966
Government agency	355,488		356,157		498,804		498,660		988,563		990,894
Mortgage-backed securities	4,693,313		4,727,282		4,692,447		4,668,198		3,785,912		3,807,249
Equity securities	50,066		52,095		7,935		8,893		—		—
Other	10,615		10,540		10,615		10,660		—		—
Total investment securities available for sale	6,648,389		6,687,289		6,885,797		6,861,293		7,011,477		7,045,109
Investment securities held to maturity:
Mortgage-backed securities	194		203		255		265		441		459
Total investment securities	$	6,648,583	$	6,687,492	$	6,886,052	$	6,861,558	$	7,011,918	$	7,045,568

Loans and Leases

Loans were $20.42 billion at March 31, 2016, a net increase of $177.7 million compared to December 31, 2015, representing growth of 3.5 percent on an annualized basis. Originated loans increased by $182.3 million primarily due to continued commercial portfolio growth. PCI loans decreased by $4.6 million, reflecting loan runoff of $39.9 million, partially offset by net loans acquired from NMSB of $35.3 million at March 31, 2016.

Non-PCI loans increased by $1.63 billion, compared to March 31, 2015, reflecting originated loan growth. PCI loans decreased by $306.7 million from March 31, 2015, due to continued pay downs in the PCI loan portfolio, offset by the contribution from the NMSB acquisition.

BancShares reports PCI and non-PCI loan portfolios separately and each portfolio is further divided into commercial and non-commercial. Additionally, loans are assigned to loan classes, which further disaggregate loans based upon common risk characteristics, such as commercial real estate, commercial and industrial or residential mortgage. Table 8 provides the composition of PCI and non-PCI loans and leases.

PCI Loans

The PCI portfolio includes loans acquired in a transfer, including business combinations, where there is evidence of credit

deterioration since origination and it is probable at the date of acquisition that we will not collect all contractually required

principal and interest payments. All nonrevolving loans are evaluated at acquisition and where a discount is required at least in part due to credit quality, the loans are accounted for under the guidance in ASC Topic 310-30. PCI loans and leases are valued at fair value at the date of acquisition.

PCI loans at March 31, 2016 were $945.9 million, representing 4.6 percent of total loans and leases, compared to $950.5 million and $1.25 billion at December 31, 2015 and March 31, 2015, respectively.

PCI commercial loans were $594.2 million at March 31, 2016, an increase of $613 thousand since December 31, 2015 and a decrease of $201.8 million since March 31, 2015. At March 31, 2016, PCI noncommercial loans were $351.7 million, a decrease of $5.2 million and $104.8 million since December 31, 2015 and March 31, 2015, respectively. The runoff in the PCI loan portfolio was offset by the contribution from the NMSB acquisition.

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Non-PCI Loans and Leases

The non-PCI portfolio includes loans that management has the intent and ability to hold and is reported at the principal balance

outstanding, net of deferred loan fees and costs. Non-PCI loans include originated commercial loans and leases, originated noncommercial loans, purchased non-impaired loans, purchased leases and certain purchased revolving credit. For purchased non-impaired loans to be included as non-PCI, it must be determined that the loans do not have a discount at least in part due to credit quality at the time of acquisition. Purchased non-impaired loans are initially recorded at their fair value at the date of acquisition.

Non-PCI loans at March 31, 2016 were $19.47 billion, representing 95.4 percent of total loans and leases, compared to $19.29 billion and $17.84 billion at December 31, 2015 and March 31, 2015, respectively.

The non-PCI commercial loan portfolio is composed of Commercial Mortgage, Commercial and Industrial, Construction and Land Development, Lease Financing, Other Commercial Real Estate and Other Commercial loans. Non-PCI commercial loans were $12.79 billion at March 31, 2016, an increase of $159.4 million and $1.30 billion, compared to December 31, 2015 and March 31, 2015, respectively, resulting from continued loan growth.

The non-PCI noncommercial loan portfolio is composed of Residential Mortgage, Revolving Mortgage, Consumer and Construction and Land Development loans. Non-PCI noncommercial loans were $6.68 billion at March 31, 2016, an increase of $22.9 million and $330.9 million compared to December 31, 2015 and March 31, 2015, respectively.

Table 8

Loans and Leases

(Dollars in thousands)	March 31, 2016		December 31, 2015		March 31, 2015
Non-PCI loans and leases:
Commercial:
Construction and land development	$	626,311	$	620,352	$	608,556
Commercial mortgage	8,353,631		8,274,548		7,591,745
Other commercial real estate	324,858		321,021		262,293
Commercial and industrial	2,389,946		2,368,958		2,072,414
Lease financing	751,292		730,778		603,737
Other	343,877		314,832		354,713
Total commercial loans	12,789,915		12,630,489		11,493,458
Noncommercial:
Residential mortgage	2,718,208		2,695,985		2,524,549
Revolving mortgage	2,521,902		2,523,106		2,528,257
Construction and land development	213,232		220,073		170,208
Consumer	1,228,545		1,219,821		1,127,942
Total noncommercial loans	6,681,887		6,658,985		6,350,956
Total non-PCI loans and leases	19,471,802		19,289,474		17,844,414
PCI loans:
Commercial:
Construction and land development	32,799		33,880		69,944
Commercial mortgage	526,776		525,468		658,376
Other commercial real estate	18,050		17,076		40,911
Commercial and industrial	14,742		15,182		23,929
Other	1,860		2,008		2,886
Total commercial loans	594,227		593,614		796,046
Noncommercial:
Residential mortgage	298,662		302,158		381,691
Revolving mortgage	50,574		52,471		70,363
Construction and land development	—		—		874
Consumer	2,424		2,273		3,571
Total noncommercial loans	351,660		356,902		456,499
Total PCI loans	945,887		950,516		1,252,545
Total loans and leases	$	20,417,689	$	20,239,990	$	19,096,959

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Allowance for Loan and Lease Losses (ALLL)

The ALLL was $206.8 million at March 31, 2016, representing increases of $567 thousand and $1.2 million since December 31, 2015 and March 31, 2015, respectively. The increase in the ALLL for non-PCI loans and leases, primarily due to loan growth, offset the continued reduction in the ALLL for PCI loans due to portfolio runoff. The ALLL as a percentage of total loans and leases was 1.01 percent at March 31, 2016, compared to 1.02 percent and 1.08 percent at December 31, 2015 and March 31, 2015, respectively. The decline in the ALLL ratio from December 31, 2015 was primarily due to lower reserves on PCI loans due to runoff in the portfolio. The decline in the ALLL ratio from March 31, 2015 was due to credit quality improvements and lower reserves on PCI loans due to portfolio runoff.

At March 31, 2016, the ALLL allocated to non-PCI loans and leases was $193.0 million, or 0.99 percent of non-PCI loans and leases, compared to $189.9 million, or 0.98 percent, at December 31, 2015 and $187.9 million, or 1.05 percent, at March 31, 2015. An additional ALLL of $13.8 million relates to PCI loans at March 31, 2016, compared to $16.3 million and $17.6 million at December 31, 2015 and March 31, 2015, respectively. The ALLL on the PCI loan portfolio continues to decline consistent with the runoff of this portfolio.

The ALLL allocated to originated non-PCI loans and leases was 1.14 percent of originated non-PCI loans and leases at March 31, 2016, unchanged from December 31, 2015 and compared to 1.32 percent at March 31, 2015. Originated non-PCI loans were $16.98 billion, $16.60 billion and $14.29 billion at March 31, 2016, December 31, 2015 and March 31, 2015, respectively, and do not include purchased revolving, purchased non-PCI loans or PCI loans.

BancShares continues to experience improved credit quality indicators which have reduced the ALLL ratio since March 31, 2015. In the commercial non-PCI loan portfolio, credit quality improvements included low net charge-off ratios and migration of loans with higher credit risk ratings to lower ratings. The noncommercial non-PCI loan portfolio also experienced lower delinquency trends. Additionally, impaired non-PCI loan reserves have been lower due to improved cash flow and higher collateral values for impaired loans.

BancShares recorded $4.8 million net provision expense for loan and lease losses during the first quarter of 2016, compared to net provision expense of $7.0 million in the fourth quarter of 2015. The decline of $2.2 million was due to lower net charge-offs on non-PCI loans and leases and higher impairment reversals on PCI loans. Compared to the first quarter of 2015, provision expense decreased $949 thousand due primarily to lower originated loan growth, partially offset by lower impairment reversals on PCI loans. On an annualized basis, total net charge-offs as a percentage of total average loans and leases decreased during the first quarter of 2016 to 0.08 percent, compared to 0.12 percent in the fourth quarter of 2015 and 0.10 percent in the first quarter of 2015.

Provision expense for non-PCI loan and leases was $6.8 million during the first quarter of 2016, compared to $7.9 million in the fourth quarter of 2015, a decline of $1.1 million primarily due to lower loan growth and net charge-offs. Compared to the first quarter of 2015, provision expense decreased $1.8 million primarily due to lower loan growth. Net charge-offs for non-PCI loans and leases were $3.7 million during the first quarter of 2016, compared to $6.0 million and $3.6 million during the fourth quarter of 2015 and first quarter of 2015, respectively. On an annualized basis, non-PCI net charge-offs as a percentage of non-PCI average loans and leases during the first quarter of 2016 were 0.08 percent, down from 0.12 percent during the fourth quarter of 2015 and unchanged from the first quarter of 2015.

The PCI loan net provision credit was $2.0 million during the first quarter of 2016, compared to net provision credits of $903 thousand and $2.9 million for the fourth quarter of 2015 and first quarter of 2015, respectively.

Management considers the ALLL adequate to absorb estimated inherent losses that relate to loans and leases outstanding at March 31, 2016, although future adjustments may be necessary based on changes in economic conditions and other factors. In addition, various regulatory agencies, as an integral part of their examination process, periodically review the ALLL. Such agencies may require adjustments to the ALLL based on information available to them at the time of their examination.

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Table 9

Allowance for Loan and Lease Losses Components by Loan Class

	2016			2015
	First			Fourth			Third			Second			First
(Dollars in thousands)	Quarter			Quarter			Quarter			Quarter			Quarter
Allowance for loan and lease losses at beginning of period	$	206,216		$	205,463		$	208,317		$	205,553		$	204,466
Non-PCI provision for loan and lease losses:
Commercial:
Construction and land development	943			2,393			1,189			88			1,103
Commercial mortgage	394			(4,600		)	(5,664		)	(1,878		)	(3,679		)
Other commercial real estate	(104		)	1,047			291			(227		)	458
Commercial and industrial	2,201			6,137			(799		)	4,547			7,546
Lease financing	(282		)	759			424			408			11
Other	(328		)	680			(58		)	(1,824		)	(218		)
Total commercial loans	2,824			6,416			(4,617		)	1,114			5,221
Noncommercial:
Residential mortgage	776			1,707			520			1,162			813
Revolving mortgage	1,158			(1,366		)	871			31			(462		)
Construction and land development	87			235			114			74			118
Consumer	1,995			957			450			6,613			2,966
Total noncommercial loans	4,016			1,533			1,955			7,880			3,435
Total non-PCI provision	6,840			7,949			(2,662		)	8,994			8,656
PCI provision for loan losses	(1,997		)	(903		)	2,769			(1,275		)	(2,864		)
Non-PCI Charge-offs:
Commercial:
Construction and land development	(426		)	(437		)	(336		)	(221		)	(18		)
Commercial mortgage	(90		)	(809		)	(411		)	(47		)	(233		)
Other commercial real estate	—			—			—			(9		)	(169		)
Commercial and industrial	(1,317		)	(1,137		)	(784		)	(2,318		)	(1,713		)
Lease financing	—			(374		)	(7		)	(6		)	(15		)
Other	(71		)	—			—			—			—
Total commercial loans	(1,904		)	(2,757		)	(1,538		)	(2,601		)	(2,148		)
Noncommercial:
Residential mortgage	(174		)	(851		)	(394		)	(90		)	(284		)
Revolving mortgage	(1,036		)	(840		)	(677		)	(616		)	(793		)
Construction and land development	—			—			—			—			(22		)
Consumer	(3,108		)	(3,761		)	(2,409		)	(2,743		)	(2,783		)
Total noncommercial loans	(4,318		)	(5,452		)	(3,480		)	(3,449		)	(3,882		)
Total non-PCI charge-offs	(6,222		)	(8,209		)	(5,018		)	(6,050		)	(6,030		)
Non-PCI Recoveries:
Commercial:
Construction and land development	80			271			129			104			62
Commercial mortgage	256			150			794			323			761
Other commercial real estate	143			11			15			9			10
Commercial and industrial	479			11			296			209			394
Lease financing	180			—			16			11			11
Other	321			—			45			31			15
Total commercial loans	1,459			443			1,295			687			1,253
Noncommercial:
Residential mortgage	20			104			314			305			138
Revolving mortgage	32			330			363			346			134
Construction and land development	3			—			3			3			68
Consumer	990			1,381			762			630			878
Total noncommercial loans	1,045			1,815			1,442			1,284			1,218
Total non-PCI recoveries	2,504			2,258			2,737			1,971			2,471
Non-PCI loans and leases charged off, net	(3,718		)	(5,951		)	(2,281		)	(4,079		)	(3,559		)
PCI loans charged off, net	$	(558	)	(342		)	(680		)	(876		)	(1,146		)
Allowance for loan and lease losses at end of period	$	206,783		$	206,216		$	205,463		$	208,317		$	205,553
Reserve for unfunded commitments	$	407		$	379		$	411		$	389		$	404

The provision expense for commercial mortgage non-PCI loans and leases was $394 thousand for the three months ended March 31, 2016, compared to a net provision credit of $3.7 million for the same period of 2015. The increase in provision expense was primarily due to higher loan growth in 2016 compared to the prior year.

Other commercial real estate non-PCI loans and leases had a net provision credit of $104 thousand for the three months ended March 31, 2016, compared to provision expense of $458 thousand for the same period of 2015. The decline in provision was due to lower net charge-offs during the current quarter.

The provision expense for commercial and industrial non-PCI loans and leases was $2.2 million for the three months ended March 31, 2016, compared to provision expense of $7.5 million for the same period of 2015. The decrease in provision expense was due to lower loan growth and net charge-offs in 2016 compared to 2015.

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Lease financing non-PCI loans and leases had a net provision credit of $282 thousand for the three months ended March 31, 2016, compared to provision expense of $11 thousand for the same period of 2015. The decrease in provision expense was due to lower net charge-offs and improved credit quality metrics during the current quarter.

The provision expense for revolving mortgage non-PCI loans and leases was $1.2 million for the three months ended March 31, 2016, compared to a net provision credit of $462 thousand for the same period of 2015. The increase in provision expense was due to higher net charge-offs in 2016.

Table 10

Allowance for Loan and Lease Losses Metrics and Ratios

	2016			2015
	First			Fourth			Third			Second			First
(Dollars in thousands)	Quarter			Quarter			Quarter			Quarter			Quarter
Average loans and leases:
PCI	$	939,839		$	996,637		$	1,081,497		$	1,173,105		$	1,200,484
Non-PCI	19,409,252			19,062,919			18,679,648			18,181,718			17,721,544
Loans and leases at period-end:
PCI	945,887			950,516			1,044,064			1,123,239			1,252,545
Non-PCI	19,471,802			19,289,474			18,811,742			18,396,946			17,844,414
Allowance for loan and lease losses allocated to loans and leases:
PCI	13,757			16,312			17,557			15,468			17,619
Non-PCI	193,026			189,904			187,906			192,849			187,934
Total	206,783			206,216			205,463			208,317			205,553
Net charge-offs (annualized) to average loans and leases:
PCI	0.24		%	0.14		%	0.25		%	0.30		%	0.39		%
Non-PCI	0.08			0.12			0.05			0.09			0.08
Total	0.08			0.12			0.06			0.10			0.10
ALLL to total loans and leases:
PCI	1.45			1.72			1.68			1.38			1.41
Non-PCI	0.99			0.98			1.00			1.05			1.05
Total	1.01			1.02			1.03			1.07			1.08

The ALLL as a percentage of total loans at March 31, 2016 was 1.01 percent, compared to 1.02 percent at December 31, 2015 and 1.08 percent at March 31, 2015.

The following non-GAAP reconciliation in Table 11 provides a calculation of the adjusted ALLL and the related adjusted ALLL as a percentage of total loans and leases for the periods presented. Management uses these non-GAAP financial measures to monitor performance and believes this measure provides meaningful information as the remaining unamortized discounts provide coverage for losses similar to the ALLL. Non-GAAP financial measures have limitations as analytical tools, and should not be considered in isolation or as a substitute for analysis of BancShares' results or financial condition as reported under GAAP.

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Table 11

Adjusted Allowance for Loan and Lease Losses (Non-GAAP)

	2016			2015
	First			Fourth			Third			Second			First
(Dollars in thousands)	Quarter			Quarter			Quarter			Quarter			Quarter
ALLL on non-PCI loans and leases (GAAP)	$	193,026		$	189,904		$	187,906		$	192,849		$	187,934
Unamortized discount related to non-PCI loans and leases (GAAP)	37,878			41,124			45,068			49,309			55,738
Adjusted ALLL on non-PCI loans and leases (non-GAAP)	230,904			231,028			232,974			242,158			243,672
ALLL on PCI loans (GAAP)	13,757			16,312			17,557			15,468			17,619
Unamortized discount related to PCI loans (GAAP)	140,379			137,819			154,624			172,962			196,256
Adjusted ALLL on PCI loans (non-GAAP)	154,136			154,131			172,181			188,430			213,875
Total ALLL (GAAP)	206,783			206,216			205,463			208,317			205,553
Net acquisition accounting fair value discounts on loans and leases (GAAP)	178,257			178,943			199,692			222,271			251,994
Adjusted ALLL (non-GAAP)	$	385,040		$	385,159		$	405,155		$	430,588		$	457,547
Adjusted ALLL to total loans and leases (non-GAAP):
Non-PCI	1.19		%	1.20		%	1.24		%	1.32		%	1.37		%
PCI	16.30			16.22			16.49			16.78			17.08
Total	1.89			1.90			2.04			2.21			2.40

The adjusted ALLL (non-GAAP), which includes the ALLL as well as remaining net acquisition fair value adjustments for acquired loans, declined to 1.89 percent of total loans and leases at March 31, 2016, from 1.90 percent and 2.40 percent of total loans and leases at December 31, 2015 and March 31, 2015, respectively. The reduction in the adjusted ALLL resulted primarily from credit quality improvements and continued accretion of acquisition accounting fair value adjustments.

Nonperforming Assets

Nonperforming assets include nonaccrual loans and leases and OREO resulting from both PCI and non-PCI loans. At March 31, 2016, BancShares’ nonperforming assets were $162.8 million, a decline of $6.2 million and $20.1 million from December 31, 2015 and March 31, 2015, respectively, related to overall reductions in OREO balances and nonaccrual loans and leases.

OREO balances have declined $491 thousand and $24.9 million since December 31, 2015 and March 31, 2015, respectively, primarily due to sales and write-downs outpacing new additions. Nonaccrual PCI loans at March 31, 2016 are down $260 thousand and $19.6 million from December 31, 2015 and March 31, 2015, respectively, due to resolutions of impaired loans. Nonaccrual non-PCI loans and leases at March 31, 2016 have declined $5.4 million from December 31, 2015 as a result of problem asset resolutions primarily in the commercial loan portfolio, while nonaccrual non-PCI loans and leases increased $24.4 million from March 31, 2015 due to the downgrade of a few large commercial mortgage relationships and an increase in residential mortgage loans being placed on nonaccrual status.

Of the $162.8 million in nonperforming assets at March 31, 2016, $12.7 million related to loans and OREO covered by loss share agreements. Covered nonperforming assets continue to decline due to the expiration of FDIC loss share agreements and loan resolutions; however, covered OREO increased $2.9 million from December 31, 2015 as a result of a large covered commercial loan relationship moving to OREO during the current quarter.

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Table 12

Nonperforming Assets

	2016			2015
	First			Fourth			Third			Second			First
(Dollars in thousands)	Quarter			Quarter			Quarter			Quarter			Quarter
Nonaccrual loans and leases:
Non-PCI	$	90,455		$	95,854		$	87,276		$	73,435		$	66,046
PCI	7,319			7,579			5,329			8,672			26,930
Other real estate	65,068			65,559			69,859			73,248			89,992
Total nonperforming assets	$	162,842		$	168,992		$	162,464		$	155,355		$	182,968
Nonaccrual loans and leases:
Covered under loss share agreements	$	2,968		$	2,992		$	3,171		$	2,732		$	21,440
Not covered under loss share agreements	94,806			100,441			89,434			79,375			71,536
Other real estate:
Covered	9,734			6,817			8,152			12,890			17,302
Noncovered	55,334			58,742			61,707			60,358			72,690
Total nonperforming assets	$	162,842		$	168,992		$	162,464		$	155,355		$	182,968
Loans and leases:
Covered	$	258,179		$	272,554		$	296,476		$	319,665		$	443,055
Noncovered	20,159,510			19,967,436			19,559,330			19,200,520			18,653,904
Accruing loans and leases 90 days or more past due
Non-PCI	4,882			3,315			6,277			4,960			3,089
PCI	70,398			73,751			73,539			81,055			96,041
Ratio of nonperforming assets to total loans, leases and other real estate owned:
Covered	4.74		%	3.51		%	3.72		%	4.70		%	8.42		%
Noncovered	0.74			0.79			0.77			0.73			0.77
Total	0.80			0.83			0.82			0.79			0.95

Troubled Debt Restructurings

Troubled debt restructurings (TDRs) are selectively made to provide relief to customers experiencing liquidity challenges or other circumstances that could affect their ability to meet their debt obligations. Typical modifications include short-term deferral of interest or modification of payment terms. Nonperforming TDRs are not accruing interest and are included as nonperforming assets within nonaccrual loans and leases. TDRs which are accruing at the time of restructure and continue to perform based on the restructured terms are considered performing.

Total PCI and non-PCI loans and leases classified as TDRs at March 31, 2016 were $141.4 million, compared to $144.8 million at December 31, 2015 and $157.0 million at March 31, 2015. Accruing TDRs were $113.7 million, an increase of $433 thousand and a decrease of $17.7 million from December 31, 2015 and March 31, 2015, respectively. At March 31, 2016, nonaccruing TDRs were $27.7 million, a decrease of $3.9 million and an increase of $2.1 million from December 31, 2015 and March 31, 2015, respectively. The decrease in nonaccruing TDRs from December 31, 2015 was primarily related to large payoffs in the commercial loan portfolio.

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Table 13

Troubled Debt Restructurings

(Dollars in thousands)	March 31, 2016		December 31, 2015		March 31, 2015
Accruing TDRs:
PCI	$	29,410	$	29,231	$	44,582
Non-PCI	84,319		84,065		86,884
Total accruing TDRs	113,729		113,296		131,466
Nonaccruing TDRs:
PCI	923		1,420		1,999
Non-PCI	26,745		30,127		23,526
Total nonaccruing TDRs	27,668		31,547		25,525
All TDRs:
PCI	30,333		30,651		46,581
Non-PCI	111,064		114,192		110,410
Total TDRs	$	141,397	$	144,843	$	156,991

INTEREST-BEARING LIABILITIES

Interest-bearing liabilities include interest-bearing deposits, short-term borrowings and long-term obligations. Interest-bearing liabilities were $19.17 billion and $18.96 billion at March 31, 2016 and December 31, 2015, respectively. The $217.0 million increase from December 31, 2015 was due to $75.0 million of new Federal Home Loan Bank (FHLB) borrowings during the quarter, a $94.5 million increase in repurchase agreements and organic growth in interest-bearing deposits of $47.5 million. Interest-bearing liabilities decreased $54.5 million from March 31, 2015 primarily due to a $112.8 million reduction in interest-bearing deposits, subordinated debt maturities of $199.9 million, maturities of FHLB advances of $10.0 million and a $42.7 million reduction in repurchase agreements. These decreases were partially offset by $305.0 million in additional FHLB borrowings.

Deposits

At March 31, 2016, total deposits were $27.37 billion, an increase of $434.5 million, or 1.61 percent, when compared to December 31, 2015 due to organic growth in low-cost demand deposit and savings accounts. Deposits increased $1.06 billion, or by 4.0 percent, when compared to March 31, 2015, primarily the result of organic growth in demand deposit, checking with interest and savings accounts.

Due to our focus on maintaining a strong liquidity position, core deposit retention remains a key business objective. We believe that traditional bank deposit products remain an attractive option for many customers, but as economic conditions improve, we recognize that our liquidity position could be adversely affected as bank deposits are withdrawn and invested elsewhere. Our ability to fund future loan growth is dependent on our success at retaining existing deposits and generating new deposits at a reasonable cost.

Short-Term Borrowings

At March 31, 2016, short-term borrowings were $689.2 million compared to $594.7 million and $941.9 million at December 31, 2015 and March 31, 2015, respectively. The $94.5 million increase from December 31, 2015 was due to higher activity in customer repurchase agreements. The $252.6 million decrease from March 31, 2015 was due to maturities of FHLB borrowings of $10.0 million, maturities of subordinated debt of $199.9 million and a $42.7 million reduction in customer repurchase agreements.

Long-Term Obligations

Long-term obligations were $779.1 million at March 31, 2016, up $74.9 million from December 31, 2015 primarily the result of incremental FHLB borrowings of $75.0 million during 2016 to mitigate interest rate risk from long-term fixed rate loans. Long-term obligations were up $310.9 million from March 31, 2015 primarily due to new FHLB borrowings of $305.0 million since March 31, 2015.

At March 31, 2016, December 31, 2015 and March 31, 2015, long-term obligations included $132.5 million in junior subordinated debentures representing obligations to FCB/NC Capital Trust III, FCB/SC Capital Trust II, and SCB Capital Trust I, special purpose entities and grantor trusts for $128.5 million of trust preferred securities. FCB/NC Capital Trust III, FCB/SC Capital Trust II, and SCB Capital Trust I's (the Trusts) trust preferred securities mature in 2036, 2034, and 2034, respectively, and may be redeemed at par in whole or in part at any time. BancShares has guaranteed all obligations of the Trusts.

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Shareholders' Equity and Capital Adequacy

BancShares and FCB are required to meet minimum capital requirements imposed by regulatory authorities. Failure to meet certain capital requirements may result in actions by regulatory agencies that could have a material impact on our consolidated financial statements.

In accordance with accounting principles generally accepted in the United States of America (GAAP), unrealized gains and losses on certain assets and liabilities, net of deferred taxes, are included in accumulated other comprehensive income (AOCI)within shareholders' equity. These amounts are excluded from shareholders' equity in the calculation of our capital ratios. In the aggregate, these items represented a net reduction in shareholders' equity of $23.8 million at March 31, 2016, compared to a net reduction of $64.4 million at December 31, 2015 and a net reduction of $35.4 million at March 31, 2015. The $40.6 million change in AOCI from December 31, 2015 was primarily driven by an increase in unrealized gains on investment securities available for sale. The $11.6 million change in AOCI from March 31, 2015 was driven by the increase in unrealized gains on investment securities available for sale and the change in the funded status of the defined benefit plans.

Table 14

Analysis of Capital Adequacy

	March 31, 2016		December 31, 2015		March 31, 2015		Regulatory minimum		Well-capitalized requirement
BancShares
Risk-based capital ratios
Tier 1 risk-based capital	12.58	%	12.65	%	12.92	%	6.00	%	8.00	%
Common equity Tier 1	12.58		12.51		12.77		4.50		6.50
Total risk-based capital	14.09		14.03		14.42		8.00		10.00
Tier 1 leverage ratio	9.00		8.96		8.90		4.00		5.00
Bank
Risk-based capital ratios
Tier 1 risk-based capital	12.35	%	12.64	%	12.88	%	6.00	%	8.00	%
Common equity Tier 1	12.35		12.64		12.88		4.50		6.50
Total risk-based capital	13.32		13.61		13.92		8.00		10.00
Tier 1 leverage ratio	8.84		8.95		8.89		4.00		5.00

Bank regulatory agencies approved regulatory capital guidelines (Basel III) aimed at strengthening existing capital requirements for banking organizations. The final rules set new minimum requirements for both the quantity and quality of capital held by BancShares and included a new common equity Tier 1 capital to risk-weighted assets ratio. A new capital conservation buffer was also established and was phased in beginning January 1, 2016 at 0.625 percent of risk-weighted assets and will increase each subsequent year by an additional 0.625 percent until reaching its final level of 2.50 percent on January 1, 2019. BancShares and FCB had capital conservation buffers above minimum risk-based capital requirements of 6.09 percent and 5.32 percent, respectively, at March 31, 2016. The buffers exceed the 0.625 percent requirement and, therefore, result in no limit on distributions.

As of March 31, 2016, BancShares continues to exceed minimum capital standards and FCB remains well-capitalized under the new rules. BancShares remained well capitalized with a leverage capital ratio of 9.00 percent, Tier 1 risk-based capital ratio of 12.58 percent, common equity Tier 1 ratio of 12.58 and total risk-based capital ratio of 14.10 percent under Basel III guidelines at March 31, 2016.

BancShares had no trust preferred capital securities included in Tier 1 capital at March 31, 2016, compared to $32.1 million at December 31, 2015. The decrease during 2016 was due to the implementation of Basel III. Effective January 1, 2015, 75 percent of our trust preferred capital securities were excluded from Tier 1 capital and the remaining 25 percent were phased out on January 1, 2016 under Basel III requirements. Trust preferred capital securities continue to be a component of total risk-based capital.

RISK MANAGEMENT

Risk is inherent in any business and, as is the case with other management functions, senior management has primary responsibility for day-to-day management of the risks we face.  The Board of Directors strive to ensure that risk management is part of the business culture and that policies and procedures for assessing, monitoring, and limiting risk are part of the daily decision-making process. The Board of Director’s role in risk oversight is an integral part of our overall enterprise risk

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management framework.  The Board of Directors administers its risk oversight function primarily through committees which may be established as separate or joint committees of the board, including a joint Risk Committee that oversees enterprise-wide risk management.

The Risk Committee structure is designed to allow for information flow and escalation of risk related issues. Among the duties and responsibilities as may be assigned from time to time by the Board of Directors, the Risk Committee is directed to monitor and advise the board regarding risk exposures, including credit, market, liquidity, operational, compliance, legal, strategic and reputational risks; review, approve and monitor adherence to risk appetite and supporting risk tolerance levels; evaluate, monitor and oversee the adequacy and effectiveness of the risk management framework; and review reports of examination by and communications from regulatory agencies, and the results of internal and third party testing, analyses and reviews, related to risks, risk management, and any other matters within the scope of the Risk Committee’s oversight responsibilities, and monitor and review management’s response to any noted issues. In addition, the Risk Committee may coordinate with the Audit Committee for the review of financial statements and related risks and other areas of joint responsibility.

The Dodd-Frank Act mandated that stress tests be developed and performed to ensure that financial institutions have sufficient capital to absorb losses and support operations during multiple economic and bank scenarios. Bank holding companies with total consolidated assets between $10 billion and $50 billion, including BancShares, will undergo annual company-run stress tests. As directed by the Federal Reserve, summaries of BancShares’ results in the severely adverse stress tests are available to the public. In combination with other risk management and monitoring practices, the results of stress testing activities will be considered as part of our risk management program.

Credit risk management. Credit risk is the risk of not collecting payments pursuant to the contractual terms of loans, leases and investment securities. Loans and leases, other than acquired loans, were underwritten in accordance with our credit policies and procedures and are subject to periodic ongoing reviews. Acquired loans were recorded at fair value as of the acquisition date and are subject to periodic reviews to identify any further credit deterioration. Our independent credit review function conducts risk reviews and analyses of both acquired and originated loans to ensure compliance with credit policies and to monitor asset quality trends. The risk reviews include portfolio analysis by geographic location, industry, collateral type and product. We strive to identify potential problem loans as early as possible, to record charge-offs or write-downs as appropriate and to maintain an adequate ALLL that accounts for losses inherent in the loan and lease portfolio.

Interest rate risk management. Interest rate risk (IRR) results principally from assets and liabilities maturing or repricing at different points in time, from assets and liabilities repricing at the same point in time but in different amounts and from short-term and long-term interest rates changing in different magnitudes.

We assess our short term IRR by forecasting net interest income over 24 months under various interest rate scenarios and comparing those results to forecast net interest income assuming stable rates. Rate shock scenarios represent an instantaneous and parallel shift in rates, up or down, from a base yield curve. Due to the current low level of interest rates and competitive pressures that constrain our ability to further reduce deposit interest rates, it is unlikely that the rates on most interest-bearing liabilities can decline materially from current levels. Our shock projections incorporate assumptions of likely customer migration of low rate deposit instruments to intermediate term fixed rate instruments, such as certificates of deposit, as rates rise. Various other IRR scenarios are modeled to supplement shock scenarios. This may include interest rate ramps, changes in the shape of the yield curve and changes in the relationships of FCB rates to market rates.

Table 15

Net Interest Income Sensitivity Simulation Analysis

This table provides the impact on net interest income over 24 months resulting from various instantaneous interest rate shock scenarios as of March 31, 2016 and December 31, 2015.

	Estimated increase (decrease) in net interest income
Change in interest rate (basis point)	March 31, 2016		December 31, 2015
+100	4.20	%	2.78	%
+200	5.21		2.80
+300	2.01		(0.75	)

The change in net interest income sensitivity metrics at March 31, 2016 compared to December 31, 2015 was primarily due to a decrease in intermediate and long-term treasury and swap rates which resulted in a change to the expected deposit mix.

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Table 16

Economic Value of Equity Modeling Analysis

Long-term interest rate risk exposure is measured using the economic value of equity (EVE) sensitivity analysis to study the impact of long-term cash flows on earnings and capital. EVE represents the difference between the sum of the present value of all asset cash flows and the sum of the present value of the liability cash flows. EVE sensitivity analysis involves discounting cash flows of balance sheet items under different interest rate scenarios. Cash flows will vary by interest rate scenario, resulting in variations in EVE. The base-case measurement and its sensitivity to shifts in the yield curve allow management to measure longer-term repricing and option risk in the balance sheet. This table presents the EVE profile as of March 31, 2016 and December 31, 2015.

	Estimated increase (decrease) in EVE
Change in interest rate (basis point)	March 31, 2016		December 31, 2015
+100	5.39	%	3.18	%
+200	5.25		1.53
+300	0.16		(3.92	)

The improvement in the economic value of equity metrics at March 31, 2016 compared to December 31, 2015 was primarily due a decrease in intermediate and long-term treasury and swap rates which had a favorable impact on deposits and EVE risk.

We do not typically utilize interest rate swaps, floors, collars or other derivative financial instruments to attempt to hedge our overall balance sheet rate sensitivity and interest rate risk. However, we have entered into an interest rate swap to synthetically convert the variable rate on $93.5 million of junior subordinated debentures to a fixed rate of 5.50 percent through June 2016. The interest rate swap qualifies as a hedge under GAAP. See Note M to the Consolidated Financial Statements, "Derivatives," for additional discussion of this interest rate swap.

Liquidity risk management. Liquidity risk is the risk that an institution will be unable to generate or obtain sufficient cash or its equivalents on a cost-effective basis to meet commitments as they fall due. The most common sources of liquidity risk arise from mismatches in the timing and value of on-balance sheet and off-balance sheet cash inflows and outflows. In general, on-balance sheet mismatches generate liquidity risk when the effective maturity of assets exceeds the effective maturity of liabilities. A commonly cited example of a balance sheet liquidity mismatch is when long-term loans (assets) are funded with short-term deposits (liabilities). Other forms of liquidity risk include market constraints on the ability to convert assets into cash at expected levels, an inability to access funding sources at sufficient levels at a reasonable cost, and changes in economic conditions or exposure to credit, market, operation, legal and reputation risks that can affect an institution’s liquidity risk profile.

We utilize various limit-based measures to monitor, measure and control liquidity risk across three different types of liquidity:

• Tactical liquidity measures the risk of a negative cash flow position whereby cash outflows exceed cash inflows over a short-term horizon out to nine weeks;

• Structural liquidity measures the amount by which illiquid assets are supported by long-term funding; and

• Contingent liquidity utilizes cash flow stress testing across three crisis scenarios to determine the adequacy of our liquidity.

We aim to maintain a diverse mix of liquidity sources to support the liquidity management function, while aiming to avoid funding concentrations by diversifying our external funding with respect to maturities, counterparties and nature. Our primary sources of liquidity are our retail deposit book due to the generally stable balances and low cost it offers, cash in excess of our reserve requirement at the Federal Reserve Bank and various other corresponding bank accounts and unencumbered securities, all of which were $4.24 billion at March 31, 2016 compared to $3.96 billion at December 31, 2015. Another source of available funds is advances from the FHLB of Atlanta. Outstanding FHLB advances were $595.2 million as of March 31, 2016, and we had sufficient collateral pledged to secure $5.50 billion of additional borrowings. We also maintain Federal Funds lines and other borrowing facilities which had $790.0 million of available capacity at March 31, 2016.

CRITICAL ACCOUNTING POLICIES

There have been no significant changes in our Critical Accounting Policies as described in our 2015 Annual Report on Form 10-K.

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FORWARD-LOOKING STATEMENTS

Statements in this Report and exhibits relating to plans, strategies, economic performance and trends, projections of results of specific activities or investments, expectations or beliefs about future events or results and other statements that are not descriptions of historical facts may be forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934.

Forward-looking information is inherently subject to risks and uncertainties, and actual results could differ materially from those currently anticipated due to a number of factors which include, but are not limited to, factors discussed in our Annual Report on Form 10-K and in other documents filed by us from time to time with the Securities and Exchange Commission.

Forward-looking statements may be identified by terms such as “may,” “will,” “should,” “could,” “expects,” “plans,” “intends,” “anticipates,” “believes,” “estimates,” “predicts,” “forecasts,” “projects,” “potential” or “continue,” or similar terms or the negative of these terms, or other statements concerning opinions or judgments of BancShares’ management about future events.

Factors that could influence the accuracy of those forward-looking statements include, but are not limited to, the financial success or changing strategies of our customers, customer acceptance of our services, products and fee structure, the competitive nature of the financial services industry, our ability to compete effectively against other financial institutions in our banking markets, actions of government regulators, the level of market interest rates and our ability to manage our interest rate risk, changes in general economic conditions that affect our loan and lease portfolio, the abilities of our borrowers to repay their loans and leases, the values of real estate and other collateral, the impact of the FDIC-assisted transactions and other developments or changes in our business that we do not expect.

Actual results may differ materially from those expressed in or implied by any forward-looking statements. Except to the extent required by applicable law or regulation, BancShares undertakes no obligation to revise or update publicly any forward-looking statements for any reason.

Item 3. Quantitative and Qualitative Disclosures about Market Risk

Market risk is the potential economic loss resulting from changes in market prices and interest rates. This risk can either result in diminished current fair values of financial instruments or reduced net interest income in future periods. As of March 31, 2016, BancShares’ market risk profile has not changed significantly from December 31, 2015, as discussed in the Form 10-K. Changes in fair value that result from movement in market rates cannot be predicted with any degree of certainty. Therefore, the impact that future changes in market rates will have on the fair values of financial instruments is uncertain.

Item 4. Controls and Procedures

BancShares' management, with the participation of its Chief Executive Officer and Chief Financial Officer, has evaluated the effectiveness of the design and operation of BancShares' disclosure controls and procedures as of the end of the period covered by this Quarterly Report, in accordance with Rule 13a-15 of the Securities Exchange Act of 1934 (Exchange Act). Based upon that evaluation, as of the end of the period covered by this report, the Chief Executive Officer and the Chief Financial Officer concluded that BancShares' disclosure controls and procedures were effective to provide reasonable assurance that it is able to record, process, summarize and report in a timely manner the information required to be disclosed in the reports it files under the Exchange Act.

No change in BancShares' internal control over financial reporting occurred during the first quarter of 2016 that had materially affected, or is reasonably likely to materially affect, BancShares' internal control over financial reporting.

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PART II

Item 1. Legal Proceedings

BancShares and various subsidiaries have been named as defendants in various legal actions arising from our normal business activities in which damages in various amounts are claimed. Although the amount of any ultimate liability with respect to those other matters cannot be determined, in the opinion of management, any such liability will not have a material effect on BancShares’ consolidated financial statements.

Additional information relating to legal proceedings is set forth in Note L of BancShares' Notes to Unaudited Consolidated Financial Statements.

Item 1A. Risk Factors

There have been no material changes from the risk factors previously disclosed in our Form 10-K for the year ended December 31, 2015.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

On October 27, 2015, the Board of Directors approved a stock trading plan that provides for the purchase of up to 200,000 shares of Registrant's Class A common stock. The shares may be purchased from time to time from November 1, 2015 through October 31, 2016. The board's action approving share purchases does not obligate BancShares to acquire any particular amount of shares and purchases may be suspended or discontinued at any time. Any shares of stock that are purchased will be canceled.

Item 6. Exhibits

31.1	Certification of Chief Executive Officer (filed herewith)
31.2	Certification of Chief Financial Officer (filed herewith)
32.1	Certification of Chief Executive Officer (filed herewith)
32.2	Certification of Chief Financial Officer (filed herewith)
101.INS	XBRL Instance Document
101.SCH	XBRL Taxonomy Extension Schema
101.CAL	XBRL Taxonomy Extension Calculation Linkbase
101.DEF	XBRL Taxonomy Extension Definition Linkbase
101.LAB	XBRL Taxonomy Extension Label Linkbase
101.PRE	XBRL Taxonomy Extension Presentation Linkbase

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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.

Date:	May 5, 2016		FIRST CITIZENS BANCSHARES, INC.
			(Registrant)
		By:	/s/ CRAIG L. NIX
			Craig L. Nix
			Chief Financial Officer

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EX-31.1

Exhibit 31.1

CERTIFICATION

I, Frank B. Holding, Jr., certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of First Citizens BancShares, Inc.;

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.

5. The registrant’s other certifying officer(s) 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: May 5, 2016

/s/ Frank B. Holding, Jr.

Frank B. Holding, Jr.

Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATION

I, Craig L. Nix, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of First Citizens BancShares, Inc.;

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.

5. The registrant’s other certifying officer(s) 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: May 5, 2016

/s/ Craig L. Nix

Craig L. Nix

Chief Financial Officer

EX-32.1

Exhibit 32.1

CERTIFICATION

The undersigned hereby certifies that (i) the Form 10-Q filed by First Citizens BancShares, Inc. (the “Issuer”) for the period ended March 31, 2016, fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, and (ii) the information contained in that report fairly presents, in all material respects, the financial condition and results of operations of the Issuer on the dates and for the periods presented therein.

May 5, 2016

/s/ Frank B. Holding, Jr.

Frank B. Holding, Jr.

Chief Executive Officer

EX-32.2

Exhibit 32.2

CERTIFICATION

The undersigned hereby certifies that (i) the Form 10-Q filed by First Citizens BancShares, Inc. (the “Issuer”) for the period ended March 31, 2016, fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, and (ii) the information contained in that report fairly presents, in all material respects, the financial condition and results of operations of the Issuer on the dates and for the periods presented therein.

May 5, 2016

/s/ Craig L. Nix

Craig L. Nix

Chief Financial Officer

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Document And Entity Information - shares	3 Months Ended
	Mar. 31, 2016	May. 04, 2016
Entity Registrant Name	FIRST CITIZENS BANCSHARES INC /DE/
Entity Central Index Key	0000798941
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Mar. 31, 2016
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	Q1
Amendment Flag	false
Class A Common Stock
Entity Common Stock, Shares Outstanding		11,005,220
Class B Common Stock
Entity Common Stock, Shares Outstanding		1,005,185

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Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Assets
Cash and due from banks	$ 457,758	$ 534,086
Overnight investments	2,871,105	2,063,132
Investment securities available for sale	6,687,289	6,861,293
Investment securities held to maturity	194	255
Loans held for sale	66,988	59,766
Loans and Leases Receivable, Gross	20,417,689	20,239,990
Less allowance for loan and lease losses	(206,783)	(206,216)
Net loans and leases	20,210,906	20,033,774
Premises and equipment	1,127,371	1,135,829
Other Real Estate	65,068	65,559
Income earned not collected	73,518	70,036
FDIC Indemnification Asset	7,474	4,054
Goodwill	139,773	139,773
Other intangible assets	84,743	90,986
Other assets	403,470	417,391
Total assets	32,195,657	31,475,934
Liabilities
Noninterest-bearing	9,661,441	9,274,470
Interest-bearing	17,703,804	17,656,285
Total deposits	27,365,245	26,930,755
Short-term borrowings	689,236	594,733
Long-term obligations	779,087	704,155
FDIC loss share payable	128,243	126,453
Other liabilities	272,652	247,729
Total liabilities	29,234,463	28,603,825
Shareholders' Equity
Surplus	658,918	658,918
Retained earnings	2,314,090	2,265,621
Accumulated other comprehensive loss	(23,824)	(64,440)
Total shareholders' equity	2,961,194	2,872,109
Total liabilities and shareholders' equity	32,195,657	31,475,934
Class A Common Stock
Shareholders' Equity
Common stock	11,005	11,005
Class B Common Stock
Shareholders' Equity
Common stock	$ 1,005	$ 1,005

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Consolidated Balance Sheets (Parenthetical) - $ / shares	Mar. 31, 2016	Dec. 31, 2015
Class A Common Stock
Common stock, par value (in dollars per share)	$ 1	$ 1
Common stock, shared authorized	16,000,000	16,000,000
Common stock, shares issued	11,005,220	11,005,220
Common stock, shares outstanding	11,005,220	11,005,220
Class B Common Stock
Common stock, par value (in dollars per share)	$ 1	$ 1
Common stock, shared authorized	2,000,000	2,000,000
Common stock, shares issued	1,005,185	1,005,185
Common stock, shares outstanding	1,005,185	1,005,185

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Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Interest income
Loans and leases	$ 216,404	$ 210,862
Investment securities:
Total investment securities interest and dividend income	23,042	19,310
Overnight investments	3,666	1,338
Total interest income	243,112	231,510
Interest expense
Deposits	4,659	5,629
Short-term borrowings	434	1,934
Long-term obligations	5,299	3,782
Total interest expense	10,392	11,345
Net interest income	232,720	220,165
Provision (credit) for loan and lease losses	4,843	5,792
Net interest income after provision for loan and lease losses	227,877	214,373
Noninterest income
Gain on acquisition	1,704	42,930
Cardholder services	19,358	18,401
Merchant services	21,977	18,880
Service charges on deposit accounts	21,850	22,058
Wealth management services	19,634	20,880
Securities gains (losses)	4,628	5,126
Other service charges and fees	6,989	5,455
Mortgage income	1,311	4,549
Insurance commissions	3,178	3,297
ATM income	1,765	1,664
Adjustments for FDIC receivable for loss share agreements	(2,533)	(1,047)
Other	5,421	8,560
Total noninterest income	105,282	150,753
Noninterest expense
Salaries and wages	103,899	105,471
Employee benefits	27,350	31,218
Occupancy expense	25,012	25,620
Equipment expense	22,345	23,541
FDIC insurance expense	4,789	4,271
Foreclosure-related expenses	1,731	2,557
Merger-related expenses	38	2,997
Other	66,507	62,491
Total noninterest expense	251,671	258,166
Income before income taxes	81,488	106,960
Income taxes	29,416	39,802
Net income	$ 52,072	$ 67,158
Average shares outstanding (in shares)	12,010,405	12,010,405
Net income per share	$ 4.34	$ 5.59

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Consolidated Statement of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Statement of Comprehensive Income [Abstract]
Net income	$ 52,072	$ 67,158
Unrealized gains and losses on securities:
Change in unrealized securities gains (losses) arising during period	68,033	30,415
Tax effect	(26,016)	(11,813)
Reclassification adjustment for net gains realized and included in income before income taxes	4,628	5,126
Tax effect	1,770	1,977
Total change in unrealized gains and losses on securities, net of tax	39,159	15,453
Change in fair value of cash flow hedges:
Change in unrecognized loss on cash flow hedges	700	576
Tax effect	(263)	(222)
Total change in unrecognized loss on cash flow hedges, net of tax	437	354
Change in pension obligation:
Amortization of actuarial losses and prior service cost	1,652	2,886
Tax effect	(632)	(1,123)
Total change in pension obligation, net of tax	1,020	1,763
Net current period other comprehensive income	40,616	17,570
Total comprehensive income	$ 92,688	$ 84,728

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Consolidated Statements of Changes In Shareholders' Equity - USD ($) $ in Thousands	Total	Common Stock Class A Common Stock	Common Stock Class B Common Stock	Surplus	Retained Earnings	Accumulated Other Comprehensive Loss
Beginning balance at Dec. 31, 2014	$ 2,687,594	$ 11,005	$ 1,005	$ 658,918	$ 2,069,647	$ (52,981)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	67,158	0	0	0	67,158	0
Net current period other comprehensive income	17,570	0	0	0	0	17,570
Cash dividends	(3,603)	0	0	0	(3,603)	0
Ending balance at Mar. 31, 2015	2,768,719	11,005	1,005	658,918	2,133,202	(35,411)
Beginning balance at Dec. 31, 2015	2,872,109	11,005	1,005	658,918	2,265,621	(64,440)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	52,072	0	0	0		0
Net current period other comprehensive income	40,616	0	0	0	0	40,616
Cash dividends	(3,603)	0	0	0	(3,603)	0
Ending balance at Mar. 31, 2016	$ 2,961,194	$ 11,005	$ 1,005	$ 658,918	$ 2,314,090	$ (23,824)

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Consolidated Statements of Changes In Shareholders' Equity (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Statement of Stockholders' Equity [Abstract]
Cash dividends (in dollars per share)	$ 0.30	$ 0.30
Class A Common Stock
Statement of Stockholders' Equity [Abstract]
Repurchase of common stock (in shares)	0	0
Class B Common Stock
Statement of Stockholders' Equity [Abstract]
Repurchase of common stock (in shares)	0	0

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Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
OPERATING ACTIVITIES
Net income	$ 52,072	$ 67,158
Adjustments to reconcile net income to cash provided by operating activities:
Provision (credit) for loan and lease losses	4,843	5,792
Deferred tax expense (benefit)	(8,806)	(10,203)
Net change in current taxes	35,678	15,437
Depreciation	22,053	21,965
Increase (decrease) in accrued interest payable	324	176
Net (increase) decrease in income earned not collected	(3,482)	(5,988)
Gain on acquisition	(1,704)	(42,930)
Securities (gains) losses	(4,628)	(5,126)
Origination of loans held for sale	(144,895)	(126,547)
Proceeds from sale of loans held for sale	140,160	127,203
Gain on sale of loans	(2,487)	(3,468)
Net writedowns/losses on other real estate	2,599	1,978
Net amortization of premiums and discounts	(12,201)	(17,150)
Amortization of intangible assets	5,586	5,206
FDIC receivable for loss share agreements	4,076	8,092
FDIC payable for loss share agreements	1,790	2,110
Net change in other assets	(19,678)	15,223
Net change in other liabilities	3,857	3,804
Net cash provided by operating activities	75,157	62,732
INVESTING ACTIVITIES
Net change in loans outstanding	(131,923)	(168,341)
Purchases of investment securities available for sale	(1,139,933)	(626,268)
Proceeds from maturities of investment securities held to maturity	61	77
Proceeds from maturities of investment securities available for sale	396,211	330,500
Proceeds from sales of investment securities available for sale	987,260	481,708
Net change in overnight investments	(805,699)	(734,004)
Cash (paid to) received from the FDIC for loss share agreements	(9,871)	(5,762)
Proceeds from sale of other real estate	8,202	22,794
Additions to premises and equipment	(13,595)	(13,177)
Business acquisition, net cash acquired	14,745	123,137
Net cash (used) provided by investing activities	(694,542)	(589,336)
FINANCING ACTIVITIES
Net change in time deposits	(84,802)	(189,906)
Net change in demand and other interest-bearing deposits	460,086	545,807
Net change in short-term borrowings	92,841	(50,835)
Repayment of long-term obligations	(68)	(3,140)
Origination of long-term obligations	75,000	120,000
Cash dividends paid	0	(3,603)
Net cash provided (used) by financing activities	543,057	418,323
Change in cash and due from banks	(76,328)	(108,281)
Cash and due from banks at beginning of period	534,086	604,182
Cash and due from banks at end of period	457,758	495,901
SUPPLEMENTAL DISCLOSURE OF NONCASH INVESTING AND FINANCING ACTIVITIES:
Transfers of loans to other real estate	9,980	21,300
Dividends Declared but not Paid	$ 3,603	$ 3,603

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Accounting Policies and Basis of Presentation

3 Months Ended

Mar. 31, 2016

Accounting Policies [Abstract]

Accounting Policies and Basis of Presentation

ACCOUNTING POLICIES AND BASIS OF PRESENTATION

First Citizens BancShares, Inc. (BancShares) is a financial holding company organized under the laws of Delaware and conducts operations through its banking subsidiary, First-Citizens Bank & Trust Company (FCB), which is headquartered in Raleigh, North Carolina.

General

These consolidated financial statements and notes thereto are presented in accordance with instructions for Form 10-Q and Article 10 of Regulation S-X and, therefore, do not include all information and notes necessary for a complete presentation of financial position, results of operations and cash flow activity required in accordance with accounting principles generally accepted in the United States of America (GAAP). In the opinion of management, all normal recurring adjustments necessary for a fair presentation of the consolidated financial position and consolidated results of operations have been made. The unaudited interim consolidated financial statements included in this Form 10-Q should be read in conjunction with the consolidated financial statements and footnotes included in BancShares' Annual Report on Form 10-K for the year ended December 31, 2015.

Reclassifications

In certain instances, amounts reported in prior years' consolidated financial statements have been reclassified to conform to the current financial statement presentation. Such reclassifications had no effect on previously reported shareholders' equity or net income.

Use of Estimates in the Preparation of Financial Statements

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenues and expenses during the reporting periods. Actual results could differ from those estimates, and different assumptions in the application of these policies could result in material changes in BancShares' consolidated financial position, the consolidated results of operations or related disclosures. Material estimates that are particularly susceptible to significant change include:

• Allowance for loan and lease losses

• Fair value of financial instruments, including acquired assets and assumed liabilities

• Pension plan assumptions

• Cash flow estimates on purchased credit-impaired loans

• Receivable from and payable to the FDIC for loss share agreements

• Income tax assets, liabilities and expense

Recently Adopted Accounting Pronouncements

Financial Accounting Standards Board (FASB) Accounting Standards Update (ASU) 2015-16, Business Combinations (Topic 805): Simplifying the Accounting for Measurement-Period Adjustments

This ASU eliminates the requirement to retrospectively account for adjustments made to provisional amounts recognized in a business combination and requires that an acquirer recognize adjustments to provisional amounts that are identified during the measurement period in the reporting period in which the adjustment amounts are determined. The effect on earnings of changes in depreciation, amortization, or other income effects, if any, as a result of the change to the provisional amounts must be calculated as if the accounting had been completed at the acquisition date.

The amendments in this ASU are effective for public business entities for fiscal years beginning after December 15, 2015, including interim periods within those fiscal years. The amendments in this ASU should be applied prospectively to adjustments to provisional amounts that occur after the effective date of this ASU with earlier application permitted for financial statements that have not been issued. We adopted the guidance effective in the first quarter of 2016. The initial adoption did not have an impact on our consolidated financial position or consolidated results of operations.

FASB ASU 2015-03, Interest–Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs

This ASU simplifies the presentation of debt issuance costs by requiring that debt issuance costs be presented in the balance sheet as a direct deduction from the carrying amount of debt liability, consistent with debt discounts or premiums. The recognition and measurement guidance for debt issuance costs are not affected by the amendments in this update.

This ASU is effective for fiscal years beginning after December 15, 2015 for public business entities, including interim periods within those fiscal years, and is to be applied retrospectively. We adopted the guidance effective in the first quarter of 2016. The initial adoption did not have an impact on our consolidated financial position or consolidated results of operations.

FASB ASU 2015-02, Consolidation (Topic 810): Amendments to the Consolidation Analysis

This ASU improves targeted areas of consolidation guidance for reporting organizations that are required to evaluate whether they should consolidate certain legal entities. In addition to reducing the number of consolidation models from four to two, the new standard places more emphasis on risk of loss when determining a controlling financial interest, reducing the frequency of the application of related-party guidance when determining a controlling financial interest in a variable interest entity (VIE), and changing consolidation conclusions for public and private companies in several industries that typically make use of limited partnerships or VIEs.

The amendments in this ASU are effective for fiscal years beginning after December 15, 2015 for public business entities, including interim periods within those fiscal years. We adopted the guidance effective in the first quarter of 2016. The initial adoption did not have an impact on our consolidated financial position or consolidated results of operations.

Recently Issued Accounting Pronouncements

FASB ASU 2016-07, Investments—Equity Method and Joint Ventures (Topic 323): Simplifying the Transition to the Equity Method of Accounting

This ASU eliminates the requirement that when an investment qualifies for use of the equity method as a result of an increase in the level of ownership interest or degree of influence, an investor must adjust the investment, results of operations, and retained earnings retroactively on a step-by-step basis as if the equity method had been in effect during all previous periods that the investment had been held. The ASU requires that the equity method investor add the cost of acquiring the additional interest in the investee to the current basis of the investor's previously held interest and adopt the equity method of accounting as of the date the investment becomes qualified for equity method accounting. Therefore, upon qualifying for the equity method of accounting, no retroactive adjustment of the investment is required. Further, the ASU requires that an entity that has an available-for-sale equity security that becomes qualified for the equity method of accounting recognizes through earnings, the unrealized gain or loss in accumulated other comprehensive income at the date the investment becomes qualified for use of the equity method.

The amendments in this ASU are effective for all entities for fiscal years beginning after December 15, 2016, including interim periods within those fiscal years. Early adoption is permitted. We are currently evaluating the impact of the new standard and will adopt the guidance during the first quarter of 2017.

FASB ASU 2016-06, Derivatives and Hedging (Topic 815): Contingent Put and Call Options in Debt Instruments

This ASU clarifies what steps are required when assessing whether the economic characteristics and risks of call (put) options are clearly and closely related to the economic characteristics and risks of their debt hosts, which is one of the criteria for bifurcating an embedded derivative. When a call (put) option is contingently exercisable, an entity does not have to assess whether the event that triggers the ability to exercise a call (put) option is related to interest rates or credit risks.

The amendments in the ASU are effective for public business entities for fiscal years beginning after December 15, 2016, including interim periods within those fiscal years. Early adoption is permitted. We will adopt the guidance during the first quarter of 2017. BancShares does not anticipate any effect on our consolidated financial position or consolidated results of options as a result of adoption.

FASB ASU 2016-02, Leases (Topic 842)

This ASU increases transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet and disclosing key information about leasing arrangements. The key difference between existing standards and this ASU is the requirement for lessees to recognize on their balance sheet all lease contracts with lease terms greater than 12 months, including operating leases. Both a right-of-use asset, representing the right to use the leased asset, and a lease liability, representing the contractual obligation, are required to be recognized on the balance sheet of the lessee at lease commencement. Further, this ASU requires lessees to classify leases as either operating or finance leases, which are substantially similar to the current operating and capital leases classifications. The distinction between these two classifications under the new standard does not relate to balance sheet treatment, but relates to treatment in the statements of income and cash flows. Lessor guidance remains largely unchanged with the exception of how a lessor determines the appropriate lease classification for each lease to better align the lessor guidance with revised lessee classification guidance.

The amendments in this ASU are effective for public business entities for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. Early adoption is permitted. We are currently evaluating the impact of the new standard and we will adopt during the first quarter of 2019.

FASB ASU 2016-01, Financial Instruments—Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities

This ASU addresses certain aspects of recognition, measurement, presentation and disclosure. The amendments in this ASU (1) require equity investments to be measured at fair value with changes in fair value recognized in net income; (2) simplify the impairment assessment of equity investments without readily determinable fair value; (3) require public business entities to use exit prices, rather than entry prices, when measuring fair value of financial instruments for disclosure purposes; (4) require separate presentation of financial assets and financial liabilities by measurement category and form of financial assets on the balance sheet or the accompanying notes to the financial statements; (5) eliminate the requirement to disclose the method(s) and significant assumptions used to estimate the fair value for financial instruments measured at amortized cost on the balance sheet; (6) require separate presentation in other comprehensive income of the portion of the total change in the fair value of a liability resulting from a change in the instrument-specific credit risk when the organization has elected to measure the liability at fair value in accordance with the fair value option for financial instruments; and (7) state that a valuation allowance on deferred tax assets related to available-for-sale securities should be evaluated in combination with other deferred tax assets.

The amendments in this ASU are effective for public business entities for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. The ASU only permits early adoption of the instrument-specific credit risk provision. We are currently evaluating the impact of the new standard and we will adopt during the first quarter of 2018.

FASB ASU 2014-09, Revenue from Contracts with Customers (Topic 606)

In May 2014, the FASB issued a standard on the recognition of revenue from contracts with customers with the core principle being for companies to recognize revenue to depict the transfer of goods or services to customers in amounts that reflect the consideration to which the company expects to be entitled in exchange for those goods or services. The new standard also results in enhanced disclosures about revenue, provides guidance for transactions that were not previously addressed comprehensively and improves guidance for multiple-element arrangements. In March 2016, the FASB issued ASU 2016-08, Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations, to improve the operability and understandability of the implementation guidance on principal versus agent considerations.

Per ASU 2015-14, Deferral of the Effective Date, this guidance was deferred and is effective for fiscal periods beginning after December 15, 2017, including interim reporting periods within that reporting period. Early adoption is permitted for fiscal periods beginning after December 15, 2016. We are currently evaluating the impact of the new standard and we will adopt during the first quarter of 2018 using one of two retrospective application methods.

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Business Combinations

3 Months Ended

Mar. 31, 2016

Business Combinations [Abstract]

Business Combinations

NOTE B - BUSINESS COMBINATIONS

North Milwaukee State Bank

On March 11, 2016, FCB entered into an agreement with the Federal Deposit Insurance Corporation (FDIC), as Receiver, to purchase certain assets and assume certain liabilities of North Milwaukee State Bank (NMSB) of Milwaukee, Wisconsin. The acquisition provided FCB with value enhancement.

The NMSB transaction was accounted for under the acquisition method of accounting and, accordingly, assets acquired and liabilities assumed were recorded at their estimated fair values on the acquisition date. Fair values are preliminary and subject to refinement for up to one year after the closing date of the acquisition as additional information regarding closing date fair values becomes available.

The fair value of the assets acquired was $52.4 million, including $35.4 million in loans and $240 thousand of identifiable intangible assets. Liabilities assumed were $60.9 million of which $59.2 million were deposits. As a result of the transaction, FCB recorded a gain on the acquisition of $1.7 million which is included in noninterest income in the Consolidated Statements of Income.

The following table provides the identifiable assets acquired and liabilities assumed at their estimated fair values as of the acquisition date.

(Dollars in thousands)	As recorded by FCB
Assets
Cash and cash equivalents	$	4,545
Overnight investments	2,274
Investment securities	9,425
Loans	35,416
Other real estate owned	330
Intangible assets	240
Other assets	216
Total assets acquired	52,446
Liabilities
Deposits	59,206
Short-term borrowings	1,662
Other liabilities	74
Total liabilities assumed	60,942
Fair value of net liabilities assumed	(8,496		)
Cash received from FDIC	10,200
Gain on acquisition of NMSB	$	1,704

Merger-related expenses of $38 thousand were recorded in the Consolidated Statements of Income for the three months ended March 31, 2016. Loan-related interest income generated from NMSB was approximately $123 thousand since the acquisition date.

All loans resulting from the NMSB transaction were recorded at the acquisition date with a discount attributable, at least in part, to credit quality, and are therefore accounted for as purchased credit-impaired (PCI) loans under ASC 310-30.

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Investments

3 Months Ended

Mar. 31, 2016

Investments [Abstract]

Investments

INVESTMENTS

The amortized cost and fair value of investment securities classified as available for sale and held to maturity at March 31, 2016 and December 31, 2015, are as follows:

	March 31, 2016
(Dollars in thousands)	Cost		Gross unrealized gains		Gross unrealized losses		Fair value
Investment securities available for sale
U.S. Treasury	$	1,538,907	$	2,308	$	—	$	1,541,215
Government agency	355,488		669		—		356,157
Mortgage-backed securities	4,693,313		37,375		3,406		4,727,282
Equity securities	50,066		2,314		285		52,095
Other	10,615		—		75		10,540
Total investment securities available for sale	$	6,648,389	$	42,666	$	3,766	$	6,687,289
	December 31, 2015
	Cost		Gross unrealized gains		Gross unrealized losses		Fair value
U.S. Treasury	$	1,675,996	$	4	$	1,118	$	1,674,882
Government agency	498,804		230		374		498,660
Mortgage-backed securities	4,692,447		5,120		29,369		4,668,198
Equity securities	7,935		968		10		8,893
Other	10,615		45		—		10,660
Total investment securities available for sale	$	6,885,797	$	6,367	$	30,871	$	6,861,293
	March 31, 2016
	Cost		Gross unrealized gains		Gross unrealized losses		Fair value
Investment securities held to maturity
Mortgage-backed securities	$	194	$	9	$	—	$	203
	December 31, 2015
	Cost		Gross unrealized gains		Gross unrealized losses		Fair value
Mortgage-backed securities	$	255	$	10	$	—	$	265

Investments in mortgage-backed securities primarily represent securities issued by the Government National Mortgage Association, Federal National Mortgage Association and Federal Home Loan Mortgage Corporation.The following table provides the amortized cost and fair value by contractual maturity. Expected maturities will differ from contractual maturities on certain securities because borrowers and issuers may have the right to call or prepay obligations with or without prepayment penalties. Repayments of mortgage-backed securities are dependent on the repayments of the underlying loan balances. Equity securities do not have a stated maturity date.

	March 31, 2016				December 31, 2015
(Dollars in thousands)	Cost		Fair value		Cost		Fair value
Investment securities available for sale
Non-amortizing securities maturing in:
One year or less	$	1,554,483	$	1,556,414	$	1,255,714	$	1,255,094
One through five years	339,912		340,958		919,086		918,448
Five through 10 years	8,500		8,500		8,500		8,500
Over 10 years	2,115		2,040		2,115		2,160
Mortgage-backed securities	4,693,313		4,727,282		4,692,447		4,668,198
Equity securities	50,066		52,095		7,935		8,893
Total investment securities available for sale	$	6,648,389	$	6,687,289	$	6,885,797	$	6,861,293
Investment securities held to maturity
Mortgage-backed securities held to maturity	$	194	$	203	$	255	$	265

For each period presented, securities gains (losses) included the following:

	Three months ended March 31
(Dollars in thousands)	2016			2015
Gross gains on sales of investment securities available for sale	$	4,933		$	5,135
Gross losses on sales of investment securities available for sale	(305		)	(9		)
Total securities gains	$	4,628		$	5,126

The following table provides information regarding securities with unrealized losses as of March 31, 2016 and December 31, 2015.

	March 31, 2016
	Less than 12 months				12 months or more				Total
(Dollars in thousands)	Fair value		Unrealized losses		Fair value		Unrealized losses		Fair value		Unrealized losses
Investment securities available for sale:
Mortgage-backed securities	$	417,711	$	1,071	$	291,021	$	2,335	$	708,732	$	3,406
Equity securities	13,037		285		—		—		13,037		285
Other	2,040		75		—		—		2,040		75
Total	$	432,788	$	1,431	$	291,021	$	2,335	$	723,809	$	3,766
	December 31, 2015
	Less than 12 months				12 months or more				Total
	Fair value		Unrealized losses		Fair value		Unrealized losses		Fair value		Unrealized losses
Investment securities available for sale:
U.S. Treasury	$	1,539,637	$	1,118	$	—	$	—	$	1,539,637	$	1,118
Government agency	229,436		374		—		—		229,436		374
Mortgage-backed securities	3,570,470		23,275		280,126		6,094		3,850,596		29,369
Equity securities	728		10		—		—		728		10
Total	$	5,340,271	$	24,777	$	280,126	$	6,094	$	5,620,397	$	30,871

Investment securities with an aggregate fair value of $291.0 million and $280.1 million had continuous unrealized losses for more than 12 months with a corresponding aggregate unrealized loss of $2.3 million and $6.1 million as of March 31, 2016 and December 31, 2015, respectively. As of March 31, 2016, all 52 of these investments are government sponsored enterprise-issued mortgage-backed securities. None of the unrealized losses identified as of March 31, 2016 or December 31, 2015 relate to the marketability of the securities or the issuer’s ability to honor redemption obligations. Rather, the unrealized losses relate to changes in interest rates relative to when the investment securities were purchased. For all periods presented, BancShares had the ability and intent to retain these securities for a period of time sufficient to recover all unrealized losses. Therefore, none of the securities were deemed to be other than temporarily impaired.

Investment securities having an aggregate carrying value of $4.94 billion at March 31, 2016 and $4.73 billion at December 31, 2015 were pledged as collateral to secure public funds on deposit and certain short-term borrowings, and for other purposes as required by law.

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Loans and Leases

3 Months Ended

Mar. 31, 2016

Loans and Leases Receivable Disclosure [Abstract]

Loans and Leases

LOANS AND LEASES

BancShares' accounting methods for loans and leases differ depending on whether they are purchased credit-impaired (PCI) or non-PCI. Non-PCI loans and leases include originated commercial, originated noncommercial, purchased non-impaired loans, purchased leases and certain purchased revolving credit. For purchased non-impaired loans to be included as non-PCI, it must be determined that the loans do not have a discount due, at least in part, to credit quality at the time of acquisition. Conversely, loans for which it is probable at acquisition that all required payments will not be collected in accordance with contractual terms are considered PCI loans. PCI loans are evaluated at acquisition and where a discount is required at least in part due to credit quality, the nonrevolving loans are accounted for under the guidance in ASC Topic 310-30, Loans and Debt Securities Acquired with Deteriorated Credit Quality. PCI loans and leases are recorded at fair value at the date of acquisition. No allowance for loan and lease losses is recorded on the acquisition date as the fair value of the acquired assets incorporates assumptions regarding credit risk. An allowance is recorded if there is additional credit deterioration after the acquisition date.

BancShares reports PCI and non-PCI loan portfolios separately, and each portfolio is further divided into commercial and non-commercial based on the type of borrower, purpose, collateral, and/or our underlying credit management processes. Additionally, loans are assigned to loan classes, which further disaggregate loans based upon common risk characteristics.

Commercial –Commercial loans include construction and land development, mortgage, other commercial real estate, commercial and industrial, lease financing and other.

Construction and land development – Construction and land development consists of loans to finance land for development, investment, and use in a commercial business enterprise; multifamily apartments; and other commercial buildings that may be owner-occupied or income generating investments for the owner.

Commercial mortgage – Commercial mortgage consists of loans to purchase or refinance owner-occupied nonresidential and investment properties. Investment properties include office buildings and other facilities that are rented or leased to unrelated parties.

Other commercial real estate – Other commercial real estate consists of loans secured by farmland (including residential farms and other improvements) and multifamily (5 or more) residential properties.

Commercial and industrial – Commercial and industrial consists of loans or lines of credit to finance corporate credit cards, accounts receivable, inventory and other general business purposes.

Lease financing – Lease financing consists solely of lease financing agreements for business equipment, vehicles and other assets.

Other – Other consists of all other commercial loans not classified in one of the preceding classes. These typically include loans to non-profit organizations such as churches, hospitals, educational and charitable organizations.

Noncommercial – Noncommercial consist of residential and revolving mortgage, construction and land development, and consumer loans.

Residential mortgage – Residential real estate consists of loans to purchase, construct or refinance the borrower's primary dwelling, second residence or vacation home.

Revolving mortgage – Revolving mortgage consists of home equity lines of credit that are secured by first or second liens on the borrower's primary residence.

Construction and land development – Construction and land development consists of loans to construct the borrower's primary or secondary residence or vacant land upon which the owner intends to construct a dwelling at a future date.

Consumer – Consumer loans consist of installment loans to finance purchases of vehicles, unsecured home improvements and revolving lines of credit that can be secured or unsecured, including personal credit cards.

Loans and leases outstanding included the following at March 31, 2016 and December 31, 2015:

(Dollars in thousands)	March 31, 2016		December 31, 2015
Non-PCI loans and leases:
Commercial:
Construction and land development	$	626,311	$	620,352
Commercial mortgage	8,353,631		8,274,548
Other commercial real estate	324,858		321,021
Commercial and industrial	2,389,946		2,368,958
Lease financing	751,292		730,778
Other	343,877		314,832
Total commercial loans	12,789,915		12,630,489
Noncommercial:
Residential mortgage	2,718,208		2,695,985
Revolving mortgage	2,521,902		2,523,106
Construction and land development	213,232		220,073
Consumer	1,228,545		1,219,821
Total noncommercial loans	6,681,887		6,658,985
Total non-PCI loans and leases	19,471,802		19,289,474
PCI loans:
Commercial:
Construction and land development	32,799		33,880
Commercial mortgage	526,776		525,468
Other commercial real estate	18,050		17,076
Commercial and industrial	14,742		15,182
Other	1,860		2,008
Total commercial loans	594,227		593,614
Noncommercial:
Residential mortgage	298,662		302,158
Revolving mortgage	50,574		52,471
Consumer	2,424		2,273
Total noncommercial loans	351,660		356,902
Total PCI loans	945,887		950,516
Total loans and leases	$	20,417,689	$	20,239,990

At March 31, 2016, $258.2 million of total loans and leases were covered under loss share agreements, compared to $272.6 million at December 31, 2015. Loss share protection for United Western Bank (UWB), Atlantic Bank & Trust (ABT) and Colorado Capital Bank (CCB) non-single family residential loans with balances of $113.7 million, $9.0 million and $2.7 million at March 31, 2016 will expire at the beginning of the second quarter of 2016, third quarter of 2016 and fourth quarter of 2016, respectively.

At March 31, 2016, $8.51 billion in noncovered loans with a lendable collateral value of $6.08 billion were used to secure $585.3 million in Federal Home Loan Bank (FHLB) of Atlanta advances, resulting in additional borrowing capacity of $5.50 billion. At December 31, 2015, $8.58 billion in noncovered loans with a lendable collateral value of $6.08 billion were used to secure $510.3 million in FHLB of Atlanta advances, resulting additional borrowing capacity of $5.57 billion.

Net deferred fees on originated non-PCI loans and leases, including unearned income and unamortized costs, fees, premiums and discounts, were $13.2 million and $16.6 million at March 31, 2016 and December 31, 2015, respectively. The unamortized discount related to the non-PCI loans and leases acquired in the First Citizens Bancorporation, Inc. (Bancorporation) merger was $37.9 million and $41.1 million at March 31, 2016 and December 31, 2015, respectively. During the three months ended March 31, 2016 and March 31, 2015, accretion income on non-PCI loans was $3.2 million and $5.6 million, respectively.

Credit quality indicators

Loans and leases are monitored for credit quality on a recurring basis. The credit quality indicators used are dependent on the portfolio segment to which the loan relates. Commercial and noncommercial loans and leases have different credit quality indicators as a result of the unique characteristics of the loan segment being evaluated. The credit quality indicators for non-PCI and PCI commercial loans and leases are developed through a review of individual borrowers on an ongoing basis. Each commercial loan is evaluated annually with more frequent evaluation of more severely criticized loans or leases. The credit quality indicators for non-PCI and PCI noncommercial loans are based on the delinquency status of the borrower. As the borrower becomes more delinquent, the likelihood of loss increases. The indicators represent the rating for loans or leases as of the date presented based on the most recent assessment performed. These credit quality indicators are defined as follows:

Pass – A pass rated asset is not adversely classified because it does not display any of the characteristics for adverse classification.

Special mention – A special mention asset has potential weaknesses that deserve management’s close attention. If left uncorrected, such potential weaknesses may result in deterioration of the repayment prospects or collateral position at some future date. Special mention assets are not adversely classified and do not warrant adverse classification.

Substandard – A substandard asset is inadequately protected by the current net worth and paying capacity of the borrower or of the collateral pledged, if any. Assets classified as substandard generally have a well-defined weakness, or weaknesses, that jeopardize the liquidation of the debt. These assets are characterized by the distinct possibility of loss if the deficiencies are not corrected.

Doubtful – An asset classified as doubtful has all the weaknesses inherent in an asset classified substandard with the added characteristic that the weaknesses make collection or liquidation in full highly questionable and improbable on the basis of currently existing facts, conditions and values.

Loss – Assets classified as loss are considered uncollectible and of such little value that it is inappropriate to be carried as an asset. This classification is not necessarily equivalent to no potential for recovery or salvage value, but rather that it is not appropriate to defer a full charge-off even though partial recovery may be effected in the future.

Ungraded – Ungraded loans represent loans that are not included in the individual credit grading process due to their relatively small balances or borrower type. The majority of ungraded loans at March 31, 2016 and December 31, 2015 relate to business credit cards. Business credit card loans are subject to automatic charge-off when they become 120 days past due in the same manner as unsecured consumer lines of credit. The remaining balance is comprised of a small amount of commercial mortgage and other commercial real estate loans.

Non-PCI loans and leases outstanding at March 31, 2016 and December 31, 2015 by credit quality indicator are provided below:

	March 31, 2016
(Dollars in thousands)	Non-PCI commercial loans and leases
Grade:	Construction  and land development		Commercial mortgage		Other commercial real estate		Commercial  and industrial		Lease financing		Other		Total non-PCI commercial loans and leases
Pass	$	622,312	$	8,102,908	$	321,375	$	2,241,626	$	744,585	$	341,300	$	12,374,106
Special mention	1,926		97,425		1,294		14,003		3,698		1,334		119,680
Substandard	2,073		149,651		1,030		20,070		2,639		1,243		176,706
Doubtful	—		458		—		399		46		—		903
Ungraded	—		3,189		1,159		113,848		324		—		118,520
Total	$	626,311	$	8,353,631	$	324,858	$	2,389,946	$	751,292	$	343,877	$	12,789,915
	December 31, 2015
	Non-PCI commercial loans and leases
	Construction  and land development		Commercial mortgage		Other commercial real estate		Commercial  and industrial		Lease financing		Other		Total non-PCI commercial loans and leases
Pass	$	611,314	$	8,024,831	$	318,187	$	2,219,606	$	719,338	$	311,401	$	12,204,677
Special mention	5,191		100,220		475		19,361		4,869		1,905		132,021
Substandard	3,847		146,071		959		21,322		6,375		1,526		180,100
Doubtful	—		599		—		408		169		—		1,176
Ungraded	—		2,827		1,400		108,261		27		—		112,515
Total	$	620,352	$	8,274,548	$	321,021	$	2,368,958	$	730,778	$	314,832	$	12,630,489

	March 31, 2016
	Non-PCI noncommercial loans and leases
(Dollars in thousands)	Residential mortgage		Revolving mortgage		Construction and land development		Consumer		Total non-PCI noncommercial loans and leases
Current	$	2,673,451	$	2,501,519	$	208,944	$	1,220,091	$	6,604,005
30-59 days past due	24,701		11,219		3,121		5,339		44,380
60-89 days past due	7,041		2,396		325		1,722		11,484
90 days or greater past due	13,015		6,768		842		1,393		22,018
Total	$	2,718,208	$	2,521,902	$	213,232	$	1,228,545	$	6,681,887
	December 31, 2015
	Non-PCI noncommercial loans and leases
	Residential mortgage		Revolving mortgage		Construction and land development		Consumer		Total non-PCI noncommercial loans and leases
Current	$	2,651,209	$	2,502,065	$	214,555	$	1,210,832	$	6,578,661
30-59 days past due	23,960		11,706		3,211		5,545		44,422
60-89 days past due	7,536		3,704		669		1,822		13,731
90 days or greater past due	13,280		5,631		1,638		1,622		22,171
Total	$	2,695,985	$	2,523,106	$	220,073	$	1,219,821	$	6,658,985

PCI loans outstanding at March 31, 2016 and December 31, 2015 by credit quality indicator are provided below:

	March 31, 2016
(Dollars in thousands)	PCI commercial loans
Grade:	Construction and land development		Commercial mortgage		Other commercial real estate		Commercial and industrial		Other		Total PCI commercial loans
Pass	$	12,797	$	261,904	$	8,500	$	8,595	$	623	$	292,419
Special mention	1,781		87,801		59		548		—		90,189
Substandard	14,056		159,083		9,081		4,292		1,237		187,749
Doubtful	4,165		17,656		—		1,240		—		23,061
Ungraded	—		332		410		67		—		809
Total	$	32,799	$	526,776	$	18,050	$	14,742	$	1,860	$	594,227
	December 31, 2015
	PCI commercial loans
	Construction and land development		Commercial mortgage		Other commercial real estate		Commercial and industrial		Other		Total PCI commercial loans
Pass	$	14,710	$	262,579	$	7,366	$	9,302	$	706	$	294,663
Special mention	758		87,870		60		937		—		89,625
Substandard	14,131		163,801		9,229		4,588		1,302		193,051
Doubtful	4,281		10,875		—		282		—		15,438
Ungraded	—		343		421		73		—		837
Total	$	33,880	$	525,468	$	17,076	$	15,182	$	2,008	$	593,614

	March 31, 2016
	PCI noncommercial loans
(Dollars in thousands)	Residential mortgage		Revolving mortgage		Consumer		Total PCI noncommercial loans
Current	$	261,230	$	44,401	$	2,254	$	307,885
30-59 days past due	10,307		1,544		123		11,974
60-89 days past due	3,191		1,306		45		4,542
90 days or greater past due	23,934		3,323		2		27,259
Total	$	298,662	$	50,574	$	2,424	$	351,660
	December 31, 2015
	PCI noncommercial loans
	Residential mortgage		Revolving mortgage		Consumer		Total PCI noncommercial loans
Current	$	257,207	$	47,901	$	1,981	$	307,089
30-59 days past due	12,318		1,127		86		13,531
60-89 days past due	4,441		501		132		5,074
90 days or greater past due	28,192		2,942		74		31,208
Total	$	302,158	$	52,471	$	2,273	$	356,902

The aging of the outstanding non-PCI loans and leases, by class, at March 31, 2016 and December 31, 2015 is provided in the table below.

The calculation of days past due begins on the day after payment is due and includes all days through which all required interest or principal has not been paid. Loans and leases 30 days or less past due are considered current as various grace periods allow borrowers to make payments within a stated period after the due date and still remain in compliance with the loan agreement.

	March 31, 2016
(Dollars in thousands)	30-59 days past due		60-89 days past due		90 days or greater		Total past due		Current		Total loans and leases
Non-PCI loans and leases:
Construction and land development - commercial	$	1,039	$	9	$	312	$	1,360	$	624,951	$	626,311
Commercial mortgage	14,243		1,817		17,637		33,697		8,319,934		8,353,631
Other commercial real estate	1,144		248		27		1,419		323,439		324,858
Commercial and industrial	7,874		2,049		1,194		11,117		2,378,829		2,389,946
Lease financing	712		202		44		958		750,334		751,292
Residential mortgage	24,701		7,041		13,015		44,757		2,673,451		2,718,208
Revolving mortgage	11,219		2,396		6,768		20,383		2,501,519		2,521,902
Construction and land development - noncommercial	3,121		325		842		4,288		208,944		213,232
Consumer	5,339		1,722		1,393		8,454		1,220,091		1,228,545
Other	107		—		333		440		343,437		343,877
Total non-PCI loans and leases	$	69,499	$	15,809	$	41,565	$	126,873	$	19,344,929	$	19,471,802
	December 31, 2015
	30-59 days past due		60-89 days past due		90 days or greater		Total past due		Current		Total loans and leases
Non-PCI loans and leases:
Construction and land development - commercial	$	987	$	283	$	463	$	1,733	$	618,619	$	620,352
Commercial mortgage	13,023		3,446		14,495		30,964		8,243,584		8,274,548
Other commercial real estate	884		—		142		1,026		319,995		321,021
Commercial and industrial	2,133		1,079		1,780		4,992		2,363,966		2,368,958
Lease financing	2,070		2		164		2,236		728,542		730,778
Residential mortgage	23,960		7,536		13,280		44,776		2,651,209		2,695,985
Revolving mortgage	11,706		3,704		5,631		21,041		2,502,065		2,523,106
Construction and land development - noncommercial	3,211		669		1,638		5,518		214,555		220,073
Consumer	5,545		1,822		1,622		8,989		1,210,832		1,219,821
Other	3		164		134		301		314,531		314,832
Total non-PCI loans and leases	$	63,522	$	18,705	$	39,349	$	121,576	$	19,167,898	$	19,289,474

The recorded investment, by class, in loans and leases on nonaccrual status, and loans and leases greater than 90 days past due and still accruing at March 31, 2016 and December 31, 2015 for non-PCI loans and leases, were as follows:

	March 31, 2016				December 31, 2015
(Dollars in thousands)	Nonaccrual loans and leases		Loans and leases > 90 days and accruing		Nonaccrual loans and leases		Loans and leases > 90 days and accruing
Non-PCI loans and leases:
Construction and land development - commercial	$	534	$	23	$	425	$	273
Commercial mortgage	35,861		2,671		42,116		242
Other commercial real estate	134		—		239		—
Commercial and industrial	4,127		680		6,235		953
Lease financing	254		—		389		—
Residential mortgage	31,262		561		29,977		838
Revolving mortgage	14,159		—		12,704		—
Construction and land development - noncommercial	2,224		—		2,164		—
Consumer	1,632		792		1,472		1,007
Other	268		155		133		2
Total non-PCI loans and leases	$	90,455	$	4,882	$	95,854	$	3,315

Purchased credit-impaired loans (PCI) loans

The following table relates to PCI loans acquired in the NMSB acquisition and summarizes the contractually required payments, which include principal and interest, expected cash flows to be collected, and the fair value of PCI loans and leases at the acquisition date.

(Dollars in thousands)
Contractually required payments	$	51,098
Cash flows expected to be collected	$	41,592
Fair value of loans at acquisition	$	35,416

The recorded fair values of PCI loans acquired in the NMSB acquisition as of the acquisition date were as follows:

(Dollars in thousands)
Commercial:
Construction and land development	$	139
Commercial mortgage	25,237
Other commercial real estate	1,479
Commercial and industrial	1,520
Total commercial loans	28,375
Noncommercial:
Residential mortgage	6,128
Revolving mortgage	234
Consumer	679
Total noncommercial loans	7,041
Total PCI loans and leases	$	35,416

The following table provides changes in the carrying value of all purchased credit-impaired loans during the three months ended March 31, 2016 and March 31, 2015:

(Dollars in thousands)	2016			2015
Balance at January 1	$	950,516		$	1,186,498
Fair value of acquired loans	35,416			154,496
Accretion	21,398			25,067
Payments received and other changes, net	(61,443		)	(113,516		)
Balance at March 31	$	945,887		$	1,252,545
Unpaid principal balance at March 31	$	1,665,896		$	2,092,936

The carrying value of loans on the cost recovery method was $1.1 million at March 31, 2016 and $5.3 million at December 31, 2015. The cost recovery method is applied to loans when the timing of future cash flows is not reasonably estimable due to borrower nonperformance or uncertainty in the ultimate disposition of the asset. The recorded investment of PCI loans on nonaccrual status was $7.3 million and $7.6 million at March 31, 2016 and December 31, 2015, respectively.

For PCI loans, improved credit loss expectations generally result in the reclassification of nonaccretable difference to accretable yield. Changes in expected cash flows not related to credit improvements or deterioration do not affect the nonaccretable difference.

The following table documents changes to the amount of accretable yield for the first three months of 2016 and 2015.

(Dollars in thousands)	2016			2015
Balance at January 1	$	343,856		$	418,160
Additions from acquisitions	6,176			55,186
Accretion	(21,398		)	(25,067		)
Reclassifications from nonaccretable difference	9,905			1,294
Changes in expected cash flows that do not affect nonaccretable difference	4,418			(27,287		)
Balance at March 31	$	342,957		$	422,286

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Allowance for Loan and Lease Losses

3 Months Ended

Mar. 31, 2016

Loans and Leases Receivable, Allowance [Abstract]

Allowance

NOTE E - ALLOWANCE FOR LOAN AND LEASE LOSSES (ALLL)

The following tables present the activity in the ALLL for non-PCI loan and lease losses by loan class for the three months ended March 31, 2016 and March 31, 2015:

	Three months ended March 31, 2016
(Dollars in thousands)	Construction and land development - commercial			Commercial mortgage			Other commercial real estate			Commercial and industrial			Lease financing			Other			Residential mortgage			Revolving mortgage			Construction and land development - non- commercial			Consumer			Total
Non-PCI Loans
Allowance for loan and lease losses:
Balance at January 1	$	16,288		$	69,896		$	2,168		$	43,116		$	5,524		$	1,855		$	14,105		$	15,971		$	1,485		$	19,496		$	189,904
Provision	943			394			(104		)	2,201			(282		)	(328		)	776			1,158			87			1,995			6,840
Charge-offs	(426		)	(90		)	—			(1,317		)	—			(71		)	(174		)	(1,036		)	—			(3,108		)	(6,222		)
Recoveries	80			256			143			479			180			321			20			32			3			990			2,504
Balance at March 31	$	16,885		$	70,456		$	2,207		$	44,479		$	5,422		$	1,777		$	14,727		$	16,125		$	1,575		$	19,373		$	193,026
	Three months ended March 31, 2015
	Construction and land development - commercial			Commercial mortgage			Other commercial real estate			Commercial and industrial			Lease financing			Other			Residential mortgage			Revolving mortgage			Construction and land development - non- commercial			Consumer			Total
Balance at January 1	$	11,961		$	85,189		$	732		$	30,727		$	4,286		$	3,184		$	10,661		$	18,650		$	892		$	16,555		$	182,837
Provision	1,103			(3,679		)	458			7,546			11			(218		)	813			(462		)	118			2,966			8,656
Charge-offs	(18		)	(233		)	(169		)	(1,713		)	(15		)	—			(284		)	(793		)	(22		)	(2,783		)	(6,030		)
Recoveries	62			761			10			394			11			15			138			134			68			878			2,471
Balance at March 31	$	13,108		$	82,038		$	1,031		$	36,954		$	4,293		$	2,981		$	11,328		$	17,529		$	1,056		$	17,616		$	187,934

The following tables present the allowance for non-PCI loan losses and the recorded investment in loans, by loan class, based on impairment method as of March 31, 2016 and December 31, 2015:

	March 31, 2016
(Dollars in thousands)	Construction and land development - commercial		Commercial mortgage		Other commercial real estate		Commercial and industrial		Lease financing		Other		Residential mortgage		Revolving mortgage		Construction and land development - non-commercial		Consumer		Total
Allowance for loan and lease losses:
ALLL for loans and leases individually evaluated for impairment	$	83	$	3,467	$	282	$	650	$	191	$	49	$	1,203	$	310	$	27	$	514	$	6,776
ALLL for loans and leases collectively evaluated for impairment	16,802		66,989		1,925		43,829		5,231		1,728		13,524		15,815		1,548		18,859		186,250
Total allowance for loan and lease losses	$	16,885	$	70,456	$	2,207	$	44,479	$	5,422	$	1,777	$	14,727	$	16,125	$	1,575	$	19,373	$	193,026
Loans and leases:
Loans and leases individually evaluated for impairment	$	3,247	$	88,448	$	418	$	13,720	$	1,528	$	960	$	24,025	$	6,594	$	416	$	1,324	$	140,680
Loans and leases collectively evaluated for impairment	623,064		8,265,183		324,440		2,376,226		749,764		342,917		2,694,183		2,515,308		212,816		1,227,221		19,331,122
Total loan and leases	$	626,311	$	8,353,631	$	324,858	$	2,389,946	$	751,292	$	343,877	$	2,718,208	$	2,521,902	$	213,232	$	1,228,545	$	19,471,802
	December 31, 2015
(Dollars in thousands)	Construction and land development - commercial		Commercial mortgage		Other commercial real estate		Commercial and industrial		Lease financing		Other		Residential mortgage		Revolving mortgage		Construction and land development - non-commercial		Consumer		Total
Allowance for loan and lease losses:
ALLL for loans and leases individually evaluated for impairment	$	123	$	3,370	$	289	$	1,118	$	213	$	—	$	1,212	$	299	$	49	$	527	$	7,200
ALLL for loans and leases collectively evaluated for impairment	16,165		66,526		1,879		41,998		5,311		1,855		12,893		15,672		1,436		18,969		182,704
Total allowance for loan and lease losses	$	16,288	$	69,896	$	2,168	$	43,116	$	5,524	$	1,855	$	14,105	$	15,971	$	1,485	$	19,496	$	189,904
Loans and leases:
Loans and leases individually evaluated for impairment	$	3,094	$	95,107	$	427	$	17,910	$	1,755	$	1,183	$	22,986	$	5,883	$	784	$	1,238	$	150,367
Loans and leases collectively evaluated for impairment	617,258		8,179,441		320,594		2,351,048		729,023		313,649		2,672,999		2,517,223		219,289		1,218,583		19,139,107
Total loan and leases	$	620,352	$	8,274,548	$	321,021	$	2,368,958	$	730,778	$	314,832	$	2,695,985	$	2,523,106	$	220,073	$	1,219,821	$	19,289,474

The following tables show the activity in the allowance for PCI loan and lease losses by loan class for the three months ended March 31, 2016 and March 31, 2015.

	Three months ended March 31, 2016
(Dollars in thousands)	Construction and land development - commercial			Commercial mortgage			Other commercial real estate			Commercial and industrial			Residential mortgage			Revolving mortgage			Construction and land development - noncommercial			Consumer and other			Total
PCI Loans
Allowance for loan and lease losses:
Balance at January 1	$	1,082		$	7,838		$	773		$	445		$	5,398		$	523		$	—		$	253		$	16,312
Provision	(349		)	(980		)	2			(220		)	(347		)	(108		)	—			5			(1,997		)
Charge-offs	—			(108		)	(5		)	—			(371		)	—			—			(74		)	(558		)
Recoveries	—			—			—			—			—			—			—			—			—
Balance at March 31	$	733		$	6,750		$	770		$	225		$	4,680		$	415		$	—		$	184		$	13,757
	Three months ended March 31, 2015
(Dollars in thousands)	Construction and land development - commercial			Commercial mortgage			Other commercial real estate			Commercial and industrial			Residential mortgage			Revolving mortgage			Construction and land development - noncommercial			Consumer and other			Total
Balance at January 1	$	150		$	10,135		$	75		$	1,240		$	5,820		$	3,999		$	183		$	27		$	21,629
Provision	191			(925		)	119			(1,031		)	(863		)	(655		)	(152		)	452			(2,864		)
Charge-offs	—			(334		)	—			(198		)	(85		)	(73		)	—			(456		)	(1,146		)
Recoveries	—			—			—			—			—			—			—			—			—
Balance at March 31	$	341		$	8,876		$	194		$	11		$	4,872		$	3,271		$	31		$	23		$	17,619

The following tables show the ending balances of PCI loans and leases and related allowance by class of loans as of March 31, 2016 and December 31, 2015:

	March 31, 2016
(Dollars in thousands)	Construction and land development - commercial		Commercial mortgage		Other commercial real estate		Commercial and industrial		Residential mortgage		Revolving mortgage		Consumer and other		Total
ALLL for loans and leases acquired with deteriorated credit quality	$	733	$	6,750	$	770	$	225	$	4,680	$	415	$	184	$	13,757
Loans and leases acquired with deteriorated credit quality	32,799		526,776		18,050		14,742		298,662		50,574		4,284		945,887
	December 31, 2015
(Dollars in thousands)	Construction and land development - commercial		Commercial mortgage		Other commercial real estate		Commercial and industrial		Residential mortgage		Revolving mortgage		Consumer and other		Total
ALLL for loans and leases acquired with deteriorated credit quality	$	1,082	$	7,838	$	773	$	445	$	5,398	$	523	$	253	$	16,312
Loans and leases acquired with deteriorated credit quality	33,880		525,468		17,076		15,182		302,158		52,471		4,281		950,516

As of March 31, 2016, and December 31, 2015, $479.2 million and $469.3 million, respectively, in PCI loans experienced an adverse change in expected cash flows since the date of acquisition. The corresponding valuation reserve was $13.8 million and $16.3 million, respectively.

The following tables provide information on non-PCI impaired loans and leases, exclusive of loans and leases evaluated collectively as a homogeneous group, as of March 31, 2016 and December 31, 2015 including interest income recognized in the period during which the loans and leases were considered impaired.

	March 31, 2016
(Dollars in thousands)	With a recorded allowance		With no recorded allowance		Total		Unpaid principal balance		Related allowance recorded
Non-PCI impaired loans and leases:
Construction and land development - commercial	$	1,356	$	1,891	$	3,247	$	4,602	$	83
Commercial mortgage	37,464		50,984		88,448		97,320		3,467
Other commercial real estate	297		121		418		858		282
Commercial and industrial	5,356		8,364		13,720		16,692		650
Lease financing	1,304		224		1,528		1,577		191
Other	898		62		960		1,037		49
Residential mortgage	10,001		14,024		24,025		24,989		1,203
Revolving mortgage	1,059		5,535		6,594		8,049		310
Construction and land development - noncommercial	416		—		416		416		27
Consumer	962		362		1,324		1,401		514
Total non-PCI impaired loans and leases	$	59,113	$	81,567	$	140,680	$	156,941	$	6,776
	December 31, 2015
(Dollars in thousands)	With a recorded allowance		With no recorded allowance		Total		Unpaid principal balance		Related allowance recorded
Non-PCI impaired loans and leases:
Construction and land development - commercial	$	1,623	$	1,471	$	3,094	$	4,428	$	123
Commercial mortgage	41,793		53,314		95,107		103,763		3,370
Other commercial real estate	305		122		427		863		289
Commercial and industrial	8,544		9,366		17,910		21,455		1,118
Lease financing	1,651		104		1,755		1,956		213
Other	—		1,183		1,183		1,260		—
Residential mortgage	10,097		12,889		22,986		25,043		1,212
Revolving mortgage	1,105		4,778		5,883		7,120		299
Construction and land development - noncommercial	693		91		784		784		49
Consumer	1,050		188		1,238		1,294		527
Total non-PCI impaired loans and leases	$	66,861	$	83,506	$	150,367	$	167,966	$	7,200

The following tables show the average non-PCI impaired loan balance and the interest income recognized by loan class for the three months ended March 31, 2016 and March 31, 2015:

	Three months ended March 31, 2016				Three months ended March 31, 2015
(Dollars in thousands)	Average balance		Interest income recognized		Average balance		Interest income recognized
Non-PCI impaired loans and leases:
Construction and land development - commercial	$	3,164	$	41	$	3,052	$	35
Commercial mortgage	92,945		766		80,553		769
Other commercial real estate	423		5		551		1
Commercial and industrial	15,551		151		14,229		103
Lease financing	1,657		20		1,590		18
Other	1,072		14		1,990		—
Residential mortgage	23,500		172		15,364		125
Revolving mortgage	6,309		32		2,986		16
Construction and land development - noncommercial	556		6		658		7
Consumer	1,265		18		1,022		19
Total non-PCI impaired loans and leases	$	146,442	$	1,225	$	121,995	$	1,093

Troubled Debt Restructurings

BancShares accounts for certain loan modifications or restructurings as troubled debt restructurings (TDRs). In general, the modification or restructuring of a loan is considered a TDR if, for economic reasons or legal reasons related to a borrower's financial difficulties, a concession is granted to the borrower that creditors would not otherwise grant. Concessions may relate to the contractual interest rate, maturity date, payment structure or other actions. In accordance with GAAP, acquired loans accounted for under ASC 310-30, Loans and Debt Securities Acquired with Deteriorated Credit Quality, are not initially considered to be TDRs, but can be classified as such if a modification is made subsequent to acquisition. Subsequent modifications of a PCI loan accounted for in a pool that would otherwise meet the definition of a TDR is not reported, or accounted for, as a TDR since pooled PCI loans are excluded from the scope of TDR accounting.

The following table provides a summary of total TDRs by accrual status.

	March 31, 2016						December 31, 2015
(Dollars in thousands)	Accruing		Nonaccruing		Total		Accruing		Nonaccruing		Total
Commercial loans
Construction and land development - commercial	$	3,637	$	268	$	3,905	$	3,624	$	257	$	3,881
Commercial mortgage	66,385		17,588		83,973		65,812		18,728		84,540
Other commercial real estate	1,614		84		1,698		1,751		89		1,840
Commercial and industrial	8,139		783		8,922		8,833		3,341		12,174
Lease	1,136		46		1,182		1,191		169		1,360
Other	960		—		960		1,183		—		1,183
Total commercial TDRs	81,871		18,769		100,640		82,394		22,584		104,978
Noncommercial
Residential mortgage	26,685		6,546		33,231		25,427		7,129		32,556
Revolving mortgage	3,624		2,179		5,803		3,600		1,705		5,305
Construction and land development - noncommercial	416		—		416		784		—		784
Consumer and other	1,133		174		1,307		1,091		129		1,220
Total noncommercial TDRs	31,858		8,899		40,757		30,902		8,963		39,865
Total TDRs	$	113,729	$	27,668	$	141,397	$	113,296	$	31,547	$	144,843

The majority of TDRs are included in the special mention, substandard or doubtful grading categories. When a restructured loan subsequently defaults, it is evaluated and downgraded if appropriate. The more severely graded the loan, the lower the estimated expected cash flows and the greater the allowance recorded. Further, TDRs over $500,000 and graded substandard or lower are evaluated individually for impairment through a review of collateral values or analysis of cash flows.

The following table shows the accrual status of non-PCI and PCI TDRs.

(Dollars in thousands)	March 31, 2016		December 31, 2015
Accruing TDRs:
PCI	$	29,410	$	29,231
Non-PCI	84,319		84,065
Total accruing TDRs	113,729		113,296
Nonaccruing TDRs:
PCI	923		1,420
Non-PCI	26,745		30,127
Total nonaccruing TDRs	27,668		31,547
All TDRs:
PCI	30,333		30,651
Non-PCI	111,064		114,192
Total TDRs	$	141,397	$	144,843

The following tables provide the types of TDRs made during the three months ended March 31, 2016 and March 31, 2015, as well as a summary of loans that were modified as a TDR during the twelve months ended March 31, 2016 and March 31, 2015 that subsequently defaulted during the three months ended March 31, 2016 and March 31, 2015. BancShares defines payment default as movement of the TDR to nonaccrual status, which is generally 90 days past due for TDRs, foreclosure or charge-off, whichever occurs first.

	Three months ended March 31, 2016						Three months ended March 31, 2015
	All restructurings			Restructurings with payment default			All restructurings			Restructurings with payment default
(Dollars in thousands)	Number of Loans	Recorded investment at period end		Number of Loans	Recorded investment at period end		Number of Loans	Recorded investment at period end		Number of Loans	Recorded investment at period end
Non-PCI loans and leases
Interest only period provided
Commercial mortgage	1	$	252	1	$	252	—	$	—	—	$	—
Commercial and industrial	—	—		—	—		1	3,796		1	3,796
Total interest only	1	252		1	252		1	3,796		1	3,796
Loan term extension
Construction and land development - commercial	1	404		—	—		1	220		1	220
Commercial mortgage	1	—		—	—		3	535		—	—
Revolving mortgage	—	—		—	—		1	10		—	—
Residential mortgage	1	34		—	—		—	—		—	—
Consumer	—	—		—	—		1	5		—	—
Total loan term extension	3	438		—	—		6	770		1	220
Below market interest rate
Construction and land development - commercial	1	18		1	18		2	47		—	—
Commercial mortgage	10	1,422		4	511		9	3,541		2	733
Commercial and industrial	3	12		—	—		3	172		—	—
Residential mortgage	46	3,288		13	841		23	708		2	45
Revolving mortgage	—	—		—	—		2	18		—	—
Construction and land development - noncommercial	—	—		—	—		2	396		—	—
Consumer	2	73		—	—		3	34		—	—
Other	—	—		—	—		1	1,950		—	—
Total below market interest rate	62	4,813		18	1,370		45	6,866		4	778
Discharged from bankruptcy
Construction and land development - commercial	—	—		1	16		—	—		—	—
Residential mortgage	1	144		—	—		2	68		—	—
Revolving mortgage	8	347		8	277		5	218		2	147
Consumer	7	68		4	59		—	—		—	—
Total discharged from bankruptcy	16	559		13	352		7	286		2	147
Total non-PCI restructurings	82	$	6,062	32	$	1,974	59	$	11,718	8	$	4,941

	Three months ended March 31, 2016						Three months ended March 31, 2015
	All restructurings			Restructurings with payment default			All restructurings			Restructurings with payment default
(Dollars in thousands)	Number of loans	Recorded investment at period end		Number of loans	Recorded investment at period end		Number of loans	Recorded investment at period end		Number of loans	Recorded investment at period end
PCI loans
Below market interest rate
Construction and land development - commercial	1	$	14	—	$	—	—	$	—	—	$	—
Commercial mortgage	3	2,016		—	—		—	—		—	—
Commercial and industrial	—	—		—	—		—	—		1	65
Residential mortgage	—	—		—	—		7	470		—	—
Total below market interest rate	4	2,030		—	—		7	470		1	65
Total PCI restructurings	4	$	2,030	—	$	—	7	$	470	1	$	65

For the three months ended March 31, 2016 and March 31, 2015, the recorded investment in TDRs subsequent to modification was not materially impacted by the modification since forgiveness of principal is not a restructuring option frequently used by BancShares.

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FDIC Loss Share Receivable

3 Months Ended

Mar. 31, 2016

FDIC Loss Share Receivable [Abstract]

FDIC Loss Share Receivable

FDIC LOSS SHARE RECEIVABLE

The following table provides changes in the receivable from the FDIC for the three months ended March 31, 2016 and March 31, 2015.

	Three months ended March 31
(Dollars in thousands)	2016			2015
Beginning balance	$	4,054		$	28,701
Amortization	(2,375		)	(5,031		)
Net cash payments to FDIC	9,871			5,762
Post-acquisition adjustments	(4,076		)	(8,092		)
Ending balance	$	7,474		$	21,340

The receivable from the FDIC for loss share agreements is measured separately from the related covered assets and is recorded at fair value at the acquisition date using projected cash flows based on the expected reimbursements for losses and the applicable loss share percentages. See Note Lfor information related to FCB's recorded payable to the FDIC for loss share agreements.

Amortization reflects changes in the FDIC loss share receivable due to improvements in expected cash flows that are being recognized over the remaining term of the loss share agreement. Cash payments to FDIC represent the net impact of loss share loan recoveries, charge-offs and related expenses as calculated and reported in FDIC loss share certificates. Post-acquisition adjustments represent the net change in loss estimates related to acquired loans and covered OREO as a result of changes in expected cash flows and the ALLL related to those covered loans. At the beginning of the second, third and fourth quarters of 2016, the loss share protection will expire for non-single family residential loans acquired from UWB, ABT and CCB, respectively. At December 31, 2016, loss share protection will have expired for all non-single family residential loans and loss share protection will remain only for single family residential loans acquired with loss share agreements.

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Mortgage Servicing Rights

3 Months Ended

Mar. 31, 2016

Mortgage Servicing Rights [Abstract]

Transfers and Servicing of Financial Assets [Text Block]

MORTGAGE SERVICING RIGHTS

Our portfolio of residential mortgage loans serviced for third parties was $2.20 billion and $2.15 billion as of March 31, 2016 and December 31, 2015, respectively.  These loans were originated by BancShares and sold to third parties on a non-recourse basis with servicing rights retained.  These retained servicing rights are recorded as a servicing asset on the Consolidated Balance Sheets and are initially recorded at fair value.

The activity of the servicing asset for the three months ended March 31, 2016 and 2015 is presented in the following table:

	Three months ended March 31
(Dollars in thousands)	2016			2015
Beginning balance	$	19,351		$	16,688
Servicing rights originated	977			662
Amortization	(1,268		)	(852		)
Valuation allowance provision	(1,874		)	(62		)
Ending balance	$	17,186		$	16,436

The following table presents the activity in the servicing asset valuation allowance for the three months ended March 31, 2016 and 2015:

	Three months ended March 31
(Dollars in thousands)	2016		2015
Beginning balance	$	95	$	850
Valuation allowance provision	1,874		62
Ending balance	$	1,969	$	912

As of March 31, 2016, the carrying value of BancShares' mortgage servicing rights was $17.2 million. Contractually specified mortgage servicing fees, late fees, and ancillary fees earned for the three months ended March 31, 2016 and 2015 were $1.4 million and $1.3 million, respectively, and are included in mortgage income in the Consolidated Statements of Income.

The amortization expense related to mortgage servicing rights, included as a reduction of mortgage income in the Consolidated Statements of Income, was $1.3 million and $852 thousand for the three months ended March 31, 2016 and 2015, respectively. Mortgage income included an impairment of $1.9 million and $62 thousand for the three months ended March 31, 2016 and 2015, respectively.

Valuation of mortgage servicing rights is performed using a pooling methodology. Similar loans are pooled together and evaluated on a discounted earnings basis to determine the present value of future earnings. Key economic assumptions used to value mortgage servicing rights as of March 31, 2016 and December 31, 2015 were as follows:

	March 31, 2016			December 31, 2015
Discount rate - conventional fixed loans	8.77		%	9.31		%
Discount rate - all loans excluding conventional fixed loans	9.77		%	10.31		%
Weighted average constant prepayment rate	13.32		%	11.01		%
Weighted average cost to service a loan	$	62.75		$	56.61

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Repurchase Agreements

3 Months Ended

Mar. 31, 2016

Repurchase Agreements [Abstract]

Repurchase Agreements, Resale Agreements, Securities Borrowed, and Securities Loaned Disclosure [Text Block]

REPURCHASE AGREEMENTS

BancShares utilizes securities sold under agreements to repurchase to facilitate the needs of customers and secure long-term funding needs. Repurchase agreements are transactions whereby BancShares offers to sell to a counterparty an undivided interest in an eligible security at an agreed upon purchase price, and which obligates BancShares to repurchase the security on an agreed upon date at an agreed upon repurchase price plus interest at an agreed upon rate. Securities sold under agreements to repurchase are recorded at the amount of cash received in connection with the transaction and are generally reflected as short-term borrowings on the Consolidated Balance Sheets.

BancShares monitors collateral levels on a continuous basis and maintains records of each transaction specifically describing the applicable security and the counterparty’s fractional interest in that security, and segregate the security from general assets in accordance with regulations governing custodial holdings of securities. The primary risk with repurchase agreements is market risk associated with the investments securing the transactions, as additional collateral may be required based on fair value changes of the underlying investments. Securities pledged as collateral under repurchase agreements are maintained with safekeeping agents. The carrying value of available for sale investment securities pledged as collateral under repurchase agreements was $787.0 million and $722.0 million at March 31, 2016 and December 31, 2015, respectively.

The remaining contractual maturity of the securities sold under agreements to repurchase by class of collateral pledged included in the Consolidated Balance Sheets as of March 31, 2016 and December 31, 2015 is presented in the following tables.

	March 31, 2016
	Remaining Contractual Maturity of the Agreements
(Dollars in thousands)	Overnight and continuous		Up to 30 Days		30-90 Days		Greater than 90 Days		Total
Repurchase agreements
U.S. Treasury	$	686,685	$	—	$	—	$	25,720	$	712,405
Government agency	—		—		—		4,280		4,280
Total borrowings	$	686,685	$	—	$	—	$	30,000	$	716,685
Gross amount of recognized liabilities for repurchase agreements									$	716,685
	December 31, 2015
	Remaining Contractual Maturity of the Agreements
	Overnight and continuous		Up to 30 Days		30-90 Days		Greater than 90 Days		Total
Repurchase agreements
U.S. Treasury	$	592,182	$	—	$	—	$	25,724	$	617,906
Government agency	—		—		—		4,276		4,276
Total borrowings	$	592,182	$	—	$	—	$	30,000	$	622,182
Gross amount of recognized liabilities for repurchase agreements									$	622,182

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Estimated Fair Values

3 Months Ended

Mar. 31, 2016

Fair Value Disclosures [Abstract]

Estimated Fair Values

ESTIMATED FAIR VALUES

Fair value estimates are intended to represent the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants as of the measurement date. Where there is no active market for a financial instrument, BancShares has made estimates using discounted cash flows or other valuation techniques. Inputs to these valuation methods are subjective in nature, involve uncertainties and require significant judgment and therefore cannot be determined with precision. Accordingly, the derived fair value estimates presented below are not necessarily indicative of the amounts BancShares could realize in a current market exchange.

ASC 820, Fair Value Measurements and Disclosures, indicates that assets and liabilities are recorded at fair value according to a fair value hierarchy comprised of three levels. The levels are based on the markets in which the assets and liabilities are traded and the reliability of the assumptions used to determine fair value. The level within the fair value hierarchy for an asset or liability is based on the highest level of input that is significant to the fair value measurement (with level 1 considered highest and level 3 considered lowest). A brief description of each level follows:

• Level 1 values are based on quoted prices for identical instruments in active markets.

• Level 2 values are based on quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active and model-based valuation techniques for which all significant assumptions are observable in the market.

• Level 3 values are generated from model-based techniques that use at least one significant assumption not observable in the market. These unobservable assumptions reflect estimates that market participants would use in pricing the asset or liability. Valuation techniques include the use of discounted cash flow models and similar techniques.

Valuation adjustments, such as those pertaining to counterparty and BancShares' own credit quality and liquidity, may be necessary to ensure that assets and liabilities are recorded at fair value. Credit valuation adjustments are made when market pricing does not accurately reflect the counterparty's credit quality. As determined by BancShares management, liquidity valuation adjustments may be made to the fair value of certain assets to reflect the uncertainty in the pricing and trading of the instruments when we are unable to observe recent market transactions for identical or similar instruments.

BancShares management reviews any changes to its valuation methodologies to ensure they are appropriate and justified, and refines valuation methodologies as more market-based data becomes available. Transfers between levels of the fair value hierarchy are recognized at the end of the reporting period.

The methodologies used to estimate the fair value of financial assets and financial liabilities are discussed below:

Investment securities available for sale. U.S.Treasury, government agency, mortgage-backed securities, municipal securities and trust preferred securities are generally measured at fair value using a third party pricing service or recent comparable market transactions in similar or identical securities and are classified as level 2 instruments. Equity securities are measured at fair value using observable closing prices and the valuation also considers the amount of market activity by examining the trade volume of each security. Equity securities are classified as Level 1 if they are traded on a heavily active market and as Level 2 if the observable closing price is from a less than active market.

Loans held for sale. Certain residential real estate loans are originated to be sold to investors, which are carried at fair value as BancShares elected the fair value option on loans held for sale. The fair value is based on quoted market prices for similar types of loans. Accordingly, the inputs used to calculate fair value of residential real estate loans held for sale are classified as level 2 inputs.

Net loans and leases (PCI and Non-PCI). Fair value is estimated based on discounted future cash flows using the current interest rates at which loans with similar terms would be made to borrowers of similar credit quality. An additional valuation adjustment is made for liquidity. The inputs used in the fair value measurements for loans and leases are considered level 3 inputs.

FHLB stock. The carrying amount of FHLB stock is a reasonable estimate of fair value as these securities are not readily marketable and are evaluated for impairment based on the ultimate recoverability of the par value. BancShares considers positive and negative evidence, including the profitability and asset quality of the issuer, dividend payment history and recent redemption experience, when determining the ultimate recoverability of the par value. BancShares believes its investment in FHLB stock is ultimately recoverable at par. The inputs used in the fair value measurement for the FHLB stock are considered level 2 inputs.

Mortgage servicing rights. Mortgage servicing rights are carried at the lower of amortized cost or market and are, therefore, carried at fair value only when fair value is less than the asset cost. The fair value of mortgage servicing rights is performed using a pooling methodology. Similar loans are pooled together and a model that relies on discount rates, estimates of prepayment rates and the weighted average cost to service the loans is used to determine the fair value. The inputs used in the fair value measurement for mortgage servicing rights are considered level 3 inputs.

Deposits. For non-time deposits, carrying value is a reasonable estimate of fair value. The fair value of time deposits is estimated by discounting future cash flows using the interest rates currently offered for deposits of similar remaining maturities. The inputs used in the fair value measurement for deposits are considered level 2 inputs.    

Long-term obligations. For fixed rate trust preferred securities, the fair values are determined based on recent trades of the actual security if available. For other long-term obligations, fair values are estimated by discounting future cash flows using current interest rates for similar financial instruments. The inputs used in the fair value measurement for long-term obligations are considered level 2 inputs.

Payable to the FDIC for loss share agreements. The fair value of the payable to the FDIC for loss share agreements is determined by the projected cash flows based on expected payments to the FDIC in accordance with the loss share agreements. Cash flows are discounted using current discount rates to reflect the timing of the estimated amounts due to the FDIC. The inputs used in the fair value measurement for the payable to the FDIC are considered level 3 inputs.

Interest rate swap. Under the terms of the existing cash flow hedge, BancShares pays a fixed payment to the counterparty in exchange for receipt of a variable payment that is determined based on the three-month LIBOR rate. The fair value of the cash flow hedge is, therefore, based on projected LIBOR rates for the duration of the hedge, values that, while observable in the market, are subject to adjustment due to pricing considerations for the specific instrument. The inputs used in the fair value measurement of the interest rate swap are considered level 2 inputs.

Off-balance-sheet commitments and contingencies. Carrying amounts are reasonable estimates of the fair values for such financial instruments. Carrying amounts include unamortized fee income and, in some cases, reserves for any credit losses from those financial instruments. These amounts are not material to BancShares' financial position.

For all other financial assets and financial liabilities, the carrying value is a reasonable estimate of the fair value as of March 31, 2016 and December 31, 2015. The carrying value and fair value for these assets and liabilities are equivalent because they are relatively short term in nature and there is no interest rate or credit risk that would cause the fair value to differ from the carrying value. Cash and due from banks is classified on the fair value hierarchy as level 1. Overnight investments, income earned not collected, short-term borrowings and accrued interest payable are considered level 2. Lastly, the receivable from the FDIC for loss share agreements is designated as level 3.

(Dollars in thousands)	March 31, 2016				December 31, 2015
	Carrying value		Fair value		Carrying value		Fair value
Cash and due from banks	$	457,758	$	457,758	$	534,086	$	534,086
Overnight investments	2,871,105		2,871,105		2,063,132		2,063,132
Investment securities available for sale	6,687,289		6,687,289		6,861,293		6,861,293
Investment securities held to maturity	194		203		255		265
Loans held for sale	66,988		66,988		59,766		59,766
Net loans and leases	20,210,906		19,703,240		20,033,774		19,353,325
Receivable from the FDIC for loss share agreements (1)	7,474		7,474		4,054		4,054
Income earned not collected	73,518		73,518		70,036		70,036
Federal Home Loan Bank stock	40,407		40,407		37,511		37,511
Mortgage servicing rights	17,186		17,234		19,351		19,495
Deposits	27,365,245		26,904,946		26,930,755		26,164,472
Short-term borrowings	689,236		689,236		594,733		594,733
Long-term obligations	779,087		808,765		704,155		718,102
Payable to the FDIC for loss share agreements	128,243		136,646		126,453		131,894
Accrued interest payable	6,037		6,037		5,713		5,713
Interest rate swap	729		729		1,429		1,429

⁽¹⁾ At March 31, 2016 and December 31, 2015, the carrying value of the FDIC receivable approximates the fair value due to the short term nature of the majority of loss share agreements.

Among BancShares' assets and liabilities, investment securities available for sale, loans held for sale and interest rates swaps accounted for as cash flow hedges are reported at their fair values on a recurring basis. For assets and liabilities carried at fair value on a recurring basis, the following table provides fair value information as of March 31, 2016 and December 31, 2015.

	March 31, 2016
			Fair value measurements using:
(Dollars in thousands)	Fair value		Level 1 inputs		Level 2 inputs		Level 3 inputs
Assets measured at fair value
Investment securities available for sale
U.S. Treasury	$	1,541,215	$	—	$	1,541,215	$	—
Government agency	356,157		—		356,157		—
Mortgage-backed securities	4,727,282		—		4,727,282		—
Equity securities	52,095		7,400		44,695		—
Other	10,540		—		10,540		—
Total investment securities available for sale	$	6,687,289	$	7,400	$	6,679,889	$	—
Loans held for sale	$	66,988	$	—	$	66,988	$	—
Liabilities measured at fair value
Interest rate swaps accounted for as cash flow hedges	$	729	$	—	$	729	$	—
	December 31, 2015
			Fair value measurements using:
	Fair value		Level 1 inputs		Level 2 inputs		Level 3 inputs
Assets measured at fair value
Investment securities available for sale
U.S. Treasury	$	1,674,882	$	—	$	1,674,882	$	—
Government agency	498,660		—		498,660		—
Mortgage-backed securities	4,668,198		—		4,668,198		—
Equity securities	8,893		1,668		7,225		—
Other	10,660		—		10,660		—
Total investment securities available for sale	$	6,861,293	$	1,668	$	6,859,625	$	—
Loans held for sale	$	59,766	$	—	$	59,766	$	—
Liabilities measured at fair value
Interest rate swaps accounted for as cash flow hedges	$	1,429	$	—	$	1,429	$	—

There were no transfers between levels during the three months ended March 31, 2016.

Fair Value Option

BancShares has elected the fair value option for residential real estate loans held for sale. This election reduces certain timing differences in the Consolidated Statement of Income and better aligns with the management of the portfolio from a business perspective.

The following table summarizes the difference between the aggregate fair value and the aggregate unpaid principal balance for residential real estate loans held for sale measured at fair value as of March 31, 2016 and December 31, 2015.

	March 31, 2016
(Dollars in thousands)	Fair Value		Aggregate Unpaid Principal Balance		Difference
Loans held for sale	$	66,988	$	65,350	$	1,638
	December 31, 2015
	Fair Value		Aggregate Unpaid Principal Balance		Difference
Loans held for sale	$	59,766	$	58,890	$	876

No loans held for sale were 90 or more days past due or on nonaccrual status as of March 31, 2016 or December 31, 2015.

The changes in fair value for residential real estate loans held for sale for which we elected the fair value option are included in the table below for the three months ended March 31, 2016 and 2015.

	Three months ended March 31
(Dollars in thousands)	2016		2015
Gains (losses) from fair value changes on loans held for sale	$	763	$	430

The changes in fair value in the table above are recorded as a component of mortgage income on the Consolidated Statements of Income.

Certain other assets are adjusted to their fair value on a nonrecurring basis, including impaired loans, OREO, goodwill, which are periodically tested for impairment, and mortgage servicing rights, which are carried at the lower of amortized cost or market. Non-impaired loans held for investment, deposits, short-term borrowings and long-term obligations are not reported at fair value.

Impaired loans are deemed to be at fair value if an associated allowance or current period charge-off has been recorded. The value of impaired loans is determined by either collateral valuations or discounted present value of the expected cash flow calculations. Collateral values are determined using appraisals or other third-party value estimates of the subject property with discounts generally between 10 and 14 percent applied for estimated holding and selling costs and other external factors that may impact the marketability of the property. Expected cash flows are determined using expected payment information at the individual loan level, discounted using the effective interest rate. The effective interest rate generally ranges between 2 and 16 percent.

OREO is measured and reported at fair value using collateral valuations. Collateral values are determined using appraisals or other third-party value estimates of the subject property with discounts generally between 10 and 14 percent applied for estimated holding and selling costs and other external factors that may impact the marketability of the property. Changes to the value of the assets between scheduled valuation dates are monitored through continued communication with brokers and monthly reviews by the asset manager assigned to each asset. If there are any significant changes in the market or the subject property, valuations are adjusted or new appraisals ordered to ensure the reported values reflect the most current information. OREO that has been acquired or written down in the current year is deemed to be at fair value and included in the table below.

Mortgage servicing rights are carried at the lower of cost or market and are, therefore, carried at fair value only when fair value is less than the amortized asset cost. The fair value of mortgage servicing rights is performed using a pooling methodology. Similar loans are pooled together and a discounted cash flow model, which takes into consideration discount rates, prepayment rates, and the weighted average cost to service the loans, is used to determine the fair value.

For financial assets and liabilities carried at fair value on a nonrecurring basis, the following table provides fair value information as of March 31, 2016 and December 31, 2015.

	March 31, 2016
			Fair value measurements using:
(Dollars in thousands)	Fair value		Level 1 inputs		Level 2 inputs		Level 3 inputs
Impaired loans	$	52,337	$	—	$	—	$	52,337
Other real estate not covered under loss share agreements remeasured during current year	17,278		—		—		17,278
Other real estate covered under loss share agreements remeasured during current year	6,247		—		—		6,247
Mortgage servicing rights	16,800		—		—		16,800
	December 31, 2015
			Fair value measurements using:
	Fair value		Level 1 inputs		Level 2 inputs		Level 3 inputs
Impaired loans	$	64,197	$	—	$	—	$	64,197
Other real estate not covered under loss share agreements remeasured during current year	44,571		—		—		44,571
Other real estate covered under loss share agreements remeasured during current year	4,403		—		—		4,403
Mortgage servicing rights	17,997		—		—		17,997

No financial liabilities were carried at fair value on a nonrecurring basis as of March 31, 2016 and December 31, 2015.

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Employee Benefit Plans

3 Months Ended

Mar. 31, 2016

General Discussion of Pension and Other Postretirement Benefits [Abstract]

Employee Benefit Plans

EMPLOYEE BENEFIT PLANS

BancShares sponsors noncontributory defined benefit pension plans for its qualifying employees (BancShares Plan) and legacy Bancorporation employees (Bancorporation Plan). Net periodic benefit cost is a component of employee benefits expense.

BancShares Plan

For the three months ended March 31, 2016 and 2015, the components of net periodic benefit cost are as follows:

	Three months ended March 31
(Dollars in thousands)	2016			2015
Service cost	$	3,220		$	3,600
Interest cost	7,180			6,748
Expected return on assets	(9,159		)	(8,295		)
Amortization of prior service cost	52			53
Amortization of net actuarial loss	1,600			2,833
Net periodic benefit cost	$	2,893		$	4,939

Bancorporation Plan

For the three months ended March 31, 2016 and 2015, the components of net periodic benefit cost are as follows:

	Three months ended March 31
(Dollars in thousands)	2016			2015
Service cost	$	650		$	933
Interest cost	1,675			1,628
Expected return on assets	(2,779		)	(2,869		)
Net periodic benefit cost	$	(454	)	$	(308	)

No contributions were made during the three months ended March 31, 2016 to the BancShares or Bancorporation pension plans. BancShares does not expect to make any contributions to either of the defined benefit pension plans during 2016.

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Commitments and Contingencies

3 Months Ended

Mar. 31, 2016

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

COMMITMENTS AND CONTINGENCIES

To meet the financing needs of its customers, BancShares and its subsidiaries have financial instruments with off-balance sheet risk. These financial instruments include commitments to extend credit, standby letters of credit and recourse obligations on mortgage loans sold. These instruments involve elements of credit, interest rate or liquidity risk.

Commitments to extend credit are legally binding agreements to lend to customers. Commitments generally have fixed expiration dates or other termination clauses and may require payment of fees. Since many of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future liquidity requirements. Established credit standards control the credit risk exposure associated with these commitments. In some cases, BancShares requires that collateral be pledged to secure the commitment, including cash deposits, securities and other assets. At March 31, 2016, BancShares had unused commitments that were $8.08 billion, compared to $7.95 billion at December 31, 2015. Total unfunded commitments relating to investments in affordable housing projects was $58.1 million and $41.8 million at March 31, 2016 and December 31, 2015, respectively, and are included in other liabilities on BancShares' Consolidated Balance Sheets. Affordable housing project investments were $110.0 million and $85.6 million at March 31, 2016 and December 31, 2015, respectively, and are included in other assets on the Consolidated Balance Sheets.

Standby letters of credit are commitments guaranteeing performance of a customer to a third party. Those commitments are primarily issued to support public and private borrowing arrangements. To mitigate its risk, BancShares’ follows its credit policies in the issuance of standby letters of credit. At March 31, 2016 and December 31, 2015, BancShares had standby letters of credit amounting to $80.3 million and $77.9 million, respectively. The credit risk related to the issuance of these letters of credit is essentially the same as that involved in extending loans to clients and, therefore, these letters of credit are collateralized when necessary.

Pursuant to standard representations and warranties relating to residential mortgage loan sales, contingent obligations exist for various events that may occur following the loan sale. If underwriting or documentation deficiencies are discovered at any point in the life of the loan or if the loan becomes nonperforming within 120 days of its sale, the investor may require BancShares to repurchase the loan or to repay a portion of the sale proceeds. Other liabilities included reserves of $3.0 million as of March 31, 2016 and December 31, 2015 for estimated losses arising from these standard representation and warranty provisions.

BancShares has recorded a receivable from the FDIC totaling $7.5 million and $4.1 million as of March 31, 2016 and December 31, 2015, respectively, for the expected reimbursement of losses on assets covered under the various loss share agreements. These loss share agreements impose certain obligations on us that, in the event of noncompliance, could result in the delay or disallowance of some or all of our rights under those agreements. Requests for reimbursement are subject to FDIC review and may be delayed or disallowed for noncompliance. The loss share agreements are subject to interpretation by both the FDIC and BancShares, and disagreements may arise regarding coverage of losses, expenses and contingencies.

The loss share agreements for five FDIC-assisted transactions include provisions related to payments that may be owed to the FDIC at the termination of the agreements (clawback liability).The clawback liability represents a payment by BancShares to the FDIC if actual cumulative losses on acquired covered assets are lower than the cumulative losses originally estimated by the FDIC at the time of acquisition. The clawback liability is estimated by discounting estimated future payments and is recorded in the Consolidated Balance Sheets as a payable to the FDIC under the relevant loss share agreements. As of March 31, 2016 and December 31, 2015, the estimated clawback liability was $128.2 million and $126.5 million, respectively.

BancShares and various subsidiaries have been named as defendants in legal actions arising from their normal business activities in which damages in various amounts are claimed. BancShares is also exposed to litigation risk relating to the prior business activities of banks from which assets were acquired and liabilities assumed in the various FDIC-assisted transactions. Although the amount of any ultimate liability with respect to such matters cannot be determined, in the opinion of management, any such liability will not have a material effect on BancShares’ consolidated financial statements.

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Derivatives

3 Months Ended

Mar. 31, 2016

Summary of Derivative Instruments [Abstract]

Derivatives

DERIVATIVES

At March 31, 2016, BancShares had an interest rate swap entered into during 2011 that qualifies as a cash flow hedge under GAAP. For all periods presented, the fair value of the outstanding derivative is included in other liabilities in the consolidated balance sheets, and the net change in fair value is included in the consolidated statements of cash flows under the caption net change in other liabilities.

The following table provides the notional amount of the interest rate swap and the fair value of the liability as of March 31, 2016 and December 31, 2015.

	March 31, 2016				December 31, 2015
(Dollars in thousands)	Notional  amount		Estimated fair value of liability		Notional  amount		Estimated fair value of liability
2011 interest rate swap hedging variable rate exposure on trust preferred securities 2011-2016	$	93,500	$	729	$	93,500	$	1,429

The interest rate swap is used for interest rate risk management purposes and converts variable-rate exposure on outstanding debt to a fixed rate. The interest rate swap has a notional amount of $93.5 million, representing the amount of variable rate trust preferred capital securities issued during 2006 and still outstanding at the swap inception date. The interest rate swap hedges interest payments through June 2016 and requires fixed-rate payments by BancShares at 5.50 percent in exchange for variable-rate payments of 175 basis points above the three-month LIBOR, which is equal to the interest paid to the holders of the trust preferred capital securities. Settlement of the swap occurs quarterly. The interest rate swap obligation did not meet the threshold to require pledged collateral to secure the obligation at March 31, 2016. At December 31, 2015, collateral with a fair value of $2.0 million was pledged to secure the existing obligation under the interest rate swap.

For cash flow hedges, the effective portion of the gain or loss due to changes in the fair value of the derivative hedging instrument is included in other comprehensive income, while the ineffective portion, representing the excess of the cumulative change in the fair value of the derivative over the cumulative change in expected future discounted cash flows on the hedged transaction, is recorded in the consolidated statement of income. BancShares’ interest rate swap has been fully effective since inception. Therefore, changes in the fair value of the interest rate swap have had no impact on net income. For the three months ended March 31, 2016 and 2015, BancShares recognized interest expense of $743 thousand and $826 thousand, respectively, resulting from incremental interest paid to the interest rate swap counterparty, none of which related to ineffectiveness.

BancShares monitors the credit risk of the interest rate swap counterparty.

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Accumulated Other Comprehensive Income (Loss)

3 Months Ended

Mar. 31, 2016

Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]

Accumulated Other Comprehensive Loss

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)

Accumulated other comprehensive income (loss) included the following as of March 31, 2016 and December 31, 2015:

	March 31, 2016									December 31, 2015
(Dollars in thousands)	Accumulated other comprehensive income (loss)			Deferred tax expense (benefit)			Accumulated other comprehensive income (loss), net of tax			Accumulated other comprehensive loss			Deferred tax benefit			Accumulated other comprehensive loss, net of tax
Unrealized gains (losses) on investment securities available for sale, net	$	38,900		$	14,866		$	24,034		$	(24,504	)	$	(9,379	)	$	(15,125	)
Unrealized loss on cash flow hedge	(729		)	(274		)	(455		)	(1,429		)	(537		)	(892		)
Funded status of defined benefit plans	(76,767		)	(29,364		)	(47,403		)	(78,419		)	(29,996		)	(48,423		)
Total	$	(38,596	)	$	(14,772	)	$	(23,824	)	$	(104,352	)	$	(39,912	)	$	(64,440	)

The following table highlights changes in accumulated other comprehensive (loss) income by component for the three months ended March 31, 2016 and March 31, 2015:

	Three months ended March 31, 2016
(Dollars in thousands)	Unrealized gains (losses) on available for sale securities1			Gains (losses) on cash flow hedges1			Defined benefit pension items1			Total
Beginning balance	$	(15,125	)	$	(892	)	$	(48,423	)	$	(64,440	)
Other comprehensive income before reclassifications	42,017			437			—			42,454
Amounts reclassified from accumulated other comprehensive (loss) income	(2,858		)	—			1,020			(1,838		)
Net current period other comprehensive income	39,159			437			1,020			40,616
Ending balance	$	24,034		$	(455	)	$	(47,403	)	$	(23,824	)
	Three months ended March 31, 2015
	Unrealized gains (losses) on available for sale securities1			Gains (losses) on cash flow hedges1			Defined benefit pension items1			Total
Beginning balance	$	5,098		$	(2,664	)	$	(55,415	)	$	(52,981	)
Other comprehensive income before reclassifications	18,602			354			—			18,956
Amounts reclassified from accumulated other comprehensive (loss) income	(3,149		)	—			1,763			(1,386		)
Net current period other comprehensive income	15,453			354			1,763			17,570
Ending balance	$	20,551		$	(2,310	)	$	(53,652	)	$	(35,411	)

¹ All amounts are net of tax. Amounts in parentheses indicate debits.

The following table presents the amounts reclassified from accumulated other comprehensive (loss) income and the line item affected in the statement where net income is presented for the three months ended March 31, 2016 and March 31, 2015:

(Dollars in thousands)	Three months ended March 31, 2016
Details about accumulated other comprehensive income (loss)	Amounts reclassified from accumulated other comprehensive income (loss)1			Affected line item in the statement where net income is presented
Unrealized gains and losses on available for sale securities	$	4,628		Securities gains
	(1,770		)	Income taxes
	$	2,858		Net income
Amortization of defined benefit pension items
Prior service costs	$	(52	)	Employee benefits
Actuarial losses	(1,600		)	Employee benefits
	(1,652		)	Employee benefits
	632			Income taxes
	$	(1,020	)	Net income
Total reclassifications for the period	$	1,838
	Three months ended March 31, 2015
Details about accumulated other comprehensive income (loss)	Amounts reclassified from accumulated other comprehensive income (loss)1			Affected line item in the statement where net income is presented
Unrealized gains and losses on available for sale securities	$	5,126		Securities gains
	(1,977		)	Income taxes
	$	3,149		Net income
Amortization of defined benefit pension items
Prior service costs	$	(53	)	Employee benefits
Actuarial losses	(2,833		)	Employee benefits
	(2,886		)	Employee benefits
	1,123			Income taxes
	$	(1,763	)	Net income
Total reclassifications for the period	$	1,386

¹ Amounts in parentheses indicate debits to profit/loss.

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Accounting Policies and Basis of Presentation Policies (Policies)

3 Months Ended

Mar. 31, 2016

Accounting Policies [Abstract]

Reclassification, Policy [Policy Text Block]

Reclassifications

In certain instances, amounts reported in prior years' consolidated financial statements have been reclassified to conform to the current financial statement presentation. Such reclassifications had no effect on previously reported shareholders' equity or net income.

Use of Estimates, Policy [Policy Text Block]

Use of Estimates in the Preparation of Financial Statements

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenues and expenses during the reporting periods. Actual results could differ from those estimates, and different assumptions in the application of these policies could result in material changes in BancShares' consolidated financial position, the consolidated results of operations or related disclosures. Material estimates that are particularly susceptible to significant change include:

• Allowance for loan and lease losses

• Fair value of financial instruments, including acquired assets and assumed liabilities

• Pension plan assumptions

• Cash flow estimates on purchased credit-impaired loans

• Receivable from and payable to the FDIC for loss share agreements

• Income tax assets, liabilities and expense

New Accounting Pronouncements, Policy [Policy Text Block]

Recently Adopted Accounting Pronouncements

Financial Accounting Standards Board (FASB) Accounting Standards Update (ASU) 2015-16, Business Combinations (Topic 805): Simplifying the Accounting for Measurement-Period Adjustments

This ASU eliminates the requirement to retrospectively account for adjustments made to provisional amounts recognized in a business combination and requires that an acquirer recognize adjustments to provisional amounts that are identified during the measurement period in the reporting period in which the adjustment amounts are determined. The effect on earnings of changes in depreciation, amortization, or other income effects, if any, as a result of the change to the provisional amounts must be calculated as if the accounting had been completed at the acquisition date.

The amendments in this ASU are effective for public business entities for fiscal years beginning after December 15, 2015, including interim periods within those fiscal years. The amendments in this ASU should be applied prospectively to adjustments to provisional amounts that occur after the effective date of this ASU with earlier application permitted for financial statements that have not been issued. We adopted the guidance effective in the first quarter of 2016. The initial adoption did not have an impact on our consolidated financial position or consolidated results of operations.

FASB ASU 2015-03, Interest–Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs

This ASU simplifies the presentation of debt issuance costs by requiring that debt issuance costs be presented in the balance sheet as a direct deduction from the carrying amount of debt liability, consistent with debt discounts or premiums. The recognition and measurement guidance for debt issuance costs are not affected by the amendments in this update.

This ASU is effective for fiscal years beginning after December 15, 2015 for public business entities, including interim periods within those fiscal years, and is to be applied retrospectively. We adopted the guidance effective in the first quarter of 2016. The initial adoption did not have an impact on our consolidated financial position or consolidated results of operations.

FASB ASU 2015-02, Consolidation (Topic 810): Amendments to the Consolidation Analysis

This ASU improves targeted areas of consolidation guidance for reporting organizations that are required to evaluate whether they should consolidate certain legal entities. In addition to reducing the number of consolidation models from four to two, the new standard places more emphasis on risk of loss when determining a controlling financial interest, reducing the frequency of the application of related-party guidance when determining a controlling financial interest in a variable interest entity (VIE), and changing consolidation conclusions for public and private companies in several industries that typically make use of limited partnerships or VIEs.

The amendments in this ASU are effective for fiscal years beginning after December 15, 2015 for public business entities, including interim periods within those fiscal years. We adopted the guidance effective in the first quarter of 2016. The initial adoption did not have an impact on our consolidated financial position or consolidated results of operations.

Recently Issued Accounting Pronouncements

FASB ASU 2016-07, Investments—Equity Method and Joint Ventures (Topic 323): Simplifying the Transition to the Equity Method of Accounting

This ASU eliminates the requirement that when an investment qualifies for use of the equity method as a result of an increase in the level of ownership interest or degree of influence, an investor must adjust the investment, results of operations, and retained earnings retroactively on a step-by-step basis as if the equity method had been in effect during all previous periods that the investment had been held. The ASU requires that the equity method investor add the cost of acquiring the additional interest in the investee to the current basis of the investor's previously held interest and adopt the equity method of accounting as of the date the investment becomes qualified for equity method accounting. Therefore, upon qualifying for the equity method of accounting, no retroactive adjustment of the investment is required. Further, the ASU requires that an entity that has an available-for-sale equity security that becomes qualified for the equity method of accounting recognizes through earnings, the unrealized gain or loss in accumulated other comprehensive income at the date the investment becomes qualified for use of the equity method.

The amendments in this ASU are effective for all entities for fiscal years beginning after December 15, 2016, including interim periods within those fiscal years. Early adoption is permitted. We are currently evaluating the impact of the new standard and will adopt the guidance during the first quarter of 2017.

FASB ASU 2016-06, Derivatives and Hedging (Topic 815): Contingent Put and Call Options in Debt Instruments

This ASU clarifies what steps are required when assessing whether the economic characteristics and risks of call (put) options are clearly and closely related to the economic characteristics and risks of their debt hosts, which is one of the criteria for bifurcating an embedded derivative. When a call (put) option is contingently exercisable, an entity does not have to assess whether the event that triggers the ability to exercise a call (put) option is related to interest rates or credit risks.

The amendments in the ASU are effective for public business entities for fiscal years beginning after December 15, 2016, including interim periods within those fiscal years. Early adoption is permitted. We will adopt the guidance during the first quarter of 2017. BancShares does not anticipate any effect on our consolidated financial position or consolidated results of options as a result of adoption.

FASB ASU 2016-02, Leases (Topic 842)

This ASU increases transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet and disclosing key information about leasing arrangements. The key difference between existing standards and this ASU is the requirement for lessees to recognize on their balance sheet all lease contracts with lease terms greater than 12 months, including operating leases. Both a right-of-use asset, representing the right to use the leased asset, and a lease liability, representing the contractual obligation, are required to be recognized on the balance sheet of the lessee at lease commencement. Further, this ASU requires lessees to classify leases as either operating or finance leases, which are substantially similar to the current operating and capital leases classifications. The distinction between these two classifications under the new standard does not relate to balance sheet treatment, but relates to treatment in the statements of income and cash flows. Lessor guidance remains largely unchanged with the exception of how a lessor determines the appropriate lease classification for each lease to better align the lessor guidance with revised lessee classification guidance.

The amendments in this ASU are effective for public business entities for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. Early adoption is permitted. We are currently evaluating the impact of the new standard and we will adopt during the first quarter of 2019.

FASB ASU 2016-01, Financial Instruments—Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities

This ASU addresses certain aspects of recognition, measurement, presentation and disclosure. The amendments in this ASU (1) require equity investments to be measured at fair value with changes in fair value recognized in net income; (2) simplify the impairment assessment of equity investments without readily determinable fair value; (3) require public business entities to use exit prices, rather than entry prices, when measuring fair value of financial instruments for disclosure purposes; (4) require separate presentation of financial assets and financial liabilities by measurement category and form of financial assets on the balance sheet or the accompanying notes to the financial statements; (5) eliminate the requirement to disclose the method(s) and significant assumptions used to estimate the fair value for financial instruments measured at amortized cost on the balance sheet; (6) require separate presentation in other comprehensive income of the portion of the total change in the fair value of a liability resulting from a change in the instrument-specific credit risk when the organization has elected to measure the liability at fair value in accordance with the fair value option for financial instruments; and (7) state that a valuation allowance on deferred tax assets related to available-for-sale securities should be evaluated in combination with other deferred tax assets.

The amendments in this ASU are effective for public business entities for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. The ASU only permits early adoption of the instrument-specific credit risk provision. We are currently evaluating the impact of the new standard and we will adopt during the first quarter of 2018.

FASB ASU 2014-09, Revenue from Contracts with Customers (Topic 606)

In May 2014, the FASB issued a standard on the recognition of revenue from contracts with customers with the core principle being for companies to recognize revenue to depict the transfer of goods or services to customers in amounts that reflect the consideration to which the company expects to be entitled in exchange for those goods or services. The new standard also results in enhanced disclosures about revenue, provides guidance for transactions that were not previously addressed comprehensively and improves guidance for multiple-element arrangements. In March 2016, the FASB issued ASU 2016-08, Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations, to improve the operability and understandability of the implementation guidance on principal versus agent considerations.

Per ASU 2015-14, Deferral of the Effective Date, this guidance was deferred and is effective for fiscal periods beginning after December 15, 2017, including interim reporting periods within that reporting period. Early adoption is permitted for fiscal periods beginning after December 15, 2016. We are currently evaluating the impact of the new standard and we will adopt during the first quarter of 2018 using one of two retrospective application methods.

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Business Combinations Business Combinations (Tables)

3 Months Ended

Mar. 31, 2016

Business Combinations [Abstract]

Schedule of assets acquired and liabilities assumed

The following table provides the identifiable assets acquired and liabilities assumed at their estimated fair values as of the acquisition date.

(Dollars in thousands)	As recorded by FCB
Assets
Cash and cash equivalents	$	4,545
Overnight investments	2,274
Investment securities	9,425
Loans	35,416
Other real estate owned	330
Intangible assets	240
Other assets	216
Total assets acquired	52,446
Liabilities
Deposits	59,206
Short-term borrowings	1,662
Other liabilities	74
Total liabilities assumed	60,942
Fair value of net liabilities assumed	(8,496		)
Cash received from FDIC	10,200
Gain on acquisition of NMSB	$	1,704

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Investments (Tables)

3 Months Ended

Mar. 31, 2016

Investments [Abstract]

Aggregate Values And Unrealized Gains And Losses Of Investment Securities

The amortized cost and fair value of investment securities classified as available for sale and held to maturity at March 31, 2016 and December 31, 2015, are as follows:

	March 31, 2016
(Dollars in thousands)	Cost		Gross unrealized gains		Gross unrealized losses		Fair value
Investment securities available for sale
U.S. Treasury	$	1,538,907	$	2,308	$	—	$	1,541,215
Government agency	355,488		669		—		356,157
Mortgage-backed securities	4,693,313		37,375		3,406		4,727,282
Equity securities	50,066		2,314		285		52,095
Other	10,615		—		75		10,540
Total investment securities available for sale	$	6,648,389	$	42,666	$	3,766	$	6,687,289
	December 31, 2015
	Cost		Gross unrealized gains		Gross unrealized losses		Fair value
U.S. Treasury	$	1,675,996	$	4	$	1,118	$	1,674,882
Government agency	498,804		230		374		498,660
Mortgage-backed securities	4,692,447		5,120		29,369		4,668,198
Equity securities	7,935		968		10		8,893
Other	10,615		45		—		10,660
Total investment securities available for sale	$	6,885,797	$	6,367	$	30,871	$	6,861,293
	March 31, 2016
	Cost		Gross unrealized gains		Gross unrealized losses		Fair value
Investment securities held to maturity
Mortgage-backed securities	$	194	$	9	$	—	$	203
	December 31, 2015
	Cost		Gross unrealized gains		Gross unrealized losses		Fair value
Mortgage-backed securities	$	255	$	10	$	—	$	265

Investment Securities Maturity Information

The following table provides the amortized cost and fair value by contractual maturity. Expected maturities will differ from contractual maturities on certain securities because borrowers and issuers may have the right to call or prepay obligations with or without prepayment penalties. Repayments of mortgage-backed securities are dependent on the repayments of the underlying loan balances. Equity securities do not have a stated maturity date.

	March 31, 2016				December 31, 2015
(Dollars in thousands)	Cost		Fair value		Cost		Fair value
Investment securities available for sale
Non-amortizing securities maturing in:
One year or less	$	1,554,483	$	1,556,414	$	1,255,714	$	1,255,094
One through five years	339,912		340,958		919,086		918,448
Five through 10 years	8,500		8,500		8,500		8,500
Over 10 years	2,115		2,040		2,115		2,160
Mortgage-backed securities	4,693,313		4,727,282		4,692,447		4,668,198
Equity securities	50,066		52,095		7,935		8,893
Total investment securities available for sale	$	6,648,389	$	6,687,289	$	6,885,797	$	6,861,293
Investment securities held to maturity
Mortgage-backed securities held to maturity	$	194	$	203	$	255	$	265

Securities Gains (Losses)

For each period presented, securities gains (losses) included the following:

	Three months ended March 31
(Dollars in thousands)	2016			2015
Gross gains on sales of investment securities available for sale	$	4,933		$	5,135
Gross losses on sales of investment securities available for sale	(305		)	(9		)
Total securities gains	$	4,628		$	5,126

Investment Securities With Unrealized Losses

The following table provides information regarding securities with unrealized losses as of March 31, 2016 and December 31, 2015.

	March 31, 2016
	Less than 12 months				12 months or more				Total
(Dollars in thousands)	Fair value		Unrealized losses		Fair value		Unrealized losses		Fair value		Unrealized losses
Investment securities available for sale:
Mortgage-backed securities	$	417,711	$	1,071	$	291,021	$	2,335	$	708,732	$	3,406
Equity securities	13,037		285		—		—		13,037		285
Other	2,040		75		—		—		2,040		75
Total	$	432,788	$	1,431	$	291,021	$	2,335	$	723,809	$	3,766
	December 31, 2015
	Less than 12 months				12 months or more				Total
	Fair value		Unrealized losses		Fair value		Unrealized losses		Fair value		Unrealized losses
Investment securities available for sale:
U.S. Treasury	$	1,539,637	$	1,118	$	—	$	—	$	1,539,637	$	1,118
Government agency	229,436		374		—		—		229,436		374
Mortgage-backed securities	3,570,470		23,275		280,126		6,094		3,850,596		29,369
Equity securities	728		10		—		—		728		10
Total	$	5,340,271	$	24,777	$	280,126	$	6,094	$	5,620,397	$	30,871

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Loans and Leases (Tables)

3 Months Ended

Mar. 31, 2016

Loans and Leases Receivable Disclosure [Abstract]

Loans And Leases Outstanding

Loans and leases outstanding included the following at March 31, 2016 and December 31, 2015:

(Dollars in thousands)	March 31, 2016		December 31, 2015
Non-PCI loans and leases:
Commercial:
Construction and land development	$	626,311	$	620,352
Commercial mortgage	8,353,631		8,274,548
Other commercial real estate	324,858		321,021
Commercial and industrial	2,389,946		2,368,958
Lease financing	751,292		730,778
Other	343,877		314,832
Total commercial loans	12,789,915		12,630,489
Noncommercial:
Residential mortgage	2,718,208		2,695,985
Revolving mortgage	2,521,902		2,523,106
Construction and land development	213,232		220,073
Consumer	1,228,545		1,219,821
Total noncommercial loans	6,681,887		6,658,985
Total non-PCI loans and leases	19,471,802		19,289,474
PCI loans:
Commercial:
Construction and land development	32,799		33,880
Commercial mortgage	526,776		525,468
Other commercial real estate	18,050		17,076
Commercial and industrial	14,742		15,182
Other	1,860		2,008
Total commercial loans	594,227		593,614
Noncommercial:
Residential mortgage	298,662		302,158
Revolving mortgage	50,574		52,471
Consumer	2,424		2,273
Total noncommercial loans	351,660		356,902
Total PCI loans	945,887		950,516
Total loans and leases	$	20,417,689	$	20,239,990

Composition Of The Loans And Leases Outstanding By Credit Quality Indicator

Non-PCI loans and leases outstanding at March 31, 2016 and December 31, 2015 by credit quality indicator are provided below:

	March 31, 2016
(Dollars in thousands)	Non-PCI commercial loans and leases
Grade:	Construction  and land development		Commercial mortgage		Other commercial real estate		Commercial  and industrial		Lease financing		Other		Total non-PCI commercial loans and leases
Pass	$	622,312	$	8,102,908	$	321,375	$	2,241,626	$	744,585	$	341,300	$	12,374,106
Special mention	1,926		97,425		1,294		14,003		3,698		1,334		119,680
Substandard	2,073		149,651		1,030		20,070		2,639		1,243		176,706
Doubtful	—		458		—		399		46		—		903
Ungraded	—		3,189		1,159		113,848		324		—		118,520
Total	$	626,311	$	8,353,631	$	324,858	$	2,389,946	$	751,292	$	343,877	$	12,789,915
	December 31, 2015
	Non-PCI commercial loans and leases
	Construction  and land development		Commercial mortgage		Other commercial real estate		Commercial  and industrial		Lease financing		Other		Total non-PCI commercial loans and leases
Pass	$	611,314	$	8,024,831	$	318,187	$	2,219,606	$	719,338	$	311,401	$	12,204,677
Special mention	5,191		100,220		475		19,361		4,869		1,905		132,021
Substandard	3,847		146,071		959		21,322		6,375		1,526		180,100
Doubtful	—		599		—		408		169		—		1,176
Ungraded	—		2,827		1,400		108,261		27		—		112,515
Total	$	620,352	$	8,274,548	$	321,021	$	2,368,958	$	730,778	$	314,832	$	12,630,489

	March 31, 2016
	Non-PCI noncommercial loans and leases
(Dollars in thousands)	Residential mortgage		Revolving mortgage		Construction and land development		Consumer		Total non-PCI noncommercial loans and leases
Current	$	2,673,451	$	2,501,519	$	208,944	$	1,220,091	$	6,604,005
30-59 days past due	24,701		11,219		3,121		5,339		44,380
60-89 days past due	7,041		2,396		325		1,722		11,484
90 days or greater past due	13,015		6,768		842		1,393		22,018
Total	$	2,718,208	$	2,521,902	$	213,232	$	1,228,545	$	6,681,887
	December 31, 2015
	Non-PCI noncommercial loans and leases
	Residential mortgage		Revolving mortgage		Construction and land development		Consumer		Total non-PCI noncommercial loans and leases
Current	$	2,651,209	$	2,502,065	$	214,555	$	1,210,832	$	6,578,661
30-59 days past due	23,960		11,706		3,211		5,545		44,422
60-89 days past due	7,536		3,704		669		1,822		13,731
90 days or greater past due	13,280		5,631		1,638		1,622		22,171
Total	$	2,695,985	$	2,523,106	$	220,073	$	1,219,821	$	6,658,985

PCI loans outstanding at March 31, 2016 and December 31, 2015 by credit quality indicator are provided below:

	March 31, 2016
(Dollars in thousands)	PCI commercial loans
Grade:	Construction and land development		Commercial mortgage		Other commercial real estate		Commercial and industrial		Other		Total PCI commercial loans
Pass	$	12,797	$	261,904	$	8,500	$	8,595	$	623	$	292,419
Special mention	1,781		87,801		59		548		—		90,189
Substandard	14,056		159,083		9,081		4,292		1,237		187,749
Doubtful	4,165		17,656		—		1,240		—		23,061
Ungraded	—		332		410		67		—		809
Total	$	32,799	$	526,776	$	18,050	$	14,742	$	1,860	$	594,227
	December 31, 2015
	PCI commercial loans
	Construction and land development		Commercial mortgage		Other commercial real estate		Commercial and industrial		Other		Total PCI commercial loans
Pass	$	14,710	$	262,579	$	7,366	$	9,302	$	706	$	294,663
Special mention	758		87,870		60		937		—		89,625
Substandard	14,131		163,801		9,229		4,588		1,302		193,051
Doubtful	4,281		10,875		—		282		—		15,438
Ungraded	—		343		421		73		—		837
Total	$	33,880	$	525,468	$	17,076	$	15,182	$	2,008	$	593,614

	March 31, 2016
	PCI noncommercial loans
(Dollars in thousands)	Residential mortgage		Revolving mortgage		Consumer		Total PCI noncommercial loans
Current	$	261,230	$	44,401	$	2,254	$	307,885
30-59 days past due	10,307		1,544		123		11,974
60-89 days past due	3,191		1,306		45		4,542
90 days or greater past due	23,934		3,323		2		27,259
Total	$	298,662	$	50,574	$	2,424	$	351,660
	December 31, 2015
	PCI noncommercial loans
	Residential mortgage		Revolving mortgage		Consumer		Total PCI noncommercial loans
Current	$	257,207	$	47,901	$	1,981	$	307,089
30-59 days past due	12,318		1,127		86		13,531
60-89 days past due	4,441		501		132		5,074
90 days or greater past due	28,192		2,942		74		31,208
Total	$	302,158	$	52,471	$	2,273	$	356,902

Aging Of The Outstanding Loans And Leases By Class Excluding Loans Impaired At Acquisition Date

The aging of the outstanding non-PCI loans and leases, by class, at March 31, 2016 and December 31, 2015 is provided in the table below.

The calculation of days past due begins on the day after payment is due and includes all days through which all required interest or principal has not been paid. Loans and leases 30 days or less past due are considered current as various grace periods allow borrowers to make payments within a stated period after the due date and still remain in compliance with the loan agreement.

	March 31, 2016
(Dollars in thousands)	30-59 days past due		60-89 days past due		90 days or greater		Total past due		Current		Total loans and leases
Non-PCI loans and leases:
Construction and land development - commercial	$	1,039	$	9	$	312	$	1,360	$	624,951	$	626,311
Commercial mortgage	14,243		1,817		17,637		33,697		8,319,934		8,353,631
Other commercial real estate	1,144		248		27		1,419		323,439		324,858
Commercial and industrial	7,874		2,049		1,194		11,117		2,378,829		2,389,946
Lease financing	712		202		44		958		750,334		751,292
Residential mortgage	24,701		7,041		13,015		44,757		2,673,451		2,718,208
Revolving mortgage	11,219		2,396		6,768		20,383		2,501,519		2,521,902
Construction and land development - noncommercial	3,121		325		842		4,288		208,944		213,232
Consumer	5,339		1,722		1,393		8,454		1,220,091		1,228,545
Other	107		—		333		440		343,437		343,877
Total non-PCI loans and leases	$	69,499	$	15,809	$	41,565	$	126,873	$	19,344,929	$	19,471,802
	December 31, 2015
	30-59 days past due		60-89 days past due		90 days or greater		Total past due		Current		Total loans and leases
Non-PCI loans and leases:
Construction and land development - commercial	$	987	$	283	$	463	$	1,733	$	618,619	$	620,352
Commercial mortgage	13,023		3,446		14,495		30,964		8,243,584		8,274,548
Other commercial real estate	884		—		142		1,026		319,995		321,021
Commercial and industrial	2,133		1,079		1,780		4,992		2,363,966		2,368,958
Lease financing	2,070		2		164		2,236		728,542		730,778
Residential mortgage	23,960		7,536		13,280		44,776		2,651,209		2,695,985
Revolving mortgage	11,706		3,704		5,631		21,041		2,502,065		2,523,106
Construction and land development - noncommercial	3,211		669		1,638		5,518		214,555		220,073
Consumer	5,545		1,822		1,622		8,989		1,210,832		1,219,821
Other	3		164		134		301		314,531		314,832
Total non-PCI loans and leases	$	63,522	$	18,705	$	39,349	$	121,576	$	19,167,898	$	19,289,474

Recorded Investment, By Class, In Loans And Leases On Nonaccrual Status And Loans And Leases Greater Than 90 Days Past Due And Still Accruing

The recorded investment, by class, in loans and leases on nonaccrual status, and loans and leases greater than 90 days past due and still accruing at March 31, 2016 and December 31, 2015 for non-PCI loans and leases, were as follows:

	March 31, 2016				December 31, 2015
(Dollars in thousands)	Nonaccrual loans and leases		Loans and leases > 90 days and accruing		Nonaccrual loans and leases		Loans and leases > 90 days and accruing
Non-PCI loans and leases:
Construction and land development - commercial	$	534	$	23	$	425	$	273
Commercial mortgage	35,861		2,671		42,116		242
Other commercial real estate	134		—		239		—
Commercial and industrial	4,127		680		6,235		953
Lease financing	254		—		389		—
Residential mortgage	31,262		561		29,977		838
Revolving mortgage	14,159		—		12,704		—
Construction and land development - noncommercial	2,224		—		2,164		—
Consumer	1,632		792		1,472		1,007
Other	268		155		133		2
Total non-PCI loans and leases	$	90,455	$	4,882	$	95,854	$	3,315

Changes In Carrying Value Of PCI Loans

The recorded fair values of PCI loans acquired in the NMSB acquisition as of the acquisition date were as follows:

(Dollars in thousands)
Commercial:
Construction and land development	$	139
Commercial mortgage	25,237
Other commercial real estate	1,479
Commercial and industrial	1,520
Total commercial loans	28,375
Noncommercial:
Residential mortgage	6,128
Revolving mortgage	234
Consumer	679
Total noncommercial loans	7,041
Total PCI loans and leases	$	35,416

The following table provides changes in the carrying value of all purchased credit-impaired loans during the three months ended March 31, 2016 and March 31, 2015:

(Dollars in thousands)	2016			2015
Balance at January 1	$	950,516		$	1,186,498
Fair value of acquired loans	35,416			154,496
Accretion	21,398			25,067
Payments received and other changes, net	(61,443		)	(113,516		)
Balance at March 31	$	945,887		$	1,252,545
Unpaid principal balance at March 31	$	1,665,896		$	2,092,936

Schedule of Contractually Required Payments Including Principal and Interest Expected Cash Flows to be Collected and Fair Values [Table Text Block]

The following table relates to PCI loans acquired in the NMSB acquisition and summarizes the contractually required payments, which include principal and interest, expected cash flows to be collected, and the fair value of PCI loans and leases at the acquisition date.

(Dollars in thousands)
Contractually required payments	$	51,098
Cash flows expected to be collected	$	41,592
Fair value of loans at acquisition	$	35,416

Changes In Carrying Value of Accretable Yield for PCI Loans

The following table documents changes to the amount of accretable yield for the first three months of 2016 and 2015.

(Dollars in thousands)	2016			2015
Balance at January 1	$	343,856		$	418,160
Additions from acquisitions	6,176			55,186
Accretion	(21,398		)	(25,067		)
Reclassifications from nonaccretable difference	9,905			1,294
Changes in expected cash flows that do not affect nonaccretable difference	4,418			(27,287		)
Balance at March 31	$	342,957		$	422,286

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Allowance for Loan and Lease Losses (Tables)

3 Months Ended

Mar. 31, 2016

Loans and Leases Receivable, Allowance [Abstract]

Allowance for Loan and Lease Losses

The following tables present the activity in the ALLL for non-PCI loan and lease losses by loan class for the three months ended March 31, 2016 and March 31, 2015:

	Three months ended March 31, 2016
(Dollars in thousands)	Construction and land development - commercial			Commercial mortgage			Other commercial real estate			Commercial and industrial			Lease financing			Other			Residential mortgage			Revolving mortgage			Construction and land development - non- commercial			Consumer			Total
Non-PCI Loans
Allowance for loan and lease losses:
Balance at January 1	$	16,288		$	69,896		$	2,168		$	43,116		$	5,524		$	1,855		$	14,105		$	15,971		$	1,485		$	19,496		$	189,904
Provision	943			394			(104		)	2,201			(282		)	(328		)	776			1,158			87			1,995			6,840
Charge-offs	(426		)	(90		)	—			(1,317		)	—			(71		)	(174		)	(1,036		)	—			(3,108		)	(6,222		)
Recoveries	80			256			143			479			180			321			20			32			3			990			2,504
Balance at March 31	$	16,885		$	70,456		$	2,207		$	44,479		$	5,422		$	1,777		$	14,727		$	16,125		$	1,575		$	19,373		$	193,026
	Three months ended March 31, 2015
	Construction and land development - commercial			Commercial mortgage			Other commercial real estate			Commercial and industrial			Lease financing			Other			Residential mortgage			Revolving mortgage			Construction and land development - non- commercial			Consumer			Total
Balance at January 1	$	11,961		$	85,189		$	732		$	30,727		$	4,286		$	3,184		$	10,661		$	18,650		$	892		$	16,555		$	182,837
Provision	1,103			(3,679		)	458			7,546			11			(218		)	813			(462		)	118			2,966			8,656
Charge-offs	(18		)	(233		)	(169		)	(1,713		)	(15		)	—			(284		)	(793		)	(22		)	(2,783		)	(6,030		)
Recoveries	62			761			10			394			11			15			138			134			68			878			2,471
Balance at March 31	$	13,108		$	82,038		$	1,031		$	36,954		$	4,293		$	2,981		$	11,328		$	17,529		$	1,056		$	17,616		$	187,934

The following tables provide information on non-PCI impaired loans and leases, exclusive of loans and leases evaluated collectively as a homogeneous group, as of March 31, 2016 and December 31, 2015 including interest income recognized in the period during which the loans and leases were considered impaired.

	March 31, 2016
(Dollars in thousands)	With a recorded allowance		With no recorded allowance		Total		Unpaid principal balance		Related allowance recorded
Non-PCI impaired loans and leases:
Construction and land development - commercial	$	1,356	$	1,891	$	3,247	$	4,602	$	83
Commercial mortgage	37,464		50,984		88,448		97,320		3,467
Other commercial real estate	297		121		418		858		282
Commercial and industrial	5,356		8,364		13,720		16,692		650
Lease financing	1,304		224		1,528		1,577		191
Other	898		62		960		1,037		49
Residential mortgage	10,001		14,024		24,025		24,989		1,203
Revolving mortgage	1,059		5,535		6,594		8,049		310
Construction and land development - noncommercial	416		—		416		416		27
Consumer	962		362		1,324		1,401		514
Total non-PCI impaired loans and leases	$	59,113	$	81,567	$	140,680	$	156,941	$	6,776
	December 31, 2015
(Dollars in thousands)	With a recorded allowance		With no recorded allowance		Total		Unpaid principal balance		Related allowance recorded
Non-PCI impaired loans and leases:
Construction and land development - commercial	$	1,623	$	1,471	$	3,094	$	4,428	$	123
Commercial mortgage	41,793		53,314		95,107		103,763		3,370
Other commercial real estate	305		122		427		863		289
Commercial and industrial	8,544		9,366		17,910		21,455		1,118
Lease financing	1,651		104		1,755		1,956		213
Other	—		1,183		1,183		1,260		—
Residential mortgage	10,097		12,889		22,986		25,043		1,212
Revolving mortgage	1,105		4,778		5,883		7,120		299
Construction and land development - noncommercial	693		91		784		784		49
Consumer	1,050		188		1,238		1,294		527
Total non-PCI impaired loans and leases	$	66,861	$	83,506	$	150,367	$	167,966	$	7,200

The following tables show the average non-PCI impaired loan balance and the interest income recognized by loan class for the three months ended March 31, 2016 and March 31, 2015:

	Three months ended March 31, 2016				Three months ended March 31, 2015
(Dollars in thousands)	Average balance		Interest income recognized		Average balance		Interest income recognized
Non-PCI impaired loans and leases:
Construction and land development - commercial	$	3,164	$	41	$	3,052	$	35
Commercial mortgage	92,945		766		80,553		769
Other commercial real estate	423		5		551		1
Commercial and industrial	15,551		151		14,229		103
Lease financing	1,657		20		1,590		18
Other	1,072		14		1,990		—
Residential mortgage	23,500		172		15,364		125
Revolving mortgage	6,309		32		2,986		16
Construction and land development - noncommercial	556		6		658		7
Consumer	1,265		18		1,022		19
Total non-PCI impaired loans and leases	$	146,442	$	1,225	$	121,995	$	1,093

The following tables show the activity in the allowance for PCI loan and lease losses by loan class for the three months ended March 31, 2016 and March 31, 2015.

	Three months ended March 31, 2016
(Dollars in thousands)	Construction and land development - commercial			Commercial mortgage			Other commercial real estate			Commercial and industrial			Residential mortgage			Revolving mortgage			Construction and land development - noncommercial			Consumer and other			Total
PCI Loans
Allowance for loan and lease losses:
Balance at January 1	$	1,082		$	7,838		$	773		$	445		$	5,398		$	523		$	—		$	253		$	16,312
Provision	(349		)	(980		)	2			(220		)	(347		)	(108		)	—			5			(1,997		)
Charge-offs	—			(108		)	(5		)	—			(371		)	—			—			(74		)	(558		)
Recoveries	—			—			—			—			—			—			—			—			—
Balance at March 31	$	733		$	6,750		$	770		$	225		$	4,680		$	415		$	—		$	184		$	13,757
	Three months ended March 31, 2015
(Dollars in thousands)	Construction and land development - commercial			Commercial mortgage			Other commercial real estate			Commercial and industrial			Residential mortgage			Revolving mortgage			Construction and land development - noncommercial			Consumer and other			Total
Balance at January 1	$	150		$	10,135		$	75		$	1,240		$	5,820		$	3,999		$	183		$	27		$	21,629
Provision	191			(925		)	119			(1,031		)	(863		)	(655		)	(152		)	452			(2,864		)
Charge-offs	—			(334		)	—			(198		)	(85		)	(73		)	—			(456		)	(1,146		)
Recoveries	—			—			—			—			—			—			—			—			—
Balance at March 31	$	341		$	8,876		$	194		$	11		$	4,872		$	3,271		$	31		$	23		$	17,619

Allocation of Allowance for Loan and Lease Losses

The following tables show the ending balances of PCI loans and leases and related allowance by class of loans as of March 31, 2016 and December 31, 2015:

	March 31, 2016
(Dollars in thousands)	Construction and land development - commercial		Commercial mortgage		Other commercial real estate		Commercial and industrial		Residential mortgage		Revolving mortgage		Consumer and other		Total
ALLL for loans and leases acquired with deteriorated credit quality	$	733	$	6,750	$	770	$	225	$	4,680	$	415	$	184	$	13,757
Loans and leases acquired with deteriorated credit quality	32,799		526,776		18,050		14,742		298,662		50,574		4,284		945,887
	December 31, 2015
(Dollars in thousands)	Construction and land development - commercial		Commercial mortgage		Other commercial real estate		Commercial and industrial		Residential mortgage		Revolving mortgage		Consumer and other		Total
ALLL for loans and leases acquired with deteriorated credit quality	$	1,082	$	7,838	$	773	$	445	$	5,398	$	523	$	253	$	16,312
Loans and leases acquired with deteriorated credit quality	33,880		525,468		17,076		15,182		302,158		52,471		4,281		950,516

The following tables present the allowance for non-PCI loan losses and the recorded investment in loans, by loan class, based on impairment method as of March 31, 2016 and December 31, 2015:

	March 31, 2016
(Dollars in thousands)	Construction and land development - commercial		Commercial mortgage		Other commercial real estate		Commercial and industrial		Lease financing		Other		Residential mortgage		Revolving mortgage		Construction and land development - non-commercial		Consumer		Total
Allowance for loan and lease losses:
ALLL for loans and leases individually evaluated for impairment	$	83	$	3,467	$	282	$	650	$	191	$	49	$	1,203	$	310	$	27	$	514	$	6,776
ALLL for loans and leases collectively evaluated for impairment	16,802		66,989		1,925		43,829		5,231		1,728		13,524		15,815		1,548		18,859		186,250
Total allowance for loan and lease losses	$	16,885	$	70,456	$	2,207	$	44,479	$	5,422	$	1,777	$	14,727	$	16,125	$	1,575	$	19,373	$	193,026
Loans and leases:
Loans and leases individually evaluated for impairment	$	3,247	$	88,448	$	418	$	13,720	$	1,528	$	960	$	24,025	$	6,594	$	416	$	1,324	$	140,680
Loans and leases collectively evaluated for impairment	623,064		8,265,183		324,440		2,376,226		749,764		342,917		2,694,183		2,515,308		212,816		1,227,221		19,331,122
Total loan and leases	$	626,311	$	8,353,631	$	324,858	$	2,389,946	$	751,292	$	343,877	$	2,718,208	$	2,521,902	$	213,232	$	1,228,545	$	19,471,802
	December 31, 2015
(Dollars in thousands)	Construction and land development - commercial		Commercial mortgage		Other commercial real estate		Commercial and industrial		Lease financing		Other		Residential mortgage		Revolving mortgage		Construction and land development - non-commercial		Consumer		Total
Allowance for loan and lease losses:
ALLL for loans and leases individually evaluated for impairment	$	123	$	3,370	$	289	$	1,118	$	213	$	—	$	1,212	$	299	$	49	$	527	$	7,200
ALLL for loans and leases collectively evaluated for impairment	16,165		66,526		1,879		41,998		5,311		1,855		12,893		15,672		1,436		18,969		182,704
Total allowance for loan and lease losses	$	16,288	$	69,896	$	2,168	$	43,116	$	5,524	$	1,855	$	14,105	$	15,971	$	1,485	$	19,496	$	189,904
Loans and leases:
Loans and leases individually evaluated for impairment	$	3,094	$	95,107	$	427	$	17,910	$	1,755	$	1,183	$	22,986	$	5,883	$	784	$	1,238	$	150,367
Loans and leases collectively evaluated for impairment	617,258		8,179,441		320,594		2,351,048		729,023		313,649		2,672,999		2,517,223		219,289		1,218,583		19,139,107
Total loan and leases	$	620,352	$	8,274,548	$	321,021	$	2,368,958	$	730,778	$	314,832	$	2,695,985	$	2,523,106	$	220,073	$	1,219,821	$	19,289,474

Troubled Debt Restructurings on Financing Receivables

The following table provides a summary of total TDRs by accrual status.

	March 31, 2016						December 31, 2015
(Dollars in thousands)	Accruing		Nonaccruing		Total		Accruing		Nonaccruing		Total
Commercial loans
Construction and land development - commercial	$	3,637	$	268	$	3,905	$	3,624	$	257	$	3,881
Commercial mortgage	66,385		17,588		83,973		65,812		18,728		84,540
Other commercial real estate	1,614		84		1,698		1,751		89		1,840
Commercial and industrial	8,139		783		8,922		8,833		3,341		12,174
Lease	1,136		46		1,182		1,191		169		1,360
Other	960		—		960		1,183		—		1,183
Total commercial TDRs	81,871		18,769		100,640		82,394		22,584		104,978
Noncommercial
Residential mortgage	26,685		6,546		33,231		25,427		7,129		32,556
Revolving mortgage	3,624		2,179		5,803		3,600		1,705		5,305
Construction and land development - noncommercial	416		—		416		784		—		784
Consumer and other	1,133		174		1,307		1,091		129		1,220
Total noncommercial TDRs	31,858		8,899		40,757		30,902		8,963		39,865
Total TDRs	$	113,729	$	27,668	$	141,397	$	113,296	$	31,547	$	144,843

The majority of TDRs are included in the special mention, substandard or doubtful grading categories. When a restructured loan subsequently defaults, it is evaluated and downgraded if appropriate. The more severely graded the loan, the lower the estimated expected cash flows and the greater the allowance recorded. Further, TDRs over $500,000 and graded substandard or lower are evaluated individually for impairment through a review of collateral values or analysis of cash flows.

The following table shows the accrual status of non-PCI and PCI TDRs.

(Dollars in thousands)	March 31, 2016		December 31, 2015
Accruing TDRs:
PCI	$	29,410	$	29,231
Non-PCI	84,319		84,065
Total accruing TDRs	113,729		113,296
Nonaccruing TDRs:
PCI	923		1,420
Non-PCI	26,745		30,127
Total nonaccruing TDRs	27,668		31,547
All TDRs:
PCI	30,333		30,651
Non-PCI	111,064		114,192
Total TDRs	$	141,397	$	144,843

	Three months ended March 31, 2016						Three months ended March 31, 2015
	All restructurings			Restructurings with payment default			All restructurings			Restructurings with payment default
(Dollars in thousands)	Number of Loans	Recorded investment at period end		Number of Loans	Recorded investment at period end		Number of Loans	Recorded investment at period end		Number of Loans	Recorded investment at period end
Non-PCI loans and leases
Interest only period provided
Commercial mortgage	1	$	252	1	$	252	—	$	—	—	$	—
Commercial and industrial	—	—		—	—		1	3,796		1	3,796
Total interest only	1	252		1	252		1	3,796		1	3,796
Loan term extension
Construction and land development - commercial	1	404		—	—		1	220		1	220
Commercial mortgage	1	—		—	—		3	535		—	—
Revolving mortgage	—	—		—	—		1	10		—	—
Residential mortgage	1	34		—	—		—	—		—	—
Consumer	—	—		—	—		1	5		—	—
Total loan term extension	3	438		—	—		6	770		1	220
Below market interest rate
Construction and land development - commercial	1	18		1	18		2	47		—	—
Commercial mortgage	10	1,422		4	511		9	3,541		2	733
Commercial and industrial	3	12		—	—		3	172		—	—
Residential mortgage	46	3,288		13	841		23	708		2	45
Revolving mortgage	—	—		—	—		2	18		—	—
Construction and land development - noncommercial	—	—		—	—		2	396		—	—
Consumer	2	73		—	—		3	34		—	—
Other	—	—		—	—		1	1,950		—	—
Total below market interest rate	62	4,813		18	1,370		45	6,866		4	778
Discharged from bankruptcy
Construction and land development - commercial	—	—		1	16		—	—		—	—
Residential mortgage	1	144		—	—		2	68		—	—
Revolving mortgage	8	347		8	277		5	218		2	147
Consumer	7	68		4	59		—	—		—	—
Total discharged from bankruptcy	16	559		13	352		7	286		2	147
Total non-PCI restructurings	82	$	6,062	32	$	1,974	59	$	11,718	8	$	4,941

	Three months ended March 31, 2016						Three months ended March 31, 2015
	All restructurings			Restructurings with payment default			All restructurings			Restructurings with payment default
(Dollars in thousands)	Number of loans	Recorded investment at period end		Number of loans	Recorded investment at period end		Number of loans	Recorded investment at period end		Number of loans	Recorded investment at period end
PCI loans
Below market interest rate
Construction and land development - commercial	1	$	14	—	$	—	—	$	—	—	$	—
Commercial mortgage	3	2,016		—	—		—	—		—	—
Commercial and industrial	—	—		—	—		—	—		1	65
Residential mortgage	—	—		—	—		7	470		—	—
Total below market interest rate	4	2,030		—	—		7	470		1	65
Total PCI restructurings	4	$	2,030	—	$	—	7	$	470	1	$	65

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Other Real Estate Owned (Tables)

3 Months Ended

Mar. 31, 2016

Banking and Thrift [Abstract]

Changes in other real estate owned

The following table explains changes in other real estate owned during the three months ended March 31, 2016 and March 31, 2015.

(Dollars in thousands)	Covered			Noncovered			Total
Balance at December 31, 2014	$	22,982		$	70,454		$	93,436
Additions	4,244			17,084			21,328
Sales	(8,970		)	(13,573		)	(22,543		)
Writedowns	(954		)	(1,275		)	(2,229		)
Balance at March 31, 2015	$	17,302		$	72,690		$	89,992
Balance at December 31, 2015	$	6,817		$	58,742		$	65,559
Additions	3,936			6,044			9,980
Additions acquired in the North Milwaukee State Bank acquisition	—			330			330
Sales	(523		)	(7,547		)	(8,070		)
Writedowns	(496		)	(2,235		)	(2,731		)
Balance at March 31, 2016	$	9,734		$	55,334		$	65,068

At March 31, 2016 and December 31, 2015, BancShares had $14.9 million and $16.1 million, respectively, of foreclosed residential real estate property in OREO. The recorded investment in consumer mortgage loans collateralized by residential real estate property in the process of foreclosure was $17.6 million and $15.6 million at March 31, 2016 and December 31, 2015, respectively.

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FDIC Loss Share Receivable (Tables)

3 Months Ended

Mar. 31, 2016

FDIC Loss Share Receivable [Abstract]

Changes in Receivable From FDIC

The following table provides changes in the receivable from the FDIC for the three months ended March 31, 2016 and March 31, 2015.

	Three months ended March 31
(Dollars in thousands)	2016			2015
Beginning balance	$	4,054		$	28,701
Amortization	(2,375		)	(5,031		)
Net cash payments to FDIC	9,871			5,762
Post-acquisition adjustments	(4,076		)	(8,092		)
Ending balance	$	7,474		$	21,340

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Mortgage Servicing Rights (Tables)

3 Months Ended

Mar. 31, 2016

Mortgage Servicing Rights [Abstract]

Mortgage servicing rights

Our portfolio of residential mortgage loans serviced for third parties was $2.20 billion and $2.15 billion as of March 31, 2016 and December 31, 2015, respectively.  These loans were originated by BancShares and sold to third parties on a non-recourse basis with servicing rights retained.  These retained servicing rights are recorded as a servicing asset on the Consolidated Balance Sheets and are initially recorded at fair value.

The activity of the servicing asset for the three months ended March 31, 2016 and 2015 is presented in the following table:

	Three months ended March 31
(Dollars in thousands)	2016			2015
Beginning balance	$	19,351		$	16,688
Servicing rights originated	977			662
Amortization	(1,268		)	(852		)
Valuation allowance provision	(1,874		)	(62		)
Ending balance	$	17,186		$	16,436

Mortgage servicing rights valuation allowance

The following table presents the activity in the servicing asset valuation allowance for the three months ended March 31, 2016 and 2015:

	Three months ended March 31
(Dollars in thousands)	2016		2015
Beginning balance	$	95	$	850
Valuation allowance provision	1,874		62
Ending balance	$	1,969	$	912

Mortgage servicing rights economic assumptions

Valuation of mortgage servicing rights is performed using a pooling methodology. Similar loans are pooled together and evaluated on a discounted earnings basis to determine the present value of future earnings. Key economic assumptions used to value mortgage servicing rights as of March 31, 2016 and December 31, 2015 were as follows:

	March 31, 2016			December 31, 2015
Discount rate - conventional fixed loans	8.77		%	9.31		%
Discount rate - all loans excluding conventional fixed loans	9.77		%	10.31		%
Weighted average constant prepayment rate	13.32		%	11.01		%
Weighted average cost to service a loan	$	62.75		$	56.61

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Repurchase Agreements (Tables)

3 Months Ended

Mar. 31, 2016

Repurchase Agreements [Abstract]

Schedule of Repurchase Agreements

The remaining contractual maturity of the securities sold under agreements to repurchase by class of collateral pledged included in the Consolidated Balance Sheets as of March 31, 2016 and December 31, 2015 is presented in the following tables.

	March 31, 2016
	Remaining Contractual Maturity of the Agreements
(Dollars in thousands)	Overnight and continuous		Up to 30 Days		30-90 Days		Greater than 90 Days		Total
Repurchase agreements
U.S. Treasury	$	686,685	$	—	$	—	$	25,720	$	712,405
Government agency	—		—		—		4,280		4,280
Total borrowings	$	686,685	$	—	$	—	$	30,000	$	716,685
Gross amount of recognized liabilities for repurchase agreements									$	716,685
	December 31, 2015
	Remaining Contractual Maturity of the Agreements
	Overnight and continuous		Up to 30 Days		30-90 Days		Greater than 90 Days		Total
Repurchase agreements
U.S. Treasury	$	592,182	$	—	$	—	$	25,724	$	617,906
Government agency	—		—		—		4,276		4,276
Total borrowings	$	592,182	$	—	$	—	$	30,000	$	622,182
Gross amount of recognized liabilities for repurchase agreements									$	622,182

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Estimated Fair Values (Tables)

3 Months Ended

Mar. 31, 2016

Fair Value Disclosures [Abstract]

Estimated Fair Values For Certain Financial Assets And Financial Liabilities

For all other financial assets and financial liabilities, the carrying value is a reasonable estimate of the fair value as of March 31, 2016 and December 31, 2015. The carrying value and fair value for these assets and liabilities are equivalent because they are relatively short term in nature and there is no interest rate or credit risk that would cause the fair value to differ from the carrying value. Cash and due from banks is classified on the fair value hierarchy as level 1. Overnight investments, income earned not collected, short-term borrowings and accrued interest payable are considered level 2. Lastly, the receivable from the FDIC for loss share agreements is designated as level 3.

(Dollars in thousands)	March 31, 2016				December 31, 2015
	Carrying value		Fair value		Carrying value		Fair value
Cash and due from banks	$	457,758	$	457,758	$	534,086	$	534,086
Overnight investments	2,871,105		2,871,105		2,063,132		2,063,132
Investment securities available for sale	6,687,289		6,687,289		6,861,293		6,861,293
Investment securities held to maturity	194		203		255		265
Loans held for sale	66,988		66,988		59,766		59,766
Net loans and leases	20,210,906		19,703,240		20,033,774		19,353,325
Receivable from the FDIC for loss share agreements (1)	7,474		7,474		4,054		4,054
Income earned not collected	73,518		73,518		70,036		70,036
Federal Home Loan Bank stock	40,407		40,407		37,511		37,511
Mortgage servicing rights	17,186		17,234		19,351		19,495
Deposits	27,365,245		26,904,946		26,930,755		26,164,472
Short-term borrowings	689,236		689,236		594,733		594,733
Long-term obligations	779,087		808,765		704,155		718,102
Payable to the FDIC for loss share agreements	128,243		136,646		126,453		131,894
Accrued interest payable	6,037		6,037		5,713		5,713
Interest rate swap	729		729		1,429		1,429

⁽¹⁾ At March 31, 2016 and December 31, 2015, the carrying value of the FDIC receivable approximates the fair value due to the short term nature of the majority of loss share agreements.

Assets And Liabilities Carried At Fair Value On A Recurring Basis

For assets and liabilities carried at fair value on a recurring basis, the following table provides fair value information as of March 31, 2016 and December 31, 2015.

	March 31, 2016
			Fair value measurements using:
(Dollars in thousands)	Fair value		Level 1 inputs		Level 2 inputs		Level 3 inputs
Assets measured at fair value
Investment securities available for sale
U.S. Treasury	$	1,541,215	$	—	$	1,541,215	$	—
Government agency	356,157		—		356,157		—
Mortgage-backed securities	4,727,282		—		4,727,282		—
Equity securities	52,095		7,400		44,695		—
Other	10,540		—		10,540		—
Total investment securities available for sale	$	6,687,289	$	7,400	$	6,679,889	$	—
Loans held for sale	$	66,988	$	—	$	66,988	$	—
Liabilities measured at fair value
Interest rate swaps accounted for as cash flow hedges	$	729	$	—	$	729	$	—
	December 31, 2015
			Fair value measurements using:
	Fair value		Level 1 inputs		Level 2 inputs		Level 3 inputs
Assets measured at fair value
Investment securities available for sale
U.S. Treasury	$	1,674,882	$	—	$	1,674,882	$	—
Government agency	498,660		—		498,660		—
Mortgage-backed securities	4,668,198		—		4,668,198		—
Equity securities	8,893		1,668		7,225		—
Other	10,660		—		10,660		—
Total investment securities available for sale	$	6,861,293	$	1,668	$	6,859,625	$	—
Loans held for sale	$	59,766	$	—	$	59,766	$	—
Liabilities measured at fair value
Interest rate swaps accounted for as cash flow hedges	$	1,429	$	—	$	1,429	$	—

Fair Value Option

The following table summarizes the difference between the aggregate fair value and the aggregate unpaid principal balance for residential real estate loans held for sale measured at fair value as of March 31, 2016 and December 31, 2015.

	March 31, 2016
(Dollars in thousands)	Fair Value		Aggregate Unpaid Principal Balance		Difference
Loans held for sale	$	66,988	$	65,350	$	1,638
	December 31, 2015
	Fair Value		Aggregate Unpaid Principal Balance		Difference
Loans held for sale	$	59,766	$	58,890	$	876

No loans held for sale were 90 or more days past due or on nonaccrual status as of March 31, 2016 or December 31, 2015.

The changes in fair value for residential real estate loans held for sale for which we elected the fair value option are included in the table below for the three months ended March 31, 2016 and 2015.

	Three months ended March 31
(Dollars in thousands)	2016		2015
Gains (losses) from fair value changes on loans held for sale	$	763	$	430

Assets And Liabilities Carried At Fair Value On A Nonrecurring Basis

For financial assets and liabilities carried at fair value on a nonrecurring basis, the following table provides fair value information as of March 31, 2016 and December 31, 2015.

	March 31, 2016
			Fair value measurements using:
(Dollars in thousands)	Fair value		Level 1 inputs		Level 2 inputs		Level 3 inputs
Impaired loans	$	52,337	$	—	$	—	$	52,337
Other real estate not covered under loss share agreements remeasured during current year	17,278		—		—		17,278
Other real estate covered under loss share agreements remeasured during current year	6,247		—		—		6,247
Mortgage servicing rights	16,800		—		—		16,800
	December 31, 2015
			Fair value measurements using:
	Fair value		Level 1 inputs		Level 2 inputs		Level 3 inputs
Impaired loans	$	64,197	$	—	$	—	$	64,197
Other real estate not covered under loss share agreements remeasured during current year	44,571		—		—		44,571
Other real estate covered under loss share agreements remeasured during current year	4,403		—		—		4,403
Mortgage servicing rights	17,997		—		—		17,997

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Employee Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2016

BancShares Plan

Defined Benefit Plan Disclosure [Line Items]

Schedule of Net Benefit Costs

BancShares Plan

For the three months ended March 31, 2016 and 2015, the components of net periodic benefit cost are as follows:

	Three months ended March 31
(Dollars in thousands)	2016			2015
Service cost	$	3,220		$	3,600
Interest cost	7,180			6,748
Expected return on assets	(9,159		)	(8,295		)
Amortization of prior service cost	52			53
Amortization of net actuarial loss	1,600			2,833
Net periodic benefit cost	$	2,893		$	4,939

Bancorporation Plan

Defined Benefit Plan Disclosure [Line Items]

Schedule of Net Benefit Costs

Bancorporation Plan

For the three months ended March 31, 2016 and 2015, the components of net periodic benefit cost are as follows:

	Three months ended March 31
(Dollars in thousands)	2016			2015
Service cost	$	650		$	933
Interest cost	1,675			1,628
Expected return on assets	(2,779		)	(2,869		)
Net periodic benefit cost	$	(454	)	$	(308	)

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Derivatives (Tables)

3 Months Ended

Mar. 31, 2016

Interest Rate Swap

Derivative [Line Items]

Schedule Of Interest Rate Swaps

	March 31, 2016				December 31, 2015
(Dollars in thousands)	Notional  amount		Estimated fair value of liability		Notional  amount		Estimated fair value of liability
2011 interest rate swap hedging variable rate exposure on trust preferred securities 2011-2016	$	93,500	$	729	$	93,500	$	1,429

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Accumulated Other Comprehensive Income (Loss) (Tables)

3 Months Ended

Mar. 31, 2016

Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]

Schedule Of Accumulated Other Comprehensive Income (Loss)

Accumulated other comprehensive income (loss) included the following as of March 31, 2016 and December 31, 2015:

	March 31, 2016									December 31, 2015
(Dollars in thousands)	Accumulated other comprehensive income (loss)			Deferred tax expense (benefit)			Accumulated other comprehensive income (loss), net of tax			Accumulated other comprehensive loss			Deferred tax benefit			Accumulated other comprehensive loss, net of tax
Unrealized gains (losses) on investment securities available for sale, net	$	38,900		$	14,866		$	24,034		$	(24,504	)	$	(9,379	)	$	(15,125	)
Unrealized loss on cash flow hedge	(729		)	(274		)	(455		)	(1,429		)	(537		)	(892		)
Funded status of defined benefit plans	(76,767		)	(29,364		)	(47,403		)	(78,419		)	(29,996		)	(48,423		)
Total	$	(38,596	)	$	(14,772	)	$	(23,824	)	$	(104,352	)	$	(39,912	)	$	(64,440	)

The following table highlights changes in accumulated other comprehensive (loss) income by component for the three months ended March 31, 2016 and March 31, 2015:

	Three months ended March 31, 2016
(Dollars in thousands)	Unrealized gains (losses) on available for sale securities1			Gains (losses) on cash flow hedges1			Defined benefit pension items1			Total
Beginning balance	$	(15,125	)	$	(892	)	$	(48,423	)	$	(64,440	)
Other comprehensive income before reclassifications	42,017			437			—			42,454
Amounts reclassified from accumulated other comprehensive (loss) income	(2,858		)	—			1,020			(1,838		)
Net current period other comprehensive income	39,159			437			1,020			40,616
Ending balance	$	24,034		$	(455	)	$	(47,403	)	$	(23,824	)
	Three months ended March 31, 2015
	Unrealized gains (losses) on available for sale securities1			Gains (losses) on cash flow hedges1			Defined benefit pension items1			Total
Beginning balance	$	5,098		$	(2,664	)	$	(55,415	)	$	(52,981	)
Other comprehensive income before reclassifications	18,602			354			—			18,956
Amounts reclassified from accumulated other comprehensive (loss) income	(3,149		)	—			1,763			(1,386		)
Net current period other comprehensive income	15,453			354			1,763			17,570
Ending balance	$	20,551		$	(2,310	)	$	(53,652	)	$	(35,411	)

¹ All amounts are net of tax.

Reclassification out of Accumulated Other Comprehensive Income

(Dollars in thousands)	Three months ended March 31, 2016
Details about accumulated other comprehensive income (loss)	Amounts reclassified from accumulated other comprehensive income (loss)1			Affected line item in the statement where net income is presented
Unrealized gains and losses on available for sale securities	$	4,628		Securities gains
	(1,770		)	Income taxes
	$	2,858		Net income
Amortization of defined benefit pension items
Prior service costs	$	(52	)	Employee benefits
Actuarial losses	(1,600		)	Employee benefits
	(1,652		)	Employee benefits
	632			Income taxes
	$	(1,020	)	Net income
Total reclassifications for the period	$	1,838
	Three months ended March 31, 2015
Details about accumulated other comprehensive income (loss)	Amounts reclassified from accumulated other comprehensive income (loss)1			Affected line item in the statement where net income is presented
Unrealized gains and losses on available for sale securities	$	5,126		Securities gains
	(1,977		)	Income taxes
	$	3,149		Net income
Amortization of defined benefit pension items
Prior service costs	$	(53	)	Employee benefits
Actuarial losses	(2,833		)	Employee benefits
	(2,886		)	Employee benefits
	1,123			Income taxes
	$	(1,763	)	Net income
Total reclassifications for the period	$	1,386

¹ Amounts in parentheses indicate debits to profit/loss.

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Business Combinations Business Combinations (Details) - USD ($) $ in Thousands		3 Months Ended
	Feb. 14, 2015	Mar. 31, 2016	Mar. 31, 2015	Mar. 11, 2016	Feb. 13, 2015
Business Acquisition [Line Items]
Certain Loans Acquired in Transfer Accounted for as Debt Securities, Acquired During Period, at Acquisition, at Fair Value				$ 35,416	$ 154,496
Gain on acquisition		$ 1,704	$ 42,930
Merger-related expenses		38	$ 2,997
North Milwaukee State Bank
Business Acquisition [Line Items]
Cash and cash equivalents				4,545
Overnight investments				2,274
Investment securities available for sale				9,425
Certain Loans Acquired in Transfer Accounted for as Debt Securities, Acquired During Period, at Acquisition, at Fair Value				35,416
Other real estate owned				330
Intangible asset				240
Other assets				216
Total assets acquired				52,446
Deposits				59,206
Short-term borrowings				1,662
Other liabilities				74
Total liabilities assumed				60,942
Fair value of net assets (liabilities) assumed				(8,496)
Cash received from FDIC				$ 10,200
Gain on acquisition	$ 1,704
Merger-related expenses		38
Revenue generated		$ 123

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Business Combinations (Loans Acquired) (Details) - USD ($) $ in Thousands	Mar. 11, 2016	Feb. 13, 2015
Business Acquisition [Line Items]
Certain Loans Acquired in Transfer Accounted for as Debt Securities, Acquired During Period, at Acquisition, at Fair Value	$ 35,416	$ 154,496

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Investments (Aggregate Values and Unrealized Gains and Losses) (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Investment securities available for sale
Cost	$ 6,648,389	$ 6,885,797
Gross Unrealized Gains	42,666	6,367
Gross Unrealized Losses	3,766	30,871
Fair Value	6,687,289	6,861,293
Investment securities held to maturity
Cost	194	255
U. S. Treasury
Investment securities available for sale
Cost	1,538,907	1,675,996
Gross Unrealized Gains	2,308	4
Gross Unrealized Losses	0	1,118
Fair Value	1,541,215	1,674,882
Government Agency
Investment securities available for sale
Cost	355,488	498,804
Gross Unrealized Gains	669	230
Gross Unrealized Losses	0	374
Fair Value	356,157	498,660
Mortgage Backed Securities
Investment securities available for sale
Cost	4,693,313	4,692,447
Gross Unrealized Gains	37,375	5,120
Gross Unrealized Losses	3,406	29,369
Fair Value	4,727,282	4,668,198
Investment securities held to maturity
Cost	194	255
Held To Maturity Securities Accumulated Unrecognized Holding Gain	9	10
Held To Maturity Securities Accumulated Unrecognized Holding Loss	0	0
Fair Value	203	265
Equity Securities
Investment securities available for sale
Cost	50,066	7,935
Gross Unrealized Gains	2,314	968
Gross Unrealized Losses	285	10
Fair Value	52,095	8,893
Other Debt Obligations
Investment securities available for sale
Cost	10,615	10,615
Gross Unrealized Gains	0	45
Gross Unrealized Losses	75	0
Fair Value	$ 10,540	$ 10,660

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Investments (Maturity Information) (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Investment securities available for sale
Total investment securities available for sale, cost	$ 6,648,389	$ 6,885,797
Total investment securities available for sale, fair value	6,687,289	6,861,293
Investment securities held to maturity
Investment securities held to maturity	194	255
Debt Securities
Investment securities available for sale
Maturing in one year or less, cost	1,554,483	1,255,714
Maturing in one through five years, cost	339,912	919,086
Maturing in over ten years, cost	2,115	2,115
Maturing in one year or less, fair value	1,556,414	1,255,094
Maturing in one through five years, fair value	340,958	918,448
Maturing in over ten years, fair value	2,040	2,160
Investment securities held to maturity
Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Amortized Cost Basis	8,500	8,500
Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Fair Value	$ 8,500	$ 8,500

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Investments (Unrealized Losses) (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Investment securities available for sale:
Fair Value, Less than 12 months	$ 432,788	$ 5,340,271
Unrealized Losses, Less than 12 months	1,431	24,777
Fair Value, 12 months or more	291,021	280,126
Unrealized Losses, Greater than 12 months	2,335	6,094
Fair Value, Total	723,809	5,620,397
Unrealized Losses, Total	3,766	30,871
U. S. Treasury
Investment securities available for sale:
Fair Value, Less than 12 months		1,539,637
Unrealized Losses, Less than 12 months		1,118
Fair Value, 12 months or more		0
Unrealized Losses, Greater than 12 months		0
Fair Value, Total		1,539,637
Unrealized Losses, Total	0	1,118
Government Agency
Investment securities available for sale:
Fair Value, Less than 12 months		229,436
Unrealized Losses, Less than 12 months		374
Fair Value, 12 months or more		0
Unrealized Losses, Greater than 12 months		0
Fair Value, Total		229,436
Unrealized Losses, Total	0	374
Mortgage Backed Securities
Investment securities available for sale:
Fair Value, Less than 12 months	417,711	3,570,470
Unrealized Losses, Less than 12 months	1,071	23,275
Fair Value, 12 months or more	291,021	280,126
Unrealized Losses, Greater than 12 months	2,335	6,094
Fair Value, Total	708,732	3,850,596
Unrealized Losses, Total	3,406	29,369
Equity Securities
Investment securities available for sale:
Fair Value, Less than 12 months	13,037	728
Unrealized Losses, Less than 12 months	285	10
Fair Value, 12 months or more	0	0
Unrealized Losses, Greater than 12 months	0	0
Fair Value, Total	13,037	728
Unrealized Losses, Total	285	10
Other Debt Obligations
Investment securities available for sale:
Fair Value, Less than 12 months	2,040
Unrealized Losses, Less than 12 months	75
Fair Value, 12 months or more	0
Available For Sale Securities Continuous Unrealized Loss Position 12 Months Or Longer Aggregate Losses Acumulated In Investments	0
Fair Value, Total	2,040
Unrealized Losses, Total	$ 75	$ 0

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Investments (Narrative) (Details)	3 Months Ended
	Mar. 31, 2016 USD ($) investments	Mar. 31, 2015 USD ($)	Dec. 31, 2015 USD ($)
Investments [Abstract]
Securities gains (losses)	$ 4,628,000	$ 5,126,000
Unrealized Losses Related to Marketability of Securities or Issuer's Ability to Honor Redemption Obligations	0		$ 0
Fair Value, 12 months or more in unrealized loss position	291,021,000		280,126,000
Unrealized Losses, Greater than 12 months	$ 2,335,000		6,094,000
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year | investments	52
Investment value deemed to be OTTI	$ 0
Investment securities, aggregate carrying value, pledged as collateral	$ 4,940,000,000		$ 4,730,000,000

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Investments (Securities Gains (Losses)) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Investments [Abstract]
Gross gains on sales of investment securities available for sale	$ 4,933	$ 5,135
Gross losses on sales of investment securities available for sale	(305)	(9)
Total securities gains (losses)	$ 4,628	$ 5,126

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Loans and Leases (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Financing Receivable, Recorded Investment [Line Items]
Noncovered loans pledged to secure debt obligations	$ 8,510,000		$ 8,580,000
Threshold period past due for write-off of Business credit card loans (days)	120 days
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged	$ 6,080,000		6,080,000
Advances from Federal Home Loan Banks	585,300		510,300
Federal Home Loan Bank Advances, Current Borrowing Capacity	5,500,000		5,570,000
Unamortized Loan Commitment and Origination Fees and Unamortized Discounts or Premiums	13,200		16,600
Loans and Leases Receivable, Gross, Carrying Amount, Covered	258,200		272,600
Non-PCI Loans
Financing Receivable, Recorded Investment [Line Items]
Nonaccruing	90,455		95,854
Accretion Income	3,200	$ 5,600
PCI Loans
Financing Receivable, Recorded Investment [Line Items]
Nonaccruing	7,300		7,600
Bancorporation
Financing Receivable, Recorded Investment [Line Items]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Purchase Discount Remaining	37,900		$ 41,100
United Western Bank [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Covered	113,700
Atlantic Bank & Trust [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Covered	9,000
Williamsburg First National Bank
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Covered	$ 2,700

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Loans and Leases (Loans and Leases Outstanding) (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015	Dec. 31, 2014
Non-PCI loans	$ 19,471,802	$ 19,289,474
PCI loans	945,887	950,516	$ 1,252,545	$ 1,186,498
Total loans and leases	20,417,689	20,239,990
Commercial
Non-PCI loans	12,789,915	12,630,489
PCI loans	594,227	593,614
Commercial | Construction and land development
Non-PCI loans	626,311	620,352
PCI loans	32,799	33,880
Commercial | Mortgage
Non-PCI loans	8,353,631	8,274,548
PCI loans	526,776	525,468
Commercial | Other commercial real estate
Non-PCI loans	324,858	321,021
PCI loans	18,050	17,076
Commercial | Commercial and industrial
Non-PCI loans	2,389,946	2,368,958
PCI loans	14,742	15,182
Commercial | Lease financing
Non-PCI loans	751,292	730,778
Commercial | Other
Non-PCI loans	343,877	314,832
PCI loans	1,860	2,008
Noncommercial
Non-PCI loans	6,681,887	6,658,985
PCI loans	351,660	356,902
Noncommercial | Construction and land development
Non-PCI loans	213,232	220,073
Noncommercial | Mortgage
Non-PCI loans	2,718,208	2,695,985
PCI loans	298,662	302,158
Noncommercial | Revolving mortgage
Non-PCI loans	2,521,902	2,523,106
PCI loans	50,574	52,471
Noncommercial | Consumer
Non-PCI loans	1,228,545	1,219,821
PCI loans	$ 2,424	$ 2,273

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Loans and Leases (Composition of the Loans and Leases Outstanding By Credit Quality Indicator) (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
PCI loans	$ 945,887	$ 950,516	$ 1,252,545	$ 1,186,498
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	12,789,915	12,630,489
PCI loans	594,227	593,614
Commercial | Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	8,353,631	8,274,548
PCI loans	526,776	525,468
Commercial | Other commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	324,858	321,021
PCI loans	18,050	17,076
Commercial | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	2,389,946	2,368,958
PCI loans	14,742	15,182
Commercial | Lease financing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	751,292	730,778
Commercial | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	343,877	314,832
PCI loans	1,860	2,008
Commercial | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	626,311	620,352
PCI loans	32,799	33,880
Commercial | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	12,374,106	12,204,677
PCI loans	292,419	294,663
Commercial | Pass | Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	8,102,908	8,024,831
PCI loans	261,904	262,579
Commercial | Pass | Other commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	321,375	318,187
PCI loans	8,500	7,366
Commercial | Pass | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	2,241,626	2,219,606
PCI loans	8,595	9,302
Commercial | Pass | Lease financing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	744,585	719,338
Commercial | Pass | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	341,300	311,401
PCI loans	623	706
Commercial | Pass | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	622,312	611,314
PCI loans	12,797	14,710
Commercial | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	119,680	132,021
PCI loans	90,189	89,625
Commercial | Special Mention | Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	97,425	100,220
PCI loans	87,801	87,870
Commercial | Special Mention | Other commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	1,294	475
PCI loans	59	60
Commercial | Special Mention | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	14,003	19,361
PCI loans	548	937
Commercial | Special Mention | Lease financing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	3,698	4,869
Commercial | Special Mention | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	1,334	1,905
PCI loans	0	0
Commercial | Special Mention | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	1,926	5,191
PCI loans	1,781	758
Commercial | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	176,706	180,100
PCI loans	187,749	193,051
Commercial | Substandard | Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	149,651	146,071
PCI loans	159,083	163,801
Commercial | Substandard | Other commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	1,030	959
PCI loans	9,081	9,229
Commercial | Substandard | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	20,070	21,322
PCI loans	4,292	4,588
Commercial | Substandard | Lease financing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	2,639	6,375
Commercial | Substandard | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	1,243	1,526
PCI loans	1,237	1,302
Commercial | Substandard | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	2,073	3,847
PCI loans	14,056	14,131
Commercial | Doubtful
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	903	1,176
PCI loans	23,061	15,438
Commercial | Doubtful | Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	458	599
PCI loans	17,656	10,875
Commercial | Doubtful | Other commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	0	0
PCI loans	0	0
Commercial | Doubtful | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	399	408
PCI loans	1,240	282
Commercial | Doubtful | Lease financing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	46	169
Commercial | Doubtful | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	0	0
PCI loans	0	0
Commercial | Doubtful | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	0	0
PCI loans	4,165	4,281
Commercial | Ungraded
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	118,520	112,515
PCI loans	809	837
Commercial | Ungraded | Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	3,189	2,827
PCI loans	332	343
Commercial | Ungraded | Other commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	1,159	1,400
PCI loans	410	421
Commercial | Ungraded | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	113,848	108,261
PCI loans	67	73
Commercial | Ungraded | Lease financing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	324	27
Commercial | Ungraded | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	0	0
PCI loans	0	0
Commercial | Ungraded | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	0	0
PCI loans	0	0
Noncommercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
PCI loans	351,660	356,902
Noncommercial | Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
PCI loans	298,662	302,158
Noncommercial | Revolving mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
PCI loans	50,574	52,471
Noncommercial | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
PCI loans	2,424	2,273
Non-PCI Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	19,471,802	19,289,474
Past due loans	126,873	121,576
Current loans	19,344,929	19,167,898
Non-PCI Loans | Commercial | Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	8,353,631	8,274,548
Past due loans	33,697	30,964
Current loans	8,319,934	8,243,584
Non-PCI Loans | Commercial | Other commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	324,858	321,021
Past due loans	1,419	1,026
Current loans	323,439	319,995
Non-PCI Loans | Commercial | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	2,389,946	2,368,958
Past due loans	11,117	4,992
Current loans	2,378,829	2,363,966
Non-PCI Loans | Commercial | Lease financing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	751,292	730,778
Past due loans	958	2,236
Current loans	750,334	728,542
Non-PCI Loans | Commercial | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	343,877	314,832
Past due loans	440	301
Current loans	343,437	314,531
Non-PCI Loans | Commercial | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	626,311	620,352
Past due loans	1,360	1,733
Current loans	624,951	618,619
Non-PCI Loans | Noncommercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	6,681,887	6,658,985
Current loans	6,604,005	6,578,661
Non-PCI Loans | Noncommercial | Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	2,718,208	2,695,985
Past due loans	44,757	44,776
Current loans	2,673,451	2,651,209
Non-PCI Loans | Noncommercial | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	213,232	220,073
Past due loans	4,288	5,518
Current loans	208,944	214,555
Non-PCI Loans | Noncommercial | Revolving mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	2,521,902	2,523,106
Past due loans	20,383	21,041
Current loans	2,501,519	2,502,065
Non-PCI Loans | Noncommercial | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-PCI loans	1,228,545	1,219,821
Past due loans	8,454	8,989
Current loans	1,220,091	1,210,832
PCI Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
PCI loans	945,887	950,516
PCI Loans | Noncommercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current loans	307,885	307,089
PCI Loans | Noncommercial | Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current loans	261,230	257,207
PCI Loans | Noncommercial | Revolving mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current loans	44,401	47,901
PCI Loans | Noncommercial | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current loans	2,254	1,981
90 Days or greater | Non-PCI Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due loans	41,565	39,349
90 Days or greater | Non-PCI Loans | Commercial | Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due loans	17,637	14,495
90 Days or greater | Non-PCI Loans | Commercial | Other commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due loans	27	142
90 Days or greater | Non-PCI Loans | Commercial | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due loans	1,194	1,780
90 Days or greater | Non-PCI Loans | Commercial | Lease financing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due loans	44	164
90 Days or greater | Non-PCI Loans | Commercial | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due loans	333	134
90 Days or greater | Non-PCI Loans | Commercial | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due loans	312	463
90 Days or greater | Non-PCI Loans | Noncommercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due loans	22,018	22,171
90 Days or greater | Non-PCI Loans | Noncommercial | Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due loans	13,015	13,280
90 Days or greater | Non-PCI Loans | Noncommercial | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due loans	842	1,638
90 Days or greater | Non-PCI Loans | Noncommercial | Revolving mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due loans	6,768	5,631
90 Days or greater | Non-PCI Loans | Noncommercial | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due loans	1,393	1,622
90 Days or greater | PCI Loans | Noncommercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due loans	27,259	31,208
90 Days or greater | PCI Loans | Noncommercial | Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due loans	23,934	28,192
90 Days or greater | PCI Loans | Noncommercial | Revolving mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due loans	3,323	2,942
90 Days or greater | PCI Loans | Noncommercial | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due loans	2	74
60 to 89 Days past due | Non-PCI Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due loans	15,809	18,705
60 to 89 Days past due | Non-PCI Loans | Commercial | Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due loans	1,817	3,446
60 to 89 Days past due | Non-PCI Loans | Commercial | Other commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due loans	248	0
60 to 89 Days past due | Non-PCI Loans | Commercial | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due loans	2,049	1,079
60 to 89 Days past due | Non-PCI Loans | Commercial | Lease financing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due loans	202	2
60 to 89 Days past due | Non-PCI Loans | Commercial | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due loans	0	164
60 to 89 Days past due | Non-PCI Loans | Commercial | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due loans	9	283
60 to 89 Days past due | Non-PCI Loans | Noncommercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due loans	11,484	13,731
60 to 89 Days past due | Non-PCI Loans | Noncommercial | Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due loans	7,041	7,536
60 to 89 Days past due | Non-PCI Loans | Noncommercial | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due loans	325	669
60 to 89 Days past due | Non-PCI Loans | Noncommercial | Revolving mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due loans	2,396	3,704
60 to 89 Days past due | Non-PCI Loans | Noncommercial | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due loans	1,722	1,822
60 to 89 Days past due | PCI Loans | Noncommercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due loans	4,542	5,074
60 to 89 Days past due | PCI Loans | Noncommercial | Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due loans	3,191	4,441
60 to 89 Days past due | PCI Loans | Noncommercial | Revolving mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due loans	1,306	501
60 to 89 Days past due | PCI Loans | Noncommercial | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due loans	45	132
30 to 59 Days past due | Non-PCI Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due loans	69,499	63,522
30 to 59 Days past due | Non-PCI Loans | Commercial | Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due loans	14,243	13,023
30 to 59 Days past due | Non-PCI Loans | Commercial | Other commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due loans	1,144	884
30 to 59 Days past due | Non-PCI Loans | Commercial | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due loans	7,874	2,133
30 to 59 Days past due | Non-PCI Loans | Commercial | Lease financing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due loans	712	2,070
30 to 59 Days past due | Non-PCI Loans | Commercial | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due loans	107	3
30 to 59 Days past due | Non-PCI Loans | Commercial | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due loans	1,039	987
30 to 59 Days past due | Non-PCI Loans | Noncommercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due loans	44,380	44,422
30 to 59 Days past due | Non-PCI Loans | Noncommercial | Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due loans	24,701	23,960
30 to 59 Days past due | Non-PCI Loans | Noncommercial | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due loans	3,121	3,211
30 to 59 Days past due | Non-PCI Loans | Noncommercial | Revolving mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due loans	11,219	11,706
30 to 59 Days past due | Non-PCI Loans | Noncommercial | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due loans	5,339	5,545
30 to 59 Days past due | PCI Loans | Noncommercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due loans	11,974	13,531
30 to 59 Days past due | PCI Loans | Noncommercial | Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due loans	10,307	12,318
30 to 59 Days past due | PCI Loans | Noncommercial | Revolving mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due loans	1,544	1,127
30 to 59 Days past due | PCI Loans | Noncommercial | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due loans	$ 123	$ 86

XML

Loans and Leases (Aging Of The Outstanding Loans and Leases By Class) (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015	Dec. 31, 2014
Financing Receivable, Recorded Investment, Past Due [Line Items]
PCI loans	$ 945,887	$ 950,516	$ 1,252,545	$ 1,186,498
Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
PCI loans	594,227	593,614
Non-PCI loans	12,789,915	12,630,489
Commercial | Construction and land development
Financing Receivable, Recorded Investment, Past Due [Line Items]
PCI loans	32,799	33,880
Non-PCI loans	626,311	620,352
Commercial | Mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
PCI loans	526,776	525,468
Non-PCI loans	8,353,631	8,274,548
Commercial | Other commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
PCI loans	18,050	17,076
Non-PCI loans	324,858	321,021
Commercial | Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
PCI loans	14,742	15,182
Non-PCI loans	2,389,946	2,368,958
Commercial | Lease financing
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-PCI loans	751,292	730,778
Commercial | Other
Financing Receivable, Recorded Investment, Past Due [Line Items]
PCI loans	1,860	2,008
Non-PCI loans	343,877	314,832
Noncommercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
PCI loans	351,660	356,902
Noncommercial | Mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
PCI loans	298,662	302,158
Noncommercial | Revolving mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
PCI loans	50,574	52,471
Noncommercial | Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
PCI loans	2,424	2,273
PCI Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
PCI loans	945,887	950,516
PCI Loans | Noncommercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current loans	307,885	307,089
PCI Loans | Noncommercial | Mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current loans	261,230	257,207
PCI Loans | Noncommercial | Revolving mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current loans	44,401	47,901
PCI Loans | Noncommercial | Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current loans	2,254	1,981
Non-PCI Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	126,873	121,576
Current loans	19,344,929	19,167,898
Non-PCI loans	19,471,802	19,289,474
Non-PCI Loans | Commercial | Construction and land development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	1,360	1,733
Current loans	624,951	618,619
Non-PCI loans	626,311	620,352
Non-PCI Loans | Commercial | Mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	33,697	30,964
Current loans	8,319,934	8,243,584
Non-PCI loans	8,353,631	8,274,548
Non-PCI Loans | Commercial | Other commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	1,419	1,026
Current loans	323,439	319,995
Non-PCI loans	324,858	321,021
Non-PCI Loans | Commercial | Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	11,117	4,992
Current loans	2,378,829	2,363,966
Non-PCI loans	2,389,946	2,368,958
Non-PCI Loans | Commercial | Lease financing
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	958	2,236
Current loans	750,334	728,542
Non-PCI loans	751,292	730,778
Non-PCI Loans | Commercial | Other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	440	301
Current loans	343,437	314,531
Non-PCI loans	343,877	314,832
Non-PCI Loans | Noncommercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current loans	6,604,005	6,578,661
Non-PCI loans	6,681,887	6,658,985
Non-PCI Loans | Noncommercial | Construction and land development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	4,288	5,518
Current loans	208,944	214,555
Non-PCI loans	213,232	220,073
Non-PCI Loans | Noncommercial | Mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	44,757	44,776
Current loans	2,673,451	2,651,209
Non-PCI loans	2,718,208	2,695,985
Non-PCI Loans | Noncommercial | Revolving mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	20,383	21,041
Current loans	2,501,519	2,502,065
Non-PCI loans	2,521,902	2,523,106
Non-PCI Loans | Noncommercial | Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	8,454	8,989
Current loans	1,220,091	1,210,832
Non-PCI loans	1,228,545	1,219,821
90 Days or greater | PCI Loans | Noncommercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	27,259	31,208
90 Days or greater | PCI Loans | Noncommercial | Mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	23,934	28,192
90 Days or greater | PCI Loans | Noncommercial | Revolving mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	3,323	2,942
90 Days or greater | PCI Loans | Noncommercial | Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	2	74
90 Days or greater | Non-PCI Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	41,565	39,349
90 Days or greater | Non-PCI Loans | Commercial | Construction and land development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	312	463
90 Days or greater | Non-PCI Loans | Commercial | Mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	17,637	14,495
90 Days or greater | Non-PCI Loans | Commercial | Other commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	27	142
90 Days or greater | Non-PCI Loans | Commercial | Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	1,194	1,780
90 Days or greater | Non-PCI Loans | Commercial | Lease financing
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	44	164
90 Days or greater | Non-PCI Loans | Commercial | Other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	333	134
90 Days or greater | Non-PCI Loans | Noncommercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	22,018	22,171
90 Days or greater | Non-PCI Loans | Noncommercial | Construction and land development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	842	1,638
90 Days or greater | Non-PCI Loans | Noncommercial | Mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	13,015	13,280
90 Days or greater | Non-PCI Loans | Noncommercial | Revolving mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	6,768	5,631
90 Days or greater | Non-PCI Loans | Noncommercial | Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	1,393	1,622
60 to 89 Days past due | PCI Loans | Noncommercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	4,542	5,074
60 to 89 Days past due | PCI Loans | Noncommercial | Mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	3,191	4,441
60 to 89 Days past due | PCI Loans | Noncommercial | Revolving mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	1,306	501
60 to 89 Days past due | PCI Loans | Noncommercial | Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	45	132
60 to 89 Days past due | Non-PCI Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	15,809	18,705
60 to 89 Days past due | Non-PCI Loans | Commercial | Construction and land development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	9	283
60 to 89 Days past due | Non-PCI Loans | Commercial | Mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	1,817	3,446
60 to 89 Days past due | Non-PCI Loans | Commercial | Other commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	248	0
60 to 89 Days past due | Non-PCI Loans | Commercial | Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	2,049	1,079
60 to 89 Days past due | Non-PCI Loans | Commercial | Lease financing
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	202	2
60 to 89 Days past due | Non-PCI Loans | Commercial | Other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	0	164
60 to 89 Days past due | Non-PCI Loans | Noncommercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	11,484	13,731
60 to 89 Days past due | Non-PCI Loans | Noncommercial | Construction and land development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	325	669
60 to 89 Days past due | Non-PCI Loans | Noncommercial | Mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	7,041	7,536
60 to 89 Days past due | Non-PCI Loans | Noncommercial | Revolving mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	2,396	3,704
60 to 89 Days past due | Non-PCI Loans | Noncommercial | Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	1,722	1,822
30 to 59 Days past due | PCI Loans | Noncommercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	11,974	13,531
30 to 59 Days past due | PCI Loans | Noncommercial | Mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	10,307	12,318
30 to 59 Days past due | PCI Loans | Noncommercial | Revolving mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	1,544	1,127
30 to 59 Days past due | PCI Loans | Noncommercial | Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	123	86
30 to 59 Days past due | Non-PCI Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	69,499	63,522
30 to 59 Days past due | Non-PCI Loans | Commercial | Construction and land development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	1,039	987
30 to 59 Days past due | Non-PCI Loans | Commercial | Mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	14,243	13,023
30 to 59 Days past due | Non-PCI Loans | Commercial | Other commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	1,144	884
30 to 59 Days past due | Non-PCI Loans | Commercial | Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	7,874	2,133
30 to 59 Days past due | Non-PCI Loans | Commercial | Lease financing
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	712	2,070
30 to 59 Days past due | Non-PCI Loans | Commercial | Other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	107	3
30 to 59 Days past due | Non-PCI Loans | Noncommercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	44,380	44,422
30 to 59 Days past due | Non-PCI Loans | Noncommercial | Construction and land development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	3,121	3,211
30 to 59 Days past due | Non-PCI Loans | Noncommercial | Mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	24,701	23,960
30 to 59 Days past due | Non-PCI Loans | Noncommercial | Revolving mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	11,219	11,706
30 to 59 Days past due | Non-PCI Loans | Noncommercial | Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due loans	$ 5,339	$ 5,545

XML

Loans and Leases (Recorded Investment, By Class, In Loans And Leases On Nonaccrual Status And Loans And Leases Greater Than 90 Days Past Due And Still Accruing) (Details) - Non-PCI Loans - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccruing	$ 90,455	$ 95,854
Loans and leases greater than 90 days and accruing	4,882	3,315
Commercial | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccruing	534	425
Loans and leases greater than 90 days and accruing	23	273
Commercial | Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccruing	35,861	42,116
Loans and leases greater than 90 days and accruing	2,671	242
Commercial | Other commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccruing	134	239
Loans and leases greater than 90 days and accruing	0	0
Commercial | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccruing	4,127	6,235
Loans and leases greater than 90 days and accruing	680	953
Commercial | Lease financing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccruing	254	389
Loans and leases greater than 90 days and accruing	0	0
Noncommercial | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccruing	2,224	2,164
Loans and leases greater than 90 days and accruing	0	0
Noncommercial | Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccruing	31,262	29,977
Loans and leases greater than 90 days and accruing	561	838
Noncommercial | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccruing	268	133
Loans and leases greater than 90 days and accruing	155	2
Noncommercial | Revolving mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccruing	14,159	12,704
Loans and leases greater than 90 days and accruing	0	0
Noncommercial | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccruing	1,632	1,472
Loans and leases greater than 90 days and accruing	$ 792	$ 1,007

XML

Loans and Leases (Changes In Carrying Value Of Acquired Impaired Loans) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 11, 2016	Dec. 31, 2015	Feb. 13, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	$ 1,665,896	$ 2,092,936
Carrying Value of Acquired Impaired Loans [Roll Forward]
Beginning balance	950,516	1,186,498
Certain Loans Acquired in Transfer Accounted for as Debt Securities, Acquired During Period, at Acquisition, at Fair Value			$ 35,416		$ 154,496
Certain Loans Acquired in Transfer Accounted for as Debt Securities, Accretable Yield, Accretion	21,398	25,067
Reductions for repayments, foreclosures and changes in carrying value, net of accretion	(61,443)	(113,516)
Ending balance	945,887	$ 1,252,545
Loans on the Cost Recovery Method
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans on cost recovery method	1,100			$ 5,300
Commercial
Carrying Value of Acquired Impaired Loans [Roll Forward]
Beginning balance	593,614
Ending balance	594,227
Noncommercial
Carrying Value of Acquired Impaired Loans [Roll Forward]
Beginning balance	356,902
Ending balance	351,660
Construction and land development | Commercial
Carrying Value of Acquired Impaired Loans [Roll Forward]
Beginning balance	33,880
Ending balance	32,799
Mortgage | Commercial
Carrying Value of Acquired Impaired Loans [Roll Forward]
Beginning balance	525,468
Ending balance	526,776
Mortgage | Noncommercial
Carrying Value of Acquired Impaired Loans [Roll Forward]
Beginning balance	302,158
Ending balance	298,662
Revolving mortgage | Noncommercial
Carrying Value of Acquired Impaired Loans [Roll Forward]
Beginning balance	52,471
Ending balance	50,574
Other commercial real estate | Commercial
Carrying Value of Acquired Impaired Loans [Roll Forward]
Beginning balance	17,076
Ending balance	18,050
Commercial and industrial | Commercial
Carrying Value of Acquired Impaired Loans [Roll Forward]
Beginning balance	15,182
Ending balance	14,742
Consumer | Noncommercial
Carrying Value of Acquired Impaired Loans [Roll Forward]
Beginning balance	2,273
Ending balance	2,424
North Milwaukee State Bank
Carrying Value of Acquired Impaired Loans [Roll Forward]
Certain Loans Acquired in Transfer Accounted for as Debt Securities, Acquired During Period, at Acquisition, at Fair Value			35,416
North Milwaukee State Bank | Commercial
Carrying Value of Acquired Impaired Loans [Roll Forward]
Certain Loans Acquired in Transfer Accounted for as Debt Securities, Acquired During Period, at Acquisition, at Fair Value			28,375
North Milwaukee State Bank | Noncommercial
Carrying Value of Acquired Impaired Loans [Roll Forward]
Certain Loans Acquired in Transfer Accounted for as Debt Securities, Acquired During Period, at Acquisition, at Fair Value			7,041
North Milwaukee State Bank | Construction and land development | Commercial
Carrying Value of Acquired Impaired Loans [Roll Forward]
Certain Loans Acquired in Transfer Accounted for as Debt Securities, Acquired During Period, at Acquisition, at Fair Value			139
North Milwaukee State Bank | Mortgage | Commercial
Carrying Value of Acquired Impaired Loans [Roll Forward]
Certain Loans Acquired in Transfer Accounted for as Debt Securities, Acquired During Period, at Acquisition, at Fair Value			25,237
North Milwaukee State Bank | Mortgage | Noncommercial
Carrying Value of Acquired Impaired Loans [Roll Forward]
Certain Loans Acquired in Transfer Accounted for as Debt Securities, Acquired During Period, at Acquisition, at Fair Value			6,128
North Milwaukee State Bank | Revolving mortgage | Noncommercial
Carrying Value of Acquired Impaired Loans [Roll Forward]
Certain Loans Acquired in Transfer Accounted for as Debt Securities, Acquired During Period, at Acquisition, at Fair Value			234
North Milwaukee State Bank | Other commercial real estate | Commercial
Carrying Value of Acquired Impaired Loans [Roll Forward]
Certain Loans Acquired in Transfer Accounted for as Debt Securities, Acquired During Period, at Acquisition, at Fair Value			1,479
North Milwaukee State Bank | Commercial and industrial | Commercial
Carrying Value of Acquired Impaired Loans [Roll Forward]
Certain Loans Acquired in Transfer Accounted for as Debt Securities, Acquired During Period, at Acquisition, at Fair Value			1,520
North Milwaukee State Bank | Consumer | Noncommercial
Carrying Value of Acquired Impaired Loans [Roll Forward]
Certain Loans Acquired in Transfer Accounted for as Debt Securities, Acquired During Period, at Acquisition, at Fair Value			$ 679
PCI Loans
Carrying Value of Acquired Impaired Loans [Roll Forward]
Beginning balance	950,516
Ending balance	945,887
Nonaccruing	$ 7,300			$ 7,600

XML

Loans and Leases (Changes In Carrying Amount Of Accretable Yield) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015	Dec. 31, 2014
Loans and Leases Receivable Disclosure [Abstract]
Certain Loans Acquired in Transfer Accounted for as Debt Securities, Accretable Yield	$ 342,957	$ 422,286	$ 343,856	$ 418,160
Certain Loans Acquired in Transfer Accounted for as Debt Securities, Accretable Yield, Additions	6,176	55,186
Certain Loans Acquired in Transfer Accounted for as Debt Securities, Accretable Yield, Accretion	(21,398)	(25,067)
Certain Loans Acquired in Transfer Accounted for as Debt Securities, Accretable Yield, Reclassifications from Nonaccretable Difference	9,905	1,294
Certain Loans Acquired in Transfer Accounted for as Debt Securities, Accretable Yield, Changes in Expected Cash Flows Not Affecting Nonaccretable Difference	$ 4,418	$ (27,287)

XML

Loans and Leases Loans and Leases (Schedule of Contractually Required Payments Including Principal and Interest, Expected Cash Flows to be Collected and Fair Values) (Details) - USD ($) $ in Thousands	Mar. 11, 2016	Feb. 13, 2015
Investments, Debt and Equity Securities [Abstract]
Certain Loans Acquired in Transfer Accounted for as Debt Securities, Acquired During Period, Contractually Required Payments Receivable at Acquisition	$ 51,098
Certain Loans Acquired in Transfer Accounted for as Debt Securities, Acquired During Period, Cash Flows Expected to be Collected at Acquisition	41,592
Certain Loans Acquired in Transfer Accounted for as Debt Securities, Acquired During Period, at Acquisition, at Fair Value	$ 35,416	$ 154,496

XML

Allowance for Loan and Lease Losses (Summary of Activity In Allowance for Loan and Lease Losses) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015	Dec. 31, 2014
Allowance for Loans and Leases Evaluated for Impairment [Abstract]
Net loans and leases			$ 20,210,906	$ 20,033,774
Loan and Leases Acquired with Deteriorated Credit Quality [Abstract]
Loans and leases acquired with deteriorated credit quality			945,887	950,516	$ 1,252,545	$ 1,186,498
Allowance for loan and lease losses			206,783	206,216
Commercial
Loan and Leases Acquired with Deteriorated Credit Quality [Abstract]
Loans and leases acquired with deteriorated credit quality			594,227	593,614
Commercial | Construction and land development
Loan and Leases Acquired with Deteriorated Credit Quality [Abstract]
Loans and leases acquired with deteriorated credit quality			32,799	33,880
Commercial | Mortgage
Loan and Leases Acquired with Deteriorated Credit Quality [Abstract]
Loans and leases acquired with deteriorated credit quality			526,776	525,468
Commercial | Other commercial real estate
Loan and Leases Acquired with Deteriorated Credit Quality [Abstract]
Loans and leases acquired with deteriorated credit quality			18,050	17,076
Commercial | Commercial and industrial
Loan and Leases Acquired with Deteriorated Credit Quality [Abstract]
Loans and leases acquired with deteriorated credit quality			14,742	15,182
Commercial | Other
Loan and Leases Acquired with Deteriorated Credit Quality [Abstract]
Loans and leases acquired with deteriorated credit quality			1,860	2,008
Noncommercial
Loan and Leases Acquired with Deteriorated Credit Quality [Abstract]
Loans and leases acquired with deteriorated credit quality			351,660	356,902
Noncommercial | Mortgage
Loan and Leases Acquired with Deteriorated Credit Quality [Abstract]
Loans and leases acquired with deteriorated credit quality			298,662	302,158
Noncommercial | Revolving mortgage
Loan and Leases Acquired with Deteriorated Credit Quality [Abstract]
Loans and leases acquired with deteriorated credit quality			50,574	52,471
Noncommercial | Consumer
Loan and Leases Acquired with Deteriorated Credit Quality [Abstract]
Loans and leases acquired with deteriorated credit quality			2,424	2,273
Non-PCI Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Impaired Financing Receivable, Related Allowance			6,776	7,200
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	$ 189,904	$ 182,837
Provision for Loan, Lease, and Other Losses	6,840	8,656
Charge-offs	(6,222)	(6,030)
Recoveries	2,504	2,471
Ending balance	193,026	187,934
Allowance for Loans and Leases Evaluated for Impairment [Abstract]
Loans and leases individually evaluated for impairment			140,680	150,367
Loans and leases collectively evaluated for impairment			19,331,122	19,139,107
Net loans and leases			19,471,802	19,289,474
ALLL for loans and leases individually evaluated for impairment			6,776	7,200
ALLL for loans and leases collectively evaluated for impairment			186,250	182,704
Total allowance for loan and lease losses	189,904	182,837	193,026	189,904	187,934	182,837
Non-PCI Loans | Commercial | Construction and land development
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	16,288	11,961
Provision for Loan, Lease, and Other Losses	943	1,103
Charge-offs	(426)	(18)
Recoveries	80	62
Ending balance	16,885	13,108
Allowance for Loans and Leases Evaluated for Impairment [Abstract]
Loans and leases individually evaluated for impairment			3,247	3,094
Loans and leases collectively evaluated for impairment			623,064	617,258
Net loans and leases			626,311	620,352
ALLL for loans and leases individually evaluated for impairment			83	123
ALLL for loans and leases collectively evaluated for impairment			16,802	16,165
Total allowance for loan and lease losses	16,288	11,961	16,885	16,288	13,108	11,961
Non-PCI Loans | Commercial | Mortgage
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	69,896	85,189
Provision for Loan, Lease, and Other Losses	394	(3,679)
Charge-offs	(90)	(233)
Recoveries	256	761
Ending balance	70,456	82,038
Allowance for Loans and Leases Evaluated for Impairment [Abstract]
Loans and leases individually evaluated for impairment			88,448	95,107
Loans and leases collectively evaluated for impairment			8,265,183	8,179,441
Net loans and leases			8,353,631	8,274,548
ALLL for loans and leases individually evaluated for impairment			3,467	3,370
ALLL for loans and leases collectively evaluated for impairment			66,989	66,526
Total allowance for loan and lease losses	69,896	85,189	70,456	69,896	82,038	85,189
Non-PCI Loans | Commercial | Other commercial real estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	2,168	732
Provision for Loan, Lease, and Other Losses	(104)	458
Charge-offs	0	(169)
Recoveries	143	10
Ending balance	2,207	1,031
Allowance for Loans and Leases Evaluated for Impairment [Abstract]
Loans and leases individually evaluated for impairment			418	427
Loans and leases collectively evaluated for impairment			324,440	320,594
Net loans and leases			324,858	321,021
ALLL for loans and leases individually evaluated for impairment			282	289
ALLL for loans and leases collectively evaluated for impairment			1,925	1,879
Total allowance for loan and lease losses	2,168	732	2,207	2,168	1,031	732
Non-PCI Loans | Commercial | Commercial and industrial
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	43,116	30,727
Provision for Loan, Lease, and Other Losses	2,201	7,546
Charge-offs	(1,317)	(1,713)
Recoveries	479	394
Ending balance	44,479	36,954
Allowance for Loans and Leases Evaluated for Impairment [Abstract]
Loans and leases individually evaluated for impairment			13,720	17,910
Loans and leases collectively evaluated for impairment			2,376,226	2,351,048
Net loans and leases			2,389,946	2,368,958
ALLL for loans and leases individually evaluated for impairment			650	1,118
ALLL for loans and leases collectively evaluated for impairment			43,829	41,998
Total allowance for loan and lease losses	43,116	30,727	44,479	43,116	36,954	30,727
Non-PCI Loans | Commercial | Lease financing
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	5,524	4,286
Provision for Loan, Lease, and Other Losses	(282)	11
Charge-offs	0	(15)
Recoveries	180	11
Ending balance	5,422	4,293
Allowance for Loans and Leases Evaluated for Impairment [Abstract]
Loans and leases individually evaluated for impairment			1,528	1,755
Loans and leases collectively evaluated for impairment			749,764	729,023
Net loans and leases			751,292	730,778
ALLL for loans and leases individually evaluated for impairment			191	213
ALLL for loans and leases collectively evaluated for impairment			5,231	5,311
Total allowance for loan and lease losses	5,524	4,286	5,422	5,524	4,293	4,286
Non-PCI Loans | Commercial | Other
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	1,855	3,184
Provision for Loan, Lease, and Other Losses	(328)	(218)
Charge-offs	(71)	0
Recoveries	321	15
Ending balance	1,777	2,981
Allowance for Loans and Leases Evaluated for Impairment [Abstract]
Loans and leases individually evaluated for impairment			960	1,183
Loans and leases collectively evaluated for impairment			342,917	313,649
Net loans and leases			343,877	314,832
ALLL for loans and leases individually evaluated for impairment			49	0
ALLL for loans and leases collectively evaluated for impairment			1,728	1,855
Total allowance for loan and lease losses	1,855	3,184	1,777	1,855	2,981	3,184
Non-PCI Loans | Noncommercial | Construction and land development
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	1,485	892
Provision for Loan, Lease, and Other Losses	87	118
Charge-offs	0	(22)
Recoveries	3	68
Ending balance	1,575	1,056
Allowance for Loans and Leases Evaluated for Impairment [Abstract]
Loans and leases individually evaluated for impairment			416	784
Loans and leases collectively evaluated for impairment			212,816	219,289
Net loans and leases			213,232	220,073
ALLL for loans and leases individually evaluated for impairment			27	49
ALLL for loans and leases collectively evaluated for impairment			1,548	1,436
Total allowance for loan and lease losses	1,485	892	1,575	1,485	1,056	892
Non-PCI Loans | Noncommercial | Mortgage
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	14,105	10,661
Provision for Loan, Lease, and Other Losses	776	813
Charge-offs	(174)	(284)
Recoveries	20	138
Ending balance	14,727	11,328
Allowance for Loans and Leases Evaluated for Impairment [Abstract]
Loans and leases individually evaluated for impairment			24,025	22,986
Loans and leases collectively evaluated for impairment			2,694,183	2,672,999
Net loans and leases			2,718,208	2,695,985
ALLL for loans and leases individually evaluated for impairment			1,203	1,212
ALLL for loans and leases collectively evaluated for impairment			13,524	12,893
Total allowance for loan and lease losses	14,105	10,661	14,727	14,105	11,328	10,661
Non-PCI Loans | Noncommercial | Revolving mortgage
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	15,971	18,650
Provision for Loan, Lease, and Other Losses	1,158	(462)
Charge-offs	(1,036)	(793)
Recoveries	32	134
Ending balance	16,125	17,529
Allowance for Loans and Leases Evaluated for Impairment [Abstract]
Loans and leases individually evaluated for impairment			6,594	5,883
Loans and leases collectively evaluated for impairment			2,515,308	2,517,223
Net loans and leases			2,521,902	2,523,106
ALLL for loans and leases individually evaluated for impairment			310	299
ALLL for loans and leases collectively evaluated for impairment			15,815	15,672
Total allowance for loan and lease losses	15,971	18,650	16,125	15,971	17,529	18,650
Non-PCI Loans | Noncommercial | Consumer
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	19,496	16,555
Provision for Loan, Lease, and Other Losses	1,995	2,966
Charge-offs	(3,108)	(2,783)
Recoveries	990	878
Ending balance	19,373	17,616
Allowance for Loans and Leases Evaluated for Impairment [Abstract]
Loans and leases individually evaluated for impairment			1,324	1,238
Loans and leases collectively evaluated for impairment			1,227,221	1,218,583
Net loans and leases			1,228,545	1,219,821
ALLL for loans and leases individually evaluated for impairment			514	527
ALLL for loans and leases collectively evaluated for impairment			18,859	18,969
Total allowance for loan and lease losses	19,496	16,555	19,373	19,496	17,616	16,555
PCI Loans
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	16,312	21,629
Provision for Loan, Lease, and Other Losses	(1,997)	(2,864)
Charge-offs	(558)	(1,146)
Recoveries	0	0
Ending balance	13,757	17,619
Allowance for Loans and Leases Evaluated for Impairment [Abstract]
Total allowance for loan and lease losses	16,312	21,629	13,757	16,312	17,619	21,629
Loan and Leases Acquired with Deteriorated Credit Quality [Abstract]
Loans and leases acquired with deteriorated credit quality			945,887	950,516
PCI Loans | Commercial | Construction and land development
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	1,082	150
Provision for Loan, Lease, and Other Losses	(349)	191
Charge-offs	0	0
Recoveries	0	0
Ending balance	733	341
Allowance for Loans and Leases Evaluated for Impairment [Abstract]
Total allowance for loan and lease losses	1,082	150	733	1,082	341	150
PCI Loans | Commercial | Mortgage
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	7,838	10,135
Provision for Loan, Lease, and Other Losses	(980)	(925)
Charge-offs	(108)	(334)
Recoveries	0	0
Ending balance	6,750	8,876
Allowance for Loans and Leases Evaluated for Impairment [Abstract]
Total allowance for loan and lease losses	7,838	10,135	6,750	7,838	8,876	10,135
PCI Loans | Commercial | Other commercial real estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	773	75
Provision for Loan, Lease, and Other Losses	2	119
Charge-offs	(5)	0
Recoveries	0	0
Ending balance	770	194
Allowance for Loans and Leases Evaluated for Impairment [Abstract]
Total allowance for loan and lease losses	773	75	770	773	194	75
PCI Loans | Commercial | Commercial and industrial
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	445	1,240
Provision for Loan, Lease, and Other Losses	(220)	(1,031)
Charge-offs	0	(198)
Recoveries	0	0
Ending balance	225	11
Allowance for Loans and Leases Evaluated for Impairment [Abstract]
Total allowance for loan and lease losses	445	1,240	225	445	11	1,240
PCI Loans | Noncommercial | Construction and land development
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	0	183
Provision for Loan, Lease, and Other Losses	0	(152)
Charge-offs	0	0
Recoveries	0	0
Ending balance	0	31
Allowance for Loans and Leases Evaluated for Impairment [Abstract]
Total allowance for loan and lease losses	0	183	0	0	31	183
PCI Loans | Noncommercial | Mortgage
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	5,398	5,820
Provision for Loan, Lease, and Other Losses	(347)	(863)
Charge-offs	(371)	(85)
Recoveries	0	0
Ending balance	4,680	4,872
Allowance for Loans and Leases Evaluated for Impairment [Abstract]
Total allowance for loan and lease losses	5,398	5,820	4,680	5,398	4,872	5,820
PCI Loans | Noncommercial | Revolving mortgage
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	523	3,999
Provision for Loan, Lease, and Other Losses	(108)	(655)
Charge-offs	0	(73)
Recoveries	0	0
Ending balance	415	3,271
Allowance for Loans and Leases Evaluated for Impairment [Abstract]
Total allowance for loan and lease losses	523	3,999	415	523	3,271	3,999
PCI Loans | Noncommercial | Consumer and Other
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	253	27
Provision for Loan, Lease, and Other Losses	5	452
Charge-offs	(74)	(456)
Recoveries	0	0
Ending balance	184	23
Allowance for Loans and Leases Evaluated for Impairment [Abstract]
Total allowance for loan and lease losses	$ 253	$ 27	184	253	$ 23	$ 27
Loan and Leases Acquired with Deteriorated Credit Quality [Abstract]
Loans and leases acquired with deteriorated credit quality			$ 4,284	$ 4,281

XML

Allowance for Loan and Lease Losses (Allocation of Allowance for Loan and Lease Losses) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	$ 1,665,896	$ 2,092,936
Allowance for loan and lease losses	206,783		$ 206,216
Loans and Leases Receivable, Net Amount	20,210,906		20,033,774
PCI Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Acquired loans which have adverse change in expected cash flows	479,200		469,300
Provision for Loan, Lease, and Other Losses	(1,997)	(2,864)
Financing Receivable, Allowance for Credit Losses, Write-downs	558	1,146
Recoveries	0	0
PCI Loans | Commercial | Construction and land development
Financing Receivable, Allowance for Credit Losses [Line Items]
Provision for Loan, Lease, and Other Losses	(349)	191
Financing Receivable, Allowance for Credit Losses, Write-downs	0	0
Recoveries	0	0
PCI Loans | Commercial | Mortgage
Financing Receivable, Allowance for Credit Losses [Line Items]
Provision for Loan, Lease, and Other Losses	(980)	(925)
Financing Receivable, Allowance for Credit Losses, Write-downs	108	334
Recoveries	0	0
PCI Loans | Commercial | Other commercial real estate
Financing Receivable, Allowance for Credit Losses [Line Items]
Provision for Loan, Lease, and Other Losses	2	119
Financing Receivable, Allowance for Credit Losses, Write-downs	5	0
Recoveries	0	0
PCI Loans | Commercial | Commercial and industrial
Financing Receivable, Allowance for Credit Losses [Line Items]
Provision for Loan, Lease, and Other Losses	(220)	(1,031)
Financing Receivable, Allowance for Credit Losses, Write-downs	0	198
Recoveries	0	0
PCI Loans | Noncommercial | Construction and land development
Financing Receivable, Allowance for Credit Losses [Line Items]
Provision for Loan, Lease, and Other Losses	0	(152)
Financing Receivable, Allowance for Credit Losses, Write-downs	0	0
Recoveries	0	0
PCI Loans | Noncommercial | Consumer and Other
Financing Receivable, Allowance for Credit Losses [Line Items]
Provision for Loan, Lease, and Other Losses	5	452
Financing Receivable, Allowance for Credit Losses, Write-downs	74	456
Recoveries	0	0
PCI Loans | Noncommercial | Mortgage
Financing Receivable, Allowance for Credit Losses [Line Items]
Provision for Loan, Lease, and Other Losses	(347)	(863)
Financing Receivable, Allowance for Credit Losses, Write-downs	371	85
Recoveries	0	0
PCI Loans | Noncommercial | Revolving mortgage
Financing Receivable, Allowance for Credit Losses [Line Items]
Provision for Loan, Lease, and Other Losses	(108)	(655)
Financing Receivable, Allowance for Credit Losses, Write-downs	0	73
Recoveries	0	0
Non-PCI Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Total impaired noncovered loans and leases	140,680		150,367
Unpaid principal balance	156,941		167,966
Impaired Financing Receivable, Related Allowance	6,776		7,200
ALLL for loans and leases individually evaluated for impairment	6,776		7,200
Impaired Financing Receivable, with Related Allowance, Recorded Investment	59,113		66,861
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	81,567		83,506
Financing Receivable, Individually Evaluated for Impairment	140,680		150,367
Average balance	146,442	121,995
Interest income recognized	1,225	1,093
Provision for Loan, Lease, and Other Losses	6,840	8,656
Financing Receivable, Allowance for Credit Losses, Write-downs	6,222	6,030
Recoveries	2,504	2,471
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	186,250		182,704
Financing Receivable, Collectively Evaluated for Impairment	19,331,122		19,139,107
Loans and Leases Receivable, Net Amount	19,471,802		19,289,474
Non-PCI Loans | Commercial | Construction and land development
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	4,602		4,428
ALLL for loans and leases individually evaluated for impairment	83		123
Impaired Financing Receivable, with Related Allowance, Recorded Investment	1,356		1,623
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	1,891		1,471
Financing Receivable, Individually Evaluated for Impairment	3,247		3,094
Average balance	3,164	3,052
Interest income recognized	41	35
Provision for Loan, Lease, and Other Losses	943	1,103
Financing Receivable, Allowance for Credit Losses, Write-downs	426	18
Recoveries	80	62
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	16,802		16,165
Financing Receivable, Collectively Evaluated for Impairment	623,064		617,258
Loans and Leases Receivable, Net Amount	626,311		620,352
Non-PCI Loans | Commercial | Mortgage
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	97,320		103,763
ALLL for loans and leases individually evaluated for impairment	3,467		3,370
Impaired Financing Receivable, with Related Allowance, Recorded Investment	37,464		41,793
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	50,984		53,314
Financing Receivable, Individually Evaluated for Impairment	88,448		95,107
Average balance	92,945	80,553
Interest income recognized	766	769
Provision for Loan, Lease, and Other Losses	394	(3,679)
Financing Receivable, Allowance for Credit Losses, Write-downs	90	233
Recoveries	256	761
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	66,989		66,526
Financing Receivable, Collectively Evaluated for Impairment	8,265,183		8,179,441
Loans and Leases Receivable, Net Amount	8,353,631		8,274,548
Non-PCI Loans | Commercial | Other commercial real estate
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	858		863
ALLL for loans and leases individually evaluated for impairment	282		289
Impaired Financing Receivable, with Related Allowance, Recorded Investment	297		305
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	121		122
Financing Receivable, Individually Evaluated for Impairment	418		427
Average balance	423	551
Interest income recognized	5	1
Provision for Loan, Lease, and Other Losses	(104)	458
Financing Receivable, Allowance for Credit Losses, Write-downs	0	169
Recoveries	143	10
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	1,925		1,879
Financing Receivable, Collectively Evaluated for Impairment	324,440		320,594
Loans and Leases Receivable, Net Amount	324,858		321,021
Non-PCI Loans | Commercial | Commercial and industrial
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	16,692		21,455
ALLL for loans and leases individually evaluated for impairment	650		1,118
Impaired Financing Receivable, with Related Allowance, Recorded Investment	5,356		8,544
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	8,364		9,366
Financing Receivable, Individually Evaluated for Impairment	13,720		17,910
Average balance	15,551	14,229
Interest income recognized	151	103
Provision for Loan, Lease, and Other Losses	2,201	7,546
Financing Receivable, Allowance for Credit Losses, Write-downs	1,317	1,713
Recoveries	479	394
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	43,829		41,998
Financing Receivable, Collectively Evaluated for Impairment	2,376,226		2,351,048
Loans and Leases Receivable, Net Amount	2,389,946		2,368,958
Non-PCI Loans | Commercial | Lease financing
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	1,577		1,956
ALLL for loans and leases individually evaluated for impairment	191		213
Impaired Financing Receivable, with Related Allowance, Recorded Investment	1,304		1,651
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	224		104
Financing Receivable, Individually Evaluated for Impairment	1,528		1,755
Average balance	1,657	1,590
Interest income recognized	20	18
Provision for Loan, Lease, and Other Losses	(282)	11
Financing Receivable, Allowance for Credit Losses, Write-downs	0	15
Recoveries	180	11
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	5,231		5,311
Financing Receivable, Collectively Evaluated for Impairment	749,764		729,023
Loans and Leases Receivable, Net Amount	751,292		730,778
Non-PCI Loans | Commercial | Other
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	1,037		1,260
ALLL for loans and leases individually evaluated for impairment	49		0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	898		0
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	62		1,183
Financing Receivable, Individually Evaluated for Impairment	960		1,183
Average balance	1,072	1,990
Interest income recognized	14	0
Provision for Loan, Lease, and Other Losses	(328)	(218)
Financing Receivable, Allowance for Credit Losses, Write-downs	71	0
Recoveries	321	15
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	1,728		1,855
Financing Receivable, Collectively Evaluated for Impairment	342,917		313,649
Loans and Leases Receivable, Net Amount	343,877		314,832
Non-PCI Loans | Noncommercial | Construction and land development
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	416		784
ALLL for loans and leases individually evaluated for impairment	27		49
Impaired Financing Receivable, with Related Allowance, Recorded Investment	416		693
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	0		91
Financing Receivable, Individually Evaluated for Impairment	416		784
Average balance	556	658
Interest income recognized	6	7
Provision for Loan, Lease, and Other Losses	87	118
Financing Receivable, Allowance for Credit Losses, Write-downs	0	22
Recoveries	3	68
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	1,548		1,436
Financing Receivable, Collectively Evaluated for Impairment	212,816		219,289
Loans and Leases Receivable, Net Amount	213,232		220,073
Non-PCI Loans | Noncommercial | Mortgage
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	24,989		25,043
ALLL for loans and leases individually evaluated for impairment	1,203		1,212
Impaired Financing Receivable, with Related Allowance, Recorded Investment	10,001		10,097
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	14,024		12,889
Financing Receivable, Individually Evaluated for Impairment	24,025		22,986
Average balance	23,500	15,364
Interest income recognized	172	125
Provision for Loan, Lease, and Other Losses	776	813
Financing Receivable, Allowance for Credit Losses, Write-downs	174	284
Recoveries	20	138
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	13,524		12,893
Financing Receivable, Collectively Evaluated for Impairment	2,694,183		2,672,999
Loans and Leases Receivable, Net Amount	2,718,208		2,695,985
Non-PCI Loans | Noncommercial | Revolving mortgage
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	8,049		7,120
ALLL for loans and leases individually evaluated for impairment	310		299
Impaired Financing Receivable, with Related Allowance, Recorded Investment	1,059		1,105
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	5,535		4,778
Financing Receivable, Individually Evaluated for Impairment	6,594		5,883
Average balance	6,309	2,986
Interest income recognized	32	16
Provision for Loan, Lease, and Other Losses	1,158	(462)
Financing Receivable, Allowance for Credit Losses, Write-downs	1,036	793
Recoveries	32	134
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	15,815		15,672
Financing Receivable, Collectively Evaluated for Impairment	2,515,308		2,517,223
Loans and Leases Receivable, Net Amount	2,521,902		2,523,106
Non-PCI Loans | Noncommercial | Consumer
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	1,401		1,294
ALLL for loans and leases individually evaluated for impairment	514		527
Impaired Financing Receivable, with Related Allowance, Recorded Investment	962		1,050
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	362		188
Financing Receivable, Individually Evaluated for Impairment	1,324		1,238
Average balance	1,265	1,022
Interest income recognized	18	19
Provision for Loan, Lease, and Other Losses	1,995	2,966
Financing Receivable, Allowance for Credit Losses, Write-downs	3,108	2,783
Recoveries	990	$ 878
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	18,859		18,969
Financing Receivable, Collectively Evaluated for Impairment	1,227,221		1,218,583
Loans and Leases Receivable, Net Amount	$ 1,228,545		$ 1,219,821

XML

Allowance for Loan and Lease Losses (Troubled Debt Restructuring) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2016 USD ($) loans	Mar. 31, 2015 USD ($) loans	Dec. 31, 2015 USD ($)
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	$ 141,397		$ 144,843
Non-PCI Loans
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	82	59
Financing Receivable, Modifications, Recorded Investment	$ 111,064		114,192
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 6,062	$ 11,718
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	32	8
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 1,974	$ 4,941
PCI Loans
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	4	7
Financing Receivable, Modifications, Recorded Investment	$ 30,333		30,651
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 2,030	$ 470
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 65
Commercial
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	100,640		104,978
Commercial | Construction and land development
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	3,905		3,881
Commercial | Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	83,973		84,540
Commercial | Other commercial real estate
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	1,698		1,840
Commercial | Commercial and industrial
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	8,922		12,174
Commercial | Lease financing
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	1,182		1,360
Commercial | Other
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	960		1,183
Noncommercial
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	40,757		39,865
Noncommercial | Construction and land development
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	416		784
Noncommercial | Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	33,231		32,556
Noncommercial | Revolving mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	5,803		5,305
Noncommercial | Consumer and Other
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	1,307		1,220
Accruing
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	113,729		113,296
Accruing | Non-PCI Loans
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	84,319		84,065
Accruing | PCI Loans
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	29,410		29,231
Accruing | Commercial
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	81,871		82,394
Accruing | Commercial | Construction and land development
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	3,637		3,624
Accruing | Commercial | Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	66,385		65,812
Accruing | Commercial | Other commercial real estate
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	1,614		1,751
Accruing | Commercial | Commercial and industrial
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	8,139		8,833
Accruing | Commercial | Lease financing
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	1,136		1,191
Accruing | Commercial | Other
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	960		1,183
Accruing | Noncommercial
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	31,858		30,902
Accruing | Noncommercial | Construction and land development
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	416		784
Accruing | Noncommercial | Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	26,685		25,427
Accruing | Noncommercial | Revolving mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	3,624		3,600
Accruing | Noncommercial | Consumer and Other
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	1,133		1,091
Nonaccruing
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	27,668		31,547
Nonaccruing | Non-PCI Loans
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	26,745		30,127
Nonaccruing | PCI Loans
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	923		1,420
Nonaccruing | Commercial
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	18,769		22,584
Nonaccruing | Commercial | Construction and land development
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	268		257
Nonaccruing | Commercial | Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	17,588		18,728
Nonaccruing | Commercial | Other commercial real estate
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	84		89
Nonaccruing | Commercial | Commercial and industrial
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	783		3,341
Nonaccruing | Commercial | Lease financing
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	46		169
Nonaccruing | Commercial | Other
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	0		0
Nonaccruing | Noncommercial
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	8,899		8,963
Nonaccruing | Noncommercial | Construction and land development
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	0		0
Nonaccruing | Noncommercial | Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	6,546		7,129
Nonaccruing | Noncommercial | Revolving mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	2,179		1,705
Nonaccruing | Noncommercial | Consumer and Other
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	$ 174		$ 129
Interest only period provided | Non-PCI Loans
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	1	1
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 252	$ 3,796
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	1	1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 252	$ 3,796
Interest only period provided | Commercial | Mortgage | Non-PCI Loans
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	1	0
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 252	$ 0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	1	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 252	$ 0
Interest only period provided | Commercial | Commercial and industrial | Non-PCI Loans
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	0	1
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 3,796
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 3,796
Loan term extension | Non-PCI Loans
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	3	6
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 438	$ 770
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 220
Loan term extension | Commercial | Construction and land development | Non-PCI Loans
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	1	1
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 404	$ 220
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 220
Loan term extension | Commercial | Mortgage | Non-PCI Loans
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	1	3
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 535
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 0
Loan term extension | Noncommercial | Consumer | Non-PCI Loans
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	0	1
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 5
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 0
Loan term extension | Noncommercial | Mortgage | Non-PCI Loans
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	1	0
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 34	$ 0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 0
Loan term extension | Noncommercial | Revolving mortgage | Non-PCI Loans
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	0	1
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 10
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 0
Below market interest rate | Non-PCI Loans
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	62	45
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 4,813	$ 6,866
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	18	4
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 1,370	$ 778
Below market interest rate | PCI Loans
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	4	7
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 2,030	$ 470
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 65
Below market interest rate | Commercial | Construction and land development | Non-PCI Loans
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	1	2
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 18	$ 47
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	1	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 18	$ 0
Below market interest rate | Commercial | Construction and land development | PCI Loans
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	1	0
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 14	$ 0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 0
Below market interest rate | Commercial | Mortgage | Non-PCI Loans
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	10	9
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 1,422	$ 3,541
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	4	2
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 511	$ 733
Below market interest rate | Commercial | Mortgage | PCI Loans
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	3	0
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 2,016	$ 0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 0
Below market interest rate | Commercial | Commercial and industrial | Non-PCI Loans
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	3	3
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 12	$ 172
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 0
Below market interest rate | Commercial | Commercial and industrial | PCI Loans
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	0	0
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 65
Below market interest rate | Noncommercial | Construction and land development | Non-PCI Loans
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	0	2
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 396
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 0
Below market interest rate | Noncommercial | Consumer | Non-PCI Loans
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	2	3
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 73	$ 34
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 0
Below market interest rate | Noncommercial | Mortgage | Non-PCI Loans
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	46	23
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 3,288	$ 708
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	13	2
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 841	$ 45
Below market interest rate | Noncommercial | Mortgage | PCI Loans
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	0	7
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 470
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 0
Below market interest rate | Noncommercial | Other | Non-PCI Loans
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	0	1
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 1,950
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 0
Below market interest rate | Noncommercial | Revolving mortgage | Non-PCI Loans
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	0	2
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 18
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 0
Discharged from bankruptcy | Non-PCI Loans
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	16	7
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 559	$ 286
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	13	2
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 352	$ 147
Discharged from bankruptcy | Commercial | Construction and land development | Non-PCI Loans
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	0	0
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	1	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 16	$ 0
Discharged from bankruptcy | Noncommercial | Consumer | Non-PCI Loans
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	7	0
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 68	$ 0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	4	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 59	$ 0
Discharged from bankruptcy | Noncommercial | Mortgage | Non-PCI Loans
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	1	2
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 144	$ 68
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 0
Discharged from bankruptcy | Noncommercial | Revolving mortgage | Non-PCI Loans
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	8	5
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 347	$ 218
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	8	2
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 277	$ 147

XML

Allowance for Loan and Lease Losses (Note Restructurings During Period) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2016 USD ($) loans	Mar. 31, 2015 USD ($) loans
PCI Loans
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	4	7
Financing Receivable, Modifications, Post-Modification Recorded Investment | $	$ 2,030	$ 470
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $	$ 0	$ 65
PCI Loans | Below market interest rate
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	4	7
Financing Receivable, Modifications, Post-Modification Recorded Investment | $	$ 2,030	$ 470
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $	$ 0	$ 65
PCI Loans | Below market interest rate | Commercial | Construction and land development
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	1	0
Financing Receivable, Modifications, Post-Modification Recorded Investment | $	$ 14	$ 0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $	$ 0	$ 0
PCI Loans | Below market interest rate | Commercial | Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	3	0
Financing Receivable, Modifications, Post-Modification Recorded Investment | $	$ 2,016	$ 0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $	$ 0	$ 0
PCI Loans | Below market interest rate | Commercial | Commercial and industrial
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	0	0
Financing Receivable, Modifications, Post-Modification Recorded Investment | $	$ 0	$ 0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $	$ 0	$ 65
PCI Loans | Below market interest rate | Noncommercial | Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	0	7
Financing Receivable, Modifications, Post-Modification Recorded Investment | $	$ 0	$ 470
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $	$ 0	$ 0
Non-PCI Loans
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	82	59
Financing Receivable, Modifications, Post-Modification Recorded Investment | $	$ 6,062	$ 11,718
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	32	8
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $	$ 1,974	$ 4,941
Non-PCI Loans | Loan term extension
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	3	6
Financing Receivable, Modifications, Post-Modification Recorded Investment | $	$ 438	$ 770
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $	$ 0	$ 220
Non-PCI Loans | Loan term extension | Commercial | Construction and land development
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	1	1
Financing Receivable, Modifications, Post-Modification Recorded Investment | $	$ 404	$ 220
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $	$ 0	$ 220
Non-PCI Loans | Loan term extension | Commercial | Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	1	3
Financing Receivable, Modifications, Post-Modification Recorded Investment | $	$ 0	$ 535
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $	$ 0	$ 0
Non-PCI Loans | Loan term extension | Noncommercial | Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	1	0
Financing Receivable, Modifications, Post-Modification Recorded Investment | $	$ 34	$ 0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $	$ 0	$ 0
Non-PCI Loans | Loan term extension | Noncommercial | Revolving mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	0	1
Financing Receivable, Modifications, Post-Modification Recorded Investment | $	$ 0	$ 10
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $	$ 0	$ 0
Non-PCI Loans | Loan term extension | Noncommercial | Consumer
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	0	1
Financing Receivable, Modifications, Post-Modification Recorded Investment | $	$ 0	$ 5
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $	$ 0	$ 0
Non-PCI Loans | Interest only period provided
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	1	1
Financing Receivable, Modifications, Post-Modification Recorded Investment | $	$ 252	$ 3,796
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	1	1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $	$ 252	$ 3,796
Non-PCI Loans | Interest only period provided | Commercial | Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	1	0
Financing Receivable, Modifications, Post-Modification Recorded Investment | $	$ 252	$ 0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	1	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $	$ 252	$ 0
Non-PCI Loans | Interest only period provided | Commercial | Commercial and industrial
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	0	1
Financing Receivable, Modifications, Post-Modification Recorded Investment | $	$ 0	$ 3,796
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $	$ 0	$ 3,796
Non-PCI Loans | Below market interest rate
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	62	45
Financing Receivable, Modifications, Post-Modification Recorded Investment | $	$ 4,813	$ 6,866
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	18	4
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $	$ 1,370	$ 778
Non-PCI Loans | Below market interest rate | Commercial | Construction and land development
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	1	2
Financing Receivable, Modifications, Post-Modification Recorded Investment | $	$ 18	$ 47
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	1	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $	$ 18	$ 0
Non-PCI Loans | Below market interest rate | Commercial | Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	10	9
Financing Receivable, Modifications, Post-Modification Recorded Investment | $	$ 1,422	$ 3,541
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	4	2
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $	$ 511	$ 733
Non-PCI Loans | Below market interest rate | Commercial | Commercial and industrial
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	3	3
Financing Receivable, Modifications, Post-Modification Recorded Investment | $	$ 12	$ 172
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $	$ 0	$ 0
Non-PCI Loans | Below market interest rate | Noncommercial | Construction and land development
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	0	2
Financing Receivable, Modifications, Post-Modification Recorded Investment | $	$ 0	$ 396
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $	$ 0	$ 0
Non-PCI Loans | Below market interest rate | Noncommercial | Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	46	23
Financing Receivable, Modifications, Post-Modification Recorded Investment | $	$ 3,288	$ 708
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	13	2
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $	$ 841	$ 45
Non-PCI Loans | Below market interest rate | Noncommercial | Revolving mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	0	2
Financing Receivable, Modifications, Post-Modification Recorded Investment | $	$ 0	$ 18
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $	$ 0	$ 0
Non-PCI Loans | Below market interest rate | Noncommercial | Consumer
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	2	3
Financing Receivable, Modifications, Post-Modification Recorded Investment | $	$ 73	$ 34
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $	$ 0	$ 0
Non-PCI Loans | Below market interest rate | Noncommercial | Other
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	0	1
Financing Receivable, Modifications, Post-Modification Recorded Investment | $	$ 0	$ 1,950
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $	$ 0	$ 0
Non-PCI Loans | Discharged from bankruptcy
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	16	7
Financing Receivable, Modifications, Post-Modification Recorded Investment | $	$ 559	$ 286
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	13	2
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $	$ 352	$ 147
Non-PCI Loans | Discharged from bankruptcy | Commercial | Construction and land development
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	0	0
Financing Receivable, Modifications, Post-Modification Recorded Investment | $	$ 0	$ 0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	1	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $	$ 16	$ 0
Non-PCI Loans | Discharged from bankruptcy | Noncommercial | Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	1	2
Financing Receivable, Modifications, Post-Modification Recorded Investment | $	$ 144	$ 68
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $	$ 0	$ 0
Non-PCI Loans | Discharged from bankruptcy | Noncommercial | Revolving mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	8	5
Financing Receivable, Modifications, Post-Modification Recorded Investment | $	$ 347	$ 218
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	8	2
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $	$ 277	$ 147
Non-PCI Loans | Discharged from bankruptcy | Noncommercial | Consumer
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | loans	7	0
Financing Receivable, Modifications, Post-Modification Recorded Investment | $	$ 68	$ 0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans	4	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $	$ 59	$ 0

XML

Other Real Estate Owned (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Real Estate Properties [Line Items]
Mortgage Loans in Process of Foreclosure, Amount	$ 17,600		$ 15,600
Covered
Beginning balance	6,817	$ 22,982
Additions	3,936	4,244
Sales	(523)	(8,970)
Writedowns	(496)	(954)
Ending balance	9,734	17,302
Noncovered
Beginning balance	58,742	70,454
Additions	6,044	17,084
Sales	(7,547)	(13,573)
Writedowns	(2,235)	(1,275)
Ending balance	55,334	72,690
Total
Beginning balance	65,559	93,436
Additions	9,980	21,328
Sales	(8,070)	(22,543)
Writedowns	(2,731)	(2,229)
Ending balance	65,068	$ 89,992
Mortgage
Total
Beginning balance	16,100
Ending balance	14,900
North Milwaukee State Bank
Covered
Additions	0
Noncovered
Additions	330
Total
Additions	$ 330

XML

FDIC Loss Share Receivable (Changes in Receivable from FDIC) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015	Dec. 31, 2014
FDIC Loss Share Receivable [Abstract]
FDIC Indemnification Asset	$ 7,474	$ 21,340	$ 4,054	$ 28,701
Receivable From FDIC For Loss Share Agreements [Roll Forward]
Accretion of discounts and premiums, net	(2,375)	(5,031)
Receipt of payments from FDIC	9,871	5,762
Post-acquisition and other adjustments, net	$ (4,076)	$ (8,092)

XML

Mortgage Servicing Rights (MSR Carrying Value) ((Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015	Dec. 31, 2014
Servicing Asset at Amortized Cost [Line Items]
Mortgage servicing rights	$ 17,186	$ 16,436	$ 19,351	$ 16,688
Amortization of Mortgage Servicing Rights (MSRs)	(1,268)	(852)
Servicing Asset at Amortized Cost, Additions	977	662
Valuation allowance provision	$ (1,874)	$ (62)

XML

Mortgage Servicing Rights (Valuation allowance) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015	Dec. 31, 2014
Valuation Allowance for Impairment of Recognized Servicing Assets [Line Items]
Valuation allowance	$ 1,969	$ 912	$ 95	$ 850
Valuation allowance provision	$ 1,874	$ 62

XML

Mortgage Servicing Rights (Economic Assumptions) (Details) - $ / loans	3 Months Ended	12 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Servicing Asset Key Economic Assumptions [Line Items]
Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Prepayment Speed	13.32%	11.01%
Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Cost to Service Loans	62.75	56.61
Conventional fixed loans
Servicing Asset Key Economic Assumptions [Line Items]
Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Discount Rate	8.77%	9.31%
All loans excluding conventional fixed loans
Servicing Asset Key Economic Assumptions [Line Items]
Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Discount Rate	9.77%	10.31%

XML

Mortgage Servicing Rights (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015	Dec. 31, 2014
Mortgage Servicing Rights [Abstract]
Residential Mortgage Loans Serviced	$ 2,200,000		$ 2,150,000
Mortgage servicing rights	17,186	$ 16,436	$ 19,351	$ 16,688
Contractually Specified Servicing Fees, Late Fees, and Ancillary Fees Earned in Exchange for Servicing Financial Assets	1,400	1,300
Amortization of Mortgage Servicing Rights (MSRs)	1,268	852
Valuation allowance provision	$ 1,874	$ 62

XML

Repurchase Agreements (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase, Fair Value of Collateral	$ 787,000	$ 722,000
Securities Sold under Agreements to Repurchase	716,685	622,182
Securities Sold under Agreements to Repurchase, Gross	716,685	622,182
Government Agency
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	4,280	4,276
U. S. Treasury
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	712,405	617,906
Overnight and continuous
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	686,685	592,182
Overnight and continuous | Government Agency
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	0	0
Overnight and continuous | U. S. Treasury
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	686,685	592,182
Up to 30 days
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	0	0
Up to 30 days | Government Agency
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	0	0
Up to 30 days | U. S. Treasury
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	0	0
30 - 90 days
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	0	0
30 - 90 days | Government Agency
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	0	0
30 - 90 days | U. S. Treasury
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	0	0
Greater than 90 days
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	30,000	30,000
Greater than 90 days | Government Agency
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	4,280	4,276
Greater than 90 days | U. S. Treasury
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	$ 25,720	$ 25,724

XML

Estimated Fair Values (Estimated Fair Values For Certain Financial Assets And Financial Liabilities) (Details) - USD ($) $ in Thousands		Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015	Dec. 31, 2014
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and due from banks		$ 457,758	$ 534,086
Overnight investments		2,871,105	2,063,132
Investment securities available for sale		6,687,289	6,861,293
Investment securities held to maturity		194	255
Loans held for sale		66,988	59,766
Loans and Leases Receivable, Net Amount		20,210,906	20,033,774
FDIC Indemnification Asset		7,474	4,054	$ 21,340	$ 28,701
Income earned not collected		73,518	70,036
Mortgage servicing rights		17,186	19,351	$ 16,436	$ 16,688
Deposits		27,365,245	26,930,755
FDIC loss share payable		128,243	126,453
Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and due from banks		457,758	534,086
Overnight investments		2,871,105	2,063,132
Investment securities available for sale		6,687,289	6,861,293
Investment securities held to maturity		194	255
Loans held for sale		66,988	59,766
Loans and Leases Receivable, Net Amount		20,210,906	20,033,774
FDIC Indemnification Asset	[1]	7,474	4,054
Income earned not collected		73,518	70,036
Stock issued by Federal Home Loan Bank		40,407	37,511
Mortgage servicing rights		17,186	19,351
Deposits		27,365,245	26,930,755
Short-term borrowings		689,236	594,733
Long-term obligations		779,087	704,155
FDIC loss share payable		128,243	126,453
Accrued interest payable		6,037	5,713
Interest rate swap		729	1,429
Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and due from banks		457,758	534,086
Overnight investments		2,871,105	2,063,132
Investment securities available for sale		6,687,289	6,861,293
Investment securities held to maturity		203	265
Loans held for sale		66,988	59,766
Loans and Leases Receivable, Net Amount		19,703,240	19,353,325
FDIC Indemnification Asset	[1]	7,474	4,054
Income earned not collected		73,518	70,036
Stock issued by Federal Home Loan Bank		40,407	37,511
Mortgage servicing rights		17,234	19,495
Deposits		26,904,946	26,164,472
Short-term borrowings		689,236	594,733
Long-term obligations		808,765	718,102
FDIC loss share payable		136,646	131,894
Accrued interest payable		6,037	5,713
Interest rate swap		$ 729	$ 1,429

[1] (1) At March 31, 2016 and December 31, 2015, the carrying value of the FDIC receivable approximates the fair value due to the short term nature of the majority of loss share agreements.

XML

Estimated Fair Values (Narrative) (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total investment securities available for sale, fair value	$ 6,687,289	$ 6,861,293
Liability transfers between Level 1 and Level 2	0
Asset transfers between Level 1 and Level 2	0
Liability transfers between Level 2 and Level 1	0
Asset transfers between Level 2 and Level 1	0
Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liability measured at fair value on nonrecurring basis	$ 0	$ 0
Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discounts for collateral value estimates due to estimated holding and selling costs (percent)	10.00%	10.00%
Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discounts for collateral value estimates due to estimated holding and selling costs (percent)	14.00%	14.00%

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Estimated Fair Values (Assets And Liabilities Carried At Fair Value On A Recurring Basis) (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	$ 6,687,289	$ 6,861,293
Fair Value, Measurements, Recurring | Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	6,687,289	6,861,293
Loans held for sale	66,988	59,766
Interest rate swaps accounted for as cash flow hedges	729	1,429
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets and Liabilities (Level 1 Inputs)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	7,400	1,668
Loans held for sale	0	0
Interest rate swaps accounted for as cash flow hedges	0	0
Fair Value, Measurements, Recurring | Quoted Prices for Similar Assets and Liabilities (Level 2 Inputs)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	6,679,889	6,859,625
Loans held for sale	66,988	59,766
Interest rate swaps accounted for as cash flow hedges	729	1,429
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3 Inputs)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	0	0
Loans held for sale	0	0
Interest rate swaps accounted for as cash flow hedges	0	0
Fair Value, Measurements, Recurring | U.S. Treasury | Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	1,541,215	1,674,882
Fair Value, Measurements, Recurring | U.S. Treasury | Quoted Prices in Active Markets for Identical Assets and Liabilities (Level 1 Inputs)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	0	0
Fair Value, Measurements, Recurring | U.S. Treasury | Quoted Prices for Similar Assets and Liabilities (Level 2 Inputs)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	1,541,215	1,674,882
Fair Value, Measurements, Recurring | U.S. Treasury | Significant Unobservable Inputs (Level 3 Inputs)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	0	0
Fair Value, Measurements, Recurring | Government Agency | Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	356,157	498,660
Fair Value, Measurements, Recurring | Government Agency | Quoted Prices in Active Markets for Identical Assets and Liabilities (Level 1 Inputs)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	0	0
Fair Value, Measurements, Recurring | Government Agency | Quoted Prices for Similar Assets and Liabilities (Level 2 Inputs)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	356,157	498,660
Fair Value, Measurements, Recurring | Government Agency | Significant Unobservable Inputs (Level 3 Inputs)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	0	0
Fair Value, Measurements, Recurring | Mortgage Backed Securities | Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	4,727,282	4,668,198
Fair Value, Measurements, Recurring | Mortgage Backed Securities | Quoted Prices in Active Markets for Identical Assets and Liabilities (Level 1 Inputs)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	0	0
Fair Value, Measurements, Recurring | Mortgage Backed Securities | Quoted Prices for Similar Assets and Liabilities (Level 2 Inputs)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	4,727,282	4,668,198
Fair Value, Measurements, Recurring | Mortgage Backed Securities | Significant Unobservable Inputs (Level 3 Inputs)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	0	0
Fair Value, Measurements, Recurring | Other Debt Obligations | Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	10,540	10,660
Fair Value, Measurements, Recurring | Other Debt Obligations | Quoted Prices in Active Markets for Identical Assets and Liabilities (Level 1 Inputs)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	0	0
Fair Value, Measurements, Recurring | Other Debt Obligations | Quoted Prices for Similar Assets and Liabilities (Level 2 Inputs)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	10,540	10,660
Fair Value, Measurements, Recurring | Other Debt Obligations | Significant Unobservable Inputs (Level 3 Inputs)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	0	0
Fair Value, Measurements, Recurring | Equity Securities | Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	52,095	8,893
Fair Value, Measurements, Recurring | Equity Securities | Quoted Prices in Active Markets for Identical Assets and Liabilities (Level 1 Inputs)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	7,400	1,668
Fair Value, Measurements, Recurring | Equity Securities | Quoted Prices for Similar Assets and Liabilities (Level 2 Inputs)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	44,695	7,225
Fair Value, Measurements, Recurring | Equity Securities | Significant Unobservable Inputs (Level 3 Inputs)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	$ 0	$ 0

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Estimated Fair Values (Assets And Liabilities Carried At Fair Value On A Nonrecurring Basis) (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015	Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Real Estate, Non Covered	$ 55,334	$ 58,742	$ 72,690	$ 70,454
Other Real Estate, Covered	9,734	6,817	17,302	22,982
Mortgage servicing rights	17,186	19,351	$ 16,436	$ 16,688
Fair Value, Measurements, Nonrecurring | Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans not covered by loss share agreements	52,337	64,197
Other Real Estate, Non Covered	17,278	44,571
Other Real Estate, Covered	6,247	4,403
Mortgage servicing rights	16,800	17,997
Fair Value, Measurements, Nonrecurring | Quoted Prices in Active Markets for Identical Assets and Liabilities (Level 1 Inputs)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans not covered by loss share agreements	0	0
Other Real Estate, Non Covered	0	0
Other Real Estate, Covered	0	0
Mortgage servicing rights	0	0
Fair Value, Measurements, Nonrecurring | Quoted Prices for Similar Assets and Liabilities (Level 2 Inputs)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans not covered by loss share agreements	0	0
Other Real Estate, Non Covered	0	0
Other Real Estate, Covered	0	0
Mortgage servicing rights	0	0
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3 Inputs)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans not covered by loss share agreements	52,337	64,197
Other Real Estate, Non Covered	17,278	44,571
Other Real Estate, Covered	6,247	4,403
Mortgage servicing rights	$ 16,800	$ 17,997

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Estimated Fair Values Estimated Fair Values (Fair Value Option) (Details) - Loans Held For Sale - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (Losses) From Fair Value Changes	$ 763	$ 430
Fair Value Of Items For Which Fair Value Option Was Elected Assets	66,988		$ 59,766
Aggregate Unpaid Principal Balance Of Items For Which Fair Value Option Was Elected Assets	65,350		58,890
Fair Value Option Aggregate Difference Assets	$ 1,638		$ 876

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Employee Benefit Plans (Components Of Pension Expense) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
BancShares Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	$ 3,220	$ 3,600
Interest cost	7,180	6,748
Expected return on assets	(9,159)	(8,295)
Amortization of prior service cost	52	53
Amortization of net actuarial loss	1,600	2,833
Total pension expense	2,893	4,939
Bancorporation Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	650	933
Interest cost	1,675	1,628
Expected return on assets	(2,779)	(2,869)
Total pension expense	$ (454)	$ (308)

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Employee Benefit Plans (Narrative) (Details) $ in Millions	3 Months Ended
	Mar. 31, 2016 USD ($)
BancShares Plan
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Contributions by Employer	$ 0.0
Bancorporation Plan
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Contributions by Employer	$ 0.0

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Commitments and Contingencies (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015	Dec. 31, 2014
Guarantor Obligations [Line Items]
Qualified Affordable Housing Project Investments	$ 110,000	$ 85,600
FDIC Indemnification Asset	7,474	4,054	$ 21,340	$ 28,701
FDIC loss share payable	128,243	126,453
Commitments to Extend Credit
Guarantor Obligations [Line Items]
Unused Commitments to Extend Credit	8,080,000	7,950,000
Qualified Affordable Housing Project Investments, Commitment	58,100	41,800
Standby Letters of Credit
Guarantor Obligations [Line Items]
Guarantor obligations amount	$ 80,300	$ 77,900
Recourse Obligation on Mortgage Loans Sold
Guarantor Obligations [Line Items]
Recourse Period, Maximum1	120 days
Obligation to Repurchase Receivables Sold
Guarantor Obligations [Line Items]
Reserve for estimated losses arising from repurchase of loans	$ 3,000

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Derivatives (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Derivative [Line Items]
Fair value of collateral pledged to secure interest rate contracts			$ 2,000
Incremental interest expense paid to interest rate swap counterparties	$ 743	$ 826
2011 Interest Rate Swap
Derivative [Line Items]
Notional amount of interest rate derivatives	$ 93,500
Fixed rate payments, interest rate	5.50%		5.50%
Variable rate payment rate	1.75%		1.75%

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Derivatives (Schedule Of Interest Rate Swaps) (Details) - 2011 Interest Rate Swap - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Derivative [Line Items]
Estimated fair value of liability	$ 729	$ 1,429
Derivative, Notional Amount	$ 93,500	$ 93,500

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Accumulated Other Comprehensive Income (Loss) (Schedule Of Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015	Dec. 31, 2014
Accumulated Other Comprehensive Income (Loss), before Tax		$ (38,596)		$ (104,352)
Deferred tax expense (benefit)		(14,772)		(39,912)
Accumulated other comprehensive income (loss), net of tax		(23,824)	$ (35,411)	(64,440)	$ (52,981)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax		1,838	1,386
Amortization of actuarial losses and prior service cost		1,652	2,886
Unrealized Gains on Investment Securities Available for Sale
Accumulated Other Comprehensive Income (Loss), before Tax		38,900		(24,504)
Deferred tax expense (benefit)		14,866		(9,379)
Accumulated other comprehensive income (loss), net of tax	[1]	24,034	20,551	(15,125)	5,098
Income taxes		(1,770)	(1,977)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	[1]	2,858	3,149
Funded Status of Defined Benefit Plan
Accumulated Other Comprehensive Income (Loss), before Tax		(76,767)		(78,419)
Deferred tax expense (benefit)		(29,364)		(29,996)
Accumulated other comprehensive income (loss), net of tax	[1]	(47,403)	(53,652)	(48,423)	(55,415)
Income taxes		632	1,123
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	[1]	(1,020)	(1,763)
Employee Benefits, prior service costs		(52)	(53)
Amortization of actuarial losses and prior service cost		(1,600)	(2,833)
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, before Tax		(1,652)	(2,886)
Unrealized Loss on Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss), before Tax		(729)		(1,429)
Deferred tax expense (benefit)		(274)		(537)
Accumulated other comprehensive income (loss), net of tax	[1]	(455)	(2,310)	$ (892)	$ (2,664)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	[1]	$ 0	$ 0

[1] All amounts are net of tax.

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Accumulated Other Comprehensive Income (Loss) (Components of AOCI) (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2016	Mar. 31, 2015
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance		$ (64,440)	$ (52,981)
Other comprehensive income before reclassifications		42,454	18,956
Amounts reclassified from accumulated other comprehensive (loss) income		(1,838)	(1,386)
Net current period other comprehensive income		40,616	17,570
Ending balance		(23,824)	(35,411)
Unrealized Loss on Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	[1]	(892)	(2,664)
Other comprehensive income before reclassifications	[1]	437	354
Amounts reclassified from accumulated other comprehensive (loss) income	[1]	0	0
Net current period other comprehensive income	[1]	437	354
Ending balance	[1]	(455)	(2,310)
Unrealized Gains on Investment Securities Available for Sale
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	[1]	(15,125)	5,098
Other comprehensive income before reclassifications	[1]	42,017	18,602
Amounts reclassified from accumulated other comprehensive (loss) income	[1]	(2,858)	(3,149)
Net current period other comprehensive income	[1]	39,159	15,453
Ending balance	[1]	24,034	20,551
Defined Benefit Pension Items
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	[1]	(48,423)	(55,415)
Other comprehensive income before reclassifications	[1]	0	0
Amounts reclassified from accumulated other comprehensive (loss) income	[1]	1,020	1,763
Net current period other comprehensive income	[1]	1,020	1,763
Ending balance	[1]	$ (47,403)	$ (53,652)

[1] All amounts are net of tax.

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Accumulated Other Comprehensive Income (Loss) (Reclassifications out of AOCI) (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2016	Mar. 31, 2015
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Securities gains (losses)		$ 4,628	$ 5,126
Amortization of actuarial losses and prior service cost		1,652	2,886
Amounts reclassified from accumulated other comprehensive income, net of tax		(1,838)	(1,386)
Unrealized Loss on Cash Flow Hedges
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amounts reclassified from accumulated other comprehensive income, net of tax	[1]	0	0
Unrealized Gains on Investment Securities Available for Sale
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Securities gains (losses)		4,628	5,126
Income taxes		(1,770)	(1,977)
Amounts reclassified from accumulated other comprehensive income, net of tax	[1]	(2,858)	(3,149)
Defined Benefit Pension Items
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Employee Benefits, prior service costs		(52)	(53)
Amortization of actuarial losses and prior service cost		(1,600)	(2,833)
Total before taxes		(1,652)	(2,886)
Income taxes		632	1,123
Amounts reclassified from accumulated other comprehensive income, net of tax	[1]	$ 1,020	$ 1,763

[1] All amounts are net of tax.