10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended March 31, 2013

Commission File Number 0-25756

IBERIABANK Corporation

(Exact name of registrant as specified in its charter)

Louisiana	72-1280718
(State or other jurisdiction of incorporation or organization	(I.R.S. Employer Identification Number)

200 West Congress Street
Lafayette, Louisiana	70501
(Address of principal executive office)	(Zip Code)

(337) 521-4003

(Registrant’s telephone number, including area code)

Securities registered pursuant to Section 12(g) of the Act: Not Applicable

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Name of Exchange on which registered
Common Stock (par value $1.00 per share)	The NASDAQ Stock Market, LLC

Indicate by check mark whether the Registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  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 (as defined in Securities Exchange Act Rule 12b-2).

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

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

At April 30, 2013, the Registrant had 29,690,980 shares of common stock, $1.00 par value, which were issued and outstanding.

IBERIABANK CORPORATION AND SUBSIDIARIES

TABLE OF CONTENTS

		Page
Part I.	Financial Information
Item 1.	Financial Statements (unaudited)		1
	Consolidated Balance Sheets as of March 31, 2013 and December 31, 2012		1
	Consolidated Statements of Comprehensive Income for the three months ended March 31, 2013 and 2012		2
	Consolidated Statements of Shareholders’ Equity for the three months ended March 31, 2013 and 2012		3
	Consolidated Statements of Cash Flows for the three months ended March 31, 2013 and 2012		4
	Notes to Unaudited Consolidated Financial Statements		5
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations		48
Item 3.	Quantitative and Qualitative Disclosures About Market Risk		85
Item 4.	Controls and Procedures		85
Part II.	Other Information
Item 1.	Legal Proceedings		86
Item 1A.	Risk Factors		86
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds		86
Item 3.	Defaults Upon Senior Securities		86
Item 4.	Mine Safety Disclosures		86
Item 5.	Other Information		86
Item 6.	Exhibits		86
Signatures			88

IBERIABANK CORPORATION AND SUBSIDIARIES

Consolidated Balance Sheets

(Dollars in thousands, except share data)	(unaudited) March 31, 2013			December 31, 2012
Assets
Cash and due from banks	$	183,158		$	248,214
Interest-bearing deposits in banks		443,358			722,763
Total cash and cash equivalents		626,516			970,977
Securities available for sale, at fair value		1,951,548			1,745,004
Securities held to maturity, fair values of $203,100 and $211,498, respectively		198,442			205,062
Mortgage loans held for sale		188,037			267,475
Loans covered by loss share agreements		1,004,173			1,092,756
Non-covered loans, net of unearned income		7,590,802			7,405,824
Total loans, net of unearned income		8,594,975			8,498,580
Allowance for credit losses		(189,725	)		(251,603	)
Loans, net		8,405,250			8,246,977
FDIC loss share receivables		284,471			423,069
Premises and equipment, net		304,353			303,523
Goodwill		401,872			401,872
Other assets		590,710			565,719
Total Assets	$	12,951,199		$	13,129,678
Liabilities
Deposits:
Noninterest-bearing	$	1,971,809		$	1,967,662
Interest-bearing		8,714,458			8,780,615
Total deposits		10,686,267			10,748,277
Short-term borrowings		294,156			303,045
Long-term debt		323,046			423,377
Other liabilities		123,660			125,111
Total Liabilities		11,427,129			11,599,810
Shareholders’ Equity
Common stock, $1 par value - 50,000,000 shares authorized; 31,917,385 shares issued		31,917			31,917
Additional paid-in capital		1,169,421			1,176,180
Retained earnings		402,094			411,472
Accumulated other comprehensive income		23,292			24,477
Treasury stock at cost - 2,225,604 and 2,427,640 shares, respectively		(102,654	)		(114,178	)
Total Shareholders’ Equity		1,524,070			1,529,868
Total Liabilities and Shareholders’ Equity	$	12,951,199		$	13,129,678

The accompanying Notes are an integral part of these Consolidated Financial Statements.

1

IBERIABANK CORPORATION AND SUBSIDIARIES

Consolidated Statements of Comprehensive Income (unaudited)

	For The Three Months Ended March 31,
(Dollars in thousands, except per share data)	2013			2012
Interest and Dividend Income
Loans, including fees	$	123,067		$	123,934
Mortgage loans held for sale, including fees		1,325			1,049
Investment securities:
Taxable interest		7,105			9,538
Tax-exempt interest		1,756			1,917
Amortization of FDIC loss share receivable		(27,702	)		(27,927	)
Other		865			676
Total interest and dividend income		106,416			109,187
Interest Expense
Deposits:
NOW and MMDA		5,406			6,146
Savings		94			149
Time deposits		4,654			7,666
Short-term borrowings		141			142
Long-term debt		3,250			3,223
Total interest expense		13,545			17,326
Net interest income		92,871			91,861
(Reversal of) provision for credit losses		(3,377	)		2,857
Net interest income after provision for credit losses		96,248			89,004
Noninterest Income
Service charges on deposit accounts		6,797			5,980
Mortgage income		18,931			13,718
Title revenue		5,021			4,533
ATM/debit card fee income		2,183			2,024
Income from bank owned life insurance		939			951
Gain (loss) on sale of assets		47			(25	)
Gain on sale of available for sale investments		2,328			2,800
Derivative losses reclassified from other comprehensive income		(425	)		(386	)
Broker commissions		3,534			3,060
Other income		5,136			4,741
Total noninterest income		44,491			37,396
Noninterest Expense
Salaries and employee benefits		62,529			54,819
Net occupancy and equipment		15,195			12,719
Impairment of FDIC loss share receivables		31,813			—
Franchise and shares tax		1,220			1,020
Communication and delivery		3,271			3,133
Marketing and business development		3,087			3,022
Data processing		3,992			3,176
Printing, stationery and supplies		757			790
Amortization of acquisition intangibles		1,183			1,290
Professional services		4,418			4,100
Net costs of OREO property		972			2,684
Credit and other loan related expense		3,739			4,027
Insurance		2,501			2,609
Travel and entertainment		2,268			2,124
Other expenses		7,953			4,361
Total noninterest expense		144,898			99,873
Income (loss) before income tax expense		(4,159	)		26,527
Income tax expense (benefit)		(4,876	)		7,134
Net Income		717			19,393
Income Available to Common Shareholders - Basic	$	717		$	19,393
Earnings Allocated to Unvested Restricted Stock		—			(364	)
Earnings Available to Common Shareholders - Diluted		717			19,029
Earnings per common share - Basic	$	0.02		$	0.66
Earnings per common share - Diluted		0.02			0.66
Cash dividends declared per common share		0.34			0.34
Other comprehensive income
Unrealized gains on securities:
Unrealized holding gains (losses) arising during the period	$	(1,994	)	$	(1,056	)
Other than temporary impairment realized in net income		—			—
Less: reclassification adjustment for gains included in net income		(2,328	)		(2,800	)
Unrealized (loss) gain on securities, before tax		(4,322	)		(3,856	)
Fair value of derivative instruments designated as cash flow hedges:
Change in fair value of derivative instruments designated as cash flow hedges during the period		2,073			4,951
Less: reclassification adjustment for losses (gains) included in net income		425			386
Fair value of derivative instruments designated as cash flow hedges, before tax		2,498			5,337
Other comprehensive income (loss), before tax		(1,824	)		1,481
Income tax expense (benefit) related to items of other comprehensive income		(639	)		518
Other comprehensive income (loss), net of tax		(1,185	)		963
Comprehensive income (loss)	$	(468	)	$	20,356

The accompanying Notes are an integral part of these Consolidated Financial Statements.

2

IBERIABANK CORPORATION AND SUBSIDIARIES

Consolidated Statements of Shareholders’ Equity (unaudited)

(Dollars in thousands, except share and per share data)	Common Stock				Additional Paid-In Capital			Retained Earnings			Accumulated Other Comprehensive Income			Treasury Stock						Total
	Shares		Amount											Shares			Amount
Balance, December 31, 2011		31,163,070	$	31,163	$	1,135,880		$	375,184		$	24,457			1,789,165		$	(84,023	)		1,482,661
Net income		—		—		—			19,393			—			—			—			19,393
Other comprehensive income		—		—		—			—			963			—			—			963
Cash dividends declared, $0.34 per share		—		—		—			(10,036	)		—			—			—			(10,036	)
Reissuance of treasury stock under incentive plan, net of shares surrendered in payment, including tax benefit		—		—		(489	)		—			—			(141,961	)		888			399
Common stock issued for recognition and retention plan		—		—		(6,145	)		—			—			—			6,145			—
Share-based compensation cost		—		—		2,250			—			—			—			—			2,250
Balance, March 31, 2012		31,163,070	$	31,163	$	1,131,496		$	384,541		$	25,420			1,647,204		$	(76,990	)	$	1,495,630
Balance, December 31, 2012		31,917,385	$	31,917	$	1,176,180		$	411,472		$	24,477			2,427,640		$	(114,178	)	$	1,529,868
Net income		—		—		—			717			—			—			—			717
Other comprehensive loss		—		—		—			—			(1,185	)		—			—			(1,185	)
Cash dividends declared, $0.34 per share		—		—		—			(10,095	)		—			—			—			(10,095	)
Reissuance of treasury stock under incentive plan, net of shares surrendered in payment, including tax benefit		—		—		(1,193	)		—			—			(202,036	)		3,446			2,253
Common stock issued for recognition and retention plan		—		—		(8,078	)		—			—			—			8,078			—
Share-based compensation cost		—		—		2,512			—			—			—			—			2,512
Treasury stock acquired at cost		—		—		—			—			—			—			—			—
Balance, March 31, 2013		31,917,385	$	31,917	$	1,169,421		$	402,094		$	23,292			2,225,604		$	(102,654	)	$	1,524,070

The accompanying Notes are an integral part of these Consolidated Financial Statements.

3

IBERIABANK CORPORATION AND SUBSIDIARIES

Consolidated Statements of Cash Flows (unaudited)

	For The Three Months Ended March 31,
(Dollars in thousands)				(Restated)
	2013			2012
Cash Flows from Operating Activities
Net income	$	717		$	19,393
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization		6,899			4,919
Amortization of purchase accounting adjustments, net		(6,358	)		(10,765	)
(Reversal of) provision for credit losses		(3,377	)		2,857
Noncash compensation expense		2,512			2,250
(Gain) loss on sale of assets		(47	)		25
Gain on sale of available for sale investments		(2,328	)		(2,800	)
Gain on sale of OREO		(1,387	)		(1,313	)
Impairment of FDIC loss share receivables		31,813			—
Amortization of premium/discount on investments		5,600			4,874
Derivative losses (gains) on swaps		1			—
(Benefit) provision for deferred income taxes		123			356
Mortgage loans held for sale
Originations		(536,673	)		(450,644	)
Proceeds from sales		634,540			489,095
Gain on sale of loans, net		(18,429	)		(13,563	)
Cash retained from tax benefit associated with share-based payment arrangements		(330	)		(268	)
(Increase) decrease in other assets		(9,368	)		4,884
Other operating activities, net		4,424			5,627
Net Cash Provided by Operating Activities		108,332			54,927
Cash Flows from Investing Activities
Proceeds from sales of securities available for sale		19,234			81,793
Proceeds from maturities, prepayments and calls of securities available for sale		288,650			355,275
Purchases of securities available for sale		(548,154	)		(448,487	)
Proceeds from maturities, prepayments and calls of securities held to maturity		8,724			5,611
Purchases of securities held to maturity		(2,412	)		(3,222	)
FDIC reimbursement of recoverable covered asset losses		37,903			36,926
Increase in loans receivable, net, excluding loans acquired		(101,684	)		(102,302	)
Proceeds from sale of premises and equipment		105			309
Purchases of premises and equipment		(6,019	)		(10,289	)
Proceeds from disposition of real estate owned		17,719			28,484
Investment in new market tax credit entities		—			—
Cash received in excess of cash paid for acquisition		—			—
Other investing activities, net		11,244			8,224
Net Cash Used in Investing Activities		(274,690	)		(47,678	)
Cash Flows from Financing Activities
(Decrease) increase in deposits, net of deposits acquired		(61,823	)		172,927
Net change in short-term borrowings, net of borrowings acquired		(8,889	)		(129,054	)
Proceeds from long-term debt		—			220
Repayments of long-term debt		(99,617	)		(22,268	)
Dividends paid to shareholders		(10,027	)		(9,988	)
Proceeds from sale of treasury stock for stock options exercised		3,181			1,111
Payments to repurchase common stock		(1,258	)		(980	)
Cash retained from tax benefit associated with share-based payment arrangements		330			268
Net Cash (Used in) Provided by Financing Activities		(178,103	)		12,236
Net (Decrease) Increase In Cash and Cash Equivalents		(344,461	)		19,485
Cash and Cash Equivalents at Beginning of Period		970,977			573,296
Cash and Cash Equivalents at End of Period	$	626,516		$	592,781
Supplemental Schedule of Noncash Activities
Acquisition of real estate in settlement of loans	$	26,633		$	31,338
Transfers of property into Other Real Estate	$	26,633		$	31,338
Supplemental Disclosures
Cash paid for:
Interest on deposits and borrowings	$	13,739		$	18,109
Income taxes, net	$	3,127		$	2,504

The accompanying Notes are an integral part of these Consolidated Financial Statements.

4

IBERIABANK CORPORATION AND SUBSIDIARIES

Notes to Unaudited Consolidated Financial Statements

NOTE 1 – BASIS OF PRESENTATION

The accompanying unaudited consolidated financial statements have been prepared in accordance with generally accepted accounting principles for interim financial information and the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include information or footnotes necessary for a complete presentation of financial position, results of operations and cash flows in conformity with generally accepted accounting principles. These interim financial statements should be read in conjunction with the audited financial statements and note disclosures for IBERIABANK Corporation (“the Company”) previously filed with the Securities and Exchange Commission (the “SEC”) in the Company’s Annual Report on Form 10-K for the year ended December 31, 2012.

PRINCIPLES OF CONSOLIDATION

The consolidated financial statements include the accounts of IBERIABANK Corporation (the “Company”) and its wholly owned subsidiaries, IBERIABANK, Lenders Title Company (“LTC”), IBERIA Capital Partners LLC (“ICP”), IB Aircraft Holdings, LLC, IBERIA Asset Management Inc. (“IAM”), and IBERIA CDE, LLC (“CDE”). All significant intercompany balances and transactions have been eliminated in consolidation. All normal, recurring adjustments which, in the opinion of management are necessary for a fair presentation of the financial statements, have been included. Certain amounts reported in prior periods have been reclassified to conform to the current period presentation.

NATURE OF OPERATIONS

The Company offers commercial and retail banking products and services to customers throughout locations in six states through IBERIABANK. The Company also operates mortgage production offices in twelve states through IBERIABANK Mortgage Company (“IMC”), and offers a full line of title insurance and closing services throughout Arkansas and Louisiana through LTC and its subsidiaries. ICP provides equity research, institutional sales and trading, and corporate finance services. IB Aircraft Holdings, LLC owns a fractional share of an aircraft used by management of the Company and its subsidiaries. IAM provides wealth management and trust services for commercial and private banking clients. CDE is engaged in the purchase of tax credits.

USE OF ESTIMATES

The preparation of financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could differ from those estimates. Material estimates that are susceptible to significant change in the near term are the allowance for credit losses, valuation of and accounting for loans covered by loss sharing arrangements with the FDIC and the related loss share receivables, valuation of and accounting for acquired loans, and valuation of goodwill, intangible assets and other purchase accounting adjustments.

CONCENTRATION OF CREDIT RISKS

Most of the Company’s business activity is with customers located within the States of Louisiana, Florida, Arkansas, Alabama, Texas, and Tennessee. The Company’s lending activity is concentrated in its market areas in those states. The Company has emphasized originations of commercial loans and private banking loans, defined as loans to larger consumer clients. Repayments on loans are expected to come from cash flows of the borrower and/or guarantor. Losses on secured loans are limited by the value of the collateral upon default of the borrowers. The Company does not have any significant concentrations to any one industry or customer.

SEGMENTS

All of the Company’s banking operations are considered by management to be aggregated in one reportable operating segment. Because the overall banking operations comprise substantially all of the consolidated operations and none of the Company’s other subsidiaries, either individually or in the aggregate, meet quantitative materiality thresholds, no separate segment disclosures are presented in these consolidated financial statements. The Company has invested in its financial reporting infrastructure to report financial information associated with performance of lines of business within the banking operating segment. The Company anticipates reporting this information in the second half of 2013.

FDIC LOSS SHARE RECEIVABLE

Because the FDIC reimburses the Company for losses on certain loans acquired in 2009 and 2010, indemnification assets were recorded at fair value as of the acquisition dates. The initial values of the indemnification assets were based on estimated cash flows to be received over the expected life of the acquired assets, not to exceed the term of the indemnification agreements. The loss sharing term of Company’s commercial and single family residential indemnification agreements are five year and ten years, respectively, from the date of acquisition.

Because the indemnification assets are measured on the same basis as the indemnified loans, subject to contractual and collectability limitations, the indemnification assets are impacted by changes in expected cash flows on covered loans. Increases in credit losses expected to occur within the loss share term are recorded as current period increases to the allowance for credit losses and increase the indemnification assets by the applicable loss share percentage. Decreases in credit losses expected to occur within loss share term reduce the amount collectible from the FDIC and increase the amount collectible from customers in the form of prospective accretion. Increases in the portion of indemnification asset collectible from customers are amortized to income. Periodic amortization represents that amount that is expected to result in symmetrical recognition of pool-level accretion and amortization over the shorter of 1) the life of the loan or 2) the life of the shared loss agreement.

The Company assesses the indemnification assets for collectability at the acquisition level based on three sources: 1) the FDIC, 2) OREO transactions, and 3) customers. Amounts collectible from the FDIC through loss reimbursements are comprised of losses currently expected within the loss share term. A current period impairment would be recorded to the extent that events or circumstances indicate that losses previously expected to occur within the loss share term are expected to occur subsequent to loss share termination. Amounts collectible through expected gains on the sale of OREO are written-up or impaired each period based on the best available information. Amounts collectible from customers in the form of accretion are deemed collectible to the extent that net acquisition-level yield, which primarily consists of accretion and indemnification asset amortization, are expected to remain positive over the life of the shared loss agreement. Impairment of amounts collectible from customers would be recorded as a current period charge to income, to the extent required to maintain the zero net yield floor.

Loss assumptions used to measure the basis of the indemnified loans are consistent with the loss assumptions used to measure the indemnification assets.

The indemnification asset is reduced and a corresponding claim receivable is established within other assets when a loss is incurred and is subsequently relieved when cash is received from the FDIC.

FAIR VALUE MEASUREMENTS

The Company estimates fair value based on the assumptions market participants would use when selling an asset or transferring a liability and characterizes such measurements within the fair value hierarchy based on the inputs used to develop those assumptions and measure fair value. The hierarchy requires the Company to maximize the use of observable inputs and minimize the use of unobservable inputs. The three levels of inputs used to measure fair value are as follows:

• Level 1 - Quoted prices in active markets for identical assets or liabilities.

• Level 2 - Observable inputs other than quoted prices included in Level 1, such as quoted prices for similar assets and liabilities in active markets; quoted prices for identical or similar assets and liabilities in markets that are not active; or other inputs that are observable or can be corroborated by observable market data.

• Level 3 - Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. This includes certain pricing models, discounted cash flow methodologies and similar techniques that use significant unobservable inputs.

5

A description of the valuation methodologies used for instruments measured at fair value follows, as well as the classification of such instruments within the valuation hierarchy.

Investment securities

Securities are classified within Level 1 where quoted market prices are available in an active market. Inputs include securities that have quoted prices in active markets for identical assets. If quoted market prices are unavailable, fair value is estimated using quoted prices of securities with similar characteristics, at which point the securities would be classified within Level 2 of the hierarchy. Examples may include certain collateralized mortgage and debt obligations.

Mortgage loans held for sale

As of March 31, 2013, the Company has $188,037,000 of conforming mortgage loans held for sale. Mortgage loans originated and held for sale are carried at the lower of cost or estimated fair value. The Company obtains quotes or bids on these loans directly from purchasing financial institutions. Mortgage loans held for sale that were recorded at estimated fair value would be classified within Level 2 of the hierarchy and are included in the table in Note 15.

Impaired loans

Loans are measured for impairment using the methods permitted by Accounting Standards Codification (“ASC”) Topic 310. Fair value measurements are used in determining impairment using either the loan’s obtainable market price, if available (Level 1) or the fair value of the collateral if the loan is collateral dependent (Level 2). Measuring the impairment of loans using the present value of expected future cash flows, discounted at the loan’s effective interest rate, is not considered a fair value measurement. Fair value of the collateral is determined by appraisals or independent valuation.

Other real estate owned

Fair values of OREO at March 31, 2013 are determined by sales agreement or appraisal, and costs to sell are based on estimation per the terms and conditions of the sales agreement or amounts commonly used in real estate transactions. Inputs include appraisal values on the properties or recent sales activity for similar assets in the property’s market, and thus OREO measured at fair value would be classified within Level 2 of the hierarchy. The Company included property write-downs of $1,154,000 and $2,556,000 in earnings for the three months ended March 31, 2013 and 2012, respectively.

Derivative financial instruments

The Company utilizes interest rate swap agreements to convert a portion of its variable-rate debt to a fixed rate (cash flow hedge). The Company also enters into commitments to originate loans whereby the interest rate on the prospective loan is determined prior to funding (“rate lock commitments”). Rate lock commitments on mortgage loans that are intended to be sold are considered to be derivatives. The Company offers its customers a certificate of deposit that provides the purchaser a guaranteed return of principal at maturity plus potential return, which allows the Company to identify a known cost of funds. The rate of return is based on an equity index, and as such represents an embedded derivative. Fair value of interest rate swaps, interest rate lock commitments, and equity-linked written and purchased options are estimated using prices of financial instruments with similar characteristics, and thus are classified within Level 2 of the fair value hierarchy.

6

NOTE 2 – RECENT ACCOUNTING PRONOUNCEMENTS

ASU No. 2012-06

For the quarter ended March 31, 2013, the Company adopted the provisions of ASU No. 2012-06, Business Combinations (Topic 805): Subsequent Accounting for an Indemnification Asset Recognized at the Acquisition Date as a Result of a Government-Assisted Acquisition of a Financial Institution, which clarifies the applicable guidance for subsequently measuring an indemnification asset recognized in a government-assisted acquisition of a financial institution that includes a loss-sharing agreement. The ASU addresses the diversity in practice regarding interpretation of the terms “on the same basis” and “contractual limitations” referred to by the applicable accounting guidance. Accounting principles require that an indemnification asset recognized at the acquisition date as a result of a government-assisted acquisition of a financial institution involving an indemnification agreement shall be subsequently measured on the same basis as the indemnified item. The provisions of ASU No. 2012-06 clarify that, upon subsequent remeasurement of an indemnification asset, the effect of the change in expected cash flows of the indemnification agreement shall be amortized. Any amortization of changes in value is limited to the lesser of the contractual term of the indemnification agreement or the remaining life of the indemnified assets. The ASU also clarifies that the pool level is the appropriate unit of account for determining the life of the indemnified loans. The ASU is to be applied prospectively and does not affect the guidance relating to the recognition or initial measurement of an indemnification asset.

Application of the ASU’s provisions on a disaggregated basis had the effect of reducing the remaining period over which the indemnification assets will be amortized. As a result of the shortened amortization period, and based on current cash flow expectations and other assumptions, the Company’s indemnification asset amortization increased amortization expense in the three-month period ended March 31, 2013 by $5,453,000, however, the change in amortization period did not have a material impact on its financial position and liquidity. Adoption of the ASU also requires the Company to assess the indemnification assets for collectability on a standalone basis. Prior to adoption, the Company assessed collectability of the indemnification asset and the covered loans on a linked basis. The transition in collectability assessment methodology did not have an impact of the Company’s consolidated financial statements for the quarter ended March 31, 2013. However, future changes in cash flow expectations and/or other assumptions could result in indemnification asset impairment.

ASU No. 2013-02

In 2013, the Company adopted the provisions of ASU No. 2013-06, Comprehensive Income (Topic 220): Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income, which requires the Company to report the effect of significant reclassifications out of accumulated other comprehensive income on the respective line items in net income on the Company’s consolidated statement of comprehensive income if the amount being reclassified is required under US GAAP to be reclassified in its entirety to net income. The ASU does not change the current requirements for reporting net income or other comprehensive income in the consolidated financial statements of the Company, but does require the Company to provide information about the amounts reclassified out of accumulated other comprehensive income by component.

The adoption of the ASU affects the format and presentation of the Company’s consolidated financial statements and the footnotes to the consolidated financial statements, but does not represent a departure from accounting principles previously applied and thus the adoption did not have an effect on the Company’s operating results, financial position, or liquidity. The information required to be presented or disclosed by this ASU is incorporated in the Company’s statements of comprehensive income and Note 12 in these unaudited consolidated financial statements.

ASU No. 2011-11 and ASU No. 2013-01

For the quarter ended March 31, 2013, the Company adopted the provisions of ASU No. 2011-11, Balance Sheet (Topic 210): Disclosures about Offsetting Assets and Liabilities, which requires an entity to disclose gross and net information about certain instruments and transactions eligible for offset in the statement of financial position and instruments and certain transactions subject to an agreement similar to a master netting arrangement. The Company also adopted ASU No. 2013-01, Balance Sheet (Topic 210): Clarifying the Scope of Disclosures about Offsetting Assets and Liabilities, which clarifies the scope of ASU 2011-11. Because the guidance provided by the ASU’s is disclosure related, adoption did not impact the Company’s consolidated financial statements. The adoption resulted in additional disclosures incorporated in Note 11 of these unaudited financial statements.

7

NOTE 3 – EARNINGS PER SHARE

Share-based payment awards that entitle holders to receive non-forfeitable dividends before vesting are considered participating securities and thus included in the calculation of basic earnings per share. These awards are included in the calculation of basic earnings per share under the two-class method. The two-class method allocates earnings for the period between common shareholders and other security holders. The participating awards receiving dividends will be allocated the same amount of income as if they were outstanding shares.

The following table presents the calculation of basic and diluted earnings per share for the three months ended March 31, 2013 and 2012.

	For the Three Months Ended March 31,
(Dollars in thousands, except per share data)	2013			2012
Income available to common shareholders	$	717		$	19,393
Distributed earnings (distributed capital) to unvested restricted stock		(14	)		(374	)
Distributed earnings (distributed capital) to common shareholders - Basic		703			19,019
Undistributed earnings reallocated to unvested restricted stock		(6	)		10
Distributed and undistributed earnings to common shareholders - Diluted	$	697		$	19,029
Weighted average shares outstanding - Basic(1)		29,502,711			29,384,220
Weighted average shares outstanding - Diluted		28,979,168			28,928,276
Earnings per common share - Basic	$	0.02		$	0.66
Earnings per common share - Diluted	$	0.02		$	0.66
Earnings per unvested restricted stock share - Basic	$	0.03		$	0.70
Earnings per unvested restricted stock share - Diluted	$	0.04		$	0.68

(1) Weighted average basic shares outstanding include 564,543 and 535,005 shares of unvested restricted stock for the three months ended March 31, 2013 and 2012, respectively.

8

Additional information on the Company’s basic earnings per common share is shown in the following table.

	For the Three Months Ended March 31,
(Dollars in thousands, except per share data)	2013			2012
Distributed earnings to common shareholders	$	9,896		$	9,842
Undistributed earnings (distributed capital) to common shareholders		(9,193	)		9,177
Total earnings to common shareholders	$	703		$	19,019
Distributed earnings to unvested restricted stock	$	199		$	194
Undistributed earnings (distributed capital) to unvested restricted stock		(185	)		180
Total earnings allocated to restricted stock	$	14		$	374
Distributed earnings per common share	$	0.34		$	0.34
Undistributed earnings (distributed capital) per common share		(0.32	)		0.32
Total earnings per common share - Basic	$	0.02		$	0.66
Distributed earnings per unvested restricted stock share	$	0.35		$	0.36
Undistributed earnings (distributed capital) per unvested restricted stock share		(0.33	)		0.34
Total earnings per unvested restricted stock share - Basic	$	0.02		$	0.70

For the three months ended March 31, 2013 and 2012, the calculations for basic shares outstanding exclude the weighted average shares owned by the Recognition and Retention Plan (“RRP”) of 641,922 and 590,013, respectively, and are adjusted for the weighted average shares in treasury stock of 2,337,295 and 1,723,843, respectively.

The effect from the assumed exercise of 790,431 and 528,719 stock options was not included in the computation of diluted earnings per share for three months ended March 31, 2013 and 2012, respectively, because such amounts would have had an antidilutive effect on earnings per share.

9

NOTE 4 – DISPOSITION ACTIVITY

Branch Dispositions

During the fourth quarter of 2012, the Company announced plans to close four branches during 2013 as part of its ongoing business strategy, which includes a periodic review of its branch network to maximize shareholder return. The Company closed these four branches during the first quarter of 2013. As part of these branch closures, the Company incurred various disposal costs during the three months ended March 31, 2013 and expects to incur additional costs in the second quarter of 2013, including personnel termination costs, contract termination costs, and fixed asset disposals. The following table shows the costs the Company incurred that are included in its statement of comprehensive income for the three months ended March 31, 2013.

(Dollars in thousands, except per share data)	2013
Employee termination	$	55
Accelerated depreciation		375
Total	$	430

The Company estimates future exit costs, which would include additional employee termination costs, fixed asset disposals, and lease termination costs, will not be material.

During the second quarter of 2013, the Company also announced plans to close or consolidate nine additional branches.

Note 17 to these unaudited consolidated financial statements provides additional information on this announcement.

10

NOTE 5 – INVESTMENT SECURITIES

The amortized cost and fair values of investment securities, with gross unrealized gains and losses, consist of the following:

(Dollars in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
March 31, 2013
Securities available for sale:
U.S. Government-sponsored enterprise obligations	$	526,440	$	4,698	$	(298	)	$	530,840
Obligations of state and political subdivisions		117,199		5,826		(179	)		122,846
Mortgage backed securities		1,272,646		25,531		(1,853	)		1,296,324
Other securities		1,460		78		—			1,538
Total securities available for sale	$	1,917,745	$	36,133	$	(2,330	)	$	1,951,548
Securities held to maturity:
U.S. Government-sponsored enterprise obligations	$	69,951	$	1,016	$	—		$	70,967
Obligations of state and political subdivisions		85,723		3,867		(232	)		89,358
Mortgage backed securities		42,768		453		(446	)		42,775
Total securities held to maturity	$	198,442	$	5,336	$	(678	)	$	203,100
December 31, 2012
Securities available for sale:
U.S. Government-sponsored enterprise obligations	$	281,746	$	4,364	$	(386	)	$	285,724
Obligations of state and political subdivisions		120,680		6,573		(178	)		127,075
Mortgage backed securities		1,303,030		29,108		(1,482	)		1,330,656
Other securities		1,460		89		—			1,549
Total securities available for sale	$	1,706,916	$	40,134	$	(2,046	)	$	1,745,004
Securities held to maturity:
U.S. Government-sponsored enterprise obligations	$	69,949	$	1,244	$	—		$	71,193
Obligations of state and political subdivisions		88,909		4,730		(113	)		93,526
Mortgage backed securities		46,204		728		(153	)		46,779
Total securities held to maturity	$	205,062	$	6,702	$	(266	)	$	211,498

11

Securities with carrying values of $1,500,441,000 and $1,712,860,000 were pledged to secure public deposits and other borrowings at March 31, 2013 and December 31, 2012, respectively.

Management evaluates securities for other-than-temporary impairment at least quarterly, and more frequently when economic or market concerns warrant such evaluation. Consideration is given to 1) the length of time and the extent to which the estimated fair value has been less than amortized cost, 2) the financial condition and near-term prospects of the issuer, and 3) the intent and ability of the Company to retain its investment in the issuer for a period of time sufficient to allow for any anticipated recovery in estimated fair value above amortized cost. In analyzing an issuer’s financial condition, management considers whether the securities are issued by the federal government or its agencies and whether downgrades by bond rating agencies have occurred, as well as review of issuer financial statements and industry analysts’ reports.

Information pertaining to securities with gross unrealized losses at March 31, 2013 and December 31, 2012 aggregated by investment category and length of time that individual securities have been in a continuous loss position, follows:

	Less Than Twelve Months					Over Twelve Months					Total
(Dollars in thousands)	Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value
March 31, 2013
Securities available for sale:
U.S. Government-sponsored enterprise obligations	$	(298	)	$	165,763	$	—		$	—	$	(298	)	$	165,763
Obligations of state and political subdivisions		(1	)		336		(178	)		1,094		(179	)		1,430
Mortgage backed securities		(1,851	)		188,106		(2	)		2,679		(1,853	)		190,785
Total securities available for sale	$	(2,150	)	$	354,205	$	(180	)	$	3,773	$	(2,330	)	$	357,978
Securities held to maturity:
U.S. Government-sponsored enterprise obligations	$	—		$	—	$	—		$	—	$	—		$	—
Obligations of state and political subdivisions		(232	)		10,478		—			—		(232	)		10,478
Mortgage backed securities		(446	)		24,372		—			—		(446	)		24,372
Total securities held to maturity	$	(678	)	$	34,850	$	—		$	—	$	(678	)	$	34,850
December 31, 2012
Securities available for sale:
U.S. Government-sponsored enterprise obligations	$	(386	)	$	59,741	$	—		$	—	$	(386	)	$	59,741
Obligations of state and political subdivisions		—			—		(178	)		1,094		(178	)		1,094
Mortgage backed securities		(1,473	)		180,027		(9	)		3,919		(1,482	)		183,946
Total securities available for sale	$	(1,859	)	$	239,768	$	(187	)	$	5,013	$	(2,046	)	$	244,781
Securities held to maturity:
U.S. Government-sponsored enterprise obligations	$	—		$	—	$	—		$	—	$	—		$	—
Obligations of state and political subdivisions		(113	)		8,242		—			—		(113	)		8,242
Mortgage backed securities		(153	)		16,262		—			—		(153	)		16,262
Total securities held to maturity	$	(266	)	$	24,504	$	—		$	—	$	(266	)	$	24,504

12

The Company assessed the nature of the losses in its portfolio as of March 31, 2013 and December, 31, 2012 to determine if there are losses that are deemed other-than-temporary. In its analysis of these securities, management considered numerous factors to determine whether there were instances where the amortized cost basis of the debt securities would not be fully recoverable, including, but not limited to:

• the length of time and extent to which the estimated fair value of the securities was less than their amortized cost,

• whether adverse conditions were present in the operations, geographic area, or industry of the issuer,

• the payment structure of the security, including scheduled interest and principal payments, including the issuer’s failures to make scheduled payments, if any, and the likelihood of failure to make scheduled payments in the future,

• changes to the rating of the security by a rating agency, and

• subsequent recoveries or additional declines in fair value after the balance sheet date.

Management believes it has considered these factors, as well as all relevant information available, when determining the expected future cash flows of the securities in question. Except for the bond discussed below, in each instance, management has determined the cost basis of the securities would be fully recoverable. Management also has the intent and ability to hold debt securities until their maturity or anticipated recovery if the security is classified as available for sale. In addition, management does not believe the Company will be required to sell debt securities before the anticipated recovery of the amortized cost basis of the security.

At March 31, 2013, 54 debt securities had unrealized losses of 0.78% of the securities’ amortized cost basis and 0.15% of the Company’s total amortized cost basis. The unrealized losses for each of the 54 securities relate to market interest rate changes. Two of the 54 securities have been in a continuous loss position for over twelve months at March 31, 2013. These two securities had an aggregate amortized cost basis and unrealized loss of $3,953,000 and $180,000, respectively. One of the two securities was issued by the Federal National Mortgage Association (Fannie Mae). Fannie Mae securities are rated AA+ by S&P and Aaa by Moodys. One of the securities in a continuous unrealized loss position for over twelve months was issued by a political subdivision and discussed in further detail below.

At December 31, 2012, 49 debt securities had unrealized losses of 0.85% of the securities’ amortized cost basis and 0.12% of the Company’s total amortized cost basis. The unrealized losses for each of the 49 securities relate to market interest rate changes. Three of the 49 securities had been in a continuous loss position for over twelve months at December 31, 2012. These three securities had an aggregate amortized cost basis and unrealized loss of $5,200,000 and $187,000, respectively. Two of the three securities were issued by either the Federal National Mortgage Association (Fannie Mae), Federal Home Loan Mortgage Corporation (Freddie Mac), or the Government National Mortgage Association (Ginnie Mae). The Fannie Mae, Freddie Mac, and Ginnie Mae securities are rated AA+ by S&P and Aaa by Moodys. One of the securities in a continuous unrealized loss position for over twelve months was issued by a political subdivision and is discussed in further detail below.

Prior to 2012, management assessed the operating environment of a bond issuer as adverse and concluded that the Company had one unrated revenue municipal bond that warranted an other-than-temporary impairment charge. The specific impairment was related to the loss of the contracted revenue source required for bond repayment. The Company determined the impairment charge using observable market data for similar assets, including third party valuation of the security, as well as information from unobservable inputs, including its best estimate of the recoverability of the amortized cost of the security as outlined above. Changes to the unobservable inputs used by the Company would have resulted in a higher or lower impairment charge, but the unobservable inputs were not highly sensitive and would not result in a material difference in the impairment charge recorded for the year ended December 31, 2011. The Company recorded total impairment of 50% of the par value of the bond and provided a fair value of the bonds that was consistent with current market pricing. During the first three months of 2013, the Company continued to analyze the operating environment of the bond as it did in 2012 and 2011 and noted no further deterioration in the operating environment of the bond issuer.

During the three months ended March 31, 2013 and the year ended December 31, 2012, there was no activity related to credit losses on the other-than-temporarily impaired investment security where a portion of the unrealized loss was recognized in other comprehensive income.

13

As a result of the Company’s analysis, no other declines in the estimated fair value of the Company’s investment securities were deemed to be other-than-temporary at March 31, 2013 or December 31, 2012 except where noted above.

The amortized cost and estimated fair value by maturity of investment securities at March 31, 2013 are shown in the following table. Securities are classified according to their contractual maturities without consideration of principal amortization, potential prepayments or call options. Accordingly, actual maturities may differ from contractual maturities.

	Securities Available for Sale							Securities Held to Maturity
(Dollars in thousands)	Weighted Average Yield			Amortized Cost		Estimated Fair Value		Weighted Average Yield			Amortized Cost		Estimated Fair Value
Within one year or less		0.12	%	$	78,131	$	78,219		1.77	%	$	21,425	$	21,507
One through five years		1.34			231,579		234,222		2.00			56,171		57,395
After five through ten years		1.90			593,060		606,763		2.53			23,073		24,182
Over ten years		1.75			1,014,975		1,032,344		2.91			97,773		100,016
Totals		1.68	%	$	1,917,745	$	1,951,548		2.48	%	$	198,442	$	203,100

The following is a summary of realized gains and losses from the sale of securities classified as available for sale.

	Three Months Ended March 31,
(Dollars in thousands)	2013			2012
Realized gains	$	2,365		$	2,815
Realized losses		(37	)		(15	)
Net realized gains	$	2,328		$	2,800

In addition to the gains above, the Company realized certain immaterial gains on the calls of held to maturity securities.

Other Equity Securities

At March 31, 2013 and December 31, 2012, the Company included the following securities in “Other assets” on the Company’s consolidated balance sheets:

(Dollars in thousands)	March 31, 2013		December 31, 2012
Federal Home Loan Bank (FHLB) stock	$	10,404	$	16,860
Federal Reserve Bank (FRB) stock		28,155		28,155
First National Bankers Bankshares, Inc. (FNBB) stock		899		899
Other investments		406		302
Total equity securities	$	39,864	$	46,216

14

NOTE 6 – LOANS RECEIVABLE

Loans receivable at March 31, 2013 and December 31, 2012 consist of the following:

(Dollars in thousands)	March 31, 2013		December 31, 2012
Residential mortgage loans:
Residential 1-4 family	$	473,503	$	471,183
Construction/ Owner Occupied		5,114		6,021
Total residential mortgage loans		478,617		477,204
Commercial loans:
Real estate		3,587,692		3,631,543
Business		2,621,644		2,537,718
Total commercial loans		6,209,336		6,169,261
Consumer and other loans:
Indirect automobile		342,117		327,985
Home equity		1,261,171		1,251,125
Other		303,734		273,005
Total consumer and other loans		1,907,022		1,852,115
Total loans receivable	$	8,594,975	$	8,498,580

In 2009, the Company acquired substantially all of the assets and liabilities of CapitalSouth Bank (“CSB”), and certain assets and assumed certain deposit and other liabilities of Orion Bank (“Orion”) and Century Bank (“Century”). In 2010, the Company acquired certain assets and assumed certain deposit and other liabilities of Sterling Bank. The loans and foreclosed real estate that were acquired in these transactions are covered by loss share agreements between the FDIC and IBERIABANK, which afford IBERIABANK significant loss protection. Under the loss share agreements, the FDIC will cover 80% of covered loan and foreclosed real estate losses up to certain thresholds for all four acquisitions, 80% of losses that exceed contractual thresholds for Sterling Bank, and 95% of losses that exceed contractual thresholds for CSB, Orion, and Century only.

Because of the loss protection provided by the FDIC, the risks of the CSB, Orion, Century, and Sterling loans and foreclosed real estate are significantly different from those assets not covered under the loss share agreement. Accordingly, the Company presents loans subject to the loss share agreements as “covered loans” in the information below and loans that are not subject to the loss share agreement as “non-covered loans.”

Deferred loan origination fees were $14,082,000 and $14,040,000 and deferred loan expenses were $5,626,000 and $5,270,000 at March 31, 2013 and December 31, 2012, respectively. In addition to loans issued in the normal course of business, the Company considers overdrafts on customer deposit accounts to be loans and reclassifies these overdrafts as loans in its consolidated balance sheets. At March 31, 2013 and December 31, 2012, overdrafts of $2,411,000 and $3,231,000, respectively, have been reclassified to loans receivable.

Loans with carrying values of $2,262,625,000 and $1,504,512,000 were pledged to secure public deposits and other borrowings at March 31, 2013 and December 31, 2012, respectively.

15

Non-covered Loans

The following is a summary of the major categories of non-covered loans outstanding as of March 31, 2013 and December 31, 2012:

(Dollars in thousands)	March 31, 2013		December 31, 2012
Non-covered Loans:
Residential mortgage loans:
Residential 1-4 family	$	296,175	$	284,019
Construction/ Owner Occupied		5,114		6,021
Total residential mortgage loans		301,289		290,040
Commercial loans:
Real estate		3,020,071		2,990,700
Business		2,534,612		2,450,667
Total commercial loans		5,554,683		5,441,367
Consumer and other loans:
Indirect automobile		342,117		327,985
Home equity		1,092,693		1,076,913
Other		300,020		269,519
Total consumer and other loans		1,734,830		1,674,417
Total non-covered loans receivable	$	7,590,802	$	7,405,824

The following tables provide an analysis of the aging of non-covered loans as of March 31, 2013 and December 31, 2012. Because of the difference in the accounting for acquired loans, the tables below further segregate the Company’s non-covered loans receivable between loans acquired from Florida Gulf in 2012, as well as those acquired in 2011, and loans originated by the Company. For purposes of the following tables, subprime mortgage loans are defined as the Company’s mortgage loans that have FICO scores that are less than 620 at the time of origination or were purchased outside of a business combination.

16

	Non-covered loans excluding acquired loans
(Dollars in thousands)
	Past Due(1)
March 31, 2013	30-59 days		60-89 days		Greater than 90 days		Total past due		Current		Total non- covered loans, net of unearned income		Recorded investment > 90 days and accruing
Residential
Prime	$	876	$	1,570	$	9,425	$	11,871	$	176,807	$	188,678	$	1,266
Subprime		—		7		—		7		88,799		88,806		—
Commercial
Real Estate - Construction		224		—		5,939		6,163		322,703		328,866		—
Real Estate - Other		1,141		266		22,514		23,921		2,247,219		2,271,140		519
Commercial Business		550		386		1,937		2,873		2,464,508		2,467,381		7
Consumer and Other
Indirect Automobile		1,068		186		982		2,236		335,953		338,189		—
Home Equity		882		705		6,966		8,553		1,016,663		1,025,216		158
Credit Card		158		93		403		654		50,169		50,823		—
Other		261		135		349		745		231,139		231,884		—
Total	$	5,160	$	3,348	$	48,515	$	57,023	$	6,933,960	$	6,990,983	$	1,950

	Non-covered loans excluding acquired loans
(Dollars in thousands)
	Past Due(1)
December 31, 2012	30-59 days		60-89 days		Greater than 90 days		Total past due		Current		Total non- covered loans, net of unearned income		Recorded investment > 90 days and accruing
Residential
Prime	$	662	$	1,156	$	9,168	$	10,986	$	185,843	$	196,829	$	801
Subprime		—		—		—		—		60,454		60,454		—
Commercial
Real Estate - Construction		60		—		5,479		5,539		288,137		293,676		—
Real Estate - Other		3,590		—		23,559		27,149		2,224,495		2,251,644		83
Commercial Business		1,430		13		3,687		5,130		2,362,304		2,367,434		329
Consumer and Other
Indirect Automobile		1,624		326		868		2,818		320,148		322,966		—
Home Equity		2,283		796		5,793		8,872		991,766		1,000,638		158
Credit Card		130		51		424		605		51,117		51,722		—
Other		566		105		310		981		201,161		202,142		—
Total	$	10,345	$	2,447	$	49,288	$	62,080	$	6,685,425	$	6,747,505	$	1,371

(1) Past due loans include loans on nonaccrual status as of the period indicated. Nonaccrual loans are presented separately in the “Nonaccrual Loans” section below.

17

(Dollars in thousands)	Non-covered acquired loans
	Past Due(1)
March 31, 2013	30-59 days		60-89 days		Greater than 90 days		Total past due		Current		Discount			Total non- covered loans, net of unearned income		Recorded investment > 90 days and accruing(1)
Residential
Prime	$	—	$	—	$	779	$	779	$	24,228	$	(1,202	)	$	23,805	$	779
Subprime		—		—		—		—		—		—			—		—
Commercial
Real Estate - Construction		570		447		3,920		4,937		27,091		(4,154	)		27,874		3,920
Real Estate - Other		5,301		2,145		37,389		44,835		405,796		(58,440	)		392,191		37,389
Commercial Business		845		112		2,684		3,641		70,777		(7,187	)		67,231		2,684
Consumer and Other
Indirect Automobile		67		22		123		212		3,716		—			3,928		123
Home Equity		916		269		5,510		6,695		68,305		(7,523	)		67,477		5,510
Credit Card		—		—		—		—		—		—			—		—
Other		194		524		520		1,238		17,631		(1,556	)		17,313		520
Total	$	7,893	$	3,519	$	50,925	$	62,337	$	617,544	$	(80,062	)	$	599,819	$	50,925

18

(Dollars in thousands)	Non-covered acquired loans
	Past Due(1)
December 31, 2012	30-59 days		60-89 days		Greater than 90 days		Total past due		Current		Discount			Total non- covered loans, net of unearned income		Recorded investment > 90 days and accruing(1)
Residential
Prime	$	—	$	—	$	779	$	779	$	30,663	$	1,315		$	32,757	$	779
Subprime		—		—		—		—		—		—			—		—
Commercial
Real Estate - Construction		369		—		4,067		4,436		29,098		(3,968	)		29,566		4,067
Real Estate - Other		5,971		1,572		38,987		46,530		426,339		(57,055	)		415,814		38,987
Commercial Business		1,410		524		3,953		5,887		89,490		(12,144	)		83,233		3,953
Consumer and Other
Indirect Automobile		171		4		146		321		4,698		—			5,019		146
Home Equity		2,379		382		4,354		7,115		73,658		(4,498	)		76,275		4,354
Credit Card		—		—		—		—		—		—			—		—
Other		202		17		495		714		21,746		(6,805	)		15,655		495
Total	$	10,502	$	2,499	$	52,781	$	65,782	$	675,692	$	(83,155	)	$	658,319	$	52,781

⁽¹⁾ Past due information includes loans acquired from OMNI, Cameron, and Florida Gulf at the gross loan balance, prior to application of discounts, at March 31, 2013 and December 31, 2012.

Nonaccrual Loans

The following table provides the recorded investment of non-covered loans on nonaccrual status at March 31, 2013 and December 31, 2012. Nonaccrual loans in the table exclude loans acquired.

(Dollars in thousands)
	March 31, 2013		December 31, 2012
Residential
Prime	$	8,159	$	8,367
Subprime		—		—
Commercial
Real Estate - Construction		5,939		5,479
Real Estate - Other		21,995		23,475
Business		1,930		3,358
Consumer and Other
Indirect Automobile		982		868
Home Equity		6,808		5,635
Credit Card		403		424
Other		349		310
Total	$	46,565	$	47,916

19

Covered Loans

The carrying amount of the acquired covered loans at March 31, 2013 and December 31, 2012 consisted of loans determined to be impaired at the time of acquisition, which are accounted for in accordance with ASC Topic 310-30, and loans that were considered to be performing at the acquisition date, accounted for by analogy to ASC Topic 310-30, as detailed in the following tables.

(Dollars in thousands)	March 31, 2013
Covered loans	Acquired Impaired Loans		Acquired Performing Loans		Total Covered Loans
Residential mortgage loans:
Residential 1-4 family	$	18,388	$	158,940	$	177,328
Total residential mortgage loans		18,388		158,940		177,328
Commercial loans:
Real estate		146,932		420,689		567,621
Business		2,832		84,200		87,032
Total commercial loans		149,764		504,889		654,653
Consumer and other loans:
Home equity		21,917		146,561		168,478
Other		768		2,946		3,714
Total consumer and other loans		22,685		149,507		172,192
Total covered loans receivable	$	190,837	$	813,336	$	1,004,173

(Dollars in thousands)	December 31, 2012
Covered loans	Acquired Impaired Loans		Acquired Performing Loans		Total Covered Loans
Residential mortgage loans:
Residential 1-4 family	$	20,232	$	166,932	$	187,164
Total residential mortgage loans		20,232		166,932		187,164
Commercial loans:
Real estate		167,742		473,101		640,843
Business		2,757		84,294		87,051
Total commercial loans		170,499		557,395		727,894
Consumer and other loans:
Home equity		22,094		152,117		174,211
Other		820		2,667		3,487
Total consumer and other loans		22,914		154,784		177,698
Total covered loans receivable	$	213,645	$	879,111	$	1,092,756

20

FDIC loss share receivables

The following is a summary of the year-to-date activity in the FDIC loss share receivable for the periods indicated.

(Dollars in thousands)	Three Months Ended March 31,
	2013			2012
Balance, beginning of period	$	423,069		$	591,844
Change due to (reversal of) credit loss provision recorded on FDIC covered loans		(45,414	)		684
Amortization		(27,702	)		(27,927	)
Submission of reimbursable losses to the FDIC		(30,491	)		(28,418	)
Impairment		(31,813	)		—
Changes due to a change in cash flow assumptions on OREO		(3,178	)		1,265
Balance, end of period	$	284,471		$	537,448

Impairment of FDIC loss share receivables

Based on improving economic trends, their impact on the amount and timing of expected future cash flows, and delays in the foreclosure process, the Company concluded that certain previously expected losses are probable of not being collected from the FDIC because such projected losses are no longer anticipated to occur or will occur beyond the reimbursable periods of the loss share agreements. The reimbursable loss period of the CapitalSouth loss share agreements ends in the third quarter of 2014 for non-single family residential loans (with the recovery period ending in the third quarter of 2017) and the third quarter of 2019 for single family residential loans. The reimbursable loss periods for the loans acquired from Century and Orion end during the fourth quarter of 2014 for non-single family residential loans (with the recovery period ending in the fourth quarter of 2017) and during the fourth quarter of 2019 for single family residential loans. For the loans acquired from Sterling, the reimbursable loss period of the loss share agreements ends during the third quarter of 2015 for non-single family residential loans (with the recovery period ending in the third quarter of 2018) and during the third quarter of 2020 for single family residential loans.

On April 10, 2013, the Audit Committee and the Board of Directors concluded that an impairment charge was required under generally accepted accounting principles applicable to the Company and should be recognized in the Company’s unaudited consolidated financial statements for the three-month period ended March 31, 2013. Therefore, the Company recognized a valuation allowance against the indemnification assets in the amount of $31,813,000 through a charge to net income.

Generally accepted accounting principles require that the tax effects of unusual or infrequent items, such as impairment of the indemnification assets, be recognized in the interim period in which they occur. Recognition of the tax effect of the indemnification asset impairment contributed to the $4,876,000 tax benefit presented in the unaudited consolidated statement of comprehensive income for the three months ended March 31, 2013 and resulted in an effective tax rate for that period that is not customary of the Company’s effective tax rate without recognition of this infrequent item.

The Company does not anticipate owing any consideration previously received under indemnification agreements to the FDIC under the “clawback” provisions of these agreements. Of the three agreements with the FDIC that contain clawback provisions, cumulative losses to date under two of these agreements have exceeded the calculated loss amounts which would result in clawback if not incurred. The sum of the historical and remaining projected losses under the remaining agreement is in excess of the clawback amount stated in that agreement. However, the future performance of the remaining covered assets (namely improvements in the forms of recoveries and/or reduced losses) for each of the three agreements beyond each agreement’s respective collection period could require the Company to be subject to the clawback provisions for that agreement. The clawback provisions generally stipulate that in the event of not meeting certain thresholds of loss, the Company is required to pay the FDIC a percentage as defined in the respective agreements.

ASC 310-30 loans

The Company acquired loans (both covered and non-covered) through previous acquisitions which are subject to ASC Topic 310-30.

The following is a summary of changes in the accretable yields of acquired loans during the three months ended March 31, 2013 and 2012.

(Dollars in thousands)
March 31, 2013	Acquired Impaired Loans			Acquired Performing Loans			Total Acquired Loan Portfolio
Balance, beginning of period	$	76,623		$	279,770		$	356,393
Transfers from nonaccretable difference to accretable yield		2,042			16,480			18,522
Accretion		(6,499	)		(45,281	)		(51,780	)
Changes in expected cash flows not affecting nonaccretable differences(1)		8,973			64,500			73,473
Balance, end of period	$	81,139		$	315,469		$	396,608

(Dollars in thousands)
March 31, 2012	Acquired Impaired Loans			Acquired Performing Loans			Total Acquired Loan Portfolio
Balance, beginning of period	$	83,834		$	386,977		$	470,811
Transfers from nonaccretable difference to accretable yield		943			3,437			4,380
Changes in expected cash flows not affecting nonaccretable difference(1)		(3,014	)		23,769			20,755
Accretion		(6,275	)		(55,697	)		(61,972	)
Balance, end of period	$	75,488		$	358,486		$	433,974

(1) Includes changes in cash flows expected to be collected due to the impact of changes in actual or expected timing of liquidation events, loan modifications, changes in interest rates and changes in prepayment assumptions.

Accretable yield during the first quarter of 2013 increased primarily as a result of changes in expected cash flows not impacting the nonaccretable difference. Accretable yield during the first quarter of 2013 and 2012 decreased primarily as a result of the accretion recognized.

21

Troubled Debt Restructurings

Information about the Company’s TDRs at March 31, 2013 and 2012 is presented in the following tables. The Company excludes as TDRs modifications of loans that are accounted for within a pool under Subtopic 310-30, which include the covered loans above, as well as the loans acquired in the OMNI and Cameron acquisitions completed during 2011 and those acquired from Florida Gulf in 2012. Accordingly, such modifications do not result in the removal of those loans from the pool, even if the modification of those loans would otherwise be considered a TDR. As a result, all covered loans and loans acquired from OMNI, Cameron, and Florida Gulf that would otherwise meet the criteria for classification as a troubled debt restructuring are excluded from the tables below.

	Total TDRs
(Dollars in thousands)	Accruing Loans
	Current		Past Due Greater than 30 Days		Nonaccrual TDRs		Total TDRs
March 31, 2013
Residential
Prime	$	—	$	—	$	—	$	—
Commercial
Real Estate		843		207		15,677		16,727
Business		1,188		—		281		1,469
Consumer and Other
Indirect Automobile		—		—		—		—
Home Equity		92		—		220		312
Credit Card		—		—		—		—
Other		—		—		—		—
Total	$	2,123	$	207	$	16,178	$	18,508
March 31, 2012
Residential
Prime	$	—	$	—	$	—	$	—
Commercial
Real Estate		650		—		24,477		25,127
Business		26		—		1,957		1,983
Consumer and Other
Indirect Automobile		—		—		—		—
Home Equity		—		—		229		229
Credit Card		—		—		—		—
Other		—		—		—		—
Total	$	676	$	—	$	26,663	$	27,339

22

Of the $18,508,000 in total TDRs, $1,545,000 occurred during the current three-month period through modification of the original loan terms. Total TDRs of $27,339,000 at March 31, 2012 included $4,061,000 of TDRs that occurred during the three-month period ended March 31, 2012. The following table provides information on how the TDRs were modified during the three months ended March 31, 2013 and 2012.

(Dollars in thousands)	2013		2012
Extended maturities	$	—	$	441
Interest rate adjustment		—		489
Maturity and interest rate adjustment		1,545		2,509
Movement to or extension of interest-rate only payments		—		622
Forbearance		—		—
Covenant modifications		—		—
Other concession(s)(1)		—		—
Total	$	1,545	$	4,061

(1) Other concessions include concessions or a combination of concessions that do not consist of maturity extensions, interest rate adjustments, forbearance, and covenant modifications.

23

Information about the Company’s non-covered TDRs occurring in these periods, as well as non-covered TDRs that subsequently defaulted during the previous twelve months, is presented in the following tables. The Company has defined a default as any loan with a loan payment that is currently past due greater than 30 days, or was past due greater than 30 days at any point during the previous twelve months, or since the date of modification, whichever is shorter.

	March 31, 2013						March 31, 2012
(In thousands, except number of loans)	Number of Loans		Pre- modification Outstanding Recorded Investment		Post- modification Outstanding Recorded Investment(1)		Number of Loans		Pre- modification Outstanding Recorded Investment		Post- modification Outstanding Recorded Investment(1)
TDRs occurring during the three-month period
Residential
Prime		—	$	—	$	—		—	$	—	$	—
Commercial
Real Estate		1		1,545		1,545		11		4,036		3,773
Business		—		—		—		1		27		—
Consumer and Other
Indirect Automobile		—		—		—		—		—		—
Home Equity		—		—		—		—		—		—
Credit Card		—		—		—		—		—		—
Other		—		—		—		1		—		—
Total		1	$	1,545	$	1,545		13	$	4,063	$	3,773

	March 31, 2013				March 31, 2012
Total TDRs that subsequently defaulted in the past 12 months	Number of Loans		Recorded Investment		Number of Loans		Recorded Investment
Residential
Prime		—	$	—		—	$	—
Commercial
Real Estate		48		15,147		40		24,053
Business		8		1,469		6		1,866
Consumer and Other
Indirect Automobile		—		—		—		—
Home Equity		1		51		—		—
Credit Card		—		—		—		—
Other		1		—		1		—
Total		58	$	16,667		47	$	25,919

(1) Recorded investment includes any allowance for credit losses recorded on the TDRs at the dates indicated.

24

NOTE 7 – ALLOWANCE FOR CREDIT LOSSES AND CREDIT QUALITY

A summary of changes in the allowance for credit losses for the covered loan and non-covered loan portfolios for the three months ended March 31, 2013 and 2012 follows.

(Dollars in thousands)	March 31, 2013
	Non-covered loans
	Excluding Acquired Loans			Acquired Loans			Covered loans			Total
Balance, beginning of period	$	74,211		$	8,816		$	168,576		$	251,603
(Reversal of) Provision for credit losses before benefit attributable to FDIC loss share agreements		(4,002	)		596			(45,385	)		(48,791	)
Adjustment attributable to FDIC loss share agreements		—			—			45,414			45,414
Net (reversal of) provision for credit losses		(4,002	)		596			29			(3,377	)
Decrease in FDIC loss share receivable		—			—			(45,414	)		(45,414	)
Transfer of balance to OREO		—			(559	)		(11,318	)		(11,877	)
Loans charged-off		(2,062	)		—			(41	)		(2,103	)
Recoveries		893			—			—			893
Balance, end of period	$	69,040		$	8,853		$	111,832		$	189,725

(Dollars in thousands)	March 31, 2012
	Non-covered loans
	Excluding Acquired Loans			Acquired Loans			Covered loans			Total
Balance, beginning of period	$	74,861		$	—		$	118,900		$	193,761
Provision for credit losses before benefit attributable to FDIC loss share agreements		1,004			1,106			1,431			3,541
Adjustment attributable to FDIC loss share agreements		—			—			(684	)		(684	)
Net provision for credit losses		1,004			1,106			747			2,857
Increase in FDIC loss share receivable		—			—			684			684
Transfer of balance to OREO		—			(6	)		(5,357	)		(5,363	)
Loans charged-off		(2,111	)		(160	)		(13,266	)		(15,537	)
Recoveries		772			1			17			790
Balance, end of period	$	74,526		$	941		$	101,725		$	177,192

25

A summary of changes in the allowance for credit losses for non-covered loans, by loan portfolio type, for the three months ended March 31, 2013 and 2012 is as follows:

(Dollars in thousands)	Commercial Real Estate			Commercial Business			Consumer			Mortgage			Unallocated		Total
March 31, 2013
Allowance for credit losses
Balance, beginning of period	$	38,264		$	28,721		$	13,917		$	2,125		$	—	$	83,027
(Reversal of) Provision for loan losses		(1,804	)		(646	)		(1,374	)		418			—		(3,406	)
Transfer of balance to OREO		(285	)		—			(7	)		(267	)		—		(559	)
Loans charged off		(413	)		(225	)		(1,183	)		(241	)		—		(2,062	)
Recoveries		56			188			618			31			—		893
Balance, end of period	$	35,818		$	28,038		$	11,971		$	2,066		$	—	$	77,893
Allowance on loans individually evaluated for impairment	$	35		$	116		$	41		$	137		$	—	$	329
Allowance on loans collectively evaluated for impairment		35,783			27,922			11,930			1,929			—		77,564
Loans, net of unearned income
Balance, end of period	$	3,020,071		$	2,534,612		$	1,734,830		$	301,289		$	—	$	7,590,802
Balance, end of period: Loans individually evaluated for impairment		27,271			2,958			312			1,058			—		31,599
Balance, end of period: Loans collectively evaluated for impairment		2,992,800			2,531,654			1,734,518			300,231			—		7,559,203
Balance, end of period: Loans acquired with deteriorated credit quality		50,503			3,339			4,276			383			—		58,501

26

(Dollars in thousands)	Commercial Real Estate			Commercial Business			Consumer			Mortgage			Unallocated		Total
March 31, 2012
Allowance for credit losses
Balance, beginning of period	$	35,604		$	25,705		$	12,655		$	897		$	—	$	74,861
(Reversal of) Provision for credit losses		(860	)		2,065			1,024			(119	)		—		2,110
Transfer of balance to OREO		(6	)		—			—			—			—		(6	)
Loans charged off		(803	)		(31	)		(1,274	)		(163	)		—		(2,271	)
Recoveries		128			31			604			10			—		773
Balance, end of period	$	34,063		$	27,770		$	13,009		$	625		$	—	$	75,467
Allowance on loans individually evaluated for impairment	$	1,590		$	202		$	—		$	168		$	—	$	1,960
Allowance on loans collectively evaluated for impairment		32,473			27,568			13,009			457			—		73,507
Loans, net of unearned income
Balance, end of period	$	2,580,727		$	2,020,510		$	1,353,404		$	263,003		$	—	$	6,217,644
Balance, end of period: Loans individually evaluated for impairment		33,952			6,486			228			1,186			—		41,852
Balance, end of period: Loans collectively evaluated for impairment		2,546,775			2,014,024			1,353,176			261,817			—		6,175,792
Balance, end of period: Loans acquired with deteriorated credit quality		15,292			24,193			5,640			—			—		45,125

27

A summary of changes in the allowance for credit losses for covered loans, by loan portfolio type, for the three months ended March 31, 2013 and 2012 is as follows:

(Dollars in thousands)	Commercial Real Estate			Commercial Business			Consumer			Mortgage			Unallocated		Total
March 31, 2013
Allowance for credit losses
Balance, beginning of period	$	100,871		$	11,375		$	33,764		$	22,566		$	—	$	168,576
(Reversal of) Provision for credit losses		29			—			—			—			—		29
Decrease in FDIC loss share receivable		(23,001	)		(1,601	)		(15,905	)		(4,907	)		—		(45,414	)
Transfer of balance to OREO		(9,729	)		—			—			(1,589	)		—		(11,318	)
Loans charged off		(41	)		—			—			—			—		(41	)
Recoveries		—			—			—			—			—		—
Balance, end of period	$	68,129		$	9,774		$	17,859		$	16,070		$	—	$	111,832
Allowance on loans individually evaluated for impairment	$	—		$	—		$	—		$	—		$	—	$	—
Allowance on loans collectively evaluated for impairment		68,129			9,774			17,859			16,070			—		111,832
Loans, net of unearned income
Balance, end of period	$	567,621		$	87,032		$	172,192		$	177,328		$	—	$	1,004,173
Balance, end of period: Loans individually evaluated for impairment		—			—			—			—			—		—
Balance, end of period: Loans collectively evaluated for impairment		567,621			87,032			172,192			177,328			—		1,004,173
Balance, end of period: Loans acquired with deteriorated credit quality		146,932			2,832			22,685			18,388			—		190,837

28

(Dollars in thousands)	Commercial Real Estate			Commercial Business			Consumer			Mortgage			Unallocated		Total
March 31, 2012
Allowance for credit losses
Balance, beginning of period	$	69,175		$	9,788		$	18,753		$	21,184		$	—	$	118,900
(Reversal of) Provision for credit losses		1,386			794			578			(2,011	)		—		747
Increase (decrease) in FDIC loss share receivable		1,268			728			529			(1,841	)		—		684
Transfer of balance to OREO		(3,179	)		(4	)		(797	)		(1,377	)		—		(5,357	)
Loans charged off		(13,126	)		—			(9	)		(131	)		—		(13,266	)
Recoveries		14			—			3			—			—		17
Balance, end of period	$	55,538		$	11,306		$	19,057		$	15,824		$	—	$	101,725
Allowance on loans individually evaluated for impairment	$	—		$	—		$	—		$	—		$	—	$	—
Allowance on loans collectively evaluated for impairment		55,538			11,306			19,057			15,824			—		101,725
Loans, net of unearned income
Balance, end of period	$	725,470		$	104,102		$	194,539		$	236,551		$	—	$	1,260,662
Balance, end of period: Loans individually evaluated for impairment		—			—			—			—			—		—
Balance, end of period: Loans collectively evaluated for impairment		725,470			104,102			194,539			236,551			—		1,260,662
Balance, end of period: Loans acquired with deteriorated credit quality		184,830			4,005			27,596			30,694			—		247,125

29

Credit Quality

The Company’s investment in non-covered loans by credit quality indicator as of March 31, 2013 and December 31, 2012 is presented in the following tables. Because of the difference in the accounting for acquired loans, the tables below further segregate the Company’s non-covered loans receivable between loans acquired and loans that were not acquired. Loan discounts in the table below represent the adjustment of non-covered acquired loans to fair value at the time of acquisition, as adjusted for income accretion and changes in cash flow estimates in subsequent periods. Asset risk classifications for commercial loans reflect the classification as of March 31, 2013 and December 31, 2012.

(Dollars in thousands)	Non-covered loans excluding acquired loans
	Commercial Real Estate Construction				Commercial Real Estate- Other				Commercial Business
Credit quality indicator by asset risk classification	March 31, 2013		December 31, 2012		March 31, 2013		December 31, 2012		March 31, 2013		December 31, 2012
Pass	$	307,334	$	269,842	$	2,197,301	$	2,162,989	$	2,405,197	$	2,295,788
Special Mention		14,016		16,767		33,328		40,547		19,896		21,640
Substandard		7,516		7,067		40,113		47,710		42,240		49,958
Doubtful		—		—		398		398		48		48
Total		328,866		293,676		2,271,140		2,251,644		2,467,381		2,367,434
Discount		—		—		—		—		—		—
Non-covered commercial loans, net	$	328,866	$	293,676	$	2,271,140	$	2,251,644	$	2,467,381	$	2,367,434

	Mortgage - Prime				Mortgage - Subprime
Credit risk by payment status	March 31, 2013		December 31, 2012		March 31, 2013		December 31, 2012
Current	$	176,807	$	185,843	$	88,799	$	60,454
Past due greater than 30 days		11,871		10,986		7		—
Total		188,678		196,829		88,806		60,454
Discount		—		—		—		—
Non-covered mortgage loans, net	$	188,678	$	196,829	$	88,806	$	60,454

	Indirect Automobile				Credit Card
Credit risk by payment status	March 31, 2013		December 31, 2012		March 31, 2013		December 31, 2012
Current	$	335,953	$	320,148	$	50,169	$	51,117
Past due greater than 30 days		2,236		2,818		654		605
Total	$	338,189	$	322,966	$	50,823	$	51,722

	Home Equity				Consumer - Other
Credit risk by payment status	March 31, 2013		December 31, 2012		March 31, 2013		December 31, 2012
Current	$	1,016,663	$	991,766	$	231,139	$	201,161
Past due greater than 30 days		8,553		8,872		745		981
Total		1,025,216		1,000,638		231,884		202,142
Discount		—		—		—		—
Non-covered consumer loans, net	$	1,025,216	$	1,000,638	$	231,884	$	202,142

30

(Dollars in thousands)	Non-covered acquired loans
	Commercial Real Estate Construction						Commercial Real Estate- Other						Commercial Business
Credit quality indicator by asset risk classification	March 31, 2013			December 31, 2012			March 31, 2013			December 31, 2012			March 31, 2013			December 31, 2012
Pass	$	24,619		$	25,896		$	341,260		$	359,046		$	65,815		$	86,201
Special Mention		2,017			2,410			28,730			28,185			3,758			2,159
Substandard		5,392			5,228			76,232			85,420			3,914			4,808
Doubtful		—			—			4,409			218			931			2,209
Total		32,028			33,534			450,631			472,869			74,418			95,377
Discount		(4,154	)		(3,968	)		(58,440	)		(57,055	)		(7,187	)		(12,144	)
Non-covered commercial loans, net	$	27,874		$	29,566		$	392,191		$	415,814		$	67,231		$	83,233

	Mortgage - Prime					Mortgage - Subprime
Credit risk by payment status	March 31, 2013			December 31, 2012		March 31, 2013		December 31, 2012
Current	$	24,228		$	30,663	$	—	$	—
Past due greater than 30 days		779			779		—		—
Total		25,007			31,442		—		—
Premium (discount)		(1,202	)		1,315		—		—
Non-covered mortgage loans, net	$	23,805		$	32,757	$	—	$	—

	Indirect Automobile				Credit Card
Credit risk by payment status	March 31, 2013		December 31, 2012		March 31, 2013		December 31, 2012
Current	$	3,716	$	4,698	$	—	$	—
Past due greater than 30 days		212		321		—		—
Total		3 ,928		5,019
Premium (discount)		—		—		—		—
Non-covered consumer loans, net	$	3,928	$	5,019	$	—	$	—

	Home Equity						Consumer - Other
Credit risk by payment status	March 31, 2013			December 31, 2012			March 31, 2013			December 31, 2012
Current	$	68,305		$	73,658		$	17,631		$	21,746
Past due greater than 30 days		6,695			7,115			1,238			714
Total		75,000			80,773			18,869			22,460
Discount		(7,523	)		(4,498	)		(1,556	)		(6,805	)
Non-covered consumer loans, net	$	67,477		$	76,275		$	17,313		$	15,655

Credit quality information in the table above includes loans acquired at the gross loan balance, prior to the application of discounts, at March 31, 2013 and December 31, 2012.

31

The Company’s investment in covered loans by credit quality indicator as of March 31, 2013 and December 31, 2012 is presented in the following table. Loan discounts in the table below represent the adjustment of covered loans to fair value at the time of acquisition, as adjusted for income accretion and changes in cash flow estimates in subsequent periods.

(Dollars in thousands)	Covered loans
March 31, 2013	Commercial
Credit quality indicator by asset risk classification	Real Estate - Construction		Real Estate  - Other		Business		Total
Pass	$	48,695	$	185,652	$	34,212	$	268,559
Special Mention		9,568		62,980		3,039		75,587
Substandard		79,496		241,459		42,103		363,058
Doubtful		607		8,241		443		9,291
Total	$	138,366	$	498,332	$	79,797	$	716,495
Discount								(61,842	)
Covered commercial loans, net							$	654,653

	Mortgage
Credit risk by payment status	Prime		Subprime		Total
Current	$	177,811	$	—	$	177,811
Past due greater than 30 days		44,777		—		44,777
Total	$	222,588	$	—	$	222,588
Discount						(45,260	)
Covered mortgage loans, net					$	177,328

	Consumer and Other
Credit risk by payment status	Indirect Automobile		Credit Card		Home Equity		Other		Total
Current	$	—	$	784	$	166,129	$	1,084	$	167,997
Past due greater than 30 days		—		35		54,924		1,637		56,596
Total	$	—	$	819	$	221,053	$	2,721	$	224,593
Discount										(52,401	)
Covered consumer loans, net									$	172,192

32

(Dollars in thousands)	Covered loans
December 31, 2012	Commercial
Credit quality indicator by asset risk classification	Real Estate - Construction		Real Estate  - Other		Business		Total
Pass	$	46,201	$	201,261	$	38,552	$	286,014
Special Mention		9,888		65,498		8,600		83,986
Substandard		97,315		279,171		50,018		426,504
Doubtful		607		8,530		451		9,588
Total	$	154,011	$	554,460	$	97,621	$	806,092
Discount								(78,198	)
Covered commercial loans, net							$	727,894

	Mortgage
Credit risk by payment status	Prime		Subprime		Total
Current	$	183,795	$	—	$	183,795
Past Due greater than 30 days		52,379		—		52,379
Total	$	236,174	$	—	$	236,174
Discount						(49,010	)
Covered mortgage loans, net					$	187,164

	Consumer and Other
Credit risk by payment status	Indirect Automobile		Credit Card		Home Equity		Other		Total
Current	$	—	$	841	$	168,728	$	1,155	$	170,724
Past Due greater than 30 days		—		65		65,997		1,523		67,585
Total	$	—	$	906	$	234,725	$	2,678	$	238,309
Discount										(60,611	)
Covered consumer loans, net									$	177,698

33

Impaired Loans

Information on the Company’s investment in impaired loans is presented in the following tables as of and for the periods indicated.

(Dollars in thousands)	At March 31, 2013							At December 31, 2012
	Recorded Investment		Unpaid Principal Balance		Related Allowance			Recorded Investment		Unpaid Principal Balance		Related Allowance
With no related allowance recorded
Commercial Loans
Real Estate	$	29,043	$	29,043	$	—		$	26,151	$	26,151	$	—
Business		2,926		2,926		—			1,824		1,824		—
With an allowance recorded
Mortgage Loans
Residential - Prime	$	9,037	$	9,216	$	(179	)	$	9,861	$	10,070	$	(209	)
Residential - Subprime		—		—		—			—		—		—
Commercial Loans
Real Estate		145		156		(11	)		3,464		3,663		(199	)
Business		309		449		(140	)		1,334		1,810		(476	)
Consumer Loans
Indirect automobile		978		982		(4	)		865		868		(3	)
Credit card		394		403		(9	)		413		424		(11	)
Home equity		7,343		7,434		(91	)		5,860		5,951		(91	)
Other		346		349		(3	)		307		310		(3	)
Total
Mortgage Loans	$	9,037	$	9,216	$	(179	)	$	9,861	$	10,070		(209	)
Commercial Loans		32,423		32,574		(151	)		32,773		33,448		(675	)
Consumer Loans		9,061		9,168		(107	)		7,445		7,553		(108	)

(Dollars in thousands)	For the Three Months Ended March 31, 2013				For the Three Months Ended March 31, 2012
	Average Recorded Investment		Interest Income Recognized		Average Recorded Investment		Interest Income Recognized
With no related allowance recorded
Commercial Loans
Real Estate	$	30,510	$	28	$	32,007	$	—
Business		3,030		24		6,530		—
With an allowance recorded
Mortgage Loans
Residential - Prime		9,213		—		5,389		—
Residential - Subprime		—		—		—		—
Commercial Loans
Real Estate		157		2		4,657		32
Business		451		5		246		1
Consumer Loans
Indirect automobile		1,267		—		862		—
Credit card		405		—		423		—
Home equity		6,910		—		6,575		—
Other		497		—		748		—
Total
Mortgage Loans		9,213		—		5,389		—
Commercial Loans		34,148		59		43,440		33
Consumer Loans		9,079		—		8,608		—

34

As of March 31, 2013 and December 31, 2012, the Company was not committed to lend additional funds to any customer whose loan was classified as impaired or as a troubled debt restructuring.

NOTE 8 – TRANSFERS AND SERVICING OF FINANCIAL ASSETS (INCLUDING MORTGAGE BANKING ACTIVITY)

Mortgage Banking Activity

The Company through its subsidiary, IMC, originates mortgage loans for sale into the secondary market. The loans originated primarily consist of residential first mortgages that conform to standards established by the GSEs, but can also consist of junior lien loans secured by residential property. These sales are primarily to private companies that are unaffiliated with the GSEs on a servicing released basis. The following table details the mortgage banking activity as of and for the three months ended March 31:

(Dollars in thousands)
Mortgage loans held for sale	2013			2012
Balance, beginning of period	$	267,475		$	153,013
Balance acquired during the period		—			—
Originations		536,673			450,644
Sales		(616,111	)		(475,532	)
Balance, end of period	$	188,037		$	128,125

(Dollars in thousands)
Detail of mortgage income	2013		2012
Fair value changes of derivatives and mortgage loans held for sale, net	$	364	$	56
Gains on sales		18,429		13,563
Servicing and other income, net		138		99
Total mortgage income	$	18,931	$	13,718

For the three months ended March 31, 2013 and 2012, the Company did not actively hedge its mortgage banking activities.

Mortgage Servicing Rights

Mortgage servicing rights are amortized over the remaining servicing life of the loans, with consideration given to prepayment assumptions. Mortgage servicing rights had the following carrying values at March 31, 2013 and December 31, 2012:

	March 31, 2013							December 31, 2012
(Dollars in thousands)	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Mortgage servicing rights	$	1,426	$	(375	)	$	1,051	$	1,234	$	(304	)	$	930

35

NOTE 9 – GOODWILL AND OTHER ACQUIRED INTANGIBLE ASSETS

Goodwill

Changes to the carrying amount of goodwill for the year ended December 31, 2012 and the three months ended March 31, 2013 are provided in the following table.

(Dollars in thousands)	Amount
Balance, December 31, 2011	$	369,811
Goodwill acquired during the period		32,420
Goodwill adjustment to correct an immaterial error		(359	)
Balance, December 31, 2012		401,872
Goodwill acquired during the period		—
Balance, March 31, 2013	$	401,872

The goodwill acquired during the year ended December 31, 2012 was a result of the Florida Gulf acquisition discussed further in Note 4.

The goodwill adjustment in 2012 is a result of the Company’s revised goodwill recorded on its OMNI and Cameron acquisitions. The Company has recorded the adjustment to account for the impact of an immaterial error in accounting for its OMNI and Cameron acquisitions that resulted in a decrease in goodwill of $359,000. The Company revised its valuation of acquired deferred tax assets and property during the first quarter of 2012 as a result of information that existed at the acquisition date but was not available during the prior period. The error was identified in 2012 through the operation of the Company’s internal controls over financial reporting as it related to the Company’s acquisition accounting.

The Company performed the required annual impairment test of goodwill as of October 1, 2012. The Company’s annual impairment test did not indicate impairment at any of the Company’s reporting units as of the testing date, and subsequent to that date, management is not aware of any events or changes in circumstances since the impairment test that would indicate that goodwill might be impaired.

Prior to 2011, the Company recognized goodwill impairment of $9,681,000 at the Company’s LTC subsidiary based on a decrease in operating revenue and income, which resulted in the conclusion that the fair value of LTC may have been reduced below its carrying amount.

Title plant

The Company had title plant assets totaling $6,722,000 at March 31, 2013 and December 31, 2012, respectively. No events or changes in circumstances occurred during 2013 or 2012 to suggest the carrying value of the title plant was not recoverable.

Intangible assets subject to amortization

Definite-lived intangible assets had the following carrying values at March 31, 2013 and December 31, 2012:

	March 31, 2013							December 31, 2012
(Dollars in thousands)	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Core deposit intangibles	$	45,406	$	(27,409	)	$	17,997	$	45,406	$	(26,284	)	$	19,122
Customer relationship intangible asset		1,348		(468	)		880		1,348		(410	)		938
Total	$	46,754	$	(27,877	)	$	18,877	$	46,754	$	(26,694	)	$	20,060

36

NOTE 10 – OTHER REAL ESTATE OWNED

Other real estate owned consists of the following at March 31, 2013 and December 31, 2012:

(Dollars in thousands)	March 31, 2013		December 31, 2012
Real estate owned acquired by foreclosure	$	121,262	$	110,864
Real estate acquired for development or resale		9,199		9,199
Other foreclosed property		1,375		1,473
Total other real estate owned and foreclosed property	$	131,836	$	121,536

At March 31, 2013 and December 31, 2012, other real estate owned is segregated into covered and non-covered properties as follows:

(Dollars in thousands)
March 31, 2013	Non-covered properties		Covered properties		Total
Real estate owned acquired by foreclosure	$	33,391	$	87,871	$	121,262
Real estate acquired for development or resale		9,199		—		9,199
Other foreclosed property		48		1,327		1,375
Total other real estate owned and foreclosed property	$	42,638	$	89,198	$	131,836

(Dollars in thousands)
December 31, 2012	Non-covered properties		Covered properties		Total
Real estate owned acquired by foreclosure	$	35,080	$	75,784	$	110,864
Real estate acquired for development or resale		9,199		—		9,199
Other foreclosed property		14		1,459		1,473
Total other real estate owned and foreclosed property	$	44,293	$	77,243	$	121,536

37

NOTE 11 – DERIVATIVE INSTRUMENTS AND OTHER HEDGING ACTIVITIES

At March 31, 2013 and December 31, 2012, the information pertaining to outstanding derivative instruments is as follows.

		Asset Derivatives					Liability Derivatives
(Dollars in thousands)	Balance Sheet Location	Fair Value				Balance Sheet Location	Fair Value
		March 31, 2013		December 31, 2012			March 31, 2013		December 31, 2012
Derivatives designated as hedging instruments under ASC Topic 815
Interest rate contracts	Other assets	$	1,744	$	499	Other liabilities	$	590	$	1,843
Total derivatives designated as hedging instruments under ASC Topic 815		$	1,744	$	499		$	590	$	1,843
Derivatives not designated as hedging instruments under ASC Topic 815
Interest rate contracts	Other assets	$	22,058	$	25,940	Other liabilities	$	22,059	$	25,940
Forward sales contracts	Other assets		593		2,774	Other liabilities		774		343
Written and purchased options	Other assets		16,813		12,906	Other liabilities		10,749		8,764
Total derivatives not designated as hedging instruments under ASC Topic 815		$	39,464	$	41,620		$	33,582	$	35,047

	Asset Derivatives				Liability Derivatives
(Dollars in thousands)	Notional Amount				Notional Amount
	March 31, 2013		December 31, 2012		March 31, 2013		December 31, 2012
Derivatives designated as hedging instruments under ASC Topic 815
Interest rate contracts	$	35,000	$	35,000	$	35,000	$	35,000
Total derivatives designated as hedging instruments under ASC Topic 815	$	35,000	$	35,000	$	35,000	$	35,000
Derivatives not designated as hedging instruments under ASC Topic 815
Interest rate contracts	$	361,679	$	374,536	$	361,679	$	374,536
Forward sales contracts		66,247		212,028		116,609		53,269
Written and purchased options		434,079		388,793		194,376		185,885
Total derivatives not designated as hedging instruments under ASC Topic 815	$	862,005	$	975,357	$	672,664	$	613,690

The Company is party to collateral agreements with certain derivative counterparties. Such agreements require that the Company maintain collateral based on the fair values of individual derivative transactions. In the event of default by the Company on the related obligation, the counterparty would be entitled to the collateral.

At March 31, 2013 and December 31, 2012, the Company was required to post $2,650,000 in cash as collateral for its derivative transactions, which is included in interest-bearing deposits in banks on the Company’s consolidated balance sheets. The Company does not anticipate additional assets will be required to be posted as collateral, nor does it believe additional assets would be required to settle its derivative instruments immediately if contingent features were triggered at March 31, 2013. The Company’s master netting agreements represent written, legally enforceable bilateral agreements that (1) create a single legal obligation for all individual transactions covered by the agreement to the non-defaulting entity upon an event of default of the counterparty, including bankruptcy, insolvency, or similar proceeding, and (2) provide the non-defaulting entity the right to accelerate, terminate, and close-out on a net basis all transactions under the agreement and to liquidate or set-off collateral promptly upon an event of default of the counterparty. As permitted by generally-accepted accounting principles, the Company does not offset fair value amounts recognized for the right to reclaim cash collateral or the obligation to return cash collateral against recognized fair value amounts of derivatives executed with the same counterparty under a master netting agreement.

The following table reconciled the gross amounts presented in the consolidated balance sheet to the net amounts that would result in the event of offset as of March 31, 2013 and December 31, 2012.

	March 31, 2013
(Dollars in thousands)	Gross Amounts Presented in the Balance Sheet		Gross Amounts Not  Offset in the Balance Sheet						Net Amount
			Derivatives			Collateral(1)
Derivatives subject to master netting arrangements
Derivative assets
Interest rate contracts designated as hedging instruments	$	1,744	$	(185	)	$	—		$	1,559
Interest rate contracts not designated as hedging instruments		22,058		—			—			22,058
Written and purchased options		10,702		—			—			10,702
Total derivative assets subject to master netting arrangements	$	34,504	$	(185	)	$	—		$	34,319
Derivative liabilities
Interest rate contracts designated as hedging instruments		590		(185	)		—			405
Interest rate contracts not designated as hedging instruments		22,059		—			(12,317	)		9,742
Total derivative liabilities subject to master netting arrangements	$	22,649	$	(185	)	$	(12,317	)	$	10,147

(1) Consists of cash collateral recorded at cost, which approximates fair value, and investment securities.

	December 31, 2012
(Dollars in thousands)	Gross Amounts Presented in the Balance Sheet		Gross Amounts Not  Offset in the Balance Sheet
			Derivatives			Collateral(1)			Net Amount
Derivatives subject to master netting arrangements
Derivative assets
Interest rate contracts designated as hedging instruments	$	499	$	(499	)	$	—		$	—
Interest rate contracts not designated as hedging instruments		25,940		—			—			25,940
Written and purchased options		8,763		—			—			8,763
Total derivative assets subject to master netting arrangements	$	35,202	$	(499	)	$	—		$	34,703
Derivative liabilities
Interest rate contracts designated as hedging instruments		1,843		(499	)		—			1,344
Interest rate contracts not designated as hedging instruments		25,940		—			(13,350	)		12,590
Total derivative liabilities subject to master netting arrangements	$	27,783	$	(499	)	$	(13,350	)	$	13,934

(1) Consists of cash collateral recorded at cost, which approximates fair value, and investment securities.

During the three months ended March 31, 2013 and 2012, the Company has not reclassified into earnings any gain or loss as a result of the discontinuance of cash flow hedges because it was probable the original forecasted transaction would not occur by the end of the originally specified term.

At March 31, 2013, the fair value of derivatives that will mature within the next twelve months is $563,000. The Company does not expect to reclassify any amount from accumulated other comprehensive income into interest income over the next twelve months for derivatives that will be settled.

38

At March 31, 2013 and 2012, and for the three months then ended, the information pertaining to the effect of the hedging instruments on the consolidated financial statements is as follows.

(Dollars in thousands)	Amount of Gain (Loss) Recognized in OCI, net of taxes (Effective Portion)				Location of Gain (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	Amount of Gain (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)						Location of Gain (Loss) Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)	Amount of Gain (Loss) Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)
Derivatives in ASC Topic 815 Cash Flow Hedging Relationships	2013		2012			2013			2012				2013		2012
Interest rate contracts	$	751	$	1,558	Other income (expense)	$	(424	)	$	(386	)	Other income (expense)	$	—	$	—
Total	$	751	$	1,558		$	(424	)	$	(386	)		$	—	$	—

(Dollars in thousands)	Location of Gain (Loss) Recognized in Income on Derivatives	Amount of Gain (Loss) Recognized in Income on Derivatives
Derivatives Not Designated as Hedging Instruments under ASC Topic 815		2013			2012
Interest rate contracts	Other income (expense)	$	(1	)	$	—
Forward sales contracts	Mortgage income		(2,912	)		—
Written and purchased options	Mortgage income		1,085			56
Total		$	(1,828	)	$	56

39

NOTE 12 – OTHER COMPREHENSIVE INCOME

Other Comprehensive income

The following is a summary of the tax effects of each component of other comprehensive income for the three months ended March 31 for the periods indicated:

	March 31, 2013
(Dollars in thousands)	Before-Tax Amount			Tax (Expense) Benefit			Net-of-Tax Amount
Unrealized gain on securities:
Unrealized holding losses arising during the period	$	(1,994	)	$	698		$	(1,296	)
Other-than-temporary impairment realized in net income		—			—			—
Less: reclassification adjustment for gains included in net income		(2,328	)		815			(1,513	)
Net unrealized losses		(4,322	)		1,513			(2,809	)
Fair value of derivative instruments designated as cash flow hedges
Change in fair value of derivative instruments designated as cash flow hedges during the period	$	2,073		$	(725	)	$	1,348
Less: reclassification adjustment for losses included in net income		425			(149	)		276
Fair value of derivative instruments designated as cash flow hedges		2,498			(874	)		1,624
Total other comprehensive income (loss)	$	(1,824	)	$	639		$	(1,185	)

	March 31, 2012
(Dollars in thousands)	Before-Tax Amount			Tax (Expense) Benefit			Net-of-Tax Amount
Unrealized gain on securities:
Unrealized holding losses arising during the period	$	(1,056	)	$	370		$	(686	)
Other-than-temporary impairment realized in net income		—			—			—
Less: reclassification adjustment for gains included in net income		(2,800	)		980			(1,820	)
Net unrealized losses		(3,856	)		1,350			(2,506	)
Fair value of derivative instruments designated as cash flow hedges
Change in fair value of derivative instruments designated as cash flow hedges during the period	$	4,951		$	(1,733	)	$	3,218
Less: reclassification adjustment for losses (gains) included in net income		386			(135	)		251
Fair value of derivative instruments designated as cash flow hedges		5,337			(1,868	)		3,469
Total other comprehensive income	$	1,481		$	(518	)	$	963

40

NOTE 13 – SHARE-BASED COMPENSATION

The Company has various types of share-based compensation plans. These plans are administered by the Compensation Committee of the Board of Directors, which selects persons eligible to receive awards and determines the number of shares and/or options subject to each award, the terms, conditions and other provisions of the awards. During the three months ended March 31, 2013 and 2012, the Company did not have any equity awards that were settled in cash.

Stock option plans

The Company issues stock options under various plans to directors, officers and other key employees. The option exercise price cannot be less than the fair value of the underlying common stock as of the date of the option grant and the maximum option term cannot exceed ten years. The stock options granted were issued with vesting periods ranging from one-and-a half to seven years. At March 31, 2013, future option or restricted stock awards of 485,197 shares could be made under approved incentive compensation plans.

The following table represents the compensation expense that is included in salaries and employee benefits expense and related income tax benefits in the accompanying consolidated statements of comprehensive income related to stock options for the three months ended March 31, 2013 and 2012.

(Dollars in thousands, except per share data)	2013		2012
Compensation expense related to stock options	$	533	$	442
Income tax benefit related to stock options		187		155
Impact on basic earnings per share		0.01		0.01
Impact on diluted earnings per share		0.01		0.01

The Company reported $330,000 and $268,000 of excess tax benefits as financing cash inflows during the three months ended March 31, 2013 and 2012, respectively, related to the exercise and vesting of stock option exercises. Net cash proceeds from the exercise of stock options were $3,181,000 and $1,111,000 for the three months ended March 31, 2013 and 2012, respectively.

The Company uses the Black-Scholes option pricing model to estimate the fair value of share-based awards. The following weighted-average assumptions were used for option awards granted during the three-month periods ended March 31:

	2013			2012
Expected dividends		2.6	%		2.6	%
Expected volatility		34.8	%		41.0	%
Risk-free interest rate		1.7	%		0.9	%
Expected term (in years)		8.6			5.0
Weighted-average grant-date fair value	$	15.37		$	14.74

The assumptions above are based on multiple factors, including historical stock option exercise patterns and post-vesting employment termination behaviors, expected future exercise patterns and the expected volatility of the Company’s stock price.

At March 31, 2013, there was $5,720,000 of unrecognized compensation cost related to stock options which is expected to be recognized over a weighted-average period of 5.1 years.

The following table represents the activity related to stock options during the three months ended March 31, 2013 and 2012.

	Number of shares			Weighted average exercise price		Weighted average remaining contract life
Outstanding options, December 31, 2011		1,097,620		$	50.14
Granted		217,230			51.78
Exercised		(34,278	)		28.98
Forfeited or expired		(3,258	)		51.19
Outstanding options, March 31, 2012		1,277,314		$	50.98		5.2 years
Exercisable options, March 31, 2012		796,208			42.59		3.2 years
Outstanding options, December 31, 2012		1,236,075		$	51.48
Granted		75,722			52.36
Exercised		(91,348	)		34.81
Forfeited or expired		(14,270	)		57.19
Outstanding options, March 31, 2013		1,206,179		$	52.73		5.1 Years
Outstanding exercisable at March 31, 2013		777,945		$	52.21		3.4 Years

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At March 31, 2013, the aggregate intrinsic value of shares underlying outstanding stock options and underlying exercisable stock options was $1,671,000 and $1,618,000. Total intrinsic value of options exercised was $1,350,000 and $804,000 for the three months ended March 31, 2013 and 2012, respectively.

Restricted stock plans

The Company issues restricted stock under various plans for certain officers and directors. A supplemental stock benefit plan adopted in 1999 and the 2001, 2005, 2008, and 2010 Incentive Plans allow grants of restricted stock. The plans allow for the issuance of restricted stock awards that may not be sold or otherwise transferred until certain restrictions have lapsed. The holders of the restricted stock receive dividends and have the right to vote the shares. The fair value of the restricted stock shares awarded under these plans is recorded as unearned share-based compensation, a contra-equity account. The unearned compensation related to these awards is amortized to compensation expense over the vesting period (generally three to seven years). The total share-based compensation expense for these awards is determined based on the market price of the Company’s common stock at the date of grant applied to the total number of shares granted and is amortized over the vesting period. As of March 31, 2013, unearned share-based compensation associated with these awards totaled $27,628,000.

The following table represents the compensation expense that was included in salaries and employee benefits expense in the accompanying consolidated statements of income related to restricted stock grants for the three months ended March 31:

(Dollars in thousands)	2013		2012
Compensation expense related to restricted stock	$	1,877	$	1,710

The following table represents unvested restricted stock award activity for the three months ended March 31, 2013 and 2012:

	2013			2012
Balance, beginning of year		538,202			512,112
Granted		148,518			134,988
Forfeited		(11,673	)		(3,055	)
Earned and issued		(89,366	)		(74,928	)
Balance, end of year		585,681			569,117

Phantom stock awards

As part of the 2008 Incentive Compensation Plan and 2009 Phantom Stock Plan, the Company issues phantom stock awards to certain key officers and employees. The award is subject to a vesting period of five to seven years and is paid out in cash upon vesting. The amount paid per vesting period is calculated as the number of vested “share equivalents” multiplied by the closing market price of a share of the Company’s common stock on the vesting date. Share equivalents are calculated on the date of grant as the total award’s dollar value divided by the closing market price of a share of the Company’s common stock on the grant date. Award recipients are also entitled to a “dividend equivalent” on each unvested share equivalent held by the award recipient. A dividend equivalent is a dollar amount equal to the cash dividends that the participant would have been entitled to receive if the participant’s share equivalents were issued in shares of common stock. Dividend equivalents will be deemed to be reinvested as share equivalents that will vest and be paid out on the same date as the underlying share equivalents on which the dividend equivalents were paid. The number of share equivalents acquired with a dividend equivalent is determined by dividing the aggregate of dividend equivalents paid on the unvested share equivalents by the closing price of a share of the Company’s common stock on the dividend payment date.

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The following table represents phantom stock award activity during the periods indicated. During the three months ended March 31, 2013 and 2012, the Company recorded $699,000 and $751,000, respectively, in compensation expense based on the number of share equivalents vested at the end of the period and the current market price of the Company’s stock.

	Number of share equivalents			Dividend equivalents			Total share equivalents			Value of share equivalents(1)
Balance, December 31, 2011		232,921			8,942			241,863		$	11,924,000
Granted		97,927			2,109			100,036			5,349,000
Forfeited share equivalents		(2,191	)		(95	)		(2,286	)		(122,000	)
Vested share equivalents		(5,483	)		(350	)		(5,833	)		(309,000	)
Balance, March 31, 2012		323,174			10,606			333,780		$	17,847,000
Balance, December 31, 2012		318,729			16,035			334,764		$	16,444,000
Granted		158,213			3,092			161,305			8,068,000
Forfeited share equivalents		(5,176	)		(243	)		(5,419	)		(271,000	)
Vested share equivalents		(30,697	)		(2,120	)		(32,817	)		(1,655,000	)
Balance, March 31, 2013		441,069			16,764			457,833		$	22,901,000

(1) Except for vested share payments, which are based on the cash paid at the time of vesting, the value of share equivalents is calculated based on the market price of the Company’s stock at the end of the respective periods. The market price of the Company’s stock was $50.02 and $53.47 on March 31, 2013 and 2012, respectively.

NOTE 14 – COMMITMENTS AND CONTINGENCIES

Off-balance sheet commitments

The Company is a party to financial instruments with off-balance sheet risk in the normal course of business to meet the financing needs of its customers. These financial instruments include commitments to extend credit and standby letters of credit. Such commitments involve, to varying degrees, elements of credit and interest rate risk in excess of the amount recognized in the consolidated balance sheets. The same credit policies are used in these commitments as for on-balance sheet instruments. The Company’s exposure to credit loss in the event of nonperformance by the other parties is represented by the contractual amount of the financial instruments. At March 31, 2013, the fair value of guarantees under commercial and standby letters of credit was $772,000. This amount represents the unamortized fee associated with these guarantees and is included in the consolidated balance sheet of the Company. This fair value will decrease over time as the existing commercial and standby letters of credit approach their expiration dates.

At March 31, 2013 and December 31, 2012, the Company had the following financial instruments outstanding, whose contract amounts represent credit risk:

	Contract Amount
(Dollars in thousands)	March 31, 2013		December 31, 2012
Commitments to grant loans	$	329,833	$	192,295
Unfunded commitments under lines of credit		2,533,921		2,372,971
Commercial and standby letters of credit		77,201		62,207

Commitments to extend credit are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Since many of the commitments are expected to be drawn upon, the total commitment amounts generally represent future cash requirements. The Company evaluates each customer’s creditworthiness on a case-by-case basis. The amount of collateral, if deemed necessary by the Company upon extension of credit, is based on management’s credit evaluation of the counterparty.

Unfunded commitments under commercial lines-of-credit, revolving credit lines and overdraft protection agreements are commitments for possible future extensions of credit to existing customers. Many of these types of commitments do not contain a specified maturity date and may not be drawn upon to the total extent to which the Company is committed.

Commercial and standby letters of credit are conditional commitments issued by the Company to guarantee the performance of a customer to a third party. These guarantees are primarily issued to support public and private borrowing arrangements, including commercial paper issuance, bond financing, and similar transactions. The credit risk involved in issuing letters or credit is essentially the same as that involved in extending loan facilities to customers and as such, are collateralized when necessary, generally in the form of marketable securities and cash equivalents.

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Legal proceedings

The nature of the business of the Company’s banking and other subsidiaries ordinarily results in a certain amount of claims, litigation, investigations and legal and administrative cases and proceedings, all of which are considered incidental to the normal conduct of business. Some of these claims are against entities or assets of which the Company is a successor or acquired in business acquisitions, and certain of these claims will be covered by loss sharing agreements with the FDIC. The Company has asserted defenses to these litigation and, with respect to such legal proceedings, intends to continue to defend itself vigorously, litigating or settling cases according to management’s judgment as to what is in the best interest of the Company and its shareholders.

The Company assesses its liabilities and contingencies in connection with outstanding legal proceedings utilizing the latest information available. Where it is probable that the Company will incur a loss and the amount of the loss can be reasonably estimated, the Company records a liability in its consolidated financial statements. These legal reserves may be increased or decreased to reflect any relevant developments on a quarterly basis. Where a loss is not probable or the amount of loss is not estimable, the Company does not accrue legal reserves. While the outcome of legal proceedings is inherently uncertain, based on information currently available, advice of counsel and available insurance coverage, the Company’s management believes that it has established appropriate legal reserves. Any liabilities arising from pending legal proceedings are not expected to have a material adverse effect on the Company’s consolidated financial position, consolidated results of operations or consolidated cash flows. However, in the event of unexpected future developments, it is possible that the ultimate resolution of these matters, if unfavorable, may be material to the Company’s consolidated financial position, consolidated results of operations or consolidated cash flows.

As of the date of this filing, the Company believes it is reasonably possible to incur losses above amounts already accrued associated with legal proceedings between $150,000 and $750,000.

NOTE 15 – FAIR VALUE MEASUREMENTS

The Company has segregated all financial assets and liabilities that are measured at fair value on a recurring basis into the most appropriate level within the fair value hierarchy based on the inputs used to estimate the fair value at the measurement date in the tables below.

(Dollars in thousands)			Fair Value Measurements Using
Recurring Basis Description	March 31,   2013		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Available -for-sale securities	$	1,951,548	$	35,008	$	1,916,540	$	—
Derivative instruments		41,208		—		41,208		—
Total	$	1,992,756	$	35,008	$	1,957,748	$	—
Liabilities
Derivative instruments		34,383		—		34,383		—
Total	$	34,383	$	—	$	34,383	$	—

(Dollars in thousands)			Fair Value Measurements Using
Recurring Basis Description	December 31, 2012		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Available -for-sale securities	$	1,745,004	$	—	$	1,745,004	$	—
Derivative instruments		42,119		—		42,119		—
Total	$	1,787,123	$	—	$	1,787,123	$	—
Liabilities
Derivative instruments		36,890		—		36,890		—
Total	$	36,890	$	—	$	36,890	$	—

During the first quarter of 2013, available for sale securities with a market value of $35,008,000 at March 31, 2013 were transferred into the Level 1 fair value measurement category in the table above from the Level 2 category as disclosed at December 31, 2012. The securities were included in the Level 1 category at March 31, 2013 because their fair value was based on a quoted market price in an active market for an identical asset.

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Gains and losses (realized and unrealized) included in earnings (or changes in net assets) for the first three months of 2013 related to assets and liabilities measured at fair value on a recurring basis are reported in noninterest income or other comprehensive income as follows:

(Dollars in thousands)	Noninterest income			Other comprehensive income
Total gains (losses) included in earnings (or changes in net assets)	$	(3,012	)	$	—
Change in unrealized gains (losses) relating to assets still held at December 31, 2012		—			(468	)

The Company has segregated all financial assets and liabilities that are measured at fair value on a nonrecurring basis into the most appropriate level within the fair value hierarchy based on the inputs used to determine the fair value at the measurement date in the tables below.

(Dollars in thousands)			Fair Value Measurements Using
Nonrecurring Basis Description	March 31,   2013		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Loans	$	6,295	$	—	$	6,295	$	—
Mortgage loans held for sale		46,966		—		46,966		—
OREO		23,710		—		23,710		—
Total	$	76,971	$	—	$	76,971	$	—

(Dollars in thousands)			Fair Value Measurements Using
Nonrecurring Basis Description	December 31, 2012		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Loans	$	6,388	$	—	$	6,388	$	—
Mortgage loans held for sale		32,753		—		32,753		—
OREO		20,427		—		20,427		—
Total	$	59,568	$	—	$	59,568	$	—

The tables above exclude the initial measurement of assets and liabilities that were acquired as part of the Florida Gulf, OMNI, Cameron, and Florida Trust Company acquisitions completed in 2012 and 2011. These assets and liabilities were recorded at their fair value upon acquisition in accordance with generally-accepted accounting principles and were not re-measured during the periods presented unless specifically required by generally accepted accounting principles. Acquisition date fair values represent either Level 2 fair value measurements (investment securities, OREO, property, equipment, and debt) or Level 3 fair value measurements (loans, deposits, and core deposit intangible asset).

In accordance with the provisions of ASC Topic 310, the Company records loans considered impaired at their estimated fair value. A loan is considered impaired if it is probable the Company will be unable to collect all amounts due according to the contractual terms of the loan agreement. Fair value is measured at the estimated fair value of the collateral for collateral-dependent loans. Impaired non-covered loans with an outstanding balance of $6,624,000 were recorded at their fair value at March 31, 2013. These loans include a reserve of $329,000 included in the Company’s allowance for credit losses at March 31, 2013. Impaired non-covered loans with an outstanding balance of $7,269,000 were recorded at their fair value at December 31, 2012. These loans include a reserve of $880,000 included in the Company’s allowance for credit losses at December 31, 2012.

The Company did not record any liabilities at fair value for which measurement of the fair value was made on a nonrecurring basis during the three months ended March 31, 2013 and 2012.

The Company may elect the fair value option, which permits the Company to choose to measure eligible financial assets and liabilities at fair value at specified election dates and recognize prospective changes in unrealized gains and losses on items for which the fair value option has been elected in earnings at each reporting date. The Company has currently chosen not to elect the fair value option for any items that are not already required to be measured at fair value in accordance with generally accepted accounting principles, and as such has not included any gains or losses in earnings for the three months ended March 31, 2013 and 2012.

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NOTE 16 – FAIR VALUE OF FINANCIAL INSTRUMENTS

The estimated fair value of a financial instrument is the current amount that would be exchanged between willing parties, other than in a forced liquidation. Fair value is best determined based upon quoted market prices. However, in many instances, there are no quoted market prices for the Company’s various financial instruments. In cases where quoted market prices are not available, fair values are based on estimates using present value or other valuation techniques. Those techniques are significantly affected by the assumptions used, including the discount rate and estimates of future cash flows. Accordingly, the fair value estimates may not be realized in an immediate settlement of the instrument. ASC Topic 825 excludes certain financial instruments and all non-financial instruments from its disclosure requirements. Accordingly, the aggregate fair value amounts presented may not necessarily represent the underlying fair value of the Company.

The following methods and assumptions were used to estimate the fair value of each class of financial instruments for which it is practicable to estimate that value. Refer to Note 1 to these financial statements for the methods and assumptions used to measure the fair value of investment securities and derivative instruments.

Cash and cash equivalents

The carrying amounts of cash and cash equivalents approximate their fair value.

Loans

The fair values of non-covered mortgage loans receivable are estimated based on present values using entry-value rates (the interest rate that would be charged for a similar loan to a borrower with similar risk at the indicated balance sheet date) at March 31, 2013 and December 31, 2012, weighted for varying maturity dates. Other non-covered loans receivable are valued based on present values using entry-value interest rates at March 31, 2013 and December 31, 2012 applicable to each category of loans, which would be classified within Level 3 of the hierarchy. Fair values of mortgage loans held for sale are based on commitments on hand from investors or prevailing market prices. Covered loans are measured using projections of expected cash flows, exclusive of the shared-loss agreements with the FDIC. Fair value of the covered loans included in the table below reflects the current fair value of these loans, which is based on an updated estimate of the projected cash flow as of the dates indicated. The fair value associated with the loans include estimates related to expected prepayments and the amount and timing of undiscounted expected principal, interest and other cash flows, which also would be classified within Level 3 of the hierarchy.

Accrued Interest Receivable and Accrued Interest Payable: The carrying amount of accrued interest approximates fair value because of the short maturity of these financial instruments.

FDIC Loss Share Receivable: The fair value is determined using projected cash flows from loss sharing agreements based on expected reimbursements for losses at the applicable loss sharing percentages based on the terms of the loss share agreements. Cash flows are discounted to reflect the timing and receipt of the loss sharing reimbursements from the FDIC. The fair value of the Company’s FDIC loss share receivable would be categorized within Level 3 of the hierarchy.

Deposits

The fair values of NOW accounts, money market deposits and savings accounts are the amounts payable on demand at the reporting date. Certificates of deposit were valued using a discounted cash flow model based on the weighted-average rate at March 31, 2013 and December 31, 2012 for deposits of similar remaining maturities. The fair value of the Company’s deposits would therefore be categorized within Level 3 of the fair value hierarchy.

Short-term borrowings

The carrying amounts of short-term borrowings maturing within ninety days approximate their fair values.

Long-term debt

The fair values of long-term debt are estimated using discounted cash flow analyses based on the Company’s current incremental borrowing rates for similar types of borrowing arrangements. The fair value of the Company’s long-term debt would therefore be categorized within Level 3 of the fair value hierarchy.

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Off-balance sheet items

The Company has outstanding commitments to extend credit and standby letters of credit. These off-balance sheet financial instruments are generally exercisable at the market rate prevailing at the date the underlying transaction will be completed. At March 31, 2013 and December 31, 2012, the fair value of guarantees under commercial and standby letters of credit was immaterial.

The estimated fair values and carrying amounts of the Company’s financial instruments are as follows as of the dates indicated:

	March 31, 2013				December 31, 2012
(Dollars in thousands)	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Financial Assets
Cash and cash equivalents	$	626,516	$	626,516	$	970,977	$	970,977
Investment securities		2,149,990		2,154,648		1,950,067		1,956,502
Loans and loans held for sale		8,783,012		8,902,016		8,766,055		8,800,563
FDIC loss share receivable		284,471		126,727		423,069		207,222
Derivative instruments		41,208		41,208		42,119		42,119
Accrued interest receivable		32,707		32,707		32,183		32,183
Financial Liabilities
Deposits	$	10,686,267	$	10,480,000	$	10,748,277	$	10,594,885
Short-term borrowings		294,156		294,156		303,045		303,045
Long-term debt		323,046		286,986		423,377		394,490
Derivative instruments		34,383		34,383		36,890		36,890
Accrued interest payable		6,421		6,421		6,615		6,615

The fair value estimates presented herein are based upon pertinent information available to management as of March 31, 2013 and December 31, 2012. Although management is not aware of any factors that would significantly affect the estimated fair value amounts, such amounts have not been comprehensively revalued for purposes of these financial statements since that date and, therefore, current estimates of fair value may differ significantly from the amounts presented herein.

NOTE 17 – SUBSEQUENT EVENTS

On April 25, 2013, the Company announced certain expense reduction initiatives, including the planned closure or consolidation of nine branches. The Company expects the expense initiatives to incur one-time costs and reduce net expenses in the near term and does not expect a material impact to financial position or liquidity.

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

The following discussion and analysis is intended to assist readers in understanding the consolidated financial condition and results of operations of IBERIABANK Corporation and its wholly owned subsidiaries (collectively, the “Company”), as of March 31, 2013 and December 31, 2012 and for the three months ended March 31, 2013 and 2012. This discussion should be read in conjunction with the unaudited consolidated financial statements, accompanying footnotes and supplemental financial data included herein.

To the extent that statements in this Report relate to future plans, objectives, financial results or performance of the Company, these statements are deemed to be forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Such statements, which are based on management’s current information, estimates and assumptions and the current economic environment, are generally identified by the use of the words “plan”, “believe”, “expect”, “intend”, “anticipate”, “estimate”, “project” or similar expressions. The Company’s actual strategies and results in future periods may differ materially from those currently expected due to various risks and uncertainties.

Factors that may cause actual results to differ materially from these forward-looking statements are discussed in the Company’s Annual Report on Form 10-K and other filings with the Securities and Exchange Commission (the “SEC”), available at the SEC’s website, http://www.sec.gov, and the Company’s website, http://www.iberiabank.com, under the heading “Investor Information.” All information in this discussion is as of the date of this Report. The Company undertakes no duty to update any forward-looking statement to conform the statement to actual results or changes in the Company’s expectations.

Included in this discussion and analysis are descriptions of the composition, performance, and credit quality of the Company’s loan portfolio. The Company has three descriptions of loans that are used to categorize the portfolio into its distinct risks and rewards to consolidated financial statements. “Acquired loans” refer to all loans acquired in a business combination. Because of the loss protection provided by the FDIC, the risks of the loans and foreclosed real estate acquired in the CapitalSouth Bank (“CSB”), Orion Bank (“Orion”), Century Bank (“Century”), and Sterling Bank (“Sterling”) acquisitions, which are covered by loss share agreements with the Federal Deposit Insurance Corporation (the “FDIC”), are significantly different from those assets not similarly covered. Accordingly, the Company reports loans subject to the loss share agreements as “covered loans” in the information below and loans that are not subject to the loss share agreement as “non-covered loans.” The subset of acquired loans that is not subject to loss share agreements are referred to as “non-covered acquired loans.” Loans that are neither subject to loss share agreements nor acquired in a business combination are referred to as “legacy loans” or “organic loans.”

EXECUTIVE OVERVIEW

The Company offers commercial and retail banking products and services to customers in locations in six states through IBERIABANK. The Company also operates mortgage production offices in 12 states through IBERIABANK’s subsidiary, IBERIABANK Mortgage Company (“IMC”), and offers a full line of title insurance and closing services throughout Arkansas and Louisiana through Lenders Title Company (“LTC”) and its subsidiaries. IBERIA Capital Partners L.L.C. (“ICP”) provides equity research, institutional sales and trading, and corporate finance services. IB Aircraft Holdings, LLC owns a fractional share of an aircraft used by management of the Company and its subsidiaries. IBERIA Asset Management Inc. (“IAM”) provides wealth management and trust services for commercial and private banking clients. IBERIA CDE, L.L.C. is engaged in the purchase of tax credits.

The Company’s focus is that of a high performing institution. Management believes that improvement in core earnings drives shareholder value, and the Company has adopted a mission statement that is designed to provide guidance for our management, associates and Board of Directors regarding the sense of purpose and direction of the Company. We are shareholder- and client-focused, expect high performance from our associates, believe in a strong sense of community and strive to make the Company a great place to work.

During 2013, the Company continued to execute its business model successfully, as evidenced by solid organic loan growth during the first three months of 2013, despite the challenges of the current operating environment, which include seasonal headwinds, increased competition, enhanced regulatory scrutiny and continued interest rate pressure. The Company also continued to develop its noninterest revenue streams, particularly from its wealth management and mortgage production subsidiaries. The Company believes it remains well positioned for future growth opportunities, as evidenced by the strength in its liquidity, core funding, and capitalization levels. In the first quarter of 2013, operating results were significantly impacted by two events. First, the adoption of a new accounting standard, ASU No. 2012-06, reduced the remaining period over which the Company’s indemnification assets will be amortized. As a result of the shortened amortization period, and based on current cash flow expectations and other assumptions, the Company’s indemnification asset amortization increased amortization expense in the three-month period ended March 31, 2013 by $5.4 million. Second, based on improving economic trends, their impact on the amount and timing of expected future cash flows, and delays in the foreclosure process, the Company concluded that certain previously expected losses are probable of not being collected from the FDIC because such projected losses are no longer anticipated to occur or will occur beyond the reimbursable periods of the loss share agreements. As a result, the Company impaired the indemnification assets by $31.8 million through a charge through earnings.

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In 2013, the Company continued to experience growth in both income statement and balance sheet metrics. These areas of growth were driven by investments in markets and business lines. Growth was offset, however, by the adoption of ASU No. 2012-06 and the impairment of the FDIC loss share receivables. For the three months ended March 31, 2013 these investments contributed to net interest income growth of $1.0 million to $92.9 million and noninterest income growth of $7.1 million to $44.5 million. Non-covered loans grew by $185.0 million, or 2.5% during the first quarter of 2013 to $7.6 billion at March 31, 2013, while covered loans decreased by $88.6 million. The mix of deposits continued a shift to noninterest-bearing, which represented 18.5% of total deposits as of March 31, 2013, up from 18.3% from December 31, 2012. Thus far in 2013, the Company’s liquidity, both on balance sheet and off balance sheet, continued to be favorable, exhibited by liquidity ratios that exceeded peer levels. The Company had cash of $626.5 million at March 31, 2013, and the Company has funding availability from the Federal Home Loan Bank (the “FHLB”) and correspondent bank lines to continue to meet cash flow needs. Additionally, its capital ratios were considerably in excess of “well capitalized” from a regulatory perspective and above peer levels, and its primary risk measures remained favorable. All of these factors allowed the Company to maintain its strategic positioning within the challenging banking environment and provided a strong base from which to continue to grow its balance sheet and remain positioned to provide anticipated increases in shareholder value throughout the rest of 2013.

During 2012, the Company’s mortgage origination and title businesses delivered record years for the Company, and helped to drive noninterest income growth over 2011. These two businesses continue to perform well thus far in 2013, as mortgage origination volume and an improved margin on the sales of these loans led to a 38.0% increase in mortgage income over the three-month period ended March 31, 2012. Title income was $0.5 million, or 10.8%, higher than in the first quarter of 2012. The Company’s trust and wealth management businesses also continued to see the Company’s investment in these businesses pay off, as broker commissions increased 15.5% over the same period of 2012.

During the first three months of 2013, noninterest income increased by $7.1 million to $44.5 million, a 19.0% increase, as the Company began realizing better returns on its investments as compared to prior years. Noninterest expense also increased. On a basis consistent with generally accepted accounting principles (“GAAP”), noninterest expense was $144.9 million for the three months ended March 31, 2013, an increase of $45.0 million versus the same three-month period of 2012. The largest component of the increase was a $31.8 million impairment of the Company’s FDIC loss share receivables during the first quarter of 2013 noted above. Noninterest expense, excluding the impairment and other non-operating items (“non-GAAP”, see table 1 below) was $110.1 million for the same period, which represented an increase of $11.2 million versus the prior year. The increase in operating noninterest expense was a result of higher employee-related expenses as the Company increased headcount since the first quarter of 2013, both from the Florida Gulf acquisition and from strategic hires to continue growing its business lines. On a GAAP basis, noninterest expense increased due to the factors contributing to the increase in non-GAAP noninterest expense, but was offset by a reduction in merger-related expenses of $0.3 million.

The provision for credit losses decreased $6.2 million due to an improvement in asset quality in the legacy portfolio over the past 12 months, but was partially offset by additional expected losses in the acquired loan portfolios.

All of these factors led net income available to common shareholders for the three months ended March 31, 2013 to decrease $18.7 million from the first quarter of 2012 to $0.7 million or $0.02 per diluted share. Pre-provision operating earnings (non-GAAP) increased $3.1 million to $23.1 million or $0.78 on a per share basis.

49

Balance Sheet Position and Results of Operations

During the first three months of 2013, the Company’s income available to common shareholders totaled $0.7 million, or $0.02 per share on a diluted basis, a 96.3% decrease compared to the $19.4 million earned during the same period of 2012. On a per share basis, this represents a decrease of 96.3% from the $0.66 per diluted share earned in the first quarter of 2012. On an operating basis (non-GAAP), per share earnings increased $0.24 per share to $0.86. Primary drivers of the increase in operating earnings over the prior year include the earnings from the net assets acquired from Florida Gulf and a decrease in merger-related noninterest expenses. Key components of the Company’s performance in the first quarter of 2013 are summarized below.

• Total assets at March 31, 2013 were $13.0 billion, down $178.5 million, or 1.4%, from December 31, 2012. The decrease was primarily the result of decreases in cash held to fund seasonal deposit runoff, covered assets, and the assets associated with the indemnification agreements with the FDIC. Due to the impairment and amortization of the FDIC loss share receivable, the balance decreased $138.6 million, or 32.8%, since December 31, 2012, and covered loans decreased $88.6 million, or 8.1%, since 2012. Offsetting these decreases was $185.0 million in loan growth in the Company’s non-covered loan portfolio across many of the Company’s markets.

• Total loans at March 31, 2013 were $8.6 billion, an increase of $96.4 million, or 1.1%, from $8.5 billion at December 31, 2012. As noted above, loan growth during the first quarter was driven by an increase in non-covered loans. Total non-covered loans increased $185.0 million, or 2.5%, during the first three months of 2013. Covered loans decreased $88.6 million from December 31, 2012, as covered loans were paid down or charged off and submitted for reimbursement.

• After seeing considerable deposit growth during the fourth quarter of 2012, total customer deposits decreased $62.0 million, or less than 1%, to $10.7 billion at March 31, 2013. Deposits decreased as a result of a decrease in seasonal deposits from December 31, 2012. By product type, the Company’s noninterest-bearing deposits increased $4.1 million, or 0.2%, but that growth was offset by a decrease of $66.2 million in interest-bearing deposits. The decrease in the Company’s interest-bearing deposits was a result of a $76.0 million, or 3.5%, decrease in time deposits from December 31, 2012. The decline in time deposits is the result of the Company’s effort to prudently manage the profitability of the deposit base with liquidity needs. Interest-bearing demand deposits increased $9.8 million. Although deposit competition remained intense thus far in 2013, the Company was able to generate growth across its many other deposit products. Organic deposit growth was driven by growth in the Company’s Birmingham, Alabama, Little Rock, Arkansas, and Houston, Texas markets.

• Shareholders’ equity decreased $5.8 million, or less than 1%, to $1.5 billion at March 31, 2013. The decrease was the result of $10.1 million in dividends paid on the Company’s common stock during the period.

• Net interest income increased $1.0 million, or 1.1%, in the first quarter of 2013 when compared to the same period of 2012. This increase was attributable to a $3.8 million, or 21.8%, decrease in interest expense, but was offset partially by a $2.8 million decrease in interest income. Interest income was positively affected by a $1.4 billion increase in average earning assets, due to both the inclusion of Florida Gulf earning assets in the current year and the organic growth in loans since December 2012. The increase in income due to growth in the Company’s earning asset base was offset by a 55 basis point decline in the yield earned on these assets, primarily the result of a 51 basis point decrease in net loan yield. The net loan yield was negatively impacted by a 210 basis point decrease in the covered loan yield, driven by additional amortization on the loss share receivables. Compared to 2012, the Company’s net interest margin ratio on a tax-equivalent basis decreased to 3.23% from 3.59% due to changes in the volume and mix of the Company’s assets and liabilities, the increased amortization of the loss share receivables, and rate decreases driven by federal funds, Treasury, and other Company borrowing rate decreases during 2012 and 2013.

• Noninterest income increased $7.1 million, or 19.0%, during the first three months of 2013 when compared to the same 2012 period. The increase was primarily driven by a $5.2 million increase in mortgage income. Increases of $0.5 million in both title insurance income and broker commissions also contributed to the total increase from 2012.

• Additional expenses incurred due to the expanded size of the Company drove the increase in noninterest expenses in 2013 over 2012. Noninterest expense increased $45.0 million, or 45.1%, when compared to the first quarter of 2012. The increase in total noninterest expense was attributable to the $31.8 million impairment recorded in the quarter on the Company’s loss share receivables, a $2.3 million debt prepayment penalty on the retirement of FHLB borrowings, higher salary and employee benefit costs of $7.7 million, as well as increased occupancy, equipment, and other branch expenses resulting from the Company’s expanded footprint. In addition to personnel and other costs related to the expanding size of the Company, noninterest expenses were driven higher in 2013 by professional services expenses, as well as increased data processing expenses as the Company expands its business operations.

• During the first quarter of 2013, the Company incurred costs associated with four branch closures that affected the Company’s net income and per-share earnings for the three-month period. The Company incurred these costs to improve its long-term operating efficiency, risk-adjusted profitability, and long-term growth prospects. The total cost of these initiatives affected total noninterest expense and is discussed in further detail in the “Noninterest expense” section below.

50

• The Company recorded a reversal of provision for credit losses of $3.4 million during the first quarter of 2013, $6.2 million lower than the $2.9 million provision recorded in the first quarter of 2012. The reversal of provision in 2013 was primarily the result of an overall improvement in the Company’s asset quality, especially in its non-covered, non-acquired portfolio. The improvement in asset quality from December 31, 2012 has offset the need for a higher allowance for credit losses as a result of loan growth in 2013. As of March 31, 2013, the allowance for credit losses as a percent of total loans was 2.21%, compared to 2.96% at December 31, 2012.

• The Company paid a quarterly cash dividend of $0.34 per common share in the first quarter of 2013, consistent with the quarterly dividends paid in 2012.

This discussion and analysis contains financial information determined by methods other than in accordance with GAAP. The Company’s management uses these non-GAAP financial measures in their analysis of the Company’s performance. These measures typically adjust GAAP performance measures to exclude the effects of the amortization of intangibles and include the tax benefit associated with revenue items that are tax-exempt, as well as adjust income available to common shareholders for certain significant activities or transactions that, in management’s opinion, distort period-to-period comparisons of the Company’s performance. Since the presentation of these GAAP performance measures and their impact differ between companies, management believes presentations of these non-GAAP financial measures provide useful supplemental information that is essential to a proper understanding of the operating results of the Company’s core businesses. These non-GAAP disclosures should not be viewed as a substitute for operating results determined in accordance with GAAP, nor are they necessarily comparable to non-GAAP performance measures that may be presented by other companies. Reconciliations of GAAP to non-GAAP disclosures are included in the table below.

TABLE 1 – RECONCILIATIONS OF NON-GAAP FINANCIAL MEASURES

	2013									2012
	Dollar Amount						Per share(1)			Dollar Amount						Per share(1)
(In thousands, except per share amounts)	Pre-tax			After-tax						Pre-tax			After-tax
Net income (GAAP)	$	(4,159	)	$	717		$	0.02		$	26,527		$	19,393		$	0.66
Additional FDIC loss share receivable amortization		5,453			3,544			0.12			—			—			—
Merger-related expenses		157			102			0.00			500			325			0.01
Severance expenses		97			63			0.00			219			142			0.00
Impairment of indemnification asset		31,813			20,678			0.70			—			—			—
Debt prepayment		2,307			1,500			0.05			—			—			—
Occupancy and branch closure expenses		375			244			0.01			—			—			—
Professional expenses and litigation settlement		—			—			—			220			143			0.01
(Gain) loss on sale of investments		(2,359	)		(1,533	)		(0.05	)		(2,836	)		(1,843	)		(0.06	)
Operating earnings (non-GAAP)		33,684			25,315			0.86			24,630			18,160			0.62
Covered loan provision for credit losses		29			19			0.00			1,853			1,205			0.04
Acquired loan provision for credit losses		596			387			0.01			—			—			—
Other (reversal of) provision for credit losses		(4,002	)		(2,601	)		(0.09	)		1,004			652			0.02
Pre-provision operating earnings (non-GAAP)	$	30,307		$	23,120		$	0.78		$	27,487		$	20,017		$	0.68

(1) Per share amounts may not appear to foot due to rounding.

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(Dollars in thousands)
	2013			2012
Net interest income	$	92,871		$	91,861
Add: Effect of tax benefit on interest income		2,464			2,372
Net interest income (TE) (Non-GAAP)		95,335			94,233
Noninterest income		44,491			37,396
Add: Effect of tax benefit on noninterest income		506			512
Noninterest income (TE) (Non-GAAP)		44,997			37,908
Noninterest expense		144,898			99,873
Less: Intangible amortization expense		1,183			1,290
Tangible noninterest expense (Non-GAAP)		143,715			98,583
Net income		717			19,393
Add: Effect of intangible amortization, net of tax		769			839
Cash earnings (Non-GAAP)		1,486			20,232
Total assets		12,951,199			11,791,283
Less: Intangible assets		428,522			396,908
Total tangible assets (Non-GAAP)		12,522,677			11,394,375
Average assets		13,075,008			11,688,081
Less: Average intangible assets		429,071			401,205
Total average tangible assets (Non-GAAP)		12,645,937			11,286,876
Total shareholders’ equity		1,524,070			1,495,630
Less: Intangible assets		428,522			396,908
Total tangible shareholders’ equity (Non-GAAP)		1,095,548			1,098,722
Average shareholders’ equity		1,531,068			1,496,782
Less: Average intangible assets		429,071			401,205
Average tangible shareholders’ equity (Non-GAAP)		1,101,997			1,095,577
Net income per common share - diluted	$	0.02		$	0.66
Add: Effect of intangible amortization, net of tax		0.03			0.04
Cash earnings per share - diluted (Non-GAAP)	$	0.05		$	0.70
Return on average common equity		0.19	%		5.21	%
Add: Effect of intangibles		0.36			2.22
Return on average tangible common equity (Non-GAAP)		0.55			7.43
Efficiency ratio		105.5	%		77.3	%
Less: Effect of tax benefit related to tax-exempt income		(2.2	)		(1.7	)
Efficiency ratio (TE) (Non-GAAP)		103.3			75.6
Less: Effect of amortization of intangibles		(0.9	)		(1.0	)
Tangible efficiency ratio (TE) (Non-GAAP)		102.4	%		74.6	%

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FINANCIAL CONDITION

EARNING ASSETS

Interest income associated with earning assets is the Company’s primary source of income. Earning assets are composed of interest or dividend-earning assets, including loans, securities, short-term investments and loans held for sale. Earning assets averaged $11.8 billion during the first quarter of 2013, a $1.4 billion, or 13.2%, increase when compared to the same period of 2012. The increase from the prior year was primarily the result of earning assets acquired during 2012 and the Company’s growth during the past twelve months. The following discussion highlights the Company’s major categories of earning assets.

Loans and Leases

The Company’s total loan portfolio increased $96.4 billion, or 1.1%, to $8.6 billion at March 31, 2013, compared to $8.5 billion at December 31, 2012. The increase was driven by non-covered loan growth of $185.0 billion during the current quarter, but was tempered by a decrease in loans covered by loss share agreements of $88.6 million, or 8.1%. By loan type, the increase was primarily from commercial loan growth of $40.1 million and consumer loan growth of $54.9 million during the first three months of 2013, 0.6% and 3.0% higher, respectively, than at the end of 2012.

The major categories of loans outstanding at March 31, 2013 and December 31, 2012 are presented in the following tables, segregated into covered loans and non-covered loans, including non-covered loans acquired from OMNI, Cameron, and Florida Gulf. The carrying amount of the covered loans and loans acquired from OMNI, Cameron, and Florida Gulf consisted of loans accounted for in accordance with ASC Topic 310-30 (i.e., loans impaired at the time of acquisition) and loans subject to ASC Topic 310-30 by analogy only (i.e., loans performing at the time of acquisition) as detailed in the following table.

TABLE 2 – SUMMARY OF LOANS

(In thousands)	Commercial				Mortgage				Consumer and Other
March 31, 2013	Real Estate		Business		1-4 Family		Construction		Indirect		Home Equity		Credit Card		Other		Total
Covered loans
Impaired(1)	$	146,932	$	2,832	$	18,388	$	—	$	—	$	21,917	$	—	$	768	$	190,837
Performing(1)		420,689		84,200		158,940		—		—		146,561		819		2,127		813,336
Total covered loans		567,621		87,032		177,328		—		—		168,478		819		2,895		1,004,173
Non-covered loans
Acquired loans
Impaired(1)		50,031		3,339		383		—		50		3,866		—		360		58,029
Performing(1)		370,034		63,892		23,422		—		3,878		63,611		—		16,953		541,790
Total non-covered acquired loans		420,065		67,231		23,805		—		3,928		67,477		—		17,313		599,819
Other non-covered loans (Legacy loans)		2,600,006		2,467,381		272,370		5,114		338,189		1,025,216		50,823		231,884		6,990,983
Total non-covered loans		3,020,071		2,534,612		296,175		5,114		342,117		1,092,693		50,823		249,197		7,590,802
Total	$	3,587,692	$	2,621,644	$	473,503	$	5,114	$	342,117	$	1,261,171	$	51,642	$	252,092	$	8,594,975

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(In thousands)	Commercial				Mortgage				Consumer and Other
December 31, 2012	Real Estate		Business		1-4 Family		Construction		Indirect		Home Equity		Credit Card		Other		Total
Covered loans
Impaired(1)	$	167,742	$	2,757	$	20,232	$	—	$	—	$	22,094	$	—	$	820	$	213,645
Performing(1)		473,101		84,294		166,932		—		—		152,117		906		1,761		879,111
Total covered loans		640,843		87,051		187,164		—		—		174,211		906		2,581		1,092,756
Non-covered loans
Acquired loans
Impaired(1)		55,363		3,470		330		—		68		4,649		—		318		64,198
Performing(1)		390,017		79,763		32,427		—		4,951		71,626		—		15,337		594,121
Total non-covered acquired loans		445,380		83,233		32,757		—		5,019		76,275		—		15,655		658,319
Other non-covered loans (Legacy loans)		2,545,320		2,367,434		251,262		6,021		322,966		1,000,638		51,722		202,142		6,747,505
Total non-covered loans		2,990,700		2,450,667		284,019		6,021		327,985		1,076,913		51,722		217,797		7,405,824
Total	$	3,631,543	$	2,537,718	$	471,183	$	6,021	$	327,985	$	1,251,125	$	52,628	$	220,377	$	8,498,580

⁽¹⁾  Loans in these categories were acquired with evidence of credit deterioration since origination. Accordingly, assumed credit losses at the purchase date were included in the balance acquired.

The Company’s loan to deposit ratio at March 31, 2013 and December 31, 2012 was 80.4% and 79.1%, respectively. The percentage of fixed rate loans to total loans decreased from 50.7% at the end of 2012 to 50.5% as of March 31, 2013. The table below sets forth the composition of the Company’s loan portfolio as of the dates indicated, with a discussion of activity by major loan types following.

TABLE 3 – TOTAL LOANS BY LOAN TYPE

(Dollars in thousands)	March 31, 2013				December 31, 2012
Commercial loans:
Real estate	$	3,587,692	42	%	$	3,631,543	43	%
Business		2,621,644	30			2,537,718	30
Total commercial loans		6,209,336	72			6,169,261	73
Mortgage loans:
Residential 1-4 family		473,503	6			471,183	5
Construction/Owner - occupied		5,114	—			6,021	—
Total mortgage loans		478,617	6			477,204	5
Loans to individuals:
Indirect automobile		342,117	4			327,985	4
Home equity		1,261,171	15			1,251,125	15
Other		303,734	3			273,005	3
Total consumer loans		1,907,022	22			1,852,115	22
Total loans receivable	$	8,594,975	100	%	$	8,498,580	100	%

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Commercial Loans

Commercial real estate and commercial business loans generally have shorter repayment periods and more frequent repricing opportunities than consumer and mortgage loans. Total commercial loans increased $40.1 million, or 0.6%, during the first quarter of 2013, with $113.3 million in non-covered loan growth and a decrease in covered commercial loans of $73.2 million, or 10.1%. The Company continued to attract and retain commercial customers in 2013 as commercial loans were 72% of the total loan portfolio at March 31, 2013. Unfunded commitments on commercial loans were $2.0 billion at March 31, 2013, an increase of $220.9 million when compared to the prior year.

The Company’s investment in commercial real estate loans decreased by $43.9 million thus far in 2013, as growth was tempered by a decrease in covered commercial real estate loans of $73.2 million. At March 31, 2013, commercial real estate loans totaled $3.6 billion, or 41.7% of the total loan portfolio, compared to 42.7% at December 31, 2012. The Company’s underwriting standards generally provide for loan terms of three to five years, with amortization schedules of generally no more than twenty years. Low loan-to-value ratios are maintained and usually limited to no more than 80% at the time of origination. In addition, the Company obtains personal guarantees of the principals as additional security for most commercial real estate loans.

As of March 31, 2013, the Company’s commercial business loans totaled $2.6 billion, or 30.5% of the Company’s total loan portfolio. This represents an $83.9 million, or 3.3%, increase from December 31, 2012, and is the result of the Company’s focused efforts to grow its small business loan portfolio. The Company originates commercial business loans on a secured and, to a lesser extent, unsecured basis. The Company’s commercial business loans may be term loans or revolving lines of credit. Term loans are generally structured with terms of no more than three to five years, with amortization schedules of generally no more than seven years. The Company’s commercial business term loans are generally secured by equipment, machinery or other corporate assets. The Company also provides for revolving lines of credit generally structured as advances upon perfected security interests in accounts receivable and inventory. Revolving lines of credit generally have an annual maturity. The Company obtains personal guarantees of the principals as additional security for most commercial business loans.

Non-covered commercial loans increased $113.3 million, or 2.1%, during the first quarter of 2013. The Lafayette, Louisiana, Birmingham, Alabama, and Houston, Texas markets experienced the largest growth in their commercial loan portfolios, but that growth was partially offset by a decrease in balances in some of the Company’s other markets, the result primarily of payments on existing loans. On a market basis, growth in the non-covered portfolio was driven by the Company’s Houston, Texas market, which grew its commercial loan portfolio $85.3 million, or 9.9%, since the end of 2012. Birmingham, Alabama’s commercial loans grew $9.1 million, or 2.9%, while the Huntsville, Alabama market contributed loan growth of $10.7 million since December 31, 2012. In the Company’s more mature markets, Lafayette, Louisiana’s commercial loans grew $20.6 million, or 3.0%, during the first quarter of 2013. Offsetting these increases were decreases in the Northeast Arkansas and Memphis, Tennessee markets, due primarily to loan payments.

Mortgage Loans

Residential 1-4 family loans comprise most of the Company’s mortgage loans. The vast majority of the Company’s residential 1-4 family mortgage loan portfolio is secured by properties located in its market areas and originated under terms and documentation which permit their sale in the secondary market. Larger mortgage loans of private banking clients and prospects are generally retained to enhance relationships, and also due to the expected shorter durations and relatively lower servicing costs associated with loans of this size. The Company does not originate or hold high loan to value, negative amortization, option ARM, or other exotic mortgage loans in its portfolio. Beginning in the third quarter of 2012, the Company began to invest in loans that would be considered subprime (e.g. loans with a FICO score of less than 620) in order to ensure compliance with relevant regulations. The Company expects to continue to invest in subprime loans through additional secondary market purchases, as well as direct originations, throughout 2013, albeit up to a limited amount. The total amount of subprime loans purchased or originated in the first three months of 2013 was $21.9 million, of which $10.1 million is either directly or indirectly guaranteed by a United States Government Agency. At March 31, 2013, the Company had $88.8 million in subprime mortgage loans.

The Company continues to sell the majority of conforming mortgage loan originations in the secondary market on a servicing-released basis and recognize the associated fee income rather than assume the interest rate risk associated with these longer term assets. The Company retains servicing on a limited portion of these loans upon sale. Total residential mortgage loans increased $1.4 million, or 0.3%, compared to December 31, 2012, and was a result of the subprime loans the Company purchased from the secondary market during the past quarter. Offsetting these purchases were decreases in the Company’s covered mortgage loans of $9.8 million and $9.0 million in acquired mortgage loans as existing loans were paid down and most of the new mortgage loan originations were sold.

Consumer and Credit Card Loans

The Company offers consumer loans in order to provide a full range of retail financial services to its customers. The Company originates substantially all of such loans in its primary market areas. At March 31, 2013, $1.9 billion, or 22.2%, of the Company’s total loan portfolio was comprised of consumer loans, compared to $1.9 billion, or 21.8%, at the end of 2012. The $54.9 million increase in total consumer loans compared to December 31, 2012 was primarily driven by personal loan growth (including credit cards) of $30.7 million and indirect automobile loan growth of $14.1 million.

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Consistent with 2012, home equity loans comprised the largest component of the Company’s consumer loan portfolio at March 31, 2013. The balance of home equity loans increased $10.0 million during the first three months of 2013 to $1.3 billion at March 31, 2013. Non-covered home equity loans increased $15.8 million during the first quarter of 2013, a result of the Company’s continued focus on expanding its total consumer portfolio through its additional investment in its consumer business, as well as increased activity from its existing clients. The Company’s sales and marketing efforts in 2013 have contributed to the growth in non-covered home equity loans since December 31, 2012. Unfunded commitments related to home equity loans and lines were $358.6 million at March 31, 2013, an increase of $17.4 million versus the prior year. The Company has approximately $396.1 million of loans with junior liens where the Company does not hold or service the respective loan holding senior lien. The Company believes it has addressed the risks associated with these loans in its allowance for credit losses, which is discussed below.

Indirect automobile loans comprised the second largest component of the Company’s consumer loan portfolio. Independent automobile dealerships originate these loans based upon the Company’s credit decisioning. The Company relies on the dealerships, in part, for loan qualifying information. To that extent, there is risk inherent in indirect automobile loans associated with fraud or negligence by the automobile dealership. To limit this risk, an emphasis is placed on established dealerships that have demonstrated reputable behavior, both within the communities we serve and through long-term relationships with the Company. The balance of indirect automobile loans increased 4.3% during the current quarter, from $328.0 million at December 31, 2012 to $342.1 million at March 31, 2013, as the Company retained its focus on prime or low risk paper. The indirect portfolio increased to 4.0% of the total loan portfolio. The organic growth in the Company’s indirect automobile portfolio can be attributed to a couple of primary factors. In 2012, the Company began to sign new dealers after limiting new business during the previous years due to a weakened economy. In addition, the Company has adjusted its interest rates on these loans to be more aligned with its competitors, which has provided the Company an opportunity to recapture some market share.

The Company’s credit card loans totaled $51.6 million at March 31, 2013, a 1.9% decrease from December 31, 2012. The decrease in credit card loans was a result of a slight decrease in usage by customers at the end of the first quarter, as quarter-to-date average credit card balances have increased from $50.1 million in the fourth quarter of 2012 to $51.5 million in the first quarter of 2013.

The remainder of the consumer loan portfolio at March 31, 2013 was composed of direct automobile loans and other personal loans, and comprised 2.9% of the overall loan portfolio. At the end of the first quarter, the Company’s direct automobile loans totaled $66.2 million, a $6.0 million increase over December 31, 2012, and the Company’s other personal consumer loans were $185.9 million, a 16.1% increase from December 31, 2012, primarily a result of installment loans and personal lines of credit.

Mortgage Loans Held for Sale

Loans held for sale decreased $79.4 million, or 29.7%, to $188.0 million at March 31, 2013 compared to $267.5 million at December 31, 2012. The decrease in the balance during 2013 was a result of an increase in sales activity during the first quarter and a seasonal slowdown of origination and refinance activity. The Company has originated $536.7 million in mortgage loans thus far in 2013, but those originations were offset by the sale of $616.1 million in mortgage loans during the first quarter.

Loans held for sale have primarily been fixed-rate single-family residential mortgage loans under contracts to be sold in the secondary market. In most cases, loans in this category are sold within thirty days of closing. Buyers generally have recourse to return a purchased loan to the Company under limited circumstances. Recourse conditions may include fraud in the origination, breach of representations or warranties, and documentation deficiencies. At March 31, 2013, the Company had $5.2 million in loans that have recourse conditions for which buyers have notified the Company of potential recourse action. The Company has recorded a reserve of $2.5 million for potential repurchases at March 31, 2013. Thus far in 2013, an insignificant number of loans were returned to the Company.

Asset Quality

The Company’s loan portfolio has gradually transitioned from that of a thrift to resemble portfolios held by commercial banks. This transition brings the potential for increased risks in the form of potentially higher levels of charge-offs and nonperforming assets, and increase rewards in the form of potentially increased levels of shareholder returns. Management has responded, as the risks present within the Company’s loan portfolio have evolved by tightening underwriting guidelines and procedures, implementing more conservative loan charge-off and nonaccrual guidelines, revising loan policies and developing an internal loan review function. As a result of management’s enhancements to underwriting loan risk/return dynamics, the credit quality of the Company’s loan portfolio has remained favorable when compared to peers. Management believes that it has demonstrated proficiency in managing credit risk through timely identification of significant problem loans, prompt corrective action, and transparent disclosure. Overall asset quality improved during the first three months of 2013, primarily as a result of decreases in the number and amount of past due loans and nonperforming assets. Consistent with prior years, the assets and liabilities purchased and assumed through the Company’s four failed bank acquisitions continue to have a disproportionate impact on overall asset quality. The Company continues to closely monitor the risk-adjusted level of return within the loan portfolio.

Written underwriting standards established by the Board of Directors and management govern the lending activities of the Company. The commercial credit department, in conjunction with senior lending personnel, underwrites all commercial business and commercial

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real estate loans. The Company provides centralized underwriting of all residential mortgage, construction and consumer loans. Established loan origination procedures require appropriate documentation, including financial data and credit reports. For loans secured by real property, the Company generally requires property appraisals, title insurance or a title opinion, hazard insurance, and flood insurance, where appropriate.

Loan payment performance is monitored and late charges are assessed on past due accounts. A centralized department administers delinquent loans. Every effort is made to minimize any potential loss, including instituting legal proceedings as necessary. Commercial loans of the Company are periodically reviewed through a loan review process to provide an independent assessment of a loan’s risks. All other loans are also subject to loan review through a periodic sampling process. The Company exercises significant judgment in determining the risk classification of its commercial loans.

The Company utilizes an asset risk classification system in accordance with guidelines established by the Federal Reserve Board as part of its efforts to monitor commercial asset quality. In connection with examinations of insured institutions, both federal and state examiners also have the authority to identify problem assets and, if appropriate, classify them. There are three classifications for problem assets: “substandard,” “doubtful” and “loss”, all of which are considered adverse classifications. Substandard assets have one or more defined weaknesses and are characterized by the distinct possibility that the Company will sustain some loss if the deficiencies are not corrected. Doubtful assets have the weaknesses of substandard assets with the additional characteristic that the weaknesses make collection or liquidation in full questionable, and there is a high probability of loss based on currently existing facts, conditions and values. An asset classified as loss is considered not collectable and of such little value that continuance as an asset of the Company is not warranted. Commercial loans with adverse classifications are reviewed by the Board Risk Committee of the Board of Directors at least monthly. Loans are placed on nonaccrual status when they are 90 days or more past due unless, in the judgment of management, the probability of timely collection of interest is deemed to be sufficient to warrant further accrual. When a loan is placed on nonaccrual status, the accrual of interest income ceases and accrued but unpaid interest attributable to the current year is reversed against interest income. Accrued interest receivable attributable to the prior year is recorded as a charge-off to the allowance for credit losses.

Real estate acquired by the Company through foreclosure or by deed-in-lieu of foreclosure is classified as other real estate owned (“OREO”), and is recorded at the lesser of the related loan balance (the pro-rata carrying value for acquired loans) or estimated fair value less estimated costs to sell.

Under generally accepted accounting principles, certain loan modifications or restructurings are designated as troubled debt restructurings (“TDRs”). In general, the modification or restructuring of a debt constitutes a TDR if the Company, for economic or legal reasons related to the borrower’s financial difficulties, grants a concession to the borrower that the Company would not otherwise consider under current market conditions.

Nonperforming Assets

The Company defines nonperforming assets as nonaccrual loans, accruing loans more than 90 days past due, OREO and foreclosed property. Management continually monitors loans and transfers loans to nonaccrual status when warranted.

Loans acquired through failed bank acquisitions, referred to as covered loans, are covered by loss sharing agreements with the FDIC, whereby the FDIC reimburses the Company for the majority of the losses incurred during the loss share claim period. Acquisition date fair values of loans covered by loss sharing agreements were determined without regard to the loss sharing agreements. In addition to covered loans, the Company also accounts for other loans acquired with deteriorated credit quality, as well as all loans acquired with significant discounts that did not exhibit deteriorated credit quality at acquisition, in accordance with ASC 310-30. Collectively, all loans accounted for under ASC 310-30 are referred to as purchased impaired loans. Application of ASC 310-30 results in significant accounting differences, compared to loans originated or acquired by the Company that are not accounted for under ASC 310-30. At acquisition, purchased impaired loans were individually evaluated and assigned to loan pools based on common risk characteristics, which included loan performance at the time of acquisition, loan type based on regulatory reporting guidelines, and/or the nature of collateral. The acquisition date fair values of each pool were estimated based on the expected cash flows of the underlying loans. Certain loan level information, including outstanding principal balance, maturity, term to re-price (if a variable rate loan), and interest rate were used to estimate the expected cash flows for each loan pool. ASC 310-30 does not permit carry over or recognition of an allowance for credit losses at acquisition. Credit quality deterioration, also referred to as credit losses, evident at acquisition with individual loans was reflected in the acquisition date fair value through the reduction of cash flows expected to be received over the life of loans. A provision for credit losses is recognized and an allowance for credit losses is recorded subsequent to acquisition to the event that re-estimated expected losses exceed losses estimated at acquisition. Purchased impaired loans were considered to be performing as of the acquisition date regardless of their past due status based on their contractual terms. In accordance with regulatory reporting guidelines, purchased impaired loans that are contractually past due are reported as past due and accruing based on the number of days past due.

Due to the significant difference in the accounting for covered loans and the related FDIC loss sharing agreements, as well as non-covered acquired loans accounted for as purchased impaired loans, and given the significant amount of acquired impaired loans that are past due but still accruing, the Company believes inclusion of these loans in certain asset quality ratios that reflect nonperforming assets in the numerator or denominator (or both) results in significant distortion to these ratios. In addition, because loan level charge-offs

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related to purchased impaired loans are not recognized in the financial statements until the cumulative amounts exceed the original loss projections on a pool basis, the net charge-off ratio for acquired loans is not consistent with the net charge-off ratio for other loan portfolios. The inclusion of these loans in certain asset quality ratios could result in a lack of comparability across quarters or years, and could impact comparability with other portfolios that were not impacted by purchased impaired loan accounting. The Company believes that the presentation of certain asset quality measures excluding either covered loans or all purchased impaired loans, as indicated below, and related amounts from both the numerator and denominator provides better perspective into underlying trends related to the quality of its loan portfolio. Accordingly, the asset quality measures in the tables below present asset quality information excluding either covered loans or all purchased impaired loans, as indicated within each table, and related amounts.

Nonperforming assets excluding acquired loans decreased $0.6 million, or 0.8%, as compared to December 31, 2012. The decrease resulted from a $0.8 million decrease in nonperforming loans, attributable to a decrease in nonaccrual loans, which was partially offset by an increase in accruing loans past due 90 days or more and a $0.1 million increase in OREO.

The following table sets forth the composition of the Company’s non-covered nonperforming assets, including accruing loans past due 90 or more days and TDRs, as of March 31, 2013 and December 31, 2012.

TABLE 4 – NONPERFORMING ASSETS AND TROUBLED DEBT RESTRUCTURINGS

(EXCLUDING ACQUIRED LOANS)

(Dollars in thousands)	March 31, 2013			December 31, 2012			Increase/ (Decrease)
Nonaccrual loans:
Commercial and business banking	$	29,864		$	32,312		$	(2,448	)	(7.6	)%
Mortgage		8,159			8,367			(208	)	(2.5	)
Consumer and credit card		8,542			7,237			1,305		18.0
Total nonaccrual loans		46,565			47,916			(1,351	)	(2.8	)
Accruing loans 90 days or more past due		1,950			1,371			579		42.2
Total nonperforming loans(1)		48,515			49,287			(772	)	(1.6	)
OREO and foreclosed property(2)		26,515			26,380			135		0.5
Total nonperforming assets(1)		75,030			75,667			(637	)	(0.8	)
Troubled debt restructurings in compliance with modified terms(3)		2,123			2,354			(231	)	(9.8	)
Total nonperforming assets and troubled debt restructurings(1)	$	77,153		$	78,021		$	(868	)	(1.1	)%
Nonperforming loans to total loans(1)(4)		0.69	%		0.73	%
Nonperforming assets to total assets(1)(4)		0.68	%		0.69	%
Nonperforming assets and troubled debt restructurings to total assets(1)(4)		0.70	%		0.71	%
Allowance for credit losses to nonperforming loans(4)(5)		144.09	%		150.57	%
Allowance for credit losses to total loans(4)(5)		0.99	%		1.10	%

⁽¹⁾  Nonperforming loans and assets include accruing loans 90 days or more past due.

⁽²⁾  OREO and foreclosed property at March 31, 2013 and December 31, 2012 include $9,199,000 of former bank properties held for development or resale.

⁽³⁾  Troubled debt restructurings in compliance with modified terms for March 31, 2013 and December 31, 2012 above do not include $16,178,000 and $15,356,000 in troubled debt restructurings included in total nonaccrual loans above.

⁽⁴⁾ Total loans and total assets exclude loans and assets covered by FDIC loss share agreements and acquired loans discussed below.

⁽⁵⁾  The allowance for credit losses excludes the portion of the allowance related to covered loans and acquired non-covered loans discussed below.

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Nonperforming loans were 0.69% of total legacy loans at March 31, 2013, four basis points lower than at December 31, 2012. If covered loans and acquired loans accounted for in pools that meet nonperforming criteria are included, nonperforming loans were 5.45% of total loans at March 31, 2013 and 6.42% at December 31, 2012. The allowance for credit losses as a percentage of nonperforming loans was 144.1% at March 31, 2013 and 150.6% at December 31, 2012. Including covered loans and pooled loans, the allowance coverage of total loans was 2.21% at March 31, 2013 and 2.96% at December 31, 2012.

Nonperforming asset balances as a percentage of total assets have remained at relatively low levels. Total nonperforming assets were 0.68% of non-covered assets at March 31, 2013, one basis point below December 31, 2012. Consistent with the improvement in asset quality, the Company’s reserve for credit losses as a percentage of loans excluding reserves for acquired loans decreased 11 basis points to 0.99% at March 31, 2013.

Loans defined as TDRs not included in nonperforming assets decreased to $2.1 million at the end of the first quarter of 2013. Total TDRs not covered by loss share agreements totaled $18.5 million at March 31, 2013, $0.8 million, or 4.5%, higher than December 31, 2012. One credit totaling $1.5 million was added as TDRs thus far in 2013, but this addition was offset by loan payments and charge-offs during the first three months of the current year.

The Company had gross charge-offs on non-covered loans of $2.1 million during the three months ended March 31, 2013. Offsetting these charge-offs were recoveries of $0.9 million. As a result, net charge-offs on non-covered loans during the first quarter of 2013 were $1.2 million, or 0.06% of average loans, as compared to net charge-offs of $1.5 million, or 0.10%, in the first quarter of 2012.

At March 31, 2013, excluding loans covered by the FDIC loss share agreements, the Company had $207.8 million of assets classified as substandard, $5.8 million of assets classified as doubtful, and no assets classified as loss (before the application of loan discounts to acquired loans). At such date, the aggregate of the Company’s classified assets was 1.65% of total assets, 2.49% of total loans, and 2.81% of non-covered loans. At December 31, 2012, the aggregate of the Company’s classified assets, $231.6 million, was 1.98% of total assets, 2.72% of total loans, and 3.13% of non-covered loans. The decrease in classified assets is consistent with the overall improvement in asset quality since December 31, 2012. A reserve for credit losses has been recorded for all substandard loans at March 31, 2013 according to the Company’s allowance policy. Excluding purchased impaired loans, the Company’s classified assets totaled $161.8 million, compared to $176.0 million at December 31, 2012.

In addition to the problem loans described above, excluding covered loans, there were $111.0 million of loans classified special mention at March 31, 2013, which in management’s opinion were subject to potential future rating downgrades. Special mention loans are defined as loans where known information about possible credit problems of the borrowers cause management to have some doubt as to the ability of these borrowers to comply with the present loan repayment terms and which may result in future disclosure of these loans as nonperforming. Special mention loans decreased $11.1 million, or 9.1%, from December 31, 2012, which is consistent with the general improvement in the Company’s asset quality.

Past Due Loans

Past due status is based on the contractual terms of loans. The majority of the Company’s non-covered portfolio exhibited an improvement in past due status from the end of the previous year.

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At March 31, 2013, total past due loans excluding covered loans were 1.56% of total loans, a decrease of 15 basis points from December 31, 2012. Including covered loans, loans past due 30 days or more were 5.68% of total loans before discount adjustments at March 31, 2013 and 6.76% at December 31, 2012. Past due non-covered loans (including nonaccrual loans) decreased $8.5 million, or 6.7%, from December 31, 2012, and can be attributed to improvements in loans past due less than 60 days. Additional information on the Company’s non-covered past due loans is presented in the following table.

TABLE 5 – PAST DUE NON-COVERED LOAN SEGREGATION

(Dollars in thousands)	March 31, 2013
	Non-acquired					Acquired					Total
	Amount		% of Outstanding Balance			Amount		% of Outstanding Balance			Amount		% of Outstanding Balance
Accruing loans
30-59 days past due	$	5,160		0.07	%	$	7,893		1.16	%	$	13,053		0.17	%
60-89 days past due		3,348		0.05			3,519		0.52			6,867		0.09
90-119 days past due		605		0.01			846		0.12			1,451		0.02
120 days past due or more		1,344		0.02			673		0.10			2,017		0.03
Total Accruing Loans		10,457		0.15			12,931		1.90			23,388		0.31
Nonaccrual loans(1)		46,565		0.66			49,369		7.26			95,934		1.25
Total past due loans	$	57,022		0.81	%	$	62,300		9.16	%	$	119,322		1.56	%

(Dollars in thousands)	December 31, 2012
	Non-acquired					Acquired					Total
	Amount		% of Outstanding Balance			Amount		% of Outstanding Balance			Amount		% of Outstanding Balance
Accruing loans
30-59 days past due	$	10,349		0.15	%	$	10,502		1.42	%	$	20,851		0.28	%
60-89 days past due		2,447		0.04			2,499		0.34			4,946		0.07
90-119 days past due		489		0.01			82		0.01			571		0.01
120 days past due or more		882		0.01			323		0.04			1,205		0.02
Total Accruing Loans		14,167		0.21			13,406		1.81			27,573		0.37
Nonaccrual loans(1)		47,917		0.71			52,376		7.06			100,293		1.34
Total past due loans	$	62,084		0.92	%	$	65,782		8.87	%	$	127,866		1.71	%

⁽¹⁾ For acquired loans, balance represents the outstanding balance of loans that would otherwise meet the Company’s definition of nonaccrual loans.

The $8.5 million decrease in non-covered past due loans was the result of a $4.2 million decrease in accruing loans past due and a $4.4 million decrease in nonaccrual loans. Commercial nonaccrual loans decreased $5.9 million, or 7.5%, and mortgage nonaccrual loans increased $0.2 million, while consumer nonaccrual loans increased $1.8 million, or 14.4%, since December 31, 2012. The increase in consumer nonaccrual loans was a result of the placement of past due consumer loans on nonaccrual status during 2013 in response to their continued past due status. The movement of these loans to nonaccrual status in the current quarter helped to drive the decrease in accruing consumer loans past due from December 31, 2012, from $9.2 million to $6.3 million, a 31.5% decrease.

In the Company’s non-covered commercial loan portfolio, total accruing loans past due decreased $2.4 million, or 15.2%, from December 31, 2012. The majority of the decrease was from loans past due less than 90 days, as total commercial loans less than 90 days past due decreased $3.0 million, or 19.8%. Offsetting that decrease was a slight increase in accruing loans past due more than 90 days of $0.6 million.

Total non-covered mortgage loans past due increased $1.1 million during the first three months of 2013. Although asset quality has declined in the mortgage portfolio, 66.0% of the past due loans were past due less than 90 days, including 23.6% past due less than 60 days. At December 31, 2012, those percentages were 69.4% and 25.3%, respectively. Management is continually monitoring the past due status of these mortgage loans for indicators of overall asset quality issues.

Covered Loans

The loans and foreclosed real estate that were acquired in the CSB, Orion, Century, and Sterling acquisitions in 2009 and 2010 are covered by loss share agreements between the FDIC and IBERIABANK, which afford IBERIABANK significant loss protection. As a result of the loss protection provided by the FDIC, the risk of loss on the acquired loans and foreclosed real estate is significantly different from those assets not covered under the loss share agreements.

As described above, covered assets were recorded at their acquisition date fair values.

Although covered loans are not included in the Company’s nonperforming assets, in accordance with bank regulatory reporting standards, both acquired loans considered impaired at the time of acquisition and those performing at the time of acquisition that meet the Company’s definition of a nonperforming loan at each balance sheet date are discussed below. Included in the discussion are all covered loans that are contractually past due based on the number of days past due. Certain measures of the asset quality of covered

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loans are discussed below. Loan balances are reported before consideration of applied loan discounts, as these discounts were recorded based on the estimated cash flow of the total loan pool and not on a specific loan basis. The loss share agreements with the FDIC limit the Company’s exposure to loss during the loss claim period to no more than 20% of incurred losses for all covered loans and as little as 5% of incurred losses for certain loans. Therefore, balances discussed below are for general comparative purposes only and do not represent the Company’s risk of loss on covered assets.

TABLE 6 – PAST DUE COVERED LOAN SEGREGATION

(Dollars in thousands)	March 31, 2013					December 31, 2012
	Amount		% of Outstanding Balance			Amount		% of Outstanding Balance
Accruing loans
30-59 days past due	$	10,085		0.87	%	$	14,799		1.16	%
60-89 days past due		3,223		0.28			7,303		0.57
90-119 days past due		851		0.07			2,376		0.18
120 days past due or more		1,377		0.12			252		0.02
Total Accruing Loans		15,536		1.34			24,730		1.93
Nonaccrual loans(1)		367,141		31.55			440,575		34.40
Total past due loans	$	382,677		32.89	%	$	465,305		36.33	%

⁽¹⁾ For covered loans, balance represents the outstanding balance of loans that would otherwise meet the Company’s definition of nonaccrual loans.

Total covered loans past due at March 31, 2013 totaled $382.7 million before discounts, a decrease of $82.6 million, or 17.8%, from December 31, 2012. The decrease is consistent with not only the overall decrease in the covered loan portfolio, but also with the steady improvement in asset quality in the covered loan portfolio over time. Past due loans at the end of the first quarter of 2013 included $367.1 million in loans that would otherwise meet the Company’s definition of nonaccrual loans and $15.5 million in accruing loans past due greater than 30 days. Of the $15.5 million in accruing loans past due, $13.3 million, or 85.7%, were past due less than 90 days. The indemnification agreements on covered assets include a provision for recapture of a portion of interest if the interest is included in total losses on the covered asset.

Of the $82.6 million decrease in covered loans past due, loans past due 30 to 89 days decreased $8.8 million, or 39.8%, while nonperforming loans (defined as accruing loans greater than 90 days past due and loans that meet the definition of nonaccrual loans) decreased $73.8 million, or 16.7%. These decreases were a result primarily of payments on the loan balances during the current year.

Allowance for Credit Losses

The allowance for credit losses represents management’s best estimate of probable credit losses inherent at the balance sheet date. Determination of the allowance for credit losses involves a high degree of complexity and requires significant judgment. Several factors are taken into consideration in the determination of the overall allowance for credit losses, including a qualitative component. These factors include, but are not limited to, the overall risk profiles of the loan portfolios, net charge-off experience, the extent of impaired loans, the level of nonaccrual loans, the level of 90 days past due loans and the overall percentage level of the allowance. The Company also considers overall asset quality trends, changes in lending and risk management practices and procedures, trends in the nature and volume of the loan portfolio, including the existence and effect of any portfolio concentrations, changes in experience and depth of lending staff, legal, regulatory and competitive environment, national and regional economic trends, and data availability and applicability that might impact the portfolio. See the “Application of Critical Account Policies and Estimates” section of the Company’s Form 10-K filing for the year ended December 31, 2012 for more information.

During 2013, the Company did not substantively change any material aspect of its overall approach in the determination of the allowance for credit losses and there have been no material changes in assumptions or estimation techniques as compared to prior periods that impacted the determination of the current period allowance.

Certain inherent, but unconfirmed losses are probable within the loan portfolio. The Company’s current methodology for determining the level of losses is based on historical loss rates, current credit grades, specific allocation and other qualitative adjustments. In a stable or deteriorating credit environment, heavy reliance on historical loss rates and the credit grade rating process, results in model-derived required reserves that tend to slightly lag behind portfolio deterioration. Similar lags can occur in an improving credit environment whereby required reserves can lag slightly behind portfolio improvement. Given these model limitations, qualitative adjustment factors may be incremental or decremental to the quantitative model results.

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The manner in which the allowance for credit losses is determined is based on the accounting method applied to the underlying loans. The Company delineates between loans accounted for under the contractual yield method, primarily legacy loans, and loans accounted for as purchased impaired loans, primarily acquired loans.

Legacy Loans

Legacy loans represent loans accounted for under the contractual yield method. The Company’s legacy loans include loans originated by the Company and acquired loans that are not accounted for as acquired credit impaired loans. See the “Application of Critical Account Policies and Estimates” section of the Company’s Annual Report on Form 10-K filed with the SEC for the year ended December 31, 2012 for more information.

Acquired Loans

Acquired loans, which include covered loans and certain non-covered loans, represent loans acquired by the Company that are accounted for in accordance with ASC 310-30. See discussion above, as well as the “Application of Critical Account Policies and Estimates” section of the Company’s Annual Report on Form 10-K filed with the SEC for the year ended December 31, 2012 for more information.

Loans acquired in business combinations were recorded at their acquisition date fair values, which were based on expected cash flows and included estimates of expected future credit losses. Under current accounting principles, information regarding the Company’s estimates of loan fair values may be adjusted for a period of up to one year as the Company continues to refine its estimate of expected future cash flows in the acquired portfolio. Within a one-year period, if the Company discovers that it has materially underestimated the credit losses expected in the loan portfolio based on information available at the acquisition date, it will retroactively reduce or eliminate the gain and/or increase goodwill recorded on the acquisition. If the Company determines that losses arose after the acquisition date, the additional losses will be reflected as a provision for credit losses.

At March 31, 2013, the Company had an allowance for credit losses of $111.8 million to reserve for probable losses currently in the covered loan portfolio arising after the losses estimated at the respective acquisition dates. Based on facts and circumstances available, management of the Company believes that the allowance for credit losses was appropriate at March 31, 2013 to cover probable losses in the Company’s loan portfolio. However, future adjustments to the allowance may be necessary, and the Company’s results of operations could be adversely affected, if circumstances differ substantially from the assumptions used by management in determining the allowance for credit losses.

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The following tables set forth the activity in the Company’s allowance for credit losses for the periods indicated.

TABLE 7 – SUMMARY OF ACTIVITY IN THE ALLOWANCE FOR CREDIT LOSSES

	For the Three Months Ended March 31,
(Dollars in thousands)	2013			2012
Balance, beginning of period	$	251,603		$	193,761
Transfer of balance to OREO		(11,877	)		(5,363	)
(Reversal of) Provision charged to operations		(3,377	)		2,857
(Reversal of) Provision recorded through the FDIC loss share receivable		(45,414	)		684
Charge-offs:
Commercial and business banking		639			13,961
Mortgage		241			294
Consumer		1,223			1,282
Total charge-offs		2,103			15,537
Recoveries:
Commercial and business banking		244			173
Mortgage		31			10
Consumer		618			607
Total recoveries		893			790
Net charge-offs		1,210			14,747
Balance, end of period	$	189,725		$	177,192
Allowance for credit losses to nonperforming assets(1)(2)		117.7	%		103.3	%
Allowance for credit losses to total loans at end of period(2)		1.03	%		1.33	%
Net charge-offs to average loans(3)		0.06	%		0.10	%

⁽¹⁾ Nonperforming assets include accruing loans 90 days or more past due.

⁽²⁾ The allowance for credit losses in the calculation does not include the allowance allocated to covered assets.

⁽³⁾ Net charge-offs exclude charge-offs and recoveries on covered loans.

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TABLE 8 – SUMMARY OF ACTIVITY BY LOAN TYPE

(In thousands)	March 31, 2013
				Non-covered loans
	Covered Loans			Legacy Loans			Acquired Loans			Total
Balance, beginning of period	$	168,576		$	74,211		$	8,816		$	251,603
(Reversal of) Provision for credit losses before benefit attributable to FDIC loss share agreements		(45,385	)		(4,002	)		596			(48,791	)
Benefit attributable to FDIC loss share agreements		45,414			—			—			45,414
Net (reversal of) provision for credit losses		29			(4,002	)		596			(3,377	)
Decrease in FDIC loss share receivable		(45,414	)		—			—			(45,414	)
Transfer of balance to OREO		(11,318	)		—			(559	)		(11,877	)
Loan charge-offs		(41	)		(2,062	)		—			(2,103	)
Recoveries		—			893			—			893
Balance, end of period	$	111,832		$	69,040		$	8,853		$	189,725

(In thousands)	March 31, 2012
				Non-covered loans
	Covered Loans			Legacy Loans			Acquired Loans			Total
Balance, beginning of period	$	118,900		$	74,861			—		$	193,761
Provision for credit losses before benefit attributable to FDIC loss share agreements		1,431			1,004			1,106			3,541
Benefit attributable to FDIC loss share agreements		(684	)		—			—			(684	)
Net provision for credit losses		747			1,004			1,106			2,857
Increase in FDIC loss share receivable		684			—			—			684
Transfer of balance to OREO		(5,357	)		—			(6	)		(5,363	)
Loan charge-offs		(13,266	)		(2,110	)		(161	)		(15,537	)
Recoveries		17			771			2			790
Balance, end of period	$	101,725		$	74,526			941		$	177,192

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The allowance for credit losses was $189.7 million at March 31, 2013, or 2.21% of total loans, $61.9 million lower than at December 31, 2012. The allowance as a percentage of loans was 75 basis points below the 2.96% at December 31, 2012.

The decrease in the allowance was primarily related to a decrease in reserves on the covered and non-acquired loan portfolios. The allowance for credit losses on the non-covered portion of the Company’s loan portfolio decreased primarily due to an improvement in overall asset quality from December 31, 2012 and slower loan growth during the first three months of 2013. Asset quality improved over the prior year as evidenced by continued lower levels of net charge-offs and past due loans. The non-covered allowance for credit losses also includes a reserve of $8.9 million on the Company’s non-covered acquired loans to reserve for losses probable in those portfolios at March 31, 2013 above estimated expected credit losses at acquisition.

The allowance for credit losses on covered loans decreased $56.7 million, or 33.7%, from December 31, 2012 and was primarily the result of a change in expected cash flows on certain of the Company’s acquired loan pools during the first three months of 2013. The reserve was adjusted during the year to cover the expected losses in these pools. On a gross basis, the Company was able to reverse $45.4 million in the current quarter to account for these estimated cash flow changes. The allowance on covered loans was also reduced by $11.3 million when loan collateral was moved to OREO during 2013.

At March 31, 2013, excluding the acquired loan portfolios, the allowance for credit losses covers nonperforming loans 1.2 times. On that same basis, the allowance for credit losses on non-covered loans covers total past due loans 1.5 times at December 31, 2012. Including acquired loans, the allowance for credit losses covers 65.3% of total past due and nonaccrual loans at March 31, 2013, an increase compared to the December 31, 2012 coverage of 64.9%.

FDIC Loss Share Receivable

As part of the FDIC-assisted acquisitions in 2009 and 2010, the Company recorded a $1.0 billion receivable from the FDIC, which represents the fair value of the expected reimbursable losses covered by the loss share agreements. The FDIC loss share receivable decreased $138.6 million, or 32.8%, during the first quarter of 2013 as the Company recorded a valuation allowance of $31.8 million, reduced the balance $45.4 million to offset the allowance for credit loss adjustment recorded during the first quarter of 2013, and claimed reimbursements from the FDIC resulting from loan charge-offs, OREO sales, and OREO write-downs, included in other assets discussed below. The loss share receivable also decreased as a result of amortization during the year. See Note 6 to the unaudited consolidated financial statements for additional information.

The following table sets forth the activity in the FDIC loss share receivable asset for the periods indicated.

TABLE 9 – FDIC LOSS SHARE RECEIVABLE ACTIVITY

(In thousands)	For the Three Months Ended March 31,
	2013			2012
Balance, beginning of period	$	423,069		$	591,844
Change due to (reversal of) credit loss provision recorded on FDIC covered loans		(45,414	)		684
Amortization		(27,702	)		(27,927	)
Submission of reimbursable losses to the FDIC		(30,491	)		(28,418	)
Impairment		(31,813	)		—
Changes due to a change in cash flow assumptions on OREO		(3,178	)		1,265
Balance, end of period	$	284,471		$	537,448

Based on improving economic trends, their impact on the amount and timing of expected future cash flows, and delays in the foreclosure process, the Company concluded that certain expected losses are probable of not being collected from neither the FDIC nor the customer because such projected losses are anticipated to occur beyond the reimbursable periods of the loss share agreements. On April 10, 2013, the Audit Committee and the Board of Directors concluded that an impairment charge was required under generally accepted accounting principles applicable to the Company and should be recognized in the Company’s unaudited consolidated financial statements for the three-month period ended March 31, 2013. Therefore, the Company recognized a valuation allowance against the indemnification assets in the amount of $31.8 million through a charge to net income.

Of the FDIC loss share receivables balance of $284.5 million, approximately $127 million is expected to be collected from the FDIC, $126 million, which represents improvements in cash flows expected to be collected from customers, is expected to be amortized over time, and $31 million is expected to be collected from other real estate owned (“OREO”). Substantially all of the $126 million to be amortized is expected to be offset by future collections from customers resulting from improved expected cash flows.

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The Company does not anticipate owing any consideration previously received under indemnification agreements to the FDIC under the “clawback” provisions of these agreements. Of the three agreements with the FDIC that contain clawback provisions, cumulative losses to date under two of these agreements have exceeded the calculated loss amounts which would result in clawback if not incurred. The sum of the historical and remaining projected losses under the remaining agreement is in excess of the clawback amount stated in that agreement. However, the future performance of the remaining covered assets (namely improvements in the forms of recoveries and/or reduced losses) for each of the three agreements beyond each agreement’s respective collection period could require the Company to be subject to the clawback provisions for that agreement. The clawback provisions generally stipulate that in the event of not meeting certain thresholds of loss, the Company is required to pay the FDIC a percentage as defined in the respective agreements.

Refer to the “Other Assets” discussion below for additional amounts due from the FDIC related to loss share agreements.

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Investment Securities

Investment securities increased by $199.9 million to $2.1 billion at March 31, 2013. The increase was due to the use of available funds in the first quarter of 2013 to purchase available for sale investments. These additional investments were offset partially by the sales and maturities of investment securities thus far in 2013. As a result of these purchases, as a percentage of total assets, investment securities increased to 16.6% of total assets at March 31, 2013, from 14.9% at December 31, 2012. Investment securities were 17.3% of average earnings assets in the current quarter and 19.0% in the first quarter of 2012.

The following table shows the carrying values of securities by category as of March 31, 2013 and December 31, 2012.

TABLE 10 – CARRYING VALUE OF SECURITIES

(In thousands)
	March 31, 2013				December 31, 2012
Securities available for sale:
U.S. Government-sponsored enterprise obligations	$	530,840	25	%	$	285,724	15	%
Obligations of state and political subdivisions		122,846	6			127,075	7
Mortgage backed securities		1,296,324	60			1,330,656	68
Other securities		1,538	—			1,549	—
Total securities available for sale		1,951,548	91			1,745,004	90
Securities held to maturity:
U.S. Government-sponsored enterprise obligations		69,951	3			69,949	4
Obligations of state and political subdivisions		85,723	4			88,909	4
Mortgage backed securities		42,768	2			46,204	2
Total securities held to maturity		198,442	9			205,062	10
Total investment securities	$	2,149,990	100	%	$	1,950,066	100	%

All of the Company’s mortgage-backed securities are agency securities. The Company does not hold any Fannie Mae or Freddie Mac preferred stock, corporate equity, collateralized debt obligations, collateralized loan obligations, or structured investment vehicles, nor does it hold any private label collateralized mortgage obligations, sub-prime, Alt-A, or second lien elements in its investment portfolio. At March 31, 2013, the Company’s investment portfolio did not contain any securities that are directly backed by subprime or Alt-A mortgages.

The following table summarizes activity in the Company’s investment securities portfolio during the first three months of 2013. There were no transfers of securities between investment categories during the year.

TABLE 11 – INVESTMENT PORTFOLIO ACTIVITY

(In thousands)	Available for Sale			Held to Maturity
Balance, beginning of period	$	1,745,004		$	205,062
Purchases		548,154			2,412
Sales, net of gains		(43,377	)		—
Principal maturities, prepayments and calls, net of gains		(288,650	)		(8,693	)
Amortization of premiums and accretion of discounts		(5,261	)		(339	)
Change in market value		(4,322	)		—
Other-than-temporary impairment		—			—
Balance, end of period	$	1,951,548		$	198,442

Funds generated as a result of sales and prepayments are used to fund loan growth and purchase other securities. The Company continues to monitor market conditions and take advantage of market opportunities with appropriate risk and return elements.

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The Company assesses the nature of the losses in its investment portfolio periodically to determine if there are losses that are deemed other-than-temporary. In its analysis of these securities, management considers numerous factors to determine whether there are instances where the amortized cost basis of the debt securities would not be fully recoverable, including, but not limited to:

• the length of time and extent to which the fair value of the securities was less than their amortized cost,

• whether adverse conditions were present in the operations, geographic area, or industry of the issuer,

• the payment structure of the security, including scheduled interest and principal payments, including the issuer’s failures to make scheduled payments, if any, and the likelihood of failure to make scheduled payments in the future,

• changes to the rating of the security by a rating agency, and

• subsequent recoveries or additional declines in fair value after the balance sheet date.

Management believes it has considered these factors, as well as all relevant information available, when determining the expected future cash flows of the securities in question. Based on its analysis, the Company recorded an other-than-temporary impairment charge of $0.5 million during 2011 on one unrated municipal revenue bond. During that year, management assessed the operating environment of the bond issuer as adverse and thus concluded the other-than-temporary impairment charge was warranted. The specific impairment was related to the loss of the contracted revenue source required for bond repayment. The total impairment recorded was 50% of the par value of the bond and provided a fair value of the bonds that was consistent with current market pricing. Because adverse conditions were noted in the operations of the bond issuer, the Company recorded the other-than-temporary impairment, but noted no further deterioration in the operating environment of the bond issuer. No other declines in the market value of the Company’s investment securities are deemed to be other-than-temporary at March 31, 2013 and December 31, 2012.

Note 5 of the footnotes to the consolidated financial statements provides further information on the Company’s investment securities.

Short-term Investments

Short-term investments result from excess funds that fluctuate daily depending on the funding needs of the Company and are currently invested overnight in interest-bearing deposit accounts at the FHLB of Dallas and Atlanta, the total balance of which earns interest at the current FHLB discount rate. The balance in interest-bearing deposits at other institutions decreased $279.4 million, or 38.7%, from $722.8 million at December 31, 2012 to $443.4 million at March 31, 2013. The primary cause of the decrease was the Company’s use of available cash to purchase higher-yielding investment securities, fund loan growth, and pay down its long-term debt, all in an attempt to improve its net interest margin. The Company’s cash activity is further discussed in the “Liquidity” section below.

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Other Assets

The following table details the changes in other asset balances as of March 31, 2013 and December 31, 2012.

TABLE 12 – OTHER ASSETS COMPOSITION

(dollars in thousands)	March 31, 2013		December 31, 2012		Increase/ (Decrease)
					Amount			Percent
Other Earning Assets
FHLB and FRB stock	$	39,864	$	46,216	$	(6,352	)		(13.7	)%
Fed funds sold		—		4,875		(4,875	)		(100.0	)
Other interest-bearing assets(1)		3,412		3,412		—			—
Total earning assets		43,276		54,503		(11,227	)		(20.6	)%
Non-Earning Assets
Premises and equipment		304,353		303,523		830			0.3	%
Bank-owned life insurance		101,495		100,556		939			0.9
Goodwill		401,872		401,872		—			—
Core deposit intangibles		17,997		19,122		(1,125	)		(5.9	)
Title plant and other intangible assets		7,602		7,660		(58	)		(0.8	)
Accrued interest receivable		32,707		32,183		524			1.6
Other real estate owned		131,836		121,536		10,300			8.5
Derivative market value		41,208		42,119		(911	)		(2.2	)
Receivable due from the FDIC		3,331		3,259		72			2.2
Investment in new market tax credit entities		134,161		135,793		(1,632	)		(1.2	)
Other		77,097		48,988		28,109			57.4
Total Other Assets	$	1,296,935	$	1,271,114	$	25,821			2.0	%

⁽¹⁾ Other interest-bearing assets are composed primarily of trust preferred common securities.

The $6.4 million decrease in FHLB and FRB stock was the result of $6.5 million in stock repurchases thus far in 2013. The repurchases are mandatory for eligible stock based on FHLB regulations. The repurchases were partially offset by $0.1 million in purchases of stock.

Fed funds sold and financing transactions represent short-term excess liquidity, and the balance varies based on the daily requirements of short-term liquidity needed by the Company and its subsidiaries for loan growth and other operating activities. The Company had $4.9 million in financing transactions outstanding at the end of 2012, whereas there were no fed funds sold or financing transactions at March 31, 2013. There was no change to the balance of other interest-bearing assets from 2012.

The $0.8 million increase in premises and equipment thus far in 2013 was a result of additional capitalized expenditures at the Company’s branches during the current quarter. The investment in additional branch property is part of the Company’s growth strategy and expansion into new markets. Total additions from the new branch assets were offset by the current quarter depreciation taken on the assets in service.

The $0.9 million increase in the Company’s bank-owned life insurance balance was a result of the income earned on policies during the first quarter.

The $1.1 million decrease in core deposit intangibles was due to amortization expense during the current quarter.

Other real estate includes all real estate, other than bank premises used in bank operations, that is owned or controlled by the Company, including real estate acquired in settlement of loans and former bank premises no longer used. The $10.3 million increase in the Company’s OREO balance from December 31, 2012 was a result of the additional covered OREO properties at March 31, 2013. Covered OREO properties were $89.2 million and $77.2 million at March 31, 2013 and December 31, 2012, respectively, which represented an increase of $12.0 million, or 15.5%, during the current quarter. The increase was a result of the movement of foreclosed covered assets to OREO. Non-covered OREO decreased $1.7 million, or 3.7%, and was primarily a result of the sale of OREO properties during the quarter.

The balance due to the Company from the FDIC from claims associated with the loss share agreements increased slightly during the first quarter of 2013. The increase in the balance was a result of the timing of repayment from the FDIC of losses submitted and timing of losses incurred. The Company’s submission of losses has remained steady compared to 2012 as the Company continues to manage the covered assets to ultimate disposition in a manner that is least loss to the FDIC. The balance due from the FDIC includes the

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reimbursable portion of incurred losses, net of recoveries (as those terms are defined in the respective loss share agreements) and reimbursable expenses, which were approximately $2.1 million and $3.3 million at March 31, 2013 and December 31, 2012, respectively.

The $1.6 million decrease in the Company’s investments in new market tax credits is a result of the amortization of the tax credits as they are recognized in the Company’s income tax provision calculation. There were no new investments in new market tax credits thus far in 2013.

The $28.1 million increase in other assets since December 31, 2012 was primarily the result of an increase of $26.5 million in the Company’s receivable for funds from the sale of investment securities before the end of the first quarter. Funds were received upon settlement in April 2013. In addition, the Company’s current income tax receivable increased $8.5 million as a result of the income tax benefit recorded during the current quarter. Offsetting these increases were decreases in prepaid assets and other current receivables since December 31, 2012.

There was no significant change in the Company’s title plant balance since December 31, 2012.

FUNDING SOURCES

Deposits obtained from clients in its primary market areas are the Company’s principal source of funds for use in lending and other business purposes. The Company attracts local deposit accounts by offering a wide variety of accounts, competitive interest rates and convenient branch office locations and service hours. Increasing core deposits through acquisitions and the development of client relationships is a continuing focus of the Company. Borrowings have become an important funding source as the Company has grown. Other funding sources include short-term and long-term borrowings, subordinated debt and shareholders’ equity. Refer to the “Liquidity” section below for further discussion of the Company’s sources and uses of funding sources. The following discussion highlights the major changes in the mix of deposits and other funding sources during the three-month period ended March 31, 2013.

Deposits

The Company’s ability to attract and retain customer deposits is critical to the Company’s continued success. During the first quarter of 2013, total deposits decreased $62.0 million, or less than 1%, totaling $10.7 billion at March 31, 2013, as total noninterest-bearing deposits increased $4.1 million and interest-bearing deposits decreased $66.2 million, or 0.8%, from December 31, 2012. Increases in the Company’s core deposit products were offset by a continued decline in total time deposits, as higher-priced certificates of deposit (“CDs”) matured and were not renewed due to continued rate reductions.

The following table and chart sets forth the composition of the Company’s deposits as of March 31, 2013 and December 31, 2012.

TABLE 13 – DEPOSIT COMPOSITION BY PRODUCT

(Dollars in thousands)
	March 31, 2013				December 31, 2012				Increase/(Decrease)
Noninterest-bearing deposits	$	1,971,809	19	%	$	1,967,662	18	%	$	4,147		0.2	%
NOW accounts		2,480,305	23			2,523,252	24			(42,947	)	(1.7	)
Money market accounts		3,773,172	35			3,738,480	35			34,692		0.9
Savings accounts		382,801	4			364,703	3			18,098		5.0
Certificates of deposit		2,078,180	19			2,154,180	20			(76,000	)	(3.5	)
Total deposits	$	10,686,267	100	%	$	10,748,277	100	%	$	(62,010	)	(0.6	)%

From a product perspective, interest-bearing deposits decreased $66.2 million, or 0.8%. Growth of $9.8 million, or less than 1%, in transaction and limited transaction accounts was offset by deposit losses from time deposits of $76.0 million. The decrease was seen in many of the Company’s markets, including the New Orleans, Lafayette, and Northeast Arkansas markets, where higher-priced certificates of deposit matured and were either not renewed or renewed at lower interest rates. The increase in noninterest-bearing deposits continues to provide the Company with a good source of available funds for continued asset growth.

Total time deposits decreased $76.0 million, or 3.5%, during the current quarter. Certificates of deposit in denominations of $100,000 and over decreased $53.1 million, or 4.6%, to $1.1 billion at March 31, 2013.

From a market perspective, total deposit growth was seen primarily in the Company’s Birmingham, Alabama, Memphis, Tennessee and Southwest Louisiana markets. Birmingham’s total customer deposits increased $33.3 million, or 9.0% during the first quarter of 2013. Total deposits in Memphis increased $5.0 million, or 3.2% since the end of 2012, while Southwest Louisiana had total customer deposit growth of $40.2 million, or 7.7%. Total deposit growth was offset by deposit runoff in the New Orleans, Louisiana, Baton Rouge, Louisiana, and Northeast Arkansas markets, primarily a result of time deposit runoff and decreases in seasonal noninterest and interest-bearing deposits.

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Short-term Borrowings

The Company may obtain advances from the FHLB of Dallas based upon the common stock it owns in the FHLB of Dallas and certain of its real estate loans and investment securities, provided certain standards related to the Company’s creditworthiness have been met. These advances are made pursuant to several credit programs, each of which has its own interest rate and range of maturities. The level of short-term borrowings can fluctuate significantly on a daily basis depending on funding needs and the source of funds chosen to satisfy those needs.

The Company also enters into repurchase agreements to facilitate customer transactions that are accounted for as secured borrowings. These transactions typically involve the receipt of deposits from customers that the Company collateralizes with its investment portfolio and have rates ranging from 0.09% to 0.80%. The following table details the average and ending balances of repurchase transactions as of and for the quarters ending March 31:

TABLE 14 – REPURCHASE TRANSACTIONS

(In thousands)
	2013		2012
Average balance	$	292,448	$	219,846
Ending balance		294,156		266,489

Since December 31, 2012, total short-term borrowings decreased $8.9 million, or 2.9%, to $294.2 million at March 31, 2013. The decrease was the result of a decrease in the Company’s securities sold under agreements to repurchase. On an average basis, short-term borrowings increased 30.7% from the first quarter of 2012. The increase in the average outstanding balance was largely due to management’s decision to take advantage of lower-cost funding sources during the current year.

Total short-term debt was 2.6% of total liabilities and 47.7% of total borrowings at March 31, 2013 compared to 2.6% and 41.7%, respectively, at December 31, 2012. On an average basis, short-term borrowings were 2.5% of total liabilities and 41.6% of total borrowings in the current quarter, compared to 2.2% and 33.9%, respectively, during the first quarter of 2012.

The weighted average rate paid on short-term borrowings was 0.19% thus far in 2013, compared to 0.25% for the first quarter of 2012.

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Long-term Debt

The Company’s long-term borrowings decreased $100.3 million, or 23.7%, to $323.0 million at March 31, 2013, compared to $423.4 million at December 31, 2012. The decrease in borrowings from December 31, 2012 is a result of the scheduled repayment of a portion of the Company’s long-term advances from the FHLB during the quarter, but is also a result of the redemption of $90.0 million in advances acquired in previous acquisitions. The early redemption resulted in additional expense of $2.3 million in the current quarter based on the prepayment penalty on the advances. As a result, the Company expects to reduce future interest expense by $2.5 million over the next five quarters.

On average, the Company’s long-term debt decreased to $411.9 million during the first three months of 2013. Average long-term debt was 3.6% of total liabilities during the current quarter, lower than the average during the first quarter of 2012 of 4.3%. On a period-end basis, long-term debt was 2.8% of total liabilities at March 31, 2013, also a decrease from 3.6% at December 31, 2012.

The Company’s long-term borrowings at March 31, 2013 included $133.5 million in fixed-rate advances from the FHLB of Dallas and Atlanta which cannot be paid off without incurring substantial prepayment penalties. The Company’s remaining debt consists of $111.9 million of junior subordinated deferrable interest debentures of the Company and $77.7 million in notes payable on investments in the Company’s new market tax credit entities. The debentures are issued to statutory trusts that were funded by the issuance of floating rate capital securities of the trusts and qualify as Tier 1 Capital for regulatory purposes. Interest is payable quarterly and may be deferred at any time at the election of the Company for up to 20 consecutive quarterly periods. During any deferral period, the Company is subject to certain restrictions, including being prohibited from declaring dividends to its common shareholders. The securities are redeemable by the Company in whole or in part after five years, or earlier under certain circumstances.

Shareholders’ Equity

Shareholders’ equity provides a source of permanent funding, allows for future growth and provides the Company with a cushion to withstand unforeseen adverse developments. At March 31, 2013, shareholders’ equity totaled $1.5 billion, a decrease of $5.8 million, or less than 1%, compared to December 31, 2012. The following table details the changes in shareholders’ equity during the three months ended March 31, 2013.

TABLE 15 – CHANGES IN SHAREHOLDERS’ EQUITY

(In thousands)	Amount
Balance, beginning of period	$	1,529,868
Net income		717
Other comprehensive loss		(1,185	)
Reissuance of treasury stock under management incentive plans, net of shares surrendered		2,253
Cash dividends declared		(10,095	)
Share-based compensation cost		2,512
Balance, end of period	$	1,524,070

Shareholder’s equity decreased as a result the dividend payments to common shareholders of $10.1 million in the current period, or $0.34 per common share.

CAPITAL RESOURCES

Federal regulations impose minimum regulatory capital requirements on all institutions with deposits insured by the Federal Deposit Insurance Corporation. The Federal Reserve Board (“FRB”) imposes similar capital regulations on bank holding companies. Compliance with bank and bank holding company regulatory capital requirements, which include leverage and risk-based capital guidelines, are monitored by the Company on an ongoing basis. Under the risk-based capital method, a risk weight is assigned to balance sheet and off-balance sheet items based on regulatory guidelines. At March 31, 2013, the Company exceeded all regulatory capital ratios.

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At the end of the first quarter, the Company’s regulatory capital ratios and those of IBERIABANK were in excess of the levels established for “well-capitalized” institutions as well, as shown in the following table and chart.

TABLE 16 – REGULATORY CAPITAL RATIOS

(Dollars in thousands)	Entity	“Well- Capitalized” Minimums			At March 31, 2013
					Actual			Excess Capital
Ratio
Tier 1 Leverage Ratio	Consolidated		5.00	%		9.37	%	$	551,102
	IBERIABANK		5.00			8.24			407,348
Tier 1 risk-based capital ratio	Consolidated		6.00			12.54			616,454
	IBERIABANK		6.00			11.03			472,501
Total risk-based capital ratio	Consolidated		10.00			13.80			358,305
	IBERIABANK		10.00			12.29			215,344

In June 2012, the FRB approved three related notices of proposed rulemaking (the “NPRs”) relating to implementation of minimum capital requirements and a capital conservation buffer reflecting requirements of the Dodd-Frank Wall Street Reform and Consumer Protection Act (“Dodd-Frank Act”) and the Basel III international capital standards. The three NPRs are expected to be published jointly by the Federal Reserve, the FDIC, and the Office of the Comptroller of Currency after each agency has completed its approval process. If approved as proposed, the NPRs would be effective over a phased-in period from 2013 to 2019. The Company is in the process of evaluating the impact of the proposed rules on the Company and IBERIABANK.

RESULTS OF OPERATIONS

The Company reported income available to common shareholders of $0.7 million and $19.4 million for the three months ended March 31, 2013 and 2012, respectively. Earnings per share (“EPS”) on a diluted basis were $0.02 and $0.66 for the first quarters of 2013 and 2012, respectively. In the first three months of 2013, net interest income increased $1.0 million, or 1.1%, over the same period of 2012, as interest expense decreased $3.8 million, or 21.8%, and interest income decreased $2.8 million, or 2.5%. Net interest income increased as a result of the decrease in the cost of interest-bearing liabilities, but was offset by a similar decrease in earning asset yields. The decrease in yields on earnings assets was offset partially by additional customer loan volume in 2013, resulting from both acquisition and organic growth. Income available to common shareholders was also positively impacted by a $6.2 million decrease in the Company’s provision for credit losses, but was negatively impacted by a $45.0 million increase in noninterest expenses, the drivers of which are discussed below in the “Noninterest Expense” section of the discussion.

The decrease in income before income taxes contributed to a decrease in income tax expense of $12.0 million in the first quarter of 2013. Cash earnings, defined as net income before the net of tax amortization of acquisition intangibles, amounted to $1.5 million and $20.2 million for the quarters ended March 31, 2013 and 2012, respectively.

The following discussion provides additional information on the Company’s operating results for the three-month periods ended March 31, 2013 and 2012, segregated by major income statement caption.

Net Interest Income

Net interest income is the difference between interest realized on earning assets and interest paid on interest-bearing liabilities and is also the driver of core earnings. As such, it is subject to constant scrutiny by management. The rate of return and relative risk associated with earning assets are weighed to determine the appropriateness and mix of earning assets. Additionally, the need for lower cost funding sources is weighed against relationships with clients and future growth requirements. The Company’s net interest spread, which is the difference between the yields earned on average earning assets and the rates paid on average interest-bearing liabilities, was 3.12%, and 3.43% during the first quarters of 2013 and 2012, respectively. The Company’s net interest margin on a taxable equivalent (“TE”) basis, which is net interest income (TE) as a percentage of average earning assets, was 3.23% and 3.59% for the same periods. Net interest spread and net interest margin were affected in the first quarter of 2013 by additional amortization of the Company’s FDIC loss share receivable due to the adoption of ASU No. 2012-06 in the current year.

Net interest income increased 1.1%, in the first three months of 2013 when compared to the corresponding quarter of 2012, to $92.9 million from $91.9 million. The improvement in net interest income was the result of a $1.4 billion increase in average earning assets and a decrease in the average cost of interest-bearing liabilities of 24 basis points, but was offset by an 11.3% increase in the average balance of interest-bearing liabilities and a 55 basis point decrease in earning asset yield. The average balance sheet growth over the past twelve months is primarily a result of growth in both the Company’s earning assets and noninterest-bearing deposits, due to both acquisition-related growth from Florida Gulf in the third quarter of 2012 and organic growth in the Company’s balance sheet.

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Average loans made up 72.2% and 70.7% of average earning assets in the first quarters of 2013 and 2012, respectively. Quarter-to-date average loans increased $159.3 million, or 1.9%, since December 31, 2012, and $1.2 billion, or 15.7%, since March 31, 2012, and was the result of loan growth in the Company’s non-covered loan portfolio. Investment securities made up 17.3% of average earning assets during the current quarter, compared to 19.0% during the same period of 2012. Over the past year, management has focused efforts to reduce its lower-yielding excess liquidity (defined as fed funds sold and interest-bearing cash) by investing in higher-yielding loans and investment securities, as well as paying down its short- and long-term debt in efforts to improve net interest income. Other significant components of earning assets during the first quarter of 2013 included the Company’s FDIC loss share receivable (3.2% of average earning assets) and excess liquidity (5.3% of average earning assets). During the first quarter of 2012, the Company’s FDIC loss share receivable was 5.5% of average earning assets, with excess liquidity accounting for 3.1% of average earning assets.

Average interest-bearing deposits made up 92.6% of average interest-bearing liabilities during the current quarter, up slightly from 92.2% during the first three months of 2012. Average short- and long-term borrowings made up 3.1% and 4.4% of average interest-bearing liabilities in the first quarter of 2013, respectively, compared to 2.6% and 5.1% during the first quarter of 2012.

The following table sets forth, for the periods indicated, information regarding (i) the total dollar amount of interest income of the Company from earning assets and the resultant average yields; (ii) the total dollar amount of interest expense on interest-bearing liabilities and the resultant average rates; (iii) net interest income; (iv) net interest spread; and (v) net interest margin. Information is based on average daily balances during the indicated periods. Investment security market value adjustments and trade-date accounting adjustments are not considered to be earning assets and, as such, the net effect is included in nonearning assets. Taxable equivalent yields are calculated using a marginal tax rate of 35%.

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TABLE 17 – AVERAGE BALANCES, NET INTEREST INCOME AND INTEREST YIELDS / RATES

	For The Three Months Ended March 31,
(Dollars in thousands)	2013									2012
	Average Balance			Interest			Average Yield/ Rate			Average Balance			Interest			Average Yield/ Rate
Earning assets:
Loans receivable:
Mortgage loans	$	472,112		$	7,458			6.32	%	$	470,429		$	8,468			7.20	%
Commercial loans (TE)		6,205,785			88,437			5.80			5,362,517			91,086			6.82
Consumer and other loans		1,865,641			27,172			5.91			1,548,242			24,380			6.33
Total loans		8,543,538			123,067			5.85			7,381,188			123,934			6.74
Loans held for sale		178,387			1,325			2.97			117,186			1,049			3.58
Investment securities (TE)		2,042,275			8,861			1.92			1,987,202			11,455			2.51
FDIC loss share receivable		384,319			(27,702	)		(28.83	)		573,776			(27,927	)		(19.26	)
Other earning assets		678,917			865			0.52			384,861			676			0.71
Total earning assets		11,827,436			106,416			3.70			10,444,213			109,187			4.25
Allowance for credit losses		(245,384	)								(185,952	)
Nonearning assets		1,492,956									1,429,820
Total assets	$	13,075,008								$	11,688,081
Interest-bearing liabilities:
Deposits:
NOW accounts	$	2,464,922		$	1,944			0.32	%	$	1,924,371		$	1,911			0.40	%
Savings and money market accounts		4,170,123			3,556			0.35			3,481,073			4,384			0.51
Certificates of deposit		2,130,948			4,654			0.89			2,445,008			7,666			1.26
Total interest-bearing deposits		8,765,993			10,154			0.47			7,850,452			13,961			0.72
Short-term borrowings		292,948			141			0.19			224,066			142			0.25
Long-term debt		411,933			3,250			3.16			436,331			3,223			2.92
Total interest-bearing liabilities		9,470,874			13,545			0.58			8,510,849			17,326			0.82
Noninterest-bearing demand deposits		1,937,890									1,530,504
Noninterest-bearing liabilities		135,176									149,946
Total liabilities		11,543,940									10,191,299
Shareholders’ equity		1,531,068									1,496,782
Total liabilities and shareholders’ equity	$	13,075,008								$	11,688,081
Net earning assets	$	2,356,562								$	1,933,364
Net interest spread				$	92,871			3.12	%				$	91,861			3.43	%
Net interest income (TE) / Net interest margin (TE)				$	95,335			3.23	%				$	94,233			3.59	%

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The following table sets forth, for the periods indicated, information regarding the Company’s average loan balance and average yields, segregated into the covered and non-covered portfolio. Information on the Company’s covered loan portfolio is presented both with and without the yield on the FDIC loss share receivable.

TABLE 18 – AVERAGE LOAN BALANCE AND YIELDS

	Three Months Ended March 31,
(Dollars in thousands)	2013					2012
	Average Balance		Average Yield			Average Balance		Average Yield
Non-covered loans (TE)(1)	$	7,504,069		4.44	%	$	6,088,027		4.78	%
Covered loans (TE)(1)		1,039,469		16.05			1,293,161		15.97
FDIC loss share receivable		384,319		-28.83			573,776		-19.26
Net covered loans (TE)(1)		1,423,788		5.35			1,866,937		7.45
Total loan portfolio (TE)(1)	$	8,927,857		4.36	%	$	7,954,964		4.87	%

(1) Taxable equivalent yields are calculated using a marginal tax rate of 35%.

The following table displays the dollar amount of changes in interest income and interest expense for major components of earning assets and interest-bearing liabilities. The table distinguishes between (i) changes attributable to volume (changes in average volume between periods times the average yield/rate for the two periods), (ii) changes attributable to rate (changes in average rate between periods times the average volume for the two periods), and (iii) total increase (decrease). Changes attributable to both volume and rate are allocated ratably between the volume and rate categories.

TABLE 19 – SUMMARY OF CHANGES IN NET INTEREST INCOME

	2013 / 2012
	Change Attributable To
(In thousands)	Volume			Rate			Total Increase (Decrease)
Earning assets:
Loans receivable:
Mortgage loans	$	30		$	(1,040	)	$	(1,010	)
Commercial loans (TE)		13,246			(15,895	)		(2,649	)
Consumer and other loans		4,616			(1,824	)		2,792
Loans held for sale		478			(202	)		276
Investment securities (TE)		225			(2,819	)		(2,594	)
FDIC loss share receivable		11,050			(10,825	)		225
Other earning assets		92			97			189
Total net change in income on earning assets		29,737			(32,508	)		(2,771	)
Interest-bearing liabilities:
Deposits:
NOW accounts		474			(441	)		33
Savings and money market accounts		739			(1,567	)		(828	)
Certificates of deposit		(896	)		(2,116	)		(3,012	)
Borrowings		(148	)		174			26
Total net change in expense on interest-bearing liabilities		169			(3,950	)		(3,781	)
Change in net interest spread	$	29,568		$	(28,558	)	$	1,010

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Interest income includes interest income earned on earning assets as well as applicable loan fees earned. Interest income that would have been earned on nonaccrual loans had they been on accrual status is not included in the data reported above.

The decrease in yield on total earning assets between 2013 and 2012 was driven by lower yields on the Company’s loan and investment security portfolios, as well as a higher amortization of the Company’s FDIC loss share receivable (that results in a negative yield for this asset).

For the three months ended March 31, 2013, the decrease in the rates earned on the Company’s assets drove the $2.8 million decrease in interest income, but average balance increases in the largest components of earning assets offset these rate decreases. Average loan balances increased $1.2 billion, or 15.7%, over the comparable 2012 quarter and can be attributed to the non-covered loan growth since March 31, 2012, both from the Florida Gulf acquisition and organic non-covered loan growth. Covered loan yields decreased 210 basis points during the current quarter. The amortization of the loss share receivable was $27.7 million thus far in 2013, a decrease of $0.2 million that can be attributed to the additional amortization recorded on the portfolio as a result of the adoption of ASU 2012-06. As expected cash flow on the covered loan and OREO portfolios increases, the carrying value of the FDIC loss share receivable decreases, with the difference recorded as an adjustment to earnings. Interest income growth was also slowed in the current year by a decrease in the yield on the Company’s non-covered loan portfolio of 34 basis points to 4.44%. The total yield of the loan portfolio when including the loss share receivable was 4.36%, 51 basis points lower than the same period of 2012, and offset the income earned on loan volume increases over 2012.

Interest income growth was also slowed by a 59 basis point decrease in the yield on the Company’s investment securities. Average investment securities increased $55.1 million, however, between the first quarters of 2013 and 2012, partially offsetting the effect the yield decline had on interest income. Despite the decrease in yield, investment securities yielded 1.92% during the first three months of 2013, well above the yield on interest-bearing cash and fed funds sold of 0.23% for the same period.

Driven by a decrease of 24 basis points in the rate paid on interest-bearing liabilities during the current quarter, interest expense decreased $3.8 million, or 21.8%, from the first quarter of 2012. Despite an increase of $915.5 million in average interest-bearing deposits (a result of both acquired Florida Gulf deposits and organic deposit growth), interest expense on the Company’s deposits decreased 27.3%, or $3.8 million, from 2012, as the average rate paid on these deposits decreased to 0.47% for the first quarter of 2013, a 25 basis point drop. Higher-yielding time deposits across many markets either matured or were repriced during 2013, driving the expense and rate decreases. Interest expense on the Company’s short- and long-term borrowings remained flat with the first quarter of 2012, as average balance increases were offset by a decline in the rate paid on these borrowings.

Provision for Credit Losses

Management of the Company assesses the allowance for credit losses monthly and will make provisions for credit losses as deemed appropriate in order to maintain the appropriateness of the allowance for credit losses. Increases in the allowance for credit losses are achieved through provisions for credit losses that are charged against income. Adjustments to the allowance may also result from credit quality changes associated with loans acquired.

On a consolidated basis, the Company recorded a reversal of provision for credit losses of $3.4 million for the three months ended March 31, 2013, a $6.2 million, or 218.2%, decrease from the provision recorded for the same period of 2012. The Company’s provision in 2013 included a provision for changes in expected cash flows on the Company’s acquired loan portfolio of $0.6 million, but was offset by a $4.0 million decrease in the Company’s provision recorded on non-acquired loans based on an improvement in asset quality. The Company’s total provision was limited in the first quarter of 2013 by an improvement in legacy portfolio asset quality over the past 12 months, as multi-year net charge-off trends in this portfolio continue to show signs of improvement.

Non-covered loans past due totaled $119.3 million at March 31, 2013, a decrease of $8.5 million from December 31, 2012. Past due loans, including nonaccrual loans, were 1.56% of total loans (before acquired loan discount adjustments) at the end of the first quarter of 2013, a 15 basis point decrease from December 31, 2012. Excluding the acquired loans, loans past due were 0.81% of total loans at March 31, 2013, an improvement of 11 basis points from the fourth quarter of 2012.

Net charge-offs on the consolidated portfolio were $1.2 million year-to-date, a net charge-off percentage of 0.06%, three basis points lower than the 0.09% in the first quarter of 2012. The net charge-offs were a result of $2.1 million in charge-offs and $0.9 million in recoveries.

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The Company believes the allowance was appropriate at March 31, 2013, December 31, 2012, and March 31, 2012 to cover probable losses in the Company’s loan portfolio. The allowance for credit losses as a percentage of outstanding loans, net of unearned income, decreased 75 basis points from 2.96% at December 31, 2012 to 2.21% at March 31, 2013.

The Company’s allowance for the non-covered portfolio was 1.03% of non-covered loans at March 31, 2013 and 1.12% at December 31, 2012. On the same basis, the Company’s allowance at March 31, 2013 was 155.7% of total nonperforming loans, which compares favorably to 81.3% of nonperforming loans at the end of 2012.

Noninterest Income

The Company’s operating results for the three months ended March 31, 2013 included noninterest income of $44.5 million compared to $37.4 million for the same period of 2012. The growth of the Company’s noninterest income has been a management focus in response to a challenging interest rate environment. As a result, the Company has continued to increase its investment in these revenue streams, primarily its wealth management, trust, and brokerage businesses, in order to improve its noninterest income. Noninterest income as a percentage of total gross revenue (defined as total interest and noninterest income) thus far in 2013 increased to 29.5% compared to 25.5% of total gross revenue in the first quarter of 2012.

The following table illustrates the primary components of noninterest income for the periods indicated.

TABLE 20 – NONINTEREST INCOME

(Dollars in thousands)	Three Months Ended March 31,					Percent Increase
	2013		2012			(Decrease)
Service charges on deposit accounts	$	6,797	$	5,980			13.7	%
ATM/debit card fee income		2,183		2,024			7.9
Income from bank owned life insurance		939		951			(1.3	)
Mortgage income		18,931		13,718			38.0
Gain (loss) on sale of assets		47		(25	)		288.8
Gain on sale of investments, net(1)		2,359		2,836			(16.8	)
Title revenue		5,021		4,533			10.8
Broker commission income		3,534		3,060			15.5
Other income		4,680		4,319			8.4
Total noninterest income	$	44,491	$	37,396			19.0	%

(1) Gain on sale of investments includes gains on the calls of held to maturity securities of $31,000 and $35,000 for the three months ended March 31, 2013 and 2012, respectively.

Service charges on deposit accounts increased $0.8 million in the first quarter of 2013 over the prior quarter-to-date period, due primarily to an increase in service charge fees and NSF charges. Customers increased as a result of the Florida Gulf acquisition and new branch openings over the past 12 months.

ATM/debit card fee income increased $0.2 million for the corresponding 2012 period primarily due to an increase in interchange fee income from increases in transaction volume from the expanded cardholder base and in usage by customers.

Income earned from bank owned life insurance remained flat in the first quarter of 2013 when compared to the first quarter of 2012, consistent with market performance and current yields.

IMC had another successful quarter in terms of production and sales volume, which drove the $5.2 million increase in mortgage loan income over the first quarter ended March 31, 2012. Sales proceeds increased $145.4 million, or 29.7%, between the two first quarters. In addition to the volume increase, a higher margin on the sales of mortgage loans led to higher income thus far in 2013. Average margin on the sale of mortgage loans was 3.09% during the first quarter of 2013, an 18 basis point increase over the average margin in the first quarter of 2012.

The Company recorded a net gain on the sale of assets during 2013 of less than $0.1 million as a result of the disposal of equipment no longer in use.

Changes in the sales volume of investment securities primarily drove the change in the gains recorded on these sales. Gains on investment sales decreased $0.5 million in the first quarter of 2013 when compared to the same 2012 period. Gains were recorded on the sale of $43.4 million in available-for-sale securities and the call of $8.7 million of held-to-maturity investments for the three months of 2013, compared to the sale of $79.0 million in securities during the first quarter of 2012.

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Title income increased $0.5 million during the first quarter of 2013 when compared to the first quarter of 2012 and was the result of a favorable mortgage business environment, fueled by low mortgage interest rates.

Similar to IMC, the Company’s wealth management subsidiaries had very successful revenue growth, as total broker commissions increased $0.5 million compared to 2012, a result of the Company’s expanded client base and service offering. The Company’s other wealth management income, which includes research income, syndicate deals, and investment banking management and underwriting fees, increased $1.1 million, or 217.9%, over the comparable 2012 period, but was offset by slightly lower sales commissions.

Other noninterest income increased $0.4 million for the three months ended March 31, 2013 when compared to the corresponding three-month period of 2012. Other noninterest income in 2013 was positively impacted by higher trust department income (an increase of $0.3 million, or 35.7%), which can be attributed to the increased customer base and growth of the business. Income was also positively affected by an increase in credit card fee income of $0.3 million, but those increases were partially offset by lower deferred compensation earnings in the first quarter of 2013.

Noninterest Expense

The Company’s results for the first three months of 2013 included noninterest expenses of $144.9 million, $45.0 million above noninterest expenses of $99.9 million for the first quarter of 2012. Ongoing attention to expense control is part of the Company’s corporate culture. However, the Company’s continued focus on growth through new branches, acquisitions, product expansion, and operational investments have caused related increases in several components of noninterest expense. Since the first quarter of 2012, the Company acquired eight branches in the Florida Gulf acquisition and, after adjusting for closed or consolidated branches, an additional two branches.

The most significant driver of the increase in noninterest expense over the first quarter of 2012 was the $31.8 million impairment recorded in 2013 on the Company’s FDIC loss share receivables. Also affecting results was the $2.3 million prepayment penalty recorded in the first quarter of 2013 to repay $90.0 million in long-term FHLB advances acquired in prior periods. Excluding these two charges, noninterest expense would have been increased $10.9 million, or 10.9%, more representative of the Company’s growth over the past 12 months.

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The following table illustrates the primary components of noninterest expense for the periods indicated.

TABLE 21 – NONINTEREST EXPENSE

(Dollars in thousands)	Three Months Ended March 31,				Percent Increase
	2013		2012		(Decrease)
Salaries and employee benefits	$	62,529	$	54,819		14.1	%
Occupancy and equipment		15,195		12,719		19.5
Franchise and shares tax		1,220		1,020		19.6
Communication and delivery		3,271		3,133		4.4
Marketing and business development		3,087		3,022		2.2
Data processing		3,992		3,176		25.7
Printing, stationery and supplies		757		790		(4.2	)
Amortization of acquisition intangibles		1,183		1,290		(8.3	)
Professional services		4,418		4,100		7.8
Net costs of OREO		972		2,684		(63.8	)
Credit and other loan related expense		3,739		4,027		(7.1	)
Insurance		2,501		2,609		(4.2	)
Travel and entertainment		2,268		2,124		6.8
Impairment of FDIC loss share receivable		31,813		—		100.0
Prepayment penalty on FHLB debt		2,307		—		100.0
Other expenses		5,646		4,360		29.5
Total noninterest expense	$	144,898	$	99,873		45.1	%

Salaries and employee benefits increased $7.7 million in the first three months of 2013 when compared to the corresponding 2012 period. The increase was primarily the result of increased staffing due to the growth of the Company. Current year expenses include the full year impact of additional Florida Gulf personnel, as well as personnel from the Company’s new branches. Full-time equivalent employees increased to over 2,700 at the end of the first quarter, a 4.9% increase from March 31, 2012. The Company added these employees as part of the Florida Gulf acquisition, but the increase includes additional revenue-producing positions at IBERIABANK and its mortgage origination subsidiary.

Total employee compensation increased $6.1 million, or 12.8%, while related employee benefits increased 22.9%, or 1.8 million, to $9.7 million for the quarter ended March 31, 2013. The increase in compensation is a result of the increase in headcount due to the growth of the Company, but is also a result of a full quarter of compensation expense from Florida Gulf employees in 2013. Employee compensation in the current period included $0.2 million of additional share-based incentive compensation due to additional restricted stock, phantom stock, and option grants over the past 12 months. Employee compensation also includes commissions and production-related bonuses which increased $1.3 million, or 26.1% from 2012, consistent with the increases in income from these product lines.

Employee benefits include payroll taxes, medical and dental insurance expenses, and retirement contributions. The increase in these benefits was a result of $0.6 million in additional hospitalization expense during the first quarter of 2013, partially from an increase in headcount and partially from higher claims processed in the current quarter. Employee benefits also included a $1.0 million, or 26.7%, increase in total payroll taxes in 2013, mostly a result of the elimination of payroll tax cuts at the end of 2012.

Occupancy and equipment expenses were up $2.5 million, or 19.5%, from the first quarter of 2012. These increased costs include repairs and maintenance on branches, depreciation, utilities, rentals and property taxes. Depreciation expense increased $1.0 million, or 23.0%. The higher depreciation expense is a result of additional branches opened and the Florida Gulf branches, but also includes $0.4 million in accelerated depreciation on the Company’s four branches that closed in 2013. Building rent, repairs, and property taxes increased $0.6 million, $0.7 million, and $0.2 million, respectively, and account for most of the remaining increase over the period ended March 31, 2012.

Franchise and shares tax expense increased $0.2 million as a result of a $0.2 million increase in franchise tax expense in the current period as a result of a result of a higher assessment base for the calculation for IBERIABANK. The higher assessment resulted from increased equity at IBERIABANK at the end of December.

The Company’s expansion from the Florida Gulf acquisitions as well as new branches opened since the end of the first quarter of 2012 led to a $0.1 million increase in communication and delivery expenses. The increase was the result of an increase in data line and telephone expenses. The increase was consistent with the expansion of the Company’s footprint.

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In the first quarter of 2013, marketing and business development expenses increased $0.1 million from the same period of 2012 as a result of a $0.2 million increase in business development expenses, with the increase a result of its focused efforts in community reinvestment activities. Offsetting the increase was a reduction in advertising expenses. Advertising expenses for the first quarter of 2012 included expenses focused on the Company’s 125^th anniversary campaign and included promotional giveaways and focused branch events.

Data processing expenses increased $0.8 million in the first quarter of 2013 as the Company incurred additional processing charges as the Company increases its branch network and system capabilities and software amortization from system enhancements and upgrades.

Because there were no new core deposit intangible assets created in the 2012 acquisition of Florida Gulf, amortization expense decreased from the first quarter of 2012 by $0.1 million. The decrease was a result of the accelerated amortization of existing core deposit and other intangible assets recorded in earlier periods.

Due to the growth of the Company over the past 12 months, professional services expense thus far in 2013 was $0.3 million higher than in 2012. The continued expansion of the size and breadth of Company’s operations has typically required additional expenditures for legal services, consulting engagements, exam and supervisory review, and audit services. More specifically, consulting expenses increased $0.7 million in the current quarter as the Company engages consultants to address risk mitigation and improve the operational efficiency of the Company. The Company’s efforts to improve various Company and business-line specific processes drove the increase in total consulting expenses over the first quarter of 2012. The Company expects to see the benefit of these improvements in future periods. Offsetting the additional consulting expenses was a decrease in total legal expenses of $0.3 million, or 34.3%, mostly from settlements and litigation costs.

Net costs of OREO properties decreased $1.7 million from the first three months of 2012, as write-downs taken on OREO properties decreased $1.4 million, or 54.9% and property taxes paid on held properties decreased $0.3 million, or 43.0%. Offsetting these changes were additional insurance and other expenses on these properties, driven primarily by the additional properties in the portfolio during the current quarter. The increased expenses were offset partially by an increase in the income earned on the properties during 2013.

Credit and loan related expenses decreased $0.3 million between the first quarters of 2012 and 2013, which is consistent with the general improvement in asset quality between periods. Total expenses incurred for appraisal, inspection, underwriting, certification, and collections have decreased as the number of problem credits has decreased.

Insurance expenses decreased $0.1 million in the first quarter of 2013, primarily as a result of lower deposit insurance in the current quarter. The decrease in deposit insurance was a result of a change in the Company’s assessment rate used by the FDIC to calculate deposit insurance.

Thus far in 2013, travel and entertainment expenses increased $0.1 million from the first quarter of 2012, primarily a result of the steady increase in travel costs as the Company expands its branch network and number of locations. Travel expenses drove the increase over 2012, as mileage, lodging, and flight costs have increased due to the number of employees traveling, the expanded size of the Company’s footprint, and a general increase in the cost of travel.

Other noninterest expenses for the first quarter of 2013 increased $1.3 million over the first three months of 2012 and was primarily the result of an increase in employee development and credit card expenses for the year. The additional costs were a result of the increased employee and client base. Also affecting 2013 results was an increase in expenses from the Company’s investments in new market tax credits, as passive losses increased $0.9 million during the first quarter of 2013.

Income Taxes

For the quarterly period ended March 31, 2013, the Company recorded an income tax benefit of $4.9 million and incurred income tax expense of $7.1 million for the first quarter of 2012. The Company’s effective tax rate for those periods was an effective benefit of 117.2% of the loss before income taxes for the three months ended March 31, 2013 and an effective income tax expense rate of 26.9% for the three months ended March 31, 2012. Ordinarily, the difference between the effective tax rate and the statutory federal and state tax rates primarily relates to variances in items that are non-taxable or non-deductible, primarily the effect of tax-exempt income, the non-deductibility of part of the amortization of acquisition intangibles, and various tax credits. For the first quarter of 2013, the Company’s income tax rate was also positively affected by the impairment of the FDIC loss share receivable and the prepayment penalty recorded on the repayment of FHLB debt, discussed further in the “Executive Overview” discussion above. As a result of these charges, the Company’s annualized income before taxes, and by extension its taxable income, was lower than in previous periods. The full benefit of these infrequent items, $11.9 million, was the primary driver of the income tax benefit recorded in the first quarter of 2013 and more than offset the income tax expense recorded on the Company’s pre-tax income at its annualized effective tax rate excluding these charges. IBERIABANK’s effective federal tax rate excluding these charges was 28.2% for the first quarter of 2013, compared to 28.8% for the first quarter of 2012. The Company’s consolidated effective tax rates were also positively impacted by the Company’s ICP subsidiary, as well as the holding company, as these entities had income tax benefits during the periods from net losses. The effective tax rate on these entities is higher than IBERIABANK’s effective tax rate (which is affected by the various tax credits).

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The consolidated effective tax rate in 2013 has decreased when compared to the first quarter of 2012. The difference in the effective tax rates for the periods presented is primarily the result of the relative tax-exempt interest income levels during the respective periods for each of the Company’s subsidiaries. The tax rate for the current year is lower than in 2012 as a result of the effect of the change in IBERIABANK’s effective tax rate discussed above.

LIQUIDITY AND OTHER OFF-BALANCE SHEET ACTIVITIES

The Company’s liquidity, represented by cash and cash equivalents, as well as available off balance sheet borrowing sources, is a product of its operating, investing and financing activities. The Company manages its liquidity with the objective of maintaining sufficient funds to respond to the predicted needs of depositors and borrowers and to take advantage of investments in earning assets and other earnings enhancement opportunities. The primary sources of funds for the Company are deposits, borrowings, repayments and maturities of loans and investment securities, securities sold under agreements to repurchase, as well as funds provided from operations and to a lesser extent off balance sheet borrowing sources. Certificates of deposit scheduled to mature in one year or less at March 31, 2013 totaled $1.5 billion. Based on past experience, management believes that a significant portion of maturing deposits will remain with the Company. Additionally, the majority of the investment security portfolio is classified by the Company as available-for-sale which provides the ability to liquidate unencumbered securities as needed. Of the $2.1 billion in the investment securities portfolio, $649.5 million is unencumbered and $1.5 billion has been pledged to support repurchase transactions, public funds deposits and certain long term borrowings. Due to the relatively short implied duration of the investment security portfolio, the Company continues to experience significant cash inflows on a regular basis.

Net cash outflows totaled $344.5 million during the first quarter of 2013, a decrease of $363.9 million from net cash inflows of $19.5 million during the three months ended March 31, 2013.

The following table summarizes the Company’s cash flows for the three months ended March 31 for the periods indicated.

TABLE 22 – CASH FLOW ACTIVITY BY TYPE

(Dollars in thousands)	2013			2012
Cash flow provided by operations	$	108,332		$	54,927
Cash flow used in investing activities		(274,690	)		(47,678	)
Cash flow (used in) provided by financing activities		(178,103	)		12,236
Net (decrease) increase in cash and cash equivalents	$	(344,461	)	$	19,485

The Company had operating cash inflow of $108.4 million for the three months ended March 31, 2013, $53.5 million more than cash provided by operations for the same period of 2012. Operating cash flow in the current quarter was positively impacted by an increase in the net proceeds received from mortgage loan sales of $59.4 million, but was negatively impacted by a decrease in net income and an increase in other assets.

Cash flow from investing activities decreased $227.1 million during 2013 when compared to 2012. A decrease in net cash flow from investment securities drove the decrease in cash flow from the first quarter of 2012. Net cash flow from investment security activity decreased $225.0 million thus far in 2013 as a result of a higher level of security purchases and lower sales and maturities of securities in 2013.

Net financing cash flows decreased $190.3 million during the current quarter when compared to 2012, primarily due to a decrease in cash from customer deposits that results in a $234.8 million difference in net deposit cash flow between the two periods. Net cash outflow of $108.5 million from short-term borrowings and long-term debt in 2013, however, was $42.6 million lower than in the first quarter of 2012 and offset the cash outflow from deposits in the current quarter.

Based on its available cash at March 31, 2013, the Company believes it has adequate liquidity to fund ongoing operations. The Company has adequate availability of funds from deposits, borrowings, repayments and maturities of loans and investment securities to provide the Company additional working capital if needed.

While scheduled cash flows from the amortization and maturities of loans and securities are relatively predictable sources of funds, deposit flows, prepayments of loan and investment securities, and draws on customer letters and lines of credit are greatly influenced by general interest rates, economic conditions, competition, and customer demand. The FHLB of Dallas provides an additional source of liquidity to make funds available for general requirements and also to assist with the variability of less predictable funding sources. At March 31, 2013, the Company had $133.5 million of outstanding long-term advances from the FHLB. There were no short-term FHLB

82

advances outstanding at March 31, 2013. Additional advances available at March 31, 2013 from the FHLB amounted to $2.3 billion. The Company and IBERIABANK also have various funding arrangements with commercial banks providing up to $110.0 million in the form of federal funds and other lines of credit, and at March 31, 2013, there were no balances outstanding on these lines, and all of the funding was available to the Company.

Liquidity management is both a daily and long-term function of business management. Excess liquidity is generally invested in short-term investments such as overnight deposits. On a longer-term basis, the Company maintains a strategy of investing in various lending and investment security products. The Company uses its sources of funds primarily to meet its ongoing commitments and fund loan commitments. The Company has been able to generate sufficient cash through its deposits, as well as borrowings, and anticipates it will continue to have sufficient funds to meet its ongoing liquidity requirements.

ASSET/ LIABILITY MANAGEMENT, MARKET RISK AND COUNTERPARTY CREDIT RISK

The principal objective of the Company’s asset and liability management function is to evaluate the interest rate risk included in certain balance sheet accounts, determine the appropriate level of risk given the Company’s business focus, operating environment, capital and liquidity requirements and performance objectives, establish prudent asset concentration guidelines and manage the risk consistent with Board approved guidelines. Through such management, the Company seeks to reduce the vulnerability of its operations to changes in interest rates. The Company’s actions in this regard are taken under the guidance of the Senior Management Planning Committee. The Senior Management Planning Committee normally meets monthly to review, among other things, the sensitivity of the Company’s assets and liabilities to interest rate changes, local and national market conditions and interest rates. In connection therewith, the Senior Management Planning Committee generally reviews the Company’s liquidity, cash flow needs, maturities of investments, deposits, borrowings and capital position.

The objective of interest rate risk management is to control the effects that interest rate fluctuations have on net interest income and on the net present value of the Company’s earning assets and interest-bearing liabilities. Management and the Board are responsible for managing interest rate risk and employing risk management policies that monitor and limit this exposure. Interest rate risk is measured using net interest income simulation and asset/liability net present value sensitivity analyses. The Company uses financial modeling to measure the impact of changes in interest rates on the net interest margin and predict market risk. Estimates are based upon numerous assumptions including the nature and timing of interest rate levels including yield curve shape, prepayments on loans and securities, deposit decay rates, pricing decisions on loans and deposits, reinvestment/replacement of asset and liability cash flows and others. These analyses provide a range of potential impacts on net interest income and portfolio equity caused by interest rate movements.

Included in the modeling are instantaneous parallel rate shift scenarios, which are utilized to establish exposure limits. These scenarios are known as “rate shocks” because all rates are modeled to change instantaneously by the indicated shock amount, rather than a gradual rate shift over a period of time that has traditionally been more realistic.

The Company’s interest rate risk model indicated that the Company was asset sensitive in terms of interest rate sensitivity. Based on the Company’s interest rate risk model at March 31, 2013, the table below illustrates the impact of an immediate and sustained 100 and 200 basis point increase or decrease in interest rates on net interest income.

TABLE 23 – CHANGE IN NET INTEREST INCOME FROM INTEREST RATE CHANGES

Shift in Interest Rates (in bps)	% Change in Projected Net Interest Income
+200		9.0	%
+100		4.3
-100		-1.8
-200		-3.9

The influence of using the forward curve as of March 31, 2013 as a basis for projecting the interest rate environment would approximate a 0.8% increase in net interest income. The computations of interest rate risk shown above do not necessarily include certain actions that management may undertake to manage this risk in response to anticipated changes in interest rates and other factors.

The interest rate environment is primarily a function of the monetary policy of the FRB. The principal tools of the FRB for implementing monetary policy are open market operations, or the purchases and sales of U.S. Treasury and federal agency securities. The FRB’s objective for open market operations has varied over the years, but the focus has gradually shifted toward attaining a specified level of the federal funds rate to achieve the long-run goals of price stability and sustainable economic growth. The federal funds rate is the basis for overnight funding and drives the short end of the yield curve. Longer maturities are influenced by FRB purchases and sales and also expectations of monetary policy going forward. In response to growing concerns about the banking industry and customer liquidity, the federal funds rate decreased seven times to a new all-time low of 0.25% at the end of 2008. The federal funds rate remained at 0.25% through 2012 and will remain at that rate through at least late 2014. The Company’s commercial loan portfolio is also impacted by fluctuations in the level of the London Interbank Borrowing Offered Rate (LIBOR), as a large portion of this portfolio reprices based on

83

this index. The decrease in the federal funds, LIBOR, and U.S. Treasury rates have resulted in compressed net interest margin for the Company, as assets have repriced more quickly than the Company’s liabilities. Although management believes that the Company is not significantly affected by changes in interest rates over an extended period of time, any continued flattening of the yield curve will exert downward pressure on the net interest margin and net interest income. The table below presents the Company’s anticipated loan repricing over the next four quarters.

TABLE 24 – LOAN REPRICING BY LOAN TYPE

(Dollars in thousands)	2Q 2013		3Q 2013		4Q 2013		1Q 2014		Total less than one year
Covered loans	$	348,854	$	90,280	$	76,476	$	76,523	$	592,133
Non-covered loans
Commercial loans		3,304,431		177,392		137,573		129,789		3,749,185
Mortgage loans		55,385		32,910		31,015		25,940		145,250
Consumer loans		721,438		91,670		82,234		77,467		972,809
Total non-covered loans		4,081,254		301,972		250,822		233,196		4,867,244
Total loans receivable	$	4,430,108	$	392,252	$	327,298	$	309,719	$	5,459,377

As part of its asset/liability management strategy, the Company has emphasized the origination of commercial and consumer loans, which typically have shorter terms than residential mortgage loans and/or adjustable or variable rates of interest. The majority of fixed-rate, long-term residential loans are sold in the secondary market to avoid assumption of the interest rate risk associated with longer duration assets in the current low rate environment. As of March 31, 2013, $4.2 billion, or 49.5%, of the Company’s total loan portfolio had adjustable interest rates. IBERIABANK had no significant concentration to any single loan component or industry segment.

The Company’s strategy with respect to liabilities in recent periods has been to emphasize transaction accounts, particularly noninterest or low interest-bearing transaction accounts, which are significantly less sensitive to changes in interest rates. At March 31, 2013, 80.6% of the Company’s deposits were in transaction and limited-transaction accounts, compared to 80.0% at December 31, 2012. Noninterest bearing transaction accounts totaled 18.5% of total deposits at March 31, 2013, compared to 18.3% of total deposits at December 31, 2012.

The table below presents the Company’s anticipated time deposit repricing over the next four quarters.

TABLE 25 – TIME DEPOSIT REPRICING

(Dollars in thousands)	2Q 2013		3Q 2013		4Q 2013		1Q 2014		Total less than one year
Certificates of deposit	$	344,320	$	318,316	$	311,884	$	250,824	$	1,225,344
Individual retirement accounts		39,129		33,738		35,081		29,440		137,388
Brokered deposits		79,360		60,346		19,922		13,090		172,718
Total time deposits	$	462,809	$	412,400	$	366,887	$	293,354	$	1,535,450

As part of an overall interest rate risk management strategy, derivative instruments may also be used as an efficient way to modify the repricing or maturity characteristics of on-balance sheet assets and liabilities. Management may from time to time engage in interest rate swaps to effectively manage interest rate risk. The interest rate swaps of the Company were executed to modify net interest sensitivity to levels deemed appropriate.

IMPACT OF INFLATION AND CHANGING PRICES

The consolidated financial statements and related financial data presented herein have been prepared in accordance with generally accepted accounting principles, which generally require the measurement of financial position and operating results in terms of historical dollars, without considering changes in relative purchasing power over time due to inflation. Unlike most industrial companies, the majority of the Company’s assets and liabilities are monetary in nature. As a result, interest rates generally have a more significant impact on the Company’s performance than does the effect of inflation. Although fluctuations in interest rates are neither completely predictable nor controllable, the Company regularly monitors its interest rate position and oversees its financial risk management by establishing policies and operating limits. Interest rates do not necessarily move in the same direction or in the same magnitude as the prices of goods and services, since such prices are affected by inflation to a larger extent than interest rates. Although not as critical to the banking industry as to other industries, inflationary factors may have some impact on the Company’s growth, earnings, total assets and capital levels. Management does not expect inflation to be a significant factor in 2013.

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Item 3. Quantitative and Qualitative Disclosures About Market Risk

Quantitative and qualitative disclosures about market risk are presented at December 31, 2012 in Part II, Item 7A of the Company’s Annual Report on Form 10-K, filed with the Securities and Exchange Commission on March 1, 2013. Additional information at March 31, 2013 is included herein under Item 2, “Management’s Discussion and Analysis of Financial Condition and Results of Operations”.

Item 4. Controls and Procedures

An evaluation of the effectiveness of the Company’s disclosure controls and procedures as of March 31, 2013 was carried out under the supervision, and with the participation of, the Chief Executive Officer (“CEO”) and Chief Financial Officer (“CFO”). Based on that evaluation, the CEO and CFO have concluded that the Company’s disclosure controls and procedures are effective in alerting them in a timely manner to material information required to be disclosed by the Company in reports that it files or submits under the Securities Exchange Act of 1934 (the “Exchange Act”).

Disclosure controls and procedures are designed to ensure that information required to be disclosed in reports filed by the Company under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms. Disclosure controls are also designed with the objective of ensuring that such information is accumulated and communicated to the Company’s management, including the CEO and the CFO, as appropriate, to allow timely decisions regarding required disclosures. Disclosure controls include review of internal controls that are designed to provide reasonable assurance that transactions are properly authorized, assets are safeguarded against unauthorized or improper use and transactions are properly recorded and reported. There was no significant change in the Company’s internal controls over financial reporting during the last fiscal quarter that has materially affected, or is reasonably likely to materially affect, the internal control over financial reporting.

Any control system, no matter how well conceived and operated, can provide only reasonable assurance that its objectives are achieved. The design of a control system inherently has limitations, including the controls’ cost relative to their benefits. Additionally, controls can be circumvented. No cost-effective control system can provide absolute assurance that all control issues and instances of fraud, if any, will be detected.

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PART II. OTHER INFORMATION

Item 1. Legal Proceedings

See Note 14 - Commitments and Contingencies of Notes to the Unaudited Consolidated Financial Statements which is incorporated herein by reference.

Item 1A. Risk Factors

The following risk factor contains information concerning factors that could materially affect the Company’s business’ financial condition or future results. The risk factor that is described below and those that are discussed in Item 1A to Part 1 of the Company’s Annual Report on Form 10-K for the year ended December 31, 2012 should be considered carefully in evaluating the Company’s overall risk profile. Additional risks not presently known, or that we currently deem immaterial, also may have a material adverse affect on the Company’s business, financial condition or results of operations.

Our ability to achieve expense reduction and earnings enhancement initiatives may be adversely affected by external factors not within our control.

We are continuing to implement a number of expense reduction and revenue enhancing initiatives that, fully implemented, are currently expected to result in estimated annual incremental run-rate benefits of approximately $20.7 million on a pre-tax basis. While many of the elements necessary to achieve these initiatives are within our control, others such as interest rates and prevailing economic conditions, which influence expenses and revenues, depend on external factors not within our control, and there can be no assurance that such external factors will not materially adversely affect our ability to fully implement and accomplish these initiatives.

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

Not Applicable.

Item 3. Defaults Upon Senior Securities

Not Applicable.

Item 4. Mine Safety Disclosures

Not Applicable.

Item 5. Other Information

None.

Item 6. Exhibits

Exhibit No. 31.1	Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
Exhibit No. 31.2	Certification of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
Exhibit No. 32.1	Certification of Chief Executive Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
Exhibit No. 32.2	Certification of Chief Financial Officer pursuant to Section 906 of the Sarbanes- Oxley Act of 2002.

86

Exhibit No. 101.INS	XBRL Instance Document.
Exhibit No. 101.SCH	XBRL Taxonomy Extension Schema.
Exhibit No. 101.CAL	XBRL Taxonomy Extension Calculation Linkbase.
Exhibit No. 101.DEF	XBRL Taxonomy Extension Definition Linkbase.
Exhibit No. 101.LAB	XBRL Taxonomy Extension Label Linkbase.
Exhibit No. 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.

		IBERIABANK Corporation
Date:	May 10, 2013	By:	/s/ Daryl G. Byrd
		Daryl G. Byrd
		President and Chief Executive Officer
Date:	May 10, 2013	By:	/s/ Anthony J. Restel
		Anthony J. Restel
		Senior Executive Vice President and Chief Financial Officer

88

EX-31.1

Exhibit 31.1

CERTIFICATIONS

SECTION 302 CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER

I, Daryl G. Byrd, President and Chief Executive Officer of IBERIABANK Corporation, certify that:

1. I have reviewed this quarterly report on Form 10-Q of IBERIABANK Corporation;

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(s) 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 the annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer(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 10, 2013	/s/ Daryl G. Byrd
		Daryl G. Byrd
		President and Chief Executive Officer

EX-31.2

Exhibit 31.2

SECTION 302 CERTIFICATION OF CHIEF FINANCIAL OFFICER

I, Anthony J. Restel, Senior Executive Vice President and Chief Financial Officer of IBERIABANK Corporation, certify that:

1. I have reviewed this quarterly report on Form 10-Q of IBERIABANK Corporation;

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(s) 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 the annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer(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 10, 2013	/s/ Anthony J. Restel
		Anthony J. Restel
		Senior Executive Vice President and Chief Financial Officer

EX-32.1

Exhibit 32.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of IBERIABANK Corporation (the “Company”) on Form 10-Q for the period ended March 31, 2013 (the “Report”), I, Daryl G. Byrd, President and Chief Executive Officer of the Company, certify that:

(1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company as of and for the periods covered in the Report.

/s/ Daryl G. Byrd

Daryl G. Byrd

President and Chief Executive Officer

May 10, 2013

A signed original of this written statement required by Section 906 has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request. The information furnished herein shall not be deemed to be filed for purposes of Section 18 of the Securities Exchange Act of 1934, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933.

EX-32.2

Exhibit 32.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of IBERIABANK Corporation (the “Company”) on Form 10-Q for the period ended March 31, 2013 (the “Report”), I, Anthony J. Restel, Senior Executive Vice President and Chief Financial Officer of the Company, certify that:

(1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company as of and for the periods covered in the Report.

/s/ Anthony J. Restel

Anthony J. Restel

Senior Executive Vice President and Chief Financial Officer

May 10, 2013

A signed original of this written statement required by Section 906 has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request. The information furnished herein shall not be deemed to be filed for purposes of Section 18 of the Securities Exchange Act of 1934, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933.

XML

Fair Value of Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2013

Fair Value Disclosures [Abstract]

Estimated Fair Values and Carrying Amounts of Financial Instruments

The estimated fair values and carrying amounts of the Company’s financial instruments are as follows as of the dates indicated:

	March 31, 2013				December 31, 2012
(Dollars in thousands)	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Financial Assets
Cash and cash equivalents	$	626,516	$	626,516	$	970,977	$	970,977
Investment securities		2,149,990		2,154,648		1,950,067		1,956,502
Loans and loans held for sale		8,783,012		8,902,016		8,766,055		8,800,563
FDIC loss share receivable		284,471		126,727		423,069		207,222
Derivative instruments		41,208		41,208		42,119		42,119
Accrued interest receivable		32,707		32,707		32,183		32,183
Financial Liabilities
Deposits	$	10,686,267	$	10,480,000	$	10,748,277	$	10,594,885
Short-term borrowings		294,156		294,156		303,045		303,045
Long-term debt		323,046		286,986		423,377		394,490
Derivative instruments		34,383		34,383		36,890		36,890
Accrued interest payable		6,421		6,421		6,615		6,615

XML

Loans Receivable - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Loans Receivable [Line Items]
Percentage of covered loan loss, covered under loss share agreements	80.00%
Number of acquisitions	4
Deferred loan origination fees	$ 14,082,000		$ 14,040,000
Deferred loan expenses	5,626,000		5,270,000
Deposit liabilities reclassified as loans receivable	2,411,000		3,231,000
Loans with carrying value pledged to secure public deposits and other borrowings	2,262,625,000		1,504,512,000
Valuation allowance against indemnification assets	31,813,000
Income tax expense (benefit)	(4,876,000)	7,134,000
Non-covered troubled debt restructurings modified during the current period	1,545,000	4,061,000
Total TDRs	18,508,000	27,339,000
CSB, Orion and Century [Member]
Loans Receivable [Line Items]
Percentage of covered loan losses that exceeds the contractual threshold, covered under loss share agreements	95.00%
Sterling Bank [Member]
Loans Receivable [Line Items]
Percentage of covered loan losses that exceeds the contractual threshold, covered under loss share agreements	80.00%
Troubled Debt Restructurings [Member]
Loans Receivable [Line Items]
Total TDRs	$ 18,508,000	$ 27,339,000

XML

Investment Securities - Additional Information (Detail) (USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2013 Security	Dec. 31, 2012 Security	Dec. 31, 2011
Schedule of Securities Available-for-sale And Held To Maturity [Line Items]
Pledged securities, carrying values	$ 1,500,441,000	$ 1,712,860,000
Number of debt securities, held	54	49
Unrealized losses on debt securities, percent of amortized cost	0.78%	0.85%
Unrealized losses on debt securities, percent of Company's total amortized cost	0.15%	0.12%
Number of debt securities having unrealized losses	54	49
Number of securities recorded with an aggregate amortized cost	2	3
Number of securities, continuous unrealized loss position, twelve months or longer, fair value	2	3
Available-for-sale securities, amortized cost basis	3,953,000	5,200,000
Unrealized loss on securities	$ 180,000	$ 187,000
Unrated revenue municipal bond		1
Impairment of par value bond, percentage			50.00%
Fannie Mae And Freddie Mac Securities Rated AAA [Member] | Maximum
Schedule of Securities Available-for-sale And Held To Maturity [Line Items]
Number of securities issued	2	3
Fannie Mae And Freddie Mac Securities Rated AAA [Member] | Minimum
Schedule of Securities Available-for-sale And Held To Maturity [Line Items]
Number of securities issued	1	2

XML

Goodwill and Other Acquired Intangible Assets - Schedule of Carrying Amount of Goodwill (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Mar. 31, 2013
Goodwill And Intangible Assets Disclosure [Abstract]
Beginning Balance	$ 369,811	$ 401,872
Goodwill acquired during the Period	32,420
Goodwill adjustment to correct an immaterial error	(359)
Ending Balance	$ 401,872	$ 401,872

XML

Loans Receivable - Schedule of Non-Covered Loans Outstanding (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Loans Receivable [Line Items]
Total non-covered loans receivable	$ 7,590,802	$ 7,405,824
Non-Covered Loans [Member]
Loans Receivable [Line Items]
Total non-covered loans receivable	7,590,802	7,405,824
Non-Covered Loans [Member] | Residential Mortgage Loans [Member]
Loans Receivable [Line Items]
Total non-covered loans receivable	301,289	290,040
Non-Covered Loans [Member] | Residential Mortgage Loans [Member] | Residential 1-4 Family [Member]
Loans Receivable [Line Items]
Total non-covered loans receivable	296,175	284,019
Non-Covered Loans [Member] | Residential Mortgage Loans [Member] | Construction/ Owner Occupied [Member]
Loans Receivable [Line Items]
Total non-covered loans receivable	5,114	6,021
Non-Covered Loans [Member] | Commercial Loans [Member]
Loans Receivable [Line Items]
Total non-covered loans receivable	5,554,683	5,441,367
Non-Covered Loans [Member] | Commercial Loans [Member] | Real Estate [Member]
Loans Receivable [Line Items]
Total non-covered loans receivable	3,020,071	2,990,700
Non-Covered Loans [Member] | Commercial Loans [Member] | Business [Member]
Loans Receivable [Line Items]
Total non-covered loans receivable	2,534,612	2,450,667
Non-Covered Loans [Member] | Consumer And Other Loans [Member]
Loans Receivable [Line Items]
Total non-covered loans receivable	1,734,830	1,674,417
Non-Covered Loans [Member] | Consumer And Other Loans [Member] | Indirect Automobile [Member]
Loans Receivable [Line Items]
Total non-covered loans receivable	342,117	327,985
Non-Covered Loans [Member] | Consumer And Other Loans [Member] | Home Equity [Member]
Loans Receivable [Line Items]
Total non-covered loans receivable	1,092,693	1,076,913
Non-Covered Loans [Member] | Consumer And Other Loans [Member] | Other [Member]
Loans Receivable [Line Items]
Total non-covered loans receivable	$ 300,020	$ 269,519

XML

Derivative Instruments and Other Hedging Activities - Schedule of Derivative Instruments on Consolidated Financial Statements (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Derivative Instruments And Hedging Activities [Line Items]
Amount of Gain (Loss) Recognized in OCI, net of taxes (Effective Portion)	$ 751	$ 1,558
Amount of Gain (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	(424)	(386)
Amount of Gain (Loss) Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)
Amount of Gain (Loss) Recognized in Income on Derivatives	(1)
Not Designated As Hedging Instruments [Member]
Derivative Instruments And Hedging Activities [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivatives	(1,828)	56
Other Income (Expense) [Member] | Interest Rate Contracts [Member] | Not Designated As Hedging Instruments [Member]
Derivative Instruments And Hedging Activities [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivatives	(1)
Mortgage income [Member] | Forward Sale Contracts [Member] | Not Designated As Hedging Instruments [Member]
Derivative Instruments And Hedging Activities [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivatives	(2,912)
Mortgage income [Member] | Written And Purchased Options [Member] | Not Designated As Hedging Instruments [Member]
Derivative Instruments And Hedging Activities [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivatives	1,085	56
Cash Flow Hedging [Member] | Interest Rate Contracts [Member]
Derivative Instruments And Hedging Activities [Line Items]
Amount of Gain (Loss) Recognized in OCI, net of taxes (Effective Portion)	751	1,558
Amount of Gain (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	(424)	(386)
Amount of Gain (Loss) Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)

XML

Disposition Activity - Schedule of Branch Closure Costs (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013
Business Combinations [Abstract]
Employee termination	$ 55
Accelerated depreciation	375
Total	$ 430

XML

Other Real Estate Owned (Tables)

3 Months Ended

Mar. 31, 2013

Banking And Thrift [Abstract]

Schedule of Other Real Estate Owned

Other real estate owned consists of the following at March 31, 2013 and December 31, 2012:

(Dollars in thousands)	March 31, 2013		December 31, 2012
Real estate owned acquired by foreclosure	$	121,262	$	110,864
Real estate acquired for development or resale		9,199		9,199
Other foreclosed property		1,375		1,473
Total other real estate owned and foreclosed property	$	131,836	$	121,536

Schedule of Other Real Estate Owned Segregated Into Covered and Non-Covered Properties

At March 31, 2013 and December 31, 2012, other real estate owned is segregated into covered and non-covered properties as follows:

(Dollars in thousands)
March 31, 2013	Non-covered properties		Covered properties		Total
Real estate owned acquired by foreclosure	$	33,391	$	87,871	$	121,262
Real estate acquired for development or resale		9,199		—		9,199
Other foreclosed property		48		1,327		1,375
Total other real estate owned and foreclosed property	$	42,638	$	89,198	$	131,836

(Dollars in thousands)
December 31, 2012	Non-covered properties		Covered properties		Total
Real estate owned acquired by foreclosure	$	35,080	$	75,784	$	110,864
Real estate acquired for development or resale		9,199		—		9,199
Other foreclosed property		14		1,459		1,473
Total other real estate owned and foreclosed property	$	44,293	$	77,243	$	121,536

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Other Comprehensive Income - Summary of Tax Effects of Each Component of Other Comprehensive Income (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Other Comprehensive Income Loss [Abstract]
Unrealized holding gains (losses) arising during the period, Before-Tax Amount	$ (1,994)	$ (1,056)
Other-than-temporary impairment realized in net income, Before-Tax Amount
Less: reclassification adjustment for (gains) included in net income, Before-Tax Amount	(2,328)	(2,800)
Net unrealized gains (losses), Before-Tax Amount	(4,322)	(3,856)
Change in fair value of derivative instruments designated as cash flow hedges during the period, Before-Tax Amount	2,073	4,951
Less: reclassification adjustment for losses (gains) included in net income, Before-Tax Amount	425	386
Fair value of derivative instruments designated as cash flow hedges, Before-Tax Amount	2,498	5,337
Total other comprehensive income (loss), Before-Tax Amount	(1,824)	1,481
Unrealized holding gains (losses) arising during the period, Tax (Expense) Benefit	698	370
Other-than-temporary impairment realized in net income, Tax (Expense) Benefit
Less: reclassification adjustment for (gains) included in net income, Tax (Expense) Benefit	815	980
Net unrealized gains (losses), Tax (Expense) Benefit	1,513	1,350
Change in fair value of derivative instruments designated as cash flow hedges during the period, Tax (Expense) Benefit	(725)	(1,733)
Less: reclassification adjustment for losses (gains) included in net income, Tax (Expense) Benefit	(149)	(135)
Fair value of derivative instruments designated as cash flow hedges, Tax (Expense) Benefit	(874)	(1,868)
Total other comprehensive income (loss), Tax (Expense) Benefit	639	(518)
Unrealized holding gains (losses) arising during the period, Net-of-Tax Amount	(1,296)	(686)
Other-than-temporary impairment realized in net income, Net-of-Tax Amount
Less: reclassification adjustment for (gains) included in net income, Net-of-Tax Amount	(1,513)	(1,820)
Net unrealized gains (losses), Net-of-Tax Amount	(2,809)	(2,506)
Change in fair value of derivative instruments designated as cash flow hedges during the period, Net-of-Tax Amount	1,348	3,218
Less: reclassification adjustment for losses (gains) included in net income, Net-of-Tax Amount	276	251
Fair value of derivative instruments designated as cash flow hedges, Net-of-Tax Amount	1,624	3,469
Other comprehensive income (loss), net of tax	$ (1,185)	$ 963

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Other Real Estate Owned - Schedule of Other Real Estate Owned (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Other Real Estate [Abstract]
Real estate owned acquired by foreclosure	$ 121,262	$ 110,864
Real estate acquired for development or resale	9,199	9,199
Other foreclosed property	1,375	1,473
Total other real estate owned and foreclosed property	$ 131,836	$ 121,536

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Commitments and Contingencies - Summary of Financial Instruments Outstanding (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Commitments And Contingencies Disclosure [Abstract]
Commitments to grant loans, Contract Amount	$ 329,833	$ 192,295
Unfunded commitments under lines of credit, Contract Amount	2,533,921	2,372,971
Commercial and standby letters of credit, Contract Amount	$ 77,201	$ 62,207

XML

Loans Receivable - Schedule of Non-Covered Loans on Nonaccrual Status (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans on nonaccrual status	$ 46,565	$ 47,916
Residential Mortgage Loans [Member] | Mortgage - Prime [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans on nonaccrual status	8,159	8,367
Residential Mortgage Loans [Member] | Mortgage - Subprime [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans on nonaccrual status
Commercial Loans [Member] | Commercial Real Estate Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans on nonaccrual status	5,939	5,479
Commercial Loans [Member] | Commercial Real Estate - Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans on nonaccrual status	21,995	23,475
Commercial Loans [Member] | Business [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans on nonaccrual status	1,930	3,358
Consumer And Other Loans [Member] | Indirect Automobile [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans on nonaccrual status	982	868
Consumer And Other Loans [Member] | Home Equity [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans on nonaccrual status	6,808	5,635
Consumer And Other Loans [Member] | Credit Card [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans on nonaccrual status	403	424
Consumer And Other Loans [Member] | Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans on nonaccrual status	$ 349	$ 310

XML

Derivative Instruments and Other Hedging Activities - Additional Information (Detail) (USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2013	Dec. 31, 2012
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Cash as collateral for derivative transactions	$ 2,650,000	$ 2,650,000
Fair value of derivatives	$ 563,000

XML

Share-Based Compensation - Schedule of Share and Dividend Equivalent Share Award Activity (Detail) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Number of share equivalents, Beginning Balance	318,729	232,921
Number of share equivalents, Granted	158,213	97,927
Number of share equivalents, Forfeited share equivalents	(5,176)	(2,191)
Number of share equivalents, Vested share equivalents	(30,697)	(5,483)
Number of share equivalents, Ending Balance	441,069	323,174
Dividend equivalents, Beginning Balance	16,035	8,942
Dividend equivalents, Granted	3,092	2,109
Dividend equivalents, Forfeited share equivalents	(243)	(95)
Dividend equivalents, Vested share equivalents	(2,120)	(350)
Dividend equivalents, Ending Balance	16,764	10,606
Total share equivalents, Beginning Balance	334,764	241,863
Total share equivalents, Granted	161,305	100,036
Total share equivalents, Forfeited share equivalents	(5,419)	(2,286)
Total share equivalents, Vested share equivalents	(32,817)	(5,833)
Total share equivalents, Ending Balance	457,833	333,780
Value of share equivalents, Beginning Balance	$ 16,444,000	$ 11,924,000
Value of share equivalents, Granted	8,068,000	5,349,000
Value of share equivalents, Forfeited share equivalents	(271,000)	(122,000)
Value of share equivalents, Vested share equivalents	(1,655,000)	(309,000)
Value of share equivalents, Ending Balance	$ 22,901,000	$ 17,847,000

XML

Share-Based Compensation - Compensation Expense Included in Salaries and Employee Benefits Expense and Related Income Tax Benefits (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Compensation expense related to stock options	$ 533	$ 442
Income tax benefit related to stock options	$ 187	$ 155
Impact on basic earnings per share	$ 0.01	$ 0.01
Impact on diluted earnings per share	$ 0.01	$ 0.01

XML

Share-Based Compensation - Schedule of Share and Dividend Equivalent Share Award Activity (Parenthetical) (Detail) (USD $)	Mar. 31, 2013	Mar. 31, 2012
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Market price of Company's stock	$ 50.02	$ 53.47

XML

Derivative Instruments and Other Hedging Activities - Reconciliation of Gross Amounts in Consolidated Balance Sheet (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Derivative Instruments And Hedging Activities [Line Items]
Derivative assets subject to master netting arrangements, Gross Amounts	$ 34,504	$ 35,202
Derivative liabilities subject to master netting arrangements, Gross Amounts	22,649	27,783
Derivative assets subject to master netting arrangements, Net Amount	34,319	34,703
Derivative liabilities subject to master netting arrangements, Net Amount	10,147	13,934
Derivatives [Member]
Derivative Instruments And Hedging Activities [Line Items]
Derivative assets subject to master netting arrangements, Gross Amounts Not Offset	(185)	(499)
Derivative liabilities subject to master netting arrangements, Gross Amounts Not Offset	(185)	(499)
Collateral [Member]
Derivative Instruments And Hedging Activities [Line Items]
Derivative assets subject to master netting arrangements, Gross Amounts Not Offset
Derivative liabilities subject to master netting arrangements, Gross Amounts Not Offset	(12,317)	(13,350)
Interest Rate Contracts [Member] | Designated As Hedging Instruments [Member]
Derivative Instruments And Hedging Activities [Line Items]
Derivative assets subject to master netting arrangements, Gross Amounts	1,744	499
Derivative liabilities subject to master netting arrangements, Gross Amounts	590	1,843
Derivative assets subject to master netting arrangements, Net Amount	1,559
Derivative liabilities subject to master netting arrangements, Net Amount	405	1,344
Interest Rate Contracts [Member] | Not Designated As Hedging Instruments [Member]
Derivative Instruments And Hedging Activities [Line Items]
Derivative assets subject to master netting arrangements, Gross Amounts	22,058	25,940
Derivative liabilities subject to master netting arrangements, Gross Amounts	22,059	25,940
Derivative assets subject to master netting arrangements, Net Amount	22,058	25,940
Derivative liabilities subject to master netting arrangements, Net Amount	9,742	12,590
Interest Rate Contracts [Member] | Derivatives [Member] | Designated As Hedging Instruments [Member]
Derivative Instruments And Hedging Activities [Line Items]
Derivative assets subject to master netting arrangements, Gross Amounts Not Offset	(185)	(499)
Derivative liabilities subject to master netting arrangements, Gross Amounts Not Offset	(185)	(499)
Interest Rate Contracts [Member] | Derivatives [Member] | Not Designated As Hedging Instruments [Member]
Derivative Instruments And Hedging Activities [Line Items]
Derivative assets subject to master netting arrangements, Gross Amounts Not Offset
Derivative liabilities subject to master netting arrangements, Gross Amounts Not Offset
Interest Rate Contracts [Member] | Collateral [Member] | Designated As Hedging Instruments [Member]
Derivative Instruments And Hedging Activities [Line Items]
Derivative assets subject to master netting arrangements, Gross Amounts Not Offset
Derivative liabilities subject to master netting arrangements, Gross Amounts Not Offset
Interest Rate Contracts [Member] | Collateral [Member] | Not Designated As Hedging Instruments [Member]
Derivative Instruments And Hedging Activities [Line Items]
Derivative assets subject to master netting arrangements, Gross Amounts Not Offset
Derivative liabilities subject to master netting arrangements, Gross Amounts Not Offset	(12,317)	(13,350)
Written And Purchased Options [Member]
Derivative Instruments And Hedging Activities [Line Items]
Derivative assets subject to master netting arrangements, Gross Amounts	10,702	8,763
Derivative assets subject to master netting arrangements, Net Amount	10,702	8,763
Written And Purchased Options [Member] | Derivatives [Member]
Derivative Instruments And Hedging Activities [Line Items]
Derivative assets subject to master netting arrangements, Gross Amounts Not Offset
Written And Purchased Options [Member] | Collateral [Member]
Derivative Instruments And Hedging Activities [Line Items]
Derivative assets subject to master netting arrangements, Gross Amounts Not Offset

XML

Goodwill and Other Acquired Intangible Assets - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2012	Mar. 31, 2013
Goodwill And Intangible Assets Disclosure [Abstract]
Decrease in goodwill	$ 359,000
Impairment of goodwill		9,681,000
Title plant assets	$ 6,722,000	$ 6,722,000

XML

Basis of Presentation (Policies)

3 Months Ended

Mar. 31, 2013

Accounting Policies [Abstract]

Principles of Consolidation

PRINCIPLES OF CONSOLIDATION

The consolidated financial statements include the accounts of IBERIABANK Corporation (the “Company”) and its wholly owned subsidiaries, IBERIABANK, Lenders Title Company (“LTC”), IBERIA Capital Partners LLC (“ICP”), IB Aircraft Holdings, LLC, IBERIA Asset Management Inc. (“IAM”), and IBERIA CDE, LLC (“CDE”). All significant intercompany balances and transactions have been eliminated in consolidation. All normal, recurring adjustments which, in the opinion of management are necessary for a fair presentation of the financial statements, have been included. Certain amounts reported in prior periods have been reclassified to conform to the current period presentation.

Nature of Operations

NATURE OF OPERATIONS

The Company offers commercial and retail banking products and services to customers throughout locations in six states through IBERIABANK. The Company also operates mortgage production offices in twelve states through IBERIABANK Mortgage Company (“IMC”), and offers a full line of title insurance and closing services throughout Arkansas and Louisiana through LTC and its subsidiaries. ICP provides equity research, institutional sales and trading, and corporate finance services. IB Aircraft Holdings, LLC owns a fractional share of an aircraft used by management of the Company and its subsidiaries. IAM provides wealth management and trust services for commercial and private banking clients. CDE is engaged in the purchase of tax credits.

Use of Estimates

USE OF ESTIMATES

The preparation of financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could differ from those estimates. Material estimates that are susceptible to significant change in the near term are the allowance for credit losses, valuation of and accounting for loans covered by loss sharing arrangements with the FDIC and the related loss share receivables, valuation of and accounting for acquired loans, and valuation of goodwill, intangible assets and other purchase accounting adjustments.

Concentration of Credit Risks

CONCENTRATION OF CREDIT RISKS

Most of the Company’s business activity is with customers located within the States of Louisiana, Florida, Arkansas, Alabama, Texas, and Tennessee. The Company’s lending activity is concentrated in its market areas in those states. The Company has emphasized originations of commercial loans and private banking loans, defined as loans to larger consumer clients. Repayments on loans are expected to come from cash flows of the borrower and/or guarantor. Losses on secured loans are limited by the value of the collateral upon default of the borrowers. The Company does not have any significant concentrations to any one industry or customer.

Segments

SEGMENTS

All of the Company’s banking operations are considered by management to be aggregated in one reportable operating segment. Because the overall banking operations comprise substantially all of the consolidated operations and none of the Company’s other subsidiaries, either individually or in the aggregate, meet quantitative materiality thresholds, no separate segment disclosures are presented in these consolidated financial statements. The Company has invested in its financial reporting infrastructure to report financial information associated with performance of lines of business within the banking operating segment. The Company anticipates reporting this information in the second half of 2013.

FDIC Loss Share Receivable

FDIC LOSS SHARE RECEIVABLE

Because the FDIC reimburses the Company for losses on certain loans acquired in 2009 and 2010, indemnification assets were recorded at fair value as of the acquisition dates. The initial values of the indemnification assets were based on estimated cash flows to be received over the expected life of the acquired assets, not to exceed the term of the indemnification agreements. The loss sharing term of Company’s commercial and single family residential indemnification agreements are five year and ten years, respectively, from the date of acquisition.

Because the indemnification assets are measured on the same basis as the indemnified loans, subject to contractual and collectability limitations, the indemnification assets are impacted by changes in expected cash flows on covered loans. Increases in credit losses expected to occur within the loss share term are recorded as current period increases to the allowance for credit losses and increase the indemnification assets by the applicable loss share percentage. Decreases in credit losses expected to occur within loss share term reduce the amount collectible from the FDIC and increase the amount collectible from customers in the form of prospective accretion. Increases in the portion of indemnification asset collectible from customers are amortized to income. Periodic amortization represents that amount that is expected to result in symmetrical recognition of pool-level accretion and amortization over the shorter of 1) the life of the loan or 2) the life of the shared loss agreement.

The Company assesses the indemnification assets for collectability at the acquisition level based on three sources: 1) the FDIC, 2) OREO transactions, and 3) customers. Amounts collectible from the FDIC through loss reimbursements are comprised of losses currently expected within the loss share term. A current period impairment would be recorded to the extent that events or circumstances indicate that losses previously expected to occur within the loss share term are expected to occur subsequent to loss share termination. Amounts collectible through expected gains on the sale of OREO are written-up or impaired each period based on the best available information. Amounts collectible from customers in the form of accretion are deemed collectible to the extent that net acquisition-level yield, which primarily consists of accretion and indemnification asset amortization, are expected to remain positive over the life of the shared loss agreement. Impairment of amounts collectible from customers would be recorded as a current period charge to income, to the extent required to maintain the zero net yield floor.

Loss assumptions used to measure the basis of the indemnified loans are consistent with the loss assumptions used to measure the indemnification assets.

The indemnification asset is reduced and a corresponding claim receivable is established within other assets when a loss is incurred and is subsequently relieved when cash is received from the FDIC.

Fair Value Measurements

FAIR VALUE MEASUREMENTS

The Company estimates fair value based on the assumptions market participants would use when selling an asset or transferring a liability and characterizes such measurements within the fair value hierarchy based on the inputs used to develop those assumptions and measure fair value. The hierarchy requires the Company to maximize the use of observable inputs and minimize the use of unobservable inputs. The three levels of inputs used to measure fair value are as follows:

• Level 1 - Quoted prices in active markets for identical assets or liabilities.

• Level 2 - Observable inputs other than quoted prices included in Level 1, such as quoted prices for similar assets and liabilities in active markets; quoted prices for identical or similar assets and liabilities in markets that are not active; or other inputs that are observable or can be corroborated by observable market data.

• Level 3 - Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. This includes certain pricing models, discounted cash flow methodologies and similar techniques that use significant unobservable inputs.

A description of the valuation methodologies used for instruments measured at fair value follows, as well as the classification of such instruments within the valuation hierarchy.

Investment securities

Securities are classified within Level 1 where quoted market prices are available in an active market. Inputs include securities that have quoted prices in active markets for identical assets. If quoted market prices are unavailable, fair value is estimated using quoted prices of securities with similar characteristics, at which point the securities would be classified within Level 2 of the hierarchy. Examples may include certain collateralized mortgage and debt obligations.

Mortgage loans held for sale

As of March 31, 2013, the Company has $188,037,000 of conforming mortgage loans held for sale. Mortgage loans originated and held for sale are carried at the lower of cost or estimated fair value. The Company obtains quotes or bids on these loans directly from purchasing financial institutions. Mortgage loans held for sale that were recorded at estimated fair value would be classified within Level 2 of the hierarchy and are included in the table in Note 15.

Impaired loans

Loans are measured for impairment using the methods permitted by Accounting Standards Codification (“ASC”) Topic 310. Fair value measurements are used in determining impairment using either the loan’s obtainable market price, if available (Level 1) or the fair value of the collateral if the loan is collateral dependent (Level 2). Measuring the impairment of loans using the present value of expected future cash flows, discounted at the loan’s effective interest rate, is not considered a fair value measurement. Fair value of the collateral is determined by appraisals or independent valuation.

Other real estate owned

Fair values of OREO at March 31, 2013 are determined by sales agreement or appraisal, and costs to sell are based on estimation per the terms and conditions of the sales agreement or amounts commonly used in real estate transactions. Inputs include appraisal values on the properties or recent sales activity for similar assets in the property’s market, and thus OREO measured at fair value would be classified within Level 2 of the hierarchy. The Company included property write-downs of $1,154,000 and $2,556,000 in earnings for the three months ended March 31, 2013 and 2012, respectively.

Derivative financial instruments

The Company utilizes interest rate swap agreements to convert a portion of its variable-rate debt to a fixed rate (cash flow hedge). The Company also enters into commitments to originate loans whereby the interest rate on the prospective loan is determined prior to funding (“rate lock commitments”). Rate lock commitments on mortgage loans that are intended to be sold are considered to be derivatives. The Company offers its customers a certificate of deposit that provides the purchaser a guaranteed return of principal at maturity plus potential return, which allows the Company to identify a known cost of funds. The rate of return is based on an equity index, and as such represents an embedded derivative. Fair value of interest rate swaps, interest rate lock commitments, and equity-linked written and purchased options are estimated using prices of financial instruments with similar characteristics, and thus are classified within Level 2 of the fair value hierarchy.

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Investment Securities - Schedule of Amortized Cost and Estimated Fair Value by Maturity of Investment Securities (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013
Investments Debt And Equity Securities [Abstract]
Securities Available for Sale, Weighted Average Yield, Within one year or less	0.12%
Securities Available for Sale, Weighted Average Yield, One through five years	1.34%
Securities Available for Sale, Weighted Average Yield, After five through ten years	1.90%
Securities Available for Sale, Weighted Average Yield, Over ten years	1.75%
Securities Available for Sale, Weighted Average Yield, Totals	1.68%
Securities Available for Sale, Amortized Cost, Within one year or less	$ 78,131
Securities Available for Sale, Amortized Cost, One through five years	231,579
Securities Available for Sale, Amortized Cost, After five through ten years	593,060
Securities Available for Sale, Amortized Cost, Over ten years	1,014,975
Securities Available for Sale, Amortized Cost, Totals	1,917,745
Securities Available for Sale, Fair Value, Within one year or less	78,219
Securities Available for Sale, Fair Value, One through five years	234,222
Securities Available for Sale, Fair Value, After five through ten years	606,763
Securities Available for Sale, Fair Value, Over ten years	1,032,344
Securities Available for Sale, Fair Value, Totals	1,951,548
Securities Held to Maturity, Weighted Average Yield, Within one year or less	1.77%
Securities Held to Maturity, Weighted Average Yield, One through five years	2.00%
Securities Held to Maturity, Weighted Average Yield, After five through ten years	2.53%
Securities Held to Maturity, Weighted Average Yield, Over ten years	2.91%
Securities Held to Maturity, Weighted Average Yield, Totals	2.48%
Securities Held to Maturity, Amortized Cost, Within one year or less	21,425
Securities Held to Maturity, Amortized Cost, One through five years	56,171
Securities Held to Maturity, Amortized Cost, After five through ten years	23,073
Securities Held to Maturity, Amortized Cost, Over ten years	97,773
Securities Held to Maturity, Amortized Cost, Totals	198,442
Securities Held to Maturity, Fair Value, Within one year or less	21,507
Securities Held to Maturity, Fair Value, One through five years	57,395
Securities Held to Maturity, Fair Value, After five through ten years	24,182
Securities Held to Maturity, Fair Value, Over ten years	100,016
Securities Held to Maturity, Fair Value, Totals	$ 203,100

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Earnings Per Share - Schedule of Calculation of Basic and Diluted Earnings Per Share (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Earnings Per Share, Basic And Diluted, By Common Class, Including Two Class Method [Line Items]
Income available to common shareholders	$ 717	$ 19,393
Distributed earnings (distributed capital) to common shareholders - Basic	703	19,019
Distributed and undistributed earnings to common shareholders - Diluted	697	19,029
Weighted average shares outstanding - Basic	29,502,711	29,384,220
Weighted average shares outstanding - Diluted	28,979,168	28,928,276
Earnings per common share - Basic	$ 0.02	$ 0.66
Earnings per common share - Diluted	$ 0.02	$ 0.66
Unvested restricted stock [Member]
Earnings Per Share, Basic And Diluted, By Common Class, Including Two Class Method [Line Items]
Distributed earnings (distributed capital) to unvested restricted stock	(14)	(374)
Undistributed earnings reallocated to unvested restricted stock	$ (6)	$ 10
Earnings per common share - Basic	$ 0.03	$ 0.70
Earnings per common share - Diluted	$ 0.04	$ 0.68

XML

Derivative Instruments and Other Hedging Activities - Schedule of Outstanding Derivative Instruments (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Derivative Instruments And Hedging Activities [Line Items]
Derivative Asset, Fair Value	$ 34,504	$ 35,202
Derivative Liability, Fair Value	22,649	27,783
Designated As Hedging Instruments [Member]
Derivative Instruments And Hedging Activities [Line Items]
Derivative Asset, Notional Amount	35,000	35,000
Derivative Liability, Notional Amount	35,000	35,000
Not Designated As Hedging Instruments [Member]
Derivative Instruments And Hedging Activities [Line Items]
Derivative Asset, Notional Amount	862,005	975,357
Derivative Liability, Notional Amount	672,664	613,690
Other Assets [Member] | Designated As Hedging Instruments [Member]
Derivative Instruments And Hedging Activities [Line Items]
Derivative Asset, Fair Value	1,744	499
Other Assets [Member] | Not Designated As Hedging Instruments [Member]
Derivative Instruments And Hedging Activities [Line Items]
Derivative Asset, Fair Value	39,464	41,620
Other Liabilities [Member] | Designated As Hedging Instruments [Member]
Derivative Instruments And Hedging Activities [Line Items]
Derivative Liability, Fair Value	590	1,843
Other Liabilities [Member] | Not Designated As Hedging Instruments [Member]
Derivative Instruments And Hedging Activities [Line Items]
Derivative Liability, Fair Value	33,582	35,047
Interest Rate Contracts [Member] | Designated As Hedging Instruments [Member]
Derivative Instruments And Hedging Activities [Line Items]
Derivative Asset, Notional Amount	35,000	35,000
Derivative Liability, Notional Amount	35,000	35,000
Interest Rate Contracts [Member] | Not Designated As Hedging Instruments [Member]
Derivative Instruments And Hedging Activities [Line Items]
Derivative Asset, Notional Amount	361,679	374,536
Derivative Liability, Notional Amount	361,679	374,536
Interest Rate Contracts [Member] | Other Assets [Member] | Designated As Hedging Instruments [Member]
Derivative Instruments And Hedging Activities [Line Items]
Derivative Asset, Fair Value	1,744	499
Interest Rate Contracts [Member] | Other Assets [Member] | Not Designated As Hedging Instruments [Member]
Derivative Instruments And Hedging Activities [Line Items]
Derivative Asset, Fair Value	22,058	25,940
Interest Rate Contracts [Member] | Other Liabilities [Member] | Designated As Hedging Instruments [Member]
Derivative Instruments And Hedging Activities [Line Items]
Derivative Liability, Fair Value	590	1,843
Interest Rate Contracts [Member] | Other Liabilities [Member] | Not Designated As Hedging Instruments [Member]
Derivative Instruments And Hedging Activities [Line Items]
Derivative Liability, Fair Value	22,059	25,940
Forward Sale Contracts [Member] | Not Designated As Hedging Instruments [Member]
Derivative Instruments And Hedging Activities [Line Items]
Derivative Asset, Notional Amount	66,247	212,028
Derivative Liability, Notional Amount	116,609	53,269
Forward Sale Contracts [Member] | Other Assets [Member] | Not Designated As Hedging Instruments [Member]
Derivative Instruments And Hedging Activities [Line Items]
Derivative Asset, Fair Value	593	2,774
Forward Sale Contracts [Member] | Other Liabilities [Member] | Not Designated As Hedging Instruments [Member]
Derivative Instruments And Hedging Activities [Line Items]
Derivative Liability, Fair Value	774	343
Written And Purchased Options [Member] | Not Designated As Hedging Instruments [Member]
Derivative Instruments And Hedging Activities [Line Items]
Derivative Asset, Notional Amount	434,079	388,793
Derivative Liability, Notional Amount	194,376	185,885
Written And Purchased Options [Member] | Other Assets [Member] | Not Designated As Hedging Instruments [Member]
Derivative Instruments And Hedging Activities [Line Items]
Derivative Asset, Fair Value	16,813	12,906
Written And Purchased Options [Member] | Other Liabilities [Member] | Not Designated As Hedging Instruments [Member]
Derivative Instruments And Hedging Activities [Line Items]
Derivative Liability, Fair Value	$ 10,749	$ 8,764

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Commitments and Contingencies (Tables)

3 Months Ended

Mar. 31, 2013

Commitments And Contingencies Disclosure [Abstract]

Summary of Financial Instruments Outstanding

At March 31, 2013 and December 31, 2012, the Company had the following financial instruments outstanding, whose contract amounts represent credit risk:

	Contract Amount
(Dollars in thousands)	March 31, 2013		December 31, 2012
Commitments to grant loans	$	329,833	$	192,295
Unfunded commitments under lines of credit		2,533,921		2,372,971
Commercial and standby letters of credit		77,201		62,207

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Investment Securities - Schedule of Securities in Other Assets on Company's Consolidated Balance Sheets (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Schedule of Trading Securities and Other Trading Assets [Line Items]
Federal Home Loan Bank (FHLB) stock	$ 10,404	$ 16,860
Federal Reserve Bank (FRB) stock	28,155	28,155
Other investments	406	302
Total equity securities	39,864	46,216
First National Bankers Bankshares Inc [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
First National Bankers Bankshares, Inc. (FNBB) stock	$ 899	$ 899

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Allowance for Credit Losses and Credit Quality - Schedule of Investment in Impaired Loan (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Commercial Loans [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	$ 32,423		$ 32,773
Unpaid Principal Balance	32,574		33,448
Related Allowance	(151)		(675)
Average Recorded Investment	34,148	43,440
Interest Income Recognized	59	33
Commercial Loans [Member] | With No Related Allowance Recorded [Member] | Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	29,043		26,151
Unpaid Principal Balance	29,043		26,151
Related Allowance
Average Recorded Investment	30,510	32,007
Interest Income Recognized	28
Commercial Loans [Member] | With No Related Allowance Recorded [Member] | Business [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	2,926		1,824
Unpaid Principal Balance	2,926		1,824
Related Allowance
Average Recorded Investment	3,030	6,530
Interest Income Recognized	24
Commercial Loans [Member] | With An Allowance Recorded [Member] | Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	145		3,464
Unpaid Principal Balance	156		3,663
Related Allowance	(11)		(199)
Average Recorded Investment	157	4,657
Interest Income Recognized	2	32
Commercial Loans [Member] | With An Allowance Recorded [Member] | Business [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	309		1,334
Unpaid Principal Balance	449		1,810
Related Allowance	(140)		(476)
Average Recorded Investment	451	246
Interest Income Recognized	5	1
Mortgage Loans [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	9,037		9,861
Unpaid Principal Balance	9,216		10,070
Related Allowance	(179)		(209)
Average Recorded Investment	9,213	5,389
Interest Income Recognized
Mortgage Loans [Member] | With An Allowance Recorded [Member] | Mortgage - Prime [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	9,037		9,861
Unpaid Principal Balance	9,216		10,070
Related Allowance	(179)		(209)
Average Recorded Investment	9,213	5,389
Interest Income Recognized
Mortgage Loans [Member] | With An Allowance Recorded [Member] | Mortgage - Subprime [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment
Unpaid Principal Balance
Related Allowance
Average Recorded Investment
Interest Income Recognized
Consumer Loans [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	9,061		7,445
Unpaid Principal Balance	9,168		7,553
Related Allowance	(107)		(108)
Average Recorded Investment	9,079	8,608
Interest Income Recognized
Consumer Loans [Member] | With An Allowance Recorded [Member] | Indirect Automobile [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	978		865
Unpaid Principal Balance	982		868
Related Allowance	(4)		(3)
Average Recorded Investment	1,267	862
Interest Income Recognized
Consumer Loans [Member] | With An Allowance Recorded [Member] | Credit Card [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	394		413
Unpaid Principal Balance	403		424
Related Allowance	(9)		(11)
Average Recorded Investment	405	423
Interest Income Recognized
Consumer Loans [Member] | With An Allowance Recorded [Member] | Home Equity [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	7,343		5,860
Unpaid Principal Balance	7,434		5,951
Related Allowance	(91)		(91)
Average Recorded Investment	6,910	6,575
Interest Income Recognized
Consumer Loans [Member] | With An Allowance Recorded [Member] | Other [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	346		307
Unpaid Principal Balance	349		310
Related Allowance	(3)		(3)
Average Recorded Investment	497	748
Interest Income Recognized

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Loans Receivable - Schedule of Troubled Debt Restructurings (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Loans Receivable [Line Items]
Accruing Loans, Current	$ 2,123	$ 676
Accruing Loans, Past Due Greater than 30 Days	207
Nonaccrual TDRs	16,178	26,663
Total TDRs	18,508	27,339
Residential Mortgage Loans [Member] | Mortgage - Prime [Member]
Loans Receivable [Line Items]
Accruing Loans, Current
Accruing Loans, Past Due Greater than 30 Days
Nonaccrual TDRs
Total TDRs
Commercial Loans [Member] | Real Estate [Member]
Loans Receivable [Line Items]
Accruing Loans, Current	843	650
Accruing Loans, Past Due Greater than 30 Days	207
Nonaccrual TDRs	15,677	24,477
Total TDRs	16,727	25,127
Commercial Loans [Member] | Business [Member]
Loans Receivable [Line Items]
Accruing Loans, Current	1,188	26
Accruing Loans, Past Due Greater than 30 Days
Nonaccrual TDRs	281	1,957
Total TDRs	1,469	1,983
Consumer And Other Loans [Member] | Indirect Automobile [Member]
Loans Receivable [Line Items]
Accruing Loans, Current
Accruing Loans, Past Due Greater than 30 Days
Nonaccrual TDRs
Total TDRs
Consumer And Other Loans [Member] | Home Equity [Member]
Loans Receivable [Line Items]
Accruing Loans, Current	92
Accruing Loans, Past Due Greater than 30 Days
Nonaccrual TDRs	220	229
Total TDRs	312	229
Consumer And Other Loans [Member] | Credit Card [Member]
Loans Receivable [Line Items]
Accruing Loans, Current
Accruing Loans, Past Due Greater than 30 Days
Nonaccrual TDRs
Total TDRs
Consumer And Other Loans [Member] | Other [Member]
Loans Receivable [Line Items]
Accruing Loans, Current
Accruing Loans, Past Due Greater than 30 Days
Nonaccrual TDRs
Total TDRs

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Investment Securities - Schedule of Amortized Cost and Fair Values of Investment Securities, with Gross Unrealized Gains and Losses (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Schedule of Securities Available-for-sale And Held To Maturity [Line Items]
Securities held to maturity, Amortized Cost	$ 198,442	$ 205,062
Securities held to maturity, Gross Unrealized Gains	5,336	6,702
Securities held to maturity, Gross Unrealized Losses	(678)	(266)
Securities held to maturity, Estimated Fair Value	203,100	211,498
Securities available for sale, Amortized Cost	1,917,745	1,706,916
Securities available for sale, Gross Unrealized Gains	36,133	40,134
Securities available for sale, Gross Unrealized Losses	(2,330)	(2,046)
Securities available for sale, Estimated Fair Value	1,951,548	1,745,004
U.S. Government-sponsored enterprise obligations [Member]
Schedule of Securities Available-for-sale And Held To Maturity [Line Items]
Securities held to maturity, Amortized Cost	69,951	69,949
Securities held to maturity, Gross Unrealized Gains	1,016	1,244
Securities held to maturity, Gross Unrealized Losses
Securities held to maturity, Estimated Fair Value	70,967	71,193
Securities available for sale, Amortized Cost	526,440	281,746
Securities available for sale, Gross Unrealized Gains	4,698	4,364
Securities available for sale, Gross Unrealized Losses	(298)	(386)
Securities available for sale, Estimated Fair Value	530,840	285,724
Obligations of state and political subdivisions [Member]
Schedule of Securities Available-for-sale And Held To Maturity [Line Items]
Securities held to maturity, Amortized Cost	85,723	88,909
Securities held to maturity, Gross Unrealized Gains	3,867	4,730
Securities held to maturity, Gross Unrealized Losses	(232)	(113)
Securities held to maturity, Estimated Fair Value	89,358	93,526
Securities available for sale, Amortized Cost	117,199	120,680
Securities available for sale, Gross Unrealized Gains	5,826	6,573
Securities available for sale, Gross Unrealized Losses	(179)	(178)
Securities available for sale, Estimated Fair Value	122,846	127,075
Mortgage backed securities [Member]
Schedule of Securities Available-for-sale And Held To Maturity [Line Items]
Securities held to maturity, Amortized Cost	42,768	46,204
Securities held to maturity, Gross Unrealized Gains	453	728
Securities held to maturity, Gross Unrealized Losses	(446)	(153)
Securities held to maturity, Estimated Fair Value	42,775	46,779
Securities available for sale, Amortized Cost	1,272,646	1,303,030
Securities available for sale, Gross Unrealized Gains	25,531	29,108
Securities available for sale, Gross Unrealized Losses	(1,853)	(1,482)
Securities available for sale, Estimated Fair Value	1,296,324	1,330,656
Other Securities [Member]
Schedule of Securities Available-for-sale And Held To Maturity [Line Items]
Securities available for sale, Amortized Cost	1,460	1,460
Securities available for sale, Gross Unrealized Gains	78	89
Securities available for sale, Gross Unrealized Losses
Securities available for sale, Estimated Fair Value	$ 1,538	$ 1,549

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Recent Accounting Pronouncements

3 Months Ended

Mar. 31, 2013

Accounting Changes And Error Corrections [Abstract]

Recent Accounting Pronouncements

NOTE 2 – RECENT ACCOUNTING PRONOUNCEMENTS

ASU No. 2012-06

For the quarter ended March 31, 2013, the Company adopted the provisions of ASU No. 2012-06, Business Combinations (Topic 805): Subsequent Accounting for an Indemnification Asset Recognized at the Acquisition Date as a Result of a Government-Assisted Acquisition of a Financial Institution, which clarifies the applicable guidance for subsequently measuring an indemnification asset recognized in a government-assisted acquisition of a financial institution that includes a loss-sharing agreement. The ASU addresses the diversity in practice regarding interpretation of the terms “on the same basis” and “contractual limitations” referred to by the applicable accounting guidance. Accounting principles require that an indemnification asset recognized at the acquisition date as a result of a government-assisted acquisition of a financial institution involving an indemnification agreement shall be subsequently measured on the same basis as the indemnified item. The provisions of ASU No. 2012-06 clarify that, upon subsequent remeasurement of an indemnification asset, the effect of the change in expected cash flows of the indemnification agreement shall be amortized. Any amortization of changes in value is limited to the lesser of the contractual term of the indemnification agreement or the remaining life of the indemnified assets. The ASU also clarifies that the pool level is the appropriate unit of account for determining the life of the indemnified loans. The ASU is to be applied prospectively and does not affect the guidance relating to the recognition or initial measurement of an indemnification asset.

Application of the ASU’s provisions on a disaggregated basis had the effect of reducing the remaining period over which the indemnification assets will be amortized. As a result of the shortened amortization period, and based on current cash flow expectations and other assumptions, the Company’s indemnification asset amortization increased amortization expense in the three-month period ended March 31, 2013 by $5,453,000, however, the change in amortization period did not have a material impact on its financial position and liquidity. Adoption of the ASU also requires the Company to assess the indemnification assets for collectability on a standalone basis. Prior to adoption, the Company assessed collectability of the indemnification asset and the covered loans on a linked basis. The transition in collectability assessment methodology did not have an impact of the Company’s consolidated financial statements for the quarter ended March 31, 2013. However, future changes in cash flow expectations and/or other assumptions could result in indemnification asset impairment.

ASU No. 2013-02

In 2013, the Company adopted the provisions of ASU No. 2013-06, Comprehensive Income (Topic 220): Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income, which requires the Company to report the effect of significant reclassifications out of accumulated other comprehensive income on the respective line items in net income on the Company’s consolidated statement of comprehensive income if the amount being reclassified is required under US GAAP to be reclassified in its entirety to net income. The ASU does not change the current requirements for reporting net income or other comprehensive income in the consolidated financial statements of the Company, but does require the Company to provide information about the amounts reclassified out of accumulated other comprehensive income by component.

The adoption of the ASU affects the format and presentation of the Company’s consolidated financial statements and the footnotes to the consolidated financial statements, but does not represent a departure from accounting principles previously applied and thus the adoption did not have an effect on the Company’s operating results, financial position, or liquidity. The information required to be presented or disclosed by this ASU is incorporated in the Company’s statements of comprehensive income and Note 12 in these unaudited consolidated financial statements.

ASU No. 2011-11 and ASU No. 2013-01

For the quarter ended March 31, 2013, the Company adopted the provisions of ASU No. 2011-11, Balance Sheet (Topic 210): Disclosures about Offsetting Assets and Liabilities, which requires an entity to disclose gross and net information about certain instruments and transactions eligible for offset in the statement of financial position and instruments and certain transactions subject to an agreement similar to a master netting arrangement. The Company also adopted ASU No. 2013-01, Balance Sheet (Topic 210): Clarifying the Scope of Disclosures about Offsetting Assets and Liabilities, which clarifies the scope of ASU 2011-11. Because the guidance provided by the ASU’s is disclosure related, adoption did not impact the Company’s consolidated financial statements. The adoption resulted in additional disclosures incorporated in Note 11 of these unaudited financial statements.

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Loans Receivable - Schedule of Modified TDRs (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Receivables [Abstract]
Extended maturities		$ 441
Interest rate adjustment		489
Maturity and interest rate adjustment	1,545	2,509
Movement to or extension of interest-rate only payments		622
Forbearance
Covenant modifications
Other concession(s)
Total	$ 1,545	$ 4,061

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Earnings Per Share - Schedule of Calculation of Basic and Diluted Earnings Per Share (Parenthetical) (Detail)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Earnings Per Share [Abstract]
Weighted average basic shares outstanding, unvested restricted stock	564,543	535,005

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Loans Receivable (Tables)

3 Months Ended

Mar. 31, 2013

Schedule of Loans Receivable

Loans receivable at March 31, 2013 and December 31, 2012 consist of the following:

(Dollars in thousands)	March 31, 2013		December 31, 2012
Residential mortgage loans:
Residential 1-4 family	$	473,503	$	471,183
Construction/ Owner Occupied		5,114		6,021
Total residential mortgage loans		478,617		477,204
Commercial loans:
Real estate		3,587,692		3,631,543
Business		2,621,644		2,537,718
Total commercial loans		6,209,336		6,169,261
Consumer and other loans:
Indirect automobile		342,117		327,985
Home equity		1,261,171		1,251,125
Other		303,734		273,005
Total consumer and other loans		1,907,022		1,852,115
Total loans receivable	$	8,594,975	$	8,498,580

Schedule of Non-Covered Loans Outstanding

The following is a summary of the major categories of non-covered loans outstanding as of March 31, 2013 and December 31, 2012:

(Dollars in thousands)	March 31, 2013		December 31, 2012
Non-covered Loans:
Residential mortgage loans:
Residential 1-4 family	$	296,175	$	284,019
Construction/ Owner Occupied		5,114		6,021
Total residential mortgage loans		301,289		290,040
Commercial loans:
Real estate		3,020,071		2,990,700
Business		2,534,612		2,450,667
Total commercial loans		5,554,683		5,441,367
Consumer and other loans:
Indirect automobile		342,117		327,985
Home equity		1,092,693		1,076,913
Other		300,020		269,519
Total consumer and other loans		1,734,830		1,674,417
Total non-covered loans receivable	$	7,590,802	$	7,405,824

Schedule of Non-Covered Loans on Nonaccrual Status

The following table provides the recorded investment of non-covered loans on nonaccrual status at March 31, 2013 and December 31, 2012. Nonaccrual loans in the table exclude loans acquired.

(Dollars in thousands)
	March 31, 2013		December 31, 2012
Residential
Prime	$	8,159	$	8,367
Subprime		—		—
Commercial
Real Estate - Construction		5,939		5,479
Real Estate - Other		21,995		23,475
Business		1,930		3,358
Consumer and Other
Indirect Automobile		982		868
Home Equity		6,808		5,635
Credit Card		403		424
Other		349		310
Total	$	46,565	$	47,916

Schedule of Carrying Amount of Acquired Covered Loans

The carrying amount of the acquired covered loans at March 31, 2013 and December 31, 2012 consisted of loans determined to be impaired at the time of acquisition, which are accounted for in accordance with ASC Topic 310-30, and loans that were considered to be performing at the acquisition date, accounted for by analogy to ASC Topic 310-30, as detailed in the following tables.

(Dollars in thousands)	March 31, 2013
Covered loans	Acquired Impaired Loans		Acquired Performing Loans		Total Covered Loans
Residential mortgage loans:
Residential 1-4 family	$	18,388	$	158,940	$	177,328
Total residential mortgage loans		18,388		158,940		177,328
Commercial loans:
Real estate		146,932		420,689		567,621
Business		2,832		84,200		87,032
Total commercial loans		149,764		504,889		654,653
Consumer and other loans:
Home equity		21,917		146,561		168,478
Other		768		2,946		3,714
Total consumer and other loans		22,685		149,507		172,192
Total covered loans receivable	$	190,837	$	813,336	$	1,004,173

(Dollars in thousands)	December 31, 2012
Covered loans	Acquired Impaired Loans		Acquired Performing Loans		Total Covered Loans
Residential mortgage loans:
Residential 1-4 family	$	20,232	$	166,932	$	187,164
Total residential mortgage loans		20,232		166,932		187,164
Commercial loans:
Real estate		167,742		473,101		640,843
Business		2,757		84,294		87,051
Total commercial loans		170,499		557,395		727,894
Consumer and other loans:
Home equity		22,094		152,117		174,211
Other		820		2,667		3,487
Total consumer and other loans		22,914		154,784		177,698
Total covered loans receivable	$	213,645	$	879,111	$	1,092,756

Schedule of FDIC Loss Share Receivable

The following is a summary of the year-to-date activity in the FDIC loss share receivable for the periods indicated.

(Dollars in thousands)	Three Months Ended March 31,
	2013			2012
Balance, beginning of period	$	423,069		$	591,844
Change due to (reversal of) credit loss provision recorded on FDIC covered loans		(45,414	)		684
Amortization		(27,702	)		(27,927	)
Submission of reimbursable losses to the FDIC		(30,491	)		(28,418	)
Impairment		(31,813	)		—
Changes due to a change in cash flow assumptions on OREO		(3,178	)		1,265
Balance, end of period	$	284,471		$	537,448

Summary of Changes in Accretable Yields of Acquired Loans

The Company acquired loans (both covered and non-covered) through previous acquisitions which are subject to ASC Topic 310-30.

The following is a summary of changes in the accretable yields of acquired loans during the three months ended March 31, 2013 and 2012.

(Dollars in thousands)
March 31, 2013	Acquired Impaired Loans			Acquired Performing Loans			Total Acquired Loan Portfolio
Balance, beginning of period	$	76,623		$	279,770		$	356,393
Transfers from nonaccretable difference to accretable yield		2,042			16,480			18,522
Accretion		(6,499	)		(45,281	)		(51,780	)
Changes in expected cash flows not affecting nonaccretable differences(1)		8,973			64,500			73,473
Balance, end of period	$	81,139		$	315,469		$	396,608

(Dollars in thousands)
March 31, 2012	Acquired Impaired Loans			Acquired Performing Loans			Total Acquired Loan Portfolio
Balance, beginning of period	$	83,834		$	386,977		$	470,811
Transfers from nonaccretable difference to accretable yield		943			3,437			4,380
Changes in expected cash flows not affecting nonaccretable difference(1)		(3,014	)		23,769			20,755
Accretion		(6,275	)		(55,697	)		(61,972	)
Balance, end of period	$	75,488		$	358,486		$	433,974

(1) Includes changes in cash flows expected to be collected due to the impact of changes in actual or expected timing of liquidation events, loan modifications, changes in interest rates and changes in prepayment assumptions.

Schedule of Troubled Debt Restructurings

Information about the Company’s TDRs at March 31, 2013 and 2012 is presented in the following tables.  

	Total TDRs
(Dollars in thousands)	Accruing Loans
	Current		Past Due Greater than 30 Days		Nonaccrual TDRs		Total TDRs
March 31, 2013
Residential
Prime	$	—	$	—	$	—	$	—
Commercial
Real Estate		843		207		15,677		16,727
Business		1,188		—		281		1,469
Consumer and Other
Indirect Automobile		—		—		—		—
Home Equity		92		—		220		312
Credit Card		—		—		—		—
Other		—		—		—		—
Total	$	2,123	$	207	$	16,178	$	18,508
March 31, 2012
Residential
Prime	$	—	$	—	$	—	$	—
Commercial
Real Estate		650		—		24,477		25,127
Business		26		—		1,957		1,983
Consumer and Other
Indirect Automobile		—		—		—		—
Home Equity		—		—		229		229
Credit Card		—		—		—		—
Other		—		—		—		—
Total	$	676	$	—	$	26,663	$	27,339

Schedule of Modified TDRs

The following table provides information on how the TDRs were modified during the three months ended March 31, 2013 and 2012.

(Dollars in thousands)	2013		2012
Extended maturities	$	—	$	441
Interest rate adjustment		—		489
Maturity and interest rate adjustment		1,545		2,509
Movement to or extension of interest-rate only payments		—		622
Forbearance		—		—
Covenant modifications		—		—
Other concession(s)(1)		—		—
Total	$	1,545	$	4,061

(1) Other concessions include concessions or a combination of concessions that do not consist of maturity extensions, interest rate adjustments, forbearance, and covenant modifications.

Non-Covered Acquired Loans [Member]

Schedule of Aging of Non-Covered Loans

The following tables provide an analysis of the aging of non-covered loans as of March 31, 2013 and December 31, 2012.

	Non-covered loans excluding acquired loans
(Dollars in thousands)
	Past Due(1)
March 31, 2013	30-59 days		60-89 days		Greater than 90 days		Total past due		Current		Total non- covered loans, net of unearned income		Recorded investment > 90 days and accruing
Residential
Prime	$	876	$	1,570	$	9,425	$	11,871	$	176,807	$	188,678	$	1,266
Subprime		—		7		—		7		88,799		88,806		—
Commercial
Real Estate - Construction		224		—		5,939		6,163		322,703		328,866		—
Real Estate - Other		1,141		266		22,514		23,921		2,247,219		2,271,140		519
Commercial Business		550		386		1,937		2,873		2,464,508		2,467,381		7
Consumer and Other
Indirect Automobile		1,068		186		982		2,236		335,953		338,189		—
Home Equity		882		705		6,966		8,553		1,016,663		1,025,216		158
Credit Card		158		93		403		654		50,169		50,823		—
Other		261		135		349		745		231,139		231,884		—
Total	$	5,160	$	3,348	$	48,515	$	57,023	$	6,933,960	$	6,990,983	$	1,950

	Non-covered loans excluding acquired loans
(Dollars in thousands)
	Past Due(1)
December 31, 2012	30-59 days		60-89 days		Greater than 90 days		Total past due		Current		Total non- covered loans, net of unearned income		Recorded investment > 90 days and accruing
Residential
Prime	$	662	$	1,156	$	9,168	$	10,986	$	185,843	$	196,829	$	801
Subprime		—		—		—		—		60,454		60,454		—
Commercial
Real Estate - Construction		60		—		5,479		5,539		288,137		293,676		—
Real Estate - Other		3,590		—		23,559		27,149		2,224,495		2,251,644		83
Commercial Business		1,430		13		3,687		5,130		2,362,304		2,367,434		329
Consumer and Other
Indirect Automobile		1,624		326		868		2,818		320,148		322,966		—
Home Equity		2,283		796		5,793		8,872		991,766		1,000,638		158
Credit Card		130		51		424		605		51,117		51,722		—
Other		566		105		310		981		201,161		202,142		—
Total	$	10,345	$	2,447	$	49,288	$	62,080	$	6,685,425	$	6,747,505	$	1,371

(1) Past due loans include loans on nonaccrual status as of the period indicated. Nonaccrual loans are presented separately in the “Nonaccrual Loans” section below.

Non-Covered Loans Excluding Acquired Loans [Member]

Schedule of Aging of Non-Covered Loans

The following tables provide an analysis of the aging of non-covered loans as of March 31, 2013 and December 31, 2012.

(Dollars in thousands)	Non-covered acquired loans
	Past Due(1)
March 31, 2013	30-59 days		60-89 days		Greater than 90 days		Total past due		Current		Discount			Total non- covered loans, net of unearned income		Recorded investment > 90 days and accruing(1)
Residential
Prime	$	—	$	—	$	779	$	779	$	24,228	$	(1,202	)	$	23,805	$	779
Subprime		—		—		—		—		—		—			—		—
Commercial
Real Estate - Construction		570		447		3,920		4,937		27,091		(4,154	)		27,874		3,920
Real Estate - Other		5,301		2,145		37,389		44,835		405,796		(58,440	)		392,191		37,389
Commercial Business		845		112		2,684		3,641		70,777		(7,187	)		67,231		2,684
Consumer and Other
Indirect Automobile		67		22		123		212		3,716		—			3,928		123
Home Equity		916		269		5,510		6,695		68,305		(7,523	)		67,477		5,510
Credit Card		—		—		—		—		—		—			—		—
Other		194		524		520		1,238		17,631		(1,556	)		17,313		520
Total	$	7,893	$	3,519	$	50,925	$	62,337	$	617,544	$	(80,062	)	$	599,819	$	50,925

(Dollars in thousands)	Non-covered acquired loans
	Past Due(1)
December 31, 2012	30-59 days		60-89 days		Greater than 90 days		Total past due		Current		Discount			Total non- covered loans, net of unearned income		Recorded investment > 90 days and accruing(1)
Residential
Prime	$	—	$	—	$	779	$	779	$	30,663	$	1,315		$	32,757	$	779
Subprime		—		—		—		—		—		—			—		—
Commercial
Real Estate - Construction		369		—		4,067		4,436		29,098		(3,968	)		29,566		4,067
Real Estate - Other		5,971		1,572		38,987		46,530		426,339		(57,055	)		415,814		38,987
Commercial Business		1,410		524		3,953		5,887		89,490		(12,144	)		83,233		3,953
Consumer and Other
Indirect Automobile		171		4		146		321		4,698		—			5,019		146
Home Equity		2,379		382		4,354		7,115		73,658		(4,498	)		76,275		4,354
Credit Card		—		—		—		—		—		—			—		—
Other		202		17		495		714		21,746		(6,805	)		15,655		495
Total	$	10,502	$	2,499	$	52,781	$	65,782	$	675,692	$	(83,155	)	$	658,319	$	52,781

⁽¹⁾ Past due information includes loans acquired from OMNI, Cameron, and Florida Gulf at the gross loan balance, prior to application of discounts, at March 31, 2013 and December 31, 2012.

TDRs [Member]

Schedule of Subsequently Defaulted TDRs

Information about the Company’s non-covered TDRs occurring in these periods, as well as non-covered TDRs that subsequently defaulted during the previous twelve months, is presented in the following tables.

	March 31, 2013						March 31, 2012
(In thousands, except number of loans)	Number of Loans		Pre- modification Outstanding Recorded Investment		Post- modification Outstanding Recorded Investment(1)		Number of Loans		Pre- modification Outstanding Recorded Investment		Post- modification Outstanding Recorded Investment(1)
TDRs occurring during the three-month period
Residential
Prime		—	$	—	$	—		—	$	—	$	—
Commercial
Real Estate		1		1,545		1,545		11		4,036		3,773
Business		—		—		—		1		27		—
Consumer and Other
Indirect Automobile		—		—		—		—		—		—
Home Equity		—		—		—		—		—		—
Credit Card		—		—		—		—		—		—
Other		—		—		—		1		—		—
Total		1	$	1,545	$	1,545		13	$	4,063	$	3,773

	March 31, 2013				March 31, 2012
Total TDRs that subsequently defaulted in the past 12 months	Number of Loans		Recorded Investment		Number of Loans		Recorded Investment
Residential
Prime		—	$	—		—	$	—
Commercial
Real Estate		48		15,147		40		24,053
Business		8		1,469		6		1,866
Consumer and Other
Indirect Automobile		—		—		—		—
Home Equity		1		51		—		—
Credit Card		—		—		—		—
Other		1		—		1		—
Total		58	$	16,667		47	$	25,919

(1) Recorded investment includes any allowance for credit losses recorded on the TDRs at the dates indicated.

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Investment Securities (Tables)

3 Months Ended

Mar. 31, 2013

Investments Debt And Equity Securities [Abstract]

Schedule of Amortized Cost and Fair Values of Investment Securities, with Gross Unrealized Gains and Losses

The amortized cost and fair values of investment securities, with gross unrealized gains and losses, consist of the following:

(Dollars in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
March 31, 2013
Securities available for sale:
U.S. Government-sponsored enterprise obligations	$	526,440	$	4,698	$	(298	)	$	530,840
Obligations of state and political subdivisions		117,199		5,826		(179	)		122,846
Mortgage backed securities		1,272,646		25,531		(1,853	)		1,296,324
Other securities		1,460		78		—			1,538
Total securities available for sale	$	1,917,745	$	36,133	$	(2,330	)	$	1,951,548
Securities held to maturity:
U.S. Government-sponsored enterprise obligations	$	69,951	$	1,016	$	—		$	70,967
Obligations of state and political subdivisions		85,723		3,867		(232	)		89,358
Mortgage backed securities		42,768		453		(446	)		42,775
Total securities held to maturity	$	198,442	$	5,336	$	(678	)	$	203,100
December 31, 2012
Securities available for sale:
U.S. Government-sponsored enterprise obligations	$	281,746	$	4,364	$	(386	)	$	285,724
Obligations of state and political subdivisions		120,680		6,573		(178	)		127,075
Mortgage backed securities		1,303,030		29,108		(1,482	)		1,330,656
Other securities		1,460		89		—			1,549
Total securities available for sale	$	1,706,916	$	40,134	$	(2,046	)	$	1,745,004
Securities held to maturity:
U.S. Government-sponsored enterprise obligations	$	69,949	$	1,244	$	—		$	71,193
Obligations of state and political subdivisions		88,909		4,730		(113	)		93,526
Mortgage backed securities		46,204		728		(153	)		46,779
Total securities held to maturity	$	205,062	$	6,702	$	(266	)	$	211,498

Schedule of Securities with Gross Unrealized Losses Aggregated by Investment Category

Information pertaining to securities with gross unrealized losses at March 31, 2013 and December 31, 2012 aggregated by investment category and length of time that individual securities have been in a continuous loss position, follows:

	Less Than Twelve Months					Over Twelve Months					Total
(Dollars in thousands)	Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value
March 31, 2013
Securities available for sale:
U.S. Government-sponsored enterprise obligations	$	(298	)	$	165,763	$	—		$	—	$	(298	)	$	165,763
Obligations of state and political subdivisions		(1	)		336		(178	)		1,094		(179	)		1,430
Mortgage backed securities		(1,851	)		188,106		(2	)		2,679		(1,853	)		190,785
Total securities available for sale	$	(2,150	)	$	354,205	$	(180	)	$	3,773	$	(2,330	)	$	357,978
Securities held to maturity:
U.S. Government-sponsored enterprise obligations	$	—		$	—	$	—		$	—	$	—		$	—
Obligations of state and political subdivisions		(232	)		10,478		—			—		(232	)		10,478
Mortgage backed securities		(446	)		24,372		—			—		(446	)		24,372
Total securities held to maturity	$	(678	)	$	34,850	$	—		$	—	$	(678	)	$	34,850
December 31, 2012
Securities available for sale:
U.S. Government-sponsored enterprise obligations	$	(386	)	$	59,741	$	—		$	—	$	(386	)	$	59,741
Obligations of state and political subdivisions		—			—		(178	)		1,094		(178	)		1,094
Mortgage backed securities		(1,473	)		180,027		(9	)		3,919		(1,482	)		183,946
Total securities available for sale	$	(1,859	)	$	239,768	$	(187	)	$	5,013	$	(2,046	)	$	244,781
Securities held to maturity:
U.S. Government-sponsored enterprise obligations	$	—		$	—	$	—		$	—	$	—		$	—
Obligations of state and political subdivisions		(113	)		8,242		—			—		(113	)		8,242
Mortgage backed securities		(153	)		16,262		—			—		(153	)		16,262
Total securities held to maturity	$	(266	)	$	24,504	$	—		$	—	$	(266	)	$	24,504

Schedule of Amortized Cost and Estimated Fair Value by Maturity of Investment Securities

The amortized cost and estimated fair value by maturity of investment securities at March 31, 2013 are shown in the following table. Securities are classified according to their contractual maturities without consideration of principal amortization, potential prepayments or call options. Accordingly, actual maturities may differ from contractual maturities.

	Securities Available for Sale							Securities Held to Maturity
(Dollars in thousands)	Weighted Average Yield			Amortized Cost		Estimated Fair Value		Weighted Average Yield			Amortized Cost		Estimated Fair Value
Within one year or less		0.12	%	$	78,131	$	78,219		1.77	%	$	21,425	$	21,507
One through five years		1.34			231,579		234,222		2.00			56,171		57,395
After five through ten years		1.90			593,060		606,763		2.53			23,073		24,182
Over ten years		1.75			1,014,975		1,032,344		2.91			97,773		100,016
Totals		1.68	%	$	1,917,745	$	1,951,548		2.48	%	$	198,442	$	203,100

Schedule of Realized Gains and Losses from Sale of Securities Classified as Available for Sale

The following is a summary of realized gains and losses from the sale of securities classified as available for sale.

	Three Months Ended March 31,
(Dollars in thousands)	2013			2012
Realized gains	$	2,365		$	2,815
Realized losses		(37	)		(15	)
Net realized gains	$	2,328		$	2,800

Schedule of Securities in Other Assets on Company's Consolidated Balance Sheets

At March 31, 2013 and December 31, 2012, the Company included the following securities in “Other assets” on the Company’s consolidated balance sheets:

(Dollars in thousands)	March 31, 2013		December 31, 2012
Federal Home Loan Bank (FHLB) stock	$	10,404	$	16,860
Federal Reserve Bank (FRB) stock		28,155		28,155
First National Bankers Bankshares, Inc. (FNBB) stock		899		899
Other investments		406		302
Total equity securities	$	39,864	$	46,216

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Loans Receivable - Schedule of Aging of Non-Covered Loans (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Non-Covered Loans Excluding Acquired Loans [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days	$ 5,160	$ 10,345
Past Due, 60-89 days	3,348	2,447
Past Due, Greater than 90 days	48,515	49,288
Total past due	57,023	62,080
Current	6,933,960	6,685,425
Total non-covered loans, net of unearned income	6,990,983	6,747,505
Recorded investment > 90 days and accruing	1,950	1,371
Non-Covered Loans Excluding Acquired Loans [Member] | Residential Mortgage Loans [Member] | Mortgage - Prime [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days	876	662
Past Due, 60-89 days	1,570	1,156
Past Due, Greater than 90 days	9,425	9,168
Total past due	11,871	10,986
Current	176,807	185,843
Total non-covered loans, net of unearned income	188,678	196,829
Recorded investment > 90 days and accruing	1,266	801
Non-Covered Loans Excluding Acquired Loans [Member] | Residential Mortgage Loans [Member] | Mortgage - Subprime [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days
Past Due, 60-89 days	7
Past Due, Greater than 90 days
Total past due	7
Current	88,799	60,454
Total non-covered loans, net of unearned income	88,806	60,454
Recorded investment > 90 days and accruing
Non-Covered Loans Excluding Acquired Loans [Member] | Commercial Loans [Member] | Commercial Real Estate Construction [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days	224	60
Past Due, 60-89 days
Past Due, Greater than 90 days	5,939	5,479
Total past due	6,163	5,539
Current	322,703	288,137
Total non-covered loans, net of unearned income	328,866	293,676
Recorded investment > 90 days and accruing
Non-Covered Loans Excluding Acquired Loans [Member] | Commercial Loans [Member] | Commercial Real Estate - Other [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days	1,141	3,590
Past Due, 60-89 days	266
Past Due, Greater than 90 days	22,514	23,559
Total past due	23,921	27,149
Current	2,247,219	2,224,495
Total non-covered loans, net of unearned income	2,271,140	2,251,644
Recorded investment > 90 days and accruing	519	83
Non-Covered Loans Excluding Acquired Loans [Member] | Commercial Loans [Member] | Commercial Business [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days	550	1,430
Past Due, 60-89 days	386	13
Past Due, Greater than 90 days	1,937	3,687
Total past due	2,873	5,130
Current	2,464,508	2,362,304
Total non-covered loans, net of unearned income	2,467,381	2,367,434
Recorded investment > 90 days and accruing	7	329
Non-Covered Loans Excluding Acquired Loans [Member] | Consumer And Other Loans [Member] | Indirect Automobile [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days	1,068	1,624
Past Due, 60-89 days	186	326
Past Due, Greater than 90 days	982	868
Total past due	2,236	2,818
Current	335,953	320,148
Total non-covered loans, net of unearned income	338,189	322,966
Recorded investment > 90 days and accruing
Non-Covered Loans Excluding Acquired Loans [Member] | Consumer And Other Loans [Member] | Home Equity [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days	882	2,283
Past Due, 60-89 days	705	796
Past Due, Greater than 90 days	6,966	5,793
Total past due	8,553	8,872
Current	1,016,663	991,766
Total non-covered loans, net of unearned income	1,025,216	1,000,638
Recorded investment > 90 days and accruing	158	158
Non-Covered Loans Excluding Acquired Loans [Member] | Consumer And Other Loans [Member] | Credit Card [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days	158	130
Past Due, 60-89 days	93	51
Past Due, Greater than 90 days	403	424
Total past due	654	605
Current	50,169	51,117
Total non-covered loans, net of unearned income	50,823	51,722
Recorded investment > 90 days and accruing
Non-Covered Loans Excluding Acquired Loans [Member] | Consumer And Other Loans [Member] | Other [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days	261	566
Past Due, 60-89 days	135	105
Past Due, Greater than 90 days	349	310
Total past due	745	981
Current	231,139	201,161
Total non-covered loans, net of unearned income	231,884	202,142
Recorded investment > 90 days and accruing
Non-Covered Acquired Loans [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days	7,893	10,502
Past Due, 60-89 days	3,519	2,499
Past Due, Greater than 90 days	50,925	52,781
Total past due	62,337	65,782
Current	617,544	675,692
Discount	(80,062)	(83,155)
Total non-covered loans, net of unearned income	599,819	658,319
Recorded investment > 90 days and accruing	50,925	52,781
Non-Covered Acquired Loans [Member] | Residential Mortgage Loans [Member] | Mortgage - Prime [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days
Past Due, 60-89 days
Past Due, Greater than 90 days	779	779
Total past due	779	779
Current	24,228	30,663
Discount	(1,202)	1,315
Total non-covered loans, net of unearned income	23,805	32,757
Recorded investment > 90 days and accruing	779	779
Non-Covered Acquired Loans [Member] | Residential Mortgage Loans [Member] | Mortgage - Subprime [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days
Past Due, 60-89 days
Past Due, Greater than 90 days
Total past due
Current
Discount
Total non-covered loans, net of unearned income
Recorded investment > 90 days and accruing
Non-Covered Acquired Loans [Member] | Commercial Loans [Member] | Commercial Real Estate Construction [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days	570	369
Past Due, 60-89 days	447
Past Due, Greater than 90 days	3,920	4,067
Total past due	4,937	4,436
Current	27,091	29,098
Discount	(4,154)	(3,968)
Total non-covered loans, net of unearned income	27,874	29,566
Recorded investment > 90 days and accruing	3,920	4,067
Non-Covered Acquired Loans [Member] | Commercial Loans [Member] | Commercial Real Estate - Other [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days	5,301	5,971
Past Due, 60-89 days	2,145	1,572
Past Due, Greater than 90 days	37,389	38,987
Total past due	44,835	46,530
Current	405,796	426,339
Discount	(58,440)	(57,055)
Total non-covered loans, net of unearned income	392,191	415,814
Recorded investment > 90 days and accruing	37,389	38,987
Non-Covered Acquired Loans [Member] | Commercial Loans [Member] | Commercial Business [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days	845	1,410
Past Due, 60-89 days	112	524
Past Due, Greater than 90 days	2,684	3,953
Total past due	3,641	5,887
Current	70,777	89,490
Discount	(7,187)	(12,144)
Total non-covered loans, net of unearned income	67,231	83,233
Recorded investment > 90 days and accruing	2,684	3,953
Non-Covered Acquired Loans [Member] | Consumer And Other Loans [Member] | Indirect Automobile [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days	67	171
Past Due, 60-89 days	22	4
Past Due, Greater than 90 days	123	146
Total past due	212	321
Current	3,716	4,698
Discount
Total non-covered loans, net of unearned income	3,928	5,019
Recorded investment > 90 days and accruing	123	146
Non-Covered Acquired Loans [Member] | Consumer And Other Loans [Member] | Home Equity [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days	916	2,379
Past Due, 60-89 days	269	382
Past Due, Greater than 90 days	5,510	4,354
Total past due	6,695	7,115
Current	68,305	73,658
Discount	(7,523)	(4,498)
Total non-covered loans, net of unearned income	67,477	76,275
Recorded investment > 90 days and accruing	5,510	4,354
Non-Covered Acquired Loans [Member] | Consumer And Other Loans [Member] | Credit Card [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days
Past Due, 60-89 days
Past Due, Greater than 90 days
Total past due
Current
Discount
Total non-covered loans, net of unearned income
Recorded investment > 90 days and accruing
Non-Covered Acquired Loans [Member] | Consumer And Other Loans [Member] | Other [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days	194	202
Past Due, 60-89 days	524	17
Past Due, Greater than 90 days	520	495
Total past due	1,238	714
Current	17,631	21,746
Discount	(1,556)	(6,805)
Total non-covered loans, net of unearned income	17,313	15,655
Recorded investment > 90 days and accruing	$ 520	$ 495

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Earnings Per Share - Schedule of Basic Earnings Per Common Share (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Distributed earnings	$ 9,896	$ 9,842
Undistributed earnings (distributed capital)	(9,193)	9,177
Total earnings to common shareholders	703	19,019
Distributed earnings	$ 0.34	$ 0.34
Undistributed earnings (distributed capital)	$ (0.32)	$ 0.32
Total earnings per common share - Basic	$ 0.02	$ 0.66
Unvested restricted stock [Member]
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Distributed earnings	199	194
Undistributed earnings (distributed capital)	(185)	180
Total earnings allocated to restricted stock	$ 14	$ 374
Distributed earnings	$ 0.35	$ 0.36
Undistributed earnings (distributed capital)	$ (0.33)	$ 0.34
Total earnings per common share - Basic	$ 0.03	$ 0.70

XML

Allowance for Credit Losses and Credit Quality (Tables)

3 Months Ended

Mar. 31, 2013

Schedule of Allowance for Loan Losses for Covered Loan and Non-Covered Loan Portfolios

A summary of changes in the allowance for credit losses for the covered loan and non-covered loan portfolios for the three months ended March 31, 2013 and 2012 follows.

(Dollars in thousands)	March 31, 2013
	Non-covered loans
	Excluding Acquired Loans			Acquired Loans			Covered loans			Total
Balance, beginning of period	$	74,211		$	8,816		$	168,576		$	251,603
(Reversal of) Provision for credit losses before benefit attributable to FDIC loss share agreements		(4,002	)		596			(45,385	)		(48,791	)
Adjustment attributable to FDIC loss share agreements		—			—			45,414			45,414
Net (reversal of) provision for credit losses		(4,002	)		596			29			(3,377	)
Decrease in FDIC loss share receivable		—			—			(45,414	)		(45,414	)
Transfer of balance to OREO		—			(559	)		(11,318	)		(11,877	)
Loans charged-off		(2,062	)		—			(41	)		(2,103	)
Recoveries		893			—			—			893
Balance, end of period	$	69,040		$	8,853		$	111,832		$	189,725

(Dollars in thousands)	March 31, 2012
	Non-covered loans
	Excluding Acquired Loans			Acquired Loans			Covered loans			Total
Balance, beginning of period	$	74,861		$	—		$	118,900		$	193,761
Provision for credit losses before benefit attributable to FDIC loss share agreements		1,004			1,106			1,431			3,541
Adjustment attributable to FDIC loss share agreements		—			—			(684	)		(684	)
Net provision for credit losses		1,004			1,106			747			2,857
Increase in FDIC loss share receivable		—			—			684			684
Transfer of balance to OREO		—			(6	)		(5,357	)		(5,363	)
Loans charged-off		(2,111	)		(160	)		(13,266	)		(15,537	)
Recoveries		772			1			17			790
Balance, end of period	$	74,526		$	941		$	101,725		$	177,192

Schedule of Allowance for Loan Losses for Non-Covered Loans, by Loan Portfolio

A summary of changes in the allowance for credit losses for non-covered loans, by loan portfolio type, for the three months ended March 31, 2013 and 2012 is as follows:

(Dollars in thousands)	Commercial Real Estate			Commercial Business			Consumer			Mortgage			Unallocated		Total
March 31, 2013
Allowance for credit losses
Balance, beginning of period	$	38,264		$	28,721		$	13,917		$	2,125		$	—	$	83,027
(Reversal of) Provision for loan losses		(1,804	)		(646	)		(1,374	)		418			—		(3,406	)
Transfer of balance to OREO		(285	)		—			(7	)		(267	)		—		(559	)
Loans charged off		(413	)		(225	)		(1,183	)		(241	)		—		(2,062	)
Recoveries		56			188			618			31			—		893
Balance, end of period	$	35,818		$	28,038		$	11,971		$	2,066		$	—	$	77,893
Allowance on loans individually evaluated for impairment	$	35		$	116		$	41		$	137		$	—	$	329
Allowance on loans collectively evaluated for impairment		35,783			27,922			11,930			1,929			—		77,564
Loans, net of unearned income
Balance, end of period	$	3,020,071		$	2,534,612		$	1,734,830		$	301,289		$	—	$	7,590,802
Balance, end of period: Loans individually evaluated for impairment		27,271			2,958			312			1,058			—		31,599
Balance, end of period: Loans collectively evaluated for impairment		2,992,800			2,531,654			1,734,518			300,231			—		7,559,203
Balance, end of period: Loans acquired with deteriorated credit quality		50,503			3,339			4,276			383			—		58,501

(Dollars in thousands)	Commercial Real Estate			Commercial Business			Consumer			Mortgage			Unallocated		Total
March 31, 2012
Allowance for credit losses
Balance, beginning of period	$	35,604		$	25,705		$	12,655		$	897		$	—	$	74,861
(Reversal of) Provision for credit losses		(860	)		2,065			1,024			(119	)		—		2,110
Transfer of balance to OREO		(6	)		—			—			—			—		(6	)
Loans charged off		(803	)		(31	)		(1,274	)		(163	)		—		(2,271	)
Recoveries		128			31			604			10			—		773
Balance, end of period	$	34,063		$	27,770		$	13,009		$	625		$	—	$	75,467
Allowance on loans individually evaluated for impairment	$	1,590		$	202		$	—		$	168		$	—	$	1,960
Allowance on loans collectively evaluated for impairment		32,473			27,568			13,009			457			—		73,507
Loans, net of unearned income
Balance, end of period	$	2,580,727		$	2,020,510		$	1,353,404		$	263,003		$	—	$	6,217,644
Balance, end of period: Loans individually evaluated for impairment		33,952			6,486			228			1,186			—		41,852
Balance, end of period: Loans collectively evaluated for impairment		2,546,775			2,014,024			1,353,176			261,817			—		6,175,792
Balance, end of period: Loans acquired with deteriorated credit quality		15,292			24,193			5,640			—			—		45,125

Schedule of Allowance for Loan Losses for Covered Loans, by Loan Portfolio

A summary of changes in the allowance for credit losses for covered loans, by loan portfolio type, for the three months ended March 31, 2013 and 2012 is as follows:

(Dollars in thousands)	Commercial Real Estate			Commercial Business			Consumer			Mortgage			Unallocated		Total
March 31, 2013
Allowance for credit losses
Balance, beginning of period	$	100,871		$	11,375		$	33,764		$	22,566		$	—	$	168,576
(Reversal of) Provision for credit losses		29			—			—			—			—		29
Decrease in FDIC loss share receivable		(23,001	)		(1,601	)		(15,905	)		(4,907	)		—		(45,414	)
Transfer of balance to OREO		(9,729	)		—			—			(1,589	)		—		(11,318	)
Loans charged off		(41	)		—			—			—			—		(41	)
Recoveries		—			—			—			—			—		—
Balance, end of period	$	68,129		$	9,774		$	17,859		$	16,070		$	—	$	111,832
Allowance on loans individually evaluated for impairment	$	—		$	—		$	—		$	—		$	—	$	—
Allowance on loans collectively evaluated for impairment		68,129			9,774			17,859			16,070			—		111,832
Loans, net of unearned income
Balance, end of period	$	567,621		$	87,032		$	172,192		$	177,328		$	—	$	1,004,173
Balance, end of period: Loans individually evaluated for impairment		—			—			—			—			—		—
Balance, end of period: Loans collectively evaluated for impairment		567,621			87,032			172,192			177,328			—		1,004,173
Balance, end of period: Loans acquired with deteriorated credit quality		146,932			2,832			22,685			18,388			—		190,837

(Dollars in thousands)	Commercial Real Estate			Commercial Business			Consumer			Mortgage			Unallocated		Total
March 31, 2012
Allowance for credit losses
Balance, beginning of period	$	69,175		$	9,788		$	18,753		$	21,184		$	—	$	118,900
(Reversal of) Provision for credit losses		1,386			794			578			(2,011	)		—		747
Increase (decrease) in FDIC loss share receivable		1,268			728			529			(1,841	)		—		684
Transfer of balance to OREO		(3,179	)		(4	)		(797	)		(1,377	)		—		(5,357	)
Loans charged off		(13,126	)		—			(9	)		(131	)		—		(13,266	)
Recoveries		14			—			3			—			—		17
Balance, end of period	$	55,538		$	11,306		$	19,057		$	15,824		$	—	$	101,725
Allowance on loans individually evaluated for impairment	$	—		$	—		$	—		$	—		$	—	$	—
Allowance on loans collectively evaluated for impairment		55,538			11,306			19,057			15,824			—		101,725
Loans, net of unearned income
Balance, end of period	$	725,470		$	104,102		$	194,539		$	236,551		$	—	$	1,260,662
Balance, end of period: Loans individually evaluated for impairment		—			—			—			—			—		—
Balance, end of period: Loans collectively evaluated for impairment		725,470			104,102			194,539			236,551			—		1,260,662
Balance, end of period: Loans acquired with deteriorated credit quality		184,830			4,005			27,596			30,694			—		247,125

Investment in Covered Loans and Non-Covered Loans by Credit Quality Indicator

The Company’s investment in non-covered loans by credit quality indicator as of March 31, 2013 and December 31, 2012 is presented in the following tables.

(Dollars in thousands)	Non-covered loans excluding acquired loans
	Commercial Real Estate Construction				Commercial Real Estate- Other				Commercial Business
Credit quality indicator by asset risk classification	March 31, 2013		December 31, 2012		March 31, 2013		December 31, 2012		March 31, 2013		December 31, 2012
Pass	$	307,334	$	269,842	$	2,197,301	$	2,162,989	$	2,405,197	$	2,295,788
Special Mention		14,016		16,767		33,328		40,547		19,896		21,640
Substandard		7,516		7,067		40,113		47,710		42,240		49,958
Doubtful		—		—		398		398		48		48
Total		328,866		293,676		2,271,140		2,251,644		2,467,381		2,367,434
Discount		—		—		—		—		—		—
Non-covered commercial loans, net	$	328,866	$	293,676	$	2,271,140	$	2,251,644	$	2,467,381	$	2,367,434

	Mortgage - Prime				Mortgage - Subprime
Credit risk by payment status	March 31, 2013		December 31, 2012		March 31, 2013		December 31, 2012
Current	$	176,807	$	185,843	$	88,799	$	60,454
Past due greater than 30 days		11,871		10,986		7		—
Total		188,678		196,829		88,806		60,454
Discount		—		—		—		—
Non-covered mortgage loans, net	$	188,678	$	196,829	$	88,806	$	60,454

	Indirect Automobile				Credit Card
Credit risk by payment status	March 31, 2013		December 31, 2012		March 31, 2013		December 31, 2012
Current	$	335,953	$	320,148	$	50,169	$	51,117
Past due greater than 30 days		2,236		2,818		654		605
Total	$	338,189	$	322,966	$	50,823	$	51,722

	Home Equity				Consumer - Other
Credit risk by payment status	March 31, 2013		December 31, 2012		March 31, 2013		December 31, 2012
Current	$	1,016,663	$	991,766	$	231,139	$	201,161
Past due greater than 30 days		8,553		8,872		745		981
Total		1,025,216		1,000,638		231,884		202,142
Discount		—		—		—		—
Non-covered consumer loans, net	$	1,025,216	$	1,000,638	$	231,884	$	202,142

Schedule of Investment in Impaired Loan

Information on the Company’s investment in impaired loans is presented in the following tables as of and for the periods indicated.

(Dollars in thousands)	At March 31, 2013							At December 31, 2012
	Recorded Investment		Unpaid Principal Balance		Related Allowance			Recorded Investment		Unpaid Principal Balance		Related Allowance
With no related allowance recorded
Commercial Loans
Real Estate	$	29,043	$	29,043	$	—		$	26,151	$	26,151	$	—
Business		2,926		2,926		—			1,824		1,824		—
With an allowance recorded
Mortgage Loans
Residential - Prime	$	9,037	$	9,216	$	(179	)	$	9,861	$	10,070	$	(209	)
Residential - Subprime		—		—		—			—		—		—
Commercial Loans
Real Estate		145		156		(11	)		3,464		3,663		(199	)
Business		309		449		(140	)		1,334		1,810		(476	)
Consumer Loans
Indirect automobile		978		982		(4	)		865		868		(3	)
Credit card		394		403		(9	)		413		424		(11	)
Home equity		7,343		7,434		(91	)		5,860		5,951		(91	)
Other		346		349		(3	)		307		310		(3	)
Total
Mortgage Loans	$	9,037	$	9,216	$	(179	)	$	9,861	$	10,070		(209	)
Commercial Loans		32,423		32,574		(151	)		32,773		33,448		(675	)
Consumer Loans		9,061		9,168		(107	)		7,445		7,553		(108	)

(Dollars in thousands)	For the Three Months Ended March 31, 2013				For the Three Months Ended March 31, 2012
	Average Recorded Investment		Interest Income Recognized		Average Recorded Investment		Interest Income Recognized
With no related allowance recorded
Commercial Loans
Real Estate	$	30,510	$	28	$	32,007	$	—
Business		3,030		24		6,530		—
With an allowance recorded
Mortgage Loans
Residential - Prime		9,213		—		5,389		—
Residential - Subprime		—		—		—		—
Commercial Loans
Real Estate		157		2		4,657		32
Business		451		5		246		1
Consumer Loans
Indirect automobile		1,267		—		862		—
Credit card		405		—		423		—
Home equity		6,910		—		6,575		—
Other		497		—		748		—
Total
Mortgage Loans		9,213		—		5,389		—
Commercial Loans		34,148		59		43,440		33
Consumer Loans		9,079		—		8,608		—

Covered Loans [Member]

Investment in Covered Loans and Non-Covered Loans by Credit Quality Indicator

The Company’s investment in covered loans by credit quality indicator as of March 31, 2013 and December 31, 2012 is presented in the following table.

(Dollars in thousands)	Covered loans
March 31, 2013	Commercial
Credit quality indicator by asset risk classification	Real Estate - Construction		Real Estate  - Other		Business		Total
Pass	$	48,695	$	185,652	$	34,212	$	268,559
Special Mention		9,568		62,980		3,039		75,587
Substandard		79,496		241,459		42,103		363,058
Doubtful		607		8,241		443		9,291
Total	$	138,366	$	498,332	$	79,797	$	716,495
Discount								(61,842	)
Covered commercial loans, net							$	654,653

	Mortgage
Credit risk by payment status	Prime		Subprime		Total
Current	$	177,811	$	—	$	177,811
Past due greater than 30 days		44,777		—		44,777
Total	$	222,588	$	—	$	222,588
Discount						(45,260	)
Covered mortgage loans, net					$	177,328

	Consumer and Other
Credit risk by payment status	Indirect Automobile		Credit Card		Home Equity		Other		Total
Current	$	—	$	784	$	166,129	$	1,084	$	167,997
Past due greater than 30 days		—		35		54,924		1,637		56,596
Total	$	—	$	819	$	221,053	$	2,721	$	224,593
Discount										(52,401	)
Covered consumer loans, net									$	172,192

(Dollars in thousands)	Covered loans
December 31, 2012	Commercial
Credit quality indicator by asset risk classification	Real Estate - Construction		Real Estate  - Other		Business		Total
Pass	$	46,201	$	201,261	$	38,552	$	286,014
Special Mention		9,888		65,498		8,600		83,986
Substandard		97,315		279,171		50,018		426,504
Doubtful		607		8,530		451		9,588
Total	$	154,011	$	554,460	$	97,621	$	806,092
Discount								(78,198	)
Covered commercial loans, net							$	727,894

	Mortgage
Credit risk by payment status	Prime		Subprime		Total
Current	$	183,795	$	—	$	183,795
Past Due greater than 30 days		52,379		—		52,379
Total	$	236,174	$	—	$	236,174
Discount						(49,010	)
Covered mortgage loans, net					$	187,164

	Consumer and Other
Credit risk by payment status	Indirect Automobile		Credit Card		Home Equity		Other		Total
Current	$	—	$	841	$	168,728	$	1,155	$	170,724
Past Due greater than 30 days		—		65		65,997		1,523		67,585
Total	$	—	$	906	$	234,725	$	2,678	$	238,309
Discount										(60,611	)
Covered consumer loans, net									$	177,698

Acquired Loans [Member]

Investment in Covered Loans and Non-Covered Loans by Credit Quality Indicator

The Company’s investment in non-covered loans by credit quality indicator as of March 31, 2013 and December 31, 2012 is presented in the following tables.

(Dollars in thousands)	Non-covered acquired loans
	Commercial Real Estate Construction						Commercial Real Estate- Other						Commercial Business
Credit quality indicator by asset risk classification	March 31, 2013			December 31, 2012			March 31, 2013			December 31, 2012			March 31, 2013			December 31, 2012
Pass	$	24,619		$	25,896		$	341,260		$	359,046		$	65,815		$	86,201
Special Mention		2,017			2,410			28,730			28,185			3,758			2,159
Substandard		5,392			5,228			76,232			85,420			3,914			4,808
Doubtful		—			—			4,409			218			931			2,209
Total		32,028			33,534			450,631			472,869			74,418			95,377
Discount		(4,154	)		(3,968	)		(58,440	)		(57,055	)		(7,187	)		(12,144	)
Non-covered commercial loans, net	$	27,874		$	29,566		$	392,191		$	415,814		$	67,231		$	83,233

	Mortgage - Prime					Mortgage - Subprime
Credit risk by payment status	March 31, 2013			December 31, 2012		March 31, 2013		December 31, 2012
Current	$	24,228		$	30,663	$	—	$	—
Past due greater than 30 days		779			779		—		—
Total		25,007			31,442		—		—
Premium (discount)		(1,202	)		1,315		—		—
Non-covered mortgage loans, net	$	23,805		$	32,757	$	—	$	—

	Indirect Automobile				Credit Card
Credit risk by payment status	March 31, 2013		December 31, 2012		March 31, 2013		December 31, 2012
Current	$	3,716	$	4,698	$	—	$	—
Past due greater than 30 days		212		321		—		—
Total		3 ,928		5,019
Premium (discount)		—		—		—		—
Non-covered consumer loans, net	$	3,928	$	5,019	$	—	$	—

	Home Equity						Consumer - Other
Credit risk by payment status	March 31, 2013			December 31, 2012			March 31, 2013			December 31, 2012
Current	$	68,305		$	73,658		$	17,631		$	21,746
Past due greater than 30 days		6,695			7,115			1,238			714
Total		75,000			80,773			18,869			22,460
Discount		(7,523	)		(4,498	)		(1,556	)		(6,805	)
Non-covered consumer loans, net	$	67,477		$	76,275		$	17,313		$	15,655

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Transfers and Servicing of Financial Assets (Including Mortgage Banking Activity) (Tables)

3 Months Ended

Mar. 31, 2013

Transfers And Servicing [Abstract]

Components of Mortgage Banking Activity

The following table details the mortgage banking activity as of and for the three months ended March 31:

(Dollars in thousands)
Mortgage loans held for sale	2013			2012
Balance, beginning of period	$	267,475		$	153,013
Balance acquired during the period		—			—
Originations		536,673			450,644
Sales		(616,111	)		(475,532	)
Balance, end of period	$	188,037		$	128,125

(Dollars in thousands)
Detail of mortgage income	2013		2012
Fair value changes of derivatives and mortgage loans held for sale, net	$	364	$	56
Gains on sales		18,429		13,563
Servicing and other income, net		138		99
Total mortgage income	$	18,931	$	13,718

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Basis of Presentation

3 Months Ended

Mar. 31, 2013

Accounting Policies [Abstract]

Basis of Presentation

NOTE 1 – BASIS OF PRESENTATION

The accompanying unaudited consolidated financial statements have been prepared in accordance with generally accepted accounting principles for interim financial information and the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include information or footnotes necessary for a complete presentation of financial position, results of operations and cash flows in conformity with generally accepted accounting principles. These interim financial statements should be read in conjunction with the audited financial statements and note disclosures for IBERIABANK Corporation (“the Company”) previously filed with the Securities and Exchange Commission (the “SEC”) in the Company’s Annual Report on Form 10-K for the year ended December 31, 2012.

PRINCIPLES OF CONSOLIDATION

The consolidated financial statements include the accounts of IBERIABANK Corporation (the “Company”) and its wholly owned subsidiaries, IBERIABANK, Lenders Title Company (“LTC”), IBERIA Capital Partners LLC (“ICP”), IB Aircraft Holdings, LLC, IBERIA Asset Management Inc. (“IAM”), and IBERIA CDE, LLC (“CDE”). All significant intercompany balances and transactions have been eliminated in consolidation. All normal, recurring adjustments which, in the opinion of management are necessary for a fair presentation of the financial statements, have been included. Certain amounts reported in prior periods have been reclassified to conform to the current period presentation.

NATURE OF OPERATIONS

The Company offers commercial and retail banking products and services to customers throughout locations in six states through IBERIABANK. The Company also operates mortgage production offices in twelve states through IBERIABANK Mortgage Company (“IMC”), and offers a full line of title insurance and closing services throughout Arkansas and Louisiana through LTC and its subsidiaries. ICP provides equity research, institutional sales and trading, and corporate finance services. IB Aircraft Holdings, LLC owns a fractional share of an aircraft used by management of the Company and its subsidiaries. IAM provides wealth management and trust services for commercial and private banking clients. CDE is engaged in the purchase of tax credits.

USE OF ESTIMATES

The preparation of financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could differ from those estimates. Material estimates that are susceptible to significant change in the near term are the allowance for credit losses, valuation of and accounting for loans covered by loss sharing arrangements with the FDIC and the related loss share receivables, valuation of and accounting for acquired loans, and valuation of goodwill, intangible assets and other purchase accounting adjustments.

CONCENTRATION OF CREDIT RISKS

Most of the Company’s business activity is with customers located within the States of Louisiana, Florida, Arkansas, Alabama, Texas, and Tennessee. The Company’s lending activity is concentrated in its market areas in those states. The Company has emphasized originations of commercial loans and private banking loans, defined as loans to larger consumer clients. Repayments on loans are expected to come from cash flows of the borrower and/or guarantor. Losses on secured loans are limited by the value of the collateral upon default of the borrowers. The Company does not have any significant concentrations to any one industry or customer.

SEGMENTS

All of the Company’s banking operations are considered by management to be aggregated in one reportable operating segment. Because the overall banking operations comprise substantially all of the consolidated operations and none of the Company’s other subsidiaries, either individually or in the aggregate, meet quantitative materiality thresholds, no separate segment disclosures are presented in these consolidated financial statements. The Company has invested in its financial reporting infrastructure to report financial information associated with performance of lines of business within the banking operating segment. The Company anticipates reporting this information in the second half of 2013.

FDIC LOSS SHARE RECEIVABLE

Because the FDIC reimburses the Company for losses on certain loans acquired in 2009 and 2010, indemnification assets were recorded at fair value as of the acquisition dates. The initial values of the indemnification assets were based on estimated cash flows to be received over the expected life of the acquired assets, not to exceed the term of the indemnification agreements. The loss sharing term of Company’s commercial and single family residential indemnification agreements are five year and ten years, respectively, from the date of acquisition.

Because the indemnification assets are measured on the same basis as the indemnified loans, subject to contractual and collectability limitations, the indemnification assets are impacted by changes in expected cash flows on covered loans. Increases in credit losses expected to occur within the loss share term are recorded as current period increases to the allowance for credit losses and increase the indemnification assets by the applicable loss share percentage. Decreases in credit losses expected to occur within loss share term reduce the amount collectible from the FDIC and increase the amount collectible from customers in the form of prospective accretion. Increases in the portion of indemnification asset collectible from customers are amortized to income. Periodic amortization represents that amount that is expected to result in symmetrical recognition of pool-level accretion and amortization over the shorter of 1) the life of the loan or 2) the life of the shared loss agreement.

The Company assesses the indemnification assets for collectability at the acquisition level based on three sources: 1) the FDIC, 2) OREO transactions, and 3) customers. Amounts collectible from the FDIC through loss reimbursements are comprised of losses currently expected within the loss share term. A current period impairment would be recorded to the extent that events or circumstances indicate that losses previously expected to occur within the loss share term are expected to occur subsequent to loss share termination. Amounts collectible through expected gains on the sale of OREO are written-up or impaired each period based on the best available information. Amounts collectible from customers in the form of accretion are deemed collectible to the extent that net acquisition-level yield, which primarily consists of accretion and indemnification asset amortization, are expected to remain positive over the life of the shared loss agreement. Impairment of amounts collectible from customers would be recorded as a current period charge to income, to the extent required to maintain the zero net yield floor.

Loss assumptions used to measure the basis of the indemnified loans are consistent with the loss assumptions used to measure the indemnification assets.

The indemnification asset is reduced and a corresponding claim receivable is established within other assets when a loss is incurred and is subsequently relieved when cash is received from the FDIC.

FAIR VALUE MEASUREMENTS

The Company estimates fair value based on the assumptions market participants would use when selling an asset or transferring a liability and characterizes such measurements within the fair value hierarchy based on the inputs used to develop those assumptions and measure fair value. The hierarchy requires the Company to maximize the use of observable inputs and minimize the use of unobservable inputs. The three levels of inputs used to measure fair value are as follows:

• Level 1 - Quoted prices in active markets for identical assets or liabilities.

• Level 2 - Observable inputs other than quoted prices included in Level 1, such as quoted prices for similar assets and liabilities in active markets; quoted prices for identical or similar assets and liabilities in markets that are not active; or other inputs that are observable or can be corroborated by observable market data.

• Level 3 - Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. This includes certain pricing models, discounted cash flow methodologies and similar techniques that use significant unobservable inputs.

A description of the valuation methodologies used for instruments measured at fair value follows, as well as the classification of such instruments within the valuation hierarchy.

Investment securities

Securities are classified within Level 1 where quoted market prices are available in an active market. Inputs include securities that have quoted prices in active markets for identical assets. If quoted market prices are unavailable, fair value is estimated using quoted prices of securities with similar characteristics, at which point the securities would be classified within Level 2 of the hierarchy. Examples may include certain collateralized mortgage and debt obligations.

Mortgage loans held for sale

As of March 31, 2013, the Company has $188,037,000 of conforming mortgage loans held for sale. Mortgage loans originated and held for sale are carried at the lower of cost or estimated fair value. The Company obtains quotes or bids on these loans directly from purchasing financial institutions. Mortgage loans held for sale that were recorded at estimated fair value would be classified within Level 2 of the hierarchy and are included in the table in Note 15.

Impaired loans

Loans are measured for impairment using the methods permitted by Accounting Standards Codification (“ASC”) Topic 310. Fair value measurements are used in determining impairment using either the loan’s obtainable market price, if available (Level 1) or the fair value of the collateral if the loan is collateral dependent (Level 2). Measuring the impairment of loans using the present value of expected future cash flows, discounted at the loan’s effective interest rate, is not considered a fair value measurement. Fair value of the collateral is determined by appraisals or independent valuation.

Other real estate owned

Fair values of OREO at March 31, 2013 are determined by sales agreement or appraisal, and costs to sell are based on estimation per the terms and conditions of the sales agreement or amounts commonly used in real estate transactions. Inputs include appraisal values on the properties or recent sales activity for similar assets in the property’s market, and thus OREO measured at fair value would be classified within Level 2 of the hierarchy. The Company included property write-downs of $1,154,000 and $2,556,000 in earnings for the three months ended March 31, 2013 and 2012, respectively.

Derivative financial instruments

The Company utilizes interest rate swap agreements to convert a portion of its variable-rate debt to a fixed rate (cash flow hedge). The Company also enters into commitments to originate loans whereby the interest rate on the prospective loan is determined prior to funding (“rate lock commitments”). Rate lock commitments on mortgage loans that are intended to be sold are considered to be derivatives. The Company offers its customers a certificate of deposit that provides the purchaser a guaranteed return of principal at maturity plus potential return, which allows the Company to identify a known cost of funds. The rate of return is based on an equity index, and as such represents an embedded derivative. Fair value of interest rate swaps, interest rate lock commitments, and equity-linked written and purchased options are estimated using prices of financial instruments with similar characteristics, and thus are classified within Level 2 of the fair value hierarchy.

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Goodwill and Other Acquired Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2013

Schedule of Definite-Lived Intangible Assets

Definite-lived intangible assets had the following carrying values at March 31, 2013 and December 31, 2012:

	March 31, 2013							December 31, 2012
(Dollars in thousands)	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Core deposit intangibles	$	45,406	$	(27,409	)	$	17,997	$	45,406	$	(26,284	)	$	19,122
Customer relationship intangible asset		1,348		(468	)		880		1,348		(410	)		938
Total	$	46,754	$	(27,877	)	$	18,877	$	46,754	$	(26,694	)	$	20,060

Schedule of Carrying Amount of Goodwill

Changes to the carrying amount of goodwill for the year ended December 31, 2012 and the three months ended March 31, 2013 are provided in the following table.

(Dollars in thousands)	Amount
Balance, December 31, 2011	$	369,811
Goodwill acquired during the period		32,420
Goodwill adjustment to correct an immaterial error		(359	)
Balance, December 31, 2012		401,872
Goodwill acquired during the period		—
Balance, March 31, 2013	$	401,872

Mortgage servicing rights [Member]

Schedule of Definite-Lived Intangible Assets

Mortgage servicing rights had the following carrying values at March 31, 2013 and December 31, 2012:

	March 31, 2013							December 31, 2012
(Dollars in thousands)	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Mortgage servicing rights	$	1,426	$	(375	)	$	1,051	$	1,234	$	(304	)	$	930

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Share-Based Compensation - Activity Related to Stock Options (Detail) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Share Based Compensation Arrangement By Share Based Payment Award Options Additional Disclosures [Abstract]
Number of shares, Outstanding options, Beginning balance	1,236,075	1,097,620
Number of shares, Outstanding options, Granted	75,722	217,230
Number of shares, Outstanding options, Exercised	(91,348)	(34,278)
Number of shares, Outstanding options, Forfeited or expired	(14,270)	(3,258)
Number of shares, Outstanding options, Ending balance	1,206,179	1,277,314
Number of shares, Exercisable options	777,945	796,208
Weighted average exercise price, Outstanding options, Beginning balance	$ 51.48	$ 50.14
Weighted average exercise price, Outstanding options, Granted	$ 52.36	$ 51.78
Weighted average exercise price, Outstanding options, Exercised	$ 34.81	$ 28.98
Weighted average exercise price, Outstanding options, Forfeited or expired	$ 57.19	$ 51.19
Weighted average exercise price, Outstanding options, Ending balance	$ 52.73	$ 50.98
Weighted average exercise price, Exercisable options	$ 52.21	$ 42.59
Weighted average remaining contract life, Outstanding options, Ending period	5 years 1 month 6 days	5 years 2 months 12 days
Weighted average remaining contract life, Outstanding exercisable, Ending period	3 years 4 months 24 days
Weighted average remaining contract life, Exercisable options		3 years 2 months 12 days

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Basis of Presentation - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Basis Of Presentation [Line Items]
Company mortgage loans held for sale	$ 188,037,000
Property write-downs	$ 1,154,000	$ 2,556,000
Commercial [Member]
Basis Of Presentation [Line Items]
Loss sharing indemnification agreements, term	5 years
Single family residential [Member]
Basis Of Presentation [Line Items]
Loss sharing indemnification agreements, term	10 years
IBERIABANK Corporation [Member]
Basis Of Presentation [Line Items]
Number of operating states	6
IBERIABANK Mortgage Company [Member]
Basis Of Presentation [Line Items]
Number of operating states	12

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Loans Receivable - Schedule of Loans Receivable (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Loans Receivable [Line Items]
Total loans receivable	$ 8,594,975	$ 8,498,580
Residential Mortgage Loans [Member]
Loans Receivable [Line Items]
Total loans receivable	478,617	477,204
Residential Mortgage Loans [Member] | Residential 1-4 Family [Member]
Loans Receivable [Line Items]
Total loans receivable	473,503	471,183
Residential Mortgage Loans [Member] | Construction/ Owner Occupied [Member]
Loans Receivable [Line Items]
Total loans receivable	5,114	6,021
Commercial Loans [Member]
Loans Receivable [Line Items]
Total loans receivable	6,209,336	6,169,261
Commercial Loans [Member] | Real Estate [Member]
Loans Receivable [Line Items]
Total loans receivable	3,587,692	3,631,543
Commercial Loans [Member] | Business [Member]
Loans Receivable [Line Items]
Total loans receivable	2,621,644	2,537,718
Consumer And Other Loans [Member]
Loans Receivable [Line Items]
Total loans receivable	1,907,022	1,852,115
Consumer And Other Loans [Member] | Indirect Automobile [Member]
Loans Receivable [Line Items]
Total loans receivable	342,117	327,985
Consumer And Other Loans [Member] | Home Equity [Member]
Loans Receivable [Line Items]
Total loans receivable	1,261,171	1,251,125
Consumer And Other Loans [Member] | Other [Member]
Loans Receivable [Line Items]
Total loans receivable	$ 303,734	$ 273,005

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Goodwill and Other Acquired Intangible Assets - Schedule of Definite-Lived Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Goodwill [Line Items]
Gross Carrying Amount	$ 46,754	$ 46,754
Accumulated Amortization	(27,877)	(26,694)
Net Carrying Amount	18,877	20,060
Core deposit intangibles [Member]
Goodwill [Line Items]
Gross Carrying Amount	45,406	45,406
Accumulated Amortization	(27,409)	(26,284)
Net Carrying Amount	17,997	19,122
Customer relationship intangible asset [Member]
Goodwill [Line Items]
Gross Carrying Amount	1,348	1,348
Accumulated Amortization	(468)	(410)
Net Carrying Amount	$ 880	$ 938

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Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Assets
Cash and due from banks	$ 183,158	$ 248,214
Interest-bearing deposits in banks	443,358	722,763
Total cash and cash equivalents	626,516	970,977
Securities available for sale, at fair value	1,951,548	1,745,004
Securities held to maturity, fair values of $203,100 and $211,498, respectively	198,442	205,062
Mortgage loans held for sale	188,037	267,475
Loans covered by loss share agreements	1,004,173	1,092,756
Non-covered loans, net of unearned income	7,590,802	7,405,824
Total loans, net of unearned income	8,594,975	8,498,580
Allowance for credit losses	(189,725)	(251,603)
Loans, net	8,405,250	8,246,977
FDIC loss share receivables	284,471	423,069
Premises and equipment, net	304,353	303,523
Goodwill	401,872	401,872
Other assets	590,710	565,719
Total Assets	12,951,199	13,129,678
Liabilities
Noninterest-bearing	1,971,809	1,967,662
Interest-bearing	8,714,458	8,780,615
Total deposits	10,686,267	10,748,277
Short-term borrowings	294,156	303,045
Long-term debt	323,046	423,377
Other liabilities	123,660	125,111
Total Liabilities	11,427,129	11,599,810
Shareholders' Equity
Common stock, $1 par value - 50,000,000 shares authorized; 31,917,385 shares issued	31,917	31,917
Additional paid-in capital	1,169,421	1,176,180
Retained earnings	402,094	411,472
Accumulated other comprehensive income	23,292	24,477
Treasury stock at cost - 2,225,604 and 2,427,640 shares, respectively	(102,654)	(114,178)
Total Shareholders' Equity	1,524,070	1,529,868
Total Liabilities and Shareholders' Equity	$ 12,951,199	$ 13,129,678

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Earnings Per Share - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Earnings Per Share [Abstract]
Weighted average number of shares, Recognition and Retention Plan	641,922	590,013
Weighted average number of shares, treasury stock	2,337,295	1,723,843
Stock options having antidilutive effect on earnings per share	790,431	528,719

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Consolidated Statements Of Shareholders' Equity (Parenthetical) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Statement Of Stockholders Equity [Abstract]
Cash dividends declared per share	$ 0.34	$ 0.34

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Fair Value of Financial Instruments - Estimated Fair Values and Carrying Amounts of Financial Instruments (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Financial Assets
Cash and cash equivalents	$ 626,516	$ 970,977
FDIC loss share receivable	284,471	423,069
Financial Liabilities
Deposits	10,686,267	10,748,277
Short-term borrowings	294,156	303,045
Long-term debt	323,046	423,377
Carrying Amount [Member]
Financial Assets
Cash and cash equivalents	626,516	970,977
Investment securities	2,149,990	1,950,067
Loans and loans held for sale	8,783,012	8,766,055
FDIC loss share receivable	284,471	423,069
Derivative instruments	41,208	42,119
Accrued interest receivable	32,707	32,183
Financial Liabilities
Deposits	10,686,267	10,748,277
Short-term borrowings	294,156	303,045
Long-term debt	323,046	423,377
Derivative instruments	34,383	36,890
Accrued interest payable	6,421	6,615
Fair Value [Member]
Financial Assets
Cash and cash equivalents	626,516	970,977
Investment securities	2,154,648	1,956,502
Loans and loans held for sale	8,902,016	8,800,563
FDIC loss share receivable	126,727	207,222
Derivative instruments	41,208	42,119
Accrued interest receivable	32,707	32,183
Financial Liabilities
Deposits	10,480,000	10,594,885
Short-term borrowings	294,156	303,045
Long-term debt	286,986	394,490
Derivative instruments	34,383	36,890
Accrued interest payable	$ 6,421	$ 6,615

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Loans Receivable - Schedule of FDIC Loss Share Receivable (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Loans Receivable [Line Items]
Balance	$ 423,069
Accretion (Amortization) of FDIC loss share receivable	(27,702)	(27,927)
Impairment	(31,813)
Balance	284,471
FDIC Loss Share Receivable [Member]
Loans Receivable [Line Items]
Balance	423,069	591,844
Change due to (reversal of) credit loss provision recorded on FDIC covered loans	(45,414)	684
Accretion (Amortization) of FDIC loss share receivable	(27,702)	(27,927)
Submission of reimbursable losses to the FDIC	(30,491)	(28,418)
Impairment	(31,813)
Changes due to a change in cash flow assumptions on OREO	(3,178)	1,265
Balance	$ 284,471	$ 537,448

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Other Comprehensive Income (Tables)

3 Months Ended

Mar. 31, 2013

Equity [Abstract]

Summary of Tax Effects of Each Component of Other Comprehensive Income

The following is a summary of the tax effects of each component of other comprehensive income for the three months ended March 31 for the periods indicated:

	March 31, 2013
(Dollars in thousands)	Before-Tax Amount			Tax (Expense) Benefit			Net-of-Tax Amount
Unrealized gain on securities:
Unrealized holding losses arising during the period	$	(1,994	)	$	698		$	(1,296	)
Other-than-temporary impairment realized in net income		—			—			—
Less: reclassification adjustment for gains included in net income		(2,328	)		815			(1,513	)
Net unrealized losses		(4,322	)		1,513			(2,809	)
Fair value of derivative instruments designated as cash flow hedges
Change in fair value of derivative instruments designated as cash flow hedges during the period	$	2,073		$	(725	)	$	1,348
Less: reclassification adjustment for losses included in net income		425			(149	)		276
Fair value of derivative instruments designated as cash flow hedges		2,498			(874	)		1,624
Total other comprehensive income (loss)	$	(1,824	)	$	639		$	(1,185	)

	March 31, 2012
(Dollars in thousands)	Before-Tax Amount			Tax (Expense) Benefit			Net-of-Tax Amount
Unrealized gain on securities:
Unrealized holding losses arising during the period	$	(1,056	)	$	370		$	(686	)
Other-than-temporary impairment realized in net income		—			—			—
Less: reclassification adjustment for gains included in net income		(2,800	)		980			(1,820	)
Net unrealized losses		(3,856	)		1,350			(2,506	)
Fair value of derivative instruments designated as cash flow hedges
Change in fair value of derivative instruments designated as cash flow hedges during the period	$	4,951		$	(1,733	)	$	3,218
Less: reclassification adjustment for losses (gains) included in net income		386			(135	)		251
Fair value of derivative instruments designated as cash flow hedges		5,337			(1,868	)		3,469
Total other comprehensive income	$	1,481		$	(518	)	$	963

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Allowance for Credit Losses and Credit Quality - Schedule of Allowance for Loan Losses for Covered Loans, by Loan Portfolio (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	$ 251,603	$ 193,761
(Reversal of) Provision for credit losses	(3,377)	2,857
Increase (Decrease) in FDIC loss share receivable	(45,414)	684
Transfer of balance to OREO	(11,877)	(5,363)
Loans charged off	(2,103)	(15,537)
Recoveries	893	790
Balance, end of period	189,725	177,192
Balance, end of period	8,405,250		8,246,977
Non-Covered Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	83,027	74,861
(Reversal of) Provision for credit losses	(3,406)	2,110
Transfer of balance to OREO	(559)	(6)
Loans charged off	(2,062)	(2,271)
Recoveries	893	773
Balance, end of period	77,893	75,467
Allowance on loans individually evaluated for impairment	329	1,960
Allowance on loans collectively evaluated for impairment	77,564	73,507
Balance, end of period	7,590,802	6,217,644
Balance, end of period: Loans individually evaluated for impairment	31,599	41,852
Balance, end of period: Loans collectively evaluated for impairment	7,559,203	6,175,792
Balance, end of period: Loans acquired with deteriorated credit quality	58,501	45,125
Non-Covered Loans [Member] | Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	38,264	35,604
(Reversal of) Provision for credit losses	(1,804)	(860)
Transfer of balance to OREO	(285)	(6)
Loans charged off	(413)	(803)
Recoveries	56	128
Balance, end of period	35,818	34,063
Allowance on loans individually evaluated for impairment	35	1,590
Allowance on loans collectively evaluated for impairment	35,783	32,473
Balance, end of period	3,020,071	2,580,727
Balance, end of period: Loans individually evaluated for impairment	27,271	33,952
Balance, end of period: Loans collectively evaluated for impairment	2,992,800	2,546,775
Balance, end of period: Loans acquired with deteriorated credit quality	50,503	15,292
Non-Covered Loans [Member] | Commercial Business [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	28,721	25,705
(Reversal of) Provision for credit losses	(646)	2,065
Transfer of balance to OREO
Loans charged off	(225)	(31)
Recoveries	188	31
Balance, end of period	28,038	27,770
Allowance on loans individually evaluated for impairment	116	202
Allowance on loans collectively evaluated for impairment	27,922	27,568
Balance, end of period	2,534,612	2,020,510
Balance, end of period: Loans individually evaluated for impairment	2,958	6,486
Balance, end of period: Loans collectively evaluated for impairment	2,531,654	2,014,024
Balance, end of period: Loans acquired with deteriorated credit quality	3,339	24,193
Non-Covered Loans [Member] | Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	13,917	12,655
(Reversal of) Provision for credit losses	(1,374)	1,024
Transfer of balance to OREO	(7)
Loans charged off	(1,183)	(1,274)
Recoveries	618	604
Balance, end of period	11,971	13,009
Allowance on loans individually evaluated for impairment	41
Allowance on loans collectively evaluated for impairment	11,930	13,009
Balance, end of period	1,734,830	1,353,404
Balance, end of period: Loans individually evaluated for impairment	312	228
Balance, end of period: Loans collectively evaluated for impairment	1,734,518	1,353,176
Balance, end of period: Loans acquired with deteriorated credit quality	4,276	5,640
Non-Covered Loans [Member] | Mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	2,125	897
(Reversal of) Provision for credit losses	418	(119)
Transfer of balance to OREO	(267)
Loans charged off	(241)	(163)
Recoveries	31	10
Balance, end of period	2,066	625
Allowance on loans individually evaluated for impairment	137	168
Allowance on loans collectively evaluated for impairment	1,929	457
Balance, end of period	301,289	263,003
Balance, end of period: Loans individually evaluated for impairment	1,058	1,186
Balance, end of period: Loans collectively evaluated for impairment	300,231	261,817
Balance, end of period: Loans acquired with deteriorated credit quality	383
Non-Covered Loans [Member] | Unallocated [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period
(Reversal of) Provision for credit losses
Transfer of balance to OREO
Loans charged off
Recoveries
Balance, end of period
Allowance on loans individually evaluated for impairment
Allowance on loans collectively evaluated for impairment
Balance, end of period
Balance, end of period: Loans individually evaluated for impairment
Balance, end of period: Loans collectively evaluated for impairment
Balance, end of period: Loans acquired with deteriorated credit quality
Covered Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	168,576	118,900
(Reversal of) Provision for credit losses	29	747
Increase (Decrease) in FDIC loss share receivable	(45,414)	684
Transfer of balance to OREO	(11,318)	(5,357)
Loans charged off	(41)	(13,266)
Recoveries		17
Balance, end of period	111,832	101,725
Allowance on loans individually evaluated for impairment
Allowance on loans collectively evaluated for impairment	111,832	101,725
Balance, end of period	1,004,173	1,260,662
Balance, end of period: Loans individually evaluated for impairment
Balance, end of period: Loans collectively evaluated for impairment	1,004,173	1,260,662
Balance, end of period: Loans acquired with deteriorated credit quality	190,837	247,125
Covered Loans [Member] | Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	100,871	69,175
(Reversal of) Provision for credit losses	29	1,386
Increase (Decrease) in FDIC loss share receivable	(23,001)	1,268
Transfer of balance to OREO	(9,729)	(3,179)
Loans charged off	(41)	(13,126)
Recoveries		14
Balance, end of period	68,129	55,538
Allowance on loans individually evaluated for impairment
Allowance on loans collectively evaluated for impairment	68,129	55,538
Balance, end of period	567,621	725,470
Balance, end of period: Loans individually evaluated for impairment
Balance, end of period: Loans collectively evaluated for impairment	567,621	725,470
Balance, end of period: Loans acquired with deteriorated credit quality	146,932	184,830
Covered Loans [Member] | Commercial Business [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	11,375	9,788
(Reversal of) Provision for credit losses		794
Increase (Decrease) in FDIC loss share receivable	(1,601)	728
Transfer of balance to OREO		(4)
Loans charged off
Recoveries
Balance, end of period	9,774	11,306
Allowance on loans individually evaluated for impairment
Allowance on loans collectively evaluated for impairment	9,774	11,306
Balance, end of period	87,032	104,102
Balance, end of period: Loans individually evaluated for impairment
Balance, end of period: Loans collectively evaluated for impairment	87,032	104,102
Balance, end of period: Loans acquired with deteriorated credit quality	2,832	4,005
Covered Loans [Member] | Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	33,764	18,753
(Reversal of) Provision for credit losses		578
Increase (Decrease) in FDIC loss share receivable	(15,905)	529
Transfer of balance to OREO		(797)
Loans charged off		(9)
Recoveries		3
Balance, end of period	17,859	19,057
Allowance on loans individually evaluated for impairment
Allowance on loans collectively evaluated for impairment	17,859	19,057
Balance, end of period	172,192	194,539
Balance, end of period: Loans individually evaluated for impairment
Balance, end of period: Loans collectively evaluated for impairment	172,192	194,539
Balance, end of period: Loans acquired with deteriorated credit quality	22,685	27,596
Covered Loans [Member] | Unallocated [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period
(Reversal of) Provision for credit losses
Increase (Decrease) in FDIC loss share receivable
Transfer of balance to OREO
Loans charged off
Recoveries
Balance, end of period
Allowance on loans individually evaluated for impairment
Allowance on loans collectively evaluated for impairment
Balance, end of period
Balance, end of period: Loans individually evaluated for impairment
Balance, end of period: Loans collectively evaluated for impairment
Balance, end of period: Loans acquired with deteriorated credit quality
Covered Loans [Member] | Mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	22,566	21,184
(Reversal of) Provision for credit losses		(2,011)
Increase (Decrease) in FDIC loss share receivable	(4,907)	(1,841)
Transfer of balance to OREO	(1,589)	(1,377)
Loans charged off		(131)
Recoveries
Balance, end of period	16,070	15,824
Allowance on loans individually evaluated for impairment
Allowance on loans collectively evaluated for impairment	16,070	15,824
Balance, end of period	177,328	236,551
Balance, end of period: Loans individually evaluated for impairment
Balance, end of period: Loans collectively evaluated for impairment	177,328	236,551
Balance, end of period: Loans acquired with deteriorated credit quality	$ 18,388	$ 30,694

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Fair Value Measurements

3 Months Ended

Mar. 31, 2013

Fair Value Disclosures [Abstract]

Fair Value Measurements

NOTE 15 – FAIR VALUE MEASUREMENTS

The Company has segregated all financial assets and liabilities that are measured at fair value on a recurring basis into the most appropriate level within the fair value hierarchy based on the inputs used to estimate the fair value at the measurement date in the tables below.

(Dollars in thousands)			Fair Value Measurements Using
Recurring Basis Description	March 31,   2013		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Available -for-sale securities	$	1,951,548	$	35,008	$	1,916,540	$	—
Derivative instruments		41,208		—		41,208		—
Total	$	1,992,756	$	35,008	$	1,957,748	$	—
Liabilities
Derivative instruments		34,383		—		34,383		—
Total	$	34,383	$	—	$	34,383	$	—

(Dollars in thousands)			Fair Value Measurements Using
Recurring Basis Description	December 31, 2012		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Available -for-sale securities	$	1,745,004	$	—	$	1,745,004	$	—
Derivative instruments		42,119		—		42,119		—
Total	$	1,787,123	$	—	$	1,787,123	$	—
Liabilities
Derivative instruments		36,890		—		36,890		—
Total	$	36,890	$	—	$	36,890	$	—

During the first quarter of 2013, available for sale securities with a market value of $35,008,000 at March 31, 2013 were transferred into the Level 1 fair value measurement category in the table above from the Level 2 category as disclosed at December 31, 2012. The securities were included in the Level 1 category at March 31, 2013 because their fair value was based on a quoted market price in an active market for an identical asset.

Gains and losses (realized and unrealized) included in earnings (or changes in net assets) for the first three months of 2013 related to assets and liabilities measured at fair value on a recurring basis are reported in noninterest income or other comprehensive income as follows:

(Dollars in thousands)	Noninterest income			Other comprehensive income
Total gains (losses) included in earnings (or changes in net assets)	$	(3,012	)	$	—
Change in unrealized gains (losses) relating to assets still held at December 31, 2012		—			(468	)

The Company has segregated all financial assets and liabilities that are measured at fair value on a nonrecurring basis into the most appropriate level within the fair value hierarchy based on the inputs used to determine the fair value at the measurement date in the tables below.

(Dollars in thousands)			Fair Value Measurements Using
Nonrecurring Basis Description	March 31,   2013		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Loans	$	6,295	$	—	$	6,295	$	—
Mortgage loans held for sale		46,966		—		46,966		—
OREO		23,710		—		23,710		—
Total	$	76,971	$	—	$	76,971	$	—

(Dollars in thousands)			Fair Value Measurements Using
Nonrecurring Basis Description	December 31, 2012		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Loans	$	6,388	$	—	$	6,388	$	—
Mortgage loans held for sale		32,753		—		32,753		—
OREO		20,427		—		20,427		—
Total	$	59,568	$	—	$	59,568	$	—

The tables above exclude the initial measurement of assets and liabilities that were acquired as part of the Florida Gulf, OMNI, Cameron, and Florida Trust Company acquisitions completed in 2012 and 2011. These assets and liabilities were recorded at their fair value upon acquisition in accordance with generally-accepted accounting principles and were not re-measured during the periods presented unless specifically required by generally accepted accounting principles. Acquisition date fair values represent either Level 2 fair value measurements (investment securities, OREO, property, equipment, and debt) or Level 3 fair value measurements (loans, deposits, and core deposit intangible asset).

In accordance with the provisions of ASC Topic 310, the Company records loans considered impaired at their estimated fair value. A loan is considered impaired if it is probable the Company will be unable to collect all amounts due according to the contractual terms of the loan agreement. Fair value is measured at the estimated fair value of the collateral for collateral-dependent loans. Impaired non-covered loans with an outstanding balance of $6,624,000 were recorded at their fair value at March 31, 2013. These loans include a reserve of $329,000 included in the Company’s allowance for credit losses at March 31, 2013. Impaired non-covered loans with an outstanding balance of $7,269,000 were recorded at their fair value at December 31, 2012. These loans include a reserve of $880,000 included in the Company’s allowance for credit losses at December 31, 2012.

The Company did not record any liabilities at fair value for which measurement of the fair value was made on a nonrecurring basis during the three months ended March 31, 2013 and 2012.

The Company may elect the fair value option, which permits the Company to choose to measure eligible financial assets and liabilities at fair value at specified election dates and recognize prospective changes in unrealized gains and losses on items for which the fair value option has been elected in earnings at each reporting date. The Company has currently chosen not to elect the fair value option for any items that are not already required to be measured at fair value in accordance with generally accepted accounting principles, and as such has not included any gains or losses in earnings for the three months ended March 31, 2013 and 2012.

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Share-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2013

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Compensation Expense Included in Salaries and Employee Benefits Expense and Related Income Tax Benefits

The following table represents the compensation expense that is included in salaries and employee benefits expense and related income tax benefits in the accompanying consolidated statements of comprehensive income related to stock options for the three months ended March 31, 2013 and 2012.

(Dollars in thousands, except per share data)	2013		2012
Compensation expense related to stock options	$	533	$	442
Income tax benefit related to stock options		187		155
Impact on basic earnings per share		0.01		0.01
Impact on diluted earnings per share		0.01		0.01

Estimate Fair Value of Share-Based Awards with Weighted-Average Assumptions

The Company uses the Black-Scholes option pricing model to estimate the fair value of share-based awards. The following weighted-average assumptions were used for option awards granted during the three-month periods ended March 31:

	2013			2012
Expected dividends		2.6	%		2.6	%
Expected volatility		34.8	%		41.0	%
Risk-free interest rate		1.7	%		0.9	%
Expected term (in years)		8.6			5.0
Weighted-average grant-date fair value	$	15.37		$	14.74

Activity Related to Stock Options

The following table represents the activity related to stock options during the three months ended March 31, 2013 and 2012.

	Number of shares			Weighted average exercise price		Weighted average remaining contract life
Outstanding options, December 31, 2011		1,097,620		$	50.14
Granted		217,230			51.78
Exercised		(34,278	)		28.98
Forfeited or expired		(3,258	)		51.19
Outstanding options, March 31, 2012		1,277,314		$	50.98		5.2 years
Exercisable options, March 31, 2012		796,208			42.59		3.2 years
Outstanding options, December 31, 2012		1,236,075		$	51.48
Granted		75,722			52.36
Exercised		(91,348	)		34.81
Forfeited or expired		(14,270	)		57.19
Outstanding options, March 31, 2013		1,206,179		$	52.73		5.1 Years
Outstanding exercisable at March 31, 2013		777,945		$	52.21		3.4 Years

Compensation Expense Included in Salaries and Employee Benefits Expense Related to Restricted Stock Grants

The following table represents the compensation expense that was included in salaries and employee benefits expense in the accompanying consolidated statements of income related to restricted stock grants for the three months ended March 31:

(Dollars in thousands)	2013		2012
Compensation expense related to restricted stock	$	1,877	$	1,710

Unvested Restricted Stock Award Activity

The following table represents unvested restricted stock award activity for the three months ended March 31, 2013 and 2012:

	2013			2012
Balance, beginning of year		538,202			512,112
Granted		148,518			134,988
Forfeited		(11,673	)		(3,055	)
Earned and issued		(89,366	)		(74,928	)
Balance, end of year		585,681			569,117

Schedule of Share and Dividend Equivalent Share Award Activity

The following table represents phantom stock award activity during the periods indicated. During the three months ended March 31, 2013 and 2012, the Company recorded $699,000 and $751,000, respectively, in compensation expense based on the number of share equivalents vested at the end of the period and the current market price of the Company’s stock.

	Number of share equivalents			Dividend equivalents			Total share equivalents			Value of share equivalents(1)
Balance, December 31, 2011		232,921			8,942			241,863		$	11,924,000
Granted		97,927			2,109			100,036			5,349,000
Forfeited share equivalents		(2,191	)		(95	)		(2,286	)		(122,000	)
Vested share equivalents		(5,483	)		(350	)		(5,833	)		(309,000	)
Balance, March 31, 2012		323,174			10,606			333,780		$	17,847,000
Balance, December 31, 2012		318,729			16,035			334,764		$	16,444,000
Granted		158,213			3,092			161,305			8,068,000
Forfeited share equivalents		(5,176	)		(243	)		(5,419	)		(271,000	)
Vested share equivalents		(30,697	)		(2,120	)		(32,817	)		(1,655,000	)
Balance, March 31, 2013		441,069			16,764			457,833		$	22,901,000

(1) Except for vested share payments, which are based on the cash paid at the time of vesting, the value of share equivalents is calculated based on the market price of the Company’s stock at the end of the respective periods. The market price of the Company’s stock was $50.02 and $53.47 on March 31, 2013 and 2012, respectively.

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Subsequent Events

3 Months Ended

Mar. 31, 2013

Subsequent Events [Abstract]

Subsequent Events

NOTE 17 – SUBSEQUENT EVENTS

On April 25, 2013, the Company announced certain expense reduction initiatives, including the planned closure or consolidation of nine branches. The Company expects the expense initiatives to incur one-time costs and reduce net expenses in the near term and does not expect a material impact to financial position or liquidity.

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Transfers and Servicing of Financial Assets (Including Mortgage Banking Activity) - Components of Mortgage Banking Activity (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Mortgage Loan Activity [Line Items]
Balance, beginning of period	$ 267,475
Originations	536,673
Sales	(634,540)
Balance, end of period	188,037
Gains on sales	18,429
Total mortgage income	18,931	13,718
Mortgage loans held for sale [Member]
Mortgage Loan Activity [Line Items]
Balance, beginning of period	267,475	153,013
Balance acquired during the period
Originations	536,673	450,644
Sales	(616,111)	(475,532)
Balance, end of period	188,037	128,125
Mortgage income [Member]
Mortgage Loan Activity [Line Items]
Fair value changes of derivatives and mortgage loans held for sale, net	364	56
Gains on sales	18,429	13,563
Servicing and other income, net	138	99
Total mortgage income	$ 18,931	$ 13,718

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Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Cash Flows from Operating Activities
Net income	$ 717	$ 19,393
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	6,899
Amortization of purchase accounting adjustments, net	(6,358)
(Reversal of) provision for credit losses	(3,377)	2,857
Noncash compensation expense	2,512	2,250
(Gain) loss on sale of assets	(47)
Gain on sale of available for sale investments	(2,328)
Gain on sale of OREO	(1,387)
Impairment of FDIC loss share receivables	31,813
Amortization of premium/discount on investments	5,600
Derivative losses (gains) on swaps	1
(Benefit) provision for deferred income taxes	123
Mortgage loans held for sale
Originations	(536,673)
Proceeds from sales	634,540
Gain on sale of loans, net	(18,429)
Cash retained from tax benefit associated with share-based payment arrangements	(330)
(Increase) decrease in other assets	(9,368)
Other operating activities, net	4,424
Net Cash Provided by Operating Activities	108,332
Cash Flows from Investing Activities
Proceeds from sales of securities available for sale	19,234
Proceeds from maturities, prepayments and calls of securities available for sale	288,650
Purchases of securities available for sale	(548,154)
Proceeds from maturities, prepayments and calls of securities held to maturity	8,724
Purchases of securities held to maturity	(2,412)
FDIC reimbursement of recoverable covered asset losses	37,903
Increase in loans receivable, net, excluding loans acquired	(101,684)
Proceeds from sale of premises and equipment	105
Purchases of premises and equipment	(6,019)
Proceeds from disposition of real estate owned	17,719
Investment in new market tax credit entities
Cash received in excess of cash paid for acquisition
Other investing activities, net	11,244
Net Cash Used in Investing Activities	(274,690)
Cash Flows from Financing Activities
(Decrease) increase in deposits, net of deposits acquired	(61,823)
Net change in short-term borrowings, net of borrowings acquired	(8,889)
Repayments of long-term debt	(99,617)
Dividends paid to shareholders	(10,027)
Proceeds from sale of treasury stock for stock options exercised	3,181	1,111
Payments to repurchase common stock	(1,258)
Cash retained from tax benefit associated with share-based payment arrangements	330	268
Net Cash (Used in) Provided by Financing Activities	(178,103)
Net (Decrease) Increase In Cash and Cash Equivalents	(344,461)
Cash and Cash Equivalents at Beginning of Period	970,977
Cash and Cash Equivalents at End of Period	626,516
Supplemental Schedule of Noncash Activities
Acquisition of real estate in settlement of loans	26,633
Transfers of property into Other Real Estate	26,633
Supplemental Disclosures
Interest on deposits and borrowings	13,739
Income taxes, net	3,127
Restated [Member]
Cash Flows from Operating Activities
Net income		19,393
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization		4,919
Amortization of purchase accounting adjustments, net		(10,765)
(Reversal of) provision for credit losses		2,857
Noncash compensation expense		2,250
(Gain) loss on sale of assets		25
Gain on sale of available for sale investments		(2,800)
Gain on sale of OREO		(1,313)
Amortization of premium/discount on investments		4,874
(Benefit) provision for deferred income taxes		356
Mortgage loans held for sale
Originations		(450,644)
Proceeds from sales		489,095
Gain on sale of loans, net		(13,563)
Cash retained from tax benefit associated with share-based payment arrangements		(268)
(Increase) decrease in other assets		4,884
Other operating activities, net		5,627
Net Cash Provided by Operating Activities		54,927
Cash Flows from Investing Activities
Proceeds from sales of securities available for sale		81,793
Proceeds from maturities, prepayments and calls of securities available for sale		355,275
Purchases of securities available for sale		(448,487)
Proceeds from maturities, prepayments and calls of securities held to maturity		5,611
Purchases of securities held to maturity		(3,222)
FDIC reimbursement of recoverable covered asset losses		36,926
Increase in loans receivable, net, excluding loans acquired		(102,302)
Proceeds from sale of premises and equipment		309
Purchases of premises and equipment		(10,289)
Proceeds from disposition of real estate owned		28,484
Investment in new market tax credit entities
Cash received in excess of cash paid for acquisition
Other investing activities, net		8,224
Net Cash Used in Investing Activities		(47,678)
Cash Flows from Financing Activities
(Decrease) increase in deposits, net of deposits acquired		172,927
Net change in short-term borrowings, net of borrowings acquired		(129,054)
Proceeds from long-term debt		220
Repayments of long-term debt		(22,268)
Dividends paid to shareholders		(9,988)
Proceeds from sale of treasury stock for stock options exercised		1,111
Payments to repurchase common stock		(980)
Cash retained from tax benefit associated with share-based payment arrangements		268
Net Cash (Used in) Provided by Financing Activities		12,236
Net (Decrease) Increase In Cash and Cash Equivalents		19,485
Cash and Cash Equivalents at Beginning of Period		573,296
Cash and Cash Equivalents at End of Period		592,781
Supplemental Schedule of Noncash Activities
Acquisition of real estate in settlement of loans		31,338
Transfers of property into Other Real Estate		31,338
Supplemental Disclosures
Interest on deposits and borrowings		18,109
Income taxes, net		$ 2,504

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Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Statement Of Financial Position [Abstract]
Securities held to maturity, fair values	$ 203,100	$ 211,498
Common stock, par value	$ 1	$ 1
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued	31,917,385	31,917,385
Treasury stock, shares	2,225,604	2,427,640

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Other Real Estate Owned

3 Months Ended

Mar. 31, 2013

Banking And Thrift [Abstract]

Other Real Estate Owned

NOTE 10 – OTHER REAL ESTATE OWNED

Other real estate owned consists of the following at March 31, 2013 and December 31, 2012:

(Dollars in thousands)	March 31, 2013		December 31, 2012
Real estate owned acquired by foreclosure	$	121,262	$	110,864
Real estate acquired for development or resale		9,199		9,199
Other foreclosed property		1,375		1,473
Total other real estate owned and foreclosed property	$	131,836	$	121,536

At March 31, 2013 and December 31, 2012, other real estate owned is segregated into covered and non-covered properties as follows:

(Dollars in thousands)
March 31, 2013	Non-covered properties		Covered properties		Total
Real estate owned acquired by foreclosure	$	33,391	$	87,871	$	121,262
Real estate acquired for development or resale		9,199		—		9,199
Other foreclosed property		48		1,327		1,375
Total other real estate owned and foreclosed property	$	42,638	$	89,198	$	131,836

(Dollars in thousands)
December 31, 2012	Non-covered properties		Covered properties		Total
Real estate owned acquired by foreclosure	$	35,080	$	75,784	$	110,864
Real estate acquired for development or resale		9,199		—		9,199
Other foreclosed property		14		1,459		1,473
Total other real estate owned and foreclosed property	$	44,293	$	77,243	$	121,536

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Fair Value Measurements - Financial Assets and Liabilities Measured at Fair Value on Nonrecurring Basis (Detail) (Fair Value, Measurements, Nonrecurring [Member], USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Fair Value Measurements [Line Items]
Loans, Assets	$ 6,295	$ 6,388
Mortgage loans held for sale, Assets	46,966	32,753
OREO, Assets	23,710	20,427
Total, Assets	76,971	59,568
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value Measurements [Line Items]
Loans, Assets
Mortgage loans held for sale, Assets
OREO, Assets
Total, Assets
Significant Other Observable Inputs (Level 2) [Member]
Fair Value Measurements [Line Items]
Loans, Assets	6,295	6,388
Mortgage loans held for sale, Assets	46,966	32,753
OREO, Assets	23,710	20,427
Total, Assets	76,971	59,568
Significant Unobservable Inputs (Level 3) [Member]
Fair Value Measurements [Line Items]
Loans, Assets
Mortgage loans held for sale, Assets
OREO, Assets
Total, Assets

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Fair Value Measurements - Additional Information (Detail) (USD $)	Mar. 31, 2013	Dec. 31, 2012
Fair Value Disclosures [Abstract]
Fair value Level 2 to Level 1 transfers amount	$ 35,008,000
Impaired non-covered loans with an outstanding balance	6,624,000	7,269,000
Reserve in allowance for credit losses	$ 329,000	$ 880,000

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Document and Entity Information	3 Months Ended
	Mar. 31, 2013	Apr. 30, 2013
Document Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2013
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	Q1
Trading Symbol	IBKC
Entity Registrant Name	IBERIABANK CORP
Entity Central Index Key	0000933141
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		29,690,980

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Derivative Instruments and Other Hedging Activities

3 Months Ended

Mar. 31, 2013

Derivative Instruments And Hedging Activities Disclosure [Abstract]

Derivative Instruments and Other Hedging Activities

NOTE 11 – DERIVATIVE INSTRUMENTS AND OTHER HEDGING ACTIVITIES

At March 31, 2013 and December 31, 2012, the information pertaining to outstanding derivative instruments is as follows.

		Asset Derivatives					Liability Derivatives
(Dollars in thousands)	Balance Sheet Location	Fair Value				Balance Sheet Location	Fair Value
		March 31, 2013		December 31, 2012			March 31, 2013		December 31, 2012
Derivatives designated as hedging instruments under ASC Topic 815
Interest rate contracts	Other assets	$	1,744	$	499	Other liabilities	$	590	$	1,843
Total derivatives designated as hedging instruments under ASC Topic 815		$	1,744	$	499		$	590	$	1,843
Derivatives not designated as hedging instruments under ASC Topic 815
Interest rate contracts	Other assets	$	22,058	$	25,940	Other liabilities	$	22,059	$	25,940
Forward sales contracts	Other assets		593		2,774	Other liabilities		774		343
Written and purchased options	Other assets		16,813		12,906	Other liabilities		10,749		8,764
Total derivatives not designated as hedging instruments under ASC Topic 815		$	39,464	$	41,620		$	33,582	$	35,047

	Asset Derivatives				Liability Derivatives
(Dollars in thousands)	Notional Amount				Notional Amount
	March 31, 2013		December 31, 2012		March 31, 2013		December 31, 2012
Derivatives designated as hedging instruments under ASC Topic 815
Interest rate contracts	$	35,000	$	35,000	$	35,000	$	35,000
Total derivatives designated as hedging instruments under ASC Topic 815	$	35,000	$	35,000	$	35,000	$	35,000
Derivatives not designated as hedging instruments under ASC Topic 815
Interest rate contracts	$	361,679	$	374,536	$	361,679	$	374,536
Forward sales contracts		66,247		212,028		116,609		53,269
Written and purchased options		434,079		388,793		194,376		185,885
Total derivatives not designated as hedging instruments under ASC Topic 815	$	862,005	$	975,357	$	672,664	$	613,690

The Company is party to collateral agreements with certain derivative counterparties. Such agreements require that the Company maintain collateral based on the fair values of individual derivative transactions. In the event of default by the Company on the related obligation, the counterparty would be entitled to the collateral.

At March 31, 2013 and December 31, 2012, the Company was required to post $2,650,000 in cash as collateral for its derivative transactions, which is included in interest-bearing deposits in banks on the Company’s consolidated balance sheets. The Company does not anticipate additional assets will be required to be posted as collateral, nor does it believe additional assets would be required to settle its derivative instruments immediately if contingent features were triggered at March 31, 2013. The Company’s master netting agreements represent written, legally enforceable bilateral agreements that (1) create a single legal obligation for all individual transactions covered by the agreement to the non-defaulting entity upon an event of default of the counterparty, including bankruptcy, insolvency, or similar proceeding, and (2) provide the non-defaulting entity the right to accelerate, terminate, and close-out on a net basis all transactions under the agreement and to liquidate or set-off collateral promptly upon an event of default of the counterparty. As permitted by generally-accepted accounting principles, the Company does not offset fair value amounts recognized for the right to reclaim cash collateral or the obligation to return cash collateral against recognized fair value amounts of derivatives executed with the same counterparty under a master netting agreement.

The following table reconciled the gross amounts presented in the consolidated balance sheet to the net amounts that would result in the event of offset as of March 31, 2013 and December 31, 2012.

	March 31, 2013
(Dollars in thousands)	Gross Amounts Presented in the Balance Sheet		Gross Amounts Not  Offset in the Balance Sheet						Net Amount
			Derivatives			Collateral(1)
Derivatives subject to master netting arrangements
Derivative assets
Interest rate contracts designated as hedging instruments	$	1,744	$	(185	)	$	—		$	1,559
Interest rate contracts not designated as hedging instruments		22,058		—			—			22,058
Written and purchased options		10,702		—			—			10,702
Total derivative assets subject to master netting arrangements	$	34,504	$	(185	)	$	—		$	34,319
Derivative liabilities
Interest rate contracts designated as hedging instruments		590		(185	)		—			405
Interest rate contracts not designated as hedging instruments		22,059		—			(12,317	)		9,742
Total derivative liabilities subject to master netting arrangements	$	22,649	$	(185	)	$	(12,317	)	$	10,147

(1) Consists of cash collateral recorded at cost, which approximates fair value, and investment securities.

	December 31, 2012
(Dollars in thousands)	Gross Amounts Presented in the Balance Sheet		Gross Amounts Not  Offset in the Balance Sheet
			Derivatives			Collateral(1)			Net Amount
Derivatives subject to master netting arrangements
Derivative assets
Interest rate contracts designated as hedging instruments	$	499	$	(499	)	$	—		$	—
Interest rate contracts not designated as hedging instruments		25,940		—			—			25,940
Written and purchased options		8,763		—			—			8,763
Total derivative assets subject to master netting arrangements	$	35,202	$	(499	)	$	—		$	34,703
Derivative liabilities
Interest rate contracts designated as hedging instruments		1,843		(499	)		—			1,344
Interest rate contracts not designated as hedging instruments		25,940		—			(13,350	)		12,590
Total derivative liabilities subject to master netting arrangements	$	27,783	$	(499	)	$	(13,350	)	$	13,934

(1) Consists of cash collateral recorded at cost, which approximates fair value, and investment securities.

During the three months ended March 31, 2013 and 2012, the Company has not reclassified into earnings any gain or loss as a result of the discontinuance of cash flow hedges because it was probable the original forecasted transaction would not occur by the end of the originally specified term.

At March 31, 2013, the fair value of derivatives that will mature within the next twelve months is $563,000. The Company does not expect to reclassify any amount from accumulated other comprehensive income into interest income over the next twelve months for derivatives that will be settled.

At March 31, 2013 and 2012, and for the three months then ended, the information pertaining to the effect of the hedging instruments on the consolidated financial statements is as follows.

(Dollars in thousands)	Amount of Gain (Loss) Recognized in OCI, net of taxes (Effective Portion)				Location of Gain (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	Amount of Gain (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)						Location of Gain (Loss) Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)	Amount of Gain (Loss) Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)
Derivatives in ASC Topic 815 Cash Flow Hedging Relationships	2013		2012			2013			2012				2013		2012
Interest rate contracts	$	751	$	1,558	Other income (expense)	$	(424	)	$	(386	)	Other income (expense)	$	—	$	—
Total	$	751	$	1,558		$	(424	)	$	(386	)		$	—	$	—

(Dollars in thousands)	Location of Gain (Loss) Recognized in Income on Derivatives	Amount of Gain (Loss) Recognized in Income on Derivatives
Derivatives Not Designated as Hedging Instruments under ASC Topic 815		2013			2012
Interest rate contracts	Other income (expense)	$	(1	)	$	—
Forward sales contracts	Mortgage income		(2,912	)		—
Written and purchased options	Mortgage income		1,085			56
Total		$	(1,828	)	$	56

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Share-Based Compensation - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2013 Y	Mar. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation maximum option term (in years)	10
Future awards shares under approved incentive compensation plans	485,197
Minimum vesting period (in years)	1.5
Maximum vesting period (in years)	7
Excess tax benefits as financing cash inflows	$ 330,000	$ 268,000
Net cash proceeds from exercise of stock options	3,181,000	1,111,000
Aggregate intrinsic value of shares underlying outstanding stock options	1,671,000
Aggregate intrinsic value of shares underlying exercisable stock options	1,618,000
Total intrinsic value of options exercised	1,350,000	804,000
Compensation expense based on the number of share equivalents vested	699,000	751,000
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unearned compensation vesting period (in years)	7
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unearned compensation vesting period (in years)	3
Phantom Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Minimum vesting period (in years)	5
Maximum vesting period (in years)	7
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unearned share-based compensation associated with awards	5,720,000
Unrecognized compensation cost related to stock options expected to be recognized over a weighted-average period	5 years 1 month 6 days
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unearned share-based compensation associated with awards	$ 27,628,000

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Fair Value Measurements - Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) (Fair Value, Measurements, Recurring [Member], USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale securities, Assets	$ 1,951,548	$ 1,745,004
Derivative instruments, Assets	41,208	42,119
Total, Assets	1,992,756	1,787,123
Derivative instruments, Liabilities	34,383	36,890
Total, Liabilities	34,383	36,890
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale securities, Assets	35,008
Derivative instruments, Assets
Total, Assets	35,008
Derivative instruments, Liabilities
Total, Liabilities
Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale securities, Assets	1,916,540	1,745,004
Derivative instruments, Assets	41,208	42,119
Total, Assets	1,957,748	1,787,123
Derivative instruments, Liabilities	34,383	36,890
Total, Liabilities	34,383	36,890
Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale securities, Assets
Derivative instruments, Assets
Total, Assets
Derivative instruments, Liabilities
Total, Liabilities

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Consolidated Statements of Comprehensive Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Interest and Dividend Income
Loans, including fees	$ 123,067	$ 123,934
Mortgage loans held for sale, including fees	1,325	1,049
Investment securities:
Taxable interest	7,105	9,538
Tax-exempt interest	1,756	1,917
Amortization of FDIC loss share receivable	(27,702)	(27,927)
Other	865	676
Total interest and dividend income	106,416	109,187
Interest Expense
NOW and MMDA	5,406	6,146
Savings	94	149
Time deposits	4,654	7,666
Short-term borrowings	141	142
Long-term debt	3,250	3,223
Total interest expense	13,545	17,326
Net interest income	92,871	91,861
(Reversal of) provision for credit losses	(3,377)	2,857
Net interest income after provision for credit losses	96,248	89,004
Noninterest Income
Service charges on deposit accounts	6,797	5,980
Mortgage income	18,931	13,718
Title revenue	5,021	4,533
ATM/debit card fee income	2,183	2,024
Income from bank owned life insurance	939	951
Gain (loss) on sale of assets	47	(25)
Gain on sale of available for sale investments	2,328	2,800
Derivative losses reclassified from other comprehensive income	(425)	(386)
Broker commissions	3,534	3,060
Other income	5,136	4,741
Total noninterest income	44,491	37,396
Noninterest Expense
Salaries and employee benefits	62,529	54,819
Net occupancy and equipment	15,195	12,719
Impairment of FDIC loss share receivables	31,813
Franchise and shares tax	1,220	1,020
Communication and delivery	3,271	3,133
Marketing and business development	3,087	3,022
Data processing	3,992	3,176
Printing, stationery and supplies	757	790
Amortization of acquisition intangibles	1,183	1,290
Professional services	4,418	4,100
Net costs of OREO property	972	2,684
Credit and other loan related expense	3,739	4,027
Insurance	2,501	2,609
Travel and entertainment	2,268	2,124
Other expenses	7,953	4,361
Total noninterest expense	144,898	99,873
Income (loss) before income tax expense	(4,159)	26,527
Income tax expense (benefit)	(4,876)	7,134
Net Income	717	19,393
Income Available to Common Shareholders - Basic	717	19,393
Earnings Allocated to Unvested Restricted Stock		(364)
Earnings Available to Common Shareholders - Diluted	717	19,029
Earnings per common share - Basic	$ 0.02	$ 0.66
Earnings per common share - Diluted	$ 0.02	$ 0.66
Cash dividends declared per common share	$ 0.34	$ 0.34
Unrealized gains on securities:
Unrealized holding gains (losses) arising during the period	(1,994)	(1,056)
Other than temporary impairment realized in net income
Less: reclassification adjustment for gains included in net income	(2,328)	(2,800)
Unrealized (loss) gain on securities, before tax	(4,322)	(3,856)
Fair value of derivative instruments designated as cash flow hedges:
Change in fair value of derivative instruments designated as cash flow hedges during the period	2,073	4,951
Less: reclassification adjustment for losses (gains) included in net income	425	386
Fair value of derivative instruments designated as cash flow hedges, before tax	2,498	5,337
Other comprehensive income (loss), before tax	(1,824)	1,481
Income tax expense (benefit) related to items of other comprehensive income	(639)	518
Other comprehensive income (loss), net of tax	(1,185)	963
Comprehensive income (loss)	$ (468)	$ 20,356

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Investment Securities

3 Months Ended

Mar. 31, 2013

Investments Debt And Equity Securities [Abstract]

Investment Securities

NOTE 5 – INVESTMENT SECURITIES

The amortized cost and fair values of investment securities, with gross unrealized gains and losses, consist of the following:

(Dollars in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
March 31, 2013
Securities available for sale:
U.S. Government-sponsored enterprise obligations	$	526,440	$	4,698	$	(298	)	$	530,840
Obligations of state and political subdivisions		117,199		5,826		(179	)		122,846
Mortgage backed securities		1,272,646		25,531		(1,853	)		1,296,324
Other securities		1,460		78		—			1,538
Total securities available for sale	$	1,917,745	$	36,133	$	(2,330	)	$	1,951,548
Securities held to maturity:
U.S. Government-sponsored enterprise obligations	$	69,951	$	1,016	$	—		$	70,967
Obligations of state and political subdivisions		85,723		3,867		(232	)		89,358
Mortgage backed securities		42,768		453		(446	)		42,775
Total securities held to maturity	$	198,442	$	5,336	$	(678	)	$	203,100
December 31, 2012
Securities available for sale:
U.S. Government-sponsored enterprise obligations	$	281,746	$	4,364	$	(386	)	$	285,724
Obligations of state and political subdivisions		120,680		6,573		(178	)		127,075
Mortgage backed securities		1,303,030		29,108		(1,482	)		1,330,656
Other securities		1,460		89		—			1,549
Total securities available for sale	$	1,706,916	$	40,134	$	(2,046	)	$	1,745,004
Securities held to maturity:
U.S. Government-sponsored enterprise obligations	$	69,949	$	1,244	$	—		$	71,193
Obligations of state and political subdivisions		88,909		4,730		(113	)		93,526
Mortgage backed securities		46,204		728		(153	)		46,779
Total securities held to maturity	$	205,062	$	6,702	$	(266	)	$	211,498

Securities with carrying values of $1,500,441,000 and $1,712,860,000 were pledged to secure public deposits and other borrowings at March 31, 2013 and December 31, 2012, respectively.

Management evaluates securities for other-than-temporary impairment at least quarterly, and more frequently when economic or market concerns warrant such evaluation. Consideration is given to 1) the length of time and the extent to which the estimated fair value has been less than amortized cost, 2) the financial condition and near-term prospects of the issuer, and 3) the intent and ability of the Company to retain its investment in the issuer for a period of time sufficient to allow for any anticipated recovery in estimated fair value above amortized cost. In analyzing an issuer’s financial condition, management considers whether the securities are issued by the federal government or its agencies and whether downgrades by bond rating agencies have occurred, as well as review of issuer financial statements and industry analysts’ reports.

Information pertaining to securities with gross unrealized losses at March 31, 2013 and December 31, 2012 aggregated by investment category and length of time that individual securities have been in a continuous loss position, follows:

	Less Than Twelve Months					Over Twelve Months					Total
(Dollars in thousands)	Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value
March 31, 2013
Securities available for sale:
U.S. Government-sponsored enterprise obligations	$	(298	)	$	165,763	$	—		$	—	$	(298	)	$	165,763
Obligations of state and political subdivisions		(1	)		336		(178	)		1,094		(179	)		1,430
Mortgage backed securities		(1,851	)		188,106		(2	)		2,679		(1,853	)		190,785
Total securities available for sale	$	(2,150	)	$	354,205	$	(180	)	$	3,773	$	(2,330	)	$	357,978
Securities held to maturity:
U.S. Government-sponsored enterprise obligations	$	—		$	—	$	—		$	—	$	—		$	—
Obligations of state and political subdivisions		(232	)		10,478		—			—		(232	)		10,478
Mortgage backed securities		(446	)		24,372		—			—		(446	)		24,372
Total securities held to maturity	$	(678	)	$	34,850	$	—		$	—	$	(678	)	$	34,850
December 31, 2012
Securities available for sale:
U.S. Government-sponsored enterprise obligations	$	(386	)	$	59,741	$	—		$	—	$	(386	)	$	59,741
Obligations of state and political subdivisions		—			—		(178	)		1,094		(178	)		1,094
Mortgage backed securities		(1,473	)		180,027		(9	)		3,919		(1,482	)		183,946
Total securities available for sale	$	(1,859	)	$	239,768	$	(187	)	$	5,013	$	(2,046	)	$	244,781
Securities held to maturity:
U.S. Government-sponsored enterprise obligations	$	—		$	—	$	—		$	—	$	—		$	—
Obligations of state and political subdivisions		(113	)		8,242		—			—		(113	)		8,242
Mortgage backed securities		(153	)		16,262		—			—		(153	)		16,262
Total securities held to maturity	$	(266	)	$	24,504	$	—		$	—	$	(266	)	$	24,504

The Company assessed the nature of the losses in its portfolio as of March 31, 2013 and December, 31, 2012 to determine if there are losses that are deemed other-than-temporary. In its analysis of these securities, management considered numerous factors to determine whether there were instances where the amortized cost basis of the debt securities would not be fully recoverable, including, but not limited to:

• the length of time and extent to which the estimated fair value of the securities was less than their amortized cost,

• whether adverse conditions were present in the operations, geographic area, or industry of the issuer,

• the payment structure of the security, including scheduled interest and principal payments, including the issuer’s failures to make scheduled payments, if any, and the likelihood of failure to make scheduled payments in the future,

• changes to the rating of the security by a rating agency, and

• subsequent recoveries or additional declines in fair value after the balance sheet date.

Management believes it has considered these factors, as well as all relevant information available, when determining the expected future cash flows of the securities in question. Except for the bond discussed below, in each instance, management has determined the cost basis of the securities would be fully recoverable. Management also has the intent and ability to hold debt securities until their maturity or anticipated recovery if the security is classified as available for sale. In addition, management does not believe the Company will be required to sell debt securities before the anticipated recovery of the amortized cost basis of the security.

At March 31, 2013, 54 debt securities had unrealized losses of 0.78% of the securities’ amortized cost basis and 0.15% of the Company’s total amortized cost basis. The unrealized losses for each of the 54 securities relate to market interest rate changes. Two of the 54 securities have been in a continuous loss position for over twelve months at March 31, 2013. These two securities had an aggregate amortized cost basis and unrealized loss of $3,953,000 and $180,000, respectively. One of the two securities was issued by the Federal National Mortgage Association (Fannie Mae). Fannie Mae securities are rated AA+ by S&P and Aaa by Moodys. One of the securities in a continuous unrealized loss position for over twelve months was issued by a political subdivision and discussed in further detail below.

At December 31, 2012, 49 debt securities had unrealized losses of 0.85% of the securities’ amortized cost basis and 0.12% of the Company’s total amortized cost basis. The unrealized losses for each of the 49 securities relate to market interest rate changes. Three of the 49 securities had been in a continuous loss position for over twelve months at December 31, 2012. These three securities had an aggregate amortized cost basis and unrealized loss of $5,200,000 and $187,000, respectively. Two of the three securities were issued by either the Federal National Mortgage Association (Fannie Mae), Federal Home Loan Mortgage Corporation (Freddie Mac), or the Government National Mortgage Association (Ginnie Mae). The Fannie Mae, Freddie Mac, and Ginnie Mae securities are rated AA+ by S&P and Aaa by Moodys. One of the securities in a continuous unrealized loss position for over twelve months was issued by a political subdivision and is discussed in further detail below.

Prior to 2012, management assessed the operating environment of a bond issuer as adverse and concluded that the Company had one unrated revenue municipal bond that warranted an other-than-temporary impairment charge. The specific impairment was related to the loss of the contracted revenue source required for bond repayment. The Company determined the impairment charge using observable market data for similar assets, including third party valuation of the security, as well as information from unobservable inputs, including its best estimate of the recoverability of the amortized cost of the security as outlined above. Changes to the unobservable inputs used by the Company would have resulted in a higher or lower impairment charge, but the unobservable inputs were not highly sensitive and would not result in a material difference in the impairment charge recorded for the year ended December 31, 2011. The Company recorded total impairment of 50% of the par value of the bond and provided a fair value of the bonds that was consistent with current market pricing. During the first three months of 2013, the Company continued to analyze the operating environment of the bond as it did in 2012 and 2011 and noted no further deterioration in the operating environment of the bond issuer.

During the three months ended March 31, 2013 and the year ended December 31, 2012, there was no activity related to credit losses on the other-than-temporarily impaired investment security where a portion of the unrealized loss was recognized in other comprehensive income.

As a result of the Company’s analysis, no other declines in the estimated fair value of the Company’s investment securities were deemed to be other-than-temporary at March 31, 2013 or December 31, 2012 except where noted above.

The amortized cost and estimated fair value by maturity of investment securities at March 31, 2013 are shown in the following table. Securities are classified according to their contractual maturities without consideration of principal amortization, potential prepayments or call options. Accordingly, actual maturities may differ from contractual maturities.

	Securities Available for Sale							Securities Held to Maturity
(Dollars in thousands)	Weighted Average Yield			Amortized Cost		Estimated Fair Value		Weighted Average Yield			Amortized Cost		Estimated Fair Value
Within one year or less		0.12	%	$	78,131	$	78,219		1.77	%	$	21,425	$	21,507
One through five years		1.34			231,579		234,222		2.00			56,171		57,395
After five through ten years		1.90			593,060		606,763		2.53			23,073		24,182
Over ten years		1.75			1,014,975		1,032,344		2.91			97,773		100,016
Totals		1.68	%	$	1,917,745	$	1,951,548		2.48	%	$	198,442	$	203,100

The following is a summary of realized gains and losses from the sale of securities classified as available for sale.

	Three Months Ended March 31,
(Dollars in thousands)	2013			2012
Realized gains	$	2,365		$	2,815
Realized losses		(37	)		(15	)
Net realized gains	$	2,328		$	2,800

In addition to the gains above, the Company realized certain immaterial gains on the calls of held to maturity securities.

Other Equity Securities

At March 31, 2013 and December 31, 2012, the Company included the following securities in “Other assets” on the Company’s consolidated balance sheets:

(Dollars in thousands)	March 31, 2013		December 31, 2012
Federal Home Loan Bank (FHLB) stock	$	10,404	$	16,860
Federal Reserve Bank (FRB) stock		28,155		28,155
First National Bankers Bankshares, Inc. (FNBB) stock		899		899
Other investments		406		302
Total equity securities	$	39,864	$	46,216

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Disposition Activity

3 Months Ended

Mar. 31, 2013

Text Block [Abstract]

Disposition Activity

NOTE 4 – DISPOSITION ACTIVITY

Branch Dispositions

During the fourth quarter of 2012, the Company announced plans to close four branches during 2013 as part of its ongoing business strategy, which includes a periodic review of its branch network to maximize shareholder return. The Company closed these four branches during the first quarter of 2013. As part of these branch closures, the Company incurred various disposal costs during the three months ended March 31, 2013 and expects to incur additional costs in the second quarter of 2013, including personnel termination costs, contract termination costs, and fixed asset disposals. The following table shows the costs the Company incurred that are included in its statement of comprehensive income for the three months ended March 31, 2013.

(Dollars in thousands, except per share data)	2013
Employee termination	$	55
Accelerated depreciation		375
Total	$	430

The Company estimates future exit costs, which would include additional employee termination costs, fixed asset disposals, and lease termination costs, will not be material.

During the second quarter of 2013, the Company also announced plans to close or consolidate nine additional branches.

Note 17 to these unaudited consolidated financial statements provides additional information on this announcement.

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Fair Value of Financial Instruments

3 Months Ended

Mar. 31, 2013

Fair Value Disclosures [Abstract]

Fair Value of Financial Instruments

NOTE 16 – FAIR VALUE OF FINANCIAL INSTRUMENTS

The estimated fair value of a financial instrument is the current amount that would be exchanged between willing parties, other than in a forced liquidation. Fair value is best determined based upon quoted market prices. However, in many instances, there are no quoted market prices for the Company’s various financial instruments. In cases where quoted market prices are not available, fair values are based on estimates using present value or other valuation techniques. Those techniques are significantly affected by the assumptions used, including the discount rate and estimates of future cash flows. Accordingly, the fair value estimates may not be realized in an immediate settlement of the instrument. ASC Topic 825 excludes certain financial instruments and all non-financial instruments from its disclosure requirements. Accordingly, the aggregate fair value amounts presented may not necessarily represent the underlying fair value of the Company.

The following methods and assumptions were used to estimate the fair value of each class of financial instruments for which it is practicable to estimate that value. Refer to Note 1 to these financial statements for the methods and assumptions used to measure the fair value of investment securities and derivative instruments.

Cash and cash equivalents

The carrying amounts of cash and cash equivalents approximate their fair value.

Loans

The fair values of non-covered mortgage loans receivable are estimated based on present values using entry-value rates (the interest rate that would be charged for a similar loan to a borrower with similar risk at the indicated balance sheet date) at March 31, 2013 and December 31, 2012, weighted for varying maturity dates. Other non-covered loans receivable are valued based on present values using entry-value interest rates at March 31, 2013 and December 31, 2012 applicable to each category of loans, which would be classified within Level 3 of the hierarchy. Fair values of mortgage loans held for sale are based on commitments on hand from investors or prevailing market prices. Covered loans are measured using projections of expected cash flows, exclusive of the shared-loss agreements with the FDIC. Fair value of the covered loans included in the table below reflects the current fair value of these loans, which is based on an updated estimate of the projected cash flow as of the dates indicated. The fair value associated with the loans include estimates related to expected prepayments and the amount and timing of undiscounted expected principal, interest and other cash flows, which also would be classified within Level 3 of the hierarchy.

Accrued Interest Receivable and Accrued Interest Payable: The carrying amount of accrued interest approximates fair value because of the short maturity of these financial instruments.

FDIC Loss Share Receivable: The fair value is determined using projected cash flows from loss sharing agreements based on expected reimbursements for losses at the applicable loss sharing percentages based on the terms of the loss share agreements. Cash flows are discounted to reflect the timing and receipt of the loss sharing reimbursements from the FDIC. The fair value of the Company’s FDIC loss share receivable would be categorized within Level 3 of the hierarchy.

Deposits

The fair values of NOW accounts, money market deposits and savings accounts are the amounts payable on demand at the reporting date. Certificates of deposit were valued using a discounted cash flow model based on the weighted-average rate at March 31, 2013 and December 31, 2012 for deposits of similar remaining maturities. The fair value of the Company’s deposits would therefore be categorized within Level 3 of the fair value hierarchy.

Short-term borrowings

The carrying amounts of short-term borrowings maturing within ninety days approximate their fair values.

Long-term debt

The fair values of long-term debt are estimated using discounted cash flow analyses based on the Company’s current incremental borrowing rates for similar types of borrowing arrangements. The fair value of the Company’s long-term debt would therefore be categorized within Level 3 of the fair value hierarchy.

Off-balance sheet items

The Company has outstanding commitments to extend credit and standby letters of credit. These off-balance sheet financial instruments are generally exercisable at the market rate prevailing at the date the underlying transaction will be completed. At March 31, 2013 and December 31, 2012, the fair value of guarantees under commercial and standby letters of credit was immaterial.

The estimated fair values and carrying amounts of the Company’s financial instruments are as follows as of the dates indicated:

	March 31, 2013				December 31, 2012
(Dollars in thousands)	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Financial Assets
Cash and cash equivalents	$	626,516	$	626,516	$	970,977	$	970,977
Investment securities		2,149,990		2,154,648		1,950,067		1,956,502
Loans and loans held for sale		8,783,012		8,902,016		8,766,055		8,800,563
FDIC loss share receivable		284,471		126,727		423,069		207,222
Derivative instruments		41,208		41,208		42,119		42,119
Accrued interest receivable		32,707		32,707		32,183		32,183
Financial Liabilities
Deposits	$	10,686,267	$	10,480,000	$	10,748,277	$	10,594,885
Short-term borrowings		294,156		294,156		303,045		303,045
Long-term debt		323,046		286,986		423,377		394,490
Derivative instruments		34,383		34,383		36,890		36,890
Accrued interest payable		6,421		6,421		6,615		6,615

The fair value estimates presented herein are based upon pertinent information available to management as of March 31, 2013 and December 31, 2012. Although management is not aware of any factors that would significantly affect the estimated fair value amounts, such amounts have not been comprehensively revalued for purposes of these financial statements since that date and, therefore, current estimates of fair value may differ significantly from the amounts presented herein.

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Other Comprehensive Income

3 Months Ended

Mar. 31, 2013

Equity [Abstract]

Other Comprehensive Income

NOTE 12 – OTHER COMPREHENSIVE INCOME

Other Comprehensive income

The following is a summary of the tax effects of each component of other comprehensive income for the three months ended March 31 for the periods indicated:

	March 31, 2013
(Dollars in thousands)	Before-Tax Amount			Tax (Expense) Benefit			Net-of-Tax Amount
Unrealized gain on securities:
Unrealized holding losses arising during the period	$	(1,994	)	$	698		$	(1,296	)
Other-than-temporary impairment realized in net income		—			—			—
Less: reclassification adjustment for gains included in net income		(2,328	)		815			(1,513	)
Net unrealized losses		(4,322	)		1,513			(2,809	)
Fair value of derivative instruments designated as cash flow hedges
Change in fair value of derivative instruments designated as cash flow hedges during the period	$	2,073		$	(725	)	$	1,348
Less: reclassification adjustment for losses included in net income		425			(149	)		276
Fair value of derivative instruments designated as cash flow hedges		2,498			(874	)		1,624
Total other comprehensive income (loss)	$	(1,824	)	$	639		$	(1,185	)

	March 31, 2012
(Dollars in thousands)	Before-Tax Amount			Tax (Expense) Benefit			Net-of-Tax Amount
Unrealized gain on securities:
Unrealized holding losses arising during the period	$	(1,056	)	$	370		$	(686	)
Other-than-temporary impairment realized in net income		—			—			—
Less: reclassification adjustment for gains included in net income		(2,800	)		980			(1,820	)
Net unrealized losses		(3,856	)		1,350			(2,506	)
Fair value of derivative instruments designated as cash flow hedges
Change in fair value of derivative instruments designated as cash flow hedges during the period	$	4,951		$	(1,733	)	$	3,218
Less: reclassification adjustment for losses (gains) included in net income		386			(135	)		251
Fair value of derivative instruments designated as cash flow hedges		5,337			(1,868	)		3,469
Total other comprehensive income	$	1,481		$	(518	)	$	963

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Share-Based Compensation - Compensation Expense Included in Salaries and Employee Benefits Expense Related to Restricted Stock Grants (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Share Based Compensation [Abstract]
Compensation expense related to restricted stock	$ 1,877	$ 1,710

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Transfers and Servicing of Financial Assets (Including Mortgage Banking Activity)

3 Months Ended

Mar. 31, 2013

Transfers And Servicing [Abstract]

Transfers and Servicing of Financial Assets (Including Mortgage Banking Activity)

NOTE 8 – TRANSFERS AND SERVICING OF FINANCIAL ASSETS (INCLUDING MORTGAGE BANKING ACTIVITY)

Mortgage Banking Activity

The Company through its subsidiary, IMC, originates mortgage loans for sale into the secondary market. The loans originated primarily consist of residential first mortgages that conform to standards established by the GSEs, but can also consist of junior lien loans secured by residential property. These sales are primarily to private companies that are unaffiliated with the GSEs on a servicing released basis. The following table details the mortgage banking activity as of and for the three months ended March 31:

(Dollars in thousands)
Mortgage loans held for sale	2013			2012
Balance, beginning of period	$	267,475		$	153,013
Balance acquired during the period		—			—
Originations		536,673			450,644
Sales		(616,111	)		(475,532	)
Balance, end of period	$	188,037		$	128,125

(Dollars in thousands)
Detail of mortgage income	2013		2012
Fair value changes of derivatives and mortgage loans held for sale, net	$	364	$	56
Gains on sales		18,429		13,563
Servicing and other income, net		138		99
Total mortgage income	$	18,931	$	13,718

For the three months ended March 31, 2013 and 2012, the Company did not actively hedge its mortgage banking activities.

Mortgage Servicing Rights

Mortgage servicing rights are amortized over the remaining servicing life of the loans, with consideration given to prepayment assumptions. Mortgage servicing rights had the following carrying values at March 31, 2013 and December 31, 2012:

	March 31, 2013							December 31, 2012
(Dollars in thousands)	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Mortgage servicing rights	$	1,426	$	(375	)	$	1,051	$	1,234	$	(304	)	$	930

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Loans Receivable - Summary of Changes in Accretable Yields of Acquired Loans (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Loans Receivable [Line Items]
Balance	$ 356,393	$ 470,811
Transfers from nonaccretable difference to accretable yield	18,522	4,380
Accretion	(51,780)	(61,972)
Changes in expected cash flows not affecting nonaccretable differences	73,473	20,755
Balance	396,608	433,974
Acquired Impaired Loans [Member]
Loans Receivable [Line Items]
Balance	76,623	83,834
Transfers from nonaccretable difference to accretable yield	2,042	943
Accretion	(6,499)	(6,275)
Changes in expected cash flows not affecting nonaccretable differences	8,973	(3,014)
Balance	81,139	75,488
Acquired Performing Loans [Member]
Loans Receivable [Line Items]
Balance	279,770	386,977
Transfers from nonaccretable difference to accretable yield	16,480	3,437
Accretion	(45,281)	(55,697)
Changes in expected cash flows not affecting nonaccretable differences	64,500	23,769
Balance	$ 315,469	$ 358,486

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Loans Receivable

3 Months Ended

Mar. 31, 2013

Receivables [Abstract]

Loans Receivable

NOTE 6 – LOANS RECEIVABLE

Loans receivable at March 31, 2013 and December 31, 2012 consist of the following:

(Dollars in thousands)	March 31, 2013		December 31, 2012
Residential mortgage loans:
Residential 1-4 family	$	473,503	$	471,183
Construction/ Owner Occupied		5,114		6,021
Total residential mortgage loans		478,617		477,204
Commercial loans:
Real estate		3,587,692		3,631,543
Business		2,621,644		2,537,718
Total commercial loans		6,209,336		6,169,261
Consumer and other loans:
Indirect automobile		342,117		327,985
Home equity		1,261,171		1,251,125
Other		303,734		273,005
Total consumer and other loans		1,907,022		1,852,115
Total loans receivable	$	8,594,975	$	8,498,580

In 2009, the Company acquired substantially all of the assets and liabilities of CapitalSouth Bank (“CSB”), and certain assets and assumed certain deposit and other liabilities of Orion Bank (“Orion”) and Century Bank (“Century”). In 2010, the Company acquired certain assets and assumed certain deposit and other liabilities of Sterling Bank. The loans and foreclosed real estate that were acquired in these transactions are covered by loss share agreements between the FDIC and IBERIABANK, which afford IBERIABANK significant loss protection. Under the loss share agreements, the FDIC will cover 80% of covered loan and foreclosed real estate losses up to certain thresholds for all four acquisitions, 80% of losses that exceed contractual thresholds for Sterling Bank, and 95% of losses that exceed contractual thresholds for CSB, Orion, and Century only.

Because of the loss protection provided by the FDIC, the risks of the CSB, Orion, Century, and Sterling loans and foreclosed real estate are significantly different from those assets not covered under the loss share agreement. Accordingly, the Company presents loans subject to the loss share agreements as “covered loans” in the information below and loans that are not subject to the loss share agreement as “non-covered loans.”

Deferred loan origination fees were $14,082,000 and $14,040,000 and deferred loan expenses were $5,626,000 and $5,270,000 at March 31, 2013 and December 31, 2012, respectively. In addition to loans issued in the normal course of business, the Company considers overdrafts on customer deposit accounts to be loans and reclassifies these overdrafts as loans in its consolidated balance sheets. At March 31, 2013 and December 31, 2012, overdrafts of $2,411,000 and $3,231,000, respectively, have been reclassified to loans receivable.

Loans with carrying values of $2,262,625,000 and $1,504,512,000 were pledged to secure public deposits and other borrowings at March 31, 2013 and December 31, 2012, respectively.

Non-covered Loans

The following is a summary of the major categories of non-covered loans outstanding as of March 31, 2013 and December 31, 2012:

(Dollars in thousands)	March 31, 2013		December 31, 2012
Non-covered Loans:
Residential mortgage loans:
Residential 1-4 family	$	296,175	$	284,019
Construction/ Owner Occupied		5,114		6,021
Total residential mortgage loans		301,289		290,040
Commercial loans:
Real estate		3,020,071		2,990,700
Business		2,534,612		2,450,667
Total commercial loans		5,554,683		5,441,367
Consumer and other loans:
Indirect automobile		342,117		327,985
Home equity		1,092,693		1,076,913
Other		300,020		269,519
Total consumer and other loans		1,734,830		1,674,417
Total non-covered loans receivable	$	7,590,802	$	7,405,824

The following tables provide an analysis of the aging of non-covered loans as of March 31, 2013 and December 31, 2012. Because of the difference in the accounting for acquired loans, the tables below further segregate the Company’s non-covered loans receivable between loans acquired from Florida Gulf in 2012, as well as those acquired in 2011, and loans originated by the Company. For purposes of the following tables, subprime mortgage loans are defined as the Company’s mortgage loans that have FICO scores that are less than 620 at the time of origination or were purchased outside of a business combination.

	Non-covered loans excluding acquired loans
(Dollars in thousands)
	Past Due(1)
March 31, 2013	30-59 days		60-89 days		Greater than 90 days		Total past due		Current		Total non- covered loans, net of unearned income		Recorded investment > 90 days and accruing
Residential
Prime	$	876	$	1,570	$	9,425	$	11,871	$	176,807	$	188,678	$	1,266
Subprime		—		7		—		7		88,799		88,806		—
Commercial
Real Estate - Construction		224		—		5,939		6,163		322,703		328,866		—
Real Estate - Other		1,141		266		22,514		23,921		2,247,219		2,271,140		519
Commercial Business		550		386		1,937		2,873		2,464,508		2,467,381		7
Consumer and Other
Indirect Automobile		1,068		186		982		2,236		335,953		338,189		—
Home Equity		882		705		6,966		8,553		1,016,663		1,025,216		158
Credit Card		158		93		403		654		50,169		50,823		—
Other		261		135		349		745		231,139		231,884		—
Total	$	5,160	$	3,348	$	48,515	$	57,023	$	6,933,960	$	6,990,983	$	1,950

	Non-covered loans excluding acquired loans
(Dollars in thousands)
	Past Due(1)
December 31, 2012	30-59 days		60-89 days		Greater than 90 days		Total past due		Current		Total non- covered loans, net of unearned income		Recorded investment > 90 days and accruing
Residential
Prime	$	662	$	1,156	$	9,168	$	10,986	$	185,843	$	196,829	$	801
Subprime		—		—		—		—		60,454		60,454		—
Commercial
Real Estate - Construction		60		—		5,479		5,539		288,137		293,676		—
Real Estate - Other		3,590		—		23,559		27,149		2,224,495		2,251,644		83
Commercial Business		1,430		13		3,687		5,130		2,362,304		2,367,434		329
Consumer and Other
Indirect Automobile		1,624		326		868		2,818		320,148		322,966		—
Home Equity		2,283		796		5,793		8,872		991,766		1,000,638		158
Credit Card		130		51		424		605		51,117		51,722		—
Other		566		105		310		981		201,161		202,142		—
Total	$	10,345	$	2,447	$	49,288	$	62,080	$	6,685,425	$	6,747,505	$	1,371

(1) Past due loans include loans on nonaccrual status as of the period indicated. Nonaccrual loans are presented separately in the “Nonaccrual Loans” section below.

(Dollars in thousands)	Non-covered acquired loans
	Past Due(1)
March 31, 2013	30-59 days		60-89 days		Greater than 90 days		Total past due		Current		Discount			Total non- covered loans, net of unearned income		Recorded investment > 90 days and accruing(1)
Residential
Prime	$	—	$	—	$	779	$	779	$	24,228	$	(1,202	)	$	23,805	$	779
Subprime		—		—		—		—		—		—			—		—
Commercial
Real Estate - Construction		570		447		3,920		4,937		27,091		(4,154	)		27,874		3,920
Real Estate - Other		5,301		2,145		37,389		44,835		405,796		(58,440	)		392,191		37,389
Commercial Business		845		112		2,684		3,641		70,777		(7,187	)		67,231		2,684
Consumer and Other
Indirect Automobile		67		22		123		212		3,716		—			3,928		123
Home Equity		916		269		5,510		6,695		68,305		(7,523	)		67,477		5,510
Credit Card		—		—		—		—		—		—			—		—
Other		194		524		520		1,238		17,631		(1,556	)		17,313		520
Total	$	7,893	$	3,519	$	50,925	$	62,337	$	617,544	$	(80,062	)	$	599,819	$	50,925

(Dollars in thousands)	Non-covered acquired loans
	Past Due(1)
December 31, 2012	30-59 days		60-89 days		Greater than 90 days		Total past due		Current		Discount			Total non- covered loans, net of unearned income		Recorded investment > 90 days and accruing(1)
Residential
Prime	$	—	$	—	$	779	$	779	$	30,663	$	1,315		$	32,757	$	779
Subprime		—		—		—		—		—		—			—		—
Commercial
Real Estate - Construction		369		—		4,067		4,436		29,098		(3,968	)		29,566		4,067
Real Estate - Other		5,971		1,572		38,987		46,530		426,339		(57,055	)		415,814		38,987
Commercial Business		1,410		524		3,953		5,887		89,490		(12,144	)		83,233		3,953
Consumer and Other
Indirect Automobile		171		4		146		321		4,698		—			5,019		146
Home Equity		2,379		382		4,354		7,115		73,658		(4,498	)		76,275		4,354
Credit Card		—		—		—		—		—		—			—		—
Other		202		17		495		714		21,746		(6,805	)		15,655		495
Total	$	10,502	$	2,499	$	52,781	$	65,782	$	675,692	$	(83,155	)	$	658,319	$	52,781

⁽¹⁾ Past due information includes loans acquired from OMNI, Cameron, and Florida Gulf at the gross loan balance, prior to application of discounts, at March 31, 2013 and December 31, 2012.

Nonaccrual Loans

The following table provides the recorded investment of non-covered loans on nonaccrual status at March 31, 2013 and December 31, 2012. Nonaccrual loans in the table exclude loans acquired.

(Dollars in thousands)
	March 31, 2013		December 31, 2012
Residential
Prime	$	8,159	$	8,367
Subprime		—		—
Commercial
Real Estate - Construction		5,939		5,479
Real Estate - Other		21,995		23,475
Business		1,930		3,358
Consumer and Other
Indirect Automobile		982		868
Home Equity		6,808		5,635
Credit Card		403		424
Other		349		310
Total	$	46,565	$	47,916

Covered Loans

The carrying amount of the acquired covered loans at March 31, 2013 and December 31, 2012 consisted of loans determined to be impaired at the time of acquisition, which are accounted for in accordance with ASC Topic 310-30, and loans that were considered to be performing at the acquisition date, accounted for by analogy to ASC Topic 310-30, as detailed in the following tables.

(Dollars in thousands)	March 31, 2013
Covered loans	Acquired Impaired Loans		Acquired Performing Loans		Total Covered Loans
Residential mortgage loans:
Residential 1-4 family	$	18,388	$	158,940	$	177,328
Total residential mortgage loans		18,388		158,940		177,328
Commercial loans:
Real estate		146,932		420,689		567,621
Business		2,832		84,200		87,032
Total commercial loans		149,764		504,889		654,653
Consumer and other loans:
Home equity		21,917		146,561		168,478
Other		768		2,946		3,714
Total consumer and other loans		22,685		149,507		172,192
Total covered loans receivable	$	190,837	$	813,336	$	1,004,173

(Dollars in thousands)	December 31, 2012
Covered loans	Acquired Impaired Loans		Acquired Performing Loans		Total Covered Loans
Residential mortgage loans:
Residential 1-4 family	$	20,232	$	166,932	$	187,164
Total residential mortgage loans		20,232		166,932		187,164
Commercial loans:
Real estate		167,742		473,101		640,843
Business		2,757		84,294		87,051
Total commercial loans		170,499		557,395		727,894
Consumer and other loans:
Home equity		22,094		152,117		174,211
Other		820		2,667		3,487
Total consumer and other loans		22,914		154,784		177,698
Total covered loans receivable	$	213,645	$	879,111	$	1,092,756

FDIC loss share receivables

The following is a summary of the year-to-date activity in the FDIC loss share receivable for the periods indicated.

(Dollars in thousands)	Three Months Ended March 31,
	2013			2012
Balance, beginning of period	$	423,069		$	591,844
Change due to (reversal of) credit loss provision recorded on FDIC covered loans		(45,414	)		684
Amortization		(27,702	)		(27,927	)
Submission of reimbursable losses to the FDIC		(30,491	)		(28,418	)
Impairment		(31,813	)		—
Changes due to a change in cash flow assumptions on OREO		(3,178	)		1,265
Balance, end of period	$	284,471		$	537,448

Impairment of FDIC loss share receivables

Based on improving economic trends, their impact on the amount and timing of expected future cash flows, and delays in the foreclosure process, the Company concluded that certain previously expected losses are probable of not being collected from the FDIC because such projected losses are no longer anticipated to occur or will occur beyond the reimbursable periods of the loss share agreements. The reimbursable loss period of the CapitalSouth loss share agreements ends in the third quarter of 2014 for non-single family residential loans (with the recovery period ending in the third quarter of 2017) and the third quarter of 2019 for single family residential loans. The reimbursable loss periods for the loans acquired from Century and Orion end during the fourth quarter of 2014 for non-single family residential loans (with the recovery period ending in the fourth quarter of 2017) and during the fourth quarter of 2019 for single family residential loans. For the loans acquired from Sterling, the reimbursable loss period of the loss share agreements ends during the third quarter of 2015 for non-single family residential loans (with the recovery period ending in the third quarter of 2018) and during the third quarter of 2020 for single family residential loans.

On April 10, 2013, the Audit Committee and the Board of Directors concluded that an impairment charge was required under generally accepted accounting principles applicable to the Company and should be recognized in the Company’s unaudited consolidated financial statements for the three-month period ended March 31, 2013. Therefore, the Company recognized a valuation allowance against the indemnification assets in the amount of $31,813,000 through a charge to net income.

Generally accepted accounting principles require that the tax effects of unusual or infrequent items, such as impairment of the indemnification assets, be recognized in the interim period in which they occur. Recognition of the tax effect of the indemnification asset impairment contributed to the $4,876,000 tax benefit presented in the unaudited consolidated statement of comprehensive income for the three months ended March 31, 2013 and resulted in an effective tax rate for that period that is not customary of the Company’s effective tax rate without recognition of this infrequent item.

The Company does not anticipate owing any consideration previously received under indemnification agreements to the FDIC under the “clawback” provisions of these agreements. Of the three agreements with the FDIC that contain clawback provisions, cumulative losses to date under two of these agreements have exceeded the calculated loss amounts which would result in clawback if not incurred. The sum of the historical and remaining projected losses under the remaining agreement is in excess of the clawback amount stated in that agreement. However, the future performance of the remaining covered assets (namely improvements in the forms of recoveries and/or reduced losses) for each of the three agreements beyond each agreement’s respective collection period could require the Company to be subject to the clawback provisions for that agreement. The clawback provisions generally stipulate that in the event of not meeting certain thresholds of loss, the Company is required to pay the FDIC a percentage as defined in the respective agreements.

ASC 310-30 loans

The Company acquired loans (both covered and non-covered) through previous acquisitions which are subject to ASC Topic 310-30.

The following is a summary of changes in the accretable yields of acquired loans during the three months ended March 31, 2013 and 2012.

(Dollars in thousands)
March 31, 2013	Acquired Impaired Loans			Acquired Performing Loans			Total Acquired Loan Portfolio
Balance, beginning of period	$	76,623		$	279,770		$	356,393
Transfers from nonaccretable difference to accretable yield		2,042			16,480			18,522
Accretion		(6,499	)		(45,281	)		(51,780	)
Changes in expected cash flows not affecting nonaccretable differences(1)		8,973			64,500			73,473
Balance, end of period	$	81,139		$	315,469		$	396,608

(Dollars in thousands)
March 31, 2012	Acquired Impaired Loans			Acquired Performing Loans			Total Acquired Loan Portfolio
Balance, beginning of period	$	83,834		$	386,977		$	470,811
Transfers from nonaccretable difference to accretable yield		943			3,437			4,380
Changes in expected cash flows not affecting nonaccretable difference(1)		(3,014	)		23,769			20,755
Accretion		(6,275	)		(55,697	)		(61,972	)
Balance, end of period	$	75,488		$	358,486		$	433,974

(1) Includes changes in cash flows expected to be collected due to the impact of changes in actual or expected timing of liquidation events, loan modifications, changes in interest rates and changes in prepayment assumptions.

Accretable yield during the first quarter of 2013 increased primarily as a result of changes in expected cash flows not impacting the nonaccretable difference. Accretable yield during the first quarter of 2013 and 2012 decreased primarily as a result of the accretion recognized.

Troubled Debt Restructurings

Information about the Company’s TDRs at March 31, 2013 and 2012 is presented in the following tables. The Company excludes as TDRs modifications of loans that are accounted for within a pool under Subtopic 310-30, which include the covered loans above, as well as the loans acquired in the OMNI and Cameron acquisitions completed during 2011 and those acquired from Florida Gulf in 2012. Accordingly, such modifications do not result in the removal of those loans from the pool, even if the modification of those loans would otherwise be considered a TDR. As a result, all covered loans and loans acquired from OMNI, Cameron, and Florida Gulf that would otherwise meet the criteria for classification as a troubled debt restructuring are excluded from the tables below.

	Total TDRs
(Dollars in thousands)	Accruing Loans
	Current		Past Due Greater than 30 Days		Nonaccrual TDRs		Total TDRs
March 31, 2013
Residential
Prime	$	—	$	—	$	—	$	—
Commercial
Real Estate		843		207		15,677		16,727
Business		1,188		—		281		1,469
Consumer and Other
Indirect Automobile		—		—		—		—
Home Equity		92		—		220		312
Credit Card		—		—		—		—
Other		—		—		—		—
Total	$	2,123	$	207	$	16,178	$	18,508
March 31, 2012
Residential
Prime	$	—	$	—	$	—	$	—
Commercial
Real Estate		650		—		24,477		25,127
Business		26		—		1,957		1,983
Consumer and Other
Indirect Automobile		—		—		—		—
Home Equity		—		—		229		229
Credit Card		—		—		—		—
Other		—		—		—		—
Total	$	676	$	—	$	26,663	$	27,339

Of the $18,508,000 in total TDRs, $1,545,000 occurred during the current three-month period through modification of the original loan terms. Total TDRs of $27,339,000 at March 31, 2012 included $4,061,000 of TDRs that occurred during the three-month period ended March 31, 2012. The following table provides information on how the TDRs were modified during the three months ended March 31, 2013 and 2012.

(Dollars in thousands)	2013		2012
Extended maturities	$	—	$	441
Interest rate adjustment		—		489
Maturity and interest rate adjustment		1,545		2,509
Movement to or extension of interest-rate only payments		—		622
Forbearance		—		—
Covenant modifications		—		—
Other concession(s)(1)		—		—
Total	$	1,545	$	4,061

(1) Other concessions include concessions or a combination of concessions that do not consist of maturity extensions, interest rate adjustments, forbearance, and covenant modifications.

Information about the Company’s non-covered TDRs occurring in these periods, as well as non-covered TDRs that subsequently defaulted during the previous twelve months, is presented in the following tables. The Company has defined a default as any loan with a loan payment that is currently past due greater than 30 days, or was past due greater than 30 days at any point during the previous twelve months, or since the date of modification, whichever is shorter.

	March 31, 2013						March 31, 2012
(In thousands, except number of loans)	Number of Loans		Pre- modification Outstanding Recorded Investment		Post- modification Outstanding Recorded Investment(1)		Number of Loans		Pre- modification Outstanding Recorded Investment		Post- modification Outstanding Recorded Investment(1)
TDRs occurring during the three-month period
Residential
Prime		—	$	—	$	—		—	$	—	$	—
Commercial
Real Estate		1		1,545		1,545		11		4,036		3,773
Business		—		—		—		1		27		—
Consumer and Other
Indirect Automobile		—		—		—		—		—		—
Home Equity		—		—		—		—		—		—
Credit Card		—		—		—		—		—		—
Other		—		—		—		1		—		—
Total		1	$	1,545	$	1,545		13	$	4,063	$	3,773

	March 31, 2013				March 31, 2012
Total TDRs that subsequently defaulted in the past 12 months	Number of Loans		Recorded Investment		Number of Loans		Recorded Investment
Residential
Prime		—	$	—		—	$	—
Commercial
Real Estate		48		15,147		40		24,053
Business		8		1,469		6		1,866
Consumer and Other
Indirect Automobile		—		—		—		—
Home Equity		1		51		—		—
Credit Card		—		—		—		—
Other		1		—		1		—
Total		58	$	16,667		47	$	25,919

(1) Recorded investment includes any allowance for credit losses recorded on the TDRs at the dates indicated.

XML

Allowance for Credit Losses and Credit Quality

3 Months Ended

Mar. 31, 2013

Receivables [Abstract]

Allowance for Credit Losses and Credit Quality

NOTE 7 – ALLOWANCE FOR CREDIT LOSSES AND CREDIT QUALITY

A summary of changes in the allowance for credit losses for the covered loan and non-covered loan portfolios for the three months ended March 31, 2013 and 2012 follows.

(Dollars in thousands)	March 31, 2013
	Non-covered loans
	Excluding Acquired Loans			Acquired Loans			Covered loans			Total
Balance, beginning of period	$	74,211		$	8,816		$	168,576		$	251,603
(Reversal of) Provision for credit losses before benefit attributable to FDIC loss share agreements		(4,002	)		596			(45,385	)		(48,791	)
Adjustment attributable to FDIC loss share agreements		—			—			45,414			45,414
Net (reversal of) provision for credit losses		(4,002	)		596			29			(3,377	)
Decrease in FDIC loss share receivable		—			—			(45,414	)		(45,414	)
Transfer of balance to OREO		—			(559	)		(11,318	)		(11,877	)
Loans charged-off		(2,062	)		—			(41	)		(2,103	)
Recoveries		893			—			—			893
Balance, end of period	$	69,040		$	8,853		$	111,832		$	189,725

(Dollars in thousands)	March 31, 2012
	Non-covered loans
	Excluding Acquired Loans			Acquired Loans			Covered loans			Total
Balance, beginning of period	$	74,861		$	—		$	118,900		$	193,761
Provision for credit losses before benefit attributable to FDIC loss share agreements		1,004			1,106			1,431			3,541
Adjustment attributable to FDIC loss share agreements		—			—			(684	)		(684	)
Net provision for credit losses		1,004			1,106			747			2,857
Increase in FDIC loss share receivable		—			—			684			684
Transfer of balance to OREO		—			(6	)		(5,357	)		(5,363	)
Loans charged-off		(2,111	)		(160	)		(13,266	)		(15,537	)
Recoveries		772			1			17			790
Balance, end of period	$	74,526		$	941		$	101,725		$	177,192

A summary of changes in the allowance for credit losses for non-covered loans, by loan portfolio type, for the three months ended March 31, 2013 and 2012 is as follows:

(Dollars in thousands)	Commercial Real Estate			Commercial Business			Consumer			Mortgage			Unallocated		Total
March 31, 2013
Allowance for credit losses
Balance, beginning of period	$	38,264		$	28,721		$	13,917		$	2,125		$	—	$	83,027
(Reversal of) Provision for loan losses		(1,804	)		(646	)		(1,374	)		418			—		(3,406	)
Transfer of balance to OREO		(285	)		—			(7	)		(267	)		—		(559	)
Loans charged off		(413	)		(225	)		(1,183	)		(241	)		—		(2,062	)
Recoveries		56			188			618			31			—		893
Balance, end of period	$	35,818		$	28,038		$	11,971		$	2,066		$	—	$	77,893
Allowance on loans individually evaluated for impairment	$	35		$	116		$	41		$	137		$	—	$	329
Allowance on loans collectively evaluated for impairment		35,783			27,922			11,930			1,929			—		77,564
Loans, net of unearned income
Balance, end of period	$	3,020,071		$	2,534,612		$	1,734,830		$	301,289		$	—	$	7,590,802
Balance, end of period: Loans individually evaluated for impairment		27,271			2,958			312			1,058			—		31,599
Balance, end of period: Loans collectively evaluated for impairment		2,992,800			2,531,654			1,734,518			300,231			—		7,559,203
Balance, end of period: Loans acquired with deteriorated credit quality		50,503			3,339			4,276			383			—		58,501

(Dollars in thousands)	Commercial Real Estate			Commercial Business			Consumer			Mortgage			Unallocated		Total
March 31, 2012
Allowance for credit losses
Balance, beginning of period	$	35,604		$	25,705		$	12,655		$	897		$	—	$	74,861
(Reversal of) Provision for credit losses		(860	)		2,065			1,024			(119	)		—		2,110
Transfer of balance to OREO		(6	)		—			—			—			—		(6	)
Loans charged off		(803	)		(31	)		(1,274	)		(163	)		—		(2,271	)
Recoveries		128			31			604			10			—		773
Balance, end of period	$	34,063		$	27,770		$	13,009		$	625		$	—	$	75,467
Allowance on loans individually evaluated for impairment	$	1,590		$	202		$	—		$	168		$	—	$	1,960
Allowance on loans collectively evaluated for impairment		32,473			27,568			13,009			457			—		73,507
Loans, net of unearned income
Balance, end of period	$	2,580,727		$	2,020,510		$	1,353,404		$	263,003		$	—	$	6,217,644
Balance, end of period: Loans individually evaluated for impairment		33,952			6,486			228			1,186			—		41,852
Balance, end of period: Loans collectively evaluated for impairment		2,546,775			2,014,024			1,353,176			261,817			—		6,175,792
Balance, end of period: Loans acquired with deteriorated credit quality		15,292			24,193			5,640			—			—		45,125

A summary of changes in the allowance for credit losses for covered loans, by loan portfolio type, for the three months ended March 31, 2013 and 2012 is as follows:

(Dollars in thousands)	Commercial Real Estate			Commercial Business			Consumer			Mortgage			Unallocated		Total
March 31, 2013
Allowance for credit losses
Balance, beginning of period	$	100,871		$	11,375		$	33,764		$	22,566		$	—	$	168,576
(Reversal of) Provision for credit losses		29			—			—			—			—		29
Decrease in FDIC loss share receivable		(23,001	)		(1,601	)		(15,905	)		(4,907	)		—		(45,414	)
Transfer of balance to OREO		(9,729	)		—			—			(1,589	)		—		(11,318	)
Loans charged off		(41	)		—			—			—			—		(41	)
Recoveries		—			—			—			—			—		—
Balance, end of period	$	68,129		$	9,774		$	17,859		$	16,070		$	—	$	111,832
Allowance on loans individually evaluated for impairment	$	—		$	—		$	—		$	—		$	—	$	—
Allowance on loans collectively evaluated for impairment		68,129			9,774			17,859			16,070			—		111,832
Loans, net of unearned income
Balance, end of period	$	567,621		$	87,032		$	172,192		$	177,328		$	—	$	1,004,173
Balance, end of period: Loans individually evaluated for impairment		—			—			—			—			—		—
Balance, end of period: Loans collectively evaluated for impairment		567,621			87,032			172,192			177,328			—		1,004,173
Balance, end of period: Loans acquired with deteriorated credit quality		146,932			2,832			22,685			18,388			—		190,837

(Dollars in thousands)	Commercial Real Estate			Commercial Business			Consumer			Mortgage			Unallocated		Total
March 31, 2012
Allowance for credit losses
Balance, beginning of period	$	69,175		$	9,788		$	18,753		$	21,184		$	—	$	118,900
(Reversal of) Provision for credit losses		1,386			794			578			(2,011	)		—		747
Increase (decrease) in FDIC loss share receivable		1,268			728			529			(1,841	)		—		684
Transfer of balance to OREO		(3,179	)		(4	)		(797	)		(1,377	)		—		(5,357	)
Loans charged off		(13,126	)		—			(9	)		(131	)		—		(13,266	)
Recoveries		14			—			3			—			—		17
Balance, end of period	$	55,538		$	11,306		$	19,057		$	15,824		$	—	$	101,725
Allowance on loans individually evaluated for impairment	$	—		$	—		$	—		$	—		$	—	$	—
Allowance on loans collectively evaluated for impairment		55,538			11,306			19,057			15,824			—		101,725
Loans, net of unearned income
Balance, end of period	$	725,470		$	104,102		$	194,539		$	236,551		$	—	$	1,260,662
Balance, end of period: Loans individually evaluated for impairment		—			—			—			—			—		—
Balance, end of period: Loans collectively evaluated for impairment		725,470			104,102			194,539			236,551			—		1,260,662
Balance, end of period: Loans acquired with deteriorated credit quality		184,830			4,005			27,596			30,694			—		247,125

Credit Quality

The Company’s investment in non-covered loans by credit quality indicator as of March 31, 2013 and December 31, 2012 is presented in the following tables. Because of the difference in the accounting for acquired loans, the tables below further segregate the Company’s non-covered loans receivable between loans acquired and loans that were not acquired. Loan discounts in the table below represent the adjustment of non-covered acquired loans to fair value at the time of acquisition, as adjusted for income accretion and changes in cash flow estimates in subsequent periods. Asset risk classifications for commercial loans reflect the classification as of March 31, 2013 and December 31, 2012.

(Dollars in thousands)	Non-covered loans excluding acquired loans
	Commercial Real Estate Construction				Commercial Real Estate- Other				Commercial Business
Credit quality indicator by asset risk classification	March 31, 2013		December 31, 2012		March 31, 2013		December 31, 2012		March 31, 2013		December 31, 2012
Pass	$	307,334	$	269,842	$	2,197,301	$	2,162,989	$	2,405,197	$	2,295,788
Special Mention		14,016		16,767		33,328		40,547		19,896		21,640
Substandard		7,516		7,067		40,113		47,710		42,240		49,958
Doubtful		—		—		398		398		48		48
Total		328,866		293,676		2,271,140		2,251,644		2,467,381		2,367,434
Discount		—		—		—		—		—		—
Non-covered commercial loans, net	$	328,866	$	293,676	$	2,271,140	$	2,251,644	$	2,467,381	$	2,367,434

	Mortgage - Prime				Mortgage - Subprime
Credit risk by payment status	March 31, 2013		December 31, 2012		March 31, 2013		December 31, 2012
Current	$	176,807	$	185,843	$	88,799	$	60,454
Past due greater than 30 days		11,871		10,986		7		—
Total		188,678		196,829		88,806		60,454
Discount		—		—		—		—
Non-covered mortgage loans, net	$	188,678	$	196,829	$	88,806	$	60,454

	Indirect Automobile				Credit Card
Credit risk by payment status	March 31, 2013		December 31, 2012		March 31, 2013		December 31, 2012
Current	$	335,953	$	320,148	$	50,169	$	51,117
Past due greater than 30 days		2,236		2,818		654		605
Total	$	338,189	$	322,966	$	50,823	$	51,722

	Home Equity				Consumer - Other
Credit risk by payment status	March 31, 2013		December 31, 2012		March 31, 2013		December 31, 2012
Current	$	1,016,663	$	991,766	$	231,139	$	201,161
Past due greater than 30 days		8,553		8,872		745		981
Total		1,025,216		1,000,638		231,884		202,142
Discount		—		—		—		—
Non-covered consumer loans, net	$	1,025,216	$	1,000,638	$	231,884	$	202,142

(Dollars in thousands)	Non-covered acquired loans
	Commercial Real Estate Construction						Commercial Real Estate- Other						Commercial Business
Credit quality indicator by asset risk classification	March 31, 2013			December 31, 2012			March 31, 2013			December 31, 2012			March 31, 2013			December 31, 2012
Pass	$	24,619		$	25,896		$	341,260		$	359,046		$	65,815		$	86,201
Special Mention		2,017			2,410			28,730			28,185			3,758			2,159
Substandard		5,392			5,228			76,232			85,420			3,914			4,808
Doubtful		—			—			4,409			218			931			2,209
Total		32,028			33,534			450,631			472,869			74,418			95,377
Discount		(4,154	)		(3,968	)		(58,440	)		(57,055	)		(7,187	)		(12,144	)
Non-covered commercial loans, net	$	27,874		$	29,566		$	392,191		$	415,814		$	67,231		$	83,233

	Mortgage - Prime					Mortgage - Subprime
Credit risk by payment status	March 31, 2013			December 31, 2012		March 31, 2013		December 31, 2012
Current	$	24,228		$	30,663	$	—	$	—
Past due greater than 30 days		779			779		—		—
Total		25,007			31,442		—		—
Premium (discount)		(1,202	)		1,315		—		—
Non-covered mortgage loans, net	$	23,805		$	32,757	$	—	$	—

	Indirect Automobile				Credit Card
Credit risk by payment status	March 31, 2013		December 31, 2012		March 31, 2013		December 31, 2012
Current	$	3,716	$	4,698	$	—	$	—
Past due greater than 30 days		212		321		—		—
Total		3 ,928		5,019
Premium (discount)		—		—		—		—
Non-covered consumer loans, net	$	3,928	$	5,019	$	—	$	—

	Home Equity						Consumer - Other
Credit risk by payment status	March 31, 2013			December 31, 2012			March 31, 2013			December 31, 2012
Current	$	68,305		$	73,658		$	17,631		$	21,746
Past due greater than 30 days		6,695			7,115			1,238			714
Total		75,000			80,773			18,869			22,460
Discount		(7,523	)		(4,498	)		(1,556	)		(6,805	)
Non-covered consumer loans, net	$	67,477		$	76,275		$	17,313		$	15,655

Credit quality information in the table above includes loans acquired at the gross loan balance, prior to the application of discounts, at March 31, 2013 and December 31, 2012.

The Company’s investment in covered loans by credit quality indicator as of March 31, 2013 and December 31, 2012 is presented in the following table. Loan discounts in the table below represent the adjustment of covered loans to fair value at the time of acquisition, as adjusted for income accretion and changes in cash flow estimates in subsequent periods.

(Dollars in thousands)	Covered loans
March 31, 2013	Commercial
Credit quality indicator by asset risk classification	Real Estate - Construction		Real Estate  - Other		Business		Total
Pass	$	48,695	$	185,652	$	34,212	$	268,559
Special Mention		9,568		62,980		3,039		75,587
Substandard		79,496		241,459		42,103		363,058
Doubtful		607		8,241		443		9,291
Total	$	138,366	$	498,332	$	79,797	$	716,495
Discount								(61,842	)
Covered commercial loans, net							$	654,653

	Mortgage
Credit risk by payment status	Prime		Subprime		Total
Current	$	177,811	$	—	$	177,811
Past due greater than 30 days		44,777		—		44,777
Total	$	222,588	$	—	$	222,588
Discount						(45,260	)
Covered mortgage loans, net					$	177,328

	Consumer and Other
Credit risk by payment status	Indirect Automobile		Credit Card		Home Equity		Other		Total
Current	$	—	$	784	$	166,129	$	1,084	$	167,997
Past due greater than 30 days		—		35		54,924		1,637		56,596
Total	$	—	$	819	$	221,053	$	2,721	$	224,593
Discount										(52,401	)
Covered consumer loans, net									$	172,192

(Dollars in thousands)	Covered loans
December 31, 2012	Commercial
Credit quality indicator by asset risk classification	Real Estate - Construction		Real Estate  - Other		Business		Total
Pass	$	46,201	$	201,261	$	38,552	$	286,014
Special Mention		9,888		65,498		8,600		83,986
Substandard		97,315		279,171		50,018		426,504
Doubtful		607		8,530		451		9,588
Total	$	154,011	$	554,460	$	97,621	$	806,092
Discount								(78,198	)
Covered commercial loans, net							$	727,894

	Mortgage
Credit risk by payment status	Prime		Subprime		Total
Current	$	183,795	$	—	$	183,795
Past Due greater than 30 days		52,379		—		52,379
Total	$	236,174	$	—	$	236,174
Discount						(49,010	)
Covered mortgage loans, net					$	187,164

	Consumer and Other
Credit risk by payment status	Indirect Automobile		Credit Card		Home Equity		Other		Total
Current	$	—	$	841	$	168,728	$	1,155	$	170,724
Past Due greater than 30 days		—		65		65,997		1,523		67,585
Total	$	—	$	906	$	234,725	$	2,678	$	238,309
Discount										(60,611	)
Covered consumer loans, net									$	177,698

Impaired Loans

Information on the Company’s investment in impaired loans is presented in the following tables as of and for the periods indicated.

(Dollars in thousands)	At March 31, 2013							At December 31, 2012
	Recorded Investment		Unpaid Principal Balance		Related Allowance			Recorded Investment		Unpaid Principal Balance		Related Allowance
With no related allowance recorded
Commercial Loans
Real Estate	$	29,043	$	29,043	$	—		$	26,151	$	26,151	$	—
Business		2,926		2,926		—			1,824		1,824		—
With an allowance recorded
Mortgage Loans
Residential - Prime	$	9,037	$	9,216	$	(179	)	$	9,861	$	10,070	$	(209	)
Residential - Subprime		—		—		—			—		—		—
Commercial Loans
Real Estate		145		156		(11	)		3,464		3,663		(199	)
Business		309		449		(140	)		1,334		1,810		(476	)
Consumer Loans
Indirect automobile		978		982		(4	)		865		868		(3	)
Credit card		394		403		(9	)		413		424		(11	)
Home equity		7,343		7,434		(91	)		5,860		5,951		(91	)
Other		346		349		(3	)		307		310		(3	)
Total
Mortgage Loans	$	9,037	$	9,216	$	(179	)	$	9,861	$	10,070		(209	)
Commercial Loans		32,423		32,574		(151	)		32,773		33,448		(675	)
Consumer Loans		9,061		9,168		(107	)		7,445		7,553		(108	)

(Dollars in thousands)	For the Three Months Ended March 31, 2013				For the Three Months Ended March 31, 2012
	Average Recorded Investment		Interest Income Recognized		Average Recorded Investment		Interest Income Recognized
With no related allowance recorded
Commercial Loans
Real Estate	$	30,510	$	28	$	32,007	$	—
Business		3,030		24		6,530		—
With an allowance recorded
Mortgage Loans
Residential - Prime		9,213		—		5,389		—
Residential - Subprime		—		—		—		—
Commercial Loans
Real Estate		157		2		4,657		32
Business		451		5		246		1
Consumer Loans
Indirect automobile		1,267		—		862		—
Credit card		405		—		423		—
Home equity		6,910		—		6,575		—
Other		497		—		748		—
Total
Mortgage Loans		9,213		—		5,389		—
Commercial Loans		34,148		59		43,440		33
Consumer Loans		9,079		—		8,608		—

As of March 31, 2013 and December 31, 2012, the Company was not committed to lend additional funds to any customer whose loan was classified as impaired or as a troubled debt restructuring.

XML

Goodwill and Other Acquired Intangible Assets

3 Months Ended

Mar. 31, 2013

Goodwill And Intangible Assets Disclosure [Abstract]

Goodwill and Other Acquired Intangible Assets

NOTE 9 – GOODWILL AND OTHER ACQUIRED INTANGIBLE ASSETS

Goodwill

Changes to the carrying amount of goodwill for the year ended December 31, 2012 and the three months ended March 31, 2013 are provided in the following table.

(Dollars in thousands)	Amount
Balance, December 31, 2011	$	369,811
Goodwill acquired during the period		32,420
Goodwill adjustment to correct an immaterial error		(359	)
Balance, December 31, 2012		401,872
Goodwill acquired during the period		—
Balance, March 31, 2013	$	401,872

The goodwill acquired during the year ended December 31, 2012 was a result of the Florida Gulf acquisition discussed further in Note 4.

The goodwill adjustment in 2012 is a result of the Company’s revised goodwill recorded on its OMNI and Cameron acquisitions. The Company has recorded the adjustment to account for the impact of an immaterial error in accounting for its OMNI and Cameron acquisitions that resulted in a decrease in goodwill of $359,000. The Company revised its valuation of acquired deferred tax assets and property during the first quarter of 2012 as a result of information that existed at the acquisition date but was not available during the prior period. The error was identified in 2012 through the operation of the Company’s internal controls over financial reporting as it related to the Company’s acquisition accounting.

The Company performed the required annual impairment test of goodwill as of October 1, 2012. The Company’s annual impairment test did not indicate impairment at any of the Company’s reporting units as of the testing date, and subsequent to that date, management is not aware of any events or changes in circumstances since the impairment test that would indicate that goodwill might be impaired.

Prior to 2011, the Company recognized goodwill impairment of $9,681,000 at the Company’s LTC subsidiary based on a decrease in operating revenue and income, which resulted in the conclusion that the fair value of LTC may have been reduced below its carrying amount.

Title plant

The Company had title plant assets totaling $6,722,000 at March 31, 2013 and December 31, 2012, respectively. No events or changes in circumstances occurred during 2013 or 2012 to suggest the carrying value of the title plant was not recoverable.

Intangible assets subject to amortization

Definite-lived intangible assets had the following carrying values at March 31, 2013 and December 31, 2012:

	March 31, 2013							December 31, 2012
(Dollars in thousands)	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Core deposit intangibles	$	45,406	$	(27,409	)	$	17,997	$	45,406	$	(26,284	)	$	19,122
Customer relationship intangible asset		1,348		(468	)		880		1,348		(410	)		938
Total	$	46,754	$	(27,877	)	$	18,877	$	46,754	$	(26,694	)	$	20,060

XML

Allowance for Credit Losses and Credit Quality - Schedule of Allowance for Loan Losses for Covered Loan and Non-Covered Loan Portfolios (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	$ 251,603	$ 193,761
(Reversal of) Provision for credit losses before benefit attributable to FDIC loss share agreements	(48,791)	3,541
Adjustment attributable to FDIC loss share agreements	45,414	(684)
Net (reversal of) provision for credit losses	(3,377)	2,857
Increase (Decrease) in FDIC loss share receivable	(45,414)	684
Transfer of balance to OREO	(11,877)	(5,363)
Loans charged-off	(2,103)	(15,537)
Recoveries	893	790
Balance, end of period	189,725	177,192
Non-Covered Loans Excluding Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	74,211	74,861
(Reversal of) Provision for credit losses before benefit attributable to FDIC loss share agreements	(4,002)	1,004
Adjustment attributable to FDIC loss share agreements
Net (reversal of) provision for credit losses	(4,002)	1,004
Increase (Decrease) in FDIC loss share receivable
Transfer of balance to OREO
Loans charged-off	(2,062)	(2,111)
Recoveries	893	772
Balance, end of period	69,040	74,526
Non-Covered Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	8,816
(Reversal of) Provision for credit losses before benefit attributable to FDIC loss share agreements	596	1,106
Adjustment attributable to FDIC loss share agreements
Net (reversal of) provision for credit losses	596	1,106
Increase (Decrease) in FDIC loss share receivable
Transfer of balance to OREO	(559)	(6)
Loans charged-off		(160)
Recoveries		1
Balance, end of period	8,853	941
Covered Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	168,576	118,900
(Reversal of) Provision for credit losses before benefit attributable to FDIC loss share agreements	(45,385)	1,431
Adjustment attributable to FDIC loss share agreements	45,414	(684)
Net (reversal of) provision for credit losses	29	747
Increase (Decrease) in FDIC loss share receivable	(45,414)	684
Transfer of balance to OREO	(11,318)	(5,357)
Loans charged-off	(41)	(13,266)
Recoveries		17
Balance, end of period	$ 111,832	$ 101,725

XML

Share-Based Compensation - Unvested Restricted Stock Award Activity (Detail)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Balance, beginning of year	538,202	512,112
Granted	148,518	134,988
Forfeited	(11,673)	(3,055)
Earned and issued	(89,366)	(74,928)
Balance, end of year	585,681	569,117

XML

Allowance for Credit Losses and Credit Quality - Investment in Covered Loans and Non-Covered Loans by Credit Quality Indicator (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Financing Receivable, Allowance for Credit Losses [Line Items]
Non-covered commercial loans, net	$ 7,590,802	$ 7,405,824
Total loans receivable	1,004,173	1,092,756
Non-Covered Loans Excluding Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit risk by payment status, Current	6,933,960	6,685,425
Credit risk by payment status, Past due greater than 30 days	57,023	62,080
Discount	6,990,983	6,747,505
Covered Loans [Member] | Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	268,559
Covered Loans [Member] | Special Mention [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	75,587
Covered Loans [Member] | Substandard [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	363,058
Covered Loans [Member] | Doubtful [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	9,291
Covered Loans [Member] | Internally Assigned Grade [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	716,495
Discount	(61,842)
Total loans receivable	654,653
Covered Loans [Member] | Mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit risk by payment status, Current	177,811	183,795
Credit risk by payment status, Past due greater than 30 days	44,777	52,379
Credit quality indicator by asset risk classification	222,588	236,174
Discount	(45,260)	(49,010)
Covered Loans [Member] | Mortgage [Member] | Internally Assigned Grade [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Non-covered commercial loans, net		187,164
Total loans receivable	177,328
Covered Loans [Member] | Consumer Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit risk by payment status, Current	167,997	170,724
Credit risk by payment status, Past due greater than 30 days	56,596	67,585
Credit quality indicator by asset risk classification	224,593	238,309
Discount	(52,401)	(60,611)
Covered Loans [Member] | Consumer Loans [Member] | Internally Assigned Grade [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans receivable	172,192	177,698
Covered Loans [Member] | Commercial Loans [Member] | Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification		286,014
Covered Loans [Member] | Commercial Loans [Member] | Special Mention [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification		83,986
Covered Loans [Member] | Commercial Loans [Member] | Substandard [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification		426,504
Covered Loans [Member] | Commercial Loans [Member] | Doubtful [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification		9,588
Covered Loans [Member] | Commercial Loans [Member] | Internally Assigned Grade [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification		806,092
Discount		(78,198)
Total loans receivable		727,894
Commercial Real Estate Construction [Member] | Non-Covered Acquired Loans [Member] | Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	24,619	25,896
Commercial Real Estate Construction [Member] | Non-Covered Acquired Loans [Member] | Special Mention [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	2,017	2,410
Commercial Real Estate Construction [Member] | Non-Covered Acquired Loans [Member] | Substandard [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	5,392	5,228
Commercial Real Estate Construction [Member] | Non-Covered Acquired Loans [Member] | Doubtful [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification
Commercial Real Estate Construction [Member] | Non-Covered Acquired Loans [Member] | Internally Assigned Grade [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans receivable	32,028	33,534
Non-covered commercial loans, net	27,874	29,566
Discount	(4,154)	(3,968)
Commercial Real Estate Construction [Member] | Non-Covered Loans Excluding Acquired Loans [Member] | Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	307,334	269,842
Commercial Real Estate Construction [Member] | Non-Covered Loans Excluding Acquired Loans [Member] | Special Mention [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	14,016	16,767
Commercial Real Estate Construction [Member] | Non-Covered Loans Excluding Acquired Loans [Member] | Substandard [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	7,516	7,067
Commercial Real Estate Construction [Member] | Non-Covered Loans Excluding Acquired Loans [Member] | Doubtful [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification
Commercial Real Estate Construction [Member] | Non-Covered Loans Excluding Acquired Loans [Member] | Internally Assigned Grade [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Non-covered commercial loans, net	328,866	293,676
Discount
Non-covered commercial loans, net	328,866	293,676
Commercial Real Estate Construction [Member] | Covered Loans [Member] | Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	48,695
Commercial Real Estate Construction [Member] | Covered Loans [Member] | Special Mention [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	9,568
Commercial Real Estate Construction [Member] | Covered Loans [Member] | Substandard [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	79,496
Commercial Real Estate Construction [Member] | Covered Loans [Member] | Doubtful [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	607
Commercial Real Estate Construction [Member] | Covered Loans [Member] | Internally Assigned Grade [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	138,366
Commercial Real Estate Construction [Member] | Covered Loans [Member] | Commercial Loans [Member] | Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification		46,201
Commercial Real Estate Construction [Member] | Covered Loans [Member] | Commercial Loans [Member] | Special Mention [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification		9,888
Commercial Real Estate Construction [Member] | Covered Loans [Member] | Commercial Loans [Member] | Substandard [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification		97,315
Commercial Real Estate Construction [Member] | Covered Loans [Member] | Commercial Loans [Member] | Doubtful [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification		607
Commercial Real Estate Construction [Member] | Covered Loans [Member] | Commercial Loans [Member] | Internally Assigned Grade [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification		154,011
Commercial Real Estate - Other [Member] | Non-Covered Acquired Loans [Member] | Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	341,260	359,046
Commercial Real Estate - Other [Member] | Non-Covered Acquired Loans [Member] | Special Mention [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	28,730	28,185
Commercial Real Estate - Other [Member] | Non-Covered Acquired Loans [Member] | Substandard [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	76,232	85,420
Commercial Real Estate - Other [Member] | Non-Covered Acquired Loans [Member] | Doubtful [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	4,409	218
Commercial Real Estate - Other [Member] | Non-Covered Acquired Loans [Member] | Internally Assigned Grade [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans receivable	450,631	472,869
Non-covered commercial loans, net	392,191	415,814
Discount	(58,440)	(57,055)
Commercial Real Estate - Other [Member] | Non-Covered Loans Excluding Acquired Loans [Member] | Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	2,197,301	2,162,989
Commercial Real Estate - Other [Member] | Non-Covered Loans Excluding Acquired Loans [Member] | Special Mention [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	33,328	40,547
Commercial Real Estate - Other [Member] | Non-Covered Loans Excluding Acquired Loans [Member] | Substandard [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	40,113	47,710
Commercial Real Estate - Other [Member] | Non-Covered Loans Excluding Acquired Loans [Member] | Doubtful [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	398	398
Commercial Real Estate - Other [Member] | Non-Covered Loans Excluding Acquired Loans [Member] | Internally Assigned Grade [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Non-covered commercial loans, net	2,271,140	2,251,644
Discount
Non-covered commercial loans, net	2,271,140	2,251,644
Commercial Real Estate - Other [Member] | Covered Loans [Member] | Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	185,652
Commercial Real Estate - Other [Member] | Covered Loans [Member] | Special Mention [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	62,980
Commercial Real Estate - Other [Member] | Covered Loans [Member] | Substandard [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	241,459
Commercial Real Estate - Other [Member] | Covered Loans [Member] | Doubtful [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	8,241
Commercial Real Estate - Other [Member] | Covered Loans [Member] | Internally Assigned Grade [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	498,332
Commercial Real Estate - Other [Member] | Covered Loans [Member] | Commercial Loans [Member] | Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification		201,261
Commercial Real Estate - Other [Member] | Covered Loans [Member] | Commercial Loans [Member] | Special Mention [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification		65,498
Commercial Real Estate - Other [Member] | Covered Loans [Member] | Commercial Loans [Member] | Substandard [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification		279,171
Commercial Real Estate - Other [Member] | Covered Loans [Member] | Commercial Loans [Member] | Doubtful [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification		8,530
Commercial Real Estate - Other [Member] | Covered Loans [Member] | Commercial Loans [Member] | Internally Assigned Grade [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification		554,460
Commercial Business [Member] | Non-Covered Acquired Loans [Member] | Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	65,815	86,201
Commercial Business [Member] | Non-Covered Acquired Loans [Member] | Special Mention [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	3,758	2,159
Commercial Business [Member] | Non-Covered Acquired Loans [Member] | Substandard [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	3,914	4,808
Commercial Business [Member] | Non-Covered Acquired Loans [Member] | Doubtful [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	931	2,209
Commercial Business [Member] | Non-Covered Acquired Loans [Member] | Internally Assigned Grade [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans receivable	74,418	95,377
Non-covered commercial loans, net	67,231	83,233
Discount	(7,187)	(12,144)
Commercial Business [Member] | Non-Covered Loans Excluding Acquired Loans [Member] | Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	2,405,197	2,295,788
Commercial Business [Member] | Non-Covered Loans Excluding Acquired Loans [Member] | Special Mention [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	19,896	21,640
Commercial Business [Member] | Non-Covered Loans Excluding Acquired Loans [Member] | Substandard [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	42,240	49,958
Commercial Business [Member] | Non-Covered Loans Excluding Acquired Loans [Member] | Doubtful [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	48	48
Commercial Business [Member] | Non-Covered Loans Excluding Acquired Loans [Member] | Internally Assigned Grade [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Non-covered commercial loans, net	2,467,381	2,367,434
Discount
Non-covered commercial loans, net	2,467,381	2,367,434
Commercial Business [Member] | Covered Loans [Member] | Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	34,212
Commercial Business [Member] | Covered Loans [Member] | Special Mention [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	3,039
Commercial Business [Member] | Covered Loans [Member] | Substandard [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	42,103
Commercial Business [Member] | Covered Loans [Member] | Doubtful [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	443
Commercial Business [Member] | Covered Loans [Member] | Internally Assigned Grade [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	79,797
Commercial Business [Member] | Covered Loans [Member] | Commercial Loans [Member] | Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification		38,552
Commercial Business [Member] | Covered Loans [Member] | Commercial Loans [Member] | Special Mention [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification		8,600
Commercial Business [Member] | Covered Loans [Member] | Commercial Loans [Member] | Substandard [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification		50,018
Commercial Business [Member] | Covered Loans [Member] | Commercial Loans [Member] | Doubtful [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification		451
Commercial Business [Member] | Covered Loans [Member] | Commercial Loans [Member] | Internally Assigned Grade [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification		97,621
Mortgage - Prime [Member] | Non-Covered Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit risk by payment status, Current	24,228	30,663
Credit risk by payment status, Past due greater than 30 days	779	779
Total loans receivable	25,007	31,442
Premium (discount)	(1,202)	1,315
Non-covered commercial loans, net	23,805	32,757
Mortgage - Prime [Member] | Non-Covered Loans Excluding Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit risk by payment status, Current	176,807	185,843
Credit risk by payment status, Past due greater than 30 days	11,871	10,986
Non-covered commercial loans, net	188,678	196,829
Discount
Non-covered commercial loans, net	188,678	196,829
Mortgage - Prime [Member] | Covered Loans [Member] | Mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit risk by payment status, Current	177,811	183,795
Credit risk by payment status, Past due greater than 30 days	44,777	52,379
Credit quality indicator by asset risk classification	222,588	236,174
Mortgage - Subprime [Member] | Non-Covered Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit risk by payment status, Current
Credit risk by payment status, Past due greater than 30 days
Total loans receivable
Premium (discount)
Non-covered commercial loans, net
Mortgage - Subprime [Member] | Non-Covered Loans Excluding Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit risk by payment status, Current	88,799	60,454
Credit risk by payment status, Past due greater than 30 days	7
Non-covered commercial loans, net	88,806	60,454
Discount
Non-covered commercial loans, net	88,806	60,454
Mortgage - Subprime [Member] | Covered Loans [Member] | Mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit risk by payment status, Current
Credit risk by payment status, Past due greater than 30 days
Credit quality indicator by asset risk classification
Indirect Automobile [Member] | Non-Covered Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit risk by payment status, Current	3,716	4,698
Credit risk by payment status, Past due greater than 30 days	212	321
Total loans receivable	3,928	5,019
Premium (discount)
Non-covered commercial loans, net	3,928	5,019
Indirect Automobile [Member] | Non-Covered Loans Excluding Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit risk by payment status, Current	335,953	320,148
Credit risk by payment status, Past due greater than 30 days	2,236	2,818
Non-covered commercial loans, net	338,189	322,966
Indirect Automobile [Member] | Covered Loans [Member] | Consumer Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit risk by payment status, Current
Credit risk by payment status, Past due greater than 30 days
Credit quality indicator by asset risk classification
Credit Card [Member] | Non-Covered Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit risk by payment status, Current
Credit risk by payment status, Past due greater than 30 days
Total loans receivable
Premium (discount)
Non-covered commercial loans, net
Credit Card [Member] | Non-Covered Loans Excluding Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit risk by payment status, Current	50,169	51,117
Credit risk by payment status, Past due greater than 30 days	654	605
Non-covered commercial loans, net	50,823	51,722
Credit Card [Member] | Covered Loans [Member] | Consumer Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit risk by payment status, Current	784	841
Credit risk by payment status, Past due greater than 30 days	35	65
Credit quality indicator by asset risk classification	819	906
Home Equity [Member] | Non-Covered Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit risk by payment status, Current	68,305	73,658
Credit risk by payment status, Past due greater than 30 days	6,695	7,115
Total loans receivable	75,000	80,773
Discount	(7,523)	(4,498)
Non-covered commercial loans, net	67,477	76,275
Home Equity [Member] | Non-Covered Loans Excluding Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit risk by payment status, Current	1,016,663	991,766
Credit risk by payment status, Past due greater than 30 days	8,553	8,872
Non-covered commercial loans, net	1,025,216	1,000,638
Discount
Non-covered commercial loans, net	1,025,216	1,000,638
Home Equity [Member] | Covered Loans [Member] | Consumer Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit risk by payment status, Current	166,129	168,728
Credit risk by payment status, Past due greater than 30 days	54,924	65,997
Credit quality indicator by asset risk classification	221,053	234,725
Other [Member] | Non-Covered Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit risk by payment status, Current	17,631	21,746
Credit risk by payment status, Past due greater than 30 days	1,238	714
Total loans receivable	18,869	22,460
Discount	(1,556)	(6,805)
Non-covered commercial loans, net	17,313	15,655
Other [Member] | Non-Covered Loans Excluding Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit risk by payment status, Current	231,139	201,161
Credit risk by payment status, Past due greater than 30 days	745	981
Non-covered commercial loans, net	231,884	202,142
Discount
Non-covered commercial loans, net	231,884	202,142
Other [Member] | Covered Loans [Member] | Consumer Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit risk by payment status, Current	1,084	1,155
Credit risk by payment status, Past due greater than 30 days	1,637	1,523
Credit quality indicator by asset risk classification	$ 2,721	$ 2,678

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Loans Receivable - Schedule of Subsequently Defaulted TDRs (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013 SecurityLoan	Mar. 31, 2012 SecurityLoan
TDRs That Subsequently Defaulted In Past 12 Months [Member]
Loans Receivable [Line Items]
Number of Loans	58	47
Recorded Investment	$ 16,667	$ 25,919
TDRs That Subsequently Defaulted In Past 12 Months [Member] | Residential Mortgage Loans [Member] | Mortgage - Prime [Member]
Loans Receivable [Line Items]
Number of Loans
Recorded Investment
TDRs That Subsequently Defaulted In Past 12 Months [Member] | Commercial Loans [Member] | Real Estate [Member]
Loans Receivable [Line Items]
Number of Loans	48	40
Recorded Investment	15,147	24,053
TDRs That Subsequently Defaulted In Past 12 Months [Member] | Commercial Loans [Member] | Business [Member]
Loans Receivable [Line Items]
Number of Loans	8	6
Recorded Investment	1,469	1,866
TDRs That Subsequently Defaulted In Past 12 Months [Member] | Consumer And Other Loans [Member] | Indirect Automobile [Member]
Loans Receivable [Line Items]
Number of Loans
Recorded Investment
TDRs That Subsequently Defaulted In Past 12 Months [Member] | Consumer And Other Loans [Member] | Home Equity [Member]
Loans Receivable [Line Items]
Number of Loans	1
Recorded Investment	51
TDRs That Subsequently Defaulted In Past 12 Months [Member] | Consumer And Other Loans [Member] | Credit Card [Member]
Loans Receivable [Line Items]
Number of Loans
Recorded Investment
TDRs That Subsequently Defaulted In Past 12 Months [Member] | Consumer And Other Loans [Member] | Other [Member]
Loans Receivable [Line Items]
Number of Loans	1	1
Recorded Investment
TDRs Occurring During The Period [Member] | Non-Covered TDRs [Member]
Loans Receivable [Line Items]
Number of Loans	1	13
Pre-modification Outstanding Recorded Investment	1,545	4,063
Post-modification Outstanding Recorded Investment	1,545	3,773
TDRs Occurring During The Period [Member] | Residential Mortgage Loans [Member] | Mortgage - Prime [Member] | Non-Covered TDRs [Member]
Loans Receivable [Line Items]
Number of Loans
Pre-modification Outstanding Recorded Investment
Post-modification Outstanding Recorded Investment
TDRs Occurring During The Period [Member] | Commercial Loans [Member] | Real Estate [Member] | Non-Covered TDRs [Member]
Loans Receivable [Line Items]
Number of Loans	1	11
Pre-modification Outstanding Recorded Investment	1,545	4,036
Post-modification Outstanding Recorded Investment	1,545	3,773
TDRs Occurring During The Period [Member] | Commercial Loans [Member] | Business [Member] | Non-Covered TDRs [Member]
Loans Receivable [Line Items]
Number of Loans		1
Pre-modification Outstanding Recorded Investment		27
Post-modification Outstanding Recorded Investment
TDRs Occurring During The Period [Member] | Consumer And Other Loans [Member] | Indirect Automobile [Member] | Non-Covered TDRs [Member]
Loans Receivable [Line Items]
Number of Loans
Pre-modification Outstanding Recorded Investment
Post-modification Outstanding Recorded Investment
TDRs Occurring During The Period [Member] | Consumer And Other Loans [Member] | Home Equity [Member] | Non-Covered TDRs [Member]
Loans Receivable [Line Items]
Number of Loans
Pre-modification Outstanding Recorded Investment
Post-modification Outstanding Recorded Investment
TDRs Occurring During The Period [Member] | Consumer And Other Loans [Member] | Credit Card [Member] | Non-Covered TDRs [Member]
Loans Receivable [Line Items]
Number of Loans
Pre-modification Outstanding Recorded Investment
Post-modification Outstanding Recorded Investment
TDRs Occurring During The Period [Member] | Consumer And Other Loans [Member] | Other [Member] | Non-Covered TDRs [Member]
Loans Receivable [Line Items]
Number of Loans		1
Pre-modification Outstanding Recorded Investment
Post-modification Outstanding Recorded Investment

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Fair Value Measurements - Gains and Losses Included in Earnings Related to Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013
Noninterest income [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total gains (losses) included in earnings (or changes in net assets)	$ (3,012)
Change in unrealized gains (losses) relating to assets still held at December 31, 2012
Other comprehensive income [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total gains (losses) included in earnings (or changes in net assets)
Change in unrealized gains (losses) relating to assets still held at December 31, 2012	$ (468)

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Derivative Instruments and Other Hedging Activities (Tables)

3 Months Ended

Mar. 31, 2013

Derivative Instruments And Hedging Activities Disclosure [Abstract]

Schedule of Outstanding Derivative Instruments

At March 31, 2013 and December 31, 2012, the information pertaining to outstanding derivative instruments is as follows.

		Asset Derivatives					Liability Derivatives
(Dollars in thousands)	Balance Sheet Location	Fair Value				Balance Sheet Location	Fair Value
		March 31, 2013		December 31, 2012			March 31, 2013		December 31, 2012
Derivatives designated as hedging instruments under ASC Topic 815
Interest rate contracts	Other assets	$	1,744	$	499	Other liabilities	$	590	$	1,843
Total derivatives designated as hedging instruments under ASC Topic 815		$	1,744	$	499		$	590	$	1,843
Derivatives not designated as hedging instruments under ASC Topic 815
Interest rate contracts	Other assets	$	22,058	$	25,940	Other liabilities	$	22,059	$	25,940
Forward sales contracts	Other assets		593		2,774	Other liabilities		774		343
Written and purchased options	Other assets		16,813		12,906	Other liabilities		10,749		8,764
Total derivatives not designated as hedging instruments under ASC Topic 815		$	39,464	$	41,620		$	33,582	$	35,047

	Asset Derivatives				Liability Derivatives
(Dollars in thousands)	Notional Amount				Notional Amount
	March 31, 2013		December 31, 2012		March 31, 2013		December 31, 2012
Derivatives designated as hedging instruments under ASC Topic 815
Interest rate contracts	$	35,000	$	35,000	$	35,000	$	35,000
Total derivatives designated as hedging instruments under ASC Topic 815	$	35,000	$	35,000	$	35,000	$	35,000
Derivatives not designated as hedging instruments under ASC Topic 815
Interest rate contracts	$	361,679	$	374,536	$	361,679	$	374,536
Forward sales contracts		66,247		212,028		116,609		53,269
Written and purchased options		434,079		388,793		194,376		185,885
Total derivatives not designated as hedging instruments under ASC Topic 815	$	862,005	$	975,357	$	672,664	$	613,690

Reconciliation of Gross Amounts in Consolidated Balance Sheet

The following table reconciled the gross amounts presented in the consolidated balance sheet to the net amounts that would result in the event of offset as of March 31, 2013 and December 31, 2012.

	March 31, 2013
(Dollars in thousands)	Gross Amounts Presented in the Balance Sheet		Gross Amounts Not  Offset in the Balance Sheet						Net Amount
			Derivatives			Collateral(1)
Derivatives subject to master netting arrangements
Derivative assets
Interest rate contracts designated as hedging instruments	$	1,744	$	(185	)	$	—		$	1,559
Interest rate contracts not designated as hedging instruments		22,058		—			—			22,058
Written and purchased options		10,702		—			—			10,702
Total derivative assets subject to master netting arrangements	$	34,504	$	(185	)	$	—		$	34,319
Derivative liabilities
Interest rate contracts designated as hedging instruments		590		(185	)		—			405
Interest rate contracts not designated as hedging instruments		22,059		—			(12,317	)		9,742
Total derivative liabilities subject to master netting arrangements	$	22,649	$	(185	)	$	(12,317	)	$	10,147

(1) Consists of cash collateral recorded at cost, which approximates fair value, and investment securities.

	December 31, 2012
(Dollars in thousands)	Gross Amounts Presented in the Balance Sheet		Gross Amounts Not  Offset in the Balance Sheet
			Derivatives			Collateral(1)			Net Amount
Derivatives subject to master netting arrangements
Derivative assets
Interest rate contracts designated as hedging instruments	$	499	$	(499	)	$	—		$	—
Interest rate contracts not designated as hedging instruments		25,940		—			—			25,940
Written and purchased options		8,763		—			—			8,763
Total derivative assets subject to master netting arrangements	$	35,202	$	(499	)	$	—		$	34,703
Derivative liabilities
Interest rate contracts designated as hedging instruments		1,843		(499	)		—			1,344
Interest rate contracts not designated as hedging instruments		25,940		—			(13,350	)		12,590
Total derivative liabilities subject to master netting arrangements	$	27,783	$	(499	)	$	(13,350	)	$	13,934

Schedule of Derivative Instruments on Consolidated Financial Statements

At March 31, 2013 and 2012, and for the three months then ended, the information pertaining to the effect of the hedging instruments on the consolidated financial statements is as follows.

(Dollars in thousands)	Amount of Gain (Loss) Recognized in OCI, net of taxes (Effective Portion)				Location of Gain (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	Amount of Gain (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)						Location of Gain (Loss) Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)	Amount of Gain (Loss) Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)
Derivatives in ASC Topic 815 Cash Flow Hedging Relationships	2013		2012			2013			2012				2013		2012
Interest rate contracts	$	751	$	1,558	Other income (expense)	$	(424	)	$	(386	)	Other income (expense)	$	—	$	—
Total	$	751	$	1,558		$	(424	)	$	(386	)		$	—	$	—

(Dollars in thousands)	Location of Gain (Loss) Recognized in Income on Derivatives	Amount of Gain (Loss) Recognized in Income on Derivatives
Derivatives Not Designated as Hedging Instruments under ASC Topic 815		2013			2012
Interest rate contracts	Other income (expense)	$	(1	)	$	—
Forward sales contracts	Mortgage income		(2,912	)		—
Written and purchased options	Mortgage income		1,085			56
Total		$	(1,828	)	$	56

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Investment Securities - Schedule of Realized Gains and Losses from Sale of Securities Classified as Available for Sale (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Investments Debt And Equity Securities [Abstract]
Realized gains	$ 2,365	$ 2,815
Realized losses	(37)	(15)
Net realized gains	$ 2,328	$ 2,800

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Commitments and Contingencies

3 Months Ended

Mar. 31, 2013

Commitments And Contingencies Disclosure [Abstract]

Commitments and Contingencies

NOTE 14 – COMMITMENTS AND CONTINGENCIES

Off-balance sheet commitments

The Company is a party to financial instruments with off-balance sheet risk in the normal course of business to meet the financing needs of its customers. These financial instruments include commitments to extend credit and standby letters of credit. Such commitments involve, to varying degrees, elements of credit and interest rate risk in excess of the amount recognized in the consolidated balance sheets. The same credit policies are used in these commitments as for on-balance sheet instruments. The Company’s exposure to credit loss in the event of nonperformance by the other parties is represented by the contractual amount of the financial instruments. At March 31, 2013, the fair value of guarantees under commercial and standby letters of credit was $772,000. This amount represents the unamortized fee associated with these guarantees and is included in the consolidated balance sheet of the Company. This fair value will decrease over time as the existing commercial and standby letters of credit approach their expiration dates.

At March 31, 2013 and December 31, 2012, the Company had the following financial instruments outstanding, whose contract amounts represent credit risk:

	Contract Amount
(Dollars in thousands)	March 31, 2013		December 31, 2012
Commitments to grant loans	$	329,833	$	192,295
Unfunded commitments under lines of credit		2,533,921		2,372,971
Commercial and standby letters of credit		77,201		62,207

Commitments to extend credit are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Since many of the commitments are expected to be drawn upon, the total commitment amounts generally represent future cash requirements. The Company evaluates each customer’s creditworthiness on a case-by-case basis. The amount of collateral, if deemed necessary by the Company upon extension of credit, is based on management’s credit evaluation of the counterparty.

Unfunded commitments under commercial lines-of-credit, revolving credit lines and overdraft protection agreements are commitments for possible future extensions of credit to existing customers. Many of these types of commitments do not contain a specified maturity date and may not be drawn upon to the total extent to which the Company is committed.

Commercial and standby letters of credit are conditional commitments issued by the Company to guarantee the performance of a customer to a third party. These guarantees are primarily issued to support public and private borrowing arrangements, including commercial paper issuance, bond financing, and similar transactions. The credit risk involved in issuing letters or credit is essentially the same as that involved in extending loan facilities to customers and as such, are collateralized when necessary, generally in the form of marketable securities and cash equivalents.

Legal proceedings

The nature of the business of the Company’s banking and other subsidiaries ordinarily results in a certain amount of claims, litigation, investigations and legal and administrative cases and proceedings, all of which are considered incidental to the normal conduct of business. Some of these claims are against entities or assets of which the Company is a successor or acquired in business acquisitions, and certain of these claims will be covered by loss sharing agreements with the FDIC. The Company has asserted defenses to these litigation and, with respect to such legal proceedings, intends to continue to defend itself vigorously, litigating or settling cases according to management’s judgment as to what is in the best interest of the Company and its shareholders.

The Company assesses its liabilities and contingencies in connection with outstanding legal proceedings utilizing the latest information available. Where it is probable that the Company will incur a loss and the amount of the loss can be reasonably estimated, the Company records a liability in its consolidated financial statements. These legal reserves may be increased or decreased to reflect any relevant developments on a quarterly basis. Where a loss is not probable or the amount of loss is not estimable, the Company does not accrue legal reserves. While the outcome of legal proceedings is inherently uncertain, based on information currently available, advice of counsel and available insurance coverage, the Company’s management believes that it has established appropriate legal reserves. Any liabilities arising from pending legal proceedings are not expected to have a material adverse effect on the Company’s consolidated financial position, consolidated results of operations or consolidated cash flows. However, in the event of unexpected future developments, it is possible that the ultimate resolution of these matters, if unfavorable, may be material to the Company’s consolidated financial position, consolidated results of operations or consolidated cash flows.

As of the date of this filing, the Company believes it is reasonably possible to incur losses above amounts already accrued associated with legal proceedings between $150,000 and $750,000.

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Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2013

Earnings Per Share [Abstract]

Schedule of Calculation of Basic and Diluted Earnings Per Share

The following table presents the calculation of basic and diluted earnings per share for the three months ended March 31, 2013 and 2012.

	For the Three Months Ended March 31,
(Dollars in thousands, except per share data)	2013			2012
Income available to common shareholders	$	717		$	19,393
Distributed earnings (distributed capital) to unvested restricted stock		(14	)		(374	)
Distributed earnings (distributed capital) to common shareholders - Basic		703			19,019
Undistributed earnings reallocated to unvested restricted stock		(6	)		10
Distributed and undistributed earnings to common shareholders - Diluted	$	697		$	19,029
Weighted average shares outstanding - Basic(1)		29,502,711			29,384,220
Weighted average shares outstanding - Diluted		28,979,168			28,928,276
Earnings per common share - Basic	$	0.02		$	0.66
Earnings per common share - Diluted	$	0.02		$	0.66
Earnings per unvested restricted stock share - Basic	$	0.03		$	0.70
Earnings per unvested restricted stock share - Diluted	$	0.04		$	0.68

(1) Weighted average basic shares outstanding include 564,543 and 535,005 shares of unvested restricted stock for the three months ended March 31, 2013 and 2012, respectively.

Schedule of Basic Earnings Per Common Share

Additional information on the Company’s basic earnings per common share is shown in the following table.

	For the Three Months Ended March 31,
(Dollars in thousands, except per share data)	2013			2012
Distributed earnings to common shareholders	$	9,896		$	9,842
Undistributed earnings (distributed capital) to common shareholders		(9,193	)		9,177
Total earnings to common shareholders	$	703		$	19,019
Distributed earnings to unvested restricted stock	$	199		$	194
Undistributed earnings (distributed capital) to unvested restricted stock		(185	)		180
Total earnings allocated to restricted stock	$	14		$	374
Distributed earnings per common share	$	0.34		$	0.34
Undistributed earnings (distributed capital) per common share		(0.32	)		0.32
Total earnings per common share - Basic	$	0.02		$	0.66
Distributed earnings per unvested restricted stock share	$	0.35		$	0.36
Undistributed earnings (distributed capital) per unvested restricted stock share		(0.33	)		0.34
Total earnings per unvested restricted stock share - Basic	$	0.02		$	0.70

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Subsequent Events - Additional Information (Detail) (Subsequent Events [Member])	Apr. 25, 2013 Branches
Subsequent Events [Member]
Subsequent Event [Line Items]
Closure of branches	9

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Investment Securities - Schedule of Securities with Gross Unrealized Losses Aggregated by Investment Category (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Schedule of Securities Available-for-sale And Held To Maturity [Line Items]
Securities available for sale, Less Than Twelve Months, Gross Unrealized Losses	$ (2,150)	$ (1,859)
Securities available for sale, Less Than Twelve Months, Fair Value	354,205	239,768
Securities available for sale, Over Twelve Months, Gross Unrealized Losses	(180)	(187)
Securities available for sale, Over Twelve Months, Fair Value	3,773	5,013
Securities available for sale, Gross Unrealized Losses, Total	(2,330)	(2,046)
Securities available for sale, Fair Value, Total	357,978	244,781
Securities held to maturity, Less Than Twelve Months, Gross Unrealized Losses	(678)	(266)
Securities held to maturity, Less Than Twelve Months, Fair Value	34,850	24,504
Securities held to maturity, Over Twelve Months, Gross Unrealized Losses
Securities held to maturity, Over Twelve Months, Fair Value
Securities held to maturity, Gross Unrealized Losses, Total	(678)	(266)
Securities held to maturity, Fair Value, Total	34,850	24,504
U.S. Government-sponsored enterprise obligations [Member]
Schedule of Securities Available-for-sale And Held To Maturity [Line Items]
Securities available for sale, Less Than Twelve Months, Gross Unrealized Losses	(298)	(386)
Securities available for sale, Less Than Twelve Months, Fair Value	165,763	59,741
Securities available for sale, Gross Unrealized Losses, Total	(298)	(386)
Securities available for sale, Fair Value, Total	165,763	59,741
Securities held to maturity, Less Than Twelve Months, Gross Unrealized Losses
Securities held to maturity, Less Than Twelve Months, Fair Value
Securities held to maturity, Over Twelve Months, Gross Unrealized Losses
Securities held to maturity, Over Twelve Months, Fair Value
Securities held to maturity, Gross Unrealized Losses, Total
Securities held to maturity, Fair Value, Total
Obligations of state and political subdivisions [Member]
Schedule of Securities Available-for-sale And Held To Maturity [Line Items]
Securities available for sale, Less Than Twelve Months, Gross Unrealized Losses	(1)
Securities available for sale, Less Than Twelve Months, Fair Value	336
Securities available for sale, Over Twelve Months, Gross Unrealized Losses	(178)	(178)
Securities available for sale, Over Twelve Months, Fair Value	1,094	1,094
Securities available for sale, Gross Unrealized Losses, Total	(179)	(178)
Securities available for sale, Fair Value, Total	1,430	1,094
Securities held to maturity, Less Than Twelve Months, Gross Unrealized Losses	(232)	(113)
Securities held to maturity, Less Than Twelve Months, Fair Value	10,478	8,242
Securities held to maturity, Over Twelve Months, Gross Unrealized Losses
Securities held to maturity, Over Twelve Months, Fair Value
Securities held to maturity, Gross Unrealized Losses, Total	(232)	(113)
Securities held to maturity, Fair Value, Total	10,478	8,242
Mortgage backed securities [Member]
Schedule of Securities Available-for-sale And Held To Maturity [Line Items]
Securities available for sale, Less Than Twelve Months, Gross Unrealized Losses	(1,851)	(1,473)
Securities available for sale, Less Than Twelve Months, Fair Value	188,106	180,027
Securities available for sale, Over Twelve Months, Gross Unrealized Losses	(2)	(9)
Securities available for sale, Over Twelve Months, Fair Value	2,679	3,919
Securities available for sale, Gross Unrealized Losses, Total	(1,853)	(1,482)
Securities available for sale, Fair Value, Total	190,785	183,946
Securities held to maturity, Less Than Twelve Months, Gross Unrealized Losses	(446)	(153)
Securities held to maturity, Less Than Twelve Months, Fair Value	24,372	16,262
Securities held to maturity, Over Twelve Months, Gross Unrealized Losses
Securities held to maturity, Over Twelve Months, Fair Value
Securities held to maturity, Gross Unrealized Losses, Total	(446)	(153)
Securities held to maturity, Fair Value, Total	$ 24,372	$ 16,262

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Recent Accounting Pronouncements - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2013
Accounting Policies [Abstract]
Amortization expense	$ 5,453,000

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Consolidated Statements Of Shareholders' Equity (USD $) In Thousands, except Share data	Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income [Member]	Treasury Stock [Member]
Beginning balance at Dec. 31, 2011	$ 1,482,661	$ 31,163	$ 1,135,880	$ 375,184	$ 24,457	$ (84,023)
Beginning balance, shares at Dec. 31, 2011		31,163,070				1,789,165
Net income	19,393			19,393
Other comprehensive income (loss)	963				963
Cash dividends declared, $0.34 per share	(10,036)			(10,036)
Reissuance of treasury stock under incentive plan, net of shares surrendered in payment, including tax benefit	399		(489)			888
Reissuance of treasury stock under incentive plan, shares						(141,961)
Common stock issued for recognition and retention plan			(6,145)			6,145
Share-based compensation cost	2,250		2,250
Ending balance at Mar. 31, 2012	1,495,630	31,163	1,131,496	384,541	25,420	(76,990)
Ending balance, shares at Mar. 31, 2012		31,163,070				1,647,204
Beginning balance at Dec. 31, 2012	1,529,868	31,917	1,176,180	411,472	24,477	(114,178)
Beginning balance, shares at Dec. 31, 2012		31,917,385				2,427,640
Net income	717			717
Other comprehensive income (loss)	(1,185)				(1,185)
Cash dividends declared, $0.34 per share	(10,095)	0		(10,095)
Reissuance of treasury stock under incentive plan, net of shares surrendered in payment, including tax benefit	2,253		(1,193)			3,446
Reissuance of treasury stock under incentive plan, shares						(202,036)
Common stock issued for recognition and retention plan			(8,078)			8,078
Share-based compensation cost	2,512		2,512
Treasury stock acquired at cost
Ending balance at Mar. 31, 2013	$ 1,524,070	$ 31,917	$ 1,169,421	$ 402,094	$ 23,292	$ (102,654)
Ending balance, shares at Mar. 31, 2013		31,917,385				2,225,604

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Commitments and Contingencies - Additional Information (Detail) (USD $)	Mar. 31, 2013
Commitments Contingencies And Guarantees [Line Items]
Fair value of guarantees under commercial and standby letters of credit	$ 772,000
Minimum
Commitments Contingencies And Guarantees [Line Items]
Estimated losses associated with legal proceedings	150,000
Maximum
Commitments Contingencies And Guarantees [Line Items]
Estimated losses associated with legal proceedings	$ 750,000

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Earnings Per Share

3 Months Ended

Mar. 31, 2013

Earnings Per Share [Abstract]

Earnings Per Share

NOTE 3 – EARNINGS PER SHARE

Share-based payment awards that entitle holders to receive non-forfeitable dividends before vesting are considered participating securities and thus included in the calculation of basic earnings per share. These awards are included in the calculation of basic earnings per share under the two-class method. The two-class method allocates earnings for the period between common shareholders and other security holders. The participating awards receiving dividends will be allocated the same amount of income as if they were outstanding shares.

The following table presents the calculation of basic and diluted earnings per share for the three months ended March 31, 2013 and 2012.

	For the Three Months Ended March 31,
(Dollars in thousands, except per share data)	2013			2012
Income available to common shareholders	$	717		$	19,393
Distributed earnings (distributed capital) to unvested restricted stock		(14	)		(374	)
Distributed earnings (distributed capital) to common shareholders - Basic		703			19,019
Undistributed earnings reallocated to unvested restricted stock		(6	)		10
Distributed and undistributed earnings to common shareholders - Diluted	$	697		$	19,029
Weighted average shares outstanding - Basic(1)		29,502,711			29,384,220
Weighted average shares outstanding - Diluted		28,979,168			28,928,276
Earnings per common share - Basic	$	0.02		$	0.66
Earnings per common share - Diluted	$	0.02		$	0.66
Earnings per unvested restricted stock share - Basic	$	0.03		$	0.70
Earnings per unvested restricted stock share - Diluted	$	0.04		$	0.68

(1) Weighted average basic shares outstanding include 564,543 and 535,005 shares of unvested restricted stock for the three months ended March 31, 2013 and 2012, respectively.

Additional information on the Company’s basic earnings per common share is shown in the following table.

	For the Three Months Ended March 31,
(Dollars in thousands, except per share data)	2013			2012
Distributed earnings to common shareholders	$	9,896		$	9,842
Undistributed earnings (distributed capital) to common shareholders		(9,193	)		9,177
Total earnings to common shareholders	$	703		$	19,019
Distributed earnings to unvested restricted stock	$	199		$	194
Undistributed earnings (distributed capital) to unvested restricted stock		(185	)		180
Total earnings allocated to restricted stock	$	14		$	374
Distributed earnings per common share	$	0.34		$	0.34
Undistributed earnings (distributed capital) per common share		(0.32	)		0.32
Total earnings per common share - Basic	$	0.02		$	0.66
Distributed earnings per unvested restricted stock share	$	0.35		$	0.36
Undistributed earnings (distributed capital) per unvested restricted stock share		(0.33	)		0.34
Total earnings per unvested restricted stock share - Basic	$	0.02		$	0.70

For the three months ended March 31, 2013 and 2012, the calculations for basic shares outstanding exclude the weighted average shares owned by the Recognition and Retention Plan (“RRP”) of 641,922 and 590,013, respectively, and are adjusted for the weighted average shares in treasury stock of 2,337,295 and 1,723,843, respectively.

The effect from the assumed exercise of 790,431 and 528,719 stock options was not included in the computation of diluted earnings per share for three months ended March 31, 2013 and 2012, respectively, because such amounts would have had an antidilutive effect on earnings per share.

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Loans Receivable - Schedule of Carrying Amount of Acquired Covered Loans (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Loans Receivable [Line Items]
Acquired Impaired Loans	$ 190,837	$ 213,645
Acquired Performing Loans	813,336	879,111
Total Covered Loans	1,004,173	1,092,756
Residential Mortgage Loans [Member]
Loans Receivable [Line Items]
Acquired Impaired Loans	18,388	20,232
Acquired Performing Loans	158,940	166,932
Total Covered Loans	177,328	187,164
Residential Mortgage Loans [Member] | Residential 1-4 Family [Member]
Loans Receivable [Line Items]
Acquired Impaired Loans	18,388	20,232
Acquired Performing Loans	158,940	166,932
Total Covered Loans	177,328	187,164
Commercial Loans [Member]
Loans Receivable [Line Items]
Acquired Impaired Loans	149,764	170,499
Acquired Performing Loans	504,889	557,395
Total Covered Loans	654,653	727,894
Commercial Loans [Member] | Real Estate [Member]
Loans Receivable [Line Items]
Acquired Impaired Loans	146,932	167,742
Acquired Performing Loans	420,689	473,101
Total Covered Loans	567,621	640,843
Commercial Loans [Member] | Business [Member]
Loans Receivable [Line Items]
Acquired Impaired Loans	2,832	2,757
Acquired Performing Loans	84,200	84,294
Total Covered Loans	87,032	87,051
Consumer And Other Loans [Member]
Loans Receivable [Line Items]
Acquired Impaired Loans	22,685	22,914
Acquired Performing Loans	149,507	154,784
Total Covered Loans	172,192	177,698
Consumer And Other Loans [Member] | Home Equity [Member]
Loans Receivable [Line Items]
Acquired Impaired Loans	21,917	22,094
Acquired Performing Loans	146,561	152,117
Total Covered Loans	168,478	174,211
Consumer And Other Loans [Member] | Other [Member]
Loans Receivable [Line Items]
Acquired Impaired Loans	768	820
Acquired Performing Loans	2,946	2,667
Total Covered Loans	$ 3,714	$ 3,487

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Share-Based Compensation - Estimate Fair Value of Share-Based Awards with Weighted-Average Assumptions (Detail) (Options Granted During the Period [Member], USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Options Granted During the Period [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected dividends	2.60%	2.60%
Expected volatility	34.80%	41.00%
Risk-free interest rate	1.70%	0.90%
Expected term (in years)	8 years 7 months 6 days	5 years
Weighted-average grant-date fair value	$ 15.37	$ 14.74

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Transfers and Servicing of Financial Assets (Including Mortgage Banking Activity) - Schedule of Mortgage Servicing Rights at Carrying Values (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Acquired Indefinite-lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 46,754	$ 46,754
Accumulated Amortization	(27,877)	(26,694)
Net Carrying Amount	18,877	20,060
Mortgage servicing rights [Member]
Acquired Indefinite-lived Intangible Assets [Line Items]
Gross Carrying Amount	1,426	1,234
Accumulated Amortization	(375)	(304)
Net Carrying Amount	$ 1,051	$ 930

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Disposition Activity (Tables)

3 Months Ended

Mar. 31, 2013

Text Block [Abstract]

Schedule of Branch Closure Costs

The following table shows the costs the Company incurred that are included in its statement of comprehensive income for the three months ended March 31, 2013.

(Dollars in thousands, except per share data)	2013
Employee termination	$	55
Accelerated depreciation		375
Total	$	430

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Other Real Estate Owned - Schedule of Other Real Estate Owned Segregated into Covered and Non-Covered Properties (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Real Estate Properties [Line Items]
Real estate owned acquired by foreclosure	$ 121,262	$ 110,864
Real estate acquired for development or resale	9,199	9,199
Other foreclosed property	1,375	1,473
Total other real estate owned and foreclosed property	131,836	121,536
Non-covered properties [Member]
Real Estate Properties [Line Items]
Real estate owned acquired by foreclosure	33,391	35,080
Real estate acquired for development or resale	9,199	9,199
Other foreclosed property	48	14
Total other real estate owned and foreclosed property	42,638	44,293
Covered properties [Member]
Real Estate Properties [Line Items]
Real estate owned acquired by foreclosure	87,871	75,784
Real estate acquired for development or resale
Other foreclosed property	1,327	1,459
Total other real estate owned and foreclosed property	$ 89,198	$ 77,243

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Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2013

Fair Value Disclosures [Abstract]

Financial Asset and Liabilities Measured at Fair Value on Recurring Basis

The Company has segregated all financial assets and liabilities that are measured at fair value on a recurring basis into the most appropriate level within the fair value hierarchy based on the inputs used to estimate the fair value at the measurement date in the tables below.

(Dollars in thousands)			Fair Value Measurements Using
Recurring Basis Description	March 31,   2013		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Available -for-sale securities	$	1,951,548	$	35,008	$	1,916,540	$	—
Derivative instruments		41,208		—		41,208		—
Total	$	1,992,756	$	35,008	$	1,957,748	$	—
Liabilities
Derivative instruments		34,383		—		34,383		—
Total	$	34,383	$	—	$	34,383	$	—

(Dollars in thousands)			Fair Value Measurements Using
Recurring Basis Description	December 31, 2012		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Available -for-sale securities	$	1,745,004	$	—	$	1,745,004	$	—
Derivative instruments		42,119		—		42,119		—
Total	$	1,787,123	$	—	$	1,787,123	$	—
Liabilities
Derivative instruments		36,890		—		36,890		—
Total	$	36,890	$	—	$	36,890	$	—

Gains and Losses Included in Earnings Related to Asset and Liabilities Measured at Fair Value on Recurring Basis

Gains and losses (realized and unrealized) included in earnings (or changes in net assets) for the first three months of 2013 related to assets and liabilities measured at fair value on a recurring basis are reported in noninterest income or other comprehensive income as follows:

(Dollars in thousands)	Noninterest income			Other comprehensive income
Total gains (losses) included in earnings (or changes in net assets)	$	(3,012	)	$	—
Change in unrealized gains (losses) relating to assets still held at December 31, 2012		—			(468	)

Financial Asset and Liabilities Measured at Fair Value on Nonrecurring Basis

The Company has segregated all financial assets and liabilities that are measured at fair value on a nonrecurring basis into the most appropriate level within the fair value hierarchy based on the inputs used to determine the fair value at the measurement date in the tables below.

(Dollars in thousands)			Fair Value Measurements Using
Nonrecurring Basis Description	March 31,   2013		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Loans	$	6,295	$	—	$	6,295	$	—
Mortgage loans held for sale		46,966		—		46,966		—
OREO		23,710		—		23,710		—
Total	$	76,971	$	—	$	76,971	$	—

(Dollars in thousands)			Fair Value Measurements Using
Nonrecurring Basis Description	December 31, 2012		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Loans	$	6,388	$	—	$	6,388	$	—
Mortgage loans held for sale		32,753		—		32,753		—
OREO		20,427		—		20,427		—
Total	$	59,568	$	—	$	59,568	$	—

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Share-Based Compensation

3 Months Ended

Mar. 31, 2013

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Share-Based Compensation

NOTE 13 – SHARE-BASED COMPENSATION

The Company has various types of share-based compensation plans. These plans are administered by the Compensation Committee of the Board of Directors, which selects persons eligible to receive awards and determines the number of shares and/or options subject to each award, the terms, conditions and other provisions of the awards. During the three months ended March 31, 2013 and 2012, the Company did not have any equity awards that were settled in cash.

Stock option plans

The Company issues stock options under various plans to directors, officers and other key employees. The option exercise price cannot be less than the fair value of the underlying common stock as of the date of the option grant and the maximum option term cannot exceed ten years. The stock options granted were issued with vesting periods ranging from one-and-a half to seven years. At March 31, 2013, future option or restricted stock awards of 485,197 shares could be made under approved incentive compensation plans.

The following table represents the compensation expense that is included in salaries and employee benefits expense and related income tax benefits in the accompanying consolidated statements of comprehensive income related to stock options for the three months ended March 31, 2013 and 2012.

(Dollars in thousands, except per share data)	2013		2012
Compensation expense related to stock options	$	533	$	442
Income tax benefit related to stock options		187		155
Impact on basic earnings per share		0.01		0.01
Impact on diluted earnings per share		0.01		0.01

The Company reported $330,000 and $268,000 of excess tax benefits as financing cash inflows during the three months ended March 31, 2013 and 2012, respectively, related to the exercise and vesting of stock option exercises. Net cash proceeds from the exercise of stock options were $3,181,000 and $1,111,000 for the three months ended March 31, 2013 and 2012, respectively.

The Company uses the Black-Scholes option pricing model to estimate the fair value of share-based awards. The following weighted-average assumptions were used for option awards granted during the three-month periods ended March 31:

	2013			2012
Expected dividends		2.6	%		2.6	%
Expected volatility		34.8	%		41.0	%
Risk-free interest rate		1.7	%		0.9	%
Expected term (in years)		8.6			5.0
Weighted-average grant-date fair value	$	15.37		$	14.74

The assumptions above are based on multiple factors, including historical stock option exercise patterns and post-vesting employment termination behaviors, expected future exercise patterns and the expected volatility of the Company’s stock price.

At March 31, 2013, there was $5,720,000 of unrecognized compensation cost related to stock options which is expected to be recognized over a weighted-average period of 5.1 years.

The following table represents the activity related to stock options during the three months ended March 31, 2013 and 2012.

	Number of shares			Weighted average exercise price		Weighted average remaining contract life
Outstanding options, December 31, 2011		1,097,620		$	50.14
Granted		217,230			51.78
Exercised		(34,278	)		28.98
Forfeited or expired		(3,258	)		51.19
Outstanding options, March 31, 2012		1,277,314		$	50.98		5.2 years
Exercisable options, March 31, 2012		796,208			42.59		3.2 years
Outstanding options, December 31, 2012		1,236,075		$	51.48
Granted		75,722			52.36
Exercised		(91,348	)		34.81
Forfeited or expired		(14,270	)		57.19
Outstanding options, March 31, 2013		1,206,179		$	52.73		5.1 Years
Outstanding exercisable at March 31, 2013		777,945		$	52.21		3.4 Years

At March 31, 2013, the aggregate intrinsic value of shares underlying outstanding stock options and underlying exercisable stock options was $1,671,000 and $1,618,000. Total intrinsic value of options exercised was $1,350,000 and $804,000 for the three months ended March 31, 2013 and 2012, respectively.

Restricted stock plans

The Company issues restricted stock under various plans for certain officers and directors. A supplemental stock benefit plan adopted in 1999 and the 2001, 2005, 2008, and 2010 Incentive Plans allow grants of restricted stock. The plans allow for the issuance of restricted stock awards that may not be sold or otherwise transferred until certain restrictions have lapsed. The holders of the restricted stock receive dividends and have the right to vote the shares. The fair value of the restricted stock shares awarded under these plans is recorded as unearned share-based compensation, a contra-equity account. The unearned compensation related to these awards is amortized to compensation expense over the vesting period (generally three to seven years). The total share-based compensation expense for these awards is determined based on the market price of the Company’s common stock at the date of grant applied to the total number of shares granted and is amortized over the vesting period. As of March 31, 2013, unearned share-based compensation associated with these awards totaled $27,628,000.

The following table represents the compensation expense that was included in salaries and employee benefits expense in the accompanying consolidated statements of income related to restricted stock grants for the three months ended March 31:

(Dollars in thousands)	2013		2012
Compensation expense related to restricted stock	$	1,877	$	1,710

The following table represents unvested restricted stock award activity for the three months ended March 31, 2013 and 2012:

	2013			2012
Balance, beginning of year		538,202			512,112
Granted		148,518			134,988
Forfeited		(11,673	)		(3,055	)
Earned and issued		(89,366	)		(74,928	)
Balance, end of year		585,681			569,117

Phantom stock awards

As part of the 2008 Incentive Compensation Plan and 2009 Phantom Stock Plan, the Company issues phantom stock awards to certain key officers and employees. The award is subject to a vesting period of five to seven years and is paid out in cash upon vesting. The amount paid per vesting period is calculated as the number of vested “share equivalents” multiplied by the closing market price of a share of the Company’s common stock on the vesting date. Share equivalents are calculated on the date of grant as the total award’s dollar value divided by the closing market price of a share of the Company’s common stock on the grant date. Award recipients are also entitled to a “dividend equivalent” on each unvested share equivalent held by the award recipient. A dividend equivalent is a dollar amount equal to the cash dividends that the participant would have been entitled to receive if the participant’s share equivalents were issued in shares of common stock. Dividend equivalents will be deemed to be reinvested as share equivalents that will vest and be paid out on the same date as the underlying share equivalents on which the dividend equivalents were paid. The number of share equivalents acquired with a dividend equivalent is determined by dividing the aggregate of dividend equivalents paid on the unvested share equivalents by the closing price of a share of the Company’s common stock on the dividend payment date.

The following table represents phantom stock award activity during the periods indicated. During the three months ended March 31, 2013 and 2012, the Company recorded $699,000 and $751,000, respectively, in compensation expense based on the number of share equivalents vested at the end of the period and the current market price of the Company’s stock.

	Number of share equivalents			Dividend equivalents			Total share equivalents			Value of share equivalents(1)
Balance, December 31, 2011		232,921			8,942			241,863		$	11,924,000
Granted		97,927			2,109			100,036			5,349,000
Forfeited share equivalents		(2,191	)		(95	)		(2,286	)		(122,000	)
Vested share equivalents		(5,483	)		(350	)		(5,833	)		(309,000	)
Balance, March 31, 2012		323,174			10,606			333,780		$	17,847,000
Balance, December 31, 2012		318,729			16,035			334,764		$	16,444,000
Granted		158,213			3,092			161,305			8,068,000
Forfeited share equivalents		(5,176	)		(243	)		(5,419	)		(271,000	)
Vested share equivalents		(30,697	)		(2,120	)		(32,817	)		(1,655,000	)
Balance, March 31, 2013		441,069			16,764			457,833		$	22,901,000

(1) Except for vested share payments, which are based on the cash paid at the time of vesting, the value of share equivalents is calculated based on the market price of the Company’s stock at the end of the respective periods. The market price of the Company’s stock was $50.02 and $53.47 on March 31, 2013 and 2012, respectively.