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 June 30, 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)

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 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  ¨

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

At July 31, 2013, the Registrant had 29,731,338 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)		2
	Consolidated Balance Sheets as of June 30, 2013 and December 31, 2012		5
	Consolidated Statements of Comprehensive Income for the three and six months ended June 30, 2013 and 2012		6
	Consolidated Statements of Shareholders’ Equity for the six months ended June 30, 2013 and 2012		7
	Consolidated Statements of Cash Flows for the six months ended June 30, 2013 and 2012		8
	Notes to Unaudited Consolidated Financial Statements		9
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations		50
Item 3.	Quantitative and Qualitative Disclosures About Market Risk		88
Item 4.	Controls and Procedures		88
Part II.	Other Information
Item 1.	Legal Proceedings		89
Item 1A.	Risk Factors		89
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds		89
Item 3.	Defaults Upon Senior Securities		89
Item 4.	Mine Safety Disclosures		89
Item 5.	Other Information		89
Item 6.	Exhibits		90
Signatures			91

IBERIABANK CORPORATION AND SUBSIDIARIES

Consolidated Balance Sheets

(unaudited)

	June 30			December 31
(Dollars in thousands, except share data)	2013			2012
Assets
Cash and due from banks	$	227,114		$	248,214
Interest-bearing deposits in banks		120,451			722,763
Total cash and cash equivalents		347,565			970,977
Securities available for sale, at fair value		1,912,058			1,745,004
Securities held to maturity, fair values of $163,352 and $211,498, respectively		163,240			205,062
Mortgage loans held for sale		162,031			267,475
Loans covered by loss share agreements		918,215			1,092,756
Non-covered loans, net of unearned income		7,984,822			7,405,824
Total loans, net of unearned income		8,903,037			8,498,580
Allowance for loan losses		(162,903	)		(251,603	)
Loans, net		8,740,134			8,246,977
FDIC loss share receivables		241,040			423,069
Premises and equipment, net		296,988			303,523
Goodwill		401,872			401,872
Other assets		558,575			565,719
Total Assets	$	12,823,503		$	13,129,678
Liabilities
Deposits:
Noninterest-bearing	$	2,055,333		$	1,967,662
Interest-bearing		8,586,385			8,780,615
Total deposits		10,641,718			10,748,277
Short-term borrowings		289,377			303,045
Long-term debt		283,485			423,377
Other liabilities		104,162			125,111
Total Liabilities		11,318,742			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		1,172,359			1,176,180
Retained earnings		407,582			411,472
Accumulated other comprehensive income		(4,912	)		24,477
Treasury stock at cost - 2,207,327 and 2,427,640 shares, respectively		(102,185	)		(114,178	)
Total Shareholders’ Equity		1,504,761			1,529,868
Total Liabilities and Shareholders’ Equity	$	12,823,503		$	13,129,678

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

5

IBERIABANK CORPORATION AND SUBSIDIARIES

Consolidated Statements of Comprehensive Income

(unaudited)

	For The Three Months Ended June 30						For The Six Months Ended June 30
(Dollars in thousands, except per share data)	2013			2012			2013			2012
Interest and Dividend Income
Loans, including fees	$	115,242		$	124,874		$	238,309		$	248,809
Mortgage loans held for sale, including fees		1,351			1,232			2,676			2,281
Investment securities:
Taxable interest		7,301			9,073			14,406			18,611
Tax-exempt interest		1,677			1,863			3,432			3,780
Amortization of FDIC loss share receivable		(18,130	)		(28,484	)		(45,831	)		(56,411	)
Other		736			725			1,601			1,400
Total interest and dividend income		108,177			109,283			214,593			218,470
Interest Expense
Deposits:
NOW and MMDA		4,614			5,933			10,021			12,079
Savings		74			155			167			305
Time deposits		4,372			6,559			9,026			14,225
Short-term borrowings		121			167			261			309
Long-term debt		2,514			3,297			5,764			6,518
Total interest expense		11,695			16,111			25,239			33,436
Net interest income		96,482			93,172			189,354			185,034
(Reversal of) provision for loan losses		1,807			8,895			(1,569	)		11,752
Net interest income after provision for credit losses		94,675			84,277			190,923			173,282
Noninterest Income
Service charges on deposit accounts		7,106			6,625			13,903			12,606
Mortgage income		17,708			18,185			36,639			31,903
Title revenue		5,696			5,339			10,717			9,872
ATM/debit card fee income		2,357			2,166			4,541			4,189
Income from bank owned life insurance		901			905			1,840			1,855
Gain (loss) on sale of available for sale investments		(66	)		901			2,261			3,702
Derivative losses reclassified from other comprehensive income		33			(400	)		(392	)		(786	)
Broker commissions		3,863			3,102			7,397			6,162
Other income		4,891			4,871			10,074			9,587
Total noninterest income		42,489			41,694			86,980			79,090
Noninterest Expense
Salaries and employee benefits		63,815			58,121			126,344			112,940
Net occupancy and equipment		14,283			12,908			29,478			25,627
Impairment of long-lived assets		4,618			2,743			36,431			2,743
Communication and delivery		3,116			3,138			6,387			6,271
Marketing and business development		3,049			2,753			6,136			5,775
Data processing		4,264			3,430			8,256			6,606
Professional services		5,101			5,617			9,519			9,717
Credit and other loan related expense		4,168			4,836			7,907			8,862
Other expenses		14,947			15,476			31,801			30,355
Total noninterest expense		117,361			109,022			262,259			208,896
Income before income tax expense		19,803			16,949			15,644			43,476
Income tax expense (benefit)		4,213			4,389			(663	)		11,523
Net Income		15,590			12,560			16,307			31,953
Preferred Stock Dividends		—			—			—			—
Income Available to Common Shareholders - Basic	$	15,590		$	12,560		$	16,307		$	31,953
Earnings Allocated to Unvested Restricted Stock		(293	)		(240	)		(313	)		(607	)
Earnings Available to Common Shareholders - Diluted		15,297			12,320			15,994			31,346
Earnings per common share - Basic	$	0.53		$	0.43		$	0.55		$	1.09
Earnings per common share - Diluted		0.53			0.43			0.55			1.08
Cash dividends declared per common share		0.34			0.34			0.68			0.68
Other comprehensive income
Unrealized gains on securities:
Unrealized holding gains (losses) arising during the period	$	(42,303	)	$	3,195		$	(44,297	)	$	2,139
Less: reclassification adjustment for gains (losses) included in net income		66			(901	)		(2,261	)		(3,702	)
Unrealized (loss) gain on securities, before tax		(42,237	)		2,294			(46,558	)		(1,563	)
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		(1,121	)		(7,634	)		952			(2,683	)
Less: reclassification adjustment for losses (gains) included in net income		(33	)		400			392			786
Fair value of derivative instruments designated as cash flow hedges, before tax		(1,154	)		(7,234	)		1,344			(1,897	)
Other comprehensive (loss), before tax		(43,391	)		(4,940	)		(45,214	)		(3,460	)
Income tax benefit related to items of other comprehensive loss		(15,187	)		(1,729	)		(15,825	)		(1,211	)
Other comprehensive loss, net of tax		(28,204	)		(3,211	)		(29,389	)		(2,249	)
Comprehensive income (loss)	$	(12,614	)	$	9,349		$	(13,082	)	$	29,704

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

6

IBERIABANK CORPORATION AND SUBSIDIARIES

Consolidated Statements of Shareholders’ Equity

(unaudited)

											Accumulated
					Additional						Other
	Common Stock				Paid-In			Retained			Comprehensive			Treasury Stock
(Dollars in thousands, except share and per share data)	Shares		Amount		Capital			Earnings			Income (Loss)			Shares			Amount			Total
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		—		—		—			31,953			—			—			—			31,953
Other comprehensive loss		—		—		—			—			(2,249	)		—			—			(2,249	)
Cash dividends declared, $0.68 per share		—		—		—			(20,066	)		—			—			—			(20,066	)
Reissuance of treasury stock under incentive plan, net of shares surrendered in payment, including tax benefit		—		—		(515	)		—			—			(171,310	)		669			154
Common stock issued for recognition and retention plan		—		—		(7,420	)		—			—			—			7,420			—
Share-based compensation cost		—		—		4,897			—			—			—			—			4,897
Treasury stock acquired at cost		—		—		—			—			—			48,188			(2,310	)		(2,310	)
Balance, June 30, 2012		31,163,070	$	31,163	$	1,132,842		$	387,071		$	22,208			1,666,043		$	(78,244	)	$	1,495,040
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		—		—		—			16,307			—			—			—			16,307
Other comprehensive loss		—		—		—			—			(29,389	)		—			—			(29,389	)
Cash dividends declared, $0.68 per share		—		—		—			(20,197	)		—			—			—			(20,197	)
Reissuance of treasury stock under incentive plan, net of shares surrendered in payment, including tax benefit		—		—		(1,120	)		—			—			(220,313	)		4,031			2,911
Common stock issued for recognition and retention plan		—		—		(7,962	)		—			—			—			7,962			—
Share-based compensation cost		—		—		5,261			—			—			—			—			5,261
Balance, June 30, 2013		31,917,385	$	31,917	$	1,172,359		$	407,582		$	(4,912	)		2,207,327		$	(102,185	)	$	1,504,761

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

7

IBERIABANK CORPORATION AND SUBSIDIARIES

Consolidated Statements of Cash Flows

(unaudited)

	For The Six Months Ended June 30,
(Dollars in thousands)				(Restated)
	2013			2012
Cash Flows from Operating Activities
Net income	$	16,307		$	31,953
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization		13,346			9,987
Amortization of purchase accounting adjustments, net		(10,879	)		(18,895	)
(Reversal of) provision for loan losses		(1,569	)		11,752
Noncash compensation expense		5,261			4,897
(Gain) loss on sale of assets		(49	)		49
Gain on sale of available for sale investments		(2,261	)		(3,702	)
Gain on sale of OREO		(2,975	)		(2,614	)
Loss on abandonment of fixed assets		4,618			2,743
Impairment of FDIC loss share receivables		31,813			—
Amortization of premium/discount on investments		10,683			9,949
Derivative (gains) losses on swaps		(209	)		—
(Benefit) provision for deferred income taxes		(12,198	)		712
Mortgage loans held for sale
Originations		(1,207,676	)		(1,042,020	)
Proceeds from sales		1,350,910			1,044,444
Gain on sale of loans, net		(37,790	)		(29,980	)
Tax benefit associated with share-based payment arrangements		(417	)		(285	)
Decrease (Increase) in other assets		732			(976	)
Other operating activities, net		5,798			11,922
Net Cash Provided by Operating Activities		163,445			29,936
Cash Flows from Investing Activities
Proceeds from sales of securities available for sale		44,675			82,392
Proceeds from maturities, prepayments and calls of securities available for sale		494,593			528,943
Purchases of securities available for sale		(760,640	)		(697,042	)
Proceeds from maturities, prepayments and calls of securities held to maturity		47,101			27,805
Purchases of securities held to maturity		(5,901	)		(24,056	)
FDIC reimbursement of recoverable covered asset losses		49,582			85,072
Increase in loans receivable, net		(427,489	)		(362,615	)
Proceeds from sale of premises and equipment		639			354
Purchases of premises and equipment		(8,735	)		(17,558	)
Proceeds from disposition of real estate owned		44,082			56,812
Other investing activities, net		11,400			(998	)
Net Cash Used in Investing Activities		(510,693	)		(320,891	)
Cash Flows from Financing Activities
(Decrease) increase in deposits, net of deposits acquired		(106,219	)		127,846
Net change in short-term borrowings, net of borrowings acquired		(13,668	)		245,225
Proceeds from long-term debt		2,230			9,858
Repayments of long-term debt		(141,296	)		(43,043	)
Dividends paid to shareholders		(20,122	)		(20,025	)
Proceeds from sale of treasury stock for stock options exercised		4,238			1,337
Payments to repurchase common stock		(1,744	)		(3,778	)
Tax benefit associated with share-based payment arrangements		417			285
Net Cash (Used in) Provided by Financing Activities		(276,164	)		317,705
Net (Decrease) Increase In Cash and Cash Equivalents		(623,412	)		26,750
Cash and Cash Equivalents at Beginning of Period		970,977			573,296
Cash and Cash Equivalents at End of Period	$	347,565		$	600,046
Supplemental Schedule of Noncash Activities
Acquisition of real estate in settlement of loans	$	51,733		$	62,306
Transfers of property into Other Real Estate	$	51,733		$	62,306
Supplemental Disclosures
Cash paid for:
Interest on deposits and borrowings	$	25,797		$	34,388
Income taxes, net	$	19,558		$	10,833

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

8

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 consolidated 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 the Company and its wholly owned subsidiaries, IBERIABANK, Lenders Title Company (“LTC”), IBERIA Capital Partners L.L.C. (“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 the Company’s commercial and single family residential indemnification agreements are five years 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 assets. 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 amount collectible from the FDIC 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 the 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.

9

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.

A claim receivable is established within other assets when a loss is incurred and the indemnification asset is reduced 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 June 30, 2013, the Company has $162,031,000 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 are included in Note 16.

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 (OREO)

Fair values of OREO at June 30, 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 $1,402,000 and $1,477,000 in earnings for the three months ended June 30, 2013 and 2012, respectively, and $2,556,000 and $4,033,000 for the six months ended June 30, 2013 and 2012, respectively.

10

Derivative financial instruments

The Company may utilize 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.

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 for the three- and six-month periods ended June 30, 2013 by $4,967,000 and $10,420,000, respectively, 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 on the Company’s consolidated financial statements for the three months ended June 30, 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 statements 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 13 in these unaudited consolidated financial statements.

ASU No. 2011-11 and ASU No. 2013-01

In the first quarter of 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 resulted in additional disclosures incorporated in Note 12 of these unaudited consolidated financial statements.

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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						For the Six Months Ended
	June 30						June 30
(Dollars in thousands, except per share data)	2013			2012			2013			2012
Income available to common shareholders	$	15,590		$	12,560		$	16,307		$	31,953
Distributed earnings (capital) to unvested restricted stock		(290	)		(240	)		(313	)		(613	)
Distributed earnings (capital) to common shareholders - basic		15,300			12,320			15,994			31,340
Undistributed earnings reallocated to unvested restricted stock		(3	)		—			—			6
Distributed and undistributed earnings to common shareholders - diluted	$	15,297		$	12,320		$	15,994		$	31,346
Weighted average shares outstanding - basic (1)		29,610,315			29,463,811			29,556,810			29,424,078
Weighted average shares outstanding - diluted		29,066,906			28,950,806			29,023,002			28,939,291
Earnings per common share - basic	$	0.53		$	0.43		$	0.55		$	1.09
Earnings per common share - diluted		0.53			0.43			0.55			1.08
Earnings per unvested restricted stock share - basic		0.51			0.43			0.55			1.12
Earnings per unvested restricted stock share - diluted		0.52			0.43			0.55			1.10

(1) Weighted average basic shares outstanding include 567,162 and 563,882 shares of unvested restricted stock for the three months ended June 30, 2013 and 2012, respectively, and 565,860 and 549,479 shares for the six months ended June 30, 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				For the Six Months Ended
	June 30				June 30
(Dollars in thousands, except per share data)	2013		2012		2013			2012
Distributed earnings to common shareholders	$	9,914	$	9,838	$	19,810		$	19,680
Undistributed earnings (distributed capital) to common shareholders		5,386		2,482		(3,816	)		11,660
Total earnings to common shareholders	$	15,300	$	12,320	$	15,994		$	31,340
Distributed earnings to unvested restricted stock	$	188	$	192	$	387		$	385
Undistributed earnings (distributed capital) to unvested restricted stock		102		48		(74	)		228
Total earnings allocated to restricted stock	$	290	$	240	$	313		$	613
Distributed earnings per common share	$	0.34	$	0.34	$	0.68		$	0.68
Undistributed earnings (distributed capital) per common share		0.19		0.09		(0.13	)		0.41
Total earnings per common share - basic	$	0.53	$	0.43	$	0.55		$	1.09
Distributed earnings per unvested restricted stock share	$	0.33	$	0.34	$	0.68		$	0.70
Undistributed earnings (distributed capital) per unvested restricted stock share		0.18		0.09		(0.13	)		0.42
Total earnings per unvested restricted stock share - basic	$	0.51	$	0.43	$	0.55		$	1.12

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For the three months ended June 30, 2013 and 2012, the calculations for basic shares outstanding exclude the weighted average shares owned by the Recognition and Retention Plan (“RRP”) of 652,683 and 620,924, respectively, and are adjusted for the weighted average shares in treasury stock of 2,221,550 and 1,642,217, respectively. For the six months ended June 30, 2013 and 2012, basic shares outstanding exclude 647,332 and 605,469 shares owned by the RRP, respectively, and are adjusted for 2,279,103 and 1,683,003 shares, respectively, of weighted average shares of treasury stock.

The effect from the assumed exercise of 792,893 and 743,628 stock options was not included in the computation of diluted earnings per share for three months ended June 30, 2013 and 2012, respectively, because such amounts would have had an antidilutive effect on earnings per common share. For the six months ended June 30, 2013 and 2012, the effect from the assumed exercise of 787,893 and 612,200 stock options, respectively, was not included in the computation of diluted earnings per share because such amounts would have had an antidilutive effect on earnings per common share.

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. During the second quarter of 2013, the Company announced plans to close or consolidate ten additional branches. As part of these branch closures, the Company incurred various disposal costs during the three and six months ended June 30, 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 statements of comprehensive income for the periods indicated.

	For the Three Months Ended		For the Six Months Ended
(Dollars in thousands)	June 30, 2013		June 30, 2013
Employee termination	$	314	$	369
Accelerated depreciation		306		681
Impairment		4,618		4,618
	$	5,238	$	5,668

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

NOTE 5 – INVESTMENT SECURITIES

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

	June 30, 2013
			Gross		Gross			Estimated
	Amortized		Unrealized		Unrealized			Fair
(Dollars in thousands)	Cost		Gains		Losses			Value
Securities available for sale:
U.S. Government-sponsored enterprise obligations	$	430,701	$	1,814	$	(7,768	)	$	424,747
Obligations of state and political obligations		114,008		3,293		(218	)		117,083
Mortgage-backed securities		1,374,322		12,735		(18,317	)		1,368,740
Other securities		1,460		28		—			1,488
Total securities available for sale	$	1,920,491	$	17,870	$	(26,303	)	$	1,912,058
Securities held to maturity:
U.S. Government-sponsored enterprise obligations	$	34,465	$	771	$	—		$	35,236
Obligations of state and political obligations		89,005		1,945		(1,331	)		89,619
Mortgage-backed securities		39,770		396		(1,669	)		38,497
Total securities held to maturity	$	163,240	$	3,112	$	(3,000	)	$	163,352

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	December 31, 2012
			Gross		Gross			Estimated
	Amortized		Unrealized		Unrealized			Fair
(Dollars in thousands)	Cost		Gains		Losses			Value
Securities available for sale:
U.S. Government-sponsored enterprise obligations	$	281,746	$	4,364	$	(386	)	$	285,724
Obligations of state and political obligations		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 obligations		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 $1,400,204,000 and $1,712,860,000 were pledged to secure public deposits and other borrowings at June 30, 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 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 the investment 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.

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Information pertaining to securities with gross unrealized losses aggregated by investment category and length of time that individual securities have been in a continuous loss position is as follows:

	June 30, 2013
	Less Than Twelve Months					Over Twelve Months					Total
	Gross			Estimated		Gross			Estimated		Gross			Estimated
	Unrealized			Fair		Unrealized			Fair		Unrealized			Fair
(Dollars in thousands)	Losses			Value		Losses			Value		Losses			Value
Securities available for sale:
U.S. Government-sponsored enterprise obligations	$	(7,768	)	$	283,840	$	—		$	—	$	(7,768	)	$	283,840
Obligations of state and political obligations		(10	)		481		(208	)		1,065		(218	)		1,546
Mortgage-backed securities		(17,927	)		778,907		(390	)		15,534		(18,317	)		794,441
Total securities available for sale	$	(25,705	)	$	1,063,228	$	(598	)	$	16,599	$	(26,303	)	$	1,079,827
Securities held to maturity:
Obligations of state and political obligations	$	(1,268	)	$	29,792	$	(63	)	$	1,264	$	(1,331	)	$	31,056
Mortgage-backed securities		(1,669	)		26,252		—			—		(1,669	)		26,252
Total securities held to maturity	$	(2,937	)	$	56,044	$	(63	)	$	1,264	$	(3,000	)	$	57,308

	December 31, 2012
	Less Than Twelve Months					Over Twelve Months					Total
	Gross			Estimated		Gross			Estimated		Gross			Estimated
	Unrealized			Fair		Unrealized			Fair		Unrealized			Fair
(Dollars in thousands)	Losses			Value		Losses			Value		Losses			Value
Securities available for sale:
U.S. Government-sponsored enterprise obligations	$	(386	)	$	59,741	$	—		$	—	$	(386	)	$	59,741
Obligations of state and political obligations		—			—		(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:
Obligations of state and political obligations	$	(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 June 30, 2013 and December, 31, 2012 to determine if there are losses that should be 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.

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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 June 30, 2013, 160 debt securities had unrealized losses of 2.51% of the securities’ amortized cost basis and 1.41% of the Company’s total amortized cost basis. The unrealized losses for each of the 160 securities relate to market interest rate changes. Four of the 160 securities have been in a continuous loss position for over twelve months at June 30, 2013. These four securities had an aggregate amortized cost basis and unrealized loss of $18,523,000 and $660,000, respectively. Two of the four securities were issued by either the Federal National Mortgage Association (Fannie Mae) or the Federal Home Loan Mortgage Corporation (Freddie Mac). Fannie Mae and Freddie Mac securities are rated AA+ by S&P and Aaa by Moodys. One of the securities in a continuous loss position for over twelve months was issued by a political subdivision. The bond issuer has a credit rating of A+ by S&P. In addition, the bond is insured by the AAA rated Texas Permanent School Fund and as a result, the Company concluded that an other-than-temporary impairment charge was not required at June 30, 2013. The remaining security in a continuous unrealized loss position for over twelve months was issued by a political subdivision and is 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 six 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 six months ended June 30, 2013 and 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 June 30, 2013 or December 31, 2012.

The amortized cost and estimated fair value of investment securities by maturity at June 30, 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
	Weighted					Estimated		Weighted					Estimated
	Average			Amortized		Fair		Average			Amortized		Fair
(Dollars in thousands)	Yield			Cost		Value		Yield			Cost		Value
Within one year or less		2.44	%	$	3,814	$	3,857		2.25	%	$	17,991	$	18,299
One through five years		1.36			245,643		245,107		2.49			24,104		24,760
After five through ten years		1.93			580,896		579,393		2.71			26,140		26,862
Over ten years		1.80			1,090,138		1,083,701		2.84			95,005		93,431
		1.79	%	$	1,920,491	$	1,912,058		2.70	%	$	163,240	$	163,352

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The following is a summary of realized gains and losses from the sale of securities classified as available for sale. Gains or losses on securities sold are recorded on the trade date, using the specific identification method.

	Three Months Ended June 30					Six Months Ended June 30
(Dollars in thousands)	2013			2012		2013			2012
Realized gains	$	4		$	901	$	2,369		$	3,717
Realized losses		(70	)		—		(108	)		(15	)
	$	(66	)	$	901	$	2,261		$	3,702

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

Other Equity Securities

At June 30, 2013 and December 31, 2012, the Company included the following securities in “Other assets” on the Company’s consolidated balance sheets:

	June 30		December 31
(Dollars in thousands)	2013		2012
Federal Home Loan Bank (FHLB) stock	$	10,312	$	16,860
Federal Reserve Bank (FRB) stock		28,098		28,155
Other investments		1,306		1,201
	$	39,716	$	46,216

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NOTE 6 – LOANS RECEIVABLE

Loans receivable consist of the following, segregated into non-covered and covered loans, for the periods indicated:

	June 30, 2013
(Dollars in thousands)	Non-covered loans		Covered loans		Total
Commercial loans:
Real estate	$	3,224,078	$	520,160	$	3,744,238
Business		2,618,963		68,957		2,687,920
		5,843,041		589,117		6,432,158
Residential mortgage loans:
Residential 1-4 family		346,098		167,654		513,752
Construction / Owner Occupied		4,744		—		4,744
		350,842		167,654		518,496
Consumer and other loans:
Home equity		1,120,974		157,849		1,278,823
Indirect automobile		351,631		—		351,631
Other		318,334		3,595		321,929
		1,790,939		161,444		1,952,383
	$	7,984,822	$	918,215	$	8,903,037

	December 31, 2012
(Dollars in thousands)	Non-covered loans		Covered loans		Total
Commercial loans:
Real estate	$	2,990,700	$	640,843	$	3,631,543
Business		2,450,667		87,051		2,537,718
		5,441,367		727,894		6,169,261
Residential mortgage loans:
Residential 1-4 family		284,019		187,164		471,183
Construction / Owner Occupied		6,021		—		6,021
		290,040		187,164		477,204
Consumer and other loans:
Home equity		1,076,913		174,212		1,251,125
Indirect automobile		327,985		—		327,985
Other		269,519		3,486		273,005
		1,674,417		177,698		1,852,115
	$	7,405,824	$	1,092,756	$	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 (“Sterling”). The loans and foreclosed real estate that were acquired in these transactions are covered by loss sharing agreements between the FDIC and IBERIABANK, which afford IBERIABANK significant loss protection. Refer to Note 8 for additional information regarding the Company’s loss sharing agreements.

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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 agreements. 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 agreements as “non-covered loans.”

Deferred loan origination fees were $15,429,000 and $14,040,000 and deferred loan expenses were $6,453,000 and $5,270,000 at June 30, 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 June 30, 2013 and December 31, 2012, overdrafts of $2,530,000 and $3,231,000, respectively, have been reclassified to loans receivable.

Loans with carrying values of $2.2 billion and $1.5 billion were pledged to secure public deposits and other borrowings at June 30, 2013 and December 31, 2012, respectively.

Non-covered Loans

The following tables provide an analysis of the aging of non-covered loans as of June 30, 2013 and December 31, 2012. Because of the difference in 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.

	June 30, 2013
	Non-covered loans excluding acquired loans
											Total Non-covered Loans, Net of Unearned Income		Recorded Investment  > 90 days and Accruing
	Past Due  (1)
(Dollars in thousands)	30-59 days		60-89 days		> 90 days		Total		Current
Commercial real estate construction	$	104	$	—	$	4,577	$	4,681	$	320,739	$	325,420	$	45
Commercial real estate - other		8,275		1,318		13,804		23,397		2,480,504		2,503,901		76
Commercial business		89		20		14,028		14,137		2,544,729		2,558,866		—
Residential prime		580		547		8,725		9,852		207,986		217,838		750
Residential subprime		—		—		—		—		108,009		108,009		—
Home equity		1,213		343		7,257		8,813		1,050,562		1,059,375		200
Indirect automobile		1,109		309		1,012		2,430		346,049		348,479		—
Credit card		102		54		424		580		51,663		52,243		—
Other		990		122		313		1,425		248,977		250,402		—
	$	12,462	$	2,713	$	50,140	$	65,315	$	7,359,218	$	7,424,533	$	1,071

⁽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.

19

	December 31, 2012
	Non-covered loans excluding acquired loans
											Total Non-covered		Recorded
	Past Due  (1)										Loans, Net of		Investment > 90 days
(Dollars in thousands)	30-59 days		60-89 days		> 90 days		Total		Current		Unearned Income		and Accruing
Commercial real estate construction	$	60	$	—	$	5,479	$	5,539	$	288,137	$	293,676	$	—
Commercial 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
Residential prime		662		1,156		9,168		10,986		185,843		196,829		801
Residential subprime		—		—		—		—		60,454		60,454		—
Home equity		2,283		796		5,793		8,872		991,766		1,000,638		158
Indirect automobile		1,624		326		868		2,818		320,148		322,966		—
Credit card		130		51		424		605		51,117		51,722		—
Other		566		105		310		981		201,161		202,142		—
	$	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.

	June 30, 2013
	Non-covered acquired loans
														Total Non-covered		Recorded
	Past Due  (1)													Loans, Net of		Investment > 90 days
(Dollars in thousands)	30-59 days		60-89 days		> 90 days		Total		Current		Discount			Unearned Income		and Accruing
Commercial real estate construction	$	186	$	51	$	3,740	$	3,977	$	20,732	$	(5,087	)	$	19,622	$	3,740
Commercial real estate - other		2,413		1,576		34,942		38,931		389,991		(53,787	)		375,135		34,942
Commercial business		340		97		2,519		2,956		63,962		(6,821	)		60,097		2,519
Residential prime		—		—		779		779		25,217		(1,001	)		24,995		779
Home equity		911		427		4,848		6,186		62,388		(6,975	)		61,599		4,848
Indirect automobile		58		14		118		190		2,962		—			3,152		118
Other		179		165		1,015		1,359		15,571		(1,241	)		15,689		1,015
	$	4,087	$	2,330	$	47,961	$	54,378	$	580,823	$	(74,912	)	$	560,289	$	47,961

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

20

	December 31, 2012
	Non-covered acquired loans
														Total Non-covered		Recorded
	Past Due  (1)													Loans, Net of		Investment > 90 days
(Dollars in thousands)	30-59 days		60-89 days		> 90 days		Total		Current		Discount			Unearned Income		and Accruing
Commercial real estate construction	$	369	$	—	$	4,067	$	4,436	$	29,098	$	(3,968	)	$	29,566	$	4,067
Commercial 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
Residential prime		—		—		779		779		30,663		1,315			32,757		779
Home equity		2,379		382		4,354		7,115		73,658		(4,498	)		76,275		4,354
Indirect automobile		171		4		146		321		4,698		—			5,019		146
Other		202		17		495		714		21,746		(6,805	)		15,655		495
	$	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.

Nonaccrual Loans

The following table provides the recorded investment of non-covered loans on nonaccrual status at June 30, 2013 and December 31, 2012. Nonaccrual loans in the table exclude acquired loans.

(Dollars in thousands)	June 30, 2013		December 31, 2012
Commercial real estate construction	$	4,533	$	5,479
Commercial real estate - other		13,728		23,475
Commercial business		14,028		3,358
Residential prime		7,974		8,367
Home equity		7,057		5,635
Indirect automobile		1,012		868
Credit card		424		424
Other		350		310
	$	49,106	$	47,916

21

Covered Loans

The carrying amount of the acquired covered loans at June 30, 2013 and December 31, 2012 consisted of loans determined to be impaired at the acquisition date, 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.

	June 30, 2013
	Acquired		Acquired		Total
	Impaired		Performing		Covered
(Dollars in thousands)	Loans		Loans		Loans
Commercial loans:
Real estate	$	132,565	$	387,595	$	520,160
Business		2,005		66,952		68,957
		134,570		454,547		589,117
Residential mortgage loans:
Residential 1-4 family		17,969		149,685		167,654
Construction / Owner Occupied		—		—		—
		17,969		149,685		167,654
Consumer and other loans:
Home equity		18,791		139,058		157,849
Indirect automobile		—		—		—
Other		713		2,882		3,595
		19,504		141,940		161,444
	$	172,043	$	746,172	$	918,215

	December 31, 2012
	Acquired		Acquired		Total
	Impaired		Performing		Covered
(Dollars in thousands)	Loans		Loans		Loans
Commercial loans:
Real estate	$	167,742	$	473,101	$	640,843
Business		2,757		84,294		87,051
		170,499		557,395		727,894
Residential mortgage loans:
Residential 1-4 family		20,232		166,932		187,164
Construction / Owner Occupied		—		—		—
		20,232		166,932		187,164
Consumer and other loans:
Home equity		22,094		152,118		174,212
Indirect automobile		—		—		—
Other		820		2,666		3,486
		22,914		154,784		177,698
	$	213,645	$	879,111	$	1,092,756

ASC 310-30 loans

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

22

The following is a summary of changes in the accretable yields of acquired loans during the six months ended June 30, 2013 and 2012.

	June 30, 2013									June 30, 2012
	Acquired			Acquired			Total			Acquired			Acquired			Total
	Impaired			Performing			Acquired			Impaired			Performing			Acquired
(Dollars in thousands)	Loans			Loans			Loans			Loans			Loans			Loans
Balance at beginning of period	$	76,623		$	279,770		$	356,393		$	83,834		$	386,977		$	470,811
Transfers from nonaccretable difference to accretable yield		6,368			32,039			38,407			—			—			—
Accretion		(10,973	)		(81,227	)		(92,200	)		(12,878	)		(109,850	)		(122,728	)
Changes in expected cash flows not affecting nonaccretable differences (1)		4,158			70,721			74,879			5,277			(4,158	)		1,119
Balance at end of period	$	76,176		$	301,303		$	377,479		$	76,233		$	272,969		$	349,202

(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 six months of 2013 increased primarily as a result of changes in expected cash flows not impacting the nonaccretable difference, offset by an increase in accretion recognized during the period. Accretable yield during the first six months of 2012 decreased primarily as a result of the accretion recognized.

Troubled Debt Restructurings

Information about the Company’s TDRs at June 30, 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 ASC Topic 310-30, which include the covered loans above, as well as the loans acquired in the OMNI and Cameron acquisitions completed during 2011 and certain loans 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 certain loans from Florida Gulf that would otherwise meet the criteria for classification as a troubled debt restructuring are excluded from the tables below.

	June 30, 2013								June 30, 2012
	Accruing Loans								Accruing Loans
			Past Due		Nonaccrual		Total				Past Due		Nonaccrual		Total
(Dollars in thousands)	Current		> 30 days		TDRs		TDRs		Current		> 30 days		TDRs		TDRs
Commercial real estate construction	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—
Commercial real estate - other		677		—		8,064		8,741		645		—		19,848		20,493
Commercial business		1,135		—		281		1,416		24		—		1,887		1,911
Residential prime		—		—		—		—		—		—		—		—
Residential subprime		—		—		—		—		—		—		—		—
Home equity		—		—		268		268		—		—		226		226
Indirect automobile		—		—		—		—		—		—		—		—
Credit card		—		—		—		—		—		—		—		—
Other		—		—		—		—		—		—		—		—
	$	1,812	$	—	$	8,613	$	10,425	$	669	$	—	$	21,961	$	22,630

TDRs totaling $1,545,000 occurred during the current six-month period through modification of the original loan terms. The TDR that occurred during the current year was subsequently charged off during the six-month period June 30, 2013. Total TDRs of $27,339,000 at June 30, 2012 included $4,061,000 of TDRs that occurred during the six-month period ended June 30, 2012. The following table provides information on how the TDRs were modified during the periods indicated.

23

	Six Months Ended
	June 30
(Dollars in thousands)	2013		2012
Expected maturities	$	—	$	427
Interest rate adjustment		—		277
Maturity and interest rate adjustment		1,545		2,450
Movement to or extension of interest-rate only payments		—		540
Forbearance		—		30
Covenant modifications		—		—
Other concession(s) (1)		—		—
	$	1,545	$	3,724

(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 is presented in the following table.

	June 30, 2013						June 30, 2012
			Pre-modification		Post-modification				Pre-modification		Post-modification
			Outstanding		Outstanding				Outstanding		Outstanding
	Number of		Recorded		Recorded		Number of		Recorded		Recorded
(In thousands, except number of loans)	Loans		Investment		Investment  (1)		Loans		Investment		Investment  (1)
Commercial real estate		1	$	1,545	$	—		12	$	4,073	$	3,724
Commercial business		—		—		—		1		27		—
Residential prime		—		—		—		—		—		—
Home Equity		—		—		—		—		—		—
Indirect automobile		—		—		—		—		—		—
Credit card		—		—		—		—		—		—
Other		—		—		—		1		—		—
		1	$	1,545	$	—		14	$	4,100	$	3,724

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

24

Information detailing non-covered TDRs that subsequently defaulted during the previous twelve months is presented in the following table. 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.

	June 30, 2013				June 30, 2012
	Number of		Recorded		Number of		Recorded
(In thousands, except number of loans)	Loans		Investment		Loans		Investment
Commercial real estate		48	$	8,673		45	$	20,233
Commercial business		8		1,417		8		1,887
Residential prime		—		—		—		—
Home Equity		1		49		1		226
Indirect automobile		—		—		—		—
Credit card		—		—		—		—
Other		1		—		1		—
		58	$	10,139		55	$	22,346

25

NOTE 7 – ALLOWANCE FOR CREDIT LOSSES AND CREDIT QUALITY

Change in Methodology

During the three months ended June 30, 2013, the Company modified its methodology for estimating its allowance for credit losses on its non-covered, non-acquired loan portfolio to incorporate practices, processes, and methodologies consistent with the guidance provided in the Office of the Comptroller of Currency’s (“OCC”) inter-agency policy statement 2006 SR 06-17. The methodology was modified to segregate the reserve for unfunded lending commitments (“RULC”), previously included in the Company’s allowance for credit losses, into a separate liability on the Company’s balance sheet, and to enhance the existing methodology around loss migration.

As part of the modification, the Company’s calculation of its allowance for credit losses incorporates a new loss migration model designed by the Company to improve its estimates of credit losses by:

• Providing a greater degree of segmentation of the Company’s non-covered, non-acquired loan portfolio within its existing homogeneous pools with distinct risk characteristics;

• Improving the application of the Company’s specific historical loss rates to effectively generate estimated incurred loss rates for these various pools of the loan portfolio; and

• Facilitating future loan portfolio stress testing.

The following changes were made from the Company’s previous methodology utilized through the three months ended March 31, 2013:

• Segregation of the RULC noted above;

• Creation of a transition matrix-based model that calculates current incurred loss estimates based on Company-specific history of risk rating changes and net charge-offs across multiple loan pools in its portfolio; and

• Elimination of the use of published available expected default frequencies (“EDFs”) adjusted for the Company’s experience in estimating losses in the Company’s commercial real estate and business loan portfolios.

The following table presents the effect of the change in methodology on the Company’s unaudited consolidated financial statements as of and for the three months ended June 30, 2013.

(Dollars in thousands)	New Methodology			Previous Methodology		Difference			Per Share Difference
Selected Data
Allowance for loan losses	$	61,599		$	72,396	$	(10,797	)
Reserve for unfunded lending commitments		10,342			—		10,342
Allowance for credit losses	$	71,941		$	72,396	$	(455	)
(Reversal of) Provision for loan losses	$	(585	)	$	384	$	(969	)	$	(0.02	)
Provision for unfunded lending commitments		514			—		514			0.01
Total provision for credit losses	$	(71	)	$	384	$	(455	)	$	(0.01	)

26

Allowance for Credit Losses Activity

A summary of changes in the allowance for credit losses for the covered loan and non-covered loan portfolios is as follows.

	June 30, 2013
	Non-covered loans
(Dollars in thousands)	Excluding Acquired Loans			Acquired Loans			Covered Loans			Total
Allowance for loan losses
Balance, beginning of period	$	74,211		$	8,816		$	168,576		$	251,603
(Reversal of) Provision for loan losses before benefit attributable to FDIC loss share agreements		(585	)		(1,009	)		(55,060	)		(56,654	)
Adjustment attributable to FDIC loss share arrangements		—			—			55,085			55,085
Net (reversal of) provision for loan losses		(585	)		(1,009	)		25			(1,569	)
Decrease in FDIC loss share receivable		—			—			(55,085	)		(55,085	)
Transfer of balance to OREO		—			(973	)		(16,712	)		(17,685	)
Transfer of balance to the RUFC		(9,828	)		—			—			(9,828	)
Loans charged-off		(4,249	)		—			(2,334	)		(6,583	)
Recoveries		2,050			—			—			2,050
Balance, end of period	$	61,599		$	6,834		$	94,470		$	162,903
Reserve for unfunded lending commitments
Balance, beginning of period	$	—		$	—		$	—		$	—
Transfer of balance from the allowance for loan losses		9,828			—			—			9,828
Provision for unfunded lending commitments		514			—			—			514
Balance, end of period	$	10,342		$	—		$	—		$	10,342

	June 30, 2012
	Non-covered loans
	Excluding Acquired Loans			Acquired Loans			Covered Loans			Total
Allowance for loan losses
Balance, beginning of period	$	74,861		$	—		$	118,900		$	193,761
(Reversal of) Provision for loan losses before benefit attributable to FDIC loss share agreements		5,277			4,293			12,815			22,385
Adjustment attributable to FDIC loss share arrangements		—			—			(10,633	)		(10,633	)
Net (reversal of) provision for loan losses		5,277			4,293			2,182			11,752
Increase in FDIC loss share receivable		—			—			10,633			10,633
Transfer of balance to OREO		—			(308	)		(12,689	)		(12,997	)
Loans charged-off		(4,218	)		(179	)		(13,283	)		(17,680	)
Recoveries		1,775			22			19			1,816
Balance, end of period	$	77,695		$	3,828		$	105,762		$	187,285

27

A summary of changes in the allowance for credit losses for non-covered loans, by loan portfolio type, is as follows:

	June 30, 2013
(Dollars in thousands)	Commercial real estate			Commercial business			Mortgage			Consumer			Unallocated		Total
Allowance for loan losses
Balance at beginning of period	$	38,264		$	28,721		$	2,125		$	13,917		$	—	$	83,027
(Reversal of) Provision for loan losses		(7,459	)		557			2,961			2,347			—		(1,594	)
Transfer of balance to OREO		(264	)		(90	)		(612	)		(7	)		—		(973	)
Transfer of balance to the RUFC		(2,939	)		(3,497	)		(40	)		(3,352	)		—		(9,828	)
Loans charged off		(807	)		(395	)		(2,603	)		(444	)		—		(4,249	)
Recoveries		500			259			188			1,103			—		2,050
Balance at end of period	$	27,295		$	25,555		$	2,019		$	13,564		$	—	$	68,433
Reserve for unfunded commitments
Balance at beginning of period	$	—		$	—		$	—		$	—		$	—	$	—
Transfer of balance from the allowance for loan losses		2,939			3,497			40			3,352			—		9,828
Provision for unfunded commitments		545			12			—			(43	)		—		514
Balance at end of period	$	3,484		$	3,509		$	40		$	3,309		$	—	$	10,342
Allowance on loans individually evaluated for impairment	$	72		$	116		$	137		$	—		$	—	$	325
Allowance on loans collectively evaluated for impairment		27,223			25,439			1,882			13,564			—		68,108
Loans, net of unearned income:
Balance at end of period	$	3,224,078		$	2,618,963		$	350,842		$	1,790,939		$	—	$	7,984,822
Balance at end of period individually evaluated for impairment		16,525			14,014			1,152			267			—		31,958
Balance at end of period collectively evaluated for impairment		3,207,553			2,604,949			349,690			1,790,672			—		7,952,864
Balance at end of period acquired with deteriorated credit quality		40,015			3,468			383			3,287			—		47,153

	June 30, 2012
(Dollars in thousands)	Commercial real estate			Commercial business			Mortgage			Consumer			Unallocated		Total
Allowance for credit losses
Balance at beginning of period	$	35,604		$	25,705		$	897		$	12,655		$	—	$	74,861
(Reversal of) Provision for loan losses		2,320			4,576			712			1,962			—		9,570
Transfer of balance to OREO		(76	)		—			(226	)		(6	)		—		(308	)
Loans charged off		(1,154	)		(435	)		(246	)		(2,562	)		—		(4,397	)
Recoveries		654			61			21			1,061			—		1,797
Balance at end of period	$	37,348		$	29,907		$	1,158		$	13,110		$	—	$	81,523
Allowance on loans individually evaluated for impairment	$	1,307		$	201		$	187		$	—		$	—	$	1,695
Allowance on loans collectively evaluated for impairment		36,041			29,706			971			13,110			—		79,828
Loans, net of unearned income:
Balance at end of period	$	2,660,509		$	2,180,479		$	235,221		$	1,470,156		$	—	$	6,546,365
Balance at end of period individually evaluated for impairment		28,841			2,402			1,612			226			—		33,081
Balance at end of period collectively evaluated for impairment		2,631,668			2,178,077			233,609			1,469,930			—		6,513,284
Balance at end of period acquired with deteriorated credit quality		34,650			560			—			4,971			—		40,181

28

A summary of changes in the allowance for credit losses for covered loans, by loan portfolio type, is as follows:

	June 30, 2013
(Dollars in thousands)	Commercial       real estate			Commercial     business			Mortgage			Consumer			Unallocated		Total
Allowance for loan losses
Balance at beginning of period	$	100,871		$	11,375		$	22,566		$	33,764		$	—	$	168,576
(Reversal of) Provision for loan losses		27			—			(1	)		(1	)		—		25
(Decrease) Increase in FDIC loss share receivable		(26,737	)		(2,672	)		(7,073	)		(18,603	)		—		(55,085	)
Transfer of balance to OREO		(12,178	)		(314	)		(4,221	)		1			—		(16,712	)
Loans charged off		(2,334	)		—			—			—			—		(2,334	)
Balance at end of period	$	59,649		$	8,389		$	11,271		$	15,161		$	—	$	94,470
Allowance on loans individually evaluated for impairment	$	—		$	—		$	—		$	—		$	—	$	—
Allowance on loans collectively evaluated for impairment		59,649			8,389			11,271			15,161			—		94,470
Loans, net of unearned income:
Balance at end of period	$	520,160		$	68,957		$	167,654		$	161,444		$	—	$	918,215
Balance at end of period individually evaluated for impairment		—			—			—			—			—		—
Balance at end of period collectively evaluated for impairment		520,160			68,957			167,654			161,444			—		918,215
Balance at end of period acquired with deteriorated credit quality		132,565			2,005			17,969			19,504			—		172,043

	June 30, 2012
(Dollars in thousands)	Commercial       real estate			Commercial     business			Mortgage			Consumer			Unallocated		Total
Allowance for credit losses
Balance at beginning of period	$	69,175		$	9,788		$	21,184		$	18,753		$	—	$	118,900
(Reversal of) Provision for loan losses		2,821			848			(1,549	)		62			—		2,182
(Decrease) Increase in FDIC loss share receivable		11,238			1,097			1,354			(3,056	)		—		10,633
Transfer of balance to OREO		(8,545	)		(119	)		(3,200	)		(825	)		—		(12,689	)
Loans charged off		(13,143	)		—			(131	)		(9	)		—		(13,283	)
Recoveries		16			—			—			3			—		19
Balance at end of period	$	61,562		$	11,614		$	17,658		$	14,928		$	—	$	105,762
Allowance on loans individually evaluated for impairment	$	—		$	—		$	—		$	—		$	—	$	—
Allowance on loans collectively evaluated for impairment		61,562			11,614			17,658			14,928			—		105,762
Loans, net of unearned income:
Balance at end of period	$	653,354		$	125,681		$	183,568		$	227,544		$	—	$	1,190,147
Balance at end of period individually evaluated for impairment		—			—			—			—			—		—
Balance at end of period collectively evaluated for impairment		653,354			125,681			183,568			227,544			—		1,190,147
Balance at end of period acquired with deteriorated credit quality		170,803			3,842			29,303			24,402			—		228,350

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Credit Quality

The Company’s investment in non-covered loans by credit quality indicator is presented in the following tables. Because of the difference in accounting for acquired loans, the tables below further segregate the Company’s non-covered loans receivable between acquired loans and loans that were not acquired. Loan discounts in the tables below represent the adjustment of non-covered acquired loans to fair value at the acquisition date, 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 June 30, 2013 and December 31, 2012.

	Non-covered loans excluding acquired loans
	June 30, 2013												December 31, 2012
(Dollars in thousands)	Pass		Special Mention		Substandard		Doubtful		Discount		Total		Pass		Special Mention		Substandard		Doubtful		Discount		Total
Commercial real estate construction	$	304,045	$	15,414	$	5,961	$	—	$	—	$	325,420	$	269,842	$	16,767	$	7,067	$	—	$	—	$	293,676
Commercial real estate - other		2,442,277		31,860		29,643		121		—		2,503,901		2,162,989		40,547		47,710		398		—		2,251,644
Commercial business		2,494,656		18,552		44,600		1,058		—		2,558,866		2,295,788		21,640		49,958		48		—		2,367,434
Total	$	5,240,978	$	65,826	$	80,204	$	1,179	$	—		5,388,187	$	4,728,619	$	78,954	$	104,735	$	446	$	—	$	4,912,754

	Non-covered loans excluding acquired loans
	June 30, 2013								December 31, 2012
	Current		30+ Days Past Due		Premium (discount)		Total		Current		30+ Days Past Due		Premium (discount)		Total
Mortgage - Prime	$	207,986	$	9,852	$	—	$	217,838	$	185,843	$	10,986	$	—	$	196,829
Mortgage - subprime		108,009		—		—		108,009		60,454		—		—		60,454
Home equity		1,050,562		8,813		—		1,059,375		991,766		8,872		—		1,000,638
Indirect automobile		346,049		2,430		—		348,479		320,148		2,818		—		322,966
Credit card		51,663		580		—		52,243		51,117		605		—		51,722
Consumer - other		248,977		1,425		—		250,402		201,161		981		—		202,142
	$	2,013,246	$	23,100	$	—	$	2,036,346	$	1,810,489	$	24,262	$	—	$	1,834,751

	Non-covered acquired loans
	June 30, 2013													December 31, 2012
(Dollars in thousands)	Pass		Special Mention		Substandard		Doubtful		Discount			Total		Pass		Special Mention		Substandard		Doubtful		Discount			Total
Commercial real estate construction	$	18,418	$	1,522	$	4,769	$	—	$	(5,087	)	$	19,622	$	25,896	$	2,410	$	5,228	$	—	$	(3,968	)	$	29,566
Commercial real estate - other		333,965		27,220		67,523		214		(53,787	)		375,135		359,046		28,185		85,420		218		(57,055	)		415,814
Commercial business		59,016		3,520		3,499		883		(6,821	)		60,097		86,201		2,159		4,808		2,209		(12,144	)		83,233
Total	$	411,399	$	32,262	$	75,791	$	1,097	$	(65,695	)	$	454,854	$	471,143	$	32,754	$	95,456	$	2,427	$	(73,167	)	$	528,613

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	Non-covered acquired loans
	June 30, 2013									December 31, 2012
	Current		30+ Days Past Due		Premium (discount)			Total		Current		30+ Days Past Due		Premium (discount)			Total
Mortgage - Prime	$	25,217	$	779	$	(1,001	)	$	24,995	$	30,663	$	779	$	1,315		$	32,757
Home equity		62,388		6,186		(6,975	)		61,599		73,658		7,115		(4,498	)		76,275
Indirect automobile		2,962		190		—			3,152		4,698		321		—			5,019
Consumer - other		15,571		1,359		(1,241	)		15,689		21,746		714		(6,805	)		15,655
	$	106,138	$	8,514	$	(9,217	)	$	105,435	$	130,765	$	8,929	$	(9,988	)	$	129,706

Credit quality information in the table above includes loans acquired at the gross loan balance, prior to the application of discounts, at June 30, 2013 and December 31, 2012.

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

	Covered loans
	June 30, 2013											December 31, 2012
(Dollars in thousands)	Pass		Special Mention		Substandard		Doubtful		Total			Pass		Special Mention		Substandard		Doubtful		Total
Commercial real estate construction	$	45,869	$	8,478	$	50,684	$	497	$	105,528		$	46,201	$	9,888	$	97,315	$	607	$	154,011
Commercial real estate - other		171,347		62,229		221,688		7,631		462,895			201,261		65,498		279,171		8,530		554,460
Commercial business		32,737		2,245		37,872		938		73,792			38,552		8,600		50,018		451		97,621
Total	$	249,953	$	72,952	$	310,244	$	9,066	$	642,215		$	286,014	$	83,986	$	426,504	$	9,588	$	806,092
Discount										(53,098	)										(78,198	)
									$	589,117										$	727,894

	Covered loans
	June 30, 2013									December 31, 2012
	Current		30+ Days Past Due		Premium (discount)			Total		Current		30+ Days Past Due		Premium (discount)			Total
Mortgage - Prime	$	169,722	$	39,858	$	(41,926	)	$	167,654	$	183,795	$	52,379	$	(49,010	)	$	187,164
Home equity		158,896		48,580		(49,627	)		157,849		168,729		65,997		(60,514	)		174,212
Credit card		744		39		—			783		841		65		—			906
Consumer - other		941		1,465		406			2,812		1,154		1,523		(97	)		2,580
	$	330,303	$	89,942	$	(91,147	)	$	329,098	$	354,519	$	119,964	$	(109,621	)	$	364,862

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Impaired Loans

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

	June 30, 2013							December 31, 2012
(Dollars in thousands)	Recorded Investment		Unpaid Principal Balance		Related Allowance			Recorded Investment		Unpaid Principal Balance		Related Allowance
With no related allowance recorded:
Commercial real estate	$	16,077	$	16,077	$	—		$	26,151	$	26,151	$	—
Commercial business		13,823		13,823		—			1,824		1,824		—
With an allowance recorded:
Commercial real estate		141		193		(52	)		3,464		3,663		(199	)
Commercial business		309		446		(137	)		1,334		1,810		(476	)
Residential prime		8,059		8,236		(177	)		9,861		10,070		(209	)
Home equity		7,013		7,057		(44	)		5,860		5,951		(91	)
Indirect automobile		1,006		1,012		(6	)		865		868		(3	)
Credit card		416		424		(8	)		413		424		(11	)
Other		345		350		(5	)		307		310		(3	)
	$	47,189	$	47,618	$	(429	)	$	50,079	$	51,071	$	(992	)
Total commercial loans		30,350		30,539		(189	)		32,773		33,448		(675	)
Total mortgage loans		8,059		8,236		(177	)		9,861		10,070		(209	)
Total consumer loans		8,780		8,843		(63	)		7,445		7,553		(108	)

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	For the Three Months Ended June 30								For the Six Months Ended June 30
	2013				2012				2013				2012
(Dollars in thousands)	Average Recorded Investment		Interest Income Recognized (1)		Average Recorded Investment		Interest Income Recognized (1)		Average Recorded Investment		Interest Income Recognized (1)		Average Recorded Investment		Interest Income Recognized (1)
With no related allowance recorded:
Commercial real estate	$	21,452	$	24	$	30,999	$	20	$	22,871	$	63	$	31,888	$	58
Commercial business		10,942		17		2,693		—		6,891		73		3,951		2
With an allowance recorded:
Commercial real estate		194		—		3,275		5		306		1		3,634		15
Commercial business		447		3		242		—		449		8		244		1
Residential prime		8,613		—		6,458		—		8,913		13		6,535		16
Home equity		7,356		—		7,094		—		7,541		7		7,315		11
Indirect automobile		1,228		—		1,026		—		1,386		6		1,134		3
Credit card		448		—		374		—		427		—		399		—
Other		527		—		661		—		597		1		731		2
	$	51,207	$	44	$	52,822	$	25	$	49,381	$	172	$	55,831	$	108
Total commercial loans		33,035		44		37,209		25		30,517		145		39,717		76
Total mortgage loans		8,613		—		6,458		—		8,913		13		6,535		16
Total consumer loans		9,559		—		9,155		—		9,951		14		9,579		16

(1) Interest income recognized on impaired loans represents income recognized before loans were placed on nonaccrual status.

As of June 30, 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 – LOSS SHARE AGREEMENTS AND FDIC LOSS SHARE RECEIVABLE

Loss Sharing Agreements

In 2009, the Company acquired substantially all of the assets and liabilities of CSB, and certain assets and assumed certain deposit and other liabilities of Orion and Century. In 2010, the Company acquired certain assets and assumed certain deposit and other liabilities of Sterling. Excluding consumer loans acquired from Sterling, 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.

During the reimbursable loss periods, the FDIC will cover 80% of covered loan and foreclosed real estate losses up to certain thresholds for all four acquisitions, and 95% of losses that exceed contractual thresholds for CSB, Orion, and Century. The CapitalSouth reimbursable loss period ends during the third quarter of 2014 for all loans excluding single family residential loans and during the third quarter of 2019 for single family residential loans. The Century and Orion reimbursable loss periods end during the fourth quarter of 2014 for all loans excluding single family residential loans and during the fourth quarter of 2019 for single family residential loans. The Sterling reimbursable loss period ends during the third quarter of 2015 for all loans excluding single family residential loans and during the third quarter of 2020 for single family residential loans.

In addition, all loans excluding single family residential loans have a three year recovery period, which begins upon expiration of the reimbursable loss period. During the recovery periods, the Company must reimburse the FDIC for its share of any recovered losses, consistent with the covered loss reimbursement rates in effect during the reimbursable loss periods.

The Orion, Century, and Sterling loss share agreements include “clawback” provisions. The clawback provisions require the Company to make payments to the FDIC to the extent that specified cumulative loss floors are not incurred. Of the three loss share agreements that

33

contain clawback provisions, cumulative losses under two of these agreements have exceeded the cumulative loss floors that would trigger a clawback payment. The loss floor has not yet been attained for the third agreement. However, the Company believes any clawback payments ultimately due under this agreement will be insignificant to the Company’s financial position, liquidity, and results of operations. Improvement in the performance of covered assets in excess of current expectations, particularly in regard to improvements in recoveries and/or reduced losses, through expiration of the recovery periods could result in reduced levels of cumulative losses that trigger the clawback provisions within any or all of the loss share agreements.

FDIC loss share receivable

The Company recorded indemnification assets in the form of FDIC loss share receivables as of the acquisition date of each of the four banks covered by loss share agreements. At acquisition, the indemnification assets represented the fair value of the expected cash flows to be received from the FDIC under the loss share agreements. Subsequent to acquisition, the FDIC loss share receivables are updated to reflect changes in actual and expected amounts collectible adjusted for amortization. Note 1 to these unaudited consolidated financial statements provides additional information regarding the Company’s FDIC loss share receivable accounting policy and basis of presentation.

The following is a summary of FDIC loss share receivable year-to-date activity:

	Six Months Ended June 30
(Dollars in thousands)	2013			2012
Balance at beginning of period	$	423,069		$	591,844
Change due to (reversal of) credit loss provision recorded on FDIC covered loans		(55,085	)		10,633
Amortization		(45,831	)		(56,411	)
Submission of reimburseable losses to the FDIC		(42,043	)		(72,527	)
Impairment		(31,813	)		—
Changes due to a change in cash flow assumptions on OREO and other		(7,257	)		(3,616	)
Balance at end of period	$	241,040		$	469,923

FDIC loss share receivables collectability assessment

The Company assesses the FDIC loss share receivables for collectability on a quarterly basis. Note 1 provides a description of the Company’s policy for assessing the FDIC loss share receivables for collectability. Based on the collectability analysis completed for the three months ended June 30, 2013, the Company concluded that the $241,040,000 FDIC loss share receivable is fully collectible as of June 30, 2013. See below for discussion of the impairment charge recognized for the three-month period ended March 31, 2013.

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, during the loss share receivable collectability assessment completed for the three-months ended March 31, 2013, the Company concluded that certain expected losses were probable of not being collected from either the FDIC or the customer because such projected losses were no longer expected to occur or were expected to occur beyond the reimbursable loss periods specified within 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 during 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 FDIC loss share receivables, be recognized in the interim period in which they occur. Recognition of the tax effect of the impairment during the three-month period ended March 31, 2013 resulted in an effective tax rate for that period, and subsequent year-to-date periods in 2013, that are not customary of the Company’s effective tax rate without recognition of this infrequent item.

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NOTE 9 – TRANSFERS AND SERVICING OF FINANCIAL ASSETS (INCLUDING MORTGAGE BANKING ACTIVITY)

Mortgage Banking Activity

IBERIABANK 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 six months ended June 30:

(Dollars in thousands)	2013			2012
Mortgage loans held for sale
Balance at beginning of period	$	267,475		$	153,013
Originations		1,207,676			1,042,020
Sales		(1,313,120	)		(1,014,464	)
Balance at end of period	$	162,031		$	180,569

(Dollars in thousands)	2013			2012
Detail of mortgage income
Fair value changes of derivatives and mortgage loans held for sale, net	$	(1,431	)	$	1,717
Gains on sales		37,790			29,980
Servicing and other income, net		280			206
	$	36,639		$	31,903

For the six months ended June 30, 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 as follows:

	June 30, 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	$	1,749	$	(458	)	$	1,291	$	1,234	$	(304	)	$	930

NOTE 10 – GOODWILL AND OTHER ACQUIRED INTANGIBLE ASSETS

Goodwill

Changes to the carrying amount of goodwill for the year ended December 31, 2012 and the six months ended June 30, 2013 are provided in the following table.

(Dollars in thousands)
Balance, December 31, 2011	$	369,811
Goodwill acquired during the year		32,420
Goodwill adjustment to correct an immaterial error		(359	)
Balance, December 31, 2012		401,872
Goodwill acquired during the period		—
Balance, June 30, 2013	$	401,872

The goodwill acquired during the year ended December 31, 2012 was a result of the Florida Gulf acquisition.

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The goodwill adjustment in 2012 was 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 goodwill impairment test 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 subsequent to the impairment test that would indicate that goodwill may 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 held title plant assets totaling $6,722,000 at June 30, 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 for the periods indicated:

	June 30, 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	$	(28,534	)	$	16,872	$	45,406	$	(26,284	)	$	19,122
Customer relationship intangible asset		1,348		(524	)		824		1,348		(410	)		938
	$	46,754	$	(29,058	)	$	17,696	$	46,754	$	(26,694	)	$	20,060

NOTE 11 – OTHER REAL ESTATE OWNED

Other real estate owned, segregated into non-covered and covered properties, consists of the following for the periods indicated:

	June 30, 2013						December 31, 2012
(Dollars in thousands)	Non-covered		Covered		Total		Non-covered		Covered		Total
Real estate owned acquired by foreclosure	$	33,524	$	86,002	$	119,526	$	35,080	$	75,784	$	110,864
Real estate acquired for development or resale		8,434		—		8,434		9,199		—		9,199
Other foreclosed property		100		1,547		1,647		14		1,459		1,473
	$	42,058	$	87,549	$	129,607	$	44,293	$	77,243	$	121,536

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NOTE 12 – DERIVATIVE INSTRUMENTS AND OTHER HEDGING ACTIVITIES

Information pertaining to outstanding derivative instruments is as follows:

	Balance Sheet	Asset Derivatives Fair Value				Balance Sheet	Liability Derivatives Fair Value
(Dollars in thousands)	Location	June 30, 2013		December 31, 2012		Location	June 30, 2013		December 31, 2012
Derivatives designated as hedging instruments under ASC Topic 815:
Interest rate contracts	Other assets	$	—	$	499	Other liabilities	$	—	$	1,843
Total derivatives designated as hedging instruments under ASC Topic 815		$	—	$	499		$	—	$	1,843
Derivatives not designated as hedging instruments under ASC Topic 815:
Interest rate contracts	Other assets	$	13,917	$	25,940	Other liabilities	$	13,917	$	25,940
Forward sales contracts	Other assets		7,274		2,774	Other liabilities		330		343
Written and purchased options	Other assets		13,826		12,906	Other liabilities		12,078		8,764
Total derivatives not designated as hedging instruments under ASC Topic 815		$	35,017	$	41,620		$	26,325	$	35,047
Total derivatives		$	35,017	$	42,119		$	26,325	$	36,890

	Asset Derivatives Notional Amount				Liability Derivatives Notional Amount
(Dollars in thousands)	June 30, 2013		December 31, 2012		June 30, 2013		December 31, 2012
Derivatives designated as hedging instruments under ASC Topic 815:
Interest rate contracts	$	—	$	35,000	$	—	$	35,000
Total derivatives designated as hedging instruments under ASC Topic 815	$	—	$	35,000	$	—	$	35,000
Derivatives not designated as hedging instruments under ASC Topic 815:
Interest rate contracts	$	380,211	$	374,536	$	380,211	$	374,536
Forward sales contracts		226,136		212,028		38,935		53,269
Written and purchased options		342,242		388,793		272,728		185,885
Total derivatives not designated as hedging instruments under ASC Topic 815	$	948,589	$	975,357	$	691,874	$	613,690
Total derivatives	$	948,589	$	1,010,357	$	691,874	$	648,690

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, the counterparty would be entitled to the collateral.

37

At June 30, 2013 and December 31, 2012, the Company was required to post $2,850,000 and $2,650,000 respectively 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 June 30, 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 reconciles the gross amounts presented in the consolidated balance sheets to the net amounts that would result in the event of offset.

	June 30, 2013
(Dollars in thousands)	Gross Amounts		Gross Amounts Not Offset
	Presented in the		in the Balance Sheet
	Balance Sheet		Derivatives		Collateral (1)			Net
Derivatives subject to master netting arrangements
Derivative assets
Interest rate contracts designated as hedging instruments	$	—	$	—	$	—		$	—
Interest rate contracts not designated as hedging instruments		13,917		—		—			13,917
Written and purchased options		10,870		—		—			10,870
Total derivative assets subject to master netting arrangements	$	24,787	$	—	$	—		$	24,787
Derivative liabilities
Interest rate contracts designated as hedging instruments	$	—	$	—	$	—		$	—
Interest rate contracts not designated as hedging instruments		13,917		—		(5,965	)		7,952
Total derivative liabilities subject to master netting arrangements	$	13,917	$	—	$	(5,965	)	$	7,952

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

	December 31, 2012
(Dollars in thousands)	Gross Amounts		Gross Amounts Not Offset
	Presented in the		in the Balance Sheet
	Balance Sheet		Derivatives			Collateral (1)			Net
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 six months ended June 30, 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 June 30, 2013, the fair value of derivatives that will mature within the next twelve months is $231,000. 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

Information pertaining to the effect of the hedging instruments on the consolidated financial statements is as follows.

	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)
	As of June 30					For the Three Months Ended June 30
(Dollars in thousands)	2013		2012				2013		2012				2013		2012
Derivatives in ASC Topic 815 Cash Flow Hedging Relationships
Interest rate contracts	$	—	$	(3,144	)	Other income (expense)	$	32	$	(400	)	Other income (expense)	$	—	$	—
	$	—	$	(3,144	)		$	32	$	(400	)		$	—	$	—

	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)
	As of June 30					For the Six Months Ended June 30
(Dollars in thousands)	2013		2012				2013			2012				2013		2012
Derivatives in ASC Topic 815 Cash Flow Hedging Relationships
Interest rate contracts	$	—	$	(3,144	)	Other income (expense)	$	(392	)	$	(787	)	Other income (expense)	$	—	$	—
	$	—	$	(3,144	)		$	(392	)	$	(787	)		$	—	$	—

	Location of Gain (Loss) Recognized in Income on Derivatives	Amount of Gain (Loss) Recognized in Income on Derivatives
		For the Three Months Ended June 30					For the Six Months Ended June 30
(Dollars in thousands)		2013			2012		2013			2012
Derivatives Not Designated as Hedging Instruments under ASC Topic 815
Interest rate contracts	Other income (expense)	$	1			—		—			—
Forward sales contracts	Mortgage Income		8,320			—		5,408			—
Written and purchased options	Mortgage Income		(4,815	)		1,660		(3,730	)		1,716
		$	3,506		$	1,660	$	1,678		$	1,716

39

NOTE 13 – OTHER COMPREHENSIVE INCOME

The following is a summary of the tax effects of each component of other comprehensive income for the periods indicated:

	Three Months Ended June 30, 2013
(Dollars in thousands)	Before     Tax			Tax Expense     (Benefit)			Net-of-Tax     Amount
Unrealized gain on securities:
Unrealized holding losses arising during the period	$	(42,303	)	$	14,806		$	(27,497	)
Less: reclassification adjustment for losses included in net income		66			(23	)		43
Net unrealized losses		(42,237	)		14,783			(27,454	)
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	$	(1,121	)	$	392		$	(729	)
Less: reclassification adjustment for gains included in net income		(33	)		12			(21	)
Fair value of derivative instruments designated as cash flow hedges		(1,154	)		404			(750	)
Total other comprehensive income (loss)	$	(43,391	)	$	15,187		$	(28,204	)

	Three Months Ended June 30, 2012
(Dollars in thousands)	Before     Tax			Tax Expense     (Benefit)			Net-of-Tax     Amount
Unrealized gain on securities:
Unrealized holding gains arising during the period	$	3,195		$	(1,118	)	$	2,077
Less: reclassification adjustment for gains included in net income		(901	)		315			(586	)
Net unrealized gains		2,294			(803	)		1,491
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	$	(7,634	)	$	2,672		$	(4,962	)
Less: reclassification adjustment for losses included in net income		400			(140	)		260
Fair value of derivative instruments designated as cash flow hedges		(7,234	)		2,532			(4,702	)
Total other comprehensive income (loss)	$	(4,940	)	$	1,729		$	(3,211	)

40

	Six Months Ended June 30, 2013
(Dollars in thousands)	Before     Tax			Tax Expense     (Benefit)			Net-of-Tax     Amount
Unrealized gain on securities:
Unrealized holding losses arising during the period	$	(44,297	)	$	15,504		$	(28,793	)
Less: reclassification adjustment for gains included in net income		(2,261	)		791			(1,470	)
Net unrealized losses		(46,558	)		16,295			(30,263	)
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	$	952		$	(333	)	$	619
Less: reclassification adjustment for losses included in net income		392			(137	)		255
Fair value of derivative instruments designated as cash flow hedges		1,344			(470	)		874
Total other comprehensive income (loss)	$	(45,214	)	$	15,825		$	(29,389	)

	Six Months Ended June 30, 2012
(Dollars in thousands)	Before     Tax			Tax Expense     (Benefit)			Net-of-Tax     Amount
Unrealized gain on securities:
Unrealized holding gains arising during the period	$	2,139		$	(749	)	$	1,390
Less: reclassification adjustment for gains included in net income		(3,702	)		1,296			(2,406	)
Net unrealized losses		(1,563	)		547			(1,016	)
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	$	(2,683	)	$	939		$	(1,744	)
Less: reclassification adjustment for losses included in net income		786			(275	)		511
Fair value of derivative instruments designated as cash flow hedges		(1,897	)		664			(1,233	)
Total other comprehensive income (loss)	$	(3,460	)	$	1,211		$	(2,249	)

41

NOTE 14 – 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 six months ended June 30, 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 June 30, 2013, future option or restricted stock awards of 499,152 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 June 30				For the Six Months Ended June 30
(Dollars in thousands, except per share data)	2013		2012		2013		2012
Compensation expense related to stock options	$	533	$	542	$	1,066	$	983
Income tax benefit related to stock options		187		190		374		344
Impact on basic earnings per share		0.01		0.01		0.02		0.02
Impact on diluted earnings per share		0.01		0.01		0.02		0.02

The Company reported $417,000 and $285,000 of excess tax benefits as financing cash inflows during the six months ended June 30, 2013 and 2012, respectively, related to the exercise and vesting of stock option exercises. Net cash proceeds from the exercise of stock options were $4,238,000 and $1,337,000 for the six months ended June 30, 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 six-month periods ended June 30:

	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 June 30, 2013, there was $4,999,000 of unrecognized compensation cost related to stock options which is expected to be recognized over a weighted-average period of 4.9 years.

42

The following table represents the activity related to stock options during the periods indicated.

	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		(44,278	)		29.28
Forfeited or expired		(26,164	)		58.17
Outstanding options, June 30, 2012		1,244,408		$	51.00		5.0 Years
Outstanding exercisable at June 30, 2012		788,594		$	49.19		3.2 Years
Outstanding options, December 31, 2012		1,236,075		$	51.48
Granted		75,722			52.36
Exercised		(116,324	)		36.43
Forfeited or expired		(31,270	)		55.39
Outstanding options, June 30, 2013		1,164,203		$	52.94		4.9 Years
Outstanding exercisable at June 30, 2013		774,446		$	52.73		3.4 Years

At June 30, 2013, the aggregate intrinsic value of shares underlying outstanding stock options and underlying exercisable stock options was $3,324,000 and $2,797,000. Total intrinsic value of options exercised was $1,597,000 and $1,005,000 for the six months ended June 30, 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 June 30, 2013, unearned share-based compensation associated with these awards totaled $25,379,000.

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 June 30				For the Six Months Ended June 30
(Dollars in thousands)	2013		2012		2013		2012
Compensation expense related to restricted stock	$	2,068	$	1,956	$	3,945	$	3,665

The following table represents unvested restricted stock award activity for the six months ended June 30:

	2013			2012
Balance at beginning of period		538,202			512,112
Granted		164,151			162,570
Forfeited		(26,866	)		(4,306	)
Earned and issued		(123,328	)		(107,418	)
Balance at end of period		552,159			562,958

43

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. The Company recorded $1,112,000 and $430,000, respectively, during the three months ended June 30, 2013 and 2012 and $1,811,000 and $1,181,000, respectively, during the six months ended June 30, 2013 and 2012, 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		106,351			4,347			110,698			5,585,000
Forfeited share equivalents		(4,443	)		(156	)		(4,599	)		(232,000	)
Vested share equivalents		(12,785	)		(805	)		(13,590	)		(691,000	)
Balance, June 30, 2012		322,044			12,328			334,372		$	16,869,000
Balance, December 31, 2012		318,729			16,035			334,764		$	16,444,000
Granted		163,498			5,899			169,397			9,081,000
Forfeited share equivalents		(15,121	)		(641	)		(15,762	)		(845,000	)
Vested share equivalents		(40,185	)		(2,876	)		(43,061	)		(2,156,000	)
Balance, June 30, 2013		426,921			18,417			445,338		$	23,875,000

(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 $53.61 and $50.45 on June 30, 2013 and 2012, respectively.

44

NOTE 15 – COMMITMENTS AND CONTINGENCIES

Off-balance sheet commitments

The Company is 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 credit policies used for these commitments are consistent with those used for on-balance sheet instruments. The Company’s exposure to credit loss in the event of nonperformance by another party represents the contractual amount of the financial instruments. At June 30, 2013, the fair value of guarantees under commercial and standby letters of credit was $948,000. This amount represents the unamortized fee associated with these guarantees and is included in the consolidated balance sheets of the Company. This fair value will decrease as the existing commercial and standby letters of credit approach their expiration dates.

The Company had the following financial instruments outstanding, whose contract amounts represent credit risk:

(Dollars in thousands)	June 30 2013		December 31 2012
Commitments to grant loans	$	357,220	$	192,295
Unfunded commitments under lines of credit		2,693,642		2,372,971
Commercial and standby letters of credit		94,797		62,207
Reserve for unfunded lending commitments		10,342		—

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 any, 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. See Note 7 for additional discussion related to the Company’s unfunded lending commitments.

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 litigations 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 $0.5 million and $2.1 million.

45

NOTE 16 – 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.

	June 30, 2013
			Fair Value Measurements Using
(Dollars in thousands)	Total		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	$	1,912,058	$	—	$	1,912,058	$	—
Derivative instruments		35,017		—		35,017		—
Total	$	1,947,075	$	—	$	1,947,075	$	—
Liabilities
Derivative instruments		26,325		—		26,325		—
Total	$	26,325	$	—	$	26,325	$	—

	December 31, 2012
			Fair Value Measurements Using
(Dollars in thousands)	Total		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	$	—

46

Gains and losses (realized and unrealized) included in earnings (or changes in net assets) for the first six 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)	$	3,548	$	—
Change in unrealized gains (losses) relating to assets still held at June 30, 2013		—		(28,204	)

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.

	June 30, 2013
			Fair Value Measurements Using
(Dollars in thousands)	Total		Quoted Prices in Active Markets for     Identical Assets     (Level 1)		Significant Other     Observable     Inputs (Level 2)		Significant     Unobservable     Inputs (Level 3)
Assets
Loans	$	1,465	$	—	$	1,465	$	—
Mortgage loans held for sale		118,848		—		118,848		—
Property and equipment		6,721		—		6,721		—
OREO		24,852		—		24,852		—
Total	$	151,886	$	—	$	151,886	$	—

	December 31, 2012
			Fair Value Measurements Using
(Dollars in thousands)	Total		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 $1,791,000 were recorded at their fair value at June 30, 2013. These loans include a reserve of $326,000 included in the Company’s allowance for credit losses at June 30, 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.

47

During the second quarter of 2013, the Company announced plans to close ten branches during the second and third quarters of 2013 as part of its business strategy. The Company has notified customers of these branches and has received the required regulatory approvals to proceed with closure. The Company reviewed the carrying amount of the owned properties and concluded it exceeded the fair value of these branches at that date. As a result, the Company recorded an impairment loss in other noninterest expense of $4,618,000 in its consolidated statement of comprehensive income for the six months ended June 30, 2013. After the impairment loss, the carrying value of the branches was $6,721,000 and is included in premises and equipment on the Company’s consolidated balance sheet at June 30, 2013. When these branches close, they will be included in other real estate owned (as real estate acquired for development or resale), a component of other assets on the consolidated balance sheet.

Fair value of the branches was based on a third-party broker opinion of value using both a comparable sales and cash flow approach. The Company did not modify the third-party pricing information for unobservable inputs.

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 six months ended June 30, 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 six months ended June 30, 2013 and 2012.

NOTE 17 – 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 June 30, 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 June 30, 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 June 30, 2013 and December 31, 2012 for deposits with similar remaining maturities. The fair value of the Company’s deposits would therefore be categorized within Level 3 of the fair value hierarchy.

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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 June 30, 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:

	June 30, 2013				December 31, 2012
(Dollars in thousands)	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Financial Assets
Cash and cash equivalents	$	347,565	$	347,565	$	970,977	$	970,977
Investment securities		2,075,298		2,075,410		1,950,066		1,956,502
Loans and loans held for sale		9,065,068		9,142,472		8,766,055		8,800,563
FDIC loss share receivable		241,040		83,235		423,069		207,222
Derivative instruments		35,017		35,017		42,119		42,119
Accrued interest receivable		33,152		33,152		32,183		32,183
Financial Liabilities
Deposits	$	10,641,718	$	10,244,170	$	10,748,277	$	10,594,885
Short-term borrowings		289,377		289,377		303,045		303,045
Long-term debt		283,485		246,367		423,377		394,490
Derivative instruments		26,325		26,325		36,890		36,890
Accrued interest payable		6,057		6,057		6,615		6,615

The fair value estimates presented herein are based upon pertinent information available to management as of June 30, 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 18 – SUBSEQUENT EVENTS

On July 2, 2013, the Board of Governors of the Federal Reserve System approved the final Basel III capital rules. Effective January 1, 2015, the Company will be required to have a minimum common equity Tier 1 capital ratio of 4.5%, net of any deductions from regulatory capital. The rules permit the Company to include in Tier 1 Capital on a permanent basis, without any phase-out, trust preferred securities and cumulative perpetual preferred stock issued and included in Tier 1 capital prior to May 19, 2010. Effective January 1, 2016, the rules also require an initial capital conservation buffer (composed entirely of common equity Tier 1 capital) of 0.625%, in addition to the minimum common equity Tier 1 capital, with required equal annual increases to achieve a 2.5% minimum by January 1, 2019. Therefore, effective January 1, 2019, the Company is required to have a minimum common equity Tier 1 ratio plus capital conservation buffer of 7%. In addition, effective January 1, 2015, the rules increase the minimum Tier 1 Capital requirement from 4% to 6% of risk-weighted assets and establish an 8% minimum Total Capital ratio. The Company is currently assessing the impact of these rules on its operating results and financial condition.

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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 June 30, 2013 and updates the Form 10-K for the year ended December 31, 2012. This discussion should be read in conjunction with the unaudited consolidated financial statements, accompanying footnotes and supplemental financial data included herein. The emphasis of this discussion will be amounts as of June 30, 2013 compared to December 31, 2012 for the balance sheets and the three and six months ended June 30, 2013 compared to June 30, 2012 for the statements of comprehensive income.

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 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.

Actual results could differ materially because of factors such as the level of market volatility, our ability to execute our growth strategy, including the availability of future FDIC-assisted failed bank opportunities, unanticipated losses related to the integration of, and refinements to purchase accounting adjustments for, acquired businesses and assets and assumed liabilities in these transactions, adjustments of fair values of acquired assets and assumed liabilities and of deferred taxes in acquisitions, actual results deviating from the Company’s current estimates and assumptions of timing and amounts of cash flows, credit risk of our customers, effects of the on-going correction in residential real estate prices and reduced levels of home sales, our ability to satisfy new capital and liquidity standards such as those imposed by the Dodd-Frank Act and those adopted by the Basel Committee and federal banking regulators, sufficiency of our allowance for loan losses, changes in interest rates, access to funding sources, reliance on the services of executive management, competition for loans, deposits and investment dollars, reputational risk and social factors, changes in government regulations and legislation, increases in FDIC insurance assessments, geographic concentration of our markets and economic conditions in these markets, rapid changes in the financial services industry, dependence on our operational, technological, and organizational systems or infrastructure and those of third-party providers of those services, hurricanes and other adverse weather events, the modest trading volume of our common stock, and valuation of intangible assets.

Those and other 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 the consolidated financial statements. “Acquired loans” refer to all loans acquired in a business combination. Because of the loss protection provided by the Federal Deposit Insurance Corporation (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, excluding consumer loans acquired from Sterling, are significantly different from those assets not similarly covered by loss share agreements. Accordingly, the Company reports loans subject to the loss share agreements as “covered loans” and loans that are not subject to the loss share agreements 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 six 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. During the first six months of 2013, operating results were significantly impacted by three 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- and six-month periods ended June 30, 2013 by $5.0 million and $10.4 million, respectively, compared to the methodology in place prior to adoption of ASU 2012-06.

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Secondly, the Company concluded that certain previously expected losses are probable of not being collected from the FDIC. Based on improving economic trends, their impact on the amount and timing of expected future cash flows, and delays in the foreclosure process, these 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 to earnings.

In addition, as part of its ongoing business strategy that includes a periodic review of its branch network to maximize shareholder return, the Company closed five branches thus far during 2013, four during the first quarter of 2013 and one during the second quarter of 2013. During the second quarter of 2013, the Company announced plans to close or consolidate ten additional branches during the third quarter of 2013. As part of these branch closures, the Company incurred various disposal costs during the three and six months ended June 30, 2013, including personnel termination costs, contract termination costs, and fixed asset disposals. Total expenses for these closures were $5.2 million and $5.7 million for the quarter- and year-to-date periods, respectively.

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 June 30, 2013 these investments contributed to net interest income growth of $3.3 million to $96.5 million and noninterest income growth of $0.8 million to $42.5 million. For the six-month period, net interest income grew $4.3 million while non-interest income grew $7.9 million. Non-covered loans grew by $579.0 million, or 7.8% during the first six months of 2013 to $8.0 billion at June 30, 2013, while covered loans decreased by $174.5 million. The mix of deposits continued a shift to noninterest-bearing, which represented 19.3% of total deposits as of June 30, 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 $347.6 million at June 30, 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 14.8% increase in mortgage income over the six-month period ended June 30, 2012. Title income was $0.8 million, or 8.6%, higher than in the first six months 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 20.0% over the same period of 2012.

During the first six months of 2013, noninterest income increased $7.9 million to $87.0 million, a 10.0% 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 $117.4 million for the three months ended June 30, 2013, an increase of $8.3 million versus the same three-month period of 2012. The $5.2 million in branch closure costs noted above accounted for the majority of the increase in the quarter-to-date period. Noninterest expenses for the six months ended June 30, 2013 were $262.3 million, $53.4 million higher than the first two quarters of 2012. In addition to the branch closure costs, 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 $110.2 million for the same period, which represented an increase of $7.1 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 second quarter of 2012, 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 $0.5 million.

The provision for credit losses decreased $7.1 million in the quarter-to-date period and $13.3 million for the six-month periods ended June 30, 2013 compared to their corresponding 2012 period, due primarily to an improvement in asset quality in the legacy portfolio over the past 12 months, but also included a reversal of provision to account for expected losses in the acquired loan portfolios.

All of these factors led net income available to common shareholders for the three months ended June 30, 2013 to increase $3.0 million from the second quarter of 2012 to $0.53 per diluted share. For the first six months of 2013, income available to common shareholders decreased $0.53 per diluted share. Operating earnings (non-GAAP) for the second quarter of 2013 increased $4.5 million to $20.3 million, or $0.69 on a per share basis, up $0.15 per diluted share from the same period of 2012.

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Balance Sheet Position and Results of Operations

The Company’s net income available to common shareholders for the second quarter of 2013 totaled $15.3 million, or $0.53 per diluted share, compared to $12.3 million, or $0.43 per diluted share for the second quarter of 2012. On an operating basis (non-GAAP), per share earnings increased $0.15 per share to $0.69. Primary drivers of the increase in operating earnings over the prior year include the earnings from the net assets acquired from Florida Gulf and organic earning asset growth and a decrease in nonrecurring noninterest expenses. Key components of the Company’s performance through the second quarter of 2013 are summarized below.

• Total assets at June 30, 2013 were $12.8 billion, down $306.2 million, or 2.3%, from December 31, 2012. The decrease was primarily the result of decreases in cash held (which was used primarily to fund earning asset growth), 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 $182.0 million, or 43.0%, since December 31, 2012, and covered loans decreased $174.5 million since 2012. Offsetting these decreases was $579.0 million in loan growth in the Company’s non-covered loan portfolio across many of the Company’s markets.

• Total loans at June 30, 2013 were $8.9 billion, an increase of $404.5 million, or 4.8%, from $8.5 billion at December 31, 2012. As noted above, loan growth during the first six months of 2013 was driven by a 7.8% increase in non-covered loans. Covered loans decreased 16.0% 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 $106.6 million, or 1%, to $10.6 billion at June 30, 2013. Deposits decreased as a result of a decrease in seasonal deposits from December 31, 2012. Noninterest-bearing deposits increased $87.7 million, or 4.5%, but that growth was offset by a decrease of $194.2 million in interest-bearing deposits. The decrease in the Company’s interest-bearing deposits was a result of a $186.4 million, or 8.7%, 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 decreased $7.4 million, or less than 1%. Although deposit competition remained intense, 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, and Houston, Texas markets.

• Shareholders’ equity decreased $25.1 million, or 1.6% from year-end 2012. The decrease was driven by a $29.4 million decrease in other comprehensive income, a result of the change in the unrealized gain in the Company’s available for sale investment portfolio from December 31, 2012. The decrease was a result of interest rate changes at the end of the second quarter of 2013.

• Net interest income increased $3.3 million, or 3.6%, in the second quarter of 2013 when compared to the same period of 2012. This increase was attributable to a $4.4 million, or 27.4%, decrease in interest expense, but was offset partially by a $1.1 million decrease in interest income. Interest income was positively affected by a $1.0 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 31, 2012. The increase in income due to growth in the Company’s earning asset base was offset by a 40 basis point decline in the yield earned on these assets, primarily the result of a 45 basis point decrease in net loan yield. The net loan yield was negatively impacted by a 123 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 3.39% 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 totaled $42.5 million for the second quarter of 2013, a slight increase of 1.9% when compared to the same 2012 period. The increase was primarily driven by a $0.8 million increase in broker commissions. Increases of $0.5 million in service charges and a $0.4 million increase in title income also contributed to the total increase from 2012. These increases were offset by a decrease of $0.5 million in mortgage income as a result of a change in the valuation of mortgage-related derivatives.

• Noninterest expense increased $8.3 million, or 7.6%, when compared to the second quarter of 2012. The increase in total noninterest expense was attributable primarily to higher salary and employee benefit costs of $5.7 million, increased occupancy, equipment, and other branch expenses resulting from the Company’s expanded footprint, but was also a result of the $4.6 million impairment recorded in the second quarter. Noninterest expenses were also driven higher in 2013 by data processing expenses as the Company expands its business operations. These increases were offset by decreases in professional services expense and credit-related expenses.

• During the second quarter and first six months of 2013, the Company incurred costs associated with previously announced branch closures that affected the Company’s net income and per-share earnings for the three-month and six-month periods. 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, $5.2 million and $5.6 million for the three and six months ended June 30, 2013, respectively affected total noninterest expense and is discussed in further detail in the “Noninterest expense” section below. On a per-share basis, the branch closure costs, which include fixed asset write-downs, accelerated depreciation, and severance expenses, affected diluted earnings per share for both the three- month and six-month periods ended June 30, 2013 by $0.12.

• The Company recorded a provision for loan losses of $1.8 million during the second quarter of 2013, $7.1 million lower than the $8.9 million provision recorded in the second quarter of 2012. The provision in 2013 was impacted by loan growth during the period, but was tempered by an overall improvement in the Company’s asset quality, especially in its non-covered, non-acquired

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portfolio. The improvement in asset quality from December 31, 2012 has offset the need for a higher allowance for loan losses as a result of loan growth in 2013. As of June 30, 2013, the allowance for loan losses as a percent of total loans was 1.83%, compared to 2.96% at December 31, 2012.

• The Company paid a quarterly cash dividend of $0.34 per common share in the second quarter of 2013, and $0.68 for the year-to-date period. These amounts were consistent with the dividends paid for the same periods 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

	Three Months Ended June 30
	2013									2012
(Dollars in thousands, except per share amounts)	Pre-tax			After-tax			Per share  (1)			Pre-tax			After-tax			Per share  (1)
Net income (GAAP)	$	19,803		$	15,590		$	0.53		$	16,949		$	12,560		$	0.43
Merger-related expenses		—			—			—			456			296			0.01
Severance expenses		1,670			1,086			0.04			1,053			685			0.02
Occupancy expenses and branch closure expenses		4,925			3,201			0.11			2,743			1,783			0.06
Termination of debit card rewards program		450			293			0.01			—			—			—
Professional expenses and litigation settlement		150			97			0.00			1,661			1,080			0.04
(Gain) loss on sale of investments		57			37			0.00			(901	)		(586	)		(0.02	)
Operating earnings (non-GAAP)		27,055			20,304			0.69			21,961			15,818			0.54
Covered and acquired impaired (reversal of) provision for loan losses		(1,537	)		(999	)		(0.03	)		4,624			3,006			0.10
Other (reversal of) provision for loan losses		3,344			2,174			0.07			4,271			2,776			0.09
Pre-provision operating earnings (non-GAAP)	$	28,862		$	21,479		$	0.73		$	30,856		$	21,600		$	0.73

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

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	As of and for the Three Months Ended June 30
(Dollars in thousands)	2013			2012
Net interest income (GAAP)	$	96,482		$	93,172
Add: Effect of tax benefit on interest income		2,396			2,421
Net interest income (TE) (Non-GAAP)	$	98,878		$	95,593
Noninterest income (GAAP)	$	42,489		$	41,694
Add: Effect of tax benefit on noninterest income		485			487
Noninterest income (TE) (Non-GAAP)	$	42,974		$	42,181
Noninterest expense (GAAP)	$	117,361		$	109,022
Less: Intangible amortization expense		1,181			1,289
Tangible noninterest expense (Non-GAAP)	$	116,180		$	107,733
Net income (GAAP)	$	15,590		$	12,560
Add: Effect of intangible amortization, net of tax		768			838
Cash earnings (Non-GAAP)	$	16,358		$	13,398
Total assets (GAAP)	$	12,823,503		$	12,121,118
Less: Intangible assets		427,581			395,919
Total intangible assets (Non-GAAP)	$	12,395,922		$	11,725,199
Average assets (Non-GAAP)	$	12,881,551		$	11,817,101
Less: Average intangible assets		428,034			396,342
Total average intangible assets (Non-GAAP)	$	12,453,517		$	11,420,759
Total shareholders’ equity (GAAP)	$	1,504,761		$	1,495,040
Less: intangible assets		427,581			395,919
Total tangible shareholders’ equity (Non-GAAP)	$	1,077,180		$	1,099,121
Average shareholders’ equity (Non-GAAP)	$	1,528,606		$	1,504,102
Less: Average intangible assets		428,034			396,342
Average tangible shareholders’ equity (Non-GAAP)	$	1,100,572		$	1,107,760
Net income per common share—diluted	$	0.53		$	0.43
Add: Effect of intangible amortization, net of tax		0.02			0.03
Cash earnings per share—diluted (Non-GAAP)	$	0.55		$	0.46
Return on average common equity		4.09	%		3.36	%
Add: Effect of intangibles		1.87			1.50
Return on average tangible common equity (Non-GAAP)		5.96	%		4.86	%
Efficiency ratio		84.5	%		80.8	%
Less: Effect of tax benefit related to tax-exempt income		1.8			1.7
Efficiency ratio (TE) (Non-GAAP)		82.7			79.1
Less: Effect of amortization of intangibles		0.8			0.9
Tangible efficiency ratio (TE) (Non-GAAP)		81.9	%		78.2	%

FINANCIAL CONDITION

EARNING ASSETS

Interest income associated with earning assets is the Company’s primary source of income. Earning assets are composed of interest-earning or dividend-earning assets, including loans, securities, short-term investments and loans held for sale. Earning assets averaged $11.6 billion during the second quarter of 2013, a $1.0 billion, or 9.5%, increase when compared to the same period of 2012. Earning assets averaged $11.7 billion during the first six months of 2013, a $1.2 billion, or 11.4%, increase when compared to the first half 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 $404.5 million, or 4.8%, to $8.9 billion at June 30, 2013, compared to $8.5 billion at December 31, 2012. The increase was driven by non-covered loan growth of $579.0 million during the first six months of 2013, but was offset by a decrease in loans covered by loss share agreements of $174.5 million, or 16.0%. By loan type, the increase was primarily from commercial loan growth of $262.9 million and consumer loan growth of $100.3 million during the first six months of 2013, 4.3% and 5.4% higher, respectively, than at the end of 2012.

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The major categories of loans outstanding at June 30, 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

	June 30, 2013
	Commercial				Mortgage				Consumer and Other
	Real Estate		Business		1-4 Family		Construction		Indirect automobile		Home Equity		Credit Card		Other		Total
Covered loans
Impaired (1)	$	132,565	$	2,005	$	17,969	$	—	$	—	$	18,791	$	—	$	713	$	172,043
Performing (1)		387,595		66,952		149,685		—		—		139,058		783		2,099		746,172
Total covered loans		520,160		68,957		167,654		—		—		157,849		783		2,812		918,215
Non-covered loans
Acquired
Impaired (1)		39,563		3,468		383		—		45		2,381		—		861		46,701
Performing (1)		355,194		56,629		24,612		—		3,107		59,218		—		14,828		513,588
		394,757		60,097		24,995		—		3,152		61,599		—		15,689		560,289
Legacy loans		2,829,321		2,558,866		321,103		4,744		348,479		1,059,375		52,243		250,402		7,424,533
Total non-covered loans		3,224,078		2,618,963		346,098		4,744		351,631		1,120,974		52,243		266,091		7,984,822
Total	$	3,744,238	$	2,687,920	$	513,752	$	4,744	$	351,631	$	1,278,823	$	53,026	$	268,903	$	8,903,037
	December 31, 2012
	Commercial				Mortgage				Consumer and Other
	Real Estate		Business		1-4 Family		Construction		Indirect automobile		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		—		—		152,118		906		1,760		879,111
Total covered loans		640,843		87,051		187,164		—		—		174,212		906		2,580		1,092,756
Non-covered loans
Acquired
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
		445,380		83,233		32,757		—		5,019		76,275		—		15,655		658,319
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.

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The Company’s loan to deposit ratio at June 30, 2013 and December 31, 2012 was 83.7% and 79.1%, respectively. The percentage of fixed rate loans to total loans increased slightly from 50.7% at the end of 2012 to 50.8% as of June 30, 2013. The table below sets forth the composition of the Company’s loan portfolio as of the dates indicated, followed by a discussion of activity by major loan type.

TABLE 3 – TOTAL LOANS BY LOAN TYPE

(Dollars in thousands)	June 30, 2013				December 31, 2012
Commercial loans:
Real estate	$	3,744,238	42	%	$	3,631,543	43	%
Business		2,687,920	30			2,537,718	30
		6,432,158	72			6,169,261	73
Mortgage loans:
Residential 1-4 family		513,752	6			471,183	5
Construction/owner-occupied		4,744	—			6,021	—
		518,496	6			477,204	5
Consumer loans:
Home equity		1,278,823	14			1,251,125	15
Indirect automobile		351,631	4			327,985	4
Other		321,929	4			273,005	3
		1,952,383	22			1,852,115	22
	$	8,903,037	100	%	$	8,498,580	100	%

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 $262.9 million, or 4.3%, during the first six months of 2013, with $401.7 million in non-covered loan growth and a decrease in covered commercial loans of $138.8 million, or 19.1%. The Company continued to attract and retain commercial customers in 2013 as commercial loans were 72% of the total loan portfolio at June 30, 2013. Unfunded commitments on commercial loans were $2.1 billion at June 30, 2013, an increase of $325.9 million when compared to the prior year.

The Company’s investment in commercial real estate loans increased by $112.7 million during the first six months of 2013, as growth was driven by an increase in non-covered commercial real estate loans of $233.4 million. At June 30, 2013, commercial real estate loans totaled $3.7 billion, or 42.1% 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 June 30, 2013, commercial business loans totaled $2.7 billion, or 30.2% of the Company’s total loan portfolio. This represents a $150.2 million, or 5.9%, 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 $401.7 million, or 7.4%, during the first six months of 2013. The 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

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$206.0 million, or 24.0%, since the end of 2012. Birmingham, Alabama’s commercial loans grew $32.1 million, or 10.2%, while the Huntsville, Alabama market contributed loan growth of $23.1 million since December 31, 2012. In the Company’s more mature markets, Baton Rouge, Louisiana’s commercial loans grew $32.2 million, or 6.2%, during the first six months of 2013. Offsetting these increases were decreases primarily due to loan payments in the Northeast Arkansas market.

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 six months of 2013 was $36.9 million, of which $15.2 million is either directly or indirectly guaranteed by a United States Government Agency. At June 30, 2013, the Company had $108.0 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. Upon the sale, the Company retains servicing on a limited portion of these loans. Total residential mortgage loans increased $41.3 million, or 8.7% compared to December 31, 2012, and was a result of the subprime loans the Company purchased from the secondary market during the first half of 2013. Offsetting these purchases were decreases in the Company’s covered mortgage loans of $19.5 million and $7.8 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 June 30, 2013, $2.0 billion, or 21.9%, of the total loan portfolio was comprised of consumer loans, compared to $1.9 billion, or 21.8%, at the end of 2012. Total consumer loans increased $100.3 million from December 31, 2012, with almost half of the growth ($48.9 million) from personal loans (including credit card loans), with the remaining growth split evenly between indirect automobile loans ($23.6 million) and home equity loans and lines of credit ($27.8 million).

Consistent with 2012, home equity loans comprised the largest component of the Company’s consumer loan portfolio at June 30, 2013. The balance of home equity loans increased $27.8 million during the first six months of 2013 to $1.3 billion at June 30, 2013. Non-covered home equity loans increased $44.1 million during the first half of 2013 as 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 also contributed to the growth in non-covered home equity loans since December 31, 2012. Unfunded commitments related to home equity loans and lines were $461.4 million at June 30, 2013, an increase of $120.2 million versus the prior year. The Company has approximately $407.3 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.

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. Indirect automobile loans increased 7.2% during the first half of 2013, from $328.0 million at December 31, 2012 to $351.6 million, or 3.9% of the total loan portfolio, as the Company retained its focus on prime or low risk paper. 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 $53.0 million at June 30, 2013, a 0.8% increase from December 31, 2012. The increase in credit card loans was a result of an increase in usage by customers at the end of the second quarter. 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 second quarter of 2013.

The remainder of the consumer loan portfolio at June 30, 2013 consisted of direct automobile loans and other personal loans, and comprised 3.0% of the overall loan portfolio. At the end of the second quarter, the Company’s direct automobile loans totaled $76.4 million, a $16.2 million increase over December 31, 2012, and the Company’s other personal consumer loans were $192.5 million, a 22.4% increase from December 31, 2012, primarily a result of installment loans and personal lines of credit.

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Mortgage Loans Held for Sale

Loans held for sale decreased $105.4 million, or 39.4%, to $162.0 million at June 30, 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 six months and a seasonal slowdown of origination and refinance activity. During the first half of 2013, the Company has originated $1.2 billion in mortgage loans, offset by sales of $1.4 billion.

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 June 30, 2013, the Company had $5.4 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 June 30, 2013, however, an insignificant number of loans have been 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 increased rewards in the form of potentially increased levels of shareholder returns. As the risks within the loan portfolio have evolved, management has responded 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 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 six 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 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 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.

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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 extent 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 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 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 increased $0.4 million, or 0.5%, as compared to December 31, 2012. The increase resulted from a $0.9 million increase in nonperforming loans, attributable to a 2.5% increase in nonaccrual loans, which was partially offset by a decrease in accruing loans past due 90 days or more of $0.3 million and a $0.5 million decrease in OREO.

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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.

TABLE 4 – NONPERFORMING ASSETS AND TROUBLED DEBT RESTRUCTURINGS (EXCLUDING ACQUIRED LOANS)

(Dollars in thousands)	June 30, 2013			December 31, 2012			Increase (Decrease)
Nonaccrual loans:
Commercial and business banking	$	32,289		$	32,312		$	(23	)	(0.1	)%
Mortgage		7,974			8,367			(393	)	(4.7	)
Consumer and credit card		8,843			7,237			1,606		22.2
Total nonaccrual loans		49,106			47,916			1,190		2.5
Accruing loans 90 days or more past due		1,071			1,371			(300	)	(21.9	)
Total nonperforming loans (1)		50,177			49,287			890		1.8
OREO and foreclosed property (2)		25,893			26,380			(487	)	(1.8	)
Total nonperforming assets (1)		76,070			75,667			403		0.5
Troubled debt restructuring in compliance with modified terms		1,813			2,354			(541	)	(23.0	)
Total nonperforming assets and troubled debt restructurings (1)	$	77,883		$	78,021		$	(138	)	(0.2	)%
Nonperforming loans to total loans (1) (4)		0.67	%		0.73	%
Nonperforming assets to total assets (1) (4)		0.69	%		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)		143.38	%		150.57	%
Allowance for credit losses to total loans (4) (5)		0.96	%		1.09	%

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

(2) OREO and foreclosed property at June 30, 2013 and December 31, 2012 include $8,434,000 and $9,199,000, respectively, of former bank properties held for development or resale.

(3) Troubled debt restructurings in compliance with modified terms for June 30, 2013 and December 31, 2012 do not include $8,613,000 and $15,356,000 in troubled debt restructurings included in total nonaccrual loans above.

(4) Total loans, total nonperforming 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.

Nonperforming loans were 0.67% of total legacy loans at June 30, 2013, six 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 4.65% of total loans at June 30, 2013 and 6.42% at December 31, 2012. The allowance for credit losses as a percentage of nonperforming loans was 143.4% at June 30, 2013 and 150.6% at December 31, 2012. Including covered loans and pooled loans, the allowance coverage of total loans was 1.95% at June 30, 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 0.69% of non-covered assets at June 30, 2013, consistent with December 31, 2012. Consistent with the overall improvement in asset quality, the Company’s reserve for credit losses as a percentage of loans excluding reserves for acquired loans decreased 13 basis points from year-end to 0.96% at June 30, 2013.

Loans defined as TDRs not included in nonperforming assets decreased to $1.8 million at the end of the second quarter of 2013. Total TDRs not covered by loss share agreements totaled $10.4 million at June 30, 2013, $7.3 million, or 41.1%, lower than December 31, 2012. One credit totaling $1.5 million was added to TDRs during 2013, but this addition was offset by loan payments and charge-offs during the first six months of the current year.

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The Company had gross charge-offs on non-covered loans of $4.2 million during the six months ended June 30, 2013. Offsetting these charge-offs were recoveries of $2.0 million. As a result, net charge-offs on non-covered loans during the first six months of 2013 were $2.2 million, or 0.06% of average loans, as compared to net charge-offs of $2.4 million, or 0.08%, for the same period of 2012.

At June 30, 2013, excluding loans covered by the FDIC loss share agreements, the Company had $181.1 million of assets classified as substandard, $2.3 million of assets classified as doubtful, and no assets classified as loss (before the application of loan discounts to acquired loans). Accordingly, the aggregate of the Company’s classified assets was 1.43% of total assets, 2.06% of total loans, and 2.30% of non-covered loans. At December 31, 2012, classified assets totaled $231.6 million, or 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. As with non-classified assets, a reserve for credit losses has been recorded for all substandard loans at June 30, 2013 according to the Company’s allowance policy. Excluding purchased impaired loans, classified assets totaled $144.5 million, compared to $176.0 million at December 31, 2012.

In addition to the problem loans described above, excluding covered loans, there were $108.2 million of loans classified as special mention at June 30, 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 $14.0 million, or 11.4%, 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.

At June 30, 2013, total past due loans excluding covered loans were 1.48% of total loans, a decrease of 23 basis points from December 31, 2012. Including covered loans, loans past due 30 days or more were 4.92% of total loans before discount adjustments at June 30, 2013 and 6.76% at December 31, 2012. Past due non-covered loans (including nonaccrual loans) decreased $8.1 million, or 6.4%, from December 31, 2012, and can be attributed to improvements in loans past due less than 60 days. Additional information on non-covered past due loans is presented in the following table.

TABLE 5 – PAST DUE NON-COVERED LOAN SEGREGATION

	June 30, 2013
	Non-acquired					Acquired					Total
			% of Outstanding					% of Outstanding					% of Outstanding
(Dollars in thousands)	Amount		Balance			Amount		Balance			Amount		Balance
Accruing loans:
30-59 days past due	$	12,462		0.17	%	$	4,087		0.64	%	$	16,549		0.20	%
60-89 days past due		2,713		0.04			2,330		0.37			5,043		0.06
90-119 days past due		120		0.00			1,300		0.20			1,420		0.02
120 days past due or more		951		0.01			578		0.09			1,529		0.02
		16,246		0.22			8,295		1.31			24,541		0.30
Nonaccrual loans (1)		49,069		0.66			46,082		7.25			95,151		1.18
	$	65,315		0.88	%	$	54,377		8.56	%	$	119,692		1.48	%

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	December 31, 2012
	Non-acquired					Acquired					Total
			% of Outstanding					% of Outstanding					% of Outstanding
(Dollars in thousands)	Amount		Balance			Amount		Balance			Amount		Balance
Accruing loans:
30-59 days past due	$	10,345		0.15	%	$	10,502		1.42	%	$	20,847		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		883		0.01			323		0.04			1,206		0.02
		14,164		0.21			13,406		1.81			27,570		0.37
Nonaccrual loans (1)		47,916		0.71			52,376		7.06			100,292		1.34
	$	62,080		0.92	%	$	65,782		8.87	%	$	127,862		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 $8.1 million decrease in non-covered past due loans was the result of a $3.0 million decrease in accruing loans past due and a $5.1 million decrease in nonaccrual loans. Commercial nonaccrual loans decreased $7.1 million, or 9.1%, and mortgage nonaccrual loans decreased $0.4 million, while consumer nonaccrual loans increased $2.4 million, or 19.7%, 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 year helped to drive the decrease in accruing consumer loans past due to $6.3 million at June 30, 2013, from $9.2 million at December 31, 2012, a 31.1% decrease.

In the non-covered commercial loan portfolio, total accruing loans past due increased $0.6 million, or 3.6%, from December 31, 2012. The increase was from loans past due less than 90 days, with one commercial credit accounting for the increase. This commercial credit was well-collateralized at June 30, 2013 in order to minimize the risk of loss.

Total non-covered mortgage loans past due decreased $1.1 million during the first six months of 2013, with 60.0% due less than 90 days and 30.9% 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 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.

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TABLE 6 – PAST DUE COVERED LOAN SEGREGATION

	June 30, 2013					December 31, 2012
			% of Outstanding					% of Outstanding
(Dollars in thousands)	Amount		Balance			Amount		Balance
Accruing loans:
30-59 days past due	$	7,691		0.72	%	$	14,799		1.16	%
60-89 days past due		5,921		0.56			7,303		0.57
90-119 days past due		1,177		0.11			2,376		0.18
120 days past due or more		—		0.00			252		0.02
Total accruing loans		14,789		1.39			24,730		1.93
Nonaccrual loans (1)		314,623		29.61			440,575		34.40
Total past due loans	$	329,412		31.00	%	$	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 June 30, 2013 totaled $329.4 million before discounts, a decrease of $135.9 million, or 29.2%, 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 second quarter of 2013 included $314.6 million in loans that would otherwise meet the Company’s definition of nonaccrual loans and $14.8 million in accruing loans past due greater than 30 days. Of the $14.8 million in accruing loans past due, $13.6 million, or 92.0%, 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 $135.9 million decrease in covered loans past due, loans past due 30 to 89 days decreased $8.5 million, or 38.4%, while nonperforming loans (defined as accruing loans greater than 90 days past due and loans that meet the definition of nonaccrual loans) decreased $127.4 million, or 28.7%. These decreases were primarily a result of loan payments 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 Accounting Policies and Estimates” section of the Company’s Form 10-K for the year ended December 31, 2012 for more information.

Change in Methodology

During the three months ended June 30, 2013, the Company modified its methodology for estimating its allowance for credit losses on its non-covered, non-acquired loan portfolio to incorporate practices, processes, and methodologies consistent with the guidance provided in the Office of the Comptroller of Currency’s (“OCC”) inter-agency policy statement 2006 SR 06-17. The methodology was modified to segregate the reserve for unfunded lending commitments (“RULC”), previously included in the Company’s allowance for credit losses, into a separate liability on the Company’s consolidated balance sheet, and to enhance the existing methodology around loss migration.

As part of the modification, the Company’s calculation of its allowance for credit losses incorporates a new loss migration model designed by the Company to improve its estimates of credit losses by:

• Providing a greater degree of segmentation of the Company’s non-covered, non-acquired loan portfolio within its existing homogeneous pools with distinct risk characteristics;

• Improving the application of the Company’s specific historical loss rates to effectively generate estimated incurred loss rates for these various pools of the loan portfolio; and

• Facilitating future loan portfolio stress testing.

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The following changes were made from the Company’s previous methodology utilized through the three months ended March 31, 2013:

• Segregation of the RULC noted above;

• Creation of a transition matrix-based model that calculates current incurred loss estimates derived from Company-specific history of risk rating changes and net charge-offs across multiple loan pools in its portfolio; and

• Elimination of the use of published available expected default frequencies (“EDFs”) adjusted for the Company’s experience in estimating losses in the Company’s commercial real estate and business loan portfolios.

As a result of the change in methodology, the Company’s allowance for loan losses is $10.8 million lower than it would have been under the previous methodology. However, offsetting the decrease is a $10.3 million increase in the Company’s RULC, included in other liabilities in its unaudited consolidated balance sheet, as of June 30, 2013. The Company’s allowance for credit losses, therefore, is $0.4 million lower than what it would have been under the previous methodology at June 30, 2013.

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.

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 Accounting 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 Accounting 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 June 30, 2013, the Company had an allowance for credit losses of $94.5 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 June 30, 2013 to cover probable losses in the Company’s loan portfolio. However, future adjustments to the allowance may be necessary, and the results of operations could be adversely affected, if circumstances differ substantially from the assumptions used by management in determining the allowance for credit losses.

The following table sets forth the effects of a +/- 10% change in estimated loss rates applied to all acquired loan portfolios, including the effects on the FDIC loss share receivables associated with portfolios subject to FDIC loss share agreements.

	10% Increase in Credit Losses			10% Decrease in Credit Losses
(Dollars in thousands)
Projected Change in Provision
Gross provision	$	10,452		$	(3,011	)
Adjustment attributable to FDIC loss share arrangements		(5,425	)		2,283
Net Provision	$	5,027		$	(728	)
Projected Change in Net Interest Income (after June 30, 2013)
2013	$	(152	)	$	(638	)
2014		(350	)		(359	)

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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 Six Months Ended
	June 30
(Dollars in thousands)	2013			2012
Balance at beginning of period	$	251,603		$	193,761
Transfer of balance to OREO		(17,685	)		(12,997	)
Transfer of balance to the reserve for unfunded commitments		(9,828	)		—
(Reversal of) Provision charged to operations		(1,569	)		11,752
(Reversal of) Provision recorded through the FDIC loss share receivable		(55,085	)		10,633
Charge-offs:
Commercial and business banking		3,536			14,734
Mortgage		2,603			376
Consumer		444			2,570
		6,583			17,680
Recoveries:
Commercial and business banking		759			732
Mortgage		188			21
Consumer		1,103			1,063
		2,050			1,816
Net charge-offs		4,533			15,864
Allowance for loan losses		162,903			187,285
Transfer of balance from the allowance for loan losses		9,828			—
Provision for unfunded lending commitments		514			—
Balance at end of period	$	173,245		$	187,285
Allowance for loan losses to nonperforming assets (1) (2)		103.2	%		116.3	%
Allowance for loan losses to total loans at end of period (2)		0.86			1.29
Net charge-offs to average loans (3)		0.06			0.08

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

(2) The allowance for loan 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

	June 30, 2013												June 30, 2012
				Non-covered loans												Non-covered loans
(Dollars in thousands)	Covered Loans			Legacy Loans			Acquired Loans			Total			Covered Loans			Legacy Loans			Acquired Loans			Total
Allowance for loan losses
Balance at beginning of period	$	168,576		$	74,211		$	8,816		$	251,603		$	118,900		$	74,861		$	—		$	193,761
(Reversal of) Provision for credit losses before benefit attributable to FDIC loss share agreements		(55,060	)		(585	)		(1,009	)		(56,654	)		12,815			5,277			4,293			22,385
Benefit attributable to FDIC loss share agreements		55,085			—						55,085			(10,633	)		—			—			(10,633	)
Net (reversal of) provision for credit losses		25			(585	)		(1,009	)		(1,569	)		2,182			5,277			4,293			11,752
Decrease in FDIC loss share receivable		(55,085	)		—			—			(55,085	)		10,633			—			—			10,633
Transfer of balance to OREO		(16,712	)		—			(973	)		(17,685	)		(12,689	)		—			(308	)		(12,997	)
Transfer of balance to the RUFC		—			(9,828	)		—			(9,828	)		—			—			—			—
Loan charge-offs		(2,334	)		(4,249	)		—			(6,583	)		(13,283	)		(4,218	)		(179	)		(17,680	)
Recoveries		—			2,050			—			2,050			19			1,775			22			1,816
Balance at end of period		94,470			61,599			6,834			162,903			105,762			77,695			3,828			187,285
Reserve for unfunded lending commitments
Transfer of balance from the allowance for loan losses		—			9,828			—			9,828			—			—			—			—
Provision for unfunded lending commitments		—			514			—			514			—			—			—			—
		—			10,342			—			10,342			—			—			—			—
Allowance for credit losses	$	94,470		$	71,941		$	6,834		$	173,245		$	105,762		$	77,695		$	3,828		$	187,285

The allowance for credit losses was $173.2 million at June 30, 2013, or 1.95% of total loans, $78.3 million lower than at December 31, 2012. The allowance as a percentage of loans was 101 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 covered portion of the loan portfolio decreased $74.1 million primarily due to a change in expected cash flows on certain of the acquired loan pools during the first six months of 2013. The reserve was adjusted during 2013 to cover the expected losses in these pools. On a gross basis, the Company was able to reverse $55.1 million to account for these estimated cash flow changes. The reserve was also reduced by $16.7 million when loan collateral was moved to OREO during 2013.

For the non-covered portfolio, asset quality improved over the prior year as evidenced by continued lower levels of net charge-offs and past due loans. As a result, the allowance on the legacy portfolio declined $2.3 million, or 3.1%, since December 31, 2012. The improvement in asset quality offset the additional allowance recorded on loan growth during the first six months of 2013. The non-covered allowance for credit losses, however, includes a reserve of $6.8 million on the non-covered acquired loans to reserve for losses probable in those portfolios at June 30, 2013 above estimated expected credit losses at acquisition.

At June 30, 2013, excluding the acquired loan portfolios, the allowance for credit losses covers nonperforming loans 1.4 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 non-covered loans, the allowance for credit losses covers 65.8% of total past due and nonaccrual loans at June 30, 2013, an increase compared to the December 31, 2012 coverage of 64.9%.

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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 $182.0 million, or 43.0%, during the first six months of 2013 as the Company recorded a valuation allowance of $31.8 million, reduced the balance $55.1 million to offset the allowance for credit loss adjustment recorded during the first six months 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 current period. See Note 8 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

	For the Six Months Ended June 30
(Dollars in thousands)	2013			2012
Balance at beginning of period	$	423,069		$	591,844
Change due to (reversal of) credit loss provision recorded on FDIC covered loans		(55,085	)		10,633
Amortization		(45,831	)		(56,411	)
Submission of reimbursable losses to the FDIC		(42,043	)		(72,527	)
Impairment		(31,813	)		—
Changes due to a change in cash flow assumptions on OREO and other		(7,257	)		(3,616	)
Balance at end of period	$	241,040		$	469,923

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 the FDIC or 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 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 $241.0 million, approximately $87.9 million is expected to be collected from the FDIC, $127.0 million, which represents improvements in cash flows expected to be collected from customers, is expected to be amortized over time, and $26.1 million is expected to be collected in conjunction with OREO transactions.

The Company may owe 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. For the third agreement, the Company has recorded a $0.1 million liability at June 30, 2013 to reserve for the amount of consideration due to the FDIC based on cumulative losses to date. However, 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.

Investment Securities

Investment securities increased by $125.2 million, or 6.4%, to $2.1 billion at June 30, 2013. The increase from December 31, 2012 was due to the use of available funds in the first six months of 2013 to purchase available for sale investments in an effort to improve the yield on total earning assets. These additional investments were offset partially by the sales and maturities of investment securities during the first six months of 2013. As a result of these purchases, investment securities increased to 16.2% of total assets at June 30, 2013, from 14.9% at December 31, 2012. Investment securities were 17.8% of average earnings assets in the current quarter and 18.8% in the second quarter of 2012. By intent, available for sale securities increased $167.1 million, or 9.6%, and held to maturity investments decreased $41.8 million, or 20.4%. The following table shows the carrying values of securities by category for the periods indicated.

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TABLE 10 – CARRYING VALUE OF SECURITIES

(Dollars in thousands)	June 30, 2013				December 31, 2012
Securities available for sale:
U.S. Government-sponsored enterprise obligations	$	424,747	20	%	$	285,724	15	%
Obligations of state and political subdivisions		117,083	6			127,075	7
Mortgage-backed securities		1,368,740	66			1,330,656	68
Other securities		1,488	—			1,549	—
		1,912,058	92			1,745,004	90
Securities held to maturity:
U.S. Government-sponsored enterprise obligations		34,465	2			69,949	4
Obligations of state and political subdivisions		89,005	4			88,909	4
Mortgage-backed securities		39,770	2			46,204	2
		163,240	8			205,062	10
	$	2,075,298	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 June 30, 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 six months of 2013. There were no transfers of securities between investment categories during the current period.

TABLE 11 – INVESTMENT PORTFOLIO ACTIVITY

(Dollars in thousands)	Available for Sale			Held to Maturity
Balance at beginning of period	$	1,745,004		$	205,062
Purchases		760,640			5,901
Sales, net of gains		(42,413	)		—
Principal maturities, prepayments and calls, net of gains		(494,593	)		(47,061	)
Amortization of premiums and accretion of discounts		(10,022	)		(662	)
Change in market value		(46,558	)		—
Balance at end of period	$	1,912,058		$	163,240

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.

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,

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• 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 June 30, 2013 and December 31, 2012.

Note 5 to the unaudited 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 of $120.5 million at June 30, 2013 decreased $602.3 million, or 83.3%, from $722.8 million at December 31, 2012. 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.

Other Assets

The following table details the changes in other asset balances for the periods indicated.

TABLE 12 – OTHER ASSETS COMPOSITION

(Dollars in thousands)	June 30, 2013		December 31, 2012		Increase (Decrease)
Other Earning Assets
FHLB and FRB stock	$	39,716	$	46,216	$	(6,500	)	(14.1	)%
Fed funds sold and financing transactions		—		4,875		(4,875	)	(100.0	)
Other interest-earning assets (1)		3,412		3,412		—		—
Total other earning assets		43,128		54,503		(11,375	)	(20.9	)
Non-Earning Assets
Premises and equipment		296,988		303,523		(6,535	)	(2.2	)
Bank-owned life insurance		102,395		100,556		1,839		1.8
Goodwill		401,872		401,872		—		—
Core deposit intangibles		16,872		19,122		(2,250	)	(11.8	)
Title plant and other intangible assets		7,546		7,660		(114	)	(1.5	)
Accrued interest receivable		33,152		32,183		969		3.0
Other real estate owned		129,607		121,536		8,071		6.6
Derivative market value		35,017		42,119		(7,102	)	(16.9	)
Receivable due from the FDIC		3,255		3,259		(4	)	(0.1	)
Investment in new market tax credit entities		132,387		135,793		(3,406	)	(2.5	)
Other		55,216		48,988		6,228		12.7
Total non-earning assets		1,214,307		1,216,611		(2,304	)	(0.2	)
Total other assets	$	1,257,435	$	1,271,114	$	(13,679	)	(1.1	)%

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

The $6.5 million decrease in FHLB and FRB stock was the result of $6.5 million in stock repurchases during the first six months of 2013. The repurchases are mandatory for eligible stock based on FHLB regulations.

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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 June 30, 2013. There was no change to the balance of other interest-earning assets from 2012.

Premises and equipment decreased $6.5 million as a result of the $4.6 million impairment recorded on closed branches during the second quarter of 2013, as well as current year depreciation taken on the assets in service.

Bank-owned life insurance increased $1.8 million as a result of the income earned on policies during the first six months of 2013.

Core deposit intangibles decreased $2.3 million due to amortization expense during the current period.

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 $8.1 million increase in OREO from December 31, 2012 was a result of the additional covered OREO properties at June 30, 2013. Covered OREO properties were $87.5 million and $77.2 million at June 30, 2013 and December 31, 2012, respectively, which represented an increase of $10.3 million, or 13.3%, during the current period. The increase was a result of the movement of foreclosed covered assets to OREO. Non-covered OREO decreased $2.2 million, or 5.0%, and was primarily a result of the sale of OREO properties during the first six months of 2013.

The decrease in the market value of the Company’s derivatives is primarily the result of the change in value of existing derivatives from December 31, 2012, and not a result of a decrease in derivative activity. The value of the derivatives at June 30, 2013 was affected by a decline in interest rates at the end of the second quarter.

The balance due to the Company from the FDIC from claims associated with the loss share agreements remained steady in 2013 compared to 2012. The current amount due from the FDIC is 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 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 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 $1.9 million and $3.3 million at June 30, 2013 and December 31, 2012, respectively.

Investments in new market tax credits decreased $3.4 million as 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 $6.2 million increase in other assets since December 31, 2012 was primarily the result of an increase of $8.7 million in the Company’s current income tax receivable as a result of the income tax benefit recorded during the current six-month period. Also affecting other assets was a $15.4 million increase in the deferred tax asset to account for future tax deductions on current period expenses. 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 six-month period ended June 30, 2013.

Deposits

The Company’s ability to attract and retain customer deposits is critical to the Company’s continued success. During the first six months of 2013, total deposits decreased $106.6 million, or 1%, totaling $10.6 billion at June 30, 2013, as total noninterest-bearing deposits increased $87.7 million and interest-bearing deposits decreased $194.2 million, or 2.2%, 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.

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The following table sets forth the composition of the Company’s deposits for the periods indicated.

TABLE 13 – DEPOSIT COMPOSITION BY PRODUCT

(Dollars in thousands)	June 30, 2013				December 31, 2012				Increase (Decrease)
Noninterest-bearing deposits	$	2,055,333	19	%	$	1,967,662	18	%	$	87,671		4.5	%
NOW accounts		2,484,824	23	%		2,523,252	24	%		(38,428	)	(1.5	)
Money market accounts		3,749,891	36	%		3,738,480	35	%		11,411		0.3
Savings accounts		383,879	4	%		364,703	3	%		19,176		5.3
Certificates of deposit		1,967,791	18	%		2,154,180	20	%		(186,389	)	(8.7	)
	$	10,641,718	100	%	$	10,748,277	100	%	$	(106,559	)	(1.0	)%

From a product perspective, interest-bearing deposits decreased $194.2 million, or 2.2%. Time deposit decreases of $186.4 million represented 96.0% of the total interest-bearing deposit decrease from December 31, 2012. Certificates of deposit in denominations of $100,000 and over decreased $108.6 million, or 9.5%, to $1.0 billion at June 30, 2013. 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. Despite the decrease in time deposits, during the second quarter, 83% of maturing time deposits were renewed with an average 25 basis point rate reduction.

The increase in noninterest-bearing deposits continues to provide the Company with a good source of available funds for continued asset growth. Noninterest-bearing deposits as a percentage of total deposits has steadily risen over the past 18 months, from 16.0% at December 31, 2011 to 19.3% at June 30, 2013.

From a market perspective, total noninterest-bearing deposit growth was seen primarily in the Houston, Texas, Lafayette, Louisiana, and Naples, Florida markets. Houston’s noninterest customer deposits increased $24.0 million, or 29.1% during the first half of 2013. Total noninterest deposits in Lafayette and the Acadiana region of Louisiana increased $39.2 million, or 10.9% since the end of 2012, while the Naples market had total customer deposit growth of $19.2 million, or 24.6%. Total deposit growth was offset by time deposit runoff in the New Orleans, Louisiana, Baton Rouge, Louisiana, and Northeast Arkansas markets, primarily a result of decreases in seasonal noninterest and interest-bearing deposits.

Short-term Borrowings

The Company may obtain advances from the FHLB of Dallas based upon its ownership of FHLB stock 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 June 30:

TABLE 14 – REPURCHASE TRANSACTIONS

(Dollars in thousands)	2013		2012
Average balance	$	294,712	$	245,401
Ending balance		289,377		235,768

Since December 31, 2012, total short-term borrowings decreased $13.7 million, or 4.5%, to $289.4 million at June 30, 2013. The decrease was the result of a decrease in securities sold under agreements to repurchase. On an average basis, short-term borrowings increased 7.9% from the second 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.

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Total short-term debt was 2.6% of total liabilities and 50.5% of total borrowings at June 30, 2013 compared to 2.6% and 41.7%, respectively, at December 31, 2012. On an average basis, short-term borrowings were 2.6% of total liabilities and 50.1% of total borrowings in the current quarter, compared to 2.6% and 39.1%, respectively, during the second quarter of 2012.

The weighted average rate paid on short-term borrowings was 0.16% during the second quarter of 2013, down eight basis points compared to 0.24% for the second quarter of 2012.

Long-term Debt

The Company’s long-term borrowings decreased $139.9 million, or 33.0%, to $283.5 million at June 30, 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 FHLB advances during the first six months, as well as 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 year based on the prepayment penalty on the advances. As a result of the repayment, the Company expects to reduce future interest expense by $1.9 million in total over the next four quarters.

On average, long-term debt decreased to $293.7 million for the second quarter of 2013 and $352.5 million for the six-month period of 2013, 30.9% and 18.2% lower, respectively, than the corresponding 2012 periods. Average long-term debt was 2.6% of total liabilities for the three months ended June 30, 2013, lower than the average during the second quarter of 2012 of 4.1%. On a period-end basis, long-term debt was 2.5% of total liabilities at June 30, 2013, also a decrease from 3.6% at December 31, 2012.

Long-term borrowings at June 30, 2013 included $95.7 million in fixed-rate advances from the FHLB of Dallas and Atlanta which cannot be paid off without incurring substantial prepayment penalties. The remaining debt consists of $111.9 million of junior subordinated deferrable interest debentures of the Company and $75.9 million in notes payable on investments in 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 June 30, 2013, shareholders’ equity totaled $1.5 billion, a decrease of $25.1 million, or 1.6%, compared to December 31, 2012. The following table details the changes in shareholders’ equity during the six months ended June 30, 2013.

TABLE 15 – CHANGES IN SHAREHOLDERS’ EQUITY

(Dollars in thousands)
Balance, beginning of period	$	1,529,868
Net income		16,307
Other comprehensive loss		(29,389	)
Reissuance of treasury stock under management incentive plans, net of shares surrendered		2,911
Cash dividends declared		(20,197	)
Share-based compensation cost		5,261
Balance, end of period	$	1,504,761

During the six-month period ended June 30, 2013, shareholder’s equity decreased primarily as a result of the change in the unrealized gain on the available for sale investment portfolio from interest rate changes toward the end of the period. Net income of $16.3 million for the first six months of 2013 was offset by dividend payments to common shareholders of $20.2 million in the first half of 2013, or $0.68 per common share.

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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 June 30, 2013, the Company exceeded all regulatory capital ratios.

At the end of the second 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.

TABLE 16 – REGULATORY CAPITAL RATIOS

(Dollars in thousands)		Well-Capitalized			June 30, 2013					December 31, 2012
Ratio	Entity	Minimums			Actual			Excess Capital		Actual			Excess Capital
Tier 1 Leverage	Consolidated		5.00	%		9.59	%	$	570,397		9.70	%	$	574,140
	IBERIABANK		5.00			8.33			412,473		8.57			433,657
Tier 1 risk-based capital	Consolidated		6.00			12.20			605,840		12.92			634,956
	IBERIABANK		6.00			10.60			447,197		11.41			493,695
Total risk-based capital	Consolidated		10.00			13.46			337,941		14.19			384,518
	IBERIABANK		10.00			11.85			180,216		12.68			244,337

The decrease in capital ratios from December 31, 2012 was primarily the result of the deployment of excess liquidity that carried a 0% risk weighting into loans and other investments that carried a higher risk rating.

Regulatory Developments

In July 2013, the U.S. banking regulatory agencies, including the Federal Reserve Board, approved a final rule to implement the revised capital adequacy standards of the Basel Committee on Banking Supervision or “Basel III”, and to address relevant provisions of the Dodd-Frank Wall Street Reform and Consumer Protection Act (the “Dodd-Frank Act”). The Company and IBERIABANK will become subject to the new rule on January 1, 2015, and certain provisions of the new rule will be phased in from that date to January 1, 2019.

The final rule:

• permits banking organizations that had less than $15 billion in total consolidated assets as of December 31, 2009, to include as Tier 1 capital trust preferred securities and cumulative perpetual preferred stock that were issued and included as Tier 1 capital prior to May 19, 2010, subject to a limit of 25% of Tier 1 capital elements, excluding any non-qualifying capital instruments and after all regulatory capital deductions and adjustments have been applied to Tier 1 capital,

• establishes new qualifying criteria for regulatory capital, including new limitations on the inclusion of deferred tax assets and mortgage servicing rights,

• requires a minimum ratio of common equity Tier 1, or CET1, capital to risk-weighted assets of 4.5%,

• increases the minimum Tier 1 capital to risk-weighted assets ratio requirements from 4% to 6%,

• retains the minimum total capital to risk-weighted assets ratio requirement of 8%,

• establishes a minimum leverage ratio requirement of 4%,

• retains the existing regulatory capital framework for 1-4 family residential mortgage exposures,

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• implements a new capital conservation buffer requirement for a banking organization to maintain a CET1 capital ratio more than 2.5% above the minimum CET1 capital, Tier 1 capital and total risk-based capital ratios in order to avoid limitations on capital distributions, including dividend payments, and certain discretionary bonus payments to executive officers. The capital conservation buffer requirement will be phased in beginning on January 1, 2016 at 0.625%, and will be fully phased in at 2.50% by January 1, 2019. A banking organization with a buffer of less than the required amount would be subject to increasingly stringent limitations on such distributions and payments as the buffer approaches zero. The new rule also generally prohibits a banking organization from making such distributions or payments during any quarter if its eligible retained income is negative and its capital conservation buffer ratio was 2.5% or less at the end of the previous quarter. The eligible retained income of a banking organization is defined as its net income for the four calendar quarters preceding the current calendar quarter, based on the organization’s quarterly regulatory reports, net of any distributions and associated tax effects not already reflected in net income,

• increases capital requirements for past-due loans, high volatility commercial real estate exposures, and certain short-term commitments and securitization exposures,

• expands the recognition of collateral and guarantors in determining risk-weighted assets, and

• removes references to credit ratings consistent with the Dodd-Frank Act and establishes due diligence requirements for securitization exposures.

Management is currently evaluating the provisions of the final rule and their expected impact on the Company and IBERIABANK. Management believes that at June 30, 2013, the Company and IBERIABANK would have met all new capital adequacy requirements on a fully phased in basis as such requirements were then effective. There can be no assurances that the Basel III capital rules will not be revised before the effective date and expiration of the phase in periods.

RESULTS OF OPERATIONS

The Company reported income available to common shareholders of $15.3 million and $12.3 million for the three months ended June 30, 2013 and 2012, respectively. Earnings per share (“EPS”) on a diluted basis were $0.53 and $0.43 for the second quarters of 2013 and 2012, respectively. On a year-to-date basis, earnings to common shareholders totaled $16.0 million, or $0.55 per diluted share, down $15.4 million and $$0.53 per diluted share, from the first six months of 2012.

In the first six months of 2013, net interest income increased $4.3 million, or 2.3%, over the same period of 2012, as interest expense decreased $8.2 million, or 24.5%, and interest income decreased $3.9 million, or 1.8%. 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 earning 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 $13.3 million decrease in the provision for loan losses, but was negatively impacted by a $53.4 million increase in noninterest expenses, the drivers of which are discussed below in the “Noninterest Expense” section of the discussion. The Company experienced similar trends in net interest income, provision for loan losses, and noninterest income and expense for the three months ended June 30, 2013 when compared to the second quarter of 2012. An increase in net interest income of 3.6%, decrease in provision for loan losses of 79.7%, and increase in noninterest expenses of 7.6% drove the $3.0 million, or 24.1%, increase in income available to common shareholders.

Despite the increase in income before income taxes, income tax expense decreased $0.2 million and $12.2 million in the second quarter and six-month period of 2013 when compared to the corresponding 2012 periods. The change in income taxes, and the effective income tax rate, was a result of the tax effect of significant non-recurring expenses during the current periods, including the indemnification asset impairment and branch closure costs. Cash earnings, defined as net income before the net of tax amortization of acquisition intangibles, amounted to $16.4 million and $13.4 million for the quarters ended June 30, 2013 and 2012, respectively.

The following discussion provides additional information on the Company’s operating results for the three- and six-month periods ended June 30, 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 3.29% and 3.45% during the second 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 3.39% and 3.59%, respectively, for the same periods. Net interest spread and net interest margin were affected in the second 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.

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Net interest income increased 3.6% in the second quarter of 2013 when compared to the corresponding quarter of 2012, to $96.5 million from $93.2 million. The improvement in net interest income was the result of a $1.0 billion increase in average earning assets and a decrease in the average cost of interest-bearing liabilities of 25 basis points, but was offset by an 8.2% increase in the average balance of interest-bearing liabilities and a 40 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 earning assets and noninterest-bearing deposits, due to acquisition-related growth from Florida Gulf in the third quarter of 2012 and organic growth in the Company’s balance sheet.

The Company experienced similar trends in net interest income and the corresponding net interest spread and net interest margin for the six months ended June 30, 2013 when compared to the same period of 2012. Net interest spread decreased 24 basis points, while net interest margin on a tax-equivalent basis decreased 28 basis points. Net interest income, however, increased $4.3 million, or 2.3%, as average earning assets increased $1.2 billion, or 11.4%, and the rate paid on interest-bearing liabilities decreased 25 basis points. Offsetting these positive effects on net interest income were a decline in the earning asset yield of 48 basis points and an increase in average interest-bearing liabilities of $826.9 million, or 9.7%.

Average loans made up 75.5% and 71.8% of average earning assets in the second quarters of 2013 and 2012, respectively. Quarter-to-date average loans increased $364.3 million, or 4.3%, since December 31, 2012, and $1.2 billion, or 15.2%, since June 30, 2012, and was the result of loan growth in the non-covered loan portfolio. The $1.2 billion increase in average loans from the second quarter of 2012 was also the result of $215.8 million in loans acquired from Florida Gulf. Investment securities made up 17.8% of average earning assets during the current quarter, compared to 18.8% 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-term and long-term debt in efforts to improve net interest income. Other significant components of earning assets during the second quarter of 2013 included the FDIC loss share receivable (2.3% of average earning assets) and excess liquidity (2.6% of average earning assets). During the second quarter of 2012, the FDIC loss share receivable was 4.8% of average earning assets, with excess liquidity accounting for 2.8% of average earning assets.

Average interest-bearing deposits made up 93.6% of average interest-bearing liabilities during the current quarter, up from 91.8% during the second quarter of 2012. Average short-term and long-term borrowings both made up 3.2% of average interest-bearing liabilities in the second quarter of 2013, respectively, compared to 3.2% and 5.0% during the second quarter of 2012.

The following tables set forth, for the periods indicated, information regarding (i) the total dollar amount of interest income 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 – QUARTERLY AVERAGE BALANCES, NET INTEREST INCOME AND INTEREST YIELDS / RATES

	For The Three Months Ended June 30
	2013									2012
(Dollars in thousands)	Average Balance			Interest Income/Expense			Yield/ Rate			Average Balance			Interest Income/Expense			Yield/ Rate
Earning Assets:
Loans receivable:
Commercial loans (TE)	$	6,321,599		$	81,049			5.17	%	$	5,510,619		$	91,188			6.65	%
Mortgage loans		494,531			7,526			6.09			446,189			8,276			7.42
Consumer and other loans		1,932,346			26,667			5.54			1,635,869			25,410			6.25
Total loans		8,748,476			115,242			5.30			7,592,677			124,874			6.61
Loans held for sale		170,620			1,351			3.17			135,273			1,232			3.64
Investment securities (TE)		2,059,502			8,978			1.92			1,992,933			10,936			2.40
FDIC loss share receivable		268,700			(18,130	)		(26.69	)		508,443			(28,484	)		(22.16	)
Other earning assets		338,668			736			0.87			348,267			725			0.84
Total earning assets		11,585,966			108,177			3.80			10,577,593			109,283			4.20
Allowance for loan losses		(183,783	)								(173,023	)
Nonearning assets		1,479,368									1,412,531
Total assets	$	12,881,551								$	11,817,101
Interest-bearing liabilities
Deposits:
NOW accounts	$	2,488,721			1,983			0.32	%	$	1,985,248			1,888			0.38	%
Savings and money market accounts		4,113,671			2,705			0.26			3,524,641			4,200			0.48
Certificates of deposit		2,025,823			4,372			0.87			2,313,176			6,559			1.14
Total interest-bearing deposits		8,628,215			9,060			0.42			7,823,065			12,647			0.65
Short-term borrowings		294,789			121			0.16			273,258			167			0.24
Long-term debt		293,746			2,514			3.39			425,313			3,297			3.07
Total interest-bearing liabilities		9,216,750			11,695			0.51			8,521,636			16,111			0.76
Noninterest-bearing demand deposits		2,010,263									1,640,327
Noninterest-bearing liabilities		125,932									151,036
Total liabilities		11,352,945									10,312,999
Shareholders’ equity		1,528,606									1,504,102
Total liabilities and shareholders’ equity	$	12,881,551								$	11,817,101
Net earning assets	$	2,369,216								$	2,055,957
Net interest spread				$	96,482			3.29	%				$	93,172			3.45	%
Net interest income (TE) / Net interest margin (TE)				$	98,878			3.39	%				$	95,593			3.59	%

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TABLE 18 – YEAR-TO-DATE AVERAGE BALANCES, NET INTEREST INCOME AND INTEREST YIELDS / RATES

	For The Six Months Ended June 30
	2013									2012
(Dollars in thousands)	Average Balance			Interest Income/Expense			Yield/ Rate			Average Balance			Interest Income/Expense			Yield/ Rate
Earning Assets:
Loans receivable:
Commercial loans (TE)	$	6,264,012		$	169,485			5.48	%	$	5,436,569		$	182,282			6.73	%
Mortgage loans		483,383			14,984			6.20			458,309			16,736			7.31
Consumer and other loans		1,899,178			53,840			5.72			1,592,055			49,791			6.29
Total loans		8,646,573			238,309			5.57			7,486,933			248,809			6.67
Loans held for sale		174,482			2,676			3.07			126,230			2,281			3.61
Investment securities (TE)		2,050,935			17,838			1.92			1,990,068			22,391			2.45
FDIC loss share receivable		326,190			(45,831	)		(27.95	)		541,110			(56,411	)		(20.62	)
Other earning assets		507,853			1,601			0.64			366,562			1,400			0.77
Total earning assets		11,706,033			214,593			3.75			10,510,903			218,470			4.23
Allowance for loan losses		(214,414	)								(179,487	)
Nonearning assets		1,486,126									1,421,175
Total assets	$	12,977,745								$	11,752,591
Interest-bearing liabilities
Deposits:
NOW accounts	$	2,476,888			3,927			0.32	%	$	1,954,809			3,799			0.39	%
Savings and money market accounts		4,141,741			6,261			0.30			3,502,857			8,585			0.49
Certificates of deposit		2,078,095			9,026			0.88			2,379,092			14,225			1.20
Total interest-bearing deposits		8,696,724			19,214			0.45			7,836,758			26,609			0.68
Short-term borrowings		293,874			261			0.18			248,662			309			0.25
Long-term debt		352,513			5,764			3.25			430,822			6,518			2.99
Total interest-bearing liabilities		9,343,111			25,239			0.54			8,516,242			33,436			0.79
Noninterest-bearing demand deposits		1,974,276									1,585,416
Noninterest-bearing liabilities		130,528									150,491
Total liabilities		11,447,915									10,252,149
Shareholders’ equity		1,529,830									1,500,442
Total liabilities and shareholders’ equity	$	12,977,745								$	11,752,591
Net earning assets	$	2,362,922								$	1,994,661
Net interest spread				$	189,354			3.20	%				$	185,034			3.44	%
Net interest income (TE) / Net interest margin (TE)				$	194,214			3.31	%				$	189,827			3.59	%

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

TABLE 19 – AVERAGE LOAN BALANCE AND YIELDS

	Three Months Ended										Six Months Ended
	June 30										June 30
	2013					2012					2013					2012
(Dollars in thousands)	Average Balance		Average Yield			Average Balance		Average Yield			Average Balance		Average Yield			Average Balance		Average Yield
Non-covered loans (TE) (1)	$	7,793,921		4.40	%	$	6,373,745		4.68	%	$	7,649,796		4.42	%	$	6,230,887		4.73	%
Covered loans (TE) (1)		954,555		12.62			1,218,932		16.66			996,777		14.40			1,256,046		16.30
FDIC loss share receivable		268,700		(26.69	)		508,443		(22.16	)		326,190		(27.95	)		541,110		(20.62	)
		1,223,255		5.11			1,727,375		5.23			1,322,967		3.96			1,797,156		5.19
	$	9,017,176		4.35	%	$	8,101,120		4.80	%	$	8,972,763		4.35	%	$	8,028,043		4.84	%

(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 20 – SUMMARY OF CHANGES IN NET INTEREST INCOME

	For the Three Months Ended									For the Six Months Ended
	June 30, 2013 / 2012									June 30, 2013 / 2012
	Change Attributable To									Change Attributable To
(Dollars in thousands)	Volume			Rate			Increase (Decrease)			Volume			Rate			Increase (Decrease)
Earning assets:
Loans receivable:
Commercial loans (TE)	$	12,015		$	(22,154	)	$	(10,139	)	$	25,213		$	(38,010	)	$	(12,797	)
Mortgage loans		836			(1,586	)		(750	)		879			(2,631	)		(1,752	)
Consumer and other loans		4,200			(2,943	)		1,257			8,787			(4,738	)		4,049
Loans held for sale		294			(175	)		119			778			(383	)		395
Investment securities (TE)		264			(2,222	)		(1,958	)		490			(5,043	)		(4,553	)
FDIC loss share receivable		15,346			(4,992	)		10,354			26,607			(16,027	)		10,580
Other earning assets		(106	)		117			11			13			188			201
Net change in income on earning assets		32,849			(33,955	)		(1,106	)		62,767			(66,644	)		(3,877	)
Interest-bearing liabilities:
Deposits:
NOW accounts		431			(336	)		95			905			(777	)		128
Savings and money market accounts		476			(1,971	)		(1,495	)		1,173			(3,497	)		(2,324	)
Certificates of deposit		(748	)		(1,439	)		(2,187	)		(1,645	)		(3,554	)		(5,199	)
Borrowings		(1,082	)		253			(829	)		(1,204	)		402			(802	)
Net change in expense on interest-bearing liabilities		(923	)		(3,493	)		(4,416	)		(771	)		(7,426	)		(8,197	)
Change in net interest spread	$	33,772		$	(30,462	)	$	3,310		$	63,538		$	(59,218	)	$	4,320

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Interest income includes income earned on interest-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 six months ended June 30, 2013, the decrease in the rates earned on the Company’s assets drove the $3.9 million decrease in interest income, but average balance increases in the largest components of earning assets partially offset these rate decreases. Average loan balances increased $1.2 billion, or 15.5%, over the comparable 2012 six-month period and can be attributed to the non-covered loan growth since June 30, 2012, both from the Florida Gulf acquisition and organic non-covered loan growth. Covered loan yields decreased 404 basis points during the current quarter. 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 31 basis points to 4.42%. The total yield of the loan portfolio when including the loss share receivable was 4.35%, 49 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 53 basis point decrease in the yield on investment securities. Average year-to-date investment securities increased $60.9 million, however, between the second 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 six months of 2013, well above the yield on interest-bearing cash and fed funds sold of 0.27% for the same period.

Driven by a decrease of 25 basis points in the rate paid on interest-bearing liabilities during the current year, interest expense decreased $8.2 million, or 24.5%, from the first six months of 2012. Despite an increase of $860.0 million in average interest-bearing deposits (a result of both acquired Florida Gulf deposits and organic deposit growth), interest expense on deposits decreased 27.8%, or $7.4 million, from 2012, as the average rate paid on these deposits decreased to 0.45% for the first six months of 2013, a 23 basis point decline. 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-term and long-term borrowings also decreased from the first six months of 2012, as a $33.1 million average balance decrease and a seven basis point decrease in the rate paid on short-term borrowings offset a 26 basis point increase in the rate paid on long-term borrowings.

Provision for Loan 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 acquired loans.

On a consolidated basis, the Company recorded a provision for loan losses of $1.8 million for the three months ended June 30, 2013, a $7.1 million, or 79.7%, decrease from the provision recorded for the same period of 2012. The Company also recorded a provision for unfunded lending commitments of $0.5 million during the current quarter. As a result, the Company’s total provision for credit losses was $2.3 million, $6.6 million below the second quarter of 2013. On a year-to-date basis, the reversal of the provision for credit losses of $1.1 million was $12.8 million below that of the first six months of 2012. The Company’s provision for the first six months of 2013 included a reversal of provision for changes in expected cash flows on the acquired loan portfolios (covered and non-covered) of $1.0 million, and a $0.1 million decrease in the provision recorded on non-acquired loans based on an improvement in asset quality. The total provision was limited in the first six months 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. On a quarter-to-date basis, the decrease was a result of the improvement noted above, but was also the result of a decrease in the provision recorded on the Company’s acquired (both covered and non-covered) loan portfolios.

Non-covered loans past due totaled $119.7 million at June 30, 2013, a decrease of $8.2 million from December 31, 2012. Past due loans, including nonaccrual loans, were 1.48% of total loans (before acquired loan discount adjustments) at the end of the second quarter of 2013, a 23 basis point decrease from December 31, 2012. Excluding the acquired loans, loans past due were 0.88% of total loans at June 30, 2013, an improvement of four basis points from the fourth quarter of 2012.

Net charge-offs on the consolidated portfolio were $4.5 million year-to-date, a net charge-off percentage of 0.11%, 32 basis points below the 0.43% through the second quarter of 2012. The net charge-offs thus far in 2013 were a result of $6.6 million in charge-offs and $2.1 million in recoveries. Excluding charge-offs from covered loan pool closures, the Company’s net charge-off ratio for the six months ended June 30, 2013 was 0.05% of average loans, three basis points below the same period of 2012.

The Company believes the allowance was appropriate at June 30, 2013, December 31, 2012, and June 30, 2012 to cover probable losses in the loan portfolio. The allowance for credit losses as a percentage of outstanding loans, net of unearned income, decreased 101 basis points from 2.96% at December 31, 2012 to 1.95% at June 30, 2013.

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The Company’s allowance for the non-covered portfolio was 0.99% of non-covered loans at June 30, 2013 and 1.12% at December 31, 2012. On the same basis, the Company’s allowance at June 30, 2013 was 143.9% 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 June 30, 2013 included noninterest income of $42.5 million compared to $41.7 million for the same period of 2012. Noninterest income totaled $87.0 million and $79.1 million for the six months ended June 30, 2013 and 2012, respectively. The growth of 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 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 28.2% compared to 27.6% of total gross revenue in the second quarter of 2012. For the year-to-date period, noninterest income accounted for 28.8% of total gross revenue compared to 26.6% in 2012.

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

TABLE 21 – NONINTEREST INCOME

	Three Months Ended						Percent			Six Months Ended					Percent
	June 30						Increase			June 30					Increase
(Dollars in thousands)	2013			2012			(Decrease)			2013		2012			(Decrease)
Service charges on deposit accounts	$	7,106		$	6,625			7.3	%	$	13,903	$	12,606			10.3	%
ATM/debit card fee income		2,357			2,166			8.8			4,541		4,189			8.4
Income from bank-owned life insurance		901			905			(0.4	)		1,840		1,855			(0.8	)
Mortgage income		17,708			18,185			(2.6	)		36,639		31,903			14.8
Gain (loss) on sale of assets		2			(24	)		108.3			49		(49	)		200.0
Gain (loss) on sale of investments, net (1)		(57	)		901			(106.3	)		2,301		3,737			(38.4	)
Title revenue		5,696			5,339			6.7			10,717		9,872			8.6
Broker commission income		3,863			3,102			24.5			7,397		6,162			20.0
Other income		4,913			4,495			9.3			9,593		8,815			8.8
Total noninterest income	$	42,489		$	41,694			1.9	%	$	86,980	$	79,090			10.0	%

(1) Gain on sale of investments includes gains on calls of held to maturity securities of $9,000 for the three months ended June 30, 2013 and $40,000 and $35,000 for the six months ended June 30, 2013 and 2012, respectively.

Service charges on deposit accounts increased $0.5 million in the second quarter of 2013 over the prior quarter-to-date period, and $1.3 million on a year-to-date basis, 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.

Quarter-to-date ATM/debit card fee income increased $0.2 million from the corresponding 2012 period, while year-to-date income increased $0.4 million, 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 second quarter and first six months of 2013 and when compared to the same periods of 2012, consistent with market performance and current yields. Excluding assets acquired, there have been no significant investments in bank owned life insurance over the past 12 months.

IMC had another successful quarter in terms of production and sales volume, which drove the $4.7 million increase in mortgage loan income over the six months ended June 30, 2012. Sales proceeds increased $306.5 million, or 29.3%, between the two periods. 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 3.03% during the first six months of 2013, a four basis point increase over the average margin in the first two quarters of 2012. For the quarter-to-date period, although production was higher, the combination of a lower margin on the sales and the negative valuation of the Company’s mortgage derivatives in the second quarter of 2013 led to a $0.5 million decrease in mortgage income between the two quarterly periods. Margin declined eight basis points from the second quarter of 2012, while the derivative income was $3.5 million lower than the three months ended June 30, 2012.

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The Company recorded minimal gains or losses on the sale of assets thus far during 2013 and in the comparable 2012 periods as a result of the disposal of equipment no longer in use.

Gains on investment sales decreased $1.0 million in the second quarter of 2013 when compared to the same 2012 period, and $1.4 million on a year-to-date basis, primarily due to changes in sales volume. Gains were recorded on the sale of $42.4 million in available-for-sale securities and the call of $47.1 million of held-to-maturity investments for the six months of 2013, compared to the sale of $173.4 million in securities during the first two quarters of 2012.

Title income increased $0.4 million during the second quarter of 2013 when compared to the same period of 2012, and $0.8 million for the six-month period, 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 $1.2 million compared to 2012 ($0.8 million between the two second quarter periods), 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 $0.8 million, or 250.5%, over the second quarter of 2012, while sales commissions increased $0.1 million, or 5.8%. For the six months ended June 30, 2013, wealth management income increased $1.6 million, or 181.9%, offset by lower sales commissions of $0.3 million, or 7.8%.

Other noninterest income increased $0.4 million for the three months ended June 30, 2013 when compared to the corresponding three-month period of 2012, and $0.8 million on a year-to-date basis. Other noninterest income in 2013 was positively impacted by higher trust department income (a quarter-to-date increase of $0.3 million, or 28.4%, and a year-to-date increase of $0.6 million, or 31.7%), 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 and $0.6 million for the three and six months ended June 30, 2013, respectively, but those increases were partially offset by lower deferred compensation earnings thus far in 2013.

Noninterest Expense

The Company’s results for the second quarter of 2013 included noninterest expenses of $117.4 million, $8.3 million above noninterest expenses of $109.0 million for the second quarter of 2012. On a year-to-date basis, noninterest expense was $53.4 million, or 25.5%, higher than the same period 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 second quarter of 2012, the Company acquired eight branches in the Florida Gulf acquisition and currently operates 278 combined offices, an increase of nine offices from June 30, 2012 after adjusting for closed or consolidated branches and offices.

The most significant driver of the increase in noninterest expense over the second quarter of 2012 was the $4.6 million impairment recorded in the second quarter of 2013 on the Company’s branches that will close during the third quarter of 2013. In addition, the $31.8 million impairment of the Company’s indemnification assets and 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 affected results for the six months ended June 30, 2013. Excluding these three charges, noninterest expense would have increased $17.4 million, or 8.4%, 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 22 – NONINTEREST EXPENSE

	Three Months Ended				Percent			Six Months Ended				Percent
	June 30				Increase			June 30				Increase
(Dollars in thousands)	2013		2012		(Decrease)			2013		2012		(Decrease)
Salaries and employee benefits	$	63,815	$	58,121		9.8	%	$	126,344	$	112,940		11.9	%
Net occupancy and equipment		14,283		12,908		10.7			29,478		25,627		15.0
Franchise and shares tax		855		1,621		(47.3	)		2,076		2,641		(21.4	)
Communication and delivery		3,116		3,138		(0.7	)		6,387		6,271		1.8
Marketing and business development		3,049		2,753		10.8			6,136		5,775		6.3
Data processing		4,264		3,430		24.3			8,256		6,606		25.0
Printing, stationery and supplies		666		885		(24.7	)		1,423		1,675		(15.0	)
Amortization of acquisition intangibles		1,181		1,289		(8.4	)		2,364		2,579		(8.3	)
Professional services		5,101		5,617		(9.2	)		9,519		9,717		(2.0	)
Net costs of OREO		367		1,498		(75.5	)		1,339		4,182		(68.0	)
Credit and other loan related expense		4,168		4,836		(13.8	)		7,907		8,862		(10.8	)
Insurance		2,782		2,520		10.4			5,283		5,129		3.0
Travel and entertainment		2,019		2,636		(23.4	)		4,287		4,760		(9.9	)
Impairment of long-lived assets		4,618		2,743		68.4			36,431		2,743		1,228.3
Prepayment penalty on FHLB debt		—		—		—			2,307		—		100.0
Other expenses		7,077		5,027		40.8			12,722		9,389		35.5
	$	117,361	$	109,022		7.6	%	$	262,259	$	208,896		25.5	%

Salaries and employee benefits increased $13.4 million in the first six months of 2013 when compared to the corresponding 2012 period, and $5.7 million between the two second quarter periods. The increases were primarily the result of increased staffing due to the growth of the Company. Current year expenses include the full year-to-date impact of additional Florida Gulf personnel, as well as personnel from the Company’s new branches. Full-time equivalent employees increased to over 2,600 at the end of the second quarter. 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 $5.4 million, or 10.5%, while related employee benefits increased 14.8%, or $1.1 million, to $8.3 million for the quarter ended June 30, 2013. Year-to-date, the increases over the same period of 2012 were $11.6 million, or 11.6%, for employee compensation and $2.9 million, or 19.0%, for employee benefits. 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 quarter included $0.8 million of additional share-based incentive compensation due to additional restricted stock, phantom stock, and option grants over the past 12 months. The increase in share-based compensation was also a result of the increase in share price over the past 12 months, which increased total phantom stock expense 158.5%. On a year-to-date basis, share-based compensation rose 17.0%, or $1.0 million. Employee compensation also includes severance and retention payments, which increased $0.9 million, or 111.5%, for the quarterly period and 87.2% on a year-to-date basis. The increase in these severance expenses was primarily a result of severance for branch closures.

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 second quarter of 2013, partially from an increase in headcount and partially from higher claims processed in the current quarter. Employee benefits for the second quarter of 2013 also included a $0.3 million, or 8.8%, increase in total payroll taxes in 2013, mostly a result of the elimination of payroll tax cuts at the end of 2012. For the six-month period, hospitalization increased 16.3%, or $1.2 million, while payroll taxes increased $1.2 million, or 18.5%.

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Net occupancy and equipment expenses were up $1.4 million from the second quarter of 2012 and $3.9 million for the first six months of 2013. These increased costs are primarily due to increased depreciation expense as a result of additional branches opened and the Florida Gulf branches, but also includes $0.7 million in accelerated depreciation on the branches that are closing in 2013. Occupancy and equipment expenses also include repairs and maintenance on branches, utilities, rentals and property taxes. Building rent, repairs and maintenance, and property taxes increased $1.0 million, $1.5 million, and $0.3 million, respectively, and account for most of the remaining increase over the period ended June 30, 2012. Similar increases in these expenses contributed to the quarterly increase in total occupancy and equipment expenses.

Franchise and shares tax expense decreased $0.8 million on a quarterly basis and $0.6 million year-to-date as a result of decreases in franchise tax expense in the current periods as a result of a lower assessment base for the calculation for IBERIABANK.

For the first six months of 2013, the Company’s expansion from the Florida Gulf acquisition as well as new branches opened since the end of the second 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.

For both the quarterly and year-to-date periods of 2013, marketing and business development expenses increased from the same periods of 2012 as a result of the Company’s focused efforts in community reinvestment activities. Offsetting the increase were reductions in advertising expenses of $0.1 million for both the second quarter and first six months of 2013 compared to the same 2012 periods.

Data processing expenses increased $0.8 million in the second quarter of 2013 and $1.7 million thus far in 2013 as additional processing charges were incurred 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 2012 quarter- and year-to-date periods. The decreases were a result of the accelerated amortization of existing core deposit and other intangible assets recorded in earlier periods.

Despite the growth of the Company over the past 12 months, professional services expense thus far in 2013 was $0.2 million lower than in 2012. The continued expansion of the size and breadth of the Company’s operations has typically required additional expenditures for legal services, consulting engagements, exam and supervisory review, and audit services. However, in the current year, legal expenses have decreased $0.4 million, driven by lower settlement and litigation expenses. In addition, the Company’s merger-related professional service expenses are $0.5 million below the same period of 2012. Offsetting these decreases, consulting expenses increased $0.3 million in the current year 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 two quarters of 2012. The Company expects to see the benefit of these improvements in future periods. Similar changes in these professional expenses contributed to the quarterly decrease.

Net costs of OREO properties decreased $1.1 million from the second quarter of 2012 and $2.8 million thus far in 2013, as write-downs taken on OREO properties decreased $1.5 million, or 36.6%, and property taxes paid on held properties decreased $0.3 million, or 33.1%. For the second quarter of 2013, the $1.1 million decrease in net OREO expenses was primarily the result of $0.3 million in additional gains on sales and a $0.6 million, or 58.1%, decrease in insurance and maintenance expenses. In addition, insurance and maintenance expenses decreased 35.5%, or $0.6 million, from the six-month period of 2012, while the gain recorded on sales of OREO properties increased $0.4 million, or 13.8%.

Credit and loan related expenses decreased $0.7 million between the second quarters of 2013 and 2012, and $1.0 million between the first six months of 2013 and 2012, 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 increased $0.3 million in the second quarter of 2013, and $0.2 million on a year-to-date basis, primarily as a result of higher deposit insurance in the current periods. The increase in deposit insurance was a result of an increase in the assessment base used by the FDIC to calculate deposit insurance, and not the result of a significant change in assessment rate on deposits due to a change in bank soundness. Despite the increased Company footprint, property, casualty, and other non-deposit insurance expenses have remained flat with the corresponding 2012 periods.

Travel and entertainment expenses decreased $0.6 million between the second quarter periods and $0.5 million from the first six months of 2012. These decreases are primarily a result of the steady decrease in transportation and lodging costs as the Company leverages technology to limit the amount of business travel required to conduct its business, despite the expansion of its branch network and number of locations, as well as general increases in mileage, lodging, and flight costs.

Other noninterest expenses for the second quarter of 2013 increased $2.1 million over the same period of 2012 and $3.3 million over the first six months of 2012 and was primarily the result of an increase in debit and credit card expenses in the current periods. The additional costs were a result of the increased employee and client base. Included in the current period expenses were additional debit card expenses of $0.5 million incurred in the second quarter of 2013 as part of the cancellation of the Company’s debit card rewards program in 2013. 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 second quarter of 2013 and $1.8 million on a year-to-date basis.

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Income Taxes

For the quarterly periods ended June 30, 2013 and 2012, the Company recorded income tax expense of $4.2 million and $4.4 million, respectively. The Company’s effective tax rate for those periods was 21.3% and 25.9%, respectively, for the three months ended June 30, 2013 and 2012. For the six months ended June 30, 2013, the Company recorded an income tax benefit of $0.7 million, which results in an effective income tax benefit of 4.2%, compared to income tax expense of $11.5 million for the comparable period in 2012, or an effective income tax rate of 26.5%. 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 six-month period in the current year, the Company’s income tax rate was also positively affected by the impairment of the FDIC loss share receivable, the prepayment penalty recorded on the repayment of FHLB debt, and the impairment recorded on closing branches 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, $13.6 million, was the primary driver of the income tax benefit recorded thus far in 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 29.9% for the first six months of 2013, compared to 30.7% for the same period of 2012. On a consolidated basis, the effective tax rate excluding these charges was 23.7% for the six months ended June 30, 2013 and 27.0% for the same six-month period 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).

The consolidated effective tax rate in 2013 has decreased when compared to the second 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 June 30, 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 as available-for-sale which provides the ability to liquidate unencumbered securities as needed. Of the $2.1 billion in the investment securities portfolio, $675.1 million is unencumbered and $1.4 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. See Note 15 to the unaudited consolidated financial statements for additional discussion related to the Company’s funding requirements.

Net cash outflows totaled $623.4 million during the first half of 2013, a decrease of $650.2 million from net cash inflows of $26.8 million during the six months ended June 30, 2012.

The following table summarizes the Company’s cash flows for the six months ended June 30 for the periods indicated.

TABLE 23 – CASH FLOW ACTIVITY BY TYPE

(Dollars in thousands)	2013			2012
Cash flow provided by operations	$	163,445		$	29,936
Cash flow used in investing activities		(510,693	)		(320,891	)
Cash flow (used in) provided by financing activities		(276,164	)		317,705
Net (decrease) increase in cash and cash equivalents	$	(623,412	)	$	26,750

84

The Company had operating cash inflow of $163.4 million for the six months ended June 30, 2013, $133.5 million more than cash provided by operations for the same period of 2012. Operating cash flow in the current year was positively impacted by an increase in the net proceeds received from mortgage loan sales of $140.8 million, but was negatively impacted by a decrease in net income.

Cash flow used in investing activities increased $189.8 million thus far in 2013 when compared to the same period of 2012. Funding loan growth and a decrease in net cash flow from investment securities drove the decrease in cash flow from the first six months of 2012. Net cash flow from investment security activity decreased $98.2 million thus far in 2013 as a result of increased security purchases and lower sales and maturities of securities in 2013. Cash flow used to fund loan growth increased $64.9 million and also had a negative impact on the current period cash flow.

Net financing cash flows decreased $593.9 million during the first six months of 2013 when compared to 2012, primarily due to a decrease in cash from customer deposits that results in a $234.1 million difference in net deposit cash flow between the two periods. Net cash outflow of $152.7 million from short-term borrowings and long-term debt in 2013 was $364.8 million higher than in the first half of 2012 and also had a negative impact on cash flow during the first six months of 2013.

Based on its available cash at June 30, 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 June 30, 2013, the Company had $95.7 million of outstanding long-term FHLB advances. There were no short-term FHLB advances outstanding at June 30, 2013. Additional FHLB advances available at June 30, 2013 amounted to $2.2 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. At June 30, 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 and 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 June 30, 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.

85

TABLE 24 – CHANGE IN NET INTEREST INCOME FROM INTEREST RATE CHANGES

Shift in Interest Rates (in bps)	% Change in Projected Net Interest Income
+200		6.8	%
+100		3.3	%
-100		(1.7	)%
-200		(4.4	)%

The influence of using the forward curve as of June 30, 2013 as a basis for projecting the interest rate environment would approximate a 0.9% 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 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 repricing of loans and investment securities over the next four quarters.

TABLE 25 – REPRICING OF CERTAIN EARNING ASSETS

(Dollars in thousands)	3Q 2013		4Q 2013		1Q 2014		2Q 2014		Total less than one year
Investment securities	$	101,471	$	85,142	$	82,893	$	83,173	$	352,679
Covered loans		323,340		88,911		97,156		115,417		624,824
Non-covered loans:
Fixed rate loans		337,230		247,710		236,957		233,634		1,055,531
Variable rate loans		3,736,736		16,735		16,788		24,137		3,794,396
Total non-covered loans		4,073,966		264,445		253,745		257,771		4,849,927
Total loans		4,397,306		353,356		350,901		373,188		5,474,751
	$	4,498,777	$	438,498	$	433,794	$	456,361	$	5,827,430

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 June 30, 2013, $4.3 billion, or 49.2%, of the Company’s total loan portfolio had adjustable interest rates. IBERIABANK had no significant concentration to any single loan component or industry segment at June 30, 2013.

86

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 June 30, 2013, 81.5% 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 19.3% of total deposits at June 30, 2013, compared to 18.3% of total deposits at December 31, 2012.

The table below presents the Company’s anticipated repricing of liabilities over the next four quarters.

TABLE 26 – REPRICING OF LIABILITIES

(Dollars in thousands)	3Q 2013		4Q 2013		1Q 2014		2Q 2014		Total less than one year
Certificates of deposit	$	337,057	$	338,165	$	322,257	$	192,659	$	1,190,138
Individual retirement accounts		32,832		40,162		39,504		24,627		137,125
Brokered deposits		69,910		41,608		12,296		33,419		157,233
Time deposits		439,799		419,935		374,057		250,705		1,484,496
Short-term borowings		289,377		—		—		—		289,377
Long-term debt		135,009		1,047		753		1,631		138,440
	$	864,185	$	420,982	$	374,810	$	252,336	$	1,912,313

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.

87

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 June 30, 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 June 30, 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.

88

PART II. OTHER INFORMATION

Item 1. Legal Proceedings

See Note 15 – 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.

89

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 Financial 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.
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.

90

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: August 8, 2013	By:	/s/ Daryl G. Byrd
		Daryl G. Byrd
		President and Chief Executive Officer
Date: August 8, 2013	By:	/s/ Anthony J. Restel
		Anthony J. Restel
		Senior Executive Vice President and Chief Financial Officer

91

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: August 8, 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: August 8, 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 June 30, 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

August 8, 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 June 30, 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

August 8, 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

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		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Compensation expense related to restricted stock	$ 2,068	$ 1,956	$ 3,945	$ 3,665

XML

Other Real Estate Owned - Schedule of Other Real Estate Owned Segregated into Non-Covered and Covered Properties (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Real Estate Properties [Line Items]
Real estate owned acquired by foreclosure	$ 119,526	$ 110,864
Real estate acquired for development or resale	8,434	9,199
Other foreclosed property	1,647	1,473
Total other real estate owned and foreclosed property	129,607	121,536
Non-covered Properties [Member]
Real Estate Properties [Line Items]
Real estate owned acquired by foreclosure	33,524	35,080
Real estate acquired for development or resale	8,434	9,199
Other foreclosed property	100	14
Total other real estate owned and foreclosed property	42,058	44,293
Covered Properties [Member]
Real Estate Properties [Line Items]
Real estate owned acquired by foreclosure	86,002	75,784
Real estate acquired for development or resale
Other foreclosed property	1,547	1,459
Total other real estate owned and foreclosed property	$ 87,549	$ 77,243

XML

Derivative Instruments and Other Hedging Activities - Additional Information (Detail) (USD $)	3 Months Ended	12 Months Ended
	Jun. 30, 2013	Dec. 31, 2012
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Cash as collateral for derivative transactions	$ 2,850,000	$ 2,650,000
Fair value of derivatives	$ 231,000

XML

Fair Value Measurements - Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale securities, Assets	$ 1,912,058	$ 1,745,004
Fair Value, Measurements, Recurring [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale securities, Assets	1,912,058	1,745,004
Derivative instruments, Assets	35,017	42,119
Total, Assets	1,947,075	1,787,123
Derivative instruments, Liabilities	26,325	36,890
Total, Liabilities	26,325	36,890
Fair Value, Measurements, Recurring [Member] | 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
Derivative instruments, Assets
Total, Assets
Derivative instruments, Liabilities
Total, Liabilities
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale securities, Assets	1,912,058	1,745,004
Derivative instruments, Assets	35,017	42,119
Total, Assets	1,947,075	1,787,123
Derivative instruments, Liabilities	26,325	36,890
Total, Liabilities	26,325	36,890
Fair Value, Measurements, Recurring [Member] | 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

XML

Goodwill and Other Acquired Intangible Assets

6 Months Ended

Jun. 30, 2013

Goodwill And Intangible Assets Disclosure [Abstract]

Goodwill and Other Acquired Intangible Assets

NOTE 10 – GOODWILL AND OTHER ACQUIRED INTANGIBLE ASSETS

Goodwill

Changes to the carrying amount of goodwill for the year ended December 31, 2012 and the six months ended June 30, 2013 are provided in the following table.

(Dollars in thousands)
Balance, December 31, 2011	$	369,811
Goodwill acquired during the year		32,420
Goodwill adjustment to correct an immaterial error		(359	)
Balance, December 31, 2012		401,872
Goodwill acquired during the period		—
Balance, June 30, 2013	$	401,872

The goodwill acquired during the year ended December 31, 2012 was a result of the Florida Gulf acquisition.

The goodwill adjustment in 2012 was 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 goodwill impairment test 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 subsequent to the impairment test that would indicate that goodwill may 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 held title plant assets totaling $6,722,000 at June 30, 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 for the periods indicated:

	June 30, 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	$	(28,534	)	$	16,872	$	45,406	$	(26,284	)	$	19,122
Customer relationship intangible asset		1,348		(524	)		824		1,348		(410	)		938
	$	46,754	$	(29,058	)	$	17,696	$	46,754	$	(26,694	)	$	20,060

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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		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Investments Debt And Equity Securities [Abstract]
Realized gains	$ 4	$ 901	$ 2,369	$ 3,717
Realized losses	(70)		(108)	(15)
Net realized gains	$ (66)	$ 901	$ 2,261	$ 3,702

XML

Consolidated Statements of Comprehensive Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Interest and Dividend Income
Loans, including fees	$ 115,242	$ 124,874	$ 238,309	$ 248,809
Mortgage loans held for sale, including fees	1,351	1,232	2,676	2,281
Investment securities:
Taxable interest	7,301	9,073	14,406	18,611
Tax-exempt interest	1,677	1,863	3,432	3,780
Amortization of FDIC loss share receivable	(18,130)	(28,484)	(45,831)	(56,411)
Other	736	725	1,601	1,400
Total interest and dividend income	108,177	109,283	214,593	218,470
Interest Expense
NOW and MMDA	4,614	5,933	10,021	12,079
Savings	74	155	167	305
Time deposits	4,372	6,559	9,026	14,225
Short-term borrowings	121	167	261	309
Long-term debt	2,514	3,297	5,764	6,518
Total interest expense	11,695	16,111	25,239	33,436
Net interest income	96,482	93,172	189,354	185,034
(Reversal of) provision for loan losses	1,807	8,895	(1,569)	11,752
Net interest income after provision for credit losses	94,675	84,277	190,923	173,282
Noninterest Income
Service charges on deposit accounts	7,106	6,625	13,903	12,606
Mortgage income	17,708	18,185	36,639	31,903
Title revenue	5,696	5,339	10,717	9,872
ATM/debit card fee income	2,357	2,166	4,541	4,189
Income from bank owned life insurance	901	905	1,840	1,855
Gain (loss) on sale of available for sale investments	(66)	901	2,261	3,702
Derivative losses reclassified from other comprehensive income	33	(400)	(392)	(786)
Broker commissions	3,863	3,102	7,397	6,162
Other income	4,891	4,871	10,074	9,587
Total noninterest income	42,489	41,694	86,980	79,090
Noninterest Expense
Salaries and employee benefits	63,815	58,121	126,344	112,940
Net occupancy and equipment	14,283	12,908	29,478	25,627
Impairment of long-lived assets	4,618	2,743	36,431	2,743
Communication and delivery	3,116	3,138	6,387	6,271
Marketing and business development	3,049	2,753	6,136	5,775
Data processing	4,264	3,430	8,256	6,606
Professional services	5,101	5,617	9,519	9,717
Credit and other loan related expense	4,168	4,836	7,907	8,862
Other expenses	14,947	15,476	31,801	30,355
Total noninterest expense	117,361	109,022	262,259	208,896
Income before income tax expense	19,803	16,949	15,644	43,476
Income tax expense (benefit)	4,213	4,389	(663)	11,523
Net Income	15,590	12,560	16,307	31,953
Preferred Stock Dividends
Income Available to Common Shareholders - Basic	15,590	12,560	16,307	31,953
Earnings Allocated to Unvested Restricted Stock	(293)	(240)	(313)	(607)
Earnings Available to Common Shareholders - Diluted	15,297	12,320	15,994	31,346
Earnings per common share - Basic	$ 0.53	$ 0.43	$ 0.55	$ 1.09
Earnings per common share - Diluted	$ 0.53	$ 0.43	$ 0.55	$ 1.08
Cash dividends declared per common share	$ 0.34	$ 0.34	$ 0.68	$ 0.68
Unrealized gains on securities:
Unrealized holding gains (losses) arising during the period	(42,303)	3,195	(44,297)	2,139
Less: reclassification adjustment for gains (losses) included in net income	66	(901)	(2,261)	(3,702)
Unrealized (loss) gain on securities, before tax	(42,237)	2,294	(46,558)	(1,563)
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	(1,121)	(7,634)	952	(2,683)
Less: reclassification adjustment for losses (gains) included in net income	(33)	400	392	786
Fair value of derivative instruments designated as cash flow hedges, before tax	(1,154)	(7,234)	1,344	(1,897)
Other comprehensive (loss), before tax	(43,391)	(4,940)	(45,214)	(3,460)
Income tax benefit related to items of other comprehensive loss	(15,187)	(1,729)	(15,825)	(1,211)
Other comprehensive loss, net of tax	(28,204)	(3,211)	(29,389)	(2,249)
Comprehensive income (loss)	$ (12,614)	$ 9,349	$ (13,082)	$ 29,704

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Earnings Per Share

6 Months Ended

Jun. 30, 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						For the Six Months Ended
	June 30						June 30
(Dollars in thousands, except per share data)	2013			2012			2013			2012
Income available to common shareholders	$	15,590		$	12,560		$	16,307		$	31,953
Distributed earnings (capital) to unvested restricted stock		(290	)		(240	)		(313	)		(613	)
Distributed earnings (capital) to common shareholders - basic		15,300			12,320			15,994			31,340
Undistributed earnings reallocated to unvested restricted stock		(3	)		—			—			6
Distributed and undistributed earnings to common shareholders - diluted	$	15,297		$	12,320		$	15,994		$	31,346
Weighted average shares outstanding - basic (1)		29,610,315			29,463,811			29,556,810			29,424,078
Weighted average shares outstanding - diluted		29,066,906			28,950,806			29,023,002			28,939,291
Earnings per common share - basic	$	0.53		$	0.43		$	0.55		$	1.09
Earnings per common share - diluted		0.53			0.43			0.55			1.08
Earnings per unvested restricted stock share - basic		0.51			0.43			0.55			1.12
Earnings per unvested restricted stock share - diluted		0.52			0.43			0.55			1.10

(1) Weighted average basic shares outstanding include 567,162 and 563,882 shares of unvested restricted stock for the three months ended June 30, 2013 and 2012, respectively, and 565,860 and 549,479 shares for the six months ended June 30, 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				For the Six Months Ended
	June 30				June 30
(Dollars in thousands, except per share data)	2013		2012		2013			2012
Distributed earnings to common shareholders	$	9,914	$	9,838	$	19,810		$	19,680
Undistributed earnings (distributed capital) to common shareholders		5,386		2,482		(3,816	)		11,660
Total earnings to common shareholders	$	15,300	$	12,320	$	15,994		$	31,340
Distributed earnings to unvested restricted stock	$	188	$	192	$	387		$	385
Undistributed earnings (distributed capital) to unvested restricted stock		102		48		(74	)		228
Total earnings allocated to restricted stock	$	290	$	240	$	313		$	613
Distributed earnings per common share	$	0.34	$	0.34	$	0.68		$	0.68
Undistributed earnings (distributed capital) per common share		0.19		0.09		(0.13	)		0.41
Total earnings per common share - basic	$	0.53	$	0.43	$	0.55		$	1.09
Distributed earnings per unvested restricted stock share	$	0.33	$	0.34	$	0.68		$	0.70
Undistributed earnings (distributed capital) per unvested restricted stock share		0.18		0.09		(0.13	)		0.42
Total earnings per unvested restricted stock share - basic	$	0.51	$	0.43	$	0.55		$	1.12

For the three months ended June 30, 2013 and 2012, the calculations for basic shares outstanding exclude the weighted average shares owned by the Recognition and Retention Plan (“RRP”) of 652,683 and 620,924, respectively, and are adjusted for the weighted average shares in treasury stock of 2,221,550 and 1,642,217, respectively. For the six months ended June 30, 2013 and 2012, basic shares outstanding exclude 647,332 and 605,469 shares owned by the RRP, respectively, and are adjusted for 2,279,103 and 1,683,003 shares, respectively, of weighted average shares of treasury stock.

The effect from the assumed exercise of 792,893 and 743,628 stock options was not included in the computation of diluted earnings per share for three months ended June 30, 2013 and 2012, respectively, because such amounts would have had an antidilutive effect on earnings per common share. For the six months ended June 30, 2013 and 2012, the effect from the assumed exercise of 787,893 and 612,200 stock options, respectively, was not included in the computation of diluted earnings per share because such amounts would have had an antidilutive effect on earnings per common share.

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Fair Value of Financial Instruments

6 Months Ended

Jun. 30, 2013

Fair Value Disclosures [Abstract]

Fair Value of Financial Instruments

NOTE 17 – 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 June 30, 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 June 30, 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 June 30, 2013 and December 31, 2012 for deposits with 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 June 30, 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:

	June 30, 2013				December 31, 2012
(Dollars in thousands)	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Financial Assets
Cash and cash equivalents	$	347,565	$	347,565	$	970,977	$	970,977
Investment securities		2,075,298		2,075,410		1,950,066		1,956,502
Loans and loans held for sale		9,065,068		9,142,472		8,766,055		8,800,563
FDIC loss share receivable		241,040		83,235		423,069		207,222
Derivative instruments		35,017		35,017		42,119		42,119
Accrued interest receivable		33,152		33,152		32,183		32,183
Financial Liabilities
Deposits	$	10,641,718	$	10,244,170	$	10,748,277	$	10,594,885
Short-term borrowings		289,377		289,377		303,045		303,045
Long-term debt		283,485		246,367		423,377		394,490
Derivative instruments		26,325		26,325		36,890		36,890
Accrued interest payable		6,057		6,057		6,615		6,615

The fair value estimates presented herein are based upon pertinent information available to management as of June 30, 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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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	Jun. 30, 2013	Dec. 31, 2012
Financing Receivable, Allowance for Credit Losses [Line Items]
Total	$ 918,215	$ 1,092,756
Total	7,984,822	7,405,824
Internally Assigned Grade Loss [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	642,215	806,092
Non-Covered Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit risk by payment status, Current	106,138	130,765
30+ Days Past Due	8,514	8,929
Premium (discount)	(9,217)	(9,988)
Total	105,435	129,706
Non-Covered Acquired Loans [Member] | Internally Assigned Grade Loss [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Discount	(65,695)	(73,167)
Total	454,854	528,613
Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	249,953	286,014
Pass [Member] | Non-Covered Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	411,399	471,143
Special Mention [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	72,952	83,986
Special Mention [Member] | Non-Covered Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	32,262	32,754
Substandard [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	310,244	426,504
Substandard [Member] | Non-Covered Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	75,791	95,456
Doubtful [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	9,066	9,588
Doubtful [Member] | Non-Covered Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	1,097	2,427
Commercial Real Estate Construction [Member] | Non-Covered Acquired Loans [Member] | Internally Assigned Grade Loss [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Discount	(5,087)	(3,968)
Total	19,622	29,566
Commercial Real Estate Construction [Member] | Pass [Member] | Non-Covered Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	18,418	25,896
Commercial Real Estate Construction [Member] | Special Mention [Member] | Non-Covered Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	1,522	2,410
Commercial Real Estate Construction [Member] | Substandard [Member] | Non-Covered Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	4,769	5,228
Commercial Real Estate Construction [Member] | Doubtful [Member] | Non-Covered Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification
Commercial Real Estate - Other [Member] | Non-Covered Acquired Loans [Member] | Internally Assigned Grade Loss [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Discount	(53,787)	(57,055)
Total	375,135	415,814
Commercial Real Estate - Other [Member] | Pass [Member] | Non-Covered Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	333,965	359,046
Commercial Real Estate - Other [Member] | Special Mention [Member] | Non-Covered Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	27,220	28,185
Commercial Real Estate - Other [Member] | Substandard [Member] | Non-Covered Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	67,523	85,420
Commercial Real Estate - Other [Member] | Doubtful [Member] | Non-Covered Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	214	218
Commercial Business [Member] | Non-Covered Acquired Loans [Member] | Internally Assigned Grade Loss [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Discount	(6,821)	(12,144)
Total	60,097	83,233
Commercial Business [Member] | Pass [Member] | Non-Covered Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	59,016	86,201
Commercial Business [Member] | Special Mention [Member] | Non-Covered Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	3,520	2,159
Commercial Business [Member] | Substandard [Member] | Non-Covered Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	3,499	4,808
Commercial Business [Member] | Doubtful [Member] | Non-Covered Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	883	2,209
Mortgage - Prime [Member] | Non-Covered Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit risk by payment status, Current	25,217	30,663
30+ Days Past Due	779	779
Premium (discount)	(1,001)	1,315
Total	24,995	32,757
Home Equity [Member] | Non-Covered Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit risk by payment status, Current	62,388	73,658
30+ Days Past Due	6,186	7,115
Premium (discount)	(6,975)	(4,498)
Total	61,599	76,275
Indirect Automobile [Member] | Non-Covered Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit risk by payment status, Current	2,962	4,698
30+ Days Past Due	190	321
Premium (discount)
Total	3,152	5,019
Consumer - Other [Member] | Non-Covered Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit risk by payment status, Current	15,571	21,746
30+ Days Past Due	1,359	714
Premium (discount)	(1,241)	(6,805)
Total	15,689	15,655
Non-Covered Loans Excluding Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit risk by payment status, Current	7,359,218	6,685,425
30+ Days Past Due	65,315	62,080
Discount	7,424,533	6,747,505
Discount
Total	2,036,346	1,834,751
Non-Covered Loans Excluding Acquired Loans [Member] | Internally Assigned Grade Loss [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Discount
Total	5,388,187	4,912,754
Non-Covered Loans Excluding Acquired Loans [Member] | Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	5,240,978	4,728,619
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	65,826	78,954
Non-Covered Loans Excluding Acquired Loans [Member] | Substandard [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	80,204	104,735
Non-Covered Loans Excluding Acquired Loans [Member] | Doubtful [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	1,179	446
Non-Covered Loans Excluding Acquired Loans [Member] | Commercial Real Estate Construction [Member] | Internally Assigned Grade Loss [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Discount
Total	325,420	293,676
Non-Covered Loans Excluding Acquired Loans [Member] | Commercial Real Estate Construction [Member] | Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	304,045	269,842
Non-Covered Loans Excluding Acquired Loans [Member] | Commercial Real Estate Construction [Member] | Special Mention [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	15,414	16,767
Non-Covered Loans Excluding Acquired Loans [Member] | Commercial Real Estate Construction [Member] | Substandard [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	5,961	7,067
Non-Covered Loans Excluding Acquired Loans [Member] | Commercial Real Estate Construction [Member] | Doubtful [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification
Non-Covered Loans Excluding Acquired Loans [Member] | Commercial Real Estate - Other [Member] | Internally Assigned Grade Loss [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Discount
Total	2,503,901	2,251,644
Non-Covered Loans Excluding Acquired Loans [Member] | Commercial Real Estate - Other [Member] | Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	2,442,277	2,162,989
Non-Covered Loans Excluding Acquired Loans [Member] | Commercial Real Estate - Other [Member] | Special Mention [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	31,860	40,547
Non-Covered Loans Excluding Acquired Loans [Member] | Commercial Real Estate - Other [Member] | Substandard [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	29,643	47,710
Non-Covered Loans Excluding Acquired Loans [Member] | Commercial Real Estate - Other [Member] | Doubtful [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	121	398
Non-Covered Loans Excluding Acquired Loans [Member] | Commercial Business [Member] | Internally Assigned Grade Loss [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Discount
Total	2,558,866	2,367,434
Non-Covered Loans Excluding Acquired Loans [Member] | Commercial Business [Member] | Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	2,494,656	2,295,788
Non-Covered Loans Excluding Acquired Loans [Member] | Commercial Business [Member] | Special Mention [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	18,552	21,640
Non-Covered Loans Excluding Acquired Loans [Member] | Commercial Business [Member] | Substandard [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	44,600	49,958
Non-Covered Loans Excluding Acquired Loans [Member] | Commercial Business [Member] | Doubtful [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	1,058	48
Non-Covered Loans Excluding Acquired Loans [Member] | Mortgage - Prime [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit risk by payment status, Current	207,986	185,843
30+ Days Past Due	9,852	10,986
Discount
Total	217,838	196,829
Non-Covered Loans Excluding Acquired Loans [Member] | Mortgage - Subprime [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit risk by payment status, Current	108,009	60,454
30+ Days Past Due
Discount
Total	108,009	60,454
Non-Covered Loans Excluding Acquired Loans [Member] | Home Equity [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit risk by payment status, Current	1,050,562	991,766
30+ Days Past Due	8,813	8,872
Discount
Total	1,059,375	1,000,638
Non-Covered Loans Excluding Acquired Loans [Member] | Indirect Automobile [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit risk by payment status, Current	346,049	320,148
30+ Days Past Due	2,430	2,818
Discount
Total	348,479	322,966
Non-Covered Loans Excluding Acquired Loans [Member] | Credit Card [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit risk by payment status, Current	51,663	51,117
30+ Days Past Due	580	605
Discount
Total	52,243	51,722
Non-Covered Loans Excluding Acquired Loans [Member] | Consumer - Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit risk by payment status, Current	248,977	201,161
30+ Days Past Due	1,425	981
Discount
Total	250,402	202,142
Covered Loans [Member] | Internally Assigned Grade Loss [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Discount	(53,098)	(78,198)
Total	589,117	727,894
Covered Loans [Member] | Consumer Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit risk by payment status, Current	330,303	354,519
30+ Days Past Due	89,942	119,964
Discount	(91,147)	(109,621)
Covered Loans [Member] | Consumer Loans [Member] | Internally Assigned Grade Loss [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total	329,098	364,862
Covered Loans [Member] | Commercial Real Estate Construction [Member] | Internally Assigned Grade Loss [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	105,528	154,011
Covered Loans [Member] | Commercial Real Estate Construction [Member] | Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	45,869	46,201
Covered Loans [Member] | Commercial Real Estate Construction [Member] | Special Mention [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	8,478	9,888
Covered Loans [Member] | Commercial Real Estate Construction [Member] | Substandard [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	50,684	97,315
Covered Loans [Member] | Commercial Real Estate Construction [Member] | Doubtful [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	497	607
Covered Loans [Member] | Commercial Real Estate - Other [Member] | Internally Assigned Grade Loss [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	462,895	554,460
Covered Loans [Member] | Commercial Real Estate - Other [Member] | Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	171,347	201,261
Covered Loans [Member] | Commercial Real Estate - Other [Member] | Special Mention [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	62,229	65,498
Covered Loans [Member] | Commercial Real Estate - Other [Member] | Substandard [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	221,688	279,171
Covered Loans [Member] | Commercial Real Estate - Other [Member] | Doubtful [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	7,631	8,530
Covered Loans [Member] | Commercial Business [Member] | Internally Assigned Grade Loss [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	73,792	97,621
Covered Loans [Member] | Commercial Business [Member] | Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	32,737	38,552
Covered Loans [Member] | Commercial Business [Member] | Special Mention [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	2,245	8,600
Covered Loans [Member] | Commercial Business [Member] | Substandard [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	37,872	50,018
Covered Loans [Member] | Commercial Business [Member] | Doubtful [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit quality indicator by asset risk classification	938	451
Covered Loans [Member] | Mortgage - Prime [Member] | Mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit risk by payment status, Current	169,722	183,795
30+ Days Past Due	39,858	52,379
Discount	(41,926)	(49,010)
Covered Loans [Member] | Mortgage - Prime [Member] | Mortgage [Member] | Internally Assigned Grade Loss [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total	167,654	187,164
Covered Loans [Member] | Home Equity [Member] | Consumer Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit risk by payment status, Current	158,896	168,729
30+ Days Past Due	48,580	65,997
Discount	(49,627)	(60,514)
Covered Loans [Member] | Home Equity [Member] | Consumer Loans [Member] | Internally Assigned Grade Loss [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total	157,849	174,212
Covered Loans [Member] | Credit Card [Member] | Consumer Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit risk by payment status, Current	744	841
30+ Days Past Due	39	65
Discount
Covered Loans [Member] | Credit Card [Member] | Consumer Loans [Member] | Internally Assigned Grade Loss [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total	783	906
Covered Loans [Member] | Consumer - Other [Member] | Consumer Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Credit risk by payment status, Current	941	1,154
30+ Days Past Due	1,465	1,523
Discount	406	(97)
Covered Loans [Member] | Consumer - Other [Member] | Consumer Loans [Member] | Internally Assigned Grade Loss [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total	$ 2,812	$ 2,580

XML

Loans Receivable - Additional Information (Detail) (USD $)	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012
Loans Receivable [Line Items]
Deferred loan origination fees	$ 15,429,000		$ 14,040,000
Deferred loan expenses	6,453,000		5,270,000
Deposit liabilities reclassified as loans receivable	2,530,000		3,231,000
Loans with carrying value pledged to secure public deposits and other borrowings	2,200,000,000		1,500,000,000
Non-covered troubled debt restructurings modified during the current period	1,545,000	4,061,000
Troubled Debt Restructurings [Member]
Loans Receivable [Line Items]
Total TDRs	$ 0	$ 27,339,000

XML

Other Real Estate Owned

6 Months Ended

Jun. 30, 2013

Banking And Thrift [Abstract]

Other Real Estate Owned

NOTE 11 – OTHER REAL ESTATE OWNED

Other real estate owned, segregated into non-covered and covered properties, consists of the following for the periods indicated:

	June 30, 2013						December 31, 2012
(Dollars in thousands)	Non-covered		Covered		Total		Non-covered		Covered		Total
Real estate owned acquired by foreclosure	$	33,524	$	86,002	$	119,526	$	35,080	$	75,784	$	110,864
Real estate acquired for development or resale		8,434		—		8,434		9,199		—		9,199
Other foreclosed property		100		1,547		1,647		14		1,459		1,473
	$	42,058	$	87,549	$	129,607	$	44,293	$	77,243	$	121,536

XML

Share-Based Compensation - Unvested Restricted Stock Award Activity (Detail)	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Balance at beginning of period	538,202	512,112
Granted	164,151	162,570
Forfeited	(26,866)	(4,306)
Earned and issued	(123,328)	(107,418)
Balance at end of period	552,159	562,958

XML

Disposition Activity - Schedule of Branch Closure Costs (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2013
Business Combinations [Abstract]
Employee termination	$ 314	$ 369
Accelerated depreciation	306	681
Impairment	4,618	4,618
Total	$ 5,238	$ 5,668

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		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Derivative Instruments And Hedging Activities [Line Items]
Amount of Gain (Loss) Recognized in OCI, net of taxes (Effective Portion)		$ (3,144)		$ (3,144)
Amount of Gain (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	32	(400)		(787)
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			209
Not Designated as Hedging Instruments [Member]
Derivative Instruments And Hedging Activities [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivatives	3,506	1,660	1,678	1,716
Not Designated as Hedging Instruments [Member] | Forward Sale Contracts [Member]
Derivative Instruments And Hedging Activities [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivatives	8,320		5,408
Not Designated as Hedging Instruments [Member] | Written and Purchased Options [Member]
Derivative Instruments And Hedging Activities [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivatives	(4,815)	1,660	(3,730)	1,716
Interest Rate Contracts [Member] | Not Designated as Hedging Instruments [Member] | Other Income (Expense) [Member]
Derivative Instruments And Hedging Activities [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivatives	1
Interest Rate Contracts [Member] | Cash Flow Hedging [Member]
Derivative Instruments And Hedging Activities [Line Items]
Amount of Gain (Loss) Recognized in OCI, net of taxes (Effective Portion)		(3,144)		(3,144)
Amount of Gain (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	32	(400)		(787)
Amount of Gain (Loss) Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)

XML

Loans Receivable - Schedule of Aging of Non-Covered Loans (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Non-Covered Loans Excluding Acquired Loans [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days	$ 12,462	$ 10,345
Past Due, 60-89 days	2,713	2,447
Past Due, Greater than 90 days	50,140	49,288
Total past due	65,315	62,080
Current	7,359,218	6,685,425
Total Non-covered loans, Net of Unearned Income	7,424,533	6,747,505
Recorded investment > 90 days and Accruing	1,071	1,371
Non-Covered Loans Excluding Acquired Loans [Member] | Commercial Loans [Member] | Commercial Real Estate Construction [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days	104	60
Past Due, 60-89 days
Past Due, Greater than 90 days	4,577	5,479
Total past due	4,681	5,539
Current	320,739	288,137
Total Non-covered loans, Net of Unearned Income	325,420	293,676
Recorded investment > 90 days and Accruing	45
Non-Covered Loans Excluding Acquired Loans [Member] | Commercial Loans [Member] | Commercial Real Estate - Other [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days	8,275	3,590
Past Due, 60-89 days	1,318
Past Due, Greater than 90 days	13,804	23,559
Total past due	23,397	27,149
Current	2,480,504	2,224,495
Total Non-covered loans, Net of Unearned Income	2,503,901	2,251,644
Recorded investment > 90 days and Accruing	76	83
Non-Covered Loans Excluding Acquired Loans [Member] | Commercial Loans [Member] | Commercial Business [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days	89	1,430
Past Due, 60-89 days	20	13
Past Due, Greater than 90 days	14,028	3,687
Total past due	14,137	5,130
Current	2,544,729	2,362,304
Total Non-covered loans, Net of Unearned Income	2,558,866	2,367,434
Recorded investment > 90 days and Accruing		329
Non-Covered Loans Excluding Acquired Loans [Member] | Residential Mortgage Loans [Member] | Mortgage - Prime [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days	580	662
Past Due, 60-89 days	547	1,156
Past Due, Greater than 90 days	8,725	9,168
Total past due	9,852	10,986
Current	207,986	185,843
Total Non-covered loans, Net of Unearned Income	217,838	196,829
Recorded investment > 90 days and Accruing	750	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
Past Due, Greater than 90 days
Total past due
Current	108,009	60,454
Total Non-covered loans, Net of Unearned Income	108,009	60,454
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	1,213	2,283
Past Due, 60-89 days	343	796
Past Due, Greater than 90 days	7,257	5,793
Total past due	8,813	8,872
Current	1,050,562	991,766
Total Non-covered loans, Net of Unearned Income	1,059,375	1,000,638
Recorded investment > 90 days and Accruing	200	158
Non-Covered Loans Excluding Acquired Loans [Member] | Consumer and Other Loans [Member] | Indirect Automobile [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days	1,109	1,624
Past Due, 60-89 days	309	326
Past Due, Greater than 90 days	1,012	868
Total past due	2,430	2,818
Current	346,049	320,148
Total Non-covered loans, Net of Unearned Income	348,479	322,966
Recorded investment > 90 days and Accruing
Non-Covered Loans Excluding Acquired Loans [Member] | Consumer and Other Loans [Member] | Credit Card [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days	102	130
Past Due, 60-89 days	54	51
Past Due, Greater than 90 days	424	424
Total past due	580	605
Current	51,663	51,117
Total Non-covered loans, Net of Unearned Income	52,243	51,722
Recorded investment > 90 days and Accruing
Non-Covered Loans Excluding Acquired Loans [Member] | Consumer and Other Loans [Member] | Consumer - Other [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days	990	566
Past Due, 60-89 days	122	105
Past Due, Greater than 90 days	313	310
Total past due	1,425	981
Current	248,977	201,161
Total Non-covered loans, Net of Unearned Income	250,402	202,142
Recorded investment > 90 days and Accruing
Non-Covered Acquired Loans [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days	4,087	10,502
Past Due, 60-89 days	2,330	2,499
Past Due, Greater than 90 days	47,961	52,781
Total past due	54,378	65,782
Current	580,823	675,692
Discount	(74,912)	(83,155)
Total Non-covered loans, Net of Unearned Income	560,289	658,319
Recorded investment > 90 days and Accruing	47,961	52,781
Non-Covered Acquired Loans [Member] | Commercial Loans [Member] | Commercial Real Estate Construction [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days	186	369
Past Due, 60-89 days	51
Past Due, Greater than 90 days	3,740	4,067
Total past due	3,977	4,436
Current	20,732	29,098
Discount	(5,087)	(3,968)
Total Non-covered loans, Net of Unearned Income	19,622	29,566
Recorded investment > 90 days and Accruing	3,740	4,067
Non-Covered Acquired Loans [Member] | Commercial Loans [Member] | Commercial Real Estate - Other [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days	2,413	5,971
Past Due, 60-89 days	1,576	1,572
Past Due, Greater than 90 days	34,942	38,987
Total past due	38,931	46,530
Current	389,991	426,339
Discount	(53,787)	(57,055)
Total Non-covered loans, Net of Unearned Income	375,135	415,814
Recorded investment > 90 days and Accruing	34,942	38,987
Non-Covered Acquired Loans [Member] | Commercial Loans [Member] | Commercial Business [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days	340	1,410
Past Due, 60-89 days	97	524
Past Due, Greater than 90 days	2,519	3,953
Total past due	2,956	5,887
Current	63,962	89,490
Discount	(6,821)	(12,144)
Total Non-covered loans, Net of Unearned Income	60,097	83,233
Recorded investment > 90 days and Accruing	2,519	3,953
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	25,217	30,663
Discount	(1,001)	1,315
Total Non-covered loans, Net of Unearned Income	24,995	32,757
Recorded investment > 90 days and Accruing	779	779
Non-Covered Acquired Loans [Member] | Consumer and Other Loans [Member] | Home Equity [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days	911	2,379
Past Due, 60-89 days	427	382
Past Due, Greater than 90 days	4,848	4,354
Total past due	6,186	7,115
Current	62,388	73,658
Discount	(6,975)	(4,498)
Total Non-covered loans, Net of Unearned Income	61,599	76,275
Recorded investment > 90 days and Accruing	4,848	4,354
Non-Covered Acquired Loans [Member] | Consumer and Other Loans [Member] | Indirect Automobile [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days	58	171
Past Due, 60-89 days	14	4
Past Due, Greater than 90 days	118	146
Total past due	190	321
Current	2,962	4,698
Discount
Total Non-covered loans, Net of Unearned Income	3,152	5,019
Recorded investment > 90 days and Accruing	118	146
Non-Covered Acquired Loans [Member] | Consumer and Other Loans [Member] | Consumer - Other [Member]
Loans Receivable [Line Items]
Past Due, 30-59 days	179	202
Past Due, 60-89 days	165	17
Past Due, Greater than 90 days	1,015	495
Total past due	1,359	714
Current	15,571	21,746
Discount	(1,241)	(6,805)
Total Non-covered loans, Net of Unearned Income	15,689	15,655
Recorded investment > 90 days and Accruing	$ 1,015	$ 495

XML

Share-Based Compensation (Tables)

6 Months Ended

Jun. 30, 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 June 30				For the Six Months Ended June 30
(Dollars in thousands, except per share data)	2013		2012		2013		2012
Compensation expense related to stock options	$	533	$	542	$	1,066	$	983
Income tax benefit related to stock options		187		190		374		344
Impact on basic earnings per share		0.01		0.01		0.02		0.02
Impact on diluted earnings per share		0.01		0.01		0.02		0.02

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 six-month periods ended June 30:

	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 periods indicated.

	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		(44,278	)		29.28
Forfeited or expired		(26,164	)		58.17
Outstanding options, June 30, 2012		1,244,408		$	51.00		5.0 Years
Outstanding exercisable at June 30, 2012		788,594		$	49.19		3.2 Years
Outstanding options, December 31, 2012		1,236,075		$	51.48
Granted		75,722			52.36
Exercised		(116,324	)		36.43
Forfeited or expired		(31,270	)		55.39
Outstanding options, June 30, 2013		1,164,203		$	52.94		4.9 Years
Outstanding exercisable at June 30, 2013		774,446		$	52.73		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 June 30				For the Six Months Ended June 30
(Dollars in thousands)	2013		2012		2013		2012
Compensation expense related to restricted stock	$	2,068	$	1,956	$	3,945	$	3,665

Unvested Restricted Stock Award Activity

The following table represents unvested restricted stock award activity for the six months ended June 30:

	2013			2012
Balance at beginning of period		538,202			512,112
Granted		164,151			162,570
Forfeited		(26,866	)		(4,306	)
Earned and issued		(123,328	)		(107,418	)
Balance at end of period		552,159			562,958

Schedule of Share and Dividend Equivalent Share Award Activity

The following table represents phantom stock award activity during the periods indicated. The Company recorded $1,112,000 and $430,000, respectively, during the three months ended June 30, 2013 and 2012 and $1,811,000 and $1,181,000, respectively, during the six months ended June 30, 2013 and 2012, 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		106,351			4,347			110,698			5,585,000
Forfeited share equivalents		(4,443	)		(156	)		(4,599	)		(232,000	)
Vested share equivalents		(12,785	)		(805	)		(13,590	)		(691,000	)
Balance, June 30, 2012		322,044			12,328			334,372		$	16,869,000
Balance, December 31, 2012		318,729			16,035			334,764		$	16,444,000
Granted		163,498			5,899			169,397			9,081,000
Forfeited share equivalents		(15,121	)		(641	)		(15,762	)		(845,000	)
Vested share equivalents		(40,185	)		(2,876	)		(43,061	)		(2,156,000	)
Balance, June 30, 2013		426,921			18,417			445,338		$	23,875,000

(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 $53.61 and $50.45 on June 30, 2013 and 2012, respectively.

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Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 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						For the Six Months Ended
	June 30						June 30
(Dollars in thousands, except per share data)	2013			2012			2013			2012
Income available to common shareholders	$	15,590		$	12,560		$	16,307		$	31,953
Distributed earnings (capital) to unvested restricted stock		(290	)		(240	)		(313	)		(613	)
Distributed earnings (capital) to common shareholders - basic		15,300			12,320			15,994			31,340
Undistributed earnings reallocated to unvested restricted stock		(3	)		—			—			6
Distributed and undistributed earnings to common shareholders - diluted	$	15,297		$	12,320		$	15,994		$	31,346
Weighted average shares outstanding - basic (1)		29,610,315			29,463,811			29,556,810			29,424,078
Weighted average shares outstanding - diluted		29,066,906			28,950,806			29,023,002			28,939,291
Earnings per common share - basic	$	0.53		$	0.43		$	0.55		$	1.09
Earnings per common share - diluted		0.53			0.43			0.55			1.08
Earnings per unvested restricted stock share - basic		0.51			0.43			0.55			1.12
Earnings per unvested restricted stock share - diluted		0.52			0.43			0.55			1.10

(1) Weighted average basic shares outstanding include 567,162 and 563,882 shares of unvested restricted stock for the three months ended June 30, 2013 and 2012, respectively, and 565,860 and 549,479 shares for the six months ended June 30, 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				For the Six Months Ended
	June 30				June 30
(Dollars in thousands, except per share data)	2013		2012		2013			2012
Distributed earnings to common shareholders	$	9,914	$	9,838	$	19,810		$	19,680
Undistributed earnings (distributed capital) to common shareholders		5,386		2,482		(3,816	)		11,660
Total earnings to common shareholders	$	15,300	$	12,320	$	15,994		$	31,340
Distributed earnings to unvested restricted stock	$	188	$	192	$	387		$	385
Undistributed earnings (distributed capital) to unvested restricted stock		102		48		(74	)		228
Total earnings allocated to restricted stock	$	290	$	240	$	313		$	613
Distributed earnings per common share	$	0.34	$	0.34	$	0.68		$	0.68
Undistributed earnings (distributed capital) per common share		0.19		0.09		(0.13	)		0.41
Total earnings per common share - basic	$	0.53	$	0.43	$	0.55		$	1.09
Distributed earnings per unvested restricted stock share	$	0.33	$	0.34	$	0.68		$	0.70
Undistributed earnings (distributed capital) per unvested restricted stock share		0.18		0.09		(0.13	)		0.42
Total earnings per unvested restricted stock share - basic	$	0.51	$	0.43	$	0.55		$	1.12

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Basis of Presentation (Policies)

6 Months Ended

Jun. 30, 2013

Accounting Policies [Abstract]

Principles of Consolidation

PRINCIPLES OF CONSOLIDATION

The consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries, IBERIABANK, Lenders Title Company (“LTC”), IBERIA Capital Partners L.L.C. (“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 the Company’s commercial and single family residential indemnification agreements are five years 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 assets. 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 amount collectible from the FDIC 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 the 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.

A claim receivable is established within other assets when a loss is incurred and the indemnification asset is reduced 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 June 30, 2013, the Company has $162,031,000 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 are included in Note 16.

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 (OREO)

Fair values of OREO at June 30, 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 $1,402,000 and $1,477,000 in earnings for the three months ended June 30, 2013 and 2012, respectively, and $2,556,000 and $4,033,000 for the six months ended June 30, 2013 and 2012, respectively.

Derivative financial instruments

The Company may utilize 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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Earnings Per Share - Schedule of Basic Earnings Per Common Share (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Distributed earnings	$ 9,914	$ 9,838	$ 19,810	$ 19,680
Undistributed earnings (distributed capital) to common shareholders	5,386	2,482	(3,816)	11,660
Total earnings to common shareholders	15,300	12,320	15,994	31,340
Distributed earnings	$ 0.34	$ 0.34	$ 0.68	$ 0.68
Undistributed earnings (distributed capital) per common share	$ 0.19	$ 0.09	$ (0.13)	$ 0.41
Total earnings per common share - basic	$ 0.53	$ 0.43	$ 0.55	$ 1.09
Unvested Restricted Stock [Member]
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Distributed earnings	188	192	387	385
Undistributed earnings (distributed capital) to common shareholders	102	48	(74)	228
Total earnings allocated to restricted stock	$ 290	$ 240	$ 313	$ 613
Distributed earnings	$ 0.33	$ 0.34	$ 0.68	$ 0.70
Undistributed earnings (distributed capital) per common share	$ 0.18	$ 0.09	$ (0.13)	$ 0.42
Total earnings per common share - basic	$ 0.51	$ 0.43	$ 0.55	$ 1.12

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Goodwill and Other Acquired Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2013

Goodwill And Intangible Assets Disclosure [Abstract]

Schedule of Carrying Amount of Goodwill

Changes to the carrying amount of goodwill for the year ended December 31, 2012 and the six months ended June 30, 2013 are provided in the following table.

(Dollars in thousands)
Balance, December 31, 2011	$	369,811
Goodwill acquired during the year		32,420
Goodwill adjustment to correct an immaterial error		(359	)
Balance, December 31, 2012		401,872
Goodwill acquired during the period		—
Balance, June 30, 2013	$	401,872

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Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 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.

	June 30, 2013
			Fair Value Measurements Using
(Dollars in thousands)	Total		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	$	1,912,058	$	—	$	1,912,058	$	—
Derivative instruments		35,017		—		35,017		—
Total	$	1,947,075	$	—	$	1,947,075	$	—
Liabilities
Derivative instruments		26,325		—		26,325		—
Total	$	26,325	$	—	$	26,325	$	—

	December 31, 2012
			Fair Value Measurements Using
(Dollars in thousands)	Total		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 six 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)	$	3,548	$	—
Change in unrealized gains (losses) relating to assets still held at June 30, 2013		—		(28,204	)

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.

	June 30, 2013
			Fair Value Measurements Using
(Dollars in thousands)	Total		Quoted Prices in Active Markets for     Identical Assets     (Level 1)		Significant Other     Observable     Inputs (Level 2)		Significant     Unobservable     Inputs (Level 3)
Assets
Loans	$	1,465	$	—	$	1,465	$	—
Mortgage loans held for sale		118,848		—		118,848		—
Property and equipment		6,721		—		6,721		—
OREO		24,852		—		24,852		—
Total	$	151,886	$	—	$	151,886	$	—

	December 31, 2012
			Fair Value Measurements Using
(Dollars in thousands)	Total		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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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	6 Months Ended	12 Months Ended
	Jun. 30, 2013	Dec. 31, 2012
Schedule of Securities Available-for-sale And Held To Maturity [Line Items]
Securities held to maturity, Amortized Cost	$ 163,240	$ 205,062
Securities held to maturity, Gross Unrealized Gains	3,112	6,702
Securities held to maturity, Gross Unrealized Losses	(3,000)	(266)
Securities held to maturity, Estimated Fair Value	163,352	211,498
Securities available for sale, Amortized Cost	1,920,491	1,706,916
Securities available for sale, Gross Unrealized Gains	17,870	40,134
Securities available for sale, Gross Unrealized Losses	(26,303)	(2,046)
Securities available for sale, Estimated Fair Value	1,912,058	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	34,465	69,949
Securities held to maturity, Gross Unrealized Gains	771	1,244
Securities held to maturity, Estimated Fair Value	35,236	71,193
Securities available for sale, Amortized Cost	430,701	281,746
Securities available for sale, Gross Unrealized Gains	1,814	4,364
Securities available for sale, Gross Unrealized Losses	(7,768)	(386)
Securities available for sale, Estimated Fair Value	424,747	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	89,005	88,909
Securities held to maturity, Gross Unrealized Gains	1,945	4,730
Securities held to maturity, Gross Unrealized Losses	(1,331)	(113)
Securities held to maturity, Estimated Fair Value	89,619	93,526
Securities available for sale, Amortized Cost	114,008	120,680
Securities available for sale, Gross Unrealized Gains	3,293	6,573
Securities available for sale, Gross Unrealized Losses	(218)	(178)
Securities available for sale, Estimated Fair Value	117,083	127,075
Mortgage-Backed Securities [Member]
Schedule of Securities Available-for-sale And Held To Maturity [Line Items]
Securities held to maturity, Amortized Cost	39,770	46,204
Securities held to maturity, Gross Unrealized Gains	396	728
Securities held to maturity, Gross Unrealized Losses	(1,669)	(153)
Securities held to maturity, Estimated Fair Value	38,497	46,779
Securities available for sale, Amortized Cost	1,374,322	1,303,030
Securities available for sale, Gross Unrealized Gains	12,735	29,108
Securities available for sale, Gross Unrealized Losses	(18,317)	(1,482)
Securities available for sale, Estimated Fair Value	1,368,740	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	28	89
Securities available for sale, Estimated Fair Value	$ 1,488	$ 1,549

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Allowance for Credit Losses and Credit Quality (Tables)

6 Months Ended

Jun. 30, 2013

Effect of Change in Methodology on the Company's Unaudited Consolidated Financial Statements

The following table presents the effect of the change in methodology on the Company’s unaudited consolidated financial statements as of and for the three months ended June 30, 2013.

(Dollars in thousands)	New Methodology			Previous Methodology		Difference			Per Share Difference
Selected Data
Allowance for loan losses	$	61,599		$	72,396	$	(10,797	)
Reserve for unfunded lending commitments		10,342			—		10,342
Allowance for credit losses	$	71,941		$	72,396	$	(455	)
(Reversal of) Provision for loan losses	$	(585	)	$	384	$	(969	)	$	(0.02	)
Provision for unfunded lending commitments		514			—		514			0.01
Total provision for credit losses	$	(71	)	$	384	$	(455	)	$	(0.01	)

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 is as follows.

	June 30, 2013
	Non-covered loans
(Dollars in thousands)	Excluding Acquired Loans			Acquired Loans			Covered Loans			Total
Allowance for loan losses
Balance, beginning of period	$	74,211		$	8,816		$	168,576		$	251,603
(Reversal of) Provision for loan losses before benefit attributable to FDIC loss share agreements		(585	)		(1,009	)		(55,060	)		(56,654	)
Adjustment attributable to FDIC loss share arrangements		—			—			55,085			55,085
Net (reversal of) provision for loan losses		(585	)		(1,009	)		25			(1,569	)
Decrease in FDIC loss share receivable		—			—			(55,085	)		(55,085	)
Transfer of balance to OREO		—			(973	)		(16,712	)		(17,685	)
Transfer of balance to the RUFC		(9,828	)		—			—			(9,828	)
Loans charged-off		(4,249	)		—			(2,334	)		(6,583	)
Recoveries		2,050			—			—			2,050
Balance, end of period	$	61,599		$	6,834		$	94,470		$	162,903
Reserve for unfunded lending commitments
Balance, beginning of period	$	—		$	—		$	—		$	—
Transfer of balance from the allowance for loan losses		9,828			—			—			9,828
Provision for unfunded lending commitments		514			—			—			514
Balance, end of period	$	10,342		$	—		$	—		$	10,342

	June 30, 2012
	Non-covered loans
	Excluding Acquired Loans			Acquired Loans			Covered Loans			Total
Allowance for loan losses
Balance, beginning of period	$	74,861		$	—		$	118,900		$	193,761
(Reversal of) Provision for loan losses before benefit attributable to FDIC loss share agreements		5,277			4,293			12,815			22,385
Adjustment attributable to FDIC loss share arrangements		—			—			(10,633	)		(10,633	)
Net (reversal of) provision for loan losses		5,277			4,293			2,182			11,752
Increase in FDIC loss share receivable		—			—			10,633			10,633
Transfer of balance to OREO		—			(308	)		(12,689	)		(12,997	)
Loans charged-off		(4,218	)		(179	)		(13,283	)		(17,680	)
Recoveries		1,775			22			19			1,816
Balance, end of period	$	77,695		$	3,828		$	105,762		$	187,285

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, is as follows:

	June 30, 2013
(Dollars in thousands)	Commercial real estate			Commercial business			Mortgage			Consumer			Unallocated		Total
Allowance for loan losses
Balance at beginning of period	$	38,264		$	28,721		$	2,125		$	13,917		$	—	$	83,027
(Reversal of) Provision for loan losses		(7,459	)		557			2,961			2,347			—		(1,594	)
Transfer of balance to OREO		(264	)		(90	)		(612	)		(7	)		—		(973	)
Transfer of balance to the RUFC		(2,939	)		(3,497	)		(40	)		(3,352	)		—		(9,828	)
Loans charged off		(807	)		(395	)		(2,603	)		(444	)		—		(4,249	)
Recoveries		500			259			188			1,103			—		2,050
Balance at end of period	$	27,295		$	25,555		$	2,019		$	13,564		$	—	$	68,433
Reserve for unfunded commitments
Balance at beginning of period	$	—		$	—		$	—		$	—		$	—	$	—
Transfer of balance from the allowance for loan losses		2,939			3,497			40			3,352			—		9,828
Provision for unfunded commitments		545			12			—			(43	)		—		514
Balance at end of period	$	3,484		$	3,509		$	40		$	3,309		$	—	$	10,342
Allowance on loans individually evaluated for impairment	$	72		$	116		$	137		$	—		$	—	$	325
Allowance on loans collectively evaluated for impairment		27,223			25,439			1,882			13,564			—		68,108
Loans, net of unearned income:
Balance at end of period	$	3,224,078		$	2,618,963		$	350,842		$	1,790,939		$	—	$	7,984,822
Balance at end of period individually evaluated for impairment		16,525			14,014			1,152			267			—		31,958
Balance at end of period collectively evaluated for impairment		3,207,553			2,604,949			349,690			1,790,672			—		7,952,864
Balance at end of period acquired with deteriorated credit quality		40,015			3,468			383			3,287			—		47,153

	June 30, 2012
(Dollars in thousands)	Commercial real estate			Commercial business			Mortgage			Consumer			Unallocated		Total
Allowance for credit losses
Balance at beginning of period	$	35,604		$	25,705		$	897		$	12,655		$	—	$	74,861
(Reversal of) Provision for loan losses		2,320			4,576			712			1,962			—		9,570
Transfer of balance to OREO		(76	)		—			(226	)		(6	)		—		(308	)
Loans charged off		(1,154	)		(435	)		(246	)		(2,562	)		—		(4,397	)
Recoveries		654			61			21			1,061			—		1,797
Balance at end of period	$	37,348		$	29,907		$	1,158		$	13,110		$	—	$	81,523
Allowance on loans individually evaluated for impairment	$	1,307		$	201		$	187		$	—		$	—	$	1,695
Allowance on loans collectively evaluated for impairment		36,041			29,706			971			13,110			—		79,828
Loans, net of unearned income:
Balance at end of period	$	2,660,509		$	2,180,479		$	235,221		$	1,470,156		$	—	$	6,546,365
Balance at end of period individually evaluated for impairment		28,841			2,402			1,612			226			—		33,081
Balance at end of period collectively evaluated for impairment		2,631,668			2,178,077			233,609			1,469,930			—		6,513,284
Balance at end of period acquired with deteriorated credit quality		34,650			560			—			4,971			—		40,181

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, is as follows:

	June 30, 2013
(Dollars in thousands)	Commercial       real estate			Commercial     business			Mortgage			Consumer			Unallocated		Total
Allowance for loan losses
Balance at beginning of period	$	100,871		$	11,375		$	22,566		$	33,764		$	—	$	168,576
(Reversal of) Provision for loan losses		27			—			(1	)		(1	)		—		25
(Decrease) Increase in FDIC loss share receivable		(26,737	)		(2,672	)		(7,073	)		(18,603	)		—		(55,085	)
Transfer of balance to OREO		(12,178	)		(314	)		(4,221	)		1			—		(16,712	)
Loans charged off		(2,334	)		—			—			—			—		(2,334	)
Balance at end of period	$	59,649		$	8,389		$	11,271		$	15,161		$	—	$	94,470
Allowance on loans individually evaluated for impairment	$	—		$	—		$	—		$	—		$	—	$	—
Allowance on loans collectively evaluated for impairment		59,649			8,389			11,271			15,161			—		94,470
Loans, net of unearned income:
Balance at end of period	$	520,160		$	68,957		$	167,654		$	161,444		$	—	$	918,215
Balance at end of period individually evaluated for impairment		—			—			—			—			—		—
Balance at end of period collectively evaluated for impairment		520,160			68,957			167,654			161,444			—		918,215
Balance at end of period acquired with deteriorated credit quality		132,565			2,005			17,969			19,504			—		172,043

	June 30, 2012
(Dollars in thousands)	Commercial       real estate			Commercial     business			Mortgage			Consumer			Unallocated		Total
Allowance for credit losses
Balance at beginning of period	$	69,175		$	9,788		$	21,184		$	18,753		$	—	$	118,900
(Reversal of) Provision for loan losses		2,821			848			(1,549	)		62			—		2,182
(Decrease) Increase in FDIC loss share receivable		11,238			1,097			1,354			(3,056	)		—		10,633
Transfer of balance to OREO		(8,545	)		(119	)		(3,200	)		(825	)		—		(12,689	)
Loans charged off		(13,143	)		—			(131	)		(9	)		—		(13,283	)
Recoveries		16			—			—			3			—		19
Balance at end of period	$	61,562		$	11,614		$	17,658		$	14,928		$	—	$	105,762
Allowance on loans individually evaluated for impairment	$	—		$	—		$	—		$	—		$	—	$	—
Allowance on loans collectively evaluated for impairment		61,562			11,614			17,658			14,928			—		105,762
Loans, net of unearned income:
Balance at end of period	$	653,354		$	125,681		$	183,568		$	227,544		$	—	$	1,190,147
Balance at end of period individually evaluated for impairment		—			—			—			—			—		—
Balance at end of period collectively evaluated for impairment		653,354			125,681			183,568			227,544			—		1,190,147
Balance at end of period acquired with deteriorated credit quality		170,803			3,842			29,303			24,402			—		228,350

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

Asset risk classifications for commercial loans reflect the classification as of June 30, 2013 and December 31, 2012.

	Non-covered loans excluding acquired loans
	June 30, 2013												December 31, 2012
(Dollars in thousands)	Pass		Special Mention		Substandard		Doubtful		Discount		Total		Pass		Special Mention		Substandard		Doubtful		Discount		Total
Commercial real estate construction	$	304,045	$	15,414	$	5,961	$	—	$	—	$	325,420	$	269,842	$	16,767	$	7,067	$	—	$	—	$	293,676
Commercial real estate - other		2,442,277		31,860		29,643		121		—		2,503,901		2,162,989		40,547		47,710		398		—		2,251,644
Commercial business		2,494,656		18,552		44,600		1,058		—		2,558,866		2,295,788		21,640		49,958		48		—		2,367,434
Total	$	5,240,978	$	65,826	$	80,204	$	1,179	$	—		5,388,187	$	4,728,619	$	78,954	$	104,735	$	446	$	—	$	4,912,754

	Non-covered loans excluding acquired loans
	June 30, 2013								December 31, 2012
	Current		30+ Days Past Due		Premium (discount)		Total		Current		30+ Days Past Due		Premium (discount)		Total
Mortgage - Prime	$	207,986	$	9,852	$	—	$	217,838	$	185,843	$	10,986	$	—	$	196,829
Mortgage - subprime		108,009		—		—		108,009		60,454		—		—		60,454
Home equity		1,050,562		8,813		—		1,059,375		991,766		8,872		—		1,000,638
Indirect automobile		346,049		2,430		—		348,479		320,148		2,818		—		322,966
Credit card		51,663		580		—		52,243		51,117		605		—		51,722
Consumer - other		248,977		1,425		—		250,402		201,161		981		—		202,142
	$	2,013,246	$	23,100	$	—	$	2,036,346	$	1,810,489	$	24,262	$	—	$	1,834,751

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.

	June 30, 2013							December 31, 2012
(Dollars in thousands)	Recorded Investment		Unpaid Principal Balance		Related Allowance			Recorded Investment		Unpaid Principal Balance		Related Allowance
With no related allowance recorded:
Commercial real estate	$	16,077	$	16,077	$	—		$	26,151	$	26,151	$	—
Commercial business		13,823		13,823		—			1,824		1,824		—
With an allowance recorded:
Commercial real estate		141		193		(52	)		3,464		3,663		(199	)
Commercial business		309		446		(137	)		1,334		1,810		(476	)
Residential prime		8,059		8,236		(177	)		9,861		10,070		(209	)
Home equity		7,013		7,057		(44	)		5,860		5,951		(91	)
Indirect automobile		1,006		1,012		(6	)		865		868		(3	)
Credit card		416		424		(8	)		413		424		(11	)
Other		345		350		(5	)		307		310		(3	)
	$	47,189	$	47,618	$	(429	)	$	50,079	$	51,071	$	(992	)
Total commercial loans		30,350		30,539		(189	)		32,773		33,448		(675	)
Total mortgage loans		8,059		8,236		(177	)		9,861		10,070		(209	)
Total consumer loans		8,780		8,843		(63	)		7,445		7,553		(108	)

	For the Three Months Ended June 30								For the Six Months Ended June 30
	2013				2012				2013				2012
(Dollars in thousands)	Average Recorded Investment		Interest Income Recognized (1)		Average Recorded Investment		Interest Income Recognized (1)		Average Recorded Investment		Interest Income Recognized (1)		Average Recorded Investment		Interest Income Recognized (1)
With no related allowance recorded:
Commercial real estate	$	21,452	$	24	$	30,999	$	20	$	22,871	$	63	$	31,888	$	58
Commercial business		10,942		17		2,693		—		6,891		73		3,951		2
With an allowance recorded:
Commercial real estate		194		—		3,275		5		306		1		3,634		15
Commercial business		447		3		242		—		449		8		244		1
Residential prime		8,613		—		6,458		—		8,913		13		6,535		16
Home equity		7,356		—		7,094		—		7,541		7		7,315		11
Indirect automobile		1,228		—		1,026		—		1,386		6		1,134		3
Credit card		448		—		374		—		427		—		399		—
Other		527		—		661		—		597		1		731		2
	$	51,207	$	44	$	52,822	$	25	$	49,381	$	172	$	55,831	$	108
Total commercial loans		33,035		44		37,209		25		30,517		145		39,717		76
Total mortgage loans		8,613		—		6,458		—		8,913		13		6,535		16
Total consumer loans		9,559		—		9,155		—		9,951		14		9,579		16

(1) Interest income recognized on impaired loans represents income recognized before loans were placed on nonaccrual status.

Acquired Loans [Member]

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

Non-covered acquired loans
	June 30, 2013													December 31, 2012
(Dollars in thousands)	Pass		Special Mention		Substandard		Doubtful		Discount			Total		Pass		Special Mention		Substandard		Doubtful		Discount			Total
Commercial real estate construction	$	18,418	$	1,522	$	4,769	$	—	$	(5,087	)	$	19,622	$	25,896	$	2,410	$	5,228	$	—	$	(3,968	)	$	29,566
Commercial real estate - other		333,965		27,220		67,523		214		(53,787	)		375,135		359,046		28,185		85,420		218		(57,055	)		415,814
Commercial business		59,016		3,520		3,499		883		(6,821	)		60,097		86,201		2,159		4,808		2,209		(12,144	)		83,233
Total	$	411,399	$	32,262	$	75,791	$	1,097	$	(65,695	)	$	454,854	$	471,143	$	32,754	$	95,456	$	2,427	$	(73,167	)	$	528,613

	Non-covered acquired loans
	June 30, 2013									December 31, 2012
	Current		30+ Days Past Due		Premium (discount)			Total		Current		30+ Days Past Due		Premium (discount)			Total
Mortgage - Prime	$	25,217	$	779	$	(1,001	)	$	24,995	$	30,663	$	779	$	1,315		$	32,757
Home equity		62,388		6,186		(6,975	)		61,599		73,658		7,115		(4,498	)		76,275
Indirect automobile		2,962		190		—			3,152		4,698		321		—			5,019
Consumer - other		15,571		1,359		(1,241	)		15,689		21,746		714		(6,805	)		15,655
	$	106,138	$	8,514	$	(9,217	)	$	105,435	$	130,765	$	8,929	$	(9,988	)	$	129,706

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 is presented in the following table. Loan discounts in the table below represent the adjustment of covered loans to fair value at the acquisition date, as adjusted for income accretion and changes in cash flow estimates in subsequent periods.

	Covered loans
	June 30, 2013											December 31, 2012
(Dollars in thousands)	Pass		Special Mention		Substandard		Doubtful		Total			Pass		Special Mention		Substandard		Doubtful		Total
Commercial real estate construction	$	45,869	$	8,478	$	50,684	$	497	$	105,528		$	46,201	$	9,888	$	97,315	$	607	$	154,011
Commercial real estate - other		171,347		62,229		221,688		7,631		462,895			201,261		65,498		279,171		8,530		554,460
Commercial business		32,737		2,245		37,872		938		73,792			38,552		8,600		50,018		451		97,621
Total	$	249,953	$	72,952	$	310,244	$	9,066	$	642,215		$	286,014	$	83,986	$	426,504	$	9,588	$	806,092
Discount										(53,098	)										(78,198	)
									$	589,117										$	727,894

	Covered loans
	June 30, 2013									December 31, 2012
	Current		30+ Days Past Due		Premium (discount)			Total		Current		30+ Days Past Due		Premium (discount)			Total
Mortgage - Prime	$	169,722	$	39,858	$	(41,926	)	$	167,654	$	183,795	$	52,379	$	(49,010	)	$	187,164
Home equity		158,896		48,580		(49,627	)		157,849		168,729		65,997		(60,514	)		174,212
Credit card		744		39		—			783		841		65		—			906
Consumer - other		941		1,465		406			2,812		1,154		1,523		(97	)		2,580
	$	330,303	$	89,942	$	(91,147	)	$	329,098	$	354,519	$	119,964	$	(109,621	)	$	364,862

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Allowance for Credit Losses and Credit Quality - Effect of Change in Methodology on Company's Unaudited Consolidated Financial Statements (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	6 Months Ended				3 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012	Dec. 31, 2011	Jun. 30, 2013 New Methodology [Member]	Jun. 30, 2013 Previous Methodology [Member]	Jun. 30, 2013 Difference of New And Previous Methodology [Member]
Loan Lease Allowance For Credit Losses Loan Activity And Report By Impairment Methodology [Line Items]
Allowance for loan losses	$ (162,903)	$ (187,285)	$ (251,603)	$ (193,761)	$ 61,599	$ 72,396	$ (10,797)
Reserve for unfunded lending commitments					10,342		10,342
Allowance for credit losses					71,941	72,396	(455)
(Reversal of) Provision for loan losses	1,569	(11,752)			(585)	384	(969)
Provision for unfunded lending commitments	(514)				514		514
Total provision for credit losses					$ (71)	$ 384	$ (455)
(Reversal of) Provision for loan losses	$ (0.02)
Provision for unfunded lending commitments	$ 0.01
Total provision for credit losses	$ (0.01)

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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	Jun. 30, 2013	Dec. 31, 2012
Acquired Indefinite-lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 46,754	$ 46,754
Accumulated Amortization	(29,058)	(26,694)
Net Carrying Amount	17,696	20,060
Mortgage Servicing Rights [Member]
Acquired Indefinite-lived Intangible Assets [Line Items]
Gross Carrying Amount	1,749	1,234
Accumulated Amortization	(458)	(304)
Net Carrying Amount	$ 1,291	$ 930

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Loans Receivable - Schedule of Subsequently Defaulted TDRs (Detail) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013 SecurityLoan	Jun. 30, 2012 SecurityLoan
TDRs Occurring During The Period [Member] | Non-Covered TDRs [Member]
Loans Receivable [Line Items]
Number of Loans	1	14
Pre-modification Outstanding Recorded Investment	$ 1,545	$ 4,100
Post-modification Outstanding Recorded Investment		3,724
TDRs That Subsequently Defaulted In Past 12 Months [Member]
Loans Receivable [Line Items]
Number of Loans	58	55
Recorded Investment	10,139	22,346
Real Estate [Member] | Commercial Loans [Member] | TDRs Occurring During The Period [Member] | Non-Covered TDRs [Member]
Loans Receivable [Line Items]
Number of Loans	1	12
Pre-modification Outstanding Recorded Investment	1,545	4,073
Post-modification Outstanding Recorded Investment		3,724
Real Estate [Member] | Commercial Loans [Member] | TDRs That Subsequently Defaulted In Past 12 Months [Member]
Loans Receivable [Line Items]
Number of Loans	48	45
Recorded Investment	8,673	20,233
Business [Member] | Commercial Loans [Member] | TDRs Occurring During The Period [Member] | Non-Covered TDRs [Member]
Loans Receivable [Line Items]
Number of Loans		1
Pre-modification Outstanding Recorded Investment		27
Post-modification Outstanding Recorded Investment
Business [Member] | Commercial Loans [Member] | TDRs That Subsequently Defaulted In Past 12 Months [Member]
Loans Receivable [Line Items]
Number of Loans	8	8
Recorded Investment	1,417	1,887
Mortgage - Prime [Member] | Residential Mortgage Loans [Member] | TDRs Occurring During The Period [Member] | Non-Covered TDRs [Member]
Loans Receivable [Line Items]
Number of Loans
Pre-modification Outstanding Recorded Investment
Post-modification Outstanding Recorded Investment
Mortgage - Prime [Member] | Residential Mortgage Loans [Member] | TDRs That Subsequently Defaulted In Past 12 Months [Member]
Loans Receivable [Line Items]
Number of Loans
Recorded Investment
Home Equity [Member] | Consumer and Other Loans [Member] | TDRs Occurring During The Period [Member] | Non-Covered TDRs [Member]
Loans Receivable [Line Items]
Number of Loans
Pre-modification Outstanding Recorded Investment
Post-modification Outstanding Recorded Investment
Home Equity [Member] | Consumer and Other Loans [Member] | TDRs That Subsequently Defaulted In Past 12 Months [Member]
Loans Receivable [Line Items]
Number of Loans	1	1
Recorded Investment	49	226
Indirect Automobile [Member] | Consumer and Other Loans [Member] | TDRs Occurring During The Period [Member] | Non-Covered TDRs [Member]
Loans Receivable [Line Items]
Number of Loans
Pre-modification Outstanding Recorded Investment
Post-modification Outstanding Recorded Investment
Indirect Automobile [Member] | Consumer and Other Loans [Member] | TDRs That Subsequently Defaulted In Past 12 Months [Member]
Loans Receivable [Line Items]
Number of Loans
Recorded Investment
Credit Card [Member] | Consumer and Other Loans [Member] | TDRs Occurring During The Period [Member] | Non-Covered TDRs [Member]
Loans Receivable [Line Items]
Number of Loans
Pre-modification Outstanding Recorded Investment
Post-modification Outstanding Recorded Investment
Credit Card [Member] | Consumer and Other Loans [Member] | TDRs That Subsequently Defaulted In Past 12 Months [Member]
Loans Receivable [Line Items]
Number of Loans
Recorded Investment
Consumer - Other [Member] | Consumer and Other Loans [Member] | TDRs Occurring During The Period [Member] | Non-Covered TDRs [Member]
Loans Receivable [Line Items]
Number of Loans		1
Pre-modification Outstanding Recorded Investment
Post-modification Outstanding Recorded Investment
Consumer - Other [Member] | Consumer and Other Loans [Member] | TDRs That Subsequently Defaulted In Past 12 Months [Member]
Loans Receivable [Line Items]
Number of Loans	1	1
Recorded Investment

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Recent Accounting Pronouncements - Additional Information (Detail) (USD $)	3 Months Ended	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2013
Accounting Policies [Abstract]
Amortization expense	$ 4,967,000	$ 10,420,000

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Loss Share Agreements and FDIC Loss Share Receivables - Additional Information (Detail) (USD $)	6 Months Ended
	Jun. 30, 2013
Receivables [Abstract]
Percentage of covered loan and foreclosed real estate losses	80.00%
Losses that exceed contractual thresholds	95.00%
Recovery period for loans	3 years
FDIC loss share receivables	$ 241,040,000
Valuation allowance against indemnification assets	$ 31,813,000

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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	6 Months Ended
	Jun. 30, 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)	$ 3,548
Change in unrealized gains (losses) relating to assets still held at June 30, 2013
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 June 30, 2013	$ (28,204)

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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	Jun. 30, 2013	Dec. 31, 2012
Fair Value Measurements [Line Items]
Loans, Assets	$ 1,465	$ 6,388
Mortgage loans held for sale, Assets	118,848	32,753
Property and equipment, Assets	6,721
OREO, Assets	24,852	20,427
Total, Assets	151,886	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
Property and equipment, Assets
OREO, Assets
Total, Assets
Significant Other Observable Inputs (Level 2) [Member]
Fair Value Measurements [Line Items]
Loans, Assets	1,465	6,388
Mortgage loans held for sale, Assets	118,848	32,753
Property and equipment, Assets	6,721
OREO, Assets	24,852	20,427
Total, Assets	151,886	59,568
Significant Unobservable Inputs (Level 3) [Member]
Fair Value Measurements [Line Items]
Loans, Assets
Mortgage loans held for sale, Assets
Property and equipment, Assets
OREO, Assets
Total, Assets

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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	Jun. 30, 2013	Dec. 31, 2012
Financial Assets
Cash and cash equivalents	$ 347,565	$ 970,977
FDIC loss share receivable	241,040	423,069
Financial Liabilities
Deposits	10,641,718	10,748,277
Short-term borrowings	289,377	303,045
Long-term debt	283,485	423,377
Carrying Amount [Member]
Financial Assets
Cash and cash equivalents	347,565	970,977
Investment securities	2,075,298	1,950,066
Loans and loans held for sale	9,065,068	8,766,055
FDIC loss share receivable	241,040	423,069
Derivative instruments	35,017	42,119
Accrued interest receivable	33,152	32,183
Financial Liabilities
Deposits	10,641,718	10,748,277
Short-term borrowings	289,377	303,045
Long-term debt	283,485	423,377
Derivative instruments	26,325	36,890
Accrued interest payable	6,057	6,615
Fair Value [Member]
Financial Assets
Cash and cash equivalents	347,565	970,977
Investment securities	2,075,410	1,956,502
Loans and loans held for sale	9,142,472	8,800,563
FDIC loss share receivable	83,235	207,222
Derivative instruments	35,017	42,119
Accrued interest receivable	33,152	32,183
Financial Liabilities
Deposits	10,244,170	10,594,885
Short-term borrowings	289,377	303,045
Long-term debt	246,367	394,490
Derivative instruments	26,325	36,890
Accrued interest payable	$ 6,057	$ 6,615

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Subsequent Events

6 Months Ended

Jun. 30, 2013

Subsequent Events [Abstract]

Subsequent Events

NOTE 18 – SUBSEQUENT EVENTS

On July 2, 2013, the Board of Governors of the Federal Reserve System approved the final Basel III capital rules. Effective January 1, 2015, the Company will be required to have a minimum common equity Tier 1 capital ratio of 4.5%, net of any deductions from regulatory capital. The rules permit the Company to include in Tier 1 Capital on a permanent basis, without any phase-out, trust preferred securities and cumulative perpetual preferred stock issued and included in Tier 1 capital prior to May 19, 2010. Effective January 1, 2016, the rules also require an initial capital conservation buffer (composed entirely of common equity Tier 1 capital) of 0.625%, in addition to the minimum common equity Tier 1 capital, with required equal annual increases to achieve a 2.5% minimum by January 1, 2019. Therefore, effective January 1, 2019, the Company is required to have a minimum common equity Tier 1 ratio plus capital conservation buffer of 7%. In addition, effective January 1, 2015, the rules increase the minimum Tier 1 Capital requirement from 4% to 6% of risk-weighted assets and establish an 8% minimum Total Capital ratio. The Company is currently assessing the impact of these rules on its operating results and financial condition.

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Consolidated Statements of Shareholders' Equity (Parenthetical) (USD $)	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Cash dividends declared per share	$ 0.68	$ 0.68
Retained Earnings [Member]
Cash dividends declared per share	$ 0.68	$ 0.68

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Basis of Presentation

6 Months Ended

Jun. 30, 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 consolidated 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 the Company and its wholly owned subsidiaries, IBERIABANK, Lenders Title Company (“LTC”), IBERIA Capital Partners L.L.C. (“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 the Company’s commercial and single family residential indemnification agreements are five years 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 assets. 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 amount collectible from the FDIC 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 the 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.

A claim receivable is established within other assets when a loss is incurred and the indemnification asset is reduced 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 June 30, 2013, the Company has $162,031,000 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 are included in Note 16.

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 (OREO)

Fair values of OREO at June 30, 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 $1,402,000 and $1,477,000 in earnings for the three months ended June 30, 2013 and 2012, respectively, and $2,556,000 and $4,033,000 for the six months ended June 30, 2013 and 2012, respectively.

Derivative financial instruments

The Company may utilize 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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Disposition Activity

6 Months Ended

Jun. 30, 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. During the second quarter of 2013, the Company announced plans to close or consolidate ten additional branches. As part of these branch closures, the Company incurred various disposal costs during the three and six months ended June 30, 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 statements of comprehensive income for the periods indicated.

	For the Three Months Ended		For the Six Months Ended
(Dollars in thousands)	June 30, 2013		June 30, 2013
Employee termination	$	314	$	369
Accelerated depreciation		306		681
Impairment		4,618		4,618
	$	5,238	$	5,668

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

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Goodwill and Other Acquired Intangible Assets - Schedule of Carrying Amount of Goodwill (Detail) (USD $) In Thousands, unless otherwise specified	6 Months Ended	12 Months Ended
	Jun. 30, 2013	Dec. 31, 2012
Goodwill And Intangible Assets Disclosure [Abstract]
Beginning Balance	$ 401,872	$ 369,811
Goodwill acquired during the period		32,420
Goodwill adjustment to correct an immaterial error		(359)
Ending Balance	$ 401,872	$ 401,872

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Recent Accounting Pronouncements

6 Months Ended

Jun. 30, 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 for the three- and six-month periods ended June 30, 2013 by $4,967,000 and $10,420,000, respectively, 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 on the Company’s consolidated financial statements for the three months ended June 30, 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 statements 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 13 in these unaudited consolidated financial statements.

ASU No. 2011-11 and ASU No. 2013-01

In the first quarter of 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 resulted in additional disclosures incorporated in Note 12 of these unaudited consolidated financial statements.

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Fair Value of Financial Instruments (Tables)

6 Months Ended

Jun. 30, 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:

	June 30, 2013				December 31, 2012
(Dollars in thousands)	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Financial Assets
Cash and cash equivalents	$	347,565	$	347,565	$	970,977	$	970,977
Investment securities		2,075,298		2,075,410		1,950,066		1,956,502
Loans and loans held for sale		9,065,068		9,142,472		8,766,055		8,800,563
FDIC loss share receivable		241,040		83,235		423,069		207,222
Derivative instruments		35,017		35,017		42,119		42,119
Accrued interest receivable		33,152		33,152		32,183		32,183
Financial Liabilities
Deposits	$	10,641,718	$	10,244,170	$	10,748,277	$	10,594,885
Short-term borrowings		289,377		289,377		303,045		303,045
Long-term debt		283,485		246,367		423,377		394,490
Derivative instruments		26,325		26,325		36,890		36,890
Accrued interest payable		6,057		6,057		6,615		6,615

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Disposition Activity (Tables)

6 Months Ended

Jun. 30, 2013

Text Block [Abstract]

Schedule of Branch Closure Costs

The following table shows the costs the Company incurred that are included in its statements of comprehensive income for the periods indicated.

	For the Three Months Ended		For the Six Months Ended
(Dollars in thousands)	June 30, 2013		June 30, 2013
Employee termination	$	314	$	369
Accelerated depreciation		306		681
Impairment		4,618		4,618
	$	5,238	$	5,668

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Loss Share Agreements and FDIC Loss Share Receivable (Tables)

6 Months Ended

Jun. 30, 2013

Text Block [Abstract]

Schedule of FDIC Loss Share Receivable

The following is a summary of FDIC loss share receivable year-to-date activity:

	Six Months Ended June 30
(Dollars in thousands)	2013			2012
Balance at beginning of period	$	423,069		$	591,844
Change due to (reversal of) credit loss provision recorded on FDIC covered loans		(55,085	)		10,633
Amortization		(45,831	)		(56,411	)
Submission of reimburseable losses to the FDIC		(42,043	)		(72,527	)
Impairment		(31,813	)		—
Changes due to a change in cash flow assumptions on OREO and other		(7,257	)		(3,616	)
Balance at end of period	$	241,040		$	469,923

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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		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Mortgage Loan Activity [Line Items]
Balance at beginning of period			$ 267,475
Originations			1,207,676
Sales			(1,350,910)
Balance at end of period	162,031		162,031
Gains on sales			37,790
Total mortgage income	17,708	18,185	36,639	31,903
Mortgage Loans Held for Sale [Member]
Mortgage Loan Activity [Line Items]
Balance at beginning of period			267,475	153,013
Originations			1,207,676	1,042,020
Sales			(1,313,120)	(1,014,464)
Balance at end of period	162,031	180,569	162,031	180,569
Mortgage Income [Member]
Mortgage Loan Activity [Line Items]
Fair value changes of derivatives and mortgage loans held for sale, net			(1,431)	1,717
Gains on sales			37,790	29,980
Servicing and other income, net			280	206
Total mortgage income			$ 36,639	$ 31,903

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Other Comprehensive Income (Tables)

6 Months Ended

Jun. 30, 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 periods indicated:

	Three Months Ended June 30, 2013
(Dollars in thousands)	Before     Tax			Tax Expense     (Benefit)			Net-of-Tax     Amount
Unrealized gain on securities:
Unrealized holding losses arising during the period	$	(42,303	)	$	14,806		$	(27,497	)
Less: reclassification adjustment for losses included in net income		66			(23	)		43
Net unrealized losses		(42,237	)		14,783			(27,454	)
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	$	(1,121	)	$	392		$	(729	)
Less: reclassification adjustment for gains included in net income		(33	)		12			(21	)
Fair value of derivative instruments designated as cash flow hedges		(1,154	)		404			(750	)
Total other comprehensive income (loss)	$	(43,391	)	$	15,187		$	(28,204	)

	Three Months Ended June 30, 2012
(Dollars in thousands)	Before     Tax			Tax Expense     (Benefit)			Net-of-Tax     Amount
Unrealized gain on securities:
Unrealized holding gains arising during the period	$	3,195		$	(1,118	)	$	2,077
Less: reclassification adjustment for gains included in net income		(901	)		315			(586	)
Net unrealized gains		2,294			(803	)		1,491
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	$	(7,634	)	$	2,672		$	(4,962	)
Less: reclassification adjustment for losses included in net income		400			(140	)		260
Fair value of derivative instruments designated as cash flow hedges		(7,234	)		2,532			(4,702	)
Total other comprehensive income (loss)	$	(4,940	)	$	1,729		$	(3,211	)

	Six Months Ended June 30, 2013
(Dollars in thousands)	Before     Tax			Tax Expense     (Benefit)			Net-of-Tax     Amount
Unrealized gain on securities:
Unrealized holding losses arising during the period	$	(44,297	)	$	15,504		$	(28,793	)
Less: reclassification adjustment for gains included in net income		(2,261	)		791			(1,470	)
Net unrealized losses		(46,558	)		16,295			(30,263	)
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	$	952		$	(333	)	$	619
Less: reclassification adjustment for losses included in net income		392			(137	)		255
Fair value of derivative instruments designated as cash flow hedges		1,344			(470	)		874
Total other comprehensive income (loss)	$	(45,214	)	$	15,825		$	(29,389	)

	Six Months Ended June 30, 2012
(Dollars in thousands)	Before     Tax			Tax Expense     (Benefit)			Net-of-Tax     Amount
Unrealized gain on securities:
Unrealized holding gains arising during the period	$	2,139		$	(749	)	$	1,390
Less: reclassification adjustment for gains included in net income		(3,702	)		1,296			(2,406	)
Net unrealized losses		(1,563	)		547			(1,016	)
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	$	(2,683	)	$	939		$	(1,744	)
Less: reclassification adjustment for losses included in net income		786			(275	)		511
Fair value of derivative instruments designated as cash flow hedges		(1,897	)		664			(1,233	)
Total other comprehensive income (loss)	$	(3,460	)	$	1,211		$	(2,249	)

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Loss Share Agreements and FDIC Loss Share Receivables - Schedule of FDIC Loss Share Receivable (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
FDIC Loss Share Receivable [Line Items]
Balance			$ 423,069
Amortization	(18,130)	(28,484)	(45,831)	(56,411)
Impairment			31,813
Balance	241,040		241,040
FDIC Loss Share Receivable [Member]
FDIC Loss Share Receivable [Line Items]
Balance			423,069	591,844
Change due to (reversal of) credit loss provision recorded on FDIC covered loans			(55,085)	10,633
Amortization			(45,831)	(56,411)
Submission of reimbursable losses to the FDIC			(42,043)	(72,527)
Impairment			(31,813)
Changes due to a change in cash flow assumptions on OREO and other			(7,257)	(3,616)
Balance	$ 241,040	$ 469,923	$ 241,040	$ 469,923

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Fair Value Measurements - Additional Information (Detail) (USD $)	6 Months Ended
	Jun. 30, 2013	Dec. 31, 2012
Fair Value Disclosures [Abstract]
Impaired non-covered loans with an outstanding balance	$ 1,791,000	$ 7,269,000
Reserve in allowance for credit losses	326,000	880,000
Asset impairment loss	4,618,000
Book value of company owned branches after impairment loss	$ 6,721,000

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Loans Receivable - Schedule of Loans Receivable (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Loans Receivable [Line Items]
Total loans receivable	$ 8,903,037	$ 8,498,580
Commercial Loans [Member]
Loans Receivable [Line Items]
Total loans receivable	6,432,158	6,169,261
Commercial Loans [Member] | Real Estate [Member]
Loans Receivable [Line Items]
Total loans receivable	3,744,238	3,631,543
Commercial Loans [Member] | Business [Member]
Loans Receivable [Line Items]
Total loans receivable	2,687,920	2,537,718
Residential Mortgage Loans [Member]
Loans Receivable [Line Items]
Total loans receivable	518,496	477,204
Residential Mortgage Loans [Member] | Residential 1-4 Family [Member]
Loans Receivable [Line Items]
Total loans receivable	513,752	471,183
Residential Mortgage Loans [Member] | Construction/ Owner Occupied [Member]
Loans Receivable [Line Items]
Total loans receivable	4,744	6,021
Consumer and Other Loans [Member]
Loans Receivable [Line Items]
Total loans receivable	1,952,383	1,852,115
Consumer and Other Loans [Member] | Home Equity [Member]
Loans Receivable [Line Items]
Total loans receivable	1,278,823	1,251,125
Consumer and Other Loans [Member] | Indirect Automobile [Member]
Loans Receivable [Line Items]
Total loans receivable	351,631	327,985
Consumer and Other Loans [Member] | Consumer - Other [Member]
Loans Receivable [Line Items]
Total loans receivable	321,929	273,005
Non-Covered Loans [Member]
Loans Receivable [Line Items]
Total loans receivable	7,984,822	7,405,824
Non-Covered Loans [Member] | Commercial Loans [Member]
Loans Receivable [Line Items]
Total loans receivable	5,843,041	5,441,367
Non-Covered Loans [Member] | Commercial Loans [Member] | Real Estate [Member]
Loans Receivable [Line Items]
Total loans receivable	3,224,078	2,990,700
Non-Covered Loans [Member] | Commercial Loans [Member] | Business [Member]
Loans Receivable [Line Items]
Total loans receivable	2,618,963	2,450,667
Non-Covered Loans [Member] | Residential Mortgage Loans [Member]
Loans Receivable [Line Items]
Total loans receivable	350,842	290,040
Non-Covered Loans [Member] | Residential Mortgage Loans [Member] | Residential 1-4 Family [Member]
Loans Receivable [Line Items]
Total loans receivable	346,098	284,019
Non-Covered Loans [Member] | Residential Mortgage Loans [Member] | Construction/ Owner Occupied [Member]
Loans Receivable [Line Items]
Total loans receivable	4,744	6,021
Non-Covered Loans [Member] | Consumer and Other Loans [Member]
Loans Receivable [Line Items]
Total loans receivable	1,790,939	1,674,417
Non-Covered Loans [Member] | Consumer and Other Loans [Member] | Home Equity [Member]
Loans Receivable [Line Items]
Total loans receivable	1,120,974	1,076,913
Non-Covered Loans [Member] | Consumer and Other Loans [Member] | Indirect Automobile [Member]
Loans Receivable [Line Items]
Total loans receivable	351,631	327,985
Non-Covered Loans [Member] | Consumer and Other Loans [Member] | Consumer - Other [Member]
Loans Receivable [Line Items]
Total loans receivable	318,334	269,519
Covered Loans [Member]
Loans Receivable [Line Items]
Total loans receivable	918,215	1,092,756
Covered Loans [Member] | Commercial Loans [Member]
Loans Receivable [Line Items]
Total loans receivable	589,117	727,894
Covered Loans [Member] | Commercial Loans [Member] | Real Estate [Member]
Loans Receivable [Line Items]
Total loans receivable	520,160	640,843
Covered Loans [Member] | Commercial Loans [Member] | Business [Member]
Loans Receivable [Line Items]
Total loans receivable	68,957	87,051
Covered Loans [Member] | Residential Mortgage Loans [Member]
Loans Receivable [Line Items]
Total loans receivable	167,654	187,164
Covered Loans [Member] | Residential Mortgage Loans [Member] | Residential 1-4 Family [Member]
Loans Receivable [Line Items]
Total loans receivable	167,654	187,164
Covered Loans [Member] | Consumer and Other Loans [Member]
Loans Receivable [Line Items]
Total loans receivable	161,444	177,698
Covered Loans [Member] | Consumer and Other Loans [Member] | Home Equity [Member]
Loans Receivable [Line Items]
Total loans receivable	157,849	174,212
Covered Loans [Member] | Consumer and Other Loans [Member] | Consumer - Other [Member]
Loans Receivable [Line Items]
Total loans receivable	$ 3,595	$ 3,486

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Investment Securities - Additional Information (Detail) (USD $)	6 Months Ended	12 Months Ended
	Jun. 30, 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	$ 1,400,204,000	$ 1,712,860,000
Number of debt securities, held	160	49
Unrealized losses on debt securities, percent of amortized cost	2.51%	0.85%
Unrealized losses on debt securities, percent of Company's total amortized cost	1.41%	0.12%
Number of debt securities having unrealized losses	160	49
Number of securities recorded with an aggregate amortized cost	4	3
Number of securities, continuous unrealized loss position, twelve months or longer, fair value	4	3
Available-for-sale securities, amortized cost basis	18,523,000	5,200,000
Unrealized loss on securities	$ 660,000	$ 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 [Member]
Schedule of Securities Available-for-sale And Held To Maturity [Line Items]
Number of securities issued	4	3
Fannie Mae And Freddie Mac Securities Rated AAA [Member] | Minimum [Member]
Schedule of Securities Available-for-sale And Held To Maturity [Line Items]
Number of securities issued	2	2

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Earnings Per Share - Schedule of Calculation of Basic and Diluted Earnings Per Share (Parenthetical) (Detail)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Earnings Per Share [Abstract]
Weighted average basic shares outstanding, unvested restricted stock	567,162	563,882	565,860	549,479

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Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Statement Of Financial Position [Abstract]
Securities held to maturity, fair values	$ 163,352	$ 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	2,207,327	2,427,640

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Allowance for Credit Losses and Credit Quality

6 Months Ended

Jun. 30, 2013

Receivables [Abstract]

Allowance for Credit Losses and Credit Quality

NOTE 7 – ALLOWANCE FOR CREDIT LOSSES AND CREDIT QUALITY

Change in Methodology

During the three months ended June 30, 2013, the Company modified its methodology for estimating its allowance for credit losses on its non-covered, non-acquired loan portfolio to incorporate practices, processes, and methodologies consistent with the guidance provided in the Office of the Comptroller of Currency’s (“OCC”) inter-agency policy statement 2006 SR 06-17. The methodology was modified to segregate the reserve for unfunded lending commitments (“RULC”), previously included in the Company’s allowance for credit losses, into a separate liability on the Company’s balance sheet, and to enhance the existing methodology around loss migration.

As part of the modification, the Company’s calculation of its allowance for credit losses incorporates a new loss migration model designed by the Company to improve its estimates of credit losses by:

• Providing a greater degree of segmentation of the Company’s non-covered, non-acquired loan portfolio within its existing homogeneous pools with distinct risk characteristics

• Improving the application of the Company’s specific historical loss rates to effectively generate estimated incurred loss rates for these various pools of the loan portfolio, and

• Facilitating future loan portfolio stress testing.

The following changes were made from the Company’s previous methodology utilized through the three months ended March 31, 2013:

• Segregation of the RULC noted above

• Creation of a transition matrix-based model that calculates current incurred loss estimates based on Company-specific history of risk rating changes and net charge-offs across multiple loan pools in its portfolio, and

• Elimination of the use of published available expected default frequencies (“EDFs”) adjusted for the Company’s experience in estimating losses in the Company’s commercial real estate and business loan portfolios.

The following table presents the effect of the change in methodology on the Company’s unaudited consolidated financial statements as of and for the three months ended June 30, 2013.

(Dollars in thousands)	New Methodology			Previous Methodology		Difference			Per Share Difference
Selected Data
Allowance for loan losses	$	61,599		$	72,396	$	(10,797	)
Reserve for unfunded lending commitments		10,342			—		10,342
Allowance for credit losses	$	71,941		$	72,396	$	(455	)
(Reversal of) Provision for loan losses	$	(585	)	$	384	$	(969	)	$	(0.02	)
Provision for unfunded lending commitments		514			—		514			0.01
Total provision for credit losses	$	(71	)	$	384	$	(455	)	$	(0.01	)

Allowance for Credit Losses Activity

A summary of changes in the allowance for credit losses for the covered loan and non-covered loan portfolios is as follows.

	June 30, 2013
	Non-covered loans
(Dollars in thousands)	Excluding Acquired Loans			Acquired Loans			Covered Loans			Total
Allowance for loan losses
Balance, beginning of period	$	74,211		$	8,816		$	168,576		$	251,603
(Reversal of) Provision for loan losses before benefit attributable to FDIC loss share agreements		(585	)		(1,009	)		(55,060	)		(56,654	)
Adjustment attributable to FDIC loss share arrangements		—			—			55,085			55,085
Net (reversal of) provision for loan losses		(585	)		(1,009	)		25			(1,569	)
Decrease in FDIC loss share receivable		—			—			(55,085	)		(55,085	)
Transfer of balance to OREO		—			(973	)		(16,712	)		(17,685	)
Transfer of balance to the RUFC		(9,828	)		—			—			(9,828	)
Loans charged-off		(4,249	)		—			(2,334	)		(6,583	)
Recoveries		2,050			—			—			2,050
Balance, end of period	$	61,599		$	6,834		$	94,470		$	162,903
Reserve for unfunded lending commitments
Balance, beginning of period	$	—		$	—		$	—		$	—
Transfer of balance from the allowance for loan losses		9,828			—			—			9,828
Provision for unfunded lending commitments		514			—			—			514
Balance, end of period	$	10,342		$	—		$	—		$	10,342

	June 30, 2012
	Non-covered loans
	Excluding Acquired Loans			Acquired Loans			Covered Loans			Total
Allowance for loan losses
Balance, beginning of period	$	74,861		$	—		$	118,900		$	193,761
(Reversal of) Provision for loan losses before benefit attributable to FDIC loss share agreements		5,277			4,293			12,815			22,385
Adjustment attributable to FDIC loss share arrangements		—			—			(10,633	)		(10,633	)
Net (reversal of) provision for loan losses		5,277			4,293			2,182			11,752
Increase in FDIC loss share receivable		—			—			10,633			10,633
Transfer of balance to OREO		—			(308	)		(12,689	)		(12,997	)
Loans charged-off		(4,218	)		(179	)		(13,283	)		(17,680	)
Recoveries		1,775			22			19			1,816
Balance, end of period	$	77,695		$	3,828		$	105,762		$	187,285

A summary of changes in the allowance for credit losses for non-covered loans, by loan portfolio type, is as follows:

	June 30, 2013
(Dollars in thousands)	Commercial real estate			Commercial business			Mortgage			Consumer			Unallocated		Total
Allowance for loan losses
Balance at beginning of period	$	38,264		$	28,721		$	2,125		$	13,917		$	—	$	83,027
(Reversal of) Provision for loan losses		(7,459	)		557			2,961			2,347			—		(1,594	)
Transfer of balance to OREO		(264	)		(90	)		(612	)		(7	)		—		(973	)
Transfer of balance to the RUFC		(2,939	)		(3,497	)		(40	)		(3,352	)		—		(9,828	)
Loans charged off		(807	)		(395	)		(2,603	)		(444	)		—		(4,249	)
Recoveries		500			259			188			1,103			—		2,050
Balance at end of period	$	27,295		$	25,555		$	2,019		$	13,564		$	—	$	68,433
Reserve for unfunded commitments
Balance at beginning of period	$	—		$	—		$	—		$	—		$	—	$	—
Transfer of balance from the allowance for loan losses		2,939			3,497			40			3,352			—		9,828
Provision for unfunded commitments		545			12			—			(43	)		—		514
Balance at end of period	$	3,484		$	3,509		$	40		$	3,309		$	—	$	10,342
Allowance on loans individually evaluated for impairment	$	72		$	116		$	137		$	—		$	—	$	325
Allowance on loans collectively evaluated for impairment		27,223			25,439			1,882			13,564			—		68,108
Loans, net of unearned income:
Balance at end of period	$	3,224,078		$	2,618,963		$	350,842		$	1,790,939		$	—	$	7,984,822
Balance at end of period individually evaluated for impairment		16,525			14,014			1,152			267			—		31,958
Balance at end of period collectively evaluated for impairment		3,207,553			2,604,949			349,690			1,790,672			—		7,952,864
Balance at end of period acquired with deteriorated credit quality		40,015			3,468			383			3,287			—		47,153

	June 30, 2012
(Dollars in thousands)	Commercial real estate			Commercial business			Mortgage			Consumer			Unallocated		Total
Allowance for credit losses
Balance at beginning of period	$	35,604		$	25,705		$	897		$	12,655		$	—	$	74,861
(Reversal of) Provision for loan losses		2,320			4,576			712			1,962			—		9,570
Transfer of balance to OREO		(76	)		—			(226	)		(6	)		—		(308	)
Loans charged off		(1,154	)		(435	)		(246	)		(2,562	)		—		(4,397	)
Recoveries		654			61			21			1,061			—		1,797
Balance at end of period	$	37,348		$	29,907		$	1,158		$	13,110		$	—	$	81,523
Allowance on loans individually evaluated for impairment	$	1,307		$	201		$	187		$	—		$	—	$	1,695
Allowance on loans collectively evaluated for impairment		36,041			29,706			971			13,110			—		79,828
Loans, net of unearned income:
Balance at end of period	$	2,660,509		$	2,180,479		$	235,221		$	1,470,156		$	—	$	6,546,365
Balance at end of period individually evaluated for impairment		28,841			2,402			1,612			226			—		33,081
Balance at end of period collectively evaluated for impairment		2,631,668			2,178,077			233,609			1,469,930			—		6,513,284
Balance at end of period acquired with deteriorated credit quality		34,650			560			—			4,971			—		40,181

A summary of changes in the allowance for credit losses for covered loans, by loan portfolio type, is as follows:

	June 30, 2013
(Dollars in thousands)	Commercial       real estate			Commercial     business			Mortgage			Consumer			Unallocated		Total
Allowance for loan losses
Balance at beginning of period	$	100,871		$	11,375		$	22,566		$	33,764		$	—	$	168,576
(Reversal of) Provision for loan losses		27			—			(1	)		(1	)		—		25
(Decrease) Increase in FDIC loss share receivable		(26,737	)		(2,672	)		(7,073	)		(18,603	)		—		(55,085	)
Transfer of balance to OREO		(12,178	)		(314	)		(4,221	)		1			—		(16,712	)
Loans charged off		(2,334	)		—			—			—			—		(2,334	)
Balance at end of period	$	59,649		$	8,389		$	11,271		$	15,161		$	—	$	94,470
Allowance on loans individually evaluated for impairment	$	—		$	—		$	—		$	—		$	—	$	—
Allowance on loans collectively evaluated for impairment		59,649			8,389			11,271			15,161			—		94,470
Loans, net of unearned income:
Balance at end of period	$	520,160		$	68,957		$	167,654		$	161,444		$	—	$	918,215
Balance at end of period individually evaluated for impairment		—			—			—			—			—		—
Balance at end of period collectively evaluated for impairment		520,160			68,957			167,654			161,444			—		918,215
Balance at end of period acquired with deteriorated credit quality		132,565			2,005			17,969			19,504			—		172,043

	June 30, 2012
(Dollars in thousands)	Commercial       real estate			Commercial     business			Mortgage			Consumer			Unallocated		Total
Allowance for credit losses
Balance at beginning of period	$	69,175		$	9,788		$	21,184		$	18,753		$	—	$	118,900
(Reversal of) Provision for loan losses		2,821			848			(1,549	)		62			—		2,182
(Decrease) Increase in FDIC loss share receivable		11,238			1,097			1,354			(3,056	)		—		10,633
Transfer of balance to OREO		(8,545	)		(119	)		(3,200	)		(825	)		—		(12,689	)
Loans charged off		(13,143	)		—			(131	)		(9	)		—		(13,283	)
Recoveries		16			—			—			3			—		19
Balance at end of period	$	61,562		$	11,614		$	17,658		$	14,928		$	—	$	105,762
Allowance on loans individually evaluated for impairment	$	—		$	—		$	—		$	—		$	—	$	—
Allowance on loans collectively evaluated for impairment		61,562			11,614			17,658			14,928			—		105,762
Loans, net of unearned income:
Balance at end of period	$	653,354		$	125,681		$	183,568		$	227,544		$	—	$	1,190,147
Balance at end of period individually evaluated for impairment		—			—			—			—			—		—
Balance at end of period collectively evaluated for impairment		653,354			125,681			183,568			227,544			—		1,190,147
Balance at end of period acquired with deteriorated credit quality		170,803			3,842			29,303			24,402			—		228,350

Credit Quality

The Company’s investment in non-covered loans by credit quality indicator is presented in the following tables. Because of the difference in accounting for acquired loans, the tables below further segregate the Company’s non-covered loans receivable between acquired loans and loans that were not acquired. Loan discounts in the tables below represent the adjustment of non-covered acquired loans to fair value at the acquisition date, 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 June 30, 2013 and December 31, 2012.

	Non-covered loans excluding acquired loans
	June 30, 2013												December 31, 2012
(Dollars in thousands)	Pass		Special Mention		Substandard		Doubtful		Discount		Total		Pass		Special Mention		Substandard		Doubtful		Discount		Total
Commercial real estate construction	$	304,045	$	15,414	$	5,961	$	—	$	—	$	325,420	$	269,842	$	16,767	$	7,067	$	—	$	—	$	293,676
Commercial real estate - other		2,442,277		31,860		29,643		121		—		2,503,901		2,162,989		40,547		47,710		398		—		2,251,644
Commercial business		2,494,656		18,552		44,600		1,058		—		2,558,866		2,295,788		21,640		49,958		48		—		2,367,434
Total	$	5,240,978	$	65,826	$	80,204	$	1,179	$	—		5,388,187	$	4,728,619	$	78,954	$	104,735	$	446	$	—	$	4,912,754

	Non-covered loans excluding acquired loans
	June 30, 2013								December 31, 2012
	Current		30+ Days Past Due		Premium (discount)		Total		Current		30+ Days Past Due		Premium (discount)		Total
Mortgage - Prime	$	207,986	$	9,852	$	—	$	217,838	$	185,843	$	10,986	$	—	$	196,829
Mortgage - subprime		108,009		—		—		108,009		60,454		—		—		60,454
Home equity		1,050,562		8,813		—		1,059,375		991,766		8,872		—		1,000,638
Indirect automobile		346,049		2,430		—		348,479		320,148		2,818		—		322,966
Credit card		51,663		580		—		52,243		51,117		605		—		51,722
Consumer - other		248,977		1,425		—		250,402		201,161		981		—		202,142
	$	2,013,246	$	23,100	$	—	$	2,036,346	$	1,810,489	$	24,262	$	—	$	1,834,751

	Non-covered acquired loans
	June 30, 2013													December 31, 2012
(Dollars in thousands)	Pass		Special Mention		Substandard		Doubtful		Discount			Total		Pass		Special Mention		Substandard		Doubtful		Discount			Total
Commercial real estate construction	$	18,418	$	1,522	$	4,769	$	—	$	(5,087	)	$	19,622	$	25,896	$	2,410	$	5,228	$	—	$	(3,968	)	$	29,566
Commercial real estate - other		333,965		27,220		67,523		214		(53,787	)		375,135		359,046		28,185		85,420		218		(57,055	)		415,814
Commercial business		59,016		3,520		3,499		883		(6,821	)		60,097		86,201		2,159		4,808		2,209		(12,144	)		83,233
Total	$	411,399	$	32,262	$	75,791	$	1,097	$	(65,695	)	$	454,854	$	471,143	$	32,754	$	95,456	$	2,427	$	(73,167	)	$	528,613

	Non-covered acquired loans
	June 30, 2013									December 31, 2012
	Current		30+ Days Past Due		Premium (discount)			Total		Current		30+ Days Past Due		Premium (discount)			Total
Mortgage - Prime	$	25,217	$	779	$	(1,001	)	$	24,995	$	30,663	$	779	$	1,315		$	32,757
Home equity		62,388		6,186		(6,975	)		61,599		73,658		7,115		(4,498	)		76,275
Indirect automobile		2,962		190		—			3,152		4,698		321		—			5,019
Consumer - other		15,571		1,359		(1,241	)		15,689		21,746		714		(6,805	)		15,655
	$	106,138	$	8,514	$	(9,217	)	$	105,435	$	130,765	$	8,929	$	(9,988	)	$	129,706

Credit quality information in the table above includes loans acquired at the gross loan balance, prior to the application of discounts, at June 30, 2013 and December 31, 2012.

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

	Covered loans
	June 30, 2013											December 31, 2012
(Dollars in thousands)	Pass		Special Mention		Substandard		Doubtful		Total			Pass		Special Mention		Substandard		Doubtful		Total
Commercial real estate construction	$	45,869	$	8,478	$	50,684	$	497	$	105,528		$	46,201	$	9,888	$	97,315	$	607	$	154,011
Commercial real estate - other		171,347		62,229		221,688		7,631		462,895			201,261		65,498		279,171		8,530		554,460
Commercial business		32,737		2,245		37,872		938		73,792			38,552		8,600		50,018		451		97,621
Total	$	249,953	$	72,952	$	310,244	$	9,066	$	642,215		$	286,014	$	83,986	$	426,504	$	9,588	$	806,092
Discount										(53,098	)										(78,198	)
									$	589,117										$	727,894

	Covered loans
	June 30, 2013									December 31, 2012
	Current		30+ Days Past Due		Premium (discount)			Total		Current		30+ Days Past Due		Premium (discount)			Total
Mortgage - Prime	$	169,722	$	39,858	$	(41,926	)	$	167,654	$	183,795	$	52,379	$	(49,010	)	$	187,164
Home equity		158,896		48,580		(49,627	)		157,849		168,729		65,997		(60,514	)		174,212
Credit card		744		39		—			783		841		65		—			906
Consumer - other		941		1,465		406			2,812		1,154		1,523		(97	)		2,580
	$	330,303	$	89,942	$	(91,147	)	$	329,098	$	354,519	$	119,964	$	(109,621	)	$	364,862

Impaired Loans

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

	June 30, 2013							December 31, 2012
(Dollars in thousands)	Recorded Investment		Unpaid Principal Balance		Related Allowance			Recorded Investment		Unpaid Principal Balance		Related Allowance
With no related allowance recorded:
Commercial real estate	$	16,077	$	16,077	$	—		$	26,151	$	26,151	$	—
Commercial business		13,823		13,823		—			1,824		1,824		—
With an allowance recorded:
Commercial real estate		141		193		(52	)		3,464		3,663		(199	)
Commercial business		309		446		(137	)		1,334		1,810		(476	)
Residential prime		8,059		8,236		(177	)		9,861		10,070		(209	)
Home equity		7,013		7,057		(44	)		5,860		5,951		(91	)
Indirect automobile		1,006		1,012		(6	)		865		868		(3	)
Credit card		416		424		(8	)		413		424		(11	)
Other		345		350		(5	)		307		310		(3	)
	$	47,189	$	47,618	$	(429	)	$	50,079	$	51,071	$	(992	)
Total commercial loans		30,350		30,539		(189	)		32,773		33,448		(675	)
Total mortgage loans		8,059		8,236		(177	)		9,861		10,070		(209	)
Total consumer loans		8,780		8,843		(63	)		7,445		7,553		(108	)

	For the Three Months Ended June 30								For the Six Months Ended June 30
	2013				2012				2013				2012
(Dollars in thousands)	Average Recorded Investment		Interest Income Recognized (1)		Average Recorded Investment		Interest Income Recognized (1)		Average Recorded Investment		Interest Income Recognized (1)		Average Recorded Investment		Interest Income Recognized (1)
With no related allowance recorded:
Commercial real estate	$	21,452	$	24	$	30,999	$	20	$	22,871	$	63	$	31,888	$	58
Commercial business		10,942		17		2,693		—		6,891		73		3,951		2
With an allowance recorded:
Commercial real estate		194		—		3,275		5		306		1		3,634		15
Commercial business		447		3		242		—		449		8		244		1
Residential prime		8,613		—		6,458		—		8,913		13		6,535		16
Home equity		7,356		—		7,094		—		7,541		7		7,315		11
Indirect automobile		1,228		—		1,026		—		1,386		6		1,134		3
Credit card		448		—		374		—		427		—		399		—
Other		527		—		661		—		597		1		731		2
	$	51,207	$	44	$	52,822	$	25	$	49,381	$	172	$	55,831	$	108
Total commercial loans		33,035		44		37,209		25		30,517		145		39,717		76
Total mortgage loans		8,613		—		6,458		—		8,913		13		6,535		16
Total consumer loans		9,559		—		9,155		—		9,951		14		9,579		16

(1) Interest income recognized on impaired loans represents income recognized before loans were placed on nonaccrual status.

As of June 30, 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.

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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 (Loss) [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	31,953			31,953
Other comprehensive loss	(2,249)				(2,249)
Cash dividends declared, $0.68 per share	(20,066)			(20,066)
Reissuance of treasury stock under incentive plan, net of shares surrendered in payment, including tax benefit	154		(515)			669
Reissuance of treasury stock under incentive plan, shares						(171,310)
Common stock issued for recognition and retention plan			(7,420)			7,420
Share-based compensation cost	4,897		4,897
Treasury stock acquired at cost	(2,310)					(2,310)
Treasury stock acquired at cost, Shares						48,188
Ending balance at Jun. 30, 2012	1,495,040	31,163	1,132,842	387,071	22,208	(78,244)
Ending balance, shares at Jun. 30, 2012		31,163,070				1,666,043
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	16,307			16,307
Other comprehensive loss	(29,389)				(29,389)
Cash dividends declared, $0.68 per share	(20,197)			(20,197)
Reissuance of treasury stock under incentive plan, net of shares surrendered in payment, including tax benefit	2,911		(1,120)			4,031
Reissuance of treasury stock under incentive plan, shares						(220,313)
Common stock issued for recognition and retention plan			(7,962)			7,962
Share-based compensation cost	5,261		5,261
Ending balance at Jun. 30, 2013	$ 1,504,761	$ 31,917	$ 1,172,359	$ 407,582	$ (4,912)	$ (102,185)
Ending balance, shares at Jun. 30, 2013		31,917,385				2,207,327

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Loans Receivable - Schedule of Non-Covered Loans on Nonaccrual Status (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans on nonaccrual status	$ 49,106	$ 47,916
Commercial Loans [Member] | Commercial Real Estate Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans on nonaccrual status	4,533	5,479
Commercial Loans [Member] | Commercial Real Estate - Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans on nonaccrual status	13,728	23,475
Commercial Loans [Member] | Business [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans on nonaccrual status	14,028	3,358
Residential Mortgage Loans [Member] | Mortgage - Prime [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans on nonaccrual status	7,974	8,367
Consumer and Other Loans [Member] | Home Equity [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans on nonaccrual status	7,057	5,635
Consumer and Other Loans [Member] | Indirect Automobile [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans on nonaccrual status	1,012	868
Consumer and Other Loans [Member] | Credit Card [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans on nonaccrual status	424	424
Consumer and Other Loans [Member] | Consumer - Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans on nonaccrual status	$ 350	$ 310

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Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Assets
Cash and due from banks	$ 227,114	$ 248,214
Interest-bearing deposits in banks	120,451	722,763
Total cash and cash equivalents	347,565	970,977
Securities available for sale, at fair value	1,912,058	1,745,004
Securities held to maturity, fair values of $163,352 and $211,498, respectively	163,240	205,062
Mortgage loans held for sale	162,031	267,475
Loans covered by loss share agreements	918,215	1,092,756
Non-covered loans, net of unearned income	7,984,822	7,405,824
Total loans, net of unearned income	8,903,037	8,498,580
Allowance for loan losses	(162,903)	(251,603)
Loans, net	8,740,134	8,246,977
FDIC loss share receivables	241,040	423,069
Premises and equipment, net	296,988	303,523
Goodwill	401,872	401,872
Other assets	558,575	565,719
Total Assets	12,823,503	13,129,678
Liabilities
Noninterest-bearing	2,055,333	1,967,662
Interest-bearing	8,586,385	8,780,615
Total deposits	10,641,718	10,748,277
Short-term borrowings	289,377	303,045
Long-term debt	283,485	423,377
Other liabilities	104,162	125,111
Total Liabilities	11,318,742	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	1,172,359	1,176,180
Retained earnings	407,582	411,472
Accumulated other comprehensive income	(4,912)	24,477
Treasury stock at cost - 2,207,327 and 2,427,640 shares, respectively	(102,185)	(114,178)
Total Shareholders' Equity	1,504,761	1,529,868
Total Liabilities and Shareholders' Equity	$ 12,823,503	$ 13,129,678

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Investment Securities - Schedule of Securities with Gross Unrealized Losses Aggregated by Investment Category (Detail) (USD $) In Thousands, unless otherwise specified	6 Months Ended	12 Months Ended
	Jun. 30, 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	$ (25,705)	$ (1,859)
Securities available for sale, Less Than Twelve Months, Fair Value	1,063,228	239,768
Securities available for sale, Over Twelve Months, Gross Unrealized Losses	(598)	(187)
Securities available for sale, Over Twelve Months, Fair Value	16,599	5,013
Securities available for sale, Gross Unrealized Losses, Total	(26,303)	(2,046)
Securities available for sale, Fair Value, Total	1,079,827	244,781
Securities held to maturity, Less Than Twelve Months, Gross Unrealized Losses	(2,937)	(266)
Securities held to maturity, Less Than Twelve Months, Fair Value	56,044	24,504
Securities held to maturity, Over Twelve Months, Gross Unrealized Losses	(63)
Securities held to maturity, Over Twelve Months, Fair Value	1,264
Securities held to maturity, Gross Unrealized Losses, Total	(3,000)	(266)
Securities held to maturity, Fair Value, Total	57,308	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	(7,768)	(386)
Securities available for sale, Less Than Twelve Months, Fair Value	283,840	59,741
Securities available for sale, Gross Unrealized Losses, Total	(7,768)	(386)
Securities available for sale, Fair Value, Total	283,840	59,741
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	(10)
Securities available for sale, Less Than Twelve Months, Fair Value	481
Securities available for sale, Over Twelve Months, Gross Unrealized Losses	(208)	(178)
Securities available for sale, Over Twelve Months, Fair Value	1,065	1,094
Securities available for sale, Gross Unrealized Losses, Total	(218)	(178)
Securities available for sale, Fair Value, Total	1,546	1,094
Securities held to maturity, Less Than Twelve Months, Gross Unrealized Losses	(1,268)	(113)
Securities held to maturity, Less Than Twelve Months, Fair Value	29,792	8,242
Securities held to maturity, Over Twelve Months, Gross Unrealized Losses	(63)
Securities held to maturity, Over Twelve Months, Fair Value	1,264
Securities held to maturity, Gross Unrealized Losses, Total	(1,331)	(113)
Securities held to maturity, Fair Value, Total	31,056	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	(17,927)	(1,473)
Securities available for sale, Less Than Twelve Months, Fair Value	778,907	180,027
Securities available for sale, Over Twelve Months, Gross Unrealized Losses	(390)	(9)
Securities available for sale, Over Twelve Months, Fair Value	15,534	3,919
Securities available for sale, Gross Unrealized Losses, Total	(18,317)	(1,482)
Securities available for sale, Fair Value, Total	794,441	183,946
Securities held to maturity, Less Than Twelve Months, Gross Unrealized Losses	(1,669)	(153)
Securities held to maturity, Less Than Twelve Months, Fair Value	26,252	16,262
Securities held to maturity, Gross Unrealized Losses, Total	(1,669)	(153)
Securities held to maturity, Fair Value, Total	$ 26,252	$ 16,262

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Derivative Instruments and Other Hedging Activities - Reconciliation of Gross Amounts in Consolidated Balance Sheets (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Derivative Instruments And Hedging Activities [Line Items]
Derivative assets subject to master netting arrangements, Gross Amounts	$ 24,787	$ 35,202
Derivative liabilities subject to master netting arrangements, Gross Amounts	13,917	27,783
Derivative assets subject to master netting arrangements, Gross Amounts Not Offset	24,787	34,703
Derivative liabilities subject to master netting arrangements, Gross Amounts Not Offset	7,952	13,934
Derivatives [Member]
Derivative Instruments And Hedging Activities [Line Items]
Derivative assets subject to master netting arrangements, Gross Amounts Not Offset		(499)
Derivative liabilities subject to master netting arrangements, Gross Amounts Not Offset		(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	(5,965)	(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		499
Derivative liabilities subject to master netting arrangements, Gross Amounts		1,843
Derivative assets subject to master netting arrangements, Gross Amounts Not Offset
Derivative liabilities subject to master netting arrangements, Gross Amounts Not Offset		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	13,917	25,940
Derivative liabilities subject to master netting arrangements, Gross Amounts	13,917	25,940
Derivative assets subject to master netting arrangements, Gross Amounts Not Offset	13,917	25,940
Derivative liabilities subject to master netting arrangements, Gross Amounts Not Offset	7,952	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		(499)
Derivative liabilities subject to master netting arrangements, Gross Amounts Not Offset		(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	(5,965)	(13,350)
Written and Purchased Options [Member]
Derivative Instruments And Hedging Activities [Line Items]
Derivative assets subject to master netting arrangements, Gross Amounts	10,870	8,763
Derivative assets subject to master netting arrangements, Gross Amounts Not Offset	10,870	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

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Goodwill and Other Acquired Intangible Assets - Schedule of Definite-Lived Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Goodwill [Line Items]
Gross Carrying Amount	$ 46,754	$ 46,754
Accumulated Amortization	(29,058)	(26,694)
Net Carrying Amount	17,696	20,060
Core Deposit Intangibles [Member]
Goodwill [Line Items]
Gross Carrying Amount	45,406	45,406
Accumulated Amortization	(28,534)	(26,284)
Net Carrying Amount	16,872	19,122
Customer Relationship Intangible Asset [Member]
Goodwill [Line Items]
Gross Carrying Amount	1,348	1,348
Accumulated Amortization	(524)	(410)
Net Carrying Amount	$ 824	$ 938

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Investment Securities (Tables)

6 Months Ended

Jun. 30, 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:

	June 30, 2013
			Gross		Gross			Estimated
	Amortized		Unrealized		Unrealized			Fair
(Dollars in thousands)	Cost		Gains		Losses			Value
Securities available for sale:
U.S. Government-sponsored enterprise obligations	$	430,701	$	1,814	$	(7,768	)	$	424,747
Obligations of state and political obligations		114,008		3,293		(218	)		117,083
Mortgage-backed securities		1,374,322		12,735		(18,317	)		1,368,740
Other securities		1,460		28		—			1,488
Total securities available for sale	$	1,920,491	$	17,870	$	(26,303	)	$	1,912,058
Securities held to maturity:
U.S. Government-sponsored enterprise obligations	$	34,465	$	771	$	—		$	35,236
Obligations of state and political obligations		89,005		1,945		(1,331	)		89,619
Mortgage-backed securities		39,770		396		(1,669	)		38,497
Total securities held to maturity	$	163,240	$	3,112	$	(3,000	)	$	163,352

	December 31, 2012
			Gross		Gross			Estimated
	Amortized		Unrealized		Unrealized			Fair
(Dollars in thousands)	Cost		Gains		Losses			Value
Securities available for sale:
U.S. Government-sponsored enterprise obligations	$	281,746	$	4,364	$	(386	)	$	285,724
Obligations of state and political obligations		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 obligations		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 aggregated by investment category and length of time that individual securities have been in a continuous loss position is as follows:

	June 30, 2013
	Less Than Twelve Months					Over Twelve Months					Total
	Gross			Estimated		Gross			Estimated		Gross			Estimated
	Unrealized			Fair		Unrealized			Fair		Unrealized			Fair
(Dollars in thousands)	Losses			Value		Losses			Value		Losses			Value
Securities available for sale:
U.S. Government-sponsored enterprise obligations	$	(7,768	)	$	283,840	$	—		$	—	$	(7,768	)	$	283,840
Obligations of state and political obligations		(10	)		481		(208	)		1,065		(218	)		1,546
Mortgage-backed securities		(17,927	)		778,907		(390	)		15,534		(18,317	)		794,441
Total securities available for sale	$	(25,705	)	$	1,063,228	$	(598	)	$	16,599	$	(26,303	)	$	1,079,827
Securities held to maturity:
Obligations of state and political obligations	$	(1,268	)	$	29,792	$	(63	)	$	1,264	$	(1,331	)	$	31,056
Mortgage-backed securities		(1,669	)		26,252		—			—		(1,669	)		26,252
Total securities held to maturity	$	(2,937	)	$	56,044	$	(63	)	$	1,264	$	(3,000	)	$	57,308

	December 31, 2012
	Less Than Twelve Months					Over Twelve Months					Total
	Gross			Estimated		Gross			Estimated		Gross			Estimated
	Unrealized			Fair		Unrealized			Fair		Unrealized			Fair
(Dollars in thousands)	Losses			Value		Losses			Value		Losses			Value
Securities available for sale:
U.S. Government-sponsored enterprise obligations	$	(386	)	$	59,741	$	—		$	—	$	(386	)	$	59,741
Obligations of state and political obligations		—			—		(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:
Obligations of state and political obligations	$	(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 of Investment Securities by Maturity

The amortized cost and estimated fair value of investment securities by maturity at June 30, 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
	Weighted					Estimated		Weighted					Estimated
	Average			Amortized		Fair		Average			Amortized		Fair
(Dollars in thousands)	Yield			Cost		Value		Yield			Cost		Value
Within one year or less		2.44	%	$	3,814	$	3,857		2.25	%	$	17,991	$	18,299
One through five years		1.36			245,643		245,107		2.49			24,104		24,760
After five through ten years		1.93			580,896		579,393		2.71			26,140		26,862
Over ten years		1.80			1,090,138		1,083,701		2.84			95,005		93,431
		1.79	%	$	1,920,491	$	1,912,058		2.70	%	$	163,240	$	163,352

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. Gains or losses on securities sold are recorded on the trade date, using the specific identification method.

	Three Months Ended June 30					Six Months Ended June 30
(Dollars in thousands)	2013			2012		2013			2012
Realized gains	$	4		$	901	$	2,369		$	3,717
Realized losses		(70	)		—		(108	)		(15	)
	$	(66	)	$	901	$	2,261		$	3,702

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

At June 30, 2013 and December 31, 2012, the Company included the following securities in “Other assets” on the Company’s consolidated balance sheets:

	June 30		December 31
(Dollars in thousands)	2013		2012
Federal Home Loan Bank (FHLB) stock	$	10,312	$	16,860
Federal Reserve Bank (FRB) stock		28,098		28,155
Other investments		1,306		1,201
	$	39,716	$	46,216

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Fair Value Measurements

6 Months Ended

Jun. 30, 2013

Fair Value Disclosures [Abstract]

Fair Value Measurements

NOTE 16 – 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.

	June 30, 2013
			Fair Value Measurements Using
(Dollars in thousands)	Total		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	$	1,912,058	$	—	$	1,912,058	$	—
Derivative instruments		35,017		—		35,017		—
Total	$	1,947,075	$	—	$	1,947,075	$	—
Liabilities
Derivative instruments		26,325		—		26,325		—
Total	$	26,325	$	—	$	26,325	$	—

	December 31, 2012
			Fair Value Measurements Using
(Dollars in thousands)	Total		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 (realized and unrealized) included in earnings (or changes in net assets) for the first six 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)	$	3,548	$	—
Change in unrealized gains (losses) relating to assets still held at June 30, 2013		—		(28,204	)

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.

	June 30, 2013
			Fair Value Measurements Using
(Dollars in thousands)	Total		Quoted Prices in Active Markets for     Identical Assets     (Level 1)		Significant Other     Observable     Inputs (Level 2)		Significant     Unobservable     Inputs (Level 3)
Assets
Loans	$	1,465	$	—	$	1,465	$	—
Mortgage loans held for sale		118,848		—		118,848		—
Property and equipment		6,721		—		6,721		—
OREO		24,852		—		24,852		—
Total	$	151,886	$	—	$	151,886	$	—

	December 31, 2012
			Fair Value Measurements Using
(Dollars in thousands)	Total		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 $1,791,000 were recorded at their fair value at June 30, 2013. These loans include a reserve of $326,000 included in the Company’s allowance for credit losses at June 30, 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.

During the second quarter of 2013, the Company announced plans to close ten branches during the second and third quarters of 2013 as part of its business strategy. The Company has notified customers of these branches and has received the required regulatory approvals to proceed with closure. The Company reviewed the carrying amount of the owned properties and concluded it exceeded the fair value of these branches at that date. As a result, the Company recorded an impairment loss in other noninterest expense of $4,618,000 in its consolidated statement of comprehensive income for the six months ended June 30, 2013. After the impairment loss, the carrying value of the branches was $6,721,000 and is included in premises and equipment on the Company’s consolidated balance sheet at June 30, 2013. When these branches close, they will be included in other real estate owned (as real estate acquired for development or resale), a component of other assets on the consolidated balance sheet.

Fair value of the branches was based on a third-party broker opinion of value using both a comparable sales and cash flow approach. The Company did not modify the third-party pricing information for unobservable inputs.

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 six months ended June 30, 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 six months ended June 30, 2013 and 2012.

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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		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Earnings Per Share, Basic And Diluted, By Common Class, Including Two Class Method [Line Items]
Income available to common shareholders	$ 15,590	$ 12,560	$ 16,307	$ 31,953
Distributed earnings (capital) to common shareholders - basic	15,300	12,320	15,994	31,340
Distributed and undistributed earnings to common shareholders - diluted	15,297	12,320	15,994	31,346
Weighted average shares outstanding - basic	29,610,315	29,463,811	29,556,810	29,424,078
Weighted average shares outstanding - diluted	29,066,906	28,950,806	29,023,002	28,939,291
Earnings per common share - Basic	$ 0.53	$ 0.43	$ 0.55	$ 1.09
Earnings per common share - diluted	$ 0.53	$ 0.43	$ 0.55	$ 1.08
Unvested Restricted Stock [Member]
Earnings Per Share, Basic And Diluted, By Common Class, Including Two Class Method [Line Items]
Distributed earnings (capital) to unvested restricted stock	(290)	(240)	(313)	(613)
Undistributed earnings reallocated to unvested restricted stock	$ (3)			$ 6
Earnings per common share - Basic	$ 0.51	$ 0.43	$ 0.55	$ 1.12
Earnings per common share - diluted	$ 0.52	$ 0.43	$ 0.55	$ 1.10

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Derivative Instruments and Other Hedging Activities - Schedule of Outstanding Derivative Instruments (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Derivative Instruments And Hedging Activities [Line Items]
Derivative Asset, Fair Value	$ 24,787	$ 35,202
Derivative Liability, Fair Value	13,917	27,783
Derivative Asset, Notional Amount	948,589	1,010,357
Derivative Liability, Notional Amount	691,874	648,690
Designated as Hedging Instruments [Member]
Derivative Instruments And Hedging Activities [Line Items]
Derivative Asset, Notional Amount		35,000
Derivative Liability, Notional Amount		35,000
Not Designated as Hedging Instruments [Member]
Derivative Instruments And Hedging Activities [Line Items]
Derivative Asset, Notional Amount	948,589	975,357
Derivative Liability, Notional Amount	691,874	613,690
Other Assets [Member]
Derivative Instruments And Hedging Activities [Line Items]
Derivative Asset, Fair Value	35,017	42,119
Other Assets [Member] | Designated as Hedging Instruments [Member]
Derivative Instruments And Hedging Activities [Line Items]
Derivative Asset, Fair Value		499
Other Assets [Member] | Not Designated as Hedging Instruments [Member]
Derivative Instruments And Hedging Activities [Line Items]
Derivative Asset, Fair Value	35,017	41,620
Other Liabilities [Member]
Derivative Instruments And Hedging Activities [Line Items]
Derivative Liability, Fair Value	26,325	36,890
Other Liabilities [Member] | Designated as Hedging Instruments [Member]
Derivative Instruments And Hedging Activities [Line Items]
Derivative Liability, Fair Value		1,843
Other Liabilities [Member] | Not Designated as Hedging Instruments [Member]
Derivative Instruments And Hedging Activities [Line Items]
Derivative Liability, Fair Value	26,325	35,047
Interest Rate Contracts [Member] | Designated as Hedging Instruments [Member]
Derivative Instruments And Hedging Activities [Line Items]
Derivative Asset, Notional Amount		35,000
Derivative Liability, Notional Amount		35,000
Interest Rate Contracts [Member] | Not Designated as Hedging Instruments [Member]
Derivative Instruments And Hedging Activities [Line Items]
Derivative Asset, Notional Amount	380,211	374,536
Derivative Liability, Notional Amount	380,211	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		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	13,917	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		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	13,917	25,940
Forward Sale Contracts [Member] | Not Designated as Hedging Instruments [Member]
Derivative Instruments And Hedging Activities [Line Items]
Derivative Asset, Notional Amount	226,136	212,028
Derivative Liability, Notional Amount	38,935	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	7,274	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	330	343
Written and Purchased Options [Member] | Not Designated as Hedging Instruments [Member]
Derivative Instruments And Hedging Activities [Line Items]
Derivative Asset, Notional Amount	342,242	388,793
Derivative Liability, Notional Amount	272,728	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	13,826	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	$ 12,078	$ 8,764

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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	Jun. 30, 2013	Dec. 31, 2012
Investments Debt And Equity Securities [Abstract]
Federal Home Loan Bank (FHLB) stock	$ 10,312	$ 16,860
Federal Reserve Bank (FRB) stock	28,098	28,155
Other investments	1,306	1,201
Total equity securities	$ 39,716	$ 46,216

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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	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	$ 251,603	$ 193,761
(Reversal of) Provision for loan losses before benefit attributable to FDIC loss share agreements	(56,654)	22,385
Adjustment attributable to FDIC loss share arrangements	55,085	(10,633)
Net (reversal of) provision for loan losses	(1,569)	11,752
Increase (Decrease) in FDIC loss share receivable	(55,085)	10,633
Transfer of balance to OREO	(17,685)	(12,997)
Transfer of balance to the RUFC	(9,828)
Loans charged-off	(6,583)	(17,680)
Recoveries	2,050	1,816
Balance at end of period	162,903	187,285
Balance at beginning of period
Transfer of balance from the allowance for loan losses	9,828
Provision for unfunded lending commitments	514
Balance at end of period	10,342
Non-Covered Loans Excluding Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	74,211	74,861
(Reversal of) Provision for loan losses before benefit attributable to FDIC loss share agreements	(585)	5,277
Net (reversal of) provision for loan losses	(585)	5,277
Transfer of balance to the RUFC	(9,828)
Loans charged-off	(4,249)	(4,218)
Recoveries	2,050	1,775
Balance at end of period	61,599	77,695
Balance at beginning of period
Transfer of balance from the allowance for loan losses	9,828
Provision for unfunded lending commitments	514
Balance at end of period	10,342
Non-Covered Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	8,816
(Reversal of) Provision for loan losses before benefit attributable to FDIC loss share agreements	(1,009)	4,293
Net (reversal of) provision for loan losses	(1,009)	4,293
Transfer of balance to OREO	(973)	(308)
Loans charged-off		(179)
Recoveries		22
Balance at end of period	6,834	3,828
Balance at beginning of period
Covered Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	168,576	118,900
(Reversal of) Provision for loan losses before benefit attributable to FDIC loss share agreements	(55,060)	12,815
Adjustment attributable to FDIC loss share arrangements	55,085	(10,633)
Net (reversal of) provision for loan losses	25	2,182
Increase (Decrease) in FDIC loss share receivable	(55,085)	10,633
Transfer of balance to OREO	(16,712)	(12,689)
Loans charged-off	(2,334)	(13,283)
Recoveries		19
Balance at end of period	94,470	105,762
Balance at beginning of period

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Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2013

Commitments And Contingencies Disclosure [Abstract]

Summary of Financial Instruments Outstanding

The Company had the following financial instruments outstanding, whose contract amounts represent credit risk:

(Dollars in thousands)	June 30 2013		December 31 2012
Commitments to grant loans	$	357,220	$	192,295
Unfunded commitments under lines of credit		2,693,642		2,372,971
Commercial and standby letters of credit		94,797		62,207
Reserve for unfunded lending commitments		10,342		—

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Other Real Estate Owned (Tables)

6 Months Ended

Jun. 30, 2013

Banking And Thrift [Abstract]

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

Other real estate owned, segregated into non-covered and covered properties, consists of the following for the periods indicated:

	June 30, 2013						December 31, 2012
(Dollars in thousands)	Non-covered		Covered		Total		Non-covered		Covered		Total
Real estate owned acquired by foreclosure	$	33,524	$	86,002	$	119,526	$	35,080	$	75,784	$	110,864
Real estate acquired for development or resale		8,434		—		8,434		9,199		—		9,199
Other foreclosed property		100		1,547		1,647		14		1,459		1,473
	$	42,058	$	87,549	$	129,607	$	44,293	$	77,243	$	121,536

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Derivative Instruments and Other Hedging Activities (Tables)

6 Months Ended

Jun. 30, 2013

Derivative Instruments And Hedging Activities Disclosure [Abstract]

Schedule of Outstanding Derivative Instruments

Information pertaining to outstanding derivative instruments is as follows:

	Balance Sheet	Asset Derivatives Fair Value				Balance Sheet	Liability Derivatives Fair Value
(Dollars in thousands)	Location	June 30, 2013		December 31, 2012		Location	June 30, 2013		December 31, 2012
Derivatives designated as hedging instruments under ASC Topic 815:
Interest rate contracts	Other assets	$	—	$	499	Other liabilities	$	—	$	1,843
Total derivatives designated as hedging instruments under ASC Topic 815		$	—	$	499		$	—	$	1,843
Derivatives not designated as hedging instruments under ASC Topic 815:
Interest rate contracts	Other assets	$	13,917	$	25,940	Other liabilities	$	13,917	$	25,940
Forward sales contracts	Other assets		7,274		2,774	Other liabilities		330		343
Written and purchased options	Other assets		13,826		12,906	Other liabilities		12,078		8,764
Total derivatives not designated as hedging instruments under ASC Topic 815		$	35,017	$	41,620		$	26,325	$	35,047
Total derivatives		$	35,017	$	42,119		$	26,325	$	36,890

	Asset Derivatives Notional Amount				Liability Derivatives Notional Amount
(Dollars in thousands)	June 30, 2013		December 31, 2012		June 30, 2013		December 31, 2012
Derivatives designated as hedging instruments under ASC Topic 815:
Interest rate contracts	$	—	$	35,000	$	—	$	35,000
Total derivatives designated as hedging instruments under ASC Topic 815	$	—	$	35,000	$	—	$	35,000
Derivatives not designated as hedging instruments under ASC Topic 815:
Interest rate contracts	$	380,211	$	374,536	$	380,211	$	374,536
Forward sales contracts		226,136		212,028		38,935		53,269
Written and purchased options		342,242		388,793		272,728		185,885
Total derivatives not designated as hedging instruments under ASC Topic 815	$	948,589	$	975,357	$	691,874	$	613,690
Total derivatives	$	948,589	$	1,010,357	$	691,874	$	648,690

Reconciliation of Gross Amounts in Consolidated Balance Sheets

	June 30, 2013
(Dollars in thousands)	Gross Amounts		Gross Amounts Not Offset
	Presented in the		in the Balance Sheet
	Balance Sheet		Derivatives		Collateral (1)			Net
Derivatives subject to master netting arrangements
Derivative assets
Interest rate contracts designated as hedging instruments	$	—	$	—	$	—		$	—
Interest rate contracts not designated as hedging instruments		13,917		—		—			13,917
Written and purchased options		10,870		—		—			10,870
Total derivative assets subject to master netting arrangements	$	24,787	$	—	$	—		$	24,787
Derivative liabilities
Interest rate contracts designated as hedging instruments	$	—	$	—	$	—		$	—
Interest rate contracts not designated as hedging instruments		13,917		—		(5,965	)		7,952
Total derivative liabilities subject to master netting arrangements	$	13,917	$	—	$	(5,965	)	$	7,952

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

	December 31, 2012
(Dollars in thousands)	Gross Amounts		Gross Amounts Not Offset
	Presented in the		in the Balance Sheet
	Balance Sheet		Derivatives			Collateral (1)			Net
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.

Schedule of Derivative Instruments on Consolidated Financial Statements

Information pertaining to the effect of the hedging instruments on the consolidated financial statements is as follows.

	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)
	As of June 30					For the Three Months Ended June 30
(Dollars in thousands)	2013		2012				2013		2012				2013		2012
Derivatives in ASC Topic 815 Cash Flow Hedging Relationships
Interest rate contracts	$	—	$	(3,144	)	Other income (expense)	$	32	$	(400	)	Other income (expense)	$	—	$	—
	$	—	$	(3,144	)		$	32	$	(400	)		$	—	$	—

	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)
	As of June 30					For the Six Months Ended June 30
(Dollars in thousands)	2013		2012				2013			2012				2013		2012
Derivatives in ASC Topic 815 Cash Flow Hedging Relationships
Interest rate contracts	$	—	$	(3,144	)	Other income (expense)	$	(392	)	$	(787	)	Other income (expense)	$	—	$	—
	$	—	$	(3,144	)		$	(392	)	$	(787	)		$	—	$	—

	Location of Gain (Loss) Recognized in Income on Derivatives	Amount of Gain (Loss) Recognized in Income on Derivatives
		For the Three Months Ended June 30					For the Six Months Ended June 30
(Dollars in thousands)		2013			2012		2013			2012
Derivatives Not Designated as Hedging Instruments under ASC Topic 815
Interest rate contracts	Other income (expense)	$	1			—		—			—
Forward sales contracts	Mortgage Income		8,320			—		5,408			—
Written and purchased options	Mortgage Income		(4,815	)		1,660		(3,730	)		1,716
		$	3,506		$	1,660	$	1,678		$	1,716

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Loans Receivable

6 Months Ended

Jun. 30, 2013

Receivables [Abstract]

Loans Receivable

NOTE 6 – LOANS RECEIVABLE

Loans receivable consist of the following, segregated into non-covered and covered loans, for the periods indicated:

	June 30, 2013
(Dollars in thousands)	Non-covered loans		Covered loans		Total
Commercial loans:
Real estate	$	3,224,078	$	520,160	$	3,744,238
Business		2,618,963		68,957		2,687,920
		5,843,041		589,117		6,432,158
Residential mortgage loans:
Residential 1-4 family		346,098		167,654		513,752
Construction / Owner Occupied		4,744		—		4,744
		350,842		167,654		518,496
Consumer and other loans:
Home equity		1,120,974		157,849		1,278,823
Indirect automobile		351,631		—		351,631
Other		318,334		3,595		321,929
		1,790,939		161,444		1,952,383
	$	7,984,822	$	918,215	$	8,903,037

	December 31, 2012
(Dollars in thousands)	Non-covered loans		Covered loans		Total
Commercial loans:
Real estate	$	2,990,700	$	640,843	$	3,631,543
Business		2,450,667		87,051		2,537,718
		5,441,367		727,894		6,169,261
Residential mortgage loans:
Residential 1-4 family		284,019		187,164		471,183
Construction / Owner Occupied		6,021		—		6,021
		290,040		187,164		477,204
Consumer and other loans:
Home equity		1,076,913		174,212		1,251,125
Indirect automobile		327,985		—		327,985
Other		269,519		3,486		273,005
		1,674,417		177,698		1,852,115
	$	7,405,824	$	1,092,756	$	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 (“Sterling”). The loans and foreclosed real estate that were acquired in these transactions are covered by loss sharing agreements between the FDIC and IBERIABANK, which afford IBERIABANK significant loss protection. Refer to Note 8 for additional information regarding the Company’s loss sharing agreements.

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 agreements. 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 agreements as “non-covered loans.”

Deferred loan origination fees were $15,429,000 and $14,040,000 and deferred loan expenses were $6,453,000 and $5,270,000 at June 30, 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 June 30, 2013 and December 31, 2012, overdrafts of $2,530,000 and $3,231,000, respectively, have been reclassified to loans receivable.

Loans with carrying values of $2.2 billion and $1.5 billion were pledged to secure public deposits and other borrowings at June 30, 2013 and December 31, 2012, respectively.

Non-covered Loans

The following tables provide an analysis of the aging of non-covered loans as of June 30, 2013 and December 31, 2012. Because of the difference in 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.

	June 30, 2013
	Non-covered loans excluding acquired loans
											Total Non-covered Loans, Net of Unearned Income		Recorded Investment  > 90 days and Accruing
	Past Due  (1)
(Dollars in thousands)	30-59 days		60-89 days		> 90 days		Total		Current
Commercial real estate construction	$	104	$	—	$	4,577	$	4,681	$	320,739	$	325,420	$	45
Commercial real estate - other		8,275		1,318		13,804		23,397		2,480,504		2,503,901		76
Commercial business		89		20		14,028		14,137		2,544,729		2,558,866		—
Residential prime		580		547		8,725		9,852		207,986		217,838		750
Residential subprime		—		—		—		—		108,009		108,009		—
Home equity		1,213		343		7,257		8,813		1,050,562		1,059,375		200
Indirect automobile		1,109		309		1,012		2,430		346,049		348,479		—
Credit card		102		54		424		580		51,663		52,243		—
Other		990		122		313		1,425		248,977		250,402		—
	$	12,462	$	2,713	$	50,140	$	65,315	$	7,359,218	$	7,424,533	$	1,071

⁽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.

	December 31, 2012
	Non-covered loans excluding acquired loans
											Total Non-covered		Recorded
	Past Due  (1)										Loans, Net of		Investment > 90 days
(Dollars in thousands)	30-59 days		60-89 days		> 90 days		Total		Current		Unearned Income		and Accruing
Commercial real estate construction	$	60	$	—	$	5,479	$	5,539	$	288,137	$	293,676	$	—
Commercial 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
Residential prime		662		1,156		9,168		10,986		185,843		196,829		801
Residential subprime		—		—		—		—		60,454		60,454		—
Home equity		2,283		796		5,793		8,872		991,766		1,000,638		158
Indirect automobile		1,624		326		868		2,818		320,148		322,966		—
Credit card		130		51		424		605		51,117		51,722		—
Other		566		105		310		981		201,161		202,142		—
	$	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.

	June 30, 2013
	Non-covered acquired loans
														Total Non-covered		Recorded
	Past Due  (1)													Loans, Net of		Investment > 90 days
(Dollars in thousands)	30-59 days		60-89 days		> 90 days		Total		Current		Discount			Unearned Income		and Accruing
Commercial real estate construction	$	186	$	51	$	3,740	$	3,977	$	20,732	$	(5,087	)	$	19,622	$	3,740
Commercial real estate - other		2,413		1,576		34,942		38,931		389,991		(53,787	)		375,135		34,942
Commercial business		340		97		2,519		2,956		63,962		(6,821	)		60,097		2,519
Residential prime		—		—		779		779		25,217		(1,001	)		24,995		779
Home equity		911		427		4,848		6,186		62,388		(6,975	)		61,599		4,848
Indirect automobile		58		14		118		190		2,962		—			3,152		118
Other		179		165		1,015		1,359		15,571		(1,241	)		15,689		1,015
	$	4,087	$	2,330	$	47,961	$	54,378	$	580,823	$	(74,912	)	$	560,289	$	47,961

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

	December 31, 2012
	Non-covered acquired loans
														Total Non-covered		Recorded
	Past Due  (1)													Loans, Net of		Investment > 90 days
(Dollars in thousands)	30-59 days		60-89 days		> 90 days		Total		Current		Discount			Unearned Income		and Accruing
Commercial real estate construction	$	369	$	—	$	4,067	$	4,436	$	29,098	$	(3,968	)	$	29,566	$	4,067
Commercial 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
Residential prime		—		—		779		779		30,663		1,315			32,757		779
Home equity		2,379		382		4,354		7,115		73,658		(4,498	)		76,275		4,354
Indirect automobile		171		4		146		321		4,698		—			5,019		146
Other		202		17		495		714		21,746		(6,805	)		15,655		495
	$	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.

Nonaccrual Loans

The following table provides the recorded investment of non-covered loans on nonaccrual status at June 30, 2013 and December 31, 2012. Nonaccrual loans in the table exclude acquired loans.

(Dollars in thousands)	June 30, 2013		December 31, 2012
Commercial real estate construction	$	4,533	$	5,479
Commercial real estate - other		13,728		23,475
Commercial business		14,028		3,358
Residential prime		7,974		8,367
Home equity		7,057		5,635
Indirect automobile		1,012		868
Credit card		424		424
Other		350		310
	$	49,106	$	47,916

Covered Loans

The carrying amount of the acquired covered loans at June 30, 2013 and December 31, 2012 consisted of loans determined to be impaired at the acquisition date, 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.

	June 30, 2013
	Acquired		Acquired		Total
	Impaired		Performing		Covered
(Dollars in thousands)	Loans		Loans		Loans
Commercial loans:
Real estate	$	132,565	$	387,595	$	520,160
Business		2,005		66,952		68,957
		134,570		454,547		589,117
Residential mortgage loans:
Residential 1-4 family		17,969		149,685		167,654
Construction / Owner Occupied		—		—		—
		17,969		149,685		167,654
Consumer and other loans:
Home equity		18,791		139,058		157,849
Indirect automobile		—		—		—
Other		713		2,882		3,595
		19,504		141,940		161,444
	$	172,043	$	746,172	$	918,215

	December 31, 2012
	Acquired		Acquired		Total
	Impaired		Performing		Covered
(Dollars in thousands)	Loans		Loans		Loans
Commercial loans:
Real estate	$	167,742	$	473,101	$	640,843
Business		2,757		84,294		87,051
		170,499		557,395		727,894
Residential mortgage loans:
Residential 1-4 family		20,232		166,932		187,164
Construction / Owner Occupied		—		—		—
		20,232		166,932		187,164
Consumer and other loans:
Home equity		22,094		152,118		174,212
Indirect automobile		—		—		—
Other		820		2,666		3,486
		22,914		154,784		177,698
	$	213,645	$	879,111	$	1,092,756

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 six months ended June 30, 2013 and 2012.

	June 30, 2013									June 30, 2012
	Acquired			Acquired			Total			Acquired			Acquired			Total
	Impaired			Performing			Acquired			Impaired			Performing			Acquired
(Dollars in thousands)	Loans			Loans			Loans			Loans			Loans			Loans
Balance at beginning of period	$	76,623		$	279,770		$	356,393		$	83,834		$	386,977		$	470,811
Transfers from nonaccretable difference to accretable yield		6,368			32,039			38,407			—			—			—
Accretion		(10,973	)		(81,227	)		(92,200	)		(12,878	)		(109,850	)		(122,728	)
Changes in expected cash flows not affecting nonaccretable differences (1)		4,158			70,721			74,879			5,277			(4,158	)		1,119
Balance at end of period	$	76,176		$	301,303		$	377,479		$	76,233		$	272,969		$	349,202

(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 six months of 2013 increased primarily as a result of changes in expected cash flows not impacting the nonaccretable difference, offset by an increase in accretion recognized during the period. Accretable yield during the first six months of 2012 decreased primarily as a result of the accretion recognized.

Troubled Debt Restructurings

Information about the Company’s TDRs at June 30, 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 ASC Topic 310-30, which include the covered loans above, as well as the loans acquired in the OMNI and Cameron acquisitions completed during 2011 and certain loans 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 certain loans from Florida Gulf that would otherwise meet the criteria for classification as a troubled debt restructuring are excluded from the tables below.

	June 30, 2013								June 30, 2012
	Accruing Loans								Accruing Loans
			Past Due		Nonaccrual		Total				Past Due		Nonaccrual		Total
(Dollars in thousands)	Current		> 30 days		TDRs		TDRs		Current		> 30 days		TDRs		TDRs
Commercial real estate construction	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—
Commercial real estate - other		677		—		8,064		8,741		645		—		19,848		20,493
Commercial business		1,135		—		281		1,416		24		—		1,887		1,911
Residential prime		—		—		—		—		—		—		—		—
Residential subprime		—		—		—		—		—		—		—		—
Home equity		—		—		268		268		—		—		226		226
Indirect automobile		—		—		—		—		—		—		—		—
Credit card		—		—		—		—		—		—		—		—
Other		—		—		—		—		—		—		—		—
	$	1,812	$	—	$	8,613	$	10,425	$	669	$	—	$	21,961	$	22,630

TDRs totaling $1,545,000 occurred during the current six-month period through modification of the original loan terms. The TDR that occurred during the current year was subsequently charged off during the six-month period June 30, 2013. Total TDRs of $27,339,000 at June 30, 2012 included $4,061,000 of TDRs that occurred during the six-month period ended June 30, 2012. The following table provides information on how the TDRs were modified during the periods indicated.

	Six Months Ended
	June 30
(Dollars in thousands)	2013		2012
Expected maturities	$	—	$	427
Interest rate adjustment		—		277
Maturity and interest rate adjustment		1,545		2,450
Movement to or extension of interest-rate only payments		—		540
Forbearance		—		30
Covenant modifications		—		—
Other concession(s) (1)		—		—
	$	1,545	$	3,724

(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 is presented in the following table.

	June 30, 2013						June 30, 2012
			Pre-modification		Post-modification				Pre-modification		Post-modification
			Outstanding		Outstanding				Outstanding		Outstanding
	Number of		Recorded		Recorded		Number of		Recorded		Recorded
(In thousands, except number of loans)	Loans		Investment		Investment  (1)		Loans		Investment		Investment  (1)
Commercial real estate		1	$	1,545	$	—		12	$	4,073	$	3,724
Commercial business		—		—		—		1		27		—
Residential prime		—		—		—		—		—		—
Home Equity		—		—		—		—		—		—
Indirect automobile		—		—		—		—		—		—
Credit card		—		—		—		—		—		—
Other		—		—		—		1		—		—
		1	$	1,545	$	—		14	$	4,100	$	3,724

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

Information detailing non-covered TDRs that subsequently defaulted during the previous twelve months is presented in the following table. 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.

	June 30, 2013				June 30, 2012
	Number of		Recorded		Number of		Recorded
(In thousands, except number of loans)	Loans		Investment		Loans		Investment
Commercial real estate		48	$	8,673		45	$	20,233
Commercial business		8		1,417		8		1,887
Residential prime		—		—		—		—
Home Equity		1		49		1		226
Indirect automobile		—		—		—		—
Credit card		—		—		—		—
Other		1		—		1		—
		58	$	10,139		55	$	22,346

XML

Loans Receivable - Schedule of Modified TDRs (Detail) (USD $)	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Receivables [Abstract]
Expected maturities		$ 427,000
Interest rate adjustment		277,000
Maturity and interest rate adjustment	1,545,000	2,450,000
Movement to or extension of interest-rate only payments		540,000
Forbearance		30,000
Covenant modifications
Other concession (s)(1)
Total	$ 1,545,000	$ 4,061,000

XML

Share-Based Compensation - Schedule of Share and Dividend Equivalent Share Award Activity (Parenthetical) (Detail) (USD $)	Jun. 30, 2013	Jun. 30, 2012
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Market price of Company's stock	$ 53.61	$ 50.45

XML

Loans Receivable (Tables)

6 Months Ended

Jun. 30, 2013

Schedule of Non-Covered Loans Outstanding

Loans receivable consist of the following, segregated into non-covered and covered loans, for the periods indicated:

	June 30, 2013
(Dollars in thousands)	Non-covered loans		Covered loans		Total
Commercial loans:
Real estate	$	3,224,078	$	520,160	$	3,744,238
Business		2,618,963		68,957		2,687,920
		5,843,041		589,117		6,432,158
Residential mortgage loans:
Residential 1-4 family		346,098		167,654		513,752
Construction / Owner Occupied		4,744		—		4,744
		350,842		167,654		518,496
Consumer and other loans:
Home equity		1,120,974		157,849		1,278,823
Indirect automobile		351,631		—		351,631
Other		318,334		3,595		321,929
		1,790,939		161,444		1,952,383
	$	7,984,822	$	918,215	$	8,903,037

	December 31, 2012
(Dollars in thousands)	Non-covered loans		Covered loans		Total
Commercial loans:
Real estate	$	2,990,700	$	640,843	$	3,631,543
Business		2,450,667		87,051		2,537,718
		5,441,367		727,894		6,169,261
Residential mortgage loans:
Residential 1-4 family		284,019		187,164		471,183
Construction / Owner Occupied		6,021		—		6,021
		290,040		187,164		477,204
Consumer and other loans:
Home equity		1,076,913		174,212		1,251,125
Indirect automobile		327,985		—		327,985
Other		269,519		3,486		273,005
		1,674,417		177,698		1,852,115
	$	7,405,824	$	1,092,756	$	8,498,580

Schedule of Non-Covered Loans on Nonaccrual Status

The following table provides the recorded investment of non-covered loans on nonaccrual status at June 30, 2013 and December 31, 2012. Nonaccrual loans in the table exclude acquired loans.

(Dollars in thousands)	June 30, 2013		December 31, 2012
Commercial real estate construction	$	4,533	$	5,479
Commercial real estate - other		13,728		23,475
Commercial business		14,028		3,358
Residential prime		7,974		8,367
Home equity		7,057		5,635
Indirect automobile		1,012		868
Credit card		424		424
Other		350		310
	$	49,106	$	47,916

Schedule of Carrying Amount of Acquired Covered Loans

The carrying amount of the acquired covered loans at June 30, 2013 and December 31, 2012 consisted of loans determined to be impaired at the acquisition date, 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.

	June 30, 2013
	Acquired		Acquired		Total
	Impaired		Performing		Covered
(Dollars in thousands)	Loans		Loans		Loans
Commercial loans:
Real estate	$	132,565	$	387,595	$	520,160
Business		2,005		66,952		68,957
		134,570		454,547		589,117
Residential mortgage loans:
Residential 1-4 family		17,969		149,685		167,654
Construction / Owner Occupied		—		—		—
		17,969		149,685		167,654
Consumer and other loans:
Home equity		18,791		139,058		157,849
Indirect automobile		—		—		—
Other		713		2,882		3,595
		19,504		141,940		161,444
	$	172,043	$	746,172	$	918,215

	December 31, 2012
	Acquired		Acquired		Total
	Impaired		Performing		Covered
(Dollars in thousands)	Loans		Loans		Loans
Commercial loans:
Real estate	$	167,742	$	473,101	$	640,843
Business		2,757		84,294		87,051
		170,499		557,395		727,894
Residential mortgage loans:
Residential 1-4 family		20,232		166,932		187,164
Construction / Owner Occupied		—		—		—
		20,232		166,932		187,164
Consumer and other loans:
Home equity		22,094		152,118		174,212
Indirect automobile		—		—		—
Other		820		2,666		3,486
		22,914		154,784		177,698
	$	213,645	$	879,111	$	1,092,756

Summary of Changes in Accretable Yields of Acquired Loans

The following is a summary of changes in the accretable yields of acquired loans during the six months ended June 30, 2013 and 2012.

	June 30, 2013									June 30, 2012
	Acquired			Acquired			Total			Acquired			Acquired			Total
	Impaired			Performing			Acquired			Impaired			Performing			Acquired
(Dollars in thousands)	Loans			Loans			Loans			Loans			Loans			Loans
Balance at beginning of period	$	76,623		$	279,770		$	356,393		$	83,834		$	386,977		$	470,811
Transfers from nonaccretable difference to accretable yield		6,368			32,039			38,407			—			—			—
Accretion		(10,973	)		(81,227	)		(92,200	)		(12,878	)		(109,850	)		(122,728	)
Changes in expected cash flows not affecting nonaccretable differences (1)		4,158			70,721			74,879			5,277			(4,158	)		1,119
Balance at end of period	$	76,176		$	301,303		$	377,479		$	76,233		$	272,969		$	349,202

(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 June 30, 2013 and 2012 is presented in the following tables.

	June 30, 2013								June 30, 2012
	Accruing Loans								Accruing Loans
			Past Due		Nonaccrual		Total				Past Due		Nonaccrual		Total
(Dollars in thousands)	Current		> 30 days		TDRs		TDRs		Current		> 30 days		TDRs		TDRs
Commercial real estate construction	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—
Commercial real estate - other		677		—		8,064		8,741		645		—		19,848		20,493
Commercial business		1,135		—		281		1,416		24		—		1,887		1,911
Residential prime		—		—		—		—		—		—		—		—
Residential subprime		—		—		—		—		—		—		—		—
Home equity		—		—		268		268		—		—		226		226
Indirect automobile		—		—		—		—		—		—		—		—
Credit card		—		—		—		—		—		—		—		—
Other		—		—		—		—		—		—		—		—
	$	1,812	$	—	$	8,613	$	10,425	$	669	$	—	$	21,961	$	22,630

Schedule of Modified TDRs

The following table provides information on how the TDRs were modified during the periods indicated.

	Six Months Ended
	June 30
(Dollars in thousands)	2013		2012
Expected maturities	$	—	$	427
Interest rate adjustment		—		277
Maturity and interest rate adjustment		1,545		2,450
Movement to or extension of interest-rate only payments		—		540
Forbearance		—		30
Covenant modifications		—		—
Other concession(s) (1)		—		—
	$	1,545	$	3,724

(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 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 June 30, 2013 and December 31, 2012.

	June 30, 2013
	Non-covered loans excluding acquired loans
											Total Non-covered Loans, Net of Unearned Income		Recorded Investment  > 90 days and Accruing
	Past Due  (1)
(Dollars in thousands)	30-59 days		60-89 days		> 90 days		Total		Current
Commercial real estate construction	$	104	$	—	$	4,577	$	4,681	$	320,739	$	325,420	$	45
Commercial real estate - other		8,275		1,318		13,804		23,397		2,480,504		2,503,901		76
Commercial business		89		20		14,028		14,137		2,544,729		2,558,866		—
Residential prime		580		547		8,725		9,852		207,986		217,838		750
Residential subprime		—		—		—		—		108,009		108,009		—
Home equity		1,213		343		7,257		8,813		1,050,562		1,059,375		200
Indirect automobile		1,109		309		1,012		2,430		346,049		348,479		—
Credit card		102		54		424		580		51,663		52,243		—
Other		990		122		313		1,425		248,977		250,402		—
	$	12,462	$	2,713	$	50,140	$	65,315	$	7,359,218	$	7,424,533	$	1,071

⁽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.

	December 31, 2012
	Non-covered loans excluding acquired loans
											Total Non-covered		Recorded
	Past Due  (1)										Loans, Net of		Investment > 90 days
(Dollars in thousands)	30-59 days		60-89 days		> 90 days		Total		Current		Unearned Income		and Accruing
Commercial real estate construction	$	60	$	—	$	5,479	$	5,539	$	288,137	$	293,676	$	—
Commercial 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
Residential prime		662		1,156		9,168		10,986		185,843		196,829		801
Residential subprime		—		—		—		—		60,454		60,454		—
Home equity		2,283		796		5,793		8,872		991,766		1,000,638		158
Indirect automobile		1,624		326		868		2,818		320,148		322,966		—
Credit card		130		51		424		605		51,117		51,722		—
Other		566		105		310		981		201,161		202,142		—
	$	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 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 June 30, 2013 and December 31, 2012.  

	June 30, 2013
	Non-covered acquired loans
														Total Non-covered		Recorded
	Past Due  (1)													Loans, Net of		Investment > 90 days
(Dollars in thousands)	30-59 days		60-89 days		> 90 days		Total		Current		Discount			Unearned Income		and Accruing
Commercial real estate construction	$	186	$	51	$	3,740	$	3,977	$	20,732	$	(5,087	)	$	19,622	$	3,740
Commercial real estate - other		2,413		1,576		34,942		38,931		389,991		(53,787	)		375,135		34,942
Commercial business		340		97		2,519		2,956		63,962		(6,821	)		60,097		2,519
Residential prime		—		—		779		779		25,217		(1,001	)		24,995		779
Home equity		911		427		4,848		6,186		62,388		(6,975	)		61,599		4,848
Indirect automobile		58		14		118		190		2,962		—			3,152		118
Other		179		165		1,015		1,359		15,571		(1,241	)		15,689		1,015
	$	4,087	$	2,330	$	47,961	$	54,378	$	580,823	$	(74,912	)	$	560,289	$	47,961

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

	December 31, 2012
	Non-covered acquired loans
														Total Non-covered		Recorded
	Past Due  (1)													Loans, Net of		Investment > 90 days
(Dollars in thousands)	30-59 days		60-89 days		> 90 days		Total		Current		Discount			Unearned Income		and Accruing
Commercial real estate construction	$	369	$	—	$	4,067	$	4,436	$	29,098	$	(3,968	)	$	29,566	$	4,067
Commercial 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
Residential prime		—		—		779		779		30,663		1,315			32,757		779
Home equity		2,379		382		4,354		7,115		73,658		(4,498	)		76,275		4,354
Indirect automobile		171		4		146		321		4,698		—			5,019		146
Other		202		17		495		714		21,746		(6,805	)		15,655		495
	$	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.

TDRs [Member]

Schedule of Subsequently Defaulted TDRs

Information about the Company’s non-covered TDRs occurring in these periods is presented in the following table.

	June 30, 2013						June 30, 2012
			Pre-modification		Post-modification				Pre-modification		Post-modification
			Outstanding		Outstanding				Outstanding		Outstanding
	Number of		Recorded		Recorded		Number of		Recorded		Recorded
(In thousands, except number of loans)	Loans		Investment		Investment  (1)		Loans		Investment		Investment  (1)
Commercial real estate		1	$	1,545	$	—		12	$	4,073	$	3,724
Commercial business		—		—		—		1		27		—
Residential prime		—		—		—		—		—		—
Home Equity		—		—		—		—		—		—
Indirect automobile		—		—		—		—		—		—
Credit card		—		—		—		—		—		—
Other		—		—		—		1		—		—
		1	$	1,545	$	—		14	$	4,100	$	3,724

	June 30, 2013				June 30, 2012
	Number of		Recorded		Number of		Recorded
(In thousands, except number of loans)	Loans		Investment		Loans		Investment
Commercial real estate		48	$	8,673		45	$	20,233
Commercial business		8		1,417		8		1,887
Residential prime		—		—		—		—
Home Equity		1		49		1		226
Indirect automobile		—		—		—		—
Credit card		—		—		—		—
Other		1		—		1		—
		58	$	10,139		55	$	22,346

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

XML

Basis of Presentation - Additional Information (Detail) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Basis Of Presentation [Line Items]
Company mortgage loans held for sale	$ 162,031,000		$ 162,031,000
Property write-downs	$ 1,402,000	$ 1,477,000	$ 2,556,000	$ 4,033,000
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		6
IBERIABANK Mortgage Company [Member]
Basis Of Presentation [Line Items]
Number of operating states	12		12

XML

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

6 Months Ended

Jun. 30, 2013

Transfers And Servicing [Abstract]

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

NOTE 9 – TRANSFERS AND SERVICING OF FINANCIAL ASSETS (INCLUDING MORTGAGE BANKING ACTIVITY)

Mortgage Banking Activity

IBERIABANK 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 six months ended June 30:

(Dollars in thousands)	2013			2012
Mortgage loans held for sale
Balance at beginning of period	$	267,475		$	153,013
Originations		1,207,676			1,042,020
Sales		(1,313,120	)		(1,014,464	)
Balance at end of period	$	162,031		$	180,569

(Dollars in thousands)	2013			2012
Detail of mortgage income
Fair value changes of derivatives and mortgage loans held for sale, net	$	(1,431	)	$	1,717
Gains on sales		37,790			29,980
Servicing and other income, net		280			206
	$	36,639		$	31,903

For the six months ended June 30, 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 as follows:

	June 30, 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	$	1,749	$	(458	)	$	1,291	$	1,234	$	(304	)	$	930

XML

Commitments and Contingencies - Summary of Financial Instruments Outstanding (Detail) (Credit Risk Contract [Member], USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Credit Risk Contract [Member]
Commitments Contingencies And Guarantees [Line Items]
Commitments to grant loans	$ 357,220	$ 192,295
Unfunded commitments under lines of credit	2,693,642	2,372,971
Commercial and standby letters of credit	94,797	62,207
Reserve for unfunded lending commitments	$ 10,342

XML

Goodwill and Other Acquired Intangible Assets - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2012	Jun. 30, 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

Investment Securities

6 Months Ended

Jun. 30, 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:

	June 30, 2013
			Gross		Gross			Estimated
	Amortized		Unrealized		Unrealized			Fair
(Dollars in thousands)	Cost		Gains		Losses			Value
Securities available for sale:
U.S. Government-sponsored enterprise obligations	$	430,701	$	1,814	$	(7,768	)	$	424,747
Obligations of state and political obligations		114,008		3,293		(218	)		117,083
Mortgage-backed securities		1,374,322		12,735		(18,317	)		1,368,740
Other securities		1,460		28		—			1,488
Total securities available for sale	$	1,920,491	$	17,870	$	(26,303	)	$	1,912,058
Securities held to maturity:
U.S. Government-sponsored enterprise obligations	$	34,465	$	771	$	—		$	35,236
Obligations of state and political obligations		89,005		1,945		(1,331	)		89,619
Mortgage-backed securities		39,770		396		(1,669	)		38,497
Total securities held to maturity	$	163,240	$	3,112	$	(3,000	)	$	163,352

	December 31, 2012
			Gross		Gross			Estimated
	Amortized		Unrealized		Unrealized			Fair
(Dollars in thousands)	Cost		Gains		Losses			Value
Securities available for sale:
U.S. Government-sponsored enterprise obligations	$	281,746	$	4,364	$	(386	)	$	285,724
Obligations of state and political obligations		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 obligations		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 $1,400,204,000 and $1,712,860,000 were pledged to secure public deposits and other borrowings at June 30, 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 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 the investment 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 aggregated by investment category and length of time that individual securities have been in a continuous loss position is as follows:

	June 30, 2013
	Less Than Twelve Months					Over Twelve Months					Total
	Gross			Estimated		Gross			Estimated		Gross			Estimated
	Unrealized			Fair		Unrealized			Fair		Unrealized			Fair
(Dollars in thousands)	Losses			Value		Losses			Value		Losses			Value
Securities available for sale:
U.S. Government-sponsored enterprise obligations	$	(7,768	)	$	283,840	$	—		$	—	$	(7,768	)	$	283,840
Obligations of state and political obligations		(10	)		481		(208	)		1,065		(218	)		1,546
Mortgage-backed securities		(17,927	)		778,907		(390	)		15,534		(18,317	)		794,441
Total securities available for sale	$	(25,705	)	$	1,063,228	$	(598	)	$	16,599	$	(26,303	)	$	1,079,827
Securities held to maturity:
Obligations of state and political obligations	$	(1,268	)	$	29,792	$	(63	)	$	1,264	$	(1,331	)	$	31,056
Mortgage-backed securities		(1,669	)		26,252		—			—		(1,669	)		26,252
Total securities held to maturity	$	(2,937	)	$	56,044	$	(63	)	$	1,264	$	(3,000	)	$	57,308

	December 31, 2012
	Less Than Twelve Months					Over Twelve Months					Total
	Gross			Estimated		Gross			Estimated		Gross			Estimated
	Unrealized			Fair		Unrealized			Fair		Unrealized			Fair
(Dollars in thousands)	Losses			Value		Losses			Value		Losses			Value
Securities available for sale:
U.S. Government-sponsored enterprise obligations	$	(386	)	$	59,741	$	—		$	—	$	(386	)	$	59,741
Obligations of state and political obligations		—			—		(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:
Obligations of state and political obligations	$	(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 June 30, 2013 and December, 31, 2012 to determine if there are losses that should be 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 June 30, 2013, 160 debt securities had unrealized losses of 2.51% of the securities’ amortized cost basis and 1.41% of the Company’s total amortized cost basis. The unrealized losses for each of the 160 securities relate to market interest rate changes. Four of the 160 securities have been in a continuous loss position for over twelve months at June 30, 2013. These four securities had an aggregate amortized cost basis and unrealized loss of $18,523,000 and $660,000, respectively. Two of the four securities were issued by either the Federal National Mortgage Association (Fannie Mae) or the Federal Home Loan Mortgage Corporation (Freddie Mac). Fannie Mae and Freddie Mac securities are rated AA+ by S&P and Aaa by Moodys. One of the securities in a continuous loss position for over twelve months was issued by a political subdivision. The bond issuer has a credit rating of A+ by S&P. In addition, the bond is insured by the AAA rated Texas Permanent School Fund and as a result, the Company concluded that an other-than-temporary impairment charge was not required at June 30, 2013. The remaining security in a continuous unrealized loss position for over twelve months was issued by a political subdivision and is 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 six 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 six months ended June 30, 2013 and 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 June 30, 2013 or December 31, 2012.

The amortized cost and estimated fair value of investment securities by maturity at June 30, 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
	Weighted					Estimated		Weighted					Estimated
	Average			Amortized		Fair		Average			Amortized		Fair
(Dollars in thousands)	Yield			Cost		Value		Yield			Cost		Value
Within one year or less		2.44	%	$	3,814	$	3,857		2.25	%	$	17,991	$	18,299
One through five years		1.36			245,643		245,107		2.49			24,104		24,760
After five through ten years		1.93			580,896		579,393		2.71			26,140		26,862
Over ten years		1.80			1,090,138		1,083,701		2.84			95,005		93,431
		1.79	%	$	1,920,491	$	1,912,058		2.70	%	$	163,240	$	163,352

The following is a summary of realized gains and losses from the sale of securities classified as available for sale. Gains or losses on securities sold are recorded on the trade date, using the specific identification method.

	Three Months Ended June 30					Six Months Ended June 30
(Dollars in thousands)	2013			2012		2013			2012
Realized gains	$	4		$	901	$	2,369		$	3,717
Realized losses		(70	)		—		(108	)		(15	)
	$	(66	)	$	901	$	2,261		$	3,702

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

Other Equity Securities

At June 30, 2013 and December 31, 2012, the Company included the following securities in “Other assets” on the Company’s consolidated balance sheets:

	June 30		December 31
(Dollars in thousands)	2013		2012
Federal Home Loan Bank (FHLB) stock	$	10,312	$	16,860
Federal Reserve Bank (FRB) stock		28,098		28,155
Other investments		1,306		1,201
	$	39,716	$	46,216

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Consolidated Statements of Cash Flows (USD $)	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Cash Flows from Operating Activities
Net income	$ 16,307,000	$ 31,953,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	13,346,000
Amortization of purchase accounting adjustments, net	(10,879,000)
(Reversal of) provision for loan losses	(1,569,000)	11,752,000
Noncash compensation expense	(5,261,000)	(4,897,000)
(Gain) loss on sale of assets	(49,000)
Gain on sale of available for sale investments	(2,261,000)
Gain on sale of OREO	(2,975,000)
Loss on abandonment of fixed assets	4,618,000
Impairment	31,813,000
Amortization of premium/discount on investments	10,683,000
Derivative (gains) losses on swaps	(209,000)
(Benefit) provision for deferred income taxes	(12,198,000)
Mortgage loans held for sale
Originations	(1,207,676,000)
Proceeds from sales	1,350,910,000
Gain on sale of loans, net	(37,790,000)
Tax benefit associated with share-based payment arrangements	(417,000)
Decrease (Increase) in other assets	732,000
Other operating activities, net	5,798,000
Net Cash Provided by Operating Activities	163,445,000
Cash Flows from Investing Activities
Proceeds from sales of securities available for sale	44,675,000
Proceeds from maturities, prepayments and calls of securities available for sale	494,593,000
Purchases of securities available for sale	(760,640,000)
Proceeds from maturities, prepayments and calls of securities held to maturity	47,101,000
Purchases of securities held to maturity	(5,901,000)
FDIC reimbursement of recoverable covered asset losses	49,582,000
Increase in loans receivable, net	(427,489,000)
Proceeds from sale of premises and equipment	639,000
Purchases of premises and equipment	(8,735,000)
Proceeds from disposition of real estate owned	44,082,000
Other investing activities, net	11,400,000
Net Cash Used in Investing Activities	(510,693,000)
Cash Flows from Financing Activities
(Decrease) increase in deposits, net of deposits acquired	(106,219,000)
Net change in short-term borrowings, net of borrowings acquired	(13,668,000)
Proceeds from long-term debt	2,230,000
Repayments of long-term debt	(141,296,000)
Dividends paid to shareholders	(20,122,000)
Proceeds from sale of treasury stock for stock options exercised	4,238,000	1,337,000
Payments to repurchase common stock	(1,744,000)
Tax benefit associated with share-based payment arrangements	417,000	285,000
Net Cash (Used in) Provided by Financing Activities	(276,164,000)
Net (Decrease) Increase In Cash and Cash Equivalents	(623,412,000)
Cash and Cash Equivalents at Beginning of Period	970,977,000
Cash and Cash Equivalents at End of Period	347,565,000
Supplemental Schedule of Noncash Activities
Acquisition of real estate in settlement of loans	51,733,000
Transfers of property into Other Real Estate	51,733,000
Supplemental Disclosures
Interest on deposits and borrowings	25,797,000
Income taxes, net	19,558,000
Restated [Member]
Cash Flows from Operating Activities
Net income		31,953,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization		9,987,000
Amortization of purchase accounting adjustments, net		(18,895,000)
(Reversal of) provision for loan losses		11,752,000
Noncash compensation expense		4,897,000
(Gain) loss on sale of assets		49,000
Gain on sale of available for sale investments		(3,702,000)
Gain on sale of OREO		(2,614,000)
Loss on abandonment of fixed assets		2,743,000
Impairment
Amortization of premium/discount on investments		9,949,000
Derivative (gains) losses on swaps
(Benefit) provision for deferred income taxes		712,000
Mortgage loans held for sale
Originations		(1,042,020,000)
Proceeds from sales		1,044,444,000
Gain on sale of loans, net		(29,980,000)
Tax benefit associated with share-based payment arrangements		(285,000)
Decrease (Increase) in other assets		(976,000)
Other operating activities, net		11,922,000
Net Cash Provided by Operating Activities		29,936,000
Cash Flows from Investing Activities
Proceeds from sales of securities available for sale		82,392,000
Proceeds from maturities, prepayments and calls of securities available for sale		528,943,000
Purchases of securities available for sale		(697,042,000)
Proceeds from maturities, prepayments and calls of securities held to maturity		27,805,000
Purchases of securities held to maturity		(24,056,000)
FDIC reimbursement of recoverable covered asset losses		85,072,000
Increase in loans receivable, net		(362,615,000)
Proceeds from sale of premises and equipment		354,000
Purchases of premises and equipment		(17,558,000)
Proceeds from disposition of real estate owned		56,812,000
Other investing activities, net		(998,000)
Net Cash Used in Investing Activities		(320,891,000)
Cash Flows from Financing Activities
(Decrease) increase in deposits, net of deposits acquired		127,846,000
Net change in short-term borrowings, net of borrowings acquired		245,225,000
Proceeds from long-term debt		9,858,000
Repayments of long-term debt		(43,043,000)
Dividends paid to shareholders		(20,025,000)
Proceeds from sale of treasury stock for stock options exercised		1,337,000
Payments to repurchase common stock		(3,778,000)
Tax benefit associated with share-based payment arrangements		285,000
Net Cash (Used in) Provided by Financing Activities		317,705,000
Net (Decrease) Increase In Cash and Cash Equivalents		26,750,000
Cash and Cash Equivalents at Beginning of Period		573,296,000
Cash and Cash Equivalents at End of Period		600,046,000
Supplemental Schedule of Noncash Activities
Acquisition of real estate in settlement of loans		62,306,000
Transfers of property into Other Real Estate		62,306,000
Supplemental Disclosures
Interest on deposits and borrowings		34,388,000
Income taxes, net		$ 10,833,000

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Commitments and Contingencies - Additional Information (Detail) (USD $)	Jun. 30, 2013
Commitments Contingencies And Guarantees [Line Items]
Fair value of guarantees under commercial and standby letters of credit	$ 948,000
Minimum [Member]
Commitments Contingencies And Guarantees [Line Items]
Estimated losses associated with legal proceedings	500,000
Maximum [Member]
Commitments Contingencies And Guarantees [Line Items]
Estimated losses associated with legal proceedings	$ 2,100,000

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Investment Securities - Schedule of Amortized Cost and Estimated Fair Value of Investment Securities by Maturity (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Investments Debt And Equity Securities [Abstract]
Securities Available for Sale, Weighted Average Yield, Within one year or less	2.44%
Securities Available for Sale, Weighted Average Yield, One through five years	1.36%
Securities Available for Sale, Weighted Average Yield, After five through ten years	1.93%
Securities Available for Sale, Weighted Average Yield, Over ten years	1.80%
Securities Available for Sale, Weighted Average Yield, Totals	1.79%
Securities Available for Sale, Amortized Cost, Within one year or less	$ 3,814
Securities Available for Sale, Amortized Cost, One through five years	245,643
Securities Available for Sale, Amortized Cost, After five through ten years	580,896
Securities Available for Sale, Amortized Cost, Over ten years	1,090,138
Securities Available for Sale, Amortized Cost, Totals	1,920,491
Securities Available for Sale, Fair Value, Within one year or less	3,857
Securities Available for Sale, Fair Value, One through five years	245,107
Securities Available for Sale, Fair Value, After five through ten years	579,393
Securities Available for Sale, Fair Value, Over ten years	1,083,701
Securities Available for Sale, Fair Value, Totals	1,912,058
Securities Held to Maturity, Weighted Average Yield, Within one year or less	2.25%
Securities Held to Maturity, Weighted Average Yield, One through five years	2.49%
Securities Held to Maturity, Weighted Average Yield, After five through ten years	2.71%
Securities Held to Maturity, Weighted Average Yield, Over ten years	2.84%
Securities Held to Maturity, Weighted Average Yield, Totals	2.70%
Securities Held to Maturity, Amortized Cost, Within one year or less	17,991
Securities Held to Maturity, Amortized Cost, One through five years	24,104
Securities Held to Maturity, Amortized Cost, After five through ten years	26,140
Securities Held to Maturity, Amortized Cost, Over ten years	95,005
Securities Held to Maturity, Amortized Cost, Totals	163,240	205,062
Securities Held to Maturity, Fair Value, Within one year or less	18,299
Securities Held to Maturity, Fair Value, One through five years	24,760
Securities Held to Maturity, Fair Value, After five through ten years	26,862
Securities Held to Maturity, Fair Value, Over ten years	93,431
Securities Held to Maturity, Fair Value, Totals	$ 163,352	$ 211,498

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Earnings Per Share - Additional Information (Detail)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Earnings Per Share [Abstract]
Weighted average number of shares, Recognition and Retention Plan	652,683	620,924	647,332	605,469
Weighted average number of shares, treasury stock	2,221,550	1,642,217	2,279,103	1,683,003
Stock options having antidilutive effect on earnings per share	792,893	743,628	787,893	612,200

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Share-Based Compensation - Additional Information (Detail) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation maximum option term (in years)			10 years
Future awards shares under approved incentive compensation plans	499,152		499,152
Minimum vesting period (in years)			1 year 6 months
Maximum vesting period (in years)			7 years
Excess tax benefits as financing cash inflows			$ 417,000	$ 285,000
Net cash proceeds from exercise of stock options			4,238,000	1,337,000
Aggregate intrinsic value of shares underlying outstanding stock options	3,324,000		3,324,000
Aggregate intrinsic value of shares underlying exercisable stock options	2,797,000		2,797,000
Total intrinsic value of options exercised			1,597,000	1,005,000
Compensation expense based on the number of share equivalents vested	1,112,000	430,000	1,811,000	1,181,000
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unearned compensation vesting period (in years)	7		7
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unearned compensation vesting period (in years)	3		3
Phantom Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Minimum vesting period (in years)			5 years
Maximum vesting period (in years)			7 years
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unearned share-based compensation associated with awards	4,999,000		4,999,000
Unrecognized compensation cost related to stock options expected to be recognized over a weighted-average period			4 years 10 months 24 days
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unearned share-based compensation associated with awards	$ 25,379,000		$ 25,379,000

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

6 Months Ended

Jun. 30, 2013

Components of Mortgage Banking Activity

The following table details the mortgage banking activity as of and for the six months ended June 30:

(Dollars in thousands)	2013			2012
Mortgage loans held for sale
Balance at beginning of period	$	267,475		$	153,013
Originations		1,207,676			1,042,020
Sales		(1,313,120	)		(1,014,464	)
Balance at end of period	$	162,031		$	180,569

(Dollars in thousands)	2013			2012
Detail of mortgage income
Fair value changes of derivatives and mortgage loans held for sale, net	$	(1,431	)	$	1,717
Gains on sales		37,790			29,980
Servicing and other income, net		280			206
	$	36,639		$	31,903

Schedule of Definite-Lived Intangible Assets

Definite-lived intangible assets had the following carrying values for the periods indicated:

	June 30, 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	$	(28,534	)	$	16,872	$	45,406	$	(26,284	)	$	19,122
Customer relationship intangible asset		1,348		(524	)		824		1,348		(410	)		938
	$	46,754	$	(29,058	)	$	17,696	$	46,754	$	(26,694	)	$	20,060

Mortgage Servicing Rights [Member]

Schedule of Definite-Lived Intangible Assets

Mortgage servicing rights had the following carrying values as follows:

	June 30, 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	$	1,749	$	(458	)	$	1,291	$	1,234	$	(304	)	$	930

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Subsequent Events - Additional Information (Detail) (Subsequent Events [Member])	6 Months Ended
	Jun. 30, 2013
Subsequent Event [Line Items]
Minimum common equity Tier 1 capital ratio	4.00%
Initial capital conservation buffer ratio	0.625%
Minimum Tier 1 Capital requirement of risk-weighted assets increased	6.00%
Minimum [Member]
Subsequent Event [Line Items]
Minimum common equity Tier 1 capital ratio	4.50%
Minimum common equity Tier 1 ratio plus capital conservation buffer	2.50%
Minimum Total Capital ratio	8.00%
Maximum [Member]
Subsequent Event [Line Items]
Minimum common equity Tier 1 ratio plus capital conservation buffer	7.00%

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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		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Other Comprehensive Income Loss [Abstract]
Unrealized holding gains (losses) arising during the period, Before-Tax Amount	$ (42,303)	$ 3,195	$ (44,297)	$ 2,139
Less: reclassification adjustment for (gains) included in net income, Before-Tax Amount	66	(901)	(2,261)	(3,702)
Net unrealized gains (losses), Before-Tax Amount	(42,237)	2,294	(46,558)	(1,563)
Change in fair value of derivative instruments designated as cash flow hedges during the period, Before-Tax Amount	(1,121)	(7,634)	952	(2,683)
Less: reclassification adjustment for losses (gains) included in net income, Before-Tax Amount	(33)	400	392	786
Fair value of derivative instruments designated as cash flow hedges, Before-Tax Amount	(1,154)	(7,234)	1,344	(1,897)
Total other comprehensive income (loss), Before-Tax Amount	(43,391)	(4,940)	(45,214)	(3,460)
Unrealized holding gains (losses) arising during the period, Tax (Expense) Benefit	14,806	(1,118)	15,504	(749)
Less: reclassification adjustment for (gains) included in net income, Tax (Expense) Benefit	(23)	315	791	1,296
Net unrealized gains (losses), Tax (Expense) Benefit	14,783	(803)	16,295	547
Change in fair value of derivative instruments designated as cash flow hedges during the period, Tax (Expense) Benefit	392	2,672	(333)	939
Less: reclassification adjustment for losses (gains) included in net income, Tax (Expense) Benefit	12	(140)	(137)	(275)
Fair value of derivative instruments designated as cash flow hedges, Tax (Expense) Benefit	404	2,532	(470)	664
Total other comprehensive income (loss), Tax (Expense) Benefit	15,187	1,729	15,825	1,211
Unrealized holding gains (losses) arising during the period, Net-of-Tax Amount	(27,497)	2,077	(28,793)	1,390
Less: reclassification adjustment for (gains) included in net income, Net-of-Tax Amount	43	(586)	(1,470)	(2,406)
Net unrealized gains (losses), Net-of-Tax Amount	(27,454)	1,491	(30,263)	(1,016)
Change in fair value of derivative instruments designated as cash flow hedges during the period, Net-of-Tax Amount	(729)	(4,962)	619	(1,744)
Less: reclassification adjustment for losses (gains) included in net income, Net-of-Tax Amount	(21)	260	255	511
Fair value of derivative instruments designated as cash flow hedges, Net-of-Tax Amount	(750)	(4,702)	874	(1,233)
Other comprehensive income (loss), net of tax	$ (28,204)	$ (3,211)	$ (29,389)	$ (2,249)

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Share-Based Compensation - Schedule of Share and Dividend Equivalent Share Award Activity (Detail) (USD $)	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Number of share equivalents, Beginning Balance	318,729	232,921
Number of share equivalents, Granted	163,498	106,351
Number of share equivalents, Forfeited share equivalents	(15,121)	(4,443)
Number of share equivalents, Vested share equivalents	(40,185)	(12,785)
Number of share equivalents, Ending Balance	426,921	322,044
Dividend equivalents, Beginning Balance	16,035	8,942
Dividend equivalents, Granted	5,899	4,347
Dividend equivalents, Forfeited share equivalents	(641)	(156)
Dividend equivalents, Vested share equivalents	(2,876)	(805)
Dividend equivalents, Ending Balance	18,417	12,328
Dividend equivalents, Beginning Balance	334,764	241,863
Dividend equivalents, Granted	169,397	110,698
Dividend equivalents, Forfeited share equivalents	(15,762)	(4,599)
Dividend equivalents, Vested share equivalents	(43,061)	(13,590)
Dividend equivalents, Ending Balance	445,338	334,372
Value of share equivalents, Beginning Balance	$ 16,444,000	$ 11,924,000
Value of share equivalents, Granted	9,081,000	5,585,000
Value of share equivalents, Forfeited share equivalents	(845,000)	(232,000)
Value of share equivalents, Vested share equivalents	(2,156,000)	(691,000)
Value of share equivalents, Ending Balance	$ 23,875,000	$ 16,869,000

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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	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	$ 251,603	$ 193,761
(Reversal of) Provision for loan losses	(1,569)	11,752
(Decrease) Increase in FDIC loss share receivable	(55,085)	10,633
Transfer of balance to OREO	(17,685)	(12,997)
Transfer of balance to the RUFC	(9,828)
Loans charged off	(6,583)	(17,680)
Recoveries	2,050	1,816
Balance at end of period	162,903	187,285
Balance at beginning of period
Transfer of balance from the allowance for loan losses	9,828
Provision for unfunded commitments	514
Balance at end of period	10,342
Balance at end of period	8,740,134
Balance at end of period	8,246,977
Non-Covered Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	83,027	74,861
(Reversal of) Provision for loan losses	(1,594)	9,570
Transfer of balance to OREO	(973)	(308)
Transfer of balance to the RUFC	(9,828)
Loans charged off	(4,249)	(4,397)
Recoveries	2,050	1,797
Balance at end of period	68,433	81,523
Balance at beginning of period
Transfer of balance from the allowance for loan losses	9,828
Provision for unfunded commitments	514
Balance at end of period	10,342
Allowance on loans individually evaluated for impairment	325	1,695
Allowance on loans collectively evaluated for impairment	68,108	79,828
Balance at end of period	7,984,822	6,546,365
Balance at end of period individually evaluated for impairment	31,958	33,081
Balance at end of period collectively evaluated for impairment	7,952,864	6,513,284
Balance at end of period acquired with deteriorated credit quality	47,153	40,181
Covered Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	168,576	118,900
(Reversal of) Provision for loan losses	25	2,182
(Decrease) Increase in FDIC loss share receivable	(55,085)	10,633
Transfer of balance to OREO	(16,712)	(12,689)
Loans charged off	(2,334)	(13,283)
Recoveries		19
Balance at end of period	94,470	105,762
Balance at beginning of period
Allowance on loans individually evaluated for impairment
Allowance on loans collectively evaluated for impairment	94,470	105,762
Balance at end of period		1,190,147
Balance at end of period	918,215
Balance at end of period individually evaluated for impairment
Balance at end of period collectively evaluated for impairment	918,215	1,190,147
Balance at end of period acquired with deteriorated credit quality	172,043	228,350
Commercial Real Estate [Member] | Non-Covered Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	38,264	35,604
(Reversal of) Provision for loan losses	(7,459)	2,320
Transfer of balance to OREO	(264)	(76)
Transfer of balance to the RUFC	(2,939)
Loans charged off	(807)	(1,154)
Recoveries	500	654
Balance at end of period	27,295	37,348
Balance at beginning of period
Transfer of balance from the allowance for loan losses	2,939
Provision for unfunded commitments	545
Balance at end of period	3,484
Allowance on loans individually evaluated for impairment	72	1,307
Allowance on loans collectively evaluated for impairment	27,223	36,041
Balance at end of period	3,224,078	2,660,509
Balance at end of period individually evaluated for impairment	16,525	28,841
Balance at end of period collectively evaluated for impairment	3,207,553	2,631,668
Balance at end of period acquired with deteriorated credit quality	40,015	34,650
Commercial Real Estate [Member] | Covered Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	100,871	69,175
(Reversal of) Provision for loan losses	27	2,821
(Decrease) Increase in FDIC loss share receivable	(26,737)	11,238
Transfer of balance to OREO	(12,178)	(8,545)
Loans charged off	(2,334)	(13,143)
Recoveries		16
Balance at end of period	59,649	61,562
Allowance on loans individually evaluated for impairment
Allowance on loans collectively evaluated for impairment	59,649	61,562
Balance at end of period		653,354
Balance at end of period	520,160
Balance at end of period individually evaluated for impairment
Balance at end of period collectively evaluated for impairment	520,160	653,354
Balance at end of period acquired with deteriorated credit quality	132,565	170,803
Commercial Business [Member] | Non-Covered Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	28,721	25,705
(Reversal of) Provision for loan losses	557	4,576
Transfer of balance to OREO	(90)
Transfer of balance to the RUFC	(3,497)
Loans charged off	(395)	(435)
Recoveries	259	61
Balance at end of period	25,555	29,907
Balance at beginning of period
Transfer of balance from the allowance for loan losses	3,497
Provision for unfunded commitments	12
Balance at end of period	3,509
Allowance on loans individually evaluated for impairment	116	201
Allowance on loans collectively evaluated for impairment	25,439	29,706
Balance at end of period	2,618,963	2,180,479
Balance at end of period individually evaluated for impairment	14,014	2,402
Balance at end of period collectively evaluated for impairment	2,604,949	2,178,077
Balance at end of period acquired with deteriorated credit quality	3,468	560
Commercial Business [Member] | Covered Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	11,375	9,788
(Reversal of) Provision for loan losses		848
(Decrease) Increase in FDIC loss share receivable	(2,672)	1,097
Transfer of balance to OREO	(314)	(119)
Balance at end of period	8,389	11,614
Allowance on loans individually evaluated for impairment
Allowance on loans collectively evaluated for impairment	8,389	11,614
Balance at end of period		125,681
Balance at end of period	68,957
Balance at end of period individually evaluated for impairment
Balance at end of period collectively evaluated for impairment	68,957	125,681
Balance at end of period acquired with deteriorated credit quality	2,005	3,842
Mortgage [Member] | Non-Covered Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	2,125	897
(Reversal of) Provision for loan losses	2,961	712
Transfer of balance to OREO	(612)	(226)
Transfer of balance to the RUFC	(40)
Loans charged off	(2,603)	(246)
Recoveries	188	21
Balance at end of period	2,019	1,158
Balance at beginning of period
Transfer of balance from the allowance for loan losses	40
Balance at end of period	40
Allowance on loans individually evaluated for impairment	137	187
Allowance on loans collectively evaluated for impairment	1,882	971
Balance at end of period	350,842	235,221
Balance at end of period individually evaluated for impairment	1,152	1,612
Balance at end of period collectively evaluated for impairment	349,690	233,609
Balance at end of period acquired with deteriorated credit quality	383
Consumer [Member] | Non-Covered Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	13,917	12,655
(Reversal of) Provision for loan losses	2,347	1,962
Transfer of balance to OREO	(7)	(6)
Transfer of balance to the RUFC	(3,352)
Loans charged off	(444)	(2,562)
Recoveries	1,103	1,061
Balance at end of period	13,564	13,110
Balance at beginning of period
Transfer of balance from the allowance for loan losses	3,352
Provision for unfunded commitments	(43)
Balance at end of period	3,309
Allowance on loans collectively evaluated for impairment	13,564	13,110
Balance at end of period	1,790,939	1,470,156
Balance at end of period individually evaluated for impairment	267	226
Balance at end of period collectively evaluated for impairment	1,790,672	1,469,930
Balance at end of period acquired with deteriorated credit quality	3,287	4,971
Consumer [Member] | Covered Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	33,764	18,753
(Reversal of) Provision for loan losses	(1)	62
(Decrease) Increase in FDIC loss share receivable	(18,603)	(3,056)
Transfer of balance to OREO	1	(825)
Loans charged off		(9)
Recoveries		3
Balance at end of period	15,161	14,928
Allowance on loans individually evaluated for impairment
Allowance on loans collectively evaluated for impairment	15,161	14,928
Balance at end of period		227,544
Balance at end of period	161,444
Balance at end of period individually evaluated for impairment
Balance at end of period collectively evaluated for impairment	161,444	227,544
Balance at end of period acquired with deteriorated credit quality	19,504	24,402
Unallocated [Member] | Non-Covered Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period
(Reversal of) Provision for loan losses
Transfer of balance to OREO
Transfer of balance to the RUFC
Loans charged off
Recoveries
Balance at end of period
Balance at beginning of period
Transfer of balance from the allowance for loan losses
Provision for unfunded commitments
Balance at end of period
Allowance on loans individually evaluated for impairment
Allowance on loans collectively evaluated for impairment
Balance at end of period
Balance at end of period individually evaluated for impairment
Balance at end of period collectively evaluated for impairment
Balance at end of period acquired with deteriorated credit quality
Unallocated [Member] | Covered Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period
(Reversal of) Provision for loan losses
(Decrease) Increase in FDIC loss share receivable
Transfer of balance to OREO
Loans charged off
Recoveries
Balance at end of period
Allowance on loans individually evaluated for impairment
Allowance on loans collectively evaluated for impairment
Balance at end of period
Balance at end of period
Balance at end of period individually evaluated for impairment
Balance at end of period collectively evaluated for impairment
Balance at end of period acquired with deteriorated credit quality
Mortgage [Member] | Covered Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	22,566	21,184
(Reversal of) Provision for loan losses	(1)	(1,549)
(Decrease) Increase in FDIC loss share receivable	(7,073)	1,354
Transfer of balance to OREO	(4,221)	(3,200)
Loans charged off		(131)
Balance at end of period	11,271	17,658
Allowance on loans individually evaluated for impairment
Allowance on loans collectively evaluated for impairment	11,271	17,658
Balance at end of period		183,568
Balance at end of period	167,654
Balance at end of period individually evaluated for impairment
Balance at end of period collectively evaluated for impairment	167,654	183,568
Balance at end of period acquired with deteriorated credit quality	$ 17,969	$ 29,303

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Loans Receivable - Schedule of Carrying Amount of Acquired Covered Loans (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Loans Receivable [Line Items]
Acquired Impaired Loans	$ 172,043	$ 213,645
Acquired Performing Loans	746,172	879,111
Total Covered Loans	918,215	1,092,756
Commercial Loans [Member]
Loans Receivable [Line Items]
Acquired Impaired Loans	134,570	170,499
Acquired Performing Loans	454,547	557,395
Total Covered Loans	589,117	727,894
Residential Mortgage Loans [Member]
Loans Receivable [Line Items]
Acquired Impaired Loans	17,969	20,232
Acquired Performing Loans	149,685	166,932
Total Covered Loans	167,654	187,164
Consumer and Other Loans [Member]
Loans Receivable [Line Items]
Acquired Impaired Loans	19,504	22,914
Acquired Performing Loans	141,940	154,784
Total Covered Loans	161,444	177,698
Real Estate [Member] | Commercial Loans [Member]
Loans Receivable [Line Items]
Acquired Impaired Loans	132,565	167,742
Acquired Performing Loans	387,595	473,101
Total Covered Loans	520,160	640,843
Business [Member] | Commercial Loans [Member]
Loans Receivable [Line Items]
Acquired Impaired Loans	2,005	2,757
Acquired Performing Loans	66,952	84,294
Total Covered Loans	68,957	87,051
Residential 1-4 Family [Member] | Residential Mortgage Loans [Member]
Loans Receivable [Line Items]
Acquired Impaired Loans	17,969	20,232
Acquired Performing Loans	149,685	166,932
Total Covered Loans	167,654	187,164
Construction/ Owner Occupied [Member] | Residential Mortgage Loans [Member]
Loans Receivable [Line Items]
Acquired Impaired Loans
Acquired Performing Loans
Total Covered Loans
Home Equity [Member] | Consumer and Other Loans [Member]
Loans Receivable [Line Items]
Acquired Impaired Loans	18,791	22,094
Acquired Performing Loans	139,058	152,118
Total Covered Loans	157,849	174,212
Indirect Automobile [Member] | Consumer and Other Loans [Member]
Loans Receivable [Line Items]
Acquired Impaired Loans
Acquired Performing Loans
Total Covered Loans
Consumer - Other [Member] | Consumer and Other Loans [Member]
Loans Receivable [Line Items]
Acquired Impaired Loans	713	820
Acquired Performing Loans	2,882	2,666
Total Covered Loans	$ 3,595	$ 3,486

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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		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Compensation expense related to stock options	$ 533	$ 542	$ 1,066	$ 983
Income tax benefit related to stock options	$ 187	$ 190	$ 374	$ 344
Impact on basic earnings per share	$ 0.01	$ 0.01	$ 0.02	$ 0.02
Impact on diluted earnings per share	$ 0.01	$ 0.01	$ 0.02	$ 0.02

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Derivative Instruments and Other Hedging Activities

6 Months Ended

Jun. 30, 2013

Derivative Instruments And Hedging Activities Disclosure [Abstract]

Derivative Instruments and Other Hedging Activities

NOTE 12 – DERIVATIVE INSTRUMENTS AND OTHER HEDGING ACTIVITIES

Information pertaining to outstanding derivative instruments is as follows:

	Balance Sheet	Asset Derivatives Fair Value				Balance Sheet	Liability Derivatives Fair Value
(Dollars in thousands)	Location	June 30, 2013		December 31, 2012		Location	June 30, 2013		December 31, 2012
Derivatives designated as hedging instruments under ASC Topic 815:
Interest rate contracts	Other assets	$	—	$	499	Other liabilities	$	—	$	1,843
Total derivatives designated as hedging instruments under ASC Topic 815		$	—	$	499		$	—	$	1,843
Derivatives not designated as hedging instruments under ASC Topic 815:
Interest rate contracts	Other assets	$	13,917	$	25,940	Other liabilities	$	13,917	$	25,940
Forward sales contracts	Other assets		7,274		2,774	Other liabilities		330		343
Written and purchased options	Other assets		13,826		12,906	Other liabilities		12,078		8,764
Total derivatives not designated as hedging instruments under ASC Topic 815		$	35,017	$	41,620		$	26,325	$	35,047
Total derivatives		$	35,017	$	42,119		$	26,325	$	36,890

	Asset Derivatives Notional Amount				Liability Derivatives Notional Amount
(Dollars in thousands)	June 30, 2013		December 31, 2012		June 30, 2013		December 31, 2012
Derivatives designated as hedging instruments under ASC Topic 815:
Interest rate contracts	$	—	$	35,000	$	—	$	35,000
Total derivatives designated as hedging instruments under ASC Topic 815	$	—	$	35,000	$	—	$	35,000
Derivatives not designated as hedging instruments under ASC Topic 815:
Interest rate contracts	$	380,211	$	374,536	$	380,211	$	374,536
Forward sales contracts		226,136		212,028		38,935		53,269
Written and purchased options		342,242		388,793		272,728		185,885
Total derivatives not designated as hedging instruments under ASC Topic 815	$	948,589	$	975,357	$	691,874	$	613,690
Total derivatives	$	948,589	$	1,010,357	$	691,874	$	648,690

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, the counterparty would be entitled to the collateral.

At June 30, 2013 and December 31, 2012, the Company was required to post $2,850,000 and $2,650,000 respectively 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 June 30, 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 reconciles the gross amounts presented in the consolidated balance sheets to the net amounts that would result in the event of offset.

	June 30, 2013
(Dollars in thousands)	Gross Amounts		Gross Amounts Not Offset
	Presented in the		in the Balance Sheet
	Balance Sheet		Derivatives		Collateral (1)			Net
Derivatives subject to master netting arrangements
Derivative assets
Interest rate contracts designated as hedging instruments	$	—	$	—	$	—		$	—
Interest rate contracts not designated as hedging instruments		13,917		—		—			13,917
Written and purchased options		10,870		—		—			10,870
Total derivative assets subject to master netting arrangements	$	24,787	$	—	$	—		$	24,787
Derivative liabilities
Interest rate contracts designated as hedging instruments	$	—	$	—	$	—		$	—
Interest rate contracts not designated as hedging instruments		13,917		—		(5,965	)		7,952
Total derivative liabilities subject to master netting arrangements	$	13,917	$	—	$	(5,965	)	$	7,952

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

	December 31, 2012
(Dollars in thousands)	Gross Amounts		Gross Amounts Not Offset
	Presented in the		in the Balance Sheet
	Balance Sheet		Derivatives			Collateral (1)			Net
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 six months ended June 30, 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 June 30, 2013, the fair value of derivatives that will mature within the next twelve months is $231,000. 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.

Information pertaining to the effect of the hedging instruments on the consolidated financial statements is as follows.

	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)
	As of June 30					For the Three Months Ended June 30
(Dollars in thousands)	2013		2012				2013		2012				2013		2012
Derivatives in ASC Topic 815 Cash Flow Hedging Relationships
Interest rate contracts	$	—	$	(3,144	)	Other income (expense)	$	32	$	(400	)	Other income (expense)	$	—	$	—
	$	—	$	(3,144	)		$	32	$	(400	)		$	—	$	—

	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)
	As of June 30					For the Six Months Ended June 30
(Dollars in thousands)	2013		2012				2013			2012				2013		2012
Derivatives in ASC Topic 815 Cash Flow Hedging Relationships
Interest rate contracts	$	—	$	(3,144	)	Other income (expense)	$	(392	)	$	(787	)	Other income (expense)	$	—	$	—
	$	—	$	(3,144	)		$	(392	)	$	(787	)		$	—	$	—

	Location of Gain (Loss) Recognized in Income on Derivatives	Amount of Gain (Loss) Recognized in Income on Derivatives
		For the Three Months Ended June 30					For the Six Months Ended June 30
(Dollars in thousands)		2013			2012		2013			2012
Derivatives Not Designated as Hedging Instruments under ASC Topic 815
Interest rate contracts	Other income (expense)	$	1			—		—			—
Forward sales contracts	Mortgage Income		8,320			—		5,408			—
Written and purchased options	Mortgage Income		(4,815	)		1,660		(3,730	)		1,716
		$	3,506		$	1,660	$	1,678		$	1,716

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Loss Share Agreements and FDIC Loss Share Receivable

6 Months Ended

Jun. 30, 2013

Text Block [Abstract]

Loss Share Agreements and FDIC Loss Share Receivable

NOTE 8 – LOSS SHARE AGREEMENTS AND FDIC LOSS SHARE RECEIVABLE

Loss Sharing Agreements

In 2009, the Company acquired substantially all of the assets and liabilities of CSB, and certain assets and assumed certain deposit and other liabilities of Orion and Century. In 2010, the Company acquired certain assets and assumed certain deposit and other liabilities of Sterling. Excluding consumer loans acquired from Sterling, 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.

During the reimbursable loss periods, the FDIC will cover 80% of covered loan and foreclosed real estate losses up to certain thresholds for all four acquisitions, and 95% of losses that exceed contractual thresholds for CSB, Orion, and Century. The CapitalSouth reimbursable loss period ends during the third quarter of 2014 for all loans excluding single family residential loans and during the third quarter of 2019 for single family residential loans. The Century and Orion reimbursable loss periods end during the fourth quarter of 2014 for all loans excluding single family residential loans and during the fourth quarter of 2019 for single family residential loans. The Sterling reimbursable loss period ends during the third quarter of 2015 for all loans excluding single family residential loans and during the third quarter of 2020 for single family residential loans.

In addition, all loans excluding single family residential loans have a three year recovery period, which begins upon expiration of the reimbursable loss period. During the recovery periods, the Company must reimburse the FDIC for its share of any recovered losses, consistent with the covered loss reimbursement rates in effect during the reimbursable loss periods.

The Orion, Century, and Sterling loss share agreements include “clawback” provisions. The clawback provisions require the Company to make payments to the FDIC to the extent that specified cumulative loss floors are not incurred. Of the three loss share agreements that contain clawback provisions, cumulative losses under two of these agreements have exceeded the cumulative loss floors that would trigger a clawback payment. The loss floor has not yet been attained for the third agreement. However, the Company believes any clawback payments ultimately due under this agreement will be insignificant to the Company’s financial position, liquidity, and results of operations. Improvement in the performance of covered assets in excess of current expectations, particularly in regard to improvements in recoveries and/or reduced losses, through expiration of the recovery periods could result in reduced levels of cumulative losses that trigger the clawback provisions within any or all of the loss share agreements.

FDIC loss share receivable

The Company recorded indemnification assets in the form of FDIC loss share receivables as of the acquisition date of each of the four banks covered by loss share agreements. At acquisition, the indemnification assets represented the fair value of the expected cash flows to be received from the FDIC under the loss share agreements. Subsequent to acquisition, the FDIC loss share receivables are updated to reflect changes in actual and expected amounts collectible adjusted for amortization. Note 1 to these unaudited consolidated financial statements provides additional information regarding the Company’s FDIC loss share receivable accounting policy and basis of presentation.

The following is a summary of FDIC loss share receivable year-to-date activity:

	Six Months Ended June 30
(Dollars in thousands)	2013			2012
Balance at beginning of period	$	423,069		$	591,844
Change due to (reversal of) credit loss provision recorded on FDIC covered loans		(55,085	)		10,633
Amortization		(45,831	)		(56,411	)
Submission of reimburseable losses to the FDIC		(42,043	)		(72,527	)
Impairment		(31,813	)		—
Changes due to a change in cash flow assumptions on OREO and other		(7,257	)		(3,616	)
Balance at end of period	$	241,040		$	469,923

FDIC loss share receivables collectability assessment

The Company assesses the FDIC loss share receivables for collectability on a quarterly basis. Note 1 provides a description of the Company’s policy for assessing the FDIC loss share receivables for collectability. Based on the collectability analysis completed for the three months ended June 30, 2013, the Company concluded that the $241,040,000 FDIC loss share receivable is fully collectible as of June 30, 2013. See below for discussion of the impairment charge recognized for the three-month period ended March 31, 2013.

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, during the loss share receivable collectability assessment completed for the three-months ended March 31, 2013, the Company concluded that certain expected losses were probable of not being collected from either the FDIC or the customer because such projected losses were no longer expected to occur or were expected to occur beyond the reimbursable loss periods specified within 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 during 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 FDIC loss share receivables, be recognized in the interim period in which they occur. Recognition of the tax effect of the impairment during the three-month period ended March 31, 2013 resulted in an effective tax rate for that period, and subsequent year-to-date periods in 2013, that are not customary of the Company’s effective tax rate without recognition of this infrequent item.

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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		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012
Financing Receivable, Impaired [Line Items]
Recorded Investment	$ 47,189		$ 47,189		$ 50,079
Unpaid Principal Balance	47,618		47,618		51,071
Related Allowance	(429)		(429)		(992)
Average Recorded Investment	51,207	52,822	49,381	55,831
Interest Income Recognized	44	25	172	108
Commercial Loans [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	30,350		30,350		32,773
Unpaid Principal Balance	30,539		30,539		33,448
Related Allowance	(189)		(189)		(675)
Average Recorded Investment	33,035	37,209	30,517	39,717
Interest Income Recognized	44	25	145	76
Commercial Loans [Member] | With No Related Allowance Recorded [Member] | Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	16,077		16,077		26,151
Unpaid Principal Balance	16,077		16,077		26,151
Average Recorded Investment	21,452	30,999	22,871	31,888
Interest Income Recognized	24	20	63	58
Commercial Loans [Member] | With No Related Allowance Recorded [Member] | Business [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	13,823		13,823		1,824
Unpaid Principal Balance	13,823		13,823		1,824
Average Recorded Investment	10,942	2,693	6,891	3,951
Interest Income Recognized	17		73	2
Commercial Loans [Member] | With An Allowance Recorded [Member] | Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	141		141		3,464
Unpaid Principal Balance	193		193		3,663
Related Allowance	(52)		(52)		(199)
Average Recorded Investment	194	3,275	306	3,634
Interest Income Recognized		5	1	15
Commercial Loans [Member] | With An Allowance Recorded [Member] | Business [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	309		309		1,334
Unpaid Principal Balance	446		446		1,810
Related Allowance	(137)		(137)		(476)
Average Recorded Investment	447	242	449	244
Interest Income Recognized	3		8	1
Mortgage Loans [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	8,059		8,059		9,861
Unpaid Principal Balance	8,236		8,236		10,070
Related Allowance	(177)		(177)		(209)
Average Recorded Investment	8,613	6,458	8,913	6,535
Interest Income Recognized			13	16
Mortgage Loans [Member] | With An Allowance Recorded [Member] | Mortgage - Prime [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	8,059		8,059		9,861
Unpaid Principal Balance	8,236		8,236		10,070
Related Allowance	(177)		(177)		(209)
Average Recorded Investment	8,613	6,458	8,913	6,535
Interest Income Recognized			13	16
Mortgage Loans [Member] | With An Allowance Recorded [Member] | Home Equity [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	7,013		7,013		5,860
Unpaid Principal Balance	7,057		7,057		5,951
Related Allowance	(44)		(44)		(91)
Consumer Loans [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	8,780		8,780		7,445
Unpaid Principal Balance	8,843		8,843		7,553
Related Allowance	(63)		(63)		(108)
Average Recorded Investment	9,559	9,155	9,951	9,579
Interest Income Recognized			14	16
Consumer Loans [Member] | With An Allowance Recorded [Member] | Home Equity [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	7,356	7,094	7,541	7,315
Interest Income Recognized			7	11
Consumer Loans [Member] | With An Allowance Recorded [Member] | Indirect Automobile [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	1,006		1,006		865
Unpaid Principal Balance	1,012		1,012		868
Related Allowance	(6)		(6)		(3)
Average Recorded Investment	1,228	1,026	1,386	1,134
Interest Income Recognized			6	3
Consumer Loans [Member] | With An Allowance Recorded [Member] | Credit Card [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	416		416		413
Unpaid Principal Balance	424		424		424
Related Allowance	(8)		(8)		(11)
Average Recorded Investment	448	374	427	399
Consumer Loans [Member] | With An Allowance Recorded [Member] | Consumer - Other [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	345		345		307
Unpaid Principal Balance	350		350		310
Related Allowance	(5)		(5)		(3)
Average Recorded Investment	527	661	597	731
Interest Income Recognized			$ 1	$ 2

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Commitments and Contingencies

6 Months Ended

Jun. 30, 2013

Commitments And Contingencies Disclosure [Abstract]

Commitments and Contingencies

NOTE 15 – COMMITMENTS AND CONTINGENCIES

Off-balance sheet commitments

The Company is 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 credit policies used for these commitments are consistent with those used for on-balance sheet instruments. The Company’s exposure to credit loss in the event of nonperformance by another party represents the contractual amount of the financial instruments. At June 30, 2013, the fair value of guarantees under commercial and standby letters of credit was $948,000. This amount represents the unamortized fee associated with these guarantees and is included in the consolidated balance sheets of the Company. This fair value will decrease as the existing commercial and standby letters of credit approach their expiration dates.

The Company had the following financial instruments outstanding, whose contract amounts represent credit risk:

(Dollars in thousands)	June 30 2013		December 31 2012
Commitments to grant loans	$	357,220	$	192,295
Unfunded commitments under lines of credit		2,693,642		2,372,971
Commercial and standby letters of credit		94,797		62,207
Reserve for unfunded lending commitments		10,342		—

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 any, 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. See Note 7 for additional discussion related to the Company’s unfunded lending commitments.

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 litigations 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 $0.5 million and $2.1 million.

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Other Comprehensive Income

6 Months Ended

Jun. 30, 2013

Equity [Abstract]

Other Comprehensive Income

NOTE 13 – OTHER COMPREHENSIVE INCOME

The following is a summary of the tax effects of each component of other comprehensive income for the periods indicated:

	Three Months Ended June 30, 2013
(Dollars in thousands)	Before     Tax			Tax Expense     (Benefit)			Net-of-Tax     Amount
Unrealized gain on securities:
Unrealized holding losses arising during the period	$	(42,303	)	$	14,806		$	(27,497	)
Less: reclassification adjustment for losses included in net income		66			(23	)		43
Net unrealized losses		(42,237	)		14,783			(27,454	)
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	$	(1,121	)	$	392		$	(729	)
Less: reclassification adjustment for gains included in net income		(33	)		12			(21	)
Fair value of derivative instruments designated as cash flow hedges		(1,154	)		404			(750	)
Total other comprehensive income (loss)	$	(43,391	)	$	15,187		$	(28,204	)

	Three Months Ended June 30, 2012
(Dollars in thousands)	Before     Tax			Tax Expense     (Benefit)			Net-of-Tax     Amount
Unrealized gain on securities:
Unrealized holding gains arising during the period	$	3,195		$	(1,118	)	$	2,077
Less: reclassification adjustment for gains included in net income		(901	)		315			(586	)
Net unrealized gains		2,294			(803	)		1,491
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	$	(7,634	)	$	2,672		$	(4,962	)
Less: reclassification adjustment for losses included in net income		400			(140	)		260
Fair value of derivative instruments designated as cash flow hedges		(7,234	)		2,532			(4,702	)
Total other comprehensive income (loss)	$	(4,940	)	$	1,729		$	(3,211	)

	Six Months Ended June 30, 2013
(Dollars in thousands)	Before     Tax			Tax Expense     (Benefit)			Net-of-Tax     Amount
Unrealized gain on securities:
Unrealized holding losses arising during the period	$	(44,297	)	$	15,504		$	(28,793	)
Less: reclassification adjustment for gains included in net income		(2,261	)		791			(1,470	)
Net unrealized losses		(46,558	)		16,295			(30,263	)
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	$	952		$	(333	)	$	619
Less: reclassification adjustment for losses included in net income		392			(137	)		255
Fair value of derivative instruments designated as cash flow hedges		1,344			(470	)		874
Total other comprehensive income (loss)	$	(45,214	)	$	15,825		$	(29,389	)

	Six Months Ended June 30, 2012
(Dollars in thousands)	Before     Tax			Tax Expense     (Benefit)			Net-of-Tax     Amount
Unrealized gain on securities:
Unrealized holding gains arising during the period	$	2,139		$	(749	)	$	1,390
Less: reclassification adjustment for gains included in net income		(3,702	)		1,296			(2,406	)
Net unrealized losses		(1,563	)		547			(1,016	)
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	$	(2,683	)	$	939		$	(1,744	)
Less: reclassification adjustment for losses included in net income		786			(275	)		511
Fair value of derivative instruments designated as cash flow hedges		(1,897	)		664			(1,233	)
Total other comprehensive income (loss)	$	(3,460	)	$	1,211		$	(2,249	)

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Document and Entity Information	6 Months Ended
	Jun. 30, 2013	Jul. 31, 2013
Document Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2013
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	Q2
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		29,731,338

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Share-Based Compensation - Estimate Fair Value of Share-Based Awards with Weighted-Average Assumptions (Detail) (USD $)	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions And Methodology [Abstract]
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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Share-Based Compensation

6 Months Ended

Jun. 30, 2013

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Share-Based Compensation

NOTE 14 – 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 six months ended June 30, 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 June 30, 2013, future option or restricted stock awards of 499,152 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 June 30				For the Six Months Ended June 30
(Dollars in thousands, except per share data)	2013		2012		2013		2012
Compensation expense related to stock options	$	533	$	542	$	1,066	$	983
Income tax benefit related to stock options		187		190		374		344
Impact on basic earnings per share		0.01		0.01		0.02		0.02
Impact on diluted earnings per share		0.01		0.01		0.02		0.02

The Company reported $417,000 and $285,000 of excess tax benefits as financing cash inflows during the six months ended June 30, 2013 and 2012, respectively, related to the exercise and vesting of stock option exercises. Net cash proceeds from the exercise of stock options were $4,238,000 and $1,337,000 for the six months ended June 30, 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 six-month periods ended June 30:

	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 June 30, 2013, there was $4,999,000 of unrecognized compensation cost related to stock options which is expected to be recognized over a weighted-average period of 4.9 years.

The following table represents the activity related to stock options during the periods indicated.

	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		(44,278	)		29.28
Forfeited or expired		(26,164	)		58.17
Outstanding options, June 30, 2012		1,244,408		$	51.00		5.0 Years
Outstanding exercisable at June 30, 2012		788,594		$	49.19		3.2 Years
Outstanding options, December 31, 2012		1,236,075		$	51.48
Granted		75,722			52.36
Exercised		(116,324	)		36.43
Forfeited or expired		(31,270	)		55.39
Outstanding options, June 30, 2013		1,164,203		$	52.94		4.9 Years
Outstanding exercisable at June 30, 2013		774,446		$	52.73		3.4 Years

At June 30, 2013, the aggregate intrinsic value of shares underlying outstanding stock options and underlying exercisable stock options was $3,324,000 and $2,797,000. Total intrinsic value of options exercised was $1,597,000 and $1,005,000 for the six months ended June 30, 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 June 30, 2013, unearned share-based compensation associated with these awards totaled $25,379,000.

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 June 30				For the Six Months Ended June 30
(Dollars in thousands)	2013		2012		2013		2012
Compensation expense related to restricted stock	$	2,068	$	1,956	$	3,945	$	3,665

The following table represents unvested restricted stock award activity for the six months ended June 30:

	2013			2012
Balance at beginning of period		538,202			512,112
Granted		164,151			162,570
Forfeited		(26,866	)		(4,306	)
Earned and issued		(123,328	)		(107,418	)
Balance at end of period		552,159			562,958

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. The Company recorded $1,112,000 and $430,000, respectively, during the three months ended June 30, 2013 and 2012 and $1,811,000 and $1,181,000, respectively, during the six months ended June 30, 2013 and 2012, 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		106,351			4,347			110,698			5,585,000
Forfeited share equivalents		(4,443	)		(156	)		(4,599	)		(232,000	)
Vested share equivalents		(12,785	)		(805	)		(13,590	)		(691,000	)
Balance, June 30, 2012		322,044			12,328			334,372		$	16,869,000
Balance, December 31, 2012		318,729			16,035			334,764		$	16,444,000
Granted		163,498			5,899			169,397			9,081,000
Forfeited share equivalents		(15,121	)		(641	)		(15,762	)		(845,000	)
Vested share equivalents		(40,185	)		(2,876	)		(43,061	)		(2,156,000	)
Balance, June 30, 2013		426,921			18,417			445,338		$	23,875,000

(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 $53.61 and $50.45 on June 30, 2013 and 2012, respectively.

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Loans Receivable - Schedule of Troubled Debt Restructurings (Detail) (USD $)	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Commercial Loans [Member] | Commercial Real Estate Construction [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	677,000	645,000
Accruing Loans, Past Due Greater than 30 Days
Nonaccrual TDRs	8,064,000	19,848,000
Total TDRs	8,741,000	20,493,000
Commercial Loans [Member] | Business [Member]
Loans Receivable [Line Items]
Accruing Loans, Current	1,135,000	24,000
Accruing Loans, Past Due Greater than 30 Days
Nonaccrual TDRs	281,000	1,887,000
Total TDRs	1,416,000	1,911,000
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
Residential Mortgage Loans [Member] | Mortgage - Subprime [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]
Loans Receivable [Line Items]
Accruing Loans, Current	1,812,000	669,000
Accruing Loans, Past Due Greater than 30 Days
Nonaccrual TDRs	8,613,000	21,961,000
Total TDRs	10,425,000	22,630,000
Consumer and Other Loans [Member] | Home Equity [Member]
Loans Receivable [Line Items]
Accruing Loans, Current
Accruing Loans, Past Due Greater than 30 Days
Nonaccrual TDRs	268,000	226,000
Total TDRs	268,000	226,000
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] | 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] | Consumer - 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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Loans Receivable - Summary of Changes in Accretable Yields of Acquired Loans (Detail) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Loans Receivable [Line Items]
Balance	$ 356,393	$ 470,811
Transfers from nonaccretable difference to accretable yield	38,407
Accretion	(92,200)	(122,728)
Changes in expected cash flows not affecting nonaccretable differences (1)	74,879	1,119
Balance	377,479	349,202
Acquired Impaired Loans [Member]
Loans Receivable [Line Items]
Balance	76,623	83,834
Transfers from nonaccretable difference to accretable yield	6,368
Accretion	(10,973)	(12,878)
Changes in expected cash flows not affecting nonaccretable differences (1)	4,158	5,277
Balance	76,176	76,233
Acquired Performing Loans [Member]
Loans Receivable [Line Items]
Balance	279,770	386,977
Transfers from nonaccretable difference to accretable yield	32,039
Accretion	(81,227)	(109,850)
Changes in expected cash flows not affecting nonaccretable differences (1)	70,721	(4,158)
Balance	$ 301,303	$ 272,969

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Share-Based Compensation - Activity Related to Stock Options (Detail) (USD $)	6 Months Ended
	Jun. 30, 2013	Jun. 30, 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	(116,324)	(44,278)
Number of shares, Outstanding options, Forfeited or expired	(31,270)	(26,164)
Number of shares, Outstanding options, Ending balance	1,164,203	1,244,408
Number of shares, Exercisable options	774,446	788,594
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	$ 36.43	$ 29.28
Weighted average exercise price, Outstanding options, Forfeited or expired	$ 55.39	$ 58.17
Weighted average exercise price, Outstanding options, Ending balance	$ 52.94	$ 51.00
Weighted average exercise price, Exercisable options	$ 52.73	$ 49.19
Weighted average remaining contract life, Outstanding options, Ending period	4 years 10 months 24 days	5 years
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