10-Q

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

 ______________________________________

FORM 10-Q

______________________________________ 

(Mark One)

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

For the quarterly period ended June 30, 2014

OR

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

For the transition period from            To                

Commission file number 0-12508

______________________________________ 

S&T BANCORP, INC.

(Exact name of registrant as specified in its charter)

______________________________________ 

Pennsylvania	25-1434426
(State or other jurisdiction of incorporation or organization)	(IRS Employer Identification No.)
800 Philadelphia Street, Indiana, PA	15701
(Address of principal executive offices)	(zip code)

800-325-2265

(Registrant’s telephone number, including area code)

Not Applicable

(Former name, former address, and former fiscal year, if changed since last report)

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 (Section 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. See the definition of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer	¨	Accelerated filer	x
Non-accelerated filer	¨ (Do not check if a smaller reporting company)	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

APPLICABLE ONLY TO CORPORATE ISSUERS:

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

Common Stock, $2.50 Par Value - 29,796,397 shares as of July 31, 2014

INDEX

S&T BANCORP, INC. AND SUBSIDIARIES

		Page No.
PART I. FINANCIAL INFORMATION
Item 1.	Financial Statements
	Consolidated Balance Sheets - June 30, 2014 and December 31, 2013	3
	Consolidated Statements of Comprehensive Income - Three and Six Months Ended June 30, 2014 and 2013	4
	Consolidated Statements of Changes in Shareholders' Equity - Six Months Ended June 30, 2014 and 2013	5
	Consolidated Statements of Cash Flows - Six Months Ended June 30, 2014 and 2013	6
	Notes to Consolidated Financial Statements	7
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	42
Item 3.	Quantitative and Qualitative Disclosures about Market Risk	60
Item 4.	Controls and Procedures	61
PART II. OTHER INFORMATION
Item 1.	Legal Proceedings	63
Item 1A.	Risk Factors	63
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	63
Item 3.	Defaults Upon Senior Securities	63
Item 4.	Mine Safety Disclosures	63
Item 5.	Other Information	63
Item 6.	Exhibits	63
	Signatures	64

2

S&T BANCORP, INC. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS

	June 30, 2014			December 31, 2013
(dollars in thousands, except share data)	(Unaudited)			(Audited)
ASSETS
Cash and due from banks, including interest-bearing deposits of $54,575 and $53,594 at June 30, 2014 and December 31, 2013, respectively	$	130,235		$	108,356
Securities available-for-sale, at fair value	588,488			509,425
Loans held for sale	3,102			2,136
Portfolio loans, net of unearned income	3,725,079			3,566,199
Allowance for loan losses	(46,580		)	(46,255		)
Portfolio loans, net	3,678,499			3,519,944
Bank owned life insurance	61,348			60,480
Premises and equipment, net	36,665			36,615
Federal Home Loan Bank and other restricted stock, at cost	15,818			13,629
Goodwill	175,820			175,820
Other intangible assets, net	3,146			3,759
Other assets	94,909			103,026
Total Assets	$	4,788,030		$	4,533,190
LIABILITIES
Deposits:
Noninterest-bearing demand	$	1,089,999		$	992,779
Interest-bearing demand	307,897			312,790
Money market	301,719			281,403
Savings	1,024,050			994,805
Certificates of deposit	1,141,581			1,090,531
Total Deposits	3,865,246			3,672,308
Securities sold under repurchase agreements	25,269			33,847
Short-term borrowings	185,000			140,000
Long-term borrowings	20,636			21,810
Junior subordinated debt securities	45,619			45,619
Other liabilities	49,073			48,300
Total Liabilities	4,190,843			3,961,884
SHAREHOLDERS’ EQUITY
Common stock ($2.50 par value) Authorized—50,000,000 shares Issued—31,197,365 shares at June 30, 2014 and December 31, 2013 Outstanding—29,797,204 shares at June 30, 2014 and 29,737,725 shares at December 31, 2013	77,993			77,993
Additional paid-in capital	78,570			78,140
Retained earnings	485,277			468,158
Accumulated other comprehensive income (loss)	(6,026		)	(12,694		)
Treasury stock 1,400,161 shares at June 30, 2014 and 1,459,640 shares at December 31, 2013, (at cost)	(38,627		)	(40,291		)
Total Shareholders’ Equity	597,187			571,306
Total Liabilities and Shareholders’ Equity	$	4,788,030		$	4,533,190

See Notes to Consolidated Financial Statements

3

S&T BANCORP, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(Unaudited)

	Three Months Ended June 30,					Six Months Ended June 30,
(dollars in thousands, except per share data)	2014			2013		2014			2013
INTEREST INCOME
Loans, including fees	$	36,614		$	35,765	$	72,263		$	70,810
Investment Securities:
Taxable	2,184			1,879		4,167			3,742
Tax-exempt	979			815		1,908			1,648
Dividends	95			94		199			196
Total Interest Income	39,872			38,553		78,537			76,396
INTEREST EXPENSE
Deposits	2,476			2,951		4,986			6,153
Borrowings and junior subordinated debt securities	541			1,006		1,105			1,978
Total Interest Expense	3,017			3,957		6,091			8,131
NET INTEREST INCOME	36,855			34,596		72,446			68,265
Provision for loan losses	(1,134		)	1,023		(845		)	3,330
Net Interest Income After Provision for Loan Losses	37,989			33,573		73,291			64,935
NONINTEREST INCOME
Securities gains, net	40			—		41			2
Wealth management fees	2,837			2,820		5,792			5,396
Debit and credit card fees	2,724			3,150		5,226			5,601
Service charges on deposit accounts	2,574			2,495		5,083			4,943
Insurance fees	1,425			1,643		3,102			3,418
Mortgage banking	264			911		396			1,393
Gain on sale of merchant card servicing business	—			—		—			3,093
Other	1,907			1,848		3,547			3,827
Total Noninterest Income	11,771			12,867		23,187			27,673
NONINTEREST EXPENSE
Salaries and employee benefits	15,772			14,725		31,148			30,792
Data processing	2,219			2,137		4,314			4,801
Net occupancy	1,984			1,958		4,214			4,127
Furniture and equipment	1,277			1,230		2,548			2,538
Marketing	960			793		1,578			1,482
Other taxes	893			915		1,524			1,914
Professional services and legal	875			1,171		1,538			2,145
FDIC insurance	579			707		1,210			1,483
Other	5,606			4,750		11,005			10,720
Total Noninterest Expense	30,165			28,386		59,079			60,002
Income Before Taxes	19,595			18,054		37,399			32,606
Provision for income taxes	4,875			3,951		8,646			6,173
Net Income	$	14,720		$	14,103	$	28,753		$	26,433
Earnings per share—basic	$	0.49		$	0.47	$	0.97		$	0.89
Earnings per share—diluted	$	0.49		$	0.47	$	0.97		$	0.89
Dividends declared per share	$	0.17		$	0.15	$	0.33		$	0.30
Comprehensive Income	$	18,343		$	6,651	$	35,421		$	18,220

See Notes to Consolidated Financial Statements

4

S&T BANCORP, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY

(Unaudited)

(dollars in thousands, except shares and per share data)	Common Stock		Additional Paid-in Capital			Retained Earnings			Accumulated Other Comprehensive Income (Loss)			Treasury Stock			Total
Balance at January 1, 2013	$	77,993	$	77,458		$	436,039		$	(13,582	)	$	(40,486	)	$	537,422
Net income for six months ended June 30, 2013	—		—			26,433			—			—			26,433
Other comprehensive income (loss), net of tax	—		—			—			(8,213		)	—			(8,213		)
Cash dividends declared ($0.30 per share)	—		—			(8,918		)	—			—			(8,918		)
Treasury stock issued for restricted awards (22,189 shares, net of 16,093 forfeitures)	—		—			(296		)	—			210			(86		)
Recognition of restricted stock compensation expense	—		261			—			—			—			261
Tax expense from stock-based compensation	—		(47		)	—			—			—			(47		)
Balance at June 30, 2013	$	77,993	$	77,672		$	453,258		$	(21,795	)	$	(40,276	)	$	546,852
Balance at January 1, 2014	$	77,993	$	78,140		$	468,158		$	(12,694	)	$	(40,291	)	$	571,306
Net income for six months ended June 30, 2014	—		—			28,753			—			—			28,753
Other comprehensive income (loss), net of tax	—		—			—			6,668			—			6,668
Cash dividends declared ($0.33 per share)	—		—			(9,810		)	—			—			(9,810		)
Treasury stock issued for restricted awards (80,455 shares, net of 20,976 forfeitures)	—		—			(1,824		)	—			1,664			(160		)
Recognition of restricted stock compensation expense	—		430			—			—			—			430
Tax expense from stock-based compensation	—		—			—			—			—			—
Balance at June 30, 2014	$	77,993	$	78,570		$	485,277		$	(6,026	)	$	(38,627	)	$	597,187

See Notes to Consolidated Financial Statements

5

S&T BANCORP, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited)

	Six Months Ended June 30,
(dollars in thousands)	2014			2013
OPERATING ACTIVITIES
Net income	$	28,753		$	26,433
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	(845		)	3,330
Provision for unfunded loan commitments	182			302
Depreciation and amortization	2,309			3,061
Net amortization of discounts and premiums	1,898			1,776
Stock-based compensation expense	395			254
Securities gains, net	(41		)	(2		)
Net gain on sale of merchant card servicing business	—			(3,093		)
Tax expense from stock-based compensation	—			47
Mortgage loans originated for sale	(13,057		)	(37,706		)
Proceeds from the sale of loans	13,475			57,667
Gain on the sale of loans, net	(85		)	(647		)
Net increase in interest receivable	(243		)	(1,222		)
Net decrease in interest payable	(186		)	(1,241		)
Net decrease in other assets	10,016			17,243
Net increase (decrease) in other liabilities	1,199			(20,981		)
Net Cash Provided by Operating Activities	43,770			45,221
INVESTING ACTIVITIES
Purchases of securities available-for-sale	(108,845		)	(66,495		)
Proceeds from maturities, prepayments and calls of securities available-for-sale	36,343			23,240
Proceeds from sales of securities available-for-sale	1,418			94
Net (payments for) proceeds from Federal Home Loan Bank stock	(2,189		)	1,356
Net increase in loans	(169,209		)	(103,846		)
Proceeds from sale of loans not originated for resale	4,108			—
Purchases of premises and equipment	(1,719		)	(1,400		)
Proceeds from the sale of premises and equipment	64			576
Proceeds from the sale of merchant card servicing business	—			4,750
Net Cash Used in Investing Activities	(240,029		)	(141,725		)
FINANCING ACTIVITIES
Net increase (decrease) in core deposits	141,888			(26,999		)
Net increase in certificates of deposit	50,972			36,842
Net (decrease) increase in securities sold under repurchase agreements	(8,578		)	11,569
Net increase in short-term borrowings	45,000			50,000
Repayments of long-term borrowings	(1,174		)	(11,136		)
Repayment of junior subordinated debt	—			(45,000		)
Treasury shares purchased-net	(160		)	(86		)
Cash dividends paid to common shareholders	(9,810		)	(8,918		)
Tax expense from stock-based compensation	—			(47		)
Net Cash Provided by Financing Activities	218,138			6,225
Net increase (decrease) in cash and cash equivalents	21,879			(90,279		)
Cash and cash equivalents at beginning of period	108,356			337,711
Cash and Cash Equivalents at End of Period	$	130,235		$	247,432
Supplemental Disclosures
Loans transferred to held for sale	$	1,300		$	—
Interest paid	6,278			9,372
Income taxes paid, net of refunds	8,400			5,155
Transfers of loans to other real estate owned	$	274		$	180

See Notes to Consolidated Financial Statements

6

S&T BANCORP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

NOTE 1. BASIS OF PRESENTATION

Principles of Consolidation

The interim Consolidated Financial Statements include the accounts of S&T Bancorp, Inc., or S&T, and its wholly owned subsidiaries. All significant intercompany transactions have been eliminated in consolidation. Investments of 20 percent to 50 percent of the outstanding common stock of investees are accounted for using the equity method of accounting.

Basis of Presentation

The accompanying unaudited interim Consolidated Financial Statements of S&T have been prepared in accordance with generally accepted accounting principles, or GAAP, in the United States for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements and should be read in conjunction with our annual report on Form 10-K for the year ended December 31, 2013, filed with the Securities and Exchange Commission, or SEC, on February 21, 2014. In the opinion of management, the accompanying interim financial information reflects all adjustments, including normal recurring adjustments, necessary to present fairly our financial position and the results of operations for each of the interim periods presented. Results of operations for interim periods are not necessarily indicative of the results of operations that may be expected for a full year or any future period.

Reclassification

Certain amounts in the prior periods’ financial statements and footnotes have been reclassified to conform to the current period’s presentation. The reclassifications had no significant effect on our results of operations or financial condition.

Use of Estimates

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements. Actual results could differ from those estimates.

Recently Adopted Accounting Standards Updates, or ASU

Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Tax Credit Carry forward Exists

In July 2013, the Financial Accounting Standards Board (FASB) issued ASU No. 2013-11, Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Tax Credit Carry forward Exists. The ASU requires that entities should present an unrecognized tax benefit as a reduction of the deferred tax asset for a net operating loss, or NOL, or similar tax loss or tax credit carry forward rather than as a liability when the uncertain tax position would reduce the NOL or other carry forward under the tax law. The new standard is effective for fiscal years, and interim periods within those years, beginning after December 15, 2013, and should be applied prospectively to all unrecognized tax benefits that exist at the effective date. Retrospective application is permitted. The adoption of this ASU had no impact on our results of operations or financial position.

Obligations Resulting from Joint and Several Liability Arrangements for Which the Total Amount of the Obligation is Fixed at the Reporting Date

In February 2013, the FASB issued ASU No. 2013-04, Obligations Resulting from Joint and Several Liability Arrangements for Which the Total Amount of the Obligation is Fixed at the Reporting Date. The ASU requires the measurement of obligations resulting from joint and several liability arrangements for which the total amount of the obligation is fixed at the reporting date as the sum of the amount the reporting entity agreed to pay on the basis of its arrangement with its co-obligors as well as any additional amount that the entity expects to pay on behalf of its co-obligors. The new standard is effective retrospectively for fiscal years and interim periods within those years, beginning after December 15, 2013, and early adoption is permitted. The adoption of this ASU had no impact on our results of operations or financial position.

7

S&T BANCORP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued

NOTE 1. BASIS OF PRESENTATION – continued

Recently Issued Accounting Standards Updates not yet Adopted

Share-Based Payment Awards with Performance Targets

In June 2014, the FASB issued ASU No. 2014-12, Share-Based Payment Awards with Performance Targets. The main provisions of ASU 2014-12 require that a performance target included in a share-based payment award that affects vesting and that could be achieved after the requisite service period be treated as a performance condition. Therefore, under the existing stock compensation guidance in Topic 718, the performance target should not be reflected in estimating the grant-date fair value of the award. The standard is effective for annual periods and interim periods beginning after December 15, 2015. We do not expect that this ASU will have a material impact on our results of operations or financial position.

Repurchase-To-Maturity Transactions, Repurchase Financings and New Disclosures

In June 2014, the FASB issued ASU No. 2014-11, Repurchase-to-Maturity Transactions, Repurchase Financings, and New Disclosures to change the accounting for repurchase-to-maturity transactions and certain linked repurchase financings. This will result in accounting for both types of arrangements as secured borrowings on the balance sheet and require new disclosures to (i) increase transparency about the types of collateral pledged in secured borrowing transactions and (ii) enable users to better understand transactions in which the transferor retains substantially all of the exposure to the economic return on the transferred financial asset throughout the term of the transaction. The disclosure for repurchase agreements, securities lending transactions, and repurchase-to-maturity transactions accounted for as secured borrowings is required to be presented for annual periods beginning after December 15, 2014, and for interim periods beginning after March 15, 2015. All other accounting and disclosure amendments in the ASU are effective for the first interim or annual period beginning after December 15, 2014. Earlier application for a public business entity is prohibited. We do not expect that this ASU will have a material impact on our results of operations or financial position.

Revenues from Contracts with Customers

In May 2014, the FASB issued ASU No. 2014-09, Revenues from Contracts with Customers. The core principle of the guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods and services. The standard is required to be adopted by public business entities in annual periods beginning on or after December 15, 2016. The provisions do not apply to lease contracts, insurance contracts, financial instruments and other contractual rights or obligations (e.g. receivables, debt and equity securities, liabilities, debt, derivatives transfers, and servicing, etc.), guarantees, or non-monetary exchanges between entities. We are currently evaluating the impact of the adoption of this pronouncement on our consolidated financial statements.

Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity

In April 2014, the FASB issued ASU No. 2014-08, Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity, which changes the criteria for determining which disposals can be presented as discontinued operations and modifies related disclosure requirements. The guidance applies to all entities that dispose of components. It will significantly change current practices for assessing discontinued operations and affect an entity’s income and earnings per share from continuing operations. An entity is required to reclassify assets and liabilities of a discontinued operation that are classified as held for sale or disposed of in the current period for all comparative periods presented. The ASU requires that an entity present in the statement of cash flows or disclose in a note either total operating and investing cash flows for discontinued operations, or depreciation, amortization, capital expenditures and significant operating and investing noncash items related to discontinued operations. Additional disclosures are required when an entity retains significant continuing involvement with a discontinued operation after its disposal, including the amount of cash flows to and from a discontinued operation. The new standard applies prospectively after the effective date of December 15, 2014, and early adoption is permitted. We do not expect that this ASU will have a material impact on our results of operations or financial position.

8

S&T BANCORP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued

NOTE 1. BASIS OF PRESENTATION – continued

Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure

In January 2014, the FASB issued ASU No. 2014-04, Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure. The ASU clarifies that an in substance repossession or foreclosure has occurred and a creditor is considered to have received physical possession of residential real estate property collateralizing a consumer mortgage loan, upon either the creditor obtaining legal title to the residential real estate property upon completion of a foreclosure or the borrower conveying all interest in the residential real estate property to the creditor to satisfy that loan through completion of a deed in lieu of foreclosure. Interim and annual disclosure is required of both the amount of foreclosed residential real estate property held by the creditor and the recorded investment in consumer mortgage loans collateralized by residential real estate property that are in the process of foreclosure. The new standard is effective using either the modified retrospective transition method or a prospective transition method for fiscal years and interim periods within those years, beginning after December 15, 2014, and early adoption is permitted. We do not expect that this ASU will have a material impact on our results of operations or financial position.

Accounting for Investments in Qualified Affordable Housing Projects

In January 2014, the FASB issued ASU No. 2014-01, Accounting for Investments in Qualified Affordable Housing Projects. The ASU permits reporting entities to make an accounting policy election to account for investments in qualified affordable housing projects using the proportional amortization method if certain conditions are met. The proportional amortization method permits the amortization of the initial cost of the investment in proportion to the tax credits and other tax benefits received, and recognizes the net investment performance in the income statement as a component of income tax expense (benefit). The new standard is effective retrospectively for fiscal years and interim periods within those years, beginning after December 15, 2014, and early adoption is permitted. We do not expect that this ASU will have a material impact on our results of operations or financial position.

9

S&T BANCORP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued

NOTE 2. EARNINGS PER SHARE

The following table reconciles the numerators and denominators of basic earnings per share with that of diluted earnings per share for the periods presented:

	Three Months Ended June 30,				Six Months Ended June 30,
(dollars in thousands, except shares and per share data)	2014		2013		2014		2013
Numerator for Earnings per Share—Basic:
Net income	$	14,720	$	14,103	$	28,753	$	26,433
Less: Income allocated to participating shares	29		36		64		81
Net Income Allocated to Shareholders	$	14,691	$	14,067	$	28,689	$	26,352
Numerator for Earnings per Share—Diluted:
Net income	14,720		14,103		$	28,753	$	26,433
Net Income Available to Shareholders	$	14,720	$	14,103	$	28,753	$	26,433
Denominators for Earnings per Share:
Weighted Average Shares Outstanding—Basic	29,684,300		29,654,018		29,672,611		29,637,825
Add: Dilutive potential shares	16,894		23,858		27,559		41,319
Denominator for Treasury Stock Method—Diluted	29,701,194		29,677,876		29,700,170		29,679,144
Weighted Average Shares Outstanding—Basic	29,684,300		29,654,018		29,672,611		29,637,825
Add: Average participating shares outstanding	58,973		74,994		66,563		91,530
Denominator for Two-Class Method—Diluted	29,743,273		29,729,012		29,739,174		29,729,355
Earnings per share—basic	$	0.49	$	0.47	$	0.97	$	0.89
Earnings per share—diluted	$	0.49	$	0.47	$	0.97	$	0.89
Warrants considered anti-dilutive excluded from dilutive potential shares	517,012		517,012		517,012		517,012
Stock options considered anti-dilutive excluded from dilutive potential shares	428,493		629,570		428,676		642,499
Restricted stock considered anti-dilutive excluded from dilutive potential shares	42,079		51,136		39,005		50,211

10

S&T BANCORP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued

NOTE 3. FAIR VALUE MEASUREMENT

We use fair value measurements when recording and disclosing certain financial assets and liabilities. Securities available-for-sale, trading assets and derivatives are recorded at fair value on a recurring basis. Additionally, from time to time, we may be required to record other assets at fair value on a nonrecurring basis, such as loans held for sale, impaired loans, other real estate owned, or OREO, mortgage servicing rights, or MSRs, and certain other assets.

Fair value is the price that would be received to sell an asset or paid to transfer a liability in the principal or most advantageous market in an orderly transaction between market participants at the measurement date. An orderly transaction is a transaction that assumes exposure to the market for a period prior to the measurement date to allow for marketing activities that are usual and customary for transactions involving such assets or liabilities; it is not a forced transaction. In determining fair value, we use various valuation approaches, including market, income and cost approaches. The fair value standard establishes a hierarchy for inputs used in measuring fair value that maximizes the use of observable inputs and minimizes the use of unobservable inputs by requiring that observable inputs be used when available. Observable inputs are inputs that market participants would use in pricing an asset or liability, which is developed, based on market data we have obtained from independent sources. Unobservable inputs reflect our estimate of assumptions that market participants would use in pricing an asset or liability, which are developed based on the best information available in the circumstances.

The fair value hierarchy gives the highest priority to unadjusted quoted market prices in active markets for identical assets or liabilities (Level 1 measurement) and the lowest priority to unobservable inputs (Level 3 measurement). The fair value hierarchy is broken down into three levels based on the reliability of inputs as follows:

Level 1: valuation is based upon unadjusted quoted market prices for identical instruments traded in active markets.

Level 2: valuation is based upon quoted market prices for similar instruments traded in active markets, quoted market prices for identical or similar instruments traded in markets that are not active and model-based valuation techniques for which all significant assumptions are observable in the market or can be corroborated by market data.

Level 3: valuation is derived from other valuation methodologies, including discounted cash flow models and similar techniques that use significant assumptions not observable in the market. These unobservable assumptions reflect estimates of assumptions that market participants would use in determining fair value.

A financial instrument’s level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement. Our policy is to recognize transfers between any of the fair value hierarchy levels at the end of the reporting period in which the transfer occurred.

The following are descriptions of the valuation methodologies that we use for financial instruments recorded at fair value on either a recurring or nonrecurring basis.

Recurring Basis

Securities Available-for-Sale

Securities available-for-sale include both debt and equity securities. We obtain fair values for debt securities from a third-party pricing service which utilizes several sources for valuing fixed-income securities. We validate prices received from our pricing service through comparison to a secondary pricing service and broker quotes. We review the methodologies of the pricing service which provides us with a sufficient understanding of the valuation models, assumptions, inputs and pricing to reasonably measure the fair value of our debt securities. The market valuation sources for debt securities include observable inputs rather than significant unobservable inputs and are classified as Level 2. The service provider utilizes pricing models that vary by asset class and include available trade, bid and other market information. Generally, the methodologies include broker quotes, proprietary models and vast descriptive terms and conditions databases, as well as extensive quality control programs.

Marketable equity securities that have an active, quotable market are classified as Level 1. Marketable equity securities that are quotable, but are thinly traded or inactive, are classified as Level 2. Marketable equity securities that are not readily traded and do not have a quotable market are classified as Level 3.

Trading Assets

We use quoted market prices to determine the fair value of our trading assets. Our trading assets are held in a Rabbi Trust under a deferred compensation plan and are invested in readily quoted mutual funds. Accordingly, these assets are classified as Level 1.

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NOTE 3. FAIR VALUE MEASUREMENT – continued

Derivative Financial Instruments

We use derivative instruments including interest rate swaps for commercial loans with our customers and we sell mortgage loans in the secondary market and enter into interest rate lock commitments. We calculate the fair value for derivatives using widely accepted valuation techniques, including discounted cash flow analysis on the expected cash flows of each derivative. Each valuation considers the contractual terms of the derivative, including the period to maturity, and uses observable market based inputs, such as interest rate curves and implied volatilities. Accordingly, derivatives are classified as Level 2.

We incorporate credit valuation adjustments into the valuation models to appropriately reflect both our own nonperformance risk and the respective counterparty’s nonperformance risk in calculating fair value measurements. In adjusting the fair value of our derivative contracts for the effect of nonperformance risk, we have considered the impact of netting and any applicable credit enhancements and collateral postings.

Nonrecurring Basis

Loans Held for Sale

Loans held for sale consist of 1-4 family residential loans originated for sale in the secondary market and, from time to time, certain loans transferred from the loan portfolio to loans held for sale, all of which are carried at the lower of cost or fair value. The fair value of 1-4 family residential loans is based on the principal or most advantageous market currently offered for similar loans using observable market data. The fair value of the loans transferred from the loan portfolio is based on the amounts offered for these loans in currently pending sales transactions. Loans held for sale carried at fair value are classified as Level 3.

Impaired Loans

Impaired loans are carried at the lower of carrying value or fair value. Fair value is determined as the recorded investment balance less any specific reserve. We establish a specific reserve based on the following three impairment methods: 1) the present value of expected future cash flows discounted at the loan’s original effective interest rate, 2) the loan’s observable market price or 3) the fair value of the collateral less estimated selling costs when the loan is collateral dependent and we expect to liquidate the collateral. However, if repayment is expected to come from the operation of the collateral, rather than liquidation, then we do not consider estimated selling costs in determining the fair value of the collateral. Collateral values are generally based upon appraisals by approved, independent state certified appraisers.

Appraisals may be discounted based on our historical knowledge, changes in market conditions from the time of appraisal or our knowledge of the borrower and the borrower’s business. Impaired loans carried at fair value are classified as Level 3.

OREO and Other Repossessed Assets

OREO and other repossessed assets obtained in partial or total satisfaction of a loan are recorded at the lower of recorded investment in the loan or fair value less cost to sell. Subsequent to foreclosure, these assets are carried at the lower of the amount recorded at acquisition date or fair value less cost to sell. Accordingly, it may be necessary to record nonrecurring fair value adjustments. Fair value, when recorded, is generally based upon appraisals by approved, independent state certified appraisers. Like impaired loans, appraisals on OREO may be discounted based on our historical knowledge, changes in market conditions from the time of appraisal or other information available to us. OREO and other repossessed assets are classified as Level 3.

Mortgage Servicing Rights

The fair value of MSRs is determined by calculating the present value of estimated future net servicing cash flows, considering expected mortgage loan prepayment rates, discount rates, servicing costs and other economic factors, which are determined based on current market conditions. The expected rate of mortgage loan prepayments is the most significant factor affecting the value of MSRs. MSRs are considered impaired if the carrying value exceeds fair value. The valuation model includes significant unobservable inputs; therefore, MSRs are classified as Level 3.

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NOTE 3. FAIR VALUE MEASUREMENT – continued

Other Assets

We measure certain other assets at fair value on a nonrecurring basis. Fair value is based on the application of lower of cost or fair value accounting, or write-downs of individual assets. Valuation methodologies used to measure fair value are consistent with overall principles of fair value accounting and consistent with those described above.

Financial Instruments

In addition to financial instruments recorded at fair value in our financial statements, fair value accounting guidance requires disclosure of the fair value of all of an entity’s assets and liabilities that are considered financial instruments. The majority of our assets and liabilities are considered financial instruments. Many of these instruments lack an available trading market as characterized by a willing buyer and willing seller engaged in an exchange transaction. Also, it is our general practice and intent to hold our financial instruments to maturity and to not engage in trading or sales activities with respect to such financial instruments. For fair value disclosure purposes, we substantially utilize the fair value measurement criteria as required and explained above. In cases where quoted fair values are not available, we use present value methods to determine the fair value of our financial instruments.

Cash and Cash Equivalents and Other Short-Term Assets

The carrying amounts reported in the Consolidated Balance Sheets for cash and due from banks, including interest-bearing deposits, approximate fair value.

Loans

The fair value of variable rate performing loans that may reprice frequently at short-term market rates is based on carrying values adjusted for credit risk. The fair value of variable rate performing loans that reprice at intervals of one year or longer, such as adjustable rate mortgage products, is estimated using discounted cash flow analyses that utilize interest rates currently being offered for similar loans and adjusted for credit risk. The fair value of fixed rate performing loans is estimated using discounted cash flow analyses that utilize interest rates currently being offered for similar loans and adjusted for credit risk. The fair value of nonperforming loans is based on their carrying values less any specific reserve. The carrying amount of accrued interest approximates fair value.

Bank Owned Life Insurance

Fair value approximates net cash surrender value.

Deposits

The fair values disclosed for deposits without defined maturities (e.g., noninterest and interest-bearing demand, money market and savings accounts) are by definition equal to the amounts payable on demand. The carrying amounts for variable rate, fixed-term time deposits approximate their fair values. Estimated fair values for fixed rate and other time deposits are based on discounted cash flow analysis using interest rates currently offered for time deposits with similar terms. The carrying amount of accrued interest approximates fair value.

Short-Term Borrowings

The carrying amounts of securities sold under repurchase agreements, federal funds purchased and other short-term borrowings approximate their fair values.

Long-Term Borrowings

The fair values disclosed for fixed rate long-term borrowings are determined by discounting their contractual cash flows using current interest rates for long-term borrowings of similar remaining maturities. The carrying amounts of variable rate long-term borrowings approximate their fair values.

Junior Subordinated Debt Securities

The variable rate junior subordinated debt securities reprice quarterly; therefore, the fair values are based on the carrying values.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued

NOTE 3. FAIR VALUE MEASUREMENT – continued

Loan Commitments and Standby Letters of Credit

Off-balance sheet financial instruments consist of commitments to extend credit and letters of credit. Except for interest rate lock commitments, estimates of the fair value of these off-balance sheet items are not made because of the short-term nature of these arrangements and the credit standing of the counterparties.

Other

Estimates of fair value are not made for items that are not defined as financial instruments, including such items as our core deposit intangibles and the value of our trust operations.

The following tables present our assets and liabilities that are measured at fair value on a recurring basis by fair value hierarchy level at June 30, 2014 and December 31, 2013. There were no transfers between Level 1 and Level 2 for items measured at fair value on a recurring basis during the periods presented.

	June 30, 2014
(dollars in thousands)	Level 1		Level 2		Level 3		Total
ASSETS
Securities available-for-sale:
Obligations of U.S. government corporations and agencies	$	—	$	270,248	$	—	$	270,248
Collateralized mortgage obligations of U.S. government corporations and agencies	—		94,604		—		94,604
Residential mortgage-backed securities of U.S. government corporations and agencies	—		46,389		—		46,389
Commercial mortgage-backed securities of U.S. government corporations and agencies	—		39,920		—		39,920
Obligations of states and political subdivisions	—		128,313		—		128,313
Marketable equity securities	179		8,835		—		9,014
Total securities available-for-sale	179		588,309		—		588,488
Trading securities held in a Rabbi Trust	3,117		—		—		3,117
Total securities	3,296		588,309		—		591,605
Derivative financial assets:
Interest rate swaps	—		14,082		—		14,082
Interest rate lock commitments	—		292		—		292
Forward sale contracts	—		—		—		—
Total Assets	$	3,296	$	602,683	$	—	$	605,979
LIABILITIES
Derivative financial liabilities:
Interest rate swaps	$	—	$	14,050	$	—	$	14,050
Forward sale contracts	—		59		—		$	59
Total Liabilities	$	—	$	14,109	$	—	$	14,109

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued

NOTE 3. FAIR VALUE MEASUREMENT – continued

	December 31, 2013
(dollars in thousands)	Level 1		Level 2		Level 3		Total
ASSETS
Securities available-for-sale:
Obligations of U.S. government corporations and agencies	$	—	$	234,751	$	—	$	234,751
Collateralized mortgage obligations of U.S. government corporations and agencies	—		63,774		—		63,774
Residential mortgage-backed securities of U.S. government corporations and agencies	—		48,669		—		48,669
Commercial mortgage-backed securities of U.S. government corporations and agencies	—		39,052		—		39,052
Obligations of states and political subdivisions	—		114,264		—		114,264
Marketable equity securities	202		8,713		—		8,915
Total securities available-for-sale	202		509,223		—		509,425
Trading securities held in a Rabbi Trust	2,864		—		—		2,864
Total securities	3,066		509,223		—		512,289
Derivative financial assets:
Interest rate swaps	—		13,698		—		13,698
Interest rate lock commitments	—		85		—		85
Forward sale contracts	—		34		—		34
Total Assets	$	3,066	$	523,040	$	—	$	526,106
LIABILITIES
Derivative financial liabilities:
Interest rate swaps	$	—	$	13,647	$	—	$	13,647
Total Liabilities	$	—	$	13,647	$	—	$	13,647

We classify financial instruments as Level 3 when valuation models are used because significant inputs are not observable in the market. The following table presents the changes in assets measured at fair value on a recurring basis for which we have utilized Level 3 inputs to determine the fair value:

	Three Months Ended June 30,					Six Months Ended June 30,
(dollars in thousands)	2014		2013			2014		2013
Balance at beginning of period	$	—	$	312		$	—	$	300
Total gains included in other comprehensive income(1)	—		32			—		44
Net purchases, sales, issuances and settlements	—		—			—		—
Transfers out of Level 3	—		(344		)	—		(344		)
Balance at end of period	$	—	$	—		$	—	$	—

⁽¹⁾ Changes in estimated fair value of available-for-sale investments are recorded in accumulated other comprehensive income (loss), while realized gains and losses from sales are recorded in security gains (losses), net in the Consolidated Statements of Comprehensive Income.

We may be required to measure certain assets and liabilities on a nonrecurring basis. The following table presents our assets that were measured at fair value on a nonrecurring basis by the fair value hierarchy level at June 30, 2014 and December 31, 2013. There were no liabilities measured at fair value on a nonrecurring basis during these periods.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued

NOTE 3. FAIR VALUE MEASUREMENT – continued

	June 30, 2014								December 31, 2013
(dollars in thousands)	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
ASSETS
Loans held for sale	$	—	$	—	$	1,300	$	1,300	$	—	$	—	$	1,516	$	1,516
Impaired loans	—		—		14,483		14,483		—		—		19,197		19,197
Other real estate owned	—		—		317		317		—		—		317		317
Mortgage servicing rights	—		—		1,211		1,211		—		—		1,025		1,025
Total Assets	$	—	$	—	$	17,311	$	17,311	$	—	$	—	$	22,055	$	22,055

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued

NOTE 3. FAIR VALUE MEASUREMENT – continued

The carrying values and fair values of our financial instruments at June 30, 2014 and December 31, 2013 are presented in the following tables:

	Carrying Value(1)		Fair Value Measurements at June 30, 2014
(dollars in thousands)			Total		Level 1		Level 2		Level 3
ASSETS
Cash and due from banks, including interest-bearing deposits	$	130,235	$	130,235	$	130,235	$	—	$	—
Securities available-for-sale	588,488		588,488		179		588,309		—
Loans held for sale	3,102		3,121		—		—		3,121
Portfolio loans, net of unearned income	3,725,079		3,691,807		—		—		3,691,807
Bank owned life insurance	61,348		61,348		—		61,348		—
FHLB and other restricted stock	15,818		15,818		—		—		15,818
Trading securities held in a Rabbi Trust	3,117		3,117		3,117		—		—
Mortgage servicing rights	2,743		2,890		—		—		2,890
Interest rate swaps	14,082		14,082		—		14,082		—
Interest rate lock commitments	292		292		—		292		—
LIABILITIES
Deposits	$	3,865,246	$	3,867,540	$	—	$	—	$	3,867,540
Securities sold under repurchase agreements	25,269		25,269		—		—		25,269
Short-term borrowings	185,000		185,000		—		—		185,000
Long-term borrowings	20,636		21,779		—		—		21,779
Junior subordinated debt securities	45,619		45,619		—		—		45,619
Interest rate swaps	14,050		14,050		—		14,050		—
Forward sale contracts	59		59		—		59		—
(1) As reported in the Consolidated Balance Sheets
	Carrying Value(1)		Fair Value Measurements at December 31, 2013
(dollars in thousands)			Total		Level 1		Level 2		Level 3
ASSETS
Cash and due from banks, including interest-bearing deposits	$	108,356	$	108,356	$	108,356	$	—	$	—
Securities available-for-sale	509,425		509,425		202		509,223		—
Loans held for sale	2,136		2,139		—		—		2,139
Portfolio loans, net of unearned income	3,566,199		3,538,072		—		—		3,538,072
Bank owned life insurance	60,480		60,480		—		60,480		—
FHLB and other restricted stock	13,629		13,629		—		—		13,629
Trading securities held in a Rabbi Trust	2,864		2,864		2,864		—		—
Mortgage servicing rights	2,919		3,143		—		—		3,143
Interest rate swaps	13,698		13,698		—		13,698		—
Interest rate lock commitments	85		85		—		85		—
Forward sale contracts	34		34		—		34		—
LIABILITIES
Deposits	$	3,672,308	$	3,673,624	$	—	$	—	$	3,673,624
Securities sold under repurchase agreements	33,847		33,847		—		—		33,847
Short-term borrowings	140,000		140,000		—		—		140,000
Long-term borrowings	21,810		22,924		—		—		22,924
Junior subordinated debt securities	45,619		45,619		—		—		45,619
Interest rate swaps	13,647		13,647		—		13,647		—

⁽¹⁾ As reported in the Consolidated Balance Sheets

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued

NOTE 4. SECURITIES AVAILABLE-FOR-SALE

The following table indicates the composition of the securities available-for-sale portfolio as of the dates presented:

	June 30, 2014									December 31, 2013
(dollars in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Obligations of U.S. government corporations and agencies	$	268,614	$	2,733	$	(1,099	)	$	270,248	$	235,181	$	2,151	$	(2,581	)	$	234,751
Collateralized mortgage obligations of U.S. government corporations and agencies	93,787		1,035		(218		)	94,604		63,776		601		(603		)	63,774
Residential mortgage-backed securities of U.S. government corporations and agencies	44,900		1,720		(231		)	46,389		47,934		1,420		(685		)	48,669
Commercial mortgage-backed securities of U.S. government corporations and agencies	40,098		224		(402		)	39,920		40,357		—		(1,305		)	39,052
Obligations of states and political subdivisions	124,648		4,017		(352		)	128,313		115,572		1,294		(2,602		)	114,264
Debt Securities	572,047		9,729		(2,302		)	579,474		502,820		5,466		(7,776		)	500,510
Marketable equity securities	7,579		1,435		—			9,014		7,579		1,336		—			8,915
Total	$	579,626	$	11,164	$	(2,302	)	$	588,488	$	510,399	$	6,802	$	(7,776	)	$	509,425

Realized gains and losses on the sale of securities are determined using the specific-identification method. The following table shows the composition of gross and net realized gains and losses for the periods presented:

	Three Months Ended June 30,				Six Months Ended June 30,
(dollars in thousands)	2014		2013		2014		2013
Gross realized gains	$	40	$	—	$	41	$	2
Gross realized losses	—		—		—		—
Net Realized Gains	$	40	$	—	$	41	$	2

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued

NOTE 4. SECURITIES AVAILABLE-FOR-SALE – continued

The following tables indicate the fair value and the age of gross unrealized losses by investment category as of the dates presented:

	June 30, 2014
	Less Than 12 Months						12 Months or More						Total
(dollars in thousands)	Number of Securities	Fair Value		Unrealized Losses			Number of Securities	Fair Value		Unrealized Losses			Fair Value		Number of Securities	Unrealized Losses
Obligations of U.S. government corporations and agencies	2	$	19,741	$	(78	)	8	$	63,265	$	(1,021	)	$	83,006	10	$	(1,099	)
Collateralized mortgage obligations of U.S. government corporations and agencies	1	11,420		(218		)	—	—		—			11,420		1	(218		)
Residential mortgage-backed securities of U.S. government corporations and agencies	—	—		—			1	9,414		(231		)	9,414		1	(231		)
Commercial mortgage-backed securities of U.S. government corporations and agencies	1	10,009		(16		)	2	20,837		(386		)	30,846		3	(402		)
Obligations of states and political subdivisions	1	264		(1		)	3	15,975		(351		)	16,239		4	(352		)
Debt Securities	5	41,434		(313		)	14	109,491		(1,989		)	150,925		19	(2,302		)
Marketable equity securities	—	—		—			—	—		—			—		—	—
Total Temporarily Impaired Securities	5	$	41,434	$	(313	)	14	$	109,491	$	(1,989	)	$	150,925	19	$	(2,302	)
	December 31, 2013
	Less Than 12 Months						12 Months or More						Total
(dollars in thousands)	Number of Securities	Fair Value		Unrealized Losses			Number of Securities	Fair Value		Unrealized Losses			Fair Value		Number of Securities	Unrealized Losses
Obligations of U.S. government corporations and agencies	16	$	126,017	$	(2,581	)	—	$	—	$	—		$	126,017	16	$	(2,581	)
Collateralized mortgage obligations of U.S. government corporations and agencies	3	39,522		(603		)	—	—		—			39,522		3	(603		)
Residential mortgage-backed securities of U.S. government corporations and agencies	2	22,822		(685		)	—	—		—			22,822		2	(685		)
Commercial mortgage-backed securities of U.S. government corporations and agencies	4	39,052		(1,305		)	—	—		—			39,052		4	(1,305		)
Obligations of states and political subdivisions	16	47,529		(1,739		)	2	10,088		(863		)	57,617		18	(2,602		)
Debt Securities	41	274,942		(6,913		)	2	10,088		(863		)	285,030		43	(7,776		)
Marketable equity securities	—	—		—			—	—		—			—		—	—
Total Temporarily Impaired Securities	41	$	274,942	$	(6,913	)	2	$	10,088	$	(863	)	$	285,030	43	$	(7,776	)

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued

NOTE 4. SECURITIES AVAILABLE-FOR-SALE – continued

We do not believe any individual unrealized loss as of June 30, 2014 represents an other than temporary impairment, or OTTI. As of June 30, 2014, the unrealized losses on 19 debt securities were attributable to changes in interest rates and not related to the credit quality of these securities. All debt securities are determined to be investment grade and are paying principal and interest according to the contractual terms of the security. There were no unrealized losses on marketable equity securities as of June 30, 2014. We do not intend to sell and it is not more likely than not that we will be required to sell any of the securities, referenced in the table above, in an unrealized loss position before recovery of their amortized cost.

The following table displays net unrealized gains and losses, net of tax on securities available for sale included in accumulated other comprehensive income/(loss) for the periods presented.

	June 30, 2014							December 31, 2013
(dollars in thousands)	Gross Unrealized Gains		Gross Unrealized Losses			Net Unrealized Gains/ (Losses)		Gross Unrealized Gains		Gross Unrealized Losses			Net Unrealized Gains/ (Losses)
Total unrealized gains/(losses) on securities available-for-sale	$	11,164	$	(2,302	)	$	8,862	$	6,802	$	(7,776	)	$	(974	)
Income tax expense/(benefit)	3,907		(806		)	3,101		2,381		(2,722		)	(341		)
Net unrealized gains/(losses), net of tax included in accumulated other comprehensive income/(loss)	$	7,257	$	(1,496	)	$	5,761	$	4,421	$	(5,054	)	$	(633	)

The amortized cost and fair value of securities available-for-sale at June 30, 2014, by contractual maturity, are included in the table below. Actual maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.

	June 30, 2014
(dollars in thousands)	Amortized Cost		Fair Value
Obligations of U.S. government corporations and agencies, and obligations of states and political subdivisions
Due in one year or less	$	24,049	$	24,289
Due after one year through five years	182,816		184,074
Due after five years through ten years	98,068		99,420
Due after ten years	88,329		90,778
	393,262		398,561
Collateralized mortgage obligations of U.S. government corporations and agencies	93,787		94,604
Residential mortgage-backed securities of U.S. government corporations and agencies	44,900		46,389
Commercial mortgage-backed securities of U.S. government corporations and agencies	40,098		39,920
Debt Securities	572,047		579,474
Marketable equity securities	7,579		9,014
Total	$	579,626	$	588,488

At June 30, 2014 and December 31, 2013, securities with carrying values of $273.5 million and $243.2 million were pledged for various regulatory and legal requirements.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued

NOTE 5. LOANS AND LOANS HELD FOR SALE

     Loans are presented net of unearned income of $1.8 million and $1.3 million at June 30, 2014 and December 31, 2013. The following table indicates the composition of the loans as of the dates presented:

(dollars in thousands)	June 30, 2014		December 31, 2013
Commercial
Commercial real estate	$	1,636,383	$	1,607,756
Commercial and industrial	922,191		842,449
Commercial construction	188,311		143,675
Total Commercial Loans	2,746,885		2,593,880
Consumer
Residential mortgage	492,589		487,092
Home equity	416,226		414,195
Installment and other consumer	65,838		67,883
Consumer construction	3,541		3,149
Total Consumer Loans	978,194		972,319
Total Portfolio Loans	3,725,079		3,566,199
Loans held for sale	3,102		2,136
Total Loans	$	3,728,181	$	3,568,335

We attempt to limit our exposure to credit risk by diversifying our loan portfolio and actively managing concentrations. When concentrations exist in certain segments, we mitigate this risk by monitoring the relevant economic indicators and internal risk rating trends and through stress testing of the loans in these segments. Total commercial loans represented 74 percent of total portfolio loans at June 30, 2014 and 73 percent of total portfolio loans at December 31, 2013. Within our commercial portfolio, the commercial real estate, or CRE, and commercial construction portfolios combined comprised 66 percent of total commercial loans and 49 percent of total portfolio loans at June 30, 2014 and 68 percent of total commercial loans and 49 percent of total portfolio loans at December 31, 2013. Further segmentation of the CRE and commercial construction portfolios by industry and collateral type revealed no concentration in excess of nine percent of total loans at either June 30, 2014 or December 31, 2013. The majority of both commercial and consumer loans are made to businesses and individuals in Western Pennsylvania resulting in a geographic concentration. The conditions of the local and regional economies are monitored closely through publicly available data as well as information supplied by our customers. Management believes underwriting guidelines, active monitoring of economic conditions and ongoing review by credit administration mitigates the concentration risk present in the loan portfolio. Only the CRE and commercial construction portfolios combined have any significant out-of-state exposure, with 26 percent of the combined portfolio and 13 percent of total loans being out-of-state loans at June 30, 2014 and 23 percent of the combined portfolio and 11 percent of total loans being out-of-state loans at December 31, 2013. Our CRE and commercial construction portfolios combined out-of-state exposure, excluding the contiguous states of Ohio, West Virginia, New York and Maryland, was 7.2 percent of the combined portfolio and 3.6 percent of total loans at June 30, 2014 and 7.9 percent of the combined portfolio and 3.9 percent of total loans at December 31, 2013.

Troubled debt restructurings, or TDRs, are loans where we, for economic or legal reasons related to a borrower’s financial difficulties, grant a concession to the borrower that we would not otherwise grant. We strive to identify borrowers in financial difficulty early and work with them to modify the terms before their loan reaches nonaccrual status. These modified terms generally include extensions of maturity dates at a stated interest rate lower than the current market rate for a new loan with similar risk characteristics, reductions in contractual interest rates or principal deferment. While unusual, there may be instances of principal forgiveness. These modifications are generally for longer term periods that would not be considered insignificant. Additionally, we classify loans where the debt obligation has been discharged through a Chapter 7 Bankruptcy and not reaffirmed as TDRs.

We individually evaluate all substandard commercial loans that have experienced a forbearance or change in terms agreement, as well as all substandard consumer and residential mortgage loans that entered into an agreement to modify their existing loan to determine if they should be designated as TDRs. All TDRs are considered to be impaired loans and will be reported as impaired loans for the remaining life of the loan, unless the restructuring agreement specifies an interest rate equal

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued

NOTE 5. LOANS AND LOANS HELD FOR SALE – continued

to or greater than the rate that would be accepted at the time of the restructuring for a new loan with comparable risk and it is fully expected that the remaining principal and interest will be collected according to the restructured agreement. Further, all impaired loans are reported as nonaccrual loans unless the loan is a TDR that has met the requirements to be returned to accruing status. TDRs can be returned to accruing status if the ultimate collectability of all contractual amounts due, according to the restructured agreement, is not in doubt and there is a period of a minimum of six months of satisfactory payment performance by the borrower either immediately before or after the restructuring.

The following table summarizes the restructured loans as of the dates presented:

	June 30, 2014						December 31, 2013
(dollars in thousands)	Accruing TDRs		Nonaccruing TDRs		Total TDRs		Accruing TDRs		Nonaccruing TDRs		Total TDRs
Commercial real estate	$	16,934	$	1,431	$	18,365	$	19,711	$	3,898	$	23,609
Commercial and industrial	7,390		1,170		8,560		7,521		1,884		9,405
Commercial construction	6,310		1,869		8,179		5,338		2,708		8,046
Residential mortgage	2,647		645		3,292		2,581		1,356		3,937
Home equity	3,712		125		3,837		3,924		218		4,142
Installment and other consumer	127		1		128		154		3		157
Total	$	37,120	$	5,241	$	42,361	$	39,229	$	10,067	$	49,296

We returned four TDRs for $1.4 million to accruing status during the three months ended June 30, 2014 and five TDRs for $1.5 million to accruing status during the six months ended June 30, 2014. There were no TDRs returned to accruing status during the three months ended June 30, 2013 and one TDR for $0.2 million was returned to accruing status during the six months ended June 30, 2013.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued

NOTE 5. LOANS AND LOANS HELD FOR SALE – continued

The following tables present the restructured loans for the three and six month periods ended June 30, 2014 and June 30, 2013:

	Three Months Ended June 30, 2014								Three Months Ended June 30, 2013
(dollars in thousands)	Number of Loans	Pre-Modification Outstanding Recorded Investment(1)		Post-Modification Outstanding Recorded Investment(1)		Total  Difference in Recorded Investment			Number of Loans	Pre-Modification Outstanding Recorded Investment(1)		Post-Modification Outstanding Recorded Investment(1)		Total  Difference in Recorded Investment
Commercial real estate
Principal forgiveness (3)	—	$	—	$	—	$	—		1	$	4,339	$	4,339	$	—
Principal deferral	1	129		127		(2		)	—	—		—		—
Chapter 7 bankruptcy(2)	—	—		—		—			4	53		51		(2		)
Commercial and industrial
Maturity date extension	—	—		—		—			1	751		751		—
Residential mortgage
Chapter 7 bankruptcy(2)	1	52		52		—			2	84		75		(9		)
Home equity
Chapter 7 bankruptcy(2)	4	43		41		(2		)	17	486		478		(8		)
Installment and other consumer
Chapter 7 bankruptcy(2)	1	9		9		—			—	—		—		—
Total by Concession Type
Principal forgiveness  (3)	—	—		—		—			1	4,339		4,339		—
Principal deferral	1	129		127		(2		)	—	—		—		—
Chapter 7 bankruptcy(2)	6	104		102		(2		)	23	623		604		(19		)
Maturity date extension	—	—		—		—			1	751		751		—
Total	7	$	233	$	229	$	4		25	5,713		5,694		(19		)
(1) Excludes loans that were fully paid off or fully charged-off by period end. The pre-modification balance represents the balance outstanding prior to modification. The post-modification balance represents the outstanding balance at period end. (2) Chapter 7 bankruptcy loans where the debt has been legally discharged through the bankruptcy court and not reaffirmed. (3) This loan had debt forgiveness of $0.l million to the customer; however, the loan was previously charged off to a balance below the actual contractual balance.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued

NOTE 5. LOANS AND LOANS HELD FOR SALE – continued

	Six Months Ended June 30, 2014								Six Months Ended June 30, 2013
(dollars in thousands)	Number of Loans	Pre-Modification Outstanding Recorded Investment(1)		Post-Modification Outstanding Recorded Investment(1)		Total  Difference in Recorded Investment			Number of Loans	Pre-Modification Outstanding Recorded Investment(1)		Post-Modification Outstanding Recorded Investment(1)		Total  Difference in Recorded Investment
Commercial real estate
Principal deferral	1	$	129	$	127	$	(2	)	3	$	1,541	$	1,288	$	(253	)
Principal forgiveness(3)	—	—		—		—			1	4,339		4,339		—
Chapter 7 bankruptcy(2)	—	—		—		—			7	258		255		(3		)
Commercial and industrial
Principal deferral	—	—		—		—			1	392		387		(5		)
Maturity date extension	—	—		—		—			1	751		751		—
Chapter 7 bankruptcy(2)	1	287		286		(1		)	1	3		3		—
Commercial Construction
Maturity date extension	1	1,019		1,019		—			—	—		—		—
Residential mortgage
Principal deferral	—	—		—		—			2	153		153		—
Chapter 7 bankruptcy(2)	5	329		327		(2		)	8	353		344		(9		)
Home equity
Principal deferral	—	—		—		—			1	174		45		(129		)
Chapter 7 bankruptcy(2)	10	269		251		(18		)	23	648		640		(8		)
Installment and other consumer
Chapter 7 bankruptcy(2)	1	9		9		—			6	73		73		—
Total by Concession Type
Principal deferral	1	129		127		(2		)	7	2,260		1,873		(387		)
Principal forgiveness(3)	—	—		—		—			1	4,339		4,339		—
Maturity date extension	1	1,019		1,019		—			1	751		751		—
Chapter 7 bankruptcy(2)	17	894		873		(21		)	45	1,335		1,315		(20		)
Total	19	$	2,042	$	2,019	$	(23	)	54	$	8,685	8,278		(407		)
(1) Excludes loans that were fully paid off or fully charged-off by period end. The pre-modification balance represents the balance outstanding prior to modification. The post-modification balance represents the outstanding balance at period end. (2) Chapter 7 bankruptcy loans where the debt has been legally discharged through the bankruptcy court and not reaffirmed. (3) This loan had debt forgiveness of $0.l million to the customer; however, the loan was previously charged off to a balance below the actual contractual balance.

For the three months ended June 30, 2014, we modified two CRE loans totaling $1.2 million that were not considered to be TDRs. For the six months ended June 30, 2014, we modified three loans that were not considered to be TDRs, including a $0.4 million commercial and industrial, or C&I, loan and two CRE loans for $1.2 million. The modifications primarily represented instances where we were adequately compensated through additional collateral and a higher interest rate or there was an insignificant delay in payment. As of June 30, 2014 we have no commitments to lend additional funds on any TDRs.

Defaulted TDRs are defined as loans having a payment default of 90 days or more after the restructuring takes place. The following tables present a summary of TDRs which defaulted during the periods presented that had been restructured within the last twelve months prior to defaulting:

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued

NOTE 5. LOANS AND LOANS HELD FOR SALE – continued

	Defaulted TDRs
	For the Three Months ended June 30, 2014			For the Three Months ended June 30, 2013
(dollars in thousands)	Number of Defaults	Recorded Investment		Number of Defaults		Recorded Investment
Commercial real estate	—	$	—	$	—	$	—
Commercial and Industrial	—	—		—		—
Commercial construction	—	—		—		—
Residential real estate	—	—		2		46
Home equity	—	—		2		33
Total	—	$	—	$	4	$	79
	Defaulted TDRs
	For the Six Months Ended June 30, 2014			For the Six Months Ended June 30, 2013
(dollars in thousands)	Number of Defaults	Recorded Investment		Number of Defaults		Recorded Investment
Commercial real estate	—	$	—	$	—	$	—
Commercial and Industrial	—	—		—		—
Commercial construction	—	—		—		—
Residential real estate	1	72		3		64
Home equity	—	—		4		151
Total	1	$	72	$	7	$	215

The following table is a summary of nonperforming assets as of the dates presented:

	Nonperforming Assets
(dollars in thousands)	June 30, 2014		December 31, 2013
Nonperforming Assets
Nonaccrual loans	$	9,698	$	12,387
Nonaccrual TDRs	5,241		10,067
Total nonaccrual loans	14,939		22,454
OREO	431		410
Total Nonperforming Assets	$	15,370	$	22,864

OREO consists of eight properties and is included in other assets in the Consolidated Balance Sheets. It is our policy to obtain OREO appraisals on an annual basis.

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S&T BANCORP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued

NOTE 6. ALLOWANCE FOR LOAN LOSSES

We maintain an allowance for loan losses, or ALL, at a level determined to be adequate to absorb estimated probable credit losses inherent in the loan portfolio as of the balance sheet date. We develop and document a systematic ALL methodology based on the following portfolio segments: 1) CRE, 2) C&I, 3) Commercial Construction, 4) Consumer Real Estate and 5) Other Consumer.

The following are key risks within each portfolio segment:

CRE—Loans secured by commercial purpose real estate, including both owner occupied properties and investment properties, for various purposes such as hotels, strip malls and apartments. Operations of the individual projects as well as global cash flows of the debtors are the primary sources of repayment for these loans. The condition of the local economy is an important indicator of risk, but there are also more specific risks depending on the collateral type as well as the business prospects of the lessee, if the project is not owner occupied.

C&I—Loans made to operating companies or manufacturers for the purpose of production, operating capacity, accounts receivable, inventory or equipment financing. Cash flow from the operations of the company is the primary source of repayment for these loans. The condition of the local economy is an important indicator of risk, but there are also more specific risks depending on the industry of the company. Collateral for these types of loans often do not have sufficient value in a distressed or liquidation scenario to satisfy the outstanding debt.

Commercial Construction—Loans made to finance construction of buildings or other structures, as well as to finance the acquisition and development of raw land for various purposes. While the risk of these loans is generally confined to the construction period, if there are problems, the project may not be complete, and as such, may not provide sufficient cash flow on its own to service the debt or have sufficient value in a liquidation to cover the outstanding principal. The condition of the local economy is an important indicator of risk, but there are also more specific risks depending on the type of project and the experience and resources of the developer.

Consumer Real Estate—Loans secured by first and second liens such as home equity loans, home equity lines of credit and 1-4 family residences, including purchase money mortgages. The primary source of repayment for these loans is the income and assets of the borrower. The condition of the local economy, in particular the unemployment rate, is an important indicator of risk for this segment. The state of the local housing market can also have a significant impact on this segment because low demand and/or declining home values can limit the ability of borrowers to sell a property and satisfy the debt.

Other Consumer—Loans made to individuals that may be secured by assets other than 1-4 family residences, as well as unsecured loans. This segment includes auto loans, unsecured loans and lines and credit cards. The primary source of repayment for these loans is the income and assets of the borrower. The condition of the local economy, in particular the unemployment rate, is an important indicator of risk for this segment. The value of the collateral, if there is any, is less likely to be a source of repayment due to less certain collateral values.

We further assess risk within each portfolio segment by pooling loans with similar risk characteristics. For the commercial loan classes, the most important indicator of risk is the internally assigned risk rating, including pass, special mention and substandard. Consumer loans are pooled by type of collateral, lien position and loan to value ratio for consumer real estate loans. Historical loss rates are applied to these loan pools to determine the reserve for loans collectively evaluated for impairment.

We continually monitor our ALL methodology to ensure that it is responsive to the current economic environment. No changes were made to our ALL methodology for the six months ended June 30, 2014.

Management monitors various credit quality indicators for both the commercial and consumer loan portfolios, including delinquency, nonperforming status and changes in risk ratings on a monthly basis.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued

NOTE 6. ALLOWANCE FOR LOAN LOSSES

The following tables present the age analysis of past due loans segregated by class of loans as of June 30, 2014 and December 31, 2013:

	June 30, 2014
(dollars in thousands)	Current		30-59 Days Past Due		60-89 Days Past Due		Nonaccrual		Total Past Due		Total Loans
Commercial real estate	$	1,629,928	$	753	$	44	$	5,658	$	6,455	$	1,636,383
Commercial and industrial	918,846		559		249		2,537		3,345		922,191
Commercial construction	185,428		—		1,014		1,869		2,883		188,311
Residential mortgage	488,551		1,022		898		2,118		4,038		492,589
Home equity	412,851		1,466		478		1,431		3,375		416,226
Installment and other consumer	65,380		364		68		26		458		65,838
Consumer construction	3,541		—		—		—		—		3,541
Loans held for sale	1,802		—		—		1,300		1,300		3,102
Totals	$	3,706,327	$	4,164	$	2,751	$	14,939	$	21,854	$	3,728,181
	December 31, 2013
(dollars in thousands)	Current		30-59 Days Past Due		60-89 Days Past Due		Nonaccrual		Total Past Due		Total Loans
Commercial real estate	$	1,595,590	$	1,209	$	207	$	10,750	$	12,166	$	1,607,756
Commercial and industrial	836,276		2,599		278		3,296		6,173		842,449
Commercial construction	139,133		1,049		751		2,742		4,542		143,675
Residential mortgage	481,260		828		1,666		3,338		5,832		487,092
Home equity	408,777		2,468		659		2,291		5,418		414,195
Installment and other consumer	67,420		382		44		37		463		67,883
Consumer construction	3,149		—		—		—		—		3,149
Loans held for sale	2,136		—		—		—		—		2,136
Totals	$	3,533,741	$	8,535	$	3,605	$	22,454	$	34,594	$	3,568,335

We continually monitor the commercial loan portfolio through an internal risk rating system. Loan risk ratings are assigned based upon the creditworthiness of the borrower and are reviewed on an ongoing basis according to our internal policies. Loans within the pass rating generally have a lower risk of loss than loans risk rated as special mention or substandard.

Our risk ratings are consistent with regulatory guidance and are as follows:

Pass—The loan is currently performing and is of high quality.

Special Mention—A special mention loan has potential weaknesses that warrant management’s close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects or in the strength of our credit position at some future date. Economic and market conditions, beyond the borrower’s control, may in the future necessitate this classification.

Substandard—A substandard loan is not adequately protected by the net worth and/or paying capacity of the borrower or by the collateral pledged, if any. Substandard loans have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. These loans are characterized by the distinct possibility that we will sustain some loss if the deficiencies are not corrected.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued

NOTE 6. ALLOWANCE FOR LOAN LOSSES

The following tables summarize the recorded investment in commercial loan classes by internally assigned risk ratings as of the dates presented:

	June 30, 2014
(dollars in thousands)	Commercial Real Estate		% of Total		Commercial and Industrial		% of Total		Commercial Construction		% of Total		Total		% of Total
Pass	$	1,563,882	95.6	%	$	872,686	94.6	%	$	167,267	88.8	%	$	2,603,835	94.8	%
Special mention	45,275		2.8	%	33,966		3.7	%	12,882		6.8	%	92,123		3.4	%
Substandard	27,226		1.6	%	15,539		1.7	%	8,162		4.4	%	50,927		1.8	%
Total	$	1,636,383	100	%	$	922,191	100.0	%	$	188,311	100.0	%	$	2,746,885	100.0	%
	December 31, 2013
(dollars in thousands)	Commercial Real Estate		% of Total		Commercial and Industrial		% of Total		Commercial Construction		% of Total		Total		% of Total
Pass	$	1,519,720	94.5	%	$	792,029	94.0	%	$	119,177	82.9	%	$	2,430,926	93.7	%
Special mention	57,073		3.6	%	34,085		4.1	%	15,621		10.9	%	106,779		4.1	%
Substandard	30,963		1.9	%	16,335		1.9	%	8,877		6.2	%	56,175		2.2	%
Total	$	1,607,756	100.0	%	$	842,449	100.0	%	$	143,675	100.0	%	$	2,593,880	100.0	%

We monitor the delinquent status of the consumer portfolio on a monthly basis. Loans are considered nonperforming when interest and principal are 90 days or more past due or management has determined that a material deterioration in the borrower’s financial condition exists. The risk of loss is generally highest for nonperforming loans.

The following tables indicate the recorded investment in consumer loan classes by performing and nonperforming status as of the dates presented:

	June 30, 2014
(dollars in thousands)	Residential Mortgage		% of Total		Home Equity		% of Total		Installment and other consumer		% of Total		Consumer Construction		% of Total		Total		% of Total
Performing	$	490,471	99.6	%	$	414,795	99.7	%	$	65,812	99.9	%	$	3,541	100.0	%	$	974,619	99.6	%
Nonperforming	2,118		0.4	%	1,431		0.3	%	26		0.1	%	—		—	%	3,575		0.4	%
Total	$	492,589	100.0	%	$	416,226	100.0	%	$	65,838	100.0	%	$	3,541	100.0	%	$	978,194	100.0	%
	December 31, 2013
(dollars in thousands)	Residential Mortgage		% of Total		Home Equity		% of Total		Installment and other consumer		% of Total		Consumer Construction		% of Total		Total		% of Total
Performing	$	483,754	99.3	%	$	411,904	99.4	%	$	67,846	99.9	%	$	3,149	100.0	%	$	966,653	99.4	%
Nonperforming	3,338		0.7	%	2,291		0.6	%	37		0.1	%	—		—	%	5,666		0.6	%
Total	$	487,092	100.0	%	$	414,195	100.0	%	$	67,883	100.0	%	$	3,149	100.0	%	$	972,319	100.0	%

We individually evaluate all substandard and nonaccrual commercial loans greater than $0.5 million for impairment. Loans are considered to be impaired when based upon current information and events it is probable that we will be unable to collect all principal and interest payments due according to the original contractual terms of the loan agreement. All TDRs are considered to be impaired loans and will be reported as an impaired loan for the remaining life of the loan, unless the restructuring agreement specifies an interest rate equal to or greater than the rate that would be accepted at the time of the restructuring for a new loan with comparable risk and it is expected that the remaining principal and interest will be fully collected according to the restructured agreement. For all TDRs, regardless of size, as well as all other impaired loans, we conduct further analysis to determine the probable loss and assign a specific reserve to the loan if deemed appropriate.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued

NOTE 6. ALLOWANCE FOR LOAN LOSSES

The following table presents investments in loans considered to be impaired and related information on those impaired loans for the periods presented:

	June 30, 2014						December 31, 2013
(dollars in thousands)	Recorded Investment		Unpaid Principal Balance		Related Allowance		Recorded Investment		Unpaid Principal Balance		Related Allowance
Without a related allowance recorded:
Commercial real estate	$	21,228	$	28,296	$	—	$	26,968	$	35,474	$	—
Commercial and industrial	9,545		9,660		—		9,580		9,703		—
Commercial construction	8,179		11,866		—		7,391		12,353		—
Consumer real estate	7,082		7,629		—		8,026		9,464		—
Other consumer	107		109		—		124		128		—
Total without a Related Allowance Recorded	46,141		57,560		—		52,089		67,122		—
With a related allowance recorded:
Commercial real estate	—		—		—		—		—		—
Commercial and industrial	—		—		—		—		—		—
Commercial construction	—		—		—		681		1,383		25
Consumer real estate	47		47		47		53		53		53
Other consumer	21		21		11		33		33		19
Total with a Related Allowance Recorded	68		68		58		767		1,469		97
Total:
Commercial real estate	21,228		28,296		—		26,968		35,474		—
Commercial and industrial	9,545		9,660		—		9,580		9,703		—
Commercial construction	8,179		11,866		—		8,072		13,736		25
Consumer real estate	7,129		7,676		47		8,079		9,517		53
Other consumer	128		130		11		157		161		19
Total	$	46,209	$	57,628	$	58	$	52,856	$	68,591	$	97

As of June 30, 2014, CRE loans of $21.2 million comprised 46 percent of the total impaired loans of $46.2 million. These impaired loans are collateralized primarily by commercial real estate properties such as retail or strip malls, office buildings and various other types of commercial purpose properties. These loans are generally considered collateral dependent and charge-offs are recorded when a confirmed loss exists. Approximately $7.9 million of charge-offs have been recorded relating to these CRE loans over the life of these loans. It is our policy to order appraisals on an annual basis on impaired loans or sooner if facts and circumstances warrant. As of June 30, 2014, an estimated fair value less cost to sell of approximately $34.7 million existed for CRE impaired loans. We have current appraisals on all but $0.6 million of the $21.2 million of impaired CRE loans. We have not ordered an appraisal on this loan due to an outstanding settlement agreement with the borrower which would result in the collection of the remaining recorded investment in the loan.

29

S&T BANCORP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued

NOTE 6. ALLOWANCE FOR LOAN LOSSES

The following tables summarize investments in loans considered to be impaired and related information on those impaired loans for the periods presented:

	For the Three Months Ended
	June 30, 2014				June 30, 2013
(dollars in thousands)	Average Recorded Investment		Interest Income Recognized		Average Recorded Investment		Interest Income Recognized
Without a related allowance recorded:
Commercial real estate	$	21,382	$	159	$	30,956	$	174
Commercial and industrial	9,317		57		12,452		66
Commercial construction	8,279		57		16,376		87
Consumer real estate	7,166		100		8,708		156
Other consumer	109		1		114		2
Total without a Related Allowance Recorded	46,253		374		68,606		485
With a related allowance recorded:
Commercial real estate	—		—		2,084		—
Commercial and industrial	—		—		—		—
Commercial construction	—		—		—		—
Consumer real estate	48		1		86		4
Other consumer	22		—		28		1
Total with a Related Allowance Recorded	70		1		2,198		5
Total:
Commercial real estate	21,382		159		33,040		174
Commercial and industrial	9,317		57		12,452		66
Commercial construction	8,279		57		16,376		87
Consumer real estate	7,214		101		8,794		160
Other consumer	131		1		142		3
Total	$	46,323	$	375	$	70,804	$	490

30

S&T BANCORP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued

NOTE 6. ALLOWANCE FOR LOAN LOSSES

	For the Six Months Ended
	June 30, 2014				June 30, 2013
(dollars in thousands)	Average Recorded Investment		Interest Income Recognized		Average Recorded Investment		Interest Income Recognized
Without a related allowance recorded:
Commercial real estate	$	21,980	$	329	$	31,181	$	415
Commercial and industrial	9,066		114		12,449		135
Commercial construction	8,301		114		16,854		221
Consumer real estate	7,260		203		9,194		215
Other consumer	112		2		106		2
Total without a Related Allowance Recorded	46,719		762		69,784		988
With a related allowance recorded:
Commercial real estate	$	—	$	—	3,282		$	—
Commercial and industrial	—		—		—		—
Commercial construction	—		—		—		—
Consumer real estate	50		2		43		4
Other consumer	23		1		14		1
Total with a Related Allowance Recorded	73		3		3,339		5
Total:
Commercial real estate	21,980		329		34,463		415
Commercial and industrial	9,066		114		12,449		135
Commercial construction	8,301		114		16,854		221
Consumer real estate	7,310		205		9,237		219
Other consumer	135		3		120		3
Total	$	46,792	$	765	$	73,123	$	993

31

S&T BANCORP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued

NOTE 6. ALLOWANCE FOR LOAN LOSSES

The following tables detail activity in the ALL for the periods presented:

	Three Months Ended June 30, 2014
(dollars in thousands)	Commercial Real Estate			Commercial and Industrial			Commercial Construction			Consumer Real Estate			Other Consumer			Total Loans
Balance at beginning of period	$	19,880		$	13,979		$	5,183		$	6,408		$	1,166		$	46,616
Charge-offs	(1,737		)	(743		)	(664		)	(425		)	(177		)	(3,746		)
Recoveries	1,294			2,936			324			164			126			4,844
Net Recoveries/ (Charge-offs)	(443		)	2,193			(340		)	(261		)	(51		)	1,098
Provision for loan losses	1,296			(3,168		)	(84		)	558			264			(1,134		)
Balance at End of Period	$	20,733		$	13,004		$	4,759		$	6,705		$	1,379		$	46,580
	Three Months Ended June 30, 2013
(dollars in thousands)	Commercial Real Estate			Commercial and Industrial			Commercial Construction			Consumer Real Estate			Other Consumer			Total Loans
Balance at beginning of period	$	24,442		$	8,676		$	6,603		$	5,259		$	956		$	45,936
Charge-offs	(1,170		)	(563		)	(54		)	(743		)	(399		)	(2,929		)
Recoveries	1,572			190			2			225			86			2,075
Net (Charge-offs)/ Recoveries	402			(373		)	(52		)	(518		)	(313		)	(854		)
Provision for loan losses	(1,360		)	820			(739		)	1,914			388			1,023
Balance at End of Period	$	23,484		$	9,123		$	5,812		$	6,655		$	1,031		$	46,105
	Six Months Ended June 30, 2014
(dollars in thousands)	Commercial Real Estate			Commercial and Industrial			Commercial Construction			Consumer Real Estate			Other Consumer			Total Loans
Balance at beginning of period	$	18,921		$	14,433		$	5,374		$	6,362		$	1,165		$	46,255
Charge-offs	(2,004		)	(1,033		)	(692		)	(547		)	(445		)	(4,721		)
Recoveries	1,834			3,249			375			223			210			5,891
Net Recoveries/ (Charge-offs)	(170		)	2,216			(317		)	(324		)	(235		)	1,170
Provision for loan losses	1,982			(3,645		)	(298		)	667			449			(845		)
Balance at End of Period	$	20,733		$	13,004		$	4,759		$	6,705		$	1,379		$	46,580
	Six Months Ended June 30, 2013
(dollars in thousands)	Commercial Real Estate			Commercial and Industrial			Commercial Construction			Consumer Real Estate			Other Consumer			Total Loans
Balance at beginning of period	$	25,246		$	7,759		$	7,500		$	5,058		$	921		$	46,484
Charge-offs	(2,809		)	(1,923		)	(443		)	(1,237		)	(651		)	(7,063		)
Recoveries	2,322			290			55			508			179			3,354
Net (Charge-offs)/ Recoveries	(487		)	(1,633		)	(388		)	(729		)	(472		)	(3,709		)
Provision for loan losses	(1,275		)	2,997			(1,300		)	2,326			582			3,330
Balance at End of Period	$	23,484		$	9,123		$	5,812		$	6,655		$	1,031		$	46,105

32

S&T BANCORP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued

NOTE 6. ALLOWANCE FOR LOAN LOSSES

The following tables present the ALL and recorded investments in loans by category as of June 30, 2014 and December 31, 2013:

	June 30, 2014
	Allowance for Loan Losses						Portfolio Loans
(dollars in thousands)	Individually Evaluated for Impairment		Collectively Evaluated for Impairment		Total		Individually Evaluated for Impairment		Collectively Evaluated for Impairment		Total
Commercial real estate	$	—	$	20,733	$	20,733	$	21,228	$	1,615,155	$	1,636,383
Commercial and industrial	—		13,004		13,004		9,545		912,646		922,191
Commercial construction	—		4,759		4,759		8,179		180,132		188,311
Consumer real estate	47		6,658		6,705		7,129		905,227		912,356
Other consumer	11		1,368		1,379		128		65,710		65,838
Total	$	58	$	46,522	$	46,580	$	46,209	$	3,678,870	$	3,725,079
	December 31, 2013
	Allowance for Loan Losses						Portfolio Loans
(dollars in thousands)	Individually Evaluated for Impairment		Collectively Evaluated for Impairment		Total		Individually Evaluated for Impairment		Collectively Evaluated for Impairment		Total
Commercial real estate	$	—	$	18,921	$	18,921	$	26,968	$	1,580,788	$	1,607,756
Commercial and industrial	—		14,433		14,433		9,580		832,869		842,449
Commercial construction	25		5,349		5,374		8,072		135,603		143,675
Consumer real estate	53		6,309		6,362		8,079		896,357		904,436
Other consumer	19		1,146		1,165		157		67,726		67,883
Total	$	97	$	46,158	$	46,255	$	52,856	$	3,513,343	$	3,566,199

33

S&T BANCORP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued

NOTE 7. DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES

Interest Rate Swaps

Interest rate swaps are contracts in which a series of interest rate flows (fixed and variable) are exchanged over a prescribed period. The notional amounts on which the interest payments are based are not exchanged. These derivative positions relate to transactions in which we enter into an interest rate swap with a commercial customer while at the same time entering into an offsetting interest rate swap with another financial institution. In connection with each transaction, we agree to pay interest to the customer on a notional amount at a variable interest rate and receive interest from the customer on the same notional amount at a fixed rate. At the same time, we agree to pay another financial institution the same fixed interest rate on the same notional amount and receive the same variable interest rate on the same notional amount. The transaction allows our customer to effectively convert a variable rate loan to a fixed rate loan with us receiving a variable rate. These agreements could have floors or caps on the contracted interest rates.

Pursuant to our agreements with various financial institutions, we may receive collateral or may be required to post collateral based upon mark-to-market positions. Beyond unsecured threshold levels, collateral in the form of cash or securities may be made available to counterparties of interest rate swap transactions. Based upon our current positions and related future collateral requirements relating to them, we believe any effect on our cash flow or liquidity position to be immaterial.

Derivatives contain an element of credit risk, such as the possibility that we will incur a loss because a counterparty, which may be a financial institution or a customer, fails to meet its contractual obligations. All derivative contracts with financial institutions may be executed only with counterparties approved by our Asset and Liability Committee, or ALCO, and derivatives with customers may only be executed with customers within credit exposure limits approved by our Senior Loan Committee. Interest rate swaps are considered derivatives, but are not accounted for using hedge accounting. As such, changes in the fair value of the derivatives are recorded in current earnings and included in other noninterest income in the Consolidated Statements of Comprehensive Income.

Interest Rate Lock Commitments and Forward Sale Contracts

In the normal course of business, we sell originated mortgage loans into the secondary mortgage loan market. We also offer interest rate lock commitments to potential borrowers. The commitments are generally for 60 days and guarantee a specified interest rate for a loan if underwriting standards are met, but the commitment does not obligate the potential borrower to close on the loan. Accordingly, some commitments expire prior to becoming loans. We can encounter pricing risk if interest rates increase significantly before the loan can be closed and sold. We may utilize forward sale contracts in order to mitigate this pricing risk. Whenever a customer desires these products, a mortgage originator quotes a secondary market rate guaranteed for that day by the investor. The rate lock is executed between the mortgagee and us and in turn a forward sale contract may be executed between us and the investor. Both the interest rate lock commitment and the corresponding forward sale contract for each customer are considered derivatives, but are not accounted for using hedge accounting. As such, changes in the fair value of the derivatives during the commitment period are recorded in current earnings and included in mortgage banking in the Consolidated Statements of Comprehensive Income.

34

S&T BANCORP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued

NOTE 7. DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES – continued

The following table indicates the amounts representing the value of derivative assets and derivative liabilities as of the dates presented:

	Derivatives (included in Other Assets)				Derivatives (included in Other Liabilities)
(dollars in thousands)	June 30, 2014		December 31, 2013		June 30, 2014		December 31, 2013
Derivatives not Designated as Hedging Instruments
Interest Rate Swap Contracts—Commercial Loans
Fair value	$	14,082	$	13,698	$	14,050	$	13,647
Notional amount	245,865		261,754		245,865		261,754
Collateral posted	—		—		11,559		12,611
Interest Rate Lock Commitments—Mortgage Loans
Fair value	292		85		—		—
Notional amount	9,594		3,989		—		—
Forward Sale Contracts—Mortgage Loans
Fair value	—		34		59		—
Notional amount	$	—	$	5,250	$	7,210	$	—

Presenting offsetting derivatives that are subject to legally enforceable netting arrangements with the same party is permitted. For example, we may have a derivative asset as well as a derivative liability with the same counterparty to a swap transaction and are permitted to offset the asset position and the liability position resulting in a net presentation.

The following table indicates the gross amounts of commercial loan swap derivative assets and derivative liabilities, the amounts offset and the carrying values in the Consolidated Balance Sheets as of the dates presented:

	Derivatives (included in Other Assets)						Derivatives (included in Other Liabilities)
(dollars in thousands)	June 30, 2014			December 31, 2013			June 30, 2014			December 31, 2013
Derivatives not Designated as Hedging Instruments
Gross amounts recognized	$	14,349		$	14,012		$	14,317		$	13,961
Gross amounts offset	(267		)	(314		)	(267		)	(314		)
Net amounts presented in the Consolidated Balance Sheets	14,082			13,698			14,050			13,647
Gross amounts not offset(1)	—			—			(11,559		)	(12,611		)
Net Amount	$	14,082		$	13,698		$	2,491		$	1,036

⁽¹⁾ Amounts represent posted collateral.

The following table indicates the gain or loss recognized in income on derivatives for the periods presented:

	Three Months Ended June 30,						Six Months Ended June 30,
(dollars in thousands)	2014			2013			2014			2013
Derivatives not Designated as Hedging Instruments
Interest rate swap contracts—commercial loans	$	(11	)	$	(27	)	$	(19	)	$	(156	)
Interest rate lock commitments—mortgage loans	199			(266		)	207			(492		)
Forward sale contracts—mortgage loans	(64		)	381			(93		)	405
Total Derivatives Gain (Loss)	$	124		$	88		$	95		$	(243	)

35

S&T BANCORP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued

NOTE 8. BORROWINGS

Short-term borrowings are for terms under one year and were comprised of securities sold under repurchase agreements, or REPOs, and Federal Home Loan Bank, or FHLB, advances. Our REPOs were with our local retail customers. Securities pledged as collateral under these REPO financing arrangements cannot be sold or repledged by the secured party and are therefore accounted for as a secured borrowing. FHLB advances are for various terms secured by a blanket lien on our residential mortgages and other real estate secured loans.

Long-term borrowings are for original terms greater than one year and were comprised of FHLB advances, a capital lease and junior subordinated debt securities. Long-term FHLB advances have the same collateral requirements as their short-term equivalents. We had total long-term borrowings outstanding of $17.3 million at a fixed rate and $48.7 million at a variable rate at June 30, 2014, excluding our capital lease of $0.2 million.

Information pertaining to borrowings is summarized in the table below as of the dates presented:

	June 30, 2014				December 31, 2013
(dollars in thousands)	Balance		Weighted Average Rate		Balance		Weighted Average Rate
Short-term borrowings
Securities sold under repurchase agreements	$	25,269	0.01	%	$	33,847	0.01	%
Short-term borrowings	185,000		0.28	%	140,000		0.30	%
Total short-term borrowings	210,269		0.25	%	173,847		0.24	%
Long-term borrowings
Other long-term borrowings	20,636		2.98	%	21,810		3.01	%
Junior subordinated debt securities	45,619		2.69	%	45,619		2.70	%
Total long-term borrowings	66,255		2.78	%	67,429		2.80	%
Total Borrowings	$	276,524	0.85	%	$	241,276	0.96	%

We had total borrowings at June 30, 2014 and December 31, 2013 at the FHLB of Pittsburgh of $205.4 million and $161.6 million. This consisted of $185.0 million in short-term borrowings and $20.4 million in long-term borrowings at June 30, 2014. Our maximum borrowing capacity with the FHLB of Pittsburgh was $1.6 billion at June 30, 2014, with a remaining borrowing availability of $1.4 billion.

36

S&T BANCORP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued

NOTE 9. COMMITMENTS AND CONTINGENCIES

Commitments

In the normal course of business, we offer off-balance sheet credit arrangements to enable our customers to meet their financing objectives. These instruments involve, to varying degrees, elements of credit and interest rate risk in excess of the amount recognized in the financial statements. Our exposure to credit loss, in the event a customer does not satisfy the terms of their agreement, equals the contractual amount of the obligation less the value of any collateral. We apply the same credit policies in making commitments and standby letters of credit that are used for the underwriting of loans to customers. Commitments generally have fixed expiration dates, annual renewals or other termination clauses and may require payment of a fee. Since many of the commitments are expected to expire without being drawn upon; the total commitment amounts do not necessarily represent future cash requirements. Our allowance for unfunded commitments totaled $3.1 million at June 30, 2014 and $2.9 million at December 31, 2013. The allowance for unfunded commitments is included in other liabilities in the Consolidated Balance Sheets.

Estimates of the fair value of these off-balance sheet items were not made because of the short-term nature of these arrangements and the credit standing of the counterparties.

The following table sets forth the commitments and letters of credit as of the dates presented:

(dollars in thousands)	June 30, 2014		December 31, 2013
Commitments to extend credit	$	1,117,511	$	1,038,529
Standby letters of credit	78,427		78,639
Total	$	1,195,938	$	1,117,168

Litigation

In the normal course of business, we are subject to various legal and administrative proceedings and claims. While any type of litigation contains a level of uncertainty, we believe that the outcome of such proceedings or claims will not have a material adverse effect on our consolidated financial position.

37

S&T BANCORP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued

NOTE 10. OTHER COMPREHENSIVE INCOME

The following table presents the tax effects of the components of other comprehensive income (loss) for the periods presented:

	Three Months Ended June 30, 2014									Three Months Ended June 30, 2013
(dollars in thousands)	Pre-Tax Amount			Tax (Expense) Benefit			Net of Tax Amount			Pre-Tax Amount			Tax (Expense) Benefit			Net of Tax Amount
Change in unrealized gains/losses on securities available-for-sale	$	5,401		$	(1,891	)	$	3,510		$	(12,061	)	$	4,221		$	(7,840	)
Reclassification adjustment for net (gains)/losses on securities available-for-sale included in net income (1)	(40		)	15			(25		)	—			—			—
Adjustment to funded status of employee benefit plans	211			(74		)	137			598			(210		)	388
Other Comprehensive Income (Loss)	$	5,572		$	(1,950	)	$	3,622		$	(11,463	)	$	4,011		$	(7,452	)
(1) Reclassification adjustments are comprised of realized security gains. The gains have been reclassified out of accumulated other comprehensive income (loss) and have affected certain lines in the Consolidated Statements of Comprehensive Income as follows; the pre-tax amount is included in securities gains-net, the tax expense amount is included in the provision for income taxes and the net of tax amount is included in net income.
	Six Months Ended June 30, 2014									Six Months Ended June 30, 2013
(dollars in thousands)	Pre-Tax Amount			Tax (Expense) Benefit			Net of Tax Amount			Pre-Tax Amount			Tax (Expense) Benefit			Net of Tax Amount
Change in unrealized gains/losses on securities available-for-sale	$	9,876		$	(3,457	)	$	6,419		$	(13,829	)	$	4,840		$	(8,989	)
Reclassification adjustment for net (gains)/losses on securities available-for-sale included in net income (1)	(41		)	15			(26		)	(2		)	1			(1		)
Adjustment to funded status of employee benefit plans	423			(148		)	275			1,196			(419		)	777
Other Comprehensive Income (Loss)	$	10,258		$	(3,590	)	$	6,668		$	(12,635	)	$	4,422		$	(8,213	)
(1) Reclassification adjustments are comprised of realized security gains. The gains have been reclassified out of accumulated other comprehensive income and have affected certain lines in the consolidated statement of comprehensive income as follows; the pre-tax amount is included in securities gains-net, the tax expense amount is included in the provision for income taxes and the net of tax amount is included in net income.

38

S&T BANCORP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued

NOTE 11. EMPLOYEE BENEFITS

We maintain a defined benefit pension plan, or Plan, covering substantially all employees hired prior to January 1, 2008. The benefits are based on years of service and the employee’s compensation for the highest five consecutive years in the last ten years. Contributions are intended to provide for benefits attributed to employee service to date and for those benefits expected to be earned in the future. At this time, we are not required to make a cash contribution to the Plan in 2014. The expected long-term rate of return on plan assets is 8.00 percent. Through June 30, 2014, there have been no changes to the Plan.

The following table summarizes the components of net periodic pension cost for the periods presented:

	Three Months Ended June 30,						Six Months Ended June 30,
(dollars in thousands)	2014			2013			2014			2013
Components of Net Periodic Pension Cost
Service cost—benefits earned during the period	$	631		$	708		$	1,262		$	1,416
Interest cost on projected benefit obligation	1,106			996			2,212			1,992
Expected return on plan assets	(1,735		)	(1,565		)	(3,470		)	(3,130		)
Amortization of prior service cost (credit)	(35		)	(34		)	(70		)	(68		)
Recognized net actuarial loss	209			588			418			1,176
Net Periodic Pension Expense	$	176		$	693		$	352		$	1,386

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S&T BANCORP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued

NOTE 12. SEGMENTS

We manage three reportable operating segments including Community Banking, Insurance and Wealth Management.

• Our Community Banking segment offers services which include accepting time and demand deposit accounts, originating commercial and consumer loans and providing letters of credit and credit card services.

• Our Insurance segment includes a full-service insurance agency offering commercial property and casualty insurance, group life and health coverage, employee benefit solutions and personal insurance lines.

• Our Wealth Management segment offers discount brokerage services, services as executor and trustee under wills and deeds, guardian and custodian of employee benefits and other trust and brokerage services, as well as a registered investment advisor that manages private investment accounts for individuals and institutions.

The following table represents total assets by reportable operating segment as of the dates presented:

(dollars in thousands)	June 30, 2014		December 31, 2013
Community Banking	$	4,778,233	$	4,524,939
Insurance	7,715		6,926
Wealth Management	2,082		1,325
Total Assets	$	4,788,030	$	4,533,190

The following tables provide financial information for our three segments for the three and six month periods ended June 30, 2014 and 2013. The financial results of the business segments include allocations for shared services based on an internal analysis that supports line of business performance measurement. Shared services include expenses such as employee benefits, occupancy expense, computer support and corporate overhead. Even with these allocations, the financial results are not necessarily indicative of the business segments’ financial condition and results of operations if they existed as independent entities. The information provided under the caption “Eliminations” represents operations not considered to be reportable segments and/or general operating expenses and eliminations and adjustments, which are necessary for purposes of reconciling to the Consolidated Financial Statements.

	Three Months Ended June 30, 2014
(dollars in thousands)	Community Banking			Insurance		Wealth Management		Eliminations			Consolidated
Interest income	$	39,845		$	—	$	136	$	(109	)	$	39,872
Interest expense	3,415			—		—		(398		)	3,017
Net interest income	36,430			—		136		289			36,855
Provision for loan losses	(1,134		)	—		—		—			(1,134		)
Noninterest income	7,522			1,245		2,828		176			11,771
Noninterest expense	25,092			1,044		2,442		465			29,043
Depreciation expense	805			13		7		—			825
Amortization of intangible assets	274			13		10		—			297
Provision for income taxes	4,637			61		177		—			4,875
Net Income	$	14,278		$	114	$	328	$	—		$	14,720

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S&T BANCORP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued

NOTE 12. SEGMENTS – continued

	Three Months Ended June 30, 2013
(dollars in thousands)	Community Banking			Insurance		Wealth Management		Eliminations			Consolidated
Interest income	$	38,505		$	—	$	135	$	(87	)	$	38,553
Interest expense	4,663			—		—		(706		)	3,957
Net interest income	33,842			—		135		619			34,596
Provision for loan losses	1,023			—		—		—			1,023
Noninterest income	8,467			1,349		2,812		239			12,867
Noninterest expense	21,786			1,105		2,389		1,797			27,077
Depreciation expense	876			12		8		—			896
Amortization of intangible assets	387			13		13		—			413
Provision (benefit) for income taxes	4,592			77		221		(939		)	3,951
Net Income	$	13,645		$	142	$	316	$	—		$	14,103
	Six Months Ended June 30, 2014
(dollars in thousands)	Community Banking			Insurance		Wealth Management		Eliminations			Consolidated
Interest income	$	78,475		$	—	$	310	$	(248	)	$	78,537
Interest expense	6,897			—		—		(806		)	6,091
Net interest income	71,578			—		310		558			72,446
Provision for loan losses	(845		)	—		—		—			(845		)
Noninterest income	14,375			2,766		5,764		282			23,187
Noninterest expense	49,066			2,199		4,716		840			56,821
Depreciation expense	1,607			25		13		—			1,645
Amortization of intangible assets	566			25		22		—			613
Provision for income taxes	8,002			181		463		—			8,646
Net Income	$	27,557		$	336	$	860	$	—		$	28,753
	Six Months Ended June 30, 2013
(dollars in thousands)	Community Banking			Insurance		Wealth Management		Eliminations			Consolidated
Interest income	$	76,194		$	1	$	273	$	(72	)	$	76,396
Interest expense	9,454			—		—		(1,323		)	8,131
Net interest income	66,740			1		273		1,251			68,265
Provision for loan losses	3,330			—		—		—			3,330
Noninterest income	18,823			2,947		5,386		517			27,673
Noninterest expense	46,427			2,552		4,878		3,468			57,325
Depreciation expense	1,795			22		16		—			1,833
Amortization of intangible assets	792			26		26		—			844
Provision (benefit) for income taxes	7,438			122		313		(1,700		)	6,173
Net Income	$	25,781		$	226	$	426	$	—		$	26,433

41

S&T BANCORP, INC. AND SUBSIDIARIES

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

Management’s Discussion and Analysis of Financial Condition and Results of Operations, or MD&A, represents an overview of our consolidated results of operations and financial condition and highlights material changes in our financial condition and results of operations at and for the three and six month periods ended June 30, 2014 and 2013. Our MD&A should be read in conjunction with our Consolidated Financial Statements and notes thereto. The results of operations reported in the accompanying Consolidated Financial Statements are not necessarily indicative of results to be expected in future periods.

Important Note Regarding Forward-Looking Statements

This quarterly report on Form 10-Q contains or incorporates statements that we believe are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. These statements generally relate to our financial condition, results of operations, plans, objectives, future performance or business. They usually can be identified by the use of forward-looking language such as “will likely result,” “may,” “are expected to,” “is anticipated,” “estimate,” “forecast,” “projected,” “intends to” or other similar words. You should not place undue reliance on these statements, as they are subject to risks and uncertainties, including, but not limited to, those described in this Form 10-Q or the documents incorporated by reference. When considering these forward-looking statements, you should keep in mind these risks and uncertainties, as well as any cautionary statements we may make. Moreover, you should treat these statements as speaking only as of the date they are made and based only on information actually known to us at that time. We undertake no obligation to update publicly any forward-looking statements, whether as a result of new information, future events or otherwise.

These forward-looking statements are based on current expectations, estimates and projections about our business and beliefs and assumptions made by management. These Future Factors are not guarantees of our future performance and involve certain risks, uncertainties and assumptions, which are difficult to predict. Therefore, actual outcomes and results may differ materially from what is expressed or forecasted in these forward-looking statements.

Future Factors include:

• credit losses;

• cyber-security concerns, including an interruption or breach in the security of our information systems;

• rapid technological developments and changes;

• sensitivity to the interest rate environment including a prolonged period of low interest rates, a rapid increase in interest rates or a change in the shape of the yield curve;

• a change in spreads on interest-earning assets and interest-bearing liabilities;

• regulatory supervision and oversight, including Basel III required capital levels, and public policy changes, including environmental regulations;

• legislation affecting the financial services industry as a whole, and/or S&T or S&T Bank, in particular, including the effects of the Dodd-Frank Act;

• the outcome of pending and future litigation and governmental proceedings;

• increasing price and product/service competition, including new entrants;

• the ability to continue to introduce competitive new products and services on a timely, cost-effective basis;

• managing our internal growth and acquisitions;

• containing costs and expenses;

• reliance on significant customer relationships;

• the possibility that the anticipated benefits from acquisitions cannot be fully realized in a timely manner or at all, or that integrating future acquired operations will be more difficult, disruptive or costly than anticipated;

• general economic or business conditions, either nationally or regionally in Western Pennsylvania and our other market areas, may be less favorable than expected, resulting in among other things, a reduced demand for credit and other services;

• deterioration of the housing market and reduced demand for mortgages;

• a deterioration in the overall macroeconomic conditions or the state of the banking industry that could warrant further analysis of the carrying value of goodwill and could result in an adjustment to its carrying value resulting in a non-cash charge to net income;

• a reemergence of turbulence in significant portions of the global financial and real estate markets that could impact our performance, both directly, by affecting our revenues and the value of our assets and liabilities and indirectly, by affecting the economy generally; and

• access to capital in the amounts, at the times and on the terms required to support our future business activities.

42

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

These are representative of the Future Factors that could affect the outcome of the forward-looking statements. In addition, such statements could be affected by general industry and market conditions and growth rates, general economic conditions, including interest rate fluctuations, and other Future Factors.

Critical Accounting Policies and Estimates

Our critical accounting policies involving the significant judgments and assumptions used in the preparation of the Consolidated Financial Statements as of June 30, 2014 have remained unchanged from the disclosures presented in our Annual Report on Form 10-K for the year ended December 31, 2013 under the section “Management’s Discussion and Analysis of Financial Condition and Results of Operations.”

Overview

We are a bank holding company headquartered in Indiana, Pennsylvania with assets of $4.8 billion at June 30, 2014. We provide a full range of financial services through offices in 12 Pennsylvania counties with retail and commercial banking products, cash management services, insurance and traditional trust and discount brokerage services. We also have two loan production offices, or LPOs, in Northeast and Central Ohio. Our common stock trades on the NASDAQ Global Select Market under the symbol “STBA.”

We earn revenue primarily from interest on loans and securities and fees charged for financial services provided to our customers. Offsetting these revenues are the cost of deposits and other funding sources, provision for loan losses and other operating costs such as salaries and employee benefits, data processing, occupancy and tax expense.

Our mission is to become the financial services provider of choice within the markets that we serve. We strive to do this by delivering exceptional service and value, one customer at a time. Our strategic plan focuses on growth through expansion, acquisition and organic growth. Our strategic plan includes a collaborative model that combines expertise from all of our business segments and focuses on satisfying each customer’s individual financial objectives.

During the six months ended June 30, 2014, we successfully executed on our growth strategy through expanding into new markets and growing organically in our existing markets. On January 21, 2014, we announced the opening of an LPO in Central Ohio. On June 18, 2014, we opened a new branch with a team of experienced banking professionals in State College, Pennsylvania. During the six months ended June 30, 2014, we grew our business organically with portfolio loans increasing $158.9 million, or 4.5 percent, compared to December 31, 2013. This growth was primarily in our commercial loan portfolio.

Our focus throughout 2014 will be on loan growth and implementing opportunities to increase fee income while maintaining a strong expense discipline. The low interest rate environment will continue to challenge our net interest income, but our focus on an organic growth strategy will help to mitigate the impact in 2014. We plan to evaluate new markets and strive to replicate the success of our LPO in Northeast Ohio in our recently established LPO in Central Ohio. Our focus is also on maintaining and attracting new sales personnel to execute on our loan and fee growth strategies. Our capital position remains strong and we are well positioned to take advantage of acquisition opportunities as they arise.

Earnings Summary

Net income available to common shareholders for the three months ended June 30, 2014 was $14.7 million, or diluted earnings per share of $0.49, compared to $14.1 million, or $0.47 for the same period in 2013. Net income for the six months ended June 30, 2014 was $28.8 million, or diluted earnings per share of $0.97, compared to $26.4 million, or $0.89, for the same period in 2013. The increase in net income was primarily driven by an increase in net interest income and a lower provision for loan losses in both the three and six months ended June 30, 2014.

Net interest income increased $2.3 million, or 6.5 percent, and $4.2 million, or 6.1 percent, for the three and six month periods ended June 30, 2014 compared to the same periods in 2013. The increase in net interest income for both periods is mainly due to interest earning asset growth. Total average interest earning assets increased $219.1 million, or 5.4 percent, and $213.4 million, or 5.2 percent, for the three and six month periods ended June 30, 2014 compared to the same periods in 2013. The increase was driven by higher average loans, which is due to our successful efforts in growing our loan portfolio organically over the past year.

The provision for loan losses decreased $2.2 million for the three months ended June 30, 2014 and decreased $4.2 million for the six months ended June 30, 2014 compared to the same periods in 2013. The decrease in the provision for loan losses was due in part to net recoveries of $1.1 million and $1.2 million for the three and six months ended June 30, 2014. In addition, the lower provision was due to improving economic conditions which have positively impacted our asset quality metrics in all categories, including decreases in loan charge-offs, nonaccrual loans, special mention and substandard loans and the delinquency status of our loan portfolio.

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

Our total noninterest income decreased $1.1 million to $11.8 million for the three months ended June 30, 2014 and $4.5 million to $23.2 million for the six months ended June 30, 2014 compared to the same periods in 2013. The decrease in noninterest income for the three months ended June 30, 2014 was primarily related to a decline in mortgage banking income, debit and credit card fees and insurance fees. The decrease in noninterest income for the six months ended June 30, 2014 was primarily related to a $3.1 million gain on the sale of our merchant card servicing business that occurred in the first quarter of 2013 and decreases in mortgage banking income, debit and credit card fees and insurance fees. These decreases for the six months ended June 30, 2014 were partially offset by an increase in our wealth management fees due to new business development efforts and certain fee increases.

Total noninterest expense increased $1.8 million for the three months ended June 30, 2014 and decreased $0.9 million for the six months ended June 30, 2014 compared to the same periods in 2013. The increase for the three months ended June 30, 2014 primarily related to higher salaries and benefits due to higher incentives and other noninterest expense due to a higher provision for unfunded loan commitments. The decrease for the six months ended June 30, 2014 was due to no merger related expenses in 2014 compared to $0.8 million in 2013, and lower professional services and legal, other taxes and Federal Deposit Insurance Corporation, or FDIC, insurance.

Explanation of Use of Non-GAAP Financial Measures

In addition to the results of operations presented in accordance with generally accepted accounting principles, or GAAP, management uses, and this quarterly report contains or references, certain non-GAAP financial measures, such as net interest income on a fully taxable equivalent, or FTE, basis and operating revenue. Management believes these non-GAAP financial measures provide information useful to investors in understanding our underlying business, operational performance and performance trends as they facilitate comparisons with the performance of others in the financial services industry. Although management believes that these non-GAAP financial measures enhance investors’ understanding of our business and performance, these non-GAAP financial measures should not be considered an alternative to GAAP or considered to be more important than financial results determined in accordance with GAAP, nor are they necessarily comparable with non-GAAP measures which may be presented by other companies.

We believe the presentation of net interest income on a FTE basis ensures the comparability of net interest income arising from both taxable and tax-exempt sources and is consistent with industry practice. Interest income per the Consolidated Statements of Comprehensive Income is reconciled to net interest income adjusted to a FTE basis in the next section for the three and six months ended June 30, 2014 and 2013.

Operating revenue is the sum of net interest income and noninterest income less non-recurring income and expenses. In order to understand the significance of net interest income to our business and operating results, we believe it is appropriate to evaluate the significance of net interest income as a component of operating revenue.

44

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

RESULTS OF OPERATIONS

Three and Six Months Ended June 30, 2014 Compared to

Three and Six Months Ended June 30, 2013

Net Interest Income

Our principal source of revenue is net interest income.Net interest income represents the difference between the interest and fees earned on interest-earning assets and the interest paid on interest-bearing liabilities.Net interest income is affected by changes in the average balance of interest-earning assets and interest-bearing liabilities and changes in interest rates and spreads. Maintaining consistent spreads between interest-earning assets and interest-bearing liabilities is significant to our financial performance because net interest income comprised 76 percent of operating revenue (net interest income plus noninterest income, excluding non-recurring income and expenses) for the three and six month periods ended June 30, 2014. The level and mix of interest-earning assets and interest-bearing liabilities is managed by our Asset and Liability Committee, or ALCO, in order to mitigate interest rate and liquidity risks of the balance sheet. A variety of ALCO strategies were implemented, within prescribed ALCO risk parameters, to maintain an acceptable net interest margin on interest-earning assets.

The interest income on interest-earning assets and the net interest margin are presented on a FTE basis. The FTE basis adjusts for the tax benefit of income on certain tax-exempt loans and securities using the federal statutory tax rate of 35 percent for each period and the dividend-received deduction for equity securities. We believe this measure to be the preferred industry measurement of net interest income that provides a relevant comparison between taxable and non-taxable amounts.

The following table reconciles interest income and interest rates per the Consolidated Statements of Comprehensive Income to net interest income and rates adjusted to a FTE basis for the periods presented:

	Three Months Ended June 30,						Six Months Ended June 30,
(dollars in thousands)	2014			2013			2014			2013
Total interest income	$	39,872		$	38,553		$	78,537		$	76,396
Total interest expense	3,017			3,957			6,091			8,131
Net interest income per consolidated statements of comprehensive income	36,855			34,596			72,446			68,265
Adjustment to FTE basis	1,394			1,169			2,717			2,341
Net Interest Income (FTE) (non-GAAP)	$	38,249		$	35,765		$	75,163		$	70,606
Net interest margin	3.43		%	3.40		%	3.41		%	3.38		%
Adjustment to FTE basis	0.13		%	0.11		%	0.13		%	0.12		%
Net Interest Margin (FTE) (non-GAAP)	3.56		%	3.51		%	3.54		%	3.50		%

Income amounts are annualized for rate calculations.

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

Average Balance Sheet and Net Interest Income Analysis

The following table provides information regarding the average balances, interest and rates earned on interest-earning assets and the average balances, interest and rates paid on interest-bearing liabilities for the periods presented:

	Three Months Ended June 30, 2014							Three Months Ended June 30, 2013
(dollars in thousands)	Average Balance			Interest		Rate		Average Balance			Interest		Rate
ASSETS
Loans (1)(2)	$	3,650,050		$	37,444	4.11	%	$	3,419,393		$	36,459	4.28	%
Interest-bearing deposits with banks	88,064			62		0.28	%	186,265			132		0.28	%
Taxable investment securities (3)	428,618			2,129		1.99	%	365,799			1,866		2.04	%
Tax-exempt investment securities (2)	129,687			1,507		4.65	%	106,194			1,255		4.73	%
Federal Home Loan Bank and other restricted stock	12,752			124		3.89	%	12,420			10		0.31	%
Total Interest-earning Assets	4,309,171			41,266		3.84	%	4,090,071			39,722		3.89	%
Noninterest-earning assets:
Cash and due from banks	48,846							52,219
Premises and equipment, net	35,689							36,881
Other assets	336,985							358,555
Less allowance for loan losses	(49,075		)					(47,063		)
Total Assets	$	4,681,616						$	4,490,663
LIABILITIES AND SHAREHOLDERS’ EQUITY
Interest-bearing demand	$	311,719		$	20	0.03	%	$	303,461		$	18	0.02	%
Money market	327,666			125		0.15	%	327,733			112		0.14	%
Savings	1,035,691			403		0.16	%	1,001,258			452		0.18	%
Certificates of deposit	899,086			1,742		0.78	%	984,304			2,330		0.95	%
CDARS and brokered deposits	230,036			186		0.32	%	63,564			39		0.25	%
Total Interest-bearing deposits	2,804,198			2,476		0.35	%	2,680,320			2,951		0.44	%
Securities sold under repurchase agreements	30,718			2		0.01	%	67,461			22		0.13	%
Short-term borrowings	108,640			80		0.30	%	71,429			44		0.25	%
Long-term borrowings	20,873			156		3.01	%	23,196			176		3.05	%
Junior subordinated debt securities	45,619			303		2.66	%	82,817			764		3.70	%
Total Interest-bearing Liabilities	3,010,048			3,017		0.40	%	2,925,223			3,957		0.54	%
Noninterest-bearing liabilities:
Noninterest-bearing demand	1,028,997							946,862
Other liabilities	51,390							72,370
Shareholders’ equity	591,181							546,208
Total Liabilities and Shareholders’ Equity	$	4,681,616						$	4,490,663
Net Interest Income(2)(3)				$	38,249						$	35,765
Net Interest Margin(2) (3)						3.56	%						3.51	%

⁽¹⁾ Nonaccruing loans are included in the daily average loan amounts outstanding.

⁽²⁾ Tax-exempt income is on a FTE basis using the statutory federal corporate income tax rate of 35 percent for 2014 and 2013.

⁽³⁾ Taxable investment income is adjusted for the dividend-received deduction for equity securities.

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

	Six Months Ended June 30, 2014							Six Months Ended June 30, 2013
(dollars in thousands)	Average Balance			Interest		Rate		Average Balance			Interest		Rate
ASSETS
Loans (1) (2)	$	3,613,470		$	73,878	4.12	%	$	3,388,915		$	72,190	4.30	%
Interest-bearing deposits with banks	117,812			147		0.25	%	198,379			252		0.25	%
Taxable investment securities (3)	412,142			4,079		1.98	%	359,622			3,731		2.07	%
Tax-exempt investment securities (2)	125,591			2,936		4.68	%	108,310			2,536		4.68	%
Federal Home Loan Bank and other restricted stock	13,070			214		3.28	%	13,415			28		0.42	%
Total Interest-earning Assets	4,282,085			81,254		3.82	%	4,068,641			78,737		3.90	%
Noninterest-earning assets:
Cash and due from banks	48,463							52,116
Premises and equipment, net	35,662							37,316
Other assets	339,070							358,996
Less allowance for loan losses	(48,255		)					(47,527		)
Total Assets	$	4,657,025						$	4,469,542
LIABILITIES AND SHAREHOLDERS’ EQUITY
Interest-bearing demand	$	312,565		$	35	0.02	%	$	306,792		$	37	0.02	%
Money market	338,928			253		0.15	%	332,961			237		0.14	%
Savings	1,025,007			791		0.16	%	987,616			945		0.19	%
Certificates of deposit	904,869			3,565		0.79	%	998,041			4,878		0.99	%
CDARS and brokered deposits	210,426			342		0.33	%	47,480			56		0.24	%
Total Interest-bearing deposits	2,791,795			4,986		0.36	%	2,672,890			6,153		0.46	%
Securities sold under repurchase agreements	33,641			2		0.01	%	65,411			48		0.15	%
Short-term borrowings	118,156			178		0.30	%	66,298			78		0.24	%
Long-term borrowings	21,168			320		3.04	%	26,323			407		3.12	%
Junior subordinated debt securities	45,619			605		2.68	%	86,696			1,445		3.36	%
Total Interest-bearing Liabilities	3,010,379			6,091		0.41	%	2,917,618			8,131		0.56	%
Noninterest-bearing liabilities:
Noninterest-bearing demand	1,009,506							936,141
Other liabilities	52,116							72,450
Shareholders’ equity	585,024							543,333
Total Liabilities and Shareholders’ Equity	$	4,657,025						$	4,469,542
Net Interest Income (2) (3)				$	75,163						$	70,606
Net Interest Margin (2) (3)						3.54	%						3.50	%

⁽¹⁾ Nonaccruing loans are included in the daily average loan amounts outstanding.

⁽²⁾ Tax-exempt income is on a FTE basis using the statutory federal corporate income tax rate of 35 percent for 2014 and 2013.

⁽³⁾ Taxable investment income is adjusted for the dividend-received deduction for equity securities.

Net interest income on a FTE basis increased $2.5 million, or 6.9 percent, for the three months ended June 30, 2014 and $4.6 million, or 6.5 percent, for the six months ended June 30, 2014 compared to the same periods in 2013. The net interest margin on a FTE basis increased 5 basis points for the three months ended June 30, 2014 and 4 basis points for the six months ended June 30, 2014 compared to the same periods in 2013. The increase in net interest income is mainly due to interest earning asset growth.

47

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

Interest income on a FTE basis increased $1.5 million, or 3.9 percent, and $2.5 million, or 3.2 percent, to $41.3 million and $81.3 million for the three and six months ended June 30, 2014 compared to the same periods in 2013. The increase in interest income was mainly driven by the $219.1 million and $213.4 million increases in interest-earning assets for the three and six month periods ended June 30, 2014 compared to the same periods in 2013. The interest-earning asset balance increase is mainly attributable to loan growth. Average loan balances increased by $230.7 million and $224.6 million for the three and six months ended June 30, 2014 compared to the same periods in 2013 as a result of organic growth, primarily in our commercial loan portfolio. Due to the continued low interest rate environment our rate earned on loans decreased 17 basis points and 18 basis points for the three and six months ended June 30, 2014 when compared to the three and six months ended June 30, 2013. Average interest-bearing deposits with banks, which is primarily cash at the Federal Reserve, decreased $98.2 million for the three months and $80.6 million for the six months ended June 30, 2014 when compared to the same periods in 2013. Average investment securities, including Federal Home Loan Bank, or FHLB, and other restricted stock, increased $86.6 million for the three months and $69.5 million for the six months ended June 30, 2014 compared to the same periods in 2013. The deployment of excess cash at the Federal Reserve to higher yielding investment securities had a positive impact on the interest-earning asset rate. Overall, the FTE rate on total interest-earning assets decreased 5 basis points to 3.84 percent for the three months ended June 30, 2014 and decreased 8 basis points to 3.82 percent for the six months ended June 30, 2014 as compared to 3.89 percent and 3.90 percent for the same periods in 2013.

Interest expense decreased $0.9 million and $2.0 million to $3.0 million and $6.1 million for the three and six months ended June 30, 2014 compared to the same periods in 2013. The decrease in interest expense is a result of a shift in the mix of our interest-bearing liabilities from higher rate certificates of deposit, or CDs, and subordinated debt to lower cost deposits and borrowings. Total interest-bearing deposits increased $123.9 million and $118.9 million for the three months and six months ended June 30, 2014 compared to the same periods in 2013. Higher interest-bearing deposits are due to an increase of $166.5 million and $162.9 million in brokered deposits and an increase of $42.6 million and $49.1 million in interest-bearing demand, money market and savings balances offset by a decrease in CDs of $85.2 million and $93.2 million for the three and six month periods ended June 30, 2014 compared to the same periods in 2013. The cost of total interest-bearing deposits was 0.35 percent and 0.36 percent for the three and six month periods ended June 30, 2014, compared to 0.44 percent and 0.46 percent for the three and six month periods ended June 30, 2013. The decrease in the cost of interest-bearing deposits was mainly due to the maturity of higher rate CDs being replaced by lower rate deposits. Interest expense on average borrowings decreased $0.5 million and $0.9 million over the three and six month periods ended June 30, 2014 compared to the same periods in 2013. The decrease was primarily a result of the redemption of $45.0 million of subordinated debt during the second quarter of 2013. Overall, the cost of interest-bearing liabilities decreased 14 basis points and 15 basis points for the three months and six months ended June 30, 2014 compared to the same periods in 2013.

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

The following table sets forth for the periods indicated a summary of the changes in interest earned and interest paid resulting from changes in volume and changes in rates:

	Three Months Ended June 30, 2014 Compared to June 30,  2013									Six Months Ended June 30, 2014 Compared to June 30,  2013
(dollars in thousands)	Volume (4)			Rate (4)			Net			Volume			Rate			Net
Interest earned on:
Loans (1) (2)	$	2,460		$	(1,475	)	$	985		$	4,784		$	(3,096	)	$	1,688
Interest-bearing deposits with banks	(70		)	—			(70		)	(103		)	(2		)	(105		)
Taxable investment securities (3)	320			(57		)	263			544			(196		)	348
Tax-exempt investment securities (2)	277			(25		)	252			404			(4		)	400
Federal Home Loan Bank and other restricted stock	—			114			114			(1		)	187			186
Total Interest-earning Assets	2,987			(1,443		)	1,544			5,628			(3,111		)	2,517
Interest paid on:
Interest-bearing demand	1			1			2			—			(2		)	(2		)
Money market	—			13			13			4			12			16
Savings	16			(65		)	(49		)	36			(190		)	(154		)
Certificates of deposit	(202		)	(385		)	(587		)	(455		)	(857		)	(1,312		)
CDARS and brokered deposits	102			45			147			194			92			286
Securities sold under repurchase agreements	(12		)	(9		)	(21		)	(23		)	(23		)	(46		)
Short-term borrowings	23			13			36			60			40			100
Long-term borrowings	(18		)	(2		)	(20		)	(79		)	(9		)	(88		)
Junior subordinated debt securities	(343		)	(118		)	(461		)	(686		)	(154		)	(840		)
Total Interest-bearing Liabilities	(433		)	(507		)	(940		)	(949		)	(1,091		)	(2,040		)
Net Change in Net Interest Income	$	3,420		$	(936	)	$	2,484		$	6,577		$	(2,020	)	$	4,557

⁽¹⁾ Nonaccruing loans are included in the daily average loan amounts outstanding.

⁽²⁾ Tax-exempt income is on a FTE basis using the statutory federal corporate income tax rate of 35 percent for 2014 and 2013.

⁽³⁾ Taxable investment income is adjusted for the dividend-received deduction for equity securities.

⁽⁴⁾ Changes to rate/volume are allocated to both rate and volume on a proportionate dollar basis.

Provision for Loan Losses

The provision for loan losses is the adjustment to the allowance for loan losses, or ALL, after considering loan charge-offs and recoveries to bring the ALL to a level appropriate to absorb probable losses inherent in the loan portfolio. The provision for loan losses decreased $2.1 million from $1.0 million to ($1.1) million for the three months ended June 30, 2014 and decreased $4.1 million from $3.3 million to ($0.8) million for the six months ended June 30, 2014 compared to the same periods in 2013. The negative provision for loan losses was primarily due to net recoveries of $1.1 million and $1.2 million for the three and six months ended June 30, 2014. We continue to experience favorable asset quality trends with decreases in loan charge-offs, nonaccrual loans, special mention and substandard loans and the delinquency status of our loan portfolio. Net loan charge-offs decreased $2.0 million to a net recovery of $1.1 million for the three months ended June 30, 2014 compared to a net charge-off of $0.9 million for the three months ended June 30, 2013 and decreased $4.9 million to a net recovery of $1.2 million for the six months ended June 30, 2014 compared to a net charge-off of $3.7 million for the six months ended June 30, 2013. Nonaccrual loans decreased 61 percent to $14.9 million at June 30, 2014 compared to $37.9 million at June 30, 2013. Total special mention and substandard commercial loans have decreased $98.5 million, or 41 percent, over the last twelve months to $143.1 million at June 30, 2014. The ALL was 1.25 percent of total loans at June 30, 2014 compared to 1.34 percent at June 30, 2013. Refer to “Allowance for Loan Losses” in the MD&A of this report for additional information.

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Noninterest Income

	Three Months Ended June 30,									Six Months Ended June 30,
(dollars in thousands)	2014		2013		$ Change			% Change		2014		2013		$ Change			% Change
Securities gains, net	$	40	$	—	$	40		NM		$	41	$	2	$	39		NM
Wealth management fees	2,837		2,820		17			0.6		5,792		5,396		396			7.3
Debit and credit card fees	2,724		3,150		(426		)	(13.5	)	5,226		5,601		(375		)	(6.7	)
Service charges on deposit accounts	2,574		2,495		79			3.2		5,083		4,943		140			2.8
Insurance fees	1,425		1,643		(218		)	(13.3	)	3,102		3,418		(316		)	(9.2	)
Mortgage banking	264		911		(647		)	(71.0	)	396		1,393		(997		)	(71.6	)
Gain on sale of merchant card servicing business	—		—		—			—		—		3,093		(3,093		)	(100.0	)
Other	1,907		1,848		59			3.2		3,547		3,827		(280		)	(7.3	)
Total Noninterest Income	$	11,771	$	12,867	$	(1,096	)	(8.5	)%	$	23,187	$	27,673	$	(4,486	)	(16.2	)%

NM- percentage not meaningful

Noninterest income decreased $1.1 million, or 8.5 percent, and $4.5 million, or 16.2 percent, to $11.8 million and $23.2 million for the three and six month periods ended June 30, 2014 compared to the same periods in 2013. The decreases related to declines in fees from mortgage banking, debit and credit cards and insurance for both periods. Additional decreases in the six month period ended June 30, 2014 related to the sale of our merchant card servicing business and other noninterest income offset by an increase in wealth management fees.

During the first quarter of 2013, we sold our merchant card servicing business for $4.8 million and paid deconversion and termination fees of $1.7 million to the merchant processor resulting in a net gain of $3.1 million. In conjunction with the sale of the merchant card servicing business, we entered into a marketing and sales alliance agreement with the purchaser, providing transition fees, royalties and referral revenue. Income from the marketing and sales alliance agreement is included in debit and credit card fees. The decrease in debit and credit card fees for both the three and six month periods ended June 30, 2014 primarily relates to transition fees that we received during the first five months after the sale of the merchant card servicing business that did not recur during 2014, combined with the timing of referral revenue. Mortgage banking income decreased $0.6 million and $1.0 million for the three and six month periods ended June 30, 2014 compared to the same periods in 2013. The decrease in mortgage banking income relates to the increase in mortgage rates that occurred in the second quarter of 2013, resulting in a decrease in the volume of loans originated for sale in the secondary market and less favorable pricing on loan sales. During the six months ended June 30, 2014, we sold 65 percent fewer mortgages with $13.1 million in loan sales compared to $37.7 million during the same period in 2013. Insurance fees decreased $0.2 million and $0.3 million for the three and six month periods ended June 30, 2014 compared to the same periods in 2013 due to increased competition.

The decrease in other noninterest income of $0.3 million for the six month period ended June 30, 2014, as compared to the same period in 2013, was primarily due to a decrease in interest rate swap fees from our commercial customers. Wealth management fees increased $0.4 million for the six month period ended June 30, 2014, as compared to the same period in 2013, due to higher assets under management, new business development efforts and fee increases.

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Noninterest Expense

	Three Months Ended June 30,									Six Months Ended June 30,
(dollars in thousands)	2014		2013		$ Change			% Change		2014		2013		$ Change			% Change
Salaries and employee benefits (1)	$	15,772	$	14,725	$	1,047		7.1	%	$	31,148	$	30,737	$	411		1.3
Data processing (1)	2,219		2,110		109			5.2		4,314		4,043		$	271		6.7
Net occupancy (1)	1,984		1,958		26			1.3		4,214		4,122		$	92		2.2
Furniture and equipment	1,277		1,230		47			3.8		2,548		2,538		$	10		0.4
Marketing	960		793		167			21.1		1,578		1,482		$	96		6.5
Other Taxes	893		915		(22		)	(2.4	)	1,524		1,914		$	(390	)	(20.4	)
Professional services and legal (1)	875		1,171		(296		)	(25.3	)	1,538		2,143		$	(605	)	(28.2	)
FDIC insurance	579		707		(128		)	(18.1	)	1,210		1,483		$	(273	)	(18.4	)
Other noninterest expense(1)	5,606		4,749		857			18.0		11,005		10,702		$	303		2.8
Merger related expense	—		28		(28		)	(100.0	)	—		838		$	(838	)	(100.0	)
Total Noninterest Expense	$	30,165	$	28,386	$	1,779		6.3	%	$	59,079	$	60,002	$	(923	)	(1.5	)

⁽¹⁾ Excludes one-time merger related expense for 2013.

Noninterest expense increased $1.8 million, or 6.3 percent, and decreased $0.9 million, or 1.5 percent, to $30.2 million and $59.1 million for the three and six month periods ended June 30, 2014 compared to the same periods in 2013. Increases in salaries and employee benefits expenses and other noninterest expenses were offset by decreases in professional services and legal for both periods. Additional decreases in merger related expenses, other taxes and FDIC insurance contributed to the decrease for the six month period ended June 30, 2014 as compared to the same period in 2013.

The $0.8 million of merger related expense recognized in the six months ended June 30, 2013 related primarily to the data processing system conversion of Gateway Bank. Although the Gateway Bank acquisition occurred in August 2012, the merger with S&T Bank and the system conversion was completed on February 8, 2013.

Salaries and employee benefits expenses increased $1.0 million and $0.4 million in the three and six month periods ended June 30, 2014, compared to the same periods in 2013, primarily due to an increase in incentive expense offset by a decrease in pension expense. Incentive expense increased $0.8 million and $1.3 million for the three and six months ended June 30, 2014, compared to the same periods in 2013, due to strong performance in the first half of 2014. Offsetting this increase to incentives was a reduction in our pension expense for the three and six months ended June 30, 2014, compared to the same periods in 2013, of $0.5 million and $1.0 million due to a decrease in our pension liability resulting from a change in actuarial assumptions. Other noninterest expense increased $0.9 million for the six months ended June 30, 2014 and was relatively unchanged for the three months ended June 30, 2014, compared to the same periods in 2013. The $0.9 million increase during the current period primarily relates to an increase in the provision for unfunded loan commitments. Data processing increased $0.1 million and $0.3 million for the three and six month periods ended June 30, 2014 primarily due to the implementation of software that strengthens the authentication of our customers that use our online banking product

Professional services and legal expense decreased $0.3 million and $0.6 million for the three and six months ended June 30, 2014, compared to the same periods in 2013, primarily due to additional external accounting and consulting charges that were incurred in 2013. The decrease of $0.4 million for the six months ended June 30, 2014 in other taxes primarily relates to legislative changes that have resulted in a reduction in Pennsylvania shares tax expense. FDIC insurance charges are based in part on our financial ratios which have improved, resulting in a decrease of $0.1 million and $0.3 million for the three and six month periods ended June 30, 2014, compared to the same periods in 2013.

Provision for Income Taxes

The provision for income taxes increased $0.9 million to $4.9 million for the three month period and increased $2.5 million to $8.6 million for the six month period ended June 30, 2014 compared to a provision of $4.0 million and $6.2 million for the same periods in 2013. The increases to the provision for income taxes for the three and six month periods ended June 30, 2014 were primarily due to increases of $1.5 million for the three month period and $4.8 million for the six month period in

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pre-tax income and an increase in the expected full year tax rate. The effective tax rate for the six months ended June 30, 2014 increased to 23.1 percent compared to 18.9 percent for the same period in 2013. The increase in our effective tax rate was primarily due to increases in pre-tax income.

Financial Condition

June 30, 2014

Total assets increased by 5.6 percent to $4.8 billion at June 30, 2014 compared to $4.5 billion at December 31, 2013. Loan growth was strong, resulting in an increase to total portfolio loans of $158.9 million, or 4.5 percent, compared to December 31, 2013. Our commercial loan portfolio grew by $153.0 million, or 5.9 percent, to $2.7 billion and our consumer loan portfolio grew by $5.9 million, or 0.6 percent, to $978.2 million at June 30, 2014. Securities increased $79.1 million, or 15.5 percent, compared to December 31, 2013. Our deposit base increased $192.9 million, or 5.3 percent, with total deposits of $3.9 billion at June 30, 2014 compared to $3.7 billion at December 31, 2013. Demand deposits increased $92.3 million, or 7.1 percent, compared to December 31, 2013. Our Certificate of Deposit Account Registry Services, or CDARS, One Way Buy, or OWB, and brokered CDs increased by $83.0 million during the six month period ended June 30, 2014 compared to December 31, 2013. Borrowings increased by $35.2 million to $276.5 million at June 30, 2014 compared to $241.3 million at December 31, 2013. The short-term borrowing increase of $45.0 million was utilized as a source of funds to support our asset growth during the first half of 2014.Total shareholder’s equity increased by $25.9 million, or 4.5 percent, during the six months ended June 30, 2014 compared to December 31, 2013. The increase was primarily due to net income of $28.8 million and an increase to other comprehensive income of $6.7 million primarily resulting from higher market values on our available-for-sale securities offset by $9.8 million in dividends.

Securities Activity

(dollars in thousands)	June 30, 2014		December 31, 2013		$ Change
Obligations of U.S. government corporations and agencies	$	270,248	$	234,751	$	35,497
Collateralized mortgage obligations of U.S. government corporations and agencies	94,604		63,774		30,830
Residential mortgage-backed securities of U.S. government corporations and agencies	46,389		48,669		(2,280		)
Commercial mortgage-backed securities of U.S. government corporations and agencies	39,920		39,052		868
Obligations of states and political subdivisions	128,313		114,264		14,049
Debt Securities Available-for-Sale	579,474		500,510		78,964
Marketable equity securities	9,014		8,915		99
Total Securities Available-for-Sale	$	588,488	$	509,425	$	79,063

We invest in various securities in order to provide a source of liquidity, to satisfy various pledging requirements, increase net interest income and as a tool of the ALCO to reposition the balance sheet for interest rate risk purposes. Securities are subject to market risk that could negatively affect the level of liquidity available to us. Security purchases are subject to investment policies approved annually by our Board of Directors and administered through ALCO and our treasury function. The securities portfolio increased $79.1 million, or 15.5 percent, from December 31, 2013. The increase is primarily due to the investment of cash into higher yielding assets.

On a quarterly basis, management evaluates the securities portfolio for other than temporary impairment, or OTTI. The bond portfolio had a net unrealized gain of $7.4 million at June 30, 2014 compared to a net unrealized loss of $2.3 million at December 31, 2013. Net unrealized gains at June 30, 2014 included $9.7 million of unrealized gains offset by $2.3 million of unrealized losses. Net unrealized losses at December 31, 2013 included unrealized gains of $5.5 million offset by $7.8 million of unrealized losses. The changes in unrealized gains and losses during the six months ended June 30, 2014 was a result of the changing interest rate environment during the period and is not related to the underlying credit quality of the bond portfolio. All debt securities are determined to be investment grade and are paying principal and interest according to the contractual terms of the security. There were no unrealized losses on marketable equity securities as of June 30, 2014. During the three and six months ended June 30, 2014, no OTTI was recorded. We do not intend to sell and it is not more likely than not that we will be required to sell any of the securities in an unrealized loss position before recovery of their amortized cost.

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Loan Composition

	June 30, 2014				December 31, 2013
(dollars in thousands)	Amount		% of Loans		Amount		% of Loans
Commercial
Commercial real estate	$	1,636,383	43.9	%	$	1,607,756	45.1	%
Commercial and industrial	922,191		24.8	%	842,449		23.6	%
Construction	188,311		5.1	%	143,675		4.0	%
Total Commercial Loans	2,746,885		73.7	%	2,593,880		72.7	%
Consumer
Residential mortgage	492,589		13.2	%	487,092		13.7	%
Home equity	416,226		11.2	%	414,195		11.6	%
Installment and other consumer	65,838		1.8	%	67,883		1.9	%
Construction	3,541		0.1	%	3,149		0.1	%
Total Consumer Loans	978,194		26.3	%	972,319		27.3	%
Total Portfolio Loans	3,725,079		100.0	%	3,566,199		100.0	%
Loans Held for Sale	3,102				2,136
Total Loans	$	3,728,181			$	3,568,335

Our loan portfolio represents the most significant source of interest income for us. The risk that borrowers will be unable to pay such obligations is inherent in the loan portfolio. Conditions such as the overall economic climate can significantly impact a borrower’s ability to pay. Total portfolio loans increased $158.9 million, or 4.5 percent, since December 31, 2013 to $3.7 billion at June 30, 2014 primarily due to organic loan growth in our commercial loan portfolios. The increase in loans can be attributed to the execution of our strategic initiative to grow our loan portfolio by adding seasoned lenders to our staff and our expansion through two LPO's in Ohio. Our expansion into new markets continued in the second quarter of 2014 with the opening of a branch in State College, Pennsylvania on June 18, 2014.

Total commercial loans have increased $153.0 million, or 5.9 percent, from December 31, 2013 with growth in all portfolios. C&I loans increased $79.7 million, or 9.5 percent, due to new loan originations and increased line utilization. CRE loans increased $28.6 million, or 1.8 percent, due to improved loan demand. Commercial construction loans increased $44.6 million, or 31.1 percent, due to an increase in activity and seasonality.

Residential mortgages increased $5.5 million, or 1.1 percent, from December 31, 2013 to June 30, 2014. Residential mortgage lending continues to be a strategic focus through a centralized mortgage origination department, ongoing product redesign, secondary market activities and the utilization of commission compensated originators. Management believes that continued adherence to our conservative mortgage lending policies for portfolio loans will be as important in a growing economy as it was during the downturn in recent years. At the end of the second quarter of 2014, we returned to selling all of our mortgage loan production priced for sale into the secondary market. Previously, we had been only selling 30 year mortgages. The rationale for these sales is to mitigate interest-rate risk associated with holding lower rate, long-term residential mortgages in the loan portfolio, generate fee revenue from sales and servicing and maintain the primary customer relationship. During the six months ended June 30, 2014, we sold 65 percent fewer mortgages with $12.5 million in loan sales compared to $35.6 million during the same period in 2013. We have experienced a decrease in the volume of loan sales from the prior year due to an increase in interest rates in mid-2013 which caused a significant decline in mortgage refinancings. As of June 30, 2014, we serviced $318.9 million of secondary market mortgage loans sold to Fannie Mae.

Allowance for Loan Losses

We maintain an ALL at a level determined to be adequate to absorb estimated probable credit losses inherent within the loan portfolio as of the balance sheet date. Determination of an adequate ALL is subjective, as it requires estimations of the occurrence of future events, as well as the timing of such events, and it may be subject to significant changes from period to period. The methodology for determining the ALL has two main components: 1) evaluation and impairment tests of individual loans, and 2) evaluation of certain groups of homogeneous loans with similar risk characteristics.

An inherent risk to the loan portfolio as a whole is the condition of the local economy. In addition, each loan segment carries with it risks specific to the segment. The following is a discussion of the key risks by portfolio segment that management assesses in preparing the ALL.

CRE loans are secured by commercial purpose real estate, including both owner occupied properties and investment properties for various purposes such as hotels, strip malls and apartments. Individual project cash flows, as well as global cash

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flows, are generally the sources of repayment for these loans. Besides cash flow risks, CRE loans have collateral risk and risks based upon the business prospects of the lessee, if the project is not owner occupied.

C&I loans are made to operating companies or manufacturers for the purpose of production, operating capacity, accounts receivable, inventory or equipment financing. Collateral for these types of loans often do not have sufficient value in a distressed or liquidation scenario to satisfy the outstanding debt. Cash flow from the operations of the company is the primary source of repayment for these loans and the cash flow depends not only on the economy as a whole, but also on the health of the company’s industry.

Commercial construction loans are made to finance construction of buildings or other structures, as well as to finance the acquisition and development of raw land for various purposes. During the construction phase, a number of factors can result in delays and cost overruns. While the risk is generally confined to the construction and absorption periods, if there are problems, the project may not be completed, and as such, may not provide sufficient cash flow on its own to service the debt or the value of the property securing the loan may not have sufficient value in a liquidation to cover the outstanding principal. There are also various risks depending on the type of project and the experience and resources of the developer.

Consumer real estate loans are secured by 1-4 family residences, including purchase money mortgages, first and second lien home equity loans and home equity lines of credit. The primary source of repayment for these loans is the income and assets of the borrower. The unemployment rate, as well as the state of the local housing market, had a significant impact on the risk determination since low demand and/or declining home values can limit the ability of borrowers to sell a property and satisfy the debt.

Other consumer loans are made to individuals and may be secured by assets other than 1-4 family residences, or may be unsecured. This class of loans includes auto loans, unsecured lines and credit cards. The primary source of repayment for these loans is the income and assets of the borrower so the local unemployment rate is an important indicator of risk. The value of the collateral, if there is any, is less likely to be a source of repayment due to less certain collateral values.

At June 30, 2014, approximately 83 percent of the ALL was related to our commercial loan portfolio, while commercial loans comprised 74 percent of our loan portfolio. We believe that the inherent losses in the commercial portfolio are higher than in the consumer portfolio. Our historical losses in the commercial loan portfolio were higher than in the consumer loan portfolio in the last economic downturn.

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The following tables summarize the ALL and recorded investments in loans by category for the dates presented:

	June 30, 2014
	Allowance for Loan Losses						Portfolio Loans
(dollars in thousands)	Individually Evaluated for Impairment		Collectively Evaluated for Impairment		Total		Individually Evaluated for Impairment		Collectively Evaluated for Impairment		Total
Commercial real estate	$	—	$	20,733	$	20,733	$	21,228	$	1,615,155	$	1,636,383
Commercial and industrial	—		13,004		13,004		9,545		912,646		922,191
Commercial construction	—		4,759		4,759		8,179		180,132		188,311
Consumer real estate	47		6,658		6,705		7,129		905,227		912,356
Other consumer	11		1,368		1,379		128		65,710		65,838
Total	$	58	$	46,522	$	46,580	$	46,209	$	3,678,870	$	3,725,079

	December 31, 2013
	Allowance for Loan Losses						Portfolio Loans
(dollars in thousands)	Individually Evaluated for Impairment		Collectively Evaluated for Impairment		Total		Individually Evaluated for Impairment		Collectively Evaluated for Impairment		Total
Commercial real estate	$	—	$	18,921	$	18,921	$	26,968	$	1,580,788	$	1,607,756
Commercial and industrial	—		14,433		14,433		9,580		832,869		842,449
Commercial construction	25		5,349		5,374		8,072		135,603		143,675
Consumer real estate	53		6,309		6,362		8,079		896,357		904,436
Other consumer	19		1,146		1,165		157		67,726		67,883
Total	$	97	$	46,158	$	46,255	$	52,856	$	3,513,343	$	3,566,199

	June 30, 2014			December 31, 2013
Ratio of net charge-offs to average loans outstanding	(0.03	)%	*	0.25	%
Allowance for loan losses as a percentage of total loans	1.25	%		1.30	%
Allowance for loan losses to nonperforming loans	312	%		206	%

^* Annualized

The ALL was $46.6 million, or 1.25 percent, of total portfolio loans at June 30, 2014 compared to $46.3 million, or 1.30 percent, of total portfolio loans at December 31, 2013. Overall, the total ALL and the composition of the ALL remained relatively unchanged from December 31, 2013. Impaired loans decreased $6.6 million from December 31, 2013, primarily as a result of loan pay downs. New impaired loan formation has been low during 2014 at only $2.8 million. The reserve for loans collectively evaluated for impairment did not change significantly at June 30, 2014 compared to December 31, 2013.

Our asset quality continued to improve during the six months ended June 30, 2014 with net recoveries, decreases in nonperforming loans and decreases in special mention and substandard loans. We had gross loan charge-offs of $4.7 million offset by loan recoveries of $5.9 million resulting in net recoveries of $1.2 million for the six months ended June 30, 2014. Included in the $5.9 million of recoveries was a $2.5 million recovery for one loan in our C&I loan portfolio. Nonperforming loans decreased $7.5 million, or 33 percent, to $14.9 million at June 30, 2014 compared to $22.5 million at December 31, 2013. Commercial special mention and substandard loans decreased by $19.9 million, or 12 percent, to $143.1 million at June 30, 2014 from $163.0 million at December 31, 2013.

During the three months ended June 30, 2014, we sold a $3.5 million package of smaller commercial loans,

$3.2 million of which were on nonaccrual status, resulting in a charge-off of $1.3 million. We also sold two C&I loans totaling $4.8 million which resulted in a charge-off of $1.5 million. The $4.8 million of C&I loans were moved to nonaccrual status during the three months ended June 30, 2014 as a result of the loan sale agreement. We received approximately $2.0 million of the proceeds for the loans prior to June 30, 2014 and the remaining $1.3 million was classified as held-for-sale at June 30, 2014. Subsequent to June 30, 2014, the remaining $1.3 million was fully collected.

We determine loans to be impaired when based upon current information and events, it is probable that we will be unable to collect all principal and interest payments due according to the original contractual terms of the loan agreement. Our methodology for evaluating whether a loan is impaired includes risk-rating credits on an individual basis and consideration of the borrower’s overall financial condition, payment history and available cash resources. In measuring impairment, we

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primarily look to the value of the collateral, but may use discounted cash flows or other market data. We may consider the existence of guarantees and the financial strength of the guarantors involved. Guarantees may be considered as a source of repayment; however, absent a verifiable payment capacity, a guarantee alone would not be sufficient to avoid classifying the loan as impaired.

Troubled debt restructurings, or TDRs, whether on accrual or nonaccrual status, are also classified as impaired loans. TDRs are loans where we, for economic or legal reasons related to a borrower’s financial difficulties, grant a concession to the borrower that we would not otherwise grant. These modified terms generally include extensions of maturity dates at a stated interest rate lower than the current market rate for a new loan with similar risk characteristics, reductions in contractual interest rates or principal deferment. While unusual there may be instances of principal forgiveness. Generally these concessions are fora period of at least six months. Additionally, we classify loans where the debt obligation has been discharged through a Chapter 7 Bankruptcy and not reaffirmed by the borrower as TDRs.

TDRs can be returned to accruing status if the following criteria are met: 1) the ultimate collectability of all contractual amounts due, according to the restructured agreement, is not in doubt and 2) there is a period of a minimum of six months of satisfactory payment performance by the borrower either immediately before or after the restructuring. All TDRs are considered to be impaired loans and will be reported as impaired loans for their remaining lives, unless the restructuring agreement specifies an interest rate equal to or greater than the rate that would be accepted at the time of the restructuring for a new loan with comparable risk and we fully expected that the remaining principal and interest will be collected according to the restructured agreement. All impaired loans are reported as nonaccrual loans unless the loan is a TDR that has met the requirements noted above to be returned to accruing status.

As an example, consider a substandard commercial construction loan that is currently 90 days past due where the loan is restructured to extend the maturity date for a period longer than would be considered an insignificant period of time. The post-modification interest rate is not increased to correspond with the current credit risk of the borrower and all other terms remain the same according to the original loan agreement. This loan will be considered a TDR as the borrower is experiencing financial difficulty and a concession has been granted. The loan will be reported as nonaccrual and as an impaired loan and a TDR. In addition, the loan could be charged down to the fair value of the collateral if a confirmed loss exists. If the loan subsequently performs, by means of making on-time principal and interest payments according to the newly restructured terms for a period of six months, and it is expected that all remaining principal and interest will be collected according to the terms of the restructured agreement, the loan will be returned to accrual status and reported as an accruing TDR. The loan will remain an impaired loan for the remaining life of the loan since the interest rate was not adjusted to be equal to or greater than the rate that would be accepted at the time of the restructuring for a new loan with comparable risk.

As of June 30, 2014, we had $42.4 million in total TDRs, including $37.1 million that were accruing and $5.3 million that were in nonaccrual. For the six months ended June 30, 2014, we had $2.0 million of new TDRs, the most significant of which was a Commercial Construction TDR for $1.0 million which had a maturity date extension and 17 loans totaling $0.9 million related to bankruptcy filings that were not reaffirmed resulting in discharged debt. During the six months ended June 30, 2014, we returned five TDRs to accrual status for $1.5 million, including one loan for $1.3 million upon a detailed credit evaluation supporting that we fully expect collection of the contractual amounts due and that the borrower had six months of satisfactory payment performance.

The charge-off policy for commercial loans requires that loans and other obligations that are not collectible be promptly charged-off when the loss becomes probable, regardless of the delinquency status of the loan. We may elect to recognize a partial charge-off when management has determined that the value of collateral is less than the remaining investment in the loan. A loan or obligation does not need to be charged-off, regardless of delinquency status, if (i) management has determined there exists sufficient collateral to protect the remaining loan balance and (ii) there exists a strategy to liquidate the collateral. Management may also consider a number of other factors to determine when a charge-off is appropriate. These factors may include, but are not limited to:

• The status of a bankruptcy proceeding

• The value of collateral and probability of successful liquidation; and/or

• The status of adverse proceedings or litigation that may result in collection

Consumer unsecured loans and secured loans are evaluated for charge-off after the loan becomes 90 days past due. Unsecured loans are fully charged-off and secured loans are charged-off to the estimated fair value of the collateral less the cost to sell.

Our allowance for lending-related commitments is computed using a methodology similar to that used to determine theALL. Amounts are added to the allowance for lending-related commitments by a charge to current earnings through noninterest expense. The balance in the allowance for lending-related commitments was relatively unchanged at approximately $3.1 million at June 30, 2014 as compared to $2.9 million at December 31, 2013. The allowance for lending-related commitments is included in other liabilities in the Consolidated Balance Sheets.

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

Nonperforming assets consist of nonaccrual loans, nonaccrual TDRs and OREO. The following summarizes nonperforming assets for the dates presented:

(dollars in thousands)	June 30, 2014			December 31, 2013			$ Change
Nonaccrual Loans
Commercial real estate	$	4,227		$	6,852		$	(2,625	)
Commercial and industrial	2,667			1,412			1,255
Commercial construction	—			34			(34		)
Residential mortgage	1,473			1,982			(509		)
Home equity	1,306			2,073			(767		)
Installment and other consumer	25			34			(9		)
Consumer construction	—			—			—
Total Nonaccrual Loans	9,698			12,387			(2,689		)
Nonaccrual Troubled Debt Restructurings
Commercial real estate	1,431			3,898			(2,467		)
Commercial and industrial	1,170			1,884			(714		)
Commercial construction	1,869			2,708			(839		)
Residential mortgage	645			1,356			(711		)
Home equity	125			218			(93		)
Installment and other consumer	1			3			(2		)
Total Nonaccrual Troubled Debt Restructurings	5,241			10,067			(4,826		)
Total Nonaccrual Loans	14,939			22,454			(7,515		)
OREO	431			410			21
Total Nonperforming Assets	$	15,370		$	22,864		$	(7,494	)
Asset Quality Ratios:
Nonperforming loans as a percent of total loans	0.40		%	0.63		%
Nonperforming assets as a percent of total loans plus OREO	0.41		%	0.64		%

Our policy is to place loans in all categories in nonaccrual status when collection of interest or principal is doubtful, or generally when interest or principal payments are 90 days or more past due. There were no loans 90 days or more past due and still accruing at June 30, 2014 or December 31, 2013.

Nonperforming assets decreased $7.5 million, or 33 percent to $15.4 million at June 30, 2014 compared to $22.9 million at December 31, 2013. The decline in nonperforming assets is primarily the result of the sale of $3.2 million of nonaccrual loans, $4.8 million in nonperforming loan pay downs, $1.2 million of loan charge-offs and $2.9 million of loans returning to accrual status. New nonperforming loan formation was $4.8 million for the six months ended June 30, 2014. The new formation primarily consists of smaller loans of less than $0.5 million.

Deposits

(dollars in thousands)	June 30, 2014		December 31, 2013		$ Change
Noninterest-bearing demand	$	1,089,999	$	992,779	$	97,220
Interest-bearing demand	307,897		312,790		(4,893		)
Money market	301,719		281,403		20,316
Savings	1,024,050		994,805		29,245
Certificates of deposit	890,794		922,753		(31,959		)
CDARs OWB and brokered CDs	250,787		167,778		83,009
Total Deposits	$	3,865,246	$	3,672,308	$	192,938

Deposits are our primary source of funds. We believe that our deposit base is stable and that we have the ability to attract new deposits, mitigating a funding dependency on other more volatile sources. Total deposits increased $192.9 million at June 30, 2014 compared to December 31, 2013.

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

Overall, our customer deposits increased by $109.9 million and our CDARS OWB and brokered CDs increased by $83.0 million from December 31, 2013. The CDARS OWB and brokered CDs increased as a result of utilizing this type of funding source to support the strong asset growth during the first half of 2014.

CDs of $100,000 and over, not including CDARs, decreased to 8.6 percent of total deposits at June 30, 2014 compared to 9.3 percent of total deposits at December 31, 2013. The percent decrease is a result of total deposit growth with no material change in total CDs of $100,000 and over. CDs of $100,000 and over primarily represent deposit relationships with local customers in our market area.

Borrowings

(dollars in thousands)	June 30, 2014		December 31, 2013		$ Change
Securities sold under repurchase agreements, retail	$	25,269	$	33,847	$	(8,578	)
Short-term borrowings	185,000		140,000		45,000
Long-term borrowings	20,636		21,810		(1,174		)
Junior subordinated debt securities	45,619		45,619		—
Total Borrowings	$	276,524	$	241,276	$	35,248

Borrowings are an additional source of funding for us. Total borrowings increased by $35.2 million from December 31, 2013. The short-term borrowing increase of $45.0 million was utilized as a source of funds to support our asset growth activity during the first half of 2014.

Information pertaining to short-term borrowings is summarized in the tables below for the six and twelve month periods ended June 30, 2014 and December 31, 2013.

	Securities Sold Under Repurchase Agreements
(dollars in thousands)	June 30, 2014			December 31, 2013
Balance at the period end	$	25,269		$	33,847
Average balance during the period	33,641			54,057
Average interest rate during the period	0.01		%	0.12		%
Maximum month-end balance during the period	$	40,983		$	83,766
Average interest rate at the period end	0.01		%	0.01		%
	Short-Term Borrowings
(dollars in thousands)	June 30, 2014			December 31, 2013
Balance at the period end	$	185,000		$	140,000
Average balance during the period	118,156			101,973
Average interest rate during the period	0.30		%	0.27		%
Maximum month-end balance during the period	$	185,000		$	175,000
Average interest rate at the period end	0.28		%	0.30		%

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

Information pertaining to long-term borrowings is summarized in the tables below for the six and twelve month periods ended June 30, 2014 and December 31, 2013.

	Long-Term Borrowings
(dollars in thousands)	June 30, 2014			December 31, 2013
Balance at the period end	$	20,636		$	21,810
Average balance during the period	21,168			24,312
Average interest rate during the period	3.04		%	3.07		%
Maximum month-end balance during the period	$	21,616		$	28,913
Average interest rate at the period end	2.98		%	3.01		%
	Junior Subordinated Debt Securities
(dollars in thousands)	June 30, 2014			December 31, 2013
Balance at the period end	$	45,619		$	45,619
Average balance during the period	45,619			65,989
Average interest rate during the period	2.68		%	3.14		%
Maximum month-end balance during the period	$	45,619		$	90,619
Average interest rate at the period end	2.69		%	2.70		%

Liquidity and Capital Resources

Liquidity is defined as a financial institution’s ability to meet its cash and collateral obligations at a reasonable cost. This includes the ability to satisfy the financial needs of depositors who want to withdraw funds or of borrowers needing to access funds to meet their credit needs. In order to manage liquidity risk our Board of Directors has delegated authority to the ALCO for formulation, implementation and oversight of liquidity risk management for S&T and S&T Bank. ALCO’s goal is to maintain adequate levels of liquidity at a reasonable cost to meet funding needs in both a normal operating environment and for potential liquidity stress events. ALCO monitors and manages liquidity through various ratios, reviewing cash flow projections, performing stress tests and by having a detailed contingency funding plan. ALCO policy guidelines are in place that define graduated risk tolerances. If our liquidity position moves to a level that has been defined as high risk, specific actions are required, such as increased monitoring or the development of an action plan to reduce the risk position.

Our primary funding and liquidity source is a stable customer deposit base. We believe S&T Bank has the ability to retain existing and attract new deposits, mitigating any funding dependency on other more volatile sources. Refer to the Deposits Section of this Part I, Item 2, MD&A, for additional discussion on deposits. Although deposits are the primary source of funds, we have identified various funding sources that can be used as part of our normal funding program when either a structure or cost efficiency has been identified. These funding sources include borrowing availability at the FHLB, Federal Funds lines with other financial institutions and access to the brokered certificates of deposit market including CDARS.

An important component of S&T’s ability to effectively respond to potential liquidity stress events is maintaining a cushion of highly liquid assets. Highly liquid assets are those that can be converted to cash quickly, with little or no loss in value, to meet financial obligations. ALCO policy guidelines define a ratio of highly liquid assets to total assets by graduated risk tolerance levels of minimal, moderate and high. At June 30, 2014 we had $358.1 million in highly liquid assets, which consisted of $54.6 million in interest-bearing deposits with banks, $300.4 million in unpledged securities and $3.1 million in loans held for sale. The highly liquid assets to total assets resulted in an asset liquidity ratio of 7.5 percent at June 30, 2014. Also, at June 30, 2014, we had a remaining borrowing availability of $1.4 billion with the FHLB of Pittsburgh. In addition, we have access to $60.0 million in Federal Funds lines with other financial institutions. Refer to Part I, Note 8 Borrowings and Part I, Item 2, MD&A, for more details on FHLB borrowings. S&T Bank is considered to be a well capitalized bank according to regulatory guidance, therefore access to brokered CDs is not restricted.

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

The following summarizes capital amounts and ratios for S&T Bancorp, Inc. and S&T Bank for the dates presented:

(dollars in thousands)	Adequately Capitalized (1)		Well- Capitalized(2)		June 30, 2014				December 31, 2013
					Amount		Ratio		Amount		Ratio
S&T Bancorp, Inc.
Tier 1 leverage	4.00	%	5.00	%	$	445,813	9.91	%	$	426,234	9.75	%
Tier 1 capital to risk-weighted assets	4.00	%	6.00	%	445,813		12.30	%	426,234		12.37	%
Total capital to risk-weighted assets	8.00	%	10.00	%	516,821		14.26	%	494,986		14.36	%
S&T Bank
Tier 1 leverage	4.00	%	5.00	%	$	407,243	9.09	%	$	389,584	8.95	%
Tier 1 capital to risk-weighted assets	4.00	%	6.00	%	407,243		11.29	%	389,584		11.36	%
Total capital to risk-weighted assets	8.00	%	10.00	%	477,399		13.24	%	457,540		13.35	%

⁽¹⁾ For an institution to qualify as “adequately capitalized” under regulatory guidelines, Tier 1 leverage, Tier 1 risk-based capital and total risk-based capital ratios must be at least 4 percent, 4 percent and 8 percent. At June 30, 2014, we exceeded those requirements.

⁽²⁾ For an institution to qualify as “well capitalized” under regulatory guidelines, Tier 1 leverage, Tier 1 risk-based capital and total risk-based capital ratios must be at least 5 percent, 6 percent and 10 percent. At June 30, 2014, we exceeded those requirements.

In October 2012, we filed a shelf registration statement on Form S-3 under the Securities Act of 1933 as amended, with the SEC for the issuance of up to $300 million of a variety of securities including debt and capital securities, preferred and common stock and warrants. We may use the proceeds from the sale of securities for general corporate purposes, which could include investments at the holding company level, investing in, or extending credit to subsidiaries, possible acquisitions and stock repurchases. As of June 30, 2014 we had not issued any securities pursuant to the shelf registration statement.

Item 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Market risk is defined as the degree to which changes in interest rates, foreign exchange rates, commodity prices or equity prices can adversely affect a financial institution’s earnings or capital. For most financial institutions, including S&T, market risk primarily reflects exposures to changes in interest rates. Interest rate fluctuations affect earnings by changing net interest income and other interest-sensitive income and expense levels. Interest rate changes affect capital by changing the net present value of a bank’s future cash flows, and the cash flows themselves, as rates change. Accepting this risk is a normal part of banking and can be an important source of profitability and shareholder value. However, excessive interest rate risk can threaten a bank’s earnings, capital, liquidity and solvency. Our sensitivity to changes in interest rate movements is continually monitored by ALCO. ALCO monitors and manages market risk through rate shock analyses, economic value of equity, or EVE, analysis and by performing stress tests in order to mitigate earnings and market value fluctuations due to changes in interest rates.

Rate shock analyses results are compared to a base case to provide an estimate of the impact that market rate changes may have on 12 months of pretax net interest income. The base case and rate shock analyses are performed on a static balance sheet. A static balance sheet is a no growth balance sheet in which all maturing and/or repricing cash flows are reinvested in the same product at the existing product spread. Rate shock analyses assume an immediate parallel shift in market interest rates and also include management assumptions regarding the impact of interest rate changes on non-maturity deposit products (noninterest-bearing demand, interest-bearing demand, money market and savings) and changes in the prepayment behavior of fixed rate loans and securities with optionality. S&T policy guidelines limit the change in pretax net interest income over a 12 month horizon using rate shocks of +/- 300 basis points. Policy guidelines define the percent change in pretax net interest income by graduated risk tolerance levels of minimal, moderate and high. We have temporarily suspended the -200 and -300 basis point rate shock analyses. Due to the low interest rate environment we believe the impact to net interest income when evaluating the -200 and -300 basis point rate shock scenarios does not provide meaningful insight into our interest rate risk position.

In order to monitor interest rate risk beyond the 12 month time horizon of rate shocks, we also perform EVE analysis. EVE represents the present value of all asset cash flows minus the present value of all liability cash flows. EVE rate change results are compared to a base case to determine the impact that market rate changes may have on our EVE. As with rate shock analysis, EVE incorporates management assumptions regarding prepayment behavior of fixed rate loans and securities with optionality and the behavior and value of non-maturity deposit products. S&T policy guidelines limit the change in EVE given changes in rates of +/- 300 basis points. Policy guidelines define the percent change in EVE by graduated risk tolerance levels

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S&T BANCORP, INC. AND SUBSIDIARIES

Item 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK - continued

of minimal, moderate and high. We have also temporarily suspended the EVE -200 and -300 basis point scenarios due to the low interest rate environment.

The table below reflects the rate shock analyses and EVE results. Both are in the minimal risk tolerance level.

	June 30, 2014				December 31, 2013
Change in Interest Rate (basis points)	% Change in Pretax Net Interest Income		% Change in Economic Value of Equity		% Change in Pretax Net Interest Income		% Change in Economic Value of Equity
+300	6.8		(2.0	)	7.6		(6.1	)
+200	4.1		(1.0	)	5.3		(2.1	)
+100	1.8		1.9		2.3		—
-100	(3.4	)	(11.7	)	(3.4	)	(10.8	)

The results from the rate shock analyses are consistent with having an asset sensitive balance sheet. Having an asset sensitive balance sheet means more assets than liabilities will reprice during the measured time frames. The implications of an asset sensitive balance sheet will differ depending upon the change in market interest rates. For example, with an asset sensitive balance sheet in a declining interest rate environment, more assets than liabilities will decrease in rate. This situation could result in a decrease in net interest income and operating income. Conversely, with an asset sensitive balance sheet in a rising interest rate environment, more assets than liabilities will increase in rate. This situation could result in an increase in net interest income and operating income. As measured by rate shock analyses, an increase in interest rates would have a positive impact on pretax net interest income. However, there was a slight decline in the percent change in pretax net interest income for our rates up shock scenarios when comparing June 30, 2014 and December 31, 2013. The decline is a result of utilizing short term funding to support the asset growth during the first half of 2014.

When comparing the EVE results for June 30, 2014 and December 31, 2013 the percent change to EVE has improved in the rates up shock scenarios and decreased in the rate down shock scenario. The changes in EVE are due to the flattening of the yield curve between December 31, 2013 and June 30, 2014. The decrease in long term rates resulted in a lower June 30, 2014 base case EVE mainly as a result of lower non-maturity deposit values.

In addition to rate shocks and EVE, we perform a market risk stress test annually. The market risk stress test includes sensitivity analyses and simulations. Sensitivity analyses are performed to help us identify which model assumptions cause the greatest impact on pretax net interest income. Sensitivity analyses may include changing prepayment behavior of fixed rate loans and securities with optionality and the impact of interest rate changes on non-maturity deposit products. Simulation analyses may include the potential impact of rate shocks other than the policy guidelines of +/- 300 basis points, yield curve shape changes, significant balance mix changes and various growth scenarios. Simulations indicate that an increase in rates, particularly if the yield curve steepens, will most likely result in an improvement in pretax net interest income. We realize that some of the benefit reflected in our scenarios may be offset by a change in the competitive environment and a change in product preference by our customers.

Item 4. CONTROLS AND PROCEDURES

Evaluation of Disclosure Controls and Procedures

Under the supervision and with the participation of S&T’s Chief Executive Officer, or CEO, and Chief Financial Officer, or CFO (its principal executive officer and principal financial officer, respectively), management has evaluated the effectiveness of the design and operation of S&T’s disclosure controls and procedures as of June 30, 2014. In designing and evaluating the disclosure controls and procedures, management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives. We maintain disclosure controls and procedures that are designed to ensure that information required to be disclosed by us in the reports that we file or submit under the Securities Exchange Act of 1934, as amended, or the Exchange Act, is recorded, processed, summarized and reported within the time periods required by the Securities and Exchange Commission, or the SEC, and that such information is accumulated and communicated to S&T’s management, including our CEO and CFO, as appropriate, to allow timely decisions regarding required disclosure.

Based on and as of the date of such evaluation, our CEO and CFO concluded that the design and operation of our disclosure controls and procedures were effective in all material respects, as of the end of the period covered by this report.

61

Changes in Internal Control over Financial Reporting

During the quarter ended June 30, 2014, there were no changes made to S&T’s internal control over financial reporting (as defined in Rule 13a-15(f) under the Exchange Act) that materially affected, or are reasonably likely to materially affect, S&T’s internal control over financial reporting.

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S&T BANCORP, INC. AND SUBSIDIARIES

PART II

OTHER INFORMATION

Item 1. Legal Proceedings

None

Item 1A. Risk Factors

There have been no material changes to the risk factors that we have previously disclosed in Item 1A – “Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2013, as filed with the SEC on February 21, 2014.

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

None

Item 3. Defaults Upon Senior Securities

None

Item 4. Mine Safety Disclosures

Not Applicable

Item 5. Other Information

None

Item 6. Exhibits

31.1	Rule 13a-14(a) Certification of the Chief Executive Officer.
31.2	Rule 13a-14(a) Certification of the Chief Financial Officer.
32	Rule 13a-14(b) Certification of the Chief Executive Officer and Chief Financial Officer.
101	The following financial information from the Registrant's Quarterly Report on Form 10-Q for the quarter ended June 30, 2014 is formatted in eXtensible Business Reporting Language (XBRL): (i) Unaudited Consolidated Balance Sheet at June 30, 2014 and Audited Consolidated Balance Sheet at December 31, 2013, (ii) Unaudited Consolidated Statements of Comprehensive Income for the Three Months and Six Months ended June 30, 2014 and 2013, (iii) Unaudited Consolidated Statements of Changes in Shareholders’ Equity for the Six Months ended June 30, 2014 and 2013, (iv) Unaudited Consolidated Statements of Cash Flows for the Six Months ended June 30, 2014 and 2013 and (v) Notes to Unaudited Consolidated Financial Statements.

63

SIGNATURES

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

	S&T Bancorp, Inc. (Registrant)
Date: August 6, 2014	/s/ Mark Kochvar
	Mark Kochvar Senior Executive Vice President and Chief Financial Officer (Principal Financial Officer and Duly Authorized Signatory)

64

EX-31.1

Exhibit 31.1

CERTIFICATION

I, Todd D. Brice, certify that:

1. I have reviewed this quarterly report on Form 10-Q of S&T Bancorp, Inc.;

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

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

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

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

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

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

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

5. The registrant’s other certifying officer 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;

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 6, 2014

/s/ Todd D. Brice

Todd D. Brice, Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATION

I, Mark Kochvar, certify that:

1. I have reviewed this quarterly report on Form 10-Q of S&T Bancorp, Inc.;

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

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

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

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

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

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

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

5. The registrant’s other certifying officer 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;

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 6, 2014

/s/ Mark Kochvar

Mark Kochvar, Chief Financial Officer

EX-32

Exhibit 32

CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER

AND CHIEF FINANCIAL OFFICER

SARBANES-OXLEY ACT SECTION 906

Pursuant to 18 U.S.C. Section 1350 as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, in connection with the S&T Bancorp, Inc. (the “Company”) Quarterly Report on Form 10-Q for the period ended June 30, 2014 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Todd D. Brice, Chief Executive Officer of the Company, and I, Mark Kochvar, Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, to the best of my knowledge that:

1. The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company for the dates and period covered by the report.

This certificate is being made for the exclusive purpose of compliance by the Chief Executive Officer and Chief Financial Officer of the Company with the requirements of Section 906 of the Sarbanes-Oxley Act of 2002, and may not be disclosed, distributed or used by any person or for any reason other than as specifically required by law.

Date: August 6, 2014

/s/ Todd D. Brice	/s/ Mark Kochvar
Todd D. Brice, Chief Executive Officer	Mark Kochvar, Chief Financial Officer

XML

Securities Available-for-Sale - Composition of Securities Available-for-Sale (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 579,626	$ 510,399
Gross Unrealized Gains	11,164	6,802
Gross Unrealized Losses	(2,302)	(7,776)
Fair Value	588,488	509,425
Obligations of U.S. Government Corporations and Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	268,614	235,181
Gross Unrealized Gains	2,733	2,151
Gross Unrealized Losses	(1,099)	(2,581)
Fair Value	270,248	234,751
Collateralized Mortgage Obligations of U.S. Government Corporations and Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	93,787	63,776
Gross Unrealized Gains	1,035	601
Gross Unrealized Losses	(218)	(603)
Fair Value	94,604	63,774
Residential Mortgage-Backed Securities of U.S. Government Corporations and Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	44,900	47,934
Gross Unrealized Gains	1,720	1,420
Gross Unrealized Losses	(231)	(685)
Fair Value	46,389	48,669
Commercial Mortgage-Backed Securities of U.S. Government Corporations and Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	40,098	40,357
Gross Unrealized Gains	224	0
Gross Unrealized Losses	(402)	(1,305)
Fair Value	39,920	39,052
Obligations of States and Political Subdivisions [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	124,648	115,572
Gross Unrealized Gains	4,017	1,294
Gross Unrealized Losses	(352)	(2,602)
Fair Value	128,313	114,264
Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	572,047	502,820
Gross Unrealized Gains	9,729	5,466
Gross Unrealized Losses	(2,302)	(7,776)
Fair Value	579,474	500,510
Marketable Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	7,579	7,579
Gross Unrealized Gains	1,435	1,336
Gross Unrealized Losses	0	0
Fair Value	$ 9,014	$ 8,915

XML

Allowance for Loan Losses - Recorded Investment in Consumer Loan Classes by Performing and Nonperforming Status (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Financing Receivable, Recorded Investment [Line Items]
Recorded investment in consumer loan	$ 978,194	$ 972,319
% of Total	100.00%	100.00%
Accruing/Performing Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded investment in consumer loan	974,619	966,653
% of Total	99.60%	99.40%
Nonaccruing/Nonperforming Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded investment in consumer loan	3,575	5,666
% of Total	0.40%	0.60%
Residential Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded investment in consumer loan	492,589	487,092
% of Total	100.00%	100.00%
Residential Mortgage [Member] | Accruing/Performing Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded investment in consumer loan	490,471	483,754
% of Total	99.60%	99.30%
Residential Mortgage [Member] | Nonaccruing/Nonperforming Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded investment in consumer loan	2,118	3,338
% of Total	0.40%	0.70%
Home Equity [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded investment in consumer loan	416,226	414,195
% of Total	100.00%	100.00%
Home Equity [Member] | Accruing/Performing Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded investment in consumer loan	414,795	411,904
% of Total	99.70%	99.40%
Home Equity [Member] | Nonaccruing/Nonperforming Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded investment in consumer loan	1,431	2,291
% of Total	0.30%	0.60%
Installment and Other Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded investment in consumer loan	65,838	67,883
% of Total	100.00%	100.00%
Installment and Other Consumer [Member] | Accruing/Performing Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded investment in consumer loan	65,812	67,846
% of Total	99.90%	99.90%
Installment and Other Consumer [Member] | Nonaccruing/Nonperforming Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded investment in consumer loan	26	37
% of Total	0.10%	0.10%
Consumer Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded investment in consumer loan	3,541	3,149
% of Total	100.00%	100.00%
Consumer Construction [Member] | Accruing/Performing Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded investment in consumer loan	3,541	3,149
% of Total	100.00%	100.00%
Consumer Construction [Member] | Nonaccruing/Nonperforming Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded investment in consumer loan	$ 0	$ 0
% of Total	0.00%	0.00%

XML

Loans and Loans Held for Sale - Restructured Loans for Periods Stated (Detail) (USD $)	3 Months Ended				6 Months Ended
	Jun. 30, 2014 SecurityLoan		Jun. 30, 2013 SecurityLoan		Jun. 30, 2014 SecurityLoan		Jun. 30, 2013 SecurityLoan
Financing Receivable, Modifications [Line Items]
Number of Loans	7		25		19		54
Pre-Modification Outstanding Recorded Investment	$ 233,000	[1]	$ 5,713,000	[1]	$ 2,042,000	[1]	$ 8,685,000	[1]
Post-Modification Outstanding Recorded Investment	229,000	[1]	5,694,000	[1]	2,019,000	[1]	8,278,000	[1]
Total Difference in Recorded Investment	4,000		(19,000)		(23,000)		(407,000)
Debt forgiveness to customers			100,000
Principal Deferral [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	1		0		1		7
Pre-Modification Outstanding Recorded Investment	129,000	[1]	0	[1]	129,000	[1]	2,260,000	[1]
Post-Modification Outstanding Recorded Investment	127,000	[1]	0	[1]	127,000	[1]	1,873,000	[1]
Total Difference in Recorded Investment	(2,000)		0		(2,000)		(387,000)
Chapter 7 Bankruptcy [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	6	[2]	23	[2]	17	[2]	45	[2]
Pre-Modification Outstanding Recorded Investment	104,000	[1],[2]	623,000	[1],[2]	894,000	[1],[2]	1,335,000	[1],[2]
Post-Modification Outstanding Recorded Investment	102,000	[1],[2]	604,000	[1],[2]	873,000	[1],[2]	1,315,000	[1],[2]
Total Difference in Recorded Investment	(2,000)	[2]	(19,000)	[2]	(21,000)	[2]	(20,000)	[2]
Principal Forgiveness [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	0	[3]	1	[3]	0	[3]	1	[3]
Pre-Modification Outstanding Recorded Investment	0	[1],[3]	4,339,000	[1],[3]	0	[1],[3]	4,339,000	[1],[3]
Post-Modification Outstanding Recorded Investment	0	[1],[3]	4,339,000	[1],[3]	0	[1],[3]	4,339,000	[1],[3]
Total Difference in Recorded Investment	0	[3]	0	[3]	0	[3]	0	[3]
Maturity Date Extension [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	0		1		1		1
Pre-Modification Outstanding Recorded Investment	0	[1]	751,000	[1]	1,019,000	[1]	751,000	[1]
Post-Modification Outstanding Recorded Investment	0	[1]	751,000	[1]	1,019,000	[1]	751,000	[1]
Total Difference in Recorded Investment	0		0		0		0
Commercial Real Estate [Member] | Principal Deferral [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	1		0		1		3
Pre-Modification Outstanding Recorded Investment	129,000	[1]	0	[1]	129,000	[1]	1,541,000	[1]
Post-Modification Outstanding Recorded Investment	127,000	[1]	0	[1]	127,000	[1]	1,288,000	[1]
Total Difference in Recorded Investment	(2,000)		0		(2,000)		(253,000)
Commercial Real Estate [Member] | Chapter 7 Bankruptcy [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	0	[2]	4	[2]	0	[2]	7	[2]
Pre-Modification Outstanding Recorded Investment	0	[1],[2]	53,000	[1],[2]	0	[1],[2]	258,000	[1],[2]
Post-Modification Outstanding Recorded Investment	0	[1],[2]	51,000	[1],[2]	0	[1],[2]	255,000	[1],[2]
Total Difference in Recorded Investment	0	[2]	(2,000)	[2]	0	[2]	(3,000)	[2]
Commercial Real Estate [Member] | Principal Forgiveness [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	0	[3]	1	[3]	0	[2]	1	[2]
Pre-Modification Outstanding Recorded Investment	0	[1],[3]	4,339,000	[1],[3]	0	[1],[3]	4,339,000	[1],[3]
Post-Modification Outstanding Recorded Investment	0	[1],[3]	4,339,000	[1],[3]	0	[1],[3]	4,339,000	[1],[3]
Total Difference in Recorded Investment	0	[3]	0	[3]	0	[2]	0	[2]
Commercial and Industrial [Member] | Principal Deferral [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans					0		1
Pre-Modification Outstanding Recorded Investment					0	[1]	392,000	[1]
Post-Modification Outstanding Recorded Investment					0	[1]	387,000	[1]
Total Difference in Recorded Investment					0		(5,000)
Commercial and Industrial [Member] | Chapter 7 Bankruptcy [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans					1	[2]	1	[2]
Pre-Modification Outstanding Recorded Investment					287,000	[1],[2]	3,000	[1],[2]
Post-Modification Outstanding Recorded Investment					286,000	[1],[2]	3,000	[1],[2]
Total Difference in Recorded Investment					(1,000)	[2]	0	[2]
Commercial and Industrial [Member] | Maturity Date Extension [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	0		1		0		1
Pre-Modification Outstanding Recorded Investment	0	[1]	751,000	[1]	0	[1]	751,000	[1]
Post-Modification Outstanding Recorded Investment	0	[1]	751,000	[1]	0	[1]	751,000	[1]
Total Difference in Recorded Investment	0		0		0		0
Commercial Construction [Member] | Maturity Date Extension [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans					1		0
Pre-Modification Outstanding Recorded Investment					1,019,000	[1]	0	[1]
Post-Modification Outstanding Recorded Investment					1,019,000	[1]	0	[1]
Total Difference in Recorded Investment					0		0
Residential Mortgage [Member] | Principal Deferral [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans					0		2
Pre-Modification Outstanding Recorded Investment					0	[1]	153,000	[1]
Post-Modification Outstanding Recorded Investment					0	[1]	153,000	[1]
Total Difference in Recorded Investment					0		0
Residential Mortgage [Member] | Chapter 7 Bankruptcy [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	1	[2]	2	[2]	5	[2]	8	[2]
Pre-Modification Outstanding Recorded Investment	52,000	[1],[2]	84,000	[1],[2]	329,000	[1],[2]	353,000	[1],[2]
Post-Modification Outstanding Recorded Investment	52,000	[1],[2]	75,000	[1],[2]	327,000	[1],[2]	344,000	[1],[2]
Total Difference in Recorded Investment	0	[2]	(9,000)	[2]	(2,000)	[2]	(9,000)	[2]
Home Equity [Member] | Principal Deferral [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans					0		1
Pre-Modification Outstanding Recorded Investment					0	[1]	174,000	[1]
Post-Modification Outstanding Recorded Investment					0	[1]	45,000	[1]
Total Difference in Recorded Investment					0		(129,000)
Home Equity [Member] | Chapter 7 Bankruptcy [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	4	[2]	17	[2]	10	[2]	23	[2]
Pre-Modification Outstanding Recorded Investment	43,000	[1],[2]	486,000	[1],[2]	269,000	[1],[2]	648,000	[1],[2]
Post-Modification Outstanding Recorded Investment	41,000	[1],[2]	478,000	[1],[2]	251,000	[1],[2]	640,000	[1],[2]
Total Difference in Recorded Investment	(2,000)	[2]	(8,000)	[2]	(18,000)	[2]	(8,000)	[2]
Installment and Other Consumer [Member] | Chapter 7 Bankruptcy [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	1	[2]	0	[2]	1	[2]	6	[2]
Pre-Modification Outstanding Recorded Investment	9,000	[1],[2]	0	[1],[2]	9,000	[1],[2]	73,000	[1],[2]
Post-Modification Outstanding Recorded Investment	9,000	[1],[2]	0	[1],[2]	9,000	[1],[2]	73,000	[1],[2]
Total Difference in Recorded Investment	$ 0	[2]	$ 0	[2]	$ 0	[2]	$ 0	[2]

[1] Excludes loans that were fully paid off or fully charged-off by period end. The pre-modification balance represents the balance outstanding prior to modification. The post-modification balance represents the outstanding balance at period end.

[2] Chapter 7 bankruptcy loans where the debt has been legally discharged through the bankruptcy court and not reaffirmed.

[3] This loan had debt forgiveness of $0.1 million to the customer; however, the loan was previously charged off to a balance below the actual contractual balance.

XML

Segments - Total Assets by Reportable Operating Segment (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Segment Reporting, Asset Reconciling Item [Line Items]
Total Assets	$ 4,788,030	$ 4,533,190
Community Banking [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total Assets	4,778,233	4,524,939
Insurance [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total Assets	7,715	6,926
Wealth Management [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total Assets	$ 2,082	$ 1,325

XML

Allowance for Loan Losses - Investments in Loans Considered to be Impaired and Related Information on Impaired Loans (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Financing Receivable, Impaired [Line Items]
Without a related allowance recorded, Recorded Investment	$ 46,141		$ 46,141		$ 52,089
Without a related allowance, Unpaid Principal Balance	57,560		57,560		67,122
Without a related allowance recorded, Related Allowance	0		0		0
With a related allowance recorded, Recorded Investment	68		68		767
With a related allowance recorded, Unpaid Principal Balance	68		68		1,469
With a related allowance recorded, Related Allowance	58		58		97
Impaired Financing Receivable, Recorded Investment, Total	46,209		46,209		52,856
Impaired Financing Receivable, Unpaid Principal Balance, Total	57,628		57,628		68,591
Impaired Financing Receivable, Related Allowance	58		58		97
With a related allowance recorded, Average Recorded Investment	70	2,198	73	3,339
With a related allowance recorded, Interest Income Recognized	1	5	3	5
Without a related allowance recorded, Average Recorded Investment	46,253	68,606	46,719	69,784
Without a related allowance recorded, Interest Income Recognized	374	485	762	988
Impaired Financing Receivable, Average Recorded Investment, Total	46,323	70,804	46,792	73,123
Impaired Financing Receivable, Interest Income Recognized, Total	375	490	765	993
Commercial Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Without a related allowance recorded, Recorded Investment	21,228		21,228		26,968
Without a related allowance, Unpaid Principal Balance	28,296		28,296		35,474
Without a related allowance recorded, Related Allowance	0		0		0
With a related allowance recorded, Recorded Investment	0		0		0
With a related allowance recorded, Unpaid Principal Balance	0		0		0
With a related allowance recorded, Related Allowance	0		0		0
Impaired Financing Receivable, Recorded Investment, Total	21,228		21,228		26,968
Impaired Financing Receivable, Unpaid Principal Balance, Total	28,296		28,296		35,474
Impaired Financing Receivable, Related Allowance	0		0		0
With a related allowance recorded, Average Recorded Investment	0	2,084	0	3,282
With a related allowance recorded, Interest Income Recognized	0	0	0	0
Without a related allowance recorded, Average Recorded Investment	21,382	30,956	21,980	31,181
Without a related allowance recorded, Interest Income Recognized	159	174	329	415
Impaired Financing Receivable, Average Recorded Investment, Total	21,382	33,040	21,980	34,463
Impaired Financing Receivable, Interest Income Recognized, Total	159	174	329	415
Commercial and Industrial [Member]
Financing Receivable, Impaired [Line Items]
Without a related allowance recorded, Recorded Investment	9,545		9,545		9,580
Without a related allowance, Unpaid Principal Balance	9,660		9,660		9,703
Without a related allowance recorded, Related Allowance	0		0		0
With a related allowance recorded, Recorded Investment	0		0		0
With a related allowance recorded, Unpaid Principal Balance	0		0		0
With a related allowance recorded, Related Allowance	0		0		0
Impaired Financing Receivable, Recorded Investment, Total	9,545		9,545		9,580
Impaired Financing Receivable, Unpaid Principal Balance, Total	9,660		9,660		9,703
Impaired Financing Receivable, Related Allowance	0		0		0
With a related allowance recorded, Average Recorded Investment	0	0	0	0
With a related allowance recorded, Interest Income Recognized	0	0	0	0
Without a related allowance recorded, Average Recorded Investment	9,317	12,452	9,066	12,449
Without a related allowance recorded, Interest Income Recognized	57	66	114	135
Impaired Financing Receivable, Average Recorded Investment, Total	9,317	12,452	9,066	12,449
Impaired Financing Receivable, Interest Income Recognized, Total	57	66	114	135
Commercial Construction [Member]
Financing Receivable, Impaired [Line Items]
Without a related allowance recorded, Recorded Investment	8,179		8,179		7,391
Without a related allowance, Unpaid Principal Balance	11,866		11,866		12,353
Without a related allowance recorded, Related Allowance	0		0		0
With a related allowance recorded, Recorded Investment	0		0		681
With a related allowance recorded, Unpaid Principal Balance	0		0		1,383
With a related allowance recorded, Related Allowance	0		0		25
Impaired Financing Receivable, Recorded Investment, Total	8,179		8,179		8,072
Impaired Financing Receivable, Unpaid Principal Balance, Total	11,866		11,866		13,736
Impaired Financing Receivable, Related Allowance	0		0		25
With a related allowance recorded, Average Recorded Investment	0	0	0	0
With a related allowance recorded, Interest Income Recognized	0	0	0	0
Without a related allowance recorded, Average Recorded Investment	8,279	16,376	8,301	16,854
Without a related allowance recorded, Interest Income Recognized	57	87	114	221
Impaired Financing Receivable, Average Recorded Investment, Total	8,279	16,376	8,301	16,854
Impaired Financing Receivable, Interest Income Recognized, Total	57	87	114	221
Consumer Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Without a related allowance recorded, Recorded Investment	7,082		7,082		8,026
Without a related allowance, Unpaid Principal Balance	7,629		7,629		9,464
Without a related allowance recorded, Related Allowance	0		0		0
With a related allowance recorded, Recorded Investment	47		47		53
With a related allowance recorded, Unpaid Principal Balance	47		47		53
With a related allowance recorded, Related Allowance	47		47		53
Impaired Financing Receivable, Recorded Investment, Total	7,129		7,129		8,079
Impaired Financing Receivable, Unpaid Principal Balance, Total	7,676		7,676		9,517
Impaired Financing Receivable, Related Allowance	47		47		53
With a related allowance recorded, Average Recorded Investment	48	86	50	43
With a related allowance recorded, Interest Income Recognized	1	4	2	4
Without a related allowance recorded, Average Recorded Investment	7,166	8,708	7,260	9,194
Without a related allowance recorded, Interest Income Recognized	100	156	203	215
Impaired Financing Receivable, Average Recorded Investment, Total	7,214	8,794	7,310	9,237
Impaired Financing Receivable, Interest Income Recognized, Total	101	160	205	219
Other Consumer [Member]
Financing Receivable, Impaired [Line Items]
Without a related allowance recorded, Recorded Investment	107		107		124
Without a related allowance, Unpaid Principal Balance	109		109		128
Without a related allowance recorded, Related Allowance	0		0		0
With a related allowance recorded, Recorded Investment	21		21		33
With a related allowance recorded, Unpaid Principal Balance	21		21		33
With a related allowance recorded, Related Allowance	11		11		19
Impaired Financing Receivable, Recorded Investment, Total	128		128		157
Impaired Financing Receivable, Unpaid Principal Balance, Total	130		130		161
Impaired Financing Receivable, Related Allowance	11		11		19
With a related allowance recorded, Average Recorded Investment	22	28	23	14
With a related allowance recorded, Interest Income Recognized	0	1	1	1
Without a related allowance recorded, Average Recorded Investment	109	114	112	106
Without a related allowance recorded, Interest Income Recognized	1	2	2	2
Impaired Financing Receivable, Average Recorded Investment, Total	131	142	135	120
Impaired Financing Receivable, Interest Income Recognized, Total	$ 1	$ 3	$ 3	$ 3

XML

Loans and Loans Held for Sale - Composition of Loans (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Composition of the loans
Commercial Loans	$ 2,746,885	$ 2,593,880
Consumer Loans	978,194	972,319
Total Portfolio Loans	3,725,079	3,566,199
Loans held for sale	3,102	2,136
Total Loans	3,728,181	3,568,335
Commercial Real Estate [Member]
Composition of the loans
Commercial Loans	1,636,383	1,607,756
Total Portfolio Loans	1,636,383	1,607,756
Total Loans	1,636,383	1,607,756
Commercial and Industrial [Member]
Composition of the loans
Commercial Loans	922,191	842,449
Total Portfolio Loans	922,191	842,449
Total Loans	922,191	842,449
Commercial Construction [Member]
Composition of the loans
Commercial Loans	188,311	143,675
Total Portfolio Loans	188,311	143,675
Total Loans	188,311	143,675
Residential Mortgage [Member]
Composition of the loans
Consumer Loans	492,589	487,092
Total Loans	492,589	487,092
Home Equity [Member]
Composition of the loans
Consumer Loans	416,226	414,195
Total Loans	416,226	414,195
Installment and Other Consumer [Member]
Composition of the loans
Consumer Loans	65,838	67,883
Total Loans	65,838	67,883
Consumer Construction [Member]
Composition of the loans
Consumer Loans	3,541	3,149
Total Loans	$ 3,541	$ 3,149

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Earnings Per Share - Reconciles Numerators and Denominators of Basic Earnings Per Share with Diluted Earnings Per Share (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Numerator for Earnings per Share-Basic:
Net income	$ 14,720	$ 14,103	$ 28,753	$ 26,433
Less: Income allocated to participating shares	29	36	64	81
Net Income Allocated to Shareholders	14,691	14,067	28,689	26,352
Numerator for Earnings per Share-Diluted:
Net income	14,720	14,103	28,753	26,433
Net Income Available to Shareholders	$ 14,720	$ 14,103	$ 28,753	$ 26,433
Denominators:
Weighted Average Shares Outstanding-Basic	29,684,300	29,654,018	29,672,611	29,637,825
Add: Dilutive potential shares	16,894	23,858	27,559	41,319
Denominator for Treasury Stock Method-Diluted	29,701,194	29,677,876	29,700,170	29,679,144
Weighted Average Shares Outstanding-Basic	29,684,300	29,654,018	29,672,611	29,637,825
Add: Average participating shares outstanding	58,973	74,994	66,563	91,530
Denominator for Two-Class Method-Diluted	29,743,273	29,729,012	29,739,174	29,729,355
Earnings per share—basic (in dollars per share)	$ 0.49	$ 0.47	$ 0.97	$ 0.89
Earnings per share—diluted (in dollars per share)	$ 0.49	$ 0.47	$ 0.97	$ 0.89
Warrants [Member]
Denominators:
Anti-dilutive excluded from dilutive potential shares	517,012	517,012	517,012	517,012
Stock Options [Member]
Denominators:
Anti-dilutive excluded from dilutive potential shares	428,493	629,570	428,676	642,499
Restricted Stock [Member]
Denominators:
Anti-dilutive excluded from dilutive potential shares	42,079	51,136	39,005	50,211

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Allowance for Loan Losses - Summary of Allowance for Loan Losses and Recorded Investments (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Individually Evaluated for Impairment	$ 58		$ 97
Allowance for Loan Losses, Collectively Evaluated for Impairment	46,522		46,158
Total Allowance for Loan Losses	46,580	46,616	46,255	46,105	45,936	46,484
Portfolio Loans, Individually Evaluated for Impairment	46,209		52,856
Portfolio Loans, Collectively Evaluated for Impairment	3,678,870		3,513,343
Total Portfolio Loans	3,725,079		3,566,199
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Individually Evaluated for Impairment	0		0
Allowance for Loan Losses, Collectively Evaluated for Impairment	20,733		18,921
Total Allowance for Loan Losses	20,733	19,880	18,921	23,484	24,442	25,246
Portfolio Loans, Individually Evaluated for Impairment	21,228		26,968
Portfolio Loans, Collectively Evaluated for Impairment	1,615,155		1,580,788
Total Portfolio Loans	1,636,383		1,607,756
Commercial and Industrial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Individually Evaluated for Impairment	0		0
Allowance for Loan Losses, Collectively Evaluated for Impairment	13,004		14,433
Total Allowance for Loan Losses	13,004	13,979	14,433	9,123	8,676	7,759
Portfolio Loans, Individually Evaluated for Impairment	9,545		9,580
Portfolio Loans, Collectively Evaluated for Impairment	912,646		832,869
Total Portfolio Loans	922,191		842,449
Commercial Construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Individually Evaluated for Impairment	0		25
Allowance for Loan Losses, Collectively Evaluated for Impairment	4,759		5,349
Total Allowance for Loan Losses	4,759	5,183	5,374	5,812	6,603	7,500
Portfolio Loans, Individually Evaluated for Impairment	8,179		8,072
Portfolio Loans, Collectively Evaluated for Impairment	180,132		135,603
Total Portfolio Loans	188,311		143,675
Consumer Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Individually Evaluated for Impairment	47		53
Allowance for Loan Losses, Collectively Evaluated for Impairment	6,658		6,309
Total Allowance for Loan Losses	6,705	6,408	6,362	6,655	5,259	5,058
Portfolio Loans, Individually Evaluated for Impairment	7,129		8,079
Portfolio Loans, Collectively Evaluated for Impairment	905,227		896,357
Total Portfolio Loans	912,356		904,436
Other Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Individually Evaluated for Impairment	11		19
Allowance for Loan Losses, Collectively Evaluated for Impairment	1,368		1,146
Total Allowance for Loan Losses	1,379	1,166	1,165	1,031	956	921
Portfolio Loans, Individually Evaluated for Impairment	128		157
Portfolio Loans, Collectively Evaluated for Impairment	65,710		67,726
Total Portfolio Loans	$ 65,838		$ 67,883

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Segments - Financial Information of Segments (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Segment Reporting, Asset Reconciling Item [Line Items]
Interest income	$ 39,872	$ 38,553	$ 78,537	$ 76,396
Interest expense	3,017	3,957	6,091	8,131
NET INTEREST INCOME	36,855	34,596	72,446	68,265
Provision for loan losses	(1,134)	1,023	(845)	3,330
Noninterest income	11,771	12,867	23,187	27,673
Noninterest expense	29,043	27,077	56,821	57,325
Depreciation expense	825	896	1,645	1,833
Amortization of intangible assets	297	413	613	844
Provision (benefit) for income taxes	4,875	3,951	8,646	6,173
Net Income	14,720	14,103	28,753	26,433
Operating Segments [Member] | Community Banking [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Interest income	39,845	38,505	78,475	76,194
Interest expense	3,415	4,663	6,897	9,454
NET INTEREST INCOME	36,430	33,842	71,578	66,740
Provision for loan losses	(1,134)	1,023	(845)	3,330
Noninterest income	7,522	8,467	14,375	18,823
Noninterest expense	25,092	21,786	49,066	46,427
Depreciation expense	805	876	1,607	1,795
Amortization of intangible assets	274	387	566	792
Provision (benefit) for income taxes	4,637	4,592	8,002	7,438
Net Income	14,278	13,645	27,557	25,781
Operating Segments [Member] | Insurance [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Interest income	0	0	0	1
Interest expense	0	0	0	0
NET INTEREST INCOME	0	0	0	1
Provision for loan losses	0	0	0	0
Noninterest income	1,245	1,349	2,766	2,947
Noninterest expense	1,044	1,105	2,199	2,552
Depreciation expense	13	12	25	22
Amortization of intangible assets	13	13	25	26
Provision (benefit) for income taxes	61	77	181	122
Net Income	114	142	336	226
Operating Segments [Member] | Wealth Management [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Interest income	136	135	310	273
Interest expense	0	0	0	0
NET INTEREST INCOME	136	135	310	273
Provision for loan losses	0	0	0	0
Noninterest income	2,828	2,812	5,764	5,386
Noninterest expense	2,442	2,389	4,716	4,878
Depreciation expense	7	8	13	16
Amortization of intangible assets	10	13	22	26
Provision (benefit) for income taxes	177	221	463	313
Net Income	328	316	860	426
Eliminations [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Interest income	(109)	(87)	(248)	(72)
Interest expense	(398)	(706)	(806)	(1,323)
NET INTEREST INCOME	289	619	558	1,251
Provision for loan losses	0	0	0	0
Noninterest income	176	239	282	517
Noninterest expense	465	1,797	840	3,468
Depreciation expense	0	0	0	0
Amortization of intangible assets	0	0	0	0
Provision (benefit) for income taxes	0	(939)	0	(1,700)
Net Income	$ 0	$ 0	$ 0	$ 0

XML

Allowance for Loan Losses (Tables)

6 Months Ended

Jun. 30, 2014

Receivables [Abstract]

Age Analysis of Past Due Loans Segregated by Class of Loans

The following tables present the age analysis of past due loans segregated by class of loans as of June 30, 2014 and December 31, 2013:

	June 30, 2014
(dollars in thousands)	Current		30-59 Days Past Due		60-89 Days Past Due		Nonaccrual		Total Past Due		Total Loans
Commercial real estate	$	1,629,928	$	753	$	44	$	5,658	$	6,455	$	1,636,383
Commercial and industrial	918,846		559		249		2,537		3,345		922,191
Commercial construction	185,428		—		1,014		1,869		2,883		188,311
Residential mortgage	488,551		1,022		898		2,118		4,038		492,589
Home equity	412,851		1,466		478		1,431		3,375		416,226
Installment and other consumer	65,380		364		68		26		458		65,838
Consumer construction	3,541		—		—		—		—		3,541
Loans held for sale	1,802		—		—		1,300		1,300		3,102
Totals	$	3,706,327	$	4,164	$	2,751	$	14,939	$	21,854	$	3,728,181
	December 31, 2013
(dollars in thousands)	Current		30-59 Days Past Due		60-89 Days Past Due		Nonaccrual		Total Past Due		Total Loans
Commercial real estate	$	1,595,590	$	1,209	$	207	$	10,750	$	12,166	$	1,607,756
Commercial and industrial	836,276		2,599		278		3,296		6,173		842,449
Commercial construction	139,133		1,049		751		2,742		4,542		143,675
Residential mortgage	481,260		828		1,666		3,338		5,832		487,092
Home equity	408,777		2,468		659		2,291		5,418		414,195
Installment and other consumer	67,420		382		44		37		463		67,883
Consumer construction	3,149		—		—		—		—		3,149
Loans held for sale	2,136		—		—		—		—		2,136
Totals	$	3,533,741	$	8,535	$	3,605	$	22,454	$	34,594	$	3,568,335

Recorded Investment in Commercial Loan Classes by Internally Assigned Risk Ratings

The following tables summarize the recorded investment in commercial loan classes by internally assigned risk ratings as of the dates presented:

	June 30, 2014
(dollars in thousands)	Commercial Real Estate		% of Total		Commercial and Industrial		% of Total		Commercial Construction		% of Total		Total		% of Total
Pass	$	1,563,882	95.6	%	$	872,686	94.6	%	$	167,267	88.8	%	$	2,603,835	94.8	%
Special mention	45,275		2.8	%	33,966		3.7	%	12,882		6.8	%	92,123		3.4	%
Substandard	27,226		1.6	%	15,539		1.7	%	8,162		4.4	%	50,927		1.8	%
Total	$	1,636,383	100	%	$	922,191	100.0	%	$	188,311	100.0	%	$	2,746,885	100.0	%
	December 31, 2013
(dollars in thousands)	Commercial Real Estate		% of Total		Commercial and Industrial		% of Total		Commercial Construction		% of Total		Total		% of Total
Pass	$	1,519,720	94.5	%	$	792,029	94.0	%	$	119,177	82.9	%	$	2,430,926	93.7	%
Special mention	57,073		3.6	%	34,085		4.1	%	15,621		10.9	%	106,779		4.1	%
Substandard	30,963		1.9	%	16,335		1.9	%	8,877		6.2	%	56,175		2.2	%
Total	$	1,607,756	100.0	%	$	842,449	100.0	%	$	143,675	100.0	%	$	2,593,880	100.0	%

Recorded Investment in Consumer Loan Classes by Performing and Nonperforming Status

The following tables indicate the recorded investment in consumer loan classes by performing and nonperforming status as of the dates presented:

	June 30, 2014
(dollars in thousands)	Residential Mortgage		% of Total		Home Equity		% of Total		Installment and other consumer		% of Total		Consumer Construction		% of Total		Total		% of Total
Performing	$	490,471	99.6	%	$	414,795	99.7	%	$	65,812	99.9	%	$	3,541	100.0	%	$	974,619	99.6	%
Nonperforming	2,118		0.4	%	1,431		0.3	%	26		0.1	%	—		—	%	3,575		0.4	%
Total	$	492,589	100.0	%	$	416,226	100.0	%	$	65,838	100.0	%	$	3,541	100.0	%	$	978,194	100.0	%
	December 31, 2013
(dollars in thousands)	Residential Mortgage		% of Total		Home Equity		% of Total		Installment and other consumer		% of Total		Consumer Construction		% of Total		Total		% of Total
Performing	$	483,754	99.3	%	$	411,904	99.4	%	$	67,846	99.9	%	$	3,149	100.0	%	$	966,653	99.4	%
Nonperforming	3,338		0.7	%	2,291		0.6	%	37		0.1	%	—		—	%	5,666		0.6	%
Total	$	487,092	100.0	%	$	414,195	100.0	%	$	67,883	100.0	%	$	3,149	100.0	%	$	972,319	100.0	%

Investments in Loans Considered to be Impaired and Related Information on Impaired Loans

The following tables summarize investments in loans considered to be impaired and related information on those impaired loans for the periods presented:

	For the Three Months Ended
	June 30, 2014				June 30, 2013
(dollars in thousands)	Average Recorded Investment		Interest Income Recognized		Average Recorded Investment		Interest Income Recognized
Without a related allowance recorded:
Commercial real estate	$	21,382	$	159	$	30,956	$	174
Commercial and industrial	9,317		57		12,452		66
Commercial construction	8,279		57		16,376		87
Consumer real estate	7,166		100		8,708		156
Other consumer	109		1		114		2
Total without a Related Allowance Recorded	46,253		374		68,606		485
With a related allowance recorded:
Commercial real estate	—		—		2,084		—
Commercial and industrial	—		—		—		—
Commercial construction	—		—		—		—
Consumer real estate	48		1		86		4
Other consumer	22		—		28		1
Total with a Related Allowance Recorded	70		1		2,198		5
Total:
Commercial real estate	21,382		159		33,040		174
Commercial and industrial	9,317		57		12,452		66
Commercial construction	8,279		57		16,376		87
Consumer real estate	7,214		101		8,794		160
Other consumer	131		1		142		3
Total	$	46,323	$	375	$	70,804	$	490

	For the Six Months Ended
	June 30, 2014				June 30, 2013
(dollars in thousands)	Average Recorded Investment		Interest Income Recognized		Average Recorded Investment		Interest Income Recognized
Without a related allowance recorded:
Commercial real estate	$	21,980	$	329	$	31,181	$	415
Commercial and industrial	9,066		114		12,449		135
Commercial construction	8,301		114		16,854		221
Consumer real estate	7,260		203		9,194		215
Other consumer	112		2		106		2
Total without a Related Allowance Recorded	46,719		762		69,784		988
With a related allowance recorded:
Commercial real estate	$	—	$	—	3,282		$	—
Commercial and industrial	—		—		—		—
Commercial construction	—		—		—		—
Consumer real estate	50		2		43		4
Other consumer	23		1		14		1
Total with a Related Allowance Recorded	73		3		3,339		5
Total:
Commercial real estate	21,980		329		34,463		415
Commercial and industrial	9,066		114		12,449		135
Commercial construction	8,301		114		16,854		221
Consumer real estate	7,310		205		9,237		219
Other consumer	135		3		120		3
Total	$	46,792	$	765	$	73,123	$	993

The following table presents investments in loans considered to be impaired and related information on those impaired loans for the periods presented:

	June 30, 2014						December 31, 2013
(dollars in thousands)	Recorded Investment		Unpaid Principal Balance		Related Allowance		Recorded Investment		Unpaid Principal Balance		Related Allowance
Without a related allowance recorded:
Commercial real estate	$	21,228	$	28,296	$	—	$	26,968	$	35,474	$	—
Commercial and industrial	9,545		9,660		—		9,580		9,703		—
Commercial construction	8,179		11,866		—		7,391		12,353		—
Consumer real estate	7,082		7,629		—		8,026		9,464		—
Other consumer	107		109		—		124		128		—
Total without a Related Allowance Recorded	46,141		57,560		—		52,089		67,122		—
With a related allowance recorded:
Commercial real estate	—		—		—		—		—		—
Commercial and industrial	—		—		—		—		—		—
Commercial construction	—		—		—		681		1,383		25
Consumer real estate	47		47		47		53		53		53
Other consumer	21		21		11		33		33		19
Total with a Related Allowance Recorded	68		68		58		767		1,469		97
Total:
Commercial real estate	21,228		28,296		—		26,968		35,474		—
Commercial and industrial	9,545		9,660		—		9,580		9,703		—
Commercial construction	8,179		11,866		—		8,072		13,736		25
Consumer real estate	7,129		7,676		47		8,079		9,517		53
Other consumer	128		130		11		157		161		19
Total	$	46,209	$	57,628	$	58	$	52,856	$	68,591	$	97

Summary of Allowance for Loan Losses

The following tables detail activity in the ALL for the periods presented:

	Three Months Ended June 30, 2014
(dollars in thousands)	Commercial Real Estate			Commercial and Industrial			Commercial Construction			Consumer Real Estate			Other Consumer			Total Loans
Balance at beginning of period	$	19,880		$	13,979		$	5,183		$	6,408		$	1,166		$	46,616
Charge-offs	(1,737		)	(743		)	(664		)	(425		)	(177		)	(3,746		)
Recoveries	1,294			2,936			324			164			126			4,844
Net Recoveries/ (Charge-offs)	(443		)	2,193			(340		)	(261		)	(51		)	1,098
Provision for loan losses	1,296			(3,168		)	(84		)	558			264			(1,134		)
Balance at End of Period	$	20,733		$	13,004		$	4,759		$	6,705		$	1,379		$	46,580
	Three Months Ended June 30, 2013
(dollars in thousands)	Commercial Real Estate			Commercial and Industrial			Commercial Construction			Consumer Real Estate			Other Consumer			Total Loans
Balance at beginning of period	$	24,442		$	8,676		$	6,603		$	5,259		$	956		$	45,936
Charge-offs	(1,170		)	(563		)	(54		)	(743		)	(399		)	(2,929		)
Recoveries	1,572			190			2			225			86			2,075
Net (Charge-offs)/ Recoveries	402			(373		)	(52		)	(518		)	(313		)	(854		)
Provision for loan losses	(1,360		)	820			(739		)	1,914			388			1,023
Balance at End of Period	$	23,484		$	9,123		$	5,812		$	6,655		$	1,031		$	46,105
	Six Months Ended June 30, 2014
(dollars in thousands)	Commercial Real Estate			Commercial and Industrial			Commercial Construction			Consumer Real Estate			Other Consumer			Total Loans
Balance at beginning of period	$	18,921		$	14,433		$	5,374		$	6,362		$	1,165		$	46,255
Charge-offs	(2,004		)	(1,033		)	(692		)	(547		)	(445		)	(4,721		)
Recoveries	1,834			3,249			375			223			210			5,891
Net Recoveries/ (Charge-offs)	(170		)	2,216			(317		)	(324		)	(235		)	1,170
Provision for loan losses	1,982			(3,645		)	(298		)	667			449			(845		)
Balance at End of Period	$	20,733		$	13,004		$	4,759		$	6,705		$	1,379		$	46,580
	Six Months Ended June 30, 2013
(dollars in thousands)	Commercial Real Estate			Commercial and Industrial			Commercial Construction			Consumer Real Estate			Other Consumer			Total Loans
Balance at beginning of period	$	25,246		$	7,759		$	7,500		$	5,058		$	921		$	46,484
Charge-offs	(2,809		)	(1,923		)	(443		)	(1,237		)	(651		)	(7,063		)
Recoveries	2,322			290			55			508			179			3,354
Net (Charge-offs)/ Recoveries	(487		)	(1,633		)	(388		)	(729		)	(472		)	(3,709		)
Provision for loan losses	(1,275		)	2,997			(1,300		)	2,326			582			3,330
Balance at End of Period	$	23,484		$	9,123		$	5,812		$	6,655		$	1,031		$	46,105

Summary of Allowance for Loan Losses and Recorded Investments

The following tables present the ALL and recorded investments in loans by category as of June 30, 2014 and December 31, 2013:

	June 30, 2014
	Allowance for Loan Losses						Portfolio Loans
(dollars in thousands)	Individually Evaluated for Impairment		Collectively Evaluated for Impairment		Total		Individually Evaluated for Impairment		Collectively Evaluated for Impairment		Total
Commercial real estate	$	—	$	20,733	$	20,733	$	21,228	$	1,615,155	$	1,636,383
Commercial and industrial	—		13,004		13,004		9,545		912,646		922,191
Commercial construction	—		4,759		4,759		8,179		180,132		188,311
Consumer real estate	47		6,658		6,705		7,129		905,227		912,356
Other consumer	11		1,368		1,379		128		65,710		65,838
Total	$	58	$	46,522	$	46,580	$	46,209	$	3,678,870	$	3,725,079
	December 31, 2013
	Allowance for Loan Losses						Portfolio Loans
(dollars in thousands)	Individually Evaluated for Impairment		Collectively Evaluated for Impairment		Total		Individually Evaluated for Impairment		Collectively Evaluated for Impairment		Total
Commercial real estate	$	—	$	18,921	$	18,921	$	26,968	$	1,580,788	$	1,607,756
Commercial and industrial	—		14,433		14,433		9,580		832,869		842,449
Commercial construction	25		5,349		5,374		8,072		135,603		143,675
Consumer real estate	53		6,309		6,362		8,079		896,357		904,436
Other consumer	19		1,146		1,165		157		67,726		67,883
Total	$	97	$	46,158	$	46,255	$	52,856	$	3,513,343	$	3,566,199

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Loans and Loans Held for Sale - Summary of Nonperforming Assets (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Nonperforming Assets
Nonaccrual loans	$ 9,698	$ 12,387
Nonaccrual TDRs	5,241	10,067
Total nonaccrual loans	14,939	22,454
OREO	431	410
Total Nonperforming Assets	$ 15,370	$ 22,864

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Securities Available-for-Sale - Additional Information (Detail) (USD $)	6 Months Ended
	Jun. 30, 2014 security	Dec. 31, 2013
Investments, Debt and Equity Securities [Abstract]
Number of debt securities on which unrealized losses were primarily attributable to changes in interest	19
Unrealized losses reclassified out of accumulated other comprehensive income into earnings	$ 0
Carrying values of securities	$ 273,500,000	$ 243,200,000

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Fair Value Measurements - Assets Measured at Estimated Fair Value on Nonrecurring Basis by Fair Value Hierarchy (Detail) (Fair Value, Measurements, Nonrecurring [Member], USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
ASSETS
Loans held for sale	$ 1,300	$ 1,516
Impaired loans	14,483	19,197
Other real estate owned	317	317
Mortgage servicing rights	1,211	1,025
Total Assets	17,311	22,055
Level 1 [Member]
ASSETS
Loans held for sale
Impaired loans
Other real estate owned
Mortgage servicing rights
Total Assets
Level 2 [Member]
ASSETS
Loans held for sale
Impaired loans
Other real estate owned
Mortgage servicing rights
Total Assets
Level 3 [Member]
ASSETS
Loans held for sale	1,300	1,516
Impaired loans	14,483	19,197
Other real estate owned	317	317
Mortgage servicing rights	1,211	1,025
Total Assets	$ 17,311	$ 22,055

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Allowance for Loan Losses - Recorded Investment in Commercial Loan Classes by Internally Assigned Risk Ratings (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in commercial loan	$ 2,746,885	$ 2,593,880
Total percentage of recorded investment in commercial loan	100.00%	100.00%
Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in commercial loan	2,603,835	2,430,926
Total percentage of recorded investment in commercial loan	94.80%	93.70%
Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in commercial loan	92,123	106,779
Total percentage of recorded investment in commercial loan	3.40%	4.10%
Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in commercial loan	50,927	56,175
Total percentage of recorded investment in commercial loan	1.80%	2.20%
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in commercial loan	1,636,383	1,607,756
Total percentage of recorded investment in commercial loan	100.00%	100.00%
Commercial Real Estate [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in commercial loan	1,563,882	1,519,720
Total percentage of recorded investment in commercial loan	95.60%	94.50%
Commercial Real Estate [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in commercial loan	45,275	57,073
Total percentage of recorded investment in commercial loan	2.80%	3.60%
Commercial Real Estate [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in commercial loan	27,226	30,963
Total percentage of recorded investment in commercial loan	1.60%	1.90%
Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in commercial loan	922,191	842,449
Total percentage of recorded investment in commercial loan	100.00%	100.00%
Commercial and Industrial [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in commercial loan	872,686	792,029
Total percentage of recorded investment in commercial loan	94.60%	94.00%
Commercial and Industrial [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in commercial loan	33,966	34,085
Total percentage of recorded investment in commercial loan	3.70%	4.10%
Commercial and Industrial [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in commercial loan	15,539	16,335
Total percentage of recorded investment in commercial loan	1.70%	1.90%
Commercial Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in commercial loan	188,311	143,675
Total percentage of recorded investment in commercial loan	100.00%	100.00%
Commercial Construction [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in commercial loan	167,267	119,177
Total percentage of recorded investment in commercial loan	88.80%	82.90%
Commercial Construction [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in commercial loan	12,882	15,621
Total percentage of recorded investment in commercial loan	6.80%	10.90%
Commercial Construction [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in commercial loan	$ 8,162	$ 8,877
Total percentage of recorded investment in commercial loan	4.40%	6.20%

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Employee Benefits - Additional Information (Detail)	6 Months Ended
	Jun. 30, 2014
Compensation and Retirement Disclosure [Abstract]
Number of consecutive years of employee's compensation	5 years
Number of total years of employee's compensation	10 years
Expected long-term rate of return on plan assets	8.00%

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Derivative Instruments and Hedging Activities - Amount of Gain or Loss Recognized in Income on Derivatives (Detail) (Not Designated as Hedging Instruments [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Derivative Instruments, Gain (Loss) [Line Items]
Total Derivatives Gain (Loss)	$ 124	$ 88	$ 95	$ (243)
Interest Rate Swap Contracts-Commercial Loans [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Total Derivatives Gain (Loss)	(11)	(27)	(19)	(156)
Interest Rate Lock Commitments - Mortgage Loans [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Total Derivatives Gain (Loss)	199	(266)	207	(492)
Forward Sale Contracts-Mortgage Loans [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Total Derivatives Gain (Loss)	$ (64)	$ 381	$ (93)	$ 405

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Loans and Loans Held for Sale - Restructured Loans for Periods Presented (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended					12 Months Ended	6 Months Ended	12 Months Ended	6 Months Ended	12 Months Ended	6 Months Ended	12 Months Ended	6 Months Ended	12 Months Ended	6 Months Ended	12 Months Ended	6 Months Ended	12 Months Ended	6 Months Ended	12 Months Ended	6 Months Ended	12 Months Ended	6 Months Ended	12 Months Ended	6 Months Ended	12 Months Ended	6 Months Ended	12 Months Ended	6 Months Ended	12 Months Ended	6 Months Ended	12 Months Ended	6 Months Ended	12 Months Ended	6 Months Ended	12 Months Ended	6 Months Ended	12 Months Ended	6 Months Ended	12 Months Ended	6 Months Ended	12 Months Ended	6 Months Ended	12 Months Ended	6 Months Ended	12 Months Ended
	Jun. 30, 2014		Jun. 30, 2013		Jun. 30, 2014		Jun. 30, 2013		Jun. 30, 2014 Accruing TDRs [Member]	Dec. 31, 2013 Accruing TDRs [Member]	Jun. 30, 2014 Accruing TDRs [Member] Commercial Real Estate [Member]	Dec. 31, 2013 Accruing TDRs [Member] Commercial Real Estate [Member]	Jun. 30, 2014 Accruing TDRs [Member] Commercial and Industrial [Member]	Dec. 31, 2013 Accruing TDRs [Member] Commercial and Industrial [Member]	Jun. 30, 2014 Accruing TDRs [Member] Commercial Construction [Member]	Dec. 31, 2013 Accruing TDRs [Member] Commercial Construction [Member]	Jun. 30, 2014 Accruing TDRs [Member] Residential Mortgage [Member]	Dec. 31, 2013 Accruing TDRs [Member] Residential Mortgage [Member]	Jun. 30, 2014 Accruing TDRs [Member] Home Equity [Member]	Dec. 31, 2013 Accruing TDRs [Member] Home Equity [Member]	Jun. 30, 2014 Accruing TDRs [Member] Installment and Other Consumer [Member]	Dec. 31, 2013 Accruing TDRs [Member] Installment and Other Consumer [Member]	Jun. 30, 2014 Nonaccruing TDRs [Member]	Dec. 31, 2013 Nonaccruing TDRs [Member]	Jun. 30, 2014 Nonaccruing TDRs [Member] Commercial Real Estate [Member]	Dec. 31, 2013 Nonaccruing TDRs [Member] Commercial Real Estate [Member]	Jun. 30, 2014 Nonaccruing TDRs [Member] Commercial and Industrial [Member]	Dec. 31, 2013 Nonaccruing TDRs [Member] Commercial and Industrial [Member]	Jun. 30, 2014 Nonaccruing TDRs [Member] Commercial Construction [Member]	Dec. 31, 2013 Nonaccruing TDRs [Member] Commercial Construction [Member]	Jun. 30, 2014 Nonaccruing TDRs [Member] Residential Mortgage [Member]	Dec. 31, 2013 Nonaccruing TDRs [Member] Residential Mortgage [Member]	Jun. 30, 2014 Nonaccruing TDRs [Member] Home Equity [Member]	Dec. 31, 2013 Nonaccruing TDRs [Member] Home Equity [Member]	Jun. 30, 2014 Nonaccruing TDRs [Member] Installment and Other Consumer [Member]	Dec. 31, 2013 Nonaccruing TDRs [Member] Installment and Other Consumer [Member]	Jun. 30, 2014 Total TDRs [Member]	Dec. 31, 2013 Total TDRs [Member]	Jun. 30, 2014 Total TDRs [Member] Commercial Real Estate [Member]	Dec. 31, 2013 Total TDRs [Member] Commercial Real Estate [Member]	Jun. 30, 2014 Total TDRs [Member] Commercial and Industrial [Member]	Dec. 31, 2013 Total TDRs [Member] Commercial and Industrial [Member]	Jun. 30, 2014 Total TDRs [Member] Commercial Construction [Member]	Dec. 31, 2013 Total TDRs [Member] Commercial Construction [Member]	Jun. 30, 2014 Total TDRs [Member] Residential Mortgage [Member]	Dec. 31, 2013 Total TDRs [Member] Residential Mortgage [Member]	Jun. 30, 2014 Total TDRs [Member] Home Equity [Member]	Dec. 31, 2013 Total TDRs [Member] Home Equity [Member]	Jun. 30, 2014 Total TDRs [Member] Installment and Other Consumer [Member]	Dec. 31, 2013 Total TDRs [Member] Installment and Other Consumer [Member]
Financing Receivable, Modifications [Line Items]
Restructured loans	$ 229	[1]	$ 5,694	[1]	$ 2,019	[1]	$ 8,278	[1]	$ 37,120	$ 39,229	$ 16,934	$ 19,711	$ 7,390	$ 7,521	$ 6,310	$ 5,338	$ 2,647	$ 2,581	$ 3,712	$ 3,924	$ 127	$ 154	$ 5,241	$ 10,067	$ 1,431	$ 3,898	$ 1,170	$ 1,884	$ 1,869	$ 2,708	$ 645	$ 1,356	$ 125	$ 218	$ 1	$ 3	$ 42,361	$ 49,296	$ 18,365	$ 23,609	$ 8,560	$ 9,405	$ 8,179	$ 8,046	$ 3,292	$ 3,937	$ 3,837	$ 4,142	$ 128	$ 157

[1] Excludes loans that were fully paid off or fully charged-off by period end. The pre-modification balance represents the balance outstanding prior to modification. The post-modification balance represents the outstanding balance at period end.

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Earnings Per Share

6 Months Ended

Jun. 30, 2014

Earnings Per Share [Abstract]

Earnings Per Share

EARNINGS PER SHARE

The following table reconciles the numerators and denominators of basic earnings per share with that of diluted earnings per share for the periods presented:

	Three Months Ended June 30,				Six Months Ended June 30,
(dollars in thousands, except shares and per share data)	2014		2013		2014		2013
Numerator for Earnings per Share—Basic:
Net income	$	14,720	$	14,103	$	28,753	$	26,433
Less: Income allocated to participating shares	29		36		64		81
Net Income Allocated to Shareholders	$	14,691	$	14,067	$	28,689	$	26,352
Numerator for Earnings per Share—Diluted:
Net income	14,720		14,103		$	28,753	$	26,433
Net Income Available to Shareholders	$	14,720	$	14,103	$	28,753	$	26,433
Denominators for Earnings per Share:
Weighted Average Shares Outstanding—Basic	29,684,300		29,654,018		29,672,611		29,637,825
Add: Dilutive potential shares	16,894		23,858		27,559		41,319
Denominator for Treasury Stock Method—Diluted	29,701,194		29,677,876		29,700,170		29,679,144
Weighted Average Shares Outstanding—Basic	29,684,300		29,654,018		29,672,611		29,637,825
Add: Average participating shares outstanding	58,973		74,994		66,563		91,530
Denominator for Two-Class Method—Diluted	29,743,273		29,729,012		29,739,174		29,729,355
Earnings per share—basic	$	0.49	$	0.47	$	0.97	$	0.89
Earnings per share—diluted	$	0.49	$	0.47	$	0.97	$	0.89
Warrants considered anti-dilutive excluded from dilutive potential shares	517,012		517,012		517,012		517,012
Stock options considered anti-dilutive excluded from dilutive potential shares	428,493		629,570		428,676		642,499
Restricted stock considered anti-dilutive excluded from dilutive potential shares	42,079		51,136		39,005		50,211

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Borrowings - Additional Information (Detail) (USD $)	Jun. 30, 2014	Dec. 31, 2013
Long Term And Short Term Debt [Line Items]
Total long-term debt outstanding at a fixed rate	$ 17,300,000
Total long-term debt outstanding at a variable rate	48,700,000
Capital lease	200,000
Total borrowings	205,400,000	161,600,000
Long-term borrowings	20,400,000
Short-term borrowings	185,000,000
Federal Home Loan Bank Advances [Member]
Long Term And Short Term Debt [Line Items]
Maximum borrowing capacity	1,600,000,000
Remaining borrowing capacity	$ 1,400,000,000

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Securities Available-for-sale - Unrealized Gains (Losses) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Investments, Debt and Equity Securities [Abstract]
Total unrealized gains/(losses) on securities available for sale, Gross Unrealized Gains	$ 11,164	$ 6,802
Total unrealized gains/(losses) on securities available for sale, Gross Unrealized Losses	(2,302)	(7,776)
Total unrealized gains/(losses) on securities available for sale, Net Unrealized Gains/(Losses)	8,862	(974)
Income Tax expense/(benefit), Gross Unrealized Gains	3,907	2,381
Income Tax expense/(benefit), Gross Unrealized Losses	(806)	(2,722)
Income Tax expense/(benefit), Net Unrealized Gains/ (Losses)	3,101	(341)
Net unrealized gains/(losses), net of tax included in accumulated other comprehensive income/(loss), Gross Unrealized Gains	7,257	4,421
Net unrealized gains/(losses), net of tax included in accumulated other comprehensive income/(loss), Gross Unrealized Losses	(1,496)	(5,054)
Net unrealized gains/(losses), net of tax included in accumulated other comprehensive income/(loss), Net Unrealized Gains/ (Losses)	$ 5,761	$ (633)

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Other Comprehensive Income (Tables)

6 Months Ended

Jun. 30, 2014

Equity [Abstract]

Other Comprehensive Income

The following table presents the tax effects of the components of other comprehensive income (loss) for the periods presented:

	Three Months Ended June 30, 2014									Three Months Ended June 30, 2013
(dollars in thousands)	Pre-Tax Amount			Tax (Expense) Benefit			Net of Tax Amount			Pre-Tax Amount			Tax (Expense) Benefit			Net of Tax Amount
Change in unrealized gains/losses on securities available-for-sale	$	5,401		$	(1,891	)	$	3,510		$	(12,061	)	$	4,221		$	(7,840	)
Reclassification adjustment for net (gains)/losses on securities available-for-sale included in net income (1)	(40		)	15			(25		)	—			—			—
Adjustment to funded status of employee benefit plans	211			(74		)	137			598			(210		)	388
Other Comprehensive Income (Loss)	$	5,572		$	(1,950	)	$	3,622		$	(11,463	)	$	4,011		$	(7,452	)
(1) Reclassification adjustments are comprised of realized security gains. The gains have been reclassified out of accumulated other comprehensive income (loss) and have affected certain lines in the Consolidated Statements of Comprehensive Income as follows; the pre-tax amount is included in securities gains-net, the tax expense amount is included in the provision for income taxes and the net of tax amount is included in net income.
	Six Months Ended June 30, 2014									Six Months Ended June 30, 2013
(dollars in thousands)	Pre-Tax Amount			Tax (Expense) Benefit			Net of Tax Amount			Pre-Tax Amount			Tax (Expense) Benefit			Net of Tax Amount
Change in unrealized gains/losses on securities available-for-sale	$	9,876		$	(3,457	)	$	6,419		$	(13,829	)	$	4,840		$	(8,989	)
Reclassification adjustment for net (gains)/losses on securities available-for-sale included in net income (1)	(41		)	15			(26		)	(2		)	1			(1		)
Adjustment to funded status of employee benefit plans	423			(148		)	275			1,196			(419		)	777
Other Comprehensive Income (Loss)	$	10,258		$	(3,590	)	$	6,668		$	(12,635	)	$	4,422		$	(8,213	)
(1) Reclassification adjustments are comprised of realized security gains. The gains have been reclassified out of accumulated other comprehensive income and have affected certain lines in the consolidated statement of comprehensive income as follows; the pre-tax amount is included in securities gains-net, the tax expense amount is included in the provision for income taxes and the net of tax amount is included in net income.

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Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2014

Commitments and Contingencies Disclosure [Abstract]

Commitments and Letters of Credit

The following table sets forth the commitments and letters of credit as of the dates presented:

(dollars in thousands)	June 30, 2014		December 31, 2013
Commitments to extend credit	$	1,117,511	$	1,038,529
Standby letters of credit	78,427		78,639
Total	$	1,195,938	$	1,117,168

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Allowance for Loan Losses - Summary of Allowance for Loan Losses (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance at beginning of period	$ 46,616	$ 45,936	$ 46,255	$ 46,484
Charge-offs	(3,746)	(2,929)	(4,721)	(7,063)
Recoveries	4,844	2,075	5,891	3,354
Net (Charge-offs)/ Recoveries	1,098	(854)	1,170	(3,709)
Provision for loan losses	(1,134)	1,023	(845)	3,330
Balance at End of Period	46,580	46,105	46,580	46,105
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance at beginning of period	19,880	24,442	18,921	25,246
Charge-offs	(1,737)	(1,170)	(2,004)	(2,809)
Recoveries	1,294	1,572	1,834	2,322
Net (Charge-offs)/ Recoveries	(443)	402	(170)	(487)
Provision for loan losses	1,296	(1,360)	1,982	(1,275)
Balance at End of Period	20,733	23,484	20,733	23,484
Commercial and Industrial [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance at beginning of period	13,979	8,676	14,433	7,759
Charge-offs	(743)	(563)	(1,033)	(1,923)
Recoveries	2,936	190	3,249	290
Net (Charge-offs)/ Recoveries	2,193	(373)	2,216	(1,633)
Provision for loan losses	(3,168)	820	(3,645)	2,997
Balance at End of Period	13,004	9,123	13,004	9,123
Commercial Construction [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance at beginning of period	5,183	6,603	5,374	7,500
Charge-offs	(664)	(54)	(692)	(443)
Recoveries	324	2	375	55
Net (Charge-offs)/ Recoveries	(340)	(52)	(317)	(388)
Provision for loan losses	(84)	(739)	(298)	(1,300)
Balance at End of Period	4,759	5,812	4,759	5,812
Consumer Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance at beginning of period	6,408	5,259	6,362	5,058
Charge-offs	(425)	(743)	(547)	(1,237)
Recoveries	164	225	223	508
Net (Charge-offs)/ Recoveries	(261)	(518)	(324)	(729)
Provision for loan losses	558	1,914	667	2,326
Balance at End of Period	6,705	6,655	6,705	6,655
Other Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance at beginning of period	1,166	956	1,165	921
Charge-offs	(177)	(399)	(445)	(651)
Recoveries	126	86	210	179
Net (Charge-offs)/ Recoveries	(51)	(313)	(235)	(472)
Provision for loan losses	264	388	449	582
Balance at End of Period	$ 1,379	$ 1,031	$ 1,379	$ 1,031

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Securities Available-for-Sale - Amortized Cost and Fair Value of Available-for-Sale Securities (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 579,626	$ 510,399
Fair Value	588,488	509,425
Obligations of U.S. Government Corporations and Agencies, and Obligations of States and Political Subdivisions [Member]
Schedule of Available-for-sale Securities [Line Items]
Due in one year or less, Amortized Cost	24,049
Due after one year through five years, Amortized Cost	182,816
Due after five years through ten years, Amortized Cost	98,068
Due after ten years, Amortized Cost	88,329
Available-for-sale Securities, Debt Maturities, Amortized Cost	393,262
Due in one year or less, Fair Value	24,289
Due after one year through five years, Fair Value	184,074
Due after five years through ten years, Fair Value	99,420
Due after ten years, Fair Value	90,778
Fair Value, Debt securities	398,561
Collateralized Mortgage Obligations of U.S. Government Corporations and Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	93,787	63,776
Fair Value	94,604	63,774
Residential Mortgage-Backed Securities of U.S. Government Corporations and Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	44,900	47,934
Fair Value	46,389	48,669
Commercial Mortgage-Backed Securities of U.S. Government Corporations and Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	40,098	40,357
Fair Value	39,920	39,052
Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	572,047	502,820
Fair Value	579,474	500,510
Marketable Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	7,579	7,579
Fair Value	$ 9,014	$ 8,915

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Employee Benefits (Tables)

6 Months Ended

Jun. 30, 2014

Compensation and Retirement Disclosure [Abstract]

Components of Net Periodic Pension Cost and Other Changes in Plan Assets and Benefit

The following table summarizes the components of net periodic pension cost for the periods presented:

	Three Months Ended June 30,						Six Months Ended June 30,
(dollars in thousands)	2014			2013			2014			2013
Components of Net Periodic Pension Cost
Service cost—benefits earned during the period	$	631		$	708		$	1,262		$	1,416
Interest cost on projected benefit obligation	1,106			996			2,212			1,992
Expected return on plan assets	(1,735		)	(1,565		)	(3,470		)	(3,130		)
Amortization of prior service cost (credit)	(35		)	(34		)	(70		)	(68		)
Recognized net actuarial loss	209			588			418			1,176
Net Periodic Pension Expense	$	176		$	693		$	352		$	1,386

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Segments (Tables)

6 Months Ended

Jun. 30, 2014

Segment Reporting [Abstract]

Total Assets by Reportable Operating Segment

The following table represents total assets by reportable operating segment as of the dates presented:

(dollars in thousands)	June 30, 2014		December 31, 2013
Community Banking	$	4,778,233	$	4,524,939
Insurance	7,715		6,926
Wealth Management	2,082		1,325
Total Assets	$	4,788,030	$	4,533,190

Financial Information of Segments

The information provided under the caption “Eliminations” represents operations not considered to be reportable segments and/or general operating expenses and eliminations and adjustments, which are necessary for purposes of reconciling to the Consolidated Financial Statements.

	Three Months Ended June 30, 2014
(dollars in thousands)	Community Banking			Insurance		Wealth Management		Eliminations			Consolidated
Interest income	$	39,845		$	—	$	136	$	(109	)	$	39,872
Interest expense	3,415			—		—		(398		)	3,017
Net interest income	36,430			—		136		289			36,855
Provision for loan losses	(1,134		)	—		—		—			(1,134		)
Noninterest income	7,522			1,245		2,828		176			11,771
Noninterest expense	25,092			1,044		2,442		465			29,043
Depreciation expense	805			13		7		—			825
Amortization of intangible assets	274			13		10		—			297
Provision for income taxes	4,637			61		177		—			4,875
Net Income	$	14,278		$	114	$	328	$	—		$	14,720

	Three Months Ended June 30, 2013
(dollars in thousands)	Community Banking			Insurance		Wealth Management		Eliminations			Consolidated
Interest income	$	38,505		$	—	$	135	$	(87	)	$	38,553
Interest expense	4,663			—		—		(706		)	3,957
Net interest income	33,842			—		135		619			34,596
Provision for loan losses	1,023			—		—		—			1,023
Noninterest income	8,467			1,349		2,812		239			12,867
Noninterest expense	21,786			1,105		2,389		1,797			27,077
Depreciation expense	876			12		8		—			896
Amortization of intangible assets	387			13		13		—			413
Provision (benefit) for income taxes	4,592			77		221		(939		)	3,951
Net Income	$	13,645		$	142	$	316	$	—		$	14,103
	Six Months Ended June 30, 2014
(dollars in thousands)	Community Banking			Insurance		Wealth Management		Eliminations			Consolidated
Interest income	$	78,475		$	—	$	310	$	(248	)	$	78,537
Interest expense	6,897			—		—		(806		)	6,091
Net interest income	71,578			—		310		558			72,446
Provision for loan losses	(845		)	—		—		—			(845		)
Noninterest income	14,375			2,766		5,764		282			23,187
Noninterest expense	49,066			2,199		4,716		840			56,821
Depreciation expense	1,607			25		13		—			1,645
Amortization of intangible assets	566			25		22		—			613
Provision for income taxes	8,002			181		463		—			8,646
Net Income	$	27,557		$	336	$	860	$	—		$	28,753
	Six Months Ended June 30, 2013
(dollars in thousands)	Community Banking			Insurance		Wealth Management		Eliminations			Consolidated
Interest income	$	76,194		$	1	$	273	$	(72	)	$	76,396
Interest expense	9,454			—		—		(1,323		)	8,131
Net interest income	66,740			1		273		1,251			68,265
Provision for loan losses	3,330			—		—		—			3,330
Noninterest income	18,823			2,947		5,386		517			27,673
Noninterest expense	46,427			2,552		4,878		3,468			57,325
Depreciation expense	1,795			22		16		—			1,833
Amortization of intangible assets	792			26		26		—			844
Provision (benefit) for income taxes	7,438			122		313		(1,700		)	6,173
Net Income	$	25,781		$	226	$	426	$	—		$	26,433

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Basis of Presentation

6 Months Ended

Jun. 30, 2014

Accounting Policies [Abstract]

Basis of Presentation

BASIS OF PRESENTATION

Principles of Consolidation

The interim Consolidated Financial Statements include the accounts of S&T Bancorp, Inc., or S&T, and its wholly owned subsidiaries. All significant intercompany transactions have been eliminated in consolidation. Investments of 20 percent to 50 percent of the outstanding common stock of investees are accounted for using the equity method of accounting.

Basis of Presentation

The accompanying unaudited interim Consolidated Financial Statements of S&T have been prepared in accordance with generally accepted accounting principles, or GAAP, in the United States for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements and should be read in conjunction with our annual report on Form 10-K for the year ended December 31, 2013, filed with the Securities and Exchange Commission, or SEC, on February 21, 2014. In the opinion of management, the accompanying interim financial information reflects all adjustments, including normal recurring adjustments, necessary to present fairly our financial position and the results of operations for each of the interim periods presented. Results of operations for interim periods are not necessarily indicative of the results of operations that may be expected for a full year or any future period.

Reclassification

Certain amounts in the prior periods’ financial statements and footnotes have been reclassified to conform to the current period’s presentation. The reclassifications had no significant effect on our results of operations or financial condition.

Use of Estimates

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements. Actual results could differ from those estimates.

Recently Adopted Accounting Standards Updates, or ASU

Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Tax Credit Carry forward Exists

In July 2013, the Financial Accounting Standards Board (FASB) issued ASU No. 2013-11, Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Tax Credit Carry forward Exists. The ASU requires that entities should present an unrecognized tax benefit as a reduction of the deferred tax asset for a net operating loss, or NOL, or similar tax loss or tax credit carry forward rather than as a liability when the uncertain tax position would reduce the NOL or other carry forward under the tax law. The new standard is effective for fiscal years, and interim periods within those years, beginning after December 15, 2013, and should be applied prospectively to all unrecognized tax benefits that exist at the effective date. Retrospective application is permitted. The adoption of this ASU had no impact on our results of operations or financial position.

Obligations Resulting from Joint and Several Liability Arrangements for Which the Total Amount of the Obligation is Fixed at the Reporting Date

In February 2013, the FASB issued ASU No. 2013-04, Obligations Resulting from Joint and Several Liability Arrangements for Which the Total Amount of the Obligation is Fixed at the Reporting Date. The ASU requires the measurement of obligations resulting from joint and several liability arrangements for which the total amount of the obligation is fixed at the reporting date as the sum of the amount the reporting entity agreed to pay on the basis of its arrangement with its co-obligors as well as any additional amount that the entity expects to pay on behalf of its co-obligors. The new standard is effective retrospectively for fiscal years and interim periods within those years, beginning after December 15, 2013, and early adoption is permitted. The adoption of this ASU had no impact on our results of operations or financial position.

Recently Issued Accounting Standards Updates not yet Adopted

Share-Based Payment Awards with Performance Targets

In June 2014, the FASB issued ASU No. 2014-12, Share-Based Payment Awards with Performance Targets. The main provisions of ASU 2014-12 require that a performance target included in a share-based payment award that affects vesting and that could be achieved after the requisite service period be treated as a performance condition. Therefore, under the existing stock compensation guidance in Topic 718, the performance target should not be reflected in estimating the grant-date fair value of the award. The standard is effective for annual periods and interim periods beginning after December 15, 2015. We do not expect that this ASU will have a material impact on our results of operations or financial position.

Repurchase-To-Maturity Transactions, Repurchase Financings and New Disclosures

In June 2014, the FASB issued ASU No. 2014-11, Repurchase-to-Maturity Transactions, Repurchase Financings, and New Disclosures to change the accounting for repurchase-to-maturity transactions and certain linked repurchase financings. This will result in accounting for both types of arrangements as secured borrowings on the balance sheet and require new disclosures to (i) increase transparency about the types of collateral pledged in secured borrowing transactions and (ii) enable users to better understand transactions in which the transferor retains substantially all of the exposure to the economic return on the transferred financial asset throughout the term of the transaction. The disclosure for repurchase agreements, securities lending transactions, and repurchase-to-maturity transactions accounted for as secured borrowings is required to be presented for annual periods beginning after December 15, 2014, and for interim periods beginning after March 15, 2015. All other accounting and disclosure amendments in the ASU are effective for the first interim or annual period beginning after December 15, 2014. Earlier application for a public business entity is prohibited. We do not expect that this ASU will have a material impact on our results of operations or financial position.

Revenues from Contracts with Customers

In May 2014, the FASB issued ASU No. 2014-09, Revenues from Contracts with Customers. The core principle of the guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods and services. The standard is required to be adopted by public business entities in annual periods beginning on or after December 15, 2016. The provisions do not apply to lease contracts, insurance contracts, financial instruments and other contractual rights or obligations (e.g. receivables, debt and equity securities, liabilities, debt, derivatives transfers, and servicing, etc.), guarantees, or non-monetary exchanges between entities. We are currently evaluating the impact of the adoption of this pronouncement on our consolidated financial statements.

Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity

In April 2014, the FASB issued ASU No. 2014-08, Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity, which changes the criteria for determining which disposals can be presented as discontinued operations and modifies related disclosure requirements. The guidance applies to all entities that dispose of components. It will significantly change current practices for assessing discontinued operations and affect an entity’s income and earnings per share from continuing operations. An entity is required to reclassify assets and liabilities of a discontinued operation that are classified as held for sale or disposed of in the current period for all comparative periods presented. The ASU requires that an entity present in the statement of cash flows or disclose in a note either total operating and investing cash flows for discontinued operations, or depreciation, amortization, capital expenditures and significant operating and investing noncash items related to discontinued operations. Additional disclosures are required when an entity retains significant continuing involvement with a discontinued operation after its disposal, including the amount of cash flows to and from a discontinued operation. The new standard applies prospectively after the effective date of December 15, 2014, and early adoption is permitted. We do not expect that this ASU will have a material impact on our results of operations or financial position.

Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure

In January 2014, the FASB issued ASU No. 2014-04, Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure. The ASU clarifies that an in substance repossession or foreclosure has occurred and a creditor is considered to have received physical possession of residential real estate property collateralizing a consumer mortgage loan, upon either the creditor obtaining legal title to the residential real estate property upon completion of a foreclosure or the borrower conveying all interest in the residential real estate property to the creditor to satisfy that loan through completion of a deed in lieu of foreclosure. Interim and annual disclosure is required of both the amount of foreclosed residential real estate property held by the creditor and the recorded investment in consumer mortgage loans collateralized by residential real estate property that are in the process of foreclosure. The new standard is effective using either the modified retrospective transition method or a prospective transition method for fiscal years and interim periods within those years, beginning after December 15, 2014, and early adoption is permitted. We do not expect that this ASU will have a material impact on our results of operations or financial position.

Accounting for Investments in Qualified Affordable Housing Projects

In January 2014, the FASB issued ASU No. 2014-01, Accounting for Investments in Qualified Affordable Housing Projects. The ASU permits reporting entities to make an accounting policy election to account for investments in qualified affordable housing projects using the proportional amortization method if certain conditions are met. The proportional amortization method permits the amortization of the initial cost of the investment in proportion to the tax credits and other tax benefits received, and recognizes the net investment performance in the income statement as a component of income tax expense (benefit). The new standard is effective retrospectively for fiscal years and interim periods within those years, beginning after December 15, 2014, and early adoption is permitted. We do not expect that this ASU will have a material impact on our results of operations or financial position.

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Basis of Presentation - Additional Information (Detail)	Jun. 30, 2014
Minimum [Member]
Summary Of Significant Accounting Policies [Line Items]
Percentage of outstanding common stock of investees accounted for using equity method of accounting	20.00%
Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Percentage of outstanding common stock of investees accounted for using equity method of accounting	50.00%

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Securities Available-for-Sale - Schedule of Gross and Net Realized Gains and Losses on Sale of Securities (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Investments, Debt and Equity Securities [Abstract]
Gross realized gains	$ 40	$ 0	$ 41	$ 2
Gross realized losses	0	0	0	0
Net Realized Gains	$ 40	$ 0	$ 41	$ 2

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Allowance for Loan Losses - Additional Information (Detail) (USD $)	6 Months Ended
	Jun. 30, 2014	Dec. 31, 2013
Financing Receivable, Impaired [Line Items]
Evaluation for impairment of substandard and nonaccrual commercial loans	$ 500,000.0
Commercial real estate impaired loans fair value	34,700,000
Total amount of all impaired loans	46,209,000	52,856,000
Commercial real estate impaired loans needing current appraisals	600,000
Minimum [Member]
Financing Receivable, Impaired [Line Items]
Loans considered nonperforming (in days)	90 days
Commercial Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Commercial real estate impaired loans fair value	21,200,000
Percentage of total impaired loans comprised	46.00%
Total amount of all impaired loans	21,228,000	26,968,000
Charge offs on loans	$ 7,900,000

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Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
ASSETS
Cash and due from banks, including interest-bearing deposits of $54,575 and $53,594 at June 30, 2014 and December 31, 2013, respectively	$ 130,235	$ 108,356
Securities available-for-sale, at fair value	588,488	509,425
Loans held for sale	3,102	2,136
Portfolio loans, net of unearned income	3,725,079	3,566,199
Allowance for loan losses	(46,580)	(46,255)
Portfolio loans, net	3,678,499	3,519,944
Bank owned life insurance	61,348	60,480
Premises and equipment, net	36,665	36,615
Federal Home Loan Bank and other restricted stock, at cost	15,818	13,629
Goodwill	175,820	175,820
Other intangible assets, net	3,146	3,759
Other assets	94,909	103,026
Total Assets	4,788,030	4,533,190
LIABILITIES
Noninterest-bearing demand	1,089,999	992,779
Interest-bearing demand	307,897	312,790
Money market	301,719	281,403
Savings	1,024,050	994,805
Certificates of deposit	1,141,581	1,090,531
Total Deposits	3,865,246	3,672,308
Securities sold under repurchase agreements	25,269	33,847
Short-term borrowings	185,000	140,000
Long-term borrowings	20,636	21,810
Junior subordinated debt securities	45,619	45,619
Other liabilities	49,073	48,300
Total Liabilities	4,190,843	3,961,884
SHAREHOLDERS' EQUITY
Common stock ($2.50 par value) Authorized—50,000,000 shares Issued—31,197,365 shares at June 30, 2014 and December 31, 2013 Outstanding—29,797,204 shares at June 30, 2014 and 29,737,725 shares at December 31, 2013	77,993	77,993
Additional paid-in capital	78,570	78,140
Retained earnings	485,277	468,158
Accumulated other comprehensive income (loss)	(6,026)	(12,694)
Treasury stock 1,400,161 shares at June 30, 2014 and 1,459,640 shares at December 31, 2013, (at cost)	(38,627)	(40,291)
Total Shareholders’ Equity	597,187	571,306
Total Liabilities and Shareholders’ Equity	$ 4,788,030	$ 4,533,190

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Loans and Loans Held for Sale - Additional Information (Detail) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014 TDRs	Jun. 30, 2013 TDRs	Jun. 30, 2014 TDRs Property SecurityLoan	Jun. 30, 2013 TDRs	Dec. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unearned income on loans	$ 1,800,000		$ 1,800,000		$ 1,300,000
Percentage of commercial loans in total portfolio loans	74.00%		74.00%		73.00%
Maximum concentration of commercial real estate and commercial construction portfolio in loans (in excess of)	9.00%		9.00%		9.00%
Number of TDRs returned back to accruing status	4	0	5	1
Financial receivable trouble debt restructuring reclassified to accruing trouble debt restructuring status	1,400,000		1,500,000	200,000
Number of loans modified not considered to be troubled debt restructuring			3
Commitment to lend additional funds on TDRs	0		0
Minimum period of loan payment defaults following restructure for TDRs to be in default			90 days
Other real estate owned properties			8
Commercial Real Estate and Commercial Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Combined percentage of commercial real estate and commercial construction in total commercial loans	66.00%		66.00%		68.00%
Combined percentage of commercial real estate and commercial construction in total portfolio loans	49.00%		49.00%		49.00%
Out-of-state exposure of combined portfolio	26.00%		26.00%		23.00%
Percentage of total loans out-of-state	13.00%		13.00%		11.00%
Out-of-state exposure of combined portfolio excluding contiguous states	7.20%		7.20%		7.90%
Percentage of total loans out-of-state excluding contiguous states	3.60%		3.60%		3.90%
Commercial and Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans modified not considered to be troubled debt restructuring			400,000
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loans modified not considered to be troubled debt restructuring	2		2
Loans modified not considered to be troubled debt restructuring	$ 1,200,000		$ 1,200,000

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Consolidated Statements of Changes in Shareholders' Equity (Parenthetical) (USD $)	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Dividends declared per share (in dollars per share)	$ 0.33	$ 0.30
Treasury stock issued for restricted awards, net of forfeitures	80,455	22,189
Forfeitures of restricted stock, shares	20,976	16,093
Retained Earnings [Member]
Dividends declared per share (in dollars per share)	$ 0.33	$ 0.30
Treasury stock issued for restricted awards, net of forfeitures	80,455	22,189
Forfeitures of restricted stock, shares	20,976	16,093
Treasury Stock [Member]
Treasury stock issued for restricted awards, net of forfeitures	80,455	22,189
Forfeitures of restricted stock, shares	20,976	16,093

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Derivative Instruments and Hedging Activities - Value of Derivative Assets and Derivative Liabilities (Detail) (Not Designated as Hedging Instruments [Member], USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Derivatives not Designated as Hedging Instruments
Fair value, Derivatives (included in Other Assets)	$ 14,082	$ 13,698
Fair value, Derivatives (included in Other Liabilities)	14,050	13,647
Other Assets [Member] | Interest Rate Swap Contracts-Commercial Loans [Member]
Derivatives not Designated as Hedging Instruments
Fair value, Derivatives (included in Other Assets)	14,082	13,698
Notional amount, Derivatives (included in Other Assets)	245,865	261,754
Collateral posted, Derivatives (included in Other Assets)	0	0
Other Assets [Member] | Interest Rate Lock Commitments - Mortgage Loans [Member]
Derivatives not Designated as Hedging Instruments
Fair value, Derivatives (included in Other Assets)	292	85
Notional amount, Derivatives (included in Other Assets)	9,594	3,989
Other Assets [Member] | Forward Sale Contracts-Mortgage Loans [Member]
Derivatives not Designated as Hedging Instruments
Fair value, Derivatives (included in Other Assets)	0	34
Notional amount, Derivatives (included in Other Assets)	0	5,250
Other Liabilities [Member] | Interest Rate Swap Contracts-Commercial Loans [Member]
Derivatives not Designated as Hedging Instruments
Collateral posted, Derivatives (included in Other Assets)	11,559	12,611
Fair value, Derivatives (included in Other Liabilities)	14,050	13,647
Notional amount, Derivatives (included in Other Liabilities)	245,865	261,754
Other Liabilities [Member] | Interest Rate Lock Commitments - Mortgage Loans [Member]
Derivatives not Designated as Hedging Instruments
Fair value, Derivatives (included in Other Liabilities)	0	0
Notional amount, Derivatives (included in Other Liabilities)	0	0
Other Liabilities [Member] | Forward Sale Contracts-Mortgage Loans [Member]
Derivatives not Designated as Hedging Instruments
Fair value, Derivatives (included in Other Liabilities)	59	0
Notional amount, Derivatives (included in Other Liabilities)	$ 7,210	$ 0

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Fair Value Measurements - Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
ASSETS
Total securities available-for-sale	$ 588,488	$ 509,425
Obligations of U.S. Government Corporations and Agencies [Member]
ASSETS
Total securities available-for-sale	270,248	234,751
Collateralized Mortgage Obligations of U.S. Government Corporations and Agencies [Member]
ASSETS
Total securities available-for-sale	94,604	63,774
Residential Mortgage-Backed Securities of U.S. Government Corporations and Agencies [Member]
ASSETS
Total securities available-for-sale	46,389	48,669
Commercial Mortgage-Backed Securities of U.S. Government Corporations and Agencies [Member]
ASSETS
Total securities available-for-sale	39,920	39,052
Obligations of States and Political Subdivisions [Member]
ASSETS
Total securities available-for-sale	128,313	114,264
Marketable Equity Securities [Member]
ASSETS
Total securities available-for-sale	9,014	8,915
Fair Value Measurements, Recurring [Member]
ASSETS
Total securities available-for-sale	588,488	509,425
Trading securities held in a Rabbi Trust	3,117	2,864
Total securities	591,605	512,289
Total Assets	605,979	526,106
LIABILITIES
Total Liabilities	14,109	13,647
Fair Value Measurements, Recurring [Member] | Obligations of U.S. Government Corporations and Agencies [Member]
ASSETS
Total securities available-for-sale	270,248	234,751
Fair Value Measurements, Recurring [Member] | Collateralized Mortgage Obligations of U.S. Government Corporations and Agencies [Member]
ASSETS
Total securities available-for-sale	94,604	63,774
Fair Value Measurements, Recurring [Member] | Residential Mortgage-Backed Securities of U.S. Government Corporations and Agencies [Member]
ASSETS
Total securities available-for-sale	46,389	48,669
Fair Value Measurements, Recurring [Member] | Commercial Mortgage-Backed Securities of U.S. Government Corporations and Agencies [Member]
ASSETS
Total securities available-for-sale	39,920	39,052
Fair Value Measurements, Recurring [Member] | Obligations of States and Political Subdivisions [Member]
ASSETS
Total securities available-for-sale	128,313	114,264
Fair Value Measurements, Recurring [Member] | Marketable Equity Securities [Member]
ASSETS
Total securities available-for-sale	9,014	8,915
Fair Value Measurements, Recurring [Member] | Interest Rate Swaps [Member]
ASSETS
Derivative financial assets	14,082	13,698
LIABILITIES
Derivative financial liabilities	14,050	13,647
Fair Value Measurements, Recurring [Member] | Interest Rate Lock Commitments [Member]
ASSETS
Derivative financial assets	292	85
Fair Value Measurements, Recurring [Member] | Forward Sale Contracts [Member]
ASSETS
Derivative financial assets	0	34
LIABILITIES
Derivative financial liabilities	59
Level 1 [Member] | Fair Value Measurements, Recurring [Member]
ASSETS
Total securities available-for-sale	179	202
Trading securities held in a Rabbi Trust	3,117	2,864
Total securities	3,296	3,066
Total Assets	3,296	3,066
LIABILITIES
Total Liabilities	0
Level 1 [Member] | Fair Value Measurements, Recurring [Member] | Obligations of U.S. Government Corporations and Agencies [Member]
ASSETS
Total securities available-for-sale
Level 1 [Member] | Fair Value Measurements, Recurring [Member] | Collateralized Mortgage Obligations of U.S. Government Corporations and Agencies [Member]
ASSETS
Total securities available-for-sale
Level 1 [Member] | Fair Value Measurements, Recurring [Member] | Residential Mortgage-Backed Securities of U.S. Government Corporations and Agencies [Member]
ASSETS
Total securities available-for-sale
Level 1 [Member] | Fair Value Measurements, Recurring [Member] | Commercial Mortgage-Backed Securities of U.S. Government Corporations and Agencies [Member]
ASSETS
Total securities available-for-sale
Level 1 [Member] | Fair Value Measurements, Recurring [Member] | Obligations of States and Political Subdivisions [Member]
ASSETS
Total securities available-for-sale
Level 1 [Member] | Fair Value Measurements, Recurring [Member] | Marketable Equity Securities [Member]
ASSETS
Total securities available-for-sale	179	202
Level 1 [Member] | Fair Value Measurements, Recurring [Member] | Interest Rate Swaps [Member]
ASSETS
Derivative financial assets
LIABILITIES
Derivative financial liabilities
Level 1 [Member] | Fair Value Measurements, Recurring [Member] | Interest Rate Lock Commitments [Member]
ASSETS
Derivative financial assets
Level 1 [Member] | Fair Value Measurements, Recurring [Member] | Forward Sale Contracts [Member]
ASSETS
Derivative financial assets	0
LIABILITIES
Derivative financial liabilities
Level 2 [Member] | Fair Value Measurements, Recurring [Member]
ASSETS
Total securities available-for-sale	588,309	509,223
Trading securities held in a Rabbi Trust
Total securities	588,309	509,223
Total Assets	602,683	523,040
LIABILITIES
Total Liabilities	14,109	13,647
Level 2 [Member] | Fair Value Measurements, Recurring [Member] | Obligations of U.S. Government Corporations and Agencies [Member]
ASSETS
Total securities available-for-sale	270,248	234,751
Level 2 [Member] | Fair Value Measurements, Recurring [Member] | Collateralized Mortgage Obligations of U.S. Government Corporations and Agencies [Member]
ASSETS
Total securities available-for-sale	94,604	63,774
Level 2 [Member] | Fair Value Measurements, Recurring [Member] | Residential Mortgage-Backed Securities of U.S. Government Corporations and Agencies [Member]
ASSETS
Total securities available-for-sale	46,389	48,669
Level 2 [Member] | Fair Value Measurements, Recurring [Member] | Commercial Mortgage-Backed Securities of U.S. Government Corporations and Agencies [Member]
ASSETS
Total securities available-for-sale	39,920	39,052
Level 2 [Member] | Fair Value Measurements, Recurring [Member] | Obligations of States and Political Subdivisions [Member]
ASSETS
Total securities available-for-sale	128,313	114,264
Level 2 [Member] | Fair Value Measurements, Recurring [Member] | Marketable Equity Securities [Member]
ASSETS
Total securities available-for-sale	8,835	8,713
Level 2 [Member] | Fair Value Measurements, Recurring [Member] | Interest Rate Swaps [Member]
ASSETS
Derivative financial assets	14,082	13,698
LIABILITIES
Derivative financial liabilities	14,050	13,647
Level 2 [Member] | Fair Value Measurements, Recurring [Member] | Interest Rate Lock Commitments [Member]
ASSETS
Derivative financial assets	292	85
Level 2 [Member] | Fair Value Measurements, Recurring [Member] | Forward Sale Contracts [Member]
ASSETS
Derivative financial assets	0	34
LIABILITIES
Derivative financial liabilities	59
Level 3 [Member] | Fair Value Measurements, Recurring [Member]
ASSETS
Total securities available-for-sale
Trading securities held in a Rabbi Trust
Total securities
Total Assets
LIABILITIES
Total Liabilities	0
Level 3 [Member] | Fair Value Measurements, Recurring [Member] | Obligations of U.S. Government Corporations and Agencies [Member]
ASSETS
Total securities available-for-sale
Level 3 [Member] | Fair Value Measurements, Recurring [Member] | Collateralized Mortgage Obligations of U.S. Government Corporations and Agencies [Member]
ASSETS
Total securities available-for-sale
Level 3 [Member] | Fair Value Measurements, Recurring [Member] | Residential Mortgage-Backed Securities of U.S. Government Corporations and Agencies [Member]
ASSETS
Total securities available-for-sale
Level 3 [Member] | Fair Value Measurements, Recurring [Member] | Commercial Mortgage-Backed Securities of U.S. Government Corporations and Agencies [Member]
ASSETS
Total securities available-for-sale
Level 3 [Member] | Fair Value Measurements, Recurring [Member] | Obligations of States and Political Subdivisions [Member]
ASSETS
Total securities available-for-sale
Level 3 [Member] | Fair Value Measurements, Recurring [Member] | Marketable Equity Securities [Member]
ASSETS
Total securities available-for-sale
Level 3 [Member] | Fair Value Measurements, Recurring [Member] | Interest Rate Swaps [Member]
ASSETS
Derivative financial assets
LIABILITIES
Derivative financial liabilities
Level 3 [Member] | Fair Value Measurements, Recurring [Member] | Interest Rate Lock Commitments [Member]
ASSETS
Derivative financial assets
Level 3 [Member] | Fair Value Measurements, Recurring [Member] | Forward Sale Contracts [Member]
ASSETS
Derivative financial assets	0
LIABILITIES
Derivative financial liabilities

XML

Commitments and Contingencies - Commitments and Letters of Credit (Detail) (USD $) In Thousands, unless otherwise specified	6 Months Ended	12 Months Ended
	Jun. 30, 2014	Dec. 31, 2013
Commitment And Contingencies [Line Items]
Commitments and letters of credit	$ 1,195,938	$ 1,117,168
Commitments to Extend Credit [Member]
Commitment And Contingencies [Line Items]
Commitments and letters of credit	1,117,511	1,038,529
Standby Letters of Credit [Member]
Commitment And Contingencies [Line Items]
Commitments and letters of credit	$ 78,427	$ 78,639

XML

Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2014

Fair Value Disclosures [Abstract]

Assets and Liabilities Measured at Fair Value on Recurring Basis

The following tables present our assets and liabilities that are measured at fair value on a recurring basis by fair value hierarchy level at June 30, 2014 and December 31, 2013. There were no transfers between Level 1 and Level 2 for items measured at fair value on a recurring basis during the periods presented.

	June 30, 2014
(dollars in thousands)	Level 1		Level 2		Level 3		Total
ASSETS
Securities available-for-sale:
Obligations of U.S. government corporations and agencies	$	—	$	270,248	$	—	$	270,248
Collateralized mortgage obligations of U.S. government corporations and agencies	—		94,604		—		94,604
Residential mortgage-backed securities of U.S. government corporations and agencies	—		46,389		—		46,389
Commercial mortgage-backed securities of U.S. government corporations and agencies	—		39,920		—		39,920
Obligations of states and political subdivisions	—		128,313		—		128,313
Marketable equity securities	179		8,835		—		9,014
Total securities available-for-sale	179		588,309		—		588,488
Trading securities held in a Rabbi Trust	3,117		—		—		3,117
Total securities	3,296		588,309		—		591,605
Derivative financial assets:
Interest rate swaps	—		14,082		—		14,082
Interest rate lock commitments	—		292		—		292
Forward sale contracts	—		—		—		—
Total Assets	$	3,296	$	602,683	$	—	$	605,979
LIABILITIES
Derivative financial liabilities:
Interest rate swaps	$	—	$	14,050	$	—	$	14,050
Forward sale contracts	—		59		—		$	59
Total Liabilities	$	—	$	14,109	$	—	$	14,109

	December 31, 2013
(dollars in thousands)	Level 1		Level 2		Level 3		Total
ASSETS
Securities available-for-sale:
Obligations of U.S. government corporations and agencies	$	—	$	234,751	$	—	$	234,751
Collateralized mortgage obligations of U.S. government corporations and agencies	—		63,774		—		63,774
Residential mortgage-backed securities of U.S. government corporations and agencies	—		48,669		—		48,669
Commercial mortgage-backed securities of U.S. government corporations and agencies	—		39,052		—		39,052
Obligations of states and political subdivisions	—		114,264		—		114,264
Marketable equity securities	202		8,713		—		8,915
Total securities available-for-sale	202		509,223		—		509,425
Trading securities held in a Rabbi Trust	2,864		—		—		2,864
Total securities	3,066		509,223		—		512,289
Derivative financial assets:
Interest rate swaps	—		13,698		—		13,698
Interest rate lock commitments	—		85		—		85
Forward sale contracts	—		34		—		34
Total Assets	$	3,066	$	523,040	$	—	$	526,106
LIABILITIES
Derivative financial liabilities:
Interest rate swaps	$	—	$	13,647	$	—	$	13,647
Total Liabilities	$	—	$	13,647	$	—	$	13,647

Changes in Assets Classified as Level 3 in Fair Value Hierarchy

The following table presents the changes in assets measured at fair value on a recurring basis for which we have utilized Level 3 inputs to determine the fair value:

	Three Months Ended June 30,					Six Months Ended June 30,
(dollars in thousands)	2014		2013			2014		2013
Balance at beginning of period	$	—	$	312		$	—	$	300
Total gains included in other comprehensive income(1)	—		32			—		44
Net purchases, sales, issuances and settlements	—		—			—		—
Transfers out of Level 3	—		(344		)	—		(344		)
Balance at end of period	$	—	$	—		$	—	$	—

⁽¹⁾ Changes in estimated fair value of available-for-sale investments are recorded in accumulated other comprehensive income (loss), while realized gains and losses from sales are recorded in security gains (losses), net in the Consolidated Statements of Comprehensive Income.

Assets Measured at Estimated Fair Value on Nonrecurring Basis by Fair Value Hierarchy

	June 30, 2014								December 31, 2013
(dollars in thousands)	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
ASSETS
Loans held for sale	$	—	$	—	$	1,300	$	1,300	$	—	$	—	$	1,516	$	1,516
Impaired loans	—		—		14,483		14,483		—		—		19,197		19,197
Other real estate owned	—		—		317		317		—		—		317		317
Mortgage servicing rights	—		—		1,211		1,211		—		—		1,025		1,025
Total Assets	$	—	$	—	$	17,311	$	17,311	$	—	$	—	$	22,055	$	22,055

Carrying Values and Fair Values of Financial Instruments

The carrying values and fair values of our financial instruments at June 30, 2014 and December 31, 2013 are presented in the following tables:

	Carrying Value(1)		Fair Value Measurements at June 30, 2014
(dollars in thousands)			Total		Level 1		Level 2		Level 3
ASSETS
Cash and due from banks, including interest-bearing deposits	$	130,235	$	130,235	$	130,235	$	—	$	—
Securities available-for-sale	588,488		588,488		179		588,309		—
Loans held for sale	3,102		3,121		—		—		3,121
Portfolio loans, net of unearned income	3,725,079		3,691,807		—		—		3,691,807
Bank owned life insurance	61,348		61,348		—		61,348		—
FHLB and other restricted stock	15,818		15,818		—		—		15,818
Trading securities held in a Rabbi Trust	3,117		3,117		3,117		—		—
Mortgage servicing rights	2,743		2,890		—		—		2,890
Interest rate swaps	14,082		14,082		—		14,082		—
Interest rate lock commitments	292		292		—		292		—
LIABILITIES
Deposits	$	3,865,246	$	3,867,540	$	—	$	—	$	3,867,540
Securities sold under repurchase agreements	25,269		25,269		—		—		25,269
Short-term borrowings	185,000		185,000		—		—		185,000
Long-term borrowings	20,636		21,779		—		—		21,779
Junior subordinated debt securities	45,619		45,619		—		—		45,619
Interest rate swaps	14,050		14,050		—		14,050		—
Forward sale contracts	59		59		—		59		—
(1) As reported in the Consolidated Balance Sheets
	Carrying Value(1)		Fair Value Measurements at December 31, 2013
(dollars in thousands)			Total		Level 1		Level 2		Level 3
ASSETS
Cash and due from banks, including interest-bearing deposits	$	108,356	$	108,356	$	108,356	$	—	$	—
Securities available-for-sale	509,425		509,425		202		509,223		—
Loans held for sale	2,136		2,139		—		—		2,139
Portfolio loans, net of unearned income	3,566,199		3,538,072		—		—		3,538,072
Bank owned life insurance	60,480		60,480		—		60,480		—
FHLB and other restricted stock	13,629		13,629		—		—		13,629
Trading securities held in a Rabbi Trust	2,864		2,864		2,864		—		—
Mortgage servicing rights	2,919		3,143		—		—		3,143
Interest rate swaps	13,698		13,698		—		13,698		—
Interest rate lock commitments	85		85		—		85		—
Forward sale contracts	34		34		—		34		—
LIABILITIES
Deposits	$	3,672,308	$	3,673,624	$	—	$	—	$	3,673,624
Securities sold under repurchase agreements	33,847		33,847		—		—		33,847
Short-term borrowings	140,000		140,000		—		—		140,000
Long-term borrowings	21,810		22,924		—		—		22,924
Junior subordinated debt securities	45,619		45,619		—		—		45,619
Interest rate swaps	13,647		13,647		—		13,647		—

⁽¹⁾ As reported in the Consolidated Balance Sheets

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Fair Value Measurements - Changes in Assets Classified as Level 3 in Fair Value Hierarchy (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2014		Jun. 30, 2013		Jun. 30, 2014		Jun. 30, 2013
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of period			$ 312				$ 300
Total gains included in other comprehensive income		[1]	32	[1]		[1]	44	[1]
Net purchases, sales, issuances and settlements			0
Transfers out of Level 3			(344)				(344)
Balance at end of period			$ 0				$ 0

[1] Changes in estimated fair value of available-for-sale investments are recorded in accumulated other comprehensive income (loss), while realized gains and losses from sales are recorded in security gains (losses), net in the Consolidated Statements of Comprehensive Income.

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Loans and Loans Held for Sale (Tables)

6 Months Ended

Jun. 30, 2014

Receivables [Abstract]

Composition of Loans

The following table indicates the composition of the loans as of the dates presented:

(dollars in thousands)	June 30, 2014		December 31, 2013
Commercial
Commercial real estate	$	1,636,383	$	1,607,756
Commercial and industrial	922,191		842,449
Commercial construction	188,311		143,675
Total Commercial Loans	2,746,885		2,593,880
Consumer
Residential mortgage	492,589		487,092
Home equity	416,226		414,195
Installment and other consumer	65,838		67,883
Consumer construction	3,541		3,149
Total Consumer Loans	978,194		972,319
Total Portfolio Loans	3,725,079		3,566,199
Loans held for sale	3,102		2,136
Total Loans	$	3,728,181	$	3,568,335

Restructured Loans for Periods Presented

The following table summarizes the restructured loans as of the dates presented:

	June 30, 2014						December 31, 2013
(dollars in thousands)	Accruing TDRs		Nonaccruing TDRs		Total TDRs		Accruing TDRs		Nonaccruing TDRs		Total TDRs
Commercial real estate	$	16,934	$	1,431	$	18,365	$	19,711	$	3,898	$	23,609
Commercial and industrial	7,390		1,170		8,560		7,521		1,884		9,405
Commercial construction	6,310		1,869		8,179		5,338		2,708		8,046
Residential mortgage	2,647		645		3,292		2,581		1,356		3,937
Home equity	3,712		125		3,837		3,924		218		4,142
Installment and other consumer	127		1		128		154		3		157
Total	$	37,120	$	5,241	$	42,361	$	39,229	$	10,067	$	49,296

Restructured Loans for Periods Stated

The following tables present the restructured loans for the three and six month periods ended June 30, 2014 and June 30, 2013:

	Three Months Ended June 30, 2014								Three Months Ended June 30, 2013
(dollars in thousands)	Number of Loans	Pre-Modification Outstanding Recorded Investment(1)		Post-Modification Outstanding Recorded Investment(1)		Total  Difference in Recorded Investment			Number of Loans	Pre-Modification Outstanding Recorded Investment(1)		Post-Modification Outstanding Recorded Investment(1)		Total  Difference in Recorded Investment
Commercial real estate
Principal forgiveness (3)	—	$	—	$	—	$	—		1	$	4,339	$	4,339	$	—
Principal deferral	1	129		127		(2		)	—	—		—		—
Chapter 7 bankruptcy(2)	—	—		—		—			4	53		51		(2		)
Commercial and industrial
Maturity date extension	—	—		—		—			1	751		751		—
Residential mortgage
Chapter 7 bankruptcy(2)	1	52		52		—			2	84		75		(9		)
Home equity
Chapter 7 bankruptcy(2)	4	43		41		(2		)	17	486		478		(8		)
Installment and other consumer
Chapter 7 bankruptcy(2)	1	9		9		—			—	—		—		—
Total by Concession Type
Principal forgiveness  (3)	—	—		—		—			1	4,339		4,339		—
Principal deferral	1	129		127		(2		)	—	—		—		—
Chapter 7 bankruptcy(2)	6	104		102		(2		)	23	623		604		(19		)
Maturity date extension	—	—		—		—			1	751		751		—
Total	7	$	233	$	229	$	4		25	5,713		5,694		(19		)
(1) Excludes loans that were fully paid off or fully charged-off by period end. The pre-modification balance represents the balance outstanding prior to modification. The post-modification balance represents the outstanding balance at period end. (2) Chapter 7 bankruptcy loans where the debt has been legally discharged through the bankruptcy court and not reaffirmed. (3) This loan had debt forgiveness of $0.l million to the customer; however, the loan was previously charged off to a balance below the actual contractual balance.

	Six Months Ended June 30, 2014								Six Months Ended June 30, 2013
(dollars in thousands)	Number of Loans	Pre-Modification Outstanding Recorded Investment(1)		Post-Modification Outstanding Recorded Investment(1)		Total  Difference in Recorded Investment			Number of Loans	Pre-Modification Outstanding Recorded Investment(1)		Post-Modification Outstanding Recorded Investment(1)		Total  Difference in Recorded Investment
Commercial real estate
Principal deferral	1	$	129	$	127	$	(2	)	3	$	1,541	$	1,288	$	(253	)
Principal forgiveness(3)	—	—		—		—			1	4,339		4,339		—
Chapter 7 bankruptcy(2)	—	—		—		—			7	258		255		(3		)
Commercial and industrial
Principal deferral	—	—		—		—			1	392		387		(5		)
Maturity date extension	—	—		—		—			1	751		751		—
Chapter 7 bankruptcy(2)	1	287		286		(1		)	1	3		3		—
Commercial Construction
Maturity date extension	1	1,019		1,019		—			—	—		—		—
Residential mortgage
Principal deferral	—	—		—		—			2	153		153		—
Chapter 7 bankruptcy(2)	5	329		327		(2		)	8	353		344		(9		)
Home equity
Principal deferral	—	—		—		—			1	174		45		(129		)
Chapter 7 bankruptcy(2)	10	269		251		(18		)	23	648		640		(8		)
Installment and other consumer
Chapter 7 bankruptcy(2)	1	9		9		—			6	73		73		—
Total by Concession Type
Principal deferral	1	129		127		(2		)	7	2,260		1,873		(387		)
Principal forgiveness(3)	—	—		—		—			1	4,339		4,339		—
Maturity date extension	1	1,019		1,019		—			1	751		751		—
Chapter 7 bankruptcy(2)	17	894		873		(21		)	45	1,335		1,315		(20		)
Total	19	$	2,042	$	2,019	$	(23	)	54	$	8,685	8,278		(407		)
(1) Excludes loans that were fully paid off or fully charged-off by period end. The pre-modification balance represents the balance outstanding prior to modification. The post-modification balance represents the outstanding balance at period end. (2) Chapter 7 bankruptcy loans where the debt has been legally discharged through the bankruptcy court and not reaffirmed. (3) This loan had debt forgiveness of $0.l million to the customer; however, the loan was previously charged off to a balance below the actual contractual balance.

Summary of Nonperforming Assets of Defaulted TDRs

The following tables present a summary of TDRs which defaulted during the periods presented that had been restructured within the last twelve months prior to defaulting:

	Defaulted TDRs
	For the Three Months ended June 30, 2014			For the Three Months ended June 30, 2013
(dollars in thousands)	Number of Defaults	Recorded Investment		Number of Defaults		Recorded Investment
Commercial real estate	—	$	—	$	—	$	—
Commercial and Industrial	—	—		—		—
Commercial construction	—	—		—		—
Residential real estate	—	—		2		46
Home equity	—	—		2		33
Total	—	$	—	$	4	$	79
	Defaulted TDRs
	For the Six Months Ended June 30, 2014			For the Six Months Ended June 30, 2013
(dollars in thousands)	Number of Defaults	Recorded Investment		Number of Defaults		Recorded Investment
Commercial real estate	—	$	—	$	—	$	—
Commercial and Industrial	—	—		—		—
Commercial construction	—	—		—		—
Residential real estate	1	72		3		64
Home equity	—	—		4		151
Total	1	$	72	$	7	$	215

Summary of Nonperforming Assets

The following table is a summary of nonperforming assets as of the dates presented:

	Nonperforming Assets
(dollars in thousands)	June 30, 2014		December 31, 2013
Nonperforming Assets
Nonaccrual loans	$	9,698	$	12,387
Nonaccrual TDRs	5,241		10,067
Total nonaccrual loans	14,939		22,454
OREO	431		410
Total Nonperforming Assets	$	15,370	$	22,864

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Employee Benefits - Components of Net Periodic Pension Cost and Other Changes in Plan Assets and Benefit (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Components of Net Periodic Pension Cost
Service cost—benefits earned during the period	$ 631	$ 708	$ 1,262	$ 1,416
Interest cost on projected benefit obligation	1,106	996	2,212	1,992
Expected return on plan assets	(1,735)	(1,565)	(3,470)	(3,130)
Amortization of prior service cost (credit)	(35)	(34)	(70)	(68)
Recognized net actuarial loss	209	588	418	1,176
Net Periodic Pension Expense	$ 176	$ 693	$ 352	$ 1,386

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Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
OPERATING ACTIVITIES
Net income	$ 28,753	$ 26,433
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	(845)	3,330
Provision for unfunded loan commitments	182	302
Depreciation and amortization	2,309	3,061
Net amortization of discounts and premiums	1,898	1,776
Stock-based compensation expense	395	254
Securities gains, net	(41)	(2)
Net gain on sale of merchant card servicing business	0	(3,093)
Tax expense from stock-based compensation	0	47
Mortgage loans originated for sale	(13,057)	(37,706)
Proceeds from the sale of loans	13,475	57,667
Gain on the sale of loans, net	(85)	(647)
Net increase in interest receivable	(243)	(1,222)
Net decrease in interest payable	(186)	(1,241)
Net decrease in other assets	10,016	17,243
Net increase (decrease) in other liabilities	1,199	(20,981)
Net Cash Provided by Operating Activities	43,770	45,221
INVESTING ACTIVITIES
Purchases of securities available-for-sale	(108,845)	(66,495)
Proceeds from maturities, prepayments and calls of securities available-for-sale	36,343	23,240
Proceeds from sales of securities available-for-sale	1,418	94
Net (payments for) proceeds from Federal Home Loan Bank stock	(2,189)	1,356
Net increase in loans	(169,209)	(103,846)
Proceeds from sale of loans not originated for resale	4,108	0
Purchases of premises and equipment	(1,719)	(1,400)
Proceeds from the sale of premises and equipment	64	576
Proceeds from the sale of merchant card servicing business	0	4,750
Net Cash Used in Investing Activities	(240,029)	(141,725)
FINANCING ACTIVITIES
Net increase (decrease) in core deposits	141,888	(26,999)
Net increase in certificates of deposit	50,972	36,842
Net (decrease) increase in securities sold under repurchase agreements	(8,578)	11,569
Net increase in short-term borrowings	45,000	50,000
Repayments of long-term borrowings	(1,174)	(11,136)
Repayment of junior subordinated debt	0	(45,000)
Treasury shares purchased-net	(160)	(86)
Cash dividends paid to common shareholders	(9,810)	(8,918)
Tax expense from stock-based compensation	0	(47)
Net Cash Provided by Financing Activities	218,138	6,225
Net increase (decrease) in cash and cash equivalents	21,879	(90,279)
Cash and cash equivalents at beginning of period	108,356	337,711
Cash and Cash Equivalents at End of Period	130,235	247,432
Supplemental Disclosures
Loans transferred to held for sale	1,300	0
Interest paid	6,278	9,372
Income taxes paid, net of refunds	8,400	5,155
Transfers of loans to other real estate owned	$ 274	$ 180

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Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Statement of Financial Position [Abstract]
Cash and due from banks, interest-bearing amounts	$ 54,575	$ 53,594
Common stock, par value (in dollars per share)	$ 2.50	$ 2.50
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued	31,197,365	31,197,365
Common stock, shares outstanding	29,797,204	29,737,725
Treasury stock, shares	1,400,161	1,459,640

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Other Comprehensive Income

6 Months Ended

Jun. 30, 2014

Equity [Abstract]

Other Comprehensive Income

OTHER COMPREHENSIVE INCOME

The following table presents the tax effects of the components of other comprehensive income (loss) for the periods presented:

	Three Months Ended June 30, 2014									Three Months Ended June 30, 2013
(dollars in thousands)	Pre-Tax Amount			Tax (Expense) Benefit			Net of Tax Amount			Pre-Tax Amount			Tax (Expense) Benefit			Net of Tax Amount
Change in unrealized gains/losses on securities available-for-sale	$	5,401		$	(1,891	)	$	3,510		$	(12,061	)	$	4,221		$	(7,840	)
Reclassification adjustment for net (gains)/losses on securities available-for-sale included in net income (1)	(40		)	15			(25		)	—			—			—
Adjustment to funded status of employee benefit plans	211			(74		)	137			598			(210		)	388
Other Comprehensive Income (Loss)	$	5,572		$	(1,950	)	$	3,622		$	(11,463	)	$	4,011		$	(7,452	)
(1) Reclassification adjustments are comprised of realized security gains. The gains have been reclassified out of accumulated other comprehensive income (loss) and have affected certain lines in the Consolidated Statements of Comprehensive Income as follows; the pre-tax amount is included in securities gains-net, the tax expense amount is included in the provision for income taxes and the net of tax amount is included in net income.
	Six Months Ended June 30, 2014									Six Months Ended June 30, 2013
(dollars in thousands)	Pre-Tax Amount			Tax (Expense) Benefit			Net of Tax Amount			Pre-Tax Amount			Tax (Expense) Benefit			Net of Tax Amount
Change in unrealized gains/losses on securities available-for-sale	$	9,876		$	(3,457	)	$	6,419		$	(13,829	)	$	4,840		$	(8,989	)
Reclassification adjustment for net (gains)/losses on securities available-for-sale included in net income (1)	(41		)	15			(26		)	(2		)	1			(1		)
Adjustment to funded status of employee benefit plans	423			(148		)	275			1,196			(419		)	777
Other Comprehensive Income (Loss)	$	10,258		$	(3,590	)	$	6,668		$	(12,635	)	$	4,422		$	(8,213	)
(1) Reclassification adjustments are comprised of realized security gains. The gains have been reclassified out of accumulated other comprehensive income and have affected certain lines in the consolidated statement of comprehensive income as follows; the pre-tax amount is included in securities gains-net, the tax expense amount is included in the provision for income taxes and the net of tax amount is included in net income.

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Document and Entity Information	6 Months Ended
	Jun. 30, 2014	Jul. 31, 2014
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2014
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	Q2
Entity Registrant Name	S&T BANCORP INC
Entity Central Index Key	0000719220
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		29,796,397

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Employee Benefits

6 Months Ended

Jun. 30, 2014

Compensation and Retirement Disclosure [Abstract]

Employee Benefits

We maintain a defined benefit pension plan, or Plan, covering substantially all employees hired prior to January 1, 2008. The benefits are based on years of service and the employee’s compensation for the highest five consecutive years in the last ten years. Contributions are intended to provide for benefits attributed to employee service to date and for those benefits expected to be earned in the future. At this time, we are not required to make a cash contribution to the Plan in 2014. The expected long-term rate of return on plan assets is 8.00 percent. Through June 30, 2014, there have been no changes to the Plan.

The following table summarizes the components of net periodic pension cost for the periods presented:

	Three Months Ended June 30,						Six Months Ended June 30,
(dollars in thousands)	2014			2013			2014			2013
Components of Net Periodic Pension Cost
Service cost—benefits earned during the period	$	631		$	708		$	1,262		$	1,416
Interest cost on projected benefit obligation	1,106			996			2,212			1,992
Expected return on plan assets	(1,735		)	(1,565		)	(3,470		)	(3,130		)
Amortization of prior service cost (credit)	(35		)	(34		)	(70		)	(68		)
Recognized net actuarial loss	209			588			418			1,176
Net Periodic Pension Expense	$	176		$	693		$	352		$	1,386

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Consolidated Statements of Comprehensive Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
INTEREST INCOME
Loans, including fees	$ 36,614	$ 35,765	$ 72,263	$ 70,810
Investment securities:
Taxable	2,184	1,879	4,167	3,742
Tax-exempt	979	815	1,908	1,648
Dividends	95	94	199	196
Total Interest Income	39,872	38,553	78,537	76,396
INTEREST EXPENSE
Deposits	2,476	2,951	4,986	6,153
Borrowings and junior subordinated debt securities	541	1,006	1,105	1,978
Total Interest Expense	3,017	3,957	6,091	8,131
NET INTEREST INCOME	36,855	34,596	72,446	68,265
Provision for loan losses	(1,134)	1,023	(845)	3,330
Net Interest Income After Provision for Loan Losses	37,989	33,573	73,291	64,935
NONINTEREST INCOME
Securities gains, net	40	0	41	2
Wealth management fees	2,837	2,820	5,792	5,396
Debit and credit card fees	2,724	3,150	5,226	5,601
Service charges on deposit accounts	2,574	2,495	5,083	4,943
Insurance fees	1,425	1,643	3,102	3,418
Mortgage banking	264	911	396	1,393
Gain on sale of merchant card servicing business	0	0	0	3,093
Other	1,907	1,848	3,547	3,827
Total Noninterest Income	11,771	12,867	23,187	27,673
NONINTEREST EXPENSE
Salaries and employee benefits	15,772	14,725	31,148	30,792
Data processing	2,219	2,137	4,314	4,801
Net occupancy	1,984	1,958	4,214	4,127
Furniture and equipment	1,277	1,230	2,548	2,538
Marketing	960	793	1,578	1,482
Other taxes	893	915	1,524	1,914
Professional services and legal	875	1,171	1,538	2,145
FDIC insurance	579	707	1,210	1,483
Other	5,606	4,750	11,005	10,720
Total Noninterest Expense	30,165	28,386	59,079	60,002
Income Before Taxes	19,595	18,054	37,399	32,606
Provision for income taxes	4,875	3,951	8,646	6,173
Net Income	14,720	14,103	28,753	26,433
Earnings per share—basic (in dollars per share)	$ 0.49	$ 0.47	$ 0.97	$ 0.89
Earnings per share—diluted (in dollars per share)	$ 0.49	$ 0.47	$ 0.97	$ 0.89
Dividends declared per share (in dollars per share)	$ 0.17	$ 0.15	$ 0.33	$ 0.30
Comprehensive Income	$ 18,343	$ 6,651	$ 35,421	$ 18,220

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Loans and Loans Held for Sale

6 Months Ended

Jun. 30, 2014

Receivables [Abstract]

Loans and Loans Held for Sale

LOANS AND LOANS HELD FOR SALE

     Loans are presented net of unearned income of $1.8 million and $1.3 million at June 30, 2014 and December 31, 2013. The following table indicates the composition of the loans as of the dates presented:

(dollars in thousands)	June 30, 2014		December 31, 2013
Commercial
Commercial real estate	$	1,636,383	$	1,607,756
Commercial and industrial	922,191		842,449
Commercial construction	188,311		143,675
Total Commercial Loans	2,746,885		2,593,880
Consumer
Residential mortgage	492,589		487,092
Home equity	416,226		414,195
Installment and other consumer	65,838		67,883
Consumer construction	3,541		3,149
Total Consumer Loans	978,194		972,319
Total Portfolio Loans	3,725,079		3,566,199
Loans held for sale	3,102		2,136
Total Loans	$	3,728,181	$	3,568,335

We attempt to limit our exposure to credit risk by diversifying our loan portfolio and actively managing concentrations. When concentrations exist in certain segments, we mitigate this risk by monitoring the relevant economic indicators and internal risk rating trends and through stress testing of the loans in these segments. Total commercial loans represented 74 percent of total portfolio loans at June 30, 2014 and 73 percent of total portfolio loans at December 31, 2013. Within our commercial portfolio, the commercial real estate, or CRE, and commercial construction portfolios combined comprised 66 percent of total commercial loans and 49 percent of total portfolio loans at June 30, 2014 and 68 percent of total commercial loans and 49 percent of total portfolio loans at December 31, 2013. Further segmentation of the CRE and commercial construction portfolios by industry and collateral type revealed no concentration in excess of nine percent of total loans at either June 30, 2014 or December 31, 2013. The majority of both commercial and consumer loans are made to businesses and individuals in Western Pennsylvania resulting in a geographic concentration. The conditions of the local and regional economies are monitored closely through publicly available data as well as information supplied by our customers. Management believes underwriting guidelines, active monitoring of economic conditions and ongoing review by credit administration mitigates the concentration risk present in the loan portfolio. Only the CRE and commercial construction portfolios combined have any significant out-of-state exposure, with 26 percent of the combined portfolio and 13 percent of total loans being out-of-state loans at June 30, 2014 and 23 percent of the combined portfolio and 11 percent of total loans being out-of-state loans at December 31, 2013. Our CRE and commercial construction portfolios combined out-of-state exposure, excluding the contiguous states of Ohio, West Virginia, New York and Maryland, was 7.2 percent of the combined portfolio and 3.6 percent of total loans at June 30, 2014 and 7.9 percent of the combined portfolio and 3.9 percent of total loans at December 31, 2013.

Troubled debt restructurings, or TDRs, are loans where we, for economic or legal reasons related to a borrower’s financial difficulties, grant a concession to the borrower that we would not otherwise grant. We strive to identify borrowers in financial difficulty early and work with them to modify the terms before their loan reaches nonaccrual status. These modified terms generally include extensions of maturity dates at a stated interest rate lower than the current market rate for a new loan with similar risk characteristics, reductions in contractual interest rates or principal deferment. While unusual, there may be instances of principal forgiveness. These modifications are generally for longer term periods that would not be considered insignificant. Additionally, we classify loans where the debt obligation has been discharged through a Chapter 7 Bankruptcy and not reaffirmed as TDRs.

We individually evaluate all substandard commercial loans that have experienced a forbearance or change in terms agreement, as well as all substandard consumer and residential mortgage loans that entered into an agreement to modify their existing loan to determine if they should be designated as TDRs. All TDRs are considered to be impaired loans and will be reported as impaired loans for the remaining life of the loan, unless the restructuring agreement specifies an interest rate equal to or greater than the rate that would be accepted at the time of the restructuring for a new loan with comparable risk and it is fully expected that the remaining principal and interest will be collected according to the restructured agreement. Further, all impaired loans are reported as nonaccrual loans unless the loan is a TDR that has met the requirements to be returned to accruing status. TDRs can be returned to accruing status if the ultimate collectability of all contractual amounts due, according to the restructured agreement, is not in doubt and there is a period of a minimum of six months of satisfactory payment performance by the borrower either immediately before or after the restructuring.

The following table summarizes the restructured loans as of the dates presented:

	June 30, 2014						December 31, 2013
(dollars in thousands)	Accruing TDRs		Nonaccruing TDRs		Total TDRs		Accruing TDRs		Nonaccruing TDRs		Total TDRs
Commercial real estate	$	16,934	$	1,431	$	18,365	$	19,711	$	3,898	$	23,609
Commercial and industrial	7,390		1,170		8,560		7,521		1,884		9,405
Commercial construction	6,310		1,869		8,179		5,338		2,708		8,046
Residential mortgage	2,647		645		3,292		2,581		1,356		3,937
Home equity	3,712		125		3,837		3,924		218		4,142
Installment and other consumer	127		1		128		154		3		157
Total	$	37,120	$	5,241	$	42,361	$	39,229	$	10,067	$	49,296

We returned four TDRs for $1.4 million to accruing status during the three months ended June 30, 2014 and five TDRs for $1.5 million to accruing status during the six months ended June 30, 2014. There were no TDRs returned to accruing status during the three months ended June 30, 2013 and one TDR for $0.2 million was returned to accruing status during the six months ended June 30, 2013.

The following tables present the restructured loans for the three and six month periods ended June 30, 2014 and June 30, 2013:

	Three Months Ended June 30, 2014								Three Months Ended June 30, 2013
(dollars in thousands)	Number of Loans	Pre-Modification Outstanding Recorded Investment(1)		Post-Modification Outstanding Recorded Investment(1)		Total  Difference in Recorded Investment			Number of Loans	Pre-Modification Outstanding Recorded Investment(1)		Post-Modification Outstanding Recorded Investment(1)		Total  Difference in Recorded Investment
Commercial real estate
Principal forgiveness (3)	—	$	—	$	—	$	—		1	$	4,339	$	4,339	$	—
Principal deferral	1	129		127		(2		)	—	—		—		—
Chapter 7 bankruptcy(2)	—	—		—		—			4	53		51		(2		)
Commercial and industrial
Maturity date extension	—	—		—		—			1	751		751		—
Residential mortgage
Chapter 7 bankruptcy(2)	1	52		52		—			2	84		75		(9		)
Home equity
Chapter 7 bankruptcy(2)	4	43		41		(2		)	17	486		478		(8		)
Installment and other consumer
Chapter 7 bankruptcy(2)	1	9		9		—			—	—		—		—
Total by Concession Type
Principal forgiveness  (3)	—	—		—		—			1	4,339		4,339		—
Principal deferral	1	129		127		(2		)	—	—		—		—
Chapter 7 bankruptcy(2)	6	104		102		(2		)	23	623		604		(19		)
Maturity date extension	—	—		—		—			1	751		751		—
Total	7	$	233	$	229	$	4		25	5,713		5,694		(19		)
(1) Excludes loans that were fully paid off or fully charged-off by period end. The pre-modification balance represents the balance outstanding prior to modification. The post-modification balance represents the outstanding balance at period end. (2) Chapter 7 bankruptcy loans where the debt has been legally discharged through the bankruptcy court and not reaffirmed. (3) This loan had debt forgiveness of $0.l million to the customer; however, the loan was previously charged off to a balance below the actual contractual balance.

	Six Months Ended June 30, 2014								Six Months Ended June 30, 2013
(dollars in thousands)	Number of Loans	Pre-Modification Outstanding Recorded Investment(1)		Post-Modification Outstanding Recorded Investment(1)		Total  Difference in Recorded Investment			Number of Loans	Pre-Modification Outstanding Recorded Investment(1)		Post-Modification Outstanding Recorded Investment(1)		Total  Difference in Recorded Investment
Commercial real estate
Principal deferral	1	$	129	$	127	$	(2	)	3	$	1,541	$	1,288	$	(253	)
Principal forgiveness(3)	—	—		—		—			1	4,339		4,339		—
Chapter 7 bankruptcy(2)	—	—		—		—			7	258		255		(3		)
Commercial and industrial
Principal deferral	—	—		—		—			1	392		387		(5		)
Maturity date extension	—	—		—		—			1	751		751		—
Chapter 7 bankruptcy(2)	1	287		286		(1		)	1	3		3		—
Commercial Construction
Maturity date extension	1	1,019		1,019		—			—	—		—		—
Residential mortgage
Principal deferral	—	—		—		—			2	153		153		—
Chapter 7 bankruptcy(2)	5	329		327		(2		)	8	353		344		(9		)
Home equity
Principal deferral	—	—		—		—			1	174		45		(129		)
Chapter 7 bankruptcy(2)	10	269		251		(18		)	23	648		640		(8		)
Installment and other consumer
Chapter 7 bankruptcy(2)	1	9		9		—			6	73		73		—
Total by Concession Type
Principal deferral	1	129		127		(2		)	7	2,260		1,873		(387		)
Principal forgiveness(3)	—	—		—		—			1	4,339		4,339		—
Maturity date extension	1	1,019		1,019		—			1	751		751		—
Chapter 7 bankruptcy(2)	17	894		873		(21		)	45	1,335		1,315		(20		)
Total	19	$	2,042	$	2,019	$	(23	)	54	$	8,685	8,278		(407		)
(1) Excludes loans that were fully paid off or fully charged-off by period end. The pre-modification balance represents the balance outstanding prior to modification. The post-modification balance represents the outstanding balance at period end. (2) Chapter 7 bankruptcy loans where the debt has been legally discharged through the bankruptcy court and not reaffirmed. (3) This loan had debt forgiveness of $0.l million to the customer; however, the loan was previously charged off to a balance below the actual contractual balance.

For the three months ended June 30, 2014, we modified two CRE loans totaling $1.2 million that were not considered to be TDRs. For the six months ended June 30, 2014, we modified three loans that were not considered to be TDRs, including a $0.4 million commercial and industrial, or C&I, loan and two CRE loans for $1.2 million. The modifications primarily represented instances where we were adequately compensated through additional collateral and a higher interest rate or there was an insignificant delay in payment. As of June 30, 2014 we have no commitments to lend additional funds on any TDRs.

Defaulted TDRs are defined as loans having a payment default of 90 days or more after the restructuring takes place. The following tables present a summary of TDRs which defaulted during the periods presented that had been restructured within the last twelve months prior to defaulting:

	Defaulted TDRs
	For the Three Months ended June 30, 2014			For the Three Months ended June 30, 2013
(dollars in thousands)	Number of Defaults	Recorded Investment		Number of Defaults		Recorded Investment
Commercial real estate	—	$	—	$	—	$	—
Commercial and Industrial	—	—		—		—
Commercial construction	—	—		—		—
Residential real estate	—	—		2		46
Home equity	—	—		2		33
Total	—	$	—	$	4	$	79
	Defaulted TDRs
	For the Six Months Ended June 30, 2014			For the Six Months Ended June 30, 2013
(dollars in thousands)	Number of Defaults	Recorded Investment		Number of Defaults		Recorded Investment
Commercial real estate	—	$	—	$	—	$	—
Commercial and Industrial	—	—		—		—
Commercial construction	—	—		—		—
Residential real estate	1	72		3		64
Home equity	—	—		4		151
Total	1	$	72	$	7	$	215

The following table is a summary of nonperforming assets as of the dates presented:

	Nonperforming Assets
(dollars in thousands)	June 30, 2014		December 31, 2013
Nonperforming Assets
Nonaccrual loans	$	9,698	$	12,387
Nonaccrual TDRs	5,241		10,067
Total nonaccrual loans	14,939		22,454
OREO	431		410
Total Nonperforming Assets	$	15,370	$	22,864

OREO consists of eight properties and is included in other assets in the Consolidated Balance Sheets. It is our policy to obtain OREO appraisals on an annual basis.

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Securities Available-for-Sale

6 Months Ended

Jun. 30, 2014

Investments, Debt and Equity Securities [Abstract]

Securities Available-for-Sale

SECURITIES AVAILABLE-FOR-SALE

The following table indicates the composition of the securities available-for-sale portfolio as of the dates presented:

	June 30, 2014									December 31, 2013
(dollars in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Obligations of U.S. government corporations and agencies	$	268,614	$	2,733	$	(1,099	)	$	270,248	$	235,181	$	2,151	$	(2,581	)	$	234,751
Collateralized mortgage obligations of U.S. government corporations and agencies	93,787		1,035		(218		)	94,604		63,776		601		(603		)	63,774
Residential mortgage-backed securities of U.S. government corporations and agencies	44,900		1,720		(231		)	46,389		47,934		1,420		(685		)	48,669
Commercial mortgage-backed securities of U.S. government corporations and agencies	40,098		224		(402		)	39,920		40,357		—		(1,305		)	39,052
Obligations of states and political subdivisions	124,648		4,017		(352		)	128,313		115,572		1,294		(2,602		)	114,264
Debt Securities	572,047		9,729		(2,302		)	579,474		502,820		5,466		(7,776		)	500,510
Marketable equity securities	7,579		1,435		—			9,014		7,579		1,336		—			8,915
Total	$	579,626	$	11,164	$	(2,302	)	$	588,488	$	510,399	$	6,802	$	(7,776	)	$	509,425

Realized gains and losses on the sale of securities are determined using the specific-identification method. The following table shows the composition of gross and net realized gains and losses for the periods presented:

	Three Months Ended June 30,				Six Months Ended June 30,
(dollars in thousands)	2014		2013		2014		2013
Gross realized gains	$	40	$	—	$	41	$	2
Gross realized losses	—		—		—		—
Net Realized Gains	$	40	$	—	$	41	$	2

The following tables indicate the fair value and the age of gross unrealized losses by investment category as of the dates presented:

	June 30, 2014
	Less Than 12 Months						12 Months or More						Total
(dollars in thousands)	Number of Securities	Fair Value		Unrealized Losses			Number of Securities	Fair Value		Unrealized Losses			Fair Value		Number of Securities	Unrealized Losses
Obligations of U.S. government corporations and agencies	2	$	19,741	$	(78	)	8	$	63,265	$	(1,021	)	$	83,006	10	$	(1,099	)
Collateralized mortgage obligations of U.S. government corporations and agencies	1	11,420		(218		)	—	—		—			11,420		1	(218		)
Residential mortgage-backed securities of U.S. government corporations and agencies	—	—		—			1	9,414		(231		)	9,414		1	(231		)
Commercial mortgage-backed securities of U.S. government corporations and agencies	1	10,009		(16		)	2	20,837		(386		)	30,846		3	(402		)
Obligations of states and political subdivisions	1	264		(1		)	3	15,975		(351		)	16,239		4	(352		)
Debt Securities	5	41,434		(313		)	14	109,491		(1,989		)	150,925		19	(2,302		)
Marketable equity securities	—	—		—			—	—		—			—		—	—
Total Temporarily Impaired Securities	5	$	41,434	$	(313	)	14	$	109,491	$	(1,989	)	$	150,925	19	$	(2,302	)
	December 31, 2013
	Less Than 12 Months						12 Months or More						Total
(dollars in thousands)	Number of Securities	Fair Value		Unrealized Losses			Number of Securities	Fair Value		Unrealized Losses			Fair Value		Number of Securities	Unrealized Losses
Obligations of U.S. government corporations and agencies	16	$	126,017	$	(2,581	)	—	$	—	$	—		$	126,017	16	$	(2,581	)
Collateralized mortgage obligations of U.S. government corporations and agencies	3	39,522		(603		)	—	—		—			39,522		3	(603		)
Residential mortgage-backed securities of U.S. government corporations and agencies	2	22,822		(685		)	—	—		—			22,822		2	(685		)
Commercial mortgage-backed securities of U.S. government corporations and agencies	4	39,052		(1,305		)	—	—		—			39,052		4	(1,305		)
Obligations of states and political subdivisions	16	47,529		(1,739		)	2	10,088		(863		)	57,617		18	(2,602		)
Debt Securities	41	274,942		(6,913		)	2	10,088		(863		)	285,030		43	(7,776		)
Marketable equity securities	—	—		—			—	—		—			—		—	—
Total Temporarily Impaired Securities	41	$	274,942	$	(6,913	)	2	$	10,088	$	(863	)	$	285,030	43	$	(7,776	)

We do not believe any individual unrealized loss as of June 30, 2014 represents an other than temporary impairment, or OTTI. As of June 30, 2014, the unrealized losses on 19 debt securities were attributable to changes in interest rates and not related to the credit quality of these securities. All debt securities are determined to be investment grade and are paying principal and interest according to the contractual terms of the security. There were no unrealized losses on marketable equity securities as of June 30, 2014. We do not intend to sell and it is not more likely than not that we will be required to sell any of the securities, referenced in the table above, in an unrealized loss position before recovery of their amortized cost.

The following table displays net unrealized gains and losses, net of tax on securities available for sale included in accumulated other comprehensive income/(loss) for the periods presented.

	June 30, 2014							December 31, 2013
(dollars in thousands)	Gross Unrealized Gains		Gross Unrealized Losses			Net Unrealized Gains/ (Losses)		Gross Unrealized Gains		Gross Unrealized Losses			Net Unrealized Gains/ (Losses)
Total unrealized gains/(losses) on securities available-for-sale	$	11,164	$	(2,302	)	$	8,862	$	6,802	$	(7,776	)	$	(974	)
Income tax expense/(benefit)	3,907		(806		)	3,101		2,381		(2,722		)	(341		)
Net unrealized gains/(losses), net of tax included in accumulated other comprehensive income/(loss)	$	7,257	$	(1,496	)	$	5,761	$	4,421	$	(5,054	)	$	(633	)

The amortized cost and fair value of securities available-for-sale at June 30, 2014, by contractual maturity, are included in the table below. Actual maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.

	June 30, 2014
(dollars in thousands)	Amortized Cost		Fair Value
Obligations of U.S. government corporations and agencies, and obligations of states and political subdivisions
Due in one year or less	$	24,049	$	24,289
Due after one year through five years	182,816		184,074
Due after five years through ten years	98,068		99,420
Due after ten years	88,329		90,778
	393,262		398,561
Collateralized mortgage obligations of U.S. government corporations and agencies	93,787		94,604
Residential mortgage-backed securities of U.S. government corporations and agencies	44,900		46,389
Commercial mortgage-backed securities of U.S. government corporations and agencies	40,098		39,920
Debt Securities	572,047		579,474
Marketable equity securities	7,579		9,014
Total	$	579,626	$	588,488

At June 30, 2014 and December 31, 2013, securities with carrying values of $273.5 million and $243.2 million were pledged for various regulatory and legal requirements.

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Securities Available-for-Sale (Tables)

6 Months Ended

Jun. 30, 2014

Investments, Debt and Equity Securities [Abstract]

Composition of Securities Available-for-Sale

The following table indicates the composition of the securities available-for-sale portfolio as of the dates presented:

	June 30, 2014									December 31, 2013
(dollars in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Obligations of U.S. government corporations and agencies	$	268,614	$	2,733	$	(1,099	)	$	270,248	$	235,181	$	2,151	$	(2,581	)	$	234,751
Collateralized mortgage obligations of U.S. government corporations and agencies	93,787		1,035		(218		)	94,604		63,776		601		(603		)	63,774
Residential mortgage-backed securities of U.S. government corporations and agencies	44,900		1,720		(231		)	46,389		47,934		1,420		(685		)	48,669
Commercial mortgage-backed securities of U.S. government corporations and agencies	40,098		224		(402		)	39,920		40,357		—		(1,305		)	39,052
Obligations of states and political subdivisions	124,648		4,017		(352		)	128,313		115,572		1,294		(2,602		)	114,264
Debt Securities	572,047		9,729		(2,302		)	579,474		502,820		5,466		(7,776		)	500,510
Marketable equity securities	7,579		1,435		—			9,014		7,579		1,336		—			8,915
Total	$	579,626	$	11,164	$	(2,302	)	$	588,488	$	510,399	$	6,802	$	(7,776	)	$	509,425

Schedule of Realized Gain (Loss)

Realized gains and losses on the sale of securities are determined using the specific-identification method. The following table shows the composition of gross and net realized gains and losses for the periods presented:

	Three Months Ended June 30,				Six Months Ended June 30,
(dollars in thousands)	2014		2013		2014		2013
Gross realized gains	$	40	$	—	$	41	$	2
Gross realized losses	—		—		—		—
Net Realized Gains	$	40	$	—	$	41	$	2

Fair Value and Age of Gross Unrealized Losses by Investment Category

The following tables indicate the fair value and the age of gross unrealized losses by investment category as of the dates presented:

	June 30, 2014
	Less Than 12 Months						12 Months or More						Total
(dollars in thousands)	Number of Securities	Fair Value		Unrealized Losses			Number of Securities	Fair Value		Unrealized Losses			Fair Value		Number of Securities	Unrealized Losses
Obligations of U.S. government corporations and agencies	2	$	19,741	$	(78	)	8	$	63,265	$	(1,021	)	$	83,006	10	$	(1,099	)
Collateralized mortgage obligations of U.S. government corporations and agencies	1	11,420		(218		)	—	—		—			11,420		1	(218		)
Residential mortgage-backed securities of U.S. government corporations and agencies	—	—		—			1	9,414		(231		)	9,414		1	(231		)
Commercial mortgage-backed securities of U.S. government corporations and agencies	1	10,009		(16		)	2	20,837		(386		)	30,846		3	(402		)
Obligations of states and political subdivisions	1	264		(1		)	3	15,975		(351		)	16,239		4	(352		)
Debt Securities	5	41,434		(313		)	14	109,491		(1,989		)	150,925		19	(2,302		)
Marketable equity securities	—	—		—			—	—		—			—		—	—
Total Temporarily Impaired Securities	5	$	41,434	$	(313	)	14	$	109,491	$	(1,989	)	$	150,925	19	$	(2,302	)
	December 31, 2013
	Less Than 12 Months						12 Months or More						Total
(dollars in thousands)	Number of Securities	Fair Value		Unrealized Losses			Number of Securities	Fair Value		Unrealized Losses			Fair Value		Number of Securities	Unrealized Losses
Obligations of U.S. government corporations and agencies	16	$	126,017	$	(2,581	)	—	$	—	$	—		$	126,017	16	$	(2,581	)
Collateralized mortgage obligations of U.S. government corporations and agencies	3	39,522		(603		)	—	—		—			39,522		3	(603		)
Residential mortgage-backed securities of U.S. government corporations and agencies	2	22,822		(685		)	—	—		—			22,822		2	(685		)
Commercial mortgage-backed securities of U.S. government corporations and agencies	4	39,052		(1,305		)	—	—		—			39,052		4	(1,305		)
Obligations of states and political subdivisions	16	47,529		(1,739		)	2	10,088		(863		)	57,617		18	(2,602		)
Debt Securities	41	274,942		(6,913		)	2	10,088		(863		)	285,030		43	(7,776		)
Marketable equity securities	—	—		—			—	—		—			—		—	—
Total Temporarily Impaired Securities	41	$	274,942	$	(6,913	)	2	$	10,088	$	(863	)	$	285,030	43	$	(7,776	)

Unrealized Gains and Losses, Net of Tax on Securities Available for Sale

The following table displays net unrealized gains and losses, net of tax on securities available for sale included in accumulated other comprehensive income/(loss) for the periods presented.

	June 30, 2014							December 31, 2013
(dollars in thousands)	Gross Unrealized Gains		Gross Unrealized Losses			Net Unrealized Gains/ (Losses)		Gross Unrealized Gains		Gross Unrealized Losses			Net Unrealized Gains/ (Losses)
Total unrealized gains/(losses) on securities available-for-sale	$	11,164	$	(2,302	)	$	8,862	$	6,802	$	(7,776	)	$	(974	)
Income tax expense/(benefit)	3,907		(806		)	3,101		2,381		(2,722		)	(341		)
Net unrealized gains/(losses), net of tax included in accumulated other comprehensive income/(loss)	$	7,257	$	(1,496	)	$	5,761	$	4,421	$	(5,054	)	$	(633	)

Amortized Cost and Fair Value of Available-for-Sale Securities

The amortized cost and fair value of securities available-for-sale at June 30, 2014, by contractual maturity, are included in the table below. Actual maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.

	June 30, 2014
(dollars in thousands)	Amortized Cost		Fair Value
Obligations of U.S. government corporations and agencies, and obligations of states and political subdivisions
Due in one year or less	$	24,049	$	24,289
Due after one year through five years	182,816		184,074
Due after five years through ten years	98,068		99,420
Due after ten years	88,329		90,778
	393,262		398,561
Collateralized mortgage obligations of U.S. government corporations and agencies	93,787		94,604
Residential mortgage-backed securities of U.S. government corporations and agencies	44,900		46,389
Commercial mortgage-backed securities of U.S. government corporations and agencies	40,098		39,920
Debt Securities	572,047		579,474
Marketable equity securities	7,579		9,014
Total	$	579,626	$	588,488

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Segments

6 Months Ended

Jun. 30, 2014

Segment Reporting [Abstract]

Segments

SEGMENTS

We manage three reportable operating segments including Community Banking, Insurance and Wealth Management.

• Our Community Banking segment offers services which include accepting time and demand deposit accounts, originating commercial and consumer loans and providing letters of credit and credit card services.

• Our Insurance segment includes a full-service insurance agency offering commercial property and casualty insurance, group life and health coverage, employee benefit solutions and personal insurance lines.

• Our Wealth Management segment offers discount brokerage services, services as executor and trustee under wills and deeds, guardian and custodian of employee benefits and other trust and brokerage services, as well as a registered investment advisor that manages private investment accounts for individuals and institutions.

The following table represents total assets by reportable operating segment as of the dates presented:

(dollars in thousands)	June 30, 2014		December 31, 2013
Community Banking	$	4,778,233	$	4,524,939
Insurance	7,715		6,926
Wealth Management	2,082		1,325
Total Assets	$	4,788,030	$	4,533,190

The following tables provide financial information for our three segments for the three and six month periods ended June 30, 2014 and 2013. The financial results of the business segments include allocations for shared services based on an internal analysis that supports line of business performance measurement. Shared services include expenses such as employee benefits, occupancy expense, computer support and corporate overhead. Even with these allocations, the financial results are not necessarily indicative of the business segments’ financial condition and results of operations if they existed as independent entities. The information provided under the caption “Eliminations” represents operations not considered to be reportable segments and/or general operating expenses and eliminations and adjustments, which are necessary for purposes of reconciling to the Consolidated Financial Statements.

	Three Months Ended June 30, 2014
(dollars in thousands)	Community Banking			Insurance		Wealth Management		Eliminations			Consolidated
Interest income	$	39,845		$	—	$	136	$	(109	)	$	39,872
Interest expense	3,415			—		—		(398		)	3,017
Net interest income	36,430			—		136		289			36,855
Provision for loan losses	(1,134		)	—		—		—			(1,134		)
Noninterest income	7,522			1,245		2,828		176			11,771
Noninterest expense	25,092			1,044		2,442		465			29,043
Depreciation expense	805			13		7		—			825
Amortization of intangible assets	274			13		10		—			297
Provision for income taxes	4,637			61		177		—			4,875
Net Income	$	14,278		$	114	$	328	$	—		$	14,720

	Three Months Ended June 30, 2013
(dollars in thousands)	Community Banking			Insurance		Wealth Management		Eliminations			Consolidated
Interest income	$	38,505		$	—	$	135	$	(87	)	$	38,553
Interest expense	4,663			—		—		(706		)	3,957
Net interest income	33,842			—		135		619			34,596
Provision for loan losses	1,023			—		—		—			1,023
Noninterest income	8,467			1,349		2,812		239			12,867
Noninterest expense	21,786			1,105		2,389		1,797			27,077
Depreciation expense	876			12		8		—			896
Amortization of intangible assets	387			13		13		—			413
Provision (benefit) for income taxes	4,592			77		221		(939		)	3,951
Net Income	$	13,645		$	142	$	316	$	—		$	14,103
	Six Months Ended June 30, 2014
(dollars in thousands)	Community Banking			Insurance		Wealth Management		Eliminations			Consolidated
Interest income	$	78,475		$	—	$	310	$	(248	)	$	78,537
Interest expense	6,897			—		—		(806		)	6,091
Net interest income	71,578			—		310		558			72,446
Provision for loan losses	(845		)	—		—		—			(845		)
Noninterest income	14,375			2,766		5,764		282			23,187
Noninterest expense	49,066			2,199		4,716		840			56,821
Depreciation expense	1,607			25		13		—			1,645
Amortization of intangible assets	566			25		22		—			613
Provision for income taxes	8,002			181		463		—			8,646
Net Income	$	27,557		$	336	$	860	$	—		$	28,753
	Six Months Ended June 30, 2013
(dollars in thousands)	Community Banking			Insurance		Wealth Management		Eliminations			Consolidated
Interest income	$	76,194		$	1	$	273	$	(72	)	$	76,396
Interest expense	9,454			—		—		(1,323		)	8,131
Net interest income	66,740			1		273		1,251			68,265
Provision for loan losses	3,330			—		—		—			3,330
Noninterest income	18,823			2,947		5,386		517			27,673
Noninterest expense	46,427			2,552		4,878		3,468			57,325
Depreciation expense	1,795			22		16		—			1,833
Amortization of intangible assets	792			26		26		—			844
Provision (benefit) for income taxes	7,438			122		313		(1,700		)	6,173
Net Income	$	25,781		$	226	$	426	$	—		$	26,433

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Borrowings

6 Months Ended

Jun. 30, 2014

Debt Disclosure [Abstract]

Borrowings

BORROWINGS

Short-term borrowings are for terms under one year and were comprised of securities sold under repurchase agreements, or REPOs, and Federal Home Loan Bank, or FHLB, advances. Our REPOs were with our local retail customers. Securities pledged as collateral under these REPO financing arrangements cannot be sold or repledged by the secured party and are therefore accounted for as a secured borrowing. FHLB advances are for various terms secured by a blanket lien on our residential mortgages and other real estate secured loans.

Long-term borrowings are for original terms greater than one year and were comprised of FHLB advances, a capital lease and junior subordinated debt securities. Long-term FHLB advances have the same collateral requirements as their short-term equivalents. We had total long-term borrowings outstanding of $17.3 million at a fixed rate and $48.7 million at a variable rate at June 30, 2014, excluding our capital lease of $0.2 million.

Information pertaining to borrowings is summarized in the table below as of the dates presented:

	June 30, 2014				December 31, 2013
(dollars in thousands)	Balance		Weighted Average Rate		Balance		Weighted Average Rate
Short-term borrowings
Securities sold under repurchase agreements	$	25,269	0.01	%	$	33,847	0.01	%
Short-term borrowings	185,000		0.28	%	140,000		0.30	%
Total short-term borrowings	210,269		0.25	%	173,847		0.24	%
Long-term borrowings
Other long-term borrowings	20,636		2.98	%	21,810		3.01	%
Junior subordinated debt securities	45,619		2.69	%	45,619		2.70	%
Total long-term borrowings	66,255		2.78	%	67,429		2.80	%
Total Borrowings	$	276,524	0.85	%	$	241,276	0.96	%

We had total borrowings at June 30, 2014 and December 31, 2013 at the FHLB of Pittsburgh of $205.4 million and $161.6 million. This consisted of $185.0 million in short-term borrowings and $20.4 million in long-term borrowings at June 30, 2014. Our maximum borrowing capacity with the FHLB of Pittsburgh was $1.6 billion at June 30, 2014, with a remaining borrowing availability of $1.4 billion.

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Derivative Instruments and Hedging Activities - Schedule of Gross Amounts of Derivative Assets and Derivative Liabilities (Detail) (Not Designated as Hedging Instruments [Member], USD $) In Thousands, unless otherwise specified	Jun. 30, 2014		Dec. 31, 2013
Not Designated as Hedging Instruments [Member]
Derivative Asset [Abstract]
Gross amounts recognized	$ 14,349		$ 14,012
Gross amounts offset	(267)		(314)
Net amounts presented in the Consolidated Balance Sheets	14,082		13,698
Gross amounts not offset	0	[1]	0	[1]
Net Amount	14,082		13,698
Derivative Liability [Abstract]
Gross amounts recognized	14,317		13,961
Gross amounts offset	(267)		(314)
Net amounts presented in the Consolidated Balance Sheets	14,050		13,647
Gross amounts not offset	(11,559)	[1]	(12,611)	[1]
Net Amount	$ 2,491		$ 1,036

[1] Amounts represent posted collateral.

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Allowance for Loan Losses

6 Months Ended

Jun. 30, 2014

Receivables [Abstract]

Allowance for Loan Losses

We maintain an allowance for loan losses, or ALL, at a level determined to be adequate to absorb estimated probable credit losses inherent in the loan portfolio as of the balance sheet date. We develop and document a systematic ALL methodology based on the following portfolio segments: 1) CRE, 2) C&I, 3) Commercial Construction, 4) Consumer Real Estate and 5) Other Consumer.

The following are key risks within each portfolio segment:

CRE—Loans secured by commercial purpose real estate, including both owner occupied properties and investment properties, for various purposes such as hotels, strip malls and apartments. Operations of the individual projects as well as global cash flows of the debtors are the primary sources of repayment for these loans. The condition of the local economy is an important indicator of risk, but there are also more specific risks depending on the collateral type as well as the business prospects of the lessee, if the project is not owner occupied.

C&I—Loans made to operating companies or manufacturers for the purpose of production, operating capacity, accounts receivable, inventory or equipment financing. Cash flow from the operations of the company is the primary source of repayment for these loans. The condition of the local economy is an important indicator of risk, but there are also more specific risks depending on the industry of the company. Collateral for these types of loans often do not have sufficient value in a distressed or liquidation scenario to satisfy the outstanding debt.

Commercial Construction—Loans made to finance construction of buildings or other structures, as well as to finance the acquisition and development of raw land for various purposes. While the risk of these loans is generally confined to the construction period, if there are problems, the project may not be complete, and as such, may not provide sufficient cash flow on its own to service the debt or have sufficient value in a liquidation to cover the outstanding principal. The condition of the local economy is an important indicator of risk, but there are also more specific risks depending on the type of project and the experience and resources of the developer.

Consumer Real Estate—Loans secured by first and second liens such as home equity loans, home equity lines of credit and 1-4 family residences, including purchase money mortgages. The primary source of repayment for these loans is the income and assets of the borrower. The condition of the local economy, in particular the unemployment rate, is an important indicator of risk for this segment. The state of the local housing market can also have a significant impact on this segment because low demand and/or declining home values can limit the ability of borrowers to sell a property and satisfy the debt.

Other Consumer—Loans made to individuals that may be secured by assets other than 1-4 family residences, as well as unsecured loans. This segment includes auto loans, unsecured loans and lines and credit cards. The primary source of repayment for these loans is the income and assets of the borrower. The condition of the local economy, in particular the unemployment rate, is an important indicator of risk for this segment. The value of the collateral, if there is any, is less likely to be a source of repayment due to less certain collateral values.

We further assess risk within each portfolio segment by pooling loans with similar risk characteristics. For the commercial loan classes, the most important indicator of risk is the internally assigned risk rating, including pass, special mention and substandard. Consumer loans are pooled by type of collateral, lien position and loan to value ratio for consumer real estate loans. Historical loss rates are applied to these loan pools to determine the reserve for loans collectively evaluated for impairment.

We continually monitor our ALL methodology to ensure that it is responsive to the current economic environment. No changes were made to our ALL methodology for the six months ended June 30, 2014.

Management monitors various credit quality indicators for both the commercial and consumer loan portfolios, including delinquency, nonperforming status and changes in risk ratings on a monthly basis.

The following tables present the age analysis of past due loans segregated by class of loans as of June 30, 2014 and December 31, 2013:

	June 30, 2014
(dollars in thousands)	Current		30-59 Days Past Due		60-89 Days Past Due		Nonaccrual		Total Past Due		Total Loans
Commercial real estate	$	1,629,928	$	753	$	44	$	5,658	$	6,455	$	1,636,383
Commercial and industrial	918,846		559		249		2,537		3,345		922,191
Commercial construction	185,428		—		1,014		1,869		2,883		188,311
Residential mortgage	488,551		1,022		898		2,118		4,038		492,589
Home equity	412,851		1,466		478		1,431		3,375		416,226
Installment and other consumer	65,380		364		68		26		458		65,838
Consumer construction	3,541		—		—		—		—		3,541
Loans held for sale	1,802		—		—		1,300		1,300		3,102
Totals	$	3,706,327	$	4,164	$	2,751	$	14,939	$	21,854	$	3,728,181
	December 31, 2013
(dollars in thousands)	Current		30-59 Days Past Due		60-89 Days Past Due		Nonaccrual		Total Past Due		Total Loans
Commercial real estate	$	1,595,590	$	1,209	$	207	$	10,750	$	12,166	$	1,607,756
Commercial and industrial	836,276		2,599		278		3,296		6,173		842,449
Commercial construction	139,133		1,049		751		2,742		4,542		143,675
Residential mortgage	481,260		828		1,666		3,338		5,832		487,092
Home equity	408,777		2,468		659		2,291		5,418		414,195
Installment and other consumer	67,420		382		44		37		463		67,883
Consumer construction	3,149		—		—		—		—		3,149
Loans held for sale	2,136		—		—		—		—		2,136
Totals	$	3,533,741	$	8,535	$	3,605	$	22,454	$	34,594	$	3,568,335

We continually monitor the commercial loan portfolio through an internal risk rating system. Loan risk ratings are assigned based upon the creditworthiness of the borrower and are reviewed on an ongoing basis according to our internal policies. Loans within the pass rating generally have a lower risk of loss than loans risk rated as special mention or substandard.

Our risk ratings are consistent with regulatory guidance and are as follows:

Pass—The loan is currently performing and is of high quality.

Special Mention—A special mention loan has potential weaknesses that warrant management’s close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects or in the strength of our credit position at some future date. Economic and market conditions, beyond the borrower’s control, may in the future necessitate this classification.

Substandard—A substandard loan is not adequately protected by the net worth and/or paying capacity of the borrower or by the collateral pledged, if any. Substandard loans have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. These loans are characterized by the distinct possibility that we will sustain some loss if the deficiencies are not corrected.

The following tables summarize the recorded investment in commercial loan classes by internally assigned risk ratings as of the dates presented:

	June 30, 2014
(dollars in thousands)	Commercial Real Estate		% of Total		Commercial and Industrial		% of Total		Commercial Construction		% of Total		Total		% of Total
Pass	$	1,563,882	95.6	%	$	872,686	94.6	%	$	167,267	88.8	%	$	2,603,835	94.8	%
Special mention	45,275		2.8	%	33,966		3.7	%	12,882		6.8	%	92,123		3.4	%
Substandard	27,226		1.6	%	15,539		1.7	%	8,162		4.4	%	50,927		1.8	%
Total	$	1,636,383	100	%	$	922,191	100.0	%	$	188,311	100.0	%	$	2,746,885	100.0	%
	December 31, 2013
(dollars in thousands)	Commercial Real Estate		% of Total		Commercial and Industrial		% of Total		Commercial Construction		% of Total		Total		% of Total
Pass	$	1,519,720	94.5	%	$	792,029	94.0	%	$	119,177	82.9	%	$	2,430,926	93.7	%
Special mention	57,073		3.6	%	34,085		4.1	%	15,621		10.9	%	106,779		4.1	%
Substandard	30,963		1.9	%	16,335		1.9	%	8,877		6.2	%	56,175		2.2	%
Total	$	1,607,756	100.0	%	$	842,449	100.0	%	$	143,675	100.0	%	$	2,593,880	100.0	%

We monitor the delinquent status of the consumer portfolio on a monthly basis. Loans are considered nonperforming when interest and principal are 90 days or more past due or management has determined that a material deterioration in the borrower’s financial condition exists. The risk of loss is generally highest for nonperforming loans.

The following tables indicate the recorded investment in consumer loan classes by performing and nonperforming status as of the dates presented:

	June 30, 2014
(dollars in thousands)	Residential Mortgage		% of Total		Home Equity		% of Total		Installment and other consumer		% of Total		Consumer Construction		% of Total		Total		% of Total
Performing	$	490,471	99.6	%	$	414,795	99.7	%	$	65,812	99.9	%	$	3,541	100.0	%	$	974,619	99.6	%
Nonperforming	2,118		0.4	%	1,431		0.3	%	26		0.1	%	—		—	%	3,575		0.4	%
Total	$	492,589	100.0	%	$	416,226	100.0	%	$	65,838	100.0	%	$	3,541	100.0	%	$	978,194	100.0	%
	December 31, 2013
(dollars in thousands)	Residential Mortgage		% of Total		Home Equity		% of Total		Installment and other consumer		% of Total		Consumer Construction		% of Total		Total		% of Total
Performing	$	483,754	99.3	%	$	411,904	99.4	%	$	67,846	99.9	%	$	3,149	100.0	%	$	966,653	99.4	%
Nonperforming	3,338		0.7	%	2,291		0.6	%	37		0.1	%	—		—	%	5,666		0.6	%
Total	$	487,092	100.0	%	$	414,195	100.0	%	$	67,883	100.0	%	$	3,149	100.0	%	$	972,319	100.0	%

We individually evaluate all substandard and nonaccrual commercial loans greater than $0.5 million for impairment. Loans are considered to be impaired when based upon current information and events it is probable that we will be unable to collect all principal and interest payments due according to the original contractual terms of the loan agreement. All TDRs are considered to be impaired loans and will be reported as an impaired loan for the remaining life of the loan, unless the restructuring agreement specifies an interest rate equal to or greater than the rate that would be accepted at the time of the restructuring for a new loan with comparable risk and it is expected that the remaining principal and interest will be fully collected according to the restructured agreement. For all TDRs, regardless of size, as well as all other impaired loans, we conduct further analysis to determine the probable loss and assign a specific reserve to the loan if deemed appropriate.

The following table presents investments in loans considered to be impaired and related information on those impaired loans for the periods presented:

	June 30, 2014						December 31, 2013
(dollars in thousands)	Recorded Investment		Unpaid Principal Balance		Related Allowance		Recorded Investment		Unpaid Principal Balance		Related Allowance
Without a related allowance recorded:
Commercial real estate	$	21,228	$	28,296	$	—	$	26,968	$	35,474	$	—
Commercial and industrial	9,545		9,660		—		9,580		9,703		—
Commercial construction	8,179		11,866		—		7,391		12,353		—
Consumer real estate	7,082		7,629		—		8,026		9,464		—
Other consumer	107		109		—		124		128		—
Total without a Related Allowance Recorded	46,141		57,560		—		52,089		67,122		—
With a related allowance recorded:
Commercial real estate	—		—		—		—		—		—
Commercial and industrial	—		—		—		—		—		—
Commercial construction	—		—		—		681		1,383		25
Consumer real estate	47		47		47		53		53		53
Other consumer	21		21		11		33		33		19
Total with a Related Allowance Recorded	68		68		58		767		1,469		97
Total:
Commercial real estate	21,228		28,296		—		26,968		35,474		—
Commercial and industrial	9,545		9,660		—		9,580		9,703		—
Commercial construction	8,179		11,866		—		8,072		13,736		25
Consumer real estate	7,129		7,676		47		8,079		9,517		53
Other consumer	128		130		11		157		161		19
Total	$	46,209	$	57,628	$	58	$	52,856	$	68,591	$	97

As of June 30, 2014, CRE loans of $21.2 million comprised 46 percent of the total impaired loans of $46.2 million. These impaired loans are collateralized primarily by commercial real estate properties such as retail or strip malls, office buildings and various other types of commercial purpose properties. These loans are generally considered collateral dependent and charge-offs are recorded when a confirmed loss exists. Approximately $7.9 million of charge-offs have been recorded relating to these CRE loans over the life of these loans. It is our policy to order appraisals on an annual basis on impaired loans or sooner if facts and circumstances warrant. As of June 30, 2014, an estimated fair value less cost to sell of approximately $34.7 million existed for CRE impaired loans. We have current appraisals on all but $0.6 million of the $21.2 million of impaired CRE loans. We have not ordered an appraisal on this loan due to an outstanding settlement agreement with the borrower which would result in the collection of the remaining recorded investment in the loan.

The following tables summarize investments in loans considered to be impaired and related information on those impaired loans for the periods presented:

	For the Three Months Ended
	June 30, 2014				June 30, 2013
(dollars in thousands)	Average Recorded Investment		Interest Income Recognized		Average Recorded Investment		Interest Income Recognized
Without a related allowance recorded:
Commercial real estate	$	21,382	$	159	$	30,956	$	174
Commercial and industrial	9,317		57		12,452		66
Commercial construction	8,279		57		16,376		87
Consumer real estate	7,166		100		8,708		156
Other consumer	109		1		114		2
Total without a Related Allowance Recorded	46,253		374		68,606		485
With a related allowance recorded:
Commercial real estate	—		—		2,084		—
Commercial and industrial	—		—		—		—
Commercial construction	—		—		—		—
Consumer real estate	48		1		86		4
Other consumer	22		—		28		1
Total with a Related Allowance Recorded	70		1		2,198		5
Total:
Commercial real estate	21,382		159		33,040		174
Commercial and industrial	9,317		57		12,452		66
Commercial construction	8,279		57		16,376		87
Consumer real estate	7,214		101		8,794		160
Other consumer	131		1		142		3
Total	$	46,323	$	375	$	70,804	$	490

	For the Six Months Ended
	June 30, 2014				June 30, 2013
(dollars in thousands)	Average Recorded Investment		Interest Income Recognized		Average Recorded Investment		Interest Income Recognized
Without a related allowance recorded:
Commercial real estate	$	21,980	$	329	$	31,181	$	415
Commercial and industrial	9,066		114		12,449		135
Commercial construction	8,301		114		16,854		221
Consumer real estate	7,260		203		9,194		215
Other consumer	112		2		106		2
Total without a Related Allowance Recorded	46,719		762		69,784		988
With a related allowance recorded:
Commercial real estate	$	—	$	—	3,282		$	—
Commercial and industrial	—		—		—		—
Commercial construction	—		—		—		—
Consumer real estate	50		2		43		4
Other consumer	23		1		14		1
Total with a Related Allowance Recorded	73		3		3,339		5
Total:
Commercial real estate	21,980		329		34,463		415
Commercial and industrial	9,066		114		12,449		135
Commercial construction	8,301		114		16,854		221
Consumer real estate	7,310		205		9,237		219
Other consumer	135		3		120		3
Total	$	46,792	$	765	$	73,123	$	993

The following tables detail activity in the ALL for the periods presented:

	Three Months Ended June 30, 2014
(dollars in thousands)	Commercial Real Estate			Commercial and Industrial			Commercial Construction			Consumer Real Estate			Other Consumer			Total Loans
Balance at beginning of period	$	19,880		$	13,979		$	5,183		$	6,408		$	1,166		$	46,616
Charge-offs	(1,737		)	(743		)	(664		)	(425		)	(177		)	(3,746		)
Recoveries	1,294			2,936			324			164			126			4,844
Net Recoveries/ (Charge-offs)	(443		)	2,193			(340		)	(261		)	(51		)	1,098
Provision for loan losses	1,296			(3,168		)	(84		)	558			264			(1,134		)
Balance at End of Period	$	20,733		$	13,004		$	4,759		$	6,705		$	1,379		$	46,580
	Three Months Ended June 30, 2013
(dollars in thousands)	Commercial Real Estate			Commercial and Industrial			Commercial Construction			Consumer Real Estate			Other Consumer			Total Loans
Balance at beginning of period	$	24,442		$	8,676		$	6,603		$	5,259		$	956		$	45,936
Charge-offs	(1,170		)	(563		)	(54		)	(743		)	(399		)	(2,929		)
Recoveries	1,572			190			2			225			86			2,075
Net (Charge-offs)/ Recoveries	402			(373		)	(52		)	(518		)	(313		)	(854		)
Provision for loan losses	(1,360		)	820			(739		)	1,914			388			1,023
Balance at End of Period	$	23,484		$	9,123		$	5,812		$	6,655		$	1,031		$	46,105
	Six Months Ended June 30, 2014
(dollars in thousands)	Commercial Real Estate			Commercial and Industrial			Commercial Construction			Consumer Real Estate			Other Consumer			Total Loans
Balance at beginning of period	$	18,921		$	14,433		$	5,374		$	6,362		$	1,165		$	46,255
Charge-offs	(2,004		)	(1,033		)	(692		)	(547		)	(445		)	(4,721		)
Recoveries	1,834			3,249			375			223			210			5,891
Net Recoveries/ (Charge-offs)	(170		)	2,216			(317		)	(324		)	(235		)	1,170
Provision for loan losses	1,982			(3,645		)	(298		)	667			449			(845		)
Balance at End of Period	$	20,733		$	13,004		$	4,759		$	6,705		$	1,379		$	46,580
	Six Months Ended June 30, 2013
(dollars in thousands)	Commercial Real Estate			Commercial and Industrial			Commercial Construction			Consumer Real Estate			Other Consumer			Total Loans
Balance at beginning of period	$	25,246		$	7,759		$	7,500		$	5,058		$	921		$	46,484
Charge-offs	(2,809		)	(1,923		)	(443		)	(1,237		)	(651		)	(7,063		)
Recoveries	2,322			290			55			508			179			3,354
Net (Charge-offs)/ Recoveries	(487		)	(1,633		)	(388		)	(729		)	(472		)	(3,709		)
Provision for loan losses	(1,275		)	2,997			(1,300		)	2,326			582			3,330
Balance at End of Period	$	23,484		$	9,123		$	5,812		$	6,655		$	1,031		$	46,105

The following tables present the ALL and recorded investments in loans by category as of June 30, 2014 and December 31, 2013:

	June 30, 2014
	Allowance for Loan Losses						Portfolio Loans
(dollars in thousands)	Individually Evaluated for Impairment		Collectively Evaluated for Impairment		Total		Individually Evaluated for Impairment		Collectively Evaluated for Impairment		Total
Commercial real estate	$	—	$	20,733	$	20,733	$	21,228	$	1,615,155	$	1,636,383
Commercial and industrial	—		13,004		13,004		9,545		912,646		922,191
Commercial construction	—		4,759		4,759		8,179		180,132		188,311
Consumer real estate	47		6,658		6,705		7,129		905,227		912,356
Other consumer	11		1,368		1,379		128		65,710		65,838
Total	$	58	$	46,522	$	46,580	$	46,209	$	3,678,870	$	3,725,079
	December 31, 2013
	Allowance for Loan Losses						Portfolio Loans
(dollars in thousands)	Individually Evaluated for Impairment		Collectively Evaluated for Impairment		Total		Individually Evaluated for Impairment		Collectively Evaluated for Impairment		Total
Commercial real estate	$	—	$	18,921	$	18,921	$	26,968	$	1,580,788	$	1,607,756
Commercial and industrial	—		14,433		14,433		9,580		832,869		842,449
Commercial construction	25		5,349		5,374		8,072		135,603		143,675
Consumer real estate	53		6,309		6,362		8,079		896,357		904,436
Other consumer	19		1,146		1,165		157		67,726		67,883
Total	$	97	$	46,158	$	46,255	$	52,856	$	3,513,343	$	3,566,199

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Derivative Instruments and Hedging Activities

6 Months Ended

Jun. 30, 2014

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Instruments and Hedging Activities

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES

Interest Rate Swaps

Interest rate swaps are contracts in which a series of interest rate flows (fixed and variable) are exchanged over a prescribed period. The notional amounts on which the interest payments are based are not exchanged. These derivative positions relate to transactions in which we enter into an interest rate swap with a commercial customer while at the same time entering into an offsetting interest rate swap with another financial institution. In connection with each transaction, we agree to pay interest to the customer on a notional amount at a variable interest rate and receive interest from the customer on the same notional amount at a fixed rate. At the same time, we agree to pay another financial institution the same fixed interest rate on the same notional amount and receive the same variable interest rate on the same notional amount. The transaction allows our customer to effectively convert a variable rate loan to a fixed rate loan with us receiving a variable rate. These agreements could have floors or caps on the contracted interest rates.

Pursuant to our agreements with various financial institutions, we may receive collateral or may be required to post collateral based upon mark-to-market positions. Beyond unsecured threshold levels, collateral in the form of cash or securities may be made available to counterparties of interest rate swap transactions. Based upon our current positions and related future collateral requirements relating to them, we believe any effect on our cash flow or liquidity position to be immaterial.

Derivatives contain an element of credit risk, such as the possibility that we will incur a loss because a counterparty, which may be a financial institution or a customer, fails to meet its contractual obligations. All derivative contracts with financial institutions may be executed only with counterparties approved by our Asset and Liability Committee, or ALCO, and derivatives with customers may only be executed with customers within credit exposure limits approved by our Senior Loan Committee. Interest rate swaps are considered derivatives, but are not accounted for using hedge accounting. As such, changes in the fair value of the derivatives are recorded in current earnings and included in other noninterest income in the Consolidated Statements of Comprehensive Income.

Interest Rate Lock Commitments and Forward Sale Contracts

In the normal course of business, we sell originated mortgage loans into the secondary mortgage loan market. We also offer interest rate lock commitments to potential borrowers. The commitments are generally for 60 days and guarantee a specified interest rate for a loan if underwriting standards are met, but the commitment does not obligate the potential borrower to close on the loan. Accordingly, some commitments expire prior to becoming loans. We can encounter pricing risk if interest rates increase significantly before the loan can be closed and sold. We may utilize forward sale contracts in order to mitigate this pricing risk. Whenever a customer desires these products, a mortgage originator quotes a secondary market rate guaranteed for that day by the investor. The rate lock is executed between the mortgagee and us and in turn a forward sale contract may be executed between us and the investor. Both the interest rate lock commitment and the corresponding forward sale contract for each customer are considered derivatives, but are not accounted for using hedge accounting. As such, changes in the fair value of the derivatives during the commitment period are recorded in current earnings and included in mortgage banking in the Consolidated Statements of Comprehensive Income.

The following table indicates the amounts representing the value of derivative assets and derivative liabilities as of the dates presented:

	Derivatives (included in Other Assets)				Derivatives (included in Other Liabilities)
(dollars in thousands)	June 30, 2014		December 31, 2013		June 30, 2014		December 31, 2013
Derivatives not Designated as Hedging Instruments
Interest Rate Swap Contracts—Commercial Loans
Fair value	$	14,082	$	13,698	$	14,050	$	13,647
Notional amount	245,865		261,754		245,865		261,754
Collateral posted	—		—		11,559		12,611
Interest Rate Lock Commitments—Mortgage Loans
Fair value	292		85		—		—
Notional amount	9,594		3,989		—		—
Forward Sale Contracts—Mortgage Loans
Fair value	—		34		59		—
Notional amount	$	—	$	5,250	$	7,210	$	—

Presenting offsetting derivatives that are subject to legally enforceable netting arrangements with the same party is permitted. For example, we may have a derivative asset as well as a derivative liability with the same counterparty to a swap transaction and are permitted to offset the asset position and the liability position resulting in a net presentation.

The following table indicates the gross amounts of commercial loan swap derivative assets and derivative liabilities, the amounts offset and the carrying values in the Consolidated Balance Sheets as of the dates presented:

	Derivatives (included in Other Assets)						Derivatives (included in Other Liabilities)
(dollars in thousands)	June 30, 2014			December 31, 2013			June 30, 2014			December 31, 2013
Derivatives not Designated as Hedging Instruments
Gross amounts recognized	$	14,349		$	14,012		$	14,317		$	13,961
Gross amounts offset	(267		)	(314		)	(267		)	(314		)
Net amounts presented in the Consolidated Balance Sheets	14,082			13,698			14,050			13,647
Gross amounts not offset(1)	—			—			(11,559		)	(12,611		)
Net Amount	$	14,082		$	13,698		$	2,491		$	1,036

⁽¹⁾ Amounts represent posted collateral.

The following table indicates the gain or loss recognized in income on derivatives for the periods presented:

	Three Months Ended June 30,						Six Months Ended June 30,
(dollars in thousands)	2014			2013			2014			2013
Derivatives not Designated as Hedging Instruments
Interest rate swap contracts—commercial loans	$	(11	)	$	(27	)	$	(19	)	$	(156	)
Interest rate lock commitments—mortgage loans	199			(266		)	207			(492		)
Forward sale contracts—mortgage loans	(64		)	381			(93		)	405
Total Derivatives Gain (Loss)	$	124		$	88		$	95		$	(243	)

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Commitments and Contingencies

6 Months Ended

Jun. 30, 2014

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

COMMITMENTS AND CONTINGENCIES

Commitments

In the normal course of business, we offer off-balance sheet credit arrangements to enable our customers to meet their financing objectives. These instruments involve, to varying degrees, elements of credit and interest rate risk in excess of the amount recognized in the financial statements. Our exposure to credit loss, in the event a customer does not satisfy the terms of their agreement, equals the contractual amount of the obligation less the value of any collateral. We apply the same credit policies in making commitments and standby letters of credit that are used for the underwriting of loans to customers. Commitments generally have fixed expiration dates, annual renewals or other termination clauses and may require payment of a fee. Since many of the commitments are expected to expire without being drawn upon; the total commitment amounts do not necessarily represent future cash requirements. Our allowance for unfunded commitments totaled $3.1 million at June 30, 2014 and $2.9 million at December 31, 2013. The allowance for unfunded commitments is included in other liabilities in the Consolidated Balance Sheets.

Estimates of the fair value of these off-balance sheet items were not made because of the short-term nature of these arrangements and the credit standing of the counterparties.

The following table sets forth the commitments and letters of credit as of the dates presented:

(dollars in thousands)	June 30, 2014		December 31, 2013
Commitments to extend credit	$	1,117,511	$	1,038,529
Standby letters of credit	78,427		78,639
Total	$	1,195,938	$	1,117,168

Litigation

In the normal course of business, we are subject to various legal and administrative proceedings and claims. While any type of litigation contains a level of uncertainty, we believe that the outcome of such proceedings or claims will not have a material adverse effect on our consolidated financial position.

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Commitments and Contingencies - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Commitments and Contingencies Disclosure [Abstract]
Allowance for unfunded commitments	$ 3.1	$ 2.9

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Other Comprehensive Income - Other Comprehensive Income (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2014		Jun. 30, 2013		Jun. 30, 2014		Jun. 30, 2013
Pre-Tax Amount
Change in unrealized gains/losses on securities available-for-sale	$ 5,401		$ (12,061)		$ 9,876		$ (13,829)
Reclassification adjustment for net (gains)/losses on securities available-for-sale included in net income	(40)	[1]	0	[1]	(41)	[1]	(2)	[1]
Adjustment to funded status of employee benefit plans	211		598		423		1,196
Other Comprehensive Income (Loss)	5,572		(11,463)		10,258		(12,635)
Tax (Expense) Benefit
Change in unrealized gains/losses on securities available-for-sale	(1,891)		4,221		(3,457)		4,840
Reclassification adjustment for net (gains)/losses on securities available-for-sale included in net income	15	[1]	0	[1]	15	[1]	1	[1]
Adjustment to funded status of employee benefit plans	(74)		(210)		(148)		(419)
Other Comprehensive Income (Loss)	(1,950)		4,011		(3,590)		4,422
Net of Tax Amount
Change in unrealized gains/losses on securities available-for-sale	3,510		(7,840)		6,419		(8,989)
Reclassification adjustment for net (gains)/losses on securities available-for-sale included in net income	(25)	[1]	0	[1]	(26)	[1]	(1)	[1]
Adjustment to funded status of employee benefit plans	137		388		275		777
Other Comprehensive Income (Loss)	$ 3,622		$ (7,452)		$ 6,668		$ (8,213)

[1] Reclassification adjustments are comprised of realized security gains. The gains have been reclassified out of accumulated other comprehensive income (loss) and have affected certain lines in the Consolidated Statements of Comprehensive Income as follows; the pre-tax amount is included in securities gains-net, the tax expense amount is included in the provision for income taxes and the net of tax amount is included in net income.

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Borrowings - Summary of Information Pertaining to Borrowings (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Long Term And Short Term Debt [Line Items]
Short-term borrowings	$ 210,269	$ 173,847
Long-term borrowings	66,255	67,429
Total Borrowings	276,524	241,276
Short-term borrowings, Weighted Average Rate	0.25%	0.24%
Long-term borrowings, Weighted Average Rate	2.78%	2.80%
Total Borrowings, Weighted Average Rate	0.85%	0.96%
Securities Sold under Repurchase Agreements [Member]
Long Term And Short Term Debt [Line Items]
Short-term borrowings	25,269	33,847
Short-term borrowings, Weighted Average Rate	0.01%	0.01%
Short-Term Borrowings [Member]
Long Term And Short Term Debt [Line Items]
Short-term borrowings	185,000	140,000
Short-term borrowings, Weighted Average Rate	0.28%	0.30%
Other Long-Term Borrowings [Member]
Long Term And Short Term Debt [Line Items]
Long-term borrowings	20,636	21,810
Long-term borrowings, Weighted Average Rate	2.98%	3.01%
Junior Subordinated Debt Securities [Member]
Long Term And Short Term Debt [Line Items]
Long-term borrowings	$ 45,619	$ 45,619
Long-term borrowings, Weighted Average Rate	2.69%	2.70%

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Fair Value Measurements - Additional Information (Detail) (USD $)	Jun. 30, 2014	Dec. 31, 2013
Fair Value Disclosures [Abstract]
Fair value of asset transfer from Level 1 to Level 2 on recurring basis	$ 0	$ 0
Fair value of asset transfer from Level 2 to Level 1 on recurring basis	0	0
Fair value of liabilities transfer from Level 1 to Level 2 on recurring basis	0	0
Fair value of liabilities transfer from Level 2 to Level 1 recurring basis	0	0
Liabilities measured at estimated fair value on nonrecurring basis	$ 0	$ 0

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Allowance for Loan Losses - Age Analysis of Past Due Loans Segregated by Class of Loans (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, Current	$ 3,706,327	$ 3,533,741
Loans, 30 to 59 Days Past Due	4,164	8,535
Loans, 60 to 89 Days Past Due	2,751	3,605
Total nonaccrual loans	14,939	22,454
Loans, Past Due, Total	21,854	34,594
Total Loans	3,728,181	3,568,335
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, Current	1,629,928	1,595,590
Loans, 30 to 59 Days Past Due	753	1,209
Loans, 60 to 89 Days Past Due	44	207
Total nonaccrual loans	5,658	10,750
Loans, Past Due, Total	6,455	12,166
Total Loans	1,636,383	1,607,756
Commercial and Industrial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, Current	918,846	836,276
Loans, 30 to 59 Days Past Due	559	2,599
Loans, 60 to 89 Days Past Due	249	278
Total nonaccrual loans	2,537	3,296
Loans, Past Due, Total	3,345	6,173
Total Loans	922,191	842,449
Commercial Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, Current	185,428	139,133
Loans, 30 to 59 Days Past Due	0	1,049
Loans, 60 to 89 Days Past Due	1,014	751
Total nonaccrual loans	1,869	2,742
Loans, Past Due, Total	2,883	4,542
Total Loans	188,311	143,675
Residential Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, Current	488,551	481,260
Loans, 30 to 59 Days Past Due	1,022	828
Loans, 60 to 89 Days Past Due	898	1,666
Total nonaccrual loans	2,118	3,338
Loans, Past Due, Total	4,038	5,832
Total Loans	492,589	487,092
Home Equity [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, Current	412,851	408,777
Loans, 30 to 59 Days Past Due	1,466	2,468
Loans, 60 to 89 Days Past Due	478	659
Total nonaccrual loans	1,431	2,291
Loans, Past Due, Total	3,375	5,418
Total Loans	416,226	414,195
Installment and Other Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, Current	65,380	67,420
Loans, 30 to 59 Days Past Due	364	382
Loans, 60 to 89 Days Past Due	68	44
Total nonaccrual loans	26	37
Loans, Past Due, Total	458	463
Total Loans	65,838	67,883
Consumer Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, Current	3,541	3,149
Loans, 30 to 59 Days Past Due	0	0
Loans, 60 to 89 Days Past Due	0	0
Total nonaccrual loans	0	0
Loans, Past Due, Total	0	0
Total Loans	3,541	3,149
Loans Held for Sale [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, Current	1,802	2,136
Loans, 30 to 59 Days Past Due	0	0
Loans, 60 to 89 Days Past Due	0	0
Total nonaccrual loans	1,300	0
Loans, Past Due, Total	1,300	0
Total Loans	$ 3,102	$ 2,136

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Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2014

Earnings Per Share [Abstract]

Reconciles Numerators and Denominators of Basic Earnings Per Share with Diluted Earnings Per Share

The following table reconciles the numerators and denominators of basic earnings per share with that of diluted earnings per share for the periods presented:

	Three Months Ended June 30,				Six Months Ended June 30,
(dollars in thousands, except shares and per share data)	2014		2013		2014		2013
Numerator for Earnings per Share—Basic:
Net income	$	14,720	$	14,103	$	28,753	$	26,433
Less: Income allocated to participating shares	29		36		64		81
Net Income Allocated to Shareholders	$	14,691	$	14,067	$	28,689	$	26,352
Numerator for Earnings per Share—Diluted:
Net income	14,720		14,103		$	28,753	$	26,433
Net Income Available to Shareholders	$	14,720	$	14,103	$	28,753	$	26,433
Denominators for Earnings per Share:
Weighted Average Shares Outstanding—Basic	29,684,300		29,654,018		29,672,611		29,637,825
Add: Dilutive potential shares	16,894		23,858		27,559		41,319
Denominator for Treasury Stock Method—Diluted	29,701,194		29,677,876		29,700,170		29,679,144
Weighted Average Shares Outstanding—Basic	29,684,300		29,654,018		29,672,611		29,637,825
Add: Average participating shares outstanding	58,973		74,994		66,563		91,530
Denominator for Two-Class Method—Diluted	29,743,273		29,729,012		29,739,174		29,729,355
Earnings per share—basic	$	0.49	$	0.47	$	0.97	$	0.89
Earnings per share—diluted	$	0.49	$	0.47	$	0.97	$	0.89
Warrants considered anti-dilutive excluded from dilutive potential shares	517,012		517,012		517,012		517,012
Stock options considered anti-dilutive excluded from dilutive potential shares	428,493		629,570		428,676		642,499
Restricted stock considered anti-dilutive excluded from dilutive potential shares	42,079		51,136		39,005		50,211

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Derivative Instruments and Hedging Activities (Tables)

6 Months Ended

Jun. 30, 2014

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Value of Derivative Assets and Derivative Liabilities

The following table indicates the amounts representing the value of derivative assets and derivative liabilities as of the dates presented:

	Derivatives (included in Other Assets)				Derivatives (included in Other Liabilities)
(dollars in thousands)	June 30, 2014		December 31, 2013		June 30, 2014		December 31, 2013
Derivatives not Designated as Hedging Instruments
Interest Rate Swap Contracts—Commercial Loans
Fair value	$	14,082	$	13,698	$	14,050	$	13,647
Notional amount	245,865		261,754		245,865		261,754
Collateral posted	—		—		11,559		12,611
Interest Rate Lock Commitments—Mortgage Loans
Fair value	292		85		—		—
Notional amount	9,594		3,989		—		—
Forward Sale Contracts—Mortgage Loans
Fair value	—		34		59		—
Notional amount	$	—	$	5,250	$	7,210	$	—

Schedule of Gross Amounts of Derivative Assets and Derivative Liabilities

The following table indicates the gross amounts of commercial loan swap derivative assets and derivative liabilities, the amounts offset and the carrying values in the Consolidated Balance Sheets as of the dates presented:

	Derivatives (included in Other Assets)						Derivatives (included in Other Liabilities)
(dollars in thousands)	June 30, 2014			December 31, 2013			June 30, 2014			December 31, 2013
Derivatives not Designated as Hedging Instruments
Gross amounts recognized	$	14,349		$	14,012		$	14,317		$	13,961
Gross amounts offset	(267		)	(314		)	(267		)	(314		)
Net amounts presented in the Consolidated Balance Sheets	14,082			13,698			14,050			13,647
Gross amounts not offset(1)	—			—			(11,559		)	(12,611		)
Net Amount	$	14,082		$	13,698		$	2,491		$	1,036

⁽¹⁾ Amounts represent posted collateral.

Amount of Gain or Loss Recognized in Income on Derivatives

The following table indicates the gain or loss recognized in income on derivatives for the periods presented:

	Three Months Ended June 30,						Six Months Ended June 30,
(dollars in thousands)	2014			2013			2014			2013
Derivatives not Designated as Hedging Instruments
Interest rate swap contracts—commercial loans	$	(11	)	$	(27	)	$	(19	)	$	(156	)
Interest rate lock commitments—mortgage loans	199			(266		)	207			(492		)
Forward sale contracts—mortgage loans	(64		)	381			(93		)	405
Total Derivatives Gain (Loss)	$	124		$	88		$	95		$	(243	)

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Loans and Loans Held for Sale - Summary of Nonperforming Assets of Defaulted TDRs (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014 Contract	Jun. 30, 2013 Contract	Jun. 30, 2014 Contract	Jun. 30, 2013 Contract
Financing Receivable, Modifications [Line Items]
Number of Defaults	0	4	1	7
Recorded Investment	$ 0	$ 79	$ 72	$ 215
Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number of Defaults	0	0	0	0
Recorded Investment	0	0	0	0
Commercial and Industrial [Member]
Financing Receivable, Modifications [Line Items]
Number of Defaults	0	0	0	0
Recorded Investment	0	0	0	0
Commercial Construction [Member]
Financing Receivable, Modifications [Line Items]
Number of Defaults	0	0	0	0
Recorded Investment	0	0	0	0
Residential Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number of Defaults	0	2	1	3
Recorded Investment	0	46	72	64
Home Equity [Member]
Financing Receivable, Modifications [Line Items]
Number of Defaults	0	2	0	4
Recorded Investment	$ 0	$ 33	$ 0	$ 151

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Securities Available-for-Sale - Fair Value and Age of Gross Unrealized Losses by Investment Category (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014 security	Dec. 31, 2013 security
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale, Securities, Less Than 12 Months, Number of Positions	5	41
Available-for-sale Securities, Less Than 12 Months, Fair Value	$ 41,434	$ 274,942
Available-for-sale Securities, Less Than 12 Months, Unrealized Losses	(313)	(6,913)
Available-for-sale, Securities, 12 Months or More, Number of Positions	14	2
Available-for-sale Securities, 12 Months or More, Fair Value	109,491	10,088
Available-for-sale Securities, 12 Months or More, Unrealized Losses	(1,989)	(863)
Available-for-sale Securities, Fair Value, Total	150,925	285,030
Number of debt securities on which unrealized losses were primarily attributable to changes in interest	19
Available-for-sale, Securities, Number of Positions		43
Available-for-sale Securities, Unrealized Losses, Total	(2,302)	(7,776)
Obligations of U.S. Government Corporations and Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale, Securities, Less Than 12 Months, Number of Positions	2	16
Available-for-sale Securities, Less Than 12 Months, Fair Value	19,741	126,017
Available-for-sale Securities, Less Than 12 Months, Unrealized Losses	(78)	(2,581)
Available-for-sale, Securities, 12 Months or More, Number of Positions	8	0
Available-for-sale Securities, 12 Months or More, Fair Value	63,265	0
Available-for-sale Securities, 12 Months or More, Unrealized Losses	(1,021)	0
Available-for-sale Securities, Fair Value, Total	83,006	126,017
Available-for-sale, Securities, Number of Positions	10	16
Available-for-sale Securities, Unrealized Losses, Total	(1,099)	(2,581)
Collateralized Mortgage Obligations of U.S. Government Corporations and Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale, Securities, Less Than 12 Months, Number of Positions	1	3
Available-for-sale Securities, Less Than 12 Months, Fair Value	11,420	39,522
Available-for-sale Securities, Less Than 12 Months, Unrealized Losses	(218)	(603)
Available-for-sale, Securities, 12 Months or More, Number of Positions	0	0
Available-for-sale Securities, 12 Months or More, Fair Value	0	0
Available-for-sale Securities, 12 Months or More, Unrealized Losses	0	0
Available-for-sale Securities, Fair Value, Total	11,420	39,522
Available-for-sale, Securities, Number of Positions	1	3
Available-for-sale Securities, Unrealized Losses, Total	(218)	(603)
Residential Mortgage-Backed Securities of U.S. Government Corporations and Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale, Securities, Less Than 12 Months, Number of Positions	0	2
Available-for-sale Securities, Less Than 12 Months, Fair Value	0	22,822
Available-for-sale Securities, Less Than 12 Months, Unrealized Losses	0	(685)
Available-for-sale, Securities, 12 Months or More, Number of Positions	1	0
Available-for-sale Securities, 12 Months or More, Fair Value	9,414	0
Available-for-sale Securities, 12 Months or More, Unrealized Losses	(231)	0
Available-for-sale Securities, Fair Value, Total	9,414	22,822
Available-for-sale, Securities, Number of Positions	1	2
Available-for-sale Securities, Unrealized Losses, Total	(231)	(685)
Commercial Mortgage-Backed Securities of U.S. Government Corporations and Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale, Securities, Less Than 12 Months, Number of Positions	1	4
Available-for-sale Securities, Less Than 12 Months, Fair Value	10,009	39,052
Available-for-sale Securities, Less Than 12 Months, Unrealized Losses	(16)	(1,305)
Available-for-sale, Securities, 12 Months or More, Number of Positions	2	0
Available-for-sale Securities, 12 Months or More, Fair Value	20,837	0
Available-for-sale Securities, 12 Months or More, Unrealized Losses	(386)	0
Available-for-sale Securities, Fair Value, Total	30,846	39,052
Available-for-sale, Securities, Number of Positions	3	4
Available-for-sale Securities, Unrealized Losses, Total	(402)	(1,305)
Obligations of States and Political Subdivisions [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale, Securities, Less Than 12 Months, Number of Positions	1	16
Available-for-sale Securities, Less Than 12 Months, Fair Value	264	47,529
Available-for-sale Securities, Less Than 12 Months, Unrealized Losses	(1)	(1,739)
Available-for-sale, Securities, 12 Months or More, Number of Positions	3	2
Available-for-sale Securities, 12 Months or More, Fair Value	15,975	10,088
Available-for-sale Securities, 12 Months or More, Unrealized Losses	(351)	(863)
Available-for-sale Securities, Fair Value, Total	16,239	57,617
Available-for-sale, Securities, Number of Positions	4	18
Available-for-sale Securities, Unrealized Losses, Total	(352)	(2,602)
Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale, Securities, Less Than 12 Months, Number of Positions	5	41
Available-for-sale Securities, Less Than 12 Months, Fair Value	41,434	274,942
Available-for-sale Securities, Less Than 12 Months, Unrealized Losses	(313)	(6,913)
Available-for-sale, Securities, 12 Months or More, Number of Positions	14	2
Available-for-sale Securities, 12 Months or More, Fair Value	109,491	10,088
Available-for-sale Securities, 12 Months or More, Unrealized Losses	(1,989)	(863)
Available-for-sale Securities, Fair Value, Total	150,925	285,030
Available-for-sale, Securities, Number of Positions	19	43
Available-for-sale Securities, Unrealized Losses, Total	(2,302)	(7,776)
Marketable Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale, Securities, Less Than 12 Months, Number of Positions	0	0
Available-for-sale Securities, Less Than 12 Months, Fair Value	0	0
Available-for-sale Securities, Less Than 12 Months, Unrealized Losses	0	0
Available-for-sale, Securities, 12 Months or More, Number of Positions	0	0
Available-for-sale Securities, 12 Months or More, Fair Value	0	0
Available-for-sale Securities, 12 Months or More, Unrealized Losses	0	0
Available-for-sale Securities, Fair Value, Total	0	0
Available-for-sale, Securities, Number of Positions	0	0
Available-for-sale Securities, Unrealized Losses, Total	$ 0	$ 0

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Consolidated Statements of Changes in Shareholders' Equity (USD $) In Thousands, unless otherwise specified	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Stock [Member]
Balance at Dec. 31, 2012	$ 537,422	$ 77,993	$ 77,458	$ 436,039	$ (13,582)	$ (40,486)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	26,433			26,433
Other comprehensive income (loss), net of tax	(8,213)				(8,213)
Cash dividends declared	(8,918)			(8,918)
Treasury stock issued for restricted awards	(86)			(296)		210
Recognition of restricted stock compensation expense	261		261
Tax expense from stock-based compensation	(47)		(47)
Balance at Jun. 30, 2013	546,852	77,993	77,672	453,258	(21,795)	(40,276)
Balance at Dec. 31, 2013	571,306	77,993	78,140	468,158	(12,694)	(40,291)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	28,753			28,753
Other comprehensive income (loss), net of tax	6,668				6,668
Cash dividends declared	(9,810)			(9,810)
Treasury stock issued for restricted awards	(160)			(1,824)		1,664
Recognition of restricted stock compensation expense	430		430
Tax expense from stock-based compensation	0		0
Balance at Jun. 30, 2014	$ 597,187	$ 77,993	$ 78,570	$ 485,277	$ (6,026)	$ (38,627)

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Fair Value Measurements

6 Months Ended

Jun. 30, 2014

Fair Value Disclosures [Abstract]

Fair Value Measurements

FAIR VALUE MEASUREMENT

We use fair value measurements when recording and disclosing certain financial assets and liabilities. Securities available-for-sale, trading assets and derivatives are recorded at fair value on a recurring basis. Additionally, from time to time, we may be required to record other assets at fair value on a nonrecurring basis, such as loans held for sale, impaired loans, other real estate owned, or OREO, mortgage servicing rights, or MSRs, and certain other assets.

Fair value is the price that would be received to sell an asset or paid to transfer a liability in the principal or most advantageous market in an orderly transaction between market participants at the measurement date. An orderly transaction is a transaction that assumes exposure to the market for a period prior to the measurement date to allow for marketing activities that are usual and customary for transactions involving such assets or liabilities; it is not a forced transaction. In determining fair value, we use various valuation approaches, including market, income and cost approaches. The fair value standard establishes a hierarchy for inputs used in measuring fair value that maximizes the use of observable inputs and minimizes the use of unobservable inputs by requiring that observable inputs be used when available. Observable inputs are inputs that market participants would use in pricing an asset or liability, which is developed, based on market data we have obtained from independent sources. Unobservable inputs reflect our estimate of assumptions that market participants would use in pricing an asset or liability, which are developed based on the best information available in the circumstances.

The fair value hierarchy gives the highest priority to unadjusted quoted market prices in active markets for identical assets or liabilities (Level 1 measurement) and the lowest priority to unobservable inputs (Level 3 measurement). The fair value hierarchy is broken down into three levels based on the reliability of inputs as follows:

Level 1: valuation is based upon unadjusted quoted market prices for identical instruments traded in active markets.

Level 2: valuation is based upon quoted market prices for similar instruments traded in active markets, quoted market prices for identical or similar instruments traded in markets that are not active and model-based valuation techniques for which all significant assumptions are observable in the market or can be corroborated by market data.

Level 3: valuation is derived from other valuation methodologies, including discounted cash flow models and similar techniques that use significant assumptions not observable in the market. These unobservable assumptions reflect estimates of assumptions that market participants would use in determining fair value.

A financial instrument’s level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement. Our policy is to recognize transfers between any of the fair value hierarchy levels at the end of the reporting period in which the transfer occurred.

The following are descriptions of the valuation methodologies that we use for financial instruments recorded at fair value on either a recurring or nonrecurring basis.

Recurring Basis

Securities Available-for-Sale

Securities available-for-sale include both debt and equity securities. We obtain fair values for debt securities from a third-party pricing service which utilizes several sources for valuing fixed-income securities. We validate prices received from our pricing service through comparison to a secondary pricing service and broker quotes. We review the methodologies of the pricing service which provides us with a sufficient understanding of the valuation models, assumptions, inputs and pricing to reasonably measure the fair value of our debt securities. The market valuation sources for debt securities include observable inputs rather than significant unobservable inputs and are classified as Level 2. The service provider utilizes pricing models that vary by asset class and include available trade, bid and other market information. Generally, the methodologies include broker quotes, proprietary models and vast descriptive terms and conditions databases, as well as extensive quality control programs.

Marketable equity securities that have an active, quotable market are classified as Level 1. Marketable equity securities that are quotable, but are thinly traded or inactive, are classified as Level 2. Marketable equity securities that are not readily traded and do not have a quotable market are classified as Level 3.

Trading Assets

We use quoted market prices to determine the fair value of our trading assets. Our trading assets are held in a Rabbi Trust under a deferred compensation plan and are invested in readily quoted mutual funds. Accordingly, these assets are classified as Level 1.

Derivative Financial Instruments

We use derivative instruments including interest rate swaps for commercial loans with our customers and we sell mortgage loans in the secondary market and enter into interest rate lock commitments. We calculate the fair value for derivatives using widely accepted valuation techniques, including discounted cash flow analysis on the expected cash flows of each derivative. Each valuation considers the contractual terms of the derivative, including the period to maturity, and uses observable market based inputs, such as interest rate curves and implied volatilities. Accordingly, derivatives are classified as Level 2.

We incorporate credit valuation adjustments into the valuation models to appropriately reflect both our own nonperformance risk and the respective counterparty’s nonperformance risk in calculating fair value measurements. In adjusting the fair value of our derivative contracts for the effect of nonperformance risk, we have considered the impact of netting and any applicable credit enhancements and collateral postings.

Nonrecurring Basis

Loans Held for Sale

Loans held for sale consist of 1-4 family residential loans originated for sale in the secondary market and, from time to time, certain loans transferred from the loan portfolio to loans held for sale, all of which are carried at the lower of cost or fair value. The fair value of 1-4 family residential loans is based on the principal or most advantageous market currently offered for similar loans using observable market data. The fair value of the loans transferred from the loan portfolio is based on the amounts offered for these loans in currently pending sales transactions. Loans held for sale carried at fair value are classified as Level 3.

Impaired Loans

Impaired loans are carried at the lower of carrying value or fair value. Fair value is determined as the recorded investment balance less any specific reserve. We establish a specific reserve based on the following three impairment methods: 1) the present value of expected future cash flows discounted at the loan’s original effective interest rate, 2) the loan’s observable market price or 3) the fair value of the collateral less estimated selling costs when the loan is collateral dependent and we expect to liquidate the collateral. However, if repayment is expected to come from the operation of the collateral, rather than liquidation, then we do not consider estimated selling costs in determining the fair value of the collateral. Collateral values are generally based upon appraisals by approved, independent state certified appraisers.

Appraisals may be discounted based on our historical knowledge, changes in market conditions from the time of appraisal or our knowledge of the borrower and the borrower’s business. Impaired loans carried at fair value are classified as Level 3.

OREO and Other Repossessed Assets

OREO and other repossessed assets obtained in partial or total satisfaction of a loan are recorded at the lower of recorded investment in the loan or fair value less cost to sell. Subsequent to foreclosure, these assets are carried at the lower of the amount recorded at acquisition date or fair value less cost to sell. Accordingly, it may be necessary to record nonrecurring fair value adjustments. Fair value, when recorded, is generally based upon appraisals by approved, independent state certified appraisers. Like impaired loans, appraisals on OREO may be discounted based on our historical knowledge, changes in market conditions from the time of appraisal or other information available to us. OREO and other repossessed assets are classified as Level 3.

Mortgage Servicing Rights

The fair value of MSRs is determined by calculating the present value of estimated future net servicing cash flows, considering expected mortgage loan prepayment rates, discount rates, servicing costs and other economic factors, which are determined based on current market conditions. The expected rate of mortgage loan prepayments is the most significant factor affecting the value of MSRs. MSRs are considered impaired if the carrying value exceeds fair value. The valuation model includes significant unobservable inputs; therefore, MSRs are classified as Level 3.

Other Assets

We measure certain other assets at fair value on a nonrecurring basis. Fair value is based on the application of lower of cost or fair value accounting, or write-downs of individual assets. Valuation methodologies used to measure fair value are consistent with overall principles of fair value accounting and consistent with those described above.

Financial Instruments

In addition to financial instruments recorded at fair value in our financial statements, fair value accounting guidance requires disclosure of the fair value of all of an entity’s assets and liabilities that are considered financial instruments. The majority of our assets and liabilities are considered financial instruments. Many of these instruments lack an available trading market as characterized by a willing buyer and willing seller engaged in an exchange transaction. Also, it is our general practice and intent to hold our financial instruments to maturity and to not engage in trading or sales activities with respect to such financial instruments. For fair value disclosure purposes, we substantially utilize the fair value measurement criteria as required and explained above. In cases where quoted fair values are not available, we use present value methods to determine the fair value of our financial instruments.

Cash and Cash Equivalents and Other Short-Term Assets

The carrying amounts reported in the Consolidated Balance Sheets for cash and due from banks, including interest-bearing deposits, approximate fair value.

Loans

The fair value of variable rate performing loans that may reprice frequently at short-term market rates is based on carrying values adjusted for credit risk. The fair value of variable rate performing loans that reprice at intervals of one year or longer, such as adjustable rate mortgage products, is estimated using discounted cash flow analyses that utilize interest rates currently being offered for similar loans and adjusted for credit risk. The fair value of fixed rate performing loans is estimated using discounted cash flow analyses that utilize interest rates currently being offered for similar loans and adjusted for credit risk. The fair value of nonperforming loans is based on their carrying values less any specific reserve. The carrying amount of accrued interest approximates fair value.

Bank Owned Life Insurance

Fair value approximates net cash surrender value.

Deposits

The fair values disclosed for deposits without defined maturities (e.g., noninterest and interest-bearing demand, money market and savings accounts) are by definition equal to the amounts payable on demand. The carrying amounts for variable rate, fixed-term time deposits approximate their fair values. Estimated fair values for fixed rate and other time deposits are based on discounted cash flow analysis using interest rates currently offered for time deposits with similar terms. The carrying amount of accrued interest approximates fair value.

Short-Term Borrowings

The carrying amounts of securities sold under repurchase agreements, federal funds purchased and other short-term borrowings approximate their fair values.

Long-Term Borrowings

The fair values disclosed for fixed rate long-term borrowings are determined by discounting their contractual cash flows using current interest rates for long-term borrowings of similar remaining maturities. The carrying amounts of variable rate long-term borrowings approximate their fair values.

Junior Subordinated Debt Securities

The variable rate junior subordinated debt securities reprice quarterly; therefore, the fair values are based on the carrying values.

Loan Commitments and Standby Letters of Credit

Off-balance sheet financial instruments consist of commitments to extend credit and letters of credit. Except for interest rate lock commitments, estimates of the fair value of these off-balance sheet items are not made because of the short-term nature of these arrangements and the credit standing of the counterparties.

Other

Estimates of fair value are not made for items that are not defined as financial instruments, including such items as our core deposit intangibles and the value of our trust operations.

The following tables present our assets and liabilities that are measured at fair value on a recurring basis by fair value hierarchy level at June 30, 2014 and December 31, 2013. There were no transfers between Level 1 and Level 2 for items measured at fair value on a recurring basis during the periods presented.

	June 30, 2014
(dollars in thousands)	Level 1		Level 2		Level 3		Total
ASSETS
Securities available-for-sale:
Obligations of U.S. government corporations and agencies	$	—	$	270,248	$	—	$	270,248
Collateralized mortgage obligations of U.S. government corporations and agencies	—		94,604		—		94,604
Residential mortgage-backed securities of U.S. government corporations and agencies	—		46,389		—		46,389
Commercial mortgage-backed securities of U.S. government corporations and agencies	—		39,920		—		39,920
Obligations of states and political subdivisions	—		128,313		—		128,313
Marketable equity securities	179		8,835		—		9,014
Total securities available-for-sale	179		588,309		—		588,488
Trading securities held in a Rabbi Trust	3,117		—		—		3,117
Total securities	3,296		588,309		—		591,605
Derivative financial assets:
Interest rate swaps	—		14,082		—		14,082
Interest rate lock commitments	—		292		—		292
Forward sale contracts	—		—		—		—
Total Assets	$	3,296	$	602,683	$	—	$	605,979
LIABILITIES
Derivative financial liabilities:
Interest rate swaps	$	—	$	14,050	$	—	$	14,050
Forward sale contracts	—		59		—		$	59
Total Liabilities	$	—	$	14,109	$	—	$	14,109

	December 31, 2013
(dollars in thousands)	Level 1		Level 2		Level 3		Total
ASSETS
Securities available-for-sale:
Obligations of U.S. government corporations and agencies	$	—	$	234,751	$	—	$	234,751
Collateralized mortgage obligations of U.S. government corporations and agencies	—		63,774		—		63,774
Residential mortgage-backed securities of U.S. government corporations and agencies	—		48,669		—		48,669
Commercial mortgage-backed securities of U.S. government corporations and agencies	—		39,052		—		39,052
Obligations of states and political subdivisions	—		114,264		—		114,264
Marketable equity securities	202		8,713		—		8,915
Total securities available-for-sale	202		509,223		—		509,425
Trading securities held in a Rabbi Trust	2,864		—		—		2,864
Total securities	3,066		509,223		—		512,289
Derivative financial assets:
Interest rate swaps	—		13,698		—		13,698
Interest rate lock commitments	—		85		—		85
Forward sale contracts	—		34		—		34
Total Assets	$	3,066	$	523,040	$	—	$	526,106
LIABILITIES
Derivative financial liabilities:
Interest rate swaps	$	—	$	13,647	$	—	$	13,647
Total Liabilities	$	—	$	13,647	$	—	$	13,647

We classify financial instruments as Level 3 when valuation models are used because significant inputs are not observable in the market. The following table presents the changes in assets measured at fair value on a recurring basis for which we have utilized Level 3 inputs to determine the fair value:

	Three Months Ended June 30,					Six Months Ended June 30,
(dollars in thousands)	2014		2013			2014		2013
Balance at beginning of period	$	—	$	312		$	—	$	300
Total gains included in other comprehensive income(1)	—		32			—		44
Net purchases, sales, issuances and settlements	—		—			—		—
Transfers out of Level 3	—		(344		)	—		(344		)
Balance at end of period	$	—	$	—		$	—	$	—

⁽¹⁾ Changes in estimated fair value of available-for-sale investments are recorded in accumulated other comprehensive income (loss), while realized gains and losses from sales are recorded in security gains (losses), net in the Consolidated Statements of Comprehensive Income.

We may be required to measure certain assets and liabilities on a nonrecurring basis. The following table presents our assets that were measured at fair value on a nonrecurring basis by the fair value hierarchy level at June 30, 2014 and December 31, 2013. There were no liabilities measured at fair value on a nonrecurring basis during these periods.

	June 30, 2014								December 31, 2013
(dollars in thousands)	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
ASSETS
Loans held for sale	$	—	$	—	$	1,300	$	1,300	$	—	$	—	$	1,516	$	1,516
Impaired loans	—		—		14,483		14,483		—		—		19,197		19,197
Other real estate owned	—		—		317		317		—		—		317		317
Mortgage servicing rights	—		—		1,211		1,211		—		—		1,025		1,025
Total Assets	$	—	$	—	$	17,311	$	17,311	$	—	$	—	$	22,055	$	22,055

The carrying values and fair values of our financial instruments at June 30, 2014 and December 31, 2013 are presented in the following tables:

	Carrying Value(1)		Fair Value Measurements at June 30, 2014
(dollars in thousands)			Total		Level 1		Level 2		Level 3
ASSETS
Cash and due from banks, including interest-bearing deposits	$	130,235	$	130,235	$	130,235	$	—	$	—
Securities available-for-sale	588,488		588,488		179		588,309		—
Loans held for sale	3,102		3,121		—		—		3,121
Portfolio loans, net of unearned income	3,725,079		3,691,807		—		—		3,691,807
Bank owned life insurance	61,348		61,348		—		61,348		—
FHLB and other restricted stock	15,818		15,818		—		—		15,818
Trading securities held in a Rabbi Trust	3,117		3,117		3,117		—		—
Mortgage servicing rights	2,743		2,890		—		—		2,890
Interest rate swaps	14,082		14,082		—		14,082		—
Interest rate lock commitments	292		292		—		292		—
LIABILITIES
Deposits	$	3,865,246	$	3,867,540	$	—	$	—	$	3,867,540
Securities sold under repurchase agreements	25,269		25,269		—		—		25,269
Short-term borrowings	185,000		185,000		—		—		185,000
Long-term borrowings	20,636		21,779		—		—		21,779
Junior subordinated debt securities	45,619		45,619		—		—		45,619
Interest rate swaps	14,050		14,050		—		14,050		—
Forward sale contracts	59		59		—		59		—
(1) As reported in the Consolidated Balance Sheets
	Carrying Value(1)		Fair Value Measurements at December 31, 2013
(dollars in thousands)			Total		Level 1		Level 2		Level 3
ASSETS
Cash and due from banks, including interest-bearing deposits	$	108,356	$	108,356	$	108,356	$	—	$	—
Securities available-for-sale	509,425		509,425		202		509,223		—
Loans held for sale	2,136		2,139		—		—		2,139
Portfolio loans, net of unearned income	3,566,199		3,538,072		—		—		3,538,072
Bank owned life insurance	60,480		60,480		—		60,480		—
FHLB and other restricted stock	13,629		13,629		—		—		13,629
Trading securities held in a Rabbi Trust	2,864		2,864		2,864		—		—
Mortgage servicing rights	2,919		3,143		—		—		3,143
Interest rate swaps	13,698		13,698		—		13,698		—
Interest rate lock commitments	85		85		—		85		—
Forward sale contracts	34		34		—		34		—
LIABILITIES
Deposits	$	3,672,308	$	3,673,624	$	—	$	—	$	3,673,624
Securities sold under repurchase agreements	33,847		33,847		—		—		33,847
Short-term borrowings	140,000		140,000		—		—		140,000
Long-term borrowings	21,810		22,924		—		—		22,924
Junior subordinated debt securities	45,619		45,619		—		—		45,619
Interest rate swaps	13,647		13,647		—		13,647		—

⁽¹⁾ As reported in the Consolidated Balance Sheets

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Derivative Instruments and Hedging Activities - Additional Information (Detail)	6 Months Ended
	Jun. 30, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Period for commitments	60 days

XML

Segments - Additional Information (Detail)	6 Months Ended
	Jun. 30, 2014 Segment
Segment Reporting [Abstract]
Number of reportable segment	3

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Borrowings (Tables)

6 Months Ended

Jun. 30, 2014

Debt Disclosure [Abstract]

Summary of Information Pertaining to Borrowings

Information pertaining to borrowings is summarized in the table below as of the dates presented:

	June 30, 2014				December 31, 2013
(dollars in thousands)	Balance		Weighted Average Rate		Balance		Weighted Average Rate
Short-term borrowings
Securities sold under repurchase agreements	$	25,269	0.01	%	$	33,847	0.01	%
Short-term borrowings	185,000		0.28	%	140,000		0.30	%
Total short-term borrowings	210,269		0.25	%	173,847		0.24	%
Long-term borrowings
Other long-term borrowings	20,636		2.98	%	21,810		3.01	%
Junior subordinated debt securities	45,619		2.69	%	45,619		2.70	%
Total long-term borrowings	66,255		2.78	%	67,429		2.80	%
Total Borrowings	$	276,524	0.85	%	$	241,276	0.96	%

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Fair Value Measurements - Carrying Values and Fair Values of Financial Instruments (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014		Dec. 31, 2013
ASSETS
Securities available-for-sale	$ 588,488		$ 509,425
FHLB and other restricted stock	15,818		13,629
LIABILITIES
Junior subordinated debt securities	45,619		45,619
Carrying Value [Member]
ASSETS
Cash and due from banks, including interest-bearing deposits	130,235	[1]	108,356	[1]
Securities available-for-sale	588,488	[1]	509,425	[1]
Loans held for sale	3,102	[1]	2,136	[1]
Portfolio loans, net of unearned income	3,725,079	[1]	3,566,199	[1]
Bank owned life insurance	61,348	[1]	60,480	[1]
FHLB and other restricted stock	15,818	[1]	13,629	[1]
Trading securities held in a Rabbi Trust	3,117	[1]	2,864	[1]
Mortgage servicing rights	2,743	[1]	2,919	[1]
LIABILITIES
Deposits	3,865,246	[1]	3,672,308	[1]
Securities sold under repurchase agreements	25,269	[1]	33,847	[1]
Short-term borrowings	185,000	[1]	140,000	[1]
Long-term borrowings	20,636	[1]	21,810	[1]
Junior subordinated debt securities	45,619	[1]	45,619	[1]
Carrying Value [Member] | Interest Rate Swaps [Member]
ASSETS
Derivative financial assets	14,082	[1]	13,698	[1]
LIABILITIES
Derivative financial liabilities	14,050	[1]	13,647	[1]
Carrying Value [Member] | Interest Rate Lock Commitments [Member]
ASSETS
Derivative financial assets	292	[1]	85	[1]
Carrying Value [Member] | Forward Sale Contracts [Member]
ASSETS
Derivative financial assets			34	[1]
LIABILITIES
Derivative financial liabilities	59	[1]
Fair Value Measurements [Member]
ASSETS
Cash and due from banks, including interest-bearing deposits	130,235		108,356
Securities available-for-sale	588,488		509,425
Loans held for sale	3,121		2,139
Portfolio loans, net of unearned income	3,691,807		3,538,072
Bank owned life insurance	61,348		60,480
FHLB and other restricted stock	15,818		13,629
Trading securities held in a Rabbi Trust	3,117		2,864
Mortgage servicing rights	2,890		3,143
LIABILITIES
Deposits	3,867,540		3,673,624
Securities sold under repurchase agreements	25,269		33,847
Short-term borrowings	185,000		140,000
Long-term borrowings	21,779		22,924
Junior subordinated debt securities	45,619		45,619
Fair Value Measurements [Member] | Level 1 [Member]
ASSETS
Cash and due from banks, including interest-bearing deposits	130,235		108,356
Securities available-for-sale	179		202
Trading securities held in a Rabbi Trust	3,117		2,864
Fair Value Measurements [Member] | Level 2 [Member]
ASSETS
Securities available-for-sale	588,309		509,223
Bank owned life insurance	61,348		60,480
Fair Value Measurements [Member] | Level 3 [Member]
ASSETS
Loans held for sale	3,121		2,139
Portfolio loans, net of unearned income	3,691,807		3,538,072
FHLB and other restricted stock	15,818		13,629
Mortgage servicing rights	2,890		3,143
LIABILITIES
Deposits	3,867,540		3,673,624
Securities sold under repurchase agreements	25,269		33,847
Short-term borrowings	185,000		140,000
Long-term borrowings	21,779		22,924
Junior subordinated debt securities	45,619		45,619
Fair Value Measurements [Member] | Interest Rate Swaps [Member]
ASSETS
Derivative financial assets	14,082		13,698
LIABILITIES
Derivative financial liabilities	14,050		13,647
Fair Value Measurements [Member] | Interest Rate Swaps [Member] | Level 2 [Member]
ASSETS
Derivative financial assets	14,082		13,698
LIABILITIES
Derivative financial liabilities	14,050		13,647
Fair Value Measurements [Member] | Interest Rate Lock Commitments [Member]
ASSETS
Derivative financial assets	292		85
Fair Value Measurements [Member] | Interest Rate Lock Commitments [Member] | Level 2 [Member]
ASSETS
Derivative financial assets	292		85
Fair Value Measurements [Member] | Forward Sale Contracts [Member]
ASSETS
Derivative financial assets			34
LIABILITIES
Derivative financial liabilities	59
Fair Value Measurements [Member] | Forward Sale Contracts [Member] | Level 2 [Member]
ASSETS
Derivative financial assets			34
LIABILITIES
Derivative financial liabilities	$ 59

[1] As reported in the Consolidated Balance Sheets

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Basis of Presentation (Policies)

6 Months Ended

Jun. 30, 2014

Accounting Policies [Abstract]

Principles of Consolidation

Principles of Consolidation

The interim Consolidated Financial Statements include the accounts of S&T Bancorp, Inc., or S&T, and its wholly owned subsidiaries. All significant intercompany transactions have been eliminated in consolidation. Investments of 20 percent to 50 percent of the outstanding common stock of investees are accounted for using the equity method of accounting.

Basis of Presentation

Basis of Presentation

The accompanying unaudited interim Consolidated Financial Statements of S&T have been prepared in accordance with generally accepted accounting principles, or GAAP, in the United States for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements and should be read in conjunction with our annual report on Form 10-K for the year ended December 31, 2013, filed with the Securities and Exchange Commission, or SEC, on February 21, 2014. In the opinion of management, the accompanying interim financial information reflects all adjustments, including normal recurring adjustments, necessary to present fairly our financial position and the results of operations for each of the interim periods presented. Results of operations for interim periods are not necessarily indicative of the results of operations that may be expected for a full year or any future period.

Reclassification

Reclassification

Certain amounts in the prior periods’ financial statements and footnotes have been reclassified to conform to the current period’s presentation. The reclassifications had no significant effect on our results of operations or financial condition.

Use of Estimates

Use of Estimates

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements. Actual results could differ from those estimates.

Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Tax Credit Carry Forward Exists

Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Tax Credit Carry forward Exists

In July 2013, the Financial Accounting Standards Board (FASB) issued ASU No. 2013-11, Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Tax Credit Carry forward Exists. The ASU requires that entities should present an unrecognized tax benefit as a reduction of the deferred tax asset for a net operating loss, or NOL, or similar tax loss or tax credit carry forward rather than as a liability when the uncertain tax position would reduce the NOL or other carry forward under the tax law. The new standard is effective for fiscal years, and interim periods within those years, beginning after December 15, 2013, and should be applied prospectively to all unrecognized tax benefits that exist at the effective date. Retrospective application is permitted. The adoption of this ASU had no impact on our results of operations or financial position.

Obligations Resulting from Joint and Several Liability Arrangements for Which the Total Amount of the Obligation is Fixed at the Reporting Date

Obligations Resulting from Joint and Several Liability Arrangements for Which the Total Amount of the Obligation is Fixed at the Reporting Date

In February 2013, the FASB issued ASU No. 2013-04, Obligations Resulting from Joint and Several Liability Arrangements for Which the Total Amount of the Obligation is Fixed at the Reporting Date. The ASU requires the measurement of obligations resulting from joint and several liability arrangements for which the total amount of the obligation is fixed at the reporting date as the sum of the amount the reporting entity agreed to pay on the basis of its arrangement with its co-obligors as well as any additional amount that the entity expects to pay on behalf of its co-obligors. The new standard is effective retrospectively for fiscal years and interim periods within those years, beginning after December 15, 2013, and early adoption is permitted. The adoption of this ASU had no impact on our results of operations or financial position.

New Accounting Pronouncements

Recently Issued Accounting Standards Updates not yet Adopted

Share-Based Payment Awards with Performance Targets

In June 2014, the FASB issued ASU No. 2014-12, Share-Based Payment Awards with Performance Targets. The main provisions of ASU 2014-12 require that a performance target included in a share-based payment award that affects vesting and that could be achieved after the requisite service period be treated as a performance condition. Therefore, under the existing stock compensation guidance in Topic 718, the performance target should not be reflected in estimating the grant-date fair value of the award. The standard is effective for annual periods and interim periods beginning after December 15, 2015. We do not expect that this ASU will have a material impact on our results of operations or financial position.

Repurchase-To-Maturity Transactions, Repurchase Financings and New Disclosures

In June 2014, the FASB issued ASU No. 2014-11, Repurchase-to-Maturity Transactions, Repurchase Financings, and New Disclosures to change the accounting for repurchase-to-maturity transactions and certain linked repurchase financings. This will result in accounting for both types of arrangements as secured borrowings on the balance sheet and require new disclosures to (i) increase transparency about the types of collateral pledged in secured borrowing transactions and (ii) enable users to better understand transactions in which the transferor retains substantially all of the exposure to the economic return on the transferred financial asset throughout the term of the transaction. The disclosure for repurchase agreements, securities lending transactions, and repurchase-to-maturity transactions accounted for as secured borrowings is required to be presented for annual periods beginning after December 15, 2014, and for interim periods beginning after March 15, 2015. All other accounting and disclosure amendments in the ASU are effective for the first interim or annual period beginning after December 15, 2014. Earlier application for a public business entity is prohibited. We do not expect that this ASU will have a material impact on our results of operations or financial position.

Revenues from Contracts with Customers

In May 2014, the FASB issued ASU No. 2014-09, Revenues from Contracts with Customers. The core principle of the guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods and services. The standard is required to be adopted by public business entities in annual periods beginning on or after December 15, 2016. The provisions do not apply to lease contracts, insurance contracts, financial instruments and other contractual rights or obligations (e.g. receivables, debt and equity securities, liabilities, debt, derivatives transfers, and servicing, etc.), guarantees, or non-monetary exchanges between entities. We are currently evaluating the impact of the adoption of this pronouncement on our consolidated financial statements.

Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity

In April 2014, the FASB issued ASU No. 2014-08, Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity, which changes the criteria for determining which disposals can be presented as discontinued operations and modifies related disclosure requirements. The guidance applies to all entities that dispose of components. It will significantly change current practices for assessing discontinued operations and affect an entity’s income and earnings per share from continuing operations. An entity is required to reclassify assets and liabilities of a discontinued operation that are classified as held for sale or disposed of in the current period for all comparative periods presented. The ASU requires that an entity present in the statement of cash flows or disclose in a note either total operating and investing cash flows for discontinued operations, or depreciation, amortization, capital expenditures and significant operating and investing noncash items related to discontinued operations. Additional disclosures are required when an entity retains significant continuing involvement with a discontinued operation after its disposal, including the amount of cash flows to and from a discontinued operation. The new standard applies prospectively after the effective date of December 15, 2014, and early adoption is permitted. We do not expect that this ASU will have a material impact on our results of operations or financial position.

Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure

In January 2014, the FASB issued ASU No. 2014-04, Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure. The ASU clarifies that an in substance repossession or foreclosure has occurred and a creditor is considered to have received physical possession of residential real estate property collateralizing a consumer mortgage loan, upon either the creditor obtaining legal title to the residential real estate property upon completion of a foreclosure or the borrower conveying all interest in the residential real estate property to the creditor to satisfy that loan through completion of a deed in lieu of foreclosure. Interim and annual disclosure is required of both the amount of foreclosed residential real estate property held by the creditor and the recorded investment in consumer mortgage loans collateralized by residential real estate property that are in the process of foreclosure. The new standard is effective using either the modified retrospective transition method or a prospective transition method for fiscal years and interim periods within those years, beginning after December 15, 2014, and early adoption is permitted. We do not expect that this ASU will have a material impact on our results of operations or financial position.

Accounting for Investments in Qualified Affordable Housing Projects

In January 2014, the FASB issued ASU No. 2014-01, Accounting for Investments in Qualified Affordable Housing Projects. The ASU permits reporting entities to make an accounting policy election to account for investments in qualified affordable housing projects using the proportional amortization method if certain conditions are met. The proportional amortization method permits the amortization of the initial cost of the investment in proportion to the tax credits and other tax benefits received, and recognizes the net investment performance in the income statement as a component of income tax expense (benefit). The new standard is effective retrospectively for fiscal years and interim periods within those years, beginning after December 15, 2014, and early adoption is permitted. We do not expect that this ASU will have a material impact on our results of operations or financial position.