10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

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

For the quarterly period ended September 30, 2015

Or

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

For the transition period from             to            

Commission File Number 001-11138

First Commonwealth Financial Corporation

(Exact name of registrant as specified in its charter)

Pennsylvania	25-1428528
(State or other jurisdiction of	(I.R.S. Employer
incorporation or organization)	Identification No.)
601 Philadelphia Street, Indiana, PA	15701
(Address of principal executive offices)	(Zip Code)

724-349-7220

(Registrant’s telephone number, including area code)

N/A

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

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

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

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

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

(Do not check if a 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

The number of shares outstanding of issuer’s common stock, $1.00 par value, as of November 6, 2015, was 88,961,268.

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

FORM 10-Q

INDEX

		PAGE
PART I.	Financial Information
ITEM 1.	Financial Statements and Supplementary Data
	Included in Part I of this report:
	First Commonwealth Financial Corporation and Subsidiaries
	Condensed Consolidated Statements of Financial Condition (Unaudited)	3
	Condensed Consolidated Statements of Income (Unaudited)	4
	Condensed Consolidated Statements of Comprehensive Income (Unaudited)	5
	Condensed Consolidated Statements of Changes in Shareholders’ Equity (Unaudited)	6
	Condensed Consolidated Statements of Cash Flows (Unaudited)	7
	Notes to the Unaudited Condensed Consolidated Financial Statements	8
ITEM 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	38
ITEM 3.	Quantitative and Qualitative Disclosures About Market Risk	60
ITEM 4.	Controls and Procedures	60
PART II.	Other Information
ITEM 1.	Legal Proceedings	61
ITEM 1A.	Risk Factors	61
ITEM 2.	Unregistered Sales of Equity Securities and Use of Proceeds	62
ITEM 3.	Defaults Upon Senior Securities	62
ITEM 4.	Mine Safety Disclosures	62
ITEM 5.	Other Information	62
ITEM 6.	Exhibits	63
	Signatures	64

2

ITEM 1. Financial Statements and Supplementary Data

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (Unaudited)

	September 30, 2015			December 31, 2014
	(dollars in thousands, except share data)
Assets
Cash and due from banks	$	69,235		$	72,276
Interest-bearing bank deposits	3,529			2,262
Securities available for sale, at fair value	1,050,733			1,309,819
Securities held to maturity, at amortized cost (Fair value of $154,837 at September 30, 2015)	154,035			—
Other investments	53,976			44,545
Loans held for sale	4,986			2,502
Loans:
Portfolio loans	4,575,735			4,457,308
Allowance for credit losses	(48,518		)	(52,051		)
Net loans	4,527,217			4,405,257
Premises and equipment, net	62,812			64,989
Other real estate owned	10,542			7,197
Goodwill	161,429			161,429
Amortizing intangibles, net	1,196			1,665
Bank owned life insurance	181,278			177,567
Other assets	103,781			110,777
Total assets	$	6,384,749		$	6,360,285
Liabilities
Deposits (all domestic):
Noninterest-bearing	$	1,077,234		$	989,027
Interest-bearing	3,084,256			3,326,484
Total deposits	4,161,490			4,315,511
Short-term borrowings	1,329,794			1,105,876
Subordinated debentures	72,167			72,167
Other long-term debt	39,052			89,459
Total long-term debt	111,219			161,626
Other liabilities	59,478			61,127
Total liabilities	5,661,981			5,644,140
Shareholders’ Equity
Preferred stock, $1 par value per share, 3,000,000 shares authorized, none issued	—			—
Common stock, $1 par value per share, 200,000,000 shares authorized; 105,563,455 shares issued at September 30, 2015 and December 31, 2014, and 88,961,268 and 91,723,028 shares outstanding at September 30, 2015 and December 31, 2014, respectively	105,563			105,563
Additional paid-in capital	365,950			365,615
Retained earnings	374,247			353,027
Accumulated other comprehensive income (loss), net	4,961			(4,499		)
Treasury stock (16,602,187 and 13,840,427 shares at September 30, 2015 and December 31, 2014, respectively)	(127,953		)	(103,561		)
Total shareholders’ equity	722,768			716,145
Total liabilities and shareholders’ equity	$	6,384,749		$	6,360,285

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

3

ITEM 1. Financial Statements and Supplementary Data (Continued)

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Unaudited)

	For the Three Months Ended						For the Nine Months Ended
	September 30,						September 30,
	2015			2014			2015			2014
	(dollars in thousands, except share data)
Interest Income
Interest and fees on loans	$	43,083		$	43,200		$	128,334		$	128,490
Interest and dividends on investments:
Taxable interest	6,470			7,118			20,022			21,632
Interest exempt from federal income taxes	261			104			646			172
Dividends	685			663			2,727			1,459
Interest on bank deposits	2			4			7			8
Total interest income	50,501			51,089			151,736			151,761
Interest Expense
Interest on deposits	1,757			2,974			5,787			9,897
Interest on short-term borrowings	1,279			662			3,353			1,608
Interest on subordinated debentures	588			578			1,736			1,715
Interest on other long-term debt	192			322			633			1,014
Total interest expense	3,816			4,536			11,509			14,234
Net Interest Income	46,685			46,553			140,227			137,527
Provision for credit losses	4,621			2,073			8,818			8,621
Net Interest Income after Provision for Credit Losses	42,064			44,480			131,409			128,906
Noninterest Income
Net securities gains	—			48			125			50
Trust income	1,614			1,678			4,511			4,587
Service charges on deposit accounts	4,081			4,099			11,271			12,032
Insurance and retail brokerage commissions	2,163			1,709			6,536			4,704
Income from bank owned life insurance	1,357			1,330			4,089			4,131
Gain on sale of loans	1,196			67			2,262			143
Gain on sale of other assets	444			675			1,022			4,345
Card related interchange income	3,637			3,599			10,784			10,620
Derivatives mark to market (expense) income	(783		)	(108		)	(420		)	175
Other income	1,796			1,953			5,863			6,185
Total noninterest income	15,505			15,050			46,043			46,972
Noninterest Expense
Salaries and employee benefits	22,446			22,244			66,339			65,185
Net occupancy expense	3,291			3,180			10,518			9,969
Furniture and equipment expense	2,670			4,471			7,980			15,050
Data processing expense	1,558			1,583			4,505			4,593
Advertising and promotion expense	789			861			1,946			2,346
Pennsylvania shares tax expense	1,713			1,033			3,617			2,782
Intangible amortization	157			174			469			530
Collection and repossession expense	801			783			2,229			1,941
Other professional fees and services	1,007			1,050			2,882			2,777
FDIC insurance	963			926			3,047			3,026
Loss on sale or write-down of assets	140			61			2,037			1,241
Operational losses (recoveries)	314			187			1,637			(273		)
Conversion related expenses	—			783			—			1,676
Other operating expenses	4,408			4,232			13,539			13,008
Total noninterest expense	40,257			41,568			120,745			123,851
Income Before Income Taxes	17,312			17,962			56,707			52,027
Income tax provision	4,898			5,466			16,625			15,303
Net Income	$	12,414		$	12,496		$	40,082		$	36,724
Average Shares Outstanding	88,807,294			92,567,503			89,527,560			93,627,933
Average Shares Outstanding Assuming Dilution	88,813,746			92,578,701			89,531,498			93,632,783
Per Share Data:
Basic Earnings per Share	$	0.14		$	0.13		$	0.45		$	0.39
Diluted Earnings per Share	$	0.14		$	0.13		$	0.45		$	0.39
Cash Dividends Declared per Common Share	$	0.07		$	0.07		$	0.21		$	0.21

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

4

ITEM 1. Financial Statements and Supplementary Data(Continued)

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited)

	For the Three Months Ended						For the Nine Months Ended
	September 30,						September 30,
	2015			2014			2015			2014
	(dollars in thousands)
Net Income	$	12,414		$	12,496		$	40,082		$	36,724
Other comprehensive income (loss), before tax (expense) benefit:
Unrealized holding gains (losses) on securities arising from during the period	6,344			(5,544		)	12,510			16,863
Less: reclassification adjustment for gains on securities included in net income	—			(48		)	(125		)	(50		)
Unrealized holding gains (losses) on derivatives arising from during the period	1,504			(27		)	2,172			(27		)
Less: reclassification adjustment for losses (gains) on derivatives included in net income	—			1			(6		)	1
Total other comprehensive income (loss), before tax (expense) benefit	7,848			(5,618		)	14,551			16,787
Income tax (expense) benefit related to items of other comprehensive income (loss)	(2,747		)	1,964			(5,091		)	(5,875		)
Total other comprehensive income (loss)	5,101			(3,654		)	9,460			10,912
Comprehensive Income	$	17,515		$	8,842		$	49,542		$	47,636

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

5

ITEM 1. Financial Statements and Supplementary Data(Continued)

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS’ EQUITY (Unaudited)

	Shares Outstanding		Common Stock		Additional Paid-in- Capital		Retained Earnings			Accumulated Other Comprehensive Income (Loss), net			Treasury Stock			Total Shareholders’ Equity
	(dollars in thousands, except share and per share data)
Balance at December 31, 2014	91,723,028		$	105,563	$	365,615	$	353,027		$	(4,499	)	$	(103,561	)	$	716,145
Net income							40,082									40,082
Other comprehensive income										9,460						9,460
Cash dividends declared ($0.21 per share)							(18,862		)							(18,862		)
Treasury stock acquired	(2,918,066	)											(25,383		)	(25,383		)
Treasury stock reissued	20,936				32		—						160			192
Restricted stock	135,370		—		303		—						831			1,134
Balance at September 30, 2015	88,961,268		$	105,563	$	365,950	$	374,247		$	4,961		$	(127,953	)	$	722,768

	Shares Outstanding		Common Stock		Additional Paid-in- Capital			Retained Earnings			Accumulated Other Comprehensive Income (Loss), net			Treasury Stock			Total Shareholders’ Equity
	(dollars in thousands, except share and per share data)
Balance at December 31, 2013	95,245,215		$	105,563	$	365,333		$	334,748		$	(20,588	)	$	(73,359	)	$	711,697
Net income								36,724									36,724
Other comprehensive income											10,912						10,912
Cash dividends declared ($0.21 per share)								(19,754		)							(19,754		)
Discount on dividend reinvestment plan purchases					(65		)										(65		)
Treasury stock acquired	(3,633,513	)												(30,928		)	(30,928		)
Treasury stock reissued	21,960				35			—						157			192
Restricted stock	88,987		—		273			—						433			706
Balance at September 30, 2014	91,722,649		$	105,563	$	365,576		$	351,718		$	(9,676	)	$	(103,697	)	$	709,484

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

6

ITEM 1. Financial Statements and Supplementary Data(Continued)

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)

	For the Nine Months Ended
	September 30,
	2015			2014
Operating Activities	(dollars in thousands)
Net income	$	40,082		$	36,724
Adjustment to reconcile net income to net cash provided by operating activities:
Provision for credit losses	8,818			8,621
Deferred tax expense	12,520			6,207
Depreciation and amortization	5,750			11,659
Net gains on securities and other assets	(952		)	(3,137		)
Net amortization of premiums and discounts on securities	2,012			1,610
Net accretion of premiums and discounts on long term debt	—			(37		)
Income from increase in cash surrender value of bank owned life insurance	(4,089		)	(3,904		)
Increase in interest receivable	(167		)	(339		)
Mortgage loans originated for sale	(67,708		)	(3,810		)
Proceeds from sale of mortgage loans	67,071			2,569
Decrease in interest payable	(173		)	(476		)
(Decrease) increase in income taxes payable	(22		)	1,157
Other-net	(10,757		)	772
Net cash provided by operating activities	52,385			57,616
Investing Activities
Transactions with securities held to maturity:
Proceeds from maturities and redemptions	3,828			—
Purchases	(156,756		)	—
Transactions with securities available for sale:
Proceeds from sales	—			132,868
Proceeds from maturities and redemptions	286,924			199,580
Purchases	(16,600		)	(325,955		)
Purchases of FHLB stock	(46,911		)	(32,115		)
Proceeds from the redemption of FHLB stock	36,980			16,565
Proceeds from bank owned life insurance	378			1,776
Proceeds from sale of loans	2,898			3,112
Proceeds from sale of other assets	3,668			11,314
Net increase in loans	(140,268		)	(146,863		)
Purchases of premises and equipment	(3,740		)	(9,781		)
Net cash used in investing activities	(29,599		)	(149,499		)
Financing Activities
Net increase in federal funds purchased	11,000			3,500
Net increase in other short-term borrowings	212,918			404,852
Net decrease in deposits	(154,018		)	(231,475		)
Repayments of other long-term debt	(50,407		)	(32,808		)
Proceeds from other long-term debt	—			5,000
Discount on dividend reinvestment plan purchases	—			(65		)
Dividends paid	(18,862		)	(19,754		)
Proceeds from reissuance of treasury stock	192			192
Purchase of treasury stock	(25,383		)	(30,928		)
Net cash (used in) provided by financing activities	(24,560		)	98,514
Net (decrease) increase in cash and cash equivalents	(1,774		)	6,631
Cash and cash equivalents at January 1	74,538			77,439
Cash and cash equivalents at September 30	$	72,764		$	84,070

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

7

ITEM 1. Financial Statements and Supplementary Data

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

Note 1 Basis of Presentation

The accounting and reporting policies of First Commonwealth Financial Corporation and its subsidiaries (“First Commonwealth” or the “Company”) conform with generally accepted accounting principles in the United States of America (“GAAP”). The preparation of financial statements in conformity with GAAP requires management to make estimates, assumptions and judgments that affect the amounts reported in the financial statements and accompanying notes. Actual realized amounts could differ from those estimates. In the opinion of management, the unaudited interim condensed consolidated financial statements include all adjustments (consisting of only normal recurring adjustments) necessary for a fair presentation of First Commonwealth’s financial position, results of operations, comprehensive income, cash flows and changes in shareholders’ equity as of and for the periods presented.

The results of operations for the nine months endedSeptember 30, 2015 are not necessarily indicative of the results that may be expected for the full year of 2015. These interim financial statements should be read in conjunction with First Commonwealth’s 2014 Annual Report on Form 10-K.

For purposes of reporting cash flows, cash and cash equivalents include cash on hand, amounts due from banks, federal funds sold and interest-bearing bank deposits. Generally, federal funds are sold for one-day periods.

Note 2 Supplemental Comprehensive Income Disclosures

The following table identifies the related tax effects allocated to each component of other comprehensive income (“OCI”) in the Condensed Consolidated Statements of Comprehensive Income. Reclassification adjustments related to securities available for sale are included in the "Net securities gains" line and reclassification adjustments related to losses on derivatives are included in the "Other operating expenses" line in the Condensed Consolidated Statements of Income.

	For the Nine Months Ended September 30,
	2015									2014
	Pretax Amount			Tax (Expense) Benefit			Net of Tax Amount			Pretax Amount			Tax (Expense) Benefit			Net of Tax Amount
	(dollars in thousands)
Unrealized gains on securities:
Unrealized holding gains on securities arising during the period	$	12,510		$	(4,377	)	$	8,133		$	16,863		$	(5,902	)	$	10,961
Reclassification adjustment for gains on securities included in net income	(125		)	44			(81		)	(50		)	18			(32		)
Total unrealized gains on securities	12,385			(4,333		)	8,052			16,813			(5,884		)	10,929
Unrealized gains (losses) on derivatives:
Unrealized holding gains (losses) on derivatives arising during the period	2,172			(760		)	1,412			(27		)	9			(18		)
Reclassification adjustment for (gains) losses on derivatives included in net income	(6		)	2			(4		)	1			—			1
Total unrealized (losses) gains on derivatives	2,166			(758		)	1,408			(26		)	9			(17		)
Total other comprehensive income	$	14,551		$	(5,091	)	$	9,460		$	16,787		$	(5,875	)	$	10,912

8

ITEM 1. Financial Statements and Supplementary Data

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Continued)

	For the Three Months Ended September 30,
	2015							2014
	Pretax Amount		Tax (Expense) Benefit			Net of Tax Amount		Pretax Amount			Tax (Expense) Benefit		Net of Tax Amount
	(dollars in thousands)
Unrealized gains (losses) on securities:
Unrealized holding gains (losses) on securities arising during the period	$	6,344	$	(2,221	)	$	4,123	$	(5,544	)	$	1,938	$	(3,606	)
Reclassification adjustment for gains on securities included in net income	—		—			—		(48		)	17		(31		)
Total unrealized gains (losses) on securities	6,344		(2,221		)	4,123		(5,592		)	1,955		(3,637		)
Unrealized gains (losses) on derivatives:
Unrealized holding gains (losses) on derivatives arising during the period	1,504		(526		)	978		(27		)	9		(18		)
Reclassification adjustment for losses on derivatives included in net income	—		—			—		1			—		1
Total unrealized gains on derivatives	1,504		(526		)	978		(26		)	9		(17		)
Total other comprehensive income (loss)	$	7,848	$	(2,747	)	$	5,101	$	(5,618	)	$	1,964	$	(3,654	)

The following table details the change in components of OCI for the nine months endedSeptember 30:

	2015											2014
	Securities Available for Sale			Post-Retirement Obligation		Derivatives			Accumulated Other Comprehensive Income			Securities Available for Sale			Post-Retirement Obligation		Derivatives			Accumulated Other Comprehensive Income
	(dollars in thousands)
Balance at December 31	$	(4,875	)	$	76	$	300		$	(4,499	)	$	(20,868	)	$	280	$	—		$	(20,588	)
Other comprehensive income before reclassification adjustment	8,133			—		1,412			9,545			10,961			—		(18		)	10,943
Amounts reclassified from accumulated other comprehensive (loss) income	(81		)	—		(4		)	(85		)	(32		)	—		1			(31		)
Net other comprehensive income during the period	8,052			—		1,408			9,460			10,929			—		(17		)	10,912
Balance at September 30	$	3,177		$	76	$	1,708		$	4,961		$	(9,939	)	$	280	$	(17	)	$	(9,676	)

Note 3 Supplemental Cash Flow Disclosures

The following table presents information related to cash paid during the period for interest, as well as detail on non-cash investing and financing activities for the nine months endedSeptember 30:

	2015		2014
	(dollars in thousands)
Cash paid during the period for:
Interest	$	11,682	$	14,747
Income taxes	4,000		7,700
Non-cash investing and financing activities:
Loans transferred to other real estate owned and repossessed assets	7,413		4,239
Loans transferred from held to maturity to held for sale	3,071		3,035
Gross increase in market value adjustment to securities available for sale	12,381		16,812
Gross increase (decrease) in market value adjustment to derivatives	2,167		(27		)
Investments committed to purchase, not settled	1,350		1,000

9

ITEM 1. Financial Statements and Supplementary Data

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Continued)

Note 4 Earnings per Share

The following table summarizes the composition of the weighted-average common shares (denominator) used in the basic and diluted earnings per share computations:

	For the Three Months Ended September 30,				For the Nine Months Ended September 30,
	2015		2014		2015		2014
Weighted average common shares issued	105,563,455		105,563,455		105,563,455		105,563,455
Average treasury stock shares	(16,602,502	)	(12,836,692	)	(15,858,433	)	(11,773,187	)
Average unearned nonvested shares	(153,659	)	(159,260	)	(177,462	)	(162,335	)
Weighted average common shares and common stock equivalents used to calculate basic earnings per share	88,807,294		92,567,503		89,527,560		93,627,933
Additional common stock equivalents (nonvested stock) used to calculate diluted earnings per share	6,452		11,198		3,938		4,850
Additional common stock equivalents (stock options) used to calculate diluted earnings per share	—		—		—		—
Weighted average common shares and common stock equivalents used to calculate diluted earnings per share	88,813,746		92,578,701		89,531,498		93,632,783

The following table shows the number of shares and the price per share related to common stock equivalents that were not included in the computation of diluted earnings per share for the nine months endedSeptember 30 because to do so would have been antidilutive.

	2015					2014
		Price Range					Price Range
	Shares	From		To		Shares	From		To
Stock Options	—	$	—	$	—	15,000	$	14.55	$	14.55
Restricted Stock	121,091	5.26		9.84		94,929	4.41		9.18

Note 5 Commitments and Contingent Liabilities

Commitments and Letters of Credit

Standby letters of credit and commercial letters of credit are conditional commitments issued by First Commonwealth to guarantee the performance of a customer to a third party. The contract or notional amount of these instruments reflects the maximum amount of future payments that First Commonwealth could be required to pay under the guarantees if there were a total default by the guaranteed parties, without consideration of possible recoveries under recourse provisions or from collateral held or pledged. In addition, many of these commitments are expected to expire without being drawn upon; therefore, the total commitment amounts do not necessarily represent future cash requirements.

The following table identifies the notional amount of those instruments at:

	September 30, 2015		December 31, 2014
	(dollars in thousands)
Financial instruments whose contract amounts represent credit risk:
Commitments to extend credit	$	1,576,245	$	1,635,948
Financial standby letters of credit	20,089		36,075
Performance standby letters of credit	26,317		25,915
Commercial letters of credit	2,023		2,611

The notional amounts outstanding as of September 30, 2015 include amounts issued in 2015 of $7.8 million in financial standby letters of credit and $2.3 million in performance standby letters of credit. There have been no commercial letters of credit issued during 2015. A liability of $0.2 million has been recorded as of September 30, 2015 and December 31, 2014, which represents the estimated fair value of letters of credit issued. The fair value of letters of credit is estimated based on the unrecognized portion of fees received at the time the commitment was issued.

10

ITEM 1. Financial Statements and Supplementary Data

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Continued)

Unused commitments and letters of credit provide exposure to future credit loss in the event of nonperformance by the borrower or guaranteed parties. Management’s evaluation of the credit risk related to these commitments resulted in the recording of a liability of $3.8 million as of September 30, 2015 and $3.1 million as of December 31, 2014. This liability is reflected in "Other liabilities" in the Condensed Consolidated Statements of Financial Condition. The credit risk evaluation incorporated probability of default, loss given default and estimated utilization for the next twelve months for each loan category and the letters of credit.

Legal Proceedings

There are no material legal proceedings to which First Commonwealth or its subsidiaries are a party, or of which their property is the subject, except proceedings which arise in the normal course of business and, in the opinion of management, will not have a material adverse effect on the consolidated operations, financial position, comprehensive income or cash flow of First Commonwealth or its subsidiaries.

Note 6 Investment Securities

Securities Available for Sale

Below is an analysis of the amortized cost and estimated fair values of securities available for sale at:

	September 30, 2015									December 31, 2014
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
	(dollars in thousands)
Obligations of U.S. Government Agencies:
Mortgage-Backed Securities – Residential	$	20,902	$	2,379	$	—		$	23,281	$	23,344	$	2,595	$	(3	)	$	25,936
Obligations of U.S. Government-Sponsored Enterprises:
Mortgage-Backed Securities – Residential	816,179		12,819		(4,846		)	824,152		947,635		13,076		(9,830		)	950,881
Mortgage-Backed Securities – Commercial	37		1		—			38		72		2		—			74
Other Government-Sponsored Enterprises	135,853		19		(91		)	135,781		269,181		4		(1,308		)	267,877
Obligations of States and Political Subdivisions	27,064		397		(12		)	27,449		27,058		362		(43		)	27,377
Corporate Securities	1,895		438		—			2,333		6,682		573		—			7,255
Pooled Trust Preferred Collateralized Debt Obligations	42,000		1,016		(7,237		)	35,779		41,926		309		(13,236		)	28,999
Total Debt Securities	1,043,930		17,069		(12,186		)	1,048,813		1,315,898		16,921		(24,420		)	1,308,399
Equities	1,920		—		—			1,920		1,420		—		—			1,420
Total Securities Available for Sale	$	1,045,850	$	17,069	$	(12,186	)	$	1,050,733	$	1,317,318	$	16,921	$	(24,420	)	$	1,309,819

Mortgage backed securities include mortgage backed obligations of U.S. Government agencies and obligations of U.S. Government-sponsored enterprises. These obligations have contractual maturities ranging from less than one year to approximately 30 years with lower anticipated lives to maturity due to prepayments. All mortgage backed securities contain a certain amount of risk related to the uncertainty of prepayments of the underlying mortgages. Interest rate changes have a direct impact upon prepayment speeds; therefore, First Commonwealth uses computer simulation models to test the average life and yield volatility of all mortgage backed securities under various interest rate scenarios to monitor the potential impact on earnings and interest rate risk positions.

11

ITEM 1. Financial Statements and Supplementary Data

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Continued)

Expected maturities will differ from contractual maturities because issuers may have the right to call or repay obligations with or without call or prepayment penalties. Other fixed income securities within the portfolio also contain prepayment risk.

The amortized cost and estimated fair value of debt securities available for sale at September 30, 2015, by contractual maturity, are shown below.

	Amortized Cost		Estimated Fair Value
	(dollars in thousands)
Due within 1 year	$	3,000	$	3,000
Due after 1 but within 5 years	132,852		132,781
Due after 5 but within 10 years	25,657		26,031
Due after 10 years	45,303		39,530
	206,812		201,342
Mortgage-Backed Securities (a)	837,118		847,471
Total Debt Securities	$	1,043,930	$	1,048,813

(a) Mortgage Backed Securities include an amortized cost of $20.9 million and a fair value of $23.3 million for Obligations of U.S. Government agencies issued by Ginnie Mae and an amortized cost of $816.2 million and a fair value of $824.2 million for Obligations of U.S. Government-sponsored enterprises issued by Fannie Mae and Freddie Mac.

Proceeds from sales, gross gains (losses) realized on sales, maturities and other-than-temporary impairment charges related to securities available for sale were as follows for the nine months endedSeptember 30:

	2015		2014
	(dollars in thousands)
Proceeds from sales	$	—	$	132,868
Gross gains (losses) realized:
Sales Transactions:
Gross gains	$	—	$	489
Gross losses	—		(441		)
	—		48
Maturities and impairment
Gross gains	125		2
Gross losses	—		—
Other-than-temporary impairment	—		—
	125		2
Net gains and impairment	$	125	$	50

Securities available for sale with an estimated fair value of $480.1 million and $563.2 million were pledged as of September 30, 2015 and December 31, 2014, respectively, to secure public deposits and for other purposes required or permitted by law.

12

ITEM 1. Financial Statements and Supplementary Data

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Continued)

Securities Held to Maturity

Below is an analysis of the amortized cost and fair values of debt securities held to maturity at September 30, 2015. There were no held to maturity securities at December 31, 2014.

	September 30, 2015
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
	(dollars in thousands)
Obligations of U.S. Government Agencies:
Mortgage-Backed Securities – Residential	$	4,806	$	24	$	—		$	4,830
Obligations of U.S. Government-Sponsored Enterprises:
Mortgage-Backed Securities – Residential	$	116,065	$	520	$	(6	)	$	116,579
Mortgage-Backed Securities – Commercial	15,299		176		—			15,475
Obligations of States and Political Subdivisions	17,865		131		(43		)	17,953
Total Securities Held to Maturity	$	154,035	$	851	$	(49	)	$	154,837

The amortized cost and estimated fair value of debt securities held to maturity at September 30, 2015, by contractual maturity, are shown below. Expected maturities will differ from contractual maturities because borrowers may have the right to call or repay obligations with or without call or prepayment penalties.

	Amortized Cost		Estimated Fair Value
	(dollars in thousands)
Due within 1 year	$	—	$	—
Due after 1 but within 5 years	—		—
Due after 5 but within 10 years	12,210		12,303
Due after 10 years	5,655		5,650
	17,865		17,953
Mortgage-Backed Securities (a)	136,170		136,884
Total Debt Securities	$	154,035	$	154,837

(a) Mortgage Backed Securities include an amortized cost of $4.8 million and a fair value of $4.8 million for Obligations of U.S. Government agencies issued by Ginnie Mae and an amortized cost of $131.4 million and a fair value of $132.1 million for Obligations of U.S. Government-sponsored enterprises issued by Fannie Mae and Freddie Mac.

Securities held to maturity with an amortized cost of $16.5 million were pledged as of September 30, 2015 to secure public deposits and for other purposes required or permitted by law.

Note 7 Impairment of Investment Securities

Securities Available for Sale and Held to Maturity

As required by FASB ASC Topic 320, “Investments – Debt and Equity Securities,” credit related other-than-temporary impairment on debt securities is recognized in earnings, while non-credit related other-than-temporary impairment on debt securities not expected to be sold is recognized in OCI. During the nine months endedSeptember 30, 2015 and 2014, no other-than-temporary impairment charges were recognized.

First Commonwealth utilizes the specific identification method to determine the net gain or loss on debt securities and the average cost method to determine the net gain or loss on equity securities.

13

ITEM 1. Financial Statements and Supplementary Data

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Continued)

We review our investment portfolio on a quarterly basis for indications of impairment. This review includes analyzing the length of time and the extent to which the fair value has been lower than the cost, the financial condition and near-term prospects of the issuer, including any specific events which may influence the operations of the issuer and whether we are more likely than not to sell the security. We evaluate whether we are more likely than not to sell debt securities based upon our investment strategy for the particular type of security and our cash flow needs, liquidity position, capital adequacy, tax position and interest rate risk position. In addition, the risk of future other-than-temporary impairment may be influenced by additional bank failures, weakness in the U.S. economy, changes in real estate values and additional interest deferrals in our pooled trust preferred collateralized debt obligations. Our pooled trust preferred collateralized debt obligations are beneficial interests in securitized financial assets within the scope of FASB ASC Topic 325, “Investments – Other,” and are therefore evaluated for other-than-temporary impairment using management’s best estimate of future cash flows. If these estimated cash flows indicate that it is probable that an adverse change in cash flows has occurred, then other-than-temporary impairment would be recognized in accordance with FASB ASC Topic 320. There is a risk that First Commonwealth will record other-than-temporary impairment charges in the future. See Note 10, “Fair Values of Assets and Liabilities,” for additional information.

The following table presents the gross unrealized losses and estimated fair values at September 30, 2015 for both available for sale and held to maturity securities by investment category and time frame for which securities have been in a continuous unrealized loss position:

	Less Than 12 Months						12 Months or More					Total
	Estimated Fair Value		Gross Unrealized Losses				Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses
	(dollars in thousands)
Obligations of U.S. Government Agencies:
Mortgage-Backed Securities – Residential	$	2,240	$	—		(a)	$	—	$	—		$	2,240	$	—
Obligations of U.S. Government-Sponsored Enterprises:
Mortgage-Backed Securities – Residential	78,300		(242		)		277,333		(4,610		)	355,633		(4,852		)
Other Government-Sponsored Enterprises	10,091		(9		)		91,570		(82		)	101,661		(91		)
Obligations of States and Political Subdivisions	7,123		(55		)		—		—			7,123		(55		)
Pooled Trust Preferred Collateralized Debt Obligations	—		—				30,068		(7,237		)	30,068		(7,237		)
Total Securities	$	97,754	$	(306	)		$	398,971	$	(11,929	)	$	496,725	$	(12,235	)

(a) less than $1 thousand.

At September 30, 2015, fixed income securities issued by U.S. Government-sponsored enterprises comprised 40% of total unrealized losses due to changes in market interest rates. Pooled trust preferred collateralized debt obligations accounted for 59% of the unrealized losses primarily due to the illiquid market for this investment type. Obligations of state and political subdivisions account for the remaining 1% of total unrealized losses as a result of changes in market interest rates. At September 30, 2015, there are 45 debt securities in an unrealized loss position.

14

ITEM 1. Financial Statements and Supplementary Data

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Continued)

The following table presents the gross unrealized losses and estimated fair values at December 31, 2014 by investment category and time frame for which securities have been in a continuous unrealized loss position:

	Less Than 12 Months					12 Months or More					Total
	Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses
	(dollars in thousands)
Obligations of U.S. Government Agencies:
Mortgage-Backed Securities – Residential	$	2,318	$	(3	)	$	—	$	—		$	2,318	$	(3	)
Obligations of U.S. Government-Sponsored Enterprises:
Mortgage-Backed Securities – Residential	111,646		(419		)	368,706		(9,411		)	480,352		(9,830		)
Other Government-Sponsored Enterprises	112,473		(229		)	130,401		(1,079		)	242,874		(1,308		)
Obligation of States and Political Subdivisions	3,146		(43		)	—		—			3,146		(43		)
Pooled Trust Preferred Collateralized Debt Obligations	—		—			24,356		(13,236		)	24,356		(13,236		)
Total Securities	$	229,583	$	(694	)	$	523,463	$	(23,726	)	$	753,046	$	(24,420	)

As of September 30, 2015, our corporate securities had an amortized cost and an estimated fair value of $1.9 million and $2.3 million, respectively. As of December 31, 2014, our corporate securities had an amortized cost and estimated fair value of $6.7 million and $7.3 million, respectively. Corporate securities are comprised of single issue trust preferred securities issued primarily by large regional banks. There were no corporate securities in an unrealized loss position as of September 30, 2015 and December 31, 2014. When unrealized losses exist on these investments, management reviews each of the issuer’s asset quality, earnings trends and capital position, to determine whether issues in an unrealized loss position were other-than-temporarily impaired. All interest payments on the corporate securities are being made as contractually required.

As of September 30, 2015, the book value of our pooled trust preferred collateralized debt obligations totaled $42.0 million with an estimated fair value of $35.8 million, which includes securities comprised of 275 banks and other financial institutions. All of our pooled securities are mezzanine tranches, three of which now have no senior class remaining in the issue. The credit ratings on all of our issues are below investment grade. At the time of initial issue, the subordinated tranches ranged in size from approximately 7% to 35% of the total principal amount of the respective securities and no more than 5% of any pooled security consisted of a security issued by any one institution. As of September 30, 2015, after taking into account management’s best estimates of future interest deferrals and defaults, four of our securities had no excess subordination in the tranches we own and five of our securities had excess subordination which ranged from 10% to 84% of the current performing collateral.

The following table provides information related to our pooled trust preferred collateralized debt obligations as of September 30, 2015:

Deal	Class	Book Value		Estimated Fair Value		Unrealized Gain (Loss)			Moody’s/ Fitch Ratings	Number of Banks	Deferrals and Defaults as a % of Current Collateral		Excess Subordination as a % of Current Performing Collateral
(dollars in thousands)
Pre TSL IV	Mezzanine	$	1,830	$	1,337	$	(493	)	B1/BB	6	18.05	%	57.96	%
Pre TSL VII	Mezzanine	2,905		3,494		589			Ca/-	14	49.68		—
Pre TSL VIII	Mezzanine	2,000		1,865		(135		)	C/C	29	56.74		—
Pre TSL IX	Mezzanine	2,367		1,811		(556		)	B1/C	38	29.80		10.04
Pre TSL X	Mezzanine	1,583		1,921		338			Caa1/C	43	30.66		—
Pre TSL XII	Mezzanine	5,643		4,598		(1,045		)	B3/C	66	23.07		—
Pre TSL XIII	Mezzanine	12,646		10,704		(1,942		)	B3/C	56	12.05		26.32
Pre TSL XIV	Mezzanine	12,818		9,752		(3,066		)	Caa1/CC	56	19.72		43.57
MMCap I	Mezzanine	208		297		89			Ca/C	8	58.11		84.08
Total		$	42,000	$	35,779	$	(6,221	)

15

ITEM 1. Financial Statements and Supplementary Data

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Continued)

Lack of liquidity in the market for trust preferred collateralized debt obligations, below investment grade credit ratings and market uncertainties related to the financial industry are factors contributing to the impairment on these securities.

All of the Company's pooled trust preferred securities are included in the non-exclusive list issued by the regulatory agencies and therefore are not considered covered funds under the Volcker Rule.

On a quarterly basis we evaluate our debt securities for other-than-temporary impairment. During the nine months endedSeptember 30, 2015 and 2014, there were no credit related other-than-temporary impairment charges recognized on our pooled trust preferred collateralized debt obligations. When evaluating these investments, we determine a credit-related portion and a non-credit related portion of other-than-temporary impairment. The credit related portion is recognized in earnings and represents the difference between book value and the present value of future cash flows. The non-credit related portion is recognized in OCI and represents the difference between the fair value of the security and the amount of credit-related impairment. A discounted cash flow analysis provides the best estimate of credit-related other-than-temporary impairment for these securities.

Additional information related to the discounted cash flow analysis follows:

Our pooled trust preferred collateralized debt obligations are measured for other-than-temporary impairment within the scope of FASB ASC Topic 325 by determining whether it is probable that an adverse change in estimated cash flows has occurred. Determining whether there has been an adverse change in estimated cash flows from the cash flows previously projected involves comparing the present value of remaining cash flows previously projected against the present value of the cash flows estimated at September 30, 2015. We consider the discounted cash flow analysis to be our primary evidence when determining whether credit related other-than-temporary impairment exists.

Results of a discounted cash flow test are significantly affected by other variables, such as the estimate of future cash flows, credit worthiness of the underlying banks and determination of probability of default of the underlying collateral. The following provides additional information for each of these variables:

• Estimate of Future Cash Flows – Cash flows are constructed in an INTEX cash flow model which includes each deal’s structural features. Projected cash flows include prepayment assumptions, which are dependent on the issuer's asset size and coupon rate. For collateral issued by financial institutions over $15 billion in asset size with a coupon over 7%, a 100% prepayment rate is assumed. Financial institutions over $15 billion with a coupon of 7% or under are assigned a prepayment rate of 40% for two years and 2% thereafter. Financial institutions with assets between $2 billion and $15 billion with coupons over 7% are assigned a 5% prepayment rate. For financial institutions below $2 billion, if the coupon is over 10%, a prepayment rate of 5% is assumed and for all other issuers, there is no prepayment assumption incorporated into the cash flows. The modeled cash flows are then used to estimate if all the scheduled principal and interest payments of our investments will be returned.

• Credit Analysis – A quarterly credit evaluation is performed for each of the 275 banks comprising the collateral across the various pooled trust preferred securities. Our credit evaluation considers all evidence available to us and includes the nature of the issuer’s business, its years of operating history, corporate structure, loan composition, loan concentrations, deposit mix, asset growth rates, geographic footprint and local economic environment. Our analysis focuses on profitability, return on assets, shareholders’ equity, net interest margin, credit quality ratios, operating efficiency, capital adequacy and liquidity.

• Probability of Default – A probability of default is determined for each bank and is used to calculate the expected impact of future deferrals and defaults on our expected cash flows. Each bank in the collateral pool is assigned a probability of default for each year until maturity. Currently, any bank that is in default is assigned a 100% probability of default and a 0% projected recovery rate. All other banks in the pool are assigned a probability of default based on their unique credit characteristics and market indicators with a 10% projected recovery rate. For the majority of banks currently in deferral we assume the bank continues to defer and will eventually default and, therefore, a 100% probability of default is assigned. However, for some deferring collateral there is the possibility that they become current on interest or principal payments at some point in the future and in those cases a probability that the deferral will ultimately cure is assigned. The probability of default is updated quarterly. As of September 30, 2015, default probabilities for performing collateral ranged from 0.33% to 75%.

Our credit evaluation provides a basis for determining deferral and default probabilities for each underlying piece of collateral. Using the results of the credit evaluation, the next step of the process is to look at pricing of senior debt or credit default swaps for the issuer (or where such information is unavailable, for companies having similar credit profiles as the issuer). The pricing of these market indicators provides the information necessary to determine appropriate default probabilities for each bank.

16

ITEM 1. Financial Statements and Supplementary Data

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Continued)

In addition to the above factors, our evaluation of impairment also includes a stress test analysis which provides an estimate of excess subordination for each tranche. We stress the cash flows of each pool by increasing current default assumptions to the level of defaults that results in an adverse change in estimated cash flows. This stressed breakpoint is then used to calculate excess subordination levels for each pooled trust preferred security. The results of the stress test allow management to identify those pools that are at a greater risk for a future break in cash flows so that we can monitor banks in those pools more closely for potential deterioration of credit quality.

Our cash flow analysis as of September 30, 2015, indicates that no credit-related other-than-temporary impairment has occurred on our pooled trust preferred securities during the nine months endedSeptember 30, 2015. Based upon the analysis performed by management, it is probable that four of our pooled trust preferred securities will experience principal and interest shortfalls and therefore appropriate other-than-temporary charges were recorded in prior periods. These securities are identified in the table on page 15 with 0% “Excess Subordination as a Percentage of Current Performing Collateral.” For the remaining securities listed in that table, our analysis as of September 30, 2015 indicates it is probable that we will collect all contractual principal and interest payments. For four of those securities, PreTSL IX, PreTSL XIII, PreTSL XIV and MMCap I, other-than-temporary impairment charges were recorded in prior periods; however, due to improvement in the expected cash flows of these securities, it is now probable that all contractual payments will be received.

During 2008, 2009 and 2010, other-than-temporary impairment charges were recognized on all of our pooled trust preferred securities, except for PreTSL IV. Our cash flow analysis as of September 30, 2015, for all of these impaired securities indicates that it is now probable we will collect principal and interest in excess of what was estimated at the time other-than-temporary impairment charges were recorded. This change can be attributed to improvement in the underlying collateral for these securities and has resulted in the present value of estimated future principal and interest payments exceeding the securities' current book value. The excess for each bond of the present value of future cash flows over our current book value ranges from 21% to 136% and will be recognized as an adjustment to yield over the remaining life of these securities. The excess subordination recognized as an adjustment to yield is reflected in the following table as increases in cash flows expected to be collected.

The following table provides a cumulative roll forward of credit losses recognized in earnings for debt securities held and not intended to be sold:

	For the Three Months Ended September 30,						For the Nine Months Ended September 30,
	2015			2014			2015			2014
	(dollars in thousands)
Balance, beginning (a)	$	25,366		$	26,842		$	26,246		$	27,543
Credit losses on debt securities for which other-than-temporary impairment was not previously recognized	—			—			—			—
Additional credit losses on debt securities for which other-than-temporary impairment was previously recognized	—			—			—			—
Increases in cash flows expected to be collected, recognized over the remaining life of the security (b)	(255		)	(288		)	(917		)	(989		)
Reduction for debt securities called during the period	—			—			(218		)	—
Balance, ending	$	25,111		$	26,554		$	25,111		$	26,554

(a) The beginning balance represents credit related losses included in other-than-temporary impairment charges recognized on debt securities in prior periods.

(b) Represents the increase in cash flows recognized in interest income during the period.

In the first nine months of 2015 and 2014, no other-than-temporary impairment charges were recorded on equity securities. On a quarterly basis, management evaluates equity securities for other-than-temporary impairment by reviewing the severity and duration of decline in estimated fair value, research reports, analysts’ recommendations, credit rating changes, news stories, annual reports, regulatory filings, impact of interest rate changes and other relevant information. As of September 30, 2015 and 2014, there were no equity securities in an unrealized loss position.

Other Investments

As a member of the Federal Home Loan Bank ("FHLB"), First Commonwealth is required to purchase and hold stock in the FHLB to satisfy membership and borrowing requirements. The level of stock required to be held is dependent on the amount of First Commonwealth's mortgage-related assets and outstanding borrowings with the FHLB. This stock is restricted in that it can only be sold to the FHLB or to another member institution, and all sales of FHLB stock must be at par. As a result of these restrictions, FHLB stock is unlike other investment securities insofar as there is no trading market for FHLB stock and the

17

ITEM 1. Financial Statements and Supplementary Data

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Continued)

transfer price is determined by FHLB membership rules and not by market participants. As of September 30, 2015 and December 31, 2014, our FHLB stock totaled $54.0 million and $44.5 million, respectively, and is included in “Other investments” on the Condensed Consolidated Statements of Financial Condition.

FHLB stock is held as a long-term investment and its value is determined based on the ultimate recoverability of the par value. First Commonwealth evaluates impairment quarterly and has concluded that the par value of its investment in FHLB stock will be recovered. Accordingly, no impairment charge was recorded on these securities during the nine months ended September 30, 2015.

Note 8 Loans and Allowance for Credit Losses

The following table provides outstanding balances related to each of our loan types:

	September 30, 2015		December 31, 2014
	(dollars in thousands)
Commercial, financial, agricultural and other	$	1,126,881	$	1,052,109
Real estate construction	179,710		120,785
Residential real estate	1,204,220		1,226,344
Commercial real estate	1,435,954		1,405,256
Loans to individuals	628,970		652,814
Total loans and leases net of unearned income	$	4,575,735	$	4,457,308

Credit Quality Information

As part of the on-going monitoring of credit quality within the loan portfolio, the following credit worthiness categories are used in grading our loans:

Pass Acceptable levels of risk exist in the relationship. Includes all loans not classified as OAEM, substandard or doubtful.

Other Assets Especially Mentioned (OAEM) Potential weaknesses that deserve management’s close attention. The potential weaknesses may result in deterioration of the repayment prospects or weaken the Company’s credit position at some future date. The credit risk may be relatively minor, yet constitute an undesirable risk in light of the circumstances surrounding the specific credit. No loss of principal or interest is expected.

Substandard Well-defined weakness or a weakness that jeopardizes the repayment of the debt. A loan may be classified as substandard as a result of deterioration of the borrower’s financial condition and repayment capacity. Loans for which repayment plans have not been met or collateral equity margins do not protect the Company may also be classified as substandard.

Doubtful Loans with the characteristics of substandard loans with the added characteristic that collection or liquidation in full, on the basis of presently existing facts and conditions, is highly improbable.

The use of creditworthiness categories to grade loans permits management’s use of migration analysis to estimate a portion of credit risk. The Company’s internal creditworthiness grading system provides a measurement of credit risk based primarily on an evaluation of the borrower’s cash flow and collateral. Movement between these rating categories provides a predictive measure of credit losses and therefore assists in determining the appropriate level for the loan loss reserves. Category ratings are reviewed each quarter, at which time management analyzes the results, as well as other external statistics and factors related to loan performance. Loans that migrate towards higher risk rating levels generally have an increased risk of default, whereas loans that migrate toward lower risk ratings generally will result in a lower risk factor being applied to those related loan balances.

18

ITEM 1. Financial Statements and Supplementary Data

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Continued)

The following tables represent our credit risk profile by creditworthiness:

	September 30, 2015
	Commercial, financial, agricultural and other		Real estate construction		Residential real estate		Commercial real estate		Loans to individuals		Total
	(dollars in thousands)
Pass	$	1,043,458	$	179,229	$	1,192,888	$	1,394,506	$	628,735	$	4,438,816
Non-Pass
OAEM	22,447		450		2,926		29,373		—		55,196
Substandard	60,976		31		8,406		12,075		235		81,723
Doubtful	—		—		—		—		—		—
Total Non-Pass	83,423		481		11,332		41,448		235		136,919
Total	$	1,126,881	$	179,710	$	1,204,220	$	1,435,954	$	628,970	$	4,575,735

	December 31, 2014
	Commercial, financial, agricultural and other		Real estate construction		Residential real estate		Commercial real estate		Loans to individuals		Total
	(dollars in thousands)
Pass	$	983,357	$	112,536	$	1,214,920	$	1,353,773	$	652,596	$	4,317,182
Non-Pass
OAEM	32,563		8,013		2,315		29,479		—		72,370
Substandard	32,028		236		9,109		22,004		218		63,595
Doubtful	4,161		—		—		—		—		4,161
Total Non-Pass	68,752		8,249		11,424		51,483		218		140,126
Total	$	1,052,109	$	120,785	$	1,226,344	$	1,405,256	$	652,814	$	4,457,308

Portfolio Risks

The credit quality of our loan portfolio can potentially represent significant risk to our earnings, capital, regulatory agency relationships, investment community reputation and shareholder returns. First Commonwealth devotes a substantial amount of resources managing this risk primarily through our credit administration department that develops and administers policies and procedures for underwriting, maintaining, monitoring and collecting activities. Credit administration is independent of lending departments and oversight is provided by the credit committee of the First Commonwealth Board of Directors.

Criticized loans have been evaluated when determining the appropriateness of the allowance for credit losses, which we believe is adequate to absorb losses inherent to the portfolio as of September 30, 2015. However, changes in economic conditions, interest rates, borrower financial condition, delinquency trends or previously established fair values of collateral factors could significantly change those judgmental estimates.

19

ITEM 1. Financial Statements and Supplementary Data

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Continued)

Age Analysis of Past Due Loans by Segment

The following tables delineate the aging analysis of the recorded investments in past due loans as of September 30, 2015 and December 31, 2014. Also included in these tables are loans that are 90 days or more past due and still accruing because they are well-secured and in the process of collection.

	September 30, 2015
	30 - 59 days past due		60 - 89 days past due		90 days and greater and still accruing		Nonaccrual		Total past due and nonaccrual		Current		Total
	(dollars in thousands)
Commercial, financial, agricultural and other	$	3,817	$	59	$	149	$	17,334	$	21,359	$	1,105,522	$	1,126,881
Real estate construction	—		—		—		31		31		179,679		179,710
Residential real estate	3,562		1,187		618		6,563		11,930		1,192,290		1,204,220
Commercial real estate	35		442		331		4,640		5,448		1,430,506		1,435,954
Loans to individuals	2,624		756		956		235		4,571		624,399		628,970
Total	$	10,038	$	2,444	$	2,054	$	28,803	$	43,339	$	4,532,396	$	4,575,735

	December 31, 2014
	30 - 59 days past due		60 - 89 days past due		90 days and greater and still accruing		Nonaccrual		Total past due and nonaccrual		Current		Total
	(dollars in thousands)
Commercial, financial, agricultural and other	$	2,816	$	213	$	264	$	27,007	$	30,300	$	1,021,809	$	1,052,109
Real estate construction	—		1		—		236		237		120,548		120,785
Residential real estate	5,162		1,295		1,077		7,900		15,434		1,210,910		1,226,344
Commercial real estate	1,797		122		—		7,306		9,225		1,396,031		1,405,256
Loans to individuals	3,698		1,059		1,278		218		6,253		646,561		652,814
Total	$	13,473	$	2,690	$	2,619	$	42,667	$	61,449	$	4,395,859	$	4,457,308

Nonaccrual Loans

The previous tables summarize nonaccrual loans by loan segment. The Company generally places loans on nonaccrual status when the full and timely collection of interest or principal becomes uncertain, when part of the principal balance has been charged off and no restructuring has occurred, or the loans reach a certain number of days past due. Generally, loans 90 days or more past due are placed on nonaccrual status, except for consumer loans, which are placed in nonaccrual status at 150 days past due.

When a loan is placed on nonaccrual, the accrued unpaid interest receivable is reversed against interest income and all future payments received are applied as a reduction to the loan principal. Generally, the loan is returned to accrual status when (a) all delinquent interest and principal becomes current under the terms of the loan agreement or (b) the loan is both well-secured and in the process of collection and collectability is no longer in doubt.

Impaired Loans

Management considers loans to be impaired when, based on current information and events, it is determined that the Company will not be able to collect all amounts due according to the loan contract, including scheduled interest payments. Determination of impairment is treated the same across all loan categories. When management identifies a loan as impaired, the impairment is measured based on the present value of expected future cash flows, discounted at the loan’s effective interest rate, except when the sole source for repayment of the loan is the operation or liquidation of collateral. When the loan is collateral dependent, the appraised value less estimated cost to sell is utilized. If management determines the value of the impaired loan is less than the

20

ITEM 1. Financial Statements and Supplementary Data

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Continued)

recorded investment in the loan, impairment is recognized through an allowance estimate or a charge-off to the allowance. Troubled debt restructured loans on accrual status are also considered to be impaired loans.

When the ultimate collectability of the total principal of an impaired loan is in doubt and the loan is on nonaccrual status, all payments are applied to principal under the cost recovery method. When the ultimate collectability of the total principal of an impaired loan is not in doubt and the loan is on nonaccrual status, contractual interest is credited to interest income when received under the cash basis method.

There were no impaired loans held for sale at September 30, 2015 and December 31, 2014. During the nine months endedSeptember 30, 2015, $2.4 million of impaired loans were sold, resulting in the recognition of a gain of $0.4 million. During the nine months endedSeptember 30, 2014, $3.1 million of impaired loans were sold, resulting in the recognition of a gain of $0.1 million.

Significant nonaccrual loans as of September 30, 2015, include the following:

• $6.1 million relationship of commercial industrial loans to an industrial manufacturer. These loans were originated in 2013 and were placed in nonaccrual status during the third quarter of 2015. A valuation of the collateral was completed during the third quarter of 2015.

• $5.7 million relationship of commercial industrial loans to a local energy company. These loans were originated from 2008 to 2011 and were placed in nonaccrual status during the third quarter of 2013. Two of these loans were modified resulting in TDR classification: one loan totaling $2.3 million was modified in 2012, and the other loan totaling $2.9 million was modified in 2014. During the nine months endedSeptember 30, 2015, charge-offs of $3.3 million related to this relationship were recorded. A valuation of the collateral was updated during the first quarter of 2015.

The following tables include the recorded investment and unpaid principal balance for impaired loans with the associated allowance amount, if applicable, as of September 30, 2015 and December 31, 2014. Also presented are the average recorded investment in impaired loans and the related amount of interest recognized while the loan was considered impaired. Average balances are calculated using month-end balances of the loans for the period reported and are included in the table below based on their period-end allowance position.

	September 30, 2015						December 31, 2014
	Recorded investment		Unpaid principal balance		Related allowance		Recorded investment		Unpaid principal balance		Related allowance
	(dollars in thousands)
With no related allowance recorded:
Commercial, financial, agricultural and other	$	10,581	$	15,618			$	9,439	$	10,937
Real estate construction	31		119				236		476
Residential real estate	9,778		11,399				10,773		12,470
Commercial real estate	6,885		7,862				8,768		10,178
Loans to individuals	296		358				288		337
Subtotal	27,571		35,356				29,504		34,398
With an allowance recorded:
Commercial, financial, agricultural and other	12,812		13,254		4,202		24,826		25,583		9,304
Real estate construction	—		—		—		—		—		—
Residential real estate	364		556		20		367		380		56
Commercial real estate	80		80		33		554		554		101
Loans to individuals	—		—		—		—		—		—
Subtotal	13,256		13,890		4,255		25,747		26,517		9,461
Total	$	40,827	$	49,246	$	4,255	$	55,251	$	60,915	$	9,461

21

ITEM 1. Financial Statements and Supplementary Data

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Continued)

	For the Nine Months Ended September 30,
	2015				2014
	Average recorded investment		Interest Income Recognized		Average recorded investment		Interest Income Recognized
	(dollars in thousands)
With no related allowance recorded:
Commercial, financial, agricultural and other	$	19,199	$	161	$	15,209	$	77
Real estate construction	102		—		1,506		19
Residential real estate	10,987		118		11,047		167
Commercial real estate	8,545		69		9,007		78
Loans to individuals	312		14		309		3
Subtotal	39,145		362		37,078		344
With an allowance recorded:
Commercial, financial, agricultural and other	6,125		100		11,944		125
Real estate construction	—		—		—		—
Residential real estate	275		—		1,178		12
Commercial real estate	83		4		90		3
Loans to individuals	—		—		—		—
Subtotal	6,483		104		13,212		140
Total	$	45,628	$	466	$	50,290	$	484

	For the Three Months Ended September 30,
	2015				2014
	Average recorded investment		Interest Income Recognized		Average recorded investment		Interest Income Recognized
	(dollars in thousands)
With no related allowance recorded:
Commercial, financial, agricultural and other	$	14,215	$	40	$	10,973	$	39
Real estate construction	32		—		295		1
Residential real estate	10,748		39		10,590		38
Commercial real estate	7,894		26		8,873		24
Loans to individuals	314		5		346		1
Subtotal	33,203		110		31,077		103
With an allowance recorded:
Commercial, financial, agricultural and other	7,700		29		14,140		48
Real estate construction	—		—		—		—
Residential real estate	351		—		1,406		3
Commercial real estate	81		1		88		2
Loans to individuals	—		—		—		—
Subtotal	8,132		30		15,634		53
Total	$	41,335	$	140	$	46,711	$	156

Unfunded commitments related to nonperforming loans were $0.5 million at September 30, 2015 and $46 thousand at December 31, 2014. After consideration of available collateral related to these commitments, a reserve of $13 thousand and $14 thousand was established for these off balance sheet exposures at September 30, 2015 and December 31, 2014, respectively.

Troubled debt restructured loans are those loans whose terms have been renegotiated to provide a reduction or deferral of principal or interest as a result of the financial difficulties experienced by the borrower, who could not obtain comparable terms from alternate financing sources.

22

ITEM 1. Financial Statements and Supplementary Data

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Continued)

The following table provides detail as to the total troubled debt restructured loans and total commitments outstanding on troubled debt restructured loans:

	September 30, 2015		December 31, 2014
	(dollars in thousands)
Troubled debt restructured loans
Accrual status	$	12,024	$	12,584
Nonaccrual status	8,583		16,952
Total	$	20,607	$	29,536
Commitments
Unused lines of credit	$	1,162	$	4,120

The following tables provide detail, including specific reserves and reasons for modification, related to loans identified as troubled debt restructurings:

	For the Nine Months Ended September 30, 2015
		Type of Modification
	Number of Contracts	Extend Maturity		Modify Rate		Modify Payments		Total Pre-Modification Outstanding Recorded Investment		Post- Modification Outstanding Recorded Investment		Specific Reserve
	(dollars in thousands)
Commercial, financial, agricultural and other	4	$	1,751	$	—	$	652	$	2,403	$	2,314	$	52
Residential real estate	24	—		296		958		1,254		1,165		—
Commercial real estate	1	—		—		464		464		407		—
Loans to individuals	8	—		61		35		96		77		—
Total	37	$	1,751	$	357	$	2,109	$	4,217	$	3,963	$	52

	For the Nine Months Ended September 30, 2014
		Type of Modification
	Number of Contracts	Extend Maturity		Modify Rate		Modify Payments		Total Pre-Modification Outstanding Recorded Investment		Post- Modification Outstanding Recorded Investment		Specific Reserve
	(dollars in thousands)
Commercial, financial, agricultural and other	2	$	1,505	$	—	$	—	$	1,505	$	1,648	$	27
Residential real estate	44	—		468		1,767		2,235		2,091		22
Commercial real estate	1	—		—		8		8		6		—
Loans to individuals	13	—		81		42		123		101		—
Total	60	$	1,505	$	549	$	1,817	$	3,871	$	3,846	$	49

The troubled debt restructurings included in the above tables are also included in the impaired loan tables provided earlier in this note. Loans defined as modified due to a change in rate may include loans that were modified for a change in rate as well as a reamortization of the principal and an extension of the maturity. For the nine months endedSeptember 30, 2015 and 2014, $0.4 million and $0.5 million, respectively, of total rate modifications represent loans with modifications to the rate as well as payment as a result of reamortization. For both 2015 and 2014 the changes in loan balances between the pre-modification balance and the post-modification balance are due to customer payments.

23

ITEM 1. Financial Statements and Supplementary Data

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Continued)

The following tables provide detail, including specific reserves and reasons for modification, related to loans identified as troubled debt restructurings:

	For the Three Months Ended September 30, 2015
		Type of Modification
	Number of Contracts	Extend Maturity		Modify Rate		Modify Payments		Total Pre-Modification Outstanding Recorded Investment		Post- Modification Outstanding Recorded Investment		Specific Reserve
	(dollars in thousands)
Commercial, financial, agricultural and other	1	$	—	$	—	$	543	$	543	$	525	$	—
Residential real estate	8	$	—	$	—	$	455	$	455	$	455	$	—
Loans to individuals	2	—		—		18		18		16		—
Total	11	$	—	$	—	$	1,016	$	1,016	$	996	$	—

	For the Three Months Ended, September 30, 2014
		Type of Modification
	Number of Contracts	Extend Maturity		Modify Rate		Modify Payments		Total Pre-Modification Outstanding Recorded Investment		Post- Modification Outstanding Recorded Investment		Specific Reserve
	(dollars in thousands)
Residential real estate	24	—		164		1,116		1,280		1,233		2
Loans to individuals	3	—		8		15		23		20		—
Total	27	$	—	$	172	$	1,131	$	1,303	$	1,253	$	2

The troubled debt restructurings included in the above tables are also included in the impaired loan tables provided earlier in this note. Loans defined as modified due to a change in rate may include loans that were modified for a change in rate as well as a reamortization of the principal and an extension of the maturity. None of the rate modifications for the three months endedSeptember 30, 2015 represent loans with modifications to the rate as well as payment. For the three months endedSeptember 30, 2014, $0.1 million of total rate modifications represent loans with modifications to the rate as well as payment as a result of reamortization. For both 2015 and 2014 the changes in loan balances between the pre-modification balance and the post-modification balance are due to customer payments.

24

ITEM 1. Financial Statements and Supplementary Data

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Continued)

A troubled debt restructuring is considered to be in default when a restructured loan is 90 days or more past due. The following table provides information related to restructured loans that were considered to be in default during the nine months endedSeptember 30:

	2015			2014
	Number of Contracts	Recorded Investment		Number of Contracts	Recorded Investment
	(dollars in thousands)
Residential real estate	3	$	108	3	$	18
Total	3	$	108	3	$	18

The following table provides information related to restructured loans that were considered to be in default during the three months endedSeptember 30:

	2015			2014
	Number of Contracts	Recorded Investment		Number of Contracts	Recorded Investment
	(dollars in thousands)
Residential real estate	2	$	105	1	$	5
Total	2	$	105	1	$	5

The following tables provide detail related to the allowance for credit losses:

	For the Nine Months Ended September 30, 2015
	Commercial, financial, agricultural and other			Real estate construction			Residential real estate			Commercial real estate			Loans to individuals			Total
	(dollars in thousands)
Allowance for credit losses:
Beginning Balance	$	29,627		$	2,063		$	3,664		$	11,881		$	4,816		$	52,051
Charge-offs	(8,579		)	—			(1,351		)	(1,249		)	(3,283		)	(14,462		)
Recoveries	922			84			417			186			502			2,111
Provision (credit)	5,230			(554		)	(54		)	1,584			2,612			8,818
Ending Balance	$	27,200		$	1,593		$	2,676		$	12,402		$	4,647		$	48,518
Ending balance: individually evaluated for impairment	$	4,202		$	—		$	20		$	33		$	—		$	4,255
Ending balance: collectively evaluated for impairment	22,998			1,593			2,656			12,369			4,647			44,263
Loans:
Ending balance	1,126,881			179,710			1,204,220			1,435,954			628,970			4,575,735
Ending balance: individually evaluated for impairment	22,852			—			6,037			5,706			—			34,595
Ending balance: collectively evaluated for impairment	1,104,029			179,710			1,198,183			1,430,248			628,970			4,541,140

25

ITEM 1. Financial Statements and Supplementary Data

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Continued)

	For the Nine Months Ended September 30, 2014
	Commercial, financial, agricultural and other			Real estate construction			Residential real estate			Commercial real estate			Loans to individuals			Total
	(dollars in thousands)
Allowance for credit losses:
Beginning Balance	$	22,663		$	6,600		$	7,727		$	11,778		$	5,457		$	54,225
Charge-offs	(8,357		)	(296		)	(2,286		)	(1,109		)	(2,581		)	(14,629		)
Recoveries	625			469			420			432			621			2,567
Provision (credit)	4,773			1,331			(407		)	1,453			1,471			8,621
Ending Balance	$	19,704		$	8,104		$	5,454		$	12,554		$	4,968		$	50,784
Ending balance: individually evaluated for impairment	$	4,271		$	—		$	332		$	29		$	—		$	4,632
Ending balance: collectively evaluated for impairment	15,433			8,104			5,122			12,525			4,968			46,152
Loans:
Ending balance	1,071,531			115,788			1,234,842			1,345,302			644,018			4,411,481
Ending balance: individually evaluated for impairment	23,773			199			6,854			6,890			—			37,716
Ending balance: collectively evaluated for impairment	1,047,758			115,589			1,227,988			1,338,412			644,018			4,373,765

	For the Three Months Ended September 30, 2015
	Commercial, financial, agricultural and other			Real estate construction		Residential real estate			Commercial real estate			Loans to individuals			Total
	(dollars in thousands)
Allowance for credit losses:
Beginning Balance	$	23,755		$	1,518	$	2,923		$	12,227		$	4,921		$	45,344
Charge-offs	(639		)	—		(301		)	(561		)	(900		)	(2,401		)
Recoveries	564			—		178			33			179			954
Provision (credit)	3,520			75		(124		)	703			447			4,621
Ending Balance	$	27,200		$	1,593	$	2,676		$	12,402		$	4,647		$	48,518

	For the Three Months Ended, September 30, 2014
	Commercial, financial, agricultural and other			Real estate construction		Residential real estate			Commercial real estate			Loans to individuals			Total
	(dollars in thousands)
Allowance for credit losses:
Beginning Balance	$	21,956		$	5,899	$	6,125		$	11,661		$	5,084		$	50,725
Charge-offs	(498		)	—		(551		)	(812		)	(1,019		)	(2,880		)
Recoveries	204			132		97			177			256			866
Provision (credit)	(1,958		)	2,073		(217		)	1,528			647			2,073
Ending Balance	$	19,704		$	8,104	$	5,454		$	12,554		$	4,968		$	50,784

Note 9 Income Taxes

At September 30, 2015 and December 31, 2014, First Commonwealth had no material unrecognized tax benefits or accrued interest and penalties. If applicable, First Commonwealth will record interest and penalties as a component of noninterest expense. Federal and state tax years 2012 through 2014 were open for examination as of September 30, 2015.

26

ITEM 1. Financial Statements and Supplementary Data

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Continued)

Note 10 Fair Values of Assets and Liabilities

FASB ASC Topic 820, “Fair Value Measurements and Disclosures”, requires disclosures for non-financial assets and non-financial liabilities, except for items that are recognized or disclosed at fair value in the financial statements on a recurring basis (at least annually). All non-financial assets are included either as a separate line item on the Condensed Consolidated Statements of Financial Condition or in the “Other assets” category of the Condensed Consolidated Statements of Financial Condition. Currently, First Commonwealth does not have any non-financial liabilities to disclose.

FASB ASC Topic 825, “Financial Instruments”, permits entities to irrevocably elect to measure select financial instruments and certain other items at fair value. The unrealized gains and losses are required to be included in earnings each reporting period for the items that fair value measurement is elected. First Commonwealth has elected not to measure any existing financial instruments at fair value under FASB ASC Topic 825; however, in the future we may elect to adopt this guidance for select financial instruments.

In accordance with FASB ASC Topic 820, First Commonwealth groups financial assets and financial liabilities measured at fair value in three levels based on the principal markets in which the assets and liabilities are transacted and the observability of the data points used to determine fair value. These levels are:

• Level 1 – Valuations for assets and liabilities traded in active exchange markets, such as the New York Stock Exchange (“NYSE”). Valuations are obtained from readily available pricing sources for market transactions involving identical assets or liabilities. Level 1 securities include equity holdings comprised of publicly traded bank stocks which were priced using quoted market prices.

• Level 2 – Valuations for assets and liabilities traded in less active dealer or broker markets. Valuations are obtained for identical or comparable assets or liabilities from alternative pricing sources with reasonable levels of price transparency. Level 2 includes Obligations of U.S. Government securities issued by Agencies and Sponsored Enterprises, Obligations of States and Political Subdivisions, corporate securities, FHLB stock, loans held for sale, interest rate derivatives (including interest rate caps, interest rate swaps and risk participation agreements), certain other real estate owned and certain impaired loans.

Level 2 investment securities are valued by a recognized third party pricing service using observable inputs. The model used by the pricing service varies by asset class and incorporates available market, trade and bid information as well as cash flow information when applicable. Because many fixed-income investment securities do not trade on a daily basis, the model uses available information such as benchmark yield curves, benchmarking of like investment securities, sector groupings and matrix pricing. The model will also use processes such as an option adjusted spread to assess the impact of interest rates and to develop prepayment estimates. Market inputs normally used in the pricing model include benchmark yields, reported trades, broker/dealer quotes, issuer spreads, two-sided markets, benchmark securities, bids, offers and reference data including market research publications.

Management validates the market values provided by the third party service by having another recognized pricing service price 100% of the securities on an annual basis and a random sample of securities each quarter, monthly monitoring of variances from prior period pricing and, on a monthly basis, evaluating pricing changes compared to expectations based on changes in the financial markets.

Other investments recorded in the Condensed Consolidated Statements of Financial Condition are comprised of FHLB stock whose estimated fair value is based on its par value. Additional information on FHLB stock is provided in Note 7, “Impairment of Investment Securities.”

Loans held for sale include residential mortgage loans originated for sale in the secondary mortgage market. The estimated fair value for these loans was determined on the basis of rates obtained in the respective secondary market.

Interest rate derivatives are reported at an estimated fair value utilizing Level 2 inputs and are included in other assets and other liabilities, and consist of interest rate swaps where there is no significant deterioration in the counterparties' (loan customers') credit risk since origination of the interest rate swap as well as interest rate caps and risk participation agreements. First Commonwealth values its interest rate swap and cap positions using a yield curve by taking market prices/rates for an appropriate set of instruments. The set of instruments currently used to determine the U.S. Dollar yield curve includes cash LIBOR rates from overnight to three months, Eurodollar futures contracts and swap rates from three years to thirty years. These yield curves determine the valuations of interest rate swaps. Interest rate derivatives are further described in Note 11, “Derivatives.”

27

ITEM 1. Financial Statements and Supplementary Data

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Continued)

For purposes of potential valuation adjustments to our derivative positions, First Commonwealth evaluates the credit risk of its counterparties as well as our own credit risk. Accordingly, we have considered factors such as the likelihood of default, expected loss given default, net exposures and remaining contractual life, among other things, in determining if any fair value adjustments related to credit risk are required. We review our counterparty exposure quarterly, and when necessary, appropriate adjustments are made to reflect the exposure.

We also utilize this approach to estimate our own credit risk on derivative liability positions. In 2015, we have not realized any losses due to a counterparty's inability to pay any uncollateralized positions.

The estimated fair value for other real estate owned included in Level 2 is determined by either an independent market-based appraisal less estimated costs to sell or an executed sales agreement.

• Level 3 – Valuations for assets and liabilities that are derived from other valuation methodologies, including option pricing models, discounted cash flow models and similar techniques, and not based on market exchange, dealer or broker traded transactions. If the inputs used to provide the valuation are unobservable and/or there is very little, if any, market activity for the security or similar securities, the securities would be considered Level 3 securities. Level 3 valuations incorporate certain assumptions and projections in determining the fair value assigned to such assets or liabilities. The assets included in Level 3 are pooled trust preferred collateralized debt obligations, non-marketable equity investments, certain interest rate derivatives, certain other real estate owned and certain impaired loans.

Our pooled trust preferred collateralized debt obligations are collateralized by the trust preferred securities of individual banks, thrifts and bank holding companies in the United States. There has been little or no active trading in these securities since 2009; therefore, it is more appropriate to determine estimated fair value using a discounted cash flow analysis. Detail on our process for determining the appropriate cash flows for this analysis is provided in Note 7, “Impairment of Investment Securities.” The discount rate applied to the cash flows is determined by evaluating the current market yields for comparable corporate and structured credit products along with an evaluation of the risks associated with the cash flows of the comparable security. Due to the fact that there is no active market for the pooled trust preferred collateralized debt obligations, one key reference point is the market yield for the single issue trust preferred securities issued by banks and thrifts for which there is more activity than for the pooled securities. Adjustments are then made to reflect the credit and structural differences between these two security types.

Management validates the fair value of the pooled trust preferred collateralized debt obligations by monitoring the performance of the underlying collateral, discussing the discount rate, cash flow assumptions and general market trends with the specialized third party and confirming changes in the underlying collateral to the trustee reports. Management’s monitoring of the underlying collateral includes deferrals of interest payments, payment defaults, cures of previously deferred interest payments, any regulatory filings or actions and general news related to the underlying collateral. Management also evaluates fair value changes compared to expectations based on changes in the interest rates used in determining the discount rate and general financial markets.

The estimated fair value of the non-marketable equity investments included in Level 3 is based on par value.

For interest rate derivatives included in Level 3, the fair value incorporates credit risk by considering such factors as likelihood of default and expected loss given default based on the credit quality of the underlying counterparties (loan customers).

28

ITEM 1. Financial Statements and Supplementary Data

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Continued)

In accordance with ASU 2011-4, the following table provides information related to quantitative inputs and assumptions used in Level 3 fair value measurements.

	Fair Value (dollars in thousands)			Valuation Technique	Unobservable Inputs	Range / (weighted average)
Pooled Trust Preferred Securities	$	35,779		Discounted Cash Flow	Probability of default	0% - 100% (13.72%)
					Prepayment rates	0% - 73.52% (5.09%)
					Discount rates	5.25% - 12.00% (a)
Equities	1,920			Par Value	N/A	N/A
Impaired Loans	2,903		(b)	Reserve study	Discount rate	10.00%
					Gas per MCF	$2.71 - $3.48 (c)
					Oil per BBL/d	$55.00 (c)
	520		(b)	Discounted Cash Flow	Discount Rate	1.90%
Other Real Estate Owned	8			Internal Valuation	N/A	N/A

(a) incorporates spread over risk free rate related primarily to credit quality and illiquidity of securities.

(b) the remainder of impaired loans valued using Level 3 inputs are not included in this disclosure as the values of those loans are based on bankruptcy agreement documentation.

(c) unobservable inputs are defined as follows: MCF - million cubic feet; BBL/d - barrels per day.

The significant unobservable inputs used in the fair value measurement of pooled trust preferred securities are the probability of default, discount rates and prepayment rates. Significant increases in the probability of default or discount rate used would result in a decrease in the estimated fair value of these securities, while decreases in these variables would result in higher fair value measurements. In general, a change in the assumption of probability of default is accompanied by a directionally similar change in the discount rate. In most cases, increases in the prepayment rate assumptions would result in a higher estimated fair value for these securities while decreases would provide for a lower value. The direction of this change is somewhat dependent on the structure of the investment and the amount of the investment tranches senior to our position.

The discount rate is the significant unobservable input used in the fair value measurement of impaired loans. Significant increases in this rate would result in a decrease in the estimated fair value of the loans, while a decrease in this rate would result in a higher fair value measurement. Other unobservable inputs in the fair value measurement of impaired loans relate to gas, oil and natural gas prices. Increases in these prices would result in an increase in the estimated fair value of the loans, while a decrease in these prices would result in a lower fair value measurement.

29

ITEM 1. Financial Statements and Supplementary Data

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Continued)

The tables below present the balances of assets and liabilities measured at fair value on a recurring basis:

	September 30, 2015
	Level 1		Level 2		Level 3		Total
	(dollars in thousands)
Obligations of U.S. Government Agencies:
Mortgage-Backed Securities - Residential	$	—	$	23,281	$	—	$	23,281
Obligations of U.S. Government-Sponsored Enterprises:
Mortgage-Backed Securities - Residential	—		824,152		—		824,152
Mortgage-Backed Securities - Commercial	—		38		—		38
Other Government-Sponsored Enterprises	—		135,781		—		135,781
Obligations of States and Political Subdivisions	—		27,449		—		27,449
Corporate Securities	—		2,333		—		2,333
Pooled Trust Preferred Collateralized Debt Obligations	—		—		35,779		35,779
Total Debt Securities	—		1,013,034		35,779		1,048,813
Equities	—		—		1,920		1,920
Total Securities Available for Sale	—		1,013,034		37,699		1,050,733
Other Investments	—		53,976		—		53,976
Loans held for sale	—		4,986		—		4,986
Other Assets(a)	—		16,303		—		16,303
Total Assets	$	—	$	1,088,299	$	37,699	$	1,125,998
Other Liabilities(a)	$	—	$	14,333	$	—	$	14,333
Total Liabilities	$	—	$	14,333	$	—	$	14,333

(a) Hedging and non-hedging interest rate derivatives

	December 31, 2014
	Level 1		Level 2		Level 3		Total
	(dollars in thousands)
Obligations of U.S. Government Agencies:
Mortgage-Backed Securities - Residential	$	—	$	25,936	$	—	$	25,936
Obligations of U.S. Government-Sponsored Enterprises:
Mortgage-Backed Securities - Residential	—		950,881		—		950,881
Mortgage-Backed Securities - Commercial	—		74		—		74
Other Government-Sponsored Enterprises	—		267,877		—		267,877
Obligations of States and Political Subdivisions	—		27,377		—		27,377
Corporate Securities	—		7,255		—		7,255
Pooled Trust Preferred Collateralized Debt Obligations	—		—		28,999		28,999
Total Debt Securities	—		1,279,400		28,999		1,308,399
Equities	—		—		1,420		1,420
Total Securities Available for Sale	—		1,279,400		30,419		1,309,819
Other Investments	—		44,545		—		44,545
Loans Held for Sale	—		2,502		—		2,502
Other Assets(a)	—		11,186		—		11,186
Total Assets	$	—	$	1,337,633	$	30,419	$	1,368,052
Other Liabilities(a)	$	—	$	10,671	$	—	$	10,671
Total Liabilities	$	—	$	10,671	$	—	$	10,671

(a) Hedging and non-hedging interest rate derivatives

30

ITEM 1. Financial Statements and Supplementary Data

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Continued)

For the nine months endedSeptember 30, changes in Level 3 assets and liabilities measured at fair value on a recurring basis are summarized as follows:

	2015
	Pooled Trust Preferred Collateralized Debt Obligations			Equities		Total
	(dollars in thousands)
Balance, beginning of period	$	28,999		$	1,420	$	30,419
Total gains or losses
Included in earnings	105			—		105
Included in other comprehensive income	7,729			—		7,729
Purchases, issuances, sales, and settlements
Purchases	—			500		500
Issuances	—			—		—
Sales	—			—		—
Settlements	(1,054		)	—		(1,054		)
Transfers into Level 3	—			—		—
Balance, end of period	$	35,779		$	1,920	$	37,699

	2014
	Pooled Trust Preferred Collateralized Debt Obligations			Equities		Loans Held for Sale			Total
	(dollars in thousands)
Balance, beginning of period	$	23,523		$	1,420	$	—		$	24,943
Total gains or losses
Included in earnings	—			—		77			77
Included in other comprehensive income	7,266			—		—			7,266
Purchases, issuances, sales, and settlements
Purchases	—			—		—			—
Issuances	—			—		—			—
Sales	—			—		(3,112		)	(3,112		)
Settlements	(1,333		)	—		—			(1,333		)
Transfers into Level 3	—			—		3,035			3,035
Balance, end of period	$	29,456		$	1,420	$	—		$	30,876

During the nine months endedSeptember 30, 2015 and 2014, there were no transfers between fair value Levels 1 and 2. During the nine months endedSeptember 30, 2015, there were no transfers between fair value Levels 2 and 3. However, $3.0 million of loans were transferred into Level 3 from Level 2 during the nine months endedSeptember 30, 2014 due to the loans being transferred to a held for sale status. The loans transferred and subsequently sold related to three nonperforming loan relationships for which this was determined to be the appropriate exit strategy. There were no gains or losses included in earnings for the periods presented that are attributable to the change in realized gains (losses) relating to assets held at September 30, 2015 and 2014.

31

ITEM 1. Financial Statements and Supplementary Data

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Continued)

For the three months endedSeptember 30, changes in Level 3 assets and liabilities measured at fair value on a recurring basis are summarized as follows:

	2015
	Pooled Trust Preferred Collateralized Debt Obligations		Equities		Total
	(dollars in thousands)
Balance, beginning of period	$	35,521	$	1,920	$	37,441
Total gains or losses
Included in earnings	—		—		—
Included in other comprehensive income	258		—		258
Purchases, issuances, sales, and settlements
Purchases	—		—		—
Issuances	—		—		—
Sales	—		—		—
Settlements	—		—		—
Transfers into Level 3	—		—		—
Balance, end of period	$	35,779	$	1,920	$	37,699

	2014
	Pooled Trust Preferred Collateralized Debt Obligations			Equities		Loans Held for Sale		Total
	(dollars in thousands)
Balance, beginning of period	$	28,154		$	1,420	$	—	29,574
Total gains or losses
Included in earnings	—			—		—		—
Included in other comprehensive income	1,470			—		—		1,470
Purchases, issuances, sales, and settlements
Purchases	—			—		—		—
Issuances	—			—		—		—
Sales	—			—		—		—
Settlements	(168		)	—		—		(168		)
Transfers into Level 3	—			—		—		—
Balance, end of period	$	29,456		$	1,420	$	—	$	30,876

During the three months endedSeptember 30, 2015 and 2014, there were no transfers between fair value Levels 1 and 2.

The tables below present the balances of assets measured at fair value on a non-recurring basis at:

	September 30, 2015
	Level 1		Level 2		Level 3		Total
	(dollars in thousands)
Impaired loans	$	—	$	26,916	$	9,656	$	36,572
Other real estate owned	—		12,386		8		12,394
Total Assets	$	—	$	39,302	$	9,664	$	48,966

32

ITEM 1. Financial Statements and Supplementary Data

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Continued)

	December 31, 2014
	Level 1		Level 2		Level 3		Total
	(dollars in thousands)
Impaired loans	$	—	$	34,864	$	10,926	$	45,790
Other real estate owned	—		7,828		153		7,981
Total Assets	$	—	$	42,692	$	11,079	$	53,771

The following losses were realized on the assets measured on a nonrecurring basis:

	For the Three Months Ended September 30,						For the Nine Months Ended September 30,
	2015			2014			2015			2014
	(dollars in thousands)
Impaired loans	$	(2,838	)	$	456		$	(3,532	)	$	(1,291	)
Other real estate owned	(78		)	(51		)	(1,205		)	(1,109		)
Total losses	$	(2,916	)	$	405		$	(4,737	)	$	(2,400	)

Impaired loans over $100 thousand are individually reviewed to determine the amount of each loan considered to be at risk of non-collection. The fair value for impaired loans that are collateral based is determined by reviewing real property appraisals, equipment valuations, accounts receivable listings and other financial information. A discounted cash flow analysis is performed to determine fair value for impaired loans when an observable market price or a current appraisal is not available. For real estate secured loans, First Commonwealth’s loan policy requires updated appraisals be obtained at least every twelve months on all impaired loans with balances of $250 thousand and over. For real estate secured loans with balances under $250 thousand, we rely on broker price opinions. For non-real estate secured assets, the Company normally relies on third party valuations specific to the collateral type.

The fair value for other real estate owned determined by either an independent market-based appraisal less estimated costs to sell or an executed sales agreement is classified as Level 2. The fair value for other real estate owned determined using an internal valuation is classified as Level 3. Other real estate owned has a book cost of $10.5 million as of September 30, 2015 and consisted primarily of commercial real estate properties in Pennsylvania. We review whether events and circumstances subsequent to a transfer to other real estate owned have occurred that indicate the balance of those assets may not be recoverable. If events and circumstances indicate further impairment we will record a charge to the extent that the carrying value of the assets exceed their fair values, less estimated cost to sell, as determined by valuation techniques appropriate in the circumstances.

Certain other assets and liabilities, including goodwill and core deposit intangibles, are measured at fair value on a non-recurring basis; that is, the instruments are not measured at fair value on an ongoing basis but are subject to fair value adjustments only in certain circumstances. Additional information related to goodwill is provided in Note 12, “Goodwill.” There were no other assets or liabilities measured at fair value on a non-recurring basis during the nine months endedSeptember 30, 2015.

FASB ASC 825-10, “Transition Related to FSP FAS 107-1” and APB 28-1, “Interim Disclosures about Fair Value of Financial Instruments,” requires disclosure of the fair value of financial assets and financial liabilities, including those financial assets and financial liabilities that are not measured and reported at fair value on a recurring basis or non-recurring basis. The methodologies for estimating the fair value of financial assets and financial liabilities that are measured at fair value on a recurring or non-recurring basis are as discussed above. The methodologies for other financial assets and financial liabilities are discussed below.

Cash and due from banks and interest-bearing bank deposits: The carrying amounts for cash and due from banks and interest-bearing bank deposits approximate the estimated fair values of such assets.

Securities: Fair values for securities available for sale and held to maturity are based on quoted market prices, if available. If quoted market prices are not available, fair values are based on quoted market prices of comparable instruments. Pooled trust preferred collateralized debt obligations values are derived from other valuation methodologies, including option pricing models, discounted cash flow models and similar techniques, and not based on market exchange, dealer or broker traded transactions. These valuations incorporate certain assumptions and projections in determining the fair value assigned to each

33

ITEM 1. Financial Statements and Supplementary Data

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Continued)

instrument. The carrying value of other investments, which includes FHLB stock, is considered a reasonable estimate of fair value.

Loans: The fair values of all loans are estimated by discounting the estimated future cash flows using interest rates currently offered for loans with similar terms to borrowers of similar credit quality adjusted for past due and nonperforming loans, which is not an exit price under FASB ASC Topic 820, “Fair Value Measurements and Disclosures.”

Loans Held for Sale: The estimated fair value of loans held for sale is based on market bids obtained from potential buyers.

Off-balance sheet instruments: Many of First Commonwealth’s off-balance sheet instruments, primarily loan commitments and standby letters of credit, are expected to expire without being drawn upon; therefore, the commitment amounts do not necessarily represent future cash requirements. FASB ASC Topic 460, “Guarantees” clarified that a guarantor is required to recognize, at the inception of a guarantee, a liability for the fair value of the obligation undertaken in issuing the guarantee. The carrying amount and fair value for standby letters of credit was $0.2 million at September 30, 2015 and December 31, 2014, respectively. See Note 5, “Commitments and Contingent Liabilities,” for additional information.

Deposit liabilities: The estimated fair value of demand deposits, savings accounts and money market deposits is the amount payable on demand at the reporting date because of the customers’ ability to withdraw funds immediately. The carrying value of variable rate time deposit accounts and certificates of deposit approximate their fair values at the report date. Also, fair values of fixed rate time deposits for both periods are estimated by discounting the future cash flows using interest rates currently being offered and a schedule of aggregated expected maturities.

Short-term borrowings: The fair values of borrowings from the FHLB were estimated based on the estimated incremental borrowing rate for similar types of borrowings. The carrying amounts of other short-term borrowings such as federal funds purchased and securities sold under agreement to repurchase were used to approximate fair value due to the short-term nature of the borrowings.

Long-term debt and subordinated debt: The fair value of long-term debt and subordinated debt is estimated by discounting the future cash flows using First Commonwealth’s estimate of the current market rate for similar types of borrowing arrangements or an announced redemption price.

The following table presents carrying amounts and fair values of First Commonwealth’s financial instruments:

	September 30, 2015
			Fair Value Measurements Using:
	Carrying Amount		Total		Level 1		Level 2		Level 3
	(dollars in thousands)
Financial assets
Cash and due from banks	$	69,235	$	69,235	$	69,235	$	—	$	—
Interest-bearing deposits	3,529		3,529		3,529		—		—
Securities available for sale	1,050,733		1,050,733		—		1,013,034		37,699
Securities held to maturity	154,035		154,837		—		154,837		—
Other investments	53,976		53,976		—		53,976		—
Loans held for sale	4,986		4,986		—		4,986		—
Loans	4,575,735		4,596,889		—		26,916		4,569,973
Financial liabilities
Deposits	4,161,490		4,164,660		—		4,164,660		—
Short-term borrowings	1,329,794		1,329,920		—		1,329,920		—
Subordinated debt	72,167		62,227		—		—		62,227
Long-term debt	39,052		39,704		—		39,704		—

34

ITEM 1. Financial Statements and Supplementary Data

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Continued)

	December 31, 2014
			Fair Value Measurements Using:
	Carrying Amount		Total		Level 1		Level 2		Level 3
	(dollars in thousands)
Financial assets
Cash and due from banks	$	72,276	$	72,276	$	72,276	$	—	$	—
Interest-bearing deposits	2,262		2,262		2,262		—		—
Securities available for sale	1,309,819		1,309,819		—		1,279,400		30,419
Other investments	44,545		44,545		—		44,545		—
Loans held for sale	2,502		2,502		—		2,502		—
Loans	4,457,308		4,439,766		—		34,864		4,404,902
Financial liabilities
Deposits	4,315,511		4,319,997		—		4,319,997		—
Short-term borrowings	1,105,876		1,105,867		—		1,105,867		—
Subordinated debt	72,167		62,815		—		—		62,815
Long-term debt	89,459		90,319		—		90,319		—

Note 11 Derivatives

Derivatives Not Designated as Hedging Instruments

First Commonwealth is a party to interest rate derivatives that are not designated as hedging instruments. These derivatives relate to interest rate swaps that First Commonwealth enters into with customers to allow customers to convert variable rate loans to a fixed rate. First Commonwealth pays interest to the customer at a floating rate on the notional amount and receives interest from the customer at a fixed rate for the same notional amount. At the same time the interest rate swap is entered into with the customer, an offsetting interest rate swap is entered into with another financial institution. First Commonwealth pays the other financial institution interest at the same fixed rate on the same notional amount as the swap entered into with the customer, and receives interest from the financial institution for the same floating rate on the same notional amount.

The changes in the fair value of the swaps offset each other, except for the credit risk of the counterparties, which is determined by taking into consideration the risk rating, probability of default and loss given default for all counterparties.

We have fifteen risk participation agreements with financial institution counterparties for interest rate swaps related to loans in which we are a participant. The risk participation agreements provide credit protection to the financial institution should the borrower fail to perform on its interest rate derivative contract with the financial institution. We have three risk participation agreements with financial institution counterparties for interest rate swaps related to loans in which we are the lead bank. The risk participation agreement provides credit protection to us should the borrower fail to perform on its interest rate derivative contract with us.

First Commonwealth is also party to interest rate caps that are not designated as hedging instruments. These derivatives relate to contracts that First Commonwealth enters into with loan customers that provide a maximum interest rate on their variable rate loan. At the same time the interest rate cap is entered into with the customer, First Commonwealth enters into an offsetting interest rate cap with another financial institution. The notional amount and maximum interest rate on both interest cap contracts are identical.

The fee received, less the estimate of the loss for the credit exposure, was recognized in earnings at the time of the transaction.

Derivatives Designated as Hedging Instruments

The Company has entered into four interest rate swap contracts that were designated as cash flow hedges. The interest rate swaps have a total notional amount of $200.0 million, $85.0 million with an original maturity of three years and $115.0 million with and original maturity of four years. The Company's risk management objective for these hedges is to reduce its exposure to variability in expected future cash flows related to interest payments on commercial loans benchmarked to the 1-month LIBOR rate. Therefore, the interest rate swaps convert the interest payments on the first $200.0 million of 1-month LIBOR based commercial loans into fixed rate payments.

35

ITEM 1. Financial Statements and Supplementary Data

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Continued)

The periodic net settlement of interest rate swaps is recorded as an adjustment to Interest and fees on loans in the Condensed Consolidated Statements of Income. For the nine months endedSeptember 30, 2015, there was a $1.5 million impact on interest income as a result of these interest rate swaps. Changes in the fair value of the effective portion of cash flow hedges are reported in OCI. When the cash flows associated with the hedged item are realized, the gain or loss included in OCI is recognized in "Interest and fees on loans," the same line item in the Condensed Consolidated Statements of Income as the income on the hedged items. The cash flow hedges were highly effective at September 30, 2015, and December 31, 2014, and changes in the fair value attributed to hedge ineffectiveness were not material.

The following table depicts the credit value adjustment recorded related to the notional amount of derivatives outstanding as well as the notional amount of risk participation agreements participated to other banks:

	September 30, 2015			December 31, 2014
	(dollars in thousands)
Derivatives not Designated as Hedging Instruments
Credit value adjustment	$	(688	)	$	(268	)
Notional Amount:
Interest rate derivatives	271,371			273,388
Interest rate caps	23,447			6,656
Risk participation agreements	124,116			113,624
Sold credit protection on risk participation agreements	(17,635		)	(17,296		)
Derivatives Designated as Hedging Instruments
Fair value adjustment	2,644			472
Notional Amount - Interest rate derivatives	200,000			100,000

The table below presents the amount representing the change in the fair value of derivative assets and derivative liabilities attributable to credit risk included in Other income on the Condensed Consolidated Statements of Income:

	For the Three Months Ended September 30,						For the Nine Months Ended September 30,
	2015			2014			2015			2014
	(dollars in thousands)
Non-hedging interest rate derivatives
(Decrease) increase in other income	$	(783	)	$	(108	)	$	(420	)	$	175
Hedging interest rate derivatives
Increase in interest and fees on loans	565			29			1,503			29
Increase in other expense	—			—			21			—

Note 12 Goodwill

FASB ASC Topic 350-20, “Intangibles – Goodwill and Other” requires an annual valuation of the fair value of a reporting unit that has goodwill and a comparison of the fair value to the book value of equity to determine whether the goodwill has been impaired. Goodwill is also required to be tested on an interim basis if an event or circumstance indicates that it is more likely than not that an impairment loss has been incurred. When triggering events or circumstances indicate that goodwill testing is required, an assessment of qualitative factors can be completed before performing the two step goodwill impairment test. ASU 2011-8 provides that if an assessment of qualitative factors determines it is more likely than not that the fair value of a reporting unit exceeds its carrying amount, then the two step goodwill impairment test is not required.

We consider First Commonwealth to be one reporting unit. The carrying amount of goodwill as of September 30, 2015 and December 31, 2014 was $161.4 million. No impairment charges on goodwill or other intangible assets were incurred in 2015 or 2014.

We test goodwill for impairment as of November 30th each year and again at any quarter-end if any material events occur during a quarter that may affect goodwill.

As of September 30, 2015, goodwill was not considered impaired; however, changing economic conditions that may adversely affect our performance, the fair value of our assets and liabilities, or our stock price could result in impairment, which could

36

ITEM 1. Financial Statements and Supplementary Data

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Continued)

adversely affect earnings in future periods. Management will continue to monitor events that could impact this conclusion in the future.

Note 13 Subsequent Events

On October 1, 2015, First Commonwealth Bank, the banking subsidiary of First Commonwealth Financial Corporation, completed its acquisition of Columbus, Ohio based First Community Bank in an all-cash deal valued at $14.8 million. First Community Bank has assets of $102.8 million and four branch locations which will operate under the First Commonwealth name.

Note 14 New Accounting Pronouncements

In January 2015, the FASB issued ASU No. 2015-01, "Income Statement - Extraordinary and Unusual Items (Subtopic 225-20)," which finalizes Proposed ASU No. 2014-220, and eliminates the concept of extraordinary items from U.S. GAAP. Accordingly, this ASU eliminates FASB ASC Subtopic 225-20, "Income Statement - Extraordinary and Unusual Items", which, until now, required that an entity separately classify, present, and disclose extraordinary events and transactions. This ASU is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2015. The adoption of this ASU is not expected to have a material impact on First Commonwealth’s financial condition or results of operations.

In September 2015, the FASB issued ASU No. 2015-16, "Business Combinations (Topic 805)," requires that the acquirer recognize adjustments to provisional amounts identified during the measurement period in the reporting period in which the adjustment amounts are determined. The adjustments are required to be presented separately on the face of the income statement or disclosed in the notes to show the portion of current-period earnings by line item that would have been recorded in previous reporting periods if the adjustments to the provisional amounts had been recognized as of the acquisition date. This ASU is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2015. The adoption of this ASU is not expected to have a material impact on First Commonwealth’s financial condition or results of operations.

37

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

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

This discussion and the related financial data are presented to assist in the understanding and evaluation of the consolidated financial condition and the results of operations of First Commonwealth Financial Corporation including its subsidiaries (“First Commonwealth”) for the nine months endedSeptember 30, 2015 and 2014, and should be read in conjunction with the Condensed Consolidated Financial Statements and notes thereto included in this Form 10-Q.

Forward-Looking Statements

Certain statements contained in this report that are not historical facts may constitute “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and are intended to be covered by the safe harbor provisions of the Private Securities Litigation Reform Act of 1995, notwithstanding that such statements are not specifically identified as such. In addition, certain statements may be contained in our future filings with the Securities and Exchange Commission, in press releases, and in oral and written statements made by us or with our approval that are not statements of historical fact and constitute “forward-looking statements” as well. These statements, which are based on certain assumptions and describe our future plans, strategies and expectations, can generally be identified by the use of words such as “may,” “will,” “should,” “could,” “would,” “plan,” “believe,” “expect,” “anticipate,” “intend,” “estimate” or words of similar meaning. These forward-looking statements are subject to significant risks, assumptions and uncertainties, and could be affected by many factors, including, but not limited to: (1) local, regional, national and international economic conditions and the impact they may have on First Commonwealth and its customers; (2) volatility and disruption in national and international financial markets; (3) the effects of and changes in trade and monetary and fiscal policies and laws, including the interest rate policies of the Federal Reserve Board; (4) inflation, interest rate, commodity price, securities market and monetary fluctuations; (5) the effect of changes in laws and regulations (including laws and regulations concerning taxes, banking, securities and insurance) with which First Commonwealth or its customers must comply; (6) the soundness of other financial institutions; (7) political instability; (8) impairment of First Commonwealth’s goodwill or other intangible assets; (9) acts of God or of war or terrorism; (10) the timely development and acceptance of new products and services and perceived overall value of these products and services by users; (11) changes in consumer spending, borrowings and savings habits; (12) changes in the financial performance and/or condition of First Commonwealth’s borrowers; (13) technological changes; (14) acquisitions and integration of acquired businesses; (15) First Commonwealth’s ability to attract and retain qualified employees; (16) changes in the competitive environment in First Commonwealth’s markets and among banking organizations and other financial service providers; (17) the ability to increase market share and control expenses; (18) the effect of changes in accounting policies and practices, as may be adopted by the regulatory agencies, as well as the Public Company Accounting Oversight Board, the Financial Accounting Standards Board and other accounting standard setters; (19) the reliability of First Commonwealth’s vendors, internal control systems or information systems; (20) the costs and effects of legal and regulatory developments, the resolution of legal proceedings or regulatory or other governmental inquiries, the results of regulatory examinations or reviews and the ability to obtain required regulatory approvals; and (21) other risks and uncertainties described in this report and in the other reports that we file with the Securities and Exchange Commission, including our most recent Annual Report on Form 10-K.

In light of these risks, uncertainties and assumptions, you should not place undue reliance on any forward-looking statements in this report. We undertake no obligation to publicly update or otherwise revise any forward-looking statements, whether as a result of new information, future events or otherwise.

Explanation of Use of Non-GAAP Financial Measure

In addition to the results of operations presented in accordance with generally accepted accounting principles (“GAAP”), First Commonwealth management uses, and this quarterly report contains or references, certain non-GAAP financial measures, such as net interest income on a fully taxable equivalent basis. We believe this non-GAAP financial measure provides information useful to investors in understanding our underlying operational performance and our business and performance trends as it facilitates comparison with the performance of others in the financial services industry. Although we believe that this non-GAAP financial measure enhances investors’ understanding of our business and performance, this non-GAAP financial measure should not be considered an alternative to GAAP.

We believe the presentation of net interest income on a fully taxable equivalent basis ensures comparability of net interest income arising from both taxable and tax-exempt sources and is consistent with industry practice. Interest income per the Condensed Consolidated Statements of Income is reconciled to net interest income adjusted to a fully taxable equivalent basis on pages 40 and 47 for the nine and three months endedSeptember 30, 2015 and 2014, respectively.

38

ITEM 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations (Continued)

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

Selected Financial Data

The following selected financial data is not covered by the auditor’s report and should be read in conjunction with Management’s Discussion and Analysis of Financial Condition and Results of Operations, which follows, and with the Condensed Consolidated Financial Statements and related notes.

	For the Three Months Ended September 30,						For the Nine Months Ended September 30,
	2015			2014			2015			2014
	(dollars in thousands, except per share data)
Net Income	$	12,414		$	12,496		$	40,082		$	36,724
Per Share Data:
Basic Earnings per Share	$	0.14		$	0.13		$	0.45		$	0.39
Diluted Earnings per Share	0.14			0.13			0.45			0.39
Cash Dividends Declared per Common Share	0.07			0.07			0.21			0.21
Average Balance:
Total assets	$	6,343,009		$	6,325,068		$	6,354,128		$	6,260,109
Total equity	718,178			717,859			716,200			719,002
End of Period Balance:
Net loans							$	4,532,203		$	4,360,697
Total assets							6,384,749			6,356,098
Total deposits							4,161,490			4,372,388
Total equity							722,768			709,484
Key Ratios:
Return on average assets	0.78		%	0.78		%	0.84		%	0.78		%
Return on average equity	6.86		%	6.91		%	7.48		%	6.83		%
Dividends payout ratio	50.00		%	53.85		%	46.67		%	53.85		%
Average equity to average assets ratio	11.32		%	11.35		%	11.27		%	11.49		%
Net interest margin	3.25		%	3.26		%	3.29		%	3.28		%
Net loans to deposits ratio							108.91		%	99.73		%

Results of Operations

Nine Months EndedSeptember 30, 2015 Compared to Nine Months EndedSeptember 30, 2014

Net Income

For the nine months endedSeptember 30, 2015, First Commonwealth had net income of $40.1 million, or $0.45 diluted earnings per share, compared to net income of $36.7 million, or $0.39 diluted earnings per share, in the nine months endedSeptember 30, 2014. The increase in net income was primarily the result of an increase in net interest income and declines in noninterest expense, partially offset by declines in noninterest income.

For the nine months endedSeptember 30, 2015, the Company’s return on average equity was 7.48% and its return on average assets was 0.84%, compared to 6.83% and 0.78%, respectively, for the nine months endedSeptember 30, 2014.

Net Interest Income

Net interest income, on a fully taxable equivalent basis, was $142.8 million in the first nine months of 2015, compared to $140.0 million for the same period in 2014. This increase was primarily due to growth in earning assets of $105.9 million, an 8 basis point, or $2.7 million, decrease in interest expense and a $1.0 million special dividend on FHLB stock received in 2015. Net interest income comprises a majority of our operating revenue (net interest income before provision expense plus noninterest income) at 75% for the nine months endedSeptember 30, 2015 and 2014. The net interest margin, on a fully taxable equivalent basis, was 3.29% and 3.28% for the nine months endedSeptember 30, 2015 and September 30, 2014, respectively.

39

ITEM 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations (Continued)

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

The taxable equivalent yield on interest-earning assets was 3.55% for the nine months endedSeptember 30, 2015, a decrease of 7 basis points compared to the 3.62% yield for the same period in 2014. Growth in earning assets has helped to offset the spread compression, as average earning assets for the nine months endedSeptember 30, 2015 increased $105.9 million, or 2%, compared to the same period in 2014. Average loans for the nine months endedSeptember 30, 2015 increased $177.8 million, or 4.1% compared to the same period in 2014. Investment portfolio purchases during the nine months endedSeptember 30, 2015 have been primarily in mortgage-related assets with approximate durations of 48-60 months and municipal securities with a duration of five years. The mortgage-related investments have monthly principal payments that will provide for reinvestment opportunities as interest rates rise.

Reductions in the cost of interest-bearing liabilities offset the impact of lower yields on interest-earning assets. The cost of interest-bearing liabilities was 0.34% for the nine months endedSeptember 30, 2015, compared to 0.42% for the same period in 2014. This decline is primarily due to a 30 basis point decrease in the cost of time deposits as maturities repriced to lower rates or were replaced with lower cost short-term borrowings.

For the nine months endedSeptember 30, 2015, changes in interest rates negatively impacted net interest income by $4.5 million when compared with the same period in 2014. The lower yield on interest-earning assets adversely impacted net interest income by $4.5 million, while the decline in the cost of interest-bearing liabilities had a positive impact of $25 thousand. We have been able to partially mitigate the impact of lower interest rates and the effect on net interest income through improving the mix of deposits and borrowed funds, growing the loan portfolio and increasing our investment volumes within established interest rate risk management guidelines.

While decreases in interest rates and yields compressed the net interest margin, increases in average interest-earning assets offset the effect on net interest income. Changes in the volumes of interest-earning assets and interest-bearing liabilities positively impacted net interest income by $7.2 million in the nine months endedSeptember 30, 2015, as compared to the same period in 2014. Higher levels of interest-earning assets resulted in an increase of $4.5 million in interest income, while volume changes decreased interest expense by $2.8 million, primarily as the result of changes in time deposits, including brokered deposits.

Net interest income also benefited from a $96.2 million increase in average net free funds at September 30, 2015 as compared to September 30, 2014. Average net free funds are the excess of noninterest-bearing demand deposits, other noninterest-bearing liabilities and shareholders’ equity over noninterest-earning assets. The largest component of the increase in net free funds was an increase of $84.1 million, or 8.8%, in noninterest-bearing demand deposit average balances. Additionally, higher cost time deposits continue to mature and reprice into lower cost deposits or other funding alternatives. Average time deposits for the nine months endedSeptember 30, 2015 decreased by $351.5 million compared to the comparable period in 2014.

The following table reconciles interest income in the Condensed Consolidated Statements of Income to net interest income adjusted to a fully taxable equivalent basis for the nine months endedSeptember 30:

	2015		2014
	(dollars in thousands)
Interest income per Condensed Consolidated Statements of Income	$	151,736	$	151,761
Adjustment to fully taxable equivalent basis	2,536		2,502
Interest income adjusted to fully taxable equivalent basis (non-GAAP)	154,272		154,263
Interest expense	11,509		14,234
Net interest income adjusted to fully taxable equivalent basis (non-GAAP)	$	142,763	$	140,029

40

ITEM 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations (Continued)

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

The following is an analysis of the average balance sheets and net interest income on a fully taxable equivalent basis for the nine months endedSeptember 30:

	2015							2014
	Average Balance			Income / Expense (a)		Yield or Rate		Average Balance			Income / Expense (a)		Yield or Rate
	(dollars in thousands)
Assets
Interest-earning assets:
Interest-bearing deposits with banks	$	3,993		$	7	0.23	%	$	4,113		$	8	0.26	%
Tax-free investment securities	34,374			994		3.87		8,998			265		3.94
Taxable investment securities	1,260,030			22,749		2.41		1,357,220			23,091		2.27
Loans, net of unearned income (b)(c)	4,509,628			130,522		3.87		4,331,807			130,899		4.04
Total interest-earning assets	5,808,025			154,272		3.55		5,702,138			154,263		3.62
Noninterest-earning assets:
Cash	66,249							71,589
Allowance for credit losses	(49,617		)					(54,986		)
Other assets	529,471							541,368
Total noninterest-earning assets	546,103							557,971
Total Assets	$	6,354,128						$	6,260,109
Liabilities and Shareholders’ Equity
Interest-bearing liabilities:
Interest-bearing demand deposits (d)	$	653,737		$	172	0.04	%	$	636,551		$	150	0.03	%
Savings deposits (d)	1,857,077			1,872		0.13		1,875,064			1,745		0.12
Time deposits	714,005			3,743		0.70		1,065,458			8,002		1.00
Short-term borrowings	1,193,122			3,353		0.38		749,269			1,608		0.29
Long-term debt	126,896			2,369		2.50		208,818			2,729		1.75
Total interest-bearing liabilities	4,544,837			11,509		0.34		4,535,160			14,234		0.42
Noninterest-bearing liabilities and shareholders’ equity:
Noninterest-bearing demand deposits (d)	1,038,016							953,946
Other liabilities	55,075							52,001
Shareholders’ equity	716,200							719,002
Total Noninterest-Bearing Funding Sources	1,809,291							1,724,949
Total Liabilities and Shareholders’ Equity	$	6,354,128						$	6,260,109
Net Interest Income and Net Yield on Interest-Earning Assets				$	142,763	3.29	%				$	140,029	3.28	%

(a) Income on interest-earning assets has been computed on a fully taxable equivalent basis using the 35% federal income tax statutory rate.

(b) Loan balances include held for sale and nonaccrual loans. Income on nonaccrual loans is accounted for on the cash basis.

(c) Loan income includes loan fees earned.

(d) Average balances do not include reallocations from noninterest-bearing demand deposits and interest-bearing demand deposits into savings deposits, which were made for regulatory purposes.

41

ITEM 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations (Continued)

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

The following table shows the effect of changes in volumes and rates on interest income and interest expense for the nine months endedSeptember 30, 2015 compared with September 30, 2014:

	Analysis of Year-to-Year Changes in Net Interest Income
	Total Change			Change Due To Volume			Change Due To Rate (a)
	(dollars in thousands)
Interest-earning assets:
Interest-bearing deposits with banks	$	(1	)	$	—		$	(1	)
Tax-free investment securities	729			748			(19		)
Taxable investment securities	(342		)	(1,650		)	1,308
Loans	(377		)	5,373			(5,750		)
Total interest income (b)	9			4,471			(4,462		)
Interest-bearing liabilities:
Interest-bearing demand deposits	22			4			18
Savings deposits	127			(16		)	143
Time deposits	(4,259		)	(2,629		)	(1,630		)
Short-term borrowings	1,745			963			782
Long-term debt	(360		)	(1,072		)	712
Total interest expense	(2,725		)	(2,750		)	25
Net interest income	$	2,734		$	7,221		$	(4,487	)

(a) Changes in interest income or expense not arising solely as a result of volume or rate variances are allocated to rate variances.

(b) Changes in interest income have been computed on a fully taxable equivalent basis using the 35% federal income tax statutory rate.

Provision for Credit Losses

The provision for credit losses is determined based on management’s estimates of the appropriate level of the allowance for credit losses needed for probable losses inherent in the loan portfolio, after giving consideration to charge-offs and recoveries for the period. The provision for credit losses is an amount added to the allowance, against which credit losses are charged.

The table below provides a breakout of the provision for credit losses by loan category for the nine months endedSeptember 30:

	2015					2014
	Dollars			Percentage		Dollars			Percentage
	(dollars in thousands)
Commercial, financial, agricultural and other	$	5,230		59	%	$	4,773		55	%
Real estate construction	(554		)	(6	)	1,331			16
Residential real estate	(54		)	(1	)	(407		)	(5	)
Commercial real estate	1,584			18		1,453			17
Loans to individuals	2,612			30		1,471			17
Total	$	8,818		100	%	$	8,621		100	%

The provision for credit losses for the nine months endedSeptember 30, 2015increased in comparison to the nine months endedSeptember 30, 2014 by $0.2 million, or 2%. The majority of the 2015 provision expense is attributable to commercial, financial, agricultural and other loans resulting from an increase in historical loss factors as well as specific reserves established for three loans, partially offset by the release of $1.1 million in specific reserves for loans transferred to held for sale in the first quarter of 2015. These held for sale loans were sold during the third quarter quarter of 2015, at which time a gain of $0.4 million was recognized. Provision expense for commercial real estate loans was impacted by charge-offs and increases in qualitative factors including those associated with vacancy and rents. The provision for loans to individuals is primarily due to charge-offs in the indirect automobile portfolio. Real estate construction and residential real estate reflect a negative provision expense due to a decline in historical loss factors for these categories.

42

ITEM 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations (Continued)

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

The majority of the 2014 provision expense is attributable to specific reserves for one oil and gas servicing company which was transferred to nonaccrual status in the first quarter of 2014 and sold during the second quarter of 2014.

The allowance for credit losses was $48.5 million, or 1.06%, of total loans outstanding at September 30, 2015, compared to $52.1 million, or 1.17%, at December 31, 2014 and $50.8 million, or 1.15%, at September 30, 2014. The change compared to December 31, 2014, can be attributed to a $3.2 million, or 2%, decrease in criticized loans, which includes a reduction of $14.4 million, or 26%, in nonperforming loans as well as a $5.2 million decrease in the level of specific reserves held on impaired loans. Nonperforming loans as a percentage of total loans decreased to 0.89% at September 30, 2015 from 1.24% at December 31, 2014 and 1.03% as of September 30, 2014. The allowance to nonperforming loan ratio was 118.84%, 94.21% and 112.21% as of September 30, 2015, December 31, 2014 and September 30, 2014, respectively.

Below is an analysis of the consolidated allowance for credit losses for the nine months endedSeptember 30, 2015 and 2014 and the year-ended December 31, 2014:

	September 30, 2015		September 30, 2014		December 31, 2014
	(dollars in thousands)
Balance, beginning of period	$	52,051	$	54,225	$	54,225
Loans charged off:
Commercial, financial, agricultural and other	8,579		8,357		8,911
Real estate construction	—		296		296
Residential real estate	1,351		2,286		3,153
Commercial real estate	1,249		1,109		1,148
Loans to individuals	3,283		2,581		3,964
Total loans charged off	14,462		14,629		17,472
Recoveries of loans previously charged off:
Commercial, financial, agricultural and other	922		625		734
Real estate construction	84		469		1,340
Residential real estate	417		420		650
Commercial real estate	186		432		612
Loans to individuals	502		621		766
Total recoveries	2,111		2,567		4,102
Net credit losses	12,351		12,062		13,370
Provision charged to expense	8,818		8,621		11,196
Balance, end of period	$	48,518	$	50,784	$	52,051

43

ITEM 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations (Continued)

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

Noninterest Income

The following table presents the components of noninterest income for the nine months endedSeptember 30:

	2015			2014		$ Change			% Change
	(dollars in thousands)
Noninterest Income:
Trust income	$	4,511		$	4,587	$	(76	)	(2	)%
Service charges on deposit accounts	11,271			12,032		(761		)	(6	)
Insurance and retail brokerage commissions	6,536			4,704		1,832			39
Income from bank owned life insurance	4,089			4,131		(42		)	(1	)
Card related interchange income	10,784			10,620		164			2
Other income	5,863			6,185		(322		)	(5	)
Subtotal	43,054			42,259		795			2
Net securities gains	125			50		75			150
Gain on sale of loans	2,262			143		2,119			1,482
Gain on sale of other assets	1,022			4,345		(3,323		)	(76	)
Derivatives mark to market (expense) income	(420		)	175		(595		)	(340	)
Total noninterest income	$	46,043		$	46,972	$	(929	)	(2	)%

Noninterest income, excluding net securities gains, gain on sale of loans and other assets and the derivative mark to market, increased$0.8 million, or 2%, for the first nine months of 2015 compared to 2014. Insurance and retail brokerage commissions increased $1.8 million as a result of increased production and an agency acquisition in the fourth quarter of 2014. Offsetting that increase is a $0.8 million decrease in service charges on deposit accounts and a $0.3 milliondecrease in the other income category. The decrease in service charge on deposits is a result of lower overdraft fees, and the decline in other income can be attributed to $0.3 million in revenue recognized in 2014 from our registered investment advisory business, which was sold in the first quarter of 2014.

Total noninterest income for the nine months endedSeptember 30, 2015decreased$0.9 million in comparison to the nine months endedSeptember 30, 2014. The most significant change includes a $3.3 milliondecrease in gain on sale of other assets as a result of a $1.2 million gain recognized in 2014 from the sale of the Company's registered investment advisory business and the sale of three OREO properties that resulted in gains of $2.4 million. Additionally, the quarterly fair value adjustment on derivatives resulted in a $0.6 million decrease in income as a result of changes in corporate bond spreads and swap rates during the nine month period. Offsetting these decreases is a $2.1 million increase in the gain on sale of loans primarily due to the Company reentering the secondary mortgage market.

44

ITEM 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations (Continued)

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

Noninterest Expense

The following table presents the components of noninterest expense for the nine months endedSeptember 30:

	2015		2014			$ Change			% Change
	(dollars in thousands)
Noninterest Expense:
Salaries and employee benefits	$	66,339	$	65,185		$	1,154		2	%
Net occupancy expense	10,518		9,969			549			6
Furniture and equipment expense - excluding IT conversion	7,980		9,473			(1,493		)	(16	)
Data processing expense	4,505		4,593			(88		)	(2	)
Advertising and promotion expense	1,946		2,346			(400		)	(17	)
Pennsylvania shares tax expense	3,617		2,782			835			30
Intangible amortization	469		530			(61		)	(12	)
Collection and repossession expense	2,229		1,941			288			15
Other professional fees and services	2,882		2,777			105			4
FDIC insurance	3,047		3,026			21			1
Other operating expenses	13,539		13,008			531			4
Subtotal	117,071		115,630			1,441			1
Loss on sale or write-down of assets	2,037		1,241			796			64
Furniture and equipment expense - related to IT conversion	—		5,577			(5,577		)	(100	)%
Conversion related expenses	—		1,676			(1,676		)	(100	)%
Operational losses (recoveries)	1,637		(273		)	1,910			700	%
Total noninterest expense	$	120,745	$	123,851		$	(3,106	)	(3	)%

Noninterest expense, excluding loss on sale or write-down of assets, furniture and equipment expense related to IT conversion, conversion related expenses and operational losses (recoveries), increased$1.4 million, or 1%, for the nine months endedSeptember 30, 2015 compared to the same period in 2014. Contributing to the 2015 increases are $1.2 million in salary and employee benefits expense due to strategic initiatives such as the launch of the mortgage initiative and the acquisition of an insurance agency as well as normal merit increases. Net occupancy increased $0.5 million due to higher property taxes and building repairs, and collection and repossession expense increased $0.3 million primarily due to costs related to one commercial relationship.

Pennsylvania shares tax expense increased $0.8 million as the result of a $0.7 million agreement reached for a disputed tax assessment. The dispute related to the capital treatment of minority interest in a non-controlled subsidiary for the years 2011, 2012 and 2013. Prior to the third quarter of 2015, the Company believed it would prevail on its appeal of the assessment based on the intention of the tax statute, which specifically excluded minority interests from the shares tax assessment base. However, during the third quarter of 2015, the Pennsylvania Commonwealth Court settled the first case related to this issue which set the precedent for all other appeals on this issue. As a result, the Company agreed to a similar settlement. There are no other tax years open for assessment of this minority interest issue.

Offsetting these increases is a $1.5 million decrease in furniture and equipment expense due to declines in equipment and software maintenance costs as a result of the IT system conversion which was completed in the third quarter of 2014.

Loss on sale or write-down of assets for the nine months endedSeptember 30, 2015 increased $0.8 million as compared to the same period in 2014. The loss in 2015 includes $1.1 million in write-downs on three OREO properties recognized as a result of updated appraisals as well as a $0.4 million write-down due to the anticipated sale of a bank building. The sale of this building and closing of the related branch office is estimated to provide $0.2 million in annual savings. The loss on sale or write-down of assets for the nine months endedSeptember 30, 2014 included a $0.7 million write-down on one OREO property.

Operational losses (recoveries) increased $1.9 million for the nine months endedSeptember 30, 2015. In the first nine months of 2015, operational losses are largely due to fraud losses recognized in conjunction with several merchant debit card breaches. The negative expense recognized in the nine months endedSeptember 30, 2014 is a result of a $0.9 million insurance recovery related to a fraud loss recognized in 2012.

45

ITEM 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations (Continued)

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

During the third quarter of 2014, First Commonwealth completed a system conversion to the Jack Henry and Associates SilverLake System core processing software and outsourced certain data processing services that had previously been performed in-house. Expenses related to the conversion included accelerated depreciation for data processing hardware and software, early termination charges on previous contracts, and staffing and employment-related charges. During the nine months endedSeptember 30, 2014, $5.6 million in accelerated depreciation and $1.7 million in other conversion related expenses were recognized.

Income Tax

The provision for income taxes increased$1.3 million for the nine months endedSeptember 30, 2015, compared to the corresponding period in 2014. The higher provision for income taxes was the result of a $4.7 millionincrease in the level of income before taxes.

We applied the “annual effective tax rate approach” to determine the provision for income taxes, which applies an annual forecast of tax expense as a percentage of expected full year income, for the nine months endedSeptember 30, 2015 and 2014.

We generate an annual effective tax rate that is less than the statutory rate of 35% due to benefits resulting from tax-exempt interest, income from bank-owned life insurance and tax benefits associated with low income housing tax credits, which are relatively consistent regardless of the level of pretax income. The level of tax benefits that reduced our tax rate below the 35% statutory rate produced an annual effective tax rate of 29.3% and 29.4% for the nine months endedSeptember 30, 2015 and 2014, respectively.

As of September 30, 2015, our deferred tax assets totaled $32.0 million. Based on our evaluation as of September 30, 2015, we determined that it is more likely than not that all of these assets will be realized. As a result, a valuation allowance against these assets was not needed. In evaluating the need for a valuation allowance, we estimate future taxable income based on management approved forecasts, evaluation of historical earning levels and consideration of potential tax strategies. If future events differ from our current forecasts, we may need to establish a valuation allowance, which could have a material impact on our financial condition and results of operations.

Three Months EndedSeptember 30, 2015 Compared to Three Months EndedSeptember 30, 2014

Net Income

For the three months endedSeptember 30, 2015, First Commonwealth had net income of $12.4 million, or $0.14 per share, compared to net income of $12.5 million, or $0.13 per share, in the three months endedSeptember 30, 2014. For the three months endedSeptember 30, 2015, the Company’s return on average equity was 6.86% and its return on average assets was 0.78%, compared to 6.91% and 0.78%, respectively, for the three months endedSeptember 30, 2014. The decrease in net income was primarily the result of an increase in the provision for credit losses offset by declines in noninterest expense and an increase in noninterest income.

Net Interest Income

Net interest income, on a fully taxable equivalent basis, was $47.6 million in the third quarter of 2015, compared to $47.4 million for the same period in 2014. This increase was primarily due a growth in interest-earning assets and a decline in the cost of interest-bearing liabilities. The net interest margin, on a fully taxable equivalent basis, was 3.25% and 3.26% for the three months endedSeptember 30, 2015 and September 30, 2014, respectively.

The taxable equivalent yield on interest-earning assets was 3.52% for the three months endedSeptember 30, 2015, a decrease of 5 basis points compared to the 3.57% yield for the same period in 2014. Growth in earning assets has helped to offset the spread compression, as average interest-earning assets for the three months endedSeptember 30, 2015 increased $27.7 million, or 0.5%, compared to the comparable period in 2014. Average loans increased $162.8 million, or 3.7%, comparing the three months ended September 30, 2015 to the same period in 2014. Investment portfolio purchases during the three months endedSeptember 30, 2015 have been primarily in mortgage-related assets with approximate durations of 48-60 months and municipal securities with a duration of five years. The mortgage-related investments have monthly principal payments that will provide for reinvestment opportunities as interest rates rise.

Reductions in the cost of interest-bearing liabilities offset the impact of lower yields on interest-earning assets. The cost of interest-bearing liabilities was 0.34% for the three months endedSeptember 30, 2015, compared to 0.39% for the same period

46

ITEM 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations (Continued)

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

in 2014. This decline can be attributed to a 35 basis point decrease in the cost of time deposits, as maturities were repriced lower or replaced with lower cost short-term borrowings.

For the three months endedSeptember 30, 2015, changes in interest rates negatively impacted net interest income by $1.7 million when compared with the same period in 2014. The lower yield on interest-earning assets adversely impacted net interest income by $1.5 million, while increases in the cost of short-term borrowings and long term debt resulted in a negative impact of $0.7 million.

While decreases in interest rates and yields compressed the net interest margin, increases in average interest-earning assets offset the effect on net interest income. Changes in the volumes of interest-earning assets and interest-bearing liabilities positively impacted net interest income by $1.9 million in the three months endedSeptember 30, 2015, as compared to the same period in 2014. Higher levels of interest-earning assets resulted in an increase of $1.0 million in interest income, while volume changes decreased interest expense by $0.9 million, primarily as the result of changes in time deposits, including brokered deposits, and long-term debt.

Net interest income also benefited from a $79.8 million increase in average net free funds at September 30, 2015 as compared to September 30, 2014. Average net free funds are the excess of noninterest-bearing demand deposits, other noninterest-bearing liabilities and shareholders’ equity over noninterest-earning assets. The largest component of the increase in net free funds was an increase of $69.5 million, or 7.0%, in noninterest-bearing demand deposit average balances. Additionally, higher cost time deposits continue to mature and reprice into lower cost deposits or other funding alternatives. Average time deposits for the three months endedSeptember 30, 2015 decreased by $295.0 million compared to the comparable period in 2014.

The following table reconciles interest income in the Condensed Consolidated Statements of Income to net interest income adjusted to a fully taxable equivalent basis for the three months endedSeptember 30:

	2015		2014
	(dollars in thousands)
Interest income per Condensed Consolidated Statements of Income	$	50,501	$	51,089
Adjustment to fully taxable equivalent basis	883		811
Interest income adjusted to fully taxable equivalent basis (non-GAAP)	51,384		51,900
Interest expense	3,816		4,536
Net interest income adjusted to fully taxable equivalent basis (non-GAAP)	$	47,568	$	47,364

47

ITEM 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations (Continued)

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

The following is an analysis of the average balance sheets and net interest income on a fully taxable equivalent basis, for the three months endedSeptember 30:

	2015							2014
	Average Balance			Income / Expense (a)		Yield or Rate		Average Balance			Income / Expense (a)		Yield or Rate
	(dollars in thousands)
Assets
Interest-earning assets:
Interest-bearing deposits with banks	$	3,221		$	2	0.25	%	$	4,758		$	4	0.33	%
Tax-free investment securities	41,671			401		3.82		16,233			160		3.91
Taxable investment securities	1,203,603			7,155		2.36		1,362,563			7,781		2.27
Loans, net of unearned income (b)(c)	4,550,882			43,826		3.82		4,388,130			43,955		3.97
Total interest-earning assets	5,799,377			51,384		3.52		5,771,684			51,900		3.57
Noninterest-earning assets:
Cash	66,685							71,391
Allowance for credit losses	(47,152		)					(52,522		)
Other assets	524,099							534,515
Total noninterest-earning assets	543,632							553,384
Total Assets	$	6,343,009						$	6,325,068
Liabilities and Shareholders’ Equity
Interest-bearing liabilities:
Interest-bearing demand deposits (d)	$	656,008		$	66	0.04	%	$	633,213		$	49	0.03	%
Savings deposits (d)	1,848,508			647		0.14		1,832,914			578		0.13
Time deposits	659,445			1,044		0.63		954,474			2,347		0.98
Short-term borrowings	1,232,795			1,279		0.41		940,156			662		0.28
Long-term debt	111,285			780		2.78		199,435			900		1.79
Total interest-bearing liabilities	4,508,041			3,816		0.34		4,560,192			4,536		0.39
Noninterest-bearing liabilities and shareholders’ equity:
Noninterest-bearing demand deposits (d)	1,065,204							995,690
Other liabilities	51,586							51,327
Shareholders’ equity	718,178							717,859
Total noninterest-bearing funding sources	1,834,968							1,764,876
Total Liabilities and Shareholders’ Equity	$	6,343,009						$	6,325,068
Net Interest Income and Net Yield on Interest-Earning Assets				$	47,568	3.25	%				$	47,364	3.26	%

(a) Income on interest-earning assets has been computed on a fully taxable equivalent basis using the 35% federal income tax statutory rate.

(b) Loan balances include held for sale and nonaccrual loans. Income on nonaccrual loans is accounted for on the cash basis.

(c) Loan income includes loan fees earned.

(d) Average balances do not include reallocations from noninterest-bearing demand deposits and interest-bearing demand deposits into savings deposits, which were made for regulatory purposes.

48

ITEM 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations (Continued)

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

The following table shows the effect of changes in volumes and rates on interest income and interest expense for the three months endedSeptember 30, 2015 compared with September 30, 2014:

	Analysis of Year-to-Year Changes in Net Interest Income
	Total Change			Change Due To Volume			Change Due To Rate (a)
	(dollars in thousands)
Interest-earning assets:
Interest-bearing deposits with banks	$	(2	)	$	(1	)	$	(1	)
Tax-free investment securities	241			251			(10		)
Taxable investment securities	(626		)	(910		)	284
Loans	(129		)	1,629			(1,758		)
Total interest income (b)	(516		)	969			(1,485		)
Interest-bearing liabilities:
Interest-bearing demand deposits	17			2			15
Savings deposits	69			5			64
Time deposits	(1,303		)	(729		)	(574		)
Short-term borrowings	617			207			410
Long-term debt	(120		)	(398		)	278
Total interest expense	(720		)	(913		)	193
Net interest income	$	204		$	1,882		$	(1,678	)

(a) Changes in interest income or expense not arising solely as a result of volume or rate variances are allocated to rate variances.

(b) Changes in interest income have been computed on a fully taxable equivalent basis using the 35% federal income tax statutory rate.

Provision for Credit Losses

The provision for credit losses is determined based on management’s estimates of the appropriate level of the allowance for credit losses needed for probable losses inherent in the loan portfolio, after giving consideration to charge-offs and recoveries for the period. The provision for credit losses is an amount added to the allowance, against which credit losses are charged.

The table below provides a breakout of the provision for credit losses by loan category for the three months endedSeptember 30:

	2015					2014
	Dollars			Percentage		Dollars			Percentage
	(dollars in thousands)
Commercial, financial, agricultural and other	$	3,520		76	%	$	(1,958	)	(94	)%
Real estate construction	75			2		2,073			100
Residential real estate	(124		)	(3	)	(217		)	(11	)
Commercial real estate	703			15		1,528			74
Loans to individuals	447			10		647			31
Total	$	4,621		100	%	$	2,073		100	%

The provision for credit losses for the three months ended September 30, 2015increased in comparison to the three months endedSeptember 30, 2014 by $2.5 million, or 123%. The majority of the 2015 provision expense is attributable to commercial, financial, agricultural and other loans because of a $2.5 million increase in specific reserves for two impaired loans. Increases in the commercial real estate and loans to individual categories are the result of charge-offs during the quarter, while the negative provision for residential real estate can be attributed to declines in qualitative factors, including those associated with inflation and wages.

The majority of the 2014 provision expense is attributable to loan growth in the real estate construction and commercial real estate categories, as well as increases in qualitative factors such as those associated with vacancy, capitalization rates and absorption.

49

ITEM 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations (Continued)

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

Below is an analysis of the consolidated allowance for credit losses for three months endedSeptember 30, 2015 and 2014 and the year-ended December 31, 2014:

	September 30, 2015		September 30, 2014		December 31, 2014
	(dollars in thousands)
Balance, beginning of period	$	45,344	$	50,725	$	54,225
Loans charged off:
Commercial, financial, agricultural and other	639		498		8,911
Real estate construction	—		—		296
Residential real estate	301		551		3,153
Commercial real estate	561		812		1,148
Loans to individuals	900		1,019		3,964
Total loans charged off	2,401		2,880		17,472
Recoveries of loans previously charged off:
Commercial, financial, agricultural and other	564		204		734
Real estate construction	—		132		1,340
Residential real estate	178		97		650
Commercial real estate	33		177		612
Loans to individuals	179		256		766
Total recoveries	954		866		4,102
Net credit losses	1,447		2,014		13,370
Provision charged to expense	4,621		2,073		11,196
Balance, end of period	$	48,518	$	50,784	$	52,051

Noninterest Income

The following table presents the components of noninterest income for the three months endedSeptember 30:

	2015			2014			$ Change			% Change
	(dollars in thousands)
Noninterest Income:
Trust income	$	1,614		$	1,678		$	(64	)	(4	)%
Service charges on deposit accounts	4,081			4,099			(18		)	—
Insurance and retail brokerage commissions	2,163			1,709			454			27
Income from bank owned life insurance	1,357			1,330			27			2
Card related interchange income	3,637			3,599			38			1
Other income	1,796			1,953			(157		)	(8	)
Subtotal	14,648			14,368			280			2
Net securities gains	—			48			(48		)	(100	)
Gain on sale of loans	1,196			67			1,129			1,685
Gain on sale of other assets	444			675			(231		)	(34	)
Derivatives mark to market expense	(783		)	(108		)	(675		)	625
Total noninterest income	$	15,505		$	15,050		$	455		3	%

Noninterest income, excluding net securities gains, gain on sale of loans and other assets and derivative mark to market expense, increased$0.3 million, or 2%, for the third quarter of 2015 compared to 2014. Insurance and retail brokerage commissions increased $0.5 million as a result of increased production and an agency acquisition in the fourth quarter of 2014. Offsetting that increase is a $0.2 million decrease in other income.

Total noninterest income for the three months endedSeptember 30, 2015increased$0.5 million in comparison to the three months endedSeptember 30, 2014. The most significant change includes a $1.1 million increase in gains on the sale of loans due primarily to the Company reentering the secondary mortgage market. This increase was offset by a $0.7 milliondecrease in

50

ITEM 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations (Continued)

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

income as a result of the quarterly fair value adjustment on derivatives due to changes in corporate bond spreads and swap rates during the third quarter.

Noninterest Expense

The following table presents the components of noninterest expense for the three months endedSeptember 30:

	2015		2014		$ Change			% Change
	(dollars in thousands)
Noninterest Expense:
Salaries and employee benefits	$	22,446	$	22,244	$	202		1	%
Net occupancy expense	3,291		3,180		111			3
Furniture and equipment expense	2,670		3,046		(376		)	(12	)
Data processing expense	1,558		1,583		(25		)	(2	)
Advertising and promotion expense	789		861		(72		)	(8	)
Pennsylvania shares tax expense	1,713		1,033		680			66
Intangible amortization	157		174		(17		)	(10	)
Collection and repossession expense	801		783		18			2
Other professional fees and services	1,007		1,050		(43		)	(4	)
FDIC insurance	963		926		37			4
Other operating expenses	4,408		4,232		176			4
Subtotal	39,803		39,112		691			2
Loss on sale or write-down of assets	140		61		79			130
Furniture and equipment expense - related to IT conversion	—		1,425		(1,425		)	(100	)
Conversion related expenses	—		783		(783		)	(100	)
Operational losses (recoveries)	314		187		127			68
Total noninterest expense	$	40,257	$	41,568	$	(1,311	)	(3	)%

Noninterest expense, excluding loss on sale or write-down of assets, furniture and equipment expense related to IT conversion, conversion related expenses and operational losses (recoveries), increased$0.7 million for the three months endedSeptember 30, 2015 compared to the same period in 2014. The primary reason for this increase is the $0.7 million increase in Pennsylvania shares tax expense as a result of the settlement of the previously discussed tax dispute. Offsetting this increase is a decrease of $0.4 million in furniture and equipment expense due to lower maintenance costs resulting from the IT system conversion completed in the third quarter of 2014.

During the third quarter of 2014, First Commonwealth completed a system conversion to the Jack Henry and Associates SilverLake System core processing software and outsourced certain data processing services that had previously been performed in-house. Expenses related to the conversion included accelerated depreciation for data processing hardware and software, early termination charges on previous contracts, and staffing and employment-related charges. During the three months endedSeptember 30, 2014, $1.4 million in accelerated depreciation and $0.8 million in other conversion related expenses were recognized.

Income Tax

The provision for income taxes decreased$0.6 million for the three months endedSeptember 30, 2015, compared to the corresponding period in 2014. The lower provision for income taxes was the result of a $0.7 milliondecrease in the level of income before taxes and an increase in the level of tax-exempt income.

We applied the “annual effective tax rate approach” to determine the provision for income taxes, which applies an annual forecast of tax expense as a percentage of expected full year income, for the three months endedSeptember 30, 2015 and 2014.

We generate an annual effective tax rate that is less than the statutory rate of 35% due to benefits resulting from tax-exempt interest, income from bank-owned life insurance and tax benefits associated with low income housing tax credits, which are relatively consistent regardless of the level of pretax income. The level of tax benefits that reduced our tax rate below the 35% statutory rate produced an annual effective tax rate of 28.3% and 30.4% for the three months endedSeptember 30, 2015 and 2014, respectively.

51

ITEM 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations (Continued)

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

Liquidity

Liquidity refers to our ability to meet the cash flow requirements of depositors and borrowers as well as our operating cash needs with cost-effective funding. We generate funds to meet these needs primarily through the core deposit base of First Commonwealth Bank and the maturity or repayment of loans and other interest-earning assets, including investments. During the first nine months of 2015, liquidity provided from the net increase in short-term borrowings totaled $223.9 million, while the maturity and redemption of investment securities provided $290.8 million. This liquidity provided funds needed to originate loans, purchase investment securities and fund depositor withdrawals.  We also have available unused wholesale sources of liquidity, including overnight federal funds and repurchase agreements, advances from the FHLB of Pittsburgh, borrowings through the discount window at the Federal Reserve Bank of Cleveland (“FRB”) and access to certificates of deposit through brokers.

In order to increase and diversify our funding sources, we participate in the Certificate of Deposit Account Registry Services (“CDARS”) program as part of an Asset/Liability Committee (“ALCO”) strategy to increase and diversify funding sources. As of September 30, 2015, our maximum borrowing capacity under this program was $955.6 million and as of that date there was $3.6 million outstanding. Also included in this amount is a reciprocal program which allows our depositors to receive expanded FDIC coverage by placing multiple certificates of deposit at other CDARS member banks. As of September 30, 2015, our outstanding certificates of deposits from this program have an average weighted rate of 0.26% and an average original term of 138 days.

An additional source of liquidity is the FRB Borrower-in-Custody of Collateral program, which enables us to pledge certain loans that are not being used as collateral at the FHLB as collateral for borrowings at the FRB. At September 30, 2015, the borrowing capacity under this program totaled $665.6 million and there were no amounts outstanding.

As of September 30, 2015, our maximum borrowing capacity at the FHLB of Pittsburgh was $1.6 billion and as of that date amounts used against this capacity included $1.2 billion in outstanding borrowings and $24.5 million in letter of credit commitments used for pledging public funds and other non-deposit purposes.

We also have available unused federal funds lines with four correspondent banks. These lines have an aggregate commitment of $170.0 million with $20.0 million outstanding as of September 30, 2015.

First Commonwealth Financial Corporation has an unsecured $15.0 million line of credit with another financial institution. As of September 30, 2015, there are no amounts outstanding on this line.

First Commonwealth’s long-term liquidity source is its core deposit base. Core deposits are the most stable source of liquidity a bank can have due to the long-term relationship with a deposit customer. The level of deposits during any period is influenced by factors outside of management’s control, such as the level of short-term and long-term market interest rates and yields offered on competing investments, such as money market mutual funds. The following table shows a breakdown of the components of First Commonwealth’s deposits:

	September 30, 2015		December 31, 2014
	(dollars in thousands)
Noninterest-bearing demand deposits	$	1,077,234	$	989,027
Interest-bearing demand deposits	70,662		81,851
Savings deposits	2,427,326		2,402,288
Time deposits	586,268		842,345
Total	$	4,161,490	$	4,315,511

During the first nine months of 2015, total deposits decreased$154.0 million due to a $256.1 milliondecrease in time deposits partially offset by increases of $13.8 million in interest-bearing demand and savings deposits and $88.2 million in noninterest-bearing deposits. The decrease in time deposits is due to a decline in wholesale certificates of deposit of $146.3 million coupled with a decline in core certificates of deposit of $109.7 million. Wholesale certificates can, at times, offer a more attractive source of incremental funding as they can, depending on market conditions, have a lower incremental cost of funds than traditional certificate of deposit funding.

Market Risk

The following gap analysis compares the difference between the amount of interest-earning assets and interest-bearing liabilities subject to repricing over a period of time. The ratio of rate-sensitive assets to rate-sensitive liabilities repricing within

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ITEM 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations (Continued)

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

a one-year period was 0.74 and 0.69 at September 30, 2015 and December 31, 2014, respectively. A ratio of less than one indicates a higher level of repricing liabilities over repricing assets over the next twelve months. The level of First Commonwealth's ratio is largely driven by the modeling of interest-bearing non-maturity deposits, which are included in the analysis as repricing within one year.

Gap analysis has limitations due to the static nature of the model that holds volumes and consumer behaviors constant in all economic and interest rate scenarios. A lower level of rate sensitive assets to rate sensitive liabilities repricing in one year could indicate reduced net interest income in a rising interest rate scenario, and conversely, increased net interest income in a declining interest rate scenario. However, the gap analysis incorporates only the level of interest-earning assets and interest-bearing liabilities and not the sensitivity each has to changes in interest rates. The impact of the sensitivity to changes in interest rates is provided in the table below the gap analysis.

The following is the gap analysis as of September 30, 2015 and December 31, 2014:

	September 30, 2015
	0-90 Days			91-180 Days			181-365 Days			Cumulative 0-365 Days			Over 1 Year Through 5 Years			Over 5 Years
	(dollars in thousands)
Loans	$	2,330,773		$	170,888		$	305,469		$	2,807,130		$	1,429,116		$	315,771
Investments	148,048			42,952			162,874			353,874			523,351			371,076
Other interest-earning assets	3,529			—			—			3,529			—			—
Total interest-sensitive assets (ISA)	2,482,350			213,840			468,343			3,164,533			1,952,467			686,847
Certificates of Deposit	125,567			96,274			145,380			367,221			215,033			4,014
Other deposits	2,497,989			—			—			2,497,989			—			—
Borrowings	1,431,700			139			282			1,432,121			2,463			6,430
Total interest-sensitive liabilities (ISL)	4,055,256			96,413			145,662			4,297,331			217,496			10,444
Gap	$	(1,572,906	)	$	117,427		$	322,681		$	(1,132,798	)	$	1,734,971		$	676,403
ISA/ISL	0.61			2.22			3.22			0.74			8.98			65.76
Gap/Total assets	24.64		%	1.84		%	5.05		%	17.74		%	27.17		%	10.59		%

	December 31, 2014
	0-90 Days			91-180 Days			181-365 Days			Cumulative 0-365 Days			Over 1 Year Through 5 Years			Over 5 Years
	(dollars in thousands)
Loans	$	2,274,687		$	166,818		$	294,772		$	2,736,277		$	1,412,835		$	267,876
Investments	52,057			60,708			125,801			238,566			767,521			338,182
Other interest-earning assets	2,262			—			—			2,262			—			—
Total interest-sensitive assets (ISA)	2,329,006			227,526			420,573			2,977,105			2,180,356			606,058
Certificates of Deposit	278,659			114,932			193,346			586,937			251,153			4,255
Other deposits	2,484,139			—			—			2,484,139			—			—
Borrowings	1,203,176			25,135			29,873			1,258,184			2,385			6,931
Total interest-sensitive liabilities (ISL)	3,965,974			140,067			223,219			4,329,260			253,538			11,186
Gap	$	(1,636,968	)	$	87,459		$	197,354		$	(1,352,155	)	$	1,926,818		$	594,872
ISA/ISL	0.59			1.62			1.88			0.69			8.60			54.18
Gap/Total assets	25.74		%	1.38		%	3.10		%	21.26		%	30.29		%	9.35		%

53

ITEM 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations (Continued)

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

The following table presents an analysis of the potential sensitivity of our annual net interest income to gradual changes in interest rates over a 12 month time frame as compared with net interest income if rates remained unchanged and there are no changes in balance sheet categories.

	Net interest income change (12 months)
	-200			-100			+100			+200
	(dollars in thousands)
September 30, 2015 ($)	$	(7,830	)	$	(3,408	)	$	(387	)	$	(324	)
September 30, 2015 (%)	(4.2		)%	(1.8		)%	(0.2		)%	(0.2		)%
December 31, 2014 ($)	$	(5,280	)	$	(1,414	)	$	211		$	869
December 31, 2014 (%)	(2.9		)%	(0.8		)%	0.1		%	0.5		%

The following table represents the potential sensitivity of our annual net interest income to immediate changes in interest rates versus if rates remained unchanged utilizing a flat balance sheet.

	Net interest income change (12 months)
	-200			-100			+100			+200
	(dollars in thousands)
September 30, 2015 ($)	$	(13,027	)	$	(7,483	)	$	1,487		$	3,800
September 30, 2015 (%)	(7.0		)%	(4.0		)%	0.8		%	2.0		%
December 31, 2014 ($)	$	(11,925	)	$	(6,532	)	$	577		$	1,511
December 31, 2014 (%)	(6.4		)%	(3.5		)%	0.3		%	0.8		%

The analysis and model used to quantify the sensitivity of our net interest income becomes less reliable in a decreasing 200 basis point scenario given the current low interest rate environment. Results of the 100 and 200 basis point interest rate decline scenario are affected by the fact that many of our interest-bearing liabilities are at rates below 1%, and therefore cannot decline 100 or 200 basis points, yet our interest-sensitive assets are able to decline by these amounts. In the nine months endedSeptember 30, 2015 and 2014, the cost of our interest-bearing liabilities averaged 0.34% and 0.42%, respectively, and the yield on our average interest-earning assets, on a fully taxable equivalent basis, averaged 3.55% and 3.62%, respectively.

During the first quarter of 2015, the Company entered into cash flow interest rate swaps in which we extended the duration of $100.0 million of the $1.3 billion LIBOR based loans in our loan portfolio into fixed interest rates for a period of three or four years. These swaps add approximately two basis points of protection to the net interest margin as a hedge against a prolonged low-rate environment. A similar cash flow interest rate swap, with a notional amount of $100.0 million, was entered into in 2014. Please refer to Note 11, "Derivatives," for additional information on interest rate swaps.

Asset/liability models require that certain assumptions be made, such as prepayment rates on earning assets and the impact of pricing on non-maturity deposits, which may differ from actual experience. These business assumptions are based upon our experience, business plans and published industry experience. While management believes such assumptions to be reasonable, there can be no assurance that modeled results will approximate actual results.

Credit Risk

First Commonwealth maintains an allowance for credit losses at a level deemed sufficient for losses inherent in the loan portfolio at the date of each statement of financial condition. Management reviews the adequacy of the allowance on a quarterly basis to ensure that the provision for credit losses has been charged against earnings in an amount necessary to maintain the allowance at a level that is appropriate based on management’s assessment of probable estimated losses.

First Commonwealth’s methodology for assessing the appropriateness of the allowance for credit losses consists of several key elements. These elements include an assessment of individual impaired loans with a balance greater than $0.1 million, loss experience trends and other relevant factors.

54

ITEM 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations (Continued)

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

First Commonwealth also maintains a reserve for unfunded loan commitments and letters of credit based upon credit risk and probability of funding. The reserve totaled $3.8 million at September 30, 2015 and is classified in "Other liabilities" on the Condensed Consolidated Statements of Financial Condition.

First Commonwealth defines exposure to the Oil and Gas Industry as any borrower who is involved in exploration and production, and any company in the industry supply chain that generates 40% or more of their sales revenue from exploration and production companies.

As of September 30, 2015, the Company had a total of $145.5 million in commitments to the Oil and Gas Industry, with $69.6 million in outstanding loan balances against those commitments. Of this total, commitments of $41.1 million with outstanding balances of $13.2 million are for exploration and production, while $104.4 million in commitments, with outstanding balances of $56.4 million, are related to ancillary businesses.

Two customers account for 85.1% of the loans related to exploration and production and both are pass-rated credits. These credit facilities are primarily used to support letters of credit and have little or no usage. Two commercial relationships in this category, totaling $3.4 million, are on non-performing status and have been even before the oil price decline in the third quarter of 2014.

The ancillary businesses sector consist of well services, transportation, and providing equipment and materials to support the oil and gas industry. Two customers, which account for 37.4% of the ancillary business exposure, are bulk transporters of refined product and are not expected to be negatively impacted from lower oil prices. There are four pass-rated credits, with total commitments of $39.2 million, in the ancillary business sector that will see some impact from reduced drilling activity due to lower oil and gas prices. The Company will continue to monitor their performance accordingly. One commercial relationship with $2.3 million in outstanding loans for an ancillary business has been on non-performing status since 2012.

Nonperforming loans include nonaccrual loans and loans classified as troubled debt restructurings. Nonaccrual loans represent loans on which interest accruals have been discontinued. Troubled debt restructured loans are those loans whose terms have been renegotiated to provide a reduction or deferral of principal or interest as a result of the deteriorating financial position of the borrower, who could not obtain comparable terms from alternative financing sources. In the first nine months of 2015, 37 loans totaling $4.2 million were identified as troubled debt restructurings.

The balance of troubled debt restructured loans, including held for sale loans, decreased$8.9 million due primarily to a charge-off of $3.3 million related to a loan relationship with a local energy company, the payoff of a $1.4 million commercial industrial loan with a local lumber company and a $1.2 million charge-off on a loan transferred to held for sale and $2.4 million related to the subsequent sale of the loan. Please refer to Note 8, “Loans and Allowance for Credit Losses,” for additional information on troubled debt restructurings.

We discontinue interest accruals on a loan when, based on current information and events, it is probable that we will be unable to fully collect principal or interest due according to the contractual terms of the loan. A loan is also placed on nonaccrual status when, based on regulatory definitions, the loan is maintained on a “cash basis” due to the weakened financial condition of the borrower. Generally, loans 90 days or more past due are placed on nonaccrual status, except for consumer loans which are placed on nonaccrual status at 150 days past due.

Nonperforming loans are closely monitored on an ongoing basis as part of our loan review and work-out process. The probable risk of loss on these loans is evaluated by comparing the loan balance to the fair value of any underlying collateral or the present value of projected future cash flows. Losses or a specifically assigned allowance for loan losses are recognized where appropriate.

Nonperforming loans, including loans held for sale, decreased$14.4 million to $40.8 million at September 30, 2015 compared to $55.3 million at December 31, 2014. This decrease is primarily due to $6.8 million in charge-offs on three commercial relationships, $5.9 million in payments from two commercial relationships, $2.4 million transferred to OREO and the sale of $2.4 million in loans for one commercial relationship. Offsetting this decrease is the addition of a $6.1 million commercial relationship with an industrial manufacturer.

The allowance for credit losses as a percentage of nonperforming loans was 118.84% as of September 30, 2015 compared to 94.21% at December 31, 2014 and 112.21% at September 30, 2014. The amount of specific reserves included in the allowance for nonperforming loans was determined by using fair values obtained from current appraisals and updated discounted cash flow analyses. The allowance for credit losses includes specific reserves of $4.3 million and general reserves of $44.3 million as of September 30, 2015. Specific reserves decreased$5.2 million from December 31, 2014, and $0.4 million from September 30, 2014. The decrease in specific reserves in the first nine months of 2015 is primarily due to charge-offs of loans

55

ITEM 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations (Continued)

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

which were provided for in prior periods. Management believes that the allowance for credit losses is at a level deemed sufficient to absorb losses inherent in the loan portfolio at September 30, 2015.

Criticized loans totaled $136.9 million at September 30, 2015 and represented 3.0% of the loan portfolio. The level of criticized loans decreased as of September 30, 2015 when compared to December 31, 2014, by $3.2 million, or 2.3%. Classified loans totaled $81.7 million at September 30, 2015 compared to $67.8 million at December 31, 2014, an increase of $14.0 million, or 20.6%. Delinquency on accruing loans for the same period decreased$4.2 million, or 22.6%, the majority of which are commercial real estate and residential real estate loans.

The allowance for credit losses was $48.5 million at September 30, 2015 or 1.06% of total loans outstanding compared to 1.17% reported at December 31, 2014 and 1.15% at September 30, 2014. General reserves, or the portion of the allowance related to loans which were not specifically evaluated for impairment, as a percentage of non-impaired loans were 0.98% at September 30, 2015 compared to 0.97% at December 31, 2014 and 1.06% at September 30, 2014.

56

ITEM 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations (Continued)

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

The following table provides information related to nonperforming assets, the allowance for credit losses and other credit-related measures:

	September 30,								December 31, 2014
	2015				2014
	(dollars in thousands)
Nonperforming Loans:
Loans on nonaccrual basis	$	20,220			$	27,310			$	25,715
Troubled debt restructured loans on nonaccrual basis	8,583				6,783				16,952
Troubled debt restructured loans on accrual basis	12,024				11,164				12,584
Total nonperforming loans	$	40,827			$	45,257			$	55,251
Loans past due 30 to 90 days and still accruing	$	12,482			$	15,778			$	16,163
Loans past due in excess of 90 days and still accruing	$	2,054			$	2,374			$	2,619
Other real estate owned	$	10,542			$	7,751			$	7,197
Loans held for sale at end of period	$	4,986			$	1,305			$	2,502
Loans outstanding at end of period	$	4,575,735			$	4,411,481			$	4,457,308
Average loans outstanding	$	4,509,628		(a)	$	4,331,807		(a)	$	4,356,566		(b)
Nonperforming loans as a percentage of total loans	0.89		%		1.03		%		1.24		%
Provision for credit losses	$	8,818		(a)	$	8,621		(a)	$	11,196		(b)
Allowance for credit losses	$	48,518			$	50,784			$	52,051
Net charge-offs	$	12,351		(a)	$	12,062		(a)	$	13,370		(b)
Net charge-offs as a percentage of average loans outstanding (annualized)	0.37		%		0.37		%		0.31		%
Provision for credit losses as a percentage of net charge-offs	71.40		%	(a)	71.47		%	(a)	83.74		%	(b)
Allowance for credit losses as a percentage of end-of-period loans outstanding	1.06		%		1.15		%		1.17		%
Allowance for credit losses as a percentage of nonperforming loans (c)	118.84		%		112.21		%		94.21		%

(a) For the nine-month period ended.

(b) For the twelve-month period ended.

(c) Does not include nonperforming loans held for sale.

The following tables show the outstanding balances of our loan portfolio and the breakdown of net charge-offs and nonperforming loans, excluding loans held for sale, by loan type as of and for the periods presented:

	September 30, 2015				December 31, 2014
	Amount		%		Amount		%
	(dollars in thousands)
Commercial, financial, agricultural and other	$	1,126,881	25	%	$	1,052,109	24	%
Real estate construction	179,710		4		120,785		3
Residential real estate	1,204,220		26		1,226,344		27
Commercial real estate	1,435,954		31		1,405,256		31
Loans to individuals	628,970		14		652,814		15
Total loans and leases net of unearned income	$	4,575,735	100	%	$	4,457,308	100	%

During the nine months endedSeptember 30, 2015, loans increased$118.4 million, or 3%, compared to balances outstanding at December 31, 2014. All categories of loans reflected growth during the first nine months of 2015, except for residential real estate loans and loans to individuals. Declines in the loans to individuals category is primarily due to a decline in indirect auto loans. The decline in residential real estate loans is the result of continued runoff in our mortgage portfolio, as many of the loans originated by our mortgage banking area are sold in the secondary market.

Net charge-offs for the nine months endedSeptember 30, 2015 totaled $12.4 million compared to $12.1 million for the nine months endedSeptember 30, 2014. The most significant charge-offs during the nine months endedSeptember 30, 2015 include a $2.3 million partial charge-off of two commercial industrial loans related to a local energy company and a $1.2 million

57

ITEM 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations (Continued)

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

charge-off of a commercial relationship that was transferred to loans held for sale. During the nine months endedSeptember 30, 2014, the most significant charge-offs included $8.0 million recognized on two commercial loans and 16 consumer loan relationships.

	For the Nine Months Ended September 30, 2015							As of September 30, 2015
	Net Charge- offs			% of Total Net Charge-offs		Net Charge- offs as a % of Average Loans (annualized)		Nonperforming Loans		% of Total Nonperforming Loans		Nonperforming Loans as a % of Total Loans
	(dollars in thousands)
Commercial, financial, agricultural and other	$	7,657		61.99	%	0.23	%	$	23,393	57.29	%	0.51	%
Real estate construction	(84		)	(0.68	)	—		31		0.08		—
Residential real estate	934			7.56		0.03		10,142		24.84		0.22
Commercial real estate	1,063			8.61		0.03		6,965		17.06		0.15
Loans to individuals	2,781			22.52		0.08		296		0.73		0.01
Total loans, net of unearned income	$	12,351		100.00	%	0.37	%	$	40,827	100.00	%	0.89	%

As the above table illustrates, commercial, financial, agricultural and other, residential real estate and commercial real estate loans represented a significant portion of the nonperforming loans as of September 30, 2015. See discussions related to the provision for credit losses and loans for more information.

Capital Resources

At September 30, 2015, shareholders’ equity was $722.8 million, an increase of $6.6 million from December 31, 2014. The increase was primarily the result of $25.4 million of common stock repurchases and $18.9 million of dividends paid to shareholders, offset by $40.1 million in net income and increases of $9.5 million in the fair value of available for sale investments. Cash dividends declared per common share were $0.21 for the nine months endedSeptember 30, 2015 and 2014.

First Commonwealth and First Commonwealth Bank are subject to various regulatory capital requirements administered by the federal banking agencies. Failure to meet minimum capital requirements can initiate certain mandatory and possibly additional discretionary actions by regulators that, if undertaken, could have a direct material effect on First Commonwealth’s financial statements. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, First Commonwealth and First Commonwealth Bank must meet specific capital guidelines that involve quantitative measures of First Commonwealth’s assets, liabilities and certain off-balance sheet items as calculated under regulatory accounting practices. First Commonwealth’s capital amounts and classification are also subject to qualitative judgments by the regulators about components, risk weighting and other factors.

First Commonwealth maintains capital to absorb unexpected losses. In order to provide assurance that our capital levels are adequate for our risk exposure we test our capital position under several stress scenarios on a annual basis. This analysis is subject to Board of Director review and approval. Our most recent capital stress test was completed in December 2014.

Effective January 1, 2015, the Company is subject to the new regulatory risk-based capital rules adopted by the federal banking agencies implementing Basel III. The most significant changes include higher minimum capital requirements, as the minimum Tier I capital ratio increased from 4.0% to 6.0% and the establishment of a new common equity Tier I capital ratio with a minimum level of 4.5%. Additionally, the new rules improve the quality of capital by providing stricter eligibility criteria for regulatory capital instruments and provide for a phase-in, beginning January 1, 2016, of a capital conservation buffer of 2.5% of risk-weighted assets. This buffer provides a requirement to hold common equity Tier 1 capital above the minimum risk-based capital requirements, resulting in an effective common equity Tier I risk-weighted asset minimum ratio of 7% on a fully phased-in basis.

The Basel III Rules also permit banking organizations with less than $15.0 billion in assets to retain, through a one-time election, the existing treatment for accumulated other comprehensive income, which currently does not affect regulatory capital. The Company elected to retain this treatment, which reduces the volatility of regulatory capital levels.

As of September 30, 2015, First Commonwealth and First Commonwealth Bank met all capital adequacy requirements to which they are subject and was considered well-capitalized under the regulatory rules all on a fully phased in basis. To be

58

ITEM 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations (Continued)

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

considered well capitalized, the Company must maintain minimum Total risk-based capital, Tier I risk-based capital, Tier I leverage ratio and Common equity tier I as set forth in the table below:

	Actual				Minimum Capital Required - Basel III Phase-In Schedule				Minimum Capital Required - Basel III Fully Phased-In				Required to be Considered Well Capitalized
	Capital Amount		Ratio		Capital Amount		Ratio		Capital Amount		Ratio		Capital Amount		Ratio
	(dollars in thousands)
Total Capital to Risk Weighted Assets
First Commonwealth Financial Corporation	$	678,234	12.46	%	$	435,319	8.00	%	$	571,357	10.50	%	$	544,149	10.00	%
First Commonwealth Bank	650,874		11.96		435,539		8.00		571,645		10.50		544,424		10.00
Tier I Capital to Risk Weighted Assets
First Commonwealth Financial Corporation	$	625,898	11.50	%	$	326,490	6.00	%	$	462,527	8.50	%	$	435,319	8.00	%
First Commonwealth Bank	598,538		10.99		326,654		6.00		462,760		8.50		435,539		8.00
Tier I Capital to Average Assets
First Commonwealth Financial Corporation	$	625,898	10.13	%	$	247,244	4.00	%	$	247,244	4.00	%	$	309,055	5.00	%
First Commonwealth Bank	598,538		9.70		246,715		4.00		246,715		4.00		308,394		5.00
Common Equity Tier I to Risk Weighted Assets
First Commonwealth Financial Corporation	$	555,898	10.22	%	$	244,867	4.50	%	$	380,905	7.00	%	$	353,697	6.50	%
First Commonwealth Bank	532,774		9.79		244,991		4.50		381,097		7.00		353,876		6.50

On January 27, 2015, First Commonwealth's Board of Directors authorized a $25.0 million common stock repurchase program. As of September 30, 2015, First Commonwealth had repurchased 2,885,020 shares at an average price of $8.70 per share under this program. This program was completed in May of 2015.

On October 28, 2015, First Commonwealth Financial Corporation declared a quarterly dividend of $0.07 per share payable on November 20, 2015 to shareholders of record as of November 9, 2015. The timing and amount of future dividends are at the discretion of First Commonwealth's Board of Directors based upon, among other factors, capital levels, asset quality, liquidity and current and projected earnings.

59

ITEM 3. Quantitative and Qualitative Disclosures About Market Risk

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

Information appearing in Item 2 of this report under the caption “Market Risk” is incorporated by reference in response to this item.

ITEM 4. Controls and Procedures

We carried out an evaluation, under the supervision and with the participation of our management, including our Chief Executive Officer and our Chief Financial Officer, of the effectiveness of the design and operation of our disclosure controls and procedures as of the end of the period covered by this report pursuant to Rule 13a-15 under the Securities Exchange Act of 1934 (the “Exchange Act”). Based upon that evaluation, our Chief Executive Officer and Chief Financial Officer concluded that our disclosure controls and procedures are effective to provide reasonable assurance that the information required to be disclosed in the reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in applicable rules and forms of the Securities and Exchange Commission.

In addition, our management, including our Chief Executive Officer and Chief Financial Officer, also conducted an evaluation of our internal controls over financial reporting to determine whether any changes occurred during the current fiscal quarter that have materially affected, or are reasonably likely to materially affect, our internal controls over financial reporting. No such changes were identified in connection with this evaluation.

60

PART II – OTHER INFORMATION

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

ITEM 1. LEGAL PROCEEDINGS

First Commonwealth and certain of its subsidiaries have been named as defendants in various legal actions arising out of the normal course of business.  In the opinion of management, the ultimate resolution of these lawsuits should not have a material adverse effect on First Commonwealth's business, consolidated financial position or results of operations. It is possible, however, that future developments could result in an unfavorable ultimate outcome for or resolution of any one or more of the lawsuits in which First Commonwealth or its subsidiaries are defendants, which may be material to First Commonwealth's results of operations for a particular quarterly reporting period. Litigation is inherently uncertain, and management cannot make assurances that First Commonwealth will prevail in any of these actions, nor can management reasonably estimate the amount of damages that First Commonwealth might incur.

ITEM 1A. RISK FACTORS

There have been no material changes to the risk factors disclosed in our Annual Report on Form 10-K for the fiscal year ended December 31, 2014.

61

PART II – OTHER INFORMATION

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

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

62

PART II – OTHER INFORMATION

FIRST COMMONWEALTH FINANCIAL CORPORATION AND SUBSIDIARIES

ITEM 6.     EXHIBITS

Exhibit Number	Description	Incorporated by Reference to
31.1	Chief Executive Officer Certification pursuant to Section 302 of the Sarbanes-Oxley Act of 2002	Filed herewith
31.2	Chief Financial Officer Certification pursuant to Section 302 of the Sarbanes-Oxley Act of 2002	Filed herewith
32.1	Chief Executive Officer Certification pursuant to Section 906 of the Sarbanes-Oxley Act of 2002	Filed herewith
32.2	Chief Financial Officer Certification pursuant to Section 906 of the Sarbanes-Oxley Act of 2002	Filed herewith
101	The following materials from First Commonwealth Financial Corporation’s Quarterly Report on Form 10-Q, formatted in XBRL (Extensible Business Reporting Language): (i) the Condensed Consolidated Balance Sheets, (ii) the Condensed Consolidated Statements of Income and Comprehensive Income, (iii) the Condensed Consolidated Statements of Changes in Stockholders’ Equity, (iv) the Condensed Consolidated Statements of Cash Flows, and (v) the Notes to Unaudited Condensed Consolidated Financial Statements.	Filed herewith

63

SIGNATURES

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

FIRST COMMONWEALTH FINANCIAL CORPORATION

(Registrant)

DATED: November 9, 2015	/s/ T. Michael Price
	T. Michael Price President and Chief Executive Officer
DATED: November 9, 2015	/s/ James R. Reske
	James R. Reske Executive Vice President and Chief Financial Officer

64

EX-31.1

EXHIBIT 31.1

CHIEF EXECUTIVE OFFICER CERTIFICATION

PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, T. Michael Price, certify that:

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

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

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

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

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

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

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

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

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

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

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

DATED: November 9, 2015	/s/ T. Michael Price
	T. Michael Price President and Chief Executive Officer

EX-31.2

EXHIBIT 31.2

CHIEF FINANCIAL OFFICER CERTIFICATION

PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, James R. Reske, certify that:

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

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

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

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

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

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

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

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

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

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

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

DATED: November 9, 2015	/s/ James R. Reske
	James R. Reske
	Executive Vice President and Chief Financial Officer

EX-32.1

EXHIBIT 32.1

CERTIFICATION PURSUANT TO SECTION 906 OF THE

SARBANES-OXLEY ACT OF 2002

I, T. Michael Price, of First Commonwealth Financial Corporation (“First Commonwealth”), certify that the Quarterly Report of First Commonwealth on Form 10-Q for the period ended September 30, 2015, fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 and that the information contained in such report fairly presents, in all material respects, the financial condition of First Commonwealth at the end of such period and the results of operations of First Commonwealth for such period.

DATED: November 9, 2015	/s/ T. Michael Price
	T. Michael Price
	President and Chief Executive Officer

EX-32.2

EXHIBIT 32.2

CERTIFICATION PURSUANT TO SECTION 906 OF THE

SARBANES-OXLEY ACT OF 2002

I, James R. Reske, of First Commonwealth Financial Corporation (“First Commonwealth”), certify that the Quarterly Report of First Commonwealth on Form 10-Q for the period ended September 30, 2015, fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 and that the information contained in such report fairly presents, in all material respects, the financial condition of First Commonwealth at the end of such period and the results of operations of First Commonwealth for such period.

DATED: November 9, 2015	/s/ James R. Reske
	James R. Reske
	Executive Vice President and Chief Financial Officer

XML

Commitments and Contingent Liabilities - Additional Information (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Loss Contingencies [Line Items]
Notional Amount Of Performance Standby Letters Of Credit	$ 2,300
Notional Amount Of Commercial Letters Of Credit	0
Notional Amount Of Financial Standby Letters Of Credit	7,765
Financial instrument of credit risk	200	$ 200
Unfunded commitment liability	$ 3,800	$ 3,100

XML

Loans and Allowance for Credit Losses - Credit Risk Profile by Creditworthiness (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014	Sep. 30, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	$ 4,575,735	$ 4,457,308	$ 4,411,481
Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	4,438,816	4,317,182
OAEM [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	55,196	72,370
Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	81,723	63,595
Doubtful [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	0	4,161
Criticized [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	136,919	140,126
Commercial, financial, agricultural and other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	1,126,881	1,052,109
Commercial, financial, agricultural and other [Member] | Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	1,043,458	983,357
Commercial, financial, agricultural and other [Member] | OAEM [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	22,447	32,563
Commercial, financial, agricultural and other [Member] | Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	60,976	32,028
Commercial, financial, agricultural and other [Member] | Doubtful [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	0	4,161
Commercial, financial, agricultural and other [Member] | Criticized [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	83,423	68,752
Real estate construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	179,710	120,785
Real estate construction [Member] | Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	179,229	112,536
Real estate construction [Member] | OAEM [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	450	8,013
Real estate construction [Member] | Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	31	236
Real estate construction [Member] | Doubtful [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	0	0
Real estate construction [Member] | Criticized [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	481	8,249
Residential real estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	1,204,220	1,226,344
Residential real estate [Member] | Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	1,192,888	1,214,920
Residential real estate [Member] | OAEM [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	2,926	2,315
Residential real estate [Member] | Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	8,406	9,109
Residential real estate [Member] | Doubtful [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	0	0
Residential real estate [Member] | Criticized [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	11,332	11,424
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	1,435,954	1,405,256
Commercial Real Estate [Member] | Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	1,394,506	1,353,773
Commercial Real Estate [Member] | OAEM [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	29,373	29,479
Commercial Real Estate [Member] | Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	12,075	22,004
Commercial Real Estate [Member] | Doubtful [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	0	0
Commercial Real Estate [Member] | Criticized [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	41,448	51,483
Loans to individuals [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	628,970	652,814
Loans to individuals [Member] | Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	628,735	652,596
Loans to individuals [Member] | OAEM [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	0	0
Loans to individuals [Member] | Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	235	218
Loans to individuals [Member] | Doubtful [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	0	0
Loans to individuals [Member] | Criticized [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	$ 235	$ 218

XML

Impairment of Investment Securities - Additional Information (Detail)	3 Months Ended		9 Months Ended
	Sep. 30, 2015 USD ($) Security Bank	Sep. 30, 2014 USD ($)	Sep. 30, 2015 USD ($) Security Bank	Sep. 30, 2014 USD ($)	Dec. 31, 2014 USD ($)
Schedule of Trading Securities and Other Trading Assets [Line Items]
Other than temporary impairment charges recognized			$ 0	$ 0
Amortized Cost	$ 1,045,850,000		1,045,850,000		$ 1,317,318,000
Securities available for sale, at fair value	$ 1,050,733,000		$ 1,050,733,000		1,309,819,000
Number of banks and other financial institutions comprising the security | Bank	275		275
Number Of Pooled Securities with No Senior Class | Security			3
Number of securities with no excess subordination | Security	4		4
Number of Securities with Excess Subordination | Security	5		5
Coupon rate			7.00%
Probability of default			100.00%
Projected recovery rate			0.00%
Probability percentage assigned to default bank subject to market indicators			10.00%
Probability percentage assigned to default bank			100.00%
Federal Home Loan Bank Stock	$ 53,976,000		$ 53,976,000		44,545,000
Investment Securities in Unrealized Loss Position, Qualitative Disclosure, Number of Positions, Total	45		45
Minimum [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Subordinated tranches range	7.00%		7.00%
Total principal amount of the respective securities	5.00%		5.00%
Excess subordination as a percentage of current performing collateral			10.00%
Probabilities for performing collateral range			0.33%
Excess present value of future cash flows over our current book value			21.00%
Maximum [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Subordinated tranches range	35.00%		35.00%
Excess subordination as a percentage of current performing collateral			84.00%
Probabilities for performing collateral range			75.00%
Excess present value of future cash flows over our current book value			136.00%
Pooled Trust Preferred Collateralized Debt Obligations [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Percent of Unrealized Losses	59.00%		59.00%
Amortized Cost	$ 42,000,000		$ 42,000,000		41,926,000
Securities available for sale, at fair value	$ 35,779,000		35,779,000		28,999,000
Trust preferred collateralized debt obligations [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Other than temporary impairment charges recognized			$ 0	0
Percentage of Current Performing Collateral	0.00%		0.00%
Corporate Debt Securities [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Amortized Cost	$ 1,895,000		$ 1,895,000		6,682,000
Securities available for sale, at fair value	2,333,000		2,333,000		7,255,000
Pooled Trust Preferred Securities [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Other than temporary impairment charges recognized	0	$ 0
Equity Securities [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Other than temporary impairment charges recognized	0	0
Continuous Unrealized Loss Position, Fair Value	0	$ 0	0	$ 0
Amortized Cost	1,920,000		1,920,000		1,420,000
Securities available for sale, at fair value	1,920,000		1,920,000		1,420,000
Asset Size and Coupon Rate 1 [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Collateral issued by financial institutions	15,000,000,000		$ 15,000,000,000
Coupon rate			7.00%
Prepayment rate			100.00%
Asset Size and Coupon Rate 2 [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Coupon rate			7.00%
Fair Value Inputs , Prepayment Rate Year One and Two			40.00%
Fair Value Inputs , Prepayment Rate After Year Two			2.00%
Asset Size and Coupon Rate 3 [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Prepayment rate			5.00%
Asset Size and Coupon Rate 3 [Member] | Minimum [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Collateral issued by financial institutions	2,000,000,000		$ 2,000,000,000
Asset Size and Coupon Rate 3 [Member] | Maximum [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Collateral issued by financial institutions	15,000,000,000		15,000,000,000
Asset Size and Coupon Rate 4 [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Collateral issued by financial institutions	$ 2,000,000,000		$ 2,000,000,000
Coupon rate			10.00%
Prepayment rate			5.00%
Asset Size and Coupon Rate 5 [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Prepayment rate			0.00%
Obligations of U.S. Government-Sponsored Enterprises - Other Government-Sponsored Enterprises [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Percent of Unrealized Losses	40.00%		40.00%
Reported Value Measurement [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Securities available for sale, at fair value	$ 1,050,733,000		$ 1,050,733,000		1,309,819,000
Federal Home Loan Bank Stock	$ 53,976,000		$ 53,976,000		$ 44,545,000

XML

Derivatives - Schedule of Changes in Fair Value of Derivative Assets and Liabilities (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	$ (783)	$ (108)	$ (420)	$ 175
Derivative Instruments Designated As Hedging Instruments Interest Income	565	29	1,503	29
Derivative, Net Hedge Ineffectiveness Gain (Loss)	$ 0	$ 0	$ 21	$ 0

XML

Loans and Allowance for Credit Losses - Age Analysis of Past Due Loans by Segment (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014	Sep. 30, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual	$ 28,803	$ 42,667
Total past due and nonaccrual	43,339	61,449
Current	4,532,396	4,395,859
Total	4,575,735	4,457,308	$ 4,411,481
Commercial, financial, agricultural and other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual	17,334	27,007
Total past due and nonaccrual	21,359	30,300
Current	1,105,522	1,021,809
Total	1,126,881	1,052,109
Real estate construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual	31	236
Total past due and nonaccrual	31	237
Current	179,679	120,548
Total	179,710	120,785
Residential real estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual	6,563	7,900
Total past due and nonaccrual	11,930	15,434
Current	1,192,290	1,210,910
Total	1,204,220	1,226,344
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual	4,640	7,306
Total past due and nonaccrual	5,448	9,225
Current	1,430,506	1,396,031
Total	1,435,954	1,405,256
Loans to individuals [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual	235	218
Total past due and nonaccrual	4,571	6,253
Current	624,399	646,561
Total	628,970	652,814
Financing Receivables, 30 to 59 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due and nonaccrual	10,038	13,473
Financing Receivables, 30 to 59 Days Past Due [Member] | Commercial, financial, agricultural and other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due and nonaccrual	3,817	2,816
Financing Receivables, 30 to 59 Days Past Due [Member] | Real estate construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due and nonaccrual	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] | Residential real estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due and nonaccrual	3,562	5,162
Financing Receivables, 30 to 59 Days Past Due [Member] | Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due and nonaccrual	35	1,797
Financing Receivables, 30 to 59 Days Past Due [Member] | Loans to individuals [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due and nonaccrual	2,624	3,698
Financing Receivables, 60 to 89 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due and nonaccrual	2,444	2,690
Financing Receivables, 60 to 89 Days Past Due [Member] | Commercial, financial, agricultural and other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due and nonaccrual	59	213
Financing Receivables, 60 to 89 Days Past Due [Member] | Real estate construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due and nonaccrual	0	1
Financing Receivables, 60 to 89 Days Past Due [Member] | Residential real estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due and nonaccrual	1,187	1,295
Financing Receivables, 60 to 89 Days Past Due [Member] | Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due and nonaccrual	442	122
Financing Receivables, 60 to 89 Days Past Due [Member] | Loans to individuals [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due and nonaccrual	756	1,059
Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due and nonaccrual	2,054	2,619
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Commercial, financial, agricultural and other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due and nonaccrual	149	264
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Real estate construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due and nonaccrual	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Residential real estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due and nonaccrual	618	1,077
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due and nonaccrual	331	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Loans to individuals [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due and nonaccrual	$ 956	$ 1,278

XML

Investment Securities Held to Maturity Securities by Type (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity Securities	$ 154,035
Held-to-maturity Securities, Accumulated Unrecognized Holding Gain	851
Held-to-maturity Securities, Accumulated Unrecognized Holding Loss	(49)
Securities held to maturity, fair value	154,837	$ 0
US Government Agencies Residential Mortgage-backed Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity Securities	4,806
Held-to-maturity Securities, Accumulated Unrecognized Holding Gain	24
Held-to-maturity Securities, Accumulated Unrecognized Holding Loss	0
Securities held to maturity, fair value	4,830
Residential Mortgage Backed Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity Securities	116,065
Held-to-maturity Securities, Accumulated Unrecognized Holding Gain	520
Held-to-maturity Securities, Accumulated Unrecognized Holding Loss	(6)
Securities held to maturity, fair value	116,579
Obligations of U.S. Government-Sponsored Enterprises - Mortgage-Backed Securities - Commercial [Member]
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity Securities	15,299
Held-to-maturity Securities, Accumulated Unrecognized Holding Gain	176
Held-to-maturity Securities, Accumulated Unrecognized Holding Loss	0
Securities held to maturity, fair value	15,475
Obligations of States and Political Subdivisions [Member]
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity Securities	17,865
Held-to-maturity Securities, Accumulated Unrecognized Holding Gain	131
Held-to-maturity Securities, Accumulated Unrecognized Holding Loss	(43)
Securities held to maturity, fair value	$ 17,953

XML

Supplemental Comprehensive Income Disclosures (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Supplemental Comprehensive Income Disclosures [Abstract]
Unrealized holding gains (losses) on securities arising during the period	$ 6,344	$ (5,544)	$ 12,510	$ 16,863
Reclassification adjustment for gains on securities included in net income	0	(48)	(125)	(50)
Total unrealized gains (losses) on securities	6,344	(5,592)	12,385	16,813
Unrealized holding gains (losses) on derivatives arising from during the period	1,504	(27)	2,172	(27)
Unrealized holding gains (losses) on securities arising during the period	(2,221)	1,938	(4,377)	(5,902)
Reclassification adjustment for gains on derivatives included in net income, before Tax	0	1	(6)	1
Total unrealized gain on derivatives	1,504	(26)	2,166	(26)
Reclassification adjustment for gains on securities included in net income	0	17	44	18
Total other comprehensive (loss) income	7,848	(5,618)	14,551	16,787
Other Comprehensive Income (Loss), Available-for-sale Securities, Tax	(2,221)	1,955	(4,333)	(5,884)
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Tax	(526)	9	(760)	9
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Tax	0	0	2	0
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax, Total	(526)	9	(758)	9
Other Comprehensive Income (Loss), Tax	(2,747)	1,964	(5,091)	(5,875)
Other comprehensive income (loss) before reclassification adjustment	4,123	(3,606)	8,133	10,961
Total unrealized (losses) gains on securities	4,123	(3,637)	8,052	10,929
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	978	(18)	1,412	(18)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax	0	(1)	4	(1)
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax, Total	978	(17)	1,408	(17)
Total other comprehensive (loss) income	5,101	(3,654)	9,460	10,912
Reclassification adjustment for gains on securities included in net income	$ 0	$ 31	$ 81	$ 32

XML

Loans and Allowance for Credit Losses - Troubled Debt Restructured Loans and Commitments (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Financing Receivable, Troubled Debt Restructurings [Line Items]
Financing Receivable, Modifications, Recorded Investment	$ 20,607	$ 29,536
Unused lines of Credit [Member]
Financing Receivable, Troubled Debt Restructurings [Line Items]
Loans and Leases Receivable, Impaired, Commitment to Lend	1,162	4,120
Accrual Loans [Member] [Member]
Financing Receivable, Troubled Debt Restructurings [Line Items]
Financing Receivable, Modifications, Recorded Investment	12,024	12,584
Non Accrual Loans [Member]
Financing Receivable, Troubled Debt Restructurings [Line Items]
Financing Receivable, Modifications, Recorded Investment	$ 8,583	$ 16,952

XML

Goodwill - Additional Information (Detail) - USD ($)	9 Months Ended	12 Months Ended
	Sep. 30, 2015	Dec. 31, 2014
Goodwill Disclosure [Abstract]
Goodwill	$ 161,429,000	$ 161,429,000
Impairment charges on goodwill	$ 0	$ 0

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Earnings per Share (Tables)

9 Months Ended

Sep. 30, 2015

Earnings Per Share [Abstract]

Composition of Weighted-Average Common Shares (Denominator) Used in Basic and Diluted Earnings Per Share

The following table summarizes the composition of the weighted-average common shares (denominator) used in the basic and diluted earnings per share computations:

	For the Three Months Ended September 30,				For the Nine Months Ended September 30,
	2015		2014		2015		2014
Weighted average common shares issued	105,563,455		105,563,455		105,563,455		105,563,455
Average treasury stock shares	(16,602,502	)	(12,836,692	)	(15,858,433	)	(11,773,187	)
Average unearned nonvested shares	(153,659	)	(159,260	)	(177,462	)	(162,335	)
Weighted average common shares and common stock equivalents used to calculate basic earnings per share	88,807,294		92,567,503		89,527,560		93,627,933
Additional common stock equivalents (nonvested stock) used to calculate diluted earnings per share	6,452		11,198		3,938		4,850
Additional common stock equivalents (stock options) used to calculate diluted earnings per share	—		—		—		—
Weighted average common shares and common stock equivalents used to calculate diluted earnings per share	88,813,746		92,578,701		89,531,498		93,632,783

Common Stock Equivalents Not Included in Computation of Diluted Earnings Per Share

The following table shows the number of shares and the price per share related to common stock equivalents that were not included in the computation of diluted earnings per share for the nine months endedSeptember 30 because to do so would have been antidilutive.

	2015					2014
		Price Range					Price Range
	Shares	From		To		Shares	From		To
Stock Options	—	$	—	$	—	15,000	$	14.55	$	14.55
Restricted Stock	121,091	5.26		9.84		94,929	4.41		9.18

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Impairment of Investment Securities - Pooled Trust Preferred Collateralized Debt Obligations (Detail) $ in Thousands	9 Months Ended
	Sep. 30, 2015 USD ($) Bank	Dec. 31, 2014 USD ($)
Impairment Of Investment Securities [Line Items]
Securities available for sale, at fair value	$ 1,050,733	$ 1,309,819
Unrealized Gain (Loss)	12,186	$ 24,420
Pooled Trust Preferred Collateralized Debt Obligations [Member]
Impairment Of Investment Securities [Line Items]
Book Value	42,000
Securities available for sale, at fair value	35,779
Unrealized Gain (Loss)	(6,221)
Pooled Trust Preferred Collateralized Debt Obligations [Member] | Mezzanine [Member] | Pre TSL IV [Member]
Impairment Of Investment Securities [Line Items]
Book Value	1,830
Securities available for sale, at fair value	1,337
Unrealized Gain (Loss)	$ (493)
Debt Instrument, Credit Rating	B1/BB
Number of Banks (in banks) | Bank	6
Deferrals and Defaults as a % of Current Collateral	18.05%
Excess Subordination as a % of Current Performing Collateral	57.96%
Pooled Trust Preferred Collateralized Debt Obligations [Member] | Mezzanine [Member] | Pre TSL VII [Member]
Impairment Of Investment Securities [Line Items]
Book Value	$ 2,905
Securities available for sale, at fair value	3,494
Unrealized Gain (Loss)	$ 589
Debt Instrument, Credit Rating	Ca/-
Number of Banks (in banks) | Bank	14
Deferrals and Defaults as a % of Current Collateral	49.68%
Excess Subordination as a % of Current Performing Collateral	0.00%
Pooled Trust Preferred Collateralized Debt Obligations [Member] | Mezzanine [Member] | Pre TSL VIII [Member]
Impairment Of Investment Securities [Line Items]
Book Value	$ 2,000
Securities available for sale, at fair value	1,865
Unrealized Gain (Loss)	$ (135)
Debt Instrument, Credit Rating	C/C
Number of Banks (in banks) | Bank	29
Deferrals and Defaults as a % of Current Collateral	56.74%
Excess Subordination as a % of Current Performing Collateral	0.00%
Pooled Trust Preferred Collateralized Debt Obligations [Member] | Mezzanine [Member] | Pre TSL IX [Member]
Impairment Of Investment Securities [Line Items]
Book Value	$ 2,367
Securities available for sale, at fair value	1,811
Unrealized Gain (Loss)	$ (556)
Debt Instrument, Credit Rating	B1/C
Number of Banks (in banks) | Bank	38
Deferrals and Defaults as a % of Current Collateral	29.80%
Excess Subordination as a % of Current Performing Collateral	10.04%
Pooled Trust Preferred Collateralized Debt Obligations [Member] | Mezzanine [Member] | Pre TSL X [Member]
Impairment Of Investment Securities [Line Items]
Book Value	$ 1,583
Securities available for sale, at fair value	1,921
Unrealized Gain (Loss)	$ 338
Debt Instrument, Credit Rating	Caa1/C
Number of Banks (in banks) | Bank	43
Deferrals and Defaults as a % of Current Collateral	30.66%
Excess Subordination as a % of Current Performing Collateral	0.00%
Pooled Trust Preferred Collateralized Debt Obligations [Member] | Mezzanine [Member] | Pre TSL XII [Member]
Impairment Of Investment Securities [Line Items]
Book Value	$ 5,643
Securities available for sale, at fair value	4,598
Unrealized Gain (Loss)	$ (1,045)
Debt Instrument, Credit Rating	B3/C
Number of Banks (in banks) | Bank	66
Deferrals and Defaults as a % of Current Collateral	23.07%
Excess Subordination as a % of Current Performing Collateral	0.00%
Pooled Trust Preferred Collateralized Debt Obligations [Member] | Mezzanine [Member] | Pre TSL XIII [Member]
Impairment Of Investment Securities [Line Items]
Book Value	$ 12,646
Securities available for sale, at fair value	10,704
Unrealized Gain (Loss)	$ (1,942)
Debt Instrument, Credit Rating	B3/C
Number of Banks (in banks) | Bank	56
Deferrals and Defaults as a % of Current Collateral	12.05%
Excess Subordination as a % of Current Performing Collateral	26.32%
Pooled Trust Preferred Collateralized Debt Obligations [Member] | Mezzanine [Member] | Pre TSL XIV [Member]
Impairment Of Investment Securities [Line Items]
Book Value	$ 12,818
Securities available for sale, at fair value	9,752
Unrealized Gain (Loss)	$ (3,066)
Debt Instrument, Credit Rating	Caa1/CC
Number of Banks (in banks) | Bank	56
Deferrals and Defaults as a % of Current Collateral	19.72%
Excess Subordination as a % of Current Performing Collateral	43.57%
Pooled Trust Preferred Collateralized Debt Obligations [Member] | Mezzanine [Member] | MMCap I [Member]
Impairment Of Investment Securities [Line Items]
Book Value	$ 208
Securities available for sale, at fair value	297
Unrealized Gain (Loss)	$ 89
Debt Instrument, Credit Rating	Ca/C
Number of Banks (in banks) | Bank	8
Deferrals and Defaults as a % of Current Collateral	58.11%
Excess Subordination as a % of Current Performing Collateral	84.08%

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Investment Securities - Amortized Cost and Estimated Fair Value of Debt Securities Available for Sale (Parenthetical) (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Investment Securities [Line Items]
Amortized Cost	$ 1,045,850	$ 1,317,318
Securities available for sale, at fair value	1,050,733	1,309,819
US Government Agencies Residential Mortgage-backed Securities [Member]
Investment Securities [Line Items]
Amortized Cost	20,902	23,344
Securities available for sale, at fair value	23,281	$ 25,936
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Investment Securities [Line Items]
Amortized Cost	816,200
Securities available for sale, at fair value	$ 824,200

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Earnings per Share - Common Stock Equivalents Not Included in Computation of Diluted Earnings Per Share (Detail) - $ / shares	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	0	15,000
Restricted Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	121,091	94,929
Minimum [Member] | Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Net Income, Per Outstanding Unit, Amount	$ 0.00	$ 14.55
Minimum [Member] | Restricted Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Net Income, Per Outstanding Unit, Amount	5.26	4.41
Maximum [Member] | Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Net Income, Per Outstanding Unit, Amount	0.00	14.55
Maximum [Member] | Restricted Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Net Income, Per Outstanding Unit, Amount	$ 9.84	$ 9.18

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Loans and Allowance for Credit Losses - Outstanding Balances of Loan (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014	Sep. 30, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	$ 4,575,735	$ 4,457,308	$ 4,411,481
Commercial, financial, agricultural and other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	1,126,881	1,052,109	1,071,531
Real estate construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	179,710	120,785	115,788
Residential real estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	1,204,220	1,226,344	1,234,842
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	1,435,954	1,405,256	1,345,302
Loans to individuals [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	$ 628,970	$ 652,814	$ 644,018

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Fair Values of Assets and Liabilities - Carrying Amounts and Fair Values of Financial Instruments (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Carrying Amount [Member]
Fair Value Measurements Of Financial Instruments [Line Items]
Cash and due from banks	$ 69,235	$ 72,276
Interest-bearing deposits	3,529	2,262
Securities available for sale, at fair value	1,050,733	1,309,819
Held-to-maturity Securities	154,035
Other investments	53,976	44,545
Loans Held for sale, Amount	4,986	2,502
Loans and Leases Receivable, Net of Deferred Income	4,575,735	4,457,308
Deposits	4,161,490	4,315,511
Short-term borrowings	1,329,794	1,105,876
Subordinated debt	72,167	72,167
Long-term debt	39,052	89,459
Estimate of Fair Value Measurement [Member]
Fair Value Measurements Of Financial Instruments [Line Items]
Cash and due from banks	69,235	72,276
Interest-bearing deposits	3,529	2,262
Securities available for sale, at fair value	1,050,733	1,309,819
Held-to-maturity Securities	154,837
Other investments	53,976	44,545
Loans Held for sale, Amount	4,986	2,502
Loans and Leases Receivable, Net of Deferred Income	4,596,889	4,439,766
Deposits	4,164,660	4,319,997
Short-term borrowings	1,329,920	1,105,867
Subordinated debt	62,227	62,815
Long-term debt	39,704	90,319
Estimate of Fair Value Measurement [Member] | Level 1 [Member]
Fair Value Measurements Of Financial Instruments [Line Items]
Cash and due from banks	69,235	72,276
Interest-bearing deposits	3,529	2,262
Securities available for sale, at fair value	0	0
Held-to-maturity Securities	0
Other investments	0	0
Loans Held for sale, Amount	0	0
Loans and Leases Receivable, Net of Deferred Income	0	0
Deposits	0	0
Short-term borrowings	0	0
Subordinated debt	0	0
Long-term debt	0	0
Estimate of Fair Value Measurement [Member] | Level 2 [Member]
Fair Value Measurements Of Financial Instruments [Line Items]
Cash and due from banks	0	0
Interest-bearing deposits	0	0
Securities available for sale, at fair value	1,013,034	1,279,400
Held-to-maturity Securities	154,837
Other investments	53,976	44,545
Loans Held for sale, Amount	4,986	2,502
Loans and Leases Receivable, Net of Deferred Income	26,916	34,864
Deposits	4,164,660	4,319,997
Short-term borrowings	1,329,920	1,105,867
Subordinated debt	0	0
Long-term debt	39,704	90,319
Estimate of Fair Value Measurement [Member] | Level 3 [Member]
Fair Value Measurements Of Financial Instruments [Line Items]
Cash and due from banks	0	0
Interest-bearing deposits	0	0
Securities available for sale, at fair value	37,699	30,419
Held-to-maturity Securities	0
Other investments	0	0
Loans Held for sale, Amount	0	0
Loans and Leases Receivable, Net of Deferred Income	4,569,973	4,404,902
Deposits	0	0
Short-term borrowings	0	0
Subordinated debt	62,227	62,815
Long-term debt	$ 0	$ 0

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Fair Values of Assets and Liabilities - Quantitative Inputs and Assumptions Used in Level 3 Fair Value Measurements (Detail) - USD ($)		9 Months Ended
		Sep. 30, 2015	Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value		$ 1,050,733,000	$ 1,309,819,000
Assets		$ 1,125,998,000	1,368,052,000
Pooled Trust Preferred Collateralized Debt Obligations [Member] | Minimum [Member] | Discount rates [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Weighted average rate	[1]	5.25%
Pooled Trust Preferred Collateralized Debt Obligations [Member] | Maximum [Member] | Discount rates [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Weighted average rate	[1]	12.00%
Pooled Trust Preferred Collateralized Debt Obligations [Member] | Discounted Cash Flow [Member] | Minimum [Member] | Probability of default [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Weighted average rate		0.00%
Pooled Trust Preferred Collateralized Debt Obligations [Member] | Discounted Cash Flow [Member] | Minimum [Member] | Prepayment rates [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Weighted average rate		0.00%
Pooled Trust Preferred Collateralized Debt Obligations [Member] | Discounted Cash Flow [Member] | Maximum [Member] | Probability of default [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Weighted average rate		100.00%
Pooled Trust Preferred Collateralized Debt Obligations [Member] | Discounted Cash Flow [Member] | Maximum [Member] | Prepayment rates [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Weighted average rate		73.52%
Pooled Trust Preferred Collateralized Debt Obligations [Member] | Discounted Cash Flow [Member] | Weighted average [Member] | Probability of default [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Weighted average rate		13.72%
Pooled Trust Preferred Collateralized Debt Obligations [Member] | Discounted Cash Flow [Member] | Weighted average [Member] | Prepayment rates [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Weighted average rate		5.09%
Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value		$ 1,920,000	1,420,000
Impaired Loans [Member] | Discounted Cash Flow [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets		$ 520,000
Impaired Loans [Member] | Discounted Cash Flow [Member] | Weighted average [Member] | Discount rates [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Weighted average rate		1.90%
Impaired Loans [Member] | Reserve Study [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets		$ 2,903,000
Impaired Loans [Member] | Reserve Study [Member] | NGL per gallon [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Inputs Monetary	[2]
Impaired Loans [Member] | Reserve Study [Member] | Minimum [Member] | Gas per MCF [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Inputs Monetary	[2]	$ 2.71
Impaired Loans [Member] | Reserve Study [Member] | Minimum [Member] | Oil per BBL/d [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Inputs Monetary	[2]	55.00
Impaired Loans [Member] | Reserve Study [Member] | Maximum [Member] | Gas per MCF [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Inputs Monetary	[2]	3.48
Impaired Loans [Member] | Reserve Study [Member] | Maximum [Member] | Oil per BBL/d [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Inputs Monetary	[2]	$ 90.00
Impaired Loans [Member] | Reserve Study [Member] | Weighted average [Member] | Discount rates [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Weighted average rate		10.00%
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value		$ 37,699,000	30,419,000
Assets		37,699,000	30,419,000
Level 3 [Member] | Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value		1,920,000	1,420,000
Pooled Trust Preferred Collateralized Debt Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value		35,779,000	28,999,000
Pooled Trust Preferred Collateralized Debt Obligations [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value			28,999,000
Pooled Trust Preferred Collateralized Debt Obligations [Member] | Level 3 [Member] | Pooled Trust Preferred Collateralized Debt Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value		35,779,000
Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Real Estate Owned Assets Fair Value		12,394,000	7,981,000
Assets		48,966,000	53,771,000
Fair Value, Measurements, Nonrecurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Real Estate Owned Assets Fair Value		8,000	153,000
Assets		9,664,000	$ 11,079,000
Fair Value, Measurements, Nonrecurring [Member] | Level 3 [Member] | Other Real Estate Owned [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Real Estate Owned Assets Fair Value		$ 8,000

[1] incorporates spread over risk free rate related primarily to credit quality and illiquidity of securities.

[2] unobservable inputs are defined as follows: MCF - million cubic feet; BBL/d - barrels per day.

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Other Investments - Additional Information (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Other Investments Disclosure [Abstract]
Other investments	$ 53,976	$ 44,545

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Basis of Presentation

9 Months Ended

Sep. 30, 2015

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Presentation

Basis of Presentation

The accounting and reporting policies of First Commonwealth Financial Corporation and its subsidiaries (“First Commonwealth” or the “Company”) conform with generally accepted accounting principles in the United States of America (“GAAP”). The preparation of financial statements in conformity with GAAP requires management to make estimates, assumptions and judgments that affect the amounts reported in the financial statements and accompanying notes. Actual realized amounts could differ from those estimates. In the opinion of management, the unaudited interim condensed consolidated financial statements include all adjustments (consisting of only normal recurring adjustments) necessary for a fair presentation of First Commonwealth’s financial position, results of operations, comprehensive income, cash flows and changes in shareholders’ equity as of and for the periods presented.

The results of operations for the nine months endedSeptember 30, 2015 are not necessarily indicative of the results that may be expected for the full year of 2015. These interim financial statements should be read in conjunction with First Commonwealth’s 2014 Annual Report on Form 10-K.

For purposes of reporting cash flows, cash and cash equivalents include cash on hand, amounts due from banks, federal funds sold and interest-bearing bank deposits. Generally, federal funds are sold for one-day periods.

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Fair Values of Assets and Liabilities - Schedule of Changes in Level 3 Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning of period	$ 37,441	$ 29,574	$ 30,419	$ 24,943
Total gains or losses included in earnings	0	0	105	77
Total gains or losses included in other comprehensive income	258	1,470	7,729	7,266
Purchases	0	0	500	0
Issuances	0	0	0	0
Sales	0	0	0	(3,112)
Settlements	0	168	(1,054)	(1,333)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3	0	0	0	3,035
Balance, end of period	37,699	30,876	37,699	30,876
Pooled Trust Preferred Collateralized Debt Obligations [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning of period	35,521	28,154	28,999	23,523
Total gains or losses included in earnings	0	0	105	0
Total gains or losses included in other comprehensive income	258	1,470	7,729	7,266
Purchases	0	0	0	0
Issuances	0	0	0	0
Sales	0	0	0	0
Settlements	0	168	(1,054)	(1,333)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3	0	0	0	0
Balance, end of period	35,779	29,456	35,779	29,456
Equity Securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning of period	1,920	1,420	1,420	1,420
Total gains or losses included in earnings	0	0	0	0
Total gains or losses included in other comprehensive income	0	0	0	0
Purchases	0	0	500	0
Issuances	0	0	0	0
Sales	0	0	0	0
Settlements	0	0	0	0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3	0	0	0	0
Balance, end of period	$ 1,920	1,420	$ 1,920	1,420
Loans Held For Sale [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning of period		0		0
Total gains or losses included in earnings		0		77
Total gains or losses included in other comprehensive income		0		0
Purchases		0		0
Issuances		0		0
Sales		0		(3,112)
Settlements		0		0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3		0		3,035
Balance, end of period		$ 0		$ 0

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Investment Securities - Proceeds from Sale, Gross Gains (Losses) Realized on Sales, Maturities and Other-Than-Temporary Impairment Charges Related to Securities Available for Sale (Detail) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Investments, Debt and Equity Securities [Abstract]
Proceeds from Sale of Available-for-sale Securities	$ 0	$ 132,868
Sales Transactions:
Gross gains	0	489
Gross losses	0	(441)
Available-for-sale Securities, Gross Realized Gain (Loss), Excluding Other than Temporary Impairments	0	48
Maturities and impairment
Gross Gains	125	2
Gross Losses	0	0
Other Than Temporary Impairment	0	0
Gain Losses Maturities And Impairment	125	2
Net gains and impairment	$ 125	$ 50

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Impairment of Investment Securities (Tables)

9 Months Ended

Sep. 30, 2015

Impairment of Investment Securities Disclosure [Abstract]

Schedule of Unrealized Losses and Estimated Fair Values

The following table presents the gross unrealized losses and estimated fair values at September 30, 2015 for both available for sale and held to maturity securities by investment category and time frame for which securities have been in a continuous unrealized loss position:

	Less Than 12 Months						12 Months or More					Total
	Estimated Fair Value		Gross Unrealized Losses				Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses
	(dollars in thousands)
Obligations of U.S. Government Agencies:
Mortgage-Backed Securities – Residential	$	2,240	$	—		(a)	$	—	$	—		$	2,240	$	—
Obligations of U.S. Government-Sponsored Enterprises:
Mortgage-Backed Securities – Residential	78,300		(242		)		277,333		(4,610		)	355,633		(4,852		)
Other Government-Sponsored Enterprises	10,091		(9		)		91,570		(82		)	101,661		(91		)
Obligations of States and Political Subdivisions	7,123		(55		)		—		—			7,123		(55		)
Pooled Trust Preferred Collateralized Debt Obligations	—		—				30,068		(7,237		)	30,068		(7,237		)
Total Securities	$	97,754	$	(306	)		$	398,971	$	(11,929	)	$	496,725	$	(12,235	)

(a) less than $1 thousand.

The following table presents the gross unrealized losses and estimated fair values at December 31, 2014 by investment category and time frame for which securities have been in a continuous unrealized loss position:

	Less Than 12 Months					12 Months or More					Total
	Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses
	(dollars in thousands)
Obligations of U.S. Government Agencies:
Mortgage-Backed Securities – Residential	$	2,318	$	(3	)	$	—	$	—		$	2,318	$	(3	)
Obligations of U.S. Government-Sponsored Enterprises:
Mortgage-Backed Securities – Residential	111,646		(419		)	368,706		(9,411		)	480,352		(9,830		)
Other Government-Sponsored Enterprises	112,473		(229		)	130,401		(1,079		)	242,874		(1,308		)
Obligation of States and Political Subdivisions	3,146		(43		)	—		—			3,146		(43		)
Pooled Trust Preferred Collateralized Debt Obligations	—		—			24,356		(13,236		)	24,356		(13,236		)
Total Securities	$	229,583	$	(694	)	$	523,463	$	(23,726	)	$	753,046	$	(24,420	)

Pooled Trust Preferred Collateralized Debt Obligations

The following table provides information related to our pooled trust preferred collateralized debt obligations as of September 30, 2015:

Deal	Class	Book Value		Estimated Fair Value		Unrealized Gain (Loss)			Moody’s/ Fitch Ratings	Number of Banks	Deferrals and Defaults as a % of Current Collateral		Excess Subordination as a % of Current Performing Collateral
(dollars in thousands)
Pre TSL IV	Mezzanine	$	1,830	$	1,337	$	(493	)	B1/BB	6	18.05	%	57.96	%
Pre TSL VII	Mezzanine	2,905		3,494		589			Ca/-	14	49.68		—
Pre TSL VIII	Mezzanine	2,000		1,865		(135		)	C/C	29	56.74		—
Pre TSL IX	Mezzanine	2,367		1,811		(556		)	B1/C	38	29.80		10.04
Pre TSL X	Mezzanine	1,583		1,921		338			Caa1/C	43	30.66		—
Pre TSL XII	Mezzanine	5,643		4,598		(1,045		)	B3/C	66	23.07		—
Pre TSL XIII	Mezzanine	12,646		10,704		(1,942		)	B3/C	56	12.05		26.32
Pre TSL XIV	Mezzanine	12,818		9,752		(3,066		)	Caa1/CC	56	19.72		43.57
MMCap I	Mezzanine	208		297		89			Ca/C	8	58.11		84.08
Total		$	42,000	$	35,779	$	(6,221	)

Cumulative Roll Forward of Credit Losses Recognized in Earnings for Debt Securities held and not Intended to be Sold

The following table provides a cumulative roll forward of credit losses recognized in earnings for debt securities held and not intended to be sold:

	For the Three Months Ended September 30,						For the Nine Months Ended September 30,
	2015			2014			2015			2014
	(dollars in thousands)
Balance, beginning (a)	$	25,366		$	26,842		$	26,246		$	27,543
Credit losses on debt securities for which other-than-temporary impairment was not previously recognized	—			—			—			—
Additional credit losses on debt securities for which other-than-temporary impairment was previously recognized	—			—			—			—
Increases in cash flows expected to be collected, recognized over the remaining life of the security (b)	(255		)	(288		)	(917		)	(989		)
Reduction for debt securities called during the period	—			—			(218		)	—
Balance, ending	$	25,111		$	26,554		$	25,111		$	26,554

(a) The beginning balance represents credit related losses included in other-than-temporary impairment charges recognized on debt securities in prior periods.

(b) Represents the increase in cash flows recognized in interest income during the period.

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Investment Securities Maturity of Held-to-Maturity Securities (Tables)

9 Months Ended

Sep. 30, 2015

Schedule of Held-to-maturity Securities [Line Items]

Held-to-maturity Securities [Table Text Block]

Below is an analysis of the amortized cost and fair values of debt securities held to maturity at September 30, 2015. There were no held to maturity securities at December 31, 2014.

	September 30, 2015
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
	(dollars in thousands)
Obligations of U.S. Government Agencies:
Mortgage-Backed Securities – Residential	$	4,806	$	24	$	—		$	4,830
Obligations of U.S. Government-Sponsored Enterprises:
Mortgage-Backed Securities – Residential	$	116,065	$	520	$	(6	)	$	116,579
Mortgage-Backed Securities – Commercial	15,299		176		—			15,475
Obligations of States and Political Subdivisions	17,865		131		(43		)	17,953
Total Securities Held to Maturity	$	154,035	$	851	$	(49	)	$	154,837

Schedule of Held-to-Maturity Securities by Maturity [Table Text Block]

The amortized cost and estimated fair value of debt securities held to maturity at September 30, 2015, by contractual maturity, are shown below. Expected maturities will differ from contractual maturities because borrowers may have the right to call or repay obligations with or without call or prepayment penalties.

	Amortized Cost		Estimated Fair Value
	(dollars in thousands)
Due within 1 year	$	—	$	—
Due after 1 but within 5 years	—		—
Due after 5 but within 10 years	12,210		12,303
Due after 10 years	5,655		5,650
	17,865		17,953
Mortgage-Backed Securities (a)	136,170		136,884
Total Debt Securities	$	154,035	$	154,837

(a) Mortgage Backed Securities include an amortized cost of $4.8 million and a fair value of $4.8 million for Obligations of U.S. Government agencies issued by Ginnie Mae and an amortized cost of $131.4 million and a fair value of $132.1 million for Obligations of U.S. Government-sponsored enterprises issued by Fannie Mae and Freddie Mac.

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Loans and Allowance for Credit Losses - Recorded Investment and Unpaid Principal Balance for Impaired Loans with Associated Allowance (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	$ 27,571		$ 27,571		$ 29,504
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	35,356		35,356		34,398
Impaired Financing Receivable, with Related Allowance, Recorded Investment	13,256		13,256		25,747
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	13,890		13,890		26,517
Related allowance	4,255		4,255		9,461
Recorded investment	40,827		40,827		55,251
Unpaid principal balance	49,246		49,246		60,915
Average recorded investment	8,132	$ 15,634	6,483	$ 13,212
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	33,203	31,077	39,145	37,078
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	110	103	362	344
Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method	30	53	104	140
Impaired Financing Receivable, Average Recorded Investment	41,335	46,711	45,628	50,290
Interest Income Recognized	140	156	466	484
Commercial, financial, agricultural and other [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	10,581		10,581		9,439
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	15,618		15,618		10,937
Impaired Financing Receivable, with Related Allowance, Recorded Investment	12,812		12,812		24,826
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	13,254		13,254		25,583
Related allowance	4,202		4,202		9,304
Average recorded investment	7,700	14,140	6,125	11,944
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	14,215	10,973	19,199	15,209
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	40	39	161	77
Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method	29	48	100	125
Real estate construction [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	31		31		236
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	119		119		476
Impaired Financing Receivable, with Related Allowance, Recorded Investment	0		0		0
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	0		0		0
Related allowance	0		0		0
Average recorded investment	0	0	0	0
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	32	295	102	1,506
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	0	1	0	19
Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method	0	0	0	0
Residential real estate [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	9,778		9,778		10,773
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	11,399		11,399		12,470
Impaired Financing Receivable, with Related Allowance, Recorded Investment	364		364		367
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	556		556		380
Related allowance	20		20		56
Average recorded investment	351	1,406	275	1,178
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	10,748	10,590	10,987	11,047
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	39	38	118	167
Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method	0	3	0	12
Commercial Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	6,885		6,885		8,768
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	7,862		7,862		10,178
Impaired Financing Receivable, with Related Allowance, Recorded Investment	80		80		554
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	80		80		554
Related allowance	33		33		101
Average recorded investment	81	88	83	90
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	7,894	8,873	8,545	9,007
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	26	24	69	78
Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method	1	2	4	3
Loans to individuals [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	296		296		288
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	358		358		337
Impaired Financing Receivable, with Related Allowance, Recorded Investment	0		0		0
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	0		0		0
Related allowance	0		0		$ 0
Average recorded investment	0	0	0	0
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	314	346	312	309
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	5	1	14	3
Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method	$ 0	$ 0	$ 0	$ 0

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Investment Securities - Additional Information (Detail) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Investments, Debt and Equity Securities [Abstract]
Held-to-maturity Securities Pledged as Collateral	$ 16,500
Proceeds from Sale of Available-for-sale Securities	0	$ 132,868
Available-for-sale securities pledged as collateral	$ 480,100		$ 563,200

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Loans and Allowance for Credit Losses (Tables)

9 Months Ended

Sep. 30, 2015

Loans and Leases Receivable Disclosure [Abstract]

Outstanding Balances of Loan

The following table provides outstanding balances related to each of our loan types:

	September 30, 2015		December 31, 2014
	(dollars in thousands)
Commercial, financial, agricultural and other	$	1,126,881	$	1,052,109
Real estate construction	179,710		120,785
Residential real estate	1,204,220		1,226,344
Commercial real estate	1,435,954		1,405,256
Loans to individuals	628,970		652,814
Total loans and leases net of unearned income	$	4,575,735	$	4,457,308

Credit Risk Profile by Creditworthiness

The following tables represent our credit risk profile by creditworthiness:

	September 30, 2015
	Commercial, financial, agricultural and other		Real estate construction		Residential real estate		Commercial real estate		Loans to individuals		Total
	(dollars in thousands)
Pass	$	1,043,458	$	179,229	$	1,192,888	$	1,394,506	$	628,735	$	4,438,816
Non-Pass
OAEM	22,447		450		2,926		29,373		—		55,196
Substandard	60,976		31		8,406		12,075		235		81,723
Doubtful	—		—		—		—		—		—
Total Non-Pass	83,423		481		11,332		41,448		235		136,919
Total	$	1,126,881	$	179,710	$	1,204,220	$	1,435,954	$	628,970	$	4,575,735

	December 31, 2014
	Commercial, financial, agricultural and other		Real estate construction		Residential real estate		Commercial real estate		Loans to individuals		Total
	(dollars in thousands)
Pass	$	983,357	$	112,536	$	1,214,920	$	1,353,773	$	652,596	$	4,317,182
Non-Pass
OAEM	32,563		8,013		2,315		29,479		—		72,370
Substandard	32,028		236		9,109		22,004		218		63,595
Doubtful	4,161		—		—		—		—		4,161
Total Non-Pass	68,752		8,249		11,424		51,483		218		140,126
Total	$	1,052,109	$	120,785	$	1,226,344	$	1,405,256	$	652,814	$	4,457,308

Age Analysis of Past Due Loans by Segment

The following tables delineate the aging analysis of the recorded investments in past due loans as of September 30, 2015 and December 31, 2014. Also included in these tables are loans that are 90 days or more past due and still accruing because they are well-secured and in the process of collection.

	September 30, 2015
	30 - 59 days past due		60 - 89 days past due		90 days and greater and still accruing		Nonaccrual		Total past due and nonaccrual		Current		Total
	(dollars in thousands)
Commercial, financial, agricultural and other	$	3,817	$	59	$	149	$	17,334	$	21,359	$	1,105,522	$	1,126,881
Real estate construction	—		—		—		31		31		179,679		179,710
Residential real estate	3,562		1,187		618		6,563		11,930		1,192,290		1,204,220
Commercial real estate	35		442		331		4,640		5,448		1,430,506		1,435,954
Loans to individuals	2,624		756		956		235		4,571		624,399		628,970
Total	$	10,038	$	2,444	$	2,054	$	28,803	$	43,339	$	4,532,396	$	4,575,735

	December 31, 2014
	30 - 59 days past due		60 - 89 days past due		90 days and greater and still accruing		Nonaccrual		Total past due and nonaccrual		Current		Total
	(dollars in thousands)
Commercial, financial, agricultural and other	$	2,816	$	213	$	264	$	27,007	$	30,300	$	1,021,809	$	1,052,109
Real estate construction	—		1		—		236		237		120,548		120,785
Residential real estate	5,162		1,295		1,077		7,900		15,434		1,210,910		1,226,344
Commercial real estate	1,797		122		—		7,306		9,225		1,396,031		1,405,256
Loans to individuals	3,698		1,059		1,278		218		6,253		646,561		652,814
Total	$	13,473	$	2,690	$	2,619	$	42,667	$	61,449	$	4,395,859	$	4,457,308

Recorded Investment and Unpaid Principal Balance for Impaired Loans with Associated Allowance

The following tables include the recorded investment and unpaid principal balance for impaired loans with the associated allowance amount, if applicable, as of September 30, 2015 and December 31, 2014. Also presented are the average recorded investment in impaired loans and the related amount of interest recognized while the loan was considered impaired. Average balances are calculated using month-end balances of the loans for the period reported and are included in the table below based on their period-end allowance position.

	September 30, 2015						December 31, 2014
	Recorded investment		Unpaid principal balance		Related allowance		Recorded investment		Unpaid principal balance		Related allowance
	(dollars in thousands)
With no related allowance recorded:
Commercial, financial, agricultural and other	$	10,581	$	15,618			$	9,439	$	10,937
Real estate construction	31		119				236		476
Residential real estate	9,778		11,399				10,773		12,470
Commercial real estate	6,885		7,862				8,768		10,178
Loans to individuals	296		358				288		337
Subtotal	27,571		35,356				29,504		34,398
With an allowance recorded:
Commercial, financial, agricultural and other	12,812		13,254		4,202		24,826		25,583		9,304
Real estate construction	—		—		—		—		—		—
Residential real estate	364		556		20		367		380		56
Commercial real estate	80		80		33		554		554		101
Loans to individuals	—		—		—		—		—		—
Subtotal	13,256		13,890		4,255		25,747		26,517		9,461
Total	$	40,827	$	49,246	$	4,255	$	55,251	$	60,915	$	9,461

	For the Nine Months Ended September 30,
	2015				2014
	Average recorded investment		Interest Income Recognized		Average recorded investment		Interest Income Recognized
	(dollars in thousands)
With no related allowance recorded:
Commercial, financial, agricultural and other	$	19,199	$	161	$	15,209	$	77
Real estate construction	102		—		1,506		19
Residential real estate	10,987		118		11,047		167
Commercial real estate	8,545		69		9,007		78
Loans to individuals	312		14		309		3
Subtotal	39,145		362		37,078		344
With an allowance recorded:
Commercial, financial, agricultural and other	6,125		100		11,944		125
Real estate construction	—		—		—		—
Residential real estate	275		—		1,178		12
Commercial real estate	83		4		90		3
Loans to individuals	—		—		—		—
Subtotal	6,483		104		13,212		140
Total	$	45,628	$	466	$	50,290	$	484

	For the Three Months Ended September 30,
	2015				2014
	Average recorded investment		Interest Income Recognized		Average recorded investment		Interest Income Recognized
	(dollars in thousands)
With no related allowance recorded:
Commercial, financial, agricultural and other	$	14,215	$	40	$	10,973	$	39
Real estate construction	32		—		295		1
Residential real estate	10,748		39		10,590		38
Commercial real estate	7,894		26		8,873		24
Loans to individuals	314		5		346		1
Subtotal	33,203		110		31,077		103
With an allowance recorded:
Commercial, financial, agricultural and other	7,700		29		14,140		48
Real estate construction	—		—		—		—
Residential real estate	351		—		1,406		3
Commercial real estate	81		1		88		2
Loans to individuals	—		—		—		—
Subtotal	8,132		30		15,634		53
Total	$	41,335	$	140	$	46,711	$	156

Troubled Debt Restructured Loans and Commitments

The following table provides detail as to the total troubled debt restructured loans and total commitments outstanding on troubled debt restructured loans:

	September 30, 2015		December 31, 2014
	(dollars in thousands)
Troubled debt restructured loans
Accrual status	$	12,024	$	12,584
Nonaccrual status	8,583		16,952
Total	$	20,607	$	29,536
Commitments
Unused lines of credit	$	1,162	$	4,120

Troubled Debt Restructurings is 90 days or more past due

	For the Three Months Ended September 30, 2015
		Type of Modification
	Number of Contracts	Extend Maturity		Modify Rate		Modify Payments		Total Pre-Modification Outstanding Recorded Investment		Post- Modification Outstanding Recorded Investment		Specific Reserve
	(dollars in thousands)
Commercial, financial, agricultural and other	1	$	—	$	—	$	543	$	543	$	525	$	—
Residential real estate	8	$	—	$	—	$	455	$	455	$	455	$	—
Loans to individuals	2	—		—		18		18		16		—
Total	11	$	—	$	—	$	1,016	$	1,016	$	996	$	—

	For the Three Months Ended, September 30, 2014
		Type of Modification
	Number of Contracts	Extend Maturity		Modify Rate		Modify Payments		Total Pre-Modification Outstanding Recorded Investment		Post- Modification Outstanding Recorded Investment		Specific Reserve
	(dollars in thousands)
Residential real estate	24	—		164		1,116		1,280		1,233		2
Loans to individuals	3	—		8		15		23		20		—
Total	27	$	—	$	172	$	1,131	$	1,303	$	1,253	$	2

The following tables provide detail, including specific reserves and reasons for modification, related to loans identified as troubled debt restructurings:

	For the Nine Months Ended September 30, 2015
		Type of Modification
	Number of Contracts	Extend Maturity		Modify Rate		Modify Payments		Total Pre-Modification Outstanding Recorded Investment		Post- Modification Outstanding Recorded Investment		Specific Reserve
	(dollars in thousands)
Commercial, financial, agricultural and other	4	$	1,751	$	—	$	652	$	2,403	$	2,314	$	52
Residential real estate	24	—		296		958		1,254		1,165		—
Commercial real estate	1	—		—		464		464		407		—
Loans to individuals	8	—		61		35		96		77		—
Total	37	$	1,751	$	357	$	2,109	$	4,217	$	3,963	$	52

	For the Nine Months Ended September 30, 2014
		Type of Modification
	Number of Contracts	Extend Maturity		Modify Rate		Modify Payments		Total Pre-Modification Outstanding Recorded Investment		Post- Modification Outstanding Recorded Investment		Specific Reserve
	(dollars in thousands)
Commercial, financial, agricultural and other	2	$	1,505	$	—	$	—	$	1,505	$	1,648	$	27
Residential real estate	44	—		468		1,767		2,235		2,091		22
Commercial real estate	1	—		—		8		8		6		—
Loans to individuals	13	—		81		42		123		101		—
Total	60	$	1,505	$	549	$	1,817	$	3,871	$	3,846	$	49

Troubled Debt Restructuring Identified During Period

	2015			2014
	Number of Contracts	Recorded Investment		Number of Contracts	Recorded Investment
	(dollars in thousands)
Residential real estate	3	$	108	3	$	18
Total	3	$	108	3	$	18

The following table provides information related to restructured loans that were considered to be in default during the three months endedSeptember 30:

	2015			2014
	Number of Contracts	Recorded Investment		Number of Contracts	Recorded Investment
	(dollars in thousands)
Residential real estate	2	$	105	1	$	5
Total	2	$	105	1	$	5

Allowance for Credit Losses

The following tables provide detail related to the allowance for credit losses:

	For the Nine Months Ended September 30, 2015
	Commercial, financial, agricultural and other			Real estate construction			Residential real estate			Commercial real estate			Loans to individuals			Total
	(dollars in thousands)
Allowance for credit losses:
Beginning Balance	$	29,627		$	2,063		$	3,664		$	11,881		$	4,816		$	52,051
Charge-offs	(8,579		)	—			(1,351		)	(1,249		)	(3,283		)	(14,462		)
Recoveries	922			84			417			186			502			2,111
Provision (credit)	5,230			(554		)	(54		)	1,584			2,612			8,818
Ending Balance	$	27,200		$	1,593		$	2,676		$	12,402		$	4,647		$	48,518
Ending balance: individually evaluated for impairment	$	4,202		$	—		$	20		$	33		$	—		$	4,255
Ending balance: collectively evaluated for impairment	22,998			1,593			2,656			12,369			4,647			44,263
Loans:
Ending balance	1,126,881			179,710			1,204,220			1,435,954			628,970			4,575,735
Ending balance: individually evaluated for impairment	22,852			—			6,037			5,706			—			34,595
Ending balance: collectively evaluated for impairment	1,104,029			179,710			1,198,183			1,430,248			628,970			4,541,140

	For the Nine Months Ended September 30, 2014
	Commercial, financial, agricultural and other			Real estate construction			Residential real estate			Commercial real estate			Loans to individuals			Total
	(dollars in thousands)
Allowance for credit losses:
Beginning Balance	$	22,663		$	6,600		$	7,727		$	11,778		$	5,457		$	54,225
Charge-offs	(8,357		)	(296		)	(2,286		)	(1,109		)	(2,581		)	(14,629		)
Recoveries	625			469			420			432			621			2,567
Provision (credit)	4,773			1,331			(407		)	1,453			1,471			8,621
Ending Balance	$	19,704		$	8,104		$	5,454		$	12,554		$	4,968		$	50,784
Ending balance: individually evaluated for impairment	$	4,271		$	—		$	332		$	29		$	—		$	4,632
Ending balance: collectively evaluated for impairment	15,433			8,104			5,122			12,525			4,968			46,152
Loans:
Ending balance	1,071,531			115,788			1,234,842			1,345,302			644,018			4,411,481
Ending balance: individually evaluated for impairment	23,773			199			6,854			6,890			—			37,716
Ending balance: collectively evaluated for impairment	1,047,758			115,589			1,227,988			1,338,412			644,018			4,373,765

	For the Three Months Ended September 30, 2015
	Commercial, financial, agricultural and other			Real estate construction		Residential real estate			Commercial real estate			Loans to individuals			Total
	(dollars in thousands)
Allowance for credit losses:
Beginning Balance	$	23,755		$	1,518	$	2,923		$	12,227		$	4,921		$	45,344
Charge-offs	(639		)	—		(301		)	(561		)	(900		)	(2,401		)
Recoveries	564			—		178			33			179			954
Provision (credit)	3,520			75		(124		)	703			447			4,621
Ending Balance	$	27,200		$	1,593	$	2,676		$	12,402		$	4,647		$	48,518

	For the Three Months Ended, September 30, 2014
	Commercial, financial, agricultural and other			Real estate construction		Residential real estate			Commercial real estate			Loans to individuals			Total
	(dollars in thousands)
Allowance for credit losses:
Beginning Balance	$	21,956		$	5,899	$	6,125		$	11,661		$	5,084		$	50,725
Charge-offs	(498		)	—		(551		)	(812		)	(1,019		)	(2,880		)
Recoveries	204			132		97			177			256			866
Provision (credit)	(1,958		)	2,073		(217		)	1,528			647			2,073
Ending Balance	$	19,704		$	8,104	$	5,454		$	12,554		$	4,968		$	50,784

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Fair Values of Assets and Liabilities (Tables)

9 Months Ended

Sep. 30, 2015

Fair Value Disclosures [Abstract]

Fair Value Inputs, Assets, Quantitative Information

In accordance with ASU 2011-4, the following table provides information related to quantitative inputs and assumptions used in Level 3 fair value measurements.

	Fair Value (dollars in thousands)			Valuation Technique	Unobservable Inputs	Range / (weighted average)
Pooled Trust Preferred Securities	$	35,779		Discounted Cash Flow	Probability of default	0% - 100% (13.72%)
					Prepayment rates	0% - 73.52% (5.09%)
					Discount rates	5.25% - 12.00% (a)
Equities	1,920			Par Value	N/A	N/A
Impaired Loans	2,903		(b)	Reserve study	Discount rate	10.00%
					Gas per MCF	$2.71 - $3.48 (c)
					Oil per BBL/d	$55.00 (c)
	520		(b)	Discounted Cash Flow	Discount Rate	1.90%
Other Real Estate Owned	8			Internal Valuation	N/A	N/A

(a) incorporates spread over risk free rate related primarily to credit quality and illiquidity of securities.

(b) the remainder of impaired loans valued using Level 3 inputs are not included in this disclosure as the values of those loans are based on bankruptcy agreement documentation.

(c) unobservable inputs are defined as follows: MCF - million cubic feet; BBL/d - barrels per day.

Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis

The tables below present the balances of assets and liabilities measured at fair value on a recurring basis:

	September 30, 2015
	Level 1		Level 2		Level 3		Total
	(dollars in thousands)
Obligations of U.S. Government Agencies:
Mortgage-Backed Securities - Residential	$	—	$	23,281	$	—	$	23,281
Obligations of U.S. Government-Sponsored Enterprises:
Mortgage-Backed Securities - Residential	—		824,152		—		824,152
Mortgage-Backed Securities - Commercial	—		38		—		38
Other Government-Sponsored Enterprises	—		135,781		—		135,781
Obligations of States and Political Subdivisions	—		27,449		—		27,449
Corporate Securities	—		2,333		—		2,333
Pooled Trust Preferred Collateralized Debt Obligations	—		—		35,779		35,779
Total Debt Securities	—		1,013,034		35,779		1,048,813
Equities	—		—		1,920		1,920
Total Securities Available for Sale	—		1,013,034		37,699		1,050,733
Other Investments	—		53,976		—		53,976
Loans held for sale	—		4,986		—		4,986
Other Assets(a)	—		16,303		—		16,303
Total Assets	$	—	$	1,088,299	$	37,699	$	1,125,998
Other Liabilities(a)	$	—	$	14,333	$	—	$	14,333
Total Liabilities	$	—	$	14,333	$	—	$	14,333

(a) Hedging and non-hedging interest rate derivatives

	December 31, 2014
	Level 1		Level 2		Level 3		Total
	(dollars in thousands)
Obligations of U.S. Government Agencies:
Mortgage-Backed Securities - Residential	$	—	$	25,936	$	—	$	25,936
Obligations of U.S. Government-Sponsored Enterprises:
Mortgage-Backed Securities - Residential	—		950,881		—		950,881
Mortgage-Backed Securities - Commercial	—		74		—		74
Other Government-Sponsored Enterprises	—		267,877		—		267,877
Obligations of States and Political Subdivisions	—		27,377		—		27,377
Corporate Securities	—		7,255		—		7,255
Pooled Trust Preferred Collateralized Debt Obligations	—		—		28,999		28,999
Total Debt Securities	—		1,279,400		28,999		1,308,399
Equities	—		—		1,420		1,420
Total Securities Available for Sale	—		1,279,400		30,419		1,309,819
Other Investments	—		44,545		—		44,545
Loans Held for Sale	—		2,502		—		2,502
Other Assets(a)	—		11,186		—		11,186
Total Assets	$	—	$	1,337,633	$	30,419	$	1,368,052
Other Liabilities(a)	$	—	$	10,671	$	—	$	10,671
Total Liabilities	$	—	$	10,671	$	—	$	10,671

(a) Hedging and non-hedging interest rate derivatives

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation

For the nine months endedSeptember 30, changes in Level 3 assets and liabilities measured at fair value on a recurring basis are summarized as follows:

	2015
	Pooled Trust Preferred Collateralized Debt Obligations			Equities		Total
	(dollars in thousands)
Balance, beginning of period	$	28,999		$	1,420	$	30,419
Total gains or losses
Included in earnings	105			—		105
Included in other comprehensive income	7,729			—		7,729
Purchases, issuances, sales, and settlements
Purchases	—			500		500
Issuances	—			—		—
Sales	—			—		—
Settlements	(1,054		)	—		(1,054		)
Transfers into Level 3	—			—		—
Balance, end of period	$	35,779		$	1,920	$	37,699

	2014
	Pooled Trust Preferred Collateralized Debt Obligations			Equities		Loans Held for Sale			Total
	(dollars in thousands)
Balance, beginning of period	$	23,523		$	1,420	$	—		$	24,943
Total gains or losses
Included in earnings	—			—		77			77
Included in other comprehensive income	7,266			—		—			7,266
Purchases, issuances, sales, and settlements
Purchases	—			—		—			—
Issuances	—			—		—			—
Sales	—			—		(3,112		)	(3,112		)
Settlements	(1,333		)	—		—			(1,333		)
Transfers into Level 3	—			—		3,035			3,035
Balance, end of period	$	29,456		$	1,420	$	—		$	30,876

	2015
	Pooled Trust Preferred Collateralized Debt Obligations		Equities		Total
	(dollars in thousands)
Balance, beginning of period	$	35,521	$	1,920	$	37,441
Total gains or losses
Included in earnings	—		—		—
Included in other comprehensive income	258		—		258
Purchases, issuances, sales, and settlements
Purchases	—		—		—
Issuances	—		—		—
Sales	—		—		—
Settlements	—		—		—
Transfers into Level 3	—		—		—
Balance, end of period	$	35,779	$	1,920	$	37,699

	2014
	Pooled Trust Preferred Collateralized Debt Obligations			Equities		Loans Held for Sale		Total
	(dollars in thousands)
Balance, beginning of period	$	28,154		$	1,420	$	—	29,574
Total gains or losses
Included in earnings	—			—		—		—
Included in other comprehensive income	1,470			—		—		1,470
Purchases, issuances, sales, and settlements
Purchases	—			—		—		—
Issuances	—			—		—		—
Sales	—			—		—		—
Settlements	(168		)	—		—		(168		)
Transfers into Level 3	—			—		—		—
Balance, end of period	$	29,456		$	1,420	$	—	$	30,876

Schedule of Assets Measured on Non-Recurring Basis

The tables below present the balances of assets measured at fair value on a non-recurring basis at:

	September 30, 2015
	Level 1		Level 2		Level 3		Total
	(dollars in thousands)
Impaired loans	$	—	$	26,916	$	9,656	$	36,572
Other real estate owned	—		12,386		8		12,394
Total Assets	$	—	$	39,302	$	9,664	$	48,966

	December 31, 2014
	Level 1		Level 2		Level 3		Total
	(dollars in thousands)
Impaired loans	$	—	$	34,864	$	10,926	$	45,790
Other real estate owned	—		7,828		153		7,981
Total Assets	$	—	$	42,692	$	11,079	$	53,771

Losses Realized on Assets Measured on Non-Recurring Basis

The following losses were realized on the assets measured on a nonrecurring basis:

	For the Three Months Ended September 30,						For the Nine Months Ended September 30,
	2015			2014			2015			2014
	(dollars in thousands)
Impaired loans	$	(2,838	)	$	456		$	(3,532	)	$	(1,291	)
Other real estate owned	(78		)	(51		)	(1,205		)	(1,109		)
Total losses	$	(2,916	)	$	405		$	(4,737	)	$	(2,400	)

Carrying Amounts and Fair Values of Financial Instruments

The following table presents carrying amounts and fair values of First Commonwealth’s financial instruments:

	September 30, 2015
			Fair Value Measurements Using:
	Carrying Amount		Total		Level 1		Level 2		Level 3
	(dollars in thousands)
Financial assets
Cash and due from banks	$	69,235	$	69,235	$	69,235	$	—	$	—
Interest-bearing deposits	3,529		3,529		3,529		—		—
Securities available for sale	1,050,733		1,050,733		—		1,013,034		37,699
Securities held to maturity	154,035		154,837		—		154,837		—
Other investments	53,976		53,976		—		53,976		—
Loans held for sale	4,986		4,986		—		4,986		—
Loans	4,575,735		4,596,889		—		26,916		4,569,973
Financial liabilities
Deposits	4,161,490		4,164,660		—		4,164,660		—
Short-term borrowings	1,329,794		1,329,920		—		1,329,920		—
Subordinated debt	72,167		62,227		—		—		62,227
Long-term debt	39,052		39,704		—		39,704		—

	December 31, 2014
			Fair Value Measurements Using:
	Carrying Amount		Total		Level 1		Level 2		Level 3
	(dollars in thousands)
Financial assets
Cash and due from banks	$	72,276	$	72,276	$	72,276	$	—	$	—
Interest-bearing deposits	2,262		2,262		2,262		—		—
Securities available for sale	1,309,819		1,309,819		—		1,279,400		30,419
Other investments	44,545		44,545		—		44,545		—
Loans held for sale	2,502		2,502		—		2,502		—
Loans	4,457,308		4,439,766		—		34,864		4,404,902
Financial liabilities
Deposits	4,315,511		4,319,997		—		4,319,997		—
Short-term borrowings	1,105,876		1,105,867		—		1,105,867		—
Subordinated debt	72,167		62,815		—		—		62,815
Long-term debt	89,459		90,319		—		90,319		—

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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Operating Activities
Net Income	$ 40,082	$ 36,724
Adjustment to reconcile net income to net cash provided by operating activities:
Provision for credit losses	8,818	8,621
Deferred tax expense	12,520	6,207
Depreciation and amortization	5,750	11,659
Net gains on securities and other assets	(952)	(3,137)
Net amortization of premiums and discounts on securities	2,012	1,610
Net accretion of premiums and discounts on long term debt	0	(37)
Income from increase in cash surrender value of bank owned life insurance	(4,089)	(3,904)
Increase in interest receivable	(167)	(339)
Mortgage loans originated for sale	(67,708)	(3,810)
Proceeds from sale of mortgage loans	67,071	2,569
Decrease in interest payable	(173)	(476)
(Decrease) increase in income taxes payable	(22)	1,157
Other-net	(10,757)	772
Net cash provided by operating activities	52,385	57,616
Investing Activities
Proceeds from sale and maturity of held-to-maturity securities	3,828	0
Payments to acquire held-to-maturity securities	(156,756)	0
Proceeds from Sale of Available-for-sale Securities	0	132,868
Proceeds from maturities and redemptions of available-for-sale securities	286,924	199,580
Purchases of available-for-sale securities	(16,600)	(325,955)
Purchases of FHLB stock	(46,911)	(32,115)
Proceeds from the redemption of FHLB stock	36,980	16,565
Proceeds from bank owned life insurance	378	1,776
Proceeds from sale of loans	2,898	3,112
Proceeds from sale of other assets	3,668	11,314
Net increase in loans	(140,268)	(146,863)
Purchases of premises and equipment	(3,740)	(9,781)
Net cash used in investing activities	(29,599)	(149,499)
Financing Activities
Net increase in federal funds purchased	11,000	3,500
Net increase in other short-term borrowings	212,918	404,852
Net decrease in deposits	(154,018)	(231,475)
Repayments of other long-term debt	(50,407)	(32,808)
Proceeds from Issuance of Long-term Debt	0	5,000
Discount on dividend reinvestment plan purchases	0	(65)
Dividends paid	(18,862)	(19,754)
Proceeds from reissuance of treasury stock	192	192
Purchase of treasury stock	(25,383)	(30,928)
Net cash (used in) provided by financing activities	(24,560)	98,514
Net (decrease) increase in cash and cash equivalents	(1,774)	6,631
Cash and cash equivalents at January 1	74,538	77,439
Cash and cash equivalents at September 30	$ 72,764	$ 84,070

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Derivatives (Tables)

9 Months Ended

Sep. 30, 2015

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Credit Value Adjustment Recorded Related to Notional Amount Of Derivatives Outstanding

The following table depicts the credit value adjustment recorded related to the notional amount of derivatives outstanding as well as the notional amount of risk participation agreements participated to other banks:

	September 30, 2015			December 31, 2014
	(dollars in thousands)
Derivatives not Designated as Hedging Instruments
Credit value adjustment	$	(688	)	$	(268	)
Notional Amount:
Interest rate derivatives	271,371			273,388
Interest rate caps	23,447			6,656
Risk participation agreements	124,116			113,624
Sold credit protection on risk participation agreements	(17,635		)	(17,296		)
Derivatives Designated as Hedging Instruments
Fair value adjustment	2,644			472
Notional Amount - Interest rate derivatives	200,000			100,000

Schedule of Changes in Fair Value of Derivative Assets and Liabilities

The table below presents the amount representing the change in the fair value of derivative assets and derivative liabilities attributable to credit risk included in Other income on the Condensed Consolidated Statements of Income:

	For the Three Months Ended September 30,						For the Nine Months Ended September 30,
	2015			2014			2015			2014
	(dollars in thousands)
Non-hedging interest rate derivatives
(Decrease) increase in other income	$	(783	)	$	(108	)	$	(420	)	$	175
Hedging interest rate derivatives
Increase in interest and fees on loans	565			29			1,503			29
Increase in other expense	—			—			21			—

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Investment Securities - Analysis of Amortized Cost and Estimated Fair Values of Securities Available for Sale (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Investment Securities [Line Items]
Amortized Cost	$ 1,045,850	$ 1,317,318
Gross Unrealized Gains	17,069	16,921
Gross Unrealized Losses	(12,186)	(24,420)
Securities available for sale, at fair value	1,050,733	1,309,819
US Government Agencies Residential Mortgage-backed Securities [Member]
Investment Securities [Line Items]
Amortized Cost	20,902	23,344
Gross Unrealized Gains	2,379	2,595
Gross Unrealized Losses	0	(3)
Securities available for sale, at fair value	23,281	25,936
Residential Mortgage Backed Securities [Member]
Investment Securities [Line Items]
Amortized Cost	816,179	947,635
Gross Unrealized Gains	12,819	13,076
Gross Unrealized Losses	4,846	(9,830)
Securities available for sale, at fair value	824,152	950,881
Obligations of U.S. Government-Sponsored Enterprises - Mortgage-Backed Securities - Commercial [Member]
Investment Securities [Line Items]
Amortized Cost	37	72
Gross Unrealized Gains	1	2
Gross Unrealized Losses	0	0
Securities available for sale, at fair value	38	74
Obligations of U.S. Government-Sponsored Enterprises - Other Government-Sponsored Enterprises [Member]
Investment Securities [Line Items]
Amortized Cost	135,853	269,181
Gross Unrealized Gains	19	4
Gross Unrealized Losses	91	(1,308)
Securities available for sale, at fair value	135,781	267,877
Obligations of States and Political Subdivisions [Member]
Investment Securities [Line Items]
Amortized Cost	27,064	27,058
Gross Unrealized Gains	397	362
Gross Unrealized Losses	12	(43)
Securities available for sale, at fair value	27,449	27,377
Corporate Debt Securities [Member]
Investment Securities [Line Items]
Amortized Cost	1,895	6,682
Gross Unrealized Gains	438	573
Gross Unrealized Losses	0	0
Securities available for sale, at fair value	2,333	7,255
Pooled Trust Preferred Collateralized Debt Obligations [Member]
Investment Securities [Line Items]
Amortized Cost	42,000	41,926
Gross Unrealized Gains	1,016	309
Gross Unrealized Losses	(7,237)	(13,236)
Securities available for sale, at fair value	35,779	28,999
Debt Securities [Member]
Investment Securities [Line Items]
Amortized Cost	1,043,930	1,315,898
Gross Unrealized Gains	17,069	16,921
Gross Unrealized Losses	(12,186)	(24,420)
Securities available for sale, at fair value	1,048,813	1,308,399
Equity Securities [Member]
Investment Securities [Line Items]
Amortized Cost	1,920	1,420
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Securities available for sale, at fair value	$ 1,920	$ 1,420

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Loans and Allowance for Credit Losses - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non Accrual Status Of Loans After Number Of Days Past Due			90 days
Default Status Of TDRs After Number Of Days Past Due			90 days
Charge-offs	$ 2,401	$ 2,880	$ 14,462	$ 14,629
Unfunded commitments related to nonperforming loans	500		500		$ 0
Off balance sheet reserve to nonperforming loans	0		0		0
Loans held for sale	0		0
Impaired Loans Sold			2,400
Gain on impaired loans sold			400
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales	0	0	0	3,112
Total gains or losses included in earnings	0	0	105	77
Nonaccrual	28,803		28,803		42,667
Recorded investment	40,827		$ 40,827		$ 55,251
Loans to individuals [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non Accrual Status Of Loans After Number Of Days Past Due			150 days
Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans with modifications to rate and payment due to reamortization	0	100	$ 400	500
Loans Held For Sale [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales		0		3,112
Total gains or losses included in earnings		$ 0		$ 77
Non Accrual Loans [Member] | Industrial Manufacturer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual	6,100		6,100
Non Accrual Loans [Member] | Local Energy Company [Member] [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual	5,700		5,700
2012 Troubled Debt Restructuring [Member] | Non Accrual Loans [Member] | Local Energy Company [Member] [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual	2,300		2,300
Charge-off recognized			3,300
2014 Troubled Debt Restructuring [Member] | Non Accrual Loans [Member] | Local Energy Company [Member] [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual	$ 2,900		$ 2,900

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Subsequent Events (Details) $ in Millions	Oct. 01, 2015 USD ($)
Subsequent Events [Abstract]
Business Acquisition, Transaction Costs	$ 14.8
Total Acquired Assets	$ 102.8

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Condensed Consolidated Statements of Financial Condition (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Assets
Cash and due from banks	$ 69,235	$ 72,276
Interest-bearing bank deposits	3,529	2,262
Securities available for sale, at fair value	1,050,733	1,309,819
Securities held to maturity, at amortized cost (Fair value of $154,837 at September 30, 2015)	154,035	0
Other investments	53,976	44,545
Loans held for sale	4,986	2,502
Loans:
Portfolio loans	4,575,735	4,457,308
Allowance for credit losses	(48,518)	(52,051)
Net loans	4,527,217	4,405,257
Premises and equipment, net	62,812	64,989
Other real estate owned	10,542	7,197
Goodwill	161,429	161,429
Amortizing intangibles, net	1,196	1,665
Bank owned life insurance	181,278	177,567
Other assets	103,781	110,777
Total assets	6,384,749	6,360,285
Deposits (all domestic):
Noninterest-bearing	1,077,234	989,027
Interest-bearing	3,084,256	3,326,484
Total deposits	4,161,490	4,315,511
Short-term borrowings	1,329,794	1,105,876
Subordinated debentures	72,167	72,167
Other long-term debt	39,052	89,459
Total long-term debt	111,219	161,626
Other liabilities	59,478	61,127
Total liabilities	5,661,981	5,644,140
Shareholders’ Equity
Preferred stock, $1 par value per share, 3,000,000 shares authorized, none issued	0	0
Common stock, $1 par value per share, 200,000,000 shares authorized; 105,563,455 shares issued at September 30, 2015 and December 31, 2014, and 88,961,268 and 91,723,028 shares outstanding at September 30, 2015 and December 31, 2014, respectively	105,563	105,563
Additional paid-in capital	365,950	365,615
Retained earnings	374,247	353,027
Accumulated other comprehensive income (loss), net	4,961	(4,499)
Treasury stock (16,602,187 and 13,840,427 shares at September 30, 2015 and December 31, 2014, respectively)	(127,953)	(103,561)
Total shareholders’ equity	722,768	716,145
Total liabilities and shareholders’ equity	$ 6,384,749	$ 6,360,285

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Investment Securities Schedule of Held-to-Maturity Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Schedule of Held-to-maturity Securities [Line Items]
Due within 1 year	$ 0
Held-to-maturity Securities, Debt Maturities, Next Twelve Months, Fair Value	0
Held-to-maturity Securities, Accumulated Unrecognized Holding Gain	851
Held-to-maturity Securities	154,035
Securities held to maturity, fair value	154,837	$ 0
Due after 1 but within 5 years	0
Due after 5 but within 10 years	12,210
Held-to-maturity Securities, Debt Maturities, Year Six Through Ten, Fair Value	12,303
Held-to-maturity Securities, Debt Maturities, Year Two Through Five, Fair Value	0
Due after 10 years	5,655
Held-to-maturity Securities, Debt Maturities, after Ten Years, Fair Value	5,650
Held-to-maturity Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis	17,865
Held-to-maturity Securities, Debt Maturities, Single Maturity Date, Fair Value	17,953
Held-to-maturity Securities, Debt Maturities, without Single Maturity Date, Net Carrying Amount	136,170
Held-to-maturity Securities, Debt Maturities, without Single Maturity Date, Fair Value	136,884
US Government Agencies Residential Mortgage-backed Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity Securities, Accumulated Unrecognized Holding Gain	24
Held-to-maturity Securities	4,806
Securities held to maturity, fair value	4,830
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity Securities	131,364
Securities held to maturity, fair value	$ 132,054

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Condensed Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss), net [Member]	Treasury Stock [Member]
Beginning balance at Dec. 31, 2013	$ 711,697	$ 105,563	$ 365,333	$ 334,748	$ (20,588)	$ (73,359)
Beginning balance, shares at Dec. 31, 2013		95,245,215
Net Income	36,724			36,724
Other comprehensive income (loss)	10,912				10,912
Dividends, declared (USD per share)	(19,754)			(19,754)
Discount on dividend reinvestment plan purchases	(65)		(65)
Treasury stock acquired	(30,928)					(30,928)
Treasury stock acquired, shares		(3,633,513)
Treasury stock reissued	192		35	0		157
Treasury stock reissued, shares		21,960
Restricted stock	706	$ 0	273	0		433
Restricted stock, shares		88,987
Ending balance at Sep. 30, 2014	709,484	$ 105,563	365,576	351,718	(9,676)	(103,697)
Ending balance, shares at Sep. 30, 2014		91,722,649
Beginning balance at Dec. 31, 2014	$ 716,145	$ 105,563	365,615	353,027	(4,499)	(103,561)
Beginning balance, shares at Dec. 31, 2014	91,723,028	91,723,028
Net Income	$ 40,082			40,082
Other comprehensive income (loss)	9,460				9,460
Dividends, declared (USD per share)	(18,862)			(18,862)
Treasury stock acquired	(25,383)					(25,383)
Treasury stock acquired, shares		(2,918,066)
Treasury stock reissued	192		32	0		160
Treasury stock reissued, shares		20,936
Restricted stock	1,134	$ 0	303	0		831
Restricted stock, shares		135,370
Ending balance at Sep. 30, 2015	$ 722,768	$ 105,563	$ 365,950	$ 374,247	$ 4,961	$ (127,953)
Ending balance, shares at Sep. 30, 2015	88,961,268	88,961,268

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Loans and Allowance for Credit Losses - Troubled Debt Restructuring is 90 Days or More Past Due (Detail) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015 USD ($) Contract	Sep. 30, 2014 USD ($) Contract	Sep. 30, 2015 USD ($) Contract	Sep. 30, 2014 USD ($) Contract
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts			3	3
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $			$ 108	$ 18
Troubled Debt Restructuring Number Of Contracts Ninety Days Past Due	2	1
Financing Receivable, Modification, Subsequent Default, Recorded Investment | $	$ 105	$ 5
Residential real estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts			3	3
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $			$ 108	$ 18
Troubled Debt Restructuring Number Of Contracts Ninety Days Past Due	2	1
Financing Receivable, Modification, Subsequent Default, Recorded Investment | $	$ 105	$ 5

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Supplemental Cash Flow Disclosures - Non-cash Investing and Financing Activities (Detail) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Cash paid during the period for:
Interest	$ 11,682	$ 14,747
Income Taxes Paid, Net	4,000	7,700
Non-cash investing and financing activities:
Loans Transferred to Other Real Estate Owned and Repossessions	7,413	4,239
Fair value of loans transferred from held to maturity to held for sale	3,071	3,035
Gross increase in market value adjustment to securities available for sale	12,381	16,812
Gross increase (decrease) in market value adjustment to derivatives	2,167	(27)
Investments committed to purchase not settled	$ 1,350	$ 1,000

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Fair Values of Assets and Liabilities - Schedule of Assets Measured on Non-Recurring Basis (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Assets	$ 1,125,998	$ 1,368,052
Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	36,572	45,790
Other real estate owned	12,394	7,981
Total Assets	48,966	53,771
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Assets	0	0
Level 1 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	0	0
Other real estate owned	0	0
Total Assets	0	0
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Assets	1,088,299	1,337,633
Level 2 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	26,916	34,864
Other real estate owned	12,386	7,828
Total Assets	39,302	42,692
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Assets	37,699	30,419
Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	9,656	10,926
Other real estate owned	8	153
Total Assets	$ 9,664	$ 11,079

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Subsequent Events (Notes)

9 Months Ended

Sep. 30, 2014

Subsequent Events [Abstract]

Subsequent Events [Text Block]

Subsequent Events

On October 1, 2015, First Commonwealth Bank, the banking subsidiary of First Commonwealth Financial Corporation, completed its acquisition of Columbus, Ohio based First Community Bank in an all-cash deal valued at $14.8 million. First Community Bank has assets of $102.8 million and four branch locations which will operate under the First Commonwealth name.

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Earnings per Share - Composition of Weighted-Average Common Shares (Denominator) Used in Basic and Diluted Earnings Per Share (Detail) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Earnings Per Share [Abstract]
Weighted Average Number of Shares Issued, Basic	105,563,455	105,563,455	105,563,455	105,563,455
Average treasury shares (in shares)	(16,602,502)	(12,836,692)	(15,858,433)	(11,773,187)
Average unearned nonvested shares	(153,659)	(159,260)	(177,462)	(162,335)
Weighted average common shares and common stock equivalents used to calculate basic earnings per share (in shares)	88,807,294	92,567,503	89,527,560	93,627,933
Additional common stock equivalents (nonvested stock) used to calculate diluted earnings per share	6,452	11,198	3,938	4,850
Incremental Common Shares Attributable to Call Options and Warrants	0	0	0	0
Weighted average common shares and common stock equivalents used to calculate diluted earnings per share (in shares)	88,813,746	92,578,701	89,531,498	93,632,783

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Supplemental Cash Flow Disclosures (Tables)

9 Months Ended

Sep. 30, 2015

Supplemental Cash Flow Information [Abstract]

Schedule of Supplemental Cash Flow Disclosures

The following table presents information related to cash paid during the period for interest, as well as detail on non-cash investing and financing activities for the nine months endedSeptember 30:

	2015		2014
	(dollars in thousands)
Cash paid during the period for:
Interest	$	11,682	$	14,747
Income taxes	4,000		7,700
Non-cash investing and financing activities:
Loans transferred to other real estate owned and repossessed assets	7,413		4,239
Loans transferred from held to maturity to held for sale	3,071		3,035
Gross increase in market value adjustment to securities available for sale	12,381		16,812
Gross increase (decrease) in market value adjustment to derivatives	2,167		(27		)
Investments committed to purchase, not settled	1,350		1,000

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Derivatives - Additional Information (Detail) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015 USD ($) Derivatives	Sep. 30, 2014 USD ($)	Sep. 30, 2015 USD ($) Derivatives	Sep. 30, 2014 USD ($)	Dec. 31, 2014 USD ($)
Risk participation Agreements [Line Items]
HedgedItemsOfCashFlowHedge	$ 200,000		$ 200,000
Derivative Instruments Designated As Hedging Instruments Interest Income	$ 565	$ 29	$ 1,503	$ 29
Risk Participation Agreements Purchased [Domain]
Risk participation Agreements [Line Items]
Number of interest rate swaps | Derivatives	15		15
Risk Participation Agreements Sold [Domain]
Risk participation Agreements [Line Items]
Number of interest rate swaps | Derivatives	3		3
Designated as Hedging Instrument [Member]
Risk participation Agreements [Line Items]
Derivative, Notional Amount	$ 200,000		$ 200,000		$ 100,000
Three Year Maturity [Member] | Designated as Hedging Instrument [Member]
Risk participation Agreements [Line Items]
Derivative, Notional Amount	85,000		85,000
Four Year Maturity [Member] | Designated as Hedging Instrument [Member]
Risk participation Agreements [Line Items]
Derivative, Notional Amount	$ 115,000		$ 115,000

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Condensed Consolidated Statements of Changes in Shareholders' Equity (Unaudited) (Parenthetical) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Statement of Stockholders' Equity [Abstract]
Cash Dividends Declared per Common Share (in dollars per share)	$ 0.07	$ 0.07	$ 0.21	$ 0.21

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Condensed Consolidated Statements of Financial Condition (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Preferred stock, par value (in dollars per share)	$ 1	$ 1
Preferred stock, shares authorized (in shares)	3,000,000	3,000,000
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in dollars per share)	$ 1	$ 1
Common stock, shares authorized (in shares)	200,000,000	200,000,000
Common stock, shares issued (in shares)	105,563,455	105,563,455
Common stock, shares outstanding (in shares)	88,961,268	91,723,028
Treasury stock, shares (in shares)	16,602,187	13,840,427
Securities held to maturity, fair value	$ 154,837	$ 0

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Income Taxes

9 Months Ended

Sep. 30, 2015

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes

At September 30, 2015 and December 31, 2014, First Commonwealth had no material unrecognized tax benefits or accrued interest and penalties. If applicable, First Commonwealth will record interest and penalties as a component of noninterest expense. Federal and state tax years 2012 through 2014 were open for examination as of September 30, 2015.

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Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2015	Nov. 06, 2015
Entity Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2015
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q3
Trading Symbol	FCF
Entity Registrant Name	FIRST COMMONWEALTH FINANCIAL CORP /PA/
Entity Central Index Key	0000712537
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		88,961,268

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Fair Values of Assets and Liabilities

9 Months Ended

Sep. 30, 2015

Fair Value Disclosures [Abstract]

Fair Values of Assets and Liabilities

Fair Values of Assets and Liabilities

FASB ASC Topic 820, “Fair Value Measurements and Disclosures”, requires disclosures for non-financial assets and non-financial liabilities, except for items that are recognized or disclosed at fair value in the financial statements on a recurring basis (at least annually). All non-financial assets are included either as a separate line item on the Condensed Consolidated Statements of Financial Condition or in the “Other assets” category of the Condensed Consolidated Statements of Financial Condition. Currently, First Commonwealth does not have any non-financial liabilities to disclose.

FASB ASC Topic 825, “Financial Instruments”, permits entities to irrevocably elect to measure select financial instruments and certain other items at fair value. The unrealized gains and losses are required to be included in earnings each reporting period for the items that fair value measurement is elected. First Commonwealth has elected not to measure any existing financial instruments at fair value under FASB ASC Topic 825; however, in the future we may elect to adopt this guidance for select financial instruments.

In accordance with FASB ASC Topic 820, First Commonwealth groups financial assets and financial liabilities measured at fair value in three levels based on the principal markets in which the assets and liabilities are transacted and the observability of the data points used to determine fair value. These levels are:

• Level 1 – Valuations for assets and liabilities traded in active exchange markets, such as the New York Stock Exchange (“NYSE”). Valuations are obtained from readily available pricing sources for market transactions involving identical assets or liabilities. Level 1 securities include equity holdings comprised of publicly traded bank stocks which were priced using quoted market prices.

• Level 2 – Valuations for assets and liabilities traded in less active dealer or broker markets. Valuations are obtained for identical or comparable assets or liabilities from alternative pricing sources with reasonable levels of price transparency. Level 2 includes Obligations of U.S. Government securities issued by Agencies and Sponsored Enterprises, Obligations of States and Political Subdivisions, corporate securities, FHLB stock, loans held for sale, interest rate derivatives (including interest rate caps, interest rate swaps and risk participation agreements), certain other real estate owned and certain impaired loans.

Level 2 investment securities are valued by a recognized third party pricing service using observable inputs. The model used by the pricing service varies by asset class and incorporates available market, trade and bid information as well as cash flow information when applicable. Because many fixed-income investment securities do not trade on a daily basis, the model uses available information such as benchmark yield curves, benchmarking of like investment securities, sector groupings and matrix pricing. The model will also use processes such as an option adjusted spread to assess the impact of interest rates and to develop prepayment estimates. Market inputs normally used in the pricing model include benchmark yields, reported trades, broker/dealer quotes, issuer spreads, two-sided markets, benchmark securities, bids, offers and reference data including market research publications.

Management validates the market values provided by the third party service by having another recognized pricing service price 100% of the securities on an annual basis and a random sample of securities each quarter, monthly monitoring of variances from prior period pricing and, on a monthly basis, evaluating pricing changes compared to expectations based on changes in the financial markets.

Other investments recorded in the Condensed Consolidated Statements of Financial Condition are comprised of FHLB stock whose estimated fair value is based on its par value. Additional information on FHLB stock is provided in Note 7, “Impairment of Investment Securities.”

Loans held for sale include residential mortgage loans originated for sale in the secondary mortgage market. The estimated fair value for these loans was determined on the basis of rates obtained in the respective secondary market.

Interest rate derivatives are reported at an estimated fair value utilizing Level 2 inputs and are included in other assets and other liabilities, and consist of interest rate swaps where there is no significant deterioration in the counterparties' (loan customers') credit risk since origination of the interest rate swap as well as interest rate caps and risk participation agreements. First Commonwealth values its interest rate swap and cap positions using a yield curve by taking market prices/rates for an appropriate set of instruments. The set of instruments currently used to determine the U.S. Dollar yield curve includes cash LIBOR rates from overnight to three months, Eurodollar futures contracts and swap rates from three years to thirty years. These yield curves determine the valuations of interest rate swaps. Interest rate derivatives are further described in Note 11, “Derivatives.”

For purposes of potential valuation adjustments to our derivative positions, First Commonwealth evaluates the credit risk of its counterparties as well as our own credit risk. Accordingly, we have considered factors such as the likelihood of default, expected loss given default, net exposures and remaining contractual life, among other things, in determining if any fair value adjustments related to credit risk are required. We review our counterparty exposure quarterly, and when necessary, appropriate adjustments are made to reflect the exposure.

We also utilize this approach to estimate our own credit risk on derivative liability positions. In 2015, we have not realized any losses due to a counterparty's inability to pay any uncollateralized positions.

The estimated fair value for other real estate owned included in Level 2 is determined by either an independent market-based appraisal less estimated costs to sell or an executed sales agreement.

• Level 3 – Valuations for assets and liabilities that are derived from other valuation methodologies, including option pricing models, discounted cash flow models and similar techniques, and not based on market exchange, dealer or broker traded transactions. If the inputs used to provide the valuation are unobservable and/or there is very little, if any, market activity for the security or similar securities, the securities would be considered Level 3 securities. Level 3 valuations incorporate certain assumptions and projections in determining the fair value assigned to such assets or liabilities. The assets included in Level 3 are pooled trust preferred collateralized debt obligations, non-marketable equity investments, certain interest rate derivatives, certain other real estate owned and certain impaired loans.

Our pooled trust preferred collateralized debt obligations are collateralized by the trust preferred securities of individual banks, thrifts and bank holding companies in the United States. There has been little or no active trading in these securities since 2009; therefore, it is more appropriate to determine estimated fair value using a discounted cash flow analysis. Detail on our process for determining the appropriate cash flows for this analysis is provided in Note 7, “Impairment of Investment Securities.” The discount rate applied to the cash flows is determined by evaluating the current market yields for comparable corporate and structured credit products along with an evaluation of the risks associated with the cash flows of the comparable security. Due to the fact that there is no active market for the pooled trust preferred collateralized debt obligations, one key reference point is the market yield for the single issue trust preferred securities issued by banks and thrifts for which there is more activity than for the pooled securities. Adjustments are then made to reflect the credit and structural differences between these two security types.

Management validates the fair value of the pooled trust preferred collateralized debt obligations by monitoring the performance of the underlying collateral, discussing the discount rate, cash flow assumptions and general market trends with the specialized third party and confirming changes in the underlying collateral to the trustee reports. Management’s monitoring of the underlying collateral includes deferrals of interest payments, payment defaults, cures of previously deferred interest payments, any regulatory filings or actions and general news related to the underlying collateral. Management also evaluates fair value changes compared to expectations based on changes in the interest rates used in determining the discount rate and general financial markets.

The estimated fair value of the non-marketable equity investments included in Level 3 is based on par value.

For interest rate derivatives included in Level 3, the fair value incorporates credit risk by considering such factors as likelihood of default and expected loss given default based on the credit quality of the underlying counterparties (loan customers).

In accordance with ASU 2011-4, the following table provides information related to quantitative inputs and assumptions used in Level 3 fair value measurements.

	Fair Value (dollars in thousands)			Valuation Technique	Unobservable Inputs	Range / (weighted average)
Pooled Trust Preferred Securities	$	35,779		Discounted Cash Flow	Probability of default	0% - 100% (13.72%)
					Prepayment rates	0% - 73.52% (5.09%)
					Discount rates	5.25% - 12.00% (a)
Equities	1,920			Par Value	N/A	N/A
Impaired Loans	2,903		(b)	Reserve study	Discount rate	10.00%
					Gas per MCF	$2.71 - $3.48 (c)
					Oil per BBL/d	$55.00 (c)
	520		(b)	Discounted Cash Flow	Discount Rate	1.90%
Other Real Estate Owned	8			Internal Valuation	N/A	N/A

(a) incorporates spread over risk free rate related primarily to credit quality and illiquidity of securities.

(b) the remainder of impaired loans valued using Level 3 inputs are not included in this disclosure as the values of those loans are based on bankruptcy agreement documentation.

(c) unobservable inputs are defined as follows: MCF - million cubic feet; BBL/d - barrels per day.

The significant unobservable inputs used in the fair value measurement of pooled trust preferred securities are the probability of default, discount rates and prepayment rates. Significant increases in the probability of default or discount rate used would result in a decrease in the estimated fair value of these securities, while decreases in these variables would result in higher fair value measurements. In general, a change in the assumption of probability of default is accompanied by a directionally similar change in the discount rate. In most cases, increases in the prepayment rate assumptions would result in a higher estimated fair value for these securities while decreases would provide for a lower value. The direction of this change is somewhat dependent on the structure of the investment and the amount of the investment tranches senior to our position.

The discount rate is the significant unobservable input used in the fair value measurement of impaired loans. Significant increases in this rate would result in a decrease in the estimated fair value of the loans, while a decrease in this rate would result in a higher fair value measurement. Other unobservable inputs in the fair value measurement of impaired loans relate to gas, oil and natural gas prices. Increases in these prices would result in an increase in the estimated fair value of the loans, while a decrease in these prices would result in a lower fair value measurement.

The tables below present the balances of assets and liabilities measured at fair value on a recurring basis:

	September 30, 2015
	Level 1		Level 2		Level 3		Total
	(dollars in thousands)
Obligations of U.S. Government Agencies:
Mortgage-Backed Securities - Residential	$	—	$	23,281	$	—	$	23,281
Obligations of U.S. Government-Sponsored Enterprises:
Mortgage-Backed Securities - Residential	—		824,152		—		824,152
Mortgage-Backed Securities - Commercial	—		38		—		38
Other Government-Sponsored Enterprises	—		135,781		—		135,781
Obligations of States and Political Subdivisions	—		27,449		—		27,449
Corporate Securities	—		2,333		—		2,333
Pooled Trust Preferred Collateralized Debt Obligations	—		—		35,779		35,779
Total Debt Securities	—		1,013,034		35,779		1,048,813
Equities	—		—		1,920		1,920
Total Securities Available for Sale	—		1,013,034		37,699		1,050,733
Other Investments	—		53,976		—		53,976
Loans held for sale	—		4,986		—		4,986
Other Assets(a)	—		16,303		—		16,303
Total Assets	$	—	$	1,088,299	$	37,699	$	1,125,998
Other Liabilities(a)	$	—	$	14,333	$	—	$	14,333
Total Liabilities	$	—	$	14,333	$	—	$	14,333

(a) Hedging and non-hedging interest rate derivatives

	December 31, 2014
	Level 1		Level 2		Level 3		Total
	(dollars in thousands)
Obligations of U.S. Government Agencies:
Mortgage-Backed Securities - Residential	$	—	$	25,936	$	—	$	25,936
Obligations of U.S. Government-Sponsored Enterprises:
Mortgage-Backed Securities - Residential	—		950,881		—		950,881
Mortgage-Backed Securities - Commercial	—		74		—		74
Other Government-Sponsored Enterprises	—		267,877		—		267,877
Obligations of States and Political Subdivisions	—		27,377		—		27,377
Corporate Securities	—		7,255		—		7,255
Pooled Trust Preferred Collateralized Debt Obligations	—		—		28,999		28,999
Total Debt Securities	—		1,279,400		28,999		1,308,399
Equities	—		—		1,420		1,420
Total Securities Available for Sale	—		1,279,400		30,419		1,309,819
Other Investments	—		44,545		—		44,545
Loans Held for Sale	—		2,502		—		2,502
Other Assets(a)	—		11,186		—		11,186
Total Assets	$	—	$	1,337,633	$	30,419	$	1,368,052
Other Liabilities(a)	$	—	$	10,671	$	—	$	10,671
Total Liabilities	$	—	$	10,671	$	—	$	10,671

(a) Hedging and non-hedging interest rate derivatives

For the nine months endedSeptember 30, changes in Level 3 assets and liabilities measured at fair value on a recurring basis are summarized as follows:

	2015
	Pooled Trust Preferred Collateralized Debt Obligations			Equities		Total
	(dollars in thousands)
Balance, beginning of period	$	28,999		$	1,420	$	30,419
Total gains or losses
Included in earnings	105			—		105
Included in other comprehensive income	7,729			—		7,729
Purchases, issuances, sales, and settlements
Purchases	—			500		500
Issuances	—			—		—
Sales	—			—		—
Settlements	(1,054		)	—		(1,054		)
Transfers into Level 3	—			—		—
Balance, end of period	$	35,779		$	1,920	$	37,699

	2014
	Pooled Trust Preferred Collateralized Debt Obligations			Equities		Loans Held for Sale			Total
	(dollars in thousands)
Balance, beginning of period	$	23,523		$	1,420	$	—		$	24,943
Total gains or losses
Included in earnings	—			—		77			77
Included in other comprehensive income	7,266			—		—			7,266
Purchases, issuances, sales, and settlements
Purchases	—			—		—			—
Issuances	—			—		—			—
Sales	—			—		(3,112		)	(3,112		)
Settlements	(1,333		)	—		—			(1,333		)
Transfers into Level 3	—			—		3,035			3,035
Balance, end of period	$	29,456		$	1,420	$	—		$	30,876

During the nine months endedSeptember 30, 2015 and 2014, there were no transfers between fair value Levels 1 and 2. During the nine months endedSeptember 30, 2015, there were no transfers between fair value Levels 2 and 3. However, $3.0 million of loans were transferred into Level 3 from Level 2 during the nine months endedSeptember 30, 2014 due to the loans being transferred to a held for sale status. The loans transferred and subsequently sold related to three nonperforming loan relationships for which this was determined to be the appropriate exit strategy. There were no gains or losses included in earnings for the periods presented that are attributable to the change in realized gains (losses) relating to assets held at September 30, 2015 and 2014.

For the three months endedSeptember 30, changes in Level 3 assets and liabilities measured at fair value on a recurring basis are summarized as follows:

	2015
	Pooled Trust Preferred Collateralized Debt Obligations		Equities		Total
	(dollars in thousands)
Balance, beginning of period	$	35,521	$	1,920	$	37,441
Total gains or losses
Included in earnings	—		—		—
Included in other comprehensive income	258		—		258
Purchases, issuances, sales, and settlements
Purchases	—		—		—
Issuances	—		—		—
Sales	—		—		—
Settlements	—		—		—
Transfers into Level 3	—		—		—
Balance, end of period	$	35,779	$	1,920	$	37,699

	2014
	Pooled Trust Preferred Collateralized Debt Obligations			Equities		Loans Held for Sale		Total
	(dollars in thousands)
Balance, beginning of period	$	28,154		$	1,420	$	—	29,574
Total gains or losses
Included in earnings	—			—		—		—
Included in other comprehensive income	1,470			—		—		1,470
Purchases, issuances, sales, and settlements
Purchases	—			—		—		—
Issuances	—			—		—		—
Sales	—			—		—		—
Settlements	(168		)	—		—		(168		)
Transfers into Level 3	—			—		—		—
Balance, end of period	$	29,456		$	1,420	$	—	$	30,876

During the three months endedSeptember 30, 2015 and 2014, there were no transfers between fair value Levels 1 and 2.

The tables below present the balances of assets measured at fair value on a non-recurring basis at:

	September 30, 2015
	Level 1		Level 2		Level 3		Total
	(dollars in thousands)
Impaired loans	$	—	$	26,916	$	9,656	$	36,572
Other real estate owned	—		12,386		8		12,394
Total Assets	$	—	$	39,302	$	9,664	$	48,966

	December 31, 2014
	Level 1		Level 2		Level 3		Total
	(dollars in thousands)
Impaired loans	$	—	$	34,864	$	10,926	$	45,790
Other real estate owned	—		7,828		153		7,981
Total Assets	$	—	$	42,692	$	11,079	$	53,771

The following losses were realized on the assets measured on a nonrecurring basis:

	For the Three Months Ended September 30,						For the Nine Months Ended September 30,
	2015			2014			2015			2014
	(dollars in thousands)
Impaired loans	$	(2,838	)	$	456		$	(3,532	)	$	(1,291	)
Other real estate owned	(78		)	(51		)	(1,205		)	(1,109		)
Total losses	$	(2,916	)	$	405		$	(4,737	)	$	(2,400	)

Impaired loans over $100 thousand are individually reviewed to determine the amount of each loan considered to be at risk of non-collection. The fair value for impaired loans that are collateral based is determined by reviewing real property appraisals, equipment valuations, accounts receivable listings and other financial information. A discounted cash flow analysis is performed to determine fair value for impaired loans when an observable market price or a current appraisal is not available. For real estate secured loans, First Commonwealth’s loan policy requires updated appraisals be obtained at least every twelve months on all impaired loans with balances of $250 thousand and over. For real estate secured loans with balances under $250 thousand, we rely on broker price opinions. For non-real estate secured assets, the Company normally relies on third party valuations specific to the collateral type.

The fair value for other real estate owned determined by either an independent market-based appraisal less estimated costs to sell or an executed sales agreement is classified as Level 2. The fair value for other real estate owned determined using an internal valuation is classified as Level 3. Other real estate owned has a book cost of $10.5 million as of September 30, 2015 and consisted primarily of commercial real estate properties in Pennsylvania. We review whether events and circumstances subsequent to a transfer to other real estate owned have occurred that indicate the balance of those assets may not be recoverable. If events and circumstances indicate further impairment we will record a charge to the extent that the carrying value of the assets exceed their fair values, less estimated cost to sell, as determined by valuation techniques appropriate in the circumstances.

Certain other assets and liabilities, including goodwill and core deposit intangibles, are measured at fair value on a non-recurring basis; that is, the instruments are not measured at fair value on an ongoing basis but are subject to fair value adjustments only in certain circumstances. Additional information related to goodwill is provided in Note 12, “Goodwill.” There were no other assets or liabilities measured at fair value on a non-recurring basis during the nine months endedSeptember 30, 2015.

FASB ASC 825-10, “Transition Related to FSP FAS 107-1” and APB 28-1, “Interim Disclosures about Fair Value of Financial Instruments,” requires disclosure of the fair value of financial assets and financial liabilities, including those financial assets and financial liabilities that are not measured and reported at fair value on a recurring basis or non-recurring basis. The methodologies for estimating the fair value of financial assets and financial liabilities that are measured at fair value on a recurring or non-recurring basis are as discussed above. The methodologies for other financial assets and financial liabilities are discussed below.

Cash and due from banks and interest-bearing bank deposits: The carrying amounts for cash and due from banks and interest-bearing bank deposits approximate the estimated fair values of such assets.

Securities: Fair values for securities available for sale and held to maturity are based on quoted market prices, if available. If quoted market prices are not available, fair values are based on quoted market prices of comparable instruments. Pooled trust preferred collateralized debt obligations values are derived from other valuation methodologies, including option pricing models, discounted cash flow models and similar techniques, and not based on market exchange, dealer or broker traded transactions. These valuations incorporate certain assumptions and projections in determining the fair value assigned to each instrument. The carrying value of other investments, which includes FHLB stock, is considered a reasonable estimate of fair value.

Loans: The fair values of all loans are estimated by discounting the estimated future cash flows using interest rates currently offered for loans with similar terms to borrowers of similar credit quality adjusted for past due and nonperforming loans, which is not an exit price under FASB ASC Topic 820, “Fair Value Measurements and Disclosures.”

Loans Held for Sale: The estimated fair value of loans held for sale is based on market bids obtained from potential buyers.

Off-balance sheet instruments: Many of First Commonwealth’s off-balance sheet instruments, primarily loan commitments and standby letters of credit, are expected to expire without being drawn upon; therefore, the commitment amounts do not necessarily represent future cash requirements. FASB ASC Topic 460, “Guarantees” clarified that a guarantor is required to recognize, at the inception of a guarantee, a liability for the fair value of the obligation undertaken in issuing the guarantee. The carrying amount and fair value for standby letters of credit was $0.2 million at September 30, 2015 and December 31, 2014, respectively. See Note 5, “Commitments and Contingent Liabilities,” for additional information.

Deposit liabilities: The estimated fair value of demand deposits, savings accounts and money market deposits is the amount payable on demand at the reporting date because of the customers’ ability to withdraw funds immediately. The carrying value of variable rate time deposit accounts and certificates of deposit approximate their fair values at the report date. Also, fair values of fixed rate time deposits for both periods are estimated by discounting the future cash flows using interest rates currently being offered and a schedule of aggregated expected maturities.

Short-term borrowings: The fair values of borrowings from the FHLB were estimated based on the estimated incremental borrowing rate for similar types of borrowings. The carrying amounts of other short-term borrowings such as federal funds purchased and securities sold under agreement to repurchase were used to approximate fair value due to the short-term nature of the borrowings.

Long-term debt and subordinated debt: The fair value of long-term debt and subordinated debt is estimated by discounting the future cash flows using First Commonwealth’s estimate of the current market rate for similar types of borrowing arrangements or an announced redemption price.

The following table presents carrying amounts and fair values of First Commonwealth’s financial instruments:

	September 30, 2015
			Fair Value Measurements Using:
	Carrying Amount		Total		Level 1		Level 2		Level 3
	(dollars in thousands)
Financial assets
Cash and due from banks	$	69,235	$	69,235	$	69,235	$	—	$	—
Interest-bearing deposits	3,529		3,529		3,529		—		—
Securities available for sale	1,050,733		1,050,733		—		1,013,034		37,699
Securities held to maturity	154,035		154,837		—		154,837		—
Other investments	53,976		53,976		—		53,976		—
Loans held for sale	4,986		4,986		—		4,986		—
Loans	4,575,735		4,596,889		—		26,916		4,569,973
Financial liabilities
Deposits	4,161,490		4,164,660		—		4,164,660		—
Short-term borrowings	1,329,794		1,329,920		—		1,329,920		—
Subordinated debt	72,167		62,227		—		—		62,227
Long-term debt	39,052		39,704		—		39,704		—

	December 31, 2014
			Fair Value Measurements Using:
	Carrying Amount		Total		Level 1		Level 2		Level 3
	(dollars in thousands)
Financial assets
Cash and due from banks	$	72,276	$	72,276	$	72,276	$	—	$	—
Interest-bearing deposits	2,262		2,262		2,262		—		—
Securities available for sale	1,309,819		1,309,819		—		1,279,400		30,419
Other investments	44,545		44,545		—		44,545		—
Loans held for sale	2,502		2,502		—		2,502		—
Loans	4,457,308		4,439,766		—		34,864		4,404,902
Financial liabilities
Deposits	4,315,511		4,319,997		—		4,319,997		—
Short-term borrowings	1,105,876		1,105,867		—		1,105,867		—
Subordinated debt	72,167		62,815		—		—		62,815
Long-term debt	89,459		90,319		—		90,319		—

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Condensed Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Interest Income
Interest and fees on loans	$ 43,083	$ 43,200	$ 128,334	$ 128,490
Interest and dividends on investments:
Taxable interest	6,470	7,118	20,022	21,632
Interest exempt from federal income taxes	261	104	646	172
Dividends	685	663	2,727	1,459
Interest on bank deposits	2	4	7	8
Total interest income	50,501	51,089	151,736	151,761
Interest Expense
Interest on deposits	1,757	2,974	5,787	9,897
Interest on short-term borrowings	1,279	662	3,353	1,608
Interest on subordinated debentures	588	578	1,736	1,715
Interest on other long-term debt	192	322	633	1,014
Total interest expense	3,816	4,536	11,509	14,234
Net Interest Income	46,685	46,553	140,227	137,527
Provision for credit losses	4,621	2,073	8,818	8,621
Net Interest Income after Provision for Credit Losses	42,064	44,480	131,409	128,906
Noninterest Income
Net securities gains	0	48	125	50
Trust income	1,614	1,678	4,511	4,587
Service charges on deposit accounts	4,081	4,099	11,271	12,032
Insurance and retail brokerage commissions	2,163	1,709	6,536	4,704
Income from bank owned life insurance	1,357	1,330	4,089	4,131
Gain on sale of loans	1,196	67	2,262	143
Gain on sale of other assets	444	675	1,022	4,345
Card related interchange income	3,637	3,599	10,784	10,620
Derivatives mark to market (expense) income	(783)	(108)	(420)	175
Other income	1,796	1,953	5,863	6,185
Total noninterest income	15,505	15,050	46,043	46,972
Noninterest Expense
Salaries and employee benefits	22,446	22,244	66,339	65,185
Net occupancy expense	3,291	3,180	10,518	9,969
Furniture and equipment expense	2,670	4,471	7,980	15,050
Data processing expense	1,558	1,583	4,505	4,593
Advertising and promotion expense	789	861	1,946	2,346
Pennsylvania shares tax expense	1,713	1,033	3,617	2,782
Intangible amortization	157	174	469	530
Collection and repossession expense	801	783	2,229	1,941
Other professional fees and services	1,007	1,050	2,882	2,777
FDIC insurance	963	926	3,047	3,026
Loss on sale or write-down of assets	140	61	2,037	1,241
Operational losses (recoveries)	314	187	1,637	(273)
Conversion related expenses	0	783	0	1,676
Other operating expenses	4,408	4,232	13,539	13,008
Total noninterest expense	40,257	41,568	120,745	123,851
Income Before Income Taxes	17,312	17,962	56,707	52,027
Income tax provision	4,898	5,466	16,625	15,303
Net Income	$ 12,414	$ 12,496	$ 40,082	$ 36,724
Average Shares Outstanding (in shares)	88,807,294	92,567,503	89,527,560	93,627,933
Average Shares Outstanding Assuming Dilution (in shares)	88,813,746	92,578,701	89,531,498	93,632,783
Per Share Data:
Basic Earnings per Share (in dollars per share)	$ 0.14	$ 0.13	$ 0.45	$ 0.39
Diluted Earnings per Share (in dollars per share)	0.14	0.13	0.45	0.39
Cash Dividends Declared per Common Share (in dollars per share)	$ 0.07	$ 0.07	$ 0.21	$ 0.21

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Earnings per Share

9 Months Ended

Sep. 30, 2015

Earnings Per Share [Abstract]

Earnings per Share

Earnings per Share

The following table summarizes the composition of the weighted-average common shares (denominator) used in the basic and diluted earnings per share computations:

	For the Three Months Ended September 30,				For the Nine Months Ended September 30,
	2015		2014		2015		2014
Weighted average common shares issued	105,563,455		105,563,455		105,563,455		105,563,455
Average treasury stock shares	(16,602,502	)	(12,836,692	)	(15,858,433	)	(11,773,187	)
Average unearned nonvested shares	(153,659	)	(159,260	)	(177,462	)	(162,335	)
Weighted average common shares and common stock equivalents used to calculate basic earnings per share	88,807,294		92,567,503		89,527,560		93,627,933
Additional common stock equivalents (nonvested stock) used to calculate diluted earnings per share	6,452		11,198		3,938		4,850
Additional common stock equivalents (stock options) used to calculate diluted earnings per share	—		—		—		—
Weighted average common shares and common stock equivalents used to calculate diluted earnings per share	88,813,746		92,578,701		89,531,498		93,632,783

The following table shows the number of shares and the price per share related to common stock equivalents that were not included in the computation of diluted earnings per share for the nine months endedSeptember 30 because to do so would have been antidilutive.

	2015					2014
		Price Range					Price Range
	Shares	From		To		Shares	From		To
Stock Options	—	$	—	$	—	15,000	$	14.55	$	14.55
Restricted Stock	121,091	5.26		9.84		94,929	4.41		9.18

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Supplemental Cash Flow Disclosures

9 Months Ended

Sep. 30, 2015

Supplemental Cash Flow Information [Abstract]

Supplemental Cash Flow Disclosures

Supplemental Cash Flow Disclosures

The following table presents information related to cash paid during the period for interest, as well as detail on non-cash investing and financing activities for the nine months endedSeptember 30:

	2015		2014
	(dollars in thousands)
Cash paid during the period for:
Interest	$	11,682	$	14,747
Income taxes	4,000		7,700
Non-cash investing and financing activities:
Loans transferred to other real estate owned and repossessed assets	7,413		4,239
Loans transferred from held to maturity to held for sale	3,071		3,035
Gross increase in market value adjustment to securities available for sale	12,381		16,812
Gross increase (decrease) in market value adjustment to derivatives	2,167		(27		)
Investments committed to purchase, not settled	1,350		1,000

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Supplemental Comprehensive Income Disclosures (Tables)

9 Months Ended

Sep. 30, 2015

Supplemental Comprehensive Income Disclosures [Abstract]

Supplemental Comprehensive Income Disclosures

The following table identifies the related tax effects allocated to each component of other comprehensive income (“OCI”) in the Condensed Consolidated Statements of Comprehensive Income. Reclassification adjustments related to securities available for sale are included in the "Net securities gains" line and reclassification adjustments related to losses on derivatives are included in the "Other operating expenses" line in the Condensed Consolidated Statements of Income.

	For the Nine Months Ended September 30,
	2015									2014
	Pretax Amount			Tax (Expense) Benefit			Net of Tax Amount			Pretax Amount			Tax (Expense) Benefit			Net of Tax Amount
	(dollars in thousands)
Unrealized gains on securities:
Unrealized holding gains on securities arising during the period	$	12,510		$	(4,377	)	$	8,133		$	16,863		$	(5,902	)	$	10,961
Reclassification adjustment for gains on securities included in net income	(125		)	44			(81		)	(50		)	18			(32		)
Total unrealized gains on securities	12,385			(4,333		)	8,052			16,813			(5,884		)	10,929
Unrealized gains (losses) on derivatives:
Unrealized holding gains (losses) on derivatives arising during the period	2,172			(760		)	1,412			(27		)	9			(18		)
Reclassification adjustment for (gains) losses on derivatives included in net income	(6		)	2			(4		)	1			—			1
Total unrealized (losses) gains on derivatives	2,166			(758		)	1,408			(26		)	9			(17		)
Total other comprehensive income	$	14,551		$	(5,091	)	$	9,460		$	16,787		$	(5,875	)	$	10,912

	For the Three Months Ended September 30,
	2015							2014
	Pretax Amount		Tax (Expense) Benefit			Net of Tax Amount		Pretax Amount			Tax (Expense) Benefit		Net of Tax Amount
	(dollars in thousands)
Unrealized gains (losses) on securities:
Unrealized holding gains (losses) on securities arising during the period	$	6,344	$	(2,221	)	$	4,123	$	(5,544	)	$	1,938	$	(3,606	)
Reclassification adjustment for gains on securities included in net income	—		—			—		(48		)	17		(31		)
Total unrealized gains (losses) on securities	6,344		(2,221		)	4,123		(5,592		)	1,955		(3,637		)
Unrealized gains (losses) on derivatives:
Unrealized holding gains (losses) on derivatives arising during the period	1,504		(526		)	978		(27		)	9		(18		)
Reclassification adjustment for losses on derivatives included in net income	—		—			—		1			—		1
Total unrealized gains on derivatives	1,504		(526		)	978		(26		)	9		(17		)
Total other comprehensive income (loss)	$	7,848	$	(2,747	)	$	5,101	$	(5,618	)	$	1,964	$	(3,654	)

Schedule of Accumulated Other Comprehensive Income (Loss)

The following table details the change in components of OCI for the nine months endedSeptember 30:

	2015											2014
	Securities Available for Sale			Post-Retirement Obligation		Derivatives			Accumulated Other Comprehensive Income			Securities Available for Sale			Post-Retirement Obligation		Derivatives			Accumulated Other Comprehensive Income
	(dollars in thousands)
Balance at December 31	$	(4,875	)	$	76	$	300		$	(4,499	)	$	(20,868	)	$	280	$	—		$	(20,588	)
Other comprehensive income before reclassification adjustment	8,133			—		1,412			9,545			10,961			—		(18		)	10,943
Amounts reclassified from accumulated other comprehensive (loss) income	(81		)	—		(4		)	(85		)	(32		)	—		1			(31		)
Net other comprehensive income during the period	8,052			—		1,408			9,460			10,929			—		(17		)	10,912
Balance at September 30	$	3,177		$	76	$	1,708		$	4,961		$	(9,939	)	$	280	$	(17	)	$	(9,676	)

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Derivatives

9 Months Ended

Sep. 30, 2015

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivatives

Derivatives

Derivatives Not Designated as Hedging Instruments

First Commonwealth is a party to interest rate derivatives that are not designated as hedging instruments. These derivatives relate to interest rate swaps that First Commonwealth enters into with customers to allow customers to convert variable rate loans to a fixed rate. First Commonwealth pays interest to the customer at a floating rate on the notional amount and receives interest from the customer at a fixed rate for the same notional amount. At the same time the interest rate swap is entered into with the customer, an offsetting interest rate swap is entered into with another financial institution. First Commonwealth pays the other financial institution interest at the same fixed rate on the same notional amount as the swap entered into with the customer, and receives interest from the financial institution for the same floating rate on the same notional amount.

The changes in the fair value of the swaps offset each other, except for the credit risk of the counterparties, which is determined by taking into consideration the risk rating, probability of default and loss given default for all counterparties.

We have fifteen risk participation agreements with financial institution counterparties for interest rate swaps related to loans in which we are a participant. The risk participation agreements provide credit protection to the financial institution should the borrower fail to perform on its interest rate derivative contract with the financial institution. We have three risk participation agreements with financial institution counterparties for interest rate swaps related to loans in which we are the lead bank. The risk participation agreement provides credit protection to us should the borrower fail to perform on its interest rate derivative contract with us.

First Commonwealth is also party to interest rate caps that are not designated as hedging instruments. These derivatives relate to contracts that First Commonwealth enters into with loan customers that provide a maximum interest rate on their variable rate loan. At the same time the interest rate cap is entered into with the customer, First Commonwealth enters into an offsetting interest rate cap with another financial institution. The notional amount and maximum interest rate on both interest cap contracts are identical.

The fee received, less the estimate of the loss for the credit exposure, was recognized in earnings at the time of the transaction.

Derivatives Designated as Hedging Instruments

The Company has entered into four interest rate swap contracts that were designated as cash flow hedges. The interest rate swaps have a total notional amount of $200.0 million, $85.0 million with an original maturity of three years and $115.0 million with and original maturity of four years. The Company's risk management objective for these hedges is to reduce its exposure to variability in expected future cash flows related to interest payments on commercial loans benchmarked to the 1-month LIBOR rate. Therefore, the interest rate swaps convert the interest payments on the first $200.0 million of 1-month LIBOR based commercial loans into fixed rate payments.

The periodic net settlement of interest rate swaps is recorded as an adjustment to Interest and fees on loans in the Condensed Consolidated Statements of Income. For the nine months endedSeptember 30, 2015, there was a $1.5 million impact on interest income as a result of these interest rate swaps. Changes in the fair value of the effective portion of cash flow hedges are reported in OCI. When the cash flows associated with the hedged item are realized, the gain or loss included in OCI is recognized in "Interest and fees on loans," the same line item in the Condensed Consolidated Statements of Income as the income on the hedged items. The cash flow hedges were highly effective at September 30, 2015, and December 31, 2014, and changes in the fair value attributed to hedge ineffectiveness were not material.

The following table depicts the credit value adjustment recorded related to the notional amount of derivatives outstanding as well as the notional amount of risk participation agreements participated to other banks:

	September 30, 2015			December 31, 2014
	(dollars in thousands)
Derivatives not Designated as Hedging Instruments
Credit value adjustment	$	(688	)	$	(268	)
Notional Amount:
Interest rate derivatives	271,371			273,388
Interest rate caps	23,447			6,656
Risk participation agreements	124,116			113,624
Sold credit protection on risk participation agreements	(17,635		)	(17,296		)
Derivatives Designated as Hedging Instruments
Fair value adjustment	2,644			472
Notional Amount - Interest rate derivatives	200,000			100,000

The table below presents the amount representing the change in the fair value of derivative assets and derivative liabilities attributable to credit risk included in Other income on the Condensed Consolidated Statements of Income:

	For the Three Months Ended September 30,						For the Nine Months Ended September 30,
	2015			2014			2015			2014
	(dollars in thousands)
Non-hedging interest rate derivatives
(Decrease) increase in other income	$	(783	)	$	(108	)	$	(420	)	$	175
Hedging interest rate derivatives
Increase in interest and fees on loans	565			29			1,503			29
Increase in other expense	—			—			21			—

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Impairment of Investment Securities

9 Months Ended

Sep. 30, 2015

Impairment of Investment Securities Disclosure [Abstract]

Impairment of Investment Securities

Impairment of Investment Securities

Securities Available for Sale and Held to Maturity

As required by FASB ASC Topic 320, “Investments – Debt and Equity Securities,” credit related other-than-temporary impairment on debt securities is recognized in earnings, while non-credit related other-than-temporary impairment on debt securities not expected to be sold is recognized in OCI. During the nine months endedSeptember 30, 2015 and 2014, no other-than-temporary impairment charges were recognized.

First Commonwealth utilizes the specific identification method to determine the net gain or loss on debt securities and the average cost method to determine the net gain or loss on equity securities.

We review our investment portfolio on a quarterly basis for indications of impairment. This review includes analyzing the length of time and the extent to which the fair value has been lower than the cost, the financial condition and near-term prospects of the issuer, including any specific events which may influence the operations of the issuer and whether we are more likely than not to sell the security. We evaluate whether we are more likely than not to sell debt securities based upon our investment strategy for the particular type of security and our cash flow needs, liquidity position, capital adequacy, tax position and interest rate risk position. In addition, the risk of future other-than-temporary impairment may be influenced by additional bank failures, weakness in the U.S. economy, changes in real estate values and additional interest deferrals in our pooled trust preferred collateralized debt obligations. Our pooled trust preferred collateralized debt obligations are beneficial interests in securitized financial assets within the scope of FASB ASC Topic 325, “Investments – Other,” and are therefore evaluated for other-than-temporary impairment using management’s best estimate of future cash flows. If these estimated cash flows indicate that it is probable that an adverse change in cash flows has occurred, then other-than-temporary impairment would be recognized in accordance with FASB ASC Topic 320. There is a risk that First Commonwealth will record other-than-temporary impairment charges in the future. See Note 10, “Fair Values of Assets and Liabilities,” for additional information.

The following table presents the gross unrealized losses and estimated fair values at September 30, 2015 for both available for sale and held to maturity securities by investment category and time frame for which securities have been in a continuous unrealized loss position:

	Less Than 12 Months						12 Months or More					Total
	Estimated Fair Value		Gross Unrealized Losses				Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses
	(dollars in thousands)
Obligations of U.S. Government Agencies:
Mortgage-Backed Securities – Residential	$	2,240	$	—		(a)	$	—	$	—		$	2,240	$	—
Obligations of U.S. Government-Sponsored Enterprises:
Mortgage-Backed Securities – Residential	78,300		(242		)		277,333		(4,610		)	355,633		(4,852		)
Other Government-Sponsored Enterprises	10,091		(9		)		91,570		(82		)	101,661		(91		)
Obligations of States and Political Subdivisions	7,123		(55		)		—		—			7,123		(55		)
Pooled Trust Preferred Collateralized Debt Obligations	—		—				30,068		(7,237		)	30,068		(7,237		)
Total Securities	$	97,754	$	(306	)		$	398,971	$	(11,929	)	$	496,725	$	(12,235	)

(a) less than $1 thousand.

At September 30, 2015, fixed income securities issued by U.S. Government-sponsored enterprises comprised 40% of total unrealized losses due to changes in market interest rates. Pooled trust preferred collateralized debt obligations accounted for 59% of the unrealized losses primarily due to the illiquid market for this investment type. Obligations of state and political subdivisions account for the remaining 1% of total unrealized losses as a result of changes in market interest rates. At September 30, 2015, there are 45 debt securities in an unrealized loss position.

The following table presents the gross unrealized losses and estimated fair values at December 31, 2014 by investment category and time frame for which securities have been in a continuous unrealized loss position:

	Less Than 12 Months					12 Months or More					Total
	Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses
	(dollars in thousands)
Obligations of U.S. Government Agencies:
Mortgage-Backed Securities – Residential	$	2,318	$	(3	)	$	—	$	—		$	2,318	$	(3	)
Obligations of U.S. Government-Sponsored Enterprises:
Mortgage-Backed Securities – Residential	111,646		(419		)	368,706		(9,411		)	480,352		(9,830		)
Other Government-Sponsored Enterprises	112,473		(229		)	130,401		(1,079		)	242,874		(1,308		)
Obligation of States and Political Subdivisions	3,146		(43		)	—		—			3,146		(43		)
Pooled Trust Preferred Collateralized Debt Obligations	—		—			24,356		(13,236		)	24,356		(13,236		)
Total Securities	$	229,583	$	(694	)	$	523,463	$	(23,726	)	$	753,046	$	(24,420	)

As of September 30, 2015, our corporate securities had an amortized cost and an estimated fair value of $1.9 million and $2.3 million, respectively. As of December 31, 2014, our corporate securities had an amortized cost and estimated fair value of $6.7 million and $7.3 million, respectively. Corporate securities are comprised of single issue trust preferred securities issued primarily by large regional banks. There were no corporate securities in an unrealized loss position as of September 30, 2015 and December 31, 2014. When unrealized losses exist on these investments, management reviews each of the issuer’s asset quality, earnings trends and capital position, to determine whether issues in an unrealized loss position were other-than-temporarily impaired. All interest payments on the corporate securities are being made as contractually required.

As of September 30, 2015, the book value of our pooled trust preferred collateralized debt obligations totaled $42.0 million with an estimated fair value of $35.8 million, which includes securities comprised of 275 banks and other financial institutions. All of our pooled securities are mezzanine tranches, three of which now have no senior class remaining in the issue. The credit ratings on all of our issues are below investment grade. At the time of initial issue, the subordinated tranches ranged in size from approximately 7% to 35% of the total principal amount of the respective securities and no more than 5% of any pooled security consisted of a security issued by any one institution. As of September 30, 2015, after taking into account management’s best estimates of future interest deferrals and defaults, four of our securities had no excess subordination in the tranches we own and five of our securities had excess subordination which ranged from 10% to 84% of the current performing collateral.

The following table provides information related to our pooled trust preferred collateralized debt obligations as of September 30, 2015:

Deal	Class	Book Value		Estimated Fair Value		Unrealized Gain (Loss)			Moody’s/ Fitch Ratings	Number of Banks	Deferrals and Defaults as a % of Current Collateral		Excess Subordination as a % of Current Performing Collateral
(dollars in thousands)
Pre TSL IV	Mezzanine	$	1,830	$	1,337	$	(493	)	B1/BB	6	18.05	%	57.96	%
Pre TSL VII	Mezzanine	2,905		3,494		589			Ca/-	14	49.68		—
Pre TSL VIII	Mezzanine	2,000		1,865		(135		)	C/C	29	56.74		—
Pre TSL IX	Mezzanine	2,367		1,811		(556		)	B1/C	38	29.80		10.04
Pre TSL X	Mezzanine	1,583		1,921		338			Caa1/C	43	30.66		—
Pre TSL XII	Mezzanine	5,643		4,598		(1,045		)	B3/C	66	23.07		—
Pre TSL XIII	Mezzanine	12,646		10,704		(1,942		)	B3/C	56	12.05		26.32
Pre TSL XIV	Mezzanine	12,818		9,752		(3,066		)	Caa1/CC	56	19.72		43.57
MMCap I	Mezzanine	208		297		89			Ca/C	8	58.11		84.08
Total		$	42,000	$	35,779	$	(6,221	)

Lack of liquidity in the market for trust preferred collateralized debt obligations, below investment grade credit ratings and market uncertainties related to the financial industry are factors contributing to the impairment on these securities.

All of the Company's pooled trust preferred securities are included in the non-exclusive list issued by the regulatory agencies and therefore are not considered covered funds under the Volcker Rule.

On a quarterly basis we evaluate our debt securities for other-than-temporary impairment. During the nine months endedSeptember 30, 2015 and 2014, there were no credit related other-than-temporary impairment charges recognized on our pooled trust preferred collateralized debt obligations. When evaluating these investments, we determine a credit-related portion and a non-credit related portion of other-than-temporary impairment. The credit related portion is recognized in earnings and represents the difference between book value and the present value of future cash flows. The non-credit related portion is recognized in OCI and represents the difference between the fair value of the security and the amount of credit-related impairment. A discounted cash flow analysis provides the best estimate of credit-related other-than-temporary impairment for these securities.

Additional information related to the discounted cash flow analysis follows:

Our pooled trust preferred collateralized debt obligations are measured for other-than-temporary impairment within the scope of FASB ASC Topic 325 by determining whether it is probable that an adverse change in estimated cash flows has occurred. Determining whether there has been an adverse change in estimated cash flows from the cash flows previously projected involves comparing the present value of remaining cash flows previously projected against the present value of the cash flows estimated at September 30, 2015. We consider the discounted cash flow analysis to be our primary evidence when determining whether credit related other-than-temporary impairment exists.

Results of a discounted cash flow test are significantly affected by other variables, such as the estimate of future cash flows, credit worthiness of the underlying banks and determination of probability of default of the underlying collateral. The following provides additional information for each of these variables:

• Estimate of Future Cash Flows – Cash flows are constructed in an INTEX cash flow model which includes each deal’s structural features. Projected cash flows include prepayment assumptions, which are dependent on the issuer's asset size and coupon rate. For collateral issued by financial institutions over $15 billion in asset size with a coupon over 7%, a 100% prepayment rate is assumed. Financial institutions over $15 billion with a coupon of 7% or under are assigned a prepayment rate of 40% for two years and 2% thereafter. Financial institutions with assets between $2 billion and $15 billion with coupons over 7% are assigned a 5% prepayment rate. For financial institutions below $2 billion, if the coupon is over 10%, a prepayment rate of 5% is assumed and for all other issuers, there is no prepayment assumption incorporated into the cash flows. The modeled cash flows are then used to estimate if all the scheduled principal and interest payments of our investments will be returned.

• Credit Analysis – A quarterly credit evaluation is performed for each of the 275 banks comprising the collateral across the various pooled trust preferred securities. Our credit evaluation considers all evidence available to us and includes the nature of the issuer’s business, its years of operating history, corporate structure, loan composition, loan concentrations, deposit mix, asset growth rates, geographic footprint and local economic environment. Our analysis focuses on profitability, return on assets, shareholders’ equity, net interest margin, credit quality ratios, operating efficiency, capital adequacy and liquidity.

• Probability of Default – A probability of default is determined for each bank and is used to calculate the expected impact of future deferrals and defaults on our expected cash flows. Each bank in the collateral pool is assigned a probability of default for each year until maturity. Currently, any bank that is in default is assigned a 100% probability of default and a 0% projected recovery rate. All other banks in the pool are assigned a probability of default based on their unique credit characteristics and market indicators with a 10% projected recovery rate. For the majority of banks currently in deferral we assume the bank continues to defer and will eventually default and, therefore, a 100% probability of default is assigned. However, for some deferring collateral there is the possibility that they become current on interest or principal payments at some point in the future and in those cases a probability that the deferral will ultimately cure is assigned. The probability of default is updated quarterly. As of September 30, 2015, default probabilities for performing collateral ranged from 0.33% to 75%.

Our credit evaluation provides a basis for determining deferral and default probabilities for each underlying piece of collateral. Using the results of the credit evaluation, the next step of the process is to look at pricing of senior debt or credit default swaps for the issuer (or where such information is unavailable, for companies having similar credit profiles as the issuer). The pricing of these market indicators provides the information necessary to determine appropriate default probabilities for each bank.

In addition to the above factors, our evaluation of impairment also includes a stress test analysis which provides an estimate of excess subordination for each tranche. We stress the cash flows of each pool by increasing current default assumptions to the level of defaults that results in an adverse change in estimated cash flows. This stressed breakpoint is then used to calculate excess subordination levels for each pooled trust preferred security. The results of the stress test allow management to identify those pools that are at a greater risk for a future break in cash flows so that we can monitor banks in those pools more closely for potential deterioration of credit quality.

Our cash flow analysis as of September 30, 2015, indicates that no credit-related other-than-temporary impairment has occurred on our pooled trust preferred securities during the nine months endedSeptember 30, 2015. Based upon the analysis performed by management, it is probable that four of our pooled trust preferred securities will experience principal and interest shortfalls and therefore appropriate other-than-temporary charges were recorded in prior periods. These securities are identified in the table on page 15 with 0% “Excess Subordination as a Percentage of Current Performing Collateral.” For the remaining securities listed in that table, our analysis as of September 30, 2015 indicates it is probable that we will collect all contractual principal and interest payments. For four of those securities, PreTSL IX, PreTSL XIII, PreTSL XIV and MMCap I, other-than-temporary impairment charges were recorded in prior periods; however, due to improvement in the expected cash flows of these securities, it is now probable that all contractual payments will be received.

During 2008, 2009 and 2010, other-than-temporary impairment charges were recognized on all of our pooled trust preferred securities, except for PreTSL IV. Our cash flow analysis as of September 30, 2015, for all of these impaired securities indicates that it is now probable we will collect principal and interest in excess of what was estimated at the time other-than-temporary impairment charges were recorded. This change can be attributed to improvement in the underlying collateral for these securities and has resulted in the present value of estimated future principal and interest payments exceeding the securities' current book value. The excess for each bond of the present value of future cash flows over our current book value ranges from 21% to 136% and will be recognized as an adjustment to yield over the remaining life of these securities. The excess subordination recognized as an adjustment to yield is reflected in the following table as increases in cash flows expected to be collected.

The following table provides a cumulative roll forward of credit losses recognized in earnings for debt securities held and not intended to be sold:

	For the Three Months Ended September 30,						For the Nine Months Ended September 30,
	2015			2014			2015			2014
	(dollars in thousands)
Balance, beginning (a)	$	25,366		$	26,842		$	26,246		$	27,543
Credit losses on debt securities for which other-than-temporary impairment was not previously recognized	—			—			—			—
Additional credit losses on debt securities for which other-than-temporary impairment was previously recognized	—			—			—			—
Increases in cash flows expected to be collected, recognized over the remaining life of the security (b)	(255		)	(288		)	(917		)	(989		)
Reduction for debt securities called during the period	—			—			(218		)	—
Balance, ending	$	25,111		$	26,554		$	25,111		$	26,554

(a) The beginning balance represents credit related losses included in other-than-temporary impairment charges recognized on debt securities in prior periods.

(b) Represents the increase in cash flows recognized in interest income during the period.

In the first nine months of 2015 and 2014, no other-than-temporary impairment charges were recorded on equity securities. On a quarterly basis, management evaluates equity securities for other-than-temporary impairment by reviewing the severity and duration of decline in estimated fair value, research reports, analysts’ recommendations, credit rating changes, news stories, annual reports, regulatory filings, impact of interest rate changes and other relevant information. As of September 30, 2015 and 2014, there were no equity securities in an unrealized loss position.

Other Investments

As a member of the Federal Home Loan Bank ("FHLB"), First Commonwealth is required to purchase and hold stock in the FHLB to satisfy membership and borrowing requirements. The level of stock required to be held is dependent on the amount of First Commonwealth's mortgage-related assets and outstanding borrowings with the FHLB. This stock is restricted in that it can only be sold to the FHLB or to another member institution, and all sales of FHLB stock must be at par. As a result of these restrictions, FHLB stock is unlike other investment securities insofar as there is no trading market for FHLB stock and the transfer price is determined by FHLB membership rules and not by market participants. As of September 30, 2015 and December 31, 2014, our FHLB stock totaled $54.0 million and $44.5 million, respectively, and is included in “Other investments” on the Condensed Consolidated Statements of Financial Condition.

FHLB stock is held as a long-term investment and its value is determined based on the ultimate recoverability of the par value. First Commonwealth evaluates impairment quarterly and has concluded that the par value of its investment in FHLB stock will be recovered. Accordingly, no impairment charge was recorded on these securities during the nine months ended September 30, 2015.

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Loans and Allowance for Credit Losses - Allowance for Credit Losses (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Dec. 31, 2014	Sep. 30, 2014
Allowance for Doubtful Accounts Receivable [Roll Forward]
Beginning Balance	$ 45,344	$ 50,725	$ 52,051	$ 54,225
Charge-offs	(2,401)	(2,880)	(14,462)	(14,629)
Recoveries	954	866	2,111	2,567
Provision for Loan, Lease, and Other Losses	4,621	2,073	8,818	8,621
Ending Balance	45,344	50,725	52,051	54,225	$ 48,518	$ 52,051	$ 50,784
Ending balance: individually evaluated for impaired					4,255		4,632
Ending balance: collectively evaluated for impaired					44,263		46,152
Total					4,575,735	4,457,308	4,411,481
Ending balance: individually evaluated for impaired					34,595		37,716
Ending balance: collectively evaluated for impaired					4,541,140		4,373,765
Commercial, financial, agricultural and other [Member]
Allowance for Doubtful Accounts Receivable [Roll Forward]
Beginning Balance	23,755	21,956	29,627	22,663
Charge-offs	(639)	(498)	(8,579)	(8,357)
Recoveries	564	204	922	625
Provision for Loan, Lease, and Other Losses	3,520	(1,958)	5,230	4,773
Ending Balance	23,755	21,956	29,627	22,663	27,200	29,627	19,704
Ending balance: individually evaluated for impaired					4,202		4,271
Ending balance: collectively evaluated for impaired					22,998		15,433
Total					1,126,881	1,052,109	1,071,531
Ending balance: individually evaluated for impaired					22,852		23,773
Ending balance: collectively evaluated for impaired					1,104,029		1,047,758
Real estate construction [Member]
Allowance for Doubtful Accounts Receivable [Roll Forward]
Beginning Balance	1,518	5,899	2,063	6,600
Charge-offs	0	0	0	(296)
Recoveries	0	132	84	469
Provision for Loan, Lease, and Other Losses	75	2,073	(554)	1,331
Ending Balance	1,518	5,899	2,063	6,600	1,593	2,063	8,104
Ending balance: individually evaluated for impaired					0		0
Ending balance: collectively evaluated for impaired					1,593		8,104
Total					179,710	120,785	115,788
Ending balance: individually evaluated for impaired					0		199
Ending balance: collectively evaluated for impaired					179,710		115,589
Residential real estate [Member]
Allowance for Doubtful Accounts Receivable [Roll Forward]
Beginning Balance	2,923	6,125	3,664	7,727
Charge-offs	(301)	(551)	(1,351)	(2,286)
Recoveries	178	97	417	420
Provision for Loan, Lease, and Other Losses	(124)	(217)	(54)	(407)
Ending Balance	2,923	6,125	3,664	7,727	2,676	3,664	5,454
Ending balance: individually evaluated for impaired					20		332
Ending balance: collectively evaluated for impaired					2,656		5,122
Total					1,204,220	1,226,344	1,234,842
Ending balance: individually evaluated for impaired					6,037		6,854
Ending balance: collectively evaluated for impaired					1,198,183		1,227,988
Commercial Real Estate [Member]
Allowance for Doubtful Accounts Receivable [Roll Forward]
Beginning Balance	12,227	11,661	11,881	11,778
Charge-offs	(561)	(812)	(1,249)	(1,109)
Recoveries	33	177	186	432
Provision for Loan, Lease, and Other Losses	703	1,528	1,584	1,453
Ending Balance	12,227	11,661	11,881	11,778	12,402	11,881	12,554
Ending balance: individually evaluated for impaired					33		29
Ending balance: collectively evaluated for impaired					12,369		12,525
Total					1,435,954	1,405,256	1,345,302
Ending balance: individually evaluated for impaired					5,706		6,890
Ending balance: collectively evaluated for impaired					1,430,248		1,338,412
Loans to individuals [Member]
Allowance for Doubtful Accounts Receivable [Roll Forward]
Beginning Balance	4,921	5,084	4,816	5,457
Charge-offs	(900)	(1,019)	(3,283)	(2,581)
Recoveries	179	256	502	621
Provision for Loan, Lease, and Other Losses	447	647	2,612	1,471
Ending Balance	$ 4,921	$ 5,084	$ 4,816	$ 5,457	4,647	4,816	4,968
Ending balance: individually evaluated for impaired					0		0
Ending balance: collectively evaluated for impaired					4,647		4,968
Total					628,970	$ 652,814	644,018
Ending balance: individually evaluated for impaired					0		0
Ending balance: collectively evaluated for impaired					$ 628,970		$ 644,018

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Commitments and Contingent Liabilities

9 Months Ended

Sep. 30, 2015

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingent Liabilities

Commitments and Contingent Liabilities

Commitments and Letters of Credit

Standby letters of credit and commercial letters of credit are conditional commitments issued by First Commonwealth to guarantee the performance of a customer to a third party. The contract or notional amount of these instruments reflects the maximum amount of future payments that First Commonwealth could be required to pay under the guarantees if there were a total default by the guaranteed parties, without consideration of possible recoveries under recourse provisions or from collateral held or pledged. In addition, many of these commitments are expected to expire without being drawn upon; therefore, the total commitment amounts do not necessarily represent future cash requirements.

The following table identifies the notional amount of those instruments at:

	September 30, 2015		December 31, 2014
	(dollars in thousands)
Financial instruments whose contract amounts represent credit risk:
Commitments to extend credit	$	1,576,245	$	1,635,948
Financial standby letters of credit	20,089		36,075
Performance standby letters of credit	26,317		25,915
Commercial letters of credit	2,023		2,611

The notional amounts outstanding as of September 30, 2015 include amounts issued in 2015 of $7.8 million in financial standby letters of credit and $2.3 million in performance standby letters of credit. There have been no commercial letters of credit issued during 2015. A liability of $0.2 million has been recorded as of September 30, 2015 and December 31, 2014, which represents the estimated fair value of letters of credit issued. The fair value of letters of credit is estimated based on the unrecognized portion of fees received at the time the commitment was issued.

Unused commitments and letters of credit provide exposure to future credit loss in the event of nonperformance by the borrower or guaranteed parties. Management’s evaluation of the credit risk related to these commitments resulted in the recording of a liability of $3.8 million as of September 30, 2015 and $3.1 million as of December 31, 2014. This liability is reflected in "Other liabilities" in the Condensed Consolidated Statements of Financial Condition. The credit risk evaluation incorporated probability of default, loss given default and estimated utilization for the next twelve months for each loan category and the letters of credit.

Legal Proceedings

There are no material legal proceedings to which First Commonwealth or its subsidiaries are a party, or of which their property is the subject, except proceedings which arise in the normal course of business and, in the opinion of management, will not have a material adverse effect on the consolidated operations, financial position, comprehensive income or cash flow of First Commonwealth or its subsidiaries.

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Investment Securities

9 Months Ended

Sep. 30, 2015

Investment Securities [Abstract]

Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]

Investment Securities

Securities Available for Sale

Below is an analysis of the amortized cost and estimated fair values of securities available for sale at:

	September 30, 2015									December 31, 2014
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
	(dollars in thousands)
Obligations of U.S. Government Agencies:
Mortgage-Backed Securities – Residential	$	20,902	$	2,379	$	—		$	23,281	$	23,344	$	2,595	$	(3	)	$	25,936
Obligations of U.S. Government-Sponsored Enterprises:
Mortgage-Backed Securities – Residential	816,179		12,819		(4,846		)	824,152		947,635		13,076		(9,830		)	950,881
Mortgage-Backed Securities – Commercial	37		1		—			38		72		2		—			74
Other Government-Sponsored Enterprises	135,853		19		(91		)	135,781		269,181		4		(1,308		)	267,877
Obligations of States and Political Subdivisions	27,064		397		(12		)	27,449		27,058		362		(43		)	27,377
Corporate Securities	1,895		438		—			2,333		6,682		573		—			7,255
Pooled Trust Preferred Collateralized Debt Obligations	42,000		1,016		(7,237		)	35,779		41,926		309		(13,236		)	28,999
Total Debt Securities	1,043,930		17,069		(12,186		)	1,048,813		1,315,898		16,921		(24,420		)	1,308,399
Equities	1,920		—		—			1,920		1,420		—		—			1,420
Total Securities Available for Sale	$	1,045,850	$	17,069	$	(12,186	)	$	1,050,733	$	1,317,318	$	16,921	$	(24,420	)	$	1,309,819

Mortgage backed securities include mortgage backed obligations of U.S. Government agencies and obligations of U.S. Government-sponsored enterprises. These obligations have contractual maturities ranging from less than one year to approximately 30 years with lower anticipated lives to maturity due to prepayments. All mortgage backed securities contain a certain amount of risk related to the uncertainty of prepayments of the underlying mortgages. Interest rate changes have a direct impact upon prepayment speeds; therefore, First Commonwealth uses computer simulation models to test the average life and yield volatility of all mortgage backed securities under various interest rate scenarios to monitor the potential impact on earnings and interest rate risk positions.

Expected maturities will differ from contractual maturities because issuers may have the right to call or repay obligations with or without call or prepayment penalties. Other fixed income securities within the portfolio also contain prepayment risk.

The amortized cost and estimated fair value of debt securities available for sale at September 30, 2015, by contractual maturity, are shown below.

	Amortized Cost		Estimated Fair Value
	(dollars in thousands)
Due within 1 year	$	3,000	$	3,000
Due after 1 but within 5 years	132,852		132,781
Due after 5 but within 10 years	25,657		26,031
Due after 10 years	45,303		39,530
	206,812		201,342
Mortgage-Backed Securities (a)	837,118		847,471
Total Debt Securities	$	1,043,930	$	1,048,813

(a) Mortgage Backed Securities include an amortized cost of $20.9 million and a fair value of $23.3 million for Obligations of U.S. Government agencies issued by Ginnie Mae and an amortized cost of $816.2 million and a fair value of $824.2 million for Obligations of U.S. Government-sponsored enterprises issued by Fannie Mae and Freddie Mac.

Proceeds from sales, gross gains (losses) realized on sales, maturities and other-than-temporary impairment charges related to securities available for sale were as follows for the nine months endedSeptember 30:

	2015		2014
	(dollars in thousands)
Proceeds from sales	$	—	$	132,868
Gross gains (losses) realized:
Sales Transactions:
Gross gains	$	—	$	489
Gross losses	—		(441		)
	—		48
Maturities and impairment
Gross gains	125		2
Gross losses	—		—
Other-than-temporary impairment	—		—
	125		2
Net gains and impairment	$	125	$	50

Securities available for sale with an estimated fair value of $480.1 million and $563.2 million were pledged as of September 30, 2015 and December 31, 2014, respectively, to secure public deposits and for other purposes required or permitted by law.

Securities Held to Maturity

Below is an analysis of the amortized cost and fair values of debt securities held to maturity at September 30, 2015. There were no held to maturity securities at December 31, 2014.

	September 30, 2015
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
	(dollars in thousands)
Obligations of U.S. Government Agencies:
Mortgage-Backed Securities – Residential	$	4,806	$	24	$	—		$	4,830
Obligations of U.S. Government-Sponsored Enterprises:
Mortgage-Backed Securities – Residential	$	116,065	$	520	$	(6	)	$	116,579
Mortgage-Backed Securities – Commercial	15,299		176		—			15,475
Obligations of States and Political Subdivisions	17,865		131		(43		)	17,953
Total Securities Held to Maturity	$	154,035	$	851	$	(49	)	$	154,837

The amortized cost and estimated fair value of debt securities held to maturity at September 30, 2015, by contractual maturity, are shown below. Expected maturities will differ from contractual maturities because borrowers may have the right to call or repay obligations with or without call or prepayment penalties.

	Amortized Cost		Estimated Fair Value
	(dollars in thousands)
Due within 1 year	$	—	$	—
Due after 1 but within 5 years	—		—
Due after 5 but within 10 years	12,210		12,303
Due after 10 years	5,655		5,650
	17,865		17,953
Mortgage-Backed Securities (a)	136,170		136,884
Total Debt Securities	$	154,035	$	154,837

(a) Mortgage Backed Securities include an amortized cost of $4.8 million and a fair value of $4.8 million for Obligations of U.S. Government agencies issued by Ginnie Mae and an amortized cost of $131.4 million and a fair value of $132.1 million for Obligations of U.S. Government-sponsored enterprises issued by Fannie Mae and Freddie Mac.

Securities held to maturity with an amortized cost of $16.5 million were pledged as of September 30, 2015 to secure public deposits and for other purposes required or permitted by law.

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Loans and Allowance for Credit Losses

9 Months Ended

Sep. 30, 2015

Loans and Leases Receivable Disclosure [Abstract]

Loans and Allowance for Credit Losses

Loans and Allowance for Credit Losses

The following table provides outstanding balances related to each of our loan types:

	September 30, 2015		December 31, 2014
	(dollars in thousands)
Commercial, financial, agricultural and other	$	1,126,881	$	1,052,109
Real estate construction	179,710		120,785
Residential real estate	1,204,220		1,226,344
Commercial real estate	1,435,954		1,405,256
Loans to individuals	628,970		652,814
Total loans and leases net of unearned income	$	4,575,735	$	4,457,308

Credit Quality Information

As part of the on-going monitoring of credit quality within the loan portfolio, the following credit worthiness categories are used in grading our loans:

Pass Acceptable levels of risk exist in the relationship. Includes all loans not classified as OAEM, substandard or doubtful.

Other Assets Especially Mentioned (OAEM) Potential weaknesses that deserve management’s close attention. The potential weaknesses may result in deterioration of the repayment prospects or weaken the Company’s credit position at some future date. The credit risk may be relatively minor, yet constitute an undesirable risk in light of the circumstances surrounding the specific credit. No loss of principal or interest is expected.

Substandard Well-defined weakness or a weakness that jeopardizes the repayment of the debt. A loan may be classified as substandard as a result of deterioration of the borrower’s financial condition and repayment capacity. Loans for which repayment plans have not been met or collateral equity margins do not protect the Company may also be classified as substandard.

Doubtful Loans with the characteristics of substandard loans with the added characteristic that collection or liquidation in full, on the basis of presently existing facts and conditions, is highly improbable.

The use of creditworthiness categories to grade loans permits management’s use of migration analysis to estimate a portion of credit risk. The Company’s internal creditworthiness grading system provides a measurement of credit risk based primarily on an evaluation of the borrower’s cash flow and collateral. Movement between these rating categories provides a predictive measure of credit losses and therefore assists in determining the appropriate level for the loan loss reserves. Category ratings are reviewed each quarter, at which time management analyzes the results, as well as other external statistics and factors related to loan performance. Loans that migrate towards higher risk rating levels generally have an increased risk of default, whereas loans that migrate toward lower risk ratings generally will result in a lower risk factor being applied to those related loan balances.

The following tables represent our credit risk profile by creditworthiness:

	September 30, 2015
	Commercial, financial, agricultural and other		Real estate construction		Residential real estate		Commercial real estate		Loans to individuals		Total
	(dollars in thousands)
Pass	$	1,043,458	$	179,229	$	1,192,888	$	1,394,506	$	628,735	$	4,438,816
Non-Pass
OAEM	22,447		450		2,926		29,373		—		55,196
Substandard	60,976		31		8,406		12,075		235		81,723
Doubtful	—		—		—		—		—		—
Total Non-Pass	83,423		481		11,332		41,448		235		136,919
Total	$	1,126,881	$	179,710	$	1,204,220	$	1,435,954	$	628,970	$	4,575,735

	December 31, 2014
	Commercial, financial, agricultural and other		Real estate construction		Residential real estate		Commercial real estate		Loans to individuals		Total
	(dollars in thousands)
Pass	$	983,357	$	112,536	$	1,214,920	$	1,353,773	$	652,596	$	4,317,182
Non-Pass
OAEM	32,563		8,013		2,315		29,479		—		72,370
Substandard	32,028		236		9,109		22,004		218		63,595
Doubtful	4,161		—		—		—		—		4,161
Total Non-Pass	68,752		8,249		11,424		51,483		218		140,126
Total	$	1,052,109	$	120,785	$	1,226,344	$	1,405,256	$	652,814	$	4,457,308

Portfolio Risks

The credit quality of our loan portfolio can potentially represent significant risk to our earnings, capital, regulatory agency relationships, investment community reputation and shareholder returns. First Commonwealth devotes a substantial amount of resources managing this risk primarily through our credit administration department that develops and administers policies and procedures for underwriting, maintaining, monitoring and collecting activities. Credit administration is independent of lending departments and oversight is provided by the credit committee of the First Commonwealth Board of Directors.

Criticized loans have been evaluated when determining the appropriateness of the allowance for credit losses, which we believe is adequate to absorb losses inherent to the portfolio as of September 30, 2015. However, changes in economic conditions, interest rates, borrower financial condition, delinquency trends or previously established fair values of collateral factors could significantly change those judgmental estimates.

Age Analysis of Past Due Loans by Segment

The following tables delineate the aging analysis of the recorded investments in past due loans as of September 30, 2015 and December 31, 2014. Also included in these tables are loans that are 90 days or more past due and still accruing because they are well-secured and in the process of collection.

	September 30, 2015
	30 - 59 days past due		60 - 89 days past due		90 days and greater and still accruing		Nonaccrual		Total past due and nonaccrual		Current		Total
	(dollars in thousands)
Commercial, financial, agricultural and other	$	3,817	$	59	$	149	$	17,334	$	21,359	$	1,105,522	$	1,126,881
Real estate construction	—		—		—		31		31		179,679		179,710
Residential real estate	3,562		1,187		618		6,563		11,930		1,192,290		1,204,220
Commercial real estate	35		442		331		4,640		5,448		1,430,506		1,435,954
Loans to individuals	2,624		756		956		235		4,571		624,399		628,970
Total	$	10,038	$	2,444	$	2,054	$	28,803	$	43,339	$	4,532,396	$	4,575,735

	December 31, 2014
	30 - 59 days past due		60 - 89 days past due		90 days and greater and still accruing		Nonaccrual		Total past due and nonaccrual		Current		Total
	(dollars in thousands)
Commercial, financial, agricultural and other	$	2,816	$	213	$	264	$	27,007	$	30,300	$	1,021,809	$	1,052,109
Real estate construction	—		1		—		236		237		120,548		120,785
Residential real estate	5,162		1,295		1,077		7,900		15,434		1,210,910		1,226,344
Commercial real estate	1,797		122		—		7,306		9,225		1,396,031		1,405,256
Loans to individuals	3,698		1,059		1,278		218		6,253		646,561		652,814
Total	$	13,473	$	2,690	$	2,619	$	42,667	$	61,449	$	4,395,859	$	4,457,308

Nonaccrual Loans

The previous tables summarize nonaccrual loans by loan segment. The Company generally places loans on nonaccrual status when the full and timely collection of interest or principal becomes uncertain, when part of the principal balance has been charged off and no restructuring has occurred, or the loans reach a certain number of days past due. Generally, loans 90 days or more past due are placed on nonaccrual status, except for consumer loans, which are placed in nonaccrual status at 150 days past due.

When a loan is placed on nonaccrual, the accrued unpaid interest receivable is reversed against interest income and all future payments received are applied as a reduction to the loan principal. Generally, the loan is returned to accrual status when (a) all delinquent interest and principal becomes current under the terms of the loan agreement or (b) the loan is both well-secured and in the process of collection and collectability is no longer in doubt.

Impaired Loans

Management considers loans to be impaired when, based on current information and events, it is determined that the Company will not be able to collect all amounts due according to the loan contract, including scheduled interest payments. Determination of impairment is treated the same across all loan categories. When management identifies a loan as impaired, the impairment is measured based on the present value of expected future cash flows, discounted at the loan’s effective interest rate, except when the sole source for repayment of the loan is the operation or liquidation of collateral. When the loan is collateral dependent, the appraised value less estimated cost to sell is utilized. If management determines the value of the impaired loan is less than the recorded investment in the loan, impairment is recognized through an allowance estimate or a charge-off to the allowance. Troubled debt restructured loans on accrual status are also considered to be impaired loans.

When the ultimate collectability of the total principal of an impaired loan is in doubt and the loan is on nonaccrual status, all payments are applied to principal under the cost recovery method. When the ultimate collectability of the total principal of an impaired loan is not in doubt and the loan is on nonaccrual status, contractual interest is credited to interest income when received under the cash basis method.

There were no impaired loans held for sale at September 30, 2015 and December 31, 2014. During the nine months endedSeptember 30, 2015, $2.4 million of impaired loans were sold, resulting in the recognition of a gain of $0.4 million. During the nine months endedSeptember 30, 2014, $3.1 million of impaired loans were sold, resulting in the recognition of a gain of $0.1 million.

Significant nonaccrual loans as of September 30, 2015, include the following:

• $6.1 million relationship of commercial industrial loans to an industrial manufacturer. These loans were originated in 2013 and were placed in nonaccrual status during the third quarter of 2015. A valuation of the collateral was completed during the third quarter of 2015.

• $5.7 million relationship of commercial industrial loans to a local energy company. These loans were originated from 2008 to 2011 and were placed in nonaccrual status during the third quarter of 2013. Two of these loans were modified resulting in TDR classification: one loan totaling $2.3 million was modified in 2012, and the other loan totaling $2.9 million was modified in 2014. During the nine months endedSeptember 30, 2015, charge-offs of $3.3 million related to this relationship were recorded. A valuation of the collateral was updated during the first quarter of 2015.

The following tables include the recorded investment and unpaid principal balance for impaired loans with the associated allowance amount, if applicable, as of September 30, 2015 and December 31, 2014. Also presented are the average recorded investment in impaired loans and the related amount of interest recognized while the loan was considered impaired. Average balances are calculated using month-end balances of the loans for the period reported and are included in the table below based on their period-end allowance position.

	September 30, 2015						December 31, 2014
	Recorded investment		Unpaid principal balance		Related allowance		Recorded investment		Unpaid principal balance		Related allowance
	(dollars in thousands)
With no related allowance recorded:
Commercial, financial, agricultural and other	$	10,581	$	15,618			$	9,439	$	10,937
Real estate construction	31		119				236		476
Residential real estate	9,778		11,399				10,773		12,470
Commercial real estate	6,885		7,862				8,768		10,178
Loans to individuals	296		358				288		337
Subtotal	27,571		35,356				29,504		34,398
With an allowance recorded:
Commercial, financial, agricultural and other	12,812		13,254		4,202		24,826		25,583		9,304
Real estate construction	—		—		—		—		—		—
Residential real estate	364		556		20		367		380		56
Commercial real estate	80		80		33		554		554		101
Loans to individuals	—		—		—		—		—		—
Subtotal	13,256		13,890		4,255		25,747		26,517		9,461
Total	$	40,827	$	49,246	$	4,255	$	55,251	$	60,915	$	9,461

	For the Nine Months Ended September 30,
	2015				2014
	Average recorded investment		Interest Income Recognized		Average recorded investment		Interest Income Recognized
	(dollars in thousands)
With no related allowance recorded:
Commercial, financial, agricultural and other	$	19,199	$	161	$	15,209	$	77
Real estate construction	102		—		1,506		19
Residential real estate	10,987		118		11,047		167
Commercial real estate	8,545		69		9,007		78
Loans to individuals	312		14		309		3
Subtotal	39,145		362		37,078		344
With an allowance recorded:
Commercial, financial, agricultural and other	6,125		100		11,944		125
Real estate construction	—		—		—		—
Residential real estate	275		—		1,178		12
Commercial real estate	83		4		90		3
Loans to individuals	—		—		—		—
Subtotal	6,483		104		13,212		140
Total	$	45,628	$	466	$	50,290	$	484

	For the Three Months Ended September 30,
	2015				2014
	Average recorded investment		Interest Income Recognized		Average recorded investment		Interest Income Recognized
	(dollars in thousands)
With no related allowance recorded:
Commercial, financial, agricultural and other	$	14,215	$	40	$	10,973	$	39
Real estate construction	32		—		295		1
Residential real estate	10,748		39		10,590		38
Commercial real estate	7,894		26		8,873		24
Loans to individuals	314		5		346		1
Subtotal	33,203		110		31,077		103
With an allowance recorded:
Commercial, financial, agricultural and other	7,700		29		14,140		48
Real estate construction	—		—		—		—
Residential real estate	351		—		1,406		3
Commercial real estate	81		1		88		2
Loans to individuals	—		—		—		—
Subtotal	8,132		30		15,634		53
Total	$	41,335	$	140	$	46,711	$	156

Unfunded commitments related to nonperforming loans were $0.5 million at September 30, 2015 and $46 thousand at December 31, 2014. After consideration of available collateral related to these commitments, a reserve of $13 thousand and $14 thousand was established for these off balance sheet exposures at September 30, 2015 and December 31, 2014, respectively.

Troubled debt restructured loans are those loans whose terms have been renegotiated to provide a reduction or deferral of principal or interest as a result of the financial difficulties experienced by the borrower, who could not obtain comparable terms from alternate financing sources.

The following table provides detail as to the total troubled debt restructured loans and total commitments outstanding on troubled debt restructured loans:

	September 30, 2015		December 31, 2014
	(dollars in thousands)
Troubled debt restructured loans
Accrual status	$	12,024	$	12,584
Nonaccrual status	8,583		16,952
Total	$	20,607	$	29,536
Commitments
Unused lines of credit	$	1,162	$	4,120

The following tables provide detail, including specific reserves and reasons for modification, related to loans identified as troubled debt restructurings:

	For the Nine Months Ended September 30, 2015
		Type of Modification
	Number of Contracts	Extend Maturity		Modify Rate		Modify Payments		Total Pre-Modification Outstanding Recorded Investment		Post- Modification Outstanding Recorded Investment		Specific Reserve
	(dollars in thousands)
Commercial, financial, agricultural and other	4	$	1,751	$	—	$	652	$	2,403	$	2,314	$	52
Residential real estate	24	—		296		958		1,254		1,165		—
Commercial real estate	1	—		—		464		464		407		—
Loans to individuals	8	—		61		35		96		77		—
Total	37	$	1,751	$	357	$	2,109	$	4,217	$	3,963	$	52

	For the Nine Months Ended September 30, 2014
		Type of Modification
	Number of Contracts	Extend Maturity		Modify Rate		Modify Payments		Total Pre-Modification Outstanding Recorded Investment		Post- Modification Outstanding Recorded Investment		Specific Reserve
	(dollars in thousands)
Commercial, financial, agricultural and other	2	$	1,505	$	—	$	—	$	1,505	$	1,648	$	27
Residential real estate	44	—		468		1,767		2,235		2,091		22
Commercial real estate	1	—		—		8		8		6		—
Loans to individuals	13	—		81		42		123		101		—
Total	60	$	1,505	$	549	$	1,817	$	3,871	$	3,846	$	49

The troubled debt restructurings included in the above tables are also included in the impaired loan tables provided earlier in this note. Loans defined as modified due to a change in rate may include loans that were modified for a change in rate as well as a reamortization of the principal and an extension of the maturity. For the nine months endedSeptember 30, 2015 and 2014, $0.4 million and $0.5 million, respectively, of total rate modifications represent loans with modifications to the rate as well as payment as a result of reamortization. For both 2015 and 2014 the changes in loan balances between the pre-modification balance and the post-modification balance are due to customer payments.

The following tables provide detail, including specific reserves and reasons for modification, related to loans identified as troubled debt restructurings:

	For the Three Months Ended September 30, 2015
		Type of Modification
	Number of Contracts	Extend Maturity		Modify Rate		Modify Payments		Total Pre-Modification Outstanding Recorded Investment		Post- Modification Outstanding Recorded Investment		Specific Reserve
	(dollars in thousands)
Commercial, financial, agricultural and other	1	$	—	$	—	$	543	$	543	$	525	$	—
Residential real estate	8	$	—	$	—	$	455	$	455	$	455	$	—
Loans to individuals	2	—		—		18		18		16		—
Total	11	$	—	$	—	$	1,016	$	1,016	$	996	$	—

	For the Three Months Ended, September 30, 2014
		Type of Modification
	Number of Contracts	Extend Maturity		Modify Rate		Modify Payments		Total Pre-Modification Outstanding Recorded Investment		Post- Modification Outstanding Recorded Investment		Specific Reserve
	(dollars in thousands)
Residential real estate	24	—		164		1,116		1,280		1,233		2
Loans to individuals	3	—		8		15		23		20		—
Total	27	$	—	$	172	$	1,131	$	1,303	$	1,253	$	2

The troubled debt restructurings included in the above tables are also included in the impaired loan tables provided earlier in this note. Loans defined as modified due to a change in rate may include loans that were modified for a change in rate as well as a reamortization of the principal and an extension of the maturity. None of the rate modifications for the three months endedSeptember 30, 2015 represent loans with modifications to the rate as well as payment. For the three months endedSeptember 30, 2014, $0.1 million of total rate modifications represent loans with modifications to the rate as well as payment as a result of reamortization. For both 2015 and 2014 the changes in loan balances between the pre-modification balance and the post-modification balance are due to customer payments.

A troubled debt restructuring is considered to be in default when a restructured loan is 90 days or more past due. The following table provides information related to restructured loans that were considered to be in default during the nine months endedSeptember 30:

	2015			2014
	Number of Contracts	Recorded Investment		Number of Contracts	Recorded Investment
	(dollars in thousands)
Residential real estate	3	$	108	3	$	18
Total	3	$	108	3	$	18

The following table provides information related to restructured loans that were considered to be in default during the three months endedSeptember 30:

	2015			2014
	Number of Contracts	Recorded Investment		Number of Contracts	Recorded Investment
	(dollars in thousands)
Residential real estate	2	$	105	1	$	5
Total	2	$	105	1	$	5

The following tables provide detail related to the allowance for credit losses:

	For the Nine Months Ended September 30, 2015
	Commercial, financial, agricultural and other			Real estate construction			Residential real estate			Commercial real estate			Loans to individuals			Total
	(dollars in thousands)
Allowance for credit losses:
Beginning Balance	$	29,627		$	2,063		$	3,664		$	11,881		$	4,816		$	52,051
Charge-offs	(8,579		)	—			(1,351		)	(1,249		)	(3,283		)	(14,462		)
Recoveries	922			84			417			186			502			2,111
Provision (credit)	5,230			(554		)	(54		)	1,584			2,612			8,818
Ending Balance	$	27,200		$	1,593		$	2,676		$	12,402		$	4,647		$	48,518
Ending balance: individually evaluated for impairment	$	4,202		$	—		$	20		$	33		$	—		$	4,255
Ending balance: collectively evaluated for impairment	22,998			1,593			2,656			12,369			4,647			44,263
Loans:
Ending balance	1,126,881			179,710			1,204,220			1,435,954			628,970			4,575,735
Ending balance: individually evaluated for impairment	22,852			—			6,037			5,706			—			34,595
Ending balance: collectively evaluated for impairment	1,104,029			179,710			1,198,183			1,430,248			628,970			4,541,140

	For the Nine Months Ended September 30, 2014
	Commercial, financial, agricultural and other			Real estate construction			Residential real estate			Commercial real estate			Loans to individuals			Total
	(dollars in thousands)
Allowance for credit losses:
Beginning Balance	$	22,663		$	6,600		$	7,727		$	11,778		$	5,457		$	54,225
Charge-offs	(8,357		)	(296		)	(2,286		)	(1,109		)	(2,581		)	(14,629		)
Recoveries	625			469			420			432			621			2,567
Provision (credit)	4,773			1,331			(407		)	1,453			1,471			8,621
Ending Balance	$	19,704		$	8,104		$	5,454		$	12,554		$	4,968		$	50,784
Ending balance: individually evaluated for impairment	$	4,271		$	—		$	332		$	29		$	—		$	4,632
Ending balance: collectively evaluated for impairment	15,433			8,104			5,122			12,525			4,968			46,152
Loans:
Ending balance	1,071,531			115,788			1,234,842			1,345,302			644,018			4,411,481
Ending balance: individually evaluated for impairment	23,773			199			6,854			6,890			—			37,716
Ending balance: collectively evaluated for impairment	1,047,758			115,589			1,227,988			1,338,412			644,018			4,373,765

	For the Three Months Ended September 30, 2015
	Commercial, financial, agricultural and other			Real estate construction		Residential real estate			Commercial real estate			Loans to individuals			Total
	(dollars in thousands)
Allowance for credit losses:
Beginning Balance	$	23,755		$	1,518	$	2,923		$	12,227		$	4,921		$	45,344
Charge-offs	(639		)	—		(301		)	(561		)	(900		)	(2,401		)
Recoveries	564			—		178			33			179			954
Provision (credit)	3,520			75		(124		)	703			447			4,621
Ending Balance	$	27,200		$	1,593	$	2,676		$	12,402		$	4,647		$	48,518

	For the Three Months Ended, September 30, 2014
	Commercial, financial, agricultural and other			Real estate construction		Residential real estate			Commercial real estate			Loans to individuals			Total
	(dollars in thousands)
Allowance for credit losses:
Beginning Balance	$	21,956		$	5,899	$	6,125		$	11,661		$	5,084		$	50,725
Charge-offs	(498		)	—		(551		)	(812		)	(1,019		)	(2,880		)
Recoveries	204			132		97			177			256			866
Provision (credit)	(1,958		)	2,073		(217		)	1,528			647			2,073
Ending Balance	$	19,704		$	8,104	$	5,454		$	12,554		$	4,968		$	50,784

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Fair Values of Assets and Liabilities - Additional Information (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Assets, Level 1 to Level 2 Transfers, Description	$ 0	$ 0	$ 0	$ 0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3	0	0	0	3,035,000
Impaired loans considered to be credit risk of non-collection	100,000		100,000
Updated appraisal requirement floor	250,000		250,000
Other real estate owned	10,542,000		10,542,000		$ 7,197,000
Financial instrument of credit risk	$ 200,000		200,000		$ 200,000
Fair Value, Assets Measured on Recurring Basis, Gain (Loss) Included in Other Income, Assets and Liabilities Continue to be held			$ 0	0
Loans Held For Sale [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3		$ 0		$ 3,035,000
Minimum [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Swap Rates Term Used to Determine Yield Curve			3 years
Maximum [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Swap Rates Term Used to Determine Yield Curve			30 years

XML

Fair Values of Assets and Liabilities - Losses Realized on Assets Measured on Non-Recurring Basis (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Fair Value Disclosures [Abstract]
Impaired loans	$ (2,838)	$ 456	$ (3,532)	$ (1,291)
Other real estate owned	(78)	(51)	(1,205)	(1,109)
Total losses	$ (2,916)	$ 405	$ (4,737)	$ (2,400)

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Fair Values of Assets and Liabilities - Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands	Sep. 30, 2015		Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	$ 1,050,733		$ 1,309,819
Other investments	53,976		44,545
Loans Held for Sale	4,986		2,502
Other Assets	16,303	[1]	11,186	[2]
Total Assets	1,125,998		1,368,052
Other Liabilities	14,333	[1]	10,671	[2]
Total Liabilities	14,333		10,671
Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	1,048,813		1,308,399
Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	1,920		1,420
US Government Agencies Residential Mortgage-backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	23,281		25,936
Residential Mortgage Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	824,152		950,881
Obligations of U.S. Government-Sponsored Enterprises - Mortgage-Backed Securities - Commercial [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	38		74
Obligations of U.S. Government-Sponsored Enterprises - Other Government-Sponsored Enterprises [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	135,781		267,877
Obligations of States and Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	27,449		27,377
Corporate Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	2,333		7,255
Pooled Trust Preferred Collateralized Debt Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	35,779		28,999
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	0		0
Other investments	0		0
Loans Held for Sale	0		0
Other Assets	0	[1]	0	[2]
Total Assets	0		0
Other Liabilities	0	[1]	0	[2]
Total Liabilities	0		0
Level 1 [Member] | Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	0		0
Level 1 [Member] | Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	0		0
Level 1 [Member] | US Government Agencies Residential Mortgage-backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	0		0
Level 1 [Member] | Residential Mortgage Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	0		0
Level 1 [Member] | Obligations of U.S. Government-Sponsored Enterprises - Mortgage-Backed Securities - Commercial [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	0		0
Level 1 [Member] | Obligations of U.S. Government-Sponsored Enterprises - Other Government-Sponsored Enterprises [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	0		0
Level 1 [Member] | Obligations of States and Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	0		0
Level 1 [Member] | Corporate Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	0		0
Level 1 [Member] | Pooled Trust Preferred Collateralized Debt Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	0		0
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	1,013,034		1,279,400
Other investments	53,976		44,545
Loans Held for Sale	4,986		2,502
Other Assets	16,303	[1]	11,186	[2]
Total Assets	1,088,299		1,337,633
Other Liabilities	14,333	[1]	10,671	[2]
Total Liabilities	14,333		10,671
Level 2 [Member] | Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	1,013,034		1,279,400
Level 2 [Member] | Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	0		0
Level 2 [Member] | US Government Agencies Residential Mortgage-backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	23,281		25,936
Level 2 [Member] | Residential Mortgage Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	824,152		950,881
Level 2 [Member] | Obligations of U.S. Government-Sponsored Enterprises - Mortgage-Backed Securities - Commercial [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	38		74
Level 2 [Member] | Obligations of U.S. Government-Sponsored Enterprises - Other Government-Sponsored Enterprises [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	135,781		267,877
Level 2 [Member] | Obligations of States and Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	27,449		27,377
Level 2 [Member] | Corporate Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	2,333		7,255
Level 2 [Member] | Pooled Trust Preferred Collateralized Debt Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	0		0
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	37,699		30,419
Other investments	0		0
Loans Held for Sale	0		0
Other Assets	0	[1]	0	[2]
Total Assets	37,699		30,419
Other Liabilities	0	[1]	0	[2]
Total Liabilities	0		0
Level 3 [Member] | Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	35,779		28,999
Level 3 [Member] | Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	1,920		1,420
Level 3 [Member] | US Government Agencies Residential Mortgage-backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	0		0
Level 3 [Member] | Residential Mortgage Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	0		0
Level 3 [Member] | Obligations of U.S. Government-Sponsored Enterprises - Mortgage-Backed Securities - Commercial [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	0		0
Level 3 [Member] | Obligations of U.S. Government-Sponsored Enterprises - Other Government-Sponsored Enterprises [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	0		0
Level 3 [Member] | Obligations of States and Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	0		0
Level 3 [Member] | Corporate Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	$ 0		0
Level 3 [Member] | Pooled Trust Preferred Collateralized Debt Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value			$ 28,999

[1] Hedging and non-hedging interest rate derivatives

[2] on-hedging interest rate derivatives

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Supplemental Comprehensive Income Disclosures (Details 2) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Beginning Balance			$ (4,499)	$ (20,588)
Other comprehensive income (loss) before reclassification adjustment	$ 4,123	$ (3,606)	8,133	10,961
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	978	(18)	1,412	(18)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax			9,545	10,943
Amounts reclassified from accumulated other comprehensive income (loss)			(85)	(31)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax	0	(1)	4	(1)
Total other comprehensive (loss) income	5,101	(3,654)	9,460	10,912
Accumulated Other Comprehensive Income (Loss), Ending Balance	4,961	(9,676)	4,961	(9,676)
Accumulated Net Unrealized Investment Gain (Loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Beginning Balance			(4,875)	(20,868)
Other comprehensive income (loss) before reclassification adjustment			8,133	10,961
Amounts reclassified from accumulated other comprehensive income (loss)			(81)	(32)
Total other comprehensive (loss) income			8,052	10,929
Accumulated Other Comprehensive Income (Loss), Ending Balance	3,177	(9,939)	3,177	(9,939)
Accumulated Defined Benefit Plans Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Beginning Balance			76	280
Other comprehensive income (loss) before reclassification adjustment			0	0
Amounts reclassified from accumulated other comprehensive income (loss)			0	0
Total other comprehensive (loss) income			0	0
Accumulated Other Comprehensive Income (Loss), Ending Balance	76	280	76	280
Derivative [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Beginning Balance			300	0
Total other comprehensive (loss) income			1,408	(17)
Accumulated Other Comprehensive Income (Loss), Ending Balance	$ 1,708	$ (17)	1,708	(17)
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total other comprehensive (loss) income			$ 9,460	$ 10,912

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Impairment of Investment Securities - Cumulative Roll Forward of Credit Losses Recognized in Earnings for Debt Securities Held and Not Intended to be Sold (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015		Sep. 30, 2014
Impairment of Investment Securities Disclosure [Abstract]
Balance, beginning (a)	$ 25,366	$ 26,842	$ 26,246	[1]	$ 27,543	[1]
Credit losses on debt securities for which other-than-temporary impairment was not previously recognized	0	0	0		0
Additional credit losses on debt securities for which other-than-temporary impairment was previously recognized	0	0	0		0
Balance, ending	25,111	26,554	25,111		26,554
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Reductions, Cash Flows	0	0	218		0
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Period Increase (Decrease)	$ 255	$ 288	$ 917		$ 989

[1] The beginning balance represents credit related losses included in other-than-temporary impairment charges recognized on debt securities in prior periods.

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New Accounting Pronouncements (Notes)

9 Months Ended

Sep. 30, 2015

Accounting Changes and Error Corrections [Abstract]

New Accounting Pronouncements

New Accounting Pronouncements

In January 2015, the FASB issued ASU No. 2015-01, "Income Statement - Extraordinary and Unusual Items (Subtopic 225-20)," which finalizes Proposed ASU No. 2014-220, and eliminates the concept of extraordinary items from U.S. GAAP. Accordingly, this ASU eliminates FASB ASC Subtopic 225-20, "Income Statement - Extraordinary and Unusual Items", which, until now, required that an entity separately classify, present, and disclose extraordinary events and transactions. This ASU is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2015. The adoption of this ASU is not expected to have a material impact on First Commonwealth’s financial condition or results of operations.

In September 2015, the FASB issued ASU No. 2015-16, "Business Combinations (Topic 805)," requires that the acquirer recognize adjustments to provisional amounts identified during the measurement period in the reporting period in which the adjustment amounts are determined. The adjustments are required to be presented separately on the face of the income statement or disclosed in the notes to show the portion of current-period earnings by line item that would have been recorded in previous reporting periods if the adjustments to the provisional amounts had been recognized as of the acquisition date. This ASU is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2015. The adoption of this ASU is not expected to have a material impact on First Commonwealth’s financial condition or results of operations.

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Commitments and Contingent Liabilities (Tables)

9 Months Ended

Sep. 30, 2015

Commitments and Contingencies Disclosure [Abstract]

Notional Amount of Outstanding Commitments

The following table identifies the notional amount of those instruments at:

	September 30, 2015		December 31, 2014
	(dollars in thousands)
Financial instruments whose contract amounts represent credit risk:
Commitments to extend credit	$	1,576,245	$	1,635,948
Financial standby letters of credit	20,089		36,075
Performance standby letters of credit	26,317		25,915
Commercial letters of credit	2,023		2,611

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Impairment of Investment Securities - Schedule of Unrealized Losses and Estimated Fair Values (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Schedule of Trading Securities and Other Trading Assets [Line Items]
Investment Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 97,754	$ 229,583
Investment Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	306	694
Investment Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	398,971	523,463
Investment Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	11,929	23,726
Investment Securities, Continuous Unrealized Loss Position, Fair Value, Total	496,725	753,046
Investment Securities, Continuous Unrealized Loss Position, Accumulated Loss	12,235	24,420
US Government Agencies Residential Mortgage-backed Securities [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Investment Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	2,240	2,318
Investment Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	0	3
Investment Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	0	0
Investment Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	0	0
Investment Securities, Continuous Unrealized Loss Position, Fair Value, Total	2,240	2,318
Investment Securities, Continuous Unrealized Loss Position, Accumulated Loss	0	3
Residential Mortgage Backed Securities [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Investment Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	78,300	111,646
Investment Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	242	419
Investment Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	277,333	368,706
Investment Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	4,610	9,411
Investment Securities, Continuous Unrealized Loss Position, Fair Value, Total	355,633	480,352
Investment Securities, Continuous Unrealized Loss Position, Accumulated Loss	4,852	9,830
Obligations of U.S. Government-Sponsored Enterprises - Other Government-Sponsored Enterprises [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Investment Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	10,091	112,473
Investment Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	9	229
Investment Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	91,570	130,401
Investment Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	82	1,079
Investment Securities, Continuous Unrealized Loss Position, Fair Value, Total	101,661	242,874
Investment Securities, Continuous Unrealized Loss Position, Accumulated Loss	$ 91	1,308
Obligations of States and Political Subdivisions [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Percent of Unrealized Losses	1.00%
Investment Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 7,123	3,146
Investment Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	55	43
Investment Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	0	0
Investment Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	0	0
Investment Securities, Continuous Unrealized Loss Position, Fair Value, Total	7,123	3,146
Investment Securities, Continuous Unrealized Loss Position, Accumulated Loss	$ 55	43
Pooled Trust Preferred Collateralized Debt Obligations [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Percent of Unrealized Losses	59.00%
Investment Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 0	0
Investment Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	0	0
Investment Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	30,068	24,356
Investment Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	7,237	13,236
Investment Securities, Continuous Unrealized Loss Position, Fair Value, Total	30,068	24,356
Investment Securities, Continuous Unrealized Loss Position, Accumulated Loss	$ 7,237	$ 13,236

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Investment Securities - Amortized Cost and Estimated Fair Value of Debt Securities Available for Sale (Detail) - USD ($) $ in Thousands		Sep. 30, 2015	Dec. 31, 2014
Investment Securities [Line Items]
Available-for-sale Securities, Debt Maturities, Next Twelve Months, Amortized Cost Basis		$ 3,000
Due within one year, Amortized Cost		206,812
Available-for-Sale Securities, Debt Maturities, Single Maturity Date, Fair Value		201,342
Available-for-sale Securities, Debt Maturities, without Single Maturity Date, Amortized Cost Basis	[1]	837,118
Due after one but within five years, Amortized Cost		132,852
Due after five but within ten years, Amortized Cost		25,657
Due after ten years, Amortized Cost		45,303
Corporate/Mortgage-Backed Securities, Amortized cost	[1]	847,471
Amortized Cost		1,045,850	$ 1,317,318
Due within one year, Estimated Fair Value		3,000
Due after one but within five years, Estimated Fair Value		132,781
Due after five but within ten years, Estimated Fair Value		26,031
Due after ten years, Estimated Fair Value		39,530
Total Debt Securities, Estimated Fair Value		1,050,733	1,309,819
Debt Securities [Member]
Investment Securities [Line Items]
Amortized Cost		1,043,930	1,315,898
Total Debt Securities, Estimated Fair Value		1,048,813	1,308,399
US Government Agencies Residential Mortgage-backed Securities [Member]
Investment Securities [Line Items]
Amortized Cost		20,902	23,344
Total Debt Securities, Estimated Fair Value		23,281	$ 25,936
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Investment Securities [Line Items]
Amortized Cost		816,200
Total Debt Securities, Estimated Fair Value		$ 824,200

[1] Mortgage Backed Securities include an amortized cost of $20.9 million and a fair value of $23.3 million for Obligations of U.S.

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Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Net Income	$ 12,414	$ 12,496	$ 40,082	$ 36,724
Other comprehensive income (loss), before tax (expense) benefit:
Unrealized holding gains (losses) on securities arising from during the period	6,344	(5,544)	12,510	16,863
Less: reclassification adjustment for gains on securities included in net income	0	(48)	(125)	(50)
Unrealized holding gains (losses) on derivatives arising from during the period	1,504	(27)	2,172	(27)
Less: reclassification adjustment for losses (gains) on derivatives included in net income	0	1	(6)	1
Total other comprehensive income (loss), before tax (expense) benefit	7,848	(5,618)	14,551	16,787
Income tax (expense) benefit related to items of other comprehensive income (loss)	(2,747)	1,964	(5,091)	(5,875)
Total other comprehensive income (loss)	5,101	(3,654)	9,460	10,912
Comprehensive Income	$ 17,515	$ 8,842	$ 49,542	$ 47,636

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Supplemental Comprehensive Income Disclosures

9 Months Ended

Sep. 30, 2015

Supplemental Comprehensive Income Disclosures [Abstract]

Supplemental Comprehensive Income Disclosures

Supplemental Comprehensive Income Disclosures

The following table identifies the related tax effects allocated to each component of other comprehensive income (“OCI”) in the Condensed Consolidated Statements of Comprehensive Income. Reclassification adjustments related to securities available for sale are included in the "Net securities gains" line and reclassification adjustments related to losses on derivatives are included in the "Other operating expenses" line in the Condensed Consolidated Statements of Income.

	For the Nine Months Ended September 30,
	2015									2014
	Pretax Amount			Tax (Expense) Benefit			Net of Tax Amount			Pretax Amount			Tax (Expense) Benefit			Net of Tax Amount
	(dollars in thousands)
Unrealized gains on securities:
Unrealized holding gains on securities arising during the period	$	12,510		$	(4,377	)	$	8,133		$	16,863		$	(5,902	)	$	10,961
Reclassification adjustment for gains on securities included in net income	(125		)	44			(81		)	(50		)	18			(32		)
Total unrealized gains on securities	12,385			(4,333		)	8,052			16,813			(5,884		)	10,929
Unrealized gains (losses) on derivatives:
Unrealized holding gains (losses) on derivatives arising during the period	2,172			(760		)	1,412			(27		)	9			(18		)
Reclassification adjustment for (gains) losses on derivatives included in net income	(6		)	2			(4		)	1			—			1
Total unrealized (losses) gains on derivatives	2,166			(758		)	1,408			(26		)	9			(17		)
Total other comprehensive income	$	14,551		$	(5,091	)	$	9,460		$	16,787		$	(5,875	)	$	10,912

	For the Three Months Ended September 30,
	2015							2014
	Pretax Amount		Tax (Expense) Benefit			Net of Tax Amount		Pretax Amount			Tax (Expense) Benefit		Net of Tax Amount
	(dollars in thousands)
Unrealized gains (losses) on securities:
Unrealized holding gains (losses) on securities arising during the period	$	6,344	$	(2,221	)	$	4,123	$	(5,544	)	$	1,938	$	(3,606	)
Reclassification adjustment for gains on securities included in net income	—		—			—		(48		)	17		(31		)
Total unrealized gains (losses) on securities	6,344		(2,221		)	4,123		(5,592		)	1,955		(3,637		)
Unrealized gains (losses) on derivatives:
Unrealized holding gains (losses) on derivatives arising during the period	1,504		(526		)	978		(27		)	9		(18		)
Reclassification adjustment for losses on derivatives included in net income	—		—			—		1			—		1
Total unrealized gains on derivatives	1,504		(526		)	978		(26		)	9		(17		)
Total other comprehensive income (loss)	$	7,848	$	(2,747	)	$	5,101	$	(5,618	)	$	1,964	$	(3,654	)

The following table details the change in components of OCI for the nine months endedSeptember 30:

	2015											2014
	Securities Available for Sale			Post-Retirement Obligation		Derivatives			Accumulated Other Comprehensive Income			Securities Available for Sale			Post-Retirement Obligation		Derivatives			Accumulated Other Comprehensive Income
	(dollars in thousands)
Balance at December 31	$	(4,875	)	$	76	$	300		$	(4,499	)	$	(20,868	)	$	280	$	—		$	(20,588	)
Other comprehensive income before reclassification adjustment	8,133			—		1,412			9,545			10,961			—		(18		)	10,943
Amounts reclassified from accumulated other comprehensive (loss) income	(81		)	—		(4		)	(85		)	(32		)	—		1			(31		)
Net other comprehensive income during the period	8,052			—		1,408			9,460			10,929			—		(17		)	10,912
Balance at September 30	$	3,177		$	76	$	1,708		$	4,961		$	(9,939	)	$	280	$	(17	)	$	(9,676	)

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Loans and Allowance for Credit Losses - Troubled Debt Restructurings Identified During Period (Detail) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015 USD ($) Contract	Sep. 30, 2014 USD ($) Contract	Sep. 30, 2015 USD ($) Contract	Sep. 30, 2014 USD ($) Contract
Financing Receivable, Modifications [Line Items]
Financing Receivable Modification Number Of Contracts | Contract	11	27
Number of Contracts | Contract			37	60
Total Pre-Modification Outstanding Recorded Investment			$ 4,217	$ 3,871
Post- Modification Outstanding Recorded Investment			$ 3,963	$ 3,846
Financing Receivable Modifications Extend Maturity	$ 0	$ 0
Financing Receivable Modifications Modify Rate	0	172
Financing Receivable Modifications Modify Payments	1,016	1,131
Financing Receivable, Modifications, Pre-Mod Recorded Investment	1,016	1,303
Financing Receivable, Modification, Post-Modification Recorded Investment	$ 996	$ 1,253
Financing Receivable, Modifications, Determination of Allowance for Credit Losses	0	2000	52000	49000
Commercial, financial, agricultural and other [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modification Number Of Contracts | Contract	1
Number of Contracts | Contract			4	2
Total Pre-Modification Outstanding Recorded Investment			$ 2,403	$ 1,505
Post- Modification Outstanding Recorded Investment			$ 2,314	$ 1,648
Financing Receivable Modifications Extend Maturity	$ 0
Financing Receivable Modifications Modify Rate	0
Financing Receivable Modifications Modify Payments	543
Financing Receivable, Modifications, Pre-Mod Recorded Investment	543
Financing Receivable, Modification, Post-Modification Recorded Investment	$ 525
Financing Receivable, Modifications, Determination of Allowance for Credit Losses	0		52	27
Residential real estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modification Number Of Contracts | Contract	8	24
Number of Contracts | Contract			24	44
Total Pre-Modification Outstanding Recorded Investment			$ 1,254	$ 2,235
Post- Modification Outstanding Recorded Investment			$ 1,165	$ 2,091
Financing Receivable Modifications Extend Maturity	$ 0	$ 0
Financing Receivable Modifications Modify Rate	0	164
Financing Receivable Modifications Modify Payments	455	1,116
Financing Receivable, Modifications, Pre-Mod Recorded Investment	455	1,280
Financing Receivable, Modification, Post-Modification Recorded Investment	$ 455	$ 1,233
Financing Receivable, Modifications, Determination of Allowance for Credit Losses	0	2	0	22
Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts | Contract			1	1
Total Pre-Modification Outstanding Recorded Investment			$ 464	$ 8
Post- Modification Outstanding Recorded Investment			$ 407	$ 6
Financing Receivable, Modifications, Determination of Allowance for Credit Losses			0	0
Loans to individuals [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modification Number Of Contracts | Contract	2	3
Number of Contracts | Contract			8	13
Total Pre-Modification Outstanding Recorded Investment			$ 96	$ 123
Post- Modification Outstanding Recorded Investment			$ 77	$ 101
Financing Receivable Modifications Extend Maturity	$ 0	$ 0
Financing Receivable Modifications Modify Rate	0	8
Financing Receivable Modifications Modify Payments	18	15
Financing Receivable, Modifications, Pre-Mod Recorded Investment	18	23
Financing Receivable, Modification, Post-Modification Recorded Investment	$ 16	$ 20
Financing Receivable, Modifications, Determination of Allowance for Credit Losses	0	0	0	0
Extended Maturity [Member]
Financing Receivable, Modifications [Line Items]
Total Pre-Modification Outstanding Recorded Investment			$ 1,751	$ 1,505
Extended Maturity [Member] | Commercial, financial, agricultural and other [Member]
Financing Receivable, Modifications [Line Items]
Total Pre-Modification Outstanding Recorded Investment			1,751	1,505
Extended Maturity [Member] | Residential real estate [Member]
Financing Receivable, Modifications [Line Items]
Total Pre-Modification Outstanding Recorded Investment			0	0
Extended Maturity [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Total Pre-Modification Outstanding Recorded Investment			0	0
Extended Maturity [Member] | Loans to individuals [Member]
Financing Receivable, Modifications [Line Items]
Total Pre-Modification Outstanding Recorded Investment			0	0
Contractual Interest Rate Reduction [Member]
Financing Receivable, Modifications [Line Items]
Total Pre-Modification Outstanding Recorded Investment			357	549
Contractual Interest Rate Reduction [Member] | Commercial, financial, agricultural and other [Member]
Financing Receivable, Modifications [Line Items]
Total Pre-Modification Outstanding Recorded Investment			0	0
Contractual Interest Rate Reduction [Member] | Residential real estate [Member]
Financing Receivable, Modifications [Line Items]
Total Pre-Modification Outstanding Recorded Investment			296	468
Contractual Interest Rate Reduction [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Total Pre-Modification Outstanding Recorded Investment			0	0
Contractual Interest Rate Reduction [Member] | Loans to individuals [Member]
Financing Receivable, Modifications [Line Items]
Total Pre-Modification Outstanding Recorded Investment			61	81
Contractual Payment Modification [Member]
Financing Receivable, Modifications [Line Items]
Total Pre-Modification Outstanding Recorded Investment			2,109	1,817
Contractual Payment Modification [Member] | Commercial, financial, agricultural and other [Member]
Financing Receivable, Modifications [Line Items]
Total Pre-Modification Outstanding Recorded Investment			652	0
Contractual Payment Modification [Member] | Residential real estate [Member]
Financing Receivable, Modifications [Line Items]
Total Pre-Modification Outstanding Recorded Investment			958	1,767
Contractual Payment Modification [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Total Pre-Modification Outstanding Recorded Investment			464	8
Contractual Payment Modification [Member] | Loans to individuals [Member]
Financing Receivable, Modifications [Line Items]
Total Pre-Modification Outstanding Recorded Investment			$ 35	$ 42

XML

Derivatives - Credit Value Adjustment Recorded Related to Notional Amount of Derivatives Outstanding (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative, Fair Value, Net	$ (688)	$ (268)
Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative, Fair Value, Net	2,644	472
Derivative, Notional Amount	200,000	100,000
Interest Rate Swap [Member] | Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative, Notional Amount	271,371	273,388
Interest Rate Cap [Member] | Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative, Notional Amount	23,447	6,656
Credit Default Swap [Member] | Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative, Notional Amount	124,116	113,624
Credit Default Swap, Selling Protection [Member] | Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative, Notional Amount	$ (17,635)	$ (17,296)

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Investment Securities (Tables)

9 Months Ended

Sep. 30, 2015

Schedule of Held-to-maturity Securities [Line Items]

Analysis of Amortized Cost and Estimated Fair Value of Securities Available for Sale

Below is an analysis of the amortized cost and estimated fair values of securities available for sale at:

	September 30, 2015									December 31, 2014
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
	(dollars in thousands)
Obligations of U.S. Government Agencies:
Mortgage-Backed Securities – Residential	$	20,902	$	2,379	$	—		$	23,281	$	23,344	$	2,595	$	(3	)	$	25,936
Obligations of U.S. Government-Sponsored Enterprises:
Mortgage-Backed Securities – Residential	816,179		12,819		(4,846		)	824,152		947,635		13,076		(9,830		)	950,881
Mortgage-Backed Securities – Commercial	37		1		—			38		72		2		—			74
Other Government-Sponsored Enterprises	135,853		19		(91		)	135,781		269,181		4		(1,308		)	267,877
Obligations of States and Political Subdivisions	27,064		397		(12		)	27,449		27,058		362		(43		)	27,377
Corporate Securities	1,895		438		—			2,333		6,682		573		—			7,255
Pooled Trust Preferred Collateralized Debt Obligations	42,000		1,016		(7,237		)	35,779		41,926		309		(13,236		)	28,999
Total Debt Securities	1,043,930		17,069		(12,186		)	1,048,813		1,315,898		16,921		(24,420		)	1,308,399
Equities	1,920		—		—			1,920		1,420		—		—			1,420
Total Securities Available for Sale	$	1,045,850	$	17,069	$	(12,186	)	$	1,050,733	$	1,317,318	$	16,921	$	(24,420	)	$	1,309,819

Amortized Cost and Estimated Fair Value of Debt Securities Available for Sale

The amortized cost and estimated fair value of debt securities available for sale at September 30, 2015, by contractual maturity, are shown below.

	Amortized Cost		Estimated Fair Value
	(dollars in thousands)
Due within 1 year	$	3,000	$	3,000
Due after 1 but within 5 years	132,852		132,781
Due after 5 but within 10 years	25,657		26,031
Due after 10 years	45,303		39,530
	206,812		201,342
Mortgage-Backed Securities (a)	837,118		847,471
Total Debt Securities	$	1,043,930	$	1,048,813

(a) Mortgage Backed Securities include an amortized cost of $20.9 million and a fair value of $23.3 million for Obligations of U.S.

Proceeds from Sale, Gross Gains (Losses) Realized on Sales, Maturities and Other-Than-Temporary Impairment Charges Related to Securities Available for Sale

Proceeds from sales, gross gains (losses) realized on sales, maturities and other-than-temporary impairment charges related to securities available for sale were as follows for the nine months endedSeptember 30:

	2015		2014
	(dollars in thousands)
Proceeds from sales	$	—	$	132,868
Gross gains (losses) realized:
Sales Transactions:
Gross gains	$	—	$	489
Gross losses	—		(441		)
	—		48
Maturities and impairment
Gross gains	125		2
Gross losses	—		—
Other-than-temporary impairment	—		—
	125		2
Net gains and impairment	$	125	$	50

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Commitments and Contingent Liabilities - Notional Amount of Outstanding Commitments (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Commitments to extend credit [Member]
Loss Contingencies [Line Items]
Financial instrument of credit risk	$ 1,576,245	$ 1,635,948
Financial standby letters of credit [Member]
Loss Contingencies [Line Items]
Financial instrument of credit risk	20,089	36,075
Performance standby letters of credit [Member]
Loss Contingencies [Line Items]
Financial instrument of credit risk	26,317	25,915
Commercial letters of credit [Member]
Loss Contingencies [Line Items]
Financial instrument of credit risk	$ 2,023	$ 2,611

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Goodwill

9 Months Ended

Sep. 30, 2015

Goodwill Disclosure [Abstract]

Goodwill

Goodwill

FASB ASC Topic 350-20, “Intangibles – Goodwill and Other” requires an annual valuation of the fair value of a reporting unit that has goodwill and a comparison of the fair value to the book value of equity to determine whether the goodwill has been impaired. Goodwill is also required to be tested on an interim basis if an event or circumstance indicates that it is more likely than not that an impairment loss has been incurred. When triggering events or circumstances indicate that goodwill testing is required, an assessment of qualitative factors can be completed before performing the two step goodwill impairment test. ASU 2011-8 provides that if an assessment of qualitative factors determines it is more likely than not that the fair value of a reporting unit exceeds its carrying amount, then the two step goodwill impairment test is not required.

We consider First Commonwealth to be one reporting unit. The carrying amount of goodwill as of September 30, 2015 and December 31, 2014 was $161.4 million. No impairment charges on goodwill or other intangible assets were incurred in 2015 or 2014.

We test goodwill for impairment as of November 30th each year and again at any quarter-end if any material events occur during a quarter that may affect goodwill.

As of September 30, 2015, goodwill was not considered impaired; however, changing economic conditions that may adversely affect our performance, the fair value of our assets and liabilities, or our stock price could result in impairment, which could adversely affect earnings in future periods. Management will continue to monitor events that could impact this conclusion in the future.