10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-Q

(Mark One)

x Quarterly Report Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934

For the quarterly period ended March 31, 2016

¨ 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 001-31940

F.N.B. CORPORATION

(Exact name of registrant as specified in its charter)

Florida	25-1255406
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)

One North Shore Center, 12 Federal Street, Pittsburgh, PA	15212
(Address of principal executive offices)	(Zip Code)

Registrant’s telephone number, including area code: 800-555-5455

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

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

Indicate by check mark whether the registrant has submitted electronically and posted on its 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 definition of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one):

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

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ¨    No  x

APPLICABLE ONLY TO CORPORATE ISSUERS:

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

Class	Outstanding at April 30, 2016
Common Stock, $0.01 Par Value	209,803,853 Shares

F.N.B. CORPORATION

FORM 10-Q

March 31, 2016

INDEX

		PAGE
PART I – FINANCIAL INFORMATION
Item 1.	Financial Statements
	Consolidated Balance Sheets		3
	Consolidated Statements of Comprehensive Income		4
	Consolidated Statements of Stockholders’ Equity		5
	Consolidated Statements of Cash Flows		6
	Notes to Consolidated Financial Statements		7
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations		44
Item 3.	Quantitative and Qualitative Disclosures About Market Risk		63
Item 4.	Controls and Procedures		63
PART II – OTHER INFORMATION
Item 1.	Legal Proceedings		64
Item 1A.	Risk Factors		64
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds		64
Item 3.	Defaults Upon Senior Securities		64
Item 4.	Mine Safety Disclosures		64
Item 5.	Other Information		64
Item 6.	Exhibits		64
Signatures			65

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PART I – FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS

F.N.B. CORPORATION AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS

In thousands, except share and per share data

	March 31, 2016			December 31, 2015
	(Unaudited)
Assets
Cash and due from banks	$	260,426		$	207,399
Interest bearing deposits with banks		85,519			281,720
Cash and Cash Equivalents		345,945			489,119
Securities available for sale		2,099,343			1,630,567
Securities held to maturity (fair value of $1,803,453 and $1,643,416)		1,776,020			1,637,061
Residential mortgage loans held for sale		7,683			4,781
Loans and leases, net of unearned income of $49,332 and $51,642		14,165,599			12,190,440
Allowance for credit losses		(147,800	)		(142,012	)
Net Loans and Leases		14,017,799			12,048,428
Premises and equipment, net		208,672			159,080
Goodwill		1,006,934			833,086
Core deposit and other intangible assets, net		80,116			45,644
Bank owned life insurance		310,106			308,192
Other assets		471,906			401,704
Total Assets	$	20,324,524		$	17,557,662
Liabilities
Deposits:
Non-interest bearing demand	$	3,896,782		$	3,059,949
Interest bearing demand		6,512,461			5,311,589
Savings		2,291,656			1,786,459
Certificates and other time deposits		2,689,584			2,465,466
Total Deposits		15,390,483			12,623,463
Short-term borrowings		1,563,888			2,048,896
Long-term borrowings		657,445			641,480
Other liabilities		194,687			147,641
Total Liabilities		17,806,503			15,461,480
Stockholders’ Equity
Preferred stock—$0.01 par value; liquidation preference of $1,000 per share
Authorized – 20,000,000 shares
Issued – 110,877 shares		106,882			106,882
Common stock—$0.01 par value
Authorized – 500,000,000 shares
Issued – 211,016,267 and 176,595,060 shares		2,112			1,766
Additional paid-in capital		2,214,959			1,808,210
Retained earnings		242,045			243,217
Accumulated other comprehensive loss		(33,651	)		(51,133	)
Treasury stock – 1,282,976 and 1,153,390 shares at cost		(14,326	)		(12,760	)
Total Stockholders’ Equity		2,518,021			2,096,182
Total Liabilities and Stockholders’ Equity	$	20,324,524		$	17,557,662

See accompanying Notes to Consolidated Financial Statements

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F.N.B. CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

In thousands, except per share data

Unaudited

	Three Months Ended March 31,
	2016		2015
Interest Income
Loans and leases, including fees	$	137,121	$	117,739
Securities:
Taxable		16,493		14,214
Nontaxable		2,018		1,373
Dividends		5		11
Other		117		32
Total Interest Income		155,754		133,369
Interest Expense
Deposits		9,486		7,449
Short-term borrowings		2,361		1,768
Long-term borrowings		3,553		2,231
Total Interest Expense		15,400		11,448
Net Interest Income		140,354		121,921
Provision for credit losses		11,768		8,136
Net Interest Income After Provision for Credit Losses		128,586		113,785
Non-Interest Income
Service charges		21,276		15,817
Trust fees		5,282		5,161
Insurance commissions and fees		4,921		4,369
Securities commissions and fees		3,374		3,057
Net securities gains (losses)		71		(9	)
Mortgage banking operations		1,595		1,799
Bank owned life insurance		2,062		1,843
Other		7,463		6,145
Total Non-Interest Income		46,044		38,182
Non-Interest Expense
Salaries and employee benefits		56,425		49,269
Net occupancy		9,266		8,976
Equipment		8,556		7,648
Amortization of intangibles		2,649		2,115
Outside services		9,303		8,777
FDIC insurance		3,968		3,689
Merger and acquisition related		24,940		—
Other		21,541		14,181
Total Non-Interest Expense		136,648		94,655
Income Before Income Taxes		37,982		57,312
Income taxes		11,850		16,969
Net Income		26,132		40,343
Less: Preferred stock dividends		2,010		2,010
Net Income Available to Common Stockholders	$	24,122	$	38,333
Net Income per Common Share – Basic	$	0.12	$	0.22
Net Income per Common Share – Diluted		0.12		0.22
Cash Dividends per Common Share		0.12		0.12
Comprehensive Income	$	43,614	$	51,366

See accompanying Notes to Consolidated Financial Statements

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F.N.B. CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY

Dollars in thousands, except per share data

Unaudited

	Preferred Stock		Common Stock		Additional Paid-In Capital		Retained Earnings			Accumulated Other Comprehensive Income (Loss)			Treasury Stock			Total
Balance at January 1, 2016	$	106,882	$	1,766	$	1,808,210	$	243,217		$	(51,133	)	$	(12,760	)	$	2,096,182
Comprehensive income								26,132			17,482						43,614
Dividends declared:
Preferred stock								(2,010	)								(2,010	)
Common stock: $0.12/share								(25,294	)								(25,294	)
Issuance of common stock				5		1,657								(1,566	)		96
Issuance of common stock—acquisitions				341		403,679											404,020
Restricted stock compensation						1,136											1,136
Tax benefit of stock-based compensation						277											277
Balance at March 31, 2016	$	106,882	$	2,112	$	2,214,959	$	242,045		$	(33,651	)	$	(14,326	)	$	2,518,021
Balance at January 1, 2015	$	106,882	$	1,754	$	1,798,984	$	176,120		$	(46,003	)	$	(16,281	)	$	2,021,456
Comprehensive income								40,343			11,023						51,366
Dividends declared:
Preferred stock								(2,010	)								(2,010	)
Common stock: $0.12/share								(20,992	)								(20,992	)
Issuance of common stock				9		5,986								(1,560	)		4,435
Restricted stock compensation						340											340
Tax benefit of stock-based compensation						681											681
Balance at March 31, 2015	$	106,882	$	1,763	$	1,805,991	$	193,461		$	(34,980	)	$	(17,841	)	$	2,055,276

See accompanying Notes to Consolidated Financial Statements

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F.N.B. CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS

Dollars in thousands

Unaudited

	Three Months Ended March 31,
	2016			2015
Operating Activities
Net income	$	26,132		$	40,343
Adjustments to reconcile net income to net cash flows provided by operating activities:
Depreciation, amortization and accretion		11,759			11,725
Provision for credit losses		11,768			8,136
Deferred tax expense		255			3,217
Net securities (gains) losses		(71	)		9
Tax benefit of stock-based compensation		(277	)		(681	)
Loans originated for sale		(95,503	)		(71,499	)
Loans sold		94,765			74,870
Gain on sale of loans		(2,164	)		(1,813	)
Net change in:
Interest receivable		(109	)		(1,704	)
Interest payable		1,301			(178	)
Bank owned life insurance		(1,850	)		(1,323	)
Other, net		47,865			5,187
Net cash flows provided by operating activities		93,871			66,289
Investing Activities
Net change in loans and leases		(122,982	)		(167,685	)
Securities available for sale:
Purchases		(510,271	)		(90,156	)
Sales		615,199			33,228
Maturities		170,266			66,275
Securities held to maturity:
Purchases		(217,574	)		(130,506	)
Sales		—			69,394
Maturities		77,369			—
Purchase of bank owned life insurance		(64	)		(8	)
Increase in premises and equipment		(13,878	)		(6,199	)
Net cash received in business combinations		46,854			—
Net cash flows provided by (used in) investing activities		44,919			(225,657	)
Financing Activities
Net change in:
Demand (non-interest bearing and interest bearing) and savings accounts		411,857			445,685
Time deposits		28,558			(20,779	)
Short-term borrowings		(687,409	)		(301,158	)
Increase in long-term borrowings		42,371			6,598
Decrease in long-term borrowings		(51,546	)		(6,579	)
Net proceeds from issuance of common stock		1,232			4,775
Tax benefit of stock-based compensation		277			681
Cash dividends paid:
Preferred stock		(2,010	)		(2,010	)
Common stock		(25,294	)		(20,992	)
Net cash flows (used in) provided by financing activities		(281,964	)		106,221
Net Decrease in Cash and Cash Equivalents		(143,174	)		(53,147	)
Cash and cash equivalents at beginning of period		489,119			287,393
Cash and Cash Equivalents at End of Period	$	345,945		$	234,246

See accompanying Notes to Consolidated Financial Statements

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F.N.B. CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Dollars in thousands, except share data

(Unaudited)

March 31, 2016

NATURE OF OPERATIONS

F.N.B. Corporation (the Corporation), headquartered in Pittsburgh, Pennsylvania, is a diversified financial services company operating in six states and three major metropolitan areas, including Pittsburgh, Pennsylvania, Baltimore, Maryland and Cleveland, Ohio. As of March 31, 2016, the Corporation had 317 banking offices throughout Pennsylvania, Ohio, Maryland and West Virginia. The Corporation provides a full range of commercial banking, consumer banking and wealth management solutions through its subsidiary network which is led by its largest affiliate, First National Bank of Pennsylvania (FNBPA). Commercial banking solutions include corporate banking, small business banking, investment real estate financing, international banking, business credit, capital markets and lease financing. Consumer banking provides a full line of consumer banking products and services including deposit products, mortgage lending, consumer lending and a complete suite of mobile and online banking services. Wealth management services include fiduciary and brokerage services, asset management, private banking and insurance. The Corporation also operates Regency Finance Company (Regency), which had 76 consumer finance offices in Pennsylvania, Ohio, Kentucky and Tennessee as of March 31, 2016.

1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Basis of Presentation

The Corporation’s accompanying consolidated financial statements and these notes to the financial statements include subsidiaries in which the Corporation has a controlling financial interest. The Corporation owns and operates FNBPA, First National Trust Company, First National Investment Services Company, LLC, F.N.B. Investment Advisors, Inc., First National Insurance Agency, LLC, Regency, Bank Capital Services, LLC and F.N.B. Capital Corporation, LLC, and includes results for each of these entities in the accompanying consolidated financial statements.

The accompanying consolidated financial statements include all adjustments that are necessary, in the opinion of management, to fairly reflect the Corporation’s financial position and results of operations in accordance with U.S. generally accepted accounting principles (GAAP). All significant intercompany balances and transactions have been eliminated. Certain prior period amounts have been reclassified to conform to the current period presentation. Events occurring subsequent to the date of the balance sheet have been evaluated for potential recognition or disclosure in the consolidated financial statements through the date of the filing of the consolidated financial statements with the Securities and Exchange Commission (SEC).

Certain information and note disclosures normally included in consolidated financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to the rules and regulations of the SEC. The interim operating results are not necessarily indicative of operating results the Corporation expects for the full year. These interim consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in the Corporation’s Annual Report on Form 10-K filed with the SEC on February 26, 2016.

Use of Estimates

The accounting and reporting policies of the Corporation conform with GAAP. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could materially differ from those estimates. Material estimates that are particularly susceptible to significant changes include the allowance for credit losses, securities valuations, goodwill and other intangible assets, fair value measurements and income taxes.

Business Combinations

Business combinations are accounted for by applying the acquisition method in accordance with Accounting Standards Codification (ASC) 805, Business Combinations. Under the acquisition method, identifiable assets acquired and liabilities assumed, and any non-controlling interest in the acquiree at the acquisition date are measured at their fair

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values as of that date, and are recognized separately from goodwill. Results of operations of the acquired entities are included in the consolidated statement of comprehensive income from the date of acquisition. Beginning in 2016, measurement-period adjustments are recorded in the period the adjustment is identified. Prior to this time, measurement-period adjustments were recorded retrospectively.

Cloud Computing Arrangements

Beginning in 2016, for new or materially modified contracts, the Corporation prospectively adopted new accounting principles to evaluate fees paid for cloud computing arrangements to determine if those arrangements include the purchase of or license to software that should be accounted for separately as internal-use software. If a contract includes the purchase or license to software that should be accounted for separately as internal-use software, the contract is amortized over the software’s identified useful life in amortization of intangibles. For contracts that do not include a software license, the contract is accounted for as a service contract with fees paid recorded in other non-interest expense.

Stock Based Compensation

The Corporation accounts for its stock based compensation awards in accordance with Accounting Standards Codification (ASC) 718, Compensation—Stock Compensation, which requires the measurement and recognition of compensation expense, based on estimated fair values, for all share-based awards, including stock options and restricted stock, made to employees and directors.

ASC 718 requires companies to estimate the fair value of share-based awards on the date of grant. The value of the portion of the award that is ultimately expected to vest is recognized as expense in the Corporation’s consolidated statement of comprehensive income over the shorter of requisite service periods or the period through the date that the employee first becomes eligible to retire. Some of the Corporation’s plans contain performance targets that affect vesting and can be achieved after the requisite service period and accounted for as a performance condition. Beginning in 2016, the performance target is not reflected in the estimation of the award’s grant date fair value and compensation cost is recognized in the period in which it becomes probable that the performance condition will be achieved.

Because share-based compensation expense is based on awards that are ultimately expected to vest, share-based compensation expense has been reduced to account for estimated forfeitures. Forfeitures are estimated at the time of grant and revised, if necessary, in subsequent periods if actual forfeitures differ from those estimates.

Variable Interest Entities

The Corporation has investments in certain partnerships and limited liability entities that qualify as variable interest entities (VIEs). These entities are evaluated on an on-going basis to determine whether they should be consolidated. Consolidation of a VIE is appropriate if a reporting entity holds a controlling financial interest in the VIE. The Corporation has determined that it does not hold a controlling financial interest in any of the VIEs and, therefore, the assets and liabilities of these entities are not consolidated into its financial statements. Instead, investments in these entities are accounted for under the equity method of accounting and are evaluated periodically for impairment. The recorded investment in these entities is reported in other assets on the consolidated balance sheets.

2. NEW ACCOUNTING STANDARDS

The following paragraphs summarize accounting pronouncements applicable to the Corporation that have been issued by the Financial Accounting Standards Board (FASB) but are not yet effective.

Revenue Recognition

Accounting Standards Update (ASU or Update) 2016-10, Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing, clarifies several aspects of identifying performance obligations and licensing implementation guidance including guidance that is expected to reduce the cost and complexity by eliminating the need to assess whether goods and services are performance obligations if they are immaterial in the context of the contract with the customer.

ASU 2016-08, Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net), clarifies the guidance on principal versus agent considerations when another party is involved in providing goods and services to a customer. The guidance requires a company to determine whether it is required to provide the specific good or service itself or to arrange for that good or service to be provided by another party.

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ASU 2014-09, Revenue from Contracts with Customers (Topic 606), modifies the guidance used to recognize revenue from contracts with customers for transfers of goods and services and transfers of nonfinancial assets, unless those contracts are within the scope of other guidance. The guidance also requires new qualitative and quantitative disclosures about contract balances and performance obligations. The Update can be adopted using either the full retrospective method or modified retrospective method. The Corporation intends to use the modified retrospective approach when adopted.

The guidance for these Revenue Recognition Updates is effective for annual periods beginning in the first quarter of 2018. Early application is permitted beginning in the first quarter of 2017. The Corporation is currently assessing the potential impact to its Consolidated Financial Statements.

Stock Based Compensation

ASU 2016-09, Compensation—Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting, simplifies several aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities and classification on the statement of cash flows. The Update is effective in the first quarter of 2017 by an application method determined by the type of transaction impacted by the adoption. Early application is permitted. The Corporation is currently assessing the potential impact to its Consolidated Financial Statements.

Investments

ASU 2016-07, Investments—Equity Method and Joint Ventures (Topic 323): Simplifying the Transition to the Equity Method of Accounting, eliminates the requirement for an investor to retrospectively apply the equity method when an investment that it had accounted for by another method qualifies for use of the equity method. The Update is effective in the first quarter of 2017 with prospective application. Early application is permitted. This Update is not expected to have a material effect on the Consolidated Financial Statements.

Derivative and Hedging Activities

ASU 2016-06, Derivatives and Hedging (Topic 815): Contingent Put and Call Options in Debt Instruments (a consensus of the Emerging Issues Task Force), provides clarification that determination of whether an embedded contingent put or call option in a financial instrument is clearly and closely related to the debt host requires only an analysis of the four-step decision sequence described in ASC 815-15-25-42. The Update is effective in the first quarter of 2017 with modified retrospective application. Early application is permitted. If an entity is no longer required to bifurcate an embedded derivative as a result of this Update and elects fair value accounting, the effects should be reported as a cumulative-effect adjustment. This Update is not expected to have a material effect on the Consolidated Financial Statements.

ASU 2016-05, Derivatives and Hedging (Topic 815): Effect of Derivative Contract Novations on Existing Hedge Accounting Relationships (a consensus of the Emerging Issues Task Force), clarifies that a change in counterparty to a derivative instrument that has been designated as a hedging instrument under Topic 815 does not, in and of itself, require dedesignation of that hedging relationship provided all other hedge accounting criteria continue to be met. The Update is effective in the first quarter of 2017 with either prospective or modified retrospective application. Early application is permitted. This Update is not expected to have a material effect on the Consolidated Financial Statements.

Extinguishments of Liabilities

ASU 2016-04, Liabilities—Extinguishments of Liabilities (Subtopic 405-20): Recognition of Breakage for Certain Prepaid Stored-Value Products (a consensus of the Emerging Issues Task Force), requires entities that sell prepaid stored-value products redeemable for goods, services or cash at third-party merchants to recognize breakage. The Update is effective in the first quarter of 2018 with either the modified retrospective method by means of a cumulative-effect adjustment to retained earnings or retrospective application. Early application is permitted. This Update is not expected to have a material effect on the Consolidated Financial Statements.

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Leases

ASU 2016-02, Leases (Topic 842), requires lessees to put most leases on their balance sheet but recognize expenses in the income statement similar to current accounting. In addition, the Update changes the guidance for sale-leaseback transactions, initial direct costs and lease executory costs for most entities. All entities will classify leases to determine how to recognize lease related revenue and expense. The Update is effective in the first quarter of 2019 with modified retrospective application including a number of optional practical expedients. Early application is permitted. The Corporation is currently assessing the potential impact to its Consolidated Financial Statements.

Financial Instruments – Recognition and Measurement

ASU 2016-01, Financial Instruments—Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities, amends the presentation and accounting for certain financial instruments, including liabilities measured at fair value under the fair value option, and equity investments. The guidance also updates fair value presentation and disclosure requirements for financial instruments measured at amortized cost. The Update is effective in the first quarter of 2018 with a cumulative-effect adjustment as of the beginning of the fiscal year of adoption. Early application is prohibited except for the provision requiring the recognition of changes in fair value related to changes in an entity’s own credit risk in other comprehensive income for financial liabilities measured using the fair value option. This Update is not expected to have a material effect on the Consolidated Financial Statements.

3. MERGERS AND ACQUISITIONS

Branch Purchase – Fifth Third Bank

On April 22, 2016, the Corporation completed its purchase of 17 branch-banking locations and related consumer loans in the Pittsburgh, Pennsylvania metropolitan area from Fifth Third Bank, in which the Corporation acquired approximately $99,500 in loans and $302,000 in deposits. The assets and liabilities relating to the branches purchased were recorded on the Corporation’s consolidated balance sheet at their preliminary fair values as of April 22, 2016, and the related results of operation for these branches have been included in the Corporation’s consolidated statement of comprehensive income since that date. Based on the preliminary purchase price allocation, the Corporation recorded $10,798 in goodwill and $5,200 in core deposit intangibles. These fair value estimates are provisional amounts based on third party valuations that are currently under review. The goodwill for this transaction is expected to be deductible for income tax purposes.

Metro Bancorp, Inc.

On February 13, 2016, the Corporation completed its acquisition of Metro Bancorp, Inc. (METR), a bank holding company based in Harrisburg, Pennsylvania. The acquisition will enhance the Corporation’s distribution and scale across Central Pennsylvania, strengthen its position as the largest Pennsylvania-based regional bank and allow the Corporation to leverage the significant infrastructure investments made in connection with the expansion of its product offerings and risk management systems. On the acquisition date, the estimated fair values of METR included $2,797,199 in assets, $1,869,046 in loans and $2,327,219 in deposits. The acquisition was valued at $404,020 and resulted in the Corporation issuing 34,041,181 shares of its common stock in exchange for 14,345,319 shares of METR common stock. The Corporation also acquired the fully vested outstanding stock options of METR. The assets and liabilities of METR were recorded on the Corporation’s consolidated balance sheet at their preliminary estimated fair values as of February 13, 2016, the acquisition date, and METR’s results of operations have been included in the Corporation’s consolidated statement of comprehensive income since that date. METR’s banking affiliate, Metro Bank, was merged into FNBPA on February 13, 2016. Based on the preliminary purchase price allocation, the Corporation recorded $173,848 in goodwill and $36,801 in core deposit intangibles as a result of the acquisition. These fair value estimates are provisional amounts based on third party valuations that are currently under review. None of the goodwill is deductible for income tax purposes.

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The following pro forma financial information for the three months ended March 31, 2015 reflects the Corporation’s estimated consolidated pro forma results of operations as if the METR acquisition occurred on January 1, 2015, unadjusted for potential cost savings and other business synergies the Corporation expects to receive as a result of the acquisition:

	F.N.B. Corporation		METR		Pro Forma Adjustments			Pro Forma Combined
Revenue (net interest income and non-interest income)	$	160,103	$	33,626	$	(1,061	)	$	192,668
Net income		40,343		5,722		(2,003	)		44,062
Net income available to common stockholders		38,333		5,702		(1,983	)		42,052
Earnings per common share – basic		0.22		0.40		—			0.20
Earnings per common share – diluted		0.22		0.39		—			0.20

The pro forma adjustments reflect amortization and associated taxes related to the purchase accounting adjustments made to record various acquired items at fair value.

In connection with the METR acquisition, the Corporation incurred expenses related to systems conversions and other costs of integrating and conforming acquired operations with and into the Corporation. These merger-related charges amounted to $24,577 and were expensed as incurred. Severance costs comprised 50.9% of the merger-related expenses, with the remainder consisting of other non-interest expenses, including professional services, marketing and advertising, technology and communications, occupancy and equipment, and charitable contributions. The Corporation also incurred issuance costs of $743 which were charged to additional paid-in capital.

Branch Purchase – Bank of America

On September 18, 2015, the Corporation completed its purchase of five branch-banking locations in southeastern Pennsylvania from Bank of America (BofA). The fair value of the acquired assets totaled $154,619, including $148,159 in cash, $4,485 in goodwill and intangible assets, and $1,975 in fixed and other assets. The Corporation also assumed $154,619 in deposits associated with these branches. The Corporation paid a deposit premium of 1.94% and acquired an immaterial amount of loans as part of the transaction. The Corporation’s operating results for 2015 include the impact of branch activity subsequent to the September 18, 2015 closing date. Goodwill of $1,485 for this transaction is deductible for income tax purposes.

The following table summarizes the amounts recorded on the consolidated balance sheet as of each of the acquisition dates in conjunction with the METR acquisition and the BofA branch acquisition discussed above:

	METR		BofA Branches
Fair value of consideration paid	$	404,020	$	—
Fair value of identifiable assets acquired:
Cash and cash equivalents		46,854		148,159
Securities		722,980		—
Loans		1,869,046		842
Other intangible assets		36,801		3,000
Other assets		121,518		1,133
Total identifiable assets acquired		2,797,199		153,134
Fair value of liabilities assumed:
Deposits		2,327,219		154,619
Borrowings		227,539		—
Other liabilities		12,269		—
Total liabilities assumed		2,567,027		154,619
Fair value of net identifiable assets acquired		230,172		(1,485	)
Goodwill recognized (1)	$	173,848	$	1,485

(1) All of the goodwill for both of these transactions has been recorded by FNBPA.

11

4. SECURITIES

The amortized cost and fair value of securities are as follows:

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Securities Available for Sale
March 31, 2016
U.S. Treasury	$	29,771	$	223	$	—		$	29,994
U.S. government-sponsored entities		398,497		2,617		(36	)		401,078
Residential mortgage-backed securities:
Agency mortgage-backed securities		1,075,195		12,691		(21	)		1,087,865
Agency collateralized mortgage obligations		524,722		3,812		(2,904	)		525,630
Non-agency collateralized mortgage obligations		1,111		—		(15	)		1,096
Commercial mortgage-backed securities		3,674		—		(1	)		3,673
States of the U.S. and political subdivisions		39,620		283		(99	)		39,804
Other debt securities		9,754		177		(1,023	)		8,908
Total debt securities		2,082,344		19,803		(4,099	)		2,098,048
Equity securities		975		320		—			1,295
	$	2,083,319	$	20,123	$	(4,099	)	$	2,099,343
December 31, 2015
U.S. Treasury	$	29,738	$	58	$	—		$	29,796
U.S. government-sponsored entities		368,463		856		(1,325	)		367,994
Residential mortgage-backed securities:
Agency mortgage-backed securities		703,069		4,594		(2,832	)		704,831
Agency collateralized mortgage obligations		503,328		1,032		(8,530	)		495,830
Non-agency collateralized mortgage obligations		1,177		13		—			1,190
Commercial mortgage-backed securities		4,299		—		(12	)		4,287
States of the U.S. and political subdivisions		10,748		309		—			11,057
Other debt securities		14,729		208		(651	)		14,286
Total debt securities		1,635,551		7,070		(13,350	)		1,629,271
Equity securities		975		324		(3	)		1,296
	$	1,636,526	$	7,394	$	(13,353	)	$	1,630,567
Securities Held to Maturity
March 31, 2016
U.S. Treasury	$	500	$	184	$	—		$	684
U.S. government-sponsored entities		122,333		1,606		—			123,939
Residential mortgage-backed securities:
Agency mortgage-backed securities		830,640		18,063		(4	)		848,699
Agency collateralized mortgage obligations		520,576		4,123		(2,931	)		521,768
Non-agency collateralized mortgage obligations		2,436		4		(9	)		2,431
Commercial mortgage-backed securities		50,526		1,222		(92	)		51,656
States of the U.S. and political subdivisions		249,009		5,441		(174	)		254,276
	$	1,776,020	$	30,643	$	(3,210	)	$	1,803,453
December 31, 2015
U.S. Treasury	$	500	$	153	$	—		$	653
U.S. government-sponsored entities		137,385		809		(395	)		137,799
Residential mortgage-backed securities:
Agency mortgage-backed securities		709,970		9,858		(1,176	)		718,652
Agency collateralized mortgage obligations		499,694		803		(7,657	)		492,840
Non-agency collateralized mortgage obligations		2,681		14		—			2,695
Commercial mortgage-backed securities		51,258		115		(259	)		51,114
States of the U.S. and political subdivisions		235,573		4,191		(101	)		239,663
	$	1,637,061	$	15,943	$	(9,588	)	$	1,643,416

12

The increase in securities in 2016 primarily relates to the METR acquisition completed on February 13, 2016.

Gross gains and gross losses were realized on securities as follows:

	Three Months Ended
	March 31,
	2016		2015
Gross gains	$	71	$	—
Gross losses		—		(9	)
	$	71	$	(9	)

As of March 31, 2016, the amortized cost and fair value of securities, by contractual maturities, were as follows:

	Available for Sale				Held to Maturity
	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Due in one year or less	$	179	$	180	$	12,126	$	12,140
Due from one to five years		441,067		444,025		114,319		115,578
Due from five to ten years		29,112		29,332		53,587		54,986
Due after ten years		7,284		6,247		191,810		196,195
		477,642		479,784		371,842		378,899
Residential mortgage-backed securities:
Agency mortgage-backed securities		1,075,195		1,087,865		830,640		848,699
Agency collateralized mortgage obligations		524,722		525,630		520,576		521,768
Non-agency collateralized mortgage obligations		1,111		1,096		2,436		2,431
Commercial mortgage-backed securities		3,674		3,673		50,526		51,656
Equity securities		975		1,295		—		—
	$	2,083,319	$	2,099,343	$	1,776,020	$	1,803,453

Maturities may differ from contractual terms because borrowers may have the right to call or prepay obligations with or without penalties. Periodic payments are received on mortgage-backed securities based on the payment patterns of the underlying collateral.

At March 31, 2016 and December 31, 2015, securities with a carrying value of $2,472,531 and $1,728,939, respectively, were pledged to secure public deposits, trust deposits and for other purposes as required by law. Securities with a carrying value of $361,338 and $272,629 at March 31, 2016 and December 31, 2015, respectively, were pledged as collateral for short-term borrowings. In total, 73.1% of securities as of March 31, 2016 were pledged for purposes as stated above, compared to 61.3% as of December 31, 2015.

13

Following are summaries of the fair values and unrealized losses of securities, segregated by length of impairment:

	Less than 12 Months							12 Months or More							Total
	#		Fair Value		Unrealized Losses			#		Fair Value		Unrealized Losses			#		Fair Value		Unrealized Losses
Securities Available for Sale
March 31, 2016
U.S. government-sponsored entities		2	$	17,960	$	(36	)		—	$	—	$	—			2	$	17,960	$	(36	)
Residential mortgage-backed securities:
Agency mortgage-backed securities		2		56,402		(21	)		—		—		—			2		56,402		(21	)
Agency collateralized mortgage obligations		2		29,786		(28	)		15		175,354		(2,876	)		17		205,140		(2,904	)
Non-agency collateralized mortgage obligations		1		1,091		(15	)		—		—		—			1		1,091		(15	)
Commercial mortgage-backed securities		1		3,673		(1	)		—		—		—			1		3,673		(1	)
States of the U.S. and political subdivisions		16		21,325		(99	)		—		—		—			16		21,325		(99	)
Other debt securities		—		—		—			3		3,875		(1,023	)		3		3,875		(1,023	)
		24	$	130,237	$	(200	)		18	$	179,229	$	(3,899	)		42	$	309,466	$	(4,099	)
December 31, 2015
U.S. government-sponsored entities		6	$	99,131	$	(814	)		2	$	34,487	$	(511	)		8	$	133,618	$	(1,325	)
Residential mortgage-backed securities:
Agency mortgage-backed securities		19		359,250		(2,832	)		—		—		—			19		359,250		(2,832	)
Agency collateralized mortgage obligations		9		126,309		(1,366	)		18		215,330		(7,164	)		27		341,639		(8,530	)
Commercial mortgage-backed securities		1		4,287		(12	)		—		—		—			1		4,287		(12	)
Other debt securities		—		—		—			3		4,245		(651	)		3		4,245		(651	)
Equity securities		1		632		(3	)		—		—		—			1		632		(3	)
		36	$	589,609	$	(5,027	)		23	$	254,062	$	(8,326	)		59	$	843,671	$	(13,353	)
Securities Held to Maturity
March 31, 2016
Residential mortgage-backed securities:
Agency mortgage-backed securities		1	$	922		(4	)		—	$	—		—			1	$	922	$	(4	)
Agency collateralized mortgage obligations		—		—		—			16		181,913		(2,931	)		16		181,913		(2,931	)
Non-agency collateralized mortgage obligations		2		1,294		(9	)		—		—		—			2		1,294		(9	)
Commercial mortgage-backed securities		1		8,579		(92	)		—		—		—			1		8,579		(92	)
States of the U.S. and political subdivisions		5		10,007		(173	)		1		2,055		(1	)		6		12,062		(174	)
		9	$	20,802	$	(278	)		17	$	183,968	$	(2,932	)		26	$	204,770	$	(3,210	)
December 31, 2015
U.S. government-sponsored entities		3	$	39,843	$	(173	)		1	$	14,778	$	(222	)		4	$	54,621	$	(395	)
Residential mortgage-backed securities:
Agency mortgage-backed securities		17		212,024		(1,159	)		1		917		(17	)		18		212,941		(1,176	)
Agency collateralized mortgage obligations		11		150,593		(1,434	)		14		160,716		(6,223	)		25		311,309		(7,657	)
Commercial mortgage-backed securities		3		46,278		(259	)		—		—		—			3		46,278		(259	)
States of the U.S. and political subdivisions		9		17,616		(101	)		—		—		—			9		17,616		(101	)
		43	$	466,354	$	(3,126	)		16	$	176,411	$	(6,462	)		59	$	642,765	$	(9,588	)

The Corporation does not intend to sell the debt securities and it is not more likely than not that the Corporation will be required to sell the securities before recovery of their amortized cost basis.

14

Other-Than-Temporary Impairment

The Corporation evaluates its investment securities portfolio for other-than-temporary impairment (OTTI) on a quarterly basis. Impairment is assessed at the individual security level. The Corporation considers an investment security impaired if the fair value of the security is less than its cost or amortized cost basis. The following table presents a summary of the cumulative credit-related OTTI charges recognized as components of earnings for securities for which a portion of an OTTI is recognized in other comprehensive income:

	Equities		Total
For the Three Months Ended March 31, 2016
Beginning balance	$	27	$	27
Loss where impairment was not previously recognized		—		—
Additional loss where impairment was previously recognized		—		—
Reduction due to credit impaired securities sold		—		—
Ending balance	$	27	$	27
For the Three Months Ended March 31, 2015
Beginning balance	$	27	$	27
Loss where impairment was not previously recognized		—		—
Additional loss where impairment was previously recognized		—		—
Reduction due to credit impaired securities sold		—		—
Ending balance	$	27	$	27

The Corporation did not recognize any impairment losses on securities for the three months ended March 31, 2016 or 2015.

States of the U.S. and Political Subdivisions

The Corporation’s municipal bond portfolio with a carrying amount of $288,813 as of March 31, 2016 is highly rated with an average entity-specific rating of AA and 97.0% of the portfolio rated A or better. General obligation bonds comprise 99.8% of the portfolio. Geographically, municipal bonds support the Corporation’s primary footprint as 94.8% of the securities are from municipalities located throughout Pennsylvania, Ohio and Maryland. The average holding size of the securities in the municipal bond portfolio is $1,730. In addition to the strong stand-alone ratings, 81.0% of the municipalities have some formal credit enhancement insurance that strengthens the creditworthiness of their issue. Management also reviews the credit profile of each issuer on a quarterly basis.

5. LOANS AND LEASES

Following is a summary of loans and leases, net of unearned income:

	Originated Loans		Acquired Loans		Total Loans and Leases
March 31, 2016
Commercial real estate	$	3,605,301	$	1,648,359	$	5,253,660
Commercial and industrial		2,574,321		471,946		3,046,267
Commercial leases		202,605		—		202,605
Total commercial loans and leases		6,382,227		2,120,305		8,502,532
Direct installment		1,686,037		104,765		1,790,802
Residential mortgages		1,105,680		425,699		1,531,379
Indirect installment		1,025,413		314		1,025,727
Consumer lines of credit		1,034,681		226,812		1,261,493
Other		53,666		—		53,666
	$	11,287,704	$	2,877,895	$	14,165,599

15

	Originated Loans		Acquired Loans		Total Loans and Leases
December 31, 2015
Commercial real estate	$	3,531,146	$	577,910	$	4,109,056
Commercial and industrial		2,534,351		67,371		2,601,722
Commercial leases		204,553		—		204,553
Total commercial loans and leases		6,270,050		645,281		6,915,331
Direct installment		1,660,717		45,919		1,706,636
Residential mortgages		1,044,689		351,282		1,395,971
Indirect installment		996,175		554		996,729
Consumer lines of credit		1,021,830		115,425		1,137,255
Other		38,518		—		38,518
	$	11,031,979	$	1,158,461	$	12,190,440

Commercial real estate includes both owner-occupied and non-owner-occupied loans secured by commercial properties. Commercial and industrial includes loans to businesses that are not secured by real estate. Commercial leases are made for new or used equipment. Direct installment is comprised of fixed-rate, closed-end consumer loans for personal, family or household use, such as home equity loans and automobile loans. Residential mortgages consist of conventional and jumbo mortgage loans for non-commercial properties. Indirect installment is comprised of loans originated by third parties and underwritten by the Corporation, primarily automobile loans. Consumer lines of credit include home equity lines of credit (HELOC) and consumer lines of credit that are either unsecured or secured by collateral other than home equity. Other is comprised primarily of credit cards, mezzanine loans and student loans.

The loan and lease portfolio consists principally of loans to individuals and small- and medium-sized businesses within the Corporation’s primary market area of Pennsylvania, eastern Ohio, Maryland and northern West Virginia. The total loan portfolio also contains consumer finance loans to individuals in Pennsylvania, Ohio, Tennessee and Kentucky, which totaled $180,889 or 1.3% of total loans and leases at March 31, 2016, compared to $186,162 or 1.5% of total loans and leases at December 31, 2015. Due to the relative size of the consumer finance loan portfolio, these loans are not segregated from other consumer loans.

As of March 31, 2016, 38.2% of the commercial real estate loans were owner-occupied, while the remaining 61.8% were non-owner-occupied, compared to 38.1% and 61.9%, respectively, as of December 31, 2015. As of March 31, 2016 and December 31, 2015, the Corporation had commercial construction loans of $458,388 and $352,322, respectively, representing 3.2% and 2.9% of total loans and leases at those respective dates.

Acquired Loans

All acquired loans were initially recorded at fair value at the acquisition date. The outstanding balance and the carrying amount of acquired loans included in the consolidated balance sheet are as follows:

	March 31, 2016		December 31, 2015
Accounted for under ASC 310-30:
Outstanding balance	$	2,849,661	$	1,258,418
Carrying amount		2,485,752		1,011,139
Accounted for under ASC 310-20:
Outstanding balance		403,252		146,161
Carrying amount		386,564		140,595
Total acquired loans:
Outstanding balance		3,252,913		1,404,579
Carrying amount		2,872,316		1,151,734

The carrying amount of purchased credit impaired loans included in the table above totaled $17,161 at March 31, 2016 and $5,940 at December 31, 2015, representing less than 1% of the carrying amount of total acquired loans as of each date.

16

The following table provides changes in accretable yield for all acquired loans accounted for under ASC 310-30. Loans accounted for under ASC 310-20 are not included in this table.

	Three Months Ended March 31,
	2016			2015
Balance at beginning of period	$	256,120		$	331,899
Acquisitions		284,092			—
Reduction due to unexpected early payoffs		(9,375	)		(11,909	)
Reclass from non-accretable difference		10,494			7,676
Disposals/transfers		(260	)		(118	)
Accretion		(13,204	)		(16,264	)
Balance at end of period	$	527,867		$	311,284

The following table reflects amounts at acquisition for all purchased loans subject to ASC 310-30 (impaired and non-impaired) acquired from METR.

	Acquired Impaired Loans			Acquired Performing Loans			Total
Contractually required cash flows at acquisition	$	99,611		$	2,074,623		$	2,174,234
Non-accretable difference (expected losses and foregone interest)		(52,995	)		(248,666	)		(301,661	)
Cash flows expected to be collected at acquisition		46,616			1,825,957			1,872,573
Accretable yield		(1,063	)		(283,029	)		(284,092	)
Basis in acquired loans at acquisition	$	45,553		$	1,542,928		$	1,588,481

In addition, loans purchased in the METR acquisition that were not subject to ASC 310-30 had the following balances at the date of acquisition: fair value of $273,966; unpaid principal balance of $296,484; and contractual cash flows not expected to be collected of $98,021.

Credit Quality

Management monitors the credit quality of the Corporation’s loan and lease portfolio on an ongoing basis. Measurement of delinquency and past due status is based on the contractual terms of each loan.

Non-performing loans include non-accrual loans and non-performing troubled debt restructurings (TDRs). Past due loans are reviewed on a monthly basis to identify loans for non-accrual status. The Corporation places a loan on non-accrual status and discontinues interest accruals on originated loans generally when principal or interest is due and has remained unpaid for a certain number of days or when the principal and interest is deemed uncollectible, unless the loan is both well secured and in the process of collection. Commercial loans are placed on non-accrual at 90 days, installment loans are placed on non-accrual at 120 days and residential mortgages and consumer lines of credit are generally placed on non-accrual at 180 days. When a loan is placed on non-accrual status, all unpaid interest is reversed. Non-accrual loans may not be restored to accrual status until all delinquent principal and interest have been paid and the ultimate ability to collect the remaining principal and interest is reasonably assured. TDRs are loans in which the borrower has been granted a concession on the interest rate or the original repayment terms due to financial distress.

17

Following is a summary of non-performing assets:

	March 31, 2016			December 31, 2015
Non-accrual loans	$	63,036		$	49,897
Troubled debt restructurings		21,453			22,028
Total non-performing loans		84,489			71,925
Other real estate owned (OREO)		50,526			38,918
Total non-performing assets	$	135,015		$	110,843
Asset quality ratios:
Non-performing loans as a percent of total loans and leases		0.60	%		0.59	%
Non-performing loans + OREO as a percent of total loans and leases + OREO		0.95	%		0.91	%
Non-performing assets as a percent of total assets		0.66	%		0.63	%

The carrying value of residential OREO held as a result of obtaining physical possession upon completion of a foreclosure or through completion of a deed in lieu of foreclosure totaled $4,590 at March 31, 2016 and $5,219 at December 31, 2015. The recorded investment of consumer mortgage loans secured by residential real estate properties for which formal foreclosure proceedings are in process at March 31, 2016 and December 31, 2015 totaled $10,174 and $11,725, respectively.

The following tables provide an analysis of the aging of the Corporation’s past due loans by class, segregated by loans and leases originated and loans acquired:

	30-89 Days Past Due		³ 90 Days Past Due and Still Accruing		Non- Accrual		Total Past Due		Current		Total Loans and Leases
Originated Loans and Leases
March 31, 2016
Commercial real estate	$	9,342	$	1	$	24,083	$	33,426	$	3,571,875	$	3,605,301
Commercial and industrial		4,653		3		24,627		29,283		2,545,038		2,574,321
Commercial leases		1,422		15		894		2,331		200,274		202,605
Total commercial loans and leases		15,417		19		49,604		65,040		6,317,187		6,382,227
Direct installment		6,845		3,463		5,646		15,954		1,670,083		1,686,037
Residential mortgages		7,398		1,545		3,446		12,389		1,093,291		1,105,680
Indirect installment		5,479		369		1,347		7,195		1,018,218		1,025,413
Consumer lines of credit		1,523		661		1,954		4,138		1,030,543		1,034,681
Other		49		63		—		112		53,554		53,666
	$	36,711	$	6,120	$	61,997	$	104,828	$	11,182,876	$	11,287,704
December 31, 2015
Commercial real estate	$	11,006	$	1	$	23,503	$	34,510	$	3,496,636	$	3,531,146
Commercial and industrial		5,409		3		14,382		19,794		2,514,557		2,534,351
Commercial leases		924		—		659		1,583		202,970		204,553
Total commercial loans and leases		17,339		4		38,544		55,887		6,214,163		6,270,050
Direct installment		9,254		3,813		4,806		17,873		1,642,844		1,660,717
Residential mortgages		8,135		1,470		2,882		12,487		1,032,202		1,044,689
Indirect installment		9,472		379		1,361		11,212		984,963		996,175
Consumer lines of credit		2,410		1,189		1,181		4,780		1,017,050		1,021,830
Other		73		169		—		242		38,276		38,518
	$	46,683	$	7,024	$	48,774	$	102,481	$	10,929,498	$	11,031,979

18

	30-89 Days Past Due		³ 90 Days Past Due and Still Accruing		Non- Accrual		Total Past Due (1) (2)		Current		Discount			Total Loans
Acquired Loans
March 31, 2016
Commercial real estate	$	27,329	$	23,563	$	740	$	51,632	$	1,695,949	$	(99,222	)	$	1,648,359
Commercial and industrial		1,879		6,596		152		8,627		499,764		(36,445	)		471,946
Total commercial loans		29,208		30,159		892		60,259		2,195,713		(135,667	)		2,120,305
Direct installment		2,855		958		—		3,813		97,964		2,988			104,765
Residential mortgages		11,010		15,498		—		26,508		436,528		(37,337	)		425,699
Indirect installment		—		6		—		6		413		(105	)		314
Consumer lines of credit		1,578		1,292		147		3,017		228,682		(4,887	)		226,812
	$	44,651	$	47,913	$	1,039	$	93,603	$	2,959,300	$	(175,008	)	$	2,877,895
December 31, 2015
Commercial real estate	$	6,399	$	12,752	$	931	$	20,082	$	593,128	$	(35,300	)	$	577,910
Commercial and industrial		1,065		616		103		1,784		72,037		(6,450	)		67,371
Total commercial loans		7,464		13,368		1,034		21,866		665,165		(41,750	)		645,281
Direct installment		837		659		—		1,496		43,596		827			45,919
Residential mortgages		5,871		15,136		—		21,007		366,742		(36,467	)		351,282
Indirect installment		32		9		—		41		571		(58	)		554
Consumer lines of credit		830		546		89		1,465		117,443		(3,483	)		115,425
	$	15,034	$	29,718	$	1,123	$	45,875	$	1,193,517	$	(80,931	)	$	1,158,461

(1) Past due information for acquired loans is based on the contractual balance outstanding at March 31, 2016 and December 31, 2015.

(2) Acquired loans are considered performing upon acquisition, regardless of whether the customer is contractually delinquent, as long as the Corporation can reasonably estimate the timing and amount of expected cash flows on such loans. In these instances, the Corporation does not consider acquired contractually delinquent loans to be non-accrual or non-performing and continues to recognize interest income on these loans using the accretion method. Acquired loans are considered non-accrual or non-performing when, due to credit deterioration or other factors, the Corporation determines it is no longer able to reasonably estimate the timing and amount of expected cash flows on such loans. The Corporation does not recognize interest income on acquired loans considered non-accrual or non-performing.

The Corporation utilizes the following categories to monitor credit quality within its commercial loan and lease portfolio:

Rating Category	Definition
Pass	in general, the condition and performance of the borrower is satisfactory or better
Special Mention	in general, the condition of the borrower has deteriorated, requiring an increased level of monitoring
Substandard	in general, the condition and performance of the borrower has significantly deteriorated and could further deteriorate if deficiencies are not corrected
Doubtful	in general, the condition of the borrower has significantly deteriorated and the collection in full of both principal and interest is highly questionable or improbable

The use of these internally assigned credit quality categories within the commercial loan and lease portfolio permits management’s use of transition matrices to estimate a quantitative portion of credit risk. The Corporation’s internal credit risk grading system is based on past experiences with similarly graded loans and leases and conforms with regulatory categories. In general, loan and lease risk ratings within each category are reviewed on an ongoing basis

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according to the Corporation’s policy for each class of loans and leases. Each quarter, management analyzes the resulting ratings, as well as other external statistics and factors such as delinquency, to track the migration performance of the commercial loan and lease portfolio. Loans and leases within the Pass credit category or that migrate toward the Pass credit category generally have a lower risk of loss compared to loans and leases that migrate toward the Substandard or Doubtful credit categories. Accordingly, management applies higher risk factors to Substandard and Doubtful credit categories.

The following tables present a summary of the Corporation’s commercial loans and leases by credit quality category, segregated by loans and leases originated and loans acquired:

	Originated Commercial Loan and Lease Credit Quality Categories
	Pass		Special Mention		Substandard		Doubtful		Total
Originated Loans and Leases
March 31, 2016
Commercial real estate	$	3,445,547	$	97,426	$	61,928	$	400	$	3,605,301
Commercial and industrial		2,346,483		114,408		107,818		5,612		2,574,321
Commercial leases		194,947		3,121		4,537		—		202,605
	$	5,986,977	$	214,955	$	174,283	$	6,012	$	6,382,227
December 31, 2015
Commercial real estate	$	3,416,527	$	52,887	$	61,411	$	321	$	3,531,146
Commercial and industrial		2,335,103		109,539		87,380		2,329		2,534,351
Commercial leases		198,207		2,447		3,899		—		204,553
	$	5,949,837	$	164,873	$	152,690	$	2,650	$	6,270,050
Acquired Loans
March 31, 2016
Commercial real estate	$	1,331,863	$	156,709	$	152,929	$	6,858	$	1,648,359
Commercial and industrial		369,178		23,214		77,897		1,657		471,946
	$	1,701,041	$	179,923	$	230,826	$	8,515	$	2,120,305
December 31, 2015
Commercial real estate	$	464,162	$	47,619	$	66,129		—	$	577,910
Commercial and industrial		56,446		3,182		7,743		—		67,371
	$	520,608	$	50,801	$	73,872		—	$	645,281

Credit quality information for acquired loans is based on the contractual balance outstanding at March 31, 2016 and December 31, 2015. The increase in acquired loans in 2016 relates to the METR acquisition completed on February 13, 2016.

The Corporation uses delinquency transition matrices within the consumer and other loan classes to enable management to estimate a quantitative portion of credit risk. Each month, management analyzes payment and volume activity, FICO scores and other external factors such as unemployment, to determine how consumer loans are performing.

Following is a table showing originated consumer loans by payment status:

	Originated Consumer Loan Credit Quality by Payment Status
	Performing		Non- Performing		Total
March 31, 2016
Direct installment	$	1,671,896	$	14,141	$	1,686,037
Residential mortgages		1,092,329		13,351		1,105,680
Indirect installment		1,023,909		1,504		1,025,413
Consumer lines of credit		1,031,798		2,883		1,034,681
Other		53,666		—		53,666
	$	4,873,598	$	31,879	$	4,905,477

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	Originated Consumer Loan Credit Quality by Payment Status
	Performing		Non- Performing		Total
December 31, 2015
Direct installment	$	1,646,925	$	13,792	$	1,660,717
Residential mortgages		1,031,926		12,763		1,044,689
Indirect installment		994,661		1,514		996,175
Consumer lines of credit		1,019,783		2,047		1,021,830
Other		38,518		—		38,518
	$	4,731,813	$	30,116	$	4,761,929

Loans and leases are designated as impaired when, in the opinion of management, based on current information and events, the collection of principal and interest in accordance with the loan and lease contract is doubtful. Typically, the Corporation does not consider loans and leases for impairment unless a sustained period of delinquency (i.e., 90-plus days) is noted or there are subsequent events that impact repayment probability (i.e., negative financial trends, bankruptcy filings, imminent foreclosure proceedings, etc.). Impairment is evaluated in the aggregate for consumer installment loans, residential mortgages, consumer lines of credit and commercial loan and lease relationships less than $500 based on loan and lease segment loss given default. For commercial loan relationships greater than or equal to $500, a specific valuation allowance is allocated, if necessary, so that the loan is reported net, at the present value of estimated future cash flows using a market interest rate or at the fair value of collateral if repayment is expected solely from the collateral. Consistent with the Corporation’s existing method of income recognition for loans and leases, interest on impaired loans, except those classified as non-accrual, is recognized as income using the accrual method. Impaired loans, or portions thereof, are charged off when deemed uncollectible.

Following is a summary of information pertaining to originated loans and leases considered to be impaired, by class of loan and lease:

	Unpaid Contractual Principal Balance		Recorded Investment With No Specific Reserve		Recorded Investment With Specific Reserve		Total Recorded Investment		Specific Reserve		Average Recorded Investment
At or for the Three Months Ended March 31, 2016
Commercial real estate	$	33,434	$	24,035	$	1,520	$	25,555	$	400	$	25,374
Commercial and industrial		25,965		12,042		12,479		24,521		5,612		19,620
Commercial leases		894		894		—		894		—		—
Total commercial loans and leases		60,293		36,971		13,999		50,970		6,012		44,994
Direct installment		15,135		14,141		—		14,141		—		13,966
Residential mortgages		13,881		13,351		—		13,351		—		13,058
Indirect installment		3,667		1,504		—		1,504		—		1,509
Consumer lines of credit		3,436		2,883		—		2,883		—		2,465
	$	96,412	$	68,850	$	13,999	$	82,849	$	6,012	$	75,992
At or for the Year Ended December 31, 2015
Commercial real estate	$	33,780	$	24,423	$	772	$	25,195	$	321	$	26,143
Commercial and industrial		15,860		9,176		5,543		14,719		2,329		12,298
Commercial leases		659		659		—		659		—		747
Total commercial loans and leases		50,299		34,258		6,315		40,573		2,650		39,188
Direct installment		14,679		13,792		—		13,792		—		13,267
Residential mortgages		13,394		12,763		—		12,763		—		12,896
Indirect installment		3,745		1,514		—		1,514		—		1,401
Consumer lines of credit		2,408		2,047		—		2,047		—		2,198
	$	84,525	$	64,374	$	6,315	$	70,689	$	2,650	$	68,950

Interest income is generally no longer recognized once a loan becomes impaired.

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These tables do not reflect the additional allowance for credit losses relating to acquired loans in the following pools and categories: commercial real estate of $2,821; commercial and industrial of $499; direct installment of $1,322; residential mortgages of $487; indirect installment of $222; and consumer lines of credit of $229, totaling $5,580 at March 31, 2016 and commercial real estate of $3,073; commercial and industrial of $695; direct installment of $1,557; residential mortgages of $659; indirect installment of $221; and consumer lines of credit of $522, totaling $6,727 at December 31, 2015.

Troubled Debt Restructurings

TDRs are loans whose contractual terms have been modified in a manner that grants a concession to a borrower experiencing financial difficulties. TDRs typically result from loss mitigation activities and could include the extension of a maturity date, interest rate reduction, principal forgiveness, deferral or decrease in payments for a period of time and other actions intended to minimize the economic loss and to avoid foreclosure or repossession of collateral.

Following is a summary of the payment status of originated TDRs:

	March 31, 2016		December 31, 2015
Accruing:
Performing	$	16,508	$	15,165
Non-performing		21,453		22,028
Non-accrual		11,953		8,307
	$	49,914	$	45,500

TDRs that are accruing and performing include loans that met the criteria for non-accrual of interest prior to restructuring for which the Corporation can reasonably estimate the timing and amount of the expected cash flows on such loans and for which the Corporation expects to fully collect the new carrying value of the loans. During the three months ended March 31, 2016, the Corporation returned to performing status $2,488 in restructured residential mortgage loans that have consistently met their modified obligations for more than six months. TDRs that are accruing and non-performing are comprised of consumer loans that have not demonstrated a consistent repayment pattern on the modified terms for more than six months, however it is expected that the Corporation will collect all future principal and interest payments. TDRs that are on non-accrual are not placed on accruing status until all delinquent principal and interest have been paid and the ultimate collectability of the remaining principal and interest is reasonably assured. Some loan modifications classified as TDRs may not ultimately result in the full collection of principal and interest, as modified, and may result in potential incremental losses which are factored into the allowance for credit losses.

Excluding purchased impaired loans, commercial loans over $500 whose terms have been modified in a TDR are generally placed on non-accrual, individually analyzed and measured for estimated impairment based on the fair value of the underlying collateral. The Corporation’s allowance for credit losses included specific reserves for commercial TDRs of $298 and $300 at March 31, 2016 and December 31, 2015, respectively, and pooled reserves for individual loans under $500 of $865 and $929 for those same respective periods, based on loan segment loss given default. Upon default, the amount of the recorded investment in the TDR in excess of the fair value of the collateral, less estimated selling costs, is generally considered a confirmed loss and is charged-off against the allowance for credit losses.

All other classes of loans, which are primarily secured by residential properties, whose terms have been modified in a TDR are pooled and measured for estimated impairment based on the expected net present value of the estimated future cash flows of the pool. The Corporation’s allowance for credit losses included pooled reserves for these classes of loans of $3,405 and $3,515 at March 31, 2016 and December 31, 2015, respectively. Upon default of an individual loan, the Corporation’s charge-off policy is followed accordingly for that class of loan.

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The majority of TDRs are the result of interest rate concessions for a limited period of time. Following is a summary of originated loans, by class, that have been restructured:

	Three Months Ended March 31, 2016						Three Months Ended March 31, 2015
	Number of Contracts		Pre- Modification Outstanding Recorded Investment		Post- Modification Outstanding Recorded Investment		Number of Contracts		Pre- Modification Outstanding Recorded Investment		Post- Modification Outstanding Recorded Investment
Commercial real estate		4	$	778	$	760		2	$	312	$	196
Commercial and industrial		2		5,565		3,279		—		—		—
Total commercial loans		6		6,343		4,039		2		312		196
Direct installment		145		1,991		1,961		131		1,526		1,484
Residential mortgages		18		968		951		14		581		631
Indirect installment		3		11		12		5		16		16
Consumer lines of credit		20		243		238		16		270		270
		192	$	9,556	$	7,201		168	$	2,705	$	2,597

Following is a summary of originated TDRs, by class of loans and leases, for which there was a payment default, excluding loans that were either charged-off or cured by period end. Default occurs when a loan is 90 days or more past due and is within 12 months of restructuring.

	Three Months Ended March 31, 2016 (1)				Three Months Ended March 31, 2015 (1)
	Number of Contracts		Recorded Investment		Number of Contracts		Recorded Investment
Commercial real estate		—	$	—		—	$	—
Commercial and industrial		—		—		—		—
Total commercial loans		—		—		—		—
Direct installment		28		175		37		105
Residential mortgages		1		50		2		102
Indirect installment		4		5		3		4
Consumer lines of credit		1		10		1		92
		34	$	240		43	$	303

(1) The recorded investment is as of period end.

6. ALLOWANCE FOR CREDIT LOSSES

The allowance for credit losses addresses credit losses inherent in the existing loan and lease portfolio and is presented as a reserve against loans and leases on the consolidated balance sheet. Loan and lease losses are charged off against the allowance for credit losses, with recoveries of amounts previously charged off credited to the allowance for credit losses. Provisions for credit losses are charged to operations based on management’s periodic evaluation of the adequacy of the allowance for credit losses.

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Following is a summary of changes in the allowance for credit losses, by loan and lease class:

	Balance at Beginning of Period		Charge- Offs			Recoveries		Net Charge- Offs			Provision for credit losses			Balance at End of Period
Three Months Ended March 31, 2016
Commercial real estate	$	41,741	$	(1,369	)	$	597	$	(772	)	$	2,929		$	43,898
Commercial and industrial		41,023		(298	)		190		(108	)		6,948			47,863
Commercial leases		2,541		(114	)		14		(100	)		377			2,818
Total commercial loans and leases		85,305		(1,781	)		801		(980	)		10,254			94,579
Direct installment		21,587		(2,667	)		454		(2,213	)		1,351			20,725
Residential mortgages		7,909		(85	)		19		(66	)		(33	)		7,810
Indirect installment		9,889		(1,942	)		262		(1,680	)		856			9,065
Consumer lines of credit		9,582		(474	)		56		(418	)		(197	)		8,967
Other		1,013		(554	)		6		(548	)		609			1,074
Total allowance on originated loans and leases		135,285		(7,503	)		1,598		(5,905	)		12,840			142,220
Purchased credit-impaired loans		834		(160	)		—		(160	)		30			704
Other acquired loans		5,893		(221	)		306		85			(1,102	)		4,876
Total allowance on acquired loans		6,727		(381	)		306		(75	)		(1,072	)		5,580
Total allowance	$	142,012	$	(7,884	)	$	1,904	$	(5,980	)	$	11,768		$	147,800
Three Months Ended March 31, 2015
Commercial real estate	$	37,588	$	(1,001	)	$	209	$	(792	)	$	1,996		$	38,792
Commercial and industrial		32,645		(684	)		120		(564	)		722			32,803
Commercial leases		2,398		(93	)		10		(83	)		261			2,576
Total commercial loans and leases		72,631		(1,778	)		339		(1,439	)		2,979			74,171
Direct installment		20,538		(2,433	)		269		(2,164	)		2,830			21,204
Residential mortgages		8,024		(511	)		15		(496	)		943			8,471
Indirect installment		7,504		(1,280	)		302		(978	)		1,131			7,657
Consumer lines of credit		8,496		(410	)		40		(370	)		764			8,890
Other		759		(335	)		11		(324	)		419			854
Total allowance on originated loans and leases		117,952		(6,747	)		976		(5,771	)		9,066			121,247
Purchased credit-impaired loans		660		(64	)		19		(45	)		6			621
Other acquired loans		7,314		(77	)		330		253			(936	)		6,631
Total allowance on acquired loans		7,974		(141	)		349		208			(930	)		7,252
Total allowance	$	125,926	$	(6,888	)	$	1,325	$	(5,563	)	$	8,136		$	128,499

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Following is a summary of the individual and collective originated allowance for credit losses and corresponding loan and lease balances by class:

	Originated Allowance				Originated Loans and Leases Outstanding
	Individually Evaluated for Impairment		Collectively Evaluated for Impairment		Loans and Leases		Individually Evaluated for Impairment		Collectively Evaluated for Impairment
March 31, 2016
Commercial real estate	$	400	$	43,498	$	3,605,301	$	14,260	$	3,591,041
Commercial and industrial		5,612		42,251		2,574,321		19,679		2,554,642
Commercial leases		—		2,818		202,605		—		202,605
Total commercial loans and leases		6,012		88,567		6,382,227		33,939		6,348,288
Direct installment		—		20,725		1,686,037		—		1,686,037
Residential mortgages		—		7,810		1,105,680		—		1,105,680
Indirect installment		—		9,065		1,025,413		—		1,025,413
Consumer lines of credit		—		8,967		1,034,681		—		1,034,681
Other		—		1,074		53,666		—		53,666
	$	6,012	$	136,208	$	11,287,704	$	33,939	$	11,253,765
December 31, 2015
Commercial real estate	$	321	$	41,420	$	3,531,146	$	12,904	$	3,518,242
Commercial and industrial		2,329		38,694		2,534,351		10,802		2,523,549
Commercial leases		—		2,541		204,553		—		204,553
Total commercial loans and leases		2,650		82,655		6,270,050		23,706		6,246,344
Direct installment		—		21,587		1,660,717		—		1,660,717
Residential mortgages		—		7,909		1,044,689		—		1,044,689
Indirect installment		—		9,889		996,175		—		996,175
Consumer lines of credit		—		9,582		1,021,830		—		1,021,830
Other		—		1,013		38,518		—		38,518
	$	2,650	$	132,635	$	11,031,979	$	23,706	$	11,008,273

7. BORROWINGS

Following is a summary of short-term borrowings:

	March 31, 2016		December 31, 2015
Securities sold under repurchase agreements	$	297,562	$	266,732
Federal Home Loan Bank advances		490,000		1,090,000
Federal funds purchased		652,000		568,000
Subordinated notes		124,326		124,164
	$	1,563,888	$	2,048,896

Securities sold under repurchase agreements is comprised of customer repurchase agreements, which are sweep accounts with next day maturities utilized by larger commercial customers to earn interest on their funds. Securities are pledged to these customers in an amount equal to the outstanding balance.

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Following is a summary of long-term borrowings:

	March 31, 2016		December 31, 2015
Federal Home Loan Bank advances	$	425,147	$	400,017
Subordinated notes		85,206		84,668
Junior subordinated debt		48,572		58,298
Other subordinated debt		98,520		98,497
	$	657,445	$	641,480

The Corporation’s banking affiliate has available credit with the FHLB of $5,543,082 of which $915,147 was used as of March 31, 2016. These advances are secured by loans collateralized by residential mortgages, HELOCs, commercial real estate and FHLB stock and are scheduled to mature in various amounts periodically through the year 2021. Effective interest rates paid on the long-term advances ranged from 0.76% to 4.19% for both the three months ended March 31, 2016 and the year ended December 31, 2015.

The junior subordinated debt is comprised of debt securities issued by the Corporation in relation to its two unconsolidated subsidiary trusts (collectively, the Trusts): F.N.B. Statutory Trust II and Omega Financial Capital Trust I. One hundred percent of the common equity of each Trust is owned by the Corporation. The Trusts were formed for the purpose of issuing Corporation-obligated mandatorily redeemable capital securities, or trust preferred securities (TPS) to third-party investors. The proceeds from the sale of TPS and the issuance of common equity by the Trusts were invested in junior subordinated debt securities issued by the Corporation, which are the sole assets of each Trust. Since third-party investors are the primary beneficiaries, the Trusts are not consolidated in the Corporation’s financial statements. The Trusts pay dividends on the TPS at the same rate as the distributions paid by the Corporation on the junior subordinated debt held by the Trusts. Omega Financial Capital Trust I was assumed as a result of an acquisition.

Distributions on the junior subordinated debt issued to the Trusts are recorded as interest expense by the Corporation. The TPS are subject to mandatory redemption, in whole or in part, upon repayment of the junior subordinated debt. The TPS are eligible for redemption, at any time, at the Corporation’s discretion. Under capital guidelines, beginning in 2016, the entire balance of TPS is included in tier 2 capital. The Corporation has entered into agreements which, when taken collectively, fully and unconditionally guarantee the obligations under the TPS subject to the terms of each of the guarantees.

During 2016, the Corporation redeemed $10,000 of the TPS issued by Omega Financial Capital Trust I.

The following table provides information relating to the Trusts as of March 31, 2016:

	Trust Preferred Securities		Common Securities		Junior Subordinated Debt		Stated Maturity Date		Interest Rate
F.N.B. Statutory Trust II	$	21,500	$	665	$	22,165		6/15/36		2.28	%	Variable; 3-month LIBOR + 165 basis points (bps)
Omega Financial Capital Trust I		26,000		1,114		26,407		10/18/34		2.81	%	Variable; 3-month LIBOR + 219 bps
	$	47,500	$	1,779	$	48,572

8. DERIVATIVE AND HEDGING ACTIVITIES

The Corporation is exposed to certain risks arising from both its business operations and economic conditions. The Corporation principally manages its exposures to a wide variety of business and operational risks through management of its core business activities. The Corporation manages economic risks, including interest rate risk, primarily by managing the amount, source, and duration of its assets and liabilities, and through the use of derivative instruments. Derivative instruments are used to reduce the effects that changes in interest rates may have on net income and cash flows. The Corporation also uses derivative instruments to facilitate transactions on behalf of its customers.

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All derivatives are carried on the consolidated balance sheet at fair value and do not take into account the effects of master netting arrangements the Corporation has with other financial institutions. Credit risk is included in the determination of the estimated fair value of derivatives. Derivative assets are classified in the consolidated balance sheet under other assets and derivative liabilities are classified in the consolidated balance sheet under other liabilities. Changes in fair value are recognized in earnings except for certain changes related to derivative instruments designated as part of a cash flow hedging relationship.

The following table presents notional amounts and gross fair values of all derivative assets and derivative liabilities held by the Corporation:

	March 31, 2016						December 31, 2015
	Notional		Fair Value				Notional		Fair Value
	Amount		Asset		Liability		Amount		Asset		Liability
Gross Derivatives
Subject to master netting arrangements:
Interest rate contracts – designated	$	250,000	$	7,859	$	1,341	$	250,000	$	3,178	$	962
Interest rate swaps – not designated		1,373,959		—		80,625		1,262,964		1		50,491
Equity contracts – not designated		1,180		34		—		1,180		18		—
Total subject to master netting arrangements		1,625,139		7,893		81,966		1,514,144		3,197		51,453
Not subject to master netting arrangements:
Interest rate swaps – not designated		1,373,959		80,091		—		1,262,964		49,998		1
Credit risk contracts – not designated		134,204		22		219		114,753		7		133
Equity contracts – not designated		1,180		—		34		1,180		—		18
Total not subject to master netting arrangements		1,509,343		80,113		253		1,378,897		50,005		152
	$	3,134,482	$	88,006	$	82,219	$	2,893,041	$	53,202	$	51,605

Derivatives Designated as Hedging Instruments under GAAP

Interest Rate Contracts. The Corporation entered into interest rate derivative agreements to modify the interest rate characteristics of certain commercial loans and one of its FHLB advances from variable rate to fixed rate in order to reduce the impact of changes in future cash flows due to market interest rate changes. These agreements are designated as cash flow hedges (i.e., hedging the exposure to variability in expected future cash flows). The effective portion of the derivative’s gain or loss is initially reported as a component of other comprehensive income and subsequently reclassified into earnings in the same line item associated with the forecasted transaction when the forecasted transaction affects earnings. The ineffective portion of the gain or loss is reported in earnings immediately.

The notional amount of these interest rate derivative agreements totaled $250,000 at both March 31, 2016 and December 31, 2015. Fair values included in other assets and other liabilities on the consolidated balance sheet applicable to these agreements amounted to $7,859 and $1,341, respectively, at March 31, 2016, and $3,178 and $962, respectively, at December 31, 2015. For the three months ended March 31, 2016, the amount reclassified from accumulated other comprehensive income (AOCI) to interest income and interest expense totaled $687 ($446 net of tax) and $150 ($97 net of tax), respectively.

As of March 31, 2016, the maximum length of time over which forecasted interest cash flows are hedged is seven years. In the twelve months that follow March 31, 2016, the Corporation expects to reclassify from the amount currently reported in AOCI net derivative gains of $1,979 ($1,286 net of tax), in association with interest on the hedged loans and FHLB advance. This amount could differ from amounts actually recognized due to changes in interest rates, hedge de-designations, and the addition of other hedges subsequent to March 31, 2016.

There were no components of derivative gains or losses excluded from the assessment of hedge effectiveness related to these cash flow hedges. For the three months ended March 31, 2016 and 2015, there was no hedge ineffectiveness. Also, during the three months ended March 31, 2016 and 2015, there were no gains or losses from cash flow hedge derivatives reclassified to earnings because it became probable that the original forecasted transactions would not occur.

27

Derivatives Not Designated as Hedging Instruments under GAAP

Interest Rate Swaps. The Corporation enters into interest rate swap agreements to meet the financing, interest rate and equity risk management needs of qualifying commercial loan customers. These agreements provide the customer the ability to convert from variable to fixed interest rates. The credit risk associated with derivatives executed with customers is essentially the same as that involved in extending loans and is subject to normal credit policies and monitoring. Swap derivative transactions with customers are not subject to enforceable master netting arrangements and are generally secured by rights to non-financial collateral, such as real and personal property.

The Corporation enters into positions with a derivative counterparty in order to offset its exposure on the fixed components of the customer interest rate swap agreements. The Corporation seeks to minimize counterparty credit risk by entering into transactions only with high-quality financial dealer institutions. These arrangements meet the definition of derivatives, but are not designated as hedging instruments under ASC 815, Derivatives and Hedging. Substantially all contracts with dealers that require central clearing (generally, transactions since June 10, 2014) are novated to a SEC registered clearing agency who becomes the Corporation’s counterparty.

The notional amount of these customer derivative agreements and the offsetting derivative counterparty positions each totaled $1,373,959 at March 31, 2016. Fair values included in other assets and other liabilities on the consolidated balance sheet applicable to these agreements amounted to $80,091 and $80,625, respectively, at March 31, 2016. At December 31, 2015, the notional amount of these customer derivative agreements and the offsetting derivative counterparty positions each totaled $1,262,964. At December 31, 2015, fair values included in other assets and other liabilities on the consolidated balance sheet amounted to $49,999 and $50,492, respectively.

The interest rate swap agreement with the loan customer and with the counterparty is reported at fair value in other assets and other liabilities on the consolidated balance sheet with any resulting gain or loss recorded in current period earnings as other income or other expense.

Credit Risk Contracts. The Corporation purchases and sells credit protection under risk participation agreements to share with other counterparties some of the credit exposure related to interest rate derivative contracts or to take on credit exposure to generate revenue. The Corporation will make/receive payments under these agreements if a customer defaults on its obligation to perform under certain derivative swap contracts.

Risk participation agreements sold with notional amounts totaling $83,010 as of March 31, 2016 have remaining terms ranging from one to fourteen years. Under these agreements, the Corporation’s maximum exposure assuming a customer defaults on their obligation to perform under certain derivative swap contracts with third parties would be $219 at March 31, 2016 and $133 at December 31, 2015.

The fair values of risk participation agreements purchased and sold were not material at March 31, 2016 and December 31, 2015.

Counterparty Credit Risk

The Corporation is party to master netting arrangements with most of its swap derivative counterparties. Collateral, usually marketable securities and/or cash, is exchanged between the Corporation and its counterparties, and is generally subject to thresholds and transfer minimums. For swap transactions that require central clearing, the Corporation posts cash to its clearing agency. Collateral positions are valued daily, and adjustments to amounts received and pledged by the Corporation are made as appropriate to maintain proper collateralization for these transactions.

Certain master netting agreements contain provisions that, if violated, could cause the counterparties to request immediate settlement or demand full collateralization under the derivative instrument. If the Corporation had breached its agreements with its derivative counterparties it would be required to settle its obligations under the agreements at the termination value and would be required to pay an additional $1,894 and $1,333 as of March 31, 2016 and December 31, 2015, respectively, in excess of amounts previously posted as collateral with the respective counterparty.

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The following table presents information about derivative assets and derivative liabilities that are subject to enforceable master netting arrangements as well as those not subject to enforceable master netting arrangements:

	Gross Amount		Gross Amounts Offset in the Balance Sheet		Net Amount Presented in the Balance Sheet
March 31, 2016
Derivative Assets
Subject to master netting arrangements:
Interest rate contracts
Designated	$	7,859		—	$	7,859
Not designated		—		—		—
Equity contracts – not designated		34		—		34
Not subject to master netting arrangements:
Interest rate contracts – not designated		80,091		—		80,091
Credit contracts – not designated		22		—		22
	$	88,006		—	$	88,006
Derivative Liabilities
Subject to master netting arrangements:
Interest rate contracts
Designated	$	1,341		—	$	1,341
Not designated		80,625		—		80,625
Not subject to master netting arrangements:
Interest rate contracts – not designated		—		—		—
Credit contracts – not designated		219		—		219
Equity contracts – not designated		34		—		34
	$	82,219		—	$	82,219
December 31, 2015
Derivative Assets
Subject to master netting arrangements:
Interest rate contracts
Designated	$	3,178		—	$	3,178
Not designated		1		—		1
Equity contracts – not designated		18		—		18
Not subject to master netting arrangements:
Interest rate contracts – not designated		49,998		—		49,998
Credit contracts – not designated		7				7
	$	53,202		—	$	53,202
Derivative Liabilities
Subject to master netting arrangements:
Interest rate contracts
Designated	$	962		—	$	962
Not designated		50,491		—		50,491
Not subject to master netting arrangements:
Interest rate contracts – not designated		1		—		1
Credit contracts – not designated		133				133
Equity contracts – not designated		18		—		18
	$	51,605		—	$	51,605

29

The following table presents a reconciliation of the net amounts of derivative assets and derivative liabilities presented in the balance sheet to the net amounts that would result in the event of offset:

	Net Amount Presented in the Balance Sheet		Amount Not Offset in the Balance Sheet
			Financial Instruments		Cash Collateral		Net Amount
March 31, 2016
Derivative Assets
Interest rate contracts:
Designated	$	7,859	$	5,052	$	2,807		—
Not designated		—		—		—		—
Equity contracts – not designated		34		34		—		—
	$	7,893	$	5,086	$	2,807		—
Derivative Liabilities
Interest rate contracts:
Designated	$	1,341	$	—	$	1,341	$	—
Not designated		80,625		31,472		47,487		1,666
	$	81,966	$	31,472	$	48,828	$	1,666
December 31, 2015
Derivative Assets
Interest rate contracts:
Designated	$	3,178	$	1,516	$	1,662		—
Not designated		1		1		—		—
Equity contracts – not designated		18		18		—		—
	$	3,197	$	1,535	$	1,662		—
Derivative Liabilities
Interest rate contracts:
Designated	$	962	$	792	$	170	$	—
Not designated		50,491		24,579		24,632		1,280
	$	51,453	$	25,371	$	24,802	$	1,280

The following table presents the effect of certain of the Corporation’s derivative financial instruments on the income statement:

	Income	Three Months Ended
	Statement	March 31,
	Location	2016			2015
Interest Rate Contracts	Interest income—loans and leases	$	687		$	809
Interest Rate Contracts	Interest expense—short-term borrowings		150			—
Interest Rate Swaps	Other income		(41	)		(107	)
Credit Risk Contracts	Other income		(71	)		—

Other

The Corporation has entered into interest rate lock commitments to originate residential mortgage loans held for sale and forward commitments to sell residential mortgage loans to secondary market investors. These arrangements are considered derivative instruments. The fair values of the Corporation’s rate lock commitments to customers and commitments with investors at March 31, 2016 and December 31, 2015 are not material.

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9. COMMITMENTS, CREDIT RISK AND CONTINGENCIES

The Corporation has commitments to extend credit and standby letters of credit that involve certain elements of credit risk in excess of the amount stated in the consolidated balance sheet. The Corporation’s exposure to credit loss in the event of non-performance by the customer is represented by the contractual amount of those instruments. The credit risk associated with loan commitments and standby letters of credit is essentially the same as that involved in extending loans and leases to customers and is subject to normal credit policies. Since many of these commitments expire without being drawn upon, the total commitment amounts do not necessarily represent future cash flow requirements.

Following is a summary of off-balance sheet credit risk information:

	March 31, 2016		December 31, 2015
Commitments to extend credit	$	4,463,138	$	3,781,719
Standby letters of credit		118,167		92,979

At March 31, 2016, funding of 75.4% of the commitments to extend credit was dependent on the financial condition of the customer. The Corporation has the ability to withdraw such commitments at its discretion. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Based on management’s credit evaluation of the customer, collateral may be deemed necessary. Collateral requirements vary and may include accounts receivable, inventory, property, plant and equipment and income-producing commercial properties.

Standby letters of credit are conditional commitments issued by the Corporation that may require payment at a future date. The credit risk involved in issuing letters of credit is quantified on a quarterly basis, through the review of historical performance of the Corporation’s portfolios and recorded as a liability on the Corporation’s balance sheet.

In addition, subordinated notes issued by a wholly-owned finance subsidiary of the Corporation are fully and unconditionally guaranteed by the Corporation.

Other Legal Proceedings

In the ordinary course of business, the Corporation and its subsidiaries are routinely named as defendants in, or made parties to, pending and potential legal actions. Also, as regulated entities, the Corporation and its subsidiaries also are subject to governmental and regulatory examinations, information-gathering requests, investigations and proceedings (both formal and informal). Claims for significant monetary damages may be asserted in many of these type legal actions, while claims for disgorgement, restitution, penalties and/or other remedial actions or sanctions may be sought in regulatory matters. It is inherently difficult to predict the eventual outcomes of such matters given their complexity and the particular facts and circumstances at issue in each of these matters. However, on the basis of current knowledge and understanding, and advice of counsel, the Corporation does not believe that judgments, sanctions, settlements or orders, if any, that may arise from these matters (either individually or in the aggregate, after giving effect to applicable reserves and insurance coverage) will have a material adverse effect on the consolidated financial position or liquidity of the Corporation, although they could have a material effect on net income in a given period. In view of the inherent unpredictability of outcomes in litigation and governmental and regulatory matters, particularly where (i) the damages sought are indeterminate, (ii) the proceedings are in the early stages, or (iii) the matters involve novel legal theories or a large number of parties, as a matter of course, there is considerable uncertainty surrounding the timing or ultimate resolution of litigation and governmental and regulatory matters, including a possible eventual loss, fine, penalty, business or reputational impact, if any, associated with each such matter. In accordance with applicable accounting guidance, the Corporation establishes accruals for litigation and governmental and regulatory matters when those matters proceed to a stage where they present loss contingencies that are both probable and reasonably estimable. In such cases, there may be a possible exposure to loss in excess of any amounts accrued. The Corporation will continue to monitor such matters for developments that could affect the amount of the accrual, and will adjust the accrual amount as appropriate. If the loss contingency in question is not both probable and reasonably estimable, the Corporation does not establish an accrual and the matter will continue to be monitored for any developments that would make the loss contingency both probable and reasonably estimable. The Corporation believes that its accruals for legal proceedings are appropriate and, in the aggregate, are not material to the consolidated financial position of the Corporation, although future accruals could have a material effect on net income in a given period.

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10. STOCK INCENTIVE PLANS

Restricted Stock

The Corporation issues restricted stock awards, consisting of both restricted stock and restricted stock units, to key employees under its Incentive Compensation Plans (Plans). The Corporation issues time-based awards and performance-based awards under these Plans, both of which are based on a three-year vesting period. The grant date fair value of the time-based awards is equal to the price of the Corporation’s common stock on the grant date. The fair value of the performance-based awards is based on a Monte-Carlo Simulation valuation of the Corporation’s common stock as of the grant date.

The Corporation did not issue any restricted stock awards for the three months ended March 31, 2016 or 2015. For performance-based restricted stock awards granted, the recipients will earn between 0% and 175% of the number of units issued, based on the Corporation’s total stockholder return relative to a specified peer group of financial institutions over the three-year period. These market-based restricted stock units are included in the table below as if the recipients earned shares equal to 100% of the units issued. As of March 31, 2016, the Corporation had available up to 3,310,508 shares of common stock to issue under the Plans.

The unvested restricted stock awards are eligible to receive cash dividends or dividend equivalents which are ultimately used to purchase additional shares of stock and are subject to forfeiture if the requisite service period is not completed or the specified performance criteria are not met. These awards are subject to certain accelerated vesting provisions upon retirement, death, disability or in the event of a change of control as defined in the award agreements.

Share-based compensation expense related to restricted stock awards was $1,136 and $340 for the three months ended March 31, 2016 and 2015, the tax benefit of which was $398 and $119, respectively.

The following table summarizes certain information concerning restricted stock awards:

	Three Months Ended March 31,
	2016					2015
	Awards			Weighted Average Grant Price		Awards			Weighted Average Grant Price
Unvested awards outstanding at beginning of period		1,548,444		$	12.85		1,354,093		$	11.86
Net adjustment due to performance		—			—		(46,956	)		10.25
Vested		(363,799	)		12.07		(458,450	)		10.60
Forfeited		(6,368	)		12.79		(2,357	)		17.93
Dividend reinvestment		10,870			11.50		7,656			14.24
Unvested awards outstanding at end of period		1,189,147			13.08		853,986			12.63

The total fair value of awards vested was $4,424 and $5,740 for the three months ended March 31, 2016 and 2015, respectively.

As of March 31, 2016, there was $8,097 of unrecognized compensation cost related to unvested restricted stock awards, including $40 that is subject to accelerated vesting under the Plan’s immediate vesting upon retirement provision for awards granted prior to the adoption of ASC 718, Compensation – Stock Compensation. The components of the restricted stock awards as of March 31, 2016 are as follows:

	Service- Based Awards		Performance- Based Awards		Total
Unvested awards		514,702		674,445		1,189,147
Unrecognized compensation expense	$	3,178	$	4,919	$	8,097
Intrinsic value	$	6,696	$	8,775	$	15,471
Weighted average remaining life (in years)		1.69		2.37		2.08

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Stock Options

All outstanding stock options were assumed in connection with certain of the Corporation’s completed acquisitions and are fully vested. Upon consummation of those acquisitions, all outstanding stock options issued by the acquired companies were converted into equivalent Corporation stock options. The Corporation issues shares of treasury stock or authorized but unissued shares to satisfy stock options exercised. Shares issued upon the exercise of stock options were 24,806 and 60,094 for the three months ended March 31, 2016 and 2015, respectively.

The following table summarizes certain information concerning stock option awards:

	Three Months Ended March 31,
	2016					2015
	Shares			Weighted Average Exercise Price		Shares			Weighted Average Exercise Price
Options outstanding at beginning of period		435,340		$	8.86		568,834		$	8.86
Assumed from acquisitions		1,707,036			7.83		—			—
Exercised		(24,806	)		6.38		(60,094	)		5.04
Forfeited		(92,650	)		6.69		(2,182	)		4.34
Options outstanding and exercisable at end of period		2,024,920			8.12		506,558			9.33

The intrinsic value of outstanding and exercisable stock options at March 31, 2016 was $10,045.

Warrants

In conjunction with its participation in the U.S. Department of the Treasury’s (UST) Capital Purchase Program (CPP), the Corporation issued to the UST a warrant to purchase up to 1,302,083 shares of the Corporation’s common stock. Pursuant to Section 13(H) of the Warrant to Purchase Common Stock, the number of shares of common stock issuable upon exercise of the warrant was reduced in half to 651,042 shares on June 16, 2009, the date the Corporation completed a public offering. The warrant, which expires in 2019, was sold at auction by the UST and has an exercise price of $11.52 per share.

In conjunction with the Annapolis Bancorp, Inc. (ANNB) acquisition on April 6, 2013, the warrant issued by ANNB to the UST under the CPP has been converted into a warrant to purchase up to 342,564 shares of the Corporation’s common stock at an exercise price of $3.57 per share. Subsequent adjustments related to actual dividends paid by the Corporation have increased the share amount of these warrants to 380,390, with a resulting lower exercise price of $3.21 per share as of March 31, 2016. The warrant, which was recorded at its fair value on April 6, 2013, was sold at auction by the UST and expires in 2019.

11. RETIREMENT PLANS

The Corporation sponsors the Retirement Income Plan (RIP), a qualified noncontributory defined benefit pension plan that covered substantially all salaried employees hired prior to January 1, 2008. The RIP covers employees who satisfied minimum age and length of service requirements. The Corporation’s funding guideline has been to make annual contributions to the RIP each year, if necessary, such that minimum funding requirements have been met. The RIP was frozen as of December 31, 2010.

The Corporation also sponsors two supplemental non-qualified retirement plans. The ERISA Excess Retirement Plan provides retirement benefits equal to the difference, if any, between the maximum benefit allowable under the Internal Revenue Code and the amount that would be provided under the RIP, if no limits were applied. The Basic Retirement Plan (BRP) is applicable to certain officers whom the Board of Directors designates. Officers participating in the BRP receive a benefit based on a target benefit percentage based on years of service at retirement and a designated tier as determined by the Board of Directors. When a participant retires, the basic benefit under the BRP is a monthly benefit equal to the target benefit percentage times the participant’s highest average monthly cash compensation during five consecutive calendar years within the last ten calendar years of employment. This monthly benefit is reduced by the monthly benefit the participant receives from Social Security, the RIP, the ERISA Excess Retirement Plan and the annuity equivalent of the automatic contributions to the qualified 401(k) defined contribution plan and the ERISA Excess Lost Match Plan. The BRP was frozen as of December 31, 2008. The ERISA Excess Retirement Plan was frozen as of December 31, 2010.

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The net periodic benefit credit for the defined benefit plans includes the following components:

	Three Months Ended
	March 31,
	2016			2015
Service cost	$	(4	)	$	17
Interest cost		1,544			1,477
Expected return on plan assets		(2,353	)		(2,491	)
Amortization:
Unrecognized prior service cost		2			2
Unrecognized loss		608			536
Net periodic pension credit	$	(203	)	$	(459	)

The Corporation’s subsidiaries participate in a qualified 401(k) defined contribution plan under which employees may contribute a percentage of their salary. Employees are eligible to participate upon their first day of employment. Under this plan, the Corporation matches 100% of the first six percent that the employee defers. Additionally, the Corporation may provide a performance-based company contribution of up to three percent if the Corporation exceeds annual financial goals. The Corporation’s contribution expense was $2,462 and $2,167 for the three months ended March 31, 2016 and 2015, respectively.

The Corporation also sponsors an ERISA Excess Lost Match Plan for certain officers. This plan provides retirement benefits equal to the difference, if any, between the maximum benefit allowable under the Internal Revenue Code and the amount that would have been provided under the qualified 401(k) defined contribution plan, if no limits were applied.

12. COMPREHENSIVE INCOME

The components of comprehensive income, net of related tax, are as follows:

	Three Months Ended
	March 31,
	2016			2015
Net income	$	26,132		$	40,343
Other comprehensive income:
Securities available for sale:
Unrealized gains arising during the period, net of tax expense of $7,719 and $4,523		14,335			8,400
Reclassification adjustment for (gains) losses included in net income, net of tax expense of $25 and $(3)		(46	)		6
Derivative instruments:
Unrealized gains arising during the period, net of tax expense of $1,693 and $1,504		3,145			2,793
Reclassification adjustment for gains included in net income, net of tax expense of $188 and $283		(349	)		(526	)
Pension and postretirement benefit obligations:
Unrealized gains arising during the period, net of tax expense of $214 and $189		397			350
Other comprehensive income		17,482			11,023
Comprehensive income	$	43,614		$	51,366

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The amounts reclassified from AOCI related to securities available for sale are included in net securities gains on the Consolidated Statements of Comprehensive Income, while the amounts reclassified from AOCI related to derivative instruments are included in interest income on loans and leases on the Consolidated Statements of Comprehensive Income.

The tax (benefit) expense amounts reclassified from AOCI in connection with the securities available for sale and derivative instruments reclassifications are included in income taxes on the Consolidated Statements of Comprehensive Income.

The following table presents changes in AOCI, net of tax, by component:

	Unrealized Net Gains (Losses) on Securities Available for Sale			Unrealized Net Gains (Losses) on Derivative Instruments			Unrecognized Pension and Postretirement Obligations			Total
Three Months Ended March 31, 2016
Balance at beginning of period	$	(3,873	)	$	1,440		$	(48,700	)	$	(51,133	)
Other comprehensive income before reclassifications		14,335			3,145			397			17,877
Amounts reclassified from AOCI		(46	)		(349	)		—			(395	)
Net current period other comprehensive income		14,289			2,796			397			17,482
Balance at end of period	$	10,416		$	4,236		$	(48,303	)	$	(33,651	)

13. EARNINGS PER COMMON SHARE

Basic earnings per common share is calculated by dividing net income available to common stockholders by the weighted average number of shares of common stock outstanding net of unvested shares of restricted stock.

Diluted earnings per common share is calculated by dividing net income available to common stockholders by the weighted average number of shares of common stock outstanding, adjusted for the dilutive effect of potential common shares issuable for stock options, warrants and restricted shares, as calculated using the treasury stock method. Adjustments to the weighted average number of shares of common stock outstanding are made only when such adjustments dilute earnings per common share.

The following table sets forth the computation of basic and diluted earnings per common share:

	Three Months Ended
	March 31,
	2016		2015
Net income	$	26,132	$	40,343
Less: Preferred stock dividends		2,010		2,010
Net income available to common stockholders	$	24,122	$	38,333
Basic weighted average common shares outstanding		193,585,702		174,152,283
Net effect of dilutive stock options, warrants, restricted stock and convertible debt		1,292,220		1,673,693
Diluted weighted average common shares outstanding		194,877,922		175,825,976
Earnings per common share:
Basic	$	0.12	$	0.22
Diluted	$	0.12	$	0.22

For the three months ended March 31, 2016 and 2015, 15,501 and 24,272 shares of common stock, respectively, related to stock options and warrants were excluded from the computation of diluted earnings per common share because the exercise price of the shares was greater than the average market price of the common shares and, therefore, the effect would be anti-dilutive.

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14. CASH FLOW INFORMATION

Following is a summary of supplemental cash flow information:

	2016		2015
Three Months Ended March 31
Interest paid on deposits and other borrowings	$	13,794	$	11,626
Income taxes paid		—		—
Transfers of loans to other real estate owned		8,049		1,965
Financing of other real estate owned sold		62		166

15. BUSINESS SEGMENTS

The Corporation operates in four reportable segments: Community Banking, Wealth Management, Insurance and Consumer Finance.

• The Community Banking segment provides commercial and consumer banking services. Commercial banking solutions include corporate banking, small business banking, investment real estate financing, international banking, business credit, capital markets and lease financing. Consumer banking products and services include deposit products, mortgage lending, consumer lending and a complete suite of mobile and online banking services.

• The Wealth Management segment provides a broad range of personal and corporate fiduciary services including the administration of decedent and trust estates. In addition, it offers various alternative products, including securities brokerage and investment advisory services, mutual funds and annuities.

• The Insurance segment includes a full-service insurance agency offering all lines of commercial and personal insurance through major carriers. The Insurance segment also includes a reinsurer.

• The Consumer Finance segment primarily makes installment loans to individuals and purchases installment sales finance contracts from retail merchants. The Consumer Finance segment activity is funded through the sale of the Corporation’s subordinated notes at the finance company’s branch offices.

The following tables provide financial information for these segments of the Corporation. The information provided under the caption “Parent and Other” represents operations not considered to be reportable segments and/or general operating expenses of the Corporation, and includes the parent company, other non-bank subsidiaries and eliminations and adjustments which are necessary for purposes of reconciliation to the consolidated amounts.

	Community Banking		Wealth Management		Insurance		Consumer Finance		Parent and Other			Consolidated
At or for the Three Months Ended March 31, 2016
Interest income	$	143,978	$	—	$	22	$	9,785	$	1,969		$	155,754
Interest expense		12,594		—		—		941		1,865			15,400
Net interest income		131,384		—		22		8,844		104			140,354
Provision for credit losses		9,917		—		—		1,526		325			11,768
Non-interest income		31,233		8,816		4,194		716		1,085			46,044
Non-interest expense		118,048		7,089		3,301		5,204		357			133,999
Intangible amortization		2,441		65		143		—		—			2,649
Income tax expense (benefit)		10,117		605		275		1,112		(259	)		11,850
Net income (loss)		22,094		1,057		497		1,718		766			26,132
Total assets		20,151,815		20,540		21,680		188,547		(58,058	)		20,324,524
Total intangibles		1,062,079		10,383		12,779		1,809		—			1,087,050

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	Community Banking		Wealth Management		Insurance			Consumer Finance		Parent and Other			Consolidated
At or for the Three Months Ended March 31, 2015
Interest income	$	122,118	$	—	$	23		$	9,593	$	1,635		$	133,369
Interest expense		9,941		—		—			860		647			11,448
Net interest income		112,177		—		23			8,733		988			121,921
Provision for credit losses		6,327		—		—			1,574		235			8,136
Non-interest income		27,301		8,387		3,593			676		(1,775	)		38,182
Non-interest expense		77,079		6,493		4,170			4,808		(10	)		92,540
Intangible amortization		1,947		68		100			—		—			2,115
Income tax expense (benefit)		15,931		658		(226	)		1,149		(543	)		16,969
Net income (loss)		38,194		1,168		(428	)		1,878		(469	)		40,343
Total assets		16,100,851		21,125		18,464			182,662		(44,254	)		16,278,848
Total intangibles		852,764		10,652		10,021			1,809		—			875,246

16. FAIR VALUE MEASUREMENTS

The Corporation uses fair value measurements to record fair value adjustments to certain financial assets and liabilities and to determine fair value disclosures. Securities available for sale and derivatives are recorded at fair value on a recurring basis. Additionally, from time to time, the Corporation may be required to record at fair value other assets on a non-recurring basis, such as mortgage loans held for sale, certain impaired loans, OREO and certain other assets.

Fair value is defined as an exit price, representing the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Fair value measurements are not adjusted for transaction costs. Fair value is a market-based measure considered from the perspective of a market participant who holds the asset or owes the liability rather than an entity-specific measure.

In determining fair value, the Corporation uses various valuation approaches, including market, income and cost approaches. ASC 820, Fair Value Measurements and Disclosures, establishes a hierarchy for inputs used in measuring fair value that maximizes the use of observable inputs and minimizes the use of unobservable inputs by requiring that observable inputs be used when available. Observable inputs are inputs that market participants would use in pricing the asset or liability, which are developed based on market data obtained from sources independent of the Corporation. Unobservable inputs reflect the Corporation’s assumptions about the assumptions that market participants would use in pricing an asset or liability, which are developed based on the best information available in the circumstances.

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

Measurement Category	Definition
Level 1	valuation is based upon unadjusted quoted market prices for identical instruments traded in active markets.
Level 2	valuation is based upon quoted market prices for similar instruments traded in active markets, quoted market prices for identical or similar instruments traded in markets that are not active and model-based valuation techniques for which all significant assumptions are observable in the market or can be corroborated by market data.
Level 3	valuation is derived from other valuation methodologies including discounted cash flow models and similar techniques that use significant assumptions not observable in the market. These unobservable assumptions reflect estimates of assumptions that market participants would use in determining fair value.

A financial instrument’s level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement.

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Following is a description of the valuation methodologies the Corporation uses for financial instruments recorded at fair value on either a recurring or non-recurring basis:

Securities Available For Sale

Securities available for sale consists of both debt and equity securities. These securities are recorded at fair value on a recurring basis. At March 31, 2016, 99.9% of these securities used valuation methodologies involving market-based or market-derived information, collectively Level 1 and Level 2 measurements, to measure fair value. The remaining 0.1% of these securities were measured using model-based techniques, with primarily unobservable (Level 3) inputs.

The Corporation closely monitors market conditions involving assets that have become less actively traded. If the fair value measurement is based upon recent observable market activity of such assets or comparable assets (other than forced or distressed transactions) that occur in sufficient volume, and do not require significant adjustment using unobservable inputs, those assets are classified as Level 1 or Level 2; if not, they are classified as Level 3. Making this assessment requires significant judgment.

The Corporation uses prices from independent pricing services and, to a lesser extent, indicative (non-binding) quotes from independent brokers, to measure the fair value of investment securities. The Corporation validates prices received from pricing services or brokers using a variety of methods, including, but not limited to, comparison to secondary pricing services, corroboration of pricing by reference to other independent market data such as secondary broker quotes and relevant benchmark indices, and review of pricing information by Corporate personnel familiar with market liquidity and other market-related conditions.

Derivative Financial Instruments

The Corporation determines its fair value for derivatives using widely accepted valuation techniques including discounted cash flow analysis on the expected cash flows of each derivative. This analysis reflects contractual terms of the derivative, including the period to maturity and uses observable market based inputs, including interest rate curves and implied volatilities.

The Corporation incorporates credit valuation adjustments to appropriately reflect both its own non-performance risk and the respective counterparty’s non-performance risk in the fair value measurements. In adjusting the fair value of its derivative contracts for the effect of non-performance risk, the Corporation considers the impact of netting and any applicable credit enhancements, such as collateral postings, thresholds, mutual puts and guarantees.

Although the Corporation has determined that the majority of the inputs used to value its derivatives fall within Level 2 of the fair value hierarchy, the credit valuation adjustments associated with its derivatives utilize Level 3 inputs, such as estimates of current credit spreads to evaluate the likelihood of default by itself and its counterparties. However, as of March 31, 2016, the Corporation has assessed the significance of the impact of the credit valuation adjustments on the overall valuation of its derivative positions and has determined that the credit valuation adjustments are not significant to the overall valuation of its derivatives. As a result, the Corporation has determined that its derivative valuations in their entirety are classified in Level 2 of the fair value hierarchy.

Residential Mortgage Loans Held For Sale

These loans are carried at the lower of cost or fair value. Under lower of cost or fair value accounting, periodically, it may be necessary to record non-recurring fair value adjustments. Fair value, when recorded, is based on independent quoted market prices and is classified as Level 2.

Impaired Loans

The Corporation reserves for commercial loan relationships greater than or equal to $500 that the Corporation considers impaired as defined in ASC 310 at the time the Corporation identifies the loan as impaired based upon the present value of expected future cash flows available to pay the loan, or based upon the fair value of the collateral less estimated selling costs where a loan is collateral dependent. Collateral may be real estate and/or business assets including equipment, inventory and accounts receivable.

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The Corporation determines the fair value of real estate based on appraisals by licensed or certified appraisers. The value of business assets is generally based on amounts reported on the business’ financial statements. Management must rely on the financial statements prepared and certified by the borrower or its accountants in determining the value of these business assets on an ongoing basis, which may be subject to significant change over time. Based on the quality of information or statements provided, management may require the use of business asset appraisals and site-inspections to better value these assets. The Corporation may discount appraised and reported values based on management’s historical knowledge, changes in market conditions from the time of valuation or management’s knowledge of the borrower and the borrower’s business. Since not all valuation inputs are observable, the Corporation classifies these non-recurring fair value determinations as Level 2 or Level 3 based on the lowest level of input that is significant to the fair value measurement.

The Corporation reviews and evaluates impaired loans no less frequently than quarterly for additional impairment based on the same factors identified above.

Other Real Estate Owned

OREO is comprised of commercial and residential real estate properties obtained in partial or total satisfaction of loan obligations plus some bank owned real estate. OREO acquired in settlement of indebtedness is recorded at the lower of carrying amount of the loan or fair value less costs to sell. Subsequently, these assets are carried at the lower of carrying value or fair value less costs to sell. Accordingly, it may be necessary to record non-recurring fair value adjustments. Fair value is generally based upon appraisals by licensed or certified appraisers and other market information and is classified as Level 2 or Level 3.

The following table presents the balances of assets and liabilities measured at fair value on a recurring basis:

	Level 1		Level 2		Level 3		Total
March 31, 2016
Assets Measured at Fair Value
Available for sale debt securities:
U.S. Treasury	$	—	$	29,994	$	—	$	29,994
U.S. government-sponsored entities		—		401,078		—		401,078
Residential mortgage-backed securities:
Agency mortgage-backed securities		—		1,087,865		—		1,087,865
Agency collateralized mortgage obligations		—		525,630		—		525,630
Non-agency collateralized mortgage obligations		—		5		1,091		1,096
Commercial mortgage-backed securities		—		3,673		—		3,673
States of the U.S. and political subdivisions		—		39,804		—		39,804
Other debt securities		—		8,908		—		8,908
		—		2,096,957		1,091		2,098,048
Available for sale equity securities:
Financial services industry		102		636		424		1,162
Insurance services industry		133		—		—		133
		235		636		424		1,295
		235		2,097,593		1,515		2,099,343
Derivative financial instruments:
Trading		—		80,125		—		80,125
Not for trading		—		7,881		—		7,881
		—		88,006		—		88,006
	$	235	$	2,185,599	$	1,515	$	2,187,349
Liabilities Measured at Fair Value
Derivative financial instruments:
Trading		—	$	80,659		—	$	80,659
Not for trading		—		1,560		—		1,560
		—	$	82,219		—	$	82,219

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	Level 1		Level 2		Level 3		Total
December 31, 2015
Assets Measured at Fair Value
Available for sale debt securities:
U.S. Treasury	$	—	$	29,796	$	—	$	29,796
U.S. government-sponsored entities		—		367,994		—		367,994
Residential mortgage-backed securities:
Agency mortgage-backed securities		—		704,831		—		704,831
Agency collateralized mortgage obligations		—		495,830		—		495,830
Non-agency collateralized mortgage obligations		—		6		1,184		1,190
Commercial mortgage-backed securities		—		4,287		—		4,287
States of the U.S. and political subdivisions		—		11,057		—		11,057
Other debt securities		—		14,286		—		14,286
		—		1,628,087		1,184		1,629,271
Available for sale equity securities:
Financial services industry		97		632		439		1,168
Insurance services industry		128		—		—		128
		225		632		439		1,296
		225		1,628,719		1,623		1,630,567
Derivative financial instruments:
Trading		—		50,017		—		50,017
Not for trading		—		3,185		—		3,185
		—		53,202		—		53,202
	$	225	$	1,681,921	$	1,623	$	1,683,769
Liabilities Measured at Fair Value
Derivative financial instruments:
Trading		—	$	50,510		—	$	50,510
Not for trading		—		1,095		—		1,095
		—	$	51,605		—	$	51,605

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The following table presents additional information about assets measured at fair value on a recurring basis and for which the Corporation has utilized Level 3 inputs to determine fair value:

	Equity Securities			Residential Non-Agency Collateralized Mortgage Obligations			Total
Three Months Ended March 31, 2016
Balance at beginning of period	$	439		$	1,184		$	1,623
Total gains (losses) – realized/unrealized:
Included in earnings		—			—			—
Included in other comprehensive income		(15	)		(28	)		(43	)
Accretion included in earnings		—			2			2
Purchases, issuances, sales and settlements:
Purchases		—			—			—
Issuances		—			—			—
Sales/redemptions		—			—			—
Settlements		—			(67	)		(67	)
Transfers from Level 3		—			—			—
Transfers into Level 3		—			—			—
Balance at end of period	$	424		$	1,091		$	1,515
Year Ended December 31, 2015
Balance at beginning of period	$	475		$	1,420		$	1,895
Total gains (losses) – realized/unrealized:
Included in earnings		—			—			—
Included in other comprehensive income		20			(4	)		16
Accretion included in earnings		—			5			5
Purchases, issuances, sales and settlements:
Purchases		—			—			—
Issuances		—			—			—
Sales/redemptions		—			—			—
Settlements		—			(237	)		(237	)
Transfers from Level 3		(56	)		—			(56	)
Transfers into Level 3		—			—			—
Balance at end of period	$	439		$	1,184		$	1,623

The Corporation reviews fair value hierarchy classifications on a quarterly basis. Changes in the observability of the valuation attributes may result in reclassification of certain financial assets or liabilities. Such reclassifications are reported as transfers in/out of Level 3 at fair value at the beginning of the period in which the changes occur. See the Securities Available for Sale footnote in this section of this Report for information relating to determining Level 3 fair values. There were no transfers of assets or liabilities between the hierarchy levels during the first three months of 2016. During 2015, the Corporation transferred an equity security totaling $56 to non-marketable equity securities, reflected in other assets on the Consolidated Balance Sheet.

For the three months ended March 31, 2016 and 2015, there were no gains or losses included in earnings attributable to the change in unrealized gains or losses relating to assets still held as of those dates. The total (losses) gains included in earnings are in the net securities (losses) gains line item in the Consolidated Statements of Comprehensive Income.

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In accordance with GAAP, from time to time, the Corporation measures certain assets at fair value on a non-recurring basis. These adjustments to fair value usually result from the application of the lower of cost or fair value accounting or write-downs of individual assets. Valuation methodologies used to measure these fair value adjustments were previously described. For assets measured at fair value on a non-recurring basis still held at the balance sheet date, the following table provides the hierarchy level and the fair value of the related assets or portfolios:

	Level 1		Level 2		Level 3		Total
March 31, 2016
Impaired loans		—	$	957	$	7,257	$	8,214
Other real estate owned		—		1,148		868		2,016
December 31, 2015
Impaired loans		—		124		3,704		3,828
Other real estate owned		—		5,705		2,126		7,831

Substantially all of the fair value amounts in the table above were estimated at a date during the three months or twelve months ended March 31, 2016 and December 31, 2015, respectively. Consequently, the fair value information presented is not as of the period’s end.

Impaired loans measured or re-measured at fair value on a non-recurring basis during the three months ended March 31, 2016 had a carrying amount of $14,064 and an allocated allowance for credit losses of $6,012. The allocated allowance is based on fair value of $8,214 less estimated costs to sell of $162. The allowance for credit losses includes a provision applicable to the current period fair value measurements of $3,362, which was included in the provision for credit losses for the three months ended March 31, 2016.

OREO with a carrying amount of $2,616 was written down to $1,803 (fair value of $2,016 less estimated costs to sell of $213), resulting in a loss of $813, which was included in earnings for the three months ended March 31, 2016.

Fair Value of Financial Instruments

The following methods and assumptions were used to estimate the fair value of each financial instrument:

Cash and Cash Equivalents, Accrued Interest Receivable and Accrued Interest Payable. For these short-term instruments, the carrying amount is a reasonable estimate of fair value.

Securities. For both securities available for sale and securities held to maturity, fair value equals the quoted market price from an active market, if available, and is classified within Level 1. If a quoted market price is not available, fair value is estimated using quoted market prices for similar securities or pricing models, and is classified as Level 2. Where there is limited market activity or significant valuation inputs are unobservable, securities are classified within Level 3. Under current market conditions, assumptions used to determine the fair value of Level 3 securities have greater subjectivity due to the lack of observable market transactions.

Loans and Leases. The fair value of fixed rate loans and leases is estimated by discounting the future cash flows using the current rates at which similar loans and leases would be made to borrowers with similar credit ratings and for the same remaining maturities less an illiquidity discount. The fair value of variable and adjustable rate loans and leases approximates the carrying amount. Due to the significant judgment involved in evaluating credit quality, loans and leases are classified within Level 3 of the fair value hierarchy.

Derivative Assets and Liabilities. The Corporation determines its fair value for derivatives using widely accepted valuation techniques including discounted cash flow analysis on the expected cash flows of each derivative. This analysis reflects contractual terms of the derivative, including the period to maturity and uses observable market based inputs, including interest rate curves and implied volatilities.

The Corporation incorporates credit valuation adjustments to appropriately reflect both its own non-performance risk and the respective counterparty’s non-performance risk in the fair value measurements. In adjusting the fair value of its derivative contracts for the effect of non-performance risk, the Corporation considers the impact of netting and any applicable credit enhancements, such as collateral postings, thresholds, mutual puts and guarantees.

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Although the Corporation has determined that the majority of the inputs used to value its derivatives fall within Level 2 of the fair value hierarchy, the credit valuation adjustments associated with its derivatives utilize Level 3 inputs, such as estimates of current credit spreads to evaluate the likelihood of default by itself and its counterparties. However, as of March 31, 2016, the Corporation has assessed the significance of the impact of the credit valuation adjustments on the overall valuation of its derivative positions and has determined that the credit valuation adjustments are not significant to the overall valuation of its derivatives. As a result, the Corporation has determined that its derivative valuations in their entirety are classified in Level 2 of the fair value hierarchy.

Deposits. The estimated fair value of demand deposits, savings accounts and certain money market deposits is the amount payable on demand at the reporting date because of the customers’ ability to withdraw funds immediately. The fair value of fixed-maturity deposits is estimated by discounting future cash flows using rates currently offered for deposits of similar remaining maturities.

Short-Term Borrowings. The carrying amounts for short-term borrowings approximate fair value for amounts that mature in 90 days or less. The fair value of subordinated notes is estimated by discounting future cash flows using rates currently offered.

Long-Term Borrowings. The fair value of long-term borrowings is estimated by discounting future cash flows based on the market prices for the same or similar issues or on the current rates offered to the Corporation for debt of the same remaining maturities.

Loan Commitments and Standby Letters of Credit. Estimates of the fair value of these off-balance sheet items were not made because of the short-term nature of these arrangements and the credit standing of the counterparties. Also, unfunded loan commitments relate principally to variable rate commercial loans, typically are non-binding, and fees are not normally assessed on these balances.

Nature of Estimates. Many of the estimates presented herein are based upon the use of highly subjective information and assumptions and, accordingly, the results may not be precise. Management believes that fair value estimates may not be comparable to other financial institutions due to the wide range of permitted valuation techniques and numerous estimates which must be made. Further, because the disclosed fair value amounts were estimated as of the balance sheet date, the amounts actually realized or paid upon maturity or settlement of the various financial instruments could be significantly different.

The fair values of the Corporation’s financial instruments are as follows:

	Carrying				Fair Value Measurements
	Amount		Fair Value		Level 1		Level 2		Level 3
March 31, 2016
Financial Assets
Cash and cash equivalents	$	345,945	$	345,945	$	345,945	$	—	$	—
Securities available for sale		2,099,343		2,099,343		235		2,097,593		1,515
Securities held to maturity		1,776,020		1,803,453		—		1,801,022		2,431
Net loans and leases, including loans held for sale		14,025,482		13,969,315		—		—		13,969,315
Derivative assets		88,006		88,006		—		88,006		—
Accrued interest receivable		53,609		53,609		53,609		—		—
Financial Liabilities
Deposits		15,390,483		15,397,218		12,700,899		2,696,319		—
Short-term borrowings		1,563,888		1,563,947		1,563,947		—		—
Long-term borrowings		657,445		656,929		—		—		656,929
Derivative liabilities		82,219		82,219		—		82,219		—
Accrued interest payable		9,063		9,063		9,063		—		—

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	Carrying				Fair Value Measurements
	Amount		Fair Value		Level 1		Level 2		Level 3
December 31, 2015
Financial Assets
Cash and cash equivalents	$	489,119	$	489,119	$	489,119	$	—	$	—
Securities available for sale		1,630,567		1,630,567		225		1,628,719		1,623
Securities held to maturity		1,637,061		1,643,416		—		1,640,721		2,695
Net loans and leases, including loans held for sale		12,053,209		11,863,882		—		—		11,863,882
Derivative assets		53,202		53,202		—		53,202		—
Accrued interest receivable		44,920		44,920		44,920		—		—
Financial Liabilities
Deposits		12,623,463		12,610,914		10,157,997		2,452,917		—
Short-term borrowings		2,048,896		2,048,943		2,048,943		—		—
Long-term borrowings		641,480		637,935		—		—		637,935
Derivative liabilities		51,605		51,605		—		51,605		—
Accrued interest payable		7,457		7,457		7,457		—		—

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

Management’s Discussion and Analysis represents an overview of the consolidated results of operations and financial condition of the Corporation and highlights material changes to the financial condition and results of operations at and for the three-month period ended March 31, 2016. This Discussion and Analysis should be read in conjunction with the consolidated financial statements and notes thereto contained herein and the Corporation’s consolidated financial statements and notes thereto and Management’s Discussion and Analysis included in its 2015 Annual Report on Form 10-K filed with the SEC on February 26, 2016. The Corporation’s results of operations for the three months ended March 31, 2016 are not necessarily indicative of results expected for the full year ending December 31, 2016.

IMPORTANT CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING INFORMATION

The Corporation makes statements in this Report, and may from time to time make other statements, regarding its outlook for earnings, revenues, expenses, capital levels, liquidity levels, asset levels, asset quality and other matters regarding or affecting the Corporation and its future business and operations that are forward-looking statements within the meaning of the Private Securities Litigation Reform Act. Forward-looking statements are typically identified by words such as “believe,” “plan,” “expect,” “anticipate,” “see,” “look,” “intend,” “outlook,” “project,” “forecast,” “estimate,” “goal,” “will,” “should” and other similar words and expressions. Forward-looking statements are subject to numerous assumptions, risks and uncertainties, which change over time.

Forward-looking statements speak only as of the date made. The Corporation does not assume any duty and does not undertake to update forward-looking statements. Actual results or future events could differ, possibly materially, from those anticipated in forward-looking statements, as well as from historical performance.

The Corporation’s forward-looking statements are subject to the following principal risks and uncertainties:

• The Corporation’s businesses, financial results and balance sheet values are affected by business and economic conditions, including the following:

• Changes in interest rates and valuations in debt, equity and other financial markets.

• Disruptions in the liquidity and other functioning of U.S. and global financial markets.

• The impact of federal regulatory agencies that have oversight or review of the Corporation’s business and securities activities, including the bank regulatory examination and supervisory process.

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• Actions or inaction by the Board of Governors of the Federal Reserve System (FRB), UST and other government agencies, including those that impact money supply and market interest rates.

• Slowing or reversal of the rate of growth in the economy and employment levels and other economic factors that affect the Corporation’s liquidity and performance of its loan and lease portfolio, particularly in the markets in which the Corporation operates.

• Changes in customer preferences and behavior, whether due to changing business and economic conditions, legislative and regulatory initiatives, or other factors.

• Legal and regulatory developments could affect the Corporation’s ability to operate its businesses, financial condition, results of operations, competitive position, reputation, or pursuit of attractive acquisition opportunities. Reputational impacts could affect matters such as business generation and retention, liquidity, funding, and ability to attract and retain management. These developments could include:

• Changes resulting from legislative and regulatory reforms, including broad-based restructuring of financial industry regulation; changes to laws and regulations involving tax, pension, bankruptcy, consumer protection, and other industry aspects; and changes in accounting policies and principles. The Corporation will continue to be impacted by extensive reforms provided for in the Dodd-Frank Act and otherwise growing out of the recent financial crisis, the precise nature, extent and timing of which, and their impact on the Corporation, remains uncertain.

• Results of the regulatory examination and supervisory process.

• Changes to regulations governing bank capital and liquidity standards, including due to the Dodd-Frank Act, Volcker rule, Dodd-Frank Act stress testing rules (DFAST) and Basel III initiatives.

• Impact on business and operating results of any costs associated with obtaining rights in intellectual property, the adequacy of the Corporation’s intellectual property protection in general, and the Corporation’s operational or security systems or infrastructure, or those of third party vendors or other service providers, and rapid technological developments and changes.

• Business and operating results are affected by judgments and assumptions in the Corporation’s analytical and forecasting models, the Corporation’s reliance on the advice of experienced outside advisors and its ability to identify and effectively manage risks inherent in its businesses, including, where appropriate, through effective use of third-party insurance, derivatives, swaps, and capital management techniques, and to meet evolving regulatory capital standards.

• The Corporation grows its business in part by acquiring, from time to time, other financial services companies, financial services assets and related deposits. These acquisitions often present risks and uncertainties, including the possibility that the transaction cannot be consummated; regulatory issues; cost, or difficulties involved in integration and conversion of the acquired businesses after closing; inability to realize expected cost savings, efficiencies and strategic advantages; the extent of credit losses in acquired loan portfolios; the extent of deposit attrition; and the potential dilutive effect to current shareholders.

• Competition can have an impact on customer acquisition, growth and retention and on credit spreads and product pricing, which can affect market share, deposits and revenues. Industry restructuring in the current environment could also impact the Corporation’s business and financial performance through changes in counterparty creditworthiness and performance, and the competitive and regulatory landscape. The Corporation’s ability to anticipate and respond to technological changes can also impact its ability to respond to customer needs and meet competitive demands.

• Business and operating results can also be affected by widespread disasters, dislocations, terrorist activities, cyber-attacks or international hostilities through their impacts on the Corporation’s operation and reputation, the economy and financial markets.

The Corporation provides more information regarding these risks and uncertainties in its 2015 Annual Report on Form 10-K, including the section titled “Risk Factors,” and in this Report.

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CRITICAL ACCOUNTING POLICIES

A description of the Corporation’s critical accounting policies is included in the Management’s Discussion and Analysis of Financial Condition and Results of Operations section of the Corporation’s 2015 Annual Report on Form 10-K filed with the SEC on February 26, 2016 under the heading “Application of Critical Accounting Policies.” There have been no significant changes in critical accounting policies or the assumptions and judgments utilized in applying these policies since the year ended December 31, 2015.

USE OF NON-GAAP FINANCIAL MEASURES

In addition to evaluating its results of operations in accordance with GAAP, the Corporation routinely supplements its evaluation with an analysis of certain non-GAAP financial measures, such as return on average tangible common equity, return on average tangible assets and net interest income on a fully taxable equivalent (FTE) basis. The Corporation believes these non-GAAP financial measures provide information useful to investors in understanding the Corporation’s operating performance and trends, and facilitate comparisons with the performance of the Corporation’s peers. The non-GAAP financial measures used by the Corporation may differ from the non-GAAP financial measures other financial institutions use to measure their results of operations. Non-GAAP financial measures should be viewed in addition to, and not as an alternative for, the Corporation’s reported results prepared in accordance with GAAP.

FINANCIAL SUMMARY

The Corporation continued to grow organically and through the successful merger with METR, which occurred on February 13, 2016. Net income available to common stockholders for the first quarter of 2016 was $24.1 million or $0.12 per diluted share. Excluding the impact of non-operating items, primarily merger-related costs, earnings per share would have been $0.21. First quarter revenue (net interest income plus non-interest income) of $186.4 million reflects continued loan and deposit growth and strong performance from fee-based businesses.

Solid commercial loan growth was largely due to strong performance in the Pittsburgh, Baltimore and Cleveland markets. Commercial lending opportunities were strong, commensurate with the expanded geographic footprint and new opportunities provided by the aforementioned METR acquisition.

The Corporation continues to invest in new technology geared towards enhancing the client experience both online and within its retail locations. The Corporation deployed leading-edge technology in the Central Pennsylvania market to offer extended hours and improved efficiency in the consumer bank.

Additionally, the Corporation was recently named as a winner of nine 2015 Greenwich Associates Excellence in Banking Awards. In its fourth consecutive year of recognition by Greenwich Associates, the Corporation received both national and regional honors for Small Business and Middle Market Banking.

Highlights

• Non-interest income was $46.0 million for the first quarter of 2016, compared to $38.2 million for the same period of 2015.

• Net interest margin on a fully taxable equivalent basis was 3.40% for the first quarter of 2016, compared to 3.48% for the first quarter of 2015.

• The Corporation redeemed $10.0 million of a previously issued TPS at a gain of $2.4 million.

• Non-interest expense, excluding merger-related costs, increased $17.1 million from the first quarter of 2015, primarily due to the expanded operating expenses from the METR acquisition.

• The efficiency ratio at 56.4% was consistent with the first quarter of 2015.

• Total assets reached $20.3 billion at March 31, 2016.

• Average loans grew 17.4% for the first quarter 2016, compared to the first quarter of 2015, through continued organic growth and the loans added through the METR acquisition.

• Average deposits and customer repurchase agreements grew 17.2%, compared to the first quarter of 2015, through continued growth and the deposits added through the METR acquisition and BofA branch purchase.

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• The relationship of loans to deposits and customer repurchase agreements was 90.3% at March 31, 2016, improved from 94.6% at December 31, 2016.

• Asset quality remained solid with a delinquency ratio of 0.93% on the originated portfolio at March 31, 2016.

RESULTS OF OPERATIONS

Three Months Ended March 31, 2016 Compared to the Three Months Ended March 31, 2015

Net income available to common stockholders for the three months ended March 31, 2016 was $24.1 million or $0.12 per diluted common share, compared to net income available to common stockholders for the three months ended March 31, 2015 of $38.3 million or $0.22 per diluted common share. The first quarter of 2016 included merger and acquisition costs of $24.9 million relating to the METR acquisition that closed on February 13, 2016 and the Fifth Third branch purchase that closed on April 22, 2016. The decrease in net income available to common stockholders is a result of increases of $42.0 million in non-interest expense, including the merger and acquisition costs noted above, and $3.6 million in the provision for credit losses, partially offset by increases of $18.4 million in net interest income and $7.9 million in non-interest income, combined with a decrease of $5.1 million in income taxes. Quarterly average diluted common shares outstanding increased 19.1 million shares or 10.8% to 194.9 million shares for the first quarter of 2016, primarily as a result of the METR acquisition, for which the Corporation issued 34.0 million shares.

The following table presents selected financial ratios and other relevant data used to analyze the Corporation’s performance.

	Three Months Ended March 31,
	2016			2015
Return on average equity		4.51	%		8.02	%
Return on average tangible common equity		8.39	%		15.27	%
Return on average assets		0.56	%		1.01	%
Return on average tangible assets		0.63	%		1.12	%
Average equity		2,329,715			2,040,261
Average tangible common equity		1,257,238			1,064,093

Average equity for the first quarter of 2016 reflects the impact of the METR acquisition.

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The following table shows how the Corporation’s non-GAAP ratios “return on average tangible common equity” and “return on average tangible assets” for the periods indicated were derived from amounts reported in the Corporation’s financial statements (dollars in thousands):

	Three Months Ended March 31,
	2016			2015
Return on Average Tangible Common Equity:
Net income available to common stockholders (annualized)	$	97,020		$	155,461
Amortization of intangibles, net of tax (annualized)		8,404			7,021
	$	105,424		$	162,482
Average total stockholders’ equity	$	2,329,715		$	2,040,261
Less: Average preferred stockholders’ equity		(106,882	)		(106,882	)
Less: Average intangibles		(965,595	)		(869,286	)
	$	1,257,238		$	1,064,093
Return on average tangible common equity		8.39	%		15.27	%
Return on Average Tangible Assets:
Net income (annualized)	$	105,101		$	163,614
Amortization of intangibles, net of tax (annualized)		8,404			7,021
	$	113,505		$	170,635
Average total assets	$	18,916,639		$	16,147,232
Less: Average intangibles		(965,595	)		(869,286	)
	$	17,951,044		$	15,277,946
Return on average tangible assets		0.63	%		1.12	%

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The following table provides information regarding the average balances and yields earned on interest-earning assets and the average balances and rates paid on interest-bearing liabilities (dollars in thousands):

	Three Months Ended March 31,
	2016									2015
	Average Balance			Interest Income/ Expense			Yield/ Rate			Average Balance			Interest Income/ Expense			Yield/ Rate
Assets
Interest-earning assets:
Interest-bearing deposits with banks	$	123,445		$	117			0.38	%	$	75,707		$	32			0.17	%
Taxable investment securities (1)		3,254,474			16,493			2.03			2,815,252			14,214			2.02
Non-taxable investment securities (2)		271,724			3,092			4.55			168,501			2,116			5.02
Residential mortgage loans held for sale		6,128			77			5.06			4,833			63			5.22
Loans and leases (2) (3)		13,242,792			138,438			4.20			11,283,579			118,727			4.26
Total interest-earning assets (2)		16,898,563			158,217			3.76			14,347,872			135,152			3.81
Cash and due from banks		248,949									194,598
Allowance for credit losses		(142,943	)								(128,697	)
Premises and equipment		191,543									168,586
Other assets		1,720,527									1,564,873
Total Assets	$	18,916,639								$	16,147,232
Liabilities
Interest-bearing liabilities:
Deposits:
Interest-bearing demand	$	6,116,380			3,456			0.23		$	4,677,671			1,894			0.16
Savings		2,053,764			364			0.07			1,616,284			173			0.04
Certificates and other time		2,576,387			5,666			0.88			2,600,551			5,382			0.84
Customer repurchase agreements		299,038			180			0.24			830,646			456			0.22
Other short-term borrowings		1,260,466			2,181			0.69			1,053,939			1,312			0.50
Long-term borrowings		648,490			3,553			2.20			541,549			2,231			1.67
Total interest-bearing liabilities (2)		12,954,525			15,400			0.48			11,320,640			11,448			0.41
Non-interest-bearing demand		3,449,230									2,637,405
Other liabilities		183,169									148,926
Total Liabilities		16,586,924									14,106,971
Stockholders’ Equity		2,329,715									2,040,261
Total Liabilities and Stockholders’ Equity	$	18,916,639								$	16,147,232
Excess of interest-earning assets over interest-bearing liabilities	$	3,944,038								$	3,027,232
Fully tax-equivalent net interest income					142,817									123,704
Tax-equivalent adjustment					(2,463	)								(1,783	)
Net interest income				$	140,354								$	121,921
Net interest spread								3.28	%								3.40	%
Net interest margin (2)								3.40	%								3.48	%

(1) The average balances and yields earned on taxable investment securities are based on historical cost.

(2) The interest income amounts are reflected on a FTE basis, a non-GAAP measure, which adjusts for the tax benefit of income on certain tax-exempt loans and investments using the federal statutory tax rate of 35% for each period presented. The yields on earning assets and the net interest margin are presented on an FTE and annualized basis. The rates paid on interest-bearing liabilities are also presented on an annualized basis. The Corporation believes this measure to be the preferred industry measurement of net interest income and provides relevant comparison between taxable and non-taxable amounts.

(3) Average balances include non-accrual loans. Loans and leases consist of average total loans less average unearned income. The amount of loan fees included in interest income on loans is immaterial.

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Net Interest Income

Net interest income, which is the Corporation’s principal source of revenue, is the difference between interest income from earning assets (loans and leases, securities, interest-bearing deposits with banks and federal funds sold) and interest expense paid on liabilities (deposits, customer repurchase agreements and short- and long-term borrowings). For the three months ended March 31, 2016, net interest income, which comprised 75.3% of net revenue (net interest income plus non-interest income) compared to 76.2% for the same period in 2015, was affected by the general level of interest rates, changes in interest rates, the shape of the yield curve, the level of non-accrual loans and changes in the amount and mix of interest-earning assets and interest-bearing liabilities.

Net interest income, on an FTE basis, increased $19.1 million or 15.5% from $123.7 million for the first quarter of 2015 to $142.8 million for the first quarter of 2016. Average earning assets of $16.9 billion increased $2.6 billion or 17.8% and average interest-bearing liabilities of $13.0 billion increased $1.6 billion or 14.4% from 2015 due to the METR acquisition, combined with organic growth in loans and deposits. The Corporation’s net interest margin was 3.40% for the first quarter of 2016, compared to 3.48% for the same period of 2015, due to an extended low interest rate environment and competitive landscape for earning assets. Details on changes in tax-equivalent net interest income attributed to changes in interest-earning assets, interest-bearing liabilities, yields and cost of funds, and the derivation of tax-equivalent net interest income from amounts reported on the Corporation’s financial statements are set forth in the preceding table.

The following table sets forth certain information regarding changes in net interest income, on a FTE basis, attributable to changes in the volumes of interest-earning assets and interest-bearing liabilities and changes in the rates for the three months ended March 31, 2016, compared to the three months ended March 31, 2015 (in thousands):

	Volume			Rate			Net
Interest Income
Interest-bearing deposits with banks	$	29		$	56		$	85
Securities		3,688			(433	)		3,255
Residential mortgage loans held for sale		16			(2	)		14
Loans and leases		21,237			(1,526	)		19,711
		24,970			(1,905	)		23,065
Interest Expense
Deposits:
Interest-bearing demand		926			636			1,562
Savings		99			92			191
Certificates and other time		(43	)		327			284
Customer repurchase agreements		(311	)		35			(276	)
Other short-term borrowings		300			569			869
Long-term borrowings		506			816			1,322
		1,477			2,475			3,952
Net Change	$	23,493		$	(4,380	)	$	19,113

(1) The amount of change not solely due to rate or volume changes was allocated between the change due to rate and the change due to volume based on the net size of the rate and volume changes.

(2) Interest income amounts are reflected on an FTE basis which adjusts for the tax benefit of income on certain tax-exempt loans and investments using the federal statutory tax rate of 35% for each period presented. The Corporation believes this measure to be the preferred industry measurement of net interest income and provides relevant comparison between taxable and non-taxable amounts.

Interest income, on an FTE basis, of $158.2 million for the first quarter of 2016, increased $23.1 million or 17.1% from the same quarter of 2015, primarily due to increased earning assets, partially offset by lower yields. During the first quarter of 2016 and 2015, the Corporation recognized a benefit of $0.5 million and $1.8 million, respectively, in accretable yield adjustments on acquired loans. The increase in earning assets was primarily driven by a $2.0 billion or 17.4% increase in average loans and leases, including $1.0 billion or 8.8% of organic growth, which reflects the benefit of the Corporation’s expanded banking footprint and successful sales management. Additionally, average loans added in the METR acquisition were $1.0 billion. The yield on earning assets decreased 5 basis points from the first quarter of 2015 to 3.76% for the first quarter of 2016, reflecting the decreases in market interest rates and competitive pressures

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Interest expense of $15.4 million for the first quarter of 2016 increased $4.0 million or 34.5% from the same quarter of 2015 due to growth in interest-bearing liabilities. The growth in average interest-bearing liabilities was primarily attributable to growth in average deposits and long-term borrowings, which was offset by a decrease in short-term borrowings. Average deposits increased $2.7 billion or 23.1%, including $1.3 billion or 11.2% of organic growth, which reflects the benefit of the Corporation’s expanded banking footprint. Additionally, average deposits added in the METR acquisition and the BofA branch purchase were $1.2 billion and $145.5 million, respectively. Long-term borrowings increased $106.9 million or 19.7 %, primarily due to $100.0 million in subordinated notes issued by the Corporation in its October 2015 debt offering. Short-term borrowings decreased $325.1 million or 17.3%, primarily as a result of a planned migration of customer repurchase agreements to a new premium sweep product included in interest-bearing demand deposits that was launched during the second quarter of 2015. The rate paid on interest-bearing liabilities increased 7 basis points to 0.48% for the first quarter of 2016, primarily due to the debt offering as discussed above. Given the absolute low level of interest rates and the current rates paid on the various deposit products, the Corporation believes there is limited opportunity for further reductions in the overall rate paid on interest-bearing liabilities.

Provision for Credit Losses

The provision for credit losses is determined based on management’s estimates of the appropriate level of allowance for credit losses needed to absorb probable losses inherent in the existing loan and lease portfolio, after giving consideration to charge-offs and recoveries for the period.

The provision for credit losses of $11.8 million during the first quarter of 2016 increased $3.6 million from the same period of 2015, primarily due to an increase of $3.8 million in the provision for the originated portfolio supporting loan growth and some credit migration within the originated commercial portfolio, primarily related to the energy and metals portfolios, which comprise a small portion of the Corporation’s overall portfolio at 1.3% and 2.3%, respectively. The Corporation actively monitors these exposures based upon existing economic conditions on a daily basis to manage this risk appropriately. This was partially offset by a decrease of $0.2 million in the provision for the acquired portfolio, which resulted from lower acquired net charge-offs and generally more favorable cash flow re-estimations during the quarter. During the first quarter of 2016, net charge-offs were $6.0 million, or 0.18% (annualized) of average loans and leases, compared to $5.6 million, or 0.20% (annualized) of average loans and leases, for the same period of 2015. The ratio of the allowance for credit losses to total loans and leases equaled 1.04% and 1.13% at March 31, 2016 and 2015, respectively, reflecting the addition of loans acquired in the METR acquisition during 2016, which did not carry a corresponding allowance for credit losses in accordance with business acquisition accounting rules. For additional information relating to the allowance and provision for credit losses, refer to the Allowance for Credit Losses section of this Management’s Discussion and Analysis.

Non-Interest Income

Total non-interest income increased $7.9 million, to $46.0 million for the first quarter of 2016, or 20.6% from the same period of 2015. The variances in significant individual non-interest income items are further explained in the following paragraphs, with an overriding theme of the income increases primarily related to the expanded operations from acquisitions.

Service charges on loans and deposits of $21.3 million for the first quarter of 2016 increased $5.5 million or 34.5% from the same period of 2015. The impact of organic growth and the expanded customer base due to acquisitions resulted in increases of $4.1 million or 47.8% in deposit-related service charges and $1.4 million or 19.1% in other service charges and fees over this same period.

Insurance commissions and fees of $4.9 million for the first quarter of 2016 increased $0.6 million or 12.6% from the same period of 2015, primarily due to revenues from the businesses acquired in June 2015.

Securities commissions of $3.4 million for the first quarter of 2016 increased $0.3 million or 10.4% from the first quarter of 2015, primarily due to positive results from initiatives generating new customer relationships combined with increased volume, geographic expansion and improved market conditions compared to the same period of 2015.

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Mortgage banking revenue of $1.6 million for the first quarter of 2016 decreased $0.2 million or 11.3% from $1.8 million for the same period of 2015. During the first quarter of 2016, the Corporation sold $92.3 million of residential mortgage loans, compared to $72.6 million for the same period of 2015.

Other non-interest income was $7.5 million and $6.1 million for the first quarter of 2016 and 2015, respectively. During the first quarter of 2016, the Corporation recognized a gain of $2.4 million relating to the $10.0 million redemption of TPS, as previously discussed. Additionally, during the first quarter of 2016, the Corporation recorded $0.4 million more in fees earned through its commercial loan interest rate swap program, reflecting strong commercial loan growth. Also, the Corporation recorded $1.3 million less in dividends on non-marketable equity securities, primarily resulting from a special dividend paid by the FHLB totaling $1.0 million during the first quarter of 2015, combined with a $0.5 million reduction in dividends paid by the FRB resulting from recent legislation.

Non-Interest Expense

Total non-interest expense of $136.6 million for the first quarter of 2016 increased $42.0 million or 44.4% from the same period of 2015. The variances in the individual non-interest expense items are further explained in the following paragraphs, with an overriding theme of the expense increases primarily related to the expanded operations from acquisitions.

Salaries and employee benefits of $56.4 million for the first quarter of 2016 increased $7.2 million or 14.5% from the same period of 2015. This increase primarily relates to employees added in conjunction with the acquisitions and heightened regulatory compliance costs, combined with new hires, merit increases and higher medical insurance costs in 2016.

Occupancy and equipment expense of $17.8 million for the first quarter of 2016 increased $1.2 million or 7.2% from the same period of 2015, primarily resulting from the acquisitions combined with additional costs associated with the Corporation’s continued focus on new technology, both in meeting customer needs via the utilization of electronic delivery channels, such as online and mobile banking, and in meeting various regulatory requirements. These increases were partially offset by lower costs attributable to a mild winter season in the first quarter of 2016, compared to the same period in 2015.

Amortization of intangibles expense of $2.6 million for the first quarter of 2016 increased $0.5 million or 25.2% from the first quarter of 2015, due to the additional core deposit intangible added as a result of the METR acquisition.

Outside services expense of $9.3 million for the first quarter of 2016 increased $0.5 million or 6.0% from the same period of 2015, primarily due to additional costs associated with the METR acquisition.

During the first quarter of 2016, the Corporation recorded $24.9 million in merger and acquisition costs associated with the METR acquisition and Fifth Third branch acquisition. The Corporation did not record any merger expenses during the first quarter of 2015.

Other non-interest expense was $21.5 million and $14.2 million for the first quarter of 2016 and 2015, respectively. During the first quarter of 2016, the Corporation incurred a $2.6 million impairment charge on acquired other assets relating to low income housing projects. Additionally, for the first quarter of 2016, supplies expense increased $1.1 million, marketing expenses increased $0.7 million, miscellaneous losses increased $0.7 million, loan-related expenses increased $0.6 million, OREO expenses increased $0.5 million, state taxes increased $0.3 million, business development expenses increased $0.3 million and postage expense increased $0.3 million, all primarily due to acquisitions and volume increases related to organic growth.

Income Taxes

The Corporation’s income tax expense of $11.9 million for the first quarter of 2016 decreased $5.1 million or 30.2% from the same period of 2015. The effective tax rate of 31.2% for the first quarter of 2016 increased slightly from 29.6% for the same period of 2015, due to higher levels of pre-tax income which is subject to the marginal tax rate of 35%. Both periods’ tax rates are lower than the 35% federal statutory tax rate due to the tax benefits primarily resulting from tax-exempt income on investments and loans, tax credits and income from BOLI.

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LIQUIDITY

The Corporation’s goal in liquidity management is to satisfy the cash flow requirements of customers and the operating cash needs of the Corporation with cost-effective funding. The Board of Directors of the Corporation has established an Asset/Liability Management Policy in order to guide management in achieving and maintaining earnings performance consistent with long-term goals, while maintaining acceptable levels of interest rate risk, a “well-capitalized” balance sheet and adequate levels of liquidity. The Board of Directors of the Corporation has also established a Contingency Funding Policy to guide management in addressing liquidity crisis conditions. These policies designate the Corporate Asset/Liability Committee (ALCO) as the body responsible for meeting these objectives. The ALCO, which is comprised of members of executive management, reviews liquidity on a periodic basis and approves significant changes in strategies that affect balance sheet or cash flow positions. Liquidity is centrally managed on a daily basis by the Corporation’s Treasury Department.

FNBPA generates liquidity from its normal business operations. Liquidity sources from assets include payments from loans and investments, as well as the ability to securitize, pledge or sell loans, investment securities and other assets. Liquidity sources from liabilities are generated primarily through the banking offices of FNBPA in the form of deposits and customer repurchase agreements. The Corporation also has access to reliable and cost-effective wholesale sources of liquidity. Short- and long-term funds can be acquired to help fund normal business operations, as well as to serve as contingency funding in the event that the Corporation would be faced with a liquidity crisis.

The principal sources of the parent company’s liquidity are its strong existing cash resources plus dividends it receives from its subsidiaries. These dividends may be impacted by the parent’s or its subsidiaries’ capital needs, statutory laws and regulations, corporate policies, contractual restrictions, profitability and other factors. Cash on hand at the parent has been favorably impacted by management strategies over the last few years. These include strong earnings, increasing earnings retention rate and capital actions. On October 2, 2015, the Corporation issued $100.0 million aggregate principal amount of 4.875% subordinated notes due in 2025. The net proceeds of the debt offering after deducting underwriting discounts and commissions and estimated offering expenses were $98.4 million. The parent’s cash position decreased from $226.9 million at December 31, 2015 to $151.0 million at March 31, 2016, as the Corporation utilized a portion of the net proceeds from the sale of the subordinated notes to provide $70.0 million in capital to support the growth of FNBPA.

Management believes cash levels for the Corporation are appropriate given the current environment. Two metrics that are used to gauge the adequacy of the parent company’s cash position are the Liquidity Coverage Ratio (LCR) and Months of Cash on Hand (MCH). The LCR is defined as the sum of cash on hand plus projected cash inflows over the next 12 months divided by projected cash outflows over the next 12 months. The LCR was 2.2 times at March 31, 2016 and 1.8 times at December 31, 2015. The internal limit for LCR is for the ratio to be greater than 1.0 time. The MCH is defined as the number of months of corporate expenses that can be covered by the cash on hand. The MCH was 14.0 months at both March 31, 2016 and December 31, 2015. The internal limit for MCH is for the ratio to be greater than 12 months. In addition, the Corporation issues subordinated notes on a regular basis. Subordinated notes increased $0.7 million or 0.3% during the first quarter of 2016 to $209.5 million at March 31, 2016.

The liquidity position of the Corporation continues to be strong as evidenced by its ability to generate growth in relationship-based accounts. Total average deposits and customer repurchase agreements totaled $14.5 billion in the first quarter of 2016 and increased $1.4 billion, or 10.9%, including average organic growth of $201.0 million or 6.2% annualized for the period. Organic results are adjusted by the impact from the acquisition of the METR acquisition on February 13, 2016. Organic growth in low-cost transaction deposits and customer repurchase agreements for the first quarter of 2016 was $206.6 million, or 7.9% annualized, led by strong organic growth in average non-interest-bearing deposits of $212.3 million, or 28.2% annualized. The strong growth in low-cost transaction deposits and customer repurchase agreements was slightly offset by a decline in average time deposits of $5.6 million or 0.9% annualized for the period on an organic basis. The rate of decline has slowed compared to prior periods due to the Corporation’s pricing actions designed to extend time deposit maturities.

FNBPA had unused wholesale credit availability of $6.6 billion or 32.7% of bank assets at March 31, 2016 and $5.2 billion or 30.0% of bank assets at December 31, 2015. These sources include the availability to borrow from the FHLB, the FRB, correspondent bank lines and access to brokered certificates of deposit. In addition to credit availability, FNBPA also possesses salable unpledged government and agency securities which could be utilized to meet funding needs. These securities totaled $1.0 billion, or 5.0% of total assets and $1.3 billion, or 7.3% of total assets as of March 31, 2016 and December 31, 2015, respectively. The ALCO Policy minimum level is 3.0%.

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Another metric for measuring liquidity risk is the liquidity gap analysis. The following liquidity gap analysis (in thousands) for the Corporation as of March 31, 2016 compares the difference between cash flows from existing assets and liabilities over future time intervals. Management seeks to limit the size of the liquidity gaps so that sources and uses of funds are reasonably matched in the normal course of business. A reasonably matched position lays a better foundation for dealing with additional funding needs during a potential liquidity crisis. The twelve-month cumulative gap to total assets was 0.1% and (2.6)% as of March 31, 2016 and December 31, 2015, respectively.

	Within 1 Month			2-3 Months			4-6 Months			7-12 Months			Total 1 Year
Assets
Loans	$	323,876		$	622,565		$	844,217		$	1,640,693		$	3,431,351
Investments		183,606			138,084			208,649			450,298			980,637
		507,482			760,649			1,052,866			2,090,991			4,411,988
Liabilities
Non-maturity deposits		122,616			245,232			367,850			735,701			1,471,399
Time deposits		164,192			310,156			413,455			557,767			1,445,570
Borrowings		1,103,672			71,685			109,558			182,349			1,467,264
		1,390,480			627,073			890,863			1,475,817			4,384,233
Period Gap (Assets—Liabilities)	$	(882,998	)	$	133,576		$	162,003		$	615,174		$	27,755
Cumulative Gap	$	(882,998	)	$	(749,422	)	$	(587,419	)	$	27,755
Cumulative Gap to Total Assets		(4.3	)%		(3.7	)%		(2.9	)%		0.1	%

In addition, the ALCO regularly monitors various liquidity ratios and stress scenarios of the Corporation’s liquidity position. The stress scenarios forecast that adequate funding will be available even under severe conditions. Management believes the Corporation has sufficient liquidity available to meet its normal operating and contingency funding cash needs.

MARKET RISK

Market risk refers to potential losses arising from changes in interest rates, foreign exchange rates, equity prices and commodity prices. The Corporation is primarily exposed to interest rate risk inherent in its lending and deposit-taking activities as a financial intermediary. To succeed in this capacity, the Corporation offers an extensive variety of financial products to meet the diverse needs of its customers. These products sometimes contribute to interest rate risk for the Corporation when product groups do not complement one another. For example, depositors may want short-term deposits while borrowers desire long-term loans.

Changes in market interest rates may result in changes in the fair value of the Corporation’s financial instruments, cash flows and net interest income. The ALCO is responsible for market risk management which involves devising policy guidelines, risk measures and limits, and managing the amount of interest rate risk and its effect on net interest income and capital. The Corporation uses derivative financial instruments for interest rate risk management purposes and not for trading or speculative purposes.

Interest rate risk is comprised of repricing risk, basis risk, yield curve risk and options risk. Repricing risk arises from differences in the cash flow or repricing between asset and liability portfolios. Basis risk arises when asset and liability portfolios are related to different market rate indexes, which do not always change by the same amount. Yield curve risk arises when asset and liability portfolios are related to different maturities on a given yield curve; when the yield curve changes shape, the risk position is altered. Options risk arises from “embedded options” within asset and liability products as certain borrowers have the option to prepay their loans when rates fall, while certain depositors can redeem their certificates of deposit early when rates rise.

The Corporation uses an asset/liability model to measure its interest rate risk. Interest rate risk measures utilized by the Corporation include earnings simulation, economic value of equity (EVE) and gap analysis.

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Gap analysis and EVE are static measures that do not incorporate assumptions regarding future business. Gap analysis, while a helpful diagnostic tool, displays cash flows for only a single rate environment. EVE’s long-term horizon helps identify changes in optionality and longer-term positions. However, EVE’s liquidation perspective does not translate into the earnings-based measures that are the focus of managing and valuing a going concern. Net interest income simulations explicitly measure the exposure to earnings from changes in market rates of interest. In these simulations, the Corporation’s current financial position is combined with assumptions regarding future business to calculate net interest income under various hypothetical rate scenarios. The ALCO reviews earnings simulations over multiple years under various interest rate scenarios on a periodic basis. Reviewing these various measures provides the Corporation with a comprehensive view of its interest rate risk profile.

The following repricing gap analysis (in thousands) as of March 31, 2016 compares the difference between the amount of interest-earning assets and interest-bearing liabilities subject to repricing over a period of time. Management utilizes the repricing gap analysis as a diagnostic tool in managing net interest income and EVE risk measures.

	Within 1 Month			2-3 Months			4-6 Months			7-12 Months			Total 1 Year
Assets
Loans	$	5,801,930		$	684,129		$	641,800		$	1,223,934		$	8,351,793
Investments		192,451			153,904			210,506			479,121			1,035,982
		5,994,381			838,033			852,306			1,703,055			9,387,775
Liabilities
Non-maturity deposits		4,402,059			—			—			—			4,402,059
Time deposits		262,009			310,244			411,846			553,923			1,538,022
Borrowings		1,456,849			81,358			91,815			146,863			1,776,885
		6,120,917			391,602			503,661			700,786			7,716,966
Off-balance sheet		(200,000	)		50,000			—			—			(150,000	)
Period Gap (assets – liabilities + off-balance sheet)	$	(326,536	)	$	496,431		$	348,645		$	1,002,269		$	1,520,809
Cumulative Gap	$	(326,536	)	$	169,895		$	518,540		$	1,520,809
Cumulative Gap to Assets		(1.8	)%		0.9	%		2.9	%		8.4	%

The twelve-month cumulative repricing gap to total assets was 8.4% and 5.6% as of March 31, 2016 and December 31, 2015, respectively. The positive cumulative gap positions indicate that the Corporation has a greater amount of repricing earning assets than repricing interest-bearing liabilities over the subsequent twelve months. If interest rates increase then net interest income will increase and, conversely, if interest rates decrease then net interest income will decrease.

The allocation of non-maturity deposits and customer repurchase agreements to the one-month maturity category above is based on the estimated sensitivity of each product to changes in market rates. For example, if a product’s rate is estimated to increase by 50% as much as the market rates, then 50% of the account balance was placed in this category.

The following net interest income metrics were calculated using rate shocks which move market rates in an immediate and parallel fashion. The variance percentages represent the change between the net interest income or EVE calculated under the particular rate scenario versus the net interest income or EVE that was calculated assuming market rates as of March 31, 2016.

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The following table presents an analysis of the potential sensitivity of the Corporation’s net interest income and EVE to changes in interest rates:

	March 31, 2016			December 31, 2015			ALCO Limits
Net interest income change (12 months):
+ 300 basis points		7.2	%		5.7	%		n/a
+ 200 basis points		4.9	%		4.0	%		(5.0	)%
+ 100 basis points		2.3	%		2.0	%		(5.0	)%
- 100 basis points		(2.9	)%		(3.0	)%		(5.0	)%
Economic value of equity:
+ 300 basis points		3.4	%		1.6	%		(25.0	)%
+ 200 basis points		3.1	%		1.8	%		(15.0	)%
+ 100 basis points		2.1	%		1.3	%		(10.0	)%
- 100 basis points		(6.7	)%		(5.3	)%		(10.0	)%

The Corporation also models rate scenarios which move all rates gradually over twelve months (Rate Ramps) and also scenarios that gradually change the shape of the yield curve. A +300 basis point Rate Ramp increases net interest income (12 months) by 4.7% and 3.6% at March 31, 2016 and December 31, 2015, respectively.

The Corporation’s strategy is generally to manage to a neutral interest rate risk position. However, given the current interest rate environment, the interest rate risk position has been managed to a modestly asset-sensitive position. Currently, rising rates are expected to have a modest, positive effect on net interest income versus net interest income if rates remained unchanged.

The ALCO utilizes several tactics to manage the Corporation’s interest rate risk position. As mentioned earlier, the growth in transaction deposits provides funding that is less interest rate-sensitive than time deposits and wholesale borrowings. On the lending side, the Corporation regularly sells long-term fixed-rate residential mortgages to the secondary market and has been successful in the origination of consumer and commercial loans with short-term repricing characteristics. Total variable and adjustable-rate loans were 61.4% and 58.3% of total loans as of March 31, 2016 and December 31, 2015, respectively. The investment portfolio is used, in part, to manage the Corporation’s interest rate risk position. The Corporation has managed the duration of its investment portfolio over the last year to be relatively short and relatively unchanged from the prior year end, resulting in a portfolio duration of 3.4 and 3.5 at March 31, 2016 and December 31, 2015, respectively. Finally, the Corporation has made use of interest rate swaps to commercial borrowers (commercial swaps) to manage its interest rate risk position as the commercial swaps effectively increase adjustable-rate loans. As of March 31, 2016, the commercial swaps totaled $1.4 billion of notional principal, with $166.0 million in notional swap principal originated during the first quarter of 2016. The success of the aforementioned tactics has resulted in an asset-sensitive position. For additional information regarding interest rate swaps, see the Derivative Instruments footnote to the financial statements in this Report.

The Corporation desired to remain modestly asset-sensitive during the first quarter of 2016. A number of management actions and market occurrences resulted in a slight increase in the asset sensitivity of the Corporation’s interest rate risk position. The primary factors included balance sheet growth in less rate-sensitive deposits and an increase in the amount of adjustable loans repricing in 12 months or less, which was aided by commercial swaps. Organic deposit balance sheet growth and the METR acquisition provided less rate-sensitive deposits. In addition, the amount of outstanding variable and adjustable loans repricing in 12 months or less increased by $1.1 billion for the quarter, and totaled $5.8 billion at March 31, 2016. These increases in the net asset-sensitivity position were in addition to a decrease in the use of overnight and short-term borrowings compared to the prior year end. Net overnight and short-term borrowings decreased by $233.1 million for the first quarter of 2016. This was primarily due to an inflow of government deposits as the Pennsylvania legislature budget impasse was settled at the beginning of the quarter.

The Corporation recognizes that all asset/liability models have some inherent shortcomings. Asset/liability models require certain assumptions to be made, such as prepayment rates on interest-earning assets and repricing impact on non-maturity deposits, which may differ from actual experience. These business assumptions are based upon the Corporation’s experience, business plans, economic and market trends and available industry data. While management believes that its methodology for developing such assumptions to be reasonable, there can be no assurance that modeled results will be achieved. Furthermore, the metrics are based upon the balance sheet structure as of the valuation date and do not reflect the planned growth or management actions that could be taken.

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RISK MANAGEMENT

The Corporation’s Board of Directors recognizes that, as a financial institution, the Corporation takes on a certain amount of risk in every business decision, transaction and activity. The Corporation’s Board of Directors and senior management have identified seven major categories of risk: credit risk, market risk, liquidity risk, reputational risk, operational risk, regulatory compliance risk and strategic risk. In its oversight role of the Corporation’s risk management function, the Board of Directors is mindful that risk management is not about eliminating risk, but rather is about identifying, understanding and managing risks so as to optimize total shareholder value, while balancing prudent business and safety and soundness considerations.

The Corporation supports its risk management process through a governance structure involving its Board of Directors and senior management. The Risk Committee of the Corporation’s Board of Directors helps ensure that business decisions in the organization are executed within its desired risk tolerances. The Risk Committee has the following oversight responsibilities:

• identification, measurement, assessment and monitoring of enterprise-wide risk across the Corporation and its subsidiaries;

• development of appropriate and meaningful risk metrics to use in connection with the oversight of the Corporation’s businesses and strategies;

• review and assessment of the Corporation’s policies and practices to manage the Corporation’s credit, market, liquidity, legal, regulatory and operating risk (including technology, operational, compliance and fiduciary risks); and

• identification and implementation of risk management best practices.

The Risk Committee serves as the primary point of contact between the Corporation’s Board of Directors and the Risk Management Council, which is the senior management level committee responsible for the Corporation’s risk management.

As noted above, the Corporation has a Risk Management Council comprised of senior management. The purpose of this committee is to provide regular oversight of specific areas of risk with respect to the level of risk and risk management structure. Management has also established an Operational Risk Committee that is responsible for identifying, evaluating and monitoring operational risks across the Corporation. The Operational Risk Committee is also responsible for evaluating and approving appropriate remediation efforts to address identified operational risks. The Operational Risk Committee provides periodic reports concerning operational risks to the Risk Management Council. The Risk Management Council reports on a regular basis to the Corporation’s Risk Committee regarding the enterprise-wide risk profile of the Corporation and other significant risk management issues. The Corporation’s Chief Risk Officer is responsible for the design and implementation of the Corporation’s enterprise-wide risk management strategy and framework and ensures the coordinated and consistent implementation of risk management initiatives and strategies on a day-to-day basis. The Corporation’s Compliance Department, which reports to the Chief Risk Officer, is responsible for developing policies and procedures and monitoring compliance with applicable laws and regulations. Further, the Corporation’s audit function performs an independent assessment of the Corporation’s internal controls environment and plays an integral role in testing the operation of the internal controls systems and reporting findings to management and the Corporation’s Audit Committee. Both the Corporation’s Risk Committee and Audit Committee regularly report on risk-related matters to the Corporation’s Board of Directors. In addition, both the Corporation’s Risk Committee and the Risk Management Council regularly assess the Corporation’s enterprise-wide risk profile and provide guidance on actions needed to address key and emerging risk issues.

The Board of Directors believes that the Corporation’s enterprise-wide risk management process is effective since it includes the following material components:

• enables the Board of Directors to assess the quality of the information it receives;

• enables the Board of Directors to understand the businesses, investments and financial, accounting, legal, regulatory and strategic considerations of the Corporation and its subsidiaries, and the risks that they face;

• enables the Board of Directors to oversee and assess how senior management evaluates risk; and

• enables the Board of Directors to assess appropriately the quality of the Corporation’s enterprise-wide risk management process.

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DEPOSITS AND CUSTOMER REPURCHASE AGREEMENTS

Following is a summary of deposits and customer repurchase agreements (in thousands):

	March 31, 2016		December 31, 2015
Non-interest-bearing demand	$	3,896,782	$	3,059,949
Interest-bearing demand		6,512,461		5,311,589
Savings		2,291,656		1,786,459
Certificates of deposit and other time deposits		2,689,584		2,465,466
Total deposits		15,390,483		12,623,463
Customer repurchase agreements		297,562		266,732
Total deposits and customer repurchase agreements	$	15,688,045	$	12,890,195

Total deposits and customer repurchase agreements increased by $2.8 billion, or 21.7%, to $15.7 billion at March 31, 2016, compared to December 31, 2015, primarily as a result of the METR acquisition, combined with organic growth in relationship-based transaction deposits, which are comprised of demand (non-interest-bearing and interest-bearing) and savings accounts. Generating growth in relationship-based transaction deposits remains a key focus of the Corporation.

NON-PERFORMING ASSETS

Non-performing loans and OREO increased $24.2 million, from $110.8 million at December 31, 2015 to $135.0 million at March 31, 2016. This reflects increases of $13.1 million and $11.6 million in non-accrual loans and OREO, respectively, partially offset by a decrease of $0.6 million in TDRs. The increase in non-accrual loans is primarily attributable to a single credit to a borrower that supports the energy sector which continues to experience softness in the face of commodity pricing pressures. The increase in OREO was the result of properties acquired from METR, including banking facilities that are no longer in use. The decrease in TDRs was attributed to consumer borrowers that met the modified terms of their agreements for the required period of time and were returned to performing status.

Following is a summary of total non-performing loans, by class (in thousands):

	March 31, 2016		December 31, 2015
Commercial real estate	$	26,286	$	26,087
Commercial and industrial		25,142		14,846
Commercial leases		894		659
Total commercial loans and leases		52,322		41,592
Direct installment		14,141		13,791
Residential mortgages		13,350		12,763
Indirect installment		1,504		1,514
Consumer lines of credit		3,172		2,265
	$	84,489	$	71,925

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Following is a summary of performing, non-performing and non-accrual TDRs, by class (in thousands):

	Performing		Non- Performing		Non- Accrual		Total
March 31, 2016
Commercial real estate	$	—	$	1,463	$	5,834	$	7,297
Commercial and industrial		—		363		3,983		4,346
Total commercial loans and leases		—		1,826		9,817		11,643
Direct installment		9,003		8,495		1,457		18,955
Residential mortgages		5,254		9,904		575		15,733
Indirect installment		—		157		14		171
Consumer lines of credit		2,251		1,071		90		3,412
	$	16,508	$	21,453	$	11,953	$	49,914
December 31, 2015
Commercial real estate	$	—	$	1,653	$	6,051	$	7,704
Commercial and industrial		—		361		813		1,174
Total commercial loans and leases		—		2,014		6,864		8,878
Direct installment		7,908		8,985		1,137		18,030
Residential mortgages		5,184		9,881		190		15,255
Indirect installment		—		153		24		177
Consumer lines of credit		2,073		995		92		3,160
	$	15,165	$	22,028	$	8,307	$	45,500

ALLOWANCE FOR CREDIT LOSSES

The allowance for credit losses of $147.8 million at March 31, 2016 increased $5.8 million or 4.1% from December 31, 2015, primarily in support of growth in originated loans and leases and some credit migration in the commercial portfolio. The provision for credit losses during the three months ended March 31, 2016 was $11.8 million, covering net charge-offs of $6.0 million, additional specific reserves of $3.4 million, with the remainder primarily supporting strong organic loan and lease growth. The allowance for credit losses as a percentage of non-performing loans for the Corporation’s total portfolio decreased from 197.44% as of December 31, 2015 to 174.93% as of March 31, 2016.

Following is a summary of supplemental statistical ratios pertaining to the Corporation’s originated loans and leases portfolio. The originated loans and leases portfolio excludes loans acquired at fair value and accounted for in accordance with ASC 805.

	At or For the Three Months Ended
	March 31, 2016			December 31, 2015			March 31, 2015
Non-performing loans/total originated loans and leases		0.74	%		0.64	%		0.68	%
Non-performing loans + OREO/total originated loans and leases + OREO		1.18	%		0.99	%		1.08	%
Allowance for credit losses (originated loans)/total originated loans and leases		1.26	%		1.23	%		1.22	%
Net charge-offs on originated loans and leases (annualized)/total average originated loans and leases		0.21	%		0.25	%		0.24	%

CAPITAL RESOURCES AND REGULATORY MATTERS

The access to, and cost of, funding for new business initiatives, including acquisitions, the ability to engage in expanded business activities, the ability to pay dividends and the level and nature of regulatory oversight depend, in part, on the Corporation’s capital position.

The assessment of capital adequacy depends on a number of factors such as expected organic growth in the balance sheet, asset quality, liquidity, earnings performance, changing competitive conditions and economic forces. The Corporation seeks to maintain a strong capital base to support its growth and expansion activities, to provide stability to current operations and to promote public confidence.

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The Corporation has an effective shelf registration statement filed with the SEC. Pursuant to this registration statement, the Corporation may, from time to time, issue and sell in one or more offerings any combination of common stock, preferred stock, debt securities, depositary shares, warrants, stock purchase contracts or units. On October 2, 2015, the Corporation completed its offering of $100 million aggregate principal amount of 4.875% subordinated notes due in 2025. The subordinated notes will be treated as tier 2 capital for regulatory capital purposes. The net proceeds of the debt offering after deducting underwriting discounts and commissions and offering expenses were $98.4 million. The Corporation used the net proceeds from the sale of the subordinated notes for general corporate purposes, including providing capital to support the growth of FNBPA and its business

Capital management is a continuous process with capital plans and stress testing for the Corporation and FNBPA updated annually. These capital plans include assessing the adequacy of expected capital levels assuming various scenarios by projecting capital needs for a forecast period of 2-3 years beyond the current year. From time to time, the Corporation issues shares initially acquired by the Corporation as treasury stock under its various benefit plans. The Corporation may continue to grow through acquisitions, which can potentially impact its capital position. The Corporation may issue additional preferred or common stock in order to maintain its well-capitalized status.

The Corporation and FNBPA are subject to various regulatory capital requirements administered by the federal banking agencies (see discussion under “Enhanced Regulatory Capital Standards”). Quantitative measures established by regulators to ensure capital adequacy require the Corporation and FNBPA to maintain minimum amounts and ratios of total, tier 1 and common equity tier 1 capital (as defined in the regulations) to risk-weighted assets (as defined) and of leverage ratio (as defined). 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 the Corporation’s consolidated financial statements and future merger and acquisition activity. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, the Corporation and FNBPA must meet specific capital guidelines that involve quantitative measures of assets, liabilities and certain off-balance sheet items as calculated under regulatory accounting practices. The Corporation’s and FNBPA’s capital amounts and classifications are also subject to qualitative judgments by the regulators about components, risk weightings and other factors.

The Corporation’s management believes that, as of March 31, 2016 and December 31, 2015, the Corporation and FNBPA met all “well-capitalized” requirements to which each of them was subject.

As of March 31, 2016, the most recent notification from the federal banking agencies categorized the Corporation and FNBPA as “well-capitalized” under the regulatory framework for prompt corrective action. There are no conditions or events since the notification which management believes have changed this categorization.

During 2016, the Corporation redeemed $10.0 million of the TPS issued by Omega Financial Capital Trust I.

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Following are the capital amounts and related ratios as of March 31, 2016 and December 31, 2015 for the Corporation and FNBPA (dollars in thousands):

	Actual					Well-Capitalized Requirements					Minimum Capital Requirements
	Amount		Ratio			Amount		Ratio			Amount		Ratio
March 31, 2016
F.N.B. Corporation
Total capital	$	1,840,801		12.5	%	$	1,475,308		10.0	%	$	1,272,453		8.6	%
Tier 1 capital		1,519,875		10.3			1,180,246		8.0			977,391		6.6
Common equity tier 1		1,412,993		9.6			958,950		6.5			756,095		5.1
Leverage		1,519,875		8.5			893,899		5.0			715,119		4.0
FNBPA
Total capital		1,712,906		11.6			1,472,376		10.0			1,269,925		8.6
Tier 1 capital		1,569,670		10.7			1,177,901		8.0			975,449		6.6
Common equity tier 1		1,489,670		10.1			957,045		6.5			754,593		5.1
Leverage		1,569,670		8.9			885,103		5.0			708,082		4.0
December 31, 2015
F.N.B. Corporation
Total capital	$	1,629,270		12.9	%	$	1,268,396		10.0	%	$	1,014,717		8.0	%
Tier 1 capital		1,321,972		10.4			1,014,717		8.0			761,038		6.0
Common equity tier 1		1,200,715		9.5			824,457		6.5			570,778		4.5
Leverage		1,321,972		8.1			811,553		5.0			649,243		4.0
FNBPA
Total capital		1,426,284		11.3			1,265,990		10.0			1,012,792		8.0
Tier 1 capital		1,289,965		10.2			1,012,792		8.0			759,594		6.0
Common equity tier 1		1,209,965		9.6			822,893		6.5			569,695		4.5
Leverage		1,289,965		8.0			803,041		5.0			642,433		4.0

Beginning in 2016, the minimum capital requirements reflect the phase-in of the capital conservation buffer, in accordance with Basel III standards. The minimum capital requirements presented for December 31, 2015 are based on the regulations that were in effect at that time.

DODD-FRANK WALL STREET REFORM AND CONSUMER PROTECTION ACT

The Dodd-Frank Act broadly affects the financial services industry by establishing a framework for systemic risk oversight, creating a resolution authority for institutions determined to be systemically important, mandating higher capital and liquidity requirements, requiring banks to pay increased fees to regulatory agencies and containing numerous other provisions aimed at strengthening the sound operation of the financial services sector that will fundamentally change the system of regulatory oversight as described in more detail under Part I, Item 1, “Business—Government Supervision and Regulation” included in the Corporation’s 2015 Annual Report on Form 10-K as filed with the SEC on February 26, 2016. Many aspects of the Dodd-Frank Act are subject to further rulemaking and will take effect over several years, making it difficult to anticipate the overall financial impact to the Corporation or across the financial services industry.

ENHANCED REGULATORY CAPITAL STANDARDS

Regulatory capital reform initiatives continue to be updated and released which may impose additional conditions and restrictions on the Corporation’s current business practices and capital strategies.

In July 2013, the FRB published the Basel III Capital Rules (Basel III) establishing a new comprehensive capital framework for U.S. banking organizations. The rules implement the Basel Committee’s December 2010 framework for strengthening international capital standards as well as certain provisions of the Dodd-Frank Act. These reforms seek to strengthen the components of regulatory capital by increasing the quantity and quality of capital held by banking organizations, increasing risk-based capital requirements and making selected changes to the calculation of risk-weighted assets.

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Following are some of the key provisions resulting from the final rule:

• revises the components of regulatory capital to phase out certain TPS for banking organizations with greater than $15.0 billion in total assets;

• adds a new minimum common equity Tier 1 (CET1) ratio of 4.5% of risk-weighted assets;

• implements a new capital conservation buffer of CET1 equal to 2.5% of risk-weighted assets, which will be in addition to the 4.5% CET1 ratio and phased in over a three-year period beginning January 1, 2016;

• increases the minimum Tier 1 capital ratio requirement from 4.0% to 6.0%:

• revises the prompt corrective action thresholds;

• retains the existing risk-based capital treatment for 1-4 family residential mortgages;

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

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

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

The final rule, which became effective for the Corporation on January 1, 2015, includes a phase-in period through January 1, 2019 for several provisions of the rule, including the new minimum capital ratio requirements and the capital conservation buffer.

As required by the Dodd-Frank Act, the FRB and Office of the Comptroller of the Currency (OCC) published final rules regarding company-run stress testing (DFAST rules). The DFAST rules require institutions, such as the Corporation and FNBPA, with average total consolidated assets greater than $10 billion, to conduct an annual company-run stress test of capital, consolidated earnings and losses under one base and at least two stress scenarios provided by the federal bank regulators. Implementation of the DFAST rules for covered institutions with total consolidated assets between $10 billion and $50 billion began in 2013. The DFAST rules and guidance require increased involvement by boards of directors in the stress testing process and public disclosure of the results. Public disclosure of summary stress test results under the severely adverse scenario began in June 2015 for stress tests commencing in 2014. The next public disclosure of the Corporations’ stress testing results using data as of December 31, 2015 will be in October 2016. The Corporation’s capital ratios reflected in the stress test calculations are an important factor considered by the FRB and OCC in evaluating the capital adequacy of the Corporation and FNBPA and whether the appropriateness of any proposed payments of dividends or stock repurchases may be an unsafe or unsound practice. In reviewing the Corporation’s and FNBPA’s stress test results, the FRB and OCC will consider both quantitative and qualitative factors.

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ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

The information called for by this item is provided under the caption Market Risk in Part I, Item 2—Management’s Discussion and Analysis of Financial Condition and Results of Operations and is incorporated herein by reference. There are no material changes in the information provided under Part II, Item 7A, “Quantitative and Qualitative Disclosures About Market Risk” included in the Corporation’s 2015 Annual Report on Form 10-K as filed with the SEC on February 26, 2016.

ITEM 4. CONTROLS AND PROCEDURES

EVALUATION OF DISCLOSURE CONTROLS AND PROCEDURES. The Corporation’s management, with the participation of the Corporation’s principal executive and financial officers, evaluated the Corporation’s disclosure controls and procedures (as defined in Rules 13a–15(e) and 15d–15(e) under the Securities Exchange Act of 1934, as amended) as of the end of the period covered by this Quarterly Report on Form 10-Q. Based on this evaluation, the Corporation’s management, including the Chief Executive Officer (CEO) and the Chief Financial Officer (CFO), concluded that, as of the end of the period covered by this quarterly report, the Corporation’s disclosure controls and procedures were effective as of such date at the reasonable assurance level as discussed below to ensure that information required to be disclosed by the Corporation in the reports it files under the Securities Exchange Act of 1934, as amended, is recorded, processed, summarized and reported within the time periods specified in the rules and forms of the SEC and that such information is accumulated and communicated to the Corporation’s management, including its principal executive officer and principal financial officer, as appropriate to allow timely decisions regarding required disclosure.

LIMITATIONS ON THE EFFECTIVENESS OF CONTROLS. The Corporation’s management, including the CEO and the CFO, does not expect that the Corporation’s disclosure controls and internal controls will prevent all errors and all fraud. A control system, no matter how well conceived and operated, can provide only reasonable, not absolute, assurance that the objectives of the control system are met. Because of the inherent limitations in all control systems, no evaluation of controls can provide absolute assurance that all control issues and instances of fraud, if any, within the Corporation have been detected. These inherent limitations include the realities that judgments in decision-making can be faulty, and that breakdowns can occur because of simple error or mistake. In addition, controls can be circumvented by the individual acts of some persons, by collusion of two or more people or by management override of the controls.

CHANGES IN INTERNAL CONTROLS. The CEO and the CFO have evaluated the changes to the Corporation’s internal controls over financial reporting that occurred during the Corporation’s fiscal quarter ended March 31, 2016, as required by paragraph (d) of Rules 13a–15 and 15d–15 under the Securities Exchange Act of 1934, as amended, and have concluded that there were no such changes that materially affected, or are reasonably likely to materially affect, the Corporation’s internal controls over financial reporting.

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PART II—OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

The information required by this Item is set forth in the “Other Legal Proceedings” discussion in Note 9 of the Notes to the Consolidated Financial Statements, which portion is incorporated herein by reference in response to this Item.

ITEM 1A. RISK FACTORS

There are no material changes from any of the risk factors previously disclosed in the Corporation’s 2015 Annual Report on Form 10-K as filed with the SEC on February 26, 2016.

ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

NONE

ITEM 3. DEFAULTS UPON SENIOR SECURITIES

NONE

ITEM 4. MINE SAFETY DISCLOSURES

Not Applicable.

ITEM 5. OTHER INFORMATION

NONE

ITEM 6. EXHIBITS

Exhibit Index

10.1	Metro Bancorp, Inc. Amended and Restated 2006 Employee Stock Option and Restricted Stock Plan (incorporated by reference to Exhibit 99.1 of Post-Effective Amendment No. 1 on Form S-8 to the Registrant’s Registration Statement on Form S-4 (Registration No. 333-207334)).
10.2	Metro Bancorp, Inc. 2011 Directors Stock Option Plan (incorporated by reference to Exhibit 99.2 of the Registrant’s Current Report on Form 8-K filed on February 24, 2016).
10.3	Metro Bancorp, Inc. Amended 2001 Directors Stock Option Plan (incorporated by reference to Exhibit 99.3 of the Registrant’s Current Report on Form 8-K filed on February 24, 2016).
10.4	F.N.B. Corporation 2007 Incentive Compensation Plan (incorporated by reference to Exhibit A of the Corporation’s 2015 Proxy Statement filed on April 1, 2015).
31.1	Certification of Chief Executive Officer Sarbanes-Oxley Act Section 302. (filed herewith).
31.2	Certification of Chief Financial Officer Sarbanes-Oxley Act Section 302. (filed herewith).
32.1	Certification of Chief Executive Officer Sarbanes-Oxley Act Section 906. (furnished herewith).
32.2	Certification of Chief Financial Officer Sarbanes-Oxley Act Section 906. (furnished herewith).
101	The following materials from F.N.B. Corporation’s Quarterly Report on Form 10-Q for the period ended March 31, 2016, formatted in XBRL: (i) the Consolidated Balance Sheets, (ii) the Consolidated Statements of Comprehensive Income, (iii) the Consolidated Statements of Stockholders’ Equity, (iv) the Consolidated Statements of Cash Flows and (v) the Notes to Consolidated Financial Statements. (filed herewith).

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SIGNATURES

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

	F.N.B. Corporation
Dated: May 6, 2016	/s/ Vincent J. Delie, Jr.
	Vincent J. Delie, Jr.
	President and Chief Executive Officer (Principal Executive Officer)
Dated: May 6, 2016	/s/ Vincent J. Calabrese, Jr.
	Vincent J. Calabrese, Jr.
	Chief Financial Officer (Principal Financial Officer)
Dated: May 6, 2016	/s/ Timothy G. Rubritz
	Timothy G. Rubritz
	Corporate Controller (Principal Accounting Officer)

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EX-31.1

EXHIBIT 31.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER

SARBANES-OXLEY ACT SECTION 302

I, Vincent J. Delie, Jr., certify that:

1. I have reviewed this quarterly report on Form 10-Q for the quarter ended March 31, 2016 of F.N.B. 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 controls 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.

Date: May 6, 2016	/s/ Vincent J. Delie, Jr.
	Vincent J. Delie, Jr. President and Chief Executive Officer

EX-31.2

EXHIBIT 31.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER

SARBANES-OXLEY ACT SECTION 302

I, Vincent J. Calabrese, Jr., certify that:

1. I have reviewed this quarterly report on Form 10-Q for the quarter ended March 31, 2016 of F.N.B. 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 controls 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.

Date: May 6, 2016	/s/ Vincent J. Calabrese, Jr.
	Vincent J. Calabrese, Jr. Chief Financial Officer

EX-32.1

EXHIBIT 32.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER

SARBANES-OXLEY ACT SECTION 906

Pursuant to Section 1350 of Title 18 of the United States Code, I, Vincent J. Delie, Jr., President and Chief Executive Officer of F.N.B. Corporation (the “Company”), hereby certify that, to the best of my knowledge:

1. The Company’s Form 10-Q Quarterly Report for the period ended March 31, 2016 (the “Report”) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: May 6, 2016	/s/ Vincent J. Delie, Jr.
	Vincent J. Delie, Jr. President and Chief Executive Officer

EX-32.2

EXHIBIT 32.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER

SARBANES-OXLEY ACT SECTION 906

Pursuant to Section 1350 of Title 18 of the United States Code, I, Vincent J. Calabrese, Jr., Chief Financial Officer of F.N.B. Corporation (the “Company”), hereby certify that, to the best of my knowledge:

1. The Company’s Form 10-Q Quarterly Report for the period ended March 31, 2016 (the “Report”) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: May 6, 2016	/s/ Vincent J. Calabrese, Jr.
	Vincent J. Calabrese, Jr. Chief Financial Officer

XML

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2016	Apr. 30, 2016
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2016
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	Q1
Trading Symbol	FNB
Entity Registrant Name	FNB CORP/FL/
Entity Central Index Key	0000037808
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		209,803,853

XML

Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Assets
Cash and due from banks	$ 260,426	$ 207,399
Interest bearing deposits with banks	85,519	281,720
Cash and Cash Equivalents	345,945	489,119
Securities available for sale	2,099,343	1,630,567
Securities held to maturity (fair value of $1,803,453 and $1,643,416)	1,776,020	1,637,061
Residential mortgage loans held for sale	7,683	4,781
Loans and leases, net of unearned income of $49,332 and $51,642	14,165,599	12,190,440
Allowance for credit losses	(147,800)	(142,012)
Net Loans and Leases	14,017,799	12,048,428
Premises and equipment, net	208,672	159,080
Goodwill	1,006,934	833,086
Core deposit and other intangible assets, net	80,116	45,644
Bank owned life insurance	310,106	308,192
Other assets	471,906	401,704
Total Assets	20,324,524	17,557,662
Liabilities
Non-interest bearing demand	3,896,782	3,059,949
Interest bearing demand	6,512,461	5,311,589
Savings	2,291,656	1,786,459
Certificates and other time deposits	2,689,584	2,465,466
Total Deposits	15,390,483	12,623,463
Short-term borrowings	1,563,888	2,048,896
Long-term borrowings	657,445	641,480
Other liabilities	194,687	147,641
Total Liabilities	17,806,503	15,461,480
Stockholders' Equity
Preferred stock-$0.01 par value; liquidation preference of $1,000 per share Authorized - 20,000,000 shares Issued - 110,877 shares	106,882	106,882
Common stock-$0.01 par value Authorized - 500,000,000 shares Issued - 211,016,267 and 176,595,060 shares	2,112	1,766
Additional paid-in capital	2,214,959	1,808,210
Retained earnings	242,045	243,217
Accumulated other comprehensive loss	(33,651)	(51,133)
Treasury stock - 1,282,976 and 1,153,390 shares at cost	(14,326)	(12,760)
Total Stockholders' Equity	2,518,021	2,096,182
Total Liabilities and Stockholders' Equity	$ 20,324,524	$ 17,557,662

XML

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Statement of Financial Position [Abstract]
Securities held to maturity, fair value	$ 1,803,453	$ 1,643,416
Unearned income on loans	$ 49,332	$ 51,642
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, liquidation preference per share	$ 1,000	$ 1,000
Preferred stock, shares authorized	20,000,000	20,000,000
Preferred stock, shares issued	110,877	110,877
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	500,000,000	500,000,000
Common stock, shares issued	211,016,267	176,595,060
Treasury stock, shares	1,282,976	1,153,390

XML

Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Interest Income
Loans and leases, including fees	$ 137,121	$ 117,739
Securities:
Taxable	16,493	14,214
Nontaxable	2,018	1,373
Dividends	5	11
Other	117	32
Total Interest Income	155,754	133,369
Interest Expense
Deposits	9,486	7,449
Short-term borrowings	2,361	1,768
Long-term borrowings	3,553	2,231
Total Interest Expense	15,400	11,448
Net Interest Income	140,354	121,921
Provision for credit losses	11,768	8,136
Net Interest Income After Provision for Credit Losses	128,586	113,785
Non-Interest Income
Service charges	21,276	15,817
Trust fees	5,282	5,161
Insurance commissions and fees	4,921	4,369
Securities commissions and fees	3,374	3,057
Net securities gains (losses)	71	(9)
Mortgage banking operations	1,595	1,799
Bank owned life insurance	2,062	1,843
Other	7,463	6,145
Total Non-Interest Income	46,044	38,182
Non-Interest Expense
Salaries and employee benefits	56,425	49,269
Net occupancy	9,266	8,976
Equipment	8,556	7,648
Amortization of intangibles	2,649	2,115
Outside services	9,303	8,777
FDIC insurance	3,968	3,689
Merger and acquisition related	24,940
Other	21,541	14,181
Total Non-Interest Expense	136,648	94,655
Income Before Income Taxes	37,982	57,312
Income taxes	11,850	16,969
Net Income	26,132	40,343
Less: Preferred stock dividends	2,010	2,010
Net Income Available to Common Stockholders	$ 24,122	$ 38,333
Net Income per Common Share - Basic	$ 0.12	$ 0.22
Net Income per Common Share - Diluted	0.12	0.22
Cash Dividends per Common Share	$ 0.12	$ 0.12
Comprehensive income	$ 43,614	$ 51,366

XML

Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Stock [Member]
Balance at Dec. 31, 2014	$ 2,021,456	$ 106,882	$ 1,754	$ 1,798,984	$ 176,120	$ (46,003)	$ (16,281)
Comprehensive income	51,366				40,343	11,023
Dividends declared:
Preferred stock	(2,010)				(2,010)
Common stock: $0.12/share	(20,992)				(20,992)
Issuance of common stock	4,435		9	5,986			(1,560)
Restricted stock compensation	340			340
Tax benefit of stock-based compensation	681			681
Balance at Mar. 31, 2015	2,055,276	106,882	1,763	1,805,991	193,461	(34,980)	(17,841)
Balance at Dec. 31, 2015	2,096,182	106,882	1,766	1,808,210	243,217	(51,133)	(12,760)
Comprehensive income	43,614				26,132	17,482
Dividends declared:
Preferred stock	(2,010)				(2,010)
Common stock: $0.12/share	(25,294)				(25,294)
Issuance of common stock	96		5	1,657			(1,566)
Issuance of common stock-acquisitions	404,020		341	403,679
Restricted stock compensation	1,136			1,136
Tax benefit of stock-based compensation	277			277
Balance at Mar. 31, 2016	$ 2,518,021	$ 106,882	$ 2,112	$ 2,214,959	$ 242,045	$ (33,651)	$ (14,326)

XML

Consolidated Statements of Stockholders' Equity (Unaudited) (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Statement of Stockholders' Equity [Abstract]
Common stock dividends per share	$ 0.12	$ 0.12

XML

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Operating Activities
Net income	$ 26,132	$ 40,343
Adjustments to reconcile net income to net cash flows provided by operating activities:
Depreciation, amortization and accretion	11,759	11,725
Provision for credit losses	11,768	8,136
Deferred tax expense	255	3,217
Net securities (gains) losses	(71)	9
Tax benefit of stock-based compensation	(277)	(681)
Loans originated for sale	(95,503)	(71,499)
Loans sold	94,765	74,870
Gain on sale of loans	(2,164)	(1,813)
Net change in:
Interest receivable	(109)	(1,704)
Interest payable	1,301	(178)
Bank owned life insurance	(1,850)	(1,323)
Other, net	47,865	5,187
Net cash flows provided by operating activities	93,871	66,289
Investing Activities
Net change in loans and leases	(122,982)	(167,685)
Securities available for sale:
Purchases	(510,271)	(90,156)
Sales	615,199	33,228
Maturities	170,266	66,275
Securities held to maturity:
Purchases	(217,574)	(130,506)
Sales		69,394
Maturities	77,369
Purchase of bank owned life insurance	(64)	(8)
Increase in premises and equipment	(13,878)	(6,199)
Net cash received in business combinations	46,854
Net cash flows provided by (used in) investing activities	44,919	(225,657)
Financing Activities
Demand (non-interest bearing and interest bearing) and savings accounts	411,857	445,685
Time deposits	28,558	(20,779)
Short-term borrowings	(687,409)	(301,158)
Increase in long-term borrowings	42,371	6,598
Decrease in long-term borrowings	(51,546)	(6,579)
Net proceeds from issuance of common stock	1,232	4,775
Tax benefit of stock-based compensation	277	681
Cash dividends paid:
Preferred stock	(2,010)	(2,010)
Common stock	(25,294)	(20,992)
Net cash flows (used in) provided by financing activities	(281,964)	106,221
Net Decrease in Cash and Cash Equivalents	(143,174)	(53,147)
Cash and cash equivalents at beginning of period	489,119	287,393
Cash and Cash Equivalents at End of Period	$ 345,945	$ 234,246

XML

Summary of Significant Accounting Policies

3 Months Ended

Mar. 31, 2016

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Basis of Presentation

The Corporation’s accompanying consolidated financial statements and these notes to the financial statements include subsidiaries in which the Corporation has a controlling financial interest. The Corporation owns and operates FNBPA, First National Trust Company, First National Investment Services Company, LLC, F.N.B. Investment Advisors, Inc., First National Insurance Agency, LLC, Regency, Bank Capital Services, LLC and F.N.B. Capital Corporation, LLC, and includes results for each of these entities in the accompanying consolidated financial statements.

The accompanying consolidated financial statements include all adjustments that are necessary, in the opinion of management, to fairly reflect the Corporation’s financial position and results of operations in accordance with U.S. generally accepted accounting principles (GAAP). All significant intercompany balances and transactions have been eliminated. Certain prior period amounts have been reclassified to conform to the current period presentation. Events occurring subsequent to the date of the balance sheet have been evaluated for potential recognition or disclosure in the consolidated financial statements through the date of the filing of the consolidated financial statements with the Securities and Exchange Commission (SEC).

Certain information and note disclosures normally included in consolidated financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to the rules and regulations of the SEC. The interim operating results are not necessarily indicative of operating results the Corporation expects for the full year. These interim consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in the Corporation’s Annual Report on Form 10-K filed with the SEC on February 26, 2016.

Use of Estimates

The accounting and reporting policies of the Corporation conform with GAAP. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could materially differ from those estimates. Material estimates that are particularly susceptible to significant changes include the allowance for credit losses, securities valuations, goodwill and other intangible assets, fair value measurements and income taxes.

Business Combinations

Business combinations are accounted for by applying the acquisition method in accordance with Accounting Standards Codification (ASC) 805, Business Combinations. Under the acquisition method, identifiable assets acquired and liabilities assumed, and any non-controlling interest in the acquiree at the acquisition date are measured at their fair values as of that date, and are recognized separately from goodwill. Results of operations of the acquired entities are included in the consolidated statement of comprehensive income from the date of acquisition. Beginning in 2016, measurement-period adjustments are recorded in the period the adjustment is identified. Prior to this time, measurement-period adjustments were recorded retrospectively.

Cloud Computing Arrangements

Beginning in 2016, for new or materially modified contracts, the Corporation prospectively adopted new accounting principles to evaluate fees paid for cloud computing arrangements to determine if those arrangements include the purchase of or license to software that should be accounted for separately as internal-use software. If a contract includes the purchase or license to software that should be accounted for separately as internal-use software, the contract is amortized over the software’s identified useful life in amortization of intangibles. For contracts that do not include a software license, the contract is accounted for as a service contract with fees paid recorded in other non-interest expense.

Stock Based Compensation

The Corporation accounts for its stock based compensation awards in accordance with Accounting Standards Codification (ASC) 718, Compensation—Stock Compensation, which requires the measurement and recognition of compensation expense, based on estimated fair values, for all share-based awards, including stock options and restricted stock, made to employees and directors.

ASC 718 requires companies to estimate the fair value of share-based awards on the date of grant. The value of the portion of the award that is ultimately expected to vest is recognized as expense in the Corporation’s consolidated statement of comprehensive income over the shorter of requisite service periods or the period through the date that the employee first becomes eligible to retire. Some of the Corporation’s plans contain performance targets that affect vesting and can be achieved after the requisite service period and accounted for as a performance condition. Beginning in 2016, the performance target is not reflected in the estimation of the award’s grant date fair value and compensation cost is recognized in the period in which it becomes probable that the performance condition will be achieved.

Because share-based compensation expense is based on awards that are ultimately expected to vest, share-based compensation expense has been reduced to account for estimated forfeitures. Forfeitures are estimated at the time of grant and revised, if necessary, in subsequent periods if actual forfeitures differ from those estimates.

Variable Interest Entities

The Corporation has investments in certain partnerships and limited liability entities that qualify as variable interest entities (VIEs). These entities are evaluated on an on-going basis to determine whether they should be consolidated. Consolidation of a VIE is appropriate if a reporting entity holds a controlling financial interest in the VIE. The Corporation has determined that it does not hold a controlling financial interest in any of the VIEs and, therefore, the assets and liabilities of these entities are not consolidated into its financial statements. Instead, investments in these entities are accounted for under the equity method of accounting and are evaluated periodically for impairment. The recorded investment in these entities is reported in other assets on the consolidated balance sheets.

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New Accounting Standards

3 Months Ended

Mar. 31, 2016

Accounting Changes and Error Corrections [Abstract]

New Accounting Standards

2. NEW ACCOUNTING STANDARDS

The following paragraphs summarize accounting pronouncements applicable to the Corporation that have been issued by the Financial Accounting Standards Board (FASB) but are not yet effective.

Revenue Recognition

Accounting Standards Update (ASU or Update) 2016-10, Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing, clarifies several aspects of identifying performance obligations and licensing implementation guidance including guidance that is expected to reduce the cost and complexity by eliminating the need to assess whether goods and services are performance obligations if they are immaterial in the context of the contract with the customer.

ASU 2016-08, Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net), clarifies the guidance on principal versus agent considerations when another party is involved in providing goods and services to a customer. The guidance requires a company to determine whether it is required to provide the specific good or service itself or to arrange for that good or service to be provided by another party.

ASU 2014-09, Revenue from Contracts with Customers (Topic 606), modifies the guidance used to recognize revenue from contracts with customers for transfers of goods and services and transfers of nonfinancial assets, unless those contracts are within the scope of other guidance. The guidance also requires new qualitative and quantitative disclosures about contract balances and performance obligations. The Update can be adopted using either the full retrospective method or modified retrospective method. The Corporation intends to use the modified retrospective approach when adopted.

The guidance for these Revenue Recognition Updates is effective for annual periods beginning in the first quarter of 2018. Early application is permitted beginning in the first quarter of 2017. The Corporation is currently assessing the potential impact to its Consolidated Financial Statements.

Stock Based Compensation

ASU 2016-09, Compensation—Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting, simplifies several aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities and classification on the statement of cash flows. The Update is effective in the first quarter of 2017 by an application method determined by the type of transaction impacted by the adoption. Early application is permitted. The Corporation is currently assessing the potential impact to its Consolidated Financial Statements.

Investments

ASU 2016-07, Investments—Equity Method and Joint Ventures (Topic 323): Simplifying the Transition to the Equity Method of Accounting, eliminates the requirement for an investor to retrospectively apply the equity method when an investment that it had accounted for by another method qualifies for use of the equity method. The Update is effective in the first quarter of 2017 with prospective application. Early application is permitted. This Update is not expected to have a material effect on the Consolidated Financial Statements.

Derivative and Hedging Activities

ASU 2016-06, Derivatives and Hedging (Topic 815): Contingent Put and Call Options in Debt Instruments (a consensus of the Emerging Issues Task Force), provides clarification that determination of whether an embedded contingent put or call option in a financial instrument is clearly and closely related to the debt host requires only an analysis of the four-step decision sequence described in ASC 815-15-25-42. The Update is effective in the first quarter of 2017 with modified retrospective application. Early application is permitted. If an entity is no longer required to bifurcate an embedded derivative as a result of this Update and elects fair value accounting, the effects should be reported as a cumulative-effect adjustment. This Update is not expected to have a material effect on the Consolidated Financial Statements.

ASU 2016-05, Derivatives and Hedging (Topic 815): Effect of Derivative Contract Novations on Existing Hedge Accounting Relationships (a consensus of the Emerging Issues Task Force), clarifies that a change in counterparty to a derivative instrument that has been designated as a hedging instrument under Topic 815 does not, in and of itself, require dedesignation of that hedging relationship provided all other hedge accounting criteria continue to be met. The Update is effective in the first quarter of 2017 with either prospective or modified retrospective application. Early application is permitted. This Update is not expected to have a material effect on the Consolidated Financial Statements.

Extinguishments of Liabilities

ASU 2016-04, Liabilities—Extinguishments of Liabilities (Subtopic 405-20): Recognition of Breakage for Certain Prepaid Stored-Value Products (a consensus of the Emerging Issues Task Force), requires entities that sell prepaid stored-value products redeemable for goods, services or cash at third-party merchants to recognize breakage. The Update is effective in the first quarter of 2018 with either the modified retrospective method by means of a cumulative-effect adjustment to retained earnings or retrospective application. Early application is permitted. This Update is not expected to have a material effect on the Consolidated Financial Statements.

Leases

ASU 2016-02, Leases (Topic 842), requires lessees to put most leases on their balance sheet but recognize expenses in the income statement similar to current accounting. In addition, the Update changes the guidance for sale-leaseback transactions, initial direct costs and lease executory costs for most entities. All entities will classify leases to determine how to recognize lease related revenue and expense. The Update is effective in the first quarter of 2019 with modified retrospective application including a number of optional practical expedients. Early application is permitted. The Corporation is currently assessing the potential impact to its Consolidated Financial Statements.

Financial Instruments – Recognition and Measurement

ASU 2016-01, Financial Instruments—Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities, amends the presentation and accounting for certain financial instruments, including liabilities measured at fair value under the fair value option, and equity investments. The guidance also updates fair value presentation and disclosure requirements for financial instruments measured at amortized cost. The Update is effective in the first quarter of 2018 with a cumulative-effect adjustment as of the beginning of the fiscal year of adoption. Early application is prohibited except for the provision requiring the recognition of changes in fair value related to changes in an entity’s own credit risk in other comprehensive income for financial liabilities measured using the fair value option. This Update is not expected to have a material effect on the Consolidated Financial Statements.

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Mergers and Acquisitions

3 Months Ended

Mar. 31, 2016

Business Combinations [Abstract]

Mergers and Acquisitions

3. MERGERS AND ACQUISITIONS

Branch Purchase – Fifth Third Bank

On April 22, 2016, the Corporation completed its purchase of 17 branch-banking locations and related consumer loans in the Pittsburgh, Pennsylvania metropolitan area from Fifth Third Bank, in which the Corporation acquired approximately $99,500 in loans and $302,000 in deposits. The assets and liabilities relating to the branches purchased were recorded on the Corporation’s consolidated balance sheet at their preliminary fair values as of April 22, 2016, and the related results of operation for these branches have been included in the Corporation’s consolidated statement of comprehensive income since that date. Based on the preliminary purchase price allocation, the Corporation recorded $10,798 in goodwill and $5,200 in core deposit intangibles. These fair value estimates are provisional amounts based on third party valuations that are currently under review. The goodwill for this transaction is expected to be deductible for income tax purposes.

Metro Bancorp, Inc.

On February 13, 2016, the Corporation completed its acquisition of Metro Bancorp, Inc. (METR), a bank holding company based in Harrisburg, Pennsylvania. The acquisition will enhance the Corporation’s distribution and scale across Central Pennsylvania, strengthen its position as the largest Pennsylvania-based regional bank and allow the Corporation to leverage the significant infrastructure investments made in connection with the expansion of its product offerings and risk management systems. On the acquisition date, the estimated fair values of METR included $2,797,199 in assets, $1,869,046 in loans and $2,327,219 in deposits. The acquisition was valued at $404,020 and resulted in the Corporation issuing 34,041,181 shares of its common stock in exchange for 14,345,319 shares of METR common stock. The Corporation also acquired the fully vested outstanding stock options of METR. The assets and liabilities of METR were recorded on the Corporation’s consolidated balance sheet at their preliminary estimated fair values as of February 13, 2016, the acquisition date, and METR’s results of operations have been included in the Corporation’s consolidated statement of comprehensive income since that date. METR’s banking affiliate, Metro Bank, was merged into FNBPA on February 13, 2016. Based on the preliminary purchase price allocation, the Corporation recorded $173,848 in goodwill and $36,801 in core deposit intangibles as a result of the acquisition. These fair value estimates are provisional amounts based on third party valuations that are currently under review. None of the goodwill is deductible for income tax purposes.

The following pro forma financial information for the three months ended March 31, 2015 reflects the Corporation’s estimated consolidated pro forma results of operations as if the METR acquisition occurred on January 1, 2015, unadjusted for potential cost savings and other business synergies the Corporation expects to receive as a result of the acquisition:

	F.N.B. Corporation		METR		Pro Forma Adjustments			Pro Forma Combined
Revenue (net interest income and non-interest income)	$	160,103	$	33,626	$	(1,061	)	$	192,668
Net income		40,343		5,722		(2,003	)		44,062
Net income available to common stockholders		38,333		5,702		(1,983	)		42,052
Earnings per common share – basic		0.22		0.40		—			0.20
Earnings per common share – diluted		0.22		0.39		—			0.20

The pro forma adjustments reflect amortization and associated taxes related to the purchase accounting adjustments made to record various acquired items at fair value.

In connection with the METR acquisition, the Corporation incurred expenses related to systems conversions and other costs of integrating and conforming acquired operations with and into the Corporation. These merger-related charges amounted to $24,577 and were expensed as incurred. Severance costs comprised 50.9% of the merger-related expenses, with the remainder consisting of other non-interest expenses, including professional services, marketing and advertising, technology and communications, occupancy and equipment, and charitable contributions. The Corporation also incurred issuance costs of $743 which were charged to additional paid-in capital.

Branch Purchase – Bank of America

On September 18, 2015, the Corporation completed its purchase of five branch-banking locations in southeastern Pennsylvania from Bank of America (BofA). The fair value of the acquired assets totaled $154,619, including $148,159 in cash, $4,485 in goodwill and intangible assets, and $1,975 in fixed and other assets. The Corporation also assumed $154,619 in deposits associated with these branches. The Corporation paid a deposit premium of 1.94% and acquired an immaterial amount of loans as part of the transaction. The Corporation’s operating results for 2015 include the impact of branch activity subsequent to the September 18, 2015 closing date. Goodwill of $1,485 for this transaction is deductible for income tax purposes.

The following table summarizes the amounts recorded on the consolidated balance sheet as of each of the acquisition dates in conjunction with the METR acquisition and the BofA branch acquisition discussed above:

	METR		BofA Branches
Fair value of consideration paid	$	404,020	$	—
Fair value of identifiable assets acquired:
Cash and cash equivalents		46,854		148,159
Securities		722,980		—
Loans		1,869,046		842
Other intangible assets		36,801		3,000
Other assets		121,518		1,133
Total identifiable assets acquired		2,797,199		153,134
Fair value of liabilities assumed:
Deposits		2,327,219		154,619
Borrowings		227,539		—
Other liabilities		12,269		—
Total liabilities assumed		2,567,027		154,619
Fair value of net identifiable assets acquired		230,172		(1,485	)
Goodwill recognized (1)	$	173,848	$	1,485

(1) All of the goodwill for both of these transactions has been recorded by FNBPA.

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Securities

3 Months Ended

Mar. 31, 2016

Investments, Debt and Equity Securities [Abstract]

Securities

4. SECURITIES

The amortized cost and fair value of securities are as follows:

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Securities Available for Sale
March 31, 2016
U.S. Treasury	$	29,771	$	223	$	—		$	29,994
U.S. government-sponsored entities		398,497		2,617		(36	)		401,078
Residential mortgage-backed securities:
Agency mortgage-backed securities		1,075,195		12,691		(21	)		1,087,865
Agency collateralized mortgage obligations		524,722		3,812		(2,904	)		525,630
Non-agency collateralized mortgage obligations		1,111		—		(15	)		1,096
Commercial mortgage-backed securities		3,674		—		(1	)		3,673
States of the U.S. and political subdivisions		39,620		283		(99	)		39,804
Other debt securities		9,754		177		(1,023	)		8,908
Total debt securities		2,082,344		19,803		(4,099	)		2,098,048
Equity securities		975		320		—			1,295
	$	2,083,319	$	20,123	$	(4,099	)	$	2,099,343
December 31, 2015
U.S. Treasury	$	29,738	$	58	$	—		$	29,796
U.S. government-sponsored entities		368,463		856		(1,325	)		367,994
Residential mortgage-backed securities:
Agency mortgage-backed securities		703,069		4,594		(2,832	)		704,831
Agency collateralized mortgage obligations		503,328		1,032		(8,530	)		495,830
Non-agency collateralized mortgage obligations		1,177		13		—			1,190
Commercial mortgage-backed securities		4,299		—		(12	)		4,287
States of the U.S. and political subdivisions		10,748		309		—			11,057
Other debt securities		14,729		208		(651	)		14,286
Total debt securities		1,635,551		7,070		(13,350	)		1,629,271
Equity securities		975		324		(3	)		1,296
	$	1,636,526	$	7,394	$	(13,353	)	$	1,630,567
Securities Held to Maturity
March 31, 2016
U.S. Treasury	$	500	$	184	$	—		$	684
U.S. government-sponsored entities		122,333		1,606		—			123,939
Residential mortgage-backed securities:
Agency mortgage-backed securities		830,640		18,063		(4	)		848,699
Agency collateralized mortgage obligations		520,576		4,123		(2,931	)		521,768
Non-agency collateralized mortgage obligations		2,436		4		(9	)		2,431
Commercial mortgage-backed securities		50,526		1,222		(92	)		51,656
States of the U.S. and political subdivisions		249,009		5,441		(174	)		254,276
	$	1,776,020	$	30,643	$	(3,210	)	$	1,803,453
December 31, 2015
U.S. Treasury	$	500	$	153	$	—		$	653
U.S. government-sponsored entities		137,385		809		(395	)		137,799
Residential mortgage-backed securities:
Agency mortgage-backed securities		709,970		9,858		(1,176	)		718,652
Agency collateralized mortgage obligations		499,694		803		(7,657	)		492,840
Non-agency collateralized mortgage obligations		2,681		14		—			2,695
Commercial mortgage-backed securities		51,258		115		(259	)		51,114
States of the U.S. and political subdivisions		235,573		4,191		(101	)		239,663
	$	1,637,061	$	15,943	$	(9,588	)	$	1,643,416

The increase in securities in 2016 primarily relates to the METR acquisition completed on February 13, 2016.

Gross gains and gross losses were realized on securities as follows:

	Three Months Ended
	March 31,
	2016		2015
Gross gains	$	71	$	—
Gross losses		—		(9	)
	$	71	$	(9	)

As of March 31, 2016, the amortized cost and fair value of securities, by contractual maturities, were as follows:

	Available for Sale				Held to Maturity
	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Due in one year or less	$	179	$	180	$	12,126	$	12,140
Due from one to five years		441,067		444,025		114,319		115,578
Due from five to ten years		29,112		29,332		53,587		54,986
Due after ten years		7,284		6,247		191,810		196,195
		477,642		479,784		371,842		378,899
Residential mortgage-backed securities:
Agency mortgage-backed securities		1,075,195		1,087,865		830,640		848,699
Agency collateralized mortgage obligations		524,722		525,630		520,576		521,768
Non-agency collateralized mortgage obligations		1,111		1,096		2,436		2,431
Commercial mortgage-backed securities		3,674		3,673		50,526		51,656
Equity securities		975		1,295		—		—
	$	2,083,319	$	2,099,343	$	1,776,020	$	1,803,453

Maturities may differ from contractual terms because borrowers may have the right to call or prepay obligations with or without penalties. Periodic payments are received on mortgage-backed securities based on the payment patterns of the underlying collateral.

At March 31, 2016 and December 31, 2015, securities with a carrying value of $2,472,531 and $1,728,939, respectively, were pledged to secure public deposits, trust deposits and for other purposes as required by law. Securities with a carrying value of $361,338 and $272,629 at March 31, 2016 and December 31, 2015, respectively, were pledged as collateral for short-term borrowings. In total, 73.1% of securities as of March 31, 2016 were pledged for purposes as stated above, compared to 61.3% as of December 31, 2015.

Following are summaries of the fair values and unrealized losses of securities, segregated by length of impairment:

	Less than 12 Months							12 Months or More							Total
	#		Fair Value		Unrealized Losses			#		Fair Value		Unrealized Losses			#		Fair Value		Unrealized Losses
Securities Available for Sale
March 31, 2016
U.S. government-sponsored entities		2	$	17,960	$	(36	)		—	$	—	$	—			2	$	17,960	$	(36	)
Residential mortgage-backed securities:
Agency mortgage-backed securities		2		56,402		(21	)		—		—		—			2		56,402		(21	)
Agency collateralized mortgage obligations		2		29,786		(28	)		15		175,354		(2,876	)		17		205,140		(2,904	)
Non-agency collateralized mortgage obligations		1		1,091		(15	)		—		—		—			1		1,091		(15	)
Commercial mortgage-backed securities		1		3,673		(1	)		—		—		—			1		3,673		(1	)
States of the U.S. and political subdivisions		16		21,325		(99	)		—		—		—			16		21,325		(99	)
Other debt securities		—		—		—			3		3,875		(1,023	)		3		3,875		(1,023	)
		24	$	130,237	$	(200	)		18	$	179,229	$	(3,899	)		42	$	309,466	$	(4,099	)
December 31, 2015
U.S. government-sponsored entities		6	$	99,131	$	(814	)		2	$	34,487	$	(511	)		8	$	133,618	$	(1,325	)
Residential mortgage-backed securities:
Agency mortgage-backed securities		19		359,250		(2,832	)		—		—		—			19		359,250		(2,832	)
Agency collateralized mortgage obligations		9		126,309		(1,366	)		18		215,330		(7,164	)		27		341,639		(8,530	)
Commercial mortgage-backed securities		1		4,287		(12	)		—		—		—			1		4,287		(12	)
Other debt securities		—		—		—			3		4,245		(651	)		3		4,245		(651	)
Equity securities		1		632		(3	)		—		—		—			1		632		(3	)
		36	$	589,609	$	(5,027	)		23	$	254,062	$	(8,326	)		59	$	843,671	$	(13,353	)
Securities Held to Maturity
March 31, 2016
Residential mortgage-backed securities:
Agency mortgage-backed securities		1	$	922		(4	)		—	$	—		—			1	$	922	$	(4	)
Agency collateralized mortgage obligations		—		—		—			16		181,913		(2,931	)		16		181,913		(2,931	)
Non-agency collateralized mortgage obligations		2		1,294		(9	)		—		—		—			2		1,294		(9	)
Commercial mortgage-backed securities		1		8,579		(92	)		—		—		—			1		8,579		(92	)
States of the U.S. and political subdivisions		5		10,007		(173	)		1		2,055		(1	)		6		12,062		(174	)
		9	$	20,802	$	(278	)		17	$	183,968	$	(2,932	)		26	$	204,770	$	(3,210	)
December 31, 2015
U.S. government-sponsored entities		3	$	39,843	$	(173	)		1	$	14,778	$	(222	)		4	$	54,621	$	(395	)
Residential mortgage-backed securities:
Agency mortgage-backed securities		17		212,024		(1,159	)		1		917		(17	)		18		212,941		(1,176	)
Agency collateralized mortgage obligations		11		150,593		(1,434	)		14		160,716		(6,223	)		25		311,309		(7,657	)
Commercial mortgage-backed securities		3		46,278		(259	)		—		—		—			3		46,278		(259	)
States of the U.S. and political subdivisions		9		17,616		(101	)		—		—		—			9		17,616		(101	)
		43	$	466,354	$	(3,126	)		16	$	176,411	$	(6,462	)		59	$	642,765	$	(9,588	)

The Corporation does not intend to sell the debt securities and it is not more likely than not that the Corporation will be required to sell the securities before recovery of their amortized cost basis.

Other-Than-Temporary Impairment

The Corporation evaluates its investment securities portfolio for other-than-temporary impairment (OTTI) on a quarterly basis. Impairment is assessed at the individual security level. The Corporation considers an investment security impaired if the fair value of the security is less than its cost or amortized cost basis. The following table presents a summary of the cumulative credit-related OTTI charges recognized as components of earnings for securities for which a portion of an OTTI is recognized in other comprehensive income:

	Equities		Total
For the Three Months Ended March 31, 2016
Beginning balance	$	27	$	27
Loss where impairment was not previously recognized		—		—
Additional loss where impairment was previously recognized		—		—
Reduction due to credit impaired securities sold		—		—
Ending balance	$	27	$	27
For the Three Months Ended March 31, 2015
Beginning balance	$	27	$	27
Loss where impairment was not previously recognized		—		—
Additional loss where impairment was previously recognized		—		—
Reduction due to credit impaired securities sold		—		—
Ending balance	$	27	$	27

The Corporation did not recognize any impairment losses on securities for the three months ended March 31, 2016 or 2015.

States of the U.S. and Political Subdivisions

The Corporation’s municipal bond portfolio with a carrying amount of $288,813 as of March 31, 2016 is highly rated with an average entity-specific rating of AA and 97.0% of the portfolio rated A or better. General obligation bonds comprise 99.8% of the portfolio. Geographically, municipal bonds support the Corporation’s primary footprint as 94.8% of the securities are from municipalities located throughout Pennsylvania, Ohio and Maryland. The average holding size of the securities in the municipal bond portfolio is $1,730. In addition to the strong stand-alone ratings, 81.0% of the municipalities have some formal credit enhancement insurance that strengthens the creditworthiness of their issue. Management also reviews the credit profile of each issuer on a quarterly basis.

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Loans and Leases

3 Months Ended

Mar. 31, 2016

Receivables [Abstract]

Loans and Leases

5. LOANS AND LEASES

Following is a summary of loans and leases, net of unearned income:

	Originated Loans		Acquired Loans		Total Loans and Leases
March 31, 2016
Commercial real estate	$	3,605,301	$	1,648,359	$	5,253,660
Commercial and industrial		2,574,321		471,946		3,046,267
Commercial leases		202,605		—		202,605
Total commercial loans and leases		6,382,227		2,120,305		8,502,532
Direct installment		1,686,037		104,765		1,790,802
Residential mortgages		1,105,680		425,699		1,531,379
Indirect installment		1,025,413		314		1,025,727
Consumer lines of credit		1,034,681		226,812		1,261,493
Other		53,666		—		53,666
	$	11,287,704	$	2,877,895	$	14,165,599

	Originated Loans		Acquired Loans		Total Loans and Leases
December 31, 2015
Commercial real estate	$	3,531,146	$	577,910	$	4,109,056
Commercial and industrial		2,534,351		67,371		2,601,722
Commercial leases		204,553		—		204,553
Total commercial loans and leases		6,270,050		645,281		6,915,331
Direct installment		1,660,717		45,919		1,706,636
Residential mortgages		1,044,689		351,282		1,395,971
Indirect installment		996,175		554		996,729
Consumer lines of credit		1,021,830		115,425		1,137,255
Other		38,518		—		38,518
	$	11,031,979	$	1,158,461	$	12,190,440

Commercial real estate includes both owner-occupied and non-owner-occupied loans secured by commercial properties. Commercial and industrial includes loans to businesses that are not secured by real estate. Commercial leases are made for new or used equipment. Direct installment is comprised of fixed-rate, closed-end consumer loans for personal, family or household use, such as home equity loans and automobile loans. Residential mortgages consist of conventional and jumbo mortgage loans for non-commercial properties. Indirect installment is comprised of loans originated by third parties and underwritten by the Corporation, primarily automobile loans. Consumer lines of credit include home equity lines of credit (HELOC) and consumer lines of credit that are either unsecured or secured by collateral other than home equity. Other is comprised primarily of credit cards, mezzanine loans and student loans.

The loan and lease portfolio consists principally of loans to individuals and small- and medium-sized businesses within the Corporation’s primary market area of Pennsylvania, eastern Ohio, Maryland and northern West Virginia. The total loan portfolio also contains consumer finance loans to individuals in Pennsylvania, Ohio, Tennessee and Kentucky, which totaled $180,889 or 1.3% of total loans and leases at March 31, 2016, compared to $186,162 or 1.5% of total loans and leases at December 31, 2015. Due to the relative size of the consumer finance loan portfolio, these loans are not segregated from other consumer loans.

As of March 31, 2016, 38.2% of the commercial real estate loans were owner-occupied, while the remaining 61.8% were non-owner-occupied, compared to 38.1% and 61.9%, respectively, as of December 31, 2015. As of March 31, 2016 and December 31, 2015, the Corporation had commercial construction loans of $458,388 and $352,322, respectively, representing 3.2% and 2.9% of total loans and leases at those respective dates.

Acquired Loans

All acquired loans were initially recorded at fair value at the acquisition date. The outstanding balance and the carrying amount of acquired loans included in the consolidated balance sheet are as follows:

	March 31, 2016		December 31, 2015
Accounted for under ASC 310-30:
Outstanding balance	$	2,849,661	$	1,258,418
Carrying amount		2,485,752		1,011,139
Accounted for under ASC 310-20:
Outstanding balance		403,252		146,161
Carrying amount		386,564		140,595
Total acquired loans:
Outstanding balance		3,252,913		1,404,579
Carrying amount		2,872,316		1,151,734

The carrying amount of purchased credit impaired loans included in the table above totaled $17,161 at March 31, 2016 and $5,940 at December 31, 2015, representing less than 1% of the carrying amount of total acquired loans as of each date.

The following table provides changes in accretable yield for all acquired loans accounted for under ASC 310-30. Loans accounted for under ASC 310-20 are not included in this table.

	Three Months Ended March 31,
	2016			2015
Balance at beginning of period	$	256,120		$	331,899
Acquisitions		284,092			—
Reduction due to unexpected early payoffs		(9,375	)		(11,909	)
Reclass from non-accretable difference		10,494			7,676
Disposals/transfers		(260	)		(118	)
Accretion		(13,204	)		(16,264	)
Balance at end of period	$	527,867		$	311,284

The following table reflects amounts at acquisition for all purchased loans subject to ASC 310-30 (impaired and non-impaired) acquired from METR.

	Acquired Impaired Loans			Acquired Performing Loans			Total
Contractually required cash flows at acquisition	$	99,611		$	2,074,623		$	2,174,234
Non-accretable difference (expected losses and foregone interest)		(52,995	)		(248,666	)		(301,661	)
Cash flows expected to be collected at acquisition		46,616			1,825,957			1,872,573
Accretable yield		(1,063	)		(283,029	)		(284,092	)
Basis in acquired loans at acquisition	$	45,553		$	1,542,928		$	1,588,481

In addition, loans purchased in the METR acquisition that were not subject to ASC 310-30 had the following balances at the date of acquisition: fair value of $273,966; unpaid principal balance of $296,484; and contractual cash flows not expected to be collected of $98,021.

Credit Quality

Management monitors the credit quality of the Corporation’s loan and lease portfolio on an ongoing basis. Measurement of delinquency and past due status is based on the contractual terms of each loan.

Non-performing loans include non-accrual loans and non-performing troubled debt restructurings (TDRs). Past due loans are reviewed on a monthly basis to identify loans for non-accrual status. The Corporation places a loan on non-accrual status and discontinues interest accruals on originated loans generally when principal or interest is due and has remained unpaid for a certain number of days or when the principal and interest is deemed uncollectible, unless the loan is both well secured and in the process of collection. Commercial loans are placed on non-accrual at 90 days, installment loans are placed on non-accrual at 120 days and residential mortgages and consumer lines of credit are generally placed on non-accrual at 180 days. When a loan is placed on non-accrual status, all unpaid interest is reversed. Non-accrual loans may not be restored to accrual status until all delinquent principal and interest have been paid and the ultimate ability to collect the remaining principal and interest is reasonably assured. TDRs are loans in which the borrower has been granted a concession on the interest rate or the original repayment terms due to financial distress.

Following is a summary of non-performing assets:

	March 31, 2016			December 31, 2015
Non-accrual loans	$	63,036		$	49,897
Troubled debt restructurings		21,453			22,028
Total non-performing loans		84,489			71,925
Other real estate owned (OREO)		50,526			38,918
Total non-performing assets	$	135,015		$	110,843
Asset quality ratios:
Non-performing loans as a percent of total loans and leases		0.60	%		0.59	%
Non-performing loans + OREO as a percent of total loans and leases + OREO		0.95	%		0.91	%
Non-performing assets as a percent of total assets		0.66	%		0.63	%

The carrying value of residential OREO held as a result of obtaining physical possession upon completion of a foreclosure or through completion of a deed in lieu of foreclosure totaled $4,590 at March 31, 2016 and $5,219 at December 31, 2015. The recorded investment of consumer mortgage loans secured by residential real estate properties for which formal foreclosure proceedings are in process at March 31, 2016 and December 31, 2015 totaled $10,174 and $11,725, respectively.

The following tables provide an analysis of the aging of the Corporation’s past due loans by class, segregated by loans and leases originated and loans acquired:

	30-89 Days Past Due		³ 90 Days Past Due and Still Accruing		Non- Accrual		Total Past Due		Current		Total Loans and Leases
Originated Loans and Leases
March 31, 2016
Commercial real estate	$	9,342	$	1	$	24,083	$	33,426	$	3,571,875	$	3,605,301
Commercial and industrial		4,653		3		24,627		29,283		2,545,038		2,574,321
Commercial leases		1,422		15		894		2,331		200,274		202,605
Total commercial loans and leases		15,417		19		49,604		65,040		6,317,187		6,382,227
Direct installment		6,845		3,463		5,646		15,954		1,670,083		1,686,037
Residential mortgages		7,398		1,545		3,446		12,389		1,093,291		1,105,680
Indirect installment		5,479		369		1,347		7,195		1,018,218		1,025,413
Consumer lines of credit		1,523		661		1,954		4,138		1,030,543		1,034,681
Other		49		63		—		112		53,554		53,666
	$	36,711	$	6,120	$	61,997	$	104,828	$	11,182,876	$	11,287,704
December 31, 2015
Commercial real estate	$	11,006	$	1	$	23,503	$	34,510	$	3,496,636	$	3,531,146
Commercial and industrial		5,409		3		14,382		19,794		2,514,557		2,534,351
Commercial leases		924		—		659		1,583		202,970		204,553
Total commercial loans and leases		17,339		4		38,544		55,887		6,214,163		6,270,050
Direct installment		9,254		3,813		4,806		17,873		1,642,844		1,660,717
Residential mortgages		8,135		1,470		2,882		12,487		1,032,202		1,044,689
Indirect installment		9,472		379		1,361		11,212		984,963		996,175
Consumer lines of credit		2,410		1,189		1,181		4,780		1,017,050		1,021,830
Other		73		169		—		242		38,276		38,518
	$	46,683	$	7,024	$	48,774	$	102,481	$	10,929,498	$	11,031,979

	30-89 Days Past Due		³ 90 Days Past Due and Still Accruing		Non- Accrual		Total Past Due (1) (2)		Current		Discount			Total Loans
Acquired Loans
March 31, 2016
Commercial real estate	$	27,329	$	23,563	$	740	$	51,632	$	1,695,949	$	(99,222	)	$	1,648,359
Commercial and industrial		1,879		6,596		152		8,627		499,764		(36,445	)		471,946
Total commercial loans		29,208		30,159		892		60,259		2,195,713		(135,667	)		2,120,305
Direct installment		2,855		958		—		3,813		97,964		2,988			104,765
Residential mortgages		11,010		15,498		—		26,508		436,528		(37,337	)		425,699
Indirect installment		—		6		—		6		413		(105	)		314
Consumer lines of credit		1,578		1,292		147		3,017		228,682		(4,887	)		226,812
	$	44,651	$	47,913	$	1,039	$	93,603	$	2,959,300	$	(175,008	)	$	2,877,895
December 31, 2015
Commercial real estate	$	6,399	$	12,752	$	931	$	20,082	$	593,128	$	(35,300	)	$	577,910
Commercial and industrial		1,065		616		103		1,784		72,037		(6,450	)		67,371
Total commercial loans		7,464		13,368		1,034		21,866		665,165		(41,750	)		645,281
Direct installment		837		659		—		1,496		43,596		827			45,919
Residential mortgages		5,871		15,136		—		21,007		366,742		(36,467	)		351,282
Indirect installment		32		9		—		41		571		(58	)		554
Consumer lines of credit		830		546		89		1,465		117,443		(3,483	)		115,425
	$	15,034	$	29,718	$	1,123	$	45,875	$	1,193,517	$	(80,931	)	$	1,158,461

(1) Past due information for acquired loans is based on the contractual balance outstanding at March 31, 2016 and December 31, 2015.

(2) Acquired loans are considered performing upon acquisition, regardless of whether the customer is contractually delinquent, as long as the Corporation can reasonably estimate the timing and amount of expected cash flows on such loans. In these instances, the Corporation does not consider acquired contractually delinquent loans to be non-accrual or non-performing and continues to recognize interest income on these loans using the accretion method. Acquired loans are considered non-accrual or non-performing when, due to credit deterioration or other factors, the Corporation determines it is no longer able to reasonably estimate the timing and amount of expected cash flows on such loans. The Corporation does not recognize interest income on acquired loans considered non-accrual or non-performing.

The Corporation utilizes the following categories to monitor credit quality within its commercial loan and lease portfolio:

Rating Category	Definition
Pass	in general, the condition and performance of the borrower is satisfactory or better
Special Mention	in general, the condition of the borrower has deteriorated, requiring an increased level of monitoring
Substandard	in general, the condition and performance of the borrower has significantly deteriorated and could further deteriorate if deficiencies are not corrected
Doubtful	in general, the condition of the borrower has significantly deteriorated and the collection in full of both principal and interest is highly questionable or improbable

The use of these internally assigned credit quality categories within the commercial loan and lease portfolio permits management’s use of transition matrices to estimate a quantitative portion of credit risk. The Corporation’s internal credit risk grading system is based on past experiences with similarly graded loans and leases and conforms with regulatory categories. In general, loan and lease risk ratings within each category are reviewed on an ongoing basis according to the Corporation’s policy for each class of loans and leases. Each quarter, management analyzes the resulting ratings, as well as other external statistics and factors such as delinquency, to track the migration performance of the commercial loan and lease portfolio. Loans and leases within the Pass credit category or that migrate toward the Pass credit category generally have a lower risk of loss compared to loans and leases that migrate toward the Substandard or Doubtful credit categories. Accordingly, management applies higher risk factors to Substandard and Doubtful credit categories.

The following tables present a summary of the Corporation’s commercial loans and leases by credit quality category, segregated by loans and leases originated and loans acquired:

	Originated Commercial Loan and Lease Credit Quality Categories
	Pass		Special Mention		Substandard		Doubtful		Total
Originated Loans and Leases
March 31, 2016
Commercial real estate	$	3,445,547	$	97,426	$	61,928	$	400	$	3,605,301
Commercial and industrial		2,346,483		114,408		107,818		5,612		2,574,321
Commercial leases		194,947		3,121		4,537		—		202,605
	$	5,986,977	$	214,955	$	174,283	$	6,012	$	6,382,227
December 31, 2015
Commercial real estate	$	3,416,527	$	52,887	$	61,411	$	321	$	3,531,146
Commercial and industrial		2,335,103		109,539		87,380		2,329		2,534,351
Commercial leases		198,207		2,447		3,899		—		204,553
	$	5,949,837	$	164,873	$	152,690	$	2,650	$	6,270,050
Acquired Loans
March 31, 2016
Commercial real estate	$	1,331,863	$	156,709	$	152,929	$	6,858	$	1,648,359
Commercial and industrial		369,178		23,214		77,897		1,657		471,946
	$	1,701,041	$	179,923	$	230,826	$	8,515	$	2,120,305
December 31, 2015
Commercial real estate	$	464,162	$	47,619	$	66,129		—	$	577,910
Commercial and industrial		56,446		3,182		7,743		—		67,371
	$	520,608	$	50,801	$	73,872		—	$	645,281

Credit quality information for acquired loans is based on the contractual balance outstanding at March 31, 2016 and December 31, 2015. The increase in acquired loans in 2016 relates to the METR acquisition completed on February 13, 2016.

The Corporation uses delinquency transition matrices within the consumer and other loan classes to enable management to estimate a quantitative portion of credit risk. Each month, management analyzes payment and volume activity, FICO scores and other external factors such as unemployment, to determine how consumer loans are performing.

Following is a table showing originated consumer loans by payment status:

	Originated Consumer Loan Credit Quality by Payment Status
	Performing		Non- Performing		Total
March 31, 2016
Direct installment	$	1,671,896	$	14,141	$	1,686,037
Residential mortgages		1,092,329		13,351		1,105,680
Indirect installment		1,023,909		1,504		1,025,413
Consumer lines of credit		1,031,798		2,883		1,034,681
Other		53,666		—		53,666
	$	4,873,598	$	31,879	$	4,905,477

	Originated Consumer Loan Credit Quality by Payment Status
	Performing		Non- Performing		Total
December 31, 2015
Direct installment	$	1,646,925	$	13,792	$	1,660,717
Residential mortgages		1,031,926		12,763		1,044,689
Indirect installment		994,661		1,514		996,175
Consumer lines of credit		1,019,783		2,047		1,021,830
Other		38,518		—		38,518
	$	4,731,813	$	30,116	$	4,761,929

Loans and leases are designated as impaired when, in the opinion of management, based on current information and events, the collection of principal and interest in accordance with the loan and lease contract is doubtful. Typically, the Corporation does not consider loans and leases for impairment unless a sustained period of delinquency (i.e., 90-plus days) is noted or there are subsequent events that impact repayment probability (i.e., negative financial trends, bankruptcy filings, imminent foreclosure proceedings, etc.). Impairment is evaluated in the aggregate for consumer installment loans, residential mortgages, consumer lines of credit and commercial loan and lease relationships less than $500 based on loan and lease segment loss given default. For commercial loan relationships greater than or equal to $500, a specific valuation allowance is allocated, if necessary, so that the loan is reported net, at the present value of estimated future cash flows using a market interest rate or at the fair value of collateral if repayment is expected solely from the collateral. Consistent with the Corporation’s existing method of income recognition for loans and leases, interest on impaired loans, except those classified as non-accrual, is recognized as income using the accrual method. Impaired loans, or portions thereof, are charged off when deemed uncollectible.

Following is a summary of information pertaining to originated loans and leases considered to be impaired, by class of loan and lease:

	Unpaid Contractual Principal Balance		Recorded Investment With No Specific Reserve		Recorded Investment With Specific Reserve		Total Recorded Investment		Specific Reserve		Average Recorded Investment
At or for the Three Months Ended March 31, 2016
Commercial real estate	$	33,434	$	24,035	$	1,520	$	25,555	$	400	$	25,374
Commercial and industrial		25,965		12,042		12,479		24,521		5,612		19,620
Commercial leases		894		894		—		894		—		—
Total commercial loans and leases		60,293		36,971		13,999		50,970		6,012		44,994
Direct installment		15,135		14,141		—		14,141		—		13,966
Residential mortgages		13,881		13,351		—		13,351		—		13,058
Indirect installment		3,667		1,504		—		1,504		—		1,509
Consumer lines of credit		3,436		2,883		—		2,883		—		2,465
	$	96,412	$	68,850	$	13,999	$	82,849	$	6,012	$	75,992
At or for the Year Ended December 31, 2015
Commercial real estate	$	33,780	$	24,423	$	772	$	25,195	$	321	$	26,143
Commercial and industrial		15,860		9,176		5,543		14,719		2,329		12,298
Commercial leases		659		659		—		659		—		747
Total commercial loans and leases		50,299		34,258		6,315		40,573		2,650		39,188
Direct installment		14,679		13,792		—		13,792		—		13,267
Residential mortgages		13,394		12,763		—		12,763		—		12,896
Indirect installment		3,745		1,514		—		1,514		—		1,401
Consumer lines of credit		2,408		2,047		—		2,047		—		2,198
	$	84,525	$	64,374	$	6,315	$	70,689	$	2,650	$	68,950

Interest income is generally no longer recognized once a loan becomes impaired.

These tables do not reflect the additional allowance for credit losses relating to acquired loans in the following pools and categories: commercial real estate of $2,821; commercial and industrial of $499; direct installment of $1,322; residential mortgages of $487; indirect installment of $222; and consumer lines of credit of $229, totaling $5,580 at March 31, 2016 and commercial real estate of $3,073; commercial and industrial of $695; direct installment of $1,557; residential mortgages of $659; indirect installment of $221; and consumer lines of credit of $522, totaling $6,727 at December 31, 2015.

Troubled Debt Restructurings

TDRs are loans whose contractual terms have been modified in a manner that grants a concession to a borrower experiencing financial difficulties. TDRs typically result from loss mitigation activities and could include the extension of a maturity date, interest rate reduction, principal forgiveness, deferral or decrease in payments for a period of time and other actions intended to minimize the economic loss and to avoid foreclosure or repossession of collateral.

Following is a summary of the payment status of originated TDRs:

	March 31, 2016		December 31, 2015
Accruing:
Performing	$	16,508	$	15,165
Non-performing		21,453		22,028
Non-accrual		11,953		8,307
	$	49,914	$	45,500

TDRs that are accruing and performing include loans that met the criteria for non-accrual of interest prior to restructuring for which the Corporation can reasonably estimate the timing and amount of the expected cash flows on such loans and for which the Corporation expects to fully collect the new carrying value of the loans. During the three months ended March 31, 2016, the Corporation returned to performing status $2,488 in restructured residential mortgage loans that have consistently met their modified obligations for more than six months. TDRs that are accruing and non-performing are comprised of consumer loans that have not demonstrated a consistent repayment pattern on the modified terms for more than six months, however it is expected that the Corporation will collect all future principal and interest payments. TDRs that are on non-accrual are not placed on accruing status until all delinquent principal and interest have been paid and the ultimate collectability of the remaining principal and interest is reasonably assured. Some loan modifications classified as TDRs may not ultimately result in the full collection of principal and interest, as modified, and may result in potential incremental losses which are factored into the allowance for credit losses.

Excluding purchased impaired loans, commercial loans over $500 whose terms have been modified in a TDR are generally placed on non-accrual, individually analyzed and measured for estimated impairment based on the fair value of the underlying collateral. The Corporation’s allowance for credit losses included specific reserves for commercial TDRs of $298 and $300 at March 31, 2016 and December 31, 2015, respectively, and pooled reserves for individual loans under $500 of $865 and $929 for those same respective periods, based on loan segment loss given default. Upon default, the amount of the recorded investment in the TDR in excess of the fair value of the collateral, less estimated selling costs, is generally considered a confirmed loss and is charged-off against the allowance for credit losses.

All other classes of loans, which are primarily secured by residential properties, whose terms have been modified in a TDR are pooled and measured for estimated impairment based on the expected net present value of the estimated future cash flows of the pool. The Corporation’s allowance for credit losses included pooled reserves for these classes of loans of $3,405 and $3,515 at March 31, 2016 and December 31, 2015, respectively. Upon default of an individual loan, the Corporation’s charge-off policy is followed accordingly for that class of loan.

The majority of TDRs are the result of interest rate concessions for a limited period of time. Following is a summary of originated loans, by class, that have been restructured:

	Three Months Ended March 31, 2016						Three Months Ended March 31, 2015
	Number of Contracts		Pre- Modification Outstanding Recorded Investment		Post- Modification Outstanding Recorded Investment		Number of Contracts		Pre- Modification Outstanding Recorded Investment		Post- Modification Outstanding Recorded Investment
Commercial real estate		4	$	778	$	760		2	$	312	$	196
Commercial and industrial		2		5,565		3,279		—		—		—
Total commercial loans		6		6,343		4,039		2		312		196
Direct installment		145		1,991		1,961		131		1,526		1,484
Residential mortgages		18		968		951		14		581		631
Indirect installment		3		11		12		5		16		16
Consumer lines of credit		20		243		238		16		270		270
		192	$	9,556	$	7,201		168	$	2,705	$	2,597

Following is a summary of originated TDRs, by class of loans and leases, for which there was a payment default, excluding loans that were either charged-off or cured by period end. Default occurs when a loan is 90 days or more past due and is within 12 months of restructuring.

	Three Months Ended March 31, 2016 (1)				Three Months Ended March 31, 2015 (1)
	Number of Contracts		Recorded Investment		Number of Contracts		Recorded Investment
Commercial real estate		—	$	—		—	$	—
Commercial and industrial		—		—		—		—
Total commercial loans		—		—		—		—
Direct installment		28		175		37		105
Residential mortgages		1		50		2		102
Indirect installment		4		5		3		4
Consumer lines of credit		1		10		1		92
		34	$	240		43	$	303

(1) The recorded investment is as of period end.

6. ALLOWANCE FOR CREDIT LOSSES

The allowance for credit losses addresses credit losses inherent in the existing loan and lease portfolio and is presented as a reserve against loans and leases on the consolidated balance sheet. Loan and lease losses are charged off against the allowance for credit losses, with recoveries of amounts previously charged off credited to the allowance for credit losses. Provisions for credit losses are charged to operations based on management’s periodic evaluation of the adequacy of the allowance for credit losses.

Following is a summary of changes in the allowance for credit losses, by loan and lease class:

	Balance at Beginning of Period		Charge- Offs			Recoveries		Net Charge- Offs			Provision for credit losses			Balance at End of Period
Three Months Ended March 31, 2016
Commercial real estate	$	41,741	$	(1,369	)	$	597	$	(772	)	$	2,929		$	43,898
Commercial and industrial		41,023		(298	)		190		(108	)		6,948			47,863
Commercial leases		2,541		(114	)		14		(100	)		377			2,818
Total commercial loans and leases		85,305		(1,781	)		801		(980	)		10,254			94,579
Direct installment		21,587		(2,667	)		454		(2,213	)		1,351			20,725
Residential mortgages		7,909		(85	)		19		(66	)		(33	)		7,810
Indirect installment		9,889		(1,942	)		262		(1,680	)		856			9,065
Consumer lines of credit		9,582		(474	)		56		(418	)		(197	)		8,967
Other		1,013		(554	)		6		(548	)		609			1,074
Total allowance on originated loans and leases		135,285		(7,503	)		1,598		(5,905	)		12,840			142,220
Purchased credit-impaired loans		834		(160	)		—		(160	)		30			704
Other acquired loans		5,893		(221	)		306		85			(1,102	)		4,876
Total allowance on acquired loans		6,727		(381	)		306		(75	)		(1,072	)		5,580
Total allowance	$	142,012	$	(7,884	)	$	1,904	$	(5,980	)	$	11,768		$	147,800
Three Months Ended March 31, 2015
Commercial real estate	$	37,588	$	(1,001	)	$	209	$	(792	)	$	1,996		$	38,792
Commercial and industrial		32,645		(684	)		120		(564	)		722			32,803
Commercial leases		2,398		(93	)		10		(83	)		261			2,576
Total commercial loans and leases		72,631		(1,778	)		339		(1,439	)		2,979			74,171
Direct installment		20,538		(2,433	)		269		(2,164	)		2,830			21,204
Residential mortgages		8,024		(511	)		15		(496	)		943			8,471
Indirect installment		7,504		(1,280	)		302		(978	)		1,131			7,657
Consumer lines of credit		8,496		(410	)		40		(370	)		764			8,890
Other		759		(335	)		11		(324	)		419			854
Total allowance on originated loans and leases		117,952		(6,747	)		976		(5,771	)		9,066			121,247
Purchased credit-impaired loans		660		(64	)		19		(45	)		6			621
Other acquired loans		7,314		(77	)		330		253			(936	)		6,631
Total allowance on acquired loans		7,974		(141	)		349		208			(930	)		7,252
Total allowance	$	125,926	$	(6,888	)	$	1,325	$	(5,563	)	$	8,136		$	128,499

Following is a summary of the individual and collective originated allowance for credit losses and corresponding loan and lease balances by class:

	Originated Allowance				Originated Loans and Leases Outstanding
	Individually Evaluated for Impairment		Collectively Evaluated for Impairment		Loans and Leases		Individually Evaluated for Impairment		Collectively Evaluated for Impairment
March 31, 2016
Commercial real estate	$	400	$	43,498	$	3,605,301	$	14,260	$	3,591,041
Commercial and industrial		5,612		42,251		2,574,321		19,679		2,554,642
Commercial leases		—		2,818		202,605		—		202,605
Total commercial loans and leases		6,012		88,567		6,382,227		33,939		6,348,288
Direct installment		—		20,725		1,686,037		—		1,686,037
Residential mortgages		—		7,810		1,105,680		—		1,105,680
Indirect installment		—		9,065		1,025,413		—		1,025,413
Consumer lines of credit		—		8,967		1,034,681		—		1,034,681
Other		—		1,074		53,666		—		53,666
	$	6,012	$	136,208	$	11,287,704	$	33,939	$	11,253,765
December 31, 2015
Commercial real estate	$	321	$	41,420	$	3,531,146	$	12,904	$	3,518,242
Commercial and industrial		2,329		38,694		2,534,351		10,802		2,523,549
Commercial leases		—		2,541		204,553		—		204,553
Total commercial loans and leases		2,650		82,655		6,270,050		23,706		6,246,344
Direct installment		—		21,587		1,660,717		—		1,660,717
Residential mortgages		—		7,909		1,044,689		—		1,044,689
Indirect installment		—		9,889		996,175		—		996,175
Consumer lines of credit		—		9,582		1,021,830		—		1,021,830
Other		—		1,013		38,518		—		38,518
	$	2,650	$	132,635	$	11,031,979	$	23,706	$	11,008,273

XML

Allowance for Credit Losses

3 Months Ended

Mar. 31, 2016

Receivables [Abstract]

Allowance for Credit Losses

6. ALLOWANCE FOR CREDIT LOSSES

The allowance for credit losses addresses credit losses inherent in the existing loan and lease portfolio and is presented as a reserve against loans and leases on the consolidated balance sheet. Loan and lease losses are charged off against the allowance for credit losses, with recoveries of amounts previously charged off credited to the allowance for credit losses. Provisions for credit losses are charged to operations based on management’s periodic evaluation of the adequacy of the allowance for credit losses.

Following is a summary of changes in the allowance for credit losses, by loan and lease class:

	Balance at Beginning of Period		Charge- Offs			Recoveries		Net Charge- Offs			Provision for credit losses			Balance at End of Period
Three Months Ended March 31, 2016
Commercial real estate	$	41,741	$	(1,369	)	$	597	$	(772	)	$	2,929		$	43,898
Commercial and industrial		41,023		(298	)		190		(108	)		6,948			47,863
Commercial leases		2,541		(114	)		14		(100	)		377			2,818
Total commercial loans and leases		85,305		(1,781	)		801		(980	)		10,254			94,579
Direct installment		21,587		(2,667	)		454		(2,213	)		1,351			20,725
Residential mortgages		7,909		(85	)		19		(66	)		(33	)		7,810
Indirect installment		9,889		(1,942	)		262		(1,680	)		856			9,065
Consumer lines of credit		9,582		(474	)		56		(418	)		(197	)		8,967
Other		1,013		(554	)		6		(548	)		609			1,074
Total allowance on originated loans and leases		135,285		(7,503	)		1,598		(5,905	)		12,840			142,220
Purchased credit-impaired loans		834		(160	)		—		(160	)		30			704
Other acquired loans		5,893		(221	)		306		85			(1,102	)		4,876
Total allowance on acquired loans		6,727		(381	)		306		(75	)		(1,072	)		5,580
Total allowance	$	142,012	$	(7,884	)	$	1,904	$	(5,980	)	$	11,768		$	147,800
Three Months Ended March 31, 2015
Commercial real estate	$	37,588	$	(1,001	)	$	209	$	(792	)	$	1,996		$	38,792
Commercial and industrial		32,645		(684	)		120		(564	)		722			32,803
Commercial leases		2,398		(93	)		10		(83	)		261			2,576
Total commercial loans and leases		72,631		(1,778	)		339		(1,439	)		2,979			74,171
Direct installment		20,538		(2,433	)		269		(2,164	)		2,830			21,204
Residential mortgages		8,024		(511	)		15		(496	)		943			8,471
Indirect installment		7,504		(1,280	)		302		(978	)		1,131			7,657
Consumer lines of credit		8,496		(410	)		40		(370	)		764			8,890
Other		759		(335	)		11		(324	)		419			854
Total allowance on originated loans and leases		117,952		(6,747	)		976		(5,771	)		9,066			121,247
Purchased credit-impaired loans		660		(64	)		19		(45	)		6			621
Other acquired loans		7,314		(77	)		330		253			(936	)		6,631
Total allowance on acquired loans		7,974		(141	)		349		208			(930	)		7,252
Total allowance	$	125,926	$	(6,888	)	$	1,325	$	(5,563	)	$	8,136		$	128,499

Following is a summary of the individual and collective originated allowance for credit losses and corresponding loan and lease balances by class:

	Originated Allowance				Originated Loans and Leases Outstanding
	Individually Evaluated for Impairment		Collectively Evaluated for Impairment		Loans and Leases		Individually Evaluated for Impairment		Collectively Evaluated for Impairment
March 31, 2016
Commercial real estate	$	400	$	43,498	$	3,605,301	$	14,260	$	3,591,041
Commercial and industrial		5,612		42,251		2,574,321		19,679		2,554,642
Commercial leases		—		2,818		202,605		—		202,605
Total commercial loans and leases		6,012		88,567		6,382,227		33,939		6,348,288
Direct installment		—		20,725		1,686,037		—		1,686,037
Residential mortgages		—		7,810		1,105,680		—		1,105,680
Indirect installment		—		9,065		1,025,413		—		1,025,413
Consumer lines of credit		—		8,967		1,034,681		—		1,034,681
Other		—		1,074		53,666		—		53,666
	$	6,012	$	136,208	$	11,287,704	$	33,939	$	11,253,765
December 31, 2015
Commercial real estate	$	321	$	41,420	$	3,531,146	$	12,904	$	3,518,242
Commercial and industrial		2,329		38,694		2,534,351		10,802		2,523,549
Commercial leases		—		2,541		204,553		—		204,553
Total commercial loans and leases		2,650		82,655		6,270,050		23,706		6,246,344
Direct installment		—		21,587		1,660,717		—		1,660,717
Residential mortgages		—		7,909		1,044,689		—		1,044,689
Indirect installment		—		9,889		996,175		—		996,175
Consumer lines of credit		—		9,582		1,021,830		—		1,021,830
Other		—		1,013		38,518		—		38,518
	$	2,650	$	132,635	$	11,031,979	$	23,706	$	11,008,273

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Borrowings

3 Months Ended

Mar. 31, 2016

Debt Disclosure [Abstract]

Borrowings

7. BORROWINGS

Following is a summary of short-term borrowings:

	March 31, 2016		December 31, 2015
Securities sold under repurchase agreements	$	297,562	$	266,732
Federal Home Loan Bank advances		490,000		1,090,000
Federal funds purchased		652,000		568,000
Subordinated notes		124,326		124,164
	$	1,563,888	$	2,048,896

Securities sold under repurchase agreements is comprised of customer repurchase agreements, which are sweep accounts with next day maturities utilized by larger commercial customers to earn interest on their funds. Securities are pledged to these customers in an amount equal to the outstanding balance.

Following is a summary of long-term borrowings:

	March 31, 2016		December 31, 2015
Federal Home Loan Bank advances	$	425,147	$	400,017
Subordinated notes		85,206		84,668
Junior subordinated debt		48,572		58,298
Other subordinated debt		98,520		98,497
	$	657,445	$	641,480

The Corporation’s banking affiliate has available credit with the FHLB of $5,543,082 of which $915,147 was used as of March 31, 2016. These advances are secured by loans collateralized by residential mortgages, HELOCs, commercial real estate and FHLB stock and are scheduled to mature in various amounts periodically through the year 2021. Effective interest rates paid on the long-term advances ranged from 0.76% to 4.19% for both the three months ended March 31, 2016 and the year ended December 31, 2015.

The junior subordinated debt is comprised of debt securities issued by the Corporation in relation to its two unconsolidated subsidiary trusts (collectively, the Trusts): F.N.B. Statutory Trust II and Omega Financial Capital Trust I. One hundred percent of the common equity of each Trust is owned by the Corporation. The Trusts were formed for the purpose of issuing Corporation-obligated mandatorily redeemable capital securities, or trust preferred securities (TPS) to third-party investors. The proceeds from the sale of TPS and the issuance of common equity by the Trusts were invested in junior subordinated debt securities issued by the Corporation, which are the sole assets of each Trust. Since third-party investors are the primary beneficiaries, the Trusts are not consolidated in the Corporation’s financial statements. The Trusts pay dividends on the TPS at the same rate as the distributions paid by the Corporation on the junior subordinated debt held by the Trusts. Omega Financial Capital Trust I was assumed as a result of an acquisition.

Distributions on the junior subordinated debt issued to the Trusts are recorded as interest expense by the Corporation. The TPS are subject to mandatory redemption, in whole or in part, upon repayment of the junior subordinated debt. The TPS are eligible for redemption, at any time, at the Corporation’s discretion. Under capital guidelines, beginning in 2016, the entire balance of TPS is included in tier 2 capital. The Corporation has entered into agreements which, when taken collectively, fully and unconditionally guarantee the obligations under the TPS subject to the terms of each of the guarantees.

During 2016, the Corporation redeemed $10,000 of the TPS issued by Omega Financial Capital Trust I.

The following table provides information relating to the Trusts as of March 31, 2016:

	Trust Preferred Securities		Common Securities		Junior Subordinated Debt		Stated Maturity Date		Interest Rate
F.N.B. Statutory Trust II	$	21,500	$	665	$	22,165		6/15/36		2.28	%	Variable; 3-month LIBOR + 165 basis points (bps)
Omega Financial Capital Trust I		26,000		1,114		26,407		10/18/34		2.81	%	Variable; 3-month LIBOR + 219 bps
	$	47,500	$	1,779	$	48,572

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Derivative and Hedging Activities

3 Months Ended

Mar. 31, 2016

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative and Hedging Activities

8. DERIVATIVE AND HEDGING ACTIVITIES

The Corporation is exposed to certain risks arising from both its business operations and economic conditions. The Corporation principally manages its exposures to a wide variety of business and operational risks through management of its core business activities. The Corporation manages economic risks, including interest rate risk, primarily by managing the amount, source, and duration of its assets and liabilities, and through the use of derivative instruments. Derivative instruments are used to reduce the effects that changes in interest rates may have on net income and cash flows. The Corporation also uses derivative instruments to facilitate transactions on behalf of its customers.

All derivatives are carried on the consolidated balance sheet at fair value and do not take into account the effects of master netting arrangements the Corporation has with other financial institutions. Credit risk is included in the determination of the estimated fair value of derivatives. Derivative assets are classified in the consolidated balance sheet under other assets and derivative liabilities are classified in the consolidated balance sheet under other liabilities. Changes in fair value are recognized in earnings except for certain changes related to derivative instruments designated as part of a cash flow hedging relationship.

The following table presents notional amounts and gross fair values of all derivative assets and derivative liabilities held by the Corporation:

	March 31, 2016						December 31, 2015
	Notional		Fair Value				Notional		Fair Value
	Amount		Asset		Liability		Amount		Asset		Liability
Gross Derivatives
Subject to master netting arrangements:
Interest rate contracts – designated	$	250,000	$	7,859	$	1,341	$	250,000	$	3,178	$	962
Interest rate swaps – not designated		1,373,959		—		80,625		1,262,964		1		50,491
Equity contracts – not designated		1,180		34		—		1,180		18		—
Total subject to master netting arrangements		1,625,139		7,893		81,966		1,514,144		3,197		51,453
Not subject to master netting arrangements:
Interest rate swaps – not designated		1,373,959		80,091		—		1,262,964		49,998		1
Credit risk contracts – not designated		134,204		22		219		114,753		7		133
Equity contracts – not designated		1,180		—		34		1,180		—		18
Total not subject to master netting arrangements		1,509,343		80,113		253		1,378,897		50,005		152
	$	3,134,482	$	88,006	$	82,219	$	2,893,041	$	53,202	$	51,605

Derivatives Designated as Hedging Instruments under GAAP

Interest Rate Contracts. The Corporation entered into interest rate derivative agreements to modify the interest rate characteristics of certain commercial loans and one of its FHLB advances from variable rate to fixed rate in order to reduce the impact of changes in future cash flows due to market interest rate changes. These agreements are designated as cash flow hedges (i.e., hedging the exposure to variability in expected future cash flows). The effective portion of the derivative’s gain or loss is initially reported as a component of other comprehensive income and subsequently reclassified into earnings in the same line item associated with the forecasted transaction when the forecasted transaction affects earnings. The ineffective portion of the gain or loss is reported in earnings immediately.

The notional amount of these interest rate derivative agreements totaled $250,000 at both March 31, 2016 and December 31, 2015. Fair values included in other assets and other liabilities on the consolidated balance sheet applicable to these agreements amounted to $7,859 and $1,341, respectively, at March 31, 2016, and $3,178 and $962, respectively, at December 31, 2015. For the three months ended March 31, 2016, the amount reclassified from accumulated other comprehensive income (AOCI) to interest income and interest expense totaled $687 ($446 net of tax) and $150 ($97 net of tax), respectively.

As of March 31, 2016, the maximum length of time over which forecasted interest cash flows are hedged is seven years. In the twelve months that follow March 31, 2016, the Corporation expects to reclassify from the amount currently reported in AOCI net derivative gains of $1,979 ($1,286 net of tax), in association with interest on the hedged loans and FHLB advance. This amount could differ from amounts actually recognized due to changes in interest rates, hedge de-designations, and the addition of other hedges subsequent to March 31, 2016.

There were no components of derivative gains or losses excluded from the assessment of hedge effectiveness related to these cash flow hedges. For the three months ended March 31, 2016 and 2015, there was no hedge ineffectiveness. Also, during the three months ended March 31, 2016 and 2015, there were no gains or losses from cash flow hedge derivatives reclassified to earnings because it became probable that the original forecasted transactions would not occur.

Derivatives Not Designated as Hedging Instruments under GAAP

Interest Rate Swaps. The Corporation enters into interest rate swap agreements to meet the financing, interest rate and equity risk management needs of qualifying commercial loan customers. These agreements provide the customer the ability to convert from variable to fixed interest rates. The credit risk associated with derivatives executed with customers is essentially the same as that involved in extending loans and is subject to normal credit policies and monitoring. Swap derivative transactions with customers are not subject to enforceable master netting arrangements and are generally secured by rights to non-financial collateral, such as real and personal property.

The Corporation enters into positions with a derivative counterparty in order to offset its exposure on the fixed components of the customer interest rate swap agreements. The Corporation seeks to minimize counterparty credit risk by entering into transactions only with high-quality financial dealer institutions. These arrangements meet the definition of derivatives, but are not designated as hedging instruments under ASC 815, Derivatives and Hedging. Substantially all contracts with dealers that require central clearing (generally, transactions since June 10, 2014) are novated to a SEC registered clearing agency who becomes the Corporation’s counterparty.

The notional amount of these customer derivative agreements and the offsetting derivative counterparty positions each totaled $1,373,959 at March 31, 2016. Fair values included in other assets and other liabilities on the consolidated balance sheet applicable to these agreements amounted to $80,091 and $80,625, respectively, at March 31, 2016. At December 31, 2015, the notional amount of these customer derivative agreements and the offsetting derivative counterparty positions each totaled $1,262,964. At December 31, 2015, fair values included in other assets and other liabilities on the consolidated balance sheet amounted to $49,999 and $50,492, respectively.

The interest rate swap agreement with the loan customer and with the counterparty is reported at fair value in other assets and other liabilities on the consolidated balance sheet with any resulting gain or loss recorded in current period earnings as other income or other expense.

Credit Risk Contracts. The Corporation purchases and sells credit protection under risk participation agreements to share with other counterparties some of the credit exposure related to interest rate derivative contracts or to take on credit exposure to generate revenue. The Corporation will make/receive payments under these agreements if a customer defaults on its obligation to perform under certain derivative swap contracts.

Risk participation agreements sold with notional amounts totaling $83,010 as of March 31, 2016 have remaining terms ranging from one to fourteen years. Under these agreements, the Corporation’s maximum exposure assuming a customer defaults on their obligation to perform under certain derivative swap contracts with third parties would be $219 at March 31, 2016 and $133 at December 31, 2015.

The fair values of risk participation agreements purchased and sold were not material at March 31, 2016 and December 31, 2015.

Counterparty Credit Risk

The Corporation is party to master netting arrangements with most of its swap derivative counterparties. Collateral, usually marketable securities and/or cash, is exchanged between the Corporation and its counterparties, and is generally subject to thresholds and transfer minimums. For swap transactions that require central clearing, the Corporation posts cash to its clearing agency. Collateral positions are valued daily, and adjustments to amounts received and pledged by the Corporation are made as appropriate to maintain proper collateralization for these transactions.

Certain master netting agreements contain provisions that, if violated, could cause the counterparties to request immediate settlement or demand full collateralization under the derivative instrument. If the Corporation had breached its agreements with its derivative counterparties it would be required to settle its obligations under the agreements at the termination value and would be required to pay an additional $1,894 and $1,333 as of March 31, 2016 and December 31, 2015, respectively, in excess of amounts previously posted as collateral with the respective counterparty.

The following table presents information about derivative assets and derivative liabilities that are subject to enforceable master netting arrangements as well as those not subject to enforceable master netting arrangements:

	Gross Amount		Gross Amounts Offset in the Balance Sheet		Net Amount Presented in the Balance Sheet
March 31, 2016
Derivative Assets
Subject to master netting arrangements:
Interest rate contracts
Designated	$	7,859		—	$	7,859
Not designated		—		—		—
Equity contracts – not designated		34		—		34
Not subject to master netting arrangements:
Interest rate contracts – not designated		80,091		—		80,091
Credit contracts – not designated		22		—		22
	$	88,006		—	$	88,006
Derivative Liabilities
Subject to master netting arrangements:
Interest rate contracts
Designated	$	1,341		—	$	1,341
Not designated		80,625		—		80,625
Not subject to master netting arrangements:
Interest rate contracts – not designated		—		—		—
Credit contracts – not designated		219		—		219
Equity contracts – not designated		34		—		34
	$	82,219		—	$	82,219
December 31, 2015
Derivative Assets
Subject to master netting arrangements:
Interest rate contracts
Designated	$	3,178		—	$	3,178
Not designated		1		—		1
Equity contracts – not designated		18		—		18
Not subject to master netting arrangements:
Interest rate contracts – not designated		49,998		—		49,998
Credit contracts – not designated		7				7
	$	53,202		—	$	53,202
Derivative Liabilities
Subject to master netting arrangements:
Interest rate contracts
Designated	$	962		—	$	962
Not designated		50,491		—		50,491
Not subject to master netting arrangements:
Interest rate contracts – not designated		1		—		1
Credit contracts – not designated		133				133
Equity contracts – not designated		18		—		18
	$	51,605		—	$	51,605

The following table presents a reconciliation of the net amounts of derivative assets and derivative liabilities presented in the balance sheet to the net amounts that would result in the event of offset:

	Net Amount Presented in the Balance Sheet		Amount Not Offset in the Balance Sheet
			Financial Instruments		Cash Collateral		Net Amount
March 31, 2016
Derivative Assets
Interest rate contracts:
Designated	$	7,859	$	5,052	$	2,807		—
Not designated		—		—		—		—
Equity contracts – not designated		34		34		—		—
	$	7,893	$	5,086	$	2,807		—
Derivative Liabilities
Interest rate contracts:
Designated	$	1,341	$	—	$	1,341	$	—
Not designated		80,625		31,472		47,487		1,666
	$	81,966	$	31,472	$	48,828	$	1,666
December 31, 2015
Derivative Assets
Interest rate contracts:
Designated	$	3,178	$	1,516	$	1,662		—
Not designated		1		1		—		—
Equity contracts – not designated		18		18		—		—
	$	3,197	$	1,535	$	1,662		—
Derivative Liabilities
Interest rate contracts:
Designated	$	962	$	792	$	170	$	—
Not designated		50,491		24,579		24,632		1,280
	$	51,453	$	25,371	$	24,802	$	1,280

The following table presents the effect of certain of the Corporation’s derivative financial instruments on the income statement:

	Income	Three Months Ended
	Statement	March 31,
	Location	2016			2015
Interest Rate Contracts	Interest income—loans and leases	$	687		$	809
Interest Rate Contracts	Interest expense—short-term borrowings		150			—
Interest Rate Swaps	Other income		(41	)		(107	)
Credit Risk Contracts	Other income		(71	)		—

Other

The Corporation has entered into interest rate lock commitments to originate residential mortgage loans held for sale and forward commitments to sell residential mortgage loans to secondary market investors. These arrangements are considered derivative instruments. The fair values of the Corporation’s rate lock commitments to customers and commitments with investors at March 31, 2016 and December 31, 2015 are not material.

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Commitments, Credit Risk and Contingencies

3 Months Ended

Mar. 31, 2016

Commitments and Contingencies Disclosure [Abstract]

Commitments, Credit Risk and Contingencies

9. COMMITMENTS, CREDIT RISK AND CONTINGENCIES

The Corporation has commitments to extend credit and standby letters of credit that involve certain elements of credit risk in excess of the amount stated in the consolidated balance sheet. The Corporation’s exposure to credit loss in the event of non-performance by the customer is represented by the contractual amount of those instruments. The credit risk associated with loan commitments and standby letters of credit is essentially the same as that involved in extending loans and leases to customers and is subject to normal credit policies. Since many of these commitments expire without being drawn upon, the total commitment amounts do not necessarily represent future cash flow requirements.

Following is a summary of off-balance sheet credit risk information:

	March 31, 2016		December 31, 2015
Commitments to extend credit	$	4,463,138	$	3,781,719
Standby letters of credit		118,167		92,979

At March 31, 2016, funding of 75.4% of the commitments to extend credit was dependent on the financial condition of the customer. The Corporation has the ability to withdraw such commitments at its discretion. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Based on management’s credit evaluation of the customer, collateral may be deemed necessary. Collateral requirements vary and may include accounts receivable, inventory, property, plant and equipment and income-producing commercial properties.

Standby letters of credit are conditional commitments issued by the Corporation that may require payment at a future date. The credit risk involved in issuing letters of credit is quantified on a quarterly basis, through the review of historical performance of the Corporation’s portfolios and recorded as a liability on the Corporation’s balance sheet.

In addition, subordinated notes issued by a wholly-owned finance subsidiary of the Corporation are fully and unconditionally guaranteed by the Corporation.

Other Legal Proceedings

In the ordinary course of business, the Corporation and its subsidiaries are routinely named as defendants in, or made parties to, pending and potential legal actions. Also, as regulated entities, the Corporation and its subsidiaries also are subject to governmental and regulatory examinations, information-gathering requests, investigations and proceedings (both formal and informal). Claims for significant monetary damages may be asserted in many of these type legal actions, while claims for disgorgement, restitution, penalties and/or other remedial actions or sanctions may be sought in regulatory matters. It is inherently difficult to predict the eventual outcomes of such matters given their complexity and the particular facts and circumstances at issue in each of these matters. However, on the basis of current knowledge and understanding, and advice of counsel, the Corporation does not believe that judgments, sanctions, settlements or orders, if any, that may arise from these matters (either individually or in the aggregate, after giving effect to applicable reserves and insurance coverage) will have a material adverse effect on the consolidated financial position or liquidity of the Corporation, although they could have a material effect on net income in a given period. In view of the inherent unpredictability of outcomes in litigation and governmental and regulatory matters, particularly where (i) the damages sought are indeterminate, (ii) the proceedings are in the early stages, or (iii) the matters involve novel legal theories or a large number of parties, as a matter of course, there is considerable uncertainty surrounding the timing or ultimate resolution of litigation and governmental and regulatory matters, including a possible eventual loss, fine, penalty, business or reputational impact, if any, associated with each such matter. In accordance with applicable accounting guidance, the Corporation establishes accruals for litigation and governmental and regulatory matters when those matters proceed to a stage where they present loss contingencies that are both probable and reasonably estimable. In such cases, there may be a possible exposure to loss in excess of any amounts accrued. The Corporation will continue to monitor such matters for developments that could affect the amount of the accrual, and will adjust the accrual amount as appropriate. If the loss contingency in question is not both probable and reasonably estimable, the Corporation does not establish an accrual and the matter will continue to be monitored for any developments that would make the loss contingency both probable and reasonably estimable. The Corporation believes that its accruals for legal proceedings are appropriate and, in the aggregate, are not material to the consolidated financial position of the Corporation, although future accruals could have a material effect on net income in a given period.

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Stock Incentive Plans

3 Months Ended

Mar. 31, 2016

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock Incentive Plans

10. STOCK INCENTIVE PLANS

Restricted Stock

The Corporation issues restricted stock awards, consisting of both restricted stock and restricted stock units, to key employees under its Incentive Compensation Plans (Plans). The Corporation issues time-based awards and performance-based awards under these Plans, both of which are based on a three-year vesting period. The grant date fair value of the time-based awards is equal to the price of the Corporation’s common stock on the grant date. The fair value of the performance-based awards is based on a Monte-Carlo Simulation valuation of the Corporation’s common stock as of the grant date.

The Corporation did not issue any restricted stock awards for the three months ended March 31, 2016 or 2015. For performance-based restricted stock awards granted, the recipients will earn between 0% and 175% of the number of units issued, based on the Corporation’s total stockholder return relative to a specified peer group of financial institutions over the three-year period. These market-based restricted stock units are included in the table below as if the recipients earned shares equal to 100% of the units issued. As of March 31, 2016, the Corporation had available up to 3,310,508 shares of common stock to issue under the Plans.

The unvested restricted stock awards are eligible to receive cash dividends or dividend equivalents which are ultimately used to purchase additional shares of stock and are subject to forfeiture if the requisite service period is not completed or the specified performance criteria are not met. These awards are subject to certain accelerated vesting provisions upon retirement, death, disability or in the event of a change of control as defined in the award agreements.

Share-based compensation expense related to restricted stock awards was $1,136 and $340 for the three months ended March 31, 2016 and 2015, the tax benefit of which was $398 and $119, respectively.

The following table summarizes certain information concerning restricted stock awards:

	Three Months Ended March 31,
	2016					2015
	Awards			Weighted Average Grant Price		Awards			Weighted Average Grant Price
Unvested awards outstanding at beginning of period		1,548,444		$	12.85		1,354,093		$	11.86
Net adjustment due to performance		—			—		(46,956	)		10.25
Vested		(363,799	)		12.07		(458,450	)		10.60
Forfeited		(6,368	)		12.79		(2,357	)		17.93
Dividend reinvestment		10,870			11.50		7,656			14.24
Unvested awards outstanding at end of period		1,189,147			13.08		853,986			12.63

The total fair value of awards vested was $4,424 and $5,740 for the three months ended March 31, 2016 and 2015, respectively.

As of March 31, 2016, there was $8,097 of unrecognized compensation cost related to unvested restricted stock awards, including $40 that is subject to accelerated vesting under the Plan’s immediate vesting upon retirement provision for awards granted prior to the adoption of ASC 718, Compensation – Stock Compensation. The components of the restricted stock awards as of March 31, 2016 are as follows:

	Service- Based Awards		Performance- Based Awards		Total
Unvested awards		514,702		674,445		1,189,147
Unrecognized compensation expense	$	3,178	$	4,919	$	8,097
Intrinsic value	$	6,696	$	8,775	$	15,471
Weighted average remaining life (in years)		1.69		2.37		2.08

Stock Options

All outstanding stock options were assumed in connection with certain of the Corporation’s completed acquisitions and are fully vested. Upon consummation of those acquisitions, all outstanding stock options issued by the acquired companies were converted into equivalent Corporation stock options. The Corporation issues shares of treasury stock or authorized but unissued shares to satisfy stock options exercised. Shares issued upon the exercise of stock options were 24,806 and 60,094 for the three months ended March 31, 2016 and 2015, respectively.

The following table summarizes certain information concerning stock option awards:

	Three Months Ended March 31,
	2016					2015
	Shares			Weighted Average Exercise Price		Shares			Weighted Average Exercise Price
Options outstanding at beginning of period		435,340		$	8.86		568,834		$	8.86
Assumed from acquisitions		1,707,036			7.83		—			—
Exercised		(24,806	)		6.38		(60,094	)		5.04
Forfeited		(92,650	)		6.69		(2,182	)		4.34
Options outstanding and exercisable at end of period		2,024,920			8.12		506,558			9.33

The intrinsic value of outstanding and exercisable stock options at March 31, 2016 was $10,045.

Warrants

In conjunction with its participation in the U.S. Department of the Treasury’s (UST) Capital Purchase Program (CPP), the Corporation issued to the UST a warrant to purchase up to 1,302,083 shares of the Corporation’s common stock. Pursuant to Section 13(H) of the Warrant to Purchase Common Stock, the number of shares of common stock issuable upon exercise of the warrant was reduced in half to 651,042 shares on June 16, 2009, the date the Corporation completed a public offering. The warrant, which expires in 2019, was sold at auction by the UST and has an exercise price of $11.52 per share.

In conjunction with the Annapolis Bancorp, Inc. (ANNB) acquisition on April 6, 2013, the warrant issued by ANNB to the UST under the CPP has been converted into a warrant to purchase up to 342,564 shares of the Corporation’s common stock at an exercise price of $3.57 per share. Subsequent adjustments related to actual dividends paid by the Corporation have increased the share amount of these warrants to 380,390, with a resulting lower exercise price of $3.21 per share as of March 31, 2016. The warrant, which was recorded at its fair value on April 6, 2013, was sold at auction by the UST and expires in 2019.

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Retirement Plans

3 Months Ended

Mar. 31, 2016

Compensation and Retirement Disclosure [Abstract]

Retirement Plans

11. RETIREMENT PLANS

The Corporation sponsors the Retirement Income Plan (RIP), a qualified noncontributory defined benefit pension plan that covered substantially all salaried employees hired prior to January 1, 2008. The RIP covers employees who satisfied minimum age and length of service requirements. The Corporation’s funding guideline has been to make annual contributions to the RIP each year, if necessary, such that minimum funding requirements have been met. The RIP was frozen as of December 31, 2010.

The Corporation also sponsors two supplemental non-qualified retirement plans. The ERISA Excess Retirement Plan provides retirement benefits equal to the difference, if any, between the maximum benefit allowable under the Internal Revenue Code and the amount that would be provided under the RIP, if no limits were applied. The Basic Retirement Plan (BRP) is applicable to certain officers whom the Board of Directors designates. Officers participating in the BRP receive a benefit based on a target benefit percentage based on years of service at retirement and a designated tier as determined by the Board of Directors. When a participant retires, the basic benefit under the BRP is a monthly benefit equal to the target benefit percentage times the participant’s highest average monthly cash compensation during five consecutive calendar years within the last ten calendar years of employment. This monthly benefit is reduced by the monthly benefit the participant receives from Social Security, the RIP, the ERISA Excess Retirement Plan and the annuity equivalent of the automatic contributions to the qualified 401(k) defined contribution plan and the ERISA Excess Lost Match Plan. The BRP was frozen as of December 31, 2008. The ERISA Excess Retirement Plan was frozen as of December 31, 2010.

The net periodic benefit credit for the defined benefit plans includes the following components:

	Three Months Ended
	March 31,
	2016			2015
Service cost	$	(4	)	$	17
Interest cost		1,544			1,477
Expected return on plan assets		(2,353	)		(2,491	)
Amortization:
Unrecognized prior service cost		2			2
Unrecognized loss		608			536
Net periodic pension credit	$	(203	)	$	(459	)

The Corporation’s subsidiaries participate in a qualified 401(k) defined contribution plan under which employees may contribute a percentage of their salary. Employees are eligible to participate upon their first day of employment. Under this plan, the Corporation matches 100% of the first six percent that the employee defers. Additionally, the Corporation may provide a performance-based company contribution of up to three percent if the Corporation exceeds annual financial goals. The Corporation’s contribution expense was $2,462 and $2,167 for the three months ended March 31, 2016 and 2015, respectively.

The Corporation also sponsors an ERISA Excess Lost Match Plan for certain officers. This plan provides retirement benefits equal to the difference, if any, between the maximum benefit allowable under the Internal Revenue Code and the amount that would have been provided under the qualified 401(k) defined contribution plan, if no limits were applied.

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Comprehensive Income

3 Months Ended

Mar. 31, 2016

Equity [Abstract]

Comprehensive Income

12. COMPREHENSIVE INCOME

The components of comprehensive income, net of related tax, are as follows:

	Three Months Ended
	March 31,
	2016			2015
Net income	$	26,132		$	40,343
Other comprehensive income:
Securities available for sale:
Unrealized gains arising during the period, net of tax expense of $7,719 and $4,523		14,335			8,400
Reclassification adjustment for (gains) losses included in net income, net of tax expense of $25 and $(3)		(46	)		6
Derivative instruments:
Unrealized gains arising during the period, net of tax expense of $1,693 and $1,504		3,145			2,793
Reclassification adjustment for gains included in net income, net of tax expense of $188 and $283		(349	)		(526	)
Pension and postretirement benefit obligations:
Unrealized gains arising during the period, net of tax expense of $214 and $189		397			350
Other comprehensive income		17,482			11,023
Comprehensive income	$	43,614		$	51,366

The amounts reclassified from AOCI related to securities available for sale are included in net securities gains on the Consolidated Statements of Comprehensive Income, while the amounts reclassified from AOCI related to derivative instruments are included in interest income on loans and leases on the Consolidated Statements of Comprehensive Income.

The tax (benefit) expense amounts reclassified from AOCI in connection with the securities available for sale and derivative instruments reclassifications are included in income taxes on the Consolidated Statements of Comprehensive Income.

The following table presents changes in AOCI, net of tax, by component:

	Unrealized Net Gains (Losses) on Securities Available for Sale			Unrealized Net Gains (Losses) on Derivative Instruments			Unrecognized Pension and Postretirement Obligations			Total
Three Months Ended March 31, 2016
Balance at beginning of period	$	(3,873	)	$	1,440		$	(48,700	)	$	(51,133	)
Other comprehensive income before reclassifications		14,335			3,145			397			17,877
Amounts reclassified from AOCI		(46	)		(349	)		—			(395	)
Net current period other comprehensive income		14,289			2,796			397			17,482
Balance at end of period	$	10,416		$	4,236		$	(48,303	)	$	(33,651	)

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Earnings per Common Share

3 Months Ended

Mar. 31, 2016

Earnings Per Share [Abstract]

Earnings per Common Share

13. EARNINGS PER COMMON SHARE

Basic earnings per common share is calculated by dividing net income available to common stockholders by the weighted average number of shares of common stock outstanding net of unvested shares of restricted stock.

Diluted earnings per common share is calculated by dividing net income available to common stockholders by the weighted average number of shares of common stock outstanding, adjusted for the dilutive effect of potential common shares issuable for stock options, warrants and restricted shares, as calculated using the treasury stock method. Adjustments to the weighted average number of shares of common stock outstanding are made only when such adjustments dilute earnings per common share.

The following table sets forth the computation of basic and diluted earnings per common share:

	Three Months Ended
	March 31,
	2016		2015
Net income	$	26,132	$	40,343
Less: Preferred stock dividends		2,010		2,010
Net income available to common stockholders	$	24,122	$	38,333
Basic weighted average common shares outstanding		193,585,702		174,152,283
Net effect of dilutive stock options, warrants, restricted stock and convertible debt		1,292,220		1,673,693
Diluted weighted average common shares outstanding		194,877,922		175,825,976
Earnings per common share:
Basic	$	0.12	$	0.22
Diluted	$	0.12	$	0.22

For the three months ended March 31, 2016 and 2015, 15,501 and 24,272 shares of common stock, respectively, related to stock options and warrants were excluded from the computation of diluted earnings per common share because the exercise price of the shares was greater than the average market price of the common shares and, therefore, the effect would be anti-dilutive.

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Cash Flow Information

3 Months Ended

Mar. 31, 2016

Supplemental Cash Flow Elements [Abstract]

Cash Flow Information

14. CASH FLOW INFORMATION

Following is a summary of supplemental cash flow information:

	2016		2015
Three Months Ended March 31
Interest paid on deposits and other borrowings	$	13,794	$	11,626
Income taxes paid		—		—
Transfers of loans to other real estate owned		8,049		1,965
Financing of other real estate owned sold		62		166

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Business Segments

3 Months Ended

Mar. 31, 2016

Segment Reporting [Abstract]

Business Segments

15. BUSINESS SEGMENTS

The Corporation operates in four reportable segments: Community Banking, Wealth Management, Insurance and Consumer Finance.

• The Community Banking segment provides commercial and consumer banking services. Commercial banking solutions include corporate banking, small business banking, investment real estate financing, international banking, business credit, capital markets and lease financing. Consumer banking products and services include deposit products, mortgage lending, consumer lending and a complete suite of mobile and online banking services.

• The Wealth Management segment provides a broad range of personal and corporate fiduciary services including the administration of decedent and trust estates. In addition, it offers various alternative products, including securities brokerage and investment advisory services, mutual funds and annuities.

• The Insurance segment includes a full-service insurance agency offering all lines of commercial and personal insurance through major carriers. The Insurance segment also includes a reinsurer.

• The Consumer Finance segment primarily makes installment loans to individuals and purchases installment sales finance contracts from retail merchants. The Consumer Finance segment activity is funded through the sale of the Corporation’s subordinated notes at the finance company’s branch offices.

The following tables provide financial information for these segments of the Corporation. The information provided under the caption “Parent and Other” represents operations not considered to be reportable segments and/or general operating expenses of the Corporation, and includes the parent company, other non-bank subsidiaries and eliminations and adjustments which are necessary for purposes of reconciliation to the consolidated amounts.

	Community Banking		Wealth Management		Insurance		Consumer Finance		Parent and Other			Consolidated
At or for the Three Months Ended March 31, 2016
Interest income	$	143,978	$	—	$	22	$	9,785	$	1,969		$	155,754
Interest expense		12,594		—		—		941		1,865			15,400
Net interest income		131,384		—		22		8,844		104			140,354
Provision for credit losses		9,917		—		—		1,526		325			11,768
Non-interest income		31,233		8,816		4,194		716		1,085			46,044
Non-interest expense		118,048		7,089		3,301		5,204		357			133,999
Intangible amortization		2,441		65		143		—		—			2,649
Income tax expense (benefit)		10,117		605		275		1,112		(259	)		11,850
Net income (loss)		22,094		1,057		497		1,718		766			26,132
Total assets		20,151,815		20,540		21,680		188,547		(58,058	)		20,324,524
Total intangibles		1,062,079		10,383		12,779		1,809		—			1,087,050

	Community Banking		Wealth Management		Insurance			Consumer Finance		Parent and Other			Consolidated
At or for the Three Months Ended March 31, 2015
Interest income	$	122,118	$	—	$	23		$	9,593	$	1,635		$	133,369
Interest expense		9,941		—		—			860		647			11,448
Net interest income		112,177		—		23			8,733		988			121,921
Provision for credit losses		6,327		—		—			1,574		235			8,136
Non-interest income		27,301		8,387		3,593			676		(1,775	)		38,182
Non-interest expense		77,079		6,493		4,170			4,808		(10	)		92,540
Intangible amortization		1,947		68		100			—		—			2,115
Income tax expense (benefit)		15,931		658		(226	)		1,149		(543	)		16,969
Net income (loss)		38,194		1,168		(428	)		1,878		(469	)		40,343
Total assets		16,100,851		21,125		18,464			182,662		(44,254	)		16,278,848
Total intangibles		852,764		10,652		10,021			1,809		—			875,246

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Fair Value Measurements

3 Months Ended

Mar. 31, 2016

Fair Value Disclosures [Abstract]

Fair Value Measurements

16. FAIR VALUE MEASUREMENTS

The Corporation uses fair value measurements to record fair value adjustments to certain financial assets and liabilities and to determine fair value disclosures. Securities available for sale and derivatives are recorded at fair value on a recurring basis. Additionally, from time to time, the Corporation may be required to record at fair value other assets on a non-recurring basis, such as mortgage loans held for sale, certain impaired loans, OREO and certain other assets.

Fair value is defined as an exit price, representing the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Fair value measurements are not adjusted for transaction costs. Fair value is a market-based measure considered from the perspective of a market participant who holds the asset or owes the liability rather than an entity-specific measure.

In determining fair value, the Corporation uses various valuation approaches, including market, income and cost approaches. ASC 820, Fair Value Measurements and Disclosures, establishes a hierarchy for inputs used in measuring fair value that maximizes the use of observable inputs and minimizes the use of unobservable inputs by requiring that observable inputs be used when available. Observable inputs are inputs that market participants would use in pricing the asset or liability, which are developed based on market data obtained from sources independent of the Corporation. Unobservable inputs reflect the Corporation’s assumptions about the assumptions that market participants would use in pricing an asset or liability, which are developed based on the best information available in the circumstances.

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

Measurement Category	Definition
Level 1	valuation is based upon unadjusted quoted market prices for identical instruments traded in active markets.
Level 2	valuation is based upon quoted market prices for similar instruments traded in active markets, quoted market prices for identical or similar instruments traded in markets that are not active and model-based valuation techniques for which all significant assumptions are observable in the market or can be corroborated by market data.
Level 3	valuation is derived from other valuation methodologies including discounted cash flow models and similar techniques that use significant assumptions not observable in the market. These unobservable assumptions reflect estimates of assumptions that market participants would use in determining fair value.

A financial instrument’s level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement.

Following is a description of the valuation methodologies the Corporation uses for financial instruments recorded at fair value on either a recurring or non-recurring basis:

Securities Available For Sale

Securities available for sale consists of both debt and equity securities. These securities are recorded at fair value on a recurring basis. At March 31, 2016, 99.9% of these securities used valuation methodologies involving market-based or market-derived information, collectively Level 1 and Level 2 measurements, to measure fair value. The remaining 0.1% of these securities were measured using model-based techniques, with primarily unobservable (Level 3) inputs.

The Corporation closely monitors market conditions involving assets that have become less actively traded. If the fair value measurement is based upon recent observable market activity of such assets or comparable assets (other than forced or distressed transactions) that occur in sufficient volume, and do not require significant adjustment using unobservable inputs, those assets are classified as Level 1 or Level 2; if not, they are classified as Level 3. Making this assessment requires significant judgment.

The Corporation uses prices from independent pricing services and, to a lesser extent, indicative (non-binding) quotes from independent brokers, to measure the fair value of investment securities. The Corporation validates prices received from pricing services or brokers using a variety of methods, including, but not limited to, comparison to secondary pricing services, corroboration of pricing by reference to other independent market data such as secondary broker quotes and relevant benchmark indices, and review of pricing information by Corporate personnel familiar with market liquidity and other market-related conditions.

Derivative Financial Instruments

The Corporation determines its fair value for derivatives using widely accepted valuation techniques including discounted cash flow analysis on the expected cash flows of each derivative. This analysis reflects contractual terms of the derivative, including the period to maturity and uses observable market based inputs, including interest rate curves and implied volatilities.

The Corporation incorporates credit valuation adjustments to appropriately reflect both its own non-performance risk and the respective counterparty’s non-performance risk in the fair value measurements. In adjusting the fair value of its derivative contracts for the effect of non-performance risk, the Corporation considers the impact of netting and any applicable credit enhancements, such as collateral postings, thresholds, mutual puts and guarantees.

Although the Corporation has determined that the majority of the inputs used to value its derivatives fall within Level 2 of the fair value hierarchy, the credit valuation adjustments associated with its derivatives utilize Level 3 inputs, such as estimates of current credit spreads to evaluate the likelihood of default by itself and its counterparties. However, as of March 31, 2016, the Corporation has assessed the significance of the impact of the credit valuation adjustments on the overall valuation of its derivative positions and has determined that the credit valuation adjustments are not significant to the overall valuation of its derivatives. As a result, the Corporation has determined that its derivative valuations in their entirety are classified in Level 2 of the fair value hierarchy.

Residential Mortgage Loans Held For Sale

These loans are carried at the lower of cost or fair value. Under lower of cost or fair value accounting, periodically, it may be necessary to record non-recurring fair value adjustments. Fair value, when recorded, is based on independent quoted market prices and is classified as Level 2.

Impaired Loans

The Corporation reserves for commercial loan relationships greater than or equal to $500 that the Corporation considers impaired as defined in ASC 310 at the time the Corporation identifies the loan as impaired based upon the present value of expected future cash flows available to pay the loan, or based upon the fair value of the collateral less estimated selling costs where a loan is collateral dependent. Collateral may be real estate and/or business assets including equipment, inventory and accounts receivable.

The Corporation determines the fair value of real estate based on appraisals by licensed or certified appraisers. The value of business assets is generally based on amounts reported on the business’ financial statements. Management must rely on the financial statements prepared and certified by the borrower or its accountants in determining the value of these business assets on an ongoing basis, which may be subject to significant change over time. Based on the quality of information or statements provided, management may require the use of business asset appraisals and site-inspections to better value these assets. The Corporation may discount appraised and reported values based on management’s historical knowledge, changes in market conditions from the time of valuation or management’s knowledge of the borrower and the borrower’s business. Since not all valuation inputs are observable, the Corporation classifies these non-recurring fair value determinations as Level 2 or Level 3 based on the lowest level of input that is significant to the fair value measurement.

The Corporation reviews and evaluates impaired loans no less frequently than quarterly for additional impairment based on the same factors identified above.

Other Real Estate Owned

OREO is comprised of commercial and residential real estate properties obtained in partial or total satisfaction of loan obligations plus some bank owned real estate. OREO acquired in settlement of indebtedness is recorded at the lower of carrying amount of the loan or fair value less costs to sell. Subsequently, these assets are carried at the lower of carrying value or fair value less costs to sell. Accordingly, it may be necessary to record non-recurring fair value adjustments. Fair value is generally based upon appraisals by licensed or certified appraisers and other market information and is classified as Level 2 or Level 3.

The following table presents the balances of assets and liabilities measured at fair value on a recurring basis:

	Level 1		Level 2		Level 3		Total
March 31, 2016
Assets Measured at Fair Value
Available for sale debt securities:
U.S. Treasury	$	—	$	29,994	$	—	$	29,994
U.S. government-sponsored entities		—		401,078		—		401,078
Residential mortgage-backed securities:
Agency mortgage-backed securities		—		1,087,865		—		1,087,865
Agency collateralized mortgage obligations		—		525,630		—		525,630
Non-agency collateralized mortgage obligations		—		5		1,091		1,096
Commercial mortgage-backed securities		—		3,673		—		3,673
States of the U.S. and political subdivisions		—		39,804		—		39,804
Other debt securities		—		8,908		—		8,908
		—		2,096,957		1,091		2,098,048
Available for sale equity securities:
Financial services industry		102		636		424		1,162
Insurance services industry		133		—		—		133
		235		636		424		1,295
		235		2,097,593		1,515		2,099,343
Derivative financial instruments:
Trading		—		80,125		—		80,125
Not for trading		—		7,881		—		7,881
		—		88,006		—		88,006
	$	235	$	2,185,599	$	1,515	$	2,187,349
Liabilities Measured at Fair Value
Derivative financial instruments:
Trading		—	$	80,659		—	$	80,659
Not for trading		—		1,560		—		1,560
		—	$	82,219		—	$	82,219

	Level 1		Level 2		Level 3		Total
December 31, 2015
Assets Measured at Fair Value
Available for sale debt securities:
U.S. Treasury	$	—	$	29,796	$	—	$	29,796
U.S. government-sponsored entities		—		367,994		—		367,994
Residential mortgage-backed securities:
Agency mortgage-backed securities		—		704,831		—		704,831
Agency collateralized mortgage obligations		—		495,830		—		495,830
Non-agency collateralized mortgage obligations		—		6		1,184		1,190
Commercial mortgage-backed securities		—		4,287		—		4,287
States of the U.S. and political subdivisions		—		11,057		—		11,057
Other debt securities		—		14,286		—		14,286
		—		1,628,087		1,184		1,629,271
Available for sale equity securities:
Financial services industry		97		632		439		1,168
Insurance services industry		128		—		—		128
		225		632		439		1,296
		225		1,628,719		1,623		1,630,567
Derivative financial instruments:
Trading		—		50,017		—		50,017
Not for trading		—		3,185		—		3,185
		—		53,202		—		53,202
	$	225	$	1,681,921	$	1,623	$	1,683,769
Liabilities Measured at Fair Value
Derivative financial instruments:
Trading		—	$	50,510		—	$	50,510
Not for trading		—		1,095		—		1,095
		—	$	51,605		—	$	51,605

The following table presents additional information about assets measured at fair value on a recurring basis and for which the Corporation has utilized Level 3 inputs to determine fair value:

	Equity Securities			Residential Non-Agency Collateralized Mortgage Obligations			Total
Three Months Ended March 31, 2016
Balance at beginning of period	$	439		$	1,184		$	1,623
Total gains (losses) – realized/unrealized:
Included in earnings		—			—			—
Included in other comprehensive income		(15	)		(28	)		(43	)
Accretion included in earnings		—			2			2
Purchases, issuances, sales and settlements:
Purchases		—			—			—
Issuances		—			—			—
Sales/redemptions		—			—			—
Settlements		—			(67	)		(67	)
Transfers from Level 3		—			—			—
Transfers into Level 3		—			—			—
Balance at end of period	$	424		$	1,091		$	1,515
Year Ended December 31, 2015
Balance at beginning of period	$	475		$	1,420		$	1,895
Total gains (losses) – realized/unrealized:
Included in earnings		—			—			—
Included in other comprehensive income		20			(4	)		16
Accretion included in earnings		—			5			5
Purchases, issuances, sales and settlements:
Purchases		—			—			—
Issuances		—			—			—
Sales/redemptions		—			—			—
Settlements		—			(237	)		(237	)
Transfers from Level 3		(56	)		—			(56	)
Transfers into Level 3		—			—			—
Balance at end of period	$	439		$	1,184		$	1,623

The Corporation reviews fair value hierarchy classifications on a quarterly basis. Changes in the observability of the valuation attributes may result in reclassification of certain financial assets or liabilities. Such reclassifications are reported as transfers in/out of Level 3 at fair value at the beginning of the period in which the changes occur. See the Securities Available for Sale footnote in this section of this Report for information relating to determining Level 3 fair values. There were no transfers of assets or liabilities between the hierarchy levels during the first three months of 2016. During 2015, the Corporation transferred an equity security totaling $56 to non-marketable equity securities, reflected in other assets on the Consolidated Balance Sheet.

For the three months ended March 31, 2016 and 2015, there were no gains or losses included in earnings attributable to the change in unrealized gains or losses relating to assets still held as of those dates. The total (losses) gains included in earnings are in the net securities (losses) gains line item in the Consolidated Statements of Comprehensive Income.

In accordance with GAAP, from time to time, the Corporation measures certain assets at fair value on a non-recurring basis. These adjustments to fair value usually result from the application of the lower of cost or fair value accounting or write-downs of individual assets. Valuation methodologies used to measure these fair value adjustments were previously described. For assets measured at fair value on a non-recurring basis still held at the balance sheet date, the following table provides the hierarchy level and the fair value of the related assets or portfolios:

	Level 1		Level 2		Level 3		Total
March 31, 2016
Impaired loans		—	$	957	$	7,257	$	8,214
Other real estate owned		—		1,148		868		2,016
December 31, 2015
Impaired loans		—		124		3,704		3,828
Other real estate owned		—		5,705		2,126		7,831

Substantially all of the fair value amounts in the table above were estimated at a date during the three months or twelve months ended March 31, 2016 and December 31, 2015, respectively. Consequently, the fair value information presented is not as of the period’s end.

Impaired loans measured or re-measured at fair value on a non-recurring basis during the three months ended March 31, 2016 had a carrying amount of $14,064 and an allocated allowance for credit losses of $6,012. The allocated allowance is based on fair value of $8,214 less estimated costs to sell of $162. The allowance for credit losses includes a provision applicable to the current period fair value measurements of $3,362, which was included in the provision for credit losses for the three months ended March 31, 2016.

OREO with a carrying amount of $2,616 was written down to $1,803 (fair value of $2,016 less estimated costs to sell of $213), resulting in a loss of $813, which was included in earnings for the three months ended March 31, 2016.

Fair Value of Financial Instruments

The following methods and assumptions were used to estimate the fair value of each financial instrument:

Cash and Cash Equivalents, Accrued Interest Receivable and Accrued Interest Payable. For these short-term instruments, the carrying amount is a reasonable estimate of fair value.

Securities. For both securities available for sale and securities held to maturity, fair value equals the quoted market price from an active market, if available, and is classified within Level 1. If a quoted market price is not available, fair value is estimated using quoted market prices for similar securities or pricing models, and is classified as Level 2. Where there is limited market activity or significant valuation inputs are unobservable, securities are classified within Level 3. Under current market conditions, assumptions used to determine the fair value of Level 3 securities have greater subjectivity due to the lack of observable market transactions.

Loans and Leases. The fair value of fixed rate loans and leases is estimated by discounting the future cash flows using the current rates at which similar loans and leases would be made to borrowers with similar credit ratings and for the same remaining maturities less an illiquidity discount. The fair value of variable and adjustable rate loans and leases approximates the carrying amount. Due to the significant judgment involved in evaluating credit quality, loans and leases are classified within Level 3 of the fair value hierarchy.

Derivative Assets and Liabilities. The Corporation determines its fair value for derivatives using widely accepted valuation techniques including discounted cash flow analysis on the expected cash flows of each derivative. This analysis reflects contractual terms of the derivative, including the period to maturity and uses observable market based inputs, including interest rate curves and implied volatilities.

The Corporation incorporates credit valuation adjustments to appropriately reflect both its own non-performance risk and the respective counterparty’s non-performance risk in the fair value measurements. In adjusting the fair value of its derivative contracts for the effect of non-performance risk, the Corporation considers the impact of netting and any applicable credit enhancements, such as collateral postings, thresholds, mutual puts and guarantees.

Although the Corporation has determined that the majority of the inputs used to value its derivatives fall within Level 2 of the fair value hierarchy, the credit valuation adjustments associated with its derivatives utilize Level 3 inputs, such as estimates of current credit spreads to evaluate the likelihood of default by itself and its counterparties. However, as of March 31, 2016, the Corporation has assessed the significance of the impact of the credit valuation adjustments on the overall valuation of its derivative positions and has determined that the credit valuation adjustments are not significant to the overall valuation of its derivatives. As a result, the Corporation has determined that its derivative valuations in their entirety are classified in Level 2 of the fair value hierarchy.

Deposits. The estimated fair value of demand deposits, savings accounts and certain money market deposits is the amount payable on demand at the reporting date because of the customers’ ability to withdraw funds immediately. The fair value of fixed-maturity deposits is estimated by discounting future cash flows using rates currently offered for deposits of similar remaining maturities.

Short-Term Borrowings. The carrying amounts for short-term borrowings approximate fair value for amounts that mature in 90 days or less. The fair value of subordinated notes is estimated by discounting future cash flows using rates currently offered.

Long-Term Borrowings. The fair value of long-term borrowings is estimated by discounting future cash flows based on the market prices for the same or similar issues or on the current rates offered to the Corporation for debt of the same remaining maturities.

Loan Commitments and Standby Letters of Credit. Estimates of the fair value of these off-balance sheet items were not made because of the short-term nature of these arrangements and the credit standing of the counterparties. Also, unfunded loan commitments relate principally to variable rate commercial loans, typically are non-binding, and fees are not normally assessed on these balances.

Nature of Estimates. Many of the estimates presented herein are based upon the use of highly subjective information and assumptions and, accordingly, the results may not be precise. Management believes that fair value estimates may not be comparable to other financial institutions due to the wide range of permitted valuation techniques and numerous estimates which must be made. Further, because the disclosed fair value amounts were estimated as of the balance sheet date, the amounts actually realized or paid upon maturity or settlement of the various financial instruments could be significantly different.

The fair values of the Corporation’s financial instruments are as follows:

	Carrying				Fair Value Measurements
	Amount		Fair Value		Level 1		Level 2		Level 3
March 31, 2016
Financial Assets
Cash and cash equivalents	$	345,945	$	345,945	$	345,945	$	—	$	—
Securities available for sale		2,099,343		2,099,343		235		2,097,593		1,515
Securities held to maturity		1,776,020		1,803,453		—		1,801,022		2,431
Net loans and leases, including loans held for sale		14,025,482		13,969,315		—		—		13,969,315
Derivative assets		88,006		88,006		—		88,006		—
Accrued interest receivable		53,609		53,609		53,609		—		—
Financial Liabilities
Deposits		15,390,483		15,397,218		12,700,899		2,696,319		—
Short-term borrowings		1,563,888		1,563,947		1,563,947		—		—
Long-term borrowings		657,445		656,929		—		—		656,929
Derivative liabilities		82,219		82,219		—		82,219		—
Accrued interest payable		9,063		9,063		9,063		—		—

	Carrying				Fair Value Measurements
	Amount		Fair Value		Level 1		Level 2		Level 3
December 31, 2015
Financial Assets
Cash and cash equivalents	$	489,119	$	489,119	$	489,119	$	—	$	—
Securities available for sale		1,630,567		1,630,567		225		1,628,719		1,623
Securities held to maturity		1,637,061		1,643,416		—		1,640,721		2,695
Net loans and leases, including loans held for sale		12,053,209		11,863,882		—		—		11,863,882
Derivative assets		53,202		53,202		—		53,202		—
Accrued interest receivable		44,920		44,920		44,920		—		—
Financial Liabilities
Deposits		12,623,463		12,610,914		10,157,997		2,452,917		—
Short-term borrowings		2,048,896		2,048,943		2,048,943		—		—
Long-term borrowings		641,480		637,935		—		—		637,935
Derivative liabilities		51,605		51,605		—		51,605		—
Accrued interest payable		7,457		7,457		7,457		—		—

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Summary of Significant Accounting Policies (Policies)

3 Months Ended

Mar. 31, 2016

Basis of Presentation

Basis of Presentation

The Corporation’s accompanying consolidated financial statements and these notes to the financial statements include subsidiaries in which the Corporation has a controlling financial interest. The Corporation owns and operates FNBPA, First National Trust Company, First National Investment Services Company, LLC, F.N.B. Investment Advisors, Inc., First National Insurance Agency, LLC, Regency, Bank Capital Services, LLC and F.N.B. Capital Corporation, LLC, and includes results for each of these entities in the accompanying consolidated financial statements.

The accompanying consolidated financial statements include all adjustments that are necessary, in the opinion of management, to fairly reflect the Corporation’s financial position and results of operations in accordance with U.S. generally accepted accounting principles (GAAP). All significant intercompany balances and transactions have been eliminated. Certain prior period amounts have been reclassified to conform to the current period presentation. Events occurring subsequent to the date of the balance sheet have been evaluated for potential recognition or disclosure in the consolidated financial statements through the date of the filing of the consolidated financial statements with the Securities and Exchange Commission (SEC).

Certain information and note disclosures normally included in consolidated financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to the rules and regulations of the SEC. The interim operating results are not necessarily indicative of operating results the Corporation expects for the full year. These interim consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in the Corporation’s Annual Report on Form 10-K filed with the SEC on February 26, 2016.

Use of Estimates

Use of Estimates

The accounting and reporting policies of the Corporation conform with GAAP. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could materially differ from those estimates. Material estimates that are particularly susceptible to significant changes include the allowance for credit losses, securities valuations, goodwill and other intangible assets, fair value measurements and income taxes.

Business Combinations

Business Combinations

Business combinations are accounted for by applying the acquisition method in accordance with Accounting Standards Codification (ASC) 805, Business Combinations. Under the acquisition method, identifiable assets acquired and liabilities assumed, and any non-controlling interest in the acquiree at the acquisition date are measured at their fair values as of that date, and are recognized separately from goodwill. Results of operations of the acquired entities are included in the consolidated statement of comprehensive income from the date of acquisition. Beginning in 2016, measurement-period adjustments are recorded in the period the adjustment is identified. Prior to this time, measurement-period adjustments were recorded retrospectively.

Cloud Computing Arrangements

Cloud Computing Arrangements

Beginning in 2016, for new or materially modified contracts, the Corporation prospectively adopted new accounting principles to evaluate fees paid for cloud computing arrangements to determine if those arrangements include the purchase of or license to software that should be accounted for separately as internal-use software. If a contract includes the purchase or license to software that should be accounted for separately as internal-use software, the contract is amortized over the software’s identified useful life in amortization of intangibles. For contracts that do not include a software license, the contract is accounted for as a service contract with fees paid recorded in other non-interest expense.

Stock Based Compensation

Stock Based Compensation

The Corporation accounts for its stock based compensation awards in accordance with Accounting Standards Codification (ASC) 718, Compensation—Stock Compensation, which requires the measurement and recognition of compensation expense, based on estimated fair values, for all share-based awards, including stock options and restricted stock, made to employees and directors.

ASC 718 requires companies to estimate the fair value of share-based awards on the date of grant. The value of the portion of the award that is ultimately expected to vest is recognized as expense in the Corporation’s consolidated statement of comprehensive income over the shorter of requisite service periods or the period through the date that the employee first becomes eligible to retire. Some of the Corporation’s plans contain performance targets that affect vesting and can be achieved after the requisite service period and accounted for as a performance condition. Beginning in 2016, the performance target is not reflected in the estimation of the award’s grant date fair value and compensation cost is recognized in the period in which it becomes probable that the performance condition will be achieved.

Because share-based compensation expense is based on awards that are ultimately expected to vest, share-based compensation expense has been reduced to account for estimated forfeitures. Forfeitures are estimated at the time of grant and revised, if necessary, in subsequent periods if actual forfeitures differ from those estimates.

Variable Interest Entities

Variable Interest Entities

The Corporation has investments in certain partnerships and limited liability entities that qualify as variable interest entities (VIEs). These entities are evaluated on an on-going basis to determine whether they should be consolidated. Consolidation of a VIE is appropriate if a reporting entity holds a controlling financial interest in the VIE. The Corporation has determined that it does not hold a controlling financial interest in any of the VIEs and, therefore, the assets and liabilities of these entities are not consolidated into its financial statements. Instead, investments in these entities are accounted for under the equity method of accounting and are evaluated periodically for impairment. The recorded investment in these entities is reported in other assets on the consolidated balance sheets.

Revenue Recognition

Revenue Recognition

Accounting Standards Update (ASU or Update) 2016-10, Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing, clarifies several aspects of identifying performance obligations and licensing implementation guidance including guidance that is expected to reduce the cost and complexity by eliminating the need to assess whether goods and services are performance obligations if they are immaterial in the context of the contract with the customer.

ASU 2016-08, Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net), clarifies the guidance on principal versus agent considerations when another party is involved in providing goods and services to a customer. The guidance requires a company to determine whether it is required to provide the specific good or service itself or to arrange for that good or service to be provided by another party.

ASU 2014-09, Revenue from Contracts with Customers (Topic 606), modifies the guidance used to recognize revenue from contracts with customers for transfers of goods and services and transfers of nonfinancial assets, unless those contracts are within the scope of other guidance. The guidance also requires new qualitative and quantitative disclosures about contract balances and performance obligations. The Update can be adopted using either the full retrospective method or modified retrospective method. The Corporation intends to use the modified retrospective approach when adopted.

The guidance for these Revenue Recognition Updates is effective for annual periods beginning in the first quarter of 2018. Early application is permitted beginning in the first quarter of 2017. The Corporation is currently assessing the potential impact to its Consolidated Financial Statements.

Investments

Investments

ASU 2016-07, Investments—Equity Method and Joint Ventures (Topic 323): Simplifying the Transition to the Equity Method of Accounting, eliminates the requirement for an investor to retrospectively apply the equity method when an investment that it had accounted for by another method qualifies for use of the equity method. The Update is effective in the first quarter of 2017 with prospective application. Early application is permitted. This Update is not expected to have a material effect on the Consolidated Financial Statements.

Derivative and Hedging Activities

Derivative and Hedging Activities

ASU 2016-06, Derivatives and Hedging (Topic 815): Contingent Put and Call Options in Debt Instruments (a consensus of the Emerging Issues Task Force), provides clarification that determination of whether an embedded contingent put or call option in a financial instrument is clearly and closely related to the debt host requires only an analysis of the four-step decision sequence described in ASC 815-15-25-42. The Update is effective in the first quarter of 2017 with modified retrospective application. Early application is permitted. If an entity is no longer required to bifurcate an embedded derivative as a result of this Update and elects fair value accounting, the effects should be reported as a cumulative-effect adjustment. This Update is not expected to have a material effect on the Consolidated Financial Statements.

ASU 2016-05, Derivatives and Hedging (Topic 815): Effect of Derivative Contract Novations on Existing Hedge Accounting Relationships (a consensus of the Emerging Issues Task Force), clarifies that a change in counterparty to a derivative instrument that has been designated as a hedging instrument under Topic 815 does not, in and of itself, require dedesignation of that hedging relationship provided all other hedge accounting criteria continue to be met. The Update is effective in the first quarter of 2017 with either prospective or modified retrospective application. Early application is permitted. This Update is not expected to have a material effect on the Consolidated Financial Statements.

Extinguishments of Liabilities

Extinguishments of Liabilities

ASU 2016-04, Liabilities—Extinguishments of Liabilities (Subtopic 405-20): Recognition of Breakage for Certain Prepaid Stored-Value Products (a consensus of the Emerging Issues Task Force), requires entities that sell prepaid stored-value products redeemable for goods, services or cash at third-party merchants to recognize breakage. The Update is effective in the first quarter of 2018 with either the modified retrospective method by means of a cumulative-effect adjustment to retained earnings or retrospective application. Early application is permitted. This Update is not expected to have a material effect on the Consolidated Financial Statements.

Leases

Leases

ASU 2016-02, Leases (Topic 842), requires lessees to put most leases on their balance sheet but recognize expenses in the income statement similar to current accounting. In addition, the Update changes the guidance for sale-leaseback transactions, initial direct costs and lease executory costs for most entities. All entities will classify leases to determine how to recognize lease related revenue and expense. The Update is effective in the first quarter of 2019 with modified retrospective application including a number of optional practical expedients. Early application is permitted. The Corporation is currently assessing the potential impact to its Consolidated Financial Statements.

Financial Instruments - Recognition and Measurement

Financial Instruments – Recognition and Measurement

ASU 2016-01, Financial Instruments—Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities, amends the presentation and accounting for certain financial instruments, including liabilities measured at fair value under the fair value option, and equity investments. The guidance also updates fair value presentation and disclosure requirements for financial instruments measured at amortized cost. The Update is effective in the first quarter of 2018 with a cumulative-effect adjustment as of the beginning of the fiscal year of adoption. Early application is prohibited except for the provision requiring the recognition of changes in fair value related to changes in an entity’s own credit risk in other comprehensive income for financial liabilities measured using the fair value option. This Update is not expected to have a material effect on the Consolidated Financial Statements.

ASU 2016-09 [Member]

Stock Based Compensation

Stock Based Compensation

ASU 2016-09, Compensation—Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting, simplifies several aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities and classification on the statement of cash flows. The Update is effective in the first quarter of 2017 by an application method determined by the type of transaction impacted by the adoption. Early application is permitted. The Corporation is currently assessing the potential impact to its Consolidated Financial Statements.

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Mergers and Acquisitions (Tables)

3 Months Ended

Mar. 31, 2016

Business Combinations [Abstract]

Business Acquisition Pro Forma Information

The following pro forma financial information for the three months ended March 31, 2015 reflects the Corporation’s estimated consolidated pro forma results of operations as if the METR acquisition occurred on January 1, 2015, unadjusted for potential cost savings and other business synergies the Corporation expects to receive as a result of the acquisition:

	F.N.B. Corporation		METR		Pro Forma Adjustments			Pro Forma Combined
Revenue (net interest income and non-interest income)	$	160,103	$	33,626	$	(1,061	)	$	192,668
Net income		40,343		5,722		(2,003	)		44,062
Net income available to common stockholders		38,333		5,702		(1,983	)		42,052
Earnings per common share – basic		0.22		0.40		—			0.20
Earnings per common share – diluted		0.22		0.39		—			0.20

Amounts Recorded on Consolidated Balance Sheet in Conjunction with METR Acquisition and BofA Branch Acquisition

The following table summarizes the amounts recorded on the consolidated balance sheet as of each of the acquisition dates in conjunction with the METR acquisition and the BofA branch acquisition discussed above:

	METR		BofA Branches
Fair value of consideration paid	$	404,020	$	—
Fair value of identifiable assets acquired:
Cash and cash equivalents		46,854		148,159
Securities		722,980		—
Loans		1,869,046		842
Other intangible assets		36,801		3,000
Other assets		121,518		1,133
Total identifiable assets acquired		2,797,199		153,134
Fair value of liabilities assumed:
Deposits		2,327,219		154,619
Borrowings		227,539		—
Other liabilities		12,269		—
Total liabilities assumed		2,567,027		154,619
Fair value of net identifiable assets acquired		230,172		(1,485	)
Goodwill recognized (1)	$	173,848	$	1,485

(1) All of the goodwill for both of these transactions has been recorded by FNBPA.

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Securities (Tables)

3 Months Ended

Mar. 31, 2016

Investments, Debt and Equity Securities [Abstract]

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

The amortized cost and fair value of securities are as follows:

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Securities Available for Sale
March 31, 2016
U.S. Treasury	$	29,771	$	223	$	—		$	29,994
U.S. government-sponsored entities		398,497		2,617		(36	)		401,078
Residential mortgage-backed securities:
Agency mortgage-backed securities		1,075,195		12,691		(21	)		1,087,865
Agency collateralized mortgage obligations		524,722		3,812		(2,904	)		525,630
Non-agency collateralized mortgage obligations		1,111		—		(15	)		1,096
Commercial mortgage-backed securities		3,674		—		(1	)		3,673
States of the U.S. and political subdivisions		39,620		283		(99	)		39,804
Other debt securities		9,754		177		(1,023	)		8,908
Total debt securities		2,082,344		19,803		(4,099	)		2,098,048
Equity securities		975		320		—			1,295
	$	2,083,319	$	20,123	$	(4,099	)	$	2,099,343
December 31, 2015
U.S. Treasury	$	29,738	$	58	$	—		$	29,796
U.S. government-sponsored entities		368,463		856		(1,325	)		367,994
Residential mortgage-backed securities:
Agency mortgage-backed securities		703,069		4,594		(2,832	)		704,831
Agency collateralized mortgage obligations		503,328		1,032		(8,530	)		495,830
Non-agency collateralized mortgage obligations		1,177		13		—			1,190
Commercial mortgage-backed securities		4,299		—		(12	)		4,287
States of the U.S. and political subdivisions		10,748		309		—			11,057
Other debt securities		14,729		208		(651	)		14,286
Total debt securities		1,635,551		7,070		(13,350	)		1,629,271
Equity securities		975		324		(3	)		1,296
	$	1,636,526	$	7,394	$	(13,353	)	$	1,630,567

Schedule of Amortized Cost and Fair Value of Securities Held to Maturity

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Securities Available for Sale
March 31, 2016
U.S. Treasury	$	29,771	$	223	$	—		$	29,994
U.S. government-sponsored entities		398,497		2,617		(36	)		401,078
Residential mortgage-backed securities:
Agency mortgage-backed securities		1,075,195		12,691		(21	)		1,087,865
Agency collateralized mortgage obligations		524,722		3,812		(2,904	)		525,630
Non-agency collateralized mortgage obligations		1,111		—		(15	)		1,096
Commercial mortgage-backed securities		3,674		—		(1	)		3,673
States of the U.S. and political subdivisions		39,620		283		(99	)		39,804
Other debt securities		9,754		177		(1,023	)		8,908
Total debt securities		2,082,344		19,803		(4,099	)		2,098,048
Equity securities		975		320		—			1,295
	$	2,083,319	$	20,123	$	(4,099	)	$	2,099,343
December 31, 2015
U.S. Treasury	$	29,738	$	58	$	—		$	29,796
U.S. government-sponsored entities		368,463		856		(1,325	)		367,994
Residential mortgage-backed securities:
Agency mortgage-backed securities		703,069		4,594		(2,832	)		704,831
Agency collateralized mortgage obligations		503,328		1,032		(8,530	)		495,830
Non-agency collateralized mortgage obligations		1,177		13		—			1,190
Commercial mortgage-backed securities		4,299		—		(12	)		4,287
States of the U.S. and political subdivisions		10,748		309		—			11,057
Other debt securities		14,729		208		(651	)		14,286
Total debt securities		1,635,551		7,070		(13,350	)		1,629,271
Equity securities		975		324		(3	)		1,296
	$	1,636,526	$	7,394	$	(13,353	)	$	1,630,567
Securities Held to Maturity
March 31, 2016
U.S. Treasury	$	500	$	184	$	—		$	684
U.S. government-sponsored entities		122,333		1,606		—			123,939
Residential mortgage-backed securities:
Agency mortgage-backed securities		830,640		18,063		(4	)		848,699
Agency collateralized mortgage obligations		520,576		4,123		(2,931	)		521,768
Non-agency collateralized mortgage obligations		2,436		4		(9	)		2,431
Commercial mortgage-backed securities		50,526		1,222		(92	)		51,656
States of the U.S. and political subdivisions		249,009		5,441		(174	)		254,276
	$	1,776,020	$	30,643	$	(3,210	)	$	1,803,453
December 31, 2015
U.S. Treasury	$	500	$	153	$	—		$	653
U.S. government-sponsored entities		137,385		809		(395	)		137,799
Residential mortgage-backed securities:
Agency mortgage-backed securities		709,970		9,858		(1,176	)		718,652
Agency collateralized mortgage obligations		499,694		803		(7,657	)		492,840
Non-agency collateralized mortgage obligations		2,681		14		—			2,695
Commercial mortgage-backed securities		51,258		115		(259	)		51,114
States of the U.S. and political subdivisions		235,573		4,191		(101	)		239,663
	$	1,637,061	$	15,943	$	(9,588	)	$	1,643,416

Gross Gains and Gross Losses Realized on Sales of Securities

Gross gains and gross losses were realized on securities as follows:

	Three Months Ended
	March 31,
	2016		2015
Gross gains	$	71	$	—
Gross losses		—		(9	)
	$	71	$	(9	)

Amortized Cost and Fair Value of Securities, by Contractual Maturities

As of March 31, 2016, the amortized cost and fair value of securities, by contractual maturities, were as follows:

	Available for Sale				Held to Maturity
	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Due in one year or less	$	179	$	180	$	12,126	$	12,140
Due from one to five years		441,067		444,025		114,319		115,578
Due from five to ten years		29,112		29,332		53,587		54,986
Due after ten years		7,284		6,247		191,810		196,195
		477,642		479,784		371,842		378,899
Residential mortgage-backed securities:
Agency mortgage-backed securities		1,075,195		1,087,865		830,640		848,699
Agency collateralized mortgage obligations		524,722		525,630		520,576		521,768
Non-agency collateralized mortgage obligations		1,111		1,096		2,436		2,431
Commercial mortgage-backed securities		3,674		3,673		50,526		51,656
Equity securities		975		1,295		—		—
	$	2,083,319	$	2,099,343	$	1,776,020	$	1,803,453

Summaries of Fair Values and Unrealized Losses of Securities, Segregated by Length of Impairment

Following are summaries of the fair values and unrealized losses of securities, segregated by length of impairment:

	Less than 12 Months							12 Months or More							Total
	#		Fair Value		Unrealized Losses			#		Fair Value		Unrealized Losses			#		Fair Value		Unrealized Losses
Securities Available for Sale
March 31, 2016
U.S. government-sponsored entities		2	$	17,960	$	(36	)		—	$	—	$	—			2	$	17,960	$	(36	)
Residential mortgage-backed securities:
Agency mortgage-backed securities		2		56,402		(21	)		—		—		—			2		56,402		(21	)
Agency collateralized mortgage obligations		2		29,786		(28	)		15		175,354		(2,876	)		17		205,140		(2,904	)
Non-agency collateralized mortgage obligations		1		1,091		(15	)		—		—		—			1		1,091		(15	)
Commercial mortgage-backed securities		1		3,673		(1	)		—		—		—			1		3,673		(1	)
States of the U.S. and political subdivisions		16		21,325		(99	)		—		—		—			16		21,325		(99	)
Other debt securities		—		—		—			3		3,875		(1,023	)		3		3,875		(1,023	)
		24	$	130,237	$	(200	)		18	$	179,229	$	(3,899	)		42	$	309,466	$	(4,099	)
December 31, 2015
U.S. government-sponsored entities		6	$	99,131	$	(814	)		2	$	34,487	$	(511	)		8	$	133,618	$	(1,325	)
Residential mortgage-backed securities:
Agency mortgage-backed securities		19		359,250		(2,832	)		—		—		—			19		359,250		(2,832	)
Agency collateralized mortgage obligations		9		126,309		(1,366	)		18		215,330		(7,164	)		27		341,639		(8,530	)
Commercial mortgage-backed securities		1		4,287		(12	)		—		—		—			1		4,287		(12	)
Other debt securities		—		—		—			3		4,245		(651	)		3		4,245		(651	)
Equity securities		1		632		(3	)		—		—		—			1		632		(3	)
		36	$	589,609	$	(5,027	)		23	$	254,062	$	(8,326	)		59	$	843,671	$	(13,353	)
Securities Held to Maturity
March 31, 2016
Residential mortgage-backed securities:
Agency mortgage-backed securities		1	$	922		(4	)		—	$	—		—			1	$	922	$	(4	)
Agency collateralized mortgage obligations		—		—		—			16		181,913		(2,931	)		16		181,913		(2,931	)
Non-agency collateralized mortgage obligations		2		1,294		(9	)		—		—		—			2		1,294		(9	)
Commercial mortgage-backed securities		1		8,579		(92	)		—		—		—			1		8,579		(92	)
States of the U.S. and political subdivisions		5		10,007		(173	)		1		2,055		(1	)		6		12,062		(174	)
		9	$	20,802	$	(278	)		17	$	183,968	$	(2,932	)		26	$	204,770	$	(3,210	)
December 31, 2015
U.S. government-sponsored entities		3	$	39,843	$	(173	)		1	$	14,778	$	(222	)		4	$	54,621	$	(395	)
Residential mortgage-backed securities:
Agency mortgage-backed securities		17		212,024		(1,159	)		1		917		(17	)		18		212,941		(1,176	)
Agency collateralized mortgage obligations		11		150,593		(1,434	)		14		160,716		(6,223	)		25		311,309		(7,657	)
Commercial mortgage-backed securities		3		46,278		(259	)		—		—		—			3		46,278		(259	)
States of the U.S. and political subdivisions		9		17,616		(101	)		—		—		—			9		17,616		(101	)
		43	$	466,354	$	(3,126	)		16	$	176,411	$	(6,462	)		59	$	642,765	$	(9,588	)

Summary of Cumulative Credit-Related OTTI Charges

The following table presents a summary of the cumulative credit-related OTTI charges recognized as components of earnings for securities for which a portion of an OTTI is recognized in other comprehensive income:

	Equities		Total
For the Three Months Ended March 31, 2016
Beginning balance	$	27	$	27
Loss where impairment was not previously recognized		—		—
Additional loss where impairment was previously recognized		—		—
Reduction due to credit impaired securities sold		—		—
Ending balance	$	27	$	27
For the Three Months Ended March 31, 2015
Beginning balance	$	27	$	27
Loss where impairment was not previously recognized		—		—
Additional loss where impairment was previously recognized		—		—
Reduction due to credit impaired securities sold		—		—
Ending balance	$	27	$	27

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Loans and Leases (Tables)

3 Months Ended

Mar. 31, 2016

Receivables [Abstract]

Summary of Loans and Leases, Net of Unearned Income

Following is a summary of loans and leases, net of unearned income:

	Originated Loans		Acquired Loans		Total Loans and Leases
March 31, 2016
Commercial real estate	$	3,605,301	$	1,648,359	$	5,253,660
Commercial and industrial		2,574,321		471,946		3,046,267
Commercial leases		202,605		—		202,605
Total commercial loans and leases		6,382,227		2,120,305		8,502,532
Direct installment		1,686,037		104,765		1,790,802
Residential mortgages		1,105,680		425,699		1,531,379
Indirect installment		1,025,413		314		1,025,727
Consumer lines of credit		1,034,681		226,812		1,261,493
Other		53,666		—		53,666
	$	11,287,704	$	2,877,895	$	14,165,599

	Originated Loans		Acquired Loans		Total Loans and Leases
December 31, 2015
Commercial real estate	$	3,531,146	$	577,910	$	4,109,056
Commercial and industrial		2,534,351		67,371		2,601,722
Commercial leases		204,553		—		204,553
Total commercial loans and leases		6,270,050		645,281		6,915,331
Direct installment		1,660,717		45,919		1,706,636
Residential mortgages		1,044,689		351,282		1,395,971
Indirect installment		996,175		554		996,729
Consumer lines of credit		1,021,830		115,425		1,137,255
Other		38,518		—		38,518
	$	11,031,979	$	1,158,461	$	12,190,440

Summary of Outstanding Principal Balance and Carrying Amount of Acquired Loans

The outstanding balance and the carrying amount of acquired loans included in the consolidated balance sheet are as follows:

	March 31, 2016		December 31, 2015
Accounted for under ASC 310-30:
Outstanding balance	$	2,849,661	$	1,258,418
Carrying amount		2,485,752		1,011,139
Accounted for under ASC 310-20:
Outstanding balance		403,252		146,161
Carrying amount		386,564		140,595
Total acquired loans:
Outstanding balance		3,252,913		1,404,579
Carrying amount		2,872,316		1,151,734

Summary of Change in Accretable Yield of Acquired Loans

The following table provides changes in accretable yield for all acquired loans accounted for under ASC 310-30. Loans accounted for under ASC 310-20 are not included in this table.

	Three Months Ended March 31,
	2016			2015
Balance at beginning of period	$	256,120		$	331,899
Acquisitions		284,092			—
Reduction due to unexpected early payoffs		(9,375	)		(11,909	)
Reclass from non-accretable difference		10,494			7,676
Disposals/transfers		(260	)		(118	)
Accretion		(13,204	)		(16,264	)
Balance at end of period	$	527,867		$	311,284

Summary of Acquisition of Purchased Loans

The following table reflects amounts at acquisition for all purchased loans subject to ASC 310-30 (impaired and non-impaired) acquired from METR.

	Acquired Impaired Loans			Acquired Performing Loans			Total
Contractually required cash flows at acquisition	$	99,611		$	2,074,623		$	2,174,234
Non-accretable difference (expected losses and foregone interest)		(52,995	)		(248,666	)		(301,661	)
Cash flows expected to be collected at acquisition		46,616			1,825,957			1,872,573
Accretable yield		(1,063	)		(283,029	)		(284,092	)
Basis in acquired loans at acquisition	$	45,553		$	1,542,928		$	1,588,481

Summary of Non-Performing Assets

Following is a summary of non-performing assets:

	March 31, 2016			December 31, 2015
Non-accrual loans	$	63,036		$	49,897
Troubled debt restructurings		21,453			22,028
Total non-performing loans		84,489			71,925
Other real estate owned (OREO)		50,526			38,918
Total non-performing assets	$	135,015		$	110,843
Asset quality ratios:
Non-performing loans as a percent of total loans and leases		0.60	%		0.59	%
Non-performing loans + OREO as a percent of total loans and leases + OREO		0.95	%		0.91	%
Non-performing assets as a percent of total assets		0.66	%		0.63	%

Age Analysis of Past Due Loans, by Class

The following tables provide an analysis of the aging of the Corporation’s past due loans by class, segregated by loans and leases originated and loans acquired:

	30-89 Days Past Due		³ 90 Days Past Due and Still Accruing		Non- Accrual		Total Past Due		Current		Total Loans and Leases
Originated Loans and Leases
March 31, 2016
Commercial real estate	$	9,342	$	1	$	24,083	$	33,426	$	3,571,875	$	3,605,301
Commercial and industrial		4,653		3		24,627		29,283		2,545,038		2,574,321
Commercial leases		1,422		15		894		2,331		200,274		202,605
Total commercial loans and leases		15,417		19		49,604		65,040		6,317,187		6,382,227
Direct installment		6,845		3,463		5,646		15,954		1,670,083		1,686,037
Residential mortgages		7,398		1,545		3,446		12,389		1,093,291		1,105,680
Indirect installment		5,479		369		1,347		7,195		1,018,218		1,025,413
Consumer lines of credit		1,523		661		1,954		4,138		1,030,543		1,034,681
Other		49		63		—		112		53,554		53,666
	$	36,711	$	6,120	$	61,997	$	104,828	$	11,182,876	$	11,287,704
December 31, 2015
Commercial real estate	$	11,006	$	1	$	23,503	$	34,510	$	3,496,636	$	3,531,146
Commercial and industrial		5,409		3		14,382		19,794		2,514,557		2,534,351
Commercial leases		924		—		659		1,583		202,970		204,553
Total commercial loans and leases		17,339		4		38,544		55,887		6,214,163		6,270,050
Direct installment		9,254		3,813		4,806		17,873		1,642,844		1,660,717
Residential mortgages		8,135		1,470		2,882		12,487		1,032,202		1,044,689
Indirect installment		9,472		379		1,361		11,212		984,963		996,175
Consumer lines of credit		2,410		1,189		1,181		4,780		1,017,050		1,021,830
Other		73		169		—		242		38,276		38,518
	$	46,683	$	7,024	$	48,774	$	102,481	$	10,929,498	$	11,031,979

	30-89 Days Past Due		³ 90 Days Past Due and Still Accruing		Non- Accrual		Total Past Due (1) (2)		Current		Discount			Total Loans
Acquired Loans
March 31, 2016
Commercial real estate	$	27,329	$	23,563	$	740	$	51,632	$	1,695,949	$	(99,222	)	$	1,648,359
Commercial and industrial		1,879		6,596		152		8,627		499,764		(36,445	)		471,946
Total commercial loans		29,208		30,159		892		60,259		2,195,713		(135,667	)		2,120,305
Direct installment		2,855		958		—		3,813		97,964		2,988			104,765
Residential mortgages		11,010		15,498		—		26,508		436,528		(37,337	)		425,699
Indirect installment		—		6		—		6		413		(105	)		314
Consumer lines of credit		1,578		1,292		147		3,017		228,682		(4,887	)		226,812
	$	44,651	$	47,913	$	1,039	$	93,603	$	2,959,300	$	(175,008	)	$	2,877,895
December 31, 2015
Commercial real estate	$	6,399	$	12,752	$	931	$	20,082	$	593,128	$	(35,300	)	$	577,910
Commercial and industrial		1,065		616		103		1,784		72,037		(6,450	)		67,371
Total commercial loans		7,464		13,368		1,034		21,866		665,165		(41,750	)		645,281
Direct installment		837		659		—		1,496		43,596		827			45,919
Residential mortgages		5,871		15,136		—		21,007		366,742		(36,467	)		351,282
Indirect installment		32		9		—		41		571		(58	)		554
Consumer lines of credit		830		546		89		1,465		117,443		(3,483	)		115,425
	$	15,034	$	29,718	$	1,123	$	45,875	$	1,193,517	$	(80,931	)	$	1,158,461

(1) Past due information for acquired loans is based on the contractual balance outstanding at March 31, 2016 and December 31, 2015.

(2) Acquired loans are considered performing upon acquisition, regardless of whether the customer is contractually delinquent, as long as the Corporation can reasonably estimate the timing and amount of expected cash flows on such loans. In these instances, the Corporation does not consider acquired contractually delinquent loans to be non-accrual or non-performing and continues to recognize interest income on these loans using the accretion method. Acquired loans are considered non-accrual or non-performing when, due to credit deterioration or other factors, the Corporation determines it is no longer able to reasonably estimate the timing and amount of expected cash flows on such loans. The Corporation does not recognize interest income on acquired loans considered non-accrual or non-performing.

Summary of Commercial Loans and Leases by Credit Quality

The following tables present a summary of the Corporation’s commercial loans and leases by credit quality category, segregated by loans and leases originated and loans acquired:

	Originated Commercial Loan and Lease Credit Quality Categories
	Pass		Special Mention		Substandard		Doubtful		Total
Originated Loans and Leases
March 31, 2016
Commercial real estate	$	3,445,547	$	97,426	$	61,928	$	400	$	3,605,301
Commercial and industrial		2,346,483		114,408		107,818		5,612		2,574,321
Commercial leases		194,947		3,121		4,537		—		202,605
	$	5,986,977	$	214,955	$	174,283	$	6,012	$	6,382,227
December 31, 2015
Commercial real estate	$	3,416,527	$	52,887	$	61,411	$	321	$	3,531,146
Commercial and industrial		2,335,103		109,539		87,380		2,329		2,534,351
Commercial leases		198,207		2,447		3,899		—		204,553
	$	5,949,837	$	164,873	$	152,690	$	2,650	$	6,270,050
Acquired Loans
March 31, 2016
Commercial real estate	$	1,331,863	$	156,709	$	152,929	$	6,858	$	1,648,359
Commercial and industrial		369,178		23,214		77,897		1,657		471,946
	$	1,701,041	$	179,923	$	230,826	$	8,515	$	2,120,305
December 31, 2015
Commercial real estate	$	464,162	$	47,619	$	66,129		—	$	577,910
Commercial and industrial		56,446		3,182		7,743		—		67,371
	$	520,608	$	50,801	$	73,872		—	$	645,281

Summary of Consumer Loans by Payment Status

Following is a table showing originated consumer loans by payment status:

	Originated Consumer Loan Credit Quality by Payment Status
	Performing		Non- Performing		Total
March 31, 2016
Direct installment	$	1,671,896	$	14,141	$	1,686,037
Residential mortgages		1,092,329		13,351		1,105,680
Indirect installment		1,023,909		1,504		1,025,413
Consumer lines of credit		1,031,798		2,883		1,034,681
Other		53,666		—		53,666
	$	4,873,598	$	31,879	$	4,905,477

	Originated Consumer Loan Credit Quality by Payment Status
	Performing		Non- Performing		Total
December 31, 2015
Direct installment	$	1,646,925	$	13,792	$	1,660,717
Residential mortgages		1,031,926		12,763		1,044,689
Indirect installment		994,661		1,514		996,175
Consumer lines of credit		1,019,783		2,047		1,021,830
Other		38,518		—		38,518
	$	4,731,813	$	30,116	$	4,761,929

Summary of Impaired Loans and Leases, by Class

Following is a summary of information pertaining to originated loans and leases considered to be impaired, by class of loan and lease:

	Unpaid Contractual Principal Balance		Recorded Investment With No Specific Reserve		Recorded Investment With Specific Reserve		Total Recorded Investment		Specific Reserve		Average Recorded Investment
At or for the Three Months Ended March 31, 2016
Commercial real estate	$	33,434	$	24,035	$	1,520	$	25,555	$	400	$	25,374
Commercial and industrial		25,965		12,042		12,479		24,521		5,612		19,620
Commercial leases		894		894		—		894		—		—
Total commercial loans and leases		60,293		36,971		13,999		50,970		6,012		44,994
Direct installment		15,135		14,141		—		14,141		—		13,966
Residential mortgages		13,881		13,351		—		13,351		—		13,058
Indirect installment		3,667		1,504		—		1,504		—		1,509
Consumer lines of credit		3,436		2,883		—		2,883		—		2,465
	$	96,412	$	68,850	$	13,999	$	82,849	$	6,012	$	75,992
At or for the Year Ended December 31, 2015
Commercial real estate	$	33,780	$	24,423	$	772	$	25,195	$	321	$	26,143
Commercial and industrial		15,860		9,176		5,543		14,719		2,329		12,298
Commercial leases		659		659		—		659		—		747
Total commercial loans and leases		50,299		34,258		6,315		40,573		2,650		39,188
Direct installment		14,679		13,792		—		13,792		—		13,267
Residential mortgages		13,394		12,763		—		12,763		—		12,896
Indirect installment		3,745		1,514		—		1,514		—		1,401
Consumer lines of credit		2,408		2,047		—		2,047		—		2,198
	$	84,525	$	64,374	$	6,315	$	70,689	$	2,650	$	68,950

Summary of Payment Status of Originated TDRs

Following is a summary of the payment status of originated TDRs:

	March 31, 2016		December 31, 2015
Accruing:
Performing	$	16,508	$	15,165
Non-performing		21,453		22,028
Non-accrual		11,953		8,307
	$	49,914	$	45,500

Summary of Troubled Debt Restructurings by Class of Loans

The majority of TDRs are the result of interest rate concessions for a limited period of time. Following is a summary of originated loans, by class, that have been restructured:

	Three Months Ended March 31, 2016						Three Months Ended March 31, 2015
	Number of Contracts		Pre- Modification Outstanding Recorded Investment		Post- Modification Outstanding Recorded Investment		Number of Contracts		Pre- Modification Outstanding Recorded Investment		Post- Modification Outstanding Recorded Investment
Commercial real estate		4	$	778	$	760		2	$	312	$	196
Commercial and industrial		2		5,565		3,279		—		—		—
Total commercial loans		6		6,343		4,039		2		312		196
Direct installment		145		1,991		1,961		131		1,526		1,484
Residential mortgages		18		968		951		14		581		631
Indirect installment		3		11		12		5		16		16
Consumer lines of credit		20		243		238		16		270		270
		192	$	9,556	$	7,201		168	$	2,705	$	2,597

Summary of Originated Troubled Debt Restructurings by Class of Loans and Leases, Payment Default

Following is a summary of originated TDRs, by class of loans and leases, for which there was a payment default, excluding loans that were either charged-off or cured by period end. Default occurs when a loan is 90 days or more past due and is within 12 months of restructuring.

	Three Months Ended March 31, 2016 (1)				Three Months Ended March 31, 2015 (1)
	Number of Contracts		Recorded Investment		Number of Contracts		Recorded Investment
Commercial real estate		—	$	—		—	$	—
Commercial and industrial		—		—		—		—
Total commercial loans		—		—		—		—
Direct installment		28		175		37		105
Residential mortgages		1		50		2		102
Indirect installment		4		5		3		4
Consumer lines of credit		1		10		1		92
		34	$	240		43	$	303

(1) The recorded investment is as of period end.

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Allowance for Credit Losses (Tables)

3 Months Ended

Mar. 31, 2016

Receivables [Abstract]

Summary of Changes in Allowance for Credit Losses by Loan and Lease Class

Following is a summary of changes in the allowance for credit losses, by loan and lease class:

	Balance at Beginning of Period		Charge- Offs			Recoveries		Net Charge- Offs			Provision for credit losses			Balance at End of Period
Three Months Ended March 31, 2016
Commercial real estate	$	41,741	$	(1,369	)	$	597	$	(772	)	$	2,929		$	43,898
Commercial and industrial		41,023		(298	)		190		(108	)		6,948			47,863
Commercial leases		2,541		(114	)		14		(100	)		377			2,818
Total commercial loans and leases		85,305		(1,781	)		801		(980	)		10,254			94,579
Direct installment		21,587		(2,667	)		454		(2,213	)		1,351			20,725
Residential mortgages		7,909		(85	)		19		(66	)		(33	)		7,810
Indirect installment		9,889		(1,942	)		262		(1,680	)		856			9,065
Consumer lines of credit		9,582		(474	)		56		(418	)		(197	)		8,967
Other		1,013		(554	)		6		(548	)		609			1,074
Total allowance on originated loans and leases		135,285		(7,503	)		1,598		(5,905	)		12,840			142,220
Purchased credit-impaired loans		834		(160	)		—		(160	)		30			704
Other acquired loans		5,893		(221	)		306		85			(1,102	)		4,876
Total allowance on acquired loans		6,727		(381	)		306		(75	)		(1,072	)		5,580
Total allowance	$	142,012	$	(7,884	)	$	1,904	$	(5,980	)	$	11,768		$	147,800
Three Months Ended March 31, 2015
Commercial real estate	$	37,588	$	(1,001	)	$	209	$	(792	)	$	1,996		$	38,792
Commercial and industrial		32,645		(684	)		120		(564	)		722			32,803
Commercial leases		2,398		(93	)		10		(83	)		261			2,576
Total commercial loans and leases		72,631		(1,778	)		339		(1,439	)		2,979			74,171
Direct installment		20,538		(2,433	)		269		(2,164	)		2,830			21,204
Residential mortgages		8,024		(511	)		15		(496	)		943			8,471
Indirect installment		7,504		(1,280	)		302		(978	)		1,131			7,657
Consumer lines of credit		8,496		(410	)		40		(370	)		764			8,890
Other		759		(335	)		11		(324	)		419			854
Total allowance on originated loans and leases		117,952		(6,747	)		976		(5,771	)		9,066			121,247
Purchased credit-impaired loans		660		(64	)		19		(45	)		6			621
Other acquired loans		7,314		(77	)		330		253			(936	)		6,631
Total allowance on acquired loans		7,974		(141	)		349		208			(930	)		7,252
Total allowance	$	125,926	$	(6,888	)	$	1,325	$	(5,563	)	$	8,136		$	128,499

Summary of Individual and Collective Allowance for Credit Losses and Loan and Lease Balances by Class

Following is a summary of the individual and collective originated allowance for credit losses and corresponding loan and lease balances by class:

	Originated Allowance				Originated Loans and Leases Outstanding
	Individually Evaluated for Impairment		Collectively Evaluated for Impairment		Loans and Leases		Individually Evaluated for Impairment		Collectively Evaluated for Impairment
March 31, 2016
Commercial real estate	$	400	$	43,498	$	3,605,301	$	14,260	$	3,591,041
Commercial and industrial		5,612		42,251		2,574,321		19,679		2,554,642
Commercial leases		—		2,818		202,605		—		202,605
Total commercial loans and leases		6,012		88,567		6,382,227		33,939		6,348,288
Direct installment		—		20,725		1,686,037		—		1,686,037
Residential mortgages		—		7,810		1,105,680		—		1,105,680
Indirect installment		—		9,065		1,025,413		—		1,025,413
Consumer lines of credit		—		8,967		1,034,681		—		1,034,681
Other		—		1,074		53,666		—		53,666
	$	6,012	$	136,208	$	11,287,704	$	33,939	$	11,253,765
December 31, 2015
Commercial real estate	$	321	$	41,420	$	3,531,146	$	12,904	$	3,518,242
Commercial and industrial		2,329		38,694		2,534,351		10,802		2,523,549
Commercial leases		—		2,541		204,553		—		204,553
Total commercial loans and leases		2,650		82,655		6,270,050		23,706		6,246,344
Direct installment		—		21,587		1,660,717		—		1,660,717
Residential mortgages		—		7,909		1,044,689		—		1,044,689
Indirect installment		—		9,889		996,175		—		996,175
Consumer lines of credit		—		9,582		1,021,830		—		1,021,830
Other		—		1,013		38,518		—		38,518
	$	2,650	$	132,635	$	11,031,979	$	23,706	$	11,008,273

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Borrowings (Tables)

3 Months Ended

Mar. 31, 2016

Debt Disclosure [Abstract]

Summary of Short-Term Borrowings

Following is a summary of short-term borrowings:

	March 31, 2016		December 31, 2015
Securities sold under repurchase agreements	$	297,562	$	266,732
Federal Home Loan Bank advances		490,000		1,090,000
Federal funds purchased		652,000		568,000
Subordinated notes		124,326		124,164
	$	1,563,888	$	2,048,896

Summary of Long-Term Borrowings

Following is a summary of long-term borrowings:

	March 31, 2016		December 31, 2015
Federal Home Loan Bank advances	$	425,147	$	400,017
Subordinated notes		85,206		84,668
Junior subordinated debt		48,572		58,298
Other subordinated debt		98,520		98,497
	$	657,445	$	641,480

Junior Subordinated Debt Trusts

The following table provides information relating to the Trusts as of March 31, 2016:

	Trust Preferred Securities		Common Securities		Junior Subordinated Debt		Stated Maturity Date		Interest Rate
F.N.B. Statutory Trust II	$	21,500	$	665	$	22,165		6/15/36		2.28	%	Variable; 3-month LIBOR + 165 basis points (bps)
Omega Financial Capital Trust I		26,000		1,114		26,407		10/18/34		2.81	%	Variable; 3-month LIBOR + 219 bps
	$	47,500	$	1,779	$	48,572

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Derivative and Hedging Activities (Tables)

3 Months Ended

Mar. 31, 2016

Schedule of Notional Amounts and Gross Fair Values of Derivative Assets and Derivative Liabilities

The following table presents notional amounts and gross fair values of all derivative assets and derivative liabilities held by the Corporation:

	March 31, 2016						December 31, 2015
	Notional		Fair Value				Notional		Fair Value
	Amount		Asset		Liability		Amount		Asset		Liability
Gross Derivatives
Subject to master netting arrangements:
Interest rate contracts – designated	$	250,000	$	7,859	$	1,341	$	250,000	$	3,178	$	962
Interest rate swaps – not designated		1,373,959		—		80,625		1,262,964		1		50,491
Equity contracts – not designated		1,180		34		—		1,180		18		—
Total subject to master netting arrangements		1,625,139		7,893		81,966		1,514,144		3,197		51,453
Not subject to master netting arrangements:
Interest rate swaps – not designated		1,373,959		80,091		—		1,262,964		49,998		1
Credit risk contracts – not designated		134,204		22		219		114,753		7		133
Equity contracts – not designated		1,180		—		34		1,180		—		18
Total not subject to master netting arrangements		1,509,343		80,113		253		1,378,897		50,005		152
	$	3,134,482	$	88,006	$	82,219	$	2,893,041	$	53,202	$	51,605

Derivative Assets

The following table presents information about derivative assets and derivative liabilities that are subject to enforceable master netting arrangements as well as those not subject to enforceable master netting arrangements:

	Gross Amount		Gross Amounts Offset in the Balance Sheet		Net Amount Presented in the Balance Sheet
March 31, 2016
Derivative Assets
Subject to master netting arrangements:
Interest rate contracts
Designated	$	7,859		—	$	7,859
Not designated		—		—		—
Equity contracts – not designated		34		—		34
Not subject to master netting arrangements:
Interest rate contracts – not designated		80,091		—		80,091
Credit contracts – not designated		22		—		22
	$	88,006		—	$	88,006

December 31, 2015
Derivative Assets
Subject to master netting arrangements:
Interest rate contracts
Designated	$	3,178	—	$	3,178
Not designated		1	—		1
Equity contracts – not designated		18	—		18
Not subject to master netting arrangements:
Interest rate contracts – not designated		49,998	—		49,998
Credit contracts – not designated		7			7
	$	53,202	—	$	53,202

Derivative Liabilities

The following table presents information about derivative assets and derivative liabilities that are subject to enforceable master netting arrangements as well as those not subject to enforceable master netting arrangements:

March 31, 2016

Derivative Liabilities
Subject to master netting arrangements:
Interest rate contracts
Designated	$	1,341	—	$	1,341
Not designated		80,625	—		80,625
Not subject to master netting arrangements:
Interest rate contracts – not designated		—	—		—
Credit contracts – not designated		219	—		219
Equity contracts – not designated		34	—		34
	$	82,219	—	$	82,219

                                      December 31, 2015

Derivative Liabilities
Subject to master netting arrangements:
Interest rate contracts
Designated	$	962	—	$	962
Not designated		50,491	—		50,491
Not subject to master netting arrangements:
Interest rate contracts – not designated		1	—		1
Credit contracts – not designated		133			133
Equity contracts – not designated		18	—		18
	$	51,605	—	$	51,605

Effect of Corporation's Derivative Financial Instruments on Income Statement

The following table presents the effect of certain of the Corporation’s derivative financial instruments on the income statement:

	Income	Three Months Ended
	Statement	March 31,
	Location	2016			2015
Interest Rate Contracts	Interest income—loans and leases	$	687		$	809
Interest Rate Contracts	Interest expense—short-term borrowings		150			—
Interest Rate Swaps	Other income		(41	)		(107	)
Credit Risk Contracts	Other income		(71	)		—

Collateral Held By Counterparty [Member]

Derivative Assets

The following table presents a reconciliation of the net amounts of derivative assets and derivative liabilities presented in the balance sheet to the net amounts that would result in the event of offset:

			Amount Not Offset in the Balance Sheet
	Net Amount Presented in the Balance Sheet		Financial Instruments		Cash Collateral		Net Amount
March 31, 2016
Derivative Assets
Interest rate contracts:
Designated	$	7,859	$	5,052	$	2,807		—
Not designated		—		—		—		—
Equity contracts – not designated		34		34		—		—
	$	7,893	$	5,086	$	2,807		—

December 31, 2015
Derivative Assets
Interest rate contracts:
Designated	$	3,178	$	1,516	$	1,662	—
Not designated		1		1		—	—
Equity contracts – not designated		18		18		—	—
	$	3,197	$	1,535	$	1,662	—

Derivative Liabilities

The following table presents a reconciliation of the net amounts of derivative assets and derivative liabilities presented in the balance sheet to the net amounts that would result in the event of offset:

March 31, 2016

Derivative Liabilities
Interest rate contracts:
Designated	$	1,341	$	—	$	1,341	$	—
Not designated		80,625		31,472		47,487		1,666
	$	81,966	$	31,472	$	48,828	$	1,666

                   December 31, 2015

Derivative Liabilities
Interest rate contracts:
Designated	$	962	$	792	$	170	$	—
Not designated		50,491		24,579		24,632		1,280
	$	51,453	$	25,371	$	24,802	$	1,280

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Commitments, Credit Risk and Contingencies (Tables)

3 Months Ended

Mar. 31, 2016

Commitments and Contingencies Disclosure [Abstract]

Summary of Off-Balance Sheet Credit Risk Information

Following is a summary of off-balance sheet credit risk information:

	March 31, 2016		December 31, 2015
Commitments to extend credit	$	4,463,138	$	3,781,719
Standby letters of credit		118,167		92,979

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Stock Incentive Plans (Tables)

3 Months Ended

Mar. 31, 2016

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Summary of Information Concerning Restricted Stock Awards

The following table summarizes certain information concerning restricted stock awards:

	Three Months Ended March 31,
	2016					2015
	Awards			Weighted Average Grant Price		Awards			Weighted Average Grant Price
Unvested awards outstanding at beginning of period		1,548,444		$	12.85		1,354,093		$	11.86
Net adjustment due to performance		—			—		(46,956	)		10.25
Vested		(363,799	)		12.07		(458,450	)		10.60
Forfeited		(6,368	)		12.79		(2,357	)		17.93
Dividend reinvestment		10,870			11.50		7,656			14.24
Unvested awards outstanding at end of period		1,189,147			13.08		853,986			12.63

Components of Restricted Stock Awards

The components of the restricted stock awards as of March 31, 2016 are as follows:

	Service- Based Awards		Performance- Based Awards		Total
Unvested awards		514,702		674,445		1,189,147
Unrecognized compensation expense	$	3,178	$	4,919	$	8,097
Intrinsic value	$	6,696	$	8,775	$	15,471
Weighted average remaining life (in years)		1.69		2.37		2.08

Summary of Information Concerning Stock Option Awards

The following table summarizes certain information concerning stock option awards:

	Three Months Ended March 31,
	2016					2015
	Shares			Weighted Average Exercise Price		Shares			Weighted Average Exercise Price
Options outstanding at beginning of period		435,340		$	8.86		568,834		$	8.86
Assumed from acquisitions		1,707,036			7.83		—			—
Exercised		(24,806	)		6.38		(60,094	)		5.04
Forfeited		(92,650	)		6.69		(2,182	)		4.34
Options outstanding and exercisable at end of period		2,024,920			8.12		506,558			9.33

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Retirement Plans (Tables)

3 Months Ended

Mar. 31, 2016

Compensation and Retirement Disclosure [Abstract]

Net Periodic Benefit Credit for Defined Benefit Plans

The net periodic benefit credit for the defined benefit plans includes the following components:

	Three Months Ended
	March 31,
	2016			2015
Service cost	$	(4	)	$	17
Interest cost		1,544			1,477
Expected return on plan assets		(2,353	)		(2,491	)
Amortization:
Unrecognized prior service cost		2			2
Unrecognized loss		608			536
Net periodic pension credit	$	(203	)	$	(459	)

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Comprehensive Income (Tables)

3 Months Ended

Mar. 31, 2016

Equity [Abstract]

Components of Comprehensive Income, Net of Related Tax

The components of comprehensive income, net of related tax, are as follows:

	Three Months Ended
	March 31,
	2016			2015
Net income	$	26,132		$	40,343
Other comprehensive income:
Securities available for sale:
Unrealized gains arising during the period, net of tax expense of $7,719 and $4,523		14,335			8,400
Reclassification adjustment for (gains) losses included in net income, net of tax expense of $25 and $(3)		(46	)		6
Derivative instruments:
Unrealized gains arising during the period, net of tax expense of $1,693 and $1,504		3,145			2,793
Reclassification adjustment for gains included in net income, net of tax expense of $188 and $283		(349	)		(526	)
Pension and postretirement benefit obligations:
Unrealized gains arising during the period, net of tax expense of $214 and $189		397			350
Other comprehensive income		17,482			11,023
Comprehensive income	$	43,614		$	51,366

Changes in AOCI, Net of Tax, by Component

The following table presents changes in AOCI, net of tax, by component:

	Unrealized Net Gains (Losses) on Securities Available for Sale			Unrealized Net Gains (Losses) on Derivative Instruments			Unrecognized Pension and Postretirement Obligations			Total
Three Months Ended March 31, 2016
Balance at beginning of period	$	(3,873	)	$	1,440		$	(48,700	)	$	(51,133	)
Other comprehensive income before reclassifications		14,335			3,145			397			17,877
Amounts reclassified from AOCI		(46	)		(349	)		—			(395	)
Net current period other comprehensive income		14,289			2,796			397			17,482
Balance at end of period	$	10,416		$	4,236		$	(48,303	)	$	(33,651	)

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Earnings per Common Share (Tables)

3 Months Ended

Mar. 31, 2016

Earnings Per Share [Abstract]

Computation of Basic and Diluted Earnings Per Common Share

The following table sets forth the computation of basic and diluted earnings per common share:

	Three Months Ended
	March 31,
	2016		2015
Net income	$	26,132	$	40,343
Less: Preferred stock dividends		2,010		2,010
Net income available to common stockholders	$	24,122	$	38,333
Basic weighted average common shares outstanding		193,585,702		174,152,283
Net effect of dilutive stock options, warrants, restricted stock and convertible debt		1,292,220		1,673,693
Diluted weighted average common shares outstanding		194,877,922		175,825,976
Earnings per common share:
Basic	$	0.12	$	0.22
Diluted	$	0.12	$	0.22

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Cash Flow Information (Tables)

3 Months Ended

Mar. 31, 2016

Supplemental Cash Flow Elements [Abstract]

Summary of Supplemental Cash Flow Information

Following is a summary of supplemental cash flow information:

	2016		2015
Three Months Ended March 31
Interest paid on deposits and other borrowings	$	13,794	$	11,626
Income taxes paid		—		—
Transfers of loans to other real estate owned		8,049		1,965
Financing of other real estate owned sold		62		166

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Business Segments (Tables)

3 Months Ended

Mar. 31, 2016

Segment Reporting [Abstract]

Financial Information for Segments of Corporation

The following tables provide financial information for these segments of the Corporation. The information provided under the caption “Parent and Other” represents operations not considered to be reportable segments and/or general operating expenses of the Corporation, and includes the parent company, other non-bank subsidiaries and eliminations and adjustments which are necessary for purposes of reconciliation to the consolidated amounts.

	Community Banking		Wealth Management		Insurance		Consumer Finance		Parent and Other			Consolidated
At or for the Three Months Ended March 31, 2016
Interest income	$	143,978	$	—	$	22	$	9,785	$	1,969		$	155,754
Interest expense		12,594		—		—		941		1,865			15,400
Net interest income		131,384		—		22		8,844		104			140,354
Provision for credit losses		9,917		—		—		1,526		325			11,768
Non-interest income		31,233		8,816		4,194		716		1,085			46,044
Non-interest expense		118,048		7,089		3,301		5,204		357			133,999
Intangible amortization		2,441		65		143		—		—			2,649
Income tax expense (benefit)		10,117		605		275		1,112		(259	)		11,850
Net income (loss)		22,094		1,057		497		1,718		766			26,132
Total assets		20,151,815		20,540		21,680		188,547		(58,058	)		20,324,524
Total intangibles		1,062,079		10,383		12,779		1,809		—			1,087,050

	Community Banking		Wealth Management		Insurance			Consumer Finance		Parent and Other			Consolidated
At or for the Three Months Ended March 31, 2015
Interest income	$	122,118	$	—	$	23		$	9,593	$	1,635		$	133,369
Interest expense		9,941		—		—			860		647			11,448
Net interest income		112,177		—		23			8,733		988			121,921
Provision for credit losses		6,327		—		—			1,574		235			8,136
Non-interest income		27,301		8,387		3,593			676		(1,775	)		38,182
Non-interest expense		77,079		6,493		4,170			4,808		(10	)		92,540
Intangible amortization		1,947		68		100			—		—			2,115
Income tax expense (benefit)		15,931		658		(226	)		1,149		(543	)		16,969
Net income (loss)		38,194		1,168		(428	)		1,878		(469	)		40,343
Total assets		16,100,851		21,125		18,464			182,662		(44,254	)		16,278,848
Total intangibles		852,764		10,652		10,021			1,809		—			875,246

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Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2016

Fair Value Disclosures [Abstract]

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

The following table presents the balances of assets and liabilities measured at fair value on a recurring basis:

	Level 1		Level 2		Level 3		Total
March 31, 2016
Assets Measured at Fair Value
Available for sale debt securities:
U.S. Treasury	$	—	$	29,994	$	—	$	29,994
U.S. government-sponsored entities		—		401,078		—		401,078
Residential mortgage-backed securities:
Agency mortgage-backed securities		—		1,087,865		—		1,087,865
Agency collateralized mortgage obligations		—		525,630		—		525,630
Non-agency collateralized mortgage obligations		—		5		1,091		1,096
Commercial mortgage-backed securities		—		3,673		—		3,673
States of the U.S. and political subdivisions		—		39,804		—		39,804
Other debt securities		—		8,908		—		8,908
		—		2,096,957		1,091		2,098,048
Available for sale equity securities:
Financial services industry		102		636		424		1,162
Insurance services industry		133		—		—		133
		235		636		424		1,295
		235		2,097,593		1,515		2,099,343
Derivative financial instruments:
Trading		—		80,125		—		80,125
Not for trading		—		7,881		—		7,881
		—		88,006		—		88,006
	$	235	$	2,185,599	$	1,515	$	2,187,349
Liabilities Measured at Fair Value
Derivative financial instruments:
Trading		—	$	80,659		—	$	80,659
Not for trading		—		1,560		—		1,560
		—	$	82,219		—	$	82,219

	Level 1		Level 2		Level 3		Total
December 31, 2015
Assets Measured at Fair Value
Available for sale debt securities:
U.S. Treasury	$	—	$	29,796	$	—	$	29,796
U.S. government-sponsored entities		—		367,994		—		367,994
Residential mortgage-backed securities:
Agency mortgage-backed securities		—		704,831		—		704,831
Agency collateralized mortgage obligations		—		495,830		—		495,830
Non-agency collateralized mortgage obligations		—		6		1,184		1,190
Commercial mortgage-backed securities		—		4,287		—		4,287
States of the U.S. and political subdivisions		—		11,057		—		11,057
Other debt securities		—		14,286		—		14,286
		—		1,628,087		1,184		1,629,271
Available for sale equity securities:
Financial services industry		97		632		439		1,168
Insurance services industry		128		—		—		128
		225		632		439		1,296
		225		1,628,719		1,623		1,630,567
Derivative financial instruments:
Trading		—		50,017		—		50,017
Not for trading		—		3,185		—		3,185
		—		53,202		—		53,202
	$	225	$	1,681,921	$	1,623	$	1,683,769
Liabilities Measured at Fair Value
Derivative financial instruments:
Trading		—	$	50,510		—	$	50,510
Not for trading		—		1,095		—		1,095
		—	$	51,605		—	$	51,605

Additional Information about Assets Measured at Fair Value on Recurring Basis

The following table presents additional information about assets measured at fair value on a recurring basis and for which the Corporation has utilized Level 3 inputs to determine fair value:

	Equity Securities			Residential Non-Agency Collateralized Mortgage Obligations			Total
Three Months Ended March 31, 2016
Balance at beginning of period	$	439		$	1,184		$	1,623
Total gains (losses) – realized/unrealized:
Included in earnings		—			—			—
Included in other comprehensive income		(15	)		(28	)		(43	)
Accretion included in earnings		—			2			2
Purchases, issuances, sales and settlements:
Purchases		—			—			—
Issuances		—			—			—
Sales/redemptions		—			—			—
Settlements		—			(67	)		(67	)
Transfers from Level 3		—			—			—
Transfers into Level 3		—			—			—
Balance at end of period	$	424		$	1,091		$	1,515
Year Ended December 31, 2015
Balance at beginning of period	$	475		$	1,420		$	1,895
Total gains (losses) – realized/unrealized:
Included in earnings		—			—			—
Included in other comprehensive income		20			(4	)		16
Accretion included in earnings		—			5			5
Purchases, issuances, sales and settlements:
Purchases		—			—			—
Issuances		—			—			—
Sales/redemptions		—			—			—
Settlements		—			(237	)		(237	)
Transfers from Level 3		(56	)		—			(56	)
Transfers into Level 3		—			—			—
Balance at end of period	$	439		$	1,184		$	1,623

Additional Information about Assets Measured at Fair Value on Non-Recurring Basis

For assets measured at fair value on a non-recurring basis still held at the balance sheet date, the following table provides the hierarchy level and the fair value of the related assets or portfolios:

	Level 1		Level 2		Level 3		Total
March 31, 2016
Impaired loans		—	$	957	$	7,257	$	8,214
Other real estate owned		—		1,148		868		2,016
December 31, 2015
Impaired loans		—		124		3,704		3,828
Other real estate owned		—		5,705		2,126		7,831

Fair Values of Corporation's Financial Instruments

The fair values of the Corporation’s financial instruments are as follows:

	Carrying				Fair Value Measurements
	Amount		Fair Value		Level 1		Level 2		Level 3
March 31, 2016
Financial Assets
Cash and cash equivalents	$	345,945	$	345,945	$	345,945	$	—	$	—
Securities available for sale		2,099,343		2,099,343		235		2,097,593		1,515
Securities held to maturity		1,776,020		1,803,453		—		1,801,022		2,431
Net loans and leases, including loans held for sale		14,025,482		13,969,315		—		—		13,969,315
Derivative assets		88,006		88,006		—		88,006		—
Accrued interest receivable		53,609		53,609		53,609		—		—
Financial Liabilities
Deposits		15,390,483		15,397,218		12,700,899		2,696,319		—
Short-term borrowings		1,563,888		1,563,947		1,563,947		—		—
Long-term borrowings		657,445		656,929		—		—		656,929
Derivative liabilities		82,219		82,219		—		82,219		—
Accrued interest payable		9,063		9,063		9,063		—		—

	Carrying				Fair Value Measurements
	Amount		Fair Value		Level 1		Level 2		Level 3
December 31, 2015
Financial Assets
Cash and cash equivalents	$	489,119	$	489,119	$	489,119	$	—	$	—
Securities available for sale		1,630,567		1,630,567		225		1,628,719		1,623
Securities held to maturity		1,637,061		1,643,416		—		1,640,721		2,695
Net loans and leases, including loans held for sale		12,053,209		11,863,882		—		—		11,863,882
Derivative assets		53,202		53,202		—		53,202		—
Accrued interest receivable		44,920		44,920		44,920		—		—
Financial Liabilities
Deposits		12,623,463		12,610,914		10,157,997		2,452,917		—
Short-term borrowings		2,048,896		2,048,943		2,048,943		—		—
Long-term borrowings		641,480		637,935		—		—		637,935
Derivative liabilities		51,605		51,605		—		51,605		—
Accrued interest payable		7,457		7,457		7,457		—		—

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Nature of Operations (Additional Information) (Detail)	3 Months Ended
	Mar. 31, 2016 State Office Location
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of states, Company operating financial services | State	6
Number of metropolitan areas, Company operating financial services | Location	3
Number of consumer finance offices	76
Number of banking offices	317

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Mergers and Acquisitions - Additional Information (Detail) $ in Thousands				3 Months Ended
	Apr. 22, 2016 USD ($) Branch	Feb. 13, 2016 USD ($) shares	Sep. 18, 2015 USD ($) Branch	Mar. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)
Business Acquisition [Line Items]
Number of branch-banking locations acquired | Branch			5
Deposits acquired as a result of merger			$ 154,619
Goodwill recorded as a result of merger				$ 1,006,934	$ 833,086
Assets acquired as a result of merger			154,619
Merger-related expenses				24,940
Cash acquired as a result of merger			148,159
Goodwill and intangible assets acquired as a result of merger			4,485
Fixed and other assets acquired as a result of merger			$ 1,975
Percentage of premium on acquired loan			1.94%
Goodwill deductible for tax purposes			$ 1,485
Metro Bancorp Inc [Member]
Business Acquisition [Line Items]
Loans acquired as a result of merger		$ 1,869,046
Deposits acquired as a result of merger		2,327,219
Goodwill recorded as a result of merger		173,848
Core deposit intangibles recorded as result of the acquisition		36,801
Value of acquisition		$ 404,020
Common shares issued | shares		34,041,181
Common shares acquired | shares		14,345,319
Assets acquired as a result of merger		$ 2,797,199
Merger-related expenses				24,577
Issuance costs incurred in connection with acquisition				$ 743
Cash acquired as a result of merger		$ 46,854
Metro Bancorp Inc [Member] | Merger - Related Expenses [Member]
Business Acquisition [Line Items]
Severance costs				50.90%
Fifth Third Bank [Member] | Subsequent Event [Member]
Business Acquisition [Line Items]
Number of branch-banking locations acquired | Branch	17
Loans acquired as a result of merger	$ 99,500
Deposits acquired as a result of merger	302,000
Goodwill recorded as a result of merger	10,798
Core deposit intangibles recorded as result of the acquisition	$ 5,200

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Mergers and Acquisitions - Business Acquisition Pro Forma Information (Detail) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2016 USD ($) $ / shares
Business Acquisition Pro Forma Information [Line Items]
Revenue (net interest income and non-interest income)	$ 192,668
Net income	44,062
Net income available to common stockholders	$ 42,052
Earnings per common share - basic | $ / shares	$ 0.20
Earnings per common share - diluted | $ / shares	$ 0.20
F.N.B. Corporation [Member]
Business Acquisition Pro Forma Information [Line Items]
Revenue (net interest income and non-interest income)	$ 160,103
Net income	40,343
Net income available to common stockholders	$ 38,333
Earnings per common share - basic | $ / shares	$ 0.22
Earnings per common share - diluted | $ / shares	$ 0.22
Metro Bancorp Inc [Member]
Business Acquisition Pro Forma Information [Line Items]
Revenue (net interest income and non-interest income)	$ 33,626
Net income	5,722
Net income available to common stockholders	$ 5,702
Earnings per common share - basic | $ / shares	$ 0.40
Earnings per common share - diluted | $ / shares	$ 0.39
Proforma Adjustments [Member]
Business Acquisition Pro Forma Information [Line Items]
Revenue (net interest income and non-interest income)	$ (1,061)
Net income	(2,003)
Net income available to common stockholders	$ (1,983)

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Mergers and Acquisitions - Amounts Recorded on Consolidated Balance Sheet in Conjunction with Acquisition (Detail) - USD ($) $ in Thousands	Feb. 13, 2016	Sep. 18, 2015
Business Acquisition [Line Items]
Cash and cash equivalents		$ 148,159
Total identifiable assets acquired		154,619
Deposits		154,619
Metro Bancorp Inc [Member]
Business Acquisition [Line Items]
Fair value of consideration paid	$ 404,020
Cash and cash equivalents	46,854
Securities	722,980
Loans	1,869,046
Other intangible assets	36,801
Other assets	121,518
Total identifiable assets acquired	2,797,199
Deposits	2,327,219
Borrowings	227,539
Other liabilities	12,269
Total liabilities assumed	2,567,027
Fair value of net identifiable assets acquired	230,172
Goodwill recognized	$ 173,848
Bank of America [Member]
Business Acquisition [Line Items]
Cash and cash equivalents		148,159
Loans		842
Other intangible assets		3,000
Other assets		1,133
Total identifiable assets acquired		153,134
Deposits		154,619
Total liabilities assumed		154,619
Fair value of net identifiable assets acquired		(1,485)
Goodwill recognized		$ 1,485

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Securities - Schedule of Amortized Cost and Fair Value of Securities Available for Sale (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Securities Available For Sale, Amortized Cost	$ 2,083,319	$ 1,636,526
Securities Available For Sale, Gross Unrealized Gains	20,123	7,394
Securities Available For Sale, Gross Unrealized Losses	(4,099)	(13,353)
Securities Available For Sale, Fair Value	2,099,343	1,630,567
U.S. Treasury [Member]
Schedule of Available-for-sale Securities [Line Items]
Securities Available For Sale, Amortized Cost	29,771	29,738
Securities Available For Sale, Gross Unrealized Gains	223	58
Securities Available For Sale, Fair Value	29,994	29,796
U.S. Government-Sponsored Entities [Member]
Schedule of Available-for-sale Securities [Line Items]
Securities Available For Sale, Amortized Cost	398,497	368,463
Securities Available For Sale, Gross Unrealized Gains	2,617	856
Securities Available For Sale, Gross Unrealized Losses	(36)	(1,325)
Securities Available For Sale, Fair Value	401,078	367,994
Agency Mortgage-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Securities Available For Sale, Amortized Cost	1,075,195	703,069
Securities Available For Sale, Gross Unrealized Gains	12,691	4,594
Securities Available For Sale, Gross Unrealized Losses	(21)	(2,832)
Securities Available For Sale, Fair Value	1,087,865	704,831
Securities Available For Sale, Fair Value	1,087,865
Agency Collateralized Mortgage Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Securities Available For Sale, Amortized Cost	524,722	503,328
Securities Available For Sale, Gross Unrealized Gains	3,812	1,032
Securities Available For Sale, Gross Unrealized Losses	(2,904)	(8,530)
Securities Available For Sale, Fair Value	525,630	495,830
Securities Available For Sale, Fair Value	525,630
Non-Agency Collateralized Mortgage Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Securities Available For Sale, Amortized Cost	1,111	1,177
Securities Available For Sale, Gross Unrealized Gains		13
Securities Available For Sale, Gross Unrealized Losses	(15)
Securities Available For Sale, Fair Value	1,096	1,190
Securities Available For Sale, Fair Value	1,096
Commercial Mortgage-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Securities Available For Sale, Amortized Cost	3,674	4,299
Securities Available For Sale, Gross Unrealized Losses	(1)	(12)
Securities Available For Sale, Fair Value	3,673	4,287
Securities Available For Sale, Fair Value	3,673
States of the U.S. and Political Subdivisions [Member]
Schedule of Available-for-sale Securities [Line Items]
Securities Available For Sale, Amortized Cost	39,620	10,748
Securities Available For Sale, Gross Unrealized Gains	283	309
Securities Available For Sale, Gross Unrealized Losses	(99)
Securities Available For Sale, Fair Value	39,804	11,057
Other Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Securities Available For Sale, Amortized Cost	9,754	14,729
Securities Available For Sale, Gross Unrealized Gains	177	208
Securities Available For Sale, Gross Unrealized Losses	(1,023)	(651)
Securities Available For Sale, Fair Value	8,908	14,286
Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Securities Available For Sale, Amortized Cost	2,082,344	1,635,551
Securities Available For Sale, Gross Unrealized Gains	19,803	7,070
Securities Available For Sale, Gross Unrealized Losses	(4,099)	(13,350)
Securities Available For Sale, Fair Value	2,098,048	1,629,271
Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Securities Available For Sale, Amortized Cost	975	975
Securities Available For Sale, Gross Unrealized Gains	320	324
Securities Available For Sale, Gross Unrealized Losses		(3)
Securities Available For Sale, Fair Value	1,295	$ 1,296
Securities Available For Sale, Fair Value	$ 1,295

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Securities - Schedule of Amortized Cost and Fair Value of Securities Held to Maturity (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Investment Securities Held To Maturity [Line Items]
Securities Held To Maturity, Amortized Cost	$ 1,776,020	$ 1,637,061
Securities Held To Maturity, Gross Unrealized Gains	30,643	15,943
Securities Held To Maturity, Gross Unrealized Losses	(3,210)	(9,588)
Securities held to maturity, fair value	1,803,453	1,643,416
U.S. Treasury [Member]
Investment Securities Held To Maturity [Line Items]
Securities Held To Maturity, Amortized Cost	500	500
Securities Held To Maturity, Gross Unrealized Gains	184	153
Securities held to maturity, fair value	684	653
U.S. Government-Sponsored Entities [Member]
Investment Securities Held To Maturity [Line Items]
Securities Held To Maturity, Amortized Cost	122,333	137,385
Securities Held To Maturity, Gross Unrealized Gains	1,606	809
Securities Held To Maturity, Gross Unrealized Losses		(395)
Securities held to maturity, fair value	123,939	137,799
Agency Mortgage-Backed Securities [Member]
Investment Securities Held To Maturity [Line Items]
Securities Held To Maturity, Amortized Cost	830,640	709,970
Securities Held To Maturity, Gross Unrealized Gains	18,063	9,858
Securities Held To Maturity, Gross Unrealized Losses	(4)	(1,176)
Securities held to maturity, fair value	848,699	718,652
Agency Collateralized Mortgage Obligations [Member]
Investment Securities Held To Maturity [Line Items]
Securities Held To Maturity, Amortized Cost	520,576	499,694
Securities Held To Maturity, Gross Unrealized Gains	4,123	803
Securities Held To Maturity, Gross Unrealized Losses	(2,931)	(7,657)
Securities held to maturity, fair value	521,768	492,840
Non-Agency Collateralized Mortgage Obligations [Member]
Investment Securities Held To Maturity [Line Items]
Securities Held To Maturity, Amortized Cost	2,436	2,681
Securities Held To Maturity, Gross Unrealized Gains	4	14
Securities Held To Maturity, Gross Unrealized Losses	(9)
Securities held to maturity, fair value	2,431	2,695
Commercial Mortgage-Backed Securities [Member]
Investment Securities Held To Maturity [Line Items]
Securities Held To Maturity, Amortized Cost	50,526	51,258
Securities Held To Maturity, Gross Unrealized Gains	1,222	115
Securities Held To Maturity, Gross Unrealized Losses	(92)	(259)
Securities held to maturity, fair value	51,656	51,114
States of the U.S. and Political Subdivisions [Member]
Investment Securities Held To Maturity [Line Items]
Securities Held To Maturity, Amortized Cost	249,009	235,573
Securities Held To Maturity, Gross Unrealized Gains	5,441	4,191
Securities Held To Maturity, Gross Unrealized Losses	(174)	(101)
Securities held to maturity, fair value	$ 254,276	$ 239,663

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Securities - Gross Gains and Gross Losses Realized on Sales of Securities (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Investments, Debt and Equity Securities [Abstract]
Gross gains	$ 71
Gross losses		$ (9)
Total	$ 71	$ (9)

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Securities - Amortized Cost and Fair Value of Securities, by Contractual Maturities (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Schedule Of Securities [Line Items]
Available for Sale, Due in one year or less, Amortized Cost	$ 179
Available for Sale, Due from one to five years, Amortized Cost	441,067
Available for Sale, Due from five to ten years, Amortized Cost	29,112
Available for Sale, Due after ten years, Amortized Cost	7,284
Available for Sale, with contractual maturities, Amortized Cost	477,642
Total securities available for sale, Amortized Cost	2,083,319	$ 1,636,526
Available for Sale, Due in one year or less, Fair Value	180
Available for Sale, Due from one to five years, Fair Value	444,025
Available for Sale, Due from five to ten years, Fair Value	29,332
Available for Sale, Due after ten years, Fair Value	6,247
Available for Sale, with contractual maturities, Fair Value	479,784
Total available for sale Securities, Fair Value	2,099,343	1,630,567
Held to Maturity, Due in one year or less, Amortized Cost	12,126
Held to Maturity, Due from one to five years, Amortized Cost	114,319
Held to Maturity, Due from five to ten years, Amortized Cost	53,587
Held to Maturity, Due after ten years, Amortized Cost	191,810
Securities Held To Maturity, with contractual maturities, Amortized Cost	371,842
Held to Maturity, with contractual maturities, Amortized Cost	1,776,020	1,637,061
Held to Maturity, Due in one year or less, Fair Value	12,140
Held to Maturity, Due from one to five years, Fair Value	115,578
Held to Maturity, Due from five to ten years, Fair Value	54,986
Held to Maturity, Due after ten years, Fair Value	196,195
Securities Held To Maturity, with contractual maturities, Fair Value	378,899
Held to Maturity, with contractual maturities, Fair Value	1,803,453	1,643,416
Agency Mortgage-Backed Securities [Member]
Schedule Of Securities [Line Items]
Total securities available for sale, Amortized Cost	1,075,195	703,069
Total available for sale Securities, Fair Value	1,087,865
Held to Maturity, with contractual maturities, Amortized Cost	830,640	709,970
Held to Maturity, with contractual maturities, Fair Value	848,699	718,652
Agency Collateralized Mortgage Obligations [Member]
Schedule Of Securities [Line Items]
Total securities available for sale, Amortized Cost	524,722	503,328
Total available for sale Securities, Fair Value	525,630
Held to Maturity, with contractual maturities, Amortized Cost	520,576	499,694
Held to Maturity, with contractual maturities, Fair Value	521,768	492,840
Non-Agency Collateralized Mortgage Obligations [Member]
Schedule Of Securities [Line Items]
Total securities available for sale, Amortized Cost	1,111	1,177
Total available for sale Securities, Fair Value	1,096
Held to Maturity, with contractual maturities, Amortized Cost	2,436	2,681
Held to Maturity, with contractual maturities, Fair Value	2,431	2,695
Commercial Mortgage-Backed Securities [Member]
Schedule Of Securities [Line Items]
Total securities available for sale, Amortized Cost	3,674	4,299
Total available for sale Securities, Fair Value	3,673
Held to Maturity, with contractual maturities, Amortized Cost	50,526	51,258
Held to Maturity, with contractual maturities, Fair Value	51,656	51,114
Equity Securities [Member]
Schedule Of Securities [Line Items]
Total securities available for sale, Amortized Cost	975	$ 975
Total available for sale Securities, Fair Value	$ 1,295

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Securities - Additional Information (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Schedule Of Securities [Line Items]
Securities pledged to secure public deposits, trust deposits and for other purposes, carrying value	$ 2,472,531,000		$ 1,728,939,000
Securities pledged as collateral for short-term borrowings, carrying value	$ 361,338,000		$ 272,629,000
Percentage of securities held as collateral at fair value	73.10%		61.30%
Impairment losses on securities	$ 0	$ 0
Municipal bond portfolio, carrying amount	$ 288,813,000
Percentage of formal credit enhancement insurance of municipalities	81.00%
Municipal Bonds [Member] | Weighted Average [Member]
Schedule Of Securities [Line Items]
Average holding size of securities in bond portfolio	$ 1,730,000
Municipal Bonds [Member] | Credit Concentration Risk [Member] | General Obligation Bonds [Member]
Schedule Of Securities [Line Items]
Percentage of portfolio	99.80%
Municipal Bonds [Member] | Credit Concentration Risk [Member] | General Obligation Bonds [Member] | A Rating [Member] | Minimum [Member]
Schedule Of Securities [Line Items]
Percentage of portfolio	97.00%
Municipal Bonds [Member] | Geographic Concentration Risk [Member] | Pennsylvania, Ohio and Maryland [Member]
Schedule Of Securities [Line Items]
Percentage of portfolio	94.80%

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Securities - Summaries of Fair Values and Unrealized Losses of Securities, Segregated by Length of Impairment (Detail) $ in Thousands	Mar. 31, 2016 USD ($) Security	Dec. 31, 2015 USD ($) Security
Schedule Of Securities [Line Items]
Number of available for sale securities, Less than 1 year | Security	24	36
Number of available for sale securities, Greater than 1 year | Security	18	23
Number of available for sale securities | Security	42	59
Securities Available For Sale, Less than 12 Months, Fair Value	$ 130,237	$ 589,609
Securities Available For Sale, Less than 12 Months, Unrealized Losses	(200)	(5,027)
Securities Available For Sale, 12 Months or More, Fair Value	179,229	254,062
Securities Available For Sale, 12 Months or More, Unrealized Losses	(3,899)	(8,326)
Securities Available For Sale, Fair Value, Total	309,466	843,671
Securities Available For Sale, Unrealized Losses, Total	$ (4,099)	$ (13,353)
Number of held to maturity securities | Security	26	59
Securities Held To Maturity, Less than 12 Months, Fair Value	$ 20,802	$ 466,354
Securities Held To Maturity, Less than 12 Months, Unrealized Losses	(278)	(3,126)
Securities Held To Maturity, Greater than 12 Months, Fair Value	183,968	176,411
Securities Held To Maturity, Greater than 12 Months, Unrealized Losses	(2,932)	(6,462)
Securities Held To Maturity, Fair Value, Total	204,770	642,765
Securities Held To Maturity, Unrealized Losses, Total	$ (3,210)	$ (9,588)
Less than 12 Months [Member]
Schedule Of Securities [Line Items]
Number of held to maturity securities | Security	9	43
Greater than 12 Months [Member]
Schedule Of Securities [Line Items]
Number of held to maturity securities | Security	17	16
U.S. Government-Sponsored Entities [Member]
Schedule Of Securities [Line Items]
Number of available for sale securities, Less than 1 year | Security	2	6
Number of available for sale securities, Greater than 1 year | Security		2
Number of available for sale securities | Security	2	8
Securities Available For Sale, Less than 12 Months, Fair Value	$ 17,960	$ 99,131
Securities Available For Sale, Less than 12 Months, Unrealized Losses	(36)	(814)
Securities Available For Sale, 12 Months or More, Fair Value		34,487
Securities Available For Sale, 12 Months or More, Unrealized Losses		(511)
Securities Available For Sale, Fair Value, Total	17,960	133,618
Securities Available For Sale, Unrealized Losses, Total	$ (36)	$ (1,325)
Number of held to maturity securities | Security		4
Securities Held To Maturity, Less than 12 Months, Fair Value		$ 39,843
Securities Held To Maturity, Less than 12 Months, Unrealized Losses		(173)
Securities Held To Maturity, Greater than 12 Months, Fair Value		14,778
Securities Held To Maturity, Greater than 12 Months, Unrealized Losses		(222)
Securities Held To Maturity, Fair Value, Total		54,621
Securities Held To Maturity, Unrealized Losses, Total		$ (395)
U.S. Government-Sponsored Entities [Member] | Less than 12 Months [Member]
Schedule Of Securities [Line Items]
Number of held to maturity securities | Security		3
U.S. Government-Sponsored Entities [Member] | Greater than 12 Months [Member]
Schedule Of Securities [Line Items]
Number of held to maturity securities | Security		1
Agency Mortgage-Backed Securities [Member]
Schedule Of Securities [Line Items]
Number of available for sale securities, Less than 1 year | Security	2	19
Number of available for sale securities | Security	2	19
Securities Available For Sale, Less than 12 Months, Fair Value	$ 56,402	$ 359,250
Securities Available For Sale, Less than 12 Months, Unrealized Losses	(21)	(2,832)
Securities Available For Sale, Fair Value, Total	56,402	359,250
Securities Available For Sale, Unrealized Losses, Total	$ (21)	$ (2,832)
Number of held to maturity securities | Security	1	18
Securities Held To Maturity, Less than 12 Months, Fair Value	$ 922	$ 212,024
Securities Held To Maturity, Less than 12 Months, Unrealized Losses	(4)	(1,159)
Securities Held To Maturity, Greater than 12 Months, Fair Value		917
Securities Held To Maturity, Greater than 12 Months, Unrealized Losses		(17)
Securities Held To Maturity, Fair Value, Total	922	212,941
Securities Held To Maturity, Unrealized Losses, Total	$ (4)	$ (1,176)
Agency Mortgage-Backed Securities [Member] | Less than 12 Months [Member]
Schedule Of Securities [Line Items]
Number of held to maturity securities | Security	1	17
Agency Mortgage-Backed Securities [Member] | Greater than 12 Months [Member]
Schedule Of Securities [Line Items]
Number of held to maturity securities | Security		1
Agency Collateralized Mortgage Obligations [Member]
Schedule Of Securities [Line Items]
Number of available for sale securities, Less than 1 year | Security	2	9
Number of available for sale securities, Greater than 1 year | Security	15	18
Number of available for sale securities | Security	17	27
Securities Available For Sale, Less than 12 Months, Fair Value	$ 29,786	$ 126,309
Securities Available For Sale, Less than 12 Months, Unrealized Losses	(28)	(1,366)
Securities Available For Sale, 12 Months or More, Fair Value	175,354	215,330
Securities Available For Sale, 12 Months or More, Unrealized Losses	(2,876)	(7,164)
Securities Available For Sale, Fair Value, Total	205,140	341,639
Securities Available For Sale, Unrealized Losses, Total	$ (2,904)	$ (8,530)
Number of held to maturity securities | Security	16	25
Securities Held To Maturity, Less than 12 Months, Fair Value		$ 150,593
Securities Held To Maturity, Less than 12 Months, Unrealized Losses		(1,434)
Securities Held To Maturity, Greater than 12 Months, Fair Value	$ 181,913	160,716
Securities Held To Maturity, Greater than 12 Months, Unrealized Losses	(2,931)	(6,223)
Securities Held To Maturity, Fair Value, Total	181,913	311,309
Securities Held To Maturity, Unrealized Losses, Total	$ (2,931)	$ (7,657)
Agency Collateralized Mortgage Obligations [Member] | Less than 12 Months [Member]
Schedule Of Securities [Line Items]
Number of held to maturity securities | Security		11
Agency Collateralized Mortgage Obligations [Member] | Greater than 12 Months [Member]
Schedule Of Securities [Line Items]
Number of held to maturity securities | Security	16	14
Non-Agency Collateralized Mortgage Obligations [Member]
Schedule Of Securities [Line Items]
Number of available for sale securities, Less than 1 year | Security	1
Number of available for sale securities | Security	1
Securities Available For Sale, Less than 12 Months, Fair Value	$ 1,091
Securities Available For Sale, Less than 12 Months, Unrealized Losses	(15)
Securities Available For Sale, Fair Value, Total	1,091
Securities Available For Sale, Unrealized Losses, Total	$ (15)
Number of held to maturity securities | Security	2
Securities Held To Maturity, Less than 12 Months, Fair Value	$ 1,294
Securities Held To Maturity, Less than 12 Months, Unrealized Losses	(9)
Securities Held To Maturity, Fair Value, Total	1,294
Securities Held To Maturity, Unrealized Losses, Total	$ (9)
Non-Agency Collateralized Mortgage Obligations [Member] | Less than 12 Months [Member]
Schedule Of Securities [Line Items]
Number of held to maturity securities | Security	2
Commercial Mortgage-Backed Securities [Member]
Schedule Of Securities [Line Items]
Number of available for sale securities, Less than 1 year | Security	1	1
Number of available for sale securities | Security	1	1
Securities Available For Sale, Less than 12 Months, Fair Value	$ 3,673	$ 4,287
Securities Available For Sale, Less than 12 Months, Unrealized Losses	(1)	(12)
Securities Available For Sale, Fair Value, Total	3,673	4,287
Securities Available For Sale, Unrealized Losses, Total	$ (1)	$ (12)
Number of held to maturity securities | Security	1	3
Securities Held To Maturity, Less than 12 Months, Fair Value	$ 8,579	$ 46,278
Securities Held To Maturity, Less than 12 Months, Unrealized Losses	(92)	(259)
Securities Held To Maturity, Fair Value, Total	8,579	46,278
Securities Held To Maturity, Unrealized Losses, Total	$ (92)	$ (259)
Commercial Mortgage-Backed Securities [Member] | Less than 12 Months [Member]
Schedule Of Securities [Line Items]
Number of held to maturity securities | Security	1	3
States of the U.S. and Political Subdivisions [Member]
Schedule Of Securities [Line Items]
Number of available for sale securities, Less than 1 year | Security	16
Number of available for sale securities | Security	16
Securities Available For Sale, Less than 12 Months, Fair Value	$ 21,325
Securities Available For Sale, Less than 12 Months, Unrealized Losses	(99)
Securities Available For Sale, Fair Value, Total	21,325
Securities Available For Sale, Unrealized Losses, Total	$ (99)
Number of held to maturity securities | Security	6	9
Securities Held To Maturity, Less than 12 Months, Fair Value	$ 10,007	$ 17,616
Securities Held To Maturity, Less than 12 Months, Unrealized Losses	(173)	(101)
Securities Held To Maturity, Greater than 12 Months, Fair Value	2,055
Securities Held To Maturity, Greater than 12 Months, Unrealized Losses	(1)
Securities Held To Maturity, Fair Value, Total	12,062	17,616
Securities Held To Maturity, Unrealized Losses, Total	$ (174)	$ (101)
States of the U.S. and Political Subdivisions [Member] | Less than 12 Months [Member]
Schedule Of Securities [Line Items]
Number of held to maturity securities | Security	5	9
States of the U.S. and Political Subdivisions [Member] | Greater than 12 Months [Member]
Schedule Of Securities [Line Items]
Number of held to maturity securities | Security	1
Other Securities [Member]
Schedule Of Securities [Line Items]
Number of available for sale securities, Greater than 1 year | Security	3	3
Number of available for sale securities | Security	3	3
Securities Available For Sale, 12 Months or More, Fair Value	$ 3,875	$ 4,245
Securities Available For Sale, 12 Months or More, Unrealized Losses	(1,023)	(651)
Securities Available For Sale, Fair Value, Total	3,875	4,245
Securities Available For Sale, Unrealized Losses, Total	$ (1,023)	$ (651)
Equity Securities [Member]
Schedule Of Securities [Line Items]
Number of available for sale securities, Less than 1 year | Security		1
Number of available for sale securities | Security		1
Securities Available For Sale, Less than 12 Months, Fair Value		$ 632
Securities Available For Sale, Less than 12 Months, Unrealized Losses		(3)
Securities Available For Sale, Fair Value, Total		632
Securities Available For Sale, Unrealized Losses, Total		$ (3)

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Securities - Summary of Cumulative Credit-Related OTTI Charges (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Beginning balance	$ 27	$ 27
Loss where impairment was not previously recognized	0	0
Additional loss where impairment was previously recognized	0	0
Reduction due to credit impaired securities sold	0	0
Ending balance	27	27
Equity Securities [Member]
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Beginning balance	27	27
Loss where impairment was not previously recognized	0	0
Additional loss where impairment was previously recognized	0	0
Reduction due to credit impaired securities sold	0	0
Ending balance	$ 27	$ 27

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Loans and Leases - Summary of Loans and Leases, Net of Unearned Income (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	$ 14,165,599	$ 12,190,440
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	5,253,660	4,109,056
Commercial and Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	3,046,267	2,601,722
Commercial Leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	202,605	204,553
Total Commercial Loans and Leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	8,502,532	6,915,331
Direct Installment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	1,790,802	1,706,636
Residential Mortgages [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	1,531,379	1,395,971
Indirect Installment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	1,025,727	996,729
Consumer Lines of Credit [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	1,261,493	1,137,255
Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	53,666	38,518
Originated Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	11,287,704	11,031,979
Originated Loans [Member] | Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	3,605,301	3,531,146
Originated Loans [Member] | Commercial and Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	2,574,321	2,534,351
Originated Loans [Member] | Commercial Leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	202,605	204,553
Originated Loans [Member] | Total Commercial Loans and Leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	6,382,227	6,270,050
Originated Loans [Member] | Direct Installment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	1,686,037	1,660,717
Originated Loans [Member] | Residential Mortgages [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	1,105,680	1,044,689
Originated Loans [Member] | Indirect Installment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	1,025,413	996,175
Originated Loans [Member] | Consumer Lines of Credit [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	1,034,681	1,021,830
Originated Loans [Member] | Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	53,666	38,518
Acquired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	2,877,895	1,158,461
Acquired Loans [Member] | Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	1,648,359	577,910
Acquired Loans [Member] | Commercial and Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	471,946	67,371
Acquired Loans [Member] | Total Commercial Loans and Leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	2,120,305	645,281
Acquired Loans [Member] | Direct Installment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	104,765	45,919
Acquired Loans [Member] | Residential Mortgages [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	425,699	351,282
Acquired Loans [Member] | Indirect Installment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	314	554
Acquired Loans [Member] | Consumer Lines of Credit [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	$ 226,812	$ 115,425

XML

Loans and Leases - Additional Information (Detail) - USD ($)			3 Months Ended		12 Months Ended
	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015	Feb. 13, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Consumer loans	$ 180,889,000	$ 186,162,000	$ 180,889,000		$ 186,162,000
Commercial construction loans	458,388,000	352,322,000	458,388,000		352,322,000
Carrying amount	14,165,599,000	12,190,440,000	$ 14,165,599,000		12,190,440,000
Loans acquired and accounted for under ASC 310-30, Fair value						$ 1,588,481,000
Loans acquired and accounted for under ASC 310-30, Contractual cash flows not expected to be collected						2,174,234,000
Sustained period of delinquency for impairment evaluation			90 days	90 days
Minimum reserves for commercial loan	500,000		$ 500,000
Minimum amount to allocate specific valuation allowance	500,000		500,000
Allowance for loan losses			5,580,000		6,727,000
Restructured loans returned to performing status			2,488,000
Valuation for impairment of loans with pooled reserves	500,000	500,000	500,000		500,000
Pooled reserves for all other classes of loans			3,405,000		3,515,000
Loan Purchased not Subject to ASC 310-30 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans acquired and accounted for under ASC 310-30, Fair value						273,966,000
Loans acquired and accounted for under ASC 310-30, Unpaid principal balance						296,484,000
Loans acquired and accounted for under ASC 310-30, Contractual cash flows not expected to be collected						$ 98,021,000
Consumer Lines of Credit [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying amount	1,261,493,000	1,137,255,000	1,261,493,000		1,137,255,000
Allowance for loan losses			229,000		522,000
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying amount	5,253,660,000	4,109,056,000	5,253,660,000		4,109,056,000
Allowance for loan losses			2,821,000		3,073,000
Commercial and Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying amount	3,046,267,000	2,601,722,000	3,046,267,000		2,601,722,000
Allowance for loan losses			499,000		695,000
Direct Installment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying amount	1,790,802,000	1,706,636,000	1,790,802,000		1,706,636,000
Allowance for loan losses			1,322,000		1,557,000
Residential Mortgages [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying amount	1,531,379,000	1,395,971,000	1,531,379,000		1,395,971,000
Allowance for loan losses			487,000		659,000
Indirect Installment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying amount	1,025,727,000	996,729,000	1,025,727,000		996,729,000
Allowance for loan losses			222,000		221,000
Purchased Credit-Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying amount	17,161,000	5,940,000	17,161,000		5,940,000
Specific reserves for commercial TDRs [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Reserves in allowance for loan losses, TDRs	298,000	300,000	298,000		300,000
Pooled reserves for commercial TDRs [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Reserves in allowance for loan losses, TDRs	$ 865,000	$ 929,000	$ 865,000		$ 929,000
Loan Portfolio Diversification Risk [Member] | Loans and Leases Receivable Net of Deferred Income [Member] | Construction Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of portfolio			3.20%		2.90%
Loan Portfolio Diversification Risk [Member] | Loans and Leases Receivable Net of Deferred Income [Member] | Consumer Lines of Credit [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of portfolio			1.30%		1.50%
Loan Portfolio Diversification Risk [Member] | Commercial Real Estate Loans [Member] | Owner-Occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of portfolio			38.20%		38.10%
Loan Portfolio Diversification Risk [Member] | Commercial Real Estate Loans [Member] | Non-Owner-Occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of portfolio			61.80%		61.90%
Credit Concentration Risk [Member] | Acquired Loans Receivable [Member] | Purchased Credit-Impaired Loans [Member] | Maximum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of portfolio	1.00%	1.00%
Commercial Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Threshold period past due for default non-accrual status of trade accounts receivable			90 days
Installment Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Threshold period past due for default non-accrual status of trade accounts receivable			120 days
Residential Mortgages [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Threshold period past due for default non-accrual status of trade accounts receivable			180 days
Carrying value of OREO through foreclosure	$ 4,590,000	$ 5,219,000	$ 4,590,000		$ 5,219,000
Mortgage loans on real estate, foreclosure			$ 10,174,000		$ 11,725,000

XML

Loans and Leases - Summary of Outstanding Principal Balance and Carrying Amount of Acquired Loans (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying amount	$ 14,165,599	$ 12,190,440
Accounted for under ASC 310-30 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Outstanding balance	2,849,661	1,258,418
Carrying amount	2,485,752	1,011,139
Accounted for under ASC 310-20 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Outstanding balance	403,252	146,161
Carrying amount	386,564	140,595
Acquired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Outstanding balance	3,252,913	1,404,579
Carrying amount	$ 2,872,316	$ 1,151,734

XML

Loans and Leases - Summary of Change in Accretable Yield of Acquired Loans (Detail) - USD ($) $ in Thousands		3 Months Ended
	Feb. 13, 2016	Mar. 31, 2016	Mar. 31, 2015
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Acquired During Period [Abstract]
Balance at beginning of period		$ 256,120	$ 331,899
Acquisitions		284,092
Reduction due to unexpected early payoffs		(9,375)	(11,909)
Reclass from non-accretable difference		10,494	7,676
Disposals/transfers		(260)	(118)
Accretion	$ (284,092)	(13,204)	(16,264)
Balance at end of period		$ 527,867	$ 311,284

XML

Loans and Leases - Summary of Acquisition of Purchased Loans (Detail) - USD ($) $ in Thousands		3 Months Ended
	Feb. 13, 2016	Mar. 31, 2016	Mar. 31, 2015
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Contractually required cash flows at acquisition	$ 2,174,234
Non-accretable difference (expected losses and foregone interest)	(301,661)
Cash flows expected to be collected at acquisition	1,872,573
Accretable yield	(284,092)	$ (13,204)	$ (16,264)
Basis in acquired loans at acquisition	1,588,481
Acquired Impaired Loans [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Contractually required cash flows at acquisition	99,611
Non-accretable difference (expected losses and foregone interest)	(52,995)
Cash flows expected to be collected at acquisition	46,616
Accretable yield	(1,063)
Basis in acquired loans at acquisition	45,553
Acquired Performing Loans [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Contractually required cash flows at acquisition	2,074,623
Non-accretable difference (expected losses and foregone interest)	(248,666)
Cash flows expected to be collected at acquisition	1,825,957
Accretable yield	(283,029)
Basis in acquired loans at acquisition	$ 1,542,928

XML

Loans and Leases - Summary of Non-Performing Assets (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled debt restructurings	$ 49,914	$ 45,500
Non-Performing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans	63,036	49,897
Troubled debt restructurings	21,453	22,028
Total non-performing loans	84,489	71,925
Other real estate owned (OREO)	50,526	38,918
Total non-performing assets	$ 135,015	$ 110,843
Non-performing loans as a percent of total loans and leases	0.60%	0.59%
Non-performing loans + OREO as a percent of total loans and leases + OREO	0.95%	0.91%
Non-performing assets as a percent of total assets	0.66%	0.63%

XML

Loans and Leases - Age Analysis of Past Due Loans, by Class (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	$ 14,165,599	$ 12,190,440
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	5,253,660	4,109,056
Commercial and Industrial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	3,046,267	2,601,722
Commercial Leases [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	202,605	204,553
Total Commercial Loans and Leases [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	8,502,532	6,915,331
Direct Installment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	1,790,802	1,706,636
Residential Mortgages [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	1,531,379	1,395,971
Indirect Installment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	1,025,727	996,729
Consumer Lines of Credit [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	1,261,493	1,137,255
Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	53,666	38,518
Originated Loans and Leases [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 Days Past Due	36,711	46,683
> 90 Days Past Due and Still Accruing	6,120	7,024
Non-Accrual	61,997	48,774
Total Past Due	104,828	102,481
Current	11,182,876	10,929,498
Total Loans	11,287,704	11,031,979
Originated Loans and Leases [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 Days Past Due	9,342	11,006
> 90 Days Past Due and Still Accruing	1	1
Non-Accrual	24,083	23,503
Total Past Due	33,426	34,510
Current	3,571,875	3,496,636
Total Loans	3,605,301	3,531,146
Originated Loans and Leases [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 Days Past Due	4,653	5,409
> 90 Days Past Due and Still Accruing	3	3
Non-Accrual	24,627	14,382
Total Past Due	29,283	19,794
Current	2,545,038	2,514,557
Total Loans	2,574,321	2,534,351
Originated Loans and Leases [Member] | Commercial Leases [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 Days Past Due	1,422	924
> 90 Days Past Due and Still Accruing	15
Non-Accrual	894	659
Total Past Due	2,331	1,583
Current	200,274	202,970
Total Loans	202,605	204,553
Originated Loans and Leases [Member] | Total Commercial Loans and Leases [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 Days Past Due	15,417	17,339
> 90 Days Past Due and Still Accruing	19	4
Non-Accrual	49,604	38,544
Total Past Due	65,040	55,887
Current	6,317,187	6,214,163
Total Loans	6,382,227	6,270,050
Originated Loans and Leases [Member] | Direct Installment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 Days Past Due	6,845	9,254
> 90 Days Past Due and Still Accruing	3,463	3,813
Non-Accrual	5,646	4,806
Total Past Due	15,954	17,873
Current	1,670,083	1,642,844
Total Loans	1,686,037	1,660,717
Originated Loans and Leases [Member] | Residential Mortgages [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 Days Past Due	7,398	8,135
> 90 Days Past Due and Still Accruing	1,545	1,470
Non-Accrual	3,446	2,882
Total Past Due	12,389	12,487
Current	1,093,291	1,032,202
Total Loans	1,105,680	1,044,689
Originated Loans and Leases [Member] | Indirect Installment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 Days Past Due	5,479	9,472
> 90 Days Past Due and Still Accruing	369	379
Non-Accrual	1,347	1,361
Total Past Due	7,195	11,212
Current	1,018,218	984,963
Total Loans	1,025,413	996,175
Originated Loans and Leases [Member] | Consumer Lines of Credit [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 Days Past Due	1,523	2,410
> 90 Days Past Due and Still Accruing	661	1,189
Non-Accrual	1,954	1,181
Total Past Due	4,138	4,780
Current	1,030,543	1,017,050
Total Loans	1,034,681	1,021,830
Originated Loans and Leases [Member] | Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 Days Past Due	49	73
> 90 Days Past Due and Still Accruing	63	169
Total Past Due	112	242
Current	53,554	38,276
Total Loans	53,666	38,518
Acquired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 Days Past Due	44,651	15,034
> 90 Days Past Due and Still Accruing	47,913	29,718
Non-Accrual	1,039	1,123
Total Past Due	93,603	45,875
Current	2,959,300	1,193,517
Discount	(175,008)	(80,931)
Total Loans	2,877,895	1,158,461
Acquired Loans [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 Days Past Due	27,329	6,399
> 90 Days Past Due and Still Accruing	23,563	12,752
Non-Accrual	740	931
Total Past Due	51,632	20,082
Current	1,695,949	593,128
Discount	(99,222)	(35,300)
Total Loans	1,648,359	577,910
Acquired Loans [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 Days Past Due	1,879	1,065
> 90 Days Past Due and Still Accruing	6,596	616
Non-Accrual	152	103
Total Past Due	8,627	1,784
Current	499,764	72,037
Discount	(36,445)	(6,450)
Total Loans	471,946	67,371
Acquired Loans [Member] | Total Commercial Loans and Leases [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 Days Past Due	29,208	7,464
> 90 Days Past Due and Still Accruing	30,159	13,368
Non-Accrual	892	1,034
Total Past Due	60,259	21,866
Current	2,195,713	665,165
Discount	(135,667)	(41,750)
Total Loans	2,120,305	645,281
Acquired Loans [Member] | Direct Installment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 Days Past Due	2,855	837
> 90 Days Past Due and Still Accruing	958	659
Total Past Due	3,813	1,496
Current	97,964	43,596
Discount	2,988	827
Total Loans	104,765	45,919
Acquired Loans [Member] | Residential Mortgages [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 Days Past Due	11,010	5,871
> 90 Days Past Due and Still Accruing	15,498	15,136
Total Past Due	26,508	21,007
Current	436,528	366,742
Discount	(37,337)	(36,467)
Total Loans	425,699	351,282
Acquired Loans [Member] | Indirect Installment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 Days Past Due		32
> 90 Days Past Due and Still Accruing	6	9
Total Past Due	6	41
Current	413	571
Discount	(105)	(58)
Total Loans	314	554
Acquired Loans [Member] | Consumer Lines of Credit [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 Days Past Due	1,578	830
> 90 Days Past Due and Still Accruing	1,292	546
Non-Accrual	147	89
Total Past Due	3,017	1,465
Current	228,682	117,443
Discount	(4,887)	(3,483)
Total Loans	$ 226,812	$ 115,425

XML

Loans and Leases - Summary of Commercial Loans and Leases by Credit Quality (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Originated Loans and Leases [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	$ 6,382,227	$ 6,270,050
Originated Loans and Leases [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	3,605,301	3,531,146
Originated Loans and Leases [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	2,574,321	2,534,351
Originated Loans and Leases [Member] | Commercial Leases [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	202,605	204,553
Acquired Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	2,120,305	645,281
Acquired Loans [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	1,648,359	577,910
Acquired Loans [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	471,946	67,371
Pass [Member] | Originated Loans and Leases [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	5,986,977	5,949,837
Pass [Member] | Originated Loans and Leases [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	3,445,547	3,416,527
Pass [Member] | Originated Loans and Leases [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	2,346,483	2,335,103
Pass [Member] | Originated Loans and Leases [Member] | Commercial Leases [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	194,947	198,207
Pass [Member] | Acquired Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	1,701,041	520,608
Pass [Member] | Acquired Loans [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	1,331,863	464,162
Pass [Member] | Acquired Loans [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	369,178	56,446
Special Mention [Member] | Originated Loans and Leases [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	214,955	164,873
Special Mention [Member] | Originated Loans and Leases [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	97,426	52,887
Special Mention [Member] | Originated Loans and Leases [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	114,408	109,539
Special Mention [Member] | Originated Loans and Leases [Member] | Commercial Leases [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	3,121	2,447
Special Mention [Member] | Acquired Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	179,923	50,801
Special Mention [Member] | Acquired Loans [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	156,709	47,619
Special Mention [Member] | Acquired Loans [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	23,214	3,182
Substandard [Member] | Originated Loans and Leases [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	174,283	152,690
Substandard [Member] | Originated Loans and Leases [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	61,928	61,411
Substandard [Member] | Originated Loans and Leases [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	107,818	87,380
Substandard [Member] | Originated Loans and Leases [Member] | Commercial Leases [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	4,537	3,899
Substandard [Member] | Acquired Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	230,826	73,872
Substandard [Member] | Acquired Loans [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	152,929	66,129
Substandard [Member] | Acquired Loans [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	77,897	7,743
Doubtful [Member] | Originated Loans and Leases [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	6,012	2,650
Doubtful [Member] | Originated Loans and Leases [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	400	321
Doubtful [Member] | Originated Loans and Leases [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	5,612	$ 2,329
Doubtful [Member] | Acquired Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	8,515
Doubtful [Member] | Acquired Loans [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	6,858
Doubtful [Member] | Acquired Loans [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	$ 1,657

XML

Loans and Leases - Summary of Consumer Loans by Payment Status (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Credit Quality [Line Items]
Total Loans	$ 14,165,599	$ 12,190,440
Performing [Member]
Credit Quality [Line Items]
Performing Loans	4,873,598	4,731,813
Non Performing Consumer Originated [Member]
Credit Quality [Line Items]
Non-Performing Loans	31,879	30,116
Direct Installment [Member]
Credit Quality [Line Items]
Total Loans	1,790,802	1,706,636
Direct Installment [Member] | Performing [Member]
Credit Quality [Line Items]
Performing Loans	1,671,896	1,646,925
Direct Installment [Member] | Non Performing Consumer Originated [Member]
Credit Quality [Line Items]
Non-Performing Loans	14,141	13,792
Residential Mortgages [Member]
Credit Quality [Line Items]
Total Loans	1,531,379	1,395,971
Residential Mortgages [Member] | Performing [Member]
Credit Quality [Line Items]
Performing Loans	1,092,329	1,031,926
Residential Mortgages [Member] | Non Performing Consumer Originated [Member]
Credit Quality [Line Items]
Non-Performing Loans	13,351	12,763
Indirect Installment [Member]
Credit Quality [Line Items]
Total Loans	1,025,727	996,729
Indirect Installment [Member] | Performing [Member]
Credit Quality [Line Items]
Performing Loans	1,023,909	994,661
Indirect Installment [Member] | Non Performing Consumer Originated [Member]
Credit Quality [Line Items]
Non-Performing Loans	1,504	1,514
Consumer Lines of Credit [Member] | Performing [Member]
Credit Quality [Line Items]
Performing Loans	1,031,798	1,019,783
Consumer Lines of Credit [Member] | Non Performing Consumer Originated [Member]
Credit Quality [Line Items]
Non-Performing Loans	2,883	2,047
Other [Member]
Credit Quality [Line Items]
Total Loans	53,666	38,518
Other [Member] | Performing [Member]
Credit Quality [Line Items]
Performing Loans	53,666	38,518
Originated Consumer Loans [Member]
Credit Quality [Line Items]
Total Loans	4,905,477	4,761,929
Originated Consumer Loans [Member] | Direct Installment [Member]
Credit Quality [Line Items]
Total Loans	1,686,037	1,660,717
Originated Consumer Loans [Member] | Residential Mortgages [Member]
Credit Quality [Line Items]
Total Loans	1,105,680	1,044,689
Originated Consumer Loans [Member] | Indirect Installment [Member]
Credit Quality [Line Items]
Total Loans	1,025,413	996,175
Originated Consumer Loans [Member] | Consumer Lines of Credit [Member]
Credit Quality [Line Items]
Total Loans	1,034,681	1,021,830
Originated Consumer Loans [Member] | Other [Member]
Credit Quality [Line Items]
Total Loans	$ 53,666	$ 38,518

XML

Loans and Leases - Summary of Impaired Loans and Lease, by Class (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Financial Receivables Impaired Or Restructured [Line Items]
Unpaid Contractual Principal Balance	$ 96,412	$ 84,525
Recorded Investment With No Specific Reserve	68,850	64,374
Recorded Investment With Specific Reserve	13,999	6,315
Total Recorded Investment	82,849	70,689
Specific Reserve	6,012	2,650
Average Recorded Investment	75,992	68,950
Commercial Real Estate [Member]
Financial Receivables Impaired Or Restructured [Line Items]
Unpaid Contractual Principal Balance	33,434	33,780
Recorded Investment With No Specific Reserve	24,035	24,423
Recorded Investment With Specific Reserve	1,520	772
Total Recorded Investment	25,555	25,195
Specific Reserve	400	321
Average Recorded Investment	25,374	26,143
Commercial and Industrial [Member]
Financial Receivables Impaired Or Restructured [Line Items]
Unpaid Contractual Principal Balance	25,965	15,860
Recorded Investment With No Specific Reserve	12,042	9,176
Recorded Investment With Specific Reserve	12,479	5,543
Total Recorded Investment	24,521	14,719
Specific Reserve	5,612	2,329
Average Recorded Investment	19,620	12,298
Commercial Leases [Member]
Financial Receivables Impaired Or Restructured [Line Items]
Unpaid Contractual Principal Balance	894	659
Recorded Investment With No Specific Reserve	894	659
Total Recorded Investment	894	659
Average Recorded Investment		747
Total Commercial Loans and Leases [Member]
Financial Receivables Impaired Or Restructured [Line Items]
Unpaid Contractual Principal Balance	60,293	50,299
Recorded Investment With No Specific Reserve	36,971	34,258
Recorded Investment With Specific Reserve	13,999	6,315
Total Recorded Investment	50,970	40,573
Specific Reserve	6,012	2,650
Average Recorded Investment	44,994	39,188
Direct Installment [Member]
Financial Receivables Impaired Or Restructured [Line Items]
Unpaid Contractual Principal Balance	15,135	14,679
Recorded Investment With No Specific Reserve	14,141	13,792
Total Recorded Investment	14,141	13,792
Average Recorded Investment	13,966	13,267
Residential Mortgages [Member]
Financial Receivables Impaired Or Restructured [Line Items]
Unpaid Contractual Principal Balance	13,881	13,394
Recorded Investment With No Specific Reserve	13,351	12,763
Total Recorded Investment	13,351	12,763
Average Recorded Investment	13,058	12,896
Indirect Installment [Member]
Financial Receivables Impaired Or Restructured [Line Items]
Unpaid Contractual Principal Balance	3,667	3,745
Recorded Investment With No Specific Reserve	1,504	1,514
Total Recorded Investment	1,504	1,514
Average Recorded Investment	1,509	1,401
Consumer Lines of Credit [Member]
Financial Receivables Impaired Or Restructured [Line Items]
Unpaid Contractual Principal Balance	3,436	2,408
Recorded Investment With No Specific Reserve	2,883	2,047
Total Recorded Investment	2,883	2,047
Average Recorded Investment	$ 2,465	$ 2,198

XML

Loans and Leases - Summary of Payment Status of Originated TDRs (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings ("TDRs")	$ 49,914	$ 45,500
Performing [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings ("TDRs")	16,508	15,165
Non-Performing [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings ("TDRs")	21,453	22,028
Non-Accrual [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings ("TDRs")	$ 11,953	$ 8,307

XML

Loans and Leases - Summary of Troubled Debt Restructurings by Class of Loans (Detail) $ in Thousands	3 Months Ended
	Mar. 31, 2016 USD ($) Contract	Mar. 31, 2015 USD ($) Contract
Financing Receivable, Modifications [Line Items]
Number of Contracts | Contract	192	168
Pre-Modification Outstanding Recorded Investment	$ 9,556	$ 2,705
Post-Modification Outstanding Recorded Investment	$ 7,201	$ 2,597
Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts | Contract	4	2
Pre-Modification Outstanding Recorded Investment	$ 778	$ 312
Post-Modification Outstanding Recorded Investment	$ 760	$ 196
Commercial and Industrial [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts | Contract	2
Pre-Modification Outstanding Recorded Investment	$ 5,565
Post-Modification Outstanding Recorded Investment	$ 3,279
Total Commercial Loans and Leases [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts | Contract	6	2
Pre-Modification Outstanding Recorded Investment	$ 6,343	$ 312
Post-Modification Outstanding Recorded Investment	$ 4,039	$ 196
Direct Installment [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts | Contract	145	131
Pre-Modification Outstanding Recorded Investment	$ 1,991	$ 1,526
Post-Modification Outstanding Recorded Investment	$ 1,961	$ 1,484
Residential Mortgages [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts | Contract	18	14
Pre-Modification Outstanding Recorded Investment	$ 968	$ 581
Post-Modification Outstanding Recorded Investment	$ 951	$ 631
Indirect Installment [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts | Contract	3	5
Pre-Modification Outstanding Recorded Investment	$ 11	$ 16
Post-Modification Outstanding Recorded Investment	$ 12	$ 16
Consumer Lines of Credit [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts | Contract	20	16
Pre-Modification Outstanding Recorded Investment	$ 243	$ 270
Post-Modification Outstanding Recorded Investment	$ 238	$ 270

XML

Loans and Leases - Summary of Originated Troubled Debt Restructurings by Class of Loans and Leases, Payment Default (Detail) $ in Thousands		3 Months Ended
		Mar. 31, 2016 USD ($) Contract	Mar. 31, 2015 USD ($) Contract
Financing Receivable, Modifications [Line Items]
Number of Contracts | Contract		34	43
Recorded Investment | $	[1]	$ 240	$ 303
Direct Installment [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts | Contract		28	37
Recorded Investment | $	[1]	$ 175	$ 105
Residential Mortgages [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts | Contract		1	2
Recorded Investment | $	[1]	$ 50	$ 102
Indirect Installment [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts | Contract		4	3
Recorded Investment | $	[1]	$ 5	$ 4
Consumer Lines of Credit [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts | Contract		1	1
Recorded Investment | $	[1]	$ 10	$ 92

[1] The recorded investment is as of period end.

XML

Allowance for Credit Losses - Summary of Changes in Allowance for Credit Losses by Loan and Lease Class (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Schedule Of Allowance For Loan Losses [Line Items]
Balance at Beginning of Period	$ 142,012	$ 125,926
Charge- Offs	(7,884)	(6,888)
Recoveries	1,904	1,325
Net Charge- Offs	(5,980)	(5,563)
Provision for credit losses	11,768	8,136
Balance at End of Period	147,800	128,499
Originated Loans and Leases [Member]
Schedule Of Allowance For Loan Losses [Line Items]
Balance at Beginning of Period	135,285	117,952
Charge- Offs	(7,503)	(6,747)
Recoveries	1,598	976
Net Charge- Offs	(5,905)	(5,771)
Provision for credit losses	12,840	9,066
Balance at End of Period	142,220	121,247
Acquired Loans [Member]
Schedule Of Allowance For Loan Losses [Line Items]
Balance at Beginning of Period	6,727	7,974
Charge- Offs	(381)	(141)
Recoveries	306	349
Net Charge- Offs	(75)	208
Provision for credit losses	(1,072)	(930)
Balance at End of Period	5,580	7,252
Commercial Real Estate [Member]
Schedule Of Allowance For Loan Losses [Line Items]
Balance at Beginning of Period	41,741	37,588
Charge- Offs	(1,369)	(1,001)
Recoveries	597	209
Net Charge- Offs	(772)	(792)
Provision for credit losses	2,929	1,996
Balance at End of Period	43,898	38,792
Commercial and Industrial [Member]
Schedule Of Allowance For Loan Losses [Line Items]
Balance at Beginning of Period	41,023	32,645
Charge- Offs	(298)	(684)
Recoveries	190	120
Net Charge- Offs	(108)	(564)
Provision for credit losses	6,948	722
Balance at End of Period	47,863	32,803
Commercial Leases [Member]
Schedule Of Allowance For Loan Losses [Line Items]
Balance at Beginning of Period	2,541	2,398
Charge- Offs	(114)	(93)
Recoveries	14	10
Net Charge- Offs	(100)	(83)
Provision for credit losses	377	261
Balance at End of Period	2,818	2,576
Total Commercial Loans and Leases [Member]
Schedule Of Allowance For Loan Losses [Line Items]
Balance at Beginning of Period	85,305	72,631
Charge- Offs	(1,781)	(1,778)
Recoveries	801	339
Net Charge- Offs	(980)	(1,439)
Provision for credit losses	10,254	2,979
Balance at End of Period	94,579	74,171
Direct Installment [Member]
Schedule Of Allowance For Loan Losses [Line Items]
Balance at Beginning of Period	21,587	20,538
Charge- Offs	(2,667)	(2,433)
Recoveries	454	269
Net Charge- Offs	(2,213)	(2,164)
Provision for credit losses	1,351	2,830
Balance at End of Period	20,725	21,204
Residential Mortgages [Member]
Schedule Of Allowance For Loan Losses [Line Items]
Balance at Beginning of Period	7,909	8,024
Charge- Offs	(85)	(511)
Recoveries	19	15
Net Charge- Offs	(66)	(496)
Provision for credit losses	(33)	943
Balance at End of Period	7,810	8,471
Indirect Installment [Member]
Schedule Of Allowance For Loan Losses [Line Items]
Balance at Beginning of Period	9,889	7,504
Charge- Offs	(1,942)	(1,280)
Recoveries	262	302
Net Charge- Offs	(1,680)	(978)
Provision for credit losses	856	1,131
Balance at End of Period	9,065	7,657
Consumer Lines of Credit [Member]
Schedule Of Allowance For Loan Losses [Line Items]
Balance at Beginning of Period	9,582	8,496
Charge- Offs	(474)	(410)
Recoveries	56	40
Net Charge- Offs	(418)	(370)
Provision for credit losses	(197)	764
Balance at End of Period	8,967	8,890
Other [Member]
Schedule Of Allowance For Loan Losses [Line Items]
Balance at Beginning of Period	1,013	759
Charge- Offs	(554)	(335)
Recoveries	6	11
Net Charge- Offs	(548)	(324)
Provision for credit losses	609	419
Balance at End of Period	1,074	854
Purchased Credit-Impaired Loans [Member]
Schedule Of Allowance For Loan Losses [Line Items]
Balance at Beginning of Period	834	660
Charge- Offs	(160)	(64)
Recoveries		19
Net Charge- Offs	(160)	(45)
Provision for credit losses	30	6
Balance at End of Period	704	621
Other Acquired Loans [Member]
Schedule Of Allowance For Loan Losses [Line Items]
Balance at Beginning of Period	5,893	7,314
Charge- Offs	(221)	(77)
Recoveries	306	330
Net Charge- Offs	85	253
Provision for credit losses	(1,102)	(936)
Balance at End of Period	$ 4,876	$ 6,631

XML

Allowance for Credit Losses - Summary of Individual and Collective Allowance for Credit Losses and Loan and Lease Balances by Class (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Valuation Allowance [Line Items]
Originated Allowance, Individually Evaluated for Impairment	$ 6,012	$ 2,650
Originated Allowance, Collectively Evaluated for Impairment	136,208	132,635
Loans and Leases	14,165,599	12,190,440
Originated Loans and Leases Outstanding, Individually Evaluated for Impairment	33,939	23,706
Originated Loans and Leases Outstanding, Collectively Evaluated for Impairment	11,253,765	11,008,273
Commercial Real Estate [Member]
Valuation Allowance [Line Items]
Originated Allowance, Individually Evaluated for Impairment	400	321
Originated Allowance, Collectively Evaluated for Impairment	43,498	41,420
Loans and Leases	5,253,660	4,109,056
Originated Loans and Leases Outstanding, Individually Evaluated for Impairment	14,260	12,904
Originated Loans and Leases Outstanding, Collectively Evaluated for Impairment	3,591,041	3,518,242
Commercial and Industrial [Member]
Valuation Allowance [Line Items]
Originated Allowance, Individually Evaluated for Impairment	5,612	2,329
Originated Allowance, Collectively Evaluated for Impairment	42,251	38,694
Loans and Leases	3,046,267	2,601,722
Originated Loans and Leases Outstanding, Individually Evaluated for Impairment	19,679	10,802
Originated Loans and Leases Outstanding, Collectively Evaluated for Impairment	2,554,642	2,523,549
Commercial Leases [Member]
Valuation Allowance [Line Items]
Originated Allowance, Collectively Evaluated for Impairment	2,818	2,541
Loans and Leases	202,605	204,553
Originated Loans and Leases Outstanding, Collectively Evaluated for Impairment	202,605	204,553
Total Commercial Loans and Leases [Member]
Valuation Allowance [Line Items]
Originated Allowance, Individually Evaluated for Impairment	6,012	2,650
Originated Allowance, Collectively Evaluated for Impairment	88,567	82,655
Loans and Leases	8,502,532	6,915,331
Originated Loans and Leases Outstanding, Individually Evaluated for Impairment	33,939	23,706
Originated Loans and Leases Outstanding, Collectively Evaluated for Impairment	6,348,288	6,246,344
Direct Installment [Member]
Valuation Allowance [Line Items]
Originated Allowance, Collectively Evaluated for Impairment	20,725	21,587
Loans and Leases	1,790,802	1,706,636
Originated Loans and Leases Outstanding, Collectively Evaluated for Impairment	1,686,037	1,660,717
Residential Mortgages [Member]
Valuation Allowance [Line Items]
Originated Allowance, Collectively Evaluated for Impairment	7,810	7,909
Loans and Leases	1,531,379	1,395,971
Originated Loans and Leases Outstanding, Collectively Evaluated for Impairment	1,105,680	1,044,689
Indirect Installment [Member]
Valuation Allowance [Line Items]
Originated Allowance, Collectively Evaluated for Impairment	9,065	9,889
Loans and Leases	1,025,727	996,729
Originated Loans and Leases Outstanding, Collectively Evaluated for Impairment	1,025,413	996,175
Consumer Lines of Credit [Member]
Valuation Allowance [Line Items]
Originated Allowance, Collectively Evaluated for Impairment	8,967	9,582
Loans and Leases	1,261,493	1,137,255
Originated Loans and Leases Outstanding, Collectively Evaluated for Impairment	1,034,681	1,021,830
Other [Member]
Valuation Allowance [Line Items]
Originated Allowance, Collectively Evaluated for Impairment	1,074	1,013
Loans and Leases	53,666	38,518
Originated Loans and Leases Outstanding, Collectively Evaluated for Impairment	53,666	38,518
Loans and Leases [Member]
Valuation Allowance [Line Items]
Loans and Leases	11,287,704	11,031,979
Loans and Leases [Member] | Commercial Real Estate [Member]
Valuation Allowance [Line Items]
Loans and Leases	3,605,301	3,531,146
Loans and Leases [Member] | Commercial and Industrial [Member]
Valuation Allowance [Line Items]
Loans and Leases	2,574,321	2,534,351
Loans and Leases [Member] | Commercial Leases [Member]
Valuation Allowance [Line Items]
Loans and Leases	202,605	204,553
Loans and Leases [Member] | Total Commercial Loans and Leases [Member]
Valuation Allowance [Line Items]
Loans and Leases	6,382,227	6,270,050
Loans and Leases [Member] | Direct Installment [Member]
Valuation Allowance [Line Items]
Loans and Leases	1,686,037	1,660,717
Loans and Leases [Member] | Residential Mortgages [Member]
Valuation Allowance [Line Items]
Loans and Leases	1,105,680	1,044,689
Loans and Leases [Member] | Indirect Installment [Member]
Valuation Allowance [Line Items]
Loans and Leases	1,025,413	996,175
Loans and Leases [Member] | Consumer Lines of Credit [Member]
Valuation Allowance [Line Items]
Loans and Leases	1,034,681	1,021,830
Loans and Leases [Member] | Other [Member]
Valuation Allowance [Line Items]
Loans and Leases	$ 53,666	$ 38,518

XML

Borrowings - Summary of Short-Term Borrowings (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Debt Disclosure [Abstract]
Securities sold under repurchase agreements	$ 297,562	$ 266,732
Federal Home Loan Bank advances	490,000	1,090,000
Federal funds purchased	652,000	568,000
Subordinated notes	124,326	124,164
Short-term borrowings	$ 1,563,888	$ 2,048,896

XML

Borrowings - Summary of Long-Term Borrowings (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Debt Disclosure [Abstract]
Federal Home Loan Bank advances	$ 425,147	$ 400,017
Subordinated notes	85,206	84,668
Junior subordinated debt	48,572	58,298
Other subordinated debt	98,520	98,497
Long-term debt	$ 657,445	$ 641,480

XML

Borrowings - Additional Information (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($)	Mar. 31, 2016 USD ($) Trust	Dec. 31, 2015
Debt Instrument [Line Items]
Credit available with FHLB		$ 5,543,082
Credit with FHLB used		$ 915,147
Federal Home Loan Bank advances are scheduled to mature periodically through the year		2021
Effective interest rates, minimum		0.76%	0.76%
Effective interest rates, maximum		4.19%	4.19%
Number of unconsolidated subsidiary trusts | Trust		2
Percent of the common equity of each Trust owned by the Corporation		100.00%
Scenario, Forecast [Member] | Omega Financial Capital Trust I [Member]
Debt Instrument [Line Items]
Redemption of Corporation Issued TPS	$ 10,000

XML

Borrowings - Junior Subordinated Debt Trusts (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Subordinated Borrowing [Line Items]
Junior subordinated debt	$ 48,572	$ 58,298
Trust Preferred Securities Subject to Mandatory Redemption [Member]
Subordinated Borrowing [Line Items]
Junior subordinated debt	47,500
Common Stock Subject to Mandatory Redemption [Member]
Subordinated Borrowing [Line Items]
Junior subordinated debt	1,779
F.N.B. Statutory Trust II [Member]
Subordinated Borrowing [Line Items]
Junior subordinated debt	$ 22,165
Stated Maturity Date	Jun. 15, 2036
Interest Rate	2.28%
Description of variable rate	Variable; 3-month LIBOR + 165 basis points (bps)
Basis points	1.65%
F.N.B. Statutory Trust II [Member] | Trust Preferred Securities Subject to Mandatory Redemption [Member]
Subordinated Borrowing [Line Items]
Junior subordinated debt	$ 21,500
F.N.B. Statutory Trust II [Member] | Common Stock Subject to Mandatory Redemption [Member]
Subordinated Borrowing [Line Items]
Junior subordinated debt	665
Omega Financial Capital Trust I [Member]
Subordinated Borrowing [Line Items]
Junior subordinated debt	$ 26,407
Stated Maturity Date	Oct. 18, 2034
Interest Rate	2.81%
Description of variable rate	Variable; 3-month LIBOR + 219 bps
Basis points	2.19%
Omega Financial Capital Trust I [Member] | Trust Preferred Securities Subject to Mandatory Redemption [Member]
Subordinated Borrowing [Line Items]
Junior subordinated debt	$ 26,000
Omega Financial Capital Trust I [Member] | Common Stock Subject to Mandatory Redemption [Member]
Subordinated Borrowing [Line Items]
Junior subordinated debt	$ 1,114

XML

Derivative and Hedging Activities - Schedule of Notional Amounts and Gross Fair Values of Derivative Assets and Derivative Liabilities (Detail) - USD ($)	Mar. 31, 2016	Dec. 31, 2015
Derivatives, Fair Value [Line Items]
Notional amount	$ 3,134,482,000	$ 2,893,041,000
Fair value, asset	88,006,000	53,202,000
Liability	82,219,000	51,605,000
Interest Rate Contracts [Member]
Derivatives, Fair Value [Line Items]
Notional amount	250,000,000	250,000,000
Interest Rate Swap [Member]
Derivatives, Fair Value [Line Items]
Notional amount	1,373,959,000	1,262,964,000
Credit Risk Contracts [Member]
Derivatives, Fair Value [Line Items]
Fair value, asset	22,000	7,000
Subject to Master Netting Arrangement [Member]
Derivatives, Fair Value [Line Items]
Notional amount	1,625,139,000	1,514,144,000
Fair value, asset	7,893,000	3,197,000
Liability	81,966,000	51,453,000
Subject to Master Netting Arrangement [Member] | Interest Rate Contracts [Member]
Derivatives, Fair Value [Line Items]
Notional amount	250,000,000	250,000,000
Fair value, asset	7,859,000	3,178,000
Liability	1,341,000	962,000
Subject to Master Netting Arrangement [Member] | Interest Rate Swap [Member]
Derivatives, Fair Value [Line Items]
Notional amount	1,373,959,000	1,262,964,000
Fair value, asset		1,000
Liability	80,625,000	50,491,000
Subject to Master Netting Arrangement [Member] | Equity Contracts [Member]
Derivatives, Fair Value [Line Items]
Notional amount	1,180,000	1,180,000
Fair value, asset	34,000	18,000
Not Subject to Master Netting Arrangement [Member]
Derivatives, Fair Value [Line Items]
Notional amount	1,509,343,000	1,378,897,000
Fair value, asset	80,113,000	50,005,000
Liability	253,000	152,000
Not Subject to Master Netting Arrangement [Member] | Interest Rate Swap [Member]
Derivatives, Fair Value [Line Items]
Notional amount	1,373,959,000	1,262,964,000
Fair value, asset	80,091,000	49,998,000
Liability		1,000
Not Subject to Master Netting Arrangement [Member] | Equity Contracts [Member]
Derivatives, Fair Value [Line Items]
Notional amount	1,180,000	1,180,000
Liability	34,000	18,000
Not Subject to Master Netting Arrangement [Member] | Credit Risk Contracts [Member]
Derivatives, Fair Value [Line Items]
Notional amount	134,204,000	114,753,000
Fair value, asset	22,000	7,000
Liability	$ 219,000	$ 133,000

XML

Derivative and Hedging Activities - Additional Information (Detail) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Derivative [Line Items]
Notional amount	$ 3,134,482,000		$ 2,893,041,000
Derivative assets	88,006,000		53,202,000
Derivative liabilities	82,219,000		51,605,000
Amounts reclassified from AOCI	(395,000)
Additional amount in excess of posted collateral required in case of breached agreements	1,894,000		1,333,000
Interest Rate Contracts [Member]
Derivative [Line Items]
Notional amount	$ 250,000,000		250,000,000
Period to reclassification of cash flow hedge gain loss	12 months
Maximum length of time hedged in interest rate cash flow hedge	7 years
Derivative gains to be reclassified within twelve months	$ 1,979,000
Derivative gains to be reclassified within twelve months, net of tax	1,286,000
Derivative gain or loses excluded from assessment of hedge effectiveness	0
Hedge ineffectiveness	0	$ 0
Gains or losses from cash flow hedge derivatives reclassified to earnings	0	$ 0
Interest Rate Contracts [Member] | Interest Income - Loans and Leases [Member]
Derivative [Line Items]
Derivative financial instrument, net	687,000		809,000
Interest Rate Contracts [Member] | Interest Income - Loans and Leases [Member] | Amount Reclassified from Other Comprehensive Income [Member]
Derivative [Line Items]
Derivative financial instrument, net	687,000
Amounts reclassified from AOCI	446,000
Interest Rate Contracts [Member] | Interest Expense - Short-term Borrowings [Member]
Derivative [Line Items]
Derivative financial instrument, net	150,000
Interest Rate Contracts [Member] | Interest Expense - Short-term Borrowings [Member] | Amount Reclassified from Other Comprehensive Income [Member]
Derivative [Line Items]
Derivative financial instrument, net	150,000
Amounts reclassified from AOCI	97,000
Interest Rate Swap [Member]
Derivative [Line Items]
Notional amount	1,373,959,000		1,262,964,000
Credit Risk Contract Sold [Member]
Derivative [Line Items]
Notional amount	$ 83,010,000
Risk participation agreements, minimum term	1 year
Risk participation agreements, maximum term	14 years
Maximum exposure under credit risk agreement assuming customer default	$ 219,000		133,000
Not for Trading Assets [Member] | Interest Rate Contracts [Member]
Derivative [Line Items]
Derivative assets	7,859,000		3,178,000
Trading Assets [Member] | Interest Rate Swap [Member]
Derivative [Line Items]
Derivative assets	80,091,000		49,999,000
Not for Trading Liabilities [Member] | Interest Rate Contracts [Member]
Derivative [Line Items]
Derivative liabilities	1,341,000		962,000
Trading Liabilities [Member] | Interest Rate Swap [Member]
Derivative [Line Items]
Derivative liabilities	$ 80,625,000		$ 50,492,000

XML

Derivative and Hedging Activities - Offsetting of Derivative Assets (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Derivatives, Fair Value [Line Items]
Gross Amount	$ 88,006	$ 53,202
Gross Amounts Offset in the Balance Sheet, Derivative Assets	0	0
Net Amount Presented in the Balance Sheet	88,006	53,202
Credit Risk Contracts [Member]
Derivatives, Fair Value [Line Items]
Gross Amount	22	7
Gross Amounts Offset in the Balance Sheet, Derivative Assets	0	0
Net Amount Presented in the Balance Sheet	22	7
Subject to Master Netting Arrangement [Member]
Derivatives, Fair Value [Line Items]
Net Amount Presented in the Balance Sheet	7,893	3,197
Subject to Master Netting Arrangement [Member] | Interest Rate Contracts [Member]
Derivatives, Fair Value [Line Items]
Gross Amount	7,859	3,178
Gross Amounts Offset in the Balance Sheet, Derivative Assets	0	0
Net Amount Presented in the Balance Sheet	7,859	3,178
Subject to Master Netting Arrangement [Member] | Interest Rate Swap [Member]
Derivatives, Fair Value [Line Items]
Gross Amount		1
Gross Amounts Offset in the Balance Sheet, Derivative Assets	0	0
Net Amount Presented in the Balance Sheet		1
Subject to Master Netting Arrangement [Member] | Equity Contracts [Member]
Derivatives, Fair Value [Line Items]
Gross Amount	34	18
Gross Amounts Offset in the Balance Sheet, Derivative Assets	0	0
Net Amount Presented in the Balance Sheet	34	18
Not Subject to Master Netting Arrangement [Member]
Derivatives, Fair Value [Line Items]
Net Amount Presented in the Balance Sheet	80,113	50,005
Not Subject to Master Netting Arrangement [Member] | Interest Rate Swap [Member]
Derivatives, Fair Value [Line Items]
Gross Amount	80,091	49,998
Gross Amounts Offset in the Balance Sheet, Derivative Assets	0	0
Net Amount Presented in the Balance Sheet	80,091	49,998
Not Subject to Master Netting Arrangement [Member] | Credit Risk Contracts [Member]
Derivatives, Fair Value [Line Items]
Net Amount Presented in the Balance Sheet	$ 22	$ 7

XML

Derivative and Hedging Activities - Offsetting of Derivative Liabilities (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Derivatives, Fair Value [Line Items]
Gross Amount	$ 82,219	$ 51,605
Gross Amounts Offset in the Balance Sheet, Derivative Liabilities	0	0
Net Amount Presented in the Balance Sheet	82,219	51,605
Subject to Master Netting Arrangement [Member]
Derivatives, Fair Value [Line Items]
Net Amount Presented in the Balance Sheet	81,966	51,453
Subject to Master Netting Arrangement [Member] | Interest Rate Contracts [Member]
Derivatives, Fair Value [Line Items]
Gross Amount	1,341	962
Gross Amounts Offset in the Balance Sheet, Derivative Liabilities	0	0
Net Amount Presented in the Balance Sheet	1,341	962
Subject to Master Netting Arrangement [Member] | Interest Rate Swap [Member]
Derivatives, Fair Value [Line Items]
Gross Amount	80,625	50,491
Gross Amounts Offset in the Balance Sheet, Derivative Liabilities	0	0
Net Amount Presented in the Balance Sheet	80,625	50,491
Not Subject to Master Netting Arrangement [Member]
Derivatives, Fair Value [Line Items]
Net Amount Presented in the Balance Sheet	253	152
Not Subject to Master Netting Arrangement [Member] | Interest Rate Swap [Member]
Derivatives, Fair Value [Line Items]
Gross Amount		1
Gross Amounts Offset in the Balance Sheet, Derivative Liabilities	0	0
Net Amount Presented in the Balance Sheet		1
Not Subject to Master Netting Arrangement [Member] | Credit Risk Contracts [Member]
Derivatives, Fair Value [Line Items]
Gross Amount	219	133
Gross Amounts Offset in the Balance Sheet, Derivative Liabilities	0	0
Net Amount Presented in the Balance Sheet	219	133
Not Subject to Master Netting Arrangement [Member] | Equity Contracts [Member]
Derivatives, Fair Value [Line Items]
Gross Amount	34	18
Gross Amounts Offset in the Balance Sheet, Derivative Liabilities	0	0
Net Amount Presented in the Balance Sheet	$ 34	$ 18

XML

Derivative and Hedging Activities - Derivative Assets (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Derivative [Line Items]
Net Amount Presented in the Balance Sheet	$ 88,006	$ 53,202
Subject to Master Netting Arrangement [Member]
Derivative [Line Items]
Net Amount Presented in the Balance Sheet	7,893	3,197
Gross Amounts Not Offset in the Balance Sheet Financial Instruments, Derivative Assets	5,086	1,535
Gross Amounts Not Offset in the Balance Sheet Cash Collateral Received, Derivative Assets	2,807	1,662
Net Amount, Derivative Assets	0	0
Subject to Master Netting Arrangement [Member] | Interest Rate Contracts [Member]
Derivative [Line Items]
Net Amount Presented in the Balance Sheet	7,859	3,178
Gross Amounts Not Offset in the Balance Sheet Financial Instruments, Derivative Assets	5,052	1,516
Gross Amounts Not Offset in the Balance Sheet Cash Collateral Received, Derivative Assets	2,807	1,662
Net Amount, Derivative Assets	0	0
Subject to Master Netting Arrangement [Member] | Interest Rate Swap [Member]
Derivative [Line Items]
Net Amount Presented in the Balance Sheet		1
Gross Amounts Not Offset in the Balance Sheet Financial Instruments, Derivative Assets		1
Net Amount, Derivative Assets	0	0
Subject to Master Netting Arrangement [Member] | Equity Contracts [Member]
Derivative [Line Items]
Net Amount Presented in the Balance Sheet	34	18
Gross Amounts Not Offset in the Balance Sheet Financial Instruments, Derivative Assets	34	18
Net Amount, Derivative Assets	$ 0	$ 0

XML

Derivative and Hedging Activities - Derivative Liabilities (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Derivative [Line Items]
Net Amount Presented in the Balance Sheet	$ 82,219	$ 51,605
Subject to Master Netting Arrangement [Member]
Derivative [Line Items]
Net Amount Presented in the Balance Sheet	81,966	51,453
Gross Amount Not Offset in the Balance Sheet Financial Instruments, Derivative Liabilities	31,472	25,371
Gross Amount Not Offset in the Balance Sheet Cash Collateral Pledged, Derivative Liabilities	48,828	24,802
Net Amount, Derivative Liabilities	1,666	1,280
Subject to Master Netting Arrangement [Member] | Interest Rate Contracts [Member]
Derivative [Line Items]
Net Amount Presented in the Balance Sheet	1,341	962
Gross Amount Not Offset in the Balance Sheet Financial Instruments, Derivative Liabilities		792
Gross Amount Not Offset in the Balance Sheet Cash Collateral Pledged, Derivative Liabilities	1,341	170
Subject to Master Netting Arrangement [Member] | Interest Rate Swap [Member]
Derivative [Line Items]
Net Amount Presented in the Balance Sheet	80,625	50,491
Gross Amount Not Offset in the Balance Sheet Financial Instruments, Derivative Liabilities	31,472	24,579
Gross Amount Not Offset in the Balance Sheet Cash Collateral Pledged, Derivative Liabilities	47,487	24,632
Net Amount, Derivative Liabilities	$ 1,666	$ 1,280

XML

Derivative and Hedging Activities - Effect of Corporation's Derivative Financial Instruments on Income Statement (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Interest Rate Contracts [Member] | Interest Income - Loans and Leases [Member]
Derivative [Line Items]
Derivative financial instrument, net	$ 687	$ 809
Interest Rate Contracts [Member] | Interest Expense - Short-term Borrowings [Member]
Derivative [Line Items]
Derivative financial instrument, net	150
Interest Rate Swap [Member] | Other Income [Member]
Derivative [Line Items]
Derivative financial instrument, net	(41)	$ (107)
Credit Risk Contracts [Member] | Other Income [Member]
Derivative [Line Items]
Derivative financial instrument, net	$ (71)

XML

Commitments, Credit Risk and Contingencies - Summary of Off-Balance Sheet Credit Risk Information (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Commitments to Extend Credit [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Extended credit and standby letters of credit	$ 4,463,138	$ 3,781,719
Standby Letters of Credit [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Extended credit and standby letters of credit	$ 118,167	$ 92,979

XML

Commitments, Credit Risk and Contingencies - Additional Information (Detail)	Mar. 31, 2016
Commitments and Contingencies Disclosure [Abstract]
Percentage of Commitments to extend credit dependent upon the financial condition of the customers	75.40%

XML

Stock Incentive Plans - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Apr. 06, 2013	Jun. 16, 2009
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock awards issued	0	0
Common stock shares available under incentive compensation plans	3,310,508
Unrecognized compensation expense	$ 8,097
Stock options exercised	24,806	60,094
Intrinsic value of outstanding and exercisable stock options	$ 10,045
Common shares available for purchase under warrants				651,042
Annapolis Bancorp, Inc. [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Warrant issued, exercise price	$ 3.21
Warrant issued	342,564
Warrants converted to purchase common stock	380,390
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense related to restricted stock awards	$ 1,136	$ 340
Tax benefit related to restricted stock awards	398	119
Total fair value of awards vested	4,424	$ 5,740
Unrecognized compensation expense	8,097
Amount subject to accelerated vesting under Incentive Compensation Plan	$ 40
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options exercised	24,806	60,094
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common shares available for purchase under warrants	1,302,083
Service-Based Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period of awards issued, years	3 years
Unrecognized compensation expense	$ 3,178
Performance-Based Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period of awards issued, years	3 years
Unrecognized compensation expense	$ 4,919
Performance-Based Awards [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock percentage of number of units issued	175.00%
Performance-Based Awards [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock percentage of number of units issued	0.00%
Warrant Expires in 2019 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Warrant issued, exercise price	$ 11.52
Warrant Expires in 2019 [Member] | Annapolis Bancorp, Inc. [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Warrant issued, exercise price			$ 3.57
Market Based Restricted Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock percentage of number of units issued	100.00%

XML

Stock Incentive Plans - Summary of Information Concerning Restricted Stock Awards (Detail) - $ / shares	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Shares, Unvested awards outstanding at beginning of period	1,548,444	1,354,093
Shares, Net adjustment due to performance		(46,956)
Shares, Vested	(363,799)	(458,450)
Shares, Forfeited	(6,368)	(2,357)
Shares, Dividend reinvestment	10,870	7,656
Shares, Unvested shares outstanding at end of year	1,189,147	853,986
Weighted Average Grant Price per Share, Unvested awards outstanding at beginning of period	$ 12.85	$ 11.86
Weighted Average Grant Price per Share, Net adjustment due to performance		10.25
Weighted Average Grant Price per Share, Vested	12.07	10.60
Weighted Average Grant Price per Share, Forfeited	12.79	17.93
Weighted Average Grant Price per Share, Dividend reinvestment	11.50	14.24
Weighted Average Grant Price per Share, Unvested Shares outstanding at end of year	$ 13.08	$ 12.63

XML

Stock Incentive Plans - Components of Restricted Stock Awards (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested awards	1,189,147	1,548,444	853,986	1,354,093
Unrecognized compensation expense	$ 8,097
Intrinsic value	$ 15,471
Weighted average remaining life (in years)	2 years 29 days
Service-Based Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested awards	514,702
Unrecognized compensation expense	$ 3,178
Intrinsic value	$ 6,696
Weighted average remaining life (in years)	1 year 8 months 9 days
Performance-Based Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested awards	674,445
Unrecognized compensation expense	$ 4,919
Intrinsic value	$ 8,775
Weighted average remaining life (in years)	2 years 4 months 13 days

XML

Stock Incentive Plans - Summary of Information Concerning Stock Option Awards (Detail) - $ / shares	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Shares, Options outstanding at beginning of period	435,340	568,834
Shares, Assumed from acquisitions	1,707,036
Shares, Exercised	(24,806)	(60,094)
Shares, Forfeited	(92,650)	(2,182)
Shares, Options outstanding and exercisable at end of period	2,024,920	506,558
Weighted Average Price per Share, Options outstanding at beginning of period	$ 8.86	$ 8.86
Weighted Average Price per Share, Assumed from acquisition	7.83
Weighted Average Price per Share, Exercised	6.38	5.04
Weighted Average Price per Share, Forfeited	6.69	4.34
Weighted Average Price per Share, Options outstanding and exercisable at end of period	$ 8.12	$ 9.33

XML

Retirement Plans - Additional Information (Detail) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2016 USD ($) RetirementPlans	Mar. 31, 2015 USD ($)	Dec. 31, 2008
Retirement Plans Disclosure [Abstract]
Number of supplemental non-qualified retirement plans sponsored by the Corporation | RetirementPlans	2
Consecutive calendar years used to calculate BRP benefits			5 years
Term of employment for consideration of BRP			10 years
Percent of employer match	100.00%
Employee contribution percentage	6.00%
Additional discretionary contribution, performance goals, percentage	3.00%
Contribution expense of the Corporation | $	$ 2,462	$ 2,167

XML

Retirement Plans - Net Periodic Benefit Credit for Defined Benefit Plans (Detail) - Defined Benefit Plans [Member] - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ (4)	$ 17
Interest cost	1,544	1,477
Expected return on plan assets	(2,353)	(2,491)
Amortization:
Unrecognized prior service cost	2	2
Unrecognized loss	608	536
Net periodic pension credit	$ (203)	$ (459)

XML

Comprehensive Income - Components of Comprehensive Income, Net of Related Tax (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Components Of Comprehensive Income [Abstract]
Net income	$ 26,132	$ 40,343
Other comprehensive income:
Securities available for sale, Unrealized gains arising during the period, net of tax expense of $7,719 and $4,523	14,335	8,400
Securities available for sale, Reclassification adjustment for (gains) losses included in net income, net of tax expense of $25 and $(3)	(46)	6
Unrealized gains on derivative instruments arising during the period, net of tax expense of $1,693 and $1,504	3,145	2,793
Reclassification adjustment on derivative instruments for gains included in net income, net of tax expense of $188 and $283	(349)	(526)
Unrealized gains on pension and postretirement benefit obligations arising during the period, net of tax expense of $214 and $189	397	350
Other comprehensive income	17,482	11,023
Comprehensive income	$ 43,614	$ 51,366

XML

Comprehensive Income - Components of Comprehensive Income, Net of Related Tax (Parenthetical) (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Components Of Comprehensive Income [Abstract]
Securities available for sale, Unrealized gains arising during the period, net of tax expense	$ 7,719	$ 4,523
Securities available for sale, Reclassification adjustment for gains included in net income, tax expense	25	(3)
Unrealized gains on derivative instruments arising during the period, net of tax expense	1,693	1,504
Reclassification adjustment on derivative instruments for gains included in net income, tax expense	188	283
Unrealized gains on pension and postretirement benefit obligations arising during the period, tax expense	$ 214	$ 189

XML

Comprehensive Income - Changes in AOCI, Net of Tax, by Component (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income (loss), balance at beginning of period	$ (51,133)
Other comprehensive income before reclassifications	17,877
Amounts reclassified from AOCI	(395)
Net current period other comprehensive income	17,482	$ 11,023
Accumulated other comprehensive income (loss), balance at end of period	(33,651)
Unrealized Net Gains (Losses) on Securities Available for Sale [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income (loss), balance at beginning of period	(3,873)
Other comprehensive income before reclassifications	14,335
Amounts reclassified from AOCI	(46)
Net current period other comprehensive income	14,289
Accumulated other comprehensive income (loss), balance at end of period	10,416
Unrealized Net Gains (Losses) on Derivative Instruments [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income (loss), balance at beginning of period	1,440
Other comprehensive income before reclassifications	3,145
Amounts reclassified from AOCI	(349)
Net current period other comprehensive income	2,796
Accumulated other comprehensive income (loss), balance at end of period	4,236
Unrecognized Pension and Postretirement Obligations [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income (loss), balance at beginning of period	(48,700)
Other comprehensive income before reclassifications	397
Net current period other comprehensive income	397
Accumulated other comprehensive income (loss), balance at end of period	$ (48,303)

XML

Earnings Per Common Share - Computation of Basic and Diluted Earnings Per Common Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Earnings Per Share [Abstract]
Net income	$ 26,132	$ 40,343
Less: Preferred stock dividends	2,010	2,010
Net income available to common stockholders	$ 24,122	$ 38,333
Basic weighted average common shares outstanding	193,585,702	174,152,283
Net effect of dilutive stock options, warrants, restricted stock and convertible debt	1,292,220	1,673,693
Diluted weighted average common shares outstanding	194,877,922	175,825,976
Basic	$ 0.12	$ 0.22
Diluted	$ 0.12	$ 0.22

XML

Earnings Per Common Share - Additional Information (Detail) - shares	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Earnings Per Share [Abstract]
Common stock excluded from computation of diluted earnings per share	15,501	24,272

XML

Cash Flow Information - Summary of Supplemental Cash Flow Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Statement of Cash Flows [Abstract]
Interest paid on deposits and other borrowings	$ 13,794	$ 11,626
Income taxes paid	0	0
Transfers of loans to other real estate owned	8,049	1,965
Financing of other real estate owned sold	$ 62	$ 166

XML

Business Segments - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2016 Segment
Segment Reporting [Abstract]
Number of reportable segments	4

XML

Business Segments - Financial Information for Segments of Corporation (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Segment Reporting Information [Line Items]
Interest income	$ 155,754	$ 133,369
Interest expense	15,400	11,448
Net interest income	140,354	121,921
Provision for credit losses	11,768	8,136
Non-interest income	46,044	38,182
Non-interest expense	133,999	92,540
Intangible amortization	2,649	2,115
Income tax expense (benefit)	11,850	16,969
Net income (loss)	26,132	40,343
Total assets	20,324,524	16,278,848	$ 17,557,662
Total intangibles	1,087,050	875,246
Operating Segments [Member] | Community Banking [Member]
Segment Reporting Information [Line Items]
Interest income	143,978	122,118
Interest expense	12,594	9,941
Net interest income	131,384	112,177
Provision for credit losses	9,917	6,327
Non-interest income	31,233	27,301
Non-interest expense	118,048	77,079
Intangible amortization	2,441	1,947
Income tax expense (benefit)	10,117	15,931
Net income (loss)	22,094	38,194
Total assets	20,151,815	16,100,851
Total intangibles	1,062,079	852,764
Operating Segments [Member] | Wealth Management [Member]
Segment Reporting Information [Line Items]
Non-interest income	8,816	8,387
Non-interest expense	7,089	6,493
Intangible amortization	65	68
Income tax expense (benefit)	605	658
Net income (loss)	1,057	1,168
Total assets	20,540	21,125
Total intangibles	10,383	10,652
Operating Segments [Member] | Insurance [Member]
Segment Reporting Information [Line Items]
Interest income	22	23
Net interest income	22	23
Non-interest income	4,194	3,593
Non-interest expense	3,301	4,170
Intangible amortization	143	100
Income tax expense (benefit)	275	(226)
Net income (loss)	497	(428)
Total assets	21,680	18,464
Total intangibles	12,779	10,021
Operating Segments [Member] | Consumer Finance [Member]
Segment Reporting Information [Line Items]
Interest income	9,785	9,593
Interest expense	941	860
Net interest income	8,844	8,733
Provision for credit losses	1,526	1,574
Non-interest income	716	676
Non-interest expense	5,204	4,808
Income tax expense (benefit)	1,112	1,149
Net income (loss)	1,718	1,878
Total assets	188,547	182,662
Total intangibles	1,809	1,809
Parent and Other [Member]
Segment Reporting Information [Line Items]
Interest income	1,969	1,635
Interest expense	1,865	647
Net interest income	104	988
Provision for credit losses	325	235
Non-interest income	1,085	(1,775)
Non-interest expense	357	(10)
Income tax expense (benefit)	(259)	(543)
Net income (loss)	766	(469)
Total assets	$ (58,058)	$ (44,254)

XML

Fair Value Measurements - Additional Information (Detail) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Fair Value Measurements Disclosure [Line Items]
Percentage of securities using market-based information	99.90%
Percentage of securities using model-based techniques	0.10%
Minimum reserves for commercial loan	$ 500,000
Impaired loans, carrying amount	82,849,000		$ 70,689,000
Allocated allowance for loan losses	6,012,000
Fair value of allocated allowance	8,214,000
Estimated costs to sell	162,000
Provision for fair value measurements included in allowance for loan losses	3,362,000
Carrying amount of OREO	2,616,000
Written down of OREO	1,803,000
Fair value of OREO	2,016,000
Estimated cost to sell OREO	213,000
Loss from OREO included in earnings	$ 813,000
Short-term borrowings approximate fair value for amounts that mature, days, less than	90 days
Fair Value, Measurements, Nonrecurring [Member]
Fair Value Measurements Disclosure [Line Items]
Impaired loans, carrying amount	$ 14,064,000
Allocated allowance for loan losses	8,214,000		3,828,000
Fair value of OREO	2,016,000		7,831,000
Equity Securities [Member]
Fair Value Measurements Disclosure [Line Items]
Transfer of equity security to non-marketable equity securities, included in other assets			$ 56,000
Assets Still Held [Member]
Fair Value Measurements Disclosure [Line Items]
Change in unrealized gains or losses included in earnings relating to assets still held	$ 0	$ 0

XML

Fair Value Measurements - Balances of Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value, Available for sale securities	$ 2,099,343	$ 1,630,567
Derivative assets	88,006	53,202
Derivative liabilities	82,219	51,605
U.S. Treasury [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value, Available for sale debt securities	29,994	29,796
U.S. Government-Sponsored Entities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value, Available for sale debt securities	401,078	367,994
Agency Collateralized Mortgage Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value, Available for sale debt securities	525,630	495,830
Assets measured at fair value, Available for sale securities	525,630
Non-Agency Collateralized Mortgage Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value, Available for sale debt securities	1,096	1,190
Assets measured at fair value, Available for sale securities	1,096
Commercial Mortgage-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value, Available for sale debt securities	3,673	4,287
Assets measured at fair value, Available for sale securities	3,673
States of the U.S. and Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value, Available for sale debt securities	39,804	11,057
Other Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value, Available for sale debt securities	8,908	14,286
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value, Available for sale securities	235	225
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value, Available for sale securities	2,097,593	1,628,719
Derivative assets	88,006	53,202
Derivative liabilities	82,219	51,605
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value, Available for sale securities	1,515	1,623
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value, Available for sale debt securities	2,098,048	1,629,271
Assets measured at fair value, Available for sale equity securities	1,295	1,296
Assets measured at fair value, Available for sale securities	2,099,343	1,630,567
Derivative assets	88,006	53,202
Assets measured at fair value, Total	2,187,349	1,683,769
Liabilities measured at fair value, Total	82,219	51,605
Fair Value, Measurements, Recurring [Member] | U.S. Treasury [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value, Available for sale debt securities	29,994	29,796
Fair Value, Measurements, Recurring [Member] | U.S. Government-Sponsored Entities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value, Available for sale debt securities	401,078	367,994
Fair Value, Measurements, Recurring [Member] | Agency Collateralized Mortgage Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value, Available for sale debt securities	525,630	495,830
Fair Value, Measurements, Recurring [Member] | Non-Agency Collateralized Mortgage Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value, Available for sale debt securities	1,096	1,190
Fair Value, Measurements, Recurring [Member] | Commercial Mortgage-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value, Available for sale debt securities	3,673	4,287
Fair Value, Measurements, Recurring [Member] | States of the U.S. and Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value, Available for sale debt securities	39,804	11,057
Fair Value, Measurements, Recurring [Member] | Other Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value, Available for sale debt securities	8,908	14,286
Fair Value, Measurements, Recurring [Member] | Trading Assets [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	80,125	50,017
Fair Value, Measurements, Recurring [Member] | Not for Trading Assets [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	7,881	3,185
Fair Value, Measurements, Recurring [Member] | Financial Services Industry [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value, Available for sale equity securities	1,162	1,168
Fair Value, Measurements, Recurring [Member] | Insurance Services Industry [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value, Available for sale equity securities	133	128
Fair Value, Measurements, Recurring [Member] | Agency Mortgage-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value, Available for sale debt securities	1,087,865	704,831
Fair Value, Measurements, Recurring [Member] | Trading Liabilities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities	80,659	50,510
Fair Value, Measurements, Recurring [Member] | Not for Trading Liabilities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities	1,560	1,095
Fair Value, Measurements, Recurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value, Available for sale equity securities	235	225
Assets measured at fair value, Available for sale securities	235	225
Assets measured at fair value, Total	235	225
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Financial Services Industry [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value, Available for sale equity securities	102	97
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Insurance Services Industry [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value, Available for sale equity securities	133	128
Fair Value, Measurements, Recurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value, Available for sale debt securities	2,096,957	1,628,087
Assets measured at fair value, Available for sale equity securities	636	632
Assets measured at fair value, Available for sale securities	2,097,593	1,628,719
Derivative assets	88,006	53,202
Assets measured at fair value, Total	2,185,599	1,681,921
Liabilities measured at fair value, Total	82,219	51,605
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | U.S. Treasury [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value, Available for sale debt securities	29,994	29,796
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | U.S. Government-Sponsored Entities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value, Available for sale debt securities	401,078	367,994
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Agency Collateralized Mortgage Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value, Available for sale debt securities	525,630	495,830
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Non-Agency Collateralized Mortgage Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value, Available for sale debt securities	5	6
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Commercial Mortgage-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value, Available for sale debt securities	3,673	4,287
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | States of the U.S. and Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value, Available for sale debt securities	39,804	11,057
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Other Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value, Available for sale debt securities	8,908	14,286
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Trading Assets [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	80,125	50,017
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Not for Trading Assets [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	7,881	3,185
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Financial Services Industry [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value, Available for sale equity securities	636	632
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Agency Mortgage-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value, Available for sale debt securities	1,087,865	704,831
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Trading Liabilities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities	80,659	50,510
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Not for Trading Liabilities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities	1,560	1,095
Fair Value, Measurements, Recurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value, Available for sale debt securities	1,091	1,184
Assets measured at fair value, Available for sale equity securities	424	439
Assets measured at fair value, Available for sale securities	1,515	1,623
Assets measured at fair value, Total	1,515	1,623
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Non-Agency Collateralized Mortgage Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value, Available for sale debt securities	1,091	1,184
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Financial Services Industry [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value, Available for sale equity securities	$ 424	$ 439

XML

Fair Value Measurements - Additional Information about Assets Measured at Fair Value on Recurring Basis (Detail) - Fair Value, Measurements, Recurring [Member] - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance at beginning of period	$ 1,623	$ 1,895
Total gains (losses) - realized/unrealized, Included in earnings	0	0
Total gains (losses) - realized/unrealized, Included in other comprehensive income	(43)	16
Accretion included in earnings	2	5
Purchases	0	0
Issuances	0	0
Sales/redemptions	0	0
Settlements	(67)	(237)
Transfers from Level 3		(56)
Transfers into Level 3	0	0
Balance at end of period	1,515	1,623
Equity Securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance at beginning of period	439	475
Total gains (losses) - realized/unrealized, Included in earnings	0	0
Total gains (losses) - realized/unrealized, Included in other comprehensive income	(15)	20
Purchases	0	0
Issuances	0	0
Sales/redemptions	0	0
Transfers from Level 3		(56)
Transfers into Level 3	0	0
Balance at end of period	424	439
Residential Non-Agency Collateralized Mortgage Obligations [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance at beginning of period	1,184	1,420
Total gains (losses) - realized/unrealized, Included in earnings	0	0
Total gains (losses) - realized/unrealized, Included in other comprehensive income	(28)	(4)
Accretion included in earnings	2	5
Purchases	0	0
Issuances	0	0
Sales/redemptions	0	0
Settlements	(67)	(237)
Transfers into Level 3	0	0
Balance at end of period	$ 1,091	$ 1,184

XML

Fair Value Measurements - Additional Information about Assets Measured at Fair Value on Non-Recurring Basis (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	$ 6,012
Other real estate owned	2,016
Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	8,214	$ 3,828
Other real estate owned	2,016	7,831
Level 2 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	957	124
Other real estate owned	1,148	5,705
Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	7,257	3,704
Other real estate owned	$ 868	$ 2,126

XML

Fair Value Measurements - Fair Values of Corporation's Financial Instruments (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015	Dec. 31, 2014
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	$ 345,945	$ 489,119	$ 234,246	$ 287,393
Securities available for sale	2,099,343	1,630,567
Securities held to maturity	1,776,020	1,637,061
Securities held to maturity	1,803,453	1,643,416
Derivative assets	88,006	53,202
Deposits	15,390,483	12,623,463
Short-term borrowings	1,563,888	2,048,896
Long-term borrowings	657,445	641,480
Derivative liabilities	82,219	51,605
Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	345,945	489,119
Securities available for sale	2,099,343	1,630,567
Securities held to maturity	1,803,453	1,643,416
Net loans and leases, including loans held for sale	13,969,315	11,863,882
Derivative assets	88,006	53,202
Accrued interest receivable	53,609	44,920
Deposits	15,397,218	12,610,914
Short-term borrowings	1,563,947	2,048,943
Long-term borrowings	656,929	637,935
Derivative liabilities	82,219	51,605
Accrued interest payable	9,063	7,457
Carrying Amount [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	345,945	489,119
Securities available for sale	2,099,343	1,630,567
Securities held to maturity	1,776,020	1,637,061
Net loans and leases, including loans held for sale	14,025,482	12,053,209
Derivative assets	88,006	53,202
Accrued interest receivable	53,609	44,920
Deposits	15,390,483	12,623,463
Short-term borrowings	1,563,888	2,048,896
Long-term borrowings	657,445	641,480
Derivative liabilities	82,219	51,605
Accrued interest payable	9,063	7,457
Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	345,945	489,119
Securities available for sale	235	225
Accrued interest receivable	53,609	44,920
Deposits	12,700,899	10,157,997
Short-term borrowings	1,563,947	2,048,943
Accrued interest payable	9,063	7,457
Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for sale	2,097,593	1,628,719
Securities held to maturity	1,801,022	1,640,721
Derivative assets	88,006	53,202
Deposits	2,696,319	2,452,917
Derivative liabilities	82,219	51,605
Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for sale	1,515	1,623
Securities held to maturity	2,431	2,695
Net loans and leases, including loans held for sale	13,969,315	11,863,882
Long-term borrowings	$ 656,929	$ 637,935