10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-Q

(Mark One)

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

For the quarterly period ended September 30, 2018

☐ 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)

Pennsylvania	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  ☒    No  ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted 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 such files).    Yes  ☒    No  ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See definition of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act. (Check one):

Large Accelerated Filer	☒	Accelerated Filer	☐
Non-accelerated Filer	☐	Smaller reporting company	☐
		Emerging Growth Company	☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

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

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	October 31, 2018
Common Stock, $0.01 Par Value	324,296,105	Shares

F.N.B. CORPORATION

FORM 10-Q

September 30, 2018

INDEX

		PAGE
PART I – FINANCIAL INFORMATION
	Glossary of Acronyms and Terms	3
Item 1.	Financial Statements
	Consolidated Balance Sheets	4
	Consolidated Statements of Income	5
	Consolidated Statements of Comprehensive Income	6
	Consolidated Statements of Stockholders’ Equity	7
	Consolidated Statements of Cash Flows	8
	Notes to Consolidated Financial Statements	9
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	59
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	91
Item 4.	Controls and Procedures	92
PART II – OTHER INFORMATION
Item 1.	Legal Proceedings	92
Item 1A.	Risk Factors	92
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	92
Item 3.	Defaults Upon Senior Securities	92
Item 4.	Mine Safety Disclosures	92
Item 5.	Other Information	93
Item 6.	Exhibits	93
Signatures		93

2

Glossary of Acronyms and Terms

AFS Available for sale

ALCO Asset/Liability Committee

AOCI Accumulated other comprehensive income

ASC Accounting Standards Codification

ASU Accounting Standards Update

BOLI Bank owned life insurance

Basel III Basel III Capital Rules

EVE Economic value of equity

FDIC Federal Deposit Insurance Corporation

FHLB Federal Home Loan Bank

FNB F.N.B. Corporation

FNBPA First National Bank of Pennsylvania

FRB Board of Governors of the Federal Reserve System

FTE Fully taxable equivalent

FVO Fair value option

GAAP U.S. generally accepted accounting principles

HTM Held to maturity

IRLC Interest rate lock commitments

LCR Liquidity Coverage Ratio

LIBOR London Inter-bank Offered Rate

MCH Months of Cash on Hand

MSR Mortgage servicing rights

OCC Office of the Comptroller of the Currency

OREO Other real estate owned

OTTI Other-than-temporary impairment

Regency Regency Finance Company

SBA Small Business Administration

SEC Securities and Exchange Commission

TCJA Tax Cuts and Jobs Act of 2017

TDR Troubled debt restructuring

TPS Trust preferred securities

UST U.S. Department of the Treasury

YDKN Yadkin Financial Corporation

3

PART I – FINANCIAL INFORMATION

ITEM 1.    FINANCIAL STATEMENTS

F.N.B. CORPORATION AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS

Dollars in thousands, except share and per share data

	September 30, 2018			December 31, 2017
	(Unaudited)
Assets
Cash and due from banks	$	397,268		$	408,718
Interest bearing deposits with banks	40,585			70,725
Cash and Cash Equivalents	437,853			479,443
Securities available for sale	3,298,894			2,764,562
Debt securities held to maturity (fair value of $3,032,947 and $3,218,379)	3,206,345			3,242,268
Loans held for sale (includes$24,943 and $56,458 measured at fair value) (1)	42,083			92,891
Loans and leases, net of unearned income of $4,926 and $50,680	21,839,403			20,998,766
Allowance for credit losses	(177,881		)	(175,380		)
Net Loans and Leases	21,661,522			20,823,386
Premises and equipment, net	323,244			336,540
Goodwill	2,249,541			2,249,188
Core deposit and other intangible assets, net	80,290			92,075
Bank owned life insurance	533,991			526,818
Other assets	783,832			810,464
Total Assets	$	32,617,595		$	31,417,635
Liabilities
Deposits:
Non-interest-bearing demand	$	6,018,852		$	5,720,030
Interest-bearing demand	9,519,704			9,571,038
Savings	2,513,679			2,488,178
Certificates and other time deposits	5,447,751			4,620,479
Total Deposits	23,499,986			22,399,725
Short-term borrowings	3,679,380			3,678,337
Long-term borrowings	627,049			668,173
Other liabilities	286,316			262,206
Total Liabilities	28,092,731			27,008,441
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 – 326,081,395 and 325,095,055 shares	3,263			3,253
Additional paid-in capital	4,046,168			4,033,567
Retained earnings	516,865			367,658
Accumulated other comprehensive loss	(126,840		)	(83,052		)
Treasury stock –1,806,209 and 1,629,915 shares at cost	(21,474		)	(19,114		)
Total Stockholders’ Equity	4,524,864			4,409,194
Total Liabilities and Stockholders’ Equity	$	32,617,595		$	31,417,635

(1) Amount represents loans for which we have elected the fair value option. See Note 18.

See accompanying Notes to Consolidated Financial Statements (unaudited)

4

F.N.B. CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF INCOME

Dollars in thousands, except per share data

Unaudited

	Three Months Ended September 30,				Nine Months Ended September 30,
	2018		2017		2018		2017
Interest Income
Loans and leases, including fees	$	259,744	$	232,834	$	756,733	$	622,554
Securities:
Taxable	30,467		24,763		86,341		72,258
Tax-exempt	7,259		5,597		20,813		13,675
Dividends	—		—		—		85
Other	345		320		972		669
Total Interest Income	297,815		263,514		864,859		709,241
Interest Expense
Deposits	38,175		18,987		95,693		47,480
Short-term borrowings	19,576		14,387		53,192		32,020
Long-term borrowings	5,277		4,909		15,727		13,343
Total Interest Expense	63,028		38,283		164,612		92,843
Net Interest Income	234,787		225,231		700,247		616,398
Provision for credit losses	15,975		16,768		46,024		44,374
Net Interest Income After Provision for Credit Losses	218,812		208,463		654,223		572,024
Non-Interest Income
Service charges	31,922		32,212		93,113		88,883
Trust services	6,395		5,748		19,312		17,210
Insurance commissions and fees	5,001		5,029		14,703		14,517
Securities commissions and fees	4,491		4,038		13,336		11,548
Capital markets income	5,100		2,822		16,168		11,673
Mortgage banking operations	5,962		5,437		17,431		14,400
Bank owned life insurance	4,399		3,123		10,761		8,368
Net securities gains	—		2,777		31		5,895
Other	11,564		4,965		22,371		14,851
Total Non-Interest Income	74,834		66,151		207,226		187,345
Non-Interest Expense
Salaries and employee benefits	89,535		82,383		277,532		240,860
Net occupancy	14,219		13,723		45,936		39,132
Equipment	13,593		13,711		41,241		35,761
Amortization of intangibles	3,805		4,805		11,834		12,716
Outside services	17,176		15,439		48,946		41,965
FDIC insurance	8,821		9,183		26,822		23,946
Bank shares and franchise taxes	3,237		2,814		9,929		8,536
Merger-related	—		1,381		—		55,459
Other	20,343		20,304		62,585		56,637
Total Non-Interest Expense	170,729		163,743		524,825		515,012
Income Before Income Taxes	122,917		110,871		336,624		244,357
Income taxes	22,154		33,178		63,893		69,279
Net Income	100,763		77,693		272,731		175,078
Preferred stock dividends	2,010		2,010		6,030		6,030
Net Income Available to Common Stockholders	$	98,753	$	75,683	$	266,701	$	169,048
Earnings per Common Share
Basic	$	0.30	$	0.23	$	0.82	$	0.57
Diluted	$	0.30	$	0.23	$	0.82	$	0.57
Cash Dividends per Common Share	$	0.12	$	0.12	$	0.36	$	0.36

See accompanying Notes to Consolidated Financial Statements (unaudited)

5

F.N.B. CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

Dollars in thousands

Unaudited

	Three Months Ended September 30,						Nine Months Ended September 30,
	2018			2017			2018			2017
Net income	$	100,763		$	77,693		$	272,731		$	175,078
Other comprehensive (loss) income:
Securities available for sale:
Unrealized (losses) gains arising during the period, net of tax (benefit) expense of $(3,502), $724, $(14,492) and $4,503	(12,310		)	1,288			(50,970		)	8,027
Reclassification adjustment for gains included in net income, net of tax expense of $0, $215, $7 and $223	—			(384		)	(24		)	(398		)
Derivative instruments:
Unrealized gains (losses) arising during the period, net of tax expense (benefit) of $396, $76, $1,989and $(1,265)	1,391			136			6,991			(2,254		)
Reclassification adjustment for (gains) losses included in net income, net of tax expense (benefit) of$141, $(44), $346and $45	(495		)	78			(1,216		)	(81		)
Pension and postretirement benefit obligations:
Unrealized gains arising during the period, net of tax expense of $130, $535, $404and$987	459			955			1,431			1,765
Other Comprehensive (Loss) Income	(10,955		)	2,073			(43,788		)	7,059
Comprehensive Income	$	89,808		$	79,766		$	228,943		$	182,137

See accompanying Notes to Consolidated Financial Statements (unaudited)

6

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, 2017	$	106,882	$	2,125	$	2,234,366	$	304,397		$	(61,369	)	$	(14,784	)	$	2,571,617
Comprehensive income							175,078			7,059						182,137
Dividends declared:
Preferred stock							(6,030		)							(6,030		)
Common stock: $0.36/share							(103,584		)							(103,584		)
Issuance of common stock			10		5,178								(4,313		)	875
Issuance of common stock - acquisitions			1,116		1,782,308											1,783,424
Assumption of warrant due to acquisition					1,394											1,394
Restricted stock compensation					6,088											6,088
Balance at September 30, 2017	$	106,882	$	3,251	$	4,029,334	$	369,861		$	(54,310	)	$	(19,097	)	$	4,435,921
Balance at January 1, 2018	$	106,882	$	3,253	$	4,033,567	$	367,658		$	(83,052	)	$	(19,114	)	$	4,409,194
Comprehensive income (loss)							272,731			(43,788		)				228,943
Dividends declared:
Preferred stock							(6,030		)							(6,030		)
Common stock: $0.36/share							(117,494		)							(117,494		)
Issuance of common stock			10		5,291								(2,360		)	2,941
Restricted stock compensation					7,310											7,310
Balance at September 30, 2018	$	106,882	$	3,263	$	4,046,168	$	516,865		$	(126,840	)	$	(21,474	)	$	4,524,864

See accompanying Notes to Consolidated Financial Statements (unaudited)

7

F.N.B. CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS

Dollars in thousands

Unaudited

	Nine Months Ended September 30,
	2018			2017
Operating Activities
Net income	$	272,731		$	175,078
Adjustments to reconcile net income to net cash flows provided by operating activities:
Depreciation, amortization and accretion	82,074			60,349
Provision for credit losses	46,024			44,374
Deferred tax expense	28,867			36,706
Net securities gains	(31		)	(5,895		)
Tax benefit of stock-based compensation	(378		)	(735		)
Loans originated for sale	(864,757		)	(787,957		)
Loans sold	933,183			709,323
Gain on sale of loans	(17,618		)	(10,583		)
Net change in:
Interest receivable	(8,259		)	(10,104		)
Interest payable	6,679			938
Bank owned life insurance	(7,204		)	(8,100		)
Other, net	45,530			(78,095		)
Net cash flows provided by operating activities	516,841			125,299
Investing Activities
Net change in loans and leases	(1,054,971		)	(886,944		)
Securities available for sale:
Purchases	(1,029,263		)	(1,042,784		)
Sales	—			786,762
Maturities	421,666			404,618
Debt securities held to maturity:
Purchases	(244,367		)	(842,020		)
Sales	—			57,050
Maturities	275,788			309,075
Purchase of bank owned life insurance	(39		)	(25,102		)
Increase in premises and equipment	(19,267		)	(46,781		)
Net cash received in business combinations and divestitures	141,082			196,964
Other, net	70			—
Net cash flows used in investing activities	(1,509,301		)	(1,089,162		)
Financing Activities
Net change in:
Demand (non-interest bearing and interest bearing) and savings accounts	272,989			384,103
Time deposits	830,662			306,745
Short-term borrowings	1,043			573,102
Proceeds from issuance of long-term borrowings	26,612			96,917
Repayment of long-term borrowings	(67,163		)	(150,420		)
Net proceeds from issuance of common stock	10,251			6,963
Cash dividends paid:
Preferred stock	(6,030		)	(6,030		)
Common stock	(117,494		)	(103,584		)
Net cash flows provided by financing activities	950,870			1,107,796
Net Increase (Decrease) in Cash and Cash Equivalents	(41,590		)	143,933
Cash and cash equivalents at beginning of period	479,443			371,407
Cash and Cash Equivalents at End of Period	$	437,853		$	515,340

See accompanying Notes to Consolidated Financial Statements (unaudited)

8

F.N.B. CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

September 30, 2018

The terms “FNB,” “the Corporation,” “we,” “us” and “our” throughout this Report mean F.N.B. Corporation and our consolidated subsidiaries, unless the context indicates that we refer only to the parent company, F.N.B. Corporation. When we refer to "FNBPA" in this Report, we mean our only bank subsidiary, First National Bank of Pennsylvania, and its subsidiaries.

NATURE OF OPERATIONS

F.N.B. Corporation, headquartered in Pittsburgh, Pennsylvania, is a diversified financial services company operating in six states. Through FNBPA, we have over 150 years of serving the financial and banking needs of our customers. We hold a significant retail deposit market share in attractive markets including: Pittsburgh, Pennsylvania; Baltimore, Maryland; Cleveland, Ohio; and Charlotte, Raleigh-Durham and the Piedmont Triad (Winston-Salem, Greensboro and High Point) in North Carolina. As of September 30, 2018, we had 397 banking offices throughout Pennsylvania, Ohio, Maryland, West Virginia, North Carolina and South Carolina. We provide a full range of commercial banking, consumer banking and wealth management solutions through our subsidiary network which is led by our largest affiliate, FNBPA. Commercial banking solutions include corporate banking, small business banking, investment real estate financing, 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.

NOTE 1.    SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Basis of Presentation

Our accompanying Consolidated Financial Statements and these Notes to the Financial Statements include subsidiaries in which we have a controlling financial interest. We own and operate FNBPA, First National Trust Company, First National Investment Services Company, LLC, F.N.B. Investment Advisors, Inc., First National Insurance Agency, LLC, Bank Capital Services, LLC and F.N.B. Capital Corporation, LLC, and include 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 our financial position and results of operations in accordance with U.S. generally accepted accounting principles. All significant intercompany balances and transactions have been eliminated. Certain prior period amounts have been reclassified to conform to the current period presentation. Such reclassifications had no impact on our net income and stockholders’ equity. Events occurring subsequent to the date of the September 30, 2018 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.

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 FNB expects for the full year. These interim unaudited Consolidated Financial Statements should be read in conjunction with the audited Consolidated Financial Statements and Notes thereto included in FNB’s 2017 Annual Report on Form 10-K filed with the SEC on February 28, 2018. For a detailed description of our significant accounting policies, see Note 1 "Summary of Significant Accounting Policies" in the 2017 Form 10-K. The accounting policies presented below have been added or amended for newly material items or the adoption of new accounting standards.

Use of Estimates

Our accounting and reporting policies conform with GAAP. The preparation of Financial Statements in conformity with GAAP requires us 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, accounting for acquired loans, fair value of financial instruments, goodwill and other intangible assets, income taxes and deferred tax assets and litigation.

9

Revenue from Contracts with Customers

We earn certain revenues from contracts with customers. These revenues are recognized when control of the promised services is transferred to the customers in an amount that reflects the consideration we expect to be entitled to in an exchange for those services.

In determining the appropriate revenue recognition for our contracts with customers, we consider whether the contract has commercial substance and is approved by both parties with identifiable contractual rights, payment terms, and the collectability of consideration is probable. Generally, we satisfy our performance obligations upon the completion of services at the amount to which we have the right to invoice or charge under contracts with an original expected duration of one year or less. We apply this guidance on a portfolio basis to contracts with similar characteristics and for which we believe the results would not differ materially from applying this guidance to individual contracts.

Our services provided under contracts with customers are transferred at the point in time when the services are rendered. Generally, we do not defer incremental direct costs to obtain contracts with customers that would be amortized in one year or less under the practical expedient. These costs are recognized as expense, primarily salary and benefit expense, in the period incurred.

Deposit Services.We recognize revenue on deposit services based on published fees for services provided. Demand and savings deposit customers have the right to cancel their depository arrangements and withdraw their deposited funds at any time without prior notice. When services involve deposited funds that can be retrieved by customers without penalties, we consider the service contract term to be day-to-day, where each day represents the renewal of the contract. The contract does not extend beyond the services performed and revenue is recognized at the end of the contract term (daily) as the performance obligation is satisfied.

No deposit services fees exist for long-term deposit products beyond early withdrawal penalties, which are earned on these products at the time of early termination.

Revenue from deposit services fees are reduced where we have a history of waived or reduced fees by customer request or due to a customer service issue, by historical experience, or another acceptable method in the same period as the related revenues. Revenues from deposit services are reported in the Consolidated Statements of Income as service charges and in the Community Banking segment as non-interest income.

Wealth Management Services.Wealth advisory and trust services are provided on a month-to-month basis and invoiced as services are rendered. Fees are based on a fixed amount or a scale based on the level of services provided or assets under management. The customer has the right to terminate their services agreement at any time. We determine the value of services performed based on the fee schedule in effect at the time the services are performed. Revenues from wealth advisory and trust services are reported in the Consolidated Statements of Income as trust services and securities commissions and fees, and in the Wealth segment as non-interest income.

Insurance Services.Insurance services include full-service insurance brokerage services offering numerous lines of commercial and personal insurance through major carriers to businesses and individuals within our geographic markets. We recognize revenue on insurance contracts in effect based on contractually specified commission payments on premiums that are paid by the customer to the insurance carrier. Contracts are cancellable at any time and we have no performance obligation to the customers beyond the time the insurance is placed into effect. Revenues from insurance services are reported in the Consolidated Statements of Income as insurance commissions and fees, and in the Insurance segment as non-interest income.

Debt Securities

Debt securities comprise a significant portion of our Consolidated Balance Sheets. Such securities can be classified as trading, HTM or AFS. As of September 30, 2018 and 2017, we did not hold any trading debt securities.

Debt securities HTM are the securities that management has the positive intent and ability to hold until their maturity. Such securities are carried at cost, adjusted for related amortization of premiums and accretion of discounts through interest income from securities, and subject to evaluation for OTTI.

Debt securities that are not classified as trading or HTM are classified as AFS. Such securities are carried at fair value with net unrealized gains and losses deemed to be temporary and OTTI attributable to non-credit factors reported separately as a component of other comprehensive income, net of tax.

10

We evaluate our debt securities in a loss position for OTTI on a quarterly basis at the individual security level based on our intent to sell. If we intend to sell the debt security or it is more likely than not we will be required to sell the security before recovery of its amortized cost basis, OTTI must be recognized in earnings equal to the entire difference between the investments’ amortized cost basis and its fair value. If we do not intend to sell the debt security and it is not more likely than not that we will be required to sell the security before recovery of its amortized cost basis, OTTI must be separated into the amount representing credit loss and the amount related to all other market factors. The amount related to credit loss will be recognized in earnings. The amount related to other market factors will be recognized in other comprehensive income, net of applicable taxes.

We perform our OTTI evaluation process in a consistent and systematic manner and include an evaluation of all available evidence. This process considers factors such as length of time and anticipated recovery period of the impairment, recent events specific to the issuer and recent experience regarding principal and interest payments.

Low Income Housing Tax Credit (LIHTC) Partnerships

We invest in various affordable housing projects that qualify for LIHTCs. The net investments are recorded in other assets on the Consolidated Balance Sheets. These investments generate a return through the realization of federal tax credits. We use the proportional amortization method to account for a majority of our investments in these entities. LIHTCs that do not meet the requirements of the proportional amortization method are recognized using the equity method. Our net investment in LIHTCs was $35.7 million and $20.9 million at September 30, 2018 and December 31, 2017, respectively. Our unfunded commitments in LIHTCs were $46.6 million and $67.2 million at September 30, 2018 and December 31, 2017, respectively.

Cloud Computing Arrangements

We evaluate fees paid for cloud computing arrangements to determine if those arrangements include the purchase of or license to use software that should be accounted for separately as internal-use software. If a contract includes the purchase or license to use 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.

In the third quarter of 2018, we early adopted, on a prospective basis, ASU 2018-15 (See Note 2) which allows for implementation costs for activities performed in cloud computing arrangements that are a service contract to be accounted for under the internal-use software guidance which allows for certain implementation costs to be capitalized depending on the nature of the costs and the project stage. Prior to the adoption of ASU 2018-15 all implementation costs for cloud computing arrangements that were a service contract were expensed as incurred.

NOTE 2.    NEW ACCOUNTING STANDARDS

The following table summarizes accounting pronouncements issued by the Financial Accounting Standards Board that we recently adopted or will be adopting in the future.

TABLE 2.1

Standard	Description	Required Date of Adoption	Financial Statements Impact
Cloud Computing Arrangement
ASU 2018-15, Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract	This Update aligns the requirements for capitalizing implementation costs of a hosting arrangement that is a service contract with that of internal-use software.	January 1, 2020 Early adoption is permitted.	We early adopted this Update in the third quarter of 2018 by a prospective application method. The adoption of this Update did not have a material effect on our Consolidated Financial Statements.

11

Standard	Description	Required Date of Adoption	Financial Statements Impact
Derivative and Hedging Activities
ASU 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities	This Update improves the financial reporting of hedging to better align with a company’s risk management activities. In addition, this Update makes certain targeted improvements to simplify the application of the current hedge accounting guidance.	January 1, 2019 Early adoption is permitted.	This Update is to be applied using a modified retrospective method. The presentation and disclosure guidance are applied prospectively. We are currently assessing the potential impact to our Consolidated Financial Statements.
Securities
ASU 2017-08, Receivables-Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities	This Update shortens the amortization period for the premium on certain purchased callable securities to the earliest call date. The accounting for purchased callable debt securities held at a discount does not change.	January 1, 2019 Early adoption is permitted.	This Update is to be applied using a modified retrospective transition method. The adoption of this Update is not expected to have a material effect on our Consolidated Financial Statements.
Retirement Benefits
ASU 2017-07, Compensation - Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost	This Update requires that an employer disaggregate the service cost component from the other components of net benefit cost. The amendments also provide explicit guidance on how to present the service cost component and the other components of net benefit cost in the Income Statement and allows only the service cost component of net benefit cost to be eligible for capitalization.	January 1, 2018	We adopted this Update in the first quarter of 2018 by a retrospective transition method. The adoption of this Update did not have a material effect on our Consolidated Financial Statements.
Statement of Cash Flows
ASU 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments (a consensus of the Emerging Issues Task Force)	This Update adds or clarifies guidance on eight cash flow issues.	January 1, 2018	We adopted this Update in the first quarter of 2018 by retrospective application. The adoption of this Update did not have a material effect on our Consolidated Financial Statements.

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Standard	Description	Required Date of Adoption	Financial Statements Impact
Credit Losses
ASU 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments	This Update replaces the current incurred loss impairment methodology with a methodology that reflects current expected credit losses (commonly referred to as CECL) for most financial assets measured at amortized cost and certain other instruments, including loans, HTM debt securities, net investments in leases and off-balance sheet credit exposures. CECL requires loss estimates for the remaining life of the financial asset at the time the asset is originated or acquired, considering historical experience, current conditions and reasonable and supportable forecasts. In addition, the Update will require the use of a modified AFS debt security impairment model and eliminate the current accounting for purchased credit impaired loans and debt securities.	January 1, 2020 Early adoption is permitted for fiscal years beginning after December 15, 2018	This Update is to be applied using a cumulative-effect adjustment to retained earnings. The CECL model is a significant change from existing GAAP and may result in a material change to our accounting for financial instruments and regulatory capital. We have created a cross-functional steering committee to govern implementation as we continue to review and enhance our business processes, information systems and controls to support recognition and disclosures under this Update including designing and building the models that will be used to calculate the expected credit losses. The impact of this Update will be dependent on the portfolio composition, credit quality and forecasts of economic conditions at the time of adoption.
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)	This Update requires entities that sell prepaid stored-value products redeemable for goods, services or cash at third-party merchants to recognize breakage.	January 1, 2018	We adopted this Update in the first quarter of 2018. The adoption of this Update did not have a material effect on our Consolidated Financial Statements.
Leases
ASU 2016-02, Leases (Topic 842) ASU 2018-10, Codification Improvements to Topic 842, Leases ASU 2018-11, Leases (Topic 842), Targeted Improvements	These Updatesrequire lessees to put most leases on their Balance Sheets 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.	January 1, 2019 Early adoption is permitted.	These Updates are to be applied using a modified retrospective application including a number of optional practical expedients. We are in the process of classifying our existing lease portfolios, implementing a software solution, and assessing the potential impact to our Consolidated Financial Statements. We do not believe this update will materially impact our consolidated net income.

13

Standard	Description	Required Date of Adoption	Financial Statements Impact
Financial Instruments – Recognition and Measurement
ASU 2016-01, Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities	This Update amends the presentation and accounting for certain financial instruments, including liabilities measured at fair value under the FVO, and equity investments. The guidance also updates fair value presentation and disclosure requirements for financial instruments measured at amortized cost.	January 1, 2018	We adopted this Update in the first quarter of 2018 by a cumulative-effect adjustment. The adoption of this Update did not have a material effect on our Consolidated Financial Statements. During the first quarter of 2018, we transferred marketable equity securities totaling $1.1 million from securities AFS to other assets.
Revenue Recognition
ASU 2014-09, Revenue from Contracts with Customers (Topic 606)	This Update 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.	January 1, 2018	We adopted this Update in the first quarter of 2018 under the modified retrospective method. The adoption of this Update did not have a material effect on our Consolidated Financial Statements.

NOTE 3.    MERGERS AND ACQUISITIONS

Yadkin Financial Corporation

On March 11, 2017, we completed our acquisition of YDKN, a bank holding company based in Raleigh, North Carolina. YDKN’s banking affiliate, Yadkin Bank, was merged into FNBPA on March 11, 2017. YDKN’s results of operations have been included in our Consolidated Statements of Income since that date. The acquisition enabled us to enter several North Carolina markets, including Raleigh, Charlotte and the Piedmont Triad, which is comprised of Winston-Salem, Greensboro and High Point. We also completed the core systems conversion activities during the first quarter of 2017.

On the acquisition date, the fair values of YDKN included $6.8 billion in assets, of which there was $5.1 billion in loans, and $5.2 billion in deposits. The acquisition was valued at $1.8 billion based on the acquisition date FNB common stock closing price of $15.97 and resulted in FNB issuing 111,619,622 shares of our common stock in exchange for 51,677,565 shares of YDKN common stock. Under the terms of the merger agreement, shareholders of YDKN received 2.16 shares of FNB common stock for each share of YDKN common stock and cash in lieu of fractional shares. YDKN’s fully vested and outstanding stock options were converted into options to purchase and receive FNB common stock. In conjunction with the acquisition, we assumed a warrant that was issued by YDKN to the UST under the Capital Purchase Program. Based on the exchange ratio, this warrant, which expires in 2019, was converted into a warrant to purchase up to 207,320 shares of FNB common stock with an exercise price of $9.63.

The acquisition of YDKN constituted a business combination and has been accounted for using the acquisition method of accounting, and accordingly, assets acquired, liabilities assumed and consideration exchanged were recorded at estimated fair value on the acquisition date. The determination of estimated fair values required management to make certain estimates about discount rates, future expected cash flows, market conditions, and other future events that are highly subjective in nature and may require adjustments, which can be updated for up to a year following the acquisition. Any adjustments to fair values and related adjustments to goodwill were recorded within the 12-month period.

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NOTE 4.    SECURITIES

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

TABLE 4.1

(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair  Value
Securities Available for Sale:
September 30, 2018
U.S. government agencies	$	163,752	$	36	$	(788	)	$	163,000
U.S. government-sponsored entities	362,967		—		(6,700		)	356,267
Residential mortgage-backed securities:
Agency mortgage-backed securities	1,540,049		356		(56,585		)	1,483,820
Agency collateralized mortgage obligations	1,083,989		—		(37,508		)	1,046,481
Commercial mortgage-backed securities	228,957		—		(2,182		)	226,775
States of the U.S. and political subdivisions	20,782		—		(101		)	20,681
Other debt securities	1,950		—		(80		)	1,870
Total debt securities available for sale	$	3,402,446	$	392	$	(103,944	)	$	3,298,894
December 31, 2017
U.S. government-sponsored entities	$	347,767	$	52	$	(3,877	)	$	343,942
Residential mortgage-backed securities:
Agency mortgage-backed securities	1,615,168		1,225		(17,519		)	1,598,874
Agency collateralized mortgage obligations	813,034		—		(18,077		)	794,957
Non-agency collateralized mortgage obligations	1		—		—			1
States of the U.S. and political subdivisions	21,151		6		(64		)	21,093
Other debt securities	4,913		—		(243		)	4,670
Total debt securities	2,802,034		1,283		(39,780		)	2,763,537
Equity securities	587		438		—			1,025
Total securities available for sale	$	2,802,621	$	1,721	$	(39,780	)	$	2,764,562

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(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair  Value
Debt Securities Held to Maturity:
September 30, 2018
U.S. Treasury	$	500	$	95	$	—		$	595
U.S. government agencies	1,987		58		—			2,045
U.S. government-sponsored entities	230,011		—		(6,170		)	223,841
Residential mortgage-backed securities:
Agency mortgage-backed securities	1,078,270		225		(40,969		)	1,037,526
Agency collateralized mortgage obligations	797,940		219		(37,797		)	760,362
Commercial mortgage-backed securities	76,818		1		(1,864		)	74,955
States of the U.S. and political subdivisions	1,020,819		—		(87,196		)	933,623
Total debt securities held to maturity	$	3,206,345	$	598	$	(173,996	)	$	3,032,947
December 31, 2017
U.S. Treasury	$	500	$	134	$	—		$	634
U.S. government-sponsored entities	247,310		93		(4,388		)	243,015
Residential mortgage-backed securities:
Agency mortgage-backed securities	1,219,802		3,475		(9,058		)	1,214,219
Agency collateralized mortgage obligations	777,146		32		(20,095		)	757,083
Commercial mortgage-backed securities	80,786		414		(575		)	80,625
States of the U.S. and political subdivisions	916,724		13,209		(7,130		)	922,803
Total debt securities held to maturity	$	3,242,268	$	17,357	$	(41,246	)	$	3,218,379

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

TABLE 4.2

	Three Months Ended September 30,					Nine Months Ended September 30,
(in thousands)	2018		2017			2018		2017
Gross gains	$	—	$	2,834		$	31	$	6,845
Gross losses	—		(57		)	—		(950		)
Net gains	$	—	$	2,777		$	31	$	5,895

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As of September 30, 2018, the amortized cost and fair value of debt securities, by contractual maturities, were as follows:

TABLE 4.3

	Available for Sale				Held to Maturity
(in thousands)	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Due in one year or less	$	121,270	$	120,729	$	40,450	$	40,308
Due from one to five years	258,824		252,577		202,164		195,882
Due from five to ten years	57,811		57,603		109,606		105,281
Due after ten years	111,546		110,909		901,097		818,633
	549,451		541,818		1,253,317		1,160,104
Residential mortgage-backed securities:
Agency mortgage-backed securities	1,540,049		1,483,820		1,078,270		1,037,526
Agency collateralized mortgage obligations	1,083,989		1,046,481		797,940		760,362
Commercial mortgage-backed securities	228,957		226,775		76,818		74,955
Total debt securities	$	3,402,446	$	3,298,894	$	3,206,345	$	3,032,947

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 residential mortgage-backed securities based on the payment patterns of the underlying collateral.

Following is information relating to securities pledged:

TABLE 4.4

(dollars in thousands)	September 30, 2018			December 31, 2017
Securities pledged (carrying value):
To secure public deposits, trust deposits and for other purposes as required by law	$	3,912,575		$	3,491,634
As collateral for short-term borrowings	282,682			263,756
Securities pledged as a percent of total securities	64.5		%	62.5		%

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Following are summaries of the fair values and unrealized losses of temporarily impaired debt securities, segregated by length of impairment. The unrealized losses reported below are generally due to the higher interest rate environment.

TABLE 4.5

	Less than 12 Months						12 Months or More						Total
(dollars in thousands)	#	Fair  Value		Unrealized Losses			#	Fair  Value		Unrealized Losses			#	Fair  Value		Unrealized Losses
Debt Securities Available for Sale
September 30, 2018
U.S. government agencies	18	$	137,530	$	(788	)	—	$	—	$	—		18	$	137,530	$	(788	)
U.S. government-sponsored entities	6	136,678		(1,292		)	11	219,589		(5,408		)	17	356,267		(6,700		)
Residential mortgage-backed securities:
Agency mortgage-backed securities	40	666,851		(20,289		)	48	807,826		(36,296		)	88	1,474,677		(56,585		)
Agency collateralized mortgage obligations	17	568,169		(11,501		)	39	448,336		(26,007		)	56	1,016,505		(37,508		)
Commercial mortgage-backed securities	6	226,775		(2,182		)	—	—		—			6	226,775		(2,182		)
States of the U.S. and political subdivisions	7	11,672		(80		)	2	2,028		(21		)	9	13,700		(101		)
Other debt securities	—	—		—			1	1,870		(80		)	1	1,870		(80		)
Total temporarily impaired debt securities AFS	94	$	1,747,675	$	(36,132	)	101	$	1,479,649	$	(67,812	)	195	$	3,227,324	$	(103,944	)
December 31, 2017
U.S. government-sponsored entities	7	$	106,809	$	(363	)	10	$	201,485	$	(3,514	)	17	$	308,294	$	(3,877	)
Residential mortgage-backed securities:
Agency mortgage-backed securities	43	976,738		(7,723		)	28	473,625		(9,796		)	71	1,450,363		(17,519		)
Agency collateralized mortgage obligations	14	409,005		(6,231		)	33	335,452		(11,846		)	47	744,457		(18,077		)
States of the U.S. and political subdivisions	7	11,254		(55		)	1	879		(9		)	8	12,133		(64		)
Other debt securities	—	—		—			3	4,670		(243		)	3	4,670		(243		)
Total temporarily impaired debt securities AFS	71	$	1,503,806	$	(14,372	)	75	$	1,016,111	$	(25,408	)	146	$	2,519,917	$	(39,780	)

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	Less than 12 Months						12 Months or More						Total
(dollars in thousands)	#	Fair  Value		Unrealized Losses			#	Fair  Value		Unrealized Losses			#	Fair  Value		Unrealized Losses
Debt Securities Held to Maturity
September 30, 2018
U.S. government-sponsored entities	3	$	39,696	$	(315	)	10	$	184,145	$	(5,855	)	13	$	223,841	$	(6,170	)
Residential mortgage-backed securities:
Agency mortgage-backed securities	66	609,169		(20,754		)	29	417,024		(20,215		)	95	1,026,193		(40,969		)
Agency collateralized mortgage obligations	15	307,031		(9,673		)	38	416,467		(28,124		)	53	723,498		(37,797		)
Commercial mortgage-backed securities	7	52,471		(1,184		)	4	21,371		(680		)	11	73,842		(1,864		)
States of the U.S. and political subdivisions	278	810,893		(60,672		)	42	122,730		(26,524		)	320	933,623		(87,196		)
Total temporarily impaired debt securities HTM	369	$	1,819,260	$	(92,598	)	123	$	1,161,737	$	(81,398	)	492	$	2,980,997	$	(173,996	)
December 31, 2017
U.S. government-sponsored entities	4	$	54,790	$	(239	)	10	$	185,851	$	(4,149	)	14	$	240,641	$	(4,388	)
Residential mortgage-backed securities:
Agency mortgage-backed securities	36	648,485		(4,855		)	11	183,989		(4,203		)	47	832,474		(9,058		)
Agency collateralized mortgage obligations	14	275,290		(1,701		)	35	473,257		(18,394		)	49	748,547		(20,095		)
Commercial mortgage-backed securities	3	26,399		(123		)	2	19,443		(452		)	5	45,842		(575		)
States of the U.S. and political subdivisions	16	56,739		(933		)	37	121,536		(6,197		)	53	178,275		(7,130		)
Total temporarily impaired debt securities HTM	73	$	1,061,703	$	(7,851	)	95	$	984,076	$	(33,395	)	168	$	2,045,779	$	(41,246	)

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

Other-Than-Temporary Impairment

We evaluate our investment securities portfolio for OTTI on a quarterly basis. Impairment is assessed at the individual security level. We consider an investment security impaired if the fair value of the security is less than its cost or amortized cost basis. We did not recognize any OTTI losses on securities for the nine months ended September 30, 2018 or 2017.

States of the U.S. and Political Subdivisions

Our municipal bond portfolio with a carrying amount of $1.0 billion as of September 30, 2018 is highly rated with an average entity-specific rating of AA and 100% of the portfolio rated A or better, while 99% have stand-alone ratings of A or better. All of the securities in the municipal portfolio except one are general obligation bonds. Geographically, municipal bonds support our primary footprint as 65% of the securities are from municipalities located throughout Pennsylvania, Ohio, Maryland, North Carolina and South Carolina. The average holding size of the securities in the municipal bond portfolio is $3.1 million. In addition to the strong stand-alone ratings, 64% of the municipalities have some formal credit enhancement insurance that strengthens the creditworthiness of their issue. Management reviews the credit profile of each issuer on a quarterly basis.

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NOTE 5.    LOANS AND LEASES

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

TABLE 5.1

(in thousands)	Originated Loans and Leases		Acquired Loans		Total Loans and Leases
September 30, 2018
Commercial real estate	$	5,978,629	$	2,867,111	$	8,845,740
Commercial and industrial	3,892,822		470,635		4,363,457
Commercial leases	346,579		—		346,579
Other	34,732		—		34,732
Total commercial loans and leases	10,252,762		3,337,746		13,590,508
Direct installment	1,670,964		107,159		1,778,123
Residential mortgages	2,457,380		527,282		2,984,662
Indirect installment	1,880,487		162		1,880,649
Consumer lines of credit	1,116,376		489,085		1,605,461
Total consumer loans	7,125,207		1,123,688		8,248,895
Total loans and leases, net of unearned income	$	17,377,969	$	4,461,434	$	21,839,403
December 31, 2017
Commercial real estate	$	5,174,783	$	3,567,081	$	8,741,864
Commercial and industrial	3,495,247		675,420		4,170,667
Commercial leases	266,720		—		266,720
Other	17,063		—		17,063
Total commercial loans and leases	8,953,813		4,242,501		13,196,314
Direct installment	1,755,713		149,822		1,905,535
Residential mortgages	2,036,226		666,465		2,702,691
Indirect installment	1,448,268		165		1,448,433
Consumer lines of credit	1,151,470		594,323		1,745,793
Total consumer loans	6,391,677		1,410,775		7,802,452
Total loans and leases, net of unearned income	$	15,345,490	$	5,653,276	$	20,998,766

The loans and leases portfolio categories are comprised of the following:

• 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 consist of leases for new or used equipment;

• Other is comprised primarily of credit cards and mezzanine loans;

• 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 1-4 family properties;

• Indirect installment is comprised of loans originated by approved third parties and underwritten by us, primarily automobile loans; and

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• Consumer lines of credit include home equity lines of credit and consumer lines of credit that are either unsecured or secured by collateral other than home equity.

The loans and leases portfolio consists principally of loans to individuals and small- and medium-sized businesses within our primary market areas of Pennsylvania, eastern Ohio, Maryland, North Carolina, South Carolina and northern West Virginia.

The following table shows certain information relating to commercial real estate loans:

TABLE 5.2

(dollars in thousands)	September 30, 2018			December 31, 2017
Commercial construction, acquisition and development loans	$	1,146,612		$	1,170,175
Percent of total loans and leases	5.3		%	5.6		%
Commercial real estate:
Percent owner-occupied	34.7		%	35.3		%
Percent non-owner-occupied	65.3		%	64.7		%

Acquired Loans

All acquired loans were initially recorded at fair value at the acquisition date. Refer to the Acquired Loans section in Note 1 of our 2017 Annual Report on Form 10-K for a discussion of ASC 310-20 and ASC 310-30 loans. The outstanding balance and the carrying amount of acquired loans included in the Consolidated Balance Sheets are as follows:

TABLE 5.3

(in thousands)	September 30, 2018		December 31, 2017
Accounted for under ASC 310-30:
Outstanding balance	$	4,110,019	$	5,176,015
Carrying amount	3,830,823		4,834,256
Accounted for under ASC 310-20:
Outstanding balance	644,077		835,130
Carrying amount	626,041		812,322
Total acquired loans:
Outstanding balance	4,754,096		6,011,145
Carrying amount	4,456,864		5,646,578

The outstanding balance is the undiscounted sum of all amounts owed under the loan, including amounts deemed principal, interest, fees, penalties and other, whether or not currently due and whether or not any such amounts have been written or charged-off.

The carrying amount of purchased credit impaired loans included in the table above totaled $1.7 million at September 30, 2018 and $1.9 million at December 31, 2017, representing 0.04% and 0.03%, respectively, of the carrying amount of total acquired loans as of each date.

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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.

TABLE 5.4

	Nine Months Ended September 30,
(in thousands)	2018			2017
Balance at beginning of period	$	708,481		$	467,070
Acquisitions	—			444,715
Reduction due to unexpected early payoffs	(117,469		)	(90,097		)
Reclass from non-accretable difference	184,545			163,714
Disposals/transfers	(444		)	(341		)
Other	(412		)	1,129
Accretion	(169,605		)	(164,219		)
Balance at end of period	$	605,096		$	821,971

Cash flows expected to be collected on acquired loans are estimated quarterly by incorporating several key assumptions similar to the initial estimate of fair value. These key assumptions include probability of default and the amount of actual prepayments after the acquisition date. Prepayments affect the estimated life of the loans and could change the amount of interest income, and possibly principal expected to be collected. In reforecasting future estimated cash flows, credit loss expectations are adjusted as necessary. Improved cash flow expectations for loans or pools are recorded first as a reversal of previously recorded impairment, if any, and then as an increase in prospective yield when all previously recorded impairment has been recaptured. Decreases in expected cash flows are recognized as impairment through a charge to the provision for credit losses and credit to the allowance for credit losses.

The excess of cash flows expected to be collected at acquisition over recorded fair value is referred to as the accretable yield.

The accretable yield is recognized into income over the remaining life of the loan, or pool of loans, using an effective yield

method, if the timing and/or amount of cash flows expected to be collected can be reasonably estimated (the accretion model).

If the timing and/or amount of cash flows expected to be collected cannot be reasonably estimated, the cost recovery method of

income recognition must be used. The difference between the loan’s total scheduled principal and interest payments over all

cash flows expected at acquisition is referred to as the non-accretable difference. The non-accretable difference represents

contractually required principal and interest payments which we do not expect to collect.

During the nine months ended September 30, 2018, there was an overall improvement in cash flow expectations which resulted in a net reclassification of $184.5 million from the non-accretable difference to accretable yield. This reclassification was $163.7 million for the nine months ended September 30, 2017. The reclassification from the non-accretable difference to the accretable yield results in prospective yield adjustments on the loan pools and was also positively impacted by the sale of $56.5 million of acquired residential mortgage loans in the second quarter of 2018.

Credit Quality

Management monitors the credit quality of our loan portfolio using several performance measures to do so based on payment activity and borrower performance.

Non-performing loans include non-accrual loans and non-performing TDRs. Past due loans are reviewed on a monthly basis to identify loans for non-accrual status. We place originated loans on non-accrual status and discontinue 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 full amount of principal and interest is due and has remained unpaid for a certain number of days, unless the loan is both well secured and in the process of collection. Commercial loans and leases 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, though we may place a loan on non-accrual prior to these past due thresholds as warranted. When a loan is placed on non-accrual status, all unpaid accrued 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. The majority of TDRs are loans in which we have granted a concession on the interest rate or the original repayment terms due to the borrower’s financial distress.

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Following is a summary of non-performing assets:

TABLE 5.5

(dollars in thousands)	September 30, 2018			December 31, 2017
Non-accrual loans	$	79,899		$	74,635
Troubled debt restructurings	22,322			23,481
Total non-performing loans	102,221			98,116
Other real estate owned	35,685			40,606
Total non-performing assets	$	137,906		$	138,722
Asset quality ratios:
Non-performing loans / total loans and leases	0.47		%	0.47		%
Non-performing loans + OREO / total loans and leases + OREO	0.63		%	0.66		%
Non-performing assets / total assets	0.42		%	0.44		%

The carrying value of residential other real estate owned held as a result of obtaining physical possession upon completion of a foreclosure or through completion of a deed in lieu of foreclosure amounted to $5.4 million at September 30, 2018 and $3.6 million at December 31, 2017. The recorded investment of consumer mortgage loans secured by residential real estate properties for which formal foreclosure proceedings are in process at September 30, 2018 and December 31, 2017 totaled $9.0 million and $15.2 million, respectively.

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The following tables provide an analysis of the aging of loans by class segregated by loans and leases originated and loans acquired:

TABLE 5.6

(in thousands)	30-89 Days Past Due		>90 Days Past Due and Still Accruing		Non- Accrual		Total Past Due (4)		Current		Total Loans and Leases
Originated Loans and Leases
September 30, 2018
Commercial real estate	$	12,978	$	2	$	18,243	$	31,223	$	5,947,406	$	5,978,629
Commercial and industrial	7,069		3		27,323		34,395		3,858,427		3,892,822
Commercial leases	712		—		5,526		6,238		340,341		346,579
Other	80		141		1,000		1,221		33,511		34,732
Total commercial loans and leases	20,839		146		52,092		73,077		10,179,685		10,252,762
Direct installment	7,779		663		7,888		16,330		1,654,634		1,670,964
Residential mortgages	19,274		1,754		6,110		27,138		2,430,242		2,457,380
Indirect installment	8,889		505		2,263		11,657		1,868,830		1,880,487
Consumer lines of credit	5,039		904		3,583		9,526		1,106,850		1,116,376
Total consumer loans	40,981		3,826		19,844		64,651		7,060,556		7,125,207
Total originated loans and leases	$	61,820	$	3,972	$	71,936	$	137,728	$	17,240,241	$	17,377,969
December 31, 2017
Commercial real estate	$	8,273	$	1	$	24,773	$	33,047	$	5,141,736	$	5,174,783
Commercial and industrial	8,948		3		17,077		26,028		3,469,219		3,495,247
Commercial leases	1,382		41		1,574		2,997		263,723		266,720
Other	83		153		1,000		1,236		15,827		17,063
Total commercial loans and leases	18,686		198		44,424		63,308		8,890,505		8,953,813
Direct installment	13,192		4,466		8,896		26,554		1,729,159		1,755,713
Residential mortgages	14,096		2,832		5,771		22,699		2,013,527		2,036,226
Indirect installment	10,313		611		2,240		13,164		1,435,104		1,448,268
Consumer lines of credit	5,859		1,014		2,313		9,186		1,142,284		1,151,470
Total consumer loans	43,460		8,923		19,220		71,603		6,320,074		6,391,677
Total originated loans and leases	$	62,146	$	9,121	$	63,644	$	134,911	$	15,210,579	$	15,345,490

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(in thousands)	30-89 Days Past Due		>90 Days Past Due and Still Accruing		Non- Accrual		Total Past Due (1) (2) (3)		Current		(Discount) Premium			Total Loans
Acquired Loans
September 30, 2018
Commercial real estate	$	33,024	$	48,044	$	3,030	$	84,098	$	2,956,931	$	(173,918	)	$	2,867,111
Commercial and industrial	1,704		2,801		4,252		8,757		492,430		(30,552		)	470,635
Total commercial loans	34,728		50,845		7,282		92,855		3,449,361		(204,470		)	3,337,746
Direct installment	4,168		1,798		—		5,966		101,669		(476		)	107,159
Residential mortgages	15,237		6,428		—		21,665		522,844		(17,227		)	527,282
Indirect installment	—		1		—		1		—		161			162
Consumer lines of credit	6,699		2,244		681		9,624		490,358		(10,897		)	489,085
Total consumer loans	26,104		10,471		681		37,256		1,114,871		(28,439		)	1,123,688
Total acquired loans	$	60,832	$	61,316	$	7,963	$	130,111	$	4,564,232	$	(232,909	)	$	4,461,434
December 31, 2017
Commercial real estate	$	34,928	$	63,092	$	3,975	$	101,995	$	3,657,152	$	(192,066	)	$	3,567,081
Commercial and industrial	3,187		6,452		5,663		15,302		698,265		(38,147		)	675,420
Total commercial loans	38,115		69,544		9,638		117,297		4,355,417		(230,213		)	4,242,501
Direct installment	5,267		2,013		—		7,280		141,386		1,156			149,822
Residential mortgages	17,191		15,139		—		32,330		675,499		(41,364		)	666,465
Indirect installment	—		1		—		1		10		154			165
Consumer lines of credit	6,353		3,253		1,353		10,959		596,298		(12,934		)	594,323
Total consumer loans	28,811		20,406		1,353		50,570		1,413,193		(52,988		)	1,410,775
Total acquired loans	$	66,926	$	89,950	$	10,991	$	167,867	$	5,768,610	$	(283,201	)	$	5,653,276

(1) Past due information for acquired loans is based on the contractual balance outstanding at September 30, 2018 and December 31, 2017.

(2) Acquired loans are considered performing upon acquisition, regardless of whether the customer is contractually delinquent, if we can reasonably estimate the timing and amount of expected cash flows on such loans. In these instances, we do not consider acquired contractually delinquent loans to be non-accrual or non-performing and continue 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, we determine we are no longer able to reasonably estimate the timing and amount of expected cash flows on such loans. We do not recognize interest income on acquired loans considered non-accrual or non-performing.

(3) Approximately $28.5 million of acquired past-due or non-accrual loans were sold during the second quarter of 2018.

(4) Approximately $14.7 million of originated past-due or non-accrual loans were sold during the second quarter of 2018.

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We utilize the following categories to monitor credit quality within our commercial loan and lease portfolio:

TABLE 5.7

Rating Category	Definition
Pass	in general, the condition of the borrower and the performance of the loan 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 of the borrower has significantly deteriorated and the performance of the loan 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. Our 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 our 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.

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

TABLE 5.8

	Commercial Loan and Lease Credit Quality Categories
(in thousands)	Pass		Special Mention		Substandard		Doubtful		Total
Originated Loans and Leases
September 30, 2018
Commercial real estate	$	5,716,992	$	144,800	$	116,793	$	44	$	5,978,629
Commercial and industrial	3,626,199		187,032		74,879		4,712		3,892,822
Commercial leases	335,439		1,623		9,517		—		346,579
Other	33,481		110		1,141		—		34,732
Total originated commercial loans and leases	$	9,712,111	$	333,565	$	202,330	$	4,756	$	10,252,762
December 31, 2017
Commercial real estate	$	4,922,872	$	152,744	$	98,728	$	439	$	5,174,783
Commercial and industrial	3,266,966		132,975		92,091		3,215		3,495,247
Commercial leases	260,235		4,425		2,060		—		266,720
Other	15,866		43		1,154		—		17,063
Total originated commercial loans and leases	$	8,465,939	$	290,187	$	194,033	$	3,654	$	8,953,813
Acquired Loans
September 30, 2018
Commercial real estate	$	2,481,679	$	181,813	$	203,448	$	171	$	2,867,111
Commercial and industrial	408,326		20,605		41,704		—		470,635
Total acquired commercial loans	$	2,890,005	$	202,418	$	245,152	$	171	$	3,337,746
December 31, 2017
Commercial real estate	$	3,102,788	$	250,987	$	213,089	$	217	$	3,567,081
Commercial and industrial	603,611		26,059		45,661		89		675,420
Total acquired commercial loans	$	3,706,399	$	277,046	$	258,750	$	306	$	4,242,501

Credit quality information for acquired loans is based on the contractual balance outstanding at September 30, 2018 and December 31, 2017.

We use 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, Fair Isaac Corporation (FICO) scores and other external factors such as unemployment, to determine how consumer loans are performing.

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Following is a table showing consumer loans by payment status:

TABLE 5.9

	Consumer Loan Credit Quality by Payment Status
(in thousands)	Performing		Non- Performing		Total
Originated loans
September 30, 2018
Direct installment	$	1,656,375	$	14,589	$	1,670,964
Residential mortgages	2,441,374		16,006		2,457,380
Indirect installment	1,878,224		2,263		1,880,487
Consumer lines of credit	1,111,004		5,372		1,116,376
Total originated consumer loans	$	7,086,977	$	38,230	$	7,125,207
December 31, 2017
Direct installment	$	1,739,060	$	16,653	$	1,755,713
Residential mortgages	2,019,816		16,410		2,036,226
Indirect installment	1,445,833		2,435		1,448,268
Consumer lines of credit	1,147,576		3,894		1,151,470
Total originated consumer loans	$	6,352,285	$	39,392	$	6,391,677
Acquired loans
September 30, 2018
Direct installment	$	107,091	$	68	$	107,159
Residential mortgages	527,282		—		527,282
Indirect installment	162		—		162
Consumer lines of credit	487,823		1,262		489,085
Total acquired consumer loans	$	1,122,358	$	1,330	$	1,123,688
December 31, 2017
Direct installment	$	149,751	$	71	$	149,822
Residential mortgages	666,465		—		666,465
Indirect installment	165		—		165
Consumer lines of credit	592,384		1,939		594,323
Total acquired consumer loans	$	1,408,765	$	2,010	$	1,410,775

Loans 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, we do not consider loans 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.). Effective July 1, 2018, we changed our threshold for measuring impairment on a collective basis.  Impairment is evaluated in the aggregate for newly impaired commercial loan relationships less than $1.0 million based on loan segment loss given default. Impairment is evaluated in the aggregate for consumer installment loans, residential mortgages, consumer lines of credit and commercial loan relationships less than $1.0 million based on loan segment loss given default. For commercial loan relationships greater than or equal to $1.0 million, 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 our existing method of income recognition for loans, interest income on impaired loans, except those classified as non-accrual, is recognized using the accrual method. Impaired loans, or portions thereof, are charged off when deemed uncollectible.

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

TABLE 5.10

(in thousands)	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 Nine Months Ended September 30, 2018
Commercial real estate	$	20,051	$	17,576	$	635	$	18,211	$	44	$	16,360
Commercial and industrial	31,219		19,533		8,272		27,805		4,712		27,096
Commercial leases	5,526		5,526		—		5,526		—		3,372
Total commercial loans and leases	56,796		42,635		8,907		51,542		4,756		46,828
Direct installment	17,554		14,589		—		14,589		—		15,191
Residential mortgages	17,316		16,006		—		16,006		—		16,887
Indirect installment	4,576		2,263		—		2,263		—		2,208
Consumer lines of credit	7,330		5,372		—		5,372		—		5,172
Total consumer loans	46,776		38,230		—		38,230		—		39,458
Total	$	103,572	$	80,865	$	8,907	$	89,772	$	4,756	$	86,286
At or for the Year Ended December 31, 2017
Commercial real estate	$	27,718	$	21,748	$	2,906	$	24,654	$	439	$	24,413
Commercial and industrial	29,307		11,595		4,457		16,052		3,215		23,907
Commercial leases	1,574		1,574		—		1,574		—		1,386
Total commercial loans and leases	58,599		34,917		7,363		42,280		3,654		49,706
Direct installment	19,375		16,653		—		16,653		—		16,852
Residential mortgages	17,754		16,410		—		16,410		—		15,984
Indirect installment	5,709		2,435		—		2,435		—		2,279
Consumer lines of credit	5,039		3,894		—		3,894		—		3,815
Total consumer loans	47,877		39,392		—		39,392		—		38,930
Total	$	106,476	$	74,309	$	7,363	$	81,672	$	3,654	$	88,636

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Interest income continued to accrue on certain impaired loans and totaled approximately $4.3 million and $3.3 million for the nine months ended September 30, 2018 and 2017, respectively. The above tables do not reflect the additional allowance for credit losses relating to acquired loans. Following is a summary of the allowance for credit losses required for acquired loans due to changes in credit quality subsequent to the acquisition date:

TABLE 5.11

(in thousands)	September 30, 2018			December 31, 2017
Commercial real estate	$	2,440		$	4,976
Commercial and industrial	639			(415		)
Total commercial loans	3,079			4,561
Direct installment	967			1,553
Residential mortgages	520			484
Indirect installment	226			177
Consumer lines of credit	(222		)	(77		)
Total consumer loans	1,491			2,137
Total allowance on acquired loans	$	4,570		$	6,698

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 composition of total TDRs:

TABLE 5.12

(in thousands)	Originated		Acquired		Total
September 30, 2018
Accruing:
Performing	$	16,963	$	67	$	17,030
Non-performing	19,060		3,262		22,322
Non-accrual	8,621		91		8,712
Total TDRs	$	44,644	$	3,420	$	48,064
December 31, 2017
Accruing:
Performing	$	19,538	$	266	$	19,804
Non-performing	20,173		3,308		23,481
Non-accrual	10,472		234		10,706
Total TDRs	$	50,183	$	3,808	$	53,991

TDRs that are accruing and performing include loans that met the criteria for non-accrual of interest prior to restructuring for which we can reasonably estimate the timing and amount of the expected cash flows on such loans and for which we expect to fully collect the new carrying value of the loans. During the nine months ended September 30, 2018, we returned to performing status $3.0 million 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 we will collect all future principal and interest payments. TDRs that are on non-accrual are not placed on accruing status until all delinquent

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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 $1.0 million 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. Our allowance for credit losses included specific reserves for commercial TDRs and pooled reserves for individually impaired loans under $1.0 million 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. The reserve for commercial TDRs included in the allowance for credit losses is presented in the following table:

TABLE 5.13

(in thousands)	September 30, 2018		December 31, 2017
Specific reserves for commercial TDRs	$	—	$	95
Pooled reserves for individual commercial loans	551		469

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. Our allowance for credit losses included pooled reserves for these classes of loans of $4.0 million for September 30, 2018 and $4.0 million for December 31, 2017. Upon default of an individual loan, our charge-off policy is followed accordingly for that class of loan.

Following is a summary of TDR loans, by class:

TABLE 5.14

	Three Months Ended September 30, 2018					Nine Months Ended September 30, 2018
(dollars in thousands)	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	3	$	507	$	494	4	$	656	$	614
Commercial and industrial	1	15		—		12	662		633
Total commercial loans	4	522		494		16	1,318		1,247
Direct installment	15	650		638		65	3,215		2,941
Residential mortgages	4	283		279		13	898		854
Indirect installment	—	—		—		—	—		—
Consumer lines of credit	11	540		549		25	1,199		1,004
Total consumer loans	30	1,473		1,466		103	5,312		4,799
Total	34	$	1,995	$	1,960	119	$	6,630	$	6,046

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	Three Months Ended September 30, 2017					Nine Months Ended September 30, 2017
(dollars in thousands)	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	—	$	—	$	—	2	$	595	$	560
Commercial and industrial	1	15		10		3	3,568		4,169
Total commercial loans	1	15		10		5	4,163		4,729
Direct installment	141	1,037		919		474	4,014		3,580
Residential mortgages	14	946		952		30	1,539		1,446
Indirect installment	3	5		4		12	36		32
Consumer lines of credit	9	77		50		51	1,080		901
Total consumer loans	167	2,065		1,925		567	6,669		5,959
Total	168	$	2,080	$	1,935	572	$	10,832	$	10,688

The year-to-date items in the above tables have been adjusted for loans that have been paid off and/or sold.

Following is a summary of originated TDRs, by class, 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.

TABLE 5.15

	Three Months Ended September 30, 2018			Nine Months Ended September 30, 2018
(dollars in thousands)	Number of Contracts	Recorded Investment		Number of Contracts	Recorded Investment
Commercial real estate	3	$	1,078	3	$	1,078
Commercial and industrial	2	16		1	9
Total commercial loans	5	1,094		4	1,087
Direct installment	3	$	274	5	$	332
Residential mortgages	2	108		4	224
Indirect installment	—	—		—	—
Consumer lines of credit	—	—		3	252
Total consumer loans	5	382		12	808
Total	10	$	1,476	16	$	1,895

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	Three Months Ended September 30, 2017			Nine Months Ended September 30, 2017
(dollars in thousands)	Number of Contracts	Recorded Investment		Number of Contracts	Recorded Investment
Commercial real estate	1	$	463	1	$	463
Commercial and industrial	—	—		3	326
Total commercial loans	1	463		4	789
Direct installment	39	265		91	278
Residential mortgages	1	80		4	264
Indirect installment	4	22		12	22
Consumer lines of credit	3	26		4	89
Total consumer loans	47	393		111	653
Total	48	$	856	115	$	1,442

The year-to-date items in the above tables have been adjusted for loans that have been paid off and/or sold.

NOTE 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 Sheets. 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 appropriate level of the allowance for credit losses. Following is a summary of changes in the allowance for credit losses, by loan and lease class:

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TABLE 6.1

(in thousands)	Balance at Beginning of Period		Charge- Offs			Recoveries		Net Charge- Offs			Provision for Credit Losses			Balance at End of Period
Three Months Ended September 30, 2018
Commercial real estate	$	50,587	$	(727	)	$	567	$	(160	)	$	4,256		$	54,683
Commercial and industrial	53,689		(2,432		)	373		(2,059		)	906			52,536
Commercial leases	7,039		(51		)	2		(49		)	510			7,500
Other	1,996		(918		)	274		(644		)	726			2,078
Total commercial loans and leases	113,311		(4,128		)	1,216		(2,912		)	6,398			116,797
Direct installment	20,279		(9,436		)	276		(9,160		)	2,714			13,833
Residential mortgages	15,163		(77		)	7		(70		)	2,576			17,669
Indirect installment	13,401		(2,061		)	620		(1,441		)	2,493			14,453
Consumer lines of credit	10,461		(832		)	258		(574		)	672			10,559
Total consumer loans	59,304		(12,406		)	1,161		(11,245		)	8,455			56,514
Total allowance on originated loans and leases	172,615		(16,534		)	2,377		(14,157		)	14,853			173,311
Purchased credit-impaired loans	624		—			—		—			—			624
Other acquired loans	3,335		(713		)	202		(511		)	1,122			3,946
Total allowance on acquired loans	3,959		(713		)	202		(511		)	1,122			4,570
Total allowance for credit losses	$	176,574	$	(17,247	)	$	2,579	$	(14,668	)	$	15,975		$	177,881
Nine Months Ended September 30, 2018
Commercial real estate	$	50,281	$	(5,206	)	$	1,669	$	(3,537	)	$	7,939		$	54,683
Commercial and industrial	51,963		(14,479		)	1,899		(12,580		)	13,153			52,536
Commercial leases	5,646		(258		)	26		(232		)	2,086			7,500
Other	1,843		(3,293		)	843		(2,450		)	2,685			2,078
Total commercial loans and leases	109,733		(23,236		)	4,437		(18,799		)	25,863			116,797
Direct installment	20,936		(15,828		)	1,179		(14,649		)	7,546			13,833
Residential mortgages	15,507		(470		)	114		(356		)	2,518			17,669
Indirect installment	11,967		(6,688		)	2,489		(4,199		)	6,685			14,453
Consumer lines of credit	10,539		(2,468		)	441		(2,027		)	2,047			10,559
Total consumer loans	58,949		(25,454		)	4,223		(21,231		)	18,796			56,514
Total allowance on originated loans and leases	168,682		(48,690		)	8,660		(40,030		)	44,659			173,311
Purchased credit-impaired loans	635		—			—		—			(11		)	624
Other acquired loans	6,063		(5,098		)	1,605		(3,493		)	1,376			3,946
Total allowance on acquired loans	6,698		(5,098		)	1,605		(3,493		)	1,365			4,570
Total allowance for credit losses	$	175,380	$	(53,788	)	$	10,265	$	(43,523	)	$	46,024		$	177,881

34

(in thousands)	Balance at Beginning of Period		Charge- Offs			Recoveries		Net Charge- Offs			Provision for Credit Losses			Balance at End of Period
Three Months Ended September 30, 2017
Commercial real estate	$	46,958	$	(610	)	$	93	$	(517	)	$	1,682		$	48,123
Commercial and industrial	54,108		(6,592		)	298		(6,294		)	5,889			53,703
Commercial leases	4,122		(112		)	1		(111		)	818			4,829
Other	1,838		(1,386		)	298		(1,088		)	1,018			1,768
Total commercial loans and leases	107,026		(8,700		)	690		(8,010		)	9,407			108,423
Direct installment	20,736		(3,247		)	402		(2,845		)	2,786			20,677
Residential mortgages	11,252		(155		)	8		(147		)	1,630			12,735
Indirect installment	10,574		(2,468		)	861		(1,607		)	2,380			11,347
Consumer lines of credit	9,504		(522		)	98		(424		)	972			10,052
Total consumer loans	52,066		(6,392		)	1,369		(5,023		)	7,768			54,811
Total allowance on originated loans and leases	159,092		(15,092		)	2,059		(13,033		)	17,175			163,234
Purchased credit-impaired loans	640		(21		)	34		13			137			790
Other acquired loans	5,967		(222		)	791		569			(544		)	5,992
Total allowance on acquired loans	6,607		(243		)	825		582			(407		)	6,782
Total allowance for credit losses	$	165,699	$	(15,335	)	$	2,884	$	(12,451	)	$	16,768		$	170,016
Nine Months Ended September 30, 2017
Commercial real estate	$	46,635	$	(1,916	)	$	959	$	(957	)	$	2,445		$	48,123
Commercial and industrial	47,991		(16,791		)	955		(15,836		)	21,548			53,703
Commercial leases	3,280		(826		)	5		(821		)	2,370			4,829
Other	1,392		(3,180		)	978		(2,202		)	2,578			1,768
Total commercial loans and leases	99,298		(22,713		)	2,897		(19,816		)	28,941			108,423
Direct installment	21,391		(9,366		)	1,611		(7,755		)	7,041			20,677
Residential mortgages	10,082		(517		)	179		(338		)	2,991			12,735
Indirect installment	10,564		(6,804		)	2,256		(4,548		)	5,331			11,347
Consumer lines of credit	9,456		(1,563		)	413		(1,150		)	1,746			10,052
Total consumer loans	51,493		(18,250		)	4,459		(13,791		)	17,109			54,811
Total allowance on originated loans and leases	150,791		(40,963		)	7,356		(33,607		)	46,050			163,234
Purchased credit-impaired loans	572		(22		)	34		12			206			790
Other acquired loans	6,696		(778		)	1,956		1,178			(1,882		)	5,992
Total allowance on acquired loans	7,268		(800		)	1,990		1,190			(1,676		)	6,782
Total allowance for credit losses	$	158,059	$	(41,763	)	$	9,346	$	(32,417	)	$	44,374		$	170,016

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

TABLE 6.2

	Originated Allowance				Originated Loans and Leases Outstanding
(in thousands)	Individually Evaluated for Impairment		Collectively Evaluated for Impairment		Loans and Leases		Individually Evaluated for Impairment		Collectively Evaluated for Impairment
September 30, 2018
Commercial real estate	$	44	$	54,639	$	5,978,629	$	11,198	$	5,967,431
Commercial and industrial	4,712		47,824		3,892,822		21,690		3,871,132
Commercial leases	—		7,500		346,579		—		346,579
Other	—		2,078		34,732		—		34,732
Total commercial loans and leases	4,756		112,041		10,252,762		32,888		10,219,874
Direct installment	—		13,833		1,670,964		—		1,670,964
Residential mortgages	—		17,669		2,457,380		—		2,457,380
Indirect installment	—		14,453		1,880,487		—		1,880,487
Consumer lines of credit	—		10,559		1,116,376		—		1,116,376
Total consumer loans	—		56,514		7,125,207		—		7,125,207
Total	$	4,756	$	168,555	$	17,377,969	$	32,888	$	17,345,081
December 31, 2017
Commercial real estate	$	439	$	49,842	$	5,174,783	$	11,114	$	5,163,669
Commercial and industrial	3,215		48,748		3,495,247		9,872		3,485,375
Commercial leases	—		5,646		266,720		—		266,720
Other	—		1,843		17,063		—		17,063
Total commercial loans and leases	3,654		106,079		8,953,813		20,986		8,932,827
Direct installment	—		20,936		1,755,713		—		1,755,713
Residential mortgages	—		15,507		2,036,226		—		2,036,226
Indirect installment	—		11,967		1,448,268		—		1,448,268
Consumer lines of credit	—		10,539		1,151,470		—		1,151,470
Total consumer loans	—		58,949		6,391,677		—		6,391,677
Total	$	3,654	$	165,028	$	15,345,490	$	20,986	$	15,324,504

The above table excludes acquired loans that were pooled into groups of loans for evaluating impairment.

NOTE 7.    LOAN SERVICING

Mortgage Loan Servicing

We retain the servicing rights on certain mortgage loans sold. The unpaid principal balance of mortgage loans serviced for others, as of September 30, 2018 and December 31, 2017, is listed below:

TABLE 7.1

(in thousands)	September 30, 2018		December 31, 2017
Mortgage loans sold with servicing retained	$	3,802,891	$	3,256,548

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The following table summarizes activity relating to mortgage loans sold with servicing retained:

TABLE 7.2

	Three Months Ended September 30,				Nine Months Ended September 30,
(in thousands)	2018		2017		2018		2017
Mortgage loans sold with servicing retained	$	295,243	$	305,752	$	814,256	$	1,469,352
Pretax gains resulting from above loan sales (1)	6,116		5,865		14,938		15,136
Mortgage servicing fees (1)	2,316		1,902		6,713		5,512

(1) Recorded in mortgage banking operations.

Following is a summary of the MSR activity:

TABLE 7.3

	Three Months Ended September 30,						Nine Months Ended September 30,
(in thousands)	2018			2017			2018			2017
Balance at beginning of period	$	32,970		$	24,444		$	29,053		$	13,521
Fair value of MSRs acquired	—			—			—			8,553
Additions	3,513			3,500			9,538			7,530
Payoffs and curtailments	(526		)	(432		)	(1,435		)	(1,012		)
Impairment charge	(13		)	—			(13		)	—
Amortization	(599		)	(626		)	(1,798		)	(1,706		)
Balance at end of period	$	35,345		$	26,886		$	35,345		$	26,886
Fair value, beginning of period	$	38,603		$	27,173		$	32,419		$	17,546
Fair value, end of period	41,715			29,004			41,715			29,004

The fair value of MSRs is highly sensitive to changes in assumptions and is determined by estimating the present value of the asset’s future cash flows utilizing market-based prepayment rates, discount rates and other assumptions validated through comparison to trade information, industry surveys and with the use of independent third party appraisals. Changes in prepayment speed assumptions have the most significant impact on the fair value of MSRs. Generally, as interest rates decline, mortgage loan prepayments accelerate due to increased refinance activity, which results in a decrease in the fair value of the MSR and as interest rates increase, mortgage loan prepayments decline, which results in an increase in the fair value of the MSR. Measurement of fair value is limited to the conditions existing and the assumptions utilized as of a particular point in time, and those assumptions may not be appropriate if they are applied at a different time.

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Following is a summary of the sensitivity of the fair value of MSRs to changes in key assumptions:

TABLE 7.4

(dollars in thousands)	September 30, 2018			December 31, 2017
Weighted average life (months)	86.4			80.4
Constant prepayment rate (annualized)	9.0		%	9.9		%
Discount rate	9.9		%	9.9		%
Effect on fair value due to change in interest rates:
+0.25%	$	1,305		$	1,737
+0.50%	2,295			3,220
-0.25%	(1,666		)	(1,937		)
-0.50%	(3,775		)	(4,007		)

The sensitivity calculations above are hypothetical and should not be considered to be predictive of future performance. Changes in fair value based on adverse changes in assumptions generally cannot be extrapolated because the relationship of the changes in assumptions to fair value may not be linear. Also, in this table, the effects of an adverse variation in a particular assumption on the fair value of the MSRs is calculated without changing any other assumptions, while in reality, changes in one factor may result in changing another, which may magnify or contract the effect of the change.

SBA-Guaranteed Loan Servicing

We retain the servicing rights on SBA-guaranteed loans sold to investors. The standard sale structure under the SBA Secondary Participation Guaranty Agreement provides for us to retain a portion of the cash flow from the interest payment received on the loan, which is commonly known as a servicing spread. The unpaid principal balance of SBA-guaranteed loans serviced for investors, as of September 30, 2018 and December 31, 2017, was as follows:

TABLE 7.5

(in thousands)	September 30, 2018		December 31, 2017
SBA loans sold to investors with servicing retained	$	283,361	$	305,977

The following table summarizes activity relating to SBA loans sold with servicing retained:

TABLE 7.6

	Three Months Ended September 30,				Nine Months Ended September 30,
(in thousands)	2018		2017		2018		2017
SBA loans sold with servicing retained	$	10,138	$	16,443	$	33,651	$	42,172
Pretax gains resulting from above loan sales (1)	849		964		3,121		1,780
SBA servicing fees (1)	707		702		2,156		1,444

(1) Recorded in non-interest income.

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Following is a summary of the activity in SBA servicing rights:

TABLE 7.7

	Three Months Ended September 30,						Nine Months Ended September 30,
(in thousands)	2018			2017			2018			2017
Balance at beginning of period	$	4,894		$	5,284		$	5,058		$	—
Fair value of servicing rights acquired	—			—			—			5,399
Additions	113			391			759			655
Impairment (charge) / recovery	(422		)	(50		)	(651		)	(50		)
Amortization	(280		)	(342		)	(861		)	(721		)
Balance at end of period	$	4,305		$	5,283		$	4,305		$	5,283
Fair value, beginning of period	$	4,894		$	5,299		$	5,058		$	—
Fair value, end of period	4,305			5,283			4,305			5,283

Following is a summary of key assumptions and the sensitivity of the SBA loan servicing rights to changes in these assumptions:

TABLE 7.8

	September 30, 2018														December 31, 2017
			Decline in fair value due to														Decline in fair value due to
(dollars in thousands)	Actual		10% adverse change			20% adverse change			1% adverse change			2% adverse change			Actual		10% adverse change			20% adverse change			1% adverse change			2% adverse change
Weighted-average life (months)	54.7														63.5
Constant prepayment rate (annualized)	11.54	%	$	(148	)	$	(287	)	$	—		$	—		9.29	%	$	(145	)	$	(284	)	$	—		$	—
Discount rate	19.37		—			—			(114		)	(221		)	14.87		—			—			(147		)	(286		)

The fair value of the SBA servicing rights is compared to the amortized basis. If the amortized basis exceeds the fair value, the asset is considered impaired and is written down to fair value through a valuation allowance on the asset and a charge against SBA income. We had a $0.9 million valuation allowance for SBA servicing rights as of September 30, 2018.

NOTE 8.    BORROWINGS

Following is a summary of short-term borrowings:

TABLE 8.1

(in thousands)	September 30, 2018		December 31, 2017
Securities sold under repurchase agreements	$	265,029	$	256,017
Federal Home Loan Bank advances	1,985,000		2,285,000
Federal funds purchased	1,315,000		1,000,000
Subordinated notes	114,351		137,320
Total short-term borrowings	$	3,679,380	$	3,678,337

Borrowings with original maturities of one year or less are classified as short-term. Securities sold under repurchase agreements are 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

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outstanding balance. Of the total short-term FHLB advances, 67.0% and 75.7% had overnight maturities as of September 30, 2018 and December 31, 2017, respectively.

Following is a summary of long-term borrowings:

TABLE 8.2

(in thousands)	September 30, 2018		December 31, 2017
Federal Home Loan Bank advances	$	270,036	$	310,061
Subordinated notes	87,065		87,614
Junior subordinated debt	110,707		110,347
Other subordinated debt	159,241		160,151
Total long-term borrowings	$	627,049	$	668,173

Our banking affiliate has available credit with the FHLB of $7.5 billion, of which $2.3 billion was utilized as of September 30, 2018. These advances are secured by loans collateralized by residential mortgages, home equity lines of credit, 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 1.39% to 4.19% for the nine months ended September 30, 2018 and 0.95% to 4.19% for the year ended December 31, 2017.

The junior subordinated debt is comprised of the debt securities issued by FNB in relation to our unconsolidated subsidiary trusts (collectively, the Trusts), which are unconsolidated variable interest entities, and is included on the Balance Sheet in long-term borrowings. Since third-party investors are the primary beneficiaries, the Trusts are not consolidated in our Financial Statements. We record the distributions on the junior subordinated debt issued to the Trusts as interest expense.

The following table provides information relating to the Trusts as of September 30, 2018:

TABLE 8.3

(dollars in thousands)	Trust Preferred Securities		Common Securities		Junior Subordinated Debt		Stated Maturity Date	Interest Rate		Rate Reset Factor
F.N.B. Statutory Trust II	$	21,500	$	665	$	22,165	6/15/2036	3.98	%	LIBOR + 165 basis points (bps)
Omega Financial Capital Trust I	26,000		1,114		26,502		10/18/2034	4.55	%	LIBOR + 219 bps
Yadkin Valley Statutory Trust I	25,000		774		21,049		12/15/2037	3.65	%	LIBOR + 132 bps
FNB Financial Services Capital Trust I	25,000		774		21,972		9/30/2035	3.80	%	LIBOR + 146 bps
American Community Capital Trust II	10,000		310		10,442		12/15/2033	5.13	%	LIBOR + 280 bps
Crescent Financial Capital Trust I	8,000		248		8,577		10/7/2033	5.44	%	LIBOR + 310 bps
Total	$	115,500	$	3,885	$	110,707

NOTE 9.    DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES

We are exposed to certain risks arising from both our business operations and economic conditions. We principally manage our exposures to a wide variety of business and operational risks through management of our core business activities. We manage economic risks, including interest rate risk, primarily by managing the amount, source, and duration of our 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. We also use derivative instruments to facilitate transactions on behalf of our customers.

All derivatives are carried on the Consolidated Balance Sheets at fair value and do not take into account the effects of master netting arrangements we have with other financial institutions. Credit risk is included in the determination of the estimated fair value of derivatives. Derivative assets are reported in the Consolidated Balance Sheets in other assets and derivative liabilities

40

are reported in the Consolidated Balance Sheets in 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 our derivative assets and derivative liabilities which are not offset in the Balance Sheet.

TABLE 9.1

	September 30, 2018						December 31, 2017
	Notional		Fair Value				Notional		Fair Value
(in thousands)	Amount		Asset		Liability		Amount		Asset		Liability
Gross Derivatives
Subject to master netting arrangements:
Interest rate contracts – designated	$	855,000	$	—	$	4,760	$	705,000	$	228	$	1,982
Interest rate swaps – not designated	2,674,906		5,353		6,147		2,245,442		1,169		11,599
Equity contracts – not designated	1,180		23		—		1,180		51		—
Total subject to master netting arrangements	3,531,086		5,376		10,907		2,951,622		1,448		13,581
Not subject to master netting arrangements:
Interest rate swaps – not designated	2,674,906		12,214		64,006		2,245,442		27,233		15,303
Interest rate lock commitments – not designated	67,079		772		21		88,107		1,594		5
Forward delivery commitments – not designated	90,861		362		33		106,572		233		148
Credit risk contracts – not designated	201,781		23		51		235,196		39		109
Equity contracts – not designated	1,180		—		23		1,180		—		51
Total not subject to master netting arrangements	3,035,807		13,371		64,134		2,676,497		29,099		15,616
Total	$	6,566,893	$	18,747	$	75,041	$	5,628,119	$	30,547	$	29,197

Beginning in the first quarter of 2017, certain derivative exchanges have enacted a rule change which in effect results in the legal characterization of variation margin payments for certain derivative contracts as settlement of the derivatives mark-to-market exposure and not collateral. This rule change became effective for us in the first quarter of 2017. Accordingly, we have changed our reporting of certain derivatives to record variation margin on trades cleared through exchanges that have adopted the rule change as settled where we had previously recorded cash collateral. The daily settlement of the derivative exposure does not change or reset the contractual terms of the instrument.

Derivatives Designated as Hedging Instruments under GAAP

Interest Rate Contracts. We entered into interest rate derivative agreements to modify the interest rate characteristics of certain commercial loans and seven of our 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. Any ineffective portion of the gain or loss is reported in earnings immediately.

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Following is a summary of key data related to interest rate contracts:

TABLE 9.2

(in thousands)	September 30, 2018		December 31, 2017
Notional amount	$	855,000	$	705,000
Fair value included in other assets	—		228
Fair value included in other liabilities	4,760		1,982

The following table shows amounts reclassified from accumulated other comprehensive income for the nine months ended September 30, 2018:

TABLE 9.3

(in thousands)	Total			Net of Tax
Reclassified from AOCI to interest income	$	(130	)	$	(103	)
Reclassified from AOCI to interest expense	(1,693		)	(1,337		)

As of September 30, 2018, the maximum length of time over which forecasted interest cash flows are hedged is 5 years. In the twelve months that follow September 30, 2018, we expect to reclassify from the amount currently reported in AOCI net derivative gains of $4.1 million ($3.2 million net of tax), in association with interest on the hedged loans and FHLB advances. 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 September 30, 2018.

There were no components of derivative gains or losses excluded from the assessment of hedge effectiveness related to these cash flow hedges. For the nine months ended September 30, 2018 and 2017, there was no hedge ineffectiveness. Also, during the nine months ended September 30, 2018 and 2017, 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

A description of interest rate swaps, interest rate lock commitments, forward delivery commitments and credit risk contracts can be found in Note 14 "Derivative Instruments and Hedging Activities" in the Consolidated Financial Statements of the Annual Report on Form 10-K for the year ended December 31, 2017 filed with the SEC on February 28, 2018.

Following is a summary of key data related to interest rate swaps:

TABLE 9.4

(in thousands)	September 30, 2018		December 31, 2017
Notional amount	$	5,349,812	$	4,490,884
Fair value included in other assets	17,567		28,402
Fair value included in other liabilities	70,153		26,902

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 Sheets with any resulting gain or loss recorded in current period earnings as other income or other expense.

Risk participation agreements sold with notional amounts totaling $121.7 million as of September 30, 2018 have remaining terms ranging from two months to nine years. Under these agreements, our maximum exposure assuming a customer defaults on their obligation to perform under certain derivative swap contracts with third parties would be $0.1 million at September 30, 2018 and $0.1 million at December 31, 2017. The fair values of risk participation agreements purchased and sold were $0.02

42

million and $(0.05) million, respectively, at September 30, 2018 and $0.04 million and $(0.1) million, respectively at December 31, 2017.

Counterparty Credit Risk

We are party to master netting arrangements with most of our swap derivative dealer counterparties. Collateral, usually marketable securities and/or cash, is exchanged between FNB and our counterparties, and is generally subject to thresholds and transfer minimums. For swap transactions that require central clearing, we post cash to our clearing agency. Collateral positions are settled or valued daily, and adjustments to amounts received and pledged by us 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 we had breached our agreements with our derivative counterparties we would be required to settle our obligations under the agreements at the termination value and would be required to pay an additional $0.4 million and $0.9 million as of September 30, 2018 and December 31, 2017, respectively, in excess of amounts previously posted as collateral with the respective counterparty.

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

TABLE 9.5

			Amount Not Offset in the Balance Sheet
(in thousands)	Net Amount Presented in the Balance Sheet		Financial Instruments		Cash Collateral		Net Amount
September 30, 2018
Derivative Assets
Interest rate contracts:
Designated	$	—	$	—	$	—	$	—
Not designated	5,353		5,279		—		74
Equity contracts – not designated	23		23		—		—
Total	$	5,376	$	5,302	$	—	$	74

Derivative Liabilities
Interest rate contracts:
Designated	$	4,760	$	4,760	$	—	$	—
Not designated	6,147		5,840		—		307
Total	$	10,907	$	10,600	$	—	$	307

December 31, 2017
Derivative Assets
Interest rate contracts:
Designated	$	228	$	228	$	—	$	—
Not designated	1,169		1,169		—		—
Equity contracts – not designated	51		51		—		—
Total	$	1,448	$	1,448	$	—	$	—

Derivative Liabilities
Interest rate contracts:
Designated	$	1,982	$	1,982	$	—	$	—
Not designated	11,599		10,940		—		659
Total	$	13,581	$	12,922	$	—	$	659

The following table presents the effect of certain derivative financial instruments on the Income Statement:

TABLE 9.6

		Nine Months Ended September 30,
(in thousands)	Income Statement Location	2018			2017
Interest Rate Contracts	Interest income - loans and leases	$	(130	)	$	1,185
Interest Rate Contracts	Interest expense – short-term borrowings	(1,693		)	1,059
Interest Rate Swaps	Other income	956			(592		)
Credit Risk Contracts	Other income	42			(1		)

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NOTE 10.    COMMITMENTS, CREDIT RISK AND CONTINGENCIES

We have 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 Sheets. Our 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 commitments to extend credit 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:

TABLE 10.1

(in thousands)	September 30, 2018		December 31, 2017
Commitments to extend credit	$	7,349,375	$	6,957,822
Standby letters of credit	130,191		132,904

At September 30, 2018, funding of 77.3% of the commitments to extend credit was dependent on the financial condition of the customer. We have the ability to withdraw such commitments at our 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 us that may require payment at a future date. The credit risk involved in issuing letters of credit is actively monitored through review of the historical performance of our portfolios.

In addition to the above commitments, subordinated notes issued by FNB Financial Services, LP, a wholly-owned finance subsidiary, are fully and unconditionally guaranteed by FNB. These subordinated notes are included in the summaries of short-term borrowings and long-term borrowings in Note 8.

Other Legal Proceedings

In the ordinary course of business, we are routinely named as defendants in, or made parties to, pending and potential legal actions. Also, as regulated entities, we are subject to governmental and regulatory examinations, information-gathering requests, and may be subject to investigations and proceedings (both formal and informal). Such threatened claims, litigation, investigations, regulatory and administrative proceedings typically entail matters that are considered incidental to the normal conduct of business. Claims for significant monetary damages may be asserted in many of these types of legal actions, while claims for disgorgement, restitution, penalties and/or other remedial actions or sanctions may be sought in regulatory matters. In these instances, if we determine that we have meritorious defenses, we will engage in an aggressive defense. However, if management determines, in consultation with counsel, that settlement of a matter is in the best interest of our Company and our shareholders, we may do so. 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, we do 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 our financial position or liquidity, 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 adverse reputational impact, if any, associated with each such matter. In accordance with applicable accounting guidance, we establish 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. We 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, we do not establish an accrual and the matter will continue to be monitored for any developments that

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would make the loss contingency both probable and reasonably estimable. We believe that our accruals for legal proceedings are appropriate and, in the aggregate, are not material to our consolidated financial position, although future accruals could have a material effect on net income in a given period.

NOTE 11.    STOCK INCENTIVE PLANS

Restricted Stock

We issue restricted stock awards to key employees under our Incentive Compensation Plan (Plan). We issue time-based awards and performance-based awards under this Plan, 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 our common stock on the grant date. The fair value of the performance-based awards is based on a Monte-Carlo simulation valuation of our common stock as of the grant date. The assumptions used for this valuation include stock price volatility, risk-free interest rate and dividend yield.

We issued 283,037 and 251,379 performance-based restricted stock units during the first nine months of 2018 and 2017. For performance-based restricted stock awards granted in 2018, we incorporated a new metric in which recipients will earn shares totaling between 0% and 175% of the number of units issued, based on our return on average tangible assets (ROATA) relative to a specified peer group of financial institutions over the three-year period. The result calculated using ROATA will then be adjusted by 75% to 125%, based on our total shareholder return (TSR) relative to the specified peer group of financial institutions. For performance-based restricted stock awards granted from 2014 through 2017, the recipients will earn shares, totaling between 0% and 175% of the number of units issued, based on our TSR relative to a specified peer group of financial institutions over the three-year period. These market-based restricted stock award units are included in the table below based on where we expect them to vest, regardless of the actual vesting percentages.

As of September 30, 2018, we had available up to 2,333,089 shares of common stock to issue under this Plan.

The following table details our issuance of restricted stock units and the aggregate weighted average grant date fair values under these plans for the years indicated.

TABLE 11.1

	Nine Months Ended September 30,
(dollars in thousands)	2018		2017
Restricted stock units	958,720		713,998
Weighted average grant date fair values	$	12,665	$	10,474

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.

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The following table summarizes the activity relating to restricted stock units during the periods indicated:

TABLE 11.2

	Nine Months Ended September 30,
	2018				2017
	Units		Weighted Average Grant Price per Share		Units		Weighted Average Grant Price per Share
Unvested units outstanding at beginning of period	1,975,862		$	13.64	1,836,363		$	12.97
Granted	958,720		13.21		713,998		14.67
Vested	(257,712	)	13.18		(594,560	)	12.84
Forfeited/expired	(209,438	)	13.36		(27,109	)	13.94
Dividend reinvestment	60,938		13.72		46,969		13.79
Unvested units outstanding at end of period	2,528,370		13.55		1,975,661		13.63

The following table provides certain information related to restricted stock units:

TABLE 11.3

(in thousands)	Nine Months Ended September 30,
	2018		2017
Stock-based compensation expense	$	7,310	$	6,088
Tax benefit related to stock-based compensation expense	1,535		2,131
Fair value of units vested	3,472		8,046

As of September 30, 2018, there was $16.3 million of unrecognized compensation cost related to unvested restricted stock units, including $1.0 million that is subject to accelerated vesting under the Plan’s immediate vesting upon retirement. The components of the restricted stock units as of September 30, 2018 are as follows:

TABLE 11.4

(dollars in thousands)	Service- Based Units		Performance- Based Units		Total
Unvested restricted stock units	1,455,391		1,072,979		2,528,370
Unrecognized compensation expense	$	10,770	$	5,514	$	16,284
Intrinsic value	$	18,513	$	13,648	$	32,161
Weighted average remaining life (in years)	2.09		1.19		1.71

Stock Options

All outstanding stock options were assumed from acquisitions and are fully vested. Upon consummation of our acquisitions, all outstanding stock options issued by the acquired companies were converted into equivalent FNB stock options. We issue shares of treasury stock or authorized but unissued shares to satisfy stock options exercised.

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The following table summarizes the activity relating to stock options during the periods indicated:

TABLE 11.5

	Nine Months Ended September 30,
	2018				2017
	Shares		Weighted Average Exercise Price per  Share		Shares		Weighted Average Exercise Price per  Share
Options outstanding at beginning of period	722,650		$	7.96	892,532		$	8.95
Assumed from acquisitions	—		—		207,645		8.92
Exercised	(214,781	)	7.91		(163,455	)	9.41
Forfeited/expired	(4,834	)	11.65		(56,687	)	11.16
Options outstanding and exercisable at end of period	503,035		7.97		880,035		8.72

The intrinsic value of outstanding and exercisable stock options at September 30, 2018 was $2.4 million. The aggregate intrinsic value represents the amount by which the fair value of underlying stock exceeds the option exercise price.

NOTE 12.    RETIREMENT PLANS

Our 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, we match 100% of the first 6% that the employee defers. During the second quarter of 2018, we made a one-time discretionary contribution of $0.9 million to the vast majority of our employees following the tax reform that was enacted in December 2017. Additionally, we may provide a performance-based company contribution of up to 3% if we exceed annual financial goals. Our contribution expense is presented in the following table:

TABLE 12.1

	Nine Months Ended September 30,
(in thousands)	2018		2017
401(k) contribution expense	$	11,210	$	9,081

We also sponsor an Employee Retirement Income Security Act of 1974 (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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Additionally, we sponsor a qualified non-contributory defined benefit pension plan and two supplemental non-qualified retirement plans that have been frozen. Although not required, we made a $4.0 million contribution to the non-contributory defined benefit pension plan during the third quarter of 2018 in order to meet the minimum funding requirements of this plan. The net periodic benefit credit for these plans includes the following components:

TABLE 12.2

	Three Months Ended September 30,						Nine Months Ended September 30,
(in thousands)	2018			2017			2018			2017
Service cost	$	(3	)	$	(3	)	$	(11	)	$	(11	)
Interest cost	1,549			1,463			4,669			4,417
Expected return on plan assets	(2,946		)	(2,427		)	(8,736		)	(7,281		)
Amortization:
Unrecognized prior service cost	1			2			1			6
Unrecognized loss	596			603			1,842			1,859
Net periodic pension credit	$	(803	)	$	(362	)	$	(2,235	)	$	(1,010	)

NOTE 13.      INCOME TAXES

The TCJA includes several changes to existing U.S. tax laws that impact us, most notably a reduction of the U.S. corporate income tax rate from 35% to 21%, which became effective January 1, 2018. We recognized the initial income tax effects of the TCJA in our 2017 financial statements in accordance with Staff Accounting Bulletin No. 118, which provides SEC staff guidance for the application of ASC 740, Income Taxes, in the reporting period in which the TCJA was signed into law.We recorded a provisional amount of $54.0 million at December 31, 2017 related to the remeasurement of deferred tax balances. Upon final analysis of available information and refinement of our calculations during the nine months ended September 30, 2018, we decreased our provisional amount by $1.9 million which is included as a component of income tax expense from continuing operations. We consider the TCJA remeasurement of our deferred taxes to be complete.

Income Tax Expense

Federal and state income tax expense and the statutory tax rate and the actual effective tax rate consist of the following:

TABLE 13.1

	Three Months Ended September 30,						Nine Months Ended September 30,
(in thousands)	2018			2017			2018			2017
Current income taxes:
Federal taxes	$	7,683		$	16,569		$	31,132		$	29,859
State taxes	1,145			406			3,894			1,991
Total current income taxes	8,828			16,975			35,026			31,850
Deferred income taxes:
Federal taxes	12,952			14,088			28,110			38,238
State taxes	374			2,115			757			(809		)
Total deferred income taxes	13,326			16,203			28,867			37,429
Total income taxes	$	22,154		$	33,178		$	63,893		$	69,279
Statutory tax rate	21.0		%	35.0		%	21.0		%	35.0		%
Effective tax rate	18.0		%	29.9		%	19.0		%	28.4		%

The effective tax rate for the nine months ended September 30, 2018 was lower than the statutory tax rate of 21% due to the recognized adjustments to our provisional TCJA deferred tax remeasurement, and the tax benefits resulting from tax-exempt

49

income on investments, loans, tax credits and income from BOLI. The lower effective tax rate for the nine months ended September 30, 2017 primarily related to merger expenses and an increase in the level of tax credits.

In the fourth quarter of 2017, we elected to change our accounting policy under ASU 2018-02, Income Statement - Reporting Comprehensive Income (Topic 220) to reclassify the income tax effects related to the TCJA from AOCI to retained earnings.

Deferred Income Taxes

Deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and tax purposes. Deferred tax assets and liabilities are measured based on the enacted tax rates that will apply in the years in which the temporary differences are expected to be recovered or paid. As such, during December 2017, we remeasured our deferred tax assets and liabilities as a result of the passage of the TCJA. The primary impact of this remeasurement was a reduction in deferred tax assets and liabilities in connection with the reduction of the U.S. corporate income tax rate from 35% to 21%.

NOTE 14.    OTHER COMPREHENSIVE INCOME

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

TABLE 14.1

(in thousands)	Unrealized Net Losses on Debt Securities Available for Sale			Unrealized Net Gains (Losses) on Derivative Instruments			Unrecognized Pension and Postretirement Obligations			Total
Nine Months Ended September 30, 2018
Balance at beginning of period	$	(29,626	)	$	5,407		$	(58,833	)	$	(83,052	)
Other comprehensive (loss) income before reclassifications	(50,970		)	6,991			1,431			(42,548		)
Amounts reclassified from AOCI	(24		)	(1,216		)	—			(1,240		)
Net current period other comprehensive (loss) income	(50,994		)	5,775			1,431			(43,788		)
Balance at end of period	$	(80,620	)	$	11,182		$	(57,402	)	$	(126,840	)

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

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

NOTE 15.    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.

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

TABLE 15.1

	Three Months Ended September 30,				Nine Months Ended September 30,
(dollars in thousands, except per share data)	2018		2017		2018		2017
Net income	$	100,763	$	77,693	$	272,731	$	175,078
Less: Preferred stock dividends	2,010		2,010		6,030		6,030
Net income available to common stockholders	$	98,753	$	75,683	$	266,701	$	169,048
Basic weighted average common shares outstanding	324,435,939		323,410,932		324,118,236		295,012,986
Net effect of dilutive stock options, warrants and restricted stock	1,217,192		1,493,836		1,556,470		1,639,810
Diluted weighted average common shares outstanding	325,653,131		324,904,768		325,674,706		296,652,796
Earnings per common share:
Basic	$	0.30	$	0.23	$	0.82	$	0.57
Diluted	$	0.30	$	0.23	$	0.82	$	0.57

The following table shows the average shares excluded from the above calculation as their effect would have been anti-dilutive: 

TABLE 15.2

	Three Months Ended September 30,		Nine Months Ended September 30,
	2018	2017	2018	2017
Average shares excluded from the diluted earnings per common share calculation	86	1,842	59	1,059

NOTE 16.    CASH FLOW INFORMATION

Following is a summary of supplemental cash flow information:

TABLE 16.1

	Nine Months Ended September 30,
	2018		2017
(in thousands)
Interest paid on deposits and other borrowings	$	157,933	$	89,014
Income taxes paid	14,000		52,500
Transfers of loans to other real estate owned	9,562		24,025
Financing of other real estate owned sold	—		19

NOTE 17.    BUSINESS SEGMENTS

We operate in three reportable segments: Community Banking, Wealth Management and Insurance.

• The Community Banking segment provides commercial and consumer banking services. Commercial banking solutions include corporate banking, small business banking, investment real estate financing, 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.

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• 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.

We also previously operated a Consumer Finance segment, which is no longer a reportable segment. This segment primarily made installment loans to individuals and purchased installment sales finance contracts from retail merchants. On August 31, 2018, as part of our strategy to enhance the overall positioning of our consumer banking operations, we sold 100 percent of the issued and outstanding capital stock of Regency to Mariner Finance, LLC. This transaction was completed to accomplish several strategic objectives, including enhancing the credit risk profile of the consumer loan portfolio, offering additional liquidity and selling a non-strategic business segment that no longer fits with our core business. The Consumer Finance segment is shown in the following tables to include Regency's financial information through August 31, 2018.

The following tables provide financial information for these segments of FNB. The information provided under the caption “Parent and Other” represents operations not considered to be reportable segments and/or general operating expenses of FNB, and includes the parent company, other non-bank subsidiaries and eliminations and adjustments to reconcile to the Consolidated Financial Statements.

TABLE 17.1

(in thousands)	Community Banking		Wealth Management		Insurance			Consumer Finance		Parent and Other			Consolidated
At or for the Three Months Ended September 30, 2018
Interest income	$	291,478	$	6	$	(16	)	$	6,250	$	97		$	297,815
Interest expense	58,336		—		—			634		4,058			63,028
Net interest income	233,142		6		(16		)	5,616		(3,961		)	234,787
Provision for credit losses	13,692		—		—			1,337		946			15,975
Non-interest income	55,708		11,129		4,266			459		3,272			74,834
Non-interest expense (1)	148,847		8,300		4,362			3,825		1,590			166,924
Amortization of intangibles	3,695		61		49			—		—			3,805
Income tax expense (benefit)	22,188		599		(26		)	234		(841		)	22,154
Net income (loss)	100,428		2,175		(135		)	679		(2,384		)	100,763
Total assets	32,526,809		26,381		19,323			—		45,082			32,617,595
Total intangibles	2,307,734		10,006		12,091			—		—			2,329,831
At or for the Three Months Ended September 30, 2017
Interest income	$	249,923	$	—	$	20		$	9,981	$	3,590		$	263,514
Interest expense	29,463		—		—			938		7,882			38,283
Net interest income	220,460		—		20			9,043		(4,292		)	225,231
Provision for credit losses	14,847		—		—			1,921		—			16,768
Non-interest income	52,020		10,006		4,209			741		(825		)	66,151
Non-interest expense (1)	142,015		7,451		3,907			5,261		304			158,938
Amortization of intangibles	4,689		64		52			—		—			4,805
Income tax expense (benefit)	33,238		904		105			1,038		(2,107		)	33,178
Net income (loss)	77,691		1,587		165			1,564		(3,314		)	77,693
Total assets	30,889,485		23,573		21,242			185,209		3,786			31,123,295
Total intangibles	2,327,495		10,224		12,179			1,809		—			2,351,707

(1) Excludes amortization of intangibles, which is presented separately.

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(in thousands)	Community Banking		Wealth Management		Insurance		Consumer Finance		Parent and Other			Consolidated
At or for the Nine Months Ended September 30, 2018
Interest income	$	839,833	$	6	$	23	$	24,893	$	104		$	864,859
Interest expense	150,814		—		—		2,429		11,369			164,612
Net interest income	689,019		6		23		22,464		(11,265		)	700,247
Provision for credit losses	39,381		—		—		5,697		946			46,024
Non-interest income	160,157		33,370		12,264		1,750		(315		)	207,226
Non-interest expense (1)	457,189		25,272		11,968		14,348		4,214			512,991
Amortization of intangibles	11,499		182		153		—		—			11,834
Income tax expense (benefit)	65,199		1,769		55		1,152		(4,282		)	63,893
Net income (loss)	275,908		6,153		111		3,017		(12,458		)	272,731
Total assets	32,526,809		26,381		19,323		—		45,082			32,617,595
Total intangibles	2,307,734		10,006		12,091		—		—			2,329,831
At or for the Nine Months Ended September 30, 2017
Interest income	$	677,221	$	—	$	59	$	29,997	$	1,964		$	709,241
Interest expense	76,742		—		—		2,748		13,353			92,843
Net interest income	600,479		—		59		27,249		(11,389		)	616,398
Provision for credit losses	38,649		—		—		5,725		—			44,374
Non-interest income	145,768		29,376		12,030		2,221		(2,050		)	187,345
Non-interest expense (1)	451,740		22,978		10,678		15,780		1,120			502,296
Amortization of intangibles	12,365		190		161		—		—			12,716
Income tax expense (benefit)	69,749		2,266		462		3,178		(6,376		)	69,279
Net income (loss)	173,744		3,942		788		4,787		(8,183		)	175,078
Total assets	30,889,485		23,573		21,242		185,209		3,786			31,123,295
Total intangibles	2,327,495		10,224		12,179		1,809		—			2,351,707

(1) Excludes amortization of intangibles, which is presented separately.

NOTE 18.    FAIR VALUE MEASUREMENTS

Refer to Note 24 "Fair Value Measurements" to the Consolidated Financial Statements of the Annual Report on Form 10-K for the year ended December 31, 2017 filed with the SEC on February 28, 2018 for a description of additional valuation methodologies for assets and liabilities measured at fair value on a recurring and non-recurring basis.

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

TABLE 18.1

(in thousands)	Level 1		Level 2		Level 3		Total
September 30, 2018
Assets Measured at Fair Value
Debt securities available for sale
U.S. government agencies	$	—	$	163,000	$	—	$	163,000
U.S. government-sponsored entities	—		356,267		—		356,267
Residential mortgage-backed securities:
Agency mortgage-backed securities	—		1,483,820		—		1,483,820
Agency collateralized mortgage obligations	—		1,046,481		—		1,046,481
Non-agency collateralized mortgage obligations	—		—		—		—
Commercial mortgage-backed securities	—		226,775		—		226,775
States of the U.S. and political subdivisions	—		20,681		—		20,681
Other debt securities	—		1,870		—		1,870
Total debt securities available for sale	—		3,298,894		—		3,298,894
Loans held for sale	—		24,943		—		24,943
Marketable equity securities
Fixed income mutual fund	—		—		—		—
Financial services industry	—		188		—		188
Total marketable equity securities	—		188		—		188
Derivative financial instruments
Trading	—		17,590		—		17,590
Not for trading	—		385		772		1,157
Total derivative financial instruments	—		17,975		772		18,747
Total assets measured at fair value on a recurring basis	$	—	$	3,342,000	$	772	$	3,342,772
Liabilities Measured at Fair Value
Derivative financial instruments
Trading	$	—	$	70,176	$	—	$	70,176
Not for trading	—		4,844		21		4,865
Total derivative financial instruments	—		75,020		21		75,041
Total liabilities measured at fair value on a recurring basis	$	—	$	75,020	$	21	$	75,041

54

(in thousands)	Level 1		Level 2		Level 3		Total
December 31, 2017
Assets Measured at Fair Value
Debt securities available for sale
U.S. government-sponsored entities	$	—	$	343,942	$	—	$	343,942
Residential mortgage-backed securities:
Agency mortgage-backed securities	—		1,598,874		—		1,598,874
Agency collateralized mortgage obligations	—		794,957		—		794,957
Non-agency collateralized mortgage obligations	—		1		—		1
States of the U.S. and political subdivisions	—		21,093		—		21,093
Other debt securities	—		4,670		—		4,670
Total debt securities available for sale	—		2,763,537		—		2,763,537
Equity securities available for sale
Fixed income mutual fund	161		—		—		161
Financial services industry	—		864		—		864
Total equity securities available for sale	161		864		—		1,025
Total securities available for sale	161		2,764,401		—		2,764,562
Loans held for sale	—		56,458		—		56,458
Derivative financial instruments
Trading	—		28,453		—		28,453
Not for trading	—		500		1,594		2,094
Total derivative financial instruments	—		28,953		1,594		30,547
Total assets measured at fair value on a recurring basis	$	161	$	2,849,812	$	1,594	$	2,851,567
Liabilities Measured at Fair Value
Derivative financial instruments
Trading	$	—	$	26,953	$	—	$	26,953
Not for trading	—		2,239		5		2,244
Total derivative financial instruments	—		29,192		5		29,197
Total liabilities measured at fair value on a recurring basis	$	—	$	29,192	$	5	$	29,197

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

TABLE 18.2

(in thousands)	Other Debt Securities			Equity Securities			Residential Non-Agency Collateralized Mortgage Obligations			Interest Rate Lock Commitments			Total
Nine Months Ended September 30, 2018
Balance at beginning of period	$	—		$	—		$	—		$	1,594		$	1,594
Purchases, issuances, sales and settlements:
Purchases	—			—			—			3,814			3,814
Settlements	—			—			—			(4,636		)	(4,636		)
Balance at end of period	$	—		$	—		$	—		$	772		$	772
Year Ended December 31, 2017
Balance at beginning of period	$	—		$	492		$	894		$	—		$	1,386
Total gains (losses) – realized/unrealized:
Included in earnings	—			—			4			—			4
Included in other comprehensive income	—			86			(6		)	—			80
Accretion included in earnings	(1		)	—			1			—			—
Purchases, issuances, sales and settlements:
Purchases	12,048			—			—			1,594			13,642
Sales/redemptions	(12,047		)	—			(874		)	—			(12,921		)
Settlements	—			—			(19		)	(4,569		)	(4,588		)
Transfers from Level 3	—			(578		)	—			—			(578		)
Transfers into Level 3	—			—			—			4,569			4,569
Balance at end of period	$	—		$	—		$	—		$	1,594		$	1,594

We review 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. There were no transfers of assets or liabilities between the hierarchy levels during the first nine months of 2018. During the first quarter of 2017, we acquired $12.0 million in other debt securities from YDKN that are measured at Level 3. These securities were sold during the second quarter of 2017. During the first nine months of 2017, we transferred equity securities totaling $0.6 million from Level 3 to Level 2, as a result of increased trading activity relating to these securities.

For the nine months ended September 30, 2018, we recorded in earnings $0.6 million of unrealized gains relating to the adoption of ASU 2016-01 and market value adjustments on marketable equity securities. These unrealized gains included in earnings are in the other non-interest income line item in the Consolidated Statement of Income. For the nine months ended September 30, 2017, 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 realized net securities gains included in earnings are in the net securities gains line item in the Consolidated Statements of Income.

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In accordance with GAAP, from time to time, we measure 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 described in Note 24 "Fair Value Measurements" in our 2017 Form 10-K. 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:

TABLE 18.3

(in thousands)	Level 1		Level 2		Level 3		Total
September 30, 2018
Impaired loans	$	—	$	1,440	$	4,858	$	6,298
Other real estate owned	—		—		5,570		5,570
Other assets - SBA servicing asset	—		—		4,305		4,305
December 31, 2017
Impaired loans	$	—	$	2,813	$	1,297	$	4,110
Other real estate owned	—		10,513		10,823		21,336
Loans held for sale - SBA	—		—		36,432		36,432
Other assets - SBA servicing asset	—		—		5,058		5,058

Substantially all of the fair value amounts in the table above were estimated at a date during the nine months or twelve months ended September 30, 2018 and December 31, 2017, respectively. Consequently, the fair value information presented is not necessarily as of the period’s end.

Impaired loans measured or re-measured at fair value on a non-recurring basis during the nine months ended September 30, 2018 had a carrying amount of $6.3 million, which includes an allocated allowance for credit losses of $4.8 million. The allowance for credit losses includes a provision applicable to the current period fair value measurements of $6.0 million, which was included in the provision for credit losses for the nine months ended September 30, 2018.

OREO with a carrying amount of $8.4 million was written down to $5.6 million, resulting in a loss of $2.8 million, which was included in earnings for the nine months ended September 30, 2018.

Fair Value of Financial Instruments

Refer to Note 24 "Fair Value Measurements" to the Consolidated Financial Statements of the Annual Report on Form 10-K for the year ended December 31, 2017 filed with the SEC on February 28, 2018 for a description of methods and assumptions that were used to estimate the fair value of each financial instrument.

57

The fair values of our financial instruments are as follows:

TABLE 18.4

					Fair Value Measurements
(in thousands)	Carrying Amount		Fair  Value		Level 1		Level 2		Level 3
September 30, 2018
Financial Assets
Cash and cash equivalents	$	437,853	$	437,853	$	437,853	$	—	$	—
Debt securities available for sale	3,298,894		3,298,894		—		3,298,894		—
Debt securities held to maturity	3,206,345		3,032,947		—		3,032,947		—
Net loans and leases, including loans held for sale	21,703,605		21,270,133		—		24,943		21,245,190
Loan servicing rights	39,664		46,021		—		—		46,021
Marketable equity securities	188		188		—		188		—
Derivative assets	18,747		18,747		—		17,975		772
Accrued interest receivable	102,513		102,513		102,513		—		—
Financial Liabilities
Deposits	23,499,986		23,437,161		18,052,235		5,384,926		—
Short-term borrowings	3,679,380		3,679,933		3,679,933		—		—
Long-term borrowings	627,049		618,778		—		—		618,778
Derivative liabilities	75,041		75,041		—		75,020		21
Accrued interest payable	19,159		19,159		19,159		—		—
December 31, 2017
Financial Assets
Cash and cash equivalents	$	479,443	$	479,443	$	479,443	$	—	$	—
Securities available for sale	2,764,562		2,764,562		161		2,764,401		—
Debt securities held to maturity	3,242,268		3,218,379		—		3,218,379		—
Net loans and leases, including loans held for sale	20,916,277		20,661,196		—		56,458		20,604,738
Loan servicing rights	34,111		37,758		—		—		37,758
Derivative assets	30,547		30,547		—		28,953		1,594
Accrued interest receivable	94,254		94,254		94,254		—		—
Financial Liabilities
Deposits	22,399,725		22,359,182		17,779,246		4,579,936		—
Short-term borrowings	3,678,337		3,678,723		3,678,723		—		—
Long-term borrowings	668,173		675,489		—		—		675,489
Derivative liabilities	29,197		29,197		—		29,192		5
Accrued interest payable	12,480		12,480		12,480		—		—

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

Management’s Discussion and Analysis represents an overview of and highlights material changes to our financial condition and results of operations at and for the three- and nine-month periods ended September 30, 2018 and 2017. This Discussion and Analysis should be read in conjunction with the Consolidated Financial Statements and notes thereto contained herein and our 2017 Annual Report on Form 10-K filed with the SEC on February 28, 2018. Our results of operations for the nine months ended September 30, 2018 are not necessarily indicative of results expected for the full year.

CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING INFORMATION

A number of statements in this Report may contain forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 including our expectations relative to business and financial metrics, our outlook regarding revenues, expenses, earnings. liquidity, asset quality and statements regarding the impact of technology enhancements and customer and business process improvements.

Where we express an expectation or belief as to future events or results, such expectation or belief is expressed in good faith and believed to have a reasonable basis. However, our forward-looking statements are based on current expectations and assumptions that are subject to risk, uncertainties and unforeseen events which may cause actual results to differ materially from future results expressed, projected or implied by these forward-looking statements. All forward-looking statements speak only as of the date they are made and are based on information available at that time. We assume no obligation to update forward-looking statements to reflect circumstances or events that occur after the date the forward-looking statements were made or to reflect the occurrence of unanticipated events, except as required by federal securities laws. Further, it is not possible to assess the effect of all risk factors on our business of the extent to which any one risk factor or compilation thereof may cause actual results to differ materially from those contained in any forward-looking statements. As forward-looking statements involve significant risks and uncertainties, caution should be exercised against placing undue reliance on such statements.

Such forward-looking statements may be expressed in a variety of ways, including the use of future and present tense language expressing expectations or predictions of future financial or business performance or conditions based on current performance and trends. Forward-looking statements are typically identified by words such as, "believe," "plan," "expect," "anticipate," "intend," "outlook," "estimate," "forecast," "will," "should," "project," "goal," and other similar words and expressions. These forward-looking statements involve certain risks and uncertainties. In addition to factors previously disclosed in our reports filed with the SEC, the following factors, among others, could cause actual results to differ materially from forward-looking statements or historical performance: changes in asset quality and credit risk; the inability to sustain revenue and earnings growth; changes in interest rates and capital markets; changes or errors in the methodologies, models, assumptions and estimates we use to prepare our financial statements, make business decisions and manage risks; inflation; inability to effectively grow and expand our customer bases; our ability to execute on key priorities, including successful completion of acquisitions and dispositions, business retention or expansion plans, strategic plans and attract, develop and retain key executives; and potential difficulties encountered in expanding into a new and remote geographic market; customer borrowing, repayment, investment and deposit practices; customer disintermediation; the introduction, withdrawal, success and timing of business and technology initiatives; economic conditions in the various regions in which we operate; competitive conditions, including increased competition through internet, mobile banking, fintech, and other non-traditional competitors; the inability to realize cost savings or revenues or to implement integration plans and other consequences associated with acquisitions and divestitures; the inability to originate and re-sell mortgage loans in accordance with business plans; our inability to effectively manage our economic exposure and GAAP earnings exposure to interest rate volatility, including availability of appropriate derivative financial investments needed for interest rate risk management purposes; economic conditions; interruption in or breach of security of our information systems; the failure of third parties and vendors to comply with their obligations to us, including related to care, control, and protection of such information; the evolution of various types of fraud or other criminal behavior to which we are exposed; integrity and functioning of products, information systems and services provided by third party external vendors; changes in tax rules and regulations or interpretations including, but not limited to, the recently enacted Tax Cuts and Jobs Act or tariffs implemented by the U.S. President; changes in or anticipated impact of, accounting policies, standards and interpretations; ability to maintain adequate liquidity to fund our operations; changes in asset valuations;the initiation of significant legal or regulatory proceedings against us and the outcome of any significant legal or regulatory proceeding including, but not limited to, actions by federal or state authorities and class action cases, new decisions that result in changes to previously settled law or regulation, and any unexpected court or regulatory rulings; and the impact, extent and timing of technological changes, capital management activities, and other actions of the OCC, the FRB, the Bureau of Consumer Financial Protection (formerly named the Consumer Financial Protection Bureau), the FDIC and legislative and regulatory actions and reforms.

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The risks identified here are not exclusive. Actual results may differ materially from those expressed or implied as a result of these risks and uncertainties, including, but not limited to, the risk factors and other uncertainties described in our Annual Report on Form 10-K (including MD&A section) for the year ended December 31, 2017, our subsequent 2018 Quarterly Reports on Form 10-Q's (including the risk factors and risk management discussions) and our other subsequent filings with the SEC, which are available on our corporate website at https://www.fnb-online.com/about-us/investor-relations-shareholder-services. We have included our web address as an inactive textual reference only. Information on our website is not part of this Report.

APPLICATION OF CRITICAL ACCOUNTING POLICIES

A description of our critical accounting policies is included in the Management’s Discussion and Analysis of Financial Condition and Results of Operations section of our 2017 Annual Report on Form 10-K filed with the SEC on February 28, 2018 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 December 31, 2017.

USE OF NON-GAAP FINANCIAL MEASURES AND KEY PERFORMANCE INDICATORS

To supplement our Consolidated Financial Statements presented in accordance with GAAP, we use certain non-GAAP financial measures, such as operating net income available to common stockholders, operating earnings per diluted common share, return on average tangible common equity, return on average tangible assets, tangible book value per common share, the ratio of tangible equity to tangible assets, the ratio of tangible common equity to tangible assets, efficiency ratio and net interest margin (FTE) to provide information useful to investors in understanding our operating performance and trends, and to facilitate comparisons with the performance of our peers. Management uses these measures internally to assess and better understand our underlying business performance and trends related to core business activities. The non-GAAP financial measures and key performance indicators we use may differ from the non-GAAP financial measures and key performance indicators other financial institutions use to assess their performance and trends.

These non-GAAP financial measures should be viewed as supplemental in nature, and not as a substitute for or superior to, our reported results prepared in accordance with GAAP. When non-GAAP financial measures are disclosed, the SEC's Regulation G requires: (i) the presentation of the most directly comparable financial measure calculated and presented in accordance with GAAP and (ii) a reconciliation of the differences between the non-GAAP financial measure presented and the most directly comparable financial measure calculated and presented in accordance with GAAP. Reconciliations of non-GAAP operating measures to the most directly comparable GAAP financial measures are included later in this report under the heading “Reconciliations of Non-GAAP Financial Measures and Key Performance Indicators to GAAP”.

Management believes charges such as merger expenses, branch consolidation costs and special one-time employee 401(k) contributions related to tax reform are not organic costs to run our operations and facilities. The merger expenses and branch consolidation charges principally represent expenses to satisfy contractual obligations of the acquired entity or closed branch without any useful ongoing benefit to us. These costs are specific to each individual transaction, and may vary significantly based on the size and complexity of the transaction. Similarly, gains derived from the sale of a business are not organic to our operations.

To provide more meaningful comparisons of net interest margin and efficiency ratio, we use net interest income on a taxable-equivalent basis in calculating net interest margin by increasing the interest income earned on tax-exempt assets (loans and investments) to make it fully equivalent to interest income earned on taxable investments (this adjustment is not permitted under GAAP).  Taxable equivalent amounts for the 2018 period were calculated using a federal income tax rate of 21% provided under the TCJA (effective January 1, 2018).  Amounts for the 2017 periods were calculated using the previously applicable statutory federal income tax rate of 35%.

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FINANCIAL SUMMARY

Net income available to common stockholders for the third quarter of 2018 was $98.8 million or $0.30 per diluted common share, compared to net income available to common stockholders for third quarter of 2017 of $75.7 million or $0.23 per diluted common share. On an operating basis, third quarter of 2018 net income available to common stockholders (non-GAAP) was $94.7 million, or $0.29 per diluted common share, excluding a $5.1 million gain recognized from the sale of Regency, compared to third quarter of 2017 net income available to common stockholders (non-GAAP) of $76.6 million, or $0.24 per diluted common share, excluding the impact of $1.4 million in merger-related expenses.

On August 31, 2018, we completed the sale of 100 percent of the issued and outstanding capital stock of Regency Finance Company to Mariner Finance, LLC in exchange for cash consideration of $142 million. This transaction was completed to accomplish several strategic objectives, including enhancing the credit risk profile of the consumer loan portfolio, offering additional liquidity and selling a non-strategic business segment that no longer fits with our core business.  The transaction included a reduction of $131.9 million in direct installment consumer loans, a net charge-off of $7.1 million for the mark to fair value on the Regency loans prior to sale with no associated provision impact, a write-off of $1.8 million of goodwill, and a reduction of branch/retail properties leased by FNB.  As a result of the sale, we recognized a gain on sale of $5.1 million during the third quarter.

Income Statement Highlights (Third quarter of 2018 compared to third quarter of 2017, except as noted)

• Net income available to common stockholders was $98.8 million, compared to $75.7 million.

• Operating net income available to common stockholders (non-GAAP) was $94.7 million, compared to $76.6 million.

• Earnings per diluted common share were $0.30, compared to $0.23.

• Operating earnings per diluted common share (non-GAAP) were $0.29, compared to $0.24.

• Total revenue increased 6.3% to $310 million, reflecting a 4.2% increase in net interest income and a 13.1% increase in non-interest income.

• Net interest income was $234.8 million, compared to $225.2 million.

• Net interest margin (FTE) (non-GAAP) declined 8 basis points to 3.36% from 3.44%, reflecting a 3 basis point decrease in the fully taxable equivalent adjustment related to the impact of tax reform. Regency contributed 8 basis points and 13 basis points, respectively.

• Non-interest income increased $8.7 million, or 13.1%. Excluding the Regency gain on sale, operating non-interest income increased $3.5 million or 5.4%, with increases in mortgage banking, wealth management and capital markets.

• Non-interest expense was $170.7 million, compared to $163.7 million.

• Non-interest expense decreased $12.3 million, or 6.7%, compared to the second quarter of 2018.

• Income tax expense increased $5.4 million, or 7.8%, primarily due to higher 2018 pre-tax income, partially offset by the lower tax rate in 2018.

• The efficiency ratio (non-GAAP) equaled 53.7%, compared to 53.1%.

• The annualized net charge-offs to total average loans ratio increased to 0.27%, compared to 0.24%. The third quarter of 2018 included 13 basis points of net charge-offs from the mark to fair value on the Regency loans prior to the sale, with no associated provision expense.

Balance Sheet Highlights (period-end balances, September 30, 2018 compared to December 31, 2017, unless otherwise indicated)

• Total assets were $32.6 billion, compared to $31.4 billion.

• Growth in total average loans was $1.1 billion, or 5.4%, with average commercial loan growth of $545.1 million, or 4.2%, and average consumer loan growth of $575.6 million, or 7.5%, from the same period last year.

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• Total average deposits grew $1.9 billion, or 9.1%, including an increase in average non-interest-bearing deposits of $439.4 million, or 7.9%, and an increase in average time deposits of $1.4 billion, or 37.9%, from the same period last year.

• The ratio of loans to deposits was 92.9%, compared to 93.7%.

• Total stockholders’ equity was $4.5 billion, compared to $4.4 billion, a slight increase of less than 3% since December 31, 2017, primarily driven by an increase in earnings partially offset by a decline in AOCI.

• There was improvement in the delinquency ratio in the originated portfolio from 0.88% to 0.79%.

• The ratio of the allowance for loan losses to total loans and leases was 0.81%, compared to 0.84%.

RESULTS OF OPERATIONS

Three Months Ended September 30, 2018 Compared to the Three Months Ended September 30, 2017

Net income available to common stockholders for the three months ended September 30, 2018 was $98.8 million or $0.30 per diluted common share, compared to net income available to common stockholders for the three months ended September 30, 2017 of $75.7 million or $0.23 per diluted common share. The third quarter of 2018 included a $5.1 million gain recognized from the sale of Regency. The third quarter of 2017 included merger-related expenses of $1.4 million.

Net interest income totaled $234.8 million, increasing $9.6 million or 4.2%. Non-interest income increased $8.7 million, or 13.1%, and non-interest expense increased $7.0 million, or 4.3%. Financial highlights are summarized below:

TABLE 1

	Three Months Ended September 30,				$			%
(in thousands, except per share data)	2018		2017		Change			Change
Net interest income	$	234,787	$	225,231	$	9,556		4.2	%
Provision for credit losses	15,975		16,768		(793		)	(4.7	)
Non-interest income	74,834		66,151		8,683			13.1
Non-interest expense	170,729		163,743		6,986			4.3
Income taxes	22,154		33,178		(11,024		)	(33.2	)
Net income	100,763		77,693		23,070			29.7
Less: Preferred stock dividends	2,010		2,010		—			—
Net income available to common stockholders	$	98,753	$	75,683	$	23,070		30.5	%
Earnings per common share – Basic	$	0.30	$	0.23	$	0.07		30.4	%
Earnings per common share – Diluted	0.30		0.23		0.07			30.4
Cash dividends per common share	0.12		0.12		—			—

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The following table presents selected financial ratios and other relevant data used to analyze our performance:

TABLE 2

	Three Months Ended September 30,
	2018			2017
Return on average equity	8.85		%	6.96		%
Return on average tangible common equity (2)	19.44		%	15.82		%
Return on average assets	1.23		%	1.00		%
Return on average tangible assets (2)	1.37		%	1.12		%
Book value per common share (1)	$	13.62		$	13.39
Tangible book value per common share (1) (2)	$	6.44		$	6.12
Equity to assets (1)	13.87		%	14.25		%
Tangible equity to tangible assets (1) (2)	7.25		%	7.24		%
Common equity to assets (1)	13.54		%	13.91		%
Tangible common equity to tangible assets (1) (2)	6.89		%	6.87		%
Average equity to average assets	13.94		%	14.32		%
Dividend payout ratio	39.71		%	51.56		%

(1) Period-end

(2) Non-GAAP

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

TABLE 3

	Three Months Ended September 30,
	2018								2017
(dollars in thousands)	Average Balance			Interest Income/ Expense			Yield/ Rate		Average Balance			Interest Income/ Expense			Yield/ Rate
Assets
Interest-earning assets:
Interest-bearing deposits with banks	$	46,588		$	345		2.93	%	$	117,602		$	320		1.08	%
Taxable investment securities (1)	5,310,719			30,467			2.29		4,913,122			24,763			2.02
Tax-exempt investment securities (1)(2)	1,030,743			9,090			3.53		812,305			8,515			4.19
Loans held for sale	47,846			723			6.03		139,693			2,091			5.97
Loans and leases (2)(3)	21,774,929			260,590			4.75		20,654,316			232,998			4.48
Total interest-earning assets (2)	28,210,825			301,215			4.24		26,637,038			268,687			4.01
Cash and due from banks	367,764								374,542
Allowance for credit losses	(180,387		)						(169,283		)
Premises and equipment	323,682								334,870
Other assets	3,680,919								3,733,497
Total assets	$	32,402,803							$	30,910,664
Liabilities
Interest-bearing liabilities:
Deposits:
Interest-bearing demand	$	9,324,789		16,492			0.70		$	9,376,003		9,338			0.40
Savings	2,573,673			1,636			0.25		2,480,626			792			0.13
Certificates and other time	5,256,660			20,047			1.51		3,812,916			8,857			0.92
Short-term borrowings	3,863,563			19,576			2.00		4,394,106			14,387			1.29
Long-term borrowings	627,524			5,277			3.34		658,495			4,909			2.96
Total interest-bearing liabilities	21,646,209			63,028			1.15		20,722,146			38,283			0.73
Non-interest-bearing demand	5,966,581								5,527,180
Other liabilities	274,005								234,358
Total liabilities	27,886,795								26,483,684
Stockholders’ equity	4,516,008								4,426,980
Total liabilities and stockholders’ equity	$	32,402,803							$	30,910,664
Excess of interest-earning assets over interest-bearing liabilities	$	6,564,616							$	5,914,892
Net interest income (FTE) (2)				238,187								230,404
Tax-equivalent adjustment				(3,400		)						(5,173		)
Net interest income				$	234,787							$	225,231
Net interest spread							3.09	%							3.28	%
Net interest margin (2)							3.36	%							3.44	%

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

(2) The interest income amounts are reflected on an FTE basis (non-GAAP), which adjusts for the tax benefit of income on certain tax-exempt loans and investments using the federal statutory tax rate of 21% in 2018 and 35% in 2017. The yield on earning assets and the net interest margin are presented on an FTE basis. We believe 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.

64

Net Interest Income

Net interest income on an FTE basis (non-GAAP) increased $7.8 million, or 3.4%, from $230.4 million for the third quarter of 2017 to $238.2 million for the third quarter of 2018. Average interest-earning assets of $28.2 billion increased $1.6 billion, or 5.9%, and average interest-bearing liabilities of $21.6 billion increased $924.1 million, or 4.5%, from 2017, due to organic growth in loans and deposits. The sale of Regency, which included $132 million of direct installment loans, closed on August 31, 2018. Our net interest margin FTE (non-GAAP) was 3.36% for the third quarter of 2018, compared to 3.44% for the same period of 2017, reflecting a 3 basis point decrease in the FTE adjustment related to the impact of tax reform combined with the effect of the sale of Regency, which contributed 8 basis points to the margin in the third quarter of 2018 compared to 13 basis points in the third quarter of 2017. The Federal Open Market Committee has increased the target Fed Funds rate by 100 basis points between September 30, 2017 and September 30, 2018.

The following table provides certain information regarding changes in net interest income on an FTE basis (non-GAAP) attributable to changes in the average volumes and yields earned on interest-earning assets and the average volume and rates paid for interest-bearing liabilities for the three months ended September 30, 2018, compared to the three months ended September 30, 2017:

TABLE 4

(in thousands)	Volume			Rate			Net
Interest Income (1)
Interest-bearing deposits with banks	$	(193	)	$	218		$	25
Securities (2)	4,095			2,184			6,279
Loans held for sale	(1,375		)	7			(1,368		)
Loans and leases (2)	10,937			16,655			27,592
Total interest income (2)	13,464			19,064			32,528
Interest Expense(1)
Deposits:
Interest-bearing demand	78			7,076			7,154
Savings	264			580			844
Certificates and other time	4,442			6,748			11,190
Short-term borrowings	(1,766		)	6,955			5,189
Long-term borrowings	(213		)	581			368
Total interest expense	2,805			21,940			24,745
Net change (2)	$	10,659		$	(2,876	)	$	7,783

(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 (non-GAAP) which adjusts for the tax benefit of income on certain tax-exempt loans and investments using the federal statutory tax rate of 21% in 2018 and 35% in 2017. We believe 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 (non-GAAP) of $301.2 million for the third quarter of 2018, increased $32.5 million or 12.1% from the same quarter of 2017, primarily due to increased interest-earning assets. During the third quarter of 2018, we recognized $5.9 million of incremental purchase accounting accretion and $1.5 million of cash recoveries, compared to $2.2 million and $4.3 million, respectively, in the third quarter of 2017. The increase in interest-earning assets was primarily driven by a $1.1 billion, or 5.4%, increase in average loans and leases, which reflects solid growth in the commercial and consumer loan portfolios. Average commercial loan growth totaled $545.1 million, or 4.2%, led by strong commercial activity in the Cleveland and Mid-Atlantic (Greater Baltimore-Washington D.C. markets) regions and continued growth in the equipment finance and asset-based lending businesses. Average consumer loan growth was $575.6 million, or 7.5%, as growth in indirect auto loans of $424.1 million, or 30.2%, and residential mortgage loans of $378.9 million, or 14.9%, was partially offset by declines in average direct installment loans of $82.2 million, or 4.2% and consumer lines of credit of $145.2 million, or 8.2%.Additionally, average securities increased $616.0 million, or 10.8%, as we took advantage of higher interest rates. The yield on

65

average interest-earning assets (non-GAAP) increased 23 basis points from the third quarter of 2017 to 4.24% for the third quarter of 2018.

Interest expense of $63.0 million for the third quarter of 2018 increased $24.7 million, or 64.6%, from the same quarter of 2017, due to an increase in rates paid on average interest-bearing liabilities and growth in average interest-bearing deposits over the same quarter of 2017. Average interest-bearing deposits increased $1.5 billion or 9.5%, while average non-interest-bearing deposits increased $439.4 million, or 7.9%. Organic growth in average time deposits, non-interest-bearing deposits, savings and money market balances was partially offset by a slight decline in interest checking accounts. The growth in non-interest-bearing deposits reflected successful efforts to attract new and larger corporate customers across our footprint.Average short-term borrowings decreased $530.5 million, or 12.1%, primarily as a result of decreases of $390.3 million in short-term FHLB advances, $79.8 million in federal funds purchased, $46.0 million in customer repurchase agreements and $14.4 million in short-term subordinated notes. Average long-term borrowings decreased $31.0 million, or 4.7%, resulting from the maturity of certain long-term FHLB advances. The rate paid on interest-bearing liabilities increased 42 basis points to 1.15% for the third quarter of 2018, due to changes in the funding mix combined with the interest rate increases made by the Federal Open Market Committee between September 30, 2017 and September 30, 2018.

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 loan and lease portfolio, after giving consideration to charge-offs and recoveries for the period. The following table presents information regarding the provision for credit losses and net charge-offs:

TABLE 5

	Three Months Ended September 30,						$			%
(dollars in thousands)	2018			2017			Change			Change
Provision for credit losses:
Originated	$	14,853		$	17,175		$	(2,322	)	(13.5	)%
Acquired	1,122			(407		)	1,529			n/m
Total provision for credit losses	$	15,975		$	16,768		$	(793	)	(4.7	)%
Net loan charge-offs:
Originated	$	14,157		$	13,033		$	1,124		8.6	%
Acquired	511			(582		)	1,093			n/m
Total net loan charge-offs	$	14,668		$	12,451		$	2,217		17.8	%
Net loan charge-offs (annualized) / total average loans and leases	0.27		%	0.24		%
Net originated loan charge-offs (annualized) / total average originated loans and leases	0.33		%	0.37		%

n/m - not meaningful

The provision for credit losses of $16.0 million during the third quarter of 2018 was down 4.7% from the same period of 2017, primarily due to the decrease in non-performing loans and lower organic loan growth. Net loan charge-offs were $14.7 million, an increase of $2.2 million. Included in reported net charge-offs for the third quarter was $7.1 million, or 0.13%, for the mark to fair value on Regency loans prior to sale, with no associated provision impact. 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.

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Non-Interest Income

The breakdown of non-interest income for the three months ended September 30, 2018 and 2017 is presented in the following table:

TABLE 6

	Three Months Ended September 30,				$			%
(in thousands)	2018		2017		Change			Change
Service charges	$	31,922	$	32,212	$	(290	)	(0.9	)%
Trust services	6,395		5,748		647			11.2
Insurance commissions and fees	5,001		5,029		(28		)	(0.6	)
Securities commissions and fees	4,491		4,038		453			11.2
Capital markets income	5,100		2,822		2,278			80.7
Mortgage banking operations	5,962		5,437		525			9.7
Bank owned life insurance	4,399		3,123		1,276			40.9
Net securities gains	—		2,777		(2,777		)	(100.0	)
Other	11,564		4,965		6,599			132.9
Total non-interest income	$	74,834	$	66,151	$	8,683		13.1	%

Total non-interest income increased $8.7 million, to $74.8 million for the third quarter of 2018, a 13.1% increase from the same period of 2017. The variances in significant individual non-interest income items are further explained in the following paragraphs, with the overall increase reflecting the $5.1 million gain on the sale of Regency and continued growth in our fee-based businesses. Excluding this significant item influencing earnings, non-interest income increased $3.5 million, or 5.4%.

Trust services of $6.4 million for the third quarter of 2018 increased $0.6 million, or 11.2%, from the same period of 2017, primarily driven by strong organic revenue production. The market value of assets under management increased $656.6 million, or 14.7%, from September 30, 2017 to $5.3 billion at September 30, 2018, with the increase almost entirely attributable to organic growth.

Capital markets income of $5.1 million for the third quarter of 2018 increased $2.3 million, or 80.7%, from the same period of 2017, primarily attributable to higher levels of commercial swap activity across FNB's footprint, particularly in our North Carolina market.

Mortgage banking operations income of $6.0 million for the third quarter of 2018 increased $0.5 million, or 9.7%, from the same period of 2017. During the third quarter of 2018, we sold $322.2 million of originated residential mortgage loans, which was slightly lower than the $324.7 million for the same period of 2017. While we continue to see compressed margins due to competitive pressures for both retail and correspondent, we were able to increase income by improving the mix of retail loans sold versus correspondent loans. Retail loans have a greater gain on sale margin than correspondent loans. Additionally, $0.3 million of the increase in the third quarter of 2018 compared to the same period of 2017 was due to the income from continued growth in our mortgage servicing portfolio.

Income from BOLI of $4.4 million for the third quarter of 2018 increased $1.3 million, or 40.9%, from $3.1 million in the same period of 2017, primarily due to death benefits received.

Other non-interest income was $11.6 million and $5.0 million for the third quarter of 2018 and 2017, respectively. The increase was primarily due to the $5.1 million gain on the sale of Regency during the third quarter of 2018.

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The following table presents non-interest income excluding the significant item for the three months ended September 30, 2018 and 2017:

TABLE 7

	Three Months Ended September 30,					$			%
(in thousands)	2018			2017		Change			Change
Total non-interest income, as reported	$	74,834		$	66,151	$	8,683		13.1	%
Significant item:
Gain on sale of subsidiary	(5,135		)	—		(5,135		)
Total non-interest income, excluding significant item(1)	$	69,699		$	66,151	$	3,548		5.4	%

(1) Non-GAAP

Non-Interest Expense

The breakdown of non-interest expense for the three months ended September 30, 2018 and 2017 is presented in the following table:

TABLE 8

	Three Months Ended September 30,				$			%
(in thousands)	2018		2017		Change			Change
Salaries and employee benefits	$	89,535	$	82,383	$	7,152		8.7	%
Net occupancy	14,219		13,723		496			3.6
Equipment	13,593		13,711		(118		)	(0.9	)
Amortization of intangibles	3,805		4,805		(1,000		)	(20.8	)
Outside services	17,176		15,439		1,737			11.3
FDIC insurance	8,821		9,183		(362		)	(3.9	)
Bank shares and franchise taxes	3,237		2,814		423			15.0
Merger-related	—		1,381		(1,381		)	(100.0	)
Other	20,343		20,304		39			0.2
Total non-interest expense	$	170,729	$	163,743	$	6,986		4.3	%

Total non-interest expense of $170.7 million for the third quarter of 2018 increased $7.0 million, a 4.3% increase from the same period of 2017. The variances in the individual non-interest expense items are further explained in the following paragraphs.

Salaries and employee benefits of $89.5 million for the third quarter of 2018 increased $7.2 million, or 8.7%, from the same period of 2017, primarily as a result of employees added in our expanded operations in our southeastern markets, combined with increasing the minimum wage for FNB hourly employees in response to tax reform and normal merit increases during 2018.

Amortization of intangibles expense of $3.8 million for the third quarter of 2018 decreased $1.0 million, or 20.8%, from the third quarter of 2017, due to the completion of amortization for a core deposit intangible from a prior acquisition.

Outside services expense of $17.2 million for the third quarter of 2018 increased $1.7 million, or 11.3%, from the same period of 2017, primarily due to increases of $1.0 million in legal expense, $0.4 million in data processing and information technology services, and $0.3 million in consulting fees, combined with other various miscellaneous increases.

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The following table presents non-interest expense excluding significant items for the three months ended September 30, 2018 and 2017:

TABLE 9

	Three Months Ended September 30,					$		%
(in thousands)	2018		2017			Change		Change
Total non-interest expense, as reported	$	170,729	$	163,743		$	6,986	4.3	%
Significant items:
Merger-related	—		(1,381		)	1,381
Total non-interest expense, excluding significant items(1)	$	170,729	$	162,362		$	8,367	5.2	%

(1) Non-GAAP

Income Taxes

The following table presents information regarding income tax expense and certain tax rates:

TABLE 10

	Three Months Ended September 30,
(dollars in thousands)	2018			2017
Income tax expense	$	22,154		$	33,178
Effective tax rate	18.0		%	29.9		%
Statutory tax rate	21.0		%	35.0		%

Both periods’ tax rates are lower than the federal statutory tax rates of 21% in 2018 and 35% in 2017, due to the tax benefits primarily resulting from tax-exempt income on investments and loans, tax credits and income from BOLI. Additionally, in the third quarter of 2018, we recorded a net favorable adjustment of $1.9 million to our provisional deferred tax remeasurement related to the TCJA. The effective tax rate for the current quarter reflects the 21% federal statutory tax and the recording of the final adjustments to the provisional deferred tax remeasurement, while the year-ago quarter was impacted by elevated tax credit recognition. The lower statutory corporate tax rate in 2018 is partially offset by changes to the deductibility of certain items such as FDIC insurance premiums.

Nine Months EndedSeptember 30, 2018 Compared to the Nine Months EndedSeptember 30, 2017

Net income available to common stockholders for the nine months ended September 30, 2018 was $266.7 million or $0.82 per diluted common share, compared to $169.0 million or $0.57 per diluted common share for the nine months ended September 30, 2017. The first nine months of 2018 included the impact of costs related to branch consolidations of $6.6 million, gain on the sale of Regency of $5.1 million and a $0.9 million discretionary 401(k) contribution made following tax reform. Of the $6.6 million of branch consolidation costs, $3.8 million was included in non-interest expense and $3.7 million was reflected as a loss on fixed assets reducing non-interest income. The first nine months of 2017 included $2.6 million of merger-related net securities gains and merger-related expense of $55.5 million. Operating earnings per diluted common share (non-GAAP) was $0.82 for the first nine months of 2018 compared to $0.69 for the nine months ended September 30, 2017. The effective tax rate for the first nine months of 2018 was 19.0%, compared to 28.4% in the first nine months of 2017. The first nine months of 2018 was impacted by the TCJA, including a change to a 21% statutory rate, while the first nine months of 2017 was impacted by merger-related expenses. Average diluted common shares outstanding increased 29.0 million shares, or 9.8%, to 325.7 million shares for the first nine months of 2018, primarily as a result of the YDKN acquisition, for which we issued 111.6 million shares on March 11, 2017. The major categories of the Income Statement and their respective impact to the increase (decrease) in net income are presented in the following table:

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TABLE 11

	Nine Months Ended September 30,				$			%
(in thousands, except per share data)	2018		2017		Change			Change
Net interest income	$	700,247	$	616,398	$	83,849		13.6	%
Provision for credit losses	46,024		44,374		1,650			3.7
Non-interest income	207,226		187,345		19,881			10.6
Non-interest expense	524,825		515,012		9,813			1.9
Income taxes	63,893		69,279		(5,386		)	(7.8	)
Net income	272,731		175,078		97,653			55.8
Less: Preferred stock dividends	6,030		6,030		—			—
Net income available to common stockholders	$	266,701	$	169,048	$	97,653		57.8	%
Earnings per common share – Basic	$	0.82	$	0.57	$	0.25		43.9	%
Earnings per common share – Diluted	0.82		0.57		0.25			43.9
Cash dividends per common share	0.36		0.36		—			—

The following table presents selected financial ratios and other relevant data used to analyze our performance:

TABLE 12

	Nine Months Ended September 30,
	2018			2017
Return on average equity	8.16		%	5.93		%
Return on average tangible common equity (2)	18.22		%	13.10		%
Return on average assets	1.14		%	0.82		%
Return on average tangible assets (2)	1.27		%	0.93		%
Book value per common share (1)	$	13.62		$	13.39
Tangible book value per common share (1) (2)	$	6.44		$	6.12
Equity to assets (1)	13.87		%	14.25		%
Tangible equity to tangible assets (1) (2)	7.25		%	7.24		%
Common equity to assets (1)	13.54		%	13.91		%
Tangible common equity to tangible assets (1) (2)	6.89		%	6.87		%
Average equity to average assets	13.99		%	13.86		%
Dividend payout ratio	44.05		%	61.27		%

(1) Period-end

(2) Non-GAAP

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

TABLE 13          

	Nine Months Ended September 30,
	2018								2017
(dollars in thousands)	Average Balance			Interest Income/ Expense			Yield/ Rate		Average Balance			Interest Income/ Expense			Yield/ Rate
Assets
Interest-earning assets:
Interest-bearing deposits with banks	$	65,882		$	972		1.97	%	$	97,122		$	660		0.91	%
Federal funds sold	—			—			—		1,509			9			0.72
Taxable investment securities (1)	5,192,707			86,341			2.22		4,773,606			72,373			2.02
Tax-exempt investment securities (1)(2)	992,781			26,095			3.50		666,469			20,833			4.17
Loans held for sale	53,404			2,401			6.00		82,254			3,960			6.43
Loans and leases (2) (3)	21,460,794			758,873			4.73		19,084,962			624,575			4.37
Total interest-earning assets (2)	27,765,568			874,682			4.21		24,705,922			722,410			3.91
Cash and due from banks	362,098								336,303
Allowance for credit losses	(181,154		)						(165,543		)
Premises and equipment	330,698								319,901
Other assets	3,674,471								3,274,305
Total assets	$	31,951,681							$	28,470,888
Liabilities
Interest-bearing liabilities:
Deposits:
Interest-bearing demand	$	9,333,557		41,637			0.60		$	8,703,870		22,426			0.34
Savings	2,576,869			4,164			0.22		2,495,632			1,954			0.10
Certificates and other time	4,904,114			49,892			1.36		3,503,637			23,100			0.88
Short-term borrowings	3,981,880			53,192			1.78		3,831,883			32,020			1.11
Long-term borrowings	646,229			15,727			3.25		625,010			13,343			2.85
Total interest-bearing liabilities	21,442,649			164,612			1.02		19,160,032			92,843			0.65
Non-interest-bearing demand	5,780,770								5,140,016
Other liabilities	258,685								225,219
Total liabilities	27,482,104								24,525,267
Stockholders’ equity	4,469,577								3,945,621
Total liabilities and stockholders’ equity	$	31,951,681							$	28,470,888
Excess of interest-earning assets over interest-bearing liabilities	$	6,322,919							$	5,545,890
Net interest income (FTE) (2)				710,070								629,567
Tax-equivalent adjustment				(9,823		)						(13,169		)
Net interest income				$	700,247							$	616,398
Net interest spread							3.19	%							3.26	%
Net interest margin (2)							3.42	%							3.41	%

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

(2) The interest income amounts are reflected on an FTE basis (non-GAAP), which adjusts for the tax benefit of income on certain tax-exempt loans and investments using the federal statutory tax rate of 21% in 2018 and 35% in 2017. The yield on earning assets and the net interest margin are presented on an FTE basis. We believe 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.

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Net Interest Income

Net interest income on an FTE basis (non-GAAP) increased $80.5 million, or 12.8%, from $629.6 million for the first nine months of 2017 to $710.1 million for the first nine months of 2018. Average interest-earning assets of $27.8 billion increased $3.1 billion or 12.4% and average interest-bearing liabilities of $21.4 billion increased $2.3 billion or 11.9% from the first nine months of 2017 due to our expanded banking footprint in our southeastern markets and organic growth in loans and deposits. Our net interest margin FTE (non-GAAP) was 3.42% for the first nine months of 2018, compared to 3.41% for the same period of 2017, reflecting higher yields on earning assets mostly offset by higher rates paid on deposits and borrowings. The Federal Open Market Committee has increased the target Fed Funds rate by 100 basis points between September 30, 2017 and September 30, 2018.

The following table provides certain information regarding changes in net interest income on an FTE basis (non-GAAP) attributable to changes in the average volumes and yields earned on interest-earning assets and the average volume and rates paid for interest-bearing liabilities for the nine months ended September 30, 2018, compared to the nine months ended September 30, 2017:

TABLE 14

(in thousands)	Volume			Rate			Net
Interest Income(1)
Interest-bearing deposits with banks	$	(213	)	$	525		$	312
Federal funds sold	(4		)	(5		)	(9		)
Securities (2)	15,205			4,025			19,230
Loans held for sale	(1,355		)	(204		)	(1,559		)
Loans and leases (2)	77,338			56,960			134,298
Total interest income (2)	90,971			61,301			152,272
Interest Expense(1)
Deposits:
Interest-bearing demand	2,342			16,869			19,211
Savings	402			1,808			2,210
Certificates and other time	11,635			15,157			26,792
Short-term borrowings	1,434			19,738			21,172
Long-term borrowings	583			1,801			2,384
Total interest expense	16,396			55,373			71,769
Net change (2)	$	74,575		$	5,928		$	80,503

(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 (non-GAAP) which adjusts for the tax benefit of income on certain tax-exempt loans and investments using the federal statutory tax rate of 21% in 2018 and 35% in 2017. We believe 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 (non-GAAP) of $874.7 million for the first nine months of 2018, increased $152.3 million or 21.1% from the same quarter of 2017, primarily due to increased interest-earning assets. During the first nine months of 2018, we recognized $16.5 million of incremental purchase accounting accretion and $12.8 million of cash recoveries, compared to $5.7 million and $5.8 million, respectively, in the first nine months of 2017. The increase in interest-earning assets was primarily driven by a $2.4 billion or 12.4% increase in average loans and leases, which reflects the benefit of our expanded banking footprint and successful sales management, and includes $1.1 billion or 5.4% of organic growth. Additionally, average securities increased $745.4 million or 13.7%, primarily as a result of the securities portfolio acquired from YDKN and the subsequent repositioning of that portfolio. The yield on average interest-earning assets (non-GAAP) increased 30 basis points from the first nine months of 2017 to 4.21% for the first nine months of 2018. The 30 basis point increase in earning asset yields was driven by an increase in yields in both investments and loans including higher purchase accounting accretion and cash recoveries on acquired loans.  

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Interest expense of $164.6 million for the first nine months of 2018 increased $71.8 million, or 77.3%, from the same quarter of 2017 due to an increase in rates paid and growth in average interest-bearing liabilities, as interest-bearing deposits and borrowings increased over the same quarter of 2017. Average interest-bearing deposits increased $2.1 billion or 14.4%, which reflects the benefit of our expanded banking footprint in our southeastern markets and organic growth in transaction deposits. Average short-term borrowings increased $150.0 million or 3.9%, primarily as a result of an increase of $210.6 million in federal funds purchased, partially offset by decreases of $30.7 million in short-term FHLB borrowings and $27.7 million in customer repurchase agreements. Average long-term borrowings increased $21.2 million, or 3.4%, primarily as a result of increases of $16.4 million and $14.6 million in junior subordinated debt and subordinated debt, respectively, assumed in the YDKN transaction, partially offset by a decrease of $9.3 million in long-term FHLB borrowings. Subsequent to the close of the acquisition, we remixed the long–term position based on our funding needs. The rate paid on interest-bearing liabilities increased 37 basis points to 1.02% for the first nine months of 2018, due to the Federal Open Market Committee interest rate increases and changes in the funding mix.

Provision for Credit Losses

The following table presents information regarding the provision for credit losses and net charge-offs:

TABLE 15

	Nine Months Ended September 30,						$			%
(dollars in thousands)	2018			2017			Change			Change
Provision for credit losses:
Originated	$	44,659		$	46,050		$	(1,391	)	(3.0	)%
Acquired	1,365			(1,676		)	3,041			(181.4	)
Total provision for credit losses	$	46,024		$	44,374		$	1,650		3.7	%
Net loan charge-offs:
Originated	$	40,030		$	33,607		$	6,423		19.1	%
Acquired	3,493			(1,190		)	4,683			(393.5	)
Total net loan charge-offs	$	43,523		$	32,417		$	11,106		34.3	%
Net loan charge-offs (annualized) / total average loans and leases	0.27		%	0.23		%
Net originated loan charge-offs (annualized) / total average originated loans and leases	0.33		%	0.33		%

The provision for credit losses of $46.0 million during the first nine months of 2018 increased $1.7 million from the same period of 2017, primarily due to an increase of $3.0 million in the provision for the acquired portfolio, partially offset by a decrease of $1.4 million in the provision for the originated portfolio, which was primarily attributable to lower non-performing loans during the first nine months of 2018 compared to the year-ago period. Net loan charge-offs of $43.5 million for the first nine months of 2018 increased $11.1 million from the year-ago period, primarily due to $13.4 million, or 8 basis points, relating to both the sale of a small portfolio of non-performing loans in the second quarter of 2018 and the sale of Regency in the third quarter of 2018. Both actions had no associated provision expense. 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.

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Non-Interest Income

The breakdown of non-interest income for the nine months ended September 30, 2018 and 2017 is presented in the following table:

TABLE 16

	Nine Months Ended September 30,				$			%
(dollars in thousands)	2018		2017		Change			Change
Service charges	$	93,113	$	88,883	$	4,230		4.8	%
Trust services	19,312		17,210		2,102			12.2
Insurance commissions and fees	14,703		14,517		186			1.3
Securities commissions and fees	13,336		11,548		1,788			15.5
Capital markets income	16,168		11,673		4,495			38.5
Mortgage banking operations	17,431		14,400		3,031			21.0
Bank owned life insurance	10,761		8,368		2,393			28.6
Net securities gains	31		5,895		(5,864		)	(99.5	)
Other	22,371		14,851		7,520			50.6
Total non-interest income	$	207,226	$	187,345	$	19,881		10.6	%

Total non-interest income increased $19.9 million, to $207.2 million for the first nine months of 2018, a 10.6% increase from the same period of 2017. The variances in significant individual non-interest income items are further explained in the following paragraphs. Excluding the $5.1 million gain on the sale of Regency and $3.7 million loss on fixed assets related to branch consolidations in 2018 and the $2.6 million merger-related net securities gains in 2017, non-interest income increased $21.0 million, or 11.4%, attributable to the expanded operations in North and South Carolina and continued growth of our fee-based businesses of wealth management, capital markets, mortgage banking and insurance.

Service charges on loans and deposits of $93.1 million for the first nine months of 2018 increased $4.2 million, or 4.8%, from the same period of 2017. The increase was driven by the expanded customer base in our southeastern markets, combined with organic growth in loans and deposit accounts.

Trust services of $19.3 million for the first nine months of 2018 increased $2.1 million, or 12.2%, from the same period of 2017 primarily driven by strong organic revenue production. The market value of assets under management increased $656.6 million, or 14.7%, to $5.3 billion from September 30, 2017 to September 30, 2018, with the increase almost entirely attributable to organic growth in accounts and services.

Securities commissions and fees of $13.3 million for the first nine months of 2018 increased 15.5% from the same period of 2017. This increase reflects the benefit of expanded operations in our southeastern markets and increased brokerage activity.

Capital markets income of $16.2 million for the first nine months of 2018 increased $4.5 million or 38.5% from $11.7 million for 2017, reflecting continued solid contributions from commercial swap activity across our footprint, combined with increased syndication fees and international banking activity.

Mortgage banking operations income of $17.4 million for the first nine months of 2018 increased $3.0 million, or 21.0%, from the same period of 2017. During the first nine months of 2018, we sold $891.9 million of residential mortgage loans, a 27.3% increase compared to $700.5 million for the same period of 2017. However, sold loan margins have been lower in both retail and correspondent loans due to competitive pressure and the mix of loans sold.

Income from BOLI of $10.8 million for the first nine months of 2018 increased $2.4 million, or 28.6%, from $8.4 million in the same period of 2017, due to investing in new policies during the third and fourth quarters of 2017 and death benefits received.

Net securities gains were $0.03 million for the first nine months of 2018, compared to $5.9 million for the first nine months of 2017. The gains in 2017 related to the sale of certain acquired YDKN securities after the closing of the acquisition.

74

Other non-interest income was $22.4 million and $14.9 million for the first nine months of 2018 and 2017, respectively. During the first nine months of 2018, dividends on non-marketable equity securities increased $4.8 million, gains on the sale of repossessed assets increased $1.4 million and SBA loan gain on sale and servicing-related income increased $1.0 million compared to the year-ago period and we recognized a $5.1 million gain on the sale of Regency. These items were partially offset by a $3.7 million loss on fixed assets recorded in 2018 related to the branch consolidations.

The following table presents non-interest income excluding significant items for the first nine months ended September 30, 2018 and 2017:

TABLE 17

	Nine Months Ended September 30,						$			%
(in thousands)	2018			2017			Change			Change
Total non-interest income, as reported	$	207,226		$	187,345		$	19,881		10.6	%
Significant items:
Gain on sale of subsidiary	(5,135		)	—			(5,135		)
Loss on fixed assets related to branch consolidations	3,677			—			3,677
Merger-related net securities gains	—			(2,609		)	2,609
Total non-interest income, excluding significant items(1)	$	205,768		$	184,736		$	21,032		11.4	%

(1) Non-GAAP

Non-Interest Expense

The breakdown of non-interest expense for the nine months ended September 30, 2018 and 2017 is presented in the following table:

TABLE 18

	Nine Months Ended September 30,				$			%
(dollars in thousands)	2018		2017		Change			Change
Salaries and employee benefits	$	277,532	$	240,860	$	36,672		15.2	%
Net occupancy	45,936		39,132		6,804			17.4
Equipment	41,241		35,761		5,480			15.3
Amortization of intangibles	11,834		12,716		(882		)	(6.9	)
Outside services	48,946		41,965		6,981			16.6
FDIC insurance	26,822		23,946		2,876			12.0
Bank shares and franchise taxes	9,929		8,536		1,393			16.3
Merger-related	—		55,459		(55,459		)	(100.0	)
Other	62,585		56,637		5,948			10.5
Total non-interest expense	$	524,825	$	515,012	$	9,813		1.9	%

Total non-interest expense of $524.8 million for the first nine months of 2018 increased $9.8 million, a 1.9% increase from the same period of 2017. Excluding significant items influencing earnings of $3.8 million, non-interest expense increased $61.5 million or 13.4%. The variances in the individual non-interest expense items are further explained in the following paragraphs, with most increases relating at least partially to costs associated with expanded operations from the acquisition of YDKN in March of 2017 and $2.9 million of branch consolidation costs in the first nine months of 2018, compared to merger-related expenses of $55.5 million in the same period of 2017.

Salaries and employee benefits of $277.5 million for the first nine months of 2018 increased $36.7 million or 15.2% from the same period of 2017. The increase was primarily due to employees added in our expanded operations in our southeastern markets and increasing the minimum wage for FNB hourly employees in response to tax reform, combined with 2018 merit increases and higher benefit costs including items such as a large medical insurance claim of $2.6 million, restricted stock

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awards, a $1.0 million payroll tax rate adjustment plus a discretionary 401(k) contribution of $0.9 million following tax reform in 2018.

Net occupancy and equipment expense of $87.2 million for the first nine months of 2018 increased $12.3 million, or 16.4%, from the same period of 2017, primarily due to our expanded operations in our southeastern markets, branch consolidation costs of $2.9 million and our continued investment in new technology. The increased technology costs include upgrades to meet customer needs via the utilization of electronic delivery channels, such as online and mobile banking, investment in infrastructure to support our larger company and expenditures deemed necessary by management to maintain proficiency and compliance with regulatory requirements.

Outside services expense of $48.9 million for the first nine months of 2018 increased $7.0 million, or 16.6%, from the same period of 2017, primarily due to increases of $2.3 million in legal expense, $1.2 million in data processing and information technology services and $1.0 million in security services, combined with various other miscellaneous increases. These increases were driven primarily by the expanded operations in our southeastern markets.

FDIC insurance of $26.8 million for the first nine months of 2018 increased $2.9 million, or 12.0%, from the same period of 2017, primarily due to a higher assessment base in 2018 resulting from merger and acquisition activity in 2017, combined with growth in loans.

Bank shares and franchise tax expense of $9.9 million for the first nine months of 2018 increased $1.4 million, or 16.3%, from $8.5 million in the first nine months of 2017, primarily due to an increase in our capital base from the YDKN acquisition.

Other non-interest expense was $62.6 million and $56.6 million for the first nine months of 2018 and 2017, respectively. During the first nine months of 2018, loan-related expense increased by $3.3 million, OREO increased by $1.7 million, marketing expense increased by $1.6 million, historic and other tax credit investments expense increased by $0.5 million and telephone expense increased by $0.4 million. These increases were primarily related to the expanded operations in North and South Carolina and branch consolidation activities. Other non-interest expense for the 2018 period also included branch consolidation costs of $2.9 million.

The following table presents non-interest expense excluding significant items for the nine months ended September 30, 2018 and 2017:

TABLE 19

	Nine Months Ended September 30,						$			%
(in thousands)	2018			2017			Change			Change
Total non-interest expense, as reported	$	524,825		$	515,012		$	9,813		1.9	%
Significant items:
Discretionary 401(k) contribution	(874		)	—			(874		)
Branch consolidations - salaries and benefits	(45		)	—			(45		)
Branch consolidations - occupancy and equipment	(1,609		)	—			(1,609		)
Branch consolidations - other	(1,285		)	—			(1,285		)
Merger-related	—			(55,459		)	55,459
Total non-interest expense, excluding significant items(1)	$	521,012		$	459,553		$	61,459		13.4	%

(1) Non-GAAP

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Income Taxes

The following table presents information regarding income tax expense and certain tax rates:

TABLE 20

	Nine Months Ended September 30,
(dollars in thousands)	2018			2017
Income tax expense	$	63,893		$	69,279
Effective tax rate	19.0		%	28.4		%
Statutory tax rate	21.0		%	35.0		%

Both periods’ tax rates are lower than the federal statutory tax rates of 21% in 2018 and 35% in 2017, due to the tax benefits primarily resulting from tax-exempt income on investments and loans, tax credits and income from BOLI. Additionally, in 2018, we recorded a net favorable adjustment of $1.9 million to our provisional deferred tax remeasurement related to the TCJA. The effective tax rate in the first nine months of 2018 was impacted by the TCJA, including a change to a 21% federal statutory rate and the recording of final adjustments to the provisional deferred tax remeasurement, while the year-ago period was impacted by merger-related expenses. The lower statutory corporate tax rate in 2018 is partially offset by changes to the deductibility of certain items such as FDIC insurance premiums.

FINANCIAL CONDITION

The following table presents our condensed Consolidated Balance Sheets:

TABLE 21

(dollars in thousands)	September 30, 2018		December 31, 2017		$ Change			% Change
Assets
Cash and cash equivalents	$	437,853	$	479,443	$	(41,590	)	(8.7	)%
Securities	6,505,239		6,006,830		498,409			8.3
Loans held for sale	42,083		92,891		(50,808		)	(54.7	)
Loans and leases, net	21,661,522		20,823,386		838,136			4.0
Goodwill and other intangibles	2,329,831		2,341,263		(11,432		)	(0.5	)
Other assets	1,641,067		1,673,822		(32,755		)	(2.0	)
Total Assets	$	32,617,595	$	31,417,635	$	1,199,960		3.8	%
Liabilities and Stockholders’ Equity
Deposits	$	23,499,986	$	22,399,725	$	1,100,261		4.9	%
Borrowings	4,306,429		4,346,510		(40,081		)	(0.9	)
Other liabilities	286,316		262,206		24,110			9.2
Total liabilities	28,092,731		27,008,441		1,084,290			4.0
Stockholders’ equity	4,524,864		4,409,194		115,670			2.6
Total Liabilities and Stockholders’ Equity	$	32,617,595	$	31,417,635	$	1,199,960		3.8	%

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Non-Performing Assets

Following is a summary of total non-performing loans and leases, by class:

TABLE 22

(in thousands)	September 30, 2018		December 31, 2017		$ Change			% Change
Commercial real estate	$	23,991	$	31,399	$	(7,408	)	(23.6	)%
Commercial and industrial	32,142		22,740		9,402			41.3
Commercial leases	5,526		1,574		3,952			251.1
Other	1,000		1,000		—			—
Total commercial loans and leases	62,659		56,713		5,946			10.5
Direct installment	14,657		16,725		(2,068		)	(12.4	)
Residential mortgages	16,007		16,409		(402		)	(2.4	)
Indirect installment	2,263		2,435		(172		)	(7.1	)
Consumer lines of credit	6,635		5,834		801			13.7
Total consumer loans	39,562		41,403		(1,841		)	(4.4	)
Total non-performing loans and leases	$	102,221	$	98,116	$	4,105		4.2	%

Non-performing assets decreased $0.8 million, from $138.7 million at December 31, 2017 to $137.9 million at September 30, 2018. This reflects decreases of $4.9 million in OREO and $1.2 million in TDRs, partially offset by an increase of $5.3 million in non-accrual loans. The decrease in OREO was primarily attributable to the sale of two commercial properties totaling $2.4 million during the first nine months of 2018. The decrease in TDRs is related to the sale of the Regency portfolio, which resulted in a decrease of $2.7 million in TDRs. The increase in non-accrual loans is attributable to the migration of a few commercial loans, partially offset by the commercial note sale that occurred during the second quarter of 2018.

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Following is a summary of performing, non-performing and non-accrual TDRs, by class:

TABLE 23

(in thousands)	Performing		Non- Performing		Non- Accrual		Total
Originated
September 30, 2018
Commercial real estate	$	—	$	105	$	2,174	$	2,279
Commercial and industrial	—		567		106		673
Total commercial loans	—		672		2,280		2,952
Direct installment	10,735		6,701		3,746		21,182
Residential mortgages	4,172		9,897		1,741		15,810
Indirect installment	—		—		8		8
Consumer lines of credit	2,056		1,790		846		4,692
Total consumer loans	16,963		18,388		6,341		41,692
Total TDRs	$	16,963	$	19,060	$	8,621	$	44,644
December 31, 2017
Commercial real estate	$	92	$	—	$	3,870	$	3,962
Commercial and industrial	3,085		—		601		3,686
Total commercial loans	3,177		—		4,471		7,648
Direct installment	10,890		7,758		3,197		21,845
Residential mortgages	3,659		10,638		2,161		16,458
Indirect installment	—		195		14		209
Consumer lines of credit	1,812		1,582		629		4,023
Total consumer loans	16,361		20,173		6,001		42,535
Total TDRs	$	19,538	$	20,173	$	10,472	$	50,183
Acquired
September 30, 2018
Commercial real estate	$	—	$	2,613	$	43	$	2,656
Commercial and industrial	—		—		35		35
Total commercial loans	—		2,613		78		2,691
Direct installment	—		68		—		68
Residential mortgages	—		—		—		—
Indirect installment	—		—		—		—
Consumer lines of credit	67		581		13		661
Total consumer loans	67		649		13		729
Total TDRs	$	67	$	3,262	$	91	$	3,420
December 31, 2017
Commercial real estate	$	—	$	2,651	$	—	$	2,651
Commercial and industrial	—		—		—		—
Total commercial loans	—		2,651		—		2,651
Direct installment	15		71		—		86
Residential mortgages	—		—		—		—
Indirect installment	—		—		—		—
Consumer lines of credit	251		586		234		1,071
Total consumer loans	266		657		234		1,157
Total TDRs	$	266	$	3,308	$	234	$	3,808

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Allowance for Credit Losses

The allowance for credit losses of $177.9 million at September 30, 2018 increased $2.5 million, or 1.4%, from December 31, 2017, primarily in support of growth in originated loans and leases and a small increase in originated criticized commercial loans. The provision for credit losses during the nine months ended September 30, 2018 was $46.0 million, which covered net charge-offs and supported organic loan growth. The amount of provision expense that resulted from the small increase in originated criticized commercial loans was offset by a provision benefit received through a decline in overall delinquency levels in the third quarter of 2018. Net charge-offs were $43.5 million during the nine months ended September 30, 2018, compared to $32.4 million during the nine months ended September 30, 2017, with the increase primarily due to $13.4 million, or 8 basis points, relating to the sale of a small portfolio of non-performing loans in the second quarter of 2018 and the sale of Regency in the third quarter of 2018. The allowance for credit losses as a percentage of non-performing loans for the total portfolio decreased from 179% as of December 31, 2017 to 174% as of September 30, 2018, reflecting a larger increase in the level of non-performing loans relative to the increase in the allowance for credit losses during the nine-month period.

Following is a summary of supplemental statistical ratios pertaining to our 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, Business Combinations. Also see Note 5, Loans and Leases, of the Notes to Consolidated Financial Statements (Unaudited).

TABLE 24

	At or For the Three Months Ended
	September 30, 2018		December 31, 2017		September 30, 2017
Non-performing loans / total originated loans and leases	0.54	%	0.57	%	0.69	%
Non-performing loans + OREO / total originated loans and leases + OREO	0.73	%	0.81	%	0.91	%
Allowance for credit losses (originated loans) / total originated loans and leases	1.00	%	1.10	%	1.12	%
Net charge-offs on originated loans and leases (annualized) / total average originated loans and leases	0.33	%	0.35	%	0.37	%

Deposits

As a bank holding company, our primary source of funds is deposits. These deposits are provided by businesses, municipalities and individuals located within the markets served by our Community Banking segment.

Following is a summary of deposits:

TABLE 25

(in thousands)	September 30, 2018		December 31, 2017		$ Change			% Change
Non-interest-bearing demand	$	6,018,852	$	5,720,030	$	298,822		5.2	%
Interest-bearing demand	9,519,704		9,571,038		(51,334		)	(0.5	)
Savings	2,513,679		2,488,178		25,501			1.0
Certificates and other time deposits	5,447,751		4,620,479		827,272			17.9
Total deposits	$	23,499,986	$	22,399,725	$	1,100,261		4.9	%

Total deposits increased from December 31, 2017, primarily as a result of growth in non-interest-bearing demand balances and certificates and other time deposits. The growth reflects heightened deposit-gathering efforts focused on attracting new customer relationships through targeted promotional interest rates on 13-month, 19-month and 25-month certificates of deposit, combined with deepening relationships with existing customers through internal lead generation efforts. Relationship-based transaction deposits, which are comprised of demand (non-interest-bearing and interest-bearing) and savings accounts (including money market savings), also increased in total over this period. Generating growth in these deposits remains a key focus for us and will help us manage to lower levels of short-term borrowings.

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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 our 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. We seek to maintain a strong capital base to support our growth and expansion activities, to provide stability to current operations and to promote public confidence.

In accordance with the terms of our merger with Yadkin Financial Corporation, we issued 111,619,622 shares of our common stock on March 11, 2017.

We have an effective shelf registration statement filed with the SEC. Pursuant to this registration statement, we 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.

Capital management is a continuous process, with capital plans and stress testing for FNB and FNBPA updated at least 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, we issue shares initially acquired by us as treasury stock under our various benefit plans. We may continue to grow through acquisitions, which can potentially impact our capital position. We may issue additional preferred or common stock in order to maintain our well-capitalized status.

FNB 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 FNB 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 minimum leverage ratio (as defined). Failure to meet minimum capital requirements could lead to initiation of certain mandatory, and possibly additional discretionary actions, by regulators that, if undertaken, could have a direct material effect on our Consolidated Financial Statements, dividends and future merger and acquisition activity. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, FNB 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. FNB’s and FNBPA’s capital amounts and classifications are also subject to qualitative judgments by the regulators about components, risk weightings and other factors.

As of September 30, 2018, the most recent notification from the federal banking agencies categorized FNB 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. Our management believes that, as of September 30, 2018 and December 31, 2017, FNB and FNBPA met all “well-capitalized” requirements to which each of them was subject.

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Following are the capital amounts and related ratios as of September 30, 2018 and December 31, 2017 for FNB and FNBPA:

TABLE 26

	Actual				Well-Capitalized Requirements				Minimum Capital Requirements plus Capital Conservation Buffer
(dollars in thousands)	Amount		Ratio		Amount		Ratio		Amount		Ratio
As of September 30, 2018
F.N.B. Corporation
Total capital	$	2,813,920	11.5	%	$	2,456,625	10.0	%	$	2,425,917	9.9	%
Tier 1 capital	2,337,416		9.5		1,965,300		8.0		1,934,592		7.9
Common equity tier 1	2,230,534		9.1		1,596,806		6.5		1,566,099		6.4
Leverage	2,337,416		7.8		1,507,943		5.0		1,206,354		4.0
Risk-weighted assets	24,566,253
FNBPA
Total capital	2,666,288		10.9	%	2,458,411		10.0	%	2,427,681		9.9	%
Tier 1 capital	2,485,996		10.1		1,966,729		8.0		1,935,999		7.9
Common equity tier 1	2,405,996		9.8		1,597,967		6.5		1,567,237		6.4
Leverage	2,485,996		8.3		1,501,877		5.0		1,201,502		4.0
Risk-weighted assets	24,584,112
As of December 31, 2017
F.N.B. Corporation
Total capital	$	2,666,272	11.4	%	$	2,340,362	10.0	%	$	2,164,835	9.3	%
Tier 1 capital	2,184,571		9.3		1,872,290		8.0		1,696,763		7.3
Common equity tier 1	2,077,689		8.9		1,521,235		6.5		1,345,708		5.8
Leverage	2,184,571		7.6		1,440,797		5.0		1,152,638		4.0
Risk-weighted assets	23,403,622
FNBPA
Total capital	2,504,191		10.7	%	2,332,593		10.0	%	2,157,649		9.3	%
Tier 1 capital	2,332,892		10.0		1,866,075		8.0		1,691,130		7.3
Common equity tier 1	2,252,892		9.7		1,516,186		6.5		1,341,241		5.8
Leverage	2,332,892		8.1		1,432,604		5.0		1,146,084		4.0
Risk-weighted assets	23,325,934

In accordance with Basel III, the implementation of capital requirements is transitional and phases-in from January 1, 2015 through January 1, 2019. The minimum capital requirements plus capital conservation buffer, which are presented for each period above based on the phase-in schedule, represent the minimum requirements needed to avoid limitations on distributions of dividends and certain discretionary bonus payments. Our management believes that FNB and FNBPA will continue to meet all “well-capitalized” requirements after Basel III is completely phased-in.

Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010 (Dodd-Frank 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 significantly change the system of regulatory oversight as described in more detail under Part I, Item 1, “Business - Government Supervision and Regulation” included in our 2017 Annual Report on Form 10-K as filed with the SEC on February 28, 2018. 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 us or across the financial services industry.

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LIQUIDITY

Our goal in liquidity management is to satisfy the cash flow requirements of customers and the operating cash needs of FNB with cost-effective funding. Our Board of Directors has established an Asset/Liability Management Policy 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. Our Board of Directors has also established a Contingency Funding Policy to guide management in addressing stressed liquidity conditions. These policies designate our Asset/Liability Committee as the body responsible for meeting these objectives. The ALCO, which is comprised of members of executive management, reviews liquidity on a continuous basis and approves significant changes in strategies that affect Balance Sheet or cash flow positions. Liquidity is centrally managed daily by our 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. FNB 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 if we 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. In addition, through one of our subsidiaries, we regularly issue subordinated notes, which are guaranteed by FNB. Cash on hand at the parent has been managed by various strategies over the last few years.  One significant management strategy resulted in the sale of 100 percent of the issued and outstanding capital stock of Regency to Mariner Finance, LLC in exchange for cash consideration of $142 million. This transaction closed on August 31, 2018 and was the primary driver of the parent’s cash position increasing by $105.0 million from $165.7 million at December 31, 2017 to $270.7 million at September 30, 2018. This transaction accomplished several strategic objectives, including offering additional liquidity. Other potential strategies that management employs include strong earnings, increasing earnings retention rate and capital actions.

Management believes our cash levels are appropriate given the current environment. Two metrics that are used to gauge the adequacy of the parent company’s cash position are the LCR and 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 MCH is defined as the number of months of corporate expenses and dividends that can be covered by the cash on hand and was impacted by the sale of Regency and the YDKN acquisition.

The LCR and MCH ratios are presented in the following table:

TABLE 27

(dollars in thousands)	September 30, 2018	December 31, 2017	Internal limit
Liquidity coverage ratio	2.3 times	1.8 times	> 1 time
Months of cash on hand	16.5 months	10.2 months	> 12 months

The sale of Regency has resulted in MCH and LCR ratios that are in compliance with our Policy. The MCH ratio had fallen below our internal limit due to the YDKN acquisition in March 2017, as YDKN did not manage to a similar ratio and held only a minimal amount of cash on hand at their holding company.

Our liquidity position has been positively impacted by our ability to generate growth in relationship-based accounts. Organic growth in low-cost transaction deposits was complemented by management’s strategy of heightened deposit gathering efforts focused on attracting new customer relationships and deepening relationships with existing customers, in part through internal lead generation efforts leveraging data analytics capabilities.  Total deposits were $23.5 billion at September 30, 2018, an increase of $1.1 billion, or 6.6% annualized from December 31, 2017. Total non-interest demand deposit accounts grew by $298.8 million, or 7.0% annualized, and savings accounts grew by $25.5 million, or 1.4% annualized. Growth in time deposits was $827.3 million, or 23.9% annualized. These increases were offset by slightly lower business demand deposit and interest checking balances which decreased $51.3 million, or 0.7% annualized.

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FNBPA has significant unused wholesale credit availability sources that include the availability to borrow from the FHLB, the FRB, correspondent bank lines, access to brokered deposits and multiple other channels. In addition to credit availability, FNBPA also possesses salable unpledged government and agency securities that could be utilized to meet funding needs. The ALCO Policy minimum guideline level for salable unpledged government and agency securities is 3.0%.

The following table presents certain information relating to FNBPA’s credit availability and salable unpledged securities:

TABLE 28

(dollars in thousands)	September 30, 2018			December 31, 2017
Unused wholesale credit availability	$	9,874,088		$	8,189,379
Unused wholesale credit availability as a % of FNBPA assets	30.3		%	26.3		%
Salable unpledged government and agency securities	$	2,276,869		$	2,231,812
Salable unpledged government and agency securities as a % of FNBPA assets	7.0		%	7.2		%

Another metric for measuring liquidity risk is the liquidity gap analysis. The following liquidity gap analysis as of September 30, 2018 compares the difference between our cash flows from existing earning assets and interest-bearing 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 (8.3)% and (5.8)% as of September 30, 2018 and December 31, 2017, respectively. Management calculates this ratio at least quarterly and it is reviewed monthly by ALCO.

TABLE 29

(dollars in thousands)	Within 1 Month			2-3 Months			4-6 Months			7-12 Months			Total 1 Year
Assets
Loans	$	504,319		$	912,331		$	1,191,771		$	2,346,922		$	4,955,343
Investments	123,496			167,400			223,591			448,840			963,327
	627,815			1,079,731			1,415,362			2,795,762			5,918,670
Liabilities
Non-maturity deposits	179,434			358,869			538,306			1,076,614			2,153,223
Time deposits	1,013,905			581,978			747,436			1,226,265			3,569,584
Borrowings	2,655,204			16,270			173,897			46,480			2,891,851
	3,848,543			957,117			1,459,639			2,349,359			8,614,658
Period Gap (Assets - Liabilities)	$	(3,220,728	)	$	122,614		$	(44,277	)	$	446,403		$	(2,695,988	)
Cumulative Gap	$	(3,220,728	)	$	(3,098,114	)	$	(3,142,391	)	$	(2,695,988	)
Cumulative Gap to Total Assets	(9.9		)%	(9.5		)%	(9.6		)%	(8.3		)%

In addition, the ALCO regularly monitors various liquidity ratios and stress scenarios of our liquidity position. The stress scenarios forecast that adequate funding will be available even under severe conditions. Management believes we have sufficient liquidity available to meet our 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. We are primarily exposed to interest rate risk inherent in our lending and deposit-taking activities as a financial intermediary. To succeed in this capacity, we offer an extensive variety of financial products to meet the diverse needs of our customers. These products sometimes contribute to interest rate risk for us when product groups do not complement one another. For example, depositors may want short-term deposits, while borrowers desire long-term loans.

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Changes in market interest rates may result in changes in the fair value of our 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. We use 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.

We use an asset/liability model to measure our interest rate risk. Interest rate risk measures we utilize include earnings simulation, EVE and gap analysis. 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, our 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 us with a comprehensive view of our interest rate risk profile.

The following repricing gap analysis as of September 30, 2018 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.

TABLE 30

(dollars in thousands)	Within 1 Month			2-3 Months			4-6 Months			7-12 Months			Total 1 Year
Assets
Loans	$	9,696,914		$	745,691		$	787,623		$	1,526,153		$	12,756,381
Investments	128,754			179,471			372,089			438,351			1,118,665
	9,825,668			925,162			1,159,712			1,964,504			13,875,046
Liabilities
Non-maturity deposits	6,148,871			—			—			—			6,148,871
Time deposits	1,112,582			581,539			745,468			1,221,796			3,661,385
Borrowings	3,117,588			642,150			157,966			14,620			3,932,324
	10,379,041			1,223,689			903,434			1,236,416			13,742,580
Off-balance sheet	(100,000		)	555,000			—			—			455,000
Period Gap (assets – liabilities + off-balance sheet)	$	(653,373	)	$	256,473		$	256,278		$	728,088		$	587,466
Cumulative Gap	$	(653,373	)	$	(396,900	)	$	(140,622	)	$	587,466
Cumulative Gap to Assets	(2.3		)%	(1.4		)%	(0.5		)%	2.1		%

The twelve-month cumulative repricing gap to total assets was 2.1% and 3.0% as of September 30, 2018 and December 31, 2017, respectively. The positive cumulative gap positions indicate that we have 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 slight change in the cumulative repricing gap at September 30, 2018 compared to December 31, 2017, is primarily related to growth and changes in the mix of loans, deposits and borrowings. The growth in the CD portfolio was offset with the increased cash flow of the indirect portfolio, the increased repricing of adjustable loans and the funding of long term FHLB advances.

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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.

Utilizing net interest income simulations, 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 and EVE calculated under the particular rate scenario versus the net interest income and EVE that was calculated assuming market rates as of September 30, 2018. Using a static Balance Sheet structure, the measures do not reflect all of management's potential counteractions.

The following table presents an analysis of the potential sensitivity of our net interest income and EVE to changes in interest rates using rate shocks:

TABLE 31

	September 30, 2018		December 31, 2017		ALCO Limits
Net interest income change (12 months):
+ 300 basis points	3.3	%	3.0	%	n/a
+ 200 basis points	2.3	%	2.3	%	(5.0	)%
+ 100 basis points	1.3	%	1.3	%	(5.0	)%
- 100 basis points	(3.2	)%	(3.9	)%	(5.0	)%
Economic value of equity:
+ 300 basis points	8.3	%	(5.9	)%	(25.0	)%
+ 200 basis points	5.7	%	(3.7	)%	(15.0	)%
+ 100 basis points	2.4	%	(1.2	)%	(10.0	)%
- 100 basis points	0.5	%	(2.6	)%	(10.0	)%

We also model rate scenarios which move all rates gradually over twelve months (Rate Ramps) and model scenarios that gradually change the shape of the yield curve. Assuming a static Balance Sheet, a +300 basis point Rate Ramp increases net interest income (12 months) by 2.4% at September 30, 2018 and 2.0% at December 31, 2017.

Our 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 our interest rate risk position. As mentioned earlier, the growth in transaction deposits provides funding that is less interest rate-sensitive than short-term time deposits and wholesale borrowings. On the lending side, we regularly sell long-term fixed-rate residential mortgages to the secondary market and have been successful in the origination of consumer and commercial loans with short-term repricing characteristics. Total variable and adjustable-rate loans were 57.0% and 56.6% of total loans as of September 30, 2018 and December 31, 2017, respectively. As of September 30, 2018, 79.2% of these loans, or 45.1% of total loans, are tied to the Prime or one-month LIBOR rates. The investment portfolio is used, in part, to manage our interest rate risk position. Finally, we have made use of interest rate swaps to commercial borrowers (commercial swaps) to manage our interest rate risk position as the commercial swaps effectively increase adjustable-rate loans. As of September 30, 2018, the commercial swaps totaled $2.7 billion of notional principal, with $610.8 million in notional swap principal originated during the first nine months of 2018. The success of the aforementioned tactics has resulted in a moderately asset-sensitive position. For additional information regarding interest rate swaps, see Note 9 in this Report.

We desired to remain modestly asset-sensitive during the first nine months of 2018. A number of management actions and market occurrences resulted in the slight increase in the asset sensitivity of our interest rate risk position during the period. The increase was primarily due to management's actions with the timing of funding loan and investment growth, as well as successful efforts to extend maturities in certificate of deposit activity and continued strong commercial loan interest rate swap activity.

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We recognize 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 our experience, business plans, economic and market trends and available industry data. While management believes that its methodology for developing such assumptions is 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.

RISK MANAGEMENT

As a financial institution, we take on a certain amount of risk in every business decision, transaction and activity. Our Board of Directors and senior management have identified seven major categories of risk: credit risk, market risk, liquidity risk, reputational risk, operational risk, legal and compliance risk and strategic risk. In its oversight role of our risk management function, the Board of Directors focuses on the strategies, analyses and conclusions of management relating to identifying, understanding and managing risks so as to optimize total stockholder value, while balancing prudent business and safety and soundness considerations.

The Board of Directors adopted a risk appetite statement that defines acceptable risk levels or risk limits under which we seek to operate in order to optimize returns, while managing risk. As such, the board monitors a host of risk metrics from both business and operational units, as well as by risk category, to provide insight into how our performance aligns with our risk appetite. The risk appetite dashboard is reviewed periodically by the Board of Directors and senior management to ensure performance alignment with our risk appetite, and where appropriate, makes adjustments to applicable business strategies and tactics where risks approach our desired risk tolerance limits.

We support our risk management process through a governance structure involving our Board of Directors and senior management. The joint Risk Committee of our Board of Directors and the FNBPA Board of Directors helps ensure that business decisions are executed within appropriate risk tolerances. The Risk Committee has oversight responsibilities with respect to the following:

• identification, measurement, assessment and monitoring of enterprise-wide risk;

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

• review and assessment of our policies and practices to manage our 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 our Board of Directors and the Risk Management Council, which is the senior management level committee responsible for risk management. Risk appetite is an integral element of our business and capital planning processes through our Board Risk Committee and Risk Management Council. We use our risk appetite processes to promote appropriate alignment of risk, capital and performance tactics, while also considering risk capacity and appetite constraints from both financial and non-financial risks. Our top-down risk appetite process serves as a limit for undue risk-taking for bottom-up planning from our various business functions. Our Board Risk Committee, in collaboration with our Risk Management Council, approves our risk appetite on an annual basis, or more frequently, as needed to reflect changes in the risk environment, with the goal of ensuring that our risk appetite remains consistent with our strategic plans and business operations, regulatory environment and our shareholders' expectations. Reports relating to our risk appetite and strategic plans, and our ongoing monitoring thereof, are regularly presented to our various management level risk oversight and planning committees and periodically reported up through our Board Risk Committee.

As noted above, we have 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 FNB, evaluating and approving appropriate remediation efforts to address identified operational risks and providing periodic reports concerning operational risks to the Risk Management Council. The Risk Management Council reports on a regular basis to the Risk Committee of our Board of Directors regarding our enterprise-wide risk profile and other significant risk management issues. Our Chief Risk Officer is responsible for the design and implementation of our enterprise-wide risk management strategy and framework through the Compliance Department and the Information and Cyber Security

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Department, both of which report to the Chief Risk Officer, and ensures the coordinated and consistent implementation of risk management initiatives and strategies on a day-to-day basis. Our Compliance Department, which reports to the Chief Risk Officer, is responsible for developing policies and procedures and monitoring compliance with applicable laws and regulations. Our Information and Cyber Security Department is responsible for maintaining a risk assessment of our information and cyber security risks and ensuring appropriate controls are in place to manage and control such risks, including designing appropriate testing plans to ensure the integrity of information and cyber security controls. Further, our audit function performs an independent assessment of our internal controls environment and plays an integral role in testing the operation of the internal controls systems and reporting findings to management and our Audit Committee. Both the Risk Committee and Audit Committee of our Board of Directors regularly report on risk-related matters to the full Board of Directors. In addition, both the Risk Committee of our Board of Directors and our Risk Management Council regularly assess our enterprise-wide risk profile and provide guidance on actions needed to address key and emerging risk issues.

The Board of Directors believes that our enterprise-wide risk management process is effective and enables the Board of Directors to:

• assess the quality of the information we receive;

• understand the businesses, investments and financial, accounting, legal, regulatory and strategic considerations and the risks that we face;

• oversee and assess how senior management evaluates risk; and

• assess appropriately the quality of our enterprise-wide risk management process.

RECONCILIATIONS OF NON-GAAP FINANCIAL MEASURES AND KEY PERFORMANCE INDICATORS TO GAAP

Reconciliations of non-GAAP operating measures and key performance indicators discussed in this Report to the most directly comparable GAAP financial measures are included in the following tables.

TABLE 32

Operating Net Income Available to Common Stockholders

	Three Months Ended September 30,						Nine Months Ended September 30,
(dollars in thousands)	2018			2017			2018			2017
Net income available to common stockholders	$	98,753		$	75,683		$	266,701		$	169,048
Merger-related expense	—			1,381			—			55,459
Tax benefit of merger-related expense	—			(483		)	—			(18,481		)
Merger-related net securities gains	—			—			—			(2,609		)
Tax expense of merger-related net securities gains	—			—			—			913
Discretionary 401(k) contribution	—			—			874			—
Tax benefit of discretionary 401(k) contribution	—			—			(184		)	—
Gain on sale of subsidiary	(5,135		)	—			(5,135		)	—
Tax expense of gain on sale of subsidiary	1,078			—			1,078			—
Branch consolidation costs	—			—			6,616			—
Tax benefit of branch consolidation costs	—			—			(1,389		)	—
Operating net income available to common stockholders (non-GAAP)	$	94,696		$	76,581		$	268,561		$	204,330

The table above shows how operating net income available to common stockholders (non-GAAP) is derived from amounts reported in our financial statements. We believe charges such as merger expenses, branch consolidation costs and special one-time employee 401(k) contributions related to tax reform are not organic costs to run our operations and facilities. The merger expenses and branch consolidation charges principally represent expenses to satisfy contractual obligations of the acquired entity or closed branch without any useful ongoing benefit to us. These costs are specific to each individual transaction, and may vary significantly based on the size and complexity of the transaction. Similarly, gains derived from the sale of a business are not organic to our operations.

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TABLE 33

Operating Earnings per Diluted Common Share

	Three Months Ended September 30,					Nine Months Ended September 30,
	2018			2017		2018			2017
Net income per diluted common share	$	0.30		$	0.23	$	0.82		$	0.57
Merger-related expense	—			0.01		—			0.19
Tax benefit of merger-related expense	—			—		—			(0.06		)
Merger-related net securities gains	—			—		—			(0.01		)
Tax expense of merger-related net securities gains	—			—		—			—
Discretionary 401(k) contribution	—			—		—			—
Tax benefit of discretionary 401(k) contribution	—			—		—			—
Gain on sale of subsidiary	(0.02		)	—		(0.02		)	—
Tax expense of gain on sale of subsidiary	0.01			—		0.01			—
Branch consolidation costs	—			—		0.02			—
Tax benefit of branch consolidation costs	—			—		(0.01		)	—
Operating earnings per diluted common share (non-GAAP)	$	0.29		$	0.24	$	0.82		$	0.69

TABLE 34

Return on Average Tangible Common Equity

	Three Months Ended September 30,						Nine Months Ended September 30,
(dollars in thousands)	2018			2017			2018			2017
Net income available to common stockholders (annualized)	$	391,790		$	300,266		$	356,579		$	226,017
Amortization of intangibles, net of tax (annualized)	11,926			12,392			12,499			11,051
Tangible net income available to common stockholders (annualized) (non-GAAP)	$	403,716		$	312,658		$	369,078		$	237,068
Average total stockholders’ equity	$	4,516,008		$	4,426,980		$	4,469,577		$	3,945,621
Less: Average preferred stockholders' equity	(106,882		)	(106,882		)	(106,882		)	(106,882		)
Less: Average intangibles (1)	(2,332,926		)	(2,344,077		)	(2,336,627		)	(2,028,377		)
Average tangible common equity (non-GAAP)	$	2,076,200		$	1,976,021		$	2,026,068		$	1,810,362
Return on average tangible common equity (non-GAAP)	19.44		%	15.82		%	18.22		%	13.10		%

(1)Excludes loan servicing rights.

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TABLE 35

Return on Average Tangible Assets

	Three Months Ended September 30,						Nine Months Ended September 30,
(dollars in thousands)	2018			2017			2018			2017
Net income (annualized)	$	399,766		$	308,237		$	364,640		$	234,078
Amortization of intangibles, net of tax (annualized)	11,926			12,392			12,499			11,051
Tangible net income (annualized) (non-GAAP)	$	411,692		$	320,629		$	377,139		$	245,129
Average total assets	$	32,402,803		$	30,910,664		$	31,951,681		$	28,470,888
Less: Average intangibles (1)	(2,332,926		)	(2,344,077		)	(2,336,627		)	(2,028,377		)
Average tangible assets (non-GAAP)	$	30,069,877		$	28,566,587		$	29,615,054		$	26,442,511
Return on average tangible assets (non-GAAP)	1.37		%	1.12		%	1.27		%	0.93		%

(1)Excludes loan servicing rights.

TABLE 36

Tangible Book Value per Common Share

	Three Months Ended September 30,
(in thousands, except per share data)	2018			2017
Total stockholders’ equity	$	4,524,864		$	4,435,921
Less: Preferred stockholders’ equity	(106,882		)	(106,882		)
Less: Intangibles (1)	(2,329,830		)	(2,351,707		)
Tangible common equity (non-GAAP)	$	2,088,152		$	1,977,332
Ending common shares outstanding	324,275,186			323,301,548
Tangible book value per common share (non-GAAP)	$	6.44		$	6.12

 (1)Excludes loan servicing rights.

TABLE 37

Tangible equity to tangible assets (period-end)

	Three Months Ended September 30,
(dollars in thousands)	2018			2017
Total stockholders' equity	$	4,524,864		$	4,435,921
Less:  Intangibles(1)	(2,329,830		)	(2,351,707		)
Tangible equity (non-GAAP)	$	2,195,034		$	2,084,214
Total assets	$	32,617,595		$	31,123,295
Less:  Intangibles(1)	(2,329,830		)	(2,351,707		)
Tangible assets (non-GAAP)	$	30,287,765		$	28,771,588
Tangible equity / tangible assets (period-end) (non-GAAP)	7.25		%	7.24		%

(1) Excludes loan servicing rights.

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TABLE 38

Tangible common equity / tangible assets (period-end)

	Three Months Ended September 30,
(dollars in thousands)	2018			2017
Total stockholders' equity	$	4,524,864		$	4,435,921
Less:  Preferred stockholders' equity	(106,882		)	(106,882		)
Less:  Intangibles (1)	(2,329,830		)	(2,351,707		)
Tangible common equity (non-GAAP)	$	2,088,152		$	1,977,332
Total assets	$	32,617,595		$	31,123,295
Less:  Intangibles(1)	(2,329,830		)	(2,351,707		)
Tangible assets (non-GAAP)	$	30,287,765		$	28,771,588
Tangible common equity / tangible assets (period-end) (non-GAAP)	6.89		%	6.87		%

 (1) Excludes loan servicing rights.

TABLE 39

Efficiency Ratio

	Three Months Ended September 30,						Nine Months Ended September 30,
(dollars in thousands)	2018			2017			2018			2017
Non-interest expense	$	170,729		$	163,743		$	524,825		$	515,012
Less: Amortization of intangibles	(3,805		)	(4,805		)	(11,834		)	(12,716		)
Less: OREO expense	(1,492		)	(1,421		)	(5,092		)	(3,412		)
Less: Merger-related expense	—			(1,381		)	—			(55,459		)
Less: Discretionary 401(k) contribution	—			—			(874		)	—
Less: Branch consolidation costs	—			—			(2,939		)	—
Adjusted non-interest expense	$	165,432		$	156,136		$	504,086		$	443,425
Net interest income	$	234,787		$	225,231		$	700,247		$	616,398
Taxable equivalent adjustment	3,400			5,173			9,823			13,169
Non-interest income	74,834			66,151			207,226			187,345
Less: Net securities gains	—			(2,777		)	(31		)	(5,895		)
Less: Gain on sale of subsidiary	(5,135		)	—			(5,135		)	—
Less: Branch consolidation costs	—			—			3,677			—
Adjusted net interest income (FTE) + non-interest income	$	307,886		$	293,778		$	915,807		$	811,017
Efficiency ratio (FTE) (non-GAAP)	53.73		%	53.15		%	55.04		%	54.68		%

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

The information called for by this item is provided in the Market Risk section of "Management’s Discussion and Analysis of Financial Condition and Results of Operations," which is included in Item 2 of this Report, 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 our 2017 Annual Report on Form 10-K as filed with the SEC on February 28, 2018.

91

ITEM 4. CONTROLS AND PROCEDURES

EVALUATION OF DISCLOSURE CONTROLS AND PROCEDURES. FNB’s management, with the participation of our principal executive and financial officers, evaluated our 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, our 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, our 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 us in the reports we file 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 our management, including our principal executive officer and principal financial officer, as appropriate to allow timely decisions regarding required disclosure.

LIMITATIONS ON THE EFFECTIVENESS OF CONTROLS. FNB’s management, including the CEO and the CFO, does not expect that our 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 FNB 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 our internal controls over financial reporting that occurred during our fiscal quarter ended September 30, 2018, 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, our internal controls over financial reporting.

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 10 of the Notes to the Consolidated Financial Statements, which is incorporated herein by reference in response to this Item.

ITEM 1A. RISK FACTORS

For information regarding risk factors that could affect our results of operations, financial condition and liquidity, see the risk factors disclosed in the “Risk Factors” section of our Annual Report on Form 10-K for the year ended December 31, 2017. See also Part I, Item 2 (Management’s Discussion and Analysis) of this Report.

There are no material changes from any of the risk factors previously disclosed in our 2017 Annual Report on Form 10-K as filed with the SEC on February 28, 2018.

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.

92

ITEM 5. OTHER INFORMATION

NONE

ITEM 6.    EXHIBITS

Exhibit Index

Exhibit Number	Description
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 September 30, 2018, formatted in XBRL: (i) the Consolidated Balance Sheets, (ii) the Consolidated Statements of Income, (iii) the Consolidated Statements of Comprehensive Income, (iv) the Consolidated Statements of Stockholders’ Equity, (v) the Consolidated Statements of Cash Flows and (vi) the Notes to Consolidated Financial Statements. (filed herewith).

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:	November 7, 2018	/s/ Vincent J. Delie, Jr.
		Vincent J. Delie, Jr.
		Chairman, President and Chief Executive Officer
		(Principal Executive Officer)
Dated:	November 7, 2018	/s/ Vincent J. Calabrese, Jr.
		Vincent J. Calabrese, Jr.
		Chief Financial Officer
		(Principal Financial Officer)
Dated:	November 7, 2018	/s/ James L. Dutey
		James L. Dutey
		Corporate Controller
		(Principal Accounting Officer)

93

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 September 30, 2018 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: November 7, 2018	/s/ Vincent J. Delie, Jr.
	Vincent J Delie, Jr. Chairman, President and Chief Executive Officer

EX-31.2

EXHIBIT 31.2

CERTIFICATION OF CHIEF EXECUTIVE 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 September 30, 2018 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: November 7, 2018	/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., Chairman, 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 September 30, 2018 (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: November 7, 2018	/s/ Vincent J. Delie, Jr.
	Vincent J Delie, Jr. Chairman, 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 September 30, 2018 (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: November 7, 2018	/s/ Vincent J. Calabrese Jr.
	Vincent J. Calabrese Jr. Chief Financial Officer

XML

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2018	Oct. 31, 2018
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2018
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q3
Trading Symbol	FNB
Entity Registrant Name	FNB CORP/PA/
Entity Central Index Key	0000037808
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		324,296,105
Entity Emerging Growth Company	false
Entity Small Business	false

XML

Consolidated Balance Sheets - USD ($) $ in Thousands		Sep. 30, 2018	Dec. 31, 2017
Assets
Cash and due from banks		$ 397,268	$ 408,718
Interest bearing deposits with banks		40,585	70,725
Cash and Cash Equivalents		437,853	479,443
Securities available for sale		3,298,894	2,764,562
Debt securities held to maturity (fair value of $3,032,947 and $3,218,379)		3,206,345	3,242,268
Loans held for sale (includes $24,943 and $56,458 measured at fair value)	[1]	42,083	92,891
Loans and leases, net of unearned income of $4,926 and $50,680		21,839,403	20,998,766
Allowance for credit losses		(177,881)	(175,380)
Net Loans and Leases		21,661,522	20,823,386
Premises and equipment, net		323,244	336,540
Goodwill		2,249,541	2,249,188
Core deposit and other intangible assets, net		80,290	92,075
Bank owned life insurance		533,991	526,818
Other assets		783,832	810,464
Total Assets		32,617,595	31,417,635
Liabilities
Non-interest-bearing demand		6,018,852	5,720,030
Interest-bearing demand		9,519,704	9,571,038
Savings		2,513,679	2,488,178
Certificates and other time deposits		5,447,751	4,620,479
Total Deposits		23,499,986	22,399,725
Short-term borrowings		3,679,380	3,678,337
Long-term borrowings		627,049	668,173
Other liabilities		286,316	262,206
Total Liabilities		28,092,731	27,008,441
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 - 326,081,395 and 325,095,055 shares		3,263	3,253
Additional paid-in capital		4,046,168	4,033,567
Retained earnings		516,865	367,658
Accumulated other comprehensive loss		(126,840)	(83,052)
Treasury stock – 1,806,209 and 1,629,915 shares at cost		(21,474)	(19,114)
Total Stockholders’ Equity		4,524,864	4,409,194
Total Liabilities and Stockholders’ Equity		$ 32,617,595	$ 31,417,635

[1] Amount represents loans for which we have elected the fair value option. See Note 18.

XML

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands		Sep. 30, 2018	Dec. 31, 2017
Statement of Financial Position [Abstract]
Securities held to maturity, fair value		$ 3,032,947	$ 3,218,379
Loans held for sale, fair value	[1]	24,943	56,458
Unearned income on loans		$ 4,926	$ 50,680
Preferred stock, par value (in dollars per share)		$ 0.01	$ 0.01
Preferred stock, liquidation preference per share (in dollars 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 (in dollars per share)		$ 0.01	$ 0.01
Common stock, shares authorized		500,000,000	500,000,000
Common stock, shares issued		326,081,395	325,095,055
Treasury stock, shares		1,806,209	1,629,915

[1] Amount represents loans for which we have elected the fair value option. See Note 18.

XML

Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Interest Income
Loans and leases, including fees	$ 259,744	$ 232,834	$ 756,733	$ 622,554
Securities:
Taxable	30,467	24,763	86,341	72,258
Tax-exempt	7,259	5,597	20,813	13,675
Dividends	0	0	0	85
Other	345	320	972	669
Total Interest Income	297,815	263,514	864,859	709,241
Interest Expense
Deposits	38,175	18,987	95,693	47,480
Short-term borrowings	19,576	14,387	53,192	32,020
Long-term borrowings	5,277	4,909	15,727	13,343
Total Interest Expense	63,028	38,283	164,612	92,843
Net Interest Income	234,787	225,231	700,247	616,398
Provision for credit losses	15,975	16,768	46,024	44,374
Net Interest Income After Provision for Credit Losses	218,812	208,463	654,223	572,024
Non-Interest Income
Service charges	31,922	32,212	93,113	88,883
Trust services	6,395	5,748	19,312	17,210
Insurance commissions and fees	5,001	5,029	14,703	14,517
Securities commissions and fees	4,491	4,038	13,336	11,548
Capital markets income	5,100	2,822	16,168	11,673
Mortgage banking operations	5,962	5,437	17,431	14,400
Bank owned life insurance	4,399	3,123	10,761	8,368
Net securities gains	0	2,777	31	5,895
Other	11,564	4,965	22,371	14,851
Total Non-Interest Income	74,834	66,151	207,226	187,345
Non-Interest Expense
Salaries and employee benefits	89,535	82,383	277,532	240,860
Net occupancy	14,219	13,723	45,936	39,132
Equipment	13,593	13,711	41,241	35,761
Amortization of intangibles	3,805	4,805	11,834	12,716
Outside services	17,176	15,439	48,946	41,965
FDIC insurance	8,821	9,183	26,822	23,946
Bank shares and franchise taxes	3,237	2,814	9,929	8,536
Merger-related	0	1,381	0	55,459
Other	20,343	20,304	62,585	56,637
Total Non-Interest Expense	170,729	163,743	524,825	515,012
Income Before Income Taxes	122,917	110,871	336,624	244,357
Income taxes	22,154	33,178	63,893	69,279
Net Income	100,763	77,693	272,731	175,078
Preferred stock dividends	2,010	2,010	6,030	6,030
Net Income Available to Common Stockholders	$ 98,753	$ 75,683	$ 266,701	$ 169,048
Earnings per Common Share
Basic (in USD per share)	$ 0.30	$ 0.23	$ 0.82	$ 0.57
Diluted (in USD per share)	0.30	0.23	0.82	0.57
Cash Dividends per Common Share (in USD per share)	$ 0.12	$ 0.12	$ 0.36	$ 0.36

XML

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Statement of Comprehensive Income [Abstract]
Net income	$ 100,763	$ 77,693	$ 272,731	$ 175,078
Securities available for sale:
Unrealized (losses) gains arising during the period, net of tax (benefit) expense of $(3,502), $724, $(14,492) and $4,503	(12,310)	1,288	(50,970)	8,027
Reclassification adjustment for gains included in net income, net of tax expense of $0, $215, $7 and $223	0	(384)	(24)	(398)
Derivative instruments:
Unrealized gains (losses) arising during the period, net of tax expense (benefit) of $396, $76, $1,989 and $(1,265)	1,391	136	6,991	(2,254)
Reclassification adjustment for (gains) losses included in net income, net of tax expense (benefit) of $141, $(44), $346 and $45	(495)	78	(1,216)	(81)
Pension and postretirement benefit obligations:
Unrealized gains arising during the period, net of tax expense of $130, $535, $404 and $987	459	955	1,431	1,765
Other Comprehensive (Loss) Income	(10,955)	2,073	(43,788)	7,059
Comprehensive Income	$ 89,808	$ 79,766	$ 228,943	$ 182,137

XML

Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Statement of Comprehensive Income [Abstract]
Unrealized gains arising during the period, tax expense	$ (3,502)	$ 724	$ (14,492)	$ 4,503
Reclassification adjustment for gains included in net income, tax expense	0	215	7	223
Unrealized (losses) gains arising during the period, tax (benefit) expense	396	76	1,989	(1,265)
Reclassification adjustment for gains included in net income, tax expense	141	(44)	346	45
Unrealized gains arising during the period, tax expense	$ 130	$ 535	$ 404	$ 987

XML

Consolidated Statements of Stockholders' Equity - 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 beginning of period at Dec. 31, 2016	$ 2,571,617	$ 106,882	$ 2,125	$ 2,234,366	$ 304,397	$ (61,369)	$ (14,784)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income (loss)	182,137				175,078	7,059
Dividends declared:
Preferred stock	(6,030)				(6,030)
Common stock: $0.36/share	(103,584)				(103,584)
Issuance of common stock	875		10	5,178			(4,313)
Issuance of common stock - acquisitions	1,783,424		1,116	1,782,308
Assumption of warrant due to acquisition	1,394			1,394
Restricted stock compensation	6,088			6,088
Balance at end of period at Sep. 30, 2017	4,435,921	106,882	3,251	4,029,334	369,861	(54,310)	(19,097)
Balance at beginning of period at Dec. 31, 2017	4,409,194	106,882	3,253	4,033,567	367,658	(83,052)	(19,114)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income (loss)	228,943				272,731	(43,788)
Dividends declared:
Preferred stock	(6,030)				(6,030)
Common stock: $0.36/share	(117,494)				(117,494)
Issuance of common stock	2,941		10	5,291			(2,360)
Restricted stock compensation	7,310			7,310
Balance at end of period at Sep. 30, 2018	$ 4,524,864	$ 106,882	$ 3,263	$ 4,046,168	$ 516,865	$ (126,840)	$ (21,474)

XML

Consolidated Statements of Stockholders' Equity (Parenthetical) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Statement of Stockholders' Equity [Abstract]
Common stock dividends per share (in USD per share)	$ 0.12	$ 0.12	$ 0.36	$ 0.36

XML

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Operating Activities
Net income	$ 272,731	$ 175,078
Adjustments to reconcile net income to net cash flows provided by operating activities:
Depreciation, amortization and accretion	82,074	60,349
Provision for credit losses	46,024	44,374
Deferred tax expense	28,867	36,706
Net securities gains	(31)	(5,895)
Tax benefit of stock-based compensation	(378)	(735)
Loans originated for sale	(864,757)	(787,957)
Loans sold	933,183	709,323
Gain on sale of loans	(17,618)	(10,583)
Net change in:
Interest receivable	(8,259)	(10,104)
Interest payable	6,679	938
Bank owned life insurance	(7,204)	(8,100)
Other, net	45,530	(78,095)
Net cash flows provided by operating activities	516,841	125,299
Investing Activities
Net change in loans and leases	(1,054,971)	(886,944)
Securities available for sale:
Purchases	(1,029,263)	(1,042,784)
Sales	0	786,762
Maturities	421,666	404,618
Debt securities held to maturity:
Purchases	(244,367)	(842,020)
Sales	0	57,050
Maturities	275,788	309,075
Purchase of bank owned life insurance	39	25,102
Increase in premises and equipment	(19,267)	(46,781)
Net cash received in business combinations and divestitures	141,082	196,964
Other, net	70	0
Net cash flows used in investing activities	(1,509,301)	(1,089,162)
Financing Activities
Demand (non-interest bearing and interest bearing) and savings accounts	272,989	384,103
Time deposits	830,662	306,745
Short-term borrowings	1,043	573,102
Proceeds from issuance of long-term borrowings	26,612	96,917
Repayment of long-term borrowings	(67,163)	(150,420)
Net proceeds from issuance of common stock	10,251	6,963
Cash dividends paid:
Preferred stock	(6,030)	(6,030)
Common stock	(117,494)	(103,584)
Net cash flows provided by financing activities	950,870	1,107,796
Net Increase (Decrease) in Cash and Cash Equivalents	(41,590)	143,933
Cash and cash equivalents at beginning of period	479,443	371,407
Cash and Cash Equivalents at End of Period	$ 437,853	$ 515,340

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NATURE OF OPERATIONS

9 Months Ended

Sep. 30, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

NATURE OF OPERATIONS

NATURE OF OPERATIONS

F.N.B. Corporation, headquartered in Pittsburgh, Pennsylvania, is a diversified financial services company operating in six states. Through FNBPA, we have over 150 years of serving the financial and banking needs of our customers. We hold a significant retail deposit market share in attractive markets including: Pittsburgh, Pennsylvania; Baltimore, Maryland; Cleveland, Ohio; and Charlotte, Raleigh-Durham and the Piedmont Triad (Winston-Salem, Greensboro and High Point) in North Carolina. As of September 30, 2018, we had 397 banking offices throughout Pennsylvania, Ohio, Maryland, West Virginia, North Carolina and South Carolina. We provide a full range of commercial banking, consumer banking and wealth management solutions through our subsidiary network which is led by our largest affiliate, FNBPA. Commercial banking solutions include corporate banking, small business banking, investment real estate financing, 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.

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

9 Months Ended

Sep. 30, 2018

Accounting Policies [Abstract]

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Basis of Presentation

Our accompanying Consolidated Financial Statements and these Notes to the Financial Statements include subsidiaries in which we have a controlling financial interest. We own and operate FNBPA, First National Trust Company, First National Investment Services Company, LLC, F.N.B. Investment Advisors, Inc., First National Insurance Agency, LLC, Bank Capital Services, LLC and F.N.B. Capital Corporation, LLC, and include 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 our financial position and results of operations in accordance with U.S. generally accepted accounting principles. All significant intercompany balances and transactions have been eliminated. Certain prior period amounts have been reclassified to conform to the current period presentation. Such reclassifications had no impact on our net income and stockholders’ equity. Events occurring subsequent to the date of the September 30, 2018 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.

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 FNB expects for the full year. These interim unaudited Consolidated Financial Statements should be read in conjunction with the audited Consolidated Financial Statements and Notes thereto included in FNB’s 2017 Annual Report on Form 10-K filed with the SEC on February 28, 2018. For a detailed description of our significant accounting policies, see Note 1 "Summary of Significant Accounting Policies" in the 2017 Form 10-K. The accounting policies presented below have been added or amended for newly material items or the adoption of new accounting standards.

Use of Estimates

Our accounting and reporting policies conform with GAAP. The preparation of Financial Statements in conformity with GAAP requires us 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, accounting for acquired loans, fair value of financial instruments, goodwill and other intangible assets, income taxes and deferred tax assets and litigation.

Revenue from Contracts with Customers

We earn certain revenues from contracts with customers. These revenues are recognized when control of the promised services is transferred to the customers in an amount that reflects the consideration we expect to be entitled to in an exchange for those services.

In determining the appropriate revenue recognition for our contracts with customers, we consider whether the contract has commercial substance and is approved by both parties with identifiable contractual rights, payment terms, and the collectability of consideration is probable. Generally, we satisfy our performance obligations upon the completion of services at the amount to which we have the right to invoice or charge under contracts with an original expected duration of one year or less. We apply this guidance on a portfolio basis to contracts with similar characteristics and for which we believe the results would not differ materially from applying this guidance to individual contracts.

Our services provided under contracts with customers are transferred at the point in time when the services are rendered. Generally, we do not defer incremental direct costs to obtain contracts with customers that would be amortized in one year or less under the practical expedient. These costs are recognized as expense, primarily salary and benefit expense, in the period incurred.

Deposit Services.We recognize revenue on deposit services based on published fees for services provided. Demand and savings deposit customers have the right to cancel their depository arrangements and withdraw their deposited funds at any time without prior notice. When services involve deposited funds that can be retrieved by customers without penalties, we consider the service contract term to be day-to-day, where each day represents the renewal of the contract. The contract does not extend beyond the services performed and revenue is recognized at the end of the contract term (daily) as the performance obligation is satisfied.

No deposit services fees exist for long-term deposit products beyond early withdrawal penalties, which are earned on these products at the time of early termination.

Revenue from deposit services fees are reduced where we have a history of waived or reduced fees by customer request or due to a customer service issue, by historical experience, or another acceptable method in the same period as the related revenues. Revenues from deposit services are reported in the Consolidated Statements of Income as service charges and in the Community Banking segment as non-interest income.

Wealth Management Services.Wealth advisory and trust services are provided on a month-to-month basis and invoiced as services are rendered. Fees are based on a fixed amount or a scale based on the level of services provided or assets under management. The customer has the right to terminate their services agreement at any time. We determine the value of services performed based on the fee schedule in effect at the time the services are performed. Revenues from wealth advisory and trust services are reported in the Consolidated Statements of Income as trust services and securities commissions and fees, and in the Wealth segment as non-interest income.

Insurance Services.Insurance services include full-service insurance brokerage services offering numerous lines of commercial and personal insurance through major carriers to businesses and individuals within our geographic markets. We recognize revenue on insurance contracts in effect based on contractually specified commission payments on premiums that are paid by the customer to the insurance carrier. Contracts are cancellable at any time and we have no performance obligation to the customers beyond the time the insurance is placed into effect. Revenues from insurance services are reported in the Consolidated Statements of Income as insurance commissions and fees, and in the Insurance segment as non-interest income.

Debt Securities

Debt securities comprise a significant portion of our Consolidated Balance Sheets. Such securities can be classified as trading, HTM or AFS. As of September 30, 2018 and 2017, we did not hold any trading debt securities.

Debt securities HTM are the securities that management has the positive intent and ability to hold until their maturity. Such securities are carried at cost, adjusted for related amortization of premiums and accretion of discounts through interest income from securities, and subject to evaluation for OTTI.

Debt securities that are not classified as trading or HTM are classified as AFS. Such securities are carried at fair value with net unrealized gains and losses deemed to be temporary and OTTI attributable to non-credit factors reported separately as a component of other comprehensive income, net of tax.

We evaluate our debt securities in a loss position for OTTI on a quarterly basis at the individual security level based on our intent to sell. If we intend to sell the debt security or it is more likely than not we will be required to sell the security before recovery of its amortized cost basis, OTTI must be recognized in earnings equal to the entire difference between the investments’ amortized cost basis and its fair value. If we do not intend to sell the debt security and it is not more likely than not that we will be required to sell the security before recovery of its amortized cost basis, OTTI must be separated into the amount representing credit loss and the amount related to all other market factors. The amount related to credit loss will be recognized in earnings. The amount related to other market factors will be recognized in other comprehensive income, net of applicable taxes.

We perform our OTTI evaluation process in a consistent and systematic manner and include an evaluation of all available evidence. This process considers factors such as length of time and anticipated recovery period of the impairment, recent events specific to the issuer and recent experience regarding principal and interest payments.

Low Income Housing Tax Credit (LIHTC) Partnerships

We invest in various affordable housing projects that qualify for LIHTCs. The net investments are recorded in other assets on the Consolidated Balance Sheets. These investments generate a return through the realization of federal tax credits. We use the proportional amortization method to account for a majority of our investments in these entities. LIHTCs that do not meet the requirements of the proportional amortization method are recognized using the equity method. Our net investment in LIHTCs was $35.7 million and $20.9 million at September 30, 2018 and December 31, 2017, respectively. Our unfunded commitments in LIHTCs were $46.6 million and $67.2 million at September 30, 2018 and December 31, 2017, respectively.

Cloud Computing Arrangements

We evaluate fees paid for cloud computing arrangements to determine if those arrangements include the purchase of or license to use software that should be accounted for separately as internal-use software. If a contract includes the purchase or license to use 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.

In the third quarter of 2018, we early adopted, on a prospective basis, ASU 2018-15 (See Note 2) which allows for implementation costs for activities performed in cloud computing arrangements that are a service contract to be accounted for under the internal-use software guidance which allows for certain implementation costs to be capitalized depending on the nature of the costs and the project stage. Prior to the adoption of ASU 2018-15 all implementation costs for cloud computing arrangements that were a service contract were expensed as incurred.

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NEW ACCOUNTING STANDARDS

9 Months Ended

Sep. 30, 2018

Accounting Changes and Error Corrections [Abstract]

NEW ACCOUNTING STANDARDS

NEW ACCOUNTING STANDARDS

The following table summarizes accounting pronouncements issued by the Financial Accounting Standards Board that we recently adopted or will be adopting in the future.

TABLE 2.1

Standard	Description	Required Date of Adoption	Financial Statements Impact
Cloud Computing Arrangement
ASU 2018-15, Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract	This Update aligns the requirements for capitalizing implementation costs of a hosting arrangement that is a service contract with that of internal-use software.	January 1, 2020 Early adoption is permitted.	We early adopted this Update in the third quarter of 2018 by a prospective application method. The adoption of this Update did not have a material effect on our Consolidated Financial Statements.

Standard	Description	Required Date of Adoption	Financial Statements Impact
Derivative and Hedging Activities
ASU 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities	This Update improves the financial reporting of hedging to better align with a company’s risk management activities. In addition, this Update makes certain targeted improvements to simplify the application of the current hedge accounting guidance.	January 1, 2019 Early adoption is permitted.	This Update is to be applied using a modified retrospective method. The presentation and disclosure guidance are applied prospectively. We are currently assessing the potential impact to our Consolidated Financial Statements.
Securities
ASU 2017-08, Receivables-Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities	This Update shortens the amortization period for the premium on certain purchased callable securities to the earliest call date. The accounting for purchased callable debt securities held at a discount does not change.	January 1, 2019 Early adoption is permitted.	This Update is to be applied using a modified retrospective transition method. The adoption of this Update is not expected to have a material effect on our Consolidated Financial Statements.
Retirement Benefits
ASU 2017-07, Compensation - Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost	This Update requires that an employer disaggregate the service cost component from the other components of net benefit cost. The amendments also provide explicit guidance on how to present the service cost component and the other components of net benefit cost in the Income Statement and allows only the service cost component of net benefit cost to be eligible for capitalization.	January 1, 2018	We adopted this Update in the first quarter of 2018 by a retrospective transition method. The adoption of this Update did not have a material effect on our Consolidated Financial Statements.
Statement of Cash Flows
ASU 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments (a consensus of the Emerging Issues Task Force)	This Update adds or clarifies guidance on eight cash flow issues.	January 1, 2018	We adopted this Update in the first quarter of 2018 by retrospective application. The adoption of this Update did not have a material effect on our Consolidated Financial Statements.

Standard	Description	Required Date of Adoption	Financial Statements Impact
Credit Losses
ASU 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments	This Update replaces the current incurred loss impairment methodology with a methodology that reflects current expected credit losses (commonly referred to as CECL) for most financial assets measured at amortized cost and certain other instruments, including loans, HTM debt securities, net investments in leases and off-balance sheet credit exposures. CECL requires loss estimates for the remaining life of the financial asset at the time the asset is originated or acquired, considering historical experience, current conditions and reasonable and supportable forecasts. In addition, the Update will require the use of a modified AFS debt security impairment model and eliminate the current accounting for purchased credit impaired loans and debt securities.	January 1, 2020 Early adoption is permitted for fiscal years beginning after December 15, 2018	This Update is to be applied using a cumulative-effect adjustment to retained earnings. The CECL model is a significant change from existing GAAP and may result in a material change to our accounting for financial instruments and regulatory capital. We have created a cross-functional steering committee to govern implementation as we continue to review and enhance our business processes, information systems and controls to support recognition and disclosures under this Update including designing and building the models that will be used to calculate the expected credit losses. The impact of this Update will be dependent on the portfolio composition, credit quality and forecasts of economic conditions at the time of adoption.
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)	This Update requires entities that sell prepaid stored-value products redeemable for goods, services or cash at third-party merchants to recognize breakage.	January 1, 2018	We adopted this Update in the first quarter of 2018. The adoption of this Update did not have a material effect on our Consolidated Financial Statements.
Leases
ASU 2016-02, Leases (Topic 842) ASU 2018-10, Codification Improvements to Topic 842, Leases ASU 2018-11, Leases (Topic 842), Targeted Improvements	These Updatesrequire lessees to put most leases on their Balance Sheets 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.	January 1, 2019 Early adoption is permitted.	These Updates are to be applied using a modified retrospective application including a number of optional practical expedients. We are in the process of classifying our existing lease portfolios, implementing a software solution, and assessing the potential impact to our Consolidated Financial Statements. We do not believe this update will materially impact our consolidated net income.

Standard	Description	Required Date of Adoption	Financial Statements Impact
Financial Instruments – Recognition and Measurement
ASU 2016-01, Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities	This Update amends the presentation and accounting for certain financial instruments, including liabilities measured at fair value under the FVO, and equity investments. The guidance also updates fair value presentation and disclosure requirements for financial instruments measured at amortized cost.	January 1, 2018	We adopted this Update in the first quarter of 2018 by a cumulative-effect adjustment. The adoption of this Update did not have a material effect on our Consolidated Financial Statements. During the first quarter of 2018, we transferred marketable equity securities totaling $1.1 million from securities AFS to other assets.
Revenue Recognition
ASU 2014-09, Revenue from Contracts with Customers (Topic 606)	This Update 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.	January 1, 2018	We adopted this Update in the first quarter of 2018 under the modified retrospective method. The adoption of this Update did not have a material effect on our Consolidated Financial Statements.

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MERGERS AND ACQUISITIONS

9 Months Ended

Sep. 30, 2018

Business Combinations [Abstract]

MERGERS AND ACQUISITIONS

MERGERS AND ACQUISITIONS

Yadkin Financial Corporation

On March 11, 2017, we completed our acquisition of YDKN, a bank holding company based in Raleigh, North Carolina. YDKN’s banking affiliate, Yadkin Bank, was merged into FNBPA on March 11, 2017. YDKN’s results of operations have been included in our Consolidated Statements of Income since that date. The acquisition enabled us to enter several North Carolina markets, including Raleigh, Charlotte and the Piedmont Triad, which is comprised of Winston-Salem, Greensboro and High Point. We also completed the core systems conversion activities during the first quarter of 2017.

On the acquisition date, the fair values of YDKN included $6.8 billion in assets, of which there was $5.1 billion in loans, and $5.2 billion in deposits. The acquisition was valued at $1.8 billion based on the acquisition date FNB common stock closing price of $15.97 and resulted in FNB issuing 111,619,622 shares of our common stock in exchange for 51,677,565 shares of YDKN common stock. Under the terms of the merger agreement, shareholders of YDKN received 2.16 shares of FNB common stock for each share of YDKN common stock and cash in lieu of fractional shares. YDKN’s fully vested and outstanding stock options were converted into options to purchase and receive FNB common stock. In conjunction with the acquisition, we assumed a warrant that was issued by YDKN to the UST under the Capital Purchase Program. Based on the exchange ratio, this warrant, which expires in 2019, was converted into a warrant to purchase up to 207,320 shares of FNB common stock with an exercise price of $9.63.

The acquisition of YDKN constituted a business combination and has been accounted for using the acquisition method of accounting, and accordingly, assets acquired, liabilities assumed and consideration exchanged were recorded at estimated fair value on the acquisition date. The determination of estimated fair values required management to make certain estimates about discount rates, future expected cash flows, market conditions, and other future events that are highly subjective in nature and may require adjustments, which can be updated for up to a year following the acquisition. Any adjustments to fair values and related adjustments to goodwill were recorded within the 12-month period.

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SECURITIES

9 Months Ended

Sep. 30, 2018

Investments, Debt and Equity Securities [Abstract]

SECURITIES

SECURITIES

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

TABLE 4.1

(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair  Value
Securities Available for Sale:
September 30, 2018
U.S. government agencies	$	163,752	$	36	$	(788	)	$	163,000
U.S. government-sponsored entities	362,967		—		(6,700		)	356,267
Residential mortgage-backed securities:
Agency mortgage-backed securities	1,540,049		356		(56,585		)	1,483,820
Agency collateralized mortgage obligations	1,083,989		—		(37,508		)	1,046,481
Commercial mortgage-backed securities	228,957		—		(2,182		)	226,775
States of the U.S. and political subdivisions	20,782		—		(101		)	20,681
Other debt securities	1,950		—		(80		)	1,870
Total debt securities available for sale	$	3,402,446	$	392	$	(103,944	)	$	3,298,894
December 31, 2017
U.S. government-sponsored entities	$	347,767	$	52	$	(3,877	)	$	343,942
Residential mortgage-backed securities:
Agency mortgage-backed securities	1,615,168		1,225		(17,519		)	1,598,874
Agency collateralized mortgage obligations	813,034		—		(18,077		)	794,957
Non-agency collateralized mortgage obligations	1		—		—			1
States of the U.S. and political subdivisions	21,151		6		(64		)	21,093
Other debt securities	4,913		—		(243		)	4,670
Total debt securities	2,802,034		1,283		(39,780		)	2,763,537
Equity securities	587		438		—			1,025
Total securities available for sale	$	2,802,621	$	1,721	$	(39,780	)	$	2,764,562

(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair  Value
Debt Securities Held to Maturity:
September 30, 2018
U.S. Treasury	$	500	$	95	$	—		$	595
U.S. government agencies	1,987		58		—			2,045
U.S. government-sponsored entities	230,011		—		(6,170		)	223,841
Residential mortgage-backed securities:
Agency mortgage-backed securities	1,078,270		225		(40,969		)	1,037,526
Agency collateralized mortgage obligations	797,940		219		(37,797		)	760,362
Commercial mortgage-backed securities	76,818		1		(1,864		)	74,955
States of the U.S. and political subdivisions	1,020,819		—		(87,196		)	933,623
Total debt securities held to maturity	$	3,206,345	$	598	$	(173,996	)	$	3,032,947
December 31, 2017
U.S. Treasury	$	500	$	134	$	—		$	634
U.S. government-sponsored entities	247,310		93		(4,388		)	243,015
Residential mortgage-backed securities:
Agency mortgage-backed securities	1,219,802		3,475		(9,058		)	1,214,219
Agency collateralized mortgage obligations	777,146		32		(20,095		)	757,083
Commercial mortgage-backed securities	80,786		414		(575		)	80,625
States of the U.S. and political subdivisions	916,724		13,209		(7,130		)	922,803
Total debt securities held to maturity	$	3,242,268	$	17,357	$	(41,246	)	$	3,218,379

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

TABLE 4.2

	Three Months Ended September 30,					Nine Months Ended September 30,
(in thousands)	2018		2017			2018		2017
Gross gains	$	—	$	2,834		$	31	$	6,845
Gross losses	—		(57		)	—		(950		)
Net gains	$	—	$	2,777		$	31	$	5,895

As of September 30, 2018, the amortized cost and fair value of debt securities, by contractual maturities, were as follows:

TABLE 4.3

	Available for Sale				Held to Maturity
(in thousands)	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Due in one year or less	$	121,270	$	120,729	$	40,450	$	40,308
Due from one to five years	258,824		252,577		202,164		195,882
Due from five to ten years	57,811		57,603		109,606		105,281
Due after ten years	111,546		110,909		901,097		818,633
	549,451		541,818		1,253,317		1,160,104
Residential mortgage-backed securities:
Agency mortgage-backed securities	1,540,049		1,483,820		1,078,270		1,037,526
Agency collateralized mortgage obligations	1,083,989		1,046,481		797,940		760,362
Commercial mortgage-backed securities	228,957		226,775		76,818		74,955
Total debt securities	$	3,402,446	$	3,298,894	$	3,206,345	$	3,032,947

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 residential mortgage-backed securities based on the payment patterns of the underlying collateral.

Following is information relating to securities pledged:

TABLE 4.4

(dollars in thousands)	September 30, 2018			December 31, 2017
Securities pledged (carrying value):
To secure public deposits, trust deposits and for other purposes as required by law	$	3,912,575		$	3,491,634
As collateral for short-term borrowings	282,682			263,756
Securities pledged as a percent of total securities	64.5		%	62.5		%

Following are summaries of the fair values and unrealized losses of temporarily impaired debt securities, segregated by length of impairment. The unrealized losses reported below are generally due to the higher interest rate environment.

TABLE 4.5

	Less than 12 Months						12 Months or More						Total
(dollars in thousands)	#	Fair  Value		Unrealized Losses			#	Fair  Value		Unrealized Losses			#	Fair  Value		Unrealized Losses
Debt Securities Available for Sale
September 30, 2018
U.S. government agencies	18	$	137,530	$	(788	)	—	$	—	$	—		18	$	137,530	$	(788	)
U.S. government-sponsored entities	6	136,678		(1,292		)	11	219,589		(5,408		)	17	356,267		(6,700		)
Residential mortgage-backed securities:
Agency mortgage-backed securities	40	666,851		(20,289		)	48	807,826		(36,296		)	88	1,474,677		(56,585		)
Agency collateralized mortgage obligations	17	568,169		(11,501		)	39	448,336		(26,007		)	56	1,016,505		(37,508		)
Commercial mortgage-backed securities	6	226,775		(2,182		)	—	—		—			6	226,775		(2,182		)
States of the U.S. and political subdivisions	7	11,672		(80		)	2	2,028		(21		)	9	13,700		(101		)
Other debt securities	—	—		—			1	1,870		(80		)	1	1,870		(80		)
Total temporarily impaired debt securities AFS	94	$	1,747,675	$	(36,132	)	101	$	1,479,649	$	(67,812	)	195	$	3,227,324	$	(103,944	)
December 31, 2017
U.S. government-sponsored entities	7	$	106,809	$	(363	)	10	$	201,485	$	(3,514	)	17	$	308,294	$	(3,877	)
Residential mortgage-backed securities:
Agency mortgage-backed securities	43	976,738		(7,723		)	28	473,625		(9,796		)	71	1,450,363		(17,519		)
Agency collateralized mortgage obligations	14	409,005		(6,231		)	33	335,452		(11,846		)	47	744,457		(18,077		)
States of the U.S. and political subdivisions	7	11,254		(55		)	1	879		(9		)	8	12,133		(64		)
Other debt securities	—	—		—			3	4,670		(243		)	3	4,670		(243		)
Total temporarily impaired debt securities AFS	71	$	1,503,806	$	(14,372	)	75	$	1,016,111	$	(25,408	)	146	$	2,519,917	$	(39,780	)

	Less than 12 Months						12 Months or More						Total
(dollars in thousands)	#	Fair  Value		Unrealized Losses			#	Fair  Value		Unrealized Losses			#	Fair  Value		Unrealized Losses
Debt Securities Held to Maturity
September 30, 2018
U.S. government-sponsored entities	3	$	39,696	$	(315	)	10	$	184,145	$	(5,855	)	13	$	223,841	$	(6,170	)
Residential mortgage-backed securities:
Agency mortgage-backed securities	66	609,169		(20,754		)	29	417,024		(20,215		)	95	1,026,193		(40,969		)
Agency collateralized mortgage obligations	15	307,031		(9,673		)	38	416,467		(28,124		)	53	723,498		(37,797		)
Commercial mortgage-backed securities	7	52,471		(1,184		)	4	21,371		(680		)	11	73,842		(1,864		)
States of the U.S. and political subdivisions	278	810,893		(60,672		)	42	122,730		(26,524		)	320	933,623		(87,196		)
Total temporarily impaired debt securities HTM	369	$	1,819,260	$	(92,598	)	123	$	1,161,737	$	(81,398	)	492	$	2,980,997	$	(173,996	)
December 31, 2017
U.S. government-sponsored entities	4	$	54,790	$	(239	)	10	$	185,851	$	(4,149	)	14	$	240,641	$	(4,388	)
Residential mortgage-backed securities:
Agency mortgage-backed securities	36	648,485		(4,855		)	11	183,989		(4,203		)	47	832,474		(9,058		)
Agency collateralized mortgage obligations	14	275,290		(1,701		)	35	473,257		(18,394		)	49	748,547		(20,095		)
Commercial mortgage-backed securities	3	26,399		(123		)	2	19,443		(452		)	5	45,842		(575		)
States of the U.S. and political subdivisions	16	56,739		(933		)	37	121,536		(6,197		)	53	178,275		(7,130		)
Total temporarily impaired debt securities HTM	73	$	1,061,703	$	(7,851	)	95	$	984,076	$	(33,395	)	168	$	2,045,779	$	(41,246	)

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

Other-Than-Temporary Impairment

We evaluate our investment securities portfolio for OTTI on a quarterly basis. Impairment is assessed at the individual security level. We consider an investment security impaired if the fair value of the security is less than its cost or amortized cost basis. We did not recognize any OTTI losses on securities for the nine months ended September 30, 2018 or 2017.

States of the U.S. and Political Subdivisions

Our municipal bond portfolio with a carrying amount of $1.0 billion as of September 30, 2018 is highly rated with an average entity-specific rating of AA and 100% of the portfolio rated A or better, while 99% have stand-alone ratings of A or better. All of the securities in the municipal portfolio except one are general obligation bonds. Geographically, municipal bonds support our primary footprint as 65% of the securities are from municipalities located throughout Pennsylvania, Ohio, Maryland, North Carolina and South Carolina. The average holding size of the securities in the municipal bond portfolio is $3.1 million. In addition to the strong stand-alone ratings, 64% of the municipalities have some formal credit enhancement insurance that strengthens the creditworthiness of their issue. Management reviews the credit profile of each issuer on a quarterly basis.

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LOANS AND LEASES

9 Months Ended

Sep. 30, 2018

Receivables [Abstract]

LOANS AND LEASES

LOANS AND LEASES

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

TABLE 5.1

(in thousands)	Originated Loans and Leases		Acquired Loans		Total Loans and Leases
September 30, 2018
Commercial real estate	$	5,978,629	$	2,867,111	$	8,845,740
Commercial and industrial	3,892,822		470,635		4,363,457
Commercial leases	346,579		—		346,579
Other	34,732		—		34,732
Total commercial loans and leases	10,252,762		3,337,746		13,590,508
Direct installment	1,670,964		107,159		1,778,123
Residential mortgages	2,457,380		527,282		2,984,662
Indirect installment	1,880,487		162		1,880,649
Consumer lines of credit	1,116,376		489,085		1,605,461
Total consumer loans	7,125,207		1,123,688		8,248,895
Total loans and leases, net of unearned income	$	17,377,969	$	4,461,434	$	21,839,403
December 31, 2017
Commercial real estate	$	5,174,783	$	3,567,081	$	8,741,864
Commercial and industrial	3,495,247		675,420		4,170,667
Commercial leases	266,720		—		266,720
Other	17,063		—		17,063
Total commercial loans and leases	8,953,813		4,242,501		13,196,314
Direct installment	1,755,713		149,822		1,905,535
Residential mortgages	2,036,226		666,465		2,702,691
Indirect installment	1,448,268		165		1,448,433
Consumer lines of credit	1,151,470		594,323		1,745,793
Total consumer loans	6,391,677		1,410,775		7,802,452
Total loans and leases, net of unearned income	$	15,345,490	$	5,653,276	$	20,998,766

The loans and leases portfolio categories are comprised of the following:

• 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 consist of leases for new or used equipment;

• Other is comprised primarily of credit cards and mezzanine loans;

• 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 1-4 family properties;

• Indirect installment is comprised of loans originated by approved third parties and underwritten by us, primarily automobile loans; and

• Consumer lines of credit include home equity lines of credit and consumer lines of credit that are either unsecured or secured by collateral other than home equity.

The loans and leases portfolio consists principally of loans to individuals and small- and medium-sized businesses within our primary market areas of Pennsylvania, eastern Ohio, Maryland, North Carolina, South Carolina and northern West Virginia.

The following table shows certain information relating to commercial real estate loans:

TABLE 5.2

(dollars in thousands)	September 30, 2018			December 31, 2017
Commercial construction, acquisition and development loans	$	1,146,612		$	1,170,175
Percent of total loans and leases	5.3		%	5.6		%
Commercial real estate:
Percent owner-occupied	34.7		%	35.3		%
Percent non-owner-occupied	65.3		%	64.7		%

Acquired Loans

All acquired loans were initially recorded at fair value at the acquisition date. Refer to the Acquired Loans section in Note 1 of our 2017 Annual Report on Form 10-K for a discussion of ASC 310-20 and ASC 310-30 loans. The outstanding balance and the carrying amount of acquired loans included in the Consolidated Balance Sheets are as follows:

TABLE 5.3

(in thousands)	September 30, 2018		December 31, 2017
Accounted for under ASC 310-30:
Outstanding balance	$	4,110,019	$	5,176,015
Carrying amount	3,830,823		4,834,256
Accounted for under ASC 310-20:
Outstanding balance	644,077		835,130
Carrying amount	626,041		812,322
Total acquired loans:
Outstanding balance	4,754,096		6,011,145
Carrying amount	4,456,864		5,646,578

The outstanding balance is the undiscounted sum of all amounts owed under the loan, including amounts deemed principal, interest, fees, penalties and other, whether or not currently due and whether or not any such amounts have been written or charged-off.

The carrying amount of purchased credit impaired loans included in the table above totaled $1.7 million at September 30, 2018 and $1.9 million at December 31, 2017, representing 0.04% and 0.03%, respectively, 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.

TABLE 5.4

	Nine Months Ended September 30,
(in thousands)	2018			2017
Balance at beginning of period	$	708,481		$	467,070
Acquisitions	—			444,715
Reduction due to unexpected early payoffs	(117,469		)	(90,097		)
Reclass from non-accretable difference	184,545			163,714
Disposals/transfers	(444		)	(341		)
Other	(412		)	1,129
Accretion	(169,605		)	(164,219		)
Balance at end of period	$	605,096		$	821,971

Cash flows expected to be collected on acquired loans are estimated quarterly by incorporating several key assumptions similar to the initial estimate of fair value. These key assumptions include probability of default and the amount of actual prepayments after the acquisition date. Prepayments affect the estimated life of the loans and could change the amount of interest income, and possibly principal expected to be collected. In reforecasting future estimated cash flows, credit loss expectations are adjusted as necessary. Improved cash flow expectations for loans or pools are recorded first as a reversal of previously recorded impairment, if any, and then as an increase in prospective yield when all previously recorded impairment has been recaptured. Decreases in expected cash flows are recognized as impairment through a charge to the provision for credit losses and credit to the allowance for credit losses.

The excess of cash flows expected to be collected at acquisition over recorded fair value is referred to as the accretable yield.

The accretable yield is recognized into income over the remaining life of the loan, or pool of loans, using an effective yield

method, if the timing and/or amount of cash flows expected to be collected can be reasonably estimated (the accretion model).

If the timing and/or amount of cash flows expected to be collected cannot be reasonably estimated, the cost recovery method of

income recognition must be used. The difference between the loan’s total scheduled principal and interest payments over all

cash flows expected at acquisition is referred to as the non-accretable difference. The non-accretable difference represents

contractually required principal and interest payments which we do not expect to collect.

During the nine months ended September 30, 2018, there was an overall improvement in cash flow expectations which resulted in a net reclassification of $184.5 million from the non-accretable difference to accretable yield. This reclassification was $163.7 million for the nine months ended September 30, 2017. The reclassification from the non-accretable difference to the accretable yield results in prospective yield adjustments on the loan pools and was also positively impacted by the sale of $56.5 million of acquired residential mortgage loans in the second quarter of 2018.

Credit Quality

Management monitors the credit quality of our loan portfolio using several performance measures to do so based on payment activity and borrower performance.

Non-performing loans include non-accrual loans and non-performing TDRs. Past due loans are reviewed on a monthly basis to identify loans for non-accrual status. We place originated loans on non-accrual status and discontinue 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 full amount of principal and interest is due and has remained unpaid for a certain number of days, unless the loan is both well secured and in the process of collection. Commercial loans and leases 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, though we may place a loan on non-accrual prior to these past due thresholds as warranted. When a loan is placed on non-accrual status, all unpaid accrued 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. The majority of TDRs are loans in which we have granted a concession on the interest rate or the original repayment terms due to the borrower’s financial distress.

Following is a summary of non-performing assets:

TABLE 5.5

(dollars in thousands)	September 30, 2018			December 31, 2017
Non-accrual loans	$	79,899		$	74,635
Troubled debt restructurings	22,322			23,481
Total non-performing loans	102,221			98,116
Other real estate owned	35,685			40,606
Total non-performing assets	$	137,906		$	138,722
Asset quality ratios:
Non-performing loans / total loans and leases	0.47		%	0.47		%
Non-performing loans + OREO / total loans and leases + OREO	0.63		%	0.66		%
Non-performing assets / total assets	0.42		%	0.44		%

The carrying value of residential other real estate owned held as a result of obtaining physical possession upon completion of a foreclosure or through completion of a deed in lieu of foreclosure amounted to $5.4 million at September 30, 2018 and $3.6 million at December 31, 2017. The recorded investment of consumer mortgage loans secured by residential real estate properties for which formal foreclosure proceedings are in process at September 30, 2018 and December 31, 2017 totaled $9.0 million and $15.2 million, respectively.

The following tables provide an analysis of the aging of loans by class segregated by loans and leases originated and loans acquired:

TABLE 5.6

(in thousands)	30-89 Days Past Due		>90 Days Past Due and Still Accruing		Non- Accrual		Total Past Due (4)		Current		Total Loans and Leases
Originated Loans and Leases
September 30, 2018
Commercial real estate	$	12,978	$	2	$	18,243	$	31,223	$	5,947,406	$	5,978,629
Commercial and industrial	7,069		3		27,323		34,395		3,858,427		3,892,822
Commercial leases	712		—		5,526		6,238		340,341		346,579
Other	80		141		1,000		1,221		33,511		34,732
Total commercial loans and leases	20,839		146		52,092		73,077		10,179,685		10,252,762
Direct installment	7,779		663		7,888		16,330		1,654,634		1,670,964
Residential mortgages	19,274		1,754		6,110		27,138		2,430,242		2,457,380
Indirect installment	8,889		505		2,263		11,657		1,868,830		1,880,487
Consumer lines of credit	5,039		904		3,583		9,526		1,106,850		1,116,376
Total consumer loans	40,981		3,826		19,844		64,651		7,060,556		7,125,207
Total originated loans and leases	$	61,820	$	3,972	$	71,936	$	137,728	$	17,240,241	$	17,377,969
December 31, 2017
Commercial real estate	$	8,273	$	1	$	24,773	$	33,047	$	5,141,736	$	5,174,783
Commercial and industrial	8,948		3		17,077		26,028		3,469,219		3,495,247
Commercial leases	1,382		41		1,574		2,997		263,723		266,720
Other	83		153		1,000		1,236		15,827		17,063
Total commercial loans and leases	18,686		198		44,424		63,308		8,890,505		8,953,813
Direct installment	13,192		4,466		8,896		26,554		1,729,159		1,755,713
Residential mortgages	14,096		2,832		5,771		22,699		2,013,527		2,036,226
Indirect installment	10,313		611		2,240		13,164		1,435,104		1,448,268
Consumer lines of credit	5,859		1,014		2,313		9,186		1,142,284		1,151,470
Total consumer loans	43,460		8,923		19,220		71,603		6,320,074		6,391,677
Total originated loans and leases	$	62,146	$	9,121	$	63,644	$	134,911	$	15,210,579	$	15,345,490

(in thousands)	30-89 Days Past Due		>90 Days Past Due and Still Accruing		Non- Accrual		Total Past Due (1) (2) (3)		Current		(Discount) Premium			Total Loans
Acquired Loans
September 30, 2018
Commercial real estate	$	33,024	$	48,044	$	3,030	$	84,098	$	2,956,931	$	(173,918	)	$	2,867,111
Commercial and industrial	1,704		2,801		4,252		8,757		492,430		(30,552		)	470,635
Total commercial loans	34,728		50,845		7,282		92,855		3,449,361		(204,470		)	3,337,746
Direct installment	4,168		1,798		—		5,966		101,669		(476		)	107,159
Residential mortgages	15,237		6,428		—		21,665		522,844		(17,227		)	527,282
Indirect installment	—		1		—		1		—		161			162
Consumer lines of credit	6,699		2,244		681		9,624		490,358		(10,897		)	489,085
Total consumer loans	26,104		10,471		681		37,256		1,114,871		(28,439		)	1,123,688
Total acquired loans	$	60,832	$	61,316	$	7,963	$	130,111	$	4,564,232	$	(232,909	)	$	4,461,434
December 31, 2017
Commercial real estate	$	34,928	$	63,092	$	3,975	$	101,995	$	3,657,152	$	(192,066	)	$	3,567,081
Commercial and industrial	3,187		6,452		5,663		15,302		698,265		(38,147		)	675,420
Total commercial loans	38,115		69,544		9,638		117,297		4,355,417		(230,213		)	4,242,501
Direct installment	5,267		2,013		—		7,280		141,386		1,156			149,822
Residential mortgages	17,191		15,139		—		32,330		675,499		(41,364		)	666,465
Indirect installment	—		1		—		1		10		154			165
Consumer lines of credit	6,353		3,253		1,353		10,959		596,298		(12,934		)	594,323
Total consumer loans	28,811		20,406		1,353		50,570		1,413,193		(52,988		)	1,410,775
Total acquired loans	$	66,926	$	89,950	$	10,991	$	167,867	$	5,768,610	$	(283,201	)	$	5,653,276

(1) Past due information for acquired loans is based on the contractual balance outstanding at September 30, 2018 and December 31, 2017.

(2) Acquired loans are considered performing upon acquisition, regardless of whether the customer is contractually delinquent, if we can reasonably estimate the timing and amount of expected cash flows on such loans. In these instances, we do not consider acquired contractually delinquent loans to be non-accrual or non-performing and continue 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, we determine we are no longer able to reasonably estimate the timing and amount of expected cash flows on such loans. We do not recognize interest income on acquired loans considered non-accrual or non-performing.

(3) Approximately $28.5 million of acquired past-due or non-accrual loans were sold during the second quarter of 2018.

(4) Approximately $14.7 million of originated past-due or non-accrual loans were sold during the second quarter of 2018.

We utilize the following categories to monitor credit quality within our commercial loan and lease portfolio:

TABLE 5.7

Rating Category	Definition
Pass	in general, the condition of the borrower and the performance of the loan 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 of the borrower has significantly deteriorated and the performance of the loan 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. Our 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 our 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 our commercial loans and leases by credit quality category, segregated by loans and leases originated and loans acquired:

TABLE 5.8

	Commercial Loan and Lease Credit Quality Categories
(in thousands)	Pass		Special Mention		Substandard		Doubtful		Total
Originated Loans and Leases
September 30, 2018
Commercial real estate	$	5,716,992	$	144,800	$	116,793	$	44	$	5,978,629
Commercial and industrial	3,626,199		187,032		74,879		4,712		3,892,822
Commercial leases	335,439		1,623		9,517		—		346,579
Other	33,481		110		1,141		—		34,732
Total originated commercial loans and leases	$	9,712,111	$	333,565	$	202,330	$	4,756	$	10,252,762
December 31, 2017
Commercial real estate	$	4,922,872	$	152,744	$	98,728	$	439	$	5,174,783
Commercial and industrial	3,266,966		132,975		92,091		3,215		3,495,247
Commercial leases	260,235		4,425		2,060		—		266,720
Other	15,866		43		1,154		—		17,063
Total originated commercial loans and leases	$	8,465,939	$	290,187	$	194,033	$	3,654	$	8,953,813
Acquired Loans
September 30, 2018
Commercial real estate	$	2,481,679	$	181,813	$	203,448	$	171	$	2,867,111
Commercial and industrial	408,326		20,605		41,704		—		470,635
Total acquired commercial loans	$	2,890,005	$	202,418	$	245,152	$	171	$	3,337,746
December 31, 2017
Commercial real estate	$	3,102,788	$	250,987	$	213,089	$	217	$	3,567,081
Commercial and industrial	603,611		26,059		45,661		89		675,420
Total acquired commercial loans	$	3,706,399	$	277,046	$	258,750	$	306	$	4,242,501

Credit quality information for acquired loans is based on the contractual balance outstanding at September 30, 2018 and December 31, 2017.

We use 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, Fair Isaac Corporation (FICO) scores and other external factors such as unemployment, to determine how consumer loans are performing.

Following is a table showing consumer loans by payment status:

TABLE 5.9

	Consumer Loan Credit Quality by Payment Status
(in thousands)	Performing		Non- Performing		Total
Originated loans
September 30, 2018
Direct installment	$	1,656,375	$	14,589	$	1,670,964
Residential mortgages	2,441,374		16,006		2,457,380
Indirect installment	1,878,224		2,263		1,880,487
Consumer lines of credit	1,111,004		5,372		1,116,376
Total originated consumer loans	$	7,086,977	$	38,230	$	7,125,207
December 31, 2017
Direct installment	$	1,739,060	$	16,653	$	1,755,713
Residential mortgages	2,019,816		16,410		2,036,226
Indirect installment	1,445,833		2,435		1,448,268
Consumer lines of credit	1,147,576		3,894		1,151,470
Total originated consumer loans	$	6,352,285	$	39,392	$	6,391,677
Acquired loans
September 30, 2018
Direct installment	$	107,091	$	68	$	107,159
Residential mortgages	527,282		—		527,282
Indirect installment	162		—		162
Consumer lines of credit	487,823		1,262		489,085
Total acquired consumer loans	$	1,122,358	$	1,330	$	1,123,688
December 31, 2017
Direct installment	$	149,751	$	71	$	149,822
Residential mortgages	666,465		—		666,465
Indirect installment	165		—		165
Consumer lines of credit	592,384		1,939		594,323
Total acquired consumer loans	$	1,408,765	$	2,010	$	1,410,775

Loans 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, we do not consider loans 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.). Effective July 1, 2018, we changed our threshold for measuring impairment on a collective basis.  Impairment is evaluated in the aggregate for newly impaired commercial loan relationships less than $1.0 million based on loan segment loss given default. Impairment is evaluated in the aggregate for consumer installment loans, residential mortgages, consumer lines of credit and commercial loan relationships less than $1.0 million based on loan segment loss given default. For commercial loan relationships greater than or equal to $1.0 million, 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 our existing method of income recognition for loans, interest income on impaired loans, except those classified as non-accrual, is recognized 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:

TABLE 5.10

(in thousands)	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 Nine Months Ended September 30, 2018
Commercial real estate	$	20,051	$	17,576	$	635	$	18,211	$	44	$	16,360
Commercial and industrial	31,219		19,533		8,272		27,805		4,712		27,096
Commercial leases	5,526		5,526		—		5,526		—		3,372
Total commercial loans and leases	56,796		42,635		8,907		51,542		4,756		46,828
Direct installment	17,554		14,589		—		14,589		—		15,191
Residential mortgages	17,316		16,006		—		16,006		—		16,887
Indirect installment	4,576		2,263		—		2,263		—		2,208
Consumer lines of credit	7,330		5,372		—		5,372		—		5,172
Total consumer loans	46,776		38,230		—		38,230		—		39,458
Total	$	103,572	$	80,865	$	8,907	$	89,772	$	4,756	$	86,286
At or for the Year Ended December 31, 2017
Commercial real estate	$	27,718	$	21,748	$	2,906	$	24,654	$	439	$	24,413
Commercial and industrial	29,307		11,595		4,457		16,052		3,215		23,907
Commercial leases	1,574		1,574		—		1,574		—		1,386
Total commercial loans and leases	58,599		34,917		7,363		42,280		3,654		49,706
Direct installment	19,375		16,653		—		16,653		—		16,852
Residential mortgages	17,754		16,410		—		16,410		—		15,984
Indirect installment	5,709		2,435		—		2,435		—		2,279
Consumer lines of credit	5,039		3,894		—		3,894		—		3,815
Total consumer loans	47,877		39,392		—		39,392		—		38,930
Total	$	106,476	$	74,309	$	7,363	$	81,672	$	3,654	$	88,636

Interest income continued to accrue on certain impaired loans and totaled approximately $4.3 million and $3.3 million for the nine months ended September 30, 2018 and 2017, respectively. The above tables do not reflect the additional allowance for credit losses relating to acquired loans. Following is a summary of the allowance for credit losses required for acquired loans due to changes in credit quality subsequent to the acquisition date:

TABLE 5.11

(in thousands)	September 30, 2018			December 31, 2017
Commercial real estate	$	2,440		$	4,976
Commercial and industrial	639			(415		)
Total commercial loans	3,079			4,561
Direct installment	967			1,553
Residential mortgages	520			484
Indirect installment	226			177
Consumer lines of credit	(222		)	(77		)
Total consumer loans	1,491			2,137
Total allowance on acquired loans	$	4,570		$	6,698

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 composition of total TDRs:

TABLE 5.12

(in thousands)	Originated		Acquired		Total
September 30, 2018
Accruing:
Performing	$	16,963	$	67	$	17,030
Non-performing	19,060		3,262		22,322
Non-accrual	8,621		91		8,712
Total TDRs	$	44,644	$	3,420	$	48,064
December 31, 2017
Accruing:
Performing	$	19,538	$	266	$	19,804
Non-performing	20,173		3,308		23,481
Non-accrual	10,472		234		10,706
Total TDRs	$	50,183	$	3,808	$	53,991

TDRs that are accruing and performing include loans that met the criteria for non-accrual of interest prior to restructuring for which we can reasonably estimate the timing and amount of the expected cash flows on such loans and for which we expect to fully collect the new carrying value of the loans. During the nine months ended September 30, 2018, we returned to performing status $3.0 million 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 we 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 $1.0 million 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. Our allowance for credit losses included specific reserves for commercial TDRs and pooled reserves for individually impaired loans under $1.0 million 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. The reserve for commercial TDRs included in the allowance for credit losses is presented in the following table:

TABLE 5.13

(in thousands)	September 30, 2018		December 31, 2017
Specific reserves for commercial TDRs	$	—	$	95
Pooled reserves for individual commercial loans	551		469

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. Our allowance for credit losses included pooled reserves for these classes of loans of $4.0 million for September 30, 2018 and $4.0 million for December 31, 2017. Upon default of an individual loan, our charge-off policy is followed accordingly for that class of loan.

Following is a summary of TDR loans, by class:

TABLE 5.14

	Three Months Ended September 30, 2018					Nine Months Ended September 30, 2018
(dollars in thousands)	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	3	$	507	$	494	4	$	656	$	614
Commercial and industrial	1	15		—		12	662		633
Total commercial loans	4	522		494		16	1,318		1,247
Direct installment	15	650		638		65	3,215		2,941
Residential mortgages	4	283		279		13	898		854
Indirect installment	—	—		—		—	—		—
Consumer lines of credit	11	540		549		25	1,199		1,004
Total consumer loans	30	1,473		1,466		103	5,312		4,799
Total	34	$	1,995	$	1,960	119	$	6,630	$	6,046

	Three Months Ended September 30, 2017					Nine Months Ended September 30, 2017
(dollars in thousands)	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	—	$	—	$	—	2	$	595	$	560
Commercial and industrial	1	15		10		3	3,568		4,169
Total commercial loans	1	15		10		5	4,163		4,729
Direct installment	141	1,037		919		474	4,014		3,580
Residential mortgages	14	946		952		30	1,539		1,446
Indirect installment	3	5		4		12	36		32
Consumer lines of credit	9	77		50		51	1,080		901
Total consumer loans	167	2,065		1,925		567	6,669		5,959
Total	168	$	2,080	$	1,935	572	$	10,832	$	10,688

The year-to-date items in the above tables have been adjusted for loans that have been paid off and/or sold.

Following is a summary of originated TDRs, by class, 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.

TABLE 5.15

	Three Months Ended September 30, 2018			Nine Months Ended September 30, 2018
(dollars in thousands)	Number of Contracts	Recorded Investment		Number of Contracts	Recorded Investment
Commercial real estate	3	$	1,078	3	$	1,078
Commercial and industrial	2	16		1	9
Total commercial loans	5	1,094		4	1,087
Direct installment	3	$	274	5	$	332
Residential mortgages	2	108		4	224
Indirect installment	—	—		—	—
Consumer lines of credit	—	—		3	252
Total consumer loans	5	382		12	808
Total	10	$	1,476	16	$	1,895

	Three Months Ended September 30, 2017			Nine Months Ended September 30, 2017
(dollars in thousands)	Number of Contracts	Recorded Investment		Number of Contracts	Recorded Investment
Commercial real estate	1	$	463	1	$	463
Commercial and industrial	—	—		3	326
Total commercial loans	1	463		4	789
Direct installment	39	265		91	278
Residential mortgages	1	80		4	264
Indirect installment	4	22		12	22
Consumer lines of credit	3	26		4	89
Total consumer loans	47	393		111	653
Total	48	$	856	115	$	1,442

The year-to-date items in the above tables have been adjusted for loans that have been paid off and/or sold.

XML

ALLOWANCE FOR CREDIT LOSSES

9 Months Ended

Sep. 30, 2018

Receivables [Abstract]

ALLOWANCE FOR CREDIT LOSSES

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

TABLE 6.1

(in thousands)	Balance at Beginning of Period		Charge- Offs			Recoveries		Net Charge- Offs			Provision for Credit Losses			Balance at End of Period
Three Months Ended September 30, 2018
Commercial real estate	$	50,587	$	(727	)	$	567	$	(160	)	$	4,256		$	54,683
Commercial and industrial	53,689		(2,432		)	373		(2,059		)	906			52,536
Commercial leases	7,039		(51		)	2		(49		)	510			7,500
Other	1,996		(918		)	274		(644		)	726			2,078
Total commercial loans and leases	113,311		(4,128		)	1,216		(2,912		)	6,398			116,797
Direct installment	20,279		(9,436		)	276		(9,160		)	2,714			13,833
Residential mortgages	15,163		(77		)	7		(70		)	2,576			17,669
Indirect installment	13,401		(2,061		)	620		(1,441		)	2,493			14,453
Consumer lines of credit	10,461		(832		)	258		(574		)	672			10,559
Total consumer loans	59,304		(12,406		)	1,161		(11,245		)	8,455			56,514
Total allowance on originated loans and leases	172,615		(16,534		)	2,377		(14,157		)	14,853			173,311
Purchased credit-impaired loans	624		—			—		—			—			624
Other acquired loans	3,335		(713		)	202		(511		)	1,122			3,946
Total allowance on acquired loans	3,959		(713		)	202		(511		)	1,122			4,570
Total allowance for credit losses	$	176,574	$	(17,247	)	$	2,579	$	(14,668	)	$	15,975		$	177,881
Nine Months Ended September 30, 2018
Commercial real estate	$	50,281	$	(5,206	)	$	1,669	$	(3,537	)	$	7,939		$	54,683
Commercial and industrial	51,963		(14,479		)	1,899		(12,580		)	13,153			52,536
Commercial leases	5,646		(258		)	26		(232		)	2,086			7,500
Other	1,843		(3,293		)	843		(2,450		)	2,685			2,078
Total commercial loans and leases	109,733		(23,236		)	4,437		(18,799		)	25,863			116,797
Direct installment	20,936		(15,828		)	1,179		(14,649		)	7,546			13,833
Residential mortgages	15,507		(470		)	114		(356		)	2,518			17,669
Indirect installment	11,967		(6,688		)	2,489		(4,199		)	6,685			14,453
Consumer lines of credit	10,539		(2,468		)	441		(2,027		)	2,047			10,559
Total consumer loans	58,949		(25,454		)	4,223		(21,231		)	18,796			56,514
Total allowance on originated loans and leases	168,682		(48,690		)	8,660		(40,030		)	44,659			173,311
Purchased credit-impaired loans	635		—			—		—			(11		)	624
Other acquired loans	6,063		(5,098		)	1,605		(3,493		)	1,376			3,946
Total allowance on acquired loans	6,698		(5,098		)	1,605		(3,493		)	1,365			4,570
Total allowance for credit losses	$	175,380	$	(53,788	)	$	10,265	$	(43,523	)	$	46,024		$	177,881

(in thousands)	Balance at Beginning of Period		Charge- Offs			Recoveries		Net Charge- Offs			Provision for Credit Losses			Balance at End of Period
Three Months Ended September 30, 2017
Commercial real estate	$	46,958	$	(610	)	$	93	$	(517	)	$	1,682		$	48,123
Commercial and industrial	54,108		(6,592		)	298		(6,294		)	5,889			53,703
Commercial leases	4,122		(112		)	1		(111		)	818			4,829
Other	1,838		(1,386		)	298		(1,088		)	1,018			1,768
Total commercial loans and leases	107,026		(8,700		)	690		(8,010		)	9,407			108,423
Direct installment	20,736		(3,247		)	402		(2,845		)	2,786			20,677
Residential mortgages	11,252		(155		)	8		(147		)	1,630			12,735
Indirect installment	10,574		(2,468		)	861		(1,607		)	2,380			11,347
Consumer lines of credit	9,504		(522		)	98		(424		)	972			10,052
Total consumer loans	52,066		(6,392		)	1,369		(5,023		)	7,768			54,811
Total allowance on originated loans and leases	159,092		(15,092		)	2,059		(13,033		)	17,175			163,234
Purchased credit-impaired loans	640		(21		)	34		13			137			790
Other acquired loans	5,967		(222		)	791		569			(544		)	5,992
Total allowance on acquired loans	6,607		(243		)	825		582			(407		)	6,782
Total allowance for credit losses	$	165,699	$	(15,335	)	$	2,884	$	(12,451	)	$	16,768		$	170,016
Nine Months Ended September 30, 2017
Commercial real estate	$	46,635	$	(1,916	)	$	959	$	(957	)	$	2,445		$	48,123
Commercial and industrial	47,991		(16,791		)	955		(15,836		)	21,548			53,703
Commercial leases	3,280		(826		)	5		(821		)	2,370			4,829
Other	1,392		(3,180		)	978		(2,202		)	2,578			1,768
Total commercial loans and leases	99,298		(22,713		)	2,897		(19,816		)	28,941			108,423
Direct installment	21,391		(9,366		)	1,611		(7,755		)	7,041			20,677
Residential mortgages	10,082		(517		)	179		(338		)	2,991			12,735
Indirect installment	10,564		(6,804		)	2,256		(4,548		)	5,331			11,347
Consumer lines of credit	9,456		(1,563		)	413		(1,150		)	1,746			10,052
Total consumer loans	51,493		(18,250		)	4,459		(13,791		)	17,109			54,811
Total allowance on originated loans and leases	150,791		(40,963		)	7,356		(33,607		)	46,050			163,234
Purchased credit-impaired loans	572		(22		)	34		12			206			790
Other acquired loans	6,696		(778		)	1,956		1,178			(1,882		)	5,992
Total allowance on acquired loans	7,268		(800		)	1,990		1,190			(1,676		)	6,782
Total allowance for credit losses	$	158,059	$	(41,763	)	$	9,346	$	(32,417	)	$	44,374		$	170,016

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

TABLE 6.2

	Originated Allowance				Originated Loans and Leases Outstanding
(in thousands)	Individually Evaluated for Impairment		Collectively Evaluated for Impairment		Loans and Leases		Individually Evaluated for Impairment		Collectively Evaluated for Impairment
September 30, 2018
Commercial real estate	$	44	$	54,639	$	5,978,629	$	11,198	$	5,967,431
Commercial and industrial	4,712		47,824		3,892,822		21,690		3,871,132
Commercial leases	—		7,500		346,579		—		346,579
Other	—		2,078		34,732		—		34,732
Total commercial loans and leases	4,756		112,041		10,252,762		32,888		10,219,874
Direct installment	—		13,833		1,670,964		—		1,670,964
Residential mortgages	—		17,669		2,457,380		—		2,457,380
Indirect installment	—		14,453		1,880,487		—		1,880,487
Consumer lines of credit	—		10,559		1,116,376		—		1,116,376
Total consumer loans	—		56,514		7,125,207		—		7,125,207
Total	$	4,756	$	168,555	$	17,377,969	$	32,888	$	17,345,081
December 31, 2017
Commercial real estate	$	439	$	49,842	$	5,174,783	$	11,114	$	5,163,669
Commercial and industrial	3,215		48,748		3,495,247		9,872		3,485,375
Commercial leases	—		5,646		266,720		—		266,720
Other	—		1,843		17,063		—		17,063
Total commercial loans and leases	3,654		106,079		8,953,813		20,986		8,932,827
Direct installment	—		20,936		1,755,713		—		1,755,713
Residential mortgages	—		15,507		2,036,226		—		2,036,226
Indirect installment	—		11,967		1,448,268		—		1,448,268
Consumer lines of credit	—		10,539		1,151,470		—		1,151,470
Total consumer loans	—		58,949		6,391,677		—		6,391,677
Total	$	3,654	$	165,028	$	15,345,490	$	20,986	$	15,324,504

The above table excludes acquired loans that were pooled into groups of loans for evaluating impairment.

XML

LOAN SERVICING

9 Months Ended

Sep. 30, 2018

Transfers and Servicing [Abstract]

LOAN SERVICING

LOAN SERVICING

Mortgage Loan Servicing

We retain the servicing rights on certain mortgage loans sold. The unpaid principal balance of mortgage loans serviced for others, as of September 30, 2018 and December 31, 2017, is listed below:

TABLE 7.1

(in thousands)	September 30, 2018		December 31, 2017
Mortgage loans sold with servicing retained	$	3,802,891	$	3,256,548

The following table summarizes activity relating to mortgage loans sold with servicing retained:

TABLE 7.2

	Three Months Ended September 30,				Nine Months Ended September 30,
(in thousands)	2018		2017		2018		2017
Mortgage loans sold with servicing retained	$	295,243	$	305,752	$	814,256	$	1,469,352
Pretax gains resulting from above loan sales (1)	6,116		5,865		14,938		15,136
Mortgage servicing fees (1)	2,316		1,902		6,713		5,512

(1) Recorded in mortgage banking operations.

Following is a summary of the MSR activity:

TABLE 7.3

	Three Months Ended September 30,						Nine Months Ended September 30,
(in thousands)	2018			2017			2018			2017
Balance at beginning of period	$	32,970		$	24,444		$	29,053		$	13,521
Fair value of MSRs acquired	—			—			—			8,553
Additions	3,513			3,500			9,538			7,530
Payoffs and curtailments	(526		)	(432		)	(1,435		)	(1,012		)
Impairment charge	(13		)	—			(13		)	—
Amortization	(599		)	(626		)	(1,798		)	(1,706		)
Balance at end of period	$	35,345		$	26,886		$	35,345		$	26,886
Fair value, beginning of period	$	38,603		$	27,173		$	32,419		$	17,546
Fair value, end of period	41,715			29,004			41,715			29,004

The fair value of MSRs is highly sensitive to changes in assumptions and is determined by estimating the present value of the asset’s future cash flows utilizing market-based prepayment rates, discount rates and other assumptions validated through comparison to trade information, industry surveys and with the use of independent third party appraisals. Changes in prepayment speed assumptions have the most significant impact on the fair value of MSRs. Generally, as interest rates decline, mortgage loan prepayments accelerate due to increased refinance activity, which results in a decrease in the fair value of the MSR and as interest rates increase, mortgage loan prepayments decline, which results in an increase in the fair value of the MSR. Measurement of fair value is limited to the conditions existing and the assumptions utilized as of a particular point in time, and those assumptions may not be appropriate if they are applied at a different time.

Following is a summary of the sensitivity of the fair value of MSRs to changes in key assumptions:

TABLE 7.4

(dollars in thousands)	September 30, 2018			December 31, 2017
Weighted average life (months)	86.4			80.4
Constant prepayment rate (annualized)	9.0		%	9.9		%
Discount rate	9.9		%	9.9		%
Effect on fair value due to change in interest rates:
+0.25%	$	1,305		$	1,737
+0.50%	2,295			3,220
-0.25%	(1,666		)	(1,937		)
-0.50%	(3,775		)	(4,007		)

The sensitivity calculations above are hypothetical and should not be considered to be predictive of future performance. Changes in fair value based on adverse changes in assumptions generally cannot be extrapolated because the relationship of the changes in assumptions to fair value may not be linear. Also, in this table, the effects of an adverse variation in a particular assumption on the fair value of the MSRs is calculated without changing any other assumptions, while in reality, changes in one factor may result in changing another, which may magnify or contract the effect of the change.

SBA-Guaranteed Loan Servicing

We retain the servicing rights on SBA-guaranteed loans sold to investors. The standard sale structure under the SBA Secondary Participation Guaranty Agreement provides for us to retain a portion of the cash flow from the interest payment received on the loan, which is commonly known as a servicing spread. The unpaid principal balance of SBA-guaranteed loans serviced for investors, as of September 30, 2018 and December 31, 2017, was as follows:

TABLE 7.5

(in thousands)	September 30, 2018		December 31, 2017
SBA loans sold to investors with servicing retained	$	283,361	$	305,977

The following table summarizes activity relating to SBA loans sold with servicing retained:

TABLE 7.6

	Three Months Ended September 30,				Nine Months Ended September 30,
(in thousands)	2018		2017		2018		2017
SBA loans sold with servicing retained	$	10,138	$	16,443	$	33,651	$	42,172
Pretax gains resulting from above loan sales (1)	849		964		3,121		1,780
SBA servicing fees (1)	707		702		2,156		1,444

(1) Recorded in non-interest income.

Following is a summary of the activity in SBA servicing rights:

TABLE 7.7

	Three Months Ended September 30,						Nine Months Ended September 30,
(in thousands)	2018			2017			2018			2017
Balance at beginning of period	$	4,894		$	5,284		$	5,058		$	—
Fair value of servicing rights acquired	—			—			—			5,399
Additions	113			391			759			655
Impairment (charge) / recovery	(422		)	(50		)	(651		)	(50		)
Amortization	(280		)	(342		)	(861		)	(721		)
Balance at end of period	$	4,305		$	5,283		$	4,305		$	5,283
Fair value, beginning of period	$	4,894		$	5,299		$	5,058		$	—
Fair value, end of period	4,305			5,283			4,305			5,283

Following is a summary of key assumptions and the sensitivity of the SBA loan servicing rights to changes in these assumptions:

TABLE 7.8

	September 30, 2018														December 31, 2017
			Decline in fair value due to														Decline in fair value due to
(dollars in thousands)	Actual		10% adverse change			20% adverse change			1% adverse change			2% adverse change			Actual		10% adverse change			20% adverse change			1% adverse change			2% adverse change
Weighted-average life (months)	54.7														63.5
Constant prepayment rate (annualized)	11.54	%	$	(148	)	$	(287	)	$	—		$	—		9.29	%	$	(145	)	$	(284	)	$	—		$	—
Discount rate	19.37		—			—			(114		)	(221		)	14.87		—			—			(147		)	(286		)

The fair value of the SBA servicing rights is compared to the amortized basis. If the amortized basis exceeds the fair value, the asset is considered impaired and is written down to fair value through a valuation allowance on the asset and a charge against SBA income. We had a $0.9 million valuation allowance for SBA servicing rights as of September 30, 2018.

XML

BORROWINGS

9 Months Ended

Sep. 30, 2018

Debt Disclosure [Abstract]

BORROWINGS

BORROWINGS

Following is a summary of short-term borrowings:

TABLE 8.1

(in thousands)	September 30, 2018		December 31, 2017
Securities sold under repurchase agreements	$	265,029	$	256,017
Federal Home Loan Bank advances	1,985,000		2,285,000
Federal funds purchased	1,315,000		1,000,000
Subordinated notes	114,351		137,320
Total short-term borrowings	$	3,679,380	$	3,678,337

Borrowings with original maturities of one year or less are classified as short-term. Securities sold under repurchase agreements are 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. Of the total short-term FHLB advances, 67.0% and 75.7% had overnight maturities as of September 30, 2018 and December 31, 2017, respectively.

Following is a summary of long-term borrowings:

TABLE 8.2

(in thousands)	September 30, 2018		December 31, 2017
Federal Home Loan Bank advances	$	270,036	$	310,061
Subordinated notes	87,065		87,614
Junior subordinated debt	110,707		110,347
Other subordinated debt	159,241		160,151
Total long-term borrowings	$	627,049	$	668,173

Our banking affiliate has available credit with the FHLB of $7.5 billion, of which $2.3 billion was utilized as of September 30, 2018. These advances are secured by loans collateralized by residential mortgages, home equity lines of credit, 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 1.39% to 4.19% for the nine months ended September 30, 2018 and 0.95% to 4.19% for the year ended December 31, 2017.

The junior subordinated debt is comprised of the debt securities issued by FNB in relation to our unconsolidated subsidiary trusts (collectively, the Trusts), which are unconsolidated variable interest entities, and is included on the Balance Sheet in long-term borrowings. Since third-party investors are the primary beneficiaries, the Trusts are not consolidated in our Financial Statements. We record the distributions on the junior subordinated debt issued to the Trusts as interest expense.

The following table provides information relating to the Trusts as of September 30, 2018:

TABLE 8.3

(dollars in thousands)	Trust Preferred Securities		Common Securities		Junior Subordinated Debt		Stated Maturity Date	Interest Rate		Rate Reset Factor
F.N.B. Statutory Trust II	$	21,500	$	665	$	22,165	6/15/2036	3.98	%	LIBOR + 165 basis points (bps)
Omega Financial Capital Trust I	26,000		1,114		26,502		10/18/2034	4.55	%	LIBOR + 219 bps
Yadkin Valley Statutory Trust I	25,000		774		21,049		12/15/2037	3.65	%	LIBOR + 132 bps
FNB Financial Services Capital Trust I	25,000		774		21,972		9/30/2035	3.80	%	LIBOR + 146 bps
American Community Capital Trust II	10,000		310		10,442		12/15/2033	5.13	%	LIBOR + 280 bps
Crescent Financial Capital Trust I	8,000		248		8,577		10/7/2033	5.44	%	LIBOR + 310 bps
Total	$	115,500	$	3,885	$	110,707

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DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES

9 Months Ended

Sep. 30, 2018

Derivative Instruments and Hedging Activities Disclosure [Abstract]

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES

We are exposed to certain risks arising from both our business operations and economic conditions. We principally manage our exposures to a wide variety of business and operational risks through management of our core business activities. We manage economic risks, including interest rate risk, primarily by managing the amount, source, and duration of our 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. We also use derivative instruments to facilitate transactions on behalf of our customers.

All derivatives are carried on the Consolidated Balance Sheets at fair value and do not take into account the effects of master netting arrangements we have with other financial institutions. Credit risk is included in the determination of the estimated fair value of derivatives. Derivative assets are reported in the Consolidated Balance Sheets in other assets and derivative liabilities are reported in the Consolidated Balance Sheets in 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 our derivative assets and derivative liabilities which are not offset in the Balance Sheet.

TABLE 9.1

	September 30, 2018						December 31, 2017
	Notional		Fair Value				Notional		Fair Value
(in thousands)	Amount		Asset		Liability		Amount		Asset		Liability
Gross Derivatives
Subject to master netting arrangements:
Interest rate contracts – designated	$	855,000	$	—	$	4,760	$	705,000	$	228	$	1,982
Interest rate swaps – not designated	2,674,906		5,353		6,147		2,245,442		1,169		11,599
Equity contracts – not designated	1,180		23		—		1,180		51		—
Total subject to master netting arrangements	3,531,086		5,376		10,907		2,951,622		1,448		13,581
Not subject to master netting arrangements:
Interest rate swaps – not designated	2,674,906		12,214		64,006		2,245,442		27,233		15,303
Interest rate lock commitments – not designated	67,079		772		21		88,107		1,594		5
Forward delivery commitments – not designated	90,861		362		33		106,572		233		148
Credit risk contracts – not designated	201,781		23		51		235,196		39		109
Equity contracts – not designated	1,180		—		23		1,180		—		51
Total not subject to master netting arrangements	3,035,807		13,371		64,134		2,676,497		29,099		15,616
Total	$	6,566,893	$	18,747	$	75,041	$	5,628,119	$	30,547	$	29,197

Beginning in the first quarter of 2017, certain derivative exchanges have enacted a rule change which in effect results in the legal characterization of variation margin payments for certain derivative contracts as settlement of the derivatives mark-to-market exposure and not collateral. This rule change became effective for us in the first quarter of 2017. Accordingly, we have changed our reporting of certain derivatives to record variation margin on trades cleared through exchanges that have adopted the rule change as settled where we had previously recorded cash collateral. The daily settlement of the derivative exposure does not change or reset the contractual terms of the instrument.

Derivatives Designated as Hedging Instruments under GAAP

Interest Rate Contracts. We entered into interest rate derivative agreements to modify the interest rate characteristics of certain commercial loans and seven of our 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. Any ineffective portion of the gain or loss is reported in earnings immediately.

Following is a summary of key data related to interest rate contracts:

TABLE 9.2

(in thousands)	September 30, 2018		December 31, 2017
Notional amount	$	855,000	$	705,000
Fair value included in other assets	—		228
Fair value included in other liabilities	4,760		1,982

The following table shows amounts reclassified from accumulated other comprehensive income for the nine months ended September 30, 2018:

TABLE 9.3

(in thousands)	Total			Net of Tax
Reclassified from AOCI to interest income	$	(130	)	$	(103	)
Reclassified from AOCI to interest expense	(1,693		)	(1,337		)

As of September 30, 2018, the maximum length of time over which forecasted interest cash flows are hedged is 5 years. In the twelve months that follow September 30, 2018, we expect to reclassify from the amount currently reported in AOCI net derivative gains of $4.1 million ($3.2 million net of tax), in association with interest on the hedged loans and FHLB advances. 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 September 30, 2018.

There were no components of derivative gains or losses excluded from the assessment of hedge effectiveness related to these cash flow hedges. For the nine months ended September 30, 2018 and 2017, there was no hedge ineffectiveness. Also, during the nine months ended September 30, 2018 and 2017, 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

A description of interest rate swaps, interest rate lock commitments, forward delivery commitments and credit risk contracts can be found in Note 14 "Derivative Instruments and Hedging Activities" in the Consolidated Financial Statements of the Annual Report on Form 10-K for the year ended December 31, 2017 filed with the SEC on February 28, 2018.

Following is a summary of key data related to interest rate swaps:

TABLE 9.4

(in thousands)	September 30, 2018		December 31, 2017
Notional amount	$	5,349,812	$	4,490,884
Fair value included in other assets	17,567		28,402
Fair value included in other liabilities	70,153		26,902

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 Sheets with any resulting gain or loss recorded in current period earnings as other income or other expense.

Risk participation agreements sold with notional amounts totaling $121.7 million as of September 30, 2018 have remaining terms ranging from two months to nine years. Under these agreements, our maximum exposure assuming a customer defaults on their obligation to perform under certain derivative swap contracts with third parties would be $0.1 million at September 30, 2018 and $0.1 million at December 31, 2017. The fair values of risk participation agreements purchased and sold were $0.02 million and $(0.05) million, respectively, at September 30, 2018 and $0.04 million and $(0.1) million, respectively at December 31, 2017.

Counterparty Credit Risk

We are party to master netting arrangements with most of our swap derivative dealer counterparties. Collateral, usually marketable securities and/or cash, is exchanged between FNB and our counterparties, and is generally subject to thresholds and transfer minimums. For swap transactions that require central clearing, we post cash to our clearing agency. Collateral positions are settled or valued daily, and adjustments to amounts received and pledged by us 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 we had breached our agreements with our derivative counterparties we would be required to settle our obligations under the agreements at the termination value and would be required to pay an additional $0.4 million and $0.9 million as of September 30, 2018 and December 31, 2017, respectively, in excess of amounts previously posted as collateral with the respective counterparty.

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

TABLE 9.5

			Amount Not Offset in the Balance Sheet
(in thousands)	Net Amount Presented in the Balance Sheet		Financial Instruments		Cash Collateral		Net Amount
September 30, 2018
Derivative Assets
Interest rate contracts:
Designated	$	—	$	—	$	—	$	—
Not designated	5,353		5,279		—		74
Equity contracts – not designated	23		23		—		—
Total	$	5,376	$	5,302	$	—	$	74

Derivative Liabilities
Interest rate contracts:
Designated	$	4,760	$	4,760	$	—	$	—
Not designated	6,147		5,840		—		307
Total	$	10,907	$	10,600	$	—	$	307

December 31, 2017
Derivative Assets
Interest rate contracts:
Designated	$	228	$	228	$	—	$	—
Not designated	1,169		1,169		—		—
Equity contracts – not designated	51		51		—		—
Total	$	1,448	$	1,448	$	—	$	—

Derivative Liabilities
Interest rate contracts:
Designated	$	1,982	$	1,982	$	—	$	—
Not designated	11,599		10,940		—		659
Total	$	13,581	$	12,922	$	—	$	659

The following table presents the effect of certain derivative financial instruments on the Income Statement:

TABLE 9.6

		Nine Months Ended September 30,
(in thousands)	Income Statement Location	2018			2017
Interest Rate Contracts	Interest income - loans and leases	$	(130	)	$	1,185
Interest Rate Contracts	Interest expense – short-term borrowings	(1,693		)	1,059
Interest Rate Swaps	Other income	956			(592		)
Credit Risk Contracts	Other income	42			(1		)

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COMMITMENTS, CREDIT RISK AND CONTINGENCIES

9 Months Ended

Sep. 30, 2018

Commitments and Contingencies Disclosure [Abstract]

COMMITMENTS, CREDIT RISK AND CONTINGENCIES

COMMITMENTS, CREDIT RISK AND CONTINGENCIES

We have 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 Sheets. Our 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 commitments to extend credit 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:

TABLE 10.1

(in thousands)	September 30, 2018		December 31, 2017
Commitments to extend credit	$	7,349,375	$	6,957,822
Standby letters of credit	130,191		132,904

At September 30, 2018, funding of 77.3% of the commitments to extend credit was dependent on the financial condition of the customer. We have the ability to withdraw such commitments at our 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 us that may require payment at a future date. The credit risk involved in issuing letters of credit is actively monitored through review of the historical performance of our portfolios.

In addition to the above commitments, subordinated notes issued by FNB Financial Services, LP, a wholly-owned finance subsidiary, are fully and unconditionally guaranteed by FNB. These subordinated notes are included in the summaries of short-term borrowings and long-term borrowings in Note 8.

Other Legal Proceedings

In the ordinary course of business, we are routinely named as defendants in, or made parties to, pending and potential legal actions. Also, as regulated entities, we are subject to governmental and regulatory examinations, information-gathering requests, and may be subject to investigations and proceedings (both formal and informal). Such threatened claims, litigation, investigations, regulatory and administrative proceedings typically entail matters that are considered incidental to the normal conduct of business. Claims for significant monetary damages may be asserted in many of these types of legal actions, while claims for disgorgement, restitution, penalties and/or other remedial actions or sanctions may be sought in regulatory matters. In these instances, if we determine that we have meritorious defenses, we will engage in an aggressive defense. However, if management determines, in consultation with counsel, that settlement of a matter is in the best interest of our Company and our shareholders, we may do so. 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, we do 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 our financial position or liquidity, 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 adverse reputational impact, if any, associated with each such matter. In accordance with applicable accounting guidance, we establish 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. We 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, we do 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. We believe that our accruals for legal proceedings are appropriate and, in the aggregate, are not material to our consolidated financial position, although future accruals could have a material effect on net income in a given period.

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STOCK INCENTIVE PLANS

9 Months Ended

Sep. 30, 2018

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

STOCK INCENTIVE PLANS

STOCK INCENTIVE PLANS

Restricted Stock

We issue restricted stock awards to key employees under our Incentive Compensation Plan (Plan). We issue time-based awards and performance-based awards under this Plan, 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 our common stock on the grant date. The fair value of the performance-based awards is based on a Monte-Carlo simulation valuation of our common stock as of the grant date. The assumptions used for this valuation include stock price volatility, risk-free interest rate and dividend yield.

We issued 283,037 and 251,379 performance-based restricted stock units during the first nine months of 2018 and 2017. For performance-based restricted stock awards granted in 2018, we incorporated a new metric in which recipients will earn shares totaling between 0% and 175% of the number of units issued, based on our return on average tangible assets (ROATA) relative to a specified peer group of financial institutions over the three-year period. The result calculated using ROATA will then be adjusted by 75% to 125%, based on our total shareholder return (TSR) relative to the specified peer group of financial institutions. For performance-based restricted stock awards granted from 2014 through 2017, the recipients will earn shares, totaling between 0% and 175% of the number of units issued, based on our TSR relative to a specified peer group of financial institutions over the three-year period. These market-based restricted stock award units are included in the table below based on where we expect them to vest, regardless of the actual vesting percentages.

As of September 30, 2018, we had available up to 2,333,089 shares of common stock to issue under this Plan.

The following table details our issuance of restricted stock units and the aggregate weighted average grant date fair values under these plans for the years indicated.

TABLE 11.1

	Nine Months Ended September 30,
(dollars in thousands)	2018		2017
Restricted stock units	958,720		713,998
Weighted average grant date fair values	$	12,665	$	10,474

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.

The following table summarizes the activity relating to restricted stock units during the periods indicated:

TABLE 11.2

	Nine Months Ended September 30,
	2018				2017
	Units		Weighted Average Grant Price per Share		Units		Weighted Average Grant Price per Share
Unvested units outstanding at beginning of period	1,975,862		$	13.64	1,836,363		$	12.97
Granted	958,720		13.21		713,998		14.67
Vested	(257,712	)	13.18		(594,560	)	12.84
Forfeited/expired	(209,438	)	13.36		(27,109	)	13.94
Dividend reinvestment	60,938		13.72		46,969		13.79
Unvested units outstanding at end of period	2,528,370		13.55		1,975,661		13.63

The following table provides certain information related to restricted stock units:

TABLE 11.3

(in thousands)	Nine Months Ended September 30,
	2018		2017
Stock-based compensation expense	$	7,310	$	6,088
Tax benefit related to stock-based compensation expense	1,535		2,131
Fair value of units vested	3,472		8,046

As of September 30, 2018, there was $16.3 million of unrecognized compensation cost related to unvested restricted stock units, including $1.0 million that is subject to accelerated vesting under the Plan’s immediate vesting upon retirement. The components of the restricted stock units as of September 30, 2018 are as follows:

TABLE 11.4

(dollars in thousands)	Service- Based Units		Performance- Based Units		Total
Unvested restricted stock units	1,455,391		1,072,979		2,528,370
Unrecognized compensation expense	$	10,770	$	5,514	$	16,284
Intrinsic value	$	18,513	$	13,648	$	32,161
Weighted average remaining life (in years)	2.09		1.19		1.71

Stock Options

All outstanding stock options were assumed from acquisitions and are fully vested. Upon consummation of our acquisitions, all outstanding stock options issued by the acquired companies were converted into equivalent FNB stock options. We issue shares of treasury stock or authorized but unissued shares to satisfy stock options exercised.

The following table summarizes the activity relating to stock options during the periods indicated:

TABLE 11.5

	Nine Months Ended September 30,
	2018				2017
	Shares		Weighted Average Exercise Price per  Share		Shares		Weighted Average Exercise Price per  Share
Options outstanding at beginning of period	722,650		$	7.96	892,532		$	8.95
Assumed from acquisitions	—		—		207,645		8.92
Exercised	(214,781	)	7.91		(163,455	)	9.41
Forfeited/expired	(4,834	)	11.65		(56,687	)	11.16
Options outstanding and exercisable at end of period	503,035		7.97		880,035		8.72

The intrinsic value of outstanding and exercisable stock options at September 30, 2018 was $2.4 million. The aggregate intrinsic value represents the amount by which the fair value of underlying stock exceeds the option exercise price.

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RETIREMENT PLANS

9 Months Ended

Sep. 30, 2018

Retirement Benefits [Abstract]

RETIREMENT PLANS

RETIREMENT PLANS

Our 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, we match 100% of the first 6% that the employee defers. During the second quarter of 2018, we made a one-time discretionary contribution of $0.9 million to the vast majority of our employees following the tax reform that was enacted in December 2017. Additionally, we may provide a performance-based company contribution of up to 3% if we exceed annual financial goals. Our contribution expense is presented in the following table:

TABLE 12.1

	Nine Months Ended September 30,
(in thousands)	2018		2017
401(k) contribution expense	$	11,210	$	9,081

We also sponsor an Employee Retirement Income Security Act of 1974 (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.

Additionally, we sponsor a qualified non-contributory defined benefit pension plan and two supplemental non-qualified retirement plans that have been frozen. Although not required, we made a $4.0 million contribution to the non-contributory defined benefit pension plan during the third quarter of 2018 in order to meet the minimum funding requirements of this plan. The net periodic benefit credit for these plans includes the following components:

TABLE 12.2

	Three Months Ended September 30,						Nine Months Ended September 30,
(in thousands)	2018			2017			2018			2017
Service cost	$	(3	)	$	(3	)	$	(11	)	$	(11	)
Interest cost	1,549			1,463			4,669			4,417
Expected return on plan assets	(2,946		)	(2,427		)	(8,736		)	(7,281		)
Amortization:
Unrecognized prior service cost	1			2			1			6
Unrecognized loss	596			603			1,842			1,859
Net periodic pension credit	$	(803	)	$	(362	)	$	(2,235	)	$	(1,010	)

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INCOME TAXES

9 Months Ended

Sep. 30, 2018

Income Tax Disclosure [Abstract]

INCOME TAXES

INCOME TAXES

The TCJA includes several changes to existing U.S. tax laws that impact us, most notably a reduction of the U.S. corporate income tax rate from 35% to 21%, which became effective January 1, 2018. We recognized the initial income tax effects of the TCJA in our 2017 financial statements in accordance with Staff Accounting Bulletin No. 118, which provides SEC staff guidance for the application of ASC 740, Income Taxes, in the reporting period in which the TCJA was signed into law.We recorded a provisional amount of $54.0 million at December 31, 2017 related to the remeasurement of deferred tax balances. Upon final analysis of available information and refinement of our calculations during the nine months ended September 30, 2018, we decreased our provisional amount by $1.9 million which is included as a component of income tax expense from continuing operations. We consider the TCJA remeasurement of our deferred taxes to be complete.

Income Tax Expense

Federal and state income tax expense and the statutory tax rate and the actual effective tax rate consist of the following:

TABLE 13.1

	Three Months Ended September 30,						Nine Months Ended September 30,
(in thousands)	2018			2017			2018			2017
Current income taxes:
Federal taxes	$	7,683		$	16,569		$	31,132		$	29,859
State taxes	1,145			406			3,894			1,991
Total current income taxes	8,828			16,975			35,026			31,850
Deferred income taxes:
Federal taxes	12,952			14,088			28,110			38,238
State taxes	374			2,115			757			(809		)
Total deferred income taxes	13,326			16,203			28,867			37,429
Total income taxes	$	22,154		$	33,178		$	63,893		$	69,279
Statutory tax rate	21.0		%	35.0		%	21.0		%	35.0		%
Effective tax rate	18.0		%	29.9		%	19.0		%	28.4		%

The effective tax rate for the nine months ended September 30, 2018 was lower than the statutory tax rate of 21% due to the recognized adjustments to our provisional TCJA deferred tax remeasurement, and the tax benefits resulting from tax-exempt income on investments, loans, tax credits and income from BOLI. The lower effective tax rate for the nine months ended September 30, 2017 primarily related to merger expenses and an increase in the level of tax credits.

In the fourth quarter of 2017, we elected to change our accounting policy under ASU 2018-02, Income Statement - Reporting Comprehensive Income (Topic 220) to reclassify the income tax effects related to the TCJA from AOCI to retained earnings.

Deferred Income Taxes

Deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and tax purposes. Deferred tax assets and liabilities are measured based on the enacted tax rates that will apply in the years in which the temporary differences are expected to be recovered or paid. As such, during December 2017, we remeasured our deferred tax assets and liabilities as a result of the passage of the TCJA. The primary impact of this remeasurement was a reduction in deferred tax assets and liabilities in connection with the reduction of the U.S. corporate income tax rate from 35% to 21%.

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OTHER COMPREHENSIVE INCOME

9 Months Ended

Sep. 30, 2018

Equity [Abstract]

OTHER COMPREHENSIVE INCOME

OTHER COMPREHENSIVE INCOME

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

TABLE 14.1

(in thousands)	Unrealized Net Losses on Debt Securities Available for Sale			Unrealized Net Gains (Losses) on Derivative Instruments			Unrecognized Pension and Postretirement Obligations			Total
Nine Months Ended September 30, 2018
Balance at beginning of period	$	(29,626	)	$	5,407		$	(58,833	)	$	(83,052	)
Other comprehensive (loss) income before reclassifications	(50,970		)	6,991			1,431			(42,548		)
Amounts reclassified from AOCI	(24		)	(1,216		)	—			(1,240		)
Net current period other comprehensive (loss) income	(50,994		)	5,775			1,431			(43,788		)
Balance at end of period	$	(80,620	)	$	11,182		$	(57,402	)	$	(126,840	)

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

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

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EARNINGS PER COMMON SHARE

9 Months Ended

Sep. 30, 2018

Earnings Per Share [Abstract]

EARNINGS PER COMMON SHARE

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:

TABLE 15.1

	Three Months Ended September 30,				Nine Months Ended September 30,
(dollars in thousands, except per share data)	2018		2017		2018		2017
Net income	$	100,763	$	77,693	$	272,731	$	175,078
Less: Preferred stock dividends	2,010		2,010		6,030		6,030
Net income available to common stockholders	$	98,753	$	75,683	$	266,701	$	169,048
Basic weighted average common shares outstanding	324,435,939		323,410,932		324,118,236		295,012,986
Net effect of dilutive stock options, warrants and restricted stock	1,217,192		1,493,836		1,556,470		1,639,810
Diluted weighted average common shares outstanding	325,653,131		324,904,768		325,674,706		296,652,796
Earnings per common share:
Basic	$	0.30	$	0.23	$	0.82	$	0.57
Diluted	$	0.30	$	0.23	$	0.82	$	0.57

The following table shows the average shares excluded from the above calculation as their effect would have been anti-dilutive: 

TABLE 15.2

	Three Months Ended September 30,		Nine Months Ended September 30,
	2018	2017	2018	2017
Average shares excluded from the diluted earnings per common share calculation	86	1,842	59	1,059

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CASH FLOW INFORMATION

9 Months Ended

Sep. 30, 2018

Supplemental Cash Flow Elements [Abstract]

CASH FLOW INFORMATION

CASH FLOW INFORMATION

Following is a summary of supplemental cash flow information:

TABLE 16.1

	Nine Months Ended September 30,
	2018		2017
(in thousands)
Interest paid on deposits and other borrowings	$	157,933	$	89,014
Income taxes paid	14,000		52,500
Transfers of loans to other real estate owned	9,562		24,025
Financing of other real estate owned sold	—		19

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BUSINESS SEGMENTS

9 Months Ended

Sep. 30, 2018

Segment Reporting [Abstract]

BUSINESS SEGMENTS

BUSINESS SEGMENTS

We operate in three reportable segments: Community Banking, Wealth Management and Insurance.

• The Community Banking segment provides commercial and consumer banking services. Commercial banking solutions include corporate banking, small business banking, investment real estate financing, 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.

We also previously operated a Consumer Finance segment, which is no longer a reportable segment. This segment primarily made installment loans to individuals and purchased installment sales finance contracts from retail merchants. On August 31, 2018, as part of our strategy to enhance the overall positioning of our consumer banking operations, we sold 100 percent of the issued and outstanding capital stock of Regency to Mariner Finance, LLC. This transaction was completed to accomplish several strategic objectives, including enhancing the credit risk profile of the consumer loan portfolio, offering additional liquidity and selling a non-strategic business segment that no longer fits with our core business. The Consumer Finance segment is shown in the following tables to include Regency's financial information through August 31, 2018.

The following tables provide financial information for these segments of FNB. The information provided under the caption “Parent and Other” represents operations not considered to be reportable segments and/or general operating expenses of FNB, and includes the parent company, other non-bank subsidiaries and eliminations and adjustments to reconcile to the Consolidated Financial Statements.

TABLE 17.1

(in thousands)	Community Banking		Wealth Management		Insurance			Consumer Finance		Parent and Other			Consolidated
At or for the Three Months Ended September 30, 2018
Interest income	$	291,478	$	6	$	(16	)	$	6,250	$	97		$	297,815
Interest expense	58,336		—		—			634		4,058			63,028
Net interest income	233,142		6		(16		)	5,616		(3,961		)	234,787
Provision for credit losses	13,692		—		—			1,337		946			15,975
Non-interest income	55,708		11,129		4,266			459		3,272			74,834
Non-interest expense (1)	148,847		8,300		4,362			3,825		1,590			166,924
Amortization of intangibles	3,695		61		49			—		—			3,805
Income tax expense (benefit)	22,188		599		(26		)	234		(841		)	22,154
Net income (loss)	100,428		2,175		(135		)	679		(2,384		)	100,763
Total assets	32,526,809		26,381		19,323			—		45,082			32,617,595
Total intangibles	2,307,734		10,006		12,091			—		—			2,329,831
At or for the Three Months Ended September 30, 2017
Interest income	$	249,923	$	—	$	20		$	9,981	$	3,590		$	263,514
Interest expense	29,463		—		—			938		7,882			38,283
Net interest income	220,460		—		20			9,043		(4,292		)	225,231
Provision for credit losses	14,847		—		—			1,921		—			16,768
Non-interest income	52,020		10,006		4,209			741		(825		)	66,151
Non-interest expense (1)	142,015		7,451		3,907			5,261		304			158,938
Amortization of intangibles	4,689		64		52			—		—			4,805
Income tax expense (benefit)	33,238		904		105			1,038		(2,107		)	33,178
Net income (loss)	77,691		1,587		165			1,564		(3,314		)	77,693
Total assets	30,889,485		23,573		21,242			185,209		3,786			31,123,295
Total intangibles	2,327,495		10,224		12,179			1,809		—			2,351,707

(1) Excludes amortization of intangibles, which is presented separately.

(in thousands)	Community Banking		Wealth Management		Insurance		Consumer Finance		Parent and Other			Consolidated
At or for the Nine Months Ended September 30, 2018
Interest income	$	839,833	$	6	$	23	$	24,893	$	104		$	864,859
Interest expense	150,814		—		—		2,429		11,369			164,612
Net interest income	689,019		6		23		22,464		(11,265		)	700,247
Provision for credit losses	39,381		—		—		5,697		946			46,024
Non-interest income	160,157		33,370		12,264		1,750		(315		)	207,226
Non-interest expense (1)	457,189		25,272		11,968		14,348		4,214			512,991
Amortization of intangibles	11,499		182		153		—		—			11,834
Income tax expense (benefit)	65,199		1,769		55		1,152		(4,282		)	63,893
Net income (loss)	275,908		6,153		111		3,017		(12,458		)	272,731
Total assets	32,526,809		26,381		19,323		—		45,082			32,617,595
Total intangibles	2,307,734		10,006		12,091		—		—			2,329,831
At or for the Nine Months Ended September 30, 2017
Interest income	$	677,221	$	—	$	59	$	29,997	$	1,964		$	709,241
Interest expense	76,742		—		—		2,748		13,353			92,843
Net interest income	600,479		—		59		27,249		(11,389		)	616,398
Provision for credit losses	38,649		—		—		5,725		—			44,374
Non-interest income	145,768		29,376		12,030		2,221		(2,050		)	187,345
Non-interest expense (1)	451,740		22,978		10,678		15,780		1,120			502,296
Amortization of intangibles	12,365		190		161		—		—			12,716
Income tax expense (benefit)	69,749		2,266		462		3,178		(6,376		)	69,279
Net income (loss)	173,744		3,942		788		4,787		(8,183		)	175,078
Total assets	30,889,485		23,573		21,242		185,209		3,786			31,123,295
Total intangibles	2,327,495		10,224		12,179		1,809		—			2,351,707

(1) Excludes amortization of intangibles, which is presented separately.

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FAIR VALUE MEASUREMENTS

9 Months Ended

Sep. 30, 2018

Fair Value Disclosures [Abstract]

FAIR VALUE MEASUREMENTS

FAIR VALUE MEASUREMENTS

Refer to Note 24 "Fair Value Measurements" to the Consolidated Financial Statements of the Annual Report on Form 10-K for the year ended December 31, 2017 filed with the SEC on February 28, 2018 for a description of additional valuation methodologies for assets and liabilities measured at fair value on a recurring and non-recurring basis.

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

TABLE 18.1

(in thousands)	Level 1		Level 2		Level 3		Total
September 30, 2018
Assets Measured at Fair Value
Debt securities available for sale
U.S. government agencies	$	—	$	163,000	$	—	$	163,000
U.S. government-sponsored entities	—		356,267		—		356,267
Residential mortgage-backed securities:
Agency mortgage-backed securities	—		1,483,820		—		1,483,820
Agency collateralized mortgage obligations	—		1,046,481		—		1,046,481
Non-agency collateralized mortgage obligations	—		—		—		—
Commercial mortgage-backed securities	—		226,775		—		226,775
States of the U.S. and political subdivisions	—		20,681		—		20,681
Other debt securities	—		1,870		—		1,870
Total debt securities available for sale	—		3,298,894		—		3,298,894
Loans held for sale	—		24,943		—		24,943
Marketable equity securities
Fixed income mutual fund	—		—		—		—
Financial services industry	—		188		—		188
Total marketable equity securities	—		188		—		188
Derivative financial instruments
Trading	—		17,590		—		17,590
Not for trading	—		385		772		1,157
Total derivative financial instruments	—		17,975		772		18,747
Total assets measured at fair value on a recurring basis	$	—	$	3,342,000	$	772	$	3,342,772
Liabilities Measured at Fair Value
Derivative financial instruments
Trading	$	—	$	70,176	$	—	$	70,176
Not for trading	—		4,844		21		4,865
Total derivative financial instruments	—		75,020		21		75,041
Total liabilities measured at fair value on a recurring basis	$	—	$	75,020	$	21	$	75,041

(in thousands)	Level 1		Level 2		Level 3		Total
December 31, 2017
Assets Measured at Fair Value
Debt securities available for sale
U.S. government-sponsored entities	$	—	$	343,942	$	—	$	343,942
Residential mortgage-backed securities:
Agency mortgage-backed securities	—		1,598,874		—		1,598,874
Agency collateralized mortgage obligations	—		794,957		—		794,957
Non-agency collateralized mortgage obligations	—		1		—		1
States of the U.S. and political subdivisions	—		21,093		—		21,093
Other debt securities	—		4,670		—		4,670
Total debt securities available for sale	—		2,763,537		—		2,763,537
Equity securities available for sale
Fixed income mutual fund	161		—		—		161
Financial services industry	—		864		—		864
Total equity securities available for sale	161		864		—		1,025
Total securities available for sale	161		2,764,401		—		2,764,562
Loans held for sale	—		56,458		—		56,458
Derivative financial instruments
Trading	—		28,453		—		28,453
Not for trading	—		500		1,594		2,094
Total derivative financial instruments	—		28,953		1,594		30,547
Total assets measured at fair value on a recurring basis	$	161	$	2,849,812	$	1,594	$	2,851,567
Liabilities Measured at Fair Value
Derivative financial instruments
Trading	$	—	$	26,953	$	—	$	26,953
Not for trading	—		2,239		5		2,244
Total derivative financial instruments	—		29,192		5		29,197
Total liabilities measured at fair value on a recurring basis	$	—	$	29,192	$	5	$	29,197

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

TABLE 18.2

(in thousands)	Other Debt Securities			Equity Securities			Residential Non-Agency Collateralized Mortgage Obligations			Interest Rate Lock Commitments			Total
Nine Months Ended September 30, 2018
Balance at beginning of period	$	—		$	—		$	—		$	1,594		$	1,594
Purchases, issuances, sales and settlements:
Purchases	—			—			—			3,814			3,814
Settlements	—			—			—			(4,636		)	(4,636		)
Balance at end of period	$	—		$	—		$	—		$	772		$	772
Year Ended December 31, 2017
Balance at beginning of period	$	—		$	492		$	894		$	—		$	1,386
Total gains (losses) – realized/unrealized:
Included in earnings	—			—			4			—			4
Included in other comprehensive income	—			86			(6		)	—			80
Accretion included in earnings	(1		)	—			1			—			—
Purchases, issuances, sales and settlements:
Purchases	12,048			—			—			1,594			13,642
Sales/redemptions	(12,047		)	—			(874		)	—			(12,921		)
Settlements	—			—			(19		)	(4,569		)	(4,588		)
Transfers from Level 3	—			(578		)	—			—			(578		)
Transfers into Level 3	—			—			—			4,569			4,569
Balance at end of period	$	—		$	—		$	—		$	1,594		$	1,594

We review 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. There were no transfers of assets or liabilities between the hierarchy levels during the first nine months of 2018. During the first quarter of 2017, we acquired $12.0 million in other debt securities from YDKN that are measured at Level 3. These securities were sold during the second quarter of 2017. During the first nine months of 2017, we transferred equity securities totaling $0.6 million from Level 3 to Level 2, as a result of increased trading activity relating to these securities.

For the nine months ended September 30, 2018, we recorded in earnings $0.6 million of unrealized gains relating to the adoption of ASU 2016-01 and market value adjustments on marketable equity securities. These unrealized gains included in earnings are in the other non-interest income line item in the Consolidated Statement of Income. For the nine months ended September 30, 2017, 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 realized net securities gains included in earnings are in the net securities gains line item in the Consolidated Statements of Income.

In accordance with GAAP, from time to time, we measure 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 described in Note 24 "Fair Value Measurements" in our 2017 Form 10-K. 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:

TABLE 18.3

(in thousands)	Level 1		Level 2		Level 3		Total
September 30, 2018
Impaired loans	$	—	$	1,440	$	4,858	$	6,298
Other real estate owned	—		—		5,570		5,570
Other assets - SBA servicing asset	—		—		4,305		4,305
December 31, 2017
Impaired loans	$	—	$	2,813	$	1,297	$	4,110
Other real estate owned	—		10,513		10,823		21,336
Loans held for sale - SBA	—		—		36,432		36,432
Other assets - SBA servicing asset	—		—		5,058		5,058

Substantially all of the fair value amounts in the table above were estimated at a date during the nine months or twelve months ended September 30, 2018 and December 31, 2017, respectively. Consequently, the fair value information presented is not necessarily as of the period’s end.

Impaired loans measured or re-measured at fair value on a non-recurring basis during the nine months ended September 30, 2018 had a carrying amount of $6.3 million, which includes an allocated allowance for credit losses of $4.8 million. The allowance for credit losses includes a provision applicable to the current period fair value measurements of $6.0 million, which was included in the provision for credit losses for the nine months ended September 30, 2018.

OREO with a carrying amount of $8.4 million was written down to $5.6 million, resulting in a loss of $2.8 million, which was included in earnings for the nine months ended September 30, 2018.

Fair Value of Financial Instruments

Refer to Note 24 "Fair Value Measurements" to the Consolidated Financial Statements of the Annual Report on Form 10-K for the year ended December 31, 2017 filed with the SEC on February 28, 2018 for a description of methods and assumptions that were used to estimate the fair value of each financial instrument.

The fair values of our financial instruments are as follows:

TABLE 18.4

					Fair Value Measurements
(in thousands)	Carrying Amount		Fair  Value		Level 1		Level 2		Level 3
September 30, 2018
Financial Assets
Cash and cash equivalents	$	437,853	$	437,853	$	437,853	$	—	$	—
Debt securities available for sale	3,298,894		3,298,894		—		3,298,894		—
Debt securities held to maturity	3,206,345		3,032,947		—		3,032,947		—
Net loans and leases, including loans held for sale	21,703,605		21,270,133		—		24,943		21,245,190
Loan servicing rights	39,664		46,021		—		—		46,021
Marketable equity securities	188		188		—		188		—
Derivative assets	18,747		18,747		—		17,975		772
Accrued interest receivable	102,513		102,513		102,513		—		—
Financial Liabilities
Deposits	23,499,986		23,437,161		18,052,235		5,384,926		—
Short-term borrowings	3,679,380		3,679,933		3,679,933		—		—
Long-term borrowings	627,049		618,778		—		—		618,778
Derivative liabilities	75,041		75,041		—		75,020		21
Accrued interest payable	19,159		19,159		19,159		—		—
December 31, 2017
Financial Assets
Cash and cash equivalents	$	479,443	$	479,443	$	479,443	$	—	$	—
Securities available for sale	2,764,562		2,764,562		161		2,764,401		—
Debt securities held to maturity	3,242,268		3,218,379		—		3,218,379		—
Net loans and leases, including loans held for sale	20,916,277		20,661,196		—		56,458		20,604,738
Loan servicing rights	34,111		37,758		—		—		37,758
Derivative assets	30,547		30,547		—		28,953		1,594
Accrued interest receivable	94,254		94,254		94,254		—		—
Financial Liabilities
Deposits	22,399,725		22,359,182		17,779,246		4,579,936		—
Short-term borrowings	3,678,337		3,678,723		3,678,723		—		—
Long-term borrowings	668,173		675,489		—		—		675,489
Derivative liabilities	29,197		29,197		—		29,192		5
Accrued interest payable	12,480		12,480		12,480		—		—

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)

9 Months Ended

Sep. 30, 2018

Accounting Policies [Abstract]

Basis of Presentation

Basis of Presentation

Our accompanying Consolidated Financial Statements and these Notes to the Financial Statements include subsidiaries in which we have a controlling financial interest. We own and operate FNBPA, First National Trust Company, First National Investment Services Company, LLC, F.N.B. Investment Advisors, Inc., First National Insurance Agency, LLC, Bank Capital Services, LLC and F.N.B. Capital Corporation, LLC, and include 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 our financial position and results of operations in accordance with U.S. generally accepted accounting principles. All significant intercompany balances and transactions have been eliminated. Certain prior period amounts have been reclassified to conform to the current period presentation. Such reclassifications had no impact on our net income and stockholders’ equity. Events occurring subsequent to the date of the September 30, 2018 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.

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 FNB expects for the full year. These interim unaudited Consolidated Financial Statements should be read in conjunction with the audited Consolidated Financial Statements and Notes thereto included in FNB’s 2017 Annual Report on Form 10-K filed with the SEC on February 28, 2018. For a detailed description of our significant accounting policies, see Note 1 "Summary of Significant Accounting Policies" in the 2017 Form 10-K. The accounting policies presented below have been added or amended for newly material items or the adoption of new accounting standards.

Use of Estimates

Use of Estimates

Our accounting and reporting policies conform with GAAP. The preparation of Financial Statements in conformity with GAAP requires us 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, accounting for acquired loans, fair value of financial instruments, goodwill and other intangible assets, income taxes and deferred tax assets and litigation.

Revenue from Contracts with Customers

Revenue from Contracts with Customers

We earn certain revenues from contracts with customers. These revenues are recognized when control of the promised services is transferred to the customers in an amount that reflects the consideration we expect to be entitled to in an exchange for those services.

In determining the appropriate revenue recognition for our contracts with customers, we consider whether the contract has commercial substance and is approved by both parties with identifiable contractual rights, payment terms, and the collectability of consideration is probable. Generally, we satisfy our performance obligations upon the completion of services at the amount to which we have the right to invoice or charge under contracts with an original expected duration of one year or less. We apply this guidance on a portfolio basis to contracts with similar characteristics and for which we believe the results would not differ materially from applying this guidance to individual contracts.

Our services provided under contracts with customers are transferred at the point in time when the services are rendered. Generally, we do not defer incremental direct costs to obtain contracts with customers that would be amortized in one year or less under the practical expedient. These costs are recognized as expense, primarily salary and benefit expense, in the period incurred.

Deposit Services.We recognize revenue on deposit services based on published fees for services provided. Demand and savings deposit customers have the right to cancel their depository arrangements and withdraw their deposited funds at any time without prior notice. When services involve deposited funds that can be retrieved by customers without penalties, we consider the service contract term to be day-to-day, where each day represents the renewal of the contract. The contract does not extend beyond the services performed and revenue is recognized at the end of the contract term (daily) as the performance obligation is satisfied.

No deposit services fees exist for long-term deposit products beyond early withdrawal penalties, which are earned on these products at the time of early termination.

Revenue from deposit services fees are reduced where we have a history of waived or reduced fees by customer request or due to a customer service issue, by historical experience, or another acceptable method in the same period as the related revenues. Revenues from deposit services are reported in the Consolidated Statements of Income as service charges and in the Community Banking segment as non-interest income.

Wealth Management Services.Wealth advisory and trust services are provided on a month-to-month basis and invoiced as services are rendered. Fees are based on a fixed amount or a scale based on the level of services provided or assets under management. The customer has the right to terminate their services agreement at any time. We determine the value of services performed based on the fee schedule in effect at the time the services are performed. Revenues from wealth advisory and trust services are reported in the Consolidated Statements of Income as trust services and securities commissions and fees, and in the Wealth segment as non-interest income.

Insurance Services.Insurance services include full-service insurance brokerage services offering numerous lines of commercial and personal insurance through major carriers to businesses and individuals within our geographic markets. We recognize revenue on insurance contracts in effect based on contractually specified commission payments on premiums that are paid by the customer to the insurance carrier. Contracts are cancellable at any time and we have no performance obligation to the customers beyond the time the insurance is placed into effect. Revenues from insurance services are reported in the Consolidated Statements of Income as insurance commissions and fees, and in the Insurance segment as non-interest income.

Debt Securities

Debt Securities

Debt securities comprise a significant portion of our Consolidated Balance Sheets. Such securities can be classified as trading, HTM or AFS. As of September 30, 2018 and 2017, we did not hold any trading debt securities.

Debt securities HTM are the securities that management has the positive intent and ability to hold until their maturity. Such securities are carried at cost, adjusted for related amortization of premiums and accretion of discounts through interest income from securities, and subject to evaluation for OTTI.

Debt securities that are not classified as trading or HTM are classified as AFS. Such securities are carried at fair value with net unrealized gains and losses deemed to be temporary and OTTI attributable to non-credit factors reported separately as a component of other comprehensive income, net of tax.

We evaluate our debt securities in a loss position for OTTI on a quarterly basis at the individual security level based on our intent to sell. If we intend to sell the debt security or it is more likely than not we will be required to sell the security before recovery of its amortized cost basis, OTTI must be recognized in earnings equal to the entire difference between the investments’ amortized cost basis and its fair value. If we do not intend to sell the debt security and it is not more likely than not that we will be required to sell the security before recovery of its amortized cost basis, OTTI must be separated into the amount representing credit loss and the amount related to all other market factors. The amount related to credit loss will be recognized in earnings. The amount related to other market factors will be recognized in other comprehensive income, net of applicable taxes.

We perform our OTTI evaluation process in a consistent and systematic manner and include an evaluation of all available evidence. This process considers factors such as length of time and anticipated recovery period of the impairment, recent events specific to the issuer and recent experience regarding principal and interest payments.

Low Income Housing Tax Credit Partnerships

Low Income Housing Tax Credit (LIHTC) Partnerships

We invest in various affordable housing projects that qualify for LIHTCs. The net investments are recorded in other assets on the Consolidated Balance Sheets. These investments generate a return through the realization of federal tax credits. We use the proportional amortization method to account for a majority of our investments in these entities. LIHTCs that do not meet the requirements of the proportional amortization method are recognized using the equity method.

New Accounting Standards

Standard	Description	Required Date of Adoption	Financial Statements Impact
Cloud Computing Arrangement
ASU 2018-15, Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract	This Update aligns the requirements for capitalizing implementation costs of a hosting arrangement that is a service contract with that of internal-use software.	January 1, 2020 Early adoption is permitted.	We early adopted this Update in the third quarter of 2018 by a prospective application method. The adoption of this Update did not have a material effect on our Consolidated Financial Statements.

Standard	Description	Required Date of Adoption	Financial Statements Impact
Derivative and Hedging Activities
ASU 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities	This Update improves the financial reporting of hedging to better align with a company’s risk management activities. In addition, this Update makes certain targeted improvements to simplify the application of the current hedge accounting guidance.	January 1, 2019 Early adoption is permitted.	This Update is to be applied using a modified retrospective method. The presentation and disclosure guidance are applied prospectively. We are currently assessing the potential impact to our Consolidated Financial Statements.
Securities
ASU 2017-08, Receivables-Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities	This Update shortens the amortization period for the premium on certain purchased callable securities to the earliest call date. The accounting for purchased callable debt securities held at a discount does not change.	January 1, 2019 Early adoption is permitted.	This Update is to be applied using a modified retrospective transition method. The adoption of this Update is not expected to have a material effect on our Consolidated Financial Statements.
Retirement Benefits
ASU 2017-07, Compensation - Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost	This Update requires that an employer disaggregate the service cost component from the other components of net benefit cost. The amendments also provide explicit guidance on how to present the service cost component and the other components of net benefit cost in the Income Statement and allows only the service cost component of net benefit cost to be eligible for capitalization.	January 1, 2018	We adopted this Update in the first quarter of 2018 by a retrospective transition method. The adoption of this Update did not have a material effect on our Consolidated Financial Statements.
Statement of Cash Flows
ASU 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments (a consensus of the Emerging Issues Task Force)	This Update adds or clarifies guidance on eight cash flow issues.	January 1, 2018	We adopted this Update in the first quarter of 2018 by retrospective application. The adoption of this Update did not have a material effect on our Consolidated Financial Statements.

Standard	Description	Required Date of Adoption	Financial Statements Impact
Credit Losses
ASU 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments	This Update replaces the current incurred loss impairment methodology with a methodology that reflects current expected credit losses (commonly referred to as CECL) for most financial assets measured at amortized cost and certain other instruments, including loans, HTM debt securities, net investments in leases and off-balance sheet credit exposures. CECL requires loss estimates for the remaining life of the financial asset at the time the asset is originated or acquired, considering historical experience, current conditions and reasonable and supportable forecasts. In addition, the Update will require the use of a modified AFS debt security impairment model and eliminate the current accounting for purchased credit impaired loans and debt securities.	January 1, 2020 Early adoption is permitted for fiscal years beginning after December 15, 2018	This Update is to be applied using a cumulative-effect adjustment to retained earnings. The CECL model is a significant change from existing GAAP and may result in a material change to our accounting for financial instruments and regulatory capital. We have created a cross-functional steering committee to govern implementation as we continue to review and enhance our business processes, information systems and controls to support recognition and disclosures under this Update including designing and building the models that will be used to calculate the expected credit losses. The impact of this Update will be dependent on the portfolio composition, credit quality and forecasts of economic conditions at the time of adoption.
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)	This Update requires entities that sell prepaid stored-value products redeemable for goods, services or cash at third-party merchants to recognize breakage.	January 1, 2018	We adopted this Update in the first quarter of 2018. The adoption of this Update did not have a material effect on our Consolidated Financial Statements.
Leases
ASU 2016-02, Leases (Topic 842) ASU 2018-10, Codification Improvements to Topic 842, Leases ASU 2018-11, Leases (Topic 842), Targeted Improvements	These Updatesrequire lessees to put most leases on their Balance Sheets 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.	January 1, 2019 Early adoption is permitted.	These Updates are to be applied using a modified retrospective application including a number of optional practical expedients. We are in the process of classifying our existing lease portfolios, implementing a software solution, and assessing the potential impact to our Consolidated Financial Statements. We do not believe this update will materially impact our consolidated net income.

Standard	Description	Required Date of Adoption	Financial Statements Impact
Financial Instruments – Recognition and Measurement
ASU 2016-01, Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities	This Update amends the presentation and accounting for certain financial instruments, including liabilities measured at fair value under the FVO, and equity investments. The guidance also updates fair value presentation and disclosure requirements for financial instruments measured at amortized cost.	January 1, 2018	We adopted this Update in the first quarter of 2018 by a cumulative-effect adjustment. The adoption of this Update did not have a material effect on our Consolidated Financial Statements. During the first quarter of 2018, we transferred marketable equity securities totaling $1.1 million from securities AFS to other assets.
Revenue Recognition
ASU 2014-09, Revenue from Contracts with Customers (Topic 606)	This Update 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.	January 1, 2018	We adopted this Update in the first quarter of 2018 under the modified retrospective method. The adoption of this Update did not have a material effect on our Consolidated Financial Statements.

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SECURITIES (Tables)

9 Months Ended

Sep. 30, 2018

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:

TABLE 4.1

(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair  Value
Securities Available for Sale:
September 30, 2018
U.S. government agencies	$	163,752	$	36	$	(788	)	$	163,000
U.S. government-sponsored entities	362,967		—		(6,700		)	356,267
Residential mortgage-backed securities:
Agency mortgage-backed securities	1,540,049		356		(56,585		)	1,483,820
Agency collateralized mortgage obligations	1,083,989		—		(37,508		)	1,046,481
Commercial mortgage-backed securities	228,957		—		(2,182		)	226,775
States of the U.S. and political subdivisions	20,782		—		(101		)	20,681
Other debt securities	1,950		—		(80		)	1,870
Total debt securities available for sale	$	3,402,446	$	392	$	(103,944	)	$	3,298,894
December 31, 2017
U.S. government-sponsored entities	$	347,767	$	52	$	(3,877	)	$	343,942
Residential mortgage-backed securities:
Agency mortgage-backed securities	1,615,168		1,225		(17,519		)	1,598,874
Agency collateralized mortgage obligations	813,034		—		(18,077		)	794,957
Non-agency collateralized mortgage obligations	1		—		—			1
States of the U.S. and political subdivisions	21,151		6		(64		)	21,093
Other debt securities	4,913		—		(243		)	4,670
Total debt securities	2,802,034		1,283		(39,780		)	2,763,537
Equity securities	587		438		—			1,025
Total securities available for sale	$	2,802,621	$	1,721	$	(39,780	)	$	2,764,562

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

(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair  Value
Debt Securities Held to Maturity:
September 30, 2018
U.S. Treasury	$	500	$	95	$	—		$	595
U.S. government agencies	1,987		58		—			2,045
U.S. government-sponsored entities	230,011		—		(6,170		)	223,841
Residential mortgage-backed securities:
Agency mortgage-backed securities	1,078,270		225		(40,969		)	1,037,526
Agency collateralized mortgage obligations	797,940		219		(37,797		)	760,362
Commercial mortgage-backed securities	76,818		1		(1,864		)	74,955
States of the U.S. and political subdivisions	1,020,819		—		(87,196		)	933,623
Total debt securities held to maturity	$	3,206,345	$	598	$	(173,996	)	$	3,032,947
December 31, 2017
U.S. Treasury	$	500	$	134	$	—		$	634
U.S. government-sponsored entities	247,310		93		(4,388		)	243,015
Residential mortgage-backed securities:
Agency mortgage-backed securities	1,219,802		3,475		(9,058		)	1,214,219
Agency collateralized mortgage obligations	777,146		32		(20,095		)	757,083
Commercial mortgage-backed securities	80,786		414		(575		)	80,625
States of the U.S. and political subdivisions	916,724		13,209		(7,130		)	922,803
Total debt securities held to maturity	$	3,242,268	$	17,357	$	(41,246	)	$	3,218,379

Gross Gains and Gross Losses Realized on Sales of Securities

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

TABLE 4.2

	Three Months Ended September 30,					Nine Months Ended September 30,
(in thousands)	2018		2017			2018		2017
Gross gains	$	—	$	2,834		$	31	$	6,845
Gross losses	—		(57		)	—		(950		)
Net gains	$	—	$	2,777		$	31	$	5,895

Amortized Cost and Fair Value of Securities, by Contractual Maturities

As of September 30, 2018, the amortized cost and fair value of debt securities, by contractual maturities, were as follows:

TABLE 4.3

	Available for Sale				Held to Maturity
(in thousands)	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Due in one year or less	$	121,270	$	120,729	$	40,450	$	40,308
Due from one to five years	258,824		252,577		202,164		195,882
Due from five to ten years	57,811		57,603		109,606		105,281
Due after ten years	111,546		110,909		901,097		818,633
	549,451		541,818		1,253,317		1,160,104
Residential mortgage-backed securities:
Agency mortgage-backed securities	1,540,049		1,483,820		1,078,270		1,037,526
Agency collateralized mortgage obligations	1,083,989		1,046,481		797,940		760,362
Commercial mortgage-backed securities	228,957		226,775		76,818		74,955
Total debt securities	$	3,402,446	$	3,298,894	$	3,206,345	$	3,032,947

Schedule of Securities Pledged as Collateral

Following is information relating to securities pledged:

TABLE 4.4

(dollars in thousands)	September 30, 2018			December 31, 2017
Securities pledged (carrying value):
To secure public deposits, trust deposits and for other purposes as required by law	$	3,912,575		$	3,491,634
As collateral for short-term borrowings	282,682			263,756
Securities pledged as a percent of total securities	64.5		%	62.5		%

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

Following are summaries of the fair values and unrealized losses of temporarily impaired debt securities, segregated by length of impairment. The unrealized losses reported below are generally due to the higher interest rate environment.

TABLE 4.5

	Less than 12 Months						12 Months or More						Total
(dollars in thousands)	#	Fair  Value		Unrealized Losses			#	Fair  Value		Unrealized Losses			#	Fair  Value		Unrealized Losses
Debt Securities Available for Sale
September 30, 2018
U.S. government agencies	18	$	137,530	$	(788	)	—	$	—	$	—		18	$	137,530	$	(788	)
U.S. government-sponsored entities	6	136,678		(1,292		)	11	219,589		(5,408		)	17	356,267		(6,700		)
Residential mortgage-backed securities:
Agency mortgage-backed securities	40	666,851		(20,289		)	48	807,826		(36,296		)	88	1,474,677		(56,585		)
Agency collateralized mortgage obligations	17	568,169		(11,501		)	39	448,336		(26,007		)	56	1,016,505		(37,508		)
Commercial mortgage-backed securities	6	226,775		(2,182		)	—	—		—			6	226,775		(2,182		)
States of the U.S. and political subdivisions	7	11,672		(80		)	2	2,028		(21		)	9	13,700		(101		)
Other debt securities	—	—		—			1	1,870		(80		)	1	1,870		(80		)
Total temporarily impaired debt securities AFS	94	$	1,747,675	$	(36,132	)	101	$	1,479,649	$	(67,812	)	195	$	3,227,324	$	(103,944	)
December 31, 2017
U.S. government-sponsored entities	7	$	106,809	$	(363	)	10	$	201,485	$	(3,514	)	17	$	308,294	$	(3,877	)
Residential mortgage-backed securities:
Agency mortgage-backed securities	43	976,738		(7,723		)	28	473,625		(9,796		)	71	1,450,363		(17,519		)
Agency collateralized mortgage obligations	14	409,005		(6,231		)	33	335,452		(11,846		)	47	744,457		(18,077		)
States of the U.S. and political subdivisions	7	11,254		(55		)	1	879		(9		)	8	12,133		(64		)
Other debt securities	—	—		—			3	4,670		(243		)	3	4,670		(243		)
Total temporarily impaired debt securities AFS	71	$	1,503,806	$	(14,372	)	75	$	1,016,111	$	(25,408	)	146	$	2,519,917	$	(39,780	)

	Less than 12 Months						12 Months or More						Total
(dollars in thousands)	#	Fair  Value		Unrealized Losses			#	Fair  Value		Unrealized Losses			#	Fair  Value		Unrealized Losses
Debt Securities Held to Maturity
September 30, 2018
U.S. government-sponsored entities	3	$	39,696	$	(315	)	10	$	184,145	$	(5,855	)	13	$	223,841	$	(6,170	)
Residential mortgage-backed securities:
Agency mortgage-backed securities	66	609,169		(20,754		)	29	417,024		(20,215		)	95	1,026,193		(40,969		)
Agency collateralized mortgage obligations	15	307,031		(9,673		)	38	416,467		(28,124		)	53	723,498		(37,797		)
Commercial mortgage-backed securities	7	52,471		(1,184		)	4	21,371		(680		)	11	73,842		(1,864		)
States of the U.S. and political subdivisions	278	810,893		(60,672		)	42	122,730		(26,524		)	320	933,623		(87,196		)
Total temporarily impaired debt securities HTM	369	$	1,819,260	$	(92,598	)	123	$	1,161,737	$	(81,398	)	492	$	2,980,997	$	(173,996	)
December 31, 2017
U.S. government-sponsored entities	4	$	54,790	$	(239	)	10	$	185,851	$	(4,149	)	14	$	240,641	$	(4,388	)
Residential mortgage-backed securities:
Agency mortgage-backed securities	36	648,485		(4,855		)	11	183,989		(4,203		)	47	832,474		(9,058		)
Agency collateralized mortgage obligations	14	275,290		(1,701		)	35	473,257		(18,394		)	49	748,547		(20,095		)
Commercial mortgage-backed securities	3	26,399		(123		)	2	19,443		(452		)	5	45,842		(575		)
States of the U.S. and political subdivisions	16	56,739		(933		)	37	121,536		(6,197		)	53	178,275		(7,130		)
Total temporarily impaired debt securities HTM	73	$	1,061,703	$	(7,851	)	95	$	984,076	$	(33,395	)	168	$	2,045,779	$	(41,246	)

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LOANS AND LEASES (Tables)

9 Months Ended

Sep. 30, 2018

Receivables [Abstract]

Summary of Loans and Leases, Net of Unearned Income

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

TABLE 5.1

(in thousands)	Originated Loans and Leases		Acquired Loans		Total Loans and Leases
September 30, 2018
Commercial real estate	$	5,978,629	$	2,867,111	$	8,845,740
Commercial and industrial	3,892,822		470,635		4,363,457
Commercial leases	346,579		—		346,579
Other	34,732		—		34,732
Total commercial loans and leases	10,252,762		3,337,746		13,590,508
Direct installment	1,670,964		107,159		1,778,123
Residential mortgages	2,457,380		527,282		2,984,662
Indirect installment	1,880,487		162		1,880,649
Consumer lines of credit	1,116,376		489,085		1,605,461
Total consumer loans	7,125,207		1,123,688		8,248,895
Total loans and leases, net of unearned income	$	17,377,969	$	4,461,434	$	21,839,403
December 31, 2017
Commercial real estate	$	5,174,783	$	3,567,081	$	8,741,864
Commercial and industrial	3,495,247		675,420		4,170,667
Commercial leases	266,720		—		266,720
Other	17,063		—		17,063
Total commercial loans and leases	8,953,813		4,242,501		13,196,314
Direct installment	1,755,713		149,822		1,905,535
Residential mortgages	2,036,226		666,465		2,702,691
Indirect installment	1,448,268		165		1,448,433
Consumer lines of credit	1,151,470		594,323		1,745,793
Total consumer loans	6,391,677		1,410,775		7,802,452
Total loans and leases, net of unearned income	$	15,345,490	$	5,653,276	$	20,998,766

Certain Information Relating to Commercial Real Estate Loans

The following table shows certain information relating to commercial real estate loans:

TABLE 5.2

(dollars in thousands)	September 30, 2018			December 31, 2017
Commercial construction, acquisition and development loans	$	1,146,612		$	1,170,175
Percent of total loans and leases	5.3		%	5.6		%
Commercial real estate:
Percent owner-occupied	34.7		%	35.3		%
Percent non-owner-occupied	65.3		%	64.7		%

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 Sheets are as follows:

TABLE 5.3

(in thousands)	September 30, 2018		December 31, 2017
Accounted for under ASC 310-30:
Outstanding balance	$	4,110,019	$	5,176,015
Carrying amount	3,830,823		4,834,256
Accounted for under ASC 310-20:
Outstanding balance	644,077		835,130
Carrying amount	626,041		812,322
Total acquired loans:
Outstanding balance	4,754,096		6,011,145
Carrying amount	4,456,864		5,646,578

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.

TABLE 5.4

	Nine Months Ended September 30,
(in thousands)	2018			2017
Balance at beginning of period	$	708,481		$	467,070
Acquisitions	—			444,715
Reduction due to unexpected early payoffs	(117,469		)	(90,097		)
Reclass from non-accretable difference	184,545			163,714
Disposals/transfers	(444		)	(341		)
Other	(412		)	1,129
Accretion	(169,605		)	(164,219		)
Balance at end of period	$	605,096		$	821,971

Summary of Non-Performing Assets

Following is a summary of non-performing assets:

TABLE 5.5

(dollars in thousands)	September 30, 2018			December 31, 2017
Non-accrual loans	$	79,899		$	74,635
Troubled debt restructurings	22,322			23,481
Total non-performing loans	102,221			98,116
Other real estate owned	35,685			40,606
Total non-performing assets	$	137,906		$	138,722
Asset quality ratios:
Non-performing loans / total loans and leases	0.47		%	0.47		%
Non-performing loans + OREO / total loans and leases + OREO	0.63		%	0.66		%
Non-performing assets / total assets	0.42		%	0.44		%

Age Analysis of Past Due Loans, by Class

The following tables provide an analysis of the aging of loans by class segregated by loans and leases originated and loans acquired:

TABLE 5.6

(in thousands)	30-89 Days Past Due		>90 Days Past Due and Still Accruing		Non- Accrual		Total Past Due (4)		Current		Total Loans and Leases
Originated Loans and Leases
September 30, 2018
Commercial real estate	$	12,978	$	2	$	18,243	$	31,223	$	5,947,406	$	5,978,629
Commercial and industrial	7,069		3		27,323		34,395		3,858,427		3,892,822
Commercial leases	712		—		5,526		6,238		340,341		346,579
Other	80		141		1,000		1,221		33,511		34,732
Total commercial loans and leases	20,839		146		52,092		73,077		10,179,685		10,252,762
Direct installment	7,779		663		7,888		16,330		1,654,634		1,670,964
Residential mortgages	19,274		1,754		6,110		27,138		2,430,242		2,457,380
Indirect installment	8,889		505		2,263		11,657		1,868,830		1,880,487
Consumer lines of credit	5,039		904		3,583		9,526		1,106,850		1,116,376
Total consumer loans	40,981		3,826		19,844		64,651		7,060,556		7,125,207
Total originated loans and leases	$	61,820	$	3,972	$	71,936	$	137,728	$	17,240,241	$	17,377,969
December 31, 2017
Commercial real estate	$	8,273	$	1	$	24,773	$	33,047	$	5,141,736	$	5,174,783
Commercial and industrial	8,948		3		17,077		26,028		3,469,219		3,495,247
Commercial leases	1,382		41		1,574		2,997		263,723		266,720
Other	83		153		1,000		1,236		15,827		17,063
Total commercial loans and leases	18,686		198		44,424		63,308		8,890,505		8,953,813
Direct installment	13,192		4,466		8,896		26,554		1,729,159		1,755,713
Residential mortgages	14,096		2,832		5,771		22,699		2,013,527		2,036,226
Indirect installment	10,313		611		2,240		13,164		1,435,104		1,448,268
Consumer lines of credit	5,859		1,014		2,313		9,186		1,142,284		1,151,470
Total consumer loans	43,460		8,923		19,220		71,603		6,320,074		6,391,677
Total originated loans and leases	$	62,146	$	9,121	$	63,644	$	134,911	$	15,210,579	$	15,345,490

(in thousands)	30-89 Days Past Due		>90 Days Past Due and Still Accruing		Non- Accrual		Total Past Due (1) (2) (3)		Current		(Discount) Premium			Total Loans
Acquired Loans
September 30, 2018
Commercial real estate	$	33,024	$	48,044	$	3,030	$	84,098	$	2,956,931	$	(173,918	)	$	2,867,111
Commercial and industrial	1,704		2,801		4,252		8,757		492,430		(30,552		)	470,635
Total commercial loans	34,728		50,845		7,282		92,855		3,449,361		(204,470		)	3,337,746
Direct installment	4,168		1,798		—		5,966		101,669		(476		)	107,159
Residential mortgages	15,237		6,428		—		21,665		522,844		(17,227		)	527,282
Indirect installment	—		1		—		1		—		161			162
Consumer lines of credit	6,699		2,244		681		9,624		490,358		(10,897		)	489,085
Total consumer loans	26,104		10,471		681		37,256		1,114,871		(28,439		)	1,123,688
Total acquired loans	$	60,832	$	61,316	$	7,963	$	130,111	$	4,564,232	$	(232,909	)	$	4,461,434
December 31, 2017
Commercial real estate	$	34,928	$	63,092	$	3,975	$	101,995	$	3,657,152	$	(192,066	)	$	3,567,081
Commercial and industrial	3,187		6,452		5,663		15,302		698,265		(38,147		)	675,420
Total commercial loans	38,115		69,544		9,638		117,297		4,355,417		(230,213		)	4,242,501
Direct installment	5,267		2,013		—		7,280		141,386		1,156			149,822
Residential mortgages	17,191		15,139		—		32,330		675,499		(41,364		)	666,465
Indirect installment	—		1		—		1		10		154			165
Consumer lines of credit	6,353		3,253		1,353		10,959		596,298		(12,934		)	594,323
Total consumer loans	28,811		20,406		1,353		50,570		1,413,193		(52,988		)	1,410,775
Total acquired loans	$	66,926	$	89,950	$	10,991	$	167,867	$	5,768,610	$	(283,201	)	$	5,653,276

(1) Past due information for acquired loans is based on the contractual balance outstanding at September 30, 2018 and December 31, 2017.

(2) Acquired loans are considered performing upon acquisition, regardless of whether the customer is contractually delinquent, if we can reasonably estimate the timing and amount of expected cash flows on such loans. In these instances, we do not consider acquired contractually delinquent loans to be non-accrual or non-performing and continue 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, we determine we are no longer able to reasonably estimate the timing and amount of expected cash flows on such loans. We do not recognize interest income on acquired loans considered non-accrual or non-performing.

(3) Approximately $28.5 million of acquired past-due or non-accrual loans were sold during the second quarter of 2018.

(4) Approximately $14.7 million of originated past-due or non-accrual loans were sold during the second quarter of 2018.

Summary of Commercial Loans by Credit Quality

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

TABLE 5.8

	Commercial Loan and Lease Credit Quality Categories
(in thousands)	Pass		Special Mention		Substandard		Doubtful		Total
Originated Loans and Leases
September 30, 2018
Commercial real estate	$	5,716,992	$	144,800	$	116,793	$	44	$	5,978,629
Commercial and industrial	3,626,199		187,032		74,879		4,712		3,892,822
Commercial leases	335,439		1,623		9,517		—		346,579
Other	33,481		110		1,141		—		34,732
Total originated commercial loans and leases	$	9,712,111	$	333,565	$	202,330	$	4,756	$	10,252,762
December 31, 2017
Commercial real estate	$	4,922,872	$	152,744	$	98,728	$	439	$	5,174,783
Commercial and industrial	3,266,966		132,975		92,091		3,215		3,495,247
Commercial leases	260,235		4,425		2,060		—		266,720
Other	15,866		43		1,154		—		17,063
Total originated commercial loans and leases	$	8,465,939	$	290,187	$	194,033	$	3,654	$	8,953,813
Acquired Loans
September 30, 2018
Commercial real estate	$	2,481,679	$	181,813	$	203,448	$	171	$	2,867,111
Commercial and industrial	408,326		20,605		41,704		—		470,635
Total acquired commercial loans	$	2,890,005	$	202,418	$	245,152	$	171	$	3,337,746
December 31, 2017
Commercial real estate	$	3,102,788	$	250,987	$	213,089	$	217	$	3,567,081
Commercial and industrial	603,611		26,059		45,661		89		675,420
Total acquired commercial loans	$	3,706,399	$	277,046	$	258,750	$	306	$	4,242,501

Summary of Consumer Loans by Payment Status

Following is a table showing consumer loans by payment status:

TABLE 5.9

	Consumer Loan Credit Quality by Payment Status
(in thousands)	Performing		Non- Performing		Total
Originated loans
September 30, 2018
Direct installment	$	1,656,375	$	14,589	$	1,670,964
Residential mortgages	2,441,374		16,006		2,457,380
Indirect installment	1,878,224		2,263		1,880,487
Consumer lines of credit	1,111,004		5,372		1,116,376
Total originated consumer loans	$	7,086,977	$	38,230	$	7,125,207
December 31, 2017
Direct installment	$	1,739,060	$	16,653	$	1,755,713
Residential mortgages	2,019,816		16,410		2,036,226
Indirect installment	1,445,833		2,435		1,448,268
Consumer lines of credit	1,147,576		3,894		1,151,470
Total originated consumer loans	$	6,352,285	$	39,392	$	6,391,677
Acquired loans
September 30, 2018
Direct installment	$	107,091	$	68	$	107,159
Residential mortgages	527,282		—		527,282
Indirect installment	162		—		162
Consumer lines of credit	487,823		1,262		489,085
Total acquired consumer loans	$	1,122,358	$	1,330	$	1,123,688
December 31, 2017
Direct installment	$	149,751	$	71	$	149,822
Residential mortgages	666,465		—		666,465
Indirect installment	165		—		165
Consumer lines of credit	592,384		1,939		594,323
Total acquired consumer loans	$	1,408,765	$	2,010	$	1,410,775

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:

TABLE 5.10

(in thousands)	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 Nine Months Ended September 30, 2018
Commercial real estate	$	20,051	$	17,576	$	635	$	18,211	$	44	$	16,360
Commercial and industrial	31,219		19,533		8,272		27,805		4,712		27,096
Commercial leases	5,526		5,526		—		5,526		—		3,372
Total commercial loans and leases	56,796		42,635		8,907		51,542		4,756		46,828
Direct installment	17,554		14,589		—		14,589		—		15,191
Residential mortgages	17,316		16,006		—		16,006		—		16,887
Indirect installment	4,576		2,263		—		2,263		—		2,208
Consumer lines of credit	7,330		5,372		—		5,372		—		5,172
Total consumer loans	46,776		38,230		—		38,230		—		39,458
Total	$	103,572	$	80,865	$	8,907	$	89,772	$	4,756	$	86,286
At or for the Year Ended December 31, 2017
Commercial real estate	$	27,718	$	21,748	$	2,906	$	24,654	$	439	$	24,413
Commercial and industrial	29,307		11,595		4,457		16,052		3,215		23,907
Commercial leases	1,574		1,574		—		1,574		—		1,386
Total commercial loans and leases	58,599		34,917		7,363		42,280		3,654		49,706
Direct installment	19,375		16,653		—		16,653		—		16,852
Residential mortgages	17,754		16,410		—		16,410		—		15,984
Indirect installment	5,709		2,435		—		2,435		—		2,279
Consumer lines of credit	5,039		3,894		—		3,894		—		3,815
Total consumer loans	47,877		39,392		—		39,392		—		38,930
Total	$	106,476	$	74,309	$	7,363	$	81,672	$	3,654	$	88,636

Additional Allowance for Credit Losses Relating to Acquired Loans

Following is a summary of the allowance for credit losses required for acquired loans due to changes in credit quality subsequent to the acquisition date:

TABLE 5.11

(in thousands)	September 30, 2018			December 31, 2017
Commercial real estate	$	2,440		$	4,976
Commercial and industrial	639			(415		)
Total commercial loans	3,079			4,561
Direct installment	967			1,553
Residential mortgages	520			484
Indirect installment	226			177
Consumer lines of credit	(222		)	(77		)
Total consumer loans	1,491			2,137
Total allowance on acquired loans	$	4,570		$	6,698

Summary of the composition of total TDRs

Following is a summary of the composition of total TDRs:

TABLE 5.12

(in thousands)	Originated		Acquired		Total
September 30, 2018
Accruing:
Performing	$	16,963	$	67	$	17,030
Non-performing	19,060		3,262		22,322
Non-accrual	8,621		91		8,712
Total TDRs	$	44,644	$	3,420	$	48,064
December 31, 2017
Accruing:
Performing	$	19,538	$	266	$	19,804
Non-performing	20,173		3,308		23,481
Non-accrual	10,472		234		10,706
Total TDRs	$	50,183	$	3,808	$	53,991

Reserve for Commercial TDRs Included in Allowance for Credit Losses

The reserve for commercial TDRs included in the allowance for credit losses is presented in the following table:

TABLE 5.13

(in thousands)	September 30, 2018		December 31, 2017
Specific reserves for commercial TDRs	$	—	$	95
Pooled reserves for individual commercial loans	551		469

Summary of Troubled Debt Restructurings by Class of Loans

Following is a summary of TDR loans, by class:

TABLE 5.14

	Three Months Ended September 30, 2018					Nine Months Ended September 30, 2018
(dollars in thousands)	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	3	$	507	$	494	4	$	656	$	614
Commercial and industrial	1	15		—		12	662		633
Total commercial loans	4	522		494		16	1,318		1,247
Direct installment	15	650		638		65	3,215		2,941
Residential mortgages	4	283		279		13	898		854
Indirect installment	—	—		—		—	—		—
Consumer lines of credit	11	540		549		25	1,199		1,004
Total consumer loans	30	1,473		1,466		103	5,312		4,799
Total	34	$	1,995	$	1,960	119	$	6,630	$	6,046

	Three Months Ended September 30, 2017					Nine Months Ended September 30, 2017
(dollars in thousands)	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	—	$	—	$	—	2	$	595	$	560
Commercial and industrial	1	15		10		3	3,568		4,169
Total commercial loans	1	15		10		5	4,163		4,729
Direct installment	141	1,037		919		474	4,014		3,580
Residential mortgages	14	946		952		30	1,539		1,446
Indirect installment	3	5		4		12	36		32
Consumer lines of credit	9	77		50		51	1,080		901
Total consumer loans	167	2,065		1,925		567	6,669		5,959
Total	168	$	2,080	$	1,935	572	$	10,832	$	10,688

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

Following is a summary of originated TDRs, by class, 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.

TABLE 5.15

	Three Months Ended September 30, 2018			Nine Months Ended September 30, 2018
(dollars in thousands)	Number of Contracts	Recorded Investment		Number of Contracts	Recorded Investment
Commercial real estate	3	$	1,078	3	$	1,078
Commercial and industrial	2	16		1	9
Total commercial loans	5	1,094		4	1,087
Direct installment	3	$	274	5	$	332
Residential mortgages	2	108		4	224
Indirect installment	—	—		—	—
Consumer lines of credit	—	—		3	252
Total consumer loans	5	382		12	808
Total	10	$	1,476	16	$	1,895

	Three Months Ended September 30, 2017			Nine Months Ended September 30, 2017
(dollars in thousands)	Number of Contracts	Recorded Investment		Number of Contracts	Recorded Investment
Commercial real estate	1	$	463	1	$	463
Commercial and industrial	—	—		3	326
Total commercial loans	1	463		4	789
Direct installment	39	265		91	278
Residential mortgages	1	80		4	264
Indirect installment	4	22		12	22
Consumer lines of credit	3	26		4	89
Total consumer loans	47	393		111	653
Total	48	$	856	115	$	1,442

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ALLOWANCE FOR CREDIT LOSSES (Tables)

9 Months Ended

Sep. 30, 2018

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:

TABLE 6.1

(in thousands)	Balance at Beginning of Period		Charge- Offs			Recoveries		Net Charge- Offs			Provision for Credit Losses			Balance at End of Period
Three Months Ended September 30, 2018
Commercial real estate	$	50,587	$	(727	)	$	567	$	(160	)	$	4,256		$	54,683
Commercial and industrial	53,689		(2,432		)	373		(2,059		)	906			52,536
Commercial leases	7,039		(51		)	2		(49		)	510			7,500
Other	1,996		(918		)	274		(644		)	726			2,078
Total commercial loans and leases	113,311		(4,128		)	1,216		(2,912		)	6,398			116,797
Direct installment	20,279		(9,436		)	276		(9,160		)	2,714			13,833
Residential mortgages	15,163		(77		)	7		(70		)	2,576			17,669
Indirect installment	13,401		(2,061		)	620		(1,441		)	2,493			14,453
Consumer lines of credit	10,461		(832		)	258		(574		)	672			10,559
Total consumer loans	59,304		(12,406		)	1,161		(11,245		)	8,455			56,514
Total allowance on originated loans and leases	172,615		(16,534		)	2,377		(14,157		)	14,853			173,311
Purchased credit-impaired loans	624		—			—		—			—			624
Other acquired loans	3,335		(713		)	202		(511		)	1,122			3,946
Total allowance on acquired loans	3,959		(713		)	202		(511		)	1,122			4,570
Total allowance for credit losses	$	176,574	$	(17,247	)	$	2,579	$	(14,668	)	$	15,975		$	177,881
Nine Months Ended September 30, 2018
Commercial real estate	$	50,281	$	(5,206	)	$	1,669	$	(3,537	)	$	7,939		$	54,683
Commercial and industrial	51,963		(14,479		)	1,899		(12,580		)	13,153			52,536
Commercial leases	5,646		(258		)	26		(232		)	2,086			7,500
Other	1,843		(3,293		)	843		(2,450		)	2,685			2,078
Total commercial loans and leases	109,733		(23,236		)	4,437		(18,799		)	25,863			116,797
Direct installment	20,936		(15,828		)	1,179		(14,649		)	7,546			13,833
Residential mortgages	15,507		(470		)	114		(356		)	2,518			17,669
Indirect installment	11,967		(6,688		)	2,489		(4,199		)	6,685			14,453
Consumer lines of credit	10,539		(2,468		)	441		(2,027		)	2,047			10,559
Total consumer loans	58,949		(25,454		)	4,223		(21,231		)	18,796			56,514
Total allowance on originated loans and leases	168,682		(48,690		)	8,660		(40,030		)	44,659			173,311
Purchased credit-impaired loans	635		—			—		—			(11		)	624
Other acquired loans	6,063		(5,098		)	1,605		(3,493		)	1,376			3,946
Total allowance on acquired loans	6,698		(5,098		)	1,605		(3,493		)	1,365			4,570
Total allowance for credit losses	$	175,380	$	(53,788	)	$	10,265	$	(43,523	)	$	46,024		$	177,881

(in thousands)	Balance at Beginning of Period		Charge- Offs			Recoveries		Net Charge- Offs			Provision for Credit Losses			Balance at End of Period
Three Months Ended September 30, 2017
Commercial real estate	$	46,958	$	(610	)	$	93	$	(517	)	$	1,682		$	48,123
Commercial and industrial	54,108		(6,592		)	298		(6,294		)	5,889			53,703
Commercial leases	4,122		(112		)	1		(111		)	818			4,829
Other	1,838		(1,386		)	298		(1,088		)	1,018			1,768
Total commercial loans and leases	107,026		(8,700		)	690		(8,010		)	9,407			108,423
Direct installment	20,736		(3,247		)	402		(2,845		)	2,786			20,677
Residential mortgages	11,252		(155		)	8		(147		)	1,630			12,735
Indirect installment	10,574		(2,468		)	861		(1,607		)	2,380			11,347
Consumer lines of credit	9,504		(522		)	98		(424		)	972			10,052
Total consumer loans	52,066		(6,392		)	1,369		(5,023		)	7,768			54,811
Total allowance on originated loans and leases	159,092		(15,092		)	2,059		(13,033		)	17,175			163,234
Purchased credit-impaired loans	640		(21		)	34		13			137			790
Other acquired loans	5,967		(222		)	791		569			(544		)	5,992
Total allowance on acquired loans	6,607		(243		)	825		582			(407		)	6,782
Total allowance for credit losses	$	165,699	$	(15,335	)	$	2,884	$	(12,451	)	$	16,768		$	170,016
Nine Months Ended September 30, 2017
Commercial real estate	$	46,635	$	(1,916	)	$	959	$	(957	)	$	2,445		$	48,123
Commercial and industrial	47,991		(16,791		)	955		(15,836		)	21,548			53,703
Commercial leases	3,280		(826		)	5		(821		)	2,370			4,829
Other	1,392		(3,180		)	978		(2,202		)	2,578			1,768
Total commercial loans and leases	99,298		(22,713		)	2,897		(19,816		)	28,941			108,423
Direct installment	21,391		(9,366		)	1,611		(7,755		)	7,041			20,677
Residential mortgages	10,082		(517		)	179		(338		)	2,991			12,735
Indirect installment	10,564		(6,804		)	2,256		(4,548		)	5,331			11,347
Consumer lines of credit	9,456		(1,563		)	413		(1,150		)	1,746			10,052
Total consumer loans	51,493		(18,250		)	4,459		(13,791		)	17,109			54,811
Total allowance on originated loans and leases	150,791		(40,963		)	7,356		(33,607		)	46,050			163,234
Purchased credit-impaired loans	572		(22		)	34		12			206			790
Other acquired loans	6,696		(778		)	1,956		1,178			(1,882		)	5,992
Total allowance on acquired loans	7,268		(800		)	1,990		1,190			(1,676		)	6,782
Total allowance for credit losses	$	158,059	$	(41,763	)	$	9,346	$	(32,417	)	$	44,374		$	170,016

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 originated loan and lease balances by class:

TABLE 6.2

	Originated Allowance				Originated Loans and Leases Outstanding
(in thousands)	Individually Evaluated for Impairment		Collectively Evaluated for Impairment		Loans and Leases		Individually Evaluated for Impairment		Collectively Evaluated for Impairment
September 30, 2018
Commercial real estate	$	44	$	54,639	$	5,978,629	$	11,198	$	5,967,431
Commercial and industrial	4,712		47,824		3,892,822		21,690		3,871,132
Commercial leases	—		7,500		346,579		—		346,579
Other	—		2,078		34,732		—		34,732
Total commercial loans and leases	4,756		112,041		10,252,762		32,888		10,219,874
Direct installment	—		13,833		1,670,964		—		1,670,964
Residential mortgages	—		17,669		2,457,380		—		2,457,380
Indirect installment	—		14,453		1,880,487		—		1,880,487
Consumer lines of credit	—		10,559		1,116,376		—		1,116,376
Total consumer loans	—		56,514		7,125,207		—		7,125,207
Total	$	4,756	$	168,555	$	17,377,969	$	32,888	$	17,345,081
December 31, 2017
Commercial real estate	$	439	$	49,842	$	5,174,783	$	11,114	$	5,163,669
Commercial and industrial	3,215		48,748		3,495,247		9,872		3,485,375
Commercial leases	—		5,646		266,720		—		266,720
Other	—		1,843		17,063		—		17,063
Total commercial loans and leases	3,654		106,079		8,953,813		20,986		8,932,827
Direct installment	—		20,936		1,755,713		—		1,755,713
Residential mortgages	—		15,507		2,036,226		—		2,036,226
Indirect installment	—		11,967		1,448,268		—		1,448,268
Consumer lines of credit	—		10,539		1,151,470		—		1,151,470
Total consumer loans	—		58,949		6,391,677		—		6,391,677
Total	$	3,654	$	165,028	$	15,345,490	$	20,986	$	15,324,504

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LOAN SERVICING (Tables)

9 Months Ended

Sep. 30, 2018

Mortgage Servicing Rights [Member]

Servicing Assets at Fair Value [Line Items]

Servicing Asset at Amortized Cost

The unpaid principal balance of mortgage loans serviced for others, as of September 30, 2018 and December 31, 2017, is listed below:

TABLE 7.1

(in thousands)	September 30, 2018		December 31, 2017
Mortgage loans sold with servicing retained	$	3,802,891	$	3,256,548

The following table summarizes activity relating to mortgage loans sold with servicing retained:

TABLE 7.2

	Three Months Ended September 30,				Nine Months Ended September 30,
(in thousands)	2018		2017		2018		2017
Mortgage loans sold with servicing retained	$	295,243	$	305,752	$	814,256	$	1,469,352
Pretax gains resulting from above loan sales (1)	6,116		5,865		14,938		15,136
Mortgage servicing fees (1)	2,316		1,902		6,713		5,512

(1) Recorded in mortgage banking operations.

Following is a summary of the MSR activity:

TABLE 7.3

	Three Months Ended September 30,						Nine Months Ended September 30,
(in thousands)	2018			2017			2018			2017
Balance at beginning of period	$	32,970		$	24,444		$	29,053		$	13,521
Fair value of MSRs acquired	—			—			—			8,553
Additions	3,513			3,500			9,538			7,530
Payoffs and curtailments	(526		)	(432		)	(1,435		)	(1,012		)
Impairment charge	(13		)	—			(13		)	—
Amortization	(599		)	(626		)	(1,798		)	(1,706		)
Balance at end of period	$	35,345		$	26,886		$	35,345		$	26,886
Fair value, beginning of period	$	38,603		$	27,173		$	32,419		$	17,546
Fair value, end of period	41,715			29,004			41,715			29,004

Schedule of Assumptions for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement

Following is a summary of the sensitivity of the fair value of MSRs to changes in key assumptions:

TABLE 7.4

(dollars in thousands)	September 30, 2018			December 31, 2017
Weighted average life (months)	86.4			80.4
Constant prepayment rate (annualized)	9.0		%	9.9		%
Discount rate	9.9		%	9.9		%
Effect on fair value due to change in interest rates:
+0.25%	$	1,305		$	1,737
+0.50%	2,295			3,220
-0.25%	(1,666		)	(1,937		)
-0.50%	(3,775		)	(4,007		)

SBA-Guaranteed Loan Servicing [Member]

Servicing Assets at Fair Value [Line Items]

Servicing Asset at Amortized Cost

The unpaid principal balance of SBA-guaranteed loans serviced for investors, as of September 30, 2018 and December 31, 2017, was as follows:

TABLE 7.5

(in thousands)	September 30, 2018		December 31, 2017
SBA loans sold to investors with servicing retained	$	283,361	$	305,977

The following table summarizes activity relating to SBA loans sold with servicing retained:

TABLE 7.6

	Three Months Ended September 30,				Nine Months Ended September 30,
(in thousands)	2018		2017		2018		2017
SBA loans sold with servicing retained	$	10,138	$	16,443	$	33,651	$	42,172
Pretax gains resulting from above loan sales (1)	849		964		3,121		1,780
SBA servicing fees (1)	707		702		2,156		1,444

(1) Recorded in non-interest income.

Following is a summary of the activity in SBA servicing rights:

TABLE 7.7

	Three Months Ended September 30,						Nine Months Ended September 30,
(in thousands)	2018			2017			2018			2017
Balance at beginning of period	$	4,894		$	5,284		$	5,058		$	—
Fair value of servicing rights acquired	—			—			—			5,399
Additions	113			391			759			655
Impairment (charge) / recovery	(422		)	(50		)	(651		)	(50		)
Amortization	(280		)	(342		)	(861		)	(721		)
Balance at end of period	$	4,305		$	5,283		$	4,305		$	5,283
Fair value, beginning of period	$	4,894		$	5,299		$	5,058		$	—
Fair value, end of period	4,305			5,283			4,305			5,283

Schedule of Assumptions for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement

Following is a summary of key assumptions and the sensitivity of the SBA loan servicing rights to changes in these assumptions:

TABLE 7.8

	September 30, 2018														December 31, 2017
			Decline in fair value due to														Decline in fair value due to
(dollars in thousands)	Actual		10% adverse change			20% adverse change			1% adverse change			2% adverse change			Actual		10% adverse change			20% adverse change			1% adverse change			2% adverse change
Weighted-average life (months)	54.7														63.5
Constant prepayment rate (annualized)	11.54	%	$	(148	)	$	(287	)	$	—		$	—		9.29	%	$	(145	)	$	(284	)	$	—		$	—
Discount rate	19.37		—			—			(114		)	(221		)	14.87		—			—			(147		)	(286		)

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BORROWINGS (Tables)

9 Months Ended

Sep. 30, 2018

Debt Disclosure [Abstract]

Summary of Short-Term Borrowings

Following is a summary of short-term borrowings:

TABLE 8.1

(in thousands)	September 30, 2018		December 31, 2017
Securities sold under repurchase agreements	$	265,029	$	256,017
Federal Home Loan Bank advances	1,985,000		2,285,000
Federal funds purchased	1,315,000		1,000,000
Subordinated notes	114,351		137,320
Total short-term borrowings	$	3,679,380	$	3,678,337

Summary of Long-Term Borrowings

Following is a summary of long-term borrowings:

TABLE 8.2

(in thousands)	September 30, 2018		December 31, 2017
Federal Home Loan Bank advances	$	270,036	$	310,061
Subordinated notes	87,065		87,614
Junior subordinated debt	110,707		110,347
Other subordinated debt	159,241		160,151
Total long-term borrowings	$	627,049	$	668,173

Junior Subordinated Debt Trusts

The following table provides information relating to the Trusts as of September 30, 2018:

TABLE 8.3

(dollars in thousands)	Trust Preferred Securities		Common Securities		Junior Subordinated Debt		Stated Maturity Date	Interest Rate		Rate Reset Factor
F.N.B. Statutory Trust II	$	21,500	$	665	$	22,165	6/15/2036	3.98	%	LIBOR + 165 basis points (bps)
Omega Financial Capital Trust I	26,000		1,114		26,502		10/18/2034	4.55	%	LIBOR + 219 bps
Yadkin Valley Statutory Trust I	25,000		774		21,049		12/15/2037	3.65	%	LIBOR + 132 bps
FNB Financial Services Capital Trust I	25,000		774		21,972		9/30/2035	3.80	%	LIBOR + 146 bps
American Community Capital Trust II	10,000		310		10,442		12/15/2033	5.13	%	LIBOR + 280 bps
Crescent Financial Capital Trust I	8,000		248		8,577		10/7/2033	5.44	%	LIBOR + 310 bps
Total	$	115,500	$	3,885	$	110,707

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DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES (Tables)

9 Months Ended

Sep. 30, 2018

Derivative Instruments and Hedging Activities Disclosures [Line Items]

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 our derivative assets and derivative liabilities which are not offset in the Balance Sheet.

TABLE 9.1

	September 30, 2018						December 31, 2017
	Notional		Fair Value				Notional		Fair Value
(in thousands)	Amount		Asset		Liability		Amount		Asset		Liability
Gross Derivatives
Subject to master netting arrangements:
Interest rate contracts – designated	$	855,000	$	—	$	4,760	$	705,000	$	228	$	1,982
Interest rate swaps – not designated	2,674,906		5,353		6,147		2,245,442		1,169		11,599
Equity contracts – not designated	1,180		23		—		1,180		51		—
Total subject to master netting arrangements	3,531,086		5,376		10,907		2,951,622		1,448		13,581
Not subject to master netting arrangements:
Interest rate swaps – not designated	2,674,906		12,214		64,006		2,245,442		27,233		15,303
Interest rate lock commitments – not designated	67,079		772		21		88,107		1,594		5
Forward delivery commitments – not designated	90,861		362		33		106,572		233		148
Credit risk contracts – not designated	201,781		23		51		235,196		39		109
Equity contracts – not designated	1,180		—		23		1,180		—		51
Total not subject to master netting arrangements	3,035,807		13,371		64,134		2,676,497		29,099		15,616
Total	$	6,566,893	$	18,747	$	75,041	$	5,628,119	$	30,547	$	29,197

Summary of Amounts Reclassified from Accumulated Other Comprehensive Income (AOCI)

The following table shows amounts reclassified from accumulated other comprehensive income for the nine months ended September 30, 2018:

TABLE 9.3

(in thousands)	Total			Net of Tax
Reclassified from AOCI to interest income	$	(130	)	$	(103	)
Reclassified from AOCI to interest expense	(1,693		)	(1,337		)

Effect of Derivative Financial Instruments on Income Statement

The following table presents the effect of certain derivative financial instruments on the Income Statement:

TABLE 9.6

		Nine Months Ended September 30,
(in thousands)	Income Statement Location	2018			2017
Interest Rate Contracts	Interest income - loans and leases	$	(130	)	$	1,185
Interest Rate Contracts	Interest expense – short-term borrowings	(1,693		)	1,059
Interest Rate Swaps	Other income	956			(592		)
Credit Risk Contracts	Other income	42			(1		)

Designated as Hedging Instrument [Member]

Derivative Instruments and Hedging Activities Disclosures [Line Items]

Summary of Key Data Related to Interest Rate

Following is a summary of key data related to interest rate contracts:

TABLE 9.2

(in thousands)	September 30, 2018		December 31, 2017
Notional amount	$	855,000	$	705,000
Fair value included in other assets	—		228
Fair value included in other liabilities	4,760		1,982

Not Designated as Hedging Instrument [Member]

Derivative Instruments and Hedging Activities Disclosures [Line Items]

Summary of Key Data Related to Interest Rate

Following is a summary of key data related to interest rate swaps:

TABLE 9.4

(in thousands)	September 30, 2018		December 31, 2017
Notional amount	$	5,349,812	$	4,490,884
Fair value included in other assets	17,567		28,402
Fair value included in other liabilities	70,153		26,902

Counter Party [Member]

Derivative Instruments and Hedging Activities Disclosures [Line Items]

Derivative Assets

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

			Amount Not Offset in the Balance Sheet
(in thousands)	Net Amount Presented in the Balance Sheet		Financial Instruments		Cash Collateral	Net Amount
September 30, 2018
Derivative Assets
Interest rate contracts:
Designated	$	—	$	—	—	$	—
Not designated	5,353		5,279		—	74
Equity contracts – not designated	23		23		—	—
Total	$	5,376	$	5,302	—	$	74

December 31, 2017
Derivative Assets
Interest rate contracts:
Designated	$	228	$	228	$	—	$	—
Not designated	1,169		1,169		—		—
Equity contracts – not designated	51		51		—		—
Total	$	1,448	$	1,448	$	—	$	—

Derivative Liabilities

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

			Amount Not Offset in the Balance Sheet
(in thousands)	Net Amount Presented in the Balance Sheet		Financial Instruments		Cash Collateral	Net Amount
September 30, 2018
Derivative Liabilities
Interest rate contracts:
Designated	$	4,760	$	4,760	—	$	—
Not designated	6,147		5,840		—	307
Total	$	10,907	$	10,600	—	$	307

December 31, 2017
Derivative Liabilities
Interest rate contracts:
Designated	$	1,982	$	1,982	$	—	$	—
Not designated	11,599		10,940		—		659
Total	$	13,581	$	12,922	$	—	$	659

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COMMITMENTS, CREDIT RISK AND CONTINGENCIES (Tables)

9 Months Ended

Sep. 30, 2018

Commitments and Contingencies Disclosure [Abstract]

Summary of Off-Balance Sheet Credit Risk Information

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

TABLE 10.1

(in thousands)	September 30, 2018		December 31, 2017
Commitments to extend credit	$	7,349,375	$	6,957,822
Standby letters of credit	130,191		132,904

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STOCK INCENTIVE PLANS (Tables)

9 Months Ended

Sep. 30, 2018

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

Schedule of Share-based Compensation, Restricted Stock Units Activity

The following table details our issuance of restricted stock units and the aggregate weighted average grant date fair values under these plans for the years indicated.

TABLE 11.1

	Nine Months Ended September 30,
(dollars in thousands)	2018		2017
Restricted stock units	958,720		713,998
Weighted average grant date fair values	$	12,665	$	10,474

Summary of Activity Relating to Restricted Stock Units

The following table summarizes the activity relating to restricted stock units during the periods indicated:

TABLE 11.2

	Nine Months Ended September 30,
	2018				2017
	Units		Weighted Average Grant Price per Share		Units		Weighted Average Grant Price per Share
Unvested units outstanding at beginning of period	1,975,862		$	13.64	1,836,363		$	12.97
Granted	958,720		13.21		713,998		14.67
Vested	(257,712	)	13.18		(594,560	)	12.84
Forfeited/expired	(209,438	)	13.36		(27,109	)	13.94
Dividend reinvestment	60,938		13.72		46,969		13.79
Unvested units outstanding at end of period	2,528,370		13.55		1,975,661		13.63

Schedule of Certain Information Related to Restricted Stock Units

The following table provides certain information related to restricted stock units:

TABLE 11.3

(in thousands)	Nine Months Ended September 30,
	2018		2017
Stock-based compensation expense	$	7,310	$	6,088
Tax benefit related to stock-based compensation expense	1,535		2,131
Fair value of units vested	3,472		8,046

Components of Restricted Stock Units

The components of the restricted stock units as of September 30, 2018 are as follows:

TABLE 11.4

(dollars in thousands)	Service- Based Units		Performance- Based Units		Total
Unvested restricted stock units	1,455,391		1,072,979		2,528,370
Unrecognized compensation expense	$	10,770	$	5,514	$	16,284
Intrinsic value	$	18,513	$	13,648	$	32,161
Weighted average remaining life (in years)	2.09		1.19		1.71

Summary of Activity Relating to Stock Options

The following table summarizes the activity relating to stock options during the periods indicated:

TABLE 11.5

	Nine Months Ended September 30,
	2018				2017
	Shares		Weighted Average Exercise Price per  Share		Shares		Weighted Average Exercise Price per  Share
Options outstanding at beginning of period	722,650		$	7.96	892,532		$	8.95
Assumed from acquisitions	—		—		207,645		8.92
Exercised	(214,781	)	7.91		(163,455	)	9.41
Forfeited/expired	(4,834	)	11.65		(56,687	)	11.16
Options outstanding and exercisable at end of period	503,035		7.97		880,035		8.72

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RETIREMENT PLANS (Tables)

9 Months Ended

Sep. 30, 2018

Retirement Benefits [Abstract]

Schedule of Contribution Expense

Our contribution expense is presented in the following table:

TABLE 12.1

	Nine Months Ended September 30,
(in thousands)	2018		2017
401(k) contribution expense	$	11,210	$	9,081

Net Periodic Benefit Credit for Defined Benefit Plans

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

TABLE 12.2

	Three Months Ended September 30,						Nine Months Ended September 30,
(in thousands)	2018			2017			2018			2017
Service cost	$	(3	)	$	(3	)	$	(11	)	$	(11	)
Interest cost	1,549			1,463			4,669			4,417
Expected return on plan assets	(2,946		)	(2,427		)	(8,736		)	(7,281		)
Amortization:
Unrecognized prior service cost	1			2			1			6
Unrecognized loss	596			603			1,842			1,859
Net periodic pension credit	$	(803	)	$	(362	)	$	(2,235	)	$	(1,010	)

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INCOME TAXES (Tables)

9 Months Ended

Sep. 30, 2018

Income Tax Disclosure [Abstract]

Schedule of Components of Income Tax Expense (Benefit)

Federal and state income tax expense and the statutory tax rate and the actual effective tax rate consist of the following:

TABLE 13.1

	Three Months Ended September 30,						Nine Months Ended September 30,
(in thousands)	2018			2017			2018			2017
Current income taxes:
Federal taxes	$	7,683		$	16,569		$	31,132		$	29,859
State taxes	1,145			406			3,894			1,991
Total current income taxes	8,828			16,975			35,026			31,850
Deferred income taxes:
Federal taxes	12,952			14,088			28,110			38,238
State taxes	374			2,115			757			(809		)
Total deferred income taxes	13,326			16,203			28,867			37,429
Total income taxes	$	22,154		$	33,178		$	63,893		$	69,279
Statutory tax rate	21.0		%	35.0		%	21.0		%	35.0		%
Effective tax rate	18.0		%	29.9		%	19.0		%	28.4		%

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OTHER COMPREHENSIVE INCOME (Tables)

9 Months Ended

Sep. 30, 2018

Equity [Abstract]

Changes in AOCI, Net of Tax, by Component

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

TABLE 14.1

(in thousands)	Unrealized Net Losses on Debt Securities Available for Sale			Unrealized Net Gains (Losses) on Derivative Instruments			Unrecognized Pension and Postretirement Obligations			Total
Nine Months Ended September 30, 2018
Balance at beginning of period	$	(29,626	)	$	5,407		$	(58,833	)	$	(83,052	)
Other comprehensive (loss) income before reclassifications	(50,970		)	6,991			1,431			(42,548		)
Amounts reclassified from AOCI	(24		)	(1,216		)	—			(1,240		)
Net current period other comprehensive (loss) income	(50,994		)	5,775			1,431			(43,788		)
Balance at end of period	$	(80,620	)	$	11,182		$	(57,402	)	$	(126,840	)

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EARNINGS PER COMMON SHARE (Tables)

9 Months Ended

Sep. 30, 2018

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:

TABLE 15.1

	Three Months Ended September 30,				Nine Months Ended September 30,
(dollars in thousands, except per share data)	2018		2017		2018		2017
Net income	$	100,763	$	77,693	$	272,731	$	175,078
Less: Preferred stock dividends	2,010		2,010		6,030		6,030
Net income available to common stockholders	$	98,753	$	75,683	$	266,701	$	169,048
Basic weighted average common shares outstanding	324,435,939		323,410,932		324,118,236		295,012,986
Net effect of dilutive stock options, warrants and restricted stock	1,217,192		1,493,836		1,556,470		1,639,810
Diluted weighted average common shares outstanding	325,653,131		324,904,768		325,674,706		296,652,796
Earnings per common share:
Basic	$	0.30	$	0.23	$	0.82	$	0.57
Diluted	$	0.30	$	0.23	$	0.82	$	0.57

Schedule of Average Shares Excluded from Diluted Earnings Per Common Share Calculation

The following table shows the average shares excluded from the above calculation as their effect would have been anti-dilutive: 

TABLE 15.2

	Three Months Ended September 30,		Nine Months Ended September 30,
	2018	2017	2018	2017
Average shares excluded from the diluted earnings per common share calculation	86	1,842	59	1,059

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CASH FLOW INFORMATION (Tables)

9 Months Ended

Sep. 30, 2018

Supplemental Cash Flow Elements [Abstract]

Summary of Supplemental Cash Flow Information

Following is a summary of supplemental cash flow information:

TABLE 16.1

	Nine Months Ended September 30,
	2018		2017
(in thousands)
Interest paid on deposits and other borrowings	$	157,933	$	89,014
Income taxes paid	14,000		52,500
Transfers of loans to other real estate owned	9,562		24,025
Financing of other real estate owned sold	—		19

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BUSINESS SEGMENTS (Tables)

9 Months Ended

Sep. 30, 2018

Segment Reporting [Abstract]

Financial Information for Segments

The following tables provide financial information for these segments of FNB. The information provided under the caption “Parent and Other” represents operations not considered to be reportable segments and/or general operating expenses of FNB, and includes the parent company, other non-bank subsidiaries and eliminations and adjustments to reconcile to the Consolidated Financial Statements.

TABLE 17.1

(in thousands)	Community Banking		Wealth Management		Insurance			Consumer Finance		Parent and Other			Consolidated
At or for the Three Months Ended September 30, 2018
Interest income	$	291,478	$	6	$	(16	)	$	6,250	$	97		$	297,815
Interest expense	58,336		—		—			634		4,058			63,028
Net interest income	233,142		6		(16		)	5,616		(3,961		)	234,787
Provision for credit losses	13,692		—		—			1,337		946			15,975
Non-interest income	55,708		11,129		4,266			459		3,272			74,834
Non-interest expense (1)	148,847		8,300		4,362			3,825		1,590			166,924
Amortization of intangibles	3,695		61		49			—		—			3,805
Income tax expense (benefit)	22,188		599		(26		)	234		(841		)	22,154
Net income (loss)	100,428		2,175		(135		)	679		(2,384		)	100,763
Total assets	32,526,809		26,381		19,323			—		45,082			32,617,595
Total intangibles	2,307,734		10,006		12,091			—		—			2,329,831
At or for the Three Months Ended September 30, 2017
Interest income	$	249,923	$	—	$	20		$	9,981	$	3,590		$	263,514
Interest expense	29,463		—		—			938		7,882			38,283
Net interest income	220,460		—		20			9,043		(4,292		)	225,231
Provision for credit losses	14,847		—		—			1,921		—			16,768
Non-interest income	52,020		10,006		4,209			741		(825		)	66,151
Non-interest expense (1)	142,015		7,451		3,907			5,261		304			158,938
Amortization of intangibles	4,689		64		52			—		—			4,805
Income tax expense (benefit)	33,238		904		105			1,038		(2,107		)	33,178
Net income (loss)	77,691		1,587		165			1,564		(3,314		)	77,693
Total assets	30,889,485		23,573		21,242			185,209		3,786			31,123,295
Total intangibles	2,327,495		10,224		12,179			1,809		—			2,351,707

(1) Excludes amortization of intangibles, which is presented separately.

(in thousands)	Community Banking		Wealth Management		Insurance		Consumer Finance		Parent and Other			Consolidated
At or for the Nine Months Ended September 30, 2018
Interest income	$	839,833	$	6	$	23	$	24,893	$	104		$	864,859
Interest expense	150,814		—		—		2,429		11,369			164,612
Net interest income	689,019		6		23		22,464		(11,265		)	700,247
Provision for credit losses	39,381		—		—		5,697		946			46,024
Non-interest income	160,157		33,370		12,264		1,750		(315		)	207,226
Non-interest expense (1)	457,189		25,272		11,968		14,348		4,214			512,991
Amortization of intangibles	11,499		182		153		—		—			11,834
Income tax expense (benefit)	65,199		1,769		55		1,152		(4,282		)	63,893
Net income (loss)	275,908		6,153		111		3,017		(12,458		)	272,731
Total assets	32,526,809		26,381		19,323		—		45,082			32,617,595
Total intangibles	2,307,734		10,006		12,091		—		—			2,329,831
At or for the Nine Months Ended September 30, 2017
Interest income	$	677,221	$	—	$	59	$	29,997	$	1,964		$	709,241
Interest expense	76,742		—		—		2,748		13,353			92,843
Net interest income	600,479		—		59		27,249		(11,389		)	616,398
Provision for credit losses	38,649		—		—		5,725		—			44,374
Non-interest income	145,768		29,376		12,030		2,221		(2,050		)	187,345
Non-interest expense (1)	451,740		22,978		10,678		15,780		1,120			502,296
Amortization of intangibles	12,365		190		161		—		—			12,716
Income tax expense (benefit)	69,749		2,266		462		3,178		(6,376		)	69,279
Net income (loss)	173,744		3,942		788		4,787		(8,183		)	175,078
Total assets	30,889,485		23,573		21,242		185,209		3,786			31,123,295
Total intangibles	2,327,495		10,224		12,179		1,809		—			2,351,707

(1) Excludes amortization of intangibles, which is presented separately.

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FAIR VALUE MEASUREMENTS (Tables)

9 Months Ended

Sep. 30, 2018

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:

TABLE 18.1

(in thousands)	Level 1		Level 2		Level 3		Total
September 30, 2018
Assets Measured at Fair Value
Debt securities available for sale
U.S. government agencies	$	—	$	163,000	$	—	$	163,000
U.S. government-sponsored entities	—		356,267		—		356,267
Residential mortgage-backed securities:
Agency mortgage-backed securities	—		1,483,820		—		1,483,820
Agency collateralized mortgage obligations	—		1,046,481		—		1,046,481
Non-agency collateralized mortgage obligations	—		—		—		—
Commercial mortgage-backed securities	—		226,775		—		226,775
States of the U.S. and political subdivisions	—		20,681		—		20,681
Other debt securities	—		1,870		—		1,870
Total debt securities available for sale	—		3,298,894		—		3,298,894
Loans held for sale	—		24,943		—		24,943
Marketable equity securities
Fixed income mutual fund	—		—		—		—
Financial services industry	—		188		—		188
Total marketable equity securities	—		188		—		188
Derivative financial instruments
Trading	—		17,590		—		17,590
Not for trading	—		385		772		1,157
Total derivative financial instruments	—		17,975		772		18,747
Total assets measured at fair value on a recurring basis	$	—	$	3,342,000	$	772	$	3,342,772
Liabilities Measured at Fair Value
Derivative financial instruments
Trading	$	—	$	70,176	$	—	$	70,176
Not for trading	—		4,844		21		4,865
Total derivative financial instruments	—		75,020		21		75,041
Total liabilities measured at fair value on a recurring basis	$	—	$	75,020	$	21	$	75,041

(in thousands)	Level 1		Level 2		Level 3		Total
December 31, 2017
Assets Measured at Fair Value
Debt securities available for sale
U.S. government-sponsored entities	$	—	$	343,942	$	—	$	343,942
Residential mortgage-backed securities:
Agency mortgage-backed securities	—		1,598,874		—		1,598,874
Agency collateralized mortgage obligations	—		794,957		—		794,957
Non-agency collateralized mortgage obligations	—		1		—		1
States of the U.S. and political subdivisions	—		21,093		—		21,093
Other debt securities	—		4,670		—		4,670
Total debt securities available for sale	—		2,763,537		—		2,763,537
Equity securities available for sale
Fixed income mutual fund	161		—		—		161
Financial services industry	—		864		—		864
Total equity securities available for sale	161		864		—		1,025
Total securities available for sale	161		2,764,401		—		2,764,562
Loans held for sale	—		56,458		—		56,458
Derivative financial instruments
Trading	—		28,453		—		28,453
Not for trading	—		500		1,594		2,094
Total derivative financial instruments	—		28,953		1,594		30,547
Total assets measured at fair value on a recurring basis	$	161	$	2,849,812	$	1,594	$	2,851,567
Liabilities Measured at Fair Value
Derivative financial instruments
Trading	$	—	$	26,953	$	—	$	26,953
Not for trading	—		2,239		5		2,244
Total derivative financial instruments	—		29,192		5		29,197
Total liabilities measured at fair value on a recurring basis	$	—	$	29,192	$	5	$	29,197

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 we have utilized Level 3 inputs to determine fair value:

TABLE 18.2

(in thousands)	Other Debt Securities			Equity Securities			Residential Non-Agency Collateralized Mortgage Obligations			Interest Rate Lock Commitments			Total
Nine Months Ended September 30, 2018
Balance at beginning of period	$	—		$	—		$	—		$	1,594		$	1,594
Purchases, issuances, sales and settlements:
Purchases	—			—			—			3,814			3,814
Settlements	—			—			—			(4,636		)	(4,636		)
Balance at end of period	$	—		$	—		$	—		$	772		$	772
Year Ended December 31, 2017
Balance at beginning of period	$	—		$	492		$	894		$	—		$	1,386
Total gains (losses) – realized/unrealized:
Included in earnings	—			—			4			—			4
Included in other comprehensive income	—			86			(6		)	—			80
Accretion included in earnings	(1		)	—			1			—			—
Purchases, issuances, sales and settlements:
Purchases	12,048			—			—			1,594			13,642
Sales/redemptions	(12,047		)	—			(874		)	—			(12,921		)
Settlements	—			—			(19		)	(4,569		)	(4,588		)
Transfers from Level 3	—			(578		)	—			—			(578		)
Transfers into Level 3	—			—			—			4,569			4,569
Balance at end of period	$	—		$	—		$	—		$	1,594		$	1,594

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:

TABLE 18.3

(in thousands)	Level 1		Level 2		Level 3		Total
September 30, 2018
Impaired loans	$	—	$	1,440	$	4,858	$	6,298
Other real estate owned	—		—		5,570		5,570
Other assets - SBA servicing asset	—		—		4,305		4,305
December 31, 2017
Impaired loans	$	—	$	2,813	$	1,297	$	4,110
Other real estate owned	—		10,513		10,823		21,336
Loans held for sale - SBA	—		—		36,432		36,432
Other assets - SBA servicing asset	—		—		5,058		5,058

Fair Values of Financial Instruments

The fair values of our financial instruments are as follows:

TABLE 18.4

					Fair Value Measurements
(in thousands)	Carrying Amount		Fair  Value		Level 1		Level 2		Level 3
September 30, 2018
Financial Assets
Cash and cash equivalents	$	437,853	$	437,853	$	437,853	$	—	$	—
Debt securities available for sale	3,298,894		3,298,894		—		3,298,894		—
Debt securities held to maturity	3,206,345		3,032,947		—		3,032,947		—
Net loans and leases, including loans held for sale	21,703,605		21,270,133		—		24,943		21,245,190
Loan servicing rights	39,664		46,021		—		—		46,021
Marketable equity securities	188		188		—		188		—
Derivative assets	18,747		18,747		—		17,975		772
Accrued interest receivable	102,513		102,513		102,513		—		—
Financial Liabilities
Deposits	23,499,986		23,437,161		18,052,235		5,384,926		—
Short-term borrowings	3,679,380		3,679,933		3,679,933		—		—
Long-term borrowings	627,049		618,778		—		—		618,778
Derivative liabilities	75,041		75,041		—		75,020		21
Accrued interest payable	19,159		19,159		19,159		—		—
December 31, 2017
Financial Assets
Cash and cash equivalents	$	479,443	$	479,443	$	479,443	$	—	$	—
Securities available for sale	2,764,562		2,764,562		161		2,764,401		—
Debt securities held to maturity	3,242,268		3,218,379		—		3,218,379		—
Net loans and leases, including loans held for sale	20,916,277		20,661,196		—		56,458		20,604,738
Loan servicing rights	34,111		37,758		—		—		37,758
Derivative assets	30,547		30,547		—		28,953		1,594
Accrued interest receivable	94,254		94,254		94,254		—		—
Financial Liabilities
Deposits	22,399,725		22,359,182		17,779,246		4,579,936		—
Short-term borrowings	3,678,337		3,678,723		3,678,723		—		—
Long-term borrowings	668,173		675,489		—		—		675,489
Derivative liabilities	29,197		29,197		—		29,192		5
Accrued interest payable	12,480		12,480		12,480		—		—

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NATURE OF OPERATIONS (Detail)	9 Months Ended
	Sep. 30, 2018 Office State
Segment Reporting Information [Line Items]
Number of states, Company operating financial services | State	6
Number of banking offices | Office	397
Minimum [Member]
Segment Reporting Information [Line Items]
Years of service (over)	150 years

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Detail) - USD ($) $ in Millions	Sep. 30, 2018	Dec. 31, 2017
Accounting Policies [Abstract]
Net investment in LIHTCs	$ 35.7	$ 20.9
Qualified affordable housing project investments, commitment	$ 46.6	$ 67.2

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NEW ACCOUNTING STANDARDS (Details) $ in Millions	Mar. 31, 2018 USD ($)
Accounting Standards Update 2016-01 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect of new accounting principle in period of adoption	$ 1.1

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MERGERS AND ACQUISITIONS - Additional Information (Detail) - Yadkin Financial Corporation (YDKN) [Member] $ / shares in Units, $ in Billions	Mar. 11, 2017 USD ($) $ / shares shares
Business Acquisition [Line Items]
Assets acquired as a result of merger	$ 6.8
Loans acquired as a result of merger	5.1
Deposits acquired as a result of merger	5.2
Value of acquisition	$ 1.8
Closing price of common stock (in dollars per share) | $ / shares	$ 15.97
Number of shares (in shares) | shares	111,619,622
Common shares to be acquired (shares) | shares	51,677,565
Ratio of shares entitled to receive as per merger agreement	2.16
Warrant Expires in 2019 [Member]
Business Acquisition [Line Items]
Warrant issued (in shares) | shares	207,320
Warrant issued, exercise price (in dollars per share) | $ / shares	$ 9.63

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SECURITIES - Amortized Cost and Fair Value of Securities Available for Sale (Detail) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Debt Securities
Amortized Cost	$ 3,402,446
Gross Unrealized Gains	392
Gross Unrealized Losses	(103,944)
Fair Value	3,298,894
Equity Securities
Amortized Cost		$ 2,802,621
Gross Unrealized Gains		1,721
Gross Unrealized Losses		(39,780)
Securities available for sale	3,298,894	2,764,562
US Government Agencies [Member]
Debt Securities
Amortized Cost	163,752
Gross Unrealized Gains	36
Gross Unrealized Losses	(788)
Fair Value	163,000
U.S. Government-Sponsored Entities [Member]
Debt Securities
Amortized Cost	362,967	347,767
Gross Unrealized Gains	0	52
Gross Unrealized Losses	(6,700)	(3,877)
Fair Value	356,267	343,942
Agency Mortgage-Backed Securities [Member]
Debt Securities
Amortized Cost	1,540,049	1,615,168
Gross Unrealized Gains	356	1,225
Gross Unrealized Losses	(56,585)	(17,519)
Fair Value	1,483,820	1,598,874
Agency Collateralized Mortgage Obligations [Member]
Debt Securities
Amortized Cost	1,083,989	813,034
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(37,508)	(18,077)
Fair Value	1,046,481	794,957
Non-Agency Collateralized Mortgage Obligations [Member]
Debt Securities
Amortized Cost		1
Gross Unrealized Gains		0
Gross Unrealized Losses		0
Fair Value		1
Commercial Mortgage-Backed Securities [Member]
Debt Securities
Amortized Cost	228,957
Gross Unrealized Gains	0
Gross Unrealized Losses	(2,182)
Fair Value	226,775
States of the U.S. and Political Subdivisions [Member]
Debt Securities
Amortized Cost	20,782	21,151
Gross Unrealized Gains	0	6
Gross Unrealized Losses	(101)	(64)
Fair Value	20,681	21,093
Other Debt Securities [Member]
Debt Securities
Amortized Cost	1,950	4,913
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(80)	(243)
Fair Value	$ 1,870	4,670
Debt Securities [Member]
Debt Securities
Amortized Cost		2,802,034
Gross Unrealized Gains		1,283
Gross Unrealized Losses		(39,780)
Fair Value		2,763,537
Equity Securities [Member]
Equity Securities
Amortized Cost		587
Gross Unrealized Gains		438
Gross Unrealized Losses		0
Fair Value		$ 1,025

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SECURITIES - Amortized Cost and Fair Value of Securities Held to Maturity (Detail) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Investment Securities Held To Maturity [Line Items]
Amortized Cost	$ 3,206,345	$ 3,242,268
Gross Unrealized Gains	598	17,357
Gross Unrealized Losses	(173,996)	(41,246)
Fair Value	3,032,947	3,218,379
U.S. Treasury [Member]
Investment Securities Held To Maturity [Line Items]
Amortized Cost	500	500
Gross Unrealized Gains	95	134
Gross Unrealized Losses	0	0
Fair Value	595	634
US Government Agencies [Member]
Investment Securities Held To Maturity [Line Items]
Amortized Cost	1,987
Gross Unrealized Gains	58
Gross Unrealized Losses	0
Fair Value	2,045
U.S. Government-Sponsored Entities [Member]
Investment Securities Held To Maturity [Line Items]
Amortized Cost	230,011	247,310
Gross Unrealized Gains	0	93
Gross Unrealized Losses	(6,170)	(4,388)
Fair Value	223,841	243,015
Agency Mortgage-Backed Securities [Member]
Investment Securities Held To Maturity [Line Items]
Amortized Cost	1,078,270	1,219,802
Gross Unrealized Gains	225	3,475
Gross Unrealized Losses	(40,969)	(9,058)
Fair Value	1,037,526	1,214,219
Agency Collateralized Mortgage Obligations [Member]
Investment Securities Held To Maturity [Line Items]
Amortized Cost	797,940	777,146
Gross Unrealized Gains	219	32
Gross Unrealized Losses	(37,797)	(20,095)
Fair Value	760,362	757,083
Commercial Mortgage-Backed Securities [Member]
Investment Securities Held To Maturity [Line Items]
Amortized Cost	76,818	80,786
Gross Unrealized Gains	1	414
Gross Unrealized Losses	(1,864)	(575)
Fair Value	74,955	80,625
States of the U.S. and Political Subdivisions [Member]
Investment Securities Held To Maturity [Line Items]
Amortized Cost	1,020,819	916,724
Gross Unrealized Gains	0	13,209
Gross Unrealized Losses	(87,196)	(7,130)
Fair Value	$ 933,623	$ 922,803

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SECURITIES - Gross Gains and Gross Losses Realized on Sales of Securities (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Investments, Debt and Equity Securities [Abstract]
Gross gains	$ 0	$ 2,834	$ 31	$ 6,845
Gross losses	0	(57)	0	(950)
Net gains	$ 0	$ 2,777	$ 31	$ 5,895

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SECURITIES - Amortized Cost and Fair Value of Securities, by Contractual Maturities (Detail) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Schedule Of Securities [Line Items]
Available for sale, due in one year or less, amortized cost	$ 121,270
Available for sale, due from one to five years, amortized cost	258,824
Available for sale, due from five to ten years, amortized cost	57,811
Available for sale, due after ten years, amortized cost	111,546
Available for sale, with contractual maturities, amortized cost	549,451
Total securities available for sale, amortized cost	3,402,446
Available for sale, due in one year or less, fair value	120,729
Available for sale, due from one to five years, fair value	252,577
Available for sale, due from five to ten years, fair value	57,603
Available for sale, due after ten years, fair value	110,909
Available for sale, with contractual maturities, fair value	541,818
Total securities available for sale, fair value	3,298,894
Held to maturity, due in one year or less, amortized cost	40,450
Held to maturity, due from one to five years, amortized cost	202,164
Held to maturity, due from five to ten years, amortized cost	109,606
Held to maturity, due after ten years, amortized cost	901,097
Securities held to maturity, with contractual maturities, amortized cost	1,253,317
Held to maturity, with contractual maturities, amortized cost	3,206,345	$ 3,242,268
Held to maturity, due in one year or less, fair value	40,308
Held to maturity, due from one to five years, fair value	195,882
Held to maturity, due from five to ten years, fair value	105,281
Held to maturity, due after ten years, fair value	818,633
Securities held to maturity, with contractual maturities, fair value	1,160,104
Held to maturity, with contractual maturities, fair value	3,032,947	3,218,379
Agency Mortgage-Backed Securities [Member]
Schedule Of Securities [Line Items]
Total securities available for sale, amortized cost	1,540,049	1,615,168
Total securities available for sale, fair value	1,483,820	1,598,874
Held to maturity, with contractual maturities, amortized cost	1,078,270	1,219,802
Held to maturity, with contractual maturities, fair value	1,037,526	1,214,219
Agency Collateralized Mortgage Obligations [Member]
Schedule Of Securities [Line Items]
Total securities available for sale, amortized cost	1,083,989	813,034
Total securities available for sale, fair value	1,046,481	794,957
Held to maturity, with contractual maturities, amortized cost	797,940	777,146
Held to maturity, with contractual maturities, fair value	760,362	757,083
Commercial Mortgage-Backed Securities [Member]
Schedule Of Securities [Line Items]
Total securities available for sale, amortized cost	228,957
Total securities available for sale, fair value	226,775
Held to maturity, with contractual maturities, amortized cost	76,818	80,786
Held to maturity, with contractual maturities, fair value	$ 74,955	$ 80,625

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SECURITIES - Schedule of Securities Pledged as Collateral (Detail) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Investments, Debt and Equity Securities [Abstract]
Securities pledged (carrying value), to secure public deposits, trust deposits and for other purposes as required by law	$ 3,912,575	$ 3,491,634
Securities pledged (carrying value), as collateral for short-term borrowings	$ 282,682	$ 263,756
Securities pledged as a percent of total securities	64.50%	62.50%

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SECURITIES - Fair Values and Unrealized Losses of Impaired Securities, by Length of Impairment (Detail) $ in Thousands	Sep. 30, 2018 USD ($) Security	Dec. 31, 2017 USD ($) Security
Schedule Of Securities [Line Items]
Number of available for sale securities, Less than 1 year | Security	94	71
Number of available for sale securities, Greater than 1 year | Security	101	75
Number of available for sale securities | Security	195	146
Securities available for sale, less than 12 months, fair value	$ 1,747,675	$ 1,503,806
Securities available for sale, less than 12 months, unrealized losses	(36,132)	(14,372)
Securities available for sale, 12 months or more, fair value	1,479,649	1,016,111
Securities available for sale, 12 months or more, unrealized losses	(67,812)	(25,408)
Securities available for sale, fair value, total	3,227,324	2,519,917
Securities available for sale, unrealized losses, total	$ (103,944)	$ (39,780)
Number of held to maturity securities | Security	492	168
Securities held to maturity, less than 12 months, fair value	$ 1,819,260	$ 1,061,703
Securities held to maturity, less than 12 months, unrealized losses	(92,598)	(7,851)
Securities held to maturity, greater than 12 months, fair value	1,161,737	984,076
Securities held to maturity, greater than 12 months, unrealized losses	(81,398)	(33,395)
Securities held to maturity, fair value, total	2,980,997	2,045,779
Securities held to maturity, unrealized losses, total	$ (173,996)	$ (41,246)
US Government Agencies [Member]
Schedule Of Securities [Line Items]
Number of available for sale securities, Less than 1 year | Security	18
Number of available for sale securities, Greater than 1 year | Security	0
Number of available for sale securities | Security	18
Securities available for sale, less than 12 months, fair value	$ 137,530
Securities available for sale, less than 12 months, unrealized losses	(788)
Securities available for sale, 12 months or more, fair value	0
Securities available for sale, 12 months or more, unrealized losses	0
Securities available for sale, fair value, total	137,530
Securities available for sale, unrealized losses, total	$ (788)
U.S. Government-Sponsored Entities [Member]
Schedule Of Securities [Line Items]
Number of available for sale securities, Less than 1 year | Security	6	7
Number of available for sale securities, Greater than 1 year | Security	11	10
Number of available for sale securities | Security	17	17
Securities available for sale, less than 12 months, fair value	$ 136,678	$ 106,809
Securities available for sale, less than 12 months, unrealized losses	(1,292)	(363)
Securities available for sale, 12 months or more, fair value	219,589	201,485
Securities available for sale, 12 months or more, unrealized losses	(5,408)	(3,514)
Securities available for sale, fair value, total	356,267	308,294
Securities available for sale, unrealized losses, total	$ (6,700)	$ (3,877)
Number of held to maturity securities | Security	13	14
Securities held to maturity, less than 12 months, fair value	$ 39,696	$ 54,790
Securities held to maturity, less than 12 months, unrealized losses	(315)	(239)
Securities held to maturity, greater than 12 months, fair value	184,145	185,851
Securities held to maturity, greater than 12 months, unrealized losses	(5,855)	(4,149)
Securities held to maturity, fair value, total	223,841	240,641
Securities held to maturity, unrealized losses, total	$ (6,170)	$ (4,388)
Agency Mortgage-Backed Securities [Member]
Schedule Of Securities [Line Items]
Number of available for sale securities, Less than 1 year | Security	40	43
Number of available for sale securities, Greater than 1 year | Security	48	28
Number of available for sale securities | Security	88	71
Securities available for sale, less than 12 months, fair value	$ 666,851	$ 976,738
Securities available for sale, less than 12 months, unrealized losses	(20,289)	(7,723)
Securities available for sale, 12 months or more, fair value	807,826	473,625
Securities available for sale, 12 months or more, unrealized losses	(36,296)	(9,796)
Securities available for sale, fair value, total	1,474,677	1,450,363
Securities available for sale, unrealized losses, total	$ (56,585)	$ (17,519)
Number of held to maturity securities | Security	95	47
Securities held to maturity, less than 12 months, fair value	$ 609,169	$ 648,485
Securities held to maturity, less than 12 months, unrealized losses	(20,754)	(4,855)
Securities held to maturity, greater than 12 months, fair value	417,024	183,989
Securities held to maturity, greater than 12 months, unrealized losses	(20,215)	(4,203)
Securities held to maturity, fair value, total	1,026,193	832,474
Securities held to maturity, unrealized losses, total	$ (40,969)	$ (9,058)
Agency Collateralized Mortgage Obligations [Member]
Schedule Of Securities [Line Items]
Number of available for sale securities, Less than 1 year | Security	17	14
Number of available for sale securities, Greater than 1 year | Security	39	33
Number of available for sale securities | Security	56	47
Securities available for sale, less than 12 months, fair value	$ 568,169	$ 409,005
Securities available for sale, less than 12 months, unrealized losses	(11,501)	(6,231)
Securities available for sale, 12 months or more, fair value	448,336	335,452
Securities available for sale, 12 months or more, unrealized losses	(26,007)	(11,846)
Securities available for sale, fair value, total	1,016,505	744,457
Securities available for sale, unrealized losses, total	$ (37,508)	$ (18,077)
Number of held to maturity securities | Security	53	49
Securities held to maturity, less than 12 months, fair value	$ 307,031	$ 275,290
Securities held to maturity, less than 12 months, unrealized losses	(9,673)	(1,701)
Securities held to maturity, greater than 12 months, fair value	416,467	473,257
Securities held to maturity, greater than 12 months, unrealized losses	(28,124)	(18,394)
Securities held to maturity, fair value, total	723,498	748,547
Securities held to maturity, unrealized losses, total	$ (37,797)	$ (20,095)
Commercial Mortgage-Backed Securities [Member]
Schedule Of Securities [Line Items]
Number of available for sale securities, Less than 1 year | Security	6
Number of available for sale securities, Greater than 1 year | Security	0
Number of available for sale securities | Security	6
Securities available for sale, less than 12 months, fair value	$ 226,775
Securities available for sale, less than 12 months, unrealized losses	(2,182)
Securities available for sale, 12 months or more, fair value	0
Securities available for sale, 12 months or more, unrealized losses	0
Securities available for sale, fair value, total	226,775
Securities available for sale, unrealized losses, total	$ (2,182)
Number of held to maturity securities | Security	11	5
Securities held to maturity, less than 12 months, fair value	$ 52,471	$ 26,399
Securities held to maturity, less than 12 months, unrealized losses	(1,184)	(123)
Securities held to maturity, greater than 12 months, fair value	21,371	19,443
Securities held to maturity, greater than 12 months, unrealized losses	(680)	(452)
Securities held to maturity, fair value, total	73,842	45,842
Securities held to maturity, unrealized losses, total	$ (1,864)	$ (575)
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	7	7
Number of available for sale securities, Greater than 1 year | Security	2	1
Number of available for sale securities | Security	9	8
Securities available for sale, less than 12 months, fair value	$ 11,672	$ 11,254
Securities available for sale, less than 12 months, unrealized losses	(80)	(55)
Securities available for sale, 12 months or more, fair value	2,028	879
Securities available for sale, 12 months or more, unrealized losses	(21)	(9)
Securities available for sale, fair value, total	13,700	12,133
Securities available for sale, unrealized losses, total	$ (101)	$ (64)
Number of held to maturity securities | Security	320	53
Securities held to maturity, less than 12 months, fair value	$ 810,893	$ 56,739
Securities held to maturity, less than 12 months, unrealized losses	(60,672)	(933)
Securities held to maturity, greater than 12 months, fair value	122,730	121,536
Securities held to maturity, greater than 12 months, unrealized losses	(26,524)	(6,197)
Securities held to maturity, fair value, total	933,623	178,275
Securities held to maturity, unrealized losses, total	$ (87,196)	$ (7,130)
Other Debt Securities [Member]
Schedule Of Securities [Line Items]
Number of available for sale securities, Less than 1 year | Security	0	0
Number of available for sale securities, Greater than 1 year | Security	1	3
Number of available for sale securities | Security	1	3
Securities available for sale, less than 12 months, fair value	$ 0	$ 0
Securities available for sale, less than 12 months, unrealized losses	0	0
Securities available for sale, 12 months or more, fair value	1,870	4,670
Securities available for sale, 12 months or more, unrealized losses	(80)	(243)
Securities available for sale, fair value, total	1,870	4,670
Securities available for sale, unrealized losses, total	$ (80)	$ (243)
Less Than Twelve Months [Member]
Schedule Of Securities [Line Items]
Number of held to maturity securities | Security	369	73
Less Than Twelve Months [Member] | U.S. Government-Sponsored Entities [Member]
Schedule Of Securities [Line Items]
Number of held to maturity securities | Security	3	4
Less Than Twelve Months [Member] | Agency Mortgage-Backed Securities [Member]
Schedule Of Securities [Line Items]
Number of held to maturity securities | Security	66	36
Less Than Twelve Months [Member] | Agency Collateralized Mortgage Obligations [Member]
Schedule Of Securities [Line Items]
Number of held to maturity securities | Security	15	14
Less Than Twelve Months [Member] | Commercial Mortgage-Backed Securities [Member]
Schedule Of Securities [Line Items]
Number of held to maturity securities | Security	7	3
Less Than Twelve Months [Member] | States of the U.S. and Political Subdivisions [Member]
Schedule Of Securities [Line Items]
Number of held to maturity securities | Security	278	16
Greater Than Twelve Months [Member]
Schedule Of Securities [Line Items]
Number of held to maturity securities | Security	123	95
Greater Than Twelve Months [Member] | U.S. Government-Sponsored Entities [Member]
Schedule Of Securities [Line Items]
Number of held to maturity securities | Security	10	10
Greater Than Twelve Months [Member] | Agency Mortgage-Backed Securities [Member]
Schedule Of Securities [Line Items]
Number of held to maturity securities | Security	29	11
Greater Than Twelve Months [Member] | Agency Collateralized Mortgage Obligations [Member]
Schedule Of Securities [Line Items]
Number of held to maturity securities | Security	38	35
Greater Than Twelve Months [Member] | Commercial Mortgage-Backed Securities [Member]
Schedule Of Securities [Line Items]
Number of held to maturity securities | Security	4	2
Greater Than Twelve Months [Member] | States of the U.S. and Political Subdivisions [Member]
Schedule Of Securities [Line Items]
Number of held to maturity securities | Security	42	37

XML

SECURITIES - Additional Information (Detail) $ in Thousands	9 Months Ended
	Sep. 30, 2018 USD ($) general_obligation_bonds	Sep. 30, 2017 USD ($)
Schedule Of Securities [Line Items]
Other than temporary impairment losses, investments, available-for-sale securities	$ 0	$ 0
Municipal bond portfolio, value	$ 1,000,000
Number of general obligation bond | general_obligation_bonds	1
Percentage of formal credit enhancement insurance of municipalities	64.00%
Municipal Bonds [Member] | Weighted Average [Member]
Schedule Of Securities [Line Items]
Average holding size of securities in bond portfolio	$ 3,100
Municipal Bonds [Member] | Credit Concentration Risk [Member] | General Obligation Bonds [Member] | A Rating [Member] | Minimum [Member]
Schedule Of Securities [Line Items]
Percentage of portfolio	100.00%
Municipal Bonds [Member] | Credit Concentration Risk [Member] | General Obligation Bonds [Member] | A Rating or Better [Member]
Schedule Of Securities [Line Items]
Percentage of portfolio	99.00%
Municipal Bonds [Member] | Geographic Concentration Risk [Member] | Pennsylvania, Ohio and Maryland [Member]
Schedule Of Securities [Line Items]
Percentage of portfolio	65.00%

XML

LOANS AND LEASES - Net of Unearned Income (Detail) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	$ 21,839,403	$ 20,998,766
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	8,845,740	8,741,864
Commercial and Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	4,363,457	4,170,667
Commercial Leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	346,579	266,720
Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	34,732	17,063
Total Commercial Loans and Leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	13,590,508	13,196,314
Direct Installment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	1,778,123	1,905,535
Residential Mortgages [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	2,984,662	2,702,691
Indirect Installment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	1,880,649	1,448,433
Consumer Lines of Credit [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	1,605,461	1,745,793
Consumer Loan [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	8,248,895	7,802,452
Originated Loans and Leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	17,377,969	15,345,490
Originated Loans and Leases [Member] | Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	5,978,629	5,174,783
Originated Loans and Leases [Member] | Commercial and Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	3,892,822	3,495,247
Originated Loans and Leases [Member] | Commercial Leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	346,579	266,720
Originated Loans and Leases [Member] | Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	34,732	17,063
Originated Loans and Leases [Member] | Total Commercial Loans and Leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	10,252,762	8,953,813
Originated Loans and Leases [Member] | Direct Installment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	1,670,964	1,755,713
Originated Loans and Leases [Member] | Residential Mortgages [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	2,457,380	2,036,226
Originated Loans and Leases [Member] | Indirect Installment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	1,880,487	1,448,268
Originated Loans and Leases [Member] | Consumer Lines of Credit [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	1,116,376	1,151,470
Originated Loans and Leases [Member] | Consumer Loan [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	7,125,207	6,391,677
Acquired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	4,461,434	5,653,276
Acquired Loans [Member] | Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	2,867,111	3,567,081
Acquired Loans [Member] | Commercial and Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	470,635	675,420
Acquired Loans [Member] | Commercial Leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	0	0
Acquired Loans [Member] | Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	0	0
Acquired Loans [Member] | Total Commercial Loans and Leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	3,337,746	4,242,501
Acquired Loans [Member] | Direct Installment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	107,159	149,822
Acquired Loans [Member] | Residential Mortgages [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	527,282	666,465
Acquired Loans [Member] | Indirect Installment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	162	165
Acquired Loans [Member] | Consumer Lines of Credit [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	489,085	594,323
Acquired Loans [Member] | Consumer Loan [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, net of unearned income	$ 1,123,688	$ 1,410,775

XML

LOANS AND LEASES - Commercial Real Estate Loans (Detail) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2018	Dec. 31, 2017
Loans and Leases Receivable Disclosure [Line Items]
Commercial construction, acquisition and development loans	$ 1,146,612	$ 1,170,175
Credit Concentration Risk [Member] | Commercial Construction Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Percent of total loans and leases	5.30%	5.60%
Loan Portfolio Diversification Risk [Member] | Commercial Real Estate Loans [Member] | Owner-Occupied [Member]
Loans and Leases Receivable Disclosure [Line Items]
Percent of total loans and leases	34.70%	35.30%
Loan Portfolio Diversification Risk [Member] | Commercial Real Estate Loans [Member] | Non-Owner-Occupied [Member]
Loans and Leases Receivable Disclosure [Line Items]
Percent of total loans and leases	65.30%	64.70%

XML

LOANS AND LEASES - Outstanding Principal Balance and Carrying Amount of Acquired Loans (Detail) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying amount	$ 21,839,403	$ 20,998,766
Accounted for under ASC 310-30 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Outstanding balance	4,110,019	5,176,015
Carrying amount	3,830,823	4,834,256
Accounted for under ASC 310-20 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Outstanding balance	644,077	835,130
Carrying amount	626,041	812,322
Acquired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Outstanding balance	4,754,096	6,011,145
Carrying amount	$ 4,456,864	$ 5,646,578

XML

LOANS AND LEASES - Additional Information (Detail) - USD ($)	3 Months Ended	9 Months Ended		12 Months Ended
	Jun. 30, 2018	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017	Jul. 01, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying amount		$ 21,839,403,000		$ 20,998,766,000
Reclassification from non-accretable difference		$ 184,545,000	$ 163,714,000
Sustained period of delinquency for impairment evaluation		90 years
Valuation for impairment of loans with pooled reserves		$ 1,000,000			$ 1,000,000
Minimum amount to allocate specific valuation allowance					$ 1,000,000
Interest income on impaired loans		4,300,000	$ 3,300,000
Restructured loans returned to performing status		3,000,000
Minimum reserves for commercial loan		1,000,000
Pooled reserves for all other classes of loans		$ 4,000,000		4,000,000
Maximum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due period for loan to be in default		12 months
Minimum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due period for loan to be in default		90 days
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]
Proceeds from sale acquired real estate loans	$ 56,500,000
Threshold period past due for default non-accrual status of trade accounts receivable		180 days
Carrying value of OREO through foreclosure		$ 5,400,000		3,600,000
Mortgage loans on real estate, foreclosure		9,000,000		15,200,000
Purchased Credit-Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying amount		$ 1,700,000		$ 1,900,000
Purchased Credit-Impaired Loans [Member] | Credit Concentration Risk [Member] | Acquired Loans Receivable [Member] | Maximum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of portfolio				0.03%
Purchased Credit-Impaired Loans [Member] | Credit Concentration Risk [Member] | Acquired Loans Receivable [Member] | Minimum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of portfolio		0.04%

XML

LOANS AND LEASES - Change in Accretable Yield of Acquired Loans (Detail) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Balance at beginning of period	$ 708,481	$ 467,070
Acquisitions	0	444,715
Reduction due to unexpected early payoffs	(117,469)	(90,097)
Reclass from non-accretable difference	184,545	163,714
Disposals/transfers	(444)	(341)
Other	(412)	1,129
Accretion	(169,605)	(164,219)
Balance at end of period	$ 605,096	$ 821,971

XML

LOANS AND LEASES - Non-Performing Assets (Detail) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled debt restructurings	$ 48,064	$ 53,991
Non-Performing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans	79,899	74,635
Troubled debt restructurings	22,322	23,481
Total non-performing loans	102,221	98,116
Other real estate owned	35,685	40,606
Total non-performing assets	$ 137,906	$ 138,722
Non-performing loans / total loans and leases	0.47%	0.47%
Non-performing loans OREO / total loans and leases OREO	0.63%	0.66%
Non-performing assets / total assets	0.42%	0.44%

XML

LOANS AND LEASES - Age Analysis of Past Due Loans (Detail) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2018	Sep. 30, 2018	Dec. 31, 2017
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans		$ 21,839,403	$ 20,998,766
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans		8,845,740	8,741,864
Commercial and Industrial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans		4,363,457	4,170,667
Commercial Leases [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans		346,579	266,720
Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans		34,732	17,063
Total Commercial Loans and Leases [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans		13,590,508	13,196,314
Direct Installment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans		1,778,123	1,905,535
Residential Mortgages [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans		2,984,662	2,702,691
Indirect Installment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans		1,880,649	1,448,433
Consumer Lines of Credit [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans		1,605,461	1,745,793
Consumer Loan [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans		8,248,895	7,802,452
Originated Loans and Leases [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		137,728	134,911
Non- Accrual		71,936	63,644
Current		17,240,241	15,210,579
Total Loans		17,377,969	15,345,490
Loans sold	$ 14,700
Originated Loans and Leases [Member] | 30-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		61,820	62,146
Originated Loans and Leases [Member] | Equal to Greater than 90 Days Past Due and Still Accruing [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		3,972	9,121
Originated Loans and Leases [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		31,223	33,047
Non- Accrual		18,243	24,773
Current		5,947,406	5,141,736
Total Loans		5,978,629	5,174,783
Originated Loans and Leases [Member] | Commercial Real Estate [Member] | 30-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		12,978	8,273
Originated Loans and Leases [Member] | Commercial Real Estate [Member] | Equal to Greater than 90 Days Past Due and Still Accruing [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		2	1
Originated Loans and Leases [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		34,395	26,028
Non- Accrual		27,323	17,077
Current		3,858,427	3,469,219
Total Loans		3,892,822	3,495,247
Originated Loans and Leases [Member] | Commercial and Industrial [Member] | 30-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		7,069	8,948
Originated Loans and Leases [Member] | Commercial and Industrial [Member] | Equal to Greater than 90 Days Past Due and Still Accruing [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		3	3
Originated Loans and Leases [Member] | Commercial Leases [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		6,238	2,997
Non- Accrual		5,526	1,574
Current		340,341	263,723
Total Loans		346,579	266,720
Originated Loans and Leases [Member] | Commercial Leases [Member] | 30-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		712	1,382
Originated Loans and Leases [Member] | Commercial Leases [Member] | Equal to Greater than 90 Days Past Due and Still Accruing [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		0	41
Originated Loans and Leases [Member] | Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		1,221	1,236
Non- Accrual		1,000	1,000
Current		33,511	15,827
Total Loans		34,732	17,063
Originated Loans and Leases [Member] | Other [Member] | 30-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		80	83
Originated Loans and Leases [Member] | Other [Member] | Equal to Greater than 90 Days Past Due and Still Accruing [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		141	153
Originated Loans and Leases [Member] | Total Commercial Loans and Leases [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		73,077	63,308
Non- Accrual		52,092	44,424
Current		10,179,685	8,890,505
Total Loans		10,252,762	8,953,813
Originated Loans and Leases [Member] | Total Commercial Loans and Leases [Member] | 30-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		20,839	18,686
Originated Loans and Leases [Member] | Total Commercial Loans and Leases [Member] | Equal to Greater than 90 Days Past Due and Still Accruing [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		146	198
Originated Loans and Leases [Member] | Direct Installment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		16,330	26,554
Non- Accrual		7,888	8,896
Current		1,654,634	1,729,159
Total Loans		1,670,964	1,755,713
Originated Loans and Leases [Member] | Direct Installment [Member] | 30-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		7,779	13,192
Originated Loans and Leases [Member] | Direct Installment [Member] | Equal to Greater than 90 Days Past Due and Still Accruing [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		663	4,466
Originated Loans and Leases [Member] | Residential Mortgages [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		27,138	22,699
Non- Accrual		6,110	5,771
Current		2,430,242	2,013,527
Total Loans		2,457,380	2,036,226
Originated Loans and Leases [Member] | Residential Mortgages [Member] | 30-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		19,274	14,096
Originated Loans and Leases [Member] | Residential Mortgages [Member] | Equal to Greater than 90 Days Past Due and Still Accruing [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		1,754	2,832
Originated Loans and Leases [Member] | Indirect Installment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		11,657	13,164
Non- Accrual		2,263	2,240
Current		1,868,830	1,435,104
Total Loans		1,880,487	1,448,268
Originated Loans and Leases [Member] | Indirect Installment [Member] | 30-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		8,889	10,313
Originated Loans and Leases [Member] | Indirect Installment [Member] | Equal to Greater than 90 Days Past Due and Still Accruing [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		505	611
Originated Loans and Leases [Member] | Consumer Lines of Credit [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		9,526	9,186
Non- Accrual		3,583	2,313
Current		1,106,850	1,142,284
Total Loans		1,116,376	1,151,470
Originated Loans and Leases [Member] | Consumer Lines of Credit [Member] | 30-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		5,039	5,859
Originated Loans and Leases [Member] | Consumer Lines of Credit [Member] | Equal to Greater than 90 Days Past Due and Still Accruing [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		904	1,014
Originated Loans and Leases [Member] | Consumer Loan [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		64,651	71,603
Non- Accrual		19,844	19,220
Current		7,060,556	6,320,074
Total Loans		7,125,207	6,391,677
Originated Loans and Leases [Member] | Consumer Loan [Member] | 30-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		40,981	43,460
Originated Loans and Leases [Member] | Consumer Loan [Member] | Equal to Greater than 90 Days Past Due and Still Accruing [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		3,826	8,923
Acquired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		130,111	167,867
Non- Accrual		7,963	10,991
Current		4,564,232	5,768,610
(Discount) Premium		(232,909)	(283,201)
Total Loans		4,461,434	5,653,276
Loans sold	$ 28,500
Acquired Loans [Member] | 30-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		60,832	66,926
Acquired Loans [Member] | Equal to Greater than 90 Days Past Due and Still Accruing [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		61,316	89,950
Acquired Loans [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		84,098	101,995
Non- Accrual		3,030	3,975
Current		2,956,931	3,657,152
(Discount) Premium		(173,918)	(192,066)
Total Loans		2,867,111	3,567,081
Acquired Loans [Member] | Commercial Real Estate [Member] | 30-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		33,024	34,928
Acquired Loans [Member] | Commercial Real Estate [Member] | Equal to Greater than 90 Days Past Due and Still Accruing [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		48,044	63,092
Acquired Loans [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		8,757	15,302
Non- Accrual		4,252	5,663
Current		492,430	698,265
(Discount) Premium		(30,552)	(38,147)
Total Loans		470,635	675,420
Acquired Loans [Member] | Commercial and Industrial [Member] | 30-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		1,704	3,187
Acquired Loans [Member] | Commercial and Industrial [Member] | Equal to Greater than 90 Days Past Due and Still Accruing [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		2,801	6,452
Acquired Loans [Member] | Commercial Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		92,855	117,297
Non- Accrual		7,282	9,638
Current		3,449,361	4,355,417
(Discount) Premium		(204,470)	(230,213)
Total Loans		3,337,746	4,242,501
Acquired Loans [Member] | Commercial Loans [Member] | 30-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		34,728	38,115
Acquired Loans [Member] | Commercial Loans [Member] | Equal to Greater than 90 Days Past Due and Still Accruing [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		50,845	69,544
Acquired Loans [Member] | Commercial Leases [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans		0	0
Acquired Loans [Member] | Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans		0	0
Acquired Loans [Member] | Total Commercial Loans and Leases [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans		3,337,746	4,242,501
Acquired Loans [Member] | Direct Installment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		5,966	7,280
Non- Accrual		0	0
Current		101,669	141,386
(Discount) Premium		(476)	1,156
Total Loans		107,159	149,822
Acquired Loans [Member] | Direct Installment [Member] | 30-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		4,168	5,267
Acquired Loans [Member] | Direct Installment [Member] | Equal to Greater than 90 Days Past Due and Still Accruing [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		1,798	2,013
Acquired Loans [Member] | Residential Mortgages [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		21,665	32,330
Non- Accrual		0	0
Current		522,844	675,499
(Discount) Premium		(17,227)	(41,364)
Total Loans		527,282	666,465
Acquired Loans [Member] | Residential Mortgages [Member] | 30-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		15,237	17,191
Acquired Loans [Member] | Residential Mortgages [Member] | Equal to Greater than 90 Days Past Due and Still Accruing [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		6,428	15,139
Acquired Loans [Member] | Indirect Installment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		1	1
Non- Accrual		0	0
Current		0	10
(Discount) Premium		161	154
Total Loans		162	165
Acquired Loans [Member] | Indirect Installment [Member] | 30-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		0	0
Acquired Loans [Member] | Indirect Installment [Member] | Equal to Greater than 90 Days Past Due and Still Accruing [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		1	1
Acquired Loans [Member] | Consumer Lines of Credit [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		9,624	10,959
Non- Accrual		681	1,353
Current		490,358	596,298
(Discount) Premium		(10,897)	(12,934)
Total Loans		489,085	594,323
Acquired Loans [Member] | Consumer Lines of Credit [Member] | 30-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		6,699	6,353
Acquired Loans [Member] | Consumer Lines of Credit [Member] | Equal to Greater than 90 Days Past Due and Still Accruing [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		2,244	3,253
Acquired Loans [Member] | Consumer Loan [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		37,256	50,570
Non- Accrual		681	1,353
Current		1,114,871	1,413,193
(Discount) Premium		(28,439)	(52,988)
Total Loans		1,123,688	1,410,775
Acquired Loans [Member] | Consumer Loan [Member] | 30-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		26,104	28,811
Acquired Loans [Member] | Consumer Loan [Member] | Equal to Greater than 90 Days Past Due and Still Accruing [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		$ 10,471	$ 20,406

XML

LOANS AND LEASES - Commercial Loans and Leases by Credit Quality (Detail) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	$ 21,839,403	$ 20,998,766
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	8,845,740	8,741,864
Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	4,363,457	4,170,667
Commercial Leases [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	346,579	266,720
Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	34,732	17,063
Total Commercial Loans and Leases [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	13,590,508	13,196,314
Originated Loans and Leases [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	17,377,969	15,345,490
Originated Loans and Leases [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	5,978,629	5,174,783
Originated Loans and Leases [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	3,892,822	3,495,247
Originated Loans and Leases [Member] | Commercial Leases [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	346,579	266,720
Originated Loans and Leases [Member] | Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	34,732	17,063
Originated Loans and Leases [Member] | Total Commercial Loans and Leases [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	10,252,762	8,953,813
Acquired Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	4,461,434	5,653,276
Acquired Loans [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	2,867,111	3,567,081
Acquired Loans [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	470,635	675,420
Acquired Loans [Member] | Commercial Leases [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	0	0
Acquired Loans [Member] | Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	0	0
Acquired Loans [Member] | Total Commercial Loans and Leases [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	3,337,746	4,242,501
Pass [Member] | Originated Loans and Leases [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	5,716,992	4,922,872
Pass [Member] | Originated Loans and Leases [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	3,626,199	3,266,966
Pass [Member] | Originated Loans and Leases [Member] | Commercial Leases [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	335,439	260,235
Pass [Member] | Originated Loans and Leases [Member] | Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	33,481	15,866
Pass [Member] | Originated Loans and Leases [Member] | Total Commercial Loans and Leases [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	9,712,111	8,465,939
Pass [Member] | Acquired Loans [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	2,481,679	3,102,788
Pass [Member] | Acquired Loans [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	408,326	603,611
Pass [Member] | Acquired Loans [Member] | Total Commercial Loans and Leases [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	2,890,005	3,706,399
Special Mention [Member] | Originated Loans and Leases [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	144,800	152,744
Special Mention [Member] | Originated Loans and Leases [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	187,032	132,975
Special Mention [Member] | Originated Loans and Leases [Member] | Commercial Leases [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	1,623	4,425
Special Mention [Member] | Originated Loans and Leases [Member] | Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	110	43
Special Mention [Member] | Originated Loans and Leases [Member] | Total Commercial Loans and Leases [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	333,565	290,187
Special Mention [Member] | Acquired Loans [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	181,813	250,987
Special Mention [Member] | Acquired Loans [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	20,605	26,059
Special Mention [Member] | Acquired Loans [Member] | Total Commercial Loans and Leases [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	202,418	277,046
Substandard [Member] | Originated Loans and Leases [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	116,793	98,728
Substandard [Member] | Originated Loans and Leases [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	74,879	92,091
Substandard [Member] | Originated Loans and Leases [Member] | Commercial Leases [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	9,517	2,060
Substandard [Member] | Originated Loans and Leases [Member] | Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	1,141	1,154
Substandard [Member] | Originated Loans and Leases [Member] | Total Commercial Loans and Leases [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	202,330	194,033
Substandard [Member] | Acquired Loans [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	203,448	213,089
Substandard [Member] | Acquired Loans [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	41,704	45,661
Substandard [Member] | Acquired Loans [Member] | Total Commercial Loans and Leases [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	245,152	258,750
Doubtful [Member] | Originated Loans and Leases [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	44	439
Doubtful [Member] | Originated Loans and Leases [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	4,712	3,215
Doubtful [Member] | Originated Loans and Leases [Member] | Commercial Leases [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	0	0
Doubtful [Member] | Originated Loans and Leases [Member] | Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	0	0
Doubtful [Member] | Originated Loans and Leases [Member] | Total Commercial Loans and Leases [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	4,756	3,654
Doubtful [Member] | Acquired Loans [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	171	217
Doubtful [Member] | Acquired Loans [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	0	89
Doubtful [Member] | Acquired Loans [Member] | Total Commercial Loans and Leases [Member]
Financing Receivable, Recorded Investment [Line Items]
Total commercial loans and leases	$ 171	$ 306

XML

LOANS AND LEASES - Consumer Loans by Payment Status (Detail) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Credit Quality [Line Items]
Carrying amount	$ 21,839,403	$ 20,998,766
Direct Installment [Member]
Credit Quality [Line Items]
Carrying amount	1,778,123	1,905,535
Residential Mortgages [Member]
Credit Quality [Line Items]
Carrying amount	2,984,662	2,702,691
Indirect Installment [Member]
Credit Quality [Line Items]
Carrying amount	1,880,649	1,448,433
Originated Loans and Leases [Member]
Credit Quality [Line Items]
Carrying amount	17,377,969	15,345,490
Originated Loans and Leases [Member] | Direct Installment [Member]
Credit Quality [Line Items]
Carrying amount	1,670,964	1,755,713
Originated Loans and Leases [Member] | Residential Mortgages [Member]
Credit Quality [Line Items]
Carrying amount	2,457,380	2,036,226
Originated Loans and Leases [Member] | Indirect Installment [Member]
Credit Quality [Line Items]
Carrying amount	1,880,487	1,448,268
Acquired Loans [Member]
Credit Quality [Line Items]
Carrying amount	4,461,434	5,653,276
Acquired Loans [Member] | Direct Installment [Member]
Credit Quality [Line Items]
Carrying amount	107,159	149,822
Acquired Loans [Member] | Residential Mortgages [Member]
Credit Quality [Line Items]
Carrying amount	527,282	666,465
Acquired Loans [Member] | Indirect Installment [Member]
Credit Quality [Line Items]
Carrying amount	162	165
Consumer Loan [Member] | Originated Loans and Leases [Member]
Credit Quality [Line Items]
Carrying amount	7,125,207	6,391,677
Consumer Loan [Member] | Originated Loans and Leases [Member] | Performing [Member]
Credit Quality [Line Items]
Carrying amount	7,086,977	6,352,285
Consumer Loan [Member] | Originated Loans and Leases [Member] | Non-Performing [Member]
Credit Quality [Line Items]
Carrying amount	38,230	39,392
Consumer Loan [Member] | Originated Loans and Leases [Member] | Direct Installment [Member]
Credit Quality [Line Items]
Carrying amount	1,670,964	1,755,713
Consumer Loan [Member] | Originated Loans and Leases [Member] | Direct Installment [Member] | Performing [Member]
Credit Quality [Line Items]
Carrying amount	1,656,375	1,739,060
Consumer Loan [Member] | Originated Loans and Leases [Member] | Direct Installment [Member] | Non-Performing [Member]
Credit Quality [Line Items]
Carrying amount	14,589	16,653
Consumer Loan [Member] | Originated Loans and Leases [Member] | Residential Mortgages [Member]
Credit Quality [Line Items]
Carrying amount	2,457,380	2,036,226
Consumer Loan [Member] | Originated Loans and Leases [Member] | Residential Mortgages [Member] | Performing [Member]
Credit Quality [Line Items]
Carrying amount	2,441,374	2,019,816
Consumer Loan [Member] | Originated Loans and Leases [Member] | Residential Mortgages [Member] | Non-Performing [Member]
Credit Quality [Line Items]
Carrying amount	16,006	16,410
Consumer Loan [Member] | Originated Loans and Leases [Member] | Indirect Installment [Member]
Credit Quality [Line Items]
Carrying amount	1,880,487	1,448,268
Consumer Loan [Member] | Originated Loans and Leases [Member] | Indirect Installment [Member] | Performing [Member]
Credit Quality [Line Items]
Carrying amount	1,878,224	1,445,833
Consumer Loan [Member] | Originated Loans and Leases [Member] | Indirect Installment [Member] | Non-Performing [Member]
Credit Quality [Line Items]
Carrying amount	2,263	2,435
Consumer Loan [Member] | Originated Loans and Leases [Member] | Consumer Lines of Credit [Member]
Credit Quality [Line Items]
Carrying amount	1,116,376	1,151,470
Consumer Loan [Member] | Originated Loans and Leases [Member] | Consumer Lines of Credit [Member] | Performing [Member]
Credit Quality [Line Items]
Carrying amount	1,111,004	1,147,576
Consumer Loan [Member] | Originated Loans and Leases [Member] | Consumer Lines of Credit [Member] | Non-Performing [Member]
Credit Quality [Line Items]
Carrying amount	5,372	3,894
Consumer Loan [Member] | Acquired Loans [Member]
Credit Quality [Line Items]
Carrying amount	1,123,688	1,410,775
Consumer Loan [Member] | Acquired Loans [Member] | Performing [Member]
Credit Quality [Line Items]
Carrying amount	1,122,358	1,408,765
Consumer Loan [Member] | Acquired Loans [Member] | Non-Performing [Member]
Credit Quality [Line Items]
Carrying amount	1,330	2,010
Consumer Loan [Member] | Acquired Loans [Member] | Direct Installment [Member]
Credit Quality [Line Items]
Carrying amount	107,159	149,822
Consumer Loan [Member] | Acquired Loans [Member] | Direct Installment [Member] | Performing [Member]
Credit Quality [Line Items]
Carrying amount	107,091	149,751
Consumer Loan [Member] | Acquired Loans [Member] | Direct Installment [Member] | Non-Performing [Member]
Credit Quality [Line Items]
Carrying amount	68	71
Consumer Loan [Member] | Acquired Loans [Member] | Residential Mortgages [Member]
Credit Quality [Line Items]
Carrying amount	527,282	666,465
Consumer Loan [Member] | Acquired Loans [Member] | Residential Mortgages [Member] | Performing [Member]
Credit Quality [Line Items]
Carrying amount	527,282	666,465
Consumer Loan [Member] | Acquired Loans [Member] | Residential Mortgages [Member] | Non-Performing [Member]
Credit Quality [Line Items]
Carrying amount	0	0
Consumer Loan [Member] | Acquired Loans [Member] | Indirect Installment [Member]
Credit Quality [Line Items]
Carrying amount	162	165
Consumer Loan [Member] | Acquired Loans [Member] | Indirect Installment [Member] | Performing [Member]
Credit Quality [Line Items]
Carrying amount	162	165
Consumer Loan [Member] | Acquired Loans [Member] | Indirect Installment [Member] | Non-Performing [Member]
Credit Quality [Line Items]
Carrying amount	0	0
Consumer Loan [Member] | Acquired Loans [Member] | Consumer Lines of Credit [Member]
Credit Quality [Line Items]
Carrying amount	489,085	594,323
Consumer Loan [Member] | Acquired Loans [Member] | Consumer Lines of Credit [Member] | Performing [Member]
Credit Quality [Line Items]
Carrying amount	487,823	592,384
Consumer Loan [Member] | Acquired Loans [Member] | Consumer Lines of Credit [Member] | Non-Performing [Member]
Credit Quality [Line Items]
Carrying amount	$ 1,262	$ 1,939

XML

LOANS AND LEASES - Impaired Loans and Lease (Detail) - Originated Loans and Leases [Member] - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2018	Dec. 31, 2017
Financial Receivables Impaired Or Restructured [Line Items]
Unpaid Contractual Principal Balance	$ 103,572	$ 106,476
Recorded Investment With No Specific Reserve	80,865	74,309
Recorded Investment With Specific Reserve	8,907	7,363
Total Recorded Investment	89,772	81,672
Specific Reserve	4,756	3,654
Average Recorded Investment	86,286	88,636
Commercial Real Estate [Member]
Financial Receivables Impaired Or Restructured [Line Items]
Unpaid Contractual Principal Balance	20,051	27,718
Recorded Investment With No Specific Reserve	17,576	21,748
Recorded Investment With Specific Reserve	635	2,906
Total Recorded Investment	18,211	24,654
Specific Reserve	44	439
Average Recorded Investment	16,360	24,413
Commercial and Industrial [Member]
Financial Receivables Impaired Or Restructured [Line Items]
Unpaid Contractual Principal Balance	31,219	29,307
Recorded Investment With No Specific Reserve	19,533	11,595
Recorded Investment With Specific Reserve	8,272	4,457
Total Recorded Investment	27,805	16,052
Specific Reserve	4,712	3,215
Average Recorded Investment	27,096	23,907
Commercial Leases [Member]
Financial Receivables Impaired Or Restructured [Line Items]
Unpaid Contractual Principal Balance	5,526	1,574
Recorded Investment With No Specific Reserve	5,526	1,574
Recorded Investment With Specific Reserve	0	0
Total Recorded Investment	5,526	1,574
Specific Reserve	0	0
Average Recorded Investment	3,372	1,386
Total Commercial Loans and Leases [Member]
Financial Receivables Impaired Or Restructured [Line Items]
Unpaid Contractual Principal Balance	56,796	58,599
Recorded Investment With No Specific Reserve	42,635	34,917
Recorded Investment With Specific Reserve	8,907	7,363
Total Recorded Investment	51,542	42,280
Specific Reserve	4,756	3,654
Average Recorded Investment	46,828	49,706
Direct Installment [Member]
Financial Receivables Impaired Or Restructured [Line Items]
Unpaid Contractual Principal Balance	17,554	19,375
Recorded Investment With No Specific Reserve	14,589	16,653
Recorded Investment With Specific Reserve	0	0
Total Recorded Investment	14,589	16,653
Specific Reserve	0	0
Average Recorded Investment	15,191	16,852
Residential Mortgages [Member]
Financial Receivables Impaired Or Restructured [Line Items]
Unpaid Contractual Principal Balance	17,316	17,754
Recorded Investment With No Specific Reserve	16,006	16,410
Recorded Investment With Specific Reserve	0	0
Total Recorded Investment	16,006	16,410
Specific Reserve	0	0
Average Recorded Investment	16,887	15,984
Indirect Installment [Member]
Financial Receivables Impaired Or Restructured [Line Items]
Unpaid Contractual Principal Balance	4,576	5,709
Recorded Investment With No Specific Reserve	2,263	2,435
Recorded Investment With Specific Reserve	0	0
Total Recorded Investment	2,263	2,435
Specific Reserve	0	0
Average Recorded Investment	2,208	2,279
Consumer Lines of Credit [Member]
Financial Receivables Impaired Or Restructured [Line Items]
Unpaid Contractual Principal Balance	7,330	5,039
Recorded Investment With No Specific Reserve	5,372	3,894
Recorded Investment With Specific Reserve	0	0
Total Recorded Investment	5,372	3,894
Specific Reserve	0	0
Average Recorded Investment	5,172	3,815
Consumer Loan [Member]
Financial Receivables Impaired Or Restructured [Line Items]
Unpaid Contractual Principal Balance	46,776	47,877
Recorded Investment With No Specific Reserve	38,230	39,392
Recorded Investment With Specific Reserve	0	0
Total Recorded Investment	38,230	39,392
Specific Reserve	0	0
Average Recorded Investment	$ 39,458	$ 38,930

XML

LOANS AND LEASES - Additional Allowance for Credit Losses Relating to Acquired Loans (Detail) - USD ($) $ in Thousands	Sep. 30, 2018	Jun. 30, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Dec. 31, 2016
Financing Receivable, Allowance for Credit Losses [Line Items]
Total allowance on acquired loans	$ 177,881	$ 176,574	$ 175,380	$ 170,016	$ 165,699	$ 158,059
Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total allowance on acquired loans	4,570	$ 3,959	6,698	$ 6,782	$ 6,607	$ 7,268
Acquired Loans [Member] | Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total allowance on acquired loans	2,440		4,976
Acquired Loans [Member] | Commercial and Industrial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total allowance on acquired loans	639		(415)
Acquired Loans [Member] | Total Commercial Loans and Leases [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total allowance on acquired loans	3,079		4,561
Acquired Loans [Member] | Direct Installment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total allowance on acquired loans	967		1,553
Acquired Loans [Member] | Residential Mortgages [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total allowance on acquired loans	520		484
Acquired Loans [Member] | Indirect Installment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total allowance on acquired loans	226		177
Acquired Loans [Member] | Consumer Lines of Credit [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total allowance on acquired loans	(222)		(77)
Acquired Loans [Member] | Consumer Loan [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total allowance on acquired loans	$ 1,491		$ 2,137

XML

LOANS AND LEASES - Summary of Payment Status of TDRs (Detail) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings ("TDRs")	$ 48,064	$ 53,991
Originated Loans and Leases [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings ("TDRs")	44,644	50,183
Acquired Loans [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings ("TDRs")	3,420	3,808
Performing [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings ("TDRs")	17,030	19,804
Performing [Member] | Originated Loans and Leases [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings ("TDRs")	16,963	19,538
Performing [Member] | Acquired Loans [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings ("TDRs")	67	266
Non-Performing [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings ("TDRs")	22,322	23,481
Non-Performing [Member] | Originated Loans and Leases [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings ("TDRs")	19,060	20,173
Non-Performing [Member] | Acquired Loans [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings ("TDRs")	3,262	3,308
Non-Accrual [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings ("TDRs")	8,712	10,706
Non-Accrual [Member] | Originated Loans and Leases [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings ("TDRs")	8,621	10,472
Non-Accrual [Member] | Acquired Loans [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings ("TDRs")	$ 91	$ 234

XML

LOANS AND LEASES - Reserve for Commercial TDRs Included in Allowance for Credit Losses (Detail) - USD ($) $ in Thousands	Sep. 30, 2018	Jun. 30, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Dec. 31, 2016
Financing Receivable, Modifications [Line Items]
Total allowance on acquired loans	$ 177,881	$ 176,574	$ 175,380	$ 170,016	$ 165,699	$ 158,059
Specific Reserves for Commercial TDRs [Member] | Total Commercial Loans and Leases [Member]
Financing Receivable, Modifications [Line Items]
Total allowance on acquired loans	0		95
Pooled Reserves for Individual Commercial Loans [Member] | Total Commercial Loans and Leases [Member]
Financing Receivable, Modifications [Line Items]
Total allowance on acquired loans	$ 551		$ 469

XML

LOANS AND LEASES - Troubled Debt Restructurings (Detail) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018 USD ($) Contract	Sep. 30, 2017 USD ($) Contract	Sep. 30, 2018 USD ($) Contract	Sep. 30, 2017 USD ($) Contract
Financing Receivable, Modifications [Line Items]
Number of Contracts | Contract	34	168	119	572
Pre- Modification Outstanding Recorded Investment	$ 1,995	$ 2,080	$ 6,630	$ 10,832
Post- Modification Outstanding Recorded Investment	$ 1,960	$ 1,935	$ 6,046	$ 10,688
Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts | Contract	3	0	4	2
Pre- Modification Outstanding Recorded Investment	$ 507	$ 0	$ 656	$ 595
Post- Modification Outstanding Recorded Investment	$ 494	$ 0	$ 614	$ 560
Commercial and Industrial [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts | Contract	1	1	12	3
Pre- Modification Outstanding Recorded Investment	$ 15	$ 15	$ 662	$ 3,568
Post- Modification Outstanding Recorded Investment	$ 0	$ 10	$ 633	$ 4,169
Total Commercial Loans and Leases [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts | Contract	4	1	16	5
Pre- Modification Outstanding Recorded Investment	$ 522	$ 15	$ 1,318	$ 4,163
Post- Modification Outstanding Recorded Investment	$ 494	$ 10	$ 1,247	$ 4,729
Direct Installment [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts | Contract	15	141	65	474
Pre- Modification Outstanding Recorded Investment	$ 650	$ 1,037	$ 3,215	$ 4,014
Post- Modification Outstanding Recorded Investment	$ 638	$ 919	$ 2,941	$ 3,580
Residential Mortgages [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts | Contract	4	14	13	30
Pre- Modification Outstanding Recorded Investment	$ 283	$ 946	$ 898	$ 1,539
Post- Modification Outstanding Recorded Investment	$ 279	$ 952	$ 854	$ 1,446
Indirect Installment [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts | Contract	0	3	0	12
Pre- Modification Outstanding Recorded Investment	$ 0	$ 5	$ 0	$ 36
Post- Modification Outstanding Recorded Investment	$ 0	$ 4	$ 0	$ 32
Consumer Lines of Credit [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts | Contract	11	9	25	51
Pre- Modification Outstanding Recorded Investment	$ 540	$ 77	$ 1,199	$ 1,080
Post- Modification Outstanding Recorded Investment	$ 549	$ 50	$ 1,004	$ 901
Consumer Loan [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts | Contract	30	167	103	567
Pre- Modification Outstanding Recorded Investment	$ 1,473	$ 2,065	$ 5,312	$ 6,669
Post- Modification Outstanding Recorded Investment	$ 1,466	$ 1,925	$ 4,799	$ 5,959

XML

LOANS AND LEASES - Originated Troubled Debt Restructurings, Payment Default (Detail) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018 USD ($) Contract	Sep. 30, 2017 USD ($) Contract	Sep. 30, 2018 USD ($) Contract	Sep. 30, 2017 USD ($) Contract
Financing Receivable, Modifications [Line Items]
Number of Contracts | Contract	10	48	16	115
Recorded Investment | $	$ 1,476	$ 856	$ 1,895	$ 1,442
Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts | Contract	3	1	3	1
Recorded Investment | $	$ 1,078	$ 463	$ 1,078	$ 463
Commercial and Industrial [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts | Contract	2	0	1	3
Recorded Investment | $	$ 16	$ 0	$ 9	$ 326
Total Commercial Loans and Leases [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts | Contract	5	1	4	4
Recorded Investment | $	$ 1,094	$ 463	$ 1,087	$ 789
Direct Installment [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts | Contract	3	39	5	91
Recorded Investment | $	$ 274	$ 265	$ 332	$ 278
Residential Mortgages [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts | Contract	2	1	4	4
Recorded Investment | $	$ 108	$ 80	$ 224	$ 264
Indirect Installment [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts | Contract	0	4	0	12
Recorded Investment | $	$ 0	$ 22	$ 0	$ 22
Consumer Lines of Credit [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts | Contract	0	3	3	4
Recorded Investment | $	$ 0	$ 26	$ 252	$ 89
Consumer Loan [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts | Contract	5	47	12	111
Recorded Investment | $	$ 382	$ 393	$ 808	$ 653

XML

ALLOWANCE FOR CREDIT LOSSES - Changes in Allowance for Credit Losses (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Allowance for Loan and Lease Losses [Roll Forward]
Balance at Beginning of Period	$ 176,574	$ 165,699	$ 175,380	$ 158,059
Charge- Offs	(17,247)	(15,335)	(53,788)	(41,763)
Recoveries	2,579	2,884	10,265	9,346
Net Charge- Offs	(14,668)	(12,451)	(43,523)	(32,417)
Provision for credit losses	15,975	16,768	46,024	44,374
Balance at End of Period	177,881	170,016	177,881	170,016
Originated Loans and Leases [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Balance at Beginning of Period	172,615	159,092	168,682	150,791
Charge- Offs	(16,534)	(15,092)	(48,690)	(40,963)
Recoveries	2,377	2,059	8,660	7,356
Net Charge- Offs	(14,157)	(13,033)	(40,030)	(33,607)
Provision for credit losses	14,853	17,175	44,659	46,050
Balance at End of Period	173,311	163,234	173,311	163,234
Acquired Loans [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Balance at Beginning of Period	3,959	6,607	6,698	7,268
Charge- Offs	(713)	(243)	(5,098)	(800)
Recoveries	202	825	1,605	1,990
Net Charge- Offs	(511)	582	(3,493)	1,190
Provision for credit losses	1,122	(407)	1,365	(1,676)
Balance at End of Period	4,570	6,782	4,570	6,782
Commercial Real Estate [Member] | Originated Loans and Leases [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Balance at Beginning of Period	50,587	46,958	50,281	46,635
Charge- Offs	(727)	(610)	(5,206)	(1,916)
Recoveries	567	93	1,669	959
Net Charge- Offs	(160)	(517)	(3,537)	(957)
Provision for credit losses	4,256	1,682	7,939	2,445
Balance at End of Period	54,683	48,123	54,683	48,123
Commercial Real Estate [Member] | Acquired Loans [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Balance at Beginning of Period			4,976
Balance at End of Period	2,440		2,440
Commercial and Industrial [Member] | Originated Loans and Leases [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Balance at Beginning of Period	53,689	54,108	51,963	47,991
Charge- Offs	(2,432)	(6,592)	(14,479)	(16,791)
Recoveries	373	298	1,899	955
Net Charge- Offs	(2,059)	(6,294)	(12,580)	(15,836)
Provision for credit losses	906	5,889	13,153	21,548
Balance at End of Period	52,536	53,703	52,536	53,703
Commercial and Industrial [Member] | Acquired Loans [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Balance at Beginning of Period			(415)
Balance at End of Period	639		639
Commercial Leases [Member] | Originated Loans and Leases [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Balance at Beginning of Period	7,039	4,122	5,646	3,280
Charge- Offs	(51)	(112)	(258)	(826)
Recoveries	2	1	26	5
Net Charge- Offs	(49)	(111)	(232)	(821)
Provision for credit losses	510	818	2,086	2,370
Balance at End of Period	7,500	4,829	7,500	4,829
Other [Member] | Originated Loans and Leases [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Balance at Beginning of Period	1,996	1,838	1,843	1,392
Charge- Offs	(918)	(1,386)	(3,293)	(3,180)
Recoveries	274	298	843	978
Net Charge- Offs	(644)	(1,088)	(2,450)	(2,202)
Provision for credit losses	726	1,018	2,685	2,578
Balance at End of Period	2,078	1,768	2,078	1,768
Total Commercial Loans and Leases [Member] | Originated Loans and Leases [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Balance at Beginning of Period	113,311	107,026	109,733	99,298
Charge- Offs	(4,128)	(8,700)	(23,236)	(22,713)
Recoveries	1,216	690	4,437	2,897
Net Charge- Offs	(2,912)	(8,010)	(18,799)	(19,816)
Provision for credit losses	6,398	9,407	25,863	28,941
Balance at End of Period	116,797	108,423	116,797	108,423
Total Commercial Loans and Leases [Member] | Acquired Loans [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Balance at Beginning of Period			4,561
Balance at End of Period	3,079		3,079
Direct Installment [Member] | Originated Loans and Leases [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Balance at Beginning of Period	20,279	20,736	20,936	21,391
Charge- Offs	(9,436)	(3,247)	(15,828)	(9,366)
Recoveries	276	402	1,179	1,611
Net Charge- Offs	(9,160)	(2,845)	(14,649)	(7,755)
Provision for credit losses	2,714	2,786	7,546	7,041
Balance at End of Period	13,833	20,677	13,833	20,677
Direct Installment [Member] | Acquired Loans [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Balance at Beginning of Period			1,553
Balance at End of Period	967		967
Residential Mortgages [Member] | Originated Loans and Leases [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Balance at Beginning of Period	15,163	11,252	15,507	10,082
Charge- Offs	(77)	(155)	(470)	(517)
Recoveries	7	8	114	179
Net Charge- Offs	(70)	(147)	(356)	(338)
Provision for credit losses	2,576	1,630	2,518	2,991
Balance at End of Period	17,669	12,735	17,669	12,735
Residential Mortgages [Member] | Acquired Loans [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Balance at Beginning of Period			484
Balance at End of Period	520		520
Indirect Installment [Member] | Originated Loans and Leases [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Balance at Beginning of Period	13,401	10,574	11,967	10,564
Charge- Offs	(2,061)	(2,468)	(6,688)	(6,804)
Recoveries	620	861	2,489	2,256
Net Charge- Offs	(1,441)	(1,607)	(4,199)	(4,548)
Provision for credit losses	2,493	2,380	6,685	5,331
Balance at End of Period	14,453	11,347	14,453	11,347
Indirect Installment [Member] | Acquired Loans [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Balance at Beginning of Period			177
Balance at End of Period	226		226
Consumer Lines of Credit [Member] | Originated Loans and Leases [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Balance at Beginning of Period	10,461	9,504	10,539	9,456
Charge- Offs	(832)	(522)	(2,468)	(1,563)
Recoveries	258	98	441	413
Net Charge- Offs	(574)	(424)	(2,027)	(1,150)
Provision for credit losses	672	972	2,047	1,746
Balance at End of Period	10,559	10,052	10,559	10,052
Consumer Lines of Credit [Member] | Acquired Loans [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Balance at Beginning of Period			(77)
Balance at End of Period	(222)		(222)
Consumer Loan [Member] | Originated Loans and Leases [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Balance at Beginning of Period	59,304	52,066	58,949	51,493
Charge- Offs	(12,406)	(6,392)	(25,454)	(18,250)
Recoveries	1,161	1,369	4,223	4,459
Net Charge- Offs	(11,245)	(5,023)	(21,231)	(13,791)
Provision for credit losses	8,455	7,768	18,796	17,109
Balance at End of Period	56,514	54,811	56,514	54,811
Consumer Loan [Member] | Acquired Loans [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Balance at Beginning of Period			2,137
Balance at End of Period	1,491		1,491
Purchased Credit-Impaired Loans [Member] | Acquired Loans [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Balance at Beginning of Period	624	640	635	572
Charge- Offs	0	(21)	0	(22)
Recoveries	0	34	0	34
Net Charge- Offs	0	13	0	12
Provision for credit losses	0	137	(11)	206
Balance at End of Period	624	790	624	790
Other Acquired Loans [Member] | Acquired Loans [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Balance at Beginning of Period	3,335	5,967	6,063	6,696
Charge- Offs	(713)	(222)	(5,098)	(778)
Recoveries	202	791	1,605	1,956
Net Charge- Offs	(511)	569	(3,493)	1,178
Provision for credit losses	1,122	(544)	1,376	(1,882)
Balance at End of Period	$ 3,946	$ 5,992	$ 3,946	$ 5,992

XML

ALLOWANCE FOR CREDIT LOSSES - Individual and Collective Allowance for Credit Losses (Detail) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Valuation Allowance [Line Items]
Originated loans and leases outstanding, loans and leases	$ 21,839,403	$ 20,998,766
Commercial Real Estate [Member]
Valuation Allowance [Line Items]
Originated loans and leases outstanding, loans and leases	8,845,740	8,741,864
Commercial and Industrial [Member]
Valuation Allowance [Line Items]
Originated loans and leases outstanding, loans and leases	4,363,457	4,170,667
Commercial Leases [Member]
Valuation Allowance [Line Items]
Originated loans and leases outstanding, loans and leases	346,579	266,720
Other [Member]
Valuation Allowance [Line Items]
Originated loans and leases outstanding, loans and leases	34,732	17,063
Total Commercial Loans and Leases [Member]
Valuation Allowance [Line Items]
Originated loans and leases outstanding, loans and leases	13,590,508	13,196,314
Direct Installment [Member]
Valuation Allowance [Line Items]
Originated loans and leases outstanding, loans and leases	1,778,123	1,905,535
Residential Mortgages [Member]
Valuation Allowance [Line Items]
Originated loans and leases outstanding, loans and leases	2,984,662	2,702,691
Indirect Installment [Member]
Valuation Allowance [Line Items]
Originated loans and leases outstanding, loans and leases	1,880,649	1,448,433
Consumer Lines of Credit [Member]
Valuation Allowance [Line Items]
Originated loans and leases outstanding, loans and leases	1,605,461	1,745,793
Consumer Loan [Member]
Valuation Allowance [Line Items]
Originated loans and leases outstanding, loans and leases	8,248,895	7,802,452
Originated Loans and Leases [Member]
Valuation Allowance [Line Items]
Originated allowance, individually evaluated for impairment	4,756	3,654
Originated allowance, collectively evaluated for impairment	168,555	165,028
Originated loans and leases outstanding, loans and leases	17,377,969	15,345,490
Originated loans and leases outstanding, individually evaluated for impairment	32,888	20,986
Originated loans and leases outstanding, collectively evaluated for impairment	17,345,081	15,324,504
Originated Loans and Leases [Member] | Commercial Real Estate [Member]
Valuation Allowance [Line Items]
Originated allowance, individually evaluated for impairment	44	439
Originated allowance, collectively evaluated for impairment	54,639	49,842
Originated loans and leases outstanding, loans and leases	5,978,629	5,174,783
Originated loans and leases outstanding, individually evaluated for impairment	11,198	11,114
Originated loans and leases outstanding, collectively evaluated for impairment	5,967,431	5,163,669
Originated Loans and Leases [Member] | Commercial and Industrial [Member]
Valuation Allowance [Line Items]
Originated allowance, individually evaluated for impairment	4,712	3,215
Originated allowance, collectively evaluated for impairment	47,824	48,748
Originated loans and leases outstanding, loans and leases	3,892,822	3,495,247
Originated loans and leases outstanding, individually evaluated for impairment	21,690	9,872
Originated loans and leases outstanding, collectively evaluated for impairment	3,871,132	3,485,375
Originated Loans and Leases [Member] | Commercial Leases [Member]
Valuation Allowance [Line Items]
Originated allowance, individually evaluated for impairment	0	0
Originated allowance, collectively evaluated for impairment	7,500	5,646
Originated loans and leases outstanding, loans and leases	346,579	266,720
Originated loans and leases outstanding, individually evaluated for impairment	0	0
Originated loans and leases outstanding, collectively evaluated for impairment	346,579	266,720
Originated Loans and Leases [Member] | Other [Member]
Valuation Allowance [Line Items]
Originated allowance, individually evaluated for impairment	0	0
Originated allowance, collectively evaluated for impairment	2,078	1,843
Originated loans and leases outstanding, loans and leases	34,732	17,063
Originated loans and leases outstanding, individually evaluated for impairment	0	0
Originated loans and leases outstanding, collectively evaluated for impairment	34,732	17,063
Originated Loans and Leases [Member] | Total Commercial Loans and Leases [Member]
Valuation Allowance [Line Items]
Originated allowance, individually evaluated for impairment	4,756	3,654
Originated allowance, collectively evaluated for impairment	112,041	106,079
Originated loans and leases outstanding, loans and leases	10,252,762	8,953,813
Originated loans and leases outstanding, individually evaluated for impairment	32,888	20,986
Originated loans and leases outstanding, collectively evaluated for impairment	10,219,874	8,932,827
Originated Loans and Leases [Member] | Direct Installment [Member]
Valuation Allowance [Line Items]
Originated allowance, individually evaluated for impairment	0	0
Originated allowance, collectively evaluated for impairment	13,833	20,936
Originated loans and leases outstanding, loans and leases	1,670,964	1,755,713
Originated loans and leases outstanding, individually evaluated for impairment	0	0
Originated loans and leases outstanding, collectively evaluated for impairment	1,670,964	1,755,713
Originated Loans and Leases [Member] | Residential Mortgages [Member]
Valuation Allowance [Line Items]
Originated allowance, individually evaluated for impairment	0	0
Originated allowance, collectively evaluated for impairment	17,669	15,507
Originated loans and leases outstanding, loans and leases	2,457,380	2,036,226
Originated loans and leases outstanding, individually evaluated for impairment	0	0
Originated loans and leases outstanding, collectively evaluated for impairment	2,457,380	2,036,226
Originated Loans and Leases [Member] | Indirect Installment [Member]
Valuation Allowance [Line Items]
Originated allowance, individually evaluated for impairment	0	0
Originated allowance, collectively evaluated for impairment	14,453	11,967
Originated loans and leases outstanding, loans and leases	1,880,487	1,448,268
Originated loans and leases outstanding, individually evaluated for impairment	0	0
Originated loans and leases outstanding, collectively evaluated for impairment	1,880,487	1,448,268
Originated Loans and Leases [Member] | Consumer Lines of Credit [Member]
Valuation Allowance [Line Items]
Originated allowance, individually evaluated for impairment	0	0
Originated allowance, collectively evaluated for impairment	10,559	10,539
Originated loans and leases outstanding, loans and leases	1,116,376	1,151,470
Originated loans and leases outstanding, individually evaluated for impairment	0	0
Originated loans and leases outstanding, collectively evaluated for impairment	1,116,376	1,151,470
Originated Loans and Leases [Member] | Consumer Loan [Member]
Valuation Allowance [Line Items]
Originated allowance, individually evaluated for impairment	0	0
Originated allowance, collectively evaluated for impairment	56,514	58,949
Originated loans and leases outstanding, loans and leases	7,125,207	6,391,677
Originated loans and leases outstanding, individually evaluated for impairment	0	0
Originated loans and leases outstanding, collectively evaluated for impairment	$ 7,125,207	$ 6,391,677

XML

LOAN SERVICING - Mortgage Servicing Rights Activity (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Servicing Assets at Fair Value [Line Items]
Mortgage banking operations	$ 5,962	$ 5,437	$ 17,431	$ 14,400
Mortgage Servicing Rights [Member]
Servicing Assets at Fair Value [Line Items]
Mortgage loans sold with servicing retained	3,802,891		3,802,891		$ 3,256,548
Mortgage loans sold with servicing retained	295,243	305,752	814,256	1,469,352
Pretax gains resulting from above loan sales	6,116	5,865	14,938	15,136
Mortgage banking operations	2,316	1,902	6,713	5,512
Servicing Asset at Amortized Cost, Balance [Roll Forward]
Balance at beginning of period	32,970	24,444	29,053	13,521
Fair value of MSRs acquired	0	0	0	8,553
Additions	3,513	3,500	9,538	7,530
Payoffs and curtailments	(526)	(432)	(1,435)	(1,012)
Impairment charge	(13)	0	(13)	0
Amortization	(599)	(626)	(1,798)	(1,706)
Balance at end of period	35,345	26,886	35,345	26,886
Loan servicing rights, fair value, start	38,603	27,173	32,419	17,546
Loan servicing rights, fair value, end	41,715	29,004	41,715	29,004
Small Business Administration Loans [Member]
Servicing Assets at Fair Value [Line Items]
Mortgage loans sold with servicing retained	283,361		283,361		$ 305,977
Mortgage loans sold with servicing retained	10,138	16,443	33,651	42,172
Pretax gains resulting from above loan sales	849	964	3,121	1,780
Valuation allowance for servicing rights	900		900
Servicing Asset at Amortized Cost, Balance [Roll Forward]
Balance at beginning of period	4,894	5,284	5,058	0
Additions	113	391	759	655
Impairment charge	(422)	(50)	(651)	(50)
Amortization	(280)	(342)	(861)	(721)
Balance at end of period	4,305	5,283	4,305	5,283
Loan servicing rights, fair value, start	4,894	5,299	5,058	0
Loan servicing rights, fair value, end	$ 4,305	$ 5,283	$ 4,305	$ 5,283

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LOAN SERVICING - Sensitivity of Fair Value to Changes in key Assumptions (Detail) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2018	Dec. 31, 2017
Mortgage Servicing Rights [Member]
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]
Weighted average life (months)	86 months 13 days	80 months 12 days
Constant prepayment rate (annualized)	9.00%	9.90%
Discount rate	9.90%	9.90%
Sensitivity analysis of fair value, change in interest rates, plus .25%	$ 1,305	$ 1,737
Sensitivity analysis of fair value, change in interest rates, plus .50%	2,295	3,220
Sensitivity analysis of fair value, change in interest rates, minus .25%	(1,666)	(1,937)
Sensitivity analysis of fair value, change in interest rates, minus .50%	$ (3,775)	$ (4,007)
SBA-Guaranteed Loan Servicing [Member]
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]
Weighted average life (months)	54 months 22 days	63 months 16 days
Constant prepayment rate (annualized)	11.54%	9.29%
Discount rate	19.37%	14.87%
Effect on fair value due to 10% adverse change of consistent repayment rate	$ (148)	$ (145)
Effect on fair value due to 20% adverse change of consistent repayment rate	(287)	(284)
Sensitivity analysis of fair value, transferor's interests in transferred financial assets, impact of 1 percent adverse change in prepayment speed	0	0
Sensitivity analysis of fair value, transferor's interests in transferred financial assets, impact of 2 percent adverse change in prepayment speed	0	0
Effect on fair value due to 10% adverse change of discount rate	0	0
Effect on fair value due to 20% adverse change of discount rate	0	0
Sensitivity analysis of fair value, transferor's interests in transferred financial assets, impact of 1 percent adverse change in discount rate	(114)	(147)
Sensitivity analysis of fair value, transferor's interests in transferred financial assets, impact of 2 percent adverse change in discount rate	$ (221)	$ (286)

XML

LOAN SERVICING - Activity in SBA-Guaranteed Loan Servicing Asset (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Servicing Assets at Fair Value [Line Items]
Service charges	$ 31,922	$ 32,212	$ 93,113	$ 88,883
SBA-Guaranteed Loan Servicing [Member]
Servicing Assets at Fair Value [Line Items]
SBA loans sold to investors with servicing retained	283,361		283,361		$ 305,977
SBA loans sold with servicing retained	10,138	16,443	33,651	42,172
Gain from sale of SBA loan, pretax	849	964	3,121	1,780
Service charges	707	702	2,156	1,444
Valuation allowance for servicing rights	900		900
Servicing Asset at Fair Value, Amount [Roll Forward]
Balance at beginning of period	4,894	5,284	5,058	0
Fair value of servicing rights acquired	0	0	0	5,399
Additions	113	391	759	655
Impairment (charge) / recovery	(422)	(50)	(651)	(50)
Amortization	(280)	(342)	(861)	(721)
Balance at end of period	4,305	5,283	4,305	5,283
Loan servicing rights, fair value, start	4,894	5,299	5,058	0
Loan servicing rights, fair value, end	$ 4,305	$ 5,283	$ 4,305	$ 5,283

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BORROWINGS - Summary of Short-Term Borrowings (Detail) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Debt Disclosure [Abstract]
Securities sold under repurchase agreements	$ 265,029	$ 256,017
Federal Home Loan Bank advances	1,985,000	2,285,000
Federal funds purchased	1,315,000	1,000,000
Subordinated notes	114,351	137,320
Total short-term borrowings	$ 3,679,380	$ 3,678,337

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BORROWINGS - Summary of Long-Term Borrowings (Detail) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Debt Disclosure [Abstract]
Federal Home Loan Bank advances	$ 270,036	$ 310,061
Subordinated notes	87,065	87,614
Junior subordinated debt	110,707	110,347
Other subordinated debt	159,241	160,151
Total long-term borrowings	$ 627,049	$ 668,173

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BORROWINGS - Additional Information (Detail) - USD ($)	Sep. 30, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Overnight maturities	67.00%	75.70%
FHLB [Member]
Debt Instrument [Line Items]
Credit available with FHLB	$ 7,472,000,000
Credit with FHLB utilized	$ 2,300,000,000
Federal Home Loan Bank advances are scheduled to mature periodically through the year	2021
Minimum [Member] | FHLB [Member]
Debt Instrument [Line Items]
Effective interest rates	1.39%	0.95%
Maximum [Member] | FHLB [Member]
Debt Instrument [Line Items]
Effective interest rates	4.19%	4.19%

XML

BORROWINGS - Junior Subordinated Debt Trusts (Detail) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Dec. 31, 2017
Subordinated Borrowing [Line Items]
Junior subordinated debt	$ 110,707	$ 110,347
Trust Preferred Securities [Member]
Subordinated Borrowing [Line Items]
Junior subordinated debt	115,500
Common Securities [Member]
Subordinated Borrowing [Line Items]
Junior subordinated debt	3,885
F.N.B. Statutory Trust II [Member]
Subordinated Borrowing [Line Items]
Junior subordinated debt	$ 22,165
Interest Rate	3.98%
F.N.B. Statutory Trust II [Member] | LIBOR [Member]
Subordinated Borrowing [Line Items]
Basis spread on variable rate	1.65%
F.N.B. Statutory Trust II [Member] | Trust Preferred Securities [Member]
Subordinated Borrowing [Line Items]
Junior subordinated debt	$ 21,500
F.N.B. Statutory Trust II [Member] | Common Securities [Member]
Subordinated Borrowing [Line Items]
Junior subordinated debt	665
Omega Financial Capital Trust I [Member]
Subordinated Borrowing [Line Items]
Junior subordinated debt	$ 26,502
Interest Rate	4.55%
Omega Financial Capital Trust I [Member] | LIBOR [Member]
Subordinated Borrowing [Line Items]
Basis spread on variable rate	2.19%
Omega Financial Capital Trust I [Member] | Trust Preferred Securities [Member]
Subordinated Borrowing [Line Items]
Junior subordinated debt	$ 26,000
Omega Financial Capital Trust I [Member] | Common Securities [Member]
Subordinated Borrowing [Line Items]
Junior subordinated debt	1,114
Yadkin Valley Statutory Trust I [Member]
Subordinated Borrowing [Line Items]
Junior subordinated debt	$ 21,049
Interest Rate	3.65%
Yadkin Valley Statutory Trust I [Member] | LIBOR [Member]
Subordinated Borrowing [Line Items]
Basis spread on variable rate	1.32%
Yadkin Valley Statutory Trust I [Member] | Trust Preferred Securities [Member]
Subordinated Borrowing [Line Items]
Junior subordinated debt	$ 25,000
Yadkin Valley Statutory Trust I [Member] | Common Securities [Member]
Subordinated Borrowing [Line Items]
Junior subordinated debt	774
FNB Financial Services Capital Trust I [Member]
Subordinated Borrowing [Line Items]
Junior subordinated debt	$ 21,972
Interest Rate	3.80%
FNB Financial Services Capital Trust I [Member] | LIBOR [Member]
Subordinated Borrowing [Line Items]
Basis spread on variable rate	1.46%
FNB Financial Services Capital Trust I [Member] | Trust Preferred Securities [Member]
Subordinated Borrowing [Line Items]
Junior subordinated debt	$ 25,000
FNB Financial Services Capital Trust I [Member] | Common Securities [Member]
Subordinated Borrowing [Line Items]
Junior subordinated debt	774
American Community Capital Trust II [Member]
Subordinated Borrowing [Line Items]
Junior subordinated debt	$ 10,442
Interest Rate	5.13%
American Community Capital Trust II [Member] | LIBOR [Member]
Subordinated Borrowing [Line Items]
Basis spread on variable rate	2.80%
American Community Capital Trust II [Member] | Trust Preferred Securities [Member]
Subordinated Borrowing [Line Items]
Junior subordinated debt	$ 10,000
American Community Capital Trust II [Member] | Common Securities [Member]
Subordinated Borrowing [Line Items]
Junior subordinated debt	310
Crescent Financial Capital Trust I [Member]
Subordinated Borrowing [Line Items]
Junior subordinated debt	$ 8,577
Interest Rate	5.44%
Crescent Financial Capital Trust I [Member] | LIBOR [Member]
Subordinated Borrowing [Line Items]
Basis spread on variable rate	3.10%
Crescent Financial Capital Trust I [Member] | Trust Preferred Securities [Member]
Subordinated Borrowing [Line Items]
Junior subordinated debt	$ 8,000
Crescent Financial Capital Trust I [Member] | Common Securities [Member]
Subordinated Borrowing [Line Items]
Junior subordinated debt	$ 248

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DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Notional Amounts and Gross Fair Values (Detail) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Derivatives, Fair Value [Line Items]
Notional amount	$ 6,566,893	$ 5,628,119
Derivative asset, not offset against collateral	5,376	1,448
Derivative liability, not offset against collateral	10,907	13,581
Derivative asset, not subject to master netting arrangement	13,371	29,099
Derivative liability, not subject to master netting arrangement	64,134	15,616
Fair value, asset	18,747	30,547
Fair value, liability	75,041	29,197
Interest rate contracts - designated [Member]
Derivatives, Fair Value [Line Items]
Derivative asset, not offset against collateral	0	228
Derivative liability, not offset against collateral	4,760	1,982
Interest rate swaps - not designated [Member]
Derivatives, Fair Value [Line Items]
Derivative asset, not offset against collateral	5,353	1,169
Derivative liability, not offset against collateral	6,147	11,599
Derivative asset, not subject to master netting arrangement	12,214	27,233
Derivative liability, not subject to master netting arrangement	64,006	15,303
Equity contracts - not designated [Member]
Derivatives, Fair Value [Line Items]
Derivative asset, not offset against collateral	23	51
Derivative liability, not offset against collateral	0	0
Derivative asset, not subject to master netting arrangement	0	0
Derivative liability, not subject to master netting arrangement	23	51
Interest rate lock commitments – not designated [Member]
Derivatives, Fair Value [Line Items]
Derivative asset, not subject to master netting arrangement	772	1,594
Derivative liability, not subject to master netting arrangement	21	5
Forward delivery commitments – not designated [Member]
Derivatives, Fair Value [Line Items]
Derivative asset, not subject to master netting arrangement	362	233
Derivative liability, not subject to master netting arrangement	33	148
Credit risk contracts - not designated [Member]
Derivatives, Fair Value [Line Items]
Notional amount	121,700
Derivative asset, not subject to master netting arrangement	23	39
Derivative liability, not subject to master netting arrangement	51	109
Subject to Master Netting Arrangements [Member]
Derivatives, Fair Value [Line Items]
Notional amount	3,531,086	2,951,622
Subject to Master Netting Arrangements [Member] | Interest rate contracts - designated [Member]
Derivatives, Fair Value [Line Items]
Notional amount	855,000	705,000
Subject to Master Netting Arrangements [Member] | Interest rate swaps - not designated [Member]
Derivatives, Fair Value [Line Items]
Notional amount	2,674,906	2,245,442
Subject to Master Netting Arrangements [Member] | Equity contracts - not designated [Member]
Derivatives, Fair Value [Line Items]
Notional amount	1,180	1,180
Not Subject to Master Netting Arrangements [Member]
Derivatives, Fair Value [Line Items]
Notional amount	3,035,807	2,676,497
Not Subject to Master Netting Arrangements [Member] | Interest rate swaps - not designated [Member]
Derivatives, Fair Value [Line Items]
Notional amount	2,674,906	2,245,442
Not Subject to Master Netting Arrangements [Member] | Equity contracts - not designated [Member]
Derivatives, Fair Value [Line Items]
Notional amount	1,180	1,180
Not Subject to Master Netting Arrangements [Member] | Interest rate lock commitments – not designated [Member]
Derivatives, Fair Value [Line Items]
Notional amount	67,079	88,107
Not Subject to Master Netting Arrangements [Member] | Forward delivery commitments – not designated [Member]
Derivatives, Fair Value [Line Items]
Notional amount	90,861	106,572
Not Subject to Master Netting Arrangements [Member] | Credit risk contracts - not designated [Member]
Derivatives, Fair Value [Line Items]
Notional amount	$ 201,781	$ 235,196

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DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Key Data Related to Interest Rate (Detail) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount	$ 6,566,893	$ 5,628,119
Fair value included in other assets	18,747	30,547
Fair value included in other liabilities	75,041	29,197
Designated as Hedging Instrument [Member] | Interest rate contracts - designated [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount	855,000	705,000
Fair value included in other assets	0	228
Designated as Hedging Instrument [Member] | Trading Liabilities [Member] | Interest rate contracts - designated [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Fair value included in other liabilities	4,760	1,982
Not Designated as Hedging Instrument [Member] | Interest Rate Swap [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount	5,349,812	4,490,884
Fair value included in other assets	17,567	28,402
Not Designated as Hedging Instrument [Member] | Trading Liabilities [Member] | Interest Rate Swap [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Fair value included in other liabilities	$ 70,153	$ 26,902

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DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2018 USD ($) advance	Sep. 30, 2017 USD ($)	Dec. 31, 2017 USD ($)
Derivative [Line Items]
Federal home loan bank, number of advances | advance	7
Notional amount	$ 6,566,893,000		$ 5,628,119,000
Additional amount in excess of posted collateral required in case of breached agreements	$ 400,000		900,000
Interest rate contracts [Member]
Derivative [Line Items]
Maximum length of time hedged in interest rate cash flow hedge	5 years
Period to reclassification of cash flow hedge gain loss	12 months
Derivative gains to be reclassified within twelve months	$ 4,100,000
Derivative gains to be reclassified within twelve months, net of tax	3,200,000
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
Credit risk contracts - not designated [Member]
Derivative [Line Items]
Notional amount	121,700,000
Maximum exposure under credit risk agreement assuming customer default	100,000		100,000
Credit risk derivatives, purchased at fair value	0		40,000
Credit risk derivatives, sold at fair value	$ 50,000		$ 100,000
Credit risk contracts - not designated [Member] | Minimum [Member]
Derivative [Line Items]
Risk participation agreements, term	2 months
Credit risk contracts - not designated [Member] | Maximum [Member]
Derivative [Line Items]
Risk participation agreements, term	9 years

XML

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Amounts Reclassified from AOCI (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Reclassified from AOCI to interest expense	$ 63,028	$ 38,283	$ 164,612	$ 92,843
Reclassification out of Accumulated Other Comprehensive Income [Member] | Total [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Reclassified from AOCI to interest income			(130)
Reclassified from AOCI to interest expense			(1,693)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Net of Tax [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Reclassified from AOCI to interest income			(103)
Reclassified from AOCI to interest expense			$ (1,337)

XML

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Derivative Assets (Detail) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Derivative [Line Items]
Net Amount Presented in the Balance Sheet	$ 5,376	$ 1,448
Financial Instruments	5,302	1,448
Cash Collateral	0	0
Net Amount	74	0
Interest rate contracts - designated [Member]
Derivative [Line Items]
Net Amount Presented in the Balance Sheet	0	228
Financial Instruments	0	228
Cash Collateral	0	0
Net Amount	0	0
Interest rate swaps - not designated [Member]
Derivative [Line Items]
Net Amount Presented in the Balance Sheet	5,353	1,169
Financial Instruments	5,279	1,169
Cash Collateral	0	0
Net Amount	74	0
Equity contracts - not designated [Member]
Derivative [Line Items]
Net Amount Presented in the Balance Sheet	23	51
Financial Instruments	23	51
Cash Collateral	0	0
Net Amount	$ 0	$ 0

XML

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Derivative Liabilities (Detail) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Derivative [Line Items]
Net Amount Presented in the Balance Sheet	$ 10,907	$ 13,581
Financial Instruments	10,600	12,922
Cash Collateral	0	0
Net Amount	307	659
Interest rate contracts - designated [Member]
Derivative [Line Items]
Net Amount Presented in the Balance Sheet	4,760	1,982
Financial Instruments	4,760	1,982
Cash Collateral	0	0
Net Amount	0	0
Interest rate swaps - not designated [Member]
Derivative [Line Items]
Net Amount Presented in the Balance Sheet	6,147	11,599
Financial Instruments	5,840	10,940
Cash Collateral	0	0
Net Amount	307	659
Equity contracts - not designated [Member]
Derivative [Line Items]
Net Amount Presented in the Balance Sheet	$ 0	$ 0

XML

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Effect of Derivative Financial Instruments on Income Statement (Detail) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Interest Rate Contracts [Member] | Interest Income - Loans and Leases [Member]
Derivative [Line Items]
Derivative financial instrument, net	$ (130)	$ 1,185
Interest Rate Contracts [Member] | Interest Expense - Short-term Borrowings [Member]
Derivative [Line Items]
Derivative financial instrument, net	(1,693)	1,059
Interest Rate Swap [Member] | Other Income [Member]
Derivative [Line Items]
Derivative financial instrument, net	956	(592)
Credit risk contracts - not designated [Member] | Other Income [Member]
Derivative [Line Items]
Derivative financial instrument, net	$ 42	$ (1)

XML

COMMITMENTS, CREDIT RISK AND CONTINGENCIES - Off-Balance Sheet Credit Risk (Detail) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Standby Letters of Credit [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Extended credit and standby letters of credit	$ 130,191	$ 132,904
Commitments to Extend Credit [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Extended credit and standby letters of credit	$ 7,349,375	$ 6,957,822

XML

COMMITMENTS, CREDIT RISK AND CONTINGENCIES - Additional Information (Detail)	Sep. 30, 2018
Commitments and Contingencies Disclosure [Abstract]
Percentage of Commitments to extend credit dependent upon the financial condition of the customers	77.30%

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STOCK INCENTIVE PLANS - Additional Information (Detail) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units issued (in shares)	958,720	713,998
Common stock shares available under incentive compensation plans (in shares)	2,333,089
Unrecognized compensation expense	$ 16,284
Intrinsic value of outstanding and exercisable stock options	$ 2,400
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units issued (in shares)	958,720	713,998
Unrecognized compensation expense	$ 16,300
Amount subject to accelerated vesting under Incentive Compensation Plan	$ 1,000
Service-Based Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period of units issued, years	3 years
Unrecognized compensation expense	$ 10,770
Performance-Based Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period of units issued, years	3 years
Unrecognized compensation expense	$ 5,514
Performance-Based Units [Member] | Performance Based Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units issued (in shares)	283,037	251,379
Performance-Based Units [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock percentage of number of units issued	0.00%
Performance-Based Units [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock percentage of number of units issued	175.00%
Return On Average Tangible Assets (ROATA) [Member] | Performance-Based Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period of units issued, years	3 years
Return On Average Tangible Assets (ROATA) [Member] | Performance-Based Units [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock percentage of number of units issued	0.00%
Return On Average Tangible Assets (ROATA) [Member] | Performance-Based Units [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock percentage of number of units issued	175.00%
Total Shareholder Return (TSR) [Member] | Performance-Based Units [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock percentage of number of units issued	75.00%
Total Shareholder Return (TSR) [Member] | Performance-Based Units [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock percentage of number of units issued	125.00%

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STOCK INCENTIVE PLANS - Schedule of Issuance of Restricted Stock Units and Aggregate Weighted Average Grant Date Fair Values (Detail) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Restricted stock units issued (in shares)	958,720	713,998
Weighted average grant date fair values	$ 12,665	$ 10,474

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STOCK INCENTIVE PLANS - Restricted Stock Units Activity (Detail) - $ / shares	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Shares, granted	958,720	713,998
Shares, unvested units outstanding at end of period	2,528,370
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Shares, unvested units outstanding at beginning of period	1,975,862	1,836,363
Shares, granted	958,720	713,998
Shares, vested	(257,712)	(594,560)
Shares, forfeited/expired	(209,438)	(27,109)
Shares, dividend reinvestment	60,938	46,969
Shares, unvested units outstanding at end of period	2,528,370	1,975,661
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Weighted average grant price, invested units outstanding at beginning of period (in USD per share)	$ 13.64	$ 12.97
Weighted average grant price, granted (in USD per share)	13.21	14.67
Weighted average grant price, vested (in USD per share)	13.18	12.84
Weighted average grant price, forfeited/expired (in USD per share)	13.36	13.94
Weighted average grant price, dividend reinvestment (in USD per share)	13.72	13.79
Weighted average grant price, invested units outstanding at end of period (in USD per share)	$ 13.55	$ 13.63

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STOCK INCENTIVE PLANS - Schedule of Certain Information Related to Restricted Stock Units (Detail) - Restricted Stock [Member] - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 7,310	$ 6,088
Tax benefit related to stock-based compensation expense	1,535	2,131
Fair value of units vested	$ 3,472	$ 8,046

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STOCK INCENTIVE PLANS - Components of Restricted Stock Units (Detail) $ in Thousands	9 Months Ended
	Sep. 30, 2018 USD ($) shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested restricted stock units (in shares) | shares	2,528,370
Unrecognized compensation expense	$ 16,284
Intrinsic value	$ 32,161
Weighted average remaining life (in years)	1 year 8 months 14 days
Service-Based Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested restricted stock units (in shares) | shares	1,455,391
Unrecognized compensation expense	$ 10,770
Intrinsic value	$ 18,513
Weighted average remaining life (in years)	2 years 1 month 1 day
Performance-Based Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested restricted stock units (in shares) | shares	1,072,979
Unrecognized compensation expense	$ 5,514
Intrinsic value	$ 13,648
Weighted average remaining life (in years)	1 year 2 months 8 days

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STOCK INCENTIVE PLANS - Stock Options Units Activity (Detail) - $ / shares	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares [Roll Forward]
Shares, options outstanding at beginning of period	722,650	892,532
Shares, assumed from acquisitions	0	207,645
Shares, exercised	(214,781)	(163,455)
Shares, forfeited/expired	(4,834)	(56,687)
Shares, options outstanding and exercisable at end of period	503,035	880,035
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Weighted average exercise price, options outstanding at beginning of period (in USD per share)	$ 7.96	$ 8.95
Weighted average exercise price, assumed from acquisitions (in USD per share)	0.00	8.92
Weighted average exercise price, exercised (in USD per share)	7.91	9.41
Weighted average exercise price, forfeited/expired (in USD per share)	11.65	11.16
Weighted average exercise price, options outstanding and exercisable at end of period (in USD per share)	$ 7.97	$ 8.72

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RETIREMENT PLANS - Additional Information (Detail) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018 USD ($) Retirement_Plan	Jun. 30, 2018 USD ($)	Sep. 30, 2018 Retirement_Plan
Retirement Benefits [Abstract]
Percent of employer match			100.00%
Employee contribution percentage			6.00%
Employee contribution		$ 0.9
Additional discretionary contribution, annual financial goals, percentage			3.00%
Number of supplemental non qualified retirement plans | Retirement_Plan	2		2
Employer contribution, defined benefit plan	$ 4.0

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RETIREMENT PLANS - Contribution Expense (Detail) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Retirement Benefits [Abstract]
401(k) contribution expense	$ 11,210	$ 9,081

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RETIREMENT PLANS - Net Periodic Benefit Credit (Detail) - Defined Benefit Plans [Member] - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ (3)	$ (3)	$ (11)	$ (11)
Interest cost	1,549	1,463	4,669	4,417
Expected return on plan assets	(2,946)	(2,427)	(8,736)	(7,281)
Amortization:
Unrecognized prior service cost	1	2	1	6
Unrecognized loss	596	603	1,842	1,859
Net periodic pension credit	$ (803)	$ (362)	$ (2,235)	$ (1,010)

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INCOME TAXES (Details) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Income tax expense		$ 54.0
Income tax expense, adjustment	$ 1.9

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INCOME TAXES - Income Tax Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Income Tax Disclosure [Abstract]
Current, federal taxes	$ 7,683	$ 16,569	$ 31,132	$ 29,859
Current, state taxes	1,145	406	3,894	1,991
Total current income taxes	8,828	16,975	35,026	31,850
Deferred, federal taxes	12,952	14,088	28,110	38,238
Deferred, state taxes	374	2,115	757	(809)
Total deferred income taxes	13,326	16,203	28,867	37,429
Income taxes	$ 22,154	$ 33,178	$ 63,893	$ 69,279
Statutory tax rate	21.00%	35.00%	21.00%	35.00%
Effective tax rate	18.00%	29.90%	19.00%	28.40%

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OTHER COMPREHENSIVE INCOME (Detail) $ in Thousands	9 Months Ended
	Sep. 30, 2018 USD ($)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	$ 4,409,194
Balance at end of period	4,524,864
Unrealized Net Losses on Debt Securities Available for Sale [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	(29,626)
Other comprehensive (loss) income before reclassifications	(50,970)
Amounts reclassified from AOCI	(24)
Net current period other comprehensive (loss) income	(50,994)
Balance at end of period	(80,620)
Unrealized Net Gains (Losses) on Derivative Instruments [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	5,407
Other comprehensive (loss) income before reclassifications	6,991
Amounts reclassified from AOCI	(1,216)
Net current period other comprehensive (loss) income	5,775
Balance at end of period	11,182
Unrecognized Pension and Postretirement Obligations [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	(58,833)
Other comprehensive (loss) income before reclassifications	1,431
Amounts reclassified from AOCI	0
Net current period other comprehensive (loss) income	1,431
Balance at end of period	(57,402)
Accumulated Other Comprehensive Income (Loss) [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	(83,052)
Other comprehensive (loss) income before reclassifications	(42,548)
Amounts reclassified from AOCI	(1,240)
Net current period other comprehensive (loss) income	(43,788)
Balance at end of period	$ (126,840)

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EARNINGS PER COMMON SHARE - Computation of Earnings Per Common Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Earnings Per Share [Abstract]
Net income	$ 100,763	$ 77,693	$ 272,731	$ 175,078
Less: Preferred stock dividends	2,010	2,010	6,030	6,030
Net Income Available to Common Stockholders	$ 98,753	$ 75,683	$ 266,701	$ 169,048
Basic weighted average common shares outstanding	324,435,939	323,410,932	324,118,236	295,012,986
Net effect of dilutive stock options, warrants and restricted stock	1,217,192	1,493,836	1,556,470	1,639,810
Diluted weighted average common shares outstanding	325,653,131	324,904,768	325,674,706	296,652,796
Basic (in USD per share)	$ 0.30	$ 0.23	$ 0.82	$ 0.57
Diluted (in USD per share)	$ 0.30	$ 0.23	$ 0.82	$ 0.57

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EARNINGS PER COMMON SHARE - Average Shares Excluded from Earnings Per Common Share (Detail) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Earnings Per Share [Abstract]
Average shares excluded from the diluted earnings per common share calculation	86	1,842	59	1,059

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CASH FLOW INFORMATION (Detail) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Supplemental Cash Flow Elements [Abstract]
Interest paid on deposits and other borrowings	$ 157,933	$ 89,014
Income taxes paid	14,000	52,500
Transfers of loans to other real estate owned	9,562	24,025
Financing of other real estate owned sold	$ 0	$ 19

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BUSINESS SEGMENTS - Additional Information (Detail) - Segment	1 Months Ended	9 Months Ended
	Aug. 31, 2018	Sep. 30, 2018
Segment Reporting Information [Line Items]
Number of reportable segments		3
Mariner Finance, LLC [Member]
Segment Reporting Information [Line Items]
Stock purchase agreement, stock sold, percentage	100.00%

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BUSINESS SEGMENTS - Financial Information for Segments (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Segment Reporting Information [Line Items]
Interest income	$ 297,815	$ 263,514	$ 864,859	$ 709,241
Interest expense	63,028	38,283	164,612	92,843
Net Interest Income	234,787	225,231	700,247	616,398
Provision for credit losses	15,975	16,768	46,024	44,374
Non-interest income	74,834	66,151	207,226	187,345
Non-interest expense	166,924	158,938	512,991	502,296
Amortization of intangibles	3,805	4,805	11,834	12,716
Income tax expense (benefit)	22,154	33,178	63,893	69,279
Net income (loss)	100,763	77,693	272,731	175,078
Total assets	32,617,595	31,123,295	32,617,595	31,123,295	$ 31,417,635
Total intangibles	2,329,831	2,351,707	2,329,831	2,351,707
Operating Segments [Member] | Community Banking [Member]
Segment Reporting Information [Line Items]
Interest income	291,478	249,923	839,833	677,221
Interest expense	58,336	29,463	150,814	76,742
Net Interest Income	233,142	220,460	689,019	600,479
Provision for credit losses	13,692	14,847	39,381	38,649
Non-interest income	55,708	52,020	160,157	145,768
Non-interest expense	148,847	142,015	457,189	451,740
Amortization of intangibles	3,695	4,689	11,499	12,365
Income tax expense (benefit)	22,188	33,238	65,199	69,749
Net income (loss)	100,428	77,691	275,908	173,744
Total assets	32,526,809	30,889,485	32,526,809	30,889,485
Total intangibles	2,307,734	2,327,495	2,307,734	2,327,495
Operating Segments [Member] | Wealth Management [Member]
Segment Reporting Information [Line Items]
Interest income	6	0	6	0
Interest expense	0	0	0	0
Net Interest Income	6	0	6	0
Provision for credit losses	0	0	0	0
Non-interest income	11,129	10,006	33,370	29,376
Non-interest expense	8,300	7,451	25,272	22,978
Amortization of intangibles	61	64	182	190
Income tax expense (benefit)	599	904	1,769	2,266
Net income (loss)	2,175	1,587	6,153	3,942
Total assets	26,381	23,573	26,381	23,573
Total intangibles	10,006	10,224	10,006	10,224
Operating Segments [Member] | Insurance [Member]
Segment Reporting Information [Line Items]
Interest income	(16)	20	23	59
Interest expense	0	0	0	0
Net Interest Income	(16)	20	23	59
Provision for credit losses	0	0	0	0
Non-interest income	4,266	4,209	12,264	12,030
Non-interest expense	4,362	3,907	11,968	10,678
Amortization of intangibles	49	52	153	161
Income tax expense (benefit)	(26)	105	55	462
Net income (loss)	(135)	165	111	788
Total assets	19,323	21,242	19,323	21,242
Total intangibles	12,091	12,179	12,091	12,179
Operating Segments [Member] | Consumer Finance [Member]
Segment Reporting Information [Line Items]
Interest income	6,250	9,981	24,893	29,997
Interest expense	634	938	2,429	2,748
Net Interest Income	5,616	9,043	22,464	27,249
Provision for credit losses	1,337	1,921	5,697	5,725
Non-interest income	459	741	1,750	2,221
Non-interest expense	3,825	5,261	14,348	15,780
Amortization of intangibles	0	0	0	0
Income tax expense (benefit)	234	1,038	1,152	3,178
Net income (loss)	679	1,564	3,017	4,787
Total assets	0	185,209	0	185,209
Total intangibles	0	1,809	0	1,809
Parent and Other [Member]
Segment Reporting Information [Line Items]
Interest income	97	3,590	104	1,964
Interest expense	4,058	7,882	11,369	13,353
Net Interest Income	(3,961)	(4,292)	(11,265)	(11,389)
Provision for credit losses	946	0	946	0
Non-interest income	3,272	(825)	(315)	(2,050)
Non-interest expense	1,590	304	4,214	1,120
Amortization of intangibles	0	0	0	0
Income tax expense (benefit)	(841)	(2,107)	(4,282)	(6,376)
Net income (loss)	(2,384)	(3,314)	(12,458)	(8,183)
Total assets	45,082	3,786	45,082	3,786
Total intangibles	$ 0	$ 0	$ 0	$ 0

XML

FAIR VALUE MEASUREMENTS - Assets and Liabilities on Recurring Basis (Detail) - USD ($) $ in Thousands		Sep. 30, 2018	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities		$ 3,298,894
Assets measured at fair value, securities available for sale		3,298,894	$ 2,764,562
Loans held for sale	[1]	24,943	56,458
Derivative assets		18,747	30,547
Derivative liabilities		75,041	29,197
US Government Agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities		163,000
U.S. Government-Sponsored Entities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities		356,267	343,942
Agency Collateralized Mortgage Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities		1,046,481	794,957
Non-Agency Collateralized Mortgage Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities			1
Commercial Mortgage-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities		226,775
States of the U.S. and Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities		20,681	21,093
Other Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities		1,870	4,670
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value, securities available for sale		0	161
Derivative assets		0	0
Derivative liabilities		0	0
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value, securities available for sale		3,298,894	2,764,401
Derivative assets		17,975	28,953
Derivative liabilities		75,020	29,192
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value, securities available for sale		0	0
Derivative assets		772	1,594
Derivative liabilities		21	5
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities		3,298,894	2,763,537
Equity securities		188	1,025
Assets measured at fair value, securities available for sale			2,764,562
Loans held for sale		24,943	56,458
Derivative assets		18,747	30,547
Assets measured at fair value on a recurring basis, Total		3,342,772	2,851,567
Derivative liabilities		75,041	29,197
Liabilities measured at fair value on a recurring basis, Total		75,041	29,197
Fair Value, Measurements, Recurring [Member] | Trading Liabilities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities		70,176	26,953
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		4,865	2,244
Fair Value, Measurements, Recurring [Member] | Trading Assets [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		17,590	28,453
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		1,157	2,094
Fair Value, Measurements, Recurring [Member] | Fixed Income Mutual Fund [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities		0	161
Fair Value, Measurements, Recurring [Member] | Financial Services Industry [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities		188	864
Fair Value, Measurements, Recurring [Member] | US Government Agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities		163,000
Fair Value, Measurements, Recurring [Member] | U.S. Government-Sponsored Entities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities		356,267	343,942
Fair Value, Measurements, Recurring [Member] | Agency Mortgage-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities		1,483,820	1,598,874
Fair Value, Measurements, Recurring [Member] | Agency Collateralized Mortgage Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities		1,046,481	794,957
Fair Value, Measurements, Recurring [Member] | Non-Agency Collateralized Mortgage Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities		0	1
Fair Value, Measurements, Recurring [Member] | Commercial Mortgage-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities		226,775
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]
Debt securities		20,681	21,093
Fair Value, Measurements, Recurring [Member] | Other Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities		1,870	4,670
Fair Value, Measurements, Recurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities		0	0
Equity securities		0	161
Assets measured at fair value, securities available for sale			161
Loans held for sale		0	0
Derivative assets		0	0
Assets measured at fair value on a recurring basis, Total		0	161
Derivative liabilities		0	0
Liabilities measured at fair value on a recurring basis, Total		0	0
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Trading Liabilities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities		0	0
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Not for Trading Liabilities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities		0	0
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Trading Assets [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		0	0
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Not for Trading Assets [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		0	0
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Fixed Income Mutual Fund [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities		0	161
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]
Equity securities		0	0
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | US Government Agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities		0
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | U.S. Government-Sponsored Entities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities		0	0
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Agency Mortgage-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities		0	0
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Agency Collateralized Mortgage Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities		0	0
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Non-Agency Collateralized Mortgage Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities		0	0
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Commercial Mortgage-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities		0
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | States of the U.S. and Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities		0	0
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Other Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities		0	0
Fair Value, Measurements, Recurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities		3,298,894	2,763,537
Equity securities		188	864
Assets measured at fair value, securities available for sale			2,764,401
Loans held for sale		24,943	56,458
Derivative assets		17,975	28,953
Assets measured at fair value on a recurring basis, Total		3,342,000	2,849,812
Derivative liabilities		75,020	29,192
Liabilities measured at fair value on a recurring basis, Total		75,020	29,192
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		70,176	26,953
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		4,844	2,239
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		17,590	28,453
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		385	500
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Fixed Income Mutual Fund [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities		0	0
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]
Equity securities		188	864
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | US Government Agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities		163,000
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]
Debt securities		356,267	343,942
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]
Debt securities		1,483,820	1,598,874
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]
Debt securities		1,046,481	794,957
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]
Debt securities		0	1
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]
Debt securities		226,775
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]
Debt securities		20,681	21,093
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Other Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities		1,870	4,670
Fair Value, Measurements, Recurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities		0	0
Equity securities		0	0
Assets measured at fair value, securities available for sale			0
Loans held for sale		0	0
Derivative assets		772	1,594
Assets measured at fair value on a recurring basis, Total		772	1,594
Derivative liabilities		21	5
Liabilities measured at fair value on a recurring basis, Total		21	5
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Trading Liabilities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities		0	0
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Not for Trading Liabilities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities		21	5
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Trading Assets [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		0	0
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Not for Trading Assets [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		772	1,594
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Fixed Income Mutual Fund [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities		0	0
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]
Equity securities		0	0
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | US Government Agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities		0
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | U.S. Government-Sponsored Entities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities		0	0
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Agency Mortgage-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities		0	0
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Agency Collateralized Mortgage Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities		0	0
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]
Debt securities		0	0
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Commercial Mortgage-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities		0
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | States of the U.S. and Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities		0	0
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Other Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities		$ 0	$ 0

[1] Amount represents loans for which we have elected the fair value option. See Note 18.

XML

FAIR VALUE MEASUREMENTS - Rollforward on Recurring Basis (Detail) - Fair Value, Measurements, Recurring [Member] - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2018	Dec. 31, 2017
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of period	$ 1,594	$ 1,386
Total gains (losses) – realized/unrealized:
Included in earnings		4
Included in other comprehensive income		80
Accretion included in earnings		0
Purchases, issuances, sales and settlements:
Purchases	3,814	13,642
Sales/redemptions		(12,921)
Settlements	(4,636)	(4,588)
Transfers from Level 3		(578)
Transfers into Level 3		4,569
Balance at end of period	772	1,594
Other Debt Securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of period	0	0
Total gains (losses) – realized/unrealized:
Included in earnings		0
Included in other comprehensive income		0
Accretion included in earnings		(1)
Purchases, issuances, sales and settlements:
Purchases	0	12,048
Sales/redemptions		(12,047)
Settlements	0	0
Transfers from Level 3		0
Transfers into Level 3		0
Balance at end of period	0	0
Equity Securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of period	0	492
Total gains (losses) – realized/unrealized:
Included in earnings		0
Included in other comprehensive income		86
Accretion included in earnings		0
Purchases, issuances, sales and settlements:
Purchases	0	0
Sales/redemptions		0
Settlements	0	0
Transfers from Level 3		(578)
Transfers into Level 3		0
Balance at end of period	0	0
Residential Non-Agency Collateralized Mortgage Obligations [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of period	0	894
Total gains (losses) – realized/unrealized:
Included in earnings		4
Included in other comprehensive income		(6)
Accretion included in earnings		1
Purchases, issuances, sales and settlements:
Purchases	0	0
Sales/redemptions		(874)
Settlements	0	(19)
Transfers from Level 3		0
Transfers into Level 3		0
Balance at end of period	0	0
Interest Rate Lock Commitments [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of period	1,594	0
Total gains (losses) – realized/unrealized:
Included in earnings		0
Included in other comprehensive income		0
Accretion included in earnings		0
Purchases, issuances, sales and settlements:
Purchases	3,814	1,594
Sales/redemptions		0
Settlements	(4,636)	(4,569)
Transfers from Level 3		0
Transfers into Level 3		4,569
Balance at end of period	$ 772	$ 1,594

XML

FAIR VALUE MEASUREMENTS - Additional Information (Detail) - USD ($)	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017	Mar. 31, 2017
Fair Value Measurements Disclosure [Line Items]
Retained earnings	$ 516,865,000		$ 367,658,000
Allocated allowance for loan losses	4,800,000
Provision for fair value measurements included in allowance for loan losses	6,000,000
Carrying amount of OREO	8,400,000
Written down of OREO	5,600,000
Loss from OREO included in earnings	2,800,000
Fair Value, Measurements, Nonrecurring [Member]
Fair Value Measurements Disclosure [Line Items]
Impaired loans, carrying amount	6,300,000
Allocated allowance for loan losses	6,298,000		$ 4,110,000
Assets Still Held [Member]
Fair Value Measurements Disclosure [Line Items]
Included in earnings		$ 0
Other Debt Securities [Member] | Yadkin Financial Corporation (YDKN) [Member]
Fair Value Measurements Disclosure [Line Items]
Business acquisition				$ 12,000,000
Equity Securities [Member]
Fair Value Measurements Disclosure [Line Items]
Transfer of equity security to non-marketable equity securities, included in other assets	0
Fair value, net derivative asset (liability) measured on recurring basis, unobservable inputs reconciliation, transfers, net	600,000
Accounting Standards Update 2016-01 [Member]
Fair Value Measurements Disclosure [Line Items]
Retained earnings	$ 600,000

XML

FAIR VALUE MEASUREMENTS - Additional Information on Non-Recurring Basis (Detail) - USD ($) $ in Thousands		Sep. 30, 2018	Jun. 30, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans		$ 4,800
Loans held for sale	[1]	24,943		$ 56,458
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loan servicing rights, fair value		0		0
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loan servicing rights, fair value		0		0
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loan servicing rights, fair value		46,021		37,758
Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans		6,298		4,110
Other real estate owned		5,570		21,336
Fair Value, Measurements, Nonrecurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans		0		0
Other real estate owned		0		0
Fair Value, Measurements, Nonrecurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans		1,440		2,813
Other real estate owned		0		10,513
Fair Value, Measurements, Nonrecurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans		4,858		1,297
Other real estate owned		5,570		10,823
SBA-Guaranteed Loan Servicing [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loan servicing rights, fair value		4,305	$ 4,894	5,058	$ 5,283	$ 5,299	$ 0
SBA-Guaranteed Loan Servicing [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale				36,432
Loan servicing rights, fair value		4,305		5,058
SBA-Guaranteed Loan Servicing [Member] | Fair Value, Measurements, Nonrecurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale				0
Loan servicing rights, fair value		0		0
SBA-Guaranteed Loan Servicing [Member] | Fair Value, Measurements, Nonrecurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale				0
Loan servicing rights, fair value		0		0
SBA-Guaranteed Loan Servicing [Member] | Fair Value, Measurements, Nonrecurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale				36,432
Loan servicing rights, fair value		$ 4,305		$ 5,058

[1] Amount represents loans for which we have elected the fair value option. See Note 18.

XML

FAIR VALUE MEASUREMENTS - Financial Instruments (Detail) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017	Sep. 30, 2017	Dec. 31, 2016
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	$ 437,853	$ 479,443	$ 515,340	$ 371,407
Securities available for sale	3,298,894	2,764,562
Securities held to maturity	3,206,345	3,242,268
Securities held to maturity, fair value	3,032,947	3,218,379
Derivative assets	18,747	30,547
Deposits	23,499,986	22,399,725
Short-term borrowings	3,679,380	3,678,337
Long-term borrowings	627,049	668,173
Derivative liabilities	75,041	29,197
Carrying Amount [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	437,853	479,443
Securities available for sale	3,298,894	2,764,562
Securities held to maturity	3,206,345	3,242,268
Net loans and leases	21,703,605	20,916,277
Loan servicing rights	39,664	34,111
Marketable securities, equity securities	188
Derivative assets	18,747	30,547
Accrued interest receivable	102,513	94,254
Deposits	23,499,986	22,399,725
Short-term borrowings	3,679,380	3,678,337
Long-term borrowings	627,049	668,173
Derivative liabilities	75,041	29,197
Accrued interest payable	19,159	12,480
Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents, fair value	437,853	479,443
Securities available for sale	3,298,894	2,764,562
Securities held to maturity, fair value	3,032,947	3,218,379
Net loans and leases, fair value	21,270,133	20,661,196
Loan servicing rights, fair value	46,021	37,758
Marketable securities, equity securities, fair value	188
Derivative assets	18,747	30,547
Accrued interest receivable	102,513	94,254
Deposits, fair value	23,437,161	22,359,182
Short-term borrowings, fair value	3,679,933	3,678,723
Long-term borrowings, fair value	618,778	675,489
Derivative liabilities	75,041	29,197
Accrued interest payable	19,159	12,480
Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents, fair value	437,853	479,443
Securities available for sale	0	161
Securities held to maturity, fair value	0	0
Net loans and leases, fair value	0	0
Loan servicing rights, fair value	0	0
Marketable securities, equity securities, fair value	0
Derivative assets	0	0
Accrued interest receivable	102,513	94,254
Deposits, fair value	18,052,235	17,779,246
Short-term borrowings, fair value	3,679,933	3,678,723
Long-term borrowings, fair value	0	0
Derivative liabilities	0	0
Accrued interest payable	19,159	12,480
Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents, fair value	0	0
Securities available for sale	3,298,894	2,764,401
Securities held to maturity, fair value	3,032,947	3,218,379
Net loans and leases, fair value	24,943	56,458
Loan servicing rights, fair value	0	0
Marketable securities, equity securities, fair value	188
Derivative assets	17,975	28,953
Accrued interest receivable	0	0
Deposits, fair value	5,384,926	4,579,936
Short-term borrowings, fair value	0	0
Long-term borrowings, fair value	0	0
Derivative liabilities	75,020	29,192
Accrued interest payable	0	0
Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents, fair value	0	0
Securities available for sale	0	0
Securities held to maturity, fair value	0	0
Net loans and leases, fair value	21,245,190	20,604,738
Loan servicing rights, fair value	46,021	37,758
Marketable securities, equity securities, fair value	0
Derivative assets	772	1,594
Accrued interest receivable	0	0
Deposits, fair value	0	0
Short-term borrowings, fair value	0	0
Long-term borrowings, fair value	618,778	675,489
Derivative liabilities	21	5
Accrued interest payable	$ 0	$ 0