10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

FORM 10-Q

(Mark One)

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

For the quarterly period ended September 30, 2018

OR

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

For the transition period from _______________ to __________________.

Commission File No. 0-13660

Seacoast Banking Corporation of Florida

(Exact Name of Registrant as Specified in its Charter)

Florida	59-2260678
(State or Other Jurisdiction of Incorporation or Organization	(I.R.S. Employer Identification No.)

815 COLORADO AVENUE, STUART FL	34994
(Address of Principal Executive Offices)	(Zip Code)

(772) 287-4000

(Registrant’s Telephone Number, Including Area Code)

Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.

Yes ý 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 and post such files).

Yes ý No ¨

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

Large Accelerated	Accelerated	Non-Accelerated	Small Reporting
Filer x	Filer ¨	Filer ¨	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 ý

Common Stock, $0.10 Par Value – 47,269,692 shares as of September 30, 2018

INDEX

SEACOAST BANKING CORPORATION OF FLORIDA

		PAGE #
Part I	FINANCIAL INFORMATION
Item 1.	Financial Statements (Unaudited)
	Condensed consolidated balance sheets - September 30, 2018 and December 31, 2017	3
	Condensed consolidated statements of income – Three and nine months ended September 30, 2018 and 2017	4
	Condensed consolidated statements of comprehensive income – Three and nine months ended September 30, 2018 and 2017	5
	Consolidated statements of cash flows – Nine months ended September 30, 2018 and 2017	6
	Notes to condensed consolidated financial statements	8-25
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	32-57
Item 3.	Quantitative and Qualitative Disclosures about Market Risk	57
Item 4.	Controls and Procedures	58
Part II	OTHER INFORMATION
Item 1.	Legal Proceedings	58
Item 1A.	Risk Factors	58
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	58
Item 3.	Defaults upon Senior Securities	59
Item 4.	Mine Safety Disclosures	59
Item 5.	Other Information	59
Item 6.	Exhibits	62
SIGNATURES		62

2

Part I. FINANCIAL INFORMATION

Item 1. Financial Statements

CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited)

Seacoast Banking Corporation of Florida and Subsidiaries

(In thousands, except share data)	September 30, 2018			December 31, 2017
ASSETS
Cash and due from banks	$	101,920		$	104,039
Interest bearing deposits with other banks	3,174			5,465
Total cash and cash equivalents	105,094			109,504
Time deposits with other banks	9,813			12,553
Debt securities:
Available for sale (at fair value)	923,206			949,460
Held to maturity (fair value: $353,919 at September 30, 2018 and $414,470 at December 31, 2017)	367,387			416,863
Total debt securities	1,290,593			1,366,323
Loans held for sale (at fair value)	16,172			24,306
Loans	4,059,323			3,817,377
Less: Allowance for loan losses	(33,865		)	(27,122		)
Loans, net of allowance for loan losses	4,025,458			3,790,255
Bank premises and equipment, net	63,531			66,883
Other real estate owned	4,715			7,640
Goodwill	148,555			147,578
Other intangible assets, net	16,508			19,099
Bank owned life insurance	122,561			123,981
Net deferred tax assets	25,822			25,417
Other assets	102,112			116,590
TOTAL ASSETS	$	5,930,934		$	5,810,129
LIABILITIES
Deposits	$	4,643,510		$	4,592,720
Securities sold under agreements to repurchase	189,035			216,094
Federal Home Loan Bank (FHLB) borrowings	261,000			211,000
Subordinated debt	70,734			70,521
Other liabilities	33,824			30,130
TOTAL LIABILITIES	5,198,103			5,120,465
SHAREHOLDERS' EQUITY
Common stock, par value $0.10 per share, authorized 120,000,000 shares, issued 47,402,935 and outstanding 47,269,692 shares at September 30, 2018, and authorized 60,000,000, issued 47,032,259 and outstanding 46,917,735 shares at December 31, 2017	4,727			4,693
Other shareholders' equity	728,104			684,971
TOTAL SHAREHOLDERS' EQUITY	732,831			689,664
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$	5,930,934		$	5,810,129

See notes to condensed consolidated financial statements.

3

CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Unaudited)

Seacoast Banking Corporation of Florida and Subsidiaries

	Three Months Ended September 30,						Nine Months Ended September 30,
(In thousands, except share data)	2018			2017			2018			2017
Interest and fees on loans	$	48,713		$	40,403		$	140,489		$	110,503
Interest and dividends on securities	9,807			9,012			29,016			25,971
Interest on interest bearing deposits and other investments	634			664			1,835			1,778
TOTAL INTEREST INCOME	59,154			50,079			171,340			138,252
Interest on deposits	2,097			930			5,623			2,408
Interest on time certificates	2,975			1,266			7,783			2,646
Interest on borrowed money	2,520			2,134			6,403			5,128
TOTAL INTEREST EXPENSE	7,592			4,330			19,809			10,182
NET INTEREST INCOME	51,562			45,749			151,531			128,070
Provision for loan losses	5,774			680			9,388			3,385
NET INTEREST INCOME AFTER PROVISION FOR LOAN LOSSES	45,788			45,069			142,143			124,685
Noninterest income
Other income	12,339			11,481			37,506			31,853
Securities losses, net	(48		)	(47		)	(198		)	(26		)
TOTAL NONINTEREST INCOME (Note H)	12,291			11,434			37,308			31,827
TOTAL NONINTEREST EXPENSES (Note H)	37,399			34,361			112,809			110,732
INCOME BEFORE INCOME TAXES	20,680			22,142			66,642			45,780
Provision for income taxes	4,358			7,926			15,329			15,962
NET INCOME	$	16,322		$	14,216		$	51,313		$	29,818
SHARE DATA
Net income per share - diluted	0.34			0.32			1.07			0.70
Net income per share - basic	0.35			0.33			1.09			0.72
Cash dividends declared	—			—			—			—
Average shares outstanding - diluted	48,029,330			43,792,108			47,903,093			42,298,136
Average shares outstanding - basic	47,205,383			43,151,248			47,108,302			41,626,356

See notes to condensed consolidated financial statements.

4

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited)

Seacoast Banking Corporation of Florida and Subsidiaries

	Three Months Ended September 30,						Nine Months Ended September 30,
(In thousands)	2018			2017			2018			2017
NET INCOME	$	16,322		$	14,216		$	51,313		$	29,818
Other comprehensive income (loss):
Unrealized (losses) gains on securities available for sale	(3,548		)	1,149			(20,564		)	9,920
Amortization of unrealized losses on securities transferred to held to maturity, net	108			122			442			365
Reclassification adjustment for gains included in net income	—			47			—			26
Income tax effect on other comprehensive (loss) income	919			(503		)	5,358			(3,964		)
Total other comprehensive (loss) income	(2,521		)	815			(14,764		)	6,347
COMPREHENSIVE INCOME	$	13,801		$	15,031		$	36,549		$	36,165

See notes to condensed consolidated financial statements.

5

CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)

Seacoast Banking Corporation of Florida and Subsidiaries

	Nine Months Ended September 30,
(In thousands)	2018			2017
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$	51,313		$	29,818
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	4,691			3,961
Amortization of premiums and discounts on securities, net	2,567			2,864
Other amortization and accretion, net	185			(346		)
Stock based compensation	5,603			3,787
Origination of loans designated for sale	(225,929		)	(164,878		)
Sale of loans designated for sale	239,316			161,587
Provision for loan losses	9,388			3,385
Deferred income taxes	5,675			15,077
Losses on sale of securities	—			26
Gains on sale of loans	(7,752		)	(5,160		)
Gains on sale and write-downs of other real estate owned	(12		)	(657		)
Losses on disposition of fixed assets	216			1,973
Changes in operating assets and liabilities, net of effects from acquired companies:
Net decrease (increase) in other assets	17,281			(419		)
Net increase (decrease) in other liabilities	3,644			(2,575		)
Net cash provided by operating activities	106,186			48,443
CASH FLOWS FROM INVESTING ACTIVITIES
Maturities and repayments of debt securities available for sale	107,728			176,978
Maturities and repayments of debt securities held to maturity	48,945			64,984
Proceeds from sale of debt securities available for sale	—			7,525
Purchases of debt securities available for sale	(104,650		)	(223,805		)
Purchases of debt securities held to maturity	—			(67,563		)
Maturities of time deposits with other banks	2,740			2,682
Net new loans and principal repayments	(225,570		)	(277,142		)
Purchase of loans held for investment	(19,541		)	(55,352		)
Proceeds from the sale of portfolio loans	—			74,211
Proceeds from the sale of other real estate owned	9,260			5,123
Proceeds from sale of FHLB and Federal Reserve Bank Stock	28,751			29,984
Purchase of FHLB and Federal Reserve Bank Stock	(33,681		)	(32,398		)
Purchase of VISA Class B stock	—			(6,180		)
Redemption of bank owned life insurance	4,232			—
Purchase of bank owned life insurance	—			(30,000		)
Net cash from bank acquisition	—			30,225
Additions to bank premises and equipment	(3,557		)	(4,247		)
Net cash used in investing activities	(185,343		)	(304,975		)

See notes to condensed consolidated financial statements.

6

CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)

Seacoast Banking Corporation of Florida and Subsidiaries

	Nine Months Ended September 30,
(In thousands)	2018			2017
CASH FLOWS FROM FINANCING ACTIVITIES
Net increase in deposits	$	50,790		$	304,005
Net decrease in federal funds purchased and repurchase agreements	(27,059		)	(62,049		)
Net increase (decrease) in FHLB borrowings	50,000			(26,000		)
Issuance of common stock, net of related expense	—			55,641
Stock based employee benefit plans	1,016			569
Dividends paid	—			—
Net cash provided by financing activities	74,747			272,166
Net increase (decrease) in cash and cash equivalents	(4,410		)	15,634
Cash and cash equivalents at beginning of period	109,504			109,644
Cash and cash equivalents at end of period	$	105,094		$	125,278
Supplemental disclosure of non cash investing activities:
Transfers from loans to other real estate owned	4,271			448
Transfers from bank premises to other real estate owned	2,052			1,212
Transfers from loans held for investment to loans held for sale	—			5,664

See notes to condensed consolidated financial statements.

7

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

Seacoast Banking Corporation of Florida and Subsidiaries

Note A – Basis of Presentation

Basis of Presentation

The accompanying unaudited condensed consolidated financial statements of Seacoast Banking Corporation of Florida and its subsidiaries (the "Company") have been prepared in accordance with U.S. generally accepted accounting principles for interim financial information and with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by U.S. generally accepted accounting principles for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. Certain prior period amounts have been reclassified to conform to the current period presentation.

Operating results for the nine months ended September 30, 2018 are not necessarily indicative of the results that may be expected for the year ending December 31, 2018 or any other period. For further information, refer to the consolidated financial statements and footnotes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017. Certain prior period amounts have been reclassified to conform to the current period presentation.

Adoption of new accounting pronouncements

On January 1, 2018, we adopted Financial Accounting Standards Board (“FASB”) Accounting Standards Update (“ASU”) 2014-9, “Revenue from Contracts with Customers,” and all the related amendments (collectively, “ASC 606”) using the modified retrospective approach applied to all contracts in place at that date. Adoption had no material impact on the Company’s consolidated financial statements including no change to the amount or timing of revenue recognized for contracts within the scope of the new standard. Activity in the scope of the new standard includes:

• Service Charges on Deposits: Seacoast National Bank ("Seacoast Bank") offers a variety of deposit-related services to its customers through several delivery channels including branch offices, ATMs, telephone, mobile, and internet banking. Transaction-based fees are recognized when services, each of which represents a performance obligation, are satisfied. Service fees may be assessed monthly, quarterly, or annually; however, the account agreements to which these fees relate can be cancelled at any time by Seacoast and/or the customer. Therefore, the contract term is considered a single day (a day-to-day contract).

• Trust Fees: The Company earns trust fees from fiduciary services provided to trust customers which include custody of assets, recordkeeping, collection and distribution of funds. Fees are earned over time and accrued monthly as the Company provides services, and are generally assessed based on the market value of the trust assets under management at a particular date or over a particular period.

• Brokerage Commissions and Fees: The Company earns commissions and fees from investment brokerage services provided to its customers through an arrangement with a third-party service provider. Commissions received from the third-party service provider are recorded monthly and are based upon customer activity. Fees are earned over time and accrued monthly as services are provided. The Company acts as an agent in this arrangement and therefore presents the brokerage commissions and fees net of related costs.

• Interchange Income: Fees earned on card transactions depend upon the volume of activity, as well as the fees permitted by the payment network. Such fees are recognized by the Company upon fulfilling its performance obligation to approve the card transaction.

On January 1, 2018, we adopted ASU 2016-1, “Financial Instruments – Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities.” Upon adoption, we reclassified $0.1 million of accumulated unrealized loss pertaining to an equity investment previously classified as available for sale from Accumulated Other Comprehensive Income to Retained Earnings.

Use of Estimates The preparation of these condensed consolidated financial statements required the use of certain estimates by management in determining the Company’s assets, liabilities, revenues and expenses. Specific areas, among others, requiring the application of management’s estimates include determination of the allowance for loan losses, the valuation of investment securities available for sale, fair value of impaired loans, contingent liabilities, fair value of other real estate owned, and the valuation of deferred tax assets. Actual results could differ from those estimates.

8

Note B – Recently Issued Accounting Standards, Not Yet Adopted

The following provides a brief description of accounting standards that have been issued but are not yet adopted that could have a material effect on the Company's financial statements:

ASU 2016-02, Leases (Topic 842)
Description	In February 2016, the FASB amended existing guidance that requires lessees recognize the following for all leases at the commencement date: 1. A lease liability, which is a lessee’s obligation to make lease payments arising from a lease, measured on a discounted basis. 2. A right-of-use specified asset, which is an asset that represents the lessee’s right to use, or control the use of, a specified asset for the lease term. Under the new guidance, lessor accounting is largely unchanged. Certain targeted improvements were made to align lessor accounting with the lessee accounting model and Topic 606, Revenue from Contracts with Customers. In July 2018, the FASB issued ASU 2018-11, which provides an additional optional transition method. The additional transition method allows entities to initially apply the new lease standard at the adoption date by recognizing a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. Consequently, an entity’s reporting for the comparative periods presented in the financial statements in which the entity adopts the new lease standard would continue to be in accordance with current GAAP (Topic 840), including disclosures.
Date of Adoption	This amendment is effective for public business entities for reporting periods beginning after December 15, 2018, including interim periods within that reporting period. Early adoption is permitted.
Effect on the Consolidated Financial Statements	The Company is in the process of evaluating its existing leases, which are primarily operating leases of branch properties and equipment, to determine the amounts to be recognized as right-of-use assets and lease liabilities.  The Company will adopt the new standard effective January 1, 2019. The effect of adoption on the Company’s consolidated statements of income is not expected to be material.

ASU 2016-13, Financial Instruments –Credit Losses (Topic 326)
Description	In June 2016, the FASB issued guidance to replace the incurred loss model with an expected loss model, which is referred to as the current expected credit loss (CECL) model. The CECL model is applicable to the measurement of credit losses on financial assets measured at amortized cost, including loan receivables and held to maturity debt securities. It also applies to off-balance sheet credit exposures including loan commitments, standby letters of credit, financial guarantees and other similar instruments.
Date of Adoption	This amendment is effective for public business entities for reporting periods beginning after December 15, 2019, including interim periods within that reporting period. Early adoption is permitted only as of annual reporting periods after December 15, 2018, including interim reporting periods within that period.
Effect on the Consolidated Financial Statements	The Company’s transition oversight committee is in the process of evaluating and implementing changes to credit loss estimation models and related processes. Updates to business processes and the documentation of accounting policy decisions are ongoing. The Company may recognize an increase in the allowance for loan losses upon adoption, recorded as a one-time effect cumulative adjustment to retained earnings. However, the magnitude of the impact on the Company's consolidated financial statements has not yet been determined. The Company will adopt this accounting standard effective January 1, 2020.

9

ASU 2017-04, Intangibles – Goodwill and Other (Topic 350): Simplifying the Test for Goodwill
Description	In January 2017, the FASB amended the existing guidance to simplify the goodwill impairment measurement test by eliminating Step 2. The amendment requires the Company to perform the goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount and recognizing an impairment charge for the amount by which the carrying amount exceeds the fair value. Additionally, an entity should consider the tax effects from any tax deductible goodwill on the carrying amount when measuring the impairment loss.
Date of Adoption	This amendment is effective for public business entities for reporting periods beginning after December 15, 2019, including interim periods within that reporting period. Early adoption is permitted on annual goodwill impairment tests performed after January 1, 2017.
Effect on the Consolidated Financial Statements	The impact to the Company's consolidated financial statements from the adoption of this pronouncement is not expected to be material.

ASU 2017-08, Receivables-Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased callable Debt Securities
Description	In March 2017, the FASB issued guidance which requires entities to amortize premiums on certain purchased callable debt securities to their earliest call date. The accounting for purchased callable debt securities held at a discount did not change. Amortizing the premium to the earliest call date generally aligns interest income recognition with the economics of instruments. This guidance requires a modified retrospective approach under which a cumulative adjustment will be made to retained earnings as of the beginning of the period in which it is adopted.
Date of Adoption	The amendments are effective for public business entities for annual periods beginning after December 15, 2018, including interim periods within those periods.
Effect on the Consolidated Financial Statements	The impact to the Company's consolidated financial statements from the adoption of this pronouncement is not expected to be material.

ASU 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities
Description	In August 2017, the FASB provided guidance to improve the financial reporting of hedging relationships to better portray the economic results of an entity’s risk management activities in its financial statements. The amendments also simplify the application of the hedge accounting guidance.
Date of Adoption	The amendments are effective for public business entities for annual periods beginning after December 15, 2018, including interim periods within those periods.
Effect on the Consolidated Financial Statements	The impact to the Company's consolidated financial statements from the adoption of this pronouncement is not expected to be material.

ASU 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement
Description	On August 28, 2018, the FASB issued ASU 2018-13, which changes the disclosure requirements on fair value measurements in Topic 820. The amendments in this ASU are the result of a broader disclosure project called FASB Concepts Statement, Conceptual Framework for Financial Reporting - Chapter 8: Notes to Financial Statements. The ASU modifies or removes certain existing disclosures, and adds certain new disclosures.
Date of Adoption	The amendments are effective for public business entities for annual periods beginning after December 15, 2019, including interim periods within those periods. Early adoption is permitted for any eliminated or modified disclosure upon issuance of the ASU.
Effect on the Consolidated Financial Statements	The impact to the Company's consolidated financial statements from the adoption of this pronouncement is not expected to be material.

Note C – Earnings per Share

For the three and nine months ended September 30, 2018, options to purchase 481,000 and 412,000 shares, respectively, were antidilutive and not included in the computation of diluted earnings per share, compared to 274,000 and 191,000, respectively, for the three and nine months ended September 30, 2017. The dilutive impact of restricted stock and stock options is calculated under the treasury method.

10

	Three Months Ended September 30,				Nine Months Ended September 30,
(Dollars in thousands, except per share data)	2018		2017		2018		2017
Basic earnings per share
Net income	$	16,322	$	14,216	$	51,313	$	29,818
Average common stock outstanding	47,205,383		43,151,248		47,108,302		41,626,356
Net income per share	$	0.35	$	0.33	$	1.09	$	0.72
Diluted earnings per share
Net income	$	16,322	$	14,216	$	51,313	$	29,818
Average common stock outstanding	47,205,383		43,151,248		47,108,302		41,626,356
Add: Dilutive effect of employee restricted stock and stock options	823,947		640,860		794,791		671,780
Average diluted stock outstanding	48,029,330		43,792,108		47,903,093		42,298,136
Net income per share	$	0.34	$	0.32	$	1.07	$	0.70

On February 21, 2017, the Company completed a public offering of 2,702,500 shares of common stock, generating net proceeds to the Company of $55.7 million. In addition, CapGen Capital Group III LP (“CapGen”), in conjunction with the Company’s offering, sold 6,210,000 shares of the Company’s common stock, with no net proceeds to the Company.

Note D – Securities

The amortized cost, gross unrealized gains and losses and fair value of securities available for sale and held to maturity at September 30, 2018 and December 31, 2017⁽¹⁾ are summarized as follows:

	September 30, 2018
(In thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Debt securities available for sale
U.S. Treasury securities and obligations of U.S. Government Entities	$	7,486	$	114	$	(57	)	$	7,543
Mortgage-backed securities and collateralized mortgage obligations of U.S. Government Sponsored Entities	597,689		153		(24,660		)	573,182
Private mortgage-backed securities and collateralized mortgage obligations	75,485		925		(318		)	76,092
Collateralized loan obligations	223,419		137		(566		)	222,990
Obligations of state and political subdivisions	43,951		261		(813		)	43,399
Totals	$	948,030	$	1,590	$	(26,414	)	$	923,206
Debt securities held to maturity
Mortgage-backed securities and collateralized mortgage obligations of U.S. Government Sponsored Entities	$	313,667	$	—	$	(13,557	)	$	300,110
Private mortgage-backed securities and collateralized mortgage obligations	21,720		181		(131		)	21,770
Collateralized loan obligations	32,000		58		(19		)	32,039
Totals	$	367,387	$	239	$	(13,707	)	$	353,919

11

	December 31, 2017
(In thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Debt securities available for sale
U.S. Treasury securities and obligations of U.S. Government Entities	$	9,475	$	274	$	(5	)	$	9,744
Mortgage-backed securities and collateralized mortgage obligations of U.S. Government Sponsored Entities	560,396		1,163		(8,034		)	553,525
Private mortgage-backed securities and collateralized mortgage obligations	75,152		1,154		(285		)	76,021
Collateralized loan obligations	263,579		798		(68		)	264,309
Obligations of state and political subdivisions	45,118		813		(70		)	45,861
Totals	$	953,720	$	4,202	$	(8,462	)	$	949,460
Debt securities held to maturity
Mortgage-backed securities and collateralized mortgage obligations of U.S. Government Sponsored Entities	$	353,541	$	802	$	(4,159	)	$	350,184
Private mortgage-backed securities and collateralized mortgage obligations	22,799		714		(53		)	23,460
Collateralized loan obligations	40,523		303		—			40,826
Totals	$	416,863	$	1,819	$	(4,212	)	$	414,470

(1) December 31, 2017 balances in the tables above reflect certain reclassifications between categories.  

There were no sales of securities during the three and nine month periods endedSeptember 30, 2018. Proceeds from sales of securities during the three month period ended September 30, 2017 were $3.7 million, with gross gains of $15,000 and gross losses of $62,000. Proceeds from sales of securities during the nine month period endedSeptember 30, 2017 were $7.5 million with gross gains of $36,000 and gross losses of $62,000. Included in “Securities (losses)/gains, net” for the three and nine month periods endedSeptember 30, 2018, is $0.1 million and $0.2 million,respectively, representing the decline in the value of an investment in shares of a mutual fund that invests primarily in CRA-qualified debt securities.

At September 30, 2018, debt securities with a fair value of $162.4 million were pledged as collateral for United States Treasury deposits, other public deposits and trust deposits. Debt securities with a fair value of $189.0 million were pledged as collateral for repurchase agreements.

The amortized cost and fair value of debt securities available for sale and held to maturity at September 30, 2018, by contractual maturity, are shown below. Expected maturities will differ from contractual maturities because prepayments of the underlying collateral for these securities may occur, due to the right to call or repay obligations with or without call or prepayment penalties. Securities not due at a single maturity date are shown separately.

	Held to Maturity				Available for Sale
(In thousands)	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Due in less than one year	$	—	$	—	$	13,832	$	13,781
Due after one year through five years	—		—		79,637		79,582
Due after five years through ten years	32,000		32,039		177,911		177,196
Due after ten years	—		—		3,476		3,373
	32,000		32,039		274,856		273,932
Mortgage-backed securities and collateralized mortgage obligations of U.S. Government Sponsored Entities	313,667		300,110		597,689		573,182
Private mortgage-backed securities and collateralized mortgage obligations	21,720		21,770		75,485		76,092
Totals	$	367,387	$	353,919	$	948,030	$	923,206

12

The estimated fair value of a security is determined based on market quotations when available or, if not available, by using quoted market prices for similar securities, pricing models or discounted cash flows analyses, using observable market data where available. The tables below indicate the fair value of debt securities with unrealized losses and the period of time for which these losses were outstanding at September 30, 2018 and December 31, 2017, respectively.

	September 30, 2018
	Less than 12 months					12 months or longer					Total
(In thousands)	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
U.S. Treasury securities and obligations of U.S. Government Entities	$	7,543	$	(57	)	$	—	$	—		$	7,543	$	(57	)
Mortgage-backed securities and collateralized mortgage obligations of U.S. Government Sponsored Entities	456,356		(15,703		)	416,936		(22,514		)	873,292		(38,217		)
Private mortgage-backed securities and collateralized mortgage obligations	84,026		(251		)	13,836		(197		)	97,862		(448		)
Collateralized loan obligations	255,030		(585		)	—		—			255,030		(585		)
Obligations of state and political subdivisions	40,136		(672		)	3,262		(142		)	43,398		(814		)
Totals	$	843,091	$	(17,268	)	$	434,034	$	(22,853	)	$	1,277,125	$	(40,121	)

	December 31, 2017
	Less than 12 months					12 months or longer					Total
(In thousands)	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
U.S. Treasury securities and obligations of U.S. Government Entities	$	1,107	$	(5	)	$	—	$	—		$	1,107	$	(5	)
Mortgage-backed securities and collateralized mortgage obligations of U.S. Government Sponsored Entities	304,723		(2,047		)	413,725		(10,146		)	718,448		(12,193		)
Private mortgage-backed securities and collateralized mortgage obligations	—		—			20,744		(338		)	20,744		(338		)
Collateralized loan obligations	14,933		(68		)	—		—			14,933		(68		)
Obligations of state and political subdivisions	5,414		(14		)	5,864		(56		)	11,278		(70		)
Totals	$	326,177	$	(2,134	)	$	440,333	$	(10,540	)	$	766,510	$	(12,674	)

The two tables above include debt securities held to maturity that were transferred from available for sale into held to maturity during 2014. Those securities had unrealized losses of $3.1 million at the date of transfer, and at September 30, 2018, the unamortized balance was $0.8 million. The fair value of those securities in an unrealized loss position for less than twelve months at September 30, 2018 and December 31, 2017 was $53.6 million and $22.9 million, respectively, with unrealized losses of $1.5 million and $0.2 million, respectively. The fair value of those securities in an unrealized loss position for 12 months or more at September 30, 2018 and December 31, 2017 was $14.7 million and $15.3 million, respectively, with unrealized losses of $0.9 million and $0.4 million, respectively.

At September 30, 2018, the Company had $38.2 million of unrealized losses on mortgage-backed securities and collateralized mortgage obligations of government sponsored entities having a fair value of $873.3 million that were attributable to a combination of factors, including relative changes in interest rates since the time of purchase. The contractual cash flows for these debt securities are guaranteed by U.S. government-sponsored entities. Based on our assessment of these mitigating factors, management believes that the unrealized losses on these holdings are a function of changes in investment spreads and interest movements and not changes in credit quality. Management expects to recover the entire amortized cost basis of these securities.

At September 30, 2018, $0.4 million of the unrealized losses pertained to private label debt securities secured by seasoned collateral with a fair value of $97.9 million. Management attributes the loss to a combination of factors, including relative changes in interest rates since the time of purchase. The collateral underlying these mortgage investments are 30- and 15-year fixed and adjustable rate mortgage loans with low loan to values, improving subordination, and historically have had minimal foreclosures and losses.

13

Based on its assessment of these factors, management believes that the unrealized losses on these holdings are a function of changes in investment spreads and interest rate movements and not changes in credit quality. Management expects to recover the entire amortized cost basis of these securities.

At September 30, 2018, the Company had unrealized losses of $0.6 million on collateralized loan obligations with a fair value of $255.0 million. Management expects to recover the entire amortized cost basis of these securities.

At September 30, 2018, the Company had unrealized losses of $0.8 million on obligations of state and political subdivisions with a fair value of $43.4 million. Management expects to recover the entire amortized cost basis of these securities.

As of September 30, 2018, the Company does not intend to sell debt securities that are in an unrealized loss position and it is not more likely than not that the Company will be required to sell these securities before recovery of the amortized cost basis. Therefore, management does not consider any investment to be other-than-temporarily impaired at September 30, 2018.

Included in other assets is Federal Home Loan Bank and Federal Reserve Bank stock which has a par value as of September 30, 2018 and December 31, 2017 of $37.5 million and $32.5 million, respectively. At September 30, 2018, the Company had not identified events or changes in circumstances which may have a significant adverse effect on the fair value of these investments. Also included in other assets is a $6.1 million investment in a mutual fund carried at fair value.

The Company holds 11,330 shares of Visa Class B stock which, following resolution of pending litigation, will be converted to Visa Class A shares. Under the current conversion ratio that became effective June 28, 2018, the Company expects to receive 1.6298 shares of Class A stock for each share of Class B stock, for a total of 18,465 shares of Visa Class A stock. Our ownership of these shares is related to prior ownership in Visa’s network while Visa operated as a cooperative. The shares are recorded on our financial records at zero basis.

Note E – Loans

Information pertaining to portfolio loans, purchased credit impaired (“PCI”) loans, and purchased unimpaired loans (“PUL”) is as follows:

	September 30, 2018
(In thousands)	Portfolio Loans		PCI Loans		PULs		Total
Construction and land development	$	289,449	$	129	$	86,679	$	376,257
Commercial real estate	1,357,721		10,838		358,140		1,726,699
Residential real estate	994,575		1,356		156,709		1,152,640
Commercial and financial	554,627		728		55,600		610,955
Consumer	187,199		—		5,573		192,772
Totals (1)	$	3,383,571	$	13,051	$	662,701	$	4,059,323

	December 31, 2017
(In thousands)	Portfolio Loans		PCI Loans		PULs		Total
Construction and land development	$	215,315	$	1,121	$	126,689	$	343,125
Commercial real estate	1,170,618		9,776		459,598		1,639,992
Residential real estate	845,420		5,626		187,764		1,038,810
Commercial and financial	512,430		894		92,690		606,014
Consumer	178,826		—		10,610		189,436
Totals (1)	$	2,922,609	$	17,417	$	877,351	$	3,817,377

(1) Net loan balances as of September 30, 2018 and December 31, 2017 include deferred costs of $15.9 million and $12.9 million for each period, respectively.

14

The following tables present the contractual delinquency of the recorded investment by class of loans as of:

	September 30, 2018
(In thousands)	Current		Accruing 30-59 Days Past Due		Accruing 60-89 Days Past Due		Accruing Greater Than 90 Days		Nonaccrual		Total Financing Receivables
Portfolio Loans
Construction and land development	$	289,234	$	—	$	—	$	—	$	215	$	289,449
Commercial real estate	1,345,174		3,173		—		—		9,374		1,357,721
Residential real estate	984,874		1,202		104		—		8,395		994,575
Commercial and financial	548,861		2,050		2,521		359		836		554,627
Consumer	185,902		1,119		—		—		178		187,199
Totals	3,354,045		7,544		2,625		359		18,998		3,383,571
Purchased Unimpaired Loans
Construction and land development	86,679		—		—		—		—		86,679
Commercial real estate	355,541		1,181		—		696		722		358,140
Residential real estate	151,125		1,705		124		—		3,755		156,709
Commercial and financial	50,427		4,011		733		—		429		55,600
Consumer	5,568		5		—		—		—		5,573
Totals	649,340		6,902		857		696		4,906		662,701
Purchased Credit Impaired Loans
Construction and land development	129		—		—		—		—		129
Commercial real estate	9,427		—		—		—		1,411		10,838
Residential real estate	552		—		—		—		804		1,356
Commercial and financial	707		—		—		—		21		728
Consumer	—		—		—		—		—		—
Totals	10,815		—		—		—		2,236		13,051
Totals	$	4,014,200	$	14,446	$	3,482	$	1,055	$	26,140	$	4,059,323

15

	December 31, 2017
(In thousands)	Current		Accruing 30-59 Days Past Due		Accruing 60-89 Days Past Due		Accruing Greater Than 90 Days		Nonaccrual		Total Financing Receivables
Portfolio Loans
Construction and land development	$	215,077	$	—	$	—	$	—	$	238	$	215,315
Commercial real estate	1,165,738		2,605		585		—		1,690		1,170,618
Residential real estate	836,117		812		75		—		8,416		845,420
Commercial and financial	507,501		2,776		26		—		2,127		512,430
Consumer	178,676		52		—		—		98		178,826
Totals	2,903,109		6,245		686		—		12,569		2,922,609
Purchased Unimpaired Loans
Construction and land development	126,655		34		—		—		—		126,689
Commercial real estate	457,899		979		—		—		720		459,598
Residential real estate	186,549		128		87		—		1,000		187,764
Commercial and financial	92,315		54		—		—		321		92,690
Consumer	10,610		—		—		—		—		10,610
Totals	874,028		1,195		87		—		2,041		877,351
Purchased Credit Impaired Loans
Construction and land development	1,121		—		—		—		—		1,121
Commercial real estate	9,352		—		—		—		424		9,776
Residential real estate	544		642		—		—		4,440		5,626
Commercial and financial	844		—		—		—		50		894
Consumer	—		—		—		—		—		—
Totals	11,861		642		—		—		4,914		17,417
Totals	$	3,788,998	$	8,082	$	773	$	—	$	19,524	$	3,817,377

The Company utilizes an internal asset classification system as a means of reporting problem and potential problem loans. Under the Company’s risk rating system, the Company classifies problem and potential problem loans as “Special Mention,” “Substandard,” and “Doubtful” and these loans are monitored on an ongoing basis. Loans that do not currently expose the Company to sufficient risk to warrant classification in the Substandard or Doubtful categories, but possess weaknesses that deserve management’s close attention are deemed to be Special Mention. Substandard loans include those characterized by the distinct possibility that the Company will sustain some loss if the deficiencies are not corrected. Loans classified as Substandard may require a specific allowance. Loans classified as Doubtful have all the weaknesses inherent in those classified Substandard with the added characteristic that the weaknesses present make collection or liquidation in full, on the basis of currently existing facts, conditions and values, highly questionable and improbable. The principal on loans classified as Doubtful is generally charged off.  Risk ratings are updated any time the situation warrants.

Loans that are not problem or potential problem loans are considered to be pass-rated loans and risk grades are recalculated at least annually by the loan relationship manager. The following tables present the risk category of loans by class of loans based on the most recent analysis performed as of September 30, 2018 and December 31, 2017:

16

	September 30, 2018
(In thousands)	Pass		Special Mention		Substandard		Doubtful		Total
Construction and land development	$	364,903	$	6,036	$	5,318	$	—	$	376,257
Commercial real estate	1,673,457		24,328		28,914		—		1,726,699
Residential real estate	1,126,238		2,985		23,417		—		1,152,640
Commercial and financial	602,973		1,895		6,030		57		610,955
Consumer	189,223		2,900		649		—		192,772
Totals	$	3,956,794	$	38,144	$	64,328	$	57	$	4,059,323

	December 31, 2017
(In thousands)	Pass		Special Mention		Substandard		Doubtful		Total
Construction and land development	$	328,127	$	10,414	$	4,584	$	—	$	343,125
Commercial real estate	1,586,932		29,273		23,787		—		1,639,992
Residential real estate	1,023,925		4,621		10,203		61		1,038,810
Commercial and financial	593,689		3,237		8,838		250		606,014
Consumer	189,354		—		82		—		189,436
Totals	$	3,722,027	$	47,545	$	47,494	$	311	$	3,817,377

PCI Loans

PCI loans are accounted for pursuant to ASC Topic 310-30. The excess of cash flows expected to be collected over the estimated fair value is referred to as the accretable yield and is recognized in interest income over the remaining life of the loan in situations where there is a reasonable expectation about the timing and amount of cash flows expected to be collected. The difference between the contractually required payments and the cash flows expected to be collected at acquisition, considering the impact of prepayments, is referred to as the non-accretable difference.

The table below summarizes the changes in accretable yield on PCI loans for the periods ended:

	Three Months Ended September 30,						Nine Months Ended September 30,
(In thousands)	2018			2017			2018			2017
Beginning balance	$	3,189		$	3,265		$	3,699		$	3,807
Additions	—			—			—			—
Deletions	—			—			(43		)	(10		)
Accretion	(284		)	(357		)	(989		)	(1,173		)
Reclassification from non-accretable difference	—			407			238			691
Ending balance	$	2,905		$	3,315		$	2,905		$	3,315

Troubled Debt Restructured Loans

The Company’s Troubled Debt Restructuring (“TDR”) concessions granted to certain borrowers generally do not include forgiveness of principal balances, but may include interest rate reductions, an extension of the amortization period and/or converting the loan to interest only for a limited period of time. Loan modifications are not reported in calendar years after modification if the loans were modified at an interest rate equal to the yields of new loan originations with comparable risk and the loans are performing based on the terms of the restructuring agreements. Most loans prior to modification were classified as impaired and the allowance for loan losses is determined in accordance with Company policy.

17

The following table presents loans that were modified during the nine months ended:

(In thousands)	Number of Contracts	Pre- Modification Outstanding Recorded Investment		Post- Modification Outstanding Recorded Investment		Specific Reserve Recorded		Valuation Allowance Recorded
September 30, 2018
Commercial and financial	1	$	98	$	—	$	—	$	—
Totals	1	$	98	$	—	$	—	$	—
September 30, 2017
Construction and land development	1	$	52	$	46	$	6	$	6
Residential real estate	1	15		15		—		—
Totals	2	$	67	$	61	$	6	$	6

During the three months ended September 30, 2018, there were no payment defaults on loans modified to a TDR within the previous twelve months. During the nine months ended September 30, 2018, there was one payment default on a loan of $0.1 million that had been modified to a TDR within the previous twelve months, compared to none during the three months ended September 30, 2017 and one during the nine months ended September 30, 2017. The Company considers a loan to have defaulted when it becomes 90 days or more delinquent under the modified terms, has been transferred to nonaccrual status, or has been transferred to other real estate owned. A defaulted TDR is generally placed on nonaccrual and a specific allowance for loan loss is assigned in accordance with the Company’s policy.

Impaired Loans

Loans are considered impaired if they are 90 days or more past due, in nonaccrual status, or are TDRs. As of September 30, 2018 and December 31, 2017, the Company’s recorded investment in impaired loans, excluding PCI loans, the unpaid principal balance and related valuation allowance was as follows:

	September 30, 2018
(In thousands)	Recorded Investment		Unpaid Principal Balance		Related Valuation Allowance
Impaired Loans with No Related Allowance Recorded:
Construction and land development	$	202	$	479	$	—
Commercial real estate	2,896		4,161		—
Residential real estate	13,698		18,313		—
Commercial and financial	—		—		—
Consumer	54		92		—
Impaired Loans with an Allowance Recorded:
Construction and land development	210		224		23
Commercial real estate	12,898		13,025		3,591
Residential real estate	6,106		6,252		869
Commercial and financial	1,629		1,608		1,483
Consumer	392		399		172
Total Impaired Loans
Construction and land development	412		703		23
Commercial real estate	15,794		17,186		3,591
Residential real estate	19,804		24,565		869
Commercial and financial	1,629		1,608		1,483
Consumer	446		491		172
Totals	$	38,085	$	44,553	$	6,138

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	December 31, 2017
(In thousands)	Recorded Investment		Unpaid Principal Balance		Related Valuation Allowance
Impaired Loans with No Related Allowance Recorded:
Construction and land development	$	223	$	510	$	—
Commercial real estate	3,475		4,873		—
Residential real estate	10,272		15,063		—
Commercial and financial	19		29		—
Consumer	105		180		—
Impaired Loans with an Allowance Recorded:
Construction and land development	251		264		23
Commercial real estate	4,780		4,780		195
Residential real estate	8,448		8,651		1,091
Commercial and financial	2,436		883		1,050
Consumer	282		286		43
Total Impaired Loans
Construction and land development	474		774		23
Commercial real estate	8,255		9,653		195
Residential real estate	18,720		23,714		1,091
Commercial and financial	2,455		912		1,050
Consumer	387		466		43
Totals	$	30,291	$	35,519	$	2,402

Impaired loans also include TDRs where concessions have been granted to borrowers who have experienced financial difficulty. At September 30, 2018 and at December 31, 2017, accruing TDRs totaled $13.8 million and $15.6 million, respectively.

Average impaired loans for the three months ended September 30, 2018 and 2017 were $38.1 million and $30.3 million, respectively. Average impaired loans for the nine months ended September 30, 2018 and 2017 were $34.5 million and $31.2 million, respectively. The impaired loans were measured for impairment based on the value of underlying collateral or the present value of expected future cash flows discounted at the loan’s effective interest rate. The valuation allowance is included in the allowance for loan losses.

Interest payments received on impaired loans are recorded as interest income unless collection of the remaining recorded investment is doubtful, at which time payments received are recorded as reductions in principal. For the three months ended September 30, 2018 and 2017, the Company recorded interest income on impaired loans of $0.5 million and $0.4 million, respectively. For the nine months ended September 30, 2018, and 2017, the Company recorded interest income on impaired loans of $1.4 million and $1.1 million, respectively.

For impaired loans whose impairment is measured based on the present value of expected future cash flows, interest income represents the change in present value attributable to the passage of time, and totaled $36,000 and $169,000, respectively, for the three months ended September 30, 2018 and 2017 and $157,000 and $282,000, respectively, for the nine months ended September 30, 2018 and 2017.

Note F – Allowance for Loan Losses

Activity in the allowance for loan losses for the three month and nine month periods ended September 30, 2018 and 2017 is summarized as follows:

19

	Three Months Ended September 30, 2018
(In thousands)	Beginning Balance		Provision for Loan Losses			Charge- Offs			Recoveries		TDR Allowance Adjustments			Ending Balance
Construction & land development	$	2,287	$	(221	)	$	—		$	3	$	—		$	2,069
Commercial real estate	9,126		4,191			(1		)	18		(16		)	13,318
Residential real estate	8,850		(1,279		)	(6		)	99		(19		)	7,645
Commercial and financial	7,102		1,739			(842		)	163		—			8,162
Consumer	1,559		1,344			(296		)	65		(1		)	2,671
Totals	$	28,924	$	5,774		$	(1,145	)	$	348	$	(36	)	$	33,865

	Three Months Ended September 30, 2017
(In thousands)	Beginning Balance		Provision for Loan Losses			Charge- Offs			Recoveries		TDR Allowance Adjustments			Ending Balance
Construction & land development	$	1,574	$	(690	)	$	—		$	728	$	—		$	1,612
Commercial real estate	9,923		62			(239		)	175		(15		)	9,906
Residential real estate	7,423		116			(296		)	39		(148		)	7,134
Commercial and financial	5,460		834			(333		)	28		—			5,989
Consumer	1,620		358			(442		)	61		(6		)	1,591
Totals	$	26,000	$	680		$	(1,310	)	$	1,031	$	(169	)	$	26,232

	Nine Months Ended September 30, 2018
(In thousands)	Beginning Balance		Provision for Loan Losses			Charge- Offs			Recoveries		TDR Allowance Adjustments			Ending Balance
Construction & land development	$	1,642	$	414		$	—		$	13	$	—		$	2,069
Commercial real estate	9,285		3,826			(15		)	268		(46		)	13,318
Residential real estate	7,131		(78		)	(33		)	733		(108		)	7,645
Commercial and financial	7,297		3,639			(2,985		)	211		—			8,162
Consumer	1,767		1,587			(931		)	251		(3		)	2,671
Totals	$	27,122	$	9,388		$	(3,964	)	$	1,476	$	(157	)	$	33,865

	Nine Months Ended September 30, 2017
(In thousands)	Beginning Balance		Provision for Loan Losses			Charge- Offs			Recoveries		TDR Allowance Adjustments			Ending Balance
Construction & land development	$	1,219	$	(496	)	$	—		$	891	$	(2	)	$	1,612
Commercial real estate	9,273		410			(341		)	613		(49		)	9,906
Residential real estate	7,483		90			(482		)	266		(223		)	7,134
Commercial and financial	3,636		3,036			(837		)	154		—			5,989
Consumer	1,789		345			(756		)	221		(8		)	1,591
Totals	$	23,400	$	3,385		$	(2,416	)	$	2,145	$	(282	)	$	26,232

The allowance for loan losses is composed of specific allowances for certain impaired loans and general allowances grouped into loan pools based on similar characteristics. The Company’s loan portfolio, excluding PCI loans, and related allowance at September 30, 2018 and December 31, 2017 is shown in the following tables:

20

	September 30, 2018
	Individually Evaluated for Impairment				Collectively Evaluated for Impairment				Total
(In thousands)	Recorded Investment		Associated Allowance		Recorded Investment		Associated Allowance		Recorded Investment		Associated Allowance
Construction & land development	$	412	$	23	$	375,716	$	2,046	$	376,128	$	2,069
Commercial real estate	15,794		3,591		1,699,743		9,727		1,715,537		13,318
Residential real estate	19,804		869		1,131,519		6,776		1,151,323		7,645
Commercial and financial	1,629		1,483		608,598		6,679		610,227		8,162
Consumer	446		172		192,611		2,499		193,057		2,671
Totals	$	38,085	$	6,138	$	4,008,187	$	27,727	$	4,046,272	$	33,865

	December 31, 2017
	Individually Evaluated for Impairment				Collectively Evaluated for Impairment				Total
(In thousands)	Recorded Investment		Associated Allowance		Recorded Investment		Associated Allowance		Recorded Investment		Associated Allowance
Construction & land development	$	474	$	23	$	341,530	$	1,619	$	342,004	$	1,642
Commercial real estate	8,255		195		1,621,960		9,090		1,630,215		9,285
Residential real estate	18,720		1,091		1,014,465		6,040		1,033,185		7,131
Commercial and financial	2,455		1,050		602,666		6,247		605,121		7,297
Consumer	387		43		189,049		1,724		189,436		1,767
Totals	$	30,291	$	2,402	$	3,769,670	$	24,720	$	3,799,961	$	27,122

Loans collectively evaluated for impairment reported at September 30, 2018 included acquired loans that are not PCI loans. At September 30, 2018, the remaining fair value adjustments for loans acquired was approximately $13.4 million, or approximately 2.0% of the outstanding aggregate PUL balances. At December 31, 2017, the remaining fair value adjustments for loans acquired was approximately $19.4 million, or 2.2% of the outstanding aggregate PUL balances. These amounts represent the fair value discount of each PUL and are accreted into interest income over the remaining lives of the related loans on a level yield basis.

The table below summarizes PCI loans that were individually evaluated for impairment based on expected cash flows at September 30, 2018 and December 31, 2017:

	September 30, 2018				December 31, 2017
	PCI Loans Individually Evaluated for Impairment
(In thousands)	Recorded Investment		Associated Allowance		Recorded Investment		Associated Allowance
Construction & land development	$	129	$	—	$	1,121	$	—
Commercial real estate	10,838		—		9,776		—
Residential real estate	1,356		—		5,626		—
Commercial and financial	728		—		894		—
Consumer	—		—		—		—
Totals	$	13,051	$	—	$	17,417	$	—

Note G – Securities Sold Under Agreements to Repurchase

Securities sold under agreements to repurchase are accounted for as secured borrowings. For securities sold under agreements to repurchase, the Company is obligated to provide additional collateral in the event of a significant decline in fair value of collateral pledged. Company securities sold under agreements to repurchase and securities pledged were as follows by collateral type and maturity as of: 

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(In thousands)	September 30, 2018		December 31, 2017
Fair-Value of Pledged Securities - overnight and continuous
Mortgage-backed securities and collateralized mortgage
obligations of U.S. Government Sponsored Entities	$	189,035	$	216,094

Note H – Noninterest Income and Expense

Detail of noninterest income and expenses for the three and nine months ended September 30, 2018 and 2017 are as follows:

	Three Months Ended September 30,						Nine Months Ended September 30,
(In thousands)	2018			2017			2018			2017
Noninterest income
Service charges on deposit accounts	$	2,833		$	2,626		$	8,179		$	7,483
Trust fees	1,083			967			3,143			2,764
Mortgage banking fees	1,135			2,138			3,873			4,962
Brokerage commissions and fees	444			351			1,264			1,079
Marine finance fees	194			137			1,213			597
Interchange income	3,119			2,582			9,137			7,747
BOLI income	1,078			836			3,200			2,326
Other income	2,453			1,844			7,497			4,895
	12,339			11,481			37,506			31,853
Securities losses, net	(48		)	(47		)	(198		)	(26		)
Totals	$	12,291		$	11,434		$	37,308		$	31,827
Noninterest expense
Salaries and wages	$	17,129		$	15,627		$	48,939		$	49,371
Employee benefits	3,205			2,917			9,320			8,920
Outsourced data processing costs	3,493			3,231			10,565			9,956
Telephone/data lines	624			573			1,879			1,753
Occupancy	3,214			2,447			9,647			10,025
Furniture and equipment	1,367			1,191			4,292			4,261
Marketing	1,139			1,298			3,735			3,294
Legal and professional fees	2,019			2,560			6,293			7,968
FDIC assessments	431			548			1,624			1,768
Amortization of intangibles	1,004			839			2,997			2,397
Net (gain)/loss and disposition expense on other real estate owned	(136		)	(297		)	461			(293		)
Other	3,910			3,427			13,057			11,312
Total	$	37,399		$	34,361		$	112,809		$	110,732

Note I – Equity Capital

The Company is well capitalized and at September 30, 2018, the Company and the Company’s principal banking subsidiary, Seacoast Bank, exceeded the common equity Tier 1 capital ratio (CET1) regulatory threshold of 6.5% for well-capitalized institutions under the Basel III standardized transition approach, as well as risk-based and leverage ratio requirements for well capitalized banks under the regulatory framework for prompt corrective action.

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Note J – Contingencies

The Company and its subsidiaries, because of the nature of their businesses, are at all times subject to legal actions, threatened or filed. Management presently believes that none of the legal proceedings to which it is a party are likely to have a material adverse effect on the Company’s consolidated financial condition, operating results or cash flows, although no assurance can be given with respect to the ultimate outcome of any such claim or litigation.

Note K – Fair Value

Under ASC 820, fair value measurements for items measured at fair value on a recurring and nonrecurring basis at September 30, 2018 and December 31, 2017 included:

(In thousands)	Fair Value Measurements		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
September 30, 2018
Available for sale debt securities (1)	$	923,206	$	99	$	923,107	$	—
Loans held for sale (2)	16,172		—		16,172		—
Loans (3)	7,268		—		2,255		5,013
Other real estate owned (4)	4,715		—		64		4,651
Equity securities (5)	6,145		6,145		—		—
December 31, 2017
Available for sale debt securities (1)(5)	$	949,460	$	100	$	949,360	$	—
Loans held for sale (2)	24,306		—		24,306		—
Loans (3)	4,192		—		3,454		738
Other real estate owned (4)	7,640		—		60		7,580
Equity securities (5)	6,344		6,344		—		—

(1) See Note D for further detail of fair value of individual investment categories.

(2) Recurring fair value basis determined using observable market data.

(3) See Note F. Nonrecurring fair value adjustments to loans identified as impaired reflect full or partial write-downs that are based on the loan’s observable market price or current appraised value of the collateral in accordance with ASC 310.

(4) Fair value is measured on a nonrecurring basis in accordance with ASC 360.

(5) Prior to adoption of ASU 2016-1 on January 1, 2018, an investment in shares of a mutual fund that invests primarily in CRA-qualified debt securities was classified as an available for sale security. Beginning in 2018, this security is reported at fair value in Other Assets. Fair value is determined based on market quotations.

Loans held for sale: Fair values are based upon estimated values received from independent third party purchasers. These loans are intended for sale and the Company believes that the fair value is the best indicator of the resolution of these loans. Interest income is recorded based on the contractual terms of the loan and in accordance with the Company’s policy on loans held for investment. None of the loans are 90 days or more past due or on nonaccrual as of September 30, 2018 and December 31, 2017. The aggregate fair value and contractual balance of loans held for sale as of September 30, 2018 and December 31, 2017 is as follows:

(In thousands)	September 30, 2018		December 31, 2017
Aggregate fair value	$	16,172	$	24,306
Contractual balance	15,722		23,627
Excess	450		679

Loans: Level 2 loans consist of impaired real estate loans which are collateral dependent. Fair value is based on recent real estate appraisals less estimated costs of sale. For residential real estate impaired loans, appraised values or internal evaluations are based

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on the comparative sales approach. Level 3 loans consist of commercial and commercial real estate impaired loans. For these loans evaluations may use either a single valuation approach or a combination of approaches, such as comparative sales, cost and/or income approach. A significant unobservable input in the income approach is the estimated capitalization rate for a given piece of collateral. At September 30, 2018, the capitalization rates utilized to determine fair value of the underlying collateral averaged approximately 7.6%. Adjustments to comparable sales may be made by an appraiser to reflect local market conditions or other economic factors and may result in changes in the fair value of an asset over time. As such, the fair value of these impaired loans is considered level 3 in the fair value hierarchy. Impaired loans measured at fair value total $7.3 million with a specific reserve of $6.1 million at September 30, 2018, compared to $4.2 million with a specific reserve of $2.4 million at December 31, 2017.

Other real estate owned: When appraisals are used to determine fair value and the appraisals are based on a market approach, the fair value of other real estate owned (“OREO”) is classified as a level 2 input. When the fair value of OREO is based on appraisals which require significant adjustments to market-based valuation inputs or apply an income approach based on unobservable cash flows, the fair value of OREO is classified as Level 3.

Transfers between levels of the fair value hierarchy are recognized on the actual date of the event or circumstances that caused the transfer, which generally coincides with the Company’s monthly and/or quarter-end valuation process. There were no such transfers during the nine months ended September 30, 2018 and 2017.

For loans classified as level 3, the changes included additions of $8.2 million related to loans that became impaired during 2018, offset by paydowns and chargeoffs of $3.9 million for the nine months ended September 30, 2018.

For OREO classified as level 3 during the nine months ended September 30, 2018, changes included the addition of foreclosed loans of $0.3 million and migrated branches taken out of service of $2.0 million offset by reductions primarily consisting of sales of $5.3 million.

The carrying amount and fair value of the Company’s other financial instruments that are not measured at fair value on a recurring basis in the balance sheet as of September 30, 2018 and December 31, 2017 is as follows:

(In thousands)	Carrying Amount		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
September 30, 2018
Financial Assets
Debt securities held to maturity (1)	$	367,387	$	—	$	353,919	$	—
Time deposits with other banks	9,813		—		—		9,715
Loans, net	4,018,190		—		—		3,982,029
Financial Liabilities
Deposit liabilities	4,643,510		—		—		4,638,270
Federal Home Loan Bank (FHLB) borrowings	261,000		—		—		261,036
Subordinated debt	70,734		—		61,716		—
December 31, 2017
Financial Assets
Debt securities held to maturity (1)	$	416,863	$	—	$	414,470	$	—
Time deposits with other banks	12,553		—		—		12,493
Loans, net	3,786,063		—		—		3,760,754
Financial Liabilities
Deposit liabilities	4,592,720		—		—		4,588,515
Federal Home Loan Bank (FHLB) borrowings	211,000		—		—		211,000
Subordinated debt	70,521		—		61,530		—

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(1) See Note D for further detail of individual investment categories.

The short maturity of Seacoast’s assets and liabilities results in having a significant number of financial instruments whose fair value equals or closely approximates carrying value. Such financial instruments are reported in the following balance sheet captions: cash and due from banks, interest bearing deposits with other banks, and securities sold under agreements to repurchase, maturing within 30 days.

The following methods and assumptions were used to estimate the fair value of each class of financial instrument for which it is practicable to estimate that value at September 30, 2018 and December 31, 2017:

Debt securities: U.S. Treasury debt securities are reported at fair value utilizing Level 1 inputs. Other debt securities are reported at fair value utilizing Level 2 inputs. The estimated fair value of a security is determined based on market quotations when available or, if not available, by using quoted market prices for similar securities, pricing models or discounted cash flow analyses, using observable market data where available.

The Company reviews the prices supplied by independent pricing services, as well as their underlying pricing methodologies, for reasonableness and to ensure such prices are aligned with traditional pricing matrices. The fair value of collateralized loan obligations is determined from broker quotes. From time to time, the Company will validate, on a sample basis, prices supplied by the independent pricing service by comparison to prices obtained from other brokers and third-party sources or derived using internal models.

Loans: Fair values are estimated for portfolios of loans with similar financial characteristics. Loans are segregated by type such as commercial or mortgage. Each loan category is further segmented into fixed and adjustable rate interest terms as well as performing and nonperforming categories. The fair value of loans is calculated by discounting scheduled cash flows through the estimated life including prepayment considerations, using estimated market discount rates that reflect the risks inherent in the loan. Prior to adoption of ASU 2016-1 on January 1, 2018, the estimated fair value of the loan portfolio utilized an “entrance price” approach. Beginning in 2018, the fair value approach considers market-driven variables including credit related factors and reflects an “exit price” as defined in ASC 820.

Deposit Liabilities: The fair value of demand deposits, savings accounts and money market deposits is the amount payable at the reporting date. The fair value of fixed maturity certificates of deposit is estimated using the rates currently offered for funding of similar remaining maturities.

Note L – Business Combinations

Acquisition of GulfShore Bancshares, Inc.

On April 7, 2017, the Company completed its acquisition of GulfShore Bancshares, Inc. ("Gulfshore"), the parent company of GulfShore Bank. Simultaneously, upon completion of the merger, GulfShore’s wholly owned subsidiary bank, GulfShore Bank, was merged with and into Seacoast Bank. GulfShore, headquartered in Tampa, Florida, operated 3 branches in Tampa and St. Petersburg. This acquisition added $358 million in total assets, $251 million in loans and $285 million in deposits to Seacoast.

As a result of this acquisition, the Company expects to enhance its presence in the Tampa, Florida market, expand its customer base and leverage operating cost through economies of scale, and positively affect the Company’s operating results to the extent the Company earns more from interest earning assets than it pays in interest on its interest bearing liabilities.

The Company acquired 100% of the outstanding common stock of GulfShore. Under the terms of the definitive agreement, GulfShore shareholders received, for each share of GulfShore common stock, the combination of $1.47 in cash and 0.4807 shares of Seacoast common stock (based on Seacoast’s closing price of $23.94 per share on April 7, 2017).

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(In thousands, except per share data)	April 7, 2017
Shares exchanged for cash	$	8,034
Number of GulfShore Bancshares, Inc. common shares outstanding	5,464
Per share exchange ratio	0.4807
Number of shares of common stock issued	2,627
Multiplied by common stock price per share on April 7, 2017	$	23.94
Value of common stock issued	62,883
Total purchase price	$	70,917

The acquisition was accounted for under the acquisition method in accordance with ASC Topic 805, Business Combinations. The Company recognized goodwill of $37.1 million for this acquisition that is nondeductible for tax purposes. Determining fair values of assets and liabilities, especially the loan portfolio, core deposit intangibles, and deferred taxes, is a complicated process involving significant judgment regarding methods and assumptions used to calculate estimated fair values.

(In thousands)	Initially Reported April 7, 2017		Measurement Period Adjustments		As Adjusted April 7, 2017
Assets:
Cash	$	55,540	$	—	$	55,540
Investment securities	316		—		316
Loans, net	250,876		—		250,876
Fixed assets	1,307		—		1,307
Other real estate owned	13		—		13
Core deposit intangibles	3,927		—		3,927
Goodwill	37,098		—		37,098
Other assets	8,572		—		8,572
Totals	$	357,649	—		$	357,649
Liabilities:
Deposits	$	285,350	$	—	$	285,350
Other liabilities	1,382		—		1,382
Totals	$	286,732	—		$	286,732

The table below presents information with respect to the fair value of acquired loans, as well as their unpaid principal balance (“Book Balance”) at acquisition date.

	April 7, 2017
(In thousands)	Book Balance		Fair Value
Loans:
Single family residential real estate	$	101,281	$	99,598
Commercial real estate	106,729		103,905
Construction/development/land	13,175		11,653
Commercial loans	32,137		32,247
Consumer and other loans	3,554		3,473
Purchased credit-impaired	—		—
Total acquired loans	$	256,876	$	250,876

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No loans acquired were specifically identified with credit deficiency factors, pursuant to ASC Topic 310-30. The factors we considered to identify loans as PCI loans were all acquired loans that were nonaccrual, 60 days or more past due, designated as TDR, graded “special mention” or “substandard.”

Loans without specifically identified credit deficiency factors are referred to as PULs for disclosure purposes. These loans were then evaluated to determine estimated fair values as of the acquisition date. Although no specific credit deficiencies were identifiable, we believe there is an element of risk as to whether all contractual cash flows will be eventually received. Factors that were considered included the economic environment both nationally and locally as well as the real estate market particularly in Florida. We have applied ASC Topic 310-20 accounting treatment to the PULs.

The Company believes the deposits assumed from the acquisition have an intangible value. In determining the valuation amount, deposits were analyzed based on factors such as type of deposit, deposit retention, interest rates and age of deposit relationships.

Acquisition of NorthStar Banking Corporation

On October 20, 2017, the Company completed its acquisition of NorthStar Banking Corporation (“NSBC”). Simultaneously, upon completion of the merger of NSBC with and into the Company, NSBC’s wholly owned subsidiary bank, NorthStar Bank (“NorthStar”), was merged with and into Seacoast Bank. NorthStar, headquartered in Tampa, Florida, operated three branches in Tampa. This acquisition added $216 million in total assets, $137 million in loans and $182 million in deposits to Seacoast.

As a result of this acquisition, the Company expects to further enhance its presence in the Tampa, Florida market, expand its customer base and leverage operating cost through economies of scale, and positively affect the Company’s operating results to the extent the Company earns more from interest earning assets than it pays in interest on its interest bearing liabilities.

The Company acquired 100% of the outstanding common stock of NSBC. Under the terms of the definitive agreement, NSBC shareholders received, for each share of NSBC common stock, the combination of $2.40 in cash and 0.5605 shares of Seacoast common stock (based on Seacoast’s closing price of $24.92 per share on October 20, 2017).

(In thousands, except per share data)	October 20, 2017
Shares exchanged for cash	$	4,701
Number of NorthStar Banking Corporation common shares outstanding	1,958
Per share exchange ratio	0.5605
Number of shares of common stock issued	1,098
Multiplied by common stock price per share on October 20, 2017	$	24.92
Value of common stock issued	27,353
Cash paid for NorthStar Banking Corporation vested stock options	801
Total purchase price	$	32,855

The acquisition was accounted for under the acquisition method in accordance with ASC Topic 805, Business Combinations. The Company recognized goodwill of $12.3 million for this acquisition that is nondeductible for tax purposes. Determining fair values of assets and liabilities, especially the loan portfolio, core deposit intangibles, and deferred taxes, is a complicated process involving significant judgment regarding methods and assumptions used to calculate estimated fair values.

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(In thousands)	Initially Reported October 20, 2017		Measurement Period Adjustments			As Adjusted October 20, 2017
Assets:
Cash	$	5,485	$	—		$	5,485
Investment securities	56,123		—			56,123
Loans, net	136,832		—			136,832
Fixed assets	2,637		—			2,637
Core deposit intangibles	1,275		—			1,275
Goodwill	12,404		(99		)	12,305
Other assets	1,522		99			1,621
Totals	$	216,278	$	—		$	216,278
Liabilities:
Deposits	$	182,443	$	—		$	182,443
Other liabilities	980		—			980
Totals	$	183,423	$	—		$	183,423

 The table below presents information with respect to the fair value of acquired loans, as well as their unpaid principal balance (“Book Balance”) at acquisition date.

	October 20, 2017
(In thousands)	Book Balance		Fair Value
Loans:
Single family residential real estate	$	15,111	$	15,096
Commercial real estate	73,139		69,554
Construction/development/land	11,706		10,390
Commercial loans	31,200		30,854
Consumer and other loans	6,761		6,645
Purchased Credit Impaired	5,527		4,293
Total acquired loans	$	143,444	$	136,832

For the loans acquired we first segregated all acquired loans with specifically identified credit deficiency factors. The factors we considered to identify loans as PCI loans were all acquired loans that were nonaccrual, 60 days or more past due, designated as TDR, graded “special mention” or “substandard.” These loans were then evaluated to determine estimated fair values as of the acquisition date. As required by generally accepted accounting principles, we are accounting for these loans pursuant to ASC Topic 310-30. The table below summarizes the total contractually required principal and interest cash payments, management’s estimate of expected total cash payments and fair value of the loans as of October 20, 2017 for purchased credit impaired loans. Contractually required principal and interest payments have been adjusted for estimated prepayments.

(In thousands)	October 20, 2017
Contractually required principal and interest	$	5,596
Non-accretable difference	(689		)
Cash flows expected to be collected	4,907
Accretable yield	(614		)
Total purchased credit-impaired loan acquired	$	4,293

Loans without specifically identified credit deficiency factors are referred to as PULs for disclosure purposes. These loans were then evaluated to determine estimated fair values as of the acquisition date. Although no specific credit deficiencies were identifiable, we believe there is an element of risk as to whether all contractual cash flows will be eventually received. Factors

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that were considered included the economic environment both nationally and locally as well as the real estate market particularly in Florida. We have applied ASC Topic 310-20 accounting treatment to the PULs.

The Company believes the deposits assumed from the acquisition have an intangible value. In determining the valuation amount, deposits were analyzed based on factors such as type of deposit, deposit retention, interest rates and age of deposit relationships.

Acquisition of Palm Beach Community Bank

On November 3, 2017, the Company completed its acquisition of Palm Beach Community Bank (“PBCB”). PBCB was merged with and into Seacoast Bank. This acquisition added $357 million in total assets, $270 million in loans and $269 million in deposits to Seacoast. PBCB, headquartered in West Palm Beach, Florida, operated four branches in West Palm Beach.

As a result of this acquisition, the Company expects to enhance its presence in the Palm Beach, Florida market, expand its customer base and leverage operating cost through economies of scale, and positively affect the Company’s operating results to the extent the Company earns more from interest earning assets than it pays in interest on its interest bearing liabilities.

The Company acquired 100% of the outstanding common stock of PBCB. Under the terms of the definitive agreement, PBCB shareholders received, for each share of PBCB common stock, the combination of $6.26 in cash and 0.9240 shares of Seacoast common stock (based on Seacoast’s closing price of $24.31 per share on November 3, 2017).

(In thousands, except per share data)	November 3, 2017
Shares exchanged for cash	$	15,694
Number of Palm Beach Community Bank common shares outstanding	2,507
Per share exchange ratio	0.9240
Number of shares of common stock issued	2,316
Multiplied by common stock price per share on November 3, 2017	$	24.31
Value of common stock issued	56,312
Total purchase price	$	72,006

The acquisition was accounted for under the acquisition method in accordance with ASC Topic 805, Business Combinations. The Company recognized goodwill of $34.8 million for this acquisition that is nondeductible for tax purposes. Determining fair values of assets and liabilities, especially the loan portfolio, core deposit intangibles, and deferred taxes, is a complicated process involving significant judgment regarding methods and assumptions used to calculate estimated fair values.

(In thousands)	Initially Reported November 3, 2017		Measurement Period Adjustments			As Adjusted November 3, 2017
Assets:
Cash	$	9,301	$	—		$	9,301
Investment securities	22,098		—			22,098
Loans, net	272,090		(1,772		)	270,318
Fixed assets	7,641		—			7,641
Core deposit intangibles	2,523		—			2,523
Goodwill	33,428		1,323			34,751
Other assets	9,909		449			10,358
Totals	$	356,990	$	—		$	356,990
Liabilities:
Deposits	$	268,633	$	—		$	268,633
Other liabilities	16,351		—			16,351
Totals	$	284,984	$	—		$	284,984

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The table below presents information with respect to the fair value of acquired loans, as well as their unpaid principal balance (“Book Balance”) at acquisition date.

	As Adjusted November 3, 2017
(In thousands)	Book Balance		Fair Value
Loans:
Single family residential real estate	$	30,153	$	30,990
Commercial real estate	134,705		132,089
Construction/development/land	69,686		67,425
Commercial loans	36,076		35,876
Consumer and other loans	179		172
Purchased Credit Impaired	4,768		3,766
Total acquired loans	$	275,567	$	270,318

For the loans acquired we first segregated all acquired loans with specifically identified credit deficiency factors. The factors we considered to identify loans as PCI loans were all acquired loans that were nonaccrual, 60 days or more past due, designated as TDR, graded “special mention” or “substandard.” These loans were then evaluated to determine estimated fair values as of the acquisition date. As required by generally accepted accounting principles, we are accounting for these loans pursuant to ASC Topic 310-30. The table below summarizes the total contractually required principal and interest cash payments, management’s estimate of expected total cash payments and fair value of the loans as of November 3, 2017 for purchased credit impaired loans. Contractually required principal and interest payments have been adjusted for estimated prepayments.

(In thousands)	November 3, 2017
Contractually required principal and interest	$	4,768
Non-accretable difference	(1,002		)
Cash flows expected to be collected	3,766
Accretable yield	—
Total purchased credit-impaired loan acquired	$	3,766

Loans without specifically identified credit deficiency factors are referred to as PULs for disclosure purposes. These loans were then evaluated to determine estimated fair values as of the acquisition date. Although no specific credit deficiencies were identifiable, we believe there is an element of risk as to whether all contractual cash flows will be eventually received. Factors that were considered included the economic environment both nationally and locally as well as the real estate market particularly in Florida. We have applied ASC Topic 310-20 accounting treatment to the PULs.

The Company believes the deposits assumed from the acquisition have an intangible value. In determining the valuation amount, deposits were analyzed based on factors such as type of deposit, deposit retention, interest rates and age of deposit relationships.

Pro-Forma Information

Pro-forma data for the three and nine months ended September 30, 2017 as if the acquisitions of GulfShore, NSBC and PBCB occurred at the beginning of 2017 is as follows:

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	Three Months Ended September 30,		Nine Months Ended September 30,
(In thousands, except per share amounts)	2017		2017
Net interest income	$	51,115	$	146,668
Net income	16,321		37,149
EPS - basic	0.35		0.81
EPS - diluted	0.35		0.80

Acquisition of First Green Bancorp, Inc.

On October 19, 2018, the Company completed its acquisition of First Green Bancorp, Inc ("First Green"). Simultaneously, upon completion of the merger of First Green with and into the Company, First Green's wholly owned subsidiary bank, First Green Bank, was merged with and into Seacoast Bank. Prior to the acquisition , First Green operated seven branches in the Orlando, Daytona, and Fort Lauderdale markets. The Company acquired 100% of the outstanding common stock of First Green. Under the terms of the definitive agreement, each share of First Green common stock was converted into the right to receive 0.7324 shares of Seacoast common stock.

(In thousands, except per share data)	October 19, 2018
Number of First Green common shares outstanding	5,462
Per share exchange ratio	0.7324
Number of shares of Seacoast common stock issued	4,000
Multiplied by common stock price per share on October 19, 2018	$	26.87
Value of common stock issued	107,486
Cash paid for First Green stock options	6,558
Total purchase price	$	114,044

The acquisition of First Green will be accounted for under the acquisition method of accounting in accordance with ASC Topic 805, Business Combinations. The Company's assessment of the fair value of assets acquired and liabilities assumed as of the acquisition date is incomplete at the time of this filing; therefore, certain disclosures have been omitted. The Company expects to recognize goodwill in this transaction, which is expected to be nondeductible for tax purposes.

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

The purpose of this discussion and analysis is to aid in understanding significant changes in the financial condition of Seacoast Banking Corporation of Florida and its subsidiaries (the “Company”) and their results of operations. Nearly all of the Company’s operations are contained in its banking subsidiary, Seacoast Bank (“Seacoast Bank” or the “Bank”). Such discussion and analysis should be read in conjunction with the Company’s Condensed Consolidated Financial Statements and the related notes included in this report.

The emphasis of this discussion will be on the three months and nine months ended September 30, 2018 compared to the three months and nine months ended September 30, 2017 for the consolidated statements of income. For the consolidated balance sheets, the emphasis of this discussion will be the balances as of September 30, 2018 compared to December 31, 2017.

This discussion and analysis contains statements that may be considered “forward-looking statements” as defined in, and subject to the protections of the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. See the following section for additional information regarding forward-looking statements.

For purposes of the following discussion, the words the “Company,” “we,” “us,” and “our” refer to the combined entities of Seacoast Banking Corporation of Florida and its direct and indirect wholly owned subsidiaries.

Special Cautionary Notice Regarding Forward-Looking Statements

Certain statements made or incorporated by reference herein which are not statements of historical fact, including those under “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and elsewhere herein, are “forward-looking statements” within the meaning and protections of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). Forward-looking statements include statements with respect to our beliefs, plans, objectives, goals, expectations, anticipations, assumptions, estimates, intentions and future performance, and involve known and unknown risks, uncertainties and other factors, which may be beyond our control, and which may cause the actual results, performance or achievements of Seacoast Banking Corporation of Florida (“Seacoast” or the “Company”) to be materially different from those set forth in the forward-looking statements.

All statements other than statements of historical fact are statements that could be forward-looking statements. You can identify these forward-looking statements through our use of words such as “may,” “will,” “anticipate,” “assume,” “should,” “indicate,” “would,” “believe,” “contemplate,” “expect,” “estimate,” “continue,” “further,” “plan,” “point to,” “project,” “could,” “intend,” “target” and other similar words and expressions of the future. These forward-looking statements may not be realized due to a variety of factors, including, without limitation:

• the effects of current and future economic, business and market conditions in the United States generally or in the communities we serve;

• changes in governmental monetary and fiscal policies, including interest rate policies of the Board of Governors of the Federal Reserve System (the “Federal Reserve”);

• legislative and regulatory changes, including changes in banking, securities and tax laws and regulations and their application by our regulators, including those associated with the Dodd Frank Wall Street Reform and Consumer Protection Act (the “Dodd-Frank Act”) and changes in the scope and cost of Federal Deposit Insurance Corporation (“FDIC”) insurance and other coverage;

• changes in accounting policies, rules and practices and applications or determinations made thereunder, as may be adopted by the bank regulatory agencies, the Financial Accounting Standards Board (the “FASB”), the Securities and Exchange Commission (the “Commission” or “SEC”), and the Public Company Accounting Oversight Board (the “PCAOB”);

• the risks of changes in interest rates on the levels, composition and costs of deposits, including the risk of losing customer checking and savings account deposits as customers pursue other, high-yield investments, which could increase our funding costs;

• the risks of changes in interest rates on loan demand, and the values and liquidity of loan collateral, debt securities, and interest sensitive assets and liabilities;

• changes in borrower credit risks and payment behaviors;

• changes in the availability and cost of credit and capital in the financial markets;

• changes in the prices, values and sales volumes of residential and commercial real estate in the United States and in the communities we serve, which could impact write-downs of assets, our ability to liquidate non-performing assets, realized losses on the disposition of non-performing assets and increased credit losses;

• our ability to comply with any requirements imposed on us or on our banking subsidiary, Seacoast National Bank (“Seacoast Bank”) by regulators and the potential negative consequences that may result;

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• the effects of problems encountered by other financial institutions that adversely affect us or the banking industry generally could require us to change certain business practices, reduce our revenue, impose additional costs on us, or otherwise negatively affect our businesses;

• our concentration in commercial real estate loans;

• the failure of assumptions and estimates, as well as differences in, and changes to, economic, market and credit conditions, including changes in borrowers’ credit risks and payment behaviors from those used in our loan portfolio stress test;

• the effects of competition from a wide variety of local, regional, national and other providers of financial, investment and insurance services;

• the failure of assumptions and estimates underlying the establishment of reserves for possible loan losses and other estimates;

• the impact on the valuation of our investments due to market volatility or counterparty payment risk;

• statutory and regulatory restrictions on our ability to pay dividends to our shareholders;

• any applicable regulatory limits on Seacoast Bank’s ability to pay dividends to us;

• increases in regulatory capital requirements for banking organizations generally, which may adversely affect our ability to expand our business or could cause us to shrink our business;

• the risks of mergers, acquisitions and divestitures, including, without limitation, the related time and costs of implementing such transactions, integrating operations as part of these transactions and possible failures to achieve expected gains, revenue growth and/or expense savings from such transactions;

• our ability to continue to identify acquisition targets and successfully acquire desirable financial institutions to sustain our growth, to expand our presence in our markets and to enter new markets;

• changes in technology or products that may be more difficult, costly, or less effective than anticipated;

• our ability to identify and address increased cybersecurity risks, including data security breaches, malware, "denial of service" attacks, "hacking", and identity theft, a failure of which could result in potential business disruptions or financial losses;

• inability of our risk management framework to manage risks associated with our business such as credit risk and operational risk, including third party vendors and other service providers;

• dependence on key suppliers or vendors to obtain equipment or services for our business on acceptable terms:

• the effects of the failure of any component of our business infrastructure provided by a third party could disrupt our business, result in the disclosure of and/or misuse of confidential information or proprietary information, increase our costs, negatively affect our reputation, and cause losses;

• the inability of internal controls and procedures to prevent, detect or mitigate any material errors or fraudulent acts;

• reduction in or the termination of our ability to use the mobile-based platform that is critical to our business growth strategy, including a failure in or breach of our operational or security systems or those of our third party service providers;

• the effects of war or other conflicts, acts of terrorism, natural disasters or other catastrophic events that may affect general economic conditions;

• unexpected outcomes of, and the costs associated with, existing or new litigation involving us;

• the risks that our deferred tax assets could be reduced if estimates of future taxable income from our operations and tax planning strategies are less than currently estimated, or adjustments to our preliminary estimates of the impact of the Tax Cuts and Jobs Act (the “Tax Reform Act”) on certain tax attributes including our deferred tax assets, and sales of our capital stock could trigger a reduction in the amount of net operating loss carryforwards that we may be able to utilize for income tax purposes; and

• other factors and risks described under “Risk Factors” herein and in any of our subsequent reports filed with the SEC and available on its website at www.sec.gov.

All written or oral forward-looking statements that are made by us or are attributable to us are expressly qualified in their entirety by this cautionary notice. We assume no obligation to update, revise or correct any forward-looking statements that are made from time to time, either as a result of future developments, new information or otherwise, except as may be required by law.

THIRD QUARTER 2018

Results of Operations

Earnings Overview

Third quarter 2018 and year to date results

We remain focused in our ability to achieve our vision 2020 targets announced at our Investor Day in early 2017. These include a return on tangible assets of 1.30%+, a return on tangible common equity of 16%+, and an efficiency ratio below 50%. For the third quarter of 2018, Seacoast reported net income of $16.3 million, or $0.34 per average common diluted share, compared to $17.0 million or $0.35 for the prior quarter and $14.2 million or $0.32 for the third quarter of 2017. For the nine months ended September 30, 2018, net income was $51.3 million or $1.07 per average common diluted share, compared to $29.8 million or $0.70 for the nine month

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s ended September 30, 2017. Adjusted net income¹ (a non-GAAP measure) totaled $17.6 million, or $0.37 per average common diluted share, compared to $18.3 million or $0.38 for the prior quarter and $15.1 million or $0.35 for the third quarter of 2017. For the nine months ended September 30, 2018, adjusted net income¹ totaled $55.2 million or $1.15 per average common diluted share, compared to $38.1 million or $0.90 for the nine months ended September 30, 2017.

¹Non-GAAP measure. See the reconciliation of net income to adjusted net income.

	Third		Second		Third		Nine Months Ended
	Quarter		Quarter		Quarter		September 30,
	2018		2018		2017		2018		2017
Return on average tangible assets	1.18	%	1.24	%	1.12	%	1.25	%	0.85	%
Return on average tangible shareholders' equity	12.0		13.1		12.5		13.1		9.6
Efficiency ratio	57.0		58.4		58.9		57.7		67.7
Adjusted return on average tangible assets1	1.22	%	1.28	%	1.16	%	1.29	%	1.03	%
Adjusted return on average tangible shareholders' equity1	12.4		13.5		12.8		13.5		11.7
Adjusted efficiency ratio1	56.3		57.3		57.7		56.9		61.0

¹Non-GAAP measure. See the reconciliation of net income to adjusted net income and noninterest expenses to adjusted noninterest expenses.

For the nine months ended September 30, 2018, our adjusted return on average tangible assets¹ and adjusted return on average tangible shareholders' equity¹ were improved when compared to the same period in the prior year. This improvement is the result of higher adjusted net income¹ in the current year to date period, partially offset by higher tangible assets and higher tangible shareholders' equity. The improvement in the adjusted efficiency ratio¹ reflects our disciplined expense control and the preliminary results of projects underway to streamline and automate operational functions.

Net Interest Income and Margin

Net interest income for the quarter totaled $51.6 million, increasing $1.4 million or 3% during the third quarter of 2018 compared to second quarter 2018, and was $5.8 million or 13% higher than third quarter 2017. For the nine months ended September 30, 2018, net interest income totaled $151.5 million, an increase of $23.5 million or 18% compared to the nine months ended September 30, 2017. Net interest margin was 3.82% in the third quarter 2018, compared to 3.77% for second quarter 2018 and 3.74% in the prior year’s third quarter. Loan growth, balance sheet mix and increases in benchmark interest rates have been the primary forces affecting net interest income and net interest margin results. Acquisitions have further accelerated these trends. Organic loan growth of $267 million or 8% since September 30, 2017, the addition of $137 million in loans from the NorthStar merger and $270 million from the PBCB merger, all contributed to the net interest income improvement year over year for the third quarter and nine months ended September 30, 2018. Net interest income for 2018 should continue to benefit from the impact of the acquisitions completed in fourth quarter 2017 and the First Green acquisition completed on October 19, 2018.

The following table details the trend for net interest income and margin results (on a tax equivalent basis, a non-GAAP measure), the yield on earning assets and the rate paid on interest bearing liabilities for the periods specified:

(In thousands, except ratios)	Net Interest Income1		Net Interest Margin1		Yield on Earning Assets1		Rate on Interest Bearing Liabilities
Third quarter 2018	$	51,709	3.82	%	4.38	%	0.82	%
Second quarter 2018	50,294		3.77	%	4.25	%	0.71	%
Third quarter 2017	45,903		3.74	%	4.10	%	0.51	%
Nine Months Ended September 30, 2018	151,856		3.79	%	4.29	%	0.72	%
Nine Months Ended September 30, 2017	128,600		3.74	%	4.04	%	0.42	%

¹On tax equivalent basis, a non-GAAP measure.

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For the nine months ended September 30, 2018, a steepening of the Treasury yield curve and higher short term rates, including add-on rates for new loan production, contributed to the 5 basis point improvement in net interest margin, compared to the first nine months of 2017. Our loan and debt securities yields were 15 and 22 basis points higher, respectively, and our yield on federal funds sold and other investments was 124 basis points higher, compared to results for the nine months ended September 30, 2017. Partially offsetting, the rate for interest bearing funding was higher by 30 basis points, when comparing the same nine-month periods for 2018 and 2017.

Total average loans increased $601.2 million or 18% for third quarter 2018 compared to third quarter 2017, and increased $60.1 million or 2% from second quarter 2018. Average debt securities decreased $66.3 million or 5% for third quarter 2018 year over year and were $40.2 million or 3% lower from 2018’s second quarter. For the nine months ended September 30, 2018, average loans were $744.2 million or 23% higher and debt securities increased $28.7 million or 2%, respectively, compared to the nine months ended September 30, 2017.

Average loans as a percentage of average earning assets totaled 74.6% during the third quarter of 2018, compared to 73.7% during the second quarter of 2018 and 70.0% a year ago. As average total loans as a percentage of earning assets increased, the mix of loans has remained fairly stable, with volumes related to commercial real estate representing 47.5% of total loans at September 30, 2018, compared to 47.9% at December 31, 2017 and 47.3% at September 30, 2017 (see “Loan Portfolio”).

Loan production is detailed in the following table for the periods specified:

	Third		Second		Third		Nine Months Ended
	Quarter		Quarter		Quarter		September 30,
(In thousands)	2018		2018		2017		2018		2017
Commercial pipeline	$	196,512	$	194,928	$	155,355	$	196,512	$	155,355
Commercial loans closed	130,989		140,437		146,121		393,490		350,887
Residential pipeline	$	58,928	$	63,714	$	63,960	$	58,928	$	63,960
Residential loans retained	78,663		75,036		73,611		232,752		237,027
Residential loans sold	55,848		52,175		103,841		157,710		189,675
Consumer and small business pipeline	$	59,715	$	52,915	$	47,002	$	59,715	$	47,002
Consumer and small business originations	125,920		104,910		86,954		329,211		274,358

Consumer and small business originations reached $126 million during the third quarter of 2018 and $329 million year to date for 2018, and commercial loans closed totaled $131 million for the third quarter of 2018 and $393 million year to date for 2018. The increase in consumer and small business loan originations is attributable, in part, to our commitment to serving small businesses and the expansion of our Small Business Administration ("SBA") program. Closed residential loans during the quarter and year to date for 2018 totaled $135 million and $390 million, respectively, reflecting continued strong performance. A $19.5 million fixed rate residential loan pool, with a weighted average yield of 4.15% and average FICO score of 775, was acquired during the third quarter of 2018 and included in residential loans retained.

Pipelines (loans in underwriting and approval or approved and not yet closed) remained strong at $197 million in commercial, $59 million in mortgage, and $60 million (a new peak) in consumer and small business at September 30, 2018. Commercial pipelines increased $2 million over June 30, 2018, and were $41 million or 26% higher compared to September 30, 2017. Mortgage pipelines decreased $5 million or 8%, compared to both June 30, 2018 and September 30, 2017. The consumer and small business pipeline increased from June 30, 2018 by $7 million or 13%, and increased from September 30, 2017 by $13 million or 27%.

Loan production remains strong, supported by analytics and expansion of the banking teams, particularly in Tampa, Orlando and South Florida MSAs. In the third quarter of 2018, we added senior leadership in Tampa with the hiring of the former President & CEO of SunTrust for the Tampa MSA. Also, the planned addition of lending personnel from the First Green acquisition is expected to provide growth in the Orlando and South Florida MSAs.

Customer relationship funding is detailed in the following table for the periods specified:

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Customer Relationship Funding
	September 30,			June 30,			March 31,			December 31,		September 30,
(In thousands, except ratios)	2018			2018			2018			2017		2017
Noninterest demand	$	1,488,689		$	1,463,652		$	1,488,261		1,400,227		$	1,284,118
Interest-bearing demand	912,891			976,281			1,015,054			1,050,755		935,097
Money market	1,036,940			1,023,170			1,035,531			931,458		870,788
Savings	451,958			444,736			437,878			434,346		379,499
Time certificates of deposit	753,032			789,601			742,819			775,934		643,098
Total deposits	$	4,643,510		$	4,697,440		4,719,543			4,592,720		$	4,112,600
Customer sweep accounts	$	189,035		$	200,050		173,249			216,094		$	142,153
Total core customer funding1	$	4,079,513		$	4,107,889		4,149,973			4,032,880		$	3,611,655
Noninterest demand deposits as % of total deposits	32.1		%	31.2		%	31.5		%	30.5	%	31.2		%

(1)Total deposits and customer sweep accounts, excluding time certificates of deposit

The Company’s balance sheet continues to be primarily core deposit funded. Core customer funding increased to $4.1 billion at September 30, 2018, a 1% increase from December 31, 2017 and a 13% increase from September 30, 2017. Excluding acquisitions, core customer funding increased by $202 million, or 6%, from one year ago. Seacoast’s weighted average rate paid on total deposits (including noninterest demand deposits) remains low at 0.38% for the nine months ended September 30, 2018, and, despite an increase of 16 basis points from the nine months ended September 30, 2017, we believe reflects the significant value of the deposit franchise.

Short-term borrowings were entirely comprised of sweep repurchase agreements with Seacoast Bank customers at September 30, 2018 and 2017. No federal funds purchased were utilized at September 30, 2018 or 2017. The average rate on customer repurchase accounts was 0.77% for the nine months ended September 30, 2018, compared to 0.42% for the same period during 2017.

FHLB borrowings totaled $261.0 million at September 30, 2018, with an average rate of 1.83% paid during the nine months ended September 30, 2018 . FHLB borrowings averaged $219.7 million for 2018, declining $177.0 million or 44.6%, compared to the nine months ended September 30, 2017. For 2018, average subordinated debt of $70.6 million related to trust preferred securities issued by subsidiary trusts of the Company (including subordinated debt for Grand and BANKshares assumed on July 17, 2015 and October 1, 2014, respectively) carried an average cost of 4.42%.

We have a positive interest rate gap and our net interest margin should benefit from rising interest rates. Further increases in interest rates are likely, and the Company’s asset sensitivity is further enhanced by its low cost deposit portfolio (see “Interest Rate Sensitivity”).

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The following tables detail average balances, net interest income and margin results (on a tax equivalent basis) for the periods presented:  

AVERAGE BALANCES, INTEREST INCOME AND EXPENSES, YIELDS AND RATES¹ 

SEACOAST BANKING CORPORATION OF FLORIDA AND SUBSIDIARIES

	2018																	2017
	Third Quarter							Second Quarter							Third Quarter
	Average					Yield/		Average					Yield/		Average					Yield/
(In thousands, except ratios)	Balance			Interest		Rate		Balance			Interest		Rate		Balance			Interest		Rate
Assets
Earning assets:
Securities:
Taxable	$	1,284,774		$	9,582	2.98	%	$	1,324,280		$	9,389	2.84	%	$	1,356,276		$	8,823	2.60	%
Nontaxable	31,411			283		3.60		32,055			273		3.41		26,256			290		4.42
Total Securities	1,316,185			9,865		3.00		1,356,335			9,662		2.85		1,382,532			9,113		2.64
Federal funds sold and other investments	51,255			634		4.91		49,387			585		4.75		76,773			664		3.43
Loans, net	4,008,527			48,802		4.83		3,948,460			46,549		4.73		3,407,376			40,456		4.70
Total Earning Assets	5,375,967			59,301		4.38		5,354,182			56,796		4.25		4,866,681			50,233		4.10
Allowance for loan losses	(29,259		)					(29,234		)					(26,299		)
Cash and due from banks	110,929							110,549							99,864
Premises and equipment	63,771							64,445							57,023
Intangible assets	165,534							166,393							118,364
Bank owned life insurance	121,952							121,008							95,759
Other assets	94,433							90,692							104,727
Total Assets	$	5,903,327						$	5,878,035						$	5,316,119
Liabilities and Shareholders' Equity
Interest-bearing liabilities:
Interest-bearing demand	$	939,527		$	426	0.18	%	$	996,929		$	492	0.20	%	$	927,278		$	273	0.12	%
Savings	444,935			170		0.15		439,691			118		0.11		377,729			52		0.05
Money market	1,031,960			1,501		0.58		1,027,705			1,378		0.54		870,166			605		0.28
Time deposits	779,608			2,975		1.51		790,404			2,629		1.33		548,092			1,266		0.92
Federal funds purchased and securities sold under agreements to repurchase	204,097			463		0.90		179,540			334		0.75		165,160			204		0.49
Federal Home Loan Bank borrowings	222,315			1,228		2.19		160,846			741		1.85		439,755			1,293		1.17
Other borrowings	70,694			829		4.65		70,623			810		4.60		70,409			637		3.59
Total Interest-Bearing Liabilities	3,693,136			7,592		0.82		3,665,738			6,502		0.71		3,398,589			4,330		0.51
Noninterest demand	1,451,751							1,473,331							1,276,779
Other liabilities	30,150							29,292							52,832
Total Liabilities	5,175,037							5,168,361							4,728,200
Shareholders' equity	728,290							709,674							587,919
Total Liabilities & Equity	$	5,903,327						$	5,878,035						$	5,316,119
Cost of deposits						0.43	%						0.39	%						0.22	%
Interest expense as a % of earning assets						0.56	%						0.49	%						0.35	%
Net interest income as a % of earning assets				$	51,709	3.82	%				$	50,294	3.77	%				$	45,903	3.74	%

¹On a fully taxable equivalent basis, a non-GAAP measure, as defined (see Non-GAAP measure below). All yields and rates have been computed on an annual basis using amortized cost. Fees on loans have been included in interest on loans. Nonaccrual loans are included in loan balances.

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				2018							2017
	Year to Date							Year to Date
	Average					Yield/		Average					Yield/
(In thousands, except ratios)	Balance			Interest		Rate		Balance			Interest		Rate
Assets
Earning assets:
Securities:
Taxable	$	1,323,164		$	28,332	2.85	%	$	1,299,128		$	25,289	2.60	%
Nontaxable	32,031			863		3.59		27,388			1,047		5.10
Total Securities	1,355,195			29,195		2.87		1,326,516			26,336		2.65
Federal funds sold and other investments	52,253			1,835		4.70		68,766			1,778		3.46
Loans, net	3,943,617			140,635		4.77		3,199,408			110,668		4.62
Total Earning Assets	5,351,065			171,665		4.29		4,594,690			138,782		4.04
Allowance for loan losses	(28,660		)					(25,211		)
Cash and due from banks	111,781							101,858
Premises and equipment	64,708							58,401
Intangible assets	166,348							104,079
Bank owned life insurance	121,742							89,401
Other assets	90,888							111,661
Total Assets	$	5,877,872						$	5,034,879
Liabilities and Shareholders' Equity
Interest-bearing liabilities:
Interest-bearing demand	$	979,148		$	1,368	0.19	%	$	904,175		$	698	0.10	%
Savings	440,054			392		0.12		370,145			147		0.05
Money market	1,012,259			3,863		0.51		847,705			1,563		0.25
Time deposits	782,283			7,783		1.33		443,416			2,646		0.80
Federal funds purchased and securities sold under agreements to repurchase	186,643			1,071		0.77		173,601			551		0.42
Federal Home Loan Bank borrowings	219,652			2,999		1.83		396,610			2,775		0.94
Other borrowings	70,623			2,333		4.42		70,342			1,802		3.43
Total Interest-Bearing Liabilities	3,690,662			19,809		0.72		3,205,994			10,182		0.42
Noninterest demand	1,446,488							1,248,290
Other liabilities	29,533							39,414
Total Liabilities	5,166,683							4,493,698
Shareholders' equity	711,189							541,181
Total Liabilities & Equity	$	5,877,872						$	5,034,879
Cost of deposits						0.38	%						0.22	%
Interest expense as a % of earning assets						0.49	%						0.30	%
Net interest income as a % of earning assets				$	151,856	3.79	%				$	128,600	3.74	%

(1) On a fully taxable equivalent basis, a non-GAAP measure, as defined (see Non-GAAP measure below). All yields and rates have been computed on an annual basis using amortized cost. Fees on loans have been included in interest on loans. Nonaccrual loans are included in loan balances.

Taxable Equivalent Measure

Fully taxable equivalent net interest income and net interest margin is a common term and measure used in the banking industry but is not a term used under GAAP. We believe that these presentations of tax equivalent net interest income and tax equivalent net interest margin aid in the comparability of net interest income arising from both taxable and tax-exempt sources over the periods presented. We further believe these non-GAAP measures enhance investors’ understanding of the Company’s business and performance, and facilitate an understanding of performance trends and comparisons with the performance of other financial

38

institutions. The limitations associated with these measures are the risk that persons might disagree as to the appropriateness of items comprising these measures and that different companies might calculate these measures differently, including as a result of using different assumed tax rates. These disclosures should not be considered as an alternative to GAAP. The following information is provided to reconcile GAAP measures and tax equivalent net interest income and net interest margin on a tax equivalent basis.

	Third			Second			Third			Nine Months Ended
	Quarter			Quarter			Quarter			September 30,
(In thousands, except ratios)	2018			2018			2017			2018			2017
Nontaxable interest income adjustment	$	147		$	87		$	154		$	325		$	529
Tax Rate	21		%	21		%	35		%	21		%	35		%
Net interest income (TE)	$	51,709		$	50,294		$	45,903		$	151,856		$	128,600
Total net interest income (not TE)	51,562			50,207			45,749			151,531			128,070
Net interest margin (TE)	3.82		%	3.77		%	3.74		%	3.79		%	3.74		%
Net interest margin (not TE)	3.81			3.76			3.73			3.79			3.73

TE = Tax Equivalent

Noninterest Income

Noninterest income totaled $12.3 million for the third quarter of 2018, a decrease of $0.4 million or 3% compared to the second quarter of 2018 and an increase of $0.9 million or 7% from the third quarter of 2017. For the nine months ended September 30, 2018, noninterest income totaled $37.3 million, 17% higher than the nine months ended September 30, 2017. Results for the nine months reflect growth in deposits and increased customer engagement, resulting in revenue improvement in nearly every category. Only mortgage banking fees were lower during the nine months, by $1.1 million, with the prior year benefiting from a larger portfolio sale of $57.9 million that added $0.8 million to mortgage banking fees in the third quarter of 2017. For the nine months ended September 30, 2018, noninterest income (excluding securities losses) accounted for 19.8% of total revenue (net interest income plus noninterest income, excluding securities losses), compared to 19.9% for the nine months ended September 30, 2017.

Noninterest income for the third and second quarters of 2018, compared to the third quarter of 2017, and for the nine months ended September 30, 2018 and 2017 is detailed as follows:

	Third			Second			Third			Nine months ended
	Quarter			Quarter			Quarter			September 30,
(In thousands)	2018			2018			2017			2018			2017
Service charges on deposit accounts	$	2,833		$	2,674		$	2,626		$	8,179		$	7,483
Trust fees	1,083			1,039			967			3,143			2,764
Mortgage banking fees	1,135			1,336			2,138			3,873			4,962
Brokerage commissions and fees	444			461			351			1,264			1,079
Marine finance fees	194			446			137			1,213			597
Interchange income	3,119			3,076			2,582			9,137			7,747
BOLI income	1,078			1,066			836			3,200			2,326
Other income	2,453			2,671			1,844			7,497			4,895
	12,339			12,769			11,481			37,506			31,853
Securities gains (losses), net	(48		)	(48		)	(47		)	(198		)	(26		)
Total	$	12,291		$	12,721		$	11,434		$	37,308		$	31,827

For the third quarter of 2018 and nine months ended September 30, 2018, most categories of service fee income showed year over year growth. Service charges on deposit accounts increased 9.3% and interchange income improved 17.9% for the nine months ended September 30, 2018, compared to prior year. These increases reflect continued strength in deepening relationships with new and existing customers and benefits from acquisition activity. Overdraft fees represented 54% of total service charges on deposits during the nine months ended September 30, 2018, versus 57% for all of 2017. The increase in interchange revenue reflects higher business volumes transacted.

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Wealth management, including brokerage commissions and fees, and trust fees, continued to rise during the third quarter of 2018, increasing 1.8% from second quarter 2018, and for the nine months ended September 30, 2018, increased 14.7% compared to the same period in 2017. Trust fees increased 13.7% and brokerage commissions and fees were 17.1% higher for the nine months, year over year. This increase is the result of a growing sales and support team, industry leading products including digital tools, and the benefit of direct referrals from the branches and lending network. Our Wealth Management team added almost $100 million in new assets under management during the nine months ended September 30, 2018, and we expect wealth management revenues to continue to grow over time.

Mortgage production was higher during the nine months ended September 30, 2018 compared to 2017’s first nine months (see “Loan Portfolio”), and the amount of loans sold from that production was also higher, but spreads were narrower. The sale of $57.9 million of seasoned conforming mortgages during the third quarter of 2017 generated $0.8 million in incremental gains, and contributed to the overall decrease in mortgage banking revenue of $1.1 million or 21.9% for the nine months ended September 30, 2018, compared to the nine months ended September 30, 2017. Originated residential mortgage loans are processed by commissioned employees of Seacoast, with many mortgage loans referred by the Company’s branch personnel.

Marine finance revenue was higher for 2018, increasing 41.6% and 103.2%, respectively, for the third quarter of 2018 and nine months ended September 30, 2018, compared to the same periods in 2017. Continued demand for marine vessel financing and a larger portion of originations being sold were primary contributors to the improvement. In addition to our principal office in Ft. Lauderdale, Florida, we continue to use third party independent contractors in Texas and on the west coast of the United States to assist in generating marine loans.

BOLI income was significantly higher for the third quarter of 2018, up 28.9% year over year, and up 37.6% for the nine months ended September 30, 2018, primarily the result of additions during 2017. At September 30, 2018, the average balance increased 36.2% compared to the nine months ended September 30, 2017.

Other income was 53.2% higher year over year for the nine months ended September 30, 2018. Of the increase of $2.6 million, continued progress by our Small Business Administration (“SBA”) lending group generated incremental fees of $2.0 million for 2018 year to date, and additional income of $0.4 million was distributed from Community Reinvestment Act ("CRA") investments. A general increase in other fee categories also occurred, including wire transfer fees, check cashing fees, and other miscellaneous fees.

Noninterest Expenses

Noninterest expenses for the third quarter of 2018 totaled $37.4 million, increasing $3.0 million or 8.8% compared to third quarter 2017, and were $2.1 million or 1.9% higher for the nine months ended September 30, 2018, compared to 2017. Noninterest expenses for the third and second quarters of 2018, compared to third quarter 2017, and the nine months ended September 30, 2018 and 2017, is detailed as follows:

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	Third			Second			Third			Nine Months Ended
	Quarter			Quarter			Quarter			September 30,
(In thousands, except ratios)	2018			2018			2017			2018			2017
Noninterest expense
Salaries and wages	$	17,129		$	16,429		$	15,627		$	48,939		$	49,371
Employee benefits	3,205			3,034			2,917			9,320			8,920
Outsourced data processing costs	3,493			3,393			3,231			10,565			9,956
Telephone/data lines	624			643			573			1,879			1,753
Occupancy	3,214			3,316			2,447			9,647			10,025
Furniture and equipment	1,367			1,468			1,191			4,292			4,261
Marketing	1,139			1,344			1,298			3,735			3,294
Legal and professional fees	2,019			2,301			2,560			6,293			7,968
FDIC assessments	431			595			548			1,624			1,768
Amortization of intangibles	1,004			1,004			839			2,997			2,397
Foreclosed property expense and net (gain)/loss on sale	(136		)	405			(297		)	461			(293		)
Other	3,910			4,314			3,427			13,057			11,312
TOTAL	$	37,399		$	38,246		$	34,361		$	112,809		$	110,732
Efficiency ratio1	57.0		%	58.4		%	58.9		%	57.7		%	67.7		%

¹Efficiency ratio is defined as (noninterest expense less foreclosed property expense and amortization of intangibles) divided by net operating revenue (net interest income on a fully tax equivalent basis plus noninterest income excluding securities gains)

For 2018, salaries and wages totaled $15.4 million for the first quarter, $16.4 million for the second quarter, $17.1 million for the third quarter, and aggregated to$48.9 million for the nine months ended September 30, 2018. Salaries and wages were $0.4 million lower year over year, compared to the nine months ended September 30, 2017. The increase in salaries and wagesfor third quarter 2018 compared to second quarter 2018 was the result of continued investments in talent, including the hiring of a new senior leadership position, a Market President and Head of Commercial Lending for the Tampa market. We believe the Tampa, Florida market offers a significant opportunity for growth. During the second quarter 2018, we also acquired two commercial banking team leaders, four commercial bankers, and made investments in talent to support scaling the organization prudently. We also granted 191,000 restricted shares during the second quarter of 2018, along with performance awards for up to an additional 356,000 shares upon meeting certain performance criteria.  All were granted deep into the organization, with the goal of providing meaningful value to our associates for achieving our target objectives. Base salaries were $5.0 million or 13% higher for the first nine months of 2018 compared to a year ago, reflecting our investment in talent and the full impact of additional personnel retained as part of the 2017 acquisitions of GulfShore, NorthStar and PBCB. Improved revenue generation and lending production, and expectations for performance results in 2018, among other factors, resulted in commissions, sales and equity award expense (aggregated) that were $2.1 million higher for the nine months ended September 30, 2018, compared to the first nine months of 2017. Severance costs and cash incentives decreased $1.9 million and $2.9 million, respectively, compared to the nine months ended September 30, 2017, reflecting the impact of merger activities and executive realignment a year ago. Deferred loan origination costs (a contra expense), increased $2.8 million year over year, reflecting a greater number of loans produced during the first nine months of 2018, versus 2017.

Seacoast Bank utilizes third parties for its core data processing systems and outsourced data processing costs are directly related to the number of transactions processed. Outsourced data processing costs totaled $3.7 million, $3.4 million and $3.5 million for the first, second and third quarters of 2018, respectively, totaling $10.6 million for the nine months ended September 30, 2018, an increase of $0.6 million or 6.1% from the first nine months of 2017. The primary cause for the increase year over year was software licensing and maintenance costs aggregating to $0.7 million.

Total occupancy, furniture and equipment expenses for the first, second and third quarters of 2018 totaled $4.6 million, $4.8 million and $4.6 million, respectively, and were $13.9 million for the nine months ended September 30, 2018. These costs were $0.3 million lower compared to the nine months ended September 30, 2017. Asset write-offs related to branch closures were a primary contributor to the reduction in expense, and were $1.8 million lower for the nine months ended September 30, 2018, compared to a year ago. We believe branches are still valuable to our customers for more complex transactions, but simple tasks, such as depositing and withdrawing funds, are rapidly migrating to the digital world. Our goal at the beginning of 2017 was to close 20% of our locations over the next 24 to 36 months. During 2018 we consolidated two office locations in the first quarter, and none in the second and third quarters, compared to five locations for the nine months ended September 30, 2017. Partially offsetting were lease payments

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and depreciation expense, each higher by $0.7 million, respectively, for the first nine months of 2018 compared to the first nine months of 2017. Upon acquiring First Green in October 2018, we consolidated five banking locations in alignment with our Vision 2020 objective of reducing our footprint.

For the first, second and third quarters of 2018, marketing expenses (including sales promotion costs, ad agency production and printing costs, digital, newspaper, TV and radio advertising, and other public relations costs) totaled $1.3 million, $1.3 million and $1.1 million, respectively, and aggregated to $3.7 million for the nine months ended September 30, 2018, increasing by $0.4 million or 13.4% compared to prior year. Costs associated with direct mail, corporate sponsorships, and local market corporate events were the largest contributors to the $0.6 million increase, and were incurred to solidify customer acquisition and corporate brand awareness.

Legal and professional fees for the first, second and third quarters of 2018 were $2.0 million, $2.3 million, and $2.0 million, respectively, and aggregated to $6.3 million for the nine months ended September 30, 2018, a decrease of $1.7 million or 21% compared to the prior year.

For the nine months ended September 30, 2018, foreclosed property expense and net losses on the sale of OREO properties totaled $0.5 million compared to a gain in the prior period of $0.3 million (see “Nonperforming Loans, Troubled Debt Restructurings, Other Real Estate Owned, and Credit Quality”).

Other expense totaled $4.8 million, $4.3 million and $3.9 million for the first, second and third quarters of 2018, respectively, and increased $1.7 million or 15.4% for the nine months ended September 30, 2018, compared to the nine months ended September 30, 2017. Primary contributors to the $1.7 million increase were SBA and marine lending fees (up $0.4 million compared to a year ago), losses and charge-offs related to robbery (up $0.2 million), loan servicing costs (up $0.3 million), director fees (up $0.2 million), and other higher expenses related to the growth of the business.

	Third			Second			Third			Nine Months Ended
	Quarter			Quarter			Quarter			September 30,
(In thousands, except ratios)	2018			2018			2017			2018			2017
Noninterest expense, as reported	$	37,399		$	38,246		$	34,361		$	112,809		$	110,732
Merger related charges	482			695			491			1,647			6,105
Amortization of intangibles	1,004			1,004			839			2,997			2,397
Business continuity expenses - Hurricane Irma	—			—			352			—			352
Branch reductions and other expense initiatives1	—			—			(127		)	—			4,321
Total adjustments	1,486			1,699			1,555			4,644			13,175
Adjusted noninterest expense2	$	35,913		$	36,547		$	32,806		$	108,165		$	97,557
Adjusted efficiency ratio 2,3	56.3		%	57.3		%	57.7		%	56.9		%	61.0		%

¹Includes severance payments, contract termination costs, disposition of branch premises and fixed assets, and other costs to accomplish branch consolidation and other expense reduction strategies.

²Non-GAAP measure.

³Efficiency ratio is defined as (noninterest expense less foreclosed property expense and amortization of intangibles) divided

by the net operating revenue (net interest on a fully tax equivalent basis plus noninterest income excluding securities gains).

Merger related charges were lower for 2018, totaling $0.5 million and $1.6 million for the third quarter and nine months ended September 30, 2018, respectively, compared to $0.5 million for the third quarter and $6.1 million for the nine months ended September 30, 2017, with most expenditures associated with either the First Green or GulfShore acquisitions in each year. In addition, branch consolidation and other expense initiatives for the nine months ended September 30, 2017 totaled $4.3 million, including costs in the first quarter of 2017 related to a realignment of the executive team structure and expenses associated with a reduction in workforce initiative. Business continuity expenses related to Hurricane Irma were also incremental in 2017, adding $0.4 million. Adjusted noninterest expense² (a non-GAAP measure, see table below for a reconciliation to noninterest expense, the most comparable GAAP number) was $35.9 million and $108.2 million for the third quarter and nine months ended September 30, 2018, respectively, decreasing $0.6 million or 1.7% compared to the second quarter of 2018, increasing $3.1 million or 9.5% compared to the prior year’s third quarter, and was $10.6 million or 10.9% higher for the nine months ended September 30, 2018, compared to prior year.

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Seacoast management expects its efficiency ratios to continue to improve. The Company anticipates that the improvements to its processes and tools for commercial banking, investment in talent and tools for our enterprise risk management and technology functions, and further upgrades to our analytics and digital marketing capabilities, will help scale our organization appropriately, and will continue to deliver sustainable earnings growth prospectively. In the third quarter of 2018 we launched a large-scale initiative to implement a fully digital loan origination platform across all business units. This follows our successful roll-out of our fully digital mortgage banking origination platform. Our expense control initiative launched at the end of the second quarter of 2018, designed to reduce overhead and become more streamlined in our approach, will continue into 2019. We are targeting $7 million in expense reductions in 2019 which will be reinvested in expanding bankers in Tampa and South Florida, installation of the fully digital platform, and development of digital direct fulfillment for small business lending. These investments will support growth and greater operating leverage into 2020.

Income Taxes

The Tax Reform Act, enacted by the U.S. Congress and signed by the President of the United States near the end of December 2017, had a significant impact on our deferred tax position and provision for taxes at year-end 2017. The new legislation resulted in additional provisioning of $8.6 million during the fourth quarter of 2017 to reflect the decline in value of net deferred tax assets.

For the nine months ended September 30, 2018 and 2017, provision for income taxes totaled $15.3 million and $16.0 million, respectively. The Company’s overall effective tax rate decreased to 23.0% for the first nine months of 2018 from 34.9% for the first nine months a year ago, reflecting the benefit of a lower federal rate the legislation provides, offset by a $248,000 write down of deferred tax assets arising from measurement period adjustments on a 2017 bank acquisition recorded in the first quarter of 2018. Additionally, discrete benefits related to share-based compensation provided a tax benefit of $732,000 for the nine months ended September 30, 2018, compared to $702,000 for the nine months September 30, 2017.

Management believes all of the future tax benefits of the Company’s deferred tax assets can be realized and no valuation allowance is required.

Explanation of Certain Unaudited Non-GAAP Financial Measures

This report contains financial information determined by methods other than Generally Accepted Accounting Principles (“GAAP”), including adjusted net income, tax equivalent net interest income and margin, and adjusted noninterest expense and efficiency ratios. The most directly comparable GAAP measures are net income, net interest income, net interest margin, noninterest expense, and efficiency ratios. Management uses these non-GAAP financial measures in its analysis of the Company’s performance and believes these presentations provide useful supplemental information, and a clearer understanding of the Company’s performance. The Company believes the non-GAAP measures enhance investors’ understanding of the Company’s business and performance and if not provided would be requested by the investor community. These measures are also useful in understanding performance trends and facilitate comparisons with the performance of other financial institutions. The limitations associated with operating measures are the risk that persons might disagree as to the appropriateness of items comprising these measures and that different companies might calculate these measures differently. The Company provides reconciliations between GAAP and these non-GAAP measures. These disclosures should not be considered an alternative to GAAP.

The following table provides reconciliation between GAAP net income and adjusted net income.

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	Third			Second			Third			Nine Months Ended
	Quarter			Quarter			Quarter			September 30,
(In thousands except per share data)	2018			2018			2017			2018			2017
Net income, as reported:
Net income	$	16,322		$	16,964		$	14,216		$	51,313		$	29,818
Diluted earnings per share	$	0.34		$	0.35		$	0.32		$	1.07		$	0.70
Adjusted net income:
Net income	$	16,322		$	16,964		$	14,216		$	51,313		$	29,818
Security losses, net	48			48			47			198			26
Total adjustments to revenue	48			48			47			198			26
Merger related charges	482			695			491			1,647			6,105
Amortization of intangibles	1,004			1,004			839			2,997			2,397
Business continuity expenses - Hurricane Irma	—			—			352			—			352
Branch reductions and other expense initiatives1	—			—			(127		)	—			4,321
Total adjustments to noninterest expenses	1,486			1,699			1,555			4,644			13,175
Effective tax rate on adjustments	(230		)	(443		)	(673		)	(1,211		)	(4,939		)
Effect of change in corporate tax rate	—			—			—			248			—
Adjusted net income	$	17,626		$	18,268		$	15,145		$	55,192		$	38,080
Adjusted diluted earnings per share	$	0.37		$	0.38		$	0.35		$	1.15		$	0.90

¹ Includes severance, contract termination costs, disposition of branch, premises and fixed assets, and other costs to effect our branch consolidation and other expense reduction strategies.

Financial Condition

Total assets increased $120.8 million or 2.1% from December 31, 2017, benefiting from new relationships derived through our recent acquisitions of NorthStar in October 2017 and PBCB in November of 2017, along with organic growth.

Securities

Information related to maturities, carrying values and fair value of the Company’s debt securities is set forth in “Note D – Securities” of the Company’s condensed consolidated financial statements.

At September 30, 2018, the Company had $923.2 million in debt securities available for sale, and $367.4 million in debt securities held to maturity. The Company's total debt securities portfolio decreased $75.7 million or 5.5% from December 31, 2017. Given the current interest rate environment, the securities portfolio is being used as a liquidity source to fund loan growth. Debt security purchases for the nine months ended September 30, 2018 aggregated to $105 million, and were less than maturities (principally pay-downs) over the same period. Debt security purchases during the first, second, third and fourth quarters of 2017 totaled $43 million, $213 million, $35 million and $220 million, respectively. Securities acquired from GulfShore in the second quarter of 2017 were nominal, and securities acquired from NorthStar and PBCB aggregated to $78.2 million. Funding for investments in 2017 was derived from liquidity, both legacy and that acquired in mergers, and increases in funding from our core customer deposit base and FHLB borrowings.

During the nine months ended September 30, 2018, no sales of debt securities were transacted. During the nine months ended September 30, 2017, sales of securities resulted in proceeds of $7.5 million (including net losses of $26,000). Management believes the securities sold had minimal opportunity to further increase in value.

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Debt securities are generally acquired which return principal monthly. During 2018, maturities (primarily comprised of pay-downs) totaled $158 million. During the nine months ended September 30, 2017, maturities (primarily pay-downs) totaled $240 million. Securities that are fixed rate comprise 62% of the total debt securities portfolio, with remaining securities in the portfolio adjustable rate, or 38% of the total portfolio. The modified duration of the investment portfolio at September 30, 2018 was 3.6 years, compared to 4.4 years at December 31, 2017.

At September 30, 2018, available for sale debt securities had gross unrealized losses of $26.4 million and gross unrealized gains of $1.6 million, compared to gross unrealized losses of $8.5 million and gross unrealized gains of $4.2 million at December 31, 2017. All of the debt securities with unrealized losses are reviewed for other-than-temporary impairment at least quarterly. As a result of these reviews it was determined that the debt securities with unrealized losses are not other than temporarily impaired and the Company has the intent and ability to retain these debt securities until recovery over the periods presented (see additional discussion under “Other Fair Value Measurements” and “Other than Temporary Impairment of Securities” in “Critical Accounting Policies and Estimates”).

Company management considers the overall quality of the debt securities portfolio to be high. The Company has no exposure to debt securities with subprime collateral. The Company does not have an investment position in trust preferred securities. The credit quality of the Company’s debt securities holdings are primarily investment grade.

Loan Portfolio

Total loans (net of unearned income and excluding the allowance for loan losses) were $4.1 billion at September 30, 2018, $241.9 million or 6.3% more than at December 31, 2017. During 2018, loan growth has continued across all business lines. For 2018, $393.5 million in commercial and commercial real estate loans were originated compared to $350.9 million for the nine months ended September 30, 2017. Our loan pipeline for commercial and commercial real estate loans totaled $196.5 million at September 30, 2018, a record high. The Company also closed $390 million in residential loans during 2018, including a $19.5 million residential loan pool acquired during the third quarter of 2018. In comparison, residential loans totaling $426.7 million were closed for the first nine months of 2017. The residential mortgage pipeline at September 30, 2018 totaled $58.9 million, versus $48.8 million at December 31, 2017. Consumer and small business originations have totaled $329.2 million since year end 2017, higher by $54.9 million compared to the nine months ended September 30, 2017, and the pipeline for these loans was $59.7 million compared to $38.8 million at December 31, 2017.

The NorthStar and PBCB acquisitions during 2017 contributed $136.8 million and $270.3 million in loans, respectively. During the third quarter of 2018, a $19.5 million pool of whole loan fixed rate mortgages with a weighted average yield of 4.15% and average FICO score of 775 was acquired and added to the portfolio. During the first quarter of 2017, a $43 million pool of whole loan adjustable rate mortgages with a weighted average yield of 3.20% and average FICO score of 751 was acquired and added to the portfolio. Also in 2017, the Company sold two seasoned mortgage portfolio pools summing to $86.4 million ($58.0 million in the third quarter of 2017 and $28.4 million in the fourth quarter of 2017). The mortgage pools sold were believed to have reached their peak in market value. Success in commercial lending through our Accelerate commercial banking model has increased loan growth. Analytics and digital marketing have further fueled loan growth in the consumer and small business channels.

The Company expects the First Green acquisition on October 19, 2018 to amplify loan growth during the fourth quarter of 2018, and enhance opportunities for all types of lending in 2019. We will continue to expand our business banking teams, adding new, seasoned, commercial loan officers where market opportunities arise, and improving service through electronic and digital means. We believe that achieving our loan growth objectives, together with the prudent management of credit risk will provide us with the potential to make further, meaningful improvements to our earnings in the final quarter of 2018, and into 2019.

Our strong growth is accompanied by sound risk management procedures. Our lending policies contain numerous guardrails that pertain to lending by type of collateral and purpose, along with limits regarding loan concentrations and the dollar amount (size) of loans. Our exposure to commercial real estate lending is significantly below regulatory limits (see “Loan Concentrations”).

The following tables detail loan portfolio composition at September 30, 2018 and December 31, 2017 for portfolio loans, purchased credit impaired loans (“PCI”) and purchased unimpaired loans (“PUL”) as defined in Note E-Loans. 

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	September 30, 2018
(In thousands)	Portfolio Loans		PCI Loans		PULs		Total
Construction and land development	$	289,449	$	129	$	86,679	$	376,257
Commercial real estate 1	1,357,721		10,838		358,140		1,726,699
Residential real estate	994,575		1,356		156,709		1,152,640
Commercial and financial	554,627		728		55,600		610,955
Consumer	187,199		—		5,573		192,772
NET LOAN BALANCES 2	$	3,383,571	$	13,051	$	662,701	$	4,059,323

	December 31, 2017
(In thousands)	Portfolio Loans		PCI Loans		PULs		Total
Construction and land development	$	215,315	$	1,121	$	126,689	$	343,125
Commercial real estate 1	1,170,618		9,776		459,598		1,639,992
Residential real estate	845,420		5,626		187,764		1,038,810
Commercial and financial	512,430		894		92,690		606,014
Consumer	178,826		—		10,610		189,436
NET LOAN BALANCES 2	$	2,922,609	$	17,417	$	877,351	$	3,817,377

¹Commercial real estate includes owner-occupied balances of $829.4 million and $791.4 million for September 30, 2018 and December 31, 2017, respectively.

²Net loan balances at September 30, 2018 and December 31, 2017 include deferred costs of $15.9 million and $12.9 million, respectively.

Commercial real estate loans were higher by $86.7 million totaling $1.7 billion at September 30, 2018, compared to December 31, 2017. Owner occupied loans represent $829.4 million or 70.9% of the commercial real estate portfolio. Office building loans of $542.7 million or 31.4% of commercial real estate mortgages comprise our largest concentration, with a substantial portion owner-occupied. Portfolio composition also includes lending for retail trade, industrial, health care, churches and educational facilities, recreation, multifamily, lodging, agriculture, convenience stores, marinas, and other types of real estate.

The Company’s ten largest commercial and commercial real estate funded and unfunded loan relationships at September 30, 2018 aggregated to $190.6 million (versus $169.7 million at December 31, 2017), of which $142.7 million was funded. The Company’s 92 commercial and commercial real estate relationships in excess of $5 million totaled $883.4 million, of which $712.5 million was funded at September 30, 2018 (compared to 89 relationships of $803.5 million at December 31, 2017, of which $684.2 million was funded).

Fixed rate and adjustable rate loans secured by commercial real estate, excluding construction loans, totaled approximately $1.4 billion and $347.9 million, respectively, at September 30, 2018, compared to $1.2 billion and $410.0 million, respectively, at December 31, 2017.

Reflecting the impact of organic loan growth and the NorthStar and PBCB loan acquisitions, commercial and financial loans (“C&I”) outstanding at September 30, 2018 increased to $611.0 million, up from $606.0 million at December 31, 2017. Commercial lending activities are directed principally towards businesses whose demand for funds are within the Company’s lending limits, such as small- to medium-sized professional firms, retail and wholesale outlets, and light industrial and manufacturing concerns. Such businesses are smaller and subject to the risks of lending to small- to medium-sized businesses, including, but not limited to, the effects of a downturn in the local economy, possible business failure, and insufficient cash flows.

Residential mortgage loans increased $113.8 million or 11.0% to $1.15 billion as of September 30, 2018, compared to the balance outstanding at December 31, 2017. Substantially all residential originations have been underwritten to conventional loan agency standards, including loans having balances that exceed agency value limitations. At September 30, 2018, approximately $534 million or 46% of the Company’s residential mortgage balances were adjustable 1-4 family mortgage loans (including hybrid adjustable rate mortgages). Fixed rate mortgages totaled approximately $300 million (26% of the residential mortgage portfolio) at September 30, 2018, of which 15- and 30-year mortgages totaled $24 million and $237 million, respectively. Remaining fixed rate balances were comprised of home improvement loans totaling $112 million, most with maturities of 10 years or less and home

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equity lines of credit, primarily floating rates, totaling $246 million at September 30, 2018. In comparison, loans secured by residential properties having fixed rates totaled $247 million at December 31, 2017, with 15- and 30-year fixed rate residential mortgages totaling $22 million and $173 million, respectively, and home equity mortgages and lines of credit totaling $123 million and $233 million, respectively.

The Company also provides consumer loans (including installment loans, loans for automobiles, boats, and other personal, family and household purposes) which increased $3.3 million or 0.0% from December 31, 2017 to total $192.8 million (versus $189.4 million at December 31, 2017). Of the $3.3 million increase, automobile and truck loans, marine loans, and other consumer loans increased $0.6 million, $0.2 million and $0.6 million, respectively.

At September 30, 2018, the Company had unfunded commitments to make loans of $865 million, compared to $808 million at December 31, 2017.

Loan Concentrations

The Company has developed guardrails to manage loan types that are most impacted by stressed market conditions in order to achieve lower levels of credit loss volatility in the future. Outstanding balances for commercial and commercial real estate (“CRE”) loan relationships greater than $10 million totaled $360.0 million and represented 9% of the total portfolio at September 30, 2018.

Concentrations in total construction and land development loans and total CRE loans are maintained well below regulatory limits. Construction and land development and CRE loan concentrations as a percentage of total risk based capital, were stable at 59% and 199%, respectively, at September 30, 2018. Regulatory guidance suggests limits of 100% and 300%, respectively. To determine these ratios, the Company defines CRE in accordance with the guidance on “Concentrations in Commercial Real Estate Lending” (the “Guidance”) issued by the federal bank regulatory agencies in 2006 (and reinforced in 2015), which defines CRE loans as exposures secured by land development and construction, including 1-4 family residential construction, multi-family property, and non-farm nonresidential property where the primary or a significant source of repayment is derived from rental income associated with the property (i.e., loans for which 50 percent or more of the source of repayment comes from third party, non-affiliated, rental income) or the proceeds of the sale, refinancing, or permanent financing of the property. Loans to real estate investment trusts, or “REITs”, and unsecured loans to developers that closely correlate to the inherent risks in CRE markets would also be considered CRE loans under the Guidance. Loans on owner occupied CRE are generally excluded.

Nonperforming Loans, Troubled Debt Restructurings, Other Real Estate Owned, and Credit Quality

Nonperforming assets (“NPAs”) at September 30, 2018 totaled $30.9 million, and were comprised of $19.0 million of nonaccrual portfolio loans, $7.1 million of nonaccrual purchased loans, $0.4 million of non-acquired other real estate owned (“OREO”), $1.2 million of acquired OREO and $3.1 million of branches out of service. Nonaccrual portfolio loans increased $6.6 million compared to December 31, 2017, primarily the result of a transfer of a single credit to nonaccrual status in the second quarter of 2018. NPAs increased from $27.2 million recorded as of December 31, 2017 (comprised of $12.6 million of nonaccrual portfolio loans, $7.0 million of nonaccrual purchased loans, $2.2 million of non-acquired OREO, $1.6 million of acquired OREO, and $3.8 million of branches out of service). At September 30, 2018, approximately 94% of nonaccrual loans were secured with real estate. See the tables below for details about nonaccrual loans. At September 30, 2018, nonaccrual loans were written down by approximately $7.1 million or 21% of the original loan balance (including specific impairment reserves). Since December 31, 2017, OREO amounts related to branches taken out of service that are actively being marketed decreased $0.7 million and OREO for foreclosed properties decreased $2.3 million. During the nine months ended September 30, 2018, a single residence valued at $3.8 million (added to acquired OREO during the first quarter of 2018) was subsequently sold in the third quarter of 2018.

Nonperforming loans to total loans outstanding at September 30, 2018 increased to 0.64% from 0.51% at December 31, 2017.

The Company’s asset mitigation staff handles all foreclosure actions together with outside legal counsel.

The Company pursues loan restructurings in selected cases where it expects to realize better values than may be expected through traditional collection activities. The Company has worked with retail mortgage customers, when possible, to achieve lower payment structures in an effort to avoid foreclosure. TDRs have been a part of the Company’s loss mitigation activities and can include rate reductions, payment extensions and principal deferrals. Company policy requires TDRs that are classified as nonaccrual loans after restructuring remain on nonaccrual until performance can be verified, which usually requires six months of performance under the restructured loan terms. Accruing restructured loans totaled $13.8 million at September 30, 2018, compared to $15.6 million at December 31, 2017. Accruing TDRs are excluded from our nonperforming asset ratios. The table below set forth details related to nonaccrual and accruing restructured loans.

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September 30, 2018	Nonaccrual Loans						Accruing Restructured
(In thousands)	NonCurrent		Performing		Total		Loans
Construction & land development
Residential	$	—	$	—	$	—	$	—
Commercial	67		—		67		18
Individuals	—		147		147		180
	67		147		214		198
Residential real estate mortgages	5,524		7,430		12,954		7,624
Commercial real estate mortgages	2,039		9,469		11,508		5,707
Real estate loans	7,630		17,046		24,676		13,529
Commercial and financial	1,261		25		1,286		—
Consumer	102		76		178		268
	$	8,993	$	17,147	$	26,140	$	13,797

At September 30, 2018 and December 31, 2017, total TDRs (performing and nonperforming) were comprised of the following loans by type of modification:

	September 30, 2018			December 31, 2017
(In thousands)	Number	Amount		Number	Amount
Rate reduction	59	$	11,146	71	$	12,843
Maturity extended with change in terms	47	5,266		51	5,803
Chapter 7 bankruptcies	23	1,437		28	1,812
Not elsewhere classified	10	1,035		11	1,190
	139	$	18,884	161	$	21,648

There were no new TDRs identified during the third quarter. Year to date for 2018, there was one newly identified TDR totaling $0.1 million, compared to $0.1 million for all of 2017. Loan modifications are not reported in calendar years after modification if the loans were modified at an interest rate equal to the yields of new loan originations with comparable risk and the loans are performing based on the terms of the restructuring agreements. No accruing loans that were restructured within the twelve months preceding September 30, 2018 defaulted during the twelve months ended September 30, 2018, or for 2017. A restructured loan is considered in default when it becomes 90 days or more past due under the modified terms, has been transferred to nonaccrual status, or has been transferred to OREO.

At September 30, 2018, loans (excluding PCI) totaling $38.1 million were considered impaired (comprised of total nonaccrual, loans 90 days or more past due, and TDRs) and $6.1 million of the allowance for loan losses was allocated for potential losses on these loans, compared to $30.3 million and $2.4 million, respectively, at December 31, 2017.

In accordance with regulatory reporting requirements, loans are placed on nonaccrual following the Retail Classification of Loan interagency guidance.  Typically loans 90 days or more past due are reviewed for impairment, and if deemed impaired, are placed on nonaccrual.  Once impaired, the current fair market value of the collateral is assessed and a specific reserve and/or charge-off taken. Quarterly thereafter, the loan carrying value is analyzed and any changes are appropriately made as described above.

Cash and Cash Equivalents and Liquidity Risk Management

Cash and cash equivalents (including interest bearing deposits), totaled $105.1 million on a consolidated basis at September 30, 2018, compared to $109.5 million at December 31, 2017.

Liquidity risk involves the risk of being unable to fund assets with the appropriate duration and rate-based liability, as well as the risk of not being able to meet unexpected cash needs. Liquidity planning and management are necessary to ensure the ability to fund operations cost effectively and to meet current and future potential obligations such as loan commitments and unexpected deposit outflows.

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Funding sources primarily include customer-based core deposits, collateral-backed borrowings, cash flows from operations, cash flows from our loan and investment portfolios and asset sales (primarily secondary marketing for residential real estate mortgages and marine financings). Cash flows from operations are a significant component of liquidity risk management and we consider both deposit maturities and the scheduled cash flows from loan and investment maturities and payments when managing risk.

Deposits are also a primary source of liquidity. The stability of this funding source is affected by numerous factors, including returns available to customers on alternative investments, the quality of customer service levels, perception of safety and competitive forces. We routinely use debt securities and loans as collateral for secured borrowings. In the event of severe market disruptions, we have access to secured borrowings through the FHLB and the Federal Reserve Bank of Atlanta under its borrower-in-custody program.

Contractual maturities for assets and liabilities are reviewed to meet current and expected future liquidity requirements. Sources of liquidity, both anticipated and unanticipated, are maintained through a portfolio of high quality marketable assets, such as residential mortgage loans, debt securities held for sale and interest-bearing deposits. The Company is also able to provide short term financing of its activities by selling, under an agreement to repurchase, United States Treasury and Government agency debt securities not pledged to secure public deposits or trust funds. At September 30, 2018, Seacoast Bank had available unsecured lines of $130 million and lines of credit under current lendable collateral value, which are subject to change, of $1.064 billion. Seacoast had $511 million of United States Treasury and Government agency debt securities and mortgage backed debt securities not pledged and available for use under repurchase agreements, and had an additional $591 million in residential and commercial real estate loans available as collateral. In comparison, at December 31, 2017, the Company had available unsecured lines of $95 million and lines of credit of $1.006 billion, and had $455 million of Treasury and Government agency debt securities and mortgage backed debt securities not pledged and available for use under repurchase agreements, as well as an additional $593 million in residential and commercial real estate loans available as collateral.

The Company does not rely on and is not dependent on off-balance sheet financing or significant amounts of wholesale funding. During the nine months ended September 30, 2018, $295.0 million of brokered certificates of deposit (“CDs”) at an average rate of 1.49% matured, and the Company acquired $275.0 million in brokered CDs at a weighted average rate of 1.96%. Of the $275.0 million acquired, $85.0 million matured in the second quarter of 2018, $140.0 million matures in the fourth quarter of 2018, and $50.0 million matures in the first quarter of 2019. Total brokered CDs at September 30, 2018 totaled $192.2 million, compared to $217.4 million at December 31, 2017.

The Company has traditionally relied upon dividends from Seacoast Bank and securities offerings to provide funds to pay the Company’s expenses and to service the Company’s debt. At September 30, 2018, Seacoast Bank can distribute dividends to the Company of approximately $88 million. At September 30, 2018, the Company had cash and cash equivalents at the parent of approximately $48.0 million, compared to $34.4 million at December 31, 2017. The increase includes $21.3 million in cash received in January 2018 from the sale of Visa Class B stock that was recorded in December 2017, offset primarily by taxes associated with the sale.

Deposits and Borrowings

The Company’s balance sheet continues to be primarily core funded.

Total deposits increased $50.8 million or 1.1% to $4.64 billion at September 30, 2018, compared to December 31, 2017. At September 30, 2018, total deposits excluding brokered CDs grew $76.0 million or 1.7% from year-end 2017.

Since December 31, 2017, noninterest bearing demand deposits increased $88.5 million or 6.3% to $1.49 billion, interest bearing deposits (interest bearing demand, savings and money markets deposits) decreased $14.8 million or 0.6% to $2.40 billion, and CDs decreased $22.9 million or 3.0% to $753.0 million. Noninterest demand deposits represent 32% of deposits, compared to 30% at December 31, 2017. Core deposit growth reflects our success in growing households both organically and through acquisitions.

Brokered CDs are the primary contributor to the decrease in CDs since December 31, 2017, lower by $25.2 million or 11.6%. An intentional decrease in higher cost time deposits was recorded over the two years prior to the 2016 and 2017 acquisitions, and was more than offset by increases in low cost or no cost deposits.

Customer repurchase agreements totaled $189.0 million at September 30, 2018, decreasing $27.1 million or 12.5% from December 31, 2017. The repurchase agreements are offered by Seacoast to select customers who wish to sweep excess balances on a daily basis for investment purposes. Public funds comprise a significant amount of the outstanding balance.

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No unsecured federal funds purchased were outstanding at September 30, 2018.

At September 30, 2018 and December 31, 2017, borrowings were comprised of subordinated debt of $70.7 million and $70.5 million, respectively, related to trust preferred securities issued by trusts organized or acquired by the Company, and borrowings from FHLB of $261.0 million and $211.0 million, respectively. At September 30, 2018, our FHLB borrowings were all maturing within 30 days, with the exception of maturities of $3.0 million in April 2019 and $60.0 million in June 2019. The weighted average rate for FHLB funds during the nine months ended September 30, 2018 and 2017 was 1.83% and 0.94%, respectively, and compared to 0.99% for the year ended December 31, 2017. Secured FHLB borrowings are an integral tool in liquidity management for the Company.

The Company has two wholly owned trust subsidiaries, SBCF Capital Trust I and SBCF Statutory Trust II that were both formed in 2005. In 2007, the Company formed an additional wholly owned trust subsidiary, SBCF Statutory Trust III. The 2005 subordinated debt for each trust totaled $20.6 million (aggregating to $41.2 million) and the 2007 subordinated debt totaled $12.4 million. As part of the October 1, 2014, BANKshares acquisition, the Company inherited three junior subordinated debentures totaling $5.2 million, $4.1 million, and $5.2 million, respectively. Also, as part of the Grand acquisition, the Company inherited an additional junior subordinated debenture totaling $7.2 million. The acquired junior subordinated debentures (in accordance with ASU 805 Business Combinations) were recorded at fair value, which collectively is $4.6 million lower than face value at September 30, 2018. This amount is being amortized into interest expense over the acquired subordinated debts’ remaining term to maturity. All trust preferred securities are guaranteed by the Company on a junior subordinated basis.

Under Basel III and Federal Reserve rules, qualified trust preferred securities and other restricted capital elements can be included as Tier 1 capital, within limitations. The Company believes that its trust preferred securities qualify under these capital rules. The weighted average interest rate of our outstanding subordinated debt related to trust preferred securities was 4.42% and 3.43% for the nine months ended September 30, 2018 and 2017, respectively, and compared to 3.47% for the year ended December 31, 2017.

Off-Balance Sheet Transactions

In the normal course of business, we may engage in a variety of financial transactions that, under generally accepted accounting principles, either are not recorded on the balance sheet or are recorded on the balance sheet in amounts that differ from the full contract or notional amounts. These transactions involve varying elements of market, credit and liquidity risk.

Lending commitments include unfunded loan commitments and standby and commercial letters of credit. For loan commitments, the contractual amount of a commitment represents the maximum potential credit risk that could result if the entire commitment had been funded, the borrower had not performed according to the terms of the contract, and no collateral had been provided. A large majority of loan commitments and standby letters of credit expire without being funded, and accordingly, total contractual amounts are not representative of our actual future credit exposure or liquidity requirements. Loan commitments and letters of credit expose the Company to credit risk in the event that the customer draws on the commitment and subsequently fails to perform under the terms of the lending agreement.

For commercial customers, loan commitments generally take the form of revolving credit arrangements. For retail customers, loan commitments generally are lines of credit secured by residential property. These instruments are not recorded on the balance sheet until funds are advanced under the commitment. Loan commitments were $865 million at September 30, 2018 and $808 million at December 31, 2017.

Capital Resources

The Company’s equity capital at September 30, 2018 increased $43.2 million from December 31, 2017 to $732.8 million.

The ratio of shareholders’ equity to period end total assets was 12.36% and 11.87% at September 30, 2018 and December 31, 2017, respectively. The ratio of tangible shareholders’ equity to tangible assets was 9.85% and 9.27% at September 30, 2018 and December 31, 2017, respectively. Equity has increased as a result of earnings retained by the Company.

Activity in shareholders’ equity for the nine months ended September 30, 2018 and 2017 follows:

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(In thousands)	2018			2017
Beginning balance at December 31, 2017 and 2016	$	689,664		$	435,397
Net income	51,313			29,818
Issuance of stock via common stock offering on February 21, 2017	—			55,660
Issuance of stock pursuant to acquisition of GulfShore	—			62,882
Stock compensation (net of Treasury shares acquired)	6,503			4,337
Change in other comprehensive income	(14,649		)	6,347
Ending balance at September 30, 2018 and 2017	$	732,831		$	594,441

Capital ratios are well above regulatory requirements for well-capitalized institutions. Seacoast’s management use of risk-based capital ratios in its analysis of Company’s capital adequacy are “non-GAAP” financial measures. Seacoast management uses these measures to assess the quality of capital and believes that investors may find it useful in their analysis of the Company. The capital measures are not necessarily comparable to similar capital measures that may be presented by other companies (see “Note I – Shareholders’ Equity”).

September 30, 2018:	Seacoast (Consolidated)	Seacoast Bank	Minimum to be Well- Capitalized1
Common equity Tier 1 ratio (CET1)	13.19%	13.65%	6.5%
Tier 1 capital ratio	14.80%	13.65%	8.0%
Total risk-based capital ratio	15.57%	14.42%	10.0%
Tier 1 leverage ratio	11.33%	10.45%	5.0%

¹For subsidiary bank only

The Company’s total risk-based capital ratio was 15.57% at September 30, 2018, an increase from December 31, 2017’s ratio of 14.24%. Higher earnings have been a primary contributor. At September 30, 2018, the Bank’s leverage ratio (Tier 1 capital to adjusted total assets) was 10.45%, compared to 9.72% at December 31, 2017, reflecting earnings during the first quarter.

Accumulated other comprehensive income declined $14.6 million during the nine months ended September 30, 2018 from December 31, 2017, reflecting the impact of higher interest rates on available for sale securities.

The Company and Seacoast Bank are subject to various general regulatory policies and requirements relating to the payment of dividends, including requirements to maintain adequate capital above regulatory minimums. The appropriate federal bank regulatory authority may prohibit the payment of dividends where it has determined that the payment of dividends would be an unsafe or unsound practice. The Company is a legal entity separate and distinct from Seacoast Bank and its other subsidiaries, and the Company’s primary source of cash and liquidity, other than securities offerings and borrowings, is dividends from its bank subsidiary. Without Office of the Comptroller of the Currency (“OCC”) approval, Seacoast Bank can pay $88 million of dividends to the Company.

The OCC and the Federal Reserve have policies that encourage banks and bank holding companies to pay dividends from current earnings, and have the general authority to limit the dividends paid by national banks and bank holding companies, respectively, if such payment may be deemed to constitute an unsafe or unsound practice. If, in the particular circumstances, either of these federal regulators determined that the payment of dividends would constitute an unsafe or unsound banking practice, either the OCC or the Federal Reserve may, among other things, issue a cease and desist order prohibiting the payment of dividends by Seacoast Bank or us, respectively. Under a recently adopted Federal Reserve policy, the board of directors of a bank holding company must consider different factors to ensure that its dividend level is prudent relative to the organization’s financial position and is not based on overly optimistic earnings scenarios such as any potential events that may occur before the payment date that could affect its ability to pay, while still maintaining a strong financial position. As a general matter, the Federal Reserve has indicated that the board of directors of a bank holding company, such as Seacoast, should consult with the Federal Reserve and eliminate, defer, or significantly reduce the bank holding company’s dividends if: (i) its net income available to shareholders for the past four quarters, net of dividends previously paid during that period, is not sufficient to fully fund the dividends; (ii) its prospective rate of earnings retention is not consistent with its capital needs and overall current and prospective financial condition; or (iii) it will not meet, or is in danger of not meeting, its minimum regulatory capital adequacy ratios.

The Company has seven wholly owned trust subsidiaries that have issued trust preferred stock. Trust preferred securities from our acquisitions were recorded at fair value when acquired. All trust preferred securities are guaranteed by the Company on a junior

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subordinated basis. The Federal Reserve’s rules permit qualified trust preferred securities and other restricted capital elements to be included under Basel III capital guidelines, with limitations, and net of goodwill and intangibles. The Company believes that its trust preferred securities qualify under these revised regulatory capital rules and believes that it can treat all $70.7 million of trust preferred securities as Tier 1 capital. For regulatory purposes, the trust preferred securities are added to the Company’s tangible common shareholders’ equity to calculate Tier 1 capital.

The Company’s capital is expected to continue to increase with positive earnings.

Critical Accounting Policies and Estimates

The Company’s consolidated financial statements are prepared in accordance with U.S. generally accepted accounting principles, (“GAAP”), including prevailing practices within the financial services industry. The preparation of consolidated financial statements requires management to make judgments in the application of certain of its accounting policies that involve significant estimates and assumptions. We have established policies and control procedures that are intended to ensure valuation methods are well controlled and applied consistently from period to period. These estimates and assumptions, which may materially affect the reported amounts of certain assets, liabilities, revenues and expenses, are based on information available as of the date of the financial statements, and changes in this information over time and the use of revised estimates and assumptions could materially affect amounts reported in subsequent financial statements. Management, after consultation with the Company’s Audit Committee, believes the most critical accounting estimates and assumptions that involve the most difficult, subjective and complex assessments are:

• the allowance and the provision for loan losses;

• acquisition accounting and purchased loans;

• intangible assets and impairment testing;

• other fair value adjustments;

• other than temporary impairment of debt securities;

• realization of deferred tax assets; and

• contingent liabilities.

The following is a discussion of the critical accounting policies intended to facilitate a reader’s understanding of the judgments, estimates and assumptions underlying these accounting policies and the possible or likely events or uncertainties known to us that could have a material effect on our reported financial information.

Allowance and Provision for Loan Losses – Critical Accounting Policies and Estimates

Management determines the provision for loan losses by continuously analyzing and monitoring delinquencies, nonperforming loans levels and the outstanding balances for each loan category, as well as the amount of net charge-offs, for estimating losses inherent in its portfolio. While the Company’s policies and procedures used to estimate the provision for loan losses charged to operations are considered adequate by management, factors beyond the control of the Company, such as general economic conditions, both locally and nationally, make management’s judgment as to the adequacy of the provision and allowance for loan losses approximate and imprecise (see “Nonperforming Assets”).

The provision for loan losses is the result of a detailed analysis estimating for probable loan losses. The analysis includes the evaluation of impaired and purchased credit impaired loans as prescribed under FASB Accounting Standards Codification (“ASC”) 310, Receivables as well as an analysis of homogeneous loan pools not individually evaluated as prescribed under ASC 450, Contingencies. For the nine months ended September 30, 2018 and 2017, the Company recorded provision for loan losses of $9.4 million and $3.4 million, respectively. The provision for loan losses for the third quarter of 2018 was $5.8 million, compared to $2.5 million for the second quarter of 2018, and compared to $0.7 million for the third quarter of 2017. A $3.1 million increase in provision during the third quarter of 2018 for a single impaired commercial real estate loan, originated in 2007, and discussed last quarter upon the loan moving to nonaccrual status, as well as the effects of portfolio growth, were primary causes for the increase in provision for the third quarter of 2018, compared to prior quarters. Net charge-offs during the third quarter and second quarters of 2018 summed to $0.8 million and $1.7 million, respectively, and were near zero for the first quarter of 2018. Net charge-offs for the four most recent quarters averaged 0.10% of outstanding loans. Delinquency trends remain low, with nonperforming loans decreasing $0.1 million during the quarter ended September 30, 2018 (see section titled “Nonperforming Loans, Troubled Debt Restructurings, Other Real Estate Owned, and Credit Quality”).

Management continuously monitors the quality of the Company’s loan portfolio and maintains an allowance for loan losses it believes is sufficient to absorb probable losses incurred in the loan portfolio. The allowance for loan losses increased $6.8 million to $33.9 million at September 30, 2018, compared to $27.1 million at December 31, 2017. The allowance for loan and lease losses

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(“ALLL”) framework has four basic elements: (1) specific allowances for loans individually evaluated for impairment; (2) general allowances for pools of homogeneous non-purchased loans (“portfolio loans”) within the portfolio that have similar risk characteristics, which are not individually evaluated; (3) specific allowances for purchased impaired loans which are individually evaluated based on the loans expected principal and interest cash flows; and (4) general allowances for purchased unimpaired pools of homogeneous loans that have similar risk characteristics. The aggregate of these four components results in our total ALLL.

The first component of the ALLL analysis involves the estimation of an allowance specific to individually evaluated impaired portfolio loans, including accruing and non-accruing restructured commercial and consumer loans. In this process, a specific allowance is established for impaired loans based on an analysis of the most probable sources of repayment, including discounted cash flows, liquidation or operation of the collateral, or the market value of the loan itself. It is the Company’s policy to charge off any portion of the loan deemed uncollectable. Restructured consumer loans are also evaluated and included in this element of the estimate. As of September 30, 2018, the specific allowance related to impaired portfolio loans individually evaluated totaled $6.1 million, including $3.4 million for the single commercial real estate loan discussed previously, and compared to $2.4 million at December 31, 2017. Residential loans that become 90 days past due are placed on nonaccrual and a specific allowance is made for any loan that becomes 120 days past due. Residential loans are subsequently written down if they become 180 days past due and such write-downs are supported by a current appraisal, consistent with current banking regulations.

The second component of the ALLL analysis, the general allowance for homogeneous portfolio loan pools not individually evaluated, is determined by applying factors to pools of loans within the portfolio that have similar risk characteristics. The general allowance is determined by applying a migration model to portfolio segments that allows us to observe performance over time, and to separately analyze sub-segments based on vintage, risk rating, and origination tactics. Adjustments may be made to baseline reserves for some of the loan pools based on an assessment of internal and external influences on credit quality not fully reflected in the historical loss experience. These influences may include elements such as changes in concentration, macroeconomic conditions, and/or recent observable asset quality trends. Our analysis of the adequacy of the allowance for loan losses also takes into account qualitative factors such as credit quality, loan concentrations, internal controls, audit results, staff turnover, local market conditions, employment levels and loan growth.

The third component consists of amounts reserved for purchased credit-impaired loans (PCI). On a quarterly basis, the Company updates the amount of loan principal and interest cash flows expected to be collected, incorporating assumptions regarding default rates, loss severities, the amounts and timing of prepayments and other factors that are reflective of current market conditions. Probable decreases in expected loan cash flows trigger the recognition of impairment, which is then measured as the present value of the expected principal loss plus any related foregone interest cash flows discounted at the pool’s effective interest rate. Impairments that occur after the acquisition date are recognized through the provision for loan losses. Probable and significant increases in expected principal cash flows would first reverse any previously recorded allowance for loan losses; any remaining increases are recognized prospectively as interest income. The impacts of (i) prepayments, (ii) changes in variable interest rates, and (iii) any other changes in the timing of expected cash flows are recognized prospectively as adjustments to interest income. Disposals of loans, which may include sales of loans, receipt of payments in full by the borrower, or foreclosure, result in removal of the loan from the PCI portfolio.

The final component consists of amounts reserved for purchased unimpaired loans (PUL). Loans collectively evaluated for impairment reported at September 30, 2018 include loans acquired from PBCB on November 3, 2017, NorthStar on October 20, 2017, GulfShore on April 7, 2017, BMO Harris on June 3, 2016, Floridian Bank on March 11, 2016, Grand Bank on July 17, 2015 and BANKshares on October 1, 2014 that are not PCI loans. These loans are performing loans recorded at estimated fair value at the acquisition date. These fair value discount amounts are accreted into income over the remaining lives of the related loans on a level yield basis.

The allowance as a percentage of portfolio loans outstanding (excluding PCI and PUL loans) was 0.98% at September 30, 2018, compared to 0.90% at December 31, 2017. The risk profile of the loan portfolio reflects adherence to credit management methodologies to execute a low risk strategic plan for loan growth. New loan production is focused on adjustable rate residential real estate loans, owner-occupied commercial real estate, small business loans for professionals and businesses, as well as consumer lending. Strategies, processes and controls are in place to ensure that new production is well underwritten and maintains a focus on smaller, diversified and lower-risk lending.

Concentrations of credit risk, discussed under the caption “Loan Portfolio” of this discussion and analysis, can affect the level of the allowance and may involve loans to one borrower, an affiliated group of borrowers, borrowers engaged in or dependent upon the same industry, or a group of borrowers whose loans are predicated on the same type of collateral. At September 30, 2018, the Company had $1.328 billion in loans secured by residential real estate and $1.927 billion in loans secured by commercial real

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estate, representing 32.7% and 47.5% of total loans outstanding, respectively. In addition, the Company is subject to a geographic concentration of credit because it primarily operates in central and southeastern Florida.

It is the practice of the Company to ensure that its charge-off policy meets or exceeds regulatory minimums. Losses on unsecured consumer loans are recognized at 90 days past due, compared to the regulatory loss criteria of 120 days. In compliance with Federal Financial Institution Examination Council guidelines, secured consumer loans, including residential real estate, are typically charged-off or charged down between 120 and 180 days past due, depending on the collateral type. Commercial loans and real estate loans are typically placed on nonaccrual status when principal or interest is past due for 90 days or more, unless the loan is both secured by collateral having realizable value sufficient to discharge the debt in-full and the loan is in process of collection. Secured loans may be charged-down to the estimated value of the collateral with previously accrued unpaid interest reversed. Subsequent charge-offs may be required as a result of changes in the market value of collateral or other repayment prospects. Initial charge-off amounts are based on valuation estimates derived from appraisals, broker price opinions, or other market information. Generally, new appraisals are not received until the foreclosure process is completed; however, collateral values are evaluated periodically based on market information and incremental charge-offs are recorded if it is determined that collateral values have declined from their initial estimates.

While it is the Company’s policy to charge off in the current period loans in which a loss is considered probable, there are additional risks of future losses that cannot be quantified precisely or attributed to particular loans or classes of loans. Because these risks include the state of the economy, borrower payment behaviors and local market conditions as well as conditions affecting individual borrowers, management’s judgment of the allowance is necessarily approximate and imprecise. The allowance is also subject to regulatory examinations and determinations as to adequacy, which may take into account such factors as the methodology used to calculate the ALLL and the size of the ALLL in comparison to a group of peer companies identified by the regulatory agencies. Management will consistently evaluate the ALLL methodology and seek to refine and enhance this process as appropriate. As a result, it is likely that the methodology will continue to evolve over time.

Note F to the financial statements (titled “Allowance for Loan Losses”) summarizes the Company’s allocation of the allowance for loan losses to construction and land development loans, commercial and residential estate loans, commercial and financial loans, and consumer loans, and provides more specific detail regarding charge-offs and recoveries for each loan component and the composition of the loan portfolio at September 30, 2018 and December 31, 2017.

Acquisition Accounting and Purchased Loans – Critical Accounting Policies and Estimates

The Company accounts for its acquisitions under ASC Topic 805, Business Combinations, which requires the use of the acquisition method of accounting. All identifiable assets acquired, including loans, are recorded at fair value. No allowance for loan losses related to the acquired loans is recorded on the acquisition date as the fair value of the loans acquired incorporates assumptions regarding credit risk. All loans acquired are recorded at fair value in accordance with the fair value methodology prescribed in ASC Topic 820. The fair value estimates associated with the loans include estimates related to expected prepayments and the amount and timing of expected principal, interest and other cash flows.

Over the life of the PCI loans acquired, the Company continues to estimate cash flows expected to be collected. The Company evaluates at each balance sheet date whether the present value of the acquired loans using the effective interest rates has decreased and if so, recognizes a provision for loan loss in its consolidated statement of income. For any increases in cash flows expected to be collected, the Company adjusts the amount of accretable yield recognized on a prospective basis over the loan’s remaining life.

Intangible Assets and Impairment Testing – Critical Accounting Policies and Estimates

Intangible assets consist of goodwill and core deposit intangibles. Goodwill represents the excess purchase price over the fair value of net assets acquired in business acquisitions. The core deposit intangible represents the excess intangible value of acquired deposit customer relationships as determined by valuation specialists. Core deposit intangibles are amortized on a straight-line basis, and are evaluated for indications of potential impairment at least annually. Goodwill is not amortized but rather is evaluated for impairment on at least an annual basis. We performed an annual impairment test of goodwill as required by FASB ASC 350, Intangibles—Goodwill and Other, in the fourth quarter of 2017. Seacoast conducted the test internally, documenting the impairment test results, and concluded that no impairment occurred. Goodwill was not recorded for the Grand acquisition (on July 17, 2015) that resulted in a bargain purchase gain; however a core deposit intangible was recorded.

Fair value estimates for acquired assets and assumed liabilities are based on the information available, and are subject to change for up to one year after the closing date of the acquisition as additional information relative to closing date fair values becomes available.

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Other Fair Value Measurements – Critical Accounting Policies and Estimates

“As Is” values are used to measure fair market value on impaired loans, OREO and repossessed assets. All impaired loans, OREO and repossessed assets are reviewed quarterly to determine if fair value adjustments are necessary based on known changes in the market and/or the project assumptions.  When necessary, the “As Is” appraised value may be adjusted based on more recent appraisal assumptions received by the Company on other similar properties, the tax assessed market value, comparative sales and/or an internal valuation. Collateral dependent impaired loans are loans that are solely dependent on the liquidation of the collateral or operation of the collateral for repayment.  If an updated assessment is deemed necessary and an internal valuation cannot be made, an external “As Is” appraisal will be requested. Upon receipt of the “As Is” appraisal a charge-off is recognized for the difference between the loan amount and its current fair market value.

The fair value of the available for sale securities portfolio at September 30, 2018 was less than historical amortized cost, producing net unrealized losses of $24.8 million that have been included in other comprehensive income (loss) as a component of shareholders’ equity (net of taxes). The Company made no change to the valuation techniques used to determine the fair values of securities during 2018 and 2017. The fair value of each security available for sale was obtained from independent pricing sources utilized by many financial institutions or from dealer quotes. The fair value of many state and municipal securities are not readily available through market sources, so fair value estimates are based on quoted market price or prices of similar instruments. Generally, the Company obtains one price for each security. However, actual values can only be determined in an arms-length transaction between a willing buyer and seller that can, and often do, vary from these reported values. Furthermore, significant changes in recorded values due to changes in actual and perceived economic conditions can occur rapidly, producing greater unrealized losses or gains in the available for sale portfolio.

During 2014, management identified $158.8 million of investment securities available for sale and transferred them to held for investment. The unrealized holding losses at the date of transfer totaled $3.1 million. For the securities that were transferred into the held for investment category from the available for sale category, the unrealized holding losses at the date of the transfer will continue to be reported in other comprehensive income, and will be amortized over the remaining life of the security as an adjustment of yield in a manner consistent with the amortization of a discount. At September 30, 2018, the remaining unamortized amount of these losses was $0.8 million. The amortization of unrealized holding losses reported in equity will offset the effect on interest income of the amortization of the discount. Management believes the securities transferred are a core banking asset that they now intend to hold until maturity, and if interest rates were to increase before maturity, the fair values would be impacted more significantly and therefore are not consistent with the characteristics of an available for sale investment.

Seacoast Bank also holds 11,330 shares of Visa Class B stock, which following resolution of Visa's pending litigation will be converted to Visa Class A shares. Under the current conversion rate that became effective June 28, 2018, the Company expects to receive 1.6298 shares of Class A stock for each share of Class B stock, for a total of 18,465 shares of Visa Class A stock. Our ownership is related to prior ownership in Visa’s network, while Visa operated as a cooperative. This ownership is recorded on our financial records at a zero basis. Also included in other assets is a $6.1 million investment in a mutual fund carried at fair value.

Other Than Temporary Impairment of Securities – Critical Accounting Policies and Estimates

Seacoast reviews investments quarterly for other than temporary impairment (“OTTI”). The following primary factors are considered for securities identified for OTTI testing: percent decline in fair value, rating downgrades, subordination, duration, amortized loan-to-value, and the ability of the issuers to pay all amounts due in accordance with the contractual terms. Prices obtained from pricing services are usually not adjusted. Based on our internal review procedures and the fair values provided by the pricing services, we believe that the fair values provided by the pricing services are consistent with the principles of ASC 820, Fair Value Measurement. However, on occasion pricing provided by the pricing services may not be consistent with other observed prices in the market for similar securities. Using observable market factors, including interest rate and yield curves, volatilities, prepayment speeds, loss severities and default rates, the Company may at times validate the observed prices using a discounted cash flow model and using the observed prices for similar securities to determine the fair value of its securities.

Changes in the fair values, as a result of deteriorating economic conditions and credit spread changes, should only be temporary. Further, management believes that the Company’s other sources of liquidity, as well as the cash flow from principal and interest payments from its securities portfolio, reduces the risk that losses would be realized as a result of a need to sell securities to obtain liquidity.

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Income Taxes and Realization of Deferred Tax Assets – Critical Accounting Policies and Estimates

Seacoast is subject to income tax laws of the various jurisdictions in which it operates, including U.S. federal, state and local jurisdictions. These laws can be complex and subject to interpretation. Seacoast makes assumptions about how these laws should be applied when determining the provision for income tax expense, including assumptions around the timing of when certain items may be deemed taxable.

Seacoast’s provision for income taxes is comprised of current and deferred taxes. Deferred taxes represent the difference in measurement of assets and liabilities for financial reporting purposes compared to income tax return purposes. Deferred tax assets may also be recognized in connection with certain net operating losses (NOLs) and tax credits. Deferred tax assets are recognized if, based upon management’s judgment, it is more likely than not the benefits of the deferred tax assets will be realized.

At September 30, 2018, the Company had net tax assets of $25.8 million, including net deferred tax assets (“DTA”) of $25.3 million and current receivable of $0.5 million. Although realization is not assured, management believes that realization of the carrying value of the DTA is more likely than not, based upon expectations as to future taxable income and tax planning strategies, as defined by ASC 740 Income Taxes. In comparison, at December 31, 2017 the Company had a net DTA of $25.4 million.

Factors that support this conclusion:

• Income before tax has steadily increased as a result of organic growth, and the 2015 Grand, 2016 Floridian and BMO, and 2017 GulfShore, NorthStar and PBCB acquisitions should further assist in achieving management’s forecast of future earnings which recovers the net operating loss carry-forwards well before expiration;

• Credit costs and overall credit risk has been stable which decreases their impact on future taxable earnings;

• Growth rates for loans are at levels adequately supported by loan officers and support staff;

• We believe new loan production credit quality and concentrations are well managed; and

• Current economic growth forecasts for Florida and the Company’s markets are supportive.

Contingent Liabilities – Critical Accounting Policies and Estimates

The Company is subject to contingent liabilities, including judicial, regulatory and arbitration proceedings, and tax and other claims arising from the conduct of our business activities. These proceedings include actions brought against the Company and/or our subsidiaries with respect to transactions in which the Company and/or our subsidiaries acted as a lender, a financial advisor, a broker or acted in a related activity. Accruals are established for legal and other claims when it becomes probable that the Company will incur an expense and the amount can be reasonably estimated. Company management, together with attorneys, consultants and other professionals, assesses the probability and estimated amounts involved in a contingency. Throughout the life of a contingency, the Company or our advisors may learn of additional information that can affect our assessments about probability or about the estimates of amounts involved. Changes in these assessments can lead to changes in recorded reserves. In addition, the actual costs of resolving these claims may be substantially higher or lower than the amounts reserved for the claims. At September 30, 2018, the Company had no significant accruals for contingent liabilities and had no known pending matters that could potentially be significant.

Interest Rate Sensitivity

Fluctuations in interest rates may result in changes in the fair value of the Company’s financial instruments, cash flows and net interest income. This risk is managed using simulation modeling to calculate the most likely interest rate risk utilizing estimated loan and deposit growth. The objective is to optimize the Company’s financial position, liquidity, and net interest income while limiting their volatility.

Senior management regularly reviews the overall interest rate risk position and evaluates strategies to manage the risk. The Company’s third quarter 2018 Asset and Liability Management Committee (“ALCO”) model simulation indicates net interest income would increase 7.5% if interest rates increased 200 basis points in a parallel fashion over the next 12 months and 3.9% if interest rates increased 100 basis points in a parallel fashion over the next 12 months, and improve 13.3% and 7.0%, respectively, on a 13 to 24 month basis. This compares with the Company’s third quarter 2017 model simulation, which indicated net interest income would increase 7.1% if interest rates were increased 200 basis points in a parallel fashion over the next 12 months and 3.7% if interest rates increased 100 basis points, and improve 12.5% and 6.5%, respectively, on a 13 to 24 month basis. These simulations do not include the impact of accretion from purchased credit impaired, or unimpaired loans.

The Company had a positive gap position based on contractual and prepayment assumptions for the next 12 months, with a positive cumulative interest rate sensitivity gap as a percentage of total earning assets of 22.2% at September 30, 2018. This result includes assumptions for core deposit re-pricing validated for the Company by an independent third party consulting group.

56

The computations of interest rate risk do not necessarily include certain actions management may undertake to manage this risk in response to changes in interest rates. Derivative financial instruments, such as interest rate swaps, options, caps, floors, futures and forward contracts may be utilized as components of the Company’s risk management profile.

Effects of Inflation and Changing Prices

The condensed consolidated financial statements and related financial data presented herein have been prepared in accordance with U.S. GAAP, which require the measurement of financial position and operating results in terms of historical dollars, without considering changes in the relative purchasing power of money, over time, due to inflation.

Unlike most industrial companies, virtually all of the assets and liabilities of a financial institution are monetary in nature. As a result, interest rates have a more significant impact on a financial institution’s performance than the general level of inflation. However, inflation affects financial institutions by increasing their cost of goods and services purchased, as well as the cost of salaries and benefits, occupancy expense, and similar items. Inflation and related increases in interest rates generally decrease the market value of investments and loans held and may adversely affect liquidity, earnings, and shareholders’ equity. Mortgage originations and re-financings tend to slow as interest rates increase, and higher interest rates likely will reduce the Company’s earnings from such activities and the income from the sale of residential mortgage loans in the secondary market.

Item 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

See Management’s discussion and analysis “Interest Rate Sensitivity.”

Market risk refers to potential losses arising from changes in interest rates, and other relevant market rates or prices.

Interest rate risk, defined as the exposure of net interest income and Economic Value of Equity, or “EVE,” to adverse movements in interest rates, is the Company’s primary market risk, and mainly arises from the structure of the balance sheet (non-trading activities). The Company is also exposed to market risk in its investing activities. The Company’s Asset/Liability Committee, or “ALCO,” meets regularly and is responsible for reviewing the interest rate sensitivity position of the Company and establishing policies to monitor and limit exposure to interest rate risk. The policies established by the ALCO are reviewed and approved by the Company’s Board of Directors. The primary goal of interest rate risk management is to control exposure to interest rate risk, within policy limits approved by the Board. These limits reflect the Company’s tolerance for interest rate risk over short-term and long-term horizons.

The Company also performs valuation analyses, which are used for evaluating levels of risk present in the balance sheet that might not be taken into account in the net interest income simulation analyses. Whereas net interest income simulation highlights exposures over a relatively short time horizon, valuation analysis incorporates all cash flows over the estimated remaining life of all balance sheet positions. The valuation of the balance sheet, at a point in time, is defined as the discounted present value of asset cash flows minus the discounted value of liability cash flows, the net result of which is the EVE. The sensitivity of EVE to changes in the level of interest rates is a measure of the longer-term re-pricing risks and options risks embedded in the balance sheet. In contrast to the net interest income simulation, which assumes interest rates will change over a period of time, EVE uses instantaneous changes in rates.

EVE values only the current balance sheet, and does not incorporate the growth assumptions that are used in the net interest income simulation model. As with the net interest income simulation model, assumptions about the timing and variability of balance sheet cash flows are critical in the EVE analysis. Particularly important are the assumptions driving prepayments and the expected changes in balances and pricing of the indeterminate life deposit portfolios. Core deposits are a more significant funding source for the Company, making the lives attached to core deposits more important to the accuracy of our modeling of EVE. The Company periodically reassesses its assumptions regarding the indeterminate lives of core deposits utilizing an independent third party resource to assist. With lower interest rates over a prolonged period, the average lives of core deposits have trended higher and favorably impacted our model estimates of EVE for higher rates. Based on our third quarter 2018 modeling, an instantaneous 100 basis point increase in rates is estimated to increase the EVE 6.4% versus the EVE in a stable rate environment, while a 200 basis point increase in rates is estimated to increase the EVE 12.9%.

While an instantaneous and severe shift in interest rates is used in this analysis to provide an estimate of exposure under an extremely adverse scenario, a gradual shift in interest rates would have a much more modest impact. Since EVE measures the discounted present value of cash flows over the estimated lives of instruments, the change in EVE does not directly correlate to the degree that earnings would be impacted over a shorter time horizon, i.e., the next fiscal year. Further, EVE does not take into account factors such as future balance sheet growth, changes in product mix, change in yield curve relationships, and changing product spreads that could mitigate the adverse impact of changes in interest rates.

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Item 4. CONTROLS AND PROCEDURES

The Company’s management, with the participation of its chief executive officer and chief financial officer has evaluated the effectiveness of the Company’s disclosure controls and procedures (as defined in Rule 13a-15(e) and Rule 15d-15(e) under the Exchange Act) as of September 30, 2018 and concluded that those disclosure controls and procedures are effective. There have been no changes to the Company’s internal control over financial reporting that have occurred during the third quarter of 2018 that have materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.

While the Company believes that its existing disclosure controls and procedures have been effective to accomplish these objectives, the Company intends to continue to examine, refine and formalize its disclosure controls and procedures and to monitor ongoing developments in this area.

Part II OTHER INFORMATION

Item 1. Legal Proceedings

The Company and its subsidiaries, because of the nature of their business, are at all times subject to numerous legal actions, threatened or filed. Management presently believes that none of the legal proceedings to which it is a party are likely to have a materially adverse effect on the Company’s consolidated financial position, or operating results or cash flows.

Item 1A. Risk Factors

In addition to the other information set forth in this report, you should consider the factors discussed in “Part I, Item 1A. Risk Factors” in our report on Form 10-K for the year ended December 31, 2017, which could materially affect our business, financial condition and prospective results. The risks described in this report, in our Form 10-K or our other SEC filings are not the only risks facing our Company. Additional risks and uncertainties not currently known to us or that we currently deem to be immaterial also may materially adversely affect our business, financial condition or future results. There have been no material changes with respect to the risk factors disclosed in our Annual Report on form 10-K for the year ended December 31, 2017.

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

Issuer purchases of equity securities during the first nine months of 2018, entirely related to equity incentive plan activity, were as follows:

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Period	Total Number of Shares Purchased	Average Price Paid Per Share		Total Number of Shares Purchased as part of Public Announced Plan*	Maximum Number of Shares that May yet be Purchased Under the Plan
1/1/18 to 1/31/18	117	$	25.21	292,173	122,827
2/1/18 to 2/28/18	139	25.86		292,312	122,688
3/1/18 to 3/31/18	226	26.63		292,538	122,462
Total - 1st Quarter	482	25.90		292,538	122,462
4/1/18 to 4/30/18	26,163	26.47		318,701	96,299
5/1/18 to 5/31/18	—	—		318,701	96,299
6/1/18 to 6/30/18	111	31.54		318,812	96,188
Total - 2nd Quarter	26,274	26.49		318,812	96,188
7/1/18 to 7/31/18	2,763	31.58		321,575	93,425
8/1/18 to 8/31/18	—	—		321,575	93,425
9/1/18 to 9/30/18	—	—		321,575	93,425
Total - 3rd Quarter	2,763	31.58		321,575	93,425
Year to Date 2018	29,519	$	26.96	321,575	93,425

  *The plan to purchase equity securities totaling 165,000 was approved on September 18, 2001, with no expiration date. An additional 250,000 shares was added to the plan and approved on May 20, 2014.

Item 3. Defaults upon Senior Securities

None

Item 4. Mine Safety Disclosures

None

Item 5. Other Information

None

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Item 6. Exhibits

Exhibit 2.1 Agreement and Plan of Merger, dated as of June 11, 2018, by and among Seacoast Banking Corporation of Florida, Seacoast National Bank, First Green Bancorp, Inc., and First Green Bank from Exhibit 2.1 to the Company's Form 8-K filed June 15, 2018.

Exhibit 3.1.1 Amended and Restated Articles of Incorporation  Incorporated herein by reference from Exhibit 3.1 to the Company's Quarterly Report on Form 10-Q, filed May 10, 2006.

Exhibit 3.1.2 Articles of Amendment to the Amended and Restated Articles of Incorporation  Incorporated herein by reference from Exhibit 3.1 to the Company’s Form 8-K, filed December 23, 2008.

Exhibit 3.1.3 Articles of Amendment to the Amended and Restated Articles of Incorporation Incorporated herein by reference from Exhibit 3.4 to the Company's Form S-1, filed June 22, 2009.

Exhibit 3.1.4 Articles of Amendment to the Amended and Restated Articles of Incorporation Incorporated herein by reference from Exhibit 3.1 to the Company's Form 8-K, filed July 20, 2009.

Exhibit 3.1.5 Articles of Amendment to the Amended and Restated Articles of Incorporation Incorporated herein by reference from Exhibit 3.1 to the Company’s Form 8-K, filed December 3, 2009.

Exhibit 3.1.6 Articles of Amendment to the Amended and Restated Articles of Incorporation Incorporated herein by reference from Exhibit 3.1 to the Company’s Form 8-K/A, filed July 14, 2010.

Exhibit 3.1.7 Articles of Amendment to the Amended and Restated Articles of Incorporation Incorporated herein by reference from Exhibit 3.1 to the Company’s Form 8-K, filed June 25, 2010.

Exhibit 3.1.8 Articles of Amendment to the Amended and Restated Articles of Incorporation Incorporated herein by reference from Exhibit 3.1 to the Company’s Form 8-K, filed June 1, 2011.

Exhibit 3.1.9 Articles of Amendment to the Amended and Restated Articles of Incorporation  Incorporated herein by reference from Exhibit 3.1 to the Company’s Form 8-K, filed December 13, 2013.

Exhibit 3.1.10 Articles of Amendment to the Amended and Restated Articles of Incorporation Incorporated herein by reference from Exhibit 3.1 to the Company's Form 8K, filed May 30, 2018.

Exhibit 3.2 Amended and Restated By-laws of the Company  Incorporated herein by reference from Exhibit 3.2 to the Company’s Form 8-K, filed December 21, 2007.

60

Exhibit 31.1	Certification of the Chief Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
Exhibit 31.2	Certification of the Chief Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
Exhibit 32.1	Statement of Chief Executive Officer Pursuant to 18 U.S.C. Section 1350, Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
Exhibit 32.2	Statement of Chief Financial Officer Pursuant to 18 U.S.C. Section 1350, Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
Exhibit 101	The following materials from Seacoast Banking Corporation of Florida’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2018 formatted in XBRL (eXtensible Business Reporting Language): (i) the Condensed Consolidated Balance Sheets, (ii) the Condensed Consolidated Statements of Operations, (iii) the Consolidated Statements of Cash Flows, (iv) the Notes to Condensed Consolidated Financial Statements.

61

SIGNATURE

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.

SEACOAST BANKING CORPORATION OF FLORIDA

November 6, 2018	/s/ Dennis S. Hudson, III
	DENNIS S. HUDSON, III
	Chairman & Chief Executive Officer

November 6, 2018	/s/ Charles M. Shaffer
	CHARLES M. SHAFFER
	Executive Vice President & Chief Financial Officer

62

EX-31.1

EXHIBIT 31.1

Certification Pursuant to

Section 302 of the Sarbanes-Oxley Act of 2002

I, Dennis S. Hudson, III, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Seacoast Banking Corporation of Florida;

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

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

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

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

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

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

d. Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of 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(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

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

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

Date: November 6, 2018	/s/ Dennis S. Hudson, III
	Dennis S. Hudson, III
	Chairman & Chief Executive Officer

EX-31.2

EXHIBIT 31.2

Certification Pursuant to

Section 302 of the Sarbanes-Oxley Act of 2002

I, Charles M. Shaffer, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Seacoast Banking Corporation of Florida;

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

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

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

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

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

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

d. Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of 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(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

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

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

Date: November 6, 2018	/s/ Charles M. Shaffer
	Charles M. Shaffer
	Executive Vice President and Chief Financial Officer

EX-32.1

EXHIBIT 32.1

STATEMENT OF CHIEF EXECUTIVE OFFICER OF

SEACOAST BANKING CORPORATION OF FLORIDA

PURSUANT TO

18 U.S.C. SECTION 1350

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report on Form 10-Q of Seacoast Banking Corporation of Florida (“Company”) for the period ended September 30, 2018 (“Report”), I, Dennis S. Hudson, III , Chairman and Chief Executive Officer of the Company, do hereby certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of The Sarbanes-Oxley Act of 2002, that:

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

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

Date: November 6, 2018	/s/ Dennis S. Hudson, III
	Dennis S. Hudson, III
	Chairman & Chief Executive Officer

EX-32.2

EXHIBIT 32.2

STATEMENT OF CHIEF FINANCIAL OFFICER OF

SEACOAST BANKING CORPORATION OF FLORIDA

PURSUANT TO

18 U.S.C. SECTION 1350

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report on Form 10-Q of Seacoast Banking Corporation of Florida (“Company”) for the period ended September 30, 2018 (“Report”), I, Charles M. Shaffer, Executive Vice President and Chief Financial Officer of the Company, do hereby certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of The Sarbanes-Oxley Act of 2002, that:

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

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

Date: November 6, 2018	/s/ Charles M. Shaffer
	Charles M. Shaffer
	Executive Vice President and Chief Financial Officer

XML

Document And Entity Information	9 Months Ended
	Sep. 30, 2018 shares
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
Entity Registrant Name	SEACOAST BANKING CORP OF FLORIDA
Entity Central Index Key	0000730708
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Trading Symbol	SBCF
Entity Common Stock, Shares Outstanding	47,269,692

XML

CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
ASSETS
Cash and due from banks	$ 101,920	$ 104,039
Interest bearing deposits with other banks	3,174	5,465
Total cash and cash equivalents	105,094	109,504
Time deposits with other banks	9,813	12,553
Debt securities:
Available for sale (at fair value)	923,206	949,460
Held to maturity (fair value: $353,919 at September 30, 2018 and $414,470 at December 31, 2017)	367,387	416,863
Total debt securities	1,290,593	1,366,323
Loans held for sale (at fair value)	16,172	24,306
Loans	4,059,323	3,817,377
Less: Allowance for loan losses	(33,865)	(27,122)
Loans, net of allowance for loan losses	4,025,458	3,790,255
Bank premises and equipment, net	63,531	66,883
Other real estate owned	4,715	7,640
Goodwill	148,555	147,578
Other intangible assets, net	16,508	19,099
Bank owned life insurance	122,561	123,981
Net deferred tax assets	25,822	25,417
Other assets	102,112	116,590
TOTAL ASSETS	5,930,934	5,810,129
LIABILITIES
Deposits	4,643,510	4,592,720
Securities sold under agreements to repurchase	189,035	216,094
Federal Home Loan Bank (FHLB) borrowings	261,000	211,000
Subordinated debt	70,734	70,521
Other liabilities	33,824	30,130
TOTAL LIABILITIES	5,198,103	5,120,465
SHAREHOLDERS' EQUITY
Common stock, par value $0.10 per share, authorized 120,000,000 shares, issued 47,402,935 and outstanding 47,269,692 shares at September 30, 2018, and authorized 60,000,000, issued 47,032,259 and outstanding 46,917,735 shares at December 31, 2017	4,727	4,693
Other shareholders' equity	728,104	684,971
TOTAL SHAREHOLDERS' EQUITY	732,831	689,664
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 5,930,934	$ 5,810,129

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CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Statement of Financial Position [Abstract]
Held to maturity, fair value	$ 353,919	$ 414,470
Common stock, par value (in dollars per share)	$ 0.10	$ 0.10
Common stock, shares authorized (in shares)	120,000,000	60,000,000
Common stock, shares issued (in shares)	47,402,935	47,032,259
Common stock, shares outstanding (in shares)	47,269,692	46,917,735

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CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Income Statement [Abstract]
Interest and fees on loans	$ 48,713	$ 40,403	$ 140,489	$ 110,503
Interest and dividends on securities	9,807	9,012	29,016	25,971
Interest on interest bearing deposits and other investments	634	664	1,835	1,778
TOTAL INTEREST INCOME	59,154	50,079	171,340	138,252
Interest on deposits	2,097	930	5,623	2,408
Interest on time certificates	2,975	1,266	7,783	2,646
Interest on borrowed money	2,520	2,134	6,403	5,128
TOTAL INTEREST EXPENSE	7,592	4,330	19,809	10,182
NET INTEREST INCOME	51,562	45,749	151,531	128,070
Provision for loan losses	5,774	680	9,388	3,385
NET INTEREST INCOME AFTER PROVISION FOR LOAN LOSSES	45,788	45,069	142,143	124,685
Noninterest income
Other income	12,339	11,481	37,506	31,853
Securities losses, net	(48)	(47)	(198)	(26)
TOTAL NONINTEREST INCOME (Note H)	12,291	11,434	37,308	31,827
TOTAL NONINTEREST EXPENSES (Note H)	37,399	34,361	112,809	110,732
INCOME BEFORE INCOME TAXES	20,680	22,142	66,642	45,780
Provision for income taxes	4,358	7,926	15,329	15,962
NET INCOME	$ 16,322	$ 14,216	$ 51,313	$ 29,818
SHARE DATA
Net income per share - diluted (in dollars per share)	$ 0.34	$ 0.32	$ 1.07	$ 0.70
Net income per share - basic (in dollars per share)	0.35	0.33	1.09	0.72
Cash dividends declared (in dollars per share)	$ 0	$ 0	$ 0	$ 0
Average shares outstanding - diluted (in shares)	48,029,330	43,792,108	47,903,093	42,298,136
Average shares outstanding - basic (in shares)	47,205,383	43,151,248	47,108,302	41,626,356

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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - 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	$ 16,322	$ 14,216	$ 51,313	$ 29,818
Other comprehensive income (loss):
Unrealized (losses) gains on securities available for sale	(3,548)	1,149	(20,564)	9,920
Amortization of unrealized losses on securities transferred to held to maturity, net	108	122	442	365
Reclassification adjustment for gains included in net income	0	47	0	26
Income tax effect on other comprehensive (loss) income	919	(503)	5,358	(3,964)
Total other comprehensive (loss) income	(2,521)	815	(14,764)	6,347
COMPREHENSIVE INCOME	$ 13,801	$ 15,031	$ 36,549	$ 36,165

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CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 51,313	$ 29,818
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	4,691	3,961
Amortization of premiums and discounts on securities, net	2,567	2,864
Other amortization and accretion, net	185	(346)
Stock based compensation	5,603	3,787
Origination of loans designated for sale	(225,929)	(164,878)
Sale of loans designated for sale	239,316	161,587
Provision for loan losses	9,388	3,385
Deferred income taxes	5,675	15,077
Losses on sale of securities	0	26
Gains on sale of loans	(7,752)	(5,160)
Gains on sale and write-downs of other real estate owned	(12)	(657)
Losses on disposition of fixed assets	216	1,973
Changes in operating assets and liabilities, net of effects from acquired companies:
Net decrease (increase) in other assets	17,281	(419)
Net increase (decrease) in other liabilities	3,644	(2,575)
Net cash provided by operating activities	106,186	48,443
CASH FLOWS FROM INVESTING ACTIVITIES
Maturities and repayments of debt securities available for sale	107,728	176,978
Maturities and repayments of debt securities held to maturity	48,945	64,984
Proceeds from sale of debt securities available for sale	0	7,525
Purchases of debt securities available for sale	(104,650)	(223,805)
Purchases of debt securities held to maturity	0	(67,563)
Maturities of time deposits with other banks	2,740	2,682
Net new loans and principal repayments	(225,570)	(277,142)
Purchase of loans held for investment	(19,541)	(55,352)
Proceeds from the sale of portfolio loans	0	74,211
Proceeds from the sale of other real estate owned	9,260	5,123
Proceeds from sale of FHLB and Federal Reserve Bank Stock	28,751	29,984
Purchase of FHLB and Federal Reserve Bank Stock	(33,681)	(32,398)
Purchase of VISA Class B stock	0	(6,180)
Redemption of bank owned life insurance	4,232	0
Purchase of bank owned life insurance	0	(30,000)
Net cash from bank acquisition	0	30,225
Additions to bank premises and equipment	(3,557)	(4,247)
Net cash used in investing activities	(185,343)	(304,975)
CASH FLOWS FROM FINANCING ACTIVITIES
Net increase in deposits	50,790	304,005
Net decrease in federal funds purchased and repurchase agreements	(27,059)	(62,049)
Net increase (decrease) in FHLB borrowings	50,000	(26,000)
Issuance of common stock, net of related expense	0	55,641
Stock based employee benefit plans	1,016	569
Dividends paid	0	0
Net cash provided by financing activities	74,747	272,166
Net increase (decrease) in cash and cash equivalents	(4,410)	15,634
Cash and cash equivalents at beginning of period	109,504	109,644
Cash and cash equivalents at end of period	105,094	125,278
Supplemental disclosure of non cash investing activities:
Transfers from loans to other real estate owned	4,271	448
Transfers from bank premises to other real estate owned	2,052	1,212
Transfers from loans held for investment to loans held for sale	$ 0	$ 5,664

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Basis of Presentation

9 Months Ended

Sep. 30, 2018

Accounting Policies [Abstract]

Basis of Presentation

Basis of Presentation

Basis of Presentation

The accompanying unaudited condensed consolidated financial statements of Seacoast Banking Corporation of Florida and its subsidiaries (the "Company") have been prepared in accordance with U.S. generally accepted accounting principles for interim financial information and with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by U.S. generally accepted accounting principles for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. Certain prior period amounts have been reclassified to conform to the current period presentation.

Operating results for the nine months ended September 30, 2018 are not necessarily indicative of the results that may be expected for the year ending December 31, 2018 or any other period. For further information, refer to the consolidated financial statements and footnotes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017. Certain prior period amounts have been reclassified to conform to the current period presentation.

Adoption of new accounting pronouncements

On January 1, 2018, we adopted Financial Accounting Standards Board (“FASB”) Accounting Standards Update (“ASU”) 2014-9, “Revenue from Contracts with Customers,” and all the related amendments (collectively, “ASC 606”) using the modified retrospective approach applied to all contracts in place at that date. Adoption had no material impact on the Company’s consolidated financial statements including no change to the amount or timing of revenue recognized for contracts within the scope of the new standard. Activity in the scope of the new standard includes:

• Service Charges on Deposits: Seacoast National Bank ("Seacoast Bank") offers a variety of deposit-related services to its customers through several delivery channels including branch offices, ATMs, telephone, mobile, and internet banking. Transaction-based fees are recognized when services, each of which represents a performance obligation, are satisfied. Service fees may be assessed monthly, quarterly, or annually; however, the account agreements to which these fees relate can be cancelled at any time by Seacoast and/or the customer. Therefore, the contract term is considered a single day (a day-to-day contract).

• Trust Fees: The Company earns trust fees from fiduciary services provided to trust customers which include custody of assets, recordkeeping, collection and distribution of funds. Fees are earned over time and accrued monthly as the Company provides services, and are generally assessed based on the market value of the trust assets under management at a particular date or over a particular period.

• Brokerage Commissions and Fees: The Company earns commissions and fees from investment brokerage services provided to its customers through an arrangement with a third-party service provider. Commissions received from the third-party service provider are recorded monthly and are based upon customer activity. Fees are earned over time and accrued monthly as services are provided. The Company acts as an agent in this arrangement and therefore presents the brokerage commissions and fees net of related costs.

• Interchange Income: Fees earned on card transactions depend upon the volume of activity, as well as the fees permitted by the payment network. Such fees are recognized by the Company upon fulfilling its performance obligation to approve the card transaction.

On January 1, 2018, we adopted ASU 2016-1, “Financial Instruments – Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities.” Upon adoption, we reclassified $0.1 million of accumulated unrealized loss pertaining to an equity investment previously classified as available for sale from Accumulated Other Comprehensive Income to Retained Earnings.

Use of Estimates The preparation of these condensed consolidated financial statements required the use of certain estimates by management in determining the Company’s assets, liabilities, revenues and expenses. Specific areas, among others, requiring the application of management’s estimates include determination of the allowance for loan losses, the valuation of investment securities available for sale, fair value of impaired loans, contingent liabilities, fair value of other real estate owned, and the valuation of deferred tax assets. Actual results could differ from those estimates.

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Recently Issued Accounting Standards, Not Yet Adopted

9 Months Ended

Sep. 30, 2018

Accounting Policies [Abstract]

Recently Issued Accounting Standards, Not Yet Adopted

Recently Issued Accounting Standards, Not Yet Adopted

The following provides a brief description of accounting standards that have been issued but are not yet adopted that could have a material effect on the Company's financial statements:

ASU 2016-02, Leases (Topic 842)
Description	In February 2016, the FASB amended existing guidance that requires lessees recognize the following for all leases at the commencement date: 1. A lease liability, which is a lessee’s obligation to make lease payments arising from a lease, measured on a discounted basis. 2. A right-of-use specified asset, which is an asset that represents the lessee’s right to use, or control the use of, a specified asset for the lease term. Under the new guidance, lessor accounting is largely unchanged. Certain targeted improvements were made to align lessor accounting with the lessee accounting model and Topic 606, Revenue from Contracts with Customers. In July 2018, the FASB issued ASU 2018-11, which provides an additional optional transition method. The additional transition method allows entities to initially apply the new lease standard at the adoption date by recognizing a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. Consequently, an entity’s reporting for the comparative periods presented in the financial statements in which the entity adopts the new lease standard would continue to be in accordance with current GAAP (Topic 840), including disclosures.
Date of Adoption	This amendment is effective for public business entities for reporting periods beginning after December 15, 2018, including interim periods within that reporting period. Early adoption is permitted.
Effect on the Consolidated Financial Statements	The Company is in the process of evaluating its existing leases, which are primarily operating leases of branch properties and equipment, to determine the amounts to be recognized as right-of-use assets and lease liabilities.  The Company will adopt the new standard effective January 1, 2019. The effect of adoption on the Company’s consolidated statements of income is not expected to be material.

ASU 2016-13, Financial Instruments –Credit Losses (Topic 326)
Description	In June 2016, the FASB issued guidance to replace the incurred loss model with an expected loss model, which is referred to as the current expected credit loss (CECL) model. The CECL model is applicable to the measurement of credit losses on financial assets measured at amortized cost, including loan receivables and held to maturity debt securities. It also applies to off-balance sheet credit exposures including loan commitments, standby letters of credit, financial guarantees and other similar instruments.
Date of Adoption	This amendment is effective for public business entities for reporting periods beginning after December 15, 2019, including interim periods within that reporting period. Early adoption is permitted only as of annual reporting periods after December 15, 2018, including interim reporting periods within that period.
Effect on the Consolidated Financial Statements	The Company’s transition oversight committee is in the process of evaluating and implementing changes to credit loss estimation models and related processes. Updates to business processes and the documentation of accounting policy decisions are ongoing. The Company may recognize an increase in the allowance for loan losses upon adoption, recorded as a one-time effect cumulative adjustment to retained earnings. However, the magnitude of the impact on the Company's consolidated financial statements has not yet been determined. The Company will adopt this accounting standard effective January 1, 2020.

ASU 2017-04, Intangibles – Goodwill and Other (Topic 350): Simplifying the Test for Goodwill
Description	In January 2017, the FASB amended the existing guidance to simplify the goodwill impairment measurement test by eliminating Step 2. The amendment requires the Company to perform the goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount and recognizing an impairment charge for the amount by which the carrying amount exceeds the fair value. Additionally, an entity should consider the tax effects from any tax deductible goodwill on the carrying amount when measuring the impairment loss.
Date of Adoption	This amendment is effective for public business entities for reporting periods beginning after December 15, 2019, including interim periods within that reporting period. Early adoption is permitted on annual goodwill impairment tests performed after January 1, 2017.
Effect on the Consolidated Financial Statements	The impact to the Company's consolidated financial statements from the adoption of this pronouncement is not expected to be material.

ASU 2017-08, Receivables-Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased callable Debt Securities
Description	In March 2017, the FASB issued guidance which requires entities to amortize premiums on certain purchased callable debt securities to their earliest call date. The accounting for purchased callable debt securities held at a discount did not change. Amortizing the premium to the earliest call date generally aligns interest income recognition with the economics of instruments. This guidance requires a modified retrospective approach under which a cumulative adjustment will be made to retained earnings as of the beginning of the period in which it is adopted.
Date of Adoption	The amendments are effective for public business entities for annual periods beginning after December 15, 2018, including interim periods within those periods.
Effect on the Consolidated Financial Statements	The impact to the Company's consolidated financial statements from the adoption of this pronouncement is not expected to be material.

ASU 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities
Description	In August 2017, the FASB provided guidance to improve the financial reporting of hedging relationships to better portray the economic results of an entity’s risk management activities in its financial statements. The amendments also simplify the application of the hedge accounting guidance.
Date of Adoption	The amendments are effective for public business entities for annual periods beginning after December 15, 2018, including interim periods within those periods.
Effect on the Consolidated Financial Statements	The impact to the Company's consolidated financial statements from the adoption of this pronouncement is not expected to be material.

ASU 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement
Description	On August 28, 2018, the FASB issued ASU 2018-13, which changes the disclosure requirements on fair value measurements in Topic 820. The amendments in this ASU are the result of a broader disclosure project called FASB Concepts Statement, Conceptual Framework for Financial Reporting - Chapter 8: Notes to Financial Statements. The ASU modifies or removes certain existing disclosures, and adds certain new disclosures.
Date of Adoption	The amendments are effective for public business entities for annual periods beginning after December 15, 2019, including interim periods within those periods. Early adoption is permitted for any eliminated or modified disclosure upon issuance of the ASU.
Effect on the Consolidated Financial Statements	The impact to the Company's consolidated financial statements from the adoption of this pronouncement is not expected to be material.

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Earnings per Share

9 Months Ended

Sep. 30, 2018

Earnings Per Share [Abstract]

Earnings per Share

Earnings per Share

For the three and nine months ended September 30, 2018, options to purchase 481,000 and 412,000 shares, respectively, were antidilutive and not included in the computation of diluted earnings per share, compared to 274,000 and 191,000, respectively, for the three and nine months ended September 30, 2017. The dilutive impact of restricted stock and stock options is calculated under the treasury method.

	Three Months Ended September 30,				Nine Months Ended September 30,
(Dollars in thousands, except per share data)	2018		2017		2018		2017
Basic earnings per share
Net income	$	16,322	$	14,216	$	51,313	$	29,818
Average common stock outstanding	47,205,383		43,151,248		47,108,302		41,626,356
Net income per share	$	0.35	$	0.33	$	1.09	$	0.72
Diluted earnings per share
Net income	$	16,322	$	14,216	$	51,313	$	29,818
Average common stock outstanding	47,205,383		43,151,248		47,108,302		41,626,356
Add: Dilutive effect of employee restricted stock and stock options	823,947		640,860		794,791		671,780
Average diluted stock outstanding	48,029,330		43,792,108		47,903,093		42,298,136
Net income per share	$	0.34	$	0.32	$	1.07	$	0.70

On February 21, 2017, the Company completed a public offering of 2,702,500 shares of common stock, generating net proceeds to the Company of $55.7 million. In addition, CapGen Capital Group III LP (“CapGen”), in conjunction with the Company’s offering, sold 6,210,000 shares of the Company’s common stock, with no net proceeds to the Company.

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Securities

9 Months Ended

Sep. 30, 2018

Investments, Debt and Equity Securities [Abstract]

Securities

Securities

The amortized cost, gross unrealized gains and losses and fair value of securities available for sale and held to maturity at September 30, 2018 and December 31, 2017⁽¹⁾ are summarized as follows:

	September 30, 2018
(In thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Debt securities available for sale
U.S. Treasury securities and obligations of U.S. Government Entities	$	7,486	$	114	$	(57	)	$	7,543
Mortgage-backed securities and collateralized mortgage obligations of U.S. Government Sponsored Entities	597,689		153		(24,660		)	573,182
Private mortgage-backed securities and collateralized mortgage obligations	75,485		925		(318		)	76,092
Collateralized loan obligations	223,419		137		(566		)	222,990
Obligations of state and political subdivisions	43,951		261		(813		)	43,399
Totals	$	948,030	$	1,590	$	(26,414	)	$	923,206
Debt securities held to maturity
Mortgage-backed securities and collateralized mortgage obligations of U.S. Government Sponsored Entities	$	313,667	$	—	$	(13,557	)	$	300,110
Private mortgage-backed securities and collateralized mortgage obligations	21,720		181		(131		)	21,770
Collateralized loan obligations	32,000		58		(19		)	32,039
Totals	$	367,387	$	239	$	(13,707	)	$	353,919

	December 31, 2017
(In thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Debt securities available for sale
U.S. Treasury securities and obligations of U.S. Government Entities	$	9,475	$	274	$	(5	)	$	9,744
Mortgage-backed securities and collateralized mortgage obligations of U.S. Government Sponsored Entities	560,396		1,163		(8,034		)	553,525
Private mortgage-backed securities and collateralized mortgage obligations	75,152		1,154		(285		)	76,021
Collateralized loan obligations	263,579		798		(68		)	264,309
Obligations of state and political subdivisions	45,118		813		(70		)	45,861
Totals	$	953,720	$	4,202	$	(8,462	)	$	949,460
Debt securities held to maturity
Mortgage-backed securities and collateralized mortgage obligations of U.S. Government Sponsored Entities	$	353,541	$	802	$	(4,159	)	$	350,184
Private mortgage-backed securities and collateralized mortgage obligations	22,799		714		(53		)	23,460
Collateralized loan obligations	40,523		303		—			40,826
Totals	$	416,863	$	1,819	$	(4,212	)	$	414,470

(1) December 31, 2017 balances in the tables above reflect certain reclassifications between categories.  

There were no sales of securities during the three and nine month periods endedSeptember 30, 2018. Proceeds from sales of securities during the three month period ended September 30, 2017 were $3.7 million, with gross gains of $15,000 and gross losses of $62,000. Proceeds from sales of securities during the nine month period endedSeptember 30, 2017 were $7.5 million with gross gains of $36,000 and gross losses of $62,000. Included in “Securities (losses)/gains, net” for the three and nine month periods endedSeptember 30, 2018, is $0.1 million and $0.2 million,respectively, representing the decline in the value of an investment in shares of a mutual fund that invests primarily in CRA-qualified debt securities.

At September 30, 2018, debt securities with a fair value of $162.4 million were pledged as collateral for United States Treasury deposits, other public deposits and trust deposits. Debt securities with a fair value of $189.0 million were pledged as collateral for repurchase agreements.

The amortized cost and fair value of debt securities available for sale and held to maturity at September 30, 2018, by contractual maturity, are shown below. Expected maturities will differ from contractual maturities because prepayments of the underlying collateral for these securities may occur, due to the right to call or repay obligations with or without call or prepayment penalties. Securities not due at a single maturity date are shown separately.

	Held to Maturity				Available for Sale
(In thousands)	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Due in less than one year	$	—	$	—	$	13,832	$	13,781
Due after one year through five years	—		—		79,637		79,582
Due after five years through ten years	32,000		32,039		177,911		177,196
Due after ten years	—		—		3,476		3,373
	32,000		32,039		274,856		273,932
Mortgage-backed securities and collateralized mortgage obligations of U.S. Government Sponsored Entities	313,667		300,110		597,689		573,182
Private mortgage-backed securities and collateralized mortgage obligations	21,720		21,770		75,485		76,092
Totals	$	367,387	$	353,919	$	948,030	$	923,206

The estimated fair value of a security is determined based on market quotations when available or, if not available, by using quoted market prices for similar securities, pricing models or discounted cash flows analyses, using observable market data where available. The tables below indicate the fair value of debt securities with unrealized losses and the period of time for which these losses were outstanding at September 30, 2018 and December 31, 2017, respectively.

	September 30, 2018
	Less than 12 months					12 months or longer					Total
(In thousands)	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
U.S. Treasury securities and obligations of U.S. Government Entities	$	7,543	$	(57	)	$	—	$	—		$	7,543	$	(57	)
Mortgage-backed securities and collateralized mortgage obligations of U.S. Government Sponsored Entities	456,356		(15,703		)	416,936		(22,514		)	873,292		(38,217		)
Private mortgage-backed securities and collateralized mortgage obligations	84,026		(251		)	13,836		(197		)	97,862		(448		)
Collateralized loan obligations	255,030		(585		)	—		—			255,030		(585		)
Obligations of state and political subdivisions	40,136		(672		)	3,262		(142		)	43,398		(814		)
Totals	$	843,091	$	(17,268	)	$	434,034	$	(22,853	)	$	1,277,125	$	(40,121	)

	December 31, 2017
	Less than 12 months					12 months or longer					Total
(In thousands)	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
U.S. Treasury securities and obligations of U.S. Government Entities	$	1,107	$	(5	)	$	—	$	—		$	1,107	$	(5	)
Mortgage-backed securities and collateralized mortgage obligations of U.S. Government Sponsored Entities	304,723		(2,047		)	413,725		(10,146		)	718,448		(12,193		)
Private mortgage-backed securities and collateralized mortgage obligations	—		—			20,744		(338		)	20,744		(338		)
Collateralized loan obligations	14,933		(68		)	—		—			14,933		(68		)
Obligations of state and political subdivisions	5,414		(14		)	5,864		(56		)	11,278		(70		)
Totals	$	326,177	$	(2,134	)	$	440,333	$	(10,540	)	$	766,510	$	(12,674	)

The two tables above include debt securities held to maturity that were transferred from available for sale into held to maturity during 2014. Those securities had unrealized losses of $3.1 million at the date of transfer, and at September 30, 2018, the unamortized balance was $0.8 million. The fair value of those securities in an unrealized loss position for less than twelve months at September 30, 2018 and December 31, 2017 was $53.6 million and $22.9 million, respectively, with unrealized losses of $1.5 million and $0.2 million, respectively. The fair value of those securities in an unrealized loss position for 12 months or more at September 30, 2018 and December 31, 2017 was $14.7 million and $15.3 million, respectively, with unrealized losses of $0.9 million and $0.4 million, respectively.

At September 30, 2018, the Company had $38.2 million of unrealized losses on mortgage-backed securities and collateralized mortgage obligations of government sponsored entities having a fair value of $873.3 million that were attributable to a combination of factors, including relative changes in interest rates since the time of purchase. The contractual cash flows for these debt securities are guaranteed by U.S. government-sponsored entities. Based on our assessment of these mitigating factors, management believes that the unrealized losses on these holdings are a function of changes in investment spreads and interest movements and not changes in credit quality. Management expects to recover the entire amortized cost basis of these securities.

At September 30, 2018, $0.4 million of the unrealized losses pertained to private label debt securities secured by seasoned collateral with a fair value of $97.9 million. Management attributes the loss to a combination of factors, including relative changes in interest rates since the time of purchase. The collateral underlying these mortgage investments are 30- and 15-year fixed and adjustable rate mortgage loans with low loan to values, improving subordination, and historically have had minimal foreclosures and losses. Based on its assessment of these factors, management believes that the unrealized losses on these holdings are a function of changes in investment spreads and interest rate movements and not changes in credit quality. Management expects to recover the entire amortized cost basis of these securities.

At September 30, 2018, the Company had unrealized losses of $0.6 million on collateralized loan obligations with a fair value of $255.0 million. Management expects to recover the entire amortized cost basis of these securities.

At September 30, 2018, the Company had unrealized losses of $0.8 million on obligations of state and political subdivisions with a fair value of $43.4 million. Management expects to recover the entire amortized cost basis of these securities.

As of September 30, 2018, the Company does not intend to sell debt securities that are in an unrealized loss position and it is not more likely than not that the Company will be required to sell these securities before recovery of the amortized cost basis. Therefore, management does not consider any investment to be other-than-temporarily impaired at September 30, 2018.

Included in other assets is Federal Home Loan Bank and Federal Reserve Bank stock which has a par value as of September 30, 2018 and December 31, 2017 of $37.5 million and $32.5 million, respectively. At September 30, 2018, the Company had not identified events or changes in circumstances which may have a significant adverse effect on the fair value of these investments. Also included in other assets is a $6.1 million investment in a mutual fund carried at fair value.

The Company holds 11,330 shares of Visa Class B stock which, following resolution of pending litigation, will be converted to Visa Class A shares. Under the current conversion ratio that became effective June 28, 2018, the Company expects to receive 1.6298 shares of Class A stock for each share of Class B stock, for a total of 18,465 shares of Visa Class A stock. Our ownership of these shares is related to prior ownership in Visa’s network while Visa operated as a cooperative. The shares are recorded on our financial records at zero basis.

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Loans

9 Months Ended

Sep. 30, 2018

Receivables [Abstract]

Loans

Loans

Information pertaining to portfolio loans, purchased credit impaired (“PCI”) loans, and purchased unimpaired loans (“PUL”) is as follows:

	September 30, 2018
(In thousands)	Portfolio Loans		PCI Loans		PULs		Total
Construction and land development	$	289,449	$	129	$	86,679	$	376,257
Commercial real estate	1,357,721		10,838		358,140		1,726,699
Residential real estate	994,575		1,356		156,709		1,152,640
Commercial and financial	554,627		728		55,600		610,955
Consumer	187,199		—		5,573		192,772
Totals (1)	$	3,383,571	$	13,051	$	662,701	$	4,059,323

	December 31, 2017
(In thousands)	Portfolio Loans		PCI Loans		PULs		Total
Construction and land development	$	215,315	$	1,121	$	126,689	$	343,125
Commercial real estate	1,170,618		9,776		459,598		1,639,992
Residential real estate	845,420		5,626		187,764		1,038,810
Commercial and financial	512,430		894		92,690		606,014
Consumer	178,826		—		10,610		189,436
Totals (1)	$	2,922,609	$	17,417	$	877,351	$	3,817,377

(1) Net loan balances as of September 30, 2018 and December 31, 2017 include deferred costs of $15.9 million and $12.9 million for each period, respectively.

The following tables present the contractual delinquency of the recorded investment by class of loans as of:

	September 30, 2018
(In thousands)	Current		Accruing 30-59 Days Past Due		Accruing 60-89 Days Past Due		Accruing Greater Than 90 Days		Nonaccrual		Total Financing Receivables
Portfolio Loans
Construction and land development	$	289,234	$	—	$	—	$	—	$	215	$	289,449
Commercial real estate	1,345,174		3,173		—		—		9,374		1,357,721
Residential real estate	984,874		1,202		104		—		8,395		994,575
Commercial and financial	548,861		2,050		2,521		359		836		554,627
Consumer	185,902		1,119		—		—		178		187,199
Totals	3,354,045		7,544		2,625		359		18,998		3,383,571
Purchased Unimpaired Loans
Construction and land development	86,679		—		—		—		—		86,679
Commercial real estate	355,541		1,181		—		696		722		358,140
Residential real estate	151,125		1,705		124		—		3,755		156,709
Commercial and financial	50,427		4,011		733		—		429		55,600
Consumer	5,568		5		—		—		—		5,573
Totals	649,340		6,902		857		696		4,906		662,701
Purchased Credit Impaired Loans
Construction and land development	129		—		—		—		—		129
Commercial real estate	9,427		—		—		—		1,411		10,838
Residential real estate	552		—		—		—		804		1,356
Commercial and financial	707		—		—		—		21		728
Consumer	—		—		—		—		—		—
Totals	10,815		—		—		—		2,236		13,051
Totals	$	4,014,200	$	14,446	$	3,482	$	1,055	$	26,140	$	4,059,323

	December 31, 2017
(In thousands)	Current		Accruing 30-59 Days Past Due		Accruing 60-89 Days Past Due		Accruing Greater Than 90 Days		Nonaccrual		Total Financing Receivables
Portfolio Loans
Construction and land development	$	215,077	$	—	$	—	$	—	$	238	$	215,315
Commercial real estate	1,165,738		2,605		585		—		1,690		1,170,618
Residential real estate	836,117		812		75		—		8,416		845,420
Commercial and financial	507,501		2,776		26		—		2,127		512,430
Consumer	178,676		52		—		—		98		178,826
Totals	2,903,109		6,245		686		—		12,569		2,922,609
Purchased Unimpaired Loans
Construction and land development	126,655		34		—		—		—		126,689
Commercial real estate	457,899		979		—		—		720		459,598
Residential real estate	186,549		128		87		—		1,000		187,764
Commercial and financial	92,315		54		—		—		321		92,690
Consumer	10,610		—		—		—		—		10,610
Totals	874,028		1,195		87		—		2,041		877,351
Purchased Credit Impaired Loans
Construction and land development	1,121		—		—		—		—		1,121
Commercial real estate	9,352		—		—		—		424		9,776
Residential real estate	544		642		—		—		4,440		5,626
Commercial and financial	844		—		—		—		50		894
Consumer	—		—		—		—		—		—
Totals	11,861		642		—		—		4,914		17,417
Totals	$	3,788,998	$	8,082	$	773	$	—	$	19,524	$	3,817,377

The Company utilizes an internal asset classification system as a means of reporting problem and potential problem loans. Under the Company’s risk rating system, the Company classifies problem and potential problem loans as “Special Mention,” “Substandard,” and “Doubtful” and these loans are monitored on an ongoing basis. Loans that do not currently expose the Company to sufficient risk to warrant classification in the Substandard or Doubtful categories, but possess weaknesses that deserve management’s close attention are deemed to be Special Mention. Substandard loans include those characterized by the distinct possibility that the Company will sustain some loss if the deficiencies are not corrected. Loans classified as Substandard may require a specific allowance. Loans classified as Doubtful have all the weaknesses inherent in those classified Substandard with the added characteristic that the weaknesses present make collection or liquidation in full, on the basis of currently existing facts, conditions and values, highly questionable and improbable. The principal on loans classified as Doubtful is generally charged off.  Risk ratings are updated any time the situation warrants.

Loans that are not problem or potential problem loans are considered to be pass-rated loans and risk grades are recalculated at least annually by the loan relationship manager. The following tables present the risk category of loans by class of loans based on the most recent analysis performed as of September 30, 2018 and December 31, 2017:

	September 30, 2018
(In thousands)	Pass		Special Mention		Substandard		Doubtful		Total
Construction and land development	$	364,903	$	6,036	$	5,318	$	—	$	376,257
Commercial real estate	1,673,457		24,328		28,914		—		1,726,699
Residential real estate	1,126,238		2,985		23,417		—		1,152,640
Commercial and financial	602,973		1,895		6,030		57		610,955
Consumer	189,223		2,900		649		—		192,772
Totals	$	3,956,794	$	38,144	$	64,328	$	57	$	4,059,323

	December 31, 2017
(In thousands)	Pass		Special Mention		Substandard		Doubtful		Total
Construction and land development	$	328,127	$	10,414	$	4,584	$	—	$	343,125
Commercial real estate	1,586,932		29,273		23,787		—		1,639,992
Residential real estate	1,023,925		4,621		10,203		61		1,038,810
Commercial and financial	593,689		3,237		8,838		250		606,014
Consumer	189,354		—		82		—		189,436
Totals	$	3,722,027	$	47,545	$	47,494	$	311	$	3,817,377

PCI Loans

PCI loans are accounted for pursuant to ASC Topic 310-30. The excess of cash flows expected to be collected over the estimated fair value is referred to as the accretable yield and is recognized in interest income over the remaining life of the loan in situations where there is a reasonable expectation about the timing and amount of cash flows expected to be collected. The difference between the contractually required payments and the cash flows expected to be collected at acquisition, considering the impact of prepayments, is referred to as the non-accretable difference.

The table below summarizes the changes in accretable yield on PCI loans for the periods ended:

	Three Months Ended September 30,						Nine Months Ended September 30,
(In thousands)	2018			2017			2018			2017
Beginning balance	$	3,189		$	3,265		$	3,699		$	3,807
Additions	—			—			—			—
Deletions	—			—			(43		)	(10		)
Accretion	(284		)	(357		)	(989		)	(1,173		)
Reclassification from non-accretable difference	—			407			238			691
Ending balance	$	2,905		$	3,315		$	2,905		$	3,315

Troubled Debt Restructured Loans

The Company’s Troubled Debt Restructuring (“TDR”) concessions granted to certain borrowers generally do not include forgiveness of principal balances, but may include interest rate reductions, an extension of the amortization period and/or converting the loan to interest only for a limited period of time. Loan modifications are not reported in calendar years after modification if the loans were modified at an interest rate equal to the yields of new loan originations with comparable risk and the loans are performing based on the terms of the restructuring agreements. Most loans prior to modification were classified as impaired and the allowance for loan losses is determined in accordance with Company policy.

The following table presents loans that were modified during the nine months ended:

(In thousands)	Number of Contracts	Pre- Modification Outstanding Recorded Investment		Post- Modification Outstanding Recorded Investment		Specific Reserve Recorded		Valuation Allowance Recorded
September 30, 2018
Commercial and financial	1	$	98	$	—	$	—	$	—
Totals	1	$	98	$	—	$	—	$	—
September 30, 2017
Construction and land development	1	$	52	$	46	$	6	$	6
Residential real estate	1	15		15		—		—
Totals	2	$	67	$	61	$	6	$	6

During the three months ended September 30, 2018, there were no payment defaults on loans modified to a TDR within the previous twelve months. During the nine months ended September 30, 2018, there was one payment default on a loan of $0.1 million that had been modified to a TDR within the previous twelve months, compared to none during the three months ended September 30, 2017 and one during the nine months ended September 30, 2017. The Company considers a loan to have defaulted when it becomes 90 days or more delinquent under the modified terms, has been transferred to nonaccrual status, or has been transferred to other real estate owned. A defaulted TDR is generally placed on nonaccrual and a specific allowance for loan loss is assigned in accordance with the Company’s policy.

Impaired Loans

Loans are considered impaired if they are 90 days or more past due, in nonaccrual status, or are TDRs. As of September 30, 2018 and December 31, 2017, the Company’s recorded investment in impaired loans, excluding PCI loans, the unpaid principal balance and related valuation allowance was as follows:

	September 30, 2018
(In thousands)	Recorded Investment		Unpaid Principal Balance		Related Valuation Allowance
Impaired Loans with No Related Allowance Recorded:
Construction and land development	$	202	$	479	$	—
Commercial real estate	2,896		4,161		—
Residential real estate	13,698		18,313		—
Commercial and financial	—		—		—
Consumer	54		92		—
Impaired Loans with an Allowance Recorded:
Construction and land development	210		224		23
Commercial real estate	12,898		13,025		3,591
Residential real estate	6,106		6,252		869
Commercial and financial	1,629		1,608		1,483
Consumer	392		399		172
Total Impaired Loans
Construction and land development	412		703		23
Commercial real estate	15,794		17,186		3,591
Residential real estate	19,804		24,565		869
Commercial and financial	1,629		1,608		1,483
Consumer	446		491		172
Totals	$	38,085	$	44,553	$	6,138

	December 31, 2017
(In thousands)	Recorded Investment		Unpaid Principal Balance		Related Valuation Allowance
Impaired Loans with No Related Allowance Recorded:
Construction and land development	$	223	$	510	$	—
Commercial real estate	3,475		4,873		—
Residential real estate	10,272		15,063		—
Commercial and financial	19		29		—
Consumer	105		180		—
Impaired Loans with an Allowance Recorded:
Construction and land development	251		264		23
Commercial real estate	4,780		4,780		195
Residential real estate	8,448		8,651		1,091
Commercial and financial	2,436		883		1,050
Consumer	282		286		43
Total Impaired Loans
Construction and land development	474		774		23
Commercial real estate	8,255		9,653		195
Residential real estate	18,720		23,714		1,091
Commercial and financial	2,455		912		1,050
Consumer	387		466		43
Totals	$	30,291	$	35,519	$	2,402

Impaired loans also include TDRs where concessions have been granted to borrowers who have experienced financial difficulty. At September 30, 2018 and at December 31, 2017, accruing TDRs totaled $13.8 million and $15.6 million, respectively.

Average impaired loans for the three months ended September 30, 2018 and 2017 were $38.1 million and $30.3 million, respectively. Average impaired loans for the nine months ended September 30, 2018 and 2017 were $34.5 million and $31.2 million, respectively. The impaired loans were measured for impairment based on the value of underlying collateral or the present value of expected future cash flows discounted at the loan’s effective interest rate. The valuation allowance is included in the allowance for loan losses.

Interest payments received on impaired loans are recorded as interest income unless collection of the remaining recorded investment is doubtful, at which time payments received are recorded as reductions in principal. For the three months ended September 30, 2018 and 2017, the Company recorded interest income on impaired loans of $0.5 million and $0.4 million, respectively. For the nine months ended September 30, 2018, and 2017, the Company recorded interest income on impaired loans of $1.4 million and $1.1 million, respectively.

For impaired loans whose impairment is measured based on the present value of expected future cash flows, interest income represents the change in present value attributable to the passage of time, and totaled $36,000 and $169,000, respectively, for the three months ended September 30, 2018 and 2017 and $157,000 and $282,000, respectively, for the nine months ended September 30, 2018 and 2017.

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Allowance for Loan Losses

9 Months Ended

Sep. 30, 2018

Receivables [Abstract]

Allowance for Loan Losses

Allowance for Loan Losses

Activity in the allowance for loan losses for the three month and nine month periods ended September 30, 2018 and 2017 is summarized as follows:

	Three Months Ended September 30, 2018
(In thousands)	Beginning Balance		Provision for Loan Losses			Charge- Offs			Recoveries		TDR Allowance Adjustments			Ending Balance
Construction & land development	$	2,287	$	(221	)	$	—		$	3	$	—		$	2,069
Commercial real estate	9,126		4,191			(1		)	18		(16		)	13,318
Residential real estate	8,850		(1,279		)	(6		)	99		(19		)	7,645
Commercial and financial	7,102		1,739			(842		)	163		—			8,162
Consumer	1,559		1,344			(296		)	65		(1		)	2,671
Totals	$	28,924	$	5,774		$	(1,145	)	$	348	$	(36	)	$	33,865

	Three Months Ended September 30, 2017
(In thousands)	Beginning Balance		Provision for Loan Losses			Charge- Offs			Recoveries		TDR Allowance Adjustments			Ending Balance
Construction & land development	$	1,574	$	(690	)	$	—		$	728	$	—		$	1,612
Commercial real estate	9,923		62			(239		)	175		(15		)	9,906
Residential real estate	7,423		116			(296		)	39		(148		)	7,134
Commercial and financial	5,460		834			(333		)	28		—			5,989
Consumer	1,620		358			(442		)	61		(6		)	1,591
Totals	$	26,000	$	680		$	(1,310	)	$	1,031	$	(169	)	$	26,232

	Nine Months Ended September 30, 2018
(In thousands)	Beginning Balance		Provision for Loan Losses			Charge- Offs			Recoveries		TDR Allowance Adjustments			Ending Balance
Construction & land development	$	1,642	$	414		$	—		$	13	$	—		$	2,069
Commercial real estate	9,285		3,826			(15		)	268		(46		)	13,318
Residential real estate	7,131		(78		)	(33		)	733		(108		)	7,645
Commercial and financial	7,297		3,639			(2,985		)	211		—			8,162
Consumer	1,767		1,587			(931		)	251		(3		)	2,671
Totals	$	27,122	$	9,388		$	(3,964	)	$	1,476	$	(157	)	$	33,865

	Nine Months Ended September 30, 2017
(In thousands)	Beginning Balance		Provision for Loan Losses			Charge- Offs			Recoveries		TDR Allowance Adjustments			Ending Balance
Construction & land development	$	1,219	$	(496	)	$	—		$	891	$	(2	)	$	1,612
Commercial real estate	9,273		410			(341		)	613		(49		)	9,906
Residential real estate	7,483		90			(482		)	266		(223		)	7,134
Commercial and financial	3,636		3,036			(837		)	154		—			5,989
Consumer	1,789		345			(756		)	221		(8		)	1,591
Totals	$	23,400	$	3,385		$	(2,416	)	$	2,145	$	(282	)	$	26,232

The allowance for loan losses is composed of specific allowances for certain impaired loans and general allowances grouped into loan pools based on similar characteristics. The Company’s loan portfolio, excluding PCI loans, and related allowance at September 30, 2018 and December 31, 2017 is shown in the following tables:

	September 30, 2018
	Individually Evaluated for Impairment				Collectively Evaluated for Impairment				Total
(In thousands)	Recorded Investment		Associated Allowance		Recorded Investment		Associated Allowance		Recorded Investment		Associated Allowance
Construction & land development	$	412	$	23	$	375,716	$	2,046	$	376,128	$	2,069
Commercial real estate	15,794		3,591		1,699,743		9,727		1,715,537		13,318
Residential real estate	19,804		869		1,131,519		6,776		1,151,323		7,645
Commercial and financial	1,629		1,483		608,598		6,679		610,227		8,162
Consumer	446		172		192,611		2,499		193,057		2,671
Totals	$	38,085	$	6,138	$	4,008,187	$	27,727	$	4,046,272	$	33,865

	December 31, 2017
	Individually Evaluated for Impairment				Collectively Evaluated for Impairment				Total
(In thousands)	Recorded Investment		Associated Allowance		Recorded Investment		Associated Allowance		Recorded Investment		Associated Allowance
Construction & land development	$	474	$	23	$	341,530	$	1,619	$	342,004	$	1,642
Commercial real estate	8,255		195		1,621,960		9,090		1,630,215		9,285
Residential real estate	18,720		1,091		1,014,465		6,040		1,033,185		7,131
Commercial and financial	2,455		1,050		602,666		6,247		605,121		7,297
Consumer	387		43		189,049		1,724		189,436		1,767
Totals	$	30,291	$	2,402	$	3,769,670	$	24,720	$	3,799,961	$	27,122

Loans collectively evaluated for impairment reported at September 30, 2018 included acquired loans that are not PCI loans. At September 30, 2018, the remaining fair value adjustments for loans acquired was approximately $13.4 million, or approximately 2.0% of the outstanding aggregate PUL balances. At December 31, 2017, the remaining fair value adjustments for loans acquired was approximately $19.4 million, or 2.2% of the outstanding aggregate PUL balances. These amounts represent the fair value discount of each PUL and are accreted into interest income over the remaining lives of the related loans on a level yield basis.

The table below summarizes PCI loans that were individually evaluated for impairment based on expected cash flows at September 30, 2018 and December 31, 2017:

	September 30, 2018				December 31, 2017
	PCI Loans Individually Evaluated for Impairment
(In thousands)	Recorded Investment		Associated Allowance		Recorded Investment		Associated Allowance
Construction & land development	$	129	$	—	$	1,121	$	—
Commercial real estate	10,838		—		9,776		—
Residential real estate	1,356		—		5,626		—
Commercial and financial	728		—		894		—
Consumer	—		—		—		—
Totals	$	13,051	$	—	$	17,417	$	—

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Securities Sold Under Agreements to Repurchase

9 Months Ended

Sep. 30, 2018

Brokers and Dealers [Abstract]

Securities Sold Under Agreements to Repurchase

Securities Sold Under Agreements to Repurchase

Securities sold under agreements to repurchase are accounted for as secured borrowings. For securities sold under agreements to repurchase, the Company is obligated to provide additional collateral in the event of a significant decline in fair value of collateral pledged. Company securities sold under agreements to repurchase and securities pledged were as follows by collateral type and maturity as of: 

(In thousands)	September 30, 2018		December 31, 2017
Fair-Value of Pledged Securities - overnight and continuous
Mortgage-backed securities and collateralized mortgage
obligations of U.S. Government Sponsored Entities	$	189,035	$	216,094

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Noninterest Income and Expense

9 Months Ended

Sep. 30, 2018

Brokers and Dealers [Abstract]

Noninterest Income and Expense

Noninterest Income and Expense

Detail of noninterest income and expenses for the three and nine months ended September 30, 2018 and 2017 are as follows:

	Three Months Ended September 30,						Nine Months Ended September 30,
(In thousands)	2018			2017			2018			2017
Noninterest income
Service charges on deposit accounts	$	2,833		$	2,626		$	8,179		$	7,483
Trust fees	1,083			967			3,143			2,764
Mortgage banking fees	1,135			2,138			3,873			4,962
Brokerage commissions and fees	444			351			1,264			1,079
Marine finance fees	194			137			1,213			597
Interchange income	3,119			2,582			9,137			7,747
BOLI income	1,078			836			3,200			2,326
Other income	2,453			1,844			7,497			4,895
	12,339			11,481			37,506			31,853
Securities losses, net	(48		)	(47		)	(198		)	(26		)
Totals	$	12,291		$	11,434		$	37,308		$	31,827
Noninterest expense
Salaries and wages	$	17,129		$	15,627		$	48,939		$	49,371
Employee benefits	3,205			2,917			9,320			8,920
Outsourced data processing costs	3,493			3,231			10,565			9,956
Telephone/data lines	624			573			1,879			1,753
Occupancy	3,214			2,447			9,647			10,025
Furniture and equipment	1,367			1,191			4,292			4,261
Marketing	1,139			1,298			3,735			3,294
Legal and professional fees	2,019			2,560			6,293			7,968
FDIC assessments	431			548			1,624			1,768
Amortization of intangibles	1,004			839			2,997			2,397
Net (gain)/loss and disposition expense on other real estate owned	(136		)	(297		)	461			(293		)
Other	3,910			3,427			13,057			11,312
Total	$	37,399		$	34,361		$	112,809		$	110,732

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Equity Capital

9 Months Ended

Sep. 30, 2018

Equity [Abstract]

Equity Capital

Equity Capital

The Company is well capitalized and at September 30, 2018, the Company and the Company’s principal banking subsidiary, Seacoast Bank, exceeded the common equity Tier 1 capital ratio (CET1) regulatory threshold of 6.5% for well-capitalized institutions under the Basel III standardized transition approach, as well as risk-based and leverage ratio requirements for well capitalized banks under the regulatory framework for prompt corrective action.

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Contingencies

9 Months Ended

Sep. 30, 2018

Commitments and Contingencies Disclosure [Abstract]

Contingencies

Contingencies

The Company and its subsidiaries, because of the nature of their businesses, are at all times subject to legal actions, threatened or filed. Management presently believes that none of the legal proceedings to which it is a party are likely to have a material adverse effect on the Company’s consolidated financial condition, operating results or cash flows, although no assurance can be given with respect to the ultimate outcome of any such claim or litigation.

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Fair Value

9 Months Ended

Sep. 30, 2018

Fair Value Disclosures [Abstract]

Fair Value

Fair Value

Under ASC 820, fair value measurements for items measured at fair value on a recurring and nonrecurring basis at September 30, 2018 and December 31, 2017 included:

(In thousands)	Fair Value Measurements		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
September 30, 2018
Available for sale debt securities (1)	$	923,206	$	99	$	923,107	$	—
Loans held for sale (2)	16,172		—		16,172		—
Loans (3)	7,268		—		2,255		5,013
Other real estate owned (4)	4,715		—		64		4,651
Equity securities (5)	6,145		6,145		—		—
December 31, 2017
Available for sale debt securities (1)(5)	$	949,460	$	100	$	949,360	$	—
Loans held for sale (2)	24,306		—		24,306		—
Loans (3)	4,192		—		3,454		738
Other real estate owned (4)	7,640		—		60		7,580
Equity securities (5)	6,344		6,344		—		—

(1) See Note D for further detail of fair value of individual investment categories.

(2) Recurring fair value basis determined using observable market data.

(3) See Note F. Nonrecurring fair value adjustments to loans identified as impaired reflect full or partial write-downs that are based on the loan’s observable market price or current appraised value of the collateral in accordance with ASC 310.

(4) Fair value is measured on a nonrecurring basis in accordance with ASC 360.

(5) Prior to adoption of ASU 2016-1 on January 1, 2018, an investment in shares of a mutual fund that invests primarily in CRA-qualified debt securities was classified as an available for sale security. Beginning in 2018, this security is reported at fair value in Other Assets. Fair value is determined based on market quotations.

Loans held for sale: Fair values are based upon estimated values received from independent third party purchasers. These loans are intended for sale and the Company believes that the fair value is the best indicator of the resolution of these loans. Interest income is recorded based on the contractual terms of the loan and in accordance with the Company’s policy on loans held for investment. None of the loans are 90 days or more past due or on nonaccrual as of September 30, 2018 and December 31, 2017. The aggregate fair value and contractual balance of loans held for sale as of September 30, 2018 and December 31, 2017 is as follows:

(In thousands)	September 30, 2018		December 31, 2017
Aggregate fair value	$	16,172	$	24,306
Contractual balance	15,722		23,627
Excess	450		679

Loans: Level 2 loans consist of impaired real estate loans which are collateral dependent. Fair value is based on recent real estate appraisals less estimated costs of sale. For residential real estate impaired loans, appraised values or internal evaluations are based on the comparative sales approach. Level 3 loans consist of commercial and commercial real estate impaired loans. For these loans evaluations may use either a single valuation approach or a combination of approaches, such as comparative sales, cost and/or income approach. A significant unobservable input in the income approach is the estimated capitalization rate for a given piece of collateral. At September 30, 2018, the capitalization rates utilized to determine fair value of the underlying collateral averaged approximately 7.6%. Adjustments to comparable sales may be made by an appraiser to reflect local market conditions or other economic factors and may result in changes in the fair value of an asset over time. As such, the fair value of these impaired loans is considered level 3 in the fair value hierarchy. Impaired loans measured at fair value total $7.3 million with a specific reserve of $6.1 million at September 30, 2018, compared to $4.2 million with a specific reserve of $2.4 million at December 31, 2017.

Other real estate owned: When appraisals are used to determine fair value and the appraisals are based on a market approach, the fair value of other real estate owned (“OREO”) is classified as a level 2 input. When the fair value of OREO is based on appraisals which require significant adjustments to market-based valuation inputs or apply an income approach based on unobservable cash flows, the fair value of OREO is classified as Level 3.

Transfers between levels of the fair value hierarchy are recognized on the actual date of the event or circumstances that caused the transfer, which generally coincides with the Company’s monthly and/or quarter-end valuation process. There were no such transfers during the nine months ended September 30, 2018 and 2017.

For loans classified as level 3, the changes included additions of $8.2 million related to loans that became impaired during 2018, offset by paydowns and chargeoffs of $3.9 million for the nine months ended September 30, 2018.

For OREO classified as level 3 during the nine months ended September 30, 2018, changes included the addition of foreclosed loans of $0.3 million and migrated branches taken out of service of $2.0 million offset by reductions primarily consisting of sales of $5.3 million.

The carrying amount and fair value of the Company’s other financial instruments that are not measured at fair value on a recurring basis in the balance sheet as of September 30, 2018 and December 31, 2017 is as follows:

(In thousands)	Carrying Amount		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
September 30, 2018
Financial Assets
Debt securities held to maturity (1)	$	367,387	$	—	$	353,919	$	—
Time deposits with other banks	9,813		—		—		9,715
Loans, net	4,018,190		—		—		3,982,029
Financial Liabilities
Deposit liabilities	4,643,510		—		—		4,638,270
Federal Home Loan Bank (FHLB) borrowings	261,000		—		—		261,036
Subordinated debt	70,734		—		61,716		—
December 31, 2017
Financial Assets
Debt securities held to maturity (1)	$	416,863	$	—	$	414,470	$	—
Time deposits with other banks	12,553		—		—		12,493
Loans, net	3,786,063		—		—		3,760,754
Financial Liabilities
Deposit liabilities	4,592,720		—		—		4,588,515
Federal Home Loan Bank (FHLB) borrowings	211,000		—		—		211,000
Subordinated debt	70,521		—		61,530		—

(1) See Note D for further detail of individual investment categories.

The short maturity of Seacoast’s assets and liabilities results in having a significant number of financial instruments whose fair value equals or closely approximates carrying value. Such financial instruments are reported in the following balance sheet captions: cash and due from banks, interest bearing deposits with other banks, and securities sold under agreements to repurchase, maturing within 30 days.

The following methods and assumptions were used to estimate the fair value of each class of financial instrument for which it is practicable to estimate that value at September 30, 2018 and December 31, 2017:

Debt securities: U.S. Treasury debt securities are reported at fair value utilizing Level 1 inputs. Other debt securities are reported at fair value utilizing Level 2 inputs. The estimated fair value of a security is determined based on market quotations when available or, if not available, by using quoted market prices for similar securities, pricing models or discounted cash flow analyses, using observable market data where available.

The Company reviews the prices supplied by independent pricing services, as well as their underlying pricing methodologies, for reasonableness and to ensure such prices are aligned with traditional pricing matrices. The fair value of collateralized loan obligations is determined from broker quotes. From time to time, the Company will validate, on a sample basis, prices supplied by the independent pricing service by comparison to prices obtained from other brokers and third-party sources or derived using internal models.

Loans: Fair values are estimated for portfolios of loans with similar financial characteristics. Loans are segregated by type such as commercial or mortgage. Each loan category is further segmented into fixed and adjustable rate interest terms as well as performing and nonperforming categories. The fair value of loans is calculated by discounting scheduled cash flows through the estimated life including prepayment considerations, using estimated market discount rates that reflect the risks inherent in the loan. Prior to adoption of ASU 2016-1 on January 1, 2018, the estimated fair value of the loan portfolio utilized an “entrance price” approach. Beginning in 2018, the fair value approach considers market-driven variables including credit related factors and reflects an “exit price” as defined in ASC 820.

Deposit Liabilities: The fair value of demand deposits, savings accounts and money market deposits is the amount payable at the reporting date. The fair value of fixed maturity certificates of deposit is estimated using the rates currently offered for funding of similar remaining maturities.

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Business Combinations

9 Months Ended

Sep. 30, 2018

Business Combinations [Abstract]

Business Combinations

Business Combinations

Acquisition of GulfShore Bancshares, Inc.

On April 7, 2017, the Company completed its acquisition of GulfShore Bancshares, Inc. ("Gulfshore"), the parent company of GulfShore Bank. Simultaneously, upon completion of the merger, GulfShore’s wholly owned subsidiary bank, GulfShore Bank, was merged with and into Seacoast Bank. GulfShore, headquartered in Tampa, Florida, operated 3 branches in Tampa and St. Petersburg. This acquisition added $358 million in total assets, $251 million in loans and $285 million in deposits to Seacoast.

As a result of this acquisition, the Company expects to enhance its presence in the Tampa, Florida market, expand its customer base and leverage operating cost through economies of scale, and positively affect the Company’s operating results to the extent the Company earns more from interest earning assets than it pays in interest on its interest bearing liabilities.

The Company acquired 100% of the outstanding common stock of GulfShore. Under the terms of the definitive agreement, GulfShore shareholders received, for each share of GulfShore common stock, the combination of $1.47 in cash and 0.4807 shares of Seacoast common stock (based on Seacoast’s closing price of $23.94 per share on April 7, 2017).

(In thousands, except per share data)	April 7, 2017
Shares exchanged for cash	$	8,034
Number of GulfShore Bancshares, Inc. common shares outstanding	5,464
Per share exchange ratio	0.4807
Number of shares of common stock issued	2,627
Multiplied by common stock price per share on April 7, 2017	$	23.94
Value of common stock issued	62,883
Total purchase price	$	70,917

The acquisition was accounted for under the acquisition method in accordance with ASC Topic 805, Business Combinations. The Company recognized goodwill of $37.1 million for this acquisition that is nondeductible for tax purposes. Determining fair values of assets and liabilities, especially the loan portfolio, core deposit intangibles, and deferred taxes, is a complicated process involving significant judgment regarding methods and assumptions used to calculate estimated fair values.

(In thousands)	Initially Reported April 7, 2017		Measurement Period Adjustments		As Adjusted April 7, 2017
Assets:
Cash	$	55,540	$	—	$	55,540
Investment securities	316		—		316
Loans, net	250,876		—		250,876
Fixed assets	1,307		—		1,307
Other real estate owned	13		—		13
Core deposit intangibles	3,927		—		3,927
Goodwill	37,098		—		37,098
Other assets	8,572		—		8,572
Totals	$	357,649	—		$	357,649
Liabilities:
Deposits	$	285,350	$	—	$	285,350
Other liabilities	1,382		—		1,382
Totals	$	286,732	—		$	286,732

The table below presents information with respect to the fair value of acquired loans, as well as their unpaid principal balance (“Book Balance”) at acquisition date.

	April 7, 2017
(In thousands)	Book Balance		Fair Value
Loans:
Single family residential real estate	$	101,281	$	99,598
Commercial real estate	106,729		103,905
Construction/development/land	13,175		11,653
Commercial loans	32,137		32,247
Consumer and other loans	3,554		3,473
Purchased credit-impaired	—		—
Total acquired loans	$	256,876	$	250,876

No loans acquired were specifically identified with credit deficiency factors, pursuant to ASC Topic 310-30. The factors we considered to identify loans as PCI loans were all acquired loans that were nonaccrual, 60 days or more past due, designated as TDR, graded “special mention” or “substandard.”

Loans without specifically identified credit deficiency factors are referred to as PULs for disclosure purposes. These loans were then evaluated to determine estimated fair values as of the acquisition date. Although no specific credit deficiencies were identifiable, we believe there is an element of risk as to whether all contractual cash flows will be eventually received. Factors that were considered included the economic environment both nationally and locally as well as the real estate market particularly in Florida. We have applied ASC Topic 310-20 accounting treatment to the PULs.

The Company believes the deposits assumed from the acquisition have an intangible value. In determining the valuation amount, deposits were analyzed based on factors such as type of deposit, deposit retention, interest rates and age of deposit relationships.

Acquisition of NorthStar Banking Corporation

On October 20, 2017, the Company completed its acquisition of NorthStar Banking Corporation (“NSBC”). Simultaneously, upon completion of the merger of NSBC with and into the Company, NSBC’s wholly owned subsidiary bank, NorthStar Bank (“NorthStar”), was merged with and into Seacoast Bank. NorthStar, headquartered in Tampa, Florida, operated three branches in Tampa. This acquisition added $216 million in total assets, $137 million in loans and $182 million in deposits to Seacoast.

As a result of this acquisition, the Company expects to further enhance its presence in the Tampa, Florida market, expand its customer base and leverage operating cost through economies of scale, and positively affect the Company’s operating results to the extent the Company earns more from interest earning assets than it pays in interest on its interest bearing liabilities.

The Company acquired 100% of the outstanding common stock of NSBC. Under the terms of the definitive agreement, NSBC shareholders received, for each share of NSBC common stock, the combination of $2.40 in cash and 0.5605 shares of Seacoast common stock (based on Seacoast’s closing price of $24.92 per share on October 20, 2017).

(In thousands, except per share data)	October 20, 2017
Shares exchanged for cash	$	4,701
Number of NorthStar Banking Corporation common shares outstanding	1,958
Per share exchange ratio	0.5605
Number of shares of common stock issued	1,098
Multiplied by common stock price per share on October 20, 2017	$	24.92
Value of common stock issued	27,353
Cash paid for NorthStar Banking Corporation vested stock options	801
Total purchase price	$	32,855

The acquisition was accounted for under the acquisition method in accordance with ASC Topic 805, Business Combinations. The Company recognized goodwill of $12.3 million for this acquisition that is nondeductible for tax purposes. Determining fair values of assets and liabilities, especially the loan portfolio, core deposit intangibles, and deferred taxes, is a complicated process involving significant judgment regarding methods and assumptions used to calculate estimated fair values.

(In thousands)	Initially Reported October 20, 2017		Measurement Period Adjustments			As Adjusted October 20, 2017
Assets:
Cash	$	5,485	$	—		$	5,485
Investment securities	56,123		—			56,123
Loans, net	136,832		—			136,832
Fixed assets	2,637		—			2,637
Core deposit intangibles	1,275		—			1,275
Goodwill	12,404		(99		)	12,305
Other assets	1,522		99			1,621
Totals	$	216,278	$	—		$	216,278
Liabilities:
Deposits	$	182,443	$	—		$	182,443
Other liabilities	980		—			980
Totals	$	183,423	$	—		$	183,423

 The table below presents information with respect to the fair value of acquired loans, as well as their unpaid principal balance (“Book Balance”) at acquisition date.

	October 20, 2017
(In thousands)	Book Balance		Fair Value
Loans:
Single family residential real estate	$	15,111	$	15,096
Commercial real estate	73,139		69,554
Construction/development/land	11,706		10,390
Commercial loans	31,200		30,854
Consumer and other loans	6,761		6,645
Purchased Credit Impaired	5,527		4,293
Total acquired loans	$	143,444	$	136,832

For the loans acquired we first segregated all acquired loans with specifically identified credit deficiency factors. The factors we considered to identify loans as PCI loans were all acquired loans that were nonaccrual, 60 days or more past due, designated as TDR, graded “special mention” or “substandard.” These loans were then evaluated to determine estimated fair values as of the acquisition date. As required by generally accepted accounting principles, we are accounting for these loans pursuant to ASC Topic 310-30. The table below summarizes the total contractually required principal and interest cash payments, management’s estimate of expected total cash payments and fair value of the loans as of October 20, 2017 for purchased credit impaired loans. Contractually required principal and interest payments have been adjusted for estimated prepayments.

(In thousands)	October 20, 2017
Contractually required principal and interest	$	5,596
Non-accretable difference	(689		)
Cash flows expected to be collected	4,907
Accretable yield	(614		)
Total purchased credit-impaired loan acquired	$	4,293

Loans without specifically identified credit deficiency factors are referred to as PULs for disclosure purposes. These loans were then evaluated to determine estimated fair values as of the acquisition date. Although no specific credit deficiencies were identifiable, we believe there is an element of risk as to whether all contractual cash flows will be eventually received. Factors that were considered included the economic environment both nationally and locally as well as the real estate market particularly in Florida. We have applied ASC Topic 310-20 accounting treatment to the PULs.

The Company believes the deposits assumed from the acquisition have an intangible value. In determining the valuation amount, deposits were analyzed based on factors such as type of deposit, deposit retention, interest rates and age of deposit relationships.

Acquisition of Palm Beach Community Bank

On November 3, 2017, the Company completed its acquisition of Palm Beach Community Bank (“PBCB”). PBCB was merged with and into Seacoast Bank. This acquisition added $357 million in total assets, $270 million in loans and $269 million in deposits to Seacoast. PBCB, headquartered in West Palm Beach, Florida, operated four branches in West Palm Beach.

As a result of this acquisition, the Company expects to enhance its presence in the Palm Beach, Florida market, expand its customer base and leverage operating cost through economies of scale, and positively affect the Company’s operating results to the extent the Company earns more from interest earning assets than it pays in interest on its interest bearing liabilities.

The Company acquired 100% of the outstanding common stock of PBCB. Under the terms of the definitive agreement, PBCB shareholders received, for each share of PBCB common stock, the combination of $6.26 in cash and 0.9240 shares of Seacoast common stock (based on Seacoast’s closing price of $24.31 per share on November 3, 2017).

(In thousands, except per share data)	November 3, 2017
Shares exchanged for cash	$	15,694
Number of Palm Beach Community Bank common shares outstanding	2,507
Per share exchange ratio	0.9240
Number of shares of common stock issued	2,316
Multiplied by common stock price per share on November 3, 2017	$	24.31
Value of common stock issued	56,312
Total purchase price	$	72,006

The acquisition was accounted for under the acquisition method in accordance with ASC Topic 805, Business Combinations. The Company recognized goodwill of $34.8 million for this acquisition that is nondeductible for tax purposes. Determining fair values of assets and liabilities, especially the loan portfolio, core deposit intangibles, and deferred taxes, is a complicated process involving significant judgment regarding methods and assumptions used to calculate estimated fair values.

(In thousands)	Initially Reported November 3, 2017		Measurement Period Adjustments			As Adjusted November 3, 2017
Assets:
Cash	$	9,301	$	—		$	9,301
Investment securities	22,098		—			22,098
Loans, net	272,090		(1,772		)	270,318
Fixed assets	7,641		—			7,641
Core deposit intangibles	2,523		—			2,523
Goodwill	33,428		1,323			34,751
Other assets	9,909		449			10,358
Totals	$	356,990	$	—		$	356,990
Liabilities:
Deposits	$	268,633	$	—		$	268,633
Other liabilities	16,351		—			16,351
Totals	$	284,984	$	—		$	284,984

The table below presents information with respect to the fair value of acquired loans, as well as their unpaid principal balance (“Book Balance”) at acquisition date.

	As Adjusted November 3, 2017
(In thousands)	Book Balance		Fair Value
Loans:
Single family residential real estate	$	30,153	$	30,990
Commercial real estate	134,705		132,089
Construction/development/land	69,686		67,425
Commercial loans	36,076		35,876
Consumer and other loans	179		172
Purchased Credit Impaired	4,768		3,766
Total acquired loans	$	275,567	$	270,318

For the loans acquired we first segregated all acquired loans with specifically identified credit deficiency factors. The factors we considered to identify loans as PCI loans were all acquired loans that were nonaccrual, 60 days or more past due, designated as TDR, graded “special mention” or “substandard.” These loans were then evaluated to determine estimated fair values as of the acquisition date. As required by generally accepted accounting principles, we are accounting for these loans pursuant to ASC Topic 310-30. The table below summarizes the total contractually required principal and interest cash payments, management’s estimate of expected total cash payments and fair value of the loans as of November 3, 2017 for purchased credit impaired loans. Contractually required principal and interest payments have been adjusted for estimated prepayments.

(In thousands)	November 3, 2017
Contractually required principal and interest	$	4,768
Non-accretable difference	(1,002		)
Cash flows expected to be collected	3,766
Accretable yield	—
Total purchased credit-impaired loan acquired	$	3,766

Loans without specifically identified credit deficiency factors are referred to as PULs for disclosure purposes. These loans were then evaluated to determine estimated fair values as of the acquisition date. Although no specific credit deficiencies were identifiable, we believe there is an element of risk as to whether all contractual cash flows will be eventually received. Factors that were considered included the economic environment both nationally and locally as well as the real estate market particularly in Florida. We have applied ASC Topic 310-20 accounting treatment to the PULs.

The Company believes the deposits assumed from the acquisition have an intangible value. In determining the valuation amount, deposits were analyzed based on factors such as type of deposit, deposit retention, interest rates and age of deposit relationships.

Pro-Forma Information

Pro-forma data for the three and nine months ended September 30, 2017 as if the acquisitions of GulfShore, NSBC and PBCB occurred at the beginning of 2017 is as follows:

	Three Months Ended September 30,		Nine Months Ended September 30,
(In thousands, except per share amounts)	2017		2017
Net interest income	$	51,115	$	146,668
Net income	16,321		37,149
EPS - basic	0.35		0.81
EPS - diluted	0.35		0.80

Acquisition of First Green Bancorp, Inc.

On October 19, 2018, the Company completed its acquisition of First Green Bancorp, Inc ("First Green"). Simultaneously, upon completion of the merger of First Green with and into the Company, First Green's wholly owned subsidiary bank, First Green Bank, was merged with and into Seacoast Bank. Prior to the acquisition , First Green operated seven branches in the Orlando, Daytona, and Fort Lauderdale markets. The Company acquired 100% of the outstanding common stock of First Green. Under the terms of the definitive agreement, each share of First Green common stock was converted into the right to receive 0.7324 shares of Seacoast common stock.

(In thousands, except per share data)	October 19, 2018
Number of First Green common shares outstanding	5,462
Per share exchange ratio	0.7324
Number of shares of Seacoast common stock issued	4,000
Multiplied by common stock price per share on October 19, 2018	$	26.87
Value of common stock issued	107,486
Cash paid for First Green stock options	6,558
Total purchase price	$	114,044

The acquisition of First Green will be accounted for under the acquisition method of accounting in accordance with ASC Topic 805, Business Combinations. The Company's assessment of the fair value of assets acquired and liabilities assumed as of the acquisition date is incomplete at the time of this filing; therefore, certain disclosures have been omitted. The Company expects to recognize goodwill in this transaction, which is expected to be nondeductible for tax purposes.

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Basis of Presentation (Policies)

9 Months Ended

Sep. 30, 2018

Accounting Policies [Abstract]

Basis of Presentation

Basis of Presentation

The accompanying unaudited condensed consolidated financial statements of Seacoast Banking Corporation of Florida and its subsidiaries (the "Company") have been prepared in accordance with U.S. generally accepted accounting principles for interim financial information and with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by U.S. generally accepted accounting principles for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. Certain prior period amounts have been reclassified to conform to the current period presentation.

Operating results for the nine months ended September 30, 2018 are not necessarily indicative of the results that may be expected for the year ending December 31, 2018 or any other period. For further information, refer to the consolidated financial statements and footnotes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017.

Reclassification

Certain prior period amounts have been reclassified to conform to the current period presentation.

Adoption of New Accounting Pronouncements and Recent Issued Accounting Standards, Not Yet Adopted

Adoption of new accounting pronouncements

On January 1, 2018, we adopted Financial Accounting Standards Board (“FASB”) Accounting Standards Update (“ASU”) 2014-9, “Revenue from Contracts with Customers,” and all the related amendments (collectively, “ASC 606”) using the modified retrospective approach applied to all contracts in place at that date. Adoption had no material impact on the Company’s consolidated financial statements including no change to the amount or timing of revenue recognized for contracts within the scope of the new standard. Activity in the scope of the new standard includes:

• Service Charges on Deposits: Seacoast National Bank ("Seacoast Bank") offers a variety of deposit-related services to its customers through several delivery channels including branch offices, ATMs, telephone, mobile, and internet banking. Transaction-based fees are recognized when services, each of which represents a performance obligation, are satisfied. Service fees may be assessed monthly, quarterly, or annually; however, the account agreements to which these fees relate can be cancelled at any time by Seacoast and/or the customer. Therefore, the contract term is considered a single day (a day-to-day contract).

• Trust Fees: The Company earns trust fees from fiduciary services provided to trust customers which include custody of assets, recordkeeping, collection and distribution of funds. Fees are earned over time and accrued monthly as the Company provides services, and are generally assessed based on the market value of the trust assets under management at a particular date or over a particular period.

• Brokerage Commissions and Fees: The Company earns commissions and fees from investment brokerage services provided to its customers through an arrangement with a third-party service provider. Commissions received from the third-party service provider are recorded monthly and are based upon customer activity. Fees are earned over time and accrued monthly as services are provided. The Company acts as an agent in this arrangement and therefore presents the brokerage commissions and fees net of related costs.

• Interchange Income: Fees earned on card transactions depend upon the volume of activity, as well as the fees permitted by the payment network. Such fees are recognized by the Company upon fulfilling its performance obligation to approve the card transaction.

On January 1, 2018, we adopted ASU 2016-1, “Financial Instruments – Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities.” Upon adoption, we reclassified $0.1 million of accumulated unrealized loss pertaining to an equity investment previously classified as available for sale from Accumulated Other Comprehensive Income to Retained Earnings.

Recently Issued Accounting Standards, Not Yet Adopted

The following provides a brief description of accounting standards that have been issued but are not yet adopted that could have a material effect on the Company's financial statements:

ASU 2016-02, Leases (Topic 842)
Description	In February 2016, the FASB amended existing guidance that requires lessees recognize the following for all leases at the commencement date: 1. A lease liability, which is a lessee’s obligation to make lease payments arising from a lease, measured on a discounted basis. 2. A right-of-use specified asset, which is an asset that represents the lessee’s right to use, or control the use of, a specified asset for the lease term. Under the new guidance, lessor accounting is largely unchanged. Certain targeted improvements were made to align lessor accounting with the lessee accounting model and Topic 606, Revenue from Contracts with Customers. In July 2018, the FASB issued ASU 2018-11, which provides an additional optional transition method. The additional transition method allows entities to initially apply the new lease standard at the adoption date by recognizing a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. Consequently, an entity’s reporting for the comparative periods presented in the financial statements in which the entity adopts the new lease standard would continue to be in accordance with current GAAP (Topic 840), including disclosures.
Date of Adoption	This amendment is effective for public business entities for reporting periods beginning after December 15, 2018, including interim periods within that reporting period. Early adoption is permitted.
Effect on the Consolidated Financial Statements	The Company is in the process of evaluating its existing leases, which are primarily operating leases of branch properties and equipment, to determine the amounts to be recognized as right-of-use assets and lease liabilities.  The Company will adopt the new standard effective January 1, 2019. The effect of adoption on the Company’s consolidated statements of income is not expected to be material.

ASU 2016-13, Financial Instruments –Credit Losses (Topic 326)
Description	In June 2016, the FASB issued guidance to replace the incurred loss model with an expected loss model, which is referred to as the current expected credit loss (CECL) model. The CECL model is applicable to the measurement of credit losses on financial assets measured at amortized cost, including loan receivables and held to maturity debt securities. It also applies to off-balance sheet credit exposures including loan commitments, standby letters of credit, financial guarantees and other similar instruments.
Date of Adoption	This amendment is effective for public business entities for reporting periods beginning after December 15, 2019, including interim periods within that reporting period. Early adoption is permitted only as of annual reporting periods after December 15, 2018, including interim reporting periods within that period.
Effect on the Consolidated Financial Statements	The Company’s transition oversight committee is in the process of evaluating and implementing changes to credit loss estimation models and related processes. Updates to business processes and the documentation of accounting policy decisions are ongoing. The Company may recognize an increase in the allowance for loan losses upon adoption, recorded as a one-time effect cumulative adjustment to retained earnings. However, the magnitude of the impact on the Company's consolidated financial statements has not yet been determined. The Company will adopt this accounting standard effective January 1, 2020.

ASU 2017-04, Intangibles – Goodwill and Other (Topic 350): Simplifying the Test for Goodwill
Description	In January 2017, the FASB amended the existing guidance to simplify the goodwill impairment measurement test by eliminating Step 2. The amendment requires the Company to perform the goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount and recognizing an impairment charge for the amount by which the carrying amount exceeds the fair value. Additionally, an entity should consider the tax effects from any tax deductible goodwill on the carrying amount when measuring the impairment loss.
Date of Adoption	This amendment is effective for public business entities for reporting periods beginning after December 15, 2019, including interim periods within that reporting period. Early adoption is permitted on annual goodwill impairment tests performed after January 1, 2017.
Effect on the Consolidated Financial Statements	The impact to the Company's consolidated financial statements from the adoption of this pronouncement is not expected to be material.

ASU 2017-08, Receivables-Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased callable Debt Securities
Description	In March 2017, the FASB issued guidance which requires entities to amortize premiums on certain purchased callable debt securities to their earliest call date. The accounting for purchased callable debt securities held at a discount did not change. Amortizing the premium to the earliest call date generally aligns interest income recognition with the economics of instruments. This guidance requires a modified retrospective approach under which a cumulative adjustment will be made to retained earnings as of the beginning of the period in which it is adopted.
Date of Adoption	The amendments are effective for public business entities for annual periods beginning after December 15, 2018, including interim periods within those periods.
Effect on the Consolidated Financial Statements	The impact to the Company's consolidated financial statements from the adoption of this pronouncement is not expected to be material.

ASU 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities
Description	In August 2017, the FASB provided guidance to improve the financial reporting of hedging relationships to better portray the economic results of an entity’s risk management activities in its financial statements. The amendments also simplify the application of the hedge accounting guidance.
Date of Adoption	The amendments are effective for public business entities for annual periods beginning after December 15, 2018, including interim periods within those periods.
Effect on the Consolidated Financial Statements	The impact to the Company's consolidated financial statements from the adoption of this pronouncement is not expected to be material.

ASU 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement
Description	On August 28, 2018, the FASB issued ASU 2018-13, which changes the disclosure requirements on fair value measurements in Topic 820. The amendments in this ASU are the result of a broader disclosure project called FASB Concepts Statement, Conceptual Framework for Financial Reporting - Chapter 8: Notes to Financial Statements. The ASU modifies or removes certain existing disclosures, and adds certain new disclosures.
Date of Adoption	The amendments are effective for public business entities for annual periods beginning after December 15, 2019, including interim periods within those periods. Early adoption is permitted for any eliminated or modified disclosure upon issuance of the ASU.
Effect on the Consolidated Financial Statements	The impact to the Company's consolidated financial statements from the adoption of this pronouncement is not expected to be material.

Use of Estimates

Use of Estimates The preparation of these condensed consolidated financial statements required the use of certain estimates by management in determining the Company’s assets, liabilities, revenues and expenses. Specific areas, among others, requiring the application of management’s estimates include determination of the allowance for loan losses, the valuation of investment securities available for sale, fair value of impaired loans, contingent liabilities, fair value of other real estate owned, and the valuation of deferred tax assets. Actual results could differ from those estimates.

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Recently Issued Accounting Standards, Not Yet Adopted (Tables)

9 Months Ended

Sep. 30, 2018

Accounting Policies [Abstract]

Schedule of Recently Issued Accounting Standards, Not Yet Adopted

The following provides a brief description of accounting standards that have been issued but are not yet adopted that could have a material effect on the Company's financial statements:

ASU 2016-02, Leases (Topic 842)
Description	In February 2016, the FASB amended existing guidance that requires lessees recognize the following for all leases at the commencement date: 1. A lease liability, which is a lessee’s obligation to make lease payments arising from a lease, measured on a discounted basis. 2. A right-of-use specified asset, which is an asset that represents the lessee’s right to use, or control the use of, a specified asset for the lease term. Under the new guidance, lessor accounting is largely unchanged. Certain targeted improvements were made to align lessor accounting with the lessee accounting model and Topic 606, Revenue from Contracts with Customers. In July 2018, the FASB issued ASU 2018-11, which provides an additional optional transition method. The additional transition method allows entities to initially apply the new lease standard at the adoption date by recognizing a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. Consequently, an entity’s reporting for the comparative periods presented in the financial statements in which the entity adopts the new lease standard would continue to be in accordance with current GAAP (Topic 840), including disclosures.
Date of Adoption	This amendment is effective for public business entities for reporting periods beginning after December 15, 2018, including interim periods within that reporting period. Early adoption is permitted.
Effect on the Consolidated Financial Statements	The Company is in the process of evaluating its existing leases, which are primarily operating leases of branch properties and equipment, to determine the amounts to be recognized as right-of-use assets and lease liabilities.  The Company will adopt the new standard effective January 1, 2019. The effect of adoption on the Company’s consolidated statements of income is not expected to be material.

ASU 2016-13, Financial Instruments –Credit Losses (Topic 326)
Description	In June 2016, the FASB issued guidance to replace the incurred loss model with an expected loss model, which is referred to as the current expected credit loss (CECL) model. The CECL model is applicable to the measurement of credit losses on financial assets measured at amortized cost, including loan receivables and held to maturity debt securities. It also applies to off-balance sheet credit exposures including loan commitments, standby letters of credit, financial guarantees and other similar instruments.
Date of Adoption	This amendment is effective for public business entities for reporting periods beginning after December 15, 2019, including interim periods within that reporting period. Early adoption is permitted only as of annual reporting periods after December 15, 2018, including interim reporting periods within that period.
Effect on the Consolidated Financial Statements	The Company’s transition oversight committee is in the process of evaluating and implementing changes to credit loss estimation models and related processes. Updates to business processes and the documentation of accounting policy decisions are ongoing. The Company may recognize an increase in the allowance for loan losses upon adoption, recorded as a one-time effect cumulative adjustment to retained earnings. However, the magnitude of the impact on the Company's consolidated financial statements has not yet been determined. The Company will adopt this accounting standard effective January 1, 2020.

ASU 2017-04, Intangibles – Goodwill and Other (Topic 350): Simplifying the Test for Goodwill
Description	In January 2017, the FASB amended the existing guidance to simplify the goodwill impairment measurement test by eliminating Step 2. The amendment requires the Company to perform the goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount and recognizing an impairment charge for the amount by which the carrying amount exceeds the fair value. Additionally, an entity should consider the tax effects from any tax deductible goodwill on the carrying amount when measuring the impairment loss.
Date of Adoption	This amendment is effective for public business entities for reporting periods beginning after December 15, 2019, including interim periods within that reporting period. Early adoption is permitted on annual goodwill impairment tests performed after January 1, 2017.
Effect on the Consolidated Financial Statements	The impact to the Company's consolidated financial statements from the adoption of this pronouncement is not expected to be material.

ASU 2017-08, Receivables-Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased callable Debt Securities
Description	In March 2017, the FASB issued guidance which requires entities to amortize premiums on certain purchased callable debt securities to their earliest call date. The accounting for purchased callable debt securities held at a discount did not change. Amortizing the premium to the earliest call date generally aligns interest income recognition with the economics of instruments. This guidance requires a modified retrospective approach under which a cumulative adjustment will be made to retained earnings as of the beginning of the period in which it is adopted.
Date of Adoption	The amendments are effective for public business entities for annual periods beginning after December 15, 2018, including interim periods within those periods.
Effect on the Consolidated Financial Statements	The impact to the Company's consolidated financial statements from the adoption of this pronouncement is not expected to be material.

ASU 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities
Description	In August 2017, the FASB provided guidance to improve the financial reporting of hedging relationships to better portray the economic results of an entity’s risk management activities in its financial statements. The amendments also simplify the application of the hedge accounting guidance.
Date of Adoption	The amendments are effective for public business entities for annual periods beginning after December 15, 2018, including interim periods within those periods.
Effect on the Consolidated Financial Statements	The impact to the Company's consolidated financial statements from the adoption of this pronouncement is not expected to be material.

ASU 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement
Description	On August 28, 2018, the FASB issued ASU 2018-13, which changes the disclosure requirements on fair value measurements in Topic 820. The amendments in this ASU are the result of a broader disclosure project called FASB Concepts Statement, Conceptual Framework for Financial Reporting - Chapter 8: Notes to Financial Statements. The ASU modifies or removes certain existing disclosures, and adds certain new disclosures.
Date of Adoption	The amendments are effective for public business entities for annual periods beginning after December 15, 2019, including interim periods within those periods. Early adoption is permitted for any eliminated or modified disclosure upon issuance of the ASU.
Effect on the Consolidated Financial Statements	The impact to the Company's consolidated financial statements from the adoption of this pronouncement is not expected to be material.

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Earnings per Share (Tables)

9 Months Ended

Sep. 30, 2018

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

The dilutive impact of restricted stock and stock options is calculated under the treasury method.

	Three Months Ended September 30,				Nine Months Ended September 30,
(Dollars in thousands, except per share data)	2018		2017		2018		2017
Basic earnings per share
Net income	$	16,322	$	14,216	$	51,313	$	29,818
Average common stock outstanding	47,205,383		43,151,248		47,108,302		41,626,356
Net income per share	$	0.35	$	0.33	$	1.09	$	0.72
Diluted earnings per share
Net income	$	16,322	$	14,216	$	51,313	$	29,818
Average common stock outstanding	47,205,383		43,151,248		47,108,302		41,626,356
Add: Dilutive effect of employee restricted stock and stock options	823,947		640,860		794,791		671,780
Average diluted stock outstanding	48,029,330		43,792,108		47,903,093		42,298,136
Net income per share	$	0.34	$	0.32	$	1.07	$	0.70

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Securities (Tables)

9 Months Ended

Sep. 30, 2018

Investments, Debt and Equity Securities [Abstract]

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

The amortized cost, gross unrealized gains and losses and fair value of securities available for sale and held to maturity at September 30, 2018 and December 31, 2017⁽¹⁾ are summarized as follows:

	September 30, 2018
(In thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Debt securities available for sale
U.S. Treasury securities and obligations of U.S. Government Entities	$	7,486	$	114	$	(57	)	$	7,543
Mortgage-backed securities and collateralized mortgage obligations of U.S. Government Sponsored Entities	597,689		153		(24,660		)	573,182
Private mortgage-backed securities and collateralized mortgage obligations	75,485		925		(318		)	76,092
Collateralized loan obligations	223,419		137		(566		)	222,990
Obligations of state and political subdivisions	43,951		261		(813		)	43,399
Totals	$	948,030	$	1,590	$	(26,414	)	$	923,206
Debt securities held to maturity
Mortgage-backed securities and collateralized mortgage obligations of U.S. Government Sponsored Entities	$	313,667	$	—	$	(13,557	)	$	300,110
Private mortgage-backed securities and collateralized mortgage obligations	21,720		181		(131		)	21,770
Collateralized loan obligations	32,000		58		(19		)	32,039
Totals	$	367,387	$	239	$	(13,707	)	$	353,919

	December 31, 2017
(In thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Debt securities available for sale
U.S. Treasury securities and obligations of U.S. Government Entities	$	9,475	$	274	$	(5	)	$	9,744
Mortgage-backed securities and collateralized mortgage obligations of U.S. Government Sponsored Entities	560,396		1,163		(8,034		)	553,525
Private mortgage-backed securities and collateralized mortgage obligations	75,152		1,154		(285		)	76,021
Collateralized loan obligations	263,579		798		(68		)	264,309
Obligations of state and political subdivisions	45,118		813		(70		)	45,861
Totals	$	953,720	$	4,202	$	(8,462	)	$	949,460
Debt securities held to maturity
Mortgage-backed securities and collateralized mortgage obligations of U.S. Government Sponsored Entities	$	353,541	$	802	$	(4,159	)	$	350,184
Private mortgage-backed securities and collateralized mortgage obligations	22,799		714		(53		)	23,460
Collateralized loan obligations	40,523		303		—			40,826
Totals	$	416,863	$	1,819	$	(4,212	)	$	414,470

(1) December 31, 2017 balances in the tables above reflect certain reclassifications between categories.  

Summary of Amortized Cost and Fair Value of Held-to-Maturity Securities

The amortized cost, gross unrealized gains and losses and fair value of securities available for sale and held to maturity at September 30, 2018 and December 31, 2017⁽¹⁾ are summarized as follows:

	September 30, 2018
(In thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Debt securities available for sale
U.S. Treasury securities and obligations of U.S. Government Entities	$	7,486	$	114	$	(57	)	$	7,543
Mortgage-backed securities and collateralized mortgage obligations of U.S. Government Sponsored Entities	597,689		153		(24,660		)	573,182
Private mortgage-backed securities and collateralized mortgage obligations	75,485		925		(318		)	76,092
Collateralized loan obligations	223,419		137		(566		)	222,990
Obligations of state and political subdivisions	43,951		261		(813		)	43,399
Totals	$	948,030	$	1,590	$	(26,414	)	$	923,206
Debt securities held to maturity
Mortgage-backed securities and collateralized mortgage obligations of U.S. Government Sponsored Entities	$	313,667	$	—	$	(13,557	)	$	300,110
Private mortgage-backed securities and collateralized mortgage obligations	21,720		181		(131		)	21,770
Collateralized loan obligations	32,000		58		(19		)	32,039
Totals	$	367,387	$	239	$	(13,707	)	$	353,919

	December 31, 2017
(In thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Debt securities available for sale
U.S. Treasury securities and obligations of U.S. Government Entities	$	9,475	$	274	$	(5	)	$	9,744
Mortgage-backed securities and collateralized mortgage obligations of U.S. Government Sponsored Entities	560,396		1,163		(8,034		)	553,525
Private mortgage-backed securities and collateralized mortgage obligations	75,152		1,154		(285		)	76,021
Collateralized loan obligations	263,579		798		(68		)	264,309
Obligations of state and political subdivisions	45,118		813		(70		)	45,861
Totals	$	953,720	$	4,202	$	(8,462	)	$	949,460
Debt securities held to maturity
Mortgage-backed securities and collateralized mortgage obligations of U.S. Government Sponsored Entities	$	353,541	$	802	$	(4,159	)	$	350,184
Private mortgage-backed securities and collateralized mortgage obligations	22,799		714		(53		)	23,460
Collateralized loan obligations	40,523		303		—			40,826
Totals	$	416,863	$	1,819	$	(4,212	)	$	414,470

(1) December 31, 2017 balances in the tables above reflect certain reclassifications between categories.  

Summary of Investments Classified by Contractual Maturity

The amortized cost and fair value of debt securities available for sale and held to maturity at September 30, 2018, by contractual maturity, are shown below. Expected maturities will differ from contractual maturities because prepayments of the underlying collateral for these securities may occur, due to the right to call or repay obligations with or without call or prepayment penalties. Securities not due at a single maturity date are shown separately.

	Held to Maturity				Available for Sale
(In thousands)	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Due in less than one year	$	—	$	—	$	13,832	$	13,781
Due after one year through five years	—		—		79,637		79,582
Due after five years through ten years	32,000		32,039		177,911		177,196
Due after ten years	—		—		3,476		3,373
	32,000		32,039		274,856		273,932
Mortgage-backed securities and collateralized mortgage obligations of U.S. Government Sponsored Entities	313,667		300,110		597,689		573,182
Private mortgage-backed securities and collateralized mortgage obligations	21,720		21,770		75,485		76,092
Totals	$	367,387	$	353,919	$	948,030	$	923,206

Schedule of Debt Securities in Unrealized Loss Position

The tables below indicate the fair value of debt securities with unrealized losses and the period of time for which these losses were outstanding at September 30, 2018 and December 31, 2017, respectively.

	September 30, 2018
	Less than 12 months					12 months or longer					Total
(In thousands)	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
U.S. Treasury securities and obligations of U.S. Government Entities	$	7,543	$	(57	)	$	—	$	—		$	7,543	$	(57	)
Mortgage-backed securities and collateralized mortgage obligations of U.S. Government Sponsored Entities	456,356		(15,703		)	416,936		(22,514		)	873,292		(38,217		)
Private mortgage-backed securities and collateralized mortgage obligations	84,026		(251		)	13,836		(197		)	97,862		(448		)
Collateralized loan obligations	255,030		(585		)	—		—			255,030		(585		)
Obligations of state and political subdivisions	40,136		(672		)	3,262		(142		)	43,398		(814		)
Totals	$	843,091	$	(17,268	)	$	434,034	$	(22,853	)	$	1,277,125	$	(40,121	)

	December 31, 2017
	Less than 12 months					12 months or longer					Total
(In thousands)	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
U.S. Treasury securities and obligations of U.S. Government Entities	$	1,107	$	(5	)	$	—	$	—		$	1,107	$	(5	)
Mortgage-backed securities and collateralized mortgage obligations of U.S. Government Sponsored Entities	304,723		(2,047		)	413,725		(10,146		)	718,448		(12,193		)
Private mortgage-backed securities and collateralized mortgage obligations	—		—			20,744		(338		)	20,744		(338		)
Collateralized loan obligations	14,933		(68		)	—		—			14,933		(68		)
Obligations of state and political subdivisions	5,414		(14		)	5,864		(56		)	11,278		(70		)
Totals	$	326,177	$	(2,134	)	$	440,333	$	(10,540	)	$	766,510	$	(12,674	)

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Loans (Tables)

9 Months Ended

Sep. 30, 2018

Receivables [Abstract]

Schedule of Portfolio Loans, Purchased Credit Impaired Loans and Purchased Unimpaired Loans

Information pertaining to portfolio loans, purchased credit impaired (“PCI”) loans, and purchased unimpaired loans (“PUL”) is as follows:

	September 30, 2018
(In thousands)	Portfolio Loans		PCI Loans		PULs		Total
Construction and land development	$	289,449	$	129	$	86,679	$	376,257
Commercial real estate	1,357,721		10,838		358,140		1,726,699
Residential real estate	994,575		1,356		156,709		1,152,640
Commercial and financial	554,627		728		55,600		610,955
Consumer	187,199		—		5,573		192,772
Totals (1)	$	3,383,571	$	13,051	$	662,701	$	4,059,323

	December 31, 2017
(In thousands)	Portfolio Loans		PCI Loans		PULs		Total
Construction and land development	$	215,315	$	1,121	$	126,689	$	343,125
Commercial real estate	1,170,618		9,776		459,598		1,639,992
Residential real estate	845,420		5,626		187,764		1,038,810
Commercial and financial	512,430		894		92,690		606,014
Consumer	178,826		—		10,610		189,436
Totals (1)	$	2,922,609	$	17,417	$	877,351	$	3,817,377

(1) Net loan balances as of September 30, 2018 and December 31, 2017 include deferred costs of $15.9 million and $12.9 million for each period, respectively.

Schedule of Past Due Financing Receivables

The following tables present the contractual delinquency of the recorded investment by class of loans as of:

	September 30, 2018
(In thousands)	Current		Accruing 30-59 Days Past Due		Accruing 60-89 Days Past Due		Accruing Greater Than 90 Days		Nonaccrual		Total Financing Receivables
Portfolio Loans
Construction and land development	$	289,234	$	—	$	—	$	—	$	215	$	289,449
Commercial real estate	1,345,174		3,173		—		—		9,374		1,357,721
Residential real estate	984,874		1,202		104		—		8,395		994,575
Commercial and financial	548,861		2,050		2,521		359		836		554,627
Consumer	185,902		1,119		—		—		178		187,199
Totals	3,354,045		7,544		2,625		359		18,998		3,383,571
Purchased Unimpaired Loans
Construction and land development	86,679		—		—		—		—		86,679
Commercial real estate	355,541		1,181		—		696		722		358,140
Residential real estate	151,125		1,705		124		—		3,755		156,709
Commercial and financial	50,427		4,011		733		—		429		55,600
Consumer	5,568		5		—		—		—		5,573
Totals	649,340		6,902		857		696		4,906		662,701
Purchased Credit Impaired Loans
Construction and land development	129		—		—		—		—		129
Commercial real estate	9,427		—		—		—		1,411		10,838
Residential real estate	552		—		—		—		804		1,356
Commercial and financial	707		—		—		—		21		728
Consumer	—		—		—		—		—		—
Totals	10,815		—		—		—		2,236		13,051
Totals	$	4,014,200	$	14,446	$	3,482	$	1,055	$	26,140	$	4,059,323

	December 31, 2017
(In thousands)	Current		Accruing 30-59 Days Past Due		Accruing 60-89 Days Past Due		Accruing Greater Than 90 Days		Nonaccrual		Total Financing Receivables
Portfolio Loans
Construction and land development	$	215,077	$	—	$	—	$	—	$	238	$	215,315
Commercial real estate	1,165,738		2,605		585		—		1,690		1,170,618
Residential real estate	836,117		812		75		—		8,416		845,420
Commercial and financial	507,501		2,776		26		—		2,127		512,430
Consumer	178,676		52		—		—		98		178,826
Totals	2,903,109		6,245		686		—		12,569		2,922,609
Purchased Unimpaired Loans
Construction and land development	126,655		34		—		—		—		126,689
Commercial real estate	457,899		979		—		—		720		459,598
Residential real estate	186,549		128		87		—		1,000		187,764
Commercial and financial	92,315		54		—		—		321		92,690
Consumer	10,610		—		—		—		—		10,610
Totals	874,028		1,195		87		—		2,041		877,351
Purchased Credit Impaired Loans
Construction and land development	1,121		—		—		—		—		1,121
Commercial real estate	9,352		—		—		—		424		9,776
Residential real estate	544		642		—		—		4,440		5,626
Commercial and financial	844		—		—		—		50		894
Consumer	—		—		—		—		—		—
Totals	11,861		642		—		—		4,914		17,417
Totals	$	3,788,998	$	8,082	$	773	$	—	$	19,524	$	3,817,377

Schedule of Risk Categories of Loans by Class of Loans

The following tables present the risk category of loans by class of loans based on the most recent analysis performed as of September 30, 2018 and December 31, 2017:

	September 30, 2018
(In thousands)	Pass		Special Mention		Substandard		Doubtful		Total
Construction and land development	$	364,903	$	6,036	$	5,318	$	—	$	376,257
Commercial real estate	1,673,457		24,328		28,914		—		1,726,699
Residential real estate	1,126,238		2,985		23,417		—		1,152,640
Commercial and financial	602,973		1,895		6,030		57		610,955
Consumer	189,223		2,900		649		—		192,772
Totals	$	3,956,794	$	38,144	$	64,328	$	57	$	4,059,323

	December 31, 2017
(In thousands)	Pass		Special Mention		Substandard		Doubtful		Total
Construction and land development	$	328,127	$	10,414	$	4,584	$	—	$	343,125
Commercial real estate	1,586,932		29,273		23,787		—		1,639,992
Residential real estate	1,023,925		4,621		10,203		61		1,038,810
Commercial and financial	593,689		3,237		8,838		250		606,014
Consumer	189,354		—		82		—		189,436
Totals	$	3,722,027	$	47,545	$	47,494	$	311	$	3,817,377

Summary of Changes in Accretable Yield on PCI Loans

The table below summarizes the changes in accretable yield on PCI loans for the periods ended:

	Three Months Ended September 30,						Nine Months Ended September 30,
(In thousands)	2018			2017			2018			2017
Beginning balance	$	3,189		$	3,265		$	3,699		$	3,807
Additions	—			—			—			—
Deletions	—			—			(43		)	(10		)
Accretion	(284		)	(357		)	(989		)	(1,173		)
Reclassification from non-accretable difference	—			407			238			691
Ending balance	$	2,905		$	3,315		$	2,905		$	3,315

Schedule of Loans Modified

The following table presents loans that were modified during the nine months ended:

(In thousands)	Number of Contracts	Pre- Modification Outstanding Recorded Investment		Post- Modification Outstanding Recorded Investment		Specific Reserve Recorded		Valuation Allowance Recorded
September 30, 2018
Commercial and financial	1	$	98	$	—	$	—	$	—
Totals	1	$	98	$	—	$	—	$	—
September 30, 2017
Construction and land development	1	$	52	$	46	$	6	$	6
Residential real estate	1	15		15		—		—
Totals	2	$	67	$	61	$	6	$	6

Schedule of Impaired Financing Receivables, Excluding PCI Loans and Valuation Allowances

As of September 30, 2018 and December 31, 2017, the Company’s recorded investment in impaired loans, excluding PCI loans, the unpaid principal balance and related valuation allowance was as follows:

	September 30, 2018
(In thousands)	Recorded Investment		Unpaid Principal Balance		Related Valuation Allowance
Impaired Loans with No Related Allowance Recorded:
Construction and land development	$	202	$	479	$	—
Commercial real estate	2,896		4,161		—
Residential real estate	13,698		18,313		—
Commercial and financial	—		—		—
Consumer	54		92		—
Impaired Loans with an Allowance Recorded:
Construction and land development	210		224		23
Commercial real estate	12,898		13,025		3,591
Residential real estate	6,106		6,252		869
Commercial and financial	1,629		1,608		1,483
Consumer	392		399		172
Total Impaired Loans
Construction and land development	412		703		23
Commercial real estate	15,794		17,186		3,591
Residential real estate	19,804		24,565		869
Commercial and financial	1,629		1,608		1,483
Consumer	446		491		172
Totals	$	38,085	$	44,553	$	6,138

	December 31, 2017
(In thousands)	Recorded Investment		Unpaid Principal Balance		Related Valuation Allowance
Impaired Loans with No Related Allowance Recorded:
Construction and land development	$	223	$	510	$	—
Commercial real estate	3,475		4,873		—
Residential real estate	10,272		15,063		—
Commercial and financial	19		29		—
Consumer	105		180		—
Impaired Loans with an Allowance Recorded:
Construction and land development	251		264		23
Commercial real estate	4,780		4,780		195
Residential real estate	8,448		8,651		1,091
Commercial and financial	2,436		883		1,050
Consumer	282		286		43
Total Impaired Loans
Construction and land development	474		774		23
Commercial real estate	8,255		9,653		195
Residential real estate	18,720		23,714		1,091
Commercial and financial	2,455		912		1,050
Consumer	387		466		43
Totals	$	30,291	$	35,519	$	2,402

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Allowance for Loan Losses (Tables)

9 Months Ended

Sep. 30, 2018

Receivables [Abstract]

Schedule of Allowance for Loan Losses

Activity in the allowance for loan losses for the three month and nine month periods ended September 30, 2018 and 2017 is summarized as follows:

	Three Months Ended September 30, 2018
(In thousands)	Beginning Balance		Provision for Loan Losses			Charge- Offs			Recoveries		TDR Allowance Adjustments			Ending Balance
Construction & land development	$	2,287	$	(221	)	$	—		$	3	$	—		$	2,069
Commercial real estate	9,126		4,191			(1		)	18		(16		)	13,318
Residential real estate	8,850		(1,279		)	(6		)	99		(19		)	7,645
Commercial and financial	7,102		1,739			(842		)	163		—			8,162
Consumer	1,559		1,344			(296		)	65		(1		)	2,671
Totals	$	28,924	$	5,774		$	(1,145	)	$	348	$	(36	)	$	33,865

	Three Months Ended September 30, 2017
(In thousands)	Beginning Balance		Provision for Loan Losses			Charge- Offs			Recoveries		TDR Allowance Adjustments			Ending Balance
Construction & land development	$	1,574	$	(690	)	$	—		$	728	$	—		$	1,612
Commercial real estate	9,923		62			(239		)	175		(15		)	9,906
Residential real estate	7,423		116			(296		)	39		(148		)	7,134
Commercial and financial	5,460		834			(333		)	28		—			5,989
Consumer	1,620		358			(442		)	61		(6		)	1,591
Totals	$	26,000	$	680		$	(1,310	)	$	1,031	$	(169	)	$	26,232

	Nine Months Ended September 30, 2018
(In thousands)	Beginning Balance		Provision for Loan Losses			Charge- Offs			Recoveries		TDR Allowance Adjustments			Ending Balance
Construction & land development	$	1,642	$	414		$	—		$	13	$	—		$	2,069
Commercial real estate	9,285		3,826			(15		)	268		(46		)	13,318
Residential real estate	7,131		(78		)	(33		)	733		(108		)	7,645
Commercial and financial	7,297		3,639			(2,985		)	211		—			8,162
Consumer	1,767		1,587			(931		)	251		(3		)	2,671
Totals	$	27,122	$	9,388		$	(3,964	)	$	1,476	$	(157	)	$	33,865

	Nine Months Ended September 30, 2017
(In thousands)	Beginning Balance		Provision for Loan Losses			Charge- Offs			Recoveries		TDR Allowance Adjustments			Ending Balance
Construction & land development	$	1,219	$	(496	)	$	—		$	891	$	(2	)	$	1,612
Commercial real estate	9,273		410			(341		)	613		(49		)	9,906
Residential real estate	7,483		90			(482		)	266		(223		)	7,134
Commercial and financial	3,636		3,036			(837		)	154		—			5,989
Consumer	1,789		345			(756		)	221		(8		)	1,591
Totals	$	23,400	$	3,385		$	(2,416	)	$	2,145	$	(282	)	$	26,232

Schedule of Loan Portfolio, Excluding PCI Loans and Related Allowance

The Company’s loan portfolio, excluding PCI loans, and related allowance at September 30, 2018 and December 31, 2017 is shown in the following tables:

	September 30, 2018
	Individually Evaluated for Impairment				Collectively Evaluated for Impairment				Total
(In thousands)	Recorded Investment		Associated Allowance		Recorded Investment		Associated Allowance		Recorded Investment		Associated Allowance
Construction & land development	$	412	$	23	$	375,716	$	2,046	$	376,128	$	2,069
Commercial real estate	15,794		3,591		1,699,743		9,727		1,715,537		13,318
Residential real estate	19,804		869		1,131,519		6,776		1,151,323		7,645
Commercial and financial	1,629		1,483		608,598		6,679		610,227		8,162
Consumer	446		172		192,611		2,499		193,057		2,671
Totals	$	38,085	$	6,138	$	4,008,187	$	27,727	$	4,046,272	$	33,865

	December 31, 2017
	Individually Evaluated for Impairment				Collectively Evaluated for Impairment				Total
(In thousands)	Recorded Investment		Associated Allowance		Recorded Investment		Associated Allowance		Recorded Investment		Associated Allowance
Construction & land development	$	474	$	23	$	341,530	$	1,619	$	342,004	$	1,642
Commercial real estate	8,255		195		1,621,960		9,090		1,630,215		9,285
Residential real estate	18,720		1,091		1,014,465		6,040		1,033,185		7,131
Commercial and financial	2,455		1,050		602,666		6,247		605,121		7,297
Consumer	387		43		189,049		1,724		189,436		1,767
Totals	$	30,291	$	2,402	$	3,769,670	$	24,720	$	3,799,961	$	27,122

The table below summarizes PCI loans that were individually evaluated for impairment based on expected cash flows at September 30, 2018 and December 31, 2017:

	September 30, 2018				December 31, 2017
	PCI Loans Individually Evaluated for Impairment
(In thousands)	Recorded Investment		Associated Allowance		Recorded Investment		Associated Allowance
Construction & land development	$	129	$	—	$	1,121	$	—
Commercial real estate	10,838		—		9,776		—
Residential real estate	1,356		—		5,626		—
Commercial and financial	728		—		894		—
Consumer	—		—		—		—
Totals	$	13,051	$	—	$	17,417	$	—

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Securities Sold Under Agreements to Repurchase (Tables)

9 Months Ended

Sep. 30, 2018

Brokers and Dealers [Abstract]

Schedule of Securities Sold Under Agreements to Repurchase and Securities Pledged

Company securities sold under agreements to repurchase and securities pledged were as follows by collateral type and maturity as of: 

(In thousands)	September 30, 2018		December 31, 2017
Fair-Value of Pledged Securities - overnight and continuous
Mortgage-backed securities and collateralized mortgage
obligations of U.S. Government Sponsored Entities	$	189,035	$	216,094

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Noninterest Income and Expense (Tables)

9 Months Ended

Sep. 30, 2018

Brokers and Dealers [Abstract]

Summary of Noninterest Income and Expense

Detail of noninterest income and expenses for the three and nine months ended September 30, 2018 and 2017 are as follows:

	Three Months Ended September 30,						Nine Months Ended September 30,
(In thousands)	2018			2017			2018			2017
Noninterest income
Service charges on deposit accounts	$	2,833		$	2,626		$	8,179		$	7,483
Trust fees	1,083			967			3,143			2,764
Mortgage banking fees	1,135			2,138			3,873			4,962
Brokerage commissions and fees	444			351			1,264			1,079
Marine finance fees	194			137			1,213			597
Interchange income	3,119			2,582			9,137			7,747
BOLI income	1,078			836			3,200			2,326
Other income	2,453			1,844			7,497			4,895
	12,339			11,481			37,506			31,853
Securities losses, net	(48		)	(47		)	(198		)	(26		)
Totals	$	12,291		$	11,434		$	37,308		$	31,827
Noninterest expense
Salaries and wages	$	17,129		$	15,627		$	48,939		$	49,371
Employee benefits	3,205			2,917			9,320			8,920
Outsourced data processing costs	3,493			3,231			10,565			9,956
Telephone/data lines	624			573			1,879			1,753
Occupancy	3,214			2,447			9,647			10,025
Furniture and equipment	1,367			1,191			4,292			4,261
Marketing	1,139			1,298			3,735			3,294
Legal and professional fees	2,019			2,560			6,293			7,968
FDIC assessments	431			548			1,624			1,768
Amortization of intangibles	1,004			839			2,997			2,397
Net (gain)/loss and disposition expense on other real estate owned	(136		)	(297		)	461			(293		)
Other	3,910			3,427			13,057			11,312
Total	$	37,399		$	34,361		$	112,809		$	110,732

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Fair Value (Tables)

9 Months Ended

Sep. 30, 2018

Fair Value Disclosures [Abstract]

Schedule of Fair Value of Assets Measured on Recurring and Nonrecurring Basis

Under ASC 820, fair value measurements for items measured at fair value on a recurring and nonrecurring basis at September 30, 2018 and December 31, 2017 included:

(In thousands)	Fair Value Measurements		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
September 30, 2018
Available for sale debt securities (1)	$	923,206	$	99	$	923,107	$	—
Loans held for sale (2)	16,172		—		16,172		—
Loans (3)	7,268		—		2,255		5,013
Other real estate owned (4)	4,715		—		64		4,651
Equity securities (5)	6,145		6,145		—		—
December 31, 2017
Available for sale debt securities (1)(5)	$	949,460	$	100	$	949,360	$	—
Loans held for sale (2)	24,306		—		24,306		—
Loans (3)	4,192		—		3,454		738
Other real estate owned (4)	7,640		—		60		7,580
Equity securities (5)	6,344		6,344		—		—

(1) See Note D for further detail of fair value of individual investment categories.

(2) Recurring fair value basis determined using observable market data.

(3) See Note F. Nonrecurring fair value adjustments to loans identified as impaired reflect full or partial write-downs that are based on the loan’s observable market price or current appraised value of the collateral in accordance with ASC 310.

(4) Fair value is measured on a nonrecurring basis in accordance with ASC 360.

(5) Prior to adoption of ASU 2016-1 on January 1, 2018, an investment in shares of a mutual fund that invests primarily in CRA-qualified debt securities was classified as an available for sale security. Beginning in 2018, this security is reported at fair value in Other Assets. Fair value is determined based on market quotations.

Schedule of Aggregate Fair Value and Contractual Balance of Loans for Sale

The aggregate fair value and contractual balance of loans held for sale as of September 30, 2018 and December 31, 2017 is as follows:

(In thousands)	September 30, 2018		December 31, 2017
Aggregate fair value	$	16,172	$	24,306
Contractual balance	15,722		23,627
Excess	450		679

Schedule of Carrying Amount and Fair Value of Other Significant Financial Instruments Not Measured on a Recurring Basis

The carrying amount and fair value of the Company’s other financial instruments that are not measured at fair value on a recurring basis in the balance sheet as of September 30, 2018 and December 31, 2017 is as follows:

(In thousands)	Carrying Amount		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
September 30, 2018
Financial Assets
Debt securities held to maturity (1)	$	367,387	$	—	$	353,919	$	—
Time deposits with other banks	9,813		—		—		9,715
Loans, net	4,018,190		—		—		3,982,029
Financial Liabilities
Deposit liabilities	4,643,510		—		—		4,638,270
Federal Home Loan Bank (FHLB) borrowings	261,000		—		—		261,036
Subordinated debt	70,734		—		61,716		—
December 31, 2017
Financial Assets
Debt securities held to maturity (1)	$	416,863	$	—	$	414,470	$	—
Time deposits with other banks	12,553		—		—		12,493
Loans, net	3,786,063		—		—		3,760,754
Financial Liabilities
Deposit liabilities	4,592,720		—		—		4,588,515
Federal Home Loan Bank (FHLB) borrowings	211,000		—		—		211,000
Subordinated debt	70,521		—		61,530		—

(1) See Note D for further detail of individual investment categories.

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Business Combinations (Tables)

9 Months Ended

Sep. 30, 2018

Business Combinations [Abstract]

Summary of Purchase Price Calculation

(In thousands, except per share data)	November 3, 2017
Shares exchanged for cash	$	15,694
Number of Palm Beach Community Bank common shares outstanding	2,507
Per share exchange ratio	0.9240
Number of shares of common stock issued	2,316
Multiplied by common stock price per share on November 3, 2017	$	24.31
Value of common stock issued	56,312
Total purchase price	$	72,006

(In thousands, except per share data)	October 20, 2017
Shares exchanged for cash	$	4,701
Number of NorthStar Banking Corporation common shares outstanding	1,958
Per share exchange ratio	0.5605
Number of shares of common stock issued	1,098
Multiplied by common stock price per share on October 20, 2017	$	24.92
Value of common stock issued	27,353
Cash paid for NorthStar Banking Corporation vested stock options	801
Total purchase price	$	32,855

(In thousands, except per share data)	April 7, 2017
Shares exchanged for cash	$	8,034
Number of GulfShore Bancshares, Inc. common shares outstanding	5,464
Per share exchange ratio	0.4807
Number of shares of common stock issued	2,627
Multiplied by common stock price per share on April 7, 2017	$	23.94
Value of common stock issued	62,883
Total purchase price	$	70,917

Schedule of Business Acquisitions

(In thousands)	Initially Reported November 3, 2017		Measurement Period Adjustments			As Adjusted November 3, 2017
Assets:
Cash	$	9,301	$	—		$	9,301
Investment securities	22,098		—			22,098
Loans, net	272,090		(1,772		)	270,318
Fixed assets	7,641		—			7,641
Core deposit intangibles	2,523		—			2,523
Goodwill	33,428		1,323			34,751
Other assets	9,909		449			10,358
Totals	$	356,990	$	—		$	356,990
Liabilities:
Deposits	$	268,633	$	—		$	268,633
Other liabilities	16,351		—			16,351
Totals	$	284,984	$	—		$	284,984

Determining fair values of assets and liabilities, especially the loan portfolio, core deposit intangibles, and deferred taxes, is a complicated process involving significant judgment regarding methods and assumptions used to calculate estimated fair values.

(In thousands)	Initially Reported April 7, 2017		Measurement Period Adjustments		As Adjusted April 7, 2017
Assets:
Cash	$	55,540	$	—	$	55,540
Investment securities	316		—		316
Loans, net	250,876		—		250,876
Fixed assets	1,307		—		1,307
Other real estate owned	13		—		13
Core deposit intangibles	3,927		—		3,927
Goodwill	37,098		—		37,098
Other assets	8,572		—		8,572
Totals	$	357,649	—		$	357,649
Liabilities:
Deposits	$	285,350	$	—	$	285,350
Other liabilities	1,382		—		1,382
Totals	$	286,732	—		$	286,732

Determining fair values of assets and liabilities, especially the loan portfolio, core deposit intangibles, and deferred taxes, is a complicated process involving significant judgment regarding methods and assumptions used to calculate estimated fair values.

(In thousands)	Initially Reported October 20, 2017		Measurement Period Adjustments			As Adjusted October 20, 2017
Assets:
Cash	$	5,485	$	—		$	5,485
Investment securities	56,123		—			56,123
Loans, net	136,832		—			136,832
Fixed assets	2,637		—			2,637
Core deposit intangibles	1,275		—			1,275
Goodwill	12,404		(99		)	12,305
Other assets	1,522		99			1,621
Totals	$	216,278	$	—		$	216,278
Liabilities:
Deposits	$	182,443	$	—		$	182,443
Other liabilities	980		—			980
Totals	$	183,423	$	—		$	183,423

(In thousands, except per share data)	October 19, 2018
Number of First Green common shares outstanding	5,462
Per share exchange ratio	0.7324
Number of shares of Seacoast common stock issued	4,000
Multiplied by common stock price per share on October 19, 2018	$	26.87
Value of common stock issued	107,486
Cash paid for First Green stock options	6,558
Total purchase price	$	114,044

Schedule of Fair Value of Acquired Loans and Unpaid Principal Balance

The table below presents information with respect to the fair value of acquired loans, as well as their unpaid principal balance (“Book Balance”) at acquisition date.

	As Adjusted November 3, 2017
(In thousands)	Book Balance		Fair Value
Loans:
Single family residential real estate	$	30,153	$	30,990
Commercial real estate	134,705		132,089
Construction/development/land	69,686		67,425
Commercial loans	36,076		35,876
Consumer and other loans	179		172
Purchased Credit Impaired	4,768		3,766
Total acquired loans	$	275,567	$	270,318

The table below presents information with respect to the fair value of acquired loans, as well as their unpaid principal balance (“Book Balance”) at acquisition date.

	April 7, 2017
(In thousands)	Book Balance		Fair Value
Loans:
Single family residential real estate	$	101,281	$	99,598
Commercial real estate	106,729		103,905
Construction/development/land	13,175		11,653
Commercial loans	32,137		32,247
Consumer and other loans	3,554		3,473
Purchased credit-impaired	—		—
Total acquired loans	$	256,876	$	250,876

 The table below presents information with respect to the fair value of acquired loans, as well as their unpaid principal balance (“Book Balance”) at acquisition date.

	October 20, 2017
(In thousands)	Book Balance		Fair Value
Loans:
Single family residential real estate	$	15,111	$	15,096
Commercial real estate	73,139		69,554
Construction/development/land	11,706		10,390
Commercial loans	31,200		30,854
Consumer and other loans	6,761		6,645
Purchased Credit Impaired	5,527		4,293
Total acquired loans	$	143,444	$	136,832

Schedule of Contractually Required Principal and Interest Payments Adjusted for Estimated Prepayments

Contractually required principal and interest payments have been adjusted for estimated prepayments.

(In thousands)	October 20, 2017
Contractually required principal and interest	$	5,596
Non-accretable difference	(689		)
Cash flows expected to be collected	4,907
Accretable yield	(614		)
Total purchased credit-impaired loan acquired	$	4,293

The table below summarizes the total contractually required principal and interest cash payments, management’s estimate of expected total cash payments and fair value of the loans as of November 3, 2017 for purchased credit impaired loans. Contractually required principal and interest payments have been adjusted for estimated prepayments.

(In thousands)	November 3, 2017
Contractually required principal and interest	$	4,768
Non-accretable difference	(1,002		)
Cash flows expected to be collected	3,766
Accretable yield	—
Total purchased credit-impaired loan acquired	$	3,766

Summary of Pro-Forma Data including Acquisition of Gulfshore, NSBC and PBCB

Pro-forma data for the three and nine months ended September 30, 2017 as if the acquisitions of GulfShore, NSBC and PBCB occurred at the beginning of 2017 is as follows:

	Three Months Ended September 30,		Nine Months Ended September 30,
(In thousands, except per share amounts)	2017		2017
Net interest income	$	51,115	$	146,668
Net income	16,321		37,149
EPS - basic	0.35		0.81
EPS - diluted	0.35		0.80

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Basis of Presentation - Narrative (Details) $ in Millions	Jan. 01, 2018 USD ($)
Accounting Policies [Abstract]
Reclassification of accumulated unrealized loss	$ 0.1

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Earnings per Share - Narrative (Details) - USD ($)	1 Months Ended	3 Months Ended		9 Months Ended
	Feb. 21, 2017	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Earnings Per Share [Abstract]
Antidilutive securities excluded from diluted earnings per share calculation (in shares)		481,000	274,000	412,000	191,000
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares of common stock issued (in shares)	2,702,500
Net proceeds from issuance of common stock	$ 55,700,000			$ 0	$ 55,641,000
CapGen Capital Group III LP
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares of common stock issued (in shares)	6,210,000
Net proceeds from issuance of common stock	$ 0

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Earnings per Share - Schedule of Earnings Per Share, Basic and Diluted (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Basic earnings per share
Net income	$ 16,322	$ 14,216	$ 51,313	$ 29,818
Average common stock outstanding (in shares)	47,205,383	43,151,248	47,108,302	41,626,356
Net income per share (in dollars per share)	$ 0.35	$ 0.33	$ 1.09	$ 0.72
Diluted earnings per share
Net income	$ 16,322	$ 14,216	$ 51,313	$ 29,818
Average common stock outstanding (in shares)	47,205,383	43,151,248	47,108,302	41,626,356
Add: Dilutive effect of employee restricted stock and stock options (in shares)	823,947	640,860	794,791	671,780
Average shares outstanding - diluted (in shares)	48,029,330	43,792,108	47,903,093	42,298,136
Net income per share (in dollars per share)	$ 0.34	$ 0.32	$ 1.07	$ 0.70

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Securities - Amortized Cost and Fair Value of Securities Available for Sale and Held for Investment (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Debt securities available for sale
Available for sale, amortized cost, total	$ 948,030	$ 953,720
Available for sale, gross unrealized gains	1,590	4,202
Available for sale, gross unrealized losses	(26,414)	(8,462)
Available for sale, fair value	923,206	949,460
Debt securities held to maturity
Held to maturity, amortized cost, total	367,387	416,863
Held to maturity, gross unrealized gains	239	1,819
Held to maturity, gross unrealized losses	(13,707)	(4,212)
Held to maturity, fair value	353,919	414,470
U.S. Treasury securities and obligations of U.S. Government Entities
Debt securities available for sale
Available for sale, amortized cost, total	7,486	9,475
Available for sale, gross unrealized gains	114	274
Available for sale, gross unrealized losses	(57)	(5)
Available for sale, fair value	7,543	9,744
Mortgage-backed securities and collateralized mortgage obligations of U.S. Government Sponsored Entities
Debt securities available for sale
Available for sale, amortized cost, total	597,689	560,396
Available for sale, gross unrealized gains	153	1,163
Available for sale, gross unrealized losses	(24,660)	(8,034)
Available for sale, fair value	573,182	553,525
Debt securities held to maturity
Held to maturity, amortized cost, total	313,667	353,541
Held to maturity, gross unrealized gains	0	802
Held to maturity, gross unrealized losses	(13,557)	(4,159)
Held to maturity, fair value	300,110	350,184
Private mortgage-backed securities and collateralized mortgage obligations
Debt securities available for sale
Available for sale, amortized cost, total	75,485	75,152
Available for sale, gross unrealized gains	925	1,154
Available for sale, gross unrealized losses	(318)	(285)
Available for sale, fair value	76,092	76,021
Debt securities held to maturity
Held to maturity, amortized cost, total	21,720	22,799
Held to maturity, gross unrealized gains	181	714
Held to maturity, gross unrealized losses	(131)	(53)
Held to maturity, fair value	21,770	23,460
Collateralized loan obligations
Debt securities available for sale
Available for sale, amortized cost, total	223,419	263,579
Available for sale, gross unrealized gains	137	798
Available for sale, gross unrealized losses	(566)	(68)
Available for sale, fair value	222,990	264,309
Debt securities held to maturity
Held to maturity, amortized cost, total	32,000	40,523
Held to maturity, gross unrealized gains	58	303
Held to maturity, gross unrealized losses	(19)	0
Held to maturity, fair value	32,039	40,826
Obligations of state and political subdivisions
Debt securities available for sale
Available for sale, amortized cost, total	43,951	45,118
Available for sale, gross unrealized gains	261	813
Available for sale, gross unrealized losses	(813)	(70)
Available for sale, fair value	$ 43,399	$ 45,861

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Securities - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Schedule of Available-for-sale Securities [Line Items]
Proceeds from sale of debt securities available for sale		$ 3,700	$ 0	$ 7,525
Gross gains from sale of securities		15		36
Gross losses from sale of securities		$ 62		$ 62
Gain (loss) in investment in shares of mutual funds	$ (100)		(200)
Unrealized losses from securities transferred from available for sale to held to maturity			3,100
Unamortized balance of securities transferred from available for sale to held to maturity	800		800
Fair value for securities in unrealized loss position for less than twelve months	843,091		843,091		$ 326,177
Unrealized losses on securities in unrealized loss position for less than twelve months	17,268		17,268		2,134
Fair value for securities in unrealized loss position for twelve months or more	434,034		434,034		440,333
Unrealized losses on securities in unrealized loss position for more than twelve months	22,853		22,853		10,540
Unrealized losses on mortgage backed securities of government sponsored entities	(40,121)		(40,121)		(12,674)
Fair value of mortgage backed securities of government sponsored entities	1,277,125		1,277,125		766,510
Other assets	37,500		37,500		$ 32,500
Investment in mutual fund carried at fair value	$ 6,100		$ 6,100
Shares held (in shares)	47,269,692		47,269,692		46,917,735
Ownership basis	0.00%		0.00%
Mortgage-backed securities and collateralized mortgage obligations of U.S. Government Sponsored Entities
Schedule of Available-for-sale Securities [Line Items]
Fair value for securities in unrealized loss position for less than twelve months	$ 456,356		$ 456,356		$ 304,723
Unrealized losses on securities in unrealized loss position for less than twelve months	15,703		15,703		2,047
Fair value for securities in unrealized loss position for twelve months or more	416,936		416,936		413,725
Unrealized losses on securities in unrealized loss position for more than twelve months	22,514		22,514		10,146
Unrealized losses on mortgage backed securities of government sponsored entities	(38,217)		(38,217)		(12,193)
Fair value of mortgage backed securities of government sponsored entities	873,292		873,292		718,448
Private collateralized mortgage obligations
Schedule of Available-for-sale Securities [Line Items]
Fair value for securities in unrealized loss position for less than twelve months	84,026		84,026		0
Unrealized losses on securities in unrealized loss position for less than twelve months	251		251		0
Fair value for securities in unrealized loss position for twelve months or more	13,836		13,836		20,744
Unrealized losses on securities in unrealized loss position for more than twelve months	197		197		338
Unrealized losses on mortgage backed securities of government sponsored entities	(448)		(448)		(338)
Fair value of mortgage backed securities of government sponsored entities	97,862		97,862		20,744
Collateralized loan obligations
Schedule of Available-for-sale Securities [Line Items]
Unrealized losses on mortgage backed securities of government sponsored entities	(600)		(600)
Fair value of mortgage backed securities of government sponsored entities	255,000		255,000
Obligations of state and political subdivisions
Schedule of Available-for-sale Securities [Line Items]
Fair value for securities in unrealized loss position for less than twelve months	40,136		40,136		5,414
Unrealized losses on securities in unrealized loss position for less than twelve months	672		672		14
Fair value for securities in unrealized loss position for twelve months or more	3,262		3,262		5,864
Unrealized losses on securities in unrealized loss position for more than twelve months	142		142		56
Unrealized losses on mortgage backed securities of government sponsored entities	(814)		(814)		(70)
Fair value of mortgage backed securities of government sponsored entities	43,398		43,398		11,278
Available-for-sale Securities
Schedule of Available-for-sale Securities [Line Items]
Fair value for securities in unrealized loss position for less than twelve months	53,600		53,600		22,900
Unrealized losses on securities in unrealized loss position for less than twelve months	1,500		1,500		200
Fair value for securities in unrealized loss position for twelve months or more	14,700		14,700		15,300
Unrealized losses on securities in unrealized loss position for more than twelve months	900		900		400
Carrying Value | Public and Trust Deposits
Schedule of Available-for-sale Securities [Line Items]
Fair value of debt securities pledged as collateral	162,400		162,400
Carrying Value | Repurchase Agreement
Schedule of Available-for-sale Securities [Line Items]
Fair value of debt securities pledged as collateral	$ 189,000		$ 189,000
Visa | Common Class B
Schedule of Available-for-sale Securities [Line Items]
Shares held (in shares)	11,330		11,330
Visa | Common Class A
Schedule of Available-for-sale Securities [Line Items]
Conversion rate of Class A stock for each share of Class B stock (shares)	$ 1.6298		$ 1.6298
Shares issued (in shares)			18,465
Maximum | Seasoned Residential Collateral Of Us Government Sponsored Entities
Schedule of Available-for-sale Securities [Line Items]
Mortgage term			30 years
Minimum | Seasoned Residential Collateral Of Us Government Sponsored Entities
Schedule of Available-for-sale Securities [Line Items]
Mortgage term			15 years
Collateralized loan obligations
Schedule of Available-for-sale Securities [Line Items]
Fair value for securities in unrealized loss position for less than twelve months	$ 255,030		$ 255,030		14,933
Unrealized losses on securities in unrealized loss position for less than twelve months	585		585		68
Fair value for securities in unrealized loss position for twelve months or more	0		0		0
Unrealized losses on securities in unrealized loss position for more than twelve months	0		0		0
Unrealized losses on mortgage backed securities of government sponsored entities	(585)		(585)		(68)
Fair value of mortgage backed securities of government sponsored entities	$ 255,030		$ 255,030		$ 14,933

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Securities - Amortized Cost and Fair Value of Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Held-to-maturity Securities, Debt Maturities, Net Carrying Amount [Abstract]
Held to maturity, amortized cost, total	$ 367,387	$ 416,863
Held-to-maturity Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Held to maturity, fair value, total	353,919	414,470
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]
Available for sale, amortized cost, total	948,030	953,720
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Available for sale, fair value, total	923,206	949,460
Mortgage-backed securities and collateralized mortgage obligations of U.S. Government Sponsored Entities
Held-to-maturity Securities, Debt Maturities, Net Carrying Amount [Abstract]
Held to maturity, amortized cost, total	313,667
Held-to-maturity Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Held to maturity, fair value, total	300,110	350,184
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]
Available for sale, amortized cost, total	597,689	560,396
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Available for sale, fair value, total	573,182	553,525
Private mortgage backed securities
Held-to-maturity Securities, Debt Maturities, Net Carrying Amount [Abstract]
Held to maturity, amortized cost, total	21,720
Held-to-maturity Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Held to maturity, fair value, total	21,770	23,460
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]
Available for sale, amortized cost, total	75,485	75,152
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Available for sale, fair value, total	76,092	$ 76,021
Collateralized loan obligations
Held-to-maturity Securities, Debt Maturities, Net Carrying Amount [Abstract]
Held to maturity, amortized cost, due in less than one year	0
Held to maturity, amortized cost, due after one year through five years	0
Held to maturity, amortized cost, due after five years through ten years	32,000
Held to maturity, amortized cost, due after ten years	0
Held to maturity, amortized cost, total	32,000
Held-to-maturity Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Held to maturity, fair value, due in less than one year	0
Held to maturity, fair value, due after one year through five years	0
Held to maturity, fair value, due after five years through ten years	32,039
Held to maturity, fair value, due after ten years	0
Held to maturity, fair value, total	32,039
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]
Available for sale, amortized cost, due in less than one year	13,832
Available for sale, amortized cost, due after one year through five years	79,637
Available for sale, amortized cost, due after five years through ten years	177,911
Available for sale, amortized cost, due after ten years	3,476
Available for sale, amortized cost, total	274,856
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Available for sale, fair value, due in less than one year	13,781
Available for sale, fair value, due after one year through five years	79,582
Available for sale, fair value, due after five years through ten years	177,196
Available for sale, fair value, due after ten years	3,373
Available for sale, fair value, total	$ 273,932

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Securities - Schedule of Unrealized Loss and Fair Value on Investments (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Fair Value
Less than 12 months	$ 843,091	$ 326,177
12 months or longer	434,034	440,333
Total	1,277,125	766,510
Unrealized Losses
Less than 12 months	(17,268)	(2,134)
12 months or longer	(22,853)	(10,540)
Total	(40,121)	(12,674)
Collateralized loan obligations
Fair Value
Less than 12 months	255,030	14,933
12 months or longer	0	0
Total	255,030	14,933
Unrealized Losses
Less than 12 months	(585)	(68)
12 months or longer	0	0
Total	(585)	(68)
Mortgage-backed securities and collateralized mortgage obligations of U.S. Government Sponsored Entities
Fair Value
Less than 12 months	456,356	304,723
12 months or longer	416,936	413,725
Total	873,292	718,448
Unrealized Losses
Less than 12 months	(15,703)	(2,047)
12 months or longer	(22,514)	(10,146)
Total	(38,217)	(12,193)
Private collateralized mortgage obligations
Fair Value
Less than 12 months	84,026	0
12 months or longer	13,836	20,744
Total	97,862	20,744
Unrealized Losses
Less than 12 months	(251)	0
12 months or longer	(197)	(338)
Total	(448)	(338)
Obligations of state and political subdivisions
Fair Value
Less than 12 months	40,136	5,414
12 months or longer	3,262	5,864
Total	43,398	11,278
Unrealized Losses
Less than 12 months	(672)	(14)
12 months or longer	(142)	(56)
Total	(814)	(70)
U.S. Treasury securities and obligations of U.S. Government Entities
Fair Value
Less than 12 months	7,543	1,107
12 months or longer	0	0
Total	7,543	1,107
Unrealized Losses
Less than 12 months	(57)	(5)
12 months or longer	0	0
Total	$ (57)	$ (5)

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Loans - Schedule of Portfolio Loans, Purchased Credit Impaired Loans and Purchased Unimpaired Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases receivable	$ 4,059,323	$ 3,817,377
PCI Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Deferred costs	15,900	12,900
Real Estate | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases receivable	376,257	343,125
Real Estate | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases receivable	1,726,699	1,639,992
Real Estate | Residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases receivable	1,152,640	1,038,810
Commercial and financial | Commercial and financial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases receivable	610,955	606,014
Consumer | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases receivable	192,772	189,436
Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases receivable	3,383,571	2,922,609
Portfolio Loans | Real Estate | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases receivable	289,449	215,315
Portfolio Loans | Real Estate | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases receivable	1,357,721	1,170,618
Portfolio Loans | Real Estate | Residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases receivable	994,575	845,420
Portfolio Loans | Commercial and financial | Commercial and financial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases receivable	554,627	512,430
Portfolio Loans | Consumer | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases receivable	187,199	178,826
PCI Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases receivable	13,051	17,417
PCI Loans | Real Estate | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases receivable	129	1,121
PCI Loans | Real Estate | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases receivable	10,838	9,776
PCI Loans | Real Estate | Residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases receivable	1,356	5,626
PCI Loans | Commercial and financial | Commercial and financial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases receivable	728	894
PCI Loans | Consumer | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases receivable	0	0
PULs
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases receivable	662,701	877,351
PULs | Real Estate | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases receivable	86,679	126,689
PULs | Real Estate | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases receivable	358,140	459,598
PULs | Real Estate | Residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases receivable	156,709	187,764
PULs | Commercial and financial | Commercial and financial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases receivable	55,600	92,690
PULs | Consumer | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases receivable	$ 5,573	$ 10,610

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Loans - Past Due Financing Receivables (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	$ 4,014,200	$ 3,788,998
Nonaccrual	26,140	19,524
Total Financing Receivables	4,059,323	3,817,377
Accruing 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	14,446	8,082
Accruing 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	3,482	773
Accruing Greater Than 90 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	1,055	0
Real Estate | Construction and land development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Financing Receivables	376,257	343,125
Real Estate | Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Financing Receivables	1,726,699	1,639,992
Real Estate | Residential real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Financing Receivables	1,152,640	1,038,810
Commercial and financial | Commercial and financial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Financing Receivables	610,955	606,014
Consumer | Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Financing Receivables	192,772	189,436
Portfolio Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	3,354,045	2,903,109
Nonaccrual	18,998	12,569
Total Financing Receivables	3,383,571	2,922,609
Portfolio Loans | Accruing 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	7,544	6,245
Portfolio Loans | Accruing 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	2,625	686
Portfolio Loans | Accruing Greater Than 90 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	359	0
Portfolio Loans | Real Estate | Construction and land development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	289,234	215,077
Nonaccrual	215	238
Total Financing Receivables	289,449	215,315
Portfolio Loans | Real Estate | Construction and land development | Accruing 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Portfolio Loans | Real Estate | Construction and land development | Accruing 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Portfolio Loans | Real Estate | Construction and land development | Accruing Greater Than 90 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Portfolio Loans | Real Estate | Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	1,345,174	1,165,738
Nonaccrual	9,374	1,690
Total Financing Receivables	1,357,721	1,170,618
Portfolio Loans | Real Estate | Commercial real estate | Accruing 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	3,173	2,605
Portfolio Loans | Real Estate | Commercial real estate | Accruing 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	585
Portfolio Loans | Real Estate | Commercial real estate | Accruing Greater Than 90 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Portfolio Loans | Real Estate | Residential real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	984,874	836,117
Nonaccrual	8,395	8,416
Total Financing Receivables	994,575	845,420
Portfolio Loans | Real Estate | Residential real estate | Accruing 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	1,202	812
Portfolio Loans | Real Estate | Residential real estate | Accruing 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	104	75
Portfolio Loans | Real Estate | Residential real estate | Accruing Greater Than 90 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Portfolio Loans | Commercial and financial | Commercial and financial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	548,861	507,501
Nonaccrual	836	2,127
Total Financing Receivables	554,627	512,430
Portfolio Loans | Commercial and financial | Commercial and financial | Accruing 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	2,050	2,776
Portfolio Loans | Commercial and financial | Commercial and financial | Accruing 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	2,521	26
Portfolio Loans | Commercial and financial | Commercial and financial | Accruing Greater Than 90 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	359	0
Portfolio Loans | Consumer | Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	185,902	178,676
Nonaccrual	178	98
Total Financing Receivables	187,199	178,826
Portfolio Loans | Consumer | Consumer | Accruing 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	1,119	52
Portfolio Loans | Consumer | Consumer | Accruing 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Portfolio Loans | Consumer | Consumer | Accruing Greater Than 90 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
PULs
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	649,340	874,028
Nonaccrual	4,906	2,041
Total Financing Receivables	662,701	877,351
PULs | Accruing 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	6,902	1,195
PULs | Accruing 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	857	87
PULs | Accruing Greater Than 90 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	696	0
PULs | Real Estate | Construction and land development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	86,679	126,655
Nonaccrual	0	0
Total Financing Receivables	86,679	126,689
PULs | Real Estate | Construction and land development | Accruing 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	34
PULs | Real Estate | Construction and land development | Accruing 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
PULs | Real Estate | Construction and land development | Accruing Greater Than 90 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
PULs | Real Estate | Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	355,541	457,899
Nonaccrual	722	720
Total Financing Receivables	358,140	459,598
PULs | Real Estate | Commercial real estate | Accruing 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	1,181	979
PULs | Real Estate | Commercial real estate | Accruing 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
PULs | Real Estate | Commercial real estate | Accruing Greater Than 90 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	696	0
PULs | Real Estate | Residential real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	151,125	186,549
Nonaccrual	3,755	1,000
Total Financing Receivables	156,709	187,764
PULs | Real Estate | Residential real estate | Accruing 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	1,705	128
PULs | Real Estate | Residential real estate | Accruing 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	124	87
PULs | Real Estate | Residential real estate | Accruing Greater Than 90 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
PULs | Commercial and financial | Commercial and financial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	50,427	92,315
Nonaccrual	429	321
Total Financing Receivables	55,600	92,690
PULs | Commercial and financial | Commercial and financial | Accruing 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	4,011	54
PULs | Commercial and financial | Commercial and financial | Accruing 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	733	0
PULs | Commercial and financial | Commercial and financial | Accruing Greater Than 90 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
PULs | Consumer | Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	5,568	10,610
Nonaccrual	0	0
Total Financing Receivables	5,573	10,610
PULs | Consumer | Consumer | Accruing 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	5	0
PULs | Consumer | Consumer | Accruing 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
PULs | Consumer | Consumer | Accruing Greater Than 90 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Purchased Credit Impaired Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	10,815	11,861
Nonaccrual	2,236	4,914
Total Financing Receivables	13,051	17,417
Purchased Credit Impaired Loans | Accruing 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	642
Purchased Credit Impaired Loans | Accruing 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Purchased Credit Impaired Loans | Accruing Greater Than 90 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Purchased Credit Impaired Loans | Real Estate | Construction and land development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	129	1,121
Nonaccrual	0	0
Total Financing Receivables	129	1,121
Purchased Credit Impaired Loans | Real Estate | Construction and land development | Accruing 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Purchased Credit Impaired Loans | Real Estate | Construction and land development | Accruing 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Purchased Credit Impaired Loans | Real Estate | Construction and land development | Accruing Greater Than 90 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Purchased Credit Impaired Loans | Real Estate | Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	9,427	9,352
Nonaccrual	1,411	424
Total Financing Receivables	10,838	9,776
Purchased Credit Impaired Loans | Real Estate | Commercial real estate | Accruing 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Purchased Credit Impaired Loans | Real Estate | Commercial real estate | Accruing 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Purchased Credit Impaired Loans | Real Estate | Commercial real estate | Accruing Greater Than 90 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Purchased Credit Impaired Loans | Real Estate | Residential real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	552	544
Nonaccrual	804	4,440
Total Financing Receivables	1,356	5,626
Purchased Credit Impaired Loans | Real Estate | Residential real estate | Accruing 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	642
Purchased Credit Impaired Loans | Real Estate | Residential real estate | Accruing 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Purchased Credit Impaired Loans | Real Estate | Residential real estate | Accruing Greater Than 90 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Purchased Credit Impaired Loans | Commercial and financial | Commercial and financial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	707	844
Nonaccrual	21	50
Total Financing Receivables	728	894
Purchased Credit Impaired Loans | Commercial and financial | Commercial and financial | Accruing 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Purchased Credit Impaired Loans | Commercial and financial | Commercial and financial | Accruing 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Purchased Credit Impaired Loans | Commercial and financial | Commercial and financial | Accruing Greater Than 90 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Purchased Credit Impaired Loans | Consumer | Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	0	0
Nonaccrual	0	0
Total Financing Receivables	0	0
Purchased Credit Impaired Loans | Consumer | Consumer | Accruing 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Purchased Credit Impaired Loans | Consumer | Consumer | Accruing 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Purchased Credit Impaired Loans | Consumer | Consumer | Accruing Greater Than 90 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	$ 0	$ 0

XML

Loans - Risk Categories of Loans by Class of Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Financing Receivable, Recorded Investment [Line Items]
Loans	$ 4,059,323	$ 3,817,377
Pass
Financing Receivable, Recorded Investment [Line Items]
Loans	3,956,794	3,722,027
Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans	38,144	47,545
Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans	64,328	47,494
Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans	57	311
Real Estate | Construction and land development
Financing Receivable, Recorded Investment [Line Items]
Loans	376,257	343,125
Real Estate | Construction and land development | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans	364,903	328,127
Real Estate | Construction and land development | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans	6,036	10,414
Real Estate | Construction and land development | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans	5,318	4,584
Real Estate | Construction and land development | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Real Estate | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans	1,726,699	1,639,992
Real Estate | Commercial real estate | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans	1,673,457	1,586,932
Real Estate | Commercial real estate | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans	24,328	29,273
Real Estate | Commercial real estate | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans	28,914	23,787
Real Estate | Commercial real estate | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Real Estate | Residential real estate
Financing Receivable, Recorded Investment [Line Items]
Loans	1,152,640	1,038,810
Real Estate | Residential real estate | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans	1,126,238	1,023,925
Real Estate | Residential real estate | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans	2,985	4,621
Real Estate | Residential real estate | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans	23,417	10,203
Real Estate | Residential real estate | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans	0	61
Commercial and financial | Commercial and financial
Financing Receivable, Recorded Investment [Line Items]
Loans	610,955	606,014
Commercial and financial | Commercial and financial | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans	602,973	593,689
Commercial and financial | Commercial and financial | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans	1,895	3,237
Commercial and financial | Commercial and financial | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans	6,030	8,838
Commercial and financial | Commercial and financial | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans	57	250
Consumer | Consumer
Financing Receivable, Recorded Investment [Line Items]
Loans	192,772	189,436
Consumer | Consumer | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans	189,223	189,354
Consumer | Consumer | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans	2,900	0
Consumer | Consumer | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans	649	82
Consumer | Consumer | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans	$ 0	$ 0

XML

Loans - Changes in Accretable Yield on PCI Loans (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Beginning balance	$ 3,189	$ 3,265	$ 3,699	$ 3,807
Additions	0	0	0	0
Deletions	0	0	(43)	(10)
Accretion	(284)	(357)	(989)	(1,173)
Reclassification from non-accretable difference	0	407	238	691
Ending balance	$ 2,905	$ 3,315	$ 2,905	$ 3,315

XML

Loans - Modified Loans (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2018 USD ($) contract	Sep. 30, 2017 USD ($) contract
Finite-Lived Intangible Assets [Line Items]
Number of Contracts | contract	1	2
Pre- Modification Outstanding Recorded Investment	$ 98	$ 67
Post- Modification Outstanding Recorded Investment	0	61
Specific Reserve Recorded	0	6
Valuation Allowance Recorded	$ 0	$ 6
Commercial and financial
Finite-Lived Intangible Assets [Line Items]
Number of Contracts | contract	1
Pre- Modification Outstanding Recorded Investment	$ 98
Post- Modification Outstanding Recorded Investment	0
Specific Reserve Recorded	0
Valuation Allowance Recorded	$ 0
Construction and land development
Finite-Lived Intangible Assets [Line Items]
Number of Contracts | contract		1
Pre- Modification Outstanding Recorded Investment		$ 52
Post- Modification Outstanding Recorded Investment		46
Specific Reserve Recorded		6
Valuation Allowance Recorded		$ 6
Residential real estate
Finite-Lived Intangible Assets [Line Items]
Number of Contracts | contract		1
Pre- Modification Outstanding Recorded Investment		$ 15
Post- Modification Outstanding Recorded Investment		15
Specific Reserve Recorded		0
Valuation Allowance Recorded		$ 0

XML

Loans - Narrative (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2018 USD ($) payment	Sep. 30, 2017 USD ($) payment	Sep. 30, 2018 USD ($) payment	Sep. 30, 2017 USD ($) payment	Dec. 31, 2017 USD ($)
Receivables [Abstract]
Payments for loans in default, number of payments | payment	0	0	1	1
Payments for loans in default	$ 0	$ 0	$ 100,000
Troubled debt restructuring outstanding amount	13,800,000		13,800,000		$ 15,600,000
Average impaired loans	38,100,000	30,300,000	34,500,000	$ 31,200,000
Interest income recorded on impaired loans	500,000	400,000	1,400,000	1,100,000
Interest income related to impaired loans with impairment measured on present value of expected future cash flows	$ 36,000	$ 169,000	$ 157,000	$ 282,000

XML

Loans - Impaired Financing Receivables, Excluding PCI Loans and Valuation Allowances (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Recorded Investment
Total	$ 38,085	$ 30,291
Unpaid Principal Balance
Total	44,553	35,519
Related Valuation Allowance	6,138	2,402
Real Estate | Construction and land development
Recorded Investment
Impaired Loans with No Related Allowance Recorded	202	223
Impaired Loans with an Allowance Recorded	210	251
Total	412	474
Unpaid Principal Balance
Impaired Loans with No Related Allowance Recorded	479	510
Impaired Loans with an Allowance Recorded	224	264
Total	703	774
Related Valuation Allowance	23	23
Real Estate | Commercial real estate
Recorded Investment
Impaired Loans with No Related Allowance Recorded	2,896	3,475
Impaired Loans with an Allowance Recorded	12,898	4,780
Total	15,794	8,255
Unpaid Principal Balance
Impaired Loans with No Related Allowance Recorded	4,161	4,873
Impaired Loans with an Allowance Recorded	13,025	4,780
Total	17,186	9,653
Related Valuation Allowance	3,591	195
Real Estate | Residential real estate
Recorded Investment
Impaired Loans with No Related Allowance Recorded	13,698	10,272
Impaired Loans with an Allowance Recorded	6,106	8,448
Total	19,804	18,720
Unpaid Principal Balance
Impaired Loans with No Related Allowance Recorded	18,313	15,063
Impaired Loans with an Allowance Recorded	6,252	8,651
Total	24,565	23,714
Related Valuation Allowance	869	1,091
Commercial and financial | Commercial and financial
Recorded Investment
Impaired Loans with No Related Allowance Recorded	0	19
Impaired Loans with an Allowance Recorded	1,629	2,436
Total	1,629	2,455
Unpaid Principal Balance
Impaired Loans with No Related Allowance Recorded	0	29
Impaired Loans with an Allowance Recorded	1,608	883
Total	1,608	912
Related Valuation Allowance	1,483	1,050
Consumer | Consumer
Recorded Investment
Impaired Loans with No Related Allowance Recorded	54	105
Impaired Loans with an Allowance Recorded	392	282
Total	446	387
Unpaid Principal Balance
Impaired Loans with No Related Allowance Recorded	92	180
Impaired Loans with an Allowance Recorded	399	286
Total	491	466
Related Valuation Allowance	$ 172	$ 43

XML

Allowance for Loan Losses - Activity in Allowance for Loan Losses (Details) - 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]
Beginning Balance	$ 28,924	$ 26,000	$ 27,122	$ 23,400
Provision for Loan Losses	5,774	680	9,388	3,385
Charge- Offs	(1,145)	(1,310)	(3,964)	(2,416)
Recoveries	348	1,031	1,476	2,145
TDR Allowance Adjustments	(36)	(169)	(157)	(282)
Ending Balance	33,865	26,232	33,865	26,232
Real Estate | Construction and land development
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	2,287	1,574	1,642	1,219
Provision for Loan Losses	(221)	(690)	414	(496)
Charge- Offs	0	0	0	0
Recoveries	3	728	13	891
TDR Allowance Adjustments	0	0	0	(2)
Ending Balance	2,069	1,612	2,069	1,612
Real Estate | Commercial real estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	9,126	9,923	9,285	9,273
Provision for Loan Losses	4,191	62	3,826	410
Charge- Offs	(1)	(239)	(15)	(341)
Recoveries	18	175	268	613
TDR Allowance Adjustments	(16)	(15)	(46)	(49)
Ending Balance	13,318	9,906	13,318	9,906
Real Estate | Residential real estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	8,850	7,423	7,131	7,483
Provision for Loan Losses	(1,279)	116	(78)	90
Charge- Offs	(6)	(296)	(33)	(482)
Recoveries	99	39	733	266
TDR Allowance Adjustments	(19)	(148)	(108)	(223)
Ending Balance	7,645	7,134	7,645	7,134
Commercial and financial | Commercial and financial
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	7,102	5,460	7,297	3,636
Provision for Loan Losses	1,739	834	3,639	3,036
Charge- Offs	(842)	(333)	(2,985)	(837)
Recoveries	163	28	211	154
TDR Allowance Adjustments	0	0	0	0
Ending Balance	8,162	5,989	8,162	5,989
Consumer | Consumer
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	1,559	1,620	1,767	1,789
Provision for Loan Losses	1,344	358	1,587	345
Charge- Offs	(296)	(442)	(931)	(756)
Recoveries	65	61	251	221
TDR Allowance Adjustments	(1)	(6)	(3)	(8)
Ending Balance	$ 2,671	$ 1,591	$ 2,671	$ 1,591

XML

Allowance for Loan Losses - Schedule of Loan Portfolio, Excluding PCI Loans and Related Allowance (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Recorded Investment
Individually Evaluated for Impairment	$ 38,085	$ 30,291
Collectively Evaluated for Impairment	4,008,187	3,769,670
Total	4,046,272	3,799,961
Associated Allowance
Individually Evaluated for Impairment	6,138	2,402
Collectively Evaluated for Impairment	27,727	24,720
Total	33,865	27,122
PCI Loans
Recorded Investment
Individually Evaluated for Impairment	13,051	17,417
Associated Allowance
Individually Evaluated for Impairment	0	0
Real Estate | Construction and land development
Recorded Investment
Individually Evaluated for Impairment	412	474
Collectively Evaluated for Impairment	375,716	341,530
Total	376,128	342,004
Associated Allowance
Individually Evaluated for Impairment	23	23
Collectively Evaluated for Impairment	2,046	1,619
Total	2,069	1,642
Real Estate | Construction and land development | PCI Loans
Recorded Investment
Individually Evaluated for Impairment	129	1,121
Associated Allowance
Individually Evaluated for Impairment	0	0
Real Estate | Commercial real estate
Recorded Investment
Individually Evaluated for Impairment	15,794	8,255
Collectively Evaluated for Impairment	1,699,743	1,621,960
Total	1,715,537	1,630,215
Associated Allowance
Individually Evaluated for Impairment	3,591	195
Collectively Evaluated for Impairment	9,727	9,090
Total	13,318	9,285
Real Estate | Commercial real estate | PCI Loans
Recorded Investment
Individually Evaluated for Impairment	10,838	9,776
Associated Allowance
Individually Evaluated for Impairment	0	0
Real Estate | Residential real estate
Recorded Investment
Individually Evaluated for Impairment	19,804	18,720
Collectively Evaluated for Impairment	1,131,519	1,014,465
Total	1,151,323	1,033,185
Associated Allowance
Individually Evaluated for Impairment	869	1,091
Collectively Evaluated for Impairment	6,776	6,040
Total	7,645	7,131
Real Estate | Residential real estate | PCI Loans
Recorded Investment
Individually Evaluated for Impairment	1,356	5,626
Associated Allowance
Individually Evaluated for Impairment	0	0
Commercial and financial | Commercial and financial
Recorded Investment
Individually Evaluated for Impairment	1,629	2,455
Collectively Evaluated for Impairment	608,598	602,666
Total	610,227	605,121
Associated Allowance
Individually Evaluated for Impairment	1,483	1,050
Collectively Evaluated for Impairment	6,679	6,247
Total	8,162	7,297
Commercial and financial | Commercial and financial | PCI Loans
Recorded Investment
Individually Evaluated for Impairment	728	894
Associated Allowance
Individually Evaluated for Impairment	0	0
Consumer | Consumer
Recorded Investment
Individually Evaluated for Impairment	446	387
Collectively Evaluated for Impairment	192,611	189,049
Total	193,057	189,436
Associated Allowance
Individually Evaluated for Impairment	172	43
Collectively Evaluated for Impairment	2,499	1,724
Total	2,671	1,767
Consumer | Consumer | PCI Loans
Recorded Investment
Individually Evaluated for Impairment	0	0
Associated Allowance
Individually Evaluated for Impairment	$ 0	$ 0

XML

Allowance for Loan Losses - Narrative (Details) - Loans - Bank Shares, Inc - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2018	Dec. 31, 2017
Financing Receivable, Modifications [Line Items]
Remaining fair value adjustment for loans acquired	$ 13.4	$ 19.4
Percentage of fair value adjustment for loans acquired	2.00%	2.20%

XML

Securities Sold Under Agreements to Repurchase - Schedule of Securities Sold Under Agreements to Repurchase and Securities Pledged (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Mortgage-backed securities and collateralized mortgage obligations of U.S. Government Sponsored Entities
Securities Financing Transaction [Line Items]
Mortgage backed securities and collateralized mortgage obligations of U.S. Government Sponsored Entities	$ 189,035	$ 216,094

XML

Noninterest Income and Expense - Summary of Noninterest Income and Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Noninterest income
Service charges on deposit accounts	$ 2,833	$ 2,626	$ 8,179	$ 7,483
Trust fees	1,083	967	3,143	2,764
Mortgage banking fees	1,135	2,138	3,873	4,962
Brokerage commissions and fees	444	351	1,264	1,079
Marine finance fees	194	137	1,213	597
Interchange income	3,119	2,582	9,137	7,747
BOLI income	1,078	836	3,200	2,326
Other income	2,453	1,844	7,497	4,895
Noninterest income, gross	12,339	11,481	37,506	31,853
Securities losses, net	(48)	(47)	(198)	(26)
TOTAL NONINTEREST INCOME (Note H)	12,291	11,434	37,308	31,827
Noninterest expense
Salaries and wages	17,129	15,627	48,939	49,371
Employee benefits	3,205	2,917	9,320	8,920
Outsourced data processing costs	3,493	3,231	10,565	9,956
Telephone/data lines	624	573	1,879	1,753
Occupancy	3,214	2,447	9,647	10,025
Furniture and equipment	1,367	1,191	4,292	4,261
Marketing	1,139	1,298	3,735	3,294
Legal and professional fees	2,019	2,560	6,293	7,968
FDIC assessments	431	548	1,624	1,768
Amortization of intangibles	1,004	839	2,997	2,397
Net (gain)/loss and disposition expense on other real estate owned	(136)	(297)	461	(293)
Other	3,910	3,427	13,057	11,312
Total	$ 37,399	$ 34,361	$ 112,809	$ 110,732

XML

Equity Capital - Narrative (Details)	Sep. 30, 2018
Equity [Abstract]
Regulatory threshold for well-capitalized institutions	6.50%

XML

Fair Value - Fair Value of Assets Measured on Recurring and Nonrecurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale debt securities	$ 923,206	$ 949,460
Loans held for sale	16,172	24,306
Other real estate owned	4,715	7,640
Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale debt securities	923,206	949,460
Loans held for sale	16,172	24,306
Equity securities	6,145	6,344
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale debt securities	99	100
Loans held for sale	0	0
Equity securities	6,145	6,344
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale debt securities	923,107	949,360
Loans held for sale	16,172	24,306
Equity securities	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale debt securities	0	0
Loans held for sale	0	0
Equity securities	0	0
Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	7,268	4,192
Other real estate owned	4,715	7,640
Fair Value, Measurements, Nonrecurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	0	0
Other real estate owned	0	0
Fair Value, Measurements, Nonrecurring | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	2,255	3,454
Other real estate owned	64	60
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	5,013	738
Other real estate owned	$ 4,651	$ 7,580

XML

Fair Value - Aggregate Fair Value and Contractual Balance of Loans for Sale (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2018	Dec. 31, 2017
Fair Value Disclosures [Abstract]
Aggregate fair value	$ 16,172	$ 24,306
Contractual balance	15,722	23,627
Excess	$ 450	$ 679

XML

Fair Value - Narrative (Details) - USD ($) $ in Thousands	9 Months Ended
	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]
Average capitalization rate	7.60%
Specific reserve for impaired loans	$ 33,865	$ 28,924	$ 27,122	$ 26,232	$ 26,000	$ 23,400
Additions	8,200
Paydowns and chargeoffs	3,900
Additions to level 3 from foreclosed loans	300
Other Real Estate Owned
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of impaired loans	7,300		4,200
Specific reserve for impaired loans	6,100		$ 2,400
Increase to level 3 from migrated branches taken out of service	2,000
Reductions related to sale of loans	$ 5,300

XML

Fair Value - Carrying Amount and Fair Value of Other Significant Financial Instruments Not Measured on a Recurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Financial Assets
Debt securities held to maturity	$ 367,387	$ 416,863
Loans, net	4,025,458	3,790,255
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Financial Assets
Debt securities held to maturity	0	0
Time deposits with other banks	0	0
Loans, net	0	0
Financial Liabilities
Deposit liabilities	0	0
Federal Home Loan Bank (FHLB) borrowings	0	0
Subordinated debt	0	0
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Financial Assets
Debt securities held to maturity	353,919	414,470
Time deposits with other banks	0	0
Loans, net	0	0
Financial Liabilities
Deposit liabilities	0	0
Federal Home Loan Bank (FHLB) borrowings	0	0
Subordinated debt	61,716	61,530
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)
Financial Assets
Debt securities held to maturity	0	0
Time deposits with other banks	9,715	12,493
Loans, net	3,982,029	3,760,754
Financial Liabilities
Deposit liabilities	4,638,270	4,588,515
Federal Home Loan Bank (FHLB) borrowings	261,036	211,000
Subordinated debt	0	0
Carrying Value | Fair Value, Measurements, Recurring
Financial Assets
Debt securities held to maturity	367,387	416,863
Time deposits with other banks	9,813	12,553
Loans, net	4,018,190	3,786,063
Financial Liabilities
Deposit liabilities	4,643,510	4,592,720
Federal Home Loan Bank (FHLB) borrowings	261,000	211,000
Subordinated debt	$ 70,734	$ 70,521

XML

Business Combinations - Narrative (Details) $ / shares in Units, $ in Millions	Oct. 19, 2018 branch $ / shares	Nov. 03, 2017 USD ($) branch $ / shares	Oct. 20, 2017 USD ($) branch $ / shares	Apr. 07, 2017 USD ($) branch $ / shares
Gulf Shore Banc shares Inc
Business Acquisition [Line Items]
Number of branches acquired | branch				3
Other assets acquired				$ 358.0
Loans acquired				251.0
Deposits acquired				$ 285.0
Percentage of common stock acquired				100.00%
Cash portion, cash per share for common stock converted (in dollars per share) | $ / shares				$ 1.47
Common stock portion, number of Seacoast stock for each share of stock converted (in shares)				0.4807
Multiplied by common stock price per share (in dollars per share) | $ / shares				$ 23.94
Goodwill recognized from acquisition, nondeductible				$ 37.1
NorthStar Bank
Business Acquisition [Line Items]
Number of branches acquired | branch			3
Other assets acquired			$ 216.0
Loans acquired			137.0
Deposits acquired			$ 182.0
Percentage of common stock acquired			100.00%
Cash portion, cash per share for common stock converted (in dollars per share) | $ / shares			$ 2.40
Common stock portion, number of Seacoast stock for each share of stock converted (in shares)			0.5605
Multiplied by common stock price per share (in dollars per share) | $ / shares			$ 24.92
Goodwill recognized from acquisition, nondeductible			$ 12.3
Palm Beach Community Bank
Business Acquisition [Line Items]
Other assets acquired		$ 357.0
Loans acquired		270.0
Deposits acquired		$ 269.0
Percentage of common stock acquired		100.00%
Cash portion, cash per share for common stock converted (in dollars per share) | $ / shares		$ 6.26
Common stock portion, number of Seacoast stock for each share of stock converted (in shares)		0.924
Multiplied by common stock price per share (in dollars per share) | $ / shares		$ 24.31
Goodwill recognized from acquisition, nondeductible		$ 34.8
First Green Bancorp, Inc. | Subsequent Event
Business Acquisition [Line Items]
Number of branches acquired | branch	7
Percentage of common stock acquired	100.00%
Common stock portion, number of Seacoast stock for each share of stock converted (in shares)	0.7324
Multiplied by common stock price per share (in dollars per share) | $ / shares	$ 26.87
Palm Beach Community Bank
Business Acquisition [Line Items]
Number of branches operated | branch		4

XML

Business Combinations - Purchase Price (Details) $ / shares in Units, $ in Thousands	Oct. 19, 2018 USD ($) $ / shares shares	Nov. 03, 2017 USD ($) $ / shares shares	Oct. 20, 2017 USD ($) $ / shares shares	Apr. 07, 2017 USD ($) $ / shares shares
Gulf Shore Banc shares Inc
Business Acquisition [Line Items]
Value of shares exchanged for cash				$ 8,034
Number of shares outstanding (in shares) | shares				5,464,000
Common stock portion, number of Seacoast stock for each share of stock converted (in shares)				0.4807
Number of shares of Seacoast common stock issued (in shares) | shares				2,627,000
Multiplied by common stock price per share (in dollars per share) | $ / shares				$ 23.94
Value of common stock issued				$ 62,883
Total purchase price				$ 70,917
NorthStar Bank
Business Acquisition [Line Items]
Value of shares exchanged for cash			$ 4,701
Number of shares outstanding (in shares) | shares			1,958,000
Common stock portion, number of Seacoast stock for each share of stock converted (in shares)			0.5605
Number of shares of Seacoast common stock issued (in shares) | shares			1,098,000
Multiplied by common stock price per share (in dollars per share) | $ / shares			$ 24.92
Value of common stock issued			$ 27,353
Cash paid for NorthStar Banking vested Corporation stock options			801
Total purchase price			$ 32,855
Palm Beach Community Bank
Business Acquisition [Line Items]
Value of shares exchanged for cash		$ 15,694
Number of shares outstanding (in shares) | shares		2,507,000
Common stock portion, number of Seacoast stock for each share of stock converted (in shares)		0.924
Number of shares of Seacoast common stock issued (in shares) | shares		2,316,000
Multiplied by common stock price per share (in dollars per share) | $ / shares		$ 24.31
Value of common stock issued		$ 56,312
Total purchase price		$ 72,006
First Green Bancorp, Inc. | Subsequent Event
Business Acquisition [Line Items]
Number of shares outstanding (in shares) | shares	5,462,000
Common stock portion, number of Seacoast stock for each share of stock converted (in shares)	0.7324
Number of shares of Seacoast common stock issued (in shares) | shares	4,000,000
Multiplied by common stock price per share (in dollars per share) | $ / shares	$ 26.87
Value of common stock issued	$ 107,486
Cash paid for NorthStar Banking vested Corporation stock options	6,558
Total purchase price	$ 114,044

XML

Business Combinations - Fair Value of the Assets Purchased, Including Goodwill, and Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017	Nov. 03, 2017	Oct. 20, 2017	Apr. 07, 2017
Assets:
Goodwill	$ 148,555	$ 147,578
Gulf Shore Banc shares Inc
Assets:
Other assets					$ 358,000
Gulf Shore Banc shares Inc | Measurement Period Adjustments
Assets:
Cash					0
Investment securities					0
Loans, net					0
Fixed assets					0
Other real estate owned					0
Core deposit intangibles					0
Goodwill					0
Other assets					0
Total assets acquired					0
Liabilities:
Deposits					0
Other liabilities					0
Total liabilities assumed					0
Gulf Shore Banc shares Inc | Initially Reported
Assets:
Cash					55,540
Investment securities					316
Loans, net					250,876
Fixed assets					1,307
Other real estate owned					13
Core deposit intangibles					3,927
Goodwill					37,098
Other assets					8,572
Total assets acquired					357,649
Liabilities:
Deposits					285,350
Other liabilities					1,382
Total liabilities assumed					286,732
Gulf Shore Banc shares Inc | As Adjusted
Assets:
Cash					55,540
Investment securities					316
Loans, net					250,876
Fixed assets					1,307
Other real estate owned					13
Core deposit intangibles					3,927
Goodwill					37,098
Other assets					8,572
Total assets acquired					357,649
Liabilities:
Deposits					285,350
Other liabilities					1,382
Total liabilities assumed					$ 286,732
NorthStar Bank
Assets:
Other assets				$ 216,000
NorthStar Bank | Measurement Period Adjustments
Assets:
Cash				0
Investment securities				0
Loans, net				0
Fixed assets				0
Core deposit intangibles				0
Goodwill				(99)
Other assets				99
Total assets acquired				0
Liabilities:
Deposits				0
Other liabilities				0
Total liabilities assumed				0
NorthStar Bank | Initially Reported
Assets:
Cash				5,485
Investment securities				56,123
Loans, net				136,832
Fixed assets				2,637
Core deposit intangibles				1,275
Goodwill				12,404
Other assets				1,522
Total assets acquired				216,278
Liabilities:
Deposits				182,443
Other liabilities				980
Total liabilities assumed				183,423
NorthStar Bank | As Adjusted
Assets:
Cash				5,485
Investment securities				56,123
Loans, net				136,832
Fixed assets				2,637
Core deposit intangibles				1,275
Goodwill				12,305
Other assets				1,621
Total assets acquired				216,278
Liabilities:
Deposits				182,443
Other liabilities				980
Total liabilities assumed				$ 183,423
Palm Beach Community Bank
Assets:
Other assets			$ 357,000
Palm Beach Community Bank | Measurement Period Adjustments
Assets:
Cash			0
Investment securities			0
Loans, net			(1,772)
Fixed assets			0
Core deposit intangibles			0
Goodwill			1,323
Other assets			449
Total assets acquired			0
Liabilities:
Deposits			0
Other liabilities			0
Total liabilities assumed			0
Palm Beach Community Bank | Initially Reported
Assets:
Cash			9,301
Investment securities			22,098
Loans, net			272,090
Fixed assets			7,641
Core deposit intangibles			2,523
Goodwill			33,428
Other assets			9,909
Total assets acquired			356,990
Liabilities:
Deposits			268,633
Other liabilities			16,351
Total liabilities assumed			284,984
Palm Beach Community Bank | As Adjusted
Assets:
Cash			9,301
Investment securities			22,098
Loans, net			270,318
Fixed assets			7,641
Core deposit intangibles			2,523
Goodwill			34,751
Other assets			10,358
Total assets acquired			356,990
Liabilities:
Deposits			268,633
Other liabilities			16,351
Total liabilities assumed			$ 284,984

XML

Business Combinations - Fair Value of Acquired Loans (Details) - USD ($) $ in Thousands	Nov. 03, 2017	Oct. 20, 2017	Apr. 07, 2017
Gulf Shore Banc shares Inc
Business Acquisition [Line Items]
Book Balance			$ 256,876
Fair Value			250,876
Gulf Shore Banc shares Inc | Commercial real estate
Business Acquisition [Line Items]
Book Balance			106,729
Fair Value			103,905
Gulf Shore Banc shares Inc | Commercial loans
Business Acquisition [Line Items]
Book Balance			32,137
Fair Value			32,247
Gulf Shore Banc shares Inc | Single family residential real estate
Business Acquisition [Line Items]
Book Balance			101,281
Fair Value			99,598
Gulf Shore Banc shares Inc | Construction/development/land
Business Acquisition [Line Items]
Book Balance			13,175
Fair Value			11,653
Gulf Shore Banc shares Inc | Consumer and other loans
Business Acquisition [Line Items]
Book Balance			3,554
Fair Value			3,473
Gulf Shore Banc shares Inc | Purchased credit-impaired
Business Acquisition [Line Items]
Book Balance			0
Fair Value			$ 0
NorthStar Bank
Business Acquisition [Line Items]
Book Balance		$ 143,444
Fair Value		136,832
NorthStar Bank | Commercial real estate
Business Acquisition [Line Items]
Book Balance		73,139
Fair Value		69,554
NorthStar Bank | Commercial loans
Business Acquisition [Line Items]
Book Balance		31,200
Fair Value		30,854
NorthStar Bank | Single family residential real estate
Business Acquisition [Line Items]
Book Balance		15,111
Fair Value		15,096
NorthStar Bank | Construction/development/land
Business Acquisition [Line Items]
Book Balance		11,706
Fair Value		10,390
NorthStar Bank | Consumer and other loans
Business Acquisition [Line Items]
Book Balance		6,761
Fair Value		6,645
NorthStar Bank | Purchased credit-impaired
Business Acquisition [Line Items]
Book Balance		5,527
Fair Value		$ 4,293
Palm Beach Community Bank
Business Acquisition [Line Items]
Book Balance	$ 275,567
Fair Value	270,318
Palm Beach Community Bank | Commercial real estate
Business Acquisition [Line Items]
Book Balance	134,705
Fair Value	132,089
Palm Beach Community Bank | Commercial loans
Business Acquisition [Line Items]
Book Balance	36,076
Fair Value	35,876
Palm Beach Community Bank | Single family residential real estate
Business Acquisition [Line Items]
Book Balance	30,153
Fair Value	30,990
Palm Beach Community Bank | Construction/development/land
Business Acquisition [Line Items]
Book Balance	69,686
Fair Value	67,425
Palm Beach Community Bank | Consumer and other loans
Business Acquisition [Line Items]
Book Balance	179
Fair Value	172
Palm Beach Community Bank | Purchased credit-impaired
Business Acquisition [Line Items]
Book Balance	4,768
Fair Value	$ 3,766

XML

Business Combinations - Purchased Credit Impaired Loans (Details) - USD ($) $ in Thousands	Nov. 03, 2017	Oct. 20, 2017
NorthStar Bank
Business Acquisition [Line Items]
Total purchased credit-impaired loan acquired		$ 136,832
NorthStar Bank | Purchased Credit Impaired Loans
Business Acquisition [Line Items]
Contractually required principal and interest		5,596
Non-accretable difference		(689)
Cash flows expected to be collected		4,907
Accretable yield		(614)
Total purchased credit-impaired loan acquired		$ 4,293
Palm Beach Community Bank
Business Acquisition [Line Items]
Total purchased credit-impaired loan acquired	$ 270,318
Palm Beach Community Bank | Purchased Credit Impaired Loans
Business Acquisition [Line Items]
Contractually required principal and interest	4,768
Non-accretable difference	(1,002)
Cash flows expected to be collected	3,766
Accretable yield	0
Total purchased credit-impaired loan acquired	$ 3,766

XML

Business Combinations - Pro-Forma Information (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2017
Business Combinations [Abstract]
Net interest income	$ 51,115	$ 146,668
Net income	$ 16,321	$ 37,149
EPS - basic (in dollars per share)	$ 0.35	$ 0.81
EPS - diluted (in dollars per share)	$ 0.35	$ 0.80