SouthState (SSB) 10-K 23 Feb 18 2017 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2017	Feb. 21, 2018	Jun. 30, 2017
Document and Entity Information
Entity Registrant Name	SOUTH STATE Corp
Entity Central Index Key	764,038
Document Type	10-K
Document Period End Date	Dec. 31, 2017
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Public Float			$ 2,110,172,000
Entity Common Stock, Shares Outstanding		36,785,071
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	FY

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Cash and cash equivalents:
Cash and due from banks	$ 255,775	$ 201,966
Interest-bearing deposits with banks	117,635	36,241
Federal funds sold and securities purchased under agreements to resell	4,217	136,241
Total cash and cash equivalents	377,627	374,448
Investment securities:
Securities held to maturity (fair value of $2,556 and $6,250, respectively)	2,529	6,094
Securities available for sale, at fair value	1,650,710	999,405
Other investments	20,530	9,482
Total investment securities	1,673,769	1,014,981
Loans held for sale	70,890	50,572
Loans:
Total loans	1,289
Loans, net	10,575,417	6,643,326
Other real estate owned	11,203	18,316
Premises and equipment, net	255,565	183,510
Bank owned life insurance	225,132	104,148
Deferred tax assets	45,902	31,123
Mortgage servicing rights	31,119	29,037
Core deposit and other intangibles	73,789	39,848
Goodwill	999,586	338,340
Other assets	126,590	72,943
Total assets	14,466,589	8,900,592
Deposits:
Noninterest-bearing	3,047,432	2,199,046
Interest-bearing	8,485,334	5,135,377
Total deposits	11,532,766	7,334,423
Federal funds purchased and securities sold under agreements to repurchase	286,857	313,773
Other borrowings	216,385	55,358
Other liabilities	121,661	62,450
Total liabilities	12,157,669	7,766,004
Shareholders' equity:
Preferred stock - $.01 par value; authorized 10,000,000 shares; no shares issued and outstanding
Common stock - $2.50 par value; authorized 80,000,000 and 40,000,000 shares, respectively; 36,759,656 and 24,230,392 shares issued and outstanding, respectively	91,899	60,576
Surplus	1,807,601	711,307
Retained earnings	419,847	370,916
Accumulated other comprehensive income (loss)	(10,427)	(8,211)
Total shareholders' equity	2,308,920	1,134,588
Total liabilities and shareholders' equity	14,466,589	8,900,592
Acquired credit impaired loans
Loans:
Loans, net	618,803	602,546
Non-acquired loans
Loans:
Loans, net	6,492,155	5,241,041
Total loans	6,492,155	5,241,041
Less allowance for non-acquired loan losses	(43,448)	(36,960)
Loans, net	6,448,707	5,204,081
Acquired non-credit impaired loans
Loans:
Loans, net	3,507,907	836,699
Total loans	$ 3,507,907	$ 836,699

Condensed Consolidated Balance3

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Shareholders' equity:
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value (in dollars per share)	$ 2.50	$ 2.50
Common stock, shares authorized	80,000,000	40,000,000
Common stock, shares issued	36,759,656	24,230,392
Common stock, shares outstanding	36,759,656	24,230,392
Investment securities:
Securities held to maturity, fair value (in dollars)	$ 2,556	$ 6,250

Condensed Consolidated Statemen

Condensed Consolidated Statements of Income - USD ($) shares in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Interest income:
Loans, including fees	$ 389,535,000	$ 308,461,000	$ 315,574,000
Investment securities:
Taxable	28,165,000	18,025,000	16,110,000
Tax-exempt	5,591,000	3,884,000	4,300,000
Federal funds sold and securities purchased under agreements to resell	2,709,000	2,793,000	2,117,000
Total interest income	426,000,000	333,163,000	338,101,000
Interest expense:
Deposits	12,353,000	5,803,000	7,344,000
Federal funds purchased and securities sold under agreements to repurchase	1,080,000	574,000	395,000
Other borrowings	3,581,000	1,940,000	2,589,000
Total interest expense	17,014,000	8,317,000	10,328,000
Net interest income	408,986,000	324,846,000	327,773,000
Provision for loan losses	11,890,000	6,819,000	5,864,000
Net interest income after provision for loan losses	397,096,000	318,027,000	321,909,000
Noninterest income:
Fees on deposit accounts	89,882,000	82,897,000	74,479,000
Mortgage banking income	17,954,000	20,547,000	21,761,000
Trust and investment services income	25,401,000	19,764,000	20,117,000
Securities gains, net	1,421,000	122,000
Other-than-temporary impairment on securities	(753,000)		(489,000)
Recoveries on acquired loans	8,572,000	6,465,000	2,976,000
Amortization of FDIC indemnification asset, net		(5,902,000)	(8,587,000)
Other	6,670,000	6,437,000	5,298,000
Total noninterest income	149,147,000	130,330,000	115,555,000
Noninterest expense:
Salaries and employee benefits	194,446,000	164,663,000	161,304,000
Net occupancy expense	25,357,000	21,712,000	21,105,000
Information services expense	25,462,000	20,549,000	17,810,000
Furniture and equipment expense	15,568,000	12,403,000	11,233,000
OREO expense and loan related	6,721,000	6,307,000	9,595,000
Bankcard expense	11,298,000	11,723,000	9,320,000
Amortization of intangibles	10,353,000	7,577,000	8,324,000
Supplies, printing and postage expense	6,148,000	6,279,000	5,919,000
Professional fees	5,975,000	6,702,000	5,533,000
FDIC assessment and other regulatory charges	3,924,000	3,896,000	4,714,000
Advertising and marketing	3,963,000	3,092,000	3,838,000
Merger related expense	44,503,000	8,081,000	6,945,000
Other	23,720,000	21,331,000	21,449,000
Total noninterest expense	377,438,000	294,315,000	287,089,000
Earnings:
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total	168,805,000	154,042,000	150,375,000
Provision for income taxes	81,251,000	52,760,000	50,902,000
Net income	87,554,000	101,282,000	99,473,000
Net income	$ 87,554,000	$ 101,282,000	$ 99,473,000
Earnings per common share:
Basic (in dollars per share)	$ 2.95	$ 4.22	$ 4.15
Diluted (in dollars per share)	2.93	4.18	4.11
Dividends per common share (in dollars per share)	$ 1.32	$ 1.21	$ 0.98
Weighted-average common shares outstanding:
Basic (in shares)	29,686	23,998	23,966
Diluted (in shares)	29,922	24,219	24,224

Condensed Consolidated Stateme5

Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Condensed Consolidated Statements of Comprehensive Income
Net income	$ 87,554	$ 101,282	$ 99,473
Unrealized gains (losses) on securities:
Unrealized holding gains (losses) arising during period	(3,486)	(6,821)	(5,142)
Tax effect	1,329	2,600	1,961
Reclassification adjustment for (gains) losses and OTTI included in net income	(668)	(122)	489
Tax effect	255	47	(187)
Net of tax amount	(2,570)	(4,296)	(2,879)
Unrealized losses on derivative financial instruments qualifying as cash flow hedges:
Unrealized holding losses arising during period	(22)	(55)	(168)
Tax effect	9	21	64
Reclassification adjustment for losses included in interest expense	275	275	305
Tax effect	(105)	(105)	(116)
Net of tax amount	157	136	85
Change in pension plan obligation:
Change in pension and retiree medical plan obligation during period	(589)	(1,202)	(2,229)
Tax effect	224	453	897
Reclassification adjustment for changes included in net income	908	920	1,021
Tax effect	(346)	(351)	(389)
Net of tax amount	197	(180)	(700)
Other comprehensive income (loss), net of tax	(2,216)	(4,340)	(3,494)
Comprehensive income	$ 85,338	$ 96,942	$ 95,979

Condensed Consolidated Stateme6

Condensed Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands	Southeastern Bank FinancialCommon Stock2004 Buyback Plan [Member]	Southeastern Bank FinancialSurplus2004 Buyback Plan [Member]	Southeastern Bank Financial2004 Buyback Plan [Member]	Park Sterling CorporationCommon Stock	Park Sterling CorporationSurplus	Park Sterling Corporation	Common Stock2004 Buyback Plan [Member]	Common StockOther Than 2004 Buyback Plan	Common Stock	Surplus2004 Buyback Plan [Member]	SurplusOther Than 2004 Buyback Plan	Surplus	Retained Earnings	Accumulated Other Comprehensive Income (Loss).	2004 Buyback Plan [Member]	Other Than 2004 Buyback Plan	Total
Balance at Dec. 31, 2014									$ 60,377			$ 701,764	$ 223,156	$ (377)			$ 984,920
Balance (in shares) at Dec. 31, 2014									24,150,702
Increase (Decrease) in Stockholders' Equity
Other Comprehensive Income, net of tax effects														(3,494)			(3,494)
Total Comprehensive income																	95,979
Net income													99,473				99,473
Cash dividends declared on common stock per share													(23,710)				(23,710)
Employee stock purchases									$ 34			874					908
Employee stock purchases (in shares)									13,536
Stock options exercised									$ 89			1,026					1,115
Stock options exercised (in shares)									35,360
Restricted stock awards									$ 110			(110)
Restricted stock awards (in shares)									44,105
Common stock repurchased							$ (150)	$ (53)		$ (4,119)	$ (1,309)				$ (4,269)	$ (1,362)	$ (4,300)
Common stock repurchased (in shares)							(60,000)	(21,046)									(60,000)
Share-based compensation expense												5,803					$ 5,803
Balance at Dec. 31, 2015									$ 60,407			703,929	298,919	(3,871)			1,059,384
Balance (in shares) at Dec. 31, 2015									24,162,657
Increase (Decrease) in Stockholders' Equity
Other Comprehensive Income, net of tax effects														(4,340)			(4,340)
Total Comprehensive income																	96,942
Net income													101,282				101,282
Cash dividends declared on common stock per share													(29,285)				(29,285)
Employee stock purchases									$ 36			889					925
Employee stock purchases (in shares)									14,516
Stock options exercised									$ 158			2,046					2,204
Stock options exercised (in shares)									63,527
Restricted stock awards									$ 106			(106)
Restricted stock awards (in shares)									42,226
Stock issued pursuant to restricted stock units.									$ 90			(90)
Stock issued pursuant to restricted stock units (in shares)									35,903
Excess tax benefits in connection with equity awards												4,178					4,178
Value of common stock repurchased buyback plan							$ (82)	$ (139)		$ (2,048)	(3,712)				$ (2,130)	(3,851)
Common stock repurchased buyback plan (in shares)							(32,900)	(55,537)
Share-based compensation expense												6,221					6,221
Balance at Dec. 31, 2016									$ 60,576			711,307	370,916	(8,211)			$ 1,134,588
Balance (in shares) at Dec. 31, 2016									24,230,392								24,230,392
Balance (in shares) Preferred Stock at Dec. 31, 2016																	0
Increase (Decrease) in Stockholders' Equity
Other Comprehensive Income, net of tax effects														(2,216)			$ (2,216)
Total Comprehensive income																	85,338
Net income													87,554				87,554
Cash dividends declared on common stock per share													(38,623)				(38,623)
Employee stock purchases									$ 32			1,023					1,055
Employee stock purchases (in shares)									12,798
Stock options exercised									$ 149			1,816					1,965
Stock options exercised (in shares)									59,480
Common stock issued for acquisition	$ 12,446	$ 422,163	$ 434,609	$ 18,701	$ 669,865	$ 688,566
Common stock issued for acquisition (in shares)	(4,978,338)			7,480,343
Restricted stock awards									$ 53			(53)
Restricted stock awards (in shares)									21,628
Stock issued pursuant to restricted stock units.									$ 95			(95)
Stock issued pursuant to restricted stock units (in shares)									37,802
Common stock repurchased								$ (153)			$ (5,359)					$ (5,512)
Common stock repurchased (in shares)								(61,125)
Share-based compensation expense												6,934					6,934
Balance at Dec. 31, 2017									$ 91,899			$ 1,807,601	$ 419,847	$ (10,427)			$ 2,308,920
Balance (in shares) at Dec. 31, 2017									36,759,656								36,759,656
Balance (in shares) Preferred Stock at Dec. 31, 2017																	0

Condensed Consolidated Stateme7

Condensed Consolidated Statements of Changes in Shareholders' Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Condensed Consolidated Statements of Changes in Shareholders' Equity
Cash dividends declared, per share (in dollars per share)	$ 1.32	$ 1.21	$ 0.98

Condensed Consolidated Stateme8

Condensed Consolidated Statements of Cash Flows - USD ($) shares in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Cash flows from operating activities:
Net income	$ 87,554,000	$ 101,282,000	$ 99,473,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	28,704,000	21,582,000	21,470,000
Provision for loan losses	11,890,000	6,819,000	5,864,000
Deferred income taxes	5,640,000	9,378,000	7,048,000
Write Down In Deferred Tax Asset Due To Tax Rate Changes	26,558,000
Other-than-temporary impairment on securities	753,000		489,000
(Gain) loss on sale of securities, net	(1,421,000)	(122,000)
Share-based compensation expense	6,934,000	6,220,000	5,803,000
Amortization on FDIC indemnification asset		3,566,000	8,587,000
Accretion of discount related to performing acquired loans	(15,893,000)	(5,187,000)	(6,638,000)
(Gain) Loss on disposals of premises and equipment	177,000	(60,000)	576,000
Gain on sale of OREO	101,000	(1,735,000)	(1,674,000)
Net amortization of premium on investment securities	6,853,000	5,409,000	4,415,000
OREO Write downs	2,249,000	4,401,000	9,428,000
Fair Value adjustment for loans held for sale	752,000	495,000	515,000
Originations and purchases of mortgage loans for sale	(682,403,000)	(771,105,000)	(844,401,000)
Proceeds from mortgage loans sales	745,871,000	761,688,000	864,171,000
Net change in:
Accrued interest receivable	(2,198,000)	(1,536,000)	(717,000)
Prepaid assets	6,000	(804,000)	(876,000)
FDIC indemnification asset		3,177,000	9,173,000
Miscellaneous other assets	(32,324,000)	(13,799,000)	(4,861,000)
Accrued interest payable	(948,000)	(831,000)	(2,121,000)
Accrued income taxes	1,959,000	105,000	13,095,000
Miscellaneous other liabilities	7,076,000	9,068,000	(1,951,000)
Net cash provided by operating activities	197,890,000	138,011,000	186,868,000
Cash flows from investing activities:
Proceeds from sales of investment securities available for sale	374,938,000	137,000
Proceeds from maturities and calls of investment securities held to maturity	3,570,000	3,225,000	345,000
Proceeds from maturities and calls of investment securities available for sale	235,757,000	383,577,000	223,750,000
Proceeds from calls of other investment securities			1,392,000
Proceeds from sales of other investment securities	15,302,000	71,000	233,000
Purchases of investment securities available for sale	(241,274,000)	(385,813,000)	(436,081,000)
Purchases of other investment securities	(4,553,000)	(660,000)
Net increase in loans	(636,836,000)	(690,495,000)	(318,936,000)
Payment to terminate FDIC Loss Share Agreements		(2,342,000)
Recoveries of loans previously charged off	3,430,000	3,552,000	2,800,000
Net cash received from acquisitions	185,163,000		403,548,000
Purchases of premises and equipment	(15,163,000)	(25,796,000)	(15,225,000)
Proceeds from sale of OREO	18,751,000	23,565,000	35,120,000
Proceeds from sale of premises and equipment	15,000	60,000	39,000
Net cash provided by (used in) investing activities	(60,900,000)	(690,919,000)	(103,015,000)
Cash flows from financing activities:
Net increase (decrease) in deposits	226,045,000	233,993,000	201,097,000
Net increase in federal funds purchased and securities sold under agreements to repurchase and other short-term borrowings	(27,930,000)	25,542,000	66,691,000
Proceeds from FHLB advances	100,000,000
Repayment of other borrowings	(390,811,000)	(14,000)	(46,398,000)
Common stock issuance	1,055,000	925,000	908,000
Common stock repurchase	(5,512,000)	(5,981,000)	(5,631,000)
Dividends paid on common stock	(38,623,000)	(29,285,000)	(23,710,000)
Excess tax benefits in connection with equity awards		4,178,000
Stock options exercised	1,965,000	2,204,000	1,115,000
Net cash provided by financing activities	(133,811,000)	231,562,000	194,072,000
Net increase (decrease) in cash and cash equivalents	3,179,000	(321,346,000)	277,925,000
Cash and cash equivalents at beginning of period	374,448,000	695,794,000	417,869,000
Cash and cash equivalents at end of period	377,627,000	374,448,000	695,794,000
Cash paid for:
Interest	17,962,000	9,148,000	12,449,000
Income taxes	48,028,000	39,490,000	31,375,000
Acquisitions:
Fair value of tangible assets acquired	4,900,334,000		435,912,000
Other intangible assets acquired	44,295,000		6,800,000
Liabilities assumed	4,477,801,000		438,345,000
Net identifiable assets acquired over (under) liabilities assumed	$ 466,828,000		4,367,000
Common stock issued in acquisition	1,123,175
Loans sold that have not settled	$ 28,663,000
Real estate acquired in full or in partial settlement of loans	$ 11,558,000	$ 13,993,000	$ 30,702,000

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2017
Summary of Significant Accounting Policies
Summary of Significant Accounting Policies	Note 1—Summary of Significant Accounting Policies Nature of Operations South State Corporation (the “Company”) is a bank holding company whose principal activity is the ownership and management of its wholly owned subsidiary, South State Bank (the “Bank”). The Bank also operates Minis & Co., Inc. and South State Advisory (formerly First Southeast 401k Fiduciaries), both wholly-owned registered investment advisors. The Bank provides general banking services within 29 counties in South Carolina, 9 counties in North Carolina, 19 counties in Georgia and four counties in Virginia. The accounting and reporting policies of the Company and its consolidated subsidiary conform to accounting principles generally accepted in the United States of America (‘U.S. GAAP”). There are thirteen unconsolidated subsidiaries of the Company that were established for the purpose of issuing in the aggregate $115.0 million of trust preferred securities. The thirteen capital trusts include the following: SCBT Capital Trust I at $12.0 million; SCBT Capital Trust II at $8.0 million; SCBT Capital Trust III at $20.0 million; TSB Statutory Trust I at $3.0 million; SAVB Capital Trust I at $6.0 million; SAVB Capital Trust II at $4.0 million; Southeastern Bank Financial Statutory Trust I at $10.0 million; Southeastern Bank Financial Statutory Trust II at $10.0 million; Provident Community Bancshares Capital Trust I at $4.0 million; FCRV Statutory Trust I at $5.0 million; Community Capital Statutory Trust I at $10.0 million; CSBC Statutory Trust I at $15.0 million and Provident Community Bancshares Capital Trust II at $8.0 million. Unless otherwise mentioned or unless the context requires otherwise, references herein to "South State," the "Company" "we," "us," "our" or similar references mean South State Corporation and its consolidated subsidiary. References to the “Bank” means South State Bank, a South Carolina banking corporation. Basis of Consolidation The consolidated financial statements include the accounts of the Company and other entities in which it has a controlling financial interest. All significant intercompany balances and transactions have been eliminated in consolidation. Assets held by the Company in trust are not assets of the Company and are not included in the accompanying consolidated financial statements. Segments The Company, through its subsidiary, provides a broad range of financial services to individuals and companies in South Carolina, North Carolina, Georgia and Virginia. These services include demand, time and savings deposits; lending and credit card servicing; ATM processing; mortgage banking services; and wealth management and trust services. While the Company’s decision makers monitor the revenue streams of the various financial products and services, operations are managed and financial performance is evaluated on an organization‑wide basis. Accordingly, the Company’s banking and finance operations are not considered by management to constitute more than one reportable operating segment. Use of Estimates The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the consolidated balance sheet and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Material estimates that are particularly susceptible to significant change in the near term relate to the determination of the allowance for loan losses, fair value of financial instruments, fair values of assets and liabilities acquired in business combinations, loss estimates related to loans and other real estate acquired, evaluating other‑than‑temporary impairment of investment securities, goodwill impairment tests and valuation of deferred tax assets In connection with the determination of the allowance for loan losses, management has identified specific loans as well as adopted a policy of providing amounts for loan valuation purposes which are not identified with any specific loan but are derived from actual loss experience ratios, loan types, loan volume, economic conditions and industry standards. Management believes that the allowance for loan losses is adequate. While management uses available information to recognize losses on loans, future additions to the allowance may be necessary based on changes in economic conditions. In addition, regulatory agencies, as an integral part of the examination process, periodically review the banking subsidiary’s allowance for loan losses. Such agencies may require additions to the allowance based on their judgments about information available to them at the time of their examination. Concentrations of Credit Risk The Company’s subsidiary grants agribusiness, commercial, and residential loans to customers throughout South Carolina, North Carolina, Virginia and Georgia. Although the subsidiary has a diversified loan portfolio, a substantial portion of their borrowers’ abilities to honor their contracts is dependent upon economic conditions within South Carolina, North Carolina, Georgia and the surrounding regions. The Company considers concentrations of credit to exist when, pursuant to regulatory guidelines, the amounts loaned to a multiple number of borrowers engaged in similar business activities which would cause them to be similarly impacted by general economic conditions represents 25% of total risk‑based capital, or $358.2 million at December 31, 2017. Based on this criteria, the Company had four such credit concentrations for non‑acquired and acquired non‑credit impaired loans at December 31, 2017, including $524.1 million of loans to lessors of residential buildings (investment properties and multi-family), $1.3 billion of loans to lessors of nonresidential buildings (except mini‑warehouses) $358.6 million of loans to religious organizations, and $545.8 million of loans for construction. Cash and Cash Equivalents For the purpose of presentation in the consolidated statements of cash flows, cash and cash equivalents include cash on hand, cash items in process of collection, amounts due from banks, interest bearing deposits with banks, purchases of securities under agreements to resell, and federal funds sold. Due from bank balances are maintained in other financial institutions. Federal funds sold are generally purchased and sold for one-day periods, but may, from time to time, have longer terms. The Company enters into purchases of securities under agreements to resell substantially identical securities typically for the purpose of obtaining securities on a short‑term basis for collateralizing certain customer deposit relationships. Securities purchased under agreements to resell at December 31, 2017 and 2016 consisted of U.S. government‑sponsored entities and agency mortgage‑backed securities. It is the Company’s policy to take possession of securities purchased under agreements to resell. The securities are delivered into the Company’s account maintained by a third‑party custodian designated by the Company under a written custodial agreement that explicitly recognizes the Company’s interest in the securities. The Company monitors the market value of the underlying securities, including accrued interest, which collateralizes the related receivable on agreements to resell. At December 31, 2017, these agreements were considered to be cash equivalents with maturities of three months or less. Investment Securities Debt securities that management has the positive intent and ability to hold to maturity are classified as “held to maturity” and carried at amortized cost. Securities not classified as held to maturity, including equity securities with readily determinable fair values, are classified as “available for sale” and carried at fair value with unrealized gains and losses excluded from earnings and reported in other comprehensive income. Purchase premiums and discounts are recognized in interest income using methods approximating the interest method over the terms of the securities. Declines in the fair value of held‑to‑maturity and available‑for‑sale securities below their cost that are deemed to be other than temporary are reflected in earnings as realized losses. Gains and losses realized on sales of securities available for sale are determined using the specific identification method. The Company evaluates securities for other‑than‑temporary impairment (“OTTI”) at least on a quarterly basis, and more frequently when economic or market concerns warrant such evaluation. In estimating OTTI losses, management considers: (1) the financial condition and near-term prospects of the issuer, (2) the outlook for receiving the contractual cash flows of the investments, (3) the length of time and the extent to which the fair value has been less than cost, (4) the intent and ability of the Company to retain its investment in the issuer for a period of time sufficient to allow for any anticipated recovery in fair value or for a debt security whether it is more‑likely‑than‑not that the Company will be required to sell the debt security prior to recovering its fair value, and (5) the anticipated outlook for changes in the general level of interest rates. (see Note 3—Investment Securities). Other investments include stock acquired for regulatory purposes and investments in unconsolidated subsidiaries. Stock acquired for regulatory purposes include Federal Home Loan Bank of Atlanta (“FHLB”) stock. These securities do not have a readily determinable fair value because their ownership is restricted and they lack a market for trading. As a result, these securities are carried at cost and are periodically evaluated for impairment. Investments in unconsolidated subsidiaries represent a minority investment in SCBT Capital Trust I, SCBT Capital Trust II, SCBT Capital Trust III, TSB Statutory Trust I, SAVB Capital Trust I, SAVB Capital Trust II, Southeastern Bank Financial Statutory Trust I, Southeastern Bank Financial Statutory Trust II, Provident Community Bancshares Capital Trust I, FCRV Statutory Trust I, Community Capital Statutory Trust I, CSBC Statutory Trust I and Provident Community Bancshares Capital Trust II. These investments are recorded at cost and the Company receives quarterly dividend payments on these investments. Loans Held for Sale Loans originated and intended for sale are carried at the estimated fair value in the aggregate. Estimated fair value is determined on the basis of existing forward commitments, or the current market value of similar loans. Net unrealized losses, if any, are recognized through a valuation allowance by charges to income. Loans held‑for‑sale are sold to investors either under guaranteed delivery or with the best effort intent and ability to sell loans as long as they meet the underwriting standards of the potential investor. Loans Loans that management has originated and has the intent and ability to hold for the foreseeable future or until maturity or pay‑off generally are reported at their unpaid principal balances, less unearned income and net of any deferred loan fees and costs. Unearned income on installment loans is recognized as income over the terms of the loans by methods that generally approximate the interest method. Interest on other loans is calculated by using the simple interest method on daily balances of the principal amount outstanding. We place non‑acquired loans and acquired non-credit impaired loans on nonaccrual once reasonable doubt exists about the collectability of all principal and interest due. Generally, this occurs when principal or interest is 90 days or more past due, unless the loan is well secured and in the process of collection. A loan is considered impaired when, in management’s judgment, based on current information and events, it is probable that the Company will be unable to collect the scheduled payments of principal and interest when due according to the contractual terms of the loan agreement. Factors considered by management in determining impairment include payment status, collateral value, and the probability of collecting scheduled principal and interest payments when due. Management determines when loans become impaired through its normal loan administration and review functions. Loans identified as nonaccrual are potentially impaired loans. Loans that experience insignificant payment delays and payment shortfalls generally are not classified as impaired, provided that management expects to collect all amounts due, including interest accrued at the contractual interest rate for the period of delay. Impairment is measured on a loan by loan basis for commercial and construction loans by either the present value of expected future cash flows discounted at the loan’s effective interest rate, the loan’s obtainable market price, or the fair value of the collateral if the loan is collateral dependent. Interest income recognition on non‑acquired impaired loans is discontinued when the loans meet the criteria for nonaccrual status described above. Large groups of smaller balance homogeneous non‑acquired loans are collectively evaluated for loss and a general reserve is established accordingly. Acquired credit impaired loans are initially recorded at a discount to recognize the difference in the fair value of the loans and the contractual balance. The discount includes a component to recognize the absolute difference between the contractual value and the amount expected to be collected (total cash flow) as well as a component to recognize the net present value of that future amount to be collected. The net present value component is accretable into income, and therefore generates a yield on all acquired credit impaired loans, regardless of past due status. Therefore, acquired credit impaired loans are considered to be accruing loans. Acquired credit impaired loans that are greater than 90 days past due are placed into the greater than 90 days past due and still accruing category when analyzing the aging status of the loan portfolio. See Note 4—Loans and Allowance for Loan Losses for further detail. Troubled Debt Restructurings (“TDRs”) The Bank designates loan modifications as TDRs when, for economic or legal reasons related to the borrower’s financial difficulties, it grants a concession to the borrower that it would not otherwise consider. Loans on nonaccrual status at the date of modification are initially classified as nonaccrual TDRs. Loans on accruing status at the date of modification are initially classified as accruing TDRs at the date of modification, if the note is reasonably assured of repayment and performance is in accordance with its modified terms. Such loans may be designated as nonaccrual loans subsequent to the modification date if reasonable doubt exists as to the collection of interest or principal under the restructuring agreement. Nonaccrual TDRs are returned to accruing status when there is economic substance to the restructuring, there is well documented credit evaluation of the borrower’s financial condition, the remaining balance is reasonably assured of repayment in accordance with its modified terms, and the borrower has demonstrated sustained repayment performance in accordance with the modified terms for a reasonable period of time (generally a minimum of six months). Allowance for Loan Losses The allowance for loan losses is established for estimated loan losses through a provision for loan losses charged to earnings. Loan losses are charged against the allowance when management believes that the collectability of the principal is unlikely. Subsequent recoveries, if any, are credited to the allowance. The allowance for loan losses is evaluated on a regular basis by management and is based upon management’s periodic review of the collectability of the loans in light of historical experience, the nature and volume of the loan portfolio, adverse situations that may affect the borrower’s ability to repay, estimated value of any underlying collateral, and prevailing economic conditions. This evaluation is inherently subjective, as it requires estimates that are susceptible to significant revision as more information becomes available. The allowance consists of general and specific reserves. The general reserves are determined, for loans not identified as impaired, by applying loss percentages to the portfolio that are based on historical loss experience and management’s evaluation and “risk grading” of the loan portfolio. Additionally, the general economic and business conditions affecting key lending areas, credit quality trends, collateral values, loan volumes and concentrations, seasoning of the loan portfolio, the findings of internal and external credit reviews and results from external bank regulatory examinations are included in this evaluation. The specific reserves are determined, for impaired loans, on a loan‑by‑loan basis based on management’s evaluation of the Company’s exposure for each credit, given the current payment status of the loan and the value of any underlying collateral. Management evaluates nonaccrual loans and TDRs regardless of accrual status to determine whether or not they are impaired. For such loans that are classified as impaired, an allowance is established when the discounted cash flows (or collateral value or observable market price) of the impaired loan is lower than the carrying value of that loan. The Company requires updated appraisals on at least an annual basis for impaired loans that are collateral dependent. Generally, the need for specific reserve is evaluated on impaired loans, and once a specific reserve is established for a loan, a charge off of that amount occurs in the quarter subsequent to the establishment of the specific reserve. Although management uses available information to estimate losses on loans, because of uncertainties associated with local, regional, and national economic conditions, collateral values, and future cash flows on impaired loans, and subjection of the model to the review of regulatory authorities, it is reasonably possible that a material change could occur in the allowance for loan losses in the near term. However, the amount of the change that is reasonably possible cannot be estimated. Other Real Estate Owned Other real estate owned (“OREO”), consisting of properties obtained through foreclosure or through a deed in lieu of foreclosure in satisfaction of loans and property originally acquired for further branch expansion (formerly classified as premises and equipment), is reported at the lower of cost or fair value, determined on the basis of current valuations obtained principally from independent sources, adjusted for estimated selling costs. At the time of foreclosure or initial possession of collateral, any excess of the loan balance over the fair value of the real estate held as collateral is treated as a charge against the allowance for loan losses. Subsequent declines in the fair value of OREO below the new cost basis are recorded through valuation adjustments. Significant judgments and complex estimates are required in estimating the fair value of other real estate, and the period of time within which such estimates can be considered current is significantly shortened during periods of market volatility. In response to market conditions and other economic factors, management may utilize liquidation sales as part of its problem asset disposition strategy. As a result of the significant judgments required in estimating fair value and the variables involved in different methods of disposition, the net proceeds realized from sales transactions could differ significantly from the valuations used to determine the fair value of OREO. Management reviews the value of OREO each quarter and adjusts the values as appropriate. Revenue and expenses from OREO operations as well as gains or losses on sales and any subsequent adjustments to the value are recorded as OREO expense and loan related expense, a component of non‑interest expense. Business Combinations and Method of Accounting for Loans Acquired The Company accounts for its acquisitions under Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“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 because the fair value of the loans acquired incorporates assumptions regarding credit risk. Loans acquired are recorded at fair value in accordance with the fair value methodology prescribed in FASB ASC Topic 820, Fair Value Measurements and Disclosures . 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. Acquired credit‑impaired loans are accounted for under the accounting guidance for loans and debt securities acquired with deteriorated credit quality, found in FASB ASC Topic 310‑30, Receivables—Loans and Debt Securities Acquired with Deteriorated Credit Quality , and initially measured at fair value, which includes estimated future credit losses expected to be incurred over the life of the loans. Loans acquired in business combinations with evidence of credit deterioration since origination and for which it is probable that all contractually required payments will not be collected are considered to be credit impaired. Evidence of credit quality deterioration as of purchase dates may include information such as past‑due and nonaccrual status, borrower credit scores and recent loan to value percentages. The Company considers expected prepayments and estimates the amount and timing of expected principal, interest and other cash flows for each loan or pool of loans meeting the criteria above, and determines the excess of the loan’s scheduled contractual principal and contractual interest payments over all cash flows expected to be collected at acquisition as an amount that should not be accreted (nonaccretable difference). The remaining amount, representing the excess of the loan’s or pool’s cash flows expected to be collected over the fair value for the loan or pool of loans, is accreted into interest income over the remaining life of the loan or pool (accretable yield). In accordance with FASB ASC Topic 310‑30, the Company aggregated acquired loans that have common risk characteristics into pools within the following loan categories: commercial real estate, commercial real estate—construction and development, residential real estate, consumer, commercial and industrial, and single pay. Single pay loans consist of those instruments for which repayment of principal and interest is expected at maturity. Loans acquired through business combinations that do not meet the specific criteria of FASB ASC Topic 310‑30, but for which a discount is attributable at least in part to credit quality are generally accounted for under this guidance. As a result, related discounts are recognized subsequently through accretion based on the expected cash flow of the acquired loans. Certain acquired loans, such as lines of credit (consumer and commercial) and loans for which there was no discount attributable to credit are accounted for in accordance with FASB ASC Topic 310‑20, where the discount is accreted through earnings based on estimated cash flows over the estimated life of the loan. Subsequent to the acquisition date, increases in cash flows expected to be received in excess of the Company’s initial estimates are reclassified from nonaccretable difference to accretable yield and are accreted into interest income on a level‑yield basis over the remaining life of the loan. Decreases in cash flows expected to be collected are recognized as impairment through the provision for loan losses. Probable and significant increases in cash flows (in a loan pool where an allowance for acquired loan losses was previously recorded) reduces the remaining allowance for acquired loan losses before recalculating the amount of accretable yield percentage for the loan pool in accordance with ASC 310-30. FDIC Indemnification Asset On June 23, 2016, the Bank entered into an early termination agreement with the FDIC with respect to all of its outstanding loss share agreements. All assets previously classified as covered became uncovered, and the Bank will now recognize the full amount of future charge-offs, recoveries, gains, losses, and expenses related to these previously covered assets, as the FDIC will no longer share in these amounts. With the termination of the loss share agreements, the Company no longer carries a FDIC indemnification asset. Related to periods before the termination of the loss share agreements, the FDIC indemnification asset was measured separately from the related covered asset as it was not contractually embedded in the assets and was not transferable with the assets had the Company chosen to dispose of them. Fair value was estimated at the acquisition date using projected cash flows related to the loss sharing agreements based on the expected reimbursements for losses and the applicable loss sharing percentages. These expected reimbursements did not include reimbursable amounts related to future covered expenditures. These cash flows were discounted to reflect the uncertainty of the timing and receipt of the loss sharing reimbursement from the FDIC. The Company offset any recorded provision for loan losses related to acquired‑covered loans by recording an increase in the FDIC indemnification asset by the increase in expected cash flow, which was the result of a decrease in expected cash flow of acquired loans. An increase in cash flows on acquired loans resulted in a decrease in cash flows on the FDIC indemnification asset, which was recognized in the future as negative accretion through non‑interest income over the shorter of the remaining life of the FDIC indemnification asset or the underlying loans. The Company incurred expenses related to the assets indemnified by the FDIC, and pursuant to the loss share agreement certain costs were reimbursable by the FDIC. These costs were included in monthly and quarterly claims made by the Company. The estimates of reimbursements were netted against these covered expenses in the income statement. Premises and Equipment Land is carried at cost. Office equipment, furnishings, and buildings are carried at cost less accumulated depreciation computed principally on the declining‑balance and straight‑line methods over the estimated useful lives of the assets. Leasehold improvements are amortized on the straight‑line method over the shorter of the estimated useful lives of the improvements or the terms of the related leases including lease renewals only when the Company is reasonably assured of the aggregate term of the lease. Additions to premises and equipment and major replacements are added to the accounts at cost. Maintenance and repairs and minor replacements are charged to expense when incurred. Gains and losses on routine dispositions are reflected in current operations. Intangible Assets Intangible assets consist of goodwill, core deposit intangibles, client list intangibles, and noncompetition agreement (“noncompete”) intangibles that result from the acquisition of other banks or branches from other financial institutions. Core deposit intangibles represent the value of long‑term deposit relationships acquired in these transactions. Client list intangibles represent the value of long‑term client relationships for the wealth and trust management business. Noncompete intangibles represent the value of key personnel relative to various competitive factors such as ability to compete, willingness or likelihood to compete, and feasibility based upon the competitive environment, and what the Bank could lose from competition. Goodwill represents the excess of the purchase price over the sum of the estimated fair values of the tangible and identifiable intangible assets acquired less the estimated fair value of the liabilities assumed. Goodwill has an indefinite useful life and is evaluated for impairment annually or more frequently if events and circumstances indicate that the asset might be impaired. An impairment loss is recognized to the extent that the carrying amount exceeds the asset’s fair value. The goodwill impairment analysis is a two‑step test. The first step, used to identify potential impairment, involves comparing the reporting unit’s estimated fair value to its carrying value, including goodwill. If the estimated fair value of a reporting unit exceeds its carrying value, goodwill assigned to that reporting unit is considered not to be impaired. If the carrying value exceeds estimated fair value, there is an indication of potential impairment and the second step is performed to measure the amount of impairment of goodwill assigned to that reporting unit. If required, the second step involves calculating an implied fair value of goodwill for each reporting unit for which the first step indicated impairment. The implied fair value of goodwill is determined in a manner similar to the amount of goodwill calculated in a business combination, by measuring the excess of the estimated fair value of the reporting unit, as determined in the first step, over the aggregate estimated fair values of the individual assets, liabilities and identifiable intangibles as if the reporting unit was being acquired in a business combination. If the implied fair value of goodwill exceeds the carrying value of goodwill assigned to the reporting unit, there is no impairment. If the carrying value of goodwill assigned to a reporting unit exceeds the implied fair value of the goodwill, an impairment charge is recorded for the excess. An impairment loss cannot exceed the carrying value of goodwill assigned to a reporting unit, and the loss establishes a new basis in the goodwill. Subsequent reversal of goodwill impairment losses is not permitted. Management has determined that the Company has two reporting units. The Company evaluated the carrying value of goodwill as of April 30, 2017, its annual test date, and determined that no impairment charge was necessary. Additionally, should the Company’s future earnings and cash flows decline and/or discount rates increase, an impairment charge to goodwill and other intangible assets may be required. Core deposit intangibles, included in core deposit and other intangibles, are amortized over the estimated useful lives of the deposit accounts acquired (generally 10 to 13 years) on either (1) the straight‑line method or (2) an accelerated basis method which reasonably approximates the anticipated benefit stream from the accounts. The estimated useful lives are periodically reviewed for reasonableness. Noncompete intangibles, included in core deposit and other intangibles are amortized over the life of the underlying noncompete agreements (generally 2 to 3 years) on the straight‑line method. The estimated useful lives are periodically reviewed for reasonableness. Client list intangibles, included in core deposit and other intangibles, are amortized over the estimated useful lives of the client lists acquired (generally 15 years) on the straight‑line method. The estimated useful lives are periodically reviewed for reasonableness. Mortgage Servicing Rights The Company has a mortgage loan servicing portfolio with related mortgage servicing rights. Mortgage servicing rights (“MSRs”) represent the present value of the future net servicing fees from servicing mortgage loans. Servicing assets and servicing liabilities must be initially measured at fair value, if practicable. For subsequent measurements, an entity can choose to measure servicing assets and liabilities either based on fair value or lower of cost or market. The Company uses the fair value measurement option for MSRs. The methodology used to determine the fair value of MSRs is subjective and requires the development of a number of assumptions, including anticipated prepayments of loan principal. Fair value is determined by estimating the present value of the asset’s future cash flows utilizing estimated market‑based prepayment rates and discount rates, interest rates and other economic factors and assumptions validated through comparison to trade informati

Mergers and Acquisitions

Mergers and Acquisitions	12 Months Ended
	Dec. 31, 2017
Mergers and Acquisitions
Mergers and Acquisitions	Note 2—Mergers and Acquisitions The following are business combinations which have occurred over the past three years: · Park Sterling Corporation (“PSC” or “Park”) – November 30, 2017 – Whole bank acquisition · Southeastern Bank Financial Corporation (“SBFC” or “Southeastern” – January 3, 2017 – Whole bank acquisition · Bank of America, N.A. (“BOA”) – August 21, 2015 – Branch acquisition which resulted in the purchase of 12 South Carolina branch locations and one Georgia branch location from BOA Park Sterling Corporation On November 30, 2017, SSB acquired all of the outstanding common stock of Park Sterling Corporation (“PSC”), of Charlotte, North Carolina, the bank holding company for Park Sterling Bank (“PSB”), in a stock transaction. PSC common shareholders received 0.14 shares of the Company’s common stock in exchange for each share of PSC stock resulting in the Company issuing 7,480,343 shares of its common stock. In total, the purchase price for PSC was $693.0 million including the value of “in the money” outstanding stock options totaling $4.3 million. The PSC transaction was accounted for using the acquisition method of accounting and, accordingly, assets acquired, liabilities assumed and consideration exchanged were recorded at estimated fair value on the acquisition date. Fair values are preliminary and subject to refinement for up to a year after the closing date of the acquisition. Initial As Recorded Fair Value As Recorded by (Dollars in thousands) by Park Adjustments the Company Assets Cash and cash equivalents $ 116,454 $ — $ 116,454 Investment securities 461,261 1,444 (a) 462,705 Loans held for sale 2,200 68,686 (b) 70,886 Loans, net of allowance and mark 2,346,612 (95,878) (c) 2,250,734 Premises and equipment 61,059 (4,882) (d) 56,177 Intangible assets 73,090 (46,915) (e) 26,175 OREO and repossessed assets 2,549 (429) (f) 2,120 Bank owned life insurance 72,703 — 72,703 Deferred tax asset 17,963 11,596 (g) 29,559 Other assets 21,595 (476) (h) 21,119 Total assets $ 3,175,486 $ (66,854) $ 3,108,632 Liabilities Deposits: Noninterest-bearing $ 561,874 $ — $ 561,874 Interest-bearing 1,886,810 2,692 (i) 1,889,502 Total deposits 2,448,684 2,692 2,451,376 Federal funds purchased and securities sold under agreements to repurchase — — — Other borrowings 329,249 11,689 (j) 340,938 Other liabilities 24,179 2,131 (k) 26,310 Total liabilities 2,802,112 16,512 2,818,624 Net identifiable assets acquired over (under) liabilities assumed 373,374 (83,366) 290,008 Goodwill — 402,951 402,951 Net assets acquired over liabilities assumed $ 373,374 $ 319,585 $ 692,959 Consideration: South State Corporation common shares issued 7,480,343 Purchase price per share of the Company's common stock $ 92.05 Company common stock issued ($688,566) and cash exchanged for fractional shares ($88) $ 688,654 Cash paid for stock option redemptions 4,305 Fair value of total consideration transferred $ 692,959 Explanation of fair value adjustments (a)—Adjustment reflects marking the securities portfolio to fair value as of the acquisition date. (b)—Adjustment reflects a reclass of $68.7 million by SSB of Shared National Credits (loans) from loans held for investment to loans held for sale. (c)—Adjustment reflects the fair value adjustments (discount) of $60.9 million based on the Company’s evaluation of the acquired loan portfolio. This amount excludes the allowance for loan losses (“ALLL”) and fair value adjustment (discount) of $12.5 million and $21.3 million, respectively, recorded by PSC and is net of the $68.7 million reclass related to the Shared National Credits noted in (b). (d)—Adjustment reflects the fair value adjustments based on the Company’s evaluation of the acquired premises and equipment. (e)—Adjustment reflects the recording of a 1.66% Core Deposit Intangible (“CDI”) on the acquired deposit accounts that totaled $26.2 million offset by a write-off of $73.1 million of existing goodwill and CDI acquired from PSC. (f)—Adjustment reflects the fair value adjustments to other real estate owned (“OREO”) based on the Company’s evaluation of the acquired OREO portfolio. (g)—Adjustment to record deferred tax asset related to the fair value adjustments and an adjustment from the PSC tax rate to the SSB tax rate. (h)—Adjustment reflects the write-off of accrued interest receivable and along with certain prepaid expenses. (i)—Adjustment reflects the premium for fixed maturity time deposits of $2.95 million offset by the write-off of existing fair value marks of $253,000 acquired from PSC. (j)—Adjustment reflects the fair value adjustment (discount) of $2.4 million on PSC’s Trust Preferred Securities offset by the write-off of the existing PSC discount on its senior debt and TRUPs of $14.0 million. (k)—Adjustment reflects the fair value adjustments to employee benefit plans of $1.5 million along with other adjustments of miscellaneous liabilities. Southeastern Bank Financial Corporation On January 3, 2017, SSB acquired all of the outstanding common stock of Southeastern Bank financial Corporation (“SBFC”), of Augusta, Georgia, the bank holding company for Georgia Bank & Trust Company of Augusta (“GB&T”), in a stock transaction. SBFC common shareholders received 0.7307 shares of the Company’s common stock in exchange for each share of SBFC stock resulting in the Company issuing 4,978,338 shares of its common stock. In total, the purchase price for SBFC was $435.1 million including the value of “in the money” outstanding stock options totaling $490,000. The SBFC transaction was accounted for using the acquisition method of accounting and, accordingly, assets acquired, liabilities assumed and consideration exchanged were recorded at estimated fair value on the acquisition date. Initial Subsequent As Recorded Fair Value Fair Value As Recorded by (Dollars in thousands) by SBFC Adjustments Adjustments the Company Assets Cash and cash equivalents $ 72,043 $ — $ — $ 72,043 Investment securities 591,824 (1,770) (a) — 590,054 Loans held for sale 13,652 — — 13,652 Loans, net of allowance and mark 1,060,618 (10,668) (b) — 1,049,950 Premises and equipment 25,419 (2,212) (c) 870 (c) 24,077 Intangible assets 140 17,980 (d) — 18,120 OREO and repossessed assets 580 (30) (e) (100) (e) 450 Bank owned life insurance 44,513 — — 44,513 Deferred tax asset 16,247 (687) (f) 515 (f) 16,075 Other assets 7,545 (482) (g) — 7,063 Total assets $ 1,832,581 $ 2,131 $ 1,285 $ 1,835,997 Liabilities Deposits: Noninterest-bearing $ 262,967 $ — $ — $ 262,967 Interest-bearing 1,257,953 — — 1,257,953 Total deposits 1,520,920 — — 1,520,920 Federal funds purchased and securities sold under agreements to repurchase 1,014 — — 1,014 Other borrowings 110,620 (1,120) (h) — 109,500 Other liabilities 19,980 5,553 (i) 2,210 (i) 27,743 Total liabilities 1,652,534 4,433 2,210 1,659,177 Net identifiable assets acquired over (under) liabilities assumed 180,047 (2,302) (925) 176,820 Goodwill — 257,370 925 258,295 Net assets acquired over liabilities assumed $ 180,047 $ 255,068 $ — $ 435,115 Consideration: South State Corporation common shares issued 4,978,338 Purchase price per share of the Company's common stock $ 87.30 Company common stock issued ($434,609) and cash exchanged for fractional shares ($16) $ 434,625 Cash paid for stock option redemptions 490 Fair value of total consideration transferred $ 435,115 Explanation of fair value adjustments (a)—Adjustment reflects marking the securities portfolio to fair value as of the acquisition date. (b)—Adjustment reflects the fair value adjustments of $30.7 million based on the Company’s evaluation of the acquired loan portfolio and excludes the allowance for loan losses (“ALLL”) of $20.1 million recorded by SBFC. (c)—Adjustment reflects the fair value adjustments based on the Company’s evaluation of the acquired premises and equipment. (d)—Adjustment reflects the recording of the core deposit intangible on the acquired deposit accounts that totaled $18.1 million. (e)—Adjustment reflects the fair value adjustments to other real estate owned (“OREO”) and repossessed assets based on the Company’s evaluation of the acquired OREO and repossessed assets portfolio. (f)—Adjustment to record deferred tax asset related to the fair value adjustments. (g)—Adjustment reflects uncollectible portion of accrued interest receivable and loan fees receivable along with the write-off of certain prepaid expenses. (h)—Adjustment reflects the fair value adjustments based on the Company’s evaluation of other borrowings of Trust Preferred Securities with a discount of $2.1 million, netted with premium on certain Federal Home Loan Bank (“FHLB “) advances of $1.0 million. (i)—Adjustment reflects the fair value adjustments to employee benefit plans of $8.3 million netted against an adjustment of other miscellaneous liabilities of $496,000. Comparative and Pro Forma Financial Information for Acquisitions in 2017 The adjusted results of the Company for the year ended December 31, 2017, include the adjusted results of the acquired assets and assumed liabilities for the 362 days subsequent to the acquisition date of January 3, 2017 related to the SBFC acquisition and for 31 days subsequent to the acquisition date of November 30, 2017 related to the PSC acquisition. Merger-related charges of $44.5 million are recorded in the consolidated statement of income and include incremental costs related to closing of the acquisitions, including legal, accounting and auditing, investment banker cost, termination of certain employment related contracts, travel costs, printing, supplies and other costs. The following table discloses the impact of the mergers (excluding the impact of merger-related expenses and of the revaluation of the net deferred tax asset due to the Tax Reform Act) with SBFC since the acquisition on January 3, 2017 through December 31, 2017 and with PSC since the acquisition on November 30, 2017 through December 31, 2017. The table also presents certain pro forma information as if SBFC and PSC had been acquired on January 1, 2017 and January, 1 2016. These results combine the historical results of SBFC and PSC in the Company’s consolidated statement of income and, while certain adjustments were made for the estimated impact of certain fair value adjustments and other acquisition-related activity, they are not indicative of what would have occurred had the acquisition taken place on January 1, 2017 or January 1, 2016. Merger-related costs of $50.0 million from the SBFC and PSC acquisitions were incurred during the year ended December 31, 2017, and were excluded from pro forma information below. In addition, no adjustments have been made to the pro formas to eliminate the provision for loan losses for the years ended December 31, 2017 and 2016 of SBFC and PSC in the amount of $325,000 and $3.5 million, respectively. No adjustments have been made to reduce the impact of any OREO write downs, investment securities sold or repayment of borrowings recognized by SBFC and PSC in either the years ended December 31, 2017 or 2016. The pro forma net adjusted income available to the common shareholder for December 31, 2017 includes the Company’s $26.6 million of income tax expense recorded as a result of the revaluation of the Company’s net deferred tax asset in connection with the Tax Reform Act signed into law during 2017. Expenses related to systems conversions and other costs of integration are expected to be recorded during 2018 for the PSC merger. The Company expects to achieve further operating cost savings and other business synergies as a result of the acquisitions which are not reflected in the pro forma amounts below: SBFC PSC Actual since Actual since Acquisition Acquisition Pro Forma Pro Forma (January 3, 2017 through (November 30, 2017 through Year Ended Year Ended (Dollars in thousands) December 31, 2017) December 31, 2017) December 31, 2017 December 31, 2016 Total revenues (net interest income plus noninterest income) $ 67,823 $ 14,052 $ 690,716 $ 684,532 Net adjusted income available to the common shareholder $ 25,790 $ 4,829 $ 146,821 $ 164,479 BOA Branch Acquisition On August 21, 2015, the Bank completed its acquisition from BOA of 12 South Carolina branches located in Florence, Greenwood, Orangeburg, Sumter, Newberry, Batesburg-Leesville, Abbeville and Hartsville, South Carolina, and one Georgia branch located in Hartwell, Georgia. Under the terms of the Purchase and Assumption Agreement dated April 22, 2015, the Bank paid a deposit premium of $25.0 million, equal to 5.5% of the average daily deposits for the 30- day period immediately prior to the acquisition date. In addition, the Bank acquired approximately $3.1 million in loans and $4.1 million in premises and equipment. This transaction was fully taxable and there were no deferred tax assets or liabilities recorded as a result of this transaction. The branch acquisition was accounted for using the acquisition method of accounting and, accordingly, assets acquired, liabilities assumed and consideration exchanged were recorded at estimated fair value on the acquisition date. The following table presents the assets acquired and liabilities assumed as of August 21, 2015 and their initial fair value estimates: As Recorded Fair Value As Recorded by (Dollars in thousands) by BOA Adjustments the Company Assets Cash and cash equivalents $ 428,567 $ — $ 428,567 Loans 3,445 (295) (a) 3,150 Premises and equipment 6,267 (2,138) (b) 4,129 Intangible assets — 6,800 (c) 6,800 Other assets 66 — 66 Total assets $ 438,345 $ 4,367 $ 442,712 Liabilities Deposits: Noninterest-bearing $ 97,440 $ — $ 97,440 Interest-bearing 340,849 — 340,849 Total deposits 438,289 — 438,289 Other liabilities 56 — 56 Total liabilities 438,345 — 438,345 Net identifiable assets acquired over (under) liabilities assumed — 4,367 4,367 Goodwill — 20,652 20,652 Net assets acquired over (under) liabilities assumed $ — $ 25,019 $ 25,019 Consideration: Cash paid as deposit premium $ 25,019 Fair value of total consideration transferred $ 25,019 Explanation of fair value adjustments (a)—Adjustment reflects the fair value adjustments based on the Company’s evaluation of the acquired loan portfolio. (b)—Adjustment reflects the fair value adjustments based on the Company’s evaluation of the acquired premises and equipment. (c)—Adjustment reflects the recording of the core deposit intangible on the acquired core deposit accounts.

Investment Securities

Investment Securities	12 Months Ended
	Dec. 31, 2017
Investment Securities
Investment Securities	Note 3—Investment Securities The following is the amortized cost and fair value of investment securities held to maturity: Gross Gross Amortized Unrealized Unrealized Fair (Dollars in thousands) Cost Gains Losses Value December 31, 2017: State and municipal obligations $ 2,529 $ 27 $ — $ 2,556 December 31, 2016: State and municipal obligations $ 6,094 $ 156 $ — $ 6,250 The following is the amortized cost and fair value of investment securities available for sale: Gross Gross Amortized Unrealized Unrealized Fair (Dollars in thousands) Cost Gains Losses Value December 31, 2017: Government-sponsored entities debt* $ 86,535 $ 51 $ (1,077) $ 85,509 State and municipal obligations 216,812 3,749 (124) 220,437 Mortgage-backed securities** 1,350,200 2,103 (11,616) 1,340,687 Corporate securities 4,077 — — 4,077 $ 1,657,624 $ 5,903 $ (12,817) $ 1,650,710 December 31, 2016: Government-sponsored entities debt* $ 85,488 $ — $ (846) $ 84,642 State and municipal obligations 105,303 2,289 (190) 107,402 Mortgage-backed securities** 807,717 3,085 (7,225) 803,577 Corporate securities 3,658 473 (347) 3,784 $ 1,002,166 $ 5,847 $ (8,608) $ 999,405 * The Company’s government-sponsored entities holdings are comprised of debt securities offered by Federal Home Loan Mortgage Corporation (“FHLMC”) or Freddie Mac, Federal National Mortgage Association (“FNMA”) or Fannie Mae, FHLB, and Federal Farm Credit Banks (“FFCB”). Also included in the Company’s government-sponsored entities are debt securities offered by the Small Business Administration (“SBA”), which have the full faith and credit backing of the United States Government. ** All of the mortgage-backed securities are issued by government-sponsored entities; there are no private-label holdings. The following is the amortized cost and fair value of other investment securities: Gross Gross Amortized Unrealized Unrealized Fair (Dollars in thousands) Cost Gains Losses Value December 31, 2017: Federal Home Loan Bank stock $ 16,967 $ — $ — $ 16,967 Investment in unconsolidated subsidiaries 3,563 — — 3,563 $ 20,530 $ — $ — $ 20,530 December 31, 2016: Federal Home Loan Bank stock $ 7,840 $ — $ — $ 7,840 Investment in unconsolidated subsidiaries 1,642 — — 1,642 $ 9,482 $ — $ — $ 9,482 The Company has determined that the investment in Federal Home Loan Bank stock is not other than temporarily impaired as of December 31, 2017 and ultimate recoverability of the par value of these investments is probable. The amortized cost and fair value of debt and equity securities at December 31, 2017 by contractual maturity are detailed below. Expected maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without prepayment penalties. Equity securities have no set maturity dates and are classified as “Due after ten years”. Securities Securities Held to Maturity Available for Sale Amortized Fair Amortized Fair (Dollars in thousands) Cost Value Cost Value Due in one year or less $ — $ — $ 3,143 $ 3,143 Due after one year through five years 655 661 101,866 101,509 Due after five years through ten years 1,874 1,895 369,235 369,038 Due after ten years — — 1,183,380 1,177,020 $ 2,529 $ 2,556 $ 1,657,624 $ 1,650,710 The following table summarizes information with respect to sales of available‑for‑sale and held-to-maturity securities: Year Ended December 31, (Dollars in thousands) 2017 2016 2015 Securities Held to Maturity: Sale proceeds $ — $ — $ — Gross realized gains $ — $ — $ — Gross realized losses — — — Net realized loss $ — $ — $ — Securities Available for Sale: Sale proceeds $ 374,938 $ 137 $ — Gross realized gains $ 1,832 $ 122 $ — Gross realized losses (411) — — Net realized gain $ 1,421 $ 122 $ — The Company had 223 securities with gross unrealized losses at December 31, 2017. Information pertaining to securities with gross unrealized losses at December 31, 2017 and 2016, aggregated by investment category and length of time that individual securities have been in a continuous loss position follows: Less Than Twelve Months Twelve Months or More Gross Gross Unrealized Fair Unrealized Fair (Dollars in thousands) Losses Value Losses Value December 31, 2017: Securities Available for Sale Government-sponsored entities debt $ 403 $ 27,442 $ 674 $ 52,324 State and municipal obligations 124 17,400 — — Mortgage-backed securities 4,493 610,051 7,123 322,258 Corporate securities — — — — $ 5,020 $ 654,893 $ 7,797 $ 374,582 December 31, 2016: Securities Available for Sale Government-sponsored entities debt $ 846 $ 84,642 $ — $ — State and municipal obligations 190 11,506 — — Mortgage-backed securities 7,148 592,228 77 2,058 Corporate securities — — 347 1,395 $ 8,184 $ 688,376 $ 424 $ 3,453 Management evaluates securities for other-than-temporary impairment (“OTTI”) on at least a quarterly basis, and more frequently when economic or market concerns warrant such evaluation. Consideration is given to (1) the financial condition and near-term prospects of the issuer, (2) the outlook for receiving the contractual cash flows of the investments, (3) the length of time and the extent to which the fair value has been less than cost, (4) the intent and ability of the Company to retain its investment in the issuer for a period of time sufficient to allow for any anticipated recovery in fair value or for a debt security whether it is more-likely-than-not that the Company will be required to sell the debt security prior to recovering its fair value, and (5) the anticipated outlook for changes in the general level of interest rates. As part of the Company’s evaluation of its intent and ability to hold investments for a period of time sufficient to allow for any anticipated recovery in the market, the Company considers its investment strategy, cash flow needs, liquidity position, capital adequacy and interest rate risk position. The unrealized loss position of the debt securities continued to increase during 2017 from the unrealized loss position in 2016. This change was primarily related to the mortgage-backed securities category, and was the result of the increase in interest rates during the year. In analyzing an issuer’s financial condition, management considers whether the securities are issued by the federal government or its agencies, whether downgrades by bond rating agencies have occurred, the results of reviews of the issuer’s financial condition, and the issuer’s anticipated ability to pay the contractual cash flows of the investments. The Company does not currently intend to sell the securities within the portfolio and it is not more-likely-than-not that the Company will be required to sell the debt securities; therefore, management does not consider these investments to be other-than-temporarily impaired at December 31, 2017. With respect to equity securities, the Company sold all of its marketable equity securities during the third and fourth quarters of 2017. The Company did record an OTTI charge of $753,000 related to two equity securities during the third quarter of 2017. This charge was recorded due to the fact that management made the decision to sell the two securities in the fourth quarter of 2017 and therefore, no longer had the intent to hold the investments for a period of time sufficient to allow for any anticipated recovery. Management continues to monitor all of its securities with a high degree of scrutiny. There can be no assurance that the Company will not conclude in future periods that conditions existing at that time indicate some or all of these securities may be sold or are other than temporarily impaired, which would require a charge to earnings in such periods. At December 31, 2017 and 2016, investment securities with a carrying value of $766.0 million and $295.2 million, respectively, were pledged to secure public funds deposits and for other purposes required and permitted by law. At December 31, 2017 and 2016, the carrying amount of the securities pledged to collateralize repurchase agreements was $211.1 million and $238.3 million, respectively.

Loans and Allowance for Loan Lo

Loans and Allowance for Loan Losses	12 Months Ended
	Dec. 31, 2017
Loans and Allowance for Loan Losses
Loans and Allowance for Loan Losses	Note 4 - Loans and Allowance for Loan Losses The following is a summary of non‑acquired loans: December 31, (Dollars in thousands) 2017 2016 Non-acquired loans: Commercial non-owner occupied real estate: Construction and land development $ 830,875 $ 580,464 Commercial non-owner occupied 1,008,893 714,715 Total commercial non-owner occupied real estate 1,839,768 1,295,179 Consumer real estate: Consumer owner occupied 1,530,260 1,197,621 Home equity loans 437,642 383,218 Total consumer real estate 1,967,902 1,580,839 Commercial owner occupied real estate 1,262,776 1,177,745 Commercial and industrial 815,187 671,398 Other income producing property 193,847 178,238 Consumer 378,985 324,238 Other loans 33,690 13,404 Total non-acquired loans 6,492,155 5,241,041 Less allowance for loan losses (43,448) (36,960) Non-acquired loans, net $ 6,448,707 $ 5,204,081 The above table includes deferred fees, net of deferred costs, totaling $466,000 and $341,000 at December 31, 2017 and 2016, respectively. The following is a summary of acquired non‑credit impaired loans accounted for under FASB ASC Topic 310‑20, net of the related discount: December 31, (Dollars in thousands) 2017 2016 FASB ASC Topic 310-20 acquired loans: Commercial non-owner occupied real estate: Construction and land development $ 403,357 $ 10,090 Commercial non-owner occupied 817,166 34,628 Total commercial non-owner occupied real estate 1,220,523 44,718 Consumer real estate: Consumer owner occupied 710,611 408,270 Home equity loans 320,591 160,879 Total consumer real estate 1,031,202 569,149 Commercial owner occupied real estate 521,818 27,195 Commercial and industrial 398,696 13,641 Other income producing property 196,669 39,342 Consumer 137,710 142,654 Other 1,289 — Total FASB ASC Topic 310-20 acquired loans $ 3,507,907 $ 836,699 In accordance with FASB ASC Topic 310‑30, the Company aggregated acquired loans that have common risk characteristics into pools of loan categories as described in the table below. The following is a summary of acquired credit impaired loans accounted for under FASB ASC Topic 310‑30 (identified as credit impaired at the time of acquisition), net of related discount: December 31, (Dollars in thousands) 2017 2016 FASB ASC Topic 310-30 acquired loans: Commercial real estate $ 234,595 $ 218,821 Commercial real estate—construction and development 49,649 44,373 Residential real estate 260,787 258,100 Consumer 51,453 59,300 Commercial and industrial 26,946 25,347 Total FASB ASC Topic 310-30 acquired loans 623,430 605,941 Less allowance for loan losses (4,627) (3,395) FASB ASC Topic 310-30 acquired loans, net $ 618,803 $ 602,546 Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of FASB ASC Topic 310-30 acquired loans impaired at the acquisition date for Park Sterling Corporation (November 30, 2017) are as follows: November 30, 2017 Loans Impaired (Dollars in thousands) at Acquisition Contractual principal and interest $ 92,600 Non-accretable difference (12,840) Cash flows expected to be collected 79,760 Accretable difference (8,829) Carrying value $ 70,931 The table above excludes $2.2 billion ($2.3 billion in contractual principal less a $50.1 million fair value adjustment) in acquired loans at fair value that were identified as either performing with no discount related to the credit or as revolving lines of credit (commercial or consumer) as of the acquisition date of Park and will be accounted for under FASB ASC Topic 310-20. Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of FASB ASC Topic 310-30 acquired loans impaired at the acquisition date for SBFC (January 3, 2017) are as follows: January 3, 2017 Loans Impaired (Dollars in thousands) at Acquisition Contractual principal and interest $ 73,365 Non-accretable difference (12,912) Cash flows expected to be collected 60,453 Accretable difference (4,603) Carrying value $ 55,850 The table above excludes $991.5 million ($1.01 billion in contractual principal less a $18.8 million fair value adjustment) in acquired loans at fair value that were identified as either performing with no discount related to the credit or as revolving lines of credit (commercial or consumer) as of the acquisition date of Southeastern and will be accounted for under FASB ASC Topic 310-20. Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting carrying values of total acquired credit impaired loans as of December 31, 2017 and 2016 are as follows: December 31, (Dollars in thousands) 2017 2016 Contractual principal and interest $ 795,850 $ 778,822 Non-accretable difference (39,324) (17,502) Cash flows expected to be collected 756,526 761,320 Accretable yield (133,096) (155,379) Carrying value $ 623,430 $ 605,941 Allowance for acquired loan losses $ (4,627) $ (3,395) Income on acquired credit impaired loans that are not impaired at the acquisition date is recognized in the same manner as loans impaired at the acquisition date. A portion of the fair value discount on acquired non‑impaired loans has been ascribed as an accretable yield that is accreted into interest income over the estimated remaining life of the loans. The remaining nonaccretable difference represents cash flows not expected to be collected. The following are changes in the carrying value of acquired credit impaired loans: Year Ended December 31, (Dollars in thousands) 2017 2016 2015 Balance at beginning of period $ 602,546 $ 733,870 $ 919,402 Fair value of acquired loans 126,781 — — Net reductions for payments, foreclosures, and accretion (109,292) (131,635) (189,191) Change in the allowance for loan losses on acquired loans (1,232) 311 3,659 Balance at end of period, net of allowance for loan losses on acquired loans $ 618,803 $ 602,546 $ 733,870 The following are changes in the carrying amount of accretable yield for acquired credit impaired loans: Year Ended December 31, (Dollars in thousands) 2017 2016 2015 Balance at beginning of period $ 155,379 $ 201,538 $ 306,826 Addition from the SBFC acquisition 4,910 — — Addition from the PSC acquisition 8,829 — — Accretion (57,434) (72,757) (97,847) Reclass of nonaccretable difference due to improvement in expected cash flows 21,890 25,808 61,985 Other changes, net (478) 790 (69,426) Balance at end of period $ 133,096 $ 155,379 $ 201,538 In 2017, the accretable yield balance declined by $22.3 million as loan accretion (income) of $57.4 million was recognized. This was partially offset by improved expected cash flows of $21.9 million and by the additions from the SBFC and PSC acquisitions. As of December 31, 2017, the table above excludes $3.5 billion ($3.6 billion in contractual principal less a $65.4 million discount) in acquired loans which are accounted for under FASB ASC Topic 310-20. These loans were identified as either performing with no discount related to the credit or as a revolving lines of credit (commercial or consumer) at acquisition. As of December 31, 2016, the balance of these acquired loans totaled $836.7 million ($848.3 million in contractual principal less an $11.6 million remaining discount). Our loan loss policy adheres to U.S. GAAP as well as interagency guidance. The allowance for loan losses is based upon estimates made by management. We maintain an allowance for loan losses at a level that we believe is appropriate to cover estimated credit losses on individually evaluated loans that are determined to be impaired as well as estimated credit losses inherent in the remainder of our loan portfolio. Arriving at the allowance involves a high degree of management judgment and results in a range of estimated losses. We regularly evaluate the adequacy of the allowance through our internal risk rating system, outside credit review, and regulatory agency examinations to assess the quality of the loan portfolio and identify problem loans. The evaluation process also includes our analysis of current economic conditions, composition of the loan portfolio, past due and nonaccrual loans, concentrations of credit, lending policies and procedures, and historical loan loss experience. While management uses available information to recognize losses on loans, future additions to the allowance may be necessary based on, among other factors, changes in economic conditions in our markets. In addition, regulatory agencies, as an integral part of their examination process, periodically review our allowances for losses on loans. These agencies may require management to recognize additions to the allowances based on their judgments about information available to them at the time of their examination. Because of these and other factors, it is possible that the allowances for losses on loans may change. The provision for loan losses is charged to expense in an amount necessary to maintain the allowance at an appropriate level. The allowance for loan losses on non‑acquired loans consists of general and specific reserves. The general reserves are determined by applying loss percentages to the portfolio that are based on historical loss experience for each class of loans and management’s evaluation and “risk grading” of the loan portfolio. Additionally, the general economic and business conditions affecting key lending areas, credit quality trends, collateral values, loan volumes and concentrations, seasoning of the loan portfolio, the findings of internal and external credit reviews and results from external bank regulatory examinations are included in this evaluation. Currently, these adjustments are applied to the non‑acquired loan portfolio when estimating the level of reserve required. The specific reserves are determined on a loan‑by‑loan basis based on management’s evaluation of our exposure for each credit, given the current payment status of the loan and the value of any underlying collateral. These are loans classified by management as doubtful or substandard. For such loans that are also classified as impaired, an allowance is established when the discounted cash flows (or collateral value or observable market price) of the impaired loan is lower than the carrying value of that loan. Generally, the need for specific reserve is evaluated on impaired loans, and once a specific reserve is established for a loan, a charge off of that amount occurs in the quarter subsequent to the establishment of the specific reserve. Loans that are determined to be impaired are provided a specific reserve, if necessary, and are excluded from the calculation of the general reserves. Beginning with the FFHI acquisition, the Company segregated the loan portfolio into performing loans (“non‑credit impaired) and purchased credit impaired loans. The performing loans and revolving type loans are accounted for under FASB ASC 310‑20, with each loan being accounted for individually. The allowance for loan losses on these loans will be measured and recorded consistent with non‑acquired loans. The acquired credit impaired loans will follow the description in the next paragraph. In determining the acquisition date fair value of purchased loans, and in subsequent accounting, the Company generally aggregates purchased loans into pools of loans with common risk characteristics. Expected cash flows at the acquisition date in excess of the fair value of loans are recorded as interest income over the life of the loans using a level yield method if the timing and amount of the future cash flows of the pool is reasonably estimable. Subsequent to the acquisition date, increases in cash flows over those expected at the acquisition date are reclassified from the non‑accretable difference to accretable yield and recognized as interest income prospectively. Decreases in expected cash flows after the acquisition date are recognized by recording an allowance for loan losses. Management analyzes the acquired loan pools using various assessments of risk to determine an expected loss. The expected loss is derived based upon a loss given default based upon the collateral type and/or detailed review by loan officers and the probability of default that is determined based upon historical data at the loan level. All acquired loans managed by Special Asset Management are reviewed quarterly and assigned a loss given default. Acquired loans not managed by Special Asset Management are reviewed twice a year in a similar method to the Company’s originated portfolio of loans which follow review thresholds based on risk rating categories. In the fourth quarter of 2015, the Company modified its methodology to a more granular approach in determining loss given default on substandard loans with a net book balance between $100,000 and $500,000 by adjusting the loss given default to 90% of the most current collateral valuation based on appraised value. Substandard loans greater than $500,000 were individually assigned loss given defaults each quarter. Trends are reviewed in terms of accrual status, past due status, and weighted‑average grade of the loans within each of the accounting pools. In addition, the relationship between the change in the unpaid principal balance and change in the mark is assessed to correlate the directional consistency of the expected loss for each pool. Prior to the termination of our loss share agreements in June 2016, offsetting the impact of the provision established for acquired loans covered under FDIC loss share agreements, the receivable from the FDIC was adjusted to reflect the indemnified portion of the post‑acquisition exposure with a corresponding credit to the provision for loan losses. (For further discussion of the Company’s allowance for loan losses on acquired loans, see Note 1—Summary of Significant Accounting Policies and Note 2—Mergers and Acquisitions.) On June 23, 2016, the Bank entered into an early termination agreement with the FDIC with respect to all of its outstanding loss share agreements. The loss share agreements were entered into with the FDIC in 2009, 2010, 2011 and 2012 either by the Bank or by First Federal Bank, acquired by the Bank in July of 2013. As a result of the termination agreement, all assets previously classified as covered became uncovered effective June 23, 2016, and as a result the Bank will now recognize the full amount of future charge-offs, recoveries, gains, losses, and expenses related to these previously covered assets, as the FDIC will no longer share in these amounts. An aggregated analysis of the changes in allowance for loan losses is as follows: Non-acquired Acquired Acquired Credit (Dollars in thousands) Loans Impaired Loans Impaired Loans Total Year Ended December 31, 2017: Balance at beginning of period $ 36,960 $ — $ 3,395 $ 40,355 Loans charged-off (5,149) (1,630) — (6,779) Recoveries of loans previously charged off 2,953 477 — 3,430 Net charge-offs (2,196) (1,153) — (3,349) Provision for loan losses 8,684 1,153 2,053 11,890 Benefit attributable to FDIC loss share agreements — — — — Total provision for loan losses charged to operations 8,684 1,153 2,053 11,890 Provision for loan losses recorded through the FDIC loss share receivable — — — — Reduction due to loan removals — — (821) (821) Balance at end of period $ 43,448 $ — $ 4,627 $ 48,075 Year Ended December 31, 2016: Balance at beginning of period $ 34,090 $ — $ 3,706 $ 37,796 Loans charged-off (5,902) (987) — (6,889) Recoveries of loans previously charged off 3,233 318 — 3,551 Net charge-offs (2,669) (669) — (3,338) Provision for loan losses 5,539 669 588 6,796 Benefit attributable to FDIC loss share agreements — — 23 23 Total provision for loan losses charged to operations 5,539 669 611 6,819 Provision for loan losses recorded through the FDIC loss share receivable — — (23) (23) Reduction due to loan removals — — (899) (899) Balance at end of period $ 36,960 $ — $ 3,395 $ 40,355 Year Ended December 31, 2015: Balance at beginning of period $ 34,539 $ — $ 7,365 $ 41,904 Loans charged-off (6,180) (2,787) — (8,967) Recoveries of loans previously charged off 2,801 387 — 3,188 Net charge-offs (3,379) (2,400) — (5,779) Provision for loan losses 2,930 2,400 (252) 5,078 Benefit attributable to FDIC loss share agreements — — 786 786 Total provision for loan losses charged to operations 2,930 2,400 534 5,864 Provision for loan losses recorded through the FDIC loss share receivable — — (786) (786) Reduction due to loan removals — — (3,407) (3,407) Balance at end of period $ 34,090 $ — $ 3,706 $ 37,796 The following tables present a disaggregated analysis of activity in the allowance for loan losses and loan balances for non‑acquired loans: Construction Commercial Commercial Consumer Other Income & Land Non-owner Owner Owner Home Commercial Producing Other (Dollars in thousands) Development Occupied Occupied Occupied Equity & Industrial Property Consumer Loans Total Year Ended December 31, 2017: Allowance for loan losses: Balance at beginning of period $ 4,091 $ 4,980 $ 8,022 $ 7,820 $ 3,211 $ 4,842 $ 1,542 $ 2,350 $ 102 $ 36,960 Charge-offs (546) — — (185) (330) (776) (51) (3,261) — (5,149) Recoveries 968 132 220 306 210 343 85 689 — 2,953 Provision (benefit) 1,408 1,413 (114) 1,727 159 1,079 (201) 3,010 203 8,684 Balance at end of period $ 5,921 $ 6,525 $ 8,128 $ 9,668 $ 3,250 $ 5,488 $ 1,375 $ 2,788 $ 305 $ 43,448 Loans individually evaluated for impairment $ 1,063 $ 125 $ 64 $ 37 $ 135 $ 15 $ 178 $ 7 $ — $ 1,624 Loans collectively evaluated for impairment $ 4,858 $ 6,400 $ 8,064 $ 9,631 $ 3,115 $ 5,473 $ 1,197 $ 2,781 $ 305 $ 41,824 Loans: Loans individually evaluated for impairment $ 43,230 $ 1,375 $ 5,642 $ 5,632 $ 3,011 $ 1,156 $ 3,138 $ 239 $ — $ 63,423 Loans collectively evaluated for impairment 787,645 1,007,518 1,257,134 1,524,628 434,631 814,031 190,709 378,746 33,690 6,428,732 Total non-acquired loans $ 830,875 $ 1,008,893 $ 1,262,776 $ 1,530,260 $ 437,642 $ 815,187 $ 193,847 $ 378,985 $ 33,690 $ 6,492,155 Year Ended December 31, 2016: Allowance for loan losses: Balance at beginning of period $ 4,116 $ 3,568 $ 8,341 $ 7,212 $ 2,929 $ 3,974 $ 1,963 $ 1,694 $ 293 $ 34,090 Charge-offs (159) (111) (118) (226) (808) (876) (7) (3,597) — (5,902) Recoveries 912 512 54 134 299 292 87 943 — 3,233 Provision (benefit) (778) 1,011 (255) 700 791 1,452 (501) 3,310 (191) 5,539 Balance at end of period $ 4,091 $ 4,980 $ 8,022 $ 7,820 $ 3,211 $ 4,842 $ 1,542 $ 2,350 $ 102 $ 36,960 Loans individually evaluated for impairment $ 348 $ 170 $ 67 $ 80 $ 40 $ 386 $ 242 $ 4 $ — $ 1,337 Loans collectively evaluated for impairment $ 3,743 $ 4,810 $ 7,955 $ 7,740 $ 3,171 $ 4,456 $ 1,300 $ 2,346 $ 102 $ 35,623 Loans: Loans individually evaluated for impairment $ 3,033 $ 806 $ 6,245 $ 5,673 $ 1,674 $ 1,263 $ 2,372 $ 145 $ — $ 21,211 Loans collectively evaluated for impairment 577,431 713,909 1,171,500 1,191,948 381,544 670,135 175,866 324,093 13,404 5,219,830 Total non-acquired loans $ 580,464 $ 714,715 $ 1,177,745 $ 1,197,621 $ 383,218 $ 671,398 $ 178,238 $ 324,238 $ 13,404 $ 5,241,041 Year Ended December 31, 2015: Allowance for loan losses: Balance at beginning of period $ 5,666 $ 3,154 $ 8,415 $ 6,866 $ 2,829 $ 3,561 $ 2,232 $ 1,367 $ 449 $ 34,539 Charge-offs (219) (156) (851) (374) (547) (357) (102) (3,574) — (6,180) Recoveries 376 67 31 143 244 844 85 1,011 — 2,801 Provision (benefit) (1,707) 503 746 577 403 (74) (252) 2,890 (156) 2,930 Balance at end of period $ 4,116 $ 3,568 $ 8,341 $ 7,212 $ 2,929 $ 3,974 $ 1,963 $ 1,694 $ 293 $ 34,090 Loans individually evaluated for impairment $ 615 $ 34 $ 101 $ 138 $ 3 $ 279 $ 422 $ 3 $ 12 $ 1,607 Loans collectively evaluated for impairment $ 3,501 $ 3,534 $ 8,240 $ 7,074 $ 2,926 $ 3,695 $ 1,541 $ 1,691 $ 281 $ 32,483 Loans: Loans individually evaluated for impairment $ 6,280 $ 1,452 $ 7,725 $ 7,549 $ 309 $ 1,487 $ 4,891 $ 102 $ 423 $ 30,218 Loans collectively evaluated for impairment 395,699 486,325 1,025,673 1,011,435 318,946 502,321 170,957 233,002 46,150 4,190,508 Total non-acquired loans $ 401,979 $ 487,777 $ 1,033,398 $ 1,018,984 $ 319,255 $ 503,808 $ 175,848 $ 233,104 $ 46,573 $ 4,220,726 The following tables present a disaggregated analysis of activity in the allowance for loan losses and loan balances for acquired non-credit impaired loans: Construction Commercial Commercial Consumer Other Income & Land Non-owner Owner Owner Home Commercial Producing (Dollars in thousands) Development Occupied Occupied Occupied Equity & Industrial Property Consumer Other Total Year Ended December 31, 2017 Allowance for loan losses: Balance at beginning of period $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Charge-offs (82) — — (150) (859) (71) — (468) — (1,630) Recoveries 4 — 2 41 393 6 8 23 — 477 Provision (benefit) 78 — (2) 109 466 65 (8) 445 — 1,153 Balance, December 31, 2017 $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans: Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment 403,357 817,166 521,818 710,611 320,591 398,696 196,669 137,710 1,289 3,507,907 Total acquired non-credit impaired loans $ 403,357 $ 817,166 $ 521,818 $ 710,611 $ 320,591 $ 398,696 $ 196,669 $ 137,710 $ 1,289 $ 3,507,907 Year Ended December 31, 2016 Allowance for loan losses: Balance at beginning of period $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Charge-offs — — 39 — (428) (66) — (532) — (987) Recoveries 4 — — 12 199 9 43 51 — 318 Provision (benefit) (4) — (39) (12) 229 57 (43) 481 — 669 Balance, December 30, 2016 $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans: Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment 10,090 34,628 27,195 408,270 160,879 13,641 39,342 142,654 — 836,699 Total acquired non-credit impaired loans $ 10,090 $ 34,628 $ 27,195 $ 408,270 $ 160,879 $ 13,641 $ 39,342 $ 142,654 $ — $ 836,699 Year Ended December 31, 2015 Allowance for loan losses: Balance at beginning of period $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Charge-offs — — — (360) (1,662) (118) (4) (643) — (2,787) Recoveries 4 — — 102 237 19 4 21 — 387 Provision (benefit) (4) — — 258 1,425 99 — 622 — 2,400 Balance, December 31, 2015 $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans: Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment 13,849 40,103 39,220 518,107 190,968 25,475 51,169 170,647 — 1,049,538 Total acquired non-credit impaired loans $ 13,849 $ 40,103 $ 39,220 $ 518,107 $ 190,968 $ 25,475 $ 51,169 $ 170,647 $ — $ 1,049,538 The following tables present a disaggregated analysis of activity in the allowance for loan losses and loan balances for acquired credit impaired loans: Commercial Real Estate- Commercial Construction and Residential Commercial (Dollars in thousands) Real Estate Development Real Estate Consumer and Industrial Single Pay Total Year Ended December 31, 2017: Allowance for loan losses: Balance, December 31, 2016 $ $ $ $ $ $ — $ Provision for loan losses before benefit attributable to FDIC loss share agreements 163 1,662 — Benefit attributable to FDIC loss share agreements — — — — — — — Total provision for loan losses charged to operations 163 1,662 — Provision for loan losses recorded through the FDIC loss share receivable — — — — — — — Reduction due to loan removals — — Balance, December 31, 2017 $ $ $ $ $ $ — $ Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment $ $ $ $ $ $ — $ Loans:* Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment — Total acquired credit impaired loans $ $ $ $ $ $ — $ Year Ended December 31, 2016: Allowance for loan losses: Balance, December 31, 2015 $ 56 $ 177 $ 2,986 $ 313 $ 174 $ — $ 3,706 Provision for loan losses before benefit attributable to FDIC loss share agreements 1 — (129) 533 183 — 588 Benefit attributable to FDIC loss share agreements — — 23 — — — 23 Total provision for loan losses charged to operations 1 — (106) 533 183 — 611 Provision for loan losses recorded through the FDIC loss share receivable — — (23) — — — (23) Reduction due to loan removals (16) (38) (438) (288) (119) — (899) Balance, December 31, 2016 $ 41 $ 139 $ 2,419 $ 558 $ 238 $ — $ 3,395 Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment $ 41 $ 139 $ 2,419 $ 558 $ 238 $ — $ 3,395 Loans:* Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment 218,821 44,373 258,100 59,300 25,347 — 605,941 Total acquired credit impaired loans $ 218,821 $ 44,373 $ 258,100 $ 59,300 $ 25,347 $ — $ 605,941 Year Ended December 31, 2015: Allowance for loan losses: Balance, December 31, 2014 $ 1,579 $ 336 $ 4,387 $ 275 $ 718 $ 70 $ 7,365 Provision for loan losses before benefit attributable to FDIC loss share agreements (499) (68) 99 336 (118) (2) (252) Benefit attributable to FDIC loss share agreements 459 74 228 (107) 131 1 786 Total provision for loan losses charged to operations (40) 6 327 229 13 (1) 534 Provision for loan losses recorded through the FDIC loss share receivable (459) (74) (228) 107 (131) (1) (786) Reduction due to loan removals (1,024) (91) (1,500) (298) (426) (68) (3,407) Balance, December 31, 2015 $ 56 $ 177 $ 2,986 $ 313 $ 174 $ — $ 3,706 Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment $ 56 $ 177 $ 2,986 $ 313 $ 174 $ — $ 3,706 Loans:* Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment 268,058 54,272 313,319 70,734 31,193 — 737,576 Total acquired credit impaired loans $ 268,058 $ 54,272 $ 313,319 $ 70,734 $ 31,193 $ — $ 737,576 * The carrying value of acquired credit impaired loans includes a non‑accretable difference which is primarily associated with the assessment of credit quality of acquired loans. As part of the on‑going monitoring of the credit quality of the Company’s loan portfolio, management tracks certain credit quality indicators including trends related to (i) the level of classified loans, (ii) net charge‑offs, (iii) non‑performing loans (see details below) and (iv) the general economic conditions of the markets that we serve. The Company utilizes a risk grading matrix to assign a risk grade to each of its loans. A description of the general characteristics of the risk grades is as follows: · Pass—These loans range from minimal credit risk to average however still acceptable credit risk. · Special mention—A special mention loan has potential weaknesses that deserve management’s close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the loan or the institution’s credit position at some future date. · Substandard—A substandard loan is inadequately protected by the current sound worth and paying capacity of the obligor or of the collateral pledged, if any. Loans so classified must have a well‑defined weakness, or weaknesses, that may jeopardize the liquidation of the debt. A substandard loan is characterized by the distinct possibility that the Bank will sustain some loss if the deficiencies are not corrected. · Doubtful—A doubtful loan has all of the weaknesses inherent in one classified as substandard with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of the currently existing facts, conditions and values, highly questionable and improbable. The following table presents the credit risk profile by risk grade of commercial non‑acquired loans: Construction & Development Commercial Non-owner Occupied Commercial Owner Occupied December 31, December 31, December 31, December 31, December 31, December 31, (Dollars in thousands) 2017 2016 2017 2016 2017 2016 Pass $ 818,240 $ 567,398 $ 999,049 $ 701,150 $ 1,232,927 $ 1,149,417 Special mention 8,758 8,421 7,864 11,434 23,575 22,133 Substandard 3,877 4,645 1,980 2,131 6,274 6,195 Doubtful — — — — — — $ 830,875 $ 580,464 $ 1,008,893 $ 714,715 $ 1,262,776 $ 1,177,745 Commercial & Industrial Other Income Producing Property Commercial Total December 31, December 31, December 31, December 31, December 31, December 31, 2017 2016 2017 2016 2017 2016 Pass $ 801,885 $ 655,157 $ 186,158 $ 167,025 $ 4,038,259 $ 3,240,147 Special mention 11,130 14,325 6,034 9,280 57,361 65,593 Substandard 2,172 1,916 1,655 1,933 15,958 16,820 Doubtful — — — — — — $ 815,187 $ 671,398 $ 193,847 $ 178,238 $ 4,111,578 $ 3,322,560 The following table presents the credit risk profile by risk grade of consumer non‑acquired loans: Consumer Owner Occupied Home Equity Consumer December 31, December 31, December 31, December 31, December 31, December 31, (Dollars in thousands) 2017 2016 2017 2016 2017 2016 Pass $ 1,502,016 $ 1,167,768 $ 424,369 $ 368,655 $ 377,425 $ 322,654 Special mention 13,902 15,283 6,749 8,145 313 468 Substandard 14,342 14,570 6,524 6,418 1,247 1,116 Doubtful — — — — — — $ 1,530,260 $ 1,197,621 $ 437,642 $ 383,218 $ 378,985 $ 324,238 Other Consumer Total December 31, 2017 December 31, 2016 December 31, 2017 December 31, 2016 Pass $ 33,690 $ 13,404 $ 2,337,500 $ 1,872,481 Special mention — — 20,964 23,896 Substandard — — 22,113 22,104 Doubtful — — — — $ 33,690 $ 13,404 $ 2,380,577 $ 1,918,481 The following table presents the credit risk profile by risk grade of total non‑acquired loans: Total Non-acquired Loans December 31, December 31, (Dollars in thousands) 2017 2016 Pass $ 6,375,759 $ 5,112,628 Special mention 78,325 89,489 Substandard 38,071 38,924 Doubtful — — $ 6,492,155 $ 5,241,041 At December 31, 2017, the aggregate amount of non‑acquired substandard and doubtful loans totaled $38.1 million. When these loans are combined with non‑acquired OREO of $2.4 million, our non‑acquired classified assets (as defined by the South Carolina Board of Financial Institutions and the FDIC, our primary regulators) were $40.5 million. At December 31, 2016, the amounts were $38.9 million, $3.9 million, and $42.8 million, respectively. The following table presents the credit risk profile by risk grade of commercial loans for acquired non‑credit impaired loans: Commercial Non-owner Construction & Development Occupied Commercial Owner Occupied December 31, December 31, December 31, (Dollars in thousands) 2017 2016 2017 2016 2017 2016 Pass $ 394,139 $ 8,997 $ 809,241 $ 28,368 $ 513,861 $ 26,920 Special mention 4,602 253 7,913 6,171 7,740 — Substandard 4,616 840 12 89 217 275 Doubtful — — — — — — $ 403,357 $ 10,090 $ 817,166 $ 34,628 $ 521,818 $ 27,195 Other Income Producing Commercial & Industrial Property Commercial Total December 31, December 31, December 31, 2017 2016 2017 2016 2017 2016 Pass $ 388,342 $ 13,475 $ 191,229 $ 38,361 $ 2,296,812 $ 116,121 Special mention 9,883 117 4,547 273 34,685 6,814 Substandard 471 49 893 708 6,209 1,961 Doubtful — — — — — — $ 398,696 $ 13,641 $ 196,669 $ 39,342 $ 2,337,706 $ 124,896 The following table presents the credit risk profile by risk grade of consumer loans for acquired non‑credit impaired loans: Consumer Owner Occupied Home Equity Consumer December 31, December 31, December 31, (Dollars in thousands) 2017 2016 2017 2016 2017 2016 Pass $ 703,557 $ 404,761 $ 301,842 $ 151,752 $ 134,530 $ 139,686 Special mention 4,165 1,326 10,477 4,113 541 1,102 Substandard 2,889 2,183 8,272 5,014 2,639 1,866 Doubtful — — — — — — $ 710,611 $ 408,270 $ 320,591 $ 160,879 $ 137,710 $ 142,654 Other Consumer Total December 31, December 31, 2017 2016 2017 2016 Pass $ 1,289 $ — $ 1,141,218 $ 696,199 Special mention — — 15,183 6,541 Substandard — — 13,800 9,063 Doubtful — — — — $ 1,289 $ — $ 1,170,201 $ 711,803 The following table presents the credit risk profile by risk grade of total acquired non-credit impaired loans: Total Acquired Non-credit Impaired Loans December 31, (Dollars in thousands) 2017 2016 Pass $ 3,438,030 $ 812,320 Special mention 49,868 13,355 Substandard 20,009 11,024 Doubtful — — $ 3,507,907 $ 836,699 The following table prese

FDIC Indemnification Asset

FDIC Indemnification Asset	12 Months Ended
	Dec. 31, 2017
FDIC Indemnification Asset
FDIC Indemnification Asset	Note 5—FDIC Indemnification Asset The following table provides changes in the FDIC indemnification asset: Year Ended December 31, (Dollars in thousands) 2017 2016 2015 Balance at beginning of period $ — $ 4,401 $ 22,161 Decrease in expected losses on loans — (23) (788) Additional recoveries on OREO — (1,736) (5,440) Reimbursable expenses — 71 789 Amortization of discounts and premiums, net — (1,475) (8,587) Payments to (from) FDIC — 853 (3,734) Termination of Loss Share Agreements — (2,091) — Balance at end of period $ — $ — $ 4,401 As noted above, on June 23, 2016, the Bank entered into an early termination agreement with the FDIC with respect to all of its outstanding loss share agreements. The Bank recorded a pre-tax charge of $4.4 million, which resulted from a $2.3 million payment to the FDIC as consideration for the early termination, plus the amortization of the remaining FDIC indemnification asset of $2.1 million, net of the clawback, as of March 31, 2016. The entire pre-tax charge was recorded in noninterest income through “Amortization of the FDIC indemnification asset” on the consolidated statements of income. During 2016, the Bank paid a net $853,000 to the FDIC, prior to the termination of the agreements. The indemnification asset was amortized through March 31, 2016. All assets previously classified as covered became uncovered effective June 23, 2016, and as a result the Bank recognizes the full amount of future charge-offs, recoveries, gains, losses, and expenses related to these previously covered assets, as the FDIC will no longer share in these amounts. As of the termination date, covered loans totaled $87.4 million and covered other real estate owned (“OREO”) totaled $3.0 million.

Other Real Estate Owned

Other Real Estate Owned	12 Months Ended
	Dec. 31, 2017
Other Real Estate Owned
Other Real Estate Owned	Note 6—Other Real Estate Owned The following is a summary of the changes in the carrying value of OREO: Covered (Dollars in thousands) OREO OREO Total Balance, December 31, 2014 $ 26,499 $ 16,227 $ 42,726 Transfers 2,245 (2,245) — Additions, net 21,419 9,283 30,702 Writedowns (3,163) (6,265) (9,428) Sold (22,197) (11,249) (33,446) Balance, December 31, 2015 Transfers — Additions, net 13,993 Writedowns (4,401) Sold (21,830) Balance, December 31, 2016 $ $ — $ Acquired in Southeastern Bank Financial Corp. acquisition — 385 Acquired in Park Sterling Corp. acquisition — 2,046 Additions, net — 11,558 Writedowns — Sold — Balance, December 31, 2017 $ $ — $ As noted above, on June 23, 2016, the Bank entered into an early termination agreement with the FDIC with respect to all of its outstanding loss share agreements. The covered OREO shown above was presented net of the related fair value discount, and the activity reflected for the covered assets is prior to the early termination of the FDIC loss share agreements. All remaining OREO previously classified as covered became uncovered during the second quarter of 2016, which consisted of 17 properties with a carrying value of $4.2 million as of March 31, 2016. At December 31, 2017, there were a total of 82 properties included in OREO which compares to 90 properties included in OREO, at December 31, 2016. At December 31, 2017, the Company had $2.6 million in residential real estate included in OREO and $6.1 million in residential real estate consumer mortgage loans in the process of foreclosure.

Premises and Equipment

Premises and Equipment	12 Months Ended
	Dec. 31, 2017
Premises and Equipment
Premises and Equipment	Note 7—Premises and Equipment Premises and equipment consisted of the following: December 31, (Dollars in thousands) Useful Life 2017 2016 Land $ 81,291 $ 56,454 Buildings and leasehold improvements 15 - 40 years 227,402 157,927 Equipment and furnishings 3 - 10 years 104,319 78,800 Construction in process 2,305 3,613 Total 415,317 296,794 Less accumulated depreciation (159,752) (113,284) $ 255,565 $ 183,510 Depreciation expense charged to operations was $15.2 million, $11.5 million, and $11.1 million for the years ended December 31, 2017, 2016, and 2015, respectively. At December 31, 2017 and 2016, computer software with an original cost of $13.0 million and $9.7 million, respectively, were being amortized using the straight‑line method over thirty-six months. Amortization expense totaled $2.5 million, $2.3 million, and $1.8 million for the years ended December 31, 2017, 2016, and 2015, respectively.

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	12 Months Ended
	Dec. 31, 2017
Goodwill and Other Intangible Assets
Goodwill and Other Intangible Assets	Note 8—Goodwill and Other Intangible Assets In accordance with FASB ASC 350, Intangibles—Goodwill and Other , the Company ceased amortization of goodwill as of January 1, 2002. The Company has determined that there has been no impairment of goodwill as of December 31, 2017. The following is a summary of changes in the carrying amounts of goodwill: Year Ended December 31, (Dollars in thousands) 2017 2016 Balance at beginning of period $ 338,340 $ 338,340 Additions: Goodwill from Southeastern Bank Financial acquisition 258,295 — Goodwill from Park Sterling Financial merger 402,951 — Balance at end of period $ 999,586 $ 338,340 The Company’s other intangible assets, consisting of core deposit intangibles, noncompete intangibles, and client list intangibles are included on the face of the balance sheet. The following is a summary of gross carrying amounts and accumulated amortization of other intangible assets: December 31, (Dollars in thousands) 2017 2016 Gross carrying amount $ 126,449 $ 82,154 Accumulated amortization (52,660) (42,306) $ 73,789 $ 39,848 Amortization expense totaled $10.4 million, $7.6 million and $8.3 million for the years ended December 31, 2017, 2016, and 2015, respectively. Other intangibles are amortized using either the straight‑line method or an accelerated basis over their estimated useful lives, with lives generally between 2 and 15 years. Estimated amortization expense for other intangibles for each of the next five years is as follows: (Dollars in thousands) Year ended December 31: 2018 $ 13,614 2019 12,585 2020 11,419 2021 10,186 2022 8,918 Thereafter 17,067 $ 73,789

Deposits

Deposits	12 Months Ended
	Dec. 31, 2017
Deposits Disclosure Abstract
Deposits	Note 9—Deposits The Company’s total deposits are comprised of the following: December 31, (Dollars in thousands) 2017 2016 Certificates of deposit $ 1,738,384 $ 872,773 Interest-bearing demand deposits 5,300,108 3,461,004 Non-interest bearing demand deposits 3,047,432 2,199,046 Savings deposits 1,443,918 799,615 Other time deposits 2,924 1,985 Total deposits $ 11,532,766 $ 7,334,423 At December 31, 2017 and 2016 the Company had $325.3 million and $83.7 million in certificates of deposits of $250,000 and greater, respectively. At December 31, 2017 and 2016, the Company had $43.6 million and $2.9 million, respectively, in traditional, out‑of‑market brokered deposits. At December 31, 2017, the scheduled maturities of time deposits (includes $2.9 million of other time deposits) of all denominations are as follows: (Dollars in thousands) Year ended December 31: 2018 $ 1,131,167 2019 330,359 2020 111,836 2021 119,104 2022 40,581 Thereafter 8,261 $ 1,741,308

Federal Funds Purchased and Sec

Federal Funds Purchased and Securities Sold Under Agreements to Repurchase	12 Months Ended
	Dec. 31, 2017
Federal Funds Purchased and Securities Sold Under Agreements to Repurchase
Federal Funds Purchased and Securities Sold Under Agreements to Repurchase	Note 10—Federal Funds Purchased and Securities Sold Under Agreements to Repurchase Federal funds purchased and securities sold under agreements to repurchase generally mature within one to three days from the transaction date, but may have maturities as long as nine months per our policies. Certain of the borrowings have no defined maturity date. Information concerning federal funds purchased and securities sold under agreements to repurchase are below: December 31, 2017 2016 2015 (Dollars in thousands) Amount Rate Amount Rate Amount Rate At period-end: Federal funds purchased and securities sold under repurchase agreements $ 286,857 0.45 % $ 313,773 0.24 % $ 288,231 0.19 % Average for the year: Federal funds purchased and securities sold under repurchase agreements $ 325,713 0.33 % $ 320,901 0.18 % $ 291,428 0.14 % Maximum month-end balance: Federal funds purchased and securities sold under repurchase agreements $ 401,786 $ 334,260 $ 320,373 Securities Sold Under Agreements to Repurchase Securities sold under agreements to repurchase ("repurchase agreements") represent funds received from customers, generally on an overnight or continuous basis, which are collateralized by investment securities owned or, at times, borrowed and re-hypothecated by the Company. Repurchase agreements are subject to terms and conditions of the master repurchase agreements between the Company and the client and are accounted for as secured borrowings. The Company monitors the fair value of the underlying securities on a daily basis. Some securities underlying these agreements include arrangements to resell securities from broker‑dealers approved by the Company. Repurchase agreements are reflected at the amount of cash received in connection with the transaction and included in federal funds purchased and securities sold under agreements to repurchase on the condensed consolidated balance sheets. At December 31, 2017 and December 31, 2016, the Company's repurchase agreement totaled $211.1 million and $238.3 million, respectively. All of the Company’s repurchase agreements were overnight or continuous (until-further-notice) agreements at December 31, 2017 and December 31, 2016. These borrowings were collateralized with government, government-sponsored enterprise, or state and political subdivision-issued securities with a carrying value of $211.1 million and $238.3 million at December 31, 2017 and December 31, 2016, respectively. Declines in the value of the collateral would require the Company to increase the amounts of securities pledged.

Other Borrowings

Other Borrowings	12 Months Ended
	Dec. 31, 2017
Other Borrowings.
Other Borrowings	Note 11— Other Borrowings The Company’s other borrowings were as follows: 2017 2016 Weighted Weighted Interest Average Interest Average Rate at Interest Rate at Interest (Dollars in thousands) Maturity 12/31/2017 Balance Rate 12/31/2016 Balance Rate Short-term borrowings: Federal Home Loan Bank Fixed Rate Credit 1/16/2018 % $ — $ — Federal Home Loan Bank Fixed Rate Credit 4/27/2018 % — — Total short-term borrowings % — — Long-term borrowings SCBT Capital Trust I junior subordinated debt (1) 6/15/2035 % % 12,372 SCBT Capital Trust II junior subordinated debt (1) 6/15/2035 % % 8,248 SCBT Capital Trust III junior subordinated debt (1) 7/18/2035 % % 20,619 SAVB Capital Trust I junior subordinated debt (1) 10/7/2033 % % 6,186 SAVB Capital Trust II junior subordinated debt (1) 12/15/2034 % % 4,124 TSB Statutory Trust I junior subordinated debt (1) 3/14/2037 % % 3,093 Southeastern Bank Financial Statutory Trust I junior subordinated debt (1) 12/15/2035 % — — Southeastern Bank Financial Statutory Trust II junior subordinated debt (1) 6/15/2036 % — — CSBC Statutory Trust I junior subordinated debt (1) 12/15/2035 % — — Community Capital Statutory Trust I junior subordinated debt (1) 6/15/2036 % — — FCRV Statutory Trust I junior subordinated debt (1) 12/15/2036 % — — Provident Community Bancshares Capital Trust I junior subordinated debt (1) 3/1/2037 % — — Provident Community Bancshares Capital Trust II junior subordinated debt (1) 10/1/2036 % — — Fair Market Value Discount Trust Preferred Debt Acquired (213) Other Various % % 929 Total long-term borrowings % 55,358 % Total borrowings $ 216,385 $ 55,358 (1) All of the junior subordinated debt above is adjustable rate based on three-month LIBOR plus a spread ranging from 140 basis points to 285 basis points. Short-Term FHLB Advances The Company has from time‑to‑time entered into borrowing agreements with the FHLB. Advances under these agreements are collateralized by stock in the FHLB, qualifying first and second mortgage residential loans, and commercial real estate loans under a blanket‑floating lien. As of December 31, 2017, and 2016, there was $100.0 million and $0 in outstanding Short-Term FHLB advances, respectively. The weighted average cost of the FHLB advances at period end December 31, 2017 was 1.48% and the weighted average cost year to date for the year ended December 31, 2017 was 0.97%. Net eligible loans of the Company pledged via a blanket lien to the FHLB for advances and letters of credit at December 31, 2017, were approximately $2.6 billion which allows the Company a total borrowing capacity at FHLB of approximately $1.9 billion. After accounting for letters of credit totaling $6.3 million, the Company had unused net credit available with the FHLB in the amount of approximately $1.9 billion at December 31, 2017. Junior Subordinated Debt The obligations of the Company with respect to the issuance of the capital securities constitute a full and unconditional guarantee by the Company of the trusts’ obligations with respect to the capital securities. Subject to certain exceptions and limitations, the Company may elect from time to time to defer interest payments on the junior subordinated debt securities, which would result in a deferral of distribution payments on the related capital securities. All of the Company’s junior subordinated debt is callable after five years from issuance. Therefore, all of the junior subordinated debt is callable at December 31, 2017. As of December 31, 2017, the sole assets of the trusts were an aggregate of $114.5 million of the Company’s junior subordinated debt securities with like maturities and like interest rates to the trust preferred securities. As of December 31, 2017, the Company recorded a $114.5 million liability for the junior subordinated debt securities, net of a $4.1 million discount recorded on Southeastern Bank Financial Statutory Trust I and II, Citizens South Banking Corporation Statutory Trust I, Community Capital Statutory Trust I, FCRV Statutory Trust I, Provident Community Bancshares Capital Trust I and II. The Company, as issuer, can call any of these subordinated debt securities without penalty. If the Company were to call the securities, the amount paid to the holders would be $118.6 million and the Company would fully amortize any remaining discount into interest expense. The remaining discount is being amortized over either a two and one-half year period or five year period. As of December 31, 2017, and 2016, there was $114.5 million (net of discount of $4.1 million) and $54.4 million (net of discount of $213,000), respectively, in junior subordinated debt. The weighted average cost of the junior subordinated debt at period end December 31, 2017 was 3.26% and the weighted average cost year to date for the year ended December 31, 2017 of 2.99%. This does not take into account the discount. If the discount were taken into account the weighted average cost year to date would be 3.94%. This compares to a weighted average cost of the junior subordinated debt at period end December 31, 2016 of 2.82% and the weighted average cost year to date for the year ended December 31, 2016 of 2.59%. If the discount were taken into account the weighted average cost year to date would be 2.99% in 2016. For regulatory purposes, the junior subordinated debt securities may be classified as Tier 1 Capital. The trust preferred securities represent a minority investment in an unconsolidated subsidiary, which is currently included in Tier 1 Capital so long as it does not exceed 25% of total Tier 1 Capital. Line of Credit On November 15, 2017, the Company entered into a Credit Agreement (the “Agreement”) with U.S. Bank National Association (the “Lender”). The Agreement provides for a $10 million unsecured line of credit by the Lender to the Company. The maturity date of the Agreement is November 15, 2018, provided that the Agreement may be extended subject to the approval of the Lender. Borrowings by the Company under the Agreement will bear interest at a rate per annum equal to one-month LIBOR plus 1.75%. As of December 31, 2017 and 2016, and there was no outstanding balance associated with the line of credit. Principal maturities of other borrowings are summarized below: Junior Subordinated FHLB (Dollars in thousands) Debt Advances Other Total Year Ended December 31, 2018 $ — $ $ $ 2019 — — 2020 — — 2021 — — 2022 — — Thereafter — $ $ $ $

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2017
Income Taxes
Income Taxes	Note 12—Income Taxes On December 22, 2017, the President signed into law the Tax Reform Act which, among other things, lowered the maximum corporate tax rate from 35% to 21% beginning in 2018. The deferred tax assets and liabilities represent the future tax return consequences of those differences, which will either be taxable or deductible when the assets and liabilities are recovered or settled. Deferred tax assets and liabilities are reflected at income tax rates applicable to the period in which the deferred tax assets or liabilities are expected to be realized or settled. As changes in tax laws or rates are enacted, deferred tax assets and liabilities are adjusted through the provision for income taxes. As a result of the Tax Reform Act, the Company revalued its deferred tax assets and liabilities and recorded a provisional $26.6 million of additional income tax expense in the Company’s consolidated financial statements. On December 22, 2017, the SEC staff issued Staff Accounting Bulletin No. 118 to address the application of U.S. GAAP in situations when a registrant does not have the necessary information available, prepared, or analyzed (including computations) in reasonable detail to complete the accounting for certain income tax effects of the Tax Reform Act. The Company has recognized the provisional tax impact related to the revaluation of deferred tax assets and liabilities and included that amount in its consolidated financial statements for the year ended December 31, 2017. The ultimate impact may differ from these provisional amounts, possibly materially, due to, among other things, additional analysis, changes in interpretations and assumptions the Company has made, additional regulatory guidance that may be issued, and actions the Company may take as a result of the Tax Reform Act. The accounting is expected to be completed when the 2017 U.S. corporate tax return is filed in 2018. The provision for income taxes consists of the following: Year Ended December 31, (Dollars in thousands) 2017 2016 2015 Current: Federal $ 46,153 $ 37,187 $ 41,527 State 3,018 3,325 2,327 Total current tax expense 49,171 40,512 43,854 Deferred: Federal 31,971 11,684 6,344 State 109 564 704 Total deferred tax expense 32,080 12,248 7,048 Provision for income taxes $ 81,251 $ 52,760 $ 50,902 The provision for income taxes differs from that computed by applying the federal statutory income tax rate of 35% to income before provision for income taxes, as indicated in the following analysis: Year Ended December 31, (Dollars in thousands) 2017 2016 2015 Income taxes at federal statutory rate $ 59,082 $ 53,915 $ 52,631 Increase (reduction) of taxes resulting from: State income taxes, net of federal tax benefit 2,032 2,527 1,970 Non-deductible merger expenses 586 686 — Tax-exempt interest (2,840) (1,956) (1,842) Income tax credits (1,951) (2,068) (1,781) Dividends received deduction (12) (12) (8) Revaluation of net deferred tax asset due to tax law change 26,558 — — Other, net (2,204) (332) (68) $ 81,251 $ 52,760 $ 50,902 The components of the net deferred tax asset are as follows: December 31, (Dollars in thousands) 2017 2016 Allowance for loan losses $ 11,011 $ 14,913 Other-than-temporary impairment on securities 257 295 Share-based compensation 3,935 3,915 Pension plan and post-retirement benefits 607 1,450 Deferred compensation 13,048 3,155 Purchase accounting adjustments 33,888 34,499 FDIC Acquisition 3,190 — Other real estate owned 838 962 Tax deductible goodwill 32 682 Net operating loss carryforwards 14,066 14,645 Cash flow hedge 54 190 Unrealized losses on investment securities available for sale 3,472 1,053 Other 643 688 Total deferred tax assets 85,041 76,447 FDIC Acquisition — 3,540 Depreciation 5,870 7,510 Intangible assets 14,745 11,239 Deferred loan fees 7,840 7,911 Prepaid expense 474 523 Mortgage servicing rights 6,818 10,380 Other 372 2,219 Total deferred tax liabilities 36,119 43,322 Net deferred tax assets before valuation allowance 48,922 33,125 Less, valuation allowance (3,020) (2,002) Net deferred tax assets $ 45,902 $ 31,123 The Company had federal net operating loss (“NOL”) carryforwards of $30.3 million and $27.9 million for the years ended December 31, 2017 and 2016, respectively, which expire in varying amounts through 2034. As a result of the Peoples, Savannah and Park Sterling ownership changes in 2012 and 2017, respectively, Section 382 of the Internal Revenue Code places an annual limitation of the amount of federal net operating loss carryforwards which the Company may utilize. Additionally, section 382 limits the Company’s ability to utilize certain tax deductions (realized built‑in losses or “RBIL”) due to the existence of a Net Unrealized Built‑in Loss (“NUBIL”) at the time of the change in control. The Company is allowed to carry forward any such RBIL under terms similar to those related to NOLs. Consequently, $7.5 million of the Company’s NOL carryforwards attributed to the Peoples acquisition are subject to annual limitations of $1.5 million, and $17.0 million of the Company’s NOL carryforwards attributed to the Savannah acquisition are subject to annual limitation of $2.0 million, and $5.8 million of the Company’s NOL carryforwards attributed to the Park Sterling acquisition are subject to annual limitations of $3.3 million. Additionally, the Company’s RBIL carryforwards attributed to the Park Sterling acquisition totaling $15 million are subject to annual limitations of $1.1 million. The Company expects all section 382 limited carryforwards to be realized within the applicable carryforward period. The Company had state net operating loss carryforwards of $88.5 million and $72.1 million for the years ended December 31, 2017 and 2016 respectively, which expire in varying amounts through 2037. There is a valuation allowance of $3.0 million that relates to the parent company’s state operating loss carryforwards for which realizability is uncertain. The change in the valuation allowance for the years ended December 31, 2017, 2016, and 2015 was immaterial. In assessing the realizability of deferred tax assets, management considers whether it is more likely than not that some portion or all of the deferred tax assets will not be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during periods in which those temporary differences become deductible. Management considers the scheduled reversal of deferred tax liabilities, projected future taxable income and tax planning strategies in making this assessment. Based on the level of historical taxable income and projections for future taxable income over the periods in which the deferred tax assets are deductible, management believes it is more likely than not that the Company will realize the benefits of these deferred tax assets, net of the valuation allowance at December 31, 2017. As of December 31, 2017, the Company had no material unrecognized tax benefits or accrued interest and penalties. It is the Company’s policy to account for interest and penalties accrued relative to unrecognized tax benefits as a component of income tax expense. Generally, the Company’s federal and state income tax returns are no longer subject to examination by taxing authorities for years prior to 2014.

Other Expense

Other Expense	12 Months Ended
	Dec. 31, 2017
Other Expense
Other Expense	Note 13— Other Expense The following is a summary of the components of other noninterest expense: Year Ended December 31, (Dollars in thousands) 2017 2016 2015 Business development and staff related $ 7,449 $ 6,210 $ 6,642 Other loan expense 2,590 2,486 2,942 Director and shareholder expense 1,635 2,004 2,118 Armored carrier and courier expense 1,703 1,470 1,354 Property and sales tax 1,033 1,145 1,362 Other 9,310 8,016 7,031 $ 23,720 $ 21,331 $ 21,449

Earnings Per Common Share

Earnings Per Common Share	12 Months Ended
	Dec. 31, 2017
Earnings Per Share
Earnings Per Share	Note 14—Earnings Per Common Share The following table sets forth the computation of basic and diluted earnings per common share: Year Ended December 31, (Dollars and shares in thousands, except for per share amounts) 2017 2016 2015 Basic earnings per common share: Net income $ 87,554 $ 101,282 $ 99,473 Weighted-average basic common shares 29,686 23,998 23,966 Basic earnings per common share $ $ $ Diluted earnings per share: Net income $ 87,554 $ 101,282 $ 99,473 Weighted-average basic common shares 29,686 23,998 23,966 Effect of dilutive securities 236 221 258 Weighted-average dilutive shares 29,922 24,219 24,224 Diluted earnings per common share $ 2.93 $ 4.18 $ 4.11 The calculation of diluted earnings per common share excludes outstanding stock options for which the results would have been antidilutive under the treasury stock method as follows: Year Ended December 31, (Dollars in thousands) 2017 2016 2015 Number of shares Range of exercise prices $ to $ $ to $ $ to $

Accumulated Other Comprehensive

Accumulated Other Comprehensive Inocme (Loss)	12 Months Ended
	Dec. 31, 2017
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income (Loss)	Note 15—Accumulated Other Comprehensive Income (Loss) The changes in each component of accumulated other comprehensive income (loss), net of tax, were as follows: Unrealized Gains and Losses Gains and on Securities Losses on Benefit Available Cash Flow (Dollars in thousands) Plans for Sale Hedges Total Balance at December 31, 2014 $ (5,315) $ 5,467 $ (529) $ (377) Other comprehensive loss before reclassifications (1,332) (3,181) (104) (4,617) Amounts reclassified from accumulated other comprehensive income 632 302 189 1,123 Net comprehensive income (loss) (700) (2,879) 85 (3,494) Balance at December 31, 2015 (6,015) 2,588 (444) (3,871) Other comprehensive loss before reclassifications (749) (4,221) (34) (5,004) Amounts reclassified from accumulated other comprehensive income (loss) 569 (75) 170 664 Net comprehensive income (loss) (180) (4,296) 136 (4,340) Balance at December 31, 2016 (6,195) (1,708) (308) (8,211) Other comprehensive loss before reclassifications (365) (2,157) (13) (2,535) Amounts reclassified from accumulated other comprehensive income (loss) 562 (413) 170 319 Net comprehensive income (loss) 197 (2,570) 157 (2,216) Balance at December 31, 2017 $ (5,998) $ (4,278) $ (151) $ (10,427) The table below presents the reclassifications out of accumulated other comprehensive income, net of tax: Amount Reclassified from Accumulated (Dollars in thousands) For the Years Ended December 31, Accumulated Other Comprehensive Income (Loss) Component 2017 2016 2015 Income Statement Line Item Affected Losses on cash flow hedges: Interest rate contracts $ 275 $ 275 $ 305 Interest expense (105) (105) (116) Provision for income taxes 170 170 189 Net income Gains on sales of available for sale securities: $ (1,421) $ (122) $ — Securities gains, net 542 47 — Provision for income taxes (879) (75) — Net income Other-than-temporary impairment losses on available for sale securities: $ 753 $ — $ 489 Other-than-temporary impairment losses (287) — (187) Provision for income taxes 466 — 302 Net income Amortization of defined benefit pension: Actuarial losses $ 908 $ 920 $ 1,021 Salaries and employee benefits (346) (351) (389) Provision for income taxes 562 569 632 Net income Total reclassifications for the period $ 319 $ 664 $ 1,123

Restrictions on Subsidiary Divi

Restrictions on Subsidiary Dividends, Loans, or Advances	12 Months Ended
	Dec. 31, 2017
Restrictions on Subsidiary Dividends, Loans, or Advances
Restrictions on Subsidiary Dividends, Loans, or Advances.	Note 16—Restrictions on Subsidiary Dividends, Loans, or Advances The Company pays cash dividends to shareholders from its assets, which are mainly provided by dividends from its banking subsidiary. However, certain restrictions exist regarding the ability of its subsidiary to transfer funds to the Company in form of cash dividends, loans or advances. The approval of the South Carolina Board of Financial Institutions (“SCBFI”) is required to pay dividends that exceeds 100% of net income in any calendar year. The Federal Reserve Board, the OCC, and the FDIC have issued policy statements which provide that bank holding companies and insured banks should generally only pay dividends out of current earnings. In January 2015, the Bank paid a special dividend to the Company of $45.0 million for which SCBFI approval was not required. These funds were used to redeem $46.3 million in trust preferred securities. In November 2017, the Bank paid a special dividend to the Company of $25.0 million for which SCBFI approval was not required. These funds were used to redeem $30.0 million in senior debt that was acquired in the Park Sterling merger. Under Federal Reserve regulations, the bank is also limited as to the amount it may lend to the Company. The maximum amount available for transfer from the bank to the Company in the form of loans or advances was approximately $239.6 million and $116.2 million at December 31, 2017 and 2016, respectively.

Retirement Plans

Retirement Plans	12 Months Ended
	Dec. 31, 2017
Retirement Plans
Retirement Plans	Note 17—Retirement Plans The Company and its subsidiary have a non‑contributory defined benefit pension plan covering all employees hired on or before December 31, 2005, who have attained age 21, and who have completed one year of eligible service. The Company’s funding policy is based principally, among other considerations, on contributing an amount necessary to satisfy the Internal Revenue Service’s funding standards. Effective July 1, 2009, the Company suspended the accrual of benefits for pension plan participants under the non‑contributory defined benefit plan. The pension plan remained suspended as of December 31, 2017. The following sets forth the pension plan’s funded status and amounts recognized in the Company’s accompanying consolidated financial statements: December 31, (Dollars in thousands) 2017 2016 2015 Change in benefit obligation: Benefit obligation at beginning of year $ 28,800 $ 28,260 $ 28,002 Service cost 127 112 — Interest cost 1,124 1,132 1,017 Actuarial loss 2,665 435 132 Benefits paid (1,138) (1,015) (891) Expenses (78) (124) — Benefit obligation at end of year 31,500 28,800 28,260 Change in plan assets: Fair value of plan assets at beginning of year 28,216 27,444 28,451 Actual return on plan assets 4,387 1,911 (116) Employer contribution — — — Benefits paid (1,138) (1,015) (891) Expenses (78) (124) — Fair value of plan assets at end of year 31,387 28,216 27,444 Funded (unfunded) status $ (113) $ (584) $ (816) At December 31, 2017 and 2016, the net losses recognized in accumulated other comprehensive income excluding related income tax effects were $9.2 million and $9.5 million, respectively. The components of net periodic pension cost and other amounts recognized in other comprehensive income are as follows: December 31, (Dollars in thousands) 2017 2016 2015 Interest cost $ $ 1,132 $ 1,017 Service cost 112 — Expected return on plan assets (2,131) (2,067) Recognized net actuarial loss 816 898 Net periodic pension benefit (71) (152) Net loss 655 2,315 Amortization of net loss (816) (898) Total amount recognized in other comprehensive income (161) 1,417 Total recognized in net periodic benefit cost and other comprehensive income $ $ (232) $ 1,265 The amount of estimated net loss for the defined benefit pension plan that will be amortized from accumulated other comprehensive income into periodic benefit cost over the next fiscal year is $775,000. The following is information as of the measurement date: December 31, (Dollars in thousands) 2017 2016 Projected benefit obligation $ 31,500 $ 28,800 Accumulated benefit obligation 31,500 28,800 Fair value of plan assets 31,387 28,216 The Company used a 3.50% and 4.00% discount rate in its weighted‑average assumptions used to determine the benefit obligation at December 31, 2017, and 2016, respectively. The rate of compensation increase was not applicable in the Company’s weighted‑average assumptions because of the plan curtailment at June 30, 2009. The weighted‑average assumptions used to determine net periodic pension cost are as follows: Year ended December 31, 2017 2016 2015 Discount rate 4.00 % 4.10 % 3.70 % Expected long-term return on plan assets 7.75 % 7.75 % 7.75 % For the years ended December 31, 2017, 2016, and 2015, the discount rate of 4.00%, 4.10%, and 3.70%, respectively, was determined by matching the projected benefit obligation cash flows of the plan to an independently derived yield curve, to arrive at the single equivalent rate. The expected rate of return for the pension plan’s assets represents the average rate of return to be earned on plan assets over the period the benefits included in the benefit obligation are to be paid. In developing the expected rate of return, the Company considered long‑term compound annualized returns of historical market data as well as historical actual returns on the Company’s plan assets. Using this reference information, the Company developed forward‑looking return expectations for each asset category and a weighted average expected long‑term rate of return for a targeted portfolio allocated across these investment categories. In developing the long‑term rate of return assumption for the pension plan, the Company utilized the following long‑term rate of return and standard deviation assumptions: Rate of Standard Return Deviation Asset Class Assumption Assumption Cash Equivalents 3.00 % 0.46 % High Grade Fixed Income 6.17 % 3.42 % High Yield Fixed Income 8.37 % 8.47 % International Fixed Income 6.53 % 8.08 % Large Cap Equity 10.42 % 13.26 % Mid Cap Equity 11.61 % 15.75 % Mid/Small Cap Equity 10.46 % 16.98 % Foreign Equity 7.57 % 16.45 % The portfolio’s equity weighting is consistent with the long‑term nature of the Plan’s benefit obligation, and the expected annual return on the portfolio of 7.75%. The policy, as established by the Investment Committee of the Defined Benefit Pension Plan, seeks to maximize return within reasonable and prudent levels of risk. The overall long‑term objective of the Plan is to achieve a rate of return that exceeds the actuarially assumed rate of return. The investment policy is reviewed on a regular basis and revised when appropriate based on the legal or regulatory environment, market trends, or other fundamental factors. In determining the long‑term rate of return for the pension plan, the Company considers historical rates of return and the nature of the plan’s investments. Plan assets are divided among various investment classes with allowable allocation percentages as follows: Equities 55 - 65%, Fixed Income 20 - 40%, Cash Equivalents 0 - 35%. As of December 31, 2017, approximately 64% of pension plan assets were invested with equity managers, approximately 29% of pension plan assets were invested with fixed income managers, and approximately 7% of pension plan assets were held in cash equivalents. The difference between actual and expected returns on plan assets is accumulated and amortized over future periods and, therefore, affects the recognized expenses in such future periods. Following is a description of valuation methodologies used for assets recorded at fair value. Money Market Funds Money Market Funds are public investment vehicles valued using $1 for the Net Asset Value (the “NAV”). The money market funds are classified within level 1 of the valuation hierarchy. Broad Market Fixed Income, Domestic Equity and Foreign Equity Mutual Funds Broad Market Fixed Income, Domestic Equity and Foreign Equity mutual funds are public investment vehicles valued using the NAV provided by the administrator of the fund. The NAV is based on the value of the underlying assets owned by the fund, minus its liabilities, and then divided by the number of shares outstanding. The NAV is a quoted price in an active market and classified within level 1 of the valuation hierarchy. The fair values of the Company’s pension plan assets at December 31, 2017 by asset category are as follows: Quoted Prices In Active Significant Markets Other Significant Fair Value for Identical Observable Unobservable December 31, Assets Inputs Inputs (Dollars in thousands) 2017 (Level 1) (Level 2) (Level 3) Cash and cash equivalents $ 18 $ 18 $ — $ — Money market funds 2,146 2,146 — — Broad market fixed income 9,041 9,041 — — Domestic equity 16,439 16,439 — — Foreign equity 3,743 3,743 — — Total assets $ 31,387 $ 31,387 $ — $ — As of December 31, 2017 and 2016, the Plan’s domestic equity securities did not include any of the Company’s common stock. The plan made no purchases of the Company’s stock during 2017, 2016 and 2015. Estimated future benefit payments for the next ten years: (Dollars in thousands) 2018 $ 1,318 2019 1,382 2020 1,522 2021 1,604 2022 1,637 2023-2027 8,722 $ 16,185 Expenses incurred and charged against operations with regard to all of the Company’s retirement plans were as follows: Year Ended December 31, (Dollars in thousands) 2017 2016 2015 Pension $ $ (205) $ (152) Employee savings plan/ 401(k) 7,381 6,178 5,873 Supplemental executive retirement plan 1,334 134 306 Post-retirement benefits 251 192 212 $ 8,615 $ 6,299 $ 6,239 The Company does not expect to contribute to the pension plan in 2018, but reserves the right to contribute between the minimum required and maximum deductible amounts as determined under applicable federal laws. The Company and its subsidiaries have a Safe Harbor plan. Under the plan, electing employees are eligible to participate after attaining age 18. Plan participants elect to contribute portions of their annual base compensation in any combination of pre‑tax deferrals or Roth post‑tax deferrals subject to the annual IRS limit. Employer contributions may be made from current or accumulated net profits. Participants may elect to contribute 1% to 50% of annual base compensation as a before tax contribution. Employees participating in the plan receive a 100% matching of their 401(k) plan contribution, up to 5% of salary. Effective January 1, 2015, employees are eligible for an additional 1% discretionary matching contribution contingent upon achievement of the Company’s annual financial goals and payable the first quarter of the following year. Employees hired on January 1, 2006 or thereafter will not participate in the defined benefit pension plan, but are eligible to participate in the employees’ savings plan. Employees can enter the savings plan on or after the first day of each month. The employee may enter into a salary deferral agreement at any time to select an alternative deferral amount or to elect not to defer in the Plan. If the employee does not elect an investment allocation, the plan administrator will select a retirement‑based portfolio according to the employee’s number of years until normal retirement age. The plan’s investment valuations are generally provided on a daily basis.

Post-Retirement Benefits

Post-Retirement Benefits	12 Months Ended
	Dec. 31, 2017
Post-Retirement Benefits
Post-Retirement Benefits	Note 18—Post‑Retirement Benefits At December 31, 2017, the Company and its subsidiary have two post-retirement health and life insurance benefit plans, South State Bank Retiree Medical Plan (the “retiree medical plan”) and the First Federal Retiree Welfare Plan (the “retiree welfare plan”). Retiree Medical Plan Under the retiree medical plan, post‑retirement health and life insurance benefits are provided to eligible employees, such benefits being limited to those employees of the Company eligible for early retirement under the pension plan on or before December 31, 1993, and former employees who are currently receiving benefits. The plan was unfunded at December 31, 2017, and the liability for future benefits has been recorded in the consolidated financial statements. The following sets forth the retiree medical plan’s funded status and amounts recognized in the Company’s accompanying consolidated financial statements: December 31, (Dollars in thousands) 2017 2016 2015 Change in benefit obligation: Benefit obligation at beginning of year $ 393 $ 422 $ 436 Interest cost 13 12 Actuarial loss 1 19 Benefits paid (45) Benefit obligation at end of year 337 393 422 Change in plan assets: Fair value of plan assets at beginning of year — — — Employer contribution 40 43 45 Benefits paid (45) Fair value of plan assets at end of year — — — Funded status $ $ $ (422) Weighted‑average assumptions used to determine benefit obligations and net periodic benefit cost are as follows: Year Ended December 31, 2017 2016 2015 Weighted-average assumptions used to determine benefit obligation at December 31: Discount rate 3.20 % 3.50 % 3.30 % Weighted-average assumptions used to determine net periodic benefit cost for years ended December 31: Discount rate 3.50 % 3.30 % 3.00 % Assumed health care cost trend rates at December 31: Health care cost trend rate assumed for next year 5.00 % 5.00 % 5.00 % Components of net periodic benefit cost and other amounts recognized in other comprehensive income are as follows: Year Ended December 31, (Dollars in thousands) 2017 2016 2015 Interest cost $ $ 13 $ 12 Recognized net actuarial loss 10 9 Net periodic benefit cost 23 21 Net loss 1 19 Amortization of loss (10) (9) Total amount recognized in other comprehensive income (9) 10 Total recognized in net periodic benefit cost and other comprehensive income $ $ 14 $ 31 The estimated net loss for the retiree medical plan that will be amortized from other comprehensive income into periodic benefit cost over the next fiscal year is $6,000. Assumed health care cost trend rates have a significant effect on the amounts reported for the post‑retirement benefit plan. An one-percentage point change in assumed health care cost trend rates would have the following effects at the end of 2017: One-Percentage Point (Dollars in thousands) Increase Decrease Effect on total of interest cost $ 1 $ (1) Effect on postretirement benefit obligation 19 (17) Estimated future benefit payments (including expected future service as appropriate): (Dollars in thousands) 2018 $ 38 2019 37 2020 36 2021 34 2022 33 2023-2027 131 $ 309 The Company expects to contribute approximately $38,000 to the retiree medical plan in 2018. Retiree Welfare Plan Under the retiree welfare plan, post-retirement health and life insurance benefits are provided to eligible employees, such benefits being limited to retired FFHI employees who are currently receiving benefits. The plan was unfunded at December 31, 2017, and the liability for future benefits has been recorded in the consolidated financial statements. The following sets forth the retiree welfare plan’s funded status and amounts recognized in the Company’s accompanying consolidated financial statements: December 31, (Dollars in thousands) 2017 2016 2015 Change in benefit obligation: Benefit obligation at beginning of year $ $ $ 2,331 Interest cost 77 Participants’ contributions — — — Actuarial (gain) loss (105) Benefits paid (233) Less: Federal subsidy on benefits paid 12 15 22 Benefit obligation at end of year 2,092 Change in plan assets: Fair value of plan assets at beginning of year — — — Employer contribution 233 Participants’ contributions — — — Benefits paid (233) Fair value of plan assets at end of year — — — Funded status $ $ $ (2,092) Weighted‑average assumptions used to determine benefit obligations and net periodic benefit cost are as follows: Year Ended December 31, 2017 2016 2015 Weighted-average assumptions used to determine benefit obligation at December 31: Discount rate 3.20 % 3.50 % 3.70 % Weighted-average assumptions used to determine net periodic benefit cost for years ended December 31: Discount rate 3.50 % 3.70 % 3.45 % Assumed health care cost trend rates at December 31: Health care cost trend rate assumed for next year 5.00 % 5.00 % 6.25 % Components of net periodic benefit cost and other amounts recognized in other comprehensive income are as follows: Year Ended December 31, (Dollars in thousands) 2017 2016 2015 Interest cost $ 81 $ 74 $ 77 Recognized net actuarial loss 147 95 115 Net periodic benefit cost 228 169 192 Net (gain) loss 126 546 (106) Amortization of loss (115) Total amount recognized in other comprehensive income 451 (221) Total recognized in net periodic benefit cost and other comprehensive income $ 207 $ 620 $ (29) The estimated net loss for the retiree welfare plan that will be amortized from other comprehensive income into periodic benefit cost over the next fiscal year is $154,000. Assumed health care cost trend rates have a significant effect on the amounts reported for the post‑retirement benefit plan. A one‑percentage point change in assumed health care cost trend rates would have the following effects at the end of 2017: One-Percentage Point (Dollars in thousands) Increase Decrease Effect on aggregate service and interest cost $ 6 $ (6) Effect on postretirement benefit obligation 166 (150) Estimated future benefit payments (including expected future service as appropriate): (Dollars in thousands) 2018 $ 241 2019 236 2020 230 2021 222 2022 213 2023-2027 894 $ 2,036 The Company expects to contribute approximately $241,000 to the retiree welfare plan in 2018.

Share-Based Compensation

Share-Based Compensation	12 Months Ended
	Dec. 31, 2017
Share-Based Compensation
Share-Based Compensation	Note 19—Share‑Based Compensation Compensation cost is recognized for stock options and restricted stock awards issued to employees. Compensation cost is measured as the fair value of these awards on their date of grant. A Black‑Scholes model is utilized to estimate the fair value of stock options, while the market price of the Company’s common stock at the date of grant is used as the fair value of restricted stock awards. Compensation cost is recognized over the required service period, generally defined as the vesting period for stock option awards and as the restriction period for restricted stock awards. For awards with graded vesting, compensation cost is recognized on a straight‑line basis over the requisite service period for the entire award. The Company’s 1999, 2004, and 2012 stock incentive programs are long‑term retention programs intended to attract, retain, and provide incentives for key employees and non‑employee directors in the form of incentive and non‑qualified stock options and restricted stock. Stock Options With the exception of non‑qualified stock options granted to directors under the 1999, 2004, and 2012 plans, which in some cases may be exercised at any time prior to expiration and in some other cases may be exercised at intervals less than a year following the grant date, incentive stock options granted under the plans may not be exercised in whole or in part within a year following the date of the grant, as these incentive stock options become exercisable in 25% increments pro ratably over the four-year period following the grant date. The options are granted at an exercise price at least equal to the fair value of the common stock at the date of grant and expire ten years from the date of grant. No options were granted under the 1999 plan after January 2, 2004, and the 1999 plan is closed other than for any options still unexercised and outstanding. No options were granted under the 2004 plan after January 26, 2012, and the 2004 plan is closed other than for any options still unexercised and outstanding. The 2012 plan is the only plan from which new share‑based compensation grants may be issued. It is the Company’s policy to grant options out of the 1,684,000 shares registered under the 2012 plan, of which no more than 817,476 shares can be granted as restricted stock or restricted stock units. Activity in the Company’s stock option plans is summarized in the following table. All information has been retroactively adjusted for stock dividends and stock splits. Year Ended December 31, 2017 2016 2015 Weighted Weighted Weighted Average Average Average Exercise Exercise Exercise Shares Price Shares Price Shares Price Outstanding at January 1, 2017 246,535 $ 42.53 285,405 $ 38.85 294,342 $ 35.91 Granted 33,634 91.23 25,682 63.79 26,430 61.74 Exercised (59,480) 33.03 (63,527) 34.70 (35,360) 31.51 Forfeited (2,000) 26.01 (1,025) 35.20 — — Expired — — — — (7) 31.72 Outstanding at December 31, 2017 218,689 52.75 246,535 42.53 285,405 38.85 Exercisable at December 31, 2017 148,702 41.62 185,758 36.33 227,130 34.48 Weighted-average fair value of options granted during the year $ 35.42 $ 25.19 $ 25.08 The aggregate intrinsic value of 218,689, 246,535, and 285,405 stock options outstanding at December 31, 2017, 2016, and 2015 was $7.7 million, $11.1 million, and $9.4 million, respectively. The aggregate intrinsic value of 148,702, 185,758, and 227,130 stock options exercisable at December 31, 2017, 2016, and 2015 was $6.8 million, $9.5 million, and $8.5 million, respectively. The aggregate intrinsic value of 59,480, 63,527, and 35,360 stock options exercised for the years ended December 31, 2017, 2016, and 2015 was $3.3 million, $2.5 million, and $1.3 million, respectively. Information pertaining to options outstanding at December 31, 2017, is as follows: Options Outstanding Options Exercisable Weighted Weighted Average Average Remaining Weighted Weighted Remaining Range of Number Contractual Average Number Average Contractual Exercise Prices Outstanding Life Exercise Price Outstanding Exercise Price Life $ 26.01 - $ 30.00 15,796 1.4 years $ 27.60 15,795 $ 27.60 $ 30.01 - $ 35.00 58,790 3.2 years $ 31.82 58,787 $ 31.82 $ 35.01 - $ 40.00 11,353 2.1 years $ 35.20 11,351 $ 35.20 $ 40.01 - $ 45.00 24,507 4.9 years $ 41.42 24,507 $ 41.42 $ 45.01 - $ 91.35 108,243 7.7 years $ 72.19 38,262 $ 64.50 218,689 5.4 years $ 52.75 148,702 $ 41.62 4.1 years The fair value of options is estimated at the date of grant using the Black‑Scholes option pricing model and expensed over the options’ vesting periods. The following weighted‑average assumptions were used in valuing options issued: Year ended December 31, 2015 Dividend yield % % % Expected life years years years Expected volatility % % % Risk-free interest rate % % % As of December 31, 2017, there was $1.4 million of total unrecognized compensation cost related to non‑vested stock option grants under the plans. The cost is expected to be recognized over a weighted‑average period of 1.13 years as of December 31, 2017. The total fair value of shares vested during the years ended December 31, 2017, 2016 and 2015 was approximately $578,000, $455,000 and $386,000, respectively. Compensation expense of $784,000, $545,000, and $483,000 was recorded in 2017, 2016, and 2015, respectively. Restricted Stock The Company from routinely also grants shares of restricted stock to key employees and non‑employee directors. These awards help align the interests of these employees and directors with the interests of the shareholders of the Company by providing economic value directly related to increases in the value of the Company’s stock. The value of the stock awarded is established as the fair market value of the stock at the time of the grant. The Company recognizes expense, equal to the total value of such awards, ratably over the vesting period of the stock grants. Grants to employees typically cliff vest after four years. Grants to non‑employee directors typically vest within a 12-month period. All restricted stock agreements are conditioned upon continued employment. Termination of employment prior to a vesting date, as described below, would terminate any interest in non‑vested shares. Prior to vesting of the shares, as long as employed by the Company, the key employees and non‑employee directors will have the right to vote such shares and to receive dividends paid with respect to such shares. All restricted shares will fully vest in the event of change in control of the Company or upon the death of the recipient. Non‑vested restricted stock for the year ended December 31, 2017 is summarized in the following table. All information has been retroactively adjusted for stock dividends and stock splits. Weighted- Average Grant-Date Restricted Stock Shares Fair Value Nonvested at January 1, 2017 183,014 $ 51.88 Granted 26,053 89.11 Vested (61,950) 47.94 Forfeited (4,425) 75.59 Nonvested at December 31, 2017 142,692 59.66 The Company granted 26,053, 44,301, and 45,605 shares for the years ended December 31, 2017, 2016, and 2015, respectively. The weighted‑average‑ grant‑date fair value of restricted shares granted in 2017, 2016, and 2015 was $89.11, $67.51, and $70.86, respectively. Compensation expense of $2.5 million, $2.7 million, and $2.5 million was recorded in 2017, 2016, and 2015, respectively. The vesting schedule of these shares as of December 31, 2017 is as follows: Shares 2017 37,713 2018 34,337 2019 51,940 2020 3,905 2021 3,405 Thereafter 11,392 142,692 As of December 31, 2017, there was $4.5 million of total unrecognized compensation cost related to non‑vested restricted stock granted under the plans. The cost is expected to be recognized over a weighted‑average period of 2.08 years as of December 31, 2017. The total fair value of shares vested during the years ended December 31, 2017, 2016 and 2015 was approximately $3.1 million, $3.2 million, and $2.1 million, respectively. Restricted Stock Units The Company from time‑to‑time also grants performance RSUs to key employees. These awards help align the interests of these employees with the interests of the shareholders of the Company by providing economic value directly related to the performance of the Company. Some performance RSU grants contain a three-year performance period while others contain a one-year performance period and a time vested requirement (generally four years from grant date). The Company communicates threshold, target, and maximum performance RSU awards and performance targets to the applicable key employees at the beginning of a performance period. Dividends are not paid in respect to the awards during the performance period. The value of the RSUs awarded is established as the fair market value of the stock at the time of the grant. The Company recognizes expenses on a straight‑line basis typically over the performance and vesting periods based upon the probable performance target that will be met. For the year ended December 31, 2017, the Company accrued for 97.1% of the RSUs granted, based on Management’s expectations of performance. Nonvested RSUs for the year ended December 31, 2017 is summarized in the following table. Weighted- Average Grant-Date Restricted Stock Units Shares Fair Value Nonvested at January 1, 2017 107,876 $ 66.37 Granted 77,301 89.43 Vested (39,672) 68.31 Forfeited (1,518) 78.68 LTIP Adjustment (3,951) 63.93 Nonvested at December 31, 2017 140,036 78.49 The Company granted 77,301, 68,842 and 39,672 shares for the year ended December 31, 2017, 2016 and 2015, respectively. The weighted‑average grant‑date fair value of restricted stock units granted in 2017 was $89.43. Compensation expense of $3.6 million, $2.9 million, and $2.8 million was recorded in 2017, 2016 and 2015, respectively. As of December 31, 2017, there was $5.7 million of total unrecognized compensation cost related to nonvested RSUs granted under the plan. This cost is expected to be recognized over a weighted‑average period of 2.09 years as of December 31, 2017. The total fair value of restricted stock units that vested during the years ended December 31, 2017, 2016 and 2015 was approximately $5.0 million, $4.3 million, and $1.9 million, respectively. Employee Stock Purchase Plan The Company has registered 363,825 shares of common stock in connection with the establishment of an Employee Stock Purchase Plan. The plan, which expires June 30, 2022, is available to all employees who have attained age 21 and completed six months of service. The Company currently has more than 89,000 shares available for issuances under the plan. The price at which common stock may be purchased for each quarterly option period is the lesser of 95% of the common stock’s fair value on either the first or last day of the quarter. The 2002 Employee Stock Purchase Plan permits eligible employees to purchase Company stock at a discounted price. Beginning July 1, 2009, the 15% discount was reduced to 5%. The Company recognized $43,000, $48,000 and $48,000 in share‑based compensation expense for the years ended December 31, 2017, 2016 and 2015, respectively.

Stock Repurchase Program

Stock Repurchase Program	12 Months Ended
	Dec. 31, 2017
Stock Repurchase Program
Stock Repurchase Program	Note 20—Stock Repurchase Program In February 2004, the Company’s Board of Directors authorized a repurchase program to acquire up to 250,000 shares of its outstanding common stock. In March 2017, the Board of Directors approved and reset the number of shares available to be repurchased under the 2004 stock repurchase program to 1,000,000. This program does not have a formal expiration date and superseded any previously announced programs that may have had remaining available shares for repurchase. Under the announced stock repurchase program, the Company did not repurchase any shares during the year ended December 31, 2017 and 32,900 shares at a cost of $2.1 million during the year ended December 31, 2016. The Company repurchased 60,000 shares at a cost of $4.3 million during the year ended December 31, 2015. Under other arrangements where directors or officers surrendered currently owned shares to the Company to acquire proceeds for exercising stock options or paying taxes on currently vesting restricted stock, the Company repurchased 61,125, 55,537, and 21,046 shares at a cost of $5.5 million, $3.9 million, and $1.4 million in 2017, 2016, and 2015, respectively.

Lease Commitments

Lease Commitments	12 Months Ended
	Dec. 31, 2017
Lease Commitments
Lease Commitments	Note 21—Lease Commitments The Company’s subsidiary was obligated at December 31, 2017, under certain noncancelable operating leases extending to the year 2038 pertaining to banking premises and equipment. Some of the leases provide for the payment of property taxes and insurance and contain various renewal options. The exercise of renewal options is, of course, dependent upon future events. Accordingly, the following summary does not reflect possible additional payments due if renewal options are exercised. Future minimum lease payments, by year and in the aggregate, under noncancelable operating leases with initial or remaining terms in excess of one year are as follows: (Dollars in thousands) Year Ended December 31, 2018 $ 6,301 2019 5,621 2020 5,164 2021 4,924 2022 4,447 Thereafter 18,508 $ 44,965 Total lease expense for the years ended December 31, 2017, 2016, and 2015 was $6.2 million, $ 5.7 million, and $6.6 million, respectively.

Contingent Liabilities

Contingent Liabilities	12 Months Ended
	Dec. 31, 2017
Contingent Liabilities
Contingent Liabilities	Note 22—Contingent Liabilities The Company has been named as defendant in various legal actions, arising from its normal business activities, in which damages in various amounts are claimed. The Company is also exposed to litigation risk related to the prior business activities of banks acquired through whole bank acquisitions as well as banks from which assets were acquired and liabilities assumed in FDIC‑assisted transactions. Although the amount of any ultimate liability with respect to such matters cannot be determined, in the opinion of management, any such liability will not have a material effect on the Company’s consolidated financial statements. The Company and its subsidiary are involved at times in certain litigation arising in the normal course of business. In the opinion of management as of December 31, 2017, there is no pending or threatened litigation that will have a material effect on the Company’s consolidated financial position or results of operations.

Related Party Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2017
Related Party Transactions
Related Party Transactions	Note 23—Related Party Transactions During 2017 and 2016, the Company’s banking subsidiary had loan and deposit relationships with certain related parties, principally directors and executive officers, their immediate families and their business interests. All of these relationships were in the ordinary course of business at rates and terms substantially consistent with similar transactions with unrelated parties. Loans outstanding to this group (including immediate families and business interests) totaled $7.8 million and $35.4 million at December 31, 2017 and 2016 respectively. During 2017, $14.2 million of new loans were made to this group while repayments of $14.5 million were received during the year. There were also additions to related party loans of $3.7 million due to the addition of new directors through acquisitions in 2017 and there were reductions to related party loans of $31.0 million due to the retirement of directors in 2017. Related party deposits totaled approximately $20.8 million and $19.3 million at December 31, 2017 and 2016, respectively.

Financial Instruments with Off-

Financial Instruments with Off-Balance Sheet Risk	12 Months Ended
	Dec. 31, 2017
Financial Instruments with Off-Balance Sheet Risk
Financial Instruments with Off-Balance Sheet Risk	Note 24—Financial Instruments with Off‑Balance Sheet Risk The Company’s subsidiary is a party to credit related financial instruments with off‑balance sheet risks in the normal course of business to meet the financing needs of their customers. These financial instruments include commitments to extend credit, standby letters of credit and financial guarantees. Such commitments involve, to varying degrees, elements of credit, interest rate, or liquidity risk in excess of the amounts recognized in the consolidated balance sheets. The contract amounts of these instruments express the extent of involvement the subsidiary has in particular classes of financial instruments. The subsidiary’s exposure to credit loss in the event of nonperformance by the other party to the financial instrument for commitments to extend credit, standby letters of credit, and financial guarantees is represented by the contractual amount of those instruments. The subsidiary uses the same credit policies in making commitments and conditional obligations as it does for on‑balance sheet instruments. At December 31, 2017 and 2016, the following financial instruments, whose contract amounts represent credit risk, were outstanding: December 31, (Dollars in thousands) 2017 2016 Commitments to extend credit $ 2,905,213 $ 1,670,097 Standby letters of credit and financial guarantees 30,444 16,930 $ 2,935,657 $ 1,687,027 Commitments to Extend Credit Commitments to extend credit are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Since many of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future liquidity requirements. The Bank evaluates each customer’s credit worthiness on a case‑by‑case basis. The amount of collateral obtained, if deemed necessary by the bank upon extension of credit, is based on management’s credit evaluation of the customer. Collateral held varies but may include accounts receivable, inventory, property, plant and equipment, and personal guarantees. Unfunded commitments under commercial lines‑of‑credit, revolving credit lines and overdraft protection agreements are commitments for possible future extensions of credit to existing customers. These lines‑of‑credit are uncollateralized and usually do not contain a specified maturity date and may not be drawn to the extent to which the banking subsidiary is committed. Standby Letters of Credit and Financial Guarantees Standby letters of credit and financial guarantees are conditional commitments issued by the banking subsidiary to guarantee the performance of a customer to a third party. Those letters of credit and guarantees are primarily issued to support public and private borrowing arrangements. Essentially, all standby letters of credit have expiration dates within one year. The credit risk involved in issuing letters of credit is essentially the same as that involved in extending loan facilities to customers. The amount of collateral obtained, if deemed necessary, is based on management’s credit evaluation of the customer.

Fair Value

Fair Value	12 Months Ended
	Dec. 31, 2017
Fair Value
Fair Value	Note 25—Fair Value FASB ASC 820, Fair Value Measurements and Disclosures , defines fair value, establishes a framework for measuring fair value under accounting principles generally accepted in the United States, and enhances disclosures about fair value measurements. FASB ASC 820 clarifies that fair value should be based on the assumptions market participants would use when pricing an asset or liability and establishes a fair value hierarchy that prioritizes the information used to develop those assumptions. The Company utilizes fair value measurements to record fair value adjustments to certain assets and liabilities and to determine fair value disclosures. Available for sale securities and derivative contracts are recorded at fair value on a recurring basis. Additionally, from time to time, the Company may be required to record at fair value other assets on a nonrecurring basis, such as loans held for sale, impaired loans, OREO, and certain other assets. These nonrecurring fair value adjustments typically involve application of lower of cost or market accounting or write‑downs of individual assets. FASB ASC 820 establishes a three‑tier fair value hierarchy which prioritizes the inputs used in measuring fair value as follows: Level 1 Observable inputs such as quoted prices in active markets; Level 2 Inputs, other than the quoted prices in active markets, that are observable either directly or indirectly; and Level 3 Unobservable inputs in which there is little or no market data, which require the reporting entity to develop its own assumptions. The following is a description of valuation methodologies used for assets recorded at fair value. Investment Securities Securities available for sale are valued on a recurring basis at quoted market prices where available. If quoted market prices are not available, fair values are based on quoted market prices of comparable securities. Level 1 securities include those traded on an active exchange, such as the New York Stock Exchange and The NASDAQ Stock Market, or U.S. Treasury securities that are traded by dealers or brokers in active over‑the‑counter markets and money market funds. Level 2 securities include mortgage‑backed securities and debentures issued by government sponsored entities, municipal bonds and corporate debt securities. Securities held to maturity are valued at quoted market prices or dealer quotes similar to securities available for sale. The carrying value of Federal Home Loan Bank stock approximates fair value based on the redemption provisions. Mortgage Loans Held for Sale Mortgage loans held for sale are carried at the fair market value. The fair values of mortgage loans held for sale are based on commitments on hand from investors within the secondary market for loans with similar characteristics. As such, the fair value adjustments for mortgage loans held for sale are recurring Level 2. Loans The Company does not record loans at fair value on a recurring basis. However, from time to time, a loan may be considered impaired and an allowance for loan losses may be established. Loans for which it is probable that payment of interest and principal will not be made in accordance with the contractual terms of the loan agreement are considered impaired. Once a loan is identified as individually impaired, management measures impairment using estimated fair value methodologies. The fair value of impaired loans is estimated using one of several methods, including collateral value, market value of similar debt, enterprise value, and liquidation value and discounted cash flows. Those impaired loans not requiring an allowance represent loans for which the fair value of the expected repayments or collateral exceed the recorded investments in such loans. At December 31, 2017, substantially all of the impaired loans were evaluated based on the fair value of the collateral because such loans were considered collateral dependent. Impaired loans, where an allowance is established based on the fair value of collateral require classification in the fair value hierarchy. When the fair value of the collateral is based on an observable market price or a current appraised value, the Company considers the impaired loan as nonrecurring Level 2. When an appraised value is not available or management determines the fair value of the collateral is further impaired below the appraised value and there is no observable market price, the Company considers the impaired loan as nonrecurring Level 3. Other Real Estate Owned (“OREO”) Typically OREO, consisting of properties obtained through foreclosure or in satisfaction of loans, is reported at fair value, determined on the basis of current appraisals, comparable sales, and other estimates of value obtained principally from independent sources, adjusted for estimated selling costs (Level 2). However, OREO is considered Level 3 in the fair value hierarchy because management has qualitatively applied a discount due to the size, supply of inventory, and the incremental discounts applied to the appraisals. Management also considers other factors, including changes in absorption rates, length of time the property has been on the market, and anticipated sales values, which have resulted in adjustments to the collateral value estimates indicated in certain appraisals. At the time of foreclosure, any excess of the loan balance over the fair value of the real estate held as collateral is treated as a charge against the allowance for loan losses. Gains or losses on sale and generally any subsequent adjustments to the value are recorded as a component of OREO expense. Derivative Financial Instruments Fair value is estimated using pricing models of derivatives with similar characteristics or discounted cash flow models where future floating cash flows are projected and discounted back; and accordingly, these derivatives are classified within Level 2 of the fair value hierarchy. See Note 28—Derivative Financial Instruments for additional information. Mortgage servicing rights (“MSRs”) The estimated fair value of MSRs is obtained through an independent derivatives dealer analysis of future cash flows. The evaluation utilizes assumptions market participants would use in determining fair value including market discount rates, prepayment speeds, servicing income, servicing costs, default rates and other market driven data, as well as the market’s perception of future interest rate movements. MSRs are classified as Level 3. Assets and Liabilities Recorded at Fair Value on a Recurring Basis The tables below present the recorded amount of assets and liabilities measured at fair value on a recurring basis. Quoted Prices In Active Significant Markets Other Significant for Identical Observable Unobservable Assets Inputs Inputs (Dollars in thousands) Fair Value (Level 1) (Level 2) (Level 3) December 31, 2017: Assets Derivative financial instruments $ 3,306 $ — $ 3,306 $ — Loans held for sale 70,890 — 70,890 — Securities available for sale: Government-sponsored entities debt 85,509 — 85,509 — State and municipal obligations 220,437 — 220,437 — Mortgage-backed securities 1,340,687 — 1,340,687 — Corporate securities 4,077 — 4,077 — Total securities available for sale 1,650,710 — 1,650,710 — Mortgage servicing rights 31,119 — — 31,119 $ 1,756,025 $ — $ 1,724,906 $ 31,119 Liabilities Derivative financial instruments $ 3,248 $ — $ 3,248 $ — December 31, 2016: Assets Derivative financial instruments $ 2,606 $ — $ 2,606 $ — Loans held for sale 50,572 — 50,572 — Securities available for sale: Government-sponsored entities debt 84,642 — 84,642 — State and municipal obligations 107,402 — 107,402 — Mortgage-backed securities 803,577 — 803,577 — Corporate securities 3,784 2,559 1,225 — Total securities available for sale 999,405 2,559 996,846 — Mortgage servicing rights 29,037 — — 29,037 $ 1,081,620 $ 2,559 $ 1,050,024 $ 29,037 Liabilities Derivative financial instruments $ 730 $ — $ 730 $ — There were no financial instruments transferred between Level 1 and Level 2 of the valuation hierarchy for the years ended December 31, 2017, and 2016. Changes in Level 3 Fair Value Measurements When a determination is made to classify a financial instrument within Level 3 of the valuation hierarchy, the determination is based upon the significance of the unobservable factors to the overall fair value measurement. However, since Level 3 financial instruments typically include, in addition to the unobservable or Level 3 components, observable components (that is, components that are actively quoted and can be validated to external sources), the gains and losses below include changes in fair value due in part to observable factors that are part of the valuation methodology. A reconciliation of the beginning and ending balances of Level 3 assets and liabilities recorded at fair value on a recurring basis for the years ended December 31, 2017 and 2016 is as follows: (Dollars in thousands) Assets Liabilities Fair value, January 1, 2017 $ 29,037 $ — Servicing assets that resulted from transfers of financial assets 6,439 — Changes in fair value due to valuation inputs or assumptions (595) — Changes in fair value due to decay (3,762) — Fair value , December 31, 2017 $ 31,119 $ — Fair value, January 1, 2016 $ 26,202 $ — Servicing assets that resulted from transfers of financial assets 6,428 — Changes in fair value due to valuation inputs or assumptions 560 — Changes in fair value due to decay (4,153) — Fair value, December 31, 2016 $ 29,037 $ — There were no unrealized losses included in accumulated other comprehensive income related to Level 3 financial assets and liabilities at December 31, 2017 or 2016. See Note 29 – Loan Servicing, Mortgage Obligation, and Loans Held for Sale for information about recurring Level 3 fair value measurements of mortgage servicing rights. Assets and Liabilities Recorded at Fair Value on a Nonrecurring Basis The tables below present the recorded amount of assets and liabilities measured at fair value on a nonrecurring basis: Quoted Prices In Active Significant Markets Other Significant for Identical Observable Unobservable Assets Inputs Inputs (Dollars in thousands) Fair Value (Level 1) (Level 2) (Level 3) December 31, 2017: OREO $ 11,203 $ — $ — $ 11,203 Non-acquired impaired loans 10,495 — — 10,495 December 31, 2016: OREO $ 18,316 $ — $ — $ 18,316 Non-acquired impaired loans 6,611 — — 6,611 Quantitative Information about Level 3 Fair Value Measurements Weighted Average December 31, December 31, Valuation Technique Unobservable Input 2017 2016 Nonrecurring measurements: Non-acquired impaired loans Discounted appraisals Collateral discounts 3 % 6 % OREO Discounted appraisals Collateral discounts and estimated costs to sell 21 % 18 % Fair Value of Financial Instruments The following methods and assumptions were used by the Company in estimating its fair value disclosures for financial instruments. In cases where quoted market prices are not available, fair values are based on estimates using present value or other valuation techniques. Those models are significantly affected by the assumptions used, including the discount rates and estimates of future cash flows. In that regard, the derived fair value estimates cannot be substantiated by comparison to independent markets and, in many cases, could not be realized in immediate settlement of the instrument. The use of different methodologies may have a material effect on the estimated fair value amounts. The fair value estimates presented herein are based on pertinent information available to management as of December 31, 2017 and 2016. Such amounts have not been revalued for purposes of these consolidated financial statements since those dates and, therefore, current estimates of fair value may differ significantly from the amounts presented herein. The following methods and assumptions were used to estimate the fair value of each class of financial instruments for which it is practicable to estimate that value: Cash and Cash Equivalents —The carrying amount is a reasonable estimate of fair value. Investment Securities —Securities held to maturity are valued at quoted market prices or dealer quotes. The carrying value of FHLB stock approximates fair value based on the redemption provisions. The carrying value of the Company’s investment in unconsolidated subsidiaries approximates fair value. See Note 3-Investment Securities for additional information, as well as page F-70 regarding fair value Loans held for sale — The fair values disclosed for loans held for sale are based on commitments from investors for loans with similar characteristics. Loans —For variable‑rate loans that reprice frequently and with no significant change in credit risk, fair values are based on carrying values. Fair values for certain mortgage loans (e.g., one‑to‑four family residential) and other consumer loans are estimated using discounted cash flow analyses based on the Company’s current rates offered for new loans of the same type, structure and credit quality. Fair values for other loans (e.g., commercial real estate and investment property mortgage loans, commercial and industrial loans) are estimated using discounted cash flow analyses, using interest rates currently being offered by the Company for loans with similar terms to borrowers of similar credit quality. Fair values for non‑performing loans are estimated using discounted cash flow analyses or underlying collateral values, where applicable. Deposit Liabilities —The fair values disclosed for demand deposits (e.g., interest and non‑interest bearing checking, passbook savings, and certain types of money market accounts) are, by definition, equal to the amount payable on demand at the reporting date (i.e., their carrying amounts). The carrying amounts of variable‑rate, fixed‑term money market accounts, and certificates of deposit approximate their fair values at the reporting date. Fair values for fixed‑rate certificates of deposit are estimated using a discounted cash flow calculation that applies interest rates currently being offered on certificates to a schedule of aggregated expected monthly maturities on time deposits. Federal Funds Purchased and Securities Sold Under Agreements to Repurchase —The carrying amount of federal funds purchased, borrowings under repurchase agreements, and other short‑term borrowings maturing within ninety days approximate their fair values. Other Borrowings —The fair value of other borrowings is estimated using discounted cash flow analysis on the Company’s current incremental borrowing rates for similar types of instruments. Accrued Interest —The carrying amounts of accrued interest approximate fair value. Derivative Financial Instruments —The fair value of derivative financial instruments (including interest rate swaps) is estimated using pricing models of derivatives with similar characteristics or discounted cash flow models where future floating cash flows are projected and discounted back . Commitments to Extend Credit, Standby Letters of Credit and Financial Guarantees —The fair values of commitments to extend credit are estimated using the fees currently charged to enter into similar agreements, taking into account the remaining terms of the agreements and the present creditworthiness of the counterparties. For fixed‑rate loan commitments, fair value also considers the difference between current levels of interest rates and the committed rates. The fair values of guarantees and letters of credit are based on fees currently charged for similar agreements or on the estimated costs to terminate them or otherwise settle the obligations with the counterparties at the reporting date. The estimated fair value, and related carrying amount, of the Company’s financial instruments are as follows: Carrying Fair (Dollars in thousands) Amount Value Level 1 Level 2 Level 3 December 31, 2017 Financial assets: Cash and cash equivalents $ 377,627 $ 377,627 $ 377,627 $ — $ — Investment securities 1,673,769 1,673,796 20,530 1,653,266 — Loans held for sale 70,890 70,890 — 70,890 — Loans, net of allowance for loan losses 10,575,417 10,724,264 — — 10,724,264 Accrued interest receivable 32,727 32,727 — 7,051 25,676 Mortgage servicing rights 31,119 31,119 — — 31,119 Interest rate swap - non-designated hedge 2,367 2,367 — 2,367 — Other derivative financial instruments (mortgage banking related) 939 939 — 939 — Financial liabilities: Deposits 11,532,766 10,796,380 — 10,796,380 — Federal funds purchased and securities sold under agreements to repurchase 286,857 286,857 — 286,857 — Other borrowings 216,385 219,421 — 219,421 — Accrued interest payable 2,789 2,789 — 2,789 — Interest rate swap - non-designated hedge 2,750 2,750 — 2,750 — Interest rate swap - cash flow hedge 246 246 — 246 — Other derivative financial instruments (mortgage banking related) 252 252 — 252 — Off balance sheet financial instruments: Commitments to extend credit — 41,319 — 41,319 — December 31, 2016 Financial assets: Cash and cash equivalents $ 374,448 $ 374,448 $ 374,448 $ — $ — Investment securities 1,014,981 1,015,137 12,041 1,003,096 — Loans held for sale 50,572 50,572 — 50,572 — Loans, net of allowance for loan losses 6,643,326 6,649,575 — — 6,649,575 Accrued interest receivable 18,618 18,618 — 3,642 14,976 Mortgage servicing rights 29,037 29,037 — — 29,037 Interest rate swap - non-designated hedge 203 203 — 203 — Other derivative financial instruments (mortgage banking related) 2,403 2,403 — 2,403 — Financial liabilities: Deposits 7,334,423 6,935,867 — 6,935,867 — Federal funds purchased and securities sold under agreements to repurchase 313,773 313,773 — 313,773 — Other borrowings 55,358 54,379 — 54,379 — Accrued interest payable 1,359 1,359 — 1,359 — Interest rate swap - non-designated hedge 181 181 — 181 — Interest rate swap - cash flow hedge — — Other derivative financial instruments (mortgage banking related) 51 51 — 51 — Off balance sheet financial instruments: Commitments to extend credit — 1,587 — 1,587 —

Regulatory Matters

Regulatory Matters	12 Months Ended
	Dec. 31, 2017
Capital Ratios
Regulatory Matters	Note 26—Regulatory Matters The Company is subject to regulations with respect to certain risk-based capital ratios. These risk-based capital ratios measure the relationship of capital to a combination of balance sheet and off-balance sheet risks. The values of both balance sheet and off-balance sheet items are adjusted based on the rules to reflect categorical credit risk. In addition to the risk-based capital ratios, the regulatory agencies have also established a leverage ratio for assessing capital adequacy. The leverage ratio is equal to Tier 1 capital divided by total consolidated on-balance sheet assets (minus amounts deducted from Tier 1 capital). The leverage ratio does not involve assigning risk weights to assets. In July 2013, the Federal Reserve announced its approval of a final rule to implement the regulatory capital reforms developed by the Basel Committee on Banking Supervision (“Basel III”), among other changes required by the Dodd-Frank Wall Street Reform and Consumer Protection Act. The new rules became effective January 1, 2015, subject to a phase-in period for certain aspects of the new rules. As applied to the Company and the Bank, the new rules include a new minimum ratio of common equity Tier 1 capital ("CET1") to risk-weighted assets of 4.5%. The new rules also raise the minimum required ratio of Tier 1 capital to risk-weighted assets from 4% to 6%. The minimum required leverage ratio under the new rules is 4%. The minimum required total capital to risk-weighted assets ratio remains at 8% under the new rules. In order to avoid restrictions on capital distributions and discretionary bonus payments to executives, under the new rules a covered banking organization will also be required to maintain a “capital conservation buffer” in addition to its minimum risk-based capital requirements. This buffer will be required to consist solely of common equity Tier 1, and the buffer will apply to all three risk-based measurements (CET1, Tier 1 capital and total capital). The capital conservation buffer will be phased in incrementally over time, beginning January 1, 2016 and becoming fully effective on January 1, 2019, and will ultimately consist of an additional amount of Tier 1 common equity equal to 2.5% of risk-weighted assets. The Bank is also subject to the regulatory framework for prompt corrective action, which identifies five capital categories for insured depository institutions (well capitalized, adequately capitalized, undercapitalized, significantly undercapitalized, and critically undercapitalized) and is based on specified thresholds for each of the three risk-based regulatory capital ratios (CET1, Tier 1 capital and total capital) and for the leverage ratio. The following table presents actual and required capital ratios as of December 31, 2017 for the Company and the Bank under the Basel III capital rules. The minimum required capital amounts presented include the minimum required capital levels as of December 31, 2017 based on the phase-in provisions of the Basel III Capital Rules and the minimum required capital levels as of January 1, 2019 when the Basel III Capital Rules have been fully phased-in. Capital levels required to be considered well capitalized are based upon prompt corrective action regulations, as amended to reflect the changes under the Basel III Capital Rules. Minimum Capital Minimum Capital Required to be Required - Basel III Required - Basel III Considered Well Actual Phase-In Schedule Fully Phased In Capitalized (Dollars in thousands) Amount Ratio Capital Amount Ratio Capital Amount Ratio Capital Amount Ratio December 31, 2017 Common equity Tier 1 to risk-weighted assets: Consolidated $ 1,273,547 11.59 % $ 631,811 5.75 % $ 769,162 7.00 % $ 714,221 6.50 % South State Bank (the Bank) 1,360,603 12.38 % 631,741 5.75 % 769,077 7.00 % 714,143 6.50 % Tier 1 capital to risk-weighted assets: Consolidated 1,384,433 12.60 % 796,632 7.25 % 933,982 8.50 % 879,042 8.00 % South State Bank (the Bank) 1,360,603 12.38 % 796,544 7.25 % 933,879 8.50 % 878,945 8.00 % Total capital to risk-weighted assets: Consolidated 1,432,843 13.04 % 1,016,392 9.25 % 1,153,742 10.50 % 1,098,802 10.00 % South State Bank (the Bank) 1,409,014 12.82 % 1,016,280 9.25 % 1,153,615 10.50 % 1,098,681 10.00 % Tier 1 capital to average assets (leverage ratio): Consolidated 1,384,433 10.36 % 534,460 4.00 % 534,460 4.00 % 668,075 5.00 % South State Bank (the Bank) 1,360,603 10.18 % 534,390 4.00 % 534,390 4.00 % 667,987 5.00 % December 31, 2016: Common equity Tier 1 to risk-weighted assets: Consolidated $ 788,544 11.66 % $ 346,730 5.125 % $ 473,582 7.00 % $ 439,755 6.50 % South State Bank (the Bank) 815,823 12.06 % 346,629 5.125 % 473,444 7.00 % 439,627 6.50 % Tier 1 capital to risk-weighted assets: Consolidated 841,266 12.43 % 448,212 6.625 % 575,064 8.50 % 541,237 8.00 % South State Bank (the Bank) 815,823 12.06 % 448,081 6.625 % 574,896 8.50 % 541,079 8.00 % Total capital to risk-weighted assets: Consolidated 881,957 13.04 % 583,521 8.625 % 710,374 10.50 % 676,546 10.00 % South State Bank (the Bank) 856,388 12.66 % 583,351 8.625 % 710,166 10.50 % 676,349 10.00 % Tier 1 capital to average assets (leverage ratio): Consolidated 841,266 9.88 % 340,612 4.00 % 340,612 4.00 % 425,765 5.00 % South State Bank (the Bank) 815,823 9.58 % 340,483 4.00 % 340,483 4.00 % 425,604 5.00 % As of December 31, 2017 and 2016, the capital ratios of the Company and the Bank were well in excess of the minimum regulatory requirements and exceeded the thresholds for the “well capitalized” regulatory classification.

Condensed Financial Statements

Condensed Financial Statements of Parent Company	12 Months Ended
	Dec. 31, 2017
Condensed Financial Statements of Parent Company
Condensed Financial Statements of Parent Company	Note 27—Condensed Financial Statements of Parent Company Financial information pertaining only to South State Corporation is as follows: Condensed Balance Sheets December 31, (Dollars in thousands) 2017 2016 ASSETS Cash $ 25,879 $ 27,775 Investment securities available for sale — 631 Investment in subsidiary 2,399,744 1,163,616 Other assets 1,111 1,235 Total assets $ 2,426,734 $ 1,193,257 LIABILITIES AND SHAREHOLDERS’ EQUITY Liabilities $ 117,813 $ 58,669 Shareholders’ equity 2,308,921 1,134,588 Total liabilities and shareholders’ equity $ 2,426,734 $ 1,193,257 Condensed Statements of Income Year Ended December 31, (Dollars in thousands) 2017 2016 2015 Income: Dividends from subsidiary $ 63,703 $ 36,328 $ 82,765 Operating income 580 177 38 Total income 64,283 36,505 82,803 Operating expenses 15,482 12,688 8,883 Income before income tax benefit and equity in undistributed earnings of subsidiaries 48,801 23,817 73,920 Applicable income tax benefit 5,053 4,270 2,975 Equity in undistributed earnings of subsidiary (excess distribution) 33,700 73,195 22,578 Net income 87,554 101,282 99,473 Preferred stock dividends — — — Net income available to common shareholders $ 87,554 $ 101,282 $ 99,473 Condensed Statements of Cash Flows Year Ended December 31, (Dollars in thousands) 2017 2016 2015 Cash flows from operating activities: Net income $ $ 101,282 $ 99,473 Adjustments to reconcile net income to net cash provided by operating activities: Depreciation and amortization 222 355 Share-based compensation 6,220 5,803 Gain on sale of securities available for sale (122) — Decrease (increase) in other assets 26 (296) (Decrease) increase in other liabilities 3,750 (1,648) Undistributed earnings of subsidiary (73,195) (22,578) Net cash provided by operating activities 38,183 81,109 Cash flows from investing activities: Proceeds from sales and calls of other investment securities 137 1,392 Payments for investments in subsidiaries — — (384) Net cash inflow from acquisitions 15,468 — — Net cash provided by investing activities 16,155 137 1,008 Cash flows from financing activities: Repayment of other borrowings (30,000) — (46,392) Common stock issuance 925 908 Common stock repurchased (5,981) (5,631) Dividends paid on common stock (29,285) (23,710) Stock options exercised 2,204 1,115 Net cash used in financing activities (32,137) (73,710) Net increase (decrease) in cash and cash equivalents 6,183 8,407 Cash and cash equivalents at beginning of period 21,592 13,185 Cash and cash equivalents at end of period $ $ 27,775 $ 21,592

Derivative Financial Instrument

Derivative Financial Instruments	12 Months Ended
	Dec. 31, 2017
Derivative Financial Instruments
Derivative Financial Instruments	Note 28—Derivative Financial Instruments The Company uses certain derivative instruments to meet the needs of its customers as well as to manage the interest rate risk associated with certain transactions. The following table summarizes the derivative financial instruments utilized by the Company: December 31, 2017 December 31, 2016 Balance Sheet Notional Estimated Fair Value Notional Estimated Fair Value (Dollars in thousands) Location Amount Gain Loss Amount Gain Loss Cash flow hedges of interest rate risk: Pay fixed rate swap with counterparty Other Liabilities $ 8,000 $ — $ 246 $ 8,000 $ — $ 498 Fair value hedge of interest rate risk: Pay fixed rate swap with counterparty Other Liabilities $ 2,824 $ — $ 92 $ — $ — $ — Not designated hedges of interest rate risk: Customer related interest rate contracts: Matched interest rate swaps with borrowers Other Assets and Other Liabilities $ 275,736 $ 1,899 $ 2,658 $ 13,860 $ 203 $ — Matched interest rate swaps with counterparty Other Assets and Other Liabilities $ 275,736 $ 468 $ — $ 13,860 $ — $ 181 Not designated hedges of interest rate risk - mortgage banking activities: Contracts used to hedge mortgage servicing rights Other Assets $ 94,000 $ — $ 252 $ 95,500 $ — $ 52 Forward sales commitments used to hedge mortgage pipeline Other Assets $ 89,317 $ 939 $ — $ 97,092 2,403 $ — Total derivatives $ 745,613 $ 3,306 $ 3,248 $ 228,312 $ 2,606 $ 731 Cash Flow Hedges of Interest Rate Risk The Company is exposed to interest rate risk in the course of its business operations and manages a portion of this risk through the use of derivative financial instruments, in the form of interest rate swaps. The Company accounts for its interest rate swap that is classified as a cash flow hedge in accordance with FASB ASC 815, Derivatives and Hedging , which requires that all derivatives be recognized as assets or liabilities on the balance sheet at fair value. For more information regarding the fair value of the Company’s derivative financial instruments, see Note 25 to these financial statements. The Company utilizes the interest rate swap agreement to essentially convert a portion of its variable‑rate debt to a fixed rate (cash flow hedge). For derivatives designated as hedging exposure to variable cash flows of a forecasted transaction (cash flow hedge), the effective portion of the derivative’s gain or loss is initially reported as a component of other comprehensive income and subsequently reclassified into earnings when the forecasted transaction affects earnings or when the hedge is terminated. The ineffective portion of the gain or loss is reported in earnings immediately. For derivatives that are not designated as hedging instruments, changes in the fair value of the derivatives are recognized in earnings immediately. When applying hedge accounting for derivatives, the Company establishes a method for assessing the effectiveness of the hedging derivative and a measurement approach for determining the ineffective aspect of the hedge upon the inception of the hedge. During 2009, the Company entered into a forward starting interest rate swap agreement with a notional amount of $8.0 million to manage interest rate risk due to periodic rate resets on its junior subordinated debt issued by SCBT Capital Trust II, an unconsolidated subsidiary of the Company established for the purpose of issuing trust preferred securities. The Company hedges the variable rate cash flows of subordinated debt against future interest rate increases by using an interest rate swap to effectively fix the rate on the debt beginning on June 15, 2010, at which time the debt contractually converted from a fixed interest rate to a variable interest rate. This hedge expires on June 15, 2019. The notional amount on which the interest payments are based will not be exchanged. This derivative contract calls for the Company to pay a fixed rate of 4.06% on $8.0 million notional amount and receive a variable rate of three-month LIBOR on the $8.0 million notional amount. The Company recognized an after‑tax unrealized gain on its cash flow hedge in other comprehensive income for the year ended December 31, 2017 of $156,000, compared to a $136,000 gain for the year ended December 31, 2016. The Company recognized a $246,000 and a $498,000 cash flow hedge liability in other liabilities on the balance sheet at December 31, 2017 and 2016, respectively. There was no ineffectiveness in the cash flow hedge during the years ended December 31, 2017 and 2016. Credit risk related to the derivative arises when amounts receivable from the counterparty (derivative dealer) exceed those payable. The Company controls the risk of loss by only transacting with derivative dealers that are national market makers whose credit ratings are strong. Each party to the interest rate swap is required to provide collateral in the form of cash or securities to the counterparty when the counterparty’s exposure to a mark‑to‑market replacement value exceeds certain negotiated limits. These limits are typically based on current credit ratings and vary with ratings changes. As of December 31, 2017 and 2016, respectively, the Company provided $300,000 and $550,000 collateral, which is included in cash and cash equivalents on the balance sheet as interest‑bearing deposits with banks. Also, the Company has a netting agreement with the counterparty. Balance Sheet Fair Value Hedge The Company maintains one loan swap, with an aggregate notional amount of $2.8 million at December 31, 2017, accounted for as fair value hedges in accordance with ASC 815, Derivatives and Hedgin g. This derivative protects the company from interest rate risk caused by changes in the LIBOR curve in relation to a certain designated fixed rate loan. The derivative converts the fixed rate loan to a floating rate. Settlement occurs in any given period where there is a difference in the stated fixed rate and variable rate. The fair value of this hedge is recorded in other assets and in other liabilities. All changes in fair value are recorded through earnings as noninterest income. There was no gain or loss recorded on this derivative in 2017 or 2016. Non-designated Hedges of Interest Rate Risk Customer Swaps The Company maintains interest rate swap contracts with customers that are classified as non-designated hedges and are not speculative in nature. These agreements are designed to convert customer’s variable rate loans with the Company to fixed rate. These interest rate swaps are executed with loan customers to facilitate a respective risk management strategy and allow the customer to pay a fixed rate of interest to the Company. These interest rate swaps are simultaneously hedged by executing offsetting interest rate swaps with unrelated market counterparties to minimize the net risk exposure to the Company resulting from the transactions and allow the Company to receive a variable rate of interest. The interest rate swaps pay and receive interest based on a floating rate based on one month LIBOR plus credit spread, with payments being calculated on the notional amount. The interest rate swaps are settled monthly with varying maturities. As the interest rate swaps associated with this program do not meet the strict hedge accounting requirements, changes in the fair value of both the customer swaps and the offsetting swaps are recognized directly in earnings. As of December 31, 2017, the interest rate swaps had an aggregate notional amount of approximately $551.5 million and the fair value of the interest rate swap derivatives are recorded in other assets and other liabilities. All changes in fair value are recorded through earnings as noninterest income. For the year ended December 31, 2017 and 2016, the Company recorded a gain of $1,000 and $22,000, respectively related to the change in the fair value of these interest rate swap derivatives. Mortgage Banking The Company also has derivatives contracts that were not classified as accounting hedges to mitigate risks related to its mortgage banking activities. These instruments may include financial forwards, futures contracts, and options written and purchased, which are used to hedge mortgage servicing rights; while forward sales commitments are typically used to hedge the mortgage pipeline. Such instruments derive their cash flows, and therefore their values, by reference to an underlying instrument, index or referenced interest rate. The Company does not elect hedge accounting treatment for any of these derivative instruments and as a result, changes in fair value of the instruments (both gains and losses) are recorded in the Company’s consolidated statements of income in mortgage banking income. Mortgage Servicing Rights Derivatives contracts related to mortgage servicing rights are used to help offset changes in fair value and are written in amounts referred to as notional amounts. Notional amounts provide a basis for calculating payments between counterparties but do not represent amounts to be exchanged between the parties, and are not a measure of financial risk. On December 31, 2017 and 2016, the Company had derivative financial instruments outstanding with notional amounts totaling $94.0 million and $ 95.5 million related to mortgage servicing rights, respectively. The estimated net fair value of the open contracts related to the mortgage servicing rights was recorded as a loss of $252,000 and $52,000, respectively. The following table presents the Company’s notional value of forward sale commitments and the fair value of those obligations along with the fair value of the mortgage pipeline. December 31, (Dollars in thousands) 2017 2016 Mortgage loan pipeline $ 71,477 $ 85,445 Expected closures 53,608 64,083 Fair value of mortgage loan pipeline commitments 920 1,037 Forward sales commitments 89,317 97,092 Fair value of forward commitments 19 1,366

Loan Servicing, Mortgage Origin

Loan Servicing, Mortgage Origination, and Loans Held for Sale	12 Months Ended
	Dec. 31, 2017
Loan Servicing, Mortgage Origination, and Loans Held for Sale
Loan Servicing, Mortgage Origination, and Loans Held for Sale	Note 29—Loan Servicing, Mortgage Origination, and Loans Held for Sale The portfolio of residential mortgages serviced for others, which are not included in the accompanying balance sheets, was $2.9 billion and $2.7 billion at December 31, 2017 and 2016, respectively. Servicing loans for others generally consists of collecting mortgage payments, maintaining escrow accounts and disbursing payments to investors. The amount of contractually specified servicing fees earned by the Company during the year ended December 31, 2017 and 2016 was $7.2 million and $6.8 million, respectively. Servicing fees are recorded in mortgage banking income in the Company’s consolidated statements of income. At December 31, 2017 and 2016, MSRs were $31.1 million and $29.0 million, respectively, on the Company’s consolidated balance sheet. MSRs are recorded at fair value with changes in fair value recorded as a component of mortgage banking income in the Consolidated Statements of Income. The market value adjustments related to MSRs recorded in mortgage banking income for the years ended December 31, 2017 and 2016 were a loss of $595,000 and a gain of $560,000, respectively. The Company has used various free standing derivative instruments to mitigate the income statement effect of changes in fair value due to changes in market value adjustments and to changes in valuation inputs and assumptions related to MSRs. The following table presents the changes in the fair value of MSRs and its offsetting hedge. Year Ended December 31, (Dollars in thousands) 2017 2016 2015 Increase (decrease) in fair value of MSRs $ $ 560 $ 1,015 Decay of MSRs (4,153) (3,371) Gain (loss) related to derivatives (402) 751 Net effect on statements of income $ $ (3,995) $ (1,605) The fair value of MSRs is highly sensitive to changes in assumptions and fair value is determined by estimating the present value of the asset’s future cash flows utilizing market‑based prepayment rates, discount rates and other assumptions validated through comparison to trade information, industry surveys and with the use of independent third party appraisals. Changes in prepayment speed assumptions have the most significant impact on the fair value of MSRs. Generally, as interest rates decline, mortgage loan prepayments accelerate due to increased refinance activity, which results in a decrease in the fair value of the MSR. Measurement of fair value is limited to the conditions existing and the assumptions utilized as of a particular point in time, and those assumptions may not be appropriate if they are applied at a different time. See Note 25 — Fair Value for additional information regarding fair value. The characteristics and sensitivity analysis of the MSR are included in the following table. December 31, (Dollars in thousands) 2017 2016 Composition of residential loans serviced for others Fixed-rate mortgage loans 99.7 % 99.6 % Adjustable-rate mortgage loans 0.3 % 0.4 % Total 100.0 % 100.0 % Weighted average life years 7.70 years Constant Prepayment rate (CPR) 7.7 % 7.7 % Weighted average discount rate 9.6 % 9.8 % Effect on fair value due to change in interest rates 25 basis point increase $ 1,485 $ 1,399 50 basis point increase 2,664 2,557 25 basis point decrease (1,850) (1,713) 50 basis point decrease (4,014) (3,670) The sensitivity calculations above are hypothetical and should not be considered to be predictive of future performance. Changes in fair value based on adverse changes in assumptions generally cannot be extrapolated because the relationship of the changes in assumptions to fair value may not be linear. Also, in this table, the effects of an adverse variation in a particular assumption on the fair value of the MSRs is calculated without changing any other assumptions, while in reality, changes in one factor may result in changing another, which may magnify or contract the effect of the change. Custodial escrow balances maintained in connection with the loan servicing were $15.3 million and $13.2 million at December 31, 2017 and 2016. Whole loan sales were $746.9 million and $745.7 million for the years ended December 31, 2017 and 2016, of which $565.0 million and $605.6 million or 75.7% and 81.2% were sold with the servicing rights retained by the Company. Loans held for sale have historically been comprised of residential mortgage loans awaiting sale in the secondary market, which generally settle in 15 to 45 days. At December 31, 2017, loans held for sale were $70.9 million which included $25.4 million in commercial loans (Shared National Credits) which were acquired in the Park Sterling acquisition that were sold in the first quarter of 2018, resulting in no gain or loss. Loans held for sale consisting of residential mortgage loans to be sold in the secondary market, were $45.5 million at December 31, 2017, compared with $50.6 million at December 31, 2016.

Investments in Qualified Afford

Investments in Qualified Affordable Housing Projects	12 Months Ended
	Dec. 31, 2017
Investment In Qualified Affordable Housing Projects.
Investment in Qualified Affordable Housing Projects	Note 30 – Investments in Qualified Affordable Housing Projects The Company has investments in qualified affordable housing projects (“QAHPs”) that provide low income housing tax credits and operating loss benefits over an extended period. The tax credits and the operating loss tax benefits that are generated by each of the properties are expected to exceed the total value of the investment made by the Company. For the year ended December 31, 2017, tax credits and other tax benefits of $3.3 million and amortization of $3.0 million were recorded. For the year ended December 31, 2016, the Company recorded tax credits and other tax benefits of $2.4 million and amortization of $1.5 million. At December 31, 2017 and 2016, the Company’s carrying value of QAHPs was $36.6 million and $26.8 million, respectively, with an original investment of $46.9 million. The Company has $18.5 million and $14.7 million in remaining funding obligations related to these QAHPs recorded in liabilities at December 31, 2017 and 2016, respectively. None of the original investment will be repaid. The investment in QAHPs is being accounted for using the equity method.

Subsequent Events

Subsequent Events	12 Months Ended
	Dec. 31, 2017
Subsequent Events
Subsequent Events	Note 31 – Subsequent Events The Company has evaluated subsequent events for accounting and disclosure purposes through the date the financial statements are issued and has determined that there is no disclosure necessary.

Summary of Significant Accoun40

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2017
Summary of Significant Accounting Policies
Nature of operations	Nature of Operations South State Corporation (the “Company”) is a bank holding company whose principal activity is the ownership and management of its wholly owned subsidiary, South State Bank (the “Bank”). The Bank also operates Minis & Co., Inc. and South State Advisory (formerly First Southeast 401k Fiduciaries), both wholly-owned registered investment advisors. The Bank provides general banking services within 29 counties in South Carolina, 9 counties in North Carolina, 19 counties in Georgia and four counties in Virginia. The accounting and reporting policies of the Company and its consolidated subsidiary conform to accounting principles generally accepted in the United States of America (‘U.S. GAAP”). There are thirteen unconsolidated subsidiaries of the Company that were established for the purpose of issuing in the aggregate $115.0 million of trust preferred securities. The thirteen capital trusts include the following: SCBT Capital Trust I at $12.0 million; SCBT Capital Trust II at $8.0 million; SCBT Capital Trust III at $20.0 million; TSB Statutory Trust I at $3.0 million; SAVB Capital Trust I at $6.0 million; SAVB Capital Trust II at $4.0 million; Southeastern Bank Financial Statutory Trust I at $10.0 million; Southeastern Bank Financial Statutory Trust II at $10.0 million; Provident Community Bancshares Capital Trust I at $4.0 million; FCRV Statutory Trust I at $5.0 million; Community Capital Statutory Trust I at $10.0 million; CSBC Statutory Trust I at $15.0 million and Provident Community Bancshares Capital Trust II at $8.0 million. Unless otherwise mentioned or unless the context requires otherwise, references herein to "South State," the "Company" "we," "us," "our" or similar references mean South State Corporation and its consolidated subsidiary. References to the “Bank” means South State Bank, a South Carolina banking corporation.
Basis of Consolidation	Basis of Consolidation The consolidated financial statements include the accounts of the Company and other entities in which it has a controlling financial interest. All significant intercompany balances and transactions have been eliminated in consolidation. Assets held by the Company in trust are not assets of the Company and are not included in the accompanying consolidated financial statements.
Segments	Segments The Company, through its subsidiary, provides a broad range of financial services to individuals and companies in South Carolina, North Carolina, Georgia and Virginia. These services include demand, time and savings deposits; lending and credit card servicing; ATM processing; mortgage banking services; and wealth management and trust services. While the Company’s decision makers monitor the revenue streams of the various financial products and services, operations are managed and financial performance is evaluated on an organization‑wide basis. Accordingly, the Company’s banking and finance operations are not considered by management to constitute more than one reportable operating segment.
Use of Estimates	Use of Estimates The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the consolidated balance sheet and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Material estimates that are particularly susceptible to significant change in the near term relate to the determination of the allowance for loan losses, fair value of financial instruments, fair values of assets and liabilities acquired in business combinations, loss estimates related to loans and other real estate acquired, evaluating other‑than‑temporary impairment of investment securities, goodwill impairment tests and valuation of deferred tax assets In connection with the determination of the allowance for loan losses, management has identified specific loans as well as adopted a policy of providing amounts for loan valuation purposes which are not identified with any specific loan but are derived from actual loss experience ratios, loan types, loan volume, economic conditions and industry standards. Management believes that the allowance for loan losses is adequate. While management uses available information to recognize losses on loans, future additions to the allowance may be necessary based on changes in economic conditions. In addition, regulatory agencies, as an integral part of the examination process, periodically review the banking subsidiary’s allowance for loan losses. Such agencies may require additions to the allowance based on their judgments about information available to them at the time of their examination.
Concentrations of Credit Risk	Concentrations of Credit Risk The Company’s subsidiary grants agribusiness, commercial, and residential loans to customers throughout South Carolina, North Carolina, Virginia and Georgia. Although the subsidiary has a diversified loan portfolio, a substantial portion of their borrowers’ abilities to honor their contracts is dependent upon economic conditions within South Carolina, North Carolina, Georgia and the surrounding regions. The Company considers concentrations of credit to exist when, pursuant to regulatory guidelines, the amounts loaned to a multiple number of borrowers engaged in similar business activities which would cause them to be similarly impacted by general economic conditions represents 25% of total risk‑based capital, or $358.2 million at December 31, 2017. Based on this criteria, the Company had four such credit concentrations for non‑acquired and acquired non‑credit impaired loans at December 31, 2017, including $524.1 million of loans to lessors of residential buildings (investment properties and multi-family), $1.3 billion of loans to lessors of nonresidential buildings (except mini‑warehouses) $358.6 million of loans to religious organizations, and $545.8 million of loans for construction.
Cash and Cash Equivalents	Cash and Cash Equivalents For the purpose of presentation in the consolidated statements of cash flows, cash and cash equivalents include cash on hand, cash items in process of collection, amounts due from banks, interest bearing deposits with banks, purchases of securities under agreements to resell, and federal funds sold. Due from bank balances are maintained in other financial institutions. Federal funds sold are generally purchased and sold for one-day periods, but may, from time to time, have longer terms. The Company enters into purchases of securities under agreements to resell substantially identical securities typically for the purpose of obtaining securities on a short‑term basis for collateralizing certain customer deposit relationships. Securities purchased under agreements to resell at December 31, 2017 and 2016 consisted of U.S. government‑sponsored entities and agency mortgage‑backed securities. It is the Company’s policy to take possession of securities purchased under agreements to resell. The securities are delivered into the Company’s account maintained by a third‑party custodian designated by the Company under a written custodial agreement that explicitly recognizes the Company’s interest in the securities. The Company monitors the market value of the underlying securities, including accrued interest, which collateralizes the related receivable on agreements to resell. At December 31, 2017, these agreements were considered to be cash equivalents with maturities of three months or less.
Investment Securities	Investment Securities Debt securities that management has the positive intent and ability to hold to maturity are classified as “held to maturity” and carried at amortized cost. Securities not classified as held to maturity, including equity securities with readily determinable fair values, are classified as “available for sale” and carried at fair value with unrealized gains and losses excluded from earnings and reported in other comprehensive income. Purchase premiums and discounts are recognized in interest income using methods approximating the interest method over the terms of the securities. Declines in the fair value of held‑to‑maturity and available‑for‑sale securities below their cost that are deemed to be other than temporary are reflected in earnings as realized losses. Gains and losses realized on sales of securities available for sale are determined using the specific identification method. The Company evaluates securities for other‑than‑temporary impairment (“OTTI”) at least on a quarterly basis, and more frequently when economic or market concerns warrant such evaluation. In estimating OTTI losses, management considers: (1) the financial condition and near-term prospects of the issuer, (2) the outlook for receiving the contractual cash flows of the investments, (3) the length of time and the extent to which the fair value has been less than cost, (4) the intent and ability of the Company to retain its investment in the issuer for a period of time sufficient to allow for any anticipated recovery in fair value or for a debt security whether it is more‑likely‑than‑not that the Company will be required to sell the debt security prior to recovering its fair value, and (5) the anticipated outlook for changes in the general level of interest rates. (see Note 3—Investment Securities). Other investments include stock acquired for regulatory purposes and investments in unconsolidated subsidiaries. Stock acquired for regulatory purposes include Federal Home Loan Bank of Atlanta (“FHLB”) stock. These securities do not have a readily determinable fair value because their ownership is restricted and they lack a market for trading. As a result, these securities are carried at cost and are periodically evaluated for impairment. Investments in unconsolidated subsidiaries represent a minority investment in SCBT Capital Trust I, SCBT Capital Trust II, SCBT Capital Trust III, TSB Statutory Trust I, SAVB Capital Trust I, SAVB Capital Trust II, Southeastern Bank Financial Statutory Trust I, Southeastern Bank Financial Statutory Trust II, Provident Community Bancshares Capital Trust I, FCRV Statutory Trust I, Community Capital Statutory Trust I, CSBC Statutory Trust I and Provident Community Bancshares Capital Trust II. These investments are recorded at cost and the Company receives quarterly dividend payments on these investments.
Loans Held for Sale	Loans Held for Sale Loans originated and intended for sale are carried at the estimated fair value in the aggregate. Estimated fair value is determined on the basis of existing forward commitments, or the current market value of similar loans. Net unrealized losses, if any, are recognized through a valuation allowance by charges to income. Loans held‑for‑sale are sold to investors either under guaranteed delivery or with the best effort intent and ability to sell loans as long as they meet the underwriting standards of the potential investor.
Loans	Loans Loans that management has originated and has the intent and ability to hold for the foreseeable future or until maturity or pay‑off generally are reported at their unpaid principal balances, less unearned income and net of any deferred loan fees and costs. Unearned income on installment loans is recognized as income over the terms of the loans by methods that generally approximate the interest method. Interest on other loans is calculated by using the simple interest method on daily balances of the principal amount outstanding. We place non‑acquired loans and acquired non-credit impaired loans on nonaccrual once reasonable doubt exists about the collectability of all principal and interest due. Generally, this occurs when principal or interest is 90 days or more past due, unless the loan is well secured and in the process of collection. A loan is considered impaired when, in management’s judgment, based on current information and events, it is probable that the Company will be unable to collect the scheduled payments of principal and interest when due according to the contractual terms of the loan agreement. Factors considered by management in determining impairment include payment status, collateral value, and the probability of collecting scheduled principal and interest payments when due. Management determines when loans become impaired through its normal loan administration and review functions. Loans identified as nonaccrual are potentially impaired loans. Loans that experience insignificant payment delays and payment shortfalls generally are not classified as impaired, provided that management expects to collect all amounts due, including interest accrued at the contractual interest rate for the period of delay. Impairment is measured on a loan by loan basis for commercial and construction loans by either the present value of expected future cash flows discounted at the loan’s effective interest rate, the loan’s obtainable market price, or the fair value of the collateral if the loan is collateral dependent. Interest income recognition on non‑acquired impaired loans is discontinued when the loans meet the criteria for nonaccrual status described above. Large groups of smaller balance homogeneous non‑acquired loans are collectively evaluated for loss and a general reserve is established accordingly. Acquired credit impaired loans are initially recorded at a discount to recognize the difference in the fair value of the loans and the contractual balance. The discount includes a component to recognize the absolute difference between the contractual value and the amount expected to be collected (total cash flow) as well as a component to recognize the net present value of that future amount to be collected. The net present value component is accretable into income, and therefore generates a yield on all acquired credit impaired loans, regardless of past due status. Therefore, acquired credit impaired loans are considered to be accruing loans. Acquired credit impaired loans that are greater than 90 days past due are placed into the greater than 90 days past due and still accruing category when analyzing the aging status of the loan portfolio. See Note 4—Loans and Allowance for Loan Losses for further detail.
Troubled Debt Restructurings ("TDRs")	Troubled Debt Restructurings (“TDRs”) The Bank designates loan modifications as TDRs when, for economic or legal reasons related to the borrower’s financial difficulties, it grants a concession to the borrower that it would not otherwise consider. Loans on nonaccrual status at the date of modification are initially classified as nonaccrual TDRs. Loans on accruing status at the date of modification are initially classified as accruing TDRs at the date of modification, if the note is reasonably assured of repayment and performance is in accordance with its modified terms. Such loans may be designated as nonaccrual loans subsequent to the modification date if reasonable doubt exists as to the collection of interest or principal under the restructuring agreement. Nonaccrual TDRs are returned to accruing status when there is economic substance to the restructuring, there is well documented credit evaluation of the borrower’s financial condition, the remaining balance is reasonably assured of repayment in accordance with its modified terms, and the borrower has demonstrated sustained repayment performance in accordance with the modified terms for a reasonable period of time (generally a minimum of six months).
Allowance for Loan Losses	Allowance for Loan Losses The allowance for loan losses is established for estimated loan losses through a provision for loan losses charged to earnings. Loan losses are charged against the allowance when management believes that the collectability of the principal is unlikely. Subsequent recoveries, if any, are credited to the allowance. The allowance for loan losses is evaluated on a regular basis by management and is based upon management’s periodic review of the collectability of the loans in light of historical experience, the nature and volume of the loan portfolio, adverse situations that may affect the borrower’s ability to repay, estimated value of any underlying collateral, and prevailing economic conditions. This evaluation is inherently subjective, as it requires estimates that are susceptible to significant revision as more information becomes available. The allowance consists of general and specific reserves. The general reserves are determined, for loans not identified as impaired, by applying loss percentages to the portfolio that are based on historical loss experience and management’s evaluation and “risk grading” of the loan portfolio. Additionally, the general economic and business conditions affecting key lending areas, credit quality trends, collateral values, loan volumes and concentrations, seasoning of the loan portfolio, the findings of internal and external credit reviews and results from external bank regulatory examinations are included in this evaluation. The specific reserves are determined, for impaired loans, on a loan‑by‑loan basis based on management’s evaluation of the Company’s exposure for each credit, given the current payment status of the loan and the value of any underlying collateral. Management evaluates nonaccrual loans and TDRs regardless of accrual status to determine whether or not they are impaired. For such loans that are classified as impaired, an allowance is established when the discounted cash flows (or collateral value or observable market price) of the impaired loan is lower than the carrying value of that loan. The Company requires updated appraisals on at least an annual basis for impaired loans that are collateral dependent. Generally, the need for specific reserve is evaluated on impaired loans, and once a specific reserve is established for a loan, a charge off of that amount occurs in the quarter subsequent to the establishment of the specific reserve. Although management uses available information to estimate losses on loans, because of uncertainties associated with local, regional, and national economic conditions, collateral values, and future cash flows on impaired loans, and subjection of the model to the review of regulatory authorities, it is reasonably possible that a material change could occur in the allowance for loan losses in the near term. However, the amount of the change that is reasonably possible cannot be estimated.
Other Real Estate Owned	Other Real Estate Owned Other real estate owned (“OREO”), consisting of properties obtained through foreclosure or through a deed in lieu of foreclosure in satisfaction of loans and property originally acquired for further branch expansion (formerly classified as premises and equipment), is reported at the lower of cost or fair value, determined on the basis of current valuations obtained principally from independent sources, adjusted for estimated selling costs. At the time of foreclosure or initial possession of collateral, any excess of the loan balance over the fair value of the real estate held as collateral is treated as a charge against the allowance for loan losses. Subsequent declines in the fair value of OREO below the new cost basis are recorded through valuation adjustments. Significant judgments and complex estimates are required in estimating the fair value of other real estate, and the period of time within which such estimates can be considered current is significantly shortened during periods of market volatility. In response to market conditions and other economic factors, management may utilize liquidation sales as part of its problem asset disposition strategy. As a result of the significant judgments required in estimating fair value and the variables involved in different methods of disposition, the net proceeds realized from sales transactions could differ significantly from the valuations used to determine the fair value of OREO. Management reviews the value of OREO each quarter and adjusts the values as appropriate. Revenue and expenses from OREO operations as well as gains or losses on sales and any subsequent adjustments to the value are recorded as OREO expense and loan related expense, a component of non‑interest expense.
Business Combinations and Method of Accounting for Loans Acquired	Business Combinations and Method of Accounting for Loans Acquired The Company accounts for its acquisitions under Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“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 because the fair value of the loans acquired incorporates assumptions regarding credit risk. Loans acquired are recorded at fair value in accordance with the fair value methodology prescribed in FASB ASC Topic 820, Fair Value Measurements and Disclosures . 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. Acquired credit‑impaired loans are accounted for under the accounting guidance for loans and debt securities acquired with deteriorated credit quality, found in FASB ASC Topic 310‑30, Receivables—Loans and Debt Securities Acquired with Deteriorated Credit Quality , and initially measured at fair value, which includes estimated future credit losses expected to be incurred over the life of the loans. Loans acquired in business combinations with evidence of credit deterioration since origination and for which it is probable that all contractually required payments will not be collected are considered to be credit impaired. Evidence of credit quality deterioration as of purchase dates may include information such as past‑due and nonaccrual status, borrower credit scores and recent loan to value percentages. The Company considers expected prepayments and estimates the amount and timing of expected principal, interest and other cash flows for each loan or pool of loans meeting the criteria above, and determines the excess of the loan’s scheduled contractual principal and contractual interest payments over all cash flows expected to be collected at acquisition as an amount that should not be accreted (nonaccretable difference). The remaining amount, representing the excess of the loan’s or pool’s cash flows expected to be collected over the fair value for the loan or pool of loans, is accreted into interest income over the remaining life of the loan or pool (accretable yield). In accordance with FASB ASC Topic 310‑30, the Company aggregated acquired loans that have common risk characteristics into pools within the following loan categories: commercial real estate, commercial real estate—construction and development, residential real estate, consumer, commercial and industrial, and single pay. Single pay loans consist of those instruments for which repayment of principal and interest is expected at maturity. Loans acquired through business combinations that do not meet the specific criteria of FASB ASC Topic 310‑30, but for which a discount is attributable at least in part to credit quality are generally accounted for under this guidance. As a result, related discounts are recognized subsequently through accretion based on the expected cash flow of the acquired loans. Certain acquired loans, such as lines of credit (consumer and commercial) and loans for which there was no discount attributable to credit are accounted for in accordance with FASB ASC Topic 310‑20, where the discount is accreted through earnings based on estimated cash flows over the estimated life of the loan. Subsequent to the acquisition date, increases in cash flows expected to be received in excess of the Company’s initial estimates are reclassified from nonaccretable difference to accretable yield and are accreted into interest income on a level‑yield basis over the remaining life of the loan. Decreases in cash flows expected to be collected are recognized as impairment through the provision for loan losses. Probable and significant increases in cash flows (in a loan pool where an allowance for acquired loan losses was previously recorded) reduces the remaining allowance for acquired loan losses before recalculating the amount of accretable yield percentage for the loan pool in accordance with ASC 310-30.
FDIC Indemnification Asset	FDIC Indemnification Asset On June 23, 2016, the Bank entered into an early termination agreement with the FDIC with respect to all of its outstanding loss share agreements. All assets previously classified as covered became uncovered, and the Bank will now recognize the full amount of future charge-offs, recoveries, gains, losses, and expenses related to these previously covered assets, as the FDIC will no longer share in these amounts. With the termination of the loss share agreements, the Company no longer carries a FDIC indemnification asset. Related to periods before the termination of the loss share agreements, the FDIC indemnification asset was measured separately from the related covered asset as it was not contractually embedded in the assets and was not transferable with the assets had the Company chosen to dispose of them. Fair value was estimated at the acquisition date using projected cash flows related to the loss sharing agreements based on the expected reimbursements for losses and the applicable loss sharing percentages. These expected reimbursements did not include reimbursable amounts related to future covered expenditures. These cash flows were discounted to reflect the uncertainty of the timing and receipt of the loss sharing reimbursement from the FDIC. The Company offset any recorded provision for loan losses related to acquired‑covered loans by recording an increase in the FDIC indemnification asset by the increase in expected cash flow, which was the result of a decrease in expected cash flow of acquired loans. An increase in cash flows on acquired loans resulted in a decrease in cash flows on the FDIC indemnification asset, which was recognized in the future as negative accretion through non‑interest income over the shorter of the remaining life of the FDIC indemnification asset or the underlying loans. The Company incurred expenses related to the assets indemnified by the FDIC, and pursuant to the loss share agreement certain costs were reimbursable by the FDIC. These costs were included in monthly and quarterly claims made by the Company. The estimates of reimbursements were netted against these covered expenses in the income statement.
Premises and Equipment	Premises and Equipment Land is carried at cost. Office equipment, furnishings, and buildings are carried at cost less accumulated depreciation computed principally on the declining‑balance and straight‑line methods over the estimated useful lives of the assets. Leasehold improvements are amortized on the straight‑line method over the shorter of the estimated useful lives of the improvements or the terms of the related leases including lease renewals only when the Company is reasonably assured of the aggregate term of the lease. Additions to premises and equipment and major replacements are added to the accounts at cost. Maintenance and repairs and minor replacements are charged to expense when incurred. Gains and losses on routine dispositions are reflected in current operations.
Intangible Assets	Intangible Assets Intangible assets consist of goodwill, core deposit intangibles, client list intangibles, and noncompetition agreement (“noncompete”) intangibles that result from the acquisition of other banks or branches from other financial institutions. Core deposit intangibles represent the value of long‑term deposit relationships acquired in these transactions. Client list intangibles represent the value of long‑term client relationships for the wealth and trust management business. Noncompete intangibles represent the value of key personnel relative to various competitive factors such as ability to compete, willingness or likelihood to compete, and feasibility based upon the competitive environment, and what the Bank could lose from competition. Goodwill represents the excess of the purchase price over the sum of the estimated fair values of the tangible and identifiable intangible assets acquired less the estimated fair value of the liabilities assumed. Goodwill has an indefinite useful life and is evaluated for impairment annually or more frequently if events and circumstances indicate that the asset might be impaired. An impairment loss is recognized to the extent that the carrying amount exceeds the asset’s fair value. The goodwill impairment analysis is a two‑step test. The first step, used to identify potential impairment, involves comparing the reporting unit’s estimated fair value to its carrying value, including goodwill. If the estimated fair value of a reporting unit exceeds its carrying value, goodwill assigned to that reporting unit is considered not to be impaired. If the carrying value exceeds estimated fair value, there is an indication of potential impairment and the second step is performed to measure the amount of impairment of goodwill assigned to that reporting unit. If required, the second step involves calculating an implied fair value of goodwill for each reporting unit for which the first step indicated impairment. The implied fair value of goodwill is determined in a manner similar to the amount of goodwill calculated in a business combination, by measuring the excess of the estimated fair value of the reporting unit, as determined in the first step, over the aggregate estimated fair values of the individual assets, liabilities and identifiable intangibles as if the reporting unit was being acquired in a business combination. If the implied fair value of goodwill exceeds the carrying value of goodwill assigned to the reporting unit, there is no impairment. If the carrying value of goodwill assigned to a reporting unit exceeds the implied fair value of the goodwill, an impairment charge is recorded for the excess. An impairment loss cannot exceed the carrying value of goodwill assigned to a reporting unit, and the loss establishes a new basis in the goodwill. Subsequent reversal of goodwill impairment losses is not permitted. Management has determined that the Company has two reporting units. The Company evaluated the carrying value of goodwill as of April 30, 2017, its annual test date, and determined that no impairment charge was necessary. Additionally, should the Company’s future earnings and cash flows decline and/or discount rates increase, an impairment charge to goodwill and other intangible assets may be required. Core deposit intangibles, included in core deposit and other intangibles, are amortized over the estimated useful lives of the deposit accounts acquired (generally 10 to 13 years) on either (1) the straight‑line method or (2) an accelerated basis method which reasonably approximates the anticipated benefit stream from the accounts. The estimated useful lives are periodically reviewed for reasonableness. Noncompete intangibles, included in core deposit and other intangibles are amortized over the life of the underlying noncompete agreements (generally 2 to 3 years) on the straight‑line method. The estimated useful lives are periodically reviewed for reasonableness. Client list intangibles, included in core deposit and other intangibles, are amortized over the estimated useful lives of the client lists acquired (generally 15 years) on the straight‑line method. The estimated useful lives are periodically reviewed for reasonableness.
Mortgage Servicing Rights	Mortgage Servicing Rights The Company has a mortgage loan servicing portfolio with related mortgage servicing rights. Mortgage servicing rights (“MSRs”) represent the present value of the future net servicing fees from servicing mortgage loans. Servicing assets and servicing liabilities must be initially measured at fair value, if practicable. For subsequent measurements, an entity can choose to measure servicing assets and liabilities either based on fair value or lower of cost or market. The Company uses the fair value measurement option for MSRs. The methodology used to determine the fair value of MSRs is subjective and requires the development of a number of assumptions, including anticipated prepayments of loan principal. Fair value is determined by estimating the present value of the asset’s future cash flows utilizing estimated market‑based prepayment rates and discount rates, interest rates and other economic factors and assumptions validated through comparison to trade information, industry surveys and with the use of independent third party appraisals. Risks inherent in the MSRs valuation include higher than expected prepayment rates and/or delayed receipt of cash flows. The value of MSRs is significantly affected by mortgage interest rates available in the marketplace, which influence mortgage loan prepayment speeds. In general, during periods of declining interest rates, the value of mortgage servicing rights declines due to increasing prepayments attributable to increased mortgage refinance activity. Conversely, during periods of rising interest rates, the value of servicing rights generally increases due to reduced refinance activity. MSRs are carried at fair value with changes in fair value recorded as a component of mortgage banking income each period in the Consolidated Statements of Income. The Company also uses derivative instruments to mitigate the income statement effect of changes in fair value due to changes in valuation inputs and assumptions of its MSRs.
Transfer of Financial Assets	Transfer of Financial Assets Transfers of financial assets are accounted for as sales when control over the assets has been surrendered. Control over the transferred assets is deemed to be surrendered when: (1) the assets have been isolated from the Company, (2) the transferee obtains the right (free of conditions that constrain it from taking advantage of that right) to pledge or exchange the transferred assets, and (3) the Company does not maintain effective control over the transferred assets through an agreement to repurchase them before their maturity. The Company reviews all sales of loans by evaluating specific terms in the sales documents and believes that the criteria discussed above to qualify for sales treatment have been met as loans have been transferred for cash and the notes and mortgages for all loans in each sale are endorsed and assigned to the transferee. As stated in the commitment document, the Buyer has no recourse with these loans except in the case of fraud. In certain sales, mortgage servicing rights may be retained and in other programs potential loss exposure from the credit enhancement obligation may be retained, both of which are evaluated and appropriately measured at the date of sale. The Company packages most of the 30 year fixed rate conforming mortgage loans as securities to investors issued through Fannie Mae and sold to third‑party investors or sells them to satisfy cash forward mandatory commitments to Fannie Mae. The Company records loan securitizations or cash forwards as a sale when the transferred loans are legally isolated from its creditors and the accounting criteria for a sale are met. Gains or losses recorded on loan securitizations and cash forwards depend in part on the net carrying amount of the loans sold, which is allocated between the loans sold and retained interests based on their relative fair values at the date of sale. The Company generally retains mortgage servicing rights on residential mortgage loans sold in the secondary market. Loans transferred to “held-for-sale” with the intention of disposal through a bulk loan sale will be sold with servicing released. Since quoted market prices are not typically available, the fair value of retained interests is estimated through the services of a third‑party service provider to determine the net present value of expected future cash flows. Such models incorporate management’s best estimates of key variables, such as prepayment speeds and discount rates that would be used by market participants and are appropriate for the risks involved. Gains and losses incurred on loans sold to third‑party investors are included in mortgage banking income in the Consolidated Statements of Income.
Advertising Costs	Advertising Costs The Company expenses advertising costs as they are incurred and advertising communication costs the first time the advertising takes place. The Company may establish accruals for anticipated advertising expenses within the course of a fiscal year.
Comprehensive Income	Comprehensive Income Accounting principles generally require that recognized revenue, expenses, gains and losses be included in net income. Certain changes in assets and liabilities, such as (1) unrealized gains and losses on available‑for‑sale securities (2) unrealized gains and losses on effective portions of derivative financial instruments accounted for as cash flow hedges and (3) net change in unrecognized amounts related to pension and post‑retirement benefits, are reported as a separate component of the equity section of the balance sheet. Such items, along with net income, are components of total comprehensive income (see Consolidated Statements of Comprehensive Income on page F‑7).
Employee Benefit Plans	Employee Benefit Plans The Company’s defined benefit pension and other post retirement plans are accounted for in accordance with FASB ASC 715, Compensation—Retirement Benefits , which requires the Company to recognize the funded status in its statement of financial position. See Note 17 for information regarding the defined benefit pension plan and Note 18 for information regarding our post‑retirement benefit plans. The expected costs of the plans are being expensed over the period that employees provide service. The Employee Stock Purchase Plan (“ESPP”) allows for a look‑back option which establishes the purchase price as an amount based on the lesser of the stock’s market price at the grant date or its market price at the exercise (or purchase) date. For the shares issued in exchange for employee services under the plan, the Company accounts for the plan under the FASB ASC 718, Compensation—Stock Compensation , in which the fair value measurement method is used to estimate the fair value of the equity instruments, based on the share price and other measurement assumptions at the grant date. See Note 19 for the amount the Company recognized as expense for the years ended December 31, 2017, 2016 and 2015.
Income Taxes	Income Taxes Income taxes are provided for the tax effects of the transactions reported in the accompanying consolidated financial statements and consist of taxes currently due plus deferred taxes related primarily to differences between the tax basis and financial statement basis of gains on acquisitions, available‑for‑sale securities, allowance for loan losses, write downs of OREO properties, accumulated depreciation, net operating loss carryforwards, accretion income, deferred compensation, intangible assets, mortgage servicing rights, and pension plan and post‑retirement benefits. The deferred tax assets and liabilities represent the future tax return consequences of those differences, which will either be taxable or deductible when the assets and liabilities are recovered or settled. Deferred tax assets and liabilities are reflected at income tax rates applicable to the period in which the deferred tax assets or liabilities are expected to be realized or settled. As changes in tax laws or rates are enacted, deferred tax assets and liabilities are adjusted through the provision for income taxes. As a result of the Tax Reform Act signed into law on December 22, 2017, the Company revalued its deferred tax assets and liabilities. Further information about the impact of the Tax Reform Act can be found in Note 12 of the Company’s consolidated financial statements. The Company recognizes interest and penalties accrued relative to unrecognized tax benefits in its respective federal or state income tax accounts. As of December 31, 2017 and 2016, there were no material accruals for uncertain tax positions. The Company and its subsidiaries file a consolidated federal income tax return. Additionally, income tax returns are filed by the Company or its subsidiaries in the state of South Carolina, Georgia, North Carolina, Florida, Virginia, Alabama, and Mississippi. Generally, the Company’s federal and state income tax returns are no longer subject to examination by taxing authorities for years prior to 2014.
Earnings Per Share	Earnings Per Share Basic earnings per share (“EPS”) represents income available to common shareholders divided by the weighted‑average number of shares outstanding during the year. Diluted earnings per share reflects additional shares that would have been outstanding if dilutive potential shares had been issued. Potential shares that may be issued by the Company relate solely to outstanding stock options, restricted stock and restricted stock units (non‑vested shares), and warrants, and are determined using the treasury stock method. Under the treasury stock method, the number of incremental shares is determined by assuming the issuance of stock for the outstanding stock options and warrants, reduced by the number of shares assumed to be repurchased from the issuance proceeds, using the average market price for the year of the Company’s stock. Weighted‑average shares for the basic and diluted EPS calculations have been reduced by the average number of unvested restricted shares.
Derivative Financial Instruments	Derivative Financial Instruments The Company’s interest rate risk management strategy incorporates the use of a derivative financial instrument, specifically an interest rate swap, to essentially convert a portion of its variable‑rate debt to a fixed rate. Cash flows related to variable‑rate debt will fluctuate with changes in an underlying rate index. When effectively hedged, the increases or decreases in cash flows related to the variable‑rate debt will generally be offset by changes in cash flows of the derivative instrument designated as a hedge. This strategy is referred to as a cash flow hedge. The Company also maintains one loan swap which is accounted for as a fair value hedge. This derivative protects the company from interest rate risk caused by changes in the LIBOR curve in relation to a certain designated fixed rate loan. This fair value hedge converts the fixed rate to a floating rate (see Note 28 – Derivative Financial Instruments). The Company’s risk management strategy for its mortgage banking activities incorporates derivative instruments used to hedge both the value of the mortgage servicing rights and the mortgage pipeline. These derivative instruments are not designated as hedges and are not speculative in nature. The derivative instruments that are used to hedge the value of the mortgage servicing rights include financial forwards, futures contracts, and options written and purchased. When‑issued securities and mandatory cash forward trades are typically used to hedge the mortgage pipeline. These instruments derive their cash flows, and therefore their values, by reference to an underlying instrument, index or referenced interest rate. The Company’s risk management strategy also incorporates the use of interest rate swap contracts that help in managing interest rate risk within the loan portfolio and foreign currency exchange. These derivative are not designated as hedges and are not speculative, and result from a service the Company provides to certain customers. In 2016, the Company had one interest rate swap. In 2017, with the acquisition of Park, the Company assumed numerous interest rate swap contracts. The Company executes interest rate swaps with commercial banking customers to facilitate their respective risk management strategies. Those interest rate swaps are simultaneously hedged by offsetting interest rate swaps that the Company executes with a third party, such that the Company minimizes its net risk exposure resulting from such transactions. As the interest rate swaps associated with this program do not meet the strict hedge accounting requirements, changes in the fair value of both the customer swaps and the offsetting swaps are recognized directly in earnings (See Note 28 – Derivative Financial Instruments). By using derivative instruments, the Company is exposed to credit and market risk. If the counterparty fails to perform, credit risk is equal to the fair value gain in a derivative. When the fair value of a derivative contract is positive, this situation generally indicates that the counterparty is obligated to pay the Company, and, therefore, creates a repayment risk for the Company. When the fair value of a derivative contract is negative, the Company is obligated to pay the counterparty and, therefore, has no repayment risk. The Company minimizes the credit risk in derivative instruments by entering into transactions with high‑quality counterparties that are reviewed periodically by the Company. The Company’s derivative activities are monitored by its Asset‑Liability Management Committee as part of that committee’s oversight of the Company’s asset/liability and treasury functions. The Company’s Asset‑Liability Management Committee is responsible for implementing various hedging strategies that are developed through its analysis of data from financial simulation models and other internal and industry sources. The resulting hedging strategies are then incorporated into the overall interest‑rate risk management process. The Company recognizes the fair value of derivatives as assets or liabilities in the financial statements. The accounting for the changes in the fair value of a derivative depends on the intended use of the derivative instrument at inception. The change in fair value of the effective portion of cash flow hedges is accounted for in other comprehensive income rather than net income. Changes in fair value of derivative instruments that are not intended as a hedge are accounted for in the net income in the period of the change (see Note 28—Derivative Financial Instruments for further disclosure).
Reclassification	Reclassification Certain amounts previously reported have been reclassified to conform to the current year’s presentation. Such reclassifications had no effect on net income and shareholders’ equity.
Subsequent Events	Subsequent Events The Company has evaluated subsequent events for accounting and disclosure purposes through the date the financial statements are issued. See Note 31- Subsequent Events for further information.
Recent Accounting and Regulatory Pronouncements	Recent Accounting and Regulatory Pronouncements In February 2018, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2018-02, Income Statement-Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income; (“ASU 2018-02”). ASU 2018-02 amends ASC Topic 220 and allows a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the Tax Reform Act. Consequently, this amendment eliminates the stranded tax effects resulting from the Tax Reform Act and will improve the usefulness of information reported to financial statement users. However, because the amendments only related to the reclassification of the income tax effects of the Tax Reform Act, the underlying guidance that requires that the effects of the change in tax laws or rates be included in income from continuing operations is not affected. The guidance is effective for public companies for annual periods beginning on or after December 15, 2018 and interim periods within those fiscal years. Early adoption is permitted, including adoption in any interim period, (1) for public business entities for reporting periods for which financial statements have not yet been issued and (2) for all other entities for reporting periods for which financial statements have not yet been made available for issuance. This amendment should be applied either in the period of adoption or retrospectively to each period (or periods) in which the effect of the change in U.S. federal corporate income tax rate in the Tax Reform Act is recognized. The Company early adopted this amendment in the first quarter of 2018 and reclassed $2.9 million from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the Tax Reform Act. In August 2017, the FASB issued ASU No. 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities; (“ASU 2017-12”). ASU 2017-12 amends Accounting Standards Codification (“ASC”) Topic 815 to better align an entity’s risk management activities and financial reporting for hedging relationships through changes to both the designation and measurement guidance for qualifying hedging relationships and the presentation of hedge results. These amendments will improve the transparency of information about an entity’s risk management activities and simplify the application of hedge accounting. The guidance is effective for public companies for annual periods beginning on or after December 15, 2018 and interim periods within those fiscal years. Early adoption is permitted. All transition requirements and elections should be applied to hedging relationships existing on the date of adoption. The Company is still assessing the impact of this new guidance, but does not think it will have a material impact on the Company’s consolidated financial statements. In May 2017, the FASB issued ASU No. 2017-09, Compensation-Stock Compensation (Topic 718): Scope of Modification Accounting ; (“ASU 2017-09”). ASU 2017-09 provides clarity by offering guidance on the scope of modification accounting for share-based payment awards and gives direction on which changes to the terms or conditions of these awards require an entity to apply modification accounting. Under the new guidance, modification accounting is required only if the fair value, the vesting conditions, or the classification of the award (as equity or liability) changes as a result of the change in terms or conditions. The guidance is effective prospectively for all companies for annual periods beginning on or after December 15, 2017. Early adoption is permitted. The Company has determined that this guidance will not have a material impact on the Company’s consolidated financial statements. In March 2017, the FASB issued ASU No. 2017-08, Receivables-Nonrefundable Fees and Other Cost (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities; (“ASU 2017-08”). ASU 2017-08 shortens the amortization period of the premium for certain callable debt securities, from the contractual maturity date to the earliest call date. The amendments do not require an accounting change for securities held at a discount; an entity will continue to amortize to the contractual maturity date the discount related to callable debt securities. The amendments apply to the amortization of premiums on callable debt securities with explicit, noncontingent call features that are callable at fixed prices on preset dates. For public business entities, ASU 2017-08 is effective in fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. For entities other than public business entities, the amendments are effective in fiscal years beginning after December 15, 2019 and in interim periods in fiscal years beginning after December 15, 2020. Early adoption is permitted for all entities, including in an interim period. The amendments should be applied on a modified retrospective basis, with a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period in which the amendments are adopted. The Company has determined that this guidance will not have a material impact on the Company’s consolidated financial statements. In March 2017, the FASB issued ASU No. 2017-07, Compensation-Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost; (“ASU 2017-07”). ASU 2017-07 applies to any employer that sponsors a defined benefit pension plan, other postretirement benefit plan, or other types of benefits accounted for under Topic 715. The amendments require that an employer disaggregate the service cost component from the other components of net benefit cost, as follows (1) service cost must be presented in the same line item(s) as other employee compensation costs. These costs are generally included within income from continuing operations, but in some cases may be eligible for capitalization, (2) all other components of net benefit cost must be presented in the income statement separately from the service cost component and outside a subtotal of income from operations, if one is presented, (3) the amendments permit capitalizing only the service cost component of net benefit cost, assuming such costs meet the criteria required for capitalization by other GAAP , rather than total net benefit cost which has been permitted under prior GAAP. The guidance is effective for public business entities for fiscal years beginning after December 15, 2017, and interim periods within those years. The amendments should be adopted prospectively and allows a practical expedient that permits an employer to use the amounts disclosed in its pension and other postretirement benefit plan note for the prior periods to apply the retrospective presentation requirements. The Company has determined that this guidance will not have a material impact on the Company’s consolidated financial statements. In January 2017, the FASB issued ASU No. 2017-04, Intangible-Goodwill and other (Topic 350): Simplifying the Test for Goodwill Impairment; (“ASU 2017-04”). ASU 2017-04 simplifies the accounting for goodwill impairment for all entities by requiring impairment charges to be based on the first step in today’s two-step impairment test under ASC Topic 350 and eliminating Step 2 from the goodwill impairment test. As amended, the goodwill impairment test will consist of one step comparing the fair value of a reporting unit with its carrying amount. An entity should recognize a goodwill impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value. The guidance is effective for public business entities for fiscal years beginning after December 15, 2019, and interim periods within those years. The amendments should be adopted prospectively and early adoption is permitted for interim or annual goodwill impairment tests performed on testing dates after January 1, 2017. At this point in time, the Company does not expect that this guidance will have a material impact on the Company’s consolidated financial statements. In January 2017, the FASB issued ASU No. 2017-03, Accounting Changes and Error Corrections (Topic 250) and Investments-Equity Method and Joint Ventures (Topic 323) (“ASU 2017-03”). ASU 2017-03 amends the Codification for SEC staff announcements made at two Emerging Issues Task Force (EITF) meetings. At the September 2016 meeting, the SEC staff expressed its expectations about the extent of disclosures registrants should make about the effects of the new FASB guidance (including any amendments issued prior to adoption) on revenue (ASU 2014-09), leases (ASU 2016-02) and credit losses on financial instruments (ASU 2016-13) in accordance with SAB Topic 11.M. That Topic requires registrants to disclose the effect that recently issued accounting standards will have on their financial statements when adopted in a future period. ASU 2017-03 incorporates these SEC staff views into ASC Topic 250 and adds references to that guidance in the transition paragraphs of each of the three new standards. The ASU also conforms ASC 323-740-S99-2, which describes the SEC staff’s views on accounting for investments in qualified affordable housing projects, to the guidance issued in ASU 2014-01. The Company adopted this standard in the fourth quarter of 2016 and will continue to refine its disclosures around the standard. The Company determined that this guidance did not have a material impact on the Company’s consolidated financial statements. In January 2017, the FASB issued ASU No. 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a Business; (“ASU 2017-01”). ASU 2017-01 requires an entity to evaluate if substantially all of the fair value of the gross assets acquired is concentrated in a single identifiable asset or a group of similar identifiable assets; if so, the set of transferred assets and activities is not a business. The guidance also requires a business to include at least one substantive process and narrows the definition of outputs by more closely aligning it with how outputs are described in ASC Topic 606. The guidance is effective for public business entities for fiscal years beginning after December 15, 2017, and interim periods within those years. Early adoption is permitted. The Company has determined that this guidance will not have a material impact on the Company’s consolidated financial statements. In December 2016, the FASB issued ASU No. 2016-20, Technical Corrections and Improvements to Topic 606, Revenue from Contracts with Customers ; (“ASU 2016-20”). ASU 2016-20 updates the new revenue standard by clarifying issues that arisen from ASU 2014-09, but does not change the core principle of the new standard. The issues addressed in this ASU include: 1) Loan guarantee fees, 2) Impairment testing of contract costs, 3) Interaction of impairment testing with guidance in other topics, 4) Provisions for losses on construction-type and production-type contracts, 5) Scope of topic 606, 6) Disclosure of remaining performance obligations, 7) Disclosure of prior-period performance obligations, 8) Contract modifications, 9) Contract asset vs. receivable, 10) Refund liability, 11) Advertising costs, 12) Fixed-odds wagering contracts in the casino industry, 13) Cost capitalization for advisors to private funds and public funds. The updated guidance is effective for interim and annual reporting periods beginning after December 15, 2017. The amendments can be applied retrospectively to each prior reporting period or retrospectively with the cumulative effect of initially applying this new guidance recognized at the date of initial application. Our revenue is comprised of net interest income on financial assets and financial liabilities, which is explicitly excluded from the scope of ASU 2014-09, and non-interest income. After evaluating ASU 2016-20, ASU 2016-08 and 2014-09, we have determined that there is no material changes on how we recognize our revenue streams and the adoption of these standards will not have a material impact on our financial statements. In August 2016, the FASB issued ASU No. 2016-15 , Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments: (“ASU 2016-15”). ASU 2016-15 addresses eight classification issues related to the statement of cash flows: Debt prepayment or debt extinguishment costs; Settlement of zero-coupon bonds; Contingent consideration payments made after a business combination; Proceeds from the settlement of insurance claims; Proceeds from the settlement of corporate-owned life insurance policies, including bank-owned life insurance policies; Distributions received from equity method investees; Beneficial interests in securitization transactions; and Separately identifiable cash flows and application of the predominance principle. The updated guidance is effective for interim and annual reporting periods beginning after December 15, 2017 , including interim periods within those fiscal years. Early adoption is permitted. Entities will apply the standard's provisions using a retrospective transition method to each period presented. This guidance will not have a material impact on the Company’s consolidated financial statements. In June 2016, the FASB issued ASU No. 2016-13 , Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments: (“ASU 2016-13”). ASU 2016-13 requires an entity to utilize a new impairment model known as the current expected credit loss ("CECL") model to estimate its lifetime "expected credit loss" and record an allowance that, when deducted from the amortized cost basis of the financial asset, presents the net amount expected to be collected on the financial asset. The CECL model is expected to result in earlier recognition of credit losses. ASU 2016-13 also requires new disclosures for financial assets measured at amortized cost, loans and available-for-sale debt securities. The updated guidance is effective for interim and annual reporting periods beginning after December 15, 2019 , including interim periods within those fiscal years. Early adoption is permitted. Entities will apply the standard's provisions as a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period in which the guidance is adopted. We have dedicated staff and resources in place evaluating the Company’s options including evaluating the appropriate model options and collecting and reviewing loan data for use in these models. The Company is currently still assessing the impact that this new guidance will have on its consolidated financial statements. In March 2016, the FASB issued ASU No. 2016-09, Compensation – Stock Compensation (Topic 718): Improvements to Employee Share – Based Payment Accounting; (“ASU 2016-09”). ASU 2016-09 introduces targeted amendments intended to simplify the accounting for stock compensation. Specifically, ASU 2016-09 requires all excess tax benefits and tax deficiencies (including tax benefits of dividends on share-based payment awards) to be recognized as income tax expense or benefit in the income statement. The tax effects of exercised or vested awards should be treated as discrete items in the reporting period in which they occur. An entity also should recognize excess tax benefits, and assess the need for a valuation allowance, regardless of whether the benefit reduces taxes payable in the current period. That is, off balance sheet accounting for net operating losses stemming from excess tax benefits would no longer be required and instead such net operating losses would be recognized when they arise. Existing net operating losses that are currently tracked off balance sheet would be recognized, net of a valuation allowance if required, through an adjustment to opening retained earnings in the period of adoption. Entities will no longer need to maintain and track an “APIC pool.” For public business entities, ASU 2016-09 was effective for interim and annual periods beginning after December 15, 2016 which will make this ASU effective for the Company starting on January 1, 2017. For the year ended December 31, 2017, excess tax benefits of approximately $1,547,000 were recorded against income tax expense in the income statement which previously would have been recorded against surplus on the balance sheet. In March 2016, the FASB issued ASU No. 2016-08, Revenue from Contracts with Customers (Topic 606): Principal versus Agent considerations (Reporting Revenue Gross versus Net); (“ASU 2016-08”). ASU 2016-08 updates the new revenue standard by clarifying the principal versus agent implementation guidance, but does not change the core principle of the new standard. The updates to the principal versus agent guidance: (i) require an entity to determine whether it is a principal or an agent for each distinct good or service (or a distinct bundle of goods or services) to be provided to the customer; (ii) illustrate how an entity that is a principal might apply the control principle to goods, services, or rights to services, when another party is involved in providing goods or services to a customer and (iii) Clarify that the purpose of certain specific control indicators is to support or assist in the assessment of whether an entity controls a good or service before it is transferred to the customer, provide more specific guidance on how the indicators should be considered, and clarify that their relevance will vary depending on the facts and circumstances. For public business entities, the effective date and transition requirements for these amendments are the same as the effective date and transition requirements of ASU 2014-09 which is effective for interim and annual periods beginning after December 15, 2017. The amendments can be applied retrospectively to each prior reporting period or retrospectively with the cumulative effect of initially applying this new guidance recognized at the date of initial application. Our revenue is comprised of net interest income on financial assets and financial liabilities, which is explicitly excluded from the scope of ASU 2014-09, and non-interest income. After evaluating ASU 2016-20, ASU 2016-08 and 2014-09, we have determined that there is no material changes on how we recognize our revenue streams and the adoption of these standards will not have a material impact on our financial statements. In March 2016, the FASB issued ASU No. 2016-07, Investments – Equity Method and Joint Ventures (Topic 323): Simplifying the Transition to the Equity Method of Accounting; (“ASU 2016-07”). ASU 2016-07 requires an investor to initially apply the equity method of accounting from the date it qualifies for that method, i.e., the date the investor obtains significant influence over the operating and financial policies of an investee. The ASU eliminates the previous requirement to retroactively adjust the investment and record a cumulative catch up for the periods that the investment had been held, but did not qualify for the equity method of accounting. For public business entities, the amendments in ASU 2016-05 are effective for interim and annual periods beginning after December 15, 2016. The amendments should be applied prospectively upon their effective date to increases in the level of ownership interest or degree of influence that result in the adoption of the equity method. ASU 2016-07 became effective for the Company on January 1, 2017 and did not have a significant impact on the Company’s consolidated financial statements. In March 2016, the FASB issued ASU No. 2016-05, Derivatives and Hedging (Topic 815): Effect of Derivative Contract Novations on Existing Hedge Accounting Relationships (“ASU 2016-05”). ASU 2016-05 requires an entity to discontinue a designated hedging relationship in certain circumstances, including termination of the derivative hedging instrument or if the entity wishes to change any of the critical terms of the hedging relationship. ASU 2016-05 amends Topic 815 to clarify that novation of a derivative (replacing one of the parties to a derivative instrument with a new party) designated as the hedging instrument would not, in and of itself, be considered a termination of the derivative instrument or a change in critical terms requiring discontinuation of the designated hedging relationship. For public business entities, the amendments in ASU 2016-05 are effective for interim and annual periods beginning after December 15, 2016. An entity has an option to apply the amendments in ASU 2016-05 on either a prospective basis or a modified retrospective basis. ASU 2016-05 became effective for the Company on January 1, 2017 and did not have a significant impact on the Company’s consolidated financial statements. In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842) (“ASU 2016-02”). ASU 2016-02 applies a right-of-use (ROU) model that requires a lessee to record, for all leases with a lease term of more than 12 months, an asset representing its right to use the underlying asset and a liability to make lease payments. For leases with a term of 12 months or less, a practical expedient is available whereby a lessee may elect, by class of underlying asset, not to recognize an ROU asset or lease liability. At inception, lessees must classify all leases as either finance or operating based on five criteria. Balance sheet recognition of finance and operating leases is similar, but the pattern of expense recognition in the income statement, as well as the effect on the statement of cash flows, differs depending on the lease classification. For public business entities, the amendments in ASU 2016-02 are effective for interim and annual periods beginning after December 15, 2018. In transition, lessees and lessors are required to recognize and measure leases at the beginning of the earliest period presented using a modified retrospective approach which includes a number of optional practical expedients that entities may elect to apply. The Company has reviewed its outstanding lease agreements and has centrally documented the terms of its leases. The Company is still currently evaluating the provisions of ASU 2016-02 in relation to its outstanding leases to determine the potential impact the new standard will have to the Company’s consolidated financial statements. Based on our current evaluation we estimate that the Company would record a right to use asset and a lease liability of approximately $84 million if the standard was effective at December 31, 2017. In January 2016, the FASB issued ASU No. 2016-01, Financial Instruments – Overall (Subtopic 825-10); Recognition and Measurement of Financial Assets and Financial Liabilities (“ASU 2016-01”). This update is intended to improve the recognition and measurement of financial instruments and it requires an entity to: (i) measure equity investments at fair value through net income, with certain exceptions; (ii) present in OCI the changes in instrument-specific credit risk for financial liabilities measured using the fair value option; (iii) present financial assets and financial liabilities by measurement category and form of financial asset; (iv) calculate the fair value of financial instruments for disclosure purposes based on an exit price and; (v) assess a valuation allowance on deferred tax assets related to unrealized losses of AFS debt securities in combination with other deferred tax assets. ASU 2016-01 also provides an election to subsequently measure certain nonmarketable equity investments at cost less any impairment and adjusted for certain observable price changes and requires a qualitative impairment assessment of such equity investments and amends certain fair value disclosure requirements. For public business entities, the amendments in ASU 2016-01 are effective for interim and annual periods beginning after December 15, 2017. An entity should apply the amendments by means of a cumulative-effect adjustment to the balance sheet as of the beginning of the fiscal year of adoption. The amendments related to equity securities without readily determinable fair values (including disclosure requirements) should be applied prospectively to equity investments that exist as of the date of adoption of the ASU 2016-01. The Company has determined that the implementation of this standard will not have a material impact to the Company’s consolidated financial statements. In September 2015, the FASB issued ASU No. 2015-16, Business Combinations (Topic 805): Simplifying the Accounting for Measurement Period Adjustments (“ASU 2015-16”). The update simplifies the accounting for adjustments made to provisional amounts recognized in a business combination by eliminating the requirement to retrospectively account for those adjustments. For public companies, this update will be effective for interim and annual periods beginning after December 15, 2015, and is to be applied prospectively. ASU 2015-16 became effective for the Company on January 1, 2016 and did not have a significant impact on the Company’s consolidated financial statements. In April 2015, the FASB issued ASU No. 2015-03, Interest—Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs (“ASU 2015-03”). The update simplifies the presentation of debt issuance costs by requiring that debt issuance costs be presented in the balance sheet as a direct deduction from the carrying amount of debt liability, consistent with debt discounts or premiums. The recognition and measurement guidance for debt issuance costs are not affected by the amendments in this update. In August 2015, the FASB issued ASU 2015-15, Interest—Imputation of Interest (Subtopic 835-30): Presentation and Subsequent Measurement of Debt Issuance Costs Associated with Line-of-Credit Arrangements , expanding the guidance provided in ASU 2015-03 by permitting the presentation of costs associated with securing a revolving line of credit as an asset, regardless of whether or not the line of credit is funded. For public companies, both updates will be effective for interim and annual periods beginning after December 15, 2015, and are to be applied retrospectively. ASU 2015-03 became effective for the Company on January 1, 2016 and did not have a significant impact on the Company’s consolidated financial statements. In February 2015, the FASB issued ASU 2015-02, Amendments to the Consolidation Analysis (“ASU 2015-02”). This ASU affects reporting entities that are required to evaluate whether they should consolidate certain legal entities. Specifically, the amendments: (1) modify the evaluation of whether limited partnerships and similar legal entities are variable interest entities (“VIEs”) or voting interest entities; (2) eliminate the presumption that a general partner should consolidate a limited partnership; (3) affect the consolidation analysis of reporting entities that are involved with VIEs, particularly those that have fee arrangements and related party relationships; and (4) provide a scope exception from consolidation guidance for reporting entities with interests in legal entities that are required to comply with or operate in accordance with requirements that are similar to those in Rule 2a-7 of the Investment Company Act of 1940 for registered money market funds. ASU No. 2015-02 is effective for interim and annual reporting periods beginning after December 15, 2015. ASU 2015-02 became effective for the Company on January 1, 2016 and did not have a significant impact on the Company’s consolidated financial statements. In November 2014, the FASB issued ASU 2014-16, Derivatives and Hedging (Topic 815): Determining Whether the Host Contract in a Hybrid Financial Instrument Issued in the Form of a Share Is More Akin to Debt or to Equity, a consensus of the FASB Emerging Issues Task Force (“ASU 2014-16”). This ASU clarifies how current U.S. GAAP should be interpreted in subjectively evaluating the economic characteristics and risks of a host contract in a hybrid financial instrument that is issued in the form of a share. ASU 2014-16 is effective for public business entities for annual periods and interim periods within those annual periods, beginning after December 15, 2015. ASU 2014-16 became effective for the Company on January 1, 2016 and did not have a significant impact on the Company’s consolidated financial statements. In August 2014, the FASB issued ASU No. 2014-15, Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern. ASU 2014-15 requires management to assess a company’s ability to continue as a going concern and to provide related footnote disclosures in certain circumstances. Before this new standard, there was minimal guidance in U.S. GAAP specific to going concern. Under the new standard, disclosures are required when conditions give rise to substantial doubt about a company’s ability to continue as a going concern within one year from the financial statement issuance date. The new standard applies to all companies and is effective for the annual period ending after December 15, 2016, and all annual and interim periods thereafter. ASU 2014-15 became effective for the Company on December 31, 2016 and did not have an impact on the consolidated financial statements. In June 2014, the FASB issued ASU 2014-12, Compensation—Stock Compensation (Topic 718): Accounting for Share-Based Payments When the Terms of an Award Provide That a Performance Target Could Be Achieved after the Requisite Service Period, a consensus of the FASB Emerging Issues Task Force (“ASU 2014-12”). ASU 2014-12 requires that a performance target that affects vesting and that could be achieved after the requisite service period be treated as a performance condition. ASU 2014-12 is effective for annual periods and interim periods within those annual periods, beginning after December 15, 2015. An entity may apply the standards (1) prospectively to all share-based payment awards that are granted or modified on or after the effective date, or (2) retrospectively to all awards with performance targets that are outstanding as of the beginning of the earliest annual period presented in the financial statements and to all new or modified awards thereafter. Earlier application is permitted. ASU 2014-12 became effective for the Company on January 1, 2016 and did not have a significant impact on the Company’s consolidated financial statements. In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers, Topic 606 (“ASU 2014-09”). The new standard’s core principle is that a company will recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services. In doing so, companies will need to use more judgment and make more estimates than under existing guidance. These may include identifying performance obligations in the contract, estimating the amount of variable consideration to include in the transaction price and allocating the transaction price to each separate performance obligation. In August of 2015, the FASB issued ASU 2015-14, Revenue from Contracts with Customers, Topic 606: Deferral of the Effective Date, deferring the effective date of ASU 2014-09 until annual reporting periods beginning after December 15, 2017, including interim periods within that reporting period. The amendments can be applied retrospectively to each prior reporting period or retrospectively with the cumulative effect of initially applying this new guidance recognized at the date of initial application. Our revenue is comprised of net interest income on financial assets and financial liabilities, which is explicitly excluded from the scope of ASU 2014-09, and non-interest income. After evaluating ASU 2016-20, ASU 2016-08 and 2014-09, we have determined that there is no material changes on how we recognize our revenue streams and the adoption of these standards will not have a material impact on our financial statements.

Mergers and Acquisitions (Table

Mergers and Acquisitions (Tables)	12 Months Ended
	Dec. 31, 2017
Park Sterling Corporation
Mergers and Acquisitions
Schedule of assets acquired, liabilities assumed, and fair value of total consideration transferred	The PSC transaction was accounted for using the acquisition method of accounting and, accordingly, assets acquired, liabilities assumed and consideration exchanged were recorded at estimated fair value on the acquisition date. Fair values are preliminary and subject to refinement for up to a year after the closing date of the acquisition. Initial As Recorded Fair Value As Recorded by (Dollars in thousands) by Park Adjustments the Company Assets Cash and cash equivalents $ 116,454 $ — $ 116,454 Investment securities 461,261 1,444 (a) 462,705 Loans held for sale 2,200 68,686 (b) 70,886 Loans, net of allowance and mark 2,346,612 (95,878) (c) 2,250,734 Premises and equipment 61,059 (4,882) (d) 56,177 Intangible assets 73,090 (46,915) (e) 26,175 OREO and repossessed assets 2,549 (429) (f) 2,120 Bank owned life insurance 72,703 — 72,703 Deferred tax asset 17,963 11,596 (g) 29,559 Other assets 21,595 (476) (h) 21,119 Total assets $ 3,175,486 $ (66,854) $ 3,108,632 Liabilities Deposits: Noninterest-bearing $ 561,874 $ — $ 561,874 Interest-bearing 1,886,810 2,692 (i) 1,889,502 Total deposits 2,448,684 2,692 2,451,376 Federal funds purchased and securities sold under agreements to repurchase — — — Other borrowings 329,249 11,689 (j) 340,938 Other liabilities 24,179 2,131 (k) 26,310 Total liabilities 2,802,112 16,512 2,818,624 Net identifiable assets acquired over (under) liabilities assumed 373,374 (83,366) 290,008 Goodwill — 402,951 402,951 Net assets acquired over liabilities assumed $ 373,374 $ 319,585 $ 692,959 Consideration: South State Corporation common shares issued 7,480,343 Purchase price per share of the Company's common stock $ 92.05 Company common stock issued ($688,566) and cash exchanged for fractional shares ($88) $ 688,654 Cash paid for stock option redemptions 4,305 Fair value of total consideration transferred $ 692,959 Explanation of fair value adjustments (a)—Adjustment reflects marking the securities portfolio to fair value as of the acquisition date. (b)—Adjustment reflects a reclass of $68.7 million by SSB of Shared National Credits (loans) from loans held for investment to loans held for sale. (c)—Adjustment reflects the fair value adjustments (discount) of $60.9 million based on the Company’s evaluation of the acquired loan portfolio. This amount excludes the allowance for loan losses (“ALLL”) and fair value adjustment (discount) of $12.5 million and $21.3 million, respectively, recorded by PSC and is net of the $68.7 million reclass related to the Shared National Credits noted in (b). (d)—Adjustment reflects the fair value adjustments based on the Company’s evaluation of the acquired premises and equipment. (e)—Adjustment reflects the recording of a 1.66% Core Deposit Intangible (“CDI”) on the acquired deposit accounts that totaled $26.2 million offset by a write-off of $73.1 million of existing goodwill and CDI acquired from PSC. (f)—Adjustment reflects the fair value adjustments to other real estate owned (“OREO”) based on the Company’s evaluation of the acquired OREO portfolio. (g)—Adjustment to record deferred tax asset related to the fair value adjustments and an adjustment from the PSC tax rate to the SSB tax rate. (h)—Adjustment reflects the write-off of accrued interest receivable and along with certain prepaid expenses. (i)—Adjustment reflects the premium for fixed maturity time deposits of $2.95 million offset by the write-off of existing fair value marks of $253,000 acquired from PSC. (j)—Adjustment reflects the fair value adjustment (discount) of $2.4 million on PSC’s Trust Preferred Securities offset by the write-off of the existing PSC discount on its senior debt and TRUPs of $14.0 million. (k)—Adjustment reflects the fair value adjustments to employee benefit plans of $1.5 million along with other adjustments of miscellaneous liabilities.
Southeastern Bank Financial
Mergers and Acquisitions
Schedule of assets acquired, liabilities assumed, and fair value of total consideration transferred	The SBFC transaction was accounted for using the acquisition method of accounting and, accordingly, assets acquired, liabilities assumed and consideration exchanged were recorded at estimated fair value on the acquisition date. Initial Subsequent As Recorded Fair Value Fair Value As Recorded by (Dollars in thousands) by SBFC Adjustments Adjustments the Company Assets Cash and cash equivalents $ 72,043 $ — $ — $ 72,043 Investment securities 591,824 (1,770) (a) — 590,054 Loans held for sale 13,652 — — 13,652 Loans, net of allowance and mark 1,060,618 (10,668) (b) — 1,049,950 Premises and equipment 25,419 (2,212) (c) 870 (c) 24,077 Intangible assets 140 17,980 (d) — 18,120 OREO and repossessed assets 580 (30) (e) (100) (e) 450 Bank owned life insurance 44,513 — — 44,513 Deferred tax asset 16,247 (687) (f) 515 (f) 16,075 Other assets 7,545 (482) (g) — 7,063 Total assets $ 1,832,581 $ 2,131 $ 1,285 $ 1,835,997 Liabilities Deposits: Noninterest-bearing $ 262,967 $ — $ — $ 262,967 Interest-bearing 1,257,953 — — 1,257,953 Total deposits 1,520,920 — — 1,520,920 Federal funds purchased and securities sold under agreements to repurchase 1,014 — — 1,014 Other borrowings 110,620 (1,120) (h) — 109,500 Other liabilities 19,980 5,553 (i) 2,210 (i) 27,743 Total liabilities 1,652,534 4,433 2,210 1,659,177 Net identifiable assets acquired over (under) liabilities assumed 180,047 (2,302) (925) 176,820 Goodwill — 257,370 925 258,295 Net assets acquired over liabilities assumed $ 180,047 $ 255,068 $ — $ 435,115 Consideration: South State Corporation common shares issued 4,978,338 Purchase price per share of the Company's common stock $ 87.30 Company common stock issued ($434,609) and cash exchanged for fractional shares ($16) $ 434,625 Cash paid for stock option redemptions 490 Fair value of total consideration transferred $ 435,115 Explanation of fair value adjustments (a)—Adjustment reflects marking the securities portfolio to fair value as of the acquisition date. (b)—Adjustment reflects the fair value adjustments of $30.7 million based on the Company’s evaluation of the acquired loan portfolio and excludes the allowance for loan losses (“ALLL”) of $20.1 million recorded by SBFC. (c)—Adjustment reflects the fair value adjustments based on the Company’s evaluation of the acquired premises and equipment. (d)—Adjustment reflects the recording of the core deposit intangible on the acquired deposit accounts that totaled $18.1 million. (e)—Adjustment reflects the fair value adjustments to other real estate owned (“OREO”) and repossessed assets based on the Company’s evaluation of the acquired OREO and repossessed assets portfolio. (f)—Adjustment to record deferred tax asset related to the fair value adjustments. (g)—Adjustment reflects uncollectible portion of accrued interest receivable and loan fees receivable along with the write-off of certain prepaid expenses. (h)—Adjustment reflects the fair value adjustments based on the Company’s evaluation of other borrowings of Trust Preferred Securities with a discount of $2.1 million, netted with premium on certain Federal Home Loan Bank (“FHLB “) advances of $1.0 million. (i)—Adjustment reflects the fair value adjustments to employee benefit plans of $8.3 million netted against an adjustment of other miscellaneous liabilities of $496,000.
Bank of America
Mergers and Acquisitions
Schedule of assets acquired, liabilities assumed, and fair value of total consideration transferred	As Recorded Fair Value As Recorded by (Dollars in thousands) by BOA Adjustments the Company Assets Cash and cash equivalents $ 428,567 $ — $ 428,567 Loans 3,445 (295) (a) 3,150 Premises and equipment 6,267 (2,138) (b) 4,129 Intangible assets — 6,800 (c) 6,800 Other assets 66 — 66 Total assets $ 438,345 $ 4,367 $ 442,712 Liabilities Deposits: Noninterest-bearing $ 97,440 $ — $ 97,440 Interest-bearing 340,849 — 340,849 Total deposits 438,289 — 438,289 Other liabilities 56 — 56 Total liabilities 438,345 — 438,345 Net identifiable assets acquired over (under) liabilities assumed — 4,367 4,367 Goodwill — 20,652 20,652 Net assets acquired over (under) liabilities assumed $ — $ 25,019 $ 25,019 Consideration: Cash paid as deposit premium $ 25,019 Fair value of total consideration transferred $ 25,019 Explanation of fair value adjustments (a)—Adjustment reflects the fair value adjustments based on the Company’s evaluation of the acquired loan portfolio. (b)—Adjustment reflects the fair value adjustments based on the Company’s evaluation of the acquired premises and equipment. (c)—Adjustment reflects the recording of the core deposit intangible on the acquired core deposit accounts.

Investment Securities (Tables)

Investment Securities (Tables)	12 Months Ended
	Dec. 31, 2017
Investment Securities
Schedule of amortized cost and fair value of investment securities held to maturity	Gross Gross Amortized Unrealized Unrealized Fair (Dollars in thousands) Cost Gains Losses Value December 31, 2017: State and municipal obligations $ 2,529 $ 27 $ — $ 2,556 December 31, 2016: State and municipal obligations $ 6,094 $ 156 $ — $ 6,250
Schedule of amortized cost and fair value of investment securities available for sale	Gross Gross Amortized Unrealized Unrealized Fair (Dollars in thousands) Cost Gains Losses Value December 31, 2017: Government-sponsored entities debt* $ 86,535 $ 51 $ (1,077) $ 85,509 State and municipal obligations 216,812 3,749 (124) 220,437 Mortgage-backed securities** 1,350,200 2,103 (11,616) 1,340,687 Corporate securities 4,077 — — 4,077 $ 1,657,624 $ 5,903 $ (12,817) $ 1,650,710 December 31, 2016: Government-sponsored entities debt* $ 85,488 $ — $ (846) $ 84,642 State and municipal obligations 105,303 2,289 (190) 107,402 Mortgage-backed securities** 807,717 3,085 (7,225) 803,577 Corporate securities 3,658 473 (347) 3,784 $ 1,002,166 $ 5,847 $ (8,608) $ 999,405 * The Company’s government-sponsored entities holdings are comprised of debt securities offered by Federal Home Loan Mortgage Corporation (“FHLMC”) or Freddie Mac, Federal National Mortgage Association (“FNMA”) or Fannie Mae, FHLB, and Federal Farm Credit Banks (“FFCB”). Also included in the Company’s government-sponsored entities are debt securities offered by the Small Business Administration (“SBA”), which have the full faith and credit backing of the United States Government. ** All of the mortgage-backed securities are issued by government-sponsored entities; there are no private-label holdings.
Schedule of amortized cost and fair value of other investment securities	Gross Gross Amortized Unrealized Unrealized Fair (Dollars in thousands) Cost Gains Losses Value December 31, 2017: Federal Home Loan Bank stock $ 16,967 $ — $ — $ 16,967 Investment in unconsolidated subsidiaries 3,563 — — 3,563 $ 20,530 $ — $ — $ 20,530 December 31, 2016: Federal Home Loan Bank stock $ 7,840 $ — $ — $ 7,840 Investment in unconsolidated subsidiaries 1,642 — — 1,642 $ 9,482 $ — $ — $ 9,482
Schedule of amortized cost and fair value of debt securities by contractual maturity	Securities Securities Held to Maturity Available for Sale Amortized Fair Amortized Fair (Dollars in thousands) Cost Value Cost Value Due in one year or less $ — $ — $ 3,143 $ 3,143 Due after one year through five years 655 661 101,866 101,509 Due after five years through ten years 1,874 1,895 369,235 369,038 Due after ten years — — 1,183,380 1,177,020 $ 2,529 $ 2,556 $ 1,657,624 $ 1,650,710
Summary of information with respect to sales of available-for-sale securities	Year Ended December 31, (Dollars in thousands) 2017 2016 2015 Securities Held to Maturity: Sale proceeds $ — $ — $ — Gross realized gains $ — $ — $ — Gross realized losses — — — Net realized loss $ — $ — $ — Securities Available for Sale: Sale proceeds $ 374,938 $ 137 $ — Gross realized gains $ 1,832 $ 122 $ — Gross realized losses (411) — — Net realized gain $ 1,421 $ 122 $ —
Schedule of securities with gross unrealized losses, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position	Less Than Twelve Months Twelve Months or More Gross Gross Unrealized Fair Unrealized Fair (Dollars in thousands) Losses Value Losses Value December 31, 2017: Securities Available for Sale Government-sponsored entities debt $ 403 $ 27,442 $ 674 $ 52,324 State and municipal obligations 124 17,400 — — Mortgage-backed securities 4,493 610,051 7,123 322,258 Corporate securities — — — — $ 5,020 $ 654,893 $ 7,797 $ 374,582 December 31, 2016: Securities Available for Sale Government-sponsored entities debt $ 846 $ 84,642 $ — $ — State and municipal obligations 190 11,506 — — Mortgage-backed securities 7,148 592,228 77 2,058 Corporate securities — — 347 1,395 $ 8,184 $ 688,376 $ 424 $ 3,453

Loans and Allowance for Loan 43

Loans and Allowance for Loan Losses (Tables)	12 Months Ended
	Dec. 31, 2017
Loans and Allowance for Loan Losses
Schedule of changes in allowance for loan losses	Non-acquired Acquired Acquired Credit (Dollars in thousands) Loans Impaired Loans Impaired Loans Total Year Ended December 31, 2017: Balance at beginning of period $ 36,960 $ — $ 3,395 $ 40,355 Loans charged-off (5,149) (1,630) — (6,779) Recoveries of loans previously charged off 2,953 477 — 3,430 Net charge-offs (2,196) (1,153) — (3,349) Provision for loan losses 8,684 1,153 2,053 11,890 Benefit attributable to FDIC loss share agreements — — — — Total provision for loan losses charged to operations 8,684 1,153 2,053 11,890 Provision for loan losses recorded through the FDIC loss share receivable — — — — Reduction due to loan removals — — (821) (821) Balance at end of period $ 43,448 $ — $ 4,627 $ 48,075 Year Ended December 31, 2016: Balance at beginning of period $ 34,090 $ — $ 3,706 $ 37,796 Loans charged-off (5,902) (987) — (6,889) Recoveries of loans previously charged off 3,233 318 — 3,551 Net charge-offs (2,669) (669) — (3,338) Provision for loan losses 5,539 669 588 6,796 Benefit attributable to FDIC loss share agreements — — 23 23 Total provision for loan losses charged to operations 5,539 669 611 6,819 Provision for loan losses recorded through the FDIC loss share receivable — — (23) (23) Reduction due to loan removals — — (899) (899) Balance at end of period $ 36,960 $ — $ 3,395 $ 40,355 Year Ended December 31, 2015: Balance at beginning of period $ 34,539 $ — $ 7,365 $ 41,904 Loans charged-off (6,180) (2,787) — (8,967) Recoveries of loans previously charged off 2,801 387 — 3,188 Net charge-offs (3,379) (2,400) — (5,779) Provision for loan losses 2,930 2,400 (252) 5,078 Benefit attributable to FDIC loss share agreements — — 786 786 Total provision for loan losses charged to operations 2,930 2,400 534 5,864 Provision for loan losses recorded through the FDIC loss share receivable — — (786) (786) Reduction due to loan removals — — (3,407) (3,407) Balance at end of period $ 34,090 $ — $ 3,706 $ 37,796
Summary of average investment in impaired loans and interest income recognized on impaired loans	Year Ended December 31, 2017 2016 2015 Average Average Average Investment in Interest Income Investment in Interest Income Investment in Interest Income (Dollars in thousands) Impaired Loans Recognized Impaired Loans Recognized Impaired Loans Recognized Commercial real estate: Construction and land development $ 23,132 $ 1,138 $ 4,657 $ 120 $ 5,566 $ 263 Commercial non-owner occupied 1,091 45 1,129 32 2,531 66 Commercial owner occupied 5,943 268 6,985 291 8,442 368 Consumer real estate: Consumer owner occupied 5,653 195 6,611 206 5,257 183 Home equity loans 2,343 113 992 61 170 10 Commercial and industrial 1,209 48 1,375 52 1,198 61 Other income producing property 2,755 171 3,632 145 5,195 245 Consumer 192 6 123 6 81 4 Other loans — — 211 — 211 16 Total Impaired Loans $ 42,318 $ 1,984 $ 25,715 $ 913 $ 28,651 $ 1,216
Summary of information pertaining to nonaccrual loans by class	Unpaid Recorded Gross Contractual Investment Recorded Total Principal With No Investment Recorded Related (Dollars in thousands) Balance Allowance With Allowance Investment Allowance December 31, 2017 Commercial real estate: Construction and land development $ 47,553 $ 649 $ 42,581 $ 43,230 $ 1,063 Commercial non-owner occupied 3,106 860 515 1,375 125 Commercial owner occupied 9,212 3,553 2,089 5,642 64 Consumer real estate: Consumer owner occupied 7,382 4,392 1,240 5,632 37 Home equity loans 3,602 896 2,115 3,011 135 Commercial and industrial 2,246 635 521 1,156 15 Other income producing property 3,893 — 3,138 3,138 178 Consumer 654 — 239 239 7 Total $ 77,648 $ 10,985 $ 52,438 $ 63,423 $ 1,624 December 31, 2016 Commercial real estate: Construction and land development $ 7,394 $ 1,074 $ 1,959 $ 3,033 $ 348 Commercial non-owner occupied 2,417 223 583 806 170 Commercial owner occupied 10,118 3,976 2,269 6,245 67 Consumer real estate: Consumer owner occupied 7,090 2,120 3,553 5,673 80 Home equity loans 2,165 244 1,430 1,674 40 Commercial and industrial 2,335 — 1,263 1,263 386 Other income producing property 3,166 99 2,273 2,372 242 Consumer 394 — 145 145 4 Total $ 35,079 $ 7,736 $ 13,475 $ 21,211 $ 1,337
Southeastern Bank Financial
Loans and Allowance for Loan Losses
Schedule of contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting carrying values	January 3, 2017 Loans Impaired (Dollars in thousands) at Acquisition Contractual principal and interest $ 73,365 Non-accretable difference (12,912) Cash flows expected to be collected 60,453 Accretable difference (4,603) Carrying value $ 55,850
Park Sterling Corporation
Loans and Allowance for Loan Losses
Schedule of contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting carrying values	November 30, 2017 Loans Impaired (Dollars in thousands) at Acquisition Contractual principal and interest $ 92,600 Non-accretable difference (12,840) Cash flows expected to be collected 79,760 Accretable difference (8,829) Carrying value $ 70,931
Non-acquired loans
Loans and Allowance for Loan Losses
Summary of loans	December 31, (Dollars in thousands) 2017 2016 Non-acquired loans: Commercial non-owner occupied real estate: Construction and land development $ 830,875 $ 580,464 Commercial non-owner occupied 1,008,893 714,715 Total commercial non-owner occupied real estate 1,839,768 1,295,179 Consumer real estate: Consumer owner occupied 1,530,260 1,197,621 Home equity loans 437,642 383,218 Total consumer real estate 1,967,902 1,580,839 Commercial owner occupied real estate 1,262,776 1,177,745 Commercial and industrial 815,187 671,398 Other income producing property 193,847 178,238 Consumer 378,985 324,238 Other loans 33,690 13,404 Total non-acquired loans 6,492,155 5,241,041 Less allowance for loan losses (43,448) (36,960) Non-acquired loans, net $ 6,448,707 $ 5,204,081
Schedule of changes in allowance for loan losses	Construction Commercial Commercial Consumer Other Income & Land Non-owner Owner Owner Home Commercial Producing Other (Dollars in thousands) Development Occupied Occupied Occupied Equity & Industrial Property Consumer Loans Total Year Ended December 31, 2017: Allowance for loan losses: Balance at beginning of period $ 4,091 $ 4,980 $ 8,022 $ 7,820 $ 3,211 $ 4,842 $ 1,542 $ 2,350 $ 102 $ 36,960 Charge-offs (546) — — (185) (330) (776) (51) (3,261) — (5,149) Recoveries 968 132 220 306 210 343 85 689 — 2,953 Provision (benefit) 1,408 1,413 (114) 1,727 159 1,079 (201) 3,010 203 8,684 Balance at end of period $ 5,921 $ 6,525 $ 8,128 $ 9,668 $ 3,250 $ 5,488 $ 1,375 $ 2,788 $ 305 $ 43,448 Loans individually evaluated for impairment $ 1,063 $ 125 $ 64 $ 37 $ 135 $ 15 $ 178 $ 7 $ — $ 1,624 Loans collectively evaluated for impairment $ 4,858 $ 6,400 $ 8,064 $ 9,631 $ 3,115 $ 5,473 $ 1,197 $ 2,781 $ 305 $ 41,824 Loans: Loans individually evaluated for impairment $ 43,230 $ 1,375 $ 5,642 $ 5,632 $ 3,011 $ 1,156 $ 3,138 $ 239 $ — $ 63,423 Loans collectively evaluated for impairment 787,645 1,007,518 1,257,134 1,524,628 434,631 814,031 190,709 378,746 33,690 6,428,732 Total non-acquired loans $ 830,875 $ 1,008,893 $ 1,262,776 $ 1,530,260 $ 437,642 $ 815,187 $ 193,847 $ 378,985 $ 33,690 $ 6,492,155 Year Ended December 31, 2016: Allowance for loan losses: Balance at beginning of period $ 4,116 $ 3,568 $ 8,341 $ 7,212 $ 2,929 $ 3,974 $ 1,963 $ 1,694 $ 293 $ 34,090 Charge-offs (159) (111) (118) (226) (808) (876) (7) (3,597) — (5,902) Recoveries 912 512 54 134 299 292 87 943 — 3,233 Provision (benefit) (778) 1,011 (255) 700 791 1,452 (501) 3,310 (191) 5,539 Balance at end of period $ 4,091 $ 4,980 $ 8,022 $ 7,820 $ 3,211 $ 4,842 $ 1,542 $ 2,350 $ 102 $ 36,960 Loans individually evaluated for impairment $ 348 $ 170 $ 67 $ 80 $ 40 $ 386 $ 242 $ 4 $ — $ 1,337 Loans collectively evaluated for impairment $ 3,743 $ 4,810 $ 7,955 $ 7,740 $ 3,171 $ 4,456 $ 1,300 $ 2,346 $ 102 $ 35,623 Loans: Loans individually evaluated for impairment $ 3,033 $ 806 $ 6,245 $ 5,673 $ 1,674 $ 1,263 $ 2,372 $ 145 $ — $ 21,211 Loans collectively evaluated for impairment 577,431 713,909 1,171,500 1,191,948 381,544 670,135 175,866 324,093 13,404 5,219,830 Total non-acquired loans $ 580,464 $ 714,715 $ 1,177,745 $ 1,197,621 $ 383,218 $ 671,398 $ 178,238 $ 324,238 $ 13,404 $ 5,241,041 Year Ended December 31, 2015: Allowance for loan losses: Balance at beginning of period $ 5,666 $ 3,154 $ 8,415 $ 6,866 $ 2,829 $ 3,561 $ 2,232 $ 1,367 $ 449 $ 34,539 Charge-offs (219) (156) (851) (374) (547) (357) (102) (3,574) — (6,180) Recoveries 376 67 31 143 244 844 85 1,011 — 2,801 Provision (benefit) (1,707) 503 746 577 403 (74) (252) 2,890 (156) 2,930 Balance at end of period $ 4,116 $ 3,568 $ 8,341 $ 7,212 $ 2,929 $ 3,974 $ 1,963 $ 1,694 $ 293 $ 34,090 Loans individually evaluated for impairment $ 615 $ 34 $ 101 $ 138 $ 3 $ 279 $ 422 $ 3 $ 12 $ 1,607 Loans collectively evaluated for impairment $ 3,501 $ 3,534 $ 8,240 $ 7,074 $ 2,926 $ 3,695 $ 1,541 $ 1,691 $ 281 $ 32,483 Loans: Loans individually evaluated for impairment $ 6,280 $ 1,452 $ 7,725 $ 7,549 $ 309 $ 1,487 $ 4,891 $ 102 $ 423 $ 30,218 Loans collectively evaluated for impairment 395,699 486,325 1,025,673 1,011,435 318,946 502,321 170,957 233,002 46,150 4,190,508 Total non-acquired loans $ 401,979 $ 487,777 $ 1,033,398 $ 1,018,984 $ 319,255 $ 503,808 $ 175,848 $ 233,104 $ 46,573 $ 4,220,726
Schedule of credit risk profile by risk grade of loans	Total Non-acquired Loans December 31, December 31, (Dollars in thousands) 2017 2016 Pass $ 6,375,759 $ 5,112,628 Special mention 78,325 89,489 Substandard 38,071 38,924 Doubtful — — $ 6,492,155 $ 5,241,041
Aging analysis of past due loans, segregated by class of loans	30 - 59 Days 60 - 89 Days 90+ Days Total Total (Dollars in thousands) Past Due Past Due Past Due Past Due Current Loans December 31, 2017 Commercial real estate: Construction and land development $ 391 $ 63 $ 401 $ 855 $ 830,020 $ 830,875 Commercial non-owner occupied 297 398 51 746 1,008,147 1,008,893 Commercial owner occupied 2,227 382 1,721 4,330 1,258,446 1,262,776 Consumer real estate: Consumer owner occupied 1,291 140 1,943 3,374 1,526,886 1,530,260 Home equity loans 1,209 372 1,684 3,265 434,377 437,642 Commercial and industrial 477 57 915 1,449 813,738 815,187 Other income producing property 223 255 198 676 193,171 193,847 Consumer 525 196 623 1,344 377,641 378,985 Other loans — — — — 33,690 33,690 $ 6,640 $ 1,863 $ 7,536 $ 16,039 $ 6,476,116 $ 6,492,155 December 31, 2016 Commercial real estate: Construction and land development $ 256 $ 313 $ 1,026 $ 1,595 $ 578,869 $ 580,464 Commercial non-owner occupied 647 232 137 1,016 713,699 714,715 Commercial owner occupied 1,272 957 1,478 3,707 1,174,038 1,177,745 Consumer real estate: Consumer owner occupied 1,473 246 1,454 3,173 1,194,448 1,197,621 Home equity loans 566 889 838 2,293 380,925 383,218 Commercial and industrial 1,033 216 345 1,594 669,804 671,398 Other income producing property 310 94 147 551 177,687 178,238 Consumer 666 355 395 1,416 322,822 324,238 Other loans — — — — 13,404 13,404 $ 6,223 $ 3,302 $ 5,820 $ 15,345 $ 5,225,696 $ 5,241,041
Summary of information pertaining to impaired loans	December 31, (Dollars in thousands) 2017 2016 Commercial non-owner occupied real estate: Construction and land development $ 251 $ 672 Commercial non-owner occupied 2,635 578 Total commercial non-owner occupied real estate 2,886 1,250 Consumer real estate: Consumer owner occupied 4,888 5,711 Home equity loans 269 1,629 Total consumer real estate 5,157 7,340 Commercial owner occupied real estate 1,144 2,189 Commercial and industrial 1,662 420 Other income producing property 764 356 Consumer 1,802 930 Restructured loans 925 1,979 Total loans on nonaccrual status $ 14,340 $ 14,464
Non-acquired loans | Commercial non-owner occupied real estate
Loans and Allowance for Loan Losses
Schedule of credit risk profile by risk grade of loans	Construction & Development Commercial Non-owner Occupied Commercial Owner Occupied December 31, December 31, December 31, December 31, December 31, December 31, (Dollars in thousands) 2017 2016 2017 2016 2017 2016 Pass $ 818,240 $ 567,398 $ 999,049 $ 701,150 $ 1,232,927 $ 1,149,417 Special mention 8,758 8,421 7,864 11,434 23,575 22,133 Substandard 3,877 4,645 1,980 2,131 6,274 6,195 Doubtful — — — — — — $ 830,875 $ 580,464 $ 1,008,893 $ 714,715 $ 1,262,776 $ 1,177,745 Commercial & Industrial Other Income Producing Property Commercial Total December 31, December 31, December 31, December 31, December 31, December 31, 2017 2016 2017 2016 2017 2016 Pass $ 801,885 $ 655,157 $ 186,158 $ 167,025 $ 4,038,259 $ 3,240,147 Special mention 11,130 14,325 6,034 9,280 57,361 65,593 Substandard 2,172 1,916 1,655 1,933 15,958 16,820 Doubtful — — — — — — $ 815,187 $ 671,398 $ 193,847 $ 178,238 $ 4,111,578 $ 3,322,560
Non-acquired loans | Consumer real estate
Loans and Allowance for Loan Losses
Schedule of credit risk profile by risk grade of loans	The following table presents the credit risk profile by risk grade of consumer non‑acquired loans: Consumer Owner Occupied Home Equity Consumer December 31, December 31, December 31, December 31, December 31, December 31, (Dollars in thousands) 2017 2016 2017 2016 2017 2016 Pass $ 1,502,016 $ 1,167,768 $ 424,369 $ 368,655 $ 377,425 $ 322,654 Special mention 13,902 15,283 6,749 8,145 313 468 Substandard 14,342 14,570 6,524 6,418 1,247 1,116 Doubtful — — — — — — $ 1,530,260 $ 1,197,621 $ 437,642 $ 383,218 $ 378,985 $ 324,238 Other Consumer Total December 31, 2017 December 31, 2016 December 31, 2017 December 31, 2016 Pass $ 33,690 $ 13,404 $ 2,337,500 $ 1,872,481 Special mention — — 20,964 23,896 Substandard — — 22,113 22,104 Doubtful — — — — $ 33,690 $ 13,404 $ 2,380,577 $ 1,918,481
Acquired credit impaired loans
Loans and Allowance for Loan Losses
Summary of loans	December 31, (Dollars in thousands) 2017 2016 FASB ASC Topic 310-30 acquired loans: Commercial real estate $ 234,595 $ 218,821 Commercial real estate—construction and development 49,649 44,373 Residential real estate 260,787 258,100 Consumer 51,453 59,300 Commercial and industrial 26,946 25,347 Total FASB ASC Topic 310-30 acquired loans 623,430 605,941 Less allowance for loan losses (4,627) (3,395) FASB ASC Topic 310-30 acquired loans, net $ 618,803 $ 602,546
Schedule of contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting carrying values	December 31, (Dollars in thousands) 2017 2016 Contractual principal and interest $ 795,850 $ 778,822 Non-accretable difference (39,324) (17,502) Cash flows expected to be collected 756,526 761,320 Accretable yield (133,096) (155,379) Carrying value $ 623,430 $ 605,941 Allowance for acquired loan losses $ (4,627) $ (3,395)
Schedule of changes in the carrying value	Year Ended December 31, (Dollars in thousands) 2017 2016 2015 Balance at beginning of period $ 602,546 $ 733,870 $ 919,402 Fair value of acquired loans 126,781 — — Net reductions for payments, foreclosures, and accretion (109,292) (131,635) (189,191) Change in the allowance for loan losses on acquired loans (1,232) 311 3,659 Balance at end of period, net of allowance for loan losses on acquired loans $ 618,803 $ 602,546 $ 733,870
Schedule of refined accretable yield balance	Year Ended December 31, (Dollars in thousands) 2017 2016 2015 Balance at beginning of period $ 155,379 $ 201,538 $ 306,826 Addition from the SBFC acquisition 4,910 — — Addition from the PSC acquisition 8,829 — — Accretion (57,434) (72,757) (97,847) Reclass of nonaccretable difference due to improvement in expected cash flows 21,890 25,808 61,985 Other changes, net (478) 790 (69,426) Balance at end of period $ 133,096 $ 155,379 $ 201,538
Schedule of changes in allowance for loan losses	Commercial Real Estate- Commercial Construction and Residential Commercial (Dollars in thousands) Real Estate Development Real Estate Consumer and Industrial Single Pay Total Year Ended December 31, 2017: Allowance for loan losses: Balance, December 31, 2016 $ $ $ $ $ $ — $ Provision for loan losses before benefit attributable to FDIC loss share agreements 163 1,662 — Benefit attributable to FDIC loss share agreements — — — — — — — Total provision for loan losses charged to operations 163 1,662 — Provision for loan losses recorded through the FDIC loss share receivable — — — — — — — Reduction due to loan removals — — Balance, December 31, 2017 $ $ $ $ $ $ — $ Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment $ $ $ $ $ $ — $ Loans:* Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment — Total acquired credit impaired loans $ $ $ $ $ $ — $ Year Ended December 31, 2016: Allowance for loan losses: Balance, December 31, 2015 $ 56 $ 177 $ 2,986 $ 313 $ 174 $ — $ 3,706 Provision for loan losses before benefit attributable to FDIC loss share agreements 1 — (129) 533 183 — 588 Benefit attributable to FDIC loss share agreements — — 23 — — — 23 Total provision for loan losses charged to operations 1 — (106) 533 183 — 611 Provision for loan losses recorded through the FDIC loss share receivable — — (23) — — — (23) Reduction due to loan removals (16) (38) (438) (288) (119) — (899) Balance, December 31, 2016 $ 41 $ 139 $ 2,419 $ 558 $ 238 $ — $ 3,395 Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment $ 41 $ 139 $ 2,419 $ 558 $ 238 $ — $ 3,395 Loans:* Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment 218,821 44,373 258,100 59,300 25,347 — 605,941 Total acquired credit impaired loans $ 218,821 $ 44,373 $ 258,100 $ 59,300 $ 25,347 $ — $ 605,941 Year Ended December 31, 2015: Allowance for loan losses: Balance, December 31, 2014 $ 1,579 $ 336 $ 4,387 $ 275 $ 718 $ 70 $ 7,365 Provision for loan losses before benefit attributable to FDIC loss share agreements (499) (68) 99 336 (118) (2) (252) Benefit attributable to FDIC loss share agreements 459 74 228 (107) 131 1 786 Total provision for loan losses charged to operations (40) 6 327 229 13 (1) 534 Provision for loan losses recorded through the FDIC loss share receivable (459) (74) (228) 107 (131) (1) (786) Reduction due to loan removals (1,024) (91) (1,500) (298) (426) (68) (3,407) Balance, December 31, 2015 $ 56 $ 177 $ 2,986 $ 313 $ 174 $ — $ 3,706 Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment $ 56 $ 177 $ 2,986 $ 313 $ 174 $ — $ 3,706 Loans:* Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment 268,058 54,272 313,319 70,734 31,193 — 737,576 Total acquired credit impaired loans $ 268,058 $ 54,272 $ 313,319 $ 70,734 $ 31,193 $ — $ 737,576 * The carrying value of acquired credit impaired loans includes a non‑accretable difference which is primarily associated with the assessment of credit quality of acquired loans.
Schedule of credit risk profile by risk grade of loans	Commercial Real Estate— Construction and Commercial Real Estate Development December 31, December 31, (Dollars in thousands) 2017 2016 2017 2016 Pass $ 177,231 $ 171,167 $ 29,620 $ 21,150 Special mention 28,708 26,238 5,132 12,643 Substandard 28,656 21,416 14,897 10,580 Doubtful — — — — $ 234,595 $ 218,821 $ 49,649 $ 44,373 Residential Real Estate Consumer Commercial & Industrial December 31, December 31, December 31, 2017 2016 2017 2016 2017 2016 Pass $ 135,974 $ 138,343 $ 8,001 $ 8,513 $ 18,522 $ 17,371 Special mention 54,500 52,546 17,214 19,685 1,169 4,614 Substandard 70,313 67,211 26,238 31,102 7,255 3,362 Doubtful — — — — — — $ 260,787 $ 258,100 $ 51,453 $ 59,300 $ 26,946 $ 25,347 Total Acquired Credit Impaired Loans December 31, 2017 2016 Pass $ 369,348 $ 356,544 Special mention 106,723 115,726 Substandard 147,359 133,671 Doubtful — — $ 623,430 $ 605,941
Aging analysis of past due loans, segregated by class of loans	30 - 59 Days 60 - 89 Days 90+ Days Total Total (Dollars in thousands) Past Due Past Due Past Due Past Due Current Loans December 31, 2017 Commercial real estate $ 2,519 $ 3,669 $ 2,825 $ 9,013 $ 225,582 $ 234,595 Commercial real estate—construction and development 811 427 3,761 4,999 44,650 49,649 Residential real estate 5,895 4,283 8,824 19,002 241,785 260,787 Consumer 989 452 889 2,330 49,123 51,453 Commercial and industrial 596 167 406 1,169 25,777 26,946 $ 10,810 $ 8,998 $ 16,705 $ 36,513 $ 586,917 $ 623,430 December 31, 2016 Commercial real estate $ 573 $ 357 $ 2,667 $ 3,597 $ 215,224 $ 218,821 Commercial real estate—construction and development 168 489 3,612 4,269 40,104 44,373 Residential real estate 4,688 1,105 6,777 12,570 245,530 258,100 Consumer 1,412 381 1,231 3,024 56,276 59,300 Commercial and industrial 46 24 536 606 24,741 25,347 $ 6,887 $ 2,356 $ 14,823 $ 24,066 $ 581,875 $ 605,941
Acquired non-credit impaired non-accrual loans
Loans and Allowance for Loan Losses
Summary of information pertaining to nonaccrual loans by class	December 31, (Dollars in thousands) 2017 2016 Commercial non-owner occupied real estate: Construction and land development $ $ Commercial non-owner occupied - - Total commercial non-owner occupied real estate Consumer real estate: Consumer owner occupied Home equity loans Total consumer real estate Commercial owner occupied real estate Commercial and industrial Other income producing property Consumer Total loans on nonaccrual status $ $
Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Summary of loans	December 31, (Dollars in thousands) 2017 2016 FASB ASC Topic 310-20 acquired loans: Commercial non-owner occupied real estate: Construction and land development $ 403,357 $ 10,090 Commercial non-owner occupied 817,166 34,628 Total commercial non-owner occupied real estate 1,220,523 44,718 Consumer real estate: Consumer owner occupied 710,611 408,270 Home equity loans 320,591 160,879 Total consumer real estate 1,031,202 569,149 Commercial owner occupied real estate 521,818 27,195 Commercial and industrial 398,696 13,641 Other income producing property 196,669 39,342 Consumer 137,710 142,654 Other 1,289 — Total FASB ASC Topic 310-20 acquired loans $ 3,507,907 $ 836,699
Schedule of changes in allowance for loan losses	Construction Commercial Commercial Consumer Other Income & Land Non-owner Owner Owner Home Commercial Producing (Dollars in thousands) Development Occupied Occupied Occupied Equity & Industrial Property Consumer Other Total Year Ended December 31, 2017 Allowance for loan losses: Balance at beginning of period $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Charge-offs (82) — — (150) (859) (71) — (468) — (1,630) Recoveries 4 — 2 41 393 6 8 23 — 477 Provision (benefit) 78 — (2) 109 466 65 (8) 445 — 1,153 Balance, December 31, 2017 $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans: Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment 403,357 817,166 521,818 710,611 320,591 398,696 196,669 137,710 1,289 3,507,907 Total acquired non-credit impaired loans $ 403,357 $ 817,166 $ 521,818 $ 710,611 $ 320,591 $ 398,696 $ 196,669 $ 137,710 $ 1,289 $ 3,507,907 Year Ended December 31, 2016 Allowance for loan losses: Balance at beginning of period $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Charge-offs — — 39 — (428) (66) — (532) — (987) Recoveries 4 — — 12 199 9 43 51 — 318 Provision (benefit) (4) — (39) (12) 229 57 (43) 481 — 669 Balance, December 30, 2016 $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans: Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment 10,090 34,628 27,195 408,270 160,879 13,641 39,342 142,654 — 836,699 Total acquired non-credit impaired loans $ 10,090 $ 34,628 $ 27,195 $ 408,270 $ 160,879 $ 13,641 $ 39,342 $ 142,654 $ — $ 836,699 Year Ended December 31, 2015 Allowance for loan losses: Balance at beginning of period $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Charge-offs — — — (360) (1,662) (118) (4) (643) — (2,787) Recoveries 4 — — 102 237 19 4 21 — 387 Provision (benefit) (4) — — 258 1,425 99 — 622 — 2,400 Balance, December 31, 2015 $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans: Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment 13,849 40,103 39,220 518,107 190,968 25,475 51,169 170,647 — 1,049,538 Total acquired non-credit impaired loans $ 13,849 $ 40,103 $ 39,220 $ 518,107 $ 190,968 $ 25,475 $ 51,169 $ 170,647 $ — $ 1,049,538
Schedule of credit risk profile by risk grade of loans	Total Acquired Non-credit Impaired Loans December 31, (Dollars in thousands) 2017 2016 Pass $ 3,438,030 $ 812,320 Special mention 49,868 13,355 Substandard 20,009 11,024 Doubtful — — $ 3,507,907 $ 836,699
Aging analysis of past due loans, segregated by class of loans	30 - 59 Days 60 - 89 Days 90+ Days Total Total (Dollars in thousands) Past Due Past Due Past Due Past Due Current Loans December 31, 2017 Commercial real estate: Construction and land development $ 675 $ 113 $ 101 $ 889 $ 402,468 $ 403,357 Commercial non-owner occupied 12 321 — 333 816,833 817,166 Commercial owner occupied 642 — 189 831 520,987 521,818 Consumer real estate: Consumer owner occupied 673 204 867 1,744 708,867 710,611 Home equity loans 3,639 609 1,704 5,952 314,639 320,591 Commercial and industrial 5,996 1,278 143 7,417 391,279 398,696 Other income producing property 327 — 250 577 196,092 196,669 Consumer 400 114 1,351 1,865 135,845 137,710 Other — — — — 1,289 1,289 $ $ $ $ $ $ December 31, 2016 Commercial real estate: Construction and land development $ 4 $ — $ 160 $ 164 $ 9,926 $ 10,090 Commercial non-owner occupied — — — — 34,628 34,628 Commercial owner occupied — — 106 106 27,089 27,195 Consumer real estate: Consumer owner occupied 330 113 256 699 407,571 408,270 Home equity loans 476 941 741 2,158 158,721 160,879 Commercial and industrial 2 — — 2 13,639 13,641 Other income producing property 131 1 — 132 39,210 39,342 Consumer 437 210 576 1,223 141,431 142,654 $ 1,380 $ 1,265 $ 1,839 $ 4,484 $ 832,215 $ 836,699
Acquired non-credit impaired loans | Commercial non-owner occupied real estate
Loans and Allowance for Loan Losses
Schedule of credit risk profile by risk grade of loans	Commercial Non-owner Construction & Development Occupied Commercial Owner Occupied December 31, December 31, December 31, (Dollars in thousands) 2017 2016 2017 2016 2017 2016 Pass $ 394,139 $ 8,997 $ 809,241 $ 28,368 $ 513,861 $ 26,920 Special mention 4,602 253 7,913 6,171 7,740 — Substandard 4,616 840 12 89 217 275 Doubtful — — — — — — $ 403,357 $ 10,090 $ 817,166 $ 34,628 $ 521,818 $ 27,195 Other Income Producing Commercial & Industrial Property Commercial Total December 31, December 31, December 31, 2017 2016 2017 2016 2017 2016 Pass $ 388,342 $ 13,475 $ 191,229 $ 38,361 $ 2,296,812 $ 116,121 Special mention 9,883 117 4,547 273 34,685 6,814 Substandard 471 49 893 708 6,209 1,961 Doubtful — — — — — — $ 398,696 $ 13,641 $ 196,669 $ 39,342 $ 2,337,706 $ 124,896
Acquired non-credit impaired loans | Consumer real estate
Loans and Allowance for Loan Losses
Schedule of credit risk profile by risk grade of loans	The following table presents the credit risk profile by risk grade of consumer loans for acquired non‑credit impaired loans: Consumer Owner Occupied Home Equity Consumer December 31, December 31, December 31, (Dollars in thousands) 2017 2016 2017 2016 2017 2016 Pass $ 703,557 $ 404,761 $ 301,842 $ 151,752 $ 134,530 $ 139,686 Special mention 4,165 1,326 10,477 4,113 541 1,102 Substandard 2,889 2,183 8,272 5,014 2,639 1,866 Doubtful — — — — — — $ 710,611 $ 408,270 $ 320,591 $ 160,879 $ 137,710 $ 142,654 Other Consumer Total December 31, December 31, 2017 2016 2017 2016 Pass $ 1,289 $ — $ 1,141,218 $ 696,199 Special mention — — 15,183 6,541 Substandard — — 13,800 9,063 Doubtful — — — — $ 1,289 $ — $ 1,170,201 $ 711,803

FDIC Indemnification Asset (Tab

FDIC Indemnification Asset (Tables)	12 Months Ended
	Dec. 31, 2017
FDIC Indemnification Asset
Schedule of changes in FDIC indemnification asset	Year Ended December 31, (Dollars in thousands) 2017 2016 2015 Balance at beginning of period $ — $ 4,401 $ 22,161 Decrease in expected losses on loans — (23) (788) Additional recoveries on OREO — (1,736) (5,440) Reimbursable expenses — 71 789 Amortization of discounts and premiums, net — (1,475) (8,587) Payments to (from) FDIC — 853 (3,734) Termination of Loss Share Agreements — (2,091) — Balance at end of period $ — $ — $ 4,401

Other Real Estate Owned (Tables

Other Real Estate Owned (Tables)	12 Months Ended
	Dec. 31, 2017
Other Real Estate Owned
Schedule of information pertaining to OREO	Covered (Dollars in thousands) OREO OREO Total Balance, December 31, 2014 $ 26,499 $ 16,227 $ 42,726 Transfers 2,245 (2,245) — Additions, net 21,419 9,283 30,702 Writedowns (3,163) (6,265) (9,428) Sold (22,197) (11,249) (33,446) Balance, December 31, 2015 Transfers — Additions, net 13,993 Writedowns (4,401) Sold (21,830) Balance, December 31, 2016 $ $ — $ Acquired in Southeastern Bank Financial Corp. acquisition — 385 Acquired in Park Sterling Corp. acquisition — 2,046 Additions, net — 11,558 Writedowns — Sold — Balance, December 31, 2017 $ $ — $

Premises and Equipment (Tables)

Premises and Equipment (Tables)	12 Months Ended
	Dec. 31, 2017
Premises and Equipment
Schedule of premises and equipment	December 31, (Dollars in thousands) Useful Life 2017 2016 Land $ 81,291 $ 56,454 Buildings and leasehold improvements 15 - 40 years 227,402 157,927 Equipment and furnishings 3 - 10 years 104,319 78,800 Construction in process 2,305 3,613 Total 415,317 296,794 Less accumulated depreciation (159,752) (113,284) $ 255,565 $ 183,510

Goodwill and Other Intangible47

Goodwill and Other Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2017
Goodwill and Other Intangible Assets
Summary of changes in the carrying amounts of goodwill	Year Ended December 31, (Dollars in thousands) 2017 2016 Balance at beginning of period $ 338,340 $ 338,340 Additions: Goodwill from Southeastern Bank Financial acquisition 258,295 — Goodwill from Park Sterling Financial merger 402,951 — Balance at end of period $ 999,586 $ 338,340
Summary of gross carrying amounts and accumulated amortization of other intangible assets	December 31, (Dollars in thousands) 2017 2016 Gross carrying amount $ 126,449 $ 82,154 Accumulated amortization (52,660) (42,306) $ 73,789 $ 39,848
Schedule of estimated amortization expense of intangibles assets	(Dollars in thousands) Year ended December 31: 2018 $ 13,614 2019 12,585 2020 11,419 2021 10,186 2022 8,918 Thereafter 17,067 $ 73,789

Deposits (Tables)

Deposits (Tables)	12 Months Ended
	Dec. 31, 2017
Deposits Disclosure Abstract
Schedule of total deposits	December 31, (Dollars in thousands) 2017 2016 Certificates of deposit $ 1,738,384 $ 872,773 Interest-bearing demand deposits 5,300,108 3,461,004 Non-interest bearing demand deposits 3,047,432 2,199,046 Savings deposits 1,443,918 799,615 Other time deposits 2,924 1,985 Total deposits $ 11,532,766 $ 7,334,423
Schedule of maturities of time deposits of all denominations	(Dollars in thousands) Year ended December 31: 2018 $ 1,131,167 2019 330,359 2020 111,836 2021 119,104 2022 40,581 Thereafter 8,261 $ 1,741,308

Federal Funds Purchased and S49

Federal Funds Purchased and Securities Sold Under Agreements to Repurchase (Tables)	12 Months Ended
	Dec. 31, 2017
Federal Funds Purchased and Securities Sold Under Agreements to Repurchase
Schedule of information concerning federal funds purchased and securities sold under agreements to repurchase	December 31, 2017 2016 2015 (Dollars in thousands) Amount Rate Amount Rate Amount Rate At period-end: Federal funds purchased and securities sold under repurchase agreements $ 286,857 0.45 % $ 313,773 0.24 % $ 288,231 0.19 % Average for the year: Federal funds purchased and securities sold under repurchase agreements $ 325,713 0.33 % $ 320,901 0.18 % $ 291,428 0.14 % Maximum month-end balance: Federal funds purchased and securities sold under repurchase agreements $ 401,786 $ 334,260 $ 320,373

Other Borrowings (Tables)

Other Borrowings (Tables)	12 Months Ended
	Dec. 31, 2017
Other Borrowings.
Schedule of other borrowings	The Company’s other borrowings were as follows: 2017 2016 Weighted Weighted Interest Average Interest Average Rate at Interest Rate at Interest (Dollars in thousands) Maturity 12/31/2017 Balance Rate 12/31/2016 Balance Rate Short-term borrowings: Federal Home Loan Bank Fixed Rate Credit 1/16/2018 % $ — $ — Federal Home Loan Bank Fixed Rate Credit 4/27/2018 % — — Total short-term borrowings % — — Long-term borrowings SCBT Capital Trust I junior subordinated debt (1) 6/15/2035 % % 12,372 SCBT Capital Trust II junior subordinated debt (1) 6/15/2035 % % 8,248 SCBT Capital Trust III junior subordinated debt (1) 7/18/2035 % % 20,619 SAVB Capital Trust I junior subordinated debt (1) 10/7/2033 % % 6,186 SAVB Capital Trust II junior subordinated debt (1) 12/15/2034 % % 4,124 TSB Statutory Trust I junior subordinated debt (1) 3/14/2037 % % 3,093 Southeastern Bank Financial Statutory Trust I junior subordinated debt (1) 12/15/2035 % — — Southeastern Bank Financial Statutory Trust II junior subordinated debt (1) 6/15/2036 % — — CSBC Statutory Trust I junior subordinated debt (1) 12/15/2035 % — — Community Capital Statutory Trust I junior subordinated debt (1) 6/15/2036 % — — FCRV Statutory Trust I junior subordinated debt (1) 12/15/2036 % — — Provident Community Bancshares Capital Trust I junior subordinated debt (1) 3/1/2037 % — — Provident Community Bancshares Capital Trust II junior subordinated debt (1) 10/1/2036 % — — Fair Market Value Discount Trust Preferred Debt Acquired (213) Other Various % % 929 Total long-term borrowings % 55,358 % Total borrowings $ 216,385 $ 55,358 All of the junior subordinated debt above is adjustable rate based on three-month LIBOR plus a spread ranging from 140 basis points to 285 basis points.
Summary of principal maturities of other borrowings	Junior Subordinated FHLB (Dollars in thousands) Debt Advances Other Total Year Ended December 31, 2018 $ — $ $ $ 2019 — — 2020 — — 2021 — — 2022 — — Thereafter — $ $ $ $

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2017
Income Taxes
Schedule of provision for income taxes	Year Ended December 31, (Dollars in thousands) 2017 2016 2015 Current: Federal $ 46,153 $ 37,187 $ 41,527 State 3,018 3,325 2,327 Total current tax expense 49,171 40,512 43,854 Deferred: Federal 31,971 11,684 6,344 State 109 564 704 Total deferred tax expense 32,080 12,248 7,048 Provision for income taxes $ 81,251 $ 52,760 $ 50,902
Analysis of difference between the provision for income taxes and taxes computed by applying the federal statutory income tax rate to income before provision for income taxes	Year Ended December 31, (Dollars in thousands) 2017 2016 2015 Income taxes at federal statutory rate $ 59,082 $ 53,915 $ 52,631 Increase (reduction) of taxes resulting from: State income taxes, net of federal tax benefit 2,032 2,527 1,970 Non-deductible merger expenses 586 686 — Tax-exempt interest (2,840) (1,956) (1,842) Income tax credits (1,951) (2,068) (1,781) Dividends received deduction (12) (12) (8) Revaluation of net deferred tax asset due to tax law change 26,558 — — Other, net (2,204) (332) (68) $ 81,251 $ 52,760 $ 50,902
Schedule of components of the net deferred tax asset	December 31, (Dollars in thousands) 2017 2016 Allowance for loan losses $ 11,011 $ 14,913 Other-than-temporary impairment on securities 257 295 Share-based compensation 3,935 3,915 Pension plan and post-retirement benefits 607 1,450 Deferred compensation 13,048 3,155 Purchase accounting adjustments 33,888 34,499 FDIC Acquisition 3,190 — Other real estate owned 838 962 Tax deductible goodwill 32 682 Net operating loss carryforwards 14,066 14,645 Cash flow hedge 54 190 Unrealized losses on investment securities available for sale 3,472 1,053 Other 643 688 Total deferred tax assets 85,041 76,447 FDIC Acquisition — 3,540 Depreciation 5,870 7,510 Intangible assets 14,745 11,239 Deferred loan fees 7,840 7,911 Prepaid expense 474 523 Mortgage servicing rights 6,818 10,380 Other 372 2,219 Total deferred tax liabilities 36,119 43,322 Net deferred tax assets before valuation allowance 48,922 33,125 Less, valuation allowance (3,020) (2,002) Net deferred tax assets $ 45,902 $ 31,123

Other Expense (Tables)

Other Expense (Tables)	12 Months Ended
	Dec. 31, 2017
Other Expense
Summary of the components of other noninterest expense	Year Ended December 31, (Dollars in thousands) 2017 2016 2015 Business development and staff related $ 7,449 $ 6,210 $ 6,642 Other loan expense 2,590 2,486 2,942 Director and shareholder expense 1,635 2,004 2,118 Armored carrier and courier expense 1,703 1,470 1,354 Property and sales tax 1,033 1,145 1,362 Other 9,310 8,016 7,031 $ 23,720 $ 21,331 $ 21,449

Earnings Per Common Share (Tabl

Earnings Per Common Share (Tables)	12 Months Ended
	Dec. 31, 2017
Earnings Per Share
Schedule of computation of basic and diluted earnings per share	Year Ended December 31, (Dollars and shares in thousands, except for per share amounts) 2017 2016 2015 Basic earnings per common share: Net income $ 87,554 $ 101,282 $ 99,473 Weighted-average basic common shares 29,686 23,998 23,966 Basic earnings per common share $ $ $ Diluted earnings per share: Net income $ 87,554 $ 101,282 $ 99,473 Weighted-average basic common shares 29,686 23,998 23,966 Effect of dilutive securities 236 221 258 Weighted-average dilutive shares 29,922 24,219 24,224 Diluted earnings per common share $ 2.93 $ 4.18 $ 4.11
Schedule of anti-dilutive securities excluded from computation of diluted earnings per common share	Year Ended December 31, (Dollars in thousands) 2017 2016 2015 Number of shares Range of exercise prices $ to $ $ to $ $ to $

Accumulated Other Comprehensi54

Accumulated Other Comprehensive Income (Loss) (Tables)	12 Months Ended
	Dec. 31, 2017
Accumulated Other Comprehensive Income (Loss)
Schedule of components of accumulated other comprehensive income (loss)	Unrealized Gains and Losses Gains and on Securities Losses on Benefit Available Cash Flow (Dollars in thousands) Plans for Sale Hedges Total Balance at December 31, 2014 $ (5,315) $ 5,467 $ (529) $ (377) Other comprehensive loss before reclassifications (1,332) (3,181) (104) (4,617) Amounts reclassified from accumulated other comprehensive income 632 302 189 1,123 Net comprehensive income (loss) (700) (2,879) 85 (3,494) Balance at December 31, 2015 (6,015) 2,588 (444) (3,871) Other comprehensive loss before reclassifications (749) (4,221) (34) (5,004) Amounts reclassified from accumulated other comprehensive income (loss) 569 (75) 170 664 Net comprehensive income (loss) (180) (4,296) 136 (4,340) Balance at December 31, 2016 (6,195) (1,708) (308) (8,211) Other comprehensive loss before reclassifications (365) (2,157) (13) (2,535) Amounts reclassified from accumulated other comprehensive income (loss) 562 (413) 170 319 Net comprehensive income (loss) 197 (2,570) 157 (2,216) Balance at December 31, 2017 $ (5,998) $ (4,278) $ (151) $ (10,427)
Schedule of reclassifications out of accumulated other comprehensive income (loss), net of tax	Amount Reclassified from Accumulated (Dollars in thousands) For the Years Ended December 31, Accumulated Other Comprehensive Income (Loss) Component 2017 2016 2015 Income Statement Line Item Affected Losses on cash flow hedges: Interest rate contracts $ 275 $ 275 $ 305 Interest expense (105) (105) (116) Provision for income taxes 170 170 189 Net income Gains on sales of available for sale securities: $ (1,421) $ (122) $ — Securities gains, net 542 47 — Provision for income taxes (879) (75) — Net income Other-than-temporary impairment losses on available for sale securities: $ 753 $ — $ 489 Other-than-temporary impairment losses (287) — (187) Provision for income taxes 466 — 302 Net income Amortization of defined benefit pension: Actuarial losses $ 908 $ 920 $ 1,021 Salaries and employee benefits (346) (351) (389) Provision for income taxes 562 569 632 Net income Total reclassifications for the period $ 319 $ 664 $ 1,123

Retirement Plans (Tables)

Retirement Plans (Tables) - Non-contributory defined benefit pension plan	12 Months Ended
	Dec. 31, 2017
Retirement Plans
Schedule of the pension plan's funded status and amounts recognized in the company's accompanying consolidated financial statements	December 31, (Dollars in thousands) 2017 2016 2015 Change in benefit obligation: Benefit obligation at beginning of year $ 28,800 $ 28,260 $ 28,002 Service cost 127 112 — Interest cost 1,124 1,132 1,017 Actuarial loss 2,665 435 132 Benefits paid (1,138) (1,015) (891) Expenses (78) (124) — Benefit obligation at end of year 31,500 28,800 28,260 Change in plan assets: Fair value of plan assets at beginning of year 28,216 27,444 28,451 Actual return on plan assets 4,387 1,911 (116) Employer contribution — — — Benefits paid (1,138) (1,015) (891) Expenses (78) (124) — Fair value of plan assets at end of year 31,387 28,216 27,444 Funded (unfunded) status $ (113) $ (584) $ (816)
Schedule of components of net periodic benefit cost and other amounts recognized in other comprehensive income	December 31, (Dollars in thousands) 2017 2016 2015 Interest cost $ $ 1,132 $ 1,017 Service cost 112 — Expected return on plan assets (2,131) (2,067) Recognized net actuarial loss 816 898 Net periodic pension benefit (71) (152) Net loss 655 2,315 Amortization of net loss (816) (898) Total amount recognized in other comprehensive income (161) 1,417 Total recognized in net periodic benefit cost and other comprehensive income $ $ (232) $ 1,265
Schedule of accumulated benefit obligations in excess of plan assets	December 31, (Dollars in thousands) 2017 2016 Projected benefit obligation $ 31,500 $ 28,800 Accumulated benefit obligation 31,500 28,800 Fair value of plan assets 31,387 28,216
Schedule of weighted average assumptions used to determine benefit obligations and net periodic benefit cost	Year ended December 31, 2017 2016 2015 Discount rate 4.00 % 4.10 % 3.70 % Expected long-term return on plan assets 7.75 % 7.75 % 7.75 %
Schedule of long-term rate of return and standard deviation assumptions used in developing long-term rate of return assumption for the pension plan	Rate of Standard Return Deviation Asset Class Assumption Assumption Cash Equivalents 3.00 % 0.46 % High Grade Fixed Income 6.17 % 3.42 % High Yield Fixed Income 8.37 % 8.47 % International Fixed Income 6.53 % 8.08 % Large Cap Equity 10.42 % 13.26 % Mid Cap Equity 11.61 % 15.75 % Mid/Small Cap Equity 10.46 % 16.98 % Foreign Equity 7.57 % 16.45 %
Schedule of fair values of the company's pension plan assets	Quoted Prices In Active Significant Markets Other Significant Fair Value for Identical Observable Unobservable December 31, Assets Inputs Inputs (Dollars in thousands) 2017 (Level 1) (Level 2) (Level 3) Cash and cash equivalents $ 18 $ 18 $ — $ — Money market funds 2,146 2,146 — — Broad market fixed income 9,041 9,041 — — Domestic equity 16,439 16,439 — — Foreign equity 3,743 3,743 — — Total assets $ 31,387 $ 31,387 $ — $ —
Schedule of estimated future benefit payments	(Dollars in thousands) 2018 $ 1,318 2019 1,382 2020 1,522 2021 1,604 2022 1,637 2023-2027 8,722 $ 16,185
Schedule of expenses incurred and charged against operations with regard to all of the company's retirement plans	Year Ended December 31, (Dollars in thousands) 2017 2016 2015 Pension $ $ (205) $ (152) Employee savings plan/ 401(k) 7,381 6,178 5,873 Supplemental executive retirement plan 1,334 134 306 Post-retirement benefits 251 192 212 $ 8,615 $ 6,299 $ 6,239

Post-Retirement Benefits (Table

Post-Retirement Benefits (Tables)	12 Months Ended
	Dec. 31, 2017
Retiree Medical Plan
Post-Retirement Benefits
Schedule of the plan's funded status and amounts recognized in the Company's accompanying consolidated financial statements	December 31, (Dollars in thousands) 2017 2016 2015 Change in benefit obligation: Benefit obligation at beginning of year $ 393 $ 422 $ 436 Interest cost 13 12 Actuarial loss 1 19 Benefits paid (45) Benefit obligation at end of year 337 393 422 Change in plan assets: Fair value of plan assets at beginning of year — — — Employer contribution 40 43 45 Benefits paid (45) Fair value of plan assets at end of year — — — Funded status $ $ $ (422)
Schedule of weighted average assumptions used to determine benefit obligations and net periodic benefit cost	Year Ended December 31, 2017 2016 2015 Weighted-average assumptions used to determine benefit obligation at December 31: Discount rate 3.20 % 3.50 % 3.30 % Weighted-average assumptions used to determine net periodic benefit cost for years ended December 31: Discount rate 3.50 % 3.30 % 3.00 % Assumed health care cost trend rates at December 31: Health care cost trend rate assumed for next year 5.00 % 5.00 % 5.00 %
Schedule of components of net periodic benefit cost and other amounts recognized in other comprehensive income	Year Ended December 31, (Dollars in thousands) 2017 2016 2015 Interest cost $ $ 13 $ 12 Recognized net actuarial loss 10 9 Net periodic benefit cost 23 21 Net loss 1 19 Amortization of loss (10) (9) Total amount recognized in other comprehensive income (9) 10 Total recognized in net periodic benefit cost and other comprehensive income $ $ 14 $ 31
Schedule of effects of one-percentage-point change in assumed health care cost trend rates	One-Percentage Point (Dollars in thousands) Increase Decrease Effect on total of interest cost $ 1 $ (1) Effect on postretirement benefit obligation 19 (17)
Schedule of estimated future benefit payments (including expected future service as appropriate)	(Dollars in thousands) 2018 $ 38 2019 37 2020 36 2021 34 2022 33 2023-2027 131 $ 309
Retiree Welfare Plan
Post-Retirement Benefits
Schedule of the plan's funded status and amounts recognized in the Company's accompanying consolidated financial statements	December 31, (Dollars in thousands) 2017 2016 2015 Change in benefit obligation: Benefit obligation at beginning of year $ $ $ 2,331 Interest cost 77 Participants’ contributions — — — Actuarial (gain) loss (105) Benefits paid (233) Less: Federal subsidy on benefits paid 12 15 22 Benefit obligation at end of year 2,092 Change in plan assets: Fair value of plan assets at beginning of year — — — Employer contribution 233 Participants’ contributions — — — Benefits paid (233) Fair value of plan assets at end of year — — — Funded status $ $ $ (2,092)
Schedule of weighted average assumptions used to determine benefit obligations and net periodic benefit cost	Year Ended December 31, 2017 2016 2015 Weighted-average assumptions used to determine benefit obligation at December 31: Discount rate 3.20 % 3.50 % 3.70 % Weighted-average assumptions used to determine net periodic benefit cost for years ended December 31: Discount rate 3.50 % 3.70 % 3.45 % Assumed health care cost trend rates at December 31: Health care cost trend rate assumed for next year 5.00 % 5.00 % 6.25 %
Schedule of components of net periodic benefit cost and other amounts recognized in other comprehensive income	Year Ended December 31, (Dollars in thousands) 2017 2016 2015 Interest cost $ 81 $ 74 $ 77 Recognized net actuarial loss 147 95 115 Net periodic benefit cost 228 169 192 Net (gain) loss 126 546 (106) Amortization of loss (115) Total amount recognized in other comprehensive income 451 (221) Total recognized in net periodic benefit cost and other comprehensive income $ 207 $ 620 $ (29)
Schedule of effects of one-percentage-point change in assumed health care cost trend rates	One-Percentage Point (Dollars in thousands) Increase Decrease Effect on aggregate service and interest cost $ 6 $ (6) Effect on postretirement benefit obligation 166 (150)
Schedule of estimated future benefit payments (including expected future service as appropriate)	Estimated future benefit payments (including expected future service as appropriate): (Dollars in thousands) 2018 $ 241 2019 236 2020 230 2021 222 2022 213 2023-2027 894 $ 2,036

Share-Based Compensation (Table

Share-Based Compensation (Tables)	12 Months Ended
	Dec. 31, 2017
Share-Based Compensation
Schedule of stock option activity	Year Ended December 31, 2017 2016 2015 Weighted Weighted Weighted Average Average Average Exercise Exercise Exercise Shares Price Shares Price Shares Price Outstanding at January 1, 2017 246,535 $ 42.53 285,405 $ 38.85 294,342 $ 35.91 Granted 33,634 91.23 25,682 63.79 26,430 61.74 Exercised (59,480) 33.03 (63,527) 34.70 (35,360) 31.51 Forfeited (2,000) 26.01 (1,025) 35.20 — — Expired — — — — (7) 31.72 Outstanding at December 31, 2017 218,689 52.75 246,535 42.53 285,405 38.85 Exercisable at December 31, 2017 148,702 41.62 185,758 36.33 227,130 34.48 Weighted-average fair value of options granted during the year $ 35.42 $ 25.19 $ 25.08
Schedule of information pertaining to options outstanding	Options Outstanding Options Exercisable Weighted Weighted Average Average Remaining Weighted Weighted Remaining Range of Number Contractual Average Number Average Contractual Exercise Prices Outstanding Life Exercise Price Outstanding Exercise Price Life $ 26.01 - $ 30.00 15,796 1.4 years $ 27.60 15,795 $ 27.60 $ 30.01 - $ 35.00 58,790 3.2 years $ 31.82 58,787 $ 31.82 $ 35.01 - $ 40.00 11,353 2.1 years $ 35.20 11,351 $ 35.20 $ 40.01 - $ 45.00 24,507 4.9 years $ 41.42 24,507 $ 41.42 $ 45.01 - $ 91.35 108,243 7.7 years $ 72.19 38,262 $ 64.50 218,689 5.4 years $ 52.75 148,702 $ 41.62 4.1 years
Schedule of weighted-average assumptions used in valuing options	Year ended December 31, 2015 Dividend yield % % % Expected life years years years Expected volatility % % % Risk-free interest rate % % %
Summary of nonvested restricted stock	Weighted- Average Grant-Date Restricted Stock Shares Fair Value Nonvested at January 1, 2017 183,014 $ 51.88 Granted 26,053 89.11 Vested (61,950) 47.94 Forfeited (4,425) 75.59 Nonvested at December 31, 2017 142,692 59.66
Vesting schedule of shares	Shares 2017 37,713 2018 34,337 2019 51,940 2020 3,905 2021 3,405 Thereafter 11,392 142,692
Summary of nonvested RSUs	Weighted- Average Grant-Date Restricted Stock Units Shares Fair Value Nonvested at January 1, 2017 107,876 $ 66.37 Granted 77,301 89.43 Vested (39,672) 68.31 Forfeited (1,518) 78.68 LTIP Adjustment (3,951) 63.93 Nonvested at December 31, 2017 140,036 78.49

Lease Commitments (Tables)

Lease Commitments (Tables)	12 Months Ended
	Dec. 31, 2017
Lease Commitments
Schedule of future minimum lease payments, by year and in the aggregate, under noncancellable operating leases with initial or remaining terms in excess of one year	(Dollars in thousands) Year Ended December 31, 2018 $ 6,301 2019 5,621 2020 5,164 2021 4,924 2022 4,447 Thereafter 18,508 $ 44,965

Financial Instruments with Of59

Financial Instruments with Off-Balance Sheet Risk (Tables)	12 Months Ended
	Dec. 31, 2017
Financial Instruments with Off-Balance Sheet Risk
Schedule of financial instruments of the subsidiary, whose contract amounts represent credit risk	December 31, (Dollars in thousands) 2017 2016 Commitments to extend credit $ 2,905,213 $ 1,670,097 Standby letters of credit and financial guarantees 30,444 16,930 $ 2,935,657 $ 1,687,027

Fair Value (Tables)

Fair Value (Tables)	12 Months Ended
	Dec. 31, 2017
Fair Value
Schedule of recorded amount of assets and liabilities measured at fair value on a recurring basis	Quoted Prices In Active Significant Markets Other Significant for Identical Observable Unobservable Assets Inputs Inputs (Dollars in thousands) Fair Value (Level 1) (Level 2) (Level 3) December 31, 2017: Assets Derivative financial instruments $ 3,306 $ — $ 3,306 $ — Loans held for sale 70,890 — 70,890 — Securities available for sale: Government-sponsored entities debt 85,509 — 85,509 — State and municipal obligations 220,437 — 220,437 — Mortgage-backed securities 1,340,687 — 1,340,687 — Corporate securities 4,077 — 4,077 — Total securities available for sale 1,650,710 — 1,650,710 — Mortgage servicing rights 31,119 — — 31,119 $ 1,756,025 $ — $ 1,724,906 $ 31,119 Liabilities Derivative financial instruments $ 3,248 $ — $ 3,248 $ — December 31, 2016: Assets Derivative financial instruments $ 2,606 $ — $ 2,606 $ — Loans held for sale 50,572 — 50,572 — Securities available for sale: Government-sponsored entities debt 84,642 — 84,642 — State and municipal obligations 107,402 — 107,402 — Mortgage-backed securities 803,577 — 803,577 — Corporate securities 3,784 2,559 1,225 — Total securities available for sale 999,405 2,559 996,846 — Mortgage servicing rights 29,037 — — 29,037 $ 1,081,620 $ 2,559 $ 1,050,024 $ 29,037 Liabilities Derivative financial instruments $ 730 $ — $ 730 $ —
Schedule of reconciliation of the beginning and ending balances of Level 3 assets and liabilities recorded at fair value on a recurring basis	(Dollars in thousands) Assets Liabilities Fair value, January 1, 2017 $ 29,037 $ — Servicing assets that resulted from transfers of financial assets 6,439 — Changes in fair value due to valuation inputs or assumptions (595) — Changes in fair value due to decay (3,762) — Fair value , December 31, 2017 $ 31,119 $ — Fair value, January 1, 2016 $ 26,202 $ — Servicing assets that resulted from transfers of financial assets 6,428 — Changes in fair value due to valuation inputs or assumptions 560 — Changes in fair value due to decay (4,153) — Fair value, December 31, 2016 $ 29,037 $ —
Schedule of amounts of assets and liabilities measured at fair value on a nonrecurring basis	Quoted Prices In Active Significant Markets Other Significant for Identical Observable Unobservable Assets Inputs Inputs (Dollars in thousands) Fair Value (Level 1) (Level 2) (Level 3) December 31, 2017: OREO $ 11,203 $ — $ — $ 11,203 Non-acquired impaired loans 10,495 — — 10,495 December 31, 2016: OREO $ 18,316 $ — $ — $ 18,316 Non-acquired impaired loans 6,611 — — 6,611
Quantitative Information about Level 3 Fair Value Measurements	Weighted Average December 31, December 31, Valuation Technique Unobservable Input 2017 2016 Nonrecurring measurements: Non-acquired impaired loans Discounted appraisals Collateral discounts 3 % 6 % OREO Discounted appraisals Collateral discounts and estimated costs to sell 21 % 18 %
Schedule of estimated fair value, and related carrying amount, of the Company's financial instruments	Carrying Fair (Dollars in thousands) Amount Value Level 1 Level 2 Level 3 December 31, 2017 Financial assets: Cash and cash equivalents $ 377,627 $ 377,627 $ 377,627 $ — $ — Investment securities 1,673,769 1,673,796 20,530 1,653,266 — Loans held for sale 70,890 70,890 — 70,890 — Loans, net of allowance for loan losses 10,575,417 10,724,264 — — 10,724,264 Accrued interest receivable 32,727 32,727 — 7,051 25,676 Mortgage servicing rights 31,119 31,119 — — 31,119 Interest rate swap - non-designated hedge 2,367 2,367 — 2,367 — Other derivative financial instruments (mortgage banking related) 939 939 — 939 — Financial liabilities: Deposits 11,532,766 10,796,380 — 10,796,380 — Federal funds purchased and securities sold under agreements to repurchase 286,857 286,857 — 286,857 — Other borrowings 216,385 219,421 — 219,421 — Accrued interest payable 2,789 2,789 — 2,789 — Interest rate swap - non-designated hedge 2,750 2,750 — 2,750 — Interest rate swap - cash flow hedge 246 246 — 246 — Other derivative financial instruments (mortgage banking related) 252 252 — 252 — Off balance sheet financial instruments: Commitments to extend credit — 41,319 — 41,319 — December 31, 2016 Financial assets: Cash and cash equivalents $ 374,448 $ 374,448 $ 374,448 $ — $ — Investment securities 1,014,981 1,015,137 12,041 1,003,096 — Loans held for sale 50,572 50,572 — 50,572 — Loans, net of allowance for loan losses 6,643,326 6,649,575 — — 6,649,575 Accrued interest receivable 18,618 18,618 — 3,642 14,976 Mortgage servicing rights 29,037 29,037 — — 29,037 Interest rate swap - non-designated hedge 203 203 — 203 — Other derivative financial instruments (mortgage banking related) 2,403 2,403 — 2,403 — Financial liabilities: Deposits 7,334,423 6,935,867 — 6,935,867 — Federal funds purchased and securities sold under agreements to repurchase 313,773 313,773 — 313,773 — Other borrowings 55,358 54,379 — 54,379 — Accrued interest payable 1,359 1,359 — 1,359 — Interest rate swap - non-designated hedge 181 181 — 181 — Interest rate swap - cash flow hedge — — Other derivative financial instruments (mortgage banking related) 51 51 — 51 — Off balance sheet financial instruments: Commitments to extend credit — 1,587 — 1,587 —

Regulatory Matters (Tables)

Regulatory Matters (Tables)	12 Months Ended
	Dec. 31, 2017
Capital Ratios
Schedule of actual and required capital ratios	The following table presents actual and required capital ratios as of December 31, 2017 for the Company and the Bank under the Basel III capital rules. The minimum required capital amounts presented include the minimum required capital levels as of December 31, 2017 based on the phase-in provisions of the Basel III Capital Rules and the minimum required capital levels as of January 1, 2019 when the Basel III Capital Rules have been fully phased-in. Capital levels required to be considered well capitalized are based upon prompt corrective action regulations, as amended to reflect the changes under the Basel III Capital Rules. Minimum Capital Minimum Capital Required to be Required - Basel III Required - Basel III Considered Well Actual Phase-In Schedule Fully Phased In Capitalized (Dollars in thousands) Amount Ratio Capital Amount Ratio Capital Amount Ratio Capital Amount Ratio December 31, 2017 Common equity Tier 1 to risk-weighted assets: Consolidated $ 1,273,547 11.59 % $ 631,811 5.75 % $ 769,162 7.00 % $ 714,221 6.50 % South State Bank (the Bank) 1,360,603 12.38 % 631,741 5.75 % 769,077 7.00 % 714,143 6.50 % Tier 1 capital to risk-weighted assets: Consolidated 1,384,433 12.60 % 796,632 7.25 % 933,982 8.50 % 879,042 8.00 % South State Bank (the Bank) 1,360,603 12.38 % 796,544 7.25 % 933,879 8.50 % 878,945 8.00 % Total capital to risk-weighted assets: Consolidated 1,432,843 13.04 % 1,016,392 9.25 % 1,153,742 10.50 % 1,098,802 10.00 % South State Bank (the Bank) 1,409,014 12.82 % 1,016,280 9.25 % 1,153,615 10.50 % 1,098,681 10.00 % Tier 1 capital to average assets (leverage ratio): Consolidated 1,384,433 10.36 % 534,460 4.00 % 534,460 4.00 % 668,075 5.00 % South State Bank (the Bank) 1,360,603 10.18 % 534,390 4.00 % 534,390 4.00 % 667,987 5.00 % December 31, 2016: Common equity Tier 1 to risk-weighted assets: Consolidated $ 788,544 11.66 % $ 346,730 5.125 % $ 473,582 7.00 % $ 439,755 6.50 % South State Bank (the Bank) 815,823 12.06 % 346,629 5.125 % 473,444 7.00 % 439,627 6.50 % Tier 1 capital to risk-weighted assets: Consolidated 841,266 12.43 % 448,212 6.625 % 575,064 8.50 % 541,237 8.00 % South State Bank (the Bank) 815,823 12.06 % 448,081 6.625 % 574,896 8.50 % 541,079 8.00 % Total capital to risk-weighted assets: Consolidated 881,957 13.04 % 583,521 8.625 % 710,374 10.50 % 676,546 10.00 % South State Bank (the Bank) 856,388 12.66 % 583,351 8.625 % 710,166 10.50 % 676,349 10.00 % Tier 1 capital to average assets (leverage ratio): Consolidated 841,266 9.88 % 340,612 4.00 % 340,612 4.00 % 425,765 5.00 % South State Bank (the Bank) 815,823 9.58 % 340,483 4.00 % 340,483 4.00 % 425,604 5.00 %

Condensed Financial Statement62

Condensed Financial Statements of Parent Company (Tables)	12 Months Ended
	Dec. 31, 2017
Condensed Financial Statements of Parent Company
Schedule of condensed balance sheet	December 31, (Dollars in thousands) 2017 2016 ASSETS Cash $ 25,879 $ 27,775 Investment securities available for sale — 631 Investment in subsidiary 2,399,744 1,163,616 Other assets 1,111 1,235 Total assets $ 2,426,734 $ 1,193,257 LIABILITIES AND SHAREHOLDERS’ EQUITY Liabilities $ 117,813 $ 58,669 Shareholders’ equity 2,308,921 1,134,588 Total liabilities and shareholders’ equity $ 2,426,734 $ 1,193,257
Schedule of condensed statements of income	Year Ended December 31, (Dollars in thousands) 2017 2016 2015 Income: Dividends from subsidiary $ 63,703 $ 36,328 $ 82,765 Operating income 580 177 38 Total income 64,283 36,505 82,803 Operating expenses 15,482 12,688 8,883 Income before income tax benefit and equity in undistributed earnings of subsidiaries 48,801 23,817 73,920 Applicable income tax benefit 5,053 4,270 2,975 Equity in undistributed earnings of subsidiary (excess distribution) 33,700 73,195 22,578 Net income 87,554 101,282 99,473 Preferred stock dividends — — — Net income available to common shareholders $ 87,554 $ 101,282 $ 99,473
Schedule of condensed statements of cash flows	Year Ended December 31, (Dollars in thousands) 2017 2016 2015 Cash flows from operating activities: Net income $ $ 101,282 $ 99,473 Adjustments to reconcile net income to net cash provided by operating activities: Depreciation and amortization 222 355 Share-based compensation 6,220 5,803 Gain on sale of securities available for sale (122) — Decrease (increase) in other assets 26 (296) (Decrease) increase in other liabilities 3,750 (1,648) Undistributed earnings of subsidiary (73,195) (22,578) Net cash provided by operating activities 38,183 81,109 Cash flows from investing activities: Proceeds from sales and calls of other investment securities 137 1,392 Payments for investments in subsidiaries — — (384) Net cash inflow from acquisitions 15,468 — — Net cash provided by investing activities 16,155 137 1,008 Cash flows from financing activities: Repayment of other borrowings (30,000) — (46,392) Common stock issuance 925 908 Common stock repurchased (5,981) (5,631) Dividends paid on common stock (29,285) (23,710) Stock options exercised 2,204 1,115 Net cash used in financing activities (32,137) (73,710) Net increase (decrease) in cash and cash equivalents 6,183 8,407 Cash and cash equivalents at beginning of period 21,592 13,185 Cash and cash equivalents at end of period $ $ 27,775 $ 21,592

Derivative Financial Instrume63

Derivative Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2017
Derivative Financial Instruments
Derivative financial instruments summary	December 31, 2017 December 31, 2016 Balance Sheet Notional Estimated Fair Value Notional Estimated Fair Value (Dollars in thousands) Location Amount Gain Loss Amount Gain Loss Cash flow hedges of interest rate risk: Pay fixed rate swap with counterparty Other Liabilities $ 8,000 $ — $ 246 $ 8,000 $ — $ 498 Fair value hedge of interest rate risk: Pay fixed rate swap with counterparty Other Liabilities $ 2,824 $ — $ 92 $ — $ — $ — Not designated hedges of interest rate risk: Customer related interest rate contracts: Matched interest rate swaps with borrowers Other Assets and Other Liabilities $ 275,736 $ 1,899 $ 2,658 $ 13,860 $ 203 $ — Matched interest rate swaps with counterparty Other Assets and Other Liabilities $ 275,736 $ 468 $ — $ 13,860 $ — $ 181 Not designated hedges of interest rate risk - mortgage banking activities: Contracts used to hedge mortgage servicing rights Other Assets $ 94,000 $ — $ 252 $ 95,500 $ — $ 52 Forward sales commitments used to hedge mortgage pipeline Other Assets $ 89,317 $ 939 $ — $ 97,092 2,403 $ — Total derivatives $ 745,613 $ 3,306 $ 3,248 $ 228,312 $ 2,606 $ 731
Schedule of notional value of forward sale commitments and the fair value of those obligations along with the fair value of the mortgage pipeline	December 31, (Dollars in thousands) 2017 2016 Mortgage loan pipeline $ 71,477 $ 85,445 Expected closures 53,608 64,083 Fair value of mortgage loan pipeline commitments 920 1,037 Forward sales commitments 89,317 97,092 Fair value of forward commitments 19 1,366

Loan Servicing, Mortgage Orig64

Loan Servicing, Mortgage Origination, and Loans Held for Sale (Tables)	12 Months Ended
	Dec. 31, 2017
Loan Servicing, Mortgage Origination, and Loans Held for Sale
Summary of changes in the fair value of MSRs and its offsetting hedge	Year Ended December 31, (Dollars in thousands) 2017 2016 2015 Increase (decrease) in fair value of MSRs $ $ 560 $ 1,015 Decay of MSRs (4,153) (3,371) Gain (loss) related to derivatives (402) 751 Net effect on statements of income $ $ (3,995) $ (1,605)
Schedule of characteristics and sensitivity analysis of the MSR	December 31, (Dollars in thousands) 2017 2016 Composition of residential loans serviced for others Fixed-rate mortgage loans 99.7 % 99.6 % Adjustable-rate mortgage loans 0.3 % 0.4 % Total 100.0 % 100.0 % Weighted average life years 7.70 years Constant Prepayment rate (CPR) 7.7 % 7.7 % Weighted average discount rate 9.6 % 9.8 % Effect on fair value due to change in interest rates 25 basis point increase $ 1,485 $ 1,399 50 basis point increase 2,664 2,557 25 basis point decrease (1,850) (1,713) 50 basis point decrease (4,014) (3,670)

Summary of Significant Accoun65

Summary of Significant Accounting Policies - Operations, Segments - (Details) $ in Millions	12 Months Ended
	Dec. 31, 2017USD ($)subsidiarytrustcounty
Nature of Operations
Number of unconsolidated subsidiaries | subsidiary	13
Unconsolidated subsidiaries
Nature of Operations
Number of trusts | trust	13
Trust preferred securities to be issued	$ 115
SCBT Capital Trust I
Nature of Operations
Trust preferred securities to be issued	12
SCBT Capital Trust II
Nature of Operations
Trust preferred securities to be issued	8
SCBT Capital Trust III
Nature of Operations
Trust preferred securities to be issued	20
TSB Statutory Trust I
Nature of Operations
Trust preferred securities to be issued	3
SAVB Capital Trust I
Nature of Operations
Trust preferred securities to be issued	6
SAVB Capital Trust II
Nature of Operations
Trust preferred securities to be issued	4
SBFST Capital Trust !
Nature of Operations
Trust preferred securities to be issued	10
SBFST Capital Trust II
Nature of Operations
Trust preferred securities to be issued	10
Provident Community Bancshares Capital Trust I
Nature of Operations
Trust preferred securities to be issued	4
FCRV Statutory Trust I
Nature of Operations
Trust preferred securities to be issued	5
Community Capital Statutory Trust I
Nature of Operations
Trust preferred securities to be issued	10
CSBC Statutory Trust I
Nature of Operations
Trust preferred securities to be issued	15
Provident Community Bancshares Capital Trust II
Nature of Operations
Trust preferred securities to be issued	$ 8
South Carolina
Nature of Operations
Number of counties | county	29
North Carolina
Nature of Operations
Number of counties | county	9
Northeast Georgia
Nature of Operations
Number of counties | county	19

Summary of Significant Accoun66

Summary of Significant Accounting Policies - Concentrations of Credit Risk- (Details) - Concentrations of Credit Risk $ in Millions	Dec. 31, 2017USD ($)item
Concentrations of Credit Risk
Concentration risk threshold, total risk-based capital threshold (as a percent)	25.00%
Concentration risk threshold, total risk-based capital threshold	$ 358.2
Number of credit concentrations for non-acquired credit impaired loans | item	4
Lessors of residential and buildings
Concentrations of Credit Risk
Concentration risk threshold, total risk-based capital threshold	$ 524.1
Lessors of nonresidential buildings
Concentrations of Credit Risk
Concentration risk threshold, total risk-based capital threshold	1,300
Loans to religious organizations
Concentrations of Credit Risk
Concentration risk threshold, total risk-based capital threshold	358.6
Loans for construction
Concentrations of Credit Risk
Concentration risk threshold, total risk-based capital threshold	$ 545.8

Summary of Significant Accoun67

Summary of Significant Accounting Policies - Intangible assets, Transfer of financial assets (Details)	Apr. 30, 2017USD ($)	Dec. 31, 2017USD ($)item
Intangible Assets
Number of reportable operating segments | item		2
Impairment Charges	$ 0	$ 0
Excess tax benefits recorded against income tax expense		$ 1,547,000
Minimum
Intangible Assets
Estimated useful lives of intangibles		2 years
Maximum
Intangible Assets
Estimated useful lives of intangibles		15 years
Core deposit intangibles | Minimum
Intangible Assets
Estimated useful lives of intangibles		10 years
Core deposit intangibles | Maximum
Intangible Assets
Estimated useful lives of intangibles		13 years
Noncompete intangibles | Minimum
Intangible Assets
Estimated useful lives of intangibles		2 years
Noncompete intangibles | Maximum
Intangible Assets
Estimated useful lives of intangibles		3 years
Client list intangibles
Intangible Assets
Estimated useful lives of intangibles		15 years

Mergers and Acquisitions - (Det

Mergers and Acquisitions - (Details) $ in Thousands	Nov. 30, 2017USD ($)shares	Jan. 03, 2017USD ($)shares	Aug. 21, 2015USD ($)locationitem	Dec. 31, 2017USD ($)	Dec. 31, 2016USD ($)
Mergers and Acquisitions
Deferred tax assets				$ 85,041	$ 76,447
Deferred Tax Liabilities, Gross				$ 36,119	$ 43,322
Bank of America
Mergers and Acquisitions
Number of full service branches | item			12
Total purchase price			$ 25,019
Deferred tax assets			0
Deferred Tax Liabilities, Gross			$ 0
Bank of America | Georgia Branch
Mergers and Acquisitions
Number of full service branches | location			1
Bank of America | South Carolina Branch
Mergers and Acquisitions
Number of full service branches | location			12
Southeastern Bank Financial
Mergers and Acquisitions
Fixed exchange ratio for shares issued (in shares)		0.7307
Common stock shares issued | shares		4,978,338
Total purchase price		$ 435,115
Value of stock options		$ 490
Park Sterling Corporation
Mergers and Acquisitions
Fixed exchange ratio for shares issued (in shares)	0.14
Common stock shares issued | shares	7,480,343
Total purchase price	$ 692,959
Value of stock options	$ 4,305

Mergers and Acquisitions- Park

Mergers and Acquisitions- Park & SBFC - (Details)	Nov. 30, 2017USD ($)$ / sharesshares	Jan. 03, 2017USD ($)$ / sharesshares	Aug. 21, 2015USD ($)	Dec. 31, 2017USD ($)	Dec. 31, 2017USD ($)	Dec. 31, 2017USD ($)	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Deposit Liabilities [Abstract]
Federal funds purchased and securities sold under agreements to repurchase				$ 286,857,000	$ 286,857,000	$ 286,857,000	$ 313,773,000
Goodwill				999,586,000	999,586,000	999,586,000	338,340,000	$ 338,340,000
Additional information
Provisional income tax expense						26,600,000
Proforma amounts
Total revenues (net interest income plus noninterest income), Pro Forma						690,716,000	684,532,000
Net operating income available to the common shareholder, Pro Forma						146,821,000	$ 164,479,000
Bank of America
Business Combination Recognized Identifiable Assets Acquired [Abstract]
Cash and cash equivalents			$ 428,567,000
Loans, net of allowance and mark			3,150,000
Premises and equipment			4,129,000
Intangible assets			6,800,000
Other assets			66,000
Total assets			442,712,000
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Deposit Liabilities [Abstract]
Noninterest-bearing			97,440,000
Interest-bearing			340,849,000
Total deposits			438,289,000
Other liabilities (acquired)			56,000
Total liabilities			438,345,000
Net identifiable assets acquired over (under) liabilities assumed			4,367,000
Goodwill			20,652,000
Net assets acquired over liabilities assumed			25,019,000
Consideration:
Business combination deposit premium paid			25,019,000
Fair value of total consideration transferred			25,019,000
Additional information
Core deposit intangible			$ 6,800,000
Percentage of average daily deposits for thirty day period			5.5
Bank of America | As previously recorded by acquiree
Business Combination Recognized Identifiable Assets Acquired [Abstract]
Cash and cash equivalents			$ 428,567,000
Loans, net of allowance and mark			3,445,000
Premises and equipment			6,267,000
Other assets			66,000
Total assets			438,345,000
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Deposit Liabilities [Abstract]
Noninterest-bearing			97,440,000
Interest-bearing			340,849,000
Total deposits			438,289,000
Other liabilities (acquired)			56,000
Total liabilities			438,345,000
Bank of America | Initial Fair Value Adjustments
Business Combination Recognized Identifiable Assets Acquired [Abstract]
Loans, net of allowance and mark			(295,000)
Premises and equipment			(2,138,000)
Intangible assets			6,800,000
Total assets			4,367,000
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Deposit Liabilities [Abstract]
Net identifiable assets acquired over (under) liabilities assumed			4,367,000
Goodwill			20,652,000
Net assets acquired over liabilities assumed			25,019,000
Additional information
Core deposit intangible			$ 6,800,000
Southeastern Bank Financial
Business Combination Recognized Identifiable Assets Acquired [Abstract]
Cash and cash equivalents		$ 72,043,000
Investment securities		590,054,000
Loans held for sale		13,652,000
Loans, net of allowance and mark		1,049,950,000
Premises and equipment		24,077,000
Intangible assets		18,120,000
OREO acquired in acquisition		450,000		385,000	385,000	$ 385,000
Bank owned life insurance		44,513,000
Deferred tax asset.		16,075,000
Other assets		7,063,000
Total assets		1,835,997,000
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Deposit Liabilities [Abstract]
Noninterest-bearing		262,967,000
Interest-bearing		1,257,953,000
Total deposits		1,520,920,000
Federal funds purchased and securities sold under agreements to repurchase		1,014,000
Other borrowings		109,500,000
Other liabilities (acquired)		27,743,000
Total liabilities		1,659,177,000
Net identifiable assets acquired over (under) liabilities assumed		176,820,000
Goodwill		258,295,000
Net assets acquired over liabilities assumed		$ 435,115,000
Consideration:
Common stock shares issued | shares		4,978,338
Purchase price per share of the Company's common stock (in dollars per share) | $ / shares		$ 87.30
Company common stock issued ($688,566) and cash exchanged for fractional shares ($88)		$ 434,625,000
Cash paid for stock options outstanding		490,000
Fair value of total consideration transferred		435,115,000
Additional information
Adjustment to acquired loans portfolio		30,700,000
Allowance for loan losses		20,100,000
Core deposit intangible		18,120,000
Discount on trust preferred securities		2,100,000
Federal Home Loan Bank, Advances, Premium		1,000,000
Fair value adjustments to employee benefit plans		8,300,000
Adjustment of other miscellaneous liabilities		496,000
Proforma amounts
Total revenues (net interest income plus noninterest income), Pro Forma					67,823,000
Net operating income available to the common shareholder, Pro Forma					$ 25,790,000
Southeastern Bank Financial | As previously recorded by acquiree
Business Combination Recognized Identifiable Assets Acquired [Abstract]
Cash and cash equivalents		72,043,000
Investment securities		591,824,000
Loans held for sale		13,652,000
Loans, net of allowance and mark		1,060,618,000
Premises and equipment		25,419,000
Intangible assets		140,000
OREO acquired in acquisition		580,000
Bank owned life insurance		44,513,000
Deferred tax asset.		16,247,000
Other assets		7,545,000
Total assets		1,832,581,000
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Deposit Liabilities [Abstract]
Noninterest-bearing		262,967,000
Interest-bearing		1,257,953,000
Total deposits		1,520,920,000
Federal funds purchased and securities sold under agreements to repurchase		1,014,000
Other borrowings		110,620,000
Other liabilities (acquired)		19,980,000
Total liabilities		1,652,534,000
Net identifiable assets acquired over (under) liabilities assumed		180,047,000
Net assets acquired over liabilities assumed		180,047,000
Additional information
Core deposit intangible		140,000
Southeastern Bank Financial | Initial Fair Value Adjustments
Business Combination Recognized Identifiable Assets Acquired [Abstract]
Investment securities		(1,770,000)
Loans, net of allowance and mark		(10,668,000)
Premises and equipment		(2,212,000)
Intangible assets		17,980,000
OREO acquired in acquisition		(30,000)
Deferred tax asset.		(687,000)
Other assets		(482,000)
Total assets		2,131,000
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Deposit Liabilities [Abstract]
Other borrowings		(1,120,000)
Other liabilities (acquired)		5,553,000
Total liabilities		4,433,000
Net identifiable assets acquired over (under) liabilities assumed		(2,302,000)
Goodwill		257,370,000
Net assets acquired over liabilities assumed		255,068,000
Additional information
Core deposit intangible		17,980,000
Southeastern Bank Financial | Subsequent Fair Value Adjustments
Business Combination Recognized Identifiable Assets Acquired [Abstract]
Premises and equipment		870,000
OREO acquired in acquisition		(100,000)
Deferred tax asset.		515,000
Total assets		1,285,000
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Deposit Liabilities [Abstract]
Other liabilities (acquired)		2,210,000
Total liabilities		2,210,000
Net identifiable assets acquired over (under) liabilities assumed		(925,000)
Goodwill		$ 925,000
Park Sterling Corporation
Business Combination Recognized Identifiable Assets Acquired [Abstract]
Cash and cash equivalents	$ 116,454,000
Investment securities	462,705,000
Loans held for sale	70,886,000
Loans, net of allowance and mark	2,250,734,000
Premises and equipment	56,177,000
Intangible assets	26,175,000
OREO acquired in acquisition	2,120,000
Bank owned life insurance	72,703,000
Deferred tax asset.	29,559,000
Other assets	21,119,000
Total assets	3,108,632,000
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Deposit Liabilities [Abstract]
Noninterest-bearing	561,874,000
Interest-bearing	1,889,502,000
Total deposits	2,451,376,000
Other borrowings	340,938,000
Other liabilities (acquired)	26,310,000
Total liabilities	2,818,624,000
Net identifiable assets acquired over (under) liabilities assumed	290,008,000
Goodwill	402,951,000
Net assets acquired over liabilities assumed	$ 692,959,000
Consideration:
Common stock shares issued | shares	7,480,343
Purchase price per share of the Company's common stock (in dollars per share) | $ / shares	$ 92.05
Company common stock issued ($688,566) and cash exchanged for fractional shares ($88)	$ 688,654,000
Common stock issued	688,566,000
Price per fractional share	88
Cash paid for stock options outstanding	4,305,000
Fair value of total consideration transferred	692,959,000
Additional information
Allowance for loan losses	12,500,000
Fair value mark on loans	$ 21,300,000
Interest rate on core deposit intangibles (in %)	1.66%
Core deposit intangible	$ 26,175,000
Goodwill write-off	73,100,000
Premium for fixed maturity time deposits	2,950,000
Fair value mark on fixed maturity time deposits	253,000
Fair value adjustment on Trust Preferred Securities	2,400,000
Discount on trust preferred securities	14,000,000
Fair value adjustments to employee benefit plans	1,500,000
Proforma amounts
Total revenues (net interest income plus noninterest income), Pro Forma				14,052,000
Net operating income available to the common shareholder, Pro Forma				$ 4,829,000
Park Sterling Corporation | As previously recorded by acquiree
Business Combination Recognized Identifiable Assets Acquired [Abstract]
Cash and cash equivalents	116,454,000
Investment securities	461,261,000
Loans held for sale	2,200,000
Loans, net of allowance and mark	2,346,612,000
Premises and equipment	61,059,000
Intangible assets	73,090,000
OREO acquired in acquisition	2,549,000
Bank owned life insurance	72,703,000
Deferred tax asset.	17,963,000
Other assets	21,595,000
Total assets	3,175,486,000
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Deposit Liabilities [Abstract]
Noninterest-bearing	561,874,000
Interest-bearing	1,886,810,000
Total deposits	2,448,684,000
Other borrowings	329,249,000
Other liabilities (acquired)	24,179,000
Total liabilities	2,802,112,000
Net identifiable assets acquired over (under) liabilities assumed	373,374,000
Net assets acquired over liabilities assumed	373,374,000
Additional information
Core deposit intangible	73,090,000
Park Sterling Corporation | Initial Fair Value Adjustments
Business Combination Recognized Identifiable Assets Acquired [Abstract]
Investment securities	1,444,000
Loans held for sale	68,686,000
Loans, net of allowance and mark	(95,878,000)
Premises and equipment	(4,882,000)
Intangible assets	(46,915,000)
OREO acquired in acquisition	(429,000)
Deferred tax asset.	11,596,000
Other assets	(476,000)
Total assets	(66,854,000)
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Deposit Liabilities [Abstract]
Interest-bearing	2,692,000
Total deposits	2,692,000
Other borrowings	11,689,000
Other liabilities (acquired)	2,131,000
Total liabilities	16,512,000
Net identifiable assets acquired over (under) liabilities assumed	(83,366,000)
Goodwill	402,951,000
Net assets acquired over liabilities assumed	319,585,000
Additional information
Adjustment to acquired loans portfolio	60,900,000
Core deposit intangible	$ (46,915,000)

Investment Securities - Amortiz

Investment Securities - Amortized cost and fair value for held to maturity securities - (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Investment securities held to maturity
Amortized Cost	$ 2,529	$ 6,094
Fair Value	2,556	6,250
State and municipal obligations
Investment securities held to maturity
Amortized Cost	2,529	6,094
Gross Unrealized Gains	27	156
Fair Value	$ 2,556	$ 6,250

Investment Securities - Amort71

Investment Securities - Amortized cost and fair value for available for sale securities - (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Investment securities available for sale
Amortized Cost	$ 1,657,624	$ 1,002,166
Gross Unrealized Gains	5,903	5,847
Gross Unrealized Losses	(12,817)	(8,608)
Fair Value	1,650,710	999,405
Government-sponsored entities debt
Investment securities available for sale
Amortized Cost	86,535	85,488
Gross Unrealized Gains	51
Gross Unrealized Losses	(1,077)	(846)
Fair Value	85,509	84,642
State and municipal obligations
Investment securities available for sale
Amortized Cost	216,812	105,303
Gross Unrealized Gains	3,749	2,289
Gross Unrealized Losses	(124)	(190)
Fair Value	220,437	107,402
Mortgage-backed securities. issued by Government sponsored entities
Investment securities available for sale
Amortized Cost	1,350,200	807,717
Gross Unrealized Gains	2,103	3,085
Gross Unrealized Losses	(11,616)	(7,225)
Fair Value	1,340,687	803,577
Common Stock
Investment securities available for sale
Amortized Cost	4,077	3,658
Gross Unrealized Gains		473
Gross Unrealized Losses		(347)
Fair Value	$ 4,077	$ 3,784

Investment Securities - Amort72

Investment Securities - Amortized cost and fair value of other investment securities - (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Information with respect to sales of available-for-sale securities
Proceeds from Sale of Available-for-sale Securities	$ 374,938	$ 137
Gross realized gains	1,832	122
Gross realized losses	(411)
Net realized gain	1,421	122
Amortized Cost
Due in one year or less	3,143
Due after one year through five years	101,866
Due after five years through ten years	369,235
Due after ten years	1,183,380
Total	1,657,624	1,002,166
Fair Value
Due in one year or less	3,143
Due after one year through five years	101,509
Due after five years through ten years	369,038
Due after ten years	1,177,020
Fair Value	1,650,710	999,405
Amortized Cost
Due after one year through five years	655
Due after five years through ten years	1,874
Total	2,529	6,094
Fair Value
Due after one year through five years	661
Due after five years through ten years	1,895
Fair Value	2,556	6,250
Amortized Cost	20,530	9,482
Fair Value	20,530	9,482
Federal Home Loan Bank stock
Fair Value
Amortized Cost	16,967	7,840
Fair Value	16,967	7,840
Unconsolidated subsidiaries
Fair Value
Amortized Cost	3,563	1,642
Fair Value	$ 3,563	$ 1,642

Investment Securities - Securit

Investment Securities - Securities with gross unrealized losses - (Details) $ in Thousands	Dec. 31, 2017USD ($)item	Dec. 31, 2016USD ($)
Investment Securities
Number of securities with gross unrealized loss | item	223
Securities Available for Sale, Gross Unrealized Losses
Less Than Twelve Months	$ 5,020	$ 8,184
Twelve Months or More	7,797	424
Securities Available for Sale, Fair Value
Less Than Twelve Months	654,893	688,376
Twelve Months or More	374,582	3,453
Government-sponsored entities debt
Securities Available for Sale, Gross Unrealized Losses
Less Than Twelve Months	403	846
Twelve Months or More	674
Securities Available for Sale, Fair Value
Less Than Twelve Months	27,442	84,642
Twelve Months or More	52,324
State and municipal obligations
Securities Available for Sale, Gross Unrealized Losses
Less Than Twelve Months	124	190
Securities Available for Sale, Fair Value
Less Than Twelve Months	17,400	11,506
Mortgage-backed securities. issued by Government sponsored entities
Securities Available for Sale, Gross Unrealized Losses
Less Than Twelve Months	4,493	7,148
Twelve Months or More	7,123	77
Securities Available for Sale, Fair Value
Less Than Twelve Months	610,051	592,228
Twelve Months or More	$ 322,258	2,058
Common Stock
Securities Available for Sale, Gross Unrealized Losses
Twelve Months or More		347
Securities Available for Sale, Fair Value
Twelve Months or More		$ 1,395

Investment Securities - Additon

Investment Securities - Additonal disclosures - (Details)	3 Months Ended	12 Months Ended
	Sep. 30, 2017USD ($)security	Dec. 31, 2017USD ($)	Dec. 31, 2015USD ($)	Dec. 31, 2016USD ($)
Additional disclosures
Other-than-temporary impairment on securities	$ 753,000	$ 753,000	$ 489,000
Number of equity securities sold | security	2
Carrying value of investment securities pledged to secure public funds deposits and for other purposes required and permitted by law		766,000,000		$ 295,200,000
Carrying amount of the securities pledged to collateralize repurchase agreements		$ 211,100,000		$ 238,300,000

Loans and Allowance for Loan 75

Loans and Allowance for Loan Losses - Summary of non acquired loans - (Details) - USD ($)	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Loans and Allowance for Loan Losses
Total loans	$ 1,289,000
Loans, net	10,575,417,000	$ 6,643,326,000
Deferred fees	466,000	341,000,000,000
Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	6,492,155,000	5,241,041,000	$ 4,220,726,000
Less allowance for non-acquired loan losses	(43,448,000)	(36,960,000)	(34,090,000)	$ (34,539,000)
Loans, net	6,448,707,000	5,204,081,000
Commercial non-owner occupied real estate | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	1,839,768,000	1,295,179,000
Commercial non-owner occupied real estate | Construction and land development | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	830,875,000	580,464,000	401,979,000
Less allowance for non-acquired loan losses	(5,921,000)	(4,091,000)	(4,116,000)	(5,666,000)
Commercial non-owner occupied real estate | Other commercial non-owner occupied real estate | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	1,008,893,000	714,715,000	487,777,000
Less allowance for non-acquired loan losses	(6,525,000)	(4,980,000)	(3,568,000)	(3,154,000)
Consumer real estate | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	1,967,902,000	1,580,839,000
Consumer real estate | Home equity loans | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	437,642,000	383,218,000	319,255,000
Less allowance for non-acquired loan losses	(3,250,000)	(3,211,000)	(2,929,000)	(2,829,000)
Commercial and industrial | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	815,187,000	671,398,000	503,808,000
Less allowance for non-acquired loan losses	(5,488,000)	(4,842,000)	(3,974,000)	(3,561,000)
Other income producing property | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	193,847,000	178,238,000	175,848,000
Less allowance for non-acquired loan losses	(1,375,000)	(1,542,000)	(1,963,000)	(2,232,000)
Consumer | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	378,985,000	324,238,000	233,104,000
Less allowance for non-acquired loan losses	$ (2,788,000)	$ (2,350,000)	$ (1,694,000)	$ (1,367,000)

Loans and Allowance for Loan 76

Loans and Allowance for Loan Losses - Summary of acquired non credit impaired loans - (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Acquired credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	$ 623,430	$ 605,941	$ 737,576
Less allowance for loan losses	(4,627)	(3,395)	(3,706)	$ (7,365)
Acquired loans, net	618,803	602,546	733,870	919,402
Acquired non-credit impaired loans accounted under FASB 310 20
Loans and Allowance for Loan Losses
Carrying value	3,507,907	836,699
Acquired credit impaired loans accounted under FASB 310 30
Loans and Allowance for Loan Losses
Carrying value	623,430	605,941
Less allowance for loan losses	(4,627)	(3,395)
Acquired loans, net	618,803	602,546
Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	3,507,907	836,699
Residential real estate
Loans and Allowance for Loan Losses
Carrying value	260,787	258,100
Residential real estate | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	260,787	258,100	313,319
Less allowance for loan losses	(3,553)	(2,419)	(2,986)	(4,387)
Residential real estate | Acquired credit impaired loans accounted under FASB 310 30
Loans and Allowance for Loan Losses
Carrying value	260,787	258,100
Commercial non-owner occupied real estate | Acquired non-credit impaired loans accounted under FASB 310 20
Loans and Allowance for Loan Losses
Carrying value	1,220,523	44,718
Commercial owner occupied real estate loan | Acquired non-credit impaired loans accounted under FASB 310 20
Loans and Allowance for Loan Losses
Carrying value	521,818	27,195
Commercial owner occupied real estate loan | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	521,818	27,195
Consumer real estate | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	51,453	59,300	70,734
Less allowance for loan losses	(461)	(558)	(313)	(275)
Consumer real estate | Acquired non-credit impaired loans accounted under FASB 310 20
Loans and Allowance for Loan Losses
Carrying value	1,031,202	569,149
Consumer real estate | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	1,170,201	711,803
Commercial and industrial
Loans and Allowance for Loan Losses
Carrying value	26,946	25,347
Commercial and industrial | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	26,946	25,347	31,193
Less allowance for loan losses	(145)	(238)	(174)	(718)
Commercial and industrial | Acquired non-credit impaired loans accounted under FASB 310 20
Loans and Allowance for Loan Losses
Carrying value	398,696	13,641
Commercial and industrial | Acquired credit impaired loans accounted under FASB 310 30
Loans and Allowance for Loan Losses
Carrying value	26,946	25,347
Commercial and industrial | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	398,696	13,641
Other income producing property | Acquired non-credit impaired loans accounted under FASB 310 20
Loans and Allowance for Loan Losses
Carrying value	196,669	39,342
Other income producing property | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	196,669	39,342
Consumer
Loans and Allowance for Loan Losses
Carrying value	51,453	59,300
Consumer | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	51,453	59,300
Consumer | Acquired non-credit impaired loans accounted under FASB 310 20
Loans and Allowance for Loan Losses
Carrying value	137,710	142,654
Consumer | Acquired credit impaired loans accounted under FASB 310 30
Loans and Allowance for Loan Losses
Carrying value	51,453	59,300
Consumer | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	137,710	142,654
Commercial | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	2,337,706	124,896
Single pay loans | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Less allowance for loan losses				(70)
Other loans
Loans and Allowance for Loan Losses
Carrying value	1,289
Other loans | Acquired non-credit impaired loans accounted under FASB 310 20
Loans and Allowance for Loan Losses
Carrying value	1,289
Other loans | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	1,289
Construction and land development | Commercial non-owner occupied real estate | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	49,649	44,373	54,272
Less allowance for loan losses	(180)	(139)	(177)	(336)
Construction and land development | Commercial non-owner occupied real estate | Acquired non-credit impaired loans accounted under FASB 310 20
Loans and Allowance for Loan Losses
Carrying value	403,357	10,090
Construction and land development | Commercial non-owner occupied real estate | Acquired credit impaired loans accounted under FASB 310 30
Loans and Allowance for Loan Losses
Carrying value	49,649	44,373
Construction and land development | Commercial non-owner occupied real estate | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	403,357	10,090
Other commercial non-owner occupied real estate | Commercial non-owner occupied real estate | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	234,595	218,821	268,058
Less allowance for loan losses	(288)	(41)	$ (56)	$ (1,579)
Other commercial non-owner occupied real estate | Commercial non-owner occupied real estate | Acquired non-credit impaired loans accounted under FASB 310 20
Loans and Allowance for Loan Losses
Carrying value	817,166	34,628
Other commercial non-owner occupied real estate | Commercial non-owner occupied real estate | Acquired credit impaired loans accounted under FASB 310 30
Loans and Allowance for Loan Losses
Carrying value	234,595	218,821
Other commercial non-owner occupied real estate | Commercial non-owner occupied real estate | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	817,166	34,628
Home equity loans | Consumer real estate | Acquired non-credit impaired loans accounted under FASB 310 20
Loans and Allowance for Loan Losses
Carrying value	320,591	160,879
Home equity loans | Consumer real estate | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	320,591	160,879
Other Consumer | Consumer real estate | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	137,710	142,654
Consumer Owner Occupied Loans | Consumer real estate | Acquired non-credit impaired loans accounted under FASB 310 20
Loans and Allowance for Loan Losses
Carrying value	710,611	408,270
Consumer Owner Occupied Loans | Consumer real estate | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	$ 710,611	$ 408,270

Loans and Allowance for Loan 77

Loans and Allowance for Loan Losses - Table of loan payment estimates - (Details) - USD ($) $ in Thousands	Nov. 30, 2017	Jan. 03, 2017	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Park Sterling Corporation
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Contractual principal and interest	$ 92,600
Non-accretable difference	(12,840)
Cash flows expected to be collected	79,760
Accretable difference	(8,829)
Carrying value	70,931
Acquired credit impaired loans
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Contractual principal and interest			$ 795,850	$ 778,822
Non-accretable difference			(39,324)	(17,502)
Cash flows expected to be collected			756,526	761,320
Accretable difference			(133,096)	(155,379)
Carrying value			623,430	605,941	$ 737,576
Allowance for loan losses on acquired loans			(4,627)	(3,395)	(3,706)	$ (7,365)
Acquired non-credit impaired loans accounted under FASB 310 20
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Carrying value			3,507,907	836,699
Acquired non-credit impaired loans accounted under FASB 310 20 | Park Sterling Corporation
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Contractual principal and interest	2,300,000
After fair value adjustment	2,200,000
Fair value adjustment	$ 50,100
Acquired credit impaired loans accounted under FASB 310 30
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Carrying value			623,430	605,941
Allowance for loan losses on acquired loans			(4,627)	(3,395)
Acquired loans accounted under FASB ASC 310 20
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Contractual principal and interest			3,600,000	848,300
After fair value adjustment			3,500,000	836,700
Fair value adjustment			65,400	11,600
Acquired credit impaired and non-impaired loans accounted Under FASB ASC Topic 310-30 | Southeastern Bank Financial
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Contractual principal and interest		$ 73,365
Non-accretable difference		(12,912)
Cash flows expected to be collected		60,453
Accretable difference		(4,603)
Carrying value		55,850
Acquired credit impaired and non-impaired loans accounted under FASB ASC Topic 310-20 | Southeastern Bank Financial
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Contractual principal and interest		1,010,000
After fair value adjustment		991,500
Fair value adjustment		$ 18,800
Acquired non-credit impaired loans
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Carrying value			3,507,907	836,699
Residential real estate
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Carrying value			260,787	258,100
Residential real estate | Acquired credit impaired loans
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Carrying value			260,787	258,100	313,319
Allowance for loan losses on acquired loans			(3,553)	(2,419)	(2,986)	(4,387)
Residential real estate | Acquired credit impaired loans accounted under FASB 310 30
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Carrying value			260,787	258,100
Commercial non-owner occupied real estate | Acquired non-credit impaired loans accounted under FASB 310 20
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Carrying value			1,220,523	44,718
Commercial owner occupied real estate loan | Acquired non-credit impaired loans accounted under FASB 310 20
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Carrying value			521,818	27,195
Commercial owner occupied real estate loan | Acquired non-credit impaired loans
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Carrying value			521,818	27,195
Consumer real estate | Acquired credit impaired loans
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Carrying value			51,453	59,300	70,734
Allowance for loan losses on acquired loans			(461)	(558)	(313)	(275)
Consumer real estate | Acquired non-credit impaired loans accounted under FASB 310 20
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Carrying value			1,031,202	569,149
Consumer real estate | Acquired non-credit impaired loans
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Carrying value			1,170,201	711,803
Commercial and industrial
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Carrying value			26,946	25,347
Commercial and industrial | Acquired credit impaired loans
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Carrying value			26,946	25,347	31,193
Allowance for loan losses on acquired loans			(145)	(238)	(174)	(718)
Commercial and industrial | Acquired non-credit impaired loans accounted under FASB 310 20
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Carrying value			398,696	13,641
Commercial and industrial | Acquired credit impaired loans accounted under FASB 310 30
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Carrying value			26,946	25,347
Commercial and industrial | Acquired non-credit impaired loans
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Carrying value			398,696	13,641
Other income producing property | Acquired non-credit impaired loans accounted under FASB 310 20
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Carrying value			196,669	39,342
Other income producing property | Acquired non-credit impaired loans
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Carrying value			196,669	39,342
Consumer
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Carrying value			51,453	59,300
Consumer | Acquired credit impaired loans
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Carrying value			51,453	59,300
Consumer | Acquired non-credit impaired loans accounted under FASB 310 20
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Carrying value			137,710	142,654
Consumer | Acquired credit impaired loans accounted under FASB 310 30
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Carrying value			51,453	59,300
Consumer | Acquired non-credit impaired loans
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Carrying value			137,710	142,654
Commercial | Acquired non-credit impaired loans
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Carrying value			2,337,706	124,896
Single pay loans | Acquired credit impaired loans
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Allowance for loan losses on acquired loans						(70)
Other loans
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Carrying value			1,289
Other loans | Acquired non-credit impaired loans accounted under FASB 310 20
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Carrying value			1,289
Other loans | Acquired non-credit impaired loans
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Carrying value			1,289
Construction and land development | Commercial non-owner occupied real estate | Acquired credit impaired loans
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Carrying value			49,649	44,373	54,272
Allowance for loan losses on acquired loans			(180)	(139)	(177)	(336)
Construction and land development | Commercial non-owner occupied real estate | Acquired non-credit impaired loans accounted under FASB 310 20
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Carrying value			403,357	10,090
Construction and land development | Commercial non-owner occupied real estate | Acquired credit impaired loans accounted under FASB 310 30
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Carrying value			49,649	44,373
Construction and land development | Commercial non-owner occupied real estate | Acquired non-credit impaired loans
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Carrying value			403,357	10,090
Other commercial non-owner occupied real estate | Commercial non-owner occupied real estate | Acquired credit impaired loans
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Carrying value			234,595	218,821	268,058
Allowance for loan losses on acquired loans			(288)	(41)	$ (56)	$ (1,579)
Other commercial non-owner occupied real estate | Commercial non-owner occupied real estate | Acquired non-credit impaired loans accounted under FASB 310 20
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Carrying value			817,166	34,628
Other commercial non-owner occupied real estate | Commercial non-owner occupied real estate | Acquired credit impaired loans accounted under FASB 310 30
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Carrying value			234,595	218,821
Other commercial non-owner occupied real estate | Commercial non-owner occupied real estate | Acquired non-credit impaired loans
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Carrying value			817,166	34,628
Home equity loans | Consumer real estate | Acquired non-credit impaired loans accounted under FASB 310 20
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Carrying value			320,591	160,879
Home equity loans | Consumer real estate | Acquired non-credit impaired loans
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Carrying value			320,591	160,879
Other Consumer | Consumer real estate | Acquired non-credit impaired loans
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Carrying value			137,710	142,654
Consumer Owner Occupied Loans | Consumer real estate | Acquired non-credit impaired loans accounted under FASB 310 20
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Carrying value			710,611	408,270
Consumer Owner Occupied Loans | Consumer real estate | Acquired non-credit impaired loans
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Carrying value			$ 710,611	$ 408,270

Loans and Allowance for Loan 78

Loans and Allowance for Loan Losses - Changes in the carrying value of acquired credit impaired loans - (Details)	3 Months Ended	12 Months Ended
	Dec. 31, 2015USD ($)	Dec. 31, 2017USD ($)	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)
Changes in the carrying amount of accretable difference for acquired impaired and non-impaired loans
Decline in accretable yield balance		$ 22,000,000
Percentage of loss adjustment based on most current collateral value	90
Maximum
Changes in the carrying amount of accretable difference for acquired impaired and non-impaired loans
Threshold limit of loans for risk assessment by loan officers	$ 500,000			$ 500,000
Minimum
Changes in the carrying amount of accretable difference for acquired impaired and non-impaired loans
Threshold limit of loans for risk assessment by loan officers	100,000			100,000
Acquired credit impaired loans
Changes in the carrying value of acquired loans at the acquisition date
Balance at the beginning of the period		602,546,000	$ 733,870,000	919,402,000
Fair value of acquired loans		126,781,000
Net reductions for payments, foreclosures, and accretion		(109,292,000)	(131,635,000)	(189,191,000)
Change in the allowance for loan losses on acquired loans		1,232,000	(311,000)	(3,659,000)
Balance at the end of the period	733,870,000	618,803,000	602,546,000	733,870,000
Changes in the carrying amount of accretable difference for acquired impaired and non-impaired loans
Balance at beginning of period		155,379,000	201,538,000	306,826,000
Accretion		(57,434,000)	(72,757,000)	(97,847,000)
Reclass of nonaccretable difference due to improvement in expected cash flows		21,890,000	25,808,000	61,985,000
Other changes, net		(478,000)	790,000	(69,426,000)
Balance at end of period	$ 201,538,000	133,096,000	$ 155,379,000	$ 201,538,000
Acquired credit impaired loans | Southeastern Bank Financial
Changes in the carrying amount of accretable difference for acquired impaired and non-impaired loans
Addition from acquisition		4,910,000
Acquired credit impaired loans | Park Sterling Corporation
Changes in the carrying amount of accretable difference for acquired impaired and non-impaired loans
Addition from acquisition		$ 8,829,000

Loans and Allowance for Loan 79

Loans and Allowance for Loan Losses - Aggregated analysis of the changes in allowance for loan losses - (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Changes in allowance for loan losses
Balance at beginning of period	$ 40,355	$ 37,796	$ 41,904
Loans charged-off	(6,779)	(6,889)	(8,967)
Recoveries of loans previously charged off	3,430	3,551	3,188
Net charge-offs	(3,349)	(3,338)	(5,779)
Provision (benefit)	11,890	6,796	5,078
Benefits attributable to FDIC loss share agreements		23	786
Total provision for loan losses charged to operations	11,890	6,819	5,864
Provision for loan losses recorded through the FDIC loss share receivable		(23)	(786)
Reduction due to loan removals	(821)	(899)	(3,407)
Balance at end of period	48,075	40,355	37,796
Non-acquired loans
Changes in allowance for loan losses
Balance at beginning of period	36,960	34,090	34,539
Loans charged-off	(5,149)	(5,902)	(6,180)
Recoveries of loans previously charged off	2,953	3,233	2,801
Net charge-offs	(2,196)	(2,669)	(3,379)
Provision (benefit)	8,684	5,539	2,930
Total provision for loan losses charged to operations	8,684	5,539	2,930
Balance at end of period	43,448	36,960	34,090
Acquired non-credit impaired loans
Changes in allowance for loan losses
Loans charged-off	(1,630)	(987)	(2,787)
Recoveries of loans previously charged off	477	318	387
Net charge-offs	(1,153)	(669)	(2,400)
Provision (benefit)	1,153	669	2,400
Total provision for loan losses charged to operations	1,153	669	2,400
Acquired credit impaired loans
Changes in allowance for loan losses
Balance at beginning of period	3,395	3,706	7,365
Provision (benefit)	2,053	588	(252)
Benefits attributable to FDIC loss share agreements		23	786
Total provision for loan losses charged to operations	2,053	611	534
Provision for loan losses recorded through the FDIC loss share receivable		(23)	(786)
Reduction due to loan removals	(821)	(899)	(3,407)
Balance at end of period	4,627	3,395	3,706
Residential real estate | Acquired credit impaired loans
Changes in allowance for loan losses
Provision (benefit)	1,662	(129)	99
Benefits attributable to FDIC loss share agreements		23	228
Total provision for loan losses charged to operations	1,662	(106)	327
Provision for loan losses recorded through the FDIC loss share receivable		(23)	(228)
Reduction due to loan removals	(528)	(438)	(1,500)
Commercial owner occupied real estate loan | Non-acquired loans
Changes in allowance for loan losses
Loans charged-off		(118)	(851)
Recoveries of loans previously charged off	220	54	31
Total provision for loan losses charged to operations	(114)	(255)	746
Consumer real estate | Acquired credit impaired loans
Changes in allowance for loan losses
Provision (benefit)	(83)	533	336
Benefits attributable to FDIC loss share agreements			(107)
Total provision for loan losses charged to operations	(83)	533	229
Provision for loan losses recorded through the FDIC loss share receivable			107
Reduction due to loan removals	(14)	(288)	(298)
Commercial and industrial | Non-acquired loans
Changes in allowance for loan losses
Loans charged-off	(776)	(876)	(357)
Recoveries of loans previously charged off	343	292	844
Total provision for loan losses charged to operations	1,079	1,452	(74)
Commercial and industrial | Acquired non-credit impaired loans
Changes in allowance for loan losses
Loans charged-off	(71)	(66)	(118)
Recoveries of loans previously charged off	6	9	19
Total provision for loan losses charged to operations	65	57	99
Commercial and industrial | Acquired credit impaired loans
Changes in allowance for loan losses
Provision (benefit)	64	183	(118)
Benefits attributable to FDIC loss share agreements			131
Total provision for loan losses charged to operations	64	183	13
Provision for loan losses recorded through the FDIC loss share receivable			(131)
Reduction due to loan removals	(157)	(119)	(426)
Other income producing property | Non-acquired loans
Changes in allowance for loan losses
Loans charged-off	(51)	(7)	(102)
Recoveries of loans previously charged off	85	87	85
Total provision for loan losses charged to operations	(201)	(501)	(252)
Other income producing property | Acquired non-credit impaired loans
Changes in allowance for loan losses
Loans charged-off			(4)
Recoveries of loans previously charged off	8	43	4
Total provision for loan losses charged to operations	(8)	(43)
Consumer | Non-acquired loans
Changes in allowance for loan losses
Loans charged-off	(3,261)	(3,597)	(3,574)
Recoveries of loans previously charged off	689	943	1,011
Total provision for loan losses charged to operations	3,010	3,310	2,890
Consumer | Acquired non-credit impaired loans
Changes in allowance for loan losses
Loans charged-off	(468)	(532)	(643)
Recoveries of loans previously charged off	23	51	21
Total provision for loan losses charged to operations	445	481	622
Single pay loans | Acquired credit impaired loans
Changes in allowance for loan losses
Provision (benefit)			(2)
Benefits attributable to FDIC loss share agreements			1
Total provision for loan losses charged to operations			(1)
Provision for loan losses recorded through the FDIC loss share receivable			(1)
Reduction due to loan removals			(68)
Other loans | Non-acquired loans
Changes in allowance for loan losses
Total provision for loan losses charged to operations	203	(191)	(156)
Construction and land development | Commercial non-owner occupied real estate | Non-acquired loans
Changes in allowance for loan losses
Loans charged-off	(546)	(159)	(219)
Recoveries of loans previously charged off	968	912	376
Total provision for loan losses charged to operations	1,408	(778)	(1,707)
Construction and land development | Commercial non-owner occupied real estate | Acquired credit impaired loans
Changes in allowance for loan losses
Provision (benefit)	163		(68)
Benefits attributable to FDIC loss share agreements			74
Total provision for loan losses charged to operations	163		6
Provision for loan losses recorded through the FDIC loss share receivable			(74)
Reduction due to loan removals	(122)	(38)	(91)
Construction and land development | Commercial | Acquired non-credit impaired loans
Changes in allowance for loan losses
Loans charged-off	(82)
Recoveries of loans previously charged off	4	4	4
Total provision for loan losses charged to operations	78	(4)	(4)
Other commercial non-owner occupied real estate | Commercial non-owner occupied real estate | Non-acquired loans
Changes in allowance for loan losses
Loans charged-off		(111)	(156)
Recoveries of loans previously charged off	132	512	67
Total provision for loan losses charged to operations	1,413	1,011	503
Other commercial non-owner occupied real estate | Commercial non-owner occupied real estate | Acquired credit impaired loans
Changes in allowance for loan losses
Provision (benefit)	247	1	(499)
Benefits attributable to FDIC loss share agreements			459
Total provision for loan losses charged to operations	247	1	(40)
Provision for loan losses recorded through the FDIC loss share receivable			(459)
Reduction due to loan removals		(16)	(1,024)
Other commercial non-owner occupied real estate | Commercial | Acquired non-credit impaired loans
Changes in allowance for loan losses
Recoveries of loans previously charged off	2
Total provision for loan losses charged to operations	(2)	(39)
Home equity loans | Consumer real estate | Non-acquired loans
Changes in allowance for loan losses
Loans charged-off	(330)	(808)	(547)
Recoveries of loans previously charged off	210	299	244
Total provision for loan losses charged to operations	159	791	403
Home equity loans | Consumer real estate | Acquired non-credit impaired loans
Changes in allowance for loan losses
Loans charged-off	(859)	(428)	(1,662)
Recoveries of loans previously charged off	393	199	237
Total provision for loan losses charged to operations	466	229	1,425
Consumer Owner Occupied Loans | Consumer real estate | Non-acquired loans
Changes in allowance for loan losses
Loans charged-off	(185)	(226)	(374)
Recoveries of loans previously charged off	306	134	143
Total provision for loan losses charged to operations	1,727	700	577
Consumer Owner Occupied Loans | Consumer real estate | Acquired non-credit impaired loans
Changes in allowance for loan losses
Loans charged-off	(150)		(360)
Recoveries of loans previously charged off	41	12	102
Total provision for loan losses charged to operations	$ 109	$ (12)	$ 258

Loans and Allowance for Loan 80

Loans and Allowance for Loan Losses - Disaggregated analysis of activity in for allowances for non acquired loans - (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Allowance for loan losses:
Charge-offs	$ (6,779)	$ (6,889)	$ (8,967)
Recoveries	3,430	3,551	3,188
Provision (benefit)	11,890	6,819	5,864
Loans:
Loans collectively evaluated for impairment	1,289
Total loans	1,289
Non-acquired loans
Allowance for loan losses:
Balance at beginning of period	36,960	34,090	34,539
Charge-offs	(5,149)	(5,902)	(6,180)
Recoveries	2,953	3,233	2,801
Provision (benefit)	8,684	5,539	2,930
Balance at end of period	43,448	36,960	34,090
Loans individually evaluated for impairment	1,624	1,337	1,607
Loans collectively evaluated for impairment	41,824	35,623	32,483
Loans:
Loans individually evaluated for impairment	63,423	21,211	30,218
Loans collectively evaluated for impairment	6,428,732	5,219,830	4,190,508
Total loans	6,492,155	5,241,041	4,220,726
Acquired non-credit impaired loans
Allowance for loan losses:
Charge-offs	(1,630)	(987)	(2,787)
Recoveries	477	318	387
Provision (benefit)	1,153	669	2,400
Loans:
Loans collectively evaluated for impairment	3,507,907	836,699	1,049,538
Total loans	3,507,907	836,699	1,049,538
Commercial non-owner occupied real estate | Non-acquired loans
Loans:
Total loans	1,839,768	1,295,179
Commercial non-owner occupied real estate | Non-acquired loans | Construction and land development
Allowance for loan losses:
Balance at beginning of period	4,091	4,116	5,666
Charge-offs	(546)	(159)	(219)
Recoveries	968	912	376
Provision (benefit)	1,408	(778)	(1,707)
Balance at end of period	5,921	4,091	4,116
Loans individually evaluated for impairment	1,063	348	615
Loans collectively evaluated for impairment	4,858	3,743	3,501
Loans:
Loans individually evaluated for impairment	43,230	3,033	6,280
Loans collectively evaluated for impairment	787,645	577,431	395,699
Total loans	830,875	580,464	401,979
Commercial non-owner occupied real estate | Non-acquired loans | Other commercial non-owner occupied real estate
Allowance for loan losses:
Balance at beginning of period	4,980	3,568	3,154
Charge-offs		(111)	(156)
Recoveries	132	512	67
Provision (benefit)	1,413	1,011	503
Balance at end of period	6,525	4,980	3,568
Loans individually evaluated for impairment	125	170	34
Loans collectively evaluated for impairment	6,400	4,810	3,534
Loans:
Loans individually evaluated for impairment	1,375	806	1,452
Loans collectively evaluated for impairment	1,007,518	713,909	486,325
Total loans	1,008,893	714,715	487,777
Commercial non-owner occupied real estate | Acquired non-credit impaired loans | Other commercial non-owner occupied real estate
Loans:
Loans collectively evaluated for impairment	817,166	34,628	40,103
Total loans	817,166	34,628	40,103
Commercial owner occupied real estate loan | Non-acquired loans
Allowance for loan losses:
Balance at beginning of period	8,022	8,341	8,415
Charge-offs		(118)	(851)
Recoveries	220	54	31
Provision (benefit)	(114)	(255)	746
Balance at end of period	8,128	8,022	8,341
Loans individually evaluated for impairment	64	67	101
Loans collectively evaluated for impairment	8,064	7,955	8,240
Loans:
Loans individually evaluated for impairment	5,642	6,245	7,725
Loans collectively evaluated for impairment	1,257,134	1,171,500	1,025,673
Total loans	1,262,776	1,177,745	1,033,398
Consumer real estate | Non-acquired loans
Loans:
Total loans	1,967,902	1,580,839
Consumer real estate | Non-acquired loans | Home equity loans
Allowance for loan losses:
Balance at beginning of period	3,211	2,929	2,829
Charge-offs	(330)	(808)	(547)
Recoveries	210	299	244
Provision (benefit)	159	791	403
Balance at end of period	3,250	3,211	2,929
Loans individually evaluated for impairment	135	40	3
Loans collectively evaluated for impairment	3,115	3,171	2,926
Loans:
Loans individually evaluated for impairment	3,011	1,674	309
Loans collectively evaluated for impairment	434,631	381,544	318,946
Total loans	437,642	383,218	319,255
Consumer real estate | Non-acquired loans | Other Consumer
Loans:
Total loans	33,690	13,404
Consumer real estate | Non-acquired loans | Consumer Owner Occupied Loans
Allowance for loan losses:
Balance at beginning of period	7,820	7,212	6,866
Charge-offs	(185)	(226)	(374)
Recoveries	306	134	143
Provision (benefit)	1,727	700	577
Balance at end of period	9,668	7,820	7,212
Loans individually evaluated for impairment	37	80	138
Loans collectively evaluated for impairment	9,631	7,740	7,074
Loans:
Loans individually evaluated for impairment	5,632	5,673	7,549
Loans collectively evaluated for impairment	1,524,628	1,191,948	1,011,435
Total loans	1,530,260	1,197,621	1,018,984
Consumer real estate | Acquired non-credit impaired loans | Home equity loans
Allowance for loan losses:
Charge-offs	(859)	(428)	(1,662)
Recoveries	393	199	237
Provision (benefit)	466	229	1,425
Loans:
Loans collectively evaluated for impairment	320,591	160,879	190,968
Total loans	320,591	160,879	190,968
Consumer real estate | Acquired non-credit impaired loans | Consumer Owner Occupied Loans
Allowance for loan losses:
Charge-offs	(150)		(360)
Recoveries	41	12	102
Provision (benefit)	109	(12)	258
Loans:
Loans collectively evaluated for impairment	710,611	408,270	518,107
Total loans	710,611	408,270	518,107
Commercial and industrial | Non-acquired loans
Allowance for loan losses:
Balance at beginning of period	4,842	3,974	3,561
Charge-offs	(776)	(876)	(357)
Recoveries	343	292	844
Provision (benefit)	1,079	1,452	(74)
Balance at end of period	5,488	4,842	3,974
Loans individually evaluated for impairment	15	386	279
Loans collectively evaluated for impairment	5,473	4,456	3,695
Loans:
Loans individually evaluated for impairment	1,156	1,263	1,487
Loans collectively evaluated for impairment	814,031	670,135	502,321
Total loans	815,187	671,398	503,808
Commercial and industrial | Acquired non-credit impaired loans
Allowance for loan losses:
Charge-offs	(71)	(66)	(118)
Recoveries	6	9	19
Provision (benefit)	65	57	99
Loans:
Loans collectively evaluated for impairment	398,696	13,641	25,475
Total loans	398,696	13,641	25,475
Other income producing property | Non-acquired loans
Allowance for loan losses:
Balance at beginning of period	1,542	1,963	2,232
Charge-offs	(51)	(7)	(102)
Recoveries	85	87	85
Provision (benefit)	(201)	(501)	(252)
Balance at end of period	1,375	1,542	1,963
Loans individually evaluated for impairment	178	242	422
Loans collectively evaluated for impairment	1,197	1,300	1,541
Loans:
Loans individually evaluated for impairment	3,138	2,372	4,891
Loans collectively evaluated for impairment	190,709	175,866	170,957
Total loans	193,847	178,238	175,848
Other income producing property | Acquired non-credit impaired loans
Allowance for loan losses:
Charge-offs			(4)
Recoveries	8	43	4
Provision (benefit)	(8)	(43)
Loans:
Loans collectively evaluated for impairment	196,669	39,342	51,169
Total loans	196,669	39,342	51,169
Consumer | Non-acquired loans
Allowance for loan losses:
Balance at beginning of period	2,350	1,694	1,367
Charge-offs	(3,261)	(3,597)	(3,574)
Recoveries	689	943	1,011
Provision (benefit)	3,010	3,310	2,890
Balance at end of period	2,788	2,350	1,694
Loans individually evaluated for impairment	7	4	3
Loans collectively evaluated for impairment	2,781	2,346	1,691
Loans:
Loans individually evaluated for impairment	239	145	102
Loans collectively evaluated for impairment	378,746	324,093	233,002
Total loans	378,985	324,238	233,104
Consumer | Acquired non-credit impaired loans
Allowance for loan losses:
Charge-offs	(468)	(532)	(643)
Recoveries	23	51	21
Provision (benefit)	445	481	622
Loans:
Loans collectively evaluated for impairment	137,710	142,654	170,647
Total loans	137,710	142,654	170,647
Commercial | Non-acquired loans
Loans:
Total loans	4,111,578	3,322,560
Commercial | Acquired non-credit impaired loans | Construction and land development
Allowance for loan losses:
Charge-offs	(82)
Recoveries	4	4	4
Provision (benefit)	78	(4)	(4)
Loans:
Loans collectively evaluated for impairment	403,357	10,090	13,849
Total loans	403,357	10,090	13,849
Commercial | Acquired non-credit impaired loans | Other commercial non-owner occupied real estate
Allowance for loan losses:
Charge-offs (added back)		39
Recoveries	2
Provision (benefit)	(2)	(39)
Loans:
Loans collectively evaluated for impairment	521,818	27,195	39,220
Total loans	521,818	27,195	39,220
Other loans | Non-acquired loans
Allowance for loan losses:
Balance at beginning of period	102	293	449
Provision (benefit)	203	(191)	(156)
Balance at end of period	305	102	293
Loans individually evaluated for impairment			12
Loans collectively evaluated for impairment	305	102	281
Loans:
Loans individually evaluated for impairment			423
Loans collectively evaluated for impairment	33,690	13,404	46,150
Total loans	$ 33,690	$ 13,404	$ 46,573

Loans and Allowance for Loan 81

Loans and Allowance for Loan Losses - Disaggregated analysis of activity in the allowance for acquired credit impaired loans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Allowance for loan losses:
Provision for loan losses before benefit attributable to FDIC loss share agreements	$ 11,890	$ 6,796	$ 5,078
Benefits attributable to FDIC loss share agreements		23	786
Total provision for loan losses charged to operations	11,890	6,819	5,864
Provision for loan losses recorded through the FDIC loss share receivable		(23)	(786)
Reduction due to loan removals	(821)	(899)	(3,407)
Loans:
Loans collectively evaluated for impairment	1,289
Non-acquired loans
Allowance for loan losses:
Provision for loan losses before benefit attributable to FDIC loss share agreements	8,684	5,539	2,930
Total provision for loan losses charged to operations	8,684	5,539	2,930
Loans individually evaluated for impairment	1,624	1,337	1,607
Loans collectively evaluated for impairment	41,824	35,623	32,483
Loans:
Loans individually evaluated for impairment	63,423	21,211	30,218
Loans collectively evaluated for impairment	6,428,732	5,219,830	4,190,508
Acquired credit impaired loans
Allowance for loan losses:
Balance at the beginning of the period	3,395	3,706	7,365
Provision for loan losses before benefit attributable to FDIC loss share agreements	2,053	588	(252)
Benefits attributable to FDIC loss share agreements		23	786
Total provision for loan losses charged to operations	2,053	611	534
Provision for loan losses recorded through the FDIC loss share receivable		(23)	(786)
Reduction due to loan removals	(821)	(899)	(3,407)
Balance at the end of the period	4,627	3,395	3,706
Loans collectively evaluated for impairment	4,627	3,395	3,706
Loans:
Loans collectively evaluated for impairment	623,430	605,941	737,576
Carrying value	623,430	605,941	737,576
Residential real estate
Loans:
Carrying value	260,787	258,100
Residential real estate | Acquired credit impaired loans
Allowance for loan losses:
Balance at the beginning of the period	2,419	2,986	4,387
Provision for loan losses before benefit attributable to FDIC loss share agreements	1,662	(129)	99
Benefits attributable to FDIC loss share agreements		23	228
Total provision for loan losses charged to operations	1,662	(106)	327
Provision for loan losses recorded through the FDIC loss share receivable		(23)	(228)
Reduction due to loan removals	(528)	(438)	(1,500)
Balance at the end of the period	3,553	2,419	2,986
Loans collectively evaluated for impairment	3,553	2,419	2,986
Loans:
Loans collectively evaluated for impairment	260,787	258,100	313,319
Carrying value	260,787	258,100	313,319
Commercial non-owner occupied real estate | Construction and land development | Non-acquired loans
Allowance for loan losses:
Total provision for loan losses charged to operations	1,408	(778)	(1,707)
Loans individually evaluated for impairment	1,063	348	615
Loans collectively evaluated for impairment	4,858	3,743	3,501
Loans:
Loans individually evaluated for impairment	43,230	3,033	6,280
Loans collectively evaluated for impairment	787,645	577,431	395,699
Commercial non-owner occupied real estate | Construction and land development | Acquired credit impaired loans
Allowance for loan losses:
Balance at the beginning of the period	139	177	336
Provision for loan losses before benefit attributable to FDIC loss share agreements	163		(68)
Benefits attributable to FDIC loss share agreements			74
Total provision for loan losses charged to operations	163		6
Provision for loan losses recorded through the FDIC loss share receivable			(74)
Reduction due to loan removals	(122)	(38)	(91)
Balance at the end of the period	180	139	177
Loans collectively evaluated for impairment	180	139	177
Loans:
Loans collectively evaluated for impairment	49,649	44,373	54,272
Carrying value	49,649	44,373	54,272
Commercial non-owner occupied real estate | Other commercial non-owner occupied real estate | Non-acquired loans
Allowance for loan losses:
Total provision for loan losses charged to operations	1,413	1,011	503
Loans individually evaluated for impairment	125	170	34
Loans collectively evaluated for impairment	6,400	4,810	3,534
Loans:
Loans individually evaluated for impairment	1,375	806	1,452
Loans collectively evaluated for impairment	1,007,518	713,909	486,325
Commercial non-owner occupied real estate | Other commercial non-owner occupied real estate | Acquired credit impaired loans
Allowance for loan losses:
Balance at the beginning of the period	41	56	1,579
Provision for loan losses before benefit attributable to FDIC loss share agreements	247	1	(499)
Benefits attributable to FDIC loss share agreements			459
Total provision for loan losses charged to operations	247	1	(40)
Provision for loan losses recorded through the FDIC loss share receivable			(459)
Reduction due to loan removals		(16)	(1,024)
Balance at the end of the period	288	41	56
Loans collectively evaluated for impairment	288	41	56
Loans:
Loans collectively evaluated for impairment	234,595	218,821	268,058
Carrying value	234,595	218,821	268,058
Consumer real estate | Acquired credit impaired loans
Allowance for loan losses:
Balance at the beginning of the period	558	313	275
Provision for loan losses before benefit attributable to FDIC loss share agreements	(83)	533	336
Benefits attributable to FDIC loss share agreements			(107)
Total provision for loan losses charged to operations	(83)	533	229
Provision for loan losses recorded through the FDIC loss share receivable			107
Reduction due to loan removals	(14)	(288)	(298)
Balance at the end of the period	461	558	313
Loans collectively evaluated for impairment	461	558	313
Loans:
Loans collectively evaluated for impairment	51,453	59,300	70,734
Carrying value	51,453	59,300	70,734
Consumer real estate | Home equity loans | Non-acquired loans
Allowance for loan losses:
Total provision for loan losses charged to operations	159	791	403
Loans individually evaluated for impairment	135	40	3
Loans collectively evaluated for impairment	3,115	3,171	2,926
Loans:
Loans individually evaluated for impairment	3,011	1,674	309
Loans collectively evaluated for impairment	434,631	381,544	318,946
Commercial and industrial
Loans:
Carrying value	26,946	25,347
Commercial and industrial | Non-acquired loans
Allowance for loan losses:
Total provision for loan losses charged to operations	1,079	1,452	(74)
Loans individually evaluated for impairment	15	386	279
Loans collectively evaluated for impairment	5,473	4,456	3,695
Loans:
Loans individually evaluated for impairment	1,156	1,263	1,487
Loans collectively evaluated for impairment	814,031	670,135	502,321
Commercial and industrial | Acquired credit impaired loans
Allowance for loan losses:
Balance at the beginning of the period	238	174	718
Provision for loan losses before benefit attributable to FDIC loss share agreements	64	183	(118)
Benefits attributable to FDIC loss share agreements			131
Total provision for loan losses charged to operations	64	183	13
Provision for loan losses recorded through the FDIC loss share receivable			(131)
Reduction due to loan removals	(157)	(119)	(426)
Balance at the end of the period	145	238	174
Loans collectively evaluated for impairment	145	238	174
Loans:
Loans collectively evaluated for impairment	26,946	25,347	31,193
Carrying value	26,946	25,347	31,193
Other income producing property | Non-acquired loans
Allowance for loan losses:
Total provision for loan losses charged to operations	(201)	(501)	(252)
Loans individually evaluated for impairment	178	242	422
Loans collectively evaluated for impairment	1,197	1,300	1,541
Loans:
Loans individually evaluated for impairment	3,138	2,372	4,891
Loans collectively evaluated for impairment	190,709	175,866	170,957
Consumer
Loans:
Carrying value	51,453	59,300
Consumer | Non-acquired loans
Allowance for loan losses:
Total provision for loan losses charged to operations	3,010	3,310	2,890
Loans individually evaluated for impairment	7	4	3
Loans collectively evaluated for impairment	2,781	2,346	1,691
Loans:
Loans individually evaluated for impairment	239	145	102
Loans collectively evaluated for impairment	378,746	324,093	233,002
Consumer | Acquired credit impaired loans
Loans:
Carrying value	$ 51,453	$ 59,300
Single pay loans | Acquired credit impaired loans
Allowance for loan losses:
Balance at the beginning of the period			70
Provision for loan losses before benefit attributable to FDIC loss share agreements			(2)
Benefits attributable to FDIC loss share agreements			1
Total provision for loan losses charged to operations			(1)
Provision for loan losses recorded through the FDIC loss share receivable			(1)
Reduction due to loan removals			$ (68)

Loans and Allowance for Loan 82

Loans and Allowance for Loan Losses - Credit risk profile by risk grade of non acquired loans - (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Mar. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Loans and Allowance for Loan Losses
Total loans	$ 1,289
Other Real Estate, Non Covered	11,203	$ 18,316	$ 4,200	$ 24,803	$ 26,499
Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	6,492,155	5,241,041		4,220,726
Classified assets	40,500	42,800
Other Real Estate, Non Covered	2,400	3,900
Non-acquired loans | Pass
Loans and Allowance for Loan Losses
Total loans	6,375,759	5,112,628
Non-acquired loans | Special mention
Loans and Allowance for Loan Losses
Total loans	78,325	89,489
Non-acquired loans | Substandard and doubtful
Loans and Allowance for Loan Losses
Total loans	38,100	38,900
Non-acquired loans | Substandard
Loans and Allowance for Loan Losses
Total loans	38,071	38,924
Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Total loans	3,507,907	836,699		1,049,538
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	3,507,907	836,699
Acquired non-credit impaired loans | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	3,438,030	812,320
Acquired non-credit impaired loans | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	49,868	13,355
Acquired non-credit impaired loans | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	20,009	11,024
Acquired credit impaired loans
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	623,430	605,941		737,576
Acquired credit impaired loans | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	369,348	356,544
Acquired credit impaired loans | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	106,723	115,726
Acquired credit impaired loans | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	147,359	133,671
Residential real estate
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	260,787	258,100
Residential real estate | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	135,974	138,343
Residential real estate | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	54,500	52,546
Residential real estate | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	70,313	67,211
Residential real estate | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	260,787	258,100		313,319
Commercial non-owner occupied real estate | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	1,839,768	1,295,179
Commercial non-owner occupied real estate | Non-acquired loans | Construction and land development
Loans and Allowance for Loan Losses
Total loans	830,875	580,464		401,979
Commercial non-owner occupied real estate | Non-acquired loans | Construction and land development | Pass
Loans and Allowance for Loan Losses
Total loans	818,240	567,398
Commercial non-owner occupied real estate | Non-acquired loans | Construction and land development | Special mention
Loans and Allowance for Loan Losses
Total loans	8,758	8,421
Commercial non-owner occupied real estate | Non-acquired loans | Construction and land development | Substandard
Loans and Allowance for Loan Losses
Total loans	3,877	4,645
Commercial non-owner occupied real estate | Non-acquired loans | Other commercial non-owner occupied real estate
Loans and Allowance for Loan Losses
Total loans	1,008,893	714,715		487,777
Commercial non-owner occupied real estate | Non-acquired loans | Other commercial non-owner occupied real estate | Pass
Loans and Allowance for Loan Losses
Total loans	999,049	701,150
Commercial non-owner occupied real estate | Non-acquired loans | Other commercial non-owner occupied real estate | Special mention
Loans and Allowance for Loan Losses
Total loans	7,864	11,434
Commercial non-owner occupied real estate | Non-acquired loans | Other commercial non-owner occupied real estate | Substandard
Loans and Allowance for Loan Losses
Total loans	1,980	2,131
Commercial non-owner occupied real estate | Acquired non-credit impaired loans | Construction and land development
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	403,357	10,090
Commercial non-owner occupied real estate | Acquired non-credit impaired loans | Construction and land development | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	394,139	8,997
Commercial non-owner occupied real estate | Acquired non-credit impaired loans | Construction and land development | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	4,602	253
Commercial non-owner occupied real estate | Acquired non-credit impaired loans | Construction and land development | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	4,616	840
Commercial non-owner occupied real estate | Acquired non-credit impaired loans | Other commercial non-owner occupied real estate
Loans and Allowance for Loan Losses
Total loans	817,166	34,628		40,103
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	817,166	34,628
Commercial non-owner occupied real estate | Acquired non-credit impaired loans | Other commercial non-owner occupied real estate | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	809,241	28,368
Commercial non-owner occupied real estate | Acquired non-credit impaired loans | Other commercial non-owner occupied real estate | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	7,913	6,171
Commercial non-owner occupied real estate | Acquired non-credit impaired loans | Other commercial non-owner occupied real estate | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	12	89
Commercial non-owner occupied real estate | Acquired credit impaired loans | Construction and land development
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	49,649	44,373		54,272
Commercial non-owner occupied real estate | Acquired credit impaired loans | Construction and land development | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	29,620	21,150
Commercial non-owner occupied real estate | Acquired credit impaired loans | Construction and land development | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	5,132	12,643
Commercial non-owner occupied real estate | Acquired credit impaired loans | Construction and land development | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	14,897	10,580
Commercial non-owner occupied real estate | Acquired credit impaired loans | Construction and land development | Doubtful
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	49,649	44,373
Commercial non-owner occupied real estate | Acquired credit impaired loans | Other commercial non-owner occupied real estate
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	234,595	218,821		268,058
Commercial non-owner occupied real estate | Acquired credit impaired loans | Other commercial non-owner occupied real estate | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	177,231	171,167
Commercial non-owner occupied real estate | Acquired credit impaired loans | Other commercial non-owner occupied real estate | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	28,708	26,238
Commercial non-owner occupied real estate | Acquired credit impaired loans | Other commercial non-owner occupied real estate | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	28,656	21,416
Commercial non-owner occupied real estate | Acquired credit impaired loans | Other commercial non-owner occupied real estate | Doubtful
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	234,595	218,821
Commercial owner occupied real estate loan | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	1,262,776	1,177,745		1,033,398
Commercial owner occupied real estate loan | Non-acquired loans | Pass
Loans and Allowance for Loan Losses
Total loans	1,232,927	1,149,417
Commercial owner occupied real estate loan | Non-acquired loans | Special mention
Loans and Allowance for Loan Losses
Total loans	23,575	22,133
Commercial owner occupied real estate loan | Non-acquired loans | Substandard
Loans and Allowance for Loan Losses
Total loans	6,274	6,195
Commercial owner occupied real estate loan | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	521,818	27,195
Commercial owner occupied real estate loan | Acquired non-credit impaired loans | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	513,861	26,920
Commercial owner occupied real estate loan | Acquired non-credit impaired loans | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	7,740
Commercial owner occupied real estate loan | Acquired non-credit impaired loans | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	217	275
Consumer real estate | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	1,967,902	1,580,839
Consumer real estate | Non-acquired loans | Home equity loans
Loans and Allowance for Loan Losses
Total loans	437,642	383,218		319,255
Consumer real estate | Non-acquired loans | Home equity loans | Pass
Loans and Allowance for Loan Losses
Total loans	424,369	368,655
Consumer real estate | Non-acquired loans | Home equity loans | Special mention
Loans and Allowance for Loan Losses
Total loans	6,749	8,145
Consumer real estate | Non-acquired loans | Home equity loans | Substandard
Loans and Allowance for Loan Losses
Total loans	6,524	6,418
Consumer real estate | Non-acquired loans | Other Consumer
Loans and Allowance for Loan Losses
Total loans	33,690	13,404
Consumer real estate | Non-acquired loans | Other Consumer | Pass
Loans and Allowance for Loan Losses
Total loans	33,690	13,404
Consumer real estate | Non-acquired loans | Consumer Owner Occupied Loans
Loans and Allowance for Loan Losses
Total loans	1,530,260	1,197,621		1,018,984
Consumer real estate | Non-acquired loans | Consumer Owner Occupied Loans | Pass
Loans and Allowance for Loan Losses
Total loans	1,502,016	1,167,768
Consumer real estate | Non-acquired loans | Consumer Owner Occupied Loans | Special mention
Loans and Allowance for Loan Losses
Total loans	13,902	15,283
Consumer real estate | Non-acquired loans | Consumer Owner Occupied Loans | Substandard
Loans and Allowance for Loan Losses
Total loans	14,342	14,570
Consumer real estate | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	1,170,201	711,803
Consumer real estate | Acquired non-credit impaired loans | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	1,141,218	696,199
Consumer real estate | Acquired non-credit impaired loans | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	15,183	6,541
Consumer real estate | Acquired non-credit impaired loans | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	13,800	9,063
Consumer real estate | Acquired non-credit impaired loans | Home equity loans
Loans and Allowance for Loan Losses
Total loans	320,591	160,879		190,968
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	320,591	160,879
Consumer real estate | Acquired non-credit impaired loans | Home equity loans | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	301,842	151,752
Consumer real estate | Acquired non-credit impaired loans | Home equity loans | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	10,477	4,113
Consumer real estate | Acquired non-credit impaired loans | Home equity loans | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	8,272	5,014
Consumer real estate | Acquired non-credit impaired loans | Other Consumer
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	137,710	142,654
Consumer real estate | Acquired non-credit impaired loans | Other Consumer | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	134,530	139,686
Consumer real estate | Acquired non-credit impaired loans | Other Consumer | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	541	1,102
Consumer real estate | Acquired non-credit impaired loans | Other Consumer | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	2,639	1,866
Consumer real estate | Acquired non-credit impaired loans | Consumer Owner Occupied Loans
Loans and Allowance for Loan Losses
Total loans	710,611	408,270		518,107
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	710,611	408,270
Consumer real estate | Acquired non-credit impaired loans | Consumer Owner Occupied Loans | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	703,557	404,761
Consumer real estate | Acquired non-credit impaired loans | Consumer Owner Occupied Loans | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	4,165	1,326
Consumer real estate | Acquired non-credit impaired loans | Consumer Owner Occupied Loans | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	2,889	2,183
Consumer real estate | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	51,453	59,300		70,734
Commercial and industrial
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	26,946	25,347
Commercial and industrial | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	18,522	17,371
Commercial and industrial | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	1,169	4,614
Commercial and industrial | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	7,255	3,362
Commercial and industrial | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	815,187	671,398		503,808
Commercial and industrial | Non-acquired loans | Pass
Loans and Allowance for Loan Losses
Total loans	801,885	655,157
Commercial and industrial | Non-acquired loans | Special mention
Loans and Allowance for Loan Losses
Total loans	11,130	14,325
Commercial and industrial | Non-acquired loans | Substandard
Loans and Allowance for Loan Losses
Total loans	2,172	1,916
Commercial and industrial | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Total loans	398,696	13,641		25,475
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	398,696	13,641
Commercial and industrial | Acquired non-credit impaired loans | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	388,342	13,475
Commercial and industrial | Acquired non-credit impaired loans | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	9,883	117
Commercial and industrial | Acquired non-credit impaired loans | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	471	49
Commercial and industrial | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	26,946	25,347		31,193
Other income producing property | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	193,847	178,238		175,848
Other income producing property | Non-acquired loans | Pass
Loans and Allowance for Loan Losses
Total loans	186,158	167,025
Other income producing property | Non-acquired loans | Special mention
Loans and Allowance for Loan Losses
Total loans	6,034	9,280
Other income producing property | Non-acquired loans | Substandard
Loans and Allowance for Loan Losses
Total loans	1,655	1,933
Other income producing property | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Total loans	196,669	39,342		51,169
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	196,669	39,342
Other income producing property | Acquired non-credit impaired loans | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	191,229	38,361
Other income producing property | Acquired non-credit impaired loans | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	4,547	273
Other income producing property | Acquired non-credit impaired loans | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	893	708
Consumer
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	51,453	59,300
Consumer | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	8,001	8,513
Consumer | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	17,214	19,685
Consumer | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	26,238	31,102
Consumer | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	378,985	324,238		233,104
Consumer | Non-acquired loans | Pass
Loans and Allowance for Loan Losses
Total loans	377,425	322,654
Consumer | Non-acquired loans | Special mention
Loans and Allowance for Loan Losses
Total loans	313	468
Consumer | Non-acquired loans | Substandard
Loans and Allowance for Loan Losses
Total loans	1,247	1,116
Consumer | Non-acquired loans | All Consumer
Loans and Allowance for Loan Losses
Total loans	2,380,577	1,918,481
Consumer | Non-acquired loans | All Consumer | Pass
Loans and Allowance for Loan Losses
Total loans	2,337,500	1,872,481
Consumer | Non-acquired loans | All Consumer | Special mention
Loans and Allowance for Loan Losses
Total loans	20,964	23,896
Consumer | Non-acquired loans | All Consumer | Substandard
Loans and Allowance for Loan Losses
Total loans	22,113	22,104
Consumer | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Total loans	137,710	142,654		170,647
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	137,710	142,654
Consumer | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	51,453	59,300
Commercial | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	4,111,578	3,322,560
Commercial | Non-acquired loans | Pass
Loans and Allowance for Loan Losses
Total loans	4,038,259	3,240,147
Commercial | Non-acquired loans | Special mention
Loans and Allowance for Loan Losses
Total loans	57,361	65,593
Commercial | Non-acquired loans | Substandard
Loans and Allowance for Loan Losses
Total loans	15,958	16,820
Commercial | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	2,337,706	124,896
Commercial | Acquired non-credit impaired loans | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	2,296,812	116,121
Commercial | Acquired non-credit impaired loans | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	34,685	6,814
Commercial | Acquired non-credit impaired loans | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	6,209	1,961
Commercial | Acquired non-credit impaired loans | Construction and land development
Loans and Allowance for Loan Losses
Total loans	403,357	10,090		13,849
Commercial | Acquired non-credit impaired loans | Other commercial non-owner occupied real estate
Loans and Allowance for Loan Losses
Total loans	521,818	27,195		39,220
Other loans
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	1,289
Other loans | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	1,289
Other loans | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	33,690	$ 13,404		$ 46,573
Other loans | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	$ 1,289

Loans and Allowance for Loan 83

Loans and Allowance for Loan Losses - Aging analysis of past due loans - (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Loans and Allowance for Loan Losses
Total loans	$ 1,289
Non-acquired loans
Loans and Allowance for Loan Losses
Past due	16,039	$ 15,345
Current	6,476,116	5,225,696
Total loans	6,492,155	5,241,041	$ 4,220,726
Non-acquired loans | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	6,640	6,223
Non-acquired loans | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	1,863	3,302
Non-acquired loans | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	7,536	5,820
Acquired credit impaired loans
Loans and Allowance for Loan Losses
Past due	36,513	24,066
Current	586,917	581,875
Acquired credit impaired loans | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	10,810	6,887
Acquired credit impaired loans | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	8,998	2,356
Acquired credit impaired loans | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	16,705	14,823
Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Past due	19,608	4,484
Current	3,488,299	832,215
Total loans	3,507,907	836,699	1,049,538
Acquired non-credit impaired loans | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	12,364	1,380
Acquired non-credit impaired loans | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	2,639	1,265
Acquired non-credit impaired loans | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	4,605	1,839
Residential real estate | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Past due	19,002	12,570
Current	241,785	245,530
Residential real estate | Acquired credit impaired loans | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	5,895	4,688
Residential real estate | Acquired credit impaired loans | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	4,283	1,105
Residential real estate | Acquired credit impaired loans | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	8,824	6,777
Commercial non-owner occupied real estate | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	1,839,768	1,295,179
Commercial non-owner occupied real estate | Non-acquired loans | Construction and land development
Loans and Allowance for Loan Losses
Past due	855	1,595
Current	830,020	578,869
Total loans	830,875	580,464	401,979
Commercial non-owner occupied real estate | Non-acquired loans | Construction and land development | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	391	256
Commercial non-owner occupied real estate | Non-acquired loans | Construction and land development | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	63	313
Commercial non-owner occupied real estate | Non-acquired loans | Construction and land development | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	401	1,026
Commercial non-owner occupied real estate | Non-acquired loans | Other commercial non-owner occupied real estate
Loans and Allowance for Loan Losses
Past due	746	1,016
Current	1,008,147	713,699
Total loans	1,008,893	714,715	487,777
Commercial non-owner occupied real estate | Non-acquired loans | Other commercial non-owner occupied real estate | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	297	647
Commercial non-owner occupied real estate | Non-acquired loans | Other commercial non-owner occupied real estate | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	398	232
Commercial non-owner occupied real estate | Non-acquired loans | Other commercial non-owner occupied real estate | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	51	137
Commercial non-owner occupied real estate | Acquired credit impaired loans | Construction and land development
Loans and Allowance for Loan Losses
Past due	4,999	4,269
Current	44,650	40,104
Commercial non-owner occupied real estate | Acquired credit impaired loans | Construction and land development | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	811	168
Commercial non-owner occupied real estate | Acquired credit impaired loans | Construction and land development | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	427	489
Commercial non-owner occupied real estate | Acquired credit impaired loans | Construction and land development | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	3,761	3,612
Commercial non-owner occupied real estate | Acquired credit impaired loans | Other commercial non-owner occupied real estate
Loans and Allowance for Loan Losses
Past due	9,013	3,597
Current	225,582	215,224
Commercial non-owner occupied real estate | Acquired credit impaired loans | Other commercial non-owner occupied real estate | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	2,519	573
Commercial non-owner occupied real estate | Acquired credit impaired loans | Other commercial non-owner occupied real estate | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	3,669	357
Commercial non-owner occupied real estate | Acquired credit impaired loans | Other commercial non-owner occupied real estate | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	2,825	2,667
Commercial non-owner occupied real estate | Acquired non-credit impaired loans | Construction and land development
Loans and Allowance for Loan Losses
Past due	889	164
Current	402,468	9,926
Commercial non-owner occupied real estate | Acquired non-credit impaired loans | Construction and land development | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	675	4
Commercial non-owner occupied real estate | Acquired non-credit impaired loans | Construction and land development | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	113
Commercial non-owner occupied real estate | Acquired non-credit impaired loans | Construction and land development | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	101	160
Commercial non-owner occupied real estate | Acquired non-credit impaired loans | Other commercial non-owner occupied real estate
Loans and Allowance for Loan Losses
Past due	333
Current	816,833	34,628
Total loans	817,166	34,628	40,103
Commercial non-owner occupied real estate | Acquired non-credit impaired loans | Other commercial non-owner occupied real estate | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	12
Commercial non-owner occupied real estate | Acquired non-credit impaired loans | Other commercial non-owner occupied real estate | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	321
Commercial owner occupied real estate loan | Non-acquired loans
Loans and Allowance for Loan Losses
Past due	4,330	3,707
Current	1,258,446	1,174,038
Total loans	1,262,776	1,177,745	1,033,398
Commercial owner occupied real estate loan | Non-acquired loans | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	2,227	1,272
Commercial owner occupied real estate loan | Non-acquired loans | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	382	957
Commercial owner occupied real estate loan | Non-acquired loans | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	1,721	1,478
Commercial owner occupied real estate loan | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Past due	831	106
Current	520,987	27,089
Commercial owner occupied real estate loan | Acquired non-credit impaired loans | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	642
Commercial owner occupied real estate loan | Acquired non-credit impaired loans | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	189	106
Consumer real estate | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	1,967,902	1,580,839
Consumer real estate | Non-acquired loans | Home equity loans
Loans and Allowance for Loan Losses
Past due	3,265	2,293
Current	434,377	380,925
Total loans	437,642	383,218	319,255
Consumer real estate | Non-acquired loans | Home equity loans | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	1,209	566
Consumer real estate | Non-acquired loans | Home equity loans | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	372	889
Consumer real estate | Non-acquired loans | Home equity loans | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	1,684	838
Consumer real estate | Non-acquired loans | Consumer Owner Occupied Loans
Loans and Allowance for Loan Losses
Past due	3,374	3,173
Current	1,526,886	1,194,448
Total loans	1,530,260	1,197,621	1,018,984
Consumer real estate | Non-acquired loans | Consumer Owner Occupied Loans | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	1,291	1,473
Consumer real estate | Non-acquired loans | Consumer Owner Occupied Loans | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	140	246
Consumer real estate | Non-acquired loans | Consumer Owner Occupied Loans | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	1,943	1,454
Consumer real estate | Non-acquired loans | Other Consumer
Loans and Allowance for Loan Losses
Total loans	33,690	13,404
Consumer real estate | Acquired non-credit impaired loans | Home equity loans
Loans and Allowance for Loan Losses
Past due	5,952	2,158
Current	314,639	158,721
Total loans	320,591	160,879	190,968
Consumer real estate | Acquired non-credit impaired loans | Home equity loans | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	3,639	476
Consumer real estate | Acquired non-credit impaired loans | Home equity loans | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	609	941
Consumer real estate | Acquired non-credit impaired loans | Home equity loans | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	1,704	741
Consumer real estate | Acquired non-credit impaired loans | Consumer Owner Occupied Loans
Loans and Allowance for Loan Losses
Past due	1,744	699
Current	708,867	407,571
Total loans	710,611	408,270	518,107
Consumer real estate | Acquired non-credit impaired loans | Consumer Owner Occupied Loans | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	673	330
Consumer real estate | Acquired non-credit impaired loans | Consumer Owner Occupied Loans | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	204	113
Consumer real estate | Acquired non-credit impaired loans | Consumer Owner Occupied Loans | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	867	256
Commercial and industrial | Non-acquired loans
Loans and Allowance for Loan Losses
Past due	1,449	1,594
Current	813,738	669,804
Total loans	815,187	671,398	503,808
Commercial and industrial | Non-acquired loans | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	477	1,033
Commercial and industrial | Non-acquired loans | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	57	216
Commercial and industrial | Non-acquired loans | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	915	345
Commercial and industrial | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Past due	1,169	606
Current	25,777	24,741
Commercial and industrial | Acquired credit impaired loans | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	596	46
Commercial and industrial | Acquired credit impaired loans | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	167	24
Commercial and industrial | Acquired credit impaired loans | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	406	536
Commercial and industrial | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Past due	7,417	2
Current	391,279	13,639
Total loans	398,696	13,641	25,475
Commercial and industrial | Acquired non-credit impaired loans | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	5,996	2
Commercial and industrial | Acquired non-credit impaired loans | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	1,278
Commercial and industrial | Acquired non-credit impaired loans | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	143
Other income producing property | Non-acquired loans
Loans and Allowance for Loan Losses
Past due	676	551
Current	193,171	177,687
Total loans	193,847	178,238	175,848
Other income producing property | Non-acquired loans | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	223	310
Other income producing property | Non-acquired loans | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	255	94
Other income producing property | Non-acquired loans | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	198	147
Other income producing property | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Past due	577	132
Current	196,092	39,210
Total loans	196,669	39,342	51,169
Other income producing property | Acquired non-credit impaired loans | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	327	131
Other income producing property | Acquired non-credit impaired loans | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due		1
Other income producing property | Acquired non-credit impaired loans | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	250
Consumer | Non-acquired loans
Loans and Allowance for Loan Losses
Past due	1,344	1,416
Current	377,641	322,822
Total loans	378,985	324,238	233,104
Consumer | Non-acquired loans | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	525	666
Consumer | Non-acquired loans | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	196	355
Consumer | Non-acquired loans | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	623	395
Consumer | Non-acquired loans | All Consumer
Loans and Allowance for Loan Losses
Total loans	2,380,577	1,918,481
Consumer | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Past due	2,330	3,024
Current	49,123	56,276
Consumer | Acquired credit impaired loans | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	989	1,412
Consumer | Acquired credit impaired loans | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	452	381
Consumer | Acquired credit impaired loans | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	889	1,231
Consumer | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Past due	1,865	1,223
Current	135,845	141,431
Total loans	137,710	142,654	170,647
Consumer | Acquired non-credit impaired loans | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	400	437
Consumer | Acquired non-credit impaired loans | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	114	210
Consumer | Acquired non-credit impaired loans | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	1,351	576
Commercial | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	4,111,578	3,322,560
Commercial | Acquired non-credit impaired loans | Construction and land development
Loans and Allowance for Loan Losses
Total loans	403,357	10,090	13,849
Commercial | Acquired non-credit impaired loans | Other commercial non-owner occupied real estate
Loans and Allowance for Loan Losses
Total loans	521,818	27,195	39,220
Other loans | Non-acquired loans
Loans and Allowance for Loan Losses
Current	33,690	13,404
Total loans	33,690	$ 13,404	$ 46,573
Other loans | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Current	$ 1,289

Loans and Allowance for Loan 84

Loans and Allowance for Loan Losses - Nonaccrual loans - (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Loans and Allowance for Loan Losses
Unpaid Contractual Principal Balance	$ 77,648	$ 35,079
Recorded Investment With No Allowance	10,985	7,736
Gross Recorded Investment With Allowance	52,438	13,475
Total Recorded Investment	63,423	21,211
Related Allowance	1,624	1,337
Average Investment In Impaired Loans	42,318	25,715	$ 28,651
Interest Income Recognized	1,984	913	1,216
Non acquired non-accrual loans
Loans and Allowance for Loan Losses
Nonaccrual loans	14,340	14,464
Acquired non-credit impaired non-accrual loans
Loans and Allowance for Loan Losses
Nonaccrual loans	9,397	4,728
Commercial non-owner occupied real estate | Construction and land development
Loans and Allowance for Loan Losses
Unpaid Contractual Principal Balance	47,553	7,394
Recorded Investment With No Allowance	649	1,074
Gross Recorded Investment With Allowance	42,581	1,959
Total Recorded Investment	43,230	3,033
Related Allowance	1,063	348
Average Investment In Impaired Loans	23,132	4,657	5,566
Interest Income Recognized	1,138	120	263
Commercial non-owner occupied real estate | Other commercial non-owner occupied real estate
Loans and Allowance for Loan Losses
Unpaid Contractual Principal Balance	3,106	2,417
Recorded Investment With No Allowance	860	223
Gross Recorded Investment With Allowance	515	583
Total Recorded Investment	1,375	806
Related Allowance	125	170
Average Investment In Impaired Loans	1,091	1,129	2,531
Interest Income Recognized	45	32	66
Commercial non-owner occupied real estate | Non acquired non-accrual loans
Loans and Allowance for Loan Losses
Nonaccrual loans	2,886	1,250
Commercial non-owner occupied real estate | Non acquired non-accrual loans | Construction and land development
Loans and Allowance for Loan Losses
Nonaccrual loans	251	672
Commercial non-owner occupied real estate | Non acquired non-accrual loans | Other commercial non-owner occupied real estate
Loans and Allowance for Loan Losses
Nonaccrual loans	2,635	578
Commercial non-owner occupied real estate | Acquired non-credit impaired non-accrual loans
Loans and Allowance for Loan Losses
Nonaccrual loans	108	232
Commercial non-owner occupied real estate | Acquired non-credit impaired non-accrual loans | Construction and land development
Loans and Allowance for Loan Losses
Nonaccrual loans	108	232
Commercial owner occupied real estate loan
Loans and Allowance for Loan Losses
Unpaid Contractual Principal Balance	9,212	10,118
Recorded Investment With No Allowance	3,553	3,976
Gross Recorded Investment With Allowance	2,089	2,269
Total Recorded Investment	5,642	6,245
Related Allowance	64	67
Average Investment In Impaired Loans	5,943	6,985	8,442
Interest Income Recognized	268	291	368
Commercial owner occupied real estate loan | Non acquired non-accrual loans
Loans and Allowance for Loan Losses
Nonaccrual loans	1,144	2,189
Commercial owner occupied real estate loan | Acquired non-credit impaired non-accrual loans
Loans and Allowance for Loan Losses
Nonaccrual loans	189	61
Consumer real estate | Home equity loans
Loans and Allowance for Loan Losses
Unpaid Contractual Principal Balance	3,602	2,165
Recorded Investment With No Allowance	896	244
Gross Recorded Investment With Allowance	2,115	1,430
Total Recorded Investment	3,011	1,674
Related Allowance	135	40
Average Investment In Impaired Loans	2,343	992	170
Interest Income Recognized	113	61	10
Consumer real estate | Consumer Owner Occupied Loans
Loans and Allowance for Loan Losses
Unpaid Contractual Principal Balance	7,382	7,090
Recorded Investment With No Allowance	4,392	2,120
Gross Recorded Investment With Allowance	1,240	3,553
Total Recorded Investment	5,632	5,673
Related Allowance	37	80
Average Investment In Impaired Loans	5,653	6,611	5,257
Interest Income Recognized	195	206	183
Consumer real estate | Non acquired non-accrual loans
Loans and Allowance for Loan Losses
Nonaccrual loans	5,157	7,340
Consumer real estate | Non acquired non-accrual loans | Home equity loans
Loans and Allowance for Loan Losses
Nonaccrual loans	269	1,629
Consumer real estate | Non acquired non-accrual loans | Consumer Owner Occupied Loans
Loans and Allowance for Loan Losses
Nonaccrual loans	4,888	5,711
Consumer real estate | Acquired non-credit impaired non-accrual loans
Loans and Allowance for Loan Losses
Nonaccrual loans	6,745	3,048
Consumer real estate | Acquired non-credit impaired non-accrual loans | Home equity loans
Loans and Allowance for Loan Losses
Nonaccrual loans	4,589	1,643
Consumer real estate | Acquired non-credit impaired non-accrual loans | Consumer Owner Occupied Loans
Loans and Allowance for Loan Losses
Nonaccrual loans	2,156	1,405
Commercial and industrial
Loans and Allowance for Loan Losses
Unpaid Contractual Principal Balance	2,246	2,335
Recorded Investment With No Allowance	635
Gross Recorded Investment With Allowance	521	1,263
Total Recorded Investment	1,156	1,263
Related Allowance	15	386
Average Investment In Impaired Loans	1,209	1,375	1,198
Interest Income Recognized	48	52	61
Commercial and industrial | Non acquired non-accrual loans
Loans and Allowance for Loan Losses
Nonaccrual loans	1,662	420
Commercial and industrial | Acquired non-credit impaired non-accrual loans
Loans and Allowance for Loan Losses
Nonaccrual loans	133	1
Other income producing property
Loans and Allowance for Loan Losses
Unpaid Contractual Principal Balance	3,893	3,166
Recorded Investment With No Allowance		99
Gross Recorded Investment With Allowance	3,138	2,273
Total Recorded Investment	3,138	2,372
Related Allowance	178	242
Average Investment In Impaired Loans	2,755	3,632	5,195
Interest Income Recognized	171	145	245
Other income producing property | Non acquired non-accrual loans
Loans and Allowance for Loan Losses
Nonaccrual loans	764	356
Other income producing property | Acquired non-credit impaired non-accrual loans
Loans and Allowance for Loan Losses
Nonaccrual loans	316	145
Consumer
Loans and Allowance for Loan Losses
Unpaid Contractual Principal Balance	654	394
Gross Recorded Investment With Allowance	239	145
Total Recorded Investment	239	145
Related Allowance	7	4
Average Investment In Impaired Loans	192	123	81
Interest Income Recognized	6	6	4
Consumer | Non acquired non-accrual loans
Loans and Allowance for Loan Losses
Nonaccrual loans	1,802	930
Consumer | Acquired non-credit impaired non-accrual loans
Loans and Allowance for Loan Losses
Nonaccrual loans	$ 1,906	1,241
Other loans
Loans and Allowance for Loan Losses
Average Investment In Impaired Loans		211	211
Interest Income Recognized			$ 16
Restructured loans | ASC Topic 31020 Loans | Minimum
Loans and Allowance for Loan Losses
Number of months generally required to return to accruing status	6 months
Restructured loans | Non acquired non-accrual loans
Loans and Allowance for Loan Losses
Nonaccrual loans	$ 925	$ 1,979

FDIC Indemnification Asset (Det

FDIC Indemnification Asset (Details) - USD ($) $ in Thousands	Jun. 23, 2016	Mar. 31, 2016	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2015	Dec. 31, 2014
Receivable from FDIC for Loss Share Agreements
Balance at beginning of period			$ 4,401	$ 22,161
Decrease in expected losses on loans			(23)	(788)
Additional recoveries on OREO			(1,736)	(5,440)
Reimbursable expenses			71	789
Amortization of discounts and premiums, net			(1,475)	(8,587)
Payments to (from) FDIC			853	(3,734)
Termination of Loss Share Agreement			(2,091)
Balance at end of period				4,401
Pre- tax charge	$ 4,400
Payment to settle FDIC loss share agreements	2,300
Amortization of FDIC indemnification assets, net		$ 2,100	5,902	8,587
FDIC indemnification asset			$ 4,401	$ 22,161	$ 4,401	$ 22,161
Covered loans	$ 87,400
Other Real Estate, Covered					$ 5,751	$ 16,227

Other Real Estate Owned (Detail

Other Real Estate Owned (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2017USD ($)	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)	Dec. 31, 2017USD ($)property	Nov. 30, 2017USD ($)	Jan. 03, 2017USD ($)	Dec. 31, 2016USD ($)property	Jun. 30, 2016property	Jun. 23, 2016USD ($)	Mar. 31, 2016USD ($)
OREO
Balance at the beginning of the period	$ 18,316	$ 24,803	$ 26,499
Transfers		4,222	2,245
Additions, net	11,558	11,842	21,419
Write-downs	(2,249)	(2,270)	(3,163)
Sold	(18,853)	(20,281)	(22,197)
Balance at the end of the period	11,203	18,316	24,803
Number of properties uncovered | property				82				17
Other Real Estate, Non Covered	18,316	24,803	26,499	$ 11,203			$ 18,316			$ 4,200
Covered OREO
Balance at the beginning of the period		5,751	16,227
Transfers		(4,222)	(2,245)
Additions, net		2,151	9,283
Write-downs		(2,131)	(6,265)
Sold		(1,549)	(11,249)
Balance at the end of the period			5,751
Total
Balance at the beginning of the period	18,316	30,554	42,726
Additions, net	11,558	13,993	30,702
Write-downs	(2,249)	(4,401)	(9,428)
Sold	(18,853)	(21,830)	(33,446)
Balance at the end of the period	11,203	18,316	30,554
Number of properties held | property							90
Covered Other real estate under share agreements	18,316	30,554	42,726	11,203			$ 18,316		$ 3,000
Residential real estate consumer mortgage loans in foreclosure, carrying value				6,100
Carrying value of covered OREO assets		$ 5,751	$ 16,227
Residential real estate
Total
Other Real Estate In Foreclosure				2,600
Southeastern Bank Financial
OREO
OREO acquired in acquisition				$ 385		$ 450
Park Sterling Corporation
OREO
Transfers	2,046
OREO acquired in acquisition					$ 2,120
Total
Transfers	$ 2,046

Premises and Equipment (Details

Premises and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Premises and equipment
Total	$ 415,317	$ 296,794
Less accumulated depreciation	(159,752)	(113,284)
Net premises and equipment	255,565	183,510
Depreciation expense charged to operations	15,200	11,500	$ 11,100
Amortization expense	2,500	2,300	$ 1,800
Land
Premises and equipment
Total	81,291	56,454
Buildings and leasehold improvements
Premises and equipment
Total	$ 227,402	157,927
Buildings and leasehold improvements | Minimum
Premises and equipment
Useful Life	15 years
Buildings and leasehold improvements | Maximum
Premises and equipment
Useful Life	40 years
Equipment and furnishings
Premises and equipment
Total	$ 104,319	78,800
Equipment and furnishings | Minimum
Premises and equipment
Useful Life	3 years
Equipment and furnishings | Maximum
Premises and equipment
Useful Life	10 years
Construction in process
Premises and equipment
Total	$ 2,305	3,613
Computer software
Premises and equipment
Useful Life	36 months
Total	$ 13,000	$ 9,700

Goodwill and Other Intangible88

Goodwill and Other Intangible Assets - Summary of changes - (Details) - USD ($) $ in Thousands	Apr. 30, 2017	Dec. 31, 2017	Nov. 30, 2017	Jan. 03, 2017	Aug. 21, 2015
Impairment of Goodwill	$ 0	$ 0
Goodwill
Goodwill, Beginning Balance		338,340
Goodwill, Ending Balance		999,586
Bank of America
Goodwill
Core deposit intangible					$ 6,800
Southeastern Bank Financial
Goodwill
Additions, Goodwill from acquisition or merger		258,295
Core deposit intangible				$ 18,120
Park Sterling Corporation
Goodwill
Additions, Goodwill from acquisition or merger		$ 402,951
Core deposit intangible			$ 26,175

Goodwill and Other Intangible89

Goodwill and Other Intangible Assets - Summary of gross carrying amounts - (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Other intangible assets
Gross carrying amount	$ 126,449	$ 82,154
Accumulated amortization	(52,660)	(42,306)
Net carrying amount	73,789	39,848
Amortization expense	10,353	7,577	$ 8,324
Estimated amortization expense for other intangibles for each of the next five years
2,018	13,614
2,019	12,585
2,020	11,419
2,021	10,186
2,022	8,918
Thereafter	17,067
Total estimated amortization expense for other intangibles for the next five years	73,789
Amortization of Intangible Assets	$ 10,353	$ 7,577	$ 8,324
Minimum
Other intangible assets
Estimated useful lives	2 years
Maximum
Other intangible assets
Estimated useful lives	15 years

Deposits - Total deposits - (De

Deposits - Total deposits - (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Deposits Disclosure Abstract
Certificates of deposit	$ 1,738,384	$ 872,773
Interest-bearing demand deposits	5,300,108	3,461,004
Non-interest bearing demand deposits	3,047,432	2,199,046
Savings deposits	1,443,918	799,615
Other time deposits	2,924	1,985
Total deposits	$ 11,532,766	$ 7,334,423

Deposits - Certificates of depo

Deposits - Certificates of deposits and Scheduled maturities of time deposits - (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Deposits Disclosure Abstract
Aggregate amounts of certificates of deposits in denominations of $250,000 or more	$ 325,300	$ 83,700
Traditional, out-of-market brokered deposits	43,600	$ 2,900
Scheduled maturities of time deposits of all denominations
2,018	1,131,167
2,019	330,359
2,020	111,836
2,021	119,104
2,022	40,581
Thereafter	8,261
Time deposits	$ 1,741,308

Federal Funds Purchased and S92

Federal Funds Purchased and Securities Sold Under Agreements to Repurchase (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Amount
At period-end	$ 286,857	$ 313,773
Rate
Repurchase agreement	211,100	238,300
Carrying amount of the securities pledged to collateralize repurchase agreements	211,100	238,300
Federal funds purchased and securities sold under repurchase agreements
Amount
At period-end	286,857	313,773	$ 288,231
Average for the year	325,713	320,901	291,428
Maximum month-end balance	$ 401,786	$ 334,260	$ 320,373
Rate
At period-end (as a percent)	0.45%	0.24%	0.19%
Average for the year (as a percent)	0.33%	0.18%	0.14%
Federal funds purchased and securities sold under repurchase agreements | Minimum
Information concerning federal funds purchased and securities sold under repurchase agreements
Maturity period from the transaction date	1 day
Federal funds purchased and securities sold under repurchase agreements | Maximum
Information concerning federal funds purchased and securities sold under repurchase agreements
Maturity period from the transaction date	3 days
Maturity period as per policies	9 months

Other Borrowings (Details)

Other Borrowings (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Other Borrowings
Shot-term borrowings	$ 100,000,000
Long term borrowings	116,385,000	$ 55,358,000
Total borrowings	216,385,000	$ 55,358,000
Weighted average interest rate (as a percent)		2.84%
Discount		$ 213,000
Federal Home Loan Bank Rate Credit maturing 04/27/2018
Other Borrowings
Shot-term borrowings	$ 50,000,000
Fixed interest rate (as a percent)	1.57%
Federal Home Loan Bank Rate Credit maturing 01/16/2018
Other Borrowings
Shot-term borrowings	$ 50,000,000
Fixed interest rate (as a percent)	1.40%
Short term borrowings
Other Borrowings
Weighted average interest rate (as a percent)	1.48%
LIBOR | Minimum
Other Borrowings
Spread on variable rate basis (as a percent)	140.00%
LIBOR | Maximum
Other Borrowings
Spread on variable rate basis (as a percent)	285.00%
SCBT Capital Trust I junior subordinated debt
Other Borrowings
Long term borrowings	$ 12,372,000	$ 12,372,000
Fixed interest rate (as a percent)	3.38%	2.75%
SCBT Capital Trust II junior subordinated debt
Other Borrowings
Long term borrowings	$ 8,248,000	$ 8,248,000
Fixed interest rate (as a percent)	3.38%	2.75%
SCBT Capital Trust III junior subordinated debt
Other Borrowings
Long term borrowings	$ 20,619,000	$ 20,619,000
Fixed interest rate (as a percent)	3.18%	2.55%
SAVB Capital Trust I junior subordinated debt
Other Borrowings
Long term borrowings	$ 6,186,000	$ 6,186,000
Fixed interest rate (as a percent)	4.21%	3.73%
SAVB Capital Trust II junior subordinated debt
Other Borrowings
Long term borrowings	$ 4,124,000	$ 4,124,000
Fixed interest rate (as a percent)	3.79%	3.16%
TSB Statutory Trust I junior subordinated debt
Other Borrowings
Long term borrowings	$ 3,093,000	$ 3,093,000
Fixed interest rate (as a percent)	3.31%	2.68%
Southeastern Bank Financial Statutory Trust I junior subordinated debt
Other Borrowings
Long term borrowings	$ 10,310,000
Fixed interest rate (as a percent)	2.99%
Southeastern Bank Financial Statutory Trust II junior subordinated debt
Other Borrowings
Long term borrowings	$ 10,310,000
Fixed interest rate (as a percent)	2.99%
CSBC Statutory Trust I junior subordinated debt
Other Borrowings
Long term borrowings	$ 15,464,000
Fixed interest rate (as a percent)	3.16%
Community Capital Statutory Trust I junior subordinated debt
Other Borrowings
Long term borrowings	$ 10,310,000
Fixed interest rate (as a percent)	3.14%
FCRV Statutory Trust I junior subordinated debt
Other Borrowings
Long term borrowings	$ 5,155,000
Fixed interest rate (as a percent)	3.29%
Provident Community Bancshares Capital Trust I junior subordinated debt
Other Borrowings
Long term borrowings	$ 4,124,000
Fixed interest rate (as a percent)	3.08%
Provident Community Bancshares Capital Trust II junior subordinated debt
Other Borrowings
Long term borrowings	$ 8,248,000
Fixed interest rate (as a percent)	3.22%
Fair Market Value Discount Trust Preferred Debt Acquired
Other Borrowings
Other long term debt acquired	$ (4,063,000)	$ (213,000)
Other
Other Borrowings
Long term borrowings	1,885,000	$ 929,000
Total borrowings	$ 1,885,000
Fixed interest rate (as a percent)	4.09%	4.07%
Long term borrowings
Other Borrowings
Weighted average interest rate (as a percent)	3.26%

Other Borrowings - Short-term F

Other Borrowings - Short-term FHLB Advances - (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
FHLB Advances
Outstanding advances	$ 100,000,000	$ 0
FHLB Advances
FHLB Advances
Loans pledged via a blanket lien to the FHLB for advances and letters of credit	2,600,000,000
Total borrowing capacity at FHLB	1,900,000,000
Letter of credit borrowed	6,300,000
Unused net credit available with the FHLB	$ 1,900,000,000
Long-term Debt, Weighted Average Interest Rate, at Point in Time	1.48%
Long-term Debt, Weighted Average Interest Rate, over Time	0.97%

Other Borrowings - Junior Subor

Other Borrowings - Junior Subordinated Debt - (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Junior Subordinated Debt
Junior subordinated debt securities		$ 54,400,000
Discount		$ 213,000
Junior Subordinated Debt
Junior Subordinated Debt
Long-term Debt, Weighted Average Interest Rate, at Point in Time	3.26%	2.82%
Long-term Debt, Weighted Average Interest Rate, over Time	2.99%	2.59%
Junior Subordinated Debt net of discount
Junior Subordinated Debt
Long-term Debt, Weighted Average Interest Rate, over Time	3.94%	2.99%
Trusts | Junior Subordinated Debt
Junior Subordinated Debt
Junior subordinated debt securities	$ 114,500,000
Maximum allowed percentage of ownership interest to total Tier 1 capital	25.00%
SAVB Capital Trust I and II and FFCH Capital Trust I | Junior Subordinated Debt
Junior Subordinated Debt
Liability for the junior subordinated debt securities recorded on SAVB Capital Trust I and II	$ 114,500,000
Discount	4,100,000
Amount paid to holders, if the entity call backs the subordinated debt securities	$ 118,600,000
Discount amortization period	5 years

Other Borrowings - Lines of Cre

Other Borrowings - Lines of Credit - (Details) - USD ($)	Nov. 15, 2017	Dec. 31, 2017	Dec. 31, 2016
Principal maturities of other borrowings
2,018		$ 100,007,000
2,019		7,000
2,020		7,000
2,021		8,000
2,022		8,000
Thereafter		116,348,000
Total borrowings		216,385,000	$ 55,358,000
Unsecured line of credit
Other Borrowings
Maximum borrowing capacity	$ 10,000,000	0	$ 0
Junior Subordinated Debt
Principal maturities of other borrowings
Thereafter		114,500,000
Total borrowings		114,500,000
FHLB Advances
Principal maturities of other borrowings
2,018		100,000,000
Total borrowings		100,000,000
Other
Principal maturities of other borrowings
2,018		7,000
2,019		7,000
2,020		7,000
2,021		8,000
2,022		8,000
Thereafter		1,848,000
Total borrowings		$ 1,885,000
LIBOR | Unsecured line of credit
Other Borrowings
Spread on variable rate basis (as a percent)	1.75%

Income Taxes - Provision for in

Income Taxes - Provision for income taxes breakup - (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Provisional income tax expense	$ 26,600
Current:
Federal	46,153	$ 37,187	$ 41,527
State	3,018	3,325	2,327
Total current tax expense	49,171	40,512	43,854
Deferred:
Federal	31,971	11,684	6,344
State	109	564	704
Total deferred tax expense (benefit)	32,080	12,248	7,048
Provision for income taxes	$ 81,251	52,760	50,902
Federal statutory income tax rate (as a percent)	35.00%
Parent company
Deferred:
Provision for income taxes	$ (5,053)	$ (4,270)	$ (2,975)

Income Taxes - Provision for 98

Income Taxes - Provision for income taxes - (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Difference between the provision for income taxes and taxes computed by applying the federal statutory income tax rate to income before provision for income taxes
Income taxes at federal statutory rate	$ 59,082	$ 53,915	$ 52,631
Increase (reduction) of taxes resulting from:
State income taxes, net of federal tax benefit	2,032	2,527	1,970
Non- deductible merger expenses	586	686
Tax-exempt interest	(2,840)	(1,956)	(1,842)
Income tax credits	(1,951)	(2,068)	(1,781)
Dividends received deduction	(12)	(12)	(8)
DTA, Revaluation due to tax law change	26,558
Other, net	2,204	332	68
Provision for income taxes	81,251	52,760	50,902
Components of the net deferred tax asset
Allowance for loan losses	11,011	14,913
Other-than-temporary impairment on securities	257	295
Share-based compensation	3,935	3,915
Pension plan and post-retirement benefits	607	1,450
Deferred compensation	13,048	3,155
Purchase accounting adjustments	33,888	34,499
FDIC Acquisition	3,190
Other real estate owned	838	962
Tax deductible goodwill	32	682
Net operating loss carryforwards	14,066	14,645
Cash flow hedge	54	190
Unrealized losses on investment securities available for sale	3,472	1,053
Other	643	688
Total deferred tax assets	85,041	76,447
Gain on FDIC assisted transaction deferred for tax purposes		3,540
Depreciation	5,870	7,510
Intangible assets	14,745	11,239
Deferred loan fees	7,840	7,911
Prepaid expense	474	523
Mortgage servicing rights	6,818	10,380
Other	372	2,219
Total deferred tax liabilities	36,119	43,322
Net deferred tax assets before valuation allowance	48,922	33,125
Less, valuation allowance	(3,020)	(2,002)
Net deferred tax assets	45,902	31,123
Parent company
Increase (reduction) of taxes resulting from:
Provision for income taxes	$ (5,053)	$ (4,270)	$ (2,975)

Income Taxes - Additional infor

Income Taxes - Additional information - (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Income Taxes
Unrecognized tax benefits	$ 0
Accrued interest and penalties	0
Peoples
Income Taxes
Operating loss carryforwards	7.5
Annual limitation on operating loss carryforwards	1.5
Savannah Bancorp ("SAVB")
Income Taxes
Operating loss carryforwards	17
Annual limitation on operating loss carryforwards	2
Park Sterling Corporation
Income Taxes
Operating loss carryforwards	5.8
RBIL carryforwards	15
Annual limitations on RBIL carryforward	1.1
Annual limitation on operating loss carryforwards	3.3
Federal
Income Taxes
Operating loss carryforwards	30.3	$ 27.9
State
Income Taxes
Operating loss carryforwards	88.5	$ 72.1
Valuation allowance relating to operating loss carryforwards	$ 3

Other Expense (Details)

Other Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Other Expense
Business development and staff related	$ 7,449	$ 6,210	$ 6,642
Other loan expense	2,590	2,486	2,942
Director and shareholder expense	1,635	2,004	2,118
Armored carrier and courier expense	1,703	1,470	1,354
Property and sales tax	1,033	1,145	1,362
Other	9,310	8,016	7,031
Total other noninterest expense	$ 23,720	$ 21,331	$ 21,449

Earnings Per Common Share - Com

Earnings Per Common Share - Computation of basic and diluted EPS - (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Basic earnings per common share:
Net income	$ 87,554	$ 101,282	$ 99,473
Weighted Average Number of Shares Outstanding, Basic	29,686	23,998	23,966
Basic earnings per common share (in dollars per share)	$ 2.95	$ 4.22	$ 4.15
Diluted earnings per share:
Net income	$ 87,554	$ 101,282	$ 99,473
Weighted Average Number of Shares Outstanding, Basic	29,686	23,998	23,966
Effect of dilutive securities (in shares)	236	221	258
Weighted-average dilutive shares	29,922	24,219	24,224
Diluted earnings per common share (in dollars per share)	$ 2.93	$ 4.18	$ 4.11

Earnings Per Common Share - Cal

Earnings Per Common Share - Calculation of diluted EPS under Treasury method - (Details) - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Earnings Per Share
Number of shares	34,712	69,572	47,865
Range of exercise prices, low end of range (in dollars per share)	$ 69.48	$ 61.42	$ 61.42
Range of exercise prices, high end of range (in dollars per share)	$ 91.35	$ 69.48	$ 66.32

Accumulated Other Comprehens103

Accumulated Other Comprehensive Income (Loss) - Changes in components of AOCI - (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Accumulated Other Comprehensive Income (Loss)
Balance at the beginning of the period	$ (8,211)	$ (3,871)	$ (377)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(2,535)	(5,004)	(4,617)
Amounts reclassified from accumulated other comprehensive income (loss)	319	664	1,123
Other comprehensive income (loss), net of tax	(2,216)	(4,340)	(3,494)
Balance at the end of the period	(10,427)	(8,211)	(3,871)
Amortization of defined benefit pension
Accumulated Other Comprehensive Income (Loss)
Balance at the beginning of the period	(6,195)	(6,015)	(5,315)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(365)	(749)	(1,332)
Amounts reclassified from accumulated other comprehensive income (loss)	562	569	632
Other comprehensive income (loss), net of tax	197	(180)	(700)
Balance at the end of the period	(5,998)	(6,195)	(6,015)
Unrealized gains and losses on securities
Accumulated Other Comprehensive Income (Loss)
Balance at the beginning of the period	(1,708)	2,588	5,467
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(2,157)	(4,221)	(3,181)
Amounts reclassified from accumulated other comprehensive income (loss)	(413)	(75)	302
Other comprehensive income (loss), net of tax	(2,570)	(4,296)	(2,879)
Balance at the end of the period	(4,278)	(1,708)	2,588
Gains on sales of available for sale securities
Accumulated Other Comprehensive Income (Loss)
Balance at the beginning of the period	(308)	(444)	(529)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(13)	(34)	(104)
Amounts reclassified from accumulated other comprehensive income (loss)	170	170	189
Other comprehensive income (loss), net of tax	157	136	85
Balance at the end of the period	$ (151)	$ (308)	$ (444)

Accumulated Other Comprehens104

Accumulated Other Comprehensive Income (Loss) - Reclassifications out of AOCI - (Details) - USD ($)	3 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Reclassifications out of accumulated other comprehensive income, net of tax
Interest expense		$ (17,014,000)	$ (8,317,000)	$ (10,328,000)
Other noninterest income		6,670,000	6,437,000	5,298,000
Securities gains, net		1,421,000	122,000
Other-than-temporary impairment on securities	$ 753,000	753,000		489,000
Provision for income taxes		(81,251,000)	(52,760,000)	(50,902,000)
Net income		87,554,000	101,282,000	99,473,000
Amounts reclassified from accumulated other comprehensive income (loss)		(319,000)	(664,000)	(1,123,000)
Amount Reclassified from Accumulated Other Comprehensive Loss
Reclassifications out of accumulated other comprehensive income, net of tax
Net income		319,000	664,000	1,123,000
Gains on sales of available for sale securities
Reclassifications out of accumulated other comprehensive income, net of tax
Amounts reclassified from accumulated other comprehensive income (loss)		(170,000)	(170,000)	(189,000)
Gains on sales of available for sale securities | Amount Reclassified from Accumulated Other Comprehensive Loss | Interest rate contracts
Reclassifications out of accumulated other comprehensive income, net of tax
Interest expense		275,000	275,000	305,000
Provision for income taxes		(105,000)	(105,000)	(116,000)
Net income		170,000	170,000	189,000
Unrealized gains and losses on securities
Reclassifications out of accumulated other comprehensive income, net of tax
Amounts reclassified from accumulated other comprehensive income (loss)		413,000	75,000	(302,000)
Unrealized gains and losses on securities | Amount Reclassified from Accumulated Other Comprehensive Loss
Reclassifications out of accumulated other comprehensive income, net of tax
Securities gains, net		(1,421,000)	(122,000)
Provision for income taxes		542,000	47,000
Net income		(879,000)	(75,000)
Other-than-temporary impairment losses on available for sale securities | Amount Reclassified from Accumulated Other Comprehensive Loss
Reclassifications out of accumulated other comprehensive income, net of tax
Other-than-temporary impairment on securities		(753,000)		(489,000)
Provision for income taxes		(287,000)		(187,000)
Net income		466,000		302,000
Amortization of defined benefit pension
Reclassifications out of accumulated other comprehensive income, net of tax
Amounts reclassified from accumulated other comprehensive income (loss)		(562,000)	(569,000)	(632,000)
Amortization of defined benefit pension | Amount Reclassified from Accumulated Other Comprehensive Loss
Reclassifications out of accumulated other comprehensive income, net of tax
Salaries and employee benefits		908,000	920,000	1,021,000
Provision for income taxes		(346,000)	(351,000)	(389,000)
Net income		$ 562,000	$ 569,000	$ 632,000

Restrictions on Subsidiary D105

Restrictions on Subsidiary Dividends, Loans, or Advances (Details) - USD ($) $ in Millions	1 Months Ended
	Nov. 30, 2017	Dec. 31, 2017	Dec. 31, 2016	Jan. 31, 2015
Special dividend paid by the Bank to the entity	$ 25
Redemption amount of preferred stock				$ 46.3
Amount available for special dividend distribution without approval from SCBFI				$ 45
Maximum amount available for transfer in the form of loans or advances		$ 239.6	$ 116.2
Park Sterling Corporation
Repayments of senior debt	$ 30

Retirement Plans - Non-contribu

Retirement Plans - Non-contributory defined benefit pension plan - (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Amounts recognized in accumulated other comprehensive income excluding related income tax effects
Net loss	$ (9,200,000)	$ (9,500,000)
Components of net periodic pension cost and other amounts recognized in other comprehensive income
Net periodic pension benefit	351,000	205,000	$ 152,000
Total amount recognized in other comprehensive income	589,000	1,202,000	2,229,000
Other Comprehensive Income
Change in benefit obligation:
Service cost	127,000	112,000
Interest cost	1,124,000	1,132,000	1,017,000
Components of net periodic pension cost and other amounts recognized in other comprehensive income
Interest cost	(1,124,000)	(1,132,000)	(1,017,000)
Service cost	127,000	112,000
Expected return on plan assets	(2,213,000)	(2,131,000)	(2,067,000)
Recognized net actuarial loss	(751,000)	(816,000)	(898,000)
Net periodic pension benefit	211,000	71,000	152,000
Net (gain) loss	491,000	655,000	2,315,000
Amortization of loss	(751,000)	(816,000)	(898,000)
Total amount recognized in other comprehensive income	(260,000)	(161,000)	1,417,000
Total recognized in net periodic benefit cost and other comprehensive income	(471,000)	(232,000)	1,265,000
Non-contributory defined benefit pension plan
Change in benefit obligation:
Benefit obligation at beginning of year	28,800,000	28,260,000	28,002,000
Service cost	127,000	112,000
Interest cost	1,124,000	1,132,000	1,017,000
Actuarial (gain) loss	2,665,000	435,000	132,000
Benefits paid	(1,138,000)	(1,015,000)	(891,000)
Expenses	(78,000)	(124,000)
Benefit obligation at end of year	31,500,000	28,800,000	28,260,000
Change in plan assets:
Fair value of plan assets at beginning of year	28,216,000	27,444,000	28,451,000
Actual return on plan assets	4,387,000	1,911,000	(116,000)
Benefits paid	(1,138,000)	(1,015,000)	(891,000)
Expenses	(78,000)	(124,000)
Fair value of plan assets at end of year	31,387,000	28,216,000	27,444,000
Funded status	(113,000)	(584,000)	(816,000)
Components of net periodic pension cost and other amounts recognized in other comprehensive income
Interest cost	(1,124,000)	(1,132,000)	$ (1,017,000)
Service cost	127,000	112,000
Estimated net loss for the plan that will be amortized from other comprehensive income into periodic benefit cost over the next fiscal year
Estimated net loss for defined benefit pension plan that will be amortized from accumulated other comprehensive income into periodic benefit cost over the next fiscal year	775,000
Accumulated benefit obligation in excess of plan assets
Projected benefit obligation	31,500,000	28,800,000
Accumulated benefit obligation	31,500,000	28,800,000
Fair value of plan assets	$ 31,387,000	$ 28,216,000
Weighted-average assumptions used to determine the benefit obligation
Discount rate (as a percent)	3.50%	4.00%
Weighted-average assumptions used to determine net periodic pension cost
Discount rate (as a percent)	4.00%	4.10%	3.70%
Expected long-term return on plan assets (as a percent)	7.75%	7.75%	7.75%
Non-contributory defined benefit pension plan | Employees hired on or before December 31, 2005
Retirement Plans
Requisite age of employees for receiving retirement benefits under the plan	21 years
Requisite age of employees for receiving retirement benefits under the new benefit formula	1 year

Retirement Plans - Safe Harbor

Retirement Plans - Safe Harbor plan - (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Employees' savings plan
Matching contribution by the company (as a percent)	100.00%
Expenses recognized under 401(K) plan	$ 7,381	$ 6,178	$ 5,873
Minimum
Employees' savings plan
Age of employees to be eligible to participate in the defined contribution plan	18 years
Percentage of annual base compensation that participants may elect to contribute	1.00%
Maximum
Employees' savings plan
Percentage of annual base compensation that participants may elect to contribute	50.00%
Percentage of employees salary for which the company contributes a matching contribution	5.00%

Retirement Plans - Rate and sta

Retirement Plans - Rate and standard deviation assumptions - (Details) - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Fair value of pension plan assets
Purchases of shares of common stock	0	0	0
Pension:
Employee savings plan/ 401(K) plan	$ 7,381	$ 6,178	$ 5,873
Supplemental executive retirement plan	1,334	134	306
Post-retirement benefits	$ 251	$ 192	$ 212
Cash equivalents
Long-term rate of return and standard deviation assumptions used in developing long-term rate of return assumption for the pension plan
Rate of Return Assumption (as a percent)	3.00%
Standard Deviation Assumption (as a percent)	0.46%
High Grade Fixed Income
Long-term rate of return and standard deviation assumptions used in developing long-term rate of return assumption for the pension plan
Rate of Return Assumption (as a percent)	6.17%
Standard Deviation Assumption (as a percent)	3.42%
High Yield Fixed Income
Long-term rate of return and standard deviation assumptions used in developing long-term rate of return assumption for the pension plan
Rate of Return Assumption (as a percent)	8.37%
Standard Deviation Assumption (as a percent)	8.47%
International Fixed Income
Long-term rate of return and standard deviation assumptions used in developing long-term rate of return assumption for the pension plan
Rate of Return Assumption (as a percent)	6.53%
Standard Deviation Assumption (as a percent)	8.08%
Large Cap Equity
Long-term rate of return and standard deviation assumptions used in developing long-term rate of return assumption for the pension plan
Rate of Return Assumption (as a percent)	10.42%
Standard Deviation Assumption (as a percent)	13.26%
Mid Cap Equity
Long-term rate of return and standard deviation assumptions used in developing long-term rate of return assumption for the pension plan
Rate of Return Assumption (as a percent)	11.61%
Standard Deviation Assumption (as a percent)	15.75%
Mid/Small Cap Equity
Long-term rate of return and standard deviation assumptions used in developing long-term rate of return assumption for the pension plan
Rate of Return Assumption (as a percent)	10.46%
Standard Deviation Assumption (as a percent)	16.98%
Equity managers
Long-term rate of return and standard deviation assumptions used in developing long-term rate of return assumption for the pension plan
Rate of Return Assumption (as a percent)	7.57%
Standard Deviation Assumption (as a percent)	16.45%
Non-contributory defined benefit pension plan
Long-term rate of return and standard deviation assumptions used in developing long-term rate of return assumption for the pension plan
Rate of Return Assumption (as a percent)	7.75%	7.75%	7.75%
Fair value of pension plan assets
Fair value of pension plan assets	$ 31,387	$ 28,216	$ 27,444	$ 28,451
Estimated future benefit payments (including expected future service as appropriate)
2,018	1,318
2,019	1,382
2,020	1,522
2,021	1,604
2,022	1,637
2023-2027	8,722
Estimated future benefit payments	16,185
Pension:
Expenses incurred and charged against operations	8,615	$ 6,299	$ 6,239
Non-contributory defined benefit pension plan | Quoted Prices In Active Markets for Identical Assets (Level 1)
Fair value of pension plan assets
Fair value of pension plan assets	$ 31,387
Non-contributory defined benefit pension plan | Cash equivalents
Information about plan assets
Actual asset allocation (as a percent)	7.00%
Non-contributory defined benefit pension plan | Cash equivalents | Maximum
Information about plan assets
Allowable allocation percentages	35.00%
Non-contributory defined benefit pension plan | Cash equivalents | Minimum
Information about plan assets
Allowable allocation percentages	0.00%
Non-contributory defined benefit pension plan | Foreign equities
Fair value of pension plan assets
Fair value of pension plan assets	$ 3,743
Non-contributory defined benefit pension plan | Foreign equities | Quoted Prices In Active Markets for Identical Assets (Level 1)
Fair value of pension plan assets
Fair value of pension plan assets	$ 3,743
Non-contributory defined benefit pension plan | Equity managers
Information about plan assets
Actual asset allocation (as a percent)	64.00%
Non-contributory defined benefit pension plan | Equity managers | Maximum
Information about plan assets
Allowable allocation percentages	65.00%
Non-contributory defined benefit pension plan | Equity managers | Minimum
Information about plan assets
Allowable allocation percentages	55.00%
Non-contributory defined benefit pension plan | Fixed income
Information about plan assets
Actual asset allocation (as a percent)	29.00%
Non-contributory defined benefit pension plan | Fixed income | Maximum
Information about plan assets
Allowable allocation percentages	40.00%
Non-contributory defined benefit pension plan | Fixed income | Minimum
Information about plan assets
Allowable allocation percentages	20.00%
Non-contributory defined benefit pension plan | Money market funds
Fair value of pension plan assets
Fair value of pension plan assets	$ 2,146
Non-contributory defined benefit pension plan | Money market funds | Quoted Prices In Active Markets for Identical Assets (Level 1)
Fair value of pension plan assets
Fair value of pension plan assets	2,146
Non-contributory defined benefit pension plan | Cash and cash equivalents
Fair value of pension plan assets
Fair value of pension plan assets	18
Non-contributory defined benefit pension plan | Cash and cash equivalents | Quoted Prices In Active Markets for Identical Assets (Level 1)
Fair value of pension plan assets
Fair value of pension plan assets	18
Non-contributory defined benefit pension plan | Broad market fixed income
Fair value of pension plan assets
Fair value of pension plan assets	9,041
Non-contributory defined benefit pension plan | Broad market fixed income | Quoted Prices In Active Markets for Identical Assets (Level 1)
Fair value of pension plan assets
Fair value of pension plan assets	9,041
Non-contributory defined benefit pension plan | U.S. equities
Fair value of pension plan assets
Fair value of pension plan assets	16,439
Non-contributory defined benefit pension plan | U.S. equities | Quoted Prices In Active Markets for Identical Assets (Level 1)
Fair value of pension plan assets
Fair value of pension plan assets	$ 16,439

Post-Retirement Benefits (Detai

Post-Retirement Benefits (Details)	12 Months Ended
	Dec. 31, 2017USD ($)item	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)
Post-Retirement Benefits
Number of post-retirement health and life insurance benefit plans | item	2
Components of net periodic pension cost and other amounts recognized in other comprehensive income
Net periodic pension expense	$ (351,000)	$ (205,000)	$ (152,000)
Total amount recognized in other comprehensive income	589,000	1,202,000	2,229,000
Effects of one-percentage point change in assumed health care cost trend rates
One-Percentage Point Increase, Effect on aggregate service and interest cost	6,000
One-Percentage Point Decrease, Effect on aggregate service and interest cost	(6,000)
One-Percentage Point Increase, Effect on postretirement benefit obligation	166
One-Percentage Point Decrease, Effect on postretirement benefit obligation	(150)
Other Comprehensive Income
Change in benefit obligation:
Interest cost	1,124,000	1,132,000	1,017,000
Components of net periodic pension cost and other amounts recognized in other comprehensive income
Interest cost	1,124,000	1,132,000	1,017,000
Recognized net actuarial loss	751,000	816,000	898,000
Net periodic pension expense	(211,000)	(71,000)	(152,000)
Net (gain) loss	491,000	655,000	2,315,000
Amortization of loss	(751,000)	(816,000)	(898,000)
Total amount recognized in other comprehensive income	(260,000)	(161,000)	1,417,000
Total recognized in net periodic benefit cost and other comprehensive income	(471,000)	(232,000)	1,265,000
Retiree Medical Plan
Change in benefit obligation:
Benefit obligation at beginning of year	393,000	422,000	436,000
Interest cost	13,000	13,000	12,000
Actuarial (gain) loss	(29,000)	1,000	19,000
Benefits paid	(40,000)	(43,000)	(45,000)
Benefit obligation at end of year	337,000	393,000	422,000
Change in plan assets:
Employer contribution	40,000	43,000	45,000
Benefits paid	(40,000)	(43,000)	(45,000)
Funded status	$ (337,000)	$ (393,000)	$ (422,000)
Weighted-average assumptions used to determine the benefit obligation
Discount rate (as a percent)	3.20%	3.50%	3.30%
Weighted-average assumptions used to determine net periodic pension cost
Discount rate (as a percent)	3.50%	3.30%	3.00%
Assumed health care cost trend rates
Health care cost trend rate assumed for next fiscal year (as a percent)	5.00%	5.00%	5.00%
Components of net periodic pension cost and other amounts recognized in other comprehensive income
Interest cost	$ 13,000	$ 13,000	$ 12,000
Recognized net actuarial loss	10,000	10,000	9,000
Net periodic pension expense	23,000	23,000	21,000
Net (gain) loss	(29,000)	1,000	19,000
Amortization of loss	(10,000)	(10,000)	(9,000)
Total amount recognized in other comprehensive income	(39,000)	(9,000)	10,000
Total recognized in net periodic benefit cost and other comprehensive income	(16,000)	14,000	31,000
Estimated net loss for the retiree medical plan that will be amortized from other comprehensive income into periodic benefit cost over the next fiscal year
Estimated net loss for the plan that will be amortized from other comprehensive income into periodic benefit cost over the next fiscal year	6,000,000
Effects of one-percentage point change in assumed health care cost trend rates
One-Percentage Point Increase, Effect on aggregate service and interest cost	1,000
One-Percentage Point Decrease, Effect on aggregate service and interest cost	(1,000)
One-Percentage Point Increase, Effect on postretirement benefit obligation	19,000
One-Percentage Point Decrease, Effect on postretirement benefit obligation	(17,000)
Estimated future benefit payments (including expected future service as appropriate)
2,018	38,000
2,019	37,000
2,020	36,000
2,021	34,000
2,022	33,000
2023-2027	131,000
Estimated future benefit payments	309,000
Expected contributions in the next fiscal year
Amount of expected contributions in the next fiscal year	38,000
Retiree Welfare Plan
Change in benefit obligation:
Benefit obligation at beginning of year	2,447,000	2,092,000	2,331,000
Interest cost	81,000	74,000	77,000
Actuarial (gain) loss	126,000	546,000	(105,000)
less: federal subsidy on benefits paid	12,000	15,000	22,000
Benefit obligation at end of year	2,392,000	2,447,000	2,092,000
Change in plan assets:
Employer contribution	274,000	280,000	233,000
Benefits paid	(274,000)	(280,000)	(233,000)
Funded status	$ (2,392,000)	$ (2,447,000)	$ (2,092,000)
Weighted-average assumptions used to determine the benefit obligation
Discount rate (as a percent)	3.20%	3.50%	3.70%
Weighted-average assumptions used to determine net periodic pension cost
Discount rate (as a percent)	3.50%	3.70%	3.45%
Assumed health care cost trend rates
Health care cost trend rate assumed for next fiscal year (as a percent)	5.00%	5.00%	6.25%
Components of net periodic pension cost and other amounts recognized in other comprehensive income
Interest cost	$ 81,000	$ 74,000	$ 77,000
Estimated net loss for the retiree medical plan that will be amortized from other comprehensive income into periodic benefit cost over the next fiscal year
Estimated net loss for the plan that will be amortized from other comprehensive income into periodic benefit cost over the next fiscal year	154,000
Estimated future benefit payments (including expected future service as appropriate)
2,018	241,000
2,019	236,000
2,020	230,000
2,021	222,000
2,022	213,000
2023-2027	894,000
Estimated future benefit payments	2,036,000
Expected contributions in the next fiscal year
Amount of expected contributions in the next fiscal year	241,000
Retiree Welfare Plan | Other Comprehensive Income
Change in benefit obligation:
Interest cost	81,000	74,000	77,000
Components of net periodic pension cost and other amounts recognized in other comprehensive income
Interest cost	81,000	74,000	77,000
Recognized net actuarial loss	147,000	95,000	115,000
Net periodic pension expense	228,000	169,000	192,000
Net (gain) loss	126,000	546,000	(106,000)
Amortization of loss	(147,000)	(95,000)	(115,000)
Total amount recognized in other comprehensive income	(21,000)	451,000	(221,000)
Total recognized in net periodic benefit cost and other comprehensive income	$ 207,000	$ 620,000	$ (29,000)

Share-Based Compensation - Stoc

Share-Based Compensation - Stock Options - (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended			59 Months Ended	168 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2017
Number of shares
Exercisable at the end of the period (in shares)		185,758		185,758
Stock Options
Number of shares
Outstanding at the beginning of the period (in shares)	246,535	285,405	294,342
Granted (in shares)	33,634	25,682	26,430
Exercised (in shares)	(59,480)	(63,527)	(35,360)
Forfeited (in shares)	(2,000)	(1,025)
Expired (in shares)			(7)
Outstanding at the end of the period (in shares)	218,689	246,535	285,405	246,535	218,689
Exercisable at the end of the period (in shares)	148,702		227,130		148,702
Weighted-Average Exercise Price
Outstanding at the beginning of the period (in dollars per share)	$ 42.53	$ 38.85	$ 35.91
Granted (in dollars per share)	91.23	63.79	61.74
Exercised (in dollars per share)	33.03	34.70	31.51
Forfeited (in dollars per share)	26.01	35.20
Expired (in dollars per share)			31.72
Outstanding at the end of the period (in dollars per share)	52.75	42.53	38.85	$ 42.53	$ 52.75
Exercisable at the end of the period (in dollars per share)	41.62	36.33	34.48	$ 36.33	$ 41.62
Weighted-average fair value of options granted during the year (in dollars per share)	$ 35.42	$ 25.19	$ 25.08
Aggregate Intrinsic Value
Outstanding at the end of the period	$ 7.7	$ 11.1	$ 9.4	$ 11.1	$ 7.7
Exercisable at the end of the period	6.8	9.5	8.5	$ 9.5	$ 6.8
Exercised at the end of the period	$ 3.3	$ 2.5	$ 1.3
Incentive stock options
Share-Based Compensation
Expiration period	10 years
Incentive stock options | Maximum
Share-Based Compensation
Vesting period	4 years
2012 plan
Share-Based Compensation
Number of shares registered under the 2012 plan	1,684,000				1,684,000
2012 plan | Restricted Stock. | Maximum
Share-Based Compensation
Number of shares registered under the 2012 plan	817,476				817,476
1999, 2004 and 2012 Plans | Incentive stock options
Share-Based Compensation
Vesting percentage	25.00%
1999 plan
Share-Based Compensation
Options granted (in shares)					0
2004 plan
Share-Based Compensation
Options granted (in shares)				0

Share-Based Compensation - Info

Share-Based Compensation - Information pertaining to options oustanding - (Details) - $ / shares	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Share Based Compensation
Range of exercise prices, low end of range (in dollars per share)	$ 69.48	$ 61.42	$ 61.42
Range of exercise prices, high end of range (in dollars per share)	$ 91.35	$ 69.48	$ 66.32
Options Outstanding
Number outstanding (in shares)	218,689
Weighted Average Remaining Contractual Life	5 years 4 months 24 days
Weighted Average Exercise Price (in dollars per share)	$ 52.75
Options Exercisable
Number outstanding (in shares)	148,702
Weighted Average Exercise Price (in dollars per share)	$ 41.62
Weighted Average Remaining Contractual Life	4 years 1 month 6 days
Restricted Stock.
Vesting schedule of shares
2,017	37,713
2,018	34,337
2,019	51,940
2,020	3,905
2,021	3,405
Thereafter	11,392
$26.01 - $ 30.00
Share Based Compensation
Range of exercise prices, low end of range (in dollars per share)	$ 26.01
Range of exercise prices, high end of range (in dollars per share)	$ 30
Options Outstanding
Number outstanding (in shares)	15,796
Weighted Average Remaining Contractual Life	1 year 4 months 24 days
Weighted Average Exercise Price (in dollars per share)	$ 27.60
Options Exercisable
Number outstanding (in shares)	15,795
Weighted Average Exercise Price (in dollars per share)	$ 27.60
$30.01 - $35.00
Share Based Compensation
Range of exercise prices, low end of range (in dollars per share)	30.01
Range of exercise prices, high end of range (in dollars per share)	$ 35
Options Outstanding
Number outstanding (in shares)	58,790
Weighted Average Remaining Contractual Life	3 years 2 months 12 days
Weighted Average Exercise Price (in dollars per share)	$ 31.82
Options Exercisable
Number outstanding (in shares)	58,787
Weighted Average Exercise Price (in dollars per share)	$ 31.82
$35.01 - $40.00
Share Based Compensation
Range of exercise prices, low end of range (in dollars per share)	35.01
Range of exercise prices, high end of range (in dollars per share)	$ 40
Options Outstanding
Number outstanding (in shares)	11,353
Weighted Average Remaining Contractual Life	2 years 1 month 6 days
Weighted Average Exercise Price (in dollars per share)	$ 35.20
Options Exercisable
Number outstanding (in shares)	11,351
Weighted Average Exercise Price (in dollars per share)	$ 35.20
$40.01 - $45.00
Share Based Compensation
Range of exercise prices, low end of range (in dollars per share)	40.01
Range of exercise prices, high end of range (in dollars per share)	$ 45
Options Outstanding
Number outstanding (in shares)	24,507
Weighted Average Remaining Contractual Life	4 years 10 months 24 days
Weighted Average Exercise Price (in dollars per share)	$ 41.42
Options Exercisable
Number outstanding (in shares)	24,507
Weighted Average Exercise Price (in dollars per share)	$ 41.42
$45.01 - $69.48
Share Based Compensation
Range of exercise prices, low end of range (in dollars per share)	45.01
Range of exercise prices, high end of range (in dollars per share)	$ 91.35
Options Outstanding
Number outstanding (in shares)	108,243
Weighted Average Remaining Contractual Life	7 years 8 months 12 days
Weighted Average Exercise Price (in dollars per share)	$ 72.19
Options Exercisable
Number outstanding (in shares)	38,262
Weighted Average Exercise Price (in dollars per share)	$ 64.50

Share-Based Compensation - Weig

Share-Based Compensation - Weighted average assumptions used in valuing options - (Details)	12 Months Ended			90 Months Ended
	Dec. 31, 2017USD ($)$ / sharesshares	Dec. 31, 2016USD ($)$ / sharesshares	Dec. 31, 2015USD ($)$ / sharesshares	Jun. 30, 2009
Weighted-average assumptions
Dividend yield (as a percent)			1.40%
Expected life			8 years 6 months
Expected volatility (as a percent)			40.90%
Risk-free interest rate (as a percent)			1.79%
Employee Stock Purchase Plan
Additional disclosures
Compensation expense | $	$ 43,000	$ 48,000	$ 48,000
Employee Stock Purchase Plan
Number of shares of common stock registered in connection with the establishment of an Employee Stock Purchase Plan	363,825
Requisite age of employees to be eligible to participate in the plan	21 years
Requisite service period to be eligible to participate in the plan	6 months
Discount rate for eligible employees to purchase company stock (as a percent)	5.00%			15.00%
Minimum | Employee Stock Purchase Plan
Employee Stock Purchase Plan
Shares available for issuance under the plan	89,000
Maximum | Employee Stock Purchase Plan
Employee Stock Purchase Plan
Estimated subscription date fair value (as a percent)	95.00%
Stock Options
Weighted-average assumptions
Dividend yield (as a percent)	1.40%	1.60%
Expected life	8 years 6 months	8 years 6 months
Risk-free interest rate (as a percent)	2.43%	1.90%
Additional disclosures
Total unrecognized compensation cost related to non vested stock option grants | $	$ 1,400,000
Weighted-average period over which unrecognized compensation cost is expected to be recognized	1 year 1 month 17 days
Total fair value of shares vested during the period | $	$ 578,000	$ 455,000	386,000
Compensation expense | $	$ 784,000	$ 545,000	483,000
Stock Options | Minimum
Weighted-average assumptions
Expected volatility (as a percent)	37.20%	40.60%
Restricted Stock.
Additional disclosures
Weighted-average period over which unrecognized compensation cost is expected to be recognized	2 years 29 days
Compensation expense | $	$ 2,500,000	$ 2,700,000	$ 2,500,000
Restricted Stock Activity and RSUs
Nonvested at the beginning of the period (in shares)	183,014
Granted (in shares)	26,053	44,301	45,605
Vested (in shares)	(61,950)
Forfeited (in shares)	(4,425)
Nonvested at the end of the period (in shares)	142,692	183,014
Weighted-Average Grant-Date Fair Value
Nonvested at the beginning of the period (in dollars per share) | $ / shares	$ 51.88
Granted (in dollars per share) | $ / shares	89.11	$ 67.51	$ 70.86
Vested (in dollars per share) | $ / shares	47.94
Forfeited (in dollars per share) | $ / shares	75.59
Nonvested at the end of the period (in dollars per share) | $ / shares	$ 59.66	$ 51.88
Additional disclosures
Total unrecognized compensation cost related to nonvested restricted stock and RSUs granted | $	$ 4,500,000
Total fair value of shares vested during the period | $	$ 3,100,000	$ 3,200,000	$ 2,100,000
Restricted Stock. | Employees | Minimum
Additional disclosures
Vesting period	4 years
Restricted Stock. | Non-employee directors | Maximum
Additional disclosures
Vesting period	12 years
Restricted Stock Units
Additional disclosures
Weighted-average period over which unrecognized compensation cost is expected to be recognized	2 years 1 month 2 days
Compensation expense | $	$ 3,600,000	$ 2,900,000	$ 2,800,000
Restricted Stock Activity and RSUs
Nonvested at the beginning of the period (in shares)	107,876
Granted (in shares)	77,301	68,842	39,672
Vested (in shares)	(39,672)
Forfeited (in shares)	(1,518)
LTIP Adjustment (in shares)	3,951
Nonvested at the end of the period (in shares)	140,036	107,876
Weighted-Average Grant-Date Fair Value
Nonvested at the beginning of the period (in dollars per share) | $ / shares	$ 66.37
Granted (in dollars per share) | $ / shares	89.43
Vested (in dollars per share) | $ / shares	68.31
Forfeited (in dollars per share) | $ / shares	$ 78.68
LTIP adjustment (in dollars per share) | $ / shares	63.93
Nonvested at the end of the period (in dollars per share) | $ / shares	$ 78.49	$ 66.37
Additional disclosures
Total unrecognized compensation cost related to nonvested restricted stock and RSUs granted | $	$ 5,700,000
Total fair value of shares vested during the period | $	$ 5,000,000	$ 4,300,000	$ 1,900,000
Target RSU award level (as a percent)	97.10%

Stock Repurchase Program (Detai

Stock Repurchase Program (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Mar. 31, 2017	Feb. 29, 2004
Stock repurchase program
Stock Repurchased During Period, Shares			60,000
Stock Repurchased During Period, Value			$ 4.3
Announced stock repurchase program
Stock repurchase program
Shares authorized under repurchase program					250,000
Stock Repurchased During Period, Shares	0	32,900
Stock Repurchased During Period, Value		$ 2.1
Other stock repurchase arrangements
Stock repurchase program
Stock Repurchased During Period, Shares	61,125	55,537	21,046
Stock Repurchased During Period, Value	$ 5.5	$ 3.9	$ 1.4
2004 plan
Stock repurchase program
Shares authorized under repurchase program				1,000,000

Lease Commitments (Details)

Lease Commitments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Future minimum lease payments
2,018	$ 6,301
2,019	5,621
2,020	5,164
2,021	4,924
2,022	4,447
Thereafter	18,508
Total future minimum payments due	44,965
Total lease expense	$ 6,200	$ 5,700	$ 6,600

Contingent Liabilities (Details

Contingent Liabilities (Details)	Dec. 31, 2017item
Contingent Liabilities
Number of pending or threatened litigation	0

Related Party Transactions (Det

Related Party Transactions (Details) - Directors and executive officers, their immediate families and their business interests - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Related Party Transactions
Additional loans made	$ 3.7
Loans reduced	31
South State Bank (the Bank)
Related Party Transactions
Loans outstanding	7.8	$ 35.4
Additional loans made	14.2
Repayments received	14.5
Related party deposits	$ 20.8	$ 19.3

Financial Instruments with O117

Financial Instruments with Off-Balance Sheet Risk (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Standby letters of credit
Financial instruments, whose contract amounts represent credit risk
Expiration period of standby letters of credit	1 year
South State Bank (the Bank)
Financial instruments, whose contract amounts represent credit risk
Off balance sheet financial instruments	$ 2,935,657	$ 1,687,027
South State Bank (the Bank) | Commitments to extend credit
Financial instruments, whose contract amounts represent credit risk
Off balance sheet financial instruments	2,905,213	1,670,097
South State Bank (the Bank) | Standby letters of credit and financial guarantees
Financial instruments, whose contract amounts represent credit risk
Off balance sheet financial instruments	$ 30,444	$ 16,930

Fair Value - Assets and liabili

Fair Value - Assets and liabilities measured at fair value on a recurring basis - (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Assets
Securities available for sale	$ 1,650,710	$ 999,405
Government-sponsored entities debt
Assets
Securities available for sale	85,509	84,642
State and municipal obligations
Assets
Securities available for sale	220,437	107,402
Common Stock
Assets
Securities available for sale	4,077	3,784
Parent company
Assets
Securities available for sale		631
Recurring basis
Assets
Derivative financial instruments	3,306	2,606
Loans held for sale	70,890	50,572
Securities available for sale	1,650,710	999,405
Mortgage servicing rights	31,119	29,037
Fair value of Assets, Total	1,756,025	1,081,620
Liabilities
Derivative financial instruments	3,248	730
Changes in fair value of assets
Transfers between the fair value hierarchy levels	0	0
Recurring basis | Government-sponsored entities debt
Assets
Securities available for sale	85,509	84,642
Recurring basis | State and municipal obligations
Assets
Securities available for sale	220,437	107,402
Recurring basis | Mortgage-backed securities
Assets
Securities available for sale	1,340,687	803,577
Recurring basis | Common Stock
Assets
Securities available for sale	4,077	3,784
Recurring basis | Quoted Prices In Active Markets for Identical Assets (Level 1)
Assets
Securities available for sale		2,559
Fair value of Assets, Total		2,559
Recurring basis | Quoted Prices In Active Markets for Identical Assets (Level 1) | Common Stock
Assets
Securities available for sale		2,559
Recurring basis | Significant Other Observable Inputs (Level 2)
Assets
Derivative financial instruments	3,306	2,606
Loans held for sale	70,890	50,572
Securities available for sale	1,650,710	996,846
Fair value of Assets, Total	1,724,906	1,050,024
Liabilities
Derivative financial instruments	3,248	730
Recurring basis | Significant Other Observable Inputs (Level 2) | Government-sponsored entities debt
Assets
Securities available for sale	85,509	84,642
Recurring basis | Significant Other Observable Inputs (Level 2) | State and municipal obligations
Assets
Securities available for sale	220,437	107,402
Recurring basis | Significant Other Observable Inputs (Level 2) | Mortgage-backed securities
Assets
Securities available for sale	1,340,687	803,577
Recurring basis | Significant Other Observable Inputs (Level 2) | Common Stock
Assets
Securities available for sale	4,077	1,225
Recurring basis | Significant Unobservable Inputs (Level 3)
Assets
Mortgage servicing rights	31,119	29,037
Fair value of Assets, Total	31,119	29,037
Changes in fair value of assets
Fair value of assets at the beginning of the period	29,037	26,202
Servicing assets that resulted from transfers of financial assets	6,439	6,428
Changes in fair value assets due to valuation inputs or assumptions	(595)	560
Changes in fair value assets due to increased principal paydowns	3,762	4,153
Fair value of assets at the end of the period	31,119	29,037
Unrealized losses included in accumulated other comprehensive income related to Level 3 financial assets and liabilities	$ 0	$ 0

Fair Value - Assets and liab119

Fair Value - Assets and liabilities measured at fair value on a nonrecurring basis - (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Jun. 23, 2016	Dec. 31, 2015	Dec. 31, 2014
Fair Value
Other Real Estate	$ 11,203	$ 18,316	$ 3,000	$ 30,554	$ 42,726
OREO | Fair Value.
Fair Value
Other Real Estate		18,316
Non-acquired Credit Impaired loans | Fair Value.
Fair Value
Other Real Estate		6,611
Significant Unobservable Inputs (Level 3) | OREO
Fair Value
Other Real Estate		18,316
Significant Unobservable Inputs (Level 3) | Non-acquired Credit Impaired loans
Fair Value
Other Real Estate		$ 6,611
Nonrecurring basis | OREO | Fair Value.
Fair Value
Other Real Estate	11,203
Nonrecurring basis | Non-acquired Credit Impaired loans | Fair Value.
Fair Value
Other Real Estate	10,495
Nonrecurring basis | Significant Unobservable Inputs (Level 3) | OREO
Fair Value
Other Real Estate	11,203
Nonrecurring basis | Significant Unobservable Inputs (Level 3) | Non-acquired Credit Impaired loans
Fair Value
Other Real Estate	$ 10,495
Nonrecurring basis | Significant Unobservable Inputs (Level 3) | Discounted appraisals | Impaired loans
Quantitative Information about Level 3 Fair Value Measurements
Collateral discounts (as a percent)	3.00%	6.00%
Nonrecurring basis | Significant Unobservable Inputs (Level 3) | Discounted appraisals | OREO
Quantitative Information about Level 3 Fair Value Measurements
Collateral discounts and estimated costs to sell (as a percent)	21.00%	18.00%

Fair Value - Estimated fair val

Fair Value - Estimated fair value and related carrying amount, of the Company’s financial instruments - (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Financial assets:
Loans held for sale	$ 70,890	$ 50,572
Financial liabilities:
Federal Funds Purchased and Securities Sold under Agreements to Repurchase.	286,857	313,773
Increase (Decrease) in Loans Held-for-sale	636,836	690,495	$ 318,936
Other borrowings	216,385	55,358
Carrying Amount
Financial assets:
Cash and cash equivalents	377,627	374,448
Investment securities	1,673,769	1,014,981
Loans held for sale	70,890	50,572
Loans, net of allowance for loan losses	10,575,417	6,643,326
Accrued interest receivable	32,727	18,618
Mortgage servicing rights	31,119	29,037
Interest rate swap - non-designated hedge	2,367	203
Other derivative financial instruments (Mortgage - banking related)	939	2,403
Financial liabilities:
Deposits	11,532,766	7,334,423
Federal funds purchased and securities sold under agreements to repurchase	286,857	313,773
Other borrowings	216,385	55,358
Accrued interest payable	2,789	1,359
Interest rate swap - non-designated hedge	2,750	181
Interest rate swap - cash flow hedge	246	498
Other derivative financial instruments (Mortgage banking related)	252	51
Fair Value.
Financial assets:
Cash and cash equivalents	377,627	374,448
Investment securities	1,673,796	1,015,137
Loans held for sale	70,890	50,572
Loans, net of allowance for loan losses	10,724,264	6,649,575
Accrued interest receivable	32,727	18,618
Mortgage servicing rights	31,119	29,037
Interest rate swap - non-designated hedge	2,367	203
Other derivative financial instruments (Mortgage - banking related)	939	2,403
Financial liabilities:
Deposits	10,796,380	6,935,867
Federal funds purchased and securities sold under agreements to repurchase	286,857	313,773
Other borrowings	219,421	54,379
Accrued interest payable	2,789	1,359
Interest rate swap - non-designated hedge	2,750	181
Interest rate swap - cash flow hedge	246	498
Other derivative financial instruments (Mortgage banking related)	252	51
Commitments to extend credit | Fair Value.
Financial liabilities:
Commitments to extend credit	41,319	1,587
Quoted Prices In Active Markets for Identical Assets (Level 1) | Fair Value.
Financial assets:
Cash and cash equivalents	377,627	374,448
Investment securities	20,530	12,041
Significant Other Observable Inputs (Level 2) | Fair Value.
Financial assets:
Investment securities	1,653,266	1,003,096
Loans held for sale	70,890	50,572
Accrued interest receivable	7,051	3,642
Interest rate swap - non-designated hedge	2,367	203
Other derivative financial instruments (Mortgage - banking related)	939	2,403
Financial liabilities:
Deposits	10,796,380	6,935,867
Federal funds purchased and securities sold under agreements to repurchase	286,857	313,773
Other borrowings	219,421	54,379
Accrued interest payable	2,789	1,359
Interest rate swap - non-designated hedge	2,750	181
Interest rate swap - cash flow hedge	246	498
Other derivative financial instruments (Mortgage banking related)	252	51
Significant Other Observable Inputs (Level 2) | Commitments to extend credit | Fair Value.
Financial liabilities:
Commitments to extend credit	41,319	1,587
Significant Unobservable Inputs (Level 3) | Fair Value.
Financial assets:
Loans, net of allowance for loan losses	10,724,264	6,649,575
Accrued interest receivable	25,676	14,976
Mortgage servicing rights	31,119	29,037
Recurring basis
Financial assets:
Loans held for sale	70,890	50,572
Mortgage servicing rights	31,119	29,037
Recurring basis | Significant Other Observable Inputs (Level 2)
Financial assets:
Loans held for sale	70,890	50,572
Recurring basis | Significant Unobservable Inputs (Level 3)
Financial assets:
Mortgage servicing rights	$ 31,119	$ 29,037

Regulatory Matters (Details)

Regulatory Matters (Details) $ in Thousands	Dec. 31, 2017USD ($)	Dec. 31, 2016USD ($)
Capital ratios
Actual. Capital Amount	$ 1,273,547	$ 788,544
Actual, Ratio (as a percent)	11.59%	11.66%
Tier One Common Equity Capital Required to be Well Capitalized	$ 714,221	$ 439,755
Tier One Common Equity Capital Required to be Well Capitalized to Risk Weighted Assets (as a percent)	6.50	6.50
Tier One Risk Based Capital to Risk Weighted Assets [Abstract]
Actual, Capital Amount	$ 1,384,433	$ 841,266
Actual, Ratio (as a percent)	12.60%	12.43%
Leverage ratio (as a percent)	10.36%	9.88%
Tier One Risk Based Capital Required to be Well Capitalized	$ 879,042	$ 541,237
Tier One Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets (as a percent)	8.00%	8.00%
Total capital to risk-weighted assets
Actual, Capital Amount	$ 1,432,843	$ 881,957
Capital to Risk Weighted Assets (as a percent)	13.04%	13.04%
Required to be considered well capitalized, Capital Amount	$ 1,098,802	$ 676,546
Required to be considered well capitalized, Ratio (as a percent)	10.00%	10.00%
Tier One Leverage Capital to Average Assets [Abstract]
Tier One Leverage Capital	$ 1,384,433	$ 841,266
Tier One Leverage Capital to Average Assets (as a percent)	10.36%	9.88%
Tier One Leverage Capital Required to be Well Capitalized	$ 668,075	$ 425,765
Tier One Leverage Capital Required to be Well Capitalized to Average Assets (as a percent)	5.00%	5.00%
Minimum
Tier One Risk Based Capital to Risk Weighted Assets [Abstract]
Actual, Ratio (as a percent)	4.50%
Leverage ratio (as a percent)	4.00%
Tier 1 capital to risk-weighted assets (as a percent)	6.00%	4.00%
Total capital to risk-weighted assets
Capital to Risk Weighted Assets (as a percent)	8.00%
Tier One Leverage Capital to Average Assets [Abstract]
Tier One Leverage Capital to Average Assets (as a percent)	4.00%
Phased In Member
Capital ratios
Tier One Risk Based Capital Required for Capital Adequacy	$ 631,811	$ 346,730
Tier 1 common equity capital to risk-weighted assets (as a percent)	5.750	5.125
Tier One Risk Based Capital to Risk Weighted Assets [Abstract]
Leverage ratio (as a percent)		6.625%
Tier One Risk Based Capital Required for Capital Adequacy	$ 796,632	$ 448,212
Tier 1 capital to risk-weighted assets (as a percent)	7.25%
Total capital to risk-weighted assets
Minimum capital required, Capital Amount	$ 1,016,392	$ 583,521
Minimum capital required, Ratio (as a percent)	9.25%	8.625%
Tier One Leverage Capital to Average Assets [Abstract]
Tier One Leverage Capital to Average Assets (as a percent)		6.625%
Tier One Leverage Capital Required for Capital Adequacy	$ 534,460	$ 340,612
Minimum capital required, Ratio (as a percent)	4.00%	4.00%
Fully Phased Member
Capital ratios
Tier One Risk Based Capital Required for Capital Adequacy	$ 769,162	$ 473,582
Tier 1 common equity capital to risk-weighted assets (as a percent)	7	7
Tier One Risk Based Capital to Risk Weighted Assets [Abstract]
Tier One Risk Based Capital Required for Capital Adequacy	$ 933,982	$ 575,064
Tier 1 capital to risk-weighted assets (as a percent)	8.50%	8.50%
Total capital to risk-weighted assets
Minimum capital required, Capital Amount	$ 1,153,742	$ 710,374
Minimum capital required, Ratio (as a percent)	10.50%	10.50%
Tier One Leverage Capital to Average Assets [Abstract]
Tier One Leverage Capital Required for Capital Adequacy	$ 534,460	$ 340,612
Minimum capital required, Ratio (as a percent)	4.00%	4.00%
South State Bank (the Bank)
Capital ratios
Actual. Capital Amount	$ 1,360,603	$ 815,823
Actual, Ratio (as a percent)	12.38%	12.06%
Tier One Common Equity Capital Required to be Well Capitalized	$ 714,143	$ 439,627
Tier One Common Equity Capital Required to be Well Capitalized to Risk Weighted Assets (as a percent)	6.50	6.50
Tier One Risk Based Capital to Risk Weighted Assets [Abstract]
Actual, Capital Amount	$ 1,360,603	$ 815,823
Actual, Ratio (as a percent)	12.38%	12.06%
Leverage ratio (as a percent)	10.18%	9.58%
Tier One Risk Based Capital Required to be Well Capitalized	$ 878,945	$ 541,079
Tier One Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets (as a percent)	8.00%	8.00%
Total capital to risk-weighted assets
Actual, Capital Amount	$ 1,409,014	$ 856,388
Capital to Risk Weighted Assets (as a percent)	12.82%	12.66%
Required to be considered well capitalized, Capital Amount	$ 1,098,681	$ 676,349
Required to be considered well capitalized, Ratio (as a percent)	10.00%	10.00%
Tier One Leverage Capital to Average Assets [Abstract]
Tier One Leverage Capital	$ 1,360,603	$ 815,823
Tier One Leverage Capital to Average Assets (as a percent)	10.18%	9.58%
Tier One Leverage Capital Required to be Well Capitalized	$ 667,987	$ 425,604
Tier One Leverage Capital Required to be Well Capitalized to Average Assets (as a percent)	5.00%	5.00%
South State Bank (the Bank) | Phased In Member
Capital ratios
Tier One Risk Based Capital Required for Capital Adequacy	$ 631,741	$ 346,629
Tier 1 common equity capital to risk-weighted assets (as a percent)	5.750	5.125
Tier One Risk Based Capital to Risk Weighted Assets [Abstract]
Leverage ratio (as a percent)		6.625%
Tier One Risk Based Capital Required for Capital Adequacy	$ 796,544	$ 448,081
Tier 1 capital to risk-weighted assets (as a percent)	7.25%
Total capital to risk-weighted assets
Minimum capital required, Capital Amount	$ 1,016,280	$ 583,351
Minimum capital required, Ratio (as a percent)	9.25%	8.625%
Tier One Leverage Capital to Average Assets [Abstract]
Tier One Leverage Capital to Average Assets (as a percent)		6.625%
Tier One Leverage Capital Required for Capital Adequacy	$ 534,390	$ 340,483
Minimum capital required, Ratio (as a percent)	4.00%	4.00%
South State Bank (the Bank) | Fully Phased Member
Capital ratios
Tier One Risk Based Capital Required for Capital Adequacy	$ 769,077	$ 473,444
Tier 1 common equity capital to risk-weighted assets (as a percent)	7	7
Tier One Risk Based Capital to Risk Weighted Assets [Abstract]
Tier One Risk Based Capital Required for Capital Adequacy	$ 933,879	$ 574,896
Tier 1 capital to risk-weighted assets (as a percent)	8.50%	8.50%
Total capital to risk-weighted assets
Minimum capital required, Capital Amount	$ 1,153,615	$ 710,166
Minimum capital required, Ratio (as a percent)	10.50%	10.50%
Tier One Leverage Capital to Average Assets [Abstract]
Tier One Leverage Capital Required for Capital Adequacy	$ 534,390	$ 340,483
Minimum capital required, Ratio (as a percent)	4.00%	4.00%

Condensed Financial Statemen122

Condensed Financial Statements of Parent Company - Condensed balance sheet - (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
ASSETS.
Cash	$ 377,627	$ 374,448	$ 695,794	$ 417,869
Investment securities available for sale	1,650,710	999,405
Other Assets	126,590	72,943
Total assets	14,466,589	8,900,592
Liabilities.	12,157,669	7,766,004
Shareholders' equity	2,308,920	1,134,588	1,059,384	984,920
Total liabilities and shareholders' equity	14,466,589	8,900,592
Parent company
ASSETS.
Cash	25,879	27,775	$ 21,592	$ 13,185
Investment securities available for sale		631
Investment in subsidiaries	2,399,744	1,163,616
Other Assets	1,111	1,235
Total assets	2,426,734	1,193,257
Liabilities.	117,813	58,669
Shareholders' equity	2,308,921	1,134,588
Total liabilities and shareholders' equity	$ 2,426,734	$ 1,193,257

Condensed Financial Statemen123

Condensed Financial Statements of Parent Company - Condensed Statements of Income - (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income:
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total	$ 168,805	$ 154,042	$ 150,375
Applicable income tax benefit	(81,251)	(52,760)	(50,902)
Net income	87,554	101,282	99,473
Net income	87,554	101,282	99,473
Parent company
Income:
Dividends from subsidiaries	63,703	36,328	82,765
Operating income (loss)	580	177	38
Total income	64,283	36,505	82,803
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total	48,801	23,817	73,920
Operating expenses	15,482	12,688	8,883
Applicable income tax benefit	5,053	4,270	2,975
Equity in undistributed earnings of subsidiary (excess distribution)	33,700	73,195	22,578
Net income	87,554	101,282	99,473
Net income	$ 87,554	$ 101,282	$ 99,473

Condensed Financial Statemen124

Condensed Financial Statements of Parent Company - Condensed Statements of Cash Flows - (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Cash flows from operating activities:
Net income	$ 87,554	$ 101,282	$ 99,473
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	28,704	21,582	21,470
Share-based Compensation.	6,934	6,220	5,803
Gain on sale of securities available for sale	(1,421)	(122)
Decrease (increase) in other assets	(32,324)	(13,799)	(4,861)
Decrease in Other Liabilities	7,076	9,068	(1,951)
Net cash provided by operating activities	197,890	138,011	186,868
Cash flows from investing activities:
Proceeds from calls of other investment securities			1,392
Net cash received from acquisitions	185,163		403,548
Net cash provided by (used in) investing activities	(60,900)	(690,919)	(103,015)
Cash flows from financing activities:
Repayment of other borrowings	(390,811)	(14)	(46,398)
Common stock issuance	1,055	925	908
Common stock repurchase	(5,512)	(5,981)	(5,631)
Dividends paid on common stock	(38,623)	(29,285)	(23,710)
Stock options exercised	1,965	2,204	1,115
Net cash provided by financing activities	(133,811)	231,562	194,072
Net increase (decrease) in cash and cash equivalents	3,179	(321,346)	277,925
Cash and cash equivalents at beginning of period	374,448	695,794	417,869
Cash and cash equivalents at end of period	377,627	374,448	695,794
Parent company
Cash flows from operating activities:
Net income	87,554	101,282	99,473
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	666	222	355
Share-based Compensation.	6,934	6,220	5,803
Gain on sale of securities available for sale	(486)	(122)
Decrease (increase) in other assets	(1,564)	26	(296)
Decrease in Other Liabilities	(6,341)	3,750	(1,648)
Undistributed earnings of subsidiary	(33,700)	(73,195)	(22,578)
Net cash provided by operating activities	53,063	38,183	81,109
Cash flows from investing activities:
Proceeds from calls of other investment securities	687	137	1,392
Payments for investments in subsidiary			(384)
Net cash received from acquisitions	15,468
Net cash provided by (used in) investing activities	16,155	137	1,008
Cash flows from financing activities:
Repayment of other borrowings	(30,000)		(46,392)
Common stock issuance	1,056	925	908
Common stock repurchase	(5,512)	(5,981)	(5,631)
Dividends paid on common stock	(38,623)	(29,285)	(23,710)
Stock options exercised	1,965	2,204	1,115
Net cash provided by financing activities	(71,114)	(32,137)	(73,710)
Net increase (decrease) in cash and cash equivalents	(1,896)	6,183	8,407
Cash and cash equivalents at beginning of period	27,775	21,592	13,185
Cash and cash equivalents at end of period	$ 25,879	$ 27,775	$ 21,592

Derivative Financial Instrum125

Derivative Financial Instruments (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2009
Derivative Financial Instruments
Notional amount	$ 745,613,000	$ 228,312,000
Estimated fair value gain	3,306,000	2,606,000
Estimated fair value loss	$ 3,248,000	731,000
Fixed rate payable on notional amount (as a percent)	4.06%
Variable rate basis, variable rate receivable on notional amount	three-month LIBOR
After-tax unrealized gain on cash flow hedge in other comprehensive income	$ 156,000	136,000
Cash flow hedge liability	246,000	498,000
Ineffectiveness in the cash flow hedge	$ 0	0
Fixed interest rate on interest rate swap (as a percent)	4.06%
Collateral provided	$ 300,000	550,000
Mortgage loan pipeline
Obligation under forward commitments, the fair value of those obligations along with the fair value of derivative instruments associated with forward commitments
Obligation	71,477,000	85,445,000
Expected closures
Obligation under forward commitments, the fair value of those obligations along with the fair value of derivative instruments associated with forward commitments
Obligation	53,608,000	64,083,000
Non-designated hedges
Derivative Financial Instruments
Notional amount	94,000,000	95,500,000
Interest rate contracts
Derivative Financial Instruments
Notional amount	551,500,000
Interest rate contracts | Cash flow hedge
Derivative Financial Instruments
Notional amount			$ 8,000,000
Mortgage servicing rights hedging | Non-designated hedges
Derivative Financial Instruments
Estimated gain (loss) on fair value of open contracts related to mortgage servicing rights	(252,000)	(52,000)
Mortgage servicing rights hedging | Non-designated hedges | Other Assets
Derivative Financial Instruments
Notional amount	94,000,000	95,500,000
Estimated fair value loss	252,000	52,000
Mortgage loan pipeline commitments
Obligation under forward commitments, the fair value of those obligations along with the fair value of derivative instruments associated with forward commitments
Fair value of forward commitments	(920,000)	(1,037,000)
Forward sales commitments
Obligation under forward commitments, the fair value of those obligations along with the fair value of derivative instruments associated with forward commitments
Obligation	89,317,000	97,092,000
Fair value of forward commitments	(19,000)	(1,366,000)
Forward sales commitments | Non-designated hedges | Other Assets
Derivative Financial Instruments
Notional amount	89,317,000	97,092,000
Estimated fair value gain	939,000	2,403,000
Interest rate swap
Derivative Financial Instruments
Estimated fair value gain	1,000	22,000
Interest rate swap | Cash flow hedge | Other Liabilities | Counterparty
Derivative Financial Instruments
Notional amount	8,000,000	8,000,000
Estimated fair value loss	246,000	498,000
Interest rate swap | Fair Value Hedging | Other Liabilities | Counterparty
Derivative Financial Instruments
Notional amount	2,824,000
Estimated fair value loss	92,000
Interest rate swap | Non-designated hedges | Other Assets and Other Liabilities | Borrower
Derivative Financial Instruments
Notional amount	275,736,000	13,860,000
Estimated fair value gain	1,899,000	203,000
Estimated fair value loss	2,658,000
Interest rate swap | Non-designated hedges | Other Assets and Other Liabilities | Counterparty
Derivative Financial Instruments
Notional amount	275,736,000	13,860,000
Estimated fair value gain	$ 468,000
Estimated fair value loss		$ 181,000

Loan Servicing, Mortgage Ori126

Loan Servicing, Mortgage Origination, and Loans Held for Sale (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2017	Dec. 31, 2016
Loans held for sale, loan servicing and mortgage origination
Mortgage servicing rights				$ 31,119	$ 29,037
Characteristics and sensitivity analysis of the MSR
Residential Mortgages Serviced for Others Percentage				100.00%	100.00%
Weighted average life	7 years 7 months 21 days	7 years 8 months 12 days
Constant prepayment rate (as a percent)	7.70%	7.70%
Weighted average discount rate (as a percent)	9.60%	9.80%
Effect on fair value due to change in interest rates:
Custodial escrow balances maintained in connection with the loan servicing				$ 15,300	$ 13,200
MSRs
Changes in the fair value of MSRs and its offsetting hedge.
Increase (decrease) in fair value of MSRs	$ (595)	$ 560	$ 1,015
Decay of MSRs	(3,762)	(4,153)	(3,371)
Gains (losses) related to derivatives	200	(402)	751
Net effect on Statements of Income	(4,157)	(3,995)	$ (1,605)
Effect on fair value due to change in interest rates:
25 basis point increase				1,485	1,399
50 basis point increase				2,664	2,557
25 basis point decrease				(1,850)	(1,713)
50 basis point decrease				$ (4,014)	$ (3,670)
Fixed-rate mortgage loans
Characteristics and sensitivity analysis of the MSR
Residential Mortgages Serviced for Others Percentage				99.70%	99.60%
Adjustable-rate mortgage loans
Characteristics and sensitivity analysis of the MSR
Residential Mortgages Serviced for Others Percentage				0.30%	0.40%
First Financial Holdings, Inc. ("First Financial")
Loans held for sale, loan servicing and mortgage origination
Residential mortgages serviced for others				$ 2,900,000	$ 2,700,000
Contractually specified servicing fees earned	7,200	6,800
First Financial Holdings, Inc. ("First Financial") | MSRs
Loans held for sale, loan servicing and mortgage origination
Mortgage servicing rights	29,000	29,000		$ 31,100	$ 29,000
Analysis of the activity in the MSRs
Balance at beginning of the period	29,000
Balance at end of period	$ 31,100	$ 29,000

Loan Servicing, Mortgage Ori127

Loan Servicing, Mortgage Origination, and Loans Held for Sale - Mandatory cash forwards - (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Mortgage loan securitizations, mandatory cash forwards, and whole loan sales
Mandatory cash forwards and whole loan sales	$ 746,900	$ 745,700
Mandatory cash forwards and whole loan sales, without servicing rights	$ 565,000	$ 605,600
Percentage of loan securitizations and loan sales	75.70%	81.20%
Loans held for sale	$ 70,890	$ 50,572
Residential mortgage loans to be sold in secondary market
Mortgage loan securitizations, mandatory cash forwards, and whole loan sales
Residential mortgage loans held for sale	45,500	50,600
Loans Held-for-sale, Mortgages	$ 45,500	$ 50,600
Residential mortgage loans awaiting sale in secondary market | Minimum
Mortgage loan securitizations, mandatory cash forwards, and whole loan sales
Loans held for sale, settlement period	15 days
Residential mortgage loans awaiting sale in secondary market | Maximum
Mortgage loan securitizations, mandatory cash forwards, and whole loan sales
Loans held for sale, settlement period	45 days
Park Sterling Corporation
Mortgage loan securitizations, mandatory cash forwards, and whole loan sales
Loans held for sale, commercial	$ 25,400

Investments in Qualified Aff128

Investments in Qualified Affordable Housing Projects (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Investment In Qualified Affordable Housing Projects.
Tax Credits and Benefits	$ 3.3	$ 2.4
Amortization	3	1.5
Carrying value	36.6	26.8
Original Investment Value	46.9
Funding obligation	$ 18.5	$ 14.7