SouthState (SSB) 10-Q 3 Nov 17 2017 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2017	Oct. 31, 2017
Document and Entity Information
Entity Registrant Name	SOUTH STATE Corp
Entity Central Index Key	764,038
Document Type	10-Q
Document Period End Date	Sep. 30, 2017
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		29,294,271
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q3

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016
Cash and cash equivalents:
Cash and due from banks	$ 197,984	$ 201,966	$ 168,774
Interest-bearing deposits with banks	137,543	36,241	66,335
Federal funds sold and securities purchased under agreements to resell	68,407	136,241	272,408
Total cash and cash equivalents	403,934	374,448	507,517
Investment securities:
Securities held to maturity (fair value of $3,732, $6,250 and $7,076, respectively)	3,678	6,094	6,851
Securities available for sale, at fair value	1,320,679	999,405	925,374
Other investments	12,439	9,482	9,482
Total investment securities	1,336,796	1,014,981	941,707
Loans held for sale	46,321	50,572	57,052
Loans:
Loans, net	8,223,204	6,643,326	6,489,068
Other real estate owned	13,527	18,316	22,211
Premises and equipment, net	198,146	183,510	179,450
Bank owned life insurance	151,402	104,148	103,427
Deferred tax assets	41,664	31,123	25,357
Mortgage servicing rights	29,937	29,037	23,064
Core deposit and other intangibles	50,472	39,848	41,738
Goodwill	597,236	338,340	338,340
Other assets	76,471	72,943	68,234
Total assets	11,169,110	8,900,592	8,797,165
Deposits:
Noninterest-bearing	2,505,570	2,199,046	2,176,155
Interest-bearing	6,556,451	5,135,377	5,071,251
Total deposits	9,062,021	7,334,423	7,247,406
Federal funds purchased and securities sold under agreements to repurchase	291,099	313,773	305,268
Other borrowings	83,307	55,358	55,306
Other liabilities	99,858	62,450	65,053
Total liabilities	9,536,285	7,766,004	7,673,033
Shareholders' equity:
Preferred stock - $.01 par value; authorized 10,000,000 shares; no shares issued and outstanding
Common stock - $2.50 par value; authorized 40,000,000 shares; 29,267,369, 24,230,392 and 24,209,122 shares issued and outstanding, respectively	73,168	60,576	60,523
Surplus	1,136,352	711,307	705,124
Retained earnings	427,093	370,916	354,490
Accumulated other comprehensive income (loss)	(3,788)	(8,211)	3,995
Total shareholders' equity	1,632,825	1,134,588	1,124,132
Total liabilities and shareholders' equity	11,169,110	8,900,592	8,797,165
Acquired credit impaired loans
Loans:
Loans, net	578,863	602,546	632,617
Total loans	582,533		636,020
Non-acquired loans
Loans:
Total loans	6,230,327	5,241,041	5,008,113
Less allowance for non-acquired loan losses	(41,541)	(36,960)	(37,319)
Loans, net	6,188,786	5,204,081	4,970,794
Acquired non-credit impaired loans
Loans:
Loans, net	1,455,555	$ 836,699	885,657
Total loans	$ 1,455,555		$ 885,657

Condensed Consolidated Balance3

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016
Shareholders' equity:
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01	$ 0.01
Preferred stock, shares authorized	10,000,000	10,000,000	10,000,000
Preferred stock, shares issued	0	0	0
Preferred stock, shares outstanding	0	0	0
Common stock, par value (in dollars per share)	$ 2.50	$ 2.50	$ 2.50
Common stock, shares authorized	40,000,000	40,000,000	40,000,000
Common stock, shares issued	29,267,369	24,230,392	24,209,122
Common stock, shares outstanding	29,267,369	24,230,392	24,209,122
Investment securities:
Securities held to maturity, fair value (in dollars)	$ 3,732	$ 6,250	$ 7,076

Condensed Consolidated Statemen

Condensed Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Interest income:
Loans, including fees	$ 95,864	$ 77,344	$ 281,216	$ 231,752
Investment securities:
Taxable	6,646	4,309	20,897	13,579
Tax-exempt	1,320	962	4,147	2,970
Federal funds sold and securities purchased under agreements to resell	581	666	1,916	2,174
Total interest income	104,411	83,281	308,176	250,475
Interest expense:
Deposits	2,974	1,412	8,132	4,380
Federal funds purchased and securities sold under agreements to repurchase	276	137	756	418
Other borrowings	842	487	2,576	1,431
Total interest expense	4,092	2,036	11,464	6,229
Net interest income	100,319	81,245	296,712	244,246
Provision for loan losses	2,062	912	8,082	6,198
Net interest income after provision for loan losses	98,257	80,333	288,630	238,048
Noninterest income:
Fees on deposit accounts	22,448	20,776	66,322	62,439
Mortgage banking income	3,446	6,286	14,210	16,104
Trust and investment services income	6,310	4,877	18,703	14,573
Securities gains, net	1,278		1,388	122
Other-than-temporary impairment losses	(753)		(753)
Recoveries on acquired loans	1,944	2,207	5,647	5,130
Amortization of FDIC indemnification asset, net				(5,901)
Other	1,367	1,194	4,532	5,032
Total noninterest income	36,040	35,340	110,049	97,499
Noninterest expense:
Salaries and employee benefits	47,245	41,972	143,711	123,941
Net occupancy expense	6,214	5,464	18,650	16,364
Information services expense	6,003	5,237	18,776	15,353
Furniture and equipment expense	3,751	3,234	11,422	9,157
OREO expense and loan related	1,753	2,085	5,648	4,733
Bankcard expense	2,748	2,940	8,404	8,859
Amortization of intangibles	2,494	1,891	7,496	5,687
Supplies, printing and postage expense	1,491	1,345	4,715	4,910
Professional fees	1,265	1,758	4,637	4,663
FDIC assessment and other regulatory charges	918	1,001	3,029	3,162
Advertising and marketing	852	790	2,400	2,293
Merger and branch consolidation related expenses	1,551	709	26,882	3,240
Other	5,289	4,765	17,066	16,712
Total noninterest expense	81,574	73,191	272,836	219,074
Earnings:
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total	52,723	42,482	125,843	116,473
Provision for income taxes	17,677	14,387	40,710	39,368
Net income	35,046	28,095	85,133	77,105
Net income	$ 35,046	$ 28,095	$ 85,133	$ 77,105
Earnings per common share:
Basic (in dollars per share)	$ 1.20	$ 1.17	$ 2.92	$ 3.21
Diluted (in dollars per share)	1.19	1.16	2.90	3.18
Dividends per common share (in dollars per share)	$ 0.33	$ 0.31	$ 0.99	$ 0.89
Weighted-average common shares outstanding:
Basic (in shares)	29,115	24,016	29,023	23,989
Diluted (in shares)	29,385	24,278	29,291	24,229

Condensed Consolidated Stateme5

Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Condensed Consolidated Statements of Comprehensive Income
Net income	$ 35,046	$ 28,095	$ 85,133	$ 77,105
Unrealized gains (losses) on securities:
Unrealized holding gains (losses) arising during period	130	(4,388)	7,049	12,162
Tax effect	(50)	1,673	(2,687)	(4,638)
Reclassification adjustment for (gains) losses included in net income	(525)		(635)	(122)
Tax effect	200		242	47
Net of tax amount	(245)	(2,715)	3,969	7,449
Unrealized losses on derivative financial instruments qualifying as cash flow hedges:
Unrealized holding losses arising during period	4	51	(56)	(147)
Tax effect	(1)	(19)	21	56
Reclassification adjustment for losses included in interest expense	57	69	226	209
Tax effect	(22)	(27)	(86)	(80)
Net of tax amount	38	74	105	38
Change in pension plan obligation:
Reclassification adjustment for changes included in net income	188	204	564	612
Tax effect	(72)	(78)	(215)	(233)
Net of tax amount	116	126	349	379
Other comprehensive income (loss), net of tax	(91)	(2,515)	4,423	7,866
Comprehensive income	$ 34,955	$ 25,580	$ 89,556	$ 84,971

Condensed Consolidated Stateme6

Condensed Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands	Common Stock	Surplus	Retained Earnings	Accumulated Other Comprehensive Income (Loss).	Total
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
Comprehensive income			77,105	7,866	84,971
Cash dividends declared on common stock per share			(21,534)		(21,534)
Employee stock purchases	$ 19	455			474
Employee stock purchases (in shares)	7,793
Stock options exercised	$ 111	1,402			1,513
Stock options exercised (in shares)	44,491
Restricted stock awards	$ 99	(99)
Restricted stock awards (in shares)	39,431
Stock issued pursuant to restricted stock units.	$ 90	(90)
Stock issued pursuant to restricted stock units (in shares)	35,903
Value of common stock repurchased buyback plan	$ (82)	(2,048)			(2,130)
Common stock repurchased buyback plan (in shares)	(32,900)
Common stock repurchased	$ (121)	(3,129)			(3,250)
Common stock repurchased (in shares)	(48,253)
Share-based compensation expense		4,704			4,704
Balance at Sep. 30, 2016	$ 60,523	705,124	354,490	3,995	$ 1,124,132
Balance (in shares) at Sep. 30, 2016	24,209,122				24,209,122
Balance (in shares) Preferred Stock at Sep. 30, 2016					0
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
Comprehensive income			85,133	4,423	$ 89,556
Cash dividends declared on common stock per share			(28,956)		(28,956)
Employee stock purchases	$ 17	536			553
Employee stock purchases (in shares)	6,742
Stock options exercised	$ 84	1,050			1,134
Stock options exercised (in shares)	33,896
Common stock issued for Southeastern Bank Financial Corp. acquisition	$ 12,446	422,163			434,609
Common stock issued for Southeastern Bank Financial Corp. acquisition (in shares)	4,978,338
Restricted stock awards	$ 51	(51)
Restricted stock awards (in shares)	20,683
Stock issued pursuant to restricted stock units.	$ 95	(95)
Stock issued pursuant to restricted stock units (in shares)	37,802
Common stock repurchased	$ (101)	(3,525)			(3,626)
Common stock repurchased (in shares)	(40,484)
Share-based compensation expense		4,967			4,967
Balance at Sep. 30, 2017	$ 73,168	$ 1,136,352	$ 427,093	$ (3,788)	$ 1,632,825
Balance (in shares) at Sep. 30, 2017	29,267,369				29,267,369
Balance (in shares) Preferred Stock at Sep. 30, 2017					0

Condensed Consolidated Stateme7

Condensed Consolidated Statements of Changes in Shareholders' Equity (Parenthetical) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Condensed Consolidated Statements of Changes in Shareholders' Equity
Cash dividends declared, per share (in dollars per share)	$ 0.33	$ 0.31	$ 0.99	$ 0.89

Condensed Consolidated Stateme8

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Cash flows from operating activities:
Net income	$ 85,133	$ 77,105
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	21,030	16,016
Provision for loan losses	8,082	6,198
Deferred income taxes	3,144	7,622
Other-than-temporary impairment on securities	753
(Gain) loss on sale of securities, net	(1,388)	(122)
Share-based compensation expense	4,967	4,704
Amortization on FDIC indemnification asset		3,566
Accretion of discount related to performing acquired loans	(9,779)	(4,183)
(Gain) Loss on disposals of premises and equipment	171	(52)
Gain on sale of OREO	(2)	(1,672)
Net amortization of premium on investment securities	5,068	4,095
OREO Write downs	2,220	4,070
Fair Value adjustment for loans held for sale	867	(732)
Originations and purchases of mortgage loans for sale	(558,459)	(557,388)
Proceeds from mortgage loans sales	575,495	542,717
Net change in:
Accrued interest receivable	(475)	(419)
Prepaid assets	1,865	(563)
FDIC indemnification asset		3,177
Miscellaneous other assets	(5,844)	(7,983)
Accrued interest payable	(160)	(806)
Accrued income taxes	10,763	6,775
Miscellaneous other liabilities	4,482	10,393
Net cash provided by operating activities	147,933	112,518
Cash flows from investing activities:
Proceeds from sales of investment securities available for sale	265,965	137
Proceeds from maturities and calls of investment securities held to maturity	2,420	2,466
Proceeds from maturities and calls of investment securities available for sale	182,299	324,110
Proceeds from sales of other investment securities	3,444	71
Purchases of investment securities available for sale	(183,581)	(232,016)
Purchases of other investment securities	(303)	(660)
Net increase in loans	(533,647)	(533,393)
Payment to terminate FDIC Loss Share Agreements		(2,342)
Recoveries of loans previously charged off	2,455	2,620
Net cash received from acquisitions	70,188
Purchases of premises and equipment	(9,095)	(18,320)
Proceeds from sale of OREO	11,331	17,392
Proceeds from sale of premises and equipment	15	52
Net cash provided by (used in) investing activities	(188,509)	(439,883)
Cash flows from financing activities:
Net increase (decrease) in deposits	206,678	146,990
Net increase in federal funds purchased and securities sold under agreements to repurchase and other short-term borrowings	(23,688)	17,037
Repayment of other borrowings	(82,033)	(12)
Common stock issuance	553	474
Common stock repurchase	(3,626)	(5,380)
Dividends paid on common stock	(28,956)	(21,534)
Stock options exercised	1,134	1,513
Net cash provided by financing activities	70,062	139,088
Net increase (decrease) in cash and cash equivalents	29,486	(188,277)
Cash and cash equivalents at beginning of period	374,448	695,794
Cash and cash equivalents at end of period	403,934	507,517
Cash paid for:
Interest	11,625	7,036
Income taxes	25,534	25,364
Schedule of Noncash Investing Transactions:
Real estate acquired in full or in partial settlement of loans	$ 8,375	$ 11,447

Basis of Presentation

Basis of Presentation	9 Months Ended
	Sep. 30, 2017
Basis of Presentation
Basis of Presentation	Note 1 — Basis of Presentation The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and disclosures required by accounting principles generally accepted in the United States (“GAAP”) for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. Certain prior period information has been reclassified to conform to the current period presentation, and these reclassifications had no impact on net income or equity as previously reported. Operating results for the three and nine months ended September 30, 2017 are not necessarily indicative of the results that may be expected for the year ending December 31, 2017. The condensed consolidated balance sheet at December 31, 2016 has been derived from the audited financial statements at that date but does not include all of the information and disclosures required by GAAP for complete financial statements.

Summary of Significant Accounti

Summary of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2017
Summary of Significant Accounting Policies
Summary of Significant Accounting Policies	Note 2 — Summary of Significant Accounting Policies The information contained in the consolidated financial statements and accompanying notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2016, as filed with the Securities and Exchange Commission (the “SEC”) on February 24, 2017, should be referenced when reading these unaudited condensed consolidated financial statements. 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 subsidiaries. References to the “Bank” means South State Corporation’s wholly owned subsidiary, South State Bank, a South Carolina banking corporation.

Recent Accounting and Regulator

Recent Accounting and Regulatory Pronouncements	9 Months Ended
	Sep. 30, 2017
Recent Accounting and Regulatory Pronouncements
Recent Accounting and Regulatory Pronouncements	Note 3 — Recent Accounting and Regulatory Pronouncements In August 2017, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“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 had 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. ASU 2016-20 and 2014-09 could require us to change how we recognize certain revenue streams within non-interest income, however, we do not expect these changes to have a significant impact on our financial statements. We continue to evaluate the impact of ASU 2016-20 and 2014-09 on our Company and expect to adopt the standard in the first quarter of 2018 with a cumulative effect adjustment to opening retained earnings, if such adjustment is deemed to be significant. 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. The Company does not believe that this guidance will 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 became effective for interim and annual periods beginning after December 15, 2016 which made this ASU effective for the Company starting On January 1, 2017. For the three and nine months ended September 30, 2017, excess tax benefits of $104,000 and $839,000, respectively, 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. ASU 2016-08 and 2014-09 could require us to change how we recognize certain revenue streams within non-interest income, however, we do not expect these changes to have a significant impact on our financial statements. We continue to evaluate the impact of ASU 2016-08 and 2014-09 on our Company and expect to adopt the standard in the first quarter of 2018 with a cumulative effect adjustment to opening retained earnings, if such adjustment is deemed to be significant. 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 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. 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 available for sale 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 is currently evaluating the provisions of ASU 2016-01 to determine the potential impact the new standard will have to the Company’s consolidated financial statements. In September 2015, 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 became 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 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 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 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. ASU 2014-09 could require us to change how we recognize certain revenue streams within non-interest income, however, we do not expect these changes to have a significant impact on our financial statements. We continue to evaluate the impact of ASU 2014-09 on our Company and expect to adopt the standard in the first quarter of 2018 with a cumulative effect adjustment to opening retained earnings, if such adjustment is deemed to be significant.

Mergers and Acquisitions

Mergers and Acquisitions	9 Months Ended
	Sep. 30, 2017
Mergers and Acquisitions
Mergers and Acquisitions	Note 4 — Mergers and Acquisitions The following are business combinations which are currently proposed or have occurred over the past two years: · Southeastern Bank Financial Corporation (“SBFC”) – January 3, 2017 · Park Sterling Corporation - Proposed Park Sterling Corporation Proposed Acquisition On April 26, 2017, South State Corporation, (“SSB”) entered into an Agreement and Plan of Merger with Park Sterling Corporation, a North Carolina corporation ("PSTB) , and a bank holding company headquartered in Charlotte, North Carolina. The Merger Agreement provides that, upon the terms and subject to the conditions set forth therein, PSTB will merge with and into SSB, with SSB as the surviving corporation in the Merger. Immediately following the Merger, PSTB's wholly owned bank subsidiary, Park Sterling Bank ("PSB"), will merge with and into the Bank, with the Bank as the surviving entity in the bank merger. At September 30, 2017, PSTB reported $3.3 billion in total assets, $2.4 billion in loans and $2.5 billion in deposits. PSTB has over 50 full service branches in North Carolina, South Carolina, Georgia and Virginia that serve individuals and businesses. With the closing of the merger with PSTB, the Company plans to close 12 PSB branches and 2 legacy SSB branches by the end of 2018. Under the terms of the merger agreement, PSTB common shareholders will receive aggregate consideration of approximately 7, 471,072 shares of SSB common stock, plus cash for the value of “in the money” outstanding stock options. The common stock consideration is based upon a fixed exchange ratio of 0.14 shares of SSB common stock for each outstanding share of PSTB common stock. Special shareholder meetings of PSTB and SSB to ratify the merger proposal were held on October 25, 2017 and the merger proposal was approved. The proposed merger is still subject to regulatory approvals and other customary closing conditions. The transaction is expected to close during the fourth quarter of 2017. Southeastern Bank Financial Corporation Acquisition 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. The following table presents the assets acquired and liabilities assumed as of January 3, 2017 and their initial and subsequent fair value estimates, as recorded by the Company. The Company has up to one year after the acquisition date to make subsequent fair value adjustments. Intial 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) — 23,207 Intangible assets 140 17,980 (d) — 18,120 OREO and repossessed assets 580 (30) (e) (165) (e) 385 Bank owned life insurance 44,513 — — 44,513 Deferred tax asset 16,247 (687) (f) 850 (f) 16,410 Other assets 7,545 (482) (g) — 7,063 Total assets $ 1,832,581 $ 2,131 $ 685 $ 1,835,397 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) (1,525) 176,220 Goodwill — 257,370 1,525 258,895 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 $30,749 based on the Company’s evaluation of the acquired loan portfolio and excludes the allowance for loan losses (“ALLL”) of $20,081 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 $18,120. (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 $2,149, netted with premium on certain Federal Home Loan Bank (“FHLB “) advances of $1,029. (i)—Adjustment reflects the fair value adjustments to employee benefit plans of $8,259 netted against an adjustment of other miscellaneous liabilities of $496.

Investment Securities

Investment Securities	9 Months Ended
	Sep. 30, 2017
Investment Securities
Investment Securities	Note 5 — 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 September 30, 2017: State and municipal obligations $ 3,678 $ 54 $ — $ 3,732 December 31, 2016: State and municipal obligations $ 6,094 $ 156 $ — $ 6,250 September 30, 2016: State and municipal obligations $ 6,851 $ 225 $ — $ 7,076 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 September 30, 2017: Government-sponsored entities debt* $ 86,521 $ 72 $ (642) $ 85,951 State and municipal obligations 199,898 4,584 (188) 204,294 Mortgage-backed securities** 1,027,827 4,673 (5,023) 1,027,477 Corporate stocks 2,781 176 — 2,957 $ 1,317,027 $ 9,505 $ (5,853) $ 1,320,679 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 stocks 3,658 473 (347) 3,784 $ 1,002,166 $ 5,847 $ (8,608) $ 999,405 September 30, 2016: Government-sponsored entities debt* $ 62,996 $ 20 $ (36) $ 62,980 State and municipal obligations 112,797 4,542 (15) 117,324 Mortgage-backed securities** 729,699 11,721 (143) 741,277 Corporate stocks 3,658 380 (245) 3,793 $ 909,150 $ 16,663 $ (439) $ 925,374 * - 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 September 30, 2017: Federal Home Loan Bank stock $ 10,177 $ — $ — $ 10,177 Investment in unconsolidated subsidiaries 2,262 — — 2,262 $ 12,439 $ — $ — $ 12,439 December 31, 2016: Federal Home Loan Bank stock $ 7,840 $ — $ — $ 7,840 Investment in unconsolidated subsidiaries 1,642 — — 1,642 $ 9,482 $ — $ — $ 9,482 September 30, 2016: Federal Home Loan Bank stock $ 7,840 $ — $ — $ 7,840 Investment in unconsolidated subsidiaries 1,642 — — 1,642 $ 9,482 $ — $ — $ 9,482 The amortized cost and fair value of debt securities at September 30, 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. Corporate Stocks including equity and preferred stocks with no stated maturity are included in the due after ten years category. 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 $ 2,225 $ 2,253 $ 12,023 $ 12,090 Due after one year through five years 1,153 1,179 109,509 110,127 Due after five years through ten years 300 300 275,960 278,021 Due after ten years — — 919,535 920,441 $ 3,678 $ 3,732 $ 1,317,027 $ 1,320,679 Information pertaining to the Company’s securities with gross unrealized losses at September 30, 2017, December 31, 2016 and September 30, 2016, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position is as follows: Less Than Twelve Months Twelve Months or More Gross Gross Unrealized Fair Unrealized Fair (Dollars in thousands) Losses Value Losses Value September 30, 2017: Securities Available for Sale Government-sponsored entities debt $ 473 $ 68,366 $ 169 $ 11,830 State and municipal obligations 188 21,851 — — Mortgage-backed securities 4,457 455,145 566 35,917 Corporate stocks — — — — $ 5,118 $ 545,362 $ 735 $ 47,747 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 stocks — — 347 1,395 $ 8,184 $ 688,376 $ 424 $ 3,453 September 30, 2016: Securities Available for Sale Government-sponsored entities debt $ 36 $ 11,962 $ — $ — State and municipal obligations 15 1,947 — — Mortgage-backed securities 106 56,023 37 2,325 Corporate stocks — — 245 1,496 $ 157 $ 69,932 $ 282 $ 3,821 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. All debt securities available for sale in an unrealized loss position as of September 30, 2017 continue to perform as scheduled. 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 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 September 30, 2017. With respect to equity securities held by the Company, the Company recorded 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 the Company’s 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 its securities may be sold or are other than temporarily impaired, which would require a charge to earnings in such periods.

Loans and Allowance for Loan Lo

Loans and Allowance for Loan Losses	9 Months Ended
	Sep. 30, 2017
Loans and Allowance for Loan Losses
Loans and Allowance for Loan Losses	Note 6 — Loans and Allowance for Loan Losses The following is a summary of non-acquired loans: September 30, December 31, September 30, (Dollars in thousands) 2017 2016 2016 Non-acquired loans: Commercial non-owner occupied real estate: Construction and land development $ 766,957 $ 580,464 $ 562,336 Commercial non-owner occupied 949,870 714,715 630,437 Total commercial non-owner occupied real estate 1,716,827 1,295,179 1,192,773 Consumer real estate: Consumer owner occupied 1,454,758 1,197,621 1,183,441 Home equity loans 419,760 383,218 363,825 Total consumer real estate 1,874,518 1,580,839 1,547,266 Commercial owner occupied real estate 1,278,487 1,177,745 1,153,480 Commercial and industrial 781,757 671,398 617,525 Other income producing property 194,335 178,238 179,595 Consumer 371,758 324,238 305,687 Other loans 12,645 13,404 11,787 Total non-acquired loans 6,230,327 5,241,041 5,008,113 Less allowance for loan losses (41,541) (36,960) (37,319) Non-acquired loans, net $ 6,188,786 $ 5,204,081 $ 4,970,794 The following is a summary of acquired non-credit impaired loans accounted for under FASB ASC Topic 310-20, net of related discount: September 30, December 31, September 30, (Dollars in thousands) 2017 2016 2016 FASB ASC Topic 310-20 acquired loans: Commercial non-owner occupied real estate: Construction and land development $ 76,886 $ 10,090 $ 10,683 Commercial non-owner occupied 199,704 34,628 35,775 Total commercial non-owner occupied real estate 276,590 44,718 46,458 Consumer real estate: Consumer owner occupied 492,615 408,270 435,132 Home equity loans 164,291 160,879 168,758 Total consumer real estate 656,906 569,149 603,890 Commercial owner occupied real estate 207,572 27,195 29,444 Commercial and industrial 101,427 13,641 14,201 Other income producing property 76,924 39,342 43,152 Consumer 136,136 142,654 148,512 Total FASB ASC Topic 310-20 acquired loans $ 1,455,555 $ 836,699 $ 885,657 The unamortized discount related to the acquired non-credit impaired loans totaled $20.7 million, $11.6 million, and $12.6 million at September 30, 2017, December 31, 2016, and September 30, 2016, respectively. 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: September 30, December 31, September 30, (Dollars in thousands) 2017 2016 2016 FASB ASC Topic 310-30 acquired loans: Commercial loans greater than or equal to $1 million-Community Bank & Trust ("CBT") $ 8,439 $ 8,617 $ 10,958 Commercial real estate 199,082 210,204 220,489 Commercial real estate—construction and development 46,248 44,373 47,081 Residential real estate 249,666 258,100 268,968 Consumer 53,302 59,300 61,866 Commercial and industrial 25,796 25,347 26,658 Total FASB ASC Topic 310-30 acquired loans 582,533 605,941 636,020 Less allowance for loan losses (3,670) (3,395) (3,403) FASB ASC Topic 310-30 acquired loans, net $ 578,863 $ 602,546 $ 632,617 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 and non-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 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 acquired credit impaired loans as of September 30, 2017, December 31, 2016 and September 30, 2016 are as follows: September 30, December 31, September 30, (Dollars in thousands) 2017 2016 2016 Contractual principal and interest $ 741,268 $ 778,822 $ 822,340 Non-accretable difference (26,160) (17,502) (22,222) Cash flows expected to be collected 715,108 761,320 800,118 Accretable yield (132,575) (155,379) (164,098) Carrying value $ 582,533 $ 605,941 $ 636,020 Allowance for acquired loan losses $ (3,670) $ (3,395) $ (3,403) 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 difference 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: Nine Months Ended September 30, (Dollars in thousands) 2017 2016 Balance at beginning of period $ 602,546 $ 733,870 Fair value of acquired loans 55,850 — Net reductions for payments, foreclosures, and accretion (79,258) (101,556) Change in the allowance for loan losses on acquired loans (275) 303 Balance at end of period, net of allowance for loan losses on acquired loans $ 578,863 $ 632,617 The table below reflects refined accretable yield balance for acquired credit impaired loans: Nine Months Ended September 30, (Dollars in thousands) 2017 2016 Balance at beginning of period $ 155,379 $ 201,538 Addition from the SBFC acquisition 4,603 — Accretion (43,873) (56,850) Reclass of nonaccretable difference due to improvement in expected cash flows 16,772 18,631 Other changes, net (306) 779 Balance at end of period $ 132,575 $ 164,098 In the third quarter of 2017, the accretable yield balance declined by $14.3 million as loan accretion (income) was recognized. This was partially offset by improved expected cash flows of $7.8 million during the third quarter of 2017. Our loan loss policy adheres to GAAP as well as interagency guidance. The ALLL is based upon estimates made by management. We maintain an ALLL 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, as noted above, 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 ALLL 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 First Financial Holdings, Inc. (“FFHI”) acquisition in 2013, the Company segregates the acquired 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 ALLL 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 ALLL. 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, as discussed below, which offset 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. 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, which was 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 Non-Credit Acquired Credit (Dollars in thousands) Loans Impaired Loans Impaired Loans Total Three Months Ended September 30, 2017: Balance at beginning of period $ 40,149 $ — $ 3,741 $ 43,890 Loans charged-off (1,383) (275) — (1,658) Recoveries of loans previously charged off (1) 836 279 — 1,115 Net charge-offs (547) 4 — (543) Provision for loan losses charged to operations 1,939 (4) 127 2,062 Provision for loan losses recorded through the FDIC loss share receivable — — — — Reduction due to loan removals — — (198) (198) Balance at end of period $ 41,541 $ — $ 3,670 $ 45,211 Three Months Ended September 30, 2016: Balance at beginning of period $ 36,939 $ — $ 3,752 $ 40,691 Loans charged-off (1,108) (280) — (1,388) Recoveries of loans previously charged off (1) 713 120 — 833 Net charge-offs (395) (160) — (555) Provision 775 160 (23) 912 Benefit attributable to FDIC loss share agreements — — — — Provision for loan losses charged to operations 775 160 (23) 912 Provision for loan losses recorded through the FDIC loss share receivable — — — — Reduction due to loan removals — — (326) (326) Balance at end of period $ 37,319 $ — $ 3,403 $ 40,722 Non-acquired Acquired Non-Credit Acquired Credit (Dollars in thousands) Loans Impaired Loans Impaired Loans Total Nine Months Ended September 30, 2017: Balance at beginning of period $ 36,960 $ — $ 3,395 $ 40,355 Loans charged-off (3,972) (1,165) — (5,137) Recoveries of loans previously charged off (1) 2,041 414 — 2,455 Net charge-offs (1,931) (751) — (2,682) Provision 6,512 751 819 8,082 Benefit attributable to FDIC loss share agreements — — — — Total provision for loan losses charged to operations 6,512 751 819 8,082 Provision for loan losses recorded through the FDIC loss share receivable — — — — Reduction due to loan removals — — (544) (544) Balance at end of period $ 41,541 $ — $ 3,670 $ 45,211 Nine Months Ended September 30, 2016: Balance at beginning of period $ 34,090 $ — $ 3,706 $ 37,796 Loans charged-off (4,384) (810) — (5,194) Recoveries of loans previously charged off (1) 2,358 262 — 2,620 Net charge-offs (2,026) (548) — (2,574) Provision 5,255 548 372 6,175 Benefit attributable to FDIC loss share agreements — — 23 23 Total provision for loan losses charged to operations 5,255 548 395 6,198 Provision for loan losses recorded through the FDIC loss share receivable — — (23) (23) Reduction due to loan removals — — (675) (675) Balance at end of period $ 37,319 $ — $ 3,403 $ 40,722 (1) – Recoveries related to acquired credit impaired loans are recorded through other noninterest income on the consolidated statement of income and do not run through the ALLL. 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 Three Months Ended September 30, 2017 Allowance for loan losses: Balance, June 30, 2017 $ 5,746 $ 6,164 $ 7,539 $ 8,569 $ 3,247 $ 5,143 $ 1,379 $ 2,532 $ (170) $ 40,149 Charge-offs (19) — — — (17) (440) (10) (897) — (1,383) Recoveries 333 80 92 65 38 31 29 168 — 836 Provision (benefit) (88) (7) 479 492 (171) 469 (10) 889 (114) 1,939 Balance, September 30, 2017 $ 5,972 $ 6,237 $ 8,110 $ 9,126 $ 3,097 $ 5,203 $ 1,388 $ 2,692 $ (284) $ 41,541 Loans individually evaluated for impairment $ 1,266 $ 133 $ 64 $ 47 $ 116 $ 18 $ 211 $ 7 $ — $ 1,862 Loans collectively evaluated for impairment $ 4,706 $ 6,104 $ 8,046 $ 9,079 $ 2,981 $ 5,185 $ 1,177 $ 2,685 $ (284) $ 39,679 Loans: Loans individually evaluated for impairment $ 42,638 $ 716 $ 5,874 $ 4,455 $ 2,623 $ 627 $ 3,605 $ 254 $ — $ 60,792 Loans collectively evaluated for impairment 724,319 949,154 1,272,613 1,450,303 417,137 781,130 190,730 371,504 12,645 6,169,535 Total non-acquired loans $ 766,957 $ 949,870 $ 1,278,487 $ 1,454,758 $ 419,760 $ 781,757 $ 194,335 $ 371,758 $ 12,645 $ 6,230,327 Three Months Ended September 30, 2016 Allowance for loan losses: Balance , June 30, 2016 $ 4,665 $ 4,656 $ 8,003 $ 7,530 $ 3,148 $ 4,269 $ 1,812 $ 2,014 $ 842 $ 36,939 Charge-offs — — (16) (45) — (31) — (1,016) — (1,108) Recoveries 241 28 25 27 64 104 8 216 — 713 Provision (benefit) (795) (93) 516 338 69 368 (201) 1,094 (521) 775 Balance, September 30, 2016 $ 4,111 $ 4,591 $ 8,528 $ 7,850 $ 3,281 $ 4,710 $ 1,619 $ 2,308 $ 321 $ 37,319 Loans individually evaluated for impairment $ 359 $ 181 $ 65 $ 58 $ 38 $ 385 $ 289 $ 4 $ — $ 1,379 Loans collectively evaluated for impairment $ 3,752 $ 4,410 $ 8,463 $ 7,792 $ 3,243 $ 4,325 $ 1,330 $ 2,304 $ 321 $ 35,940 Loans: Loans individually evaluated for impairment $ 3,431 $ 764 $ 6,352 $ 3,127 $ 1,599 $ 1,453 $ 4,319 $ 142 $ — $ 21,187 Loans collectively evaluated for impairment 558,905 629,673 1,147,128 1,180,314 362,226 616,072 175,276 305,545 11,787 4,986,926 Total non-acquired loans $ 562,336 $ 630,437 $ 1,153,480 $ 1,183,441 $ 363,825 $ 617,525 $ 179,595 $ 305,687 $ 11,787 $ 5,008,113 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 Nine Months Ended September 30, 2017 Allowance for loan losses: Balance, December 31, 2016 $ 4,091 $ 4,980 $ 8,022 $ 7,820 $ 3,211 $ 4,842 $ 1,542 $ 2,350 $ 102 $ 36,960 Charge-offs (493) — — (185) (241) (629) (17) (2,407) — (3,972) Recoveries 555 128 197 141 133 264 77 546 — 2,041 Provision (benefit) 1,819 1,129 (109) 1,350 (6) 726 (214) 2,203 (386) 6,512 Balance, September 30, 2017 $ 5,972 $ 6,237 $ 8,110 $ 9,126 $ 3,097 $ 5,203 $ 1,388 $ 2,692 $ (284) $ 41,541 Nine Months Ended September 30, 2016 Allowance for loan losses: Balance, December 31, 2015 $ 4,116 $ 3,568 $ 8,341 $ 7,212 $ 2,929 $ 3,974 $ 1,963 $ 1,694 $ 293 $ 34,090 Charge-offs (159) — (117) (174) (767) (358) (7) (2,802) — (4,384) Recoveries 848 59 46 125 239 207 47 787 — 2,358 Provision (benefit) (694) 964 258 687 880 887 (384) 2,629 28 5,255 Balance, September 30, 2016 $ 4,111 $ 4,591 $ 8,528 $ 7,850 $ 3,281 $ 4,710 $ 1,619 $ 2,308 $ 321 $ 37,319 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 Total Three Months Ended September 30, 2017 Allowance for loan losses: Balance at beginning of period $ — $ — $ — $ — $ — $ — $ — $ — $ — Charge-offs — — — (80) (71) (1) — (123) (275) Recoveries 1 — 1 — 274 1 — 2 279 Provision (benefit) (1) — (1) 80 (203) — — 121 (4) Balance, September 30, 2017 $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans: Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment 76,886 199,704 207,572 492,615 164,291 101,427 76,924 136,136 1,455,555 Total acquired non-credit impaired loans $ 76,886 $ 199,704 $ 207,572 $ 492,615 $ 164,291 $ 101,427 $ 76,924 $ 136,136 $ 1,455,555 Three Months Ended September 30, 2016 Allowance for loan losses: Balance at beginning of period $ — $ — $ — $ — $ — $ — $ — $ — $ — Charge-offs — — (3) — (105) (23) — (149) (280) Recoveries 1 — — 3 89 1 — 26 120 Provision (benefit) (1) — 3 (3) 16 22 — 123 160 Balance, September 30, 2016 $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans: Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment 10,683 35,775 29,444 435,132 168,758 14,201 43,152 148,512 885,657 Total acquired non-credit impaired loans $ 10,683 $ 35,775 $ 29,444 $ 435,132 $ 168,758 $ 14,201 $ 43,152 $ 148,512 $ 885,657 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 Total Nine Months Ended September 30, 2017 Allowance for loan losses: Balance, December 31, 2016 $ — $ — $ — $ — $ — $ — $ — $ — $ — Charge-offs — — — (89) (736) (3) — (337) (1,165) Recoveries 3 — 1 42 343 3 1 21 414 Provision (benefit) (3) — (1) 47 393 — (1) 316 751 Balance, September 30, 2017 $ — $ — $ — $ — $ — $ — $ — $ — $ — Nine Months Ended September 30, 2016 Allowance for loan losses: Balance, December 31, 2015 $ — $ — $ — $ — $ — $ — $ — $ — $ — Charge-offs — — (3) — (292) (30) — (485) (810) Recoveries 3 — — 9 197 3 1 49 262 Provision (benefit) (3) — 3 (9) 95 27 (1) 436 548 Balance, September 30, 2016 $ — $ — $ — $ — $ — $ — $ — $ — $ — The following tables present a disaggregated analysis of activity in the allowance for loan losses and loan balances for acquired credit impaired loans: Commercial Commercial Loans Greater Real Estate- Than or Equal Commercial Construction and Residential Commercial (Dollars in thousands) to $1 Million-CBT Real Estate Development Real Estate Consumer and Industrial Single Pay Total Three Months Ended September 30, 2017 Allowance for loan losses: Balance, June 30, 2017 $ — $ 40 $ 92 $ 2,741 $ 548 $ 320 $ — $ 3,741 Provision (benefit) for loan losses before benefit attributable to FDIC loss share agreements — (40) 133 184 (65) — 127 Benefit attributable to FDIC loss share agreements — — — — — — — — Total provision (benefit) for loan losses charged to operations — (40) 133 184 (65) — 127 Provision for loan losses recorded through the FDIC loss share receivable — — — — — — — — Reduction due to loan removals — — — Balance, September 30, 2017 $ — $ — $ 189 $ 2,776 $ 462 $ 243 $ — $ 3,670 Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment $ — $ — $ 189 $ 2,776 $ 462 $ 243 $ — $ 3,670 Loans:* Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment 8,439 199,082 46,248 249,666 53,302 25,796 — 582,533 Total acquired credit impaired loans $ 8,439 $ 199,082 $ 46,248 $ 249,666 $ 53,302 $ 25,796 $ — $ 582,533 Three Months Ended September 30, 2016 Allowance for loan losses: Balance , June 30, 2016 $ — $ 35 $ 151 $ 2,592 $ 778 $ 196 $ — $ 3,752 Provision (benefit) for loan losses before benefit attributable to FDIC loss share agreements — — — 2 (23) (2) — (23) Benefit attributable to FDIC loss share agreements — — — — — — — — Total provision (benefit) for loan losses charged to operations — — — 2 (23) (2) — (23) Provision for loan losses recorded through the FDIC loss share receivable — — — — — — — — Reduction due to loan removals — 5 (6) (102) (211) (12) — (326) Balance, September 30, 2016 $ — $ 40 $ 145 $ 2,492 $ 544 $ 182 $ — $ 3,403 Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment $ — $ 40 $ 145 $ 2,492 $ 544 $ 182 $ — $ 3,403 Loans:* Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment 10,958 220,489 47,081 268,968 61,866 26,658 — 636,020 Total acquired credit impaired loans $ 10,958 $ 220,489 $ 47,081 $ 268,968 $ 61,866 $ 26,658 $ — $ 636,020 Commercial Commercial Loans Greater Real Estate- Than or Equal Commercial Construction and Residential Commercial (Dollars in thousands) to $1 Million-CBT Real Estate Development Real Estate Consumer and Industrial Single Pay Total Nine Months Ended September 30, 2017 Allowance for loan losses: Balance, December 31, 2016 $ — $ 41 $ 139 $ 2,419 $ 558 $ 238 $ — $ 3,395 Provision (benefit) for loan losses before benefit attributable to FDIC loss share agreements — (40) 130 743 (85) 71 — 819 Benefit attributable to FDIC loss share agreements — — — — — — — — Total provision (benefit) for loan losses charged to operations — (40) 130 743 (85) 71 — 819 Provision (benefit) for loan losses recorded through the FDIC loss share receivable — — — — — — — — Reduction due to loan removals — (1) (80) (386) (11) (66) — (544) Balance, September 30, 2017 $ — $ — $ 189 $ 2,776 $ 462 $ 243 $ — $ 3,670 Nine Months Ended September 30, 2016 Allowance for loan losses: Balance, December 31, 2015 $ — $ 56 $ 177 $ 2,986 $ 313 $ 174 $ — $ 3,706 Provision (benefit) for loan losses before benefit attributable to FDIC loss share agreements — 1 — (178) 511 38 — 372 Benefit attributable to FDIC loss share agreements — — — 23 — — — 23 Total provision (benefit) for loan losses charged to operations — 1 — (155) 511 38 — 395 Provision for loan losses recorded through the FDIC loss share receivable — — — (23) — — — (23) Reduction due to loan removals — (16) (32) (316) (281) (30) — (675) Balance, September 30, 2016 $ — $ 41 $ 145 $ 2,492 $ 543 $ 182 $ — $ 3,403 *— 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 ongoing 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 loans for non-acquired loans: Construction & Development Commercial Non-owner Occupied Commercial Owner Occupied September 30, December 31, September 30, September 30, December 31, September 30, September 30, December 31, September 30, (Dollars in thousands) 2017 2016 2016 2017 2016 2016 2017 2016 2016 Pass $ 755,633 $ 567,398 $ 548,984 $ 939,125 $ 701,150 $ 615,521 $ 1,247,881 $ 1,149,417 $ 1,118,421 Special mention 7,445 8,421 8,492 8,475 11,434 11,499 24,277 22,133 26,429 Substandard 3,879 4,645 4,860 2,270 2,131 3,417 6,329 6,195 8,630 Doubtful — — — — — — — — — $ 766,957 $ 580,464 $ 562,336 $ 949,870 $ 714,715 $ 630,437 $ 1,278,487 $ 1,177,745 $ 1,153,480 Commercial & Industrial Other Income Producing Property Commercial Total September 30, December 31, September 30, September 30, December 31, September 30, September 30, December 31, September 30, 2017 2016 2016 2017 2016 2016 2017 2016 2016 Pass $ 770,975 $ 655,157 $ 604,058 $ 186,639 $ 167,025 $ 165,451 $ 3,900,253 $ 3,240,147 $ 3,052,435 Special mention 8,894 14,325 11,246 6,090 9,280 12,099 55,181 65,593 69,765 Substandard 1,888 1,916 2,221 1,606 1,933 2,045 15,972 16,820 21,173 Doubtful — — — — — — — — — $ 781,757 $ 671,398 $ 617,525 $ 194,335 $ 178,238 $ 179,595 $ 3,971,406 $ 3,322,560 $ 3,143,373 The following table presents the credit risk profile by risk grade of consumer loans for non-acquired loans: Consumer Owner Occupied Home Equity Consumer September 30, December 31, September 30, September 30, December 31, September 30, September 30, December 31, September 30, (Dollars in thousands) 2017 2016 2016 2017 2016 2016 2017 2016 2016 Pass $ 1,427,278 $ 1,167,768 $ 1,155,481 $ 405,945 $ 368,655 $ 349,382 $ 370,258 $ 322,654 $ 304,117 Special mention 14,914 15,283 14,370 7,346 8,145 8,493 316 468 611 Substandard 12,566 14,570 13,590 6,469 6,418 5,950 1,184 1,116 959 Doubtful — — — — — — — — — $ 1,454,758 $ 1,197,621 $ 1,183,441 $ 419,760 $ 383,218 $ 363,825 $ 371,758 $ 324,238 $ 305,687 Other Consumer Total September 30, 2017 December 31, 2016 September 30, 2016 September 30, 2017 December 31, 2016 September 30, 2016 Pass $ 12,645 $ 13,404 $ 11,787 $ 2,216,126 $ 1,872,481 $ 1,820,767 Special mention — — — 22,576 23,896 23,474 Substandard — — — 20,219 22,104 20,499 Doubtful — — — — — — $ 12,645 $ 13,404 $ 11,787 $ 2,258,921 $ 1,918,481 $ 1,864,740 The following table presents the credit risk profile by risk grade of total non-acquired loans: Total Non-acquired Loans September 30, December 31, September 30, (Dollars in thousands) 2017 2016 2016 Pass $ 6,116,379 $ 5,112,628 $ 4,873,202 Special mention 77,757 89,489 93,239 Substandard 36,191 38,924 41,672 Doubtful — — — $ 6,230,327 $ 5,241,041 $ 5,008,113 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 September 30, December 31, September 30, September 30, December 31, September 30, September 30, December 31, September 30, (Dollars in thousands) 2017 2016 2016 2017 2016 2016 2017 2016 2016 Pass $ 74,665 $ 8,997 $ 9,562 $ 195,808 $ 28,368 $ 29,509 $ 201,498 $ 26,920 $ 28,926 Special mention 1,403 253 278 3,806 6,171 6,173 4,048 — — Substandard 818 840 843 90 89 93 2,026 275 518 Doubtful — — — — — — — — — $ 76,886 $ 10,090 $ 10,683 $ 199,704 $ 34,628 $ 35,775 $ 207,572 $ 27,195 $ 29,444 Other Income Producing Commercial & Industrial Property Commercial Total September 30, December 31, September 30, September 30, December 31, September 30, September 30, December 31, September 30, 2017 2016 2016 2017 2016 2016 2017 2016 2016 Pass $ 95,523 $ 13,475 $ 14,016 $ 74,994 $ 38,361 $ 42,159 $ 642,488 $ 116,121 $ 124,172 Special mention 5,385 117 122 1,208 273 276 15,850 6,814 6,849 Substandard 519 49 63 722 708 717 4,175 1,961 2,234 Doubtful — — — — — — — — — $ 101,427 $ 13,641 $ 14,201 $ 76,924 $ 39,342 $ 43,152 $ 662,513 $ 124,896 $ 133,255 The following table presents the credit risk profile by risk grade of consumer loans for acquired

FDIC Indemnification Asset

FDIC Indemnification Asset	9 Months Ended
	Sep. 30, 2017
FDIC Indemnification Asset
FDIC Indemnification Asset	Note 7—FDIC Indemnification Asset The following table provides changes in FDIC indemnification asset: Nine Months Ended September 30, (Dollars in thousands) 2017 2016 Balance at beginning of period $ — $ 4,401 Decrease in expected losses on loans — (23) Additional recoveries on OREO — (1,736) Reimbursable expenses — 71 Amortization of discounts and premiums, net — (1,475) Payments to (from) FDIC — 853 Termination of Loss Share Agreements — (2,091) Balance at end of period $ — $ — 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 OREO totaled $3.0 million.

Other Real Estate Owned

Other Real Estate Owned	9 Months Ended
	Sep. 30, 2017
Other Real Estate Owned
Other Real Estate Owned	Note 8—Other Real Estate Owned The following is a summary of information pertaining to OREO: Nine Months Ended September 30, 2017 2016 Covered Covered (Dollars in thousands) OREO OREO Total OREO OREO Total Beginning balance $ 18,316 $ — $ 18,316 $ 24,803 $ 5,751 $ 30,554 Acquired in SBFC acquisition 385 — 385 — — — Additions 8,375 — 8,375 9,296 2,151 11,447 Transfers — — — 4,222 (4,222) — Writedowns (2,220) — (2,220) (1,939) (2,131) (4,070) Sold (11,329) — (11,329) (14,171) (1,549) (15,720) Ending Balance $ 13,527 $ — $ 13,527 $ 22,211 $ — $ 22,211 OREO previously classified as covered, which consisted of 17 properties with a carrying value of $4.2 million as of March 31, 2016, became uncovered during the second quarter of 2016 in connection with the Bank’s early termination agreement with the FDIC with respect to all of its outstanding loss share agreements At September 30, 2017, there were a total of 67 properties included in OREO. This compares to 108 properties included in OREO, at September 30, 2016. At September 30, 2017, the Company had $1.4 million in residential real estate included in OREO and $7.0 million in residential real estate consumer mortgage loans in the process of foreclosure. At December 31, 2016 and September 30, 2016, the Company had $3.6 million and $3.7 million, respectively, in residential real estate included in OREO and $5.1 million and $4.7 million, respectively, in residential real estate consumer mortgage loans in the process of foreclosure .

Deposits

Deposits	9 Months Ended
	Sep. 30, 2017
Deposits Disclosure Abstract
Deposits	Note 9 — Deposits The Company’s total deposits are comprised of the following: September 30, December 31, September 30, (Dollars in thousands) 2017 2016 2016 Certificates of deposit $ 1,083,814 $ 872,773 $ 911,453 Interest-bearing demand deposits 4,102,391 3,461,004 3,358,647 Non-interest bearing demand deposits 2,505,570 2,199,046 2,176,155 Savings deposits 1,363,944 799,615 795,754 Other time deposits 6,302 1,985 5,397 Total deposits $ 9,062,021 $ 7,334,423 $ 7,247,406 At September 30, 2017, December 31, 2016, and September 30, 2016, the Company had $187.5 million, $83.7 million, and $90.8 million in certificates of deposits of $250,000 and greater, respectively. At September 30, 2017, December 31, 2016, and September 30, 2016, the Company had $23.9 million, $2.9 million and $2.9 million, in traditional, out-of-market brokered deposits, respectively. The increase in certificates of deposits of $250,000 and greater and in out-of-market brokered deposits was primarily the result of deposits acquired through the merger with SBFC.

Retirement Plans

Retirement Plans	9 Months Ended
	Sep. 30, 2017
Retirement Plans
Retirement Plans	Note 10 — Retirement Plans The Company and the Bank provide certain retirement benefits to their employees in the form of a non-contributory defined benefit pension plan and an employees’ savings plan. The non-contributory defined benefit pension plan covers all employees hired on or before December 31, 2005, who have attained age 21, and who have completed a year of eligible service. Employees hired on or after January 1, 2006 are not eligible to participate in the non-contributory defined benefit pension plan, but are eligible to participate in the employees’ savings plan. On this date, a new benefit formula applies only to participants who have not attained age 45 or who do not have five years of service. 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 September 30, 2017. The components of net periodic pension expense recognized are as follows: Three Months Ended Nine Months Ended September 30, September 30, (Dollars in thousands) 2017 2016 2017 2016 Interest cost $ $ $ (843) $ (849) Expected return on plan assets 1,660 1,602 Recognized net actuarial loss (564) (612) Net periodic pension benefit $ $ $ 253 $ 141 The Company did not contribute to the pension plan for the three and nine months ended September 30, 2017, and does not expect to make any additional contributions during the remainder of 2017. The Company reserves the right to contribute between the minimum required and maximum deductible amounts as determined under applicable federal laws. Under the provisions of Internal Revenue Code Section 401(k), electing employees are eligible to participate in the employees’ savings plan after attaining age 21. Plan participants elect to contribute portions of their annual base compensation as a before tax contribution. 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 their salary. Employees are eligible for an additional 1% discretionary matching contribution contingent upon achievement of the Company’s annual financial goals and paid in the first quarter of the following year. The Company is offering the additional 1% discretionary matching contribution again in 2017 upon achievement of the Company’s 2017 financial goals. The Company expensed $2.1 million and $1.7 million for the 401(k) plan during the three months ended September 30, 2017 and 2016, respectively. The Company expensed $5.5 million and $4.5 million for the 401(k) plan during the nine months ended September 30, 2017 and 2016, respectively. 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.

Earnings Per Common Share

Earnings Per Common Share	9 Months Ended
	Sep. 30, 2017
Earnings Per Share
Earnings Per Share	Note 11 — Earnings Per Share Basic earnings per share are calculated by dividing net income by the weighted-average shares of common stock outstanding during each period, excluding non-vested shares. The Company’s diluted earnings per share are based on the weighted-average shares of common stock outstanding during each period plus the maximum dilutive effect of common stock issuable upon exercise of stock options or vesting of restricted shares. The weighted-average number of shares and equivalents are determined after giving retroactive effect to stock dividends and stock splits. The following table sets forth the computation of basic and diluted earnings per share: Three Months Ended Nine Months Ended September 30, September 30, (Dollars and shares in thousands, except for per share amounts) 2017 2016 2017 2016 Basic earnings per common share: Net income $ 35,046 $ 28,095 $ 85,133 $ 77,105 Weighted-average basic common shares 29,115 24,016 29,023 23,989 Basic earnings per common share $ 1.20 $ 1.17 $ 2.92 $ 3.21 Diluted earnings per share: Net income $ 35,046 $ 28,095 $ 85,133 $ 77,105 Weighted-average basic common shares 29,115 24,016 29,023 23,989 Effect of dilutive securities 270 262 268 240 Weighted-average dilutive shares 29,385 24,278 29,291 24,229 Diluted earnings per common share $ 1.19 $ 1.16 $ 2.90 $ 3.18 The calculation of diluted earnings per common share excludes outstanding stock options for which the results would have been anti-dilutive under the treasury stock method as follows: Three Months Ended September 30, Nine Months Ended September 30, (Dollars in thousands) 2017 2016 2017 2016 Number of shares Range of exercise prices $ to $ $ to $ $ to $ $ to $

Share-Based Compensation

Share-Based Compensation	9 Months Ended
	Sep. 30, 2017
Share-Based Compensation
Share-Based Compensation	Note 12 — Share-Based Compensation The Company’s 2004 and 2012 share-based compensation plans are long-term retention plans intended to attract, retain, and provide incentives for key employees and non-employee directors in the form of incentive and non-qualified stock options, restricted stock, and restricted stock units (“RSUs”). Stock Options With the exception of non-qualified stock options granted to directors under the 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 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 RSUs. 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. Weighted Weighted Average Aggregate Average Remaining Intrinsic Shares Price (Yrs.) (000's) Outstanding at January 1, 2017 246,535 $ 42.53 Granted 33,634 91.23 Exercised (29,030) 34.09 Outstanding at September 30, 2017 251,139 50.02 5.15 $ 10,094 Exercisable at September 30, 2017 181,152 39.84 3.87 $ 9,096 Weighted-average fair value of options granted during the year $ 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: Nine months ended September 30, Dividend yield % % Expected life years years Expected volatility % % Risk-free interest rate % % As of September 30, 2017, there was $1.5 million of total unrecognized compensation cost related to nonvested stock option grants under the plans. The cost is expected to be recognized over a weighted-average period of 1.38 years as of September 30, 2017. The total fair value of shares vested during the nine months ended September 30, 2017 was $578,000. Restricted Stock The Company from time-to-time 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 expenses, equal to the total value of such awards, ratably over the vesting period of the stock grants. Restricted stock 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. Nonvested restricted stock for the nine months ended September 30, 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 21,683 88.63 Vested (52,153) 47.82 Forfeited (1,000) 91.35 Nonvested at September 30, 2017 151,544 58.28 As of September 30, 2017, there was $4.9 million of total unrecognized compensation cost related to nonvested restricted stock granted under the plans. This cost is expected to be recognized over a weighted-average period of 2.23 years as of September 30, 2017. The total fair value of shares vested during the nine months ended September 30, 2017 was $2.6 million. Restricted Stock Units The Company from time-to-time also grants performance and discretionary 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. Discretionary RSUs are based upon prior performance and typically cliff-vest over four years from the grant date. Dividends are not paid in respect to the awards during the performance or the vesting 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 nine months ended September 30, 2017, the Company accrued for 90% of the RSUs granted, based on Management’s expectations of performance. Nonvested RSUs for the nine months ended September 30, 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 66,655 89.01 LTIP Adjustment (3,951) 63.93 Nonvested at September 30, 2017 170,580 75.27 As of September 30, 2017, there was $5.9 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 1.8 years as of September 30, 2017. The total fair value of RSUs vested during the nine months ended September 30, 2017 was $2.3 million. During the nine months ended September 30, 2017, 57,455 vested restricted stock units were issued to the participants in the 2014 Long-Term Incentive Plan.

Commitments and Contingent Liab

Commitments and Contingent Liabilities	9 Months Ended
	Sep. 30, 2017
Commitments and Contingent Liabilities
Commitments and Contingent Liabilities	Note 13 — Commitments and Contingent Liabilities In the normal course of business, the Company makes various commitments and incurs certain contingent liabilities, which are not reflected in the accompanying financial statements. The commitments and contingent liabilities include guarantees, commitments to extend credit, and standby letters of credit. At September 30, 2017, commitments to extend credit and standby letters of credit totaled $2.2 billion. The Company does not anticipate any material losses as a result of these transactions. 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.

Fair Value

Fair Value	9 Months Ended
	Sep. 30, 2017
Fair Value
Fair Value	Note 14 — Fair Value FASB ASC Topic 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 Topic 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, derivative contracts, and mortgage servicing rights (“MSRs”) 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 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 Topic 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 FHLB stock approximates fair value based on the redemption provisions. Mortgage Loans Held for Sale Mortgage loans held for sale are carried at fair 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 ALLL 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, 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 September 30, 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 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 ALLL. 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; accordingly, the derivatives are classified within Level 2 of the fair value hierarchy (see Note 16—Derivative Financial Instruments for additional information). Mortgage servicing rights 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) September 30, 2017: Assets Derivative financial instruments $ 1,492 $ — $ 1,492 $ — Loans held for sale 46,321 — 46,321 — Securities available for sale: Government-sponsored entities debt 85,951 — 85,951 — State and municipal obligations 204,294 — 204,294 — Mortgage-backed securities 1,027,477 — 1,027,477 — Corporate stocks 2,957 1,732 1,225 — Total securities available for sale 1,320,679 1,732 1,318,947 — Mortgage servicing rights 29,937 — — 29,937 $ 1,398,429 $ 1,732 $ 1,366,760 $ 29,937 Liabilities Derivative financial instruments $ 1,301 $ — $ 1,301 $ — 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 stocks 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 $ — September 30, 2016: Assets Derivative financial instruments $ 3,091 $ — $ 3,091 $ — Loans held for sale 57,052 — 57,052 — Securities available for sale: Government-sponsored entities debt $ 62,980 $ — $ 62,980 $ — State and municipal obligations 117,324 — 117,324 — Mortgage-backed securities 741,277 — 741,277 — Corporate stocks 3,793 2,568 1,225 — Total securities available for sale 925,374 2,568 922,806 — Mortgage servicing rights 23,064 — — 23,064 $ 1,008,581 $ 2,568 $ 982,949 $ 23,064 Liabilities Derivative financial instruments $ 1,100 $ — $ 1,100 $ — Changes in Level 1, 2 and 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. There were no changes in hierarchy classifications of Level 3 assets or liabilities for the nine months ended September 30, 2017. A reconciliation of the beginning and ending balances of Level 3 assets and liabilities recorded at fair value on a recurring basis for the nine months ended September 30, 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 4,764 — Changes in fair value due to valuation inputs or assumptions (1,055) — Changes in fair value due to decay (2,809) — Fair value , September 30, 2017 $ 29,937 $ — Fair value, January 1, 2016 $ 26,202 $ — Servicing assets that resulted from transfers of financial assets 4,182 — Changes in fair value due to valuation inputs or assumptions (4,305) — Changes in fair value due to decay (3,015) — Fair value, September 30, 2016 $ 23,064 $ — There were no unrealized losses included in accumulated other comprehensive income related to Level 3 financial assets and liabilities at September 30, 2017 or 2016. 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) September 30, 2017: OREO $ 13,527 $ — $ — $ 13,527 Non-acquired impaired loans 5,588 — — 5,588 December 31, 2016: OREO $ 18,316 $ — $ — $ 18,316 Non-acquired impaired loans 6,611 — — 6,611 September 30, 2016: OREO $ 22,211 $ — $ — $ 22,211 Non-acquired impaired loans 4,360 — — 4,360 Quantitative Information about Level 3 Fair Value Measurement Weighted Average September 30, December 31, September 30, Valuation Technique Unobservable Input 2017 2016 2016 Nonrecurring measurements: Non-acquired impaired loans Discounted appraisals Collateral discounts 3 % 6 % 7 % OREO Discounted appraisals Collateral discounts and estimated costs to sell 23 % 18 % 24 % 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 September 30, 2017, December 31, 2016 and September 30, 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 5—Investment Securities for additional information, as well as page 40 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. 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 September 30, 2017 Financial assets: Cash and cash equivalents $ 403,934 $ 403,934 $ 403,934 $ — $ — Investment securities 1,336,796 1,336,850 14,171 1,322,679 — Loans held for sale 46,321 46,321 — 46,321 — Loans, net of allowance for loan losses 8,223,204 8,284,002 — — 8,284,002 Accrued interest receivable 25,172 25,172 — 5,373 19,799 Mortgage servicing rights 29,937 29,937 — — 29,937 Interest rate swap - non-designated hedge 200 200 — 200 — Other derivative financial instruments (mortgage banking related) 1,292 1,292 — 1,292 — Financial liabilities: Deposits 9,062,021 8,512,681 — 8,512,681 — Federal funds purchased and securities sold under agreements to repurchase 291,099 291,099 — 291,099 — Other borrowings 83,307 85,344 — 85,344 — Accrued interest payable 1,810 1,810 — 1,810 — Interest rate swap - non-designated hedge 197 197 — 197 — Interest rate swap - cash flow hedge 329 329 — 329 — Other derivative financial instruments (mortgage banking related) 775 775 — 775 — Off balance sheet financial instruments: Commitments to extend credit — 15,968 — 15,968 — 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 — September 30, 2016 Financial assets: Cash and cash equivalents $ 507,517 $ 507,517 $ 507,517 $ — $ — Investment securities 941,707 941,932 12,050 929,882 — Loans held for sale 57,052 57,052 — 57,052 — Loans, net of allowance for loan losses 6,489,068 6,667,622 — — 6,667,622 Accrued interest receivable 17,501 17,501 — 3,528 13,973 Mortgage servicing rights 23,064 23,064 — — 23,064 Other derivative financial instruments (mortgage banking related) 3,091 3,091 — 3,091 — Financial liabilities: Deposits 7,247,406 7,015,012 — 7,015,012 — Federal funds purchased and securities sold under agreements to repurchase 305,268 305,268 — 305,268 — Other borrowings 55,306 49,781 — 49,781 — Accrued interest payable 1,384 1,384 — 1,384 — Interest rate swap - cash flow hedge — — Other derivative financial instruments (mortgage banking related) 444 444 — 444 — Off balance sheet financial instruments: Commitments to extend credit — 45,285 — 45,285 —

Accumulated Other Comprehensive

Accumulated Other Comprehensive Inocme (Loss)	9 Months Ended
	Sep. 30, 2017
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income (Loss)	Note 15 — Accumulated Other Comprehensive Income (Loss) The changes in each components 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 Three Months Ended September 30, 2017 Balance at June 30, 2017 $ (5,962) $ 2,506 $ (241) $ (3,697) Other comprehensive income before reclassifications — 80 3 83 Amounts reclassified from accumulated other comprehensive income (loss) 116 (325) 35 (174) Net comprehensive income (loss) 116 (245) 38 (91) Balance at September 30, 2017 $ (5,846) $ 2,261 $ (203) $ (3,788) Three Months Ended September 30, 2016 Balance at June 30, 2016 $ (5,762) $ 12,752 $ (480) $ 6,510 Other comprehensive income (loss) before reclassifications — (2,715) 32 (2,683) Amounts reclassified from accumulated other comprehensive income 126 — 42 168 Net comprehensive income (loss) 126 (2,715) 74 (2,515) Balance at September 30, 2016 $ (5,636) $ 10,037 $ (406) $ 3,995 Nine Months Ended September 30, 2017 Balance at December 31, 2016 $ (6,195) $ (1,708) $ (308) $ (8,211) Other comprehensive income (loss) before reclassifications — 4,362 (35) 4,327 Amounts reclassified from accumulated other comprehensive income (loss) 349 (393) 140 96 Net comprehensive income 349 3,969 105 4,423 Balance at September 30, 2017 $ (5,846) $ 2,261 $ (203) $ (3,788) Nine Months Ended September 30, 2016 Balance at December 31, 2015 $ (6,015) $ 2,588 $ (444) $ (3,871) Other comprehensive income (loss) before reclassifications — 7,524 (91) 7,433 Amounts reclassified from accumulated other comprehensive income (loss) 379 (75) 129 433 Net comprehensive income 379 7,449 38 7,866 Balance at September 30, 2016 $ (5,636) $ 10,037 $ (406) $ 3,995 The table below presents the reclassifications out of accumulated other comprehensive income (loss), net of tax: Amount Reclassified from Accumulated Other Comprehensive Income (Loss) (Dollars in thousands) For the Three Months Ended September 30, For the Nine Months Ended September 30, Accumulated Other Comprehensive Income (Loss) Component 2017 2016 2017 2016 Income Statement Line Item Affected Loss on cash flow hedges: Interest rate contracts $ 57 $ 69 $ 226 $ 209 Interest expense (22) (27) (86) (80) Provision for income taxes 35 42 140 129 Net income Gains on sales of available for sale securities: $ (1,278) $ — $ (1,388) $ (122) Securities gains, net 487 — 529 47 Provision for income taxes (791) — (859) (75) Net income Other-than-temporary impairment losses on available for sale securities: $ 753 $ — $ 753 $ — Other-than-temporary impairment losses (287) — (287) — Provision for income taxes 466 — 466 — Net income Amortization of defined benefit pension: Actuarial losses $ 188 $ 204 $ 564 $ 612 Salaries and employee benefits (72) (78) (215) (233) Provision for income taxes 116 126 349 379 Net income Total reclassifications for the period $ (640) $ 168 $ (370) $ 433

Derivative Financial Instrument

Derivative Financial Instruments	9 Months Ended
	Sep. 30, 2017
Derivative Financial Instruments
Derivative Financial Instruments	Note 16 — Derivative Financial Instruments Cash Flow Hedge of Interest Rate Risk The Company utilizes an 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 that effectively fixed 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 derivatives 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 of $38,000 and $105,000 for the three and nine months ended September 30, 2017, respectively. This compares to an unrealized gain of $74,000 and $38,000 for the three and nine months ended September 30, 2016, respectively. The Company recognized a $328,000 cash flow hedge liability in other liabilities on the balance sheet at September 30, 2017, compared to a $655,000 liability at September 30, 2016. There was no ineffectiveness in the cash flow hedge during the three and nine months ended September 30, 2017 and 2016. On January 3, 2017, the Company, through its merger with SBFC, acquired two forward starting interest rate swaps with a total notational amount of $10.0 million which was used to manage interest rate risk by SBFC on its $20.6 million in junior subordinated debt issued by capital trusts. Like the Company, SBFC was using the swaps to hedge the variable rate cash flows of subordinated debt against future interest rate increases by using an interest rate swap that effectively fixed the rate on the debt. The subordinated debt was paying interest at three month LIBOR plus 1.40% (2.36% at the time of the merger) while the interest rate swaps were providing a fixed rate of approximately 5.35% on $10.0 million of the junior subordinated debt. During the first quarter of 2017, the Company decided to terminate the interest rate swaps acquired through the merger with SBFC with an immaterial effect to net income. Credit risk related to the derivative arises when amounts receivable from the counterparty (derivatives dealer) exceed those payable. The Company controls the risk of loss by only transacting with derivatives 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 September 30, 2017 and 2016, the Company provided $450,000 and $750,000 of collateral, respectively, 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. Non-designated Hedges of Interest Rate Risk Customer Swap On December 28, 2016, the Company entered into two interest rate swap contracts that were classified as non-designated hedges and are not speculative in nature. One of the derivatives is an interest rate swap that was executed with a commercial borrower to facilitate a respective risk management strategy and allow the customer to pay a fixed rate of interest to the Company. This interest rate swap was simultaneously hedged by executing an offsetting interest rate swap that was entered into with a derivatives dealer to minimize the net risk exposure to the Company resulting from the transactions and allow the Company to receive a variable rate of interest. 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 September 30, 2017, the interest rate swaps had an aggregate notional amount of approximately $27.0 million and the fair value of the interest rate swap derivatives are recorded in other assets at $200,000 and in other liabilities at $197,000 for a net asset carrying value of $3,000, which was recorded through earnings. The fair value of the interest rate swap derivative with the derivatives dealer was in a net liability position of $197,000 at September 30, 2017 and the Company was required to provide $300,000 of collateral, which is included in cash and cash equivalents on the balance sheet as interest-bearing deposits with banks. Mortgage Banking The Company also has derivatives contracts that are classified as non-designated hedges. These derivatives contracts are a part of the Company’s risk management strategy for its mortgage banking activities. These instruments may include financial forwards, futures contracts, and options written and purchased, which are used to hedge MSRs; 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 MSRs 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 September 30, 2017, the Company had derivative financial instruments outstanding with notional amounts totaling $108.5 million related to MSRs, compared to $128.5 million on September 30, 2016. The estimated net fair value of the open contracts related to the MSRs was recorded as a loss of $775,000 at September 30, 2017, compared to a gain of $42,000 at September 30, 2016. Mortgage Pipeline 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. (Dollars in thousands) September 30, 2017 December 31, 2016 September 30, 2016 Mortgage loan pipeline $ 90,452 $ $ 155,747 Expected closures 116,810 Fair value of mortgage loan pipeline commitments 941 3,049 Forward sales commitments 89,593 146,000 Fair value of forward commitments (445)

Capital Ratios

Capital Ratios	9 Months Ended
	Sep. 30, 2017
Capital Ratios
Capital Ratios	Note 17 — Capital Ratios 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 raised 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 is also required to maintain a “capital conservation buffer” in addition to its minimum risk-based capital requirements. This buffer is required to consist solely of common equity Tier 1, and the buffer applies 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 September 30, 2017, December 31, 2016 and September 30, 2016 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 September 30, 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 September 30, 2017 Common equity Tier 1 to risk-weighted assets: Consolidated $ 1,013,065 12.11 % $ 480,973 5.75 % $ 585,532 7.00 % $ 543,709 6.50 % South State Bank (the Bank) 1,050,203 12.56 % 480,977 5.75 % 585,537 7.00 % 543,713 6.50 % Tier 1 capital to risk-weighted assets: Consolidated 1,084,145 12.96 % 606,444 7.25 % 711,004 8.50 % 669,180 8.00 % South State Bank (the Bank) 1,050,203 12.56 % 606,449 7.25 % 711,009 8.50 % 669,185 8.00 % Total capital to risk-weighted assets: Consolidated 1,129,742 13.51 % 773,739 9.25 % 878,299 10.50 % 836,475 10.00 % South State Bank (the Bank) 1,095,624 13.10 % 773,745 9.25 % 878,305 10.50 % 836,481 10.00 % Tier 1 capital to average assets (leverage ratio): Consolidated 1,084,145 10.34 % 419,265 4.00 % 419,265 4.00 % 524,082 5.00 % South State Bank (the Bank) 1,050,203 10.02 % 419,148 4.00 % 419,148 4.00 % 523,935 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 % September 30, 2016: Common equity Tier 1 to risk-weighted assets: Consolidated $ 765,032 11.48 % $ 341,538 5.125 % $ 466,491 7.00 % $ 433,170 6.50 % South State Bank (the Bank) 790,497 11.86 % 341,492 5.125 % 466,428 7.00 % 433,112 6.50 % Tier 1 capital to risk-weighted assets: Consolidated 817,746 12.27 % 441,500 6.625 % 566,453 8.50 % 533,132 8.00 % South State Bank (the Bank) 790,497 11.86 % 441,441 6.625 % 566,377 8.50 % 533,061 8.00 % Total capital to risk-weighted assets: Consolidated 858,813 12.89 % 574,783 8.625 % 699,736 10.50 % 666,415 10.00 % South State Bank (the Bank) 831,429 12.48 % 574,706 8.625 % 699,643 10.50 % 666,326 10.00 % Tier 1 capital to average assets (leverage ratio): Consolidated 817,746 9.74 % 335,972 4.00 % 335,972 4.00 % 419,964 5.00 % South State Bank (the Bank) 790,497 9.42 % 335,798 4.00 % 335,798 4.00 % 419,748 5.00 % As of September 30, 2017, December 31, 2016, and September 30, 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.

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	9 Months Ended
	Sep. 30, 2017
Goodwill and Other Intangible Assets
Goodwill and Other Intangible Assets	Note 18—Goodwill and Other Intangible Assets The carrying amount of goodwill was $597.2 million at September 30, 2017. The Company added $258.9 million in goodwill related to the SBFC merger during 2017. 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 Company added $18.1 million in core deposit intangible related to the SBFC merger. The following is a summary of gross carrying amounts and accumulated amortization of other intangible assets: September 30, December 31, September 30, (Dollars in thousands) 2017 2016 2016 Gross carrying amount $ 100,274 $ 82,154 $ 82,154 Accumulated amortization (49,802) (42,306) (40,416) $ 50,472 $ 39,848 $ 41,738 Amortization expense totaled $2.5 million and $7.5 million for the three and nine months ended September 30, 2017, respectively, compared to $1.9 million and $5.7 million for the three and nine months ended September 30, 2016, respectively. Other intangibles are amortized using either the straight-line method or an accelerated basis over their estimated useful lives, with lives generally between two and 15 years. Estimated amortization expense for other intangibles for each of the next five quarters is as follows: (Dollars in thousands) Quarter ending: December 31, 2017 $ 2,494 March 31, 2018 2,331 June 30, 2018 2,319 September 30, 2018 2,318 December 31, 2018 2,317 Thereafter 38,693 $ 50,472

Loan Servicing, Mortgage Origin

Loan Servicing, Mortgage Origination, and Loans Held for Sale	9 Months Ended
	Sep. 30, 2017
Loan Servicing, Mortgage Origination, and Loans Held for Sale
Loan Servicing, Mortgage Origination, and Loans Held for Sale	Note 19 — Loan Servicing, Mortgage Origination, and Loans Held for Sale As of September 30, 2017, December 31, 2016, and September 30, 2016, the portfolio of residential mortgages serviced for others, which is not included in the accompanying balance sheets, was $2.9 billion, $2.7 billion, and $2.7 billion, 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 three and nine months ended September 30, 2017 and September 30, 2016 was $1.8 million and $5.4 million, and $1.7 million and $5.1 million, respectively. Servicing fees are recorded in mortgage banking income in the Company’s consolidated statements of income. At September 30, 2017, December 31, 2016, and September 30, 2016, MSRs were $29.9 million, $29.0 million, and $23.1 million on the Company’s consolidated balance sheets, respectively. 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 three and nine months ended September 30, 2017 and September 30, 2016 were losses of $684,000 and $1.1 million, respectively, compared with a gain of $171,000 and a loss of $4.3 million, 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. See Note 14 — Fair Value for the changes in fair value of MSRs. The following table presents the changes in the fair value of the offsetting hedge. Three Months Ended Nine Months Ended (Dollars in thousands) September 30, 2017 September 30, 2016 September 30, 2017 September 30, 2016 Increase (decrease) in fair value of MSRs $ $ 171 $ $ (4,305) Decay of MSRs (1,245) (3,015) Gain (loss) related to derivatives $ $ (492) $ 1,010 $ 4,521 Net effect on statements of income $ $ (1,566) $ $ (2,799) 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 MSRs. 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 14 — Fair Value for additional information regarding fair value. The characteristics and sensitivity analysis of the MSRs are included in the following table. September 30, December 31, September 30, (Dollars in thousands) 2017 2016 2016 Composition of residential loans serviced for others Fixed-rate mortgage loans 99.7 % 99.6 % 99.5 % Adjustable-rate mortgage loans 0.3 % 0.4 % 0.5 % Total 100.0 % 100.0 % 100.0 % Weighted average life 7.38 years years 5.80 years Constant Prepayment rate (CPR) 8.3 % 7.7 % 12.3 % Weighted average discount rate 9.5 % 9.8 % 9.8 % Effect on fair value due to change in interest rates 25 basis point increase $ 1,605 $ 1,399 $ 2,093 50 basis point increase 2,934 2,557 3,968 25 basis point decrease (1,940) (1,713) (2,398) 50 basis point decrease (4,249) (3,670) (4,845) The sensitivity calculations in the previous table 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, 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 $28.4 million and $24.3 million at September 30, 2017 and September 30, 2016, respectively. Mandatory cash forwards and whole loan sales were $206.8 million and $565.1 million for the three and nine months ended September 30, 2017, respectively, compared to $215.2 million and $530.6 million for the three and nine months ended September 30, 2016, respectively. For the three and nine months ended September 30, 2017, $149.8 million and $424.0 million, or 72.4% and 75.0%, respectively, were sold with the servicing rights retained by the company, compared to $175.2 million and $418.8 million, or 81.4% and 78.9%, for the three and nine months ended September 30, 2016, respectively . 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. Loans held for sale, which consists primarily of residential mortgage loans to be sold in the secondary market, were $46.3 million, $50.6 million, and $57.1 million at September 30, 2017, December 31, 2016, and September 30, 2016, respectively.

Investments in Qualified Afford

Investments in Qualified Affordable Housing Projects	9 Months Ended
	Sep. 30, 2017
Investment In Qualified Affordable Housing Projects.
Investment in Qualified Affordable Housing Projects	Note 20 – 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 nine months ended September 30, 2017, tax credits and other tax benefits of $2.3 million and amortization of $1.8 million were recorded. For the nine months ended September 30, 2016, the Company recorded tax credits and other tax benefits of $1.8 million and amortization of $1.1 million. At September 30, 2017 and 2016, the Company’s carrying value of QAHPs was $32.0 million and $27.2 million, respectively, with an original investment of $40.8 million. The Company has $14.2 million and $14.7 million in remaining funding obligations related to these QAHPs recorded in liabilities at September 30, 2017 and 2016, respectively. None of the original investment will be repaid. The investment in QAHPs is being accounted for using the equity method.

Repurchase Agreements

Repurchase Agreements	9 Months Ended
	Sep. 30, 2017
Disclosure of Repurchase Agreements [Abstract]
Repurchase Agreements	Note 21 – Repurchase Agreements 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. Repurchase agreements are included in federal funds purchased and securities sold under agreements to repurchase on the condensed consolidated balance sheets. At September 30, 2017, December 31, 2016 and September 30, 2016, the Company's repurchase agreements totaled $240.2 million, $238.3 million, and $238.6 million, respectively. All of the Company’s repurchase agreements were overnight or continuous (until-further-notice) agreements at September 30, 2017, December 31, 2016 and September 30, 2016. These borrowings were collateralized with government, government-sponsored enterprise, or state and political subdivision-issued securities with a carrying value of $240.2 million, $238.3 million and $238.6 million at September 30, 2017, December 31, 2016 and September 30, 2016, respectively. Declines in the value of the collateral would require the Company to increase the amounts of securities pledged.

Subsequent Events

Subsequent Events	9 Months Ended
	Sep. 30, 2017
Subsequent Events
Subsequent Events	Note 22 – Subsequent Events On October 25, 2017, the Company held a special meeting of shareholders in Columbia, South Carolina. At the special meeting, the shareholders of the Company approved an amendment to South State’s Amended and Restated Articles of Incorporation to increase South State’s authorized shares of common stock from 40 million shares to 80 million shares (the “Amendment”). The Amendment had been previously approved by the South State board of directors on July 20, 2017, subject to shareholder approval. The Company has evaluated subsequent events for accounting and disclosure purposes through the date the financial statements are issued.

Summary of Significant Accoun31

Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2017
Summary of Significant Accounting Policies
Basis of Presentation	The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X.

Mergers and Acquisitions (Table

Mergers and Acquisitions (Tables)	9 Months Ended
	Sep. 30, 2017
SBFC
Mergers and Acquisitions
Schedule of assets acquired, liabilities assumed, and fair value of total consideration transferred	The following table presents the assets acquired and liabilities assumed as of January 3, 2017 and their initial and subsequent fair value estimates, as recorded by the Company. The Company has up to one year after the acquisition date to make subsequent fair value adjustments. Intial 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) — 23,207 Intangible assets 140 17,980 (d) — 18,120 OREO and repossessed assets 580 (30) (e) (165) (e) 385 Bank owned life insurance 44,513 — — 44,513 Deferred tax asset 16,247 (687) (f) 850 (f) 16,410 Other assets 7,545 (482) (g) — 7,063 Total assets $ 1,832,581 $ 2,131 $ 685 $ 1,835,397 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) (1,525) 176,220 Goodwill — 257,370 1,525 258,895 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 $30,749 based on the Company’s evaluation of the acquired loan portfolio and excludes the allowance for loan losses (“ALLL”) of $20,081 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 $18,120. (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 $2,149, netted with premium on certain Federal Home Loan Bank (“FHLB “) advances of $1,029. (i)—Adjustment reflects the fair value adjustments to employee benefit plans of $8,259 netted against an adjustment of other miscellaneous liabilities of $496.

Investment Securities (Tables)

Investment Securities (Tables)	9 Months Ended
	Sep. 30, 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 September 30, 2017: State and municipal obligations $ 3,678 $ 54 $ — $ 3,732 December 31, 2016: State and municipal obligations $ 6,094 $ 156 $ — $ 6,250 September 30, 2016: State and municipal obligations $ 6,851 $ 225 $ — $ 7,076
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 September 30, 2017: Government-sponsored entities debt* $ 86,521 $ 72 $ (642) $ 85,951 State and municipal obligations 199,898 4,584 (188) 204,294 Mortgage-backed securities** 1,027,827 4,673 (5,023) 1,027,477 Corporate stocks 2,781 176 — 2,957 $ 1,317,027 $ 9,505 $ (5,853) $ 1,320,679 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 stocks 3,658 473 (347) 3,784 $ 1,002,166 $ 5,847 $ (8,608) $ 999,405 September 30, 2016: Government-sponsored entities debt* $ 62,996 $ 20 $ (36) $ 62,980 State and municipal obligations 112,797 4,542 (15) 117,324 Mortgage-backed securities** 729,699 11,721 (143) 741,277 Corporate stocks 3,658 380 (245) 3,793 $ 909,150 $ 16,663 $ (439) $ 925,374 * - 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 September 30, 2017: Federal Home Loan Bank stock $ 10,177 $ — $ — $ 10,177 Investment in unconsolidated subsidiaries 2,262 — — 2,262 $ 12,439 $ — $ — $ 12,439 December 31, 2016: Federal Home Loan Bank stock $ 7,840 $ — $ — $ 7,840 Investment in unconsolidated subsidiaries 1,642 — — 1,642 $ 9,482 $ — $ — $ 9,482 September 30, 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 $ 2,225 $ 2,253 $ 12,023 $ 12,090 Due after one year through five years 1,153 1,179 109,509 110,127 Due after five years through ten years 300 300 275,960 278,021 Due after ten years — — 919,535 920,441 $ 3,678 $ 3,732 $ 1,317,027 $ 1,320,679
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 September 30, 2017: Securities Available for Sale Government-sponsored entities debt $ 473 $ 68,366 $ 169 $ 11,830 State and municipal obligations 188 21,851 — — Mortgage-backed securities 4,457 455,145 566 35,917 Corporate stocks — — — — $ 5,118 $ 545,362 $ 735 $ 47,747 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 stocks — — 347 1,395 $ 8,184 $ 688,376 $ 424 $ 3,453 September 30, 2016: Securities Available for Sale Government-sponsored entities debt $ 36 $ 11,962 $ — $ — State and municipal obligations 15 1,947 — — Mortgage-backed securities 106 56,023 37 2,325 Corporate stocks — — 245 1,496 $ 157 $ 69,932 $ 282 $ 3,821

Loans and Allowance for Loan 34

Loans and Allowance for Loan Losses (Tables)	9 Months Ended
	Sep. 30, 2017
Loans and Allowance for Loan Losses
Schedule of changes in the carrying value	The following are changes in the carrying value of acquired credit impaired loans: Nine Months Ended September 30, (Dollars in thousands) 2017 2016 Balance at beginning of period $ 602,546 $ 733,870 Fair value of acquired loans 55,850 — Net reductions for payments, foreclosures, and accretion (79,258) (101,556) Change in the allowance for loan losses on acquired loans (275) 303 Balance at end of period, net of allowance for loan losses on acquired loans $ 578,863 $ 632,617
Schedule of changes in allowance for loan losses	Non-acquired Acquired Non-Credit Acquired Credit (Dollars in thousands) Loans Impaired Loans Impaired Loans Total Three Months Ended September 30, 2017: Balance at beginning of period $ 40,149 $ — $ 3,741 $ 43,890 Loans charged-off (1,383) (275) — (1,658) Recoveries of loans previously charged off (1) 836 279 — 1,115 Net charge-offs (547) 4 — (543) Provision for loan losses charged to operations 1,939 (4) 127 2,062 Provision for loan losses recorded through the FDIC loss share receivable — — — — Reduction due to loan removals — — (198) (198) Balance at end of period $ 41,541 $ — $ 3,670 $ 45,211 Three Months Ended September 30, 2016: Balance at beginning of period $ 36,939 $ — $ 3,752 $ 40,691 Loans charged-off (1,108) (280) — (1,388) Recoveries of loans previously charged off (1) 713 120 — 833 Net charge-offs (395) (160) — (555) Provision 775 160 (23) 912 Benefit attributable to FDIC loss share agreements — — — — Provision for loan losses charged to operations 775 160 (23) 912 Provision for loan losses recorded through the FDIC loss share receivable — — — — Reduction due to loan removals — — (326) (326) Balance at end of period $ 37,319 $ — $ 3,403 $ 40,722 Non-acquired Acquired Non-Credit Acquired Credit (Dollars in thousands) Loans Impaired Loans Impaired Loans Total Nine Months Ended September 30, 2017: Balance at beginning of period $ 36,960 $ — $ 3,395 $ 40,355 Loans charged-off (3,972) (1,165) — (5,137) Recoveries of loans previously charged off (1) 2,041 414 — 2,455 Net charge-offs (1,931) (751) — (2,682) Provision 6,512 751 819 8,082 Benefit attributable to FDIC loss share agreements — — — — Total provision for loan losses charged to operations 6,512 751 819 8,082 Provision for loan losses recorded through the FDIC loss share receivable — — — — Reduction due to loan removals — — (544) (544) Balance at end of period $ 41,541 $ — $ 3,670 $ 45,211 Nine Months Ended September 30, 2016: Balance at beginning of period $ 34,090 $ — $ 3,706 $ 37,796 Loans charged-off (4,384) (810) — (5,194) Recoveries of loans previously charged off (1) 2,358 262 — 2,620 Net charge-offs (2,026) (548) — (2,574) Provision 5,255 548 372 6,175 Benefit attributable to FDIC loss share agreements — — 23 23 Total provision for loan losses charged to operations 5,255 548 395 6,198 Provision for loan losses recorded through the FDIC loss share receivable — — (23) (23) Reduction due to loan removals — — (675) (675) Balance at end of period $ 37,319 $ — $ 3,403 $ 40,722 (1) – Recoveries related to acquired credit impaired loans are recorded through other noninterest income on the consolidated statement of income and do not run through the ALLL.
Summary of information pertaining to impaired loans	Unpaid Recorded Gross Contractual Investment Recorded Total Principal With No Investment Recorded Related (Dollars in thousands) Balance Allowance With Allowance Investment Allowance September 30, 2017 Commercial real estate: Construction and land development $ 46,664 $ 954 $ 41,684 $ 42,638 $ 1,266 Commercial non-owner occupied 2,361 207 509 716 133 Commercial owner occupied 9,504 3,936 1,938 5,874 64 Consumer real estate: Consumer owner occupied 5,986 1,369 3,086 4,455 47 Home equity loans 3,184 716 1,907 2,623 116 Commercial and industrial 1,753 — 627 627 18 Other income producing property 4,334 — 3,605 3,605 211 Consumer 623 — 254 254 7 Other loans — — — — — Total $ 74,409 $ 7,182 $ 53,610 $ 60,792 $ 1,862 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 Other loans — — — — — Total $ 35,079 $ 7,736 $ 13,475 $ 21,211 $ 1,337 September 30, 2016 Commercial real estate: Construction and land development $ 7,744 $ 1,331 $ 2,100 $ 3,431 $ 359 Commercial non-owner occupied 2,372 228 536 764 181 Commercial owner occupied 10,204 4,301 2,051 6,352 65 Consumer real estate: Consumer owner occupied 4,390 1,284 1,843 3,127 58 Home equity loans 2,054 251 1,348 1,599 38 Commercial and industrial 2,738 259 1,194 1,453 385 Other income producing property 5,167 101 4,218 4,319 289 Consumer 342 — 142 142 4 Other — — — — — Total $ 35,011 $ 7,755 $ 13,432 $ 21,187 $ 1,379
Summary of average investment in impaired loans and interest income recognized on impaired loans	Three Months Ended September 30, 2017 2016 Average Average Investment in Interest Income Investment in Interest Income (Dollars in thousands) Impaired Loans Recognized Impaired Loans Recognized Commercial real estate: Construction and land development $ 36,337 $ 486 $ 3,762 $ 31 Commercial non-owner occupied 735 3 992 — Commercial owner occupied 5,964 63 6,662 150 Consumer real estate: Consumer owner occupied 4,515 36 3,547 31 Home equity loans 2,624 29 1,888 13 Commercial and industrial 912 8 1,110 16 Other income producing property 3,623 50 4,659 71 Consumer 245 2 135 — Other loans — — — — Total Impaired Loans $ 54,955 $ 677 $ 22,755 $ 312 Nine Months Ended September 30, 2017 2016 Average Average Investment in Interest Income Investment in Interest Income (Dollars in thousands) Impaired Loans Recognized Impaired Loans Recognized Commercial real estate: Construction and land development $ 22,835 $ 800 $ 4,856 $ 88 Commercial non-owner occupied 761 15 1,108 23 Commercial owner occupied 6,060 208 7,038 233 Consumer real estate: Consumer owner occupied 5,064 110 5,338 78 Home equity loans 2,148 75 954 43 Commercial and industrial 945 30 1,470 28 Other income producing property 2,989 153 4,605 157 Consumer 200 5 122 3 Other loans — — 211 — Total Impaired Loans $ 41,002 $ 1,396 $ 25,702 $ 653
SBFC
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	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 and non-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
Non-acquired loans
Loans and Allowance for Loan Losses
Summary of loans	September 30, December 31, September 30, (Dollars in thousands) 2017 2016 2016 Non-acquired loans: Commercial non-owner occupied real estate: Construction and land development $ 766,957 $ 580,464 $ 562,336 Commercial non-owner occupied 949,870 714,715 630,437 Total commercial non-owner occupied real estate 1,716,827 1,295,179 1,192,773 Consumer real estate: Consumer owner occupied 1,454,758 1,197,621 1,183,441 Home equity loans 419,760 383,218 363,825 Total consumer real estate 1,874,518 1,580,839 1,547,266 Commercial owner occupied real estate 1,278,487 1,177,745 1,153,480 Commercial and industrial 781,757 671,398 617,525 Other income producing property 194,335 178,238 179,595 Consumer 371,758 324,238 305,687 Other loans 12,645 13,404 11,787 Total non-acquired loans 6,230,327 5,241,041 5,008,113 Less allowance for loan losses (41,541) (36,960) (37,319) Non-acquired loans, net $ 6,188,786 $ 5,204,081 $ 4,970,794
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 Three Months Ended September 30, 2017 Allowance for loan losses: Balance, June 30, 2017 $ 5,746 $ 6,164 $ 7,539 $ 8,569 $ 3,247 $ 5,143 $ 1,379 $ 2,532 $ (170) $ 40,149 Charge-offs (19) — — — (17) (440) (10) (897) — (1,383) Recoveries 333 80 92 65 38 31 29 168 — 836 Provision (benefit) (88) (7) 479 492 (171) 469 (10) 889 (114) 1,939 Balance, September 30, 2017 $ 5,972 $ 6,237 $ 8,110 $ 9,126 $ 3,097 $ 5,203 $ 1,388 $ 2,692 $ (284) $ 41,541 Loans individually evaluated for impairment $ 1,266 $ 133 $ 64 $ 47 $ 116 $ 18 $ 211 $ 7 $ — $ 1,862 Loans collectively evaluated for impairment $ 4,706 $ 6,104 $ 8,046 $ 9,079 $ 2,981 $ 5,185 $ 1,177 $ 2,685 $ (284) $ 39,679 Loans: Loans individually evaluated for impairment $ 42,638 $ 716 $ 5,874 $ 4,455 $ 2,623 $ 627 $ 3,605 $ 254 $ — $ 60,792 Loans collectively evaluated for impairment 724,319 949,154 1,272,613 1,450,303 417,137 781,130 190,730 371,504 12,645 6,169,535 Total non-acquired loans $ 766,957 $ 949,870 $ 1,278,487 $ 1,454,758 $ 419,760 $ 781,757 $ 194,335 $ 371,758 $ 12,645 $ 6,230,327 Three Months Ended September 30, 2016 Allowance for loan losses: Balance , June 30, 2016 $ 4,665 $ 4,656 $ 8,003 $ 7,530 $ 3,148 $ 4,269 $ 1,812 $ 2,014 $ 842 $ 36,939 Charge-offs — — (16) (45) — (31) — (1,016) — (1,108) Recoveries 241 28 25 27 64 104 8 216 — 713 Provision (benefit) (795) (93) 516 338 69 368 (201) 1,094 (521) 775 Balance, September 30, 2016 $ 4,111 $ 4,591 $ 8,528 $ 7,850 $ 3,281 $ 4,710 $ 1,619 $ 2,308 $ 321 $ 37,319 Loans individually evaluated for impairment $ 359 $ 181 $ 65 $ 58 $ 38 $ 385 $ 289 $ 4 $ — $ 1,379 Loans collectively evaluated for impairment $ 3,752 $ 4,410 $ 8,463 $ 7,792 $ 3,243 $ 4,325 $ 1,330 $ 2,304 $ 321 $ 35,940 Loans: Loans individually evaluated for impairment $ 3,431 $ 764 $ 6,352 $ 3,127 $ 1,599 $ 1,453 $ 4,319 $ 142 $ — $ 21,187 Loans collectively evaluated for impairment 558,905 629,673 1,147,128 1,180,314 362,226 616,072 175,276 305,545 11,787 4,986,926 Total non-acquired loans $ 562,336 $ 630,437 $ 1,153,480 $ 1,183,441 $ 363,825 $ 617,525 $ 179,595 $ 305,687 $ 11,787 $ 5,008,113 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 Nine Months Ended September 30, 2017 Allowance for loan losses: Balance, December 31, 2016 $ 4,091 $ 4,980 $ 8,022 $ 7,820 $ 3,211 $ 4,842 $ 1,542 $ 2,350 $ 102 $ 36,960 Charge-offs (493) — — (185) (241) (629) (17) (2,407) — (3,972) Recoveries 555 128 197 141 133 264 77 546 — 2,041 Provision (benefit) 1,819 1,129 (109) 1,350 (6) 726 (214) 2,203 (386) 6,512 Balance, September 30, 2017 $ 5,972 $ 6,237 $ 8,110 $ 9,126 $ 3,097 $ 5,203 $ 1,388 $ 2,692 $ (284) $ 41,541 Nine Months Ended September 30, 2016 Allowance for loan losses: Balance, December 31, 2015 $ 4,116 $ 3,568 $ 8,341 $ 7,212 $ 2,929 $ 3,974 $ 1,963 $ 1,694 $ 293 $ 34,090 Charge-offs (159) — (117) (174) (767) (358) (7) (2,802) — (4,384) Recoveries 848 59 46 125 239 207 47 787 — 2,358 Provision (benefit) (694) 964 258 687 880 887 (384) 2,629 28 5,255 Balance, September 30, 2016 $ 4,111 $ 4,591 $ 8,528 $ 7,850 $ 3,281 $ 4,710 $ 1,619 $ 2,308 $ 321 $ 37,319
Schedule of credit risk profile by risk grade of loans	Total Non-acquired Loans September 30, December 31, September 30, (Dollars in thousands) 2017 2016 2016 Pass $ 6,116,379 $ 5,112,628 $ 4,873,202 Special mention 77,757 89,489 93,239 Substandard 36,191 38,924 41,672 Doubtful — — — $ 6,230,327 $ 5,241,041 $ 5,008,113
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 September 30, 2017 Commercial real estate: Construction and land development $ 728 $ 76 $ 483 $ 1,287 $ 765,670 $ 766,957 Commercial non-owner occupied 26 567 85 678 949,192 949,870 Commercial owner occupied 2,382 300 1,824 4,506 1,273,981 1,278,487 Consumer real estate: Consumer owner occupied 2,587 1,514 1,073 5,174 1,449,584 1,454,758 Home equity loans 841 416 1,361 2,618 417,142 419,760 Commercial and industrial 772 1,162 92 2,026 779,731 781,757 Other income producing property 76 100 252 428 193,907 194,335 Consumer 541 110 441 1,092 370,666 371,758 Other loans — — — — 12,645 12,645 $ 7,953 $ 4,245 $ 5,611 $ 17,809 $ 6,212,518 $ 6,230,327 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 September 30, 2016 Commercial real estate: Construction and land development $ 548 $ 249 $ 1,079 $ 1,876 $ 560,460 $ 562,336 Commercial non-owner occupied 655 768 207 1,630 628,807 630,437 Commercial owner occupied 1,795 71 1,267 3,133 1,150,347 1,153,480 Consumer real estate: Consumer owner occupied 1,549 894 1,682 4,125 1,179,316 1,183,441 Home equity loans 1,000 186 832 2,018 361,807 363,825 Commercial and industrial 229 739 674 1,642 615,883 617,525 Other income producing property 318 187 413 918 178,677 179,595 Consumer 286 430 302 1,018 304,669 305,687 Other loans — — — — 11,787 11,787 $ 6,380 $ 3,524 $ 6,456 $ 16,360 $ 4,991,753 $ 5,008,113
Non-acquired loans | Consumer
Loans and Allowance for Loan Losses
Schedule of credit risk profile by risk grade of loans	Consumer Owner Occupied Home Equity Consumer September 30, December 31, September 30, September 30, December 31, September 30, September 30, December 31, September 30, (Dollars in thousands) 2017 2016 2016 2017 2016 2016 2017 2016 2016 Pass $ 1,427,278 $ 1,167,768 $ 1,155,481 $ 405,945 $ 368,655 $ 349,382 $ 370,258 $ 322,654 $ 304,117 Special mention 14,914 15,283 14,370 7,346 8,145 8,493 316 468 611 Substandard 12,566 14,570 13,590 6,469 6,418 5,950 1,184 1,116 959 Doubtful — — — — — — — — — $ 1,454,758 $ 1,197,621 $ 1,183,441 $ 419,760 $ 383,218 $ 363,825 $ 371,758 $ 324,238 $ 305,687 Other Consumer Total September 30, 2017 December 31, 2016 September 30, 2016 September 30, 2017 December 31, 2016 September 30, 2016 Pass $ 12,645 $ 13,404 $ 11,787 $ 2,216,126 $ 1,872,481 $ 1,820,767 Special mention — — — 22,576 23,896 23,474 Substandard — — — 20,219 22,104 20,499 Doubtful — — — — — — $ 12,645 $ 13,404 $ 11,787 $ 2,258,921 $ 1,918,481 $ 1,864,740
Non-acquired loans | Commercial
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 September 30, December 31, September 30, September 30, December 31, September 30, September 30, December 31, September 30, (Dollars in thousands) 2017 2016 2016 2017 2016 2016 2017 2016 2016 Pass $ 755,633 $ 567,398 $ 548,984 $ 939,125 $ 701,150 $ 615,521 $ 1,247,881 $ 1,149,417 $ 1,118,421 Special mention 7,445 8,421 8,492 8,475 11,434 11,499 24,277 22,133 26,429 Substandard 3,879 4,645 4,860 2,270 2,131 3,417 6,329 6,195 8,630 Doubtful — — — — — — — — — $ 766,957 $ 580,464 $ 562,336 $ 949,870 $ 714,715 $ 630,437 $ 1,278,487 $ 1,177,745 $ 1,153,480 Commercial & Industrial Other Income Producing Property Commercial Total September 30, December 31, September 30, September 30, December 31, September 30, September 30, December 31, September 30, 2017 2016 2016 2017 2016 2016 2017 2016 2016 Pass $ 770,975 $ 655,157 $ 604,058 $ 186,639 $ 167,025 $ 165,451 $ 3,900,253 $ 3,240,147 $ 3,052,435 Special mention 8,894 14,325 11,246 6,090 9,280 12,099 55,181 65,593 69,765 Substandard 1,888 1,916 2,221 1,606 1,933 2,045 15,972 16,820 21,173 Doubtful — — — — — — — — — $ 781,757 $ 671,398 $ 617,525 $ 194,335 $ 178,238 $ 179,595 $ 3,971,406 $ 3,322,560 $ 3,143,373
Acquired credit impaired loans
Loans and Allowance for Loan Losses
Summary of loans	September 30, December 31, September 30, (Dollars in thousands) 2017 2016 2016 FASB ASC Topic 310-30 acquired loans: Commercial loans greater than or equal to $1 million-Community Bank & Trust ("CBT") $ 8,439 $ 8,617 $ 10,958 Commercial real estate 199,082 210,204 220,489 Commercial real estate—construction and development 46,248 44,373 47,081 Residential real estate 249,666 258,100 268,968 Consumer 53,302 59,300 61,866 Commercial and industrial 25,796 25,347 26,658 Total FASB ASC Topic 310-30 acquired loans 582,533 605,941 636,020 Less allowance for loan losses (3,670) (3,395) (3,403) FASB ASC Topic 310-30 acquired loans, net $ 578,863 $ 602,546 $ 632,617
Schedule of contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting carrying values	September 30, December 31, September 30, (Dollars in thousands) 2017 2016 2016 Contractual principal and interest $ 741,268 $ 778,822 $ 822,340 Non-accretable difference (26,160) (17,502) (22,222) Cash flows expected to be collected 715,108 761,320 800,118 Accretable yield (132,575) (155,379) (164,098) Carrying value $ 582,533 $ 605,941 $ 636,020 Allowance for acquired loan losses $ (3,670) $ (3,395) $ (3,403)
Schedule of refined accretable yield balance	Nine Months Ended September 30, (Dollars in thousands) 2017 2016 Balance at beginning of period $ 155,379 $ 201,538 Addition from the SBFC acquisition 4,603 — Accretion (43,873) (56,850) Reclass of nonaccretable difference due to improvement in expected cash flows 16,772 18,631 Other changes, net (306) 779 Balance at end of period $ 132,575 $ 164,098
Schedule of changes in allowance for loan losses	Commercial Commercial Loans Greater Real Estate- Than or Equal Commercial Construction and Residential Commercial (Dollars in thousands) to $1 Million-CBT Real Estate Development Real Estate Consumer and Industrial Single Pay Total Three Months Ended September 30, 2017 Allowance for loan losses: Balance, June 30, 2017 $ — $ 40 $ 92 $ 2,741 $ 548 $ 320 $ — $ 3,741 Provision (benefit) for loan losses before benefit attributable to FDIC loss share agreements — (40) 133 184 (65) — 127 Benefit attributable to FDIC loss share agreements — — — — — — — — Total provision (benefit) for loan losses charged to operations — (40) 133 184 (65) — 127 Provision for loan losses recorded through the FDIC loss share receivable — — — — — — — — Reduction due to loan removals — — — Balance, September 30, 2017 $ — $ — $ 189 $ 2,776 $ 462 $ 243 $ — $ 3,670 Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment $ — $ — $ 189 $ 2,776 $ 462 $ 243 $ — $ 3,670 Loans:* Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment 8,439 199,082 46,248 249,666 53,302 25,796 — 582,533 Total acquired credit impaired loans $ 8,439 $ 199,082 $ 46,248 $ 249,666 $ 53,302 $ 25,796 $ — $ 582,533 Three Months Ended September 30, 2016 Allowance for loan losses: Balance , June 30, 2016 $ — $ 35 $ 151 $ 2,592 $ 778 $ 196 $ — $ 3,752 Provision (benefit) for loan losses before benefit attributable to FDIC loss share agreements — — — 2 (23) (2) — (23) Benefit attributable to FDIC loss share agreements — — — — — — — — Total provision (benefit) for loan losses charged to operations — — — 2 (23) (2) — (23) Provision for loan losses recorded through the FDIC loss share receivable — — — — — — — — Reduction due to loan removals — 5 (6) (102) (211) (12) — (326) Balance, September 30, 2016 $ — $ 40 $ 145 $ 2,492 $ 544 $ 182 $ — $ 3,403 Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment $ — $ 40 $ 145 $ 2,492 $ 544 $ 182 $ — $ 3,403 Loans:* Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment 10,958 220,489 47,081 268,968 61,866 26,658 — 636,020 Total acquired credit impaired loans $ 10,958 $ 220,489 $ 47,081 $ 268,968 $ 61,866 $ 26,658 $ — $ 636,020 Commercial Commercial Loans Greater Real Estate- Than or Equal Commercial Construction and Residential Commercial (Dollars in thousands) to $1 Million-CBT Real Estate Development Real Estate Consumer and Industrial Single Pay Total Nine Months Ended September 30, 2017 Allowance for loan losses: Balance, December 31, 2016 $ — $ 41 $ 139 $ 2,419 $ 558 $ 238 $ — $ 3,395 Provision (benefit) for loan losses before benefit attributable to FDIC loss share agreements — (40) 130 743 (85) 71 — 819 Benefit attributable to FDIC loss share agreements — — — — — — — — Total provision (benefit) for loan losses charged to operations — (40) 130 743 (85) 71 — 819 Provision (benefit) for loan losses recorded through the FDIC loss share receivable — — — — — — — — Reduction due to loan removals — (1) (80) (386) (11) (66) — (544) Balance, September 30, 2017 $ — $ — $ 189 $ 2,776 $ 462 $ 243 $ — $ 3,670 Nine Months Ended September 30, 2016 Allowance for loan losses: Balance, December 31, 2015 $ — $ 56 $ 177 $ 2,986 $ 313 $ 174 $ — $ 3,706 Provision (benefit) for loan losses before benefit attributable to FDIC loss share agreements — 1 — (178) 511 38 — 372 Benefit attributable to FDIC loss share agreements — — — 23 — — — 23 Total provision (benefit) for loan losses charged to operations — 1 — (155) 511 38 — 395 Provision for loan losses recorded through the FDIC loss share receivable — — — (23) — — — (23) Reduction due to loan removals — (16) (32) (316) (281) (30) — (675) Balance, September 30, 2016 $ — $ 41 $ 145 $ 2,492 $ 543 $ 182 $ — $ 3,403 *— 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 Loans Greater Commercial Real Estate— Than or Equal to Construction and $1 million-CBT Commercial Real Estate Development September 30, December 31, September 30, September 30, December 31, September 30, September 30, December 31, September 30, (Dollars in thousands) 2017 2016 2016 2017 2016 2016 2017 2016 2016 Pass $ 8,120 $ 8,297 $ 9,616 $ 152,305 $ 162,870 $ 164,737 $ 26,666 $ 21,150 $ 20,889 Special mention — — 1,000 22,638 26,238 32,081 6,455 12,643 14,092 Substandard 319 320 342 24,139 21,096 23,671 13,127 10,580 12,100 Doubtful — — — — — — — — — $ 8,439 $ 8,617 $ 10,958 $ 199,082 $ 210,204 $ 220,489 $ 46,248 $ 44,373 $ 47,081 Residential Real Estate Consumer Commercial & Industrial September 30, December 31, September 30, September 30, December 31, September 30, September 30, December 31, September 30, 2017 2016 2016 2017 2016 2016 2017 2016 2016 Pass $ 133,969 $ 138,343 $ 143,946 $ 8,261 $ 8,513 $ 9,072 $ 15,755 $ 17,371 $ 18,715 Special mention 50,488 52,546 54,597 17,733 19,685 20,635 1,397 4,614 4,476 Substandard 65,209 67,211 70,425 27,308 31,102 32,159 8,644 3,362 3,467 Doubtful — — — — — — — — — $ 249,666 $ 258,100 $ 268,968 $ 53,302 $ 59,300 $ 61,866 $ 25,796 $ 25,347 $ 26,658 Total Acquired Credit Impaired Loans September 30, December 31, September 30, 2017 2016 2016 Pass $ 345,076 $ 356,544 $ 366,975 Special mention 98,711 115,726 126,881 Substandard 138,746 133,671 142,164 Doubtful — — — $ 582,533 $ 605,941 $ 636,020
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 September 30, 2017 Commercial loans greater than or equal to $1 million-CBT $ — $ — $ — $ — $ 8,439 $ 8,439 Commercial real estate 2,018 404 1,427 3,849 195,233 199,082 Commercial real estate—construction and development 22 234 3,239 3,495 42,753 46,248 Residential real estate 3,608 2,750 7,148 13,506 236,160 249,666 Consumer 670 259 943 1,872 51,430 53,302 Commercial and industrial 314 571 361 1,246 24,550 25,796 $ 6,632 $ 4,218 $ 13,118 $ 23,968 $ 558,565 $ 582,533 December 31, 2016 Commercial loans greater than or equal to $1 million-CBT $ — $ — $ — $ — $ 8,617 $ 8,617 Commercial real estate 573 357 2,667 3,597 206,607 210,204 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 September 30, 2016 Commercial loans greater than or equal to $1 million-CBT $ — $ — $ — $ — $ 10,958 $ 10,958 Commercial real estate 896 238 2,813 3,947 216,542 220,489 Commercial real estate—construction and development 266 1,971 1,137 3,374 43,707 47,081 Residential real estate 4,260 2,015 5,717 11,992 256,976 268,968 Consumer 1,124 332 1,233 2,689 59,177 61,866 Commercial and industrial 10 30 637 677 25,981 26,658 $ 6,556 $ 4,586 $ 11,537 $ 22,679 $ 613,341 $ 636,020
Non acquired non-accrual loans
Loans and Allowance for Loan Losses
Summary of information pertaining to nonaccrual loans by class	September 30, December 31, September 30, (Dollars in thousands) 2017 2016 2016 Commercial non-owner occupied real estate: Construction and land development $ 57 $ 672 $ 1,156 Commercial non-owner occupied 2,755 578 601 Total commercial non-owner occupied real estate 2,812 1,250 1,757 Consumer real estate: Consumer owner occupied 3,674 5,711 5,048 Home equity loans 308 1,629 1,564 Total consumer real estate 3,982 7,340 6,612 Commercial owner occupied real estate 557 2,189 2,049 Commercial and industrial 1,952 420 587 Other income producing property 1,083 356 584 Consumer 1,123 930 796 Restructured loans 858 1,979 2,499 Total loans on nonaccrual status $ 12,367 $ 14,464 $ 14,884
Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Summary of loans	September 30, December 31, September 30, (Dollars in thousands) 2017 2016 2016 FASB ASC Topic 310-20 acquired loans: Commercial non-owner occupied real estate: Construction and land development $ 76,886 $ 10,090 $ 10,683 Commercial non-owner occupied 199,704 34,628 35,775 Total commercial non-owner occupied real estate 276,590 44,718 46,458 Consumer real estate: Consumer owner occupied 492,615 408,270 435,132 Home equity loans 164,291 160,879 168,758 Total consumer real estate 656,906 569,149 603,890 Commercial owner occupied real estate 207,572 27,195 29,444 Commercial and industrial 101,427 13,641 14,201 Other income producing property 76,924 39,342 43,152 Consumer 136,136 142,654 148,512 Total FASB ASC Topic 310-20 acquired loans $ 1,455,555 $ 836,699 $ 885,657
Schedule of changes in allowance for loan losses	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 Total Three Months Ended September 30, 2017 Allowance for loan losses: Balance at beginning of period $ — $ — $ — $ — $ — $ — $ — $ — $ — Charge-offs — — — (80) (71) (1) — (123) (275) Recoveries 1 — 1 — 274 1 — 2 279 Provision (benefit) (1) — (1) 80 (203) — — 121 (4) Balance, September 30, 2017 $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans: Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment 76,886 199,704 207,572 492,615 164,291 101,427 76,924 136,136 1,455,555 Total acquired non-credit impaired loans $ 76,886 $ 199,704 $ 207,572 $ 492,615 $ 164,291 $ 101,427 $ 76,924 $ 136,136 $ 1,455,555 Three Months Ended September 30, 2016 Allowance for loan losses: Balance at beginning of period $ — $ — $ — $ — $ — $ — $ — $ — $ — Charge-offs — — (3) — (105) (23) — (149) (280) Recoveries 1 — — 3 89 1 — 26 120 Provision (benefit) (1) — 3 (3) 16 22 — 123 160 Balance, September 30, 2016 $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans: Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment 10,683 35,775 29,444 435,132 168,758 14,201 43,152 148,512 885,657 Total acquired non-credit impaired loans $ 10,683 $ 35,775 $ 29,444 $ 435,132 $ 168,758 $ 14,201 $ 43,152 $ 148,512 $ 885,657 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 Total Nine Months Ended September 30, 2017 Allowance for loan losses: Balance, December 31, 2016 $ — $ — $ — $ — $ — $ — $ — $ — $ — Charge-offs — — — (89) (736) (3) — (337) (1,165) Recoveries 3 — 1 42 343 3 1 21 414 Provision (benefit) (3) — (1) 47 393 — (1) 316 751 Balance, September 30, 2017 $ — $ — $ — $ — $ — $ — $ — $ — $ — Nine Months Ended September 30, 2016 Allowance for loan losses: Balance, December 31, 2015 $ — $ — $ — $ — $ — $ — $ — $ — $ — Charge-offs — — (3) — (292) (30) — (485) (810) Recoveries 3 — — 9 197 3 1 49 262 Provision (benefit) (3) — 3 (9) 95 27 (1) 436 548 Balance, September 30, 2016 $ — $ — $ — $ — $ — $ — $ — $ — $ —
Schedule of credit risk profile by risk grade of loans	Total Acquired Non-credit Impaired Loans September 30, December 31, September 30, (Dollars in thousands) 2017 2016 2016 Pass $ 1,417,304 $ 812,320 $ 860,150 Special mention 24,570 13,355 14,066 Substandard 13,681 11,024 11,441 Doubtful — — — $ 1,455,555 $ 836,699 $ 885,657
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 September 30, 2017 Commercial real estate: Construction and land development $ 117 $ 199 $ 225 $ 541 $ 76,345 $ 76,886 Commercial non-owner occupied 618 — — 618 199,086 199,704 Commercial owner occupied 330 97 893 1,320 206,252 207,572 Consumer real estate: Consumer owner occupied 1,404 535 761 2,700 489,915 492,615 Home equity loans 1,240 455 999 2,694 161,597 164,291 Commercial and industrial 749 464 98 1,311 100,116 101,427 Other income producing property 164 64 37 265 76,659 76,924 Consumer 364 814 620 1,798 134,338 136,136 $ 4,986 $ 2,628 $ 3,633 $ 11,247 $ 1,444,308 $ 1,455,555 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 September 30, 2016 Commercial real estate: Construction and land development $ 5 $ — $ 160 $ 165 $ 10,518 $ 10,683 Commercial non-owner occupied — 28 — 28 35,747 35,775 Commercial owner occupied 326 110 302 738 28,706 29,444 Consumer real estate: Consumer owner occupied 140 417 221 778 434,354 435,132 Home equity loans 719 207 921 1,847 166,911 168,758 Commercial and industrial 38 — — 38 14,163 14,201 Other income producing property 26 — — 26 43,126 43,152 Consumer 409 97 549 1,055 147,457 148,512 $ 1,663 $ 859 $ 2,153 $ 4,675 $ 880,982 $ 885,657
Summary of information pertaining to nonaccrual loans by class	September 30, December 31, September 30, (Dollars in thousands) 2017 2016 2016 Commercial non-owner occupied real estate: Construction and land development $ 233 $ $ 235 Commercial non-owner occupied — — — Total commercial non-owner occupied real estate 233 235 Consumer real estate: Consumer owner occupied 1,891 1,112 Home equity loans 1,813 1,588 Total consumer real estate 3,704 2,700 Commercial owner occupied real estate — 302 Commercial and industrial 114 1 Other income producing property 107 149 Consumer 1,299 1,246 Total loans on nonaccrual status $ 5,457 $ $ 4,633
Acquired non-credit impaired loans | Commercial
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 September 30, December 31, September 30, September 30, December 31, September 30, September 30, December 31, September 30, (Dollars in thousands) 2017 2016 2016 2017 2016 2016 2017 2016 2016 Pass $ 74,665 $ 8,997 $ 9,562 $ 195,808 $ 28,368 $ 29,509 $ 201,498 $ 26,920 $ 28,926 Special mention 1,403 253 278 3,806 6,171 6,173 4,048 — — Substandard 818 840 843 90 89 93 2,026 275 518 Doubtful — — — — — — — — — $ 76,886 $ 10,090 $ 10,683 $ 199,704 $ 34,628 $ 35,775 $ 207,572 $ 27,195 $ 29,444 Other Income Producing Commercial & Industrial Property Commercial Total September 30, December 31, September 30, September 30, December 31, September 30, September 30, December 31, September 30, 2017 2016 2016 2017 2016 2016 2017 2016 2016 Pass $ 95,523 $ 13,475 $ 14,016 $ 74,994 $ 38,361 $ 42,159 $ 642,488 $ 116,121 $ 124,172 Special mention 5,385 117 122 1,208 273 276 15,850 6,814 6,849 Substandard 519 49 63 722 708 717 4,175 1,961 2,234 Doubtful — — — — — — — — — $ 101,427 $ 13,641 $ 14,201 $ 76,924 $ 39,342 $ 43,152 $ 662,513 $ 124,896 $ 133,255
Acquired non-credit impaired loans | Consumer
Loans and Allowance for Loan Losses
Schedule of credit risk profile by risk grade of loans	Consumer Owner Occupied Home Equity Consumer September 30, December 31, September 30, September 30, December 31, September 30, September 30, December 31, September 30, (Dollars in thousands) 2017 2016 2016 2017 2016 2016 2017 2016 2016 Pass $ 487,393 $ 404,761 $ 431,712 $ 154,461 $ 151,752 $ 158,672 $ 132,962 $ 139,686 $ 145,594 Special mention 2,502 1,326 759 5,077 4,113 5,340 1,141 1,102 1,118 Substandard 2,720 2,183 2,661 4,753 5,014 4,746 2,033 1,866 1,800 Doubtful — — — — — — — — — $ 492,615 $ 408,270 $ 435,132 $ 164,291 $ 160,879 $ 168,758 $ 136,136 $ 142,654 $ 148,512 Consumer Total September 30, December 31, September 30, 2017 2016 2016 Pass $ 774,816 $ 696,199 $ 735,978 Special mention 8,720 6,541 7,217 Substandard 9,506 9,063 9,207 Doubtful — — — $ 793,042 $ 711,803 $ 752,402

FDIC Indemnification Asset (Tab

FDIC Indemnification Asset (Tables)	9 Months Ended
	Sep. 30, 2017
FDIC Indemnification Asset
Schedule of changes in FDIC indemnification asset	Nine Months Ended September 30, (Dollars in thousands) 2017 2016 Balance at beginning of period $ — $ 4,401 Decrease in expected losses on loans — (23) Additional recoveries on OREO — (1,736) Reimbursable expenses — 71 Amortization of discounts and premiums, net — (1,475) Payments to (from) FDIC — 853 Termination of Loss Share Agreements — (2,091) Balance at end of period $ — $ —

Other Real Estate Owned (Tables

Other Real Estate Owned (Tables)	9 Months Ended
	Sep. 30, 2017
Other Real Estate Owned
Schedule of information pertaining to OREO	The following is a summary of information pertaining to OREO: Nine Months Ended September 30, 2017 2016 Covered Covered (Dollars in thousands) OREO OREO Total OREO OREO Total Beginning balance $ 18,316 $ — $ 18,316 $ 24,803 $ 5,751 $ 30,554 Acquired in SBFC acquisition 385 — 385 — — — Additions 8,375 — 8,375 9,296 2,151 11,447 Transfers — — — 4,222 (4,222) — Writedowns (2,220) — (2,220) (1,939) (2,131) (4,070) Sold (11,329) — (11,329) (14,171) (1,549) (15,720) Ending Balance $ 13,527 $ — $ 13,527 $ 22,211 $ — $ 22,211

Deposits (Tables)

Deposits (Tables)	9 Months Ended
	Sep. 30, 2017
Deposits Disclosure Abstract
Schedule of total deposits	September 30, December 31, September 30, (Dollars in thousands) 2017 2016 2016 Certificates of deposit $ 1,083,814 $ 872,773 $ 911,453 Interest-bearing demand deposits 4,102,391 3,461,004 3,358,647 Non-interest bearing demand deposits 2,505,570 2,199,046 2,176,155 Savings deposits 1,363,944 799,615 795,754 Other time deposits 6,302 1,985 5,397 Total deposits $ 9,062,021 $ 7,334,423 $ 7,247,406

Retirement Plans (Tables)

Retirement Plans (Tables)	9 Months Ended
	Sep. 30, 2017
Retirement Plans
Schedule of components of net periodic pension expense	Three Months Ended Nine Months Ended September 30, September 30, (Dollars in thousands) 2017 2016 2017 2016 Interest cost $ $ $ (843) $ (849) Expected return on plan assets 1,660 1,602 Recognized net actuarial loss (564) (612) Net periodic pension benefit $ $ $ 253 $ 141

Earnings Per Common Share (Tabl

Earnings Per Common Share (Tables)	9 Months Ended
	Sep. 30, 2017
Earnings Per Share
Schedule of computation of basic and diluted earnings per share	Three Months Ended Nine Months Ended September 30, September 30, (Dollars and shares in thousands, except for per share amounts) 2017 2016 2017 2016 Basic earnings per common share: Net income $ 35,046 $ 28,095 $ 85,133 $ 77,105 Weighted-average basic common shares 29,115 24,016 29,023 23,989 Basic earnings per common share $ 1.20 $ 1.17 $ 2.92 $ 3.21 Diluted earnings per share: Net income $ 35,046 $ 28,095 $ 85,133 $ 77,105 Weighted-average basic common shares 29,115 24,016 29,023 23,989 Effect of dilutive securities 270 262 268 240 Weighted-average dilutive shares 29,385 24,278 29,291 24,229 Diluted earnings per common share $ 1.19 $ 1.16 $ 2.90 $ 3.18
Schedule of anti-dilutive securities excluded from computation of diluted earnings per common share	Three Months Ended September 30, Nine Months Ended September 30, (Dollars in thousands) 2017 2016 2017 2016 Number of shares Range of exercise prices $ to $ $ to $ $ to $ $ to $

Share-Based Compensation (Table

Share-Based Compensation (Tables)	9 Months Ended
	Sep. 30, 2017
Share-Based Compensation
Schedule of stock option activity	Weighted Weighted Average Aggregate Average Remaining Intrinsic Shares Price (Yrs.) (000's) Outstanding at January 1, 2017 246,535 $ 42.53 Granted 33,634 91.23 Exercised (29,030) 34.09 Outstanding at September 30, 2017 251,139 50.02 5.15 $ 10,094 Exercisable at September 30, 2017 181,152 39.84 3.87 $ 9,096 Weighted-average fair value of options granted during the year $
Schedule of weighted-average assumptions used in valuing options	Nine months ended September 30, Dividend yield % % Expected life years years Expected volatility % % Risk-free interest rate % %
Summary of nonvested restricted stock	Nonvested restricted stock for the nine months ended September 30, 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 21,683 88.63 Vested (52,153) 47.82 Forfeited (1,000) 91.35 Nonvested at September 30, 2017 151,544 58.28
Summary of nonvested RSUs	Nonvested RSUs for the nine months ended September 30, 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 66,655 89.01 LTIP Adjustment (3,951) 63.93 Nonvested at September 30, 2017 170,580 75.27

Fair Value (Tables)

Fair Value (Tables)	9 Months Ended
	Sep. 30, 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) September 30, 2017: Assets Derivative financial instruments $ 1,492 $ — $ 1,492 $ — Loans held for sale 46,321 — 46,321 — Securities available for sale: Government-sponsored entities debt 85,951 — 85,951 — State and municipal obligations 204,294 — 204,294 — Mortgage-backed securities 1,027,477 — 1,027,477 — Corporate stocks 2,957 1,732 1,225 — Total securities available for sale 1,320,679 1,732 1,318,947 — Mortgage servicing rights 29,937 — — 29,937 $ 1,398,429 $ 1,732 $ 1,366,760 $ 29,937 Liabilities Derivative financial instruments $ 1,301 $ — $ 1,301 $ — 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 stocks 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 $ — September 30, 2016: Assets Derivative financial instruments $ 3,091 $ — $ 3,091 $ — Loans held for sale 57,052 — 57,052 — Securities available for sale: Government-sponsored entities debt $ 62,980 $ — $ 62,980 $ — State and municipal obligations 117,324 — 117,324 — Mortgage-backed securities 741,277 — 741,277 — Corporate stocks 3,793 2,568 1,225 — Total securities available for sale 925,374 2,568 922,806 — Mortgage servicing rights 23,064 — — 23,064 $ 1,008,581 $ 2,568 $ 982,949 $ 23,064 Liabilities Derivative financial instruments $ 1,100 $ — $ 1,100 $ —
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 4,764 — Changes in fair value due to valuation inputs or assumptions (1,055) — Changes in fair value due to decay (2,809) — Fair value , September 30, 2017 $ 29,937 $ — Fair value, January 1, 2016 $ 26,202 $ — Servicing assets that resulted from transfers of financial assets 4,182 — Changes in fair value due to valuation inputs or assumptions (4,305) — Changes in fair value due to decay (3,015) — Fair value, September 30, 2016 $ 23,064 $ —
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) September 30, 2017: OREO $ 13,527 $ — $ — $ 13,527 Non-acquired impaired loans 5,588 — — 5,588 December 31, 2016: OREO $ 18,316 $ — $ — $ 18,316 Non-acquired impaired loans 6,611 — — 6,611 September 30, 2016: OREO $ 22,211 $ — $ — $ 22,211 Non-acquired impaired loans 4,360 — — 4,360
Quantitative Information about Level 3 Fair Value Measurements	Weighted Average September 30, December 31, September 30, Valuation Technique Unobservable Input 2017 2016 2016 Nonrecurring measurements: Non-acquired impaired loans Discounted appraisals Collateral discounts 3 % 6 % 7 % OREO Discounted appraisals Collateral discounts and estimated costs to sell 23 % 18 % 24 %
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 September 30, 2017 Financial assets: Cash and cash equivalents $ 403,934 $ 403,934 $ 403,934 $ — $ — Investment securities 1,336,796 1,336,850 14,171 1,322,679 — Loans held for sale 46,321 46,321 — 46,321 — Loans, net of allowance for loan losses 8,223,204 8,284,002 — — 8,284,002 Accrued interest receivable 25,172 25,172 — 5,373 19,799 Mortgage servicing rights 29,937 29,937 — — 29,937 Interest rate swap - non-designated hedge 200 200 — 200 — Other derivative financial instruments (mortgage banking related) 1,292 1,292 — 1,292 — Financial liabilities: Deposits 9,062,021 8,512,681 — 8,512,681 — Federal funds purchased and securities sold under agreements to repurchase 291,099 291,099 — 291,099 — Other borrowings 83,307 85,344 — 85,344 — Accrued interest payable 1,810 1,810 — 1,810 — Interest rate swap - non-designated hedge 197 197 — 197 — Interest rate swap - cash flow hedge 329 329 — 329 — Other derivative financial instruments (mortgage banking related) 775 775 — 775 — Off balance sheet financial instruments: Commitments to extend credit — 15,968 — 15,968 — 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 — September 30, 2016 Financial assets: Cash and cash equivalents $ 507,517 $ 507,517 $ 507,517 $ — $ — Investment securities 941,707 941,932 12,050 929,882 — Loans held for sale 57,052 57,052 — 57,052 — Loans, net of allowance for loan losses 6,489,068 6,667,622 — — 6,667,622 Accrued interest receivable 17,501 17,501 — 3,528 13,973 Mortgage servicing rights 23,064 23,064 — — 23,064 Other derivative financial instruments (mortgage banking related) 3,091 3,091 — 3,091 — Financial liabilities: Deposits 7,247,406 7,015,012 — 7,015,012 — Federal funds purchased and securities sold under agreements to repurchase 305,268 305,268 — 305,268 — Other borrowings 55,306 49,781 — 49,781 — Accrued interest payable 1,384 1,384 — 1,384 — Interest rate swap - cash flow hedge — — Other derivative financial instruments (mortgage banking related) 444 444 — 444 — Off balance sheet financial instruments: Commitments to extend credit — 45,285 — 45,285 —

Accumulated Other Comprehensi42

Accumulated Other Comprehensive Income (Loss) (Tables)	9 Months Ended
	Sep. 30, 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 Three Months Ended September 30, 2017 Balance at June 30, 2017 $ (5,962) $ 2,506 $ (241) $ (3,697) Other comprehensive income before reclassifications — 80 3 83 Amounts reclassified from accumulated other comprehensive income (loss) 116 (325) 35 (174) Net comprehensive income (loss) 116 (245) 38 (91) Balance at September 30, 2017 $ (5,846) $ 2,261 $ (203) $ (3,788) Three Months Ended September 30, 2016 Balance at June 30, 2016 $ (5,762) $ 12,752 $ (480) $ 6,510 Other comprehensive income (loss) before reclassifications — (2,715) 32 (2,683) Amounts reclassified from accumulated other comprehensive income 126 — 42 168 Net comprehensive income (loss) 126 (2,715) 74 (2,515) Balance at September 30, 2016 $ (5,636) $ 10,037 $ (406) $ 3,995 Nine Months Ended September 30, 2017 Balance at December 31, 2016 $ (6,195) $ (1,708) $ (308) $ (8,211) Other comprehensive income (loss) before reclassifications — 4,362 (35) 4,327 Amounts reclassified from accumulated other comprehensive income (loss) 349 (393) 140 96 Net comprehensive income 349 3,969 105 4,423 Balance at September 30, 2017 $ (5,846) $ 2,261 $ (203) $ (3,788) Nine Months Ended September 30, 2016 Balance at December 31, 2015 $ (6,015) $ 2,588 $ (444) $ (3,871) Other comprehensive income (loss) before reclassifications — 7,524 (91) 7,433 Amounts reclassified from accumulated other comprehensive income (loss) 379 (75) 129 433 Net comprehensive income 379 7,449 38 7,866 Balance at September 30, 2016 $ (5,636) $ 10,037 $ (406) $ 3,995
Schedule of reclassifications out of accumulated other comprehensive income (loss), net of tax	Amount Reclassified from Accumulated Other Comprehensive Income (Loss) (Dollars in thousands) For the Three Months Ended September 30, For the Nine Months Ended September 30, Accumulated Other Comprehensive Income (Loss) Component 2017 2016 2017 2016 Income Statement Line Item Affected Loss on cash flow hedges: Interest rate contracts $ 57 $ 69 $ 226 $ 209 Interest expense (22) (27) (86) (80) Provision for income taxes 35 42 140 129 Net income Gains on sales of available for sale securities: $ (1,278) $ — $ (1,388) $ (122) Securities gains, net 487 — 529 47 Provision for income taxes (791) — (859) (75) Net income Other-than-temporary impairment losses on available for sale securities: $ 753 $ — $ 753 $ — Other-than-temporary impairment losses (287) — (287) — Provision for income taxes 466 — 466 — Net income Amortization of defined benefit pension: Actuarial losses $ 188 $ 204 $ 564 $ 612 Salaries and employee benefits (72) (78) (215) (233) Provision for income taxes 116 126 349 379 Net income Total reclassifications for the period $ (640) $ 168 $ (370) $ 433

Derivative Financial Instrume43

Derivative Financial Instruments (Tables)	9 Months Ended
	Sep. 30, 2017
Derivative Financial Instruments
Schedule of notional value of forward sale commitments and the fair value of those obligations along with the fair value of the mortgage pipeline	(Dollars in thousands) September 30, 2017 December 31, 2016 September 30, 2016 Mortgage loan pipeline $ 90,452 $ $ 155,747 Expected closures 116,810 Fair value of mortgage loan pipeline commitments 941 3,049 Forward sales commitments 89,593 146,000 Fair value of forward commitments (445)

Capital Ratios (Tables)

Capital Ratios (Tables)	9 Months Ended
	Sep. 30, 2016
Capital Ratios
Schedule of actual and required capital ratios	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 September 30, 2017 Common equity Tier 1 to risk-weighted assets: Consolidated $ 1,013,065 12.11 % $ 480,973 5.75 % $ 585,532 7.00 % $ 543,709 6.50 % South State Bank (the Bank) 1,050,203 12.56 % 480,977 5.75 % 585,537 7.00 % 543,713 6.50 % Tier 1 capital to risk-weighted assets: Consolidated 1,084,145 12.96 % 606,444 7.25 % 711,004 8.50 % 669,180 8.00 % South State Bank (the Bank) 1,050,203 12.56 % 606,449 7.25 % 711,009 8.50 % 669,185 8.00 % Total capital to risk-weighted assets: Consolidated 1,129,742 13.51 % 773,739 9.25 % 878,299 10.50 % 836,475 10.00 % South State Bank (the Bank) 1,095,624 13.10 % 773,745 9.25 % 878,305 10.50 % 836,481 10.00 % Tier 1 capital to average assets (leverage ratio): Consolidated 1,084,145 10.34 % 419,265 4.00 % 419,265 4.00 % 524,082 5.00 % South State Bank (the Bank) 1,050,203 10.02 % 419,148 4.00 % 419,148 4.00 % 523,935 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 % September 30, 2016: Common equity Tier 1 to risk-weighted assets: Consolidated $ 765,032 11.48 % $ 341,538 5.125 % $ 466,491 7.00 % $ 433,170 6.50 % South State Bank (the Bank) 790,497 11.86 % 341,492 5.125 % 466,428 7.00 % 433,112 6.50 % Tier 1 capital to risk-weighted assets: Consolidated 817,746 12.27 % 441,500 6.625 % 566,453 8.50 % 533,132 8.00 % South State Bank (the Bank) 790,497 11.86 % 441,441 6.625 % 566,377 8.50 % 533,061 8.00 % Total capital to risk-weighted assets: Consolidated 858,813 12.89 % 574,783 8.625 % 699,736 10.50 % 666,415 10.00 % South State Bank (the Bank) 831,429 12.48 % 574,706 8.625 % 699,643 10.50 % 666,326 10.00 % Tier 1 capital to average assets (leverage ratio): Consolidated 817,746 9.74 % 335,972 4.00 % 335,972 4.00 % 419,964 5.00 % South State Bank (the Bank) 790,497 9.42 % 335,798 4.00 % 335,798 4.00 % 419,748 5.00 %

Goodwill and Other Intangible45

Goodwill and Other Intangible Assets (Tables)	9 Months Ended
	Sep. 30, 2017
Goodwill and Other Intangible Assets
Summary of gross carrying amounts and accumulated amortization of other intangible assets	September 30, December 31, September 30, (Dollars in thousands) 2017 2016 2016 Gross carrying amount $ 100,274 $ 82,154 $ 82,154 Accumulated amortization (49,802) (42,306) (40,416) $ 50,472 $ 39,848 $ 41,738
Schedule of estimated amortization expense for other intangibles for each of the next five quarters	(Dollars in thousands) Quarter ending: December 31, 2017 $ 2,494 March 31, 2018 2,331 June 30, 2018 2,319 September 30, 2018 2,318 December 31, 2018 2,317 Thereafter 38,693 $ 50,472

Loan Servicing, Mortgage Orig46

Loan Servicing, Mortgage Origination, and Loans Held for Sale (Tables)	9 Months Ended
	Sep. 30, 2017
Loan Servicing, Mortgage Origination, and Loans Held for Sale
Summary of changes in the fair value of MSRs and its offsetting hedge	Three Months Ended Nine Months Ended (Dollars in thousands) September 30, 2017 September 30, 2016 September 30, 2017 September 30, 2016 Increase (decrease) in fair value of MSRs $ $ 171 $ $ (4,305) Decay of MSRs (1,245) (3,015) Gain (loss) related to derivatives $ $ (492) $ 1,010 $ 4,521 Net effect on statements of income $ $ (1,566) $ $ (2,799)
Schedule of characteristics and sensitivity analysis of the MSR	September 30, December 31, September 30, (Dollars in thousands) 2017 2016 2016 Composition of residential loans serviced for others Fixed-rate mortgage loans 99.7 % 99.6 % 99.5 % Adjustable-rate mortgage loans 0.3 % 0.4 % 0.5 % Total 100.0 % 100.0 % 100.0 % Weighted average life 7.38 years years 5.80 years Constant Prepayment rate (CPR) 8.3 % 7.7 % 12.3 % Weighted average discount rate 9.5 % 9.8 % 9.8 % Effect on fair value due to change in interest rates 25 basis point increase $ 1,605 $ 1,399 $ 2,093 50 basis point increase 2,934 2,557 3,968 25 basis point decrease (1,940) (1,713) (2,398) 50 basis point decrease (4,249) (3,670) (4,845)

Recent Accounting and Regulat47

Recent Accounting and Regulatory Pronouncements (Details) - USD ($)	3 Months Ended	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2017
Recent Accounting and Regulatory Pronouncements
Amount adjusted against income tax expense	$ 104,000	$ 839,000

Mergers and Acquisitions - (Det

Mergers and Acquisitions - (Details)	Dec. 31, 2018location	Apr. 26, 2017$ / sharesshares	Jan. 03, 2017USD ($)shares	Sep. 30, 2017USD ($)locationshares	Dec. 31, 2016USD ($)shares	Sep. 30, 2016USD ($)shares
Mergers and Acquisitions
Total assets				$ 11,169,110,000	$ 8,900,592,000	$ 8,797,165,000
Deposits				9,062,021,000	7,334,423,000	7,247,406,000
Loans				$ 8,223,204,000	$ 6,643,326,000	$ 6,489,068,000
Branches planned to be closed | location	2
Common Stock, Shares, Outstanding | shares				29,267,369	24,230,392	24,209,122
SBFC
Mergers and Acquisitions
Common stock shares issued | shares			4,978,338
Total purchase price			$ 435,115,000
Fixed stock exchange ratio			0.7307
Aggregate consideration			$ 434,609,000
Value of stock options			$ 490,000
PSTB
Mergers and Acquisitions
Common stock shares issued | shares		7,471,072
Fixed exchange ratio for shares issued (in shares) | $ / shares		$ 0.14
Total assets				$ 3,300,000,000
Deposits				2,500,000,000
Loans				$ 2,400,000,000
Number of full service branches | location				50
Branches planned to be closed | location	12

Mergers and Acquisitions-SBFC -

Mergers and Acquisitions-SBFC - (Details) - USD ($)	Jan. 03, 2017	Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016
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	1,049,950,000
Premises and equipment	23,207,000
Bank owned life insurance	44,513,000
Intangible assets	18,120,000
OREO and repossessed assets	385,000
Deferred tax asset.	16,410,000
Other assets	7,063,000
Total assets	1,835,397,000
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Deposit Liabilities [Abstract]
Total deposits	1,520,920,000
Other liabilities (acquired)	27,743,000
Total liabilities	1,659,177,000
Net identifiable assets acquired over (under) liabilities assumed	176,220,000
Goodwill	258,895,000	$ 597,236,000	$ 338,340,000	$ 338,340,000
Net assets acquired over liabilities assumed	435,115,000
Federal funds purchased and securities sold under agreements to repurchase	1,014,000	291,099,000	$ 313,773,000	$ 305,268,000
Other borrowings	109,500,000
Consideration:
Fair value adjustments to employee benefit plans		8,259,000
Adjustment of other miscellaneous liabilities		$ 496,000
Subsequent Fair Value Adjustments
Business Combination Recognized Identifiable Assets Acquired [Abstract]
OREO and repossessed assets	(165,000)
Deferred tax asset.	850,000
Total assets	685,000
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	(1,525,000)
Goodwill	1,525,000
Initial Fair Value Adjustments
Business Combination Recognized Identifiable Assets Acquired [Abstract]
Investment securities	(1,770,000)
Loans	(10,668,000)
Premises and equipment	(2,212,000)
Intangible assets	17,980,000
OREO and repossessed assets	(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 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
Other borrowings	(1,120,000)
Interest-bearing Deposits
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Deposit Liabilities [Abstract]
Total deposits	1,257,953,000
Non interest-bearing deposits
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Deposit Liabilities [Abstract]
Total deposits	$ 262,967,000
SBFC
Consideration:
Common stock shares issued	4,978,338
Company common stock issued and cash exchanged for fractional shares.	$ 434,609,000
Cash paid for stock options outstanding	490,000
Fair value of total consideration transferred	435,115,000
Cash paid for fractional shares	16,000
Company common stock issued ($434,609) and cash exchanged for fractional shares ($16)	$ 434,625,000
Purchase price per share of the Company's common stock (in dollars per share)	$ 87.30
Adjustment to acquired loans portfolio	$ 30,749,000
Allowance for loan losses recorded	20,081,000
Discount on trust preferred securities	2,149,000
Federal Home Loan Bank, Advances, Premium	1,029,000
SBFC | 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	1,060,618,000
Premises and equipment	25,419,000
Bank owned life insurance	44,513,000
Intangible assets	140,000
OREO and repossessed assets	580,000
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]
Total deposits	1,520,920,000
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
Federal funds purchased and securities sold under agreements to repurchase	1,014,000
Other borrowings	110,620,000
SBFC | Interest-bearing Deposits | As previously recorded by acquiree
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Deposit Liabilities [Abstract]
Total deposits	1,257,953,000
SBFC | Non interest-bearing deposits | As previously recorded by acquiree
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Deposit Liabilities [Abstract]
Total deposits	$ 262,967,000

Investment Securities - Amortiz

Investment Securities - Amortized cost and fair value for held to maturity securities - (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016
Investment securities held to maturity
Amortized Cost	$ 3,678	$ 6,094	$ 6,851
Fair Value	3,732	6,250	7,076
State and municipal obligations
Investment securities held to maturity
Amortized Cost	3,678	6,094	6,851
Gross Unrealized Gains	54	156	225
Fair Value	$ 3,732	$ 6,250	$ 7,076

Investment Securities - Amort51

Investment Securities - Amortized cost and fair value for available for sale securities - (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016
Investment securities available for sale
Amortized Cost	$ 1,317,027	$ 1,002,166	$ 909,150
Gross Unrealized Gains	9,505	5,847	16,663
Gross Unrealized Losses	(5,853)	(8,608)	(439)
Fair Value	1,320,679	999,405	925,374
Government-sponsored entities debt
Investment securities available for sale
Amortized Cost	86,521	85,488	62,996
Gross Unrealized Gains	72		20
Gross Unrealized Losses	(642)	(846)	(36)
Fair Value	85,951	84,642	62,980
State and municipal obligations
Investment securities available for sale
Amortized Cost	199,898	105,303	112,797
Gross Unrealized Gains	4,584	2,289	4,542
Gross Unrealized Losses	(188)	(190)	(15)
Fair Value	204,294	107,402	117,324
Mortgage-backed securities. issued by Government sponsored entities
Investment securities available for sale
Amortized Cost	1,027,827	807,717	729,699
Gross Unrealized Gains	4,673	3,085	11,721
Gross Unrealized Losses	(5,023)	(7,225)	(143)
Fair Value	1,027,477	803,577	741,277
Common Stock
Investment securities available for sale
Amortized Cost	2,781	3,658	3,658
Gross Unrealized Gains	176	473	380
Gross Unrealized Losses		(347)	(245)
Fair Value	2,957	3,784	3,793
Mortgage-backed securities issued by private label holdings
Investment securities available for sale
Fair Value	$ 0	$ 0	$ 0

Investment Securities - Amort52

Investment Securities - Amortized cost and fair value of other investment securities - (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Information with respect to sales of available-for-sale securities
Proceeds from Sale of Available-for-sale Securities	$ 265,965	$ 137
Amortized Cost
Due in one year or less	12,023
Due after one year through five years	109,509
Due after five years through ten years	275,960
Due after ten years	919,535
Total	1,317,027	909,150	$ 1,002,166
Fair Value
Due in one year or less	12,090
Due after one year through five years	110,127
Due after five years through ten years	278,021
Due after ten years	920,441
Fair Value	1,320,679	925,374	999,405
Amortized Cost
Due in one year or less	2,225
Due after one year through five years	1,153
Due after five years through ten years	300
Total	3,678	6,851	6,094
Fair Value
Due in one year or less	2,253
Due after one year through five years	1,179
Due after five years through ten years	300
Fair Value	3,732	7,076	6,250
Amortized Cost	12,439	9,482	9,482
Fair Value	12,439	9,482	9,482
Federal Home Loan Bank stock
Fair Value
Amortized Cost	10,177	7,840	7,840
Fair Value	10,177	7,840	7,840
Investment in unconsolidated subsidiaries
Fair Value
Amortized Cost	2,262	1,642	1,642
Fair Value	$ 2,262	$ 1,642	$ 1,642

Investment Securities (Details)

Investment Securities (Details)	3 Months Ended
	Sep. 30, 2017USD ($)security	Dec. 31, 2016USD ($)	Sep. 30, 2016USD ($)
Securities Available for Sale, Gross Unrealized Losses
Less Than Twelve Months	$ 5,118,000	$ 8,184,000	$ 157,000
Twelve Months or More	735,000	424,000	282,000
Securities Available for Sale, Fair Value
Less Than Twelve Months	545,362,000	688,376,000	69,932,000
Twelve Months or More	47,747,000	3,453,000	3,821,000
Other than temporary impairment charge	$ 753,000
Number of securities | security	2
State and municipal obligations
Securities Available for Sale, Gross Unrealized Losses
Less Than Twelve Months	$ 188,000	190,000	15,000
Securities Available for Sale, Fair Value
Less Than Twelve Months	21,851,000	11,506,000	1,947,000
Government-sponsored entities debt
Securities Available for Sale, Gross Unrealized Losses
Less Than Twelve Months	473,000	846,000	36,000
Twelve Months or More	169,000
Securities Available for Sale, Fair Value
Less Than Twelve Months	68,366,000	84,642,000	11,962,000
Twelve Months or More	11,830,000
Mortgage-backed securities. issued by Government sponsored entities
Securities Available for Sale, Gross Unrealized Losses
Less Than Twelve Months	4,457,000	7,148,000	106,000
Twelve Months or More	566,000	77,000	37,000
Securities Available for Sale, Fair Value
Less Than Twelve Months	455,145,000	592,228,000	56,023,000
Twelve Months or More	$ 35,917,000	2,058,000	2,325,000
Common Stock
Securities Available for Sale, Gross Unrealized Losses
Twelve Months or More		347,000	245,000
Securities Available for Sale, Fair Value
Twelve Months or More		$ 1,395,000	$ 1,496,000

Loans and Allowance for Loan 54

Loans and Allowance for Loan Losses - (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Jun. 30, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Dec. 31, 2015
Loans and Allowance for Loan Losses
Loans, net	$ 8,223,204		$ 6,643,326	$ 6,489,068
Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	6,230,327		5,241,041	5,008,113
Less allowance for non-acquired loan losses	(41,541)	$ (40,149)	(36,960)	(37,319)	$ (36,939)	$ (34,090)
Loans, net	6,188,786		5,204,081	4,970,794
Non-acquired loans | Other commercial non-owner occupied real estate
Loans and Allowance for Loan Losses
Less allowance for non-acquired loan losses	(6,237)		(4,980)	(4,591)		(3,568)
Non-acquired loans | Consumer Owner Occupied Loans
Loans and Allowance for Loan Losses
Less allowance for non-acquired loan losses	(8,110)		(8,022)	(8,528)		(8,341)
Acquired credit impaired loans
Loans and Allowance for Loan Losses
Total loans	582,533			636,020
Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Total loans	1,455,555			885,657
Residential real estate | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Total loans	249,666			268,968
Commercial non-owner occupied real estate | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	1,716,827		1,295,179	1,192,773
Commercial non-owner occupied real estate | Non-acquired loans | Construction and land development
Loans and Allowance for Loan Losses
Total loans	766,957		580,464	562,336
Less allowance for non-acquired loan losses	(5,972)	(5,746)		(4,111)	(4,665)
Commercial non-owner occupied real estate | Non-acquired loans | Other commercial non-owner occupied real estate
Loans and Allowance for Loan Losses
Total loans	949,870		714,715	630,437
Less allowance for non-acquired loan losses	(6,237)	(6,164)		(4,591)	(4,656)
Commercial non-owner occupied real estate | Acquired credit impaired loans | Construction and land development
Loans and Allowance for Loan Losses
Total loans	46,248			47,081
Commercial non-owner occupied real estate | Acquired credit impaired loans | Other commercial non-owner occupied real estate
Loans and Allowance for Loan Losses
Total loans	199,082			220,489
Commercial non-owner occupied real estate | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Total loans	199,704			35,775
Commercial non-owner occupied real estate | Acquired non-credit impaired loans | Construction and land development
Loans and Allowance for Loan Losses
Total loans	76,886			10,683
Commercial owner occupied real estate loan | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	1,278,487		1,177,745	1,153,480
Less allowance for non-acquired loan losses	(8,110)	(7,539)		(8,528)	(8,003)
Commercial owner occupied real estate loan | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Total loans	207,572			29,444
Consumer real estate | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	1,874,518		1,580,839	1,547,266
Consumer real estate | Non-acquired loans | Home equity loans
Loans and Allowance for Loan Losses
Total loans	419,760		383,218	363,825
Less allowance for non-acquired loan losses	(3,097)	(3,247)		(3,281)	(3,148)
Consumer real estate | Non-acquired loans | Consumer
Loans and Allowance for Loan Losses
Total loans	2,258,921		1,918,481	1,864,740
Consumer real estate | Non-acquired loans | Consumer Owner Occupied Loans
Loans and Allowance for Loan Losses
Total loans	1,454,758		1,197,621	1,183,441
Less allowance for non-acquired loan losses	(9,126)	(8,569)		(7,850)	(7,530)
Consumer real estate | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Total loans	53,302			61,866
Consumer real estate | Acquired non-credit impaired loans | Home equity loans
Loans and Allowance for Loan Losses
Total loans	164,291			168,758
Consumer real estate | Acquired non-credit impaired loans | Consumer Owner Occupied Loans
Loans and Allowance for Loan Losses
Total loans	492,615			435,132
Commercial and industrial | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	781,757		671,398	617,525
Less allowance for non-acquired loan losses	(5,203)	(5,143)	(4,842)	(4,710)	(4,269)	(3,974)
Commercial and industrial | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Total loans	25,796			26,658
Commercial and industrial | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Total loans	101,427			14,201
Other income producing property | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	194,335		178,238	179,595
Less allowance for non-acquired loan losses	(1,388)	(1,379)	(1,542)	(1,619)	(1,812)	(1,963)
Other income producing property | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Total loans	76,924			43,152
Consumer | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	371,758		324,238	305,687
Less allowance for non-acquired loan losses	(2,692)	(2,532)		(2,308)	(2,014)
Consumer | Non-acquired loans | Home equity loans
Loans and Allowance for Loan Losses
Less allowance for non-acquired loan losses	(3,097)		(3,211)	(3,281)		(2,929)
Consumer | Non-acquired loans | Consumer
Loans and Allowance for Loan Losses
Less allowance for non-acquired loan losses	(2,692)		(2,350)	(2,308)		(1,694)
Consumer | Non-acquired loans | Other Consumer
Loans and Allowance for Loan Losses
Less allowance for non-acquired loan losses	284		(102)	(321)		(293)
Consumer | Non-acquired loans | Consumer Owner Occupied Loans
Loans and Allowance for Loan Losses
Less allowance for non-acquired loan losses	(9,126)		(7,820)	(7,850)		(7,212)
Consumer | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Total loans	136,136			148,512
Commercial | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	3,971,406		3,322,560	3,143,373
Commercial | Non-acquired loans | Construction and land development
Loans and Allowance for Loan Losses
Less allowance for non-acquired loan losses	(5,972)		(4,091)	(4,111)		$ (4,116)
Other loans | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	12,645		$ 13,404	11,787
Less allowance for non-acquired loan losses	284	$ 170		(321)	$ (842)
Commercial loans 1000000 or more | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Total loans	$ 8,439			$ 10,958

Loans and Allowance for Loan 55

Loans and Allowance for Loan Losses - Summary of acquired non credit impaired loans - (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Jun. 30, 2017	Jan. 03, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Dec. 31, 2015
Acquired credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	$ 582,533			$ 605,941	$ 636,020
Less allowance for loan losses	(3,670)	$ (3,741)		(3,395)	(3,403)	$ (3,752)	$ (3,706)
Acquired loans, net	578,863			602,546	632,617		733,870
Impaired non-acquired and acquired loans accounted under FASB ASC topic 310-20
Loans and Allowance for Loan Losses
Carrying value			$ 991,500
Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	1,455,555			836,699	885,657
Unamortized Discounts	20,700			11,600	12,600
Residential real estate | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	249,666			258,100	268,968
Less allowance for loan losses	(2,776)	(2,741)		(2,419)	(2,492)	(2,592)	(2,986)
Commercial non-owner occupied real estate | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	276,590			44,718	46,458
Commercial owner occupied real estate loan | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	207,572			27,195	29,444
Consumer real estate | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	53,302			59,300	61,866
Less allowance for loan losses	(462)	(548)			(544)	(778)
Consumer real estate | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	656,906			569,149	603,890
Commercial and industrial | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	25,796			25,347	26,658
Less allowance for loan losses	(243)	(320)		(238)	(182)	(196)	(174)
Commercial and industrial | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	101,427			13,641	14,201
Other income producing property | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	76,924			39,342	43,152
Consumer | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	53,302			59,300	61,866
Less allowance for loan losses	(462)			(558)	(543)		(313)
Consumer | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	136,136			142,654	148,512
Commercial | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Less allowance for loan losses				(41)	(41)		(56)
Commercial | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	662,513			124,896	133,255
Commercial loans 1000000 or more | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	8,439			8,617	10,958
Construction and land development | Commercial non-owner occupied real estate | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	46,248			44,373	47,081
Less allowance for loan losses	(189)	(92)			(145)	(151)
Construction and land development | Commercial non-owner occupied real estate | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	76,886			10,090	10,683
Construction and land development | Commercial | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Less allowance for loan losses	(189)			(139)	(145)		$ (177)
Other commercial non-owner occupied real estate | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Carrying value				210,204
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	199,082			210,204	220,489
Less allowance for loan losses		$ (40)			(40)	$ (35)
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	199,704			34,628	35,775
Home equity loans | Consumer real estate | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	164,291			160,879	168,758
Consumer | Consumer real estate | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	136,136			142,654	148,512
Other Consumer | Consumer real estate | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	793,042			711,803	752,402
Consumer Owner Occupied Loans | Consumer real estate | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	$ 492,615			$ 408,270	$ 435,132

Loans and Allowance for Loan 56

Loans and Allowance for Loan Losses - Table of loan payment estimates - (Details) - USD ($) $ in Thousands	Jan. 03, 2017	Sep. 30, 2017	Jun. 30, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Dec. 31, 2015
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		$ 741,268		$ 778,822	$ 822,340
Non-accretable difference		(26,160)		(17,502)	(22,222)
Cash flows expected to be collected		715,108		761,320	800,118
Accretable Yield		(132,575)		(155,379)	(164,098)
Carrying value		582,533		605,941	636,020
Allowance for loan losses on acquired loans		(3,670)	$ (3,741)	(3,395)	(3,403)	$ (3,752)	$ (3,706)
Acquired credit impaired loans | SBFC
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
Impaired non-acquired and acquired loans accounted 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 acquired loans
Contractual principal and interest	1,010,000
Carrying value	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		1,455,555		836,699	885,657
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		249,666		258,100	268,968
Allowance for loan losses on acquired loans		(2,776)	(2,741)	(2,419)	(2,492)	(2,592)	(2,986)
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		276,590		44,718	46,458
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		207,572		27,195	29,444
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		53,302		59,300	61,866
Allowance for loan losses on acquired loans		(462)	(548)		(544)	(778)
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		656,906		569,149	603,890
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		25,796		25,347	26,658
Allowance for loan losses on acquired loans		(243)	(320)	(238)	(182)	(196)	(174)
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		101,427		13,641	14,201
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		76,924		39,342	43,152
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		53,302		59,300	61,866
Allowance for loan losses on acquired loans		(462)		(558)	(543)		(313)
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		136,136		142,654	148,512
Commercial | 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				(41)	(41)		(56)
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		662,513		124,896	133,255
Commercial loans 1000000 or more | 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		8,439		8,617	10,958
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		46,248		44,373	47,081
Allowance for loan losses on acquired loans		(189)	(92)		(145)	(151)
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		76,886		10,090	10,683
Construction and land development | Commercial | 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		(189)		(139)	(145)		$ (177)
Other 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				210,204
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		199,082		210,204	220,489
Allowance for loan losses on acquired loans			$ (40)		(40)	$ (35)
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		199,704		34,628	35,775
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		164,291		160,879	168,758
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		136,136		142,654	148,512
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		793,042		711,803	752,402
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		$ 492,615		$ 408,270	$ 435,132

Loans and Allowance for Loan 57

Loans and Allowance for Loan Losses - Changes in the carrying value of acquired credit impaired loans - (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Changes in the carrying amount of accretable difference for acquired impaired and non-impaired loans
Improved expected cash flows	$ 7,800
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	$ 733,870
Fair value of acquired loans	55,850
Net reductions for payments, foreclosures, and accretion	(79,258)	(101,556)
Change in the allowance for loan losses on acquired loans	(275)	303
Balance at the end of the period	578,863	632,617
Changes in the carrying amount of accretable difference for acquired impaired and non-impaired loans
Balance at beginning of period	155,379	201,538
Addition from the Southeastern acquisition	4,603
Accretion	(43,873)	(56,850)
Reclass of nonaccretable difference due to improvement in expected cash flows	16,772	18,631
Other changes, net	(306)	779
Balance at end of period	$ 132,575	164,098
Decline in accretable yield balance		$ 14,300

Loans and Allowance for Loan 58

Loans and Allowance for Loan Losses - Aggregated analysis of the changes in allowance for loan losses - (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Changes in allowance for loan losses
Balance at beginning of period	$ 43,890	$ 40,691	$ 40,355	$ 37,796
Loans charged-off	(1,658)	(1,388)	(5,137)	(5,194)
Recoveries of loans previously charged off	1,115	833	2,455	2,620
Net charge-offs	(543)	(555)	(2,682)	(2,574)
Provision (benefit)		912	8,082	6,175
Benefits attributable to FDIC loss share agreements net				23
Total provision for loan losses charged to operations	2,062	912	8,082	6,198
Provision for loan losses recorded through the FDIC loss share receivable				(23)
Reduction due to loan removals	(198)	(326)	(544)	(675)
Balance at end of period	45,211	40,722	45,211	40,722
Non-acquired loans
Changes in allowance for loan losses
Balance at beginning of period	40,149	36,939	36,960	34,090
Loans charged-off	(1,383)	(1,108)	(3,972)	(4,384)
Recoveries of loans previously charged off	836	713	2,041	2,358
Net charge-offs	(547)	(395)	(1,931)	(2,026)
Provision (benefit)		775	6,512	5,255
Total provision for loan losses charged to operations	1,939	775	6,512	5,255
Balance at end of period	41,541	37,319	41,541	37,319
Acquired non-credit impaired loans
Changes in allowance for loan losses
Loans charged-off	(275)	(280)	(1,165)	(810)
Recoveries of loans previously charged off	279	120	414	262
Net charge-offs	4	(160)	(751)	(548)
Provision (benefit)		160	751	548
Total provision for loan losses charged to operations	(4)	160	751	548
Acquired credit impaired loans
Changes in allowance for loan losses
Balance at beginning of period	3,741	3,752	3,395	3,706
Provision (benefit)	127	(23)	819	372
Benefits attributable to FDIC loss share agreements net				23
Benefits attributable to FDIC loss share agreements				23
Total provision for loan losses charged to operations	127	(23)	819	395
Provision for loan losses recorded through the FDIC loss share receivable				(23)
Reduction due to loan removals	(198)	(326)	(544)	(675)
Balance at end of period	3,670	3,403	3,670	3,403
Residential real estate | Acquired credit impaired loans
Changes in allowance for loan losses
Provision (benefit)	184	2	743	(178)
Benefits attributable to FDIC loss share agreements				23
Total provision for loan losses charged to operations	184	2	743	(155)
Provision for loan losses recorded through the FDIC loss share receivable				(23)
Reduction due to loan removals	(149)	(102)	(386)	(316)
Commercial owner occupied real estate loan | Non-acquired loans
Changes in allowance for loan losses
Loans charged-off		(16)
Recoveries of loans previously charged off	92	25
Total provision for loan losses charged to operations	479	516
Commercial owner occupied real estate loan | Acquired non-credit impaired loans
Changes in allowance for loan losses
Loans charged-off		(3)		(3)
Recoveries of loans previously charged off	1		1
Total provision for loan losses charged to operations	(1)	3	(1)	3
Consumer real estate | Acquired credit impaired loans
Changes in allowance for loan losses
Provision (benefit)	(85)	(23)
Total provision for loan losses charged to operations	(85)	(23)
Reduction due to loan removals	(1)	(211)
Commercial and industrial | Non-acquired loans
Changes in allowance for loan losses
Loans charged-off	(440)	(31)	(629)	(358)
Recoveries of loans previously charged off	31	104	264	207
Total provision for loan losses charged to operations	469	368	726	887
Commercial and industrial | Acquired non-credit impaired loans
Changes in allowance for loan losses
Loans charged-off	(1)	(23)	(3)	(30)
Recoveries of loans previously charged off	1	1	3	3
Total provision for loan losses charged to operations		22		27
Commercial and industrial | Acquired credit impaired loans
Changes in allowance for loan losses
Provision (benefit)	(65)	(2)	71	38
Total provision for loan losses charged to operations	(65)	(2)	71	38
Reduction due to loan removals	(12)	(12)	(66)	(30)
Other income producing property | Non-acquired loans
Changes in allowance for loan losses
Loans charged-off	(10)		(17)	(7)
Recoveries of loans previously charged off	29	8	77	47
Total provision for loan losses charged to operations	(10)	(201)	(214)	(384)
Other income producing property | Acquired non-credit impaired loans
Changes in allowance for loan losses
Recoveries of loans previously charged off			1	1
Total provision for loan losses charged to operations			(1)	(1)
Consumer | Non-acquired loans
Changes in allowance for loan losses
Loans charged-off	(897)	(1,016)
Recoveries of loans previously charged off	168	216
Total provision for loan losses charged to operations	889	1,094
Consumer | Acquired non-credit impaired loans
Changes in allowance for loan losses
Loans charged-off	(123)	(149)	(337)	(485)
Recoveries of loans previously charged off	2	26	21	49
Total provision for loan losses charged to operations	121	123	316	436
Consumer | Acquired credit impaired loans
Changes in allowance for loan losses
Provision (benefit)			(85)	511
Total provision for loan losses charged to operations			(85)	511
Reduction due to loan removals			(11)	(281)
Commercial | Acquired credit impaired loans
Changes in allowance for loan losses
Provision (benefit)			(40)	1
Total provision for loan losses charged to operations			(40)	1
Reduction due to loan removals			(1)	(16)
Other loans | Non-acquired loans
Changes in allowance for loan losses
Total provision for loan losses charged to operations	(114)	(521)
Construction and land development | Commercial non-owner occupied real estate | Non-acquired loans
Changes in allowance for loan losses
Loans charged-off	(19)
Recoveries of loans previously charged off	333	241
Total provision for loan losses charged to operations	(88)	(795)
Construction and land development | Commercial non-owner occupied real estate | Acquired non-credit impaired loans
Changes in allowance for loan losses
Recoveries of loans previously charged off	1	1
Total provision for loan losses charged to operations	(1)	(1)
Construction and land development | Commercial non-owner occupied real estate | Acquired credit impaired loans
Changes in allowance for loan losses
Provision (benefit)	133
Total provision for loan losses charged to operations	133
Reduction due to loan removals	(36)	(6)
Construction and land development | Commercial | Non-acquired loans
Changes in allowance for loan losses
Loans charged-off			(493)	(159)
Recoveries of loans previously charged off			555	848
Total provision for loan losses charged to operations			1,819	(694)
Construction and land development | Commercial | Acquired non-credit impaired loans
Changes in allowance for loan losses
Recoveries of loans previously charged off			3	3
Total provision for loan losses charged to operations			(3)	(3)
Construction and land development | Commercial | Acquired credit impaired loans
Changes in allowance for loan losses
Provision (benefit)			130
Total provision for loan losses charged to operations			130
Reduction due to loan removals			(80)	(32)
Other commercial non-owner occupied real estate | Non-acquired loans
Changes in allowance for loan losses
Recoveries of loans previously charged off			128	59
Total provision for loan losses charged to operations			1,129	964
Other commercial non-owner occupied real estate | Commercial non-owner occupied real estate | Non-acquired loans
Changes in allowance for loan losses
Recoveries of loans previously charged off	80	28
Total provision for loan losses charged to operations	(7)	(93)
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)	(40)
Total provision for loan losses charged to operations	(40)
Reduction due to loan removals		5
Home equity loans | Consumer real estate | Non-acquired loans
Changes in allowance for loan losses
Loans charged-off	(17)
Recoveries of loans previously charged off	38	64
Total provision for loan losses charged to operations	(171)	69
Home equity loans | Consumer real estate | Acquired non-credit impaired loans
Changes in allowance for loan losses
Loans charged-off	(71)	(105)
Recoveries of loans previously charged off	274	89
Total provision for loan losses charged to operations	(203)	16
Home equity loans | Consumer | Non-acquired loans
Changes in allowance for loan losses
Loans charged-off			(241)	(767)
Recoveries of loans previously charged off			133	239
Total provision for loan losses charged to operations			(6)	880
Home equity loans | Consumer | Acquired non-credit impaired loans
Changes in allowance for loan losses
Loans charged-off			(736)	(292)
Recoveries of loans previously charged off			343	197
Total provision for loan losses charged to operations			393	95
Consumer | Consumer | Non-acquired loans
Changes in allowance for loan losses
Loans charged-off			(2,407)	(2,802)
Recoveries of loans previously charged off			546	787
Total provision for loan losses charged to operations			2,203	2,629
Other Consumer | Consumer | Non-acquired loans
Changes in allowance for loan losses
Total provision for loan losses charged to operations			(386)	28
Consumer Owner Occupied Loans | Non-acquired loans
Changes in allowance for loan losses
Loans charged-off				(117)
Recoveries of loans previously charged off			197	46
Total provision for loan losses charged to operations			(109)	258
Consumer Owner Occupied Loans | Consumer real estate | Non-acquired loans
Changes in allowance for loan losses
Loans charged-off		(45)
Recoveries of loans previously charged off	65	27
Total provision for loan losses charged to operations	492	338
Consumer Owner Occupied Loans | Consumer real estate | Acquired non-credit impaired loans
Changes in allowance for loan losses
Recoveries of loans previously charged off		3
Total provision for loan losses charged to operations	$ 80	$ (3)
Consumer Owner Occupied Loans | Consumer | Non-acquired loans
Changes in allowance for loan losses
Loans charged-off			(185)	(174)
Recoveries of loans previously charged off			141	125
Total provision for loan losses charged to operations			1,350	687
Consumer Owner Occupied Loans | Consumer | Acquired non-credit impaired loans
Changes in allowance for loan losses
Loans charged-off			(89)
Recoveries of loans previously charged off			42	9
Total provision for loan losses charged to operations			$ 47	$ (9)

Loans and Allowance for Loan 59

Loans and Allowance for Loan Losses - Disaggregated analysis of activity in for allowances for non acquired loans - (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Allowance for loan losses:
Charge-offs	$ (1,658)	$ (1,388)	$ (5,137)	$ (5,194)
Recoveries	1,115	833	2,455	2,620
Provision (benefit)	2,062	912	8,082	6,198
Non-acquired loans
Allowance for loan losses:
Balance at beginning of period	40,149	36,939	36,960	34,090
Charge-offs	(1,383)	(1,108)	(3,972)	(4,384)
Recoveries	836	713	2,041	2,358
Provision (benefit)	1,939	775	6,512	5,255
Balance at end of period	41,541	37,319	41,541	37,319
Loans individually evaluated for impairment	1,862	1,379	1,862	1,379
Loans collectively evaluated for impairment	39,679	35,940	39,679	35,940
Loans:
Loans individually evaluated for impairment	60,792	21,187	60,792	21,187
Loans collectively evaluated for impairment	6,169,535	4,986,926	6,169,535	4,986,926
Total loans	6,230,327	5,008,113	6,230,327	5,008,113	$ 5,241,041
Non-acquired loans | Other commercial non-owner occupied real estate
Allowance for loan losses:
Balance at beginning of period			4,980	3,568
Recoveries			128	59
Provision (benefit)			1,129	964
Balance at end of period	6,237	4,591	6,237	4,591
Non-acquired loans | Consumer Owner Occupied Loans
Allowance for loan losses:
Balance at beginning of period			8,022	8,341
Charge-offs				(117)
Recoveries			197	46
Provision (benefit)			(109)	258
Balance at end of period	8,110	8,528	8,110	8,528
Acquired non-credit impaired loans
Allowance for loan losses:
Charge-offs	(275)	(280)	(1,165)	(810)
Recoveries	279	120	414	262
Provision (benefit)	(4)	160	751	548
Loans:
Loans collectively evaluated for impairment	1,455,555	885,657	1,455,555	885,657
Total loans	1,455,555	885,657	1,455,555	885,657
Commercial non-owner occupied real estate | Non-acquired loans
Loans:
Total loans	1,716,827	1,192,773	1,716,827	1,192,773	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	5,746	4,665
Charge-offs	(19)
Recoveries	333	241
Provision (benefit)	(88)	(795)
Balance at end of period	5,972	4,111	5,972	4,111
Loans individually evaluated for impairment	1,266	359	1,266	359
Loans collectively evaluated for impairment	4,706	3,752	4,706	3,752
Loans:
Loans individually evaluated for impairment	42,638	3,431	42,638	3,431
Loans collectively evaluated for impairment	724,319	558,905	724,319	558,905
Total loans	766,957	562,336	766,957	562,336	580,464
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	6,164	4,656
Recoveries	80	28
Provision (benefit)	(7)	(93)
Balance at end of period	6,237	4,591	6,237	4,591
Loans individually evaluated for impairment	133	181	133	181
Loans collectively evaluated for impairment	6,104	4,410	6,104	4,410
Loans:
Loans individually evaluated for impairment	716	764	716	764
Loans collectively evaluated for impairment	949,154	629,673	949,154	629,673
Total loans	949,870	630,437	949,870	630,437	714,715
Commercial non-owner occupied real estate | Acquired non-credit impaired loans
Loans:
Loans collectively evaluated for impairment	199,704	35,775	199,704	35,775
Total loans	199,704	35,775	199,704	35,775
Commercial non-owner occupied real estate | Acquired non-credit impaired loans | Construction and land development
Allowance for loan losses:
Recoveries	1	1
Provision (benefit)	(1)	(1)
Loans:
Loans collectively evaluated for impairment	76,886	10,683	76,886	10,683
Total loans	76,886	10,683	76,886	10,683
Commercial owner occupied real estate loan | Non-acquired loans
Allowance for loan losses:
Balance at beginning of period	7,539	8,003
Charge-offs		(16)
Recoveries	92	25
Provision (benefit)	479	516
Balance at end of period	8,110	8,528	8,110	8,528
Loans individually evaluated for impairment	64	65	64	65
Loans collectively evaluated for impairment	8,046	8,463	8,046	8,463
Loans:
Loans individually evaluated for impairment	5,874	6,352	5,874	6,352
Loans collectively evaluated for impairment	1,272,613	1,147,128	1,272,613	1,147,128
Total loans	1,278,487	1,153,480	1,278,487	1,153,480	1,177,745
Commercial owner occupied real estate loan | Acquired non-credit impaired loans
Allowance for loan losses:
Charge-offs		(3)		(3)
Recoveries	1		1
Provision (benefit)	(1)	3	(1)	3
Loans:
Loans collectively evaluated for impairment	207,572	29,444	207,572	29,444
Total loans	207,572	29,444	207,572	29,444
Consumer real estate | Non-acquired loans
Loans:
Total loans	1,874,518	1,547,266	1,874,518	1,547,266	1,580,839
Consumer real estate | Non-acquired loans | Home equity loans
Allowance for loan losses:
Balance at beginning of period	3,247	3,148
Charge-offs	(17)
Recoveries	38	64
Provision (benefit)	(171)	69
Balance at end of period	3,097	3,281	3,097	3,281
Loans individually evaluated for impairment	116	38	116	38
Loans collectively evaluated for impairment	2,981	3,243	2,981	3,243
Loans:
Loans individually evaluated for impairment	2,623	1,599	2,623	1,599
Loans collectively evaluated for impairment	417,137	362,226	417,137	362,226
Total loans	419,760	363,825	419,760	363,825	383,218
Consumer real estate | Non-acquired loans | Consumer
Loans:
Total loans	2,258,921	1,864,740	2,258,921	1,864,740	1,918,481
Consumer real estate | Non-acquired loans | Consumer Owner Occupied Loans
Allowance for loan losses:
Balance at beginning of period	8,569	7,530
Charge-offs		(45)
Recoveries	65	27
Provision (benefit)	492	338
Balance at end of period	9,126	7,850	9,126	7,850
Loans individually evaluated for impairment	47	58	47	58
Loans collectively evaluated for impairment	9,079	7,792	9,079	7,792
Loans:
Loans individually evaluated for impairment	4,455	3,127	4,455	3,127
Loans collectively evaluated for impairment	1,450,303	1,180,314	1,450,303	1,180,314
Total loans	1,454,758	1,183,441	1,454,758	1,183,441	1,197,621
Consumer real estate | Acquired non-credit impaired loans | Home equity loans
Allowance for loan losses:
Charge-offs	(71)	(105)
Recoveries	274	89
Provision (benefit)	(203)	16
Loans:
Loans collectively evaluated for impairment	164,291	168,758	164,291	168,758
Total loans	164,291	168,758	164,291	168,758
Consumer real estate | Acquired non-credit impaired loans | Consumer Owner Occupied Loans
Allowance for loan losses:
Charge-offs (added back)	(80)
Recoveries		3
Provision (benefit)	80	(3)
Loans:
Loans collectively evaluated for impairment	492,615	435,132	492,615	435,132
Total loans	492,615	435,132	492,615	435,132
Commercial and industrial | Non-acquired loans
Allowance for loan losses:
Balance at beginning of period	5,143	4,269	4,842	3,974
Charge-offs	(440)	(31)	(629)	(358)
Recoveries	31	104	264	207
Provision (benefit)	469	368	726	887
Balance at end of period	5,203	4,710	5,203	4,710
Loans individually evaluated for impairment	18	385	18	385
Loans collectively evaluated for impairment	5,185	4,325	5,185	4,325
Loans:
Loans individually evaluated for impairment	627	1,453	627	1,453
Loans collectively evaluated for impairment	781,130	616,072	781,130	616,072
Total loans	781,757	617,525	781,757	617,525	671,398
Commercial and industrial | Acquired non-credit impaired loans
Allowance for loan losses:
Charge-offs	(1)	(23)	(3)	(30)
Recoveries	1	1	3	3
Provision (benefit)		22		27
Loans:
Loans collectively evaluated for impairment	101,427	14,201	101,427	14,201
Total loans	101,427	14,201	101,427	14,201
Other income producing property | Non-acquired loans
Allowance for loan losses:
Balance at beginning of period	1,379	1,812	1,542	1,963
Charge-offs	(10)		(17)	(7)
Recoveries	29	8	77	47
Provision (benefit)	(10)	(201)	(214)	(384)
Balance at end of period	1,388	1,619	1,388	1,619
Loans individually evaluated for impairment	211	289	211	289
Loans collectively evaluated for impairment	1,177	1,330	1,177	1,330
Loans:
Loans individually evaluated for impairment	3,605	4,319	3,605	4,319
Loans collectively evaluated for impairment	190,730	175,276	190,730	175,276
Total loans	194,335	179,595	194,335	179,595	178,238
Other income producing property | Acquired non-credit impaired loans
Allowance for loan losses:
Recoveries			1	1
Provision (benefit)			(1)	(1)
Loans:
Loans collectively evaluated for impairment	76,924	43,152	76,924	43,152
Total loans	76,924	43,152	76,924	43,152
Consumer | Non-acquired loans
Allowance for loan losses:
Balance at beginning of period	2,532	2,014
Charge-offs	(897)	(1,016)
Recoveries	168	216
Provision (benefit)	889	1,094
Balance at end of period	2,692	2,308	2,692	2,308
Loans individually evaluated for impairment	7	4	7	4
Loans collectively evaluated for impairment	2,685	2,304	2,685	2,304
Loans:
Loans individually evaluated for impairment	254	142	254	142
Loans collectively evaluated for impairment	371,504	305,545	371,504	305,545
Total loans	371,758	305,687	371,758	305,687	324,238
Consumer | Non-acquired loans | Home equity loans
Allowance for loan losses:
Balance at beginning of period			3,211	2,929
Charge-offs			(241)	(767)
Recoveries			133	239
Provision (benefit)			(6)	880
Balance at end of period	3,097	3,281	3,097	3,281
Consumer | Non-acquired loans | Consumer
Allowance for loan losses:
Balance at beginning of period			2,350	1,694
Charge-offs			(2,407)	(2,802)
Recoveries			546	787
Provision (benefit)			2,203	2,629
Balance at end of period	2,692	2,308	2,692	2,308
Consumer | Non-acquired loans | Other Consumer
Allowance for loan losses:
Balance at beginning of period			102	293
Provision (benefit)			(386)	28
Balance at end of period	(284)	321	(284)	321
Consumer | Non-acquired loans | Consumer Owner Occupied Loans
Allowance for loan losses:
Balance at beginning of period			7,820	7,212
Charge-offs			(185)	(174)
Recoveries			141	125
Provision (benefit)			1,350	687
Balance at end of period	9,126	7,850	9,126	7,850
Consumer | Acquired non-credit impaired loans
Allowance for loan losses:
Charge-offs	(123)	(149)	(337)	(485)
Recoveries	2	26	21	49
Provision (benefit)	121	123	316	436
Loans:
Loans collectively evaluated for impairment	136,136	148,512	136,136	148,512
Total loans	136,136	148,512	136,136	148,512
Consumer | Acquired non-credit impaired loans | Home equity loans
Allowance for loan losses:
Charge-offs			(736)	(292)
Recoveries			343	197
Provision (benefit)			393	95
Consumer | Acquired non-credit impaired loans | Consumer Owner Occupied Loans
Allowance for loan losses:
Charge-offs			(89)
Recoveries			42	9
Provision (benefit)			47	(9)
Commercial | Non-acquired loans
Loans:
Total loans	3,971,406	3,143,373	3,971,406	3,143,373	3,322,560
Commercial | Non-acquired loans | Construction and land development
Allowance for loan losses:
Balance at beginning of period			4,091	4,116
Charge-offs			(493)	(159)
Recoveries			555	848
Provision (benefit)			1,819	(694)
Balance at end of period	5,972	4,111	5,972	4,111
Commercial | Acquired non-credit impaired loans | Construction and land development
Allowance for loan losses:
Recoveries			3	3
Provision (benefit)			(3)	(3)
Other loans | Non-acquired loans
Allowance for loan losses:
Balance at beginning of period	(170)	842
Provision (benefit)	(114)	(521)
Balance at end of period	(284)	321	(284)	321
Loans collectively evaluated for impairment	(284)		(284)
Loans collectively evaluated for impairment		321		321
Loans:
Loans collectively evaluated for impairment	12,645	11,787	12,645	11,787
Total loans	$ 12,645	$ 11,787	$ 12,645	$ 11,787	$ 13,404

Loans and Allowance for Loan 60

Loans and Allowance for Loan Losses - Disaggregated analysis of activity in the allowance for acquired credit impaired loans (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Allowance for loan losses:
Provision for loan losses before benefit attributable to FDIC loss share agreements		$ 912	$ 8,082	$ 6,175
Total provision for loan losses charged to operations	$ 2,062	912	8,082	6,198
Provision for loan losses recorded through the FDIC loss share receivable				(23)
Reduction due to loan removals	(198)	(326)	(544)	(675)
Non-acquired loans
Allowance for loan losses:
Provision for loan losses before benefit attributable to FDIC loss share agreements		775	6,512	5,255
Total provision for loan losses charged to operations	1,939	775	6,512	5,255
Loans individually evaluated for impairment	1,862	1,379	1,862	1,379
Loans collectively evaluated for impairment	39,679	35,940	39,679	35,940
Loans:
Loans individually evaluated for impairment	60,792	21,187	60,792	21,187
Loans collectively evaluated for impairment	6,169,535	4,986,926	6,169,535	4,986,926
Acquired credit impaired loans
Allowance for loan losses:
Balance at the beginning of the period	3,741	3,752	3,395	3,706
Provision for loan losses before benefit attributable to FDIC loss share agreements	127	(23)	819	372
Benefits attributable to FDIC loss share agreements				23
Total provision for loan losses charged to operations	127	(23)	819	395
Provision for loan losses recorded through the FDIC loss share receivable				(23)
Reduction due to loan removals	(198)	(326)	(544)	(675)
Balance at the end of the period	3,670	3,403	3,670	3,403
Loans collectively evaluated for impairment	3,670	3,403	3,670	3,403
Loans:
Loans collectively evaluated for impairment	582,533	636,020	582,533	636,020
Carrying value	582,533	636,020	582,533	636,020	$ 605,941
Other commercial non-owner occupied real estate | Non-acquired loans
Allowance for loan losses:
Total provision for loan losses charged to operations			1,129	964
Other commercial non-owner occupied real estate | Acquired credit impaired loans
Loans:
Carrying value					210,204
Residential real estate | Acquired credit impaired loans
Allowance for loan losses:
Balance at the beginning of the period	2,741	2,592	2,419	2,986
Provision for loan losses before benefit attributable to FDIC loss share agreements	184	2	743	(178)
Benefits attributable to FDIC loss share agreements				23
Total provision for loan losses charged to operations	184	2	743	(155)
Provision for loan losses recorded through the FDIC loss share receivable				(23)
Reduction due to loan removals	(149)	(102)	(386)	(316)
Balance at the end of the period	2,776	2,492	2,776	2,492
Loans collectively evaluated for impairment	2,776	2,492	2,776	2,492
Loans:
Loans collectively evaluated for impairment	249,666	268,968	249,666	268,968
Carrying value	249,666	268,968	249,666	268,968	258,100
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	(88)	(795)
Loans individually evaluated for impairment	1,266	359	1,266	359
Loans collectively evaluated for impairment	4,706	3,752	4,706	3,752
Loans:
Loans individually evaluated for impairment	42,638	3,431	42,638	3,431
Loans collectively evaluated for impairment	724,319	558,905	724,319	558,905
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	92	151
Provision for loan losses before benefit attributable to FDIC loss share agreements	133
Total provision for loan losses charged to operations	133
Reduction due to loan removals	(36)	(6)
Balance at the end of the period	189	145	189	145
Loans collectively evaluated for impairment	189	145	189	145
Loans:
Loans collectively evaluated for impairment	46,248	47,081	46,248	47,081
Carrying value	46,248	47,081	46,248	47,081	44,373
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	(7)	(93)
Loans individually evaluated for impairment	133	181	133	181
Loans collectively evaluated for impairment	6,104	4,410	6,104	4,410
Loans:
Loans individually evaluated for impairment	716	764	716	764
Loans collectively evaluated for impairment	949,154	629,673	949,154	629,673
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	40	35
Provision for loan losses before benefit attributable to FDIC loss share agreements	(40)
Total provision for loan losses charged to operations	(40)
Reduction due to loan removals		5
Balance at the end of the period		40		40
Loans collectively evaluated for impairment		40		40
Loans:
Loans collectively evaluated for impairment	199,082	220,489	199,082	220,489
Carrying value	199,082	220,489	199,082	220,489	210,204
Consumer real estate | Acquired credit impaired loans
Allowance for loan losses:
Balance at the beginning of the period	548	778
Provision for loan losses before benefit attributable to FDIC loss share agreements	(85)	(23)
Total provision for loan losses charged to operations	(85)	(23)
Reduction due to loan removals	(1)	(211)
Balance at the end of the period	462	544	462	544
Loans collectively evaluated for impairment	462	544	462	544
Loans:
Loans collectively evaluated for impairment	53,302	61,866	53,302	61,866
Carrying value	53,302	61,866	53,302	61,866	59,300
Consumer real estate | Home equity loans | Non-acquired loans
Allowance for loan losses:
Total provision for loan losses charged to operations	(171)	69
Loans individually evaluated for impairment	116	38	116	38
Loans collectively evaluated for impairment	2,981	3,243	2,981	3,243
Loans:
Loans individually evaluated for impairment	2,623	1,599	2,623	1,599
Loans collectively evaluated for impairment	417,137	362,226	417,137	362,226
Commercial and industrial | Non-acquired loans
Allowance for loan losses:
Total provision for loan losses charged to operations	469	368	726	887
Loans individually evaluated for impairment	18	385	18	385
Loans collectively evaluated for impairment	5,185	4,325	5,185	4,325
Loans:
Loans individually evaluated for impairment	627	1,453	627	1,453
Loans collectively evaluated for impairment	781,130	616,072	781,130	616,072
Commercial and industrial | Acquired credit impaired loans
Allowance for loan losses:
Balance at the beginning of the period	320	196	238	174
Provision for loan losses before benefit attributable to FDIC loss share agreements	(65)	(2)	71	38
Total provision for loan losses charged to operations	(65)	(2)	71	38
Reduction due to loan removals	(12)	(12)	(66)	(30)
Balance at the end of the period	243	182	243	182
Loans collectively evaluated for impairment	243	182	243	182
Loans:
Loans collectively evaluated for impairment	25,796	26,658	25,796	26,658
Carrying value	25,796	26,658	25,796	26,658	25,347
Other income producing property | Non-acquired loans
Allowance for loan losses:
Total provision for loan losses charged to operations	(10)	(201)	(214)	(384)
Loans individually evaluated for impairment	211	289	211	289
Loans collectively evaluated for impairment	1,177	1,330	1,177	1,330
Loans:
Loans individually evaluated for impairment	3,605	4,319	3,605	4,319
Loans collectively evaluated for impairment	190,730	175,276	190,730	175,276
Consumer | Non-acquired loans
Allowance for loan losses:
Total provision for loan losses charged to operations	889	1,094
Loans individually evaluated for impairment	7	4	7	4
Loans collectively evaluated for impairment	2,685	2,304	2,685	2,304
Loans:
Loans individually evaluated for impairment	254	142	254	142
Loans collectively evaluated for impairment	371,504	305,545	371,504	305,545
Consumer | Acquired credit impaired loans
Allowance for loan losses:
Balance at the beginning of the period			558	313
Provision for loan losses before benefit attributable to FDIC loss share agreements			(85)	511
Total provision for loan losses charged to operations			(85)	511
Reduction due to loan removals			(11)	(281)
Balance at the end of the period	462	543	462	543
Loans:
Carrying value	53,302	61,866	53,302	61,866	59,300
Consumer | Home equity loans | Non-acquired loans
Allowance for loan losses:
Total provision for loan losses charged to operations			(6)	880
Commercial loans 1000000 or more | Acquired credit impaired loans
Loans:
Loans collectively evaluated for impairment	8,439	10,958	8,439	10,958
Carrying value	8,439	10,958	8,439	10,958	$ 8,617
Commercial | Acquired credit impaired loans
Allowance for loan losses:
Balance at the beginning of the period			41	56
Provision for loan losses before benefit attributable to FDIC loss share agreements			(40)	1
Total provision for loan losses charged to operations			(40)	1
Reduction due to loan removals			(1)	(16)
Balance at the end of the period		41		41
Commercial | Construction and land development | Non-acquired loans
Allowance for loan losses:
Total provision for loan losses charged to operations			1,819	(694)
Commercial | Construction and land development | Acquired credit impaired loans
Allowance for loan losses:
Balance at the beginning of the period			139	177
Provision for loan losses before benefit attributable to FDIC loss share agreements			130
Total provision for loan losses charged to operations			130
Reduction due to loan removals			(80)	(32)
Balance at the end of the period	$ 189	$ 145	$ 189	$ 145

Loans and Allowance for Loan 61

Loans and Allowance for Loan Losses - Credit risk profile by risk grade of non acquired loans - (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016	Dec. 31, 2015
Loans and Allowance for Loan Losses
Other Real Estate, Non Covered	$ 13,527	$ 18,316	$ 22,211	$ 24,803
Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	6,230,327	5,241,041	5,008,113
Non-acquired loans | Pass
Loans and Allowance for Loan Losses
Total loans	6,116,379	5,112,628	4,873,202
Non-acquired loans | Special mention
Loans and Allowance for Loan Losses
Total loans	77,757	89,489	93,239
Non-acquired loans | Substandard
Loans and Allowance for Loan Losses
Total loans	36,191	38,924	41,672
Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Total loans	1,455,555		885,657
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	1,455,555	836,699	885,657
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	1,417,304	812,320	860,150
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	24,570	13,355	14,066
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	13,681	11,024	11,441
Acquired credit impaired loans
Loans and Allowance for Loan Losses
Total loans	582,533		636,020
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	582,533	605,941	636,020
Acquired credit impaired loans | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	345,076	356,544	366,975
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	98,711	115,726	126,881
Acquired credit impaired loans | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	138,746	133,671	142,164
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		210,204
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		162,870
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		26,238
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		21,096
Residential real estate | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Total loans	249,666		268,968
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	249,666	258,100	268,968
Residential real estate | Acquired credit impaired loans | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	133,969	138,343	143,946
Residential real estate | 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	50,488	52,546	54,597
Residential real estate | Acquired credit impaired loans | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	65,209	67,211	70,425
Commercial non-owner occupied real estate | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	1,716,827	1,295,179	1,192,773
Commercial non-owner occupied real estate | Non-acquired loans | Construction and land development
Loans and Allowance for Loan Losses
Total loans	766,957	580,464	562,336
Commercial non-owner occupied real estate | Non-acquired loans | Construction and land development | Pass
Loans and Allowance for Loan Losses
Total loans	755,633	567,398	548,984
Commercial non-owner occupied real estate | Non-acquired loans | Construction and land development | Special mention
Loans and Allowance for Loan Losses
Total loans	7,445	8,421	8,492
Commercial non-owner occupied real estate | Non-acquired loans | Construction and land development | Substandard
Loans and Allowance for Loan Losses
Total loans	3,879	4,645	4,860
Commercial non-owner occupied real estate | Non-acquired loans | Other commercial non-owner occupied real estate
Loans and Allowance for Loan Losses
Total loans	949,870	714,715	630,437
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	939,125	701,150	615,521
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	8,475	11,434	11,499
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	2,270	2,131	3,417
Commercial non-owner occupied real estate | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Total loans	199,704		35,775
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	276,590	44,718	46,458
Commercial non-owner occupied real estate | Acquired non-credit impaired loans | Construction and land development
Loans and Allowance for Loan Losses
Total loans	76,886		10,683
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	76,886	10,090	10,683
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	74,665	8,997	9,562
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	1,403	253	278
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	818	840	843
Commercial non-owner occupied real estate | Acquired non-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	199,704	34,628	35,775
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	195,808	28,368	29,509
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	3,806	6,171	6,173
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	90	89	93
Commercial non-owner occupied real estate | Acquired credit impaired loans | Construction and land development
Loans and Allowance for Loan Losses
Total loans	46,248		47,081
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	46,248	44,373	47,081
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	26,666	21,150	20,889
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	6,455	12,643	14,092
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	13,127	10,580	12,100
Commercial non-owner occupied real estate | Acquired credit impaired loans | Other commercial non-owner occupied real estate
Loans and Allowance for Loan Losses
Total loans	199,082		220,489
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	199,082	210,204	220,489
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	152,305		164,737
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	22,638		32,081
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	24,139		23,671
Commercial owner occupied real estate loan | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	1,278,487	1,177,745	1,153,480
Commercial owner occupied real estate loan | Non-acquired loans | Pass
Loans and Allowance for Loan Losses
Total loans	1,247,881	1,149,417	1,118,421
Commercial owner occupied real estate loan | Non-acquired loans | Special mention
Loans and Allowance for Loan Losses
Total loans	24,277	22,133	26,429
Commercial owner occupied real estate loan | Non-acquired loans | Substandard
Loans and Allowance for Loan Losses
Total loans	6,329	6,195	8,630
Commercial owner occupied real estate loan | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Total loans	207,572		29,444
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	207,572	27,195	29,444
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	201,498	26,920	28,926
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	4,048
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	2,026	275	518
Consumer real estate | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	1,874,518	1,580,839	1,547,266
Consumer real estate | Non-acquired loans | Home equity loans
Loans and Allowance for Loan Losses
Total loans	419,760	383,218	363,825
Consumer real estate | Non-acquired loans | Home equity loans | Pass
Loans and Allowance for Loan Losses
Total loans	405,945	368,655	349,382
Consumer real estate | Non-acquired loans | Home equity loans | Special mention
Loans and Allowance for Loan Losses
Total loans	7,346	8,145	8,493
Consumer real estate | Non-acquired loans | Home equity loans | Substandard
Loans and Allowance for Loan Losses
Total loans	6,469	6,418	5,950
Consumer real estate | Non-acquired loans | Consumer
Loans and Allowance for Loan Losses
Total loans	2,258,921	1,918,481	1,864,740
Consumer real estate | Non-acquired loans | Consumer | Pass
Loans and Allowance for Loan Losses
Total loans	2,216,126	1,872,481	1,820,767
Consumer real estate | Non-acquired loans | Consumer | Special mention
Loans and Allowance for Loan Losses
Total loans	22,576	23,896	23,474
Consumer real estate | Non-acquired loans | Consumer | Substandard
Loans and Allowance for Loan Losses
Total loans	20,219	22,104	20,499
Consumer real estate | Non-acquired loans | Consumer Owner Occupied Loans
Loans and Allowance for Loan Losses
Total loans	1,454,758	1,197,621	1,183,441
Consumer real estate | Non-acquired loans | Consumer Owner Occupied Loans | Pass
Loans and Allowance for Loan Losses
Total loans	1,427,278	1,167,768	1,155,481
Consumer real estate | Non-acquired loans | Consumer Owner Occupied Loans | Special mention
Loans and Allowance for Loan Losses
Total loans	14,914	15,283	14,370
Consumer real estate | Non-acquired loans | Consumer Owner Occupied Loans | Substandard
Loans and Allowance for Loan Losses
Total loans	12,566	14,570	13,590
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	656,906	569,149	603,890
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	774,816	696,199	735,978
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	8,720	6,541	7,217
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	9,506	9,063	9,207
Consumer real estate | Acquired non-credit impaired loans | Home equity loans
Loans and Allowance for Loan Losses
Total loans	164,291		168,758
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	164,291	160,879	168,758
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	154,461	151,752	158,672
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	5,077	4,113	5,340
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	4,753	5,014	4,746
Consumer real estate | Acquired non-credit impaired loans | Consumer
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	136,136	142,654	148,512
Consumer real estate | Acquired non-credit impaired loans | Consumer | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	132,962	139,686	145,594
Consumer real estate | Acquired non-credit impaired loans | Consumer | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	1,141	1,102	1,118
Consumer real estate | Acquired non-credit impaired loans | Consumer | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	2,033	1,866	1,800
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	793,042	711,803	752,402
Consumer real estate | Acquired non-credit impaired loans | Consumer Owner Occupied Loans
Loans and Allowance for Loan Losses
Total loans	492,615		435,132
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	492,615	408,270	435,132
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	487,393	404,761	431,712
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	2,502	1,326	759
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	2,720	2,183	2,661
Consumer real estate | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Total loans	53,302		61,866
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	53,302	59,300	61,866
Commercial and industrial | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	781,757	671,398	617,525
Commercial and industrial | Non-acquired loans | Pass
Loans and Allowance for Loan Losses
Total loans	770,975	655,157	604,058
Commercial and industrial | Non-acquired loans | Special mention
Loans and Allowance for Loan Losses
Total loans	8,894	14,325	11,246
Commercial and industrial | Non-acquired loans | Substandard
Loans and Allowance for Loan Losses
Total loans	1,888	1,916	2,221
Commercial and industrial | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Total loans	101,427		14,201
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	101,427	13,641	14,201
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	95,523	13,475	14,016
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	5,385	117	122
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	519	49	63
Commercial and industrial | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Total loans	25,796		26,658
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	25,796	25,347	26,658
Commercial and industrial | Acquired credit impaired loans | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	15,755	17,371	18,715
Commercial and industrial | 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	1,397	4,614	4,476
Commercial and industrial | Acquired credit impaired loans | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	8,644	3,362	3,467
Other income producing property | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	194,335	178,238	179,595
Other income producing property | Non-acquired loans | Pass
Loans and Allowance for Loan Losses
Total loans	186,639	167,025	165,451
Other income producing property | Non-acquired loans | Special mention
Loans and Allowance for Loan Losses
Total loans	6,090	9,280	12,099
Other income producing property | Non-acquired loans | Substandard
Loans and Allowance for Loan Losses
Total loans	1,606	1,933	2,045
Other income producing property | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Total loans	76,924		43,152
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	76,924	39,342	43,152
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	74,994	38,361	42,159
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	1,208	273	276
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	722	708	717
Consumer | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	371,758	324,238	305,687
Consumer | Non-acquired loans | Pass
Loans and Allowance for Loan Losses
Total loans	370,258	322,654	304,117
Consumer | Non-acquired loans | Special mention
Loans and Allowance for Loan Losses
Total loans	316	468	611
Consumer | Non-acquired loans | Substandard
Loans and Allowance for Loan Losses
Total loans	1,184	1,116	959
Consumer | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Total loans	136,136		148,512
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	136,136	142,654	148,512
Consumer | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	53,302	59,300	61,866
Consumer | Acquired credit impaired loans | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	8,261	8,513	9,072
Consumer | 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	17,733	19,685	20,635
Consumer | Acquired credit impaired loans | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	27,308	31,102	32,159
Commercial | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	3,971,406	3,322,560	3,143,373
Commercial | Non-acquired loans | Pass
Loans and Allowance for Loan Losses
Total loans	3,900,253	3,240,147	3,052,435
Commercial | Non-acquired loans | Special mention
Loans and Allowance for Loan Losses
Total loans	55,181	65,593	69,765
Commercial | Non-acquired loans | Substandard
Loans and Allowance for Loan Losses
Total loans	15,972	16,820	21,173
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	662,513	124,896	133,255
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	642,488	116,121	124,172
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	15,850	6,814	6,849
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	4,175	1,961	2,234
Other loans | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	12,645	13,404	11,787
Other loans | Non-acquired loans | Pass
Loans and Allowance for Loan Losses
Total loans	12,645	13,404	11,787
Commercial loans 1000000 or more | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Total loans	8,439		10,958
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	8,439	8,617	10,958
Commercial loans 1000000 or more | Acquired credit impaired loans | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	8,120	8,297	9,616
Commercial loans 1000000 or more | 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			1,000
Commercial loans 1000000 or more | Acquired credit impaired loans | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	$ 319	$ 320	$ 342

Loans and Allowance for Loan 62

Loans and Allowance for Loan Losses - Aging analysis of past due loans - (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016
Non-acquired loans
Loans and Allowance for Loan Losses
Past due	$ 17,809	$ 15,345	$ 16,360
Current	6,212,518	5,225,696	4,991,753
Total loans	6,230,327	5,241,041	5,008,113
Non-acquired loans | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	7,953	6,223	6,380
Non-acquired loans | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	4,245	3,302	3,524
Non-acquired loans | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	5,611	5,820	6,456
Acquired credit impaired loans
Loans and Allowance for Loan Losses
Past due	23,968	24,066	22,679
Current	558,565	581,875	613,341
Total loans	582,533		636,020
Acquired credit impaired loans | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	6,632	6,887	6,556
Acquired credit impaired loans | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	4,218	2,356	4,586
Acquired credit impaired loans | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	13,118	14,823	11,537
Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Past due	11,247	4,484	4,675
Current	1,444,308	832,215	880,982
Total loans	1,455,555		885,657
Acquired non-credit impaired loans | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	4,986	1,380	1,663
Acquired non-credit impaired loans | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	2,628	1,265	859
Acquired non-credit impaired loans | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	3,633	1,839	2,153
Residential real estate | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Past due	13,506	12,570	11,992
Current	236,160	245,530	256,976
Total loans	249,666		268,968
Residential real estate | Acquired credit impaired loans | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	3,608	4,688	4,260
Residential real estate | Acquired credit impaired loans | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	2,750	1,105	2,015
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	7,148	6,777	5,717
Commercial non-owner occupied real estate | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	1,716,827	1,295,179	1,192,773
Commercial non-owner occupied real estate | Non-acquired loans | Construction and land development
Loans and Allowance for Loan Losses
Past due	1,287	1,595	1,876
Current	765,670	578,869	560,460
Total loans	766,957	580,464	562,336
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	728	256	548
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	76	313	249
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	483	1,026	1,079
Commercial non-owner occupied real estate | Non-acquired loans | Other commercial non-owner occupied real estate
Loans and Allowance for Loan Losses
Past due	678	1,016	1,630
Current	949,192	713,699	628,807
Total loans	949,870	714,715	630,437
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	26	647	655
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	567	232	768
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	85	137	207
Commercial non-owner occupied real estate | Acquired credit impaired loans | Construction and land development
Loans and Allowance for Loan Losses
Past due	3,495	4,269	3,374
Current	42,753	40,104	43,707
Total loans	46,248		47,081
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	22	168	266
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	234	489	1,971
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	3,239	3,612	1,137
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	3,849	3,597	3,947
Current	195,233	206,607	216,542
Total loans	199,082		220,489
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	2,018	573	896
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	404	357	238
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	1,427	2,667	2,813
Commercial non-owner occupied real estate | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Total loans	199,704		35,775
Commercial non-owner occupied real estate | Acquired non-credit impaired loans | Construction and land development
Loans and Allowance for Loan Losses
Past due	541	164	165
Current	76,345	9,926	10,518
Total loans	76,886		10,683
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	117	4	5
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	199
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	225	160	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	618		28
Current	199,086	34,628	35,747
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	618
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			28
Commercial owner occupied real estate loan | Non-acquired loans
Loans and Allowance for Loan Losses
Past due	4,506	3,707	3,133
Current	1,273,981	1,174,038	1,150,347
Total loans	1,278,487	1,177,745	1,153,480
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	2,382	1,272	1,795
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	300	957	71
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	1,824	1,478	1,267
Commercial owner occupied real estate loan | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Past due	1,320	106	738
Current	206,252	27,089	28,706
Total loans	207,572		29,444
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	330		326
Commercial owner occupied real estate loan | Acquired non-credit impaired loans | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	97		110
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	893	106	302
Consumer real estate | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	1,874,518	1,580,839	1,547,266
Consumer real estate | Non-acquired loans | Home equity loans
Loans and Allowance for Loan Losses
Past due	2,618	2,293	2,018
Current	417,142	380,925	361,807
Total loans	419,760	383,218	363,825
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	841	566	1,000
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	416	889	186
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	1,361	838	832
Consumer real estate | Non-acquired loans | Consumer Owner Occupied Loans
Loans and Allowance for Loan Losses
Past due	5,174	3,173	4,125
Current	1,449,584	1,194,448	1,179,316
Total loans	1,454,758	1,197,621	1,183,441
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	2,587	1,473	1,549
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	1,514	246	894
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	1,073	1,454	1,682
Consumer real estate | Non-acquired loans | Consumer
Loans and Allowance for Loan Losses
Total loans	2,258,921	1,918,481	1,864,740
Consumer real estate | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Total loans	53,302		61,866
Consumer real estate | Acquired non-credit impaired loans | Home equity loans
Loans and Allowance for Loan Losses
Past due	2,694	2,158	1,847
Current	161,597	158,721	166,911
Total loans	164,291		168,758
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	1,240	476	719
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	455	941	207
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	999	741	921
Consumer real estate | Acquired non-credit impaired loans | Consumer Owner Occupied Loans
Loans and Allowance for Loan Losses
Past due	2,700	699	778
Current	489,915	407,571	434,354
Total loans	492,615		435,132
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	1,404	330	140
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	535	113	417
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	761	256	221
Commercial and industrial | Non-acquired loans
Loans and Allowance for Loan Losses
Past due	2,026	1,594	1,642
Current	779,731	669,804	615,883
Total loans	781,757	671,398	617,525
Commercial and industrial | Non-acquired loans | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	772	1,033	229
Commercial and industrial | Non-acquired loans | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	1,162	216	739
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	92	345	674
Commercial and industrial | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Past due	1,246	606	677
Current	24,550	24,741	25,981
Total loans	25,796		26,658
Commercial and industrial | Acquired credit impaired loans | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	314	46	10
Commercial and industrial | Acquired credit impaired loans | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	571	24	30
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	361	536	637
Commercial and industrial | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Past due	1,311	2	38
Current	100,116	13,639	14,163
Total loans	101,427		14,201
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	749	2	38
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	464
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	98
Other income producing property | Non-acquired loans
Loans and Allowance for Loan Losses
Past due	428	551	918
Current	193,907	177,687	178,677
Total loans	194,335	178,238	179,595
Other income producing property | Non-acquired loans | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	76	310	318
Other income producing property | Non-acquired loans | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	100	94	187
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	252	147	413
Other income producing property | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Past due	265	132	26
Current	76,659	39,210	43,126
Total loans	76,924		43,152
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	164	131	26
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	64	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	37
Consumer | Non-acquired loans
Loans and Allowance for Loan Losses
Past due	1,092	1,416	1,018
Current	370,666	322,822	304,669
Total loans	371,758	324,238	305,687
Consumer | Non-acquired loans | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	541	666	286
Consumer | Non-acquired loans | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	110	355	430
Consumer | Non-acquired loans | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	441	395	302
Consumer | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Past due	1,872	3,024	2,689
Current	51,430	56,276	59,177
Consumer | Acquired credit impaired loans | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	670	1,412	1,124
Consumer | Acquired credit impaired loans | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	259	381	332
Consumer | Acquired credit impaired loans | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	943	1,231	1,233
Consumer | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Past due	1,798	1,223	1,055
Current	134,338	141,431	147,457
Total loans	136,136		148,512
Consumer | Acquired non-credit impaired loans | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	364	437	409
Consumer | Acquired non-credit impaired loans | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	814	210	97
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	620	576	549
Commercial | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	3,971,406	3,322,560	3,143,373
Other loans | Non-acquired loans
Loans and Allowance for Loan Losses
Current	12,645	13,404	11,787
Total loans	12,645	13,404	11,787
Commercial loans 1000000 or more | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Current	8,439	$ 8,617	10,958
Total loans	$ 8,439		$ 10,958

Loans and Allowance for Loan 63

Loans and Allowance for Loan Losses - Nonaccrual loans - (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Non acquired non-accrual loans
Loans and Allowance for Loan Losses
Nonaccrual loans	$ 12,367	$ 14,884	$ 12,367	$ 14,884	$ 14,464
Impaired non-acquired and acquired loans accounted under FASB ASC topic 310-20
Loans and Allowance for Loan Losses
Unpaid Contractual Principal Balance	74,409	35,011	74,409	35,011	35,079
Recorded Investment With No Allowance	7,182	7,755	7,182	7,755	7,736
Gross Recorded Investment With Allowance	53,610	13,432	53,610	13,432	13,475
Total Recorded Investment	60,792	21,187	60,792	21,187	21,211
Related Allowance	1,862	1,379	1,862	1,379	1,337
Average Investment In Impaired Loans	54,955	22,755	41,002	25,702
Interest Income Recognized	677	312	1,396	653
Acquired non-credit impaired non-accrual including restructured loans
Loans and Allowance for Loan Losses
Nonaccrual loans	5,457	4,633	5,457	4,633	4,728
Commercial non-owner occupied real estate | Non acquired non-accrual loans
Loans and Allowance for Loan Losses
Nonaccrual loans	2,812	1,757	2,812	1,757	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	57	1,156	57	1,156	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	2,755	601	2,755	601	578
Commercial non-owner occupied real estate | Impaired non-acquired and acquired loans accounted under FASB ASC topic 310-20 | Construction and land development
Loans and Allowance for Loan Losses
Unpaid Contractual Principal Balance	46,664	7,744	46,664	7,744	7,394
Recorded Investment With No Allowance	954	1,331	954	1,331	1,074
Gross Recorded Investment With Allowance	41,684	2,100	41,684	2,100	1,959
Total Recorded Investment	42,638	3,431	42,638	3,431	3,033
Related Allowance	1,266	359	1,266	359	348
Average Investment In Impaired Loans	36,337	3,762
Interest Income Recognized	486	31
Commercial non-owner occupied real estate | Impaired non-acquired and acquired loans accounted under FASB ASC topic 310-20 | Other commercial non-owner occupied real estate
Loans and Allowance for Loan Losses
Unpaid Contractual Principal Balance	2,361	2,372	2,361	2,372	2,417
Recorded Investment With No Allowance	207	228	207	228	223
Gross Recorded Investment With Allowance	509	536	509	536	583
Total Recorded Investment	716	764	716	764	806
Related Allowance	133	181	133	181	170
Average Investment In Impaired Loans	735	992
Interest Income Recognized	3
Commercial non-owner occupied real estate | Acquired non-credit impaired non-accrual including restructured loans
Loans and Allowance for Loan Losses
Nonaccrual loans	233	235	233	235	232
Commercial non-owner occupied real estate | Acquired non-credit impaired non-accrual including restructured loans | Construction and land development
Loans and Allowance for Loan Losses
Nonaccrual loans	233	235	233	235	232
Commercial owner occupied real estate loan | Non acquired non-accrual loans
Loans and Allowance for Loan Losses
Nonaccrual loans	557	2,049	557	2,049	2,189
Commercial owner occupied real estate loan | Impaired non-acquired and acquired loans accounted under FASB ASC topic 310-20
Loans and Allowance for Loan Losses
Unpaid Contractual Principal Balance	9,504	10,204	9,504	10,204	10,118
Recorded Investment With No Allowance	3,936	4,301	3,936	4,301	3,976
Gross Recorded Investment With Allowance	1,938	2,051	1,938	2,051	2,269
Total Recorded Investment	5,874	6,352	5,874	6,352	6,245
Related Allowance	64	65	64	65	67
Average Investment In Impaired Loans	5,964	6,662
Interest Income Recognized	63	150
Commercial owner occupied real estate loan | Acquired non-credit impaired non-accrual including restructured loans
Loans and Allowance for Loan Losses
Nonaccrual loans		302		302	61
Consumer real estate | Non acquired non-accrual loans
Loans and Allowance for Loan Losses
Nonaccrual loans	3,982	6,612	3,982	6,612	7,340
Consumer real estate | Non acquired non-accrual loans | Home equity loans
Loans and Allowance for Loan Losses
Nonaccrual loans	308	1,564	308	1,564	1,629
Consumer real estate | Non acquired non-accrual loans | Consumer Owner Occupied Loans
Loans and Allowance for Loan Losses
Nonaccrual loans	3,674	5,048	3,674	5,048	5,711
Consumer real estate | Impaired non-acquired and acquired loans accounted under FASB ASC topic 310-20 | Home equity loans
Loans and Allowance for Loan Losses
Unpaid Contractual Principal Balance	3,184	2,054	3,184	2,054	2,165
Recorded Investment With No Allowance	716	251	716	251	244
Gross Recorded Investment With Allowance	1,907	1,348	1,907	1,348	1,430
Total Recorded Investment	2,623	1,599	2,623	1,599	1,674
Related Allowance	116	38	116	38	40
Average Investment In Impaired Loans	2,624	1,888
Interest Income Recognized	29	13
Consumer real estate | Impaired non-acquired and acquired loans accounted under FASB ASC topic 310-20 | Consumer Owner Occupied Loans
Loans and Allowance for Loan Losses
Unpaid Contractual Principal Balance	5,986	4,390	5,986	4,390	7,090
Recorded Investment With No Allowance	1,369	1,284	1,369	1,284	2,120
Gross Recorded Investment With Allowance	3,086	1,843	3,086	1,843	3,553
Total Recorded Investment	4,455	3,127	4,455	3,127	5,673
Related Allowance	47	58	47	58	80
Average Investment In Impaired Loans	4,515	3,547
Interest Income Recognized	36	31
Consumer real estate | Acquired non-credit impaired non-accrual including restructured loans
Loans and Allowance for Loan Losses
Nonaccrual loans	3,704	2,700	3,704	2,700	3,048
Consumer real estate | Acquired non-credit impaired non-accrual including restructured loans | Home equity loans
Loans and Allowance for Loan Losses
Nonaccrual loans	1,813	1,588	1,813	1,588	1,643
Consumer real estate | Acquired non-credit impaired non-accrual including restructured loans | Consumer Owner Occupied Loans
Loans and Allowance for Loan Losses
Nonaccrual loans	1,891	1,112	1,891	1,112	1,405
Commercial and industrial | Non acquired non-accrual loans
Loans and Allowance for Loan Losses
Nonaccrual loans	1,952	587	1,952	587	420
Commercial and industrial | Impaired non-acquired and acquired loans accounted under FASB ASC topic 310-20
Loans and Allowance for Loan Losses
Unpaid Contractual Principal Balance	1,753	2,738	1,753	2,738	2,335
Recorded Investment With No Allowance		259		259
Gross Recorded Investment With Allowance	627	1,194	627	1,194	1,263
Total Recorded Investment	627	1,453	627	1,453	1,263
Related Allowance	18	385	18	385	386
Average Investment In Impaired Loans	912	1,110	945	1,470
Interest Income Recognized	8	16	30	28
Commercial and industrial | Acquired non-credit impaired non-accrual including restructured loans
Loans and Allowance for Loan Losses
Nonaccrual loans	114	1	114	1	1
Other income producing property | Non acquired non-accrual loans
Loans and Allowance for Loan Losses
Nonaccrual loans	1,083	584	1,083	584	356
Other income producing property | Impaired non-acquired and acquired loans accounted under FASB ASC topic 310-20
Loans and Allowance for Loan Losses
Unpaid Contractual Principal Balance	4,334	5,167	4,334	5,167	3,166
Recorded Investment With No Allowance		101		101	99
Gross Recorded Investment With Allowance	3,605	4,218	3,605	4,218	2,273
Total Recorded Investment	3,605	4,319	3,605	4,319	2,372
Related Allowance	211	289	211	289	242
Average Investment In Impaired Loans	3,623	4,659	2,989	4,605
Interest Income Recognized	50	71	153	157
Other income producing property | Acquired non-credit impaired non-accrual including restructured loans
Loans and Allowance for Loan Losses
Nonaccrual loans	107	149	107	149	145
Consumer | Non acquired non-accrual loans
Loans and Allowance for Loan Losses
Nonaccrual loans	1,123	796	1,123	796	930
Consumer | Impaired non-acquired and acquired loans accounted under FASB ASC topic 310-20
Loans and Allowance for Loan Losses
Unpaid Contractual Principal Balance	623	342	623	342	394
Gross Recorded Investment With Allowance	254	142	254	142	145
Total Recorded Investment	254	142	254	142	145
Related Allowance	7	4	7	4	4
Average Investment In Impaired Loans	245	135	200	122
Interest Income Recognized	2		5	3
Consumer | Impaired non-acquired and acquired loans accounted under FASB ASC topic 310-20 | Home equity loans
Loans and Allowance for Loan Losses
Average Investment In Impaired Loans			2,148	954
Interest Income Recognized			75	43
Consumer | Impaired non-acquired and acquired loans accounted under FASB ASC topic 310-20 | Consumer Owner Occupied Loans
Loans and Allowance for Loan Losses
Average Investment In Impaired Loans			5,064	5,338
Interest Income Recognized			110	78
Consumer | Acquired non-credit impaired non-accrual including restructured loans
Loans and Allowance for Loan Losses
Nonaccrual loans	1,299	1,246	1,299	1,246	1,241
Commercial | Impaired non-acquired and acquired loans accounted under FASB ASC topic 310-20
Loans and Allowance for Loan Losses
Average Investment In Impaired Loans			761	1,108
Interest Income Recognized			15	23
Commercial | Impaired non-acquired and acquired loans accounted under FASB ASC topic 310-20 | Construction and land development
Loans and Allowance for Loan Losses
Average Investment In Impaired Loans			22,835	4,856
Interest Income Recognized			800	88
Commercial | Impaired non-acquired and acquired loans accounted under FASB ASC topic 310-20 | Consumer Owner Occupied Loans
Loans and Allowance for Loan Losses
Average Investment In Impaired Loans			6,060	7,038
Interest Income Recognized			$ 208	233
Other loans | Impaired non-acquired and acquired loans accounted under FASB ASC topic 310-20
Loans and Allowance for Loan Losses
Average Investment In Impaired Loans				211
Restructured loans | ASC Topic 31020 Loans
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	$ 858	$ 2,499	$ 858	$ 2,499	$ 1,979

FDIC Indemnification Asset (Det

FDIC Indemnification Asset (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Jun. 23, 2016	Mar. 31, 2016	Dec. 31, 2015
Receivable from FDIC for Loss Share Agreements
Balance at beginning of period		$ 4,401
Decrease in expected losses on loans		(23)
Additional recoveries on OREO		(1,736)
Reimbursable expenses		71
Amortization of discounts and premiums, net		(1,475)
Payments to (from) FDIC		853
Termination of Loss Share Agreement		(2,091)
Payment to settle FDIC loss share agreements	$ 2,300
Amortization of FDIC indemnification assets, net		5,901
FDIC indemnification asset		$ 4,401		$ 2,100	$ 4,401
Covered loans			$ 87,400
Other Real Estate, Covered			$ 3,000		$ 5,751
Pre-tax charge	$ 4,400

Other Real Estate Owned (Detail

Other Real Estate Owned (Details) $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 30, 2017USD ($)	Sep. 30, 2016USD ($)	Dec. 31, 2016USD ($)	Sep. 30, 2017USD ($)property	Sep. 30, 2016USD ($)property
OREO
Balance at the beginning of the period	$ 18,316	$ 24,803	$ 24,803
Acquired in Southeastern Bank acquisition	385
Additions, net	8,375	9,296
Transfers		4,222
Write-downs	(2,220)	(1,939)
Sold	(11,329)	(14,171)
Balance at the end of the period	13,527	22,211	18,316
Number of properties uncovered | property					17
Carrying Value of uncovered OREO assets	18,316	24,803	24,803	$ 13,527	$ 22,211
Covered OREO
Balance at the beginning of the period		5,751	5,751
Additions, net		2,151
Transfers		(4,222)
Write-downs		(2,131)
Sold		(1,549)
Total
Balance at the beginning of the period	18,316	30,554	30,554
Acquired in Southeastern Bank acquisition	385
Additions, net	8,375	11,447
Write-downs	(2,220)	(4,070)
Sold	(11,329)	(15,720)
Balance at the end of the period	13,527	22,211	18,316
Number of properties held | property				67	108
Residential real estate included in OREO	1,400	3,700	3,600
Residential real estate consumer mortgage loans in foreclosure process	$ 7,000	$ 4,700	$ 5,100

Deposits - Total deposits - (De

Deposits - Total deposits - (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016
Deposits Disclosure Abstract
Certificates of deposit	$ 1,083,814	$ 872,773	$ 911,453
Interest-bearing demand deposits	4,102,391	3,461,004	3,358,647
Non-interest bearing demand deposits	2,505,570	2,199,046	2,176,155
Savings deposits	1,363,944	799,615	795,754
Other time deposits	6,302	1,985	5,397
Total deposits	$ 9,062,021	$ 7,334,423	$ 7,247,406

Deposits - Certificates of depo

Deposits - Certificates of deposits and Scheduled maturities of time deposits - (Details) - USD ($)	Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016
Deposits Disclosure Abstract
Aggregate amounts of certificates of deposits in denominations of $250,000 or more	$ 187,500,000	$ 83,700,000	$ 90,800,000
Increased insurance limit on deposit accounts	250,000
Traditional, out-of-market brokered deposits	$ 23,900,000	$ 2,900,000	$ 2,900,000

Retirement Plans - Non-contribu

Retirement Plans - Non-contributory defined benefit pension plan - (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Change in benefit obligation:
Interest cost	$ 281	$ 283	$ 843	$ 849
Components of net periodic pension cost and other amounts recognized in other comprehensive income
Interest cost	(281)	(283)	(843)	(849)
Expected return on plan assets	553	534	1,660	1,602
Recognized net actuarial loss	(188)	(204)	(564)	(612)
Net periodic pension benefit	$ 84	$ 47	$ 253	$ 141
Employee hired on or after January 1, 2006 | Maximum
Retirement Plans
Requisite age of employees for receiving retirement benefits under the new benefit formula			45 years
Defined benefit plan requisite service period under new benefit formula			5 years
Non-contributory defined benefit pension plan | Employees hired on or before December 31, 2005 | Minimum
Retirement Plans
Requisite age of employees for receiving retirement benefits under the plan			21 years

Retirement Plans - Safe Harbor

Retirement Plans - Safe Harbor plan - (Details) $ in Millions	Jan. 01, 2015	Sep. 30, 2017USD ($)	Sep. 30, 2016USD ($)	Sep. 30, 2017USD ($)	Sep. 30, 2016USD ($)
Employees' savings plan
Matching contribution by the company (as a percent)				100.00%
Defined contribution plan employer discretionary matching contribution percent	1
Expenses recognized under 401(K) plan		$ 2.1	$ 1.7	$ 5.5	$ 4.5
Minimum
Employees' savings plan
Age of employees to be eligible to participate in the defined contribution plan				21 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%

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	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Basic earnings per common share:
Net income	$ 35,046	$ 28,095	$ 85,133	$ 77,105
Weighted Average Number of Shares Outstanding, Basic	29,115	24,016	29,023	23,989
Basic earnings per common share (in dollars per share)	$ 1.20	$ 1.17	$ 2.92	$ 3.21
Diluted earnings per share:
Net income	$ 35,046	$ 28,095	$ 85,133	$ 77,105
Weighted Average Number of Shares Outstanding, Basic	29,115	24,016	29,023	23,989
Effect of dilutive securities (in shares)	270	262	268	240
Weighted-average dilutive shares	29,385	24,278	29,291	24,229
Diluted earnings per common share (in dollars per share)	$ 1.19	$ 1.16	$ 2.90	$ 3.18

Earnings Per Common Share - Cal

Earnings Per Common Share - Calculation of diluted EPS under Treasury method - (Details) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Earnings Per Share
Number of shares	34,712	52,064	34,712	72,480
Range of exercise prices, low end of range (in dollars per share)			$ 69.48	$ 61.42
Range of exercise prices, high end of range (in dollars per share)	$ 91.35	$ 69.48	$ 91.35	$ 69.48

Share-Based Compensation - Stoc

Share-Based Compensation - Stock Options - (Details) - USD ($) $ / shares in Units, $ in Thousands	Jan. 27, 2012	Sep. 30, 2017
Aggregate Intrinsic Value
Outstanding at the end of the period		$ 10,094
Exercisable at the end of the period		$ 9,096
Stock Options
Number of shares
Outstanding at the beginning of the period (in shares)		246,535
Granted (in shares)		33,634
Exercised (in shares)		(29,030)
Outstanding at the end of the period (in shares)		251,139
Exercisable at the end of the period (in shares)		181,152
Weighted-Average Exercise Price
Outstanding at the beginning of the period (in dollars per share)		$ 42.53
Granted (in dollars per share)		91.23
Exercised (in dollars per share)		34.09
Outstanding at the end of the period (in dollars per share)		50.02
Exercisable at the end of the period (in dollars per share)		39.84
Weighted-average fair value of options granted during the year (in dollars per share)		$ 35.42
Weighted-Average Remaining Contractual Life
Outstanding at the end of the period		5 years 1 month 24 days
Exercisable at the end of the period		3 months 26 days
Restricted Stock.
Number of shares
Forfeited (in shares)		(1,000)
Weighted-Average Exercise Price
Forfeited (in dollars per share)		$ 91.35
2012 plan
Share-Based Compensation
Number of shares registered under the 2012 plan		1,684,000
2012 plan | Restricted Stock. | Maximum
Share-Based Compensation
Number of shares registered under the 2012 plan		817,476
2004 plan
Number of shares
Granted (in shares)	0
Plan 2004 And 2012 | Incentive stock options
Share-Based Compensation
Vesting percentage		25.00%
Expiration period		10 years
Plan 2004 And 2012 | Incentive stock options | Maximum
Share-Based Compensation
Vesting period		4 years

Share-Based Compensation - Weig

Share-Based Compensation - Weighted average assumptions used in valuing options - (Details) - USD ($)	Jan. 21, 2016	Sep. 30, 2017	Sep. 30, 2016
Stock Options
Weighted-average assumptions
Dividend yield (as a percent)		1.40%	1.60%
Expected life		8 years 6 months	8 years 6 months
Expected volatility (as a percent)		37.20%	40.60%
Risk-free interest rate (as a percent)		2.43%	1.90%
Additional disclosures
Total unrecognized compensation cost related to non vested stock option grants		$ 1,500,000
Weighted-average period over which unrecognized compensation cost is expected to be recognized		1 year 4 months 17 days
Total fair value of shares vested during the period		$ 578,000
Restricted Stock.
Additional disclosures
Weighted-average period over which unrecognized compensation cost is expected to be recognized		2 years 2 months 23 days
Restricted Stock Activity and RSUs
Nonvested at the beginning of the period (in shares)		183,014
Granted (in shares)		21,683
Vested (in shares)		(52,153)
Nonvested at the end of the period (in shares)		151,544
Weighted-Average Grant-Date Fair Value
Nonvested at the beginning of the period (in dollars per share)		$ 51.88
Granted (in dollars per share)		88.63
Vested (in dollars per share)		47.82
Nonvested at the end of the period (in dollars per share)		$ 58.28
Additional disclosures
Total unrecognized compensation cost related to nonvested restricted stock and RSUs granted		$ 4,900,000
Total fair value of shares vested during the period		$ 2,600,000
Restricted Stock. | Employees | Minimum
Additional disclosures
Vesting period		4 years
Restricted Stock. | Non-employee directors | Maximum
Additional disclosures
Vesting period		12 months
Restricted Stock Units
Additional disclosures
Weighted-average period over which unrecognized compensation cost is expected to be recognized		1 year 9 months 18 days
Restricted Stock Activity and RSUs
Nonvested at the beginning of the period (in shares)		107,876
Granted (in shares)		66,655
Forfeited (in shares)		(3,951)
Nonvested at the end of the period (in shares)		170,580
Weighted-Average Grant-Date Fair Value
Nonvested at the beginning of the period (in dollars per share)		$ 66.37
Granted (in dollars per share)		89.01
Forfeited (in dollars per share)		63.93
Nonvested at the end of the period (in dollars per share)		$ 75.27
Additional disclosures
Total unrecognized compensation cost related to nonvested restricted stock and RSUs granted		$ 5,900,000
Total fair value of shares vested during the period		$ 2,300,000
Performance period		3 years
Target RSU award level (as a percent)		90.00%
Employee Stock Purchase Plan
Number Of Stock Issued Pursuant To Restricted Stock Units	57,455

Commitments and Contingent Li74

Commitments and Contingent Liabilities (Details) $ in Billions	Sep. 30, 2017USD ($)
Commitments and Contingent Liabilities
Commitments to extend credit and standby letters of credit	$ 2.2

Fair Value - Assets and liabili

Fair Value - Assets and liabilities measured at fair value on a recurring basis - (Details) - USD ($)	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Assets
Derivative financial instruments	$ 200,000
Securities available for sale	1,320,679,000	$ 925,374,000	$ 999,405,000
Liabilities
Derivative financial instruments	197,000
Government-sponsored entities debt
Assets
Securities available for sale	85,951,000	62,980,000	84,642,000
State and municipal obligations
Assets
Securities available for sale	204,294,000	117,324,000	107,402,000
Common Stock
Assets
Securities available for sale	2,957,000	3,793,000	3,784,000
Significant Unobservable Inputs (Level 3)
Assets
Mortgage servicing rights	29,937,000	23,064,000	29,037,000
Changes in fair value of assets
Changes in hierarchy classifications of Level 3 liabilities	0
Recurring basis
Assets
Derivative financial instruments	1,492,000	3,091,000	2,606,000
Loans held for sale	46,321,000	57,052,000	50,572,000
Securities available for sale	1,320,679,000	925,374,000	999,405,000
Mortgage servicing rights	29,937,000	23,064,000	29,037,000
Fair value of Assets, Total	1,398,429,000	1,008,581,000	1,081,620,000
Liabilities
Derivative financial instruments	1,301,000	1,100,000	730,000
Recurring basis | Government-sponsored entities debt
Assets
Securities available for sale	85,951,000	62,980,000	84,642,000
Recurring basis | State and municipal obligations
Assets
Securities available for sale	204,294,000	117,324,000	107,402,000
Recurring basis | Mortgage-backed securities
Assets
Securities available for sale	1,027,477,000	741,277,000	803,577,000
Recurring basis | Common Stock
Assets
Securities available for sale	2,957,000	3,793,000	3,784,000
Recurring basis | Quoted Prices In Active Markets for Identical Assets (Level 1)
Assets
Securities available for sale	1,732,000	2,568,000	2,559,000
Fair value of Assets, Total	1,732,000	2,568,000	2,559,000
Recurring basis | Quoted Prices In Active Markets for Identical Assets (Level 1) | Common Stock
Assets
Securities available for sale	1,732,000	2,568,000	2,559,000
Recurring basis | Significant Other Observable Inputs (Level 2)
Assets
Derivative financial instruments	1,492,000	3,091,000	2,606,000
Loans held for sale	46,321,000	57,052,000	50,572,000
Securities available for sale	1,318,947,000	922,806,000	996,846,000
Fair value of Assets, Total	1,366,760,000	982,949,000	1,050,024,000
Liabilities
Derivative financial instruments	1,301,000	1,100,000	730,000
Recurring basis | Significant Other Observable Inputs (Level 2) | Government-sponsored entities debt
Assets
Securities available for sale	85,951,000	62,980,000	84,642,000
Recurring basis | Significant Other Observable Inputs (Level 2) | State and municipal obligations
Assets
Securities available for sale	204,294,000	117,324,000	107,402,000
Recurring basis | Significant Other Observable Inputs (Level 2) | Mortgage-backed securities
Assets
Securities available for sale	1,027,477,000	741,277,000	803,577,000
Recurring basis | Significant Other Observable Inputs (Level 2) | Common Stock
Assets
Securities available for sale	1,225,000	1,225,000	1,225,000
Recurring basis | Significant Unobservable Inputs (Level 3)
Assets
Mortgage servicing rights	29,937,000	23,064,000	29,037,000
Fair value of Assets, Total	29,937,000	23,064,000	$ 29,037,000
Changes in fair value of assets
Fair value of assets at the beginning of the period	29,037,000	26,202,000
Servicing assets that resulted from transfers of financial assets	4,764,000	4,182,000
Changes in fair value assets due to valuation inputs or assumptions	(1,055,000)	(4,305,000)
Changes in fair value assets due to increased principal paydowns	2,809,000	3,015,000
Fair value of assets at the end of the period	29,937,000	23,064,000
Unrealized losses included in accumulated other comprehensive income related to Level 3 financial assets and liabilities	$ 0	$ 0

Fair Value - Assets and liabi76

Fair Value - Assets and liabilities measured at fair value on a nonrecurring basis - (Details) - USD ($) $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016	Dec. 31, 2015
Fair Value
Other Real Estate	$ 13,527	$ 22,211	$ 18,316	$ 30,554
Nonrecurring basis | OREO
Fair Value
Other Real Estate	13,527	22,211	18,316
Nonrecurring basis | Non-acquired Credit Impaired loans
Fair Value
Other Real Estate	5,588	4,360	6,611
Nonrecurring basis | Significant Unobservable Inputs (Level 3) | OREO
Fair Value
Other Real Estate	13,527	22,211	18,316
Nonrecurring basis | Significant Unobservable Inputs (Level 3) | Non-acquired Credit Impaired loans
Fair Value
Other Real Estate	$ 5,588	$ 4,360	$ 6,611
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%	7.00%	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)	23.00%	24.00%	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	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Jan. 03, 2017	Dec. 31, 2016
Financial assets:
Loans held for sale	$ 46,321	$ 57,052		$ 50,572
Financial liabilities:
Federal Funds Purchased and Securities Sold under Agreements to Repurchase.	291,099	305,268	$ 1,014	313,773
Increase (Decrease) in Loans Held-for-sale	533,647	533,393
Other borrowings	83,307	55,306		55,358
Carrying Amount
Financial assets:
Cash and cash equivalents	403,934	507,517		374,448
Investment securities	1,336,796	941,707		1,014,981
Loans held for sale	46,321	57,052		50,572
Loans, net of allowance for loan losses	8,223,204	6,489,068		6,643,326
Interest Receivable	25,172	17,501		18,618
Mortgage servicing rights	29,937	23,064		29,037
Interest rate swap - non-designated hedge	200			203
Other derivative financial instruments (Mortgage - banking related)	1,292	3,091		2,403
Financial liabilities:
Deposits	9,062,021	7,247,406		7,334,423
Federal Funds Purchased and Securities Sold under Agreements to Repurchase.	291,099	305,268		313,773
Other borrowings	83,307	55,306		55,358
Interest Payable	1,810	1,384		1,359
Interest rate swap - non-designated hedge	197			181
Interest rate swap - cash flow hedge	329	655		498
Other derivative financial instruments (Mortgage banking related)	775	444		51
Fair Value.
Financial assets:
Cash and cash equivalents	403,934	507,517		374,448
Investment securities	1,336,850	941,932		1,015,137
Loans held for sale	46,321	57,052		50,572
Loans, net of allowance for loan losses	8,284,002	6,667,622		6,649,575
Interest Receivable	25,172	17,501		18,618
Mortgage servicing rights	29,937	23,064		29,037
Interest rate swap - non-designated hedge	200			203
Other derivative financial instruments (Mortgage - banking related)	1,292	3,091		2,403
Financial liabilities:
Deposits	8,512,681	7,015,012		6,935,867
Federal Funds Purchased and Securities Sold under Agreements to Repurchase.	291,099	305,268		313,773
Other borrowings	85,344	49,781		54,379
Interest Payable	1,810	1,384		1,359
Interest rate swap - non-designated hedge	197			181
Interest rate swap - cash flow hedge	329	655		498
Other derivative financial instruments (Mortgage banking related)	775	444		51
Commitments to extend credit | Fair Value.
Financial liabilities:
Commitments to extend credit	15,968			1,587
Standby letters of credit and financial guarantees | Fair Value.
Financial liabilities:
Commitments to extend credit		45,285
Quoted Prices In Active Markets for Identical Assets (Level 1)
Financial assets:
Cash and cash equivalents	403,934	507,517		374,448
Investment securities	14,171	12,050		12,041
Significant Other Observable Inputs (Level 2)
Financial assets:
Investment securities	1,322,679	929,882		1,003,096
Loans held for sale	46,321	57,052		50,572
Interest Receivable	5,373	3,528		3,642
Interest rate swap - non-designated hedge	200			203
Other derivative financial instruments (Mortgage - banking related)	1,292	3,091		2,403
Financial liabilities:
Deposits	8,512,681	7,015,012		6,935,867
Federal Funds Purchased and Securities Sold under Agreements to Repurchase.	291,099	305,268		313,773
Other borrowings	85,344	49,781		54,379
Interest Payable	1,810	1,384		1,359
Interest rate swap - non-designated hedge	197			181
Interest rate swap - cash flow hedge	329	655		498
Other derivative financial instruments (Mortgage banking related)	775	444		51
Significant Other Observable Inputs (Level 2) | Commitments to extend credit
Financial liabilities:
Commitments to extend credit	15,968			1,587
Significant Other Observable Inputs (Level 2) | Standby letters of credit and financial guarantees
Financial liabilities:
Commitments to extend credit		45,285
Significant Unobservable Inputs (Level 3)
Financial assets:
Loans, net of allowance for loan losses	8,284,002	6,667,622		6,649,575
Interest Receivable	19,799	13,973		14,976
Mortgage servicing rights	29,937	23,064		29,037
Recurring basis
Financial assets:
Loans held for sale	46,321	57,052		50,572
Mortgage servicing rights	29,937	23,064		29,037
Recurring basis | Significant Other Observable Inputs (Level 2)
Financial assets:
Loans held for sale	46,321	57,052		50,572
Recurring basis | Significant Unobservable Inputs (Level 3)
Financial assets:
Mortgage servicing rights	$ 29,937	$ 23,064		$ 29,037

Accumulated Other Comprehensi78

Accumulated Other Comprehensive Income (Loss) - Changes in components of AOCI - (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Accumulated Other Comprehensive Income (Loss)
Balance at the beginning of the period			$ (8,211)
Other comprehensive income (loss), net of tax	$ (91)	$ (2,515)	4,423	$ 7,866
Balance at the end of the period	(3,788)	3,995	(3,788)	3,995
Amortization of defined benefit pension
Accumulated Other Comprehensive Income (Loss)
Balance at the beginning of the period	(5,962)	(5,762)	(6,195)	(6,015)
Amounts reclassified from accumulated other comprehensive income (loss)	116	126	349	379
Other comprehensive income (loss), net of tax	116	126	349	379
Balance at the end of the period	(5,846)	(5,636)	(5,846)	(5,636)
Unrealized gains and losses on securities
Accumulated Other Comprehensive Income (Loss)
Balance at the beginning of the period	2,506	12,752	(1,708)	2,588
Other comprehensive income (loss) before reclassifications	80	(2,715)	4,362	7,524
Amounts reclassified from accumulated other comprehensive income (loss)	(325)		(393)	(75)
Other comprehensive income (loss), net of tax	(245)	(2,715)	3,969	7,449
Balance at the end of the period	2,261	10,037	2,261	10,037
Gains on sales of available for sale securities
Accumulated Other Comprehensive Income (Loss)
Balance at the beginning of the period	(241)	(480)	(308)	(444)
Other comprehensive income (loss) before reclassifications	3	32	(35)	(91)
Amounts reclassified from accumulated other comprehensive income (loss)	35	42	140	129
Other comprehensive income (loss), net of tax	38	74	105	38
Balance at the end of the period	(203)	(406)	(203)	(406)
Accumulated Other Comprehensive Income (Loss).
Accumulated Other Comprehensive Income (Loss)
Balance at the beginning of the period	(3,697)	6,510	(8,211)	(3,871)
Other comprehensive income (loss) before reclassifications	83	(2,683)	4,327	7,433
Amounts reclassified from accumulated other comprehensive income (loss)	(174)	168	96	433
Other comprehensive income (loss), net of tax	(91)	(2,515)	4,423	7,866
Balance at the end of the period	$ (3,788)	$ 3,995	$ (3,788)	$ 3,995

Accumulated Other Comprehensi79

Accumulated Other Comprehensive Income (Loss) - Reclassifications out of AOCI - (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Reclassifications out of accumulated other comprehensive income, net of tax
Interest expense	$ (4,092)	$ (2,036)	$ (11,464)	$ (6,229)
Securities gains, net	1,278		1,388	122
Other-than-temporary impairment on securities			753
Provision for income taxes	(17,677)	(14,387)	(40,710)	(39,368)
Net income	35,046	28,095	85,133	77,105
Amount Reclassified from Accumulated Other Comprehensive Loss
Reclassifications out of accumulated other comprehensive income, net of tax
Net income	(640)	168	(370)	433
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)	(35)	(42)	(140)	(129)
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	57	69	226	209
Provision for income taxes	(22)	(27)	(86)	(80)
Net income	35	42	140	129
Unrealized gains and losses on securities
Reclassifications out of accumulated other comprehensive income, net of tax
Amounts reclassified from accumulated other comprehensive income (loss)	325		393	75
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	(1,278)		(1,388)	(122)
Provision for income taxes	487		529	47
Net income	(791)		(859)	(75)
Other-than-temporary impairment losses on available for sale securities
Reclassifications out of accumulated other comprehensive income, net of tax
Other-than-temporary impairment on securities	(753)		(753)
Provision for income taxes	(287)		(287)
Net income	466		466
Amortization of defined benefit pension
Reclassifications out of accumulated other comprehensive income, net of tax
Amounts reclassified from accumulated other comprehensive income (loss)	(116)	(126)	(349)	(379)
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	188	204	564	612
Provision for income taxes	(72)	(78)	(215)	(233)
Net income	$ 116	$ 126	$ 349	$ 379

Derivative Financial Instrume80

Derivative Financial Instruments (Details)	Jan. 03, 2017USD ($)derivative	Jan. 02, 2017	Sep. 30, 2017USD ($)	Sep. 30, 2016USD ($)	Sep. 30, 2017USD ($)	Sep. 30, 2016USD ($)	Dec. 31, 2016USD ($)	Dec. 28, 2016contract	Dec. 31, 2009USD ($)
Derivative Financial Instruments
Notional amount			$ 27,000,000		$ 27,000,000
Estimated gain (loss) on fair value of open contracts related to mortgage servicing rights					775,000	$ 42,000
After-tax unrealized gain on cash flow hedge in other comprehensive income			38,000	$ 74,000	105,000	38,000
Cash flow hedge liability			328,000		328,000		$ 655,000
Ineffectiveness in the cash flow hedge			0	0	0	0
Collateral provided			450,000	750,000	450,000	750,000
Number of interest rate swaps contracts that were classified as non-designated hedges | contract								2
Number of interest rate swaps held to facilitate a risk management strategy | contract								1
Interest Rate Derivative Assets, at Fair Value			200,000		200,000
Interest Rate Derivative Liabilities, at Fair Value			197,000		197,000
Interest Rate Derivatives, at Fair Value, Net			3,000		3,000
Additional collateral required relating to a default provision in the derivative relationship			300,000		300,000
5.35 % Rate of interest
Derivative Financial Instruments
Junior subordinated debt issued by capital trusts	$ 10,000,000
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			90,452,000	155,747,000	90,452,000	155,747,000	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			(22,613,000)	116,810,000	(22,613,000)	116,810,000	64,083,000
Interest rate contracts | 3 month LIBOR
Derivative Financial Instruments
Notional amount			$ 8,000,000		$ 8,000,000
Interest rate contracts | Cash flow hedge
Derivative Financial Instruments
Notional amount									$ 8,000,000
Interest rate contracts | Cash flow hedge | 3 month LIBOR
Derivative Financial Instruments
Fixed rate payable on notional amount (as a percent)			4.06%		4.06%
Fixed interest rate on interest rate swap (as a percent)			4.06%		4.06%
Mortgage servicing rights hedging | Non-designated hedges
Derivative Financial Instruments
Notional amount			$ 108,500,000		$ 108,500,000		128,500,000
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
Obligation			941,000	3,049,000	941,000	3,049,000	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			89,593,000	146,000,000	89,593,000	146,000,000	97,092,000
Fair value of forward commitments			$ 3,000	$ 445,000	$ 3,000	$ 445,000	$ (1,366,000)
SBFC | Junior Subordinated Debt
Derivative Financial Instruments
Junior subordinated debt issued by capital trusts	$ 20,600,000
SBFC | 3 month LIBOR
Derivative Financial Instruments
Spread on variable rate basis on junior subordinated debt (as a percent)	(2.36%)	1.40%
SBFC | Interest rate contracts
Derivative Financial Instruments
Notional amount	$ 10,000,000
Number of interest rate swaps acquired | derivative	2
SBFC | Interest rate contracts | 5.35 % Rate of interest
Derivative Financial Instruments
Fixed rate payable on notional amount (as a percent)	5.35%
Fixed interest rate on interest rate swap (as a percent)	5.35%

Capital Ratios (Details)

Capital Ratios (Details) - USD ($) $ in Thousands	Jan. 01, 2019	Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016
Common equity Tier 1 to risk-weighted assets
Actual, Capital Amount		$ 1,013,065	$ 788,544	$ 765,032
Actual, Ratio (as a percent)		12.11%	11.66%	11.48%
Minimum capital required, Ratio (as a percent)		4.50%
Required to be considered well capitalized, Capital Amount		$ 543,709	$ 439,755	$ 433,170
Required to be considered well capitalized, Ratio (as a percent)		6.50%	6.50%	6.50%
Tier I capital to risk-weighted assets
Actual, Capital Amount		$ 1,084,145	$ 841,266	$ 817,746
Actual, Ratio (as a percent)		12.96%	12.43%	12.27%
Minimum capital required, Ratio (as a percent)		6.00%	4.00%
Required to be considered well capitalized, Capital Amount		$ 669,180	$ 541,237	$ 533,132
Required to be considered well capitalized, Ratio (as a percent)		8.00%	8.00%	8.00%
Total capital to risk-weighted assets
Actual, Capital Amount		$ 1,129,742	$ 881,957	$ 858,813
Actual, Ratio (as a percent)		13.51%	13.04%	12.89%
Minimum capital required, Ratio (as a percent)		8.00%
Required to be considered well capitalized, Capital Amount		$ 836,475	$ 676,546	$ 666,415
Required to be considered well capitalized, Ratio (as a percent)		10.00%	10.00%	10.00%
Tier I capital to average assets (leverage ratio)
Actual, Capital Amount		$ 1,084,145	$ 841,266	$ 817,746
Actual, Ratio (as a percent)		10.34%	9.88%	9.74%
Minimum capital required, Ratio (as a percent)		4.00%
Required to be considered well capitalized, Capital Amount		$ 524,082	$ 425,765	$ 419,964
Required to be considered well capitalized, Ratio (as a percent)		5.00%	5.00%	5.00%
Phase-In Schedule
Common equity Tier 1 to risk-weighted assets
Minimum capital required, Capital Amount		$ 480,973	$ 346,730	$ 341,538
Minimum capital required, Ratio (as a percent)		5.75%	5.125%	5.125%
Tier I capital to risk-weighted assets
Minimum capital required, Capital Amount		$ 606,444	$ 448,212	$ 441,500
Minimum capital required, Ratio (as a percent)		7.25%	6.625%	6.625%
Total capital to risk-weighted assets
Minimum capital required, Capital Amount		$ 773,739	$ 583,521	$ 574,783
Minimum capital required, Ratio (as a percent)		9.25%	8.625%	8.625%
Tier I capital to average assets (leverage ratio)
Minimum capital required, Capital Amount		$ 419,265	$ 340,612	$ 335,972
Minimum capital required, Ratio (as a percent)		4.00%	4.00%	4.00%
Fully Phased-In
Common equity Tier 1 to risk-weighted assets
Minimum capital required, Capital Amount		$ 585,532	$ 473,582	$ 466,491
Minimum capital required, Ratio (as a percent)		7.00%	7.00%	7.00%
Tier I capital to risk-weighted assets
Minimum capital required, Capital Amount		$ 711,004	$ 575,064	$ 566,453
Minimum capital required, Ratio (as a percent)		8.50%	8.50%	8.50%
Total capital to risk-weighted assets
Minimum capital required, Capital Amount		$ 878,299	$ 710,374	$ 699,736
Minimum capital required, Ratio (as a percent)		10.50%	10.50%	10.50%
Tier I capital to average assets (leverage ratio)
Minimum capital required, Capital Amount		$ 419,265	$ 340,612	$ 335,972
Minimum capital required, Ratio (as a percent)		4.00%	4.00%	4.00%
Forecast
Capital ratios
Capital conversion buffer common equity Tier 1 of risk-weighted assets (as a percent)	2.50%
South State Bank (the Bank)
Common equity Tier 1 to risk-weighted assets
Actual, Capital Amount		$ 1,050,203	$ 815,823	$ 790,497
Actual, Ratio (as a percent)		12.56%	12.06%	11.86%
Required to be considered well capitalized, Capital Amount		$ 543,713	$ 439,627	$ 433,112
Required to be considered well capitalized, Ratio (as a percent)		6.50%	6.50%	6.50%
Tier I capital to risk-weighted assets
Actual, Capital Amount		$ 1,050,203	$ 815,823	$ 790,497
Actual, Ratio (as a percent)		12.56%	12.06%	11.86%
Required to be considered well capitalized, Capital Amount		$ 669,185	$ 541,079	$ 533,061
Required to be considered well capitalized, Ratio (as a percent)		8.00%	8.00%	8.00%
Total capital to risk-weighted assets
Actual, Capital Amount		$ 1,095,624	$ 856,388	$ 831,429
Actual, Ratio (as a percent)		13.10%	12.66%	12.48%
Required to be considered well capitalized, Capital Amount		$ 836,481	$ 676,349	$ 666,326
Required to be considered well capitalized, Ratio (as a percent)		10.00%	10.00%	10.00%
Tier I capital to average assets (leverage ratio)
Actual, Capital Amount		$ 1,050,203	$ 815,823	$ 790,497
Actual, Ratio (as a percent)		10.02%	9.58%	9.42%
Required to be considered well capitalized, Capital Amount		$ 523,935	$ 425,604	$ 419,748
Required to be considered well capitalized, Ratio (as a percent)		5.00%	5.00%	5.00%
South State Bank (the Bank) | Phase-In Schedule
Common equity Tier 1 to risk-weighted assets
Minimum capital required, Capital Amount		$ 480,977	$ 346,629	$ 341,492
Minimum capital required, Ratio (as a percent)		5.75%	5.125%	5.125%
Tier I capital to risk-weighted assets
Minimum capital required, Capital Amount		$ 606,449	$ 448,081	$ 441,441
Minimum capital required, Ratio (as a percent)		7.25%	6.625%	6.625%
Total capital to risk-weighted assets
Minimum capital required, Capital Amount		$ 773,745	$ 583,351	$ 574,706
Minimum capital required, Ratio (as a percent)		9.25%	8.625%	8.625%
Tier I capital to average assets (leverage ratio)
Minimum capital required, Capital Amount		$ 419,148	$ 340,483	$ 335,798
Minimum capital required, Ratio (as a percent)		4.00%	4.00%	4.00%
South State Bank (the Bank) | Fully Phased-In
Common equity Tier 1 to risk-weighted assets
Minimum capital required, Capital Amount		$ 585,537	$ 473,444	$ 466,428
Minimum capital required, Ratio (as a percent)		7.00%	7.00%	7.00%
Tier I capital to risk-weighted assets
Minimum capital required, Capital Amount		$ 711,009	$ 574,896	$ 566,377
Minimum capital required, Ratio (as a percent)		8.50%	8.50%	8.50%
Total capital to risk-weighted assets
Minimum capital required, Capital Amount		$ 878,305	$ 710,166	$ 699,643
Minimum capital required, Ratio (as a percent)		10.50%	10.50%	10.50%
Tier I capital to average assets (leverage ratio)
Minimum capital required, Capital Amount		$ 419,148	$ 340,483	$ 335,798
Minimum capital required, Ratio (as a percent)		4.00%	4.00%	4.00%

Goodwill and Other Intangible82

Goodwill and Other Intangible Assets - Summary of changes - (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Jan. 03, 2017
Goodwill
Goodwill, Beginning Balance	$ 338,340
Goodwill, Ending Balance	597,236
Core deposit intangible		$ 18,120
SBFC
Goodwill
Additions, Goodwill from acquisition or merger	$ 258,900

Goodwill and Other Intangible83

Goodwill and Other Intangible Assets - Summary of gross carrying amounts - (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Other intangible assets
Gross carrying amount	$ 100,274	$ 82,154	$ 100,274	$ 82,154	$ 82,154
Accumulated amortization	(49,802)	(40,416)	(49,802)	(40,416)	(42,306)
Net carrying amount	50,472	41,738	50,472	41,738	$ 39,848
Amortization expense	2,494	1,891	7,496	5,687
Amortization of Intangible Assets	2,494	$ 1,891	7,496	$ 5,687
Estimated amortization expense for other intangibles for each of the next five quarters
December 31, 2017	2,494		2,494
March 31, 2018	2,331		2,331
June 30, 2018	2,319		2,319
September 30, 2018	2,318		2,318
December 31, 2018	2,317		2,317
Thereafter	$ 38,693		$ 38,693
Minimum
Other intangible assets
Estimated useful lives			2 years
Maximum
Other intangible assets
Estimated useful lives			15 years

Loan Servicing, Mortgage Orig84

Loan Servicing, Mortgage Origination, and Loans Held for Sale (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Loans held for sale, loan servicing and mortgage origination
Contractually specified servicing fees earned			$ 5,400	$ 5,100
Mortgage servicing rights	$ 29,937	$ 23,064	29,937	23,064	$ 29,037
Changes in the fair value of MSRs and its offsetting hedge.
Increase (decrease) in fair value of MSRs			(1,055)
Decay of MSRs			(2,809)
Gains (losses) related to derivatives			1,010
Net effect on Statements of Income			$ (2,854)
MSRs
Changes in the fair value of MSRs and its offsetting hedge.
Increase (decrease) in fair value of MSRs	(684)	171		(4,305)
Decay of MSRs	(977)	(1,245)		(3,015)
Gains (losses) related to derivatives	(85)	(492)		4,521
Net effect on Statements of Income	$ (1,746)	$ (1,566)		$ (2,799)
Characteristics and sensitivity analysis of the MSR
Residential Mortgages Serviced for Others Percentage	100.00%	100.00%	100.00%	100.00%	100.00%
Weighted average life			7 years 4 months 17 days	5 years 9 months 18 days	7 years 8 months 12 days
Constant prepayment rate (as a percent)			8.30%	12.30%	7.70%
Weighted average discount rate (as a percent)			9.50%	9.80%	9.80%
Effect on fair value due to change in interest rates:
25 basis point increase	$ 1,605	$ 2,093	$ 1,605	$ 2,093	$ 1,399
50 basis point increase	2,934	3,968	2,934	3,968	2,557
25 basis point decrease	1,940	2,398	1,940	2,398	1,713
50 basis point decrease	4,249	4,845	4,249	4,845	$ 3,670
Custodial escrow balances maintained in connection with the loan servicing	$ 28,400	$ 24,300	$ 28,400	$ 24,300
Fixed-rate mortgage loans
Characteristics and sensitivity analysis of the MSR
Residential Mortgages Serviced for Others Percentage	99.70%	99.50%	99.70%	99.50%	99.60%
Adjustable-rate mortgage loans
Characteristics and sensitivity analysis of the MSR
Residential Mortgages Serviced for Others Percentage	0.30%	0.50%	0.30%	0.50%	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	$ 2,900,000	$ 2,700,000	$ 2,700,000
Contractually specified servicing fees earned	$ 1,800	$ 1,700

Loan Servicing, Mortgage Orig85

Loan Servicing, Mortgage Origination, and Loans Held for Sale - Mandatory cash forwards - (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Mortgage loan securitizations, mandatory cash forwards, and whole loan sales
Loan sales	$ 206.8	$ 215.2	$ 565.1	$ 530.6
Loan securitizations and loan sales	$ 149.8	$ 175.2	$ 424	$ 418.8
Percentage of loan securitizations and loan sales	72.40%	81.40%	75.00%	78.90%
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	$ 46.3	$ 57.1	$ 46.3	$ 57.1	$ 50.6
Loans Held-for-sale, Mortgages	$ 46.3	$ 57.1	$ 46.3	$ 57.1	$ 50.6
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

Investments in Qualified Affo86

Investments in Qualified Affordable Housing Projects (Details) - USD ($)	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Investment In Qualified Affordable Housing Projects.
Tax Credits and Benefits	$ 2,300,000	$ 1,800,000
Amortization		1,100,000
Share of book losses	1,800,000
Carrying value	32,000,000	27,200,000
Original Investment Value	40,800,000	40,800,000
Funding obligation	14,200,000	$ 14,700,000
Amount repaid	$ 0

Repurchase Agreements (Details)

Repurchase Agreements (Details) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016
Secured Debt, Repurchase Agreements
Carrying amount of securities sold under repurchase agreements with customers	$ 240.2	$ 238.3	$ 238.6
Carrying amount of the securities pledged to collateralize repurchase agreements	$ 240.2	$ 238.3	$ 238.6

Subsequent Events (Details)

Subsequent Events (Details) - shares	Oct. 25, 2017	Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016
Subsequent events
Common Stock, Shares Authorized		40,000,000	40,000,000	40,000,000
Subsequent event
Subsequent events
Common Stock, Shares Authorized	80,000,000