State Bank Financial (STBZ) 10-Q 4 Aug 17 2017 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2017	Aug. 03, 2017
Document and Entity Information [Abstract]
Entity Registrant Name	STATE BANK FINANCIAL CORP
Entity Central Index Key	1,497,275
Document Type	10-Q
Document Period End Date	Jun. 30, 2017
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding (shares)		38,966,939
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q2

CONSOLIDATED STATEMENTS OF FINA

CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Assets
Cash and amounts due from depository institutions	$ 11,284	$ 13,219
Interest-bearing deposits in other financial institutions	126,390	132,851
Federal funds sold	0	3,523
Cash and cash equivalents	137,674	149,593
Investment securities available-for-sale	847,795	847,178
Investment securities held-to-maturity (fair value of $63,729 and $67,435, respectively)	63,104	67,063
Loans	2,881,000	2,814,572
Allowance for loan and lease losses	(27,988)	(26,598)
Loans, net	2,853,012	2,787,974
Loans held-for-sale (includes loans at fair value of $31,422 and $35,813, respectively)	48,895	52,169
Other real estate owned	2,407	10,897
Premises and equipment, net	51,170	52,056
Goodwill	77,476	77,084
Other intangibles, net	11,599	12,749
SBA servicing rights	3,828	3,477
Bank-owned life insurance	66,320	65,371
Other assets	70,697	99,654
Total assets	4,233,977	4,225,265
Liabilities:
Noninterest-bearing deposits	1,009,509	984,419
Interest-bearing deposits	2,443,183	2,446,746
Total deposits	3,452,692	3,431,165
Federal funds purchased and securities sold under agreements to repurchase	25,256	27,673
FHLB borrowings	80,000	47,014
Notes payable	398	398
Other liabilities	43,294	105,382
Total liabilities	3,601,640	3,611,632
Shareholders' equity:
Preferred stock, $1 par value; 2,000,000 shares authorized, no shares issued and outstanding	0	0
Common stock, $.01 par value; 100,000,000 shares authorized; 38,967,972 and 38,845,573 shares issued and outstanding, respectively	390	388
Additional paid-in capital	411,760	409,736
Retained earnings	221,746	205,966
Accumulated other comprehensive income (loss), net of tax	(1,559)	(2,457)
Total shareholders' equity	632,337	613,633
Total liabilities and shareholders' equity	$ 4,233,977	$ 4,225,265

CONSOLIDATED STATEMENTS OF FIN3

CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Statement of Financial Position [Abstract]
Investment securities held-to-maturity - fair value	$ 63,729	$ 67,435
Loans held-for-sale at fair value	$ 31,422	$ 35,813
Preferred stock, par value (in dollars per share)	$ 1	$ 1
Preferred stock, shares authorized (in shares)	2,000,000	2,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	100,000,000	100,000,000
Common stock, shares issued (in shares)	38,967,972	38,845,573
Common stock, shares outstanding (in shares)	38,967,972	38,845,573

CONSOLIDATED STATEMENTS OF INCO

CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Interest income:
Loans	$ 34,872	$ 25,406	$ 68,932	$ 49,748
Loan accretion	9,228	13,961	16,905	23,704
Investment securities	5,655	4,660	11,023	9,213
Deposits with other financial institutions	92	66	184	186
Total interest income	49,847	44,093	97,044	82,851
Interest expense:
Deposits	3,123	2,292	6,231	4,351
FHLB borrowings	229	27	341	27
Notes payable	9	39	20	81
Federal funds purchased and repurchase agreements	8	13	16	25
Total interest expense	3,369	2,371	6,608	4,484
Net interest income	46,478	41,722	90,436	78,367
Provision for loan and lease losses	1,845	6	2,847	(128)
Net interest income after provision for loan and lease losses	44,633	41,716	87,589	78,495
Noninterest income:
Service charges on deposits	1,471	1,352	2,938	2,738
Mortgage banking income	3,096	3,551	5,990	6,592
SBA income	1,983	1,685	3,161	3,187
Payroll and insurance income	1,418	1,282	2,913	2,800
ATM income	864	769	1,696	1,514
Bank-owned life insurance income	465	468	949	930
Gain on sale of investment securities	13	396	25	409
Other	1,166	727	2,263	1,451
Total noninterest income	10,476	10,230	19,935	19,621
Noninterest expense:
Salaries and employee benefits	21,912	20,662	43,969	39,422
Occupancy and equipment	3,329	3,015	6,609	6,116
Data processing	2,382	2,211	5,021	4,286
Legal and professional fees	898	976	2,703	1,929
Merger-related expenses	372	319	2,607	319
Marketing	403	619	1,067	1,121
Federal deposit insurance premiums and other regulatory fees	398	553	795	1,115
Loan collection costs and OREO activity	(213)	(96)	(1,255)	389
Amortization of intangibles	697	528	1,393	1,073
Other	1,819	1,887	3,653	3,802
Total noninterest expense	31,997	30,674	66,562	59,572
Income before income taxes	23,112	21,272	40,962	38,544
Income tax expense	7,909	7,287	14,201	13,721
Net income	$ 15,203	$ 13,985	$ 26,761	$ 24,823
Basic earnings per share (usd per share)	$ 0.39	$ 0.38	$ 0.69	$ 0.67
Diluted earnings per share (usd per share)	0.39	0.38	0.69	0.67
Cash dividends declared per common share (usd per share)	$ 0.14000	$ 0.14000	$ 0.28	$ 0.28
Weighted Average Shares Outstanding:
Basic (in shares)	37,896,125	35,822,654	37,881,999	35,979,436
Diluted (shares)	37,942,483	35,923,691	37,934,187	36,077,820

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Statement of Comprehensive Income [Abstract]
Net income	$ 15,203	$ 13,985	$ 26,761	$ 24,823
Other comprehensive income, net of tax:
Net change in unrealized gains	1,110	3,521	594	8,495
Amortization of net unrealized losses (gains) on securities transferred to held-to-maturity	46	(2)	44	(1)
Amounts reclassified for losses (gains) realized and included in earnings	417	(130)	809	75
Other comprehensive income, before income taxes	1,573	3,389	1,447	8,569
Income tax expense	585	1,312	549	3,381
Other comprehensive income, net of income taxes	988	2,077	898	5,188
Comprehensive income	$ 16,191	$ 16,062	$ 27,659	$ 30,011

CONSOLIDATED STATEMENTS OF CHAN

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Unaudited) - USD ($) $ in Thousands	Total	Warrants	Common Stock	Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Balance warrants (in shares) at Dec. 31, 2015		172,745
Balance (in shares) at Dec. 31, 2015			37,077,848
Balance at Dec. 31, 2015	$ 536,490		$ 371	$ 358,671	$ 179,082	$ (1,634)
Increase (decrease) in shareholders' equity
Exercise of stock warrants (in shares)		(8,833)	4,499
Exercise of stock warrants	0			0
Share-based compensation	2,126			2,126
Repurchase of common stock (in shares)			(270,715)
Repurchase of common stock	(5,128)		$ (3)	(5,125)
Restricted stock activity (in shares)			83,009
Restricted stock activity	208		$ 1	217	(10)
Other comprehensive income	5,188					5,188
Common stock dividends, $.28 per share	(10,351)				(10,351)
Net income	24,823				24,823
Balance warrants (in shares) at Jun. 30, 2016		163,912
Balance (in shares) at Jun. 30, 2016			36,894,641
Balance at Jun. 30, 2016	$ 553,356		$ 369	355,889	193,544	3,554
Balance warrants (in shares) at Dec. 31, 2016		133,912
Balance (in shares) at Dec. 31, 2016	38,845,573		38,845,573
Balance at Dec. 31, 2016	$ 613,633		$ 388	409,736	205,966	(2,457)
Increase (decrease) in shareholders' equity
Exercise of stock warrants (in shares)		(46,000)	31,939
Exercise of stock warrants	1		$ 1
Share-based compensation	1,817			1,817
Restricted stock activity (in shares)			77,974
Restricted stock activity	(210)		$ 1	(128)	(83)
Issuance of common stock (in shares)			12,486
Issuance of common stock	335		$ 0	335
Other comprehensive income	898					898
Common stock dividends, $.28 per share	(10,898)				(10,898)
Net income	$ 26,761				26,761
Balance warrants (in shares) at Jun. 30, 2017		87,912
Balance (in shares) at Jun. 30, 2017	38,967,972		38,967,972
Balance at Jun. 30, 2017	$ 632,337		$ 390	$ 411,760	$ 221,746	$ (1,559)

CONSOLIDATED STATEMENTS OF CHA7

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Unaudited) (Parenthetical) - $ / shares	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Statement of Stockholders' Equity [Abstract]
Dividends per share (usd per share)	$ 0.28	$ 0.28

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Cash Flows from Operating Activities
Net income	$ 26,761	$ 24,823
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization and accretion	5,838	5,756
Provision for loan and lease losses	2,847	(128)
Accretion on acquisitions, net	(16,905)	(23,704)
Gains on sales of other real estate owned	(1,693)	(293)
Writedowns of other real estate owned	121	202
Proceeds from sales of mortgage loans held-for-sale	248,964	247,248
Proceeds from sales of SBA loans held-for-sale	27,463	27,438
Originations of mortgage loans held-for-sale	(237,579)	(250,205)
Originations of SBA loans held-for-sale	(26,097)	(33,135)
Mortgage banking activities	(5,990)	(6,592)
Gains on sales of SBA loans	(2,483)	(2,592)
Net gains on sales of available-for-sale securities	(25)	(409)
Share-based compensation expense	1,817	2,126
Changes in fair value of SBA servicing rights	246	85
Changes in other assets and other liabilities, net	(593)	3,944
Net cash provided by (used in) operating activities	22,692	(5,436)
Cash flows from Investing Activities
Purchase of investment securities available-for-sale	(161,915)	(137,231)
Proceeds from sales and calls of investment securities available-for-sale	64,778	64,879
Proceeds from maturities and paydowns of investment securities available-for-sale	95,192	85,497
Proceeds from maturities and paydowns of investment securities held-to-maturity	9,000	0
Purchase of investment securities held-to-maturity	(5,000)	(6,500)
Loan originations, repayments and resolutions, net	(51,705)	(163,928)
Purchases of loans	0	(1,300)
Net purchases of premises and equipment	(926)	(961)
Proceeds from sales of other real estate owned	10,787	1,748
Net cash paid in excess of assets and liabilities acquired in purchase business combinations	(34,316)	0
Net cash used in investing activities	(74,105)	(157,796)
Cash Flows from Financing Activities
Net increase in noninterest-bearing customer deposits	25,090	3,457
Net (decrease) increase in interest-bearing customer deposits	(3,563)	20,071
Repayment of other borrowed funds	0	(1,414)
Proceeds from FHLB advances	840,000	177,000
Repayments of FHLB advances	(807,014)	(115,000)
Net (decrease) increase in federal funds purchased and securities sold under repurchase agreements	(2,417)	1,744
Payment of contingent consideration	(1,495)	(150)
Exercise of stock warrants	1	0
Restricted stock activity	(210)	208
Repurchase of common stock	0	(5,128)
Dividends paid to shareholders	(10,898)	(10,351)
Net cash provided by financing activities	39,494	70,437
Net decrease in cash and cash equivalents	(11,919)	(92,795)
Cash and cash equivalents, beginning	149,593	175,362
Cash and cash equivalents, ending	137,674	82,567
Supplemental Disclosure of Noncash Investing and Financing Activities
Unrealized gains (losses) on securities and cash flow hedges, net of tax	898	5,188
Transfer of investment securities available-for-sale to held-to-maturity	0	56,595
Transfers of loans to other real estate owned	725	2,705
Acquisitions:
Assets acquired	635	0
Liabilities assumed	150	0
Net assets	485	0
Goodwill and fair value adjustments	$ 392	$ 0

Basis of Presentation and Recen

Basis of Presentation and Recently Adopted Accounting Standards	6 Months Ended
	Jun. 30, 2017
Accounting Policies [Abstract]
Basis of Presentation and Recently Adopted Accounting Standards	NOTE 1: BASIS OF PRESENTATION AND RECENTLY ADOPTED ACCOUNTING STANDARDS Overview State Bank Financial Corporation (the "Company" or "we") is a bank holding company whose business is primarily conducted through its wholly-owned banking subsidiary, State Bank and Trust Company (the "Bank" or "State Bank"). We operate a full service banking business and offer a broad range of commercial and retail banking products to our customers throughout seven of Georgia's eight largest metropolitan statistical areas, or MSAs. The accompanying unaudited consolidated financial statements for the Company have been prepared in accordance with accounting principles generally accepted in the United States of America for interim financial information. Accordingly, the financial statements do not include all of the information and footnotes required by accounting principles generally accepted in the United States of America for complete financial statement presentation. The interim consolidated financial statements included herein are unaudited, but reflect all adjustments, consisting of normal and recurring items, which, in the opinion of management, are necessary for a fair presentation of the consolidated financial position and results of operations for the interim period presented. All significant intercompany accounts and transactions have been eliminated in consolidation. The results of operations for the period ended June 30, 2017 are not necessarily indicative of the results to be expected for the full year. These financial statements should be read in conjunction with the financial statements and notes thereto and the report of our independent registered public accounting firm included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2016 . Certain amounts have been reclassified to conform to the current period presentation. The reclassifications had no effect on net income or shareholders’ equity as previously reported.

Recent Accounting Pronouncement

Recent Accounting Pronouncements	6 Months Ended
	Jun. 30, 2017
Accounting Changes and Error Corrections [Abstract]
Recent Accounting Pronouncements	NOTE 2: RECENT ACCOUNTING PRONOUNCEMENTS Adoption of New Accounting Standards ASU 2016-05 — In March 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2016-05, Derivatives and Hedging (Topic 815): Effect of Derivative Contract Novations on Existing Hedge Accounting Relationships . The amendments in this Update clarify that a change in the counterparty to a derivative instrument that has been designated as a hedging instrument under Topic 815 does not, in and of itself, require dedesignation of that hedging relationship provided that all other hedge accounting criteria continue to be met. The amendments in this update are effective for fiscal years beginning after December 15, 2016, including interim periods within those fiscal years. Early adoption is permitted and the amendments can be adopted either on a prospective basis or a modified retrospective basis. The Company adopted the amendments in this ASU effective January 1, 2017. The adoption did not have a material impact on our consolidated financial statements. Recent Accounting Pronouncements ASU 2017-09 — On May 10, 2017, the FASB issued ASU 2017-09, Scope of Modification Accounting. This Update amends the scope of modification accounting for share-based payment arrangements. It provides guidance on the types of changes to the terms or conditions of share-based payment awards to which an entity would be required to apply modification accounting under ASC 718, Compensation—Stock Compensation. Specifically, an entity would not apply modification accounting if the fair value, vesting conditions and classification of the awards are the same immediately before and after the modification. The ASU is effective for annual reporting periods, including interim periods within those annual reporting periods, beginning after December 15, 2017. Early adoption is permitted, including adoption in any interim period. The guidance is not expected to have a significant impact on the Company's financial position, results of operations or disclosures. ASU 2017-08 — In March 2017, FASB issued ASU No. 2017-08, Receivables - Nonrefundable Fees and Other Costs (Topic 310-20): Premium Amortization on Purchased Callable Debt Securities . The ASU shortens the amortization period for certain callable debt securities held at a premium. The premium on individual callable debt securities shall be amortized to the earliest call date. This guidance does not apply to securities for which prepayments are estimated on a large number of similar loans where prepayments are probable and reasonably estimable. The amendments in this update are effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. Early adoption is permitted. This update should be adopted on a modified retrospective basis with a cumulative-effect adjustment to retained earnings on the date of adoption. The guidance is not expected to have a significant impact on the Company's financial position, results of operations or disclosures. ASU 2017-04 — In January 2017, FASB issued ASU No. 2017-04, Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment . The ASU simplifies the subsequent measurement of goodwill and eliminates Step 2 from the goodwill impairment test. The Company should perform its goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. An impairment charge should be recognized for the amount by which the carrying amount exceeds the reporting unit's fair value. The impairment charge is limited to the amount of goodwill allocated to that reporting unit. The amendments in this update are effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. Early adoption is permitted for goodwill impairment tests performed on testing dates after January 1, 2017. The guidance is not expected to have a significant impact on the Company's financial position, results of operations or disclosures. ASU 2017-01 — In January 2017, FASB issued ASU No. 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a Business . The ASU clarifies the definition of a business to assist with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. The amendments in this update are effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. The guidance is not expected to have a significant impact on the Company's financial position, results of operations or disclosures. ASU 2016-13 — In June 2016, FASB issued ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments. The ASU changed the credit loss model on financial instruments measured at amortized cost, available for sale securities and certain purchased financial instruments. Credit losses on financial instruments measured at amortized cost will be determined using a current expected credit loss model which requires the Company to measure all expected credit losses for financial instruments held at the reporting date based on historical experience, current conditions, and reasonable supportable forecasts. This replaces the existing incurred loss model and is applicable to the measurement of credit losses on financial assets measured at amortized cost and applies to some off-balance sheet credit exposures. Purchased financial assets with more-than-insignificant credit deterioration since origination ("PCD assets") measured at amortized cost will have an allowance for credit losses established at acquisition as part of the purchase price. Subsequent increases or decreases to the allowance for credit losses on PCD assets will be recognized in the income statement. Interest income should be recognized on PCD assets based on the effective interest rate, determined excluding the discount attributed to credit losses at acquisition. Credit losses relating to available-for-sale debt securities will be recognized through an allowance for credit losses. The amount of the credit loss is limited to the amount by which fair value is below amortized cost of the available-for-sale debt security. The amendments in this update are effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. Early adoption is permitted and if early adopted, all provisions must be adopted in the same period. The amendments should be applied through a cumulative-effect adjustment to retained earnings as of the beginning of the period adopted. A prospective approach is required for securities with other-than-temporary impairment recognized prior to adoption. The Company is still reviewing the impact the adoption of this guidance, but expects the allowance for credit losses to increase upon adoption with a corresponding adjustment to retained earnings. The ultimate amount of the increase will depend on the portfolio composition, credit quality, economic conditions and reasonable and supportable forecasts at that time. ASU 2016-02 — In February 2016, FASB issued ASU No. 2016-02, Leases (Topic 842) . The new standard requires the recognition of assets and liabilities arising from the lease transactions on the balance sheet and the disclosure of key information about leasing arrangements. Accordingly, a lessee will recognize a lease asset for its right to use the underlying asset and a lease liability for the corresponding lease obligation. Both the asset and liability will initially be measured at the present value of the future minimum lease payments over the lease term. Subsequent measurement, including the presentation of expenses and cash flows, will depend on the classification of the lease as either a finance or an operating lease. Initial costs directly attributable to negotiating and arranging the lease will be included in the asset. For leases with a term of 12 months or less, a lessee can make an accounting policy election by class of underlying asset to not recognize an asset and corresponding liability. Lessees will also be required to provide additional qualitative and quantitative disclosures regarding the amount, timing and uncertainty of cash flows arising from leases. These disclosures are intended to supplement the amounts recorded in the financial statements and provide additional information about the nature of an organization’s leasing activities. 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. The modified retrospective approach includes a number of optional practical expedients that entities may elect to apply. An entity that elects to apply the practical expedients will, in effect, continue to account for leases that commence before the effective date in accordance with previous GAAP unless the lease is modified, except that lessees are required to recognize a right-of-use asset and a lease liability for all operating leases at each reporting date based on the present value of the remaining minimum rental payments that were tracked and disclosed under previous GAAP. The amendments in this update are effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. The Company expects to elect the package of practical expedients that allows it to not reassess whether any expired or existing contracts represent leases, the lease classification of any expired or existing lease and initial direct costs for any existing or expired leases. The Company expects this standard will have a material impact on its financial statements through gross-up of the balance sheet for lease assets and liabilities. However, no material change to lease expense recognition is expected. ASU 2016-01 — In January 2016, FASB issued ASU No. 2016-01, Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities . The amendments in this ASU (i) requires equity investments, with certain exceptions, to be measured at fair value with changes in fair value recognized in net income, (ii) simplifies the impairment assessment of equity investments without readily determinable fair values by requiring a qualitative assessment to identify impairment, (iii) eliminates the requirement for public business entities to disclose the methods and significant assumptions used to estimate the fair value that is required to be disclosed for financial instruments measured at amortized cost on the balance sheet, (iv) requires public business entities to use the exit price notion when measuring the fair value of financial instruments for disclosure purposes, (v) requires an entity to present separately in other comprehensive income the portion of the total change in the fair value of a liability resulting from a change in the instrument-specific credit risk when the entity has elected to measure the liability at fair value in accordance with the fair value option for financial instruments, (vi) requires separate presentation of financial assets and financial liabilities by measurement category and form of financial asset on the balance sheet or the accompanying notes to the financial statements and (vii) clarifies that an entity should evaluate the need for a valuation allowance on a deferred tax asset related to available-for-sale securities in combination with the entity's other deferred tax assets. The accounting guidance is effective for fiscal years, and interim periods within those years, beginning after December 15, 2017. Early adoption is prohibited except for the presentation in other comprehensive income of the portion of the total change in the fair value of a liability resulting from a change in the instrument-specific credit risk which may be early adopted. The guidance is not expected to have a significant impact on the Company's financial position, results of operations or disclosures. ASU 2014-09, Revenue from Contracts with Customers (Topic 606) , ASU 2015-14 Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date , ASU 2016-08 Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net) , ASU 2016-10 Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing , ASU 2016-11 Revenue Recognition (Topic 605) and Derivatives and Hedging (Topic 815): Rescission of SEC Guidance Because of Accounting Standards Updates 2014-09 and 2014-16 Pursuant to Staff Announcements at the March 3, 2016 EITF Meeting , ASU 2016-12 Revenue from Contracts with Customers (Topic 606): Narrow-Scope Improvements and Practical Expedients , ASU 2016-20 Technical Corrections and Improvements to Topic 606, Revenue from Contracts with Customers, and ASU 2017-05 Other Income - Gains and losses from the Derecognition of Nonfinancial Assets (Subtopic 610-20) - Clarifying the Scope of Asset Derecognition Guidance and Accounting for Partial Sales of Nonfinancial Assets — In May 2014, the FASB issued guidance to change the recognition of revenue from contracts with customers. The new guidance, which does not apply to financial instruments, provides that revenue should be recognized for the transfer of goods and services to customers in an amount equal to the consideration it receives or expects to receive. The guidance also includes expanded disclosure requirements that provide comprehensive information about the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers. This guidance is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2017. The Company currently plans to adopt the guidance using the modified retrospective method and without electing any of the practical expedients available. The Company has performed an analysis of the guidance and it is not expected to have a significant impact on the Company's financial position or results of operations but will increase disclosures of revenue.

Acquisitions

Acquisitions	6 Months Ended
	Jun. 30, 2017
Business Combinations [Abstract]
Acquisitions	NOTE 3: ACQUISITIONS Proposed Acquisition of AloStar Bank of Commerce. On June 15, 2017, the Company, State Bank and State Bank Interim Corp. ("Merger Sub"), a wholly-owned subsidiary of State Bank, entered into an agreement to acquire AloStar Bank of Commerce ("AloStar"). Upon the closing of the transaction, (a) Merger Sub will merge with and into AloStar, with AloStar as the surviving bank in the merger, and (b) immediately thereafter, AloStar will merge with and into State Bank, with State Bank as the surviving bank. Completion of the transaction is subject to certain closing conditions, including regulatory approvals and other customary closing conditions. At June 30, 2017 , AloStar had total assets of approximately $945 million , total loans of approximately $783 million , total deposits of approximately $704 million , and total shareholder’s equity of approximately $196 million . AloStar has banking operations in Birmingham, Alabama as well as Atlanta, Georgia. Acquisition of NBG Bancorp, Inc. On December 31, 2016, the Company completed its acquisition of NBG Bancorp, Inc. ("NBG Bancorp"), the holding company for The National Bank of Georgia ("National Bank of Georgia"), a national banking association. NBG Bancorp was immediately merged into the Company followed by the merger of National Bank of Georgia with and into State Bank. Under the terms of the merger agreement, each share of NBG Bancorp common stock was converted into the right to receive either $45.45 in cash or 2.1642 shares of the Company's common stock, provided, that the elections by NBG Bancorp shareholders were prorated under the merger agreement such that 50% of NBG Bancorp's shares were exchanged for cash and 50% were exchanged for Company common stock. The elections by NBG Bancorp's shareholders were made subsequent to completion of the merger and the final merger consideration was distributed in February 2017. Total consideration paid was approximately $77.9 million , consisting of $34.2 million in cash and $43.7 million in the Company's common stock. The merger of NBG Bancorp was accounted for under the acquisition method of accounting, using pushdown accounting. Assets acquired, liabilities assumed and consideration exchanged were recorded at their respective acquisition date fair values. Fair values are preliminary and subject to refinement for up to one year after the closing date of the acquisition as additional information regarding the closing date fair values becomes available. Goodwill of $36.6 million was generated from the acquisition, none of which is expected to be deductible for income tax purposes. The following table summarizes the assets acquired and liabilities assumed and the consideration paid by the Company at the acquisition date (dollars in thousands) : As Recorded by NBG Bancorp, Inc. Fair Value Adjustments As Recorded by the Company Assets Cash and cash equivalents $ 38,146 $ (31,158 ) (a) $ 6,988 Investment securities available-for-sale 5,974 (40 ) (b) 5,934 Loans, net 348,641 (3,645 ) (c) 344,996 Loans held-for-sale 694 — 694 Other real estate owned 69 (5 ) (d) 64 Core deposit intangible — 3,740 (e) 3,740 Premises and equipment, net 7,943 (635 ) (f) 7,308 Bank-owned life insurance 1,499 — 1,499 Other assets 6,542 276 (g) 6,818 Total assets acquired $ 409,508 $ (31,467 ) $ 378,041 Liabilities Deposits: Noninterest-bearing $ 58,161 $ — $ 58,161 Interest-bearing 261,034 (30,711 ) (h) 230,323 Total deposits 319,195 (30,711 ) 288,484 FHLB advances 46,354 (140 ) (i) 46,214 Other liabilities 2,067 — 2,067 Total liabilities assumed 367,616 (30,851 ) 336,765 Net identifiable assets acquired over liabilities assumed $ 41,892 $ (616 ) $ 41,276 Goodwill $ — $ 36,587 $ 36,587 Net assets acquired over liabilities assumed $ 41,892 $ 35,971 $ 77,863 Consideration: State Bank Financial Corporation common shares issued 1,626,648 Purchase price per share of the Company's common stock $ 26.86 Company common stock issued 43,692 Cash exchanged for shares 34,171 Fair value of total consideration transferred $ 77,863 Explanation of fair value adjustments (a) Adjustment reflects the elimination of a deposit account The National Bank of Georgia held with State Bank. (b) Adjustment reflects the loss on certain securities that were sold immediately following the closing that was deemed to be a more accurate representation of fair value. (c) Adjustment reflects the fair value adjustment based on State Bank's third party valuation report and includes the adjustment to eliminate the recorded allowance for loan and lease losses. (d) Adjustment reflects the fair value adjustment based on State Bank's evaluation of the acquired other real estate owned portfolio. (e) Adjustment reflects the fair value adjustment to record the estimated core deposit intangible based on State Bank's third party valuation report. (f) Adjustment reflects the fair value adjustment based on appraised values. (g) Adjustment reflects the fair value adjustment based on State Bank's evaluation of acquired other assets. (h) Adjustment reflects the elimination of a deposit account The National Bank of Georgia held with State Bank and the fair value adjustment based on State Bank's third party valuation report. (i) Adjustment arises since the rates on acquired FHLB advances were lower than the rates available on similar borrowings. Subsequent to the NBG Bancorp acquisition all FHLB advances were paid off. The following table presents certain pro forma information as if NBG Bancorp had been acquired on January 1, 2016 (dollars in thousands, except per share amounts) . These results combine the historical results of NBG Bancorp in the Company's consolidated statements of income and, while certain adjustments were made for the estimated impact of certain fair value adjustments and other acquisition-related activity, they are not indicative of what would have occurred had the acquisition taken place on January 1, 2016. Merger-related costs are not included in the pro forma statements below. Six Months Ended June 30 2016 Pro Forma Net interest income $ 87,137 Net income 27,738 Earnings per share: Basic $ .72 Diluted .72 The following is a summary of the purchased credit impaired loans acquired in the NBG Bancorp transaction on December 31, 2016 (dollars in thousands) : Purchased Credit Impaired Loans Contractually required principal and interest at acquisition $ 33,584 Contractual cash flows not expected to be collected (nonaccretable difference) (3,736 ) Expected cash flows at acquisition 29,848 Accretable difference (2,799 ) Basis in acquired loans at acquisition - estimated fair value $ 27,049 On December 31, 2016, the fair value of the purchased non-credit impaired loans acquired in the NBG Bancorp transaction was $317.9 million . The contractual balance of the purchased non-credit impaired loans at acquisition was $350.0 million , of which $4.4 million was the amount of contractual cash flows not expected to be collected. Acquisition of S Bankshares, Inc. On December 31, 2016, the Company completed its acquisition of S Bankshares Inc. ("S Bankshares"), the holding company for S Bank, a Georgia state-chartered bank. S Bankshares was immediately merged into the Company followed by the merger of S Bank with and into State Bank. Under the terms of the merger agreement, each share of S Bankshares common stock was converted into the right to receive either $56.70 in cash or 2.7444 shares of the Company's common stock, provided, that the elections by S Bankshares' shareholders were prorated under the merger agreement such that 60% of S Bankshares' shares were exchanged for Company common stock and 40% were exchanged for cash. Total consideration paid was approximately $12.6 million , consisting of $4.3 million in cash and $8.3 million in the Company's common stock. The acquisition of S Bankshares was accounted for under the acquisition method of accounting, using pushdown accounting. Assets acquired, liabilities assumed and consideration exchanged were recorded at their respective acquisition date fair values. Fair values are preliminary and subject to refinement for up to one year after the closing date of the acquisition as additional information regarding the closing date fair values becomes available. Goodwill of $4.1 million was generated from the acquisition, none of which is expected to be deductible for income tax purposes. The following table summarizes the assets acquired and liabilities assumed and the consideration paid by the Company at the acquisition date (dollars in thousands) : As Recorded by S Bankshares Inc. Fair Value Adjustments As Recorded by the Company Assets Cash and cash equivalents $ 954 $ — $ 954 Investment securities available-for-sale 13,814 (88 ) (a) 13,726 Loans, net 81,383 (2,344 ) (b) 79,039 Other real estate owned 1,278 (332 ) (c) 946 Core deposit intangible — 1,010 (d) 1,010 Premises and equipment, net 3,132 420 (e) 3,552 Bank-owned life insurance 3,124 — 3,124 Other assets 2,636 1,130 (f) 3,766 Total assets acquired $ 106,321 $ (204 ) $ 106,117 Liabilities Deposits: Noninterest-bearing $ 16,620 $ — $ 16,620 Interest-bearing 76,664 494 (g) 77,158 Total deposits 93,284 494 93,778 Federal funds purchased and securities sold under repurchase agreements 1,951 — 1,951 FHLB advances 800 — 800 Other liabilities 1,104 — 1,104 Total liabilities assumed 97,139 494 97,633 Net identifiable assets acquired over liabilities assumed $ 9,182 $ (698 ) $ 8,484 Goodwill $ — $ 4,140 $ 4,140 Net assets acquired over liabilities assumed $ 9,182 $ 3,442 $ 12,624 Consideration: State Bank Financial Corporation common shares issued 310,596 Purchase price per share of the Company's common stock $ 26.86 Company common stock issued 8,343 Cash exchanged for shares 4,281 Fair value of total consideration transferred $ 12,624 Explanation of fair value adjustments (a) Adjustment reflects the loss on certain securities that were sold immediately following the closing that was deemed to be a more accurate representation of fair value. (b) Adjustment reflects the fair value adjustment based on State Bank's third party valuation report and includes the adjustment to eliminate the recorded allowance for loan and lease losses. (c) Adjustment reflects the fair value adjustment based on State Bank's evaluation of the acquired other real estate owned portfolio. (d) Adjustment reflects the fair value adjustment to record the estimated core deposit intangible based on State Bank's third party valuation report. (e) Adjustment reflects the fair value adjustment based on appraised values. (f) Adjustment reflects the fair value adjustment based on State Bank's evaluation of acquired other assets. (g) Adjustment reflects the fair value adjustment based on State Bank's third party valuation report. The following table presents certain pro forma information as if S Bankshares had been acquired on January 1, 2016 (dollars in thousands, except per share amounts) . These results combine the historical results of S Bankshares in the Company's consolidated statements of income and, while certain adjustments were made for the estimated impact of certain fair value adjustments and other acquisition-related activity, they are not indicative of what would have occurred had the acquisition taken place on January 1, 2016. Merger-related costs are not included in the pro forma statements below. Six Months Ended June 30 2016 Pro Forma Net interest income $ 81,301 Net income 24,961 Earnings per share: Basic $ .67 Diluted .67 The following is a summary of the purchased credit impaired loans acquired in the S Bankshares transaction on December 31, 2016 (dollars in thousands) : Purchased Credit Impaired Loans Contractually required principal and interest at acquisition $ 15,966 Contractual cash flows not expected to be collected (nonaccretable difference) (2,805 ) Expected cash flows at acquisition 13,161 Accretable difference (1,377 ) Basis in acquired loans at acquisition - estimated fair value $ 11,784 On December 31, 2016, the fair value of the purchased non-credit impaired loans acquired in the S Bankshares transaction was $67.3 million . The contractual balance of the purchased non-credit impaired loans at acquisition was $77.0 million , of which $1.3 million was the amount of contractual cash flows not expected to be collected.

Investment Securities

Investment Securities	6 Months Ended
	Jun. 30, 2017
Investments, Debt and Equity Securities [Abstract]
Investment Securities	NOTE 4: INVESTMENT SECURITIES The amortized cost and fair value of securities classified as available-for-sale are as follows (dollars in thousands) : June 30, 2017 December 31, 2016 Investment Securities Available-for-Sale Amortized Cost Unrealized Gains Unrealized Losses Fair Value Amortized Cost Unrealized Gains Unrealized Losses Fair Value U.S. Government securities $ 84,546 $ 17 $ 334 $ 84,229 $ 89,044 $ 70 $ 465 $ 88,649 States and political subdivisions 300 1 — 301 300 1 — 301 Residential mortgage-backed securities — nonagency 132,493 2,924 280 135,137 151,519 3,129 639 154,009 Residential mortgage-backed securities — agency 517,796 437 5,179 513,054 533,479 548 4,725 529,302 Corporate securities 114,128 1,020 74 115,074 74,793 207 83 74,917 Total investment securities available-for-sale $ 849,263 $ 4,399 $ 5,867 $ 847,795 $ 849,135 $ 3,955 $ 5,912 $ 847,178 The amortized cost and fair value of securities classified as held-to-maturity are as follows (dollars in thousands) : June 30, 2017 December 31, 2016 Investment Securities Held-to-Maturity Amortized Cost Unrealized Gains Unrealized Losses Fair Value Amortized Cost Unrealized Gains Unrealized Losses Fair Value Asset-backed securities $ 52,894 $ 435 $ — $ 53,329 $ 56,804 $ 295 $ 14 $ 57,085 Corporate securities 10,210 190 — 10,400 10,259 91 — 10,350 Total investment securities held-to-maturity $ 63,104 $ 625 $ — $ 63,729 $ 67,063 $ 386 $ 14 $ 67,435 The amortized cost and estimated fair value of debt securities by contractual maturities are summarized in the tables below (dollars in thousands) : Debt Securities Available-for-Sale Distribution of Maturities (1) June 30, 2017 1 Year or Less 1-5 Years 5-10 Years After 10 Years Total Amortized Cost: U.S. Government securities $ 2,492 $ 82,054 $ — $ — $ 84,546 States and political subdivisions — 300 — — 300 Residential mortgage-backed securities — nonagency — — — 132,493 132,493 Residential mortgage-backed securities — agency — 15,699 280,991 221,106 517,796 Corporate securities 13,296 84,949 13,999 1,884 114,128 Total debt securities available-for-sale $ 15,788 $ 183,002 $ 294,990 $ 355,483 $ 849,263 Fair Value: U.S. Government securities $ 2,493 $ 81,736 $ — $ — $ 84,229 States and political subdivisions — 301 — — 301 Residential mortgage-backed securities — nonagency — — — 135,137 135,137 Residential mortgage-backed securities — agency — 15,676 278,468 218,910 513,054 Corporate securities 13,297 85,308 14,375 2,094 115,074 Total debt securities available-for-sale $ 15,790 $ 183,021 $ 292,843 $ 356,141 $ 847,795 Debt Securities Held-to-Maturity Distribution of Maturities (1) June 30, 2017 1 Year or Less 1-5 Years 5-10 Years After 10 Years Total Amortized Cost: Asset-backed securities $ — $ — $ 37,394 $ 15,500 $ 52,894 Corporate securities — — 10,210 — 10,210 Total debt securities held-to-maturity $ — $ — $ 47,604 $ 15,500 $ 63,104 Fair Value: Asset-backed securities $ — $ — $ 37,777 $ 15,552 $ 53,329 Corporate securities — — 10,400 — 10,400 Total debt securities held-to-maturity $ — $ — $ 48,177 $ 15,552 $ 63,729 (1) Actual cash flows may differ from contractual maturities as borrowers may prepay obligations without prepayment penalties. The following tables provide information regarding securities with unrealized losses (dollars in thousands) : Less than 12 Months 12 Months or More Total Investment Securities Available-for-Sale Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses June 30, 2017 U.S. Government securities $ 61,849 $ 334 $ — $ — $ 61,849 $ 334 States and political subdivisions — — — — — — Residential mortgage-backed securities — nonagency 9,495 25 22,052 255 31,547 280 Residential mortgage-backed securities — agency 422,418 5,038 8,940 141 431,358 5,179 Corporate securities 26,483 74 — — 26,483 74 Total temporarily impaired securities $ 520,245 $ 5,471 $ 30,992 $ 396 $ 551,237 $ 5,867 December 31, 2016 U.S. Government securities $ 43,958 $ 465 $ — $ — $ 43,958 $ 465 States and political subdivisions — — — — — — Residential mortgage-backed securities — nonagency 29,403 239 23,991 400 53,394 639 Residential mortgage-backed securities — agency 430,490 4,484 18,795 241 449,285 4,725 Corporate securities 22,944 83 — — 22,944 83 Total temporarily impaired securities $ 526,795 $ 5,271 $ 42,786 $ 641 $ 569,581 $ 5,912 Less than 12 Months 12 Months or More Total Investment Securities Held-to-Maturity Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses December 31, 2016 Asset-backed securities $ 6,486 $ 14 $ — $ — $ 6,486 $ 14 Total temporarily impaired securities $ 6,486 $ 14 $ — $ — $ 6,486 $ 14 At June 30, 2017 , the Company held 135 investment securities that were in an unrealized loss position. Market changes in interest rates and credit spreads may result in temporary unrealized losses as market prices of securities fluctuate. The Company reviews its investment portfolio on a quarterly basis for indications of other than temporary impairment ("OTTI"). The severity and duration of impairment and the likelihood of potential recovery of impairment is considered along with the intent and ability to hold any impaired security to maturity or recovery of carrying value. More specifically, when analyzing the nonagency portfolio, the Company uses cash flow models that estimate cash flows on security-specific collateral and the transaction structure. Future expected credit losses are determined by using various assumptions, the most significant of which include current default rates, prepayment rates and loss severities. Credit information is available and modeled at the loan level underlying each security during the OTTI analysis; the Company also considers information such as loan to collateral values, FICO scores and geographic considerations, such as home price appreciation or depreciation. These inputs are updated quarterly or as changes occur to ensure that the most current credit and other assumptions are utilized in the analysis. If, based on the analysis, the Company does not expect to recover the entire amortized cost basis of the security, the expected cash flows are discounted at the security's initial effective interest rate to arrive at a present value amount. OTTI credit losses reflect the difference between the present value of cash flows expected to be collected and the amortized cost basis of these securities. At June 30, 2017 , there was no intent to sell any of the securities in an unrealized loss position, and it is more likely than not the Company will not be required to sell these securities. Furthermore, the present value of cash flows expected to be collected exceeded the Company's amortized cost basis of the investment securities; therefore, these securities are not deemed to be other than temporarily impaired. Sales and calls of securities are summarized in the following table for the periods presented (dollars in thousands) : Three Months Ended Six Months Ended June 30 June 30 Securities Available-For-Sale 2017 2016 2017 2016 Proceeds from sales and calls $ 21,942 $ 41,979 $ 64,778 $ 64,879 Gross gains on sales and calls $ 89 $ 396 $ 118 $ 409 Gross losses on sales and calls (76 ) — (93 ) — Net realized gains on sales and calls $ 13 $ 396 $ 25 $ 409 The composition of investment securities reflects the strategy of management to maintain an appropriate level of liquidity while providing a relatively stable source of revenue. The securities portfolio may at times be used to mitigate interest rate risk associated with other areas of the balance sheet while also providing a means for the investment of available funds, providing liquidity and supplying investment securities that are required to be pledged as collateral against specific deposits and for other purposes. Investment securities with an aggregate fair value of $276.4 million and $368.3 million at June 30, 2017 and December 31, 2016 , respectively, were pledged to secure public deposits and repurchase agreements.

Loans

Loans	6 Months Ended
	Jun. 30, 2017
Receivables [Abstract]
Loans	NOTE 5: LOANS Loans, in total, are summarized as follows (dollars in thousands) : Total Loans June 30, 2017 December 31, 2016 Construction, land & land development $ 461,497 $ 567,763 Other commercial real estate 1,178,754 1,025,063 Total commercial real estate 1,640,251 1,592,826 Residential real estate 330,717 343,398 Owner-occupied real estate 382,337 395,863 Commercial, financial & agricultural 390,900 368,120 Leases 73,103 71,724 Consumer 63,692 42,641 Total loans 2,881,000 2,814,572 Allowance for loan and lease losses (27,988 ) (26,598 ) Total loans, net $ 2,853,012 $ 2,787,974 Organic loans, net of related discounts, are summarized as follows (dollars in thousands) : Organic Loans June 30, 2017 December 31, 2016 Construction, land & land development $ 413,557 $ 500,018 Other commercial real estate 960,762 754,790 Total commercial real estate 1,374,319 1,254,808 Residential real estate 167,755 144,295 Owner-occupied real estate 244,637 256,317 Commercial, financial & agricultural 355,629 327,381 Leases 73,103 71,724 Consumer 60,028 36,039 Total organic loans (1) 2,275,471 2,090,564 Allowance for loan and lease losses (22,560 ) (21,086 ) Total organic loans, net $ 2,252,911 $ 2,069,478 (1) Includes net deferred loan fees that totaled approximately $9.4 million and $7.0 million at June 30, 2017 and December 31, 2016 , respectively. Purchased non-credit impaired loans ("PNCI loans"), net of related discounts, are summarized as follows (dollars in thousands) : Purchased Non-Credit Impaired Loans June 30, 2017 December 31, 2016 Construction, land & land development $ 31,083 $ 51,208 Other commercial real estate 171,914 209,531 Total commercial real estate 202,997 260,739 Residential real estate 117,449 144,596 Owner-occupied real estate 114,438 115,566 Commercial, financial & agricultural 31,654 36,206 Consumer 3,393 6,255 Total purchased non-credit impaired loans (1) 469,931 563,362 Allowance for loan and lease losses (667 ) (439 ) Total purchased non-credit impaired loans, net $ 469,264 $ 562,923 (1) Includes net discounts that totaled approximately $6.8 million and $10.5 million at June 30, 2017 and December 31, 2016 , respectively. Purchased credit impaired loans ("PCI loans"), net of related discounts, are summarized as follows (dollars in thousands) : Purchased Credit Impaired Loans June 30, 2017 December 31, 2016 Construction, land & land development $ 16,857 $ 16,537 Other commercial real estate 46,078 60,742 Total commercial real estate 62,935 77,279 Residential real estate 45,513 54,507 Owner-occupied real estate 23,262 23,980 Commercial, financial & agricultural 3,617 4,533 Consumer 271 347 Total purchased credit impaired loans 135,598 160,646 Allowance for loan and lease losses (4,761 ) (5,073 ) Total purchased credit impaired loans, net $ 130,837 $ 155,573 Changes in the carrying value of purchased credit impaired loans are presented in the following table for the periods presented (dollars in thousands) : Three Months Ended Six Months Ended June 30 June 30 Purchased Credit Impaired Loans 2017 2016 2017 2016 Balance, beginning of period $ 149,560 $ 132,242 $ 155,573 $ 137,777 Accretion of fair value discounts 9,228 13,961 16,905 23,704 Fair value of acquired loans — — — 1,300 Reductions in principal balances resulting from repayments, write-offs and foreclosures (27,790 ) (19,223 ) (41,953 ) (36,046 ) Change in the allowance for loan and lease losses on purchased credit impaired loans (161 ) 2,120 312 2,365 Balance, end of period $ 130,837 $ 129,100 $ 130,837 $ 129,100 Purchased credit impaired loans are initially recorded at fair value at the acquisition date. The Company re-estimates expected cash flows on purchased credit impaired loans on a quarterly basis. Subsequent decreases in the amount of cash expected to be collected from the borrower results in a provision for loan and lease losses and an increase in the allowance for loan and lease losses. Subsequent increases in the amount of cash expected to be collected from the borrower results first in the reversal of any previously-recorded provision for loan and lease losses and related allowance for loan and lease losses, and then as a prospective increase in the accretable discount on the purchased credit impaired loans. The accretable discount is accreted into interest income over the estimated life of the related loan on a level yield basis. Changes in the value of the accretable discount are presented in the following table for the periods presented (dollars in thousands) : Three Months Ended Six Months Ended June 30 June 30 Changes in Accretable Discount 2017 2016 2017 2016 Balance, beginning of period $ 63,066 $ 85,828 $ 69,301 $ 86,100 Additions from acquisitions — — — 1,648 Accretion (9,228 ) (13,961 ) (16,905 ) (23,704 ) Transfers to accretable discounts and exit events, net 5,970 3,523 7,412 11,346 Balance, end of period $ 59,808 $ 75,390 $ 59,808 $ 75,390 The change in the accretable discount is a result of the Company's review and re-estimation of loss assumptions and expected cash flows on purchased credit impaired loans. At June 30, 2017 and December 31, 2016 , loans with a carrying value of $2.6 billion and $2.5 billion , respectively, were pledged for lines of credit

Allowance for Loan and Lease Lo

Allowance for Loan and Lease Losses (ALLL)	6 Months Ended
	Jun. 30, 2017
Receivables [Abstract]
Allowance for Loan and Lease Losses (ALLL)	NOTE 6: ALLOWANCE FOR LOAN AND LEASE LOSSES (ALLL) The following tables summarize the Company's allowance for loan and lease losses for the periods indicated (dollars in thousands) : Three Months Ended June 30 2017 2016 Organic Loans Purchased Non-Credit Impaired Loans Purchased Credit Impaired Loans Total Organic Loans Purchased Non-Credit Impaired Loans Purchased Credit Impaired Loans Total Balance, beginning of period $ 21,885 $ 491 $ 4,600 $ 26,976 $ 22,626 $ 166 $ 7,553 $ 30,345 Charge-offs (536 ) (197 ) (214 ) (947 ) (2,307 ) (1 ) (606 ) (2,914 ) Recoveries 113 1 — 114 54 28 80 162 Net (charge-offs) recoveries (423 ) (196 ) (214 ) (833 ) (2,253 ) 27 (526 ) (2,752 ) Provision for loan and lease losses 1,098 372 375 1,845 1,635 (35 ) (1,594 ) 6 Balance, end of period $ 22,560 $ 667 $ 4,761 $ 27,988 $ 22,008 $ 158 $ 5,433 $ 27,599 Six Months Ended June 30 2017 2016 Organic Loans Purchased Non-Credit Impaired Loans Purchased Credit Impaired Loans Total Organic Loans Purchased Non-Credit Impaired Loans Purchased Credit Impaired Loans Total Balance, beginning of period $ 21,086 $ 439 $ 5,073 $ 26,598 $ 21,224 $ 53 $ 7,798 $ 29,075 Charge-offs (1,076 ) (245 ) (328 ) (1,649 ) (2,547 ) (64 ) (2,122 ) (4,733 ) Recoveries 190 2 — 192 150 61 3,174 3,385 Net recoveries (charge-offs) (886 ) (243 ) (328 ) (1,457 ) (2,397 ) (3 ) 1,052 (1,348 ) Provision for loan and lease losses 2,360 471 16 2,847 3,181 108 (3,417 ) (128 ) Balance, end of period $ 22,560 $ 667 $ 4,761 $ 27,988 $ 22,008 $ 158 $ 5,433 $ 27,599 Activity in the allowance for loan and lease losses on organic loans is detailed as follows by portfolio segment for the periods indicated (dollars in thousands) : Organic Loans Commercial Real Estate Residential Real Estate Owner-Occupied Real Estate Commercial, Financial & Agricultural Leases Consumer Total Three Months Ended June 30, 2017 Beginning balance $ 12,112 $ 1,666 $ 2,108 $ 4,514 $ 710 $ 775 $ 21,885 Charge-offs (187 ) (25 ) — (82 ) (135 ) (107 ) (536 ) Recoveries — 3 — 22 68 20 113 Provision 1,412 197 (72 ) (791 ) 182 170 1,098 Ending balance $ 13,337 $ 1,841 $ 2,036 $ 3,663 $ 825 $ 858 $ 22,560 Six Months Ended June 30, 2017 Beginning balance $ 11,767 $ 1,786 $ 2,239 $ 4,093 $ 655 $ 546 $ 21,086 Charge-offs (187 ) (48 ) — (142 ) (499 ) (200 ) (1,076 ) Recoveries — 6 — 51 109 24 190 Provision 1,757 97 (203 ) (339 ) 560 488 2,360 Ending balance $ 13,337 $ 1,841 $ 2,036 $ 3,663 $ 825 $ 858 $ 22,560 Three Months Ended June 30, 2016 Beginning balance $ 14,292 $ 1,967 $ 1,931 $ 2,918 $ 1,045 $ 473 $ 22,626 Charge-offs (2,125 ) — — (77 ) (105 ) — (2,307 ) Recoveries — 2 44 — 7 1 54 Provision 776 (79 ) 7 993 (66 ) 4 1,635 Ending balance $ 12,943 $ 1,890 $ 1,982 $ 3,834 $ 881 $ 478 $ 22,008 Six Months Ended June 30, 2016 Beginning balance $ 13,607 $ 2,053 $ 1,920 $ 2,509 $ 865 $ 270 $ 21,224 Charge-offs (2,125 ) (28 ) — (164 ) (215 ) (15 ) (2,547 ) Recoveries — 3 44 95 7 1 150 Provision 1,461 (138 ) 18 1,394 224 222 3,181 Ending balance $ 12,943 $ 1,890 $ 1,982 $ 3,834 $ 881 $ 478 $ 22,008 The following table presents the balance of organic loans and the allowance for loan and lease losses based on the method of determining the allowance at the dates indicated (dollars in thousands) : Allowance for Loan and Lease Losses Loans Organic Loans Individually Evaluated for Impairment Collectively Evaluated for Impairment Total Allowance Individually Evaluated for Impairment Collectively Evaluated for Impairment Total Loans June 30, 2017 Commercial real estate $ 107 $ 13,230 $ 13,337 $ 215 $ 1,374,104 $ 1,374,319 Residential real estate 327 1,514 1,841 654 167,101 167,755 Owner-occupied real estate — 2,036 2,036 — 244,637 244,637 Commercial, financial & agricultural 93 3,570 3,663 515 355,114 355,629 Leases — 825 825 — 73,103 73,103 Consumer 19 839 858 38 59,990 60,028 Total organic loans $ 546 $ 22,014 $ 22,560 $ 1,422 $ 2,274,049 $ 2,275,471 December 31, 2016 Commercial real estate $ 201 $ 11,566 $ 11,767 $ 5,057 $ 1,249,751 $ 1,254,808 Residential real estate 413 1,373 1,786 825 143,470 144,295 Owner-occupied real estate — 2,239 2,239 — 256,317 256,317 Commercial, financial & agricultural 146 3,947 4,093 298 327,083 327,381 Leases — 655 655 — 71,724 71,724 Consumer 27 519 546 54 35,985 36,039 Total organic loans $ 787 $ 20,299 $ 21,086 $ 6,234 $ 2,084,330 $ 2,090,564 Activity in the allowance for loan and lease losses on purchased non-credit impaired loans is detailed as follows by portfolio segment for the periods indicated (dollars in thousands) : Purchased Non-Credit Impaired Loans Commercial Real Estate Residential Real Estate Owner-Occupied Real Estate Commercial, Financial & Agricultural Consumer Total Three Months Ended June 30, 2017 Beginning balance $ 239 $ 175 $ 76 $ — $ 1 $ 491 Charge-offs — — (80 ) (115 ) (2 ) (197 ) Recoveries — — — — 1 1 Provision (94 ) 167 156 141 2 372 Ending balance $ 145 $ 342 $ 152 $ 26 $ 2 $ 667 Six Months Ended June 30, 2017 Beginning balance $ 88 $ 72 $ 44 $ 235 $ — $ 439 Charge-offs — — (80 ) (160 ) (5 ) (245 ) Recoveries — — — — 2 2 Provision 57 270 188 (49 ) 5 471 Ending balance $ 145 $ 342 $ 152 $ 26 $ 2 $ 667 Three Months Ended June 30, 2016 Beginning balance $ — $ — $ — $ 166 $ — $ 166 Charge-offs — — — (1 ) — (1 ) Recoveries — 28 — — — 28 Provision — (28 ) — (7 ) — (35 ) Ending balance $ — $ — $ — $ 158 $ — $ 158 Six Months Ended June 30, 2016 Beginning balance $ — $ 53 $ — $ — $ — $ 53 Charge-offs — (62 ) — (1 ) (1 ) (64 ) Recoveries — 44 — — 17 61 Provision — (35 ) — 159 (16 ) 108 Ending balance $ — $ — $ — $ 158 $ — $ 158 The following table presents the balance of purchased non-credit impaired loans and the allowance for loan and lease losses based on the method of determining the allowance at the dates indicated (dollars in thousands) : Allowance for Loan and Lease Losses Loans Purchased Non-Credit Impaired Loans Individually Evaluated for Impairment Collectively Evaluated for Impairment Total Allowance Individually Evaluated for Impairment Collectively Evaluated for Impairment Total Loans June 30, 2017 Commercial real estate $ — $ 145 $ 145 $ 49 $ 202,948 $ 202,997 Residential real estate — 342 342 359 117,090 117,449 Owner-occupied real estate — 152 152 2,752 111,686 114,438 Commercial, financial & agricultural 26 — 26 2,005 29,649 31,654 Consumer — 2 2 12 3,381 3,393 Total purchased non-credit impaired loans $ 26 $ 641 $ 667 $ 5,177 $ 464,754 $ 469,931 December 31, 2016 Commercial real estate $ — $ 88 $ 88 $ 56 $ 260,683 $ 260,739 Residential real estate — 72 72 320 144,276 144,596 Owner-occupied real estate 44 — 44 1,875 113,691 115,566 Commercial, financial & agricultural — 235 235 1,128 35,078 36,206 Consumer — — — 2 6,253 6,255 Total purchased non-credit impaired loans $ 44 $ 395 $ 439 $ 3,381 $ 559,981 $ 563,362 Activity in the allowance for loan and lease losses on purchased credit impaired loans is detailed as follows by portfolio segment for the periods indicated (dollars in thousands) : Purchased Credit Impaired Loans Commercial Real Estate Residential Real Estate Owner-Occupied Real Estate Commercial, Financial & Agricultural Consumer Total Three Months Ended June 30, 2017 Beginning balance $ 2,073 $ 959 $ 1,531 $ 37 $ — $ 4,600 Charge-offs (160 ) (38 ) — (15 ) (1 ) (214 ) Recoveries — — — — — — Provision 218 47 80 15 15 375 Ending balance $ 2,131 $ 968 $ 1,611 $ 37 $ 14 $ 4,761 Six Months Ended June 30, 2017 Beginning balance $ 2,183 $ 1,196 $ 1,655 $ 38 $ 1 $ 5,073 Charge-offs (233 ) (42 ) (36 ) (16 ) (1 ) (328 ) Recoveries — — — — — — Provision 181 (186 ) (8 ) 15 14 16 Ending balance $ 2,131 $ 968 $ 1,611 $ 37 $ 14 $ 4,761 Three Months Ended June 30, 2016 Beginning balance $ 3,430 $ 1,643 $ 2,422 $ 50 $ 8 $ 7,553 Charge-offs (225 ) (377 ) — — (4 ) (606 ) Recoveries 72 6 — 2 — 80 Provision (443 ) (247 ) (920 ) 17 (1 ) (1,594 ) Ending balance $ 2,834 $ 1,025 $ 1,502 $ 69 $ 3 $ 5,433 Six Months Ended June 30, 2016 Beginning balance $ 3,388 $ 1,893 $ 2,449 $ 60 $ 8 $ 7,798 Charge-offs (733 ) (894 ) (211 ) (228 ) (56 ) (2,122 ) Recoveries 2,281 400 207 233 53 3,174 Provision (2,102 ) (374 ) (943 ) 4 (2 ) (3,417 ) Ending balance $ 2,834 $ 1,025 $ 1,502 $ 69 $ 3 $ 5,433 The following table presents the balance of purchased credit impaired loans and the allowance for loan and lease losses based on the method of determining the allowance at the dates indicated (dollars in thousands) : Allowance for Loan and Lease Losses Loans Purchased Credit Impaired Loans Individually Evaluated for Impairment Collectively Evaluated for Impairment Total Allowance Individually Evaluated for Impairment Collectively Evaluated for Impairment Total Loans June 30, 2017 Commercial real estate $ 807 $ 1,324 $ 2,131 $ 20,082 $ 42,853 $ 62,935 Residential real estate 135 833 968 1,864 43,649 45,513 Owner-occupied real estate 1,357 254 1,611 8,509 14,753 23,262 Commercial, financial & agricultural 6 31 37 69 3,548 3,617 Consumer — 14 14 2 269 271 Total purchased credit impaired loans $ 2,305 $ 2,456 $ 4,761 $ 30,526 $ 105,072 $ 135,598 December 31, 2016 Commercial real estate $ 760 $ 1,423 $ 2,183 $ 29,387 $ 47,892 $ 77,279 Residential real estate 156 1,040 1,196 1,897 52,610 54,507 Owner-occupied real estate 1,471 184 1,655 8,376 15,604 23,980 Commercial, financial & agricultural 2 36 38 86 4,447 4,533 Consumer — 1 1 8 339 347 Total purchased credit impaired loans $ 2,389 $ 2,684 $ 5,073 $ 39,754 $ 120,892 $ 160,646 Impaired loans, segregated by class of loans, are presented in the following table (dollars in thousands) : June 30, 2017 December 31, 2016 Unpaid Principal Balance Recorded Investment Related Allowance Unpaid Principal Balance Recorded Investment Related Allowance Impaired Loans (1) With no related allowance recorded: Construction, land & land development $ — $ — $ — $ 4,565 $ 2,933 $ — Other commercial real estate 49 49 — 56 56 — Total commercial real estate 49 49 — 4,621 2,989 — Residential real estate 368 359 — 388 320 — Owner-occupied real estate 2,865 2,752 — 193 188 — Commercial, financial & agricultural 2,053 1,607 — 1,335 1,128 — Consumer 20 12 — 2 2 — Subtotal 5,355 4,779 — 6,539 4,627 — With related allowance recorded: Construction, land & land development 217 215 107 4,277 2,124 201 Other commercial real estate — — — — — — Total commercial real estate 217 215 107 4,277 2,124 201 Residential real estate 714 654 327 891 825 413 Owner-occupied real estate — — — 1,706 1,687 44 Commercial, financial & agricultural 940 913 119 308 298 146 Consumer 62 38 19 55 54 27 Subtotal 1,933 1,820 572 7,237 4,988 831 Total impaired loans $ 7,288 $ 6,599 $ 572 $ 13,776 $ 9,615 $ 831 (1) Includes loans with SBA guaranteed balances of $4.4 million and $3.0 million at June 30, 2017 and December 31, 2016 , respectively. The following table presents information related to the average recorded investment and interest income recognized on impaired loans, for the periods presented (dollars in thousands) : June 30, 2017 June 30, 2016 Impaired Loans Average Recorded Investment (1) Interest Income Recognized (2) Average Recorded Investment (1) Interest Income Recognized (2) Three Months Ended Construction, land & land development $ 3,458 $ — $ 5,832 $ — Other commercial real estate 51 — 239 — Total commercial real estate 3,509 — 6,071 — Residential real estate 1,018 — 1,803 — Owner-occupied real estate 2,788 — — 3 Commercial, financial & agricultural 2,682 1 1,709 16 Consumer 72 — 34 — Total impaired loans $ 10,069 $ 1 $ 9,617 $ 19 Six Months Ended Construction, land & land development $ 4,297 $ — $ 6,845 $ — Other commercial real estate 53 — 321 — Total commercial real estate 4,350 — 7,166 — Residential real estate 1,031 — 1,868 — Owner-occupied real estate 2,824 — 380 3 Commercial, financial & agricultural 2,736 1 2,242 24 Consumer 77 — 38 — Total impaired loans $ 11,018 $ 1 $ 11,694 $ 27 (1) The average recorded investment for troubled debt restructurings was $3.2 million and $4.1 million for the three and six months ended June 30, 2017 , respectively, and was $5.8 million and $7.7 million for the three and six months ended June 30, 2016 , respectively. (2) The interest income recognized on troubled debt restructurings was $0 for both the three and six months ended June 30, 2017 , and was $16,000 and $24,000 for the three and six months ended June 30, 2016 , respectively. The following table presents the recorded investment in nonaccrual loans by loan class at the dates indicated (dollars in thousands) : Nonaccrual Loans June 30, 2017 December 31, 2016 Construction, land & land development $ 215 $ 5,057 Other commercial real estate 49 56 Total commercial real estate 264 5,113 Residential real estate 1,013 1,146 Owner-occupied real estate 2,752 1,874 Commercial, financial & agricultural 2,484 1,426 Consumer 50 56 Total nonaccrual loans $ 6,563 $ 9,615 The following table presents an analysis of past due organic loans, by class of loans, at the dates indicated (dollars in thousands) : Organic Loans 30 - 89 Days Past Due 90 Days or Greater Past Due Total Past Due Current Total Loans Loans > 90 Days and Accruing June 30, 2017 Construction, land & land development $ — $ 215 $ 215 $ 413,342 $ 413,557 $ — Other commercial real estate — — — 960,762 960,762 — Total commercial real estate — 215 215 1,374,104 1,374,319 — Residential real estate 248 99 347 167,408 167,755 — Owner-occupied real estate 622 — 622 244,015 244,637 — Commercial, financial & agricultural 189 472 661 354,968 355,629 — Leases — — — 73,103 73,103 — Consumer 112 — 112 59,916 60,028 — Total organic loans $ 1,171 $ 786 $ 1,957 $ 2,273,514 $ 2,275,471 $ — December 31, 2016 Construction, land & land development $ 49 $ 12 $ 61 $ 499,957 $ 500,018 $ — Other commercial real estate — — — 754,790 754,790 — Total commercial real estate 49 12 61 1,254,747 1,254,808 — Residential real estate 157 118 275 144,020 144,295 — Owner-occupied real estate 40 — 40 256,277 256,317 — Commercial, financial & agricultural 247 283 530 326,851 327,381 — Leases — — — 71,724 71,724 — Consumer 350 31 381 35,658 36,039 — Total organic loans $ 843 $ 444 $ 1,287 $ 2,089,277 $ 2,090,564 $ — The following table presents an analysis of past due purchased non-credit impaired loans, by class of loans, at the dates indicated (dollars in thousands) : Purchased Non-Credit Impaired Loans 30 - 89 Days Past Due 90 Days or Greater Past Due Total Past Due Current Total Loans Loans > 90 Days and Accruing June 30, 2017 Construction, land & land development $ — $ — $ — $ 31,083 $ 31,083 $ — Other commercial real estate — 50 50 171,864 171,914 — Total commercial real estate — 50 50 202,947 202,997 — Residential real estate 458 93 551 116,898 117,449 — Owner-occupied real estate 164 2,579 2,743 111,695 114,438 — Commercial, financial & agricultural 892 706 1,598 30,056 31,654 — Consumer 1 5 6 3,387 3,393 — Total purchased non-credit impaired loans $ 1,515 $ 3,433 $ 4,948 $ 464,983 $ 469,931 $ — December 31, 2016 Construction, land & land development $ 495 $ — $ 495 $ 50,713 $ 51,208 $ — Other commercial real estate 17 56 73 209,458 209,531 — Total commercial real estate 512 56 568 260,171 260,739 — Residential real estate 274 165 439 144,157 144,596 — Owner-occupied real estate 387 1,687 2,074 113,492 115,566 — Commercial, financial & agricultural 144 552 696 35,510 36,206 — Consumer 38 2 40 6,215 6,255 — Total purchased non-credit impaired loans $ 1,355 $ 2,462 $ 3,817 $ 559,545 $ 563,362 $ — The following table presents an analysis of past due purchased credit impaired loans, by class of loans, at the dates indicated (dollars in thousands) : Purchased Credit Impaired Loans 30 - 89 Days Past Due 90 Days or Greater Past Due Total Past Due Current Total Loans June 30, 2017 Construction, land & land development $ 48 $ 1,909 $ 1,957 $ 14,900 $ 16,857 Other commercial real estate 657 3,775 4,432 41,646 46,078 Total commercial real estate 705 5,684 6,389 56,546 62,935 Residential real estate 2,462 2,251 4,713 40,800 45,513 Owner-occupied real estate 119 2,619 2,738 20,524 23,262 Commercial, financial & agricultural 52 6 58 3,559 3,617 Consumer 15 3 18 253 271 Total purchased credit impaired loans $ 3,353 $ 10,563 $ 13,916 $ 121,682 $ 135,598 December 31, 2016 Construction, land & land development $ 722 $ 1,853 $ 2,575 $ 13,962 $ 16,537 Other commercial real estate 346 3,148 3,494 57,248 60,742 Total commercial real estate 1,068 5,001 6,069 71,210 77,279 Residential real estate 1,210 2,787 3,997 50,510 54,507 Owner-occupied real estate 661 3,507 4,168 19,812 23,980 Commercial, financial & agricultural 29 61 90 4,443 4,533 Consumer — 5 5 342 347 Total purchased credit impaired loans $ 2,968 $ 11,361 $ 14,329 $ 146,317 $ 160,646 For each period indicated, a portion of the Company's purchased credit impaired loans were past due, including many that were 90 days or more past due; however, such delinquencies were included in the Company's performance expectations in determining the fair values of purchased credit impaired loans at each acquisition and at subsequent valuation dates. All purchased credit impaired loan cash flows and the timing of such cash flows continue to be estimable and probable of collection and thus accretion income continues to be recognized on these assets. As such, the referenced purchased credit impaired loans are not considered nonperforming assets. Asset Quality Grades: The Company assigns loans into risk categories based on relevant information about the ability of borrowers to pay their debts, such as current financial information, historical payment experience, credit documentation, public information and current economic trends, among other factors. A loan's risk grade is assigned at inception based upon the strength of the repayment sources and reassessed periodically throughout the year. Loans over certain dollar thresholds identified as having weaknesses are subject to more frequent review. In addition, the Company's internal loan review department provides an ongoing, comprehensive and independent assessment of credit risk within the Company. Loans are graded on a scale of 1 to 8. Pass grades are from 1 to 4. Descriptions of the general characteristics of grades 5 and above are as follows: Watch (Grade 5) —Loans graded Watch are pass credits that have not met performance expectations or that have higher inherent risk characteristics warranting continued supervision and attention. OAEM (Grade 6) —Loans graded OAEM (other assets especially mentioned) have 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 in the Company's credit position at some future date. OAEM loans are not adversely classified and do not expose the institution to sufficient risk to warrant adverse classification. Substandard (Grade 7) —Loans classified as substandard are inadequately protected by the current sound worth and payment capacity of the obligor or of the collateral pledged, if any. Loans so classified have a well-defined weakness, or weaknesses, that jeopardize the liquidation of the debt. They are characterized by the distinct possibility that the institution will sustain some loss if the deficiencies are not corrected. Doubtful (Grade 8) —Loans classified as doubtful have all the weaknesses inherent in those classified as substandard, with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, conditions, and values, highly questionable and improbable. The following table presents the risk grades of the organic loan portfolio, by class of loans, at the dates indicated (dollars in thousands) : Organic Loans Pass Watch OAEM Substandard Doubtful Total June 30, 2017 Construction, land & land development $ 382,550 $ 30,606 $ 88 $ 313 $ — $ 413,557 Other commercial real estate 927,904 32,858 — — — 960,762 Total commercial real estate 1,310,454 63,464 88 313 — 1,374,319 Residential real estate 162,901 3,307 118 1,429 — 167,755 Owner-occupied real estate 226,007 16,387 1,631 612 — 244,637 Commercial, financial & agricultural 353,593 770 744 522 — 355,629 Leases 66,042 7,061 — — — 73,103 Consumer 59,841 63 — 124 — 60,028 Total organic loans $ 2,178,838 $ 91,052 $ 2,581 $ 3,000 $ — $ 2,275,471 December 31, 2016 Construction, land & land development $ 470,686 $ 24,178 $ 97 $ 5,057 $ — $ 500,018 Other commercial real estate 718,969 35,821 — — — 754,790 Total commercial real estate 1,189,655 59,999 97 5,057 — 1,254,808 Residential real estate 139,393 2,484 460 1,958 — 144,295 Owner-occupied real estate 237,753 14,967 3,577 20 — 256,317 Commercial, financial & agricultural 325,161 920 624 676 — 327,381 Leases 60,849 10,875 — — — 71,724 Consumer 35,844 47 2 145 1 36,039 Total organic loans $ 1,988,655 $ 89,292 $ 4,760 $ 7,856 $ 1 $ 2,090,564 The following table presents the risk grades of the purchased non-credit impaired loan portfolio, by class of loans, at the dates indicated (dollars in thousands) : Purchased Non-Credit Impaired Loans Pass Watch OAEM Substandard Doubtful Total June 30, 2017 Construction, land & land development $ 30,629 $ 454 $ — $ — $ — $ 31,083 Other commercial real estate 169,000 2,287 578 49 — 171,914 Total commercial real estate 199,629 2,741 578 49 — 202,997 Residential real estate 114,387 2,581 122 359 — 117,449 Owner-occupied real estate 106,386 4,765 — 3,287 — 114,438 Commercial, financial & agricultural 29,472 — 87 2,095 — 31,654 Consumer 3,378 1 — 14 — 3,393 Total purchased non-credit impaired loans $ 453,252 $ 10,088 $ 787 $ 5,804 $ — $ 469,931 December 31, 2016 Construction, land & land development $ 51,208 $ — $ — $ — $ — $ 51,208 Other commercial real estate 206,515 803 2,157 56 — 209,531 Total commercial real estate 257,723 803 2,157 56 — 260,739 Residential real estate 142,079 1,883 314 320 — 144,596 Owner-occupied real estate 107,096 6,310 — 2,160 — 115,566 Commercial, financial & agricultural 34,747 310 21 1,128 — 36,206 Consumer 6,247 5 — 3 — 6,255 Total purchased non-credit impaired loans $ 547,892 $ 9,311 $ 2,492 $ 3,667 $ — $ 563,362 Classifications on purchased credit impaired loans are based upon the borrower's ability to pay the current unpaid principal balance without regard to the net carrying value of the loan on the Company's balance sheet. Because the values shown in the table below are based on each loan's estimated cash flows, any expected losses should be covered by a combination of the specific reserves established in the allowance for loan and lease losses on purchased credit impaired loans plus the discounts to the unpaid principal balances reflected in the recorded investment of each loan. The following table presents the risk grades of the purchased credit impaired loan portfolio, by class of loans (dollars in thousands) : Purchased Credit Impaired Loans Pass Watch OAEM Substandard Doubtful Total June 30, 2017 Construction, land & land development $ 9,331 $ 1,254 $ 933 $ 5,339 $ — $ 16,857 Other commercial real estate 20,527 12,874 2,215 10,462 — 46,078 Total commercial real estate 29,858 14,128 3,148 15,801 — 62,935 Residential real estate 24,213 7,587 2,048 11,402 263 45,513 Owner-occupied real estate 7,694 5,028 813 9,727 — 23,262 Commercial, financial & agricultural 2,616 297 202 502 — 3,617 Consumer 38 60 157 15 1 271 Total purchased credit impaired loans $ 64,419 $ 27,100 $ 6,368 $ 37,447 $ 264 $ 135,598 December 31, 2016 Construction, land & land development $ 7,798 $ 1,150 $ 1,416 $ 6,173 $ — $ 16,537 Other commercial real estate 33,423 13,103 2,770 11,446 — 60,742 Total commercial real estate 41,221 14,253 4,186 17,619 — 77,279 Residential real estate 28,628 10,371 2,840 12,396 272 54,507 Owner-occupied real estate 7,736 4,884 794 10,566 — 23,980 Commercial, financial & agricultural 3,381 310 273 569 — 4,533 Consumer 53 100 173 21 — 347 Total purchased credit impaired loans $ 81,019 $ 29,918 $ 8,266 $ 41,171 $ 272 $ 160,646 Allowance Estimation During the first quarter of 2017, the Company implemented an automated solution broadly deployed throughout the industry for its estimation of the allowance for loan and lease losses on its organic and purchased non-credit impaired loans. No change was made to the allowance estimation for purchased credit impaired loans. No material changes were made to the methodology used. However, the new model does allow for further granularity within our loan pools. The Company validated the new model against its existing model for three quarters prior to implementation. Troubled Debt Restructurings (TDRs) There were no troubled debt restructurings (TDRs) at June 30, 2017 . At December 31, 2016 , TDRs totaled $5.0 million with $148,000 in related allowance. At December 31, 2016 , there was no commitment to extend credit to a borrower with an existing troubled debt restructuring. Purchased credit impaired loans modified post-acquisition are not removed from their accounting pools and accounted for as TDRs, even if those loans would otherwise be deemed TDRs. The following table provides information on loans that were modified as TDRs during the periods presented (dollars in thousands) : June 30, 2017 June 30, 2016 TDR Additions (1) Number of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Number of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Six Months Ended Construction, land & land development — $ — $ — 1 $ 4,168 $ 4,168 Other commercial real estate — — — — — — Total commercial real estate — — — 1 4,168 4,168 Commercial & industrial — — — — — — Owner-occupied real estate — — — — — — Residential real estate — — — — — — Consumer & Other — — — — — — Total modifications — $ — $ — 1 $ 4,168 $ 4,168 (1) The pre-modification and post-modification recorded investment amount represents the recorded investment on the date of the loan modification. Since the modifications on this loan were an interest rate concession and payment term extension, not principal reductions, the pre-modification and post-modification recorded investment amount is the same. During the six months ended June 30, 2017 and 2016 , there were no TDRs that subsequently defaulted within twelve months of their modification dates.

Other Real Estate Owned (OREO)

Other Real Estate Owned (OREO)	6 Months Ended
	Jun. 30, 2017
Banking and Thrift [Abstract]
Other Real Estate Owned (OREO)	NOTE 7: OTHER REAL ESTATE OWNED (OREO) The following table presents other real estate owned ("OREO") by property type at the dates indicated (dollars in thousands) : Other real estate owned June 30, 2017 December 31, 2016 Construction, land development, and other land $ 1,146 $ 2,393 Commercial and farmland real estate 746 6,960 Residential real estate 515 1,544 Total other real estate owned $ 2,407 $ 10,897 The following table presents OREO by type of loan foreclosure or banking premises transferred into OREO at the dates indicated (dollars in thousands) : Other real estate owned June 30, 2017 December 31, 2016 Organic OREO $ 23 $ 282 Purchased Credit Impaired OREO 2,384 10,615 Total other real estate owned $ 2,407 $ 10,897 At June 30, 2017 , consumer mortgage loans secured by residential real estate properties totaling $123,000 were in formal foreclosure proceedings.

SBA Servicing Rights

SBA Servicing Rights	6 Months Ended
	Jun. 30, 2017
Transfers and Servicing [Abstract]
SBA Servicing Rights	NOTE 8: SBA SERVICING RIGHTS All sales of SBA loans, consisting of the guaranteed portion, are executed on a servicing retained basis. These loans, which are partially guaranteed by the SBA, are generally secured by business property such as real estate, inventory, equipment and accounts receivable. During the three months and six months ended June 30, 2017 , the Company sold SBA loans with unpaid principal balances totaling $16.5 million and $25.0 million , respectively, and recognized $1.6 million and $2.5 million in gains on the loan sales, respectively. During the three and six months ended June 30, 2016 , the Company sold SBA loans with unpaid principal balances totaling $13.3 million and $24.8 million , respectively, and recognized $1.4 million and $2.6 million in gains on the loan sales, respectively. The Company retains the related loan servicing rights and receives servicing fees on the sold loans. Both the servicing fees and the gains on sales of loans are recorded in SBA income on the consolidated statements of income. SBA servicing fees totaled $407,000 and $840,000 for the three and six months ended June 30, 2017 , respectively. SBA servicing fees totaled $314,000 and $591,000 for the three and six months ended June 30, 2016 , respectively. At June 30, 2017 and December 31, 2016 , the Company serviced SBA loans for others with unpaid principal balances totaling $169.3 million and $142.1 million , respectively. The table below summarizes the activity in the SBA servicing rights asset for the periods presented (dollars in thousands) : Three Months Ended Six Months Ended June 30 June 30 SBA Servicing Rights 2017 2016 2017 2016 Balance, beginning of period $ 3,547 $ 2,882 $ 3,477 $ 2,626 Additions 391 340 597 624 Fair value adjustments (110 ) (57 ) (246 ) (85 ) Balance, end of period $ 3,828 $ 3,165 $ 3,828 $ 3,165 The fair value of the SBA servicing rights asset, key metrics, and the sensitivity of the fair value due to adverse changes in key economic assumptions at the periods presented are as follows (dollars in thousands) : SBA Servicing Rights June 30, 2017 December 31, 2016 Fair value $ 3,828 $ 3,477 Weighted average discount rate 12.4 % 12.8 % Decline in fair value due to a 100 basis point adverse change $ (137 ) $ (122 ) Decline in fair value due to a 200 basis point adverse change (264 ) (236 ) Prepayment speed 8.2 % 8.0 % Decline in fair value due to a 10% adverse change $ (124 ) $ (108 ) Decline in fair value due to a 20% adverse change (241 ) (210 ) Weighted average remaining life (years) 7.0 7.1 The sensitivity calculations above are hypothetical and should not be considered to be predictive of future performance. As indicated, changes in fair value based on adverse changes in model inputs and/or assumptions generally cannot be extrapolated because the relationship of the change in input or assumption to the change in fair value may not be linear. In addition, the effect of an adverse variation in a particular input or assumption on the value of the SBA servicing rights is calculated without changing any other input or assumption. In reality, changes in one factor may magnify or counteract the effect of the change. The risk inherent in the SBA servicing rights asset includes prepayments at different rates than anticipated or resolution of loans at dates not consistent with the estimated expected lives. These events would cause the value of the servicing asset to decline at a faster or slower rate than originally anticipated. Information about the SBA loans serviced by the Company at and for the periods presented are as follows (dollars in thousands) : June 30, 2017 SBA Loans Serviced Unpaid Principal Balance 30 - 89 Days Past Due 90 Days or Greater Past Due Net Charge-offs for the Six Months Ended June 30, 2017 Serviced for others $ 169,329 $ 380 $ — $ — Held-for-sale 17,473 — — — Held-for-investment 159,052 1,455 7,390 210 Total SBA loans serviced $ 345,854 $ 1,835 $ 7,390 $ 210 December 31, 2016 SBA Loans Serviced Unpaid Principal Balance 30 - 89 Days Past Due 90 Days or Greater Past Due Net Charge-offs for the Six Months Ended June 30, 2016 Serviced for others $ 142,069 $ 522 $ — $ — Held-for-sale 16,356 — — — Held-for-investment 144,351 220 5,580 2,160 Total SBA loans serviced $ 302,776 $ 742 $ 5,580 $ 2,160

Derivative Instruments and Hedg

Derivative Instruments and Hedging Activities	6 Months Ended
	Jun. 30, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments and Hedging Activities	NOTE 9: DERIVATIVE INSTRUMENTS & HEDGING ACTIVITIES Interest Rate Swaps and Caps Risk Management Objective of Interest Rate Swaps and Caps The Company is exposed to certain risks arising from both its business operations and economic conditions. The Company principally manages its exposures to a wide variety of business and operational risks through management of its core business activities. The Company manages economic risks, including interest rate, liquidity and credit risk, primarily by managing the amount, sources and duration of certain balance sheet assets and liabilities. In the normal course of business, the Company also uses derivative financial instruments to add stability to interest income or expense and to manage its exposure to movements in interest rates. The Company does not use derivatives for trading or speculative purposes and only enters into transactions that have a qualifying hedging relationship. The Company's hedging strategies involving interest rate derivatives are classified as either Fair Value Hedges or Cash Flow Hedges, depending upon the rate characteristic of the hedged item. Fair Value Hedge : As a result of interest rate fluctuations, fixed-rate assets and liabilities will appreciate or depreciate in fair value. When effectively hedged, this appreciation or depreciation will generally be offset by fluctuations in the fair value of the derivative instruments that are linked to the hedged assets and liabilities. This strategy is referred to as a fair value hedge. Cash Flow Hedge : Cash flows related to floating-rate assets and liabilities will fluctuate with changes in an underlying rate index. When effectively hedged, the increases or decreases in cash flows related to the floating rate asset or liability will generally be offset by changes in cash flows of the derivative instrument designated as a hedge. This strategy is referred to as a cash flow hedge. Credit and Collateral Risks for Interest Rate Swaps and Caps The Company manages credit exposure on interest rate swap and cap transactions by entering into a bilateral credit support agreement with each counterparty. The credit support agreements require collateralization of exposures beyond specified minimum threshold amounts. The details of these agreements, including the minimum thresholds, vary by counterparty. Refer to Note 10 , Balance Sheet Offsetting, for more information on collateral pledged and received under these agreements. The Company’s agreements with its interest rate swap and cap counterparties contain a provision where if either party defaults on any of its indebtedness, then it could also be declared in default on its derivative obligations. The agreements with derivative counterparties also include provisions that if not met, could result in the Company being declared in default. If the Company were to be declared in default, the counterparty could terminate the derivative positions and the Company and the counterparty would be required to settle their obligations under the agreements. At June 30, 2017 , the termination value of derivatives in a net liability position under these agreements was $11,000 , for which the Company did not post any cash collateral. Although the Company did not breach any provisions at June 30, 2017 , if a breach had occurred, the maximum amount of collateral the Company would have been required to post to counterparties was $11,000 . Mortgage Derivatives Risk Management Objective of Mortgage Lending Activities The Company also maintains a risk management program to manage interest rate risk and pricing risk associated with its mortgage lending activities. The risk management program includes the use of forward contracts and other derivatives that are recorded in the financial statements at fair value and are used to offset changes in value of the mortgage inventory due to changes in market interest rates. As a normal part of our operations, we enter into derivative contracts to economically hedge risks associated with overall price risk related to interest rate lock commitments ("IRLCs") and mortgage loans held-for-sale for which the fair value option has been elected. Fair value changes occur as a result of interest rate movements as well as changes in the value of the associated servicing. Derivative instruments used include forward sale commitments and IRLCs. Commitments to fund mortgage loans (interest rate locks) to be sold into the secondary market and forward commitments for the future delivery of mortgage loans to third party investors are considered derivatives. It is the Company's practice to enter into forward commitments for the future delivery of mortgage loans in order to economically hedge the effect of changes in interest rates resulting from interest rate lock commitments. Credit and Collateral Risks for Mortgage Lending Activities The Company’s underlying risks are primarily related to interest rates and forward sales commitments entered into as part of its mortgage banking activities. Forward sales commitments are contracts for the delayed delivery or net settlement of an underlying instrument, such as a mortgage loan, in which the seller agrees to deliver on a specified future date, either a specified instrument at a specified price or yield or the net cash equivalent of an underlying instrument. These hedges are used to preserve the Company’s position relative to future sales of mortgage loans to third parties in an effort to minimize the volatility of the expected gain on sale from changes in interest rate and the associated pricing changes. Derivative Fair Values The table below presents the fair values of the Company's interest rate swaps and caps at the dates presented (dollars in thousands) : Asset Derivatives (1) Liability Derivatives (1) June 30, 2017 December 31, 2016 June 30, 2017 December 31, 2016 Derivatives Designated as Hedging Instruments Interest rate swaps and caps $ 1,717 $ 1,774 $ 495 $ 641 Derivatives Not Designated as Hedging Instruments Interest rate swaps $ 15 $ 19 $ 74 $ 85 Mortgage derivatives 990 1,362 439 459 (1) All asset derivatives are located in "Other Assets" on the consolidated statements of financial condition and all liability derivatives are located in "Other Liabilities" on the consolidated statements of financial condition. Derivatives Designated as Hedging Instruments Fair Value Hedges The Company uses interest rate swaps as part of its interest rate risk management strategy. Interest rate swaps, designated as fair value hedges, involve the receipt of variable amounts from a counterparty in exchange for the Company making fixed payments over the life of the agreements without the exchange of the underlying notional amount. The gain or loss on the derivative as well as the offsetting gain or loss on the hedged item attributable to the hedged risk are recognized in earnings. At June 30, 2017 , the Company had 94 interest rate swaps with an aggregate notional amount of $164.5 million , designated as fair value hedges associated with the Company's fixed rate loan program. The table below presents the effect of the Company's derivatives in fair value hedging relationships for the periods presented (dollars in thousands) : Three Months Ended Six Months Ended June 30 June 30 Interest Rate Products Location 2017 2016 2017 2016 Amount of (loss) gain recognized in income on derivatives Noninterest income $ (464 ) $ (1,471 ) $ 32 $ (4,373 ) Amount of gain (loss) recognized in income on hedged items Noninterest income 425 1,355 (83 ) 4,062 Total net loss recognized in income on fair value hedge ineffectiveness $ (39 ) $ (116 ) $ (51 ) $ (311 ) During the three and six months ended June 30, 2017 the Company recognized net losses of $39,000 and $51,000 , respectively, related to hedge ineffectiveness on the fair value swaps. During the three and six months ended June 30, 2016 , the Company recognized net losses of $116,000 and $311,000 , respectively, related to hedge ineffectiveness on the fair value swaps. The Company also recognized a net reduction in interest income of $258,000 and $585,000 for the three and six months ended June 30, 2017 , respectively, related to the fair value hedges, which includes net settlements on derivatives and any amortization adjustment of the basis in the hedged items. For the three and six months ended June 30, 2016 the Company recognized a net reduction in interest income of $491,000 and $963,000 , respectively, related to the fair value hedges. For the three and six months ended June 30, 2016 the Company recognized net gains (losses) of $1,000 and $(47,000) related to the unamortized basis in the hedged items. Cash Flow Hedges The Company uses interest rate caps as part of its interest rate risk management strategy. Interest rate caps, designated as cash flow hedges, involve the payment of a premium to a counterparty based on the notional size and cap strike rate. The Company's current cash flow hedges are for the purpose of capping interest rates paid on deposits, which protects the Company in a rising rate environment. The caps were purchased during the first quarter of 2013 to hedge the variable cash outflows associated with these liabilities; they originally had a five -year life and notional value of $200.0 million . The effective portion of changes in the fair value of derivatives designated and that qualify as cash flow hedges is recorded in accumulated other comprehensive income (AOCI) and is subsequently reclassified into earnings in the period the hedged forecasted transaction affects earnings. The ineffective portion of the change in fair value of derivatives that qualify as cash flow hedges is recognized directly in earnings. No hedge ineffectiveness was recognized on the Company's cash flow hedges during the periods ended June 30, 2017 and 2016 . Amounts reported in AOCI related to derivatives are reclassified to interest expense as the interest rate cap premium is amortized over the life of the cap. During the next twelve months, $856,000 is expected to be reclassified as a decrease to net interest income. The table below presents the effect of the Company's derivatives in cash flow hedging relationships for the periods presented (dollars in thousands) : Three Months Ended Six Months Ended June 30 June 30 Interest Rate Products Location 2017 2016 2017 2016 Amount of gain (loss) recognized in AOCI on derivatives (effective portion) OCI $ 21 $ (238 ) $ 80 $ (920 ) Amount of loss reclassified from AOCI into income (effective portion) Interest expense 430 266 834 484 Amount of loss recognized in consolidated statements of comprehensive income $ (409 ) $ (504 ) $ (754 ) $ (1,404 ) Derivatives Not Designated as Hedging Instruments Interest Rate Swaps At June 30, 2017 , the Company had two interest rate swaps with an aggregate notional amount of $6.6 million not designated as fair value hedges associated with the Company's fixed rate loan program. At June 30, 2017 , the fair value of the interest rate swaps asset and liability not designated as hedging instruments were $15,000 and $74,000 , respectively. For the three and six months ended June 30, 2017 , there was a net loss of $40,000 and a net loss of $56,000 , respectively, recorded in the income statement for the interest rate swaps not designated as hedging instruments. For the three and six months ended June 30, 2016 there were net losses of $65,000 and $220,000 , respectively recorded in the income statement for the interest rate swaps not designated as hedging instruments. Mortgage Derivatives Mortgage derivative fair value assets and liabilities are recorded in "Other Assets" and "Other Liabilities," respectively, on the consolidated statements of financial condition. At June 30, 2017 and December 31, 2016 , the fair value of mortgage derivative assets was $1.0 million and $1.4 million , respectively, and the fair value of mortgage derivative liabilities was $439,000 and $459,000 , respectively. At June 30, 2017 and December 31, 2016 , the Company had approximately $56.6 million and $49.9 million , respectively, of interest rate lock commitments, and $77.6 million and $76.7 million , respectively, of forward commitments for the future delivery of residential mortgage loans. The net loss related to interest rate lock commitments for the three months ended June 30, 2017 was $284,000 , compared to a gain of $172,000 for the same period in 2016 . The net gain s related to interest rate lock commitments were $329,000 and $743,000 for the six months ended June 30, 2017 and 2016 , respectively. The net gain for forward commitments related to these mortgage loans was $303,000 for the three months ended June 30, 2017 , compared to a net loss of $508,000 for the same period in 2016 . The net loss es for forward commitments were $682,000 and $850,000 for the six months ended June 30, 2017 and June 30, 2016 , respectively. The table below presents the effect of the Company's derivatives not designated as hedging instruments for the periods presented (dollars in thousands) : Three Months Ended Six Months Ended June 30 June 30 Interest Rate Products Location 2017 2016 2017 2016 Amount of loss recognized in income on interest rate swaps Noninterest income $ (40 ) $ (65 ) $ (56 ) $ (220 ) Amount of (loss) gain recognized in income on interest rate lock commitments Noninterest income (284 ) 172 329 743 Amount of gain (loss) recognized in income on forward commitments Noninterest income 303 (508 ) (682 ) (850 ) Total loss recognized in income on derivatives not designated as hedging instruments $ (21 ) $ (401 ) $ (409 ) $ (327 )

Balance Sheet Offsetting and Re

Balance Sheet Offsetting and Repurchase Agreements	6 Months Ended
	Jun. 30, 2017
Offsetting [Abstract]
Balance Sheet Offsetting and Repurchase Agreements	NOTE 10: BALANCE SHEET OFFSETTING AND REPURCHASE AGREEMENTS Balance Sheet Offsetting Certain financial instruments, including repurchase agreements and derivatives (interest rate swaps and caps), may be eligible for offset in the consolidated statements of financial condition and/or subject to master netting arrangements or similar agreements; however, the Company does not offset assets and liabilities under these arrangements for financial statement presentation purposes. The table below presents information about the Company’s financial instruments that are eligible for offset in the consolidated statements of financial condition at the dates presented (dollars in thousands) : Gross Amounts Recognized Gross Amounts Offset on the Statement of Financial Condition Net Amounts Presented on the Statement of Financial Condition Gross Amounts Not Offset on the Statement of Financial Condition Net Amount Financial Instruments Collateral Received/Posted (1) June 30, 2017 Offsetting Assets Interest rate swaps and caps $ 1,732 $ — $ 1,732 $ (557 ) $ (100 ) $ 1,075 Offsetting Liabilities Interest rate swaps and caps $ 569 $ — $ 569 $ (557 ) $ — $ 12 Repurchase agreements 25,256 — 25,256 — (25,256 ) — Total liabilities $ 25,825 $ — $ 25,825 $ (557 ) $ (25,256 ) $ 12 December 31, 2016 Offsetting Assets Interest rate swaps and caps $ 1,793 $ — $ 1,793 $ (718 ) $ (1,075 ) $ — Offsetting Liabilities Interest rate swaps and caps $ 726 $ — $ 726 $ (718 ) $ — $ 8 Repurchase agreements 25,722 — 25,722 — (25,722 ) — Total liabilities $ 26,448 $ — $ 26,448 $ (718 ) $ (25,722 ) $ 8 (1) The application of collateral cannot reduce the net amount below zero; therefore, excess collateral received/posted is not reflected in this table. All positions are fully collateralized. Repurchase Agreements The Company utilizes securities sold under repurchase agreements to facilitate the needs of our customers. Securities sold under repurchase agreements consist of balances in the transaction accounts of commercial customers swept nightly to an overnight investment account and are collateralized with investment securities having a market value no less than the balance borrowed. The investment securities pledged are subject to market fluctuations as well as prepayments of principal. The Company monitors the risk of the fair value of its pledged collateral falling below the balance of the repurchase agreements on a daily basis and may be required to provide additional collateral. Securities pledged as collateral are maintained with our safekeeping agent. At June 30, 2017 and December 31, 2016 , securities sold under repurchase agreements were $25.3 million and $25.7 million , respectively, all of which mature on an overnight and continuous basis. At both June 30, 2017 and December 31, 2016 , investment securities pledged for the outstanding repurchase agreements consisted of U.S. government sponsored agency mortgage-backed securities.

Regulatory Matters

Regulatory Matters	6 Months Ended
	Jun. 30, 2017
Banking and Thrift [Abstract]
Regulatory Matters	NOTE 11: REGULATORY MATTERS Regulatory Capital Requirements Beginning on January 1, 2015, the Company and State Bank became subject to the provisions of the Basel III final rule that governs the regulatory capital calculation, including transitional, or phase-in, provisions. The methods for calculating the risk-based capital ratios will change as the provisions of the Basel III final rule related to the numerator (capital) and denominator (risk-weighted assets) are fully phased in on January 1, 2019. The ongoing methodological changes will result in differences in the reported capital ratios from one reporting period to the next that are independent of applicable changes in the capital base, asset composition, off-balance sheet exposures or risk profile. Beginning on January 1, 2016, the Company and State Bank must maintain a capital conservation buffer to avoid restrictions on capital distributions or discretionary bonus payments. This buffer must consist solely of Common Equity Tier 1 Capital, but the buffer applies to all three measurements (Common Equity Tier 1, Tier 1 capital and total capital) in addition to the minimum risk-based capital requirements. The capital conservation buffer required for 2017 is common equity equal to 1.25% of risk-weighted assets and will increase by .625% per year until reaching 2.5% beginning January 1, 2019. The minimum regulatory capital ratios and ratios to be considered well-capitalized under prompt corrective action provisions at both June 30, 2017 and December 31, 2016 are presented in the table below: Capital Ratio Requirements Minimum Requirement Well-capitalized (1) Common Equity Tier 1 (CET1) capital ratio 4.50% 6.50% Tier 1 risk-based capital ratio 6.00% 8.00% Total risk-based capital ratio 8.00% 10.00% Tier 1 leverage ratio 4.00% 5.00% (1) The prompt corrective action provisions are only applicable at the bank level. At June 30, 2017 and December 31, 2016 , the Company and State Bank exceeded all regulatory capital adequacy requirements to which they were subject. The Company's regulatory ratios at the dates indicated are presented in the table below (dollars in thousands) : June 30, 2017 December 31, 2016 Actual Required Actual Required Amount Ratio Minimum Amount Amount Ratio Minimum Amount Company Common Equity Tier 1 (CET1) capital ratio $ 542,230 14.98 % $ 162,934 $ 526,282 14.78 % $ 160,258 Tier 1 risk-based capital ratio 542,230 14.98 % 217,245 526,282 14.78 % 213,678 Total risk-based capital ratio 570,218 15.75 % 289,661 552,880 15.52 % 284,904 Tier 1 leverage ratio 542,230 13.23 % 163,943 526,282 14.90 % 141,273 State Bank's regulatory ratios at the dates indicated are presented in the table below (dollars in thousands) : June 30, 2017 December 31, 2016 Actual Required Actual Required Amount Ratio Minimum Amount Well Capitalized Amount Amount Ratio Minimum Amount Well Capitalized Amount State Bank Common Equity Tier 1 (CET1) capital ratio $ 464,608 12.89 % $ 162,255 $ 234,369 $ 463,164 13.06 % $ 159,535 $ 230,440 Tier 1 risk-based capital ratio 464,608 12.89 % 216,340 288,454 463,164 13.06 % 212,714 283,618 Total risk-based capital ratio 492,596 13.66 % 288,454 360,567 489,762 13.81 % 283,618 354,523 Tier 1 leverage ratio 464,608 11.40 % 162,990 203,738 463,164 13.18 % 140,572 175,715 Regulatory Restrictions on Dividends Regulatory policy statements provide that generally bank holding companies should pay dividends only out of current operating earnings and that the level of dividends must be consistent with current and expected capital requirements. Dividends received from State Bank have been the primary source of funds available for the declaration and payment of dividends to the Company's common shareholders. Federal and state banking laws and regulations restrict the amount of dividends banks may distribute without prior regulatory approval. At June 30, 2017 , State Bank had no capacity to pay dividends of to the Company without prior regulatory approval. At June 30, 2017 , the Company had $61.4 million in cash and due from bank accounts, which can be used for additional capital as needed by State Bank, payment of holding company expenses, payment of dividends to shareholders, or for other corporate purposes.

Commitments and Contingent Liab

Commitments and Contingent Liabilities	6 Months Ended
	Jun. 30, 2017
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingent Liabilities	NOTE 12: COMMITMENTS AND CONTINGENT LIABILITIES Commitments In order to meet the financing needs of its customers, the Company maintains financial instruments with off-balance-sheet risk in the normal course of business. These financial instruments include commitments to extend credit and standby letters of credit and involve, to varying degrees, elements of credit, interest rate and/or liquidity risk. Such financial instruments are recorded when they are funded and the related fees are generally recognized when collected. Commitments to extend credit are legally binding agreements to lend to customers. Commitments generally have fixed maturity dates or other termination clauses with required fee payments. Since many of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future liquidity requirements. The amount of collateral required, if deemed necessary upon extension of credit, is determined on a case by case basis by management through credit evaluation of the customer. Standby letters of credit are commitments guaranteeing performance of a customer to a third party. Those guarantees are issued primarily to support public and private borrowing arrangements. In order to minimize its exposure, the Company's credit policies govern the issuance of standby letters of credit. The Company's exposure to credit loss is represented by the contractual amount of those instruments. The Company uses the same credit policies in making commitments and conditional obligations as we do for on-balance-sheet instruments. A summary of the Company's commitments is as follows (dollars in thousands) : June 30, 2017 December 31, 2016 Commitments to extend credit: Fixed $ 63,103 $ 63,166 Variable 661,055 608,176 Letters of credit: Fixed 4,995 6,985 Variable 3,325 3,239 Total commitments $ 732,478 $ 681,566 The fixed rate loan commitments have maturities ranging from one month to fourteen years . Management takes appropriate actions to mitigate interest rate risk associated with these fixed rate commitments through various measures including, but not limited to, the use of derivative financial instruments. Contingent Liabilities Mortgage loan sales agreements contain covenants that may, in limited circumstances, require the Company to repurchase or indemnify the investors for losses or costs related to the loans the Company has sold. As a result of the potential recourse provisions, the Company maintains a recourse liability for mortgage loans sold to investors. At June 30, 2017 , the recourse liability was $304,000 . Furthermore, in the normal course of business, the Company is involved in various legal proceedings. In the opinion of management, any liability resulting from such proceedings would not have a material effect on the Company's financial statements.

Fair Value

Fair Value	6 Months Ended
	Jun. 30, 2017
Fair Value Disclosures [Abstract]
Fair Value	NOTE 13: FAIR VALUE Overview Fair value measurements are determined based on the assumptions that market participants would use in pricing an asset or liability. As a basis for considering market participant assumptions in fair value measurements, the Financial Accounting Standards Board's Accounting Standards Codification Topic 820 ("ASC 820") Fair Value Measurements and Disclosures establishes a fair value hierarchy that distinguishes between market participant assumptions based on market data obtained from sources independent of the reporting entity (observable inputs that are classified within Levels 1 and 2 of the hierarchy) and the reporting entity's own assumptions about market participant assumptions developed based on the best information available in the circumstances (unobservable inputs classified within Level 3 of the hierarchy). Fair Value Hierarchy Level 1 Valuation is based on inputs that are quoted prices (unadjusted) in active markets for identical assets or liabilities that the Company has the ability to access at the measurement date. Level 2 Valuation is based on inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly, such as interest rates, yield curves observable at commonly quoted intervals, and other market-corroborated inputs. Level 3 Valuation is generated from techniques that use at least one significant assumption not observable in the market. These unobservable assumptions reflect estimates of assumptions that market participants would use in pricing the asset or liability. Valuation techniques include the use of option pricing models, discounted cash flow models and similar techniques. In general, fair value is based upon quoted market prices, where available. If such quoted market prices are not available, fair value is based upon internally developed models that primarily use, as inputs, observable market-based parameters. In instances where the determination of the fair value measurement is based on inputs from different levels of the fair value hierarchy, the level in the fair value hierarchy within which the entire fair value measurement falls is based on the lowest level input that is significant to the fair value measurement in its entirety. The Company's assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment, and considers factors specific to the asset or liability. The Company evaluates fair value measurement inputs on an ongoing basis in order to determine if there is a change of sufficient significance to warrant a transfer between levels. Transfers between levels of the fair value hierarchy are recognized on the actual date of the event or circumstances that caused the transfer, which generally coincides with the Company's valuation process. For the six months ended June 30, 2017 and the year ended December 31, 2016 , there were no transfers between levels. Fair Value Option ASC 820 allows companies to report selected financial assets and liabilities at fair value using the fair value option. The changes in fair value are recognized in earnings and the assets and liabilities measured under this methodology are required to be displayed separately on the balance sheet. The Company made the election to record mortgage loans held-for-sale at fair value under the fair value option, which allows for a more effective offset of the changes in fair values of the loans and the derivative instruments used to hedge them without the burden of complying with the requirements for hedge accounting. Financial Assets and Financial Liabilities Measured on a Recurring Basis The Company uses the following methods and assumptions in estimating the fair value of its financial assets and financial liabilities on a recurring basis: Investment Securities Available-for-Sale At June 30, 2017 , the Company's investment portfolio primarily consisted of U.S. government agency mortgage-backed securities, nonagency mortgage-backed securities, U.S. government securities, municipal securities, asset-backed securities, and corporate securities. Fair Values for U.S. Treasury and equity securities are determined by obtaining quoted prices on nationally recognized securities exchanges utilizing Level 1 inputs. Other securities classified as available-for-sale are reported at fair value utilizing Level 2 inputs. The fair value of other securities classified as available-for-sale are determined using widely accepted valuation techniques including matrix pricing and broker-quote-based applications. Inputs may include dealer quotes, market spreads, cash flows, the U.S. Treasury yield curve, live trading levels, trade execution data, market consensus prepayment speeds, credit information and the bond's terms and conditions, among other relevant items. The Company reviews the prices supplied by the independent pricing service, as well as their underlying pricing methodologies, for reasonableness and to ensure such prices are aligned with traditional pricing matrices. From time to time, the Company validates the appropriateness of the valuations provided by the independent pricing service to prices obtained from an additional third party or prices derived using internal models. Hedged Loans Loans involved in fair value hedges are recorded at fair value on a recurring basis. The estimated fair value is determined using Level 2 inputs consistent with the valuation methodology for interest rate swaps discussed below. The Company does not record other loans held for investment at fair value on a recurring basis. Mortgage Loans Held-for-Sale Mortgage loans held-for-sale are recorded at fair value on a recurring basis. The estimated fair value is determined using Level 2 inputs based on observable data such as the existing forward commitment terms or the current market value of similar loans. Interest income is recorded in interest income on the consolidated statements of income and is based on the contractual terms of the loan. None of these loans were 90 days or more past due or on nonaccrual at June 30, 2017 . At June 30, 2017 , the aggregate fair value of the Company's mortgage loans held-for-sale was $31.4 million and the contractual balance including accrued interest was $30.7 million , with a fair value mark totaling $692,000 . The Company recognized a loss of $243,000 and a gain of $482,000 for the three and six months ended June 30, 2017 , respectively, related to the change in fair value of the mortgage loans held-for-sale, included in "mortgage banking income" on the consolidated statements of income. For the three and six months ended June 30, 2016 , the amount recognized related to the change in fair value of the mortgage loans held-for-sale were gain s of $618,000 and $1.1 million , respectively. Derivative Financial Instruments Interest Rate Swaps and Caps The Company uses interest rate swaps to provide longer-term fixed rate funding to its customers and interest rate caps to mitigate the interest rate risk on its variable rate liabilities. The majority of these derivatives are traded within highly active dealer markets. In order to determine the fair value of these instruments, the Company utilizes the exchange price or dealer market price for the particular derivative contract. Therefore, these derivative contracts are classified as Level 2. The Company utilizes an independent third party valuation company to validate the dealer prices. In cases where significant credit valuation adjustments are incorporated into the estimation of fair value, reported amounts are considered to have been derived utilizing Level 3 inputs. The Company evaluates the credit risk of its counterparties as well as that of the Company. The Company has considered factors such as the likelihood of default by the Company and its counterparties, its net exposures, and remaining contractual life, among other things, in determining if any fair value adjustments related to credit risk are required. Counterparty exposure is evaluated by netting positions that are subject to master netting arrangements, as well as considering the amount of collateral securing the position. The Company reviews its counterparty exposure on a regular basis, and, when necessary, appropriate business actions are taken to adjust the exposure. The Company also utilizes this approach to estimate its own credit risk on derivative liability positions. To date, the Company has not realized any losses due to a counterparty's inability to pay any net uncollateralized position. Mortgage Derivatives Mortgage derivatives include interest rate lock commitments to originate residential mortgage loans held-for-sale. The Company relies on an internal valuation model to estimate the fair value of its interest rate lock commitments to originate residential mortgage loans held-for-sale. The model groups the interest rate lock commitments by interest rate and term, applies an estimated pull-through rate based on historical experience, and then multiplies by quoted investor prices which were determined to be reasonably applicable to the loan commitment group based on interest rate, term, and rate lock expiration date of the loan commitment group. While there are Level 2 and 3 inputs used in the valuation model, the Company has determined that the majority of the inputs significant in the valuation of the interest rate lock commitments fall within Level 3 of the fair value hierarchy. Changes in the fair values of these derivatives are included in "mortgage banking income" on the consolidated statements of income. Mortgage derivatives also include forward commitments to sell residential mortgage loans to various investors when interest rate locks are entered into, in order to hedge the change in interest rates resulting from its commitment to fund loans. The Company also relies on an internal valuation model to estimate the fair value of its forward commitments to sell residential mortgage loans (i.e., an estimate of what the Company would receive or pay to terminate the forward delivery contract based on market prices for similar financial instruments), which includes matching specific terms and maturities of the forward commitments against applicable investor pricing available (Level 2). Changes in the fair values of these derivatives are included in "mortgage banking income" on the consolidated statements of income. SBA Servicing Rights The Company has the rights to service a portfolio of SBA loans. The SBA servicing rights are measured at fair value when loans are sold on a servicing retained basis. The servicing rights are subsequently measured at fair value on a recurring basis utilizing Level 3 inputs. Management uses a model operated and maintained by a third party to calculate the present value of future cash flows using the third party's market-based assumptions. The future cash flows for each asset are based on the asset's unique characteristics and the third party's market-based assumptions for prepayment speeds, default and voluntary prepayments. For non-guaranteed portions of servicing assets, future cash flows are estimated using loan specific assumptions for losses and recoveries. Adjustments to fair value are recorded as a component of "SBA income" on the consolidated statements of income. Please reference Note 8 for the rollforward of the SBA servicing rights asset at fair value utilizing level 3 inputs. The following tables present financial assets and financial liabilities measured at fair value on a recurring basis at the dates indicated, segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value (dollars in thousands) : June 30, 2017 Quoted Market Prices in Active Markets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Assets: U.S. Government securities $ — $ 84,229 $ — $ 84,229 States and political subdivisions — 301 — 301 Residential mortgage-backed securities — nonagency — 135,137 — 135,137 Residential mortgage-backed securities — agency — 513,054 — 513,054 Corporate securities — 115,074 — 115,074 Hedged loans — 169,592 — 169,592 Mortgage loans held-for-sale — 31,422 — 31,422 Mortgage derivatives — 100 890 990 Interest rate swaps and caps — 1,732 — 1,732 SBA servicing rights — — 3,828 3,828 Total recurring assets at fair value $ — $ 1,050,641 $ 4,718 $ 1,055,359 Liabilities: Interest rate swaps and caps $ — $ 569 $ — $ 569 Mortgage derivatives — 54 385 439 Total recurring liabilities at fair value $ — $ 623 $ 385 $ 1,008 December 31, 2016 Quoted Market Prices in Active Markets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Assets: U.S. Government securities $ — $ 88,649 $ — $ 88,649 States and political subdivisions — 301 — 301 Residential mortgage-backed securities — nonagency — 154,009 — 154,009 Residential mortgage-backed securities — agency — 529,302 — 529,302 Corporate securities — 74,917 — 74,917 Hedged loans — 167,165 — 167,165 Mortgage loans held for sale — 35,813 — 35,813 Mortgage derivatives — 663 699 1,362 Interest rate swaps and caps — 1,793 — 1,793 SBA servicing rights — — 3,477 3,477 Total recurring assets at fair value $ — $ 1,052,612 $ 4,176 $ 1,056,788 Liabilities: Interest rate swaps and caps $ — $ 726 $ — $ 726 Mortgage derivatives — 14 445 459 Total recurring liabilities at fair value $ — $ 740 $ 445 $ 1,185 Changes in the carrying value of mortgage derivatives utilizing Level 3 inputs are presented in the following tables for the periods presented (dollars in thousands) : Three Months Ended June 30 Six Months Ended June 30 2017 2017 Mortgage Derivatives Other Assets Other Liabilities Other Assets Other Liabilities Balance, beginning of period $ 1,096 $ 465 $ 699 $ 445 Issuances (1) 362 363 1,204 828 Settlements and closed loans (1) (568 ) (443 ) (1,013 ) (888 ) Balance, end of period $ 890 $ 385 $ 890 $ 385 Three Months Ended June 30 Six Months Ended June 30 2016 2016 Mortgage Derivatives Other Assets Other Liabilities Other Assets Other Liabilities Balance, beginning of period $ 1,350 $ 635 $ 651 $ 361 Issuances (1) 606 542 1,657 1,169 Settlements and closed loans (1) (618 ) (617 ) (970 ) (970 ) Balance, end of period $ 1,338 $ 560 $ 1,338 $ 560 (1) The change in fair value, recorded as a component of "mortgage banking income" on the consolidated statements of income, was a loss of $126,000 and a gain of $251,000 for the three months and six months ended June 30, 2017 , respectively. The change in fair value resulted in gain s of $63,000 and $488,000 for the three and six months ended June 30, 2016 . Financial Assets Measured on a Nonrecurring Basis The Company uses the following methods and assumptions in estimating the fair value of its financial assets on a nonrecurring basis: Impaired Loans Loans, excluding purchased credit impaired loans, are considered impaired when, based on current information and events, it is probable that the Company will be unable to collect all amounts due according to the contractual terms of the loan agreement. The fair values of impaired loans are measured on a nonrecurring basis and are based on the underlying collateral value of each loan if repayment is expected solely from the collateral. Collateral values are estimated using Level 2 inputs that are based on observable market data such as an appraisal. Updated appraisals are obtained on at least an annual basis. Level 3 inputs are based on the Company's customized discounting criteria when management determines the fair value of the collateral is further impaired. The following table presents financial assets measured at fair value on a nonrecurring basis at the dates indicated, segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value (dollars in thousands) : Quoted Market Prices in Active Markets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total June 30, 2017 Impaired loans $ — $ — $ 6,027 $ 6,027 Total nonrecurring assets at fair value $ — $ — $ 6,027 $ 6,027 December 31, 2016 Impaired loans $ — $ — $ 8,784 $ 8,784 Total nonrecurring assets at fair value $ — $ — $ 8,784 $ 8,784 Impaired loans, excluding purchased credit impaired loans, that are measured for impairment using the fair value of collateral for collateral dependent loans had recorded investments of $6.6 million and $9.6 million with respective valuation allowances of $572,000 and $831,000 at June 30, 2017 and December 31, 2016 , respectively. Nonfinancial Assets Measured on a Nonrecurring Basis The Company uses the following methods and assumptions in estimating the fair values of its nonfinancial assets on a nonrecurring basis: Other Real Estate Owned Other real estate owned ("OREO") consists of real estate acquired through foreclosure or a deed in lieu of foreclosure in satisfaction of a loan, OREO acquired in a business acquisition, and banking premises no longer used for a specific business purpose. Real estate obtained in satisfaction of a loan is initially recorded at the lower of the principal investment in the loan or the fair value of the collateral less estimated costs to sell at the time of foreclosure with any excess in loan balance charged against the allowance for loan and lease losses. OREO acquired in a business acquisition is recorded at fair value on Day 1 of the acquisition. Banking premises no longer used for a specific business purpose is transferred into OREO at the lower of its carrying value or fair value less estimated costs to sell with any excess in the carrying value charged to noninterest expense. For all fair value estimates of the real estate properties, management considers a number of factors such as appraised values, estimated selling prices, and current market conditions, resulting in a Level 3 classification. Management periodically reviews the carrying value of OREO for impairment and adjusts the values as appropriate through noninterest expense. The following table presents nonfinancial assets measured at fair value on a nonrecurring basis at the dates indicated, segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value ( dollars in thousands ): Quoted Market Prices in Active Markets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total June 30, 2017 Other real estate owned $ — $ — $ 2,880 $ 2,880 December 31, 2016 Other real estate owned $ — $ — $ 13,292 $ 13,292 The following table is a reconciliation of the fair value measurement of other real estate owned disclosed in accordance with ASC 820 to the amount recorded on the consolidated statement of financial condition at the dates indicated (dollars in thousands) : June 30, 2017 December 31, 2016 Other real estate owned: Other real estate owned at fair value $ 2,880 $ 13,292 Estimated selling costs and other adjustments (473 ) (2,395 ) Other real estate owned $ 2,407 $ 10,897 Unobservable Inputs for Level 3 Fair Value Measurements The following tables provide information describing the unobservable inputs used in Level 3 fair value measurements at the dates indicated (dollars in thousands) : June 30, 2017 Fair Value Valuation Technique Unobservable Inputs Range (Weighted Average) SBA servicing rights $ 3,828 Discounted cash flows Discount rate 9% - 19% (12%) Prepayment speed 3% - 12% (8%) Mortgage derivatives - asset $ 890 Pricing model Pull-through rate 83% Mortgage derivatives - liability $ 385 Pricing model Pull-through rate 83% Impaired loans - collateral dependent $ 6,027 Third party appraisal Management discount for property type and recent market volatility 0% - 50% (9%) Other real estate owned $ 2,880 Third party appraisal Management discount for property type and recent market volatility 0% - 33% (14%) December 31, 2016 Fair Value Valuation Technique Unobservable Inputs Range (Weighted Average) SBA servicing rights $ 3,477 Discounted cash flows Discount rate 9% - 18% (13%) Prepayment speed 3% - 11% (8%) Mortgage derivatives - asset $ 699 Pricing model Pull-through rate 84% Mortgage derivatives - liability $ 445 Pricing model Pull-through rate 84% Impaired loans - collateral dependent $ 8,784 Third party appraisal Management discount for property type and recent market volatility 0% - 50% (9%) Other real estate owned $ 13,292 Third party appraisal Management discount for property type and recent market volatility 0% - 68% (16%) Fair Value of Financial Assets and Financial Liabilities The following table includes the estimated fair value of the Company's financial assets and financial liabilities (dollars in thousands) . The methodologies for estimating the fair value of financial assets and financial liabilities measured on a recurring and nonrecurring basis are discussed above. The methodologies for estimating the fair value for other financial assets and financial liabilities are discussed below. The Company has determined the estimated fair value amounts using available market information and appropriate valuation methodologies; however, considerable judgment is required to interpret market data in order to develop the estimates of fair value. Accordingly, the estimates presented below are not necessarily indicative of the amounts the Company could realize in a current market exchange. The use of different market assumptions and/or estimation techniques may have a material effect on the estimated fair value amounts at June 30, 2017 and December 31, 2016 . June 30, 2017 December 31, 2016 Fair Value Hierarchy Level Carrying Amount Estimated Fair Value Carrying Amount Estimated Fair Value Assets: Cash and cash equivalents Level 1 $ 137,674 $ 137,674 $ 149,593 $ 149,593 Investment securities available-for-sale Level 2 847,795 847,795 847,178 847,178 Investment securities held-to-maturity Level 2 & 3 63,104 63,729 67,063 67,435 Loans held-for-sale Level 2 48,895 50,630 52,169 53,770 Loans, net Level 2 & 3 2,853,012 2,878,710 2,787,974 2,820,484 Other real estate owned Level 3 2,407 2,880 10,897 13,292 Interest rate swaps and caps Level 2 1,732 1,732 1,793 1,793 Mortgage derivatives Levels 2 & 3 990 990 1,362 1,362 SBA servicing rights Level 3 3,828 3,828 3,477 3,477 Accrued interest receivable Level 2 10,220 10,220 10,210 10,210 Federal Home Loan Bank stock Level 3 7,186 7,186 5,680 5,680 Liabilities: Deposits Level 2 $ 3,452,692 $ 3,452,775 $ 3,431,165 $ 3,430,405 Securities sold under repurchase agreements Level 2 25,256 25,256 27,673 27,673 FHLB borrowings Level 2 80,000 80,000 47,014 47,014 Notes payable Level 2 398 398 398 398 Interest rate swaps and caps Level 2 569 569 726 726 Mortgage derivatives Levels 2 & 3 439 439 459 459 Accrued interest payable Level 2 1,081 1,081 2,312 2,312 Cash and Cash Equivalents The carrying amount approximates fair value because of the short maturity of these instruments. Investment Securities Held-to-Maturity Fair values are determined using quoted market prices or dealer quotes in the same manner as investment securities available-for-sale. Organic and Purchased Non-Credit Impaired Loans Fair values are estimated for portfolios of loans with similar financial characteristics. Loans are segregated by type. The fair value of performing loans is calculated by discounting scheduled cash flows through the estimated maturities using estimated market discount rates that reflect observable market information incorporating the credit, liquidity, yield, and other risks inherent in the loan. The estimate of maturity is based on the Company's historical experience with repayments for each loan classification, modified, as required, by an estimate of the effect of the current economic and lending conditions. Purchased Credit Impaired Loans Purchased credit impaired loans are recorded at fair value at the date of acquisition. The fair values of loans with evidence of credit deterioration are recorded net of a nonaccretable discount and an accretable discount. Subsequent decreases to the expected cash flows will generally result in a provision for loan and lease losses. Subsequent increases to the expected cash flows results in a reversal of the provision for loan and lease losses to the extent of prior changes or a reclassification of the difference from the nonaccretable to accretable discount with a positive impact on the accretable discount. Accrued Interest Receivable and Accrued Interest Payable The carrying amounts are a reasonable estimate of fair values. Federal Home Loan Bank Stock Federal Home Loan Bank stock, classified as a restricted equity security, is considered a Level 3 asset as little or no market activity exists for the security; therefore, the security's value is not market observable and is carried at original cost basis as cost approximates fair value. Deposits The fair value of deposits with no stated maturity, such as noninterest-bearing demand deposits, interest-bearing deposits, and savings and money market deposits, is equal to the amount payable on demand. The fair value of time deposits is estimated by discounting the expected life. The discount rate is estimated using the rates currently offered for deposits of similar remaining maturities. Federal Funds Purchased and Securities Sold Under Repurchase Agreements The fair value of federal funds purchased and securities sold under agreements to repurchase approximates the carrying amount because of the short maturity of these borrowings. FHLB Borrowings The carrying amount approximates fair value because of the short maturity of these instruments. Notes Payable Notes payable are variable rate subordinated debt for which performance is based on the underlying notes receivable. Interest rates adjust according to market value; therefore, the carrying amount approximates fair value.

Earnings Per Share

Earnings Per Share	6 Months Ended
	Jun. 30, 2017
Earnings Per Share [Abstract]
Earnings Per Share	NOTE 14: EARNINGS PER SHARE The Company has granted stock compensation awards with nonforfeitable dividend rights which are considered participating securities. As such, earnings per share is calculated using the two-class method. Basic earnings per share is calculated by dividing net income allocated to common shareholders by the weighted average number of common shares outstanding during the period which excludes the participating securities. Diluted earnings per share includes the dilutive effect of additional potential common shares from stock compensation awards and warrants. There were no anti-dilutive securities excluded from the computation of earnings per share in the periods presented. Earnings per share have been computed based on the following weighted average number of common shares outstanding (dollars in thousands, except per share data) : Three Months Ended Six Months Ended June 30 June 30 2017 2016 2017 2016 Numerator: Net income per consolidated statements of income $ 15,203 $ 13,985 $ 26,761 $ 24,823 Net income allocated to participating securities (413 ) (408 ) (706 ) (673 ) Net income allocated to common stock $ 14,790 $ 13,577 $ 26,055 $ 24,150 Basic earnings per share computation: Net income allocated to common stock $ 14,790 $ 13,577 $ 26,055 $ 24,150 Weighted average common shares outstanding, including shares considered participating securities 38,955,513 36,899,198 38,908,102 36,982,312 Less: Average participating securities (1,059,388 ) (1,076,544 ) (1,026,103 ) (1,002,876 ) Weighted average shares 37,896,125 35,822,654 37,881,999 35,979,436 Basic earnings per share $ .39 $ .38 $ .69 $ .67 Diluted earnings per share computation: Net income allocated to common stock $ 14,790 $ 13,577 $ 26,055 $ 24,150 Weighted average common shares outstanding for basic earnings per share 37,896,125 35,822,654 37,881,999 35,979,436 Weighted average dilutive grants 46,358 101,037 52,188 98,384 Weighted average shares and dilutive potential common shares 37,942,483 35,923,691 37,934,187 36,077,820 Diluted earnings per share $ .39 $ .38 $ .69 $ .67

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income	6 Months Ended
	Jun. 30, 2017
Equity [Abstract]
Accumulated Other Comprehensive Income	NOTE 15: ACCUMULATED OTHER COMPREHENSIVE INCOME Accumulated other comprehensive income, or AOCI, is reported as a component of shareholders' equity. AOCI can include, among other items, unrealized holding gains and losses on investment securities available-for-sale, unrealized gains and losses on investment securities available-for-sale transferred to held-to-maturity, and gains and losses on derivative instruments that are designated as, and qualify as, cash flow hedges. Unrealized holding gains and losses on securities transferred to held-to-maturity are amortized over the estimated remaining life of the security as an adjustment to yield, offsetting the related amortization/accretion of the net premium/discount created in the transfer. The components of AOCI are reported net of related tax effects. The components of AOCI and changes in those components for the periods presented are as follows (dollars in thousands) : Investment Securities Available-for-Sale Held-to-Maturity Securities Transferred from Available-For-Sale Cash Flow Hedges (Effective Portion) Total Three Months Ended June 30, 2017 Balance, beginning of period $ (1,568 ) $ (177 ) $ (802 ) $ (2,547 ) Other comprehensive loss before income taxes: Net change in unrealized gains 1,089 — 21 1,110 Amounts reclassified for net (gains) losses realized and included in earnings (13 ) — 430 417 Amortization of net unrealized losses on securities transferred to held-to-maturity — 46 — 46 Income tax expense 413 — 172 585 Balance, end of period $ (905 ) $ (131 ) $ (523 ) $ (1,559 ) June 30, 2016 Balance, beginning of period $ 3,294 $ (171 ) $ (1,646 ) $ 1,477 Other comprehensive income (loss) before income taxes: Net change in unrealized gains (losses) 3,759 — (238 ) 3,521 Amounts reclassified for net (gains) losses realized and included in earnings (396 ) — 266 (130 ) Amortization of unrealized gain on securities transferred to-held-to-maturity — (2 ) — (2 ) Income tax expense 1,301 — 11 1,312 Balance, end of period $ 5,356 $ (173 ) $ (1,629 ) $ 3,554 Six Months Ended June 30, 2017 Balance, beginning of period $ (1,200 ) $ (175 ) $ (1,082 ) $ (2,457 ) Other comprehensive loss before income taxes: Net change in unrealized gains 514 — 80 594 Amounts reclassified for net (gains) losses realized and included in earnings (25 ) — 834 809 Amortization of net unrealized losses on securities transferred to-held-to-maturity — 44 — 44 Income tax expense 194 — 355 549 Balance, end of period $ (905 ) $ (131 ) $ (523 ) $ (1,559 ) Investment Securities Available-for-Sale Held-to-Maturity Securities Transferred from Available-For-Sale Cash Flow Hedges (Effective Portion) Total June 30, 2016 Balance, beginning of period $ (272 ) $ — $ (1,362 ) $ (1,634 ) Other comprehensive income (loss) before income taxes: Net change in unrealized gains (losses) 9,415 — (920 ) 8,495 Amounts reclassified for net (gains) losses realized and included in earnings (409 ) — 484 75 Transfer of net unrealized loss from available-for-sale to held-to-maturity 172 (172 ) — — Amortization of net unrealized losses on securities transferred to-held-to-maturity — (1 ) — (1 ) Income tax expense (benefit) 3,550 — (169 ) 3,381 Balance, end of period $ 5,356 $ (173 ) $ (1,629 ) $ 3,554 Reclassifications from AOCI into income for the periods presented are as follows (dollars in thousands) : Three Months Ended Six Months Ended June 30 June 30 Reclassifications from AOCI into income and affected line items on Consolidated Statements of Income 2017 2016 2017 2016 Investment securities available-for-sale Gain on sale of investment securities $ 13 $ 396 $ 25 $ 409 Income tax expense (5 ) (153 ) (10 ) (158 ) Net income $ 8 $ 243 $ 15 $ 251 Cash flow hedges (effective portion) Interest expense on deposits $ (430 ) $ (266 ) $ (834 ) $ (484 ) Income tax benefit 165 103 320 187 Net income $ (265 ) $ (163 ) $ (514 ) $ (297 )

Acquisitions (Tables)

Acquisitions (Tables)	6 Months Ended
	Jun. 30, 2017
Business Combinations [Abstract]
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed	The following table summarizes the assets acquired and liabilities assumed and the consideration paid by the Company at the acquisition date (dollars in thousands) : As Recorded by NBG Bancorp, Inc. Fair Value Adjustments As Recorded by the Company Assets Cash and cash equivalents $ 38,146 $ (31,158 ) (a) $ 6,988 Investment securities available-for-sale 5,974 (40 ) (b) 5,934 Loans, net 348,641 (3,645 ) (c) 344,996 Loans held-for-sale 694 — 694 Other real estate owned 69 (5 ) (d) 64 Core deposit intangible — 3,740 (e) 3,740 Premises and equipment, net 7,943 (635 ) (f) 7,308 Bank-owned life insurance 1,499 — 1,499 Other assets 6,542 276 (g) 6,818 Total assets acquired $ 409,508 $ (31,467 ) $ 378,041 Liabilities Deposits: Noninterest-bearing $ 58,161 $ — $ 58,161 Interest-bearing 261,034 (30,711 ) (h) 230,323 Total deposits 319,195 (30,711 ) 288,484 FHLB advances 46,354 (140 ) (i) 46,214 Other liabilities 2,067 — 2,067 Total liabilities assumed 367,616 (30,851 ) 336,765 Net identifiable assets acquired over liabilities assumed $ 41,892 $ (616 ) $ 41,276 Goodwill $ — $ 36,587 $ 36,587 Net assets acquired over liabilities assumed $ 41,892 $ 35,971 $ 77,863 Consideration: State Bank Financial Corporation common shares issued 1,626,648 Purchase price per share of the Company's common stock $ 26.86 Company common stock issued 43,692 Cash exchanged for shares 34,171 Fair value of total consideration transferred $ 77,863 Explanation of fair value adjustments (a) Adjustment reflects the elimination of a deposit account The National Bank of Georgia held with State Bank. (b) Adjustment reflects the loss on certain securities that were sold immediately following the closing that was deemed to be a more accurate representation of fair value. (c) Adjustment reflects the fair value adjustment based on State Bank's third party valuation report and includes the adjustment to eliminate the recorded allowance for loan and lease losses. (d) Adjustment reflects the fair value adjustment based on State Bank's evaluation of the acquired other real estate owned portfolio. (e) Adjustment reflects the fair value adjustment to record the estimated core deposit intangible based on State Bank's third party valuation report. (f) Adjustment reflects the fair value adjustment based on appraised values. (g) Adjustment reflects the fair value adjustment based on State Bank's evaluation of acquired other assets. (h) Adjustment reflects the elimination of a deposit account The National Bank of Georgia held with State Bank and the fair value adjustment based on State Bank's third party valuation report. (i) Adjustment arises since the rates on acquired FHLB advances were lower than the rates available on similar borrowings. Subsequent to the NBG Bancorp acquisition all FHLB advances were paid off. The following table summarizes the assets acquired and liabilities assumed and the consideration paid by the Company at the acquisition date (dollars in thousands) : As Recorded by S Bankshares Inc. Fair Value Adjustments As Recorded by the Company Assets Cash and cash equivalents $ 954 $ — $ 954 Investment securities available-for-sale 13,814 (88 ) (a) 13,726 Loans, net 81,383 (2,344 ) (b) 79,039 Other real estate owned 1,278 (332 ) (c) 946 Core deposit intangible — 1,010 (d) 1,010 Premises and equipment, net 3,132 420 (e) 3,552 Bank-owned life insurance 3,124 — 3,124 Other assets 2,636 1,130 (f) 3,766 Total assets acquired $ 106,321 $ (204 ) $ 106,117 Liabilities Deposits: Noninterest-bearing $ 16,620 $ — $ 16,620 Interest-bearing 76,664 494 (g) 77,158 Total deposits 93,284 494 93,778 Federal funds purchased and securities sold under repurchase agreements 1,951 — 1,951 FHLB advances 800 — 800 Other liabilities 1,104 — 1,104 Total liabilities assumed 97,139 494 97,633 Net identifiable assets acquired over liabilities assumed $ 9,182 $ (698 ) $ 8,484 Goodwill $ — $ 4,140 $ 4,140 Net assets acquired over liabilities assumed $ 9,182 $ 3,442 $ 12,624 Consideration: State Bank Financial Corporation common shares issued 310,596 Purchase price per share of the Company's common stock $ 26.86 Company common stock issued 8,343 Cash exchanged for shares 4,281 Fair value of total consideration transferred $ 12,624 Explanation of fair value adjustments (a) Adjustment reflects the loss on certain securities that were sold immediately following the closing that was deemed to be a more accurate representation of fair value. (b) Adjustment reflects the fair value adjustment based on State Bank's third party valuation report and includes the adjustment to eliminate the recorded allowance for loan and lease losses. (c) Adjustment reflects the fair value adjustment based on State Bank's evaluation of the acquired other real estate owned portfolio. (d) Adjustment reflects the fair value adjustment to record the estimated core deposit intangible based on State Bank's third party valuation report. (e) Adjustment reflects the fair value adjustment based on appraised values. (f) Adjustment reflects the fair value adjustment based on State Bank's evaluation of acquired other assets. (g) Adjustment reflects the fair value adjustment based on State Bank's third party valuation report.
Business Acquisition, Pro Forma Information	The following table presents certain pro forma information as if S Bankshares had been acquired on January 1, 2016 (dollars in thousands, except per share amounts) . These results combine the historical results of S Bankshares in the Company's consolidated statements of income and, while certain adjustments were made for the estimated impact of certain fair value adjustments and other acquisition-related activity, they are not indicative of what would have occurred had the acquisition taken place on January 1, 2016. Merger-related costs are not included in the pro forma statements below. Six Months Ended June 30 2016 Pro Forma Net interest income $ 81,301 Net income 24,961 Earnings per share: Basic $ .67 Diluted .67 The following table presents certain pro forma information as if NBG Bancorp had been acquired on January 1, 2016 (dollars in thousands, except per share amounts) . These results combine the historical results of NBG Bancorp in the Company's consolidated statements of income and, while certain adjustments were made for the estimated impact of certain fair value adjustments and other acquisition-related activity, they are not indicative of what would have occurred had the acquisition taken place on January 1, 2016. Merger-related costs are not included in the pro forma statements below. Six Months Ended June 30 2016 Pro Forma Net interest income $ 87,137 Net income 27,738 Earnings per share: Basic $ .72 Diluted .72
Business Acquisition, Purchased Credit Impaired Loans Acquired	The following is a summary of the purchased credit impaired loans acquired in the S Bankshares transaction on December 31, 2016 (dollars in thousands) : Purchased Credit Impaired Loans Contractually required principal and interest at acquisition $ 15,966 Contractual cash flows not expected to be collected (nonaccretable difference) (2,805 ) Expected cash flows at acquisition 13,161 Accretable difference (1,377 ) Basis in acquired loans at acquisition - estimated fair value $ 11,784 The following is a summary of the purchased credit impaired loans acquired in the NBG Bancorp transaction on December 31, 2016 (dollars in thousands) : Purchased Credit Impaired Loans Contractually required principal and interest at acquisition $ 33,584 Contractual cash flows not expected to be collected (nonaccretable difference) (3,736 ) Expected cash flows at acquisition 29,848 Accretable difference (2,799 ) Basis in acquired loans at acquisition - estimated fair value $ 27,049

Investment Securities (Tables)

Investment Securities (Tables)	6 Months Ended
	Jun. 30, 2017
Investments, Debt and Equity Securities [Abstract]
Investment Securities Available-for-Sale	The amortized cost and fair value of securities classified as available-for-sale are as follows (dollars in thousands) : June 30, 2017 December 31, 2016 Investment Securities Available-for-Sale Amortized Cost Unrealized Gains Unrealized Losses Fair Value Amortized Cost Unrealized Gains Unrealized Losses Fair Value U.S. Government securities $ 84,546 $ 17 $ 334 $ 84,229 $ 89,044 $ 70 $ 465 $ 88,649 States and political subdivisions 300 1 — 301 300 1 — 301 Residential mortgage-backed securities — nonagency 132,493 2,924 280 135,137 151,519 3,129 639 154,009 Residential mortgage-backed securities — agency 517,796 437 5,179 513,054 533,479 548 4,725 529,302 Corporate securities 114,128 1,020 74 115,074 74,793 207 83 74,917 Total investment securities available-for-sale $ 849,263 $ 4,399 $ 5,867 $ 847,795 $ 849,135 $ 3,955 $ 5,912 $ 847,178
Held-to-maturity Securities	The amortized cost and fair value of securities classified as held-to-maturity are as follows (dollars in thousands) : June 30, 2017 December 31, 2016 Investment Securities Held-to-Maturity Amortized Cost Unrealized Gains Unrealized Losses Fair Value Amortized Cost Unrealized Gains Unrealized Losses Fair Value Asset-backed securities $ 52,894 $ 435 $ — $ 53,329 $ 56,804 $ 295 $ 14 $ 57,085 Corporate securities 10,210 190 — 10,400 10,259 91 — 10,350 Total investment securities held-to-maturity $ 63,104 $ 625 $ — $ 63,729 $ 67,063 $ 386 $ 14 $ 67,435
Contractual Maturities of Available-for-Sale Securities	The amortized cost and estimated fair value of debt securities by contractual maturities are summarized in the tables below (dollars in thousands) : Debt Securities Available-for-Sale Distribution of Maturities (1) June 30, 2017 1 Year or Less 1-5 Years 5-10 Years After 10 Years Total Amortized Cost: U.S. Government securities $ 2,492 $ 82,054 $ — $ — $ 84,546 States and political subdivisions — 300 — — 300 Residential mortgage-backed securities — nonagency — — — 132,493 132,493 Residential mortgage-backed securities — agency — 15,699 280,991 221,106 517,796 Corporate securities 13,296 84,949 13,999 1,884 114,128 Total debt securities available-for-sale $ 15,788 $ 183,002 $ 294,990 $ 355,483 $ 849,263 Fair Value: U.S. Government securities $ 2,493 $ 81,736 $ — $ — $ 84,229 States and political subdivisions — 301 — — 301 Residential mortgage-backed securities — nonagency — — — 135,137 135,137 Residential mortgage-backed securities — agency — 15,676 278,468 218,910 513,054 Corporate securities 13,297 85,308 14,375 2,094 115,074 Total debt securities available-for-sale $ 15,790 $ 183,021 $ 292,843 $ 356,141 $ 847,795 Debt Securities Held-to-Maturity Distribution of Maturities (1) June 30, 2017 1 Year or Less 1-5 Years 5-10 Years After 10 Years Total Amortized Cost: Asset-backed securities $ — $ — $ 37,394 $ 15,500 $ 52,894 Corporate securities — — 10,210 — 10,210 Total debt securities held-to-maturity $ — $ — $ 47,604 $ 15,500 $ 63,104 Fair Value: Asset-backed securities $ — $ — $ 37,777 $ 15,552 $ 53,329 Corporate securities — — 10,400 — 10,400 Total debt securities held-to-maturity $ — $ — $ 48,177 $ 15,552 $ 63,729 (1) Actual cash flows may differ from contractual maturities as borrowers may prepay obligations without prepayment penalties.
Unrealized Losses on Investment Securities	The following tables provide information regarding securities with unrealized losses (dollars in thousands) : Less than 12 Months 12 Months or More Total Investment Securities Available-for-Sale Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses June 30, 2017 U.S. Government securities $ 61,849 $ 334 $ — $ — $ 61,849 $ 334 States and political subdivisions — — — — — — Residential mortgage-backed securities — nonagency 9,495 25 22,052 255 31,547 280 Residential mortgage-backed securities — agency 422,418 5,038 8,940 141 431,358 5,179 Corporate securities 26,483 74 — — 26,483 74 Total temporarily impaired securities $ 520,245 $ 5,471 $ 30,992 $ 396 $ 551,237 $ 5,867 December 31, 2016 U.S. Government securities $ 43,958 $ 465 $ — $ — $ 43,958 $ 465 States and political subdivisions — — — — — — Residential mortgage-backed securities — nonagency 29,403 239 23,991 400 53,394 639 Residential mortgage-backed securities — agency 430,490 4,484 18,795 241 449,285 4,725 Corporate securities 22,944 83 — — 22,944 83 Total temporarily impaired securities $ 526,795 $ 5,271 $ 42,786 $ 641 $ 569,581 $ 5,912 Less than 12 Months 12 Months or More Total Investment Securities Held-to-Maturity Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses December 31, 2016 Asset-backed securities $ 6,486 $ 14 $ — $ — $ 6,486 $ 14 Total temporarily impaired securities $ 6,486 $ 14 $ — $ — $ 6,486 $ 14
Schedule of Proceeds from Sales and Redemptions of Available for Sale Securities	Sales and calls of securities are summarized in the following table for the periods presented (dollars in thousands) : Three Months Ended Six Months Ended June 30 June 30 Securities Available-For-Sale 2017 2016 2017 2016 Proceeds from sales and calls $ 21,942 $ 41,979 $ 64,778 $ 64,879 Gross gains on sales and calls $ 89 $ 396 $ 118 $ 409 Gross losses on sales and calls (76 ) — (93 ) — Net realized gains on sales and calls $ 13 $ 396 $ 25 $ 409

Loans (Tables)

Loans (Tables)	6 Months Ended
	Jun. 30, 2017
Receivables [Abstract]
Schedule of Loans	Loans, in total, are summarized as follows (dollars in thousands) : Total Loans June 30, 2017 December 31, 2016 Construction, land & land development $ 461,497 $ 567,763 Other commercial real estate 1,178,754 1,025,063 Total commercial real estate 1,640,251 1,592,826 Residential real estate 330,717 343,398 Owner-occupied real estate 382,337 395,863 Commercial, financial & agricultural 390,900 368,120 Leases 73,103 71,724 Consumer 63,692 42,641 Total loans 2,881,000 2,814,572 Allowance for loan and lease losses (27,988 ) (26,598 ) Total loans, net $ 2,853,012 $ 2,787,974 Organic loans, net of related discounts, are summarized as follows (dollars in thousands) : Organic Loans June 30, 2017 December 31, 2016 Construction, land & land development $ 413,557 $ 500,018 Other commercial real estate 960,762 754,790 Total commercial real estate 1,374,319 1,254,808 Residential real estate 167,755 144,295 Owner-occupied real estate 244,637 256,317 Commercial, financial & agricultural 355,629 327,381 Leases 73,103 71,724 Consumer 60,028 36,039 Total organic loans (1) 2,275,471 2,090,564 Allowance for loan and lease losses (22,560 ) (21,086 ) Total organic loans, net $ 2,252,911 $ 2,069,478 (1) Includes net deferred loan fees that totaled approximately $9.4 million and $7.0 million at June 30, 2017 and December 31, 2016 , respectively. Purchased non-credit impaired loans ("PNCI loans"), net of related discounts, are summarized as follows (dollars in thousands) : Purchased Non-Credit Impaired Loans June 30, 2017 December 31, 2016 Construction, land & land development $ 31,083 $ 51,208 Other commercial real estate 171,914 209,531 Total commercial real estate 202,997 260,739 Residential real estate 117,449 144,596 Owner-occupied real estate 114,438 115,566 Commercial, financial & agricultural 31,654 36,206 Consumer 3,393 6,255 Total purchased non-credit impaired loans (1) 469,931 563,362 Allowance for loan and lease losses (667 ) (439 ) Total purchased non-credit impaired loans, net $ 469,264 $ 562,923 (1) Includes net discounts that totaled approximately $6.8 million and $10.5 million at June 30, 2017 and December 31, 2016 , respectively. Purchased credit impaired loans ("PCI loans"), net of related discounts, are summarized as follows (dollars in thousands) : Purchased Credit Impaired Loans June 30, 2017 December 31, 2016 Construction, land & land development $ 16,857 $ 16,537 Other commercial real estate 46,078 60,742 Total commercial real estate 62,935 77,279 Residential real estate 45,513 54,507 Owner-occupied real estate 23,262 23,980 Commercial, financial & agricultural 3,617 4,533 Consumer 271 347 Total purchased credit impaired loans 135,598 160,646 Allowance for loan and lease losses (4,761 ) (5,073 ) Total purchased credit impaired loans, net $ 130,837 $ 155,573
Schedule of Purchased Credit Impaired Loans Rollforward	Changes in the carrying value of purchased credit impaired loans are presented in the following table for the periods presented (dollars in thousands) : Three Months Ended Six Months Ended June 30 June 30 Purchased Credit Impaired Loans 2017 2016 2017 2016 Balance, beginning of period $ 149,560 $ 132,242 $ 155,573 $ 137,777 Accretion of fair value discounts 9,228 13,961 16,905 23,704 Fair value of acquired loans — — — 1,300 Reductions in principal balances resulting from repayments, write-offs and foreclosures (27,790 ) (19,223 ) (41,953 ) (36,046 ) Change in the allowance for loan and lease losses on purchased credit impaired loans (161 ) 2,120 312 2,365 Balance, end of period $ 130,837 $ 129,100 $ 130,837 $ 129,100
Schedule of Changes in Accretable Discount	Changes in the value of the accretable discount are presented in the following table for the periods presented (dollars in thousands) : Three Months Ended Six Months Ended June 30 June 30 Changes in Accretable Discount 2017 2016 2017 2016 Balance, beginning of period $ 63,066 $ 85,828 $ 69,301 $ 86,100 Additions from acquisitions — — — 1,648 Accretion (9,228 ) (13,961 ) (16,905 ) (23,704 ) Transfers to accretable discounts and exit events, net 5,970 3,523 7,412 11,346 Balance, end of period $ 59,808 $ 75,390 $ 59,808 $ 75,390

Allowance for Loan and Lease 27

Allowance for Loan and Lease Losses (ALLL) (Tables)	6 Months Ended
	Jun. 30, 2017
Receivables [Abstract]
Schedule of Allowance for Loan and Lease Losses	The following tables summarize the Company's allowance for loan and lease losses for the periods indicated (dollars in thousands) : Three Months Ended June 30 2017 2016 Organic Loans Purchased Non-Credit Impaired Loans Purchased Credit Impaired Loans Total Organic Loans Purchased Non-Credit Impaired Loans Purchased Credit Impaired Loans Total Balance, beginning of period $ 21,885 $ 491 $ 4,600 $ 26,976 $ 22,626 $ 166 $ 7,553 $ 30,345 Charge-offs (536 ) (197 ) (214 ) (947 ) (2,307 ) (1 ) (606 ) (2,914 ) Recoveries 113 1 — 114 54 28 80 162 Net (charge-offs) recoveries (423 ) (196 ) (214 ) (833 ) (2,253 ) 27 (526 ) (2,752 ) Provision for loan and lease losses 1,098 372 375 1,845 1,635 (35 ) (1,594 ) 6 Balance, end of period $ 22,560 $ 667 $ 4,761 $ 27,988 $ 22,008 $ 158 $ 5,433 $ 27,599 Six Months Ended June 30 2017 2016 Organic Loans Purchased Non-Credit Impaired Loans Purchased Credit Impaired Loans Total Organic Loans Purchased Non-Credit Impaired Loans Purchased Credit Impaired Loans Total Balance, beginning of period $ 21,086 $ 439 $ 5,073 $ 26,598 $ 21,224 $ 53 $ 7,798 $ 29,075 Charge-offs (1,076 ) (245 ) (328 ) (1,649 ) (2,547 ) (64 ) (2,122 ) (4,733 ) Recoveries 190 2 — 192 150 61 3,174 3,385 Net recoveries (charge-offs) (886 ) (243 ) (328 ) (1,457 ) (2,397 ) (3 ) 1,052 (1,348 ) Provision for loan and lease losses 2,360 471 16 2,847 3,181 108 (3,417 ) (128 ) Balance, end of period $ 22,560 $ 667 $ 4,761 $ 27,988 $ 22,008 $ 158 $ 5,433 $ 27,599
Schedule of Allowance for Loan and Lease Losses, Organic and Purchased Credit Impaired Loans	Activity in the allowance for loan and lease losses on organic loans is detailed as follows by portfolio segment for the periods indicated (dollars in thousands) : Organic Loans Commercial Real Estate Residential Real Estate Owner-Occupied Real Estate Commercial, Financial & Agricultural Leases Consumer Total Three Months Ended June 30, 2017 Beginning balance $ 12,112 $ 1,666 $ 2,108 $ 4,514 $ 710 $ 775 $ 21,885 Charge-offs (187 ) (25 ) — (82 ) (135 ) (107 ) (536 ) Recoveries — 3 — 22 68 20 113 Provision 1,412 197 (72 ) (791 ) 182 170 1,098 Ending balance $ 13,337 $ 1,841 $ 2,036 $ 3,663 $ 825 $ 858 $ 22,560 Six Months Ended June 30, 2017 Beginning balance $ 11,767 $ 1,786 $ 2,239 $ 4,093 $ 655 $ 546 $ 21,086 Charge-offs (187 ) (48 ) — (142 ) (499 ) (200 ) (1,076 ) Recoveries — 6 — 51 109 24 190 Provision 1,757 97 (203 ) (339 ) 560 488 2,360 Ending balance $ 13,337 $ 1,841 $ 2,036 $ 3,663 $ 825 $ 858 $ 22,560 Three Months Ended June 30, 2016 Beginning balance $ 14,292 $ 1,967 $ 1,931 $ 2,918 $ 1,045 $ 473 $ 22,626 Charge-offs (2,125 ) — — (77 ) (105 ) — (2,307 ) Recoveries — 2 44 — 7 1 54 Provision 776 (79 ) 7 993 (66 ) 4 1,635 Ending balance $ 12,943 $ 1,890 $ 1,982 $ 3,834 $ 881 $ 478 $ 22,008 Six Months Ended June 30, 2016 Beginning balance $ 13,607 $ 2,053 $ 1,920 $ 2,509 $ 865 $ 270 $ 21,224 Charge-offs (2,125 ) (28 ) — (164 ) (215 ) (15 ) (2,547 ) Recoveries — 3 44 95 7 1 150 Provision 1,461 (138 ) 18 1,394 224 222 3,181 Ending balance $ 12,943 $ 1,890 $ 1,982 $ 3,834 $ 881 $ 478 $ 22,008 The following table presents the balance of organic loans and the allowance for loan and lease losses based on the method of determining the allowance at the dates indicated (dollars in thousands) : Allowance for Loan and Lease Losses Loans Organic Loans Individually Evaluated for Impairment Collectively Evaluated for Impairment Total Allowance Individually Evaluated for Impairment Collectively Evaluated for Impairment Total Loans June 30, 2017 Commercial real estate $ 107 $ 13,230 $ 13,337 $ 215 $ 1,374,104 $ 1,374,319 Residential real estate 327 1,514 1,841 654 167,101 167,755 Owner-occupied real estate — 2,036 2,036 — 244,637 244,637 Commercial, financial & agricultural 93 3,570 3,663 515 355,114 355,629 Leases — 825 825 — 73,103 73,103 Consumer 19 839 858 38 59,990 60,028 Total organic loans $ 546 $ 22,014 $ 22,560 $ 1,422 $ 2,274,049 $ 2,275,471 December 31, 2016 Commercial real estate $ 201 $ 11,566 $ 11,767 $ 5,057 $ 1,249,751 $ 1,254,808 Residential real estate 413 1,373 1,786 825 143,470 144,295 Owner-occupied real estate — 2,239 2,239 — 256,317 256,317 Commercial, financial & agricultural 146 3,947 4,093 298 327,083 327,381 Leases — 655 655 — 71,724 71,724 Consumer 27 519 546 54 35,985 36,039 Total organic loans $ 787 $ 20,299 $ 21,086 $ 6,234 $ 2,084,330 $ 2,090,564 Activity in the allowance for loan and lease losses on purchased non-credit impaired loans is detailed as follows by portfolio segment for the periods indicated (dollars in thousands) : Purchased Non-Credit Impaired Loans Commercial Real Estate Residential Real Estate Owner-Occupied Real Estate Commercial, Financial & Agricultural Consumer Total Three Months Ended June 30, 2017 Beginning balance $ 239 $ 175 $ 76 $ — $ 1 $ 491 Charge-offs — — (80 ) (115 ) (2 ) (197 ) Recoveries — — — — 1 1 Provision (94 ) 167 156 141 2 372 Ending balance $ 145 $ 342 $ 152 $ 26 $ 2 $ 667 Six Months Ended June 30, 2017 Beginning balance $ 88 $ 72 $ 44 $ 235 $ — $ 439 Charge-offs — — (80 ) (160 ) (5 ) (245 ) Recoveries — — — — 2 2 Provision 57 270 188 (49 ) 5 471 Ending balance $ 145 $ 342 $ 152 $ 26 $ 2 $ 667 Three Months Ended June 30, 2016 Beginning balance $ — $ — $ — $ 166 $ — $ 166 Charge-offs — — — (1 ) — (1 ) Recoveries — 28 — — — 28 Provision — (28 ) — (7 ) — (35 ) Ending balance $ — $ — $ — $ 158 $ — $ 158 Six Months Ended June 30, 2016 Beginning balance $ — $ 53 $ — $ — $ — $ 53 Charge-offs — (62 ) — (1 ) (1 ) (64 ) Recoveries — 44 — — 17 61 Provision — (35 ) — 159 (16 ) 108 Ending balance $ — $ — $ — $ 158 $ — $ 158 The following table presents the balance of purchased non-credit impaired loans and the allowance for loan and lease losses based on the method of determining the allowance at the dates indicated (dollars in thousands) : Allowance for Loan and Lease Losses Loans Purchased Non-Credit Impaired Loans Individually Evaluated for Impairment Collectively Evaluated for Impairment Total Allowance Individually Evaluated for Impairment Collectively Evaluated for Impairment Total Loans June 30, 2017 Commercial real estate $ — $ 145 $ 145 $ 49 $ 202,948 $ 202,997 Residential real estate — 342 342 359 117,090 117,449 Owner-occupied real estate — 152 152 2,752 111,686 114,438 Commercial, financial & agricultural 26 — 26 2,005 29,649 31,654 Consumer — 2 2 12 3,381 3,393 Total purchased non-credit impaired loans $ 26 $ 641 $ 667 $ 5,177 $ 464,754 $ 469,931 December 31, 2016 Commercial real estate $ — $ 88 $ 88 $ 56 $ 260,683 $ 260,739 Residential real estate — 72 72 320 144,276 144,596 Owner-occupied real estate 44 — 44 1,875 113,691 115,566 Commercial, financial & agricultural — 235 235 1,128 35,078 36,206 Consumer — — — 2 6,253 6,255 Total purchased non-credit impaired loans $ 44 $ 395 $ 439 $ 3,381 $ 559,981 $ 563,362 Activity in the allowance for loan and lease losses on purchased credit impaired loans is detailed as follows by portfolio segment for the periods indicated (dollars in thousands) : Purchased Credit Impaired Loans Commercial Real Estate Residential Real Estate Owner-Occupied Real Estate Commercial, Financial & Agricultural Consumer Total Three Months Ended June 30, 2017 Beginning balance $ 2,073 $ 959 $ 1,531 $ 37 $ — $ 4,600 Charge-offs (160 ) (38 ) — (15 ) (1 ) (214 ) Recoveries — — — — — — Provision 218 47 80 15 15 375 Ending balance $ 2,131 $ 968 $ 1,611 $ 37 $ 14 $ 4,761 Six Months Ended June 30, 2017 Beginning balance $ 2,183 $ 1,196 $ 1,655 $ 38 $ 1 $ 5,073 Charge-offs (233 ) (42 ) (36 ) (16 ) (1 ) (328 ) Recoveries — — — — — — Provision 181 (186 ) (8 ) 15 14 16 Ending balance $ 2,131 $ 968 $ 1,611 $ 37 $ 14 $ 4,761 Three Months Ended June 30, 2016 Beginning balance $ 3,430 $ 1,643 $ 2,422 $ 50 $ 8 $ 7,553 Charge-offs (225 ) (377 ) — — (4 ) (606 ) Recoveries 72 6 — 2 — 80 Provision (443 ) (247 ) (920 ) 17 (1 ) (1,594 ) Ending balance $ 2,834 $ 1,025 $ 1,502 $ 69 $ 3 $ 5,433 Six Months Ended June 30, 2016 Beginning balance $ 3,388 $ 1,893 $ 2,449 $ 60 $ 8 $ 7,798 Charge-offs (733 ) (894 ) (211 ) (228 ) (56 ) (2,122 ) Recoveries 2,281 400 207 233 53 3,174 Provision (2,102 ) (374 ) (943 ) 4 (2 ) (3,417 ) Ending balance $ 2,834 $ 1,025 $ 1,502 $ 69 $ 3 $ 5,433 The following table presents the balance of purchased credit impaired loans and the allowance for loan and lease losses based on the method of determining the allowance at the dates indicated (dollars in thousands) : Allowance for Loan and Lease Losses Loans Purchased Credit Impaired Loans Individually Evaluated for Impairment Collectively Evaluated for Impairment Total Allowance Individually Evaluated for Impairment Collectively Evaluated for Impairment Total Loans June 30, 2017 Commercial real estate $ 807 $ 1,324 $ 2,131 $ 20,082 $ 42,853 $ 62,935 Residential real estate 135 833 968 1,864 43,649 45,513 Owner-occupied real estate 1,357 254 1,611 8,509 14,753 23,262 Commercial, financial & agricultural 6 31 37 69 3,548 3,617 Consumer — 14 14 2 269 271 Total purchased credit impaired loans $ 2,305 $ 2,456 $ 4,761 $ 30,526 $ 105,072 $ 135,598 December 31, 2016 Commercial real estate $ 760 $ 1,423 $ 2,183 $ 29,387 $ 47,892 $ 77,279 Residential real estate 156 1,040 1,196 1,897 52,610 54,507 Owner-occupied real estate 1,471 184 1,655 8,376 15,604 23,980 Commercial, financial & agricultural 2 36 38 86 4,447 4,533 Consumer — 1 1 8 339 347 Total purchased credit impaired loans $ 2,389 $ 2,684 $ 5,073 $ 39,754 $ 120,892 $ 160,646
Impaired Loans, Organic and Purchased Non-Credit Impaired	Impaired loans, segregated by class of loans, are presented in the following table (dollars in thousands) : June 30, 2017 December 31, 2016 Unpaid Principal Balance Recorded Investment Related Allowance Unpaid Principal Balance Recorded Investment Related Allowance Impaired Loans (1) With no related allowance recorded: Construction, land & land development $ — $ — $ — $ 4,565 $ 2,933 $ — Other commercial real estate 49 49 — 56 56 — Total commercial real estate 49 49 — 4,621 2,989 — Residential real estate 368 359 — 388 320 — Owner-occupied real estate 2,865 2,752 — 193 188 — Commercial, financial & agricultural 2,053 1,607 — 1,335 1,128 — Consumer 20 12 — 2 2 — Subtotal 5,355 4,779 — 6,539 4,627 — With related allowance recorded: Construction, land & land development 217 215 107 4,277 2,124 201 Other commercial real estate — — — — — — Total commercial real estate 217 215 107 4,277 2,124 201 Residential real estate 714 654 327 891 825 413 Owner-occupied real estate — — — 1,706 1,687 44 Commercial, financial & agricultural 940 913 119 308 298 146 Consumer 62 38 19 55 54 27 Subtotal 1,933 1,820 572 7,237 4,988 831 Total impaired loans $ 7,288 $ 6,599 $ 572 $ 13,776 $ 9,615 $ 831 (1) Includes loans with SBA guaranteed balances of $4.4 million and $3.0 million at June 30, 2017 and December 31, 2016 , respectively. The following table presents information related to the average recorded investment and interest income recognized on impaired loans, for the periods presented (dollars in thousands) : June 30, 2017 June 30, 2016 Impaired Loans Average Recorded Investment (1) Interest Income Recognized (2) Average Recorded Investment (1) Interest Income Recognized (2) Three Months Ended Construction, land & land development $ 3,458 $ — $ 5,832 $ — Other commercial real estate 51 — 239 — Total commercial real estate 3,509 — 6,071 — Residential real estate 1,018 — 1,803 — Owner-occupied real estate 2,788 — — 3 Commercial, financial & agricultural 2,682 1 1,709 16 Consumer 72 — 34 — Total impaired loans $ 10,069 $ 1 $ 9,617 $ 19 Six Months Ended Construction, land & land development $ 4,297 $ — $ 6,845 $ — Other commercial real estate 53 — 321 — Total commercial real estate 4,350 — 7,166 — Residential real estate 1,031 — 1,868 — Owner-occupied real estate 2,824 — 380 3 Commercial, financial & agricultural 2,736 1 2,242 24 Consumer 77 — 38 — Total impaired loans $ 11,018 $ 1 $ 11,694 $ 27 (1) The average recorded investment for troubled debt restructurings was $3.2 million and $4.1 million for the three and six months ended June 30, 2017 , respectively, and was $5.8 million and $7.7 million for the three and six months ended June 30, 2016 , respectively. (2) The interest income recognized on troubled debt restructurings was $0 for both the three and six months ended June 30, 2017 , and was $16,000 and $24,000 for the three and six months ended June 30, 2016 , respectively.
Nonaccrual Loans, Organic and Purchased Non-Credit Impaired	The following table presents the recorded investment in nonaccrual loans by loan class at the dates indicated (dollars in thousands) : Nonaccrual Loans June 30, 2017 December 31, 2016 Construction, land & land development $ 215 $ 5,057 Other commercial real estate 49 56 Total commercial real estate 264 5,113 Residential real estate 1,013 1,146 Owner-occupied real estate 2,752 1,874 Commercial, financial & agricultural 2,484 1,426 Consumer 50 56 Total nonaccrual loans $ 6,563 $ 9,615
Past Due Loans	The following table presents an analysis of past due organic loans, by class of loans, at the dates indicated (dollars in thousands) : Organic Loans 30 - 89 Days Past Due 90 Days or Greater Past Due Total Past Due Current Total Loans Loans > 90 Days and Accruing June 30, 2017 Construction, land & land development $ — $ 215 $ 215 $ 413,342 $ 413,557 $ — Other commercial real estate — — — 960,762 960,762 — Total commercial real estate — 215 215 1,374,104 1,374,319 — Residential real estate 248 99 347 167,408 167,755 — Owner-occupied real estate 622 — 622 244,015 244,637 — Commercial, financial & agricultural 189 472 661 354,968 355,629 — Leases — — — 73,103 73,103 — Consumer 112 — 112 59,916 60,028 — Total organic loans $ 1,171 $ 786 $ 1,957 $ 2,273,514 $ 2,275,471 $ — December 31, 2016 Construction, land & land development $ 49 $ 12 $ 61 $ 499,957 $ 500,018 $ — Other commercial real estate — — — 754,790 754,790 — Total commercial real estate 49 12 61 1,254,747 1,254,808 — Residential real estate 157 118 275 144,020 144,295 — Owner-occupied real estate 40 — 40 256,277 256,317 — Commercial, financial & agricultural 247 283 530 326,851 327,381 — Leases — — — 71,724 71,724 — Consumer 350 31 381 35,658 36,039 — Total organic loans $ 843 $ 444 $ 1,287 $ 2,089,277 $ 2,090,564 $ — The following table presents an analysis of past due purchased non-credit impaired loans, by class of loans, at the dates indicated (dollars in thousands) : Purchased Non-Credit Impaired Loans 30 - 89 Days Past Due 90 Days or Greater Past Due Total Past Due Current Total Loans Loans > 90 Days and Accruing June 30, 2017 Construction, land & land development $ — $ — $ — $ 31,083 $ 31,083 $ — Other commercial real estate — 50 50 171,864 171,914 — Total commercial real estate — 50 50 202,947 202,997 — Residential real estate 458 93 551 116,898 117,449 — Owner-occupied real estate 164 2,579 2,743 111,695 114,438 — Commercial, financial & agricultural 892 706 1,598 30,056 31,654 — Consumer 1 5 6 3,387 3,393 — Total purchased non-credit impaired loans $ 1,515 $ 3,433 $ 4,948 $ 464,983 $ 469,931 $ — December 31, 2016 Construction, land & land development $ 495 $ — $ 495 $ 50,713 $ 51,208 $ — Other commercial real estate 17 56 73 209,458 209,531 — Total commercial real estate 512 56 568 260,171 260,739 — Residential real estate 274 165 439 144,157 144,596 — Owner-occupied real estate 387 1,687 2,074 113,492 115,566 — Commercial, financial & agricultural 144 552 696 35,510 36,206 — Consumer 38 2 40 6,215 6,255 — Total purchased non-credit impaired loans $ 1,355 $ 2,462 $ 3,817 $ 559,545 $ 563,362 $ — The following table presents an analysis of past due purchased credit impaired loans, by class of loans, at the dates indicated (dollars in thousands) : Purchased Credit Impaired Loans 30 - 89 Days Past Due 90 Days or Greater Past Due Total Past Due Current Total Loans June 30, 2017 Construction, land & land development $ 48 $ 1,909 $ 1,957 $ 14,900 $ 16,857 Other commercial real estate 657 3,775 4,432 41,646 46,078 Total commercial real estate 705 5,684 6,389 56,546 62,935 Residential real estate 2,462 2,251 4,713 40,800 45,513 Owner-occupied real estate 119 2,619 2,738 20,524 23,262 Commercial, financial & agricultural 52 6 58 3,559 3,617 Consumer 15 3 18 253 271 Total purchased credit impaired loans $ 3,353 $ 10,563 $ 13,916 $ 121,682 $ 135,598 December 31, 2016 Construction, land & land development $ 722 $ 1,853 $ 2,575 $ 13,962 $ 16,537 Other commercial real estate 346 3,148 3,494 57,248 60,742 Total commercial real estate 1,068 5,001 6,069 71,210 77,279 Residential real estate 1,210 2,787 3,997 50,510 54,507 Owner-occupied real estate 661 3,507 4,168 19,812 23,980 Commercial, financial & agricultural 29 61 90 4,443 4,533 Consumer — 5 5 342 347 Total purchased credit impaired loans $ 2,968 $ 11,361 $ 14,329 $ 146,317 $ 160,646
Risk Grades of Loan Portfolio	The following table presents the risk grades of the organic loan portfolio, by class of loans, at the dates indicated (dollars in thousands) : Organic Loans Pass Watch OAEM Substandard Doubtful Total June 30, 2017 Construction, land & land development $ 382,550 $ 30,606 $ 88 $ 313 $ — $ 413,557 Other commercial real estate 927,904 32,858 — — — 960,762 Total commercial real estate 1,310,454 63,464 88 313 — 1,374,319 Residential real estate 162,901 3,307 118 1,429 — 167,755 Owner-occupied real estate 226,007 16,387 1,631 612 — 244,637 Commercial, financial & agricultural 353,593 770 744 522 — 355,629 Leases 66,042 7,061 — — — 73,103 Consumer 59,841 63 — 124 — 60,028 Total organic loans $ 2,178,838 $ 91,052 $ 2,581 $ 3,000 $ — $ 2,275,471 December 31, 2016 Construction, land & land development $ 470,686 $ 24,178 $ 97 $ 5,057 $ — $ 500,018 Other commercial real estate 718,969 35,821 — — — 754,790 Total commercial real estate 1,189,655 59,999 97 5,057 — 1,254,808 Residential real estate 139,393 2,484 460 1,958 — 144,295 Owner-occupied real estate 237,753 14,967 3,577 20 — 256,317 Commercial, financial & agricultural 325,161 920 624 676 — 327,381 Leases 60,849 10,875 — — — 71,724 Consumer 35,844 47 2 145 1 36,039 Total organic loans $ 1,988,655 $ 89,292 $ 4,760 $ 7,856 $ 1 $ 2,090,564 The following table presents the risk grades of the purchased non-credit impaired loan portfolio, by class of loans, at the dates indicated (dollars in thousands) : Purchased Non-Credit Impaired Loans Pass Watch OAEM Substandard Doubtful Total June 30, 2017 Construction, land & land development $ 30,629 $ 454 $ — $ — $ — $ 31,083 Other commercial real estate 169,000 2,287 578 49 — 171,914 Total commercial real estate 199,629 2,741 578 49 — 202,997 Residential real estate 114,387 2,581 122 359 — 117,449 Owner-occupied real estate 106,386 4,765 — 3,287 — 114,438 Commercial, financial & agricultural 29,472 — 87 2,095 — 31,654 Consumer 3,378 1 — 14 — 3,393 Total purchased non-credit impaired loans $ 453,252 $ 10,088 $ 787 $ 5,804 $ — $ 469,931 December 31, 2016 Construction, land & land development $ 51,208 $ — $ — $ — $ — $ 51,208 Other commercial real estate 206,515 803 2,157 56 — 209,531 Total commercial real estate 257,723 803 2,157 56 — 260,739 Residential real estate 142,079 1,883 314 320 — 144,596 Owner-occupied real estate 107,096 6,310 — 2,160 — 115,566 Commercial, financial & agricultural 34,747 310 21 1,128 — 36,206 Consumer 6,247 5 — 3 — 6,255 Total purchased non-credit impaired loans $ 547,892 $ 9,311 $ 2,492 $ 3,667 $ — $ 563,362 The following table presents the risk grades of the purchased credit impaired loan portfolio, by class of loans (dollars in thousands) : Purchased Credit Impaired Loans Pass Watch OAEM Substandard Doubtful Total June 30, 2017 Construction, land & land development $ 9,331 $ 1,254 $ 933 $ 5,339 $ — $ 16,857 Other commercial real estate 20,527 12,874 2,215 10,462 — 46,078 Total commercial real estate 29,858 14,128 3,148 15,801 — 62,935 Residential real estate 24,213 7,587 2,048 11,402 263 45,513 Owner-occupied real estate 7,694 5,028 813 9,727 — 23,262 Commercial, financial & agricultural 2,616 297 202 502 — 3,617 Consumer 38 60 157 15 1 271 Total purchased credit impaired loans $ 64,419 $ 27,100 $ 6,368 $ 37,447 $ 264 $ 135,598 December 31, 2016 Construction, land & land development $ 7,798 $ 1,150 $ 1,416 $ 6,173 $ — $ 16,537 Other commercial real estate 33,423 13,103 2,770 11,446 — 60,742 Total commercial real estate 41,221 14,253 4,186 17,619 — 77,279 Residential real estate 28,628 10,371 2,840 12,396 272 54,507 Owner-occupied real estate 7,736 4,884 794 10,566 — 23,980 Commercial, financial & agricultural 3,381 310 273 569 — 4,533 Consumer 53 100 173 21 — 347 Total purchased credit impaired loans $ 81,019 $ 29,918 $ 8,266 $ 41,171 $ 272 $ 160,646
Troubled Debt Restructurings on Financing Receivables	The following table provides information on loans that were modified as TDRs during the periods presented (dollars in thousands) : June 30, 2017 June 30, 2016 TDR Additions (1) Number of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Number of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Six Months Ended Construction, land & land development — $ — $ — 1 $ 4,168 $ 4,168 Other commercial real estate — — — — — — Total commercial real estate — — — 1 4,168 4,168 Commercial & industrial — — — — — — Owner-occupied real estate — — — — — — Residential real estate — — — — — — Consumer & Other — — — — — — Total modifications — $ — $ — 1 $ 4,168 $ 4,168 (1) The pre-modification and post-modification recorded investment amount represents the recorded investment on the date of the loan modification. Since the modifications on this loan were an interest rate concession and payment term extension, not principal reductions, the pre-modification and post-modification recorded investment amount is the same.

Other Real Estate Owned (OREO)

Other Real Estate Owned (OREO) (Tables)	6 Months Ended
	Jun. 30, 2017
Banking and Thrift [Abstract]
Schedule of Other Real Estate Owned	The following table presents other real estate owned ("OREO") by property type at the dates indicated (dollars in thousands) : Other real estate owned June 30, 2017 December 31, 2016 Construction, land development, and other land $ 1,146 $ 2,393 Commercial and farmland real estate 746 6,960 Residential real estate 515 1,544 Total other real estate owned $ 2,407 $ 10,897 The following table presents OREO by type of loan foreclosure or banking premises transferred into OREO at the dates indicated (dollars in thousands) : Other real estate owned June 30, 2017 December 31, 2016 Organic OREO $ 23 $ 282 Purchased Credit Impaired OREO 2,384 10,615 Total other real estate owned $ 2,407 $ 10,897

SBA Servicing Rights (Tables)

SBA Servicing Rights (Tables)	6 Months Ended
	Jun. 30, 2017
Transfers and Servicing [Abstract]
Schedule of Servicing Assets at Fair Value	The table below summarizes the activity in the SBA servicing rights asset for the periods presented (dollars in thousands) : Three Months Ended Six Months Ended June 30 June 30 SBA Servicing Rights 2017 2016 2017 2016 Balance, beginning of period $ 3,547 $ 2,882 $ 3,477 $ 2,626 Additions 391 340 597 624 Fair value adjustments (110 ) (57 ) (246 ) (85 ) Balance, end of period $ 3,828 $ 3,165 $ 3,828 $ 3,165
Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value	The fair value of the SBA servicing rights asset, key metrics, and the sensitivity of the fair value due to adverse changes in key economic assumptions at the periods presented are as follows (dollars in thousands) : SBA Servicing Rights June 30, 2017 December 31, 2016 Fair value $ 3,828 $ 3,477 Weighted average discount rate 12.4 % 12.8 % Decline in fair value due to a 100 basis point adverse change $ (137 ) $ (122 ) Decline in fair value due to a 200 basis point adverse change (264 ) (236 ) Prepayment speed 8.2 % 8.0 % Decline in fair value due to a 10% adverse change $ (124 ) $ (108 ) Decline in fair value due to a 20% adverse change (241 ) (210 ) Weighted average remaining life (years) 7.0 7.1
Schedule of Servicing Assets Past Due	Information about the SBA loans serviced by the Company at and for the periods presented are as follows (dollars in thousands) : June 30, 2017 SBA Loans Serviced Unpaid Principal Balance 30 - 89 Days Past Due 90 Days or Greater Past Due Net Charge-offs for the Six Months Ended June 30, 2017 Serviced for others $ 169,329 $ 380 $ — $ — Held-for-sale 17,473 — — — Held-for-investment 159,052 1,455 7,390 210 Total SBA loans serviced $ 345,854 $ 1,835 $ 7,390 $ 210 December 31, 2016 SBA Loans Serviced Unpaid Principal Balance 30 - 89 Days Past Due 90 Days or Greater Past Due Net Charge-offs for the Six Months Ended June 30, 2016 Serviced for others $ 142,069 $ 522 $ — $ — Held-for-sale 16,356 — — — Held-for-investment 144,351 220 5,580 2,160 Total SBA loans serviced $ 302,776 $ 742 $ 5,580 $ 2,160

Derivative Instruments and He30

Derivative Instruments and Hedging Activities (Tables)	6 Months Ended
	Jun. 30, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value	The table below presents the fair values of the Company's interest rate swaps and caps at the dates presented (dollars in thousands) : Asset Derivatives (1) Liability Derivatives (1) June 30, 2017 December 31, 2016 June 30, 2017 December 31, 2016 Derivatives Designated as Hedging Instruments Interest rate swaps and caps $ 1,717 $ 1,774 $ 495 $ 641 Derivatives Not Designated as Hedging Instruments Interest rate swaps $ 15 $ 19 $ 74 $ 85 Mortgage derivatives 990 1,362 439 459 (1) All asset derivatives are located in "Other Assets" on the consolidated statements of financial condition and all liability derivatives are located in "Other Liabilities" on the consolidated statements of financial condition.
Schedule of Fair Value Hedging Instruments, Statements of Financial Performance and Financial Position, Location	The table below presents the effect of the Company's derivatives in fair value hedging relationships for the periods presented (dollars in thousands) : Three Months Ended Six Months Ended June 30 June 30 Interest Rate Products Location 2017 2016 2017 2016 Amount of (loss) gain recognized in income on derivatives Noninterest income $ (464 ) $ (1,471 ) $ 32 $ (4,373 ) Amount of gain (loss) recognized in income on hedged items Noninterest income 425 1,355 (83 ) 4,062 Total net loss recognized in income on fair value hedge ineffectiveness $ (39 ) $ (116 ) $ (51 ) $ (311 )
Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss)	The table below presents the effect of the Company's derivatives in cash flow hedging relationships for the periods presented (dollars in thousands) : Three Months Ended Six Months Ended June 30 June 30 Interest Rate Products Location 2017 2016 2017 2016 Amount of gain (loss) recognized in AOCI on derivatives (effective portion) OCI $ 21 $ (238 ) $ 80 $ (920 ) Amount of loss reclassified from AOCI into income (effective portion) Interest expense 430 266 834 484 Amount of loss recognized in consolidated statements of comprehensive income $ (409 ) $ (504 ) $ (754 ) $ (1,404 )
Schedule of Other Derivatives Not Designated as Hedging Instruments, Statements of Financial Performance and Financial Position, Location	The table below presents the effect of the Company's derivatives not designated as hedging instruments for the periods presented (dollars in thousands) : Three Months Ended Six Months Ended June 30 June 30 Interest Rate Products Location 2017 2016 2017 2016 Amount of loss recognized in income on interest rate swaps Noninterest income $ (40 ) $ (65 ) $ (56 ) $ (220 ) Amount of (loss) gain recognized in income on interest rate lock commitments Noninterest income (284 ) 172 329 743 Amount of gain (loss) recognized in income on forward commitments Noninterest income 303 (508 ) (682 ) (850 ) Total loss recognized in income on derivatives not designated as hedging instruments $ (21 ) $ (401 ) $ (409 ) $ (327 )

Balance Sheet Offsetting and 31

Balance Sheet Offsetting and Repurchase Agreements (Tables)	6 Months Ended
	Jun. 30, 2017
Offsetting [Abstract]
Offsetting Assets	The table below presents information about the Company’s financial instruments that are eligible for offset in the consolidated statements of financial condition at the dates presented (dollars in thousands) : Gross Amounts Recognized Gross Amounts Offset on the Statement of Financial Condition Net Amounts Presented on the Statement of Financial Condition Gross Amounts Not Offset on the Statement of Financial Condition Net Amount Financial Instruments Collateral Received/Posted (1) June 30, 2017 Offsetting Assets Interest rate swaps and caps $ 1,732 $ — $ 1,732 $ (557 ) $ (100 ) $ 1,075 Offsetting Liabilities Interest rate swaps and caps $ 569 $ — $ 569 $ (557 ) $ — $ 12 Repurchase agreements 25,256 — 25,256 — (25,256 ) — Total liabilities $ 25,825 $ — $ 25,825 $ (557 ) $ (25,256 ) $ 12 December 31, 2016 Offsetting Assets Interest rate swaps and caps $ 1,793 $ — $ 1,793 $ (718 ) $ (1,075 ) $ — Offsetting Liabilities Interest rate swaps and caps $ 726 $ — $ 726 $ (718 ) $ — $ 8 Repurchase agreements 25,722 — 25,722 — (25,722 ) — Total liabilities $ 26,448 $ — $ 26,448 $ (718 ) $ (25,722 ) $ 8 (1) The application of collateral cannot reduce the net amount below zero; therefore, excess collateral received/posted is not reflected in this table. All positions are fully collateralized.
Offsetting Liabilities	The table below presents information about the Company’s financial instruments that are eligible for offset in the consolidated statements of financial condition at the dates presented (dollars in thousands) : Gross Amounts Recognized Gross Amounts Offset on the Statement of Financial Condition Net Amounts Presented on the Statement of Financial Condition Gross Amounts Not Offset on the Statement of Financial Condition Net Amount Financial Instruments Collateral Received/Posted (1) June 30, 2017 Offsetting Assets Interest rate swaps and caps $ 1,732 $ — $ 1,732 $ (557 ) $ (100 ) $ 1,075 Offsetting Liabilities Interest rate swaps and caps $ 569 $ — $ 569 $ (557 ) $ — $ 12 Repurchase agreements 25,256 — 25,256 — (25,256 ) — Total liabilities $ 25,825 $ — $ 25,825 $ (557 ) $ (25,256 ) $ 12 December 31, 2016 Offsetting Assets Interest rate swaps and caps $ 1,793 $ — $ 1,793 $ (718 ) $ (1,075 ) $ — Offsetting Liabilities Interest rate swaps and caps $ 726 $ — $ 726 $ (718 ) $ — $ 8 Repurchase agreements 25,722 — 25,722 — (25,722 ) — Total liabilities $ 26,448 $ — $ 26,448 $ (718 ) $ (25,722 ) $ 8 (1) The application of collateral cannot reduce the net amount below zero; therefore, excess collateral received/posted is not reflected in this table. All positions are fully collateralized.

Regulatory Matters (Tables)

Regulatory Matters (Tables)	6 Months Ended
	Jun. 30, 2017
Banking and Thrift [Abstract]
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations	The minimum regulatory capital ratios and ratios to be considered well-capitalized under prompt corrective action provisions at both June 30, 2017 and December 31, 2016 are presented in the table below: Capital Ratio Requirements Minimum Requirement Well-capitalized (1) Common Equity Tier 1 (CET1) capital ratio 4.50% 6.50% Tier 1 risk-based capital ratio 6.00% 8.00% Total risk-based capital ratio 8.00% 10.00% Tier 1 leverage ratio 4.00% 5.00% (1) The prompt corrective action provisions are only applicable at the bank level. At June 30, 2017 and December 31, 2016 , the Company and State Bank exceeded all regulatory capital adequacy requirements to which they were subject. The Company's regulatory ratios at the dates indicated are presented in the table below (dollars in thousands) : June 30, 2017 December 31, 2016 Actual Required Actual Required Amount Ratio Minimum Amount Amount Ratio Minimum Amount Company Common Equity Tier 1 (CET1) capital ratio $ 542,230 14.98 % $ 162,934 $ 526,282 14.78 % $ 160,258 Tier 1 risk-based capital ratio 542,230 14.98 % 217,245 526,282 14.78 % 213,678 Total risk-based capital ratio 570,218 15.75 % 289,661 552,880 15.52 % 284,904 Tier 1 leverage ratio 542,230 13.23 % 163,943 526,282 14.90 % 141,273 State Bank's regulatory ratios at the dates indicated are presented in the table below (dollars in thousands) : June 30, 2017 December 31, 2016 Actual Required Actual Required Amount Ratio Minimum Amount Well Capitalized Amount Amount Ratio Minimum Amount Well Capitalized Amount State Bank Common Equity Tier 1 (CET1) capital ratio $ 464,608 12.89 % $ 162,255 $ 234,369 $ 463,164 13.06 % $ 159,535 $ 230,440 Tier 1 risk-based capital ratio 464,608 12.89 % 216,340 288,454 463,164 13.06 % 212,714 283,618 Total risk-based capital ratio 492,596 13.66 % 288,454 360,567 489,762 13.81 % 283,618 354,523 Tier 1 leverage ratio 464,608 11.40 % 162,990 203,738 463,164 13.18 % 140,572 175,715

Commitments and Contingent Li33

Commitments and Contingent Liabilities (Tables)	6 Months Ended
	Jun. 30, 2017
Commitments and Contingencies Disclosure [Abstract]
Summary of Commitments	A summary of the Company's commitments is as follows (dollars in thousands) : June 30, 2017 December 31, 2016 Commitments to extend credit: Fixed $ 63,103 $ 63,166 Variable 661,055 608,176 Letters of credit: Fixed 4,995 6,985 Variable 3,325 3,239 Total commitments $ 732,478 $ 681,566

Fair Value (Tables)

Fair Value (Tables)	6 Months Ended
	Jun. 30, 2017
Fair Value Disclosures [Abstract]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis	The following tables present financial assets and financial liabilities measured at fair value on a recurring basis at the dates indicated, segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value (dollars in thousands) : June 30, 2017 Quoted Market Prices in Active Markets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Assets: U.S. Government securities $ — $ 84,229 $ — $ 84,229 States and political subdivisions — 301 — 301 Residential mortgage-backed securities — nonagency — 135,137 — 135,137 Residential mortgage-backed securities — agency — 513,054 — 513,054 Corporate securities — 115,074 — 115,074 Hedged loans — 169,592 — 169,592 Mortgage loans held-for-sale — 31,422 — 31,422 Mortgage derivatives — 100 890 990 Interest rate swaps and caps — 1,732 — 1,732 SBA servicing rights — — 3,828 3,828 Total recurring assets at fair value $ — $ 1,050,641 $ 4,718 $ 1,055,359 Liabilities: Interest rate swaps and caps $ — $ 569 $ — $ 569 Mortgage derivatives — 54 385 439 Total recurring liabilities at fair value $ — $ 623 $ 385 $ 1,008 December 31, 2016 Quoted Market Prices in Active Markets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Assets: U.S. Government securities $ — $ 88,649 $ — $ 88,649 States and political subdivisions — 301 — 301 Residential mortgage-backed securities — nonagency — 154,009 — 154,009 Residential mortgage-backed securities — agency — 529,302 — 529,302 Corporate securities — 74,917 — 74,917 Hedged loans — 167,165 — 167,165 Mortgage loans held for sale — 35,813 — 35,813 Mortgage derivatives — 663 699 1,362 Interest rate swaps and caps — 1,793 — 1,793 SBA servicing rights — — 3,477 3,477 Total recurring assets at fair value $ — $ 1,052,612 $ 4,176 $ 1,056,788 Liabilities: Interest rate swaps and caps $ — $ 726 $ — $ 726 Mortgage derivatives — 14 445 459 Total recurring liabilities at fair value $ — $ 740 $ 445 $ 1,185
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation	Three Months Ended June 30 Six Months Ended June 30 2017 2017 Mortgage Derivatives Other Assets Other Liabilities Other Assets Other Liabilities Balance, beginning of period $ 1,096 $ 465 $ 699 $ 445 Issuances (1) 362 363 1,204 828 Settlements and closed loans (1) (568 ) (443 ) (1,013 ) (888 ) Balance, end of period $ 890 $ 385 $ 890 $ 385 Three Months Ended June 30 Six Months Ended June 30 2016 2016 Mortgage Derivatives Other Assets Other Liabilities Other Assets Other Liabilities Balance, beginning of period $ 1,350 $ 635 $ 651 $ 361 Issuances (1) 606 542 1,657 1,169 Settlements and closed loans (1) (618 ) (617 ) (970 ) (970 ) Balance, end of period $ 1,338 $ 560 $ 1,338 $ 560 (1) The change in fair value, recorded as a component of "mortgage banking income" on the consolidated statements of income, was a loss of $126,000 and a gain of $251,000 for the three months and six months ended June 30, 2017 , respectively. The change in fair value resulted in gain s of $63,000 and $488,000 for the three and six months ended June 30, 2016 .
Fair Value Measurements, Financial Assets Measured on a Nonrecurring Basis	The following table presents financial assets measured at fair value on a nonrecurring basis at the dates indicated, segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value (dollars in thousands) : Quoted Market Prices in Active Markets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total June 30, 2017 Impaired loans $ — $ — $ 6,027 $ 6,027 Total nonrecurring assets at fair value $ — $ — $ 6,027 $ 6,027 December 31, 2016 Impaired loans $ — $ — $ 8,784 $ 8,784 Total nonrecurring assets at fair value $ — $ — $ 8,784 $ 8,784
Fair Value Measurements Nonfinancial Assets Nonrecurring	The following table presents nonfinancial assets measured at fair value on a nonrecurring basis at the dates indicated, segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value ( dollars in thousands ): Quoted Market Prices in Active Markets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total June 30, 2017 Other real estate owned $ — $ — $ 2,880 $ 2,880 December 31, 2016 Other real estate owned $ — $ — $ 13,292 $ 13,292
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation	The following table is a reconciliation of the fair value measurement of other real estate owned disclosed in accordance with ASC 820 to the amount recorded on the consolidated statement of financial condition at the dates indicated (dollars in thousands) : June 30, 2017 December 31, 2016 Other real estate owned: Other real estate owned at fair value $ 2,880 $ 13,292 Estimated selling costs and other adjustments (473 ) (2,395 ) Other real estate owned $ 2,407 $ 10,897
Fair Value Measurements Unobservable Inputs	The following tables provide information describing the unobservable inputs used in Level 3 fair value measurements at the dates indicated (dollars in thousands) : June 30, 2017 Fair Value Valuation Technique Unobservable Inputs Range (Weighted Average) SBA servicing rights $ 3,828 Discounted cash flows Discount rate 9% - 19% (12%) Prepayment speed 3% - 12% (8%) Mortgage derivatives - asset $ 890 Pricing model Pull-through rate 83% Mortgage derivatives - liability $ 385 Pricing model Pull-through rate 83% Impaired loans - collateral dependent $ 6,027 Third party appraisal Management discount for property type and recent market volatility 0% - 50% (9%) Other real estate owned $ 2,880 Third party appraisal Management discount for property type and recent market volatility 0% - 33% (14%) December 31, 2016 Fair Value Valuation Technique Unobservable Inputs Range (Weighted Average) SBA servicing rights $ 3,477 Discounted cash flows Discount rate 9% - 18% (13%) Prepayment speed 3% - 11% (8%) Mortgage derivatives - asset $ 699 Pricing model Pull-through rate 84% Mortgage derivatives - liability $ 445 Pricing model Pull-through rate 84% Impaired loans - collateral dependent $ 8,784 Third party appraisal Management discount for property type and recent market volatility 0% - 50% (9%) Other real estate owned $ 13,292 Third party appraisal Management discount for property type and recent market volatility 0% - 68% (16%)
Fair Value Measurements, Recurring and Nonrecurring	The following table includes the estimated fair value of the Company's financial assets and financial liabilities (dollars in thousands) . The methodologies for estimating the fair value of financial assets and financial liabilities measured on a recurring and nonrecurring basis are discussed above. The methodologies for estimating the fair value for other financial assets and financial liabilities are discussed below. The Company has determined the estimated fair value amounts using available market information and appropriate valuation methodologies; however, considerable judgment is required to interpret market data in order to develop the estimates of fair value. Accordingly, the estimates presented below are not necessarily indicative of the amounts the Company could realize in a current market exchange. The use of different market assumptions and/or estimation techniques may have a material effect on the estimated fair value amounts at June 30, 2017 and December 31, 2016 . June 30, 2017 December 31, 2016 Fair Value Hierarchy Level Carrying Amount Estimated Fair Value Carrying Amount Estimated Fair Value Assets: Cash and cash equivalents Level 1 $ 137,674 $ 137,674 $ 149,593 $ 149,593 Investment securities available-for-sale Level 2 847,795 847,795 847,178 847,178 Investment securities held-to-maturity Level 2 & 3 63,104 63,729 67,063 67,435 Loans held-for-sale Level 2 48,895 50,630 52,169 53,770 Loans, net Level 2 & 3 2,853,012 2,878,710 2,787,974 2,820,484 Other real estate owned Level 3 2,407 2,880 10,897 13,292 Interest rate swaps and caps Level 2 1,732 1,732 1,793 1,793 Mortgage derivatives Levels 2 & 3 990 990 1,362 1,362 SBA servicing rights Level 3 3,828 3,828 3,477 3,477 Accrued interest receivable Level 2 10,220 10,220 10,210 10,210 Federal Home Loan Bank stock Level 3 7,186 7,186 5,680 5,680 Liabilities: Deposits Level 2 $ 3,452,692 $ 3,452,775 $ 3,431,165 $ 3,430,405 Securities sold under repurchase agreements Level 2 25,256 25,256 27,673 27,673 FHLB borrowings Level 2 80,000 80,000 47,014 47,014 Notes payable Level 2 398 398 398 398 Interest rate swaps and caps Level 2 569 569 726 726 Mortgage derivatives Levels 2 & 3 439 439 459 459 Accrued interest payable Level 2 1,081 1,081 2,312 2,312

Earnings Per Share (Tables)

Earnings Per Share (Tables)	6 Months Ended
	Jun. 30, 2017
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted	Earnings per share have been computed based on the following weighted average number of common shares outstanding (dollars in thousands, except per share data) : Three Months Ended Six Months Ended June 30 June 30 2017 2016 2017 2016 Numerator: Net income per consolidated statements of income $ 15,203 $ 13,985 $ 26,761 $ 24,823 Net income allocated to participating securities (413 ) (408 ) (706 ) (673 ) Net income allocated to common stock $ 14,790 $ 13,577 $ 26,055 $ 24,150 Basic earnings per share computation: Net income allocated to common stock $ 14,790 $ 13,577 $ 26,055 $ 24,150 Weighted average common shares outstanding, including shares considered participating securities 38,955,513 36,899,198 38,908,102 36,982,312 Less: Average participating securities (1,059,388 ) (1,076,544 ) (1,026,103 ) (1,002,876 ) Weighted average shares 37,896,125 35,822,654 37,881,999 35,979,436 Basic earnings per share $ .39 $ .38 $ .69 $ .67 Diluted earnings per share computation: Net income allocated to common stock $ 14,790 $ 13,577 $ 26,055 $ 24,150 Weighted average common shares outstanding for basic earnings per share 37,896,125 35,822,654 37,881,999 35,979,436 Weighted average dilutive grants 46,358 101,037 52,188 98,384 Weighted average shares and dilutive potential common shares 37,942,483 35,923,691 37,934,187 36,077,820 Diluted earnings per share $ .39 $ .38 $ .69 $ .67

Accumulated Other Comprehensi36

Accumulated Other Comprehensive Income (Tables)	6 Months Ended
	Jun. 30, 2017
Equity [Abstract]
Schedule of Accumulated Other Comprehensive Income	The components of AOCI and changes in those components for the periods presented are as follows (dollars in thousands) : Investment Securities Available-for-Sale Held-to-Maturity Securities Transferred from Available-For-Sale Cash Flow Hedges (Effective Portion) Total Three Months Ended June 30, 2017 Balance, beginning of period $ (1,568 ) $ (177 ) $ (802 ) $ (2,547 ) Other comprehensive loss before income taxes: Net change in unrealized gains 1,089 — 21 1,110 Amounts reclassified for net (gains) losses realized and included in earnings (13 ) — 430 417 Amortization of net unrealized losses on securities transferred to held-to-maturity — 46 — 46 Income tax expense 413 — 172 585 Balance, end of period $ (905 ) $ (131 ) $ (523 ) $ (1,559 ) June 30, 2016 Balance, beginning of period $ 3,294 $ (171 ) $ (1,646 ) $ 1,477 Other comprehensive income (loss) before income taxes: Net change in unrealized gains (losses) 3,759 — (238 ) 3,521 Amounts reclassified for net (gains) losses realized and included in earnings (396 ) — 266 (130 ) Amortization of unrealized gain on securities transferred to-held-to-maturity — (2 ) — (2 ) Income tax expense 1,301 — 11 1,312 Balance, end of period $ 5,356 $ (173 ) $ (1,629 ) $ 3,554 Six Months Ended June 30, 2017 Balance, beginning of period $ (1,200 ) $ (175 ) $ (1,082 ) $ (2,457 ) Other comprehensive loss before income taxes: Net change in unrealized gains 514 — 80 594 Amounts reclassified for net (gains) losses realized and included in earnings (25 ) — 834 809 Amortization of net unrealized losses on securities transferred to-held-to-maturity — 44 — 44 Income tax expense 194 — 355 549 Balance, end of period $ (905 ) $ (131 ) $ (523 ) $ (1,559 ) Investment Securities Available-for-Sale Held-to-Maturity Securities Transferred from Available-For-Sale Cash Flow Hedges (Effective Portion) Total June 30, 2016 Balance, beginning of period $ (272 ) $ — $ (1,362 ) $ (1,634 ) Other comprehensive income (loss) before income taxes: Net change in unrealized gains (losses) 9,415 — (920 ) 8,495 Amounts reclassified for net (gains) losses realized and included in earnings (409 ) — 484 75 Transfer of net unrealized loss from available-for-sale to held-to-maturity 172 (172 ) — — Amortization of net unrealized losses on securities transferred to-held-to-maturity — (1 ) — (1 ) Income tax expense (benefit) 3,550 — (169 ) 3,381 Balance, end of period $ 5,356 $ (173 ) $ (1,629 ) $ 3,554
Reclassification out of Accumulated Other Comprehensive Income	Reclassifications from AOCI into income for the periods presented are as follows (dollars in thousands) : Three Months Ended Six Months Ended June 30 June 30 Reclassifications from AOCI into income and affected line items on Consolidated Statements of Income 2017 2016 2017 2016 Investment securities available-for-sale Gain on sale of investment securities $ 13 $ 396 $ 25 $ 409 Income tax expense (5 ) (153 ) (10 ) (158 ) Net income $ 8 $ 243 $ 15 $ 251 Cash flow hedges (effective portion) Interest expense on deposits $ (430 ) $ (266 ) $ (834 ) $ (484 ) Income tax benefit 165 103 320 187 Net income $ (265 ) $ (163 ) $ (514 ) $ (297 )

Acquisitions - Narrative (Deta

Acquisitions - Narrative (Details) $ / shares in Units, $ in Thousands	Dec. 31, 2016USD ($)$ / shares	Feb. 24, 2017USD ($)	Jun. 30, 2017USD ($)	Dec. 30, 2016USD ($)	Jun. 30, 2016USD ($)	Dec. 31, 2015USD ($)
Business Acquisition [Line Items]
Total assets	$ 4,225,265		$ 4,233,977
Total loans	2,814,572		2,881,000
Total deposits	3,431,165		3,452,692
Total shareholders' equity	613,633		632,337		$ 553,356	$ 536,490
Goodwill	$ 77,084		77,476
NBG Bancorp, Inc.
Business Acquisition [Line Items]
Conversion price per share (in dollars per share) | $ / shares	$ 45.45
Right to convert to State Bank shares, conversion ratio	2.1642
Equity interests acquired in exchange for cash (as a percent)	50.00%
Equity interests acquired in exchange for common stock (as a percent)	50.00%
Total consideration paid	$ 77,863	$ 77,900
Cash consideration paid	34,171	34,200
Common stock issued as part of consideration paid	43,692	$ 43,700
Goodwill	$ 36,587			$ 0
S Bankshares, Inc.
Business Acquisition [Line Items]
Conversion price per share (in dollars per share) | $ / shares	$ 56.70
Right to convert to State Bank shares, conversion ratio	2.7444
Equity interests acquired in exchange for cash (as a percent)	40.00%
Equity interests acquired in exchange for common stock (as a percent)	60.00%
Total consideration paid	$ 12,624
Cash consideration paid	4,281
Common stock issued as part of consideration paid	8,343
Goodwill	4,140			$ 0
Purchased Non-Credit Impaired Loans
Business Acquisition [Line Items]
Total loans	563,362		469,931
Purchased Non-Credit Impaired Loans | NBG Bancorp, Inc.
Business Acquisition [Line Items]
Purchased non-credit impaired loans acquired	317,900
Purchased non-credit impaired loans acquired, contractual balance	350,000
Purchased non-credit impaired loans acquired, estimated uncollectible	4,400
Purchased Non-Credit Impaired Loans | S Bankshares, Inc.
Business Acquisition [Line Items]
Purchased non-credit impaired loans acquired	67,300
Purchased non-credit impaired loans acquired, contractual balance	77,000
Purchased non-credit impaired loans acquired, estimated uncollectible	$ 1,300
AloStar Bank of Commerce
Business Acquisition [Line Items]
Total assets			945,000
Total loans			783,000
Total deposits			704,000
Total shareholders' equity			$ 196,000

Acquisitions - Assets Acquired

Acquisitions - Assets Acquired and Liabilities Assumed - NBG Bancorp, Inc. (Details) - USD ($) $ / shares in Units, $ in Thousands	Dec. 31, 2016	Feb. 24, 2017	Jun. 30, 2017	Dec. 30, 2016
Liabilities
Goodwill	$ 77,084		$ 77,476
NBG Bancorp, Inc.
Assets
Cash and cash equivalents	6,988			$ 38,146
Investment securities available-for-sale	5,934			5,974
Loans, net	344,996			348,641
Loans held-for-sale	694			694
Other real estate owned	64			69
Core deposit intangible	3,740			0
Premises and equipment, net	7,308			7,943
Bank-owned life insurance	1,499			1,499
Other assets	6,818			6,542
Total assets acquired	378,041			409,508
Liabilities
Noninterest-bearing	58,161			58,161
Interest-bearing	230,323			261,034
Total deposits	288,484			319,195
FHLB advances	46,214			46,354
Other liabilities	2,067			2,067
Total liabilities assumed	336,765			367,616
Net identifiable assets acquired over liabilities assumed	41,276			41,892
Goodwill	36,587			0
Net assets acquired over liabilities assumed	77,863			$ 41,892
Assets
Cash and cash equivalents	(31,158)
Investment securities available-for-sale	(40)
Loans, net	(3,645)
Loans held-for-sale	0
Other real estate owned	(5)
Core deposit intangible	3,740
Premises and equipment, net	(635)
Bank-owned life insurance	0
Other assets	276
Total assets acquired	(31,467)
Liabilities
Noninterest-bearing	0
Interest-bearing	(30,711)
Total deposits	(30,711)
FHLB advances	(140)
Other liabilities	0
Total liabilities assumed	(30,851)
Net identifiable assets acquired over liabilities assumed	(616)
Goodwill	36,587
Net assets acquired over liabilities assumed	$ 35,971
Consideration:
State Bank Financial Corporation common shares issued (in shares)	1,626,648
Purchase price per share of the Company's common stock (in dollars per share)	$ 26.86
Company common stock issued	$ 43,692	$ 43,700
Cash exchanged for shares	34,171	34,200
Fair value of total consideration transferred	$ 77,863	$ 77,900

Acquisitions - Assets Acquir39

Acquisitions - Assets Acquired and Liabilities Assumed - S Bankshares, Inc. (Details) - USD ($) $ / shares in Units, $ in Thousands	Dec. 31, 2016	Jun. 30, 2017	Dec. 30, 2016
Liabilities
Goodwill	$ 77,084	$ 77,476
S Bankshares, Inc.
Assets
Cash and cash equivalents	954		$ 954
Investment securities available-for-sale	13,726		13,814
Loans, net	79,039		81,383
Other real estate owned	946		1,278
Core deposit intangible	1,010		0
Premises and equipment, net	3,552		3,132
Bank-owned life insurance	3,124		3,124
Other assets	3,766		2,636
Total assets acquired	106,117		106,321
Liabilities
Noninterest-bearing	16,620		16,620
Interest-bearing	77,158		76,664
Total deposits	93,778		93,284
Federal funds purchased and securities sold under repurchase agreements	1,951		1,951
FHLB advances	800		800
Other liabilities	1,104		1,104
Total liabilities assumed	97,633		97,139
Net identifiable assets acquired over liabilities assumed	8,484		9,182
Goodwill	4,140		0
Net assets acquired over liabilities assumed	12,624		$ 9,182
Fair Value Adjustments
Cash and cash equivalents	0
Investment securities available-for-sale	(88)
Loans, net	(2,344)
Other real estate owned	(332)
Core deposit intangible	1,010
Premises and equipment, net	420
Bank-owned life insurance	0
Other assets	1,130
Total assets acquired	(204)
Noninterest-bearing	0
Interest-bearing	494
Total deposits	494
Federal funds purchased and securities sold under repurchase agreements	0
FHLB advances	0
Other liabilities	0
Total liabilities assumed	494
Net identifiable assets acquired over liabilities assumed	(698)
Goodwill	4,140
Net assets acquired over liabilities assumed	$ 3,442
Consideration:
State Bank Financial Corporation common shares issued (in shares)	310,596
Purchase price per share of the Company's common stock (in dollars per share)	$ 26.86
Company common stock issued	$ 8,343
Cash exchanged for shares	4,281
Fair value of total consideration transferred	$ 12,624

Acquisitions - Pro Forma Infor

Acquisitions - Pro Forma Information (Details) $ / shares in Units, $ in Thousands	6 Months Ended
	Jun. 30, 2016USD ($)$ / shares
NBG Bancorp, Inc.
Pro Forma
Net interest income, Pro Forma | $	$ 87,137
Net income, Pro Forma | $	$ 27,738
Earnings per share:
Earnings per share, basic (in dollars per share) | $ / shares	$ 0.72
Earnings per share, diluted (in dollars per share) | $ / shares	$ 0.72
S Bankshares, Inc.
Pro Forma
Net interest income, Pro Forma | $	$ 81,301
Net income, Pro Forma | $	$ 24,961
Earnings per share:
Earnings per share, basic (in dollars per share) | $ / shares	$ 0.67
Earnings per share, diluted (in dollars per share) | $ / shares	$ 0.67

Acquisitions - Purchased Credi

Acquisitions - Purchased Credit Impaired Loans Acquired (Details) $ in Thousands	Dec. 31, 2016USD ($)
NBG Bancorp, Inc.
Business Acquisition [Line Items]
Contractually required principal and interest at acquisition	$ 33,584
Contractual cash flows not expected to be collected (nonaccretable difference)	(3,736)
Expected cash flows at acquisition	29,848
Accretable difference	(2,799)
Basis in acquired loans at acquisition - estimated fair value	27,049
S Bankshares, Inc.
Business Acquisition [Line Items]
Contractually required principal and interest at acquisition	15,966
Contractual cash flows not expected to be collected (nonaccretable difference)	(2,805)
Expected cash flows at acquisition	13,161
Accretable difference	(1,377)
Basis in acquired loans at acquisition - estimated fair value	$ 11,784

Investment Securities - Availa

Investment Securities - Available-for-Sale Reconciliation (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 849,263	$ 849,135
Unrealized Gains	4,399	3,955
Unrealized Losses	5,867	5,912
Fair Value	847,795	847,178
U.S. Government securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	84,546	89,044
Unrealized Gains	17	70
Unrealized Losses	334	465
Fair Value	84,229	88,649
States and political subdivisions
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	300	300
Unrealized Gains	1	1
Unrealized Losses	0	0
Fair Value	301	301
Residential mortgage-backed securities — nonagency
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	132,493	151,519
Unrealized Gains	2,924	3,129
Unrealized Losses	280	639
Fair Value	135,137	154,009
Residential mortgage-backed securities — agency
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	517,796	533,479
Unrealized Gains	437	548
Unrealized Losses	5,179	4,725
Fair Value	513,054	529,302
Corporate securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	114,128	74,793
Unrealized Gains	1,020	207
Unrealized Losses	74	83
Fair Value	$ 115,074	$ 74,917

Investment Securities - Held-t

Investment Securities - Held-to-maturity Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	$ 63,104	$ 67,063
Unrealized Gains	625	386
Unrealized Losses	0	14
Investment securities held-to-maturity - fair value	63,729	67,435
Asset-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	52,894	56,804
Unrealized Gains	435	295
Unrealized Losses	0	14
Investment securities held-to-maturity - fair value	53,329	57,085
Corporate securities
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	10,210	10,259
Unrealized Gains	190	91
Unrealized Losses	0	0
Investment securities held-to-maturity - fair value	$ 10,400	$ 10,350

Investment Securities - Schedu

Investment Securities - Schedule of Contractual Maturities of Investment Securities Available for Sale (Details) $ in Thousands	Jun. 30, 2017USD ($)
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]
Due 1 Year or Less, Amortized Cost	$ 15,788
Due 1-5 Years, Amortized Cost	183,002
Due 5-10 Years, Amortized Cost	294,990
Due After 10 Years, Amortized Cost	355,483
Amortized Cost	849,263
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Due 1 Year or Less, Fair Value	15,790
Due 1-5 Years, Fair Value	183,021
Due 5-10 Years, Fair Value	292,843
Due After 10 Years, Fair Value	356,141
Fair Value	847,795
U.S. Government securities
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]
Due 1 Year or Less, Amortized Cost	2,492
Due 1-5 Years, Amortized Cost	82,054
Due 5-10 Years, Amortized Cost	0
Due After 10 Years, Amortized Cost	0
Amortized Cost	84,546
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Due 1 Year or Less, Fair Value	2,493
Due 1-5 Years, Fair Value	81,736
Due 5-10 Years, Fair Value	0
Due After 10 Years, Fair Value	0
Fair Value	84,229
States and political subdivisions
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]
Due 1 Year or Less, Amortized Cost	0
Due 1-5 Years, Amortized Cost	300
Due 5-10 Years, Amortized Cost	0
Due After 10 Years, Amortized Cost	0
Amortized Cost	300
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Due 1 Year or Less, Fair Value	0
Due 1-5 Years, Fair Value	301
Due 5-10 Years, Fair Value	0
Due After 10 Years, Fair Value	0
Fair Value	301
Residential mortgage-backed securities — nonagency
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]
Due 1 Year or Less, Amortized Cost	0
Due 1-5 Years, Amortized Cost	0
Due 5-10 Years, Amortized Cost	0
Due After 10 Years, Amortized Cost	132,493
Amortized Cost	132,493
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Due 1 Year or Less, Fair Value	0
Due 1-5 Years, Fair Value	0
Due 5-10 Years, Fair Value	0
Due After 10 Years, Fair Value	135,137
Fair Value	135,137
Residential mortgage-backed securities — agency
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]
Due 1 Year or Less, Amortized Cost	0
Due 1-5 Years, Amortized Cost	15,699
Due 5-10 Years, Amortized Cost	280,991
Due After 10 Years, Amortized Cost	221,106
Amortized Cost	517,796
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Due 1 Year or Less, Fair Value	0
Due 1-5 Years, Fair Value	15,676
Due 5-10 Years, Fair Value	278,468
Due After 10 Years, Fair Value	218,910
Fair Value	513,054
Corporate securities
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]
Due 1 Year or Less, Amortized Cost	13,296
Due 1-5 Years, Amortized Cost	84,949
Due 5-10 Years, Amortized Cost	13,999
Due After 10 Years, Amortized Cost	1,884
Amortized Cost	114,128
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Due 1 Year or Less, Fair Value	13,297
Due 1-5 Years, Fair Value	85,308
Due 5-10 Years, Fair Value	14,375
Due After 10 Years, Fair Value	2,094
Fair Value	$ 115,074

Investment Securities - Held45

Investment Securities - Held-to-maturity Security Maturities (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Amortized Cost:
1 Year or Less	$ 0
1-5 Years	0
5-10 Years	47,604
After 10 Years	15,500
Amortized Cost	63,104	$ 67,063
Fair Value:
1 Year or Less	0
1-5 Years	0
5-10 Years	48,177
After 10 Years	15,552
Total debt securities held-to-maturity	63,729	67,435
Asset-backed securities
Amortized Cost:
1 Year or Less	0
1-5 Years	0
5-10 Years	37,394
After 10 Years	15,500
Amortized Cost	52,894	56,804
Fair Value:
1 Year or Less	0
1-5 Years	0
5-10 Years	37,777
After 10 Years	15,552
Total debt securities held-to-maturity	53,329	57,085
Corporate securities
Amortized Cost:
1 Year or Less	0
1-5 Years	0
5-10 Years	10,210
After 10 Years	0
Amortized Cost	10,210	10,259
Fair Value:
1 Year or Less	0
1-5 Years	0
5-10 Years	10,400
After 10 Years	0
Total debt securities held-to-maturity	$ 10,400	$ 10,350

Investment Securities - Summar

Investment Securities - Summary of Gross Unrealized Losses and Fair Value of Investments with Unrealized Losses (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	$ 520,245	$ 526,795
Less than 12 Months, Unrealized Losses	5,471	5,271
12 Months or More, Fair Value	30,992	42,786
12 Months or More, Unrealized Losses	396	641
Total, Fair Value	551,237	569,581
Total, Unrealized Losses	5,867	5,912
U.S. Government securities
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	61,849	43,958
Less than 12 Months, Unrealized Losses	334	465
12 Months or More, Fair Value	0	0
12 Months or More, Unrealized Losses	0	0
Total, Fair Value	61,849	43,958
Total, Unrealized Losses	334	465
States and political subdivisions
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	0	0
Less than 12 Months, Unrealized Losses	0	0
12 Months or More, Fair Value	0	0
12 Months or More, Unrealized Losses	0	0
Total, Fair Value	0	0
Total, Unrealized Losses	0	0
Residential mortgage-backed securities — nonagency
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	9,495	29,403
Less than 12 Months, Unrealized Losses	25	239
12 Months or More, Fair Value	22,052	23,991
12 Months or More, Unrealized Losses	255	400
Total, Fair Value	31,547	53,394
Total, Unrealized Losses	280	639
Residential mortgage-backed securities — agency
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	422,418	430,490
Less than 12 Months, Unrealized Losses	5,038	4,484
12 Months or More, Fair Value	8,940	18,795
12 Months or More, Unrealized Losses	141	241
Total, Fair Value	431,358	449,285
Total, Unrealized Losses	5,179	4,725
Corporate securities
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	26,483	22,944
Less than 12 Months, Unrealized Losses	74	83
12 Months or More, Fair Value	0	0
12 Months or More, Unrealized Losses	0	0
Total, Fair Value	26,483	22,944
Total, Unrealized Losses	$ 74	$ 83

Investment Securities - Held47

Investment Securities - Held-to-maturity Securities, Continuous Unrealized Loss Position (Details) $ in Thousands	Dec. 31, 2016USD ($)
Schedule of Held-to-maturity Securities [Line Items]
Less than 12 months, Fair Value	$ 6,486
Less than 12 months, Unrealized Losses	14
12 Months or More, Fair Value	0
12 Months or More, Unrealized Losses	0
Total, Fair Value	6,486
Total, Unrealized Losses	14
Asset-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Less than 12 months, Fair Value	6,486
Less than 12 months, Unrealized Losses	14
12 Months or More, Fair Value	0
12 Months or More, Unrealized Losses	0
Total, Fair Value	6,486
Total, Unrealized Losses	$ 14

Investment Securities - Gains

Investment Securities - Gains and Losses on Investment Securities Available-for-Sale (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Investments, Debt and Equity Securities [Abstract]
Proceeds from sales and calls	$ 21,942	$ 41,979	$ 64,778	$ 64,879
Gross gains on sales and calls	89	396	118	409
Gross losses on sales and calls	(76)	0	(93)	0
Net realized gains on sales and calls	$ 13	$ 396	$ 25	$ 409

Investment Securities - Narrat

Investment Securities - Narrative (Details) $ in Millions	Jun. 30, 2017USD ($)investment_security	Dec. 31, 2016USD ($)
Investments, Debt and Equity Securities [Abstract]
Number of investments in unrealized loss position (investment securities) | investment_security	135
Available-for-sale securities pledged as collateral | $	$ 276.4	$ 368.3

Loans - Summary (Details)

Loans - Summary (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015
Loans and Leases Receivable Disclosure [Line Items]
Loans	$ 2,881,000		$ 2,814,572
Allowance for loan and lease losses	(27,988)	$ (26,976)	(26,598)	$ (27,599)	$ (30,345)	$ (29,075)
Loans, net	2,853,012		2,787,974
Total commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Loans	1,640,251		1,592,826
Total commercial real estate | Construction, land & land development
Loans and Leases Receivable Disclosure [Line Items]
Loans	461,497		567,763
Total commercial real estate | Other commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Loans	1,178,754		1,025,063
Residential real estate | Real estate
Loans and Leases Receivable Disclosure [Line Items]
Loans	330,717		343,398
Owner-occupied real estate | Real estate
Loans and Leases Receivable Disclosure [Line Items]
Loans	382,337		395,863
Commercial, financial & agricultural
Loans and Leases Receivable Disclosure [Line Items]
Loans	390,900		368,120
Leases
Loans and Leases Receivable Disclosure [Line Items]
Loans	73,103		71,724
Consumer
Loans and Leases Receivable Disclosure [Line Items]
Loans	$ 63,692		$ 42,641

Loans - Organic (Details)

Loans - Organic (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015
Loans
Loans	$ 2,881,000		$ 2,814,572
Allowance for loan and lease losses	(27,988)	$ (26,976)	(26,598)	$ (27,599)	$ (30,345)	$ (29,075)
Loans, net	2,853,012		2,787,974
Net deferred loan fees	9,400		7,000
Total commercial real estate
Loans
Loans	1,640,251		1,592,826
Total commercial real estate | Construction, land & land development
Loans
Loans	461,497		567,763
Total commercial real estate | Other commercial real estate
Loans
Loans	1,178,754		1,025,063
Residential real estate | Real estate
Loans
Loans	330,717		343,398
Owner-occupied real estate | Real estate
Loans
Loans	382,337		395,863
Commercial, financial & agricultural
Loans
Loans	390,900		368,120
Leases
Loans
Loans	73,103		71,724
Consumer
Loans
Loans	63,692		42,641
Organic Loans
Loans
Loans	2,275,471		2,090,564
Allowance for loan and lease losses	(22,560)	(21,885)	(21,086)	(22,008)	(22,626)	(21,224)
Loans, net	2,252,911		2,069,478
Organic Loans | Total commercial real estate
Loans
Loans	1,374,319		1,254,808
Allowance for loan and lease losses	(13,337)	(12,112)	(11,767)	(12,943)	(14,292)	(13,607)
Organic Loans | Total commercial real estate | Construction, land & land development
Loans
Loans	413,557		500,018
Organic Loans | Total commercial real estate | Other commercial real estate
Loans
Loans	960,762		754,790
Organic Loans | Residential real estate
Loans
Allowance for loan and lease losses	(1,841)	(1,666)	(1,786)	(1,890)	(1,967)	(2,053)
Organic Loans | Residential real estate | Real estate
Loans
Loans	167,755		144,295
Organic Loans | Owner-occupied real estate
Loans
Allowance for loan and lease losses	(2,036)	(2,108)	(2,239)	(1,982)	(1,931)	(1,920)
Organic Loans | Owner-occupied real estate | Real estate
Loans
Loans	244,637		256,317
Organic Loans | Commercial, financial & agricultural
Loans
Loans	355,629		327,381
Allowance for loan and lease losses	(3,663)	(4,514)	(4,093)	(3,834)	(2,918)	(2,509)
Organic Loans | Leases
Loans
Loans	73,103		71,724
Allowance for loan and lease losses	(825)	(710)	(655)	(881)	(1,045)	(865)
Organic Loans | Consumer
Loans
Loans	60,028		36,039
Allowance for loan and lease losses	$ (858)	$ (775)	$ (546)	$ (478)	$ (473)	$ (270)

Loans - Purchased Non-Credit I

Loans - Purchased Non-Credit Impaired (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015
Loans
Loans	$ 2,881,000		$ 2,814,572
Allowance for loan and lease losses	(27,988)	$ (26,976)	(26,598)	$ (27,599)	$ (30,345)	$ (29,075)
Loans, net	2,853,012		2,787,974
Net discounts	6,800		10,500
Purchased Non-Credit Impaired Loans
Loans
Loans	469,931		563,362
Allowance for loan and lease losses	(667)	(491)	(439)	(158)	(166)	(53)
Loans, net	469,264		562,923
Total commercial real estate
Loans
Loans	1,640,251		1,592,826
Total commercial real estate | Purchased Non-Credit Impaired Loans
Loans
Loans	202,997		260,739
Allowance for loan and lease losses	(145)	(239)	(88)	0	0	0
Residential real estate | Purchased Non-Credit Impaired Loans
Loans
Allowance for loan and lease losses	(342)	(175)	(72)	0	0	(53)
Owner-occupied real estate | Purchased Non-Credit Impaired Loans
Loans
Allowance for loan and lease losses	(152)	(76)	(44)	0	0	0
Commercial, financial & agricultural
Loans
Loans	390,900		368,120
Commercial, financial & agricultural | Purchased Non-Credit Impaired Loans
Loans
Loans	31,654		36,206
Allowance for loan and lease losses	(26)	0	(235)	(158)	(166)	0
Consumer
Loans
Loans	63,692		42,641
Consumer | Purchased Non-Credit Impaired Loans
Loans
Loans	3,393		6,255
Allowance for loan and lease losses	(2)	$ (1)	0	$ 0	$ 0	$ 0
Construction, land & land development | Total commercial real estate
Loans
Loans	461,497		567,763
Construction, land & land development | Total commercial real estate | Purchased Non-Credit Impaired Loans
Loans
Loans	31,083		51,208
Other commercial real estate | Total commercial real estate
Loans
Loans	1,178,754		1,025,063
Other commercial real estate | Total commercial real estate | Purchased Non-Credit Impaired Loans
Loans
Loans	171,914		209,531
Real estate | Residential real estate
Loans
Loans	330,717		343,398
Real estate | Residential real estate | Purchased Non-Credit Impaired Loans
Loans
Loans	117,449		144,596
Real estate | Owner-occupied real estate
Loans
Loans	382,337		395,863
Real estate | Owner-occupied real estate | Purchased Non-Credit Impaired Loans
Loans
Loans	$ 114,438		$ 115,566

Loans - Purchased Credit Impai

Loans - Purchased Credit Impaired (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015
Loans
Loans	$ 2,881,000		$ 2,814,572
Allowance for loan and lease losses	(27,988)	$ (26,976)	(26,598)	$ (27,599)	$ (30,345)	$ (29,075)
Loans, net	2,853,012		2,787,974
Purchased Credit Impaired Loans
Loans
Loans	135,598		160,646
Allowance for loan and lease losses	(4,761)	(4,600)	(5,073)	(5,433)	(7,553)	(7,798)
Loans, net	130,837		155,573
Total commercial real estate
Loans
Loans	1,640,251		1,592,826
Total commercial real estate | Purchased Credit Impaired Loans
Loans
Loans	62,935		77,279
Allowance for loan and lease losses	(2,131)	(2,073)	(2,183)	(2,834)	(3,430)	(3,388)
Residential real estate | Purchased Credit Impaired Loans
Loans
Allowance for loan and lease losses	(968)	(959)	(1,196)	(1,025)	(1,643)	(1,893)
Owner-occupied real estate | Purchased Credit Impaired Loans
Loans
Allowance for loan and lease losses	(1,611)	(1,531)	(1,655)	(1,502)	(2,422)	(2,449)
Commercial, financial & agricultural
Loans
Loans	390,900		368,120
Commercial, financial & agricultural | Purchased Credit Impaired Loans
Loans
Loans	3,617		4,533
Allowance for loan and lease losses	(37)	(37)	(38)	(69)	(50)	(60)
Consumer
Loans
Loans	63,692		42,641
Consumer | Purchased Credit Impaired Loans
Loans
Loans	271		347
Allowance for loan and lease losses	(14)	$ 0	(1)	$ (3)	$ (8)	$ (8)
Construction, land & land development | Total commercial real estate
Loans
Loans	461,497		567,763
Construction, land & land development | Total commercial real estate | Purchased Credit Impaired Loans
Loans
Loans	16,857		16,537
Other commercial real estate | Total commercial real estate
Loans
Loans	1,178,754		1,025,063
Other commercial real estate | Total commercial real estate | Purchased Credit Impaired Loans
Loans
Loans	46,078		60,742
Real estate | Residential real estate
Loans
Loans	330,717		343,398
Real estate | Residential real estate | Purchased Credit Impaired Loans
Loans
Loans	45,513		54,507
Real estate | Owner-occupied real estate
Loans
Loans	382,337		395,863
Real estate | Owner-occupied real estate | Purchased Credit Impaired Loans
Loans
Loans	$ 23,262		$ 23,980

Loans - Changes in Carrying Va

Loans - Changes in Carrying Values of Purchased Credit Impaired Loans (Details) - Purchased Credit Impaired Loans - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Changes in Carrying Value of Purchased Credit Impaired Loans
Balance, beginning of period	$ 149,560	$ 132,242	$ 155,573	$ 137,777
Accretion of fair value discounts	9,228	13,961	16,905	23,704
Fair value of acquired loans	0	0	0	1,300
Reductions in principal balances resulting from repayments, write-offs and foreclosures	(27,790)	(19,223)	(41,953)	(36,046)
Change in the allowance for loan and lease losses on purchased credit impaired loans	(161)	2,120	312	2,365
Balance, end of period	$ 130,837	$ 129,100	$ 130,837	$ 129,100

Loans - Changes in Accretable

Loans - Changes in Accretable Discount (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Changes in Accretable Discount
Balance, beginning of period	$ 63,066	$ 85,828	$ 69,301	$ 86,100
Additions from acquisitions	0	0	0	1,648
Accretion	(9,228)	(13,961)	(16,905)	(23,704)
Transfers to accretable discounts and exit events, net	5,970	3,523	7,412	11,346
Balance, end of period	$ 59,808	$ 75,390	$ 59,808	$ 75,390

Loans - Narrative (Details)

Loans - Narrative (Details) - USD ($) $ in Billions	Jun. 30, 2017	Dec. 31, 2016
Receivables [Abstract]
Loans pledged as collateral	$ 2.6	$ 2.5

Allowance for Loan and Lease 57

Allowance for Loan and Lease Losses (ALLL) - Allowance for Loan Losses Rollforward (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of period	$ 26,976	$ 30,345	$ 26,598	$ 29,075
Charge-offs	(947)	(2,914)	(1,649)	(4,733)
Recoveries	114	162	192	3,385
Net (charge-offs) recoveries	(833)	(2,752)	(1,457)	(1,348)
Provision for loan and lease losses	1,845	6	2,847	(128)
Balance, end of period	27,988	27,599	27,988	27,599
Organic Loans
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of period	21,885	22,626	21,086	21,224
Charge-offs	(536)	(2,307)	(1,076)	(2,547)
Recoveries	113	54	190	150
Net (charge-offs) recoveries	(423)	(2,253)	(886)	(2,397)
Provision for loan and lease losses	1,098	1,635	2,360	3,181
Balance, end of period	22,560	22,008	22,560	22,008
Purchased Non-Credit Impaired Loans
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of period	491	166	439	53
Charge-offs	(197)	(1)	(245)	(64)
Recoveries	1	28	2	61
Net (charge-offs) recoveries	(196)	27	(243)	(3)
Provision for loan and lease losses	372	(35)	471	108
Balance, end of period	667	158	667	158
Purchased Credit Impaired Loans
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of period	4,600	7,553	5,073	7,798
Charge-offs	(214)	(606)	(328)	(2,122)
Recoveries	0	80	0	3,174
Net (charge-offs) recoveries	(214)	(526)	(328)	1,052
Provision for loan and lease losses	375	(1,594)	16	(3,417)
Balance, end of period	$ 4,761	$ 5,433	$ 4,761	$ 5,433

Allowance for Loan and Lease 58

Allowance for Loan and Lease Losses (ALLL) - Organic Loans (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of period	$ 26,976	$ 30,345	$ 26,598	$ 29,075
Charge-offs	(947)	(2,914)	(1,649)	(4,733)
Recoveries	114	162	192	3,385
Provision	1,845	6	2,847	(128)
Balance, end of period	27,988	27,599	27,988	27,599
Organic Loans
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of period	21,885	22,626	21,086	21,224
Charge-offs	(536)	(2,307)	(1,076)	(2,547)
Recoveries	113	54	190	150
Provision	1,098	1,635	2,360	3,181
Balance, end of period	22,560	22,008	22,560	22,008
Allowance attributable to loans, Individually evaluated for impairment	546		546		$ 787
Allowance attributable to loans, Collectively evaluated for impairment	22,014		22,014		20,299
Loans individually evaluated for impairment	1,422		1,422		6,234
Loans collectively evaluated for impairment	2,274,049		2,274,049		2,084,330
Total Loans	2,275,471		2,275,471		2,090,564
Total commercial real estate | Organic Loans
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of period	12,112	14,292	11,767	13,607
Charge-offs	(187)	(2,125)	(187)	(2,125)
Recoveries	0	0	0	0
Provision	1,412	776	1,757	1,461
Balance, end of period	13,337	12,943	13,337	12,943
Allowance attributable to loans, Individually evaluated for impairment	107		107		201
Allowance attributable to loans, Collectively evaluated for impairment	13,230		13,230		11,566
Loans individually evaluated for impairment	215		215		5,057
Loans collectively evaluated for impairment	1,374,104		1,374,104		1,249,751
Total Loans	1,374,319		1,374,319		1,254,808
Residential real estate | Organic Loans
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of period	1,666	1,967	1,786	2,053
Charge-offs	(25)	0	(48)	(28)
Recoveries	3	2	6	3
Provision	197	(79)	97	(138)
Balance, end of period	1,841	1,890	1,841	1,890
Allowance attributable to loans, Individually evaluated for impairment	327		327		413
Allowance attributable to loans, Collectively evaluated for impairment	1,514		1,514		1,373
Loans individually evaluated for impairment	654		654		825
Loans collectively evaluated for impairment	167,101		167,101		143,470
Total Loans	167,755		167,755		144,295
Owner-occupied real estate | Organic Loans
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of period	2,108	1,931	2,239	1,920
Charge-offs	0	0	0	0
Recoveries	0	44	0	44
Provision	(72)	7	(203)	18
Balance, end of period	2,036	1,982	2,036	1,982
Allowance attributable to loans, Individually evaluated for impairment	0		0		0
Allowance attributable to loans, Collectively evaluated for impairment	2,036		2,036		2,239
Loans individually evaluated for impairment	0		0		0
Loans collectively evaluated for impairment	244,637		244,637		256,317
Total Loans	244,637		244,637		256,317
Commercial, financial & agricultural | Organic Loans
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of period	4,514	2,918	4,093	2,509
Charge-offs	(82)	(77)	(142)	(164)
Recoveries	22	0	51	95
Provision	(791)	993	(339)	1,394
Balance, end of period	3,663	3,834	3,663	3,834
Allowance attributable to loans, Individually evaluated for impairment	93		93		146
Allowance attributable to loans, Collectively evaluated for impairment	3,570		3,570		3,947
Loans individually evaluated for impairment	515		515		298
Loans collectively evaluated for impairment	355,114		355,114		327,083
Total Loans	355,629		355,629		327,381
Leases | Organic Loans
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of period	710	1,045	655	865
Charge-offs	(135)	(105)	(499)	(215)
Recoveries	68	7	109	7
Provision	182	(66)	560	224
Balance, end of period	825	881	825	881
Allowance attributable to loans, Individually evaluated for impairment	0		0		0
Allowance attributable to loans, Collectively evaluated for impairment	825		825		655
Loans individually evaluated for impairment	0		0		0
Loans collectively evaluated for impairment	73,103		73,103		71,724
Total Loans	73,103		73,103		71,724
Consumer | Organic Loans
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of period	775	473	546	270
Charge-offs	(107)	0	(200)	(15)
Recoveries	20	1	24	1
Provision	170	4	488	222
Balance, end of period	858	$ 478	858	$ 478
Allowance attributable to loans, Individually evaluated for impairment	19		19		27
Allowance attributable to loans, Collectively evaluated for impairment	839		839		519
Loans individually evaluated for impairment	38		38		54
Loans collectively evaluated for impairment	59,990		59,990		35,985
Total Loans	$ 60,028		$ 60,028		$ 36,039

Allowance for Loan and Lease 59

Allowance for Loan and Lease Losses (ALLL) - Purchased Non-Credit Impaired Loans (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of period	$ 26,976	$ 30,345	$ 26,598	$ 29,075
Charge-offs	(947)	(2,914)	(1,649)	(4,733)
Recoveries	114	162	192	3,385
Provision	1,845	6	2,847	(128)
Balance, end of period	27,988	27,599	27,988	27,599
Purchased Non-Credit Impaired Loans
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of period	491	166	439	53
Charge-offs	(197)	(1)	(245)	(64)
Recoveries	1	28	2	61
Provision	372	(35)	471	108
Balance, end of period	667	158	667	158
Allowance attributable to loans, Individually evaluated for impairment	26		26		$ 44
Allowance attributable to loans, Collectively evaluated for impairment	641		641		395
Loans individually evaluated for impairment	5,177		5,177		3,381
Loans collectively evaluated for impairment	464,754		464,754		559,981
Total Loans	469,931		469,931		563,362
Commercial real estate | Purchased Non-Credit Impaired Loans
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of period	239	0	88	0
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision	(94)	0	57	0
Balance, end of period	145	0	145	0
Allowance attributable to loans, Individually evaluated for impairment	0		0		0
Allowance attributable to loans, Collectively evaluated for impairment	145		145		88
Loans individually evaluated for impairment	49		49		56
Loans collectively evaluated for impairment	202,948		202,948		260,683
Total Loans	202,997		202,997		260,739
Residential real estate | Purchased Non-Credit Impaired Loans
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of period	175	0	72	53
Charge-offs	0	0	0	(62)
Recoveries	0	28	0	44
Provision	167	(28)	270	(35)
Balance, end of period	342	0	342	0
Allowance attributable to loans, Individually evaluated for impairment	0		0		0
Allowance attributable to loans, Collectively evaluated for impairment	342		342		72
Loans individually evaluated for impairment	359		359		320
Loans collectively evaluated for impairment	117,090		117,090		144,276
Total Loans	117,449		117,449		144,596
Owner-occupied real estate | Purchased Non-Credit Impaired Loans
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of period	76	0	44	0
Charge-offs	(80)	0	(80)	0
Recoveries	0	0	0	0
Provision	156	0	188	0
Balance, end of period	152	0	152	0
Allowance attributable to loans, Individually evaluated for impairment	0		0		44
Allowance attributable to loans, Collectively evaluated for impairment	152		152		0
Loans individually evaluated for impairment	2,752		2,752		1,875
Loans collectively evaluated for impairment	111,686		111,686		113,691
Total Loans	114,438		114,438		115,566
Commercial, financial & agricultural | Purchased Non-Credit Impaired Loans
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of period	0	166	235	0
Charge-offs	(115)	(1)	(160)	(1)
Recoveries	0	0	0	0
Provision	141	(7)	(49)	159
Balance, end of period	26	158	26	158
Allowance attributable to loans, Individually evaluated for impairment	26		26		0
Allowance attributable to loans, Collectively evaluated for impairment	0		0		235
Loans individually evaluated for impairment	2,005		2,005		1,128
Loans collectively evaluated for impairment	29,649		29,649		35,078
Total Loans	31,654		31,654		36,206
Consumer | Purchased Non-Credit Impaired Loans
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of period	1	0	0	0
Charge-offs	(2)	0	(5)	(1)
Recoveries	1	0	2	17
Provision	2	0	5	(16)
Balance, end of period	2	$ 0	2	$ 0
Allowance attributable to loans, Individually evaluated for impairment	0		0		0
Allowance attributable to loans, Collectively evaluated for impairment	2		2		0
Loans individually evaluated for impairment	12		12		2
Loans collectively evaluated for impairment	3,381		3,381		6,253
Total Loans	$ 3,393		$ 3,393		$ 6,255

Allowance for Loan and Lease 60

Allowance for Loan and Lease Losses (ALLL) - Purchased Credit Impaired Loans (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of period	$ 26,976	$ 30,345	$ 26,598	$ 29,075
Charge-offs	(947)	(2,914)	(1,649)	(4,733)
Recoveries	114	162	192	3,385
Provision for loan and lease losses	1,845	6	2,847	(128)
Balance, end of period	27,988	27,599	27,988	27,599
Purchased Credit Impaired Loans
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of period	4,600	7,553	5,073	7,798
Charge-offs	(214)	(606)	(328)	(2,122)
Recoveries	0	80	0	3,174
Provision for loan and lease losses	375	(1,594)	16	(3,417)
Balance, end of period	4,761	5,433	4,761	5,433
Allowance attributable to loans, Individually evaluated for impairment	2,305		2,305		$ 2,389
Allowance attributable to loans, Collectively evaluated for impairment	2,456		2,456		2,684
Loans individually evaluated for impairment	30,526		30,526		39,754
Loans collectively evaluated for impairment	105,072		105,072		120,892
Total Loans	135,598		135,598		160,646
Total commercial real estate | Purchased Credit Impaired Loans
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of period	2,073	3,430	2,183	3,388
Charge-offs	(160)	(225)	(233)	(733)
Recoveries	0	72	0	2,281
Provision for loan and lease losses	218	(443)	181	(2,102)
Balance, end of period	2,131	2,834	2,131	2,834
Allowance attributable to loans, Individually evaluated for impairment	807		807		760
Allowance attributable to loans, Collectively evaluated for impairment	1,324		1,324		1,423
Loans individually evaluated for impairment	20,082		20,082		29,387
Loans collectively evaluated for impairment	42,853		42,853		47,892
Total Loans	62,935		62,935		77,279
Residential real estate | Purchased Credit Impaired Loans
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of period	959	1,643	1,196	1,893
Charge-offs	(38)	(377)	(42)	(894)
Recoveries	0	6	0	400
Provision for loan and lease losses	47	(247)	(186)	(374)
Balance, end of period	968	1,025	968	1,025
Allowance attributable to loans, Individually evaluated for impairment	135		135		156
Allowance attributable to loans, Collectively evaluated for impairment	833		833		1,040
Loans individually evaluated for impairment	1,864		1,864		1,897
Loans collectively evaluated for impairment	43,649		43,649		52,610
Total Loans	45,513		45,513		54,507
Owner-occupied real estate | Purchased Credit Impaired Loans
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of period	1,531	2,422	1,655	2,449
Charge-offs	0	0	(36)	(211)
Recoveries	0	0	0	207
Provision for loan and lease losses	80	(920)	(8)	(943)
Balance, end of period	1,611	1,502	1,611	1,502
Allowance attributable to loans, Individually evaluated for impairment	1,357		1,357		1,471
Allowance attributable to loans, Collectively evaluated for impairment	254		254		184
Loans individually evaluated for impairment	8,509		8,509		8,376
Loans collectively evaluated for impairment	14,753		14,753		15,604
Total Loans	23,262		23,262		23,980
Commercial, financial & agricultural | Purchased Credit Impaired Loans
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of period	37	50	38	60
Charge-offs	(15)	0	(16)	(228)
Recoveries	0	2	0	233
Provision for loan and lease losses	15	17	15	4
Balance, end of period	37	69	37	69
Allowance attributable to loans, Individually evaluated for impairment	6		6		2
Allowance attributable to loans, Collectively evaluated for impairment	31		31		36
Loans individually evaluated for impairment	69		69		86
Loans collectively evaluated for impairment	3,548		3,548		4,447
Total Loans	3,617		3,617		4,533
Consumer | Purchased Credit Impaired Loans
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of period	0	8	1	8
Charge-offs	(1)	(4)	(1)	(56)
Recoveries	0	0	0	53
Provision for loan and lease losses	15	(1)	14	(2)
Balance, end of period	14	$ 3	14	$ 3
Allowance attributable to loans, Individually evaluated for impairment	0		0		0
Allowance attributable to loans, Collectively evaluated for impairment	14		14		1
Loans individually evaluated for impairment	2		2		8
Loans collectively evaluated for impairment	269		269		339
Total Loans	$ 271		$ 271		$ 347

Allowance for Loan and Lease 61

Allowance for Loan and Lease Losses (ALLL) - Organic Impaired Loans (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance with No Related Allowance	$ 5,355		$ 5,355		$ 6,539
Recorded Investment with No Related Allowance	4,779		4,779		4,627
Unpaid Principal Balance with Related Allowance	1,933		1,933		7,237
Recorded Investment with Related Allowance	1,820		1,820		4,988
Impaired financing receivable, related allowance	572		572		831
Unpaid Principal Balance	7,288		7,288		13,776
Recorded Investment	6,599		6,599		9,615
Average Recorded Investment	10,069	$ 9,617	11,018	$ 11,694
Interest Income Recognized	1	19	1	27
Average recorded investment for TDRs	3,200	5,800	4,100	7,700
Interest income recognized on troubled debt restructurings	0	16	0	24
SBA Loans
Financing Receivable, Impaired [Line Items]
Recorded Investment	4,400		4,400		3,000
Total commercial real estate
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance with No Related Allowance	49		49		4,621
Recorded Investment with No Related Allowance	49		49		2,989
Unpaid Principal Balance with Related Allowance	217		217		4,277
Recorded Investment with Related Allowance	215		215		2,124
Impaired financing receivable, related allowance	107		107		201
Average Recorded Investment	3,509	6,071	4,350	7,166
Interest Income Recognized	0	0	0	0
Residential real estate
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance with No Related Allowance	368		368		388
Recorded Investment with No Related Allowance	359		359		320
Unpaid Principal Balance with Related Allowance	714		714		891
Recorded Investment with Related Allowance	654		654		825
Impaired financing receivable, related allowance	327		327		413
Average Recorded Investment	1,018	1,803	1,031	1,868
Interest Income Recognized	0	0	0	0
Owner-occupied real estate
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance with No Related Allowance	2,865		2,865		193
Recorded Investment with No Related Allowance	2,752		2,752		188
Unpaid Principal Balance with Related Allowance	0		0		1,706
Recorded Investment with Related Allowance	0		0		1,687
Impaired financing receivable, related allowance	0		0		44
Average Recorded Investment	2,788	0	2,824	380
Interest Income Recognized	0	3	0	3
Commercial, financial & agricultural
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance with No Related Allowance	2,053		2,053		1,335
Recorded Investment with No Related Allowance	1,607		1,607		1,128
Unpaid Principal Balance with Related Allowance	940		940		308
Recorded Investment with Related Allowance	913		913		298
Impaired financing receivable, related allowance	119		119		146
Average Recorded Investment	2,682	1,709	2,736	2,242
Interest Income Recognized	1	16	1	24
Consumer
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance with No Related Allowance	20		20		2
Recorded Investment with No Related Allowance	12		12		2
Unpaid Principal Balance with Related Allowance	62		62		55
Recorded Investment with Related Allowance	38		38		54
Impaired financing receivable, related allowance	19		19		27
Average Recorded Investment	72	34	77	38
Interest Income Recognized	0	0	0	0
Construction, land & land development | Total commercial real estate
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance with No Related Allowance	0		0		4,565
Recorded Investment with No Related Allowance	0		0		2,933
Unpaid Principal Balance with Related Allowance	217		217		4,277
Recorded Investment with Related Allowance	215		215		2,124
Impaired financing receivable, related allowance	107		107		201
Average Recorded Investment	3,458	5,832	4,297	6,845
Interest Income Recognized	0	0	0	0
Other commercial real estate | Total commercial real estate
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance with No Related Allowance	49		49		56
Recorded Investment with No Related Allowance	49		49		56
Unpaid Principal Balance with Related Allowance	0		0		0
Recorded Investment with Related Allowance	0		0		0
Impaired financing receivable, related allowance	0		0		$ 0
Average Recorded Investment	51	239	53	321
Interest Income Recognized	$ 0	$ 0	$ 0	$ 0

Allowance for Loan and Lease 62

Allowance for Loan and Lease Losses (ALLL) - Organic Nonaccrual Loans (Details) - Organic and Purchased Non-Credit Impaired Loans - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Financing Receivable, Impaired [Line Items]
Recorded Investment, Nonaccrual Loans	$ 6,563	$ 9,615
Total commercial real estate
Financing Receivable, Impaired [Line Items]
Recorded Investment, Nonaccrual Loans	264	5,113
Total commercial real estate | Construction, land & land development
Financing Receivable, Impaired [Line Items]
Recorded Investment, Nonaccrual Loans	215	5,057
Total commercial real estate | Other commercial real estate
Financing Receivable, Impaired [Line Items]
Recorded Investment, Nonaccrual Loans	49	56
Residential real estate
Financing Receivable, Impaired [Line Items]
Recorded Investment, Nonaccrual Loans	1,013	1,146
Owner-occupied real estate
Financing Receivable, Impaired [Line Items]
Recorded Investment, Nonaccrual Loans	2,752	1,874
Commercial, financial & agricultural
Financing Receivable, Impaired [Line Items]
Recorded Investment, Nonaccrual Loans	2,484	1,426
Consumer
Financing Receivable, Impaired [Line Items]
Recorded Investment, Nonaccrual Loans	$ 50	$ 56

Allowance for Loan and Lease 63

Allowance for Loan and Lease Losses (ALLL) - Past Due Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	$ 2,881,000	$ 2,814,572
Organic Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,957	1,287
Current	2,273,514	2,089,277
Total Loans	2,275,471	2,090,564
Loans greater than 90 Days and Accruing	0	0
Organic Loans | Total commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	215	61
Current	1,374,104	1,254,747
Total Loans	1,374,319	1,254,808
Loans greater than 90 Days and Accruing	0	0
Organic Loans | Total commercial real estate | Construction, land & land development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	215	61
Current	413,342	499,957
Total Loans	413,557	500,018
Loans greater than 90 Days and Accruing	0	0
Organic Loans | Total commercial real estate | Other commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Current	960,762	754,790
Total Loans	960,762	754,790
Loans greater than 90 Days and Accruing	0	0
Organic Loans | Residential real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	347	275
Current	167,408	144,020
Total Loans	167,755	144,295
Loans greater than 90 Days and Accruing	0	0
Organic Loans | Owner-occupied real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	622	40
Current	244,015	256,277
Total Loans	244,637	256,317
Loans greater than 90 Days and Accruing	0	0
Organic Loans | Commercial, financial & agricultural
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	661	530
Current	354,968	326,851
Total Loans	355,629	327,381
Loans greater than 90 Days and Accruing	0	0
Organic Loans | Leases
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Current	73,103	71,724
Total Loans	73,103	71,724
Loans greater than 90 Days and Accruing	0	0
Organic Loans | Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	112	381
Current	59,916	35,658
Total Loans	60,028	36,039
Loans greater than 90 Days and Accruing	0	0
Purchased Non-Credit Impaired Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	4,948	3,817
Current	464,983	559,545
Total Loans	469,931	563,362
Loans greater than 90 Days and Accruing	0	0
Purchased Non-Credit Impaired Loans | Total commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	50	568
Current	202,947	260,171
Total Loans	202,997	260,739
Loans greater than 90 Days and Accruing	0	0
Purchased Non-Credit Impaired Loans | Total commercial real estate | Construction, land & land development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	495
Current	31,083	50,713
Total Loans	31,083	51,208
Loans greater than 90 Days and Accruing	0	0
Purchased Non-Credit Impaired Loans | Total commercial real estate | Other commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	50	73
Current	171,864	209,458
Total Loans	171,914	209,531
Loans greater than 90 Days and Accruing	0	0
Purchased Non-Credit Impaired Loans | Residential real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	551	439
Current	116,898	144,157
Total Loans	117,449	144,596
Loans greater than 90 Days and Accruing	0	0
Purchased Non-Credit Impaired Loans | Owner-occupied real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,743	2,074
Current	111,695	113,492
Total Loans	114,438	115,566
Loans greater than 90 Days and Accruing	0	0
Purchased Non-Credit Impaired Loans | Commercial, financial & agricultural
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,598	696
Current	30,056	35,510
Total Loans	31,654	36,206
Loans greater than 90 Days and Accruing	0	0
Purchased Non-Credit Impaired Loans | Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	6	40
Current	3,387	6,215
Total Loans	3,393	6,255
Loans greater than 90 Days and Accruing	0	0
Purchased Credit Impaired Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	13,916	14,329
Current	121,682	146,317
Total Loans	135,598	160,646
Purchased Credit Impaired Loans | Total commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	6,389	6,069
Current	56,546	71,210
Total Loans	62,935	77,279
Purchased Credit Impaired Loans | Total commercial real estate | Construction, land & land development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,957	2,575
Current	14,900	13,962
Total Loans	16,857	16,537
Purchased Credit Impaired Loans | Total commercial real estate | Other commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	4,432	3,494
Current	41,646	57,248
Total Loans	46,078	60,742
Purchased Credit Impaired Loans | Residential real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	4,713	3,997
Current	40,800	50,510
Total Loans	45,513	54,507
Purchased Credit Impaired Loans | Owner-occupied real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,738	4,168
Current	20,524	19,812
Total Loans	23,262	23,980
Purchased Credit Impaired Loans | Commercial, financial & agricultural
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	58	90
Current	3,559	4,443
Total Loans	3,617	4,533
Purchased Credit Impaired Loans | Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	18	5
Current	253	342
Total Loans	271	347
30 - 89 Days Past Due | Organic Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,171	843
30 - 89 Days Past Due | Organic Loans | Total commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	49
30 - 89 Days Past Due | Organic Loans | Total commercial real estate | Construction, land & land development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	49
30 - 89 Days Past Due | Organic Loans | Total commercial real estate | Other commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
30 - 89 Days Past Due | Organic Loans | Residential real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	248	157
30 - 89 Days Past Due | Organic Loans | Owner-occupied real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	622	40
30 - 89 Days Past Due | Organic Loans | Commercial, financial & agricultural
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	189	247
30 - 89 Days Past Due | Organic Loans | Leases
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
30 - 89 Days Past Due | Organic Loans | Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	112	350
30 - 89 Days Past Due | Purchased Non-Credit Impaired Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,515	1,355
30 - 89 Days Past Due | Purchased Non-Credit Impaired Loans | Total commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	512
30 - 89 Days Past Due | Purchased Non-Credit Impaired Loans | Total commercial real estate | Construction, land & land development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	495
30 - 89 Days Past Due | Purchased Non-Credit Impaired Loans | Total commercial real estate | Other commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	17
30 - 89 Days Past Due | Purchased Non-Credit Impaired Loans | Residential real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	458	274
30 - 89 Days Past Due | Purchased Non-Credit Impaired Loans | Owner-occupied real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	164	387
30 - 89 Days Past Due | Purchased Non-Credit Impaired Loans | Commercial, financial & agricultural
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	892	144
30 - 89 Days Past Due | Purchased Non-Credit Impaired Loans | Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1	38
30 - 89 Days Past Due | Purchased Credit Impaired Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3,353	2,968
30 - 89 Days Past Due | Purchased Credit Impaired Loans | Total commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	705	1,068
30 - 89 Days Past Due | Purchased Credit Impaired Loans | Total commercial real estate | Construction, land & land development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	48	722
30 - 89 Days Past Due | Purchased Credit Impaired Loans | Total commercial real estate | Other commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	657	346
30 - 89 Days Past Due | Purchased Credit Impaired Loans | Residential real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,462	1,210
30 - 89 Days Past Due | Purchased Credit Impaired Loans | Owner-occupied real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	119	661
30 - 89 Days Past Due | Purchased Credit Impaired Loans | Commercial, financial & agricultural
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	52	29
30 - 89 Days Past Due | Purchased Credit Impaired Loans | Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	15	0
90 Days or Greater Past Due | Organic Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	786	444
90 Days or Greater Past Due | Organic Loans | Total commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	215	12
90 Days or Greater Past Due | Organic Loans | Total commercial real estate | Construction, land & land development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	215	12
90 Days or Greater Past Due | Organic Loans | Total commercial real estate | Other commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
90 Days or Greater Past Due | Organic Loans | Residential real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	99	118
90 Days or Greater Past Due | Organic Loans | Owner-occupied real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
90 Days or Greater Past Due | Organic Loans | Commercial, financial & agricultural
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	472	283
90 Days or Greater Past Due | Organic Loans | Leases
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
90 Days or Greater Past Due | Organic Loans | Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	31
90 Days or Greater Past Due | Purchased Non-Credit Impaired Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3,433	2,462
90 Days or Greater Past Due | Purchased Non-Credit Impaired Loans | Total commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	50	56
90 Days or Greater Past Due | Purchased Non-Credit Impaired Loans | Total commercial real estate | Construction, land & land development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
90 Days or Greater Past Due | Purchased Non-Credit Impaired Loans | Total commercial real estate | Other commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	50	56
90 Days or Greater Past Due | Purchased Non-Credit Impaired Loans | Residential real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	93	165
90 Days or Greater Past Due | Purchased Non-Credit Impaired Loans | Owner-occupied real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,579	1,687
90 Days or Greater Past Due | Purchased Non-Credit Impaired Loans | Commercial, financial & agricultural
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	706	552
90 Days or Greater Past Due | Purchased Non-Credit Impaired Loans | Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	5	2
90 Days or Greater Past Due | Purchased Credit Impaired Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	10,563	11,361
90 Days or Greater Past Due | Purchased Credit Impaired Loans | Total commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	5,684	5,001
90 Days or Greater Past Due | Purchased Credit Impaired Loans | Total commercial real estate | Construction, land & land development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,909	1,853
90 Days or Greater Past Due | Purchased Credit Impaired Loans | Total commercial real estate | Other commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3,775	3,148
90 Days or Greater Past Due | Purchased Credit Impaired Loans | Residential real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,251	2,787
90 Days or Greater Past Due | Purchased Credit Impaired Loans | Owner-occupied real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,619	3,507
90 Days or Greater Past Due | Purchased Credit Impaired Loans | Commercial, financial & agricultural
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	6	61
90 Days or Greater Past Due | Purchased Credit Impaired Loans | Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	$ 3	$ 5

Allowance for Loan and Lease 64

Allowance for Loan and Lease Losses (ALLL) - Credit Quality of Organic Loans (Details) - Organic Loans - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	$ 2,275,471	$ 2,090,564
Pass
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	2,178,838	1,988,655
Watch
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	91,052	89,292
OAEM
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	2,581	4,760
Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	3,000	7,856
Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0	1
Total commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	1,374,319	1,254,808
Total commercial real estate | Construction, land & land development
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	413,557	500,018
Total commercial real estate | Other commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	960,762	754,790
Total commercial real estate | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	1,310,454	1,189,655
Total commercial real estate | Pass | Construction, land & land development
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	382,550	470,686
Total commercial real estate | Pass | Other commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	927,904	718,969
Total commercial real estate | Watch
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	63,464	59,999
Total commercial real estate | Watch | Construction, land & land development
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	30,606	24,178
Total commercial real estate | Watch | Other commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	32,858	35,821
Total commercial real estate | OAEM
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	88	97
Total commercial real estate | OAEM | Construction, land & land development
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	88	97
Total commercial real estate | OAEM | Other commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0	0
Total commercial real estate | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	313	5,057
Total commercial real estate | Substandard | Construction, land & land development
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	313	5,057
Total commercial real estate | Substandard | Other commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0	0
Total commercial real estate | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0	0
Total commercial real estate | Doubtful | Construction, land & land development
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0	0
Total commercial real estate | Doubtful | Other commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0	0
Residential real estate
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	167,755	144,295
Residential real estate | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	162,901	139,393
Residential real estate | Watch
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	3,307	2,484
Residential real estate | OAEM
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	118	460
Residential real estate | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	1,429	1,958
Residential real estate | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0	0
Owner-occupied real estate
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	244,637	256,317
Owner-occupied real estate | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	226,007	237,753
Owner-occupied real estate | Watch
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	16,387	14,967
Owner-occupied real estate | OAEM
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	1,631	3,577
Owner-occupied real estate | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	612	20
Owner-occupied real estate | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0	0
Commercial, financial & agricultural
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	355,629	327,381
Commercial, financial & agricultural | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	353,593	325,161
Commercial, financial & agricultural | Watch
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	770	920
Commercial, financial & agricultural | OAEM
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	744	624
Commercial, financial & agricultural | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	522	676
Commercial, financial & agricultural | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0	0
Leases
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	73,103	71,724
Leases | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	66,042	60,849
Leases | Watch
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	7,061	10,875
Leases | OAEM
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0	0
Leases | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0	0
Leases | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0	0
Consumer
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	60,028	36,039
Consumer | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	59,841	35,844
Consumer | Watch
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	63	47
Consumer | OAEM
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0	2
Consumer | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	124	145
Consumer | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	$ 0	$ 1

Allowance for Loan and Lease 65

Allowance for Loan and Lease Losses (ALLL) - Credit Quality of Purchased Non-Credit Impaired Loans (Details) - Purchased Non-Credit Impaired Loans - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Financing Receivable [Line Items]
Loans Receivable	$ 469,931	$ 563,362
Pass
Financing Receivable [Line Items]
Loans Receivable	453,252	547,892
Watch
Financing Receivable [Line Items]
Loans Receivable	10,088	9,311
OAEM
Financing Receivable [Line Items]
Loans Receivable	787	2,492
Substandard
Financing Receivable [Line Items]
Loans Receivable	5,804	3,667
Doubtful
Financing Receivable [Line Items]
Loans Receivable	0	0
Total commercial real estate
Financing Receivable [Line Items]
Loans Receivable	202,997	260,739
Total commercial real estate | Pass
Financing Receivable [Line Items]
Loans Receivable	199,629	257,723
Total commercial real estate | Watch
Financing Receivable [Line Items]
Loans Receivable	2,741	803
Total commercial real estate | OAEM
Financing Receivable [Line Items]
Loans Receivable	578	2,157
Total commercial real estate | Substandard
Financing Receivable [Line Items]
Loans Receivable	49	56
Total commercial real estate | Doubtful
Financing Receivable [Line Items]
Loans Receivable	0	0
Total commercial real estate | Construction, land & land development
Financing Receivable [Line Items]
Loans Receivable	31,083	51,208
Total commercial real estate | Construction, land & land development | Pass
Financing Receivable [Line Items]
Loans Receivable	30,629	51,208
Total commercial real estate | Construction, land & land development | Watch
Financing Receivable [Line Items]
Loans Receivable	454	0
Total commercial real estate | Construction, land & land development | OAEM
Financing Receivable [Line Items]
Loans Receivable	0	0
Total commercial real estate | Construction, land & land development | Substandard
Financing Receivable [Line Items]
Loans Receivable	0	0
Total commercial real estate | Construction, land & land development | Doubtful
Financing Receivable [Line Items]
Loans Receivable	0	0
Total commercial real estate | Other commercial real estate
Financing Receivable [Line Items]
Loans Receivable	171,914	209,531
Total commercial real estate | Other commercial real estate | Pass
Financing Receivable [Line Items]
Loans Receivable	169,000	206,515
Total commercial real estate | Other commercial real estate | Watch
Financing Receivable [Line Items]
Loans Receivable	2,287	803
Total commercial real estate | Other commercial real estate | OAEM
Financing Receivable [Line Items]
Loans Receivable	578	2,157
Total commercial real estate | Other commercial real estate | Substandard
Financing Receivable [Line Items]
Loans Receivable	49	56
Total commercial real estate | Other commercial real estate | Doubtful
Financing Receivable [Line Items]
Loans Receivable	0	0
Residential real estate
Financing Receivable [Line Items]
Loans Receivable	117,449	144,596
Residential real estate | Pass
Financing Receivable [Line Items]
Loans Receivable	114,387	142,079
Residential real estate | Watch
Financing Receivable [Line Items]
Loans Receivable	2,581	1,883
Residential real estate | OAEM
Financing Receivable [Line Items]
Loans Receivable	122	314
Residential real estate | Substandard
Financing Receivable [Line Items]
Loans Receivable	359	320
Residential real estate | Doubtful
Financing Receivable [Line Items]
Loans Receivable	0	0
Owner-occupied real estate
Financing Receivable [Line Items]
Loans Receivable	114,438	115,566
Owner-occupied real estate | Pass
Financing Receivable [Line Items]
Loans Receivable	106,386	107,096
Owner-occupied real estate | Watch
Financing Receivable [Line Items]
Loans Receivable	4,765	6,310
Owner-occupied real estate | OAEM
Financing Receivable [Line Items]
Loans Receivable	0	0
Owner-occupied real estate | Substandard
Financing Receivable [Line Items]
Loans Receivable	3,287	2,160
Owner-occupied real estate | Doubtful
Financing Receivable [Line Items]
Loans Receivable	0	0
Commercial, financial & agricultural
Financing Receivable [Line Items]
Loans Receivable	31,654	36,206
Commercial, financial & agricultural | Pass
Financing Receivable [Line Items]
Loans Receivable	29,472	34,747
Commercial, financial & agricultural | Watch
Financing Receivable [Line Items]
Loans Receivable	0	310
Commercial, financial & agricultural | OAEM
Financing Receivable [Line Items]
Loans Receivable	87	21
Commercial, financial & agricultural | Substandard
Financing Receivable [Line Items]
Loans Receivable	2,095	1,128
Commercial, financial & agricultural | Doubtful
Financing Receivable [Line Items]
Loans Receivable	0	0
Consumer
Financing Receivable [Line Items]
Loans Receivable	3,393	6,255
Consumer | Pass
Financing Receivable [Line Items]
Loans Receivable	3,378	6,247
Consumer | Watch
Financing Receivable [Line Items]
Loans Receivable	1	5
Consumer | OAEM
Financing Receivable [Line Items]
Loans Receivable	0	0
Consumer | Substandard
Financing Receivable [Line Items]
Loans Receivable	14	3
Consumer | Doubtful
Financing Receivable [Line Items]
Loans Receivable	$ 0	$ 0

Allowance for Loan and Lease 66

Allowance for Loan and Lease Losses (ALLL) - Credit Quality of Purchased Credit Impaired Loans (Details) - Purchased Credit Impaired Loans - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	$ 135,598	$ 160,646
Pass
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	64,419	81,019
Watch
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	27,100	29,918
OAEM
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	6,368	8,266
Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	37,447	41,171
Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	264	272
Total commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	62,935	77,279
Total commercial real estate | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	29,858	41,221
Total commercial real estate | Watch
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	14,128	14,253
Total commercial real estate | OAEM
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	3,148	4,186
Total commercial real estate | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	15,801	17,619
Total commercial real estate | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0	0
Total commercial real estate | Construction, land & land development
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	16,857	16,537
Total commercial real estate | Construction, land & land development | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	9,331	7,798
Total commercial real estate | Construction, land & land development | Watch
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	1,254	1,150
Total commercial real estate | Construction, land & land development | OAEM
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	933	1,416
Total commercial real estate | Construction, land & land development | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	5,339	6,173
Total commercial real estate | Construction, land & land development | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0	0
Total commercial real estate | Other commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	46,078	60,742
Total commercial real estate | Other commercial real estate | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	20,527	33,423
Total commercial real estate | Other commercial real estate | Watch
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	12,874	13,103
Total commercial real estate | Other commercial real estate | OAEM
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	2,215	2,770
Total commercial real estate | Other commercial real estate | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	10,462	11,446
Total commercial real estate | Other commercial real estate | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0	0
Residential real estate
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	45,513	54,507
Residential real estate | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	24,213	28,628
Residential real estate | Watch
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	7,587	10,371
Residential real estate | OAEM
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	2,048	2,840
Residential real estate | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	11,402	12,396
Residential real estate | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	263	272
Owner-occupied real estate
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	23,262	23,980
Owner-occupied real estate | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	7,694	7,736
Owner-occupied real estate | Watch
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	5,028	4,884
Owner-occupied real estate | OAEM
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	813	794
Owner-occupied real estate | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	9,727	10,566
Owner-occupied real estate | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0	0
Commercial, financial & agricultural
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	3,617	4,533
Commercial, financial & agricultural | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	2,616	3,381
Commercial, financial & agricultural | Watch
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	297	310
Commercial, financial & agricultural | OAEM
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	202	273
Commercial, financial & agricultural | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	502	569
Commercial, financial & agricultural | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0	0
Consumer
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	271	347
Consumer | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	38	53
Consumer | Watch
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	60	100
Consumer | OAEM
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	157	173
Consumer | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	15	21
Consumer | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	$ 1	$ 0

Allowance for Loan and Lease 67

Allowance for Loan and Lease Losses (ALLL) - Narrative (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2017USD ($)commitment	Jun. 30, 2016USD ($)	Jun. 30, 2017USD ($)contractcommitment	Jun. 30, 2016USD ($)contract	Dec. 31, 2016USD ($)commitment
Financing Receivable, Allowance for Credit Losses [Line Items]
Recorded Investment	$ 6,599,000		$ 6,599,000		$ 9,615,000
Troubled debt restructuring	$ 0		$ 0		5,000,000
Allowance for loan losses on troubled debt restructuring					$ 148,000
Number of commitments to extend credit to borrowers with TDR | commitment	0		0		0
Number of TDR's that subsequently defaulted within 12 months | contract			0	0
Financing Receivable, Modifications, Interest Income	$ 0	$ 16,000	$ 0	$ 24,000
SBA Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Recorded Investment	$ 4,400,000		$ 4,400,000		$ 3,000,000

Allowance for Loan and Lease 68

Allowance for Loan and Lease Losses (ALLL) - Troubled Debt Restructuring (Details) - Organic Loans $ in Thousands	6 Months Ended
	Jun. 30, 2017USD ($)contract	Jun. 30, 2016USD ($)contract
Financing Receivable, Modifications [Line Items]
Number of Contracts | contract	0	1
Pre-Modification Outstanding Recorded Investment	$ 0	$ 4,168
Post-Modification Outstanding Recorded Investment	$ 0	$ 4,168
Consumer
Financing Receivable, Modifications [Line Items]
Number of Contracts | contract	0	0
Pre-Modification Outstanding Recorded Investment	$ 0	$ 0
Post-Modification Outstanding Recorded Investment	$ 0	$ 0
Total commercial real estate
Financing Receivable, Modifications [Line Items]
Number of Contracts | contract	0	1
Pre-Modification Outstanding Recorded Investment	$ 0	$ 4,168
Post-Modification Outstanding Recorded Investment	$ 0	$ 4,168
Total commercial real estate | Construction, land & land development
Financing Receivable, Modifications [Line Items]
Number of Contracts | contract	0	1
Pre-Modification Outstanding Recorded Investment	$ 0	$ 4,168
Post-Modification Outstanding Recorded Investment	$ 0	$ 4,168
Total commercial real estate | Other commercial real estate
Financing Receivable, Modifications [Line Items]
Number of Contracts | contract	0	0
Pre-Modification Outstanding Recorded Investment	$ 0	$ 0
Post-Modification Outstanding Recorded Investment	$ 0	$ 0
Commercial & industrial
Financing Receivable, Modifications [Line Items]
Number of Contracts | contract	0	0
Pre-Modification Outstanding Recorded Investment	$ 0	$ 0
Post-Modification Outstanding Recorded Investment	$ 0	$ 0
Owner-occupied real estate
Financing Receivable, Modifications [Line Items]
Number of Contracts | contract	0	0
Pre-Modification Outstanding Recorded Investment	$ 0	$ 0
Post-Modification Outstanding Recorded Investment	$ 0	$ 0
Residential real estate
Financing Receivable, Modifications [Line Items]
Number of Contracts | contract	0	0
Pre-Modification Outstanding Recorded Investment	$ 0	$ 0
Post-Modification Outstanding Recorded Investment	$ 0	$ 0

Other Real Estate Owned (OREO69

Other Real Estate Owned (OREO) - Narrative (Details) $ in Thousands	Jun. 30, 2017USD ($)
Banking and Thrift [Abstract]
Consumer mortgage loans secured by residential real estate in process of foreclosure	$ 123

Other Real Estate Owned (OREO70

Other Real Estate Owned (OREO) - Types of OREO (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Financing Receivable, Impaired [Line Items]
Other real estate owned	$ 2,407	$ 10,897
Construction, land development, and other land
Financing Receivable, Impaired [Line Items]
Other real estate owned	1,146	2,393
Commercial and farmland real estate
Financing Receivable, Impaired [Line Items]
Other real estate owned	746	6,960
Residential real estate
Financing Receivable, Impaired [Line Items]
Other real estate owned	$ 515	$ 1,544

Other Real Estate Owned (OREO71

Other Real Estate Owned (OREO) - By Type of Loan Foreclosure (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Financing Receivable, Impaired [Line Items]
Other real estate owned	$ 2,407	$ 10,897
Organic OREO
Financing Receivable, Impaired [Line Items]
Other real estate owned	23	282
Purchased Credit Impaired OREO
Financing Receivable, Impaired [Line Items]
Other real estate owned	$ 2,384	$ 10,615

SBA Servicing Rights - Narrati

SBA Servicing Rights - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Transfers and Servicing [Abstract]
SBA loans sold, unpaid principal balance	$ 16,500	$ 13,300	$ 25,000	$ 24,800
SBA loans sold, gains on sales	1,600	1,400	2,500	2,600
SBA servicing fee income	407	$ 314	840	$ 591
SBA loans serviced	$ 169,300		$ 169,300		$ 142,100

SBA Servicing Rights - Rollfor

SBA Servicing Rights - Rollforward (Details) - SBA Loans - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Servicing Asset at Fair Value, Amount [Roll Forward]
Balance, beginning of period	$ 3,547	$ 2,882	$ 3,477	$ 2,626
Additions	391	340	597	624
Fair value adjustments	(110)	(57)	(246)	(85)
Balance, end of period	$ 3,828	$ 3,165	$ 3,828	$ 3,165

SBA Servicing Rights - Fair Va

SBA Servicing Rights - Fair Value Assumptions & Sensitivity Analysis (Details) - SBA Loans - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2017	Dec. 31, 2016	Mar. 31, 2017	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015
Servicing Assets at Fair Value [Line Items]
Fair value	$ 3,828	$ 3,477	$ 3,547	$ 3,165	$ 2,882	$ 2,626
Weighted average discount rate	12.40%	12.80%
Decline in fair value due to a 100 basis point adverse change	$ (137)	$ (122)
Decline in fair value due to a 200 basis point adverse change	$ (264)	$ (236)
Prepayment speed	8.20%	8.00%
Decline in fair value due to a 10% adverse change	$ (124)	$ (108)
Decline in fair value due to a 20% adverse change	$ (241)	$ (210)
Weighted average remaining life	7 years 13 days	7 years 1 month 4 days

SBA Servicing Rights - Past Du

SBA Servicing Rights - Past Due (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Servicing Assets at Fair Value [Line Items]
Total SBA loans serviced	$ 345,854		$ 302,776
Net Charge-offs for the Six Months Ended June 30, 2017	210	$ 2,160
Serviced for others
Servicing Assets at Fair Value [Line Items]
Total SBA loans serviced	169,329		142,069
Net Charge-offs for the Six Months Ended June 30, 2017	0	0
Held-for-sale
Servicing Assets at Fair Value [Line Items]
Total SBA loans serviced	17,473		16,356
Net Charge-offs for the Six Months Ended June 30, 2017	0	0
Held-for-investment
Servicing Assets at Fair Value [Line Items]
Total SBA loans serviced	159,052		144,351
Net Charge-offs for the Six Months Ended June 30, 2017	210	$ 2,160
30 - 89 Days Past Due
Servicing Assets at Fair Value [Line Items]
Total SBA loans serviced	1,835		742
30 - 89 Days Past Due | Serviced for others
Servicing Assets at Fair Value [Line Items]
Total SBA loans serviced	380		522
30 - 89 Days Past Due | Held-for-sale
Servicing Assets at Fair Value [Line Items]
Total SBA loans serviced	0		0
30 - 89 Days Past Due | Held-for-investment
Servicing Assets at Fair Value [Line Items]
Total SBA loans serviced	1,455		220
90 Days or Greater Past Due
Servicing Assets at Fair Value [Line Items]
Total SBA loans serviced	7,390		5,580
90 Days or Greater Past Due | Serviced for others
Servicing Assets at Fair Value [Line Items]
Total SBA loans serviced	0		0
90 Days or Greater Past Due | Held-for-sale
Servicing Assets at Fair Value [Line Items]
Total SBA loans serviced	0		0
90 Days or Greater Past Due | Held-for-investment
Servicing Assets at Fair Value [Line Items]
Total SBA loans serviced	$ 7,390		$ 5,580

Derivative Instruments and He76

Derivative Instruments and Hedging Activities - Balance Sheet Disclosures (Details) - Interest rate swaps and caps - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Derivatives, Fair Value [Line Items]
Asset Derivatives	$ 1,732	$ 1,793
Liability Derivatives	569	726
Designated as Hedging Instrument | Other Assets
Derivatives, Fair Value [Line Items]
Asset Derivatives	1,717	1,774
Designated as Hedging Instrument | Other Liabilities
Derivatives, Fair Value [Line Items]
Liability Derivatives	495	641
Not Designated as Hedging Instrument | Other Assets
Derivatives, Fair Value [Line Items]
Asset Derivatives	15	19
Not Designated as Hedging Instrument | Other Liabilities
Derivatives, Fair Value [Line Items]
Liability Derivatives	$ 74	$ 85

Derivative Instruments and He77

Derivative Instruments and Hedging Activities - Narrative (Details) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2017USD ($)derivative	Jun. 30, 2016USD ($)	Mar. 31, 2013USD ($)	Jun. 30, 2017USD ($)derivative	Jun. 30, 2016USD ($)	Dec. 31, 2016USD ($)
Derivative [Line Items]
Amount of gain (loss) recognized in income	$ (21)	$ (401)		$ (409)	$ (327)
Credit Risk Contract
Derivative [Line Items]
Fair value of derivatives in net liability position	11			11
Additional collateral required, maximum	11			11
Interest rate swaps and caps
Derivative [Line Items]
Notional amount	56,600			56,600		$ 49,900
Derivative financial instruments, assets	1,732			1,732		1,793
Derivative financial instruments, liabilities	569			569		726
Forward Commitments
Derivative [Line Items]
Notional amount	$ 77,600			$ 77,600		76,700
Designated as Hedging Instrument | Interest Rate Swaps
Derivative [Line Items]
Number of interest rate derivatives held | derivative	94			94
Notional amount	$ 164,500			$ 164,500
Designated as Hedging Instrument | Interest Rate Caps
Derivative [Line Items]
Notional amount			$ 200,000
Term of contract			5 years
Estimated decrease to be reclassified from accumulated other comprehensive income in next twelve months				$ 856
Not Designated as Hedging Instrument | Interest Rate Swaps
Derivative [Line Items]
Number of interest rate derivatives held | derivative	2			2
Notional amount	$ 6,600			$ 6,600
Interest Income | Designated as Hedging Instrument | Interest Rate Swaps
Derivative [Line Items]
Amount of (loss) gain recognized in income on derivatives	(258)	(491)		(585)	(963)
Noninterest Income | Interest Rate Swaps
Derivative [Line Items]
Amount of gain (loss) recognized in income	(40)	(65)		(56)	(220)
Noninterest Income | Interest rate swaps and caps
Derivative [Line Items]
Amount of gain (loss) recognized in income	(284)	172		329	743
Noninterest Income | Forward Commitments
Derivative [Line Items]
Amount of gain (loss) recognized in income	303	(508)		(682)	(850)
Fair Value Hedging | Noninterest Income | Designated as Hedging Instrument
Derivative [Line Items]
Gain (loss) on fair value hedge ineffectiveness	(39)	(116)		(51)	(311)
Net gain (loss) recognized on terminations		1			(47)
Fair Value Hedging | Noninterest Income | Designated as Hedging Instrument | Interest Rate Swaps
Derivative [Line Items]
Gain (loss) on fair value hedge ineffectiveness	(39)	(116)		(51)	(311)
Amount of (loss) gain recognized in income on derivatives	(464)	$ (1,471)		32	$ (4,373)
Other Assets | Designated as Hedging Instrument | Interest rate swaps and caps
Derivative [Line Items]
Derivative financial instruments, assets	1,717			1,717		1,774
Other Assets | Not Designated as Hedging Instrument | Interest rate swaps and caps
Derivative [Line Items]
Derivative financial instruments, assets	15			15		19
Other Assets | Not Designated as Hedging Instrument | Mortgage Derivatives
Derivative [Line Items]
Derivative financial instruments, assets	990			990		1,362
Other Liabilities | Designated as Hedging Instrument | Interest rate swaps and caps
Derivative [Line Items]
Derivative financial instruments, liabilities	495			495		641
Other Liabilities | Not Designated as Hedging Instrument | Interest rate swaps and caps
Derivative [Line Items]
Derivative financial instruments, liabilities	74			74		85
Other Liabilities | Not Designated as Hedging Instrument | Mortgage Derivatives
Derivative [Line Items]
Derivative financial instruments, liabilities	$ 439			$ 439		$ 459

Derivative Instruments and He78

Derivative Instruments and Hedging Activities - Fair Value Hedges (Details) - Designated as Hedging Instrument - Noninterest Income - Fair Value Hedging - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Derivative Instruments, Gain (Loss) [Line Items]
Total net loss recognized in income on fair value hedge ineffectiveness	$ (39)	$ (116)	$ (51)	$ (311)
Interest Rate Swaps
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (loss) gain recognized in income on derivatives	(464)	(1,471)	32	(4,373)
Amount of gain (loss) recognized in income on hedged items	425	1,355	(83)	4,062
Total net loss recognized in income on fair value hedge ineffectiveness	$ (39)	$ (116)	$ (51)	$ (311)

Derivative Instruments and He79

Derivative Instruments and Hedging Activities - Cash Flow Hedges (Details) - Interest Rate Caps - Designated as Hedging Instrument - Cash Flow Hedging - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized in AOCI on derivatives (effective portion)	$ (409)	$ (504)	$ (754)	$ (1,404)
Other Comprehensive Income (Loss)
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized in AOCI on derivatives (effective portion)	21	(238)	80	(920)
Interest expense
Derivative Instruments, Gain (Loss) [Line Items]
Amount of loss reclassified from AOCI into income (effective portion)	$ 430	$ 266	$ 834	$ 484

Derivative Instruments and He80

Derivative Instruments and Hedging Activities - Interest Rate Products Not Designated as Hedges (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Derivative [Line Items]
Amount of gain (loss) recognized in income	$ (21)	$ (401)	$ (409)	$ (327)
Noninterest Income | Interest Rate Swaps
Derivative [Line Items]
Amount of gain (loss) recognized in income	(40)	(65)	(56)	(220)
Noninterest Income | Interest Rate Products
Derivative [Line Items]
Amount of gain (loss) recognized in income	(284)	172	329	743
Noninterest Income | Forward Commitments
Derivative [Line Items]
Amount of gain (loss) recognized in income	$ 303	$ (508)	$ (682)	$ (850)

Balance Sheet Offsetting and 81

Balance Sheet Offsetting and Repurchase Agreements - Offsetting Assets and Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Repurchase agreements
Gross Amounts Recognized	$ 25,256	$ 25,722
Gross Amounts Offset on the Statement of Financial Condition	0	0
Net Amounts Presented on the Statement of Financial Condition	25,256	25,722
Gross Amounts Not Offset on the Statement of Financial Condition	0	0
Collateral Received/Posted	(25,256)	(25,722)
Net Amount	0	0
Total Offsetting Liabilities
Gross Amounts Recognized	25,825	26,448
Gross Amounts Offset on the Statement of Financial Condition	0	0
Net Amounts Presented on the Statement of Financial Condition	25,825	26,448
Gross Amounts Not Offset on the Statement of Financial Condition	(557)	(718)
Collateral Received/Posted	(25,256)	(25,722)
Net Amount	12	8
Interest rate swaps and caps
Offsetting Derivative Assets [Abstract]
Gross Amounts Recognized	1,732	1,793
Gross Amounts Offset in the Statement of Financial Condition	0	0
Net Amounts presented in the Statement of Financial Condition	1,732	1,793
Financial Instruments	(557)	(718)
Collateral Received/Posted	(100)	(1,075)
Net Amount	1,075	0
Offsetting Derivative Liabilities [Abstract]
Gross Amounts Recognized	569	726
Gross Amounts Offset in the Statement of Financial Condition	0	0
Net Amounts presented in the Statement of Financial Condition	569	726
Financial Instruments	(557)	(718)
Collateral Received/Posted	0	0
Net Amount	$ 12	$ 8

Balance Sheet Offsetting and 82

Balance Sheet Offsetting and Repurchase Agreements - Narrative (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Offsetting [Abstract]
Securities sold under repurchase agreements	$ 25,256	$ 25,722

Regulatory Matters - Minimum R

Regulatory Matters - Minimum Required Regulatory Ratios (Details)	Jun. 30, 2017
Common Equity Tier 1 Capital
Common Equity Tier 1 Capital (CET1) capital ratio, Minimum Requirement	4.50%
Common Equity Tier 1 Capital (CET1) capital ratio, Well-capitalized	6.50%
Tier I Capital
Tier 1 risk-based capital ratio, Minimum Requirement	6.00%
Tier 1 risk-based capital ratio, Well-capitalized	8.00%
Total Capital
Total risk-based capital ratio, Minimum Requirement	8.00%
Total risk-based capital ratio, Well-capitalized	10.00%
Tier I Leverage
Tier 1 leverage ratio, Minimum Requirement	4.00%
Tier 1 leverage ratio, Well-capitalized	5.00%

Regulatory Matters - Regulator

Regulatory Matters - Regulatory Ratios Consolidated (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
CET1 Capital
Common Equity Tier 1 (CET1) capital ratio, Amount	$ 542,230	$ 526,282
Common Equity Tier 1 (CET1) capital ratio, Ratio (percent)	14.98%	14.78%
Common Equity Tier 1 (CET1) capital ratio, Required Minimum Amount	$ 162,934	$ 160,258
Tier I Capital
Tier 1 risk-based capital ratio, Amount	$ 542,230	$ 526,282
Tier 1 risk-based capital ratio, Ratio (percent)	14.98%	14.78%
Tier 1 risk-based capital ratio, Required Minimum Amount	$ 217,245	$ 213,678
Total Capital
Total risk-based capital ratio, Amount	$ 570,218	$ 552,880
Total risk-based capital ratio, Ratio (percent)	15.75%	15.52%
Total risk-based capital ratio, Required Minimum Amount	$ 289,661	$ 284,904
Tier I Leverage
Tier 1 leverage ratio, Amount	$ 542,230	$ 526,282
Tier 1 leverage ratio, Ratio (percent)	13.23%	14.90%
Tier 1 leverage ratio, Required Minimum Amount	$ 163,943	$ 141,273

Regulatory Matters - Regulat85

Regulatory Matters - Regulatory Ratios Subsidiaries (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
CET1 Capital
CET1 Capital, Amount	$ 542,230	$ 526,282
CET1, Ratio (percent)	14.98%	14.78%
CET1 Capital, Required Minimum Amount	$ 162,934	$ 160,258
Tier I Capital
Tier 1 Capital, Amount	$ 542,230	$ 526,282
Tier 1 Capital, Ratio (percent)	14.98%	14.78%
Tier 1 Capital, Required Minimum Amount	$ 217,245	$ 213,678
Total Capital
Total Capital, Amount	$ 570,218	$ 552,880
Total Capital, Ratio (percent)	15.75%	15.52%
Total Capital, Required Minimum Amount	$ 289,661	$ 284,904
Tier I Leverage
Tier 1 Leverage, Amount	$ 542,230	$ 526,282
Tier 1 Leverage, Ratio (percent)	13.23%	14.90%
Tier 1 Leverage, Required Minimum Amount	$ 163,943	$ 141,273
State Bank
CET1 Capital
CET1 Capital, Amount	$ 464,608	$ 463,164
CET1, Ratio (percent)	12.89%	13.06%
CET1 Capital, Required Minimum Amount	$ 162,255	$ 159,535
CET1 Capital, Well Capitalized Amount	234,369	230,440
Tier I Capital
Tier 1 Capital, Amount	$ 464,608	$ 463,164
Tier 1 Capital, Ratio (percent)	12.89%	13.06%
Tier 1 Capital, Required Minimum Amount	$ 216,340	$ 212,714
Tier 1 Capital, Well Capitalized Amount	288,454	283,618
Total Capital
Total Capital, Amount	$ 492,596	$ 489,762
Total Capital, Ratio (percent)	13.66%	13.81%
Total Capital, Required Minimum Amount	$ 288,454	$ 283,618
Total Capital, Well Capitalized Amount	360,567	354,523
Tier I Leverage
Tier 1 Leverage, Amount	$ 464,608	$ 463,164
Tier 1 Leverage, Ratio (percent)	11.40%	13.18%
Tier 1 Leverage, Required Minimum Amount	$ 162,990	$ 140,572
Tier 1 Leverage, Well Capitalized Amount	$ 203,738	$ 175,715

Regulatory Matters - Narrative

Regulatory Matters - Narrative (Details) - USD ($)	Jun. 30, 2017	Dec. 31, 2016
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Cash and amounts due from depository institutions	$ 11,284,000	$ 13,219,000
State Bank
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Capacity to pay dividends without prior regulatory approval	0
State Bank Financial Corporation
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Cash and amounts due from depository institutions	$ 61,400,000

Commitments and Contingent Li87

Commitments and Contingent Liabilities (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Dec. 31, 2016
Commitments [Line Items]
Commitments	$ 732,478	$ 681,566
Minimum
Commitments [Line Items]
Fixed rate loan commitments maturity	1 month
Maximum
Commitments [Line Items]
Fixed rate loan commitments maturity	14 years
Fixed | Commitments to extend credit
Commitments [Line Items]
Commitments	$ 63,103	63,166
Fixed | Financial standby letters of credit:
Commitments [Line Items]
Commitments	4,995	6,985
Variable | Commitments to extend credit
Commitments [Line Items]
Commitments	661,055	608,176
Variable | Financial standby letters of credit:
Commitments [Line Items]
Commitments	3,325	$ 3,239
Obligation to repurchase or indemnify loans sold
Commitments [Line Items]
Recourse liability	$ 304

Fair Value - Narrative (Detail

Fair Value - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of mortgages held-for-sale	$ 31,400		$ 31,400
Mortgage loans held for sale
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contractual balance including accrued interest	30,700		30,700
Gain (loss) on change in fair value			692
Mortgage Banking Income | Mortgage loans held for sale
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gain (loss) on change in fair value	(243)	$ 618	482	$ 1,100
Mortgage Banking Income | Mortgage Derivatives
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gain (loss) on change in fair value	$ (126)	$ 63	$ 251	$ 488

Fair Value - Assets and Liabil

Fair Value - Assets and Liabilities Measured on Recurring Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Assets:
Investment securities available-for-sale	$ 847,795	$ 847,178
Measured on recurring basis
Assets:
SBA servicing rights	3,828	3,477
Total recurring assets at fair value	1,055,359	1,056,788
Liabilities:
Total recurring liabilities at fair value	1,008	1,185
Measured on recurring basis | U.S. Government securities
Assets:
Investment securities available-for-sale	84,229	88,649
Measured on recurring basis | States and political subdivisions
Assets:
Investment securities available-for-sale	301	301
Measured on recurring basis | Residential mortgage-backed securities — nonagency
Assets:
Investment securities available-for-sale	135,137	154,009
Measured on recurring basis | Residential mortgage-backed securities — agency
Assets:
Investment securities available-for-sale	513,054	529,302
Measured on recurring basis | Corporate securities
Assets:
Investment securities available-for-sale	115,074	74,917
Measured on recurring basis | Mortgage loans held for sale
Assets:
Investment securities available-for-sale	31,422	35,813
Measured on recurring basis | Quoted Market Prices in Active Markets (Level 1)
Assets:
SBA servicing rights	0	0
Total recurring assets at fair value	0	0
Liabilities:
Total recurring liabilities at fair value	0	0
Measured on recurring basis | Quoted Market Prices in Active Markets (Level 1) | U.S. Government securities
Assets:
Investment securities available-for-sale	0	0
Measured on recurring basis | Quoted Market Prices in Active Markets (Level 1) | States and political subdivisions
Assets:
Investment securities available-for-sale	0	0
Measured on recurring basis | Quoted Market Prices in Active Markets (Level 1) | Residential mortgage-backed securities — nonagency
Assets:
Investment securities available-for-sale	0	0
Measured on recurring basis | Quoted Market Prices in Active Markets (Level 1) | Residential mortgage-backed securities — agency
Assets:
Investment securities available-for-sale	0	0
Measured on recurring basis | Quoted Market Prices in Active Markets (Level 1) | Corporate securities
Assets:
Investment securities available-for-sale	0	0
Measured on recurring basis | Quoted Market Prices in Active Markets (Level 1) | Mortgage loans held for sale
Assets:
Investment securities available-for-sale	0	0
Measured on recurring basis | Significant Other Observable Inputs (Level 2)
Assets:
SBA servicing rights	0	0
Total recurring assets at fair value	1,050,641	1,052,612
Liabilities:
Total recurring liabilities at fair value	623	740
Measured on recurring basis | Significant Other Observable Inputs (Level 2) | U.S. Government securities
Assets:
Investment securities available-for-sale	84,229	88,649
Measured on recurring basis | Significant Other Observable Inputs (Level 2) | States and political subdivisions
Assets:
Investment securities available-for-sale	301	301
Measured on recurring basis | Significant Other Observable Inputs (Level 2) | Residential mortgage-backed securities — nonagency
Assets:
Investment securities available-for-sale	135,137	154,009
Measured on recurring basis | Significant Other Observable Inputs (Level 2) | Residential mortgage-backed securities — agency
Assets:
Investment securities available-for-sale	513,054	529,302
Measured on recurring basis | Significant Other Observable Inputs (Level 2) | Corporate securities
Assets:
Investment securities available-for-sale	115,074	74,917
Measured on recurring basis | Significant Other Observable Inputs (Level 2) | Mortgage loans held for sale
Assets:
Investment securities available-for-sale	31,422	35,813
Measured on recurring basis | Significant Unobservable Inputs (Level 3)
Assets:
SBA servicing rights	3,828	3,477
Total recurring assets at fair value	4,718	4,176
Liabilities:
Total recurring liabilities at fair value	385	445
Measured on recurring basis | Significant Unobservable Inputs (Level 3) | U.S. Government securities
Assets:
Investment securities available-for-sale	0	0
Measured on recurring basis | Significant Unobservable Inputs (Level 3) | States and political subdivisions
Assets:
Investment securities available-for-sale	0	0
Measured on recurring basis | Significant Unobservable Inputs (Level 3) | Residential mortgage-backed securities — nonagency
Assets:
Investment securities available-for-sale	0	0
Measured on recurring basis | Significant Unobservable Inputs (Level 3) | Residential mortgage-backed securities — agency
Assets:
Investment securities available-for-sale	0	0
Measured on recurring basis | Significant Unobservable Inputs (Level 3) | Corporate securities
Assets:
Investment securities available-for-sale	0	0
Measured on recurring basis | Significant Unobservable Inputs (Level 3) | Mortgage loans held for sale
Assets:
Investment securities available-for-sale	0	0
Hedged Loans | Measured on recurring basis
Assets:
Derivative financial instruments, assets	169,592	167,165
Hedged Loans | Measured on recurring basis | Quoted Market Prices in Active Markets (Level 1)
Assets:
Derivative financial instruments, assets	0	0
Hedged Loans | Measured on recurring basis | Significant Other Observable Inputs (Level 2)
Assets:
Derivative financial instruments, assets	169,592	167,165
Hedged Loans | Measured on recurring basis | Significant Unobservable Inputs (Level 3)
Assets:
Derivative financial instruments, assets	0	0
Mortgage Derivatives | Measured on recurring basis
Assets:
Derivative financial instruments, assets	990	1,362
Liabilities:
Derivative financial instruments, liabilities	439	459
Mortgage Derivatives | Measured on recurring basis | Quoted Market Prices in Active Markets (Level 1)
Assets:
Derivative financial instruments, assets	0	0
Liabilities:
Derivative financial instruments, liabilities	0	0
Mortgage Derivatives | Measured on recurring basis | Significant Other Observable Inputs (Level 2)
Assets:
Derivative financial instruments, assets	100	663
Liabilities:
Derivative financial instruments, liabilities	54	14
Mortgage Derivatives | Measured on recurring basis | Significant Unobservable Inputs (Level 3)
Assets:
Derivative financial instruments, assets	890	699
Liabilities:
Derivative financial instruments, liabilities	385	445
Interest Rate Swaps and Caps | Measured on recurring basis
Assets:
Derivative financial instruments, assets	1,732	1,793
Liabilities:
Derivative financial instruments, liabilities	569	726
Interest Rate Swaps and Caps | Measured on recurring basis | Quoted Market Prices in Active Markets (Level 1)
Assets:
Derivative financial instruments, assets	0	0
Liabilities:
Derivative financial instruments, liabilities	0	0
Interest Rate Swaps and Caps | Measured on recurring basis | Significant Other Observable Inputs (Level 2)
Assets:
Derivative financial instruments, assets	1,732	1,793
Liabilities:
Derivative financial instruments, liabilities	569	726
Interest Rate Swaps and Caps | Measured on recurring basis | Significant Unobservable Inputs (Level 3)
Assets:
Derivative financial instruments, assets	0	0
Liabilities:
Derivative financial instruments, liabilities	$ 0	$ 0

Fair Value - Mortgage Derivati

Fair Value - Mortgage Derivatives Reconciliation (Details) - Mortgage Derivatives - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Other Assets
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Balance, beginning of period	$ 1,096	$ 1,350	$ 699	$ 651
Issuances	362	606	1,204	1,657
Settlements and closed loans	(568)	(618)	(1,013)	(970)
Balance, end of period	890	1,338	890	1,338
Other Liabilities
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Balance, beginning of period	465	635	445	361
Issuances	363	542	828	1,169
Settlements and closed loans	(443)	(617)	(888)	(970)
Balance, end of period	$ 385	$ 560	$ 385	$ 560

Fair Value - Financial Assets

Fair Value - Financial Assets Measured on a Nonrecurring Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Unpaid principal balance	$ 7,288	$ 13,776
Impaired financing receivable, related allowance	572	831
Organic and Purchased Non-Credit Impaired Loans | Financial assets measured on a Nonrecurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	6,027	8,784
Total nonrecurring assets at fair value	6,027	8,784
Organic and Purchased Non-Credit Impaired Loans | Financial assets measured on a Nonrecurring basis | Collateral Dependent
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Unpaid principal balance	6,600	9,600
Impaired financing receivable, related allowance	572	831
Organic and Purchased Non-Credit Impaired Loans | Financial assets measured on a Nonrecurring basis | Quoted Market Prices in Active Markets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	0	0
Total nonrecurring assets at fair value	0	0
Organic and Purchased Non-Credit Impaired Loans | Financial assets measured on a Nonrecurring basis | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	0	0
Total nonrecurring assets at fair value	0	0
Organic and Purchased Non-Credit Impaired Loans | Financial assets measured on a Nonrecurring basis | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	6,027	8,784
Total nonrecurring assets at fair value	$ 6,027	$ 8,784

Fair Value - Nonfinancial Asse

Fair Value - Nonfinancial Assets Measured on a Nonrecurring Basis (Details) - Financial assets measured on a Nonrecurring basis - Other Real Estate Owned - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate owned	$ 2,880	$ 13,292
Quoted Market Prices in Active Markets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate owned	0	0
Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate owned	0	0
Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate owned	$ 2,880	$ 13,292

Fair Value - Reconciliation of

Fair Value - Reconciliation of Other Real Estate Owned (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate owned	$ 2,407	$ 10,897
Other Real Estate Owned | Assets measured on a nonrecurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate owned at fair value	2,880	13,292
Estimated selling costs and other adjustments	(473)	(2,395)
Other real estate owned	$ 2,407	$ 10,897

Fair Value - Unobservable Inpu

Fair Value - Unobservable Inputs (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2017	Dec. 31, 2016
SBA Servicing Asset | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount rate	9.00%	9.00%
Prepayment speed	3.00%	3.00%
SBA Servicing Asset | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount rate	19.00%	18.00%
Prepayment speed	12.00%	11.00%
SBA Servicing Asset | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount rate	12.00%	13.00%
Prepayment speed	8.00%	8.00%
Mortgage Derivatives
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Pull-through rate	83.00%	84.00%
Other Real Estate Owned | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Management discount for property type and recent market volatility	0.00%	0.00%
Other Real Estate Owned | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Management discount for property type and recent market volatility	33.00%	68.00%
Other Real Estate Owned | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Management discount for property type and recent market volatility	14.00%	16.00%
Measured on recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
SBA servicing rights	$ 3,828	$ 3,477
Mortgage derivatives - asset	1,055,359	1,056,788
Measured on recurring basis | SBA Servicing Asset | Discounted cash flows
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
SBA servicing rights	3,828	3,477
Measured on recurring basis | Mortgage Derivatives | Pricing model
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage derivatives - asset	890	699
Assets measured on a nonrecurring basis | Other Real Estate Owned | Third party appraisal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate owned	$ 2,880	$ 13,292
Organic Loans | Minimum | Collateral Dependent
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Management discount for property type and recent market volatility	0.00%	0.00%
Organic Loans | Maximum | Collateral Dependent
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Management discount for property type and recent market volatility	50.00%	50.00%
Organic Loans | Weighted Average | Collateral Dependent
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Management discount for property type and recent market volatility	9.00%	9.00%
Organic Loans | Assets measured on a nonrecurring basis | Third party appraisal | Collateral Dependent
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans - collateral dependent	$ 6,027	$ 8,784
Mortgage Derivatives
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Pull-through rate	83.00%	84.00%
Mortgage Derivatives | Measured on recurring basis | Pricing model
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage derivatives - liability	$ 385	$ 445

Fair Value - Estimated Fair Va

Fair Value - Estimated Fair Value of Financial Assets and Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Assets:
Investment securities available-for-sale	$ 847,795	$ 847,178
Investment securities held-to-maturity	63,729	67,435
Loans held-for-sale	31,400
Other real estate owned	2,407	10,897
Carrying Amount | Level 1
Assets:
Cash and cash equivalents	137,674	149,593
Carrying Amount | Level 2
Assets:
Investment securities available-for-sale	847,795	847,178
Loans held-for-sale	48,895	52,169
Derivative financial instruments	1,732	1,793
Accrued interest receivable	10,220	10,210
Liabilities:
Deposits	3,452,692	3,431,165
Securities sold under repurchase agreements	25,256	27,673
FHLB borrowings	80,000	47,014
Notes payable	398	398
Interest rate swaps and caps	569	726
Accrued interest payable	1,081	2,312
Carrying Amount | Level 2 & 3
Assets:
Investment securities held-to-maturity	63,104	67,063
Loans, net	2,853,012	2,787,974
Derivative financial instruments	990	1,362
Liabilities:
Interest rate swaps and caps	439	459
Carrying Amount | Level 3
Assets:
Other real estate owned	2,407	10,897
SBA servicing rights	3,828	3,477
Federal Home Loan Bank stock	7,186	5,680
Estimate of Fair Value | Level 1
Assets:
Cash and cash equivalents	137,674	149,593
Estimate of Fair Value | Level 2
Assets:
Investment securities available-for-sale	847,795	847,178
Loans held-for-sale	50,630	53,770
Derivative financial instruments	1,732	1,793
Accrued interest receivable	10,220	10,210
Liabilities:
Deposits	3,452,775	3,430,405
Securities sold under repurchase agreements	25,256	27,673
FHLB borrowings	80,000	47,014
Notes payable	398	398
Interest rate swaps and caps	569	726
Accrued interest payable	1,081	2,312
Estimate of Fair Value | Level 2 & 3
Assets:
Investment securities held-to-maturity	63,729	67,435
Loans, net	2,878,710	2,820,484
Derivative financial instruments	990	1,362
Liabilities:
Interest rate swaps and caps	439	459
Estimate of Fair Value | Level 3
Assets:
Other real estate owned	2,880	13,292
SBA servicing rights	3,828	3,477
Federal Home Loan Bank stock	$ 7,186	$ 5,680

Earnings Per Share (Details)

Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Earnings Per Share [Abstract]
Anti-dilutive securities excluded from computation of earnings per share (in shares)	0	0	0	0
Numerator:
Net income	$ 15,203	$ 13,985	$ 26,761	$ 24,823
Net income allocated to participating securities	(413)	(408)	(706)	(673)
Net income allocated to common stock	14,790	13,577	26,055	24,150
Basic earnings per share computation:
Net income allocated to common stock	$ 14,790	$ 13,577	$ 26,055	$ 24,150
Weighted average common shares outstanding, including shares considered participating securities (in shares)	38,955,513	36,899,198	38,908,102	36,982,312
Less: Average participating securities (in shares)	(1,059,388)	(1,076,544)	(1,026,103)	(1,002,876)
Weighted average shares (in shares)	37,896,125	35,822,654	37,881,999	35,979,436
Basic earnings per share (usd per share)	$ 0.39	$ 0.38	$ 0.69	$ 0.67
Diluted earnings per share computation:
Net income allocated to common stock	$ 14,790	$ 13,577	$ 26,055	$ 24,150
Weighted average shares (in shares)	37,896,125	35,822,654	37,881,999	35,979,436
Weighted average dilutive grants (in shares)	46,358	101,037	52,188	98,384
Weighted average shares and dilutive potential common shares (in shares)	37,942,483	35,923,691	37,934,187	36,077,820
Diluted earnings per share (usd per share)	$ 0.39	$ 0.38	$ 0.69	$ 0.67

Accumulated Other Comprehensi97

Accumulated Other Comprehensive Income - Components of AOCI (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Accumulated Other Comprehensive Income (Loss), before Tax [Roll Forward]
Balance, beginning of period	$ (2,547)	$ 1,477	$ (2,457)	$ (1,634)
Other comprehensive loss before income taxes:
Net change in unrealized gains	1,110	3,521	594	8,495
Amounts reclassified for net (gains) losses realized and included in earnings	417	(130)	809	75
Transfer of net unrealized Check Yourself Before You Wreck Yourself! from available-for-sale to held-to-maturity				0
Amortization of net unrealized losses on securities transferred to held-to-maturity	46	(2)	(44)	(1)
Income tax expense (benefit)	585	1,312	549	3,381
Balance, end of period	(1,559)	3,554	(1,559)	3,554
Investment Securities Available-for-Sale
Accumulated Other Comprehensive Income (Loss), before Tax [Roll Forward]
Balance, beginning of period	(1,568)	3,294	(1,200)	(272)
Other comprehensive loss before income taxes:
Net change in unrealized gains	1,089	3,759	514	9,415
Amounts reclassified for net (gains) losses realized and included in earnings	(13)	(396)	(25)	(409)
Transfer of net unrealized Check Yourself Before You Wreck Yourself! from available-for-sale to held-to-maturity				172
Amortization of net unrealized losses on securities transferred to held-to-maturity	0	0	0	0
Income tax expense (benefit)	413	1,301	194	3,550
Balance, end of period	(905)	5,356	(905)	5,356
Held-to-Maturity Securities Transferred from Available-For-Sale
Accumulated Other Comprehensive Income (Loss), before Tax [Roll Forward]
Balance, beginning of period	(177)	(171)	(175)	0
Other comprehensive loss before income taxes:
Net change in unrealized gains	0	0	0	0
Amounts reclassified for net (gains) losses realized and included in earnings	0	0	0	0
Transfer of net unrealized Check Yourself Before You Wreck Yourself! from available-for-sale to held-to-maturity				(172)
Amortization of net unrealized losses on securities transferred to held-to-maturity	46	(2)	(44)	(1)
Income tax expense (benefit)	0	0	0	0
Balance, end of period	(131)	(173)	(131)	(173)
Cash Flow Hedges (Effective Portion)
Accumulated Other Comprehensive Income (Loss), before Tax [Roll Forward]
Balance, beginning of period	(802)	(1,646)	(1,082)	(1,362)
Other comprehensive loss before income taxes:
Net change in unrealized gains	21	(238)	80	(920)
Amounts reclassified for net (gains) losses realized and included in earnings	430	266	834	484
Transfer of net unrealized Check Yourself Before You Wreck Yourself! from available-for-sale to held-to-maturity				0
Amortization of net unrealized losses on securities transferred to held-to-maturity	0	0	0	0
Income tax expense (benefit)	172	11	355	(169)
Balance, end of period	$ (523)	$ (1,629)	$ (523)	$ (1,629)

Accumulated Other Comprehensi98

Accumulated Other Comprehensive Income - Reclassifications out of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest expense on deposits	$ (3,369)	$ (2,371)	$ (6,608)	$ (4,484)
Income tax benefit (expense)	(7,909)	(7,287)	(14,201)	(13,721)
Investment Securities Available-for-Sale | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Gain on sale of investment securities	13	396	25	409
Income tax benefit (expense)	(5)	(153)	(10)	(158)
Net income	8	243	15	251
Cash Flow Hedges (Effective Portion) | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest expense on deposits	(430)	(266)	(834)	(484)
Income tax benefit (expense)	165	103	320	187
Net income	$ (265)	$ (163)	$ (514)	$ (297)