State Bank Financial (STBZ) Inactive 10-K13 Mar 152014 FY Annual reportFinancial data

Company Profile

Document_and_Entity_Informatio

Document and Entity Information (USD $)	12 Months Ended
In Millions, except Share data, unless otherwise specified	Dec. 31, 2014	Mar. 12, 2015	Jun. 30, 2014
Document and Entity Information [Abstract]
Entity Registrant Name	STATE BANK FINANCIAL CORP
Entity Central Index Key	1497275
Document Type	10-K
Document Period End Date	31-Dec-14
Amendment Flag	FALSE
Current Fiscal Year End Date	-19
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Accelerated Filer
Entity Public Float			$523
Entity Common Stock, Shares Outstanding		35,687,574
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	FY

CONSOLIDATED_STATEMENTS_OF_FIN

CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Assets
Cash and amounts due from depository institutions	$10,550	$8,518
Interest-bearing deposits in other financial institutions	470,608	590,231
Cash and cash equivalents	481,158	598,749
Investment securities available-for-sale	640,086	387,048
Loans (including covered loans of $99,530 and $257,494 at 2014 and 2013, respectively)	1,634,529	1,380,969
Allowance for loan and lease losses	-28,638	-34,065
Loans, net	1,605,891	1,346,904
Mortgage loans held for sale	3,174	897
Other real estate owned (including covered OREO of $3,347 and $46,222 at 2014 and 2013, respectively)	8,568	47,187
Premises and equipment, net	35,286	33,318
Goodwill	10,606	10,381
Other intangibles, net	2,752	1,986
SBA servicing rights	1,516	0
FDIC receivable for loss share agreements	22,320	107,843
Bank-owned life insurance	41,479	40,145
Other assets	29,374	30,930
Total assets	2,882,210	2,605,388
Liabilities:
Noninterest-bearing deposits	577,295	468,138
Interest-bearing deposits	1,814,387	1,660,187
Total deposits	2,391,682	2,128,325
Securities sold under agreements to repurchase	0	1,216
Notes payable	2,771	5,682
Other liabilities	23,662	32,982
Total liabilities	2,418,115	2,168,205
Shareholders' equity:
Preferred stock, $1 par value; 2,000,000 shares authorized, no shares issued and outstanding at 2014 and 2013, respectively	0	0
Common stock, $.01 par value; 100,000,000 shares authorized; 32,269,604 and 32,094,145 shares issued and outstanding at 2014 and 2013, respectively	323	321
Additional paid-in capital	297,479	295,379
Retained earnings	162,373	136,313
Accumulated other comprehensive income, net of tax	3,920	5,170
Total shareholders' equity	464,095	437,183
Total liabilities and shareholders' equity	$2,882,210	$2,605,388

CONSOLIDATED_STATEMENTS_OF_FIN1

CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (Parenthetical) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Statement of Financial Position [Abstract]
Loans and Leases Receivable, Covered	$99,530	$257,494
Other real estate, covered	$3,347	$46,222
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)	32,269,604	32,094,145
Common stock, shares outstanding (in shares)	32,269,604	32,094,145

CONSOLIDATED_STATEMENTS_OF_INC

CONSOLIDATED STATEMENTS OF INCOME (USD $)	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Interest income:
Loans	$64,176	$61,010	$55,228
Loan accretion	78,857	122,466	102,413
Investment securities	9,212	8,991	10,695
Deposits with other financial institutions	1,276	1,207	695
Total interest income	153,521	193,674	169,031
Interest expense:
Deposits	7,156	7,386	9,529
Federal Home Loan Bank advances	1	0	0
Notes payable	362	544	216
Federal funds purchased and repurchase agreements	1	3	4
Total interest expense	7,520	7,933	9,749
Net interest income	146,001	185,741	159,282
Provision for (recovery of) loan losses	2,896	-2,487	15,116
Net interest income after provision for (recovery of) loan losses	143,105	188,228	144,166
Noninterest income:
Amortization of FDIC receivable for loss share agreements	-15,785	-87,884	-32,569
Service charges on deposits	4,834	5,156	5,117
Mortgage banking income	835	1,008	1,231
Gain on sale of investment securities	246	1,081	318
Gain on FHLB stock redemptions	0	0	1,215
Payroll fee income	3,700	3,143	622
ATM income	2,471	2,448	2,425
Bank-owned life insurance income	1,334	1,354	1,396
SBA income	477	0	0
Other	1,490	2,747	479
Total noninterest income	-398	-70,947	-19,766
Noninterest expense:
Salaries and employee benefits	62,093	62,236	54,536
Occupancy and equipment	9,898	9,767	9,845
Data processing	7,053	6,087	5,668
Legal and professional fees	3,440	4,989	6,624
Marketing	1,824	1,504	2,171
Federal insurance premiums and other regulatory fees	1,420	2,315	1,824
Amortization of intangibles	694	1,202	1,029
Loan collection and OREO costs	480	4,339	1,960
Other	6,566	5,528	5,579
Total noninterest expense	93,468	97,967	89,236
Income before income taxes	49,239	19,314	35,164
Income tax expense	18,321	6,567	12,422
Net income	$30,918	$12,747	$22,742
Basic net income per share (in USD per share)	$0.96	$0.40	$0.72
Diluted net income per share (in USD per share)	$0.92	$0.38	$0.69
Cash dividends declared per common share (in USD per share)	$0.15	$0.12	$0.06
Weighted Average Shares Outstanding:
Basic (in shares)	32,175,363	31,978,844	31,696,358
Diluted (in shares)	33,736,352	33,290,565	32,890,274

CONSOLIDATED_STATEMENTS_OF_COM

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Statement of Comprehensive Income [Abstract]
Net income	$30,918	$12,747	$22,742
Other comprehensive (loss) income, net of tax:
Net change in unrealized (losses) gains	-1,974	-4,125	17,557
Amounts reclassified for losses (gains) realized and included in earnings	13	-1,041	-318
Other comprehensive (loss) income, before income taxes	-1,961	-5,166	17,239
Income tax (benefit) expense	-711	-1,808	6,034
Other comprehensive (loss) income, net of income taxes	-1,250	-3,358	11,205
Comprehensive income	$29,668	$9,389	$33,947

CONSOLIDATED_STATEMENTS_OF_SHA

CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (USD $)	Total	Warrants	Common Stock	Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
In Thousands, except Share data, unless otherwise specified	USD ($)	Warrants	USD ($)	USD ($)	USD ($)	USD ($)
Balance at Dec. 31, 2011	$397,288		$317	$293,074	$106,574	($2,677)
Balance warrants (in shares) at Dec. 31, 2011		2,686,827
Balance (in shares) at Dec. 31, 2011			31,721,236
Increase (decrease) in shareholders' equity
Exercise of stock warrants (in shares)		-19,999	17,929
Exercise of stock warrants			1
Adjustments to Additional Paid in Capital, Warrant Issued	167			166
Share-based compensation	779			779
Repurchase of stock warrants (in shares)		-26,545
Repurchase of stock warrants	-55			-55
Restricted stock awards activity (in shares)			169,500
Restricted stock activity			1	-1
Change in accumulated other comprehensive income	11,205					11,205
Common stock dividend	-1,910				-1,910
Net income	22,742				22,742
Balance at Dec. 31, 2012	430,216		319	293,963	127,406	8,528
Balance warrants (in shares) at Dec. 31, 2012	2,640,283	2,640,283
Balance (in shares) at Dec. 31, 2012			31,908,665
Increase (decrease) in shareholders' equity
Exercise of stock warrants (in shares)		-15,000	11,666
Exercise of stock warrants			0
Adjustments to Additional Paid in Capital, Warrant Issued	100			100
Share-based compensation	1,321			1,321
Repurchase of stock warrants (in shares)		-1,459
Repurchase of stock warrants	-3			-3
Restricted stock awards activity (in shares)			173,814
Restricted stock activity			2	-2
Change in accumulated other comprehensive income	-3,358					-3,358
Common stock dividend	-3,840				-3,840
Net income	12,747				12,747
Balance at Dec. 31, 2013	437,183		321	295,379	136,313	5,170
Balance warrants (in shares) at Dec. 31, 2013	2,623,824	2,623,824
Balance (in shares) at Dec. 31, 2013	32,094,145		32,094,145
Increase (decrease) in shareholders' equity
Exercise of stock warrants (in shares)		-42,633	38,477
Exercise of stock warrants			0
Adjustments to Additional Paid in Capital, Warrant Issued	195			195
Share-based compensation	2,035			2,035
Repurchase of stock warrants (in shares)		0
Repurchase of stock warrants	0			0
Restricted stock awards activity (in shares)			136,982
Restricted stock activity	-156		2	-130	-28
Change in accumulated other comprehensive income	-1,250					-1,250
Common stock dividend	-4,830				-4,830
Net income	30,918				30,918
Balance at Dec. 31, 2014	$464,095		$323	$297,479	$162,373	$3,920
Balance warrants (in shares) at Dec. 31, 2014	2,581,191	2,581,191
Balance (in shares) at Dec. 31, 2014	32,269,604		32,269,604

CONSOLIDATED_STATEMENTS_OF_SHA1

CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Parenthetical) (USD $)	3 Months Ended				12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Statement of Stockholders' Equity [Abstract]
Cash dividends paid per common share (in USD per share)	$0.04	$0.04	$0.04	$0.03	$0.15	$0.12	$0.06

CONSOLIDATED_STATEMENTS_OF_CAS

CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Cash Flows from Operating Activities
Net income	$30,918	$12,747	$22,742
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization, and accretion	7,275	3,970	2,749
Provision for (recovery of) loan losses	2,896	-2,487	15,116
Accretion on acquisitions, net	-63,072	-34,582	-69,844
Gains on sales of other real estate owned	-14,928	-21,193	-29,600
Writedowns of other real estate owned	13,173	21,584	29,948
Net decrease (increase) in FDIC receivable for covered losses	21,597	4,991	-41,619
Funds collected from FDIC	45,251	125,960	222,180
Deferred income taxes	-10,181	-44,397	-8,886
Proceeds from sales of mortgage loans held for sale	34,369	45,631	60,750
Originations of mortgage loans held for sale	-36,632	-41,707	-59,432
Gains on sales of available-for-sale securities	-246	-1,081	-318
Gains on FHLB stock redemptions	0	0	-1,215
Share-based compensation expense	2,035	1,321	779
Changes in fair value of SBA servicing rights	38	0	0
Changes in other assets and other liabilities, net	10,272	4,774	29,117
Net cash provided by operating activities	42,765	75,531	172,467
Cash flows from Investing Activities
Purchase of investment securities available-for-sale	-431,402	-198,377	-77,894
Proceeds from sales and calls of investment securities available-for-sale	112,944	28,636	24,303
Proceeds from maturities and paydowns of investment securities available-for-sale	107,484	81,369	118,477
Loan originations, repayments and resolutions, net	-65,627	119,995	58,845
Purchases of loans	-23,649	0	0
Redemptions of Federal Home Loan Bank stock	0	0	5,897
Net purchases of premises and equipment	-4,348	-2,182	-1,671
Proceeds from sales of other real estate owned	72,312	77,713	80,699
Purchase of assets of payroll company	0	0	-5,700
Acquisition of Bank of Atlanta	-25,154	0	0
Net cash (used in) provided by investing activities	-257,440	107,154	202,956
Cash Flows from Financing Activities
Net increase in noninterest-bearing customer deposits	81,704	80,688	90,262
Net increase (decrease) in interest-bearing customer deposits	32,863	-100,799	-240,291
Repayment from other borrowed funds	-5,000	0	0
Net (decrease) increase in federal funds purchased and securities sold under repurchase agreements	-7,692	-3,539	6
Repurchase of stock warrants	0	-3	-55
Issuance of common stock	195	100	167
Restricted stock activity	-156	0	0
Dividends paid to shareholders	-4,830	-3,840	-1,910
Net cash provided by (used in) financing activities	97,084	-27,393	-151,821
Net (decrease) increase in cash and cash equivalents	-117,591	155,292	223,602
Cash and cash equivalents, beginning	598,749	443,457	219,855
Cash and cash equivalents, ending	481,158	598,749	443,457
Cash Paid During the Period for:
Interest expense	7,498	8,046	11,028
Income taxes	23,836	53,809	1,000
Supplemental Disclosure of Noncash Investing and Financing Activities:
Goodwill and fair value acquisition adjustments	225	0	0
Unrealized (losses) gains on securities and cash flow hedges, net of tax	-1,250	-3,358	11,205
Transfers of loans to other real estate owned	30,318	78,318	41,518
Acquisitions:
Assets acquired	185,973	0	6,245
Liabilities assumed	161,044	0	545
Net assets	$24,929	$0	$5,700

Nature_of_Business_and_Summary

Nature of Business and Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2014
Accounting Policies [Abstract]
Nature of Business and Summary of Significant Accounting Policies	Note 1: Nature of Business and Summary of Significant Accounting Policies

	The consolidated financial statements of State Bank Financial Corporation and Subsidiary (the "Company") include the financial statements of State Bank Financial Corporation and its wholly-owned subsidiary, State Bank and Trust Company (the "Bank" or "State Bank"). All intercompany transactions and balances have been eliminated in consolidation. Certain reclassifications of prior year amounts have been made to conform with the current year presentations. These reclassifications had no impact on prior years' net income, as previously reported.

	State Bank and Trust Company was organized as a Georgia-state chartered bank, which opened October 4, 2005 in Pinehurst, Georgia. The Bank is primarily regulated by the FDIC and undergoes periodic examinations by this regulatory authority. On July 24, 2009, State Bank and Trust Company closed on investment agreements under which new investors infused $292.1 million, gross (before expenses), of additional capital into the Bank, which resulted in a successor entity. This significant recapitalization resulted in a change of control and a new basis of accounting was applied. At the annual shareholders' meeting held March 11, 2010, approval was granted through proxy vote for the formation of a bank holding company. The required regulatory approval was obtained in July 2010 and the holding company reorganization was completed July 23, 2010.

	The accounting and reporting policies of the Company conform to accounting principles generally accepted in the United States of America and to prevailing practices within the financial institutions industry. The following is a summary of the significant accounting policies that the Company follows in presenting its consolidated financial statements.

	(a) Nature of Business

	State Bank Financial Corporation is a bank holding company whose primary business is conducted through 21 full service branch offices of State Bank and Trust Company, its wholly-owned banking subsidiary. Through the Bank, the Company operates a full service banking business and offers a broad range of commercial and retail banking products to its customers, which range from Metro Atlanta to Middle Georgia. The Company is subject to regulations of certain federal and state agencies and is periodically examined by those regulatory agencies. A significant portion of the Company's loan portfolio was acquired through Federal Deposit Insurance Corporate (FDIC)-assisted acquisitions of failed banks and at December 31, 2014 approximately 48.2% of the Company's purchased credit impaired loans are covered by FDIC loss share agreements, which we refer to as "covered loans".

	(b) Basis of Presentation

	In preparing the consolidated financial statements, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the balance sheet and revenue and expenses for the period. Actual results could differ significantly from those estimates.

	Significant estimates include the allowance for loan and lease losses, the valuation of real estate acquired in connection with foreclosures or in satisfaction of loans, the amount and timing of expected cash flows from purchased credit impaired loans and, with respect to covered loans, the FDIC receivable for loss share agreements, and the fair value of investment securities and other financial instruments.

	A substantial portion of the Company's loans are secured by real estate located in its market area. Accordingly, the ultimate collectability of a substantial portion of the Company's loan portfolio is susceptible to changes in the real estate market conditions.

	As defined by authoritative guidance, segment disclosures require reporting information about a company's operating segments using a “management approach.” Reportable segments are identified as those revenue-producing components for which separate financial information is produced internally and which are subject to evaluation by the chief operating decision maker in deciding how to allocate resources to segments. The Company operates as one reportable segment.

	(c) Cash and Cash Equivalents

	Cash and cash equivalents, as presented in the consolidated financial statements, includes cash on hand, cash items in process of collection and interest-bearing deposits with other financial institutions with maturities less than 90 days.
	(d) Investments

	Management determines the appropriate classifications of investment securities at the time of purchase and reevaluates such designation as needed. At December 31, 2014 and 2013, the Company classified all of its investment securities as available-for-sale. Investments available-for-sale are reported at fair value, as determined by independent quotations. Purchase premiums and discounts on investment securities are amortized and accreted to interest income using the effective interest rate method over the remaining lives of the securities, taking into consideration assumed prepayment patterns. Realized gains and losses are derived using the specific identification method for determining the cost of securities sold and are recognized on the trade date.

	Management evaluates securities for other-than-temporary impairment ("OTTI") on at least a quarterly basis, and more frequently when economic or market conditions warrant such an evaluation. In connection with the assessment for other than temporary impairment of investment securities, management obtains fair value estimates by independent quotations, assesses current credit ratings and related trends, reviews relevant delinquency and default information, assesses expected cash flows and coverage ratios, assesses the relative strength of credit support from less senior tranches of the securities, reviews average credit score data of underlying mortgages, and assesses other current data. 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.

	Unrealized holding losses, other than those determined to be other than temporary, and unrealized holding gains are excluded from net income and are reported, net of tax, in other comprehensive income and in accumulated other comprehensive income, a separate component of shareholders' equity. A decline in the market value of any available-for-sale security below cost that is deemed other than temporary results in a charge to earnings and the establishment of a new cost basis for that security. At December 31, 2014 and 2013, the Company did not have any securities with other than temporary impairment.

	Investment in stock of the Federal Home Loan Bank ("FHLB") is required of every federally insured financial institution which utilizes the FHLB's services. The investment in FHLB stock is included in "other assets" at its original cost basis, as cost approximates fair value since there is no readily determinable market value for such investments.

	(e) Organic Loans

	Organic loans are loans originated by the Company that management has the intent and ability to hold for the foreseeable future, until maturity, or until payoff. Organic loans are reported at their principal amounts outstanding, net of unearned income, net of deferred loan fees and origination costs, net of unamortized premiums or discounts on purchased participation loans, and net of the allowance for loan losses. Interest income is recognized using the simple interest method on the daily balance of the principal amount outstanding. Unearned income, primarily arising from deferred loan fees net of certain origination costs, is amortized over the lives of the underlying loans using the effective interest rate method.

	Past due status is based on the contractual terms of the loan agreement. Generally, the accrual of interest income is discontinued and loans are placed on nonaccrual status when reasonable doubt exists as to the full, timely collection of interest or principal. Interest previously accrued but not collected is reversed against current period interest income when such loans are placed on nonaccrual status. Interest on nonaccrual loans when ultimately collected is recorded as a principal reduction. Nonaccrual loans are returned to accrual status when all principal and interest amounts contractually due are brought current. In addition, the future payments must be reasonably assured along with a period of at least six months of repayment performance by the borrower depending on the contractual payment terms. When it has been determined that a loan cannot be collected in whole or in part, then the uncollectible portion is charged-off.

	The Company considers an organic loan 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. Additionally, loans for which the terms have been modified and for which (i) the borrower is experiencing financial difficulties and (ii) a concession has been granted to the borrower by the Company are considered troubled debt restructurings ("TDRs") and are included in impaired loans. The Company's policy requires that all impaired loans with contractual balances of $500,000 and greater be individually reviewed for impairment. Loans are reviewed for impairment based on the present value of expected future cash flows, discounted at the loan's effective interest rate, or the loan's observable market price, or the fair value of the collateral less disposal costs, as applicable, if the loan is collateral dependent. The Company's policy requires that large pools of smaller balance homogeneous loans, such as consumer, residential and installment loans, be collectively evaluated for impairment by the Company. Impairment losses are included in the allowance for loan losses through a provision charge to earnings. All loans considered impaired are placed on nonaccrual status in accordance with policy. The interest portion of cash receipts on impaired loans are recorded as income when received unless full recovery of principal is in doubt whereby cash received is recorded as a reduction to the Company's recorded investment in the loan.

	All organic impaired loans are reviewed at least quarterly. Reviews may be performed more frequently if material information is available before the next scheduled quarterly review. Existing valuations are reviewed to determine if additional discounts or new appraisals are required. The discounts may include the following: length of time to market and sell the property, as well as expected maintenance costs, insurance and taxes and real estate commissions on sale.

	(f) Purchased Loans

	Purchased non-credit impaired

	Loans acquired without evidence of deterioration in credit quality since origination, also referred to as purchased non-credit impaired loans (PNCI), are initially recorded at estimated fair value on the acquisition date. Premiums and discounts created when the loans are recorded at their estimated fair values at acquisition are amortized or accreted over the remaining term of the loan as an adjustment to the related loan's yield.

	The Company accounts for performing loans acquired in business combinations using the contractual cash flows method whereby premiums and discounts are recognized using the interest method. There is no allowance for loan losses established at the acquisition date for purchased loans. Following the acquisition of these loans, the policies regarding nonaccrual and impaired loan status is consistent with that described above for organic loans. A provision for loan losses is recorded should there be deterioration in these loans subsequent to the acquisition.

	Purchased credit impaired

	Purchased credit impaired (PCI) loans, defined as acquired loans, which at acquisition, management determined it was probable that the Company would be unable to collect all contractual principal and interest payments due, 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, if appropriate, an accretable discount. The nonaccretable discount, which is excluded from the carrying amount of acquired loans, is the difference between the contractually required payments and the cash flows expected to be collected at acquisition. Any excess of cash flows expected at acquisition over the estimated fair value is referred to as the accretable discount and is recognized in interest income over the remaining life of the loan when there is reasonable expectation about the amount and timing of such cash flows. The difference between actual prepayments and expected prepayments does not affect the nonaccretable discount. Subsequent decreases to the expected cash flows will generally result in a provision for loan losses. Subsequent increases in cash flows results in either a reversal of the provision for loan losses or a reclassification of the difference from nonaccretable to accretable, both have a positive impact on the accretable discount.
	All loans acquired in failed bank transactions are considered to have evidence of credit deterioration, as limited due diligence is afforded which does not allow a sufficient detailed review to classify the acquired loans into credit deterioration and performing categories. Covered loans, defined as loans covered by loss share agreements with the FDIC, are recorded at fair value at the date of acquisition, exclusive of expected cash flow reimbursements from the FDIC.

	At the time of acquisition, purchased credit impaired loans are either accounted for as specifically-reviewed or as part of a loan pool. Loan pools are created by grouping loans with similar risk characteristics, the intent being to create homogeneous pools. Loans are grouped into pools based on a combination of various factors including product type, cohort, risk classification and term. Loans remain in the assigned pool until the individual pools have resolved. Gains and losses on individual loans within pools are deferred and retained in the pools until the pool closes, which is either when all the loans are resolved or the pool’s aggregate recorded investment reaches zero.

	(g) Allowance for Loan and Lease Losses ("ALLL")

	The ALLL represents the amount considered adequate by management to absorb losses inherent in the loan portfolio at the balance sheet date. The ALLL is adjusted through provisions for loan losses charged or credited to operations. The provisions are generated through loss analyses performed on organic loans, estimated additional losses arising on PNCI loans subsequent to acquisition and impairment recognized as a result of decreased expected cash flows on PCI loans due to further credit deterioration since the previous quarterly cash flow re-estimation. The ALLL consists of both specific and general components. Individual loans are charged off against the ALLL when management determines them to be uncollectible. Subsequent recoveries, if any, of loans previously charged-off are credited to the ALLL.

All known and inherent losses that are both probable and reasonable to estimate are recorded. While management utilizes available information to recognize losses on loans, future additions to the allowance may be necessary based on changes in economic conditions. In addition, various regulatory agencies, as an integral part of their examination process, periodically review the allowance. Such agencies may require adjustments to the ALLL based on their judgment about information available at the time of their examination.

The Company assesses the adequacy of the ALLL quarterly with respect to organic and purchased loans. The assessment begins with a standard evaluation and analysis of the loan portfolio. All loans are consistently graded and monitored for changes in credit risk and possible deterioration in the borrower’s ability to repay the contractual amounts due under the loan agreements.

Allowance for loan and lease losses for organic loans:

The ALLL for organic loans consists of two components:

(1)a specific amount against identified credit exposures where it is probable the Company will be unable to collect all amounts due according to the contractual terms of the loan agreements; and
(2)a general amount based upon historical losses that are then adjusted for qualitative factors representative of various economic indicators and risk characteristics of the loan portfolio.

Management establishes the specific amount by examining impaired loans. The majority of the Company's impaired loans are collateral dependent; therefore, nearly all of the specific allowances are calculated based on the fair value of the collateral less disposal costs, if applicable.

Management establishes the general amount by reviewing the remaining loan portfolio (excluding those impaired loans discussed above) and incorporating allocations based on historical losses. The calculation of the general amount is subjected to qualitative factors that are somewhat subjective. The qualitative testing attempts to correlate the historical loss rates with current economic factors and current risks in the portfolio. The qualitative factors consist of but are not limited to:

(1)economic factors including changes in the local or national economy;
(2)the depth of experience in lending staff;
(3)asset quality trends; and
(4)seasoning and growth rate of the portfolio segments.

After assessing the applicable factors, the remaining amount is evaluated based on management's experience and the level of the organic ALLL is compared with historical trends and peer information as a reasonableness test.

Allowance for loan and lease losses for purchased loans:

Purchased loans are initially recorded at their acquisition date fair values. The carryover of allowance for loan losses is prohibited as any credit losses in the loans are included in the determination of the fair value of the loans at the acquisition date. Fair values for purchased loans are based on a discounted cash flow methodology that involves assumptions and judgments as to credit risk, default rates, loss severity, collateral values, discount rates, payment speeds, prepayment risk and liquidity risk.

The Company maintains an ALLL on purchased loans based on credit deterioration subsequent to the acquisition date. For purchased credit impaired loans accounted for under ASC 310-30, management establishes an allowance for credit deterioration subsequent to the date of acquisition by quarterly re-estimating expected cash flows with any decline in expected cash flows recorded as impairment in the provision for loan losses. Impairment is measured as the excess of the recorded investment in a loan over the present value of expected future cash flows discounted at the pre-impairment accounting yield of the loan. For any increases in cash flows expected to be collected, the Company first reverses only previously recorded ALLL, then adjusts the amount of accretable yield recognized on a prospective basis over the loan’s remaining life.

For purchased loans that are not deemed impaired at acquisition, also referred to as purchased non-credit impaired loans, credit discounts representing the principal losses expected over the life of the loan are a component of the initial fair value and the discount is accreted to interest income over the life of the asset. Subsequent to the purchase date, the method used to evaluate the sufficiency of the credit discount is similar to originated loans, and if necessary, additional reserves are recognized in the allowance for loan and lease losses.

For loans covered by loss share agreements with the FDIC, the required allowance is recorded gross and the related estimated reimbursement for losses due from the FDIC is recorded as an adjustment to the FDIC receivable.

(h) Mortgage Loans Held for Sale

Loans originated and intended for sale in the secondary market are carried at the lower of cost or estimated fair value. Estimated fair value is determined on the basis of existing forward commitments or the current market value of similar loans. Net unrealized losses, if any, are recognized through a valuation allowance by charges to income.

(i) Other Real Estate Owned

Other real estate owned consists of real property acquired through mergers and acquisitions, acquired through foreclosure in satisfaction of loans receivable, and bank premises formerly, but no longer, used for a specific business purpose. Other real estate is distinguished between organic and acquired consistent with the organic and purchased loan categories, respectively, at time of foreclosure.

Real estate acquired through foreclosure of loans, consisting of properties obtained through foreclosure proceedings or acceptance of a deed in lieu of foreclosure, is reported on an individual asset basis at the lower of cost or fair value, less disposal costs. Fair value is determined on the basis of current appraisals, comparable sales, and other estimates of value obtained principally from independent sources. When properties are acquired through foreclosure of loans, any excess of the loan balance at the time of foreclosure over the fair value of the real estate held as collateral, less estimated selling costs, is recognized and charged to the allowance for loan losses. Based upon management's evaluation of the real estate acquired through foreclosure, additional expense, when necessary, is recorded in current period earnings in an amount sufficient to reflect any estimated declines in fair value. Gains or losses recognized on the disposition of the properties are recorded in net costs of operations of other real estate in the consolidated statements of income.

Other real estate covered under loss share agreements with the FDIC is reported exclusive of expected reimbursement cash flows from the FDIC. Subsequent adjustments to the estimated recoverable value of the other real estate result in a reduction of other real estate and a charge to other expense. The FDIC receivable is increased for the estimated amount to be reimbursed, with a corresponding offsetting amount recorded to other expense.

Banking premises are transferred at the lower of carrying value or fair value, less estimated selling costs and any write-down is expensed as incurred.

Costs of improvements to real estate are capitalized, while costs associated with holding the real estate are charged to income. Costs associated with holding covered other real estate are charged to income, net of any expected reimbursements from the FDIC relating to covered external expenses.

(j) Premises and Equipment

Premises and equipment are stated at cost, less accumulated depreciation, which is computed using the straight-line method over the estimated useful lives of the assets. The estimated useful lives of the assets range from 10 to 25 years for buildings and improvements and 3 to 15 years for furniture, fixtures, and equipment. Costs of improvements are capitalized and depreciated, while operating expenses are charged to current earnings.
(k) Goodwill and Other Intangibles

Goodwill represents the excess of the purchase price over the fair value of the net identifiable assets acquired in a business combination. Goodwill and other intangibles deemed to have an indefinite life are not amortized but instead are subject to review for impairment annually, or more frequently if deemed necessary. Also in connection with business combinations, the Company records core deposit intangibles, representing the value of the acquired core deposit base, and other identifiable intangible assets. Core deposit intangibles and other identifiable intangible assets are amortized on a straight-line basis over their estimated useful lives ranging up to 5 years.

(l) Small Business Administration ("SBA") Servicing Rights

All sales of SBA loans, consisting of the guaranteed portion, are executed on a servicing retained basis. The standard sale structure under the SBA Secondary Participation Guaranty Agreement provides for the Company to retain a portion of the cash flow from the interest payment received on the loan. This cash flow is commonly known as a servicing spread. For any guaranteed loans sold at a premium, SBA regulations require the lender to keep a minimum 100 basis points in servicing spread which includes a minimum service fee of 40 basis points and a minimum premium protection fee of 60 basis points. The servicing spread is recognized as a servicing asset to the extent the spread exceeds adequate compensation for the servicing function. The fair value of the servicing asset is measured on a recurring basis at the present value of future cash flows using market-based discount assumptions. The future cash flows for each asset are based on their unique characteristics and 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 "other noninterest expense" on the consolidated statements of income.

Servicing fee income is recorded for fees earned for servicing loans. The fees are based on a contractual percentage of the outstanding principal or a fixed amount per loan and are recorded as income when earned.

(m) FDIC Receivable for Loss Share Agreements and Clawback Liability

The FDIC receivable for loss share agreements is measured separately from the related covered assets and is not contractually embedded in the assets or transferable should the assets be sold. The fair value of the FDIC receivable was estimated at acquisition using projected cash flows related to loss share agreements based on the expected reimbursements for losses using the applicable loss share percentages. These cash flows were discounted to reflect the estimated timing of the receipt of the loss share reimbursements from the FDIC. The FDIC receivable is reviewed and updated prospectively as loss estimates related to covered assets change and as reimbursements are received or are expected to be received from the FDIC. Improvements in the credit quality or cash flows of covered loans (reflected as an adjustment to yield and accreted into income over the remaining life of the covered loans) decrease the basis of the FDIC receivable, with such decreases being amortized into income over the remaining life of the loan or life of the loss share agreement, whichever is shorter. Any applicable true-up payments owed the FDIC for loss share agreements with clawback provisions are discounted to reflect the estimated timing of the payment and such amount is reported as a liability in "other liabilities" on the consolidated statements of financial condition. In addition, recoveries of FDIC-indemnified losses on loans must be reimbursed to the FDIC during the coverage period under the loss share agreements and up to three years after coverage expires for commercial loans.







(n) Derivative Instruments and Hedging Activities

The Company enters into derivative financial instruments to manage interest rate risk, facilitate asset/liability management strategies and manage other exposures. These instruments may include interest rate swaps and interest rate caps and floors. All derivative financial instruments are recognized on the consolidated balance sheets as other assets or other liabilities, as applicable, at estimated fair value. The Company enters into master netting agreements with counterparties and/or requires collateral to cover exposures. In most cases, counterparties post at a zero threshold regardless of rating.

Interest rate swaps are agreements to exchange interest payments based upon notional amounts. Interest rate swaps subject the Company to market risk associated with changes in interest rates, as well as the credit risk that the counterparty will fail to perform. Option contracts involve rights to buy or sell financial instruments on a specified date or over a period at a specified price. These rights do not have to be exercised. Some option contracts such as interest rate caps, involve the exchange of cash based on changes in specified indices. Interest rate caps are contracts to hedge interest rate increases based on a notional amount. Interest rate caps subject the Company to market risk associated with changes in interest rates, as well as the credit risk that the counterparty will fail to perform.

Derivative financial instruments are designated, based on the exposure being hedged, as either fair value or cash flow hedges. Fair value hedge relationships mitigate exposure to the change in fair value of an asset, liability or firm commitment. Under the fair value hedging model, gains or losses attributable to the change in fair value of the derivative instrument, as well as the gains and losses attributable to the change in fair value of the hedged item, are recognized in other noninterest income in the period in which the change in fair value occurs. Hedge ineffectiveness is recognized as other noninterest income to the extent the changes in fair value of the derivative do not offset the changes in fair value of the hedged item. The corresponding adjustment to the hedged asset or liability is included in the basis of the hedged item, while the corresponding change in the fair value of the derivative instrument is recorded as an adjustment to other assets or other liabilities, as applicable. Cash flow hedge relationships mitigate exposure to the variability of future cash flows or other forecasted transactions. For cash flow hedge relationships, the effective portion of the gain or loss related to the derivative instrument is recognized as a component of accumulated other comprehensive income (loss). The ineffective portion of the gain or loss related to the derivative instrument, if any, is recognized in earnings as other noninterest income during the period of change. Amounts recorded in accumulated other comprehensive income (loss) are recognized in earnings in the period or periods during which the hedged item impacts earnings.

The Company formally documents all hedging relationships between hedging instruments and the hedged items, as well as its risk management objective and strategy for entering into various hedge transactions. Methodologies related to hedge effectiveness and ineffectiveness are consistent between similar types of hedge transactions and typically include (i) statistical regression analysis of changes in the cash flows of the actual derivative and a perfectly effective hypothetical derivative, and (ii) statistical regression analysis of changes in the fair values of the actual derivative and the hedged item. The Company performs retrospective and prospective effectiveness testing using quantitative methods and does not assume perfect effectiveness through the matching of critical terms. Assessments of hedge effectiveness and measurements of hedge ineffectiveness are performed at least quarterly for ongoing effectiveness.

(o) Bank-Owned Life Insurance ("BOLI")

The Company has purchased life insurance policies on certain key executives. Bank-owned life insurance is recorded at the amount that can be realized under the insurance contract at the balance sheet date, which is the cash surrender value that is probable at settlement. Increases to cash surrender values are recorded as a component of "other noninterest income" on the consolidated statements of income. The Company has entered into a split dollar agreement with each of the executives whereby the executive’s designated beneficiary will receive a portion of the death benefit upon the executive officer’s death. The Company uses the cost of insurance method whereby a liability is recorded relating to the benefit provided that extends to post-retirement periods.

(p) Share-Based Compensation

The Company has an equity compensation plan providing for the grant of equity awards, which is described more fully in Note 17. The Company uses the fair value method of recognizing expense for share-based compensation, whereby compensation cost is measured at the grant date based on the value of the award and is recognized on a straight-line basis over the vesting period. Compensation expense relating to equity awards is reflected in net income as part of "salaries and employee benefits" on the consolidated statements of income.

(q) Income Taxes

The Company recognizes deferred tax assets and liabilities for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax basis. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. In assessing the realization of deferred tax assets, management considers whether it is more likely than not that some portion or all of the deferred tax assets will not be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become deductible. Management considers the scheduled reversal of deferred tax liabilities, projected future taxable income, and tax planning strategies by jurisdiction and entity in making this assessment. Interest and penalties related to the Company’s tax positions are recognized as a component of the income tax provision.

(r) Comprehensive Income

In addition to net income for the period, comprehensive income for the Company consists of changes in unrealized holding gains and losses on investments classified as available-for-sale and changes in fair value of the effective portion of derivative financial instruments designated as cash flow hedges. The changes are reported net of income taxes and reclassification adjustments.

(s) Acquisitions

Accounting principles generally accepted in the United States of America ("US GAAP") require that the acquisition method of accounting, formerly referred to as the purchase method, be used for all business combinations and that an acquirer be identified for each business combination. Under US GAAP, the acquirer is the entity that obtains control of one or more businesses in the business combination, and the acquisition date is the date the acquirer achieves control. US GAAP requires that the acquirer recognize the fair value of assets acquired, liabilities assumed, and any noncontrolling interest in the acquiree at the acquisition date.

(t) Basic and Diluted Net Income Per Share

Basic net income per share excludes dilution and is computed by dividing net income by the weighted average number of common shares outstanding for the period. Diluted net income per share reflects the potential dilution that could occur if securities or other contracts to issue common stock were exercised or converted into common stock or resulted in the issuance of common stock that then shared in the net income of the Company. Diluted net income per share is computed by dividing net income by the total of the weighted average number of shares outstanding plus the dilutive effect of the outstanding options, warrants and restricted stock awards.

(u) Recent Accounting Pronouncements

In January 2014, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update (ASU) 2014-04, Receivables—Troubled Debt Restructurings by Creditors (Subtopic 310-40): Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure. The new ASU clarifies when an in substance repossession or foreclosure occurs – that is, when a creditor should be considered to have received physical possession of residential real estate property collateralizing a consumer mortgage loan such that the loan receivable should be derecognized and the real estate property recognized. The ASU requires a creditor to reclassify a collateralized consumer mortgage loan to real estate property upon obtaining legal title to the real estate collateral, or when the borrower voluntarily conveys all interest in the real estate property to the lender to satisfy the loan through a deed in lieu of foreclosure or similar legal agreement. The amendments in this update are effective for fiscal years, and interim periods within those years, beginning after December 15, 2014. The guidance is not expected to have a significant impact on the Company's financial position, results of operations or disclosures.

In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606). The new ASU implements a common revenue standard that clarifies the principles for recognizing revenue from contracts with customers. The new accounting guidance, which does not apply to financial instruments, is effective for fiscal years, and interim periods within those years, beginning after December 15, 2016 and is not expected to have a significant impact on the Company's financial position, results of operations or disclosures.

In August 2014, the FASB issued ASU 2014-14, Receivables - Troubled Debt Restructurings by Creditors (Subtopic 310-40): Classification of Certain Government-Guaranteed Mortgage Loans upon Foreclosure, to address the diversity in practice regarding the classification and measurement of foreclosed loans which were part of a government-sponsored loan guarantee program (e.g. HUD, FHA, VA). The ASU outlines certain criteria that, if met, the loan (residential or commercial) should be derecognized and a separate other receivable should be recorded upon foreclosure at the amount of the loan balance (principal and interest) expected to be recovered from the guarantor. This ASU is effective for annual reporting periods beginning after December 15, 2014, including interim periods within that reporting period. Early adoption is permitted, provided the entity has adopted ASU 2014-04. The guidance is not expected to have a significant impact on the Company's financial position, results of operations or disclosures.

In August 2014, the FASB issued ASU 2014-15, Presentation of Financial Statements - Going Concern (Subtopic 205-40): Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern, to reduce diversity in the timing and content of going concern disclosures. This ASU clarifies management’s responsibility to evaluate and provide related disclosures if there are any conditions or events, as a whole, that raise substantial doubt about the entity’s ability to continue as a going concern for one year after the date the financial statements are issued (or, if applicable, available to be issued). The amendments in this ASU are effective for the annual period ending after December 15, 2016, and for annual and interim periods thereafter. The guidance is not expected to have a significant impact on the Company's financial position, results of operations or disclosures.

In November 2014, the FASB issued ASU 2014-16, Derivatives and Hedging (Topic 815): Determining Whether the Host Contract in a Hybrid Financial Instrument Issued in the Form of a Share Is More Akin to Debt or to Equity, to clarify how current U.S. GAAP should be interpreted in evaluating the economic characteristics and risks of a host contract in a hybrid financial instrument that is issued in the form of a share. Specifically, the amendments clarify that an entity should consider all relevant terms and features, including the embedded derivative feature being evaluated for bifurcation, in evaluating the nature of the host contract. The assessment of the substance of the relevant terms and features should incorporate a consideration of: (1) the characteristics of the terms and features themselves; (2) the circumstances under which the hybrid financial instrument was issued or acquired; and (3) the potential outcomes of the hybrid financial instrument, as well as the likelihood of those potential outcomes. The amendments in this ASU apply to all entities that are issuers of, or investors in, hybrid financial instruments that are issued in the form of a share. The amendments in this ASU are effective for annual reporting periods beginning after December 15, 2015, including interim periods within that reporting period. Early adoption is permitted. The impact of the guidance on the Company's financial position, results of operations or disclosures has not yet been evaluated.

In November 2014, the FASB issued ASU 2014-17, Business Combinations (Topic 805): Pushdown Accounting (a consensus of the FASB Emerging Issues Task Force), to amend existing guidance related to the accounting by an acquired entity upon a change-in-control event. The amendments provide an acquired entity with an option to apply pushdown accounting in its separate financial statements upon occurrence of an event in which an acquirer obtains control of the acquired entity. An acquired entity may elect the option to apply pushdown accounting in the reporting period in which the change-in-control event occurs. An acquired entity should determine whether to elect to apply pushdown accounting for each individual change-in-control event in which an acquirer obtains control of the acquired entity. If pushdown accounting is not applied in the reporting period in which the change-in-control event occurs, an acquired entity will have the option to elect to apply pushdown accounting in a subsequent reporting period to the acquired entity's most recent change-in-control event. An election to apply pushdown accounting in a reporting period after the reporting period in which the change-in-control event occurred should be considered a change in accounting principle. If pushdown accounting is applied to an individual change-in-control event, that election is irrevocable. The amendments in this ASU are effective on November 18, 2014. After the effective date, an acquired entity can make an election to apply the guidance to future change-in-control events or to its most recent change-in-control event. However, if the financial statements for the period in which the most recent change-in-control event occurred already have been issued or made available to be issued, the application of this guidance would be a change in accounting principle. The guidance did not have a material impact on the Company's financial position, results of operations or disclosures because regulators require financial institutions to apply push down accounting for change-in-control acquisitions.

Acquisitions

Acquisitions	12 Months Ended
	Dec. 31, 2014
Business Combinations [Abstract]
Acquisitions	Note 2: Acquisitions

	Acquisition of Atlanta Bancorporation, Inc. and Bank of Atlanta

	On October 1, 2014, the Company completed the acquisition of Atlanta Bancorporation, Inc. and its wholly-owned subsidiary bank, Bank of Atlanta. Atlanta Bancorporation, Inc. was merged into the Company, immediately followed by the merger of Bank of Atlanta into the Bank. The Company paid approximately $25.2 million in cash for all of the outstanding shares of Atlanta Bancorporation.
	The acquisition of Bank of Atlanta 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 $225,000 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 Atlanta Bancorporation, Inc.			Fair Value Adjustments				As Recorded by the Company
	Assets
	Cash and due from banks	$	4,925		$	—			$	4,925

	Investment securities	45,060			139			(a)	45,199

	Loans, net	124,614			(3,436		)	(b)	121,178

	Other real estate owned	2,960			(1,340		)	(c)	1,620

	Core deposit intangible	—			1,460			(d)	1,460

	SBA servicing rights	1,509			—				1,509

	Other assets	7,036			3,046			(e)	10,082

	Total assets acquired	$	186,104		$	(131	)		$	185,973

	Liabilities
	Deposits:
	Noninterest-bearing	$	27,453		$	—			$	27,453

	Interest-bearing	121,035			302			(f)	121,337

	Total deposits	148,488			302				148,790

	Securities sold under agreements to repurchase	6,476			—				6,476

	FHLB advances	5,000			—				5,000

	Other liabilities	485			293			(g)	778

	Total liabilities assumed	160,449			595				161,044

	Net assets acquired	$	25,655		$	(726	)		24,929

	Cash consideration paid								(25,154		)
	Goodwill								$	225




	Explanation of fair value adjustments


	(a)	Adjustment reflects the gain on liquidation of certain securities immediately after close that was deemed to be primarily from Bank of Atlanta understatement of fair value rather than changes in market value.
	(b)	Adjustment reflects the fair value adjustment based on the Bank's third party valuation report and includes the adjustment to eliminate the recorded allowance for loan losses.
	(c)	Adjustment reflects the fair value adjustment based on the 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 the Bank's third party valuation report.
	(e)	Adjustment reflects the fair value adjustment based on the Bank's evaluation of acquired other assets and includes adjustments for deferred tax assets largely related to net operating losses that are deductible under Section 382.
	(f)	Adjustment reflects the fair value adjustment based on the Bank's evaluation of the acquired deposits.
	(g)	Adjustment reflects the fair value adjustment based on the Bank's evaluation of other liabilities and to record certain liabilities directly attributable to the acquisition of Bank of Atlanta.

	The following table discloses the impact of the merger with Bank of Atlanta (excluding the impact of merger-related expenses) since the acquisition on October 1, 2014 through December 31, 2014 (dollars in thousands). The table also presents certain pro forma information as if Bank of Atlanta had been acquired on January 1, 2014. These results combine the historical results of Bank of Atlanta in the Company's consolidated statement of income and, while certain adjustments were made for the estimated impact of certain fair value adjustments and other acquisition-related activity, they are not indicative of what would have occurred had the acquisition taken place on January 1, 2014 or 2013, respectively. Merger-related costs of $461,000 are included in the Company's consolidated statements of income for the year ended December 31, 2014 and are not included in the proforma statements below.


	Actual from acquisition date through December 31			Pro Forma Years Ended
				31-Dec
	2014			2014				2013
Net interest income	$	1,547		$	151,820			$	192,595

Net income	$	839		$	32,405			$	13,384

Earnings per share:
Basic				$	1.01			$	0.42

Diluted				$	0.96			$	0.4


The following is a summary of the purchased credit impaired loans acquired in the Bank of Atlanta transaction on October 1, 2014 (dollars in thousands):


	Purchased
	Credit Impaired
Contractually required principal and interest at acquisition	$	16,623

Contractual cash flows not expected to be collected (nonaccretable difference)	(7,002		)
Expected cash flows at acquisition	9,621

Accretable difference	(926		)
Basis in acquired loans at acquisition - estimated fair value	$	8,695


On October 1, 2014, the fair value of the purchased non-credit impaired loans acquired in the Bank of Atlanta transaction was $112.5 million. The contractual balance of the purchased non-credit impaired loans at acquisition was $117.6 million, of which, $2.1 million was the amount of contractual cash flows not expected to be collected.

Acquisition of Altera Payroll Inc.

On October 15, 2012, the Bank entered into an Asset Purchase Agreement with Altera Payroll, Inc., pursuant to which the Bank acquired substantially all of the assets, and assumed certain liabilities of Altera Payroll, Inc. The aggregate purchase price was $5.7 million in cash. Assets acquired totaled $6.2 million, including $3.8 million of goodwill and $2.4 million of other intangibles.

Subsequent_Events_unaudited

Subsequent Events (unaudited)	12 Months Ended
Subsequent Events (unaudited)	Dec. 31, 2014
Subsequent Events [Abstract]
Subsequent Events (unaudited)	Note 3: Subsequent Events (unaudited)

	Merger with Georgia-Carolina Bancshares, Inc.

	State Bank Financial Corporation completed the merger with Georgia-Carolina Bancshares, Inc. (GECR) on January 1, 2015, at which time GECR was merged into the Company. First Bank of Georgia, a wholly-owned bank subsidiary of GECR, became a separate bank subsidiary of the Company.

	At December 31, 2014, First Bank of Georgia had approximately $517.4 million of total assets, $333.8 million of loans, $416.8 million of deposits and seven banking offices in the Augusta, Georgia market.

	With this transaction completed, State Bank Financial has approximately $3.3 billion in total assets and 28 banking offices in the Metropolitan Atlanta, Middle Georgia (including Macon) and Augusta, Georgia.

	Under the terms of the merger agreement, shareholders of GECR common stock received $8.85 in cash and .794 shares of STBZ common stock for each outstanding share of GECR common stock. The number of STBZ shares issued in the merger was based on the average trading price of STBZ common stock during the 20-trading-day period ended December 24, 2014.

Investment_Securities

Investment Securities	12 Months Ended
	Dec. 31, 2014
Available-for-sale 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):


			December 31, 2014														31-Dec-13
	Investment Securities Available-for-Sale		Amortized				Unrealized				Unrealized			Fair Value			Amortized			Unrealized		Unrealized		Fair Value
			Cost				Gains				Losses						Cost			Gains		Losses
	U.S. Government securities		$	116,830			$	615			$	96		$	117,349		$	80,692		$	460	$	41	$	81,111

	States and political subdivisions		5,881				20				4			5,897			9,317			51		1		9,367

	Residential mortgage-backed securities — nonagency		109,344				5,780				93			115,031			110,900			6,766		19		117,647

	Residential mortgage-backed securities — agency		351,769				1,874				1,115			352,528			176,503			1,380		1,957		175,926

	Asset-backed securities		26,820				—				120			26,700			2,936			4		—		2,940

	Corporate securities		22,577				37				33			22,581			—			—		—		—

	Equity securities		—				—				—			—			51			6		—		57

	Total investment securities available-for-sale		$	633,221			$	8,326			$	1,461		$	640,086		$	380,399		$	8,667	$	2,018	$	387,048


	The amortized cost and estimated fair value of available-for-sale debt securities by contractual maturities are summarized in the table below (dollars in thousands):


			Distribution of Maturities (1)
	December 31, 2014		1 Year or				5-Jan				10-May			After 10			Total
			Less				Years				Years			Years
	Amortized Cost:
	U.S. Government securities		$	20,005			$	74,409			$	3,938		$	18,478		$	116,830

	States and political subdivisions		4,023				1,858				—			—			5,881

	Residential mortgage-backed securities — nonagency		—				—				—			109,344			109,344

	Residential mortgage-backed securities — agency		—				—				298,786			52,983			351,769

	Asset-backed securities		—				—				4,910			21,910			26,820

	Corporate securities		—				22,577				—			—			22,577

	Total debt securities		$	24,028			$	98,844			$	307,634		$	202,715		$	633,221


	Fair Value:
	U.S. Government securities		$	20,025			$	74,462			$	4,092		$	18,770		$	117,349

	States and political subdivisions		4,028				1,869				—			—			5,897

	Residential mortgage-backed securities — nonagency		—				—				—			115,031			115,031

	Residential mortgage-backed securities — agency		—				—				299,589			52,939			352,528

	Asset-backed securities		—				—				4,875			21,825			26,700

	Corporate securities		—				22,581				—			—			22,581

	Total debt securities		$	24,053			$	98,912			$	308,556		$	208,565		$	640,086




(1) Actual cash flows may differ from contractual maturities as borrowers may prepay obligations without prepayment penalties.

The following table provides information regarding securities with unrealized losses (dollars in thousands):


		Less than 12 Months								12 Months or More						Total
		Fair Value				Unrealized Losses				Fair Value			Unrealized Losses			Fair Value			Unrealized Losses
Investment Securities Available-for-Sale
December 31, 2014
U.S. Government securities		$	37,649			$	96			$	—		$	—		$	37,649		$	96

States and political subdivisions		3,041				4				—			—			3,041			4

Residential mortgage-backed securities — nonagency		17,295				71				834			22			18,129			93

Residential mortgage-backed securities — agency		118,514				480				39,180			635			157,694			1,115

Asset-backed securities		21,700				120				—			—			21,700			120

Corporate securities		15,530				33				—			—			15,530			33

Total temporarily impaired securities		$	213,729			$	804			$	40,014		$	657		$	253,743		$	1,461


December 31, 2013
U.S. Government securities		$	16,340			$	41			$	—		$	—		$	16,340		$	41

States and political subdivisions		699				1				—			—			699			1

Residential mortgage-backed securities — nonagency		—				—				956			19			956			19

Residential mortgage-backed securities — agency		107,536				1,868				4,411			89			111,947			1,957

Total temporarily impaired securities		$	124,575			$	1,910			$	5,367		$	108		$	129,942		$	2,018


At December 31, 2014, the Company held 54 investment securities that were in an unrealized loss position. Market changes in interest rates and credit spreads may result in temporary unrealized losses as the 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 December 31, 2014, there was no intent to sell any of the securities available-for-sale in an unrealized loss position, and it is more likely than not that 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 available-for-sale are summarized in the following table (dollars in thousands):


	31-Dec
	2014				2013				2012
Proceeds from sales and calls	$	112,944			$	28,636			$	24,303


Gross gains on securities available-for-sale	$	266			$	1,081			$	319

Gross losses on securities available-for-sale	(20		)		—				(1		)

Net realized gains on securities available-for-sale	$	246			$	1,081			$	318


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 $283.4 million and $132.0 million at December 31, 2014 and December 31, 2013, respectively, were pledged to secure public deposits.

Loans

Loans	12 Months Ended
	Dec. 31, 2014
Receivables [Abstract]
Loans	Note 5: Loans

	Concurrently with each of the Bank’s 12 failed bank transactions, the Bank entered into loss share agreements with the FDIC that covered certain of the acquired loans and other real estate owned. Historically, the Company has referred to loans subject to loss share agreements with the FDIC as “covered loans” and loans not subject to loss share agreements with the FDIC as “noncovered loans.” However, beginning in July 2014, the commercial loss share agreements for the Bank’s earliest and largest failed bank transactions began to expire and any future losses on these formerly covered loans after such coverage expired will no longer be eligible for reimbursement from the FDIC. Because less than 10% of our total loans were covered by loss share agreements with the FDIC at December 31, 2014, we have changed the way we refer to loans that we acquired in our 12 FDIC assisted transactions in this report. We will now generally discuss our loan portfolio using three categories: (1) organic loans, which refers to loans originated by us, (2) purchased non-credit impaired loans, which refers to loans acquired in our acquisitions which do not show signs of credit deterioration at acquisition, and (3) purchased credit impaired loans, which refers to loans we acquired which, at acquisition, we determined it was probable that we would be unable to collect all contractual principal and interest payments due. In addition, in certain circumstances, we will continue to refer to loans that are covered by the FDIC loss share agreements as "covered loans." All of the loans we acquired in our 12 FDIC assisted transactions, which we refer to as our failed bank transactions, and all of the loans acquired in our purchase of a loan portfolio from the FDIC in July 2014, were deemed purchased credit impaired loans at acquisition.

	Loans are summarized as follows (dollars in thousands):


			31-Dec
	Loans		2014				2013
	Construction, land & land development		$	337,697			$	286,426

	Other commercial real estate		694,951				618,047

	Total commercial real estate		1,032,648				904,473

	Residential real estate		213,910				162,075

	Owner-occupied real estate		253,844				229,294

	Commercial, financial & agricultural		104,518				75,295

	Leases		19,959				—

	Consumer		9,650				9,832

	Total loans		1,634,529				1,380,969

	Allowance for loan and lease losses		(28,638		)		(34,065		)
	Total loans, net		$	1,605,891			$	1,346,904


	Organic loans are summarized as follows (dollars in thousands):


			31-Dec
	Organic Loans		2014				2013
	Construction, land & land development		$	310,987			$	251,043

	Other commercial real estate		609,478				550,474

	Total commercial real estate		920,465				801,517

	Residential real estate		91,448				66,835

	Owner-occupied real estate		188,933				174,858

	Commercial, financial & agricultural		90,930				71,006

	Leases		19,959				—

	Consumer		8,658				9,259

	Total organic loans (1)		1,320,393				1,123,475

	Allowance for loan and lease losses		(18,392		)		(16,656		)
	Total organic loans, net		$	1,302,001			$	1,106,819




	(1) Includes net deferred loan fees that totaled approximately $4.5 million and $2.6 million at December 31, 2014 and 2013, respectively.

	Purchased non-credit impaired loans, net of related discounts, are summarized as follows (dollars in thousands):


		31-Dec
Purchased Non-Credit Impaired Loans		2014				2013
Construction, land & land development		$	2,166			$	—

Other commercial real estate		26,793				—

Total commercial real estate		28,959				—

Residential real estate		43,669				—

Owner-occupied real estate		22,743				—

Commercial, financial & agricultural		11,635				—

Consumer		791				—

Total purchased non-credit impaired loans (1)		107,797				—

Allowance for loan and lease losses		—				—

Total purchased non-credit impaired loans, net		$	107,797			$	—




(1) Includes net discounts that totaled approximately $5.2 million at December 31, 2014.

Purchased credit impaired loans, net of related discounts, are summarized as follows (dollars in thousands):


		31-Dec
Purchased Credit Impaired Loans		2014				2013
Construction, land & land development		$	24,544			$	35,383

Other commercial real estate		58,680				67,573

Total commercial real estate		83,224				102,956

Residential real estate		78,793				95,240

Owner-occupied real estate		42,168				54,436

Commercial, financial & agricultural		1,953				4,289

Consumer		201				573

Total purchased credit impaired loans (1)		206,339				257,494

Allowance for loan and lease losses		(10,246		)		(17,409		)
Total purchased credit impaired loans, net		$	196,093			$	240,085




(1) Loans covered by loss share agreements with the FDIC were approximately $99.5 million and $257.5 million at December 31, 2014 and 2013, respectively.

Changes in the carrying value of purchased credit impaired loans are presented in the following table (dollars in thousands):


		31-Dec
Purchased Credit Impaired Loans		2014				2013
Balance, beginning of year		$	240,085			$	419,235

Accretion of fair value discounts		78,857				122,466

Fair value of acquired loans		32,344				—

Reductions in principal balances resulting from repayments, write-offs and foreclosures		(162,356		)		(339,685		)
Change in the allowance for loan and lease losses on purchased credit impaired loans		7,163				38,069

Balance, end of year		$	196,093			$	240,085


Purchased credit impaired loans are initially recorded at fair value at the acquisition date. Subsequent decreases in the amount of cash expected to be collected from the borrower results in a provision for loan 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 in the reversal of any previously-recorded provision for loan 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. Purchased credit impaired loans include covered loans. Covered loans are reported at their recorded investment excluding the expected reimbursement from the FDIC, under the applicable loss share agreement.

Changes in the value of the accretable discount are presented in the following table as of the dates indicated (dollars in thousands):


		31-Dec
Changes in Accretable Discount		2014				2013				2012
Balance, beginning of year		$	185,024			$	172,804			$	230,697

Additions from acquisitions		7,351				—				—

Accretion		(78,857		)		(122,466		)		(102,413		)
Transfers to accretable discounts and exit events, net		6,543				134,686				44,520

Balance, end of year		$	120,061			$	185,024			$	172,804


The accretable discount changes over time as the purchased credit impaired loan portfolios season. 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 acquired loans.

At December 31, 2014 and 2013, in accordance with Company policy, there were no loans to executive officers, directors and/or their affiliates.

Allowance_for_Loan_and_Lease_L

Allowance for Loan and Lease Losses (ALLL)	12 Months Ended
	Dec. 31, 2014
Loans and Leases Receivable, Allowance [Abstract]
Allowance for Loan and Lease Losses (ALLL)	Note 6: Allowance for Loan and Lease Losses (ALLL)

	The following tables summarize the Company’s loan loss experience on organic loans for the periods indicated (dollars in thousands):


			31-Dec
	Organic Loans		2014				2013				2012
	Balance, beginning of period		$	16,656			$	14,660			$	10,207

	Loans charged-off		(1,552		)		(417		)		(669		)
	Recoveries of loans previously charged off		513				493				87

	Net (charge-offs) recoveries		(1,039		)		76				(582		)

	Provision for loan losses		2,775				1,920				5,035

	Balance, end of period		$	18,392			$	16,656			$	14,660


	The Company did not have any purchased non-credit impaired loans until its acquisition of Bank of Atlanta in 2014. There was no allowance for loan and lease losses on purchased non-credit impaired loans at December 31, 2014.

	The following tables summarize the Company’s loan loss experience on purchased credit impaired loans for the periods indicated (dollars in thousands):


			31-Dec
	Purchased Credit Impaired Loans		2014				2013				2012
	Balance, beginning of period		$	17,409			$	55,478			$	59,277

	Loans charged-off		(17,778		)		(35,989		)		(61,976		)
	Recoveries of loans previously charged off		13,384				32,515				7,540

	Net charge-offs		(4,394		)		(3,474		)		(54,436		)
	(Recovery of) provision for loan losses		(2,769		)		(34,595		)		50,637

	Amount attributable to FDIC loss share agreements		2,890				30,188				(40,556		)

	Total provision for (recovery of) loan losses charged to operations		121				(4,407		)		10,081

	(Recovery of) provision for loan losses recorded through the FDIC loss share receivable		(2,890		)		(30,188		)		40,556

	Balance, end of period		$	10,246			$	17,409			$	55,478


	Segment and Class Risk Descriptions

	Each of our portfolio segments and the classes within those segments are subject to risks that could have an adverse impact on the credit quality of our loan portfolio. Management has identified the most significant risks as described below which are generally similar among our segments and classes. While the list is not exhaustive, it provides a description of the risks that management has determined are the most significant. At December 31, 2014, approximately 6.1% of our outstanding loan portfolio is covered under FDIC loss share agreements. Although the balance of loans covered by loss share agreements with the FDIC continues to decline, the risks associated with covered loans are generally consistent with the risks identified for commercial and noncommercial loans and the classes of loans within those segments. An additional risk with respect to our covered loans is the ability to receive timely and full reimbursement from the FDIC for losses and related expenses that we believe are covered by the loss share agreements.

	The risks associated with segments and classes are described below.

	Real Estate Loans

	Loans secured by real estate are the principal component of our loan portfolio. Real estate loans are subject to the same general risks as other loans and are particularly sensitive to fluctuations in interest rates and the value of real estate. Fluctuations in these factors, as well as others arising after a loan has been made, could negatively affect a borrower's cash flow, creditworthiness and ability to repay the loan. When we make new real estate loans, we typically obtain a security interest in the real estate, as well as other available credit enhancements, to increase the likelihood of the ultimate repayment of the loan. To control concentration risk, we monitor collateral type concentrations within this portfolio.

	In addition to these common risks for the majority of our real estate loans, additional risks are inherent in certain of our classes of real estate loans.

	Commercial Real Estate

	Commercial real estate loans consist of commercial construction and land development loans and other commercial real estate loans. Commercial construction and land development loans are highly dependent upon the supply and demand for commercial real estate in the markets we serve as well as the demand for newly constructed residential homes and lots that our customers are developing. Construction and development loans generally carry a higher degree of risk than long-term financing of existing properties because repayment depends upon the ultimate completion of the project and usually on the subsequent lease-up and/or sale of the property. Additionally, deterioration in demand could result in significant decreases in the underlying collateral values and make repayment of the outstanding loans more difficult for our customers.

	Other commercial real estate loans consist primarily of loans secured by other nonfarm nonresidential properties such as retail, office and hotel/motel and multifamily housing. These loans typically have terms of five years or less, although payments may be structured on a longer amortization basis. We evaluate each borrower on an individual basis and attempt to determine the business risks and credit profile of each borrower. The primary risk associated with loans secured with income-producing property is the inability of that property to produce adequate cash flow to service the debt. High unemployment, generally weak economic conditions and/or an oversupply in the market may result in our customer having difficulty achieving adequate occupancy rates.

	Residential Real Estate

	Residential real estate loans are typically to individuals and are secured by owner-occupied and investor-owned 1-4 family residential property. We generally originate and hold short-term first mortgages, adjustable rate mortgages, traditional second mortgages and home equity lines of credit. We originate and sell longer-term mortgages in the secondary market. Significant and rapid declines in real estate values can result in residential mortgage loan borrowers having debt levels in excess of the current market value of the collateral.

Owner-Occupied Real Estate

Owner-occupied loans consist of loans secured by nonfarm nonresidential properties, such as office and industrial properties, churches, convenience stores and restaurants occupied by an affiliated tenant. Loan repayment is primarily dependent on the ability of the operating company to achieve business results consistent with those projected at loan origination resulting in cash flow sufficient to service the debt. Adverse changes in the business's results, specifically declines in cash flows, could jeopardize the ability for the loan to be serviced in accordance with the contractual terms.

Commercial, Financial & Agricultural

Commercial, financial and industrial loans include loans to individuals and businesses for commercial purposes in various lines of business, including the manufacturing, professional service, and crop production industries. This segment also includes loans to states and political subdivisions. Repayment is primarily dependent on the ability of the borrower to achieve business results consistent with those projected at loan origination resulting in cash flow sufficient to service the debt. To the extent that a borrower's business results are significantly unfavorable versus the original projections, the ability for the loan to be serviced on a basis consistent with the contractual terms may be at risk. While these loans may be partially secured by real estate, they are generally considered to have greater collateral risk than first or second mortgages on real estate because these loans may be unsecured or, if they are secured, the value of the non-real estate collateral may be difficult to assess and less marketable than real estate, and the control of the collateral is more at risk.

Leases

Lease financing includes obtaining the payment stream of commercial, business purpose and municipal leases, as well as providing financing for lease originators for various commercial, business purpose and municipal leases. In each scenario, the stream of payments and a first security interest in the collateral is assigned to us. Our funding is based on a present value of the lease payments at a discounted interest rate, which is determined based on the credit quality of the lessee, the term of the lease compared to expected useful life, and the type of collateral. Types of collateral include, but are not limited to, medical equipment, rolling stock, vehicle tracking equipment, and hardware/software. Servicing of the leases is primarily retained by the loan originator, as well as ownership of all residuals, if applicable. Lease financing is underwritten by our commercial lenders using similar underwriting standards as would be applied to a secured commercial loan requesting high loan-to-value financing. Risks that are involved with lease financing receivables are credit underwriting and borrower industry concentrations.

Consumer

The consumer loan portfolio includes loans to individuals for personal, family and household purposes, including secured and unsecured installment loans and revolving lines of credit. Consumer loans not secured by real estate are generally considered to have greater risk than first or second mortgages on real estate because they may be unsecured, or, if they are secured, the value of the collateral may be difficult to assess and more likely to decrease in value, and is more difficult to control, than real estate.

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
December 31, 2014
Beginning balance		$	11,163			$	1,015			$	2,535			$	1,799			$	—			$	144		$	16,656

Charge-offs		(1,267		)		(1		)		—				(256		)		—				(28		)	(1,552		)

Recoveries		292				26				5				186				—				4			513

Provision		2,946				150				(612		)		41				262				(12		)	2,775

Ending balance		$	13,134			$	1,190			$	1,928			$	1,770			$	262			$	108		$	18,392


December 31, 2013
Beginning balance		$	9,495			$	1,050			$	2,486			$	1,497			$	—			$	132		$	14,660

Charge-offs		(190		)		(38		)		(49		)		(114		)		—				(26		)	(417		)

Recoveries		439				20				5				24				—				5			493

Provision		1,419				(17		)		93				392				—				33			1,920

Ending balance		$	11,163			$	1,015			$	2,535			$	1,799			$	—			$	144		$	16,656


December 31, 2012
Beginning balance		$	6,423			$	561			$	2,304			$	765			$	—			$	154		$	10,207

Charge-offs		(510		)		(75		)		—				(75		)		—				(9		)	(669		)

Recoveries		74				2				—				6				—				5			87

Provision		3,508				562				182				801				—				(18		)	5,035

Ending balance		$	9,495			$	1,050			$	2,486			$	1,497			$	—			$	132		$	14,660


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
31-Dec-14
Commercial real estate		$	330			$	12,804			$	13,134			$	4,089			$	916,376			$	920,465

Residential real estate		58				1,132				1,190				1,263				90,185				91,448

Owner-occupied real estate		22				1,906				1,928				44				188,889				188,933

Commercial, financial & agricultural		66				1,704				1,770				131				90,799				90,930

Leases		—				262				262				—				19,959				19,959

Consumer		10				98				108				19				8,639				8,658

Total organic loans		$	486			$	17,906			$	18,392			$	5,546			$	1,314,847			$	1,320,393


31-Dec-13
Commercial real estate		$	98			$	11,065			$	11,163			$	807			$	800,710			$	801,517

Residential real estate		38				977				1,015				1,198				65,637				66,835

Owner-occupied real estate		42				2,493				2,535				84				174,774				174,858

Commercial, financial & agricultural		117				1,682				1,799				234				70,772				71,006

Consumer		8				136				144				15				9,244				9,259

Total organic loans		$	303			$	16,353			$	16,656			$	2,338			$	1,121,137			$	1,123,475


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
December 31, 2014
Beginning balance		$	11,226			$	2,481			$	1,950			$	1,680			$	72			$	17,409

Charge-offs		(12,302		)		(1,228		)		(2,775		)		(1,409		)		(64		)		(17,778		)
Recoveries		8,682				1,491				1,429				1,714				68				13,384

Recovery of loan losses before amount attributable to FDIC loss share agreements		(2,145		)		(446		)		1,312				(1,418		)		(72		)		(2,769		)

Amount attributable to FDIC loss share agreements		2,239				466				(1,370		)		1,480				75				2,890

Total provision for loan losses charged to operations		94				20				(58		)		62				3				121

Provision for loan losses recorded through the FDIC loss share receivable		(2,239		)		(466		)		1,370				(1,480		)		(75		)		(2,890		)

Ending balance		$	5,461			$	2,298			$	1,916			$	567			$	4			$	10,246


December 31, 2013
Beginning balance		$	27,152			$	21,545			$	4,021			$	2,607			$	153			$	55,478

Charge-offs		(25,554		)		(2,697		)		(4,619		)		(2,856		)		(263		)		(35,989		)
Recoveries		18,661				5,500				3,637				3,494				1,223				32,515

Recovery of loan losses before benefit attributable to FDIC loss share agreements		(9,033		)		(21,867		)		(1,089		)		(1,565		)		(1,041		)		(34,595		)
Amount attributable to FDIC loss share agreements		7,882				19,083				950				1,365				908				30,188

Total recovery of loan losses charged to operations		(1,151		)		(2,784		)		(139		)		(200		)		(133		)		(4,407		)
Provision for loan losses recorded through the FDIC loss share receivable		(7,882		)		(19,083		)		(950		)		(1,365		)		(908		)		(30,188		)
Ending balance		$	11,226			$	2,481			$	1,950			$	1,680			$	72			$	17,409


December 31, 2012
Beginning balance		$	37,332			$	14,372			$	4,597			$	2,976			$	—			$	59,277

Charge-offs		(50,259		)		(4,544		)		(5,038		)		(2,123		)		(12		)		(61,976		)
Recoveries		6,999				169				357				15				—				7,540

Provision for loan losses before amount attributable to FDIC loss share agreements		33,080				11,548				4,105				1,739				165				50,637

Amount attributable to FDIC loss share agreements		(26,494		)		(9,249		)		(3,288		)		(1,393		)		(132		)		(40,556		)
Total provision for loan losses charged to operations		6,586				2,299				817				346				33				10,081

Provision for loan losses recorded through the FDIC loss share receivable		26,494				9,249				3,288				1,393				132				40,556

Ending balance		$	27,152			$	21,545			$	4,021			$	2,607			$	153			$	55,478





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
31-Dec-14
Commercial real estate		$	1,830			$	3,631			$	5,461			$	42,721			$	40,503			$	83,224

Residential real estate		1,094				1,204				2,298				3,718				75,075				78,793

Owner-occupied real estate		1,462				454				1,916				19,736				22,432				42,168

Commercial, financial & agricultural		—				567				567				353				1,600				1,953

Consumer		—				4				4				31				170				201

Total purchased credit impaired loans		$	4,386			$	5,860			$	10,246			$	66,559			$	139,780			$	206,339


31-Dec-13
Commercial real estate		$	6,018			$	5,208			$	11,226			$	49,713			$	53,243			$	102,956

Residential real estate		966				1,515				2,481				2,132				93,108				95,240

Owner-occupied real estate		1,077				873				1,950				15,449				38,987				54,436

Commercial, financial & agricultural		36				1,644				1,680				16				4,273				4,289

Consumer		72				—				72				265				308				573

Total purchased credit impaired loans		$	8,169			$	9,240			$	17,409			$	67,575			$	189,919			$	257,494


For each period indicated, a significant 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.
















Impaired loans, segregated by class of loans, are presented in the following table (dollars in thousands):


		December 31, 2014												December 31, 2013
Impaired Loans:		Unpaid Principal Balance				Recorded Investment				Related Allowance				Unpaid Principal Balance				Recorded Investment				Related Allowance
Organic and Purchased Non-Credit Impaired
With no related allowance recorded:
Construction, land & land development		$	4,616			$	3,426			$	—			$	501			$	269			$	—

Other commercial real estate		—				—				—				523				350				—

Total commercial real estate		4,616				3,426				—				1,024				619				—

Residential real estate		875				875				—				869				869				—

Owner-occupied real estate		—				—				—				—				—				—

Commercial, financial & agricultural		—				—				—				—				—				—

Consumer		—				—				—				—				—				—

Subtotal		5,491				4,301				—				1,893				1,488				—


With related allowance recorded:
Construction, land & land development		3				3				1				333				52				26

Other commercial real estate		834				659				329				179				136				72

Total commercial real estate		837				662				330				512				188				98

Residential real estate		432				399				58				316				256				38

Owner-occupied real estate		44				44				22				89				84				42

Commercial, financial & agricultural		227				227				66				234				234				117

Consumer		21				20				10				17				15				8

Subtotal		1,561				1,352				486				1,168				777				303

Total impaired loans		$	7,052			$	5,653			$	486			$	3,061			$	2,265			$	303


The following table presents information related to the average recorded investment and interest income recognized on impaired loans, for the periods indicated (dollars in thousands):


		31-Dec-14								31-Dec-13								31-Dec-12
Impaired Loans:		Average Recorded Investment				Interest Income Recognized (2)				Average Recorded Investment				Interest Income Recognized (2)				Average Recorded Investment (1)				Interest Income Recognized (2)
Organic and Purchased Non-Credit Impaired		(1)								(1)
Construction, land & land development		$	669			$	86			$	324			$	—			$	350			$	—

Other commercial real estate		515				27				1,309				5				3,202				55

Total commercial real estate		1,184				113				1,633				5				3,552				55

Residential real estate		1,213				8				1,295				3				1,301				23

Owner-occupied real estate		103				—				171				—				112				1

Commercial, financial & agricultural		216				3				341				—				197				—

Consumer		20				3				38				—				43				1

Total impaired loans		$	2,736			$	127			$	3,478			$	8			$	5,205			$	80




(1) The average recorded investment for troubled debt restructurings was $1.3 million, $1.0 million and $2.4 million for the years ended December 31, 2014, 2013 and 2012, respectively.
(2) The total interest income recognized on troubled debt restructurings was $41,000, $5,000 and $70,000 for the years ended December 31, 2014, 2013, 2012, respectively.

The following table presents the recorded investment in nonaccrual loans by loan class for the periods indicated (dollars in thousands):


		31-Dec
Nonaccrual Loans (1)		2014				2013
Construction, land & land development		$	3,429			$	321

Other commercial real estate		659				486

Total commercial real estate		4,088				807

Residential real estate		1,274				1,125

Owner-occupied real estate		44				84

Commercial, financial & agricultural		227				234

Consumer		20				15

Total nonaccrual loans		$	5,653			$	2,265




(1) Includes both organic and purchased nonaccrual loans at December 31, 2014. Purchased non-credit impaired nonaccrual loans totaled $107,000 at December 31, 2014. There were no purchased non-credit impaired loans at December 31, 2013.

The following table presents an analysis of past due organic loans, by class of loans, for the periods indicated (dollars in thousands):


Organic Loans		30 - 89				90 Days or				Total				Current				Total Loans				Loans > 90
		Days				greater				Past Due												Days and
		Past Due				Past Due																Accruing
December 31, 2014
Construction, land & land development		$	—			$	—			$	—			$	310,987			$	310,987			$	—

Other commercial real estate		24				385				409				609,069				609,478				—

Total commercial real estate		24				385				409				920,056				920,465				—

Residential real estate		527				893				1,420				90,028				91,448				—

Owner-occupied real estate		287				44				331				188,602				188,933				—

Commercial, financial & agricultural		—				108				108				90,822				90,930				—

Leases		—				—				—				19,959				19,959				—

Consumer		25				12				37				8,621				8,658				—

Total organic loans		$	863			$	1,442			$	2,305			$	1,318,088			$	1,320,393			$	—


December 31, 2013
Construction, land & land development		$	57			$	275			$	332			$	250,711			$	251,043			$	—

Other commercial real estate		—				—				—				550,474				550,474				—

Total commercial real estate		57				275				332				801,185				801,517				—

Residential real estate		207				62				269				66,566				66,835				—

Owner-occupied real estate		44				83				127				174,731				174,858				—

Commercial, financial & agricultural		65				116				181				70,825				71,006				—

Consumer		85				6				91				9,168				9,259				—

Total organic loans		$	458			$	542			$	1,000			$	1,122,475			$	1,123,475			$	—









The following table presents an analysis of past due purchased non-credit impaired loans, by class of loans, for the period presented (dollars in thousands):


Purchased Non-Credit Impaired Loans (1)		30 - 89				90 Days or				Total				Current				Total Loans				Loans > 90
		Days				greater				Past Due												Days and
		Past Due				Past Due																Accruing
December 31, 2014
Construction, land & land development		$	—			$	—			$	—			$	2,166			$	2,166			$	—

Other commercial real estate		—				—				—				26,793				26,793				—

Total commercial real estate		—				—				—				28,959				28,959				—

Residential real estate		490				11				501				43,168				43,669				—

Owner-occupied real estate		—				—				—				22,743				22,743				—

Commercial, financial & agricultural		—				—				—				11,635				11,635				—

Consumer		—				—				—				791				791				—

Total purchased non-credit impaired loans		$	490			$	11			$	501			$	107,296			$	107,797			$	—




(1) There were no purchased non-credit impaired loans at December 31, 2013.

The following table presents an analysis of past due purchased credit impaired loans, by class of loans, for the periods presented (dollars in thousands):


Purchased Credit Impaired Loans		30 - 89				90 Days or				Total				Current				Total Loans
		Days				greater				Past Due
		Past Due				Past Due
December 31, 2014
Construction, land & land development		$	1,235			$	8,797			$	10,032			$	14,512			$	24,544

Other commercial real estate		1,443				4,957				6,400				52,280				58,680

Total commercial real estate		2,678				13,754				16,432				66,792				83,224

Residential real estate		3,525				6,577				10,102				68,691				78,793

Owner-occupied real estate		1,113				4,148				5,261				36,907				42,168

Commercial, financial & agricultural		—				340				340				1,613				1,953

Consumer		—				101				101				100				201

Total purchased credit impaired loans		$	7,316			$	24,920			$	32,236			$	174,103			$	206,339


December 31, 2013
Construction, land & land development		$	1,134			$	13,454			$	14,588			$	20,795			$	35,383

Other commercial real estate		3,346				8,541				11,887				55,686				67,573

Total commercial real estate		4,480				21,995				26,475				76,481				102,956

Residential real estate		5,548				7,541				13,089				82,151				95,240

Owner-occupied real estate		1,372				9,634				11,006				43,430				54,436

Commercial, financial & agricultural		139				587				726				3,563				4,289

Consumer		1				283				284				289				573

Total purchased credit impaired loans		$	11,540			$	40,040			$	51,580			$	205,914			$	257,494


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 periods presented (dollars in thousands):


Organic Loans		Pass				Watch				OAEM				Substandard				Doubtful				Total
December 31, 2014
Construction, land & land development		$	272,847			$	34,702			$	—			$	3,438			$	—			$	310,987

Other commercial real estate		572,098				35,434				905				1,041				—				609,478

Total commercial real estate		844,945				70,136				905				4,479				—				920,465

Residential real estate		69,828				19,656				287				1,677				—				91,448

Owner-occupied real estate		162,929				17,999				1,157				6,848				—				188,933

Commercial, financial & agricultural		87,819				1,754				798				559				—				90,930

Leases		19,959				—				—				—				—				19,959

Consumer		8,302				27				9				320				—				8,658

Total organic loans		$	1,193,782			$	109,572			$	3,156			$	13,883			$	—			$	1,320,393


December 31, 2013
Construction, land & land development		$	174,700			$	71,225			$	4,780			$	338			$	—			$	251,043

Other commercial real estate		528,649				21,148				191				486				—				550,474

Total commercial real estate		703,349				92,373				4,971				824				—				801,517

Residential real estate		55,447				9,712				437				1,239				—				66,835

Owner-occupied real estate		147,510				24,017				2,540				791				—				174,858

Commercial, financial & agricultural		68,866				1,532				365				243				—				71,006

Consumer		9,121				76				—				55				7				9,259

Total organic loans		$	984,293			$	127,710			$	8,313			$	3,152			$	7			$	1,123,475


The following table presents the risk grades of the purchased non-credit impaired loan portfolio, by class of loans, at the period presented (dollars in thousands):


Purchased Non-Credit Impaired Loans (1)		Pass				Watch				OAEM				Substandard				Doubtful				Total
December 31, 2014
Construction, land & land development		$	2,166			$	—			$	—			$	—			$	—			$	2,166

Other commercial real estate		24,257				2,536				—				—				—				26,793

Total commercial real estate		26,423				2,536				—				—				—				28,959

Residential real estate		41,868				1,694				—				107				—				43,669

Owner-occupied real estate		21,862				881				—				—				—				22,743

Commercial, financial & agricultural		9,800				1,475				264				96				—				11,635

Consumer		773				18				—				—				—				791

Total purchased non-credit impaired loans		$	100,726			$	6,604			$	264			$	203			$	—			$	107,797




(1) There were no purchased non-credit impaired loans at December 31, 2013.

Classifications on purchased credit impaired loans are based upon the borrower's ability to pay the current unpaid principal balance without regard to loss share coverage or 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, at the periods presented (dollars in thousands):


Purchased Credit Impaired Loans		Pass				Watch				OAEM				Substandard				Doubtful				Total
December 31, 2014
Construction, land & land development		$	5,833			$	2,228			$	195			$	14,485			$	1,803			$	24,544

Other commercial real estate		5,893				24,139				8,397				18,383				1,868				58,680

Total commercial real estate		11,726				26,367				8,592				32,868				3,671				83,224

Residential real estate		35,829				11,092				8,649				17,698				5,525				78,793

Owner-occupied real estate		15,234				12,786				3,694				9,405				1,049				42,168

Commercial, financial & agricultural		1,048				142				123				308				332				1,953

Consumer		32				24				—				25				120				201

Total purchased credit impaired loans		$	63,869			$	50,411			$	21,058			$	60,304			$	10,697			$	206,339


December 31, 2013
Construction, land & land development		$	2,833			$	7,319			$	969			$	23,717			$	545			$	35,383

Other commercial real estate		7,563				14,189				15,027				29,315				1,479				67,573

Total commercial real estate		10,396				21,508				15,996				53,032				2,024				102,956

Residential real estate		42,507				16,221				2,473				33,452				587				95,240

Owner-occupied real estate		15,491				9,780				6,702				22,463				—				54,436

Commercial, financial & agricultural		845				652				39				2,622				131				4,289

Consumer		222				47				1				300				3				573

Total purchased credit impaired loans		$	69,461			$	48,208			$	25,211			$	111,869			$	2,745			$	257,494


Troubled Debt Restructurings (TDRs)

Total organic troubled debt restructurings were $4.3 million and $869,000 at December 31, 2014 and 2013, respectively, with no related allowance for loan and lease losses for the same periods, respectively. At December 31, 2014 and 2013, there were no commitments to extend credit to any of the borrowers with an existing troubled debt restructuring. At December 31, 2014, there were no purchased non-credit impaired TDRs. 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 organic troubled debt restructured loans that were modified during the periods presented (dollars in thousands):


		31-Dec-14											31-Dec-12
Organic TDR Additions (1) (2)		Number of Contracts			Pre-Modification				Post-Modification				Number of Contracts			Pre-Modification				Post-Modification
					Recorded Investment				Recorded Investment							Recorded Investment				Recorded Investment
Construction, land & land development		1			$	3,427			$	3,427			—			$	—			$	—

Other commercial real estate		—			—				—				1			1,182				1,182

Total commercial real estate		1			3,427				3,427				1			1,182				1,182

Residential real estate		—			—				—				1			900				900

Total modifications		1			$	3,427			$	3,427			2			$	2,082			$	2,082




(1) There were no organic troubled debt restructured loans modified during the year ended December 31, 2013.
(2) The pre-modification and post-modification recorded investments represent amounts at the date of loan modifications. Since the modifications on these loans have been only interest rate concessions and payment term extensions, not principal reductions, the pre-modification and post-modification recorded investment amounts are the same.

During the years ended December 31, 2014, 2013, and 2012, there were no organic TDRs that subsequently defaulted within twelve months of their modification dates.

Other_Real_Estate_Owned

Other Real Estate Owned	12 Months Ended
	Dec. 31, 2014
Real Estate [Abstract]
Other Real Estate Owned	Note 7: Other Real Estate Owned

	The following is a summary of transactions in other real estate owned for the periods presented (dollars in thousands):


		31-Dec
	Other real estate owned	2014			2013			2012
	Balance, beginning of period	$	965		$	1,115		$	1,210

	Other real estate acquired through foreclosure of loans receivable	459			1,075			738

	Former bank premises real estate owned	—			796			—

	Other real estate sold	(924		)	(1,497		)	(807		)
	Write down of other real estate	(426		)	(524		)	(26		)
	Balance, end of period	$	74		$	965		$	1,115


	Acquired other real estate owned
	Balance, beginning of period	$	46,222		$	45,062		$	84,496

	Other real estate acquired through mergers and acquisitions	1,620			—			—

	Other real estate acquired through foreclosure of loans receivable	29,859			77,243			40,780

	Other real estate sold	(56,460		)	(55,023		)	(50,292		)
	Write down of other real estate	(12,747		)	(21,060		)	(29,922		)
	Balance, end of period (1)	$	8,494		$	46,222		$	45,062


	Total other real estate owned	$	8,568		$	47,187		$	46,177




	(1) Acquired OREO covered by loss share agreements with the FDIC was approximately $3.3 million, $46.2 million, and $45.1 million at December 31, 2014, 2013, and 2012, respectively.

Premises_and_Equipment

Premises and Equipment	12 Months Ended
	Dec. 31, 2014
Property, Plant and Equipment, and Leases [Abstract]
Premises and Equipment	Note 8: Premises & Equipment

	Premises and equipment are summarized as follows (dollars in thousands):


		31-Dec
		2014			2013
	Land	$	9,057		$	9,057

	Buildings and improvements	23,010			20,122

	Furniture, fixtures, and equipment	13,314			11,986

	Construction in progress	856			996

	Premises and equipment, gross	46,237			42,161

	Accumulated depreciation	(10,951		)	(8,843		)
	Premises and equipment, net	$	35,286		$	33,318


	Depreciation expense for premises and equipment was $3.0 million, $2.9 million, and $3.0 million for the years ended December 31, 2014, 2013, and 2012, respectively.

	Leases

	The Company has various operating leases on banking locations with lease terms that range up to 8 years. These noncancelable operating leases are subject to renewal options and some leases provide for periodic rate adjustments according to the terms of the agreements.

	Future minimum lease commitments under all noncancelable operating leases with terms of one year or more, excluding any renewal options, are as follows (dollars in thousands):


	Years Ended December 31		Future Lease Commitments
	2015		$	3,474

	2016		3,239

	2017		2,932

	2018		2,835

	2019		2,398

	Thereafter		9,237

	Total (1)		$	24,115




	(1) The total future minimum lease commitments have not been reduced by minimum sublease rentals of $4.4 million due in the future from noncancelable subleases.

	Rent expense was $2.5 million, $2.8 million, and $2.6 million, for the years ended December 31, 2014, 2013, and 2012, respectively.

Goodwill_and_Other_Intangible_

Goodwill and Other Intangible Assets	12 Months Ended
	Dec. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	Note 9: Goodwill & Other Intangible Assets

	Changes to the carrying amounts of goodwill and identifiable intangible assets are presented in the table below (dollars in thousands):


		31-Dec
		2014			2013
	Goodwill
	Balance, beginning of year	$	10,381		$	10,381

	Bank of Atlanta acquisition	225			—

	Balance, end of year	10,606			10,381

	Core deposit and other intangibles
	Balance, beginning of year	6,297			6,297

	Bank of Atlanta acquisition	1,460			—

	Accumulated amortization	(5,005		)	(4,311		)
	Balance, end of year	2,752			1,986

	Total goodwill and other intangibles	$	13,358		$	12,367


	Amortization expense of $694,000, $1.2 million, and $1.0 million was recorded on total intangibles for the years ended December 31, 2014, 2013, and 2012, respectively.

	The Company evaluates goodwill for impairment on at least an annual basis and more frequently if an event occurs or circumstances indicate carrying value exceeds fair value. At December 31, 2014, the Company performed a qualitative assessment to determine if it was more likely than not that the fair value exceeded carrying value. The qualitative assessment indicated that it was more likely than not that the fair value exceeded its carrying value, resulting in no impairment.

	Amortization expense for core deposit and other intangibles for the next five years is expected to be as follows (dollars in thousands):


	Years Ended December 31	Amortization Expense
	2015	$	829

	2016	751

	2017	661

	2018	292

	2019	219

	Total amortization expense	$	2,752

SBA_Servicing_Rights

SBA Servicing Rights	12 Months Ended
	Dec. 31, 2014
Transfers and Servicing [Abstract]
SBA Servicing Rights	Note 10: 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 year ended December 31, 2014, the Company sold SBA loans with unpaid principal balances totaling $2.6 million and recognized $181,000 in gains on the loan sales. 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 $296,000 for the year ended December 31, 2014. The Company did not have SBA servicing fee income in 2013 or 2012. At December 31, 2014, the Company serviced $71.1 million of SBA loans for others.

	The table below summarizes the activity in the SBA servicing rights asset for the period presented (dollars in thousands):


	SBA Servicing Rights	31-Dec-14
	Balance, beginning of period	$	—

	Bank of Atlanta acquisition	1,509

	Additions	45

	Fair value adjustments	(38		)
	Balance, end of period	$	1,516


	A summary of the key characteristics, inputs and economic assumptions used to estimate the fair value of the Company's SBA servicing rights asset are as follows (dollars in thousands):


	SBA Servicing Rights	31-Dec-14
	Fair value	$	1,516

	Weighted average discount rate	11.3			%

	Prepayment speed	6.7			%

	Weighted average remaining life (years)	7.8


	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.

FDIC_Receivable_for_Loss_Share

FDIC Receivable for Loss Share Agreements	12 Months Ended
	Dec. 31, 2014
FDIC Receivable for Loss Sharing Agreements [Abstract]
FDIC Receivable for Loss Share Agreements	Note 11: FDIC Receivable for Loss Share Agreements

	The FDIC receivable for loss share agreements is measured separately from the related covered assets. Any applicable reimbursements relating to recoveries owed to the FDIC under the terms of the loss share agreements are netted against the FDIC receivable. Prospective losses incurred on covered loans and other real estate owned are eligible for partial reimbursement by the FDIC under loss share agreements. Increases in the valuation allowances or impairment charges related to covered assets result in an increased adjustment to the FDIC receivable for the estimated amount to be reimbursed, discounted to present value. Decreases in the valuation allowances or impairment charges related to covered assets result in a decreased adjustment to the FDIC receivable.

	The following table documents changes in the carrying value of the FDIC receivable for loss share agreements relating to covered purchased credit impaired loans and covered acquired other real estate owned for the periods indicated (dollars in thousands):


		31-Dec
	FDIC receivable for loss share agreements	2014			2013			2012
	Balance, beginning of period	$	107,843		$	356,866		$	529,440

	Provision for loan losses attributable to FDIC for loss share agreements	(2,890		)	(30,188		)	40,556

	Wires received	(45,251		)	(125,960		)	(222,180		)
	Net charge-offs, write-downs and other losses	(28,169		)	(19,564		)	21,377

	Amortization	(15,785		)	(87,884		)	(32,569		)
	External expenses qualifying under loss share agreements	6,572			14,573			20,242

	Balance, end of period	$	22,320		$	107,843		$	356,866


	At December 31, 2014, we recorded a clawback liability of $5.7 million to the FDIC related to the First Security National Bank, NorthWest Bank & Trust, United Americas Bank, Community Capital Bank and Piedmont Community Bank acquisitions.

Deposits

Deposits	12 Months Ended
	Dec. 31, 2014
Banking and Thrift [Abstract]
Deposits	Note 12: Deposits

	Deposits are summarized as follows (dollars in thousands):


		31-Dec
		2014		2013
	Noninterest-bearing demand deposits	$	577,295	$	468,138

	Interest-bearing transaction accounts	495,966		367,983

	Savings and money market deposits	954,626		892,136

	Time deposits less than $250,000	247,757		267,308

	Time deposits $250,000 or greater	18,946		26,130

	Brokered and wholesale time deposits	97,092		106,630

	Total deposits	$	2,391,682	$	2,128,325


	Overdrawn deposit accounts reclassified as loans were $259,000 and $308,000 at December 31, 2014 and 2013, respectively.

	The scheduled maturities of time, brokered, and wholesale deposits were as follows (dollars in thousands):


		31-Dec-14
	2015	$	239,420

	2016	95,593

	2017	20,302

	2018	4,906

	2019	3,448

	Thereafter	126

	Total time, brokered, and wholesale deposits	$	363,795


	The Company had brokered deposits of $50.6 million and $70.7 million at December 31, 2014 and 2013, respectively. The scheduled maturities of brokered deposits and their weighted average costs were as follows (dollars in thousands):


		December 31, 2014
		Balance		Average Cost
	2015	$	17,998	0.81	%

	2016	26,541		1.05	%

	2017	4,050		1.28	%

	2018	2,000		1.58	%

	Total brokered deposits	$	50,589	1	%

Securities_Sold_Under_Repurcha

Securities Sold Under Repurchase Agreements	12 Months Ended
Securities Sold Under Repurchase Agreements	Dec. 31, 2014
Securities Sold Under Repurchase Agreements [Abstract]
Securities Sold Under Repurchase Agreements	Note 13: Securities Sold Under Repurchase Agreements

	Retail repurchase agreements, defined as securities sold under repurchase agreements, are secured short-term borrowings from customers, which may be drawn on demand. The agreements bear interest rates determined by the Company. The Company did not have retail repurchase agreements at December 31, 2014. At December 31, 2013, retail repurchase agreements totaled $1.2 million with a weighted average interest rate of .10% and the Company pledged securities as collateral with an approximate market value of $2.5 million.

Notes_Payable

Notes Payable	12 Months Ended
Notes Payable	Dec. 31, 2014
Notes Payable [Abstract]
Notes Payable	Note 14: Notes Payable

	The Company has several participation agreements with various provisions regarding collateral position, pricing and other matters where the junior participation interests were sold. The terms of the agreements do not convey proportionate ownership rights with equal priority to each participating interest and entitle the Company to receive principal and interest payments before other participating interest holders. Given the participations sold do not qualify as participating interests, they do not qualify for sale treatment in accordance with generally accepted accounting principles. As a result, the Company recorded the transactions as secured borrowings. The balance of the secured borrowings was $2.8 million and $5.7 million at December 31, 2014 and 2013, respectively. The loans are recorded at their gross balances outstanding and are included in organic loans on the consolidated statements of financial condition.

Derivative_Instruments_and_Hed

Derivative Instruments and Hedging Activities	12 Months Ended
	Dec. 31, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments and Hedging Activities	Note 15: Derivatives Instruments & Hedging Activities

	Risk Management Objective of Using Derivatives

	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 on 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.

	The table below presents the fair values of the Company's derivative financial instruments designated as hedging instruments as well as their classifications on the consolidated statements of financial condition at the dates presented (dollars in thousands):


			Derivatives Designated as Hedging Instruments
			Fair Value				Fair Value
	Interest Rate Products		December 31, 2014				December 31, 2013
	Asset Derivatives
	Other Assets		$	3,879			$	8,087


	Liability Derivatives
	Other Liabilities		$	1,666			$	764


	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 December 31, 2014, the Company had 95 interest rate swaps with an aggregate notional amount of $177.2 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):


					31-Dec
	Interest Rate Products		Location		2014				2013			2012
	Amount of (loss) gain recognized in income on derivatives		Noninterest income		$	(3,031	)		$	4,568		$	(1,546	)

	Amount of gain (loss) recognized in income on hedged items		Noninterest income		2,422				(3,728		)	1,381

	Total net (loss) gain recognized in income on fair value hedge ineffectiveness				$	(609	)		$	840		$	(165	)


	The Company recognized net (losses) gains of $(609,000), $840,000, and $(165,000) during the years ended December 31, 2014, 2013, and 2012, respectively, related to hedge ineffectiveness of the fair value hedging relationships. The Company also recognized a net reduction in interest income of $2.1 million, $1.5 million, and $698,000 for the years ended December 31, 2014, 2013, and 2012, respectively, related to the Company's fair value hedges, which include net settlements on derivatives and any amortization adjustment of the basis in the hedged items. Terminations of derivatives and related hedged items for interest rate swap agreements prior to their original maturity date resulted in the recognition of net gains (losses) of $49,000, $125,000, and $(8,000) in interest income for the years ended December 31, 2014, 2013, and 2012, respectively, 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 the 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 years ended December 31, 2014 and 2013.

	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, $546,000 is expected to be reclassified as an increase 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):


					31-Dec
	Interest Rate Products		Location		2014				2013			2012
	Amount of (loss) gain recognized in income on derivatives (effective portion)		OCI		$	(2,036	)		$	1,264		$	—

	Amount of loss reclassified from AOCI into income (effective portion)		Interest expense		259				40			—

	Total (loss) gain recognized in consolidated statements of comprehensive income				$	(1,777	)		$	1,304		$	—


	Derivative Not Designated as Hedging Instrument

During 2014, the Company had an interest rate swap not designated as a fair value hedge associated with
the Company's fixed rate loan program. The income statement effect from the derivative not designated as a hedging instrument
was $47,000 for the year ended December 31, 2014. At December 31, 2014 all derivatives were designated as hedging instruments.

Credit-risk-related Contingent Features

The Company manages credit exposure on derivatives 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. At December 31, 2014, the Company has received $2.7 million in cash collateral under these agreements.

The Company’s agreements with its derivative 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 December 31, 2014, the termination value of derivatives in a net liability position under these agreements was $456,000. Although the Company did not breach any provisions at December 31, 2014, had a breach occurred, the Company could have been required to settle obligations under the agreements at their termination value.

Balance Sheet Offsetting

Certain financial instruments, including derivatives (interest rate caps and swaps), may be eligible for offset in the consolidated balance sheet and/or subject to master netting arrangements or similar agreements. The Company is party to master netting arrangements with its financial institution counterparties; 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 on the consolidated statements of financial condition at the periods 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
December 31, 2014
Offsetting Derivative Assets
Derivatives		$	3,879			$	—			$	3,879		$	(1,666	)	$	(2,654	)	$	(441	)

Offsetting Derivative Liabilities
Derivatives		$	1,666			$	—			$	1,666		$	(1,666	)	$	—		$	—


December 31, 2013
Offsetting Derivative Assets
Derivatives		$	8,087			$	—			$	8,087		$	(764	)	$	(6,560	)	$	763

Offsetting Derivative Liabilities
Derivatives		$	764			$	—			$	764		$	(764	)	$	—		$	—

Stock_Warrants

Stock Warrants	12 Months Ended
	Dec. 31, 2014
Stockholders' Equity Note [Abstract]
Stock Warrants	Note 16: Stock Warrants

	The Company has outstanding warrants purchased by executive officers, directors and certain members of senior management. Warrant holders have the right to purchase one share of the Company's common stock at strike prices ranging from $5.00 to $12.00 per share through the ten-year contractual period. The warrants were fully exercisable as of the purchase date; however, they were subject to repurchase agreements should the holder leave his or her employment or role as a director. The repurchase was at the Company's option ranging from a price of $2.00 to $2.32 per warrant depending on the specific warrant agreement as well as $12.00 per share for exercised warrants. If the warrant holder exercised the warrant for shares within the repurchase period, the common stock issued was subject to repurchase until the agreement expired. The repurchase option expired three years from the date of each agreement. At December 31, 2014 there were no remaining unexercised or exercised warrants subject to repurchase. During 2014 and 2013, there were no new warrants granted and the repurchases during those periods were for unexercised warrants.

	The following table represents the activity related to stock warrants:


		31-Dec
		2014				2013
		Number of Warrants		Weighted Average Exercise Price		Number of Warrants		Weighted Average Exercise Price
	Outstanding warrants at beginning of year	2,623,824		$	9.84	2,640,283		$	9.84

	Issued	—		—		—		—

	Exercised	(42,633	)	6.24		(15,000	)	10

	Repurchased	—		—		(1,459	)	11.21

	Outstanding warrants at end of year	2,581,191		$	9.9	2,623,824		$	9.84

ShareBased_Compensation

Share-Based Compensation	12 Months Ended
Share-Based Compensation	Dec. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Share-Based Compensation	Note 17: Share-Based Compensation

	The Company maintains an incentive compensation plan that includes share-based compensation. The State Bank Financial Corporation 2011 Omnibus Equity Compensation Plan (the "Plan") was approved by the Company's shareholders in 2011 and authorizes up to 3,160,000 shares of stock for issuance in accordance with the Plan terms. The Plan provides for the granting of Incentive Stock Options, Non-Qualified Stock Options, Performance Awards, Restricted Stock, Restricted Stock Units, Stock Appreciation Rights, Bonus Stock and Stock Awards, or any combination of the foregoing, as the Independent Directors Committee serving as the Compensation Committee determines is best suited to the circumstances of the particular individual.

	Stock Option Awards

	Option awards are granted with an exercise price equal to or greater than the market price of the Company's common stock at the date of grant. The options include a vesting period, usually three years, and a ten-year contractual period. Certain option grants provide for accelerated vesting if there is a change in control of the Company or certain other conditions are met, as defined in the Plan document. At all times during the term of the Plan, the Company shall retain the number of shares required to satisfy option exercises as authorized and unissued shares in the Company's treasury. Currently, the Company has a sufficient number of shares allocated to satisfy expected share option exercises.

	During December 31, 2014 and 2012, there was no stock option activity. During 2013, the Company's Board of Directors approved the accelerated vesting of an aggregate of 28,918 unvested stock options upon the retirement of the award holders. The accelerated vesting triggered a modification to the award agreements, the original grants were forfeited and additional grants were awarded based on the new vesting terms. The additional grants awarded were done so at the same exercise price as the original grants. The fair value of each option award is estimated at the grant date using the Black-Scholes option-pricing model. The significant assumptions made and resulting grant-date fair values in utilizing the option-pricing model are noted in the table below:


		2013
	Expected volatility	28.6		%
	Expected volatility	28.6		%
	Expected dividend yield	—		%
	Expected dividend yield	—		%
	Risk-free interest rate	0.5		%
	Risk-free interest rate	0.5		%
	Expected term (in years)	2.5
	Expected term (in years)	2.5
	Weighted-average grant-date fair value	$	3.48
	Weighted-average grant-date fair value	$	3.48

	The 2013 expected volatility, used for the modification of the agreements, was based on the average historical volatility of the Company's stock price. The expected dividend yield is estimated using the current annual dividend level and most recent stock price of the Company's common stock at the date of grant. The risk-free interest rate is determined by using the U.S. Treasury rate for the expected life at the time of grant. The expected term represents the period of time that the stock options granted are expected to be outstanding.

	There was no compensation expense recognized related to stock options for the year ended December 31, 2014, as all options were vested at December 31, 2013. For the years ended December 31, 2013 and 2012, the Company recognized compensation expense related to stock options of $14,000 and $69,000, respectively, in the Company's consolidated statements of income. The total recognized tax benefit related to this share-based compensation was $5,000 and $24,000 for 2013 and 2012, respectively. The amount of compensation expense was determined based on the fair value of options at the time of grant, multiplied by the number of options granted that were expected to vest, which was then amortized over the vesting period.

	The following table represents a summary of the activity related to stock options:


			December 31, 2014
			Number of Options		Weighted Average Exercise Price ($)		Weighted Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value ($000)
	Outstanding options, end of year (1)		28,918		$	14.37	6.65	$	162
	Outstanding options, end of year (1)		28,918		$	14.37	6.65	$	162
	Fully vested and exercisable options, end of year		28,918		$	14.37	6.65	$	162
	Fully vested and exercisable options, end of year		28,918		$	14.37	6.65	$	162



	(1) There were no stock option grants, forfeitures or exercises during 2014.

	The aggregate intrinsic value of a stock option in the table above represents the total pre-tax intrinsic value (the amount by which the current market value of the underlying stock exceeds the exercise price of the option) that would have been received by the option holders had all option holders exercised their options on December 31, 2014. This amount changes based on changes in the market value of the Company’s stock.

	Restricted Stock Awards

	The Company has issued restricted stock to certain officers and independent directors under the Plan. The Plan allows for the issuance of restricted stock awards that may not be sold or otherwise transferred until certain restrictions have lapsed. The holders of the restricted stock receive dividends, if applicable, and have the right to vote the shares. The fair value of the restricted stock awarded under the Plan is recorded as unearned share-based compensation. The unearned compensation related to these awards is amortized to compensation expense over the vesting period, generally five years. The total share-based compensation expense for these awards is determined based on the market price of the Company's common stock at the date of grant applied to the total number of shares granted and is amortized over the vesting period. During 2014, the Company's Board of Directors approved the accelerated vesting of an aggregate of 44,138 shares of restricted stock to certain award holders based upon either their retirement or termination.

	Compensation expense recognized in the Company's consolidated statements of income for restricted stock was $2.0 million, $1.3 million and $710,000 for the years ended December 31, 2014, 2013 and 2012, respectively. The total recognized tax benefit related to this share-based compensation was $692,000, $444,000 and $251,000 for 2014, 2013 and 2012, respectively. Total unrecognized compensation cost related to unvested share-based compensation was $5.4 million at December 31, 2014 and is expected to be recognized over a weighted-average period of 3.4 years.

	The following table represents a summary of the unvested restricted stock award activity:


		December 31, 2014
		Shares		Weighted Average Grant Date Fair Value
	Balance, beginning of year	431,269		$	15.81
	Balance, beginning of year	431,269		$	15.81
	Granted	153,232		16.6
	Granted	153,232		16.6
	Forfeited	(16,250	)	14.86
	Forfeited	(16,250	)	14.86
	Earned and issued	(93,205	)	14.07
	Earned and issued	(93,205	)	14.07
	Balance, end of year	475,046		$	16.43
	Balance, end of year	475,046		$	16.43

Restricted stock awards of 153,232 shares, 181,814 shares, and 174,000 shares, respectively, were granted during 2014, 2013 and 2012 with a weighted-average grant date fair value of $16.60, $16.33 and $16.31, respectively.

Employee_Benefit_Plan

Employee Benefit Plan	12 Months Ended
Employee Benefit Plan	Dec. 31, 2014
Compensation and Retirement Disclosure [Abstract]
Employee Benefit Plan	Note 18: Employee Benefit Plan

	The Company offers a defined contribution 401(k) Profit Sharing Plan (the "401(k) Plan”) that covers substantially all employees meeting certain eligibility requirements. The 401(k) Plan allows employees to make pre-tax or Roth after-tax salary deferrals to the 401(k) Plan and the Company matches these employee contributions on a discretionary basis equal to a uniform percentage of the salary deferrals. During 2014, 2013 and 2012, the Company matched employee contributions dollar-for-dollar up to 5% of eligible compensation, subject to 401(k) Plan and regulatory limits. Participants receive matching contributions the first quarter after completing three months of service and matching contributions made after January 1, 2013 are fully vested, regardless of years of service. In 2012 and prior years, participants received matching contributions after completing one year of service and matching contributions made during those years began vesting after one year of service and are fully vested after five years of service. Compensation expense related to the 401(k) Plan totaled $2.0 million, $1.6 million, and $1.4 million in 2014, 2013 and 2012, respectively.

Regulatory_Matters

Regulatory Matters	12 Months Ended
	Dec. 31, 2014
Banking and Thrift [Abstract]
Regulatory Matters	Note 19: Regulatory Matters

	Regulatory Capital Requirements

	The Company and State Bank are subject to various regulatory capital requirements administered by the federal banking agencies. Failure to meet minimum capital requirements can initiate certain mandatory, and possibly additional discretionary, actions by regulators that, if undertaken, could have a direct material effect on the Company and State Bank. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, the Company and State Bank must meet specific capital guidelines that involve quantitative measures of their assets, liabilities and certain off-balance sheet items as calculated under regulatory accounting practices. Capital amounts and classifications are also subject to qualitative judgments by the regulators about components, risk weightings and other factors.

	Measures of regulatory capital are an important tool used by regulators to monitor the financial health of financial institutions. The primary quantitative measures used to gauge capital adequacy are the ratios of total and Tier 1 regulatory capital to risk-weighted assets (risk-based capital ratios) and the ratio of Tier 1 capital to average total assets (leverage ratio). Failure to meet various capital requirements can initiate regulatory action that could have a direct material effect on the Company and State Bank.

	At December 31, 2014 and 2013, the Company and State Bank were categorized as well capitalized under the regulatory framework for prompt corrective action. To be well-capitalized, the Company and State Bank must maintain total risk-based, Tier I risk-based and Tier I leverage ratios as set forth in the table below. There are no conditions or events that have occurred subsequent to year-end that would change the Company and State Bank's classification from well-capitalized. The Company's and State Bank's actual ratios at the periods indicated are as follows (dollars in thousands):


		Actual				For Capital Adequacy Purposes				To Be Well Capitalized Under Prompt Corrective Action Provisions
		Amount		Ratio		Amount		Ratio		Amount		Ratio
	December 31, 2014
	Total Capital to Risk-Weighted Assets
	Consolidated	$	470,869	24.37	%	$	154,543	8	%	$	193,178	10	%

	State Bank	$	383,957	19.88	%	$	154,511	8	%	$	193,139	10	%

	Tier I Capital to Risk-Weighted Assets
	Consolidated	$	446,666	23.12	%	$	77,271	4	%	$	115,907	6	%

	State Bank	$	359,759	18.63	%	$	77,256	4	%	$	115,883	6	%

	Tier I Capital to Average Assets
	Consolidated	$	446,666	15.9	%	$	112,334	4	%	$	—	N/A

	State Bank	$	359,759	12.84	%	$	112,112	4	%	$	140,139	5	%


		Actual				For Capital Adequacy Purposes				To Be Well Capitalized Under Prompt Corrective Action Provisions
		Amount		Ratio		Amount		Ratio		Amount		Ratio
	December 31, 2013
	Total Capital to Risk-Weighted Assets
	Consolidated	$	438,670	29.11	%	$	120,549	8	%	$	150,686	10	%

	State Bank	$	381,230	25.32	%	$	120,463	8	%	$	150,578	10	%

	Tier I Capital to Risk-Weighted Assets
	Consolidated	$	419,646	27.85	%	$	60,274	4	%	$	90,412	6	%

	State Bank	$	362,219	24.06	%	$	60,231	4	%	$	90,347	6	%

	Tier I Capital to Average Assets
	Consolidated	$	419,646	16.55	%	$	101,429	4	%	$	—	N/A

	State Bank	$	362,219	14.28	%	$	101,438	4	%	$	126,797	5	%


	The Company and State Bank entered into a Capital Maintenance Agreement with the FDIC. Under the terms of the Capital Maintenance Agreement, State Bank is required to maintain a leverage ratio of at least 10% and a total risk-based capital ratio of at least 12%. During the term of the agreement, if at any time State Bank's leverage ratio falls below 10%, or its risk-based capital ratio falls below 12%, the Company is required to immediately cause sufficient actions to be taken to restore State Bank's leverage and risk-based capital ratios to 10% and 12%, respectively. The Capital Maintenance Agreement expires on July 26, 2016. The Company and State Bank were in compliance with the Capital Maintenance Agreement at December 31, 2014.

	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 State Bank may distribute without prior regulatory approval. At December 31, 2014, State Bank had no capacity to pay dividends to the Company without prior regulatory approval.

	At December 31, 2014, the Company had $85.6 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. The Company declared a cash dividend of $.04 per common share to the Company's shareholders for the quarters ended June 30, 2014, September 30, 2014, and December 31, 2014 and declared a cash dividend of $.03 per share for the quarter ended March 31, 2014.

	Other Regulatory Matters

	The Company had required reserve balances at the Federal Reserve Bank of $99.3 million and $76.4 million at December 31, 2014 and 2013, respectively.

Commitments_and_Contingent_Lia

Commitments and Contingent Liabilities	12 Months Ended
	Dec. 31, 2014
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingent Liabilities	Note 20: 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 for on-balance-sheet instruments.

	A summary of the Company's commitments is as follows (dollars in thousands):


		31-Dec
		2014		2013
	Commitments to extend credit:
	Fixed	$	21,276	$	9,848

	Variable	405,956		290,079

	Financial standby letters of credit:
	Fixed	846		379

	Variable	4,350		1,274

	Total	$	432,428	$	301,580


	The fixed rate loan commitments have maturities ranging from one month to ten 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

	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	12 Months Ended
	Dec. 31, 2014
Fair Value Disclosures [Abstract]
Fair Value	Note 21: Fair Value

	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 years ended December 31, 2014 and 2013, there were no transfers between levels.

	Financial Assets and Financial Liabilities Measured on a Recurring Basis:

	The following methods and assumptions are used by the Company in estimating the fair value of its financial assets and financial liabilities on a recurring basis:

	Investment Securities Available-for-Sale

	At December 31, 2014, 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.

	Derivative Instruments and Hedging Activities

	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.

	SBA Servicing Rights

	The Company has the rights to service a portfolio of Small Business Administration (“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 "other noninterest expense" on the consolidated statements of income. Please reference Note 10 for the rollforward of the SBA servicing rights asset at fair value utilizing level 3 inputs.



	The following tables present the 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):


	December 31, 2014		Quoted Market				Significant				Significant				Total
			Prices in Active				Other				Unobservable
			Markets				Observable				Inputs
			(Level 1)				Inputs				(Level 3)
							(Level 2)
	Assets:
	U.S. Government securities		$	—			$	117,349			$	—			$	117,349

	States and political subdivisions		—				5,897				—				5,897

	Residential mortgage-backed securities — nonagency		—				115,031				—				115,031

	Residential mortgage-backed securities — agency		—				352,528				—				352,528

	Asset-backed securities		—				26,700				—				26,700

	Corporate securities		—				22,581				—				22,581

	Derivative financial instruments		—				3,879				—				3,879

	SBA servicing rights		—				—				1,516				1,516

Total recurring assets at fair value		$	—			$	643,965			$	1,516			$	645,481


Liabilities:
Derivative financial instruments		$	—			$	1,666			$	—			$	1,666

Total recurring liabilities at fair value		$	—			$	1,666			$	—			$	1,666




December 31, 2013		Quoted Market				Significant				Significant				Total
		Prices in Active				Other				Unobservable
		Markets				Observable				Inputs
		(Level 1)				Inputs				(Level 3)
						(Level 2)
Assets:
U.S. Government securities		$	761			$	80,350			$	—			$	81,111

States and political subdivisions		—				9,367				—				9,367

Residential mortgage-backed securities — nonagency		—				117,647				—				117,647

Residential mortgage-backed securities — agency		—				175,926				—				175,926

Asset-backed securities		—				2,940				—				2,940

Equity securities		57				—				—				57

Derivative financial instruments		—				8,087				—				8,087

Total recurring assets at fair value		$	818			$	394,317			$	—			$	395,135


Liabilities:
Derivative financial instruments		$	—			$	764			$	—			$	764

Total recurring liabilities at fair value		$	—			$	764			$	—			$	764


Financial Assets Measured on a Nonrecurring Basis

The following methods and assumptions are used by the Company 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 creditor will be unable to collect all amounts due according to the contractual terms of the loan agreement. The fair values of impaired organic 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.

Mortgage Loans Held for Sale

Mortgage loans held for sale are recorded at the lower of cost or fair value. The fair values of mortgage loans held for sale are measured on a nonrecurring basis. Estimated fair value is determined using Level 2 inputs based on observable data such as the existing forward commitment terms or the current market values of similar loans.

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				Significant				Significant				Total
	Prices in Active				Other				Unobservable
	Markets				Observable				Inputs
	(Level 1)				Inputs				(Level 3)
					(Level 2)
December 31, 2014
Impaired loans	$	—			$	—			$	5,167			$	5,167

Mortgage loans held for sale	—				3,174				—				3,174

Total nonrecurring assets at fair value	$	—			$	3,174			$	5,167			$	8,341


December 31, 2013
Impaired loans	$	—			$	—			$	1,962			$	1,962

Mortgage loans held for sale	—				897				—				897

Total nonrecurring assets at fair value	$	—			$	897			$	1,962			$	2,859


Impaired loans, excluding purchased credit impaired loans, that are measured for impairment using the fair value of collateral for collateral dependent loans had principal balances of $5.7 million and $2.3 million with valuation allowances of $486,000 and $303,000 at December 31, 2014 and 2013, respectively.
The following methods and assumptions are used by the Company in estimating the fair value of its nonfinancial assets on a nonrecurring basis:

Other Real Estate Owned

The fair value of other real estate owned is determined when the asset is transferred to foreclosed assets. Fair values of foreclosed assets held for sale are generally based on third party appraisals, broker price opinions, or other valuations of property, resulting in a Level 3 classification. Management requires updated valuations for all other real estated owned on an annual basis.

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				Significant				Significant				Total
	Prices in Active				Other				Unobservable
	Markets				Observable				Inputs
	(Level 1)				Inputs				(Level 3)
					(Level 2)
December 31, 2014
Other real estate owned	$	—			$	—			$	80			$	80

Acquired other real estate owned	—				—				10,859				10,859

Total other real estate owned	$	—			$	—			$	10,939			$	10,939


December 31, 2013
Other real estate owned	$	—			$	—			$	980			$	980

Acquired other real estate owned	—				—				55,982				55,982

Total other real estate owned	$	—			$	—			$	56,962			$	56,962


Other real estate owned (OREO) includes real property that has been acquired in satisfaction of loans receivable, organic and acquired, and bank premises formerly, but no longer, used for a specific business purpose. Property acquired in satisfaction of loans receivable, consisting of real estate acquired through foreclosure or a deed in lieu of foreclosure 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. Management considers a number of factors in estimating fair value including appraised value, estimated selling prices and current market conditions. Any excess of the loan balance over the fair value less estimated costs to sell is treated as a charge against the allowance for loan losses at the time of foreclosure. Bank premises are transferred at the lower of carrying value or fair value, less estimated selling costs. For acquired OREO, the loan is transferred into OREO at its fair value, not to exceed the carrying value of the loan at foreclosure. Management periodically reviews the carrying value of OREO for impairment and adjusts the values as appropriate through noninterest expense.















The following table is a reconciliation of the fair value measurement of other real estate owned disclosed in accordance with ASC Topic 820, Fair Value Measurements and Disclosures, to the amount recorded on the consolidated statements of financial condition (dollars in thousands):


	December 31, 2014				December 31, 2013
Other real estate owned:
Other real estate owned at fair value	$	80			$	980

Estimated selling costs	(6		)		(15		)
Other real estate owned	$	74			$	965


Acquired other real estate owned:
Other real estate owned at fair value	$	10,859			$	55,982

Estimated selling costs and other adjustments	(2,365		)		(9,760		)
Other real estate owned	$	8,494			$	46,222


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):


December 31, 2014		Fair Value				Valuation Technique		Unobservable Inputs		Range (Weighted Average)
SBA servicing rights		$	1,516			Discounted cash flows		Discount rate		8% - 14% (11%)
								Prepayment speed		4% - 9% (7%)
Impaired loans - collateral dependent		$	5,167			Third party appraisal		Management discount for property type and recent market volatility		0% - 50% (9%)

Other real estate owned		$	80			Third party appraisal		Management discount for property type and recent market volatility		0% - 0% (0%)

Acquired other real estate owned		$	10,859			Third party appraisal		Management discount for property type and recent market volatility		0% - 76% (45%)



December 31, 2013		Fair Value				Valuation Technique		Unobservable Inputs		Range (Weighted Average)
Impaired loans - collateral dependent		$	1,962			Third party appraisal		Management discount for property type and recent market volatility		0% - 50% (13%)

Other real estate owned		$	980			Third party appraisal		Management discount for property type and recent market volatility		0% - 31% (6%)

Acquired other real estate owned		$	55,982			Third party appraisal		Management discount for property type and recent market volatility		0% - 84% (39%)


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 estimated fair value amounts have been determined by the Company 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 December 31, 2014 and 2013.


			December 31, 2014								December 31, 2013
	Fair Value Hierarchy Level		Carrying				Estimated				Carrying				Estimated
			Amount				Fair Value				Amount				Fair Value
Assets:
Cash and cash equivalents	Level 1		$	481,158			$	481,158			$	598,749			$	598,749

Investment securities available-for-sale	Levels 1 & 2		640,086				640,086				387,048				387,048

Mortgage loans held for sale	Level 2		3,174				3,245				897				897

Net loans	Level 3		1,605,891				1,646,222				1,346,904				1,396,958

Other real estate owned	Level 3		8,568				10,939				47,187				56,962

FDIC receivable for loss share agreements, net	Level 3		22,320				7,572				107,843				58,496

Derivative financial instruments	Level 2		3,879				3,879				8,087				8,087

SBA servicing rights	Level 3		1,516				1,516				—				—

Accrued interest receivable	Level 2		5,989				5,989				2,935				2,935

Federal Home Loan Bank stock	Level 3		2,512				2,512				3,195				3,195

Liabilities:
Deposits	Level 2		$	2,391,682			$	2,391,805			$	2,128,325			$	2,128,611

Securities sold under agreements to repurchase	Level 2		—				—				1,216				1,216

Notes payable	Level 2		2,771				2,771				5,682				5,682

Derivative financial instruments	Level 2		1,666				1,666				764				764

Accrued interest payable	Level 2		887				887				865				865


Cash and Cash Equivalents

The carrying amount approximates fair value because of the short maturity of these instruments.

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, exclusive of expected cash flow reimbursements from the FDIC for the loans covered by loss share agreements. 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 losses. Subsequent increases to the expected cash flows results in a reversal of the provision for loan 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.

FDIC Receivable for Loss Share Agreements

The FDIC receivable is recorded at fair value at the acquisition date. The FDIC receivable is recognized at the same time as the purchased loans, and measured on the same basis, subject to collectability or contractual limitations, and the FDIC receivable is impacted by changes in estimated cash flows associated with these loans. Increases in the amount expected to be collected from the FDIC are recognized immediately whereas decreases are amortized over the lesser of the life of the loan or the life of the loss share agreement.

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 cash flows based on the maturity date. The discount rate is estimated using the rates currently offered for deposits of similar remaining maturities.

Securities Sold Under Agreements to Repurchase and Notes Payable

The fair value of securities sold under agreements to repurchase approximates the carrying amount because of the short maturity of these borrowings. The discount rate is estimated using the rates currently offered for borrowings of similar remaining maturities. 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.

Income_Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Income Taxes	Note 22: Income Taxes

	The components of income tax expense were as follows (dollars in thousands):


		Years Ended December 31
		2014				2013			2012
	Current tax provision:
	Federal	$	25,617			$	46,180		$	20,726

	State	2,885				4,784			582

	Total current tax provision	28,502				50,964			21,308

	Deferred tax provision:
	Federal	(8,970		)		(39,709		)	(8,877		)
	State	(1,211		)		(4,688		)	(9		)
	Total deferred tax provision	(10,181		)		(44,397		)	(8,886		)
	Total income tax provision	$	18,321			$	6,567		$	12,422


	Income tax expense differed from amounts computed by applying the Federal statutory rate of 35% to income before income taxes due to the following factors (dollars in thousands):


		Years Ended December 31
		2014				2013			2012
	Statutory Federal income taxes	$	17,234			$	6,760		$	12,307

	State taxes, net of federal benefit	1,088				62			372

	Tax-exempt interest	(177		)		(247		)	(143		)
	Bank-owned life insurance income	(467		)		(474		)	(489		)
	Other	643				466			375

	Actual income taxes	$	18,321			$	6,567		$	12,422








	The components of the net deferred tax liability included in other liabilities in the accompanying consolidated statement of financial condition are as follows (dollars in thousands):


		31-Dec
		2014				2013
	Deferred tax assets
	Allowance for loan losses	$	11,077			$	13,176

	Net operating losses and credit carryforward	5,658				7

	Accrued compensation	4,095				3,941

	Tax basis difference on acquired assets	2,426				—

	FDIC clawback liability	2,191				1,812

	Other real estate owned	554				8

	Unrealized losses on cash flow hedges	183				—

	Estimated loss on acquired failed bank assets	—				30,328

Other	618				80

Total deferred tax assets	26,802				49,352


Deferred tax liabilities
FDIC loss share receivable	$	(8,633	)		$	(39,901	)
Intangible asset basis difference	(3,880		)		(3,364		)
Unrealized gains on securities available-for-sale	(2,655		)		(2,327		)
Deferred gain on FDIC-assisted transactions	(1,532		)		(12,985		)
Estimated gain on acquired failed bank assets	(1,308		)		—

Premises and equipment	(883		)		(1,477		)
Unrealized gains on cash flow hedges	—				(457		)

Other	(1,187		)		(1,188		)
Total deferred tax liabilities	(20,078		)		(61,699		)

Net Deferred Tax Asset (Liability)	$	6,724			$	(12,347	)


Based on management’s belief that it is more likely than not that all net deferred tax asset benefits will be realized, there was no valuation allowance at December 31, 2014. At December 31, 2014, the Company had Federal and State tax net operating loss carryforwards, related to the Bank of Atlanta acquisition, of approximately $15.0 million. The loss carryforwards can be deducted annually from future taxable income through 2034, subject to an annual limitation of approximately $800,000. At December 31, 2013, the Company had loss carryforwards of approximately $180,000, all of which were utilized in 2014. Currently, tax years 2012 to present are open for examination by Federal and State taxing authorities.

Earnings_Per_Share

Earnings Per Share	12 Months Ended
	Dec. 31, 2014
Earnings Per Share [Abstract]
Earnings Per Share	Note 23: Earnings Per Share

	Earnings per share have been computed based on the following weighted average number of common shares outstanding (dollars in thousands, except per share data):


		Years Ended December 31
		2014		2013		2012
	Numerator:
	Net Income	$	30,918	$	12,747	$	22,742

	Denominator:
	Weighted average common shares outstanding	32,175,363		31,978,844		31,696,358

	Weighted average dilutive grants	1,560,989		1,311,721		1,193,916

	Weighted average common shares outstanding including dilutive grants	33,736,352		33,290,565		32,890,274


	Net Income per share:
	Basic	$	0.96	$	0.4	$	0.72

	Diluted	$	0.92	$	0.38	$	0.69

Accumulated_Other_Comprehensiv

Accumulated Other Comprehensive Income	12 Months Ended
	Dec. 31, 2014
Equity [Abstract]
Accumulated Other Comprehensive Income	Note 24: Accumulated Other Comprehensive Income

	Accumulated other comprehensive income (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 and gains and losses on derivative instruments that are designated as, and qualify as, cash flow hedges. The components of AOCI are reported net of related tax effects.

	The components of AOCI and changes in those components are as follows (dollars in thousands):


		Investment Securities			Cash Flow Hedges			Total
		Available-for-Sale			(Effective Portion)
	Balance, December 31, 2011	$	(2,677	)	$	—		$	(2,677	)

	Other comprehensive income before income taxes:
	Net change in unrealized gains	17,557			—			17,557

	Amounts reclassified for net gains realized and included in earnings	(318		)	—			(318		)

	Income tax expense	6,034			—			6,034

	Balance, December 31, 2012	$	8,528		$	—		$	8,528

	Other comprehensive income before income taxes:
	Net change in unrealized (losses) gains	(5,389		)	1,264			(4,125		)

	Amounts reclassified for net (gains) losses realized and included in earnings	(1,081		)	40			(1,041		)

	Income tax (benefit) expense	(2,265		)	457			(1,808		)

	Balance, December 31, 2013	$	4,323		$	847		$	5,170

	Other comprehensive income (loss) before income taxes:
	Net change in unrealized gains (losses)	62			(2,036		)	(1,974		)

	Amounts reclassified for net (gains) losses realized and included in earnings	(246		)	259			13

	Income tax benefit	(71		)	(640		)	(711		)
	Balance, December 31, 2014	$	4,210		$	(290	)	$	3,920


	Reclassifications out of AOCI for the periods presented are as follows (dollars in thousands):


		31-Dec
	AOCI components and affected line items on Consolidated Statements of Income	2014			2013			2012
	Investment securities available-for-sale
	Gain on sale of investment securities	$	(246	)	$	(1,081	)	$	(318	)
	Income tax expense	95			378			111

	Net income	$	(151	)	$	(703	)	$	(207	)

	Cash flow hedges (effective portion)
	Interest expense on deposits	$	259		$	40		$	—

	Income tax benefit	(100		)	(14		)	—

	Net income	$	159		$	26		$	—

Condensed_Financial_Informatio

Condensed Financial Information of State Bank Financial Corporation (Parent Company Only Financial Statements)	12 Months Ended
	Dec. 31, 2014
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
Condensed Financial Information of State Bank Financial Corporation (Parent Company Only Financial Statements)	Note 25: Condensed Financial Information of State Bank Financial Corporation (Parent Company Only Financial Statements)



	Condensed Statements of Financial Condition
	(Dollars in thousands)



		2014				2013
	Assets
	Cash and due from banks	$	85,607			$	56,365

	Investment in subsidiary	377,188				379,756

	Other assets	1,830				1,062

	Total assets	464,625				437,183

	Liabilities
	Other liabilities	530				—

	Total liabilities	530				—

	Shareholders' equity	464,095				437,183

	Total liabilities and shareholders' equity	$	464,625			$	437,183




	Condensed Statements of Income
	(Dollars in thousands)

		Years Ended December 31
		2014				2013				2012
	Dividends from subsidiary	59,000				25,000				21,503

	Other operating expense	2,404				1,456				1,064

	Income before income tax and equity in undistributed net income of subsidiary	56,596				23,544				20,439

	Income tax benefit	(794		)		(495		)		(371		)
	Income before equity in undistributed net income of subsidiary	57,390				24,039				20,810

	Equity in earnings of subsidiary (less than) greater than dividends received	(26,472		)		(11,292		)		1,932

	Net income	$	30,918			$	12,747			$	22,742




	Condensed Statements of Cash Flows
	(Dollars in thousands)

		Years Ended December 31
		2014				2013				2012
	Cash flows from operating activities:
	Net income	$	30,918			$	12,747			$	22,742

	Adjustments to reconcile net earnings to net cash provided by operating activities:
	Undistributed earnings of subsidiary less than (greater than) dividends received	26,472				11,292				(1,932		)

	Share-based compensation expense	2,035				1,321				779

Other, net	(238		)		(301		)		(561		)
Net cash provided by operating activities	59,187				25,059				21,028

Cash flows from investing activities:
Bank of Atlanta acquisition cash consideration paid	(25,154		)		—				—

Net cash used in investing activities	(25,154		)		—				—

Cash flows from financing activities:
Issuance of common stock	195				100				167

Repurchase of stock warrants	—				(3		)		(55		)

Restricted stock activity	(156		)		—				—

Dividends paid	(4,830		)		(3,840		)		(1,910		)
Net cash used in financing activities	(4,791		)		(3,743		)		(1,798		)
Net increase in cash and cash equivalents	29,242				21,316				19,230

Cash and cash equivalents, beginning	56,365				35,049				15,819

Cash and cash equivalents, ending	$	85,607			$	56,365			$	35,049

Nature_of_Business_and_Summary1

Nature of Business and Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2014
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation

	In preparing the consolidated financial statements, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the balance sheet and revenue and expenses for the period. Actual results could differ significantly from those estimates.

	Significant estimates include the allowance for loan and lease losses, the valuation of real estate acquired in connection with foreclosures or in satisfaction of loans, the amount and timing of expected cash flows from purchased credit impaired loans and, with respect to covered loans, the FDIC receivable for loss share agreements, and the fair value of investment securities and other financial instruments.

	A substantial portion of the Company's loans are secured by real estate located in its market area. Accordingly, the ultimate collectability of a substantial portion of the Company's loan portfolio is susceptible to changes in the real estate market conditions.

	As defined by authoritative guidance, segment disclosures require reporting information about a company's operating segments using a “management approach.” Reportable segments are identified as those revenue-producing components for which separate financial information is produced internally and which are subject to evaluation by the chief operating decision maker in deciding how to allocate resources to segments. The Company operates as one reportable segment.
Cash and Cash Equivalents	Cash and Cash Equivalents

	Cash and cash equivalents, as presented in the consolidated financial statements, includes cash on hand, cash items in process of collection and interest-bearing deposits with other financial institutions with maturities less than 90 days.
Investments	Investments

	Management determines the appropriate classifications of investment securities at the time of purchase and reevaluates such designation as needed. At December 31, 2014 and 2013, the Company classified all of its investment securities as available-for-sale. Investments available-for-sale are reported at fair value, as determined by independent quotations. Purchase premiums and discounts on investment securities are amortized and accreted to interest income using the effective interest rate method over the remaining lives of the securities, taking into consideration assumed prepayment patterns. Realized gains and losses are derived using the specific identification method for determining the cost of securities sold and are recognized on the trade date.

	Management evaluates securities for other-than-temporary impairment ("OTTI") on at least a quarterly basis, and more frequently when economic or market conditions warrant such an evaluation. In connection with the assessment for other than temporary impairment of investment securities, management obtains fair value estimates by independent quotations, assesses current credit ratings and related trends, reviews relevant delinquency and default information, assesses expected cash flows and coverage ratios, assesses the relative strength of credit support from less senior tranches of the securities, reviews average credit score data of underlying mortgages, and assesses other current data. 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.

	Unrealized holding losses, other than those determined to be other than temporary, and unrealized holding gains are excluded from net income and are reported, net of tax, in other comprehensive income and in accumulated other comprehensive income, a separate component of shareholders' equity. A decline in the market value of any available-for-sale security below cost that is deemed other than temporary results in a charge to earnings and the establishment of a new cost basis for that security. At December 31, 2014 and 2013, the Company did not have any securities with other than temporary impairment.

	Investment in stock of the Federal Home Loan Bank ("FHLB") is required of every federally insured financial institution which utilizes the FHLB's services. The investment in FHLB stock is included in "other assets" at its original cost basis, as cost approximates fair value since there is no readily determinable market value for such investments.

Organic Loans	(e) Organic Loans

	Organic loans are loans originated by the Company that management has the intent and ability to hold for the foreseeable future, until maturity, or until payoff. Organic loans are reported at their principal amounts outstanding, net of unearned income, net of deferred loan fees and origination costs, net of unamortized premiums or discounts on purchased participation loans, and net of the allowance for loan losses. Interest income is recognized using the simple interest method on the daily balance of the principal amount outstanding. Unearned income, primarily arising from deferred loan fees net of certain origination costs, is amortized over the lives of the underlying loans using the effective interest rate method.

	Past due status is based on the contractual terms of the loan agreement. Generally, the accrual of interest income is discontinued and loans are placed on nonaccrual status when reasonable doubt exists as to the full, timely collection of interest or principal. Interest previously accrued but not collected is reversed against current period interest income when such loans are placed on nonaccrual status. Interest on nonaccrual loans when ultimately collected is recorded as a principal reduction. Nonaccrual loans are returned to accrual status when all principal and interest amounts contractually due are brought current. In addition, the future payments must be reasonably assured along with a period of at least six months of repayment performance by the borrower depending on the contractual payment terms. When it has been determined that a loan cannot be collected in whole or in part, then the uncollectible portion is charged-off.

	The Company considers an organic loan 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. Additionally, loans for which the terms have been modified and for which (i) the borrower is experiencing financial difficulties and (ii) a concession has been granted to the borrower by the Company are considered troubled debt restructurings ("TDRs") and are included in impaired loans. The Company's policy requires that all impaired loans with contractual balances of $500,000 and greater be individually reviewed for impairment. Loans are reviewed for impairment based on the present value of expected future cash flows, discounted at the loan's effective interest rate, or the loan's observable market price, or the fair value of the collateral less disposal costs, as applicable, if the loan is collateral dependent. The Company's policy requires that large pools of smaller balance homogeneous loans, such as consumer, residential and installment loans, be collectively evaluated for impairment by the Company. Impairment losses are included in the allowance for loan losses through a provision charge to earnings. All loans considered impaired are placed on nonaccrual status in accordance with policy. The interest portion of cash receipts on impaired loans are recorded as income when received unless full recovery of principal is in doubt whereby cash received is recorded as a reduction to the Company's recorded investment in the loan.

	All organic impaired loans are reviewed at least quarterly. Reviews may be performed more frequently if material information is available before the next scheduled quarterly review. Existing valuations are reviewed to determine if additional discounts or new appraisals are required. The discounts may include the following: length of time to market and sell the property, as well as expected maintenance costs, insurance and taxes and real estate commissions on sale.
Purchased Loans	Purchased Loans

	Purchased non-credit impaired

	Loans acquired without evidence of deterioration in credit quality since origination, also referred to as purchased non-credit impaired loans (PNCI), are initially recorded at estimated fair value on the acquisition date. Premiums and discounts created when the loans are recorded at their estimated fair values at acquisition are amortized or accreted over the remaining term of the loan as an adjustment to the related loan's yield.

	The Company accounts for performing loans acquired in business combinations using the contractual cash flows method whereby premiums and discounts are recognized using the interest method. There is no allowance for loan losses established at the acquisition date for purchased loans. Following the acquisition of these loans, the policies regarding nonaccrual and impaired loan status is consistent with that described above for organic loans. A provision for loan losses is recorded should there be deterioration in these loans subsequent to the acquisition.

	Purchased credit impaired

	Purchased credit impaired (PCI) loans, defined as acquired loans, which at acquisition, management determined it was probable that the Company would be unable to collect all contractual principal and interest payments due, 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, if appropriate, an accretable discount. The nonaccretable discount, which is excluded from the carrying amount of acquired loans, is the difference between the contractually required payments and the cash flows expected to be collected at acquisition. Any excess of cash flows expected at acquisition over the estimated fair value is referred to as the accretable discount and is recognized in interest income over the remaining life of the loan when there is reasonable expectation about the amount and timing of such cash flows. The difference between actual prepayments and expected prepayments does not affect the nonaccretable discount. Subsequent decreases to the expected cash flows will generally result in a provision for loan losses. Subsequent increases in cash flows results in either a reversal of the provision for loan losses or a reclassification of the difference from nonaccretable to accretable, both have a positive impact on the accretable discount.
	All loans acquired in failed bank transactions are considered to have evidence of credit deterioration, as limited due diligence is afforded which does not allow a sufficient detailed review to classify the acquired loans into credit deterioration and performing categories. Covered loans, defined as loans covered by loss share agreements with the FDIC, are recorded at fair value at the date of acquisition, exclusive of expected cash flow reimbursements from the FDIC.

	At the time of acquisition, purchased credit impaired loans are either accounted for as specifically-reviewed or as part of a loan pool. Loan pools are created by grouping loans with similar risk characteristics, the intent being to create homogeneous pools. Loans are grouped into pools based on a combination of various factors including product type, cohort, risk classification and term. Loans remain in the assigned pool until the individual pools have resolved. Gains and losses on individual loans within pools are deferred and retained in the pools until the pool closes, which is either when all the loans are resolved or the pool’s aggregate recorded investment reaches zero.
Allowance for Loan and Lease Losses	Allowance for Loan and Lease Losses ("ALLL")

	The ALLL represents the amount considered adequate by management to absorb losses inherent in the loan portfolio at the balance sheet date. The ALLL is adjusted through provisions for loan losses charged or credited to operations. The provisions are generated through loss analyses performed on organic loans, estimated additional losses arising on PNCI loans subsequent to acquisition and impairment recognized as a result of decreased expected cash flows on PCI loans due to further credit deterioration since the previous quarterly cash flow re-estimation. The ALLL consists of both specific and general components. Individual loans are charged off against the ALLL when management determines them to be uncollectible. Subsequent recoveries, if any, of loans previously charged-off are credited to the ALLL.

	All known and inherent losses that are both probable and reasonable to estimate are recorded. While management utilizes available information to recognize losses on loans, future additions to the allowance may be necessary based on changes in economic conditions. In addition, various regulatory agencies, as an integral part of their examination process, periodically review the allowance. Such agencies may require adjustments to the ALLL based on their judgment about information available at the time of their examination.

	The Company assesses the adequacy of the ALLL quarterly with respect to organic and purchased loans. The assessment begins with a standard evaluation and analysis of the loan portfolio. All loans are consistently graded and monitored for changes in credit risk and possible deterioration in the borrower’s ability to repay the contractual amounts due under the loan agreements.

	Allowance for loan and lease losses for organic loans:

	The ALLL for organic loans consists of two components:

	(1)a specific amount against identified credit exposures where it is probable the Company will be unable to collect all amounts due according to the contractual terms of the loan agreements; and
	(2)a general amount based upon historical losses that are then adjusted for qualitative factors representative of various economic indicators and risk characteristics of the loan portfolio.

	Management establishes the specific amount by examining impaired loans. The majority of the Company's impaired loans are collateral dependent; therefore, nearly all of the specific allowances are calculated based on the fair value of the collateral less disposal costs, if applicable.

	Management establishes the general amount by reviewing the remaining loan portfolio (excluding those impaired loans discussed above) and incorporating allocations based on historical losses. The calculation of the general amount is subjected to qualitative factors that are somewhat subjective. The qualitative testing attempts to correlate the historical loss rates with current economic factors and current risks in the portfolio. The qualitative factors consist of but are not limited to:

	(1)economic factors including changes in the local or national economy;
	(2)the depth of experience in lending staff;
	(3)asset quality trends; and
	(4)seasoning and growth rate of the portfolio segments.

	After assessing the applicable factors, the remaining amount is evaluated based on management's experience and the level of the organic ALLL is compared with historical trends and peer information as a reasonableness test.

	Allowance for loan and lease losses for purchased loans:

	Purchased loans are initially recorded at their acquisition date fair values. The carryover of allowance for loan losses is prohibited as any credit losses in the loans are included in the determination of the fair value of the loans at the acquisition date. Fair values for purchased loans are based on a discounted cash flow methodology that involves assumptions and judgments as to credit risk, default rates, loss severity, collateral values, discount rates, payment speeds, prepayment risk and liquidity risk.

	The Company maintains an ALLL on purchased loans based on credit deterioration subsequent to the acquisition date. For purchased credit impaired loans accounted for under ASC 310-30, management establishes an allowance for credit deterioration subsequent to the date of acquisition by quarterly re-estimating expected cash flows with any decline in expected cash flows recorded as impairment in the provision for loan losses. Impairment is measured as the excess of the recorded investment in a loan over the present value of expected future cash flows discounted at the pre-impairment accounting yield of the loan. For any increases in cash flows expected to be collected, the Company first reverses only previously recorded ALLL, then adjusts the amount of accretable yield recognized on a prospective basis over the loan’s remaining life.

	For purchased loans that are not deemed impaired at acquisition, also referred to as purchased non-credit impaired loans, credit discounts representing the principal losses expected over the life of the loan are a component of the initial fair value and the discount is accreted to interest income over the life of the asset. Subsequent to the purchase date, the method used to evaluate the sufficiency of the credit discount is similar to originated loans, and if necessary, additional reserves are recognized in the allowance for loan and lease losses.

	For loans covered by loss share agreements with the FDIC, the required allowance is recorded gross and the related estimated reimbursement for losses due from the FDIC is recorded as an adjustment to the FDIC receivable.
Mortgage Loans Held for Sale	Mortgage Loans Held for Sale

	Loans originated and intended for sale in the secondary market are carried at the lower of cost or estimated fair value. Estimated fair value is determined on the basis of existing forward commitments or the current market value of similar loans. Net unrealized losses, if any, are recognized through a valuation allowance by charges to income.
Other Real Estate Owned	Other Real Estate Owned

	Other real estate owned consists of real property acquired through mergers and acquisitions, acquired through foreclosure in satisfaction of loans receivable, and bank premises formerly, but no longer, used for a specific business purpose. Other real estate is distinguished between organic and acquired consistent with the organic and purchased loan categories, respectively, at time of foreclosure.

	Real estate acquired through foreclosure of loans, consisting of properties obtained through foreclosure proceedings or acceptance of a deed in lieu of foreclosure, is reported on an individual asset basis at the lower of cost or fair value, less disposal costs. Fair value is determined on the basis of current appraisals, comparable sales, and other estimates of value obtained principally from independent sources. When properties are acquired through foreclosure of loans, any excess of the loan balance at the time of foreclosure over the fair value of the real estate held as collateral, less estimated selling costs, is recognized and charged to the allowance for loan losses. Based upon management's evaluation of the real estate acquired through foreclosure, additional expense, when necessary, is recorded in current period earnings in an amount sufficient to reflect any estimated declines in fair value. Gains or losses recognized on the disposition of the properties are recorded in net costs of operations of other real estate in the consolidated statements of income.

	Other real estate covered under loss share agreements with the FDIC is reported exclusive of expected reimbursement cash flows from the FDIC. Subsequent adjustments to the estimated recoverable value of the other real estate result in a reduction of other real estate and a charge to other expense. The FDIC receivable is increased for the estimated amount to be reimbursed, with a corresponding offsetting amount recorded to other expense.

	Banking premises are transferred at the lower of carrying value or fair value, less estimated selling costs and any write-down is expensed as incurred.

	Costs of improvements to real estate are capitalized, while costs associated with holding the real estate are charged to income. Costs associated with holding covered other real estate are charged to income, net of any expected reimbursements from the FDIC relating to covered external expenses.
Premises and Equipment	Premises and Equipment

	Premises and equipment are stated at cost, less accumulated depreciation, which is computed using the straight-line method over the estimated useful lives of the assets. The estimated useful lives of the assets range from 10 to 25 years for buildings and improvements and 3 to 15 years for furniture, fixtures, and equipment. Costs of improvements are capitalized and depreciated, while operating expenses are charged to current earnings.
Goodwill and other Intangible Assets	Goodwill and Other Intangibles

	Goodwill represents the excess of the purchase price over the fair value of the net identifiable assets acquired in a business combination. Goodwill and other intangibles deemed to have an indefinite life are not amortized but instead are subject to review for impairment annually, or more frequently if deemed necessary. Also in connection with business combinations, the Company records core deposit intangibles, representing the value of the acquired core deposit base, and other identifiable intangible assets. Core deposit intangibles and other identifiable intangible assets are amortized on a straight-line basis over their estimated useful lives ranging up to 5 years.
SBA Servicing Rights	(l) Small Business Administration ("SBA") Servicing Rights

	All sales of SBA loans, consisting of the guaranteed portion, are executed on a servicing retained basis. The standard sale structure under the SBA Secondary Participation Guaranty Agreement provides for the Company to retain a portion of the cash flow from the interest payment received on the loan. This cash flow is commonly known as a servicing spread. For any guaranteed loans sold at a premium, SBA regulations require the lender to keep a minimum 100 basis points in servicing spread which includes a minimum service fee of 40 basis points and a minimum premium protection fee of 60 basis points. The servicing spread is recognized as a servicing asset to the extent the spread exceeds adequate compensation for the servicing function. The fair value of the servicing asset is measured on a recurring basis at the present value of future cash flows using market-based discount assumptions. The future cash flows for each asset are based on their unique characteristics and 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 "other noninterest expense" on the consolidated statements of income.

	Servicing fee income is recorded for fees earned for servicing loans. The fees are based on a contractual percentage of the outstanding principal or a fixed amount per loan and are recorded as income when earned.
FDIC Receivable for Loss Share Agreements	FDIC Receivable for Loss Share Agreements and Clawback Liability

	The FDIC receivable for loss share agreements is measured separately from the related covered assets and is not contractually embedded in the assets or transferable should the assets be sold. The fair value of the FDIC receivable was estimated at acquisition using projected cash flows related to loss share agreements based on the expected reimbursements for losses using the applicable loss share percentages. These cash flows were discounted to reflect the estimated timing of the receipt of the loss share reimbursements from the FDIC. The FDIC receivable is reviewed and updated prospectively as loss estimates related to covered assets change and as reimbursements are received or are expected to be received from the FDIC. Improvements in the credit quality or cash flows of covered loans (reflected as an adjustment to yield and accreted into income over the remaining life of the covered loans) decrease the basis of the FDIC receivable, with such decreases being amortized into income over the remaining life of the loan or life of the loss share agreement, whichever is shorter. Any applicable true-up payments owed the FDIC for loss share agreements with clawback provisions are discounted to reflect the estimated timing of the payment and such amount is reported as a liability in "other liabilities" on the consolidated statements of financial condition. In addition, recoveries of FDIC-indemnified losses on loans must be reimbursed to the FDIC during the coverage period under the loss share agreements and up to three years after coverage expires for commercial loans.
Derivative Instruments and Hedging Activities	Derivative Instruments and Hedging Activities

	The Company enters into derivative financial instruments to manage interest rate risk, facilitate asset/liability management strategies and manage other exposures. These instruments may include interest rate swaps and interest rate caps and floors. All derivative financial instruments are recognized on the consolidated balance sheets as other assets or other liabilities, as applicable, at estimated fair value. The Company enters into master netting agreements with counterparties and/or requires collateral to cover exposures. In most cases, counterparties post at a zero threshold regardless of rating.

	Interest rate swaps are agreements to exchange interest payments based upon notional amounts. Interest rate swaps subject the Company to market risk associated with changes in interest rates, as well as the credit risk that the counterparty will fail to perform. Option contracts involve rights to buy or sell financial instruments on a specified date or over a period at a specified price. These rights do not have to be exercised. Some option contracts such as interest rate caps, involve the exchange of cash based on changes in specified indices. Interest rate caps are contracts to hedge interest rate increases based on a notional amount. Interest rate caps subject the Company to market risk associated with changes in interest rates, as well as the credit risk that the counterparty will fail to perform.

	Derivative financial instruments are designated, based on the exposure being hedged, as either fair value or cash flow hedges. Fair value hedge relationships mitigate exposure to the change in fair value of an asset, liability or firm commitment. Under the fair value hedging model, gains or losses attributable to the change in fair value of the derivative instrument, as well as the gains and losses attributable to the change in fair value of the hedged item, are recognized in other noninterest income in the period in which the change in fair value occurs. Hedge ineffectiveness is recognized as other noninterest income to the extent the changes in fair value of the derivative do not offset the changes in fair value of the hedged item. The corresponding adjustment to the hedged asset or liability is included in the basis of the hedged item, while the corresponding change in the fair value of the derivative instrument is recorded as an adjustment to other assets or other liabilities, as applicable. Cash flow hedge relationships mitigate exposure to the variability of future cash flows or other forecasted transactions. For cash flow hedge relationships, the effective portion of the gain or loss related to the derivative instrument is recognized as a component of accumulated other comprehensive income (loss). The ineffective portion of the gain or loss related to the derivative instrument, if any, is recognized in earnings as other noninterest income during the period of change. Amounts recorded in accumulated other comprehensive income (loss) are recognized in earnings in the period or periods during which the hedged item impacts earnings.

	The Company formally documents all hedging relationships between hedging instruments and the hedged items, as well as its risk management objective and strategy for entering into various hedge transactions. Methodologies related to hedge effectiveness and ineffectiveness are consistent between similar types of hedge transactions and typically include (i) statistical regression analysis of changes in the cash flows of the actual derivative and a perfectly effective hypothetical derivative, and (ii) statistical regression analysis of changes in the fair values of the actual derivative and the hedged item. The Company performs retrospective and prospective effectiveness testing using quantitative methods and does not assume perfect effectiveness through the matching of critical terms. Assessments of hedge effectiveness and measurements of hedge ineffectiveness are performed at least quarterly for ongoing effectiveness.
Bank-Owned Life Insurance	Bank-Owned Life Insurance ("BOLI")

	The Company has purchased life insurance policies on certain key executives. Bank-owned life insurance is recorded at the amount that can be realized under the insurance contract at the balance sheet date, which is the cash surrender value that is probable at settlement. Increases to cash surrender values are recorded as a component of "other noninterest income" on the consolidated statements of income.
Share-Based Compensation	Share-Based Compensation

	The Company has an equity compensation plan providing for the grant of equity awards, which is described more fully in Note 17. The Company uses the fair value method of recognizing expense for share-based compensation, whereby compensation cost is measured at the grant date based on the value of the award and is recognized on a straight-line basis over the vesting period. Compensation expense relating to equity awards is reflected in net income as part of "salaries and employee benefits" on the consolidated statements of income.
Income Taxes	Income Taxes

	The Company recognizes deferred tax assets and liabilities for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax basis. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. In assessing the realization of deferred tax assets, management considers whether it is more likely than not that some portion or all of the deferred tax assets will not be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become deductible. Management considers the scheduled reversal of deferred tax liabilities, projected future taxable income, and tax planning strategies by jurisdiction and entity in making this assessment. Interest and penalties related to the Company’s tax positions are recognized as a component of the income tax provision.
Comprehensive Income	Comprehensive Income

	In addition to net income for the period, comprehensive income for the Company consists of changes in unrealized holding gains and losses on investments classified as available-for-sale and changes in fair value of the effective portion of derivative financial instruments designated as cash flow hedges. The changes are reported net of income taxes and reclassification adjustments.
Acquisitions	Acquisitions

	Accounting principles generally accepted in the United States of America ("US GAAP") require that the acquisition method of accounting, formerly referred to as the purchase method, be used for all business combinations and that an acquirer be identified for each business combination. Under US GAAP, the acquirer is the entity that obtains control of one or more businesses in the business combination, and the acquisition date is the date the acquirer achieves control. US GAAP requires that the acquirer recognize the fair value of assets acquired, liabilities assumed, and any noncontrolling interest in the acquiree at the acquisition date.
Basic and Diluted Net Income Per Share	Basic and Diluted Net Income Per Share

	Basic net income per share excludes dilution and is computed by dividing net income by the weighted average number of common shares outstanding for the period. Diluted net income per share reflects the potential dilution that could occur if securities or other contracts to issue common stock were exercised or converted into common stock or resulted in the issuance of common stock that then shared in the net income of the Company. Diluted net income per share is computed by dividing net income by the total of the weighted average number of shares outstanding plus the dilutive effect of the outstanding options, warrants and restricted stock awards.
Recent Accounting Pronouncements	Recent Accounting Pronouncements

	In January 2014, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update (ASU) 2014-04, Receivables—Troubled Debt Restructurings by Creditors (Subtopic 310-40): Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure. The new ASU clarifies when an in substance repossession or foreclosure occurs – that is, when a creditor should be considered to have received physical possession of residential real estate property collateralizing a consumer mortgage loan such that the loan receivable should be derecognized and the real estate property recognized. The ASU requires a creditor to reclassify a collateralized consumer mortgage loan to real estate property upon obtaining legal title to the real estate collateral, or when the borrower voluntarily conveys all interest in the real estate property to the lender to satisfy the loan through a deed in lieu of foreclosure or similar legal agreement. The amendments in this update are effective for fiscal years, and interim periods within those years, beginning after December 15, 2014. The guidance is not expected to have a significant impact on the Company's financial position, results of operations or disclosures.

	In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606). The new ASU implements a common revenue standard that clarifies the principles for recognizing revenue from contracts with customers. The new accounting guidance, which does not apply to financial instruments, is effective for fiscal years, and interim periods within those years, beginning after December 15, 2016 and is not expected to have a significant impact on the Company's financial position, results of operations or disclosures.

	In August 2014, the FASB issued ASU 2014-14, Receivables - Troubled Debt Restructurings by Creditors (Subtopic 310-40): Classification of Certain Government-Guaranteed Mortgage Loans upon Foreclosure, to address the diversity in practice regarding the classification and measurement of foreclosed loans which were part of a government-sponsored loan guarantee program (e.g. HUD, FHA, VA). The ASU outlines certain criteria that, if met, the loan (residential or commercial) should be derecognized and a separate other receivable should be recorded upon foreclosure at the amount of the loan balance (principal and interest) expected to be recovered from the guarantor. This ASU is effective for annual reporting periods beginning after December 15, 2014, including interim periods within that reporting period. Early adoption is permitted, provided the entity has adopted ASU 2014-04. The guidance is not expected to have a significant impact on the Company's financial position, results of operations or disclosures.

	In August 2014, the FASB issued ASU 2014-15, Presentation of Financial Statements - Going Concern (Subtopic 205-40): Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern, to reduce diversity in the timing and content of going concern disclosures. This ASU clarifies management’s responsibility to evaluate and provide related disclosures if there are any conditions or events, as a whole, that raise substantial doubt about the entity’s ability to continue as a going concern for one year after the date the financial statements are issued (or, if applicable, available to be issued). The amendments in this ASU are effective for the annual period ending after December 15, 2016, and for annual and interim periods thereafter. The guidance is not expected to have a significant impact on the Company's financial position, results of operations or disclosures.

	In November 2014, the FASB issued ASU 2014-16, Derivatives and Hedging (Topic 815): Determining Whether the Host Contract in a Hybrid Financial Instrument Issued in the Form of a Share Is More Akin to Debt or to Equity, to clarify how current U.S. GAAP should be interpreted in evaluating the economic characteristics and risks of a host contract in a hybrid financial instrument that is issued in the form of a share. Specifically, the amendments clarify that an entity should consider all relevant terms and features, including the embedded derivative feature being evaluated for bifurcation, in evaluating the nature of the host contract. The assessment of the substance of the relevant terms and features should incorporate a consideration of: (1) the characteristics of the terms and features themselves; (2) the circumstances under which the hybrid financial instrument was issued or acquired; and (3) the potential outcomes of the hybrid financial instrument, as well as the likelihood of those potential outcomes. The amendments in this ASU apply to all entities that are issuers of, or investors in, hybrid financial instruments that are issued in the form of a share. The amendments in this ASU are effective for annual reporting periods beginning after December 15, 2015, including interim periods within that reporting period. Early adoption is permitted. The impact of the guidance on the Company's financial position, results of operations or disclosures has not yet been evaluated.

	In November 2014, the FASB issued ASU 2014-17, Business Combinations (Topic 805): Pushdown Accounting (a consensus of the FASB Emerging Issues Task Force), to amend existing guidance related to the accounting by an acquired entity upon a change-in-control event. The amendments provide an acquired entity with an option to apply pushdown accounting in its separate financial statements upon occurrence of an event in which an acquirer obtains control of the acquired entity. An acquired entity may elect the option to apply pushdown accounting in the reporting period in which the change-in-control event occurs. An acquired entity should determine whether to elect to apply pushdown accounting for each individual change-in-control event in which an acquirer obtains control of the acquired entity. If pushdown accounting is not applied in the reporting period in which the change-in-control event occurs, an acquired entity will have the option to elect to apply pushdown accounting in a subsequent reporting period to the acquired entity's most recent change-in-control event. An election to apply pushdown accounting in a reporting period after the reporting period in which the change-in-control event occurred should be considered a change in accounting principle. If pushdown accounting is applied to an individual change-in-control event, that election is irrevocable. The amendments in this ASU are effective on November 18, 2014. After the effective date, an acquired entity can make an election to apply the guidance to future change-in-control events or to its most recent change-in-control event. However, if the financial statements for the period in which the most recent change-in-control event occurred already have been issued or made available to be issued, the application of this guidance would be a change in accounting principle. The guidance did not have a material impact on the Company's financial position, results of operations or disclosures because regulators require financial institutions to apply push down accounting for change-in-control acquisitions.

Acquisitions_Tables

Acquisitions (Tables)	12 Months Ended
	Dec. 31, 2014
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 Atlanta Bancorporation, Inc.			Fair Value Adjustments				As Recorded by the Company
	Assets
	Cash and due from banks	$	4,925		$	—			$	4,925

	Investment securities	45,060			139			(a)	45,199

	Loans, net	124,614			(3,436		)	(b)	121,178

	Other real estate owned	2,960			(1,340		)	(c)	1,620

	Core deposit intangible	—			1,460			(d)	1,460

	SBA servicing rights	1,509			—				1,509

	Other assets	7,036			3,046			(e)	10,082

	Total assets acquired	$	186,104		$	(131	)		$	185,973

	Liabilities
	Deposits:
	Noninterest-bearing	$	27,453		$	—			$	27,453

	Interest-bearing	121,035			302			(f)	121,337

	Total deposits	148,488			302				148,790

	Securities sold under agreements to repurchase	6,476			—				6,476

	FHLB advances	5,000			—				5,000

	Other liabilities	485			293			(g)	778

	Total liabilities assumed	160,449			595				161,044

	Net assets acquired	$	25,655		$	(726	)		24,929

	Cash consideration paid								(25,154		)
	Goodwill								$	225




	Explanation of fair value adjustments


	(a)	Adjustment reflects the gain on liquidation of certain securities immediately after close that was deemed to be primarily from Bank of Atlanta understatement of fair value rather than changes in market value.
	(b)	Adjustment reflects the fair value adjustment based on the Bank's third party valuation report and includes the adjustment to eliminate the recorded allowance for loan losses.
	(c)	Adjustment reflects the fair value adjustment based on the 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 the Bank's third party valuation report.
	(e)	Adjustment reflects the fair value adjustment based on the Bank's evaluation of acquired other assets and includes adjustments for deferred tax assets largely related to net operating losses that are deductible under Section 382.
	(f)	Adjustment reflects the fair value adjustment based on the Bank's evaluation of the acquired deposits.
	(g)	Adjustment reflects the fair value adjustment based on the Bank's evaluation of other liabilities and to record certain liabilities directly attributable to the acquisition of Bank of Atlanta.
Business Acquisition, Pro Forma Information	The following table discloses the impact of the merger with Bank of Atlanta (excluding the impact of merger-related expenses) since the acquisition on October 1, 2014 through December 31, 2014 (dollars in thousands). The table also presents certain pro forma information as if Bank of Atlanta had been acquired on January 1, 2014. These results combine the historical results of Bank of Atlanta in the Company's consolidated statement of income and, while certain adjustments were made for the estimated impact of certain fair value adjustments and other acquisition-related activity, they are not indicative of what would have occurred had the acquisition taken place on January 1, 2014 or 2013, respectively. Merger-related costs of $461,000 are included in the Company's consolidated statements of income for the year ended December 31, 2014 and are not included in the proforma statements below.


		Actual from acquisition date through December 31			Pro Forma Years Ended
					31-Dec
		2014			2014				2013
	Net interest income	$	1,547		$	151,820			$	192,595

	Net income	$	839		$	32,405			$	13,384

	Earnings per share:
	Basic				$	1.01			$	0.42

	Diluted				$	0.96			$	0.4

Purchased Credit Impaired Loans Purchased in Acquisition	The following is a summary of the purchased credit impaired loans acquired in the Bank of Atlanta transaction on October 1, 2014 (dollars in thousands):


		Purchased
		Credit Impaired
	Contractually required principal and interest at acquisition	$	16,623

	Contractual cash flows not expected to be collected (nonaccretable difference)	(7,002		)
	Expected cash flows at acquisition	9,621

	Accretable difference	(926		)
	Basis in acquired loans at acquisition - estimated fair value	$	8,695

Investment_Securities_Tables

Investment Securities (Tables)	12 Months Ended
	Dec. 31, 2014
Available-for-sale 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):


			December 31, 2014										31-Dec-13
	Investment Securities Available-for-Sale		Amortized			Unrealized			Unrealized		Fair Value		Amortized		Unrealized		Unrealized		Fair Value
			Cost			Gains			Losses				Cost		Gains		Losses
	U.S. Government securities		$	116,830		$	615		$	96	$	117,349	$	80,692	$	460	$	41	$	81,111

	States and political subdivisions		5,881			20			4		5,897		9,317		51		1		9,367

	Residential mortgage-backed securities — nonagency		109,344			5,780			93		115,031		110,900		6,766		19		117,647

	Residential mortgage-backed securities — agency		351,769			1,874			1,115		352,528		176,503		1,380		1,957		175,926

	Asset-backed securities		26,820			—			120		26,700		2,936		4		—		2,940

	Corporate securities		22,577			37			33		22,581		—		—		—		—

	Equity securities		—			—			—		—		51		6		—		57

	Total investment securities available-for-sale		$	633,221		$	8,326		$	1,461	$	640,086	$	380,399	$	8,667	$	2,018	$	387,048

Contractual Maturities of Available-for-Sale Securities	The amortized cost and estimated fair value of available-for-sale debt securities by contractual maturities are summarized in the table below (dollars in thousands):


			Distribution of Maturities (1)
	December 31, 2014		1 Year or			5-Jan			10-May		After 10		Total
			Less			Years			Years		Years
	Amortized Cost:
	U.S. Government securities		$	20,005		$	74,409		$	3,938	$	18,478	$	116,830

	States and political subdivisions		4,023			1,858			—		—		5,881

	Residential mortgage-backed securities — nonagency		—			—			—		109,344		109,344

	Residential mortgage-backed securities — agency		—			—			298,786		52,983		351,769

	Asset-backed securities		—			—			4,910		21,910		26,820

	Corporate securities		—			22,577			—		—		22,577

	Total debt securities		$	24,028		$	98,844		$	307,634	$	202,715	$	633,221


	Fair Value:
	U.S. Government securities		$	20,025		$	74,462		$	4,092	$	18,770	$	117,349

	States and political subdivisions		4,028			1,869			—		—		5,897

	Residential mortgage-backed securities — nonagency		—			—			—		115,031		115,031

	Residential mortgage-backed securities — agency		—			—			299,589		52,939		352,528

	Asset-backed securities		—			—			4,875		21,825		26,700

	Corporate securities		—			22,581			—		—		22,581

	Total debt securities		$	24,053		$	98,912		$	308,556	$	208,565	$	640,086




	(1) Actual cash flows may differ from contractual maturities as borrowers may prepay obligations without prepayment penalties.
Unrealized Losses on Investment Securities	The following table provides information regarding securities with unrealized losses (dollars in thousands):


			Less than 12 Months						12 Months or More				Total
			Fair Value			Unrealized Losses			Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
	Investment Securities Available-for-Sale
	December 31, 2014
	U.S. Government securities		$	37,649		$	96		$	—	$	—	$	37,649	$	96

	States and political subdivisions		3,041			4			—		—		3,041		4

	Residential mortgage-backed securities — nonagency		17,295			71			834		22		18,129		93

	Residential mortgage-backed securities — agency		118,514			480			39,180		635		157,694		1,115

	Asset-backed securities		21,700			120			—		—		21,700		120

	Corporate securities		15,530			33			—		—		15,530		33

	Total temporarily impaired securities		$	213,729		$	804		$	40,014	$	657	$	253,743	$	1,461


	December 31, 2013
	U.S. Government securities		$	16,340		$	41		$	—	$	—	$	16,340	$	41

	States and political subdivisions		699			1			—		—		699		1

	Residential mortgage-backed securities — nonagency		—			—			956		19		956		19

	Residential mortgage-backed securities — agency		107,536			1,868			4,411		89		111,947		1,957

	Total temporarily impaired securities		$	124,575		$	1,910		$	5,367	$	108	$	129,942	$	2,018

Schedule of Proceeds from Sales and Redemptions of Available for Sale Securities	Sales and calls of securities available-for-sale are summarized in the following table (dollars in thousands):


		31-Dec
		2014			2013			2012
	Proceeds from sales and calls	$	112,944		$	28,636		$	24,303


	Gross gains on securities available-for-sale	$	266		$	1,081		$	319

	Gross losses on securities available-for-sale	(20		)	—			(1		)

	Net realized gains on securities available-for-sale	$	246		$	1,081		$	318

Loans_Tables

Loans (Tables)	12 Months Ended
	Dec. 31, 2014
Receivables [Abstract]
Schedule of Loans	Loans are summarized as follows (dollars in thousands):


			31-Dec
	Loans		2014				2013
	Construction, land & land development		$	337,697			$	286,426

	Other commercial real estate		694,951				618,047

	Total commercial real estate		1,032,648				904,473

	Residential real estate		213,910				162,075

	Owner-occupied real estate		253,844				229,294

	Commercial, financial & agricultural		104,518				75,295

	Leases		19,959				—

	Consumer		9,650				9,832

	Total loans		1,634,529				1,380,969

	Allowance for loan and lease losses		(28,638		)		(34,065		)
	Total loans, net		$	1,605,891			$	1,346,904


	Organic loans are summarized as follows (dollars in thousands):


			31-Dec
	Organic Loans		2014				2013
	Construction, land & land development		$	310,987			$	251,043

	Other commercial real estate		609,478				550,474

	Total commercial real estate		920,465				801,517

	Residential real estate		91,448				66,835

	Owner-occupied real estate		188,933				174,858

	Commercial, financial & agricultural		90,930				71,006

	Leases		19,959				—

	Consumer		8,658				9,259

	Total organic loans (1)		1,320,393				1,123,475

	Allowance for loan and lease losses		(18,392		)		(16,656		)
	Total organic loans, net		$	1,302,001			$	1,106,819




	(1) Includes net deferred loan fees that totaled approximately $4.5 million and $2.6 million at December 31, 2014 and 2013, respectively.

	Purchased non-credit impaired loans, net of related discounts, are summarized as follows (dollars in thousands):


			31-Dec
	Purchased Non-Credit Impaired Loans		2014				2013
	Construction, land & land development		$	2,166			$	—

Other commercial real estate		26,793				—

Total commercial real estate		28,959				—

Residential real estate		43,669				—

Owner-occupied real estate		22,743				—

Commercial, financial & agricultural		11,635				—

Consumer		791				—

Total purchased non-credit impaired loans (1)		107,797				—

Allowance for loan and lease losses		—				—

Total purchased non-credit impaired loans, net		$	107,797			$	—




(1) Includes net discounts that totaled approximately $5.2 million at December 31, 2014.

Purchased credit impaired loans, net of related discounts, are summarized as follows (dollars in thousands):


		31-Dec
Purchased Credit Impaired Loans		2014				2013
Construction, land & land development		$	24,544			$	35,383

Other commercial real estate		58,680				67,573

Total commercial real estate		83,224				102,956

Residential real estate		78,793				95,240

Owner-occupied real estate		42,168				54,436

Commercial, financial & agricultural		1,953				4,289

Consumer		201				573

Total purchased credit impaired loans (1)		206,339				257,494

Allowance for loan and lease losses		(10,246		)		(17,409		)
Total purchased credit impaired loans, net		$	196,093			$	240,085




(1) Loans covered by loss share agreements with the FDIC were approximately $99.5 million and $257.5 million at December 31, 2014 and 2013, respectively.
Schedule of Purchased Credit Impaired Loans Rollforward	Changes in the carrying value of purchased credit impaired loans are presented in the following table (dollars in thousands):


			31-Dec
	Purchased Credit Impaired Loans		2014				2013
	Balance, beginning of year		$	240,085			$	419,235

	Accretion of fair value discounts		78,857				122,466

	Fair value of acquired loans		32,344				—

	Reductions in principal balances resulting from repayments, write-offs and foreclosures		(162,356		)		(339,685		)
	Change in the allowance for loan and lease losses on purchased credit impaired loans		7,163				38,069

	Balance, end of year		$	196,093			$	240,085

Schedule of Change in Accretable Discount	Changes in the value of the accretable discount are presented in the following table as of the dates indicated (dollars in thousands):


			31-Dec
	Changes in Accretable Discount		2014				2013			2012
	Balance, beginning of year		$	185,024			$	172,804		$	230,697

	Additions from acquisitions		7,351				—			—

	Accretion		(78,857		)		(122,466		)	(102,413		)
	Transfers to accretable discounts and exit events, net		6,543				134,686			44,520

	Balance, end of year		$	120,061			$	185,024		$	172,804

Allowance_for_Loan_and_Lease_L1

Allowance for Loan and Lease Losses (ALLL) (Tables)	12 Months Ended
	Dec. 31, 2014
Loans and Leases Receivable, Allowance [Abstract]
Schedule of Credit Losses Related to Financing Receivables, Current and Noncurrent	The following tables summarize the Company’s loan loss experience on organic loans for the periods indicated (dollars in thousands):


			31-Dec
	Organic Loans		2014				2013				2012
	Balance, beginning of period		$	16,656			$	14,660			$	10,207

	Loans charged-off		(1,552		)		(417		)		(669		)
	Recoveries of loans previously charged off		513				493				87

	Net (charge-offs) recoveries		(1,039		)		76				(582		)

	Provision for loan losses		2,775				1,920				5,035

	Balance, end of period		$	18,392			$	16,656			$	14,660


	The Company did not have any purchased non-credit impaired loans until its acquisition of Bank of Atlanta in 2014. There was no allowance for loan and lease losses on purchased non-credit impaired loans at December 31, 2014.

	The following tables summarize the Company’s loan loss experience on purchased credit impaired loans for the periods indicated (dollars in thousands):


			31-Dec
	Purchased Credit Impaired Loans		2014				2013				2012
	Balance, beginning of period		$	17,409			$	55,478			$	59,277

	Loans charged-off		(17,778		)		(35,989		)		(61,976		)
	Recoveries of loans previously charged off		13,384				32,515				7,540

	Net charge-offs		(4,394		)		(3,474		)		(54,436		)
	(Recovery of) provision for loan losses		(2,769		)		(34,595		)		50,637

	Amount attributable to FDIC loss share agreements		2,890				30,188				(40,556		)

	Total provision for (recovery of) loan losses charged to operations		121				(4,407		)		10,081

	(Recovery of) provision for loan losses recorded through the FDIC loss share receivable		(2,890		)		(30,188		)		40,556

	Balance, end of period		$	10,246			$	17,409			$	55,478

Allowance for Credit Losses on Financing Receivables	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
	December 31, 2014
	Beginning balance		$	11,226			$	2,481			$	1,950			$	1,680			$	72			$	17,409

	Charge-offs		(12,302		)		(1,228		)		(2,775		)		(1,409		)		(64		)		(17,778		)
	Recoveries		8,682				1,491				1,429				1,714				68				13,384

	Recovery of loan losses before amount attributable to FDIC loss share agreements		(2,145		)		(446		)		1,312				(1,418		)		(72		)		(2,769		)

	Amount attributable to FDIC loss share agreements		2,239				466				(1,370		)		1,480				75				2,890

	Total provision for loan losses charged to operations		94				20				(58		)		62				3				121

	Provision for loan losses recorded through the FDIC loss share receivable		(2,239		)		(466		)		1,370				(1,480		)		(75		)		(2,890		)

	Ending balance		$	5,461			$	2,298			$	1,916			$	567			$	4			$	10,246


	December 31, 2013
	Beginning balance		$	27,152			$	21,545			$	4,021			$	2,607			$	153			$	55,478

	Charge-offs		(25,554		)		(2,697		)		(4,619		)		(2,856		)		(263		)		(35,989		)
	Recoveries		18,661				5,500				3,637				3,494				1,223				32,515

	Recovery of loan losses before benefit attributable to FDIC loss share agreements		(9,033		)		(21,867		)		(1,089		)		(1,565		)		(1,041		)		(34,595		)
	Amount attributable to FDIC loss share agreements		7,882				19,083				950				1,365				908				30,188

	Total recovery of loan losses charged to operations		(1,151		)		(2,784		)		(139		)		(200		)		(133		)		(4,407		)
	Provision for loan losses recorded through the FDIC loss share receivable		(7,882		)		(19,083		)		(950		)		(1,365		)		(908		)		(30,188		)
	Ending balance		$	11,226			$	2,481			$	1,950			$	1,680			$	72			$	17,409


	December 31, 2012
	Beginning balance		$	37,332			$	14,372			$	4,597			$	2,976			$	—			$	59,277

	Charge-offs		(50,259		)		(4,544		)		(5,038		)		(2,123		)		(12		)		(61,976		)
	Recoveries		6,999				169				357				15				—				7,540

	Provision for loan losses before amount attributable to FDIC loss share agreements		33,080				11,548				4,105				1,739				165				50,637

	Amount attributable to FDIC loss share agreements		(26,494		)		(9,249		)		(3,288		)		(1,393		)		(132		)		(40,556		)
	Total provision for loan losses charged to operations		6,586				2,299				817				346				33				10,081

	Provision for loan losses recorded through the FDIC loss share receivable		26,494				9,249				3,288				1,393				132				40,556

	Ending balance		$	27,152			$	21,545			$	4,021			$	2,607			$	153			$	55,478





	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
	31-Dec-14
	Commercial real estate		$	1,830			$	3,631			$	5,461			$	42,721			$	40,503			$	83,224

	Residential real estate		1,094				1,204				2,298				3,718				75,075				78,793

Owner-occupied real estate		1,462				454				1,916				19,736				22,432				42,168

Commercial, financial & agricultural		—				567				567				353				1,600				1,953

Consumer		—				4				4				31				170				201

Total purchased credit impaired loans		$	4,386			$	5,860			$	10,246			$	66,559			$	139,780			$	206,339


31-Dec-13
Commercial real estate		$	6,018			$	5,208			$	11,226			$	49,713			$	53,243			$	102,956

Residential real estate		966				1,515				2,481				2,132				93,108				95,240

Owner-occupied real estate		1,077				873				1,950				15,449				38,987				54,436

Commercial, financial & agricultural		36				1,644				1,680				16				4,273				4,289

Consumer		72				—				72				265				308				573

Total purchased credit impaired loans		$	8,169			$	9,240			$	17,409			$	67,575			$	189,919			$	257,494

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
December 31, 2014
Beginning balance		$	11,163			$	1,015			$	2,535			$	1,799			$	—			$	144			$	16,656

Charge-offs		(1,267		)		(1		)		—				(256		)		—				(28		)		(1,552		)

Recoveries		292				26				5				186				—				4				513

Provision		2,946				150				(612		)		41				262				(12		)		2,775

Ending balance		$	13,134			$	1,190			$	1,928			$	1,770			$	262			$	108			$	18,392


December 31, 2013
Beginning balance		$	9,495			$	1,050			$	2,486			$	1,497			$	—			$	132			$	14,660

Charge-offs		(190		)		(38		)		(49		)		(114		)		—				(26		)		(417		)

Recoveries		439				20				5				24				—				5				493

Provision		1,419				(17		)		93				392				—				33				1,920

Ending balance		$	11,163			$	1,015			$	2,535			$	1,799			$	—			$	144			$	16,656


December 31, 2012
Beginning balance		$	6,423			$	561			$	2,304			$	765			$	—			$	154			$	10,207

Charge-offs		(510		)		(75		)		—				(75		)		—				(9		)		(669		)

Recoveries		74				2				—				6				—				5				87

Provision		3,508				562				182				801				—				(18		)		5,035

Ending balance		$	9,495			$	1,050			$	2,486			$	1,497			$	—			$	132			$	14,660

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
31-Dec-14
Commercial real estate		$	330			$	12,804			$	13,134			$	4,089			$	916,376			$	920,465

Residential real estate		58				1,132				1,190				1,263				90,185				91,448

Owner-occupied real estate		22				1,906				1,928				44				188,889				188,933

Commercial, financial & agricultural		66				1,704				1,770				131				90,799				90,930

Leases		—				262				262				—				19,959				19,959

Consumer		10				98				108				19				8,639				8,658

Total organic loans		$	486			$	17,906			$	18,392			$	5,546			$	1,314,847			$	1,320,393


31-Dec-13
Commercial real estate		$	98			$	11,065			$	11,163			$	807			$	800,710			$	801,517

Residential real estate		38				977				1,015				1,198				65,637				66,835

Owner-occupied real estate		42				2,493				2,535				84				174,774				174,858

Commercial, financial & agricultural		117				1,682				1,799				234				70,772				71,006

Consumer		8				136				144				15				9,244				9,259

Total organic loans		$	303			$	16,353			$	16,656			$	2,338			$	1,121,137			$	1,123,475

Impaired Financing Receivables	Impaired loans, segregated by class of loans, are presented in the following table (dollars in thousands):


			December 31, 2014												December 31, 2013
	Impaired Loans:		Unpaid Principal Balance				Recorded Investment				Related Allowance				Unpaid Principal Balance				Recorded Investment				Related Allowance
	Organic and Purchased Non-Credit Impaired
	With no related allowance recorded:
	Construction, land & land development		$	4,616			$	3,426			$	—			$	501			$	269			$	—

	Other commercial real estate		—				—				—				523				350				—

	Total commercial real estate		4,616				3,426				—				1,024				619				—

	Residential real estate		875				875				—				869				869				—

	Owner-occupied real estate		—				—				—				—				—				—

	Commercial, financial & agricultural		—				—				—				—				—				—

	Consumer		—				—				—				—				—				—

	Subtotal		5,491				4,301				—				1,893				1,488				—


	With related allowance recorded:
	Construction, land & land development		3				3				1				333				52				26

	Other commercial real estate		834				659				329				179				136				72

	Total commercial real estate		837				662				330				512				188				98

	Residential real estate		432				399				58				316				256				38

	Owner-occupied real estate		44				44				22				89				84				42

	Commercial, financial & agricultural		227				227				66				234				234				117

	Consumer		21				20				10				17				15				8

	Subtotal		1,561				1,352				486				1,168				777				303

	Total impaired loans		$	7,052			$	5,653			$	486			$	3,061			$	2,265			$	303


	The following table presents information related to the average recorded investment and interest income recognized on impaired loans, for the periods indicated (dollars in thousands):


			31-Dec-14								31-Dec-13								31-Dec-12
	Impaired Loans:		Average Recorded Investment				Interest Income Recognized (2)				Average Recorded Investment				Interest Income Recognized (2)				Average Recorded Investment (1)				Interest Income Recognized (2)
	Organic and Purchased Non-Credit Impaired		(1)								(1)
	Construction, land & land development		$	669			$	86			$	324			$	—			$	350			$	—

	Other commercial real estate		515				27				1,309				5				3,202				55

	Total commercial real estate		1,184				113				1,633				5				3,552				55

	Residential real estate		1,213				8				1,295				3				1,301				23

	Owner-occupied real estate		103				—				171				—				112				1

	Commercial, financial & agricultural		216				3				341				—				197				—

	Consumer		20				3				38				—				43				1

Total impaired loans		$	2,736			$	127			$	3,478			$	8			$	5,205			$	80




(1) The average recorded investment for troubled debt restructurings was $1.3 million, $1.0 million and $2.4 million for the years ended December 31, 2014, 2013 and 2012, respectively.
(2) The total interest income recognized on troubled debt restructurings was $41,000, $5,000 and $70,000 for the years ended December 31, 2014, 2013, 2012, respectively.

Nonaccrual Loans	The following table presents the recorded investment in nonaccrual loans by loan class for the periods indicated (dollars in thousands):


			31-Dec
	Nonaccrual Loans (1)		2014				2013
	Construction, land & land development		$	3,429			$	321

	Other commercial real estate		659				486

	Total commercial real estate		4,088				807

	Residential real estate		1,274				1,125

	Owner-occupied real estate		44				84

	Commercial, financial & agricultural		227				234

	Consumer		20				15

	Total nonaccrual loans		$	5,653			$	2,265




	(1) Includes both organic and purchased nonaccrual loans at December 31, 2014. Purchased non-credit impaired nonaccrual loans totaled $107,000 at December 31, 2014. There were no purchased non-credit impaired loans at December 31, 2013.
Past Due Financing Receivables	The following table presents an analysis of past due organic loans, by class of loans, for the periods indicated (dollars in thousands):


	Organic Loans		30 - 89				90 Days or				Total				Current				Total Loans				Loans > 90
			Days				greater				Past Due												Days and
			Past Due				Past Due																Accruing
	December 31, 2014
	Construction, land & land development		$	—			$	—			$	—			$	310,987			$	310,987			$	—

	Other commercial real estate		24				385				409				609,069				609,478				—

	Total commercial real estate		24				385				409				920,056				920,465				—

	Residential real estate		527				893				1,420				90,028				91,448				—

	Owner-occupied real estate		287				44				331				188,602				188,933				—

	Commercial, financial & agricultural		—				108				108				90,822				90,930				—

	Leases		—				—				—				19,959				19,959				—

	Consumer		25				12				37				8,621				8,658				—

	Total organic loans		$	863			$	1,442			$	2,305			$	1,318,088			$	1,320,393			$	—


	December 31, 2013
	Construction, land & land development		$	57			$	275			$	332			$	250,711			$	251,043			$	—

	Other commercial real estate		—				—				—				550,474				550,474				—

	Total commercial real estate		57				275				332				801,185				801,517				—

	Residential real estate		207				62				269				66,566				66,835				—

	Owner-occupied real estate		44				83				127				174,731				174,858				—

	Commercial, financial & agricultural		65				116				181				70,825				71,006				—

	Consumer		85				6				91				9,168				9,259				—

	Total organic loans		$	458			$	542			$	1,000			$	1,122,475			$	1,123,475			$	—









	The following table presents an analysis of past due purchased non-credit impaired loans, by class of loans, for the period presented (dollars in thousands):


	Purchased Non-Credit Impaired Loans (1)		30 - 89				90 Days or				Total				Current				Total Loans				Loans > 90
			Days				greater				Past Due												Days and
			Past Due				Past Due																Accruing
	December 31, 2014
	Construction, land & land development		$	—			$	—			$	—			$	2,166			$	2,166			$	—

	Other commercial real estate		—				—				—				26,793				26,793				—

	Total commercial real estate		—				—				—				28,959				28,959				—

Residential real estate		490				11				501				43,168				43,669				—

Owner-occupied real estate		—				—				—				22,743				22,743				—

Commercial, financial & agricultural		—				—				—				11,635				11,635				—

Consumer		—				—				—				791				791				—

Total purchased non-credit impaired loans		$	490			$	11			$	501			$	107,296			$	107,797			$	—




(1) There were no purchased non-credit impaired loans at December 31, 2013.

The following table presents an analysis of past due purchased credit impaired loans, by class of loans, for the periods presented (dollars in thousands):


Purchased Credit Impaired Loans		30 - 89				90 Days or				Total				Current				Total Loans
		Days				greater				Past Due
		Past Due				Past Due
December 31, 2014
Construction, land & land development		$	1,235			$	8,797			$	10,032			$	14,512			$	24,544

Other commercial real estate		1,443				4,957				6,400				52,280				58,680

Total commercial real estate		2,678				13,754				16,432				66,792				83,224

Residential real estate		3,525				6,577				10,102				68,691				78,793

Owner-occupied real estate		1,113				4,148				5,261				36,907				42,168

Commercial, financial & agricultural		—				340				340				1,613				1,953

Consumer		—				101				101				100				201

Total purchased credit impaired loans		$	7,316			$	24,920			$	32,236			$	174,103			$	206,339


December 31, 2013
Construction, land & land development		$	1,134			$	13,454			$	14,588			$	20,795			$	35,383

Other commercial real estate		3,346				8,541				11,887				55,686				67,573

Total commercial real estate		4,480				21,995				26,475				76,481				102,956

Residential real estate		5,548				7,541				13,089				82,151				95,240

Owner-occupied real estate		1,372				9,634				11,006				43,430				54,436

Commercial, financial & agricultural		139				587				726				3,563				4,289

Consumer		1				283				284				289				573

Total purchased credit impaired loans		$	11,540			$	40,040			$	51,580			$	205,914			$	257,494

Financing Receivable Credit Quality Indicators	The following table presents the risk grades of the organic loan portfolio, by class of loans, at the periods presented (dollars in thousands):


	Organic Loans		Pass				Watch				OAEM				Substandard				Doubtful				Total
	December 31, 2014
	Construction, land & land development		$	272,847			$	34,702			$	—			$	3,438			$	—			$	310,987

	Other commercial real estate		572,098				35,434				905				1,041				—				609,478

	Total commercial real estate		844,945				70,136				905				4,479				—				920,465

	Residential real estate		69,828				19,656				287				1,677				—				91,448

	Owner-occupied real estate		162,929				17,999				1,157				6,848				—				188,933

	Commercial, financial & agricultural		87,819				1,754				798				559				—				90,930

	Leases		19,959				—				—				—				—				19,959

	Consumer		8,302				27				9				320				—				8,658

	Total organic loans		$	1,193,782			$	109,572			$	3,156			$	13,883			$	—			$	1,320,393


	December 31, 2013
	Construction, land & land development		$	174,700			$	71,225			$	4,780			$	338			$	—			$	251,043

	Other commercial real estate		528,649				21,148				191				486				—				550,474

	Total commercial real estate		703,349				92,373				4,971				824				—				801,517

	Residential real estate		55,447				9,712				437				1,239				—				66,835

	Owner-occupied real estate		147,510				24,017				2,540				791				—				174,858

	Commercial, financial & agricultural		68,866				1,532				365				243				—				71,006

	Consumer		9,121				76				—				55				7				9,259

	Total organic loans		$	984,293			$	127,710			$	8,313			$	3,152			$	7			$	1,123,475


	The following table presents the risk grades of the purchased non-credit impaired loan portfolio, by class of loans, at the period presented (dollars in thousands):


	Purchased Non-Credit Impaired Loans (1)		Pass				Watch				OAEM				Substandard				Doubtful				Total
	December 31, 2014
	Construction, land & land development		$	2,166			$	—			$	—			$	—			$	—			$	2,166

	Other commercial real estate		24,257				2,536				—				—				—				26,793

	Total commercial real estate		26,423				2,536				—				—				—				28,959

	Residential real estate		41,868				1,694				—				107				—				43,669

	Owner-occupied real estate		21,862				881				—				—				—				22,743

	Commercial, financial & agricultural		9,800				1,475				264				96				—				11,635

	Consumer		773				18				—				—				—				791

	Total purchased non-credit impaired loans		$	100,726			$	6,604			$	264			$	203			$	—			$	107,797




(1) There were no purchased non-credit impaired loans at December 31, 2013.

The following table presents the risk grades of the purchased credit impaired loan portfolio, by class of loans, at the periods presented (dollars in thousands):


Purchased Credit Impaired Loans		Pass				Watch				OAEM				Substandard				Doubtful				Total
December 31, 2014
Construction, land & land development		$	5,833			$	2,228			$	195			$	14,485			$	1,803			$	24,544

Other commercial real estate		5,893				24,139				8,397				18,383				1,868				58,680

Total commercial real estate		11,726				26,367				8,592				32,868				3,671				83,224

Residential real estate		35,829				11,092				8,649				17,698				5,525				78,793

Owner-occupied real estate		15,234				12,786				3,694				9,405				1,049				42,168

Commercial, financial & agricultural		1,048				142				123				308				332				1,953

Consumer		32				24				—				25				120				201

Total purchased credit impaired loans		$	63,869			$	50,411			$	21,058			$	60,304			$	10,697			$	206,339


December 31, 2013
Construction, land & land development		$	2,833			$	7,319			$	969			$	23,717			$	545			$	35,383

Other commercial real estate		7,563				14,189				15,027				29,315				1,479				67,573

Total commercial real estate		10,396				21,508				15,996				53,032				2,024				102,956

Residential real estate		42,507				16,221				2,473				33,452				587				95,240

Owner-occupied real estate		15,491				9,780				6,702				22,463				—				54,436

Commercial, financial & agricultural		845				652				39				2,622				131				4,289

Consumer		222				47				1				300				3				573

Total purchased credit impaired loans		$	69,461			$	48,208			$	25,211			$	111,869			$	2,745			$	257,494

Troubled Debt Restructurings on Financing Receivables	The following table provides information on organic troubled debt restructured loans that were modified during the periods presented (dollars in thousands):


			31-Dec-14											31-Dec-12
	Organic TDR Additions (1) (2)		Number of Contracts			Pre-Modification				Post-Modification				Number of Contracts			Pre-Modification				Post-Modification
						Recorded Investment				Recorded Investment							Recorded Investment				Recorded Investment
	Construction, land & land development		1			$	3,427			$	3,427			—			$	—			$	—

	Other commercial real estate		—			—				—				1			1,182				1,182

	Total commercial real estate		1			3,427				3,427				1			1,182				1,182

	Residential real estate		—			—				—				1			900				900

	Total modifications		1			$	3,427			$	3,427			2			$	2,082			$	2,082




	(1) There were no organic troubled debt restructured loans modified during the year ended December 31, 2013.
	(2) The pre-modification and post-modification recorded investments represent amounts at the date of loan modifications. Since the modifications on these loans have been only interest rate concessions and payment term extensions, not principal reductions, the pre-modification and post-modification recorded investment amounts are the same.

Other_Real_Estate_Owned_Tables

Other Real Estate Owned (Tables)	12 Months Ended
	Dec. 31, 2014
Real Estate [Abstract]
Other Real Estate Owned Rollforward	The following is a summary of transactions in other real estate owned for the periods presented (dollars in thousands):


		31-Dec
	Other real estate owned	2014			2013			2012
	Balance, beginning of period	$	965		$	1,115		$	1,210

	Other real estate acquired through foreclosure of loans receivable	459			1,075			738

	Former bank premises real estate owned	—			796			—

	Other real estate sold	(924		)	(1,497		)	(807		)
	Write down of other real estate	(426		)	(524		)	(26		)
	Balance, end of period	$	74		$	965		$	1,115


	Acquired other real estate owned
	Balance, beginning of period	$	46,222		$	45,062		$	84,496

	Other real estate acquired through mergers and acquisitions	1,620			—			—

	Other real estate acquired through foreclosure of loans receivable	29,859			77,243			40,780

	Other real estate sold	(56,460		)	(55,023		)	(50,292		)
	Write down of other real estate	(12,747		)	(21,060		)	(29,922		)
	Balance, end of period (1)	$	8,494		$	46,222		$	45,062


	Total other real estate owned	$	8,568		$	47,187		$	46,177




	(1) Acquired OREO covered by loss share agreements with the FDIC was approximately $3.3 million, $46.2 million, and $45.1 million at December 31, 2014, 2013, and 2012, respectively.

Premises_and_Equipment_Tables

Premises and Equipment (Tables)	12 Months Ended
	Dec. 31, 2014
Property, Plant and Equipment, and Leases [Abstract]
Property, Plant and Equipment	Premises and equipment are summarized as follows (dollars in thousands):


		31-Dec
		2014			2013
	Land	$	9,057		$	9,057

	Buildings and improvements	23,010			20,122

	Furniture, fixtures, and equipment	13,314			11,986

	Construction in progress	856			996

	Premises and equipment, gross	46,237			42,161

	Accumulated depreciation	(10,951		)	(8,843		)
	Premises and equipment, net	$	35,286		$	33,318

Schedule of Future Minimum Rental Payments for Operating Leases	Future minimum lease commitments under all noncancelable operating leases with terms of one year or more, excluding any renewal options, are as follows (dollars in thousands):


	Years Ended December 31		Future Lease Commitments
	2015		$	3,474

	2016		3,239

	2017		2,932

	2018		2,835

	2019		2,398

	Thereafter		9,237

	Total (1)		$	24,115




	(1) The total future minimum lease commitments have not been reduced by minimum sublease rentals of $4.4 million due in the future from noncancelable subleases.

Goodwill_and_Other_Intangible_1

Goodwill and Other Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill and Identifiable Intangible Assets	Changes to the carrying amounts of goodwill and identifiable intangible assets are presented in the table below (dollars in thousands):


		31-Dec
		2014			2013
	Goodwill
	Balance, beginning of year	$	10,381		$	10,381

	Bank of Atlanta acquisition	225			—

	Balance, end of year	10,606			10,381

	Core deposit and other intangibles
	Balance, beginning of year	6,297			6,297

	Bank of Atlanta acquisition	1,460			—

	Accumulated amortization	(5,005		)	(4,311		)
	Balance, end of year	2,752			1,986

	Total goodwill and other intangibles	$	13,358		$	12,367

Schedule of Expected Amortization Expense	Amortization expense for core deposit and other intangibles for the next five years is expected to be as follows (dollars in thousands):


	Years Ended December 31	Amortization Expense
	2015	$	829

	2016	751

	2017	661

	2018	292

	2019	219

	Total amortization expense	$	2,752

SBA_Servicing_Rights_Tables

SBA Servicing Rights (Tables)	12 Months Ended
	Dec. 31, 2014
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 period presented (dollars in thousands):


	SBA Servicing Rights	31-Dec-14
	Balance, beginning of period	$	—

	Bank of Atlanta acquisition	1,509

	Additions	45

	Fair value adjustments	(38		)
	Balance, end of period	$	1,516

Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques	A summary of the key characteristics, inputs and economic assumptions used to estimate the fair value of the Company's SBA servicing rights asset are as follows (dollars in thousands):


	SBA Servicing Rights	31-Dec-14
	Fair value	$	1,516

	Weighted average discount rate	11.3			%

	Prepayment speed	6.7			%

	Weighted average remaining life (years)	7.8

	The following tables provide information describing the unobservable inputs used in Level 3 fair value measurements at the dates indicated (dollars in thousands):


	December 31, 2014	Fair Value				Valuation Technique	Unobservable Inputs	Range (Weighted Average)
	SBA servicing rights	$	1,516			Discounted cash flows	Discount rate	8% - 14% (11%)
							Prepayment speed	4% - 9% (7%)
	Impaired loans - collateral dependent	$	5,167			Third party appraisal	Management discount for property type and recent market volatility	0% - 50% (9%)

	Other real estate owned	$	80			Third party appraisal	Management discount for property type and recent market volatility	0% - 0% (0%)

	Acquired other real estate owned	$	10,859			Third party appraisal	Management discount for property type and recent market volatility	0% - 76% (45%)



	December 31, 2013	Fair Value				Valuation Technique	Unobservable Inputs	Range (Weighted Average)
	Impaired loans - collateral dependent	$	1,962			Third party appraisal	Management discount for property type and recent market volatility	0% - 50% (13%)

	Other real estate owned	$	980			Third party appraisal	Management discount for property type and recent market volatility	0% - 31% (6%)

	Acquired other real estate owned	$	55,982			Third party appraisal	Management discount for property type and recent market volatility	0% - 84% (39%)

FDIC_Receivable_for_Loss_Share1

FDIC Receivable for Loss Share Agreements (Tables)	12 Months Ended
	Dec. 31, 2014
FDIC Receivable for Loss Sharing Agreements [Abstract]
FDIC Receivable for Loss Share Agreements	The following table documents changes in the carrying value of the FDIC receivable for loss share agreements relating to covered purchased credit impaired loans and covered acquired other real estate owned for the periods indicated (dollars in thousands):


		31-Dec
	FDIC receivable for loss share agreements	2014			2013			2012
	Balance, beginning of period	$	107,843		$	356,866		$	529,440

	Provision for loan losses attributable to FDIC for loss share agreements	(2,890		)	(30,188		)	40,556

	Wires received	(45,251		)	(125,960		)	(222,180		)
	Net charge-offs, write-downs and other losses	(28,169		)	(19,564		)	21,377

	Amortization	(15,785		)	(87,884		)	(32,569		)
	External expenses qualifying under loss share agreements	6,572			14,573			20,242

	Balance, end of period	$	22,320		$	107,843		$	356,866


	At December 31, 2014, we recorded a clawback liability of $5.7 million to the FDIC related to the First Security National Bank, NorthWest Bank & Trust, United Americas Bank, Community Capital Bank and Piedmont Community Bank acquisitions.

Deposits_Tables

Deposits (Tables)	12 Months Ended
	Dec. 31, 2014
Banking and Thrift [Abstract]
Schedule of Deposits	Deposits are summarized as follows (dollars in thousands):


		31-Dec
		2014		2013
	Noninterest-bearing demand deposits	$	577,295	$	468,138

	Interest-bearing transaction accounts	495,966		367,983

	Savings and money market deposits	954,626		892,136

	Time deposits less than $250,000	247,757		267,308

	Time deposits $250,000 or greater	18,946		26,130

	Brokered and wholesale time deposits	97,092		106,630

	Total deposits	$	2,391,682	$	2,128,325

Schedule of Maturities of Deposits	The scheduled maturities of time, brokered, and wholesale deposits were as follows (dollars in thousands):


		31-Dec-14
	2015	$	239,420

	2016	95,593

	2017	20,302

	2018	4,906

	2019	3,448

	Thereafter	126

	Total time, brokered, and wholesale deposits	$	363,795

Schedule of Brokered Deposited and Weighted Average Rate	The scheduled maturities of brokered deposits and their weighted average costs were as follows (dollars in thousands):


		December 31, 2014
		Balance		Average Cost
	2015	$	17,998	0.81	%

	2016	26,541		1.05	%

	2017	4,050		1.28	%

	2018	2,000		1.58	%

	Total brokered deposits	$	50,589	1	%

Derivative_Instruments_and_Hed1

Derivative Instruments and Hedging Activities (Tables)	12 Months Ended
	Dec. 31, 2014
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 derivative financial instruments designated as hedging instruments as well as their classifications on the consolidated statements of financial condition at the dates presented (dollars in thousands):


		Derivatives Designated as Hedging Instruments
		Fair Value				Fair Value
	Interest Rate Products	December 31, 2014				December 31, 2013
	Asset Derivatives
	Other Assets	$	3,879			$	8,087


	Liability Derivatives
	Other Liabilities	$	1,666			$	764

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):


				31-Dec
	Interest Rate Products	Location		2014				2013				2012
	Amount of (loss) gain recognized in income on derivatives	Noninterest income		$	(3,031	)		$	4,568			$	(1,546	)

	Amount of gain (loss) recognized in income on hedged items	Noninterest income		2,422				(3,728		)		1,381

	Total net (loss) gain recognized in income on fair value hedge ineffectiveness			$	(609	)		$	840			$	(165	)

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):


				31-Dec
	Interest Rate Products	Location		2014				2013				2012
	Amount of (loss) gain recognized in income on derivatives (effective portion)	OCI		$	(2,036	)		$	1,264			$	—

	Amount of loss reclassified from AOCI into income (effective portion)	Interest expense		259				40				—

	Total (loss) gain recognized in consolidated statements of comprehensive income			$	(1,777	)		$	1,304			$	—

Schedule of Effects of Offsetting Derivative Financial Instruments	Certain financial instruments, including derivatives (interest rate caps and swaps), may be eligible for offset in the consolidated balance sheet and/or subject to master netting arrangements or similar agreements. The Company is party to master netting arrangements with its financial institution counterparties; 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 on the consolidated statements of financial condition at the periods 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
	December 31, 2014
	Offsetting Derivative Assets
	Derivatives	$	3,879			$	—			$	3,879			$	(1,666	)	$	(2,654	)	$	(441	)

	Offsetting Derivative Liabilities
	Derivatives	$	1,666			$	—			$	1,666			$	(1,666	)	$	—		$	—


	December 31, 2013
	Offsetting Derivative Assets
	Derivatives	$	8,087			$	—			$	8,087			$	(764	)	$	(6,560	)	$	763

	Offsetting Derivative Liabilities
	Derivatives	$	764			$	—			$	764			$	(764	)	$	—		$	—

Stock_Warrants_Tables

Stock Warrants (Tables)	12 Months Ended
	Dec. 31, 2014
Stockholders' Equity Note [Abstract]
Schedule of Stockholders' Equity Note, Warrants or Rights	The following table represents the activity related to stock warrants:


		31-Dec
		2014				2013
		Number of Warrants		Weighted Average Exercise Price		Number of Warrants		Weighted Average Exercise Price
	Outstanding warrants at beginning of year	2,623,824		$	9.84	2,640,283		$	9.84

	Issued	—		—		—		—

	Exercised	(42,633	)	6.24		(15,000	)	10

	Repurchased	—		—		(1,459	)	11.21

	Outstanding warrants at end of year	2,581,191		$	9.9	2,623,824		$	9.84

ShareBased_Compensation_Tables

Share-Based Compensation (Tables)	12 Months Ended
Share-Based Compensation (Tables)	Dec. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions	The significant assumptions made and resulting grant-date fair values in utilizing the option-pricing model are noted in the table below:


		2013
	Expected volatility	28.6		%
	Expected volatility	28.6		%
	Expected dividend yield	—		%
	Expected dividend yield	—		%
	Risk-free interest rate	0.5		%
	Risk-free interest rate	0.5		%
	Expected term (in years)	2.5
	Expected term (in years)	2.5
	Weighted-average grant-date fair value	$	3.48
	Weighted-average grant-date fair value	$	3.48
Schedule of Share-based Compensation, Stock Options, Activity	The following table represents a summary of the activity related to stock options:


			December 31, 2014
			Number of Options		Weighted Average Exercise Price ($)		Weighted Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value ($000)
	Outstanding options, end of year (1)		28,918		$	14.37	6.65	$	162
	Outstanding options, end of year (1)		28,918		$	14.37	6.65	$	162
	Fully vested and exercisable options, end of year		28,918		$	14.37	6.65	$	162
	Fully vested and exercisable options, end of year		28,918		$	14.37	6.65	$	162



	(1) There were no stock option grants, forfeitures or exercises during 2014.
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity	The following table represents a summary of the unvested restricted stock award activity:


		December 31, 2014
		Shares		Weighted Average Grant Date Fair Value
	Balance, beginning of year	431,269		$	15.81
	Balance, beginning of year	431,269		$	15.81
	Granted	153,232		16.6
	Granted	153,232		16.6
	Forfeited	(16,250	)	14.86
	Forfeited	(16,250	)	14.86
	Earned and issued	(93,205	)	14.07
	Earned and issued	(93,205	)	14.07
	Balance, end of year	475,046		$	16.43
	Balance, end of year	475,046		$	16.43

Regulatory_Matters_Tables

Regulatory Matters (Tables)	12 Months Ended
	Dec. 31, 2014
Banking and Thrift [Abstract]
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations	The Company's and State Bank's actual ratios at the periods indicated are as follows (dollars in thousands):


		Actual				For Capital Adequacy Purposes				To Be Well Capitalized Under Prompt Corrective Action Provisions
		Amount		Ratio		Amount		Ratio		Amount		Ratio
	December 31, 2014
	Total Capital to Risk-Weighted Assets
	Consolidated	$	470,869	24.37	%	$	154,543	8	%	$	193,178	10	%

	State Bank	$	383,957	19.88	%	$	154,511	8	%	$	193,139	10	%

	Tier I Capital to Risk-Weighted Assets
	Consolidated	$	446,666	23.12	%	$	77,271	4	%	$	115,907	6	%

	State Bank	$	359,759	18.63	%	$	77,256	4	%	$	115,883	6	%

	Tier I Capital to Average Assets
	Consolidated	$	446,666	15.9	%	$	112,334	4	%	$	—	N/A

	State Bank	$	359,759	12.84	%	$	112,112	4	%	$	140,139	5	%


		Actual				For Capital Adequacy Purposes				To Be Well Capitalized Under Prompt Corrective Action Provisions
		Amount		Ratio		Amount		Ratio		Amount		Ratio
	December 31, 2013
	Total Capital to Risk-Weighted Assets
	Consolidated	$	438,670	29.11	%	$	120,549	8	%	$	150,686	10	%

	State Bank	$	381,230	25.32	%	$	120,463	8	%	$	150,578	10	%

	Tier I Capital to Risk-Weighted Assets
	Consolidated	$	419,646	27.85	%	$	60,274	4	%	$	90,412	6	%

	State Bank	$	362,219	24.06	%	$	60,231	4	%	$	90,347	6	%

	Tier I Capital to Average Assets
	Consolidated	$	419,646	16.55	%	$	101,429	4	%	$	—	N/A

	State Bank	$	362,219	14.28	%	$	101,438	4	%	$	126,797	5	%

Commitments_and_Contingent_Lia1

Commitments and Contingent Liabilities (Tables)	12 Months Ended
	Dec. 31, 2014
Commitments and Contingencies Disclosure [Abstract]
Summary of Commitments	A summary of the Company's commitments is as follows (dollars in thousands):


		31-Dec
		2014		2013
	Commitments to extend credit:
	Fixed	$	21,276	$	9,848

	Variable	405,956		290,079

	Financial standby letters of credit:
	Fixed	846		379

	Variable	4,350		1,274

	Total	$	432,428	$	301,580

Fair_Value_Tables

Fair Value (Tables)	12 Months Ended
	Dec. 31, 2014
Fair Value Disclosures [Abstract]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis	The following tables present the 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):


	December 31, 2014		Quoted Market				Significant				Significant				Total
			Prices in Active				Other				Unobservable
			Markets				Observable				Inputs
			(Level 1)				Inputs				(Level 3)
							(Level 2)
	Assets:
	U.S. Government securities		$	—			$	117,349			$	—			$	117,349

	States and political subdivisions		—				5,897				—				5,897

	Residential mortgage-backed securities — nonagency		—				115,031				—				115,031

	Residential mortgage-backed securities — agency		—				352,528				—				352,528

	Asset-backed securities		—				26,700				—				26,700

	Corporate securities		—				22,581				—				22,581

	Derivative financial instruments		—				3,879				—				3,879

	SBA servicing rights		—				—				1,516				1,516

	Total recurring assets at fair value		$	—			$	643,965			$	1,516			$	645,481


	Liabilities:
	Derivative financial instruments		$	—			$	1,666			$	—			$	1,666

	Total recurring liabilities at fair value		$	—			$	1,666			$	—			$	1,666




	December 31, 2013		Quoted Market				Significant				Significant				Total
			Prices in Active				Other				Unobservable
			Markets				Observable				Inputs
			(Level 1)				Inputs				(Level 3)
							(Level 2)
	Assets:
	U.S. Government securities		$	761			$	80,350			$	—			$	81,111

	States and political subdivisions		—				9,367				—				9,367

	Residential mortgage-backed securities — nonagency		—				117,647				—				117,647

	Residential mortgage-backed securities — agency		—				175,926				—				175,926

	Asset-backed securities		—				2,940				—				2,940

	Equity securities		57				—				—				57

	Derivative financial instruments		—				8,087				—				8,087

	Total recurring assets at fair value		$	818			$	394,317			$	—			$	395,135


	Liabilities:
	Derivative financial instruments		$	—			$	764			$	—			$	764

	Total recurring liabilities at fair value		$	—			$	764			$	—			$	764

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				Significant				Significant				Total
		Prices in Active				Other				Unobservable
		Markets				Observable				Inputs
		(Level 1)				Inputs				(Level 3)
						(Level 2)
	December 31, 2014
	Impaired loans	$	—			$	—			$	5,167			$	5,167

	Mortgage loans held for sale	—				3,174				—				3,174

	Total nonrecurring assets at fair value	$	—			$	3,174			$	5,167			$	8,341


	December 31, 2013
	Impaired loans	$	—			$	—			$	1,962			$	1,962

	Mortgage loans held for sale	—				897				—				897

	Total nonrecurring assets at fair value	$	—			$	897			$	1,962			$	2,859

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				Significant				Significant				Total
		Prices in Active				Other				Unobservable
		Markets				Observable				Inputs
		(Level 1)				Inputs				(Level 3)
						(Level 2)
	December 31, 2014
	Other real estate owned	$	—			$	—			$	80			$	80

	Acquired other real estate owned	—				—				10,859				10,859

	Total other real estate owned	$	—			$	—			$	10,939			$	10,939


	December 31, 2013
	Other real estate owned	$	—			$	—			$	980			$	980

	Acquired other real estate owned	—				—				55,982				55,982

	Total other real estate owned	$	—			$	—			$	56,962			$	56,962

Fair Value, Assets Measured on a Nonrecurring 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 Topic 820, Fair Value Measurements and Disclosures, to the amount recorded on the consolidated statements of financial condition (dollars in thousands):


		December 31, 2014				December 31, 2013
	Other real estate owned:
	Other real estate owned at fair value	$	80			$	980

	Estimated selling costs	(6		)		(15		)
	Other real estate owned	$	74			$	965


	Acquired other real estate owned:
	Other real estate owned at fair value	$	10,859			$	55,982

	Estimated selling costs and other adjustments	(2,365		)		(9,760		)
	Other real estate owned	$	8,494			$	46,222

Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques	A summary of the key characteristics, inputs and economic assumptions used to estimate the fair value of the Company's SBA servicing rights asset are as follows (dollars in thousands):


	SBA Servicing Rights		31-Dec-14
	Fair value		$	1,516

	Weighted average discount rate		11.3			%

	Prepayment speed		6.7			%

	Weighted average remaining life (years)		7.8

	The following tables provide information describing the unobservable inputs used in Level 3 fair value measurements at the dates indicated (dollars in thousands):


	December 31, 2014		Fair Value				Valuation Technique		Unobservable Inputs		Range (Weighted Average)
	SBA servicing rights		$	1,516			Discounted cash flows		Discount rate		8% - 14% (11%)
									Prepayment speed		4% - 9% (7%)
	Impaired loans - collateral dependent		$	5,167			Third party appraisal		Management discount for property type and recent market volatility		0% - 50% (9%)

	Other real estate owned		$	80			Third party appraisal		Management discount for property type and recent market volatility		0% - 0% (0%)

	Acquired other real estate owned		$	10,859			Third party appraisal		Management discount for property type and recent market volatility		0% - 76% (45%)



	December 31, 2013		Fair Value				Valuation Technique		Unobservable Inputs		Range (Weighted Average)
	Impaired loans - collateral dependent		$	1,962			Third party appraisal		Management discount for property type and recent market volatility		0% - 50% (13%)

	Other real estate owned		$	980			Third party appraisal		Management discount for property type and recent market volatility		0% - 31% (6%)

	Acquired other real estate owned		$	55,982			Third party appraisal		Management discount for property type and recent market volatility		0% - 84% (39%)

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 estimated fair value amounts have been determined by the Company 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 December 31, 2014 and 2013.


				December 31, 2014								December 31, 2013
		Fair Value Hierarchy Level		Carrying				Estimated				Carrying				Estimated
				Amount				Fair Value				Amount				Fair Value
	Assets:
	Cash and cash equivalents	Level 1		$	481,158			$	481,158			$	598,749			$	598,749

	Investment securities available-for-sale	Levels 1 & 2		640,086				640,086				387,048				387,048

	Mortgage loans held for sale	Level 2		3,174				3,245				897				897

	Net loans	Level 3		1,605,891				1,646,222				1,346,904				1,396,958

	Other real estate owned	Level 3		8,568				10,939				47,187				56,962

	FDIC receivable for loss share agreements, net	Level 3		22,320				7,572				107,843				58,496

	Derivative financial instruments	Level 2		3,879				3,879				8,087				8,087

	SBA servicing rights	Level 3		1,516				1,516				—				—

	Accrued interest receivable	Level 2		5,989				5,989				2,935				2,935

	Federal Home Loan Bank stock	Level 3		2,512				2,512				3,195				3,195

	Liabilities:
	Deposits	Level 2		$	2,391,682			$	2,391,805			$	2,128,325			$	2,128,611

	Securities sold under agreements to repurchase	Level 2		—				—				1,216				1,216

	Notes payable	Level 2		2,771				2,771				5,682				5,682

	Derivative financial instruments	Level 2		1,666				1,666				764				764

	Accrued interest payable	Level 2		887				887				865				865

Income_Taxes_Tables

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Schedule of Components of Income Tax Expense (Benefit)	The components of income tax expense were as follows (dollars in thousands):


		Years Ended December 31
		2014			2013			2012
	Current tax provision:
	Federal	$	25,617		$	46,180		$	20,726

	State	2,885			4,784			582

	Total current tax provision	28,502			50,964			21,308

	Deferred tax provision:
	Federal	(8,970		)	(39,709		)	(8,877		)
	State	(1,211		)	(4,688		)	(9		)
	Total deferred tax provision	(10,181		)	(44,397		)	(8,886		)
	Total income tax provision	$	18,321		$	6,567		$	12,422

Schedule of Effective Income Tax Rate Reconciliation	Income tax expense differed from amounts computed by applying the Federal statutory rate of 35% to income before income taxes due to the following factors (dollars in thousands):


		Years Ended December 31
		2014			2013			2012
	Statutory Federal income taxes	$	17,234		$	6,760		$	12,307

	State taxes, net of federal benefit	1,088			62			372

	Tax-exempt interest	(177		)	(247		)	(143		)
	Bank-owned life insurance income	(467		)	(474		)	(489		)
	Other	643			466			375

	Actual income taxes	$	18,321		$	6,567		$	12,422


Schedule of Deferred Tax Assets and Liabilities	The components of the net deferred tax liability included in other liabilities in the accompanying consolidated statement of financial condition are as follows (dollars in thousands):


		31-Dec
		2014			2013
	Deferred tax assets
	Allowance for loan losses	$	11,077		$	13,176

	Net operating losses and credit carryforward	5,658			7

	Accrued compensation	4,095			3,941

	Tax basis difference on acquired assets	2,426			—

	FDIC clawback liability	2,191			1,812

	Other real estate owned	554			8

	Unrealized losses on cash flow hedges	183			—

	Estimated loss on acquired failed bank assets	—			30,328

	Other	618			80

	Total deferred tax assets	26,802			49,352


	Deferred tax liabilities
	FDIC loss share receivable	$	(8,633	)	$	(39,901	)
	Intangible asset basis difference	(3,880		)	(3,364		)
	Unrealized gains on securities available-for-sale	(2,655		)	(2,327		)
	Deferred gain on FDIC-assisted transactions	(1,532		)	(12,985		)
	Estimated gain on acquired failed bank assets	(1,308		)	—

	Premises and equipment	(883		)	(1,477		)
	Unrealized gains on cash flow hedges	—			(457		)

	Other	(1,187		)	(1,188		)
	Total deferred tax liabilities	(20,078		)	(61,699		)

	Net Deferred Tax Asset (Liability)	$	6,724		$	(12,347	)

Earnings_Per_Share_Tables

Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2014
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):


		Years Ended December 31
		2014		2013		2012
	Numerator:
	Net Income	$	30,918	$	12,747	$	22,742

	Denominator:
	Weighted average common shares outstanding	32,175,363		31,978,844		31,696,358

	Weighted average dilutive grants	1,560,989		1,311,721		1,193,916

	Weighted average common shares outstanding including dilutive grants	33,736,352		33,290,565		32,890,274


	Net Income per share:
	Basic	$	0.96	$	0.4	$	0.72

	Diluted	$	0.92	$	0.38	$	0.69

Accumulated_Other_Comprehensiv1

Accumulated Other Comprehensive Income (Tables)	12 Months Ended
	Dec. 31, 2014
Equity [Abstract]
Schedule of Accumulated Other Comprehensive Income (Loss)	The components of AOCI and changes in those components are as follows (dollars in thousands):


		Investment Securities			Cash Flow Hedges			Total
		Available-for-Sale			(Effective Portion)
	Balance, December 31, 2011	$	(2,677	)	$	—		$	(2,677	)

	Other comprehensive income before income taxes:
	Net change in unrealized gains	17,557			—			17,557

	Amounts reclassified for net gains realized and included in earnings	(318		)	—			(318		)

	Income tax expense	6,034			—			6,034

	Balance, December 31, 2012	$	8,528		$	—		$	8,528

	Other comprehensive income before income taxes:
	Net change in unrealized (losses) gains	(5,389		)	1,264			(4,125		)

	Amounts reclassified for net (gains) losses realized and included in earnings	(1,081		)	40			(1,041		)

	Income tax (benefit) expense	(2,265		)	457			(1,808		)

	Balance, December 31, 2013	$	4,323		$	847		$	5,170

	Other comprehensive income (loss) before income taxes:
	Net change in unrealized gains (losses)	62			(2,036		)	(1,974		)

	Amounts reclassified for net (gains) losses realized and included in earnings	(246		)	259			13

	Income tax benefit	(71		)	(640		)	(711		)
	Balance, December 31, 2014	$	4,210		$	(290	)	$	3,920

Reclassifications out of Accumulated Other Comprehensive Income	Reclassifications out of AOCI for the periods presented are as follows (dollars in thousands):


		31-Dec
	AOCI components and affected line items on Consolidated Statements of Income	2014			2013			2012
	Investment securities available-for-sale
	Gain on sale of investment securities	$	(246	)	$	(1,081	)	$	(318	)
	Income tax expense	95			378			111

	Net income	$	(151	)	$	(703	)	$	(207	)

	Cash flow hedges (effective portion)
	Interest expense on deposits	$	259		$	40		$	—

	Income tax benefit	(100		)	(14		)	—

	Net income	$	159		$	26		$	—

Condensed_Financial_Informatio1

Condensed Financial Information of State Bank Financial Corporation (Parent Company Only Financial Statements) (Tables)	12 Months Ended
	Dec. 31, 2014
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
Schedule of Condensed Balance Sheet

	Condensed Statements of Financial Condition
	(Dollars in thousands)



		2014			2013
	Assets
	Cash and due from banks	$	85,607		$	56,365

	Investment in subsidiary	377,188			379,756

	Other assets	1,830			1,062

	Total assets	464,625			437,183

	Liabilities
	Other liabilities	530			—

	Total liabilities	530			—

	Shareholders' equity	464,095			437,183

	Total liabilities and shareholders' equity	$	464,625		$	437,183

Schedule of Condensed Income Statement

	Condensed Statements of Income
	(Dollars in thousands)

		Years Ended December 31
		2014			2013			2012
	Dividends from subsidiary	59,000			25,000			21,503

	Other operating expense	2,404			1,456			1,064

	Income before income tax and equity in undistributed net income of subsidiary	56,596			23,544			20,439

	Income tax benefit	(794		)	(495		)	(371		)
	Income before equity in undistributed net income of subsidiary	57,390			24,039			20,810

	Equity in earnings of subsidiary (less than) greater than dividends received	(26,472		)	(11,292		)	1,932

	Net income	$	30,918		$	12,747		$	22,742

Schedule of Condensed Cash Flow Statement

	Condensed Statements of Cash Flows
	(Dollars in thousands)

		Years Ended December 31
		2014			2013			2012
	Cash flows from operating activities:
	Net income	$	30,918		$	12,747		$	22,742

	Adjustments to reconcile net earnings to net cash provided by operating activities:
	Undistributed earnings of subsidiary less than (greater than) dividends received	26,472			11,292			(1,932		)

	Share-based compensation expense	2,035			1,321			779

	Other, net	(238		)	(301		)	(561		)
	Net cash provided by operating activities	59,187			25,059			21,028

	Cash flows from investing activities:
	Bank of Atlanta acquisition cash consideration paid	(25,154		)	—			—

	Net cash used in investing activities	(25,154		)	—			—

	Cash flows from financing activities:
	Issuance of common stock	195			100			167

	Repurchase of stock warrants	—			(3		)	(55		)

	Restricted stock activity	(156		)	—			—

	Dividends paid	(4,830		)	(3,840		)	(1,910		)
	Net cash used in financing activities	(4,791		)	(3,743		)	(1,798		)
	Net increase in cash and cash equivalents	29,242			21,316			19,230

	Cash and cash equivalents, beginning	56,365			35,049			15,819

	Cash and cash equivalents, ending	$	85,607		$	56,365		$	35,049

Nature_of_Business_and_Summary2

Nature of Business and Summary of Significant Accounting Policies (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Jul. 24, 2009
	branch	Dec. 31, 2013	Jul. 24, 2009
Accounting Policies [Abstract]
Additional capital	$297,479,000	$295,379,000	$292,100,000
Number of branches	21
Percent of loans purchased credit impaired that are covered by loss share agreements	48.20%
Impaired loans, minimum amount to be evaluated on loan by loan basis for impairment	$500,000
Core deposit intangibles and other identifiable intangible assets, estimated useful lives	5 years
Building and Improvements \| Minimum
Property, Plant and Equipment [Line Items]
Useful life	10 years
Building and Improvements \| Maximum
Property, Plant and Equipment [Line Items]
Useful life	25 years
Furniture Fixtures and Equipment \| Minimum
Property, Plant and Equipment [Line Items]
Useful life	3 years
Furniture Fixtures and Equipment \| Maximum
Property, Plant and Equipment [Line Items]
Useful life	15 years

Assets_Assumed_and_Liabilities

Assets Assumed and Liabilities Acquired (Details) (USD $)	12 Months Ended		0 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Oct. 01, 2014
Liabilities
Goodwill	$225	$0
Bank of Atlanta
Assets
Cash and due from banks			4,925
Investment securities			45,060
Loans, net			124,614
Other real estate owned			2,960
Core deposit intangible			0
SBA servicing rights			1,509
Other assets			7,036
Total assets acquired			186,104
Liabilities
Noninterest-bearing			27,453
Interest-bearing			121,035
Total deposits			148,488
Securities sold under agreements to repurchase			6,476
FHLB advances			5,000
Other liabilities			485
Total liabilities assumed			160,449
Net assets acquired			25,655
Cash consideration paid			-25,200
Goodwill			225
Fair Value Adjustments
Assets
Cash and due from banks			0
Investment securities			139
Loans, net			-3,436
Other real estate owned			-1,340
Core deposit intangible			1,460
SBA servicing rights			0
Other assets			3,046
Total assets acquired			-131
Liabilities
Noninterest-bearing			0
Interest-bearing			302
Total deposits			302
Securities sold under agreements to repurchase			0
FHLB advances			0
Other liabilities			293
Total liabilities assumed			595
Net assets acquired			-726
As Recorded by the Company
Assets
Cash and due from banks			4,925
Investment securities			45,199
Loans, net			121,178
Other real estate owned			1,620
Core deposit intangible			1,460
SBA servicing rights			1,509
Other assets			10,082
Total assets acquired			185,973
Liabilities
Noninterest-bearing			27,453
Interest-bearing			121,337
Total deposits			148,790
Securities sold under agreements to repurchase			6,476
FHLB advances			5,000
Other liabilities			778
Total liabilities assumed			161,044
Net assets acquired			24,929
Cash consideration paid			($25,154)

Impact_of_Merger_and_Pro_Forma

Impact of Merger and Pro Forma Information (Details) (Bank of Atlanta, USD $)	3 Months Ended	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2014	Dec. 31, 2013
Bank of Atlanta
Business Acquisition [Line Items]
Net interest income, Bank of Atlanta, actual from acquisition date	$1,547
Net income, Bank of Atlanta, actual from acquisition date	839
Net interest income, Bank of Atlanta, Pro Forma		151,820	192,595
Net Income, Bank of Atlanta, Pro Forma		$32,405	$13,384
Basic earnings per share, Bank of Atlanta, Pro Forma		$1.01	$0.42
Diluted earnings per share, Bank of Atlanta, Pro Forma		$0.96	$0.40

Acquisitions_Narrative_Details

Acquisitions Narrative (Details) (USD $)	12 Months Ended		0 Months Ended
Acquisitions Narrative (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Oct. 01, 2014	Oct. 15, 2012	Dec. 31, 2012
Business Acquisition [Line Items]
Bank of Atlanta acquisition	$225,000	$0
Goodwill	10,606,000	10,381,000			10,381,000
Bank of Atlanta
Business Acquisition [Line Items]
Cash paid for acquisition			25,200,000
Bank of Atlanta acquisition			225,000
Payments for merger-related costs	461,000
Assets acquired			186,104,000
Other intangible assets			1,509,000
Altera Payroll Inc
Business Acquisition [Line Items]
Cash paid for acquisition				5,700,000
Assets acquired				6,200,000
Goodwill				3,800,000
Other intangible assets				$2,400,000

Acquisitions_Loans_Purchased_i

Acquisitions Loans Purchased in Acquisition (Details) (Bank of Atlanta, USD $)	Oct. 01, 2014
In Thousands, unless otherwise specified	Oct. 01, 2014
Purchased Credit Impaired Loans
Business Acquisition [Line Items]
Contractually required principal and interest at acquisition	$16,623
Contractual cash flows not expected to be collected (nonaccretable difference)	-7,002
Expected cash flows at acquisition	9,621
Accretable difference	-926
Basis in acquired loans at acquisition - estimated fair value	8,695
Purchased Non-Credit Impaired Loans
Business Acquisition [Line Items]
Contractually required principal and interest at acquisition	117,600
Contractual cash flows not expected to be collected (nonaccretable difference)	-2,100
Basis in acquired loans at acquisition - estimated fair value	$112,500

Subsequent_Events_unaudited_De

Subsequent Events (unaudited) (Details) (USD $)	0 Months Ended
	Dec. 23, 2014	Dec. 31, 2014	Dec. 31, 2013	Jan. 01, 2015
	Dec. 23, 2014	branch	Dec. 31, 2013	branch
Subsequent Event [Line Items]
Total assets		$2,882,210,000	$2,605,388,000
Number of branches		21
First Bank of Georgia
Subsequent Event [Line Items]
First Bank of Georgia, assets		517,400,000
First Bank of Georgia loans and leases, net		333,800,000
First Bank of Georgia, Acquiree, deposits		416,800,000
Trading day period used to determine average trading price of STBZ common stock	20 days
First Bank of Georgia \| Subsequent Event
Subsequent Event [Line Items]
Total assets				$3,300,000,000
Number of branches				28
Cash paid per share to Georgia-Carolina shareholders				$8.85
Shares issued to Georgia-Carolina shareholders				$0.79

Investment_Securities_Availabl

Investment Securities (Available-for-Sale Reconciliation) (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$633,221	$380,399
Unrealized Gains	8,326	8,667
Unrealized Losses	1,461	2,018
Fair Value	640,086	387,048
US Government securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	116,830	80,692
Unrealized Gains	615	460
Unrealized Losses	96	41
Fair Value	117,349	81,111
States and political subdivisions
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	5,881	9,317
Unrealized Gains	20	51
Unrealized Losses	4	1
Fair Value	5,897	9,367
Residential mortgage-backed securities - nonagency
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	109,344	110,900
Unrealized Gains	5,780	6,766
Unrealized Losses	93	19
Fair Value	115,031	117,647
Residential mortgage backed securities - agency
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	351,769	176,503
Unrealized Gains	1,874	1,380
Unrealized Losses	1,115	1,957
Fair Value	352,528	175,926
Asset-backed securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	26,820	2,936
Unrealized Gains	0	4
Unrealized Losses	120	0
Fair Value	26,700	2,940
Corporate securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	22,577	0
Unrealized Gains	37	0
Unrealized Losses	33	0
Fair Value	22,581	0
Equity securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	0	51
Unrealized Gains	0	6
Unrealized Losses	0	0
Fair Value	$0	$57

Investment_Securities_Schedule

Investment Securities (Schedule of Contractual Maturities of Investment Securities Available for Sale) (Details) (USD $)	Dec. 31, 2014
In Thousands, unless otherwise specified	Dec. 31, 2014
Schedule of Available-for-sale Securities [Line Items]
Due within one year, Amortized Cost	$24,028
Due from one year to five years, Amortized Cost	98,844
Due from five years to ten years, Amortized Cost	307,634
Due after Ten Years, Amortized Cost	202,715
Amortized Cost	633,221
Due within one year, Fair Value	24,053
Due from one year to five years, Fair Value	98,912
Due from five years to ten years, Fair Value	308,556
Due after ten years, Fair Value	208,565
Fair Value	640,086
US Government securities
Schedule of Available-for-sale Securities [Line Items]
Due within one year, Amortized Cost	20,005
Due from one year to five years, Amortized Cost	74,409
Due from five years to ten years, Amortized Cost	3,938
Due after Ten Years, Amortized Cost	18,478
Amortized Cost	116,830
Due within one year, Fair Value	20,025
Due from one year to five years, Fair Value	74,462
Due from five years to ten years, Fair Value	4,092
Due after ten years, Fair Value	18,770
Fair Value	117,349
States and political subdivisions
Schedule of Available-for-sale Securities [Line Items]
Due within one year, Amortized Cost	4,023
Due from one year to five years, Amortized Cost	1,858
Due from five years to ten years, Amortized Cost	0
Due after Ten Years, Amortized Cost	0
Amortized Cost	5,881
Due within one year, Fair Value	4,028
Due from one year to five years, Fair Value	1,869
Due from five years to ten years, Fair Value	0
Due after ten years, Fair Value	0
Fair Value	5,897
Residential mortgage-backed securities - nonagency
Schedule of Available-for-sale Securities [Line Items]
Due within one year, Amortized Cost	0
Due from one year to five years, Amortized Cost	0
Due from five years to ten years, Amortized Cost	0
Due after Ten Years, Amortized Cost	109,344
Amortized Cost	109,344
Due within one year, Fair Value	0
Due from one year to five years, Fair Value	0
Due from five years to ten years, Fair Value	0
Due after ten years, Fair Value	115,031
Fair Value	115,031
Residential mortgage backed securities - agency
Schedule of Available-for-sale Securities [Line Items]
Due within one year, Amortized Cost	0
Due from one year to five years, Amortized Cost	0
Due from five years to ten years, Amortized Cost	298,786
Due after Ten Years, Amortized Cost	52,983
Amortized Cost	351,769
Due within one year, Fair Value	0
Due from one year to five years, Fair Value	0
Due from five years to ten years, Fair Value	299,589
Due after ten years, Fair Value	52,939
Fair Value	352,528
Asset-backed securities
Schedule of Available-for-sale Securities [Line Items]
Due within one year, Amortized Cost	0
Due from one year to five years, Amortized Cost	0
Due from five years to ten years, Amortized Cost	4,910
Due after Ten Years, Amortized Cost	21,910
Amortized Cost	26,820
Due within one year, Fair Value	0
Due from one year to five years, Fair Value	0
Due from five years to ten years, Fair Value	4,875
Due after ten years, Fair Value	21,825
Fair Value	26,700
Corporate securities
Schedule of Available-for-sale Securities [Line Items]
Due within one year, Amortized Cost	0
Due from one year to five years, Amortized Cost	22,577
Due from five years to ten years, Amortized Cost	0
Due after Ten Years, Amortized Cost	0
Amortized Cost	22,577
Due within one year, Fair Value	0
Due from one year to five years, Fair Value	22,581
Due from five years to ten years, Fair Value	0
Due after ten years, Fair Value	0
Fair Value	$22,581

Investment_Securities_Summary_

Investment Securities (Summary of Gross Unrealized Losses and Fair Value of Investments with Unrealized Losses) (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	$213,729	$124,575
Less than 12 Months, Unrealized Losses	804	1,910
12 Months or More, Fair Value	40,014	5,367
12 Months or More, Unrealized Losses	657	108
Total, Fair Value	253,743	129,942
Total, Unrealized Losses	1,461	2,018
US Government securities
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	37,649	16,340
Less than 12 Months, Unrealized Losses	96	41
12 Months or More, Fair Value	0	0
12 Months or More, Unrealized Losses	0	0
Total, Fair Value	37,649	16,340
Total, Unrealized Losses	96	41
States and political subdivisions
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	3,041	699
Less than 12 Months, Unrealized Losses	4	1
12 Months or More, Fair Value	0	0
12 Months or More, Unrealized Losses	0	0
Total, Fair Value	3,041	699
Total, Unrealized Losses	4	1
Residential mortgage-backed securities - nonagency
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	17,295	0
Less than 12 Months, Unrealized Losses	71	0
12 Months or More, Fair Value	834	956
12 Months or More, Unrealized Losses	22	19
Total, Fair Value	18,129	956
Total, Unrealized Losses	93	19
Residential mortgage backed securities - agency
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	118,514	107,536
Less than 12 Months, Unrealized Losses	480	1,868
12 Months or More, Fair Value	39,180	4,411
12 Months or More, Unrealized Losses	635	89
Total, Fair Value	157,694	111,947
Total, Unrealized Losses	1,115	1,957
Asset-backed securities
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	21,700
Less than 12 Months, Unrealized Losses	120
12 Months or More, Fair Value	0
12 Months or More, Unrealized Losses	0
Total, Fair Value	21,700
Total, Unrealized Losses	120
Corporate securities
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	15,530
Less than 12 Months, Unrealized Losses	33
12 Months or More, Fair Value	0
12 Months or More, Unrealized Losses	0
Total, Fair Value	15,530
Total, Unrealized Losses	$33

Investment_Securities_Gains_an

Investment Securities (Gains and Losses on Investment Securities Available-for-Sale) (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Available-for-sale Securities [Abstract]
Proceeds from sales and calls	$112,944	$28,636	$24,303
Gross gains on securities available-for-sale	266	1,081	319
Gross losses on securities available-for-sale	-20	0	-1
Net realized gains on securities available-for-sale	$246	$1,081	$318

Investment_Securities_Narrativ

Investment Securities (Narrative) (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified	Investment_Securities	Dec. 31, 2013
Available-for-sale Securities [Abstract]
Number of investments in unrealized loss position	54
Available-for-sale securities pledged as collateral	$283.40	$132

Loans_Loans_Summary_Details

Loans Loans (Summary) (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
	transaction	Dec. 31, 2013
Loans and Leases Receivable, Net Amount [Abstract]
Loans Receivable, Gross, Commercial, Construction	$337,697	$286,426
Other commercial real estate	694,951	618,047
Loans Receivable, Gross, Commercial, Real Estate	1,032,648	904,473
Loans and Leases Receivable, Gross, Consumer, Real Estate	213,910	162,075
Loans Receivable, Gross, Commercial, Real Estate	253,844	229,294
Loans and Leases Receivable, Gross, Commercial	104,518	75,295
Leases Receivable, Gross, Commercial, Lease Financing	19,959	0
Loans and Leases Receivable, Gross, Consumer	9,650	9,832
Loans and Leases Receivable, Gross	1,634,529	1,380,969
Loans and Leases Receivable, Allowance	-28,638	-34,065
Loans, net	$1,605,891	$1,346,904
Receivables [Abstract]
Number of failed bank acquisitions	12
Loans covered by FDIC loss share agreement, percent	10.00%

Loans_Organic_Details

Loans (Organic) (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Loans
Construction, land & land development	$310,987	$251,043
Other commercial real estate	609,478	550,474
Total commercial real estate	920,465	801,517
Residential real estate	91,448	66,835
Owner-occupied real estate	188,933	174,858
Commercial, financial & agricultural	90,930	71,006
Leases	19,959	0
Consumer	8,658	9,259
Total organic loans	1,320,393	1,123,475
Allowance for loan losses	-18,392	-16,656
Total organic loans, net	1,302,001	1,106,819
Net deferred loan fees	$4,500	$2,600

Loans_Loans_Purchased_NonCredi

Loans Loans (Purchased Non-Credit Impaired) (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Loans and Leases Receivable, Net Amount [Abstract]
Construction, land & land development	$2,166	$0
Other commercial real estate	26,793	0
Total commercial real estate	28,959	0
Residential real estate	43,669	0
Owner-occupied real estate	22,743	0
Commercial, financial & agricultural	11,635	0
Consumer	791	0
Total purchased non-credit impaired loans	107,797	0
Allowance for loan losses	0	0
Total purchased non-credit impaired loans, net	107,797	0
Net discounts	$5,200

Loans_Purchased_Credit_Impaire

Loans (Purchased Credit Impaired) (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Loans and Leases Receivable, Net Amount [Abstract]
Construction, land & land development	$24,544	$35,383
Other commercial real estate	58,680	67,573
Total commercial real estate	83,224	102,956
Residential real estate	78,793	95,240
Owner-occupied real estate	42,168	54,436
Commercial, financial & agricultural	1,953	4,289
Consumer	201	573
Total purchased credit impaired loans	206,339	257,494
Allowance for loan losses	-10,246	-17,409
Loans and Leases Receivable, Net Amount, Purchased Non-Credit Impaired	196,093	240,085
Loans and Leases Receivable, Covered	$99,530	$257,494

Loans_Changes_in_Carrying_Valu

Loans (Changes in Carrying Value of Purchased Credit Impaired Loans) (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Changes in carrying value of Purchased Credit Impaired Loans [Roll Forward]
Balance, beginning of year	$240,085	$419,235
Accretion of fair value discounts	78,857	122,466
Fair value of acquired loans	32,344	0
Reductions in principal balances resulting from repayments, write-offs and foreclosures	-162,356	-339,685
Change in the allowance for loan and lease losses on purchased credit impaired loans	7,163	38,069
Balance, end of year	$196,093	$240,085

Loans_Change_in_Accretable_Dis

Loans (Change in Accretable Discount) (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Balance, beginning of year	$185,024	$172,804	$230,697
Additions from acquisitions	7,351	0	0
Accretion	-78,857	-122,466	-102,413
Transfers to accretable discount (exit events), net	6,543	134,686	44,520
Balance, end of year	$120,061	$185,024	$172,804

Allowance_for_Loan_and_Lease_L2

Allowance for Loan and Lease Losses (ALLL) (ALLL Rollforward) (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of year	$34,065
Provision for loan losses	2,896	-2,487	15,116
Balance, end of year	28,638	34,065
Organic Loans
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of year	16,656	14,660	10,207
Loans charged-offs	-1,552	-417	-669
Recoveries of loans previously charged off	513	493	87
Net (charge-offs) recoveries	-1,039	76	-582
Provision for loan losses	2,775	1,920	5,035
Balance, end of year	18,392	16,656	14,660
Individually evaluated for impairment	486	303
Collectively evaluated for impairment	17,906	16,353
Loans individually evaluated for impairment	5,546	2,338
Loans collectively evaluated for impairment	1,314,847	1,121,137
Financing Receivable, Gross	1,320,393	1,123,475
Organic Loans \| Total commercial real estate
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of year	11,163	9,495	6,423
Loans charged-offs	-1,267	-190	-510
Recoveries of loans previously charged off	292	439	74
Provision for loan losses	2,946	1,419	3,508
Balance, end of year	13,134	11,163	9,495
Individually evaluated for impairment	330	98
Collectively evaluated for impairment	12,804	11,065
Loans individually evaluated for impairment	4,089	807
Loans collectively evaluated for impairment	916,376	800,710
Financing Receivable, Gross	920,465	801,517
Organic Loans \| Residential Real Estate
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of year	1,015	1,050	561
Loans charged-offs	-1	-38	-75
Recoveries of loans previously charged off	26	20	2
Provision for loan losses	150	-17	562
Balance, end of year	1,190	1,015	1,050
Individually evaluated for impairment	58	38
Collectively evaluated for impairment	1,132	977
Loans individually evaluated for impairment	1,263	1,198
Loans collectively evaluated for impairment	90,185	65,637
Financing Receivable, Gross	91,448	66,835
Organic Loans \| Owner-Occupied Real Estate
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of year	2,535	2,486	2,304
Loans charged-offs	0	-49	0
Recoveries of loans previously charged off	5	5	0
Provision for loan losses	-612	93	182
Balance, end of year	1,928	2,535	2,486
Individually evaluated for impairment	22	42
Collectively evaluated for impairment	1,906	2,493
Loans individually evaluated for impairment	44	84
Loans collectively evaluated for impairment	188,889	174,774
Financing Receivable, Gross	188,933	174,858
Organic Loans \| Commercial, Financial & Agricultural
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of year	1,799	1,497	765
Loans charged-offs	-256	-114	-75
Recoveries of loans previously charged off	186	24	6
Provision for loan losses	41	392	801
Balance, end of year	1,770	1,799	1,497
Individually evaluated for impairment	66	117
Collectively evaluated for impairment	1,704	1,682
Loans individually evaluated for impairment	131	234
Loans collectively evaluated for impairment	90,799	70,772
Financing Receivable, Gross	90,930	71,006
Organic Loans \| Leases
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of year	0	0	0
Loans charged-offs	0	0	0
Recoveries of loans previously charged off	0	0	0
Provision for loan losses	262	0	0
Balance, end of year	262	0	0
Individually evaluated for impairment	0
Collectively evaluated for impairment	262
Loans individually evaluated for impairment	0
Loans collectively evaluated for impairment	19,959
Financing Receivable, Gross	19,959
Organic Loans \| Consumer
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of year	144	132	154
Loans charged-offs	-28	-26	-9
Recoveries of loans previously charged off	4	5	5
Provision for loan losses	-12	33	-18
Balance, end of year	108	144	132
Individually evaluated for impairment	10	8
Collectively evaluated for impairment	98	136
Loans individually evaluated for impairment	19	15
Loans collectively evaluated for impairment	8,639	9,244
Financing Receivable, Gross	8,658	9,259
Purchased Credit Impaired Loans
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of year	17,409	55,478	59,277
Loans charged-offs	-17,778	-35,989	-61,976
Recoveries of loans previously charged off	13,384	32,515	7,540
Net (charge-offs) recoveries	-4,394	-3,474	-54,436
Provision for loan losses	-2,769	-34,595	50,637
Amount attributable to FDIC loss share agreements	2,890	30,188	-40,556
Total provision for loan losses charged to operations	121	-4,407	10,081
(Recovery of) provision for loan losses recorded through the FDIC loss share receivable	-2,890	-30,188	40,556
Balance, end of year	10,246	17,409	55,478
Individually evaluated for impairment	4,386	8,169
Collectively evaluated for impairment	5,860	9,240
Loans individually evaluated for impairment	66,559	67,575
Loans collectively evaluated for impairment	139,780	189,919
Financing Receivable, Gross	206,339	257,494
Purchased Credit Impaired Loans \| Total commercial real estate
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of year	11,226	27,152	37,332
Loans charged-offs	-12,302	-25,554	-50,259
Recoveries of loans previously charged off	8,682	18,661	6,999
Provision for loan losses	-2,145	-9,033	33,080
Amount attributable to FDIC loss share agreements	2,239	7,882	-26,494
Total provision for loan losses charged to operations	94	-1,151	6,586
(Recovery of) provision for loan losses recorded through the FDIC loss share receivable	-2,239	-7,882	26,494
Balance, end of year	5,461	11,226	27,152
Individually evaluated for impairment	1,830	6,018
Collectively evaluated for impairment	3,631	5,208
Loans individually evaluated for impairment	42,721	49,713
Loans collectively evaluated for impairment	40,503	53,243
Financing Receivable, Gross	83,224	102,956
Purchased Credit Impaired Loans \| Residential Real Estate
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of year	2,481	21,545	14,372
Loans charged-offs	-1,228	-2,697	-4,544
Recoveries of loans previously charged off	1,491	5,500	169
Provision for loan losses	-446	-21,867	11,548
Amount attributable to FDIC loss share agreements	466	19,083	-9,249
Total provision for loan losses charged to operations	20	-2,784	2,299
(Recovery of) provision for loan losses recorded through the FDIC loss share receivable	-466	-19,083	9,249
Balance, end of year	2,298	2,481	21,545
Individually evaluated for impairment	1,094	966
Collectively evaluated for impairment	1,204	1,515
Loans individually evaluated for impairment	3,718	2,132
Loans collectively evaluated for impairment	75,075	93,108
Financing Receivable, Gross	78,793	95,240
Purchased Credit Impaired Loans \| Owner-Occupied Real Estate
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of year	1,950	4,021	4,597
Loans charged-offs	-2,775	-4,619	-5,038
Recoveries of loans previously charged off	1,429	3,637	357
Provision for loan losses	1,312	-1,089	4,105
Amount attributable to FDIC loss share agreements	-1,370	950	-3,288
Total provision for loan losses charged to operations	-58	-139	817
(Recovery of) provision for loan losses recorded through the FDIC loss share receivable	1,370	-950	3,288
Balance, end of year	1,916	1,950	4,021
Individually evaluated for impairment	1,462	1,077
Collectively evaluated for impairment	454	873
Loans individually evaluated for impairment	19,736	15,449
Loans collectively evaluated for impairment	22,432	38,987
Financing Receivable, Gross	42,168	54,436
Purchased Credit Impaired Loans \| Commercial, Financial & Agricultural
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of year	1,680	2,607	2,976
Loans charged-offs	-1,409	-2,856	-2,123
Recoveries of loans previously charged off	1,714	3,494	15
Provision for loan losses	-1,418	-1,565	1,739
Amount attributable to FDIC loss share agreements	1,480	1,365	-1,393
Total provision for loan losses charged to operations	62	-200	346
(Recovery of) provision for loan losses recorded through the FDIC loss share receivable	-1,480	-1,365	1,393
Balance, end of year	567	1,680	2,607
Individually evaluated for impairment	0	36
Collectively evaluated for impairment	567	1,644
Loans individually evaluated for impairment	353	16
Loans collectively evaluated for impairment	1,600	4,273
Financing Receivable, Gross	1,953	4,289
Purchased Credit Impaired Loans \| Consumer
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of year	72	153	0
Loans charged-offs	-64	-263	-12
Recoveries of loans previously charged off	68	1,223	0
Provision for loan losses	-72	-1,041	165
Amount attributable to FDIC loss share agreements	75	908	-132
Total provision for loan losses charged to operations	3	-133	33
(Recovery of) provision for loan losses recorded through the FDIC loss share receivable	-75	-908	132
Balance, end of year	4	72	153
Individually evaluated for impairment	0	72
Collectively evaluated for impairment	4	0
Loans individually evaluated for impairment	31	265
Loans collectively evaluated for impairment	170	308
Financing Receivable, Gross	$201	$573

Allowance_for_Loan_and_Lease_L3

Allowance for Loan and Lease Losses (ALLL) (Impaired Loans) (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance with No Related Allowance	$5,491	$1,893
Recorded Investment with No Related Allowance	4,301	1,488
Unpaid Principal Balance with Related Allowance	1,561	1,168
Recorded Investment with Related Allowance	1,352	777
Related Allowance	486	303
Unpaid Principal Balance	7,052	3,061
Recorded Investment	5,653	2,265
Average Recorded Investment	2,736	3,478	5,205
Interest Income Recognized	127	8	80
Average recorded investment for troubled debt restructuring	1,302	1,034	2,352
Interest income recognized on troubled debt restructurings	41	5	70
Construction, land and land development
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance with No Related Allowance	4,616	501
Recorded Investment with No Related Allowance	3,426	269
Unpaid Principal Balance with Related Allowance	3	333
Recorded Investment with Related Allowance	3	52
Related Allowance	1	26
Average Recorded Investment	669	324	350
Interest Income Recognized	86	0	0
Other commercial real estate
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance with No Related Allowance	0	523
Recorded Investment with No Related Allowance	0	350
Unpaid Principal Balance with Related Allowance	834	179
Recorded Investment with Related Allowance	659	136
Related Allowance	329	72
Average Recorded Investment	515	1,309	3,202
Interest Income Recognized	27	5	55
Total commercial real estate
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance with No Related Allowance	4,616	1,024
Recorded Investment with No Related Allowance	3,426	619
Unpaid Principal Balance with Related Allowance	837	512
Recorded Investment with Related Allowance	662	188
Related Allowance	330	98
Average Recorded Investment	1,184	1,633	3,552
Interest Income Recognized	113	5	55
Residential Real Estate
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance with No Related Allowance	875	869
Recorded Investment with No Related Allowance	875	869
Unpaid Principal Balance with Related Allowance	432	316
Recorded Investment with Related Allowance	399	256
Related Allowance	58	38
Average Recorded Investment	1,213	1,295	1,301
Interest Income Recognized	8	3	23
Owner-Occupied Real Estate
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance with No Related Allowance	0	0
Recorded Investment with No Related Allowance	0	0
Unpaid Principal Balance with Related Allowance	44	89
Recorded Investment with Related Allowance	44	84
Related Allowance	22	42
Average Recorded Investment	103	171	112
Interest Income Recognized	0	0	1
Commercial, Financial & Agricultural
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance with No Related Allowance	0	0
Recorded Investment with No Related Allowance	0	0
Unpaid Principal Balance with Related Allowance	227	234
Recorded Investment with Related Allowance	227	234
Related Allowance	66	117
Average Recorded Investment	216	341	197
Interest Income Recognized	3	0	0
Consumer
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance with No Related Allowance	0	0
Recorded Investment with No Related Allowance	0	0
Unpaid Principal Balance with Related Allowance	21	17
Recorded Investment with Related Allowance	20	15
Related Allowance	10	8
Average Recorded Investment	20	38	43
Interest Income Recognized	$3	$0	$1

Allowance_for_Loan_and_Lease_L4

Allowance for Loan and Lease Losses (ALLL) (Nonaccrual Loans) (Details) (Organic and Purchased Non-Credit Impaired Loans, USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Financing Receivable, Impaired [Line Items]
Nonaccrual Loans	$5,653	$2,265
Construction, land and land development
Financing Receivable, Impaired [Line Items]
Nonaccrual Loans	3,429	321
Other commercial real estate
Financing Receivable, Impaired [Line Items]
Nonaccrual Loans	659	486
Total commercial real estate
Financing Receivable, Impaired [Line Items]
Nonaccrual Loans	4,088	807
Residential Real Estate
Financing Receivable, Impaired [Line Items]
Nonaccrual Loans	1,274	1,125
Owner-Occupied Real Estate
Financing Receivable, Impaired [Line Items]
Nonaccrual Loans	44	84
Commercial, Financial & Agricultural
Financing Receivable, Impaired [Line Items]
Nonaccrual Loans	227	234
Consumer
Financing Receivable, Impaired [Line Items]
Nonaccrual Loans	$20	$15

Allowance_for_Loan_and_Lease_L5

Allowance for Loan and Lease Losses (ALLL) (Past Due Loans) (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	$1,634,529	$1,380,969
Organic Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 89 Days Past Due	863	458
90 Days or greater Past Due	1,442	542
Total Past Due	2,305	1,000
Current	1,318,088	1,122,475
Total Loans	1,320,393	1,123,475
Loans greater than 90 Days and Accruing	0	0
Organic Loans \| Construction, land and land development
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 89 Days Past Due	0	57
90 Days or greater Past Due	0	275
Total Past Due	0	332
Current	310,987	250,711
Total Loans	310,987	251,043
Loans greater than 90 Days and Accruing	0	0
Organic Loans \| Other commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 89 Days Past Due	24	0
90 Days or greater Past Due	385	0
Total Past Due	409	0
Current	609,069	550,474
Total Loans	609,478	550,474
Loans greater than 90 Days and Accruing	0	0
Organic Loans \| Total commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 89 Days Past Due	24	57
90 Days or greater Past Due	385	275
Total Past Due	409	332
Current	920,056	801,185
Total Loans	920,465	801,517
Loans greater than 90 Days and Accruing	0	0
Organic Loans \| Residential Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 89 Days Past Due	527	207
90 Days or greater Past Due	893	62
Total Past Due	1,420	269
Current	90,028	66,566
Total Loans	91,448	66,835
Loans greater than 90 Days and Accruing	0	0
Organic Loans \| Owner-Occupied Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 89 Days Past Due	287	44
90 Days or greater Past Due	44	83
Total Past Due	331	127
Current	188,602	174,731
Total Loans	188,933	174,858
Loans greater than 90 Days and Accruing	0	0
Organic Loans \| Commercial, Financial & Agricultural
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 89 Days Past Due	0	65
90 Days or greater Past Due	108	116
Total Past Due	108	181
Current	90,822	70,825
Total Loans	90,930	71,006
Loans greater than 90 Days and Accruing	0	0
Organic Loans \| Leases
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 89 Days Past Due	0
90 Days or greater Past Due	0
Total Past Due	0
Current	19,959
Total Loans	19,959
Loans greater than 90 Days and Accruing	0
Organic Loans \| Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 89 Days Past Due	25	85
90 Days or greater Past Due	12	6
Total Past Due	37	91
Current	8,621	9,168
Total Loans	8,658	9,259
Loans greater than 90 Days and Accruing	0	0
Purchased Non-Credit Impaired Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 89 Days Past Due	490
90 Days or greater Past Due	11
Total Past Due	501
Current	107,296
Total Loans	107,797
Loans greater than 90 Days and Accruing	0
Purchased Non-Credit Impaired Loans \| Construction, land and land development
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 89 Days Past Due	0
90 Days or greater Past Due	0
Total Past Due	0
Current	2,166
Total Loans	2,166
Loans greater than 90 Days and Accruing	0
Purchased Non-Credit Impaired Loans \| Other commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 89 Days Past Due	0
90 Days or greater Past Due	0
Total Past Due	0
Current	26,793
Total Loans	26,793
Loans greater than 90 Days and Accruing	0
Purchased Non-Credit Impaired Loans \| Total commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 89 Days Past Due	0
90 Days or greater Past Due	0
Total Past Due	0
Current	28,959
Total Loans	28,959
Loans greater than 90 Days and Accruing	0
Purchased Non-Credit Impaired Loans \| Residential Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 89 Days Past Due	490
90 Days or greater Past Due	11
Total Past Due	501
Current	43,168
Total Loans	43,669
Loans greater than 90 Days and Accruing	0
Purchased Non-Credit Impaired Loans \| Owner-Occupied Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 89 Days Past Due	0
90 Days or greater Past Due	0
Total Past Due	0
Current	22,743
Total Loans	22,743
Loans greater than 90 Days and Accruing	0
Purchased Non-Credit Impaired Loans \| Commercial, Financial & Agricultural
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 89 Days Past Due	0
90 Days or greater Past Due	0
Total Past Due	0
Current	11,635
Total Loans	11,635
Loans greater than 90 Days and Accruing	0
Purchased Non-Credit Impaired Loans \| Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 89 Days Past Due	0
90 Days or greater Past Due	0
Total Past Due	0
Current	791
Total Loans	791
Loans greater than 90 Days and Accruing	0
Purchased Credit Impaired Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 89 Days Past Due	7,316	11,540
90 Days or greater Past Due	24,920	40,040
Total Past Due	32,236	51,580
Current	174,103	205,914
Total Loans	206,339	257,494
Purchased Credit Impaired Loans \| Construction, land and land development
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 89 Days Past Due	1,235	1,134
90 Days or greater Past Due	8,797	13,454
Total Past Due	10,032	14,588
Current	14,512	20,795
Total Loans	24,544	35,383
Purchased Credit Impaired Loans \| Other commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 89 Days Past Due	1,443	3,346
90 Days or greater Past Due	4,957	8,541
Total Past Due	6,400	11,887
Current	52,280	55,686
Total Loans	58,680	67,573
Purchased Credit Impaired Loans \| Total commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 89 Days Past Due	2,678	4,480
90 Days or greater Past Due	13,754	21,995
Total Past Due	16,432	26,475
Current	66,792	76,481
Total Loans	83,224	102,956
Purchased Credit Impaired Loans \| Residential Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 89 Days Past Due	3,525	5,548
90 Days or greater Past Due	6,577	7,541
Total Past Due	10,102	13,089
Current	68,691	82,151
Total Loans	78,793	95,240
Purchased Credit Impaired Loans \| Owner-Occupied Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 89 Days Past Due	1,113	1,372
90 Days or greater Past Due	4,148	9,634
Total Past Due	5,261	11,006
Current	36,907	43,430
Total Loans	42,168	54,436
Purchased Credit Impaired Loans \| Commercial, Financial & Agricultural
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 89 Days Past Due	0	139
90 Days or greater Past Due	340	587
Total Past Due	340	726
Current	1,613	3,563
Total Loans	1,953	4,289
Purchased Credit Impaired Loans \| Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 89 Days Past Due	0	1
90 Days or greater Past Due	101	283
Total Past Due	101	284
Current	100	289
Total Loans	$201	$573

Allowance_for_Loan_and_Lease_L6

Allowance for Loan and Lease Losses (ALLL) (Loan Risk Grades) (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Organic Loans
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	$1,320,393	$1,123,475
Organic Loans \| Pass
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	1,193,782	984,293
Organic Loans \| Watch
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	109,572	127,710
Organic Loans \| OAEM
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	3,156	8,313
Organic Loans \| Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	13,883	3,152
Organic Loans \| Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0	7
Organic Loans \| Construction, land and land development
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	310,987	251,043
Organic Loans \| Construction, land and land development \| Pass
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	272,847	174,700
Organic Loans \| Construction, land and land development \| Watch
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	34,702	71,225
Organic Loans \| Construction, land and land development \| OAEM
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0	4,780
Organic Loans \| Construction, land and land development \| Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	3,438	338
Organic Loans \| Construction, land and land development \| Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0	0
Organic Loans \| Other commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	609,478	550,474
Organic Loans \| Other commercial real estate \| Pass
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	572,098	528,649
Organic Loans \| Other commercial real estate \| Watch
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	35,434	21,148
Organic Loans \| Other commercial real estate \| OAEM
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	905	191
Organic Loans \| Other commercial real estate \| Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	1,041	486
Organic Loans \| Other commercial real estate \| Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0	0
Organic Loans \| Total commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	920,465	801,517
Organic Loans \| Total commercial real estate \| Pass
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	844,945	703,349
Organic Loans \| Total commercial real estate \| Watch
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	70,136	92,373
Organic Loans \| Total commercial real estate \| OAEM
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	905	4,971
Organic Loans \| Total commercial real estate \| Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	4,479	824
Organic Loans \| Total commercial real estate \| Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0	0
Organic Loans \| Residential Real Estate
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	91,448	66,835
Organic Loans \| Residential Real Estate \| Pass
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	69,828	55,447
Organic Loans \| Residential Real Estate \| Watch
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	19,656	9,712
Organic Loans \| Residential Real Estate \| OAEM
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	287	437
Organic Loans \| Residential Real Estate \| Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	1,677	1,239
Organic Loans \| Residential Real Estate \| Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0	0
Organic Loans \| Owner-Occupied Real Estate
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	188,933	174,858
Organic Loans \| Owner-Occupied Real Estate \| Pass
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	162,929	147,510
Organic Loans \| Owner-Occupied Real Estate \| Watch
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	17,999	24,017
Organic Loans \| Owner-Occupied Real Estate \| OAEM
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	1,157	2,540
Organic Loans \| Owner-Occupied Real Estate \| Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	6,848	791
Organic Loans \| Owner-Occupied Real Estate \| Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0	0
Organic Loans \| Commercial, Financial & Agricultural
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	90,930	71,006
Organic Loans \| Commercial, Financial & Agricultural \| Pass
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	87,819	68,866
Organic Loans \| Commercial, Financial & Agricultural \| Watch
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	1,754	1,532
Organic Loans \| Commercial, Financial & Agricultural \| OAEM
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	798	365
Organic Loans \| Commercial, Financial & Agricultural \| Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	559	243
Organic Loans \| Commercial, Financial & Agricultural \| Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0	0
Organic Loans \| Leases
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	19,959
Organic Loans \| Leases \| Pass
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	19,959
Organic Loans \| Leases \| Watch
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0
Organic Loans \| Leases \| OAEM
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0
Organic Loans \| Leases \| Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0
Organic Loans \| Leases \| Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0
Organic Loans \| Consumer
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	8,658	9,259
Organic Loans \| Consumer \| Pass
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	8,302	9,121
Organic Loans \| Consumer \| Watch
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	27	76
Organic Loans \| Consumer \| OAEM
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	9	0
Organic Loans \| Consumer \| Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	320	55
Organic Loans \| Consumer \| Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0	7
Purchased Non-Credit Impaired Loans
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	107,797
Purchased Non-Credit Impaired Loans \| Pass
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	100,726
Purchased Non-Credit Impaired Loans \| Watch
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	6,604
Purchased Non-Credit Impaired Loans \| OAEM
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	264
Purchased Non-Credit Impaired Loans \| Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	203
Purchased Non-Credit Impaired Loans \| Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0
Purchased Non-Credit Impaired Loans \| Construction, land and land development
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	2,166
Purchased Non-Credit Impaired Loans \| Construction, land and land development \| Pass
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	2,166
Purchased Non-Credit Impaired Loans \| Construction, land and land development \| Watch
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0
Purchased Non-Credit Impaired Loans \| Construction, land and land development \| OAEM
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0
Purchased Non-Credit Impaired Loans \| Construction, land and land development \| Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0
Purchased Non-Credit Impaired Loans \| Construction, land and land development \| Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0
Purchased Non-Credit Impaired Loans \| Other commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	26,793
Purchased Non-Credit Impaired Loans \| Other commercial real estate \| Pass
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	24,257
Purchased Non-Credit Impaired Loans \| Other commercial real estate \| Watch
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	2,536
Purchased Non-Credit Impaired Loans \| Other commercial real estate \| OAEM
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0
Purchased Non-Credit Impaired Loans \| Other commercial real estate \| Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0
Purchased Non-Credit Impaired Loans \| Other commercial real estate \| Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0
Purchased Non-Credit Impaired Loans \| Total commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	28,959
Purchased Non-Credit Impaired Loans \| Total commercial real estate \| Pass
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	26,423
Purchased Non-Credit Impaired Loans \| Total commercial real estate \| Watch
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	2,536
Purchased Non-Credit Impaired Loans \| Total commercial real estate \| OAEM
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0
Purchased Non-Credit Impaired Loans \| Total commercial real estate \| Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0
Purchased Non-Credit Impaired Loans \| Total commercial real estate \| Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0
Purchased Non-Credit Impaired Loans \| Residential Real Estate
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	43,669
Purchased Non-Credit Impaired Loans \| Residential Real Estate \| Pass
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	41,868
Purchased Non-Credit Impaired Loans \| Residential Real Estate \| Watch
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	1,694
Purchased Non-Credit Impaired Loans \| Residential Real Estate \| OAEM
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0
Purchased Non-Credit Impaired Loans \| Residential Real Estate \| Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	107
Purchased Non-Credit Impaired Loans \| Residential Real Estate \| Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0
Purchased Non-Credit Impaired Loans \| Owner-Occupied Real Estate
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	22,743
Purchased Non-Credit Impaired Loans \| Owner-Occupied Real Estate \| Pass
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	21,862
Purchased Non-Credit Impaired Loans \| Owner-Occupied Real Estate \| Watch
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	881
Purchased Non-Credit Impaired Loans \| Owner-Occupied Real Estate \| OAEM
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0
Purchased Non-Credit Impaired Loans \| Owner-Occupied Real Estate \| Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0
Purchased Non-Credit Impaired Loans \| Owner-Occupied Real Estate \| Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0
Purchased Non-Credit Impaired Loans \| Commercial, Financial & Agricultural
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	11,635
Purchased Non-Credit Impaired Loans \| Commercial, Financial & Agricultural \| Pass
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	9,800
Purchased Non-Credit Impaired Loans \| Commercial, Financial & Agricultural \| Watch
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	1,475
Purchased Non-Credit Impaired Loans \| Commercial, Financial & Agricultural \| OAEM
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	264
Purchased Non-Credit Impaired Loans \| Commercial, Financial & Agricultural \| Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	96
Purchased Non-Credit Impaired Loans \| Commercial, Financial & Agricultural \| Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0
Purchased Non-Credit Impaired Loans \| Consumer
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	791
Purchased Non-Credit Impaired Loans \| Consumer \| Pass
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	773
Purchased Non-Credit Impaired Loans \| Consumer \| Watch
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	18
Purchased Non-Credit Impaired Loans \| Consumer \| OAEM
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0
Purchased Non-Credit Impaired Loans \| Consumer \| Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0
Purchased Non-Credit Impaired Loans \| Consumer \| Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0
Purchased Credit Impaired Loans
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	206,339	257,494
Purchased Credit Impaired Loans \| Pass
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	63,869	69,461
Purchased Credit Impaired Loans \| Watch
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	50,411	48,208
Purchased Credit Impaired Loans \| OAEM
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	21,058	25,211
Purchased Credit Impaired Loans \| Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	60,304	111,869
Purchased Credit Impaired Loans \| Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	10,697	2,745
Purchased Credit Impaired Loans \| Construction, land and land development
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	24,544	35,383
Purchased Credit Impaired Loans \| Construction, land and land development \| Pass
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	5,833	2,833
Purchased Credit Impaired Loans \| Construction, land and land development \| Watch
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	2,228	7,319
Purchased Credit Impaired Loans \| Construction, land and land development \| OAEM
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	195	969
Purchased Credit Impaired Loans \| Construction, land and land development \| Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	14,485	23,717
Purchased Credit Impaired Loans \| Construction, land and land development \| Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	1,803	545
Purchased Credit Impaired Loans \| Other commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	58,680	67,573
Purchased Credit Impaired Loans \| Other commercial real estate \| Pass
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	5,893	7,563
Purchased Credit Impaired Loans \| Other commercial real estate \| Watch
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	24,139	14,189
Purchased Credit Impaired Loans \| Other commercial real estate \| OAEM
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	8,397	15,027
Purchased Credit Impaired Loans \| Other commercial real estate \| Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	18,383	29,315
Purchased Credit Impaired Loans \| Other commercial real estate \| Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	1,868	1,479
Purchased Credit Impaired Loans \| Total commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	83,224	102,956
Purchased Credit Impaired Loans \| Total commercial real estate \| Pass
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	11,726	10,396
Purchased Credit Impaired Loans \| Total commercial real estate \| Watch
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	26,367	21,508
Purchased Credit Impaired Loans \| Total commercial real estate \| OAEM
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	8,592	15,996
Purchased Credit Impaired Loans \| Total commercial real estate \| Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	32,868	53,032
Purchased Credit Impaired Loans \| Total commercial real estate \| Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	3,671	2,024
Purchased Credit Impaired Loans \| Residential Real Estate
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	78,793	95,240
Purchased Credit Impaired Loans \| Residential Real Estate \| Pass
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	35,829	42,507
Purchased Credit Impaired Loans \| Residential Real Estate \| Watch
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	11,092	16,221
Purchased Credit Impaired Loans \| Residential Real Estate \| OAEM
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	8,649	2,473
Purchased Credit Impaired Loans \| Residential Real Estate \| Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	17,698	33,452
Purchased Credit Impaired Loans \| Residential Real Estate \| Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	5,525	587
Purchased Credit Impaired Loans \| Owner-Occupied Real Estate
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	42,168	54,436
Purchased Credit Impaired Loans \| Owner-Occupied Real Estate \| Pass
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	15,234	15,491
Purchased Credit Impaired Loans \| Owner-Occupied Real Estate \| Watch
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	12,786	9,780
Purchased Credit Impaired Loans \| Owner-Occupied Real Estate \| OAEM
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	3,694	6,702
Purchased Credit Impaired Loans \| Owner-Occupied Real Estate \| Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	9,405	22,463
Purchased Credit Impaired Loans \| Owner-Occupied Real Estate \| Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	1,049	0
Purchased Credit Impaired Loans \| Commercial, Financial & Agricultural
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	1,953	4,289
Purchased Credit Impaired Loans \| Commercial, Financial & Agricultural \| Pass
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	1,048	845
Purchased Credit Impaired Loans \| Commercial, Financial & Agricultural \| Watch
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	142	652
Purchased Credit Impaired Loans \| Commercial, Financial & Agricultural \| OAEM
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	123	39
Purchased Credit Impaired Loans \| Commercial, Financial & Agricultural \| Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	308	2,622
Purchased Credit Impaired Loans \| Commercial, Financial & Agricultural \| Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	332	131
Purchased Credit Impaired Loans \| Consumer
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	201	573
Purchased Credit Impaired Loans \| Consumer \| Pass
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	32	222
Purchased Credit Impaired Loans \| Consumer \| Watch
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	24	47
Purchased Credit Impaired Loans \| Consumer \| OAEM
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0	1
Purchased Credit Impaired Loans \| Consumer \| Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	25	300
Purchased Credit Impaired Loans \| Consumer \| Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	$120	$3

Allowance_for_Loan_and_Lease_L7

Allowance for Loan and Lease Losses (ALLL) (Trouble Debt Restructurings) (Details) (Organic Loans, USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2012
	contract	contract
Financing Receivable, Modifications [Line Items]
Number of Contracts	1	2
Pre-Modification Outstanding Recorded Investment	$3,427	$2,082
Post-Modification Outstanding Recorded Investment	3,427	2,082
Construction, land and land development
Financing Receivable, Modifications [Line Items]
Number of Contracts	1	0
Pre-Modification Outstanding Recorded Investment	3,427	0
Post-Modification Outstanding Recorded Investment	3,427	0
Other commercial real estate
Financing Receivable, Modifications [Line Items]
Number of Contracts	0	1
Pre-Modification Outstanding Recorded Investment	0	1,182
Post-Modification Outstanding Recorded Investment	0	1,182
Total commercial real estate
Financing Receivable, Modifications [Line Items]
Number of Contracts	1	1
Pre-Modification Outstanding Recorded Investment	3,427	1,182
Post-Modification Outstanding Recorded Investment	3,427	1,182
Residential Real Estate
Financing Receivable, Modifications [Line Items]
Number of Contracts	0	1
Pre-Modification Outstanding Recorded Investment	0	900
Post-Modification Outstanding Recorded Investment	$0	$900

Allowance_for_Loan_and_Lease_L8

Allowance for Loan and Lease Losses (ALLL) (Narrative) (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Financing Receivable, Allowance for Credit Losses [Line Items]
Percentage of outstanding loans covered by FDIC loss share agreements	6.10%
Average recorded investment for troubled debt restructuring	$1,302	$1,034	$2,352
Interest income recognized on troubled debt restructurings	41	5	70
Troubled debt restructuring	4,301	869
Purchased Non-Credit Impaired Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Nonaccrual Loans	$107	$0
Total commercial real estate
Financing Receivable, Allowance for Credit Losses [Line Items]
Loan term	5 years

Other_Real_Estate_Owned_Rollfo

Other Real Estate Owned (Rollforward) (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Other real estate owned
Balance, beginning of period	$965	$1,115	$1,210
Other real estate acquired through foreclosure of loans receivable	459	1,075	738
Former bank premises real estate owned	0	796	0
Other real estate sold	-924	-1,497	-807
Write down of other real estate	-426	-524	-26
Balance, end of period	74	965	1,115
Acquired other real estate owned
Balance, beginning of period	46,222	45,062	84,496
Other real estate acquired through mergers and acquisitions	1,620	0	0
Other real estate acquired through foreclosure of loans receivable	29,859	77,243	40,780
Other real estate sold	-56,460	-55,023	-50,292
Write down of other real estate	-12,747	-21,060	-29,922
Balance, end of period	8,494	46,222	45,062
Other Real Estate	$8,568	$47,187	$46,177

Other_Real_Estate_Owned_Covere

Other Real Estate Owned (Covered) (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Real Estate [Abstract]
Other real estate, covered	$3,347	$46,222	$45,062

Premises_and_Equipment_Details

Premises and Equipment (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	$46,237	$42,161
Accumulated depreciation	-10,951	-8,843
Premises and equipment, net	35,286	33,318
Depreciation expense	3,000	2,900	3,000
Land
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	9,057	9,057
Building and Improvements
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	23,010	20,122
Furniture, fixtures, and equipment
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	13,314	11,986
Construction in progress
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	$856	$996

Premises_and_Equipment_Future_

Premises and Equipment (Future Minimum Lease Payments) (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013	Dec. 31, 2012
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
Operating Leases, Lease Term, Maximum	8 years
2015	$3,474
2016	3,239
2017	2,932
2018	2,835
2019	2,398
Thereafter	9,237
Total	24,115	[1]
Future minimum payments due, future minimum sublease rentals	4,400
Rent expense, net	$2,500		$2,800	$2,600

[1]	The total future minimum lease commitments have not been reduced by minimum sublease rentals of $4.4 million due in the future from noncancelable subleases.

Goodwill_and_Other_Intangible_2

Goodwill and Other Intangible Assets (Rollforward) (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Goodwill [Roll Forward]
Balance, beginning of year	$10,381	$10,381
Bank of Atlanta acquisition	225	0
Balance, end of year	10,606	10,381	10,381
Finite-lived Intangible Assets [Roll Forward]
Balance, beginning of year		6,297	6,297
Bank of Atlanta acquisition	1,460	0
Accumulated amortization	-5,005	-4,311
Balance, end of year	2,752	1,986
Total goodwill and other intangibles	13,358	12,367
Amortization of intangibles	$694	$1,202	$1,029

Goodwill_and_Other_Intangible_3

Goodwill and Other Intangible Assets (Future Amortization Expense) (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2015	$829
2016	751
2017	661
2018	292
2019	219
Total amortization expense	$2,752	$1,986

SBA_Servicing_Rights_Narrative

SBA Servicing Rights (Narrative) (Details) (USD $)	12 Months Ended
SBA Servicing Rights (Narrative) (Details) (USD $)	Dec. 31, 2014
Transfers and Servicing [Abstract]
SBA loans sold, unpaid principal balance	$2,600,000
SBA loans sold, gains on sales	181,000
SBA servicing fee income	296,000
SBA loans serviced	$71,100,000

SBA_Servicing_Rights_Rollforwa

SBA Servicing Rights (Rollforward) (Details) (SBA Loans, USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014
SBA Loans
Servicing Asset at Fair Value, Amount [Roll Forward]
Balance, beginning of period	$0
Bank of Atlanta acquisition	1,509
Additions	45
Fair value adjustments	-38
Balance, end of period	$1,516

SBA_Servicing_Rights_SBA_Servi

SBA Servicing Rights SBA Servicing Rights (Fair Value Assumptions) (Details) (SBA Loans, USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
SBA Loans
Fair Value Assumption, Date of Securitization or Asset-backed Financing Arrangement, Transferor's Continuing Involvement, Servicing Assets or Liabilities [Line Items]
Fair value	$1,516	$0
Weighted average discount rate	11.30%
Prepayment speed	6.70%
Weighted average remaining life (years)	7 years 9 months

FDIC_Receivable_for_Loss_Share2

FDIC Receivable for Loss Share Agreements (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
FDIC Indemnification Asset [Roll Forward]
Balance, beginning of period	$107,843	$356,866	$529,440
Provision for loan losses attributable to FDIC for loss share agreements	-2,890	-30,188	40,556
Wires received	-45,251	-125,960	-222,180
Net charge-offs, write-downs and other losses	-28,169	-19,564	21,377
Amortization	-15,785	-87,884	-32,569
External expenses qualifying under loss share agreements	6,572	14,573	20,242
Balance, end of period	22,320	107,843	356,866
Clawback liability	$5,665

Deposits_Details

Deposits (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Deposits [Abstract]
Noninterest-bearing demand deposits	$577,295	$468,138
Interest-bearing transaction accounts	495,966	367,983
Savings and money market deposits	954,626	892,136
Time deposits less than $250,000	247,757	267,308
Time deposits $250,000 or greater	18,946	26,130
Brokered and wholesale time deposits	97,092	106,630
Total deposits	2,391,682	2,128,325
Overdrawn deposit accounts reclassified as loans	259	308
Maturities of Time Deposits [Abstract]
2015	239,420
2016	95,593
2017	20,302
2018	4,906
2019	3,448
Thereafter	126
Total time, brokered, and wholesale deposits	363,795
Balance
2015	17,998
2016	26,541
2017	4,050
2018	2,000
Total brokered deposits	$50,589	$70,700
Average Cost
2015	0.81%
2016	1.05%
2017	1.28%
2018	1.58%
Total brokered deposits, weighted average rate	1.00%

Securities_Sold_Under_Repurcha1

Securities Sold Under Repurchase Agreements (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Repurchase Agreements [Line Items]
Securities sold under agreements to repurchase	$0	$1,216
Weighted average rate of outstanding agreements		0.10%
Securities Pledged as Collateral
Repurchase Agreements [Line Items]
Securities pledged as collateral approximate value		$2,500

Notes_Payable_Details

Notes Payable (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Notes Payable [Abstract]
Notes payable	$2,771	$5,682

Derivative_Instruments_and_Hed2

Derivative Instruments and Hedging Activities (Balance Sheet Disclosures) (Details) (Interest Rate Products, USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Derivatives, Fair Value [Line Items]
Asset Derivatives	$3,879	$8,087
Liability derivatives	1,666	764
Designated as Hedging Instrument \| Other Assets
Derivatives, Fair Value [Line Items]
Asset Derivatives	3,879	8,087
Designated as Hedging Instrument \| Other Liabilities
Derivatives, Fair Value [Line Items]
Liability derivatives	$1,666	$764

Derivative_Instruments_and_Hed3

Derivative Instruments and Hedging Activities (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Mar. 31, 2013
Derivative [Line Items]
Amount to be reclassified from accumulated OCI into income during next twelve months	$546,000
Credit Risk Contract
Derivative [Line Items]
Cash collateral received under credit risk related contingent features	2,700,000
Credit risk derivative liabilities	456,000
Designated as Hedging Instrument \| Fair Value Hedging \| Interest Income
Derivative [Line Items]
Gain (loss) recognized in income, ineffective portion	49,000	125,000	-8,000
Designated as Hedging Instrument \| Interest Rate Swap
Derivative [Line Items]
Number of interest rate derivatives held	95
Total Interest rate swaps and caps	177,200,000
Designated as Hedging Instrument \| Interest Rate Swap \| Noninterest Income
Derivative [Line Items]
Total net (loss) gain recognized in income on fair value hedge ineffectiveness	-609,000	840,000	-165,000
Designated as Hedging Instrument \| Interest Rate Swap \| Interest Income
Derivative [Line Items]
Loss on derivative	-2,100,000	-1,500,000	-698,000
Designated as Hedging Instrument \| Interest Rate Swap \| Fair Value Hedging \| Noninterest Income
Derivative [Line Items]
Total net (loss) gain recognized in income on fair value hedge ineffectiveness	-609,000	840,000	-165,000
Amount of (loss) gain recognized in income on derivatives	-3,031,000	4,568,000	-1,546,000
Designated as Hedging Instrument \| Interest Rate Cap
Derivative [Line Items]
Total Interest rate swaps and caps				200,000,000
Term of contract	5 years
Not Designated as Hedging Instrument \| Interest Rate Swap \| Noninterest Income
Derivative [Line Items]
Amount of (loss) gain recognized in income on derivatives	$47,000

Derivative_Instruments_and_Hed4

Derivative Instruments and Hedging Activities Derivative Instruments and Hedging Activities (Fair Value Hedges) (Details) (Interest Rate Swap, Noninterest Income, Designated as Hedging Instrument, USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Derivative Instruments, Gain (Loss) [Line Items]
Total net (loss) gain recognized in income on fair value hedge ineffectiveness	($609)	$840	($165)
Fair Value Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (loss) gain recognized in income on derivatives	-3,031	4,568	-1,546
Amount of gain (loss) recognized in income on hedged items	2,422	-3,728	1,381
Total net (loss) gain recognized in income on fair value hedge ineffectiveness	($609)	$840	($165)

Derivative_Instruments_and_Hed5

Derivative Instruments and Hedging Activities (Cash Flow Hedges) (Details) (Interest Rate Cap, Designated as Hedging Instrument, Cash Flow Hedging, USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Derivative Instruments, Gain (Loss) [Line Items]
Total (loss) gain recognized in consolidated statements of comprehensive income	($1,777)	$1,304	$0
Other Comprehensive Income (Loss)
Derivative Instruments, Gain (Loss) [Line Items]
Total (loss) gain recognized in consolidated statements of comprehensive income	-2,036	1,264	0
Interest Expense
Derivative Instruments, Gain (Loss) [Line Items]
Amount of loss reclassified from AOCI into income (effective portion)	$259	$40	$0

Derivative_Instruments_and_Hed6

Derivative Instruments and Hedging Activities Derivative Instruments and Hedging Activities (Effects of Offsetting Derivative Financial Instruments) (Details) (Interest Rate Products, USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Interest Rate Products
Offsetting Derivative Assets [Abstract]
Gross Amounts Recognized	$3,879	$8,087
Gross Amounts Offset in the Statement of Financial Condition	0	0
Net Amounts Presented in the Statement of Financial Condition	3,879	8,087
Gross Amounts of Assets Not Offset in Statement of Financial Condition [Abstract]
Financial Instruments	-1,666	-764
Collateral Received/Posted	-2,654	-6,560
Net Amount	-441	763
Offsetting Derivative Liabilities [Abstract]
Gross Amounts Recognized	1,666	764
Gross Amounts Offset in the Statement of Financial Condition	0	0
Net Amounts Presented in the Statement of Financial Condition	1,666	764
Gross Amounts of Liabilities Not Offset in the Statement of Financial Condition [Abstract]
Financial Instruments	-1,666	-764
Collateral Received/Posted	0	0
Net Amount	$0	$0

Stock_Warrants_Stock_Warrants_

Stock Warrants Stock Warrants (Details) (USD $)	12 Months Ended
Stock Warrants Stock Warrants (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
Class of Warrant or Right [Line Items]
Number of shares available to purchase by right holder per right	1
Contractual period	10 years
Repurchase price of exercised warrants	12
Expiration period	3 years
Class of Warrant or Right, Outstanding [Roll Forward]
Balance warrants (in shares)	2,623,824	2,640,283
Issued (in shares)	0	0
Exercised (in shares)	-42,633	-15,000
Forfeited (in shares)	0	-1,459
Balance warrants (in shares)	2,581,191	2,623,824
Class of Warrant or Right, Weighted Average Exercise Price [Abstract]
Balance, Weighted Average Exercise Price (in dollars per warrant)	9.84	9.84
Issued, Weighted Average Exercise Price (in dollars per warrant)	0	0
Exercised, Weighted Average Exercise Price (in dollars per warrant)	6.24	10
Forfeited, Weighted Average Exercise Price (in dollars per warrant)	0	11.21
Balance, Weighted Average Exercise Price (in dollars per warrant)	9.9	9.84
Minimum
Class of Warrant or Right [Line Items]
Strike prices of warrants	$5
Repurchase price of outstanding warrants	2
Maximum
Class of Warrant or Right [Line Items]
Strike prices of warrants	$12
Repurchase price of outstanding warrants	2.32

ShareBased_Compensation_Narrat

Share-Based Compensation (Narrative) (Details) (USD $)	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized	3,160,000
Share-based compensation expense recognized	$2,035	$1,321	$779
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Contractual period	10 years
Number of shares of unvested stock approved for accelerated vesting		28,918
Share-based compensation expense recognized	0	14	69
Tax benefit from compensation expense		5	24
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	5 years
Number of shares of unvested stock approved for accelerated vesting	44,138
Share-based compensation expense recognized	2,035	1,307	710
Tax benefit from compensation expense	692	444	251
Unearned share-based compensation associated with restricted stock	$5,401
Compensation costs not yet recognized, weighted average recognition period (in years)	3 years 5 months

ShareBased_Compensation_Stock_

Share-Based Compensation (Stock Option Valuation Assumptions) (Details) (Stock Options, USD $)	12 Months Ended
	Dec. 31, 2013
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility	28.60%
Expected dividend yield	0.00%
Risk-free interest rate	0.50%
Expected term (in years)	2 years 6 months
Weighted-average grant-date fair value	$3.48

ShareBased_Compensation_Stock_1

Share-Based Compensation (Stock Option Activity) (Details) (Stock Options, USD $)	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2014
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Options, Outstanding options at end of year (in shares)	28,918
Number of Options, Fully vested and exercisable, end of year (in shares)	28,918
Weighted Average Exercise Price, Outstanding options, end of year (in usd per share)	$14.37
Weighted Average Exercise Price, Fully vested and exercisable options, end of year (in usd per share)	$14.37
Weighted Average Remaining Contractual Life, Outstanding options, end of year	6 years 7 months 25 days
Weighted Average Remaining Contractual Life, Fully vested and exercisable options, end of year	6 years 7 months 25 days
Aggregate Intrinsic Value, Outstanding options, end of year	$162
Aggregate Intrinsic Value, Fully vested and exercisable options, end of year	$162

ShareBased_Compensation_Restri

Share-Based Compensation (Restricted Stock Awards Activity) (Details) (Restricted Stock, USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Shares, Outstanding restricted stock beginning of year	431,269
Shares, Granted	153,232	181,814	174,000
Shares, Forfeited	-16,250
Shares, Earned and Issued	-93,205
Shares, Outstanding restricted stock at end of year	475,046	431,269
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Weighted Average Grant Date Fair Value, Outstanding restricted stock beginning of year (in usd per share)	$15.81
Weighted Average Grant Date Fair Value, Granted (in usd per share)	$16.60	$16.33	$16.31
Weighted Average Grant Date Fair Value, Forfeited (in usd per share)	$14.86
Weighted Average Grant Date Fair Value, Earned (in usd per share)	$14.07
Weighted Average Grant Date Fair Value, Outstanding restricted stock at end of year (in usd per share)	$16.43	$15.81

Employee_Benefit_Plan_Details

Employee Benefit Plan (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Compensation and Retirement Disclosure [Abstract]
Defined Contribution Plan, Employers Matching Contribution, Annual Vesting Percentage	100.00%	100.00%	20.00%
Maximum percent of eligible participant compensation	5.00%	5.00%	5.00%
Requisite service period			1 year
Commencement of contribution vesting			1 year
Contribution vesting period			5 years
Compensation expense recognized	$2	$1.60	$1.40

Regulatory_Matters_Regulatory_

Regulatory Matters (Regulatory Ratios) (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Consolidated
Total Capital to Risk-Weighted Assets
Capital to Risk-Weighted Assets, Amount	$470,869	$438,670
Capital to Risk-Weighted Assets, Ratio	24.37%	29.11%
Capital to Risk-Weighted Assets, Required for Capital Adequacy, Amount	154,543	120,549
Capital to Risk-Weighted Assets, Required for Capital Adequacy to Risk Weighted Assets, Ratio	8.00%	8.00%
Capital to Risk-Weighted Assets, Required to be Well Capitalized, Amount	193,178	150,686
Capital to Risk-Weighted Assets, Required to be Well Capitalized to Risk Weighted Assets, Ratio	10.00%	10.00%
Tier I Capital to Risk-Weighted Assets
Tier 1 Risk Based Capital to Risk-Weighted Assets, Amount	446,666	419,646
Tier 1 Risk Based Capital to Risk-Weighted Assets, Ratio	23.12%	27.85%
Tier 1 Risk Based Capital to Risk-Weighted Assets, Required for Capital Adequacy, Amount	77,271	60,274
Tier 1 Risk Based Capital to Risk-Weighted Assets, Required for Capital Adequacy to Risk Weighted Assets, Ratio	4.00%	4.00%
Tier 1 Risk Based Capital to Risk-Weighted Assets, Required to be Well Capitalized, Amount	115,907	90,412
Tier 1 Risk Based Capital to Risk-Weighted Assets, Required to be Well Capitalized to Risk Weighted Assets, Ratio	6.00%	6.00%
Tier I Capital to Average Assets
Tier 1 Leverage Capital to Average Assets, Amount	446,666	419,646
Tier 1 Leverage Capital to Average Assets, Ratio	15.90%	16.55%
Tier 1 Leverage Capital to Average Assets, Required for Capital Adequacy, Amount	112,334	101,429
Tier 1 Leverage Capital to Average Assets, Required for Capital Adequacy to Average Assets, Ratio	4.00%	4.00%
Tier 1 Leverage Capital to Average Assets, Required to be Well Capitalized, Amount	0	0
State Bank
Total Capital to Risk-Weighted Assets
Capital to Risk-Weighted Assets, Amount	383,957	381,230
Capital to Risk-Weighted Assets, Ratio	19.88%	25.32%
Capital to Risk-Weighted Assets, Required for Capital Adequacy, Amount	154,511	120,463
Capital to Risk-Weighted Assets, Required for Capital Adequacy to Risk Weighted Assets, Ratio	8.00%	8.00%
Capital to Risk-Weighted Assets, Required to be Well Capitalized, Amount	193,139	150,578
Capital to Risk-Weighted Assets, Required to be Well Capitalized to Risk Weighted Assets, Ratio	10.00%	10.00%
Tier I Capital to Risk-Weighted Assets
Tier 1 Risk Based Capital to Risk-Weighted Assets, Amount	359,759	362,219
Tier 1 Risk Based Capital to Risk-Weighted Assets, Ratio	18.63%	24.06%
Tier 1 Risk Based Capital to Risk-Weighted Assets, Required for Capital Adequacy, Amount	77,256	60,231
Tier 1 Risk Based Capital to Risk-Weighted Assets, Required for Capital Adequacy to Risk Weighted Assets, Ratio	4.00%	4.00%
Tier 1 Risk Based Capital to Risk-Weighted Assets, Required to be Well Capitalized, Amount	115,883	90,347
Tier 1 Risk Based Capital to Risk-Weighted Assets, Required to be Well Capitalized to Risk Weighted Assets, Ratio	6.00%	6.00%
Tier I Capital to Average Assets
Tier 1 Leverage Capital to Average Assets, Amount	359,759	362,219
Tier 1 Leverage Capital to Average Assets, Ratio	12.84%	14.28%
Tier 1 Leverage Capital to Average Assets, Required for Capital Adequacy, Amount	112,112	101,438
Tier 1 Leverage Capital to Average Assets, Required for Capital Adequacy to Average Assets, Ratio	4.00%	4.00%
Tier 1 Leverage Capital to Average Assets, Required to be Well Capitalized, Amount	$140,139	$126,797
Tier 1 Leverage Capital to Average Assets, Required to be Well Capitalized to Average Assets, Ratio	5.00%	5.00%

Regulatory_Matters_Regulatory_1

Regulatory Matters Regulatory Matters (Narrative) (Details) (USD $)	3 Months Ended				12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
FDIC, Minimum leverage ratio required for capital adequacy	10.00%				10.00%
FDIC, Minimum risk-based capital ratio required for capital adequacy	12.00%				12.00%
Cash and amounts due from depository institutions	$10,550,000				$10,550,000	$8,518,000
Cash dividends paid per common share (in USD per share)	$0.04	$0.04	$0.04	$0.03	$0.15	$0.12	$0.06
Cash required reserves, Federal Reserve Bank	99,300,000				99,300,000	76,400,000
Parent Company
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Cash and amounts due from depository institutions	85,607,000				85,607,000	56,365,000
State Bank
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Capacity to pay dividends without prior regulatory approval	$0				$0

Commitments_and_Contingent_Lia2

Commitments and Contingent Liabilities (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Commitments [Line Items]
Commitments	432,428	$301,580
Minimum
Commitments [Line Items]
Fixed rate loan commitments maturity	1 month
Maximum
Commitments [Line Items]
Fixed rate loan commitments maturity	10 years
Fixed \| Commitments to extend credit
Commitments [Line Items]
Commitments	21,276	9,848
Fixed \| Financial standby letters of credit:
Commitments [Line Items]
Commitments	846	379
Variable \| Commitments to extend credit
Commitments [Line Items]
Commitments	405,956	290,079
Variable \| Financial standby letters of credit:
Commitments [Line Items]
Commitments	4,350	$1,274

Fair_Value_Assets_and_Liabilit

Fair Value (Assets and Liabilities Measured on Recurring Basis) (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale	$640,086	$387,048
Measured on recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale	645,481	395,135
Derivative financial Instruments, Assets	3,879	8,087
SBA servicing rights	1,516
Derivative financial instruments, Liabilities	1,666	764
Measured on recurring basis \| US Government securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale	117,349	81,111
Measured on recurring basis \| States and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale	5,897	9,367
Measured on recurring basis \| Residential mortgage-backed securities - nonagency
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale	115,031	117,647
Measured on recurring basis \| Residential mortgage backed securities - agency
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale	352,528	175,926
Measured on recurring basis \| Asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale	26,700	2,940
Measured on recurring basis \| Corporate securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale	22,581
Measured on recurring basis \| Equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale		57
Measured on recurring basis \| Quoted Market Prices in Active Markets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale	0	818
Derivative financial Instruments, Assets	0	0
SBA servicing rights	0
Derivative financial instruments, Liabilities	0	0
Measured on recurring basis \| Quoted Market Prices in Active Markets (Level 1) \| US Government securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale	0	761
Measured on recurring basis \| Quoted Market Prices in Active Markets (Level 1) \| States and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale	0	0
Measured on recurring basis \| Quoted Market Prices in Active Markets (Level 1) \| Residential mortgage-backed securities - nonagency
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale	0	0
Measured on recurring basis \| Quoted Market Prices in Active Markets (Level 1) \| Residential mortgage backed securities - agency
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale	0	0
Measured on recurring basis \| Quoted Market Prices in Active Markets (Level 1) \| Asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale	0	0
Measured on recurring basis \| Quoted Market Prices in Active Markets (Level 1) \| Corporate securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale	0
Measured on recurring basis \| Quoted Market Prices in Active Markets (Level 1) \| Equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale		57
Measured on recurring basis \| Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale	643,965	394,317
Derivative financial Instruments, Assets	3,879	8,087
SBA servicing rights	0
Derivative financial instruments, Liabilities	1,666	764
Measured on recurring basis \| Significant Other Observable Inputs (Level 2) \| US Government securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale	117,349	80,350
Measured on recurring basis \| Significant Other Observable Inputs (Level 2) \| States and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale	5,897	9,367
Measured on recurring basis \| Significant Other Observable Inputs (Level 2) \| Residential mortgage-backed securities - nonagency
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale	115,031	117,647
Measured on recurring basis \| Significant Other Observable Inputs (Level 2) \| Residential mortgage backed securities - agency
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale	352,528	175,926
Measured on recurring basis \| Significant Other Observable Inputs (Level 2) \| Asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale	26,700	2,940
Measured on recurring basis \| Significant Other Observable Inputs (Level 2) \| Corporate securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale	22,581
Measured on recurring basis \| Significant Other Observable Inputs (Level 2) \| Equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale		0
Measured on recurring basis \| Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale	1,516	0
Derivative financial Instruments, Assets	0	0
SBA servicing rights	1,516
Derivative financial instruments, Liabilities	0	0
Measured on recurring basis \| Significant Unobservable Inputs (Level 3) \| US Government securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale	0	0
Measured on recurring basis \| Significant Unobservable Inputs (Level 3) \| States and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale	0	0
Measured on recurring basis \| Significant Unobservable Inputs (Level 3) \| Residential mortgage-backed securities - nonagency
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale	0	0
Measured on recurring basis \| Significant Unobservable Inputs (Level 3) \| Residential mortgage backed securities - agency
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale	0	0
Measured on recurring basis \| Significant Unobservable Inputs (Level 3) \| Asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale	0	0
Measured on recurring basis \| Significant Unobservable Inputs (Level 3) \| Corporate securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale	0
Measured on recurring basis \| Significant Unobservable Inputs (Level 3) \| Equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale		$0

Fair_Value_Financial_Assets_Me

Fair Value (Financial Assets Measured on a Nonrecurring Basis) (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans held for sale	$3,174	$897
Impaired loans, unpaid principal balance	7,052	3,061
Impaired loans, valuation allowance	486	303
Financial assets measured on a Nonrecurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans held for sale	3,174	897
Total nonrecurring assets at fair value	8,341	2,859
Financial assets measured on a Nonrecurring basis \| Collateral Dependent
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	5,167	1,962
Impaired loans, unpaid principal balance	5,700	2,300
Impaired loans, valuation allowance	486	303
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]
Mortgage loans held for sale	0	0
Total nonrecurring assets at fair value	0	0
Financial assets measured on a Nonrecurring basis \| Quoted Market Prices in Active Markets (Level 1) \| Collateral Dependent
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	0	0
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]
Mortgage loans held for sale	3,174	897
Total nonrecurring assets at fair value	3,174	897
Financial assets measured on a Nonrecurring basis \| Significant Other Observable Inputs (Level 2) \| Collateral Dependent
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	0	0
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]
Mortgage loans held for sale	0	0
Total nonrecurring assets at fair value	5,167	1,962
Financial assets measured on a Nonrecurring basis \| Significant Unobservable Inputs (Level 3) \| Collateral Dependent
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	$5,167	$1,962

Fair_Value_Nonfinacial_Assets_

Fair Value (Nonfinacial Assets Measured on a Nonrecurring Basis) (Details) (Nonfinancial assets measured on a nonrecurring basis, USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Real Estate Owned	$10,939	$56,962
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	10,939	56,962
Other Real Estate Owned
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Real Estate Owned	80	980
Other Real Estate Owned \| 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
Other Real Estate Owned \| 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
Other Real Estate Owned \| Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Real Estate Owned	80	980
Acquired Other Real Estate Owned
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Real Estate Owned	10,859	55,982
Acquired Other Real Estate Owned \| 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
Acquired Other Real Estate Owned \| 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
Acquired Other Real Estate Owned \| Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Real Estate Owned	$10,859	$55,982

Fair_Value_Reconciliation_of_O

Fair Value (Reconciliation of Other Real Estate Owned) (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate owned	$74	$965	$1,115	$1,210
Nonfinancial 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	10,939	56,962
Other Real Estate Owned \| Nonfinancial 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	80	980
Estimated selling costs and other adjustments	-6	-15
Other real estate owned	74	965
Acquired Other Real Estate Owned \| Nonfinancial 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	10,859	55,982
Estimated selling costs and other adjustments	-2,365	-9,760
Other real estate owned	$8,494	$46,222

Fair_Value_Unobservable_Inputs

Fair Value (Unobservable Inputs) (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Market Approach Valuation Technique
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	1,516
Market Approach Valuation Technique \| Collateral Dependent
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans - collateral dependent	5,167	1,962
SBA Servicing Rights \| Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount rate	8.00%
Prepayment speed	4.00%
SBA Servicing Rights \| Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount rate	14.00%
Prepayment speed	9.00%
SBA Servicing Rights \| Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount rate	11.00%
Prepayment speed	7.00%
Impaired 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%
Impaired 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%
Impaired 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%	13.00%
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	0.00%	31.00%
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	0.00%	6.00%
Other Real Estate Owned \| Market Approach Valuation Technique
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate owned at fair value	80	980
Acquired 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%
Acquired 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	76.00%	84.00%
Acquired 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	45.00%	39.00%
Acquired Other Real Estate Owned \| Market Approach Valuation Technique
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate owned at fair value	10,859	55,982

Fair_Value_Estimated_Fair_Valu

Fair Value (Estimated Fair Value of Financial Assets and Liabilities) (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Fair Value Inputs, Assets, Quantative Information [Line Items]
Investment securities available-for-sale	$640,086	$387,048
Other real estate owned	74	965	1,115	1,210
Carrying Amount \| Levels 1 & 2
Fair Value Inputs, Assets, Quantative Information [Line Items]
Investment securities available-for-sale	640,086	387,048
Carrying Amount \| Level 1
Fair Value Inputs, Assets, Quantative Information [Line Items]
Cash and cash equivalents	481,158	598,749
Carrying Amount \| Level 2
Fair Value Inputs, Assets, Quantative Information [Line Items]
Mortgage loans held for sale	3,174	897
Derivative financial instruments	3,879	8,087
Accrued interest receivable	5,989	2,935
Deposits	2,391,682	2,128,325
Securities sold under agreements to repurchase	0	1,216
Notes payable	2,771	5,682
Derivative financial instruments	1,666	764
Accrued interest payable	887	865
Carrying Amount \| Level 3
Fair Value Inputs, Assets, Quantative Information [Line Items]
Net loans	1,605,891	1,346,904
Other real estate owned	8,568	47,187
FDIC receivable for loss share agreements, net	22,320	107,843
SBA servicing rights	1,516	0
Federal Home Loan Bank stock	2,512	3,195
Estimate of Fair Value \| Levels 1 & 2
Fair Value Inputs, Assets, Quantative Information [Line Items]
Investment securities available-for-sale	640,086	387,048
Estimate of Fair Value \| Level 1
Fair Value Inputs, Assets, Quantative Information [Line Items]
Cash and cash equivalents	481,158	598,749
Estimate of Fair Value \| Level 2
Fair Value Inputs, Assets, Quantative Information [Line Items]
Mortgage loans held for sale	3,245	897
Derivative financial instruments	3,879	8,087
Accrued interest receivable	5,989	2,935
Deposits	2,391,805	2,128,611
Securities sold under agreements to repurchase	0	1,216
Notes payable	2,771	5,682
Derivative financial instruments	1,666	764
Accrued interest payable	887	865
Estimate of Fair Value \| Level 3
Fair Value Inputs, Assets, Quantative Information [Line Items]
Net loans	1,646,222	1,396,958
Other real estate owned	10,939	56,962
FDIC receivable for loss share agreements, net	7,572	58,496
SBA servicing rights	1,516	0
Federal Home Loan Bank stock	$2,512	$3,195

Income_Taxes_Components_of_Inc

Income Taxes (Components of Income Tax Expense (Benefit)) (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Current tax provision:
Federal	$25,617	$46,180	$20,726
State	2,885	4,784	582
Current income tax expense (benefit)	28,502	50,964	21,308
Deferred tax provision:
Federal	-8,970	-39,709	-8,877
State	-1,211	-4,688	-9
Deferred income tax expense (benefit)	-10,181	-44,397	-8,886
Total income tax provision	$18,321	$6,567	$12,422

Income_Taxes_Effective_Income_

Income Taxes (Effective Income Tax Reconciliation) (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax Disclosure [Abstract]
Federal statutory rate (as a percent)	35.00%
Statutory Federal income taxes	$17,234	$6,760	$12,307
State taxes, net of federal benefit	1,088	62	372
Tax-exempt interest	-177	-247	-143
Bank-owned life insurance income	-467	-474	-489
Other	643	466	375
Total income tax provision	$18,321	$6,567	$12,422

Income_Taxes_Income_Taxes_Defe

Income Taxes Income Taxes (Deferred Tax Assets and Liabilities) (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
Deferred tax assets
Allowance for loan losses	$11,077,000	$13,176,000
Net operating losses and credit carryforward	5,658,000	7,000
Accrued compensation	4,095,000	3,941,000
Tax basis difference on acquired assets	2,426,000	0
Deferred Tax Assets, FDIC Clawback Liability	2,191,000	1,812,000
Other real estate owned	554,000	8,000
Unrealized losses on cash flow hedges	183,000	0
Estimated loss on acquired failed bank assets	0	30,328,000
Other	618,000	80,000
Total deferred tax assets	26,802,000	49,352,000
Deferred tax liabilities
FDIC loss share receivable	-8,633,000	-39,901,000
Intangible asset basis difference	-3,880,000	-3,364,000
Unrealized gains on securities available-for-sale	-2,655,000	-2,327,000
Deferred gain on FDIC-assisted transactions	-1,532,000	-12,985,000
Estimated gain on acquired failed bank assets	-1,308,000	0
Premises and equipment	-883,000	-1,477,000
Unrealized gains on cash flow hedges	0	-457,000
Other	-1,187,000	-1,188,000
Total deferred tax liabilities	-20,078,000	-61,699,000
Net Deferred Tax Asset (Liability)	6,724,000	-12,347,000
Net operating loss carryforwards	15,000,000	180,000
Net operating loss carryforwards annual limitation	$800,000

Earnings_Per_Share_Details

Earnings Per Share (Details) (USD $)	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Earnings Per Share [Abstract]
Net income	$30,918	$12,747	$22,742
Weighted average common shares outstanding	32,175,363	31,978,844	31,696,358
Weighted average dilutive grants	1,560,989	1,311,721	1,193,916
Weighted average common shares outstanding including dilutive grants	33,736,352	33,290,565	32,890,274
Basic (usd per share)	$0.96	$0.40	$0.72
Diluted (usd per share)	$0.92	$0.38	$0.69

Accumulated_Other_Comprehensiv2

Accumulated Other Comprehensive Income (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance, beginning of year	$5,170	$8,528	($2,677)
Other comprehensive income (loss) before income taxes:
Net change in unrealized gains (losses)	-1,974	-4,125	17,557
Amounts reclassified for net (gains) losses realized and included in earnings	13	-1,041	-318
Income tax (benefit) expense	-711	-1,808	6,034
Balance, end of year	3,920	5,170	8,528
Investment Securities Available-for-Sale
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance, beginning of year	4,323	8,528	-2,677
Other comprehensive income (loss) before income taxes:
Net change in unrealized gains (losses)	62	-5,389	17,557
Amounts reclassified for net (gains) losses realized and included in earnings	-246	-1,081	-318
Income tax (benefit) expense	-71	-2,265	6,034
Balance, end of year	4,210	4,323	8,528
Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance, beginning of year	847	0	0
Other comprehensive income (loss) before income taxes:
Net change in unrealized gains (losses)	-2,036	1,264	0
Amounts reclassified for net (gains) losses realized and included in earnings	259	40	0
Income tax (benefit) expense	-640	457	0
Balance, end of year	($290)	$847	$0

Accumulated_Other_Comprehensiv3

Accumulated Other Comprehensive Income Reclassifications out of Accumulated Other Comprehensive Income (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest Expense	($7,520)	($7,933)	($9,749)
Income Tax Expense (Benefit)	-18,321	-6,567	-12,422
Investment Securities Available-for-Sale \| Reclassifications out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Gain (Loss) on Investments, Excluding Other than Temporary Impairments	-246	-1,081	-318
Income Tax Expense (Benefit)	95	378	111
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	-151	-703	-207
Cash Flow Hedges \| Reclassifications out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest Expense	259	40	0
Income Tax Expense (Benefit)	-100	-14	0
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	$159	$26	$0

Condensed_Financial_Informatio2

Condensed Financial Information of State Bank Financial Corporation (Parent Company Only Financial Statements) (Condensed Statements of Financial Condition) (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Assets [Abstract]
Cash and due from banks	$10,550	$8,518
Other assets	29,374	30,930
Total assets	2,882,210	2,605,388
Liabilities:
Other liabilities	23,662	32,982
Total liabilities	2,418,115	2,168,205
Shareholders' equity	464,095	437,183	430,216	397,288
Total liabilities and shareholders' equity	2,882,210	2,605,388
Parent Company
Assets [Abstract]
Cash and due from banks	85,607	56,365
Investment in subsidiary	377,188	379,756
Other assets	1,830	1,062
Total assets	464,625	437,183
Liabilities:
Other liabilities	530	0
Total liabilities	530	0
Shareholders' equity	464,095	437,183
Total liabilities and shareholders' equity	$464,625	$437,183

Condensed_Financial_Informatio3

Condensed Financial Information of State Bank Financial Corporation (Parent Company Only Financial Statements) (Condensed Statements of Income) (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Condensed Financial Statements, Captions [Line Items]
Other operating expense	$93,468	$97,967	$89,236
Income before income taxes	49,239	19,314	35,164
Income tax expense	18,321	6,567	12,422
Net income	30,918	12,747	22,742
Parent Company
Condensed Financial Statements, Captions [Line Items]
Dividends from subsidiary	59,000	25,000	21,503
Other operating expense	2,404	1,456	1,064
Income before income taxes	56,596	23,544	20,439
Income tax expense	-794	-495	-371
Income before equity in undistributed net income of subsidiary	57,390	24,039	20,810
Equity in earnings of subsidiary (less than) greater than dividends received	-26,472	-11,292	1,932
Net income	$30,918	$12,747	$22,742

Condensed_Financial_Informatio4

Condensed Financial Information of State Bank Financial Corporation (Parent Company Only Financial Statements) (Condensed Statements of Cash Flows) (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Cash Flows from Operating Activities
Net income	$30,918	$12,747	$22,742
Adjustments to reconcile net income to net cash provided by operating activities:
Share-based compensation expense	2,035	1,321	779
Net cash provided by operating activities	42,765	75,531	172,467
Cash flows from Investing Activities
Bank of Atlanta acquisition cash consideration paid	-25,154	0	0
Net cash (used in) provided by investing activities	-257,440	107,154	202,956
Cash Flows from Financing Activities
Issuance of common stock	195	100	167
Repurchase of stock warrants	0	-3	-55
Restricted stock activity	-156	0	0
Dividends paid	-4,830	-3,840	-1,910
Net cash provided by (used in) financing activities	97,084	-27,393	-151,821
Net (decrease) increase in cash and cash equivalents	-117,591	155,292	223,602
Cash and cash equivalents, beginning	598,749	443,457	219,855
Cash and cash equivalents, ending	481,158	598,749	443,457
Parent Company
Cash Flows from Operating Activities
Net income	30,918	12,747	22,742
Adjustments to reconcile net income to net cash provided by operating activities:
Undistributed earnings of subsidiary less than (greater than) dividends received	26,472	11,292	-1,932
Share-based compensation expense	2,035	1,321	779
Other, net	-238	-301	-561
Net cash provided by operating activities	59,187	25,059	21,028
Cash flows from Investing Activities
Bank of Atlanta acquisition cash consideration paid	-25,154	0	0
Net cash (used in) provided by investing activities	-25,154	0	0
Cash Flows from Financing Activities
Issuance of common stock	195	100	167
Repurchase of stock warrants	0	-3	-55
Restricted stock activity	-156	0	0
Dividends paid	-4,830	-3,840	-1,910
Net cash provided by (used in) financing activities	-4,791	-3,743	-1,798
Net (decrease) increase in cash and cash equivalents	29,242	21,316	19,230
Cash and cash equivalents, beginning	56,365	35,049	15,819
Cash and cash equivalents, ending	$85,607	$56,365	$35,049